From 710ad7b5d6538ca2531e7aba5312efd247279a56 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Thu, 23 Nov 2023 17:00:36 +0000
Subject: [PATCH 01/78] Fix for #232

---
 CHANGELOG.md                              | 13 ++++++++++++-
 front-end/utils/uibrouter.esm.js          |  3 +--
 front-end/utils/uibrouter.esm.min.js      |  4 ++--
 front-end/utils/uibrouter.esm.min.js.map  |  4 ++--
 front-end/utils/uibrouter.iife.js         |  3 +--
 front-end/utils/uibrouter.iife.min.js     |  4 ++--
 front-end/utils/uibrouter.iife.min.js.map |  4 ++--
 src/front-end-module/uibrouter.js         |  2 +-
 8 files changed, 23 insertions(+), 14 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7e917257..80d755af 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,11 +6,22 @@ typora-root-url: docs/images
 
 Please see the documentation for archived changelogs - a new archive is produced for each major version. Check the [roadmap](./docs/roadmap.md) for future developments.
 
+## To Fix
+
+
+
 ------------
 
 ## [Unreleased](https://github.com/TotallyInformation/node-red-contrib-uibuilder/compare/v6.7.0...main)
 
-Nothing currently.
+<!-- Nothing currently. -->
+
+### `uibrouter`
+
+* [Issue #232](https://github.com/TotallyInformation/node-red-contrib-uibuilder/issues/232) - Ensure origin script is removed after re-applying to ensure only 1 instance shows instead of 2.
+
+
+
 
 ## [v6.7.0](https://github.com/TotallyInformation/node-red-contrib-uibuilder/compare/v6.6.0...v6.7.0)
 
diff --git a/front-end/utils/uibrouter.esm.js b/front-end/utils/uibrouter.esm.js
index 06cfcf95..675b01ba 100644
--- a/front-end/utils/uibrouter.esm.js
+++ b/front-end/utils/uibrouter.esm.js
@@ -157,11 +157,10 @@ var UibRouter = class {
   _applyScripts(tempContainer) {
     const scripts = tempContainer.querySelectorAll("script");
     scripts.forEach((scr) => {
-      if (scr.parentElement)
-        scr.parentElement.removeChild(scr);
       const newScript = document.createElement("script");
       newScript.textContent = scr.innerText;
       tempContainer.append(newScript);
+      scr.remove();
     });
   }
   //#endregion --- ----- --
diff --git a/front-end/utils/uibrouter.esm.min.js b/front-end/utils/uibrouter.esm.min.js
index 464a9143..d5271010 100644
--- a/front-end/utils/uibrouter.esm.min.js
+++ b/front-end/utils/uibrouter.esm.min.js
@@ -1,3 +1,3 @@
-var E=Object.defineProperty;var b=(n,e,t)=>e in n?E(n,e,{enumerable:!0,configurable:!0,writable:!0,value:t}):n[e]=t;var u=(n,e,t)=>(b(n,typeof e!="symbol"?e+"":e,t),t),h=(n,e,t)=>{if(!e.has(n))throw TypeError("Cannot "+t)};var f=(n,e,t)=>(h(n,e,"read from private field"),t?t.call(n):e.get(n)),p=(n,e,t)=>{if(e.has(n))throw TypeError("Cannot add the same private member more than once");e instanceof WeakSet?e.add(n):e.set(n,t)},m=(n,e,t,r)=>(h(n,e,"write to private field"),r?r.call(n,t):e.set(n,t),t);var d,s=class{constructor(e){u(this,"config");u(this,"routeContainerEl");u(this,"currentRouteId");u(this,"previousRouteId");p(this,d,!1);if(!fetch)throw new Error("[uibrouter:constructor] UibRouter requires `fetch`. Please use a current browser or load a fetch polyfill.");if(!e)throw new Error("[uibrouter:constructor] No config provided");if(!e.routes)throw new Error("[uibrouter:constructor] No routes provided in routerConfig");e.routeContainer||(e.routeContainer="#uibroutecontainer"),this.config=e,this._setRouteContainer(),Promise.all(Object.values(e.routes).filter(t=>t.type==="url").map(this._loadExternal)).then(this._appendExternalTemplates).then(()=>{this._start()})}_setRouteContainer(){let e=document.getElementsByTagName("body")[0],t=this.routeContainerEl=document.querySelector(this.config.routeContainer);if(!t){let r=document.createElement("div");r.setAttribute("id",this.config.routeContainer.replace("#","")),e.append(r),t=this.routeContainerEl=document.querySelector(this.config.routeContainer)}}_appendExternalTemplates(e){let t=document.getElementsByTagName("head")[0];e.forEach(r=>{Array.isArray(r)?console.error(...r):t.append(r)})}_start(){f(this,d)!==!0&&(window.addEventListener("hashchange",e=>this._hashChange(e)),this.doRoute(),document.dispatchEvent(new CustomEvent("uibrouter:loaded")),uibuilder&&uibuilder.set("uibrouter","loaded"),m(this,d,!0))}_hashChange(e){this.doRoute(e)}_createRouteContent(e){let t=document.querySelector(`#${e}`);if(!t)return console.error(`[uibrouter:createRouteContent] No route template found for route selector '#${e}'. Does the link url match a defined route id?`),!1;let r=t.content.cloneNode(!0);this.isRouteExternal(e)&&this._applyScripts(r);let o=document.createElement("div");o.dataset.route=e,o.append(r);try{this.routeContainerEl.append(o)}catch(i){return console.error(`[uibrouter:createRouteContent] Failed to apply route id '${e}'. 
- ${i.message}`),!1}return!0}_loadExternal(e){let t=e.id;return fetch(e.src).then(r=>r.ok===!1?[e.id,e.src,r.status,r.statusText]:r.text()).then(r=>{if(Array.isArray(r))return r;try{let i=document.querySelector(`#${t}`);i&&i.remove()}catch{}let o=document.createElement("template");return o.innerHTML=r,o.setAttribute("id",t),o}).catch(r=>{console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${e.src}:`,r)})}_applyScripts(e){e.querySelectorAll("script").forEach(r=>{r.parentElement&&r.parentElement.removeChild(r);let o=document.createElement("script");o.textContent=r.innerText,e.append(o)})}doRoute(e){let t=this.routeContainerEl;if(!t)throw new Error("[uibrouter:doRoute] Cannot route, has router.setup() been called yet?");let r=this.keepHashFromUrl(window.location.hash);e||(e=r);let o,i;if(typeof e=="string"){if(o=this.keepHashFromUrl(e),i=r,o===""&&this.config.defaultRoute&&(o=this.config.defaultRoute),o!==r){window.location.hash=`#${o}`;return}}else if(e.type==="hashchange"){let a=e.newURL;if(a.includes("#"))i=this.keepHashFromUrl(e.oldURL),o=this.keepHashFromUrl(a);else return}else{i=r;try{o=this.keepHashFromUrl(e.target.attributes.href.value)}catch{throw new Error("[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute")}}let l=!1;if(!o||!this.routeList().includes(o))throw document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:i}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=i?`#${i}`:"",new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${o}'`);if(this.config.hide){if(i){let c=document.querySelector(`div[data-route="${i}"]`);c&&(c.style.display="none")}let a=document.querySelector(`div[data-route="${o}"]`);a?(a.style.removeProperty("display"),l=!0):l=this._createRouteContent(o)}else t.replaceChildren(),l=this._createRouteContent(o);if(l===!1){document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:i}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=i?`#${i}`:"";return}this.currentRouteId=o,this.previousRouteId=i,t.dataset.currentRoute=o,document.dispatchEvent(new CustomEvent("uibrouter:route-changed",{detail:{newRouteId:o,oldRouteId:i}})),uibuilder&&uibuilder.set("uibrouter","route changed")}getRouteConfigById(e){return Object.values(this.config.routes).filter(t=>t.id===e)[0]}isRouteExternal(e){let t=this.getRouteConfigById(e);return!!(t&&t.type==="url")}defaultRoute(){this.config.defaultRoute&&this.doRoute(this.config.defaultRoute)}removeHash(){history.pushState("",document.title,window.location.pathname+window.location.search)}noRoute(){this.removeHash(),this.routeContainerEl.replaceChildren()}keepHashFromUrl(e){return e?e.replace(/^.*#(.*)/,"$1").replace(/\?.*$/,""):""}routeList(e){return Object.values(this.config.routes).map(t=>e===!0?`#${t.id}`:t.id)}addRoutes(e){Array.isArray(e)||(e=[e]),Promise.all(Object.values(e).filter(t=>t.type==="url").map(this._loadExternal)).then(this._appendExternalTemplates).then(()=>{this.config.routes.push(...e),document.dispatchEvent(new CustomEvent("uibrouter:routes-added",{detail:e})),uibuilder&&uibuilder.set("uibrouter","routes added")})}};d=new WeakMap,u(s,"version","1.0.0");var y=s;window.UibRouter?console.warn("`UibRouter` already assigned to window. Have you tried to load it more than once?"):window.UibRouter=s;export{s as UibRouter,y as default};
+var b=Object.defineProperty;var w=(n,e,t)=>e in n?b(n,e,{enumerable:!0,configurable:!0,writable:!0,value:t}):n[e]=t;var u=(n,e,t)=>(w(n,typeof e!="symbol"?e+"":e,t),t),h=(n,e,t)=>{if(!e.has(n))throw TypeError("Cannot "+t)};var f=(n,e,t)=>(h(n,e,"read from private field"),t?t.call(n):e.get(n)),p=(n,e,t)=>{if(e.has(n))throw TypeError("Cannot add the same private member more than once");e instanceof WeakSet?e.add(n):e.set(n,t)},m=(n,e,t,r)=>(h(n,e,"write to private field"),r?r.call(n,t):e.set(n,t),t);var d,s=class{constructor(e){u(this,"config");u(this,"routeContainerEl");u(this,"currentRouteId");u(this,"previousRouteId");p(this,d,!1);if(!fetch)throw new Error("[uibrouter:constructor] UibRouter requires `fetch`. Please use a current browser or load a fetch polyfill.");if(!e)throw new Error("[uibrouter:constructor] No config provided");if(!e.routes)throw new Error("[uibrouter:constructor] No routes provided in routerConfig");e.routeContainer||(e.routeContainer="#uibroutecontainer"),this.config=e,this._setRouteContainer(),Promise.all(Object.values(e.routes).filter(t=>t.type==="url").map(this._loadExternal)).then(this._appendExternalTemplates).then(()=>{this._start()})}_setRouteContainer(){let e=document.getElementsByTagName("body")[0],t=this.routeContainerEl=document.querySelector(this.config.routeContainer);if(!t){let r=document.createElement("div");r.setAttribute("id",this.config.routeContainer.replace("#","")),e.append(r),t=this.routeContainerEl=document.querySelector(this.config.routeContainer)}}_appendExternalTemplates(e){let t=document.getElementsByTagName("head")[0];e.forEach(r=>{Array.isArray(r)?console.error(...r):t.append(r)})}_start(){f(this,d)!==!0&&(window.addEventListener("hashchange",e=>this._hashChange(e)),this.doRoute(),document.dispatchEvent(new CustomEvent("uibrouter:loaded")),uibuilder&&uibuilder.set("uibrouter","loaded"),m(this,d,!0))}_hashChange(e){this.doRoute(e)}_createRouteContent(e){let t=document.querySelector(`#${e}`);if(!t)return console.error(`[uibrouter:createRouteContent] No route template found for route selector '#${e}'. Does the link url match a defined route id?`),!1;let r=t.content.cloneNode(!0);this.isRouteExternal(e)&&this._applyScripts(r);let o=document.createElement("div");o.dataset.route=e,o.append(r);try{this.routeContainerEl.append(o)}catch(i){return console.error(`[uibrouter:createRouteContent] Failed to apply route id '${e}'. 
+ ${i.message}`),!1}return!0}_loadExternal(e){let t=e.id;return fetch(e.src).then(r=>r.ok===!1?[e.id,e.src,r.status,r.statusText]:r.text()).then(r=>{if(Array.isArray(r))return r;try{let i=document.querySelector(`#${t}`);i&&i.remove()}catch{}let o=document.createElement("template");return o.innerHTML=r,o.setAttribute("id",t),o}).catch(r=>{console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${e.src}:`,r)})}_applyScripts(e){e.querySelectorAll("script").forEach(r=>{let o=document.createElement("script");o.textContent=r.innerText,e.append(o),r.remove()})}doRoute(e){let t=this.routeContainerEl;if(!t)throw new Error("[uibrouter:doRoute] Cannot route, has router.setup() been called yet?");let r=this.keepHashFromUrl(window.location.hash);e||(e=r);let o,i;if(typeof e=="string"){if(o=this.keepHashFromUrl(e),i=r,o===""&&this.config.defaultRoute&&(o=this.config.defaultRoute),o!==r){window.location.hash=`#${o}`;return}}else if(e.type==="hashchange"){let a=e.newURL;if(a.includes("#"))i=this.keepHashFromUrl(e.oldURL),o=this.keepHashFromUrl(a);else return}else{i=r;try{o=this.keepHashFromUrl(e.target.attributes.href.value)}catch{throw new Error("[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute")}}let l=!1;if(!o||!this.routeList().includes(o))throw document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:i}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=i?`#${i}`:"",new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${o}'`);if(this.config.hide){if(i){let c=document.querySelector(`div[data-route="${i}"]`);c&&(c.style.display="none")}let a=document.querySelector(`div[data-route="${o}"]`);a?(a.style.removeProperty("display"),l=!0):l=this._createRouteContent(o)}else t.replaceChildren(),l=this._createRouteContent(o);if(l===!1){document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:i}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=i?`#${i}`:"";return}this.currentRouteId=o,this.previousRouteId=i,t.dataset.currentRoute=o,document.dispatchEvent(new CustomEvent("uibrouter:route-changed",{detail:{newRouteId:o,oldRouteId:i}})),uibuilder&&uibuilder.set("uibrouter","route changed")}getRouteConfigById(e){return Object.values(this.config.routes).filter(t=>t.id===e)[0]}isRouteExternal(e){let t=this.getRouteConfigById(e);return!!(t&&t.type==="url")}defaultRoute(){this.config.defaultRoute&&this.doRoute(this.config.defaultRoute)}removeHash(){history.pushState("",document.title,window.location.pathname+window.location.search)}noRoute(){this.removeHash(),this.routeContainerEl.replaceChildren()}keepHashFromUrl(e){return e?e.replace(/^.*#(.*)/,"$1").replace(/\?.*$/,""):""}routeList(e){return Object.values(this.config.routes).map(t=>e===!0?`#${t.id}`:t.id)}addRoutes(e){Array.isArray(e)||(e=[e]),Promise.all(Object.values(e).filter(t=>t.type==="url").map(this._loadExternal)).then(this._appendExternalTemplates).then(()=>{this.config.routes.push(...e),document.dispatchEvent(new CustomEvent("uibrouter:routes-added",{detail:e})),uibuilder&&uibuilder.set("uibrouter","routes added")})}};d=new WeakMap,u(s,"version","1.0.0");var y=s;window.UibRouter?console.warn("`UibRouter` already assigned to window. Have you tried to load it more than once?"):window.UibRouter=s;export{s as UibRouter,y as default};
 //# sourceMappingURL=uibrouter.esm.min.js.map
diff --git a/front-end/utils/uibrouter.esm.min.js.map b/front-end/utils/uibrouter.esm.min.js.map
index ba09ff5e..d5501547 100644
--- a/front-end/utils/uibrouter.esm.min.js.map
+++ b/front-end/utils/uibrouter.esm.min.js.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
   "sources": ["src/front-end-module/uibrouter.js"],
-  "sourcesContent": ["// @ts-nocheck\n/** A simple, vanilla JavaScript front-end router class\n * Included in node-red-contrib-uibuilder but is not dependent on it.\n * May be used in other contexts as desired.\n * \n * Copyright (c) 2023-2023 Julian Knight (Totally Information)\n * https://it.knightnet.org.uk\n *\n * Licensed under the Apache License, Version 2.0 (the 'License');\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an 'AS IS' BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/** ---------------------------------------------------------------------\n * TODO\n * Methods needed:\n *   Delete route\n *   Update/reload route\n *   shutdown - that removes all elements\n *   delete templates - unloads a list of (or all) templates\n *   reload templates - to facilitate updates of a list of (or all) templates\n * Additional options:\n *   unload templates after they are added to the route container. Only if hide=true. `unload: true`\n *   Maybe: options to auto-load js and css files with the same name as a template file.\n * ---------------------------------------------------------------------  */\n\n/** Type definitions\n * routeConfig\n * @typedef {object} routeDefinition Single route configuration\n * @property {string} id REQUIRED. Route ID\n * @property {string} src REQUIRED. CSS Selector for template tag routes, url for external routes\n * @property {\"url\"|undefined} [type] OPTIONAL. \"url\" for external routes\n * UibRouterConfig\n * @typedef {object} UibRouterConfig Configuration for the UiBRouter class instances\n * @property {routeDefinition[]} routes REQUIRED. Array of route definitions\n * @property {string} [defaultRoute] OPTIONAL. If set to a route id, that route will be automatically shown on load\n * @property {string} [routeContainer] OPTIONAL. CSS Selector for an HTML Element containing routes\n * @property {boolean} [hide] OPTIONAL. If TRUE, routes will be hidden/shown on change instead of removed/added\n * @property {boolean} [unload] OPTIONAL. If TRUE, route templates will be unloaded from DOM after access. Only useful with the `hide` option\n */\n\nclass UibRouter { // eslint-disable-line no-unused-vars\n    //#region --- Variables ---\n    /** Class version */\n    static version = '1.0.0'\n\n    /** Configuration settings @type {UibRouterConfig} */\n    config\n    /** Reference to the container DOM element - set in setup() @type {HTMLDivElement} */\n    routeContainerEl\n    /** The current route id after doRoute() has been called */\n    currentRouteId\n    /** The previous route id after doRoute() has been called */\n    previousRouteId\n\n    /** Internal only. Set to true when the _start() method has been called */\n    #startDone = false\n    //#endregion --- ----- ---\n\n    //#region --- Internal Methods ---\n    /** Class constructor\n     * @param {UibRouterConfig} routerConfig Configuration object\n     */\n    constructor(routerConfig) {\n        // Fetch is on desktop browsers since 2017 at latest. Not so much on mobile (Android!)\n        // May need a polyfill on mobile or old browsers.\n        if (!fetch) throw new Error('[uibrouter:constructor] UibRouter requires `fetch`. Please use a current browser or load a fetch polyfill.')\n\n        if (!routerConfig) throw new Error('[uibrouter:constructor] No config provided')\n        if (!routerConfig.routes) throw new Error('[uibrouter:constructor] No routes provided in routerConfig')\n        // Add a default route container uf needed\n        if (!routerConfig.routeContainer)routerConfig.routeContainer = '#uibroutecontainer'\n\n        // Save the config\n        this.config = routerConfig\n        // Create/access the route container element, sets this.routeContainerEl\n        this._setRouteContainer()\n\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routerConfig.routes).filter(r => r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded so we can start\n                this._start()\n            } )\n    }\n\n    /** Save a reference to, and create if necessary, the HTML element to hold routes */\n    _setRouteContainer() {\n        const body = document.getElementsByTagName('body')[0]\n        // Get reference to route container or create it\n        let routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        if (!routeContainerEl) {\n            // throw new Error(`Route container element with CSS selector '${routerConfig.routeContainer}' not found in HTML`)\n            const tempContainer = document.createElement('div')\n            tempContainer.setAttribute('id', this.config.routeContainer.replace('#', ''))\n            body.append(tempContainer)\n            routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        }\n    }\n\n    /** Load fetched external elements to templates tags under the head tag\n     * @param {HTMLElement[]} loadedElements Array of loaded external elements to add as templates to the head tag\n     */\n    _appendExternalTemplates(loadedElements) {\n        const head = document.getElementsByTagName('head')[0]\n        // Append the loaded content to the main container\n        loadedElements.forEach(element => {\n            if (Array.isArray(element)) {\n                console.error(...element)\n            } else {\n                head.append(element)\n            }\n        })\n    }\n\n    /** Called once all external templates have been loaded */\n    _start() {\n        if (this.#startDone === true) return // Don't run this again\n\n        // Listen for url hash changes and process route change\n        window.addEventListener('hashchange', (event) => this._hashChange(event) )\n        // Go to default route if no route in url and if a default is defined or ensure current route is shown\n        this.doRoute()\n        // Events on fully loaded ...\n        document.dispatchEvent(new CustomEvent('uibrouter:loaded'))\n        if (uibuilder) uibuilder.set('uibrouter', 'loaded') // eslint-disable-line no-undef\n\n        this.#startDone = true // Don't run this again\n    }\n\n    /** Called when the URL Hash changes\n     * @param {HashChangeEvent} event URL Hash change event object\n     */\n    _hashChange(event) {\n        // console.log(`[uibrouter] hashchange: ${this.keepHashFromUrl(event.oldURL)} => ${this.keepHashFromUrl(event.newURL)}` )\n        this.doRoute(event)\n    }\n\n    /** Create DOM route content from a route template (internal or external)\n     * Route templates have to be a `<template>` tag with an ID that matches the route id.\n     * @param {string} routeId ID of the route definition to use to create the content\n     * @returns {boolean} True if the route content was created successfully, false otherwise\n     */\n    _createRouteContent(routeId) {\n        const rContent = document.querySelector(`#${routeId}`)\n        if (!rContent) {\n            console.error(`[uibrouter:createRouteContent] No route template found for route selector '#${routeId}'. Does the link url match a defined route id?`)\n            return false\n        }\n        const docFrag = rContent.content.cloneNode(true)\n        // Have to re-apply the scripts to make them run - only for external templates\n        if (this.isRouteExternal(routeId)) this._applyScripts(docFrag)\n        // Create the route wrapper div with data-route attrib\n        const tempContainer = document.createElement('div')\n        tempContainer.dataset.route = routeId\n        tempContainer.append(docFrag)\n        // And finally try to append to the container\n        try {\n            this.routeContainerEl.append(tempContainer)\n        } catch (e) {\n            console.error(`[uibrouter:createRouteContent] Failed to apply route id '${routeId}'. \\n ${e.message}`)\n            return false\n        }\n        return true\n    }\n\n    /** Loads an external HTML file into a `<template>` tag, adding the router id as the template id.\n     *  or returns an error array\n     * @param {routeDefinition} routeDefinition Configuration for a single route\n     * @returns {Promise<HTMLTemplateElement[]|[string,string,number,string]>} A promise that fulfills to an HTMLTemplateElement or an array containing error information\n     */\n    _loadExternal(routeDefinition) {\n        // const id = singleConfig.src.split('/').pop().replace('.html','')\n        const id = routeDefinition.id\n        // @ts-ignore\n        return fetch(routeDefinition.src)\n            .then(response => {\n                // Fetch failed?\n                if (response.ok === false) return [routeDefinition.id, routeDefinition.src, response.status, response.statusText]\n                return response.text()\n            })\n            .then((/** @type {string} */ htmlText) => {\n                if (Array.isArray(htmlText)) return htmlText // if the fetch failed\n\n                // Check to see if template already exists, if so, remove it\n                try {\n                    const chkTemplate = document.querySelector(`#${id}`)\n                    if (chkTemplate) chkTemplate.remove()\n                } catch (e) {}\n\n                const tempContainer = document.createElement('template')\n                tempContainer.innerHTML = htmlText\n                tempContainer.setAttribute('id', id)\n                return tempContainer\n            })\n            .catch(error => {\n                console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${routeDefinition.src}:`, error)\n            })\n    }\n\n    /** Remove/re-apply scripts in a container Element so that they are executed.\n     * @param {HTMLElement} tempContainer HTML Element of container to process\n     */\n    _applyScripts(tempContainer) {\n        const scripts = tempContainer.querySelectorAll('script')\n        scripts.forEach( scr => {\n            if (scr.parentElement) scr.parentElement.removeChild(scr)\n            const newScript = document.createElement('script')\n            newScript.textContent = scr.innerText\n            tempContainer.append(newScript)\n        })\n    }\n    //#endregion --- ----- --\n\n    /** Process a routing request\n     * @param {PointerEvent|MouseEvent|HashChangeEvent|TouchEvent|string} routeSource Either string containing route id or DOM Event object either click/touch on element containing `href=\"#routeid\"` or Hash URL change event\n     */\n    doRoute(routeSource) {\n        const container = this.routeContainerEl\n        if (!container) throw new Error('[uibrouter:doRoute] Cannot route, has router.setup() been called yet?')\n\n        // Remove all the url and query param text and any leading # - returns '' if no current hash\n        const currentHash = this.keepHashFromUrl(window.location.hash)\n\n        // If no route source provided, take the current hash (which might be '' and that will trigger the default route if defined)\n        if (!routeSource) routeSource = currentHash\n\n        let newRouteId, oldRouteId\n\n        // Define new and old routes depending on different call types\n        if (typeof routeSource === 'string') { // Manually provided route id\n            // console.log(`[uibrouter:doRoute] manual: ${currentHash} => ${this.keepHashFromUrl(routeSource)}. Current: ${currentHash}` )\n            newRouteId = this.keepHashFromUrl(routeSource)\n            oldRouteId = currentHash\n            // If no hash & config has default, set the default as new\n            if (newRouteId === '' && this.config.defaultRoute) newRouteId = this.config.defaultRoute\n            // If the new route id not the same as the current one in the url hash, just change the current hash & exit\n            if (newRouteId !== currentHash ) {\n                window.location.hash = `#${newRouteId}`\n                return\n            }\n        } else if (routeSource.type === 'hashchange') { // A URL Hash change event\n            // console.log(`[uibrouter:doRoute] hashchange: ${this.keepHashFromUrl(routeSource.oldURL)} => ${this.keepHashFromUrl(routeSource.newURL)}. Current: ${currentHash}` )\n            const newUrl = routeSource.newURL\n            // Check if URL actually contains a #\n            if (newUrl.includes('#')) {\n                oldRouteId = this.keepHashFromUrl(routeSource.oldURL)\n                newRouteId = this.keepHashFromUrl(newUrl) // Only keep anything after the # & ignoring query params\n            } else return\n        } else { // A mouse click/touch event on a dom element with an href attribute\n            oldRouteId = currentHash\n            // Try to get the route name from the URL hash\n            try {\n                newRouteId = this.keepHashFromUrl(routeSource.target.attributes.href.value) // Only keep anything after the # & ignoring query params\n            } catch (e) {\n                throw new Error('[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute')\n            }\n        }\n\n        let routeShown = false\n\n        // If no defined valid route, undo and throw error\n        if (!newRouteId || !this.routeList().includes(newRouteId)) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            throw new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${newRouteId}'`)\n        }\n\n        // Show the new container (replace or show)\n        if (this.config.hide) {\n            // config.hide = true so hide previous contents\n            if (oldRouteId) {\n                /** @type {HTMLElement|null} */\n                const oldContent = document.querySelector(`div[data-route=\"${oldRouteId}\"]`)\n                if (oldContent) oldContent.style.display = 'none'\n            }\n            /** and unhide new route if possible @type {HTMLElement|null} */\n            const content = document.querySelector(`div[data-route=\"${newRouteId}\"]`)\n            if (content) {\n                content.style.removeProperty('display')\n                routeShown = true\n            } else {\n                // else create new content from template\n                routeShown = this._createRouteContent(newRouteId)\n            }\n        } else {\n            // config.hide != true so remove previous contents\n            container.replaceChildren()\n            // Create new content from template\n            routeShown = this._createRouteContent(newRouteId)\n        }\n\n        // console.log({ newRouteId, oldRouteId, currentHash, routeShown })\n\n        // Roll back the route change if the new route cannot be shown\n        if (routeShown === false) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            return\n        }\n\n        // Retain current and previous route id's\n        this.currentRouteId = newRouteId\n        this.previousRouteId = oldRouteId\n\n        // Record the current route on the route container\n        container.dataset.currentRoute = newRouteId\n\n        // Events on route changed ...\n        document.dispatchEvent(new CustomEvent('uibrouter:route-changed', { detail: { newRouteId, oldRouteId } }))\n        if (uibuilder) uibuilder.set('uibrouter', 'route changed') // eslint-disable-line no-undef\n    }\n\n    /** Return a route config given a route id (returns undefined if route not found)\n     * @param {string} routeId Route ID to search for\n     * @returns {routeDefinition|undefined} Route config for found id else undefined\n     */\n    getRouteConfigById(routeId) {\n        return Object.values(this.config.routes).filter(r => r.id === routeId)[0]\n    }\n\n    /** Return true if the given route is external, false otherwise\n     * Used to correctly (re)apply script tags when cloning the template to the DOM (createRouteContent)\n     * @param {string} routeId Route ID to check\n     * @returns {boolean} True if the given route is external, false otherwise\n     */\n    isRouteExternal(routeId) {\n        const routeConfig = this.getRouteConfigById(routeId)\n        return !!(routeConfig && routeConfig.type === 'url')\n    }\n\n    /** Go to the default route if it has been specified */\n    defaultRoute() {\n        if (this.config.defaultRoute) this.doRoute(this.config.defaultRoute)\n    }\n\n    removeHash() {\n        history.pushState('', document.title, window.location.pathname + window.location.search)\n    }\n\n    /** Empty the current container and remove url hash - does not trigger a route change */\n    noRoute() {\n        this.removeHash()\n        this.routeContainerEl.replaceChildren()\n    }\n\n    /** Only keep anything after the # & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Return an array of route ids (to facilitate creation of menus)\n     * @param {boolean} returnHash If true, returns id's with leading `#` to apply to href attributes else returns the id\n     * @returns {string[]} Array of route id's or route url hashes\n     */\n    routeList(returnHash) {\n        return Object.values(this.config.routes).map((r) => returnHash === true ? `#${r.id}` : r.id)\n    }\n\n    /** Add new route definitions to the existing ones\n     * @param {routeDefinition|routeDefinition[]} routeConfig Single or array of route definitions to add\n     */\n    addRoutes(routeConfig) {\n        if (!Array.isArray(routeConfig)) routeConfig = [routeConfig]\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routeConfig).filter(r => r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded - Add new routes to config\n                this.config.routes.push(...routeConfig)\n                // Let everyone know it all finished\n                document.dispatchEvent(new CustomEvent('uibrouter:routes-added', { detail: routeConfig }))\n                if (uibuilder) uibuilder.set('uibrouter', 'routes added') // eslint-disable-line no-undef, promise/always-return\n            } )\n    }\n\n    // TODO\n    // deleteRoutes(aRoutes) {\n    //     // Delete all if no list provided\n    //     if (!aRoutes) aRoutes = this.config.routes\n    //     if (!Array.isArray(aRoutes)) aRoutes = [aRoutes]\n    //     console.log('to be deleted', this.config.routes.filter(r => aRoutes.includes(r.id)))\n    //     console.log('to be retained', this.config.routes.filter(r => !aRoutes.includes(r.id)))\n\n    //     // TODO actually remove the unwanted route templates\n    //     // TODO remove from the config: this.config.routes = this.config.routes.filter(r => !aRoutes.includes(r.id))\n\n    //     // ? Optional future upgrade - attempt to also remove any links to this route?\n    // }\n\n    // TODO\n    // deleteTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO delete\n    //     } )\n    // }\n\n    // TODO\n    // reloadTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO reload\n    //     } )\n    // }\n} // ---- End of class ----\n\n// For use in ESM loads\nexport { UibRouter }\nexport default UibRouter\n\n// Auto-assign for when the library is loaded via a script tag\nif (!window['UibRouter']) {\n    window['UibRouter'] = UibRouter\n} else {\n    console.warn('`UibRouter` already assigned to window. Have you tried to load it more than once?')\n}\n"],
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+  "sourcesContent": ["// @ts-nocheck\n/** A simple, vanilla JavaScript front-end router class\n * Included in node-red-contrib-uibuilder but is not dependent on it.\n * May be used in other contexts as desired.\n * \n * Copyright (c) 2023-2023 Julian Knight (Totally Information)\n * https://it.knightnet.org.uk\n *\n * Licensed under the Apache License, Version 2.0 (the 'License');\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an 'AS IS' BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/** ---------------------------------------------------------------------\n * TODO\n * Methods needed:\n *   Delete route\n *   Update/reload route\n *   shutdown - that removes all elements\n *   delete templates - unloads a list of (or all) templates\n *   reload templates - to facilitate updates of a list of (or all) templates\n * Additional options:\n *   unload templates after they are added to the route container. Only if hide=true. `unload: true`\n *   Maybe: options to auto-load js and css files with the same name as a template file.\n * ---------------------------------------------------------------------  */\n\n/** Type definitions\n * routeConfig\n * @typedef {object} routeDefinition Single route configuration\n * @property {string} id REQUIRED. Route ID\n * @property {string} src REQUIRED. CSS Selector for template tag routes, url for external routes\n * @property {\"url\"|undefined} [type] OPTIONAL. \"url\" for external routes\n * UibRouterConfig\n * @typedef {object} UibRouterConfig Configuration for the UiBRouter class instances\n * @property {routeDefinition[]} routes REQUIRED. Array of route definitions\n * @property {string} [defaultRoute] OPTIONAL. If set to a route id, that route will be automatically shown on load\n * @property {string} [routeContainer] OPTIONAL. CSS Selector for an HTML Element containing routes\n * @property {boolean} [hide] OPTIONAL. If TRUE, routes will be hidden/shown on change instead of removed/added\n * @property {boolean} [unload] OPTIONAL. If TRUE, route templates will be unloaded from DOM after access. Only useful with the `hide` option\n */\n\nclass UibRouter { // eslint-disable-line no-unused-vars\n    //#region --- Variables ---\n    /** Class version */\n    static version = '1.0.0'\n\n    /** Configuration settings @type {UibRouterConfig} */\n    config\n    /** Reference to the container DOM element - set in setup() @type {HTMLDivElement} */\n    routeContainerEl\n    /** The current route id after doRoute() has been called */\n    currentRouteId\n    /** The previous route id after doRoute() has been called */\n    previousRouteId\n\n    /** Internal only. Set to true when the _start() method has been called */\n    #startDone = false\n    //#endregion --- ----- ---\n\n    //#region --- Internal Methods ---\n    /** Class constructor\n     * @param {UibRouterConfig} routerConfig Configuration object\n     */\n    constructor(routerConfig) {\n        // Fetch is on desktop browsers since 2017 at latest. Not so much on mobile (Android!)\n        // May need a polyfill on mobile or old browsers.\n        if (!fetch) throw new Error('[uibrouter:constructor] UibRouter requires `fetch`. Please use a current browser or load a fetch polyfill.')\n\n        if (!routerConfig) throw new Error('[uibrouter:constructor] No config provided')\n        if (!routerConfig.routes) throw new Error('[uibrouter:constructor] No routes provided in routerConfig')\n        // Add a default route container uf needed\n        if (!routerConfig.routeContainer)routerConfig.routeContainer = '#uibroutecontainer'\n\n        // Save the config\n        this.config = routerConfig\n        // Create/access the route container element, sets this.routeContainerEl\n        this._setRouteContainer()\n\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routerConfig.routes).filter(r => r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded so we can start\n                this._start()\n            } )\n    }\n\n    /** Save a reference to, and create if necessary, the HTML element to hold routes */\n    _setRouteContainer() {\n        const body = document.getElementsByTagName('body')[0]\n        // Get reference to route container or create it\n        let routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        if (!routeContainerEl) {\n            // throw new Error(`Route container element with CSS selector '${routerConfig.routeContainer}' not found in HTML`)\n            const tempContainer = document.createElement('div')\n            tempContainer.setAttribute('id', this.config.routeContainer.replace('#', ''))\n            body.append(tempContainer)\n            routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        }\n    }\n\n    /** Load fetched external elements to templates tags under the head tag\n     * @param {HTMLElement[]} loadedElements Array of loaded external elements to add as templates to the head tag\n     */\n    _appendExternalTemplates(loadedElements) {\n        const head = document.getElementsByTagName('head')[0]\n        // Append the loaded content to the main container\n        loadedElements.forEach(element => {\n            if (Array.isArray(element)) {\n                console.error(...element)\n            } else {\n                head.append(element)\n            }\n        })\n    }\n\n    /** Called once all external templates have been loaded */\n    _start() {\n        if (this.#startDone === true) return // Don't run this again\n\n        // Listen for url hash changes and process route change\n        window.addEventListener('hashchange', (event) => this._hashChange(event) )\n        // Go to default route if no route in url and if a default is defined or ensure current route is shown\n        this.doRoute()\n        // Events on fully loaded ...\n        document.dispatchEvent(new CustomEvent('uibrouter:loaded'))\n        if (uibuilder) uibuilder.set('uibrouter', 'loaded') // eslint-disable-line no-undef\n\n        this.#startDone = true // Don't run this again\n    }\n\n    /** Called when the URL Hash changes\n     * @param {HashChangeEvent} event URL Hash change event object\n     */\n    _hashChange(event) {\n        // console.log(`[uibrouter] hashchange: ${this.keepHashFromUrl(event.oldURL)} => ${this.keepHashFromUrl(event.newURL)}` )\n        this.doRoute(event)\n    }\n\n    /** Create DOM route content from a route template (internal or external)\n     * Route templates have to be a `<template>` tag with an ID that matches the route id.\n     * @param {string} routeId ID of the route definition to use to create the content\n     * @returns {boolean} True if the route content was created successfully, false otherwise\n     */\n    _createRouteContent(routeId) {\n        const rContent = document.querySelector(`#${routeId}`)\n        if (!rContent) {\n            console.error(`[uibrouter:createRouteContent] No route template found for route selector '#${routeId}'. Does the link url match a defined route id?`)\n            return false\n        }\n        const docFrag = rContent.content.cloneNode(true)\n        // Have to re-apply the scripts to make them run - only for external templates\n        if (this.isRouteExternal(routeId)) this._applyScripts(docFrag)\n        // Create the route wrapper div with data-route attrib\n        const tempContainer = document.createElement('div')\n        tempContainer.dataset.route = routeId\n        tempContainer.append(docFrag)\n        // And finally try to append to the container\n        try {\n            this.routeContainerEl.append(tempContainer)\n        } catch (e) {\n            console.error(`[uibrouter:createRouteContent] Failed to apply route id '${routeId}'. \\n ${e.message}`)\n            return false\n        }\n        return true\n    }\n\n    /** Loads an external HTML file into a `<template>` tag, adding the router id as the template id.\n     *  or returns an error array\n     * @param {routeDefinition} routeDefinition Configuration for a single route\n     * @returns {Promise<HTMLTemplateElement[]|[string,string,number,string]>} A promise that fulfills to an HTMLTemplateElement or an array containing error information\n     */\n    _loadExternal(routeDefinition) {\n        // const id = singleConfig.src.split('/').pop().replace('.html','')\n        const id = routeDefinition.id\n        // @ts-ignore\n        return fetch(routeDefinition.src)\n            .then(response => {\n                // Fetch failed?\n                if (response.ok === false) return [routeDefinition.id, routeDefinition.src, response.status, response.statusText]\n                return response.text()\n            })\n            .then((/** @type {string} */ htmlText) => {\n                if (Array.isArray(htmlText)) return htmlText // if the fetch failed\n\n                // Check to see if template already exists, if so, remove it\n                try {\n                    const chkTemplate = document.querySelector(`#${id}`)\n                    if (chkTemplate) chkTemplate.remove()\n                } catch (e) {}\n\n                const tempContainer = document.createElement('template')\n                tempContainer.innerHTML = htmlText\n                tempContainer.setAttribute('id', id)\n                return tempContainer\n            })\n            .catch(error => {\n                console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${routeDefinition.src}:`, error)\n            })\n    }\n\n    /** Remove/re-apply scripts in a container Element so that they are executed.\n     * @param {HTMLElement} tempContainer HTML Element of container to process\n     */\n    _applyScripts(tempContainer) {\n        const scripts = tempContainer.querySelectorAll('script')\n        scripts.forEach( scr => {\n            const newScript = document.createElement('script')\n            newScript.textContent = scr.innerText\n            tempContainer.append(newScript)\n            scr.remove() // remove the origin\n        })\n    }\n    //#endregion --- ----- --\n\n    /** Process a routing request\n     * @param {PointerEvent|MouseEvent|HashChangeEvent|TouchEvent|string} routeSource Either string containing route id or DOM Event object either click/touch on element containing `href=\"#routeid\"` or Hash URL change event\n     */\n    doRoute(routeSource) {\n        const container = this.routeContainerEl\n        if (!container) throw new Error('[uibrouter:doRoute] Cannot route, has router.setup() been called yet?')\n\n        // Remove all the url and query param text and any leading # - returns '' if no current hash\n        const currentHash = this.keepHashFromUrl(window.location.hash)\n\n        // If no route source provided, take the current hash (which might be '' and that will trigger the default route if defined)\n        if (!routeSource) routeSource = currentHash\n\n        let newRouteId, oldRouteId\n\n        // Define new and old routes depending on different call types\n        if (typeof routeSource === 'string') { // Manually provided route id\n            // console.log(`[uibrouter:doRoute] manual: ${currentHash} => ${this.keepHashFromUrl(routeSource)}. Current: ${currentHash}` )\n            newRouteId = this.keepHashFromUrl(routeSource)\n            oldRouteId = currentHash\n            // If no hash & config has default, set the default as new\n            if (newRouteId === '' && this.config.defaultRoute) newRouteId = this.config.defaultRoute\n            // If the new route id not the same as the current one in the url hash, just change the current hash & exit\n            if (newRouteId !== currentHash ) {\n                window.location.hash = `#${newRouteId}`\n                return\n            }\n        } else if (routeSource.type === 'hashchange') { // A URL Hash change event\n            // console.log(`[uibrouter:doRoute] hashchange: ${this.keepHashFromUrl(routeSource.oldURL)} => ${this.keepHashFromUrl(routeSource.newURL)}. Current: ${currentHash}` )\n            const newUrl = routeSource.newURL\n            // Check if URL actually contains a #\n            if (newUrl.includes('#')) {\n                oldRouteId = this.keepHashFromUrl(routeSource.oldURL)\n                newRouteId = this.keepHashFromUrl(newUrl) // Only keep anything after the # & ignoring query params\n            } else return\n        } else { // A mouse click/touch event on a dom element with an href attribute\n            oldRouteId = currentHash\n            // Try to get the route name from the URL hash\n            try {\n                newRouteId = this.keepHashFromUrl(routeSource.target.attributes.href.value) // Only keep anything after the # & ignoring query params\n            } catch (e) {\n                throw new Error('[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute')\n            }\n        }\n\n        let routeShown = false\n\n        // If no defined valid route, undo and throw error\n        if (!newRouteId || !this.routeList().includes(newRouteId)) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            throw new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${newRouteId}'`)\n        }\n\n        // Show the new container (replace or show)\n        if (this.config.hide) {\n            // config.hide = true so hide previous contents\n            if (oldRouteId) {\n                /** @type {HTMLElement|null} */\n                const oldContent = document.querySelector(`div[data-route=\"${oldRouteId}\"]`)\n                if (oldContent) oldContent.style.display = 'none'\n            }\n            /** and unhide new route if possible @type {HTMLElement|null} */\n            const content = document.querySelector(`div[data-route=\"${newRouteId}\"]`)\n            if (content) {\n                content.style.removeProperty('display')\n                routeShown = true\n            } else {\n                // else create new content from template\n                routeShown = this._createRouteContent(newRouteId)\n            }\n        } else {\n            // config.hide != true so remove previous contents\n            container.replaceChildren()\n            // Create new content from template\n            routeShown = this._createRouteContent(newRouteId)\n        }\n\n        // console.log({ newRouteId, oldRouteId, currentHash, routeShown })\n\n        // Roll back the route change if the new route cannot be shown\n        if (routeShown === false) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            return\n        }\n\n        // Retain current and previous route id's\n        this.currentRouteId = newRouteId\n        this.previousRouteId = oldRouteId\n\n        // Record the current route on the route container\n        container.dataset.currentRoute = newRouteId\n\n        // Events on route changed ...\n        document.dispatchEvent(new CustomEvent('uibrouter:route-changed', { detail: { newRouteId, oldRouteId } }))\n        if (uibuilder) uibuilder.set('uibrouter', 'route changed') // eslint-disable-line no-undef\n    }\n\n    /** Return a route config given a route id (returns undefined if route not found)\n     * @param {string} routeId Route ID to search for\n     * @returns {routeDefinition|undefined} Route config for found id else undefined\n     */\n    getRouteConfigById(routeId) {\n        return Object.values(this.config.routes).filter(r => r.id === routeId)[0]\n    }\n\n    /** Return true if the given route is external, false otherwise\n     * Used to correctly (re)apply script tags when cloning the template to the DOM (createRouteContent)\n     * @param {string} routeId Route ID to check\n     * @returns {boolean} True if the given route is external, false otherwise\n     */\n    isRouteExternal(routeId) {\n        const routeConfig = this.getRouteConfigById(routeId)\n        return !!(routeConfig && routeConfig.type === 'url')\n    }\n\n    /** Go to the default route if it has been specified */\n    defaultRoute() {\n        if (this.config.defaultRoute) this.doRoute(this.config.defaultRoute)\n    }\n\n    removeHash() {\n        history.pushState('', document.title, window.location.pathname + window.location.search)\n    }\n\n    /** Empty the current container and remove url hash - does not trigger a route change */\n    noRoute() {\n        this.removeHash()\n        this.routeContainerEl.replaceChildren()\n    }\n\n    /** Only keep anything after the # & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Return an array of route ids (to facilitate creation of menus)\n     * @param {boolean} returnHash If true, returns id's with leading `#` to apply to href attributes else returns the id\n     * @returns {string[]} Array of route id's or route url hashes\n     */\n    routeList(returnHash) {\n        return Object.values(this.config.routes).map((r) => returnHash === true ? `#${r.id}` : r.id)\n    }\n\n    /** Add new route definitions to the existing ones\n     * @param {routeDefinition|routeDefinition[]} routeConfig Single or array of route definitions to add\n     */\n    addRoutes(routeConfig) {\n        if (!Array.isArray(routeConfig)) routeConfig = [routeConfig]\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routeConfig).filter(r => r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded - Add new routes to config\n                this.config.routes.push(...routeConfig)\n                // Let everyone know it all finished\n                document.dispatchEvent(new CustomEvent('uibrouter:routes-added', { detail: routeConfig }))\n                if (uibuilder) uibuilder.set('uibrouter', 'routes added') // eslint-disable-line no-undef, promise/always-return\n            } )\n    }\n\n    // TODO\n    // deleteRoutes(aRoutes) {\n    //     // Delete all if no list provided\n    //     if (!aRoutes) aRoutes = this.config.routes\n    //     if (!Array.isArray(aRoutes)) aRoutes = [aRoutes]\n    //     console.log('to be deleted', this.config.routes.filter(r => aRoutes.includes(r.id)))\n    //     console.log('to be retained', this.config.routes.filter(r => !aRoutes.includes(r.id)))\n\n    //     // TODO actually remove the unwanted route templates\n    //     // TODO remove from the config: this.config.routes = this.config.routes.filter(r => !aRoutes.includes(r.id))\n\n    //     // ? Optional future upgrade - attempt to also remove any links to this route?\n    // }\n\n    // TODO\n    // deleteTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO delete\n    //     } )\n    // }\n\n    // TODO\n    // reloadTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO reload\n    //     } )\n    // }\n} // ---- End of class ----\n\n// For use in ESM loads\nexport { UibRouter }\nexport default UibRouter\n\n// Auto-assign for when the library is loaded via a script tag\nif (!window['UibRouter']) {\n    window['UibRouter'] = UibRouter\n} else {\n    console.warn('`UibRouter` already assigned to window. Have you tried to load it more than once?')\n}\n"],
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   "names": ["_startDone", "UibRouter", "routerConfig", "__publicField", "__privateAdd", "r", "body", "routeContainerEl", "tempContainer", "loadedElements", "head", "element", "__privateGet", "event", "__privateSet", "routeId", "rContent", "docFrag", "e", "routeDefinition", "id", "response", "htmlText", "chkTemplate", "error", "scr", "newScript", "routeSource", "container", "currentHash", "newRouteId", "oldRouteId", "newUrl", "routeShown", "oldContent", "content", "routeConfig", "url", "returnHash", "uibrouter_default", "UibRouter"]
 }
diff --git a/front-end/utils/uibrouter.iife.js b/front-end/utils/uibrouter.iife.js
index bbc6b38b..f61b4c87 100644
--- a/front-end/utils/uibrouter.iife.js
+++ b/front-end/utils/uibrouter.iife.js
@@ -158,11 +158,10 @@
     _applyScripts(tempContainer) {
       const scripts = tempContainer.querySelectorAll("script");
       scripts.forEach((scr) => {
-        if (scr.parentElement)
-          scr.parentElement.removeChild(scr);
         const newScript = document.createElement("script");
         newScript.textContent = scr.innerText;
         tempContainer.append(newScript);
+        scr.remove();
       });
     }
     //#endregion --- ----- --
diff --git a/front-end/utils/uibrouter.iife.min.js b/front-end/utils/uibrouter.iife.min.js
index a1a661c8..37a8b039 100644
--- a/front-end/utils/uibrouter.iife.min.js
+++ b/front-end/utils/uibrouter.iife.min.js
@@ -1,3 +1,3 @@
-(()=>{var E=Object.defineProperty;var b=(n,e,t)=>e in n?E(n,e,{enumerable:!0,configurable:!0,writable:!0,value:t}):n[e]=t;var u=(n,e,t)=>(b(n,typeof e!="symbol"?e+"":e,t),t),h=(n,e,t)=>{if(!e.has(n))throw TypeError("Cannot "+t)};var f=(n,e,t)=>(h(n,e,"read from private field"),t?t.call(n):e.get(n)),p=(n,e,t)=>{if(e.has(n))throw TypeError("Cannot add the same private member more than once");e instanceof WeakSet?e.add(n):e.set(n,t)},m=(n,e,t,r)=>(h(n,e,"write to private field"),r?r.call(n,t):e.set(n,t),t);var d,s=class{constructor(e){u(this,"config");u(this,"routeContainerEl");u(this,"currentRouteId");u(this,"previousRouteId");p(this,d,!1);if(!fetch)throw new Error("[uibrouter:constructor] UibRouter requires `fetch`. Please use a current browser or load a fetch polyfill.");if(!e)throw new Error("[uibrouter:constructor] No config provided");if(!e.routes)throw new Error("[uibrouter:constructor] No routes provided in routerConfig");e.routeContainer||(e.routeContainer="#uibroutecontainer"),this.config=e,this._setRouteContainer(),Promise.all(Object.values(e.routes).filter(t=>t.type==="url").map(this._loadExternal)).then(this._appendExternalTemplates).then(()=>{this._start()})}_setRouteContainer(){let e=document.getElementsByTagName("body")[0],t=this.routeContainerEl=document.querySelector(this.config.routeContainer);if(!t){let r=document.createElement("div");r.setAttribute("id",this.config.routeContainer.replace("#","")),e.append(r),t=this.routeContainerEl=document.querySelector(this.config.routeContainer)}}_appendExternalTemplates(e){let t=document.getElementsByTagName("head")[0];e.forEach(r=>{Array.isArray(r)?console.error(...r):t.append(r)})}_start(){f(this,d)!==!0&&(window.addEventListener("hashchange",e=>this._hashChange(e)),this.doRoute(),document.dispatchEvent(new CustomEvent("uibrouter:loaded")),uibuilder&&uibuilder.set("uibrouter","loaded"),m(this,d,!0))}_hashChange(e){this.doRoute(e)}_createRouteContent(e){let t=document.querySelector(`#${e}`);if(!t)return console.error(`[uibrouter:createRouteContent] No route template found for route selector '#${e}'. Does the link url match a defined route id?`),!1;let r=t.content.cloneNode(!0);this.isRouteExternal(e)&&this._applyScripts(r);let o=document.createElement("div");o.dataset.route=e,o.append(r);try{this.routeContainerEl.append(o)}catch(i){return console.error(`[uibrouter:createRouteContent] Failed to apply route id '${e}'. 
- ${i.message}`),!1}return!0}_loadExternal(e){let t=e.id;return fetch(e.src).then(r=>r.ok===!1?[e.id,e.src,r.status,r.statusText]:r.text()).then(r=>{if(Array.isArray(r))return r;try{let i=document.querySelector(`#${t}`);i&&i.remove()}catch{}let o=document.createElement("template");return o.innerHTML=r,o.setAttribute("id",t),o}).catch(r=>{console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${e.src}:`,r)})}_applyScripts(e){e.querySelectorAll("script").forEach(r=>{r.parentElement&&r.parentElement.removeChild(r);let o=document.createElement("script");o.textContent=r.innerText,e.append(o)})}doRoute(e){let t=this.routeContainerEl;if(!t)throw new Error("[uibrouter:doRoute] Cannot route, has router.setup() been called yet?");let r=this.keepHashFromUrl(window.location.hash);e||(e=r);let o,i;if(typeof e=="string"){if(o=this.keepHashFromUrl(e),i=r,o===""&&this.config.defaultRoute&&(o=this.config.defaultRoute),o!==r){window.location.hash=`#${o}`;return}}else if(e.type==="hashchange"){let a=e.newURL;if(a.includes("#"))i=this.keepHashFromUrl(e.oldURL),o=this.keepHashFromUrl(a);else return}else{i=r;try{o=this.keepHashFromUrl(e.target.attributes.href.value)}catch{throw new Error("[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute")}}let l=!1;if(!o||!this.routeList().includes(o))throw document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:i}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=i?`#${i}`:"",new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${o}'`);if(this.config.hide){if(i){let c=document.querySelector(`div[data-route="${i}"]`);c&&(c.style.display="none")}let a=document.querySelector(`div[data-route="${o}"]`);a?(a.style.removeProperty("display"),l=!0):l=this._createRouteContent(o)}else t.replaceChildren(),l=this._createRouteContent(o);if(l===!1){document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:i}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=i?`#${i}`:"";return}this.currentRouteId=o,this.previousRouteId=i,t.dataset.currentRoute=o,document.dispatchEvent(new CustomEvent("uibrouter:route-changed",{detail:{newRouteId:o,oldRouteId:i}})),uibuilder&&uibuilder.set("uibrouter","route changed")}getRouteConfigById(e){return Object.values(this.config.routes).filter(t=>t.id===e)[0]}isRouteExternal(e){let t=this.getRouteConfigById(e);return!!(t&&t.type==="url")}defaultRoute(){this.config.defaultRoute&&this.doRoute(this.config.defaultRoute)}removeHash(){history.pushState("",document.title,window.location.pathname+window.location.search)}noRoute(){this.removeHash(),this.routeContainerEl.replaceChildren()}keepHashFromUrl(e){return e?e.replace(/^.*#(.*)/,"$1").replace(/\?.*$/,""):""}routeList(e){return Object.values(this.config.routes).map(t=>e===!0?`#${t.id}`:t.id)}addRoutes(e){Array.isArray(e)||(e=[e]),Promise.all(Object.values(e).filter(t=>t.type==="url").map(this._loadExternal)).then(this._appendExternalTemplates).then(()=>{this.config.routes.push(...e),document.dispatchEvent(new CustomEvent("uibrouter:routes-added",{detail:e})),uibuilder&&uibuilder.set("uibrouter","routes added")})}};d=new WeakMap,u(s,"version","1.0.0");var y=s;window.UibRouter?console.warn("`UibRouter` already assigned to window. Have you tried to load it more than once?"):window.UibRouter=s;})();
+(()=>{var b=Object.defineProperty;var w=(n,e,t)=>e in n?b(n,e,{enumerable:!0,configurable:!0,writable:!0,value:t}):n[e]=t;var u=(n,e,t)=>(w(n,typeof e!="symbol"?e+"":e,t),t),h=(n,e,t)=>{if(!e.has(n))throw TypeError("Cannot "+t)};var f=(n,e,t)=>(h(n,e,"read from private field"),t?t.call(n):e.get(n)),p=(n,e,t)=>{if(e.has(n))throw TypeError("Cannot add the same private member more than once");e instanceof WeakSet?e.add(n):e.set(n,t)},m=(n,e,t,r)=>(h(n,e,"write to private field"),r?r.call(n,t):e.set(n,t),t);var d,s=class{constructor(e){u(this,"config");u(this,"routeContainerEl");u(this,"currentRouteId");u(this,"previousRouteId");p(this,d,!1);if(!fetch)throw new Error("[uibrouter:constructor] UibRouter requires `fetch`. Please use a current browser or load a fetch polyfill.");if(!e)throw new Error("[uibrouter:constructor] No config provided");if(!e.routes)throw new Error("[uibrouter:constructor] No routes provided in routerConfig");e.routeContainer||(e.routeContainer="#uibroutecontainer"),this.config=e,this._setRouteContainer(),Promise.all(Object.values(e.routes).filter(t=>t.type==="url").map(this._loadExternal)).then(this._appendExternalTemplates).then(()=>{this._start()})}_setRouteContainer(){let e=document.getElementsByTagName("body")[0],t=this.routeContainerEl=document.querySelector(this.config.routeContainer);if(!t){let r=document.createElement("div");r.setAttribute("id",this.config.routeContainer.replace("#","")),e.append(r),t=this.routeContainerEl=document.querySelector(this.config.routeContainer)}}_appendExternalTemplates(e){let t=document.getElementsByTagName("head")[0];e.forEach(r=>{Array.isArray(r)?console.error(...r):t.append(r)})}_start(){f(this,d)!==!0&&(window.addEventListener("hashchange",e=>this._hashChange(e)),this.doRoute(),document.dispatchEvent(new CustomEvent("uibrouter:loaded")),uibuilder&&uibuilder.set("uibrouter","loaded"),m(this,d,!0))}_hashChange(e){this.doRoute(e)}_createRouteContent(e){let t=document.querySelector(`#${e}`);if(!t)return console.error(`[uibrouter:createRouteContent] No route template found for route selector '#${e}'. Does the link url match a defined route id?`),!1;let r=t.content.cloneNode(!0);this.isRouteExternal(e)&&this._applyScripts(r);let o=document.createElement("div");o.dataset.route=e,o.append(r);try{this.routeContainerEl.append(o)}catch(i){return console.error(`[uibrouter:createRouteContent] Failed to apply route id '${e}'. 
+ ${i.message}`),!1}return!0}_loadExternal(e){let t=e.id;return fetch(e.src).then(r=>r.ok===!1?[e.id,e.src,r.status,r.statusText]:r.text()).then(r=>{if(Array.isArray(r))return r;try{let i=document.querySelector(`#${t}`);i&&i.remove()}catch{}let o=document.createElement("template");return o.innerHTML=r,o.setAttribute("id",t),o}).catch(r=>{console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${e.src}:`,r)})}_applyScripts(e){e.querySelectorAll("script").forEach(r=>{let o=document.createElement("script");o.textContent=r.innerText,e.append(o),r.remove()})}doRoute(e){let t=this.routeContainerEl;if(!t)throw new Error("[uibrouter:doRoute] Cannot route, has router.setup() been called yet?");let r=this.keepHashFromUrl(window.location.hash);e||(e=r);let o,i;if(typeof e=="string"){if(o=this.keepHashFromUrl(e),i=r,o===""&&this.config.defaultRoute&&(o=this.config.defaultRoute),o!==r){window.location.hash=`#${o}`;return}}else if(e.type==="hashchange"){let a=e.newURL;if(a.includes("#"))i=this.keepHashFromUrl(e.oldURL),o=this.keepHashFromUrl(a);else return}else{i=r;try{o=this.keepHashFromUrl(e.target.attributes.href.value)}catch{throw new Error("[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute")}}let l=!1;if(!o||!this.routeList().includes(o))throw document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:i}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=i?`#${i}`:"",new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${o}'`);if(this.config.hide){if(i){let c=document.querySelector(`div[data-route="${i}"]`);c&&(c.style.display="none")}let a=document.querySelector(`div[data-route="${o}"]`);a?(a.style.removeProperty("display"),l=!0):l=this._createRouteContent(o)}else t.replaceChildren(),l=this._createRouteContent(o);if(l===!1){document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:i}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=i?`#${i}`:"";return}this.currentRouteId=o,this.previousRouteId=i,t.dataset.currentRoute=o,document.dispatchEvent(new CustomEvent("uibrouter:route-changed",{detail:{newRouteId:o,oldRouteId:i}})),uibuilder&&uibuilder.set("uibrouter","route changed")}getRouteConfigById(e){return Object.values(this.config.routes).filter(t=>t.id===e)[0]}isRouteExternal(e){let t=this.getRouteConfigById(e);return!!(t&&t.type==="url")}defaultRoute(){this.config.defaultRoute&&this.doRoute(this.config.defaultRoute)}removeHash(){history.pushState("",document.title,window.location.pathname+window.location.search)}noRoute(){this.removeHash(),this.routeContainerEl.replaceChildren()}keepHashFromUrl(e){return e?e.replace(/^.*#(.*)/,"$1").replace(/\?.*$/,""):""}routeList(e){return Object.values(this.config.routes).map(t=>e===!0?`#${t.id}`:t.id)}addRoutes(e){Array.isArray(e)||(e=[e]),Promise.all(Object.values(e).filter(t=>t.type==="url").map(this._loadExternal)).then(this._appendExternalTemplates).then(()=>{this.config.routes.push(...e),document.dispatchEvent(new CustomEvent("uibrouter:routes-added",{detail:e})),uibuilder&&uibuilder.set("uibrouter","routes added")})}};d=new WeakMap,u(s,"version","1.0.0");var y=s;window.UibRouter?console.warn("`UibRouter` already assigned to window. Have you tried to load it more than once?"):window.UibRouter=s;})();
 //# sourceMappingURL=uibrouter.iife.min.js.map
diff --git a/front-end/utils/uibrouter.iife.min.js.map b/front-end/utils/uibrouter.iife.min.js.map
index c711add5..3ee8e4a1 100644
--- a/front-end/utils/uibrouter.iife.min.js.map
+++ b/front-end/utils/uibrouter.iife.min.js.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
   "sources": ["src/front-end-module/uibrouter.js"],
-  "sourcesContent": ["// @ts-nocheck\n/** A simple, vanilla JavaScript front-end router class\n * Included in node-red-contrib-uibuilder but is not dependent on it.\n * May be used in other contexts as desired.\n * \n * Copyright (c) 2023-2023 Julian Knight (Totally Information)\n * https://it.knightnet.org.uk\n *\n * Licensed under the Apache License, Version 2.0 (the 'License');\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an 'AS IS' BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/** ---------------------------------------------------------------------\n * TODO\n * Methods needed:\n *   Delete route\n *   Update/reload route\n *   shutdown - that removes all elements\n *   delete templates - unloads a list of (or all) templates\n *   reload templates - to facilitate updates of a list of (or all) templates\n * Additional options:\n *   unload templates after they are added to the route container. Only if hide=true. `unload: true`\n *   Maybe: options to auto-load js and css files with the same name as a template file.\n * ---------------------------------------------------------------------  */\n\n/** Type definitions\n * routeConfig\n * @typedef {object} routeDefinition Single route configuration\n * @property {string} id REQUIRED. Route ID\n * @property {string} src REQUIRED. CSS Selector for template tag routes, url for external routes\n * @property {\"url\"|undefined} [type] OPTIONAL. \"url\" for external routes\n * UibRouterConfig\n * @typedef {object} UibRouterConfig Configuration for the UiBRouter class instances\n * @property {routeDefinition[]} routes REQUIRED. Array of route definitions\n * @property {string} [defaultRoute] OPTIONAL. If set to a route id, that route will be automatically shown on load\n * @property {string} [routeContainer] OPTIONAL. CSS Selector for an HTML Element containing routes\n * @property {boolean} [hide] OPTIONAL. If TRUE, routes will be hidden/shown on change instead of removed/added\n * @property {boolean} [unload] OPTIONAL. If TRUE, route templates will be unloaded from DOM after access. Only useful with the `hide` option\n */\n\nclass UibRouter { // eslint-disable-line no-unused-vars\n    //#region --- Variables ---\n    /** Class version */\n    static version = '1.0.0'\n\n    /** Configuration settings @type {UibRouterConfig} */\n    config\n    /** Reference to the container DOM element - set in setup() @type {HTMLDivElement} */\n    routeContainerEl\n    /** The current route id after doRoute() has been called */\n    currentRouteId\n    /** The previous route id after doRoute() has been called */\n    previousRouteId\n\n    /** Internal only. Set to true when the _start() method has been called */\n    #startDone = false\n    //#endregion --- ----- ---\n\n    //#region --- Internal Methods ---\n    /** Class constructor\n     * @param {UibRouterConfig} routerConfig Configuration object\n     */\n    constructor(routerConfig) {\n        // Fetch is on desktop browsers since 2017 at latest. Not so much on mobile (Android!)\n        // May need a polyfill on mobile or old browsers.\n        if (!fetch) throw new Error('[uibrouter:constructor] UibRouter requires `fetch`. Please use a current browser or load a fetch polyfill.')\n\n        if (!routerConfig) throw new Error('[uibrouter:constructor] No config provided')\n        if (!routerConfig.routes) throw new Error('[uibrouter:constructor] No routes provided in routerConfig')\n        // Add a default route container uf needed\n        if (!routerConfig.routeContainer)routerConfig.routeContainer = '#uibroutecontainer'\n\n        // Save the config\n        this.config = routerConfig\n        // Create/access the route container element, sets this.routeContainerEl\n        this._setRouteContainer()\n\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routerConfig.routes).filter(r => r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded so we can start\n                this._start()\n            } )\n    }\n\n    /** Save a reference to, and create if necessary, the HTML element to hold routes */\n    _setRouteContainer() {\n        const body = document.getElementsByTagName('body')[0]\n        // Get reference to route container or create it\n        let routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        if (!routeContainerEl) {\n            // throw new Error(`Route container element with CSS selector '${routerConfig.routeContainer}' not found in HTML`)\n            const tempContainer = document.createElement('div')\n            tempContainer.setAttribute('id', this.config.routeContainer.replace('#', ''))\n            body.append(tempContainer)\n            routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        }\n    }\n\n    /** Load fetched external elements to templates tags under the head tag\n     * @param {HTMLElement[]} loadedElements Array of loaded external elements to add as templates to the head tag\n     */\n    _appendExternalTemplates(loadedElements) {\n        const head = document.getElementsByTagName('head')[0]\n        // Append the loaded content to the main container\n        loadedElements.forEach(element => {\n            if (Array.isArray(element)) {\n                console.error(...element)\n            } else {\n                head.append(element)\n            }\n        })\n    }\n\n    /** Called once all external templates have been loaded */\n    _start() {\n        if (this.#startDone === true) return // Don't run this again\n\n        // Listen for url hash changes and process route change\n        window.addEventListener('hashchange', (event) => this._hashChange(event) )\n        // Go to default route if no route in url and if a default is defined or ensure current route is shown\n        this.doRoute()\n        // Events on fully loaded ...\n        document.dispatchEvent(new CustomEvent('uibrouter:loaded'))\n        if (uibuilder) uibuilder.set('uibrouter', 'loaded') // eslint-disable-line no-undef\n\n        this.#startDone = true // Don't run this again\n    }\n\n    /** Called when the URL Hash changes\n     * @param {HashChangeEvent} event URL Hash change event object\n     */\n    _hashChange(event) {\n        // console.log(`[uibrouter] hashchange: ${this.keepHashFromUrl(event.oldURL)} => ${this.keepHashFromUrl(event.newURL)}` )\n        this.doRoute(event)\n    }\n\n    /** Create DOM route content from a route template (internal or external)\n     * Route templates have to be a `<template>` tag with an ID that matches the route id.\n     * @param {string} routeId ID of the route definition to use to create the content\n     * @returns {boolean} True if the route content was created successfully, false otherwise\n     */\n    _createRouteContent(routeId) {\n        const rContent = document.querySelector(`#${routeId}`)\n        if (!rContent) {\n            console.error(`[uibrouter:createRouteContent] No route template found for route selector '#${routeId}'. Does the link url match a defined route id?`)\n            return false\n        }\n        const docFrag = rContent.content.cloneNode(true)\n        // Have to re-apply the scripts to make them run - only for external templates\n        if (this.isRouteExternal(routeId)) this._applyScripts(docFrag)\n        // Create the route wrapper div with data-route attrib\n        const tempContainer = document.createElement('div')\n        tempContainer.dataset.route = routeId\n        tempContainer.append(docFrag)\n        // And finally try to append to the container\n        try {\n            this.routeContainerEl.append(tempContainer)\n        } catch (e) {\n            console.error(`[uibrouter:createRouteContent] Failed to apply route id '${routeId}'. \\n ${e.message}`)\n            return false\n        }\n        return true\n    }\n\n    /** Loads an external HTML file into a `<template>` tag, adding the router id as the template id.\n     *  or returns an error array\n     * @param {routeDefinition} routeDefinition Configuration for a single route\n     * @returns {Promise<HTMLTemplateElement[]|[string,string,number,string]>} A promise that fulfills to an HTMLTemplateElement or an array containing error information\n     */\n    _loadExternal(routeDefinition) {\n        // const id = singleConfig.src.split('/').pop().replace('.html','')\n        const id = routeDefinition.id\n        // @ts-ignore\n        return fetch(routeDefinition.src)\n            .then(response => {\n                // Fetch failed?\n                if (response.ok === false) return [routeDefinition.id, routeDefinition.src, response.status, response.statusText]\n                return response.text()\n            })\n            .then((/** @type {string} */ htmlText) => {\n                if (Array.isArray(htmlText)) return htmlText // if the fetch failed\n\n                // Check to see if template already exists, if so, remove it\n                try {\n                    const chkTemplate = document.querySelector(`#${id}`)\n                    if (chkTemplate) chkTemplate.remove()\n                } catch (e) {}\n\n                const tempContainer = document.createElement('template')\n                tempContainer.innerHTML = htmlText\n                tempContainer.setAttribute('id', id)\n                return tempContainer\n            })\n            .catch(error => {\n                console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${routeDefinition.src}:`, error)\n            })\n    }\n\n    /** Remove/re-apply scripts in a container Element so that they are executed.\n     * @param {HTMLElement} tempContainer HTML Element of container to process\n     */\n    _applyScripts(tempContainer) {\n        const scripts = tempContainer.querySelectorAll('script')\n        scripts.forEach( scr => {\n            if (scr.parentElement) scr.parentElement.removeChild(scr)\n            const newScript = document.createElement('script')\n            newScript.textContent = scr.innerText\n            tempContainer.append(newScript)\n        })\n    }\n    //#endregion --- ----- --\n\n    /** Process a routing request\n     * @param {PointerEvent|MouseEvent|HashChangeEvent|TouchEvent|string} routeSource Either string containing route id or DOM Event object either click/touch on element containing `href=\"#routeid\"` or Hash URL change event\n     */\n    doRoute(routeSource) {\n        const container = this.routeContainerEl\n        if (!container) throw new Error('[uibrouter:doRoute] Cannot route, has router.setup() been called yet?')\n\n        // Remove all the url and query param text and any leading # - returns '' if no current hash\n        const currentHash = this.keepHashFromUrl(window.location.hash)\n\n        // If no route source provided, take the current hash (which might be '' and that will trigger the default route if defined)\n        if (!routeSource) routeSource = currentHash\n\n        let newRouteId, oldRouteId\n\n        // Define new and old routes depending on different call types\n        if (typeof routeSource === 'string') { // Manually provided route id\n            // console.log(`[uibrouter:doRoute] manual: ${currentHash} => ${this.keepHashFromUrl(routeSource)}. Current: ${currentHash}` )\n            newRouteId = this.keepHashFromUrl(routeSource)\n            oldRouteId = currentHash\n            // If no hash & config has default, set the default as new\n            if (newRouteId === '' && this.config.defaultRoute) newRouteId = this.config.defaultRoute\n            // If the new route id not the same as the current one in the url hash, just change the current hash & exit\n            if (newRouteId !== currentHash ) {\n                window.location.hash = `#${newRouteId}`\n                return\n            }\n        } else if (routeSource.type === 'hashchange') { // A URL Hash change event\n            // console.log(`[uibrouter:doRoute] hashchange: ${this.keepHashFromUrl(routeSource.oldURL)} => ${this.keepHashFromUrl(routeSource.newURL)}. Current: ${currentHash}` )\n            const newUrl = routeSource.newURL\n            // Check if URL actually contains a #\n            if (newUrl.includes('#')) {\n                oldRouteId = this.keepHashFromUrl(routeSource.oldURL)\n                newRouteId = this.keepHashFromUrl(newUrl) // Only keep anything after the # & ignoring query params\n            } else return\n        } else { // A mouse click/touch event on a dom element with an href attribute\n            oldRouteId = currentHash\n            // Try to get the route name from the URL hash\n            try {\n                newRouteId = this.keepHashFromUrl(routeSource.target.attributes.href.value) // Only keep anything after the # & ignoring query params\n            } catch (e) {\n                throw new Error('[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute')\n            }\n        }\n\n        let routeShown = false\n\n        // If no defined valid route, undo and throw error\n        if (!newRouteId || !this.routeList().includes(newRouteId)) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            throw new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${newRouteId}'`)\n        }\n\n        // Show the new container (replace or show)\n        if (this.config.hide) {\n            // config.hide = true so hide previous contents\n            if (oldRouteId) {\n                /** @type {HTMLElement|null} */\n                const oldContent = document.querySelector(`div[data-route=\"${oldRouteId}\"]`)\n                if (oldContent) oldContent.style.display = 'none'\n            }\n            /** and unhide new route if possible @type {HTMLElement|null} */\n            const content = document.querySelector(`div[data-route=\"${newRouteId}\"]`)\n            if (content) {\n                content.style.removeProperty('display')\n                routeShown = true\n            } else {\n                // else create new content from template\n                routeShown = this._createRouteContent(newRouteId)\n            }\n        } else {\n            // config.hide != true so remove previous contents\n            container.replaceChildren()\n            // Create new content from template\n            routeShown = this._createRouteContent(newRouteId)\n        }\n\n        // console.log({ newRouteId, oldRouteId, currentHash, routeShown })\n\n        // Roll back the route change if the new route cannot be shown\n        if (routeShown === false) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            return\n        }\n\n        // Retain current and previous route id's\n        this.currentRouteId = newRouteId\n        this.previousRouteId = oldRouteId\n\n        // Record the current route on the route container\n        container.dataset.currentRoute = newRouteId\n\n        // Events on route changed ...\n        document.dispatchEvent(new CustomEvent('uibrouter:route-changed', { detail: { newRouteId, oldRouteId } }))\n        if (uibuilder) uibuilder.set('uibrouter', 'route changed') // eslint-disable-line no-undef\n    }\n\n    /** Return a route config given a route id (returns undefined if route not found)\n     * @param {string} routeId Route ID to search for\n     * @returns {routeDefinition|undefined} Route config for found id else undefined\n     */\n    getRouteConfigById(routeId) {\n        return Object.values(this.config.routes).filter(r => r.id === routeId)[0]\n    }\n\n    /** Return true if the given route is external, false otherwise\n     * Used to correctly (re)apply script tags when cloning the template to the DOM (createRouteContent)\n     * @param {string} routeId Route ID to check\n     * @returns {boolean} True if the given route is external, false otherwise\n     */\n    isRouteExternal(routeId) {\n        const routeConfig = this.getRouteConfigById(routeId)\n        return !!(routeConfig && routeConfig.type === 'url')\n    }\n\n    /** Go to the default route if it has been specified */\n    defaultRoute() {\n        if (this.config.defaultRoute) this.doRoute(this.config.defaultRoute)\n    }\n\n    removeHash() {\n        history.pushState('', document.title, window.location.pathname + window.location.search)\n    }\n\n    /** Empty the current container and remove url hash - does not trigger a route change */\n    noRoute() {\n        this.removeHash()\n        this.routeContainerEl.replaceChildren()\n    }\n\n    /** Only keep anything after the # & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Return an array of route ids (to facilitate creation of menus)\n     * @param {boolean} returnHash If true, returns id's with leading `#` to apply to href attributes else returns the id\n     * @returns {string[]} Array of route id's or route url hashes\n     */\n    routeList(returnHash) {\n        return Object.values(this.config.routes).map((r) => returnHash === true ? `#${r.id}` : r.id)\n    }\n\n    /** Add new route definitions to the existing ones\n     * @param {routeDefinition|routeDefinition[]} routeConfig Single or array of route definitions to add\n     */\n    addRoutes(routeConfig) {\n        if (!Array.isArray(routeConfig)) routeConfig = [routeConfig]\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routeConfig).filter(r => r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded - Add new routes to config\n                this.config.routes.push(...routeConfig)\n                // Let everyone know it all finished\n                document.dispatchEvent(new CustomEvent('uibrouter:routes-added', { detail: routeConfig }))\n                if (uibuilder) uibuilder.set('uibrouter', 'routes added') // eslint-disable-line no-undef, promise/always-return\n            } )\n    }\n\n    // TODO\n    // deleteRoutes(aRoutes) {\n    //     // Delete all if no list provided\n    //     if (!aRoutes) aRoutes = this.config.routes\n    //     if (!Array.isArray(aRoutes)) aRoutes = [aRoutes]\n    //     console.log('to be deleted', this.config.routes.filter(r => aRoutes.includes(r.id)))\n    //     console.log('to be retained', this.config.routes.filter(r => !aRoutes.includes(r.id)))\n\n    //     // TODO actually remove the unwanted route templates\n    //     // TODO remove from the config: this.config.routes = this.config.routes.filter(r => !aRoutes.includes(r.id))\n\n    //     // ? Optional future upgrade - attempt to also remove any links to this route?\n    // }\n\n    // TODO\n    // deleteTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO delete\n    //     } )\n    // }\n\n    // TODO\n    // reloadTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO reload\n    //     } )\n    // }\n} // ---- End of class ----\n\n// For use in ESM loads\nexport { UibRouter }\nexport default UibRouter\n\n// Auto-assign for when the library is loaded via a script tag\nif (!window['UibRouter']) {\n    window['UibRouter'] = UibRouter\n} else {\n    console.warn('`UibRouter` already assigned to window. Have you tried to load it more than once?')\n}\n"],
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+  "sourcesContent": ["// @ts-nocheck\n/** A simple, vanilla JavaScript front-end router class\n * Included in node-red-contrib-uibuilder but is not dependent on it.\n * May be used in other contexts as desired.\n * \n * Copyright (c) 2023-2023 Julian Knight (Totally Information)\n * https://it.knightnet.org.uk\n *\n * Licensed under the Apache License, Version 2.0 (the 'License');\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an 'AS IS' BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/** ---------------------------------------------------------------------\n * TODO\n * Methods needed:\n *   Delete route\n *   Update/reload route\n *   shutdown - that removes all elements\n *   delete templates - unloads a list of (or all) templates\n *   reload templates - to facilitate updates of a list of (or all) templates\n * Additional options:\n *   unload templates after they are added to the route container. Only if hide=true. `unload: true`\n *   Maybe: options to auto-load js and css files with the same name as a template file.\n * ---------------------------------------------------------------------  */\n\n/** Type definitions\n * routeConfig\n * @typedef {object} routeDefinition Single route configuration\n * @property {string} id REQUIRED. Route ID\n * @property {string} src REQUIRED. CSS Selector for template tag routes, url for external routes\n * @property {\"url\"|undefined} [type] OPTIONAL. \"url\" for external routes\n * UibRouterConfig\n * @typedef {object} UibRouterConfig Configuration for the UiBRouter class instances\n * @property {routeDefinition[]} routes REQUIRED. Array of route definitions\n * @property {string} [defaultRoute] OPTIONAL. If set to a route id, that route will be automatically shown on load\n * @property {string} [routeContainer] OPTIONAL. CSS Selector for an HTML Element containing routes\n * @property {boolean} [hide] OPTIONAL. If TRUE, routes will be hidden/shown on change instead of removed/added\n * @property {boolean} [unload] OPTIONAL. If TRUE, route templates will be unloaded from DOM after access. Only useful with the `hide` option\n */\n\nclass UibRouter { // eslint-disable-line no-unused-vars\n    //#region --- Variables ---\n    /** Class version */\n    static version = '1.0.0'\n\n    /** Configuration settings @type {UibRouterConfig} */\n    config\n    /** Reference to the container DOM element - set in setup() @type {HTMLDivElement} */\n    routeContainerEl\n    /** The current route id after doRoute() has been called */\n    currentRouteId\n    /** The previous route id after doRoute() has been called */\n    previousRouteId\n\n    /** Internal only. Set to true when the _start() method has been called */\n    #startDone = false\n    //#endregion --- ----- ---\n\n    //#region --- Internal Methods ---\n    /** Class constructor\n     * @param {UibRouterConfig} routerConfig Configuration object\n     */\n    constructor(routerConfig) {\n        // Fetch is on desktop browsers since 2017 at latest. Not so much on mobile (Android!)\n        // May need a polyfill on mobile or old browsers.\n        if (!fetch) throw new Error('[uibrouter:constructor] UibRouter requires `fetch`. Please use a current browser or load a fetch polyfill.')\n\n        if (!routerConfig) throw new Error('[uibrouter:constructor] No config provided')\n        if (!routerConfig.routes) throw new Error('[uibrouter:constructor] No routes provided in routerConfig')\n        // Add a default route container uf needed\n        if (!routerConfig.routeContainer)routerConfig.routeContainer = '#uibroutecontainer'\n\n        // Save the config\n        this.config = routerConfig\n        // Create/access the route container element, sets this.routeContainerEl\n        this._setRouteContainer()\n\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routerConfig.routes).filter(r => r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded so we can start\n                this._start()\n            } )\n    }\n\n    /** Save a reference to, and create if necessary, the HTML element to hold routes */\n    _setRouteContainer() {\n        const body = document.getElementsByTagName('body')[0]\n        // Get reference to route container or create it\n        let routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        if (!routeContainerEl) {\n            // throw new Error(`Route container element with CSS selector '${routerConfig.routeContainer}' not found in HTML`)\n            const tempContainer = document.createElement('div')\n            tempContainer.setAttribute('id', this.config.routeContainer.replace('#', ''))\n            body.append(tempContainer)\n            routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        }\n    }\n\n    /** Load fetched external elements to templates tags under the head tag\n     * @param {HTMLElement[]} loadedElements Array of loaded external elements to add as templates to the head tag\n     */\n    _appendExternalTemplates(loadedElements) {\n        const head = document.getElementsByTagName('head')[0]\n        // Append the loaded content to the main container\n        loadedElements.forEach(element => {\n            if (Array.isArray(element)) {\n                console.error(...element)\n            } else {\n                head.append(element)\n            }\n        })\n    }\n\n    /** Called once all external templates have been loaded */\n    _start() {\n        if (this.#startDone === true) return // Don't run this again\n\n        // Listen for url hash changes and process route change\n        window.addEventListener('hashchange', (event) => this._hashChange(event) )\n        // Go to default route if no route in url and if a default is defined or ensure current route is shown\n        this.doRoute()\n        // Events on fully loaded ...\n        document.dispatchEvent(new CustomEvent('uibrouter:loaded'))\n        if (uibuilder) uibuilder.set('uibrouter', 'loaded') // eslint-disable-line no-undef\n\n        this.#startDone = true // Don't run this again\n    }\n\n    /** Called when the URL Hash changes\n     * @param {HashChangeEvent} event URL Hash change event object\n     */\n    _hashChange(event) {\n        // console.log(`[uibrouter] hashchange: ${this.keepHashFromUrl(event.oldURL)} => ${this.keepHashFromUrl(event.newURL)}` )\n        this.doRoute(event)\n    }\n\n    /** Create DOM route content from a route template (internal or external)\n     * Route templates have to be a `<template>` tag with an ID that matches the route id.\n     * @param {string} routeId ID of the route definition to use to create the content\n     * @returns {boolean} True if the route content was created successfully, false otherwise\n     */\n    _createRouteContent(routeId) {\n        const rContent = document.querySelector(`#${routeId}`)\n        if (!rContent) {\n            console.error(`[uibrouter:createRouteContent] No route template found for route selector '#${routeId}'. Does the link url match a defined route id?`)\n            return false\n        }\n        const docFrag = rContent.content.cloneNode(true)\n        // Have to re-apply the scripts to make them run - only for external templates\n        if (this.isRouteExternal(routeId)) this._applyScripts(docFrag)\n        // Create the route wrapper div with data-route attrib\n        const tempContainer = document.createElement('div')\n        tempContainer.dataset.route = routeId\n        tempContainer.append(docFrag)\n        // And finally try to append to the container\n        try {\n            this.routeContainerEl.append(tempContainer)\n        } catch (e) {\n            console.error(`[uibrouter:createRouteContent] Failed to apply route id '${routeId}'. \\n ${e.message}`)\n            return false\n        }\n        return true\n    }\n\n    /** Loads an external HTML file into a `<template>` tag, adding the router id as the template id.\n     *  or returns an error array\n     * @param {routeDefinition} routeDefinition Configuration for a single route\n     * @returns {Promise<HTMLTemplateElement[]|[string,string,number,string]>} A promise that fulfills to an HTMLTemplateElement or an array containing error information\n     */\n    _loadExternal(routeDefinition) {\n        // const id = singleConfig.src.split('/').pop().replace('.html','')\n        const id = routeDefinition.id\n        // @ts-ignore\n        return fetch(routeDefinition.src)\n            .then(response => {\n                // Fetch failed?\n                if (response.ok === false) return [routeDefinition.id, routeDefinition.src, response.status, response.statusText]\n                return response.text()\n            })\n            .then((/** @type {string} */ htmlText) => {\n                if (Array.isArray(htmlText)) return htmlText // if the fetch failed\n\n                // Check to see if template already exists, if so, remove it\n                try {\n                    const chkTemplate = document.querySelector(`#${id}`)\n                    if (chkTemplate) chkTemplate.remove()\n                } catch (e) {}\n\n                const tempContainer = document.createElement('template')\n                tempContainer.innerHTML = htmlText\n                tempContainer.setAttribute('id', id)\n                return tempContainer\n            })\n            .catch(error => {\n                console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${routeDefinition.src}:`, error)\n            })\n    }\n\n    /** Remove/re-apply scripts in a container Element so that they are executed.\n     * @param {HTMLElement} tempContainer HTML Element of container to process\n     */\n    _applyScripts(tempContainer) {\n        const scripts = tempContainer.querySelectorAll('script')\n        scripts.forEach( scr => {\n            const newScript = document.createElement('script')\n            newScript.textContent = scr.innerText\n            tempContainer.append(newScript)\n            scr.remove() // remove the origin\n        })\n    }\n    //#endregion --- ----- --\n\n    /** Process a routing request\n     * @param {PointerEvent|MouseEvent|HashChangeEvent|TouchEvent|string} routeSource Either string containing route id or DOM Event object either click/touch on element containing `href=\"#routeid\"` or Hash URL change event\n     */\n    doRoute(routeSource) {\n        const container = this.routeContainerEl\n        if (!container) throw new Error('[uibrouter:doRoute] Cannot route, has router.setup() been called yet?')\n\n        // Remove all the url and query param text and any leading # - returns '' if no current hash\n        const currentHash = this.keepHashFromUrl(window.location.hash)\n\n        // If no route source provided, take the current hash (which might be '' and that will trigger the default route if defined)\n        if (!routeSource) routeSource = currentHash\n\n        let newRouteId, oldRouteId\n\n        // Define new and old routes depending on different call types\n        if (typeof routeSource === 'string') { // Manually provided route id\n            // console.log(`[uibrouter:doRoute] manual: ${currentHash} => ${this.keepHashFromUrl(routeSource)}. Current: ${currentHash}` )\n            newRouteId = this.keepHashFromUrl(routeSource)\n            oldRouteId = currentHash\n            // If no hash & config has default, set the default as new\n            if (newRouteId === '' && this.config.defaultRoute) newRouteId = this.config.defaultRoute\n            // If the new route id not the same as the current one in the url hash, just change the current hash & exit\n            if (newRouteId !== currentHash ) {\n                window.location.hash = `#${newRouteId}`\n                return\n            }\n        } else if (routeSource.type === 'hashchange') { // A URL Hash change event\n            // console.log(`[uibrouter:doRoute] hashchange: ${this.keepHashFromUrl(routeSource.oldURL)} => ${this.keepHashFromUrl(routeSource.newURL)}. Current: ${currentHash}` )\n            const newUrl = routeSource.newURL\n            // Check if URL actually contains a #\n            if (newUrl.includes('#')) {\n                oldRouteId = this.keepHashFromUrl(routeSource.oldURL)\n                newRouteId = this.keepHashFromUrl(newUrl) // Only keep anything after the # & ignoring query params\n            } else return\n        } else { // A mouse click/touch event on a dom element with an href attribute\n            oldRouteId = currentHash\n            // Try to get the route name from the URL hash\n            try {\n                newRouteId = this.keepHashFromUrl(routeSource.target.attributes.href.value) // Only keep anything after the # & ignoring query params\n            } catch (e) {\n                throw new Error('[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute')\n            }\n        }\n\n        let routeShown = false\n\n        // If no defined valid route, undo and throw error\n        if (!newRouteId || !this.routeList().includes(newRouteId)) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            throw new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${newRouteId}'`)\n        }\n\n        // Show the new container (replace or show)\n        if (this.config.hide) {\n            // config.hide = true so hide previous contents\n            if (oldRouteId) {\n                /** @type {HTMLElement|null} */\n                const oldContent = document.querySelector(`div[data-route=\"${oldRouteId}\"]`)\n                if (oldContent) oldContent.style.display = 'none'\n            }\n            /** and unhide new route if possible @type {HTMLElement|null} */\n            const content = document.querySelector(`div[data-route=\"${newRouteId}\"]`)\n            if (content) {\n                content.style.removeProperty('display')\n                routeShown = true\n            } else {\n                // else create new content from template\n                routeShown = this._createRouteContent(newRouteId)\n            }\n        } else {\n            // config.hide != true so remove previous contents\n            container.replaceChildren()\n            // Create new content from template\n            routeShown = this._createRouteContent(newRouteId)\n        }\n\n        // console.log({ newRouteId, oldRouteId, currentHash, routeShown })\n\n        // Roll back the route change if the new route cannot be shown\n        if (routeShown === false) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            return\n        }\n\n        // Retain current and previous route id's\n        this.currentRouteId = newRouteId\n        this.previousRouteId = oldRouteId\n\n        // Record the current route on the route container\n        container.dataset.currentRoute = newRouteId\n\n        // Events on route changed ...\n        document.dispatchEvent(new CustomEvent('uibrouter:route-changed', { detail: { newRouteId, oldRouteId } }))\n        if (uibuilder) uibuilder.set('uibrouter', 'route changed') // eslint-disable-line no-undef\n    }\n\n    /** Return a route config given a route id (returns undefined if route not found)\n     * @param {string} routeId Route ID to search for\n     * @returns {routeDefinition|undefined} Route config for found id else undefined\n     */\n    getRouteConfigById(routeId) {\n        return Object.values(this.config.routes).filter(r => r.id === routeId)[0]\n    }\n\n    /** Return true if the given route is external, false otherwise\n     * Used to correctly (re)apply script tags when cloning the template to the DOM (createRouteContent)\n     * @param {string} routeId Route ID to check\n     * @returns {boolean} True if the given route is external, false otherwise\n     */\n    isRouteExternal(routeId) {\n        const routeConfig = this.getRouteConfigById(routeId)\n        return !!(routeConfig && routeConfig.type === 'url')\n    }\n\n    /** Go to the default route if it has been specified */\n    defaultRoute() {\n        if (this.config.defaultRoute) this.doRoute(this.config.defaultRoute)\n    }\n\n    removeHash() {\n        history.pushState('', document.title, window.location.pathname + window.location.search)\n    }\n\n    /** Empty the current container and remove url hash - does not trigger a route change */\n    noRoute() {\n        this.removeHash()\n        this.routeContainerEl.replaceChildren()\n    }\n\n    /** Only keep anything after the # & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Return an array of route ids (to facilitate creation of menus)\n     * @param {boolean} returnHash If true, returns id's with leading `#` to apply to href attributes else returns the id\n     * @returns {string[]} Array of route id's or route url hashes\n     */\n    routeList(returnHash) {\n        return Object.values(this.config.routes).map((r) => returnHash === true ? `#${r.id}` : r.id)\n    }\n\n    /** Add new route definitions to the existing ones\n     * @param {routeDefinition|routeDefinition[]} routeConfig Single or array of route definitions to add\n     */\n    addRoutes(routeConfig) {\n        if (!Array.isArray(routeConfig)) routeConfig = [routeConfig]\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routeConfig).filter(r => r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded - Add new routes to config\n                this.config.routes.push(...routeConfig)\n                // Let everyone know it all finished\n                document.dispatchEvent(new CustomEvent('uibrouter:routes-added', { detail: routeConfig }))\n                if (uibuilder) uibuilder.set('uibrouter', 'routes added') // eslint-disable-line no-undef, promise/always-return\n            } )\n    }\n\n    // TODO\n    // deleteRoutes(aRoutes) {\n    //     // Delete all if no list provided\n    //     if (!aRoutes) aRoutes = this.config.routes\n    //     if (!Array.isArray(aRoutes)) aRoutes = [aRoutes]\n    //     console.log('to be deleted', this.config.routes.filter(r => aRoutes.includes(r.id)))\n    //     console.log('to be retained', this.config.routes.filter(r => !aRoutes.includes(r.id)))\n\n    //     // TODO actually remove the unwanted route templates\n    //     // TODO remove from the config: this.config.routes = this.config.routes.filter(r => !aRoutes.includes(r.id))\n\n    //     // ? Optional future upgrade - attempt to also remove any links to this route?\n    // }\n\n    // TODO\n    // deleteTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO delete\n    //     } )\n    // }\n\n    // TODO\n    // reloadTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO reload\n    //     } )\n    // }\n} // ---- End of class ----\n\n// For use in ESM loads\nexport { UibRouter }\nexport default UibRouter\n\n// Auto-assign for when the library is loaded via a script tag\nif (!window['UibRouter']) {\n    window['UibRouter'] = UibRouter\n} else {\n    console.warn('`UibRouter` already assigned to window. Have you tried to load it more than once?')\n}\n"],
+  "mappings": "6fAAA,IAAAA,EAiDMC,EAAN,KAAgB,CAsBZ,YAAYC,EAAc,CAhB1BC,EAAA,eAEAA,EAAA,yBAEAA,EAAA,uBAEAA,EAAA,wBAGAC,EAAA,KAAAJ,EAAa,IAUT,GAAI,CAAC,MAAO,MAAM,IAAI,MAAM,4GAA4G,EAExI,GAAI,CAACE,EAAc,MAAM,IAAI,MAAM,4CAA4C,EAC/E,GAAI,CAACA,EAAa,OAAQ,MAAM,IAAI,MAAM,4DAA4D,EAEjGA,EAAa,iBAAeA,EAAa,eAAiB,sBAG/D,KAAK,OAASA,EAEd,KAAK,mBAAmB,EAIxB,QAAQ,IAAI,OAAO,OAAOA,EAAa,MAAM,EAAE,OAAOG,GAAKA,EAAE,OAAS,KAAK,EAAE,IAAI,KAAK,aAAa,CAAC,EAC/F,KAAK,KAAK,wBAAwB,EAClC,KAAM,IAAM,CAET,KAAK,OAAO,CAChB,CAAE,CACV,CAGA,oBAAqB,CACjB,IAAMC,EAAO,SAAS,qBAAqB,MAAM,EAAE,CAAC,EAEhDC,EAAmB,KAAK,iBAAmB,SAAS,cAAc,KAAK,OAAO,cAAc,EAChG,GAAI,CAACA,EAAkB,CAEnB,IAAMC,EAAgB,SAAS,cAAc,KAAK,EAClDA,EAAc,aAAa,KAAM,KAAK,OAAO,eAAe,QAAQ,IAAK,EAAE,CAAC,EAC5EF,EAAK,OAAOE,CAAa,EACzBD,EAAmB,KAAK,iBAAmB,SAAS,cAAc,KAAK,OAAO,cAAc,CAChG,CACJ,CAKA,yBAAyBE,EAAgB,CACrC,IAAMC,EAAO,SAAS,qBAAqB,MAAM,EAAE,CAAC,EAEpDD,EAAe,QAAQE,GAAW,CAC1B,MAAM,QAAQA,CAAO,EACrB,QAAQ,MAAM,GAAGA,CAAO,EAExBD,EAAK,OAAOC,CAAO,CAE3B,CAAC,CACL,CAGA,QAAS,CACDC,EAAA,KAAKZ,KAAe,KAGxB,OAAO,iBAAiB,aAAea,GAAU,KAAK,YAAYA,CAAK,CAAE,EAEzE,KAAK,QAAQ,EAEb,SAAS,cAAc,IAAI,YAAY,kBAAkB,CAAC,EACtD,WAAW,UAAU,IAAI,YAAa,QAAQ,EAElDC,EAAA,KAAKd,EAAa,IACtB,CAKA,YAAYa,EAAO,CAEf,KAAK,QAAQA,CAAK,CACtB,CAOA,oBAAoBE,EAAS,CACzB,IAAMC,EAAW,SAAS,cAAc,IAAID,CAAO,EAAE,EACrD,GAAI,CAACC,EACD,eAAQ,MAAM,+EAA+ED,CAAO,gDAAgD,EAC7I,GAEX,IAAME,EAAUD,EAAS,QAAQ,UAAU,EAAI,EAE3C,KAAK,gBAAgBD,CAAO,GAAG,KAAK,cAAcE,CAAO,EAE7D,IAAMT,EAAgB,SAAS,cAAc,KAAK,EAClDA,EAAc,QAAQ,MAAQO,EAC9BP,EAAc,OAAOS,CAAO,EAE5B,GAAI,CACA,KAAK,iBAAiB,OAAOT,CAAa,CAC9C,OAASU,EAAG,CACR,eAAQ,MAAM,4DAA4DH,CAAO;AAAA,GAASG,EAAE,OAAO,EAAE,EAC9F,EACX,CACA,MAAO,EACX,CAOA,cAAcC,EAAiB,CAE3B,IAAMC,EAAKD,EAAgB,GAE3B,OAAO,MAAMA,EAAgB,GAAG,EAC3B,KAAKE,GAEEA,EAAS,KAAO,GAAc,CAACF,EAAgB,GAAIA,EAAgB,IAAKE,EAAS,OAAQA,EAAS,UAAU,EACzGA,EAAS,KAAK,CACxB,EACA,KAA4BC,GAAa,CACtC,GAAI,MAAM,QAAQA,CAAQ,EAAG,OAAOA,EAGpC,GAAI,CACA,IAAMC,EAAc,SAAS,cAAc,IAAIH,CAAE,EAAE,EAC/CG,GAAaA,EAAY,OAAO,CACxC,MAAY,CAAC,CAEb,IAAMf,EAAgB,SAAS,cAAc,UAAU,EACvD,OAAAA,EAAc,UAAYc,EAC1Bd,EAAc,aAAa,KAAMY,CAAE,EAC5BZ,CACX,CAAC,EACA,MAAMgB,GAAS,CACZ,QAAQ,MAAM,+DAA+DL,EAAgB,GAAG,IAAKK,CAAK,CAC9G,CAAC,CACT,CAKA,cAAchB,EAAe,CACTA,EAAc,iBAAiB,QAAQ,EAC/C,QAASiB,GAAO,CACpB,IAAMC,EAAY,SAAS,cAAc,QAAQ,EACjDA,EAAU,YAAcD,EAAI,UAC5BjB,EAAc,OAAOkB,CAAS,EAC9BD,EAAI,OAAO,CACf,CAAC,CACL,CAMA,QAAQE,EAAa,CACjB,IAAMC,EAAY,KAAK,iBACvB,GAAI,CAACA,EAAW,MAAM,IAAI,MAAM,uEAAuE,EAGvG,IAAMC,EAAc,KAAK,gBAAgB,OAAO,SAAS,IAAI,EAGxDF,IAAaA,EAAcE,GAEhC,IAAIC,EAAYC,EAGhB,GAAI,OAAOJ,GAAgB,UAOvB,GALAG,EAAa,KAAK,gBAAgBH,CAAW,EAC7CI,EAAaF,EAETC,IAAe,IAAM,KAAK,OAAO,eAAcA,EAAa,KAAK,OAAO,cAExEA,IAAeD,EAAc,CAC7B,OAAO,SAAS,KAAO,IAAIC,CAAU,GACrC,MACJ,UACOH,EAAY,OAAS,aAAc,CAE1C,IAAMK,EAASL,EAAY,OAE3B,GAAIK,EAAO,SAAS,GAAG,EACnBD,EAAa,KAAK,gBAAgBJ,EAAY,MAAM,EACpDG,EAAa,KAAK,gBAAgBE,CAAM,MACrC,OACX,KAAO,CACHD,EAAaF,EAEb,GAAI,CACAC,EAAa,KAAK,gBAAgBH,EAAY,OAAO,WAAW,KAAK,KAAK,CAC9E,MAAY,CACR,MAAM,IAAI,MAAM,wFAAwF,CAC5G,CACJ,CAEA,IAAIM,EAAa,GAGjB,GAAI,CAACH,GAAc,CAAC,KAAK,UAAU,EAAE,SAASA,CAAU,EAEpD,eAAS,cAAc,IAAI,YAAY,gCAAiC,CAAE,OAAQ,CAAE,WAAAA,EAAY,WAAAC,CAAW,CAAE,CAAC,CAAC,EAC3G,WAAW,UAAU,IAAI,YAAa,qBAAqB,EAE/D,OAAO,SAAS,KAAOA,EAAa,IAAIA,CAAU,GAAK,GACjD,IAAI,MAAM,6JAA6JD,CAAU,GAAG,EAI9L,GAAI,KAAK,OAAO,KAAM,CAElB,GAAIC,EAAY,CAEZ,IAAMG,EAAa,SAAS,cAAc,mBAAmBH,CAAU,IAAI,EACvEG,IAAYA,EAAW,MAAM,QAAU,OAC/C,CAEA,IAAMC,EAAU,SAAS,cAAc,mBAAmBL,CAAU,IAAI,EACpEK,GACAA,EAAQ,MAAM,eAAe,SAAS,EACtCF,EAAa,IAGbA,EAAa,KAAK,oBAAoBH,CAAU,CAExD,MAEIF,EAAU,gBAAgB,EAE1BK,EAAa,KAAK,oBAAoBH,CAAU,EAMpD,GAAIG,IAAe,GAAO,CAEtB,SAAS,cAAc,IAAI,YAAY,gCAAiC,CAAE,OAAQ,CAAE,WAAAH,EAAY,WAAAC,CAAW,CAAE,CAAC,CAAC,EAC3G,WAAW,UAAU,IAAI,YAAa,qBAAqB,EAE/D,OAAO,SAAS,KAAOA,EAAa,IAAIA,CAAU,GAAK,GACvD,MACJ,CAGA,KAAK,eAAiBD,EACtB,KAAK,gBAAkBC,EAGvBH,EAAU,QAAQ,aAAeE,EAGjC,SAAS,cAAc,IAAI,YAAY,0BAA2B,CAAE,OAAQ,CAAE,WAAAA,EAAY,WAAAC,CAAW,CAAE,CAAC,CAAC,EACrG,WAAW,UAAU,IAAI,YAAa,eAAe,CAC7D,CAMA,mBAAmBhB,EAAS,CACxB,OAAO,OAAO,OAAO,KAAK,OAAO,MAAM,EAAE,OAAOV,GAAKA,EAAE,KAAOU,CAAO,EAAE,CAAC,CAC5E,CAOA,gBAAgBA,EAAS,CACrB,IAAMqB,EAAc,KAAK,mBAAmBrB,CAAO,EACnD,MAAO,CAAC,EAAEqB,GAAeA,EAAY,OAAS,MAClD,CAGA,cAAe,CACP,KAAK,OAAO,cAAc,KAAK,QAAQ,KAAK,OAAO,YAAY,CACvE,CAEA,YAAa,CACT,QAAQ,UAAU,GAAI,SAAS,MAAO,OAAO,SAAS,SAAW,OAAO,SAAS,MAAM,CAC3F,CAGA,SAAU,CACN,KAAK,WAAW,EAChB,KAAK,iBAAiB,gBAAgB,CAC1C,CAMA,gBAAgBC,EAAK,CACjB,OAAKA,EACEA,EAAI,QAAQ,WAAY,IAAI,EAAE,QAAQ,QAAS,EAAE,EADvC,EAErB,CAMA,UAAUC,EAAY,CAClB,OAAO,OAAO,OAAO,KAAK,OAAO,MAAM,EAAE,IAAKjC,GAAMiC,IAAe,GAAO,IAAIjC,EAAE,EAAE,GAAKA,EAAE,EAAE,CAC/F,CAKA,UAAU+B,EAAa,CACd,MAAM,QAAQA,CAAW,IAAGA,EAAc,CAACA,CAAW,GAG3D,QAAQ,IAAI,OAAO,OAAOA,CAAW,EAAE,OAAO/B,GAAKA,EAAE,OAAS,KAAK,EAAE,IAAI,KAAK,aAAa,CAAC,EACvF,KAAK,KAAK,wBAAwB,EAClC,KAAM,IAAM,CAET,KAAK,OAAO,OAAO,KAAK,GAAG+B,CAAW,EAEtC,SAAS,cAAc,IAAI,YAAY,yBAA0B,CAAE,OAAQA,CAAY,CAAC,CAAC,EACrF,WAAW,UAAU,IAAI,YAAa,cAAc,CAC5D,CAAE,CACV,CA+BJ,EA1WIpC,EAAA,YAZAG,EAHEF,EAGK,UAAU,SA0XrB,IAAOsC,EAAQC,EAGV,OAAO,UAGR,QAAQ,KAAK,mFAAmF,EAFhG,OAAO,UAAeA",
   "names": ["_startDone", "UibRouter", "routerConfig", "__publicField", "__privateAdd", "r", "body", "routeContainerEl", "tempContainer", "loadedElements", "head", "element", "__privateGet", "event", "__privateSet", "routeId", "rContent", "docFrag", "e", "routeDefinition", "id", "response", "htmlText", "chkTemplate", "error", "scr", "newScript", "routeSource", "container", "currentHash", "newRouteId", "oldRouteId", "newUrl", "routeShown", "oldContent", "content", "routeConfig", "url", "returnHash", "uibrouter_default", "UibRouter"]
 }
diff --git a/src/front-end-module/uibrouter.js b/src/front-end-module/uibrouter.js
index 664458a7..0d62a3dd 100644
--- a/src/front-end-module/uibrouter.js
+++ b/src/front-end-module/uibrouter.js
@@ -214,10 +214,10 @@ class UibRouter { // eslint-disable-line no-unused-vars
     _applyScripts(tempContainer) {
         const scripts = tempContainer.querySelectorAll('script')
         scripts.forEach( scr => {
-            if (scr.parentElement) scr.parentElement.removeChild(scr)
             const newScript = document.createElement('script')
             newScript.textContent = scr.innerText
             tempContainer.append(newScript)
+            scr.remove() // remove the origin
         })
     }
     //#endregion --- ----- --

From 23385aa658127eaea6eab1bb79ae90622ec57743 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Fri, 24 Nov 2023 19:42:27 +0000
Subject: [PATCH 02/78] Bump version to 6.8

---
 front-end/ui.esm.js          | 2 +-
 front-end/ui.esm.min.js      | 2 +-
 front-end/ui.esm.min.js.map  | 2 +-
 front-end/ui.iife.js         | 2 +-
 front-end/ui.iife.min.js     | 2 +-
 front-end/ui.iife.min.js.map | 2 +-
 nodes/libs/ui.js             | 2 +-
 package-lock.json            | 4 ++--
 package.json                 | 4 ++--
 src/front-end-module/ui.js   | 2 +-
 10 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/front-end/ui.esm.js b/front-end/ui.esm.js
index 33f40b70..1fdb4314 100644
--- a/front-end/ui.esm.js
+++ b/front-end/ui.esm.js
@@ -20,7 +20,7 @@ var require_ui = __commonJS({
        * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input
        */
       constructor(win, extLog, jsonHighlight) {
-        __publicField(this, "version", "6.6.0-src");
+        __publicField(this, "version", "6.8.0-src");
         // List of tags and attributes not in sanitise defaults but allowed in uibuilder.
         __publicField(this, "sanitiseExtraTags", ["uib-var"]);
         __publicField(this, "sanitiseExtraAttribs", ["variable", "report", "undefined"]);
diff --git a/front-end/ui.esm.min.js b/front-end/ui.esm.min.js
index 5cf8cd0b..4b0d3171 100644
--- a/front-end/ui.esm.min.js
+++ b/front-end/ui.esm.min.js
@@ -1,2 +1,2 @@
-var g=Object.create;var d=Object.defineProperty;var m=Object.getOwnPropertyDescriptor;var p=Object.getOwnPropertyNames;var b=Object.getPrototypeOf,v=Object.prototype.hasOwnProperty;var E=(l,e,t)=>e in l?d(l,e,{enumerable:!0,configurable:!0,writable:!0,value:t}):l[e]=t;var f=(l=>typeof require<"u"?require:typeof Proxy<"u"?new Proxy(l,{get:(e,t)=>(typeof require<"u"?require:e)[t]}):l)(function(l){if(typeof require<"u")return require.apply(this,arguments);throw Error('Dynamic require of "'+l+'" is not supported')});var S=(l,e)=>()=>(e||l((e={exports:{}}).exports,e),e.exports);var k=(l,e,t,i)=>{if(e&&typeof e=="object"||typeof e=="function")for(let r of p(e))!v.call(l,r)&&r!==t&&d(l,r,{get:()=>e[r],enumerable:!(i=m(e,r))||i.enumerable});return l};var y=(l,e,t)=>(t=l!=null?g(b(l)):{},k(e||!l||!l.__esModule?d(t,"default",{value:l,enumerable:!0}):t,l));var u=(l,e,t)=>(E(l,typeof e!="symbol"?e+"":e,t),t);var C=S((M,w)=>{var a,x=(a=class{constructor(e,t,i){u(this,"version","6.6.0-esm.min");u(this,"sanitiseExtraTags",["uib-var"]);u(this,"sanitiseExtraAttribs",["variable","report","undefined"]);u(this,"window");if(e)this.window=e;else throw new Error("Ui:constructor. Current environment does not include `window`, UI functions cannot be used.");this.document=this.window.document,t?a.log=t:a.log=function(){return function(){}},i?this.syntaxHighlight=i:this.syntaxHighlight=function(){}}ui(e){let t={};e._ui?t=e:t._ui=e,this._uiManager(t)}replaceSlot(e,t){t.slot&&e&&(this.window.DOMPurify&&(t.slot=this.window.DOMPurify.sanitize(t.slot)),e.innerHTML=t.slot)}convertMarkdown(e){if(!e)return"";if(!this.window.markdownit)return e;let t={html:!0,linkify:!0,_highlight:!0,langPrefix:"language-",highlight(r,n){if(n&&this.window.hljs&&this.window.hljs.getLanguage(n))try{return'<pre class="highlight" data-language="'.concat(n.toUpperCase(),'">\n                                <code class="language-').concat(n,'">').concat(this.window.hljs.highlightAuto(r).value,"</code></pre>")}finally{}return'<pre class="highlight"><code>'.concat(i.utils.escapeHtml(r),"</code></pre>")}},i=this.window.markdownit(t);return i.render(e)}sanitiseHTML(e){return this.window.DOMPurify?this.window.DOMPurify.sanitize(e,{ADD_TAGS:this.sanitiseExtraTags,ADD_ATTR:this.sanitiseExtraAttribs}):e}replaceSlotMarkdown(e,t){e&&t.slotMarkdown&&(t.slotMarkdown=this.convertMarkdown(t.slotMarkdown),t.slotMarkdown=this.sanitiseHTML(t.slotMarkdown),e.innerHTML=t.slotMarkdown)}loadScriptSrc(e){let t=this.document.createElement("script");t.src=e,t.async=!1,this.document.head.appendChild(t)}loadStyleSrc(e){let t=this.document.createElement("link");t.href=e,t.rel="stylesheet",t.type="text/css",this.document.head.appendChild(t)}loadScriptTxt(e){let t=this.document.createElement("script");t.async=!1,t.textContent=e,this.document.head.appendChild(t)}loadStyleTxt(e){let t=this.document.createElement("style");t.textContent=e,this.document.head.appendChild(t)}showDialog(e,t,i){let r="";if(i.payload&&typeof i.payload=="string"&&(r+=i.payload),t.content&&(r+=t.content),r===""){a.log(1,"Ui:showDialog","Toast content is blank. Not shown.")();return}!t.title&&i.topic&&(t.title=i.topic),t.title&&(r='<p class="toast-head">'.concat(t.title,"</p><p>").concat(r,"</p>")),t.noAutohide&&(t.noAutoHide=t.noAutohide),t.noAutoHide&&(t.autohide=!t.noAutoHide),t.autoHideDelay?(t.autohide||(t.autohide=!0),t.delay=t.autoHideDelay):t.autoHideDelay=1e4,Object.prototype.hasOwnProperty.call(t,"autohide")||(t.autohide=!0),e==="alert"&&(t.modal=!0,t.autohide=!1,r='<svg viewBox="0 0 192.146 192.146" style="width:30;background-color:transparent;"><path d="M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z" /></svg> '.concat(r));let n=this.document.getElementById("toaster");n===null&&(n=this.document.createElement("div"),n.id="toaster",n.title="Click to clear all notifcations",n.setAttribute("class","toaster"),n.setAttribute("role","dialog"),n.setAttribute("arial-label","Toast message"),n.onclick=function(){n.remove()},this.document.body.insertAdjacentElement("afterbegin",n));let s=this.document.createElement("div");s.title="Click to clear this notifcation",s.setAttribute("class","toast ".concat(t.variant?t.variant:""," ").concat(e)),s.innerHTML=r,s.setAttribute("role","alertdialog"),t.modal&&s.setAttribute("aria-modal",t.modal),s.onclick=function(c){c.stopPropagation(),s.remove(),n.childElementCount<1&&n.remove()},n.insertAdjacentElement(t.appendToast===!0?"beforeend":"afterbegin",s),t.autohide===!0&&setInterval(()=>{s.remove(),n.childElementCount<1&&n.remove()},t.autoHideDelay)}_showNotification(e){e.topic&&!e.title&&(e.title=e.topic),e.title||(e.title="uibuilder notification"),e.payload&&!e.body&&(e.body=e.payload),e.body||(e.body=" No message given.");try{let t=new Notification(e.title,e);return new Promise((i,r)=>{t.addEventListener("close",n=>{n.currentTarget.userAction="close",i(n)}),t.addEventListener("click",n=>{n.currentTarget.userAction="click",i(n)}),t.addEventListener("error",n=>{n.currentTarget.userAction="error",r(n)})})}catch{return Promise.reject(new Error("Browser refused to create a Notification"))}}async notification(e){if(typeof e=="string"&&(e={body:e}),typeof Notification>"u")return Promise.reject(new Error("Notifications not available in this browser"));let t=Notification.permission;return t==="denied"?Promise.reject(new Error("Notifications not permitted by user")):t==="granted"?this._showNotification(e):(t=await Notification.requestPermission(),t==="granted"?this._showNotification(e):Promise.reject(new Error("Notifications not permitted by user")))}loadui(e){if(!fetch){a.log(0,"Ui:loadui","Current environment does not include `fetch`, skipping.")();return}if(!e){a.log(0,"Ui:loadui","url parameter must be provided, skipping.")();return}fetch(e).then(t=>{if(t.ok===!1)throw new Error("Could not load '".concat(e,"'. Status ").concat(t.status,", Error: ").concat(t.statusText));a.log("trace","Ui:loadui:then1","Loaded '".concat(e,"'. Status ").concat(t.status,", ").concat(t.statusText))();let i=t.headers.get("content-type");if(!i||!i.includes("application/json"))throw new TypeError("Fetch '".concat(e,"' did not return JSON, ignoring"));return t.json()}).then(t=>t!==void 0?(a.log("trace","Ui:loadui:then2","Parsed JSON successfully obtained")(),this._uiManager({_ui:t}),!0):!1).catch(t=>{a.log("warn","Ui:loadui:catch","Error. ",t)()})}_uiComposeComponent(e,t){t.attributes&&Object.keys(t.attributes).forEach(i=>{i==="value"&&(e.value=t.attributes[i]),i.startsWith("xlink:")?e.setAttributeNS("http://www.w3.org/1999/xlink",i,t.attributes[i]):e.setAttribute(i,t.attributes[i])}),t.id&&e.setAttribute("id",t.id),t.type==="svg"&&(e.setAttributeNS("http://www.w3.org/2000/xmlns/","xmlns","http://www.w3.org/2000/svg"),e.setAttributeNS("http://www.w3.org/2000/xmlns/","xmlns:xlink","http://www.w3.org/1999/xlink")),t.events&&Object.keys(t.events).forEach(i=>{i.toLowerCase==="onclick"&&(i="click");try{e.addEventListener(i,r=>{new Function("evt","".concat(t.events[i],"(evt)"))(r)})}catch(r){a.log("error","Ui:_uiComposeComponent","Add event '".concat(i,"' for element '").concat(t.type,"': Cannot add event handler. ").concat(r.message))()}}),t.properties&&Object.keys(t.properties).forEach(i=>{e[i]=t.properties[i]}),t.slot&&this.replaceSlot(e,t),t.slotMarkdown&&this.replaceSlotMarkdown(e,t)}uiEnhanceElement(e,t){this._uiComposeComponent(e,t)}_uiExtendEl(e,t,i=""){t.forEach((r,n)=>{a.log("trace","Ui:_uiExtendEl:components-forEach:".concat(n),r)();let s;r.ns=i,r.ns==="html"?(s=e,e.innerHTML=r.slot):r.ns==="svg"?(s=this.document.createElementNS("http://www.w3.org/2000/svg",r.type),this._uiComposeComponent(s,r),e.appendChild(s)):(s=this.document.createElement(r.type==="html"?"div":r.type),this._uiComposeComponent(s,r),e.appendChild(s)),r.components&&this._uiExtendEl(s,r.components,r.ns)})}_uiAdd(e,t){a.log("trace","Ui:_uiManager:add","Starting _uiAdd")(),e.components.forEach((i,r)=>{a.log("trace","Ui:_uiAdd:components-forEach:".concat(r),"Component to add: ",i)();let n;switch(i.type){case"html":{i.ns="html",n=this.document.createElement("div");break}case"svg":{i.ns="svg",n=this.document.createElementNS("http://www.w3.org/2000/svg","svg");break}default:{i.ns="dom",n=this.document.createElement(i.type);break}}!i.slot&&e.payload&&(i.slot=e.payload),this._uiComposeComponent(n,i);let s;i.parentEl?s=i.parentEl:e.parentEl?s=e.parentEl:i.parent?s=this.document.querySelector(i.parent):e.parent&&(s=this.document.querySelector(e.parent)),s||(a.log("info","Ui:_uiAdd","No parent found, adding to body")(),s=this.document.querySelector("body")),i.position&&i.position==="first"?s.insertBefore(n,s.firstChild):i.position&&Number.isInteger(Number(i.position))?s.insertBefore(n,s.children[i.position]):s.appendChild(n),i.components&&this._uiExtendEl(n,i.components,i.ns)})}_uiRemove(e,t=!1){e.components.forEach(i=>{let r;t!==!0?r=[this.document.querySelector(i)]:r=this.document.querySelectorAll(i),r.forEach(n=>{try{n.remove()}catch(s){a.log("trace","Ui:_uiRemove","Could not remove. ".concat(s.message))()}})})}_uiReplace(e){a.log("trace","Ui:_uiReplace","Starting")(),e.components.forEach((t,i)=>{a.log("trace","Ui:_uiReplace:components-forEach:".concat(i),"Component to replace: ",t)();let r;if(t.id?r=this.document.getElementById(t.id):t.selector||t.select?r=this.document.querySelector(t.selector):t.name?r=this.document.querySelector('[name="'.concat(t.name,'"]')):t.type&&(r=this.document.querySelector(t.type)),a.log("trace","Ui:_uiReplace:components-forEach:".concat(i),"Element to replace: ",r)(),r==null){a.log("trace","Ui:_uiReplace:components-forEach:".concat(i,":noReplace"),"Cannot find the DOM element. Adding instead.",t)(),this._uiAdd({components:[t]},!1);return}let n;switch(t.type){case"html":{t.ns="html",n=this.document.createElement("div");break}case"svg":{t.ns="svg",n=this.document.createElementNS("http://www.w3.org/2000/svg","svg");break}default:{t.ns="dom",n=this.document.createElement(t.type);break}}this._uiComposeComponent(n,t),r.replaceWith(n),t.components&&this._uiExtendEl(n,t.components,t.ns)})}_uiUpdate(e){a.log("trace","Ui:_uiManager:update","Starting _uiUpdate")(),e.components||(e.components=[Object.assign({},e)]),e.components.forEach((t,i)=>{a.log("trace","_uiUpdate:components-forEach","Component #".concat(i),t)();let r;if(t.id?r=this.document.querySelectorAll("#".concat(t.id)):t.selector||t.select?r=this.document.querySelectorAll(t.selector):t.name?r=this.document.querySelectorAll('[name="'.concat(t.name,'"]')):t.type&&(r=this.document.querySelectorAll(t.type)),r===void 0||r.length<1){a.log("warn","Ui:_uiManager:update","Cannot find the DOM element. Ignoring.",t)();return}a.log("trace","_uiUpdate:components-forEach","Element(s) to update. Count: ".concat(r.length),r)(),!t.slot&&t.payload&&(t.slot=t.payload),r.forEach(n=>{this._uiComposeComponent(n,t)}),t.components&&r.forEach(n=>{a.log("trace","_uiUpdate:components","el",n)(),this._uiUpdate({method:e.method,parentEl:n,components:t.components})})})}_uiLoad(e){e.components&&(Array.isArray(e.components)||(e.components=[e.components]),e.components.forEach(async t=>{await Promise.resolve().then(()=>y(f(t)))})),e.srcScripts&&(Array.isArray(e.srcScripts)||(e.srcScripts=[e.srcScripts]),e.srcScripts.forEach(t=>{this.loadScriptSrc(t)})),e.txtScripts&&(Array.isArray(e.txtScripts)||(e.txtScripts=[e.txtScripts]),this.loadScriptTxt(e.txtScripts.join("\n"))),e.srcStyles&&(Array.isArray(e.srcStyles)||(e.srcStyles=[e.srcStyles]),e.srcStyles.forEach(t=>{this.loadStyleSrc(t)})),e.txtStyles&&(Array.isArray(e.txtStyles)||(e.txtStyles=[e.txtStyles]),this.loadStyleTxt(e.txtStyles.join("\n")))}_uiReload(){a.log("trace","Ui:uiManager:reload","reloading")(),location.reload()}_uiManager(e){e._ui&&(Array.isArray(e._ui)||(e._ui=[e._ui]),e._ui.forEach((t,i)=>{if(!t.method){a.log("error","Ui:_uiManager","No method defined for msg._ui[".concat(i,"]. Ignoring"))();return}switch(t.payload=e.payload,t.topic=e.topic,t.method){case"add":{this._uiAdd(t,!1);break}case"remove":{this._uiRemove(t,!1);break}case"removeAll":{this._uiRemove(t,!0);break}case"replace":{this._uiReplace(t);break}case"update":{this._uiUpdate(t);break}case"load":{this._uiLoad(t);break}case"reload":{this._uiReload();break}case"notify":{this.showDialog("notify",t,e);break}case"alert":{this.showDialog("alert",t,e);break}default:{a.log("error","Ui:_uiManager","Invalid msg._ui[".concat(i,"].method (").concat(t.method,"). Ignoring"))();break}}}))}nodeGet(e,t){let i={id:e.id===""?void 0:e.id,name:e.name,children:e.childNodes.length,type:e.nodeName,attributes:void 0,isUserInput:!!e.validity,userInput:e.validity?{value:e.value,validity:void 0,willValidate:e.willValidate,valueAsDate:e.valueAsDate,valueAsNumber:e.valueAsNumber,type:e.type}:void 0};if(["UL","OL"].includes(e.nodeName)){let r=this.document.querySelectorAll("".concat(t," li"));r&&(i.list={entries:r.length})}if(e.nodeName==="DL"){let r=this.document.querySelectorAll("".concat(t," dt"));r&&(i.list={entries:r.length})}if(e.nodeName==="TABLE"){let r=this.document.querySelectorAll("".concat(t," > tbody > tr")),n=this.document.querySelectorAll("".concat(t," > thead > tr")),s=this.document.querySelectorAll("".concat(t," > tbody > tr:last-child > *"));(r||n||s)&&(i.table={headRows:n?n.length:0,bodyRows:r?r.length:0,columns:s?s.length:0})}if(e.nodeName!=="#text"&&e.attributes&&e.attributes.length>0){i.attributes={};for(let r of e.attributes)r.name!=="id"&&(i.attributes[r.name]=e.attributes[r.name].value)}e.nodeName==="#text"&&(i.text=e.textContent),e.validity&&(i.userInput.validity={});for(let r in e.validity)i.userInput.validity[r]=e.validity[r];return i}uiGet(e,t=null){let i=this.document.querySelectorAll(e),r=[];return i.forEach(n=>{if(t!==null&&t!==""){let s=n.getAttribute(t);if(s==null)try{s=n[t]}catch{}if(s==null)t.toLowerCase()==="value"?r.push(n.innerText):r.push("Property '".concat(t,"' not found"));else if(s.constructor.name==="NamedNodeMap"){let c={};for(let o of s)c[o.name]=s[o.name].value;r.push(c)}else if(!s.constructor.name.toLowerCase().includes("map"))r.push({[t]:s});else{let c={};for(let o in s)c[o]=s[o];r.push(c)}}else r.push(this.nodeGet(n,e))}),r}async include(e,t){if(!fetch)return a.log(0,"Ui:include","Current environment does not include `fetch`, skipping.")(),"Current environment does not include `fetch`, skipping.";if(!e)return a.log(0,"Ui:include","url parameter must be provided, skipping.")(),"url parameter must be provided, skipping.";if(!t||!t.id)return a.log(0,"Ui:include","uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.")(),"uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.";let i;try{i=await fetch(e)}catch(h){return a.log(0,"Ui:include","Fetch of file '".concat(e,"' failed. "),h.message)(),h.message}if(!i.ok)return a.log(0,"Ui:include","Fetch of file '".concat(e,"' failed. Status='").concat(i.statusText,"'"))(),i.statusText;let r=await i.headers.get("content-type"),n=null;r&&(r.includes("text/html")?n="html":r.includes("application/json")?n="json":r.includes("multipart/form-data")?n="form":r.includes("image/")?n="image":r.includes("video/")?n="video":r.includes("application/pdf")?n="pdf":r.includes("text/plain")&&(n="text"));let s="",c="Include successful",o;switch(n){case"html":{o=await i.text(),s=o;break}case"json":{o=await i.json(),s='<pre class="syntax-highlight">',s+=this.syntaxHighlight(o),s+="</pre>";break}case"form":{o=await i.formData(),s='<pre class="syntax-highlight">',s+=this.syntaxHighlight(o),s+="</pre>";break}case"image":{o=await i.blob(),s='<img src="'.concat(URL.createObjectURL(o),'">'),this.window.DOMPurify&&(c="Include successful. BUT DOMPurify loaded which may block its use.",a.log("warn","Ui:include:image",c)());break}case"video":{o=await i.blob(),s='<video controls autoplay><source src="'.concat(URL.createObjectURL(o),'"></video>'),this.window.DOMPurify&&(c="Include successful. BUT DOMPurify loaded which may block its use.",a.log("warn","Ui:include:video",c)());break}case"pdf":case"text":default:{o=await i.blob(),s='<iframe style="resize:both;width:inherit;height:inherit;" src="'.concat(URL.createObjectURL(o),'">'),this.window.DOMPurify&&(c="Include successful. BUT DOMPurify loaded which may block its use.",a.log("warn","Ui:include:".concat(n),c)());break}}return t.type="div",t.slot=s,t.parent||(t.parent="body"),t.attributes||(t.attributes={class:"included"}),this._uiReplace({components:[t]}),a.log("trace","Ui:include:".concat(n),c)(),c}},u(a,"log"),a);w.exports=x});export default C();
+var g=Object.create;var d=Object.defineProperty;var m=Object.getOwnPropertyDescriptor;var p=Object.getOwnPropertyNames;var b=Object.getPrototypeOf,v=Object.prototype.hasOwnProperty;var E=(l,e,t)=>e in l?d(l,e,{enumerable:!0,configurable:!0,writable:!0,value:t}):l[e]=t;var f=(l=>typeof require<"u"?require:typeof Proxy<"u"?new Proxy(l,{get:(e,t)=>(typeof require<"u"?require:e)[t]}):l)(function(l){if(typeof require<"u")return require.apply(this,arguments);throw Error('Dynamic require of "'+l+'" is not supported')});var S=(l,e)=>()=>(e||l((e={exports:{}}).exports,e),e.exports);var k=(l,e,t,i)=>{if(e&&typeof e=="object"||typeof e=="function")for(let r of p(e))!v.call(l,r)&&r!==t&&d(l,r,{get:()=>e[r],enumerable:!(i=m(e,r))||i.enumerable});return l};var y=(l,e,t)=>(t=l!=null?g(b(l)):{},k(e||!l||!l.__esModule?d(t,"default",{value:l,enumerable:!0}):t,l));var u=(l,e,t)=>(E(l,typeof e!="symbol"?e+"":e,t),t);var C=S((M,w)=>{var a,x=(a=class{constructor(e,t,i){u(this,"version","6.8.0-esm.min");u(this,"sanitiseExtraTags",["uib-var"]);u(this,"sanitiseExtraAttribs",["variable","report","undefined"]);u(this,"window");if(e)this.window=e;else throw new Error("Ui:constructor. Current environment does not include `window`, UI functions cannot be used.");this.document=this.window.document,t?a.log=t:a.log=function(){return function(){}},i?this.syntaxHighlight=i:this.syntaxHighlight=function(){}}ui(e){let t={};e._ui?t=e:t._ui=e,this._uiManager(t)}replaceSlot(e,t){t.slot&&e&&(this.window.DOMPurify&&(t.slot=this.window.DOMPurify.sanitize(t.slot)),e.innerHTML=t.slot)}convertMarkdown(e){if(!e)return"";if(!this.window.markdownit)return e;let t={html:!0,linkify:!0,_highlight:!0,langPrefix:"language-",highlight(r,n){if(n&&this.window.hljs&&this.window.hljs.getLanguage(n))try{return'<pre class="highlight" data-language="'.concat(n.toUpperCase(),'">\n                                <code class="language-').concat(n,'">').concat(this.window.hljs.highlightAuto(r).value,"</code></pre>")}finally{}return'<pre class="highlight"><code>'.concat(i.utils.escapeHtml(r),"</code></pre>")}},i=this.window.markdownit(t);return i.render(e)}sanitiseHTML(e){return this.window.DOMPurify?this.window.DOMPurify.sanitize(e,{ADD_TAGS:this.sanitiseExtraTags,ADD_ATTR:this.sanitiseExtraAttribs}):e}replaceSlotMarkdown(e,t){e&&t.slotMarkdown&&(t.slotMarkdown=this.convertMarkdown(t.slotMarkdown),t.slotMarkdown=this.sanitiseHTML(t.slotMarkdown),e.innerHTML=t.slotMarkdown)}loadScriptSrc(e){let t=this.document.createElement("script");t.src=e,t.async=!1,this.document.head.appendChild(t)}loadStyleSrc(e){let t=this.document.createElement("link");t.href=e,t.rel="stylesheet",t.type="text/css",this.document.head.appendChild(t)}loadScriptTxt(e){let t=this.document.createElement("script");t.async=!1,t.textContent=e,this.document.head.appendChild(t)}loadStyleTxt(e){let t=this.document.createElement("style");t.textContent=e,this.document.head.appendChild(t)}showDialog(e,t,i){let r="";if(i.payload&&typeof i.payload=="string"&&(r+=i.payload),t.content&&(r+=t.content),r===""){a.log(1,"Ui:showDialog","Toast content is blank. Not shown.")();return}!t.title&&i.topic&&(t.title=i.topic),t.title&&(r='<p class="toast-head">'.concat(t.title,"</p><p>").concat(r,"</p>")),t.noAutohide&&(t.noAutoHide=t.noAutohide),t.noAutoHide&&(t.autohide=!t.noAutoHide),t.autoHideDelay?(t.autohide||(t.autohide=!0),t.delay=t.autoHideDelay):t.autoHideDelay=1e4,Object.prototype.hasOwnProperty.call(t,"autohide")||(t.autohide=!0),e==="alert"&&(t.modal=!0,t.autohide=!1,r='<svg viewBox="0 0 192.146 192.146" style="width:30;background-color:transparent;"><path d="M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z" /></svg> '.concat(r));let n=this.document.getElementById("toaster");n===null&&(n=this.document.createElement("div"),n.id="toaster",n.title="Click to clear all notifcations",n.setAttribute("class","toaster"),n.setAttribute("role","dialog"),n.setAttribute("arial-label","Toast message"),n.onclick=function(){n.remove()},this.document.body.insertAdjacentElement("afterbegin",n));let s=this.document.createElement("div");s.title="Click to clear this notifcation",s.setAttribute("class","toast ".concat(t.variant?t.variant:""," ").concat(e)),s.innerHTML=r,s.setAttribute("role","alertdialog"),t.modal&&s.setAttribute("aria-modal",t.modal),s.onclick=function(c){c.stopPropagation(),s.remove(),n.childElementCount<1&&n.remove()},n.insertAdjacentElement(t.appendToast===!0?"beforeend":"afterbegin",s),t.autohide===!0&&setInterval(()=>{s.remove(),n.childElementCount<1&&n.remove()},t.autoHideDelay)}_showNotification(e){e.topic&&!e.title&&(e.title=e.topic),e.title||(e.title="uibuilder notification"),e.payload&&!e.body&&(e.body=e.payload),e.body||(e.body=" No message given.");try{let t=new Notification(e.title,e);return new Promise((i,r)=>{t.addEventListener("close",n=>{n.currentTarget.userAction="close",i(n)}),t.addEventListener("click",n=>{n.currentTarget.userAction="click",i(n)}),t.addEventListener("error",n=>{n.currentTarget.userAction="error",r(n)})})}catch{return Promise.reject(new Error("Browser refused to create a Notification"))}}async notification(e){if(typeof e=="string"&&(e={body:e}),typeof Notification>"u")return Promise.reject(new Error("Notifications not available in this browser"));let t=Notification.permission;return t==="denied"?Promise.reject(new Error("Notifications not permitted by user")):t==="granted"?this._showNotification(e):(t=await Notification.requestPermission(),t==="granted"?this._showNotification(e):Promise.reject(new Error("Notifications not permitted by user")))}loadui(e){if(!fetch){a.log(0,"Ui:loadui","Current environment does not include `fetch`, skipping.")();return}if(!e){a.log(0,"Ui:loadui","url parameter must be provided, skipping.")();return}fetch(e).then(t=>{if(t.ok===!1)throw new Error("Could not load '".concat(e,"'. Status ").concat(t.status,", Error: ").concat(t.statusText));a.log("trace","Ui:loadui:then1","Loaded '".concat(e,"'. Status ").concat(t.status,", ").concat(t.statusText))();let i=t.headers.get("content-type");if(!i||!i.includes("application/json"))throw new TypeError("Fetch '".concat(e,"' did not return JSON, ignoring"));return t.json()}).then(t=>t!==void 0?(a.log("trace","Ui:loadui:then2","Parsed JSON successfully obtained")(),this._uiManager({_ui:t}),!0):!1).catch(t=>{a.log("warn","Ui:loadui:catch","Error. ",t)()})}_uiComposeComponent(e,t){t.attributes&&Object.keys(t.attributes).forEach(i=>{i==="value"&&(e.value=t.attributes[i]),i.startsWith("xlink:")?e.setAttributeNS("http://www.w3.org/1999/xlink",i,t.attributes[i]):e.setAttribute(i,t.attributes[i])}),t.id&&e.setAttribute("id",t.id),t.type==="svg"&&(e.setAttributeNS("http://www.w3.org/2000/xmlns/","xmlns","http://www.w3.org/2000/svg"),e.setAttributeNS("http://www.w3.org/2000/xmlns/","xmlns:xlink","http://www.w3.org/1999/xlink")),t.events&&Object.keys(t.events).forEach(i=>{i.toLowerCase==="onclick"&&(i="click");try{e.addEventListener(i,r=>{new Function("evt","".concat(t.events[i],"(evt)"))(r)})}catch(r){a.log("error","Ui:_uiComposeComponent","Add event '".concat(i,"' for element '").concat(t.type,"': Cannot add event handler. ").concat(r.message))()}}),t.properties&&Object.keys(t.properties).forEach(i=>{e[i]=t.properties[i]}),t.slot&&this.replaceSlot(e,t),t.slotMarkdown&&this.replaceSlotMarkdown(e,t)}uiEnhanceElement(e,t){this._uiComposeComponent(e,t)}_uiExtendEl(e,t,i=""){t.forEach((r,n)=>{a.log("trace","Ui:_uiExtendEl:components-forEach:".concat(n),r)();let s;r.ns=i,r.ns==="html"?(s=e,e.innerHTML=r.slot):r.ns==="svg"?(s=this.document.createElementNS("http://www.w3.org/2000/svg",r.type),this._uiComposeComponent(s,r),e.appendChild(s)):(s=this.document.createElement(r.type==="html"?"div":r.type),this._uiComposeComponent(s,r),e.appendChild(s)),r.components&&this._uiExtendEl(s,r.components,r.ns)})}_uiAdd(e,t){a.log("trace","Ui:_uiManager:add","Starting _uiAdd")(),e.components.forEach((i,r)=>{a.log("trace","Ui:_uiAdd:components-forEach:".concat(r),"Component to add: ",i)();let n;switch(i.type){case"html":{i.ns="html",n=this.document.createElement("div");break}case"svg":{i.ns="svg",n=this.document.createElementNS("http://www.w3.org/2000/svg","svg");break}default:{i.ns="dom",n=this.document.createElement(i.type);break}}!i.slot&&e.payload&&(i.slot=e.payload),this._uiComposeComponent(n,i);let s;i.parentEl?s=i.parentEl:e.parentEl?s=e.parentEl:i.parent?s=this.document.querySelector(i.parent):e.parent&&(s=this.document.querySelector(e.parent)),s||(a.log("info","Ui:_uiAdd","No parent found, adding to body")(),s=this.document.querySelector("body")),i.position&&i.position==="first"?s.insertBefore(n,s.firstChild):i.position&&Number.isInteger(Number(i.position))?s.insertBefore(n,s.children[i.position]):s.appendChild(n),i.components&&this._uiExtendEl(n,i.components,i.ns)})}_uiRemove(e,t=!1){e.components.forEach(i=>{let r;t!==!0?r=[this.document.querySelector(i)]:r=this.document.querySelectorAll(i),r.forEach(n=>{try{n.remove()}catch(s){a.log("trace","Ui:_uiRemove","Could not remove. ".concat(s.message))()}})})}_uiReplace(e){a.log("trace","Ui:_uiReplace","Starting")(),e.components.forEach((t,i)=>{a.log("trace","Ui:_uiReplace:components-forEach:".concat(i),"Component to replace: ",t)();let r;if(t.id?r=this.document.getElementById(t.id):t.selector||t.select?r=this.document.querySelector(t.selector):t.name?r=this.document.querySelector('[name="'.concat(t.name,'"]')):t.type&&(r=this.document.querySelector(t.type)),a.log("trace","Ui:_uiReplace:components-forEach:".concat(i),"Element to replace: ",r)(),r==null){a.log("trace","Ui:_uiReplace:components-forEach:".concat(i,":noReplace"),"Cannot find the DOM element. Adding instead.",t)(),this._uiAdd({components:[t]},!1);return}let n;switch(t.type){case"html":{t.ns="html",n=this.document.createElement("div");break}case"svg":{t.ns="svg",n=this.document.createElementNS("http://www.w3.org/2000/svg","svg");break}default:{t.ns="dom",n=this.document.createElement(t.type);break}}this._uiComposeComponent(n,t),r.replaceWith(n),t.components&&this._uiExtendEl(n,t.components,t.ns)})}_uiUpdate(e){a.log("trace","Ui:_uiManager:update","Starting _uiUpdate")(),e.components||(e.components=[Object.assign({},e)]),e.components.forEach((t,i)=>{a.log("trace","_uiUpdate:components-forEach","Component #".concat(i),t)();let r;if(t.id?r=this.document.querySelectorAll("#".concat(t.id)):t.selector||t.select?r=this.document.querySelectorAll(t.selector):t.name?r=this.document.querySelectorAll('[name="'.concat(t.name,'"]')):t.type&&(r=this.document.querySelectorAll(t.type)),r===void 0||r.length<1){a.log("warn","Ui:_uiManager:update","Cannot find the DOM element. Ignoring.",t)();return}a.log("trace","_uiUpdate:components-forEach","Element(s) to update. Count: ".concat(r.length),r)(),!t.slot&&t.payload&&(t.slot=t.payload),r.forEach(n=>{this._uiComposeComponent(n,t)}),t.components&&r.forEach(n=>{a.log("trace","_uiUpdate:components","el",n)(),this._uiUpdate({method:e.method,parentEl:n,components:t.components})})})}_uiLoad(e){e.components&&(Array.isArray(e.components)||(e.components=[e.components]),e.components.forEach(async t=>{await Promise.resolve().then(()=>y(f(t)))})),e.srcScripts&&(Array.isArray(e.srcScripts)||(e.srcScripts=[e.srcScripts]),e.srcScripts.forEach(t=>{this.loadScriptSrc(t)})),e.txtScripts&&(Array.isArray(e.txtScripts)||(e.txtScripts=[e.txtScripts]),this.loadScriptTxt(e.txtScripts.join("\n"))),e.srcStyles&&(Array.isArray(e.srcStyles)||(e.srcStyles=[e.srcStyles]),e.srcStyles.forEach(t=>{this.loadStyleSrc(t)})),e.txtStyles&&(Array.isArray(e.txtStyles)||(e.txtStyles=[e.txtStyles]),this.loadStyleTxt(e.txtStyles.join("\n")))}_uiReload(){a.log("trace","Ui:uiManager:reload","reloading")(),location.reload()}_uiManager(e){e._ui&&(Array.isArray(e._ui)||(e._ui=[e._ui]),e._ui.forEach((t,i)=>{if(!t.method){a.log("error","Ui:_uiManager","No method defined for msg._ui[".concat(i,"]. Ignoring"))();return}switch(t.payload=e.payload,t.topic=e.topic,t.method){case"add":{this._uiAdd(t,!1);break}case"remove":{this._uiRemove(t,!1);break}case"removeAll":{this._uiRemove(t,!0);break}case"replace":{this._uiReplace(t);break}case"update":{this._uiUpdate(t);break}case"load":{this._uiLoad(t);break}case"reload":{this._uiReload();break}case"notify":{this.showDialog("notify",t,e);break}case"alert":{this.showDialog("alert",t,e);break}default:{a.log("error","Ui:_uiManager","Invalid msg._ui[".concat(i,"].method (").concat(t.method,"). Ignoring"))();break}}}))}nodeGet(e,t){let i={id:e.id===""?void 0:e.id,name:e.name,children:e.childNodes.length,type:e.nodeName,attributes:void 0,isUserInput:!!e.validity,userInput:e.validity?{value:e.value,validity:void 0,willValidate:e.willValidate,valueAsDate:e.valueAsDate,valueAsNumber:e.valueAsNumber,type:e.type}:void 0};if(["UL","OL"].includes(e.nodeName)){let r=this.document.querySelectorAll("".concat(t," li"));r&&(i.list={entries:r.length})}if(e.nodeName==="DL"){let r=this.document.querySelectorAll("".concat(t," dt"));r&&(i.list={entries:r.length})}if(e.nodeName==="TABLE"){let r=this.document.querySelectorAll("".concat(t," > tbody > tr")),n=this.document.querySelectorAll("".concat(t," > thead > tr")),s=this.document.querySelectorAll("".concat(t," > tbody > tr:last-child > *"));(r||n||s)&&(i.table={headRows:n?n.length:0,bodyRows:r?r.length:0,columns:s?s.length:0})}if(e.nodeName!=="#text"&&e.attributes&&e.attributes.length>0){i.attributes={};for(let r of e.attributes)r.name!=="id"&&(i.attributes[r.name]=e.attributes[r.name].value)}e.nodeName==="#text"&&(i.text=e.textContent),e.validity&&(i.userInput.validity={});for(let r in e.validity)i.userInput.validity[r]=e.validity[r];return i}uiGet(e,t=null){let i=this.document.querySelectorAll(e),r=[];return i.forEach(n=>{if(t!==null&&t!==""){let s=n.getAttribute(t);if(s==null)try{s=n[t]}catch{}if(s==null)t.toLowerCase()==="value"?r.push(n.innerText):r.push("Property '".concat(t,"' not found"));else if(s.constructor.name==="NamedNodeMap"){let c={};for(let o of s)c[o.name]=s[o.name].value;r.push(c)}else if(!s.constructor.name.toLowerCase().includes("map"))r.push({[t]:s});else{let c={};for(let o in s)c[o]=s[o];r.push(c)}}else r.push(this.nodeGet(n,e))}),r}async include(e,t){if(!fetch)return a.log(0,"Ui:include","Current environment does not include `fetch`, skipping.")(),"Current environment does not include `fetch`, skipping.";if(!e)return a.log(0,"Ui:include","url parameter must be provided, skipping.")(),"url parameter must be provided, skipping.";if(!t||!t.id)return a.log(0,"Ui:include","uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.")(),"uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.";let i;try{i=await fetch(e)}catch(h){return a.log(0,"Ui:include","Fetch of file '".concat(e,"' failed. "),h.message)(),h.message}if(!i.ok)return a.log(0,"Ui:include","Fetch of file '".concat(e,"' failed. Status='").concat(i.statusText,"'"))(),i.statusText;let r=await i.headers.get("content-type"),n=null;r&&(r.includes("text/html")?n="html":r.includes("application/json")?n="json":r.includes("multipart/form-data")?n="form":r.includes("image/")?n="image":r.includes("video/")?n="video":r.includes("application/pdf")?n="pdf":r.includes("text/plain")&&(n="text"));let s="",c="Include successful",o;switch(n){case"html":{o=await i.text(),s=o;break}case"json":{o=await i.json(),s='<pre class="syntax-highlight">',s+=this.syntaxHighlight(o),s+="</pre>";break}case"form":{o=await i.formData(),s='<pre class="syntax-highlight">',s+=this.syntaxHighlight(o),s+="</pre>";break}case"image":{o=await i.blob(),s='<img src="'.concat(URL.createObjectURL(o),'">'),this.window.DOMPurify&&(c="Include successful. BUT DOMPurify loaded which may block its use.",a.log("warn","Ui:include:image",c)());break}case"video":{o=await i.blob(),s='<video controls autoplay><source src="'.concat(URL.createObjectURL(o),'"></video>'),this.window.DOMPurify&&(c="Include successful. BUT DOMPurify loaded which may block its use.",a.log("warn","Ui:include:video",c)());break}case"pdf":case"text":default:{o=await i.blob(),s='<iframe style="resize:both;width:inherit;height:inherit;" src="'.concat(URL.createObjectURL(o),'">'),this.window.DOMPurify&&(c="Include successful. BUT DOMPurify loaded which may block its use.",a.log("warn","Ui:include:".concat(n),c)());break}}return t.type="div",t.slot=s,t.parent||(t.parent="body"),t.attributes||(t.attributes={class:"included"}),this._uiReplace({components:[t]}),a.log("trace","Ui:include:".concat(n),c)(),c}},u(a,"log"),a);w.exports=x});export default C();
 //# sourceMappingURL=ui.esm.min.js.map
diff --git a/front-end/ui.esm.min.js.map b/front-end/ui.esm.min.js.map
index cdb1266c..3706e734 100644
--- a/front-end/ui.esm.min.js.map
+++ b/front-end/ui.esm.min.js.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
   "sources": ["src/front-end-module/ui.js"],
-  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\nconst Ui = class Ui {\n    version = '6.6.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        this._uiManager(msg)\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += msg.payload\n        if (ui.content) content += ui.content\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    // Namespaces - See https://stackoverflow.com/a/52572048/1309986\n    // const NAMESPACES = {\n    //     svg: 'http://www.w3.org/2000/svg',\n    //     html: 'http://www.w3.org/1999/xhtml',\n    //     xml: 'http://www.w3.org/XML/1998/namespace',\n    //     xlink: 'http://www.w3.org/1999/xlink',\n    //     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n    // }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n\n    } // --- end of _uiManager ---\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName !== null && propName !== '') {\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    // Nightmare of different object types in a DOM Element!\n                    if (prop.constructor.name === 'NamedNodeMap') { // Attributes\n                        const p = {}\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                        out.push(p)\n                    } else if (!prop.constructor.name.toLowerCase().includes('map')) { // Ordinary properties\n                        out.push({\n                            [propName]: prop\n                        })\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                        out.push(p)\n                    }\n                }\n\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n"],
+  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        this._uiManager(msg)\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += msg.payload\n        if (ui.content) content += ui.content\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    // Namespaces - See https://stackoverflow.com/a/52572048/1309986\n    // const NAMESPACES = {\n    //     svg: 'http://www.w3.org/2000/svg',\n    //     html: 'http://www.w3.org/1999/xhtml',\n    //     xml: 'http://www.w3.org/XML/1998/namespace',\n    //     xlink: 'http://www.w3.org/1999/xlink',\n    //     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n    // }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). 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BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n"],
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   "names": ["require_ui", "__commonJSMin", "exports", "module", "_a", "Ui", "win", "extLog", "jsonHighlight", "__publicField", "json", "msg", "el", "component", "mdText", "opts", "str", "lang", "md", "html", "url", "newScript", "newStyle", "textFn", "type", "ui", "content", "toaster", "toast", "evt", "config", "notify", "resolve", "reject", "ev", "permit", "response", "contentType", "data", "err", "comp", "attrib", "prop", "parentEl", "components", "ns", "compToAdd", "i", "newEl", "isRecurse", "elParent", "all", "compToRemove", "els", "compToReplace", "elToReplace", "compToUpd", "elToUpd", "__toESM", "__require", "script", "sheet", "node", "cssSelector", "thisOut", "listEntries", "bodyEntries", "headEntries", "cols", "v", "propName", "selection", "out", "p", "key", "uiOptions", "error", "slot", "txtReturn"]
 }
diff --git a/front-end/ui.iife.js b/front-end/ui.iife.js
index 8c194816..361bf390 100644
--- a/front-end/ui.iife.js
+++ b/front-end/ui.iife.js
@@ -21,7 +21,7 @@
          * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input
          */
         constructor(win, extLog, jsonHighlight) {
-          __publicField(this, "version", "6.6.0-src");
+          __publicField(this, "version", "6.8.0-src");
           // List of tags and attributes not in sanitise defaults but allowed in uibuilder.
           __publicField(this, "sanitiseExtraTags", ["uib-var"]);
           __publicField(this, "sanitiseExtraAttribs", ["variable", "report", "undefined"]);
diff --git a/front-end/ui.iife.min.js b/front-end/ui.iife.min.js
index 2d447c67..e894c476 100644
--- a/front-end/ui.iife.min.js
+++ b/front-end/ui.iife.min.js
@@ -1,2 +1,2 @@
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").concat(r.message))()}}),t.properties&&Object.keys(t.properties).forEach(i=>{e[i]=t.properties[i]}),t.slot&&this.replaceSlot(e,t),t.slotMarkdown&&this.replaceSlotMarkdown(e,t)}uiEnhanceElement(e,t){this._uiComposeComponent(e,t)}_uiExtendEl(e,t,i=""){t.forEach((r,n)=>{a.log("trace","Ui:_uiExtendEl:components-forEach:".concat(n),r)();let s;r.ns=i,r.ns==="html"?(s=e,e.innerHTML=r.slot):r.ns==="svg"?(s=this.document.createElementNS("http://www.w3.org/2000/svg",r.type),this._uiComposeComponent(s,r),e.appendChild(s)):(s=this.document.createElement(r.type==="html"?"div":r.type),this._uiComposeComponent(s,r),e.appendChild(s)),r.components&&this._uiExtendEl(s,r.components,r.ns)})}_uiAdd(e,t){a.log("trace","Ui:_uiManager:add","Starting _uiAdd")(),e.components.forEach((i,r)=>{a.log("trace","Ui:_uiAdd:components-forEach:".concat(r),"Component to add: ",i)();let n;switch(i.type){case"html":{i.ns="html",n=this.document.createElement("div");break}case"svg":{i.ns="svg",n=this.document.createElementNS("http://www.w3.org/2000/svg","svg");break}default:{i.ns="dom",n=this.document.createElement(i.type);break}}!i.slot&&e.payload&&(i.slot=e.payload),this._uiComposeComponent(n,i);let s;i.parentEl?s=i.parentEl:e.parentEl?s=e.parentEl:i.parent?s=this.document.querySelector(i.parent):e.parent&&(s=this.document.querySelector(e.parent)),s||(a.log("info","Ui:_uiAdd","No parent found, adding to body")(),s=this.document.querySelector("body")),i.position&&i.position==="first"?s.insertBefore(n,s.firstChild):i.position&&Number.isInteger(Number(i.position))?s.insertBefore(n,s.children[i.position]):s.appendChild(n),i.components&&this._uiExtendEl(n,i.components,i.ns)})}_uiRemove(e,t=!1){e.components.forEach(i=>{let r;t!==!0?r=[this.document.querySelector(i)]:r=this.document.querySelectorAll(i),r.forEach(n=>{try{n.remove()}catch(s){a.log("trace","Ui:_uiRemove","Could not remove. ".concat(s.message))()}})})}_uiReplace(e){a.log("trace","Ui:_uiReplace","Starting")(),e.components.forEach((t,i)=>{a.log("trace","Ui:_uiReplace:components-forEach:".concat(i),"Component to replace: ",t)();let r;if(t.id?r=this.document.getElementById(t.id):t.selector||t.select?r=this.document.querySelector(t.selector):t.name?r=this.document.querySelector('[name="'.concat(t.name,'"]')):t.type&&(r=this.document.querySelector(t.type)),a.log("trace","Ui:_uiReplace:components-forEach:".concat(i),"Element to replace: ",r)(),r==null){a.log("trace","Ui:_uiReplace:components-forEach:".concat(i,":noReplace"),"Cannot find the DOM element. 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Ignoring"))();return}switch(t.payload=e.payload,t.topic=e.topic,t.method){case"add":{this._uiAdd(t,!1);break}case"remove":{this._uiRemove(t,!1);break}case"removeAll":{this._uiRemove(t,!0);break}case"replace":{this._uiReplace(t);break}case"update":{this._uiUpdate(t);break}case"load":{this._uiLoad(t);break}case"reload":{this._uiReload();break}case"notify":{this.showDialog("notify",t,e);break}case"alert":{this.showDialog("alert",t,e);break}default:{a.log("error","Ui:_uiManager","Invalid msg._ui[".concat(i,"].method (").concat(t.method,"). Ignoring"))();break}}}))}nodeGet(e,t){let i={id:e.id===""?void 0:e.id,name:e.name,children:e.childNodes.length,type:e.nodeName,attributes:void 0,isUserInput:!!e.validity,userInput:e.validity?{value:e.value,validity:void 0,willValidate:e.willValidate,valueAsDate:e.valueAsDate,valueAsNumber:e.valueAsNumber,type:e.type}:void 0};if(["UL","OL"].includes(e.nodeName)){let r=this.document.querySelectorAll("".concat(t," li"));r&&(i.list={entries:r.length})}if(e.nodeName==="DL"){let r=this.document.querySelectorAll("".concat(t," dt"));r&&(i.list={entries:r.length})}if(e.nodeName==="TABLE"){let r=this.document.querySelectorAll("".concat(t," > tbody > tr")),n=this.document.querySelectorAll("".concat(t," > thead > tr")),s=this.document.querySelectorAll("".concat(t," > tbody > tr:last-child > *"));(r||n||s)&&(i.table={headRows:n?n.length:0,bodyRows:r?r.length:0,columns:s?s.length:0})}if(e.nodeName!=="#text"&&e.attributes&&e.attributes.length>0){i.attributes={};for(let r of e.attributes)r.name!=="id"&&(i.attributes[r.name]=e.attributes[r.name].value)}e.nodeName==="#text"&&(i.text=e.textContent),e.validity&&(i.userInput.validity={});for(let r in e.validity)i.userInput.validity[r]=e.validity[r];return i}uiGet(e,t=null){let i=this.document.querySelectorAll(e),r=[];return i.forEach(n=>{if(t!==null&&t!==""){let s=n.getAttribute(t);if(s==null)try{s=n[t]}catch{}if(s==null)t.toLowerCase()==="value"?r.push(n.innerText):r.push("Property '".concat(t,"' not found"));else if(s.constructor.name==="NamedNodeMap"){let c={};for(let o of s)c[o.name]=s[o.name].value;r.push(c)}else if(!s.constructor.name.toLowerCase().includes("map"))r.push({[t]:s});else{let c={};for(let o in s)c[o]=s[o];r.push(c)}}else r.push(this.nodeGet(n,e))}),r}async include(e,t){if(!fetch)return a.log(0,"Ui:include","Current environment does not include `fetch`, skipping.")(),"Current environment does not include `fetch`, skipping.";if(!e)return a.log(0,"Ui:include","url parameter must be provided, skipping.")(),"url parameter must be provided, skipping.";if(!t||!t.id)return a.log(0,"Ui:include","uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.")(),"uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.";let i;try{i=await fetch(e)}catch(h){return a.log(0,"Ui:include","Fetch of file '".concat(e,"' failed. "),h.message)(),h.message}if(!i.ok)return a.log(0,"Ui:include","Fetch of file '".concat(e,"' failed. Status='").concat(i.statusText,"'"))(),i.statusText;let r=await i.headers.get("content-type"),n=null;r&&(r.includes("text/html")?n="html":r.includes("application/json")?n="json":r.includes("multipart/form-data")?n="form":r.includes("image/")?n="image":r.includes("video/")?n="video":r.includes("application/pdf")?n="pdf":r.includes("text/plain")&&(n="text"));let s="",c="Include successful",o;switch(n){case"html":{o=await i.text(),s=o;break}case"json":{o=await i.json(),s='<pre class="syntax-highlight">',s+=this.syntaxHighlight(o),s+="</pre>";break}case"form":{o=await i.formData(),s='<pre class="syntax-highlight">',s+=this.syntaxHighlight(o),s+="</pre>";break}case"image":{o=await i.blob(),s='<img src="'.concat(URL.createObjectURL(o),'">'),this.window.DOMPurify&&(c="Include successful. BUT DOMPurify loaded which may block its use.",a.log("warn","Ui:include:image",c)());break}case"video":{o=await i.blob(),s='<video controls autoplay><source src="'.concat(URL.createObjectURL(o),'"></video>'),this.window.DOMPurify&&(c="Include successful. BUT DOMPurify loaded which may block its use.",a.log("warn","Ui:include:video",c)());break}case"pdf":case"text":default:{o=await i.blob(),s='<iframe style="resize:both;width:inherit;height:inherit;" src="'.concat(URL.createObjectURL(o),'">'),this.window.DOMPurify&&(c="Include successful. BUT DOMPurify loaded which may block its use.",a.log("warn","Ui:include:".concat(n),c)());break}}return t.type="div",t.slot=s,t.parent||(t.parent="body"),t.attributes||(t.attributes={class:"included"}),this._uiReplace({components:[t]}),a.log("trace","Ui:include:".concat(n),c)(),c}},u(a,"log"),a);w.exports=x});C();})();
 //# sourceMappingURL=ui.iife.min.js.map
diff --git a/front-end/ui.iife.min.js.map b/front-end/ui.iife.min.js.map
index fef37de3..3a8c2035 100644
--- a/front-end/ui.iife.min.js.map
+++ b/front-end/ui.iife.min.js.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
   "sources": ["src/front-end-module/ui.js"],
-  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\nconst Ui = class Ui {\n    version = '6.6.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        this._uiManager(msg)\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += msg.payload\n        if (ui.content) content += ui.content\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    // Namespaces - See https://stackoverflow.com/a/52572048/1309986\n    // const NAMESPACES = {\n    //     svg: 'http://www.w3.org/2000/svg',\n    //     html: 'http://www.w3.org/1999/xhtml',\n    //     xml: 'http://www.w3.org/XML/1998/namespace',\n    //     xlink: 'http://www.w3.org/1999/xlink',\n    //     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n    // }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n\n    } // --- end of _uiManager ---\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName !== null && propName !== '') {\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    // Nightmare of different object types in a DOM Element!\n                    if (prop.constructor.name === 'NamedNodeMap') { // Attributes\n                        const p = {}\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                        out.push(p)\n                    } else if (!prop.constructor.name.toLowerCase().includes('map')) { // Ordinary properties\n                        out.push({\n                            [propName]: prop\n                        })\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                        out.push(p)\n                    }\n                }\n\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n"],
+  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        this._uiManager(msg)\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += msg.payload\n        if (ui.content) content += ui.content\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    // Namespaces - See https://stackoverflow.com/a/52572048/1309986\n    // const NAMESPACES = {\n    //     svg: 'http://www.w3.org/2000/svg',\n    //     html: 'http://www.w3.org/1999/xhtml',\n    //     xml: 'http://www.w3.org/XML/1998/namespace',\n    //     xlink: 'http://www.w3.org/1999/xlink',\n    //     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n    // }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n\n    } // --- end of _uiManager ---\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName !== null && propName !== '') {\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    // Nightmare of different object types in a DOM Element!\n                    if (prop.constructor.name === 'NamedNodeMap') { // Attributes\n                        const p = {}\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                        out.push(p)\n                    } else if (!prop.constructor.name.toLowerCase().includes('map')) { // Ordinary properties\n                        out.push({\n                            [propName]: prop\n                        })\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                        out.push(p)\n                    }\n                }\n\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n"],
   "mappings": 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   "names": ["require_ui", "__commonJSMin", "exports", "module", "_a", "Ui", "win", "extLog", "jsonHighlight", "__publicField", "json", "msg", "el", "component", "mdText", "opts", "str", "lang", "md", "html", "url", "newScript", "newStyle", "textFn", "type", "ui", "content", "toaster", "toast", "evt", "config", "notify", "resolve", "reject", "ev", "permit", "response", "contentType", "data", "err", "comp", "attrib", "prop", "parentEl", "components", "ns", "compToAdd", "i", "newEl", "isRecurse", "elParent", "all", "compToRemove", "els", "compToReplace", "elToReplace", "compToUpd", "elToUpd", "__toESM", "__require", "script", "sheet", "node", "cssSelector", "thisOut", "listEntries", "bodyEntries", "headEntries", "cols", "v", "propName", "selection", "out", "p", "key", "uiOptions", "error", "slot", "txtReturn"]
 }
diff --git a/nodes/libs/ui.js b/nodes/libs/ui.js
index f3bda152..668213ea 100644
--- a/nodes/libs/ui.js
+++ b/nodes/libs/ui.js
@@ -1,5 +1,5 @@
 const Ui = class Ui2 {
-  version = "6.6.0-node";
+  version = "6.8.0-node";
   // List of tags and attributes not in sanitise defaults but allowed in uibuilder.
   sanitiseExtraTags = ["uib-var"];
   sanitiseExtraAttribs = ["variable", "report", "undefined"];
diff --git a/package-lock.json b/package-lock.json
index 7da588f7..1d7a28a7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "node-red-contrib-uibuilder",
-  "version": "6.7.0",
+  "version": "6.8.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
@@ -10473,4 +10473,4 @@
       }
     }
   }
-}
\ No newline at end of file
+}
diff --git a/package.json b/package.json
index 288bdc06..54b79434 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "node-red-contrib-uibuilder",
-  "version": "6.7.0",
+  "version": "6.8.0",
   "description": "Easily create data-driven web UI's for Node-RED using any (or no) front-end library.",
   "scripts": {
     "preinstall": "node ./bin/uibpreinstalljs",
@@ -145,4 +145,4 @@
     "type": "git",
     "url": "https://github.com/TotallyInformation/node-red-contrib-uibuilder"
   }
-}
\ No newline at end of file
+}
diff --git a/src/front-end-module/ui.js b/src/front-end-module/ui.js
index 48398466..412dffc6 100644
--- a/src/front-end-module/ui.js
+++ b/src/front-end-module/ui.js
@@ -22,7 +22,7 @@
 /* globals module:true */
 
 const Ui = class Ui {
-    version = '6.6.0-src'
+    version = '6.8.0-src'
 
     // List of tags and attributes not in sanitise defaults but allowed in uibuilder.
     sanitiseExtraTags = ['uib-var']

From 27356c271d3668192781bb9f4c561d5703badbfa Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Fri, 24 Nov 2023 19:43:13 +0000
Subject: [PATCH 03/78] Bump version to 1.0.1

---
 front-end/utils/uibrouter.esm.js          | 2 +-
 front-end/utils/uibrouter.esm.min.js      | 2 +-
 front-end/utils/uibrouter.esm.min.js.map  | 2 +-
 front-end/utils/uibrouter.iife.js         | 2 +-
 front-end/utils/uibrouter.iife.min.js     | 2 +-
 front-end/utils/uibrouter.iife.min.js.map | 2 +-
 src/front-end-module/uibrouter.js         | 2 +-
 7 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/front-end/utils/uibrouter.esm.js b/front-end/utils/uibrouter.esm.js
index 675b01ba..94a0c769 100644
--- a/front-end/utils/uibrouter.esm.js
+++ b/front-end/utils/uibrouter.esm.js
@@ -326,7 +326,7 @@ _startDone = new WeakMap();
 // eslint-disable-line no-unused-vars
 //#region --- Variables ---
 /** Class version */
-__publicField(UibRouter, "version", "1.0.0");
+__publicField(UibRouter, "version", "1.0.1");
 var uibrouter_default = UibRouter;
 if (!window["UibRouter"]) {
   window["UibRouter"] = UibRouter;
diff --git a/front-end/utils/uibrouter.esm.min.js b/front-end/utils/uibrouter.esm.min.js
index d5271010..ee3c7214 100644
--- a/front-end/utils/uibrouter.esm.min.js
+++ b/front-end/utils/uibrouter.esm.min.js
@@ -1,3 +1,3 @@
 var b=Object.defineProperty;var w=(n,e,t)=>e in n?b(n,e,{enumerable:!0,configurable:!0,writable:!0,value:t}):n[e]=t;var u=(n,e,t)=>(w(n,typeof e!="symbol"?e+"":e,t),t),h=(n,e,t)=>{if(!e.has(n))throw TypeError("Cannot "+t)};var f=(n,e,t)=>(h(n,e,"read from private field"),t?t.call(n):e.get(n)),p=(n,e,t)=>{if(e.has(n))throw TypeError("Cannot add the same private member more than once");e instanceof WeakSet?e.add(n):e.set(n,t)},m=(n,e,t,r)=>(h(n,e,"write to private field"),r?r.call(n,t):e.set(n,t),t);var d,s=class{constructor(e){u(this,"config");u(this,"routeContainerEl");u(this,"currentRouteId");u(this,"previousRouteId");p(this,d,!1);if(!fetch)throw new Error("[uibrouter:constructor] UibRouter requires `fetch`. Please use a current browser or load a fetch polyfill.");if(!e)throw new Error("[uibrouter:constructor] No config provided");if(!e.routes)throw new Error("[uibrouter:constructor] No routes provided in routerConfig");e.routeContainer||(e.routeContainer="#uibroutecontainer"),this.config=e,this._setRouteContainer(),Promise.all(Object.values(e.routes).filter(t=>t.type==="url").map(this._loadExternal)).then(this._appendExternalTemplates).then(()=>{this._start()})}_setRouteContainer(){let e=document.getElementsByTagName("body")[0],t=this.routeContainerEl=document.querySelector(this.config.routeContainer);if(!t){let r=document.createElement("div");r.setAttribute("id",this.config.routeContainer.replace("#","")),e.append(r),t=this.routeContainerEl=document.querySelector(this.config.routeContainer)}}_appendExternalTemplates(e){let t=document.getElementsByTagName("head")[0];e.forEach(r=>{Array.isArray(r)?console.error(...r):t.append(r)})}_start(){f(this,d)!==!0&&(window.addEventListener("hashchange",e=>this._hashChange(e)),this.doRoute(),document.dispatchEvent(new CustomEvent("uibrouter:loaded")),uibuilder&&uibuilder.set("uibrouter","loaded"),m(this,d,!0))}_hashChange(e){this.doRoute(e)}_createRouteContent(e){let t=document.querySelector(`#${e}`);if(!t)return console.error(`[uibrouter:createRouteContent] No route template found for route selector '#${e}'. Does the link url match a defined route id?`),!1;let r=t.content.cloneNode(!0);this.isRouteExternal(e)&&this._applyScripts(r);let o=document.createElement("div");o.dataset.route=e,o.append(r);try{this.routeContainerEl.append(o)}catch(i){return console.error(`[uibrouter:createRouteContent] Failed to apply route id '${e}'. 
- ${i.message}`),!1}return!0}_loadExternal(e){let t=e.id;return fetch(e.src).then(r=>r.ok===!1?[e.id,e.src,r.status,r.statusText]:r.text()).then(r=>{if(Array.isArray(r))return r;try{let i=document.querySelector(`#${t}`);i&&i.remove()}catch{}let o=document.createElement("template");return o.innerHTML=r,o.setAttribute("id",t),o}).catch(r=>{console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${e.src}:`,r)})}_applyScripts(e){e.querySelectorAll("script").forEach(r=>{let o=document.createElement("script");o.textContent=r.innerText,e.append(o),r.remove()})}doRoute(e){let t=this.routeContainerEl;if(!t)throw new Error("[uibrouter:doRoute] Cannot route, has router.setup() been called yet?");let r=this.keepHashFromUrl(window.location.hash);e||(e=r);let o,i;if(typeof e=="string"){if(o=this.keepHashFromUrl(e),i=r,o===""&&this.config.defaultRoute&&(o=this.config.defaultRoute),o!==r){window.location.hash=`#${o}`;return}}else if(e.type==="hashchange"){let a=e.newURL;if(a.includes("#"))i=this.keepHashFromUrl(e.oldURL),o=this.keepHashFromUrl(a);else return}else{i=r;try{o=this.keepHashFromUrl(e.target.attributes.href.value)}catch{throw new Error("[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute")}}let l=!1;if(!o||!this.routeList().includes(o))throw document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:i}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=i?`#${i}`:"",new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${o}'`);if(this.config.hide){if(i){let c=document.querySelector(`div[data-route="${i}"]`);c&&(c.style.display="none")}let a=document.querySelector(`div[data-route="${o}"]`);a?(a.style.removeProperty("display"),l=!0):l=this._createRouteContent(o)}else t.replaceChildren(),l=this._createRouteContent(o);if(l===!1){document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:i}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=i?`#${i}`:"";return}this.currentRouteId=o,this.previousRouteId=i,t.dataset.currentRoute=o,document.dispatchEvent(new CustomEvent("uibrouter:route-changed",{detail:{newRouteId:o,oldRouteId:i}})),uibuilder&&uibuilder.set("uibrouter","route changed")}getRouteConfigById(e){return Object.values(this.config.routes).filter(t=>t.id===e)[0]}isRouteExternal(e){let t=this.getRouteConfigById(e);return!!(t&&t.type==="url")}defaultRoute(){this.config.defaultRoute&&this.doRoute(this.config.defaultRoute)}removeHash(){history.pushState("",document.title,window.location.pathname+window.location.search)}noRoute(){this.removeHash(),this.routeContainerEl.replaceChildren()}keepHashFromUrl(e){return e?e.replace(/^.*#(.*)/,"$1").replace(/\?.*$/,""):""}routeList(e){return Object.values(this.config.routes).map(t=>e===!0?`#${t.id}`:t.id)}addRoutes(e){Array.isArray(e)||(e=[e]),Promise.all(Object.values(e).filter(t=>t.type==="url").map(this._loadExternal)).then(this._appendExternalTemplates).then(()=>{this.config.routes.push(...e),document.dispatchEvent(new CustomEvent("uibrouter:routes-added",{detail:e})),uibuilder&&uibuilder.set("uibrouter","routes added")})}};d=new WeakMap,u(s,"version","1.0.0");var y=s;window.UibRouter?console.warn("`UibRouter` already assigned to window. Have you tried to load it more than once?"):window.UibRouter=s;export{s as UibRouter,y as default};
+ ${i.message}`),!1}return!0}_loadExternal(e){let t=e.id;return fetch(e.src).then(r=>r.ok===!1?[e.id,e.src,r.status,r.statusText]:r.text()).then(r=>{if(Array.isArray(r))return r;try{let i=document.querySelector(`#${t}`);i&&i.remove()}catch{}let o=document.createElement("template");return o.innerHTML=r,o.setAttribute("id",t),o}).catch(r=>{console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${e.src}:`,r)})}_applyScripts(e){e.querySelectorAll("script").forEach(r=>{let o=document.createElement("script");o.textContent=r.innerText,e.append(o),r.remove()})}doRoute(e){let t=this.routeContainerEl;if(!t)throw new Error("[uibrouter:doRoute] Cannot route, has router.setup() been called yet?");let r=this.keepHashFromUrl(window.location.hash);e||(e=r);let o,i;if(typeof e=="string"){if(o=this.keepHashFromUrl(e),i=r,o===""&&this.config.defaultRoute&&(o=this.config.defaultRoute),o!==r){window.location.hash=`#${o}`;return}}else if(e.type==="hashchange"){let a=e.newURL;if(a.includes("#"))i=this.keepHashFromUrl(e.oldURL),o=this.keepHashFromUrl(a);else return}else{i=r;try{o=this.keepHashFromUrl(e.target.attributes.href.value)}catch{throw new Error("[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute")}}let l=!1;if(!o||!this.routeList().includes(o))throw document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:i}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=i?`#${i}`:"",new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${o}'`);if(this.config.hide){if(i){let c=document.querySelector(`div[data-route="${i}"]`);c&&(c.style.display="none")}let a=document.querySelector(`div[data-route="${o}"]`);a?(a.style.removeProperty("display"),l=!0):l=this._createRouteContent(o)}else t.replaceChildren(),l=this._createRouteContent(o);if(l===!1){document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:i}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=i?`#${i}`:"";return}this.currentRouteId=o,this.previousRouteId=i,t.dataset.currentRoute=o,document.dispatchEvent(new CustomEvent("uibrouter:route-changed",{detail:{newRouteId:o,oldRouteId:i}})),uibuilder&&uibuilder.set("uibrouter","route changed")}getRouteConfigById(e){return Object.values(this.config.routes).filter(t=>t.id===e)[0]}isRouteExternal(e){let t=this.getRouteConfigById(e);return!!(t&&t.type==="url")}defaultRoute(){this.config.defaultRoute&&this.doRoute(this.config.defaultRoute)}removeHash(){history.pushState("",document.title,window.location.pathname+window.location.search)}noRoute(){this.removeHash(),this.routeContainerEl.replaceChildren()}keepHashFromUrl(e){return e?e.replace(/^.*#(.*)/,"$1").replace(/\?.*$/,""):""}routeList(e){return Object.values(this.config.routes).map(t=>e===!0?`#${t.id}`:t.id)}addRoutes(e){Array.isArray(e)||(e=[e]),Promise.all(Object.values(e).filter(t=>t.type==="url").map(this._loadExternal)).then(this._appendExternalTemplates).then(()=>{this.config.routes.push(...e),document.dispatchEvent(new CustomEvent("uibrouter:routes-added",{detail:e})),uibuilder&&uibuilder.set("uibrouter","routes added")})}};d=new WeakMap,u(s,"version","1.0.1");var y=s;window.UibRouter?console.warn("`UibRouter` already assigned to window. Have you tried to load it more than once?"):window.UibRouter=s;export{s as UibRouter,y as default};
 //# sourceMappingURL=uibrouter.esm.min.js.map
diff --git a/front-end/utils/uibrouter.esm.min.js.map b/front-end/utils/uibrouter.esm.min.js.map
index d5501547..57cb3d4e 100644
--- a/front-end/utils/uibrouter.esm.min.js.map
+++ b/front-end/utils/uibrouter.esm.min.js.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
   "sources": ["src/front-end-module/uibrouter.js"],
-  "sourcesContent": ["// @ts-nocheck\n/** A simple, vanilla JavaScript front-end router class\n * Included in node-red-contrib-uibuilder but is not dependent on it.\n * May be used in other contexts as desired.\n * \n * Copyright (c) 2023-2023 Julian Knight (Totally Information)\n * https://it.knightnet.org.uk\n *\n * Licensed under the Apache License, Version 2.0 (the 'License');\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an 'AS IS' BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/** ---------------------------------------------------------------------\n * TODO\n * Methods needed:\n *   Delete route\n *   Update/reload route\n *   shutdown - that removes all elements\n *   delete templates - unloads a list of (or all) templates\n *   reload templates - to facilitate updates of a list of (or all) templates\n * Additional options:\n *   unload templates after they are added to the route container. Only if hide=true. `unload: true`\n *   Maybe: options to auto-load js and css files with the same name as a template file.\n * ---------------------------------------------------------------------  */\n\n/** Type definitions\n * routeConfig\n * @typedef {object} routeDefinition Single route configuration\n * @property {string} id REQUIRED. Route ID\n * @property {string} src REQUIRED. CSS Selector for template tag routes, url for external routes\n * @property {\"url\"|undefined} [type] OPTIONAL. \"url\" for external routes\n * UibRouterConfig\n * @typedef {object} UibRouterConfig Configuration for the UiBRouter class instances\n * @property {routeDefinition[]} routes REQUIRED. Array of route definitions\n * @property {string} [defaultRoute] OPTIONAL. If set to a route id, that route will be automatically shown on load\n * @property {string} [routeContainer] OPTIONAL. CSS Selector for an HTML Element containing routes\n * @property {boolean} [hide] OPTIONAL. If TRUE, routes will be hidden/shown on change instead of removed/added\n * @property {boolean} [unload] OPTIONAL. If TRUE, route templates will be unloaded from DOM after access. Only useful with the `hide` option\n */\n\nclass UibRouter { // eslint-disable-line no-unused-vars\n    //#region --- Variables ---\n    /** Class version */\n    static version = '1.0.0'\n\n    /** Configuration settings @type {UibRouterConfig} */\n    config\n    /** Reference to the container DOM element - set in setup() @type {HTMLDivElement} */\n    routeContainerEl\n    /** The current route id after doRoute() has been called */\n    currentRouteId\n    /** The previous route id after doRoute() has been called */\n    previousRouteId\n\n    /** Internal only. Set to true when the _start() method has been called */\n    #startDone = false\n    //#endregion --- ----- ---\n\n    //#region --- Internal Methods ---\n    /** Class constructor\n     * @param {UibRouterConfig} routerConfig Configuration object\n     */\n    constructor(routerConfig) {\n        // Fetch is on desktop browsers since 2017 at latest. Not so much on mobile (Android!)\n        // May need a polyfill on mobile or old browsers.\n        if (!fetch) throw new Error('[uibrouter:constructor] UibRouter requires `fetch`. Please use a current browser or load a fetch polyfill.')\n\n        if (!routerConfig) throw new Error('[uibrouter:constructor] No config provided')\n        if (!routerConfig.routes) throw new Error('[uibrouter:constructor] No routes provided in routerConfig')\n        // Add a default route container uf needed\n        if (!routerConfig.routeContainer)routerConfig.routeContainer = '#uibroutecontainer'\n\n        // Save the config\n        this.config = routerConfig\n        // Create/access the route container element, sets this.routeContainerEl\n        this._setRouteContainer()\n\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routerConfig.routes).filter(r => r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded so we can start\n                this._start()\n            } )\n    }\n\n    /** Save a reference to, and create if necessary, the HTML element to hold routes */\n    _setRouteContainer() {\n        const body = document.getElementsByTagName('body')[0]\n        // Get reference to route container or create it\n        let routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        if (!routeContainerEl) {\n            // throw new Error(`Route container element with CSS selector '${routerConfig.routeContainer}' not found in HTML`)\n            const tempContainer = document.createElement('div')\n            tempContainer.setAttribute('id', this.config.routeContainer.replace('#', ''))\n            body.append(tempContainer)\n            routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        }\n    }\n\n    /** Load fetched external elements to templates tags under the head tag\n     * @param {HTMLElement[]} loadedElements Array of loaded external elements to add as templates to the head tag\n     */\n    _appendExternalTemplates(loadedElements) {\n        const head = document.getElementsByTagName('head')[0]\n        // Append the loaded content to the main container\n        loadedElements.forEach(element => {\n            if (Array.isArray(element)) {\n                console.error(...element)\n            } else {\n                head.append(element)\n            }\n        })\n    }\n\n    /** Called once all external templates have been loaded */\n    _start() {\n        if (this.#startDone === true) return // Don't run this again\n\n        // Listen for url hash changes and process route change\n        window.addEventListener('hashchange', (event) => this._hashChange(event) )\n        // Go to default route if no route in url and if a default is defined or ensure current route is shown\n        this.doRoute()\n        // Events on fully loaded ...\n        document.dispatchEvent(new CustomEvent('uibrouter:loaded'))\n        if (uibuilder) uibuilder.set('uibrouter', 'loaded') // eslint-disable-line no-undef\n\n        this.#startDone = true // Don't run this again\n    }\n\n    /** Called when the URL Hash changes\n     * @param {HashChangeEvent} event URL Hash change event object\n     */\n    _hashChange(event) {\n        // console.log(`[uibrouter] hashchange: ${this.keepHashFromUrl(event.oldURL)} => ${this.keepHashFromUrl(event.newURL)}` )\n        this.doRoute(event)\n    }\n\n    /** Create DOM route content from a route template (internal or external)\n     * Route templates have to be a `<template>` tag with an ID that matches the route id.\n     * @param {string} routeId ID of the route definition to use to create the content\n     * @returns {boolean} True if the route content was created successfully, false otherwise\n     */\n    _createRouteContent(routeId) {\n        const rContent = document.querySelector(`#${routeId}`)\n        if (!rContent) {\n            console.error(`[uibrouter:createRouteContent] No route template found for route selector '#${routeId}'. Does the link url match a defined route id?`)\n            return false\n        }\n        const docFrag = rContent.content.cloneNode(true)\n        // Have to re-apply the scripts to make them run - only for external templates\n        if (this.isRouteExternal(routeId)) this._applyScripts(docFrag)\n        // Create the route wrapper div with data-route attrib\n        const tempContainer = document.createElement('div')\n        tempContainer.dataset.route = routeId\n        tempContainer.append(docFrag)\n        // And finally try to append to the container\n        try {\n            this.routeContainerEl.append(tempContainer)\n        } catch (e) {\n            console.error(`[uibrouter:createRouteContent] Failed to apply route id '${routeId}'. \\n ${e.message}`)\n            return false\n        }\n        return true\n    }\n\n    /** Loads an external HTML file into a `<template>` tag, adding the router id as the template id.\n     *  or returns an error array\n     * @param {routeDefinition} routeDefinition Configuration for a single route\n     * @returns {Promise<HTMLTemplateElement[]|[string,string,number,string]>} A promise that fulfills to an HTMLTemplateElement or an array containing error information\n     */\n    _loadExternal(routeDefinition) {\n        // const id = singleConfig.src.split('/').pop().replace('.html','')\n        const id = routeDefinition.id\n        // @ts-ignore\n        return fetch(routeDefinition.src)\n            .then(response => {\n                // Fetch failed?\n                if (response.ok === false) return [routeDefinition.id, routeDefinition.src, response.status, response.statusText]\n                return response.text()\n            })\n            .then((/** @type {string} */ htmlText) => {\n                if (Array.isArray(htmlText)) return htmlText // if the fetch failed\n\n                // Check to see if template already exists, if so, remove it\n                try {\n                    const chkTemplate = document.querySelector(`#${id}`)\n                    if (chkTemplate) chkTemplate.remove()\n                } catch (e) {}\n\n                const tempContainer = document.createElement('template')\n                tempContainer.innerHTML = htmlText\n                tempContainer.setAttribute('id', id)\n                return tempContainer\n            })\n            .catch(error => {\n                console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${routeDefinition.src}:`, error)\n            })\n    }\n\n    /** Remove/re-apply scripts in a container Element so that they are executed.\n     * @param {HTMLElement} tempContainer HTML Element of container to process\n     */\n    _applyScripts(tempContainer) {\n        const scripts = tempContainer.querySelectorAll('script')\n        scripts.forEach( scr => {\n            const newScript = document.createElement('script')\n            newScript.textContent = scr.innerText\n            tempContainer.append(newScript)\n            scr.remove() // remove the origin\n        })\n    }\n    //#endregion --- ----- --\n\n    /** Process a routing request\n     * @param {PointerEvent|MouseEvent|HashChangeEvent|TouchEvent|string} routeSource Either string containing route id or DOM Event object either click/touch on element containing `href=\"#routeid\"` or Hash URL change event\n     */\n    doRoute(routeSource) {\n        const container = this.routeContainerEl\n        if (!container) throw new Error('[uibrouter:doRoute] Cannot route, has router.setup() been called yet?')\n\n        // Remove all the url and query param text and any leading # - returns '' if no current hash\n        const currentHash = this.keepHashFromUrl(window.location.hash)\n\n        // If no route source provided, take the current hash (which might be '' and that will trigger the default route if defined)\n        if (!routeSource) routeSource = currentHash\n\n        let newRouteId, oldRouteId\n\n        // Define new and old routes depending on different call types\n        if (typeof routeSource === 'string') { // Manually provided route id\n            // console.log(`[uibrouter:doRoute] manual: ${currentHash} => ${this.keepHashFromUrl(routeSource)}. Current: ${currentHash}` )\n            newRouteId = this.keepHashFromUrl(routeSource)\n            oldRouteId = currentHash\n            // If no hash & config has default, set the default as new\n            if (newRouteId === '' && this.config.defaultRoute) newRouteId = this.config.defaultRoute\n            // If the new route id not the same as the current one in the url hash, just change the current hash & exit\n            if (newRouteId !== currentHash ) {\n                window.location.hash = `#${newRouteId}`\n                return\n            }\n        } else if (routeSource.type === 'hashchange') { // A URL Hash change event\n            // console.log(`[uibrouter:doRoute] hashchange: ${this.keepHashFromUrl(routeSource.oldURL)} => ${this.keepHashFromUrl(routeSource.newURL)}. Current: ${currentHash}` )\n            const newUrl = routeSource.newURL\n            // Check if URL actually contains a #\n            if (newUrl.includes('#')) {\n                oldRouteId = this.keepHashFromUrl(routeSource.oldURL)\n                newRouteId = this.keepHashFromUrl(newUrl) // Only keep anything after the # & ignoring query params\n            } else return\n        } else { // A mouse click/touch event on a dom element with an href attribute\n            oldRouteId = currentHash\n            // Try to get the route name from the URL hash\n            try {\n                newRouteId = this.keepHashFromUrl(routeSource.target.attributes.href.value) // Only keep anything after the # & ignoring query params\n            } catch (e) {\n                throw new Error('[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute')\n            }\n        }\n\n        let routeShown = false\n\n        // If no defined valid route, undo and throw error\n        if (!newRouteId || !this.routeList().includes(newRouteId)) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            throw new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${newRouteId}'`)\n        }\n\n        // Show the new container (replace or show)\n        if (this.config.hide) {\n            // config.hide = true so hide previous contents\n            if (oldRouteId) {\n                /** @type {HTMLElement|null} */\n                const oldContent = document.querySelector(`div[data-route=\"${oldRouteId}\"]`)\n                if (oldContent) oldContent.style.display = 'none'\n            }\n            /** and unhide new route if possible @type {HTMLElement|null} */\n            const content = document.querySelector(`div[data-route=\"${newRouteId}\"]`)\n            if (content) {\n                content.style.removeProperty('display')\n                routeShown = true\n            } else {\n                // else create new content from template\n                routeShown = this._createRouteContent(newRouteId)\n            }\n        } else {\n            // config.hide != true so remove previous contents\n            container.replaceChildren()\n            // Create new content from template\n            routeShown = this._createRouteContent(newRouteId)\n        }\n\n        // console.log({ newRouteId, oldRouteId, currentHash, routeShown })\n\n        // Roll back the route change if the new route cannot be shown\n        if (routeShown === false) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            return\n        }\n\n        // Retain current and previous route id's\n        this.currentRouteId = newRouteId\n        this.previousRouteId = oldRouteId\n\n        // Record the current route on the route container\n        container.dataset.currentRoute = newRouteId\n\n        // Events on route changed ...\n        document.dispatchEvent(new CustomEvent('uibrouter:route-changed', { detail: { newRouteId, oldRouteId } }))\n        if (uibuilder) uibuilder.set('uibrouter', 'route changed') // eslint-disable-line no-undef\n    }\n\n    /** Return a route config given a route id (returns undefined if route not found)\n     * @param {string} routeId Route ID to search for\n     * @returns {routeDefinition|undefined} Route config for found id else undefined\n     */\n    getRouteConfigById(routeId) {\n        return Object.values(this.config.routes).filter(r => r.id === routeId)[0]\n    }\n\n    /** Return true if the given route is external, false otherwise\n     * Used to correctly (re)apply script tags when cloning the template to the DOM (createRouteContent)\n     * @param {string} routeId Route ID to check\n     * @returns {boolean} True if the given route is external, false otherwise\n     */\n    isRouteExternal(routeId) {\n        const routeConfig = this.getRouteConfigById(routeId)\n        return !!(routeConfig && routeConfig.type === 'url')\n    }\n\n    /** Go to the default route if it has been specified */\n    defaultRoute() {\n        if (this.config.defaultRoute) this.doRoute(this.config.defaultRoute)\n    }\n\n    removeHash() {\n        history.pushState('', document.title, window.location.pathname + window.location.search)\n    }\n\n    /** Empty the current container and remove url hash - does not trigger a route change */\n    noRoute() {\n        this.removeHash()\n        this.routeContainerEl.replaceChildren()\n    }\n\n    /** Only keep anything after the # & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Return an array of route ids (to facilitate creation of menus)\n     * @param {boolean} returnHash If true, returns id's with leading `#` to apply to href attributes else returns the id\n     * @returns {string[]} Array of route id's or route url hashes\n     */\n    routeList(returnHash) {\n        return Object.values(this.config.routes).map((r) => returnHash === true ? `#${r.id}` : r.id)\n    }\n\n    /** Add new route definitions to the existing ones\n     * @param {routeDefinition|routeDefinition[]} routeConfig Single or array of route definitions to add\n     */\n    addRoutes(routeConfig) {\n        if (!Array.isArray(routeConfig)) routeConfig = [routeConfig]\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routeConfig).filter(r => r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded - Add new routes to config\n                this.config.routes.push(...routeConfig)\n                // Let everyone know it all finished\n                document.dispatchEvent(new CustomEvent('uibrouter:routes-added', { detail: routeConfig }))\n                if (uibuilder) uibuilder.set('uibrouter', 'routes added') // eslint-disable-line no-undef, promise/always-return\n            } )\n    }\n\n    // TODO\n    // deleteRoutes(aRoutes) {\n    //     // Delete all if no list provided\n    //     if (!aRoutes) aRoutes = this.config.routes\n    //     if (!Array.isArray(aRoutes)) aRoutes = [aRoutes]\n    //     console.log('to be deleted', this.config.routes.filter(r => aRoutes.includes(r.id)))\n    //     console.log('to be retained', this.config.routes.filter(r => !aRoutes.includes(r.id)))\n\n    //     // TODO actually remove the unwanted route templates\n    //     // TODO remove from the config: this.config.routes = this.config.routes.filter(r => !aRoutes.includes(r.id))\n\n    //     // ? Optional future upgrade - attempt to also remove any links to this route?\n    // }\n\n    // TODO\n    // deleteTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO delete\n    //     } )\n    // }\n\n    // TODO\n    // reloadTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO reload\n    //     } )\n    // }\n} // ---- End of class ----\n\n// For use in ESM loads\nexport { UibRouter }\nexport default UibRouter\n\n// Auto-assign for when the library is loaded via a script tag\nif (!window['UibRouter']) {\n    window['UibRouter'] = UibRouter\n} else {\n    console.warn('`UibRouter` already assigned to window. Have you tried to load it more than once?')\n}\n"],
+  "sourcesContent": ["// @ts-nocheck\n/** A simple, vanilla JavaScript front-end router class\n * Included in node-red-contrib-uibuilder but is not dependent on it.\n * May be used in other contexts as desired.\n * \n * Copyright (c) 2023-2023 Julian Knight (Totally Information)\n * https://it.knightnet.org.uk\n *\n * Licensed under the Apache License, Version 2.0 (the 'License');\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an 'AS IS' BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/** ---------------------------------------------------------------------\n * TODO\n * Methods needed:\n *   Delete route\n *   Update/reload route\n *   shutdown - that removes all elements\n *   delete templates - unloads a list of (or all) templates\n *   reload templates - to facilitate updates of a list of (or all) templates\n * Additional options:\n *   unload templates after they are added to the route container. Only if hide=true. `unload: true`\n *   Maybe: options to auto-load js and css files with the same name as a template file.\n * ---------------------------------------------------------------------  */\n\n/** Type definitions\n * routeConfig\n * @typedef {object} routeDefinition Single route configuration\n * @property {string} id REQUIRED. Route ID\n * @property {string} src REQUIRED. CSS Selector for template tag routes, url for external routes\n * @property {\"url\"|undefined} [type] OPTIONAL. \"url\" for external routes\n * UibRouterConfig\n * @typedef {object} UibRouterConfig Configuration for the UiBRouter class instances\n * @property {routeDefinition[]} routes REQUIRED. Array of route definitions\n * @property {string} [defaultRoute] OPTIONAL. If set to a route id, that route will be automatically shown on load\n * @property {string} [routeContainer] OPTIONAL. CSS Selector for an HTML Element containing routes\n * @property {boolean} [hide] OPTIONAL. If TRUE, routes will be hidden/shown on change instead of removed/added\n * @property {boolean} [unload] OPTIONAL. If TRUE, route templates will be unloaded from DOM after access. Only useful with the `hide` option\n */\n\nclass UibRouter { // eslint-disable-line no-unused-vars\n    //#region --- Variables ---\n    /** Class version */\n    static version = '1.0.1'\n\n    /** Configuration settings @type {UibRouterConfig} */\n    config\n    /** Reference to the container DOM element - set in setup() @type {HTMLDivElement} */\n    routeContainerEl\n    /** The current route id after doRoute() has been called */\n    currentRouteId\n    /** The previous route id after doRoute() has been called */\n    previousRouteId\n\n    /** Internal only. Set to true when the _start() method has been called */\n    #startDone = false\n    //#endregion --- ----- ---\n\n    //#region --- Internal Methods ---\n    /** Class constructor\n     * @param {UibRouterConfig} routerConfig Configuration object\n     */\n    constructor(routerConfig) {\n        // Fetch is on desktop browsers since 2017 at latest. Not so much on mobile (Android!)\n        // May need a polyfill on mobile or old browsers.\n        if (!fetch) throw new Error('[uibrouter:constructor] UibRouter requires `fetch`. Please use a current browser or load a fetch polyfill.')\n\n        if (!routerConfig) throw new Error('[uibrouter:constructor] No config provided')\n        if (!routerConfig.routes) throw new Error('[uibrouter:constructor] No routes provided in routerConfig')\n        // Add a default route container uf needed\n        if (!routerConfig.routeContainer)routerConfig.routeContainer = '#uibroutecontainer'\n\n        // Save the config\n        this.config = routerConfig\n        // Create/access the route container element, sets this.routeContainerEl\n        this._setRouteContainer()\n\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routerConfig.routes).filter(r => r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded so we can start\n                this._start()\n            } )\n    }\n\n    /** Save a reference to, and create if necessary, the HTML element to hold routes */\n    _setRouteContainer() {\n        const body = document.getElementsByTagName('body')[0]\n        // Get reference to route container or create it\n        let routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        if (!routeContainerEl) {\n            // throw new Error(`Route container element with CSS selector '${routerConfig.routeContainer}' not found in HTML`)\n            const tempContainer = document.createElement('div')\n            tempContainer.setAttribute('id', this.config.routeContainer.replace('#', ''))\n            body.append(tempContainer)\n            routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        }\n    }\n\n    /** Load fetched external elements to templates tags under the head tag\n     * @param {HTMLElement[]} loadedElements Array of loaded external elements to add as templates to the head tag\n     */\n    _appendExternalTemplates(loadedElements) {\n        const head = document.getElementsByTagName('head')[0]\n        // Append the loaded content to the main container\n        loadedElements.forEach(element => {\n            if (Array.isArray(element)) {\n                console.error(...element)\n            } else {\n                head.append(element)\n            }\n        })\n    }\n\n    /** Called once all external templates have been loaded */\n    _start() {\n        if (this.#startDone === true) return // Don't run this again\n\n        // Listen for url hash changes and process route change\n        window.addEventListener('hashchange', (event) => this._hashChange(event) )\n        // Go to default route if no route in url and if a default is defined or ensure current route is shown\n        this.doRoute()\n        // Events on fully loaded ...\n        document.dispatchEvent(new CustomEvent('uibrouter:loaded'))\n        if (uibuilder) uibuilder.set('uibrouter', 'loaded') // eslint-disable-line no-undef\n\n        this.#startDone = true // Don't run this again\n    }\n\n    /** Called when the URL Hash changes\n     * @param {HashChangeEvent} event URL Hash change event object\n     */\n    _hashChange(event) {\n        // console.log(`[uibrouter] hashchange: ${this.keepHashFromUrl(event.oldURL)} => ${this.keepHashFromUrl(event.newURL)}` )\n        this.doRoute(event)\n    }\n\n    /** Create DOM route content from a route template (internal or external)\n     * Route templates have to be a `<template>` tag with an ID that matches the route id.\n     * @param {string} routeId ID of the route definition to use to create the content\n     * @returns {boolean} True if the route content was created successfully, false otherwise\n     */\n    _createRouteContent(routeId) {\n        const rContent = document.querySelector(`#${routeId}`)\n        if (!rContent) {\n            console.error(`[uibrouter:createRouteContent] No route template found for route selector '#${routeId}'. Does the link url match a defined route id?`)\n            return false\n        }\n        const docFrag = rContent.content.cloneNode(true)\n        // Have to re-apply the scripts to make them run - only for external templates\n        if (this.isRouteExternal(routeId)) this._applyScripts(docFrag)\n        // Create the route wrapper div with data-route attrib\n        const tempContainer = document.createElement('div')\n        tempContainer.dataset.route = routeId\n        tempContainer.append(docFrag)\n        // And finally try to append to the container\n        try {\n            this.routeContainerEl.append(tempContainer)\n        } catch (e) {\n            console.error(`[uibrouter:createRouteContent] Failed to apply route id '${routeId}'. \\n ${e.message}`)\n            return false\n        }\n        return true\n    }\n\n    /** Loads an external HTML file into a `<template>` tag, adding the router id as the template id.\n     *  or returns an error array\n     * @param {routeDefinition} routeDefinition Configuration for a single route\n     * @returns {Promise<HTMLTemplateElement[]|[string,string,number,string]>} A promise that fulfills to an HTMLTemplateElement or an array containing error information\n     */\n    _loadExternal(routeDefinition) {\n        // const id = singleConfig.src.split('/').pop().replace('.html','')\n        const id = routeDefinition.id\n        // @ts-ignore\n        return fetch(routeDefinition.src)\n            .then(response => {\n                // Fetch failed?\n                if (response.ok === false) return [routeDefinition.id, routeDefinition.src, response.status, response.statusText]\n                return response.text()\n            })\n            .then((/** @type {string} */ htmlText) => {\n                if (Array.isArray(htmlText)) return htmlText // if the fetch failed\n\n                // Check to see if template already exists, if so, remove it\n                try {\n                    const chkTemplate = document.querySelector(`#${id}`)\n                    if (chkTemplate) chkTemplate.remove()\n                } catch (e) {}\n\n                const tempContainer = document.createElement('template')\n                tempContainer.innerHTML = htmlText\n                tempContainer.setAttribute('id', id)\n                return tempContainer\n            })\n            .catch(error => {\n                console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${routeDefinition.src}:`, error)\n            })\n    }\n\n    /** Remove/re-apply scripts in a container Element so that they are executed.\n     * @param {HTMLElement} tempContainer HTML Element of container to process\n     */\n    _applyScripts(tempContainer) {\n        const scripts = tempContainer.querySelectorAll('script')\n        scripts.forEach( scr => {\n            const newScript = document.createElement('script')\n            newScript.textContent = scr.innerText\n            tempContainer.append(newScript)\n            scr.remove() // remove the origin\n        })\n    }\n    //#endregion --- ----- --\n\n    /** Process a routing request\n     * @param {PointerEvent|MouseEvent|HashChangeEvent|TouchEvent|string} routeSource Either string containing route id or DOM Event object either click/touch on element containing `href=\"#routeid\"` or Hash URL change event\n     */\n    doRoute(routeSource) {\n        const container = this.routeContainerEl\n        if (!container) throw new Error('[uibrouter:doRoute] Cannot route, has router.setup() been called yet?')\n\n        // Remove all the url and query param text and any leading # - returns '' if no current hash\n        const currentHash = this.keepHashFromUrl(window.location.hash)\n\n        // If no route source provided, take the current hash (which might be '' and that will trigger the default route if defined)\n        if (!routeSource) routeSource = currentHash\n\n        let newRouteId, oldRouteId\n\n        // Define new and old routes depending on different call types\n        if (typeof routeSource === 'string') { // Manually provided route id\n            // console.log(`[uibrouter:doRoute] manual: ${currentHash} => ${this.keepHashFromUrl(routeSource)}. Current: ${currentHash}` )\n            newRouteId = this.keepHashFromUrl(routeSource)\n            oldRouteId = currentHash\n            // If no hash & config has default, set the default as new\n            if (newRouteId === '' && this.config.defaultRoute) newRouteId = this.config.defaultRoute\n            // If the new route id not the same as the current one in the url hash, just change the current hash & exit\n            if (newRouteId !== currentHash ) {\n                window.location.hash = `#${newRouteId}`\n                return\n            }\n        } else if (routeSource.type === 'hashchange') { // A URL Hash change event\n            // console.log(`[uibrouter:doRoute] hashchange: ${this.keepHashFromUrl(routeSource.oldURL)} => ${this.keepHashFromUrl(routeSource.newURL)}. Current: ${currentHash}` )\n            const newUrl = routeSource.newURL\n            // Check if URL actually contains a #\n            if (newUrl.includes('#')) {\n                oldRouteId = this.keepHashFromUrl(routeSource.oldURL)\n                newRouteId = this.keepHashFromUrl(newUrl) // Only keep anything after the # & ignoring query params\n            } else return\n        } else { // A mouse click/touch event on a dom element with an href attribute\n            oldRouteId = currentHash\n            // Try to get the route name from the URL hash\n            try {\n                newRouteId = this.keepHashFromUrl(routeSource.target.attributes.href.value) // Only keep anything after the # & ignoring query params\n            } catch (e) {\n                throw new Error('[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute')\n            }\n        }\n\n        let routeShown = false\n\n        // If no defined valid route, undo and throw error\n        if (!newRouteId || !this.routeList().includes(newRouteId)) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            throw new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${newRouteId}'`)\n        }\n\n        // Show the new container (replace or show)\n        if (this.config.hide) {\n            // config.hide = true so hide previous contents\n            if (oldRouteId) {\n                /** @type {HTMLElement|null} */\n                const oldContent = document.querySelector(`div[data-route=\"${oldRouteId}\"]`)\n                if (oldContent) oldContent.style.display = 'none'\n            }\n            /** and unhide new route if possible @type {HTMLElement|null} */\n            const content = document.querySelector(`div[data-route=\"${newRouteId}\"]`)\n            if (content) {\n                content.style.removeProperty('display')\n                routeShown = true\n            } else {\n                // else create new content from template\n                routeShown = this._createRouteContent(newRouteId)\n            }\n        } else {\n            // config.hide != true so remove previous contents\n            container.replaceChildren()\n            // Create new content from template\n            routeShown = this._createRouteContent(newRouteId)\n        }\n\n        // console.log({ newRouteId, oldRouteId, currentHash, routeShown })\n\n        // Roll back the route change if the new route cannot be shown\n        if (routeShown === false) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            return\n        }\n\n        // Retain current and previous route id's\n        this.currentRouteId = newRouteId\n        this.previousRouteId = oldRouteId\n\n        // Record the current route on the route container\n        container.dataset.currentRoute = newRouteId\n\n        // Events on route changed ...\n        document.dispatchEvent(new CustomEvent('uibrouter:route-changed', { detail: { newRouteId, oldRouteId } }))\n        if (uibuilder) uibuilder.set('uibrouter', 'route changed') // eslint-disable-line no-undef\n    }\n\n    /** Return a route config given a route id (returns undefined if route not found)\n     * @param {string} routeId Route ID to search for\n     * @returns {routeDefinition|undefined} Route config for found id else undefined\n     */\n    getRouteConfigById(routeId) {\n        return Object.values(this.config.routes).filter(r => r.id === routeId)[0]\n    }\n\n    /** Return true if the given route is external, false otherwise\n     * Used to correctly (re)apply script tags when cloning the template to the DOM (createRouteContent)\n     * @param {string} routeId Route ID to check\n     * @returns {boolean} True if the given route is external, false otherwise\n     */\n    isRouteExternal(routeId) {\n        const routeConfig = this.getRouteConfigById(routeId)\n        return !!(routeConfig && routeConfig.type === 'url')\n    }\n\n    /** Go to the default route if it has been specified */\n    defaultRoute() {\n        if (this.config.defaultRoute) this.doRoute(this.config.defaultRoute)\n    }\n\n    removeHash() {\n        history.pushState('', document.title, window.location.pathname + window.location.search)\n    }\n\n    /** Empty the current container and remove url hash - does not trigger a route change */\n    noRoute() {\n        this.removeHash()\n        this.routeContainerEl.replaceChildren()\n    }\n\n    /** Only keep anything after the # & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Return an array of route ids (to facilitate creation of menus)\n     * @param {boolean} returnHash If true, returns id's with leading `#` to apply to href attributes else returns the id\n     * @returns {string[]} Array of route id's or route url hashes\n     */\n    routeList(returnHash) {\n        return Object.values(this.config.routes).map((r) => returnHash === true ? `#${r.id}` : r.id)\n    }\n\n    /** Add new route definitions to the existing ones\n     * @param {routeDefinition|routeDefinition[]} routeConfig Single or array of route definitions to add\n     */\n    addRoutes(routeConfig) {\n        if (!Array.isArray(routeConfig)) routeConfig = [routeConfig]\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routeConfig).filter(r => r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded - Add new routes to config\n                this.config.routes.push(...routeConfig)\n                // Let everyone know it all finished\n                document.dispatchEvent(new CustomEvent('uibrouter:routes-added', { detail: routeConfig }))\n                if (uibuilder) uibuilder.set('uibrouter', 'routes added') // eslint-disable-line no-undef, promise/always-return\n            } )\n    }\n\n    // TODO\n    // deleteRoutes(aRoutes) {\n    //     // Delete all if no list provided\n    //     if (!aRoutes) aRoutes = this.config.routes\n    //     if (!Array.isArray(aRoutes)) aRoutes = [aRoutes]\n    //     console.log('to be deleted', this.config.routes.filter(r => aRoutes.includes(r.id)))\n    //     console.log('to be retained', this.config.routes.filter(r => !aRoutes.includes(r.id)))\n\n    //     // TODO actually remove the unwanted route templates\n    //     // TODO remove from the config: this.config.routes = this.config.routes.filter(r => !aRoutes.includes(r.id))\n\n    //     // ? Optional future upgrade - attempt to also remove any links to this route?\n    // }\n\n    // TODO\n    // deleteTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO delete\n    //     } )\n    // }\n\n    // TODO\n    // reloadTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO reload\n    //     } )\n    // }\n} // ---- End of class ----\n\n// For use in ESM loads\nexport { UibRouter }\nexport default UibRouter\n\n// Auto-assign for when the library is loaded via a script tag\nif (!window['UibRouter']) {\n    window['UibRouter'] = UibRouter\n} else {\n    console.warn('`UibRouter` already assigned to window. Have you tried to load it more than once?')\n}\n"],
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   "names": ["_startDone", "UibRouter", "routerConfig", "__publicField", "__privateAdd", "r", "body", "routeContainerEl", "tempContainer", "loadedElements", "head", "element", "__privateGet", "event", "__privateSet", "routeId", "rContent", "docFrag", "e", "routeDefinition", "id", "response", "htmlText", "chkTemplate", "error", "scr", "newScript", "routeSource", "container", "currentHash", "newRouteId", "oldRouteId", "newUrl", "routeShown", "oldContent", "content", "routeConfig", "url", "returnHash", "uibrouter_default", "UibRouter"]
 }
diff --git a/front-end/utils/uibrouter.iife.js b/front-end/utils/uibrouter.iife.js
index f61b4c87..00c304b8 100644
--- a/front-end/utils/uibrouter.iife.js
+++ b/front-end/utils/uibrouter.iife.js
@@ -327,7 +327,7 @@
   // eslint-disable-line no-unused-vars
   //#region --- Variables ---
   /** Class version */
-  __publicField(UibRouter, "version", "1.0.0");
+  __publicField(UibRouter, "version", "1.0.1");
   var uibrouter_default = UibRouter;
   if (!window["UibRouter"]) {
     window["UibRouter"] = UibRouter;
diff --git a/front-end/utils/uibrouter.iife.min.js b/front-end/utils/uibrouter.iife.min.js
index 37a8b039..15829674 100644
--- a/front-end/utils/uibrouter.iife.min.js
+++ b/front-end/utils/uibrouter.iife.min.js
@@ -1,3 +1,3 @@
 (()=>{var b=Object.defineProperty;var w=(n,e,t)=>e in n?b(n,e,{enumerable:!0,configurable:!0,writable:!0,value:t}):n[e]=t;var u=(n,e,t)=>(w(n,typeof e!="symbol"?e+"":e,t),t),h=(n,e,t)=>{if(!e.has(n))throw TypeError("Cannot "+t)};var f=(n,e,t)=>(h(n,e,"read from private field"),t?t.call(n):e.get(n)),p=(n,e,t)=>{if(e.has(n))throw TypeError("Cannot add the same private member more than once");e instanceof WeakSet?e.add(n):e.set(n,t)},m=(n,e,t,r)=>(h(n,e,"write to private field"),r?r.call(n,t):e.set(n,t),t);var d,s=class{constructor(e){u(this,"config");u(this,"routeContainerEl");u(this,"currentRouteId");u(this,"previousRouteId");p(this,d,!1);if(!fetch)throw new Error("[uibrouter:constructor] UibRouter requires `fetch`. Please use a current browser or load a fetch polyfill.");if(!e)throw new Error("[uibrouter:constructor] No config provided");if(!e.routes)throw new Error("[uibrouter:constructor] No routes provided in routerConfig");e.routeContainer||(e.routeContainer="#uibroutecontainer"),this.config=e,this._setRouteContainer(),Promise.all(Object.values(e.routes).filter(t=>t.type==="url").map(this._loadExternal)).then(this._appendExternalTemplates).then(()=>{this._start()})}_setRouteContainer(){let e=document.getElementsByTagName("body")[0],t=this.routeContainerEl=document.querySelector(this.config.routeContainer);if(!t){let r=document.createElement("div");r.setAttribute("id",this.config.routeContainer.replace("#","")),e.append(r),t=this.routeContainerEl=document.querySelector(this.config.routeContainer)}}_appendExternalTemplates(e){let t=document.getElementsByTagName("head")[0];e.forEach(r=>{Array.isArray(r)?console.error(...r):t.append(r)})}_start(){f(this,d)!==!0&&(window.addEventListener("hashchange",e=>this._hashChange(e)),this.doRoute(),document.dispatchEvent(new CustomEvent("uibrouter:loaded")),uibuilder&&uibuilder.set("uibrouter","loaded"),m(this,d,!0))}_hashChange(e){this.doRoute(e)}_createRouteContent(e){let t=document.querySelector(`#${e}`);if(!t)return console.error(`[uibrouter:createRouteContent] No route template found for route selector '#${e}'. Does the link url match a defined route id?`),!1;let r=t.content.cloneNode(!0);this.isRouteExternal(e)&&this._applyScripts(r);let o=document.createElement("div");o.dataset.route=e,o.append(r);try{this.routeContainerEl.append(o)}catch(i){return console.error(`[uibrouter:createRouteContent] Failed to apply route id '${e}'. 
- ${i.message}`),!1}return!0}_loadExternal(e){let t=e.id;return fetch(e.src).then(r=>r.ok===!1?[e.id,e.src,r.status,r.statusText]:r.text()).then(r=>{if(Array.isArray(r))return r;try{let i=document.querySelector(`#${t}`);i&&i.remove()}catch{}let o=document.createElement("template");return o.innerHTML=r,o.setAttribute("id",t),o}).catch(r=>{console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${e.src}:`,r)})}_applyScripts(e){e.querySelectorAll("script").forEach(r=>{let o=document.createElement("script");o.textContent=r.innerText,e.append(o),r.remove()})}doRoute(e){let t=this.routeContainerEl;if(!t)throw new Error("[uibrouter:doRoute] Cannot route, has router.setup() been called yet?");let r=this.keepHashFromUrl(window.location.hash);e||(e=r);let o,i;if(typeof e=="string"){if(o=this.keepHashFromUrl(e),i=r,o===""&&this.config.defaultRoute&&(o=this.config.defaultRoute),o!==r){window.location.hash=`#${o}`;return}}else if(e.type==="hashchange"){let a=e.newURL;if(a.includes("#"))i=this.keepHashFromUrl(e.oldURL),o=this.keepHashFromUrl(a);else return}else{i=r;try{o=this.keepHashFromUrl(e.target.attributes.href.value)}catch{throw new Error("[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute")}}let l=!1;if(!o||!this.routeList().includes(o))throw document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:i}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=i?`#${i}`:"",new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${o}'`);if(this.config.hide){if(i){let c=document.querySelector(`div[data-route="${i}"]`);c&&(c.style.display="none")}let a=document.querySelector(`div[data-route="${o}"]`);a?(a.style.removeProperty("display"),l=!0):l=this._createRouteContent(o)}else t.replaceChildren(),l=this._createRouteContent(o);if(l===!1){document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:i}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=i?`#${i}`:"";return}this.currentRouteId=o,this.previousRouteId=i,t.dataset.currentRoute=o,document.dispatchEvent(new CustomEvent("uibrouter:route-changed",{detail:{newRouteId:o,oldRouteId:i}})),uibuilder&&uibuilder.set("uibrouter","route changed")}getRouteConfigById(e){return Object.values(this.config.routes).filter(t=>t.id===e)[0]}isRouteExternal(e){let t=this.getRouteConfigById(e);return!!(t&&t.type==="url")}defaultRoute(){this.config.defaultRoute&&this.doRoute(this.config.defaultRoute)}removeHash(){history.pushState("",document.title,window.location.pathname+window.location.search)}noRoute(){this.removeHash(),this.routeContainerEl.replaceChildren()}keepHashFromUrl(e){return e?e.replace(/^.*#(.*)/,"$1").replace(/\?.*$/,""):""}routeList(e){return Object.values(this.config.routes).map(t=>e===!0?`#${t.id}`:t.id)}addRoutes(e){Array.isArray(e)||(e=[e]),Promise.all(Object.values(e).filter(t=>t.type==="url").map(this._loadExternal)).then(this._appendExternalTemplates).then(()=>{this.config.routes.push(...e),document.dispatchEvent(new CustomEvent("uibrouter:routes-added",{detail:e})),uibuilder&&uibuilder.set("uibrouter","routes added")})}};d=new WeakMap,u(s,"version","1.0.0");var y=s;window.UibRouter?console.warn("`UibRouter` already assigned to window. Have you tried to load it more than once?"):window.UibRouter=s;})();
+ ${i.message}`),!1}return!0}_loadExternal(e){let t=e.id;return fetch(e.src).then(r=>r.ok===!1?[e.id,e.src,r.status,r.statusText]:r.text()).then(r=>{if(Array.isArray(r))return r;try{let i=document.querySelector(`#${t}`);i&&i.remove()}catch{}let o=document.createElement("template");return o.innerHTML=r,o.setAttribute("id",t),o}).catch(r=>{console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${e.src}:`,r)})}_applyScripts(e){e.querySelectorAll("script").forEach(r=>{let o=document.createElement("script");o.textContent=r.innerText,e.append(o),r.remove()})}doRoute(e){let t=this.routeContainerEl;if(!t)throw new Error("[uibrouter:doRoute] Cannot route, has router.setup() been called yet?");let r=this.keepHashFromUrl(window.location.hash);e||(e=r);let o,i;if(typeof e=="string"){if(o=this.keepHashFromUrl(e),i=r,o===""&&this.config.defaultRoute&&(o=this.config.defaultRoute),o!==r){window.location.hash=`#${o}`;return}}else if(e.type==="hashchange"){let a=e.newURL;if(a.includes("#"))i=this.keepHashFromUrl(e.oldURL),o=this.keepHashFromUrl(a);else return}else{i=r;try{o=this.keepHashFromUrl(e.target.attributes.href.value)}catch{throw new Error("[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute")}}let l=!1;if(!o||!this.routeList().includes(o))throw document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:i}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=i?`#${i}`:"",new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${o}'`);if(this.config.hide){if(i){let c=document.querySelector(`div[data-route="${i}"]`);c&&(c.style.display="none")}let a=document.querySelector(`div[data-route="${o}"]`);a?(a.style.removeProperty("display"),l=!0):l=this._createRouteContent(o)}else t.replaceChildren(),l=this._createRouteContent(o);if(l===!1){document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:i}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=i?`#${i}`:"";return}this.currentRouteId=o,this.previousRouteId=i,t.dataset.currentRoute=o,document.dispatchEvent(new CustomEvent("uibrouter:route-changed",{detail:{newRouteId:o,oldRouteId:i}})),uibuilder&&uibuilder.set("uibrouter","route changed")}getRouteConfigById(e){return Object.values(this.config.routes).filter(t=>t.id===e)[0]}isRouteExternal(e){let t=this.getRouteConfigById(e);return!!(t&&t.type==="url")}defaultRoute(){this.config.defaultRoute&&this.doRoute(this.config.defaultRoute)}removeHash(){history.pushState("",document.title,window.location.pathname+window.location.search)}noRoute(){this.removeHash(),this.routeContainerEl.replaceChildren()}keepHashFromUrl(e){return e?e.replace(/^.*#(.*)/,"$1").replace(/\?.*$/,""):""}routeList(e){return Object.values(this.config.routes).map(t=>e===!0?`#${t.id}`:t.id)}addRoutes(e){Array.isArray(e)||(e=[e]),Promise.all(Object.values(e).filter(t=>t.type==="url").map(this._loadExternal)).then(this._appendExternalTemplates).then(()=>{this.config.routes.push(...e),document.dispatchEvent(new CustomEvent("uibrouter:routes-added",{detail:e})),uibuilder&&uibuilder.set("uibrouter","routes added")})}};d=new WeakMap,u(s,"version","1.0.1");var y=s;window.UibRouter?console.warn("`UibRouter` already assigned to window. Have you tried to load it more than once?"):window.UibRouter=s;})();
 //# sourceMappingURL=uibrouter.iife.min.js.map
diff --git a/front-end/utils/uibrouter.iife.min.js.map b/front-end/utils/uibrouter.iife.min.js.map
index 3ee8e4a1..8314a8de 100644
--- a/front-end/utils/uibrouter.iife.min.js.map
+++ b/front-end/utils/uibrouter.iife.min.js.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
   "sources": ["src/front-end-module/uibrouter.js"],
-  "sourcesContent": ["// @ts-nocheck\n/** A simple, vanilla JavaScript front-end router class\n * Included in node-red-contrib-uibuilder but is not dependent on it.\n * May be used in other contexts as desired.\n * \n * Copyright (c) 2023-2023 Julian Knight (Totally Information)\n * https://it.knightnet.org.uk\n *\n * Licensed under the Apache License, Version 2.0 (the 'License');\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an 'AS IS' BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/** ---------------------------------------------------------------------\n * TODO\n * Methods needed:\n *   Delete route\n *   Update/reload route\n *   shutdown - that removes all elements\n *   delete templates - unloads a list of (or all) templates\n *   reload templates - to facilitate updates of a list of (or all) templates\n * Additional options:\n *   unload templates after they are added to the route container. Only if hide=true. `unload: true`\n *   Maybe: options to auto-load js and css files with the same name as a template file.\n * ---------------------------------------------------------------------  */\n\n/** Type definitions\n * routeConfig\n * @typedef {object} routeDefinition Single route configuration\n * @property {string} id REQUIRED. Route ID\n * @property {string} src REQUIRED. CSS Selector for template tag routes, url for external routes\n * @property {\"url\"|undefined} [type] OPTIONAL. \"url\" for external routes\n * UibRouterConfig\n * @typedef {object} UibRouterConfig Configuration for the UiBRouter class instances\n * @property {routeDefinition[]} routes REQUIRED. Array of route definitions\n * @property {string} [defaultRoute] OPTIONAL. If set to a route id, that route will be automatically shown on load\n * @property {string} [routeContainer] OPTIONAL. CSS Selector for an HTML Element containing routes\n * @property {boolean} [hide] OPTIONAL. If TRUE, routes will be hidden/shown on change instead of removed/added\n * @property {boolean} [unload] OPTIONAL. If TRUE, route templates will be unloaded from DOM after access. Only useful with the `hide` option\n */\n\nclass UibRouter { // eslint-disable-line no-unused-vars\n    //#region --- Variables ---\n    /** Class version */\n    static version = '1.0.0'\n\n    /** Configuration settings @type {UibRouterConfig} */\n    config\n    /** Reference to the container DOM element - set in setup() @type {HTMLDivElement} */\n    routeContainerEl\n    /** The current route id after doRoute() has been called */\n    currentRouteId\n    /** The previous route id after doRoute() has been called */\n    previousRouteId\n\n    /** Internal only. Set to true when the _start() method has been called */\n    #startDone = false\n    //#endregion --- ----- ---\n\n    //#region --- Internal Methods ---\n    /** Class constructor\n     * @param {UibRouterConfig} routerConfig Configuration object\n     */\n    constructor(routerConfig) {\n        // Fetch is on desktop browsers since 2017 at latest. Not so much on mobile (Android!)\n        // May need a polyfill on mobile or old browsers.\n        if (!fetch) throw new Error('[uibrouter:constructor] UibRouter requires `fetch`. Please use a current browser or load a fetch polyfill.')\n\n        if (!routerConfig) throw new Error('[uibrouter:constructor] No config provided')\n        if (!routerConfig.routes) throw new Error('[uibrouter:constructor] No routes provided in routerConfig')\n        // Add a default route container uf needed\n        if (!routerConfig.routeContainer)routerConfig.routeContainer = '#uibroutecontainer'\n\n        // Save the config\n        this.config = routerConfig\n        // Create/access the route container element, sets this.routeContainerEl\n        this._setRouteContainer()\n\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routerConfig.routes).filter(r => r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded so we can start\n                this._start()\n            } )\n    }\n\n    /** Save a reference to, and create if necessary, the HTML element to hold routes */\n    _setRouteContainer() {\n        const body = document.getElementsByTagName('body')[0]\n        // Get reference to route container or create it\n        let routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        if (!routeContainerEl) {\n            // throw new Error(`Route container element with CSS selector '${routerConfig.routeContainer}' not found in HTML`)\n            const tempContainer = document.createElement('div')\n            tempContainer.setAttribute('id', this.config.routeContainer.replace('#', ''))\n            body.append(tempContainer)\n            routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        }\n    }\n\n    /** Load fetched external elements to templates tags under the head tag\n     * @param {HTMLElement[]} loadedElements Array of loaded external elements to add as templates to the head tag\n     */\n    _appendExternalTemplates(loadedElements) {\n        const head = document.getElementsByTagName('head')[0]\n        // Append the loaded content to the main container\n        loadedElements.forEach(element => {\n            if (Array.isArray(element)) {\n                console.error(...element)\n            } else {\n                head.append(element)\n            }\n        })\n    }\n\n    /** Called once all external templates have been loaded */\n    _start() {\n        if (this.#startDone === true) return // Don't run this again\n\n        // Listen for url hash changes and process route change\n        window.addEventListener('hashchange', (event) => this._hashChange(event) )\n        // Go to default route if no route in url and if a default is defined or ensure current route is shown\n        this.doRoute()\n        // Events on fully loaded ...\n        document.dispatchEvent(new CustomEvent('uibrouter:loaded'))\n        if (uibuilder) uibuilder.set('uibrouter', 'loaded') // eslint-disable-line no-undef\n\n        this.#startDone = true // Don't run this again\n    }\n\n    /** Called when the URL Hash changes\n     * @param {HashChangeEvent} event URL Hash change event object\n     */\n    _hashChange(event) {\n        // console.log(`[uibrouter] hashchange: ${this.keepHashFromUrl(event.oldURL)} => ${this.keepHashFromUrl(event.newURL)}` )\n        this.doRoute(event)\n    }\n\n    /** Create DOM route content from a route template (internal or external)\n     * Route templates have to be a `<template>` tag with an ID that matches the route id.\n     * @param {string} routeId ID of the route definition to use to create the content\n     * @returns {boolean} True if the route content was created successfully, false otherwise\n     */\n    _createRouteContent(routeId) {\n        const rContent = document.querySelector(`#${routeId}`)\n        if (!rContent) {\n            console.error(`[uibrouter:createRouteContent] No route template found for route selector '#${routeId}'. Does the link url match a defined route id?`)\n            return false\n        }\n        const docFrag = rContent.content.cloneNode(true)\n        // Have to re-apply the scripts to make them run - only for external templates\n        if (this.isRouteExternal(routeId)) this._applyScripts(docFrag)\n        // Create the route wrapper div with data-route attrib\n        const tempContainer = document.createElement('div')\n        tempContainer.dataset.route = routeId\n        tempContainer.append(docFrag)\n        // And finally try to append to the container\n        try {\n            this.routeContainerEl.append(tempContainer)\n        } catch (e) {\n            console.error(`[uibrouter:createRouteContent] Failed to apply route id '${routeId}'. \\n ${e.message}`)\n            return false\n        }\n        return true\n    }\n\n    /** Loads an external HTML file into a `<template>` tag, adding the router id as the template id.\n     *  or returns an error array\n     * @param {routeDefinition} routeDefinition Configuration for a single route\n     * @returns {Promise<HTMLTemplateElement[]|[string,string,number,string]>} A promise that fulfills to an HTMLTemplateElement or an array containing error information\n     */\n    _loadExternal(routeDefinition) {\n        // const id = singleConfig.src.split('/').pop().replace('.html','')\n        const id = routeDefinition.id\n        // @ts-ignore\n        return fetch(routeDefinition.src)\n            .then(response => {\n                // Fetch failed?\n                if (response.ok === false) return [routeDefinition.id, routeDefinition.src, response.status, response.statusText]\n                return response.text()\n            })\n            .then((/** @type {string} */ htmlText) => {\n                if (Array.isArray(htmlText)) return htmlText // if the fetch failed\n\n                // Check to see if template already exists, if so, remove it\n                try {\n                    const chkTemplate = document.querySelector(`#${id}`)\n                    if (chkTemplate) chkTemplate.remove()\n                } catch (e) {}\n\n                const tempContainer = document.createElement('template')\n                tempContainer.innerHTML = htmlText\n                tempContainer.setAttribute('id', id)\n                return tempContainer\n            })\n            .catch(error => {\n                console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${routeDefinition.src}:`, error)\n            })\n    }\n\n    /** Remove/re-apply scripts in a container Element so that they are executed.\n     * @param {HTMLElement} tempContainer HTML Element of container to process\n     */\n    _applyScripts(tempContainer) {\n        const scripts = tempContainer.querySelectorAll('script')\n        scripts.forEach( scr => {\n            const newScript = document.createElement('script')\n            newScript.textContent = scr.innerText\n            tempContainer.append(newScript)\n            scr.remove() // remove the origin\n        })\n    }\n    //#endregion --- ----- --\n\n    /** Process a routing request\n     * @param {PointerEvent|MouseEvent|HashChangeEvent|TouchEvent|string} routeSource Either string containing route id or DOM Event object either click/touch on element containing `href=\"#routeid\"` or Hash URL change event\n     */\n    doRoute(routeSource) {\n        const container = this.routeContainerEl\n        if (!container) throw new Error('[uibrouter:doRoute] Cannot route, has router.setup() been called yet?')\n\n        // Remove all the url and query param text and any leading # - returns '' if no current hash\n        const currentHash = this.keepHashFromUrl(window.location.hash)\n\n        // If no route source provided, take the current hash (which might be '' and that will trigger the default route if defined)\n        if (!routeSource) routeSource = currentHash\n\n        let newRouteId, oldRouteId\n\n        // Define new and old routes depending on different call types\n        if (typeof routeSource === 'string') { // Manually provided route id\n            // console.log(`[uibrouter:doRoute] manual: ${currentHash} => ${this.keepHashFromUrl(routeSource)}. Current: ${currentHash}` )\n            newRouteId = this.keepHashFromUrl(routeSource)\n            oldRouteId = currentHash\n            // If no hash & config has default, set the default as new\n            if (newRouteId === '' && this.config.defaultRoute) newRouteId = this.config.defaultRoute\n            // If the new route id not the same as the current one in the url hash, just change the current hash & exit\n            if (newRouteId !== currentHash ) {\n                window.location.hash = `#${newRouteId}`\n                return\n            }\n        } else if (routeSource.type === 'hashchange') { // A URL Hash change event\n            // console.log(`[uibrouter:doRoute] hashchange: ${this.keepHashFromUrl(routeSource.oldURL)} => ${this.keepHashFromUrl(routeSource.newURL)}. Current: ${currentHash}` )\n            const newUrl = routeSource.newURL\n            // Check if URL actually contains a #\n            if (newUrl.includes('#')) {\n                oldRouteId = this.keepHashFromUrl(routeSource.oldURL)\n                newRouteId = this.keepHashFromUrl(newUrl) // Only keep anything after the # & ignoring query params\n            } else return\n        } else { // A mouse click/touch event on a dom element with an href attribute\n            oldRouteId = currentHash\n            // Try to get the route name from the URL hash\n            try {\n                newRouteId = this.keepHashFromUrl(routeSource.target.attributes.href.value) // Only keep anything after the # & ignoring query params\n            } catch (e) {\n                throw new Error('[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute')\n            }\n        }\n\n        let routeShown = false\n\n        // If no defined valid route, undo and throw error\n        if (!newRouteId || !this.routeList().includes(newRouteId)) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            throw new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${newRouteId}'`)\n        }\n\n        // Show the new container (replace or show)\n        if (this.config.hide) {\n            // config.hide = true so hide previous contents\n            if (oldRouteId) {\n                /** @type {HTMLElement|null} */\n                const oldContent = document.querySelector(`div[data-route=\"${oldRouteId}\"]`)\n                if (oldContent) oldContent.style.display = 'none'\n            }\n            /** and unhide new route if possible @type {HTMLElement|null} */\n            const content = document.querySelector(`div[data-route=\"${newRouteId}\"]`)\n            if (content) {\n                content.style.removeProperty('display')\n                routeShown = true\n            } else {\n                // else create new content from template\n                routeShown = this._createRouteContent(newRouteId)\n            }\n        } else {\n            // config.hide != true so remove previous contents\n            container.replaceChildren()\n            // Create new content from template\n            routeShown = this._createRouteContent(newRouteId)\n        }\n\n        // console.log({ newRouteId, oldRouteId, currentHash, routeShown })\n\n        // Roll back the route change if the new route cannot be shown\n        if (routeShown === false) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            return\n        }\n\n        // Retain current and previous route id's\n        this.currentRouteId = newRouteId\n        this.previousRouteId = oldRouteId\n\n        // Record the current route on the route container\n        container.dataset.currentRoute = newRouteId\n\n        // Events on route changed ...\n        document.dispatchEvent(new CustomEvent('uibrouter:route-changed', { detail: { newRouteId, oldRouteId } }))\n        if (uibuilder) uibuilder.set('uibrouter', 'route changed') // eslint-disable-line no-undef\n    }\n\n    /** Return a route config given a route id (returns undefined if route not found)\n     * @param {string} routeId Route ID to search for\n     * @returns {routeDefinition|undefined} Route config for found id else undefined\n     */\n    getRouteConfigById(routeId) {\n        return Object.values(this.config.routes).filter(r => r.id === routeId)[0]\n    }\n\n    /** Return true if the given route is external, false otherwise\n     * Used to correctly (re)apply script tags when cloning the template to the DOM (createRouteContent)\n     * @param {string} routeId Route ID to check\n     * @returns {boolean} True if the given route is external, false otherwise\n     */\n    isRouteExternal(routeId) {\n        const routeConfig = this.getRouteConfigById(routeId)\n        return !!(routeConfig && routeConfig.type === 'url')\n    }\n\n    /** Go to the default route if it has been specified */\n    defaultRoute() {\n        if (this.config.defaultRoute) this.doRoute(this.config.defaultRoute)\n    }\n\n    removeHash() {\n        history.pushState('', document.title, window.location.pathname + window.location.search)\n    }\n\n    /** Empty the current container and remove url hash - does not trigger a route change */\n    noRoute() {\n        this.removeHash()\n        this.routeContainerEl.replaceChildren()\n    }\n\n    /** Only keep anything after the # & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Return an array of route ids (to facilitate creation of menus)\n     * @param {boolean} returnHash If true, returns id's with leading `#` to apply to href attributes else returns the id\n     * @returns {string[]} Array of route id's or route url hashes\n     */\n    routeList(returnHash) {\n        return Object.values(this.config.routes).map((r) => returnHash === true ? `#${r.id}` : r.id)\n    }\n\n    /** Add new route definitions to the existing ones\n     * @param {routeDefinition|routeDefinition[]} routeConfig Single or array of route definitions to add\n     */\n    addRoutes(routeConfig) {\n        if (!Array.isArray(routeConfig)) routeConfig = [routeConfig]\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routeConfig).filter(r => r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded - Add new routes to config\n                this.config.routes.push(...routeConfig)\n                // Let everyone know it all finished\n                document.dispatchEvent(new CustomEvent('uibrouter:routes-added', { detail: routeConfig }))\n                if (uibuilder) uibuilder.set('uibrouter', 'routes added') // eslint-disable-line no-undef, promise/always-return\n            } )\n    }\n\n    // TODO\n    // deleteRoutes(aRoutes) {\n    //     // Delete all if no list provided\n    //     if (!aRoutes) aRoutes = this.config.routes\n    //     if (!Array.isArray(aRoutes)) aRoutes = [aRoutes]\n    //     console.log('to be deleted', this.config.routes.filter(r => aRoutes.includes(r.id)))\n    //     console.log('to be retained', this.config.routes.filter(r => !aRoutes.includes(r.id)))\n\n    //     // TODO actually remove the unwanted route templates\n    //     // TODO remove from the config: this.config.routes = this.config.routes.filter(r => !aRoutes.includes(r.id))\n\n    //     // ? Optional future upgrade - attempt to also remove any links to this route?\n    // }\n\n    // TODO\n    // deleteTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO delete\n    //     } )\n    // }\n\n    // TODO\n    // reloadTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO reload\n    //     } )\n    // }\n} // ---- End of class ----\n\n// For use in ESM loads\nexport { UibRouter }\nexport default UibRouter\n\n// Auto-assign for when the library is loaded via a script tag\nif (!window['UibRouter']) {\n    window['UibRouter'] = UibRouter\n} else {\n    console.warn('`UibRouter` already assigned to window. Have you tried to load it more than once?')\n}\n"],
+  "sourcesContent": ["// @ts-nocheck\n/** A simple, vanilla JavaScript front-end router class\n * Included in node-red-contrib-uibuilder but is not dependent on it.\n * May be used in other contexts as desired.\n * \n * Copyright (c) 2023-2023 Julian Knight (Totally Information)\n * https://it.knightnet.org.uk\n *\n * Licensed under the Apache License, Version 2.0 (the 'License');\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an 'AS IS' BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/** ---------------------------------------------------------------------\n * TODO\n * Methods needed:\n *   Delete route\n *   Update/reload route\n *   shutdown - that removes all elements\n *   delete templates - unloads a list of (or all) templates\n *   reload templates - to facilitate updates of a list of (or all) templates\n * Additional options:\n *   unload templates after they are added to the route container. Only if hide=true. `unload: true`\n *   Maybe: options to auto-load js and css files with the same name as a template file.\n * ---------------------------------------------------------------------  */\n\n/** Type definitions\n * routeConfig\n * @typedef {object} routeDefinition Single route configuration\n * @property {string} id REQUIRED. Route ID\n * @property {string} src REQUIRED. CSS Selector for template tag routes, url for external routes\n * @property {\"url\"|undefined} [type] OPTIONAL. \"url\" for external routes\n * UibRouterConfig\n * @typedef {object} UibRouterConfig Configuration for the UiBRouter class instances\n * @property {routeDefinition[]} routes REQUIRED. Array of route definitions\n * @property {string} [defaultRoute] OPTIONAL. If set to a route id, that route will be automatically shown on load\n * @property {string} [routeContainer] OPTIONAL. CSS Selector for an HTML Element containing routes\n * @property {boolean} [hide] OPTIONAL. If TRUE, routes will be hidden/shown on change instead of removed/added\n * @property {boolean} [unload] OPTIONAL. If TRUE, route templates will be unloaded from DOM after access. Only useful with the `hide` option\n */\n\nclass UibRouter { // eslint-disable-line no-unused-vars\n    //#region --- Variables ---\n    /** Class version */\n    static version = '1.0.1'\n\n    /** Configuration settings @type {UibRouterConfig} */\n    config\n    /** Reference to the container DOM element - set in setup() @type {HTMLDivElement} */\n    routeContainerEl\n    /** The current route id after doRoute() has been called */\n    currentRouteId\n    /** The previous route id after doRoute() has been called */\n    previousRouteId\n\n    /** Internal only. Set to true when the _start() method has been called */\n    #startDone = false\n    //#endregion --- ----- ---\n\n    //#region --- Internal Methods ---\n    /** Class constructor\n     * @param {UibRouterConfig} routerConfig Configuration object\n     */\n    constructor(routerConfig) {\n        // Fetch is on desktop browsers since 2017 at latest. Not so much on mobile (Android!)\n        // May need a polyfill on mobile or old browsers.\n        if (!fetch) throw new Error('[uibrouter:constructor] UibRouter requires `fetch`. Please use a current browser or load a fetch polyfill.')\n\n        if (!routerConfig) throw new Error('[uibrouter:constructor] No config provided')\n        if (!routerConfig.routes) throw new Error('[uibrouter:constructor] No routes provided in routerConfig')\n        // Add a default route container uf needed\n        if (!routerConfig.routeContainer)routerConfig.routeContainer = '#uibroutecontainer'\n\n        // Save the config\n        this.config = routerConfig\n        // Create/access the route container element, sets this.routeContainerEl\n        this._setRouteContainer()\n\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routerConfig.routes).filter(r => r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded so we can start\n                this._start()\n            } )\n    }\n\n    /** Save a reference to, and create if necessary, the HTML element to hold routes */\n    _setRouteContainer() {\n        const body = document.getElementsByTagName('body')[0]\n        // Get reference to route container or create it\n        let routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        if (!routeContainerEl) {\n            // throw new Error(`Route container element with CSS selector '${routerConfig.routeContainer}' not found in HTML`)\n            const tempContainer = document.createElement('div')\n            tempContainer.setAttribute('id', this.config.routeContainer.replace('#', ''))\n            body.append(tempContainer)\n            routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        }\n    }\n\n    /** Load fetched external elements to templates tags under the head tag\n     * @param {HTMLElement[]} loadedElements Array of loaded external elements to add as templates to the head tag\n     */\n    _appendExternalTemplates(loadedElements) {\n        const head = document.getElementsByTagName('head')[0]\n        // Append the loaded content to the main container\n        loadedElements.forEach(element => {\n            if (Array.isArray(element)) {\n                console.error(...element)\n            } else {\n                head.append(element)\n            }\n        })\n    }\n\n    /** Called once all external templates have been loaded */\n    _start() {\n        if (this.#startDone === true) return // Don't run this again\n\n        // Listen for url hash changes and process route change\n        window.addEventListener('hashchange', (event) => this._hashChange(event) )\n        // Go to default route if no route in url and if a default is defined or ensure current route is shown\n        this.doRoute()\n        // Events on fully loaded ...\n        document.dispatchEvent(new CustomEvent('uibrouter:loaded'))\n        if (uibuilder) uibuilder.set('uibrouter', 'loaded') // eslint-disable-line no-undef\n\n        this.#startDone = true // Don't run this again\n    }\n\n    /** Called when the URL Hash changes\n     * @param {HashChangeEvent} event URL Hash change event object\n     */\n    _hashChange(event) {\n        // console.log(`[uibrouter] hashchange: ${this.keepHashFromUrl(event.oldURL)} => ${this.keepHashFromUrl(event.newURL)}` )\n        this.doRoute(event)\n    }\n\n    /** Create DOM route content from a route template (internal or external)\n     * Route templates have to be a `<template>` tag with an ID that matches the route id.\n     * @param {string} routeId ID of the route definition to use to create the content\n     * @returns {boolean} True if the route content was created successfully, false otherwise\n     */\n    _createRouteContent(routeId) {\n        const rContent = document.querySelector(`#${routeId}`)\n        if (!rContent) {\n            console.error(`[uibrouter:createRouteContent] No route template found for route selector '#${routeId}'. Does the link url match a defined route id?`)\n            return false\n        }\n        const docFrag = rContent.content.cloneNode(true)\n        // Have to re-apply the scripts to make them run - only for external templates\n        if (this.isRouteExternal(routeId)) this._applyScripts(docFrag)\n        // Create the route wrapper div with data-route attrib\n        const tempContainer = document.createElement('div')\n        tempContainer.dataset.route = routeId\n        tempContainer.append(docFrag)\n        // And finally try to append to the container\n        try {\n            this.routeContainerEl.append(tempContainer)\n        } catch (e) {\n            console.error(`[uibrouter:createRouteContent] Failed to apply route id '${routeId}'. \\n ${e.message}`)\n            return false\n        }\n        return true\n    }\n\n    /** Loads an external HTML file into a `<template>` tag, adding the router id as the template id.\n     *  or returns an error array\n     * @param {routeDefinition} routeDefinition Configuration for a single route\n     * @returns {Promise<HTMLTemplateElement[]|[string,string,number,string]>} A promise that fulfills to an HTMLTemplateElement or an array containing error information\n     */\n    _loadExternal(routeDefinition) {\n        // const id = singleConfig.src.split('/').pop().replace('.html','')\n        const id = routeDefinition.id\n        // @ts-ignore\n        return fetch(routeDefinition.src)\n            .then(response => {\n                // Fetch failed?\n                if (response.ok === false) return [routeDefinition.id, routeDefinition.src, response.status, response.statusText]\n                return response.text()\n            })\n            .then((/** @type {string} */ htmlText) => {\n                if (Array.isArray(htmlText)) return htmlText // if the fetch failed\n\n                // Check to see if template already exists, if so, remove it\n                try {\n                    const chkTemplate = document.querySelector(`#${id}`)\n                    if (chkTemplate) chkTemplate.remove()\n                } catch (e) {}\n\n                const tempContainer = document.createElement('template')\n                tempContainer.innerHTML = htmlText\n                tempContainer.setAttribute('id', id)\n                return tempContainer\n            })\n            .catch(error => {\n                console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${routeDefinition.src}:`, error)\n            })\n    }\n\n    /** Remove/re-apply scripts in a container Element so that they are executed.\n     * @param {HTMLElement} tempContainer HTML Element of container to process\n     */\n    _applyScripts(tempContainer) {\n        const scripts = tempContainer.querySelectorAll('script')\n        scripts.forEach( scr => {\n            const newScript = document.createElement('script')\n            newScript.textContent = scr.innerText\n            tempContainer.append(newScript)\n            scr.remove() // remove the origin\n        })\n    }\n    //#endregion --- ----- --\n\n    /** Process a routing request\n     * @param {PointerEvent|MouseEvent|HashChangeEvent|TouchEvent|string} routeSource Either string containing route id or DOM Event object either click/touch on element containing `href=\"#routeid\"` or Hash URL change event\n     */\n    doRoute(routeSource) {\n        const container = this.routeContainerEl\n        if (!container) throw new Error('[uibrouter:doRoute] Cannot route, has router.setup() been called yet?')\n\n        // Remove all the url and query param text and any leading # - returns '' if no current hash\n        const currentHash = this.keepHashFromUrl(window.location.hash)\n\n        // If no route source provided, take the current hash (which might be '' and that will trigger the default route if defined)\n        if (!routeSource) routeSource = currentHash\n\n        let newRouteId, oldRouteId\n\n        // Define new and old routes depending on different call types\n        if (typeof routeSource === 'string') { // Manually provided route id\n            // console.log(`[uibrouter:doRoute] manual: ${currentHash} => ${this.keepHashFromUrl(routeSource)}. Current: ${currentHash}` )\n            newRouteId = this.keepHashFromUrl(routeSource)\n            oldRouteId = currentHash\n            // If no hash & config has default, set the default as new\n            if (newRouteId === '' && this.config.defaultRoute) newRouteId = this.config.defaultRoute\n            // If the new route id not the same as the current one in the url hash, just change the current hash & exit\n            if (newRouteId !== currentHash ) {\n                window.location.hash = `#${newRouteId}`\n                return\n            }\n        } else if (routeSource.type === 'hashchange') { // A URL Hash change event\n            // console.log(`[uibrouter:doRoute] hashchange: ${this.keepHashFromUrl(routeSource.oldURL)} => ${this.keepHashFromUrl(routeSource.newURL)}. Current: ${currentHash}` )\n            const newUrl = routeSource.newURL\n            // Check if URL actually contains a #\n            if (newUrl.includes('#')) {\n                oldRouteId = this.keepHashFromUrl(routeSource.oldURL)\n                newRouteId = this.keepHashFromUrl(newUrl) // Only keep anything after the # & ignoring query params\n            } else return\n        } else { // A mouse click/touch event on a dom element with an href attribute\n            oldRouteId = currentHash\n            // Try to get the route name from the URL hash\n            try {\n                newRouteId = this.keepHashFromUrl(routeSource.target.attributes.href.value) // Only keep anything after the # & ignoring query params\n            } catch (e) {\n                throw new Error('[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute')\n            }\n        }\n\n        let routeShown = false\n\n        // If no defined valid route, undo and throw error\n        if (!newRouteId || !this.routeList().includes(newRouteId)) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            throw new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${newRouteId}'`)\n        }\n\n        // Show the new container (replace or show)\n        if (this.config.hide) {\n            // config.hide = true so hide previous contents\n            if (oldRouteId) {\n                /** @type {HTMLElement|null} */\n                const oldContent = document.querySelector(`div[data-route=\"${oldRouteId}\"]`)\n                if (oldContent) oldContent.style.display = 'none'\n            }\n            /** and unhide new route if possible @type {HTMLElement|null} */\n            const content = document.querySelector(`div[data-route=\"${newRouteId}\"]`)\n            if (content) {\n                content.style.removeProperty('display')\n                routeShown = true\n            } else {\n                // else create new content from template\n                routeShown = this._createRouteContent(newRouteId)\n            }\n        } else {\n            // config.hide != true so remove previous contents\n            container.replaceChildren()\n            // Create new content from template\n            routeShown = this._createRouteContent(newRouteId)\n        }\n\n        // console.log({ newRouteId, oldRouteId, currentHash, routeShown })\n\n        // Roll back the route change if the new route cannot be shown\n        if (routeShown === false) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            return\n        }\n\n        // Retain current and previous route id's\n        this.currentRouteId = newRouteId\n        this.previousRouteId = oldRouteId\n\n        // Record the current route on the route container\n        container.dataset.currentRoute = newRouteId\n\n        // Events on route changed ...\n        document.dispatchEvent(new CustomEvent('uibrouter:route-changed', { detail: { newRouteId, oldRouteId } }))\n        if (uibuilder) uibuilder.set('uibrouter', 'route changed') // eslint-disable-line no-undef\n    }\n\n    /** Return a route config given a route id (returns undefined if route not found)\n     * @param {string} routeId Route ID to search for\n     * @returns {routeDefinition|undefined} Route config for found id else undefined\n     */\n    getRouteConfigById(routeId) {\n        return Object.values(this.config.routes).filter(r => r.id === routeId)[0]\n    }\n\n    /** Return true if the given route is external, false otherwise\n     * Used to correctly (re)apply script tags when cloning the template to the DOM (createRouteContent)\n     * @param {string} routeId Route ID to check\n     * @returns {boolean} True if the given route is external, false otherwise\n     */\n    isRouteExternal(routeId) {\n        const routeConfig = this.getRouteConfigById(routeId)\n        return !!(routeConfig && routeConfig.type === 'url')\n    }\n\n    /** Go to the default route if it has been specified */\n    defaultRoute() {\n        if (this.config.defaultRoute) this.doRoute(this.config.defaultRoute)\n    }\n\n    removeHash() {\n        history.pushState('', document.title, window.location.pathname + window.location.search)\n    }\n\n    /** Empty the current container and remove url hash - does not trigger a route change */\n    noRoute() {\n        this.removeHash()\n        this.routeContainerEl.replaceChildren()\n    }\n\n    /** Only keep anything after the # & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Return an array of route ids (to facilitate creation of menus)\n     * @param {boolean} returnHash If true, returns id's with leading `#` to apply to href attributes else returns the id\n     * @returns {string[]} Array of route id's or route url hashes\n     */\n    routeList(returnHash) {\n        return Object.values(this.config.routes).map((r) => returnHash === true ? `#${r.id}` : r.id)\n    }\n\n    /** Add new route definitions to the existing ones\n     * @param {routeDefinition|routeDefinition[]} routeConfig Single or array of route definitions to add\n     */\n    addRoutes(routeConfig) {\n        if (!Array.isArray(routeConfig)) routeConfig = [routeConfig]\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routeConfig).filter(r => r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded - Add new routes to config\n                this.config.routes.push(...routeConfig)\n                // Let everyone know it all finished\n                document.dispatchEvent(new CustomEvent('uibrouter:routes-added', { detail: routeConfig }))\n                if (uibuilder) uibuilder.set('uibrouter', 'routes added') // eslint-disable-line no-undef, promise/always-return\n            } )\n    }\n\n    // TODO\n    // deleteRoutes(aRoutes) {\n    //     // Delete all if no list provided\n    //     if (!aRoutes) aRoutes = this.config.routes\n    //     if (!Array.isArray(aRoutes)) aRoutes = [aRoutes]\n    //     console.log('to be deleted', this.config.routes.filter(r => aRoutes.includes(r.id)))\n    //     console.log('to be retained', this.config.routes.filter(r => !aRoutes.includes(r.id)))\n\n    //     // TODO actually remove the unwanted route templates\n    //     // TODO remove from the config: this.config.routes = this.config.routes.filter(r => !aRoutes.includes(r.id))\n\n    //     // ? Optional future upgrade - attempt to also remove any links to this route?\n    // }\n\n    // TODO\n    // deleteTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO delete\n    //     } )\n    // }\n\n    // TODO\n    // reloadTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO reload\n    //     } )\n    // }\n} // ---- End of class ----\n\n// For use in ESM loads\nexport { UibRouter }\nexport default UibRouter\n\n// Auto-assign for when the library is loaded via a script tag\nif (!window['UibRouter']) {\n    window['UibRouter'] = UibRouter\n} else {\n    console.warn('`UibRouter` already assigned to window. Have you tried to load it more than once?')\n}\n"],
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   "names": ["_startDone", "UibRouter", "routerConfig", "__publicField", "__privateAdd", "r", "body", "routeContainerEl", "tempContainer", "loadedElements", "head", "element", "__privateGet", "event", "__privateSet", "routeId", "rContent", "docFrag", "e", "routeDefinition", "id", "response", "htmlText", "chkTemplate", "error", "scr", "newScript", "routeSource", "container", "currentHash", "newRouteId", "oldRouteId", "newUrl", "routeShown", "oldContent", "content", "routeConfig", "url", "returnHash", "uibrouter_default", "UibRouter"]
 }
diff --git a/src/front-end-module/uibrouter.js b/src/front-end-module/uibrouter.js
index 0d62a3dd..6a781223 100644
--- a/src/front-end-module/uibrouter.js
+++ b/src/front-end-module/uibrouter.js
@@ -50,7 +50,7 @@
 class UibRouter { // eslint-disable-line no-unused-vars
     //#region --- Variables ---
     /** Class version */
-    static version = '1.0.0'
+    static version = '1.0.1'
 
     /** Configuration settings @type {UibRouterConfig} */
     config

From 72dced844b42d03a685ebfb793cc0f0692914d77 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Fri, 24 Nov 2023 19:52:40 +0000
Subject: [PATCH 04/78] Upd external cmd list. Fix socket meta-data & simplify.
 Deprecate elementIsVisible. New navigate & scrollTo fns. Bump to v6.8

---
 front-end/uibuilder.esm.js               | 198 ++++++++++---------
 front-end/uibuilder.esm.min.js           |   2 +-
 front-end/uibuilder.esm.min.js.map       |   6 +-
 front-end/uibuilder.iife.js              | 198 ++++++++++---------
 front-end/uibuilder.iife.min.js          |   2 +-
 front-end/uibuilder.iife.min.js.map      |   6 +-
 src/front-end-module/uibuilder.module.js | 230 +++++++++++------------
 7 files changed, 347 insertions(+), 295 deletions(-)

diff --git a/front-end/uibuilder.esm.js b/front-end/uibuilder.esm.js
index 5e757d12..ac497faa 100644
--- a/front-end/uibuilder.esm.js
+++ b/front-end/uibuilder.esm.js
@@ -62,7 +62,7 @@ var require_ui = __commonJS({
        * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input
        */
       constructor(win, extLog, jsonHighlight) {
-        __publicField(this, "version", "6.6.0-src");
+        __publicField(this, "version", "6.8.0-src");
         // List of tags and attributes not in sanitise defaults but allowed in uibuilder.
         __publicField(this, "sanitiseExtraTags", ["uib-var"]);
         __publicField(this, "sanitiseExtraAttribs", ["variable", "report", "undefined"]);
@@ -2360,6 +2360,9 @@ var parts = [
   "anchor"
 ];
 function parse(str) {
+  if (str.length > 2e3) {
+    throw "URI too long";
+  }
   const src = str, b = str.indexOf("["), e = str.indexOf("]");
   if (b != -1 && e != -1) {
     str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ";") + str.substring(e, str.length);
@@ -4472,7 +4475,7 @@ Object.assign(lookup2, {
 });
 
 // src/front-end-module/uibuilder.module.js
-var version = "6.6.0-esm";
+var version = "6.8.0-esm";
 var isMinified = !/param/.test(function(param) {
 });
 var logLevel = isMinified ? 0 : 1;
@@ -4650,7 +4653,7 @@ function syntaxHighlight(json) {
   return json;
 }
 var _ui = new import_ui.default(window, log, syntaxHighlight);
-var _a, _pingInterval, _propChangeCallbacks, _msgRecvdByTopicCallbacks, _timerid, _MsgHandler, _isShowMsg, _isShowStatus, _intersectionObserver, _sendUrlHash, _extCommands, _managedVars, _showStatus, _uiObservers;
+var _a, _pingInterval, _propChangeCallbacks, _msgRecvdByTopicCallbacks, _timerid, _MsgHandler, _isShowMsg, _isShowStatus, _sendUrlHash, _extCommands, _managedVars, _showStatus, _uiObservers;
 var Uib = (_a = class {
   // ---- End of ioSetup ---- //
   //#endregion -------- ------------ -------- //
@@ -4688,23 +4691,24 @@ var Uib = (_a = class {
     __privateAdd(this, _isShowMsg, false);
     // Has showStatus been turned on?
     __privateAdd(this, _isShowStatus, false);
-    // Has an IntersectionObserver been created? If so, this will hold the reference to it
-    __privateAdd(this, _intersectionObserver, void 0);
     // If true, URL hash changes send msg back to node-red. Controlled by watchUrlHash()
     __privateAdd(this, _sendUrlHash, false);
     // Externally accessible command functions (NB: Case must match) - remember to update _uibCommand for new commands
     __privateAdd(this, _extCommands, [
+      "elementExists",
       "get",
-      "set",
+      "getManagedVarList",
+      "getWatchedVars",
       "htmlSend",
+      "include",
+      "navigate",
+      "scrollTo",
+      "set",
       "showMsg",
       "showStatus",
       "uiGet",
       "uiWatch",
-      "include",
-      "elementExists",
-      "getManagedVarList",
-      "getWatchedVars"
+      "watchUrlHash"
     ]);
     /** @type {{[key: string]: string}} Managed uibuilder variables */
     __privateAdd(this, _managedVars, {});
@@ -4805,17 +4809,26 @@ var Uib = (_a = class {
     __publicField(this, "storePrefix", "uib_");
     // Prefix for all uib-related localStorage
     __publicField(this, "started", false);
+    // NOTE: These can only change when a client (re)connects
     __publicField(this, "socketOptions", {
       path: this.ioPath,
       transports: ["polling", "websocket"],
-      auth: {
-        clientVersion: version,
-        clientId: this.clientId,
-        pathName: window.location.pathname,
-        urlParams: Object.fromEntries(new URLSearchParams(location.search)),
-        pageName: void 0,
-        tabId: void 0,
-        lastNavType: void 0
+      // Using callback so that they are updated automatically on (re)connect
+      // Only put things in here that will be valid for a websocket connected session
+      auth: (cb) => {
+        cb({
+          // eslint-disable-line n/no-callback-literal
+          clientVersion: version,
+          clientId: this.clientId,
+          pathName: window.location.pathname,
+          urlParams: Object.fromEntries(new URLSearchParams(location.search)),
+          pageName: this.pageName,
+          tabId: this.tabId,
+          lastNavType: this.lastNavType,
+          connectedNum: ++this.connectedNum,
+          // Used to calculate the diff between the server and client connection timestamps - reported if >1 minute
+          browserConnectTimestamp: (/* @__PURE__ */ new Date()).toISOString()
+        });
       },
       transportOptions: {
         // Can only set headers when polling
@@ -5243,45 +5256,17 @@ var Uib = (_a = class {
     navigator.clipboard.writeText(data);
   }
   // --- End of copyToClipboard --- //
-  /** Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.
+  /** DEPRECATED FOR NOW - wasn't working properly.
+   * Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.
    * Requires IntersectionObserver (available to all mainstream browsers from early 2019)
    * Automatically sends a msg back to Node-RED.
    * Requires the element to already exist.
-   * @param {string} cssSelector Required. CSS Selector to examine for visibility
-   * @param {boolean} stop Optional. Default=false. If TRUE, stop the observer for this cssSelector
-   * @param {number} threshold Optional. Default=0.1. Between 0 and 1, the % visibility before trigger
    */
-  elementIsVisible(cssSelector, stop = false, threshold = 0.1) {
-    if (!IntersectionObserver)
-      return;
-    if (!__privateGet(this, _intersectionObserver)) {
-      __privateSet(this, _intersectionObserver, new IntersectionObserver((ioEntries) => {
-        const entries = [];
-        ioEntries.forEach((entry) => {
-          entry.target.dataset.isvisible = entry.isIntersecting;
-          entries.push({
-            isIntersecting: entry.isIntersecting
-          });
-        });
-        this.send({
-          payload: entries[0].isIntersecting,
-          isVisible: entries[0].isIntersecting,
-          cssSelector,
-          entries
-        });
-        log("info", "uib:elementIsVisible", `Element "${cssSelector}" is now ${entries[0].isIntersecting ? "more than 10%" : "NOT (<10%)"} visible`)();
-      }, { threshold }));
-    }
-    const el = document.querySelector(cssSelector);
-    if (el === null) {
-      log("error", "uib:elementIsVisible", `Element "${cssSelector}" not found`)();
-      return;
-    }
-    if (stop === true) {
-      __privateGet(this, _intersectionObserver).unobserve(el);
-      return;
-    }
-    __privateGet(this, _intersectionObserver).observe(el);
+  elementIsVisible() {
+    const info = "elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex";
+    log("error", "uib:elementIsVisible", info)();
+    this.send({ payload: "elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex" });
+    return false;
   }
   // --- End of elementIsVisible --- //
   /** Does the chosen CSS Selector currently exist?
@@ -5348,6 +5333,15 @@ var Uib = (_a = class {
     __privateSet(this, _sendUrlHash, this.truthy(toggle, __privateGet(this, _sendUrlHash) !== true));
     return __privateGet(this, _sendUrlHash);
   }
+  /** Navigate to a new page or a new route (hash)
+   * @param {string} url URL to navigate to. Can be absolute or relative (to current page) or just a hash for a route change
+   * @returns {Location} The new window.location string
+   */
+  navigate(url2) {
+    if (url2)
+      window.location.href = url2;
+    return window.location;
+  }
   //#endregion -------- -------- -------- //
   //#region ------- UI handlers --------- //
   //#region -- Direct to _ui --
@@ -5558,6 +5552,28 @@ var Uib = (_a = class {
     });
     return null;
   }
+  /** Scroll the page
+   * https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollIntoView
+   * @param {string} [cssSelector] Optional. If not set, scrolls to top of page.
+   * @param {{block:(string|undefined),inline:(string|undefined),behavior:(string|undefined)}} [opts] Optional. DOM scrollIntoView options
+   * @returns {boolean} True if element was found, false otherwise
+   */
+  scrollTo(cssSelector, opts) {
+    if (!opts)
+      opts = {};
+    if (!cssSelector || cssSelector === "top" || cssSelector === "start")
+      cssSelector = "body";
+    else if (cssSelector === "bottom" || cssSelector === "end") {
+      cssSelector = "body";
+      opts.block = "end";
+    }
+    const el = this.$(cssSelector);
+    if (el) {
+      el.scrollIntoView(opts);
+      return true;
+    }
+    return false;
+  }
   /** Show/hide a display card on the end of the visible HTML that will dynamically display the current status of the uibuilder client
    * The card has the id `uib_status`.
    * The display is updated by an event listener created in the class constructor.
@@ -5769,9 +5785,6 @@ var Uib = (_a = class {
       msgToSend.from = "client";
     }
     msgToSend._socketId = this._socket.id;
-    this.socketOptions.auth.tabId = this.tabId;
-    this.socketOptions.auth.lastNavType = this.lastNavType;
-    this.socketOptions.auth.connectedNum = this.connectedNum;
     if (originator === "" && this.originator !== "")
       originator = this.originator;
     if (originator !== "")
@@ -5996,6 +6009,12 @@ ${document.documentElement.outerHTML}`;
    * @param {object} msg Msg from Node-RED containing a msg._uib object
    */
   _uibCommand(msg) {
+    if (!msg._uib || !msg._uib.command) {
+      log("error", "uibuilder:_uibCommand", "Invalid command message received", { msg })();
+      msg.payload = msg.error = "Invalid command message received";
+      this.send(msg);
+      return;
+    }
     const cmd = msg._uib.command;
     if (!__privateGet(this, _extCommands).includes(cmd.trim())) {
       log("error", "Uib:_uibCommand", `Command '${cmd} is not allowed to be called externally`)();
@@ -6003,8 +6022,13 @@ ${document.documentElement.outerHTML}`;
     }
     const prop = msg._uib.prop;
     const value2 = msg._uib.value;
+    const quiet = msg._uib.quiet ?? false;
     let response, info;
     switch (cmd) {
+      case "elementIsVisible": {
+        response = this.elementIsVisible(prop);
+        break;
+      }
       case "elementExists": {
         response = this.elementExists(prop, false);
         info = `Element "${prop}" ${response ? "exists" : "does not exist"}`;
@@ -6036,6 +6060,19 @@ ${document.documentElement.outerHTML}`;
         response = _ui.include(prop, value2);
         break;
       }
+      case "navigate": {
+        let newUrl;
+        if (prop)
+          newUrl = prop;
+        else if (value2)
+          newUrl = value2;
+        response = this.navigate(newUrl);
+        break;
+      }
+      case "scrollTo": {
+        response = this.scrollTo(prop, value2);
+        break;
+      }
       case "set": {
         let store = false;
         let autoload = false;
@@ -6073,26 +6110,28 @@ ${document.documentElement.outerHTML}`;
         break;
       }
     }
-    if (response === void 0) {
-      response = `'${prop}' is undefined`;
-    }
-    if (Object(response).constructor === Promise) {
-      response.then((data) => {
-        msg.payload = msg._uib.response = data;
+    if (quiet !== true) {
+      if (response === void 0) {
+        response = `'${prop}' is undefined`;
+      }
+      if (Object(response).constructor === Promise) {
+        response.then((data) => {
+          msg.payload = msg._uib.response = data;
+          msg.info = msg._uib.info = info;
+          if (!msg.topic)
+            msg.topic = this.topic || `uib ${cmd} for '${prop}'`;
+          this.send(msg);
+          return true;
+        }).catch((err) => {
+          log(0, "Uib:_uibCommand", "Error: ", err)();
+        });
+      } else {
+        msg.payload = msg._uib.response = response;
         msg.info = msg._uib.info = info;
         if (!msg.topic)
           msg.topic = this.topic || `uib ${cmd} for '${prop}'`;
         this.send(msg);
-        return true;
-      }).catch((err) => {
-        log(0, "Uib:_uibCommand", "Error: ", err)();
-      });
-    } else {
-      msg.payload = msg._uib.response = response;
-      msg.info = msg._uib.info = info;
-      if (!msg.topic)
-        msg.topic = this.topic || `uib ${cmd} for '${prop}'`;
-      this.send(msg);
+      }
     }
   }
   // --- end of _uibCommand ---
@@ -6220,7 +6259,7 @@ Server time: ${receivedCtrlMsg.serverTimestamp}, Sever time offset: ${this.serve
     navigator.sendBeacon("./_clientLog", `${logLevel2}::${txtToSend}`);
   }
   /** Send log info back to Node-RED over uibuilder's websocket control output (Port #2)
-   * -@param {...*} arguments All arguments passed to the function are added to the msg.payload
+   * @param {...*} arguments All arguments passed to the function are added to the msg.payload
    */
   logToServer() {
     this.sendCtrl({
@@ -6306,11 +6345,6 @@ Server time: ${receivedCtrlMsg.serverTimestamp}, Sever time offset: ${this.serve
   // See message handling section for msg receipt handlers
   /** Called by _ioSetup when Socket.IO connects to Node-RED */
   _onConnect() {
-    this.set("connectedNum", this.connectedNum++);
-    this.socketOptions.auth.connectedNum = this.connectedNum;
-    this.socketOptions.auth.lastNavType = this.lastNavType;
-    this.socketOptions.auth.tabId = this.tabId;
-    this.socketOptions.auth.more = this.tabId;
     log("info", "Uib:ioSetup", `\u2705 SOCKET CONNECTED. Connection count: ${this.connectedNum}, Is a Recovery?: ${this._socket.recovered}. 
 Namespace: ${this.ioNamespace}`)();
     this._dispatchCustomEvent("uibuilder:socket:connected", { "numConnections": this.connectedNum, "isRecovery": this._socket.recovered });
@@ -6345,12 +6379,6 @@ Namespace: ${this.ioNamespace}`)();
       this.set("ioConnected", false);
     }
     this.socketOptions.path = this.ioPath;
-    this.socketOptions.auth.pageName = this.pageName;
-    this.socketOptions.auth.clientId = this.clientId;
-    this.socketOptions.transportOptions.polling.extraHeaders["x-clientid"] = `${_a._meta.displayName}; ${_a._meta.type}; ${_a._meta.version}; ${this.clientId}`;
-    this.socketOptions.auth.tabId = this.tabId;
-    this.socketOptions.auth.lastNavType = this.lastNavType;
-    this.socketOptions.auth.connectedNum = this.connectedNum;
     log("trace", "Uib:ioSetup", `About to create IO object. Transports: [${this.socketOptions.transports.join(", ")}]`)();
     this._socket = lookup2(this.ioNamespace, this.socketOptions);
     this._socket.on("connect", this._onConnect.bind(this));
@@ -6449,7 +6477,7 @@ ioPath: ${this.ioPath}`)();
     this._dispatchCustomEvent("uibuilder:startComplete");
   }
   //#endregion -------- ------------ -------- //
-}, _pingInterval = new WeakMap(), _propChangeCallbacks = new WeakMap(), _msgRecvdByTopicCallbacks = new WeakMap(), _timerid = new WeakMap(), _MsgHandler = new WeakMap(), _isShowMsg = new WeakMap(), _isShowStatus = new WeakMap(), _intersectionObserver = new WeakMap(), _sendUrlHash = new WeakMap(), _extCommands = new WeakMap(), _managedVars = new WeakMap(), _showStatus = new WeakMap(), _uiObservers = new WeakMap(), //#region --- Static variables ---
+}, _pingInterval = new WeakMap(), _propChangeCallbacks = new WeakMap(), _msgRecvdByTopicCallbacks = new WeakMap(), _timerid = new WeakMap(), _MsgHandler = new WeakMap(), _isShowMsg = new WeakMap(), _isShowStatus = new WeakMap(), _sendUrlHash = new WeakMap(), _extCommands = new WeakMap(), _managedVars = new WeakMap(), _showStatus = new WeakMap(), _uiObservers = new WeakMap(), //#region --- Static variables ---
 __publicField(_a, "_meta", {
   version,
   type: "module",
diff --git a/front-end/uibuilder.esm.min.js b/front-end/uibuilder.esm.min.js
index a4e1459c..b9930eed 100644
--- a/front-end/uibuilder.esm.min.js
+++ b/front-end/uibuilder.esm.min.js
@@ -1,2 +1,2 @@
-var Et=Object.create;var he=Object.defineProperty;var Ct=Object.getOwnPropertyDescriptor;var St=Object.getOwnPropertyNames;var Nt=Object.getPrototypeOf,xt=Object.prototype.hasOwnProperty;var Ot=(s,e,t)=>e in s?he(s,e,{enumerable:!0,configurable:!0,writable:!0,value:t}):s[e]=t;var De=(s=>typeof require<"u"?require:typeof Proxy<"u"?new Proxy(s,{get:(e,t)=>(typeof require<"u"?require:e)[t]}):s)(function(s){if(typeof require<"u")return require.apply(this,arguments);throw Error('Dynamic require of "'+s+'" is not supported')});var Rt=(s,e)=>()=>(e||s((e={exports:{}}).exports,e),e.exports),At=(s,e)=>{for(var t in e)he(s,t,{get:e[t],enumerable:!0})},Tt=(s,e,t,i)=>{if(e&&typeof e=="object"||typeof e=="function")for(let r of St(e))!xt.call(s,r)&&r!==t&&he(s,r,{get:()=>e[r],enumerable:!(i=Ct(e,r))||i.enumerable});return s};var Ee=(s,e,t)=>(t=s!=null?Et(Nt(s)):{},Tt(e||!s||!s.__esModule?he(t,"default",{value:s,enumerable:!0}):t,s));var h=(s,e,t)=>(Ot(s,typeof e!="symbol"?e+"":e,t),t),Pe=(s,e,t)=>{if(!e.has(s))throw TypeError("Cannot "+t)};var u=(s,e,t)=>(Pe(s,e,"read from private field"),t?t.call(s):e.get(s)),E=(s,e,t)=>{if(e.has(s))throw TypeError("Cannot add the same private member more than once");e instanceof WeakSet?e.add(s):e.set(s,t)},x=(s,e,t,i)=>(Pe(s,e,"write to private field"),i?i.call(s,t):e.set(s,t),t);var He=Rt((si,qe)=>{var d,$t=(d=class{constructor(e,t,i){h(this,"version","6.6.0-src");h(this,"sanitiseExtraTags",["uib-var"]);h(this,"sanitiseExtraAttribs",["variable","report","undefined"]);h(this,"window");if(e)this.window=e;else throw new Error("Ui:constructor. Current environment does not include `window`, UI functions cannot be used.");this.document=this.window.document,t?d.log=t:d.log=function(){return function(){}},i?this.syntaxHighlight=i:this.syntaxHighlight=function(){}}ui(e){let t={};e._ui?t=e:t._ui=e,this._uiManager(t)}replaceSlot(e,t){t.slot&&e&&(this.window.DOMPurify&&(t.slot=this.window.DOMPurify.sanitize(t.slot)),e.innerHTML=t.slot)}convertMarkdown(e){if(!e)return"";if(!this.window.markdownit)return e;let t={html:!0,linkify:!0,_highlight:!0,langPrefix:"language-",highlight(r,n){if(n&&this.window.hljs&&this.window.hljs.getLanguage(n))try{return'<pre class="highlight" data-language="'.concat(n.toUpperCase(),'">\n                                <code class="language-').concat(n,'">').concat(this.window.hljs.highlightAuto(r).value,"</code></pre>")}finally{}return'<pre class="highlight"><code>'.concat(i.utils.escapeHtml(r),"</code></pre>")}},i=this.window.markdownit(t);return i.render(e)}sanitiseHTML(e){return this.window.DOMPurify?this.window.DOMPurify.sanitize(e,{ADD_TAGS:this.sanitiseExtraTags,ADD_ATTR:this.sanitiseExtraAttribs}):e}replaceSlotMarkdown(e,t){e&&t.slotMarkdown&&(t.slotMarkdown=this.convertMarkdown(t.slotMarkdown),t.slotMarkdown=this.sanitiseHTML(t.slotMarkdown),e.innerHTML=t.slotMarkdown)}loadScriptSrc(e){let t=this.document.createElement("script");t.src=e,t.async=!1,this.document.head.appendChild(t)}loadStyleSrc(e){let t=this.document.createElement("link");t.href=e,t.rel="stylesheet",t.type="text/css",this.document.head.appendChild(t)}loadScriptTxt(e){let t=this.document.createElement("script");t.async=!1,t.textContent=e,this.document.head.appendChild(t)}loadStyleTxt(e){let t=this.document.createElement("style");t.textContent=e,this.document.head.appendChild(t)}showDialog(e,t,i){let r="";if(i.payload&&typeof i.payload=="string"&&(r+=i.payload),t.content&&(r+=t.content),r===""){d.log(1,"Ui:showDialog","Toast content is blank. Not shown.")();return}!t.title&&i.topic&&(t.title=i.topic),t.title&&(r='<p class="toast-head">'.concat(t.title,"</p><p>").concat(r,"</p>")),t.noAutohide&&(t.noAutoHide=t.noAutohide),t.noAutoHide&&(t.autohide=!t.noAutoHide),t.autoHideDelay?(t.autohide||(t.autohide=!0),t.delay=t.autoHideDelay):t.autoHideDelay=1e4,Object.prototype.hasOwnProperty.call(t,"autohide")||(t.autohide=!0),e==="alert"&&(t.modal=!0,t.autohide=!1,r='<svg viewBox="0 0 192.146 192.146" style="width:30;background-color:transparent;"><path d="M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z" /></svg> '.concat(r));let n=this.document.getElementById("toaster");n===null&&(n=this.document.createElement("div"),n.id="toaster",n.title="Click to clear all notifcations",n.setAttribute("class","toaster"),n.setAttribute("role","dialog"),n.setAttribute("arial-label","Toast message"),n.onclick=function(){n.remove()},this.document.body.insertAdjacentElement("afterbegin",n));let o=this.document.createElement("div");o.title="Click to clear this notifcation",o.setAttribute("class","toast ".concat(t.variant?t.variant:""," ").concat(e)),o.innerHTML=r,o.setAttribute("role","alertdialog"),t.modal&&o.setAttribute("aria-modal",t.modal),o.onclick=function(c){c.stopPropagation(),o.remove(),n.childElementCount<1&&n.remove()},n.insertAdjacentElement(t.appendToast===!0?"beforeend":"afterbegin",o),t.autohide===!0&&setInterval(()=>{o.remove(),n.childElementCount<1&&n.remove()},t.autoHideDelay)}_showNotification(e){e.topic&&!e.title&&(e.title=e.topic),e.title||(e.title="uibuilder notification"),e.payload&&!e.body&&(e.body=e.payload),e.body||(e.body=" No message given.");try{let t=new Notification(e.title,e);return new Promise((i,r)=>{t.addEventListener("close",n=>{n.currentTarget.userAction="close",i(n)}),t.addEventListener("click",n=>{n.currentTarget.userAction="click",i(n)}),t.addEventListener("error",n=>{n.currentTarget.userAction="error",r(n)})})}catch{return Promise.reject(new Error("Browser refused to create a Notification"))}}async notification(e){if(typeof e=="string"&&(e={body:e}),typeof Notification>"u")return Promise.reject(new Error("Notifications not available in this browser"));let t=Notification.permission;return t==="denied"?Promise.reject(new Error("Notifications not permitted by user")):t==="granted"?this._showNotification(e):(t=await Notification.requestPermission(),t==="granted"?this._showNotification(e):Promise.reject(new Error("Notifications not permitted by user")))}loadui(e){if(!fetch){d.log(0,"Ui:loadui","Current environment does not include `fetch`, skipping.")();return}if(!e){d.log(0,"Ui:loadui","url parameter must be provided, skipping.")();return}fetch(e).then(t=>{if(t.ok===!1)throw new Error("Could not load '".concat(e,"'. Status ").concat(t.status,", Error: ").concat(t.statusText));d.log("trace","Ui:loadui:then1","Loaded '".concat(e,"'. Status ").concat(t.status,", ").concat(t.statusText))();let i=t.headers.get("content-type");if(!i||!i.includes("application/json"))throw new TypeError("Fetch '".concat(e,"' did not return JSON, ignoring"));return t.json()}).then(t=>t!==void 0?(d.log("trace","Ui:loadui:then2","Parsed JSON successfully obtained")(),this._uiManager({_ui:t}),!0):!1).catch(t=>{d.log("warn","Ui:loadui:catch","Error. ",t)()})}_uiComposeComponent(e,t){t.attributes&&Object.keys(t.attributes).forEach(i=>{i==="value"&&(e.value=t.attributes[i]),i.startsWith("xlink:")?e.setAttributeNS("http://www.w3.org/1999/xlink",i,t.attributes[i]):e.setAttribute(i,t.attributes[i])}),t.id&&e.setAttribute("id",t.id),t.type==="svg"&&(e.setAttributeNS("http://www.w3.org/2000/xmlns/","xmlns","http://www.w3.org/2000/svg"),e.setAttributeNS("http://www.w3.org/2000/xmlns/","xmlns:xlink","http://www.w3.org/1999/xlink")),t.events&&Object.keys(t.events).forEach(i=>{i.toLowerCase==="onclick"&&(i="click");try{e.addEventListener(i,r=>{new Function("evt","".concat(t.events[i],"(evt)"))(r)})}catch(r){d.log("error","Ui:_uiComposeComponent","Add event '".concat(i,"' for element '").concat(t.type,"': Cannot add event handler. ").concat(r.message))()}}),t.properties&&Object.keys(t.properties).forEach(i=>{e[i]=t.properties[i]}),t.slot&&this.replaceSlot(e,t),t.slotMarkdown&&this.replaceSlotMarkdown(e,t)}uiEnhanceElement(e,t){this._uiComposeComponent(e,t)}_uiExtendEl(e,t,i=""){t.forEach((r,n)=>{d.log("trace","Ui:_uiExtendEl:components-forEach:".concat(n),r)();let o;r.ns=i,r.ns==="html"?(o=e,e.innerHTML=r.slot):r.ns==="svg"?(o=this.document.createElementNS("http://www.w3.org/2000/svg",r.type),this._uiComposeComponent(o,r),e.appendChild(o)):(o=this.document.createElement(r.type==="html"?"div":r.type),this._uiComposeComponent(o,r),e.appendChild(o)),r.components&&this._uiExtendEl(o,r.components,r.ns)})}_uiAdd(e,t){d.log("trace","Ui:_uiManager:add","Starting _uiAdd")(),e.components.forEach((i,r)=>{d.log("trace","Ui:_uiAdd:components-forEach:".concat(r),"Component to add: ",i)();let n;switch(i.type){case"html":{i.ns="html",n=this.document.createElement("div");break}case"svg":{i.ns="svg",n=this.document.createElementNS("http://www.w3.org/2000/svg","svg");break}default:{i.ns="dom",n=this.document.createElement(i.type);break}}!i.slot&&e.payload&&(i.slot=e.payload),this._uiComposeComponent(n,i);let o;i.parentEl?o=i.parentEl:e.parentEl?o=e.parentEl:i.parent?o=this.document.querySelector(i.parent):e.parent&&(o=this.document.querySelector(e.parent)),o||(d.log("info","Ui:_uiAdd","No parent found, adding to body")(),o=this.document.querySelector("body")),i.position&&i.position==="first"?o.insertBefore(n,o.firstChild):i.position&&Number.isInteger(Number(i.position))?o.insertBefore(n,o.children[i.position]):o.appendChild(n),i.components&&this._uiExtendEl(n,i.components,i.ns)})}_uiRemove(e,t=!1){e.components.forEach(i=>{let r;t!==!0?r=[this.document.querySelector(i)]:r=this.document.querySelectorAll(i),r.forEach(n=>{try{n.remove()}catch(o){d.log("trace","Ui:_uiRemove","Could not remove. ".concat(o.message))()}})})}_uiReplace(e){d.log("trace","Ui:_uiReplace","Starting")(),e.components.forEach((t,i)=>{d.log("trace","Ui:_uiReplace:components-forEach:".concat(i),"Component to replace: ",t)();let r;if(t.id?r=this.document.getElementById(t.id):t.selector||t.select?r=this.document.querySelector(t.selector):t.name?r=this.document.querySelector('[name="'.concat(t.name,'"]')):t.type&&(r=this.document.querySelector(t.type)),d.log("trace","Ui:_uiReplace:components-forEach:".concat(i),"Element to replace: ",r)(),r==null){d.log("trace","Ui:_uiReplace:components-forEach:".concat(i,":noReplace"),"Cannot find the DOM element. Adding instead.",t)(),this._uiAdd({components:[t]},!1);return}let n;switch(t.type){case"html":{t.ns="html",n=this.document.createElement("div");break}case"svg":{t.ns="svg",n=this.document.createElementNS("http://www.w3.org/2000/svg","svg");break}default:{t.ns="dom",n=this.document.createElement(t.type);break}}this._uiComposeComponent(n,t),r.replaceWith(n),t.components&&this._uiExtendEl(n,t.components,t.ns)})}_uiUpdate(e){d.log("trace","Ui:_uiManager:update","Starting _uiUpdate")(),e.components||(e.components=[Object.assign({},e)]),e.components.forEach((t,i)=>{d.log("trace","_uiUpdate:components-forEach","Component #".concat(i),t)();let r;if(t.id?r=this.document.querySelectorAll("#".concat(t.id)):t.selector||t.select?r=this.document.querySelectorAll(t.selector):t.name?r=this.document.querySelectorAll('[name="'.concat(t.name,'"]')):t.type&&(r=this.document.querySelectorAll(t.type)),r===void 0||r.length<1){d.log("warn","Ui:_uiManager:update","Cannot find the DOM element. Ignoring.",t)();return}d.log("trace","_uiUpdate:components-forEach","Element(s) to update. 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this.emitReserved("error",r)}this.ws.binaryType=this.socket.binaryType,this.addEventListeners()}addEventListeners(){this.ws.onopen=()=>{this.opts.autoUnref&&this.ws._socket.unref(),this.onOpen()},this.ws.onclose=e=>this.onClose({description:"websocket connection closed",context:e}),this.ws.onmessage=e=>this.onData(e.data),this.ws.onerror=e=>this.onError("websocket error",e)}write(e){this.writable=!1;for(let t=0;t<e.length;t++){let i=e[t],r=t===e.length-1;ee(i,this.supportsBinary,n=>{let o={};ye||(i.options&&(o.compress=i.options.compress),this.opts.perMessageDeflate&&(typeof n=="string"?Buffer.byteLength(n):n.length)<this.opts.perMessageDeflate.threshold&&(o.compress=!1));try{ye?this.ws.send(n):this.ws.send(n,o)}catch{}r&&B(()=>{this.writable=!0,this.emitReserved("drain")},this.setTimeoutFn)})}}doClose(){typeof this.ws<"u"&&(this.ws.close(),this.ws=null)}uri(){let e=this.opts.secure?"wss":"ws",t=this.query||{};return this.opts.timestampRequests&&(t[this.opts.timestampParam]=me()),this.supportsBinary||(t.b64=1),this.createUri(e,t)}check(){return!!se}};var we=class extends L{get name(){return"webtransport"}doOpen(){typeof WebTransport=="function"&&(this.transport=new WebTransport(this.createUri("https"),this.opts.transportOptions[this.name]),this.transport.closed.then(()=>{this.onClose()}).catch(e=>{this.onError("webtransport error",e)}),this.transport.ready.then(()=>{this.transport.createBidirectionalStream().then(e=>{let t=tt(Number.MAX_SAFE_INTEGER,this.socket.binaryType),i=e.readable.pipeThrough(t).getReader(),r=et();r.readable.pipeTo(e.writable),this.writer=r.writable.getWriter();let n=()=>{i.read().then(({done:c,value:l})=>{c||(this.onPacket(l),n())}).catch(c=>{})};n();let o={type:"open"};this.query.sid&&(o.data='{"sid":"'.concat(this.query.sid,'"}')),this.writer.write(o).then(()=>this.onOpen())})}))}write(e){this.writable=!1;for(let t=0;t<e.length;t++){let i=e[t],r=t===e.length-1;this.writer.write(i).then(()=>{r&&B(()=>{this.writable=!0,this.emitReserved("drain")},this.setTimeoutFn)})}}doClose(){var e;(e=this.transport)===null||e===void 0||e.close()}};var Ae={websocket:be,webtransport:we,polling:ge};var Ft=/^(?:(?![^:@\/?#]+:[^:@\/]*@)(http|https|ws|wss):\/\/)?((?:(([^:@\/?#]*)(?::([^:@\/?#]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/,jt=["source","protocol","authority","userInfo","user","password","host","port","relative","path","directory","file","query","anchor"];function W(s){let e=s,t=s.indexOf("["),i=s.indexOf("]");t!=-1&&i!=-1&&(s=s.substring(0,t)+s.substring(t,i).replace(/:/g,";")+s.substring(i,s.length));let r=Ft.exec(s||""),n={},o=14;for(;o--;)n[jt[o]]=r[o]||"";return t!=-1&&i!=-1&&(n.source=e,n.host=n.host.substring(1,n.host.length-1).replace(/;/g,":"),n.authority=n.authority.replace("[","").replace("]","").replace(/;/g,":"),n.ipv6uri=!0),n.pathNames=Wt(n,n.path),n.queryKey=Kt(n,n.query),n}function Wt(s,e){let t=/\/{2,9}/g,i=e.replace(t,"/").split("/");return(e.slice(0,1)=="/"||e.length===0)&&i.splice(0,1),e.slice(-1)=="/"&&i.splice(i.length-1,1),i}function Kt(s,e){let t={};return e.replace(/(?:^|&)([^&=]*)=?([^&]*)/g,function(i,r,n){r&&(t[r]=n)}),t}var D=class s extends y{constructor(e,t={}){super(),this.binaryType=dt,this.writeBuffer=[],e&&typeof e=="object"&&(t=e,e=null),e?(e=W(e),t.hostname=e.host,t.secure=e.protocol==="https"||e.protocol==="wss",t.port=e.port,e.query&&(t.query=e.query)):t.host&&(t.hostname=W(t.host).host),$(this,t),this.secure=t.secure!=null?t.secure:typeof location<"u"&&location.protocol==="https:",t.hostname&&!t.port&&(t.port=this.secure?"443":"80"),this.hostname=t.hostname||(typeof location<"u"?location.hostname:"localhost"),this.port=t.port||(typeof location<"u"&&location.port?location.port:this.secure?"443":"80"),this.transports=t.transports||["polling","websocket","webtransport"],this.writeBuffer=[],this.prevBufferLen=0,this.opts=Object.assign({path:"/engine.io",agent:!1,withCredentials:!1,upgrade:!0,timestampParam:"t",rememberUpgrade:!1,addTrailingSlash:!0,rejectUnauthorized:!0,perMessageDeflate:{threshold:1024},transportOptions:{},closeOnBeforeunload:!1},t),this.opts.path=this.opts.path.replace(/\/$/,"")+(this.opts.addTrailingSlash?"/":""),typeof this.opts.query=="string"&&(this.opts.query=rt(this.opts.query)),this.id=null,this.upgrades=null,this.pingInterval=null,this.pingTimeout=null,this.pingTimeoutTimer=null,typeof addEventListener=="function"&&(this.opts.closeOnBeforeunload&&(this.beforeunloadEventListener=()=>{this.transport&&(this.transport.removeAllListeners(),this.transport.close())},addEventListener("beforeunload",this.beforeunloadEventListener,!1)),this.hostname!=="localhost"&&(this.offlineEventListener=()=>{this.onClose("transport close",{description:"network connection lost"})},addEventListener("offline",this.offlineEventListener,!1))),this.open()}createTransport(e){let t=Object.assign({},this.opts.query);t.EIO=Ne,t.transport=e,this.id&&(t.sid=this.id);let i=Object.assign({},this.opts,{query:t,socket:this,hostname:this.hostname,secure:this.secure,port:this.port},this.opts.transportOptions[e]);return new Ae[e](i)}open(){let e;if(this.opts.rememberUpgrade&&s.priorWebsocketSuccess&&this.transports.indexOf("websocket")!==-1)e="websocket";else if(this.transports.length===0){this.setTimeoutFn(()=>{this.emitReserved("error","No transports available")},0);return}else e=this.transports[0];this.readyState="opening";try{e=this.createTransport(e)}catch{this.transports.shift(),this.open();return}e.open(),this.setTransport(e)}setTransport(e){this.transport&&this.transport.removeAllListeners(),this.transport=e,e.on("drain",this.onDrain.bind(this)).on("packet",this.onPacket.bind(this)).on("error",this.onError.bind(this)).on("close",t=>this.onClose("transport close",t))}probe(e){let t=this.createTransport(e),i=!1;s.priorWebsocketSuccess=!1;let r=()=>{i||(t.send([{type:"ping",data:"probe"}]),t.once("packet",N=>{if(!i)if(N.type==="pong"&&N.data==="probe"){if(this.upgrading=!0,this.emitReserved("upgrading",t),!t)return;s.priorWebsocketSuccess=t.name==="websocket",this.transport.pause(()=>{i||this.readyState!=="closed"&&(b(),this.setTransport(t),t.send([{type:"upgrade"}]),this.emitReserved("upgrade",t),t=null,this.upgrading=!1,this.flush())})}else{let _=new Error("probe error");_.transport=t.name,this.emitReserved("upgradeError",_)}}))};function n(){i||(i=!0,b(),t.close(),t=null)}let o=N=>{let _=new Error("probe error: "+N);_.transport=t.name,n(),this.emitReserved("upgradeError",_)};function c(){o("transport closed")}function l(){o("socket closed")}function m(N){t&&N.name!==t.name&&n()}let b=()=>{t.removeListener("open",r),t.removeListener("error",o),t.removeListener("close",c),this.off("close",l),this.off("upgrading",m)};t.once("open",r),t.once("error",o),t.once("close",c),this.once("close",l),this.once("upgrading",m),this.upgrades.indexOf("webtransport")!==-1&&e!=="webtransport"?this.setTimeoutFn(()=>{i||t.open()},200):t.open()}onOpen(){if(this.readyState="open",s.priorWebsocketSuccess=this.transport.name==="websocket",this.emitReserved("open"),this.flush(),this.readyState==="open"&&this.opts.upgrade){let e=0,t=this.upgrades.length;for(;e<t;e++)this.probe(this.upgrades[e])}}onPacket(e){if(this.readyState==="opening"||this.readyState==="open"||this.readyState==="closing")switch(this.emitReserved("packet",e),this.emitReserved("heartbeat"),this.resetPingTimeout(),e.type){case"open":this.onHandshake(JSON.parse(e.data));break;case"ping":this.sendPacket("pong"),this.emitReserved("ping"),this.emitReserved("pong");break;case"error":let t=new Error("server error");t.code=e.data,this.onError(t);break;case"message":this.emitReserved("data",e.data),this.emitReserved("message",e.data);break}}onHandshake(e){this.emitReserved("handshake",e),this.id=e.sid,this.transport.query.sid=e.sid,this.upgrades=this.filterUpgrades(e.upgrades),this.pingInterval=e.pingInterval,this.pingTimeout=e.pingTimeout,this.maxPayload=e.maxPayload,this.onOpen(),this.readyState!=="closed"&&this.resetPingTimeout()}resetPingTimeout(){this.clearTimeoutFn(this.pingTimeoutTimer),this.pingTimeoutTimer=this.setTimeoutFn(()=>{this.onClose("ping timeout")},this.pingInterval+this.pingTimeout),this.opts.autoUnref&&this.pingTimeoutTimer.unref()}onDrain(){this.writeBuffer.splice(0,this.prevBufferLen),this.prevBufferLen=0,this.writeBuffer.length===0?this.emitReserved("drain"):this.flush()}flush(){if(this.readyState!=="closed"&&this.transport.writable&&!this.upgrading&&this.writeBuffer.length){let e=this.getWritablePackets();this.transport.send(e),this.prevBufferLen=e.length,this.emitReserved("flush")}}getWritablePackets(){if(!(this.maxPayload&&this.transport.name==="polling"&&this.writeBuffer.length>1))return this.writeBuffer;let t=1;for(let i=0;i<this.writeBuffer.length;i++){let r=this.writeBuffer[i].data;if(r&&(t+=it(r)),i>0&&t>this.maxPayload)return this.writeBuffer.slice(0,i);t+=2}return this.writeBuffer}write(e,t,i){return this.sendPacket("message",e,t,i),this}send(e,t,i){return this.sendPacket("message",e,t,i),this}sendPacket(e,t,i,r){if(typeof t=="function"&&(r=t,t=void 0),typeof i=="function"&&(r=i,i=null),this.readyState==="closing"||this.readyState==="closed")return;i=i||{},i.compress=i.compress!==!1;let n={type:e,data:t,options:i};this.emitReserved("packetCreate",n),this.writeBuffer.push(n),r&&this.once("flush",r),this.flush()}close(){let e=()=>{this.onClose("forced close"),this.transport.close()},t=()=>{this.off("upgrade",t),this.off("upgradeError",t),e()},i=()=>{this.once("upgrade",t),this.once("upgradeError",t)};return(this.readyState==="opening"||this.readyState==="open")&&(this.readyState="closing",this.writeBuffer.length?this.once("drain",()=>{this.upgrading?i():e()}):this.upgrading?i():e()),this}onError(e){s.priorWebsocketSuccess=!1,this.emitReserved("error",e),this.onClose("transport error",e)}onClose(e,t){(this.readyState==="opening"||this.readyState==="open"||this.readyState==="closing")&&(this.clearTimeoutFn(this.pingTimeoutTimer),this.transport.removeAllListeners("close"),this.transport.close(),this.transport.removeAllListeners(),typeof removeEventListener=="function"&&(removeEventListener("beforeunload",this.beforeunloadEventListener,!1),removeEventListener("offline",this.offlineEventListener,!1)),this.readyState="closed",this.id=null,this.emitReserved("close",e,t),this.writeBuffer=[],this.prevBufferLen=0)}filterUpgrades(e){let t=[],i=0,r=e.length;for(;i<r;i++)~this.transports.indexOf(e[i])&&t.push(e[i]);return t}};D.protocol=Ne;var ps=D.protocol;function pt(s,e="",t){let i=s;t=t||typeof location<"u"&&location,s==null&&(s=t.protocol+"//"+t.host),typeof s=="string"&&(s.charAt(0)==="/"&&(s.charAt(1)==="/"?s=t.protocol+s:s=t.host+s),/^(https?|wss?):\/\//.test(s)||(typeof t<"u"?s=t.protocol+"//"+s:s="https://"+s),i=W(s)),i.port||(/^(http|ws)$/.test(i.protocol)?i.port="80":/^(http|ws)s$/.test(i.protocol)&&(i.port="443")),i.path=i.path||"/";let n=i.host.indexOf(":")!==-1?"["+i.host+"]":i.host;return i.id=i.protocol+"://"+n+":"+i.port+e,i.href=i.protocol+"://"+n+(t&&t.port===i.port?"":":"+i.port),i}var Me={};At(Me,{Decoder:()=>Ue,Encoder:()=>Le,PacketType:()=>f,protocol:()=>wt});var Jt=typeof ArrayBuffer=="function",zt=s=>typeof ArrayBuffer.isView=="function"?ArrayBuffer.isView(s):s.buffer instanceof ArrayBuffer,mt=Object.prototype.toString,Yt=typeof Blob=="function"||typeof Blob<"u"&&mt.call(Blob)==="[object BlobConstructor]",Gt=typeof File=="function"||typeof File<"u"&&mt.call(File)==="[object FileConstructor]";function ne(s){return Jt&&(s instanceof ArrayBuffer||zt(s))||Yt&&s instanceof Blob||Gt&&s instanceof File}function re(s,e){if(!s||typeof s!="object")return!1;if(Array.isArray(s)){for(let t=0,i=s.length;t<i;t++)if(re(s[t]))return!0;return!1}if(ne(s))return!0;if(s.toJSON&&typeof s.toJSON=="function"&&arguments.length===1)return re(s.toJSON(),!0);for(let t in s)if(Object.prototype.hasOwnProperty.call(s,t)&&re(s[t]))return!0;return!1}function gt(s){let e=[],t=s.data,i=s;return i.data=Te(t,e),i.attachments=e.length,{packet:i,buffers:e}}function Te(s,e){if(!s)return s;if(ne(s)){let t={_placeholder:!0,num:e.length};return e.push(s),t}else if(Array.isArray(s)){let t=new Array(s.length);for(let i=0;i<s.length;i++)t[i]=Te(s[i],e);return t}else if(typeof s=="object"&&!(s instanceof Date)){let t={};for(let i in s)Object.prototype.hasOwnProperty.call(s,i)&&(t[i]=Te(s[i],e));return t}return s}function yt(s,e){return s.data=$e(s.data,e),delete s.attachments,s}function $e(s,e){if(!s)return s;if(s&&s._placeholder===!0){if(typeof s.num=="number"&&s.num>=0&&s.num<e.length)return e[s.num];throw new Error("illegal attachments")}else if(Array.isArray(s))for(let t=0;t<s.length;t++)s[t]=$e(s[t],e);else if(typeof s=="object")for(let t in s)Object.prototype.hasOwnProperty.call(s,t)&&(s[t]=$e(s[t],e));return s}var Xt=["connect","connect_error","disconnect","disconnecting","newListener","removeListener"],wt=5,f;(function(s){s[s.CONNECT=0]="CONNECT",s[s.DISCONNECT=1]="DISCONNECT",s[s.EVENT=2]="EVENT",s[s.ACK=3]="ACK",s[s.CONNECT_ERROR=4]="CONNECT_ERROR",s[s.BINARY_EVENT=5]="BINARY_EVENT",s[s.BINARY_ACK=6]="BINARY_ACK"})(f||(f={}));var Le=class{constructor(e){this.replacer=e}encode(e){return(e.type===f.EVENT||e.type===f.ACK)&&re(e)?this.encodeAsBinary({type:e.type===f.EVENT?f.BINARY_EVENT:f.BINARY_ACK,nsp:e.nsp,data:e.data,id:e.id}):[this.encodeAsString(e)]}encodeAsString(e){let t=""+e.type;return(e.type===f.BINARY_EVENT||e.type===f.BINARY_ACK)&&(t+=e.attachments+"-"),e.nsp&&e.nsp!=="/"&&(t+=e.nsp+","),e.id!=null&&(t+=e.id),e.data!=null&&(t+=JSON.stringify(e.data,this.replacer)),t}encodeAsBinary(e){let t=gt(e),i=this.encodeAsString(t.packet),r=t.buffers;return r.unshift(i),r}};function bt(s){return Object.prototype.toString.call(s)==="[object Object]"}var Ue=class s extends y{constructor(e){super(),this.reviver=e}add(e){let t;if(typeof e=="string"){if(this.reconstructor)throw new Error("got plaintext data when reconstructing a packet");t=this.decodeString(e);let i=t.type===f.BINARY_EVENT;i||t.type===f.BINARY_ACK?(t.type=i?f.EVENT:f.ACK,this.reconstructor=new Ie(t),t.attachments===0&&super.emitReserved("decoded",t)):super.emitReserved("decoded",t)}else if(ne(e)||e.base64)if(this.reconstructor)t=this.reconstructor.takeBinaryData(e),t&&(this.reconstructor=null,super.emitReserved("decoded",t));else throw new Error("got binary data when not reconstructing a packet");else throw new Error("Unknown type: "+e)}decodeString(e){let t=0,i={type:Number(e.charAt(0))};if(f[i.type]===void 0)throw new Error("unknown packet type "+i.type);if(i.type===f.BINARY_EVENT||i.type===f.BINARY_ACK){let n=t+1;for(;e.charAt(++t)!=="-"&&t!=e.length;);let o=e.substring(n,t);if(o!=Number(o)||e.charAt(t)!=="-")throw new Error("Illegal attachments");i.attachments=Number(o)}if(e.charAt(t+1)==="/"){let n=t+1;for(;++t&&!(e.charAt(t)===","||t===e.length););i.nsp=e.substring(n,t)}else i.nsp="/";let r=e.charAt(t+1);if(r!==""&&Number(r)==r){let n=t+1;for(;++t;){let o=e.charAt(t);if(o==null||Number(o)!=o){--t;break}if(t===e.length)break}i.id=Number(e.substring(n,t+1))}if(e.charAt(++t)){let n=this.tryParse(e.substr(t));if(s.isPayloadValid(i.type,n))i.data=n;else throw new Error("invalid payload")}return i}tryParse(e){try{return JSON.parse(e,this.reviver)}catch{return!1}}static isPayloadValid(e,t){switch(e){case f.CONNECT:return bt(t);case f.DISCONNECT:return t===void 0;case f.CONNECT_ERROR:return typeof t=="string"||bt(t);case f.EVENT:case f.BINARY_EVENT:return Array.isArray(t)&&(typeof t[0]=="number"||typeof t[0]=="string"&&Xt.indexOf(t[0])===-1);case f.ACK:case f.BINARY_ACK:return Array.isArray(t)}}destroy(){this.reconstructor&&(this.reconstructor.finishedReconstruction(),this.reconstructor=null)}},Ie=class{constructor(e){this.packet=e,this.buffers=[],this.reconPack=e}takeBinaryData(e){if(this.buffers.push(e),this.buffers.length===this.reconPack.attachments){let t=yt(this.reconPack,this.buffers);return this.finishedReconstruction(),t}return null}finishedReconstruction(){this.reconPack=null,this.buffers=[]}};function S(s,e,t){return s.on(e,t),function(){s.off(e,t)}}var Qt=Object.freeze({connect:1,connect_error:1,disconnect:1,disconnecting:1,newListener:1,removeListener:1}),K=class extends y{constructor(e,t,i){super(),this.connected=!1,this.recovered=!1,this.receiveBuffer=[],this.sendBuffer=[],this._queue=[],this._queueSeq=0,this.ids=0,this.acks={},this.flags={},this.io=e,this.nsp=t,i&&i.auth&&(this.auth=i.auth),this._opts=Object.assign({},i),this.io._autoConnect&&this.open()}get disconnected(){return!this.connected}subEvents(){if(this.subs)return;let e=this.io;this.subs=[S(e,"open",this.onopen.bind(this)),S(e,"packet",this.onpacket.bind(this)),S(e,"error",this.onerror.bind(this)),S(e,"close",this.onclose.bind(this))]}get active(){return!!this.subs}connect(){return this.connected?this:(this.subEvents(),this.io._reconnecting||this.io.open(),this.io._readyState==="open"&&this.onopen(),this)}open(){return this.connect()}send(...e){return e.unshift("message"),this.emit.apply(this,e),this}emit(e,...t){if(Qt.hasOwnProperty(e))throw new Error('"'+e.toString()+'" is a reserved event name');if(t.unshift(e),this._opts.retries&&!this.flags.fromQueue&&!this.flags.volatile)return 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o=[];n.forEach(c=>{c.target.dataset.isvisible=c.isIntersecting,o.push({isIntersecting:c.isIntersecting})}),this.send({payload:o[0].isIntersecting,isVisible:o[0].isIntersecting,cssSelector:e,entries:o}),a("info","uib:elementIsVisible",'Element "'.concat(e,'" is now ').concat(o[0].isIntersecting?"more than 10%":"NOT (<10%)"," visible"))()},{threshold:i}));let r=document.querySelector(e);if(r===null){a("error","uib:elementIsVisible",'Element "'.concat(e,'" not found'))();return}if(t===!0){u(this,H).unobserve(r);return}u(this,H).observe(r)}elementExists(e,t=!0){let i=document.querySelector(e),r=!1;return i!==null&&(r=!0),t===!0&&this.send({payload:r,info:'Element "'.concat(e,'" ').concat(r?"exists":"does not exist")}),r}keepHashFromUrl(e){return e?"#"+e.replace(/^.*#(.*)/,"$1").replace(/\?.*$/,""):""}_watchHashChanges(){this.set("urlHash",location.hash),window.addEventListener("hashchange",e=>{this.set("urlHash",location.hash),u(this,V)===!0&&this.send({topic:"hashChange",payload:location.hash,newHash:this.keepHashFromUrl(e.newURL),oldHash:this.keepHashFromUrl(e.oldURL)})})}truthy(e,t){let i;return["on","On","ON","true","True","TRUE","1",!0,1].includes(e)?i=!0:["off","Off","OFF","false","False","FALSE","0",!1,0].includes(e)?i=!1:i=t,i}watchUrlHash(e){return x(this,V,this.truthy(e,u(this,V)!==!0)),u(this,V)}ui(e){g.ui(e)}replaceSlot(e,t){g.replaceSlot(e,t)}replaceSlotMarkdown(e,t){g.replaceSlotMarkdown(e,t)}convertMarkdown(e){return g.convertMarkdown(e)}sanitiseHTML(e){return g.sanitiseHTML(e)}loadScriptSrc(e){g.loadScriptSrc(e)}loadStyleSrc(e){g.loadStyleSrc(e)}loadScriptTxt(e){g.loadScriptTxt(e)}loadStyleTxt(e){g.loadStyleTxt(e)}showDialog(e,t,i){g.showDialog(e,t,i)}loadui(e){g.loadui(e)}uiGet(e,t=null){return 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l=[];c.forEach(m=>{let b={type:m.type,oldValue:m.oldValue!==null?m.oldValue:void 0};m.addedNodes.length>0&&(b.addedNodes=[],m.addedNodes.forEach((N,_)=>{b.addedNodes.push(g.nodeGet(m.addedNodes[_]))})),m.removedNodes.length>0&&(b.removedNodes=[],m.removedNodes.forEach((N,_)=>{b.removedNodes.push(g.nodeGet(m.removedNodes[_]))})),m.type==="attributes"&&(b.attributeName=m.attributeName,b.newValue=m.target.attributes[m.attributeName].value),l.push(b)}),o._dispatchCustomEvent("uibuilder:domChange",l),i===!0&&o.send({_ui:{cssSelector:e,uiChanges:l},topic:o.topic||"DOM Changes for '".concat(e,"'")}),r===!0&&a("info","uibuilder.module.js:uiWatch","DOM Changes for '".concat(e,"'"),{uiChanges:l},{mutationList:c})()}),u(this,M)[e].observe(n,{attributes:!0,childList:!0,subtree:!0,characterData:!0}),a("trace","uibuilder.module.js:uiWatch","Started Watching DOM changes for '".concat(e,"'"))()):(u(this,M)[e].disconnect(),delete u(this,M)[e],a("trace","uibuilder.module.js:uiWatch","Stopped Watching 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changes")())}_send(e,t,i=""){t==null&&(t=this._ioChannels.client),t===this._ioChannels.client?e=Be(e,"payload"):t===this._ioChannels.control&&(e=Be(e,"uibuilderCtrl"),Object.prototype.hasOwnProperty.call(e,"uibuilderCtrl")||(e.uibuilderCtrl="manual send"),e.from="client"),e._socketId=this._socket.id,this.socketOptions.auth.tabId=this.tabId,this.socketOptions.auth.lastNavType=this.lastNavType,this.socketOptions.auth.connectedNum=this.connectedNum,i===""&&this.originator!==""&&(i=this.originator),i!==""&&Object.assign(e,{_uib:{originator:i}}),Object.prototype.hasOwnProperty.call(e,"topic")||(this.topic!==void 0&&this.topic!==""?e.topic=this.topic:Object.prototype.hasOwnProperty.call(this,"msg")&&Object.prototype.hasOwnProperty.call(this.msg,"topic")&&(e.topic=this.msg.topic)),e._ui&&(e._ui.from="client");let r;t===this._ioChannels.client?(this.set("sentMsg",e),r=this.set("msgsSent",++this.msgsSent)):t===this._ioChannels.control&&(this.set("sentCtrlMsg",e),r=this.set("msgsSentCtrl",++this.msgsSentCtrl)),a("trace","Uib:_send"," Channel '".concat(t,"'. 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Arg Type: ".concat(e.constructor.name),e)();return}e.preventDefault();let i=e.currentTarget,r={};Object.keys(i).forEach(p=>{p.startsWith("_")||(r[p]=i[p])});let n=["class","id","name"],o;try{o=Object.assign({},...Array.from(i.attributes,({name:p,value:_e})=>{if(!n.includes(p))return{[p]:_e}}))}catch{}let c,l=[];i.form&&(c={},c.valid=i.form.checkValidity(),Object.values(i.form).forEach((p,_e)=>{let F=p.id!==""?p.id:p.name!==""?p.name:"".concat(_e,"-").concat(p.type);if(F!==""&&p.type){if("checked"in p&&p.value==="on"&&(p.value=p.checked.toString()),l.push({key:F,val:p.value}),c[F]={id:p.id,name:p.name,value:p.value,valid:p.checkValidity(),type:p.type},c[F].valid===!1){let w=p.validity;c[F].validity={badInput:w.badInput===!0?w.badInput:void 0,customError:w.customError===!0?w.customError:void 0,patternMismatch:w.patternMismatch===!0?w.patternMismatch:void 0,rangeOverflow:w.rangeOverflow===!0?w.rangeOverflow:void 0,rangeUnderflow:w.rangeUnderflow===!0?w.rangeUnderflow:void 0,stepMismatch:w.stepMismatch===!0?w.stepMismatch:void 0,tooLong:w.tooLong===!0?w.tooLong:void 0,tooShort:w.tooShort===!0?w.tooShort:void 0,typeMismatch:w.typeMismatch===!0?w.typeMismatch:void 0,valueMissing:w.valueMissing===!0?w.valueMissing:void 0}}p.dataset&&(c[F].data=p.dataset)}}));let m;try{m=Array.from(i.classList)}catch{}let b={...i.dataset},N;Object.prototype.toString.call(i)==="[object Notification]"&&(b="notification-".concat(i.userAction),N={actions:i.actions,badge:i.badge,body:i.body,data:i.data,dir:i.dir,icon:i.icon,image:i.image,lang:i.lang,renotify:i.renotify,requireInteraction:i.requireInteraction,silent:i.silent,tag:i.tag,timestamp:i.timestamp,title:i.title,vibrate:i.vibrate});let _={payload:b,_ui:{type:"eventSend",id:i.id!==""?i.id:void 0,name:i.name!==""?i.name:void 0,slotText:i.textContent?i.textContent.substring(0,255):void 0,form:c,props:r,attribs:o,classes:m,notification:N,event:e.type,altKey:e.altKey,ctrlKey:e.ctrlKey,shiftKey:e.shiftKey,metaKey:e.metaKey,pointerType:e.pointerType,nodeName:i.nodeName,clientId:this.clientId,pageName:this.pageName,tabId:this.tabId}};l.length>0&&l.forEach(p=>{_.payload[p.key]=p.val}),e.type==="change"&&(_._ui.newValue=_.payload.value="checked"in i?i.checked:e.target.value),a("trace","Uib:eventSend","Sending msg to Node-RED",_)(),i.dataset&&i.dataset.length===0&&a("warn","Uib:eventSend","No payload in msg. data-* attributes should be used.")(),this._send(_,this._ioChannels.client,t)}htmlSend(e="",t=!0){let i="<!doctype html>\n".concat(document.documentElement.outerHTML),r={payload:i,length:i.length,topic:this.topic};return a("trace","Uib:htmlSend","Sending full HTML to Node-RED",r)(),t===!0&&this._send(r,this._ioChannels.client,e),i}_uibCommand(e){let t=e._uib.command;if(!u(this,ve).includes(t.trim())){a("error","Uib:_uibCommand","Command '".concat(t," is not allowed to be called externally"))();return}let i=e._uib.prop,r=e._uib.value,n,o;switch(t){case"elementExists":{n=this.elementExists(i,!1),o='Element "'.concat(i,'" ').concat(n?"exists":"does not exist");break}case"get":{n=this.get(i);break}case"getManagedVarList":{i==="full"?n=this.getManagedVarList():n=Object.values(this.getManagedVarList());break}case"getWatchedVars":{i==="full"?n=this.getWatchedVars():n=Object.values(this.getWatchedVars());break}case"htmlSend":{n=this.htmlSend("",!1);break}case"include":{n=g.include(i,r);break}case"set":{let c=!1,l=!1;e._uib.options&&e._uib.options.store&&(e._uib.options.store===!0&&(c=!0),e._uib.options.autoload===!0&&(l=!0)),n=this.set(i,r,c,l);break}case"showMsg":{n=this.showMsg(r,i);break}case"showStatus":{n=this.showStatus(r,i);break}case"uiGet":{n=g.uiGet(i,r);break}case"uiWatch":{n=this.uiWatch(i);break}case"watchUrlHash":{n=this.watchUrlHash(i);break}default:{a("warning","Uib:_uibCommand","Command '".concat(t,"' not yet implemented"))();break}}n===void 0&&(n="'".concat(i,"' is undefined")),Object(n).constructor===Promise?n.then(c=>(e.payload=e._uib.response=c,e.info=e._uib.info=o,e.topic||(e.topic=this.topic||"uib ".concat(t," for '").concat(i,"'")),this.send(e),!0)).catch(c=>{a(0,"Uib:_uibCommand","Error: ",c)()}):(e.payload=e._uib.response=n,e.info=e._uib.info=o,e.topic||(e.topic=this.topic||"uib ".concat(t," for '").concat(i,"'")),this.send(e))}_forThis(e){let t=!0;return e.pageName&&e.pageName!==this.pageName&&(a("trace","Uib:_msgRcvdEvents:_uib","Not for this page")(),t=!1),e.clientId&&e.clientId!==this.clientId&&(a("trace","Uib:_msgRcvdEvents:_uib","Not for this clientId")(),t=!1),e.tabId&&e.tabId!==this.tabId&&(a("trace","Uib:_msgRcvdEvents:_uib","Not for this tabId")(),t=!1),t}_msgRcvdEvents(e){if(this._dispatchCustomEvent("uibuilder:stdMsgReceived",e),e.topic&&this._dispatchCustomEvent("uibuilder:msg:topic:".concat(e.topic),e),e._uib){if(!this._forThis(e._uib))return;if(e._uib.reload===!0){a("trace","Uib:_msgRcvdEvents:_uib:reload","reloading")(),location.reload();return}if(e._uib.command){this._uibCommand(e);return}e._uib.componentRef==="globalNotification"&&g.showDialog("notify",e._uib.options,e),e._uib.componentRef==="globalAlert"&&g.showDialog("alert",e._uib.options,e)}if(e._ui){if(!this._forThis(e._ui))return;a("trace","Uib:_msgRcvdEvents:_ui","Calling _uiManager")(),this._dispatchCustomEvent("uibuilder:msg:_ui",e),g._uiManager(e)}}_stdMsgFromServer(e){e=Be(e,"payload"),!(e._uib&&!this._forThis(e._uib))&&(e._ui&&!this._forThis(e._ui)||(this._checkTimestamp(e),this.set("msgsReceived",++this.msgsReceived),this._msgRcvdEvents(e),"_ui"in e&&!("payload"in e)||this.set("msg",e),a("info","Uib:ioSetup:stdMsgFromServer","Channel '".concat(this._ioChannels.server,"'. 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Version: ".concat(e.version,"\nServer time: ").concat(e.serverTimestamp,", Sever time offset: ").concat(this.serverTimeOffset," hours"))(),v._meta.version.startsWith(e.version.split("-")[0])||a("warn","Uib:ioSetup:".concat(this._ioChannels.control),"Server version (".concat(e.version,") not the same as the client version (").concat(v._meta.version,")"))(),this.autoSendReady===!0&&a("trace","Uib:ioSetup:".concat(this._ioChannels.control,"/client connect"),"Auto-sending ready-for-content/replay msg to server");break}default:a("trace","uibuilderfe:ioSetup:".concat(this._ioChannels.control),"Received ".concat(e.uibuilderCtrl," from server"))}}beaconLog(e,t){t||(t="debug"),navigator.sendBeacon("./_clientLog","".concat(t,"::").concat(e))}logToServer(){this.sendCtrl({uibuilderCtrl:"client log message",payload:arguments,_socketId:this._socket.id,clientId:this.clientId,tabId:this.tabId,pageName:this.pageName,connections:this.connectedNum,lastNavType:this.lastNavType})}_getIOnamespace(){let e;if(e=this.cookies["uibuilder-namespace"],e===void 0||e===""){let t=window.location.pathname.split("/").filter(function(i){return i.trim()!==""});t.length>0&&t[t.length-1].endsWith(".html")&&t.pop(),e=t.pop(),a("trace","uibuilder.module.js:getIOnamespace","Socket.IO namespace found via url path: ".concat(e))()}else a("trace","uibuilder.module.js:getIOnamespace","Socket.IO namespace found via cookie: ".concat(e))();return this.url=e,e="/"+e,a("trace","uibuilder.module.js:getIOnamespace","Final Socket.IO namespace: ".concat(e))(),e}_checkConnect(e,t,i=1){if(navigator.onLine!==!1)return e||(e=this.retryMs),t||(t=this.retryFactor),a("trace","Uib:checkConnect","Checking connection. Connected: ".concat(this._socket.connected,". Timer: ").concat(u(this,C),". Depth: ").concat(i,". Delay: ").concat(e,". Factor: ").concat(t),this._socket)(),this._socket.connected===!0?(u(this,C)&&(window.clearTimeout(u(this,C)),x(this,C,null)),this.set("ioConnected",!0),this.set("socketError",null),!0):(this.set("ioConnected",!1),u(this,C)&&window.clearTimeout(u(this,C)),x(this,C,window.setTimeout(()=>{a("warn","Uib:checkConnect:setTimeout","Socket.IO reconnection attempt. Current delay: ".concat(e,". Depth: ").concat(i))(),this._socket.close(),this._socket.connect(),x(this,C,null),this._checkConnect(e*t,t,i++)},e)),!1)}_onConnect(){this.set("connectedNum",this.connectedNum++),this.socketOptions.auth.connectedNum=this.connectedNum,this.socketOptions.auth.lastNavType=this.lastNavType,this.socketOptions.auth.tabId=this.tabId,this.socketOptions.auth.more=this.tabId,a("info","Uib:ioSetup","\u2705 SOCKET CONNECTED. 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this.opts.timestampRequests&&(t[this.opts.timestampParam]=me()),this.supportsBinary||(t.b64=1),this.createUri(e,t)}check(){return!!ie}};var we=class extends L{get name(){return"webtransport"}doOpen(){typeof WebTransport=="function"&&(this.transport=new WebTransport(this.createUri("https"),this.opts.transportOptions[this.name]),this.transport.closed.then(()=>{this.onClose()}).catch(e=>{this.onError("webtransport error",e)}),this.transport.ready.then(()=>{this.transport.createBidirectionalStream().then(e=>{let t=et(Number.MAX_SAFE_INTEGER,this.socket.binaryType),i=e.readable.pipeThrough(t).getReader(),r=Ze();r.readable.pipeTo(e.writable),this.writer=r.writable.getWriter();let n=()=>{i.read().then(({done:c,value:l})=>{c||(this.onPacket(l),n())}).catch(c=>{})};n();let o={type:"open"};this.query.sid&&(o.data='{"sid":"'.concat(this.query.sid,'"}')),this.writer.write(o).then(()=>this.onOpen())})}))}write(e){this.writable=!1;for(let t=0;t<e.length;t++){let i=e[t],r=t===e.length-1;this.writer.write(i).then(()=>{r&&D(()=>{this.writable=!0,this.emitReserved("drain")},this.setTimeoutFn)})}}doClose(){var e;(e=this.transport)===null||e===void 0||e.close()}};var Re={websocket:be,webtransport:we,polling:ge};var Vt=/^(?:(?![^:@\/?#]+:[^:@\/]*@)(http|https|ws|wss):\/\/)?((?:(([^:@\/?#]*)(?::([^:@\/?#]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/,Ft=["source","protocol","authority","userInfo","user","password","host","port","relative","path","directory","file","query","anchor"];function j(s){if(s.length>2e3)throw"URI too long";let e=s,t=s.indexOf("["),i=s.indexOf("]");t!=-1&&i!=-1&&(s=s.substring(0,t)+s.substring(t,i).replace(/:/g,";")+s.substring(i,s.length));let r=Vt.exec(s||""),n={},o=14;for(;o--;)n[Ft[o]]=r[o]||"";return t!=-1&&i!=-1&&(n.source=e,n.host=n.host.substring(1,n.host.length-1).replace(/;/g,":"),n.authority=n.authority.replace("[","").replace("]","").replace(/;/g,":"),n.ipv6uri=!0),n.pathNames=jt(n,n.path),n.queryKey=Wt(n,n.query),n}function jt(s,e){let t=/\/{2,9}/g,i=e.replace(t,"/").split("/");return(e.slice(0,1)=="/"||e.length===0)&&i.splice(0,1),e.slice(-1)=="/"&&i.splice(i.length-1,1),i}function Wt(s,e){let t={};return e.replace(/(?:^|&)([^&=]*)=?([^&]*)/g,function(i,r,n){r&&(t[r]=n)}),t}var B=class s extends y{constructor(e,t={}){super(),this.binaryType=ut,this.writeBuffer=[],e&&typeof e=="object"&&(t=e,e=null),e?(e=j(e),t.hostname=e.host,t.secure=e.protocol==="https"||e.protocol==="wss",t.port=e.port,e.query&&(t.query=e.query)):t.host&&(t.hostname=j(t.host).host),$(this,t),this.secure=t.secure!=null?t.secure:typeof location<"u"&&location.protocol==="https:",t.hostname&&!t.port&&(t.port=this.secure?"443":"80"),this.hostname=t.hostname||(typeof location<"u"?location.hostname:"localhost"),this.port=t.port||(typeof location<"u"&&location.port?location.port:this.secure?"443":"80"),this.transports=t.transports||["polling","websocket","webtransport"],this.writeBuffer=[],this.prevBufferLen=0,this.opts=Object.assign({path:"/engine.io",agent:!1,withCredentials:!1,upgrade:!0,timestampParam:"t",rememberUpgrade:!1,addTrailingSlash:!0,rejectUnauthorized:!0,perMessageDeflate:{threshold:1024},transportOptions:{},closeOnBeforeunload:!1},t),this.opts.path=this.opts.path.replace(/\/$/,"")+(this.opts.addTrailingSlash?"/":""),typeof this.opts.query=="string"&&(this.opts.query=st(this.opts.query)),this.id=null,this.upgrades=null,this.pingInterval=null,this.pingTimeout=null,this.pingTimeoutTimer=null,typeof addEventListener=="function"&&(this.opts.closeOnBeforeunload&&(this.beforeunloadEventListener=()=>{this.transport&&(this.transport.removeAllListeners(),this.transport.close())},addEventListener("beforeunload",this.beforeunloadEventListener,!1)),this.hostname!=="localhost"&&(this.offlineEventListener=()=>{this.onClose("transport close",{description:"network connection lost"})},addEventListener("offline",this.offlineEventListener,!1))),this.open()}createTransport(e){let t=Object.assign({},this.opts.query);t.EIO=xe,t.transport=e,this.id&&(t.sid=this.id);let i=Object.assign({},this.opts,{query:t,socket:this,hostname:this.hostname,secure:this.secure,port:this.port},this.opts.transportOptions[e]);return new Re[e](i)}open(){let e;if(this.opts.rememberUpgrade&&s.priorWebsocketSuccess&&this.transports.indexOf("websocket")!==-1)e="websocket";else if(this.transports.length===0){this.setTimeoutFn(()=>{this.emitReserved("error","No transports available")},0);return}else e=this.transports[0];this.readyState="opening";try{e=this.createTransport(e)}catch{this.transports.shift(),this.open();return}e.open(),this.setTransport(e)}setTransport(e){this.transport&&this.transport.removeAllListeners(),this.transport=e,e.on("drain",this.onDrain.bind(this)).on("packet",this.onPacket.bind(this)).on("error",this.onError.bind(this)).on("close",t=>this.onClose("transport close",t))}probe(e){let t=this.createTransport(e),i=!1;s.priorWebsocketSuccess=!1;let r=()=>{i||(t.send([{type:"ping",data:"probe"}]),t.once("packet",x=>{if(!i)if(x.type==="pong"&&x.data==="probe"){if(this.upgrading=!0,this.emitReserved("upgrading",t),!t)return;s.priorWebsocketSuccess=t.name==="websocket",this.transport.pause(()=>{i||this.readyState!=="closed"&&(b(),this.setTransport(t),t.send([{type:"upgrade"}]),this.emitReserved("upgrade",t),t=null,this.upgrading=!1,this.flush())})}else{let k=new Error("probe error");k.transport=t.name,this.emitReserved("upgradeError",k)}}))};function n(){i||(i=!0,b(),t.close(),t=null)}let o=x=>{let k=new Error("probe error: "+x);k.transport=t.name,n(),this.emitReserved("upgradeError",k)};function c(){o("transport closed")}function l(){o("socket closed")}function f(x){t&&x.name!==t.name&&n()}let b=()=>{t.removeListener("open",r),t.removeListener("error",o),t.removeListener("close",c),this.off("close",l),this.off("upgrading",f)};t.once("open",r),t.once("error",o),t.once("close",c),this.once("close",l),this.once("upgrading",f),this.upgrades.indexOf("webtransport")!==-1&&e!=="webtransport"?this.setTimeoutFn(()=>{i||t.open()},200):t.open()}onOpen(){if(this.readyState="open",s.priorWebsocketSuccess=this.transport.name==="websocket",this.emitReserved("open"),this.flush(),this.readyState==="open"&&this.opts.upgrade){let e=0,t=this.upgrades.length;for(;e<t;e++)this.probe(this.upgrades[e])}}onPacket(e){if(this.readyState==="opening"||this.readyState==="open"||this.readyState==="closing")switch(this.emitReserved("packet",e),this.emitReserved("heartbeat"),this.resetPingTimeout(),e.type){case"open":this.onHandshake(JSON.parse(e.data));break;case"ping":this.sendPacket("pong"),this.emitReserved("ping"),this.emitReserved("pong");break;case"error":let t=new Error("server error");t.code=e.data,this.onError(t);break;case"message":this.emitReserved("data",e.data),this.emitReserved("message",e.data);break}}onHandshake(e){this.emitReserved("handshake",e),this.id=e.sid,this.transport.query.sid=e.sid,this.upgrades=this.filterUpgrades(e.upgrades),this.pingInterval=e.pingInterval,this.pingTimeout=e.pingTimeout,this.maxPayload=e.maxPayload,this.onOpen(),this.readyState!=="closed"&&this.resetPingTimeout()}resetPingTimeout(){this.clearTimeoutFn(this.pingTimeoutTimer),this.pingTimeoutTimer=this.setTimeoutFn(()=>{this.onClose("ping timeout")},this.pingInterval+this.pingTimeout),this.opts.autoUnref&&this.pingTimeoutTimer.unref()}onDrain(){this.writeBuffer.splice(0,this.prevBufferLen),this.prevBufferLen=0,this.writeBuffer.length===0?this.emitReserved("drain"):this.flush()}flush(){if(this.readyState!=="closed"&&this.transport.writable&&!this.upgrading&&this.writeBuffer.length){let e=this.getWritablePackets();this.transport.send(e),this.prevBufferLen=e.length,this.emitReserved("flush")}}getWritablePackets(){if(!(this.maxPayload&&this.transport.name==="polling"&&this.writeBuffer.length>1))return this.writeBuffer;let t=1;for(let i=0;i<this.writeBuffer.length;i++){let r=this.writeBuffer[i].data;if(r&&(t+=tt(r)),i>0&&t>this.maxPayload)return this.writeBuffer.slice(0,i);t+=2}return this.writeBuffer}write(e,t,i){return this.sendPacket("message",e,t,i),this}send(e,t,i){return this.sendPacket("message",e,t,i),this}sendPacket(e,t,i,r){if(typeof t=="function"&&(r=t,t=void 0),typeof i=="function"&&(r=i,i=null),this.readyState==="closing"||this.readyState==="closed")return;i=i||{},i.compress=i.compress!==!1;let n={type:e,data:t,options:i};this.emitReserved("packetCreate",n),this.writeBuffer.push(n),r&&this.once("flush",r),this.flush()}close(){let e=()=>{this.onClose("forced close"),this.transport.close()},t=()=>{this.off("upgrade",t),this.off("upgradeError",t),e()},i=()=>{this.once("upgrade",t),this.once("upgradeError",t)};return(this.readyState==="opening"||this.readyState==="open")&&(this.readyState="closing",this.writeBuffer.length?this.once("drain",()=>{this.upgrading?i():e()}):this.upgrading?i():e()),this}onError(e){s.priorWebsocketSuccess=!1,this.emitReserved("error",e),this.onClose("transport error",e)}onClose(e,t){(this.readyState==="opening"||this.readyState==="open"||this.readyState==="closing")&&(this.clearTimeoutFn(this.pingTimeoutTimer),this.transport.removeAllListeners("close"),this.transport.close(),this.transport.removeAllListeners(),typeof removeEventListener=="function"&&(removeEventListener("beforeunload",this.beforeunloadEventListener,!1),removeEventListener("offline",this.offlineEventListener,!1)),this.readyState="closed",this.id=null,this.emitReserved("close",e,t),this.writeBuffer=[],this.prevBufferLen=0)}filterUpgrades(e){let t=[],i=0,r=e.length;for(;i<r;i++)~this.transports.indexOf(e[i])&&t.push(e[i]);return t}};B.protocol=xe;var fs=B.protocol;function ft(s,e="",t){let i=s;t=t||typeof location<"u"&&location,s==null&&(s=t.protocol+"//"+t.host),typeof s=="string"&&(s.charAt(0)==="/"&&(s.charAt(1)==="/"?s=t.protocol+s:s=t.host+s),/^(https?|wss?):\/\//.test(s)||(typeof t<"u"?s=t.protocol+"//"+s:s="https://"+s),i=j(s)),i.port||(/^(http|ws)$/.test(i.protocol)?i.port="80":/^(http|ws)s$/.test(i.protocol)&&(i.port="443")),i.path=i.path||"/";let n=i.host.indexOf(":")!==-1?"["+i.host+"]":i.host;return i.id=i.protocol+"://"+n+":"+i.port+e,i.href=i.protocol+"://"+n+(t&&t.port===i.port?"":":"+i.port),i}var Ie={};Rt(Ie,{Decoder:()=>Le,Encoder:()=>$e,PacketType:()=>p,protocol:()=>bt});var Kt=typeof ArrayBuffer=="function",Jt=s=>typeof ArrayBuffer.isView=="function"?ArrayBuffer.isView(s):s.buffer instanceof ArrayBuffer,pt=Object.prototype.toString,zt=typeof Blob=="function"||typeof Blob<"u"&&pt.call(Blob)==="[object BlobConstructor]",Yt=typeof File=="function"||typeof File<"u"&&pt.call(File)==="[object FileConstructor]";function re(s){return Kt&&(s instanceof ArrayBuffer||Jt(s))||zt&&s instanceof Blob||Yt&&s instanceof File}function se(s,e){if(!s||typeof s!="object")return!1;if(Array.isArray(s)){for(let t=0,i=s.length;t<i;t++)if(se(s[t]))return!0;return!1}if(re(s))return!0;if(s.toJSON&&typeof s.toJSON=="function"&&arguments.length===1)return se(s.toJSON(),!0);for(let t in s)if(Object.prototype.hasOwnProperty.call(s,t)&&se(s[t]))return!0;return!1}function mt(s){let e=[],t=s.data,i=s;return i.data=Ae(t,e),i.attachments=e.length,{packet:i,buffers:e}}function Ae(s,e){if(!s)return s;if(re(s)){let t={_placeholder:!0,num:e.length};return e.push(s),t}else if(Array.isArray(s)){let t=new Array(s.length);for(let i=0;i<s.length;i++)t[i]=Ae(s[i],e);return t}else if(typeof s=="object"&&!(s instanceof Date)){let t={};for(let i in s)Object.prototype.hasOwnProperty.call(s,i)&&(t[i]=Ae(s[i],e));return t}return s}function gt(s,e){return s.data=Te(s.data,e),delete s.attachments,s}function Te(s,e){if(!s)return s;if(s&&s._placeholder===!0){if(typeof s.num=="number"&&s.num>=0&&s.num<e.length)return e[s.num];throw new Error("illegal attachments")}else if(Array.isArray(s))for(let t=0;t<s.length;t++)s[t]=Te(s[t],e);else if(typeof s=="object")for(let t in s)Object.prototype.hasOwnProperty.call(s,t)&&(s[t]=Te(s[t],e));return s}var Gt=["connect","connect_error","disconnect","disconnecting","newListener","removeListener"],bt=5,p;(function(s){s[s.CONNECT=0]="CONNECT",s[s.DISCONNECT=1]="DISCONNECT",s[s.EVENT=2]="EVENT",s[s.ACK=3]="ACK",s[s.CONNECT_ERROR=4]="CONNECT_ERROR",s[s.BINARY_EVENT=5]="BINARY_EVENT",s[s.BINARY_ACK=6]="BINARY_ACK"})(p||(p={}));var $e=class{constructor(e){this.replacer=e}encode(e){return(e.type===p.EVENT||e.type===p.ACK)&&se(e)?this.encodeAsBinary({type:e.type===p.EVENT?p.BINARY_EVENT:p.BINARY_ACK,nsp:e.nsp,data:e.data,id:e.id}):[this.encodeAsString(e)]}encodeAsString(e){let t=""+e.type;return(e.type===p.BINARY_EVENT||e.type===p.BINARY_ACK)&&(t+=e.attachments+"-"),e.nsp&&e.nsp!=="/"&&(t+=e.nsp+","),e.id!=null&&(t+=e.id),e.data!=null&&(t+=JSON.stringify(e.data,this.replacer)),t}encodeAsBinary(e){let t=mt(e),i=this.encodeAsString(t.packet),r=t.buffers;return r.unshift(i),r}};function yt(s){return Object.prototype.toString.call(s)==="[object Object]"}var Le=class s extends y{constructor(e){super(),this.reviver=e}add(e){let t;if(typeof e=="string"){if(this.reconstructor)throw new Error("got plaintext data when reconstructing a packet");t=this.decodeString(e);let i=t.type===p.BINARY_EVENT;i||t.type===p.BINARY_ACK?(t.type=i?p.EVENT:p.ACK,this.reconstructor=new Ue(t),t.attachments===0&&super.emitReserved("decoded",t)):super.emitReserved("decoded",t)}else if(re(e)||e.base64)if(this.reconstructor)t=this.reconstructor.takeBinaryData(e),t&&(this.reconstructor=null,super.emitReserved("decoded",t));else throw new Error("got binary data when not reconstructing a packet");else throw new Error("Unknown type: "+e)}decodeString(e){let t=0,i={type:Number(e.charAt(0))};if(p[i.type]===void 0)throw new Error("unknown packet type "+i.type);if(i.type===p.BINARY_EVENT||i.type===p.BINARY_ACK){let n=t+1;for(;e.charAt(++t)!=="-"&&t!=e.length;);let o=e.substring(n,t);if(o!=Number(o)||e.charAt(t)!=="-")throw new Error("Illegal attachments");i.attachments=Number(o)}if(e.charAt(t+1)==="/"){let n=t+1;for(;++t&&!(e.charAt(t)===","||t===e.length););i.nsp=e.substring(n,t)}else i.nsp="/";let r=e.charAt(t+1);if(r!==""&&Number(r)==r){let n=t+1;for(;++t;){let o=e.charAt(t);if(o==null||Number(o)!=o){--t;break}if(t===e.length)break}i.id=Number(e.substring(n,t+1))}if(e.charAt(++t)){let n=this.tryParse(e.substr(t));if(s.isPayloadValid(i.type,n))i.data=n;else throw new Error("invalid payload")}return i}tryParse(e){try{return JSON.parse(e,this.reviver)}catch{return!1}}static isPayloadValid(e,t){switch(e){case p.CONNECT:return yt(t);case p.DISCONNECT:return t===void 0;case p.CONNECT_ERROR:return typeof t=="string"||yt(t);case p.EVENT:case p.BINARY_EVENT:return Array.isArray(t)&&(typeof t[0]=="number"||typeof t[0]=="string"&&Gt.indexOf(t[0])===-1);case p.ACK:case p.BINARY_ACK:return Array.isArray(t)}}destroy(){this.reconstructor&&(this.reconstructor.finishedReconstruction(),this.reconstructor=null)}},Ue=class{constructor(e){this.packet=e,this.buffers=[],this.reconPack=e}takeBinaryData(e){if(this.buffers.push(e),this.buffers.length===this.reconPack.attachments){let t=gt(this.reconPack,this.buffers);return this.finishedReconstruction(),t}return null}finishedReconstruction(){this.reconPack=null,this.buffers=[]}};function S(s,e,t){return s.on(e,t),function(){s.off(e,t)}}var Xt=Object.freeze({connect:1,connect_error:1,disconnect:1,disconnecting:1,newListener:1,removeListener:1}),W=class extends y{constructor(e,t,i){super(),this.connected=!1,this.recovered=!1,this.receiveBuffer=[],this.sendBuffer=[],this._queue=[],this._queueSeq=0,this.ids=0,this.acks={},this.flags={},this.io=e,this.nsp=t,i&&i.auth&&(this.auth=i.auth),this._opts=Object.assign({},i),this.io._autoConnect&&this.open()}get disconnected(){return!this.connected}subEvents(){if(this.subs)return;let e=this.io;this.subs=[S(e,"open",this.onopen.bind(this)),S(e,"packet",this.onpacket.bind(this)),S(e,"error",this.onerror.bind(this)),S(e,"close",this.onclose.bind(this))]}get active(){return!!this.subs}connect(){return this.connected?this:(this.subEvents(),this.io._reconnecting||this.io.open(),this.io._readyState==="open"&&this.onopen(),this)}open(){return this.connect()}send(...e){return e.unshift("message"),this.emit.apply(this,e),this}emit(e,...t){if(Xt.hasOwnProperty(e))throw new Error('"'+e.toString()+'" is a reserved event name');if(t.unshift(e),this._opts.retries&&!this.flags.fromQueue&&!this.flags.volatile)return this._addToQueue(t),this;let i={type:p.EVENT,data:t};if(i.options={},i.options.compress=this.flags.compress!==!1,typeof t[t.length-1]=="function"){let o=this.ids++,c=t.pop();this._registerAckCallback(o,c),i.id=o}let r=this.io.engine&&this.io.engine.transport&&this.io.engine.transport.writable;return this.flags.volatile&&(!r||!this.connected)||(this.connected?(this.notifyOutgoingListeners(i),this.packet(i)):this.sendBuffer.push(i)),this.flags={},this}_registerAckCallback(e,t){var i;let r=(i=this.flags.timeout)!==null&&i!==void 0?i:this._opts.ackTimeout;if(r===void 0){this.acks[e]=t;return}let n=this.io.setTimeoutFn(()=>{delete this.acks[e];for(let o=0;o<this.sendBuffer.length;o++)this.sendBuffer[o].id===e&&this.sendBuffer.splice(o,1);t.call(this,new Error("operation has timed out"))},r);this.acks[e]=(...o)=>{this.io.clearTimeoutFn(n),t.apply(this,[null,...o])}}emitWithAck(e,...t){let i=this.flags.timeout!==void 0||this._opts.ackTimeout!==void 0;return new 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i=t.getAllResponseHeaders().split("\r\n"),r=Number(new Date)-Number(t.responseURL.split("=")[1]);this.set("ping",{success:t.status===201||t.status===204,status:t.status,headers:i,url:t.responseURL,elapsedTime:r})}),u(this,q)&&(clearInterval(u(this,q)),A(this,q,void 0)),t.open("GET","".concat(this.httpNodeRoot,"/uibuilder/ping?t=").concat(Number(new Date))),t.send(),e>0&&A(this,q,setInterval(()=>{t.open("GET","".concat(this.httpNodeRoot,"/uibuilder/ping?t=").concat(Number(new Date))),t.send()},e))}log(){a(...arguments)()}syntaxHighlight(e){return kt(e)}copyToClipboard(e){let t="";try{console.log(this.get(e),JSON.stringify(this.get(e))),t=JSON.stringify(this.get(e))}catch(i){a("error","copyToClipboard",'Could not copy "'.concat(e,'" to clipboard.'),i.message)()}navigator.clipboard.writeText(t)}elementIsVisible(){return a("error","uib:elementIsVisible","elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex")(),this.send({payload:"elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex"}),!1}elementExists(e,t=!0){let i=document.querySelector(e),r=!1;return i!==null&&(r=!0),t===!0&&this.send({payload:r,info:'Element "'.concat(e,'" ').concat(r?"exists":"does not exist")}),r}keepHashFromUrl(e){return e?"#"+e.replace(/^.*#(.*)/,"$1").replace(/\?.*$/,""):""}_watchHashChanges(){this.set("urlHash",location.hash),window.addEventListener("hashchange",e=>{this.set("urlHash",location.hash),u(this,H)===!0&&this.send({topic:"hashChange",payload:location.hash,newHash:this.keepHashFromUrl(e.newURL),oldHash:this.keepHashFromUrl(e.oldURL)})})}truthy(e,t){let i;return["on","On","ON","true","True","TRUE","1",!0,1].includes(e)?i=!0:["off","Off","OFF","false","False","FALSE","0",!1,0].includes(e)?i=!1:i=t,i}watchUrlHash(e){return A(this,H,this.truthy(e,u(this,H)!==!0)),u(this,H)}navigate(e){return 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client",class:"text-smaller"},components:[{type:"table",components:[{type:"tbody",components:[]}]}]}]},r=i.components[0].components[0].components[0].components;return Object.values(u(this,ce)).forEach(n=>{r.push({type:"tr",attributes:{title:n.description},components:[{type:"th",slot:n.label},{type:"td",attributes:{"data-varType":n.var},slot:n.var==="version"?E._meta.version:JSON.stringify(this[n.var])}]})}),g._uiReplace(i),e}uiWatch(e,t="toggle",i=!0,r=!0){let n=document.querySelector(e);if(!n)return a("warn","uibuilder.module.js:uiWatch","CSS Selector '".concat(e,"' not found."))(),!1;(t==="toggle"||t===void 0||t===null)&&(u(this,M)[e]?t=!1:t=!0);let o=this;return t===!0?(u(this,M)[e]=new MutationObserver(function(c){let l=[];c.forEach(f=>{let b={type:f.type,oldValue:f.oldValue!==null?f.oldValue:void 0};f.addedNodes.length>0&&(b.addedNodes=[],f.addedNodes.forEach((x,k)=>{b.addedNodes.push(g.nodeGet(f.addedNodes[k]))})),f.removedNodes.length>0&&(b.removedNodes=[],f.removedNodes.forEach((x,k)=>{b.removedNodes.push(g.nodeGet(f.removedNodes[k]))})),f.type==="attributes"&&(b.attributeName=f.attributeName,b.newValue=f.target.attributes[f.attributeName].value),l.push(b)}),o._dispatchCustomEvent("uibuilder:domChange",l),i===!0&&o.send({_ui:{cssSelector:e,uiChanges:l},topic:o.topic||"DOM Changes for '".concat(e,"'")}),r===!0&&a("info","uibuilder.module.js:uiWatch","DOM Changes for '".concat(e,"'"),{uiChanges:l},{mutationList:c})()}),u(this,M)[e].observe(n,{attributes:!0,childList:!0,subtree:!0,characterData:!0}),a("trace","uibuilder.module.js:uiWatch","Started Watching DOM changes for '".concat(e,"'"))()):(u(this,M)[e].disconnect(),delete u(this,M)[e],a("trace","uibuilder.module.js:uiWatch","Stopped Watching DOM changes for '".concat(e,"'"))()),t}clearHtmlCache(){this.removeStore("htmlCache"),a("trace","uibuilder.module.js:clearHtmlCache","HTML cache cleared")()}restoreHtmlFromCache(){let e=this.getStore("htmlCache");if(e){let t=document.getElementsByTagName("html")[0];t.innerHTML=e,a("trace","uibuilder.module.js:restoreHtmlFromCache","Restored HTML from cache")()}else a("trace","uibuilder.module.js:restoreHtmlFromCache","No cache to restore")()}saveHtmlCache(){this.setStore("htmlCache",document.documentElement.innerHTML)}watchDom(e){let t=document.documentElement,i=this;this._htmlObserver||(this._htmlObserver=new MutationObserver(function(){this.takeRecords(),i.saveHtmlCache()})),e===!0||e===void 0?(this._htmlObserver.observe(t,{attributes:!0,childList:!0,subtree:!0,characterData:!0}),a("trace","uibuilder.module.js:watchDom","Started Watching and saving DOM changes")()):(this._htmlObserver.disconnect(),a("trace","uibuilder.module.js:watchDom","Stopped Watching and saving DOM changes")())}_send(e,t,i=""){t==null&&(t=this._ioChannels.client),t===this._ioChannels.client?e=Me(e,"payload"):t===this._ioChannels.control&&(e=Me(e,"uibuilderCtrl"),Object.prototype.hasOwnProperty.call(e,"uibuilderCtrl")||(e.uibuilderCtrl="manual send"),e.from="client"),e._socketId=this._socket.id,i===""&&this.originator!==""&&(i=this.originator),i!==""&&Object.assign(e,{_uib:{originator:i}}),Object.prototype.hasOwnProperty.call(e,"topic")||(this.topic!==void 0&&this.topic!==""?e.topic=this.topic:Object.prototype.hasOwnProperty.call(this,"msg")&&Object.prototype.hasOwnProperty.call(this.msg,"topic")&&(e.topic=this.msg.topic)),e._ui&&(e._ui.from="client");let r;t===this._ioChannels.client?(this.set("sentMsg",e),r=this.set("msgsSent",++this.msgsSent)):t===this._ioChannels.control&&(this.set("sentCtrlMsg",e),r=this.set("msgsSentCtrl",++this.msgsSentCtrl)),a("trace","Uib:_send"," Channel '".concat(t,"'. 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Arg Type: ".concat(e.constructor.name),e)();return}e.preventDefault();let i=e.currentTarget,r={};Object.keys(i).forEach(m=>{m.startsWith("_")||(r[m]=i[m])});let n=["class","id","name"],o;try{o=Object.assign({},...Array.from(i.attributes,({name:m,value:_e})=>{if(!n.includes(m))return{[m]:_e}}))}catch{}let c,l=[];i.form&&(c={},c.valid=i.form.checkValidity(),Object.values(i.form).forEach((m,_e)=>{let V=m.id!==""?m.id:m.name!==""?m.name:"".concat(_e,"-").concat(m.type);if(V!==""&&m.type){if("checked"in m&&m.value==="on"&&(m.value=m.checked.toString()),l.push({key:V,val:m.value}),c[V]={id:m.id,name:m.name,value:m.value,valid:m.checkValidity(),type:m.type},c[V].valid===!1){let w=m.validity;c[V].validity={badInput:w.badInput===!0?w.badInput:void 0,customError:w.customError===!0?w.customError:void 0,patternMismatch:w.patternMismatch===!0?w.patternMismatch:void 0,rangeOverflow:w.rangeOverflow===!0?w.rangeOverflow:void 0,rangeUnderflow:w.rangeUnderflow===!0?w.rangeUnderflow:void 0,stepMismatch:w.stepMismatch===!0?w.stepMismatch:void 0,tooLong:w.tooLong===!0?w.tooLong:void 0,tooShort:w.tooShort===!0?w.tooShort:void 0,typeMismatch:w.typeMismatch===!0?w.typeMismatch:void 0,valueMissing:w.valueMissing===!0?w.valueMissing:void 0}}m.dataset&&(c[V].data=m.dataset)}}));let f;try{f=Array.from(i.classList)}catch{}let b={...i.dataset},x;Object.prototype.toString.call(i)==="[object Notification]"&&(b="notification-".concat(i.userAction),x={actions:i.actions,badge:i.badge,body:i.body,data:i.data,dir:i.dir,icon:i.icon,image:i.image,lang:i.lang,renotify:i.renotify,requireInteraction:i.requireInteraction,silent:i.silent,tag:i.tag,timestamp:i.timestamp,title:i.title,vibrate:i.vibrate});let k={payload:b,_ui:{type:"eventSend",id:i.id!==""?i.id:void 0,name:i.name!==""?i.name:void 0,slotText:i.textContent?i.textContent.substring(0,255):void 0,form:c,props:r,attribs:o,classes:f,notification:x,event:e.type,altKey:e.altKey,ctrlKey:e.ctrlKey,shiftKey:e.shiftKey,metaKey:e.metaKey,pointerType:e.pointerType,nodeName:i.nodeName,clientId:this.clientId,pageName:this.pageName,tabId:this.tabId}};l.length>0&&l.forEach(m=>{k.payload[m.key]=m.val}),e.type==="change"&&(k._ui.newValue=k.payload.value="checked"in i?i.checked:e.target.value),a("trace","Uib:eventSend","Sending msg to Node-RED",k)(),i.dataset&&i.dataset.length===0&&a("warn","Uib:eventSend","No payload in msg. data-* attributes should be used.")(),this._send(k,this._ioChannels.client,t)}htmlSend(e="",t=!0){let i="<!doctype html>\n".concat(document.documentElement.outerHTML),r={payload:i,length:i.length,topic:this.topic};return a("trace","Uib:htmlSend","Sending full HTML to Node-RED",r)(),t===!0&&this._send(r,this._ioChannels.client,e),i}_uibCommand(e){var l;if(!e._uib||!e._uib.command){a("error","uibuilder:_uibCommand","Invalid command message 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f=!1,b=!1;e._uib.options&&e._uib.options.store&&(e._uib.options.store===!0&&(f=!0),e._uib.options.autoload===!0&&(b=!0)),o=this.set(i,r,f,b);break}case"showMsg":{o=this.showMsg(r,i);break}case"showStatus":{o=this.showStatus(r,i);break}case"uiGet":{o=g.uiGet(i,r);break}case"uiWatch":{o=this.uiWatch(i);break}case"watchUrlHash":{o=this.watchUrlHash(i);break}default:{a("warning","Uib:_uibCommand","Command '".concat(t,"' not yet implemented"))();break}}n!==!0&&(o===void 0&&(o="'".concat(i,"' is undefined")),Object(o).constructor===Promise?o.then(f=>(e.payload=e._uib.response=f,e.info=e._uib.info=c,e.topic||(e.topic=this.topic||"uib ".concat(t," for '").concat(i,"'")),this.send(e),!0)).catch(f=>{a(0,"Uib:_uibCommand","Error: ",f)()}):(e.payload=e._uib.response=o,e.info=e._uib.info=c,e.topic||(e.topic=this.topic||"uib ".concat(t," for '").concat(i,"'")),this.send(e)))}_forThis(e){let t=!0;return e.pageName&&e.pageName!==this.pageName&&(a("trace","Uib:_msgRcvdEvents:_uib","Not for this 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Version: ".concat(e.version,"\nServer time: ").concat(e.serverTimestamp,", Sever time offset: ").concat(this.serverTimeOffset," hours"))(),E._meta.version.startsWith(e.version.split("-")[0])||a("warn","Uib:ioSetup:".concat(this._ioChannels.control),"Server version (".concat(e.version,") not the same as the client version (").concat(E._meta.version,")"))(),this.autoSendReady===!0&&a("trace","Uib:ioSetup:".concat(this._ioChannels.control,"/client connect"),"Auto-sending ready-for-content/replay msg to server");break}default:a("trace","uibuilderfe:ioSetup:".concat(this._ioChannels.control),"Received ".concat(e.uibuilderCtrl," from server"))}}beaconLog(e,t){t||(t="debug"),navigator.sendBeacon("./_clientLog","".concat(t,"::").concat(e))}logToServer(){this.sendCtrl({uibuilderCtrl:"client log message",payload:arguments,_socketId:this._socket.id,clientId:this.clientId,tabId:this.tabId,pageName:this.pageName,connections:this.connectedNum,lastNavType:this.lastNavType})}_getIOnamespace(){let e;if(e=this.cookies["uibuilder-namespace"],e===void 0||e===""){let t=window.location.pathname.split("/").filter(function(i){return i.trim()!==""});t.length>0&&t[t.length-1].endsWith(".html")&&t.pop(),e=t.pop(),a("trace","uibuilder.module.js:getIOnamespace","Socket.IO namespace found via url path: ".concat(e))()}else a("trace","uibuilder.module.js:getIOnamespace","Socket.IO namespace found via cookie: ".concat(e))();return this.url=e,e="/"+e,a("trace","uibuilder.module.js:getIOnamespace","Final Socket.IO namespace: ".concat(e))(),e}_checkConnect(e,t,i=1){if(navigator.onLine!==!1)return e||(e=this.retryMs),t||(t=this.retryFactor),a("trace","Uib:checkConnect","Checking connection. Connected: ".concat(this._socket.connected,". Timer: ").concat(u(this,_),". Depth: ").concat(i,". Delay: ").concat(e,". Factor: ").concat(t),this._socket)(),this._socket.connected===!0?(u(this,_)&&(window.clearTimeout(u(this,_)),A(this,_,null)),this.set("ioConnected",!0),this.set("socketError",null),!0):(this.set("ioConnected",!1),u(this,_)&&window.clearTimeout(u(this,_)),A(this,_,window.setTimeout(()=>{a("warn","Uib:checkConnect:setTimeout","Socket.IO reconnection attempt. Current delay: ".concat(e,". Depth: ").concat(i))(),this._socket.close(),this._socket.connect(),A(this,_,null),this._checkConnect(e*t,t,i++)},e)),!1)}_onConnect(){a("info","Uib:ioSetup","\u2705 SOCKET CONNECTED. Connection count: ".concat(this.connectedNum,", Is a Recovery?: ").concat(this._socket.recovered,". \nNamespace: ").concat(this.ioNamespace))(),this._dispatchCustomEvent("uibuilder:socket:connected",{numConnections:this.connectedNum,isRecovery:this._socket.recovered}),this._checkConnect()}_onDisconnect(e){a("info","Uib:ioSetup:socket-disconnect","\u26D4 Socket Disconnected. Reason: ".concat(e))(),this._dispatchCustomEvent("uibuilder:socket:disconnected",e),this._checkConnect()}_ioSetup(){return J===void 0?(a("error","Uib:ioSetup","Socket.IO client not loaded, Node-RED comms will not work")(),!1):(this._socket&&(a("trace","Uib:ioSetup","Removing listeners in preparation for redoing Socket.IO connections")(),u(this,_)&&(window.clearTimeout(u(this,_)),A(this,_,null)),this._socket.close(),this._socket.offAny(),this._socket=void 0,this.set("ioConnected",!1)),this.socketOptions.path=this.ioPath,a("trace","Uib:ioSetup","About to create IO object. Transports: [".concat(this.socketOptions.transports.join(", "),"]"))(),this._socket=J(this.ioNamespace,this.socketOptions),this._socket.on("connect",this._onConnect.bind(this)),this._socket.on(this._ioChannels.server,this._stdMsgFromServer.bind(this)),this._socket.on(this._ioChannels.control,this._ctrlMsgFromServer.bind(this)),this._socket.on("disconnect",this._onDisconnect.bind(this)),this._socket.on("connect_error",e=>{navigator.onLine!==!1&&(a("error","Uib:ioSetup:connect_error","\u274C Socket.IO Connect Error. Reason: ".concat(e.message),e)(),this.set("ioConnected",!1),this.set("socketError",e),this._dispatchCustomEvent("uibuilder:socket:disconnected",e))}),this._socket.on("error",e=>{a("error","Uib:ioSetup:error","\u274C Socket.IO Error. Reason: ".concat(e.message),e)(),this.set("ioConnected",!1),this.set("socketError",e),this._dispatchCustomEvent("uibuilder:socket:disconnected",e)}),this._checkConnect(),!0)}start(e){a("trace","Uib:start","Starting")(),u(this,oe)&&this.cancelChange("msg",u(this,oe)),this.started===!0&&a("info","Uib:start","Start function already called. Resetting Socket.IO and msg handler.")(),a("log","Uib:start","Cookies: ",this.cookies,"\nClient ID: ".concat(this.clientId))(),a("trace","Uib:start","ioNamespace: ",this.ioNamespace,"\nioPath: ".concat(this.ioPath))(),e&&(e.ioNamespace!==void 0&&e.ioNamespace!==null&&e.ioNamespace!==""&&this.set("ioNamespace",e.ioNamespace),e.ioPath!==void 0&&e.ioPath!==null&&e.ioPath!==""&&this.set("ioPath",e.ioPath)),document.styleSheets.length>=1||document.styleSheets.length===1&&document.styleSheets[0].cssRules.length===0?a("info","Uib:start","Styles already loaded so not loading uibuilder default styles.")():e&&e.loadStylesheet===!1?a("info","Uib:start","No styles loaded & options.loadStylesheet === false.")():(a("info","Uib:start","No styles loaded, loading uibuilder default styles.")(),this.loadStyleSrc("".concat(this.httpNodeRoot,"/uibuilder/uib-brand.min.css")));let[t]=performance.getEntriesByType("navigation");if(this.set("lastNavType",t.type),this.set("started",this._ioSetup()),this.started===!0?a("trace","Uib:start","Start completed. Socket.IO client library loaded.")():a("error","Uib:start","Start completed. ERROR: Socket.IO client library NOT LOADED.")(),this._watchHashChanges(),window.Vue){this.set("isVue",!0);try{this.set("vueVersion",window.Vue.version)}catch{}a("trace","Uib:start","VueJS is loaded. Version: ".concat(this.vueVersion))()}else a("trace","Uib:start","VueJS is not loaded.")();window.DOMPurify?(this.set("purify",!0),a("trace","Uib:start","DOMPurify is loaded.")()):a("trace","Uib:start","DOMPurify is not loaded.")(),window.markdownit?(this.set("markdown",!0),a("trace","Uib:start","Markdown-IT is loaded.")()):a("trace","Uib:start","Markdown-IT is not loaded.")(),this.onChange("msg",i=>{if(u(this,z)===!0){let r=document.getElementById("uib_last_msg");r&&(r.innerHTML=this.syntaxHighlight(i))}}),this._dispatchCustomEvent("uibuilder:startComplete")}},q=new WeakMap,O=new WeakMap,T=new WeakMap,_=new WeakMap,oe=new WeakMap,z=new WeakMap,Y=new WeakMap,H=new WeakMap,ve=new WeakMap,ae=new WeakMap,ce=new WeakMap,M=new WeakMap,h(E,"_meta",{version:wt,type:"module",displayName:"uibuilder"}),E),ke=new ei;window.uibuilder?a("error","uibuilder.module.js","`uibuilder` already assigned to window. Have you tried to load it more than once?"):window.uibuilder=ke;window.uib?a("warn","uibuilder.module.js","`uib` shortcut already assigned to window."):window.uib=ke;window.$?a("warn","uibuilder.module.js","Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` instead."):window.$=window.uibuilder.$;window.$$?a("warn","uibuilder.module.js","Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` instead."):window.$$=window.uibuilder.$$;var Js=ke;ke.start();customElements.define("uib-var",G);export{ei as Uib,Js as default,ke as uibuilder};
 //# sourceMappingURL=uibuilder.esm.min.js.map
diff --git a/front-end/uibuilder.esm.min.js.map b/front-end/uibuilder.esm.min.js.map
index e5ed890b..20ae7c4c 100644
--- a/front-end/uibuilder.esm.min.js.map
+++ b/front-end/uibuilder.esm.min.js.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
   "sources": ["src/front-end-module/ui.js", "src/front-end-module/uibuilder.module.js", "src/components/uib-var.js", "node_modules/engine.io-parser/build/esm/commons.js", "node_modules/engine.io-parser/build/esm/encodePacket.browser.js", "node_modules/engine.io-parser/build/esm/contrib/base64-arraybuffer.js", "node_modules/engine.io-parser/build/esm/decodePacket.browser.js", "node_modules/engine.io-parser/build/esm/index.js", "node_modules/@socket.io/component-emitter/index.mjs", "node_modules/engine.io-client/build/esm/globalThis.browser.js", "node_modules/engine.io-client/build/esm/util.js", "node_modules/engine.io-client/build/esm/contrib/parseqs.js", "node_modules/engine.io-client/build/esm/transport.js", "node_modules/engine.io-client/build/esm/contrib/yeast.js", "node_modules/engine.io-client/build/esm/contrib/has-cors.js", "node_modules/engine.io-client/build/esm/transports/xmlhttprequest.browser.js", "node_modules/engine.io-client/build/esm/transports/polling.js", "node_modules/engine.io-client/build/esm/transports/websocket-constructor.browser.js", "node_modules/engine.io-client/build/esm/transports/websocket.js", "node_modules/engine.io-client/build/esm/transports/webtransport.js", "node_modules/engine.io-client/build/esm/transports/index.js", "node_modules/engine.io-client/build/esm/contrib/parseuri.js", "node_modules/engine.io-client/build/esm/socket.js", "node_modules/engine.io-client/build/esm/index.js", "node_modules/socket.io-client/build/esm/url.js", "node_modules/socket.io-parser/build/esm/index.js", "node_modules/socket.io-parser/build/esm/is-binary.js", "node_modules/socket.io-parser/build/esm/binary.js", "node_modules/socket.io-client/build/esm/on.js", "node_modules/socket.io-client/build/esm/socket.js", "node_modules/socket.io-client/build/esm/contrib/backo2.js", "node_modules/socket.io-client/build/esm/manager.js", "node_modules/socket.io-client/build/esm/index.js"],
-  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\nconst Ui = class Ui {\n    version = '6.6.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        this._uiManager(msg)\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += msg.payload\n        if (ui.content) content += ui.content\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    // Namespaces - See https://stackoverflow.com/a/52572048/1309986\n    // const NAMESPACES = {\n    //     svg: 'http://www.w3.org/2000/svg',\n    //     html: 'http://www.w3.org/1999/xhtml',\n    //     xml: 'http://www.w3.org/XML/1998/namespace',\n    //     xlink: 'http://www.w3.org/1999/xlink',\n    //     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n    // }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n\n    } // --- end of _uiManager ---\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName !== null && propName !== '') {\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    // Nightmare of different object types in a DOM Element!\n                    if (prop.constructor.name === 'NamedNodeMap') { // Attributes\n                        const p = {}\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                        out.push(p)\n                    } else if (!prop.constructor.name.toLowerCase().includes('map')) { // Ordinary properties\n                        out.push({\n                            [propName]: prop\n                        })\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                        out.push(p)\n                    }\n                }\n\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n", "/* This is the Front-End JavaScript for uibuilder  in HTML Module form\n  It provides a number of global objects that can be used in your own javascript.\n  see the docs folder `./docs/uibuilder.module.md` for details of how to use this fully.\n\n  Please use the default index.js file for your own code and leave this as-is.\n  See Uib._meta for client version string\n\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n//#region --- Type Defs --- //\n/**\n * A string containing HTML markup\n * @typedef {string} html\n */\n//#endregion --- Type Defs --- //\n\n//#region --- We need the Socket.IO & ui libraries & the uib-var component  --- //\n// @ts-ignore - Note: Only works when using esbuild to bundle\nimport Ui from './ui'\nimport UibVar from '../components/uib-var'\nimport io from 'socket.io-client'\n\n// TODO - Maybe - check if already loaded as window['io']?\n// TODO - Maybe - Should this be moved to inside the class - would know the httpRoot then so less need to guess?\n// TODO           Or, could pull the cookie processing out of the class\n// const ioLocns = [ // Likely locations of the Socket.IO client library\n//     // Where it should normally be\n//     '../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and haven't changed httpNodeRoot\n//     '/uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and have changed httpNodeRoot\n//     '../../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Direct from the Internet - last ditch attempt\n//     'https://cdn.jsdelivr.net/npm/socket.io-client/+esm',\n// ]\n\n// let io\n// for (const locn of ioLocns) {\n//     try {\n//         ({ io } = await import(locn))\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library found at '${locn}'`)()\n//     } catch (e) {\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library not found at '${locn}'`)()\n//     }\n//     if (io) break\n// }\n// if (!io) log('error', 'uibuilder.module.js', 'Socket.IO client failed to load')()\n//#endregion -------- -------- -------- //\n\nconst version = '6.6.0-src'\n\n// TODO Add option to allow log events to be sent back to Node-RED as uib ctrl msgs\n//#region --- Module-level utility functions --- //\n\n// @ts-ignore Detect whether the loaded library is minified or not\nconst isMinified = !(/param/).test(function (param) { }) // eslint-disable-line no-unused-vars\n\n//#region --- print/console - debugging output functions --- //\n\n/** Default log level - Error & Warn */\nlet logLevel = isMinified ? 0 : 1  // When using minified lib, assume production and only log errors otherwise also log warn\n// function changeLogLevel(level) {\n//     logLevel = level\n//     console.trace = logLevel < 4 ? function(){} : console.trace\n//     console.debug = logLevel < 2 ? function(){} : console.debug\n//     if ( logLevel < 1 ) {\n//         console.log = console.group = console.groupEnd =  function(){}\n//     }\n// }\n\n// Experimental\nconst LOG_STYLES = {\n    // 0\n    error: {\n        css: 'background: red; color: black;',\n        txtCss: 'color: red; ',\n        pre: '\u26D4 ',\n        console: 'error',  // or trace\n    },\n    // 1\n    warn: {\n        css: 'background: darkorange; color: black;',\n        txtCss: 'color: darkorange; ',\n        pre: '\u26A0 ',\n        console: 'warn',\n    },\n    // 2\n    info: {\n        css: 'background: aqua; color: black;',\n        txtCss: 'color: aqua;',\n        pre: '\u2757 ',\n        console: 'info',\n    },\n    // 3\n    log: {\n        css: 'background: grey; color: yellow;',\n        txtCss: 'color: grey;',\n        pre: '',\n        console: 'log',\n    },\n    // 4\n    debug: {\n        css: 'background: chartreuse; color: black;',\n        txtCss: 'color: chartreuse;',\n        pre: '',\n        console: 'debug',\n    },\n    // 5\n    trace: {\n        css: 'background: indigo; color: yellow;',\n        txtCss: 'color: hotpink;',\n        pre: '',\n        console: 'log',\n    },\n\n    names: ['error', 'warn', 'info', 'log', 'debug', 'trace'],\n    reset: 'color: inherit;',\n    head: 'font-weight:bold; font-style:italic;',\n    level: 'font-weight:bold; border-radius: 3px; padding: 2px 5px; display:inline-block;',\n}\n/** Custom logging. e.g. log(2, 'here:there', 'jiminy', {fred:'jim'})()\n * @returns {Function} Log function @example log(2, 'here:there', 'jiminy', {fred:'jim'})()\n */\nfunction log() {\n    // Get the args\n    const args = Array.prototype.slice.call(arguments)\n\n    // 1st arg is the log level/type\n    let level = args.shift()\n    let strLevel\n    switch (level) {\n        case 'trace':\n        case 5: {\n            if (logLevel < 5) break\n            level = 5 // make sure level is numeric\n            strLevel = 'trace'\n            break\n        }\n\n        case 'debug':\n        case 4: {\n            if (logLevel < 4) break\n            level = 4\n            strLevel = 'debug'\n            break\n        }\n\n        case 'log':\n        case 3: {\n            if (logLevel < 3) break\n            level = 3\n            strLevel = 'log'\n            break\n        }\n\n        case 'info':\n        case '':\n        case 2: {\n            if (logLevel < 2) break\n            level = 2\n            strLevel = 'info'\n            break\n        }\n\n        case 'warn':\n        case 1: {\n            if (logLevel < 1) break\n            level = 1\n            strLevel = 'warn'\n            break\n        }\n\n        case 'error':\n        case 'err':\n        case 0: {\n            if (logLevel < 0) break\n            level = 0\n            strLevel = 'error'\n            break\n        }\n\n        default: {\n            level = -1\n            break\n        }\n\n    }\n\n    // If set to something unknown, no log output\n    if (strLevel === undefined) return function () { }\n\n    // 2nd arg is a heading that will be colour highlighted\n    const head = args.shift()\n\n    // Bind back to console.log (could use console[strLevel] but some levels ignore some formatting, use console.xxx directly or dedicated fn)\n    return Function.prototype.bind.call(\n        console[LOG_STYLES[strLevel].console],\n        console,\n        `%c${LOG_STYLES[strLevel].pre}${strLevel}%c [${head}]`, `${LOG_STYLES.level} ${LOG_STYLES[strLevel].css}`, `${LOG_STYLES.head} ${LOG_STYLES[strLevel].txtCss}`,\n        ...args\n    )\n}\n//#endregion\n\n/** A hack to dynamically load a remote module and wait until it is loaded\n * @param {string} url The URL of the module to load\n * @returns {object|null} Either the result object or null (if the load fails)\n */\n// function loadModule(url) { // eslint-disable-line no-unused-vars\n//     let done\n\n//     import(url)\n//         .then(res => {\n//             log('debug', '>> then >>', res)()\n//             done = res\n//         })\n//         .catch(err => {\n//             console.error(`[uibuilder:loadModule] Could not load module ${url}`, err)\n//             done = null\n//         })\n\n//     //  eslint-disable-next-line no-empty\n//     while (!done) { } // eslint-disable-line no-unmodified-loop-condition\n\n//     return done\n// }\n\n/** Makes a null or non-object into an object\n * If not null, moves \"thing\" to {payload:thing}\n *\n * @param {*} thing Thing to check\n * @param {string} [property='payload'] property that \"thing\" is moved to if not null and not an object\n * @returns {!object} _\n */\nfunction makeMeAnObject(thing, property) {\n    if (!property) property = 'payload'\n    if (typeof property !== 'string') {\n        log('warn', 'uibuilderfe:makeMeAnObject', `WARNING: property parameter must be a string and not: ${typeof property}`)()\n        property = 'payload'\n    }\n    let out = {}\n    if ( thing !== null && thing.constructor.name === 'Object' ) {\n        out = thing\n    } else if (thing !== null) {\n        out[property] = thing\n    }\n    return out\n} // --- End of make me an object --- //\n\n/** Joins all arguments as a URL string\n * see http://stackoverflow.com/a/28592528/3016654\n * since v1.0.10, fixed potential double // issue\n * arguments {string} URL fragments\n * @returns {string} _\n */\nfunction urlJoin() {\n    const paths = Array.prototype.slice.call(arguments)\n    const url = '/' + paths.map(function (e) {\n        return e.replace(/^\\/|\\/$/g, '')\n    })\n        .filter(function (e) {\n            return e\n        })\n        .join('/')\n    return url.replace('//', '/')\n} // ---- End of urlJoin ---- //\n\n/** Convert JSON to Syntax Highlighted HTML\n * @param {object} json A JSON/JavaScript Object\n * @returns {html} Object reformatted as highlighted HTML\n */\nfunction syntaxHighlight(json) {\n    if (json === undefined) {\n        json = '<span class=\"undefined\">undefined</span>'\n    } else {\n        try {\n            json = JSON.stringify(json, undefined, 4)\n            // json = json.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;') // eslint-disable-line newline-per-chained-call\n            json = json.replace(/(\"(\\\\u[a-zA-Z0-9]{4}|\\\\[^u]|[^\\\\\"])*\"(\\s*:)?|\\b(true|false|null)\\b|-?\\d+(?:\\.\\d*)?(?:[eE][+-]?\\d+)?)/g, function (match) { // eslint-disable-line prefer-named-capture-group\n                let cls = 'number'\n                if ((/^\"/).test(match)) {\n                    if ((/:$/).test(match)) {\n                        cls = 'key'\n                    } else {\n                        cls = 'string'\n                    }\n                } else if ((/true|false/).test(match)) {\n                    cls = 'boolean'\n                } else if ((/null/).test(match)) {\n                    cls = 'null'\n                }\n                return `<span class=\"${cls}\">${match}</span>`\n            })\n        } catch (e) {\n            json = `Syntax Highlight ERROR: ${e.message}`\n        }\n    }\n    return json\n}\n\n/** msg._ui handling functions */\nconst _ui = new Ui(window, log, syntaxHighlight)\n\n//#endregion --- Module-level utility functions --- //\n\n/** Define and export the Uib class - note that an instance of the class is also exported in the wrap-up\n * @typicalname uibuilder\n */\nexport const Uib = class Uib {\n\n    //#region --- Static variables ---\n    static _meta = {\n        version: version,\n        type: 'module',\n        displayName: 'uibuilder',\n    }\n    //#endregion ---- ---- ---- ----\n\n    //#region private class vars\n\n    // How many times has the loaded instance connected to Socket.IO (detect if not a new load?)\n    connectedNum = 0\n    // event listener callbacks by property name\n    // #events = {}\n    // Socket.IO channel names\n    _ioChannels = { control: 'uiBuilderControl', client: 'uiBuilderClient', server: 'uiBuilder' }\n    /** setInterval holder for pings @type {function|undefined} */\n    #pingInterval\n    // onChange event callbacks\n    #propChangeCallbacks = {}\n    // onTopic event callbacks\n    #msgRecvdByTopicCallbacks = {}\n    // Is Vue available?\n    isVue = false\n    // What version? Set in startup if Vue is loaded. Won't always work\n    vueVersion = undefined\n    /** setInterval id holder for Socket.IO checkConnect\n     * @type {number|null}\n     */\n    #timerid = null\n    // Holds the reference ID for the internal msg change event handler so that it can be cancelled\n    #MsgHandler\n    // Placeholder for io.socket - can't make a # var until # fns allowed in all browsers\n    _socket\n    // Placeholder for an observer that watches the whole DOM for changes - can't make a # var until # fns allowed in all browsers\n    _htmlObserver\n    // Has showMsg been turned on?\n    #isShowMsg = false\n    // Has showStatus been turned on?\n    #isShowStatus = false\n    // Has an IntersectionObserver been created? If so, this will hold the reference to it\n    #intersectionObserver = undefined\n    // If true, URL hash changes send msg back to node-red. Controlled by watchUrlHash()\n    #sendUrlHash = false\n    // Externally accessible command functions (NB: Case must match) - remember to update _uibCommand for new commands\n    #extCommands = [\n        'get', 'set', 'htmlSend', 'showMsg', 'showStatus', 'uiGet', 'uiWatch', 'include', 'elementExists',\n        'getManagedVarList', 'getWatchedVars',\n    ]\n\n    /** @type {{[key: string]: string}} Managed uibuilder variables */\n    #managedVars = {}\n\n    // What status variables to show via showStatus()\n    #showStatus = {\n        online: { 'var': 'online', 'label': 'Online?', 'description': 'Is the browser online?', },\n        ioConnected: { 'var': 'ioConnected', 'label': 'Socket.IO connected?', 'description': 'Is Socket.IO connected?', },\n        connectedNum: { 'var': 'connectedNum', 'label': '# reconnections', 'description': 'How many times has Socket.IO had to reconnect since last page load?', },\n\n        clientId: { 'var': 'clientId', 'label': 'Client ID', 'description': 'Static client unique id set in Node-RED. Only changes when browser is restarted.', },\n        tabId: { 'var': 'tabId', 'label': 'Browser tab ID', 'description': 'Static unique id for the browser\\'s current tab', },\n        cookies: { 'var': 'cookies', 'label': 'Cookies', 'description': 'Cookies set in Node-RED', },\n        httpNodeRoot: { 'var': 'httpNodeRoot', 'label': 'httpNodeRoot', 'description': 'From Node-RED\\' settings.js, affects URL\\'s. May be wrong for pages in sub-folders', },\n        pageName: { 'var': 'pageName', 'label': 'Page name', 'description': 'Actual name of this page', },\n\n        ioNamespace: { 'var': 'ioNamespace', 'label': 'SIO namespace', 'description': 'Socket.IO namespace - unique to each uibuilder node instance', },\n        // ioPath: { 'var': 'ioPath', 'label': 'SIO path', 'description': '', }, // no longer needed in the modern client\n        socketError: { 'var': 'socketError', 'label': 'Socket error', 'description': 'If the Socket.IO connection has failed, says why', },\n\n        msgsSent: { 'var': 'msgsSent', 'label': '# msgs sent', 'description': 'How many standard messages have been sent to Node-RED?', },\n        msgsReceived: { 'var': 'msgsReceived', 'label': '# msgs received', 'description': 'How many standard messages have been received from Node-RED?', },\n        msgsSentCtrl: { 'var': 'msgsSentCtrl', 'label': '# control msgs sent', 'description': 'How many control messages have been sent to Node-RED?', },\n        msgsCtrlReceived: { 'var': 'msgsCtrlReceived', 'label': '# control msgs received', 'description': 'How many control messages have been received from Node-RED?', },\n        originator: { 'var': 'originator', 'label': 'Node Originator', 'description': 'If the last msg from Node-RED was from a `uib-sender` node, this will be its node id so that messasges can be returned to it', },\n        topic: { 'var': 'topic', 'label': 'Default topic', 'description': 'Optional default topic to be included in outgoing standard messages', },\n\n        started: { 'var': 'started', 'label': 'Has uibuilder client started?', 'description': 'Whether `uibuilder.start()` ran successfully. This should self-run and should not need to be run manually', },\n        version: { 'var': 'version', 'label': 'uibuilder client version', 'description': 'The version of the loaded uibuilder client library', },\n        serverTimeOffset: { 'var': 'serverTimeOffset', 'label': 'Server time offset (Hrs)', 'description': 'The number of hours difference between the Node-red server and the client', },\n    }\n\n    // Track ui observers (see uiWatch)\n    #uiObservers = {}\n\n    //#endregion\n\n    //#region public class vars\n\n    // TODO Move to proper getters\n    //#region ---- Externally read-only (via .get method) ---- //\n    // version - moved to _meta\n    /** Client ID set by uibuilder on connect */\n    clientId = ''\n    /** The collection of cookies provided by uibuilder */\n    cookies = {}\n    /** Copy of last control msg object received from sever */\n    ctrlMsg = {}\n    /** Is Socket.IO client connected to the server? */\n    ioConnected = false\n    // Is the browser tab containing this page visible or not?\n    isVisible = false\n    // Remember the last page (re)load/navigation type: navigate, reload, back_forward, prerender\n    lastNavType = ''\n    /** Last std msg received from Node-RED */\n    msg = {}\n    /** number of messages sent to server since page load */\n    msgsSent = 0\n    /** number of messages received from server since page load */\n    msgsReceived = 0\n    /** number of control messages sent to server since page load */\n    msgsSentCtrl = 0\n    /** number of control messages received from server since page load */\n    msgsCtrlReceived = 0\n    /** Is the client online or offline? */\n    online = navigator.onLine\n    /** last control msg object sent via uibuilder.send() @since v2.0.0-dev3 */\n    sentCtrlMsg = {}\n    /** last std msg object sent via uibuilder.send() */\n    sentMsg = {}\n    /** placeholder to track time offset from server, see fn socket.on(ioChannels.server ...) */\n    serverTimeOffset = null\n    /** placeholder for a socket error message */\n    socketError = null\n    // tab identifier from session storage\n    tabId = ''\n    // Actual name of current page (set in constructor)\n    pageName = null\n    // Is the DOMPurify library loaded? Updated in start()\n    purify = false\n    // Is the Markdown-IT library loaded? Updated in start()\n    markdown = false\n    // Current URL hash. Initial set is done from start->watchHashChanges via a set to make it watched\n    urlHash = location.hash\n    //#endregion ---- ---- ---- ---- //\n\n    // TODO Move to proper getters/setters\n    //#region ---- Externally Writable (via .set method, read via .get method) ---- //\n    /** Default originator node id - empty string by default\n     * @type {string}\n     */\n    originator = ''\n    /** Default topic - used by send if set and no topic provided\n     * @type {(string|undefined)}\n     */\n    topic = undefined\n    //#endregion ---- ---- ---- ---- //\n\n    //#region ---- These are unlikely to be needed externally: ----\n    autoSendReady = true\n    httpNodeRoot = '' // Node-RED setting (via cookie)\n    ioNamespace = ''\n    ioPath = ''\n    retryFactor = 1.5       // starting delay factor for subsequent reconnect attempts\n    retryMs = 2000          // starting retry ms period for manual socket reconnections workaround\n    storePrefix = 'uib_'    // Prefix for all uib-related localStorage\n    started = false\n    socketOptions = {\n        path: this.ioPath,\n        transports: ['polling', 'websocket'],\n        auth: {\n            clientVersion: version,\n            clientId: this.clientId,\n            pathName: window.location.pathname,\n            urlParams: Object.fromEntries(new URLSearchParams(location.search)),\n            pageName: undefined,\n            tabId: undefined,\n            lastNavType: undefined,\n        },\n        transportOptions: {\n            // Can only set headers when polling\n            polling: {\n                extraHeaders: {\n                    'x-clientid': `${Uib._meta.displayName}; ${Uib._meta.type}; ${Uib._meta.version}; ${this.clientId}`,\n                }\n            },\n        },\n    }\n    //#endregion -- not external --\n\n    //#endregion --- End of variables ---\n\n    //#region ------- Getters and Setters ------- //\n\n    // Change logging level dynamically (affects both console. and print.)\n    set logLevel(level) { logLevel = level; console.log('%c\u2757 info%c [logLevel]', `${LOG_STYLES.level} ${LOG_STYLES.info.css}`, `${LOG_STYLES.head} ${LOG_STYLES.info.txtCss}`, `Set to ${level} (${LOG_STYLES.names[level]})`) /* changeLogLevel(level)*/ }\n    get logLevel() { return logLevel }\n\n    get meta() { return Uib._meta }\n\n    /** Function to set uibuilder properties to a new value - works on any property except _* or #*\n     * Also triggers any event listeners.\n     * Example: this.set('msg', {topic:'uibuilder', payload:42});\n     * @param {string} prop Any uibuilder property who's name does not start with a _ or #\n     * @param {*} val The set value of the property or a string declaring that a protected property cannot be changed\n     * @param {boolean} [store] If true, the variable is also saved to the browser localStorage if possible\n     * @param {boolean} [autoload] If true & store is true, on load, uib will try to restore the value from the store automatically\n     * @returns {*} Input value\n     */\n    set(prop, val, store = false, autoload = false) {\n        // Check for excluded properties - we don't want people to set these\n        // if (this.#excludedSet.indexOf(prop) !== -1) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:set', `Cannot use set() on protected property \"${prop}\"`)()\n            return `Cannot use set() on protected property \"${prop}\"`\n        }\n\n        // We must add the var to the uibuilder object\n        this[prop] = val\n\n        // Keep track of all managed variables\n        this.#managedVars[prop] = prop\n\n        // If requested, save to store\n        if (store === true) this.setStore(prop, val, autoload)\n\n        log('trace', 'Uib:set', `prop set - prop: ${prop}, val: `, val, ` store: ${store}, autoload: ${autoload}`)()\n\n        // Trigger this prop's event callbacks (listeners which are set by this.onChange)\n        // this.emit(prop, val)\n\n        // trigger an event on the prop name, pass both the name and value to the event details\n        this._dispatchCustomEvent('uibuilder:propertyChanged', { 'prop': prop, 'value': val, 'store': store, 'autoload': autoload })\n\n        return val\n    }\n\n    /** Function to get the value of a uibuilder property\n     * Example: uibuilder.get('msg')\n     * @param {string} prop The name of the property to get as long as it does not start with a _ or #\n     * @returns {*|undefined} The current value of the property\n     */\n    get(prop) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:get', `Cannot use get() on protected property \"${prop}\"`)()\n            return\n        }\n        if (prop === 'version') return Uib._meta.version\n        if (prop === 'msgsCtrl') return this.msgsCtrlReceived\n        if (prop === 'reconnections') return this.connectedNum\n        if (this[prop] === undefined) {\n            log('warn', 'Uib:get', `get() - property \"${prop}\" is undefined`)()\n        }\n        return this[prop]\n    }\n\n    /** Write to localStorage if possible. console error output if can't write\n     * Also uses this.storePrefix\n     * @example\n     *   uibuilder.setStore('fred', 42)\n     *   console.log(uibuilder.getStore('fred'))\n     * @param {string} id localStorage var name to be used (prefixed with 'uib_')\n     * @param {*} value value to write to localstore\n     * @param {boolean} [autoload] If true, on load, uib will try to restore the value from the store\n     * @returns {boolean} True if succeeded else false\n     */\n    setStore(id, value, autoload = false) {\n        let autoVars = {}\n        if (autoload === true) {\n            try {\n                autoVars = this.getStore('_uibAutoloadVars') || {}\n            } catch (e) {}\n        }\n        if (typeof value === 'object') {\n            try {\n                value = JSON.stringify(value)\n            } catch (e) {\n                log('error', 'Uib:setStore', 'Cannot stringify object, not storing. ', e)()\n                return false\n            }\n        }\n        try {\n            localStorage.setItem(this.storePrefix + id, value)\n            if (autoload) {\n                autoVars[id] = id\n                try {\n                    localStorage.setItem(this.storePrefix + '_uibAutoloadVars', JSON.stringify(autoVars))\n                } catch (e) {\n                    log('error', 'Uib:setStore', 'Cannot save autoload list. ', e)()\n                }\n            }\n            this._dispatchCustomEvent('uibuilder:propertyStored', { 'prop': id, 'value': value, 'autoload': autoload })\n            return true\n        } catch (e) {\n            log('error', 'Uib:setStore', 'Cannot write to localStorage. ', e)()\n            return false\n        }\n    } // --- end of setStore --- //\n\n    /** Attempt to get and re-hydrate a key value from localStorage\n     * Note that all uib storage is automatically prefixed using this.storePrefix\n     * @param {*} id The key of the value to attempt to retrieve\n     * @returns {*|null|undefined} The re-hydrated value of the key or null if key not found, undefined on error\n     */\n    getStore(id) {\n        try {\n            // @ts-ignore\n            return JSON.parse(localStorage.getItem(this.storePrefix + id))\n        } catch (e) { }\n        try {\n            return localStorage.getItem(this.storePrefix + id)\n        } catch (e) {\n            return undefined\n        }\n    }\n\n    /** Remove a given id from the uib keys in localStorage\n     * @param {*} id The key to remove\n     */\n    removeStore(id) {\n        try {\n            localStorage.removeItem(this.storePrefix + id)\n        } catch (e) { }\n    }\n\n    /** Returns a list of uibuilder properties (variables) that can be watched with onChange\n     * @returns {{[key: string]: string}} List of uibuilder managed variables\n     */\n    getManagedVarList() {\n        return this.#managedVars\n    }\n\n    getWatchedVars() {\n        return Object.keys(this.#propChangeCallbacks)\n    }\n\n    //#endregion ------- -------- ------- //\n\n    //#region ------- Our own event handling system ---------- //\n\n    // TODO Add option to send event details back to Node-RED as uib ctrl msg\n    /** Standard fn to create a custom event with details & dispatch it\n     * @param {string} title The event name\n     * @param {*} details Any details to pass to event output\n     */\n    _dispatchCustomEvent(title, details) {\n        const event = new CustomEvent(title, { detail: details })\n        document.dispatchEvent(event)\n    }\n\n    // See the this.#propChangeCallbacks & msgRecvdByTopicCallbacks private vars\n\n    /** Register on-change event listeners for uibuilder tracked properties\n     * Make it possible to register a function that will be run when the property changes.\n     * Note that you can create listeners for non-existant properties\n     * @example: uibuilder.onChange('msg', (msg) => { console.log('uibuilder.msg changed! It is now: ', msg) })\n     *\n     * @param {string} prop The property of uibuilder that we want to monitor\n     * @param {Function} callback The function that will run when the property changes, parameter is the new value of the property after change\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelChange if you need to remove a listener\n     */\n    onChange(prop, callback) {\n        // Note: Property does not have to exist yet\n\n        // console.debug(`[Uib:onchange] pushing new callback (event listener) for property: ${prop}`)\n\n        // Create a new array or add to the array of callback functions for the property in the events object\n        // if (this.#events[prop]) {\n        //     this.#events[prop].push(callback)\n        // } else {\n        //     this.#events[prop] = [callback]\n        // }\n\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#propChangeCallbacks[prop]) this.#propChangeCallbacks[prop] = { _nextRef: 1 }\n        else this.#propChangeCallbacks[prop]._nextRef++\n\n        const nextCbRef = this.#propChangeCallbacks[prop]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const propChangeCallback = this.#propChangeCallbacks[prop][nextCbRef] = function propChangeCallback(e) {\n            // If the prop name matches the 1st arg in the onChange fn:\n            if (prop === e.detail.prop) {\n                const value = e.detail.value\n                // console.warn('[Uib:onChange:evt] uibuilder:propertyChanged. ', e.detail)\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(value, value)\n            }\n        }\n\n        document.addEventListener('uibuilder:propertyChanged', propChangeCallback)\n\n        return nextCbRef\n    } // ---- End of onChange() ---- //\n\n    cancelChange(prop, cbRef) {\n        document.removeEventListener('uibuilder:propertyChanged', this.#propChangeCallbacks[prop][cbRef])\n        delete this.#propChangeCallbacks[prop][cbRef]\n        // this.#propChangeCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Register a change callback for a specific msg.topic\n     * Similar to onChange but more convenient if needing to differentiate by msg.topic.\n     * @example: let otRef = uibuilder.onTopic('mytopic', function(){ console.log('Received a msg with msg.topic=`mytopic`. msg: ', this) })\n     * To cancel a change listener: uibuilder.cancelTopic('mytopic', otRef)\n     *\n     * @param {string} topic The msg.topic we want to listen for\n     * @param {Function} callback The function that will run when an appropriate msg is received. `this` inside the callback as well as the cb's single argument is the received msg.\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelTopic if you need to remove a listener\n     */\n    onTopic(topic, callback) {\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#msgRecvdByTopicCallbacks[topic]) this.#msgRecvdByTopicCallbacks[topic] = { _nextRef: 1 }\n        else this.#msgRecvdByTopicCallbacks[topic]._nextRef++\n\n        const nextCbRef = this.#msgRecvdByTopicCallbacks[topic]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const msgRecvdEvtCallback = this.#msgRecvdByTopicCallbacks[topic][nextCbRef] = function msgRecvdEvtCallback(e) {\n            const msg = e.detail\n            // console.log('[Uib:onTopic:evt] uibuilder:stdMsgReceived where topic matches. ', e.detail)\n            if (msg.topic === topic) {\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(msg, msg)\n            }\n        }\n\n        document.addEventListener('uibuilder:stdMsgReceived', msgRecvdEvtCallback)\n\n        return nextCbRef\n    }\n\n    cancelTopic(topic, cbRef) {\n        document.removeEventListener('uibuilder:stdMsgReceived', this.#msgRecvdByTopicCallbacks[topic][cbRef])\n        delete this.#msgRecvdByTopicCallbacks[topic][cbRef]\n        // this.#msgRecvdCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Trigger event listener for a given property\n     * Called when uibuilder.set is used\n     *\n     * @param {*} prop The property for which to run the callback functions\n     * arguments: Additional arguments contain the value to pass to the event callback (e.g. newValue)\n     */\n    // emit(prop) {\n    //     var evt = this.#events[prop]\n    //     if (!evt) {\n    //         return\n    //     }\n    //     var args = Array.prototype.slice.call(arguments, 1)\n    //     for (var i = 0; i < evt.length; i++) {\n    //         evt[i].apply(this, args)\n    //     }\n    //     log('trace', 'Uib:emit', `${evt.length} listeners run for prop ${prop} `)()\n    // }\n\n    /** Forcibly removes all event listeners from the events array\n     * Use if you need to re-initialise the environment\n     */\n    // clearEventListeners() {\n    //     this.#events = []\n    // } // ---- End of clearEventListeners() ---- //\n\n    /** Clear a single property event listeners\n     * @param {string} prop The property of uibuilder for which we want to clear the event listener\n     */\n    // clearListener(prop) {\n    //     if (this.#events[prop]) delete this.#events[prop]\n    // }\n\n    //#endregion ---------- End of event handling system ---------- //\n\n    //#region ------- General Utility Functions -------- //\n\n    /** Check supplied msg from server for a timestamp - if received, work out & store difference to browser time\n     * @param {object} receivedMsg A message object recieved from Node-RED\n     * @returns {void} Updates self.serverTimeOffset if different to previous value\n     */\n    _checkTimestamp(receivedMsg) {\n        if (Object.prototype.hasOwnProperty.call(receivedMsg, 'serverTimestamp')) {\n            const serverTimestamp = new Date(receivedMsg.serverTimestamp)\n            // @ts-ignore\n            const offset = Math.round(((new Date()) - serverTimestamp) / 3600000) // in ms / 3.6m to get hours\n            if (offset !== this.serverTimeOffset) {\n                log('trace', `Uib:checkTimestamp:${this._ioChannels.server} (server)`, `Offset changed to: ${offset} from: ${this.serverTimeOffset}`)()\n                this.set('serverTimeOffset', offset)\n            }\n        }\n    }\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {*} Selected HTML element or null\n     */\n    $(cssSelector) {\n        /** @type {*} Some kind of HTML element */\n        let el = document.querySelector(cssSelector)\n\n        if (!el) {\n            log(1, 'Uib:$', `No element found for CSS selector ${cssSelector}`)()\n            return null\n        }\n\n        if ( el.nodeName === 'TEMPLATE' ) {\n            el = el.content.firstElementChild\n            if (!el) {\n                log(0, 'Uib:$', `Template selected for CSS selector ${cssSelector} but it is empty`)()\n                return null\n            }\n        }\n\n        return el\n    }\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {*} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {Array} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$(cssSelector) {\n        return Array.from(document.querySelectorAll(cssSelector))\n    }\n\n    /** Set the default originator. Set to '' to ignore. Used with uib-sender.\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    setOriginator(originator = '') {\n        this.set('originator', originator)\n    } // ---- End of setOriginator ---- //\n\n    /** HTTP Ping/Keep-alive - makes a call back to uibuilder's ExpressJS server and receives a 204 response\n     * Can be used to keep sessions alive.\n     * @example\n     *   uibuilder.setPing(2000) // repeat every 2 sec. Re-issue with ping(0) to turn off repeat.\n     *   uibuilder.onChange('ping', function(data) {\n     *      console.log('pinger', data)\n     *   })\n     * @param {number} ms Repeat interval in ms\n     */\n    setPing(ms = 0) {\n        const oReq = new XMLHttpRequest()\n        oReq.addEventListener('load', () => {\n            const headers = (oReq.getAllResponseHeaders()).split('\\r\\n')\n            const elapsedTime = Number(new Date()) - Number((oReq.responseURL.split('='))[1])\n            this.set('ping', {\n                success: !!((oReq.status === 201) || (oReq.status === 204)), // true if one of the listed codes else false\n                status: oReq.status,\n                headers: headers,\n                url: oReq.responseURL,\n                elapsedTime: elapsedTime,\n            })\n        })\n\n        if (this.#pingInterval) {\n            clearInterval(this.#pingInterval)\n            this.#pingInterval = undefined\n        }\n\n        oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n        oReq.send()\n\n        if (ms > 0) {\n            this.#pingInterval = setInterval(() => {\n                oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n                oReq.send()\n            }, ms)\n        }\n    } // ---- End of ping ---- //\n\n    log() {\n        log(...arguments)()\n    }\n\n    /** Convert JSON to Syntax Highlighted HTML\n     * @param {object} json A JSON/JavaScript Object\n     * @returns {html} Object reformatted as highlighted HTML\n     */\n    syntaxHighlight(json) {\n        return syntaxHighlight(json)\n    } // --- End of syntaxHighlight --- //\n\n    /** Copies a uibuilder variable to the browser clipboard\n     * @param {string} varToCopy The name of the uibuilder variable to copy to the clipboard\n     */\n    copyToClipboard(varToCopy) {\n        let data = ''\n        try {\n            console.log(this.get(varToCopy), JSON.stringify(this.get(varToCopy)))\n            data = JSON.stringify(this.get(varToCopy))\n        } catch (e) {\n            log('error', 'copyToClipboard', `Could not copy \"${varToCopy}\" to clipboard.`, e.message)()\n        }\n        navigator.clipboard.writeText(data)\n    } // --- End of copyToClipboard --- //\n\n    /** Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.\n     * Requires IntersectionObserver (available to all mainstream browsers from early 2019)\n     * Automatically sends a msg back to Node-RED.\n     * Requires the element to already exist.\n     * @param {string} cssSelector Required. CSS Selector to examine for visibility\n     * @param {boolean} stop Optional. Default=false. If TRUE, stop the observer for this cssSelector\n     * @param {number} threshold Optional. Default=0.1. Between 0 and 1, the % visibility before trigger\n     */\n    elementIsVisible(cssSelector, stop = false, threshold = 0.1) {\n        if (!IntersectionObserver) return\n\n        // TODO Return a promise? - make return message optional?\n        // https://blog.bitsrc.io/angular-maximizing-performance-with-the-intersection-observer-api-23d81312f178#:~:text=Let%E2%80%99s%20define%20a%20function%20named%20isVisible%20and%20returns,resolve%20%28entry.isIntersecting%29%3B%20observer.disconnect%20%28%29%3B%20%7D%29%3B%20observer.observe%20%28element%29%3B%20%7D%29%3B\n\n        if (!this.#intersectionObserver) {\n            this.#intersectionObserver = new IntersectionObserver( (ioEntries) => {\n                const entries = []\n                // Stupid DOM API's, we have to explicitly loop through the data to be able to use it\n                ioEntries.forEach((entry) => {\n                    // Markup the element (data-isvisible)\n                    entry.target.dataset.isvisible = entry.isIntersecting\n                    // Each entry describes an intersection change for one observed\n                    entries.push({\n                        isIntersecting: entry.isIntersecting,\n                    })\n                })\n\n                // console.log('IntersectionObserver: Entries ', ioEntries, entries)\n                this.send({\n                    payload: entries[0].isIntersecting,\n                    isVisible: entries[0].isIntersecting,\n                    cssSelector,\n                    entries: entries,\n                })\n\n                log('info', 'uib:elementIsVisible', `Element \"${cssSelector}\" is now ${entries[0].isIntersecting ? 'more than 10%' : 'NOT (<10%)'} visible`)()\n            }, { threshold: threshold })\n        }\n\n        const el = document.querySelector(cssSelector)\n\n        if (el === null) {\n            log('error', 'uib:elementIsVisible', `Element \"${cssSelector}\" not found`)()\n            return\n        }\n\n        if (stop === true) {\n            this.#intersectionObserver.unobserve(el)\n            return\n        }\n\n        this.#intersectionObserver.observe(el)\n    } // --- End of elementIsVisible --- //\n\n    /** Does the chosen CSS Selector currently exist?\n     * Automatically sends a msg back to Node-RED unless turned off.\n     * @param {string} cssSelector Required. CSS Selector to examine for visibility\n     * @param {boolean} [msg] Optional, default=true. If true also sends a message back to Node-RED\n     * @returns {boolean} True if the element exists\n     */\n    elementExists(cssSelector, msg = true) {\n        const el = document.querySelector(cssSelector)\n\n        let exists = false\n        if (el !== null) exists = true\n\n        if (msg === true) {\n            this.send({\n                payload: exists,\n                info: `Element \"${cssSelector}\" ${exists ? 'exists' : 'does not exist'}`\n            })\n        }\n\n        return exists\n    } // --- End of elementExists --- //\n\n    /** Only keep the URL Hash & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return '#' + url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Set up an event listener to watch for hash changes\n     * and set the watchable urlHash variable\n     */\n    _watchHashChanges() {\n        this.set('urlHash', location.hash)\n        window.addEventListener('hashchange', (event) => {\n            this.set('urlHash', location.hash)\n            if (this.#sendUrlHash === true) {\n                this.send({ topic: 'hashChange', payload: location.hash, newHash: this.keepHashFromUrl(event.newURL), oldHash: this.keepHashFromUrl(event.oldURL) })\n            }\n        })\n    }\n\n    /** Returns true/false or a default value for truthy/falsy and other values\n     * @param {string|number|boolean|*} val The value to test\n     * @param {any} deflt Default value to use if the value is not truthy/falsy\n     * @returns {boolean|any} The truth! Or the default\n     */\n    truthy(val, deflt) {\n        let ret\n        if (['on', 'On', 'ON', 'true', 'True', 'TRUE', '1', true, 1].includes(val)) ret = true\n        else if (['off', 'Off', 'OFF', 'false', 'False', 'FALSE', '0', false, 0].includes(val)) ret = false\n        else ret = deflt\n        return ret\n    }\n\n    /** Turn on/off/toggle sending URL hash changes back to Node-RED\n     * @param {string|number|boolean|undefined} [toggle] Optional on/off/etc\n     * @returns {boolean} True if we will send a msg to Node-RED on a hash change\n     */\n    watchUrlHash(toggle) {\n        this.#sendUrlHash = this.truthy(toggle, this.#sendUrlHash !== true)\n        return this.#sendUrlHash\n    }\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- UI handlers --------- //\n\n    //#region -- Direct to _ui --\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        _ui.ui(json)\n    }\n\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        _ui.replaceSlot(el, component)\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        _ui.replaceSlotMarkdown(el, component)\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        return _ui.convertMarkdown(mdText)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        return _ui.sanitiseHTML(html)\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        _ui.loadScriptSrc(url)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        _ui.loadStyleSrc(url)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        _ui.loadScriptTxt(textFn)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        _ui.loadStyleTxt(textFn)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) {\n        _ui.showDialog(type, ui, msg)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        _ui.loadui(url)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        return _ui.uiGet(cssSelector, propName)\n    }\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     */\n    async include(url, uiOptions) {\n        _ui.include(url, uiOptions)\n    }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} component Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, component) {\n        _ui.uiEnhanceElement(el, component)\n    }\n\n    //#endregion -- direct to _ui --\n\n    /** * Show/hide a display card on the end of the visible HTML that will dynamically display the last incoming msg from Node-RED\n     * The card has the id `uib_last_msg`. Updates are done from a listener set up in the start function.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showMsg(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowMsg\n        this.#isShowMsg = showHide\n        let slot = 'Waiting for a message from Node-RED'\n\n        if (this.msg && Object.keys(this.msg).length > 0) {\n            slot = this.syntaxHighlight(this.msg)\n        }\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_last_msg_wrap',\n                ],\n            })\n        } else {\n            _ui._uiReplace({\n                components: [\n                    {\n                        type: 'div',\n                        id: 'uib_last_msg_wrap',\n                        parent: parent,\n                        attributes: {\n                            title: 'Last message from Node-RED',\n                        },\n                        components: [\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.copyToClipboard(\"msg\")',\n                                    class: 'compact',\n                                    style: 'right:3em;',\n                                },\n                                slot: '\uD83D\uDCCB',\n                            },\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.showMsg()',\n                                    class: 'compact',\n                                    style: 'right:.5em;',\n                                },\n                                slot: '\u26D4',\n                            },\n                            {\n                                type: 'pre',\n                                id: 'uib_last_msg',\n                                // parent: 'uib_last_msg_wrap',\n                                attributes: {\n                                    class: 'syntax-highlight',\n                                },\n                                slot: slot,\n                            },\n                        ],\n                    },\n                ],\n            })\n        }\n\n        return showHide\n    }\n\n    /** Show a browser notification if possible.\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * @example uibuilder.notify( 'My simple message to the user' )\n     * @example uibuilder.notify( {topic: 'My Title', payload: 'My simple message to the user'} )\n     * @example uibuilder.notify( {title: 'My Title', body: 'My simple message to the user'} )\n     * @example // If config.return = true, a promise is returned.\n     * // The resolved promise is only returned if the notification is clicked by the user.\n     * // Can be used to send the response back to Node-RED\n     * uibuilder.notify(notifyConfig).then( res => uibuilder.eventSend(res) )\n     * @ref https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config data or simple message string\n     * @returns {Promise<Event>|null} A promise that resolves to the click event or null\n     */\n    notify(config) {\n        if (config.return) return _ui.notification(config)\n\n        _ui.notification(config)\n            .then( res => { // eslint-disable-line promise/always-return\n                log('info', 'Uib:notification', 'Notification completed event', res)()\n                // if (config.return) return res\n            })\n            .catch( err => {\n                log('error', 'Uib:notification', 'Notification error event', err)()\n            })\n        return null\n    }\n\n    /** Show/hide a display card on the end of the visible HTML that will dynamically display the current status of the uibuilder client\n     * The card has the id `uib_status`.\n     * The display is updated by an event listener created in the class constructor.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showStatus(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowStatus\n        this.#isShowStatus = showHide\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_status',\n                ],\n            })\n            return showHide\n        }\n\n        const root = {\n            components: [\n                {\n                    type: 'div',\n                    id: 'uib_status',\n                    parent: parent,\n                    attributes: {\n                        title: 'Current status of the uibuilder client',\n                        class: 'text-smaller',\n                    },\n                    components: [\n                        {\n                            'type': 'table',\n                            'components': [\n                                {\n                                    'type': 'tbody',\n                                    'components': []\n                                }\n                            ]\n                        }\n                    ]\n                }\n            ]\n        }\n        const details = root.components[0].components[0].components[0].components\n\n        Object.values(this.#showStatus).forEach( entry => {\n            details.push({\n                'type': 'tr',\n                'attributes': {\n                    title: entry.description,\n                },\n                'components': [\n                    {\n                        'type': 'th',\n                        'slot': entry.label,\n                    },\n                    {\n                        'type': 'td',\n                        'attributes': {\n                            'data-varType': entry.var,\n                        },\n                        'slot': entry.var === 'version' ? Uib._meta.version : JSON.stringify(this[entry.var]),\n                    }\n                ],\n            })\n        })\n\n        _ui._uiReplace(root)\n\n        return showHide\n    }\n\n    /** Use the Mutation Observer browser API to watch for changes to a single element on the page.\n     * OMG! It is sooo hard to turn the data into something that successfully serialises so it can be sent back to Node-RED!\n     * NB: Each cssSelector creates a unique watcher. Sending the same selector overwrites the previous one.\n     * @param {string} cssSelector A CSS Selector that selects the element to watch for changes\n     * @param {boolean|\"toggle\"} [startStop] true=start watching the DOM, false=stop. Default='toggle'\n     * @param {boolean} [send] true=Send changes to Node-RED, false=Don't send. Default=true\n     * @param {boolean} [showLog] true=Output changes to log, false=stop. Default=true. Log level is 2 (Info)\n     * @returns {boolean} True if the watch is on, false otherwise\n     */\n    uiWatch(cssSelector, startStop = 'toggle', send = true, showLog = true) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.querySelector(cssSelector)\n        if (!targetNode) {\n            log('warn', 'uibuilder.module.js:uiWatch', `CSS Selector '${cssSelector}' not found.`)()\n            return false\n        }\n\n        if (startStop === 'toggle' || startStop === undefined || startStop === null) {\n            if (this.#uiObservers[cssSelector]) startStop = false\n            else startStop = true\n        }\n\n        // Need a ref to the Uib this\n        const that = this\n\n        if (startStop === true) {\n            // Create an observer instance\n            this.#uiObservers[cssSelector] = new MutationObserver( function( mutationList /* , observer */ ) {\n                const out = []\n\n                mutationList.forEach( mu => {\n                    // console.log({ mu })\n                    const oMu = {\n                        type: mu.type,\n                        oldValue: mu.oldValue !== null ? mu.oldValue : undefined,\n                    }\n\n                    if (mu.addedNodes.length > 0) {\n                        oMu.addedNodes = []\n                        mu.addedNodes.forEach( (an, i) => {\n                            oMu.addedNodes.push(_ui.nodeGet(mu.addedNodes[i]))\n                        })\n                    }\n\n                    if (mu.removedNodes.length > 0) {\n                        oMu.removedNodes = []\n                        mu.removedNodes.forEach( (an, i) => {\n                            oMu.removedNodes.push(_ui.nodeGet(mu.removedNodes[i]))\n                        })\n                    }\n\n                    if ( mu.type === 'attributes' ) {\n                        oMu.attributeName = mu.attributeName\n                        // @ts-ignore\n                        oMu.newValue = mu.target.attributes[mu.attributeName].value\n                    }\n\n                    out.push(oMu)\n                })\n\n                // Custom event\n                that._dispatchCustomEvent('uibuilder:domChange', out)\n                // Send a msg back to node-red\n                if (send === true) {\n                    that.send({\n                        _ui: {\n                            cssSelector: cssSelector,\n                            uiChanges: out\n                        },\n                        topic: that.topic || `DOM Changes for '${cssSelector}'`,\n                    })\n                }\n                // Log to info\n                if (showLog === true) {\n                    log('info', 'uibuilder.module.js:uiWatch', `DOM Changes for '${cssSelector}'`, { uiChanges: out }, { mutationList })()\n                }\n            } )\n\n            // Start observing the target node for configured mutations\n            this.#uiObservers[cssSelector].observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:uiWatch', `Started Watching DOM changes for '${cssSelector}'`)()\n        } else {\n            this.#uiObservers[cssSelector].disconnect()\n            delete this.#uiObservers[cssSelector]\n            log('trace', 'uibuilder.module.js:uiWatch', `Stopped Watching DOM changes for '${cssSelector}'`)()\n        }\n\n        return startStop\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- HTML cache and DOM watch --------- //\n\n    /** Clear the saved DOM from localStorage */\n    clearHtmlCache() {\n        this.removeStore('htmlCache')\n        log('trace', 'uibuilder.module.js:clearHtmlCache', 'HTML cache cleared')()\n    }\n\n    /** Restore the complete DOM (the whole web page) from browser localStorage if available */\n    restoreHtmlFromCache() {\n        // Is the html cached? If so, restore it\n        const htmlCache = this.getStore('htmlCache')\n        if (htmlCache) {\n            const targetNode = document.getElementsByTagName('html')[0]\n            // Restore the entire HTML\n            targetNode.innerHTML = htmlCache\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'Restored HTML from cache')()\n        } else {\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'No cache to restore')()\n        }\n    }\n\n    /** Save the current DOM state to browser localStorage.\n     * localStorage is persistent and so can be recovered even after a browser restart.\n     */\n    saveHtmlCache() {\n        // Save the updated entire HTML in localStorage\n        this.setStore('htmlCache', document.documentElement.innerHTML)\n    }\n\n    /** Use the Mutation Observer browser API to watch for and save changes to the HTML\n     * Once the observer is created, it will be reused.\n     * Sending true or undefined will turn on the observer, false turns it off.\n     * saveHtmlCache is called whenever anything changes in the dom. This allows\n     * users to call restoreHtmlFromCache() on page load if desired to completely reload\n     * to the last saved state.\n     * @param {boolean} startStop true=start watching the DOM, false=stop\n     */\n    watchDom(startStop) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.documentElement\n\n        // Need a ref to the Uib this\n        const that = this\n\n        // Create an observer instance\n        if (!this._htmlObserver) {\n            this._htmlObserver = new MutationObserver( function(/* mutationList, observer */) {\n                // We don't need to know the details - so kill off any outstanding mutation records\n                this.takeRecords()\n                // Save the updated entire HTML in localStorage\n                that.saveHtmlCache()\n            } )\n        }\n\n        if (startStop === true || startStop === undefined) {\n            // Start observing the target node for configured mutations\n            this._htmlObserver.observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:watchDom', 'Started Watching and saving DOM changes')()\n        } else {\n            this._htmlObserver.disconnect()\n            log('trace', 'uibuilder.module.js:watchDom', 'Stopped Watching and saving DOM changes')()\n        }\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- Message Handling (To/From Node-RED) -------- //\n\n    /** Internal send fn. Send a standard or control msg back to Node-RED via Socket.IO\n     * NR will generally expect the msg to contain a payload topic\n     * @param {object} msgToSend The msg object to send.\n     * @param {string} [channel=uiBuilderClient] The Socket.IO channel to use, must be in self.ioChannels or it will be ignored\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    _send(msgToSend, channel, originator = '') {\n        if (channel === null || channel === undefined) channel = this._ioChannels.client\n\n        // Make sure msgToSend is an object\n        if (channel === this._ioChannels.client) {\n            msgToSend = makeMeAnObject(msgToSend, 'payload')\n        } else if (channel === this._ioChannels.control) {\n            msgToSend = makeMeAnObject(msgToSend, 'uibuilderCtrl')\n            if (!Object.prototype.hasOwnProperty.call(msgToSend, 'uibuilderCtrl')) {\n                msgToSend.uibuilderCtrl = 'manual send'\n            }\n            // help remember where this came from as ctrl msgs can come from server or client\n            msgToSend.from = 'client'\n        }\n\n        /** since 2020-01-02 Added _socketId which should be the same as the _socketId on the server */\n        msgToSend._socketId = this._socket.id\n\n        //#region ---- Update socket.io metadata ---- //\n        // Session tab id\n        this.socketOptions.auth.tabId = this.tabId\n        // How was the page last loaded?\n        this.socketOptions.auth.lastNavType = this.lastNavType\n        // How many times has the client (re)connected since page load\n        this.socketOptions.auth.connectedNum = this.connectedNum\n        //#endregion ---- ---- ---- //\n\n        // Add the originator metadata if required\n        if (originator === '' && this.originator !== '') originator = this.originator\n        if (originator !== '') Object.assign(msgToSend, { '_uib': { 'originator': originator } })\n\n        // If the msg does not have a topic - see if we want to add one\n        if ( !Object.prototype.hasOwnProperty.call(msgToSend, 'topic') ) {\n            // From the default (`uibuilder.set('topic', 'some topic')`)\n            if (this.topic !== undefined && this.topic !== '') msgToSend.topic = this.topic\n            else {\n                // Did the last inbound msg have a topic?\n                if ( Object.prototype.hasOwnProperty.call(this, 'msg') && Object.prototype.hasOwnProperty.call(this.msg, 'topic') ) {\n                    msgToSend.topic = this.msg.topic\n                }\n            }\n        }\n\n        // If a standard send & _ui property exists, make sure to add _ui.from = 'client'\n        if (msgToSend._ui) msgToSend._ui.from = 'client'\n\n        // Track how many messages have been sent & last msg sent\n        let numMsgs\n        if (channel === this._ioChannels.client) {\n            this.set('sentMsg', msgToSend)\n            numMsgs = this.set('msgsSent', ++this.msgsSent)\n        } else if (channel === this._ioChannels.control) {\n            this.set('sentCtrlMsg', msgToSend)\n            numMsgs = this.set('msgsSentCtrl', ++this.msgsSentCtrl)\n        }\n        log('trace', 'Uib:_send', ` Channel '${channel}'. Sending msg #${numMsgs}`, msgToSend)()\n\n        this._socket.emit(channel, msgToSend)\n    } // --- End of Send Msg Fn --- //\n\n    /** Send a standard message to NR\n     * @example uibuilder.send({payload:'Hello'})\n     * @param {object} msg Message to send\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    send(msg, originator = '') {\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Send a control msg to NR\n     * @param {object} msg Message to send\n     */\n    sendCtrl(msg) {\n        this._send(msg, this._ioChannels.control)\n    }\n\n    /** Easily send a msg back to Node-RED on a DOM event\n     * @example In plain HTML/JavaScript\n     *    `<button id=\"button1\" name=\"button 1\" data-fred=\"jim\"></button>`\n     *    $('#button1').onclick = (evt) => {\n     *      uibuilder.eventSend(evt)\n     *    }\n     * @example\n     * In VueJS: `<b-button id=\"myButton1\" @click=\"doEvent\" data-something=\"hello\"></b-button>`\n     * In VueJS methods: `doEvent: uibuilder.eventSend,`\n     *\n     * All `data-` attributes will be passed back to Node-RED,\n     *    use them instead of arguments in the click function.\n     *    All target._ui custom properties are also passed back to Node-RED.\n     *\n     * @param {MouseEvent|any} domevent DOM Event object\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    eventSend(domevent, originator = '') { // eslint-disable-line sonarjs/cognitive-complexity\n        // @ts-ignore Handle case where vue messes up `this`\n        if ( this.$attrs ) {\n            log('error', 'Uib:eventSend', '`this` has been usurped by VueJS. Make sure that you wrap the call in a function: `doEvent: function (event) { uibuilder.eventSend(event) },`' )()\n            return\n        }\n        if (!domevent && !event) {\n            log('warn', 'Uib:eventSend', 'Neither the domevent nor the hidden event properties are set. You probably called this function directly rather than applying to an on click event.' )()\n            return\n        }\n        // Handle no argument, e.g. <button onClick=\"uibuilder.eventSend()\"> - event is a hidden variable when fn used in addEventListener\n        if (!domevent || !domevent.constructor) domevent = event\n\n        // The argument must be a DOM event\n        if ((!domevent.constructor.name.endsWith('Event')) || (!domevent.currentTarget)) {\n            log('warn', 'Uib:eventSend', `ARGUMENT NOT A DOM EVENT - use data attributes not function arguments to pass data. Arg Type: ${domevent.constructor.name}`, domevent)()\n            return\n        }\n\n        // Prevent default event action\n        domevent.preventDefault()\n\n        // The target element\n        const target = domevent.currentTarget\n\n        // Get target properties - only shows custom props not element default ones\n        const props = {}\n        Object.keys(target).forEach( key => {\n            if (key.startsWith('_')) return // Exclude private\n            props[key] = target[key]\n        })\n\n        // Attempt to get target attributs - can fail for certain target types\n        const ignoreAttribs = ['class', 'id', 'name']\n        let attribs\n        try {\n            attribs = Object.assign({},\n                ...Array.from(target.attributes,\n                    ( { name, value } ) => {\n                        if ( !ignoreAttribs.includes(name) ) {\n                            return ({ [name]: value })\n                        }\n                        return undefined\n                    }\n                )\n            )\n        } catch (e) {}\n\n        // If target embedded in a form, include the form data\n        let form\n        const frmVals = []\n        if ( target.form ) {\n            form = {}\n            form.valid = target.form.checkValidity()\n            Object.values(target.form).forEach( (frmEl, i) => {\n                const id = frmEl.id !== '' ? frmEl.id : (frmEl.name !== '' ? frmEl.name : `${i}-${frmEl.type}`)\n\n                // We must have both an element id (we may have forced one above) AND\n                // the element type MUST be not undefined - to allow for the extra properties added by frameworks such as Svelte\n                if (id !== '' && frmEl.type) {\n                    // Stupid HTML doesn't use value attrib for checkboxes. So override if value is set to default\n                    if ('checked' in frmEl && frmEl.value === 'on') frmEl.value = frmEl.checked.toString()\n\n                    frmVals.push( { key: id, val: frmEl.value } ) // simplified for addition to msg.payload\n\n                    form[id] = {\n                        'id': frmEl.id,\n                        'name': frmEl.name,\n                        'value': frmEl.value,\n                        'valid': frmEl.checkValidity(),\n                        'type': frmEl.type,\n                    }\n\n                    if (form[id].valid === false) {\n                        const v = frmEl.validity\n                        form[id].validity = {\n                            badInput: v.badInput === true ? v.badInput : undefined,\n                            customError: v.customError === true ? v.customError : undefined,\n                            patternMismatch: v.patternMismatch === true ? v.patternMismatch : undefined,\n                            rangeOverflow: v.rangeOverflow === true ? v.rangeOverflow : undefined,\n                            rangeUnderflow: v.rangeUnderflow === true ? v.rangeUnderflow : undefined,\n                            stepMismatch: v.stepMismatch === true ? v.stepMismatch : undefined,\n                            tooLong: v.tooLong === true ? v.tooLong : undefined,\n                            tooShort: v.tooShort === true ? v.tooShort : undefined,\n                            typeMismatch: v.typeMismatch === true ? v.typeMismatch : undefined,\n                            valueMissing: v.valueMissing === true ? v.valueMissing : undefined,\n                        }\n                    }\n\n                    if (frmEl.dataset) form[id].data = frmEl.dataset\n                }\n            })\n        }\n\n        // Check for CSS Classes\n        let classes\n        try {\n            classes = Array.from(target.classList)\n        } catch (e) {}\n\n        // Each `data-xxxx` attribute is added as a property\n        let payload = { ...target.dataset }\n\n        // Handle Notification events\n        let nprops\n        if ( Object.prototype.toString.call(target) === '[object Notification]') {\n            // Fixed payload for convenience\n            payload = `notification-${target.userAction}`\n            // Capture the notification properties\n            nprops = {\n                // userAction: target.userAction, // uib custom prop: click, close or error\n                actions: target.actions,\n                badge: target.badge,\n                body: target.body,\n                data: target.data,\n                dir: target.dir,\n                icon: target.icon,\n                image: target.image,\n                lang: target.lang,\n                renotify: target.renotify,\n                requireInteraction: target.requireInteraction,\n                silent: target.silent,\n                tag: target.tag,\n                timestamp: target.timestamp,\n                title: target.title,\n                vibrate: target.vibrate,\n            }\n        }\n        // console.log(Object.prototype.toString.call(target))\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            // - this may be an empty Object if no data attributes defined\n            payload: payload,\n\n            _ui: {\n                type: 'eventSend',\n                id: target.id !== '' ? target.id : undefined,\n                name: target.name !== '' ? target.name : undefined,\n                slotText: target.textContent ? target.textContent.substring(0, 255) : undefined,\n\n                form: form,\n                props: props,\n                attribs: attribs,\n                classes: classes,\n\n                notification: nprops,\n\n                event: domevent.type,\n                altKey: domevent.altKey,\n                ctrlKey: domevent.ctrlKey,\n                shiftKey: domevent.shiftKey,\n                metaKey: domevent.metaKey,\n\n                pointerType: domevent.pointerType,\n                nodeName: target.nodeName,\n\n                clientId: this.clientId,\n                pageName: this.pageName,\n                tabId: this.tabId,\n            }\n        }\n\n        if (frmVals.length > 0) {\n            frmVals.forEach( entry => {\n                msg.payload[entry.key] = entry.val\n            })\n        }\n\n        if (domevent.type === 'change') {\n            // Checkboxes don't have a value!!\n            msg._ui.newValue = msg.payload.value = 'checked' in target ? target.checked : domevent.target.value\n        }\n\n        log('trace', 'Uib:eventSend', 'Sending msg to Node-RED', msg)()\n        if (target.dataset && target.dataset.length === 0) log('warn', 'Uib:eventSend', 'No payload in msg. data-* attributes should be used.')()\n\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Easily send the entire DOM/HTML msg back to Node-RED\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     * @param {boolean} [send] If true (default) directly send response to Node-RED. Is false when calling from Node-RED as a command.\n     * @returns {string} The HTML as a string\n     */\n    htmlSend(originator = '', send = true) {\n        const out = `<!doctype html>\\n${document.documentElement.outerHTML}`\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            payload: out,\n            length: out.length,\n            topic: this.topic,\n        }\n\n        log('trace', 'Uib:htmlSend', 'Sending full HTML to Node-RED', msg)()\n\n        if (send === true) this._send(msg, this._ioChannels.client, originator)\n        return out\n    }\n\n    /** Process msg._uib.command - Remember to update #extCommands with new allowed commands\n     * @param {object} msg Msg from Node-RED containing a msg._uib object\n     */\n    _uibCommand(msg) {\n        const cmd = msg._uib.command\n        // Disallowed command request outputs error and ignores the msg (NB: Case must match)\n        if (!this.#extCommands.includes(cmd.trim())) {\n            log('error', 'Uib:_uibCommand', `Command '${cmd} is not allowed to be called externally`)()\n            return\n        }\n        const prop = msg._uib.prop\n        const value = msg._uib.value\n        let response, info\n\n        // Don't forget to update `docs/client-docs/control-from-node-red.md`\n        switch (cmd) {\n            case 'elementExists': {\n                response = this.elementExists(prop, false)\n                info = `Element \"${prop}\" ${response ? 'exists' : 'does not exist'}`\n                break\n            }\n\n            case 'get': {\n                response = this.get(prop)\n                break\n            }\n\n            case 'getManagedVarList': {\n                if (prop === 'full') response = this.getManagedVarList()\n                else response = Object.values(this.getManagedVarList())\n                break\n            }\n\n            case 'getWatchedVars': {\n                if (prop === 'full') response = this.getWatchedVars()\n                else response = Object.values(this.getWatchedVars())\n                break\n            }\n\n            case 'htmlSend': {\n                response = this.htmlSend('', false)\n                break\n            }\n\n            case 'include': {\n                // include is async\n                response = _ui.include(prop, value)\n                break\n            }\n\n            case 'set': {\n                let store = false\n                let autoload = false\n                if (msg._uib.options && msg._uib.options.store) {\n                    if (msg._uib.options.store === true) store = true\n                    if (msg._uib.options.autoload === true) autoload = true\n                }\n                response = this.set(prop, value, store, autoload)\n                break\n            }\n\n            case 'showMsg': {\n                response = this.showMsg(value, prop)\n                break\n            }\n\n            case 'showStatus': {\n                response = this.showStatus(value, prop)\n                break\n            }\n\n            case 'uiGet': {\n                response = _ui.uiGet(prop, value)\n                break\n            }\n\n            case 'uiWatch': {\n                response = this.uiWatch(prop)\n                break\n            }\n\n            case 'watchUrlHash': {\n                response = this.watchUrlHash(prop)\n                break\n            }\n\n            default: {\n                log('warning', 'Uib:_uibCommand', `Command '${cmd}' not yet implemented`)()\n                break\n            }\n        }\n\n        if (response === undefined) {\n            response = `'${prop}' is undefined`\n        }\n        if (Object(response).constructor === Promise) {\n            // response = `'${cmd} ${prop}' submitted. Cmd is async, no response available`\n            response\n                .then( (/** @type {any} */ data) => {\n                    msg.payload = msg._uib.response = data\n                    msg.info = msg._uib.info = info\n                    if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                    this.send(msg)\n                    return true\n                })\n                .catch( err => {\n                    log(0, 'Uib:_uibCommand', 'Error: ', err)()\n                })\n        } else {\n            msg.payload = msg._uib.response = response\n            msg.info = msg._uib.info = info\n            if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n            this.send(msg)\n        }\n\n    } // --- end of _uibCommand ---\n\n    /** Do we want to process something? Check pageName, clientId, tabId. Defaults to yes.\n     * @param {*} obj Either a msg._ui or msg._uib object to check\n     * @returns {boolean} True if we should process the inbound _ui/_uib msg, false if not.\n     */\n    _forThis(obj) {\n        let r = true\n\n        // Is this msg for this pageName?\n        if (obj.pageName && obj.pageName !== this.pageName) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this page')()\n            r = false\n        }\n\n        // Is this msg for this clientId?\n        if (obj.clientId && obj.clientId !== this.clientId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this clientId')()\n            r = false\n        }\n\n        // Is this msg for this tabId?\n        if (obj.tabId && obj.tabId !== this.tabId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this tabId')()\n            r = false\n        }\n\n        return r\n    }\n\n    // Handle received messages - Process some msgs internally, emit specific events on document that make it easy for coders to use\n    _msgRcvdEvents(msg) {\n        // Message received\n        this._dispatchCustomEvent('uibuilder:stdMsgReceived', msg)\n\n        // Topic\n        if ( msg.topic ) this._dispatchCustomEvent(`uibuilder:msg:topic:${msg.topic}`, msg)\n\n        // Handle msg._uib special requests\n        if (msg._uib) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._uib)) return\n\n            /** Process a client reload request from Node-RED - as the page is reloaded, everything else is ignored\n             * Note that msg._ui.reload is also actioned via the _ui processing below */\n            if (msg._uib.reload === true) {\n                log('trace', 'Uib:_msgRcvdEvents:_uib:reload', 'reloading')()\n                location.reload()\n                return\n            }\n\n            // Process msg._uib.command messages - allows Node-RED to run uibuilder FE functions\n            if (msg._uib.command) {\n                this._uibCommand(msg)\n                return\n            }\n\n            // Better to request via msg._ui - these are for backwards compatibility\n            if ( msg._uib.componentRef === 'globalNotification' ) {\n                _ui.showDialog('notify', msg._uib.options, msg)\n            }\n            if ( msg._uib.componentRef === 'globalAlert' ) {\n                _ui.showDialog('alert', msg._uib.options, msg)\n            }\n        }\n\n        // Handle msg._ui requests\n        if ( msg._ui ) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._ui)) return\n\n            log('trace', 'Uib:_msgRcvdEvents:_ui', 'Calling _uiManager')()\n            this._dispatchCustomEvent('uibuilder:msg:_ui', msg)\n            _ui._uiManager(msg)\n        }\n    } // --- end of _msgRcvdEvents ---\n\n    /** Callback handler for messages from Node-RED\n     * NOTE: `this` is the class here rather the `socket` as would be normal since we bind the correct `this` in the call.\n     *       Use this._socket if needing reference to the socket.\n     * @callback ioSetupFromServer Called from ioSetup/this._socket.on(this.#ioChannels.server, this.stdMsgFromServer.bind(this))\n     * @param {object} receivedMsg The msg object from Node-RED\n     * @this Uib\n     */\n    _stdMsgFromServer(receivedMsg) {\n\n        // Make sure that msg is an object & not null\n        receivedMsg = makeMeAnObject(receivedMsg, 'payload')\n\n        // Don't process if the inbound msg is not for us\n        if (receivedMsg._uib && !this._forThis(receivedMsg._uib)) return\n        if (receivedMsg._ui && !this._forThis(receivedMsg._ui)) return\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedMsg)\n\n        // Track how many messages have been received\n        this.set('msgsReceived', ++this.msgsReceived)\n\n        // Emit specific document events on msg receipt that make it easy for coders to use\n        this._msgRcvdEvents(receivedMsg)\n\n        if ( !('_ui' in receivedMsg && !('payload' in receivedMsg)) ) {\n            // Save the msg for further processing\n            this.set('msg', receivedMsg)\n        }\n\n        log('info', 'Uib:ioSetup:stdMsgFromServer', `Channel '${this._ioChannels.server}'. Received msg #${this.msgsReceived}.`, receivedMsg)()\n\n        // ! NOTE: Don't try to handle specialist messages here. See _msgRcvdEvents.\n\n    } // -- End of websocket receive DATA msg from Node-RED -- //\n\n    /** Handles original control msgs (not to be confused with \"new\" msg._uib controls)\n     * @param {*} receivedCtrlMsg The msg received on the socket.io control channel\n     */\n    _ctrlMsgFromServer(receivedCtrlMsg) {\n\n        // Make sure that msg is an object & not null\n        if (receivedCtrlMsg === null) {\n            receivedCtrlMsg = {}\n        } else if (typeof receivedCtrlMsg !== 'object') {\n            const msg = {}\n            msg['uibuilderCtrl:' + this._ioChannels.control] = receivedCtrlMsg\n            receivedCtrlMsg = msg\n        }\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedCtrlMsg)\n\n        this.set('ctrlMsg', receivedCtrlMsg)\n        this.set('msgsCtrlReceived', ++this.msgsCtrlReceived)\n\n        log('trace', 'Uib:ioSetup:_ctrlMsgFromServer', `Channel '${this._ioChannels.control}'. Received control msg #${this.msgsCtrlReceived}`, receivedCtrlMsg)()\n\n        /** Process control msg types */\n        switch (receivedCtrlMsg.uibuilderCtrl) {\n            // Node-RED is shutting down\n            case 'shutdown': {\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, '\u274C Received \"shutdown\" from server')()\n                this.set('serverShutdown', undefined)\n                break\n            }\n\n            /** We are connected to the server - 1st msg from server */\n            case 'client connect': {\n                log('trace', `Uib:ioSetup:${this._ioChannels.control}`, 'Received \"client connect\" from server')()\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, `\u2705 Server connected. Version: ${receivedCtrlMsg.version}\\nServer time: ${receivedCtrlMsg.serverTimestamp}, Sever time offset: ${this.serverTimeOffset} hours`)()\n\n                if ( !Uib._meta.version.startsWith(receivedCtrlMsg.version.split('-')[0]) ) {\n                    log('warn', `Uib:ioSetup:${this._ioChannels.control}`, `Server version (${receivedCtrlMsg.version}) not the same as the client version (${Uib._meta.version})`)()\n                }\n\n                if (this.autoSendReady === true) { // eslint-disable-line no-lonely-if\n                    log('trace', `Uib:ioSetup:${this._ioChannels.control}/client connect`, 'Auto-sending ready-for-content/replay msg to server')\n                    // @since 0.4.8c Add cacheControl property for use with node-red-contrib-infocache\n                    // @since 6.1.0 Don't bother, we use the \"client connect\" msg\n                    // this._send({\n                    //     'uibuilderCtrl': 'ready for content',\n                    //     'cacheControl': 'REPLAY',\n                    // }, this._ioChannels.control)\n                }\n\n                break\n            }\n\n            default: {\n                log('trace', `uibuilderfe:ioSetup:${this._ioChannels.control}`, `Received ${receivedCtrlMsg.uibuilderCtrl} from server`)\n                // Anything else to do for other control msgs?\n            }\n\n        } // ---- End of process control msg types ---- //\n\n    } // -- End of websocket receive CONTROL msg from Node-RED -- //\n\n    /** Send log text to uibuilder's beacon endpoint (works even if socket.io not connected)\n     * @param {string} txtToSend Text string to send\n     * @param {string|undefined} logLevel Log level to use. If not supplied, will default to debug\n     */\n    beaconLog(txtToSend, logLevel) {\n        if (!logLevel) logLevel = 'debug'\n        navigator.sendBeacon('./_clientLog', `${logLevel}::${txtToSend}`)\n    }\n\n    /** Send log info back to Node-RED over uibuilder's websocket control output (Port #2)\n     * -@param {...*} arguments All arguments passed to the function are added to the msg.payload\n     */\n    logToServer() {\n        this.sendCtrl({\n            uibuilderCtrl: 'client log message',\n            payload: arguments,\n            // \"version\":\"6.1.0-iife.min\",\n            _socketId: this._socket.id,\n            // \"ip\":\"::1\",\n            clientId: this.clientId,\n            tabId: this.tabId,\n            // \"url\":\"esp-test\",\n            pageName: this.pageName,\n            connections: this.connectedNum,\n            lastNavType: this.lastNavType,\n        })\n    }\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Socket.IO -------- //\n\n    /** Return the Socket.IO namespace\n     * The cookie method is the most reliable but this falls back to trying to work it\n     * out from the URL if cookies not available. That won't work if page is in a sub-folder.\n     * since 2017-10-21 Improve method to cope with more complex paths - thanks to Steve Rickus @shrickus\n     * since 2017-11-10 v1.0.1 Check cookie first then url. cookie works even if the path is more complex (e.g. sub-folder)\n     * since 2020-01-25 Removed httpRoot from namespace to prevent proxy induced errors\n     * @returns {string} Socket.IO namespace\n     */\n    _getIOnamespace() {\n\n        let ioNamespace\n\n        /** Try getting the namespace cookie. */\n        ioNamespace = this.cookies['uibuilder-namespace']\n\n        // if it wasn't available, try using the current url path\n        if (ioNamespace === undefined || ioNamespace === '') {\n            // split url path & eliminate any blank elements, and trailing or double slashes\n            const u = window.location.pathname.split('/')\n                .filter(function (t) { return t.trim() !== '' })\n\n            /** since v2.0.5 Extra check for 0 length, Issue #73. since 2017-11-06 If the last element of the path is an .html file name, remove it */\n            if (u.length > 0 && (u[u.length - 1].endsWith('.html'))) u.pop()\n\n            // Get the last part of the url path, this MUST match the namespace in uibuilder\n            ioNamespace = u.pop()\n\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via url path: ${ioNamespace}`)()\n        } else {\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via cookie: ${ioNamespace}`)()\n        }\n\n        this.url = ioNamespace\n        // Namespace HAS to start with a /\n        ioNamespace = '/' + ioNamespace\n\n        log('trace', 'uibuilder.module.js:getIOnamespace', `Final Socket.IO namespace: ${ioNamespace}`)()\n\n        return ioNamespace\n    } // --- End of set IO namespace --- //\n\n    /** Function used to check whether Socket.IO is connected to the server, reconnect if not (recursive)\n     * @param {number} [delay] Initial delay before checking (ms). Default=2000ms\n     * @param {number} [factor] Multiplication factor for subsequent checks (delay*factor). Default=1.5\n     * @param {number} [depth] Recursion depth\n     * @returns {boolean|undefined} Whether or not Socket.IO is connected to uibuilder in Node-RED\n     */\n    _checkConnect(delay, factor, depth = 1) {\n        if ( navigator.onLine === false ) return // Don't bother if we know we are offline\n\n        if (!delay) delay = this.retryMs\n        if (!factor) factor = this.retryFactor\n\n        log('trace', 'Uib:checkConnect', `Checking connection. Connected: ${this._socket.connected}. Timer: ${this.#timerid}. Depth: ${depth}. Delay: ${delay}. Factor: ${factor}`, this._socket)()\n\n        // If we are connected ...\n        if (this._socket.connected === true) {\n            // Clear the setTimeout\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this.set('ioConnected', true)\n            this.set('socketError', null)\n            return true\n        }\n\n        // ... we aren't connected so:\n        this.set('ioConnected', false)\n\n        // we only want one running at a time\n        if (this.#timerid) window.clearTimeout(this.#timerid)\n\n        // Create the new timer\n        this.#timerid = window.setTimeout(() => {\n            log('warn', 'Uib:checkConnect:setTimeout', `Socket.IO reconnection attempt. Current delay: ${delay}. Depth: ${depth}`)()\n\n            // this is necessary sometimes when the socket fails to connect on startup\n            this._socket.close()\n\n            // Try to reconnect\n            this._socket.connect()\n\n            // don't need to check whether we have connected as the timer will have been cleared if we have\n            this.#timerid = null\n\n            // @ts-ignore Create new timer for next time round with extended delay\n            this._checkConnect(delay * factor, factor, depth++)\n        }, delay)\n\n        return false\n    } // --- End of checkConnect Fn--- //\n\n    // See message handling section for msg receipt handlers\n\n    /** Called by _ioSetup when Socket.IO connects to Node-RED */\n    _onConnect() {\n        this.set('connectedNum', this.connectedNum++)\n        // How many times has the client (re)connected since page load\n        this.socketOptions.auth.connectedNum = this.connectedNum\n        // How was the page last loaded?\n        this.socketOptions.auth.lastNavType = this.lastNavType\n        // Session tab id\n        this.socketOptions.auth.tabId = this.tabId\n        this.socketOptions.auth.more = this.tabId\n\n        log('info', 'Uib:ioSetup', `\u2705 SOCKET CONNECTED. Connection count: ${this.connectedNum}, Is a Recovery?: ${this._socket.recovered}. \\nNamespace: ${this.ioNamespace}`)()\n        this._dispatchCustomEvent('uibuilder:socket:connected', { 'numConnections': this.connectedNum, 'isRecovery': this._socket.recovered })\n\n        this._checkConnect() // resets any reconnection timers & sets connected flag\n    }\n\n    /** Called by _ioSetup when Socket.IO disconnects from Node-RED\n     * @param {string} reason Disconnection title\n     */\n    _onDisconnect(reason) {\n        // reason === 'io server disconnect' - redeploy of Node instance\n        // reason === 'transport close' - Node-RED terminating\n        // reason === 'ping timeout' - didn't receive a pong response?\n        log('info', 'Uib:ioSetup:socket-disconnect', `\u26D4 Socket Disconnected. Reason: ${reason}`)()\n\n        this._dispatchCustomEvent('uibuilder:socket:disconnected', reason)\n\n        /** A workaround for SIO's failure to reconnect after a disconnection */\n        this._checkConnect()\n    }\n\n    /** Setup Socket.io\n     * since v2.0.0-beta2 Moved to a function and called by the user (uibuilder.start()) so that namespace & path can be passed manually if needed\n     * @returns {boolean} Attaches socket.io manager to self._socket and updates self.ioNamespace & self.ioPath as needed\n     */\n    _ioSetup() {\n\n        // Just a notification, actual load is done outside the class (see start of file)\n        if (io === undefined) {\n            log('error', 'Uib:ioSetup', 'Socket.IO client not loaded, Node-RED comms will not work')()\n            return false\n        }\n\n        // If socket is already set up, close it and remove all of the listeners\n        if (this._socket) {\n            log('trace', 'Uib:ioSetup', 'Removing listeners in preparation for redoing Socket.IO connections')()\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this._socket.close()\n            this._socket.offAny()\n            this._socket = undefined\n            this.set('ioConnected', false)\n        }\n\n        // Update the URL path to make sure we have the right one\n        this.socketOptions.path = this.ioPath\n\n        //#region --- custom meta-data ---\n        // Add the pageName\n        this.socketOptions.auth.pageName = this.pageName\n        // Add stable client id (static unless browser closed)\n        this.socketOptions.auth.clientId = this.clientId\n        this.socketOptions.transportOptions.polling.extraHeaders['x-clientid'] = `${Uib._meta.displayName}; ${Uib._meta.type}; ${Uib._meta.version}; ${this.clientId}`\n        // Session tab id\n        this.socketOptions.auth.tabId = this.tabId\n        // How was the page last loaded?\n        this.socketOptions.auth.lastNavType = this.lastNavType\n        // How many times has the client (re)connected since page load\n        this.socketOptions.auth.connectedNum = this.connectedNum\n        //#endregion --- ---- ---\n\n        // Create the socket - make sure client uses Socket.IO version from the uibuilder module (using path)\n        log('trace', 'Uib:ioSetup', `About to create IO object. Transports: [${this.socketOptions.transports.join(', ')}]`)()\n        this._socket = io(this.ioNamespace, this.socketOptions)\n\n        /** When the socket is connected - set ioConnected flag and reset connect timer  */\n        this._socket.on('connect', this._onConnect.bind(this))\n\n        // RECEIVE a STANDARD, non-control msg from Node-RED server\n        this._socket.on(this._ioChannels.server, this._stdMsgFromServer.bind(this))\n\n        // RECEIVE a CONTROL msg from Node-RED server - see also sendCtrl()\n        this._socket.on(this._ioChannels.control, this._ctrlMsgFromServer.bind(this))\n\n        // When the socket is disconnected ..............\n        this._socket.on('disconnect', this._onDisconnect.bind(this))\n\n        // Socket.io connection error - probably the wrong ioPath - or client is offline\n        this._socket.on('connect_error', (err) => {\n            if ( navigator.onLine === false ) return // Don't bother with an error if we know we are offline\n            log('error', 'Uib:ioSetup:connect_error', `\u274C Socket.IO Connect Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket connect error processing ---\n\n        // Socket.io error - from the server (socket.use middleware triggered an error response)\n        this._socket.on('error', (err) => {\n            log('error', 'Uib:ioSetup:error', `\u274C Socket.IO Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket error processing ---\n\n        // Ensure we are connected, retry if not\n        this._checkConnect()\n\n        return true\n\n        /* We really don't need these, just for interest\n            self._socket.io.on('packet', function onPacket(data){\n                // we get one of these for each REAL msg (not ping/pong)\n                console.debug('PACKET', data)\n            })\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n                //console.dir(self._socket)\n            }) // --- End of socket pong processing ---\n            self._socket.io.on('packet', function(data){\n                // We get one of these for actual messages, not ping/pong\n                console.debug('PACKET', data)\n            })\n            self._socket.on('connect_timeout', function(timeout) {\n                console.debug('SOCKET CONNECT TIMEOUT - Namespace: ' + ioNamespace + ', Timeout: ' + timeout)\n            }) // --- End of socket connect timeout processing ---\n            self._socket.on('reconnect', function(attemptNum) {\n                console.debug('SOCKET RECONNECTED - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect processing ---\n            self._socket.on('reconnect_attempt', function(attemptNum) {\n                console.debug('SOCKET RECONNECT ATTEMPT - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect_attempt processing ---\n            self._socket.on('reconnecting', function(attemptNum) {\n                console.debug('SOCKET RECONNECTING - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnecting processing ---\n            self._socket.on('reconnect_error', function(err) {\n                console.debug('SOCKET RECONNECT ERROR - Namespace: ' + ioNamespace + ', Reason: ' + err.message)\n                //console.dir(err)\n            }) // --- End of socket reconnect_error processing ---\n            self._socket.on('reconnect_failed', function() {\n                console.debug('SOCKET RECONNECT FAILED - Namespace: ' + ioNamespace)\n            }) // --- End of socket reconnect_failed processing ---\n            self._socket.on('ping', function() {\n                console.debug('SOCKET PING')\n            }) // --- End of socket ping processing ---\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n            }) // --- End of socket pong processing ---\n            */\n    } // ---- End of ioSetup ---- //\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Class construction & startup method -------- //\n\n    constructor() {\n        log('trace', 'Uib:constructor', 'Starting')()\n\n        // Track whether the client is online or offline\n        window.addEventListener('offline', (e) => {\n            this.set('online', false)\n            this.set('ioConnected', false)\n            log('warn', 'Browser', 'DISCONNECTED from network')()\n        })\n        window.addEventListener('online', (e) => {\n            this.set('online', true)\n            log('warn', 'Browser', 'Reconnected to network')()\n            this._checkConnect()\n        })\n\n        document.cookie.split(';').forEach((c) => {\n            const splitC = c.split('=')\n            this.cookies[splitC[0].trim()] = splitC[1]\n        })\n\n        /** Client ID set by uibuilder - lasts until browser profile is closed, applies to all tabs */\n        this.set('clientId', this.cookies['uibuilder-client-id'])\n        log('trace', 'Uib:constructor', 'Client ID: ', this.clientId)()\n\n        /** Tab ID - lasts while the tab is open (even if reloaded)\n         * WARNING: Duplicating a tab retains the same tabId\n         */\n        this.set('tabId', window.sessionStorage.getItem('tabId'))\n        if (!this.tabId) {\n            this.set('tabId', `t${Math.floor(Math.random() * 1000000)}`)\n            window.sessionStorage.setItem('tabId', this.tabId)\n        }\n\n        // document.addEventListener('pagehide', (event) => {\n        //     // console.log(`pagehide. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pagehide. From Cache?: ${event.persisted}`)\n        // })\n        // document.addEventListener('pageshow', (event) => {\n        //     // console.log(`pageshow. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pageshow. From Cache?: ${event.persisted}`)\n        // })\n        document.addEventListener('load', () => {\n            this.set('isVisible', true)\n        })\n        document.addEventListener('visibilitychange', () => {\n            // hidden=unload, minimise. visible=un-minimise (not fired on load)\n            this.set('isVisible', document.visibilityState === 'visible')\n            this.sendCtrl({ uibuilderCtrl: 'visibility', isVisible: this.isVisible })\n            // navigator.userActivation is experimental Chromium only\n            // console.log('visibilitychange', ':', `Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n            // navigator.sendBeacon('./_clientLog', `${(new Date()).toISOString()} Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n        })\n\n        // Set a listener to update showStatus table if it is active\n        document.addEventListener('uibuilder:propertyChanged', (event) => {\n            if (!this.#isShowStatus) return\n\n            // @ts-ignore\n            if (event.detail.prop in this.#showStatus) {\n                // @ts-ignore\n                document.querySelector(`td[data-vartype=\"${event.detail.prop}\"]`).innerText = JSON.stringify(event.detail.value)\n            }\n        })\n\n        this.set('ioNamespace', this._getIOnamespace())\n\n        //#region - Try to make sure client uses Socket.IO client version from the uibuilder module (using cookie or path) @since v2.0.0 2019-02-24 allows for httpNodeRoot\n\n        /** httpNodeRoot (to set path) */\n        if ('uibuilder-webRoot' in this.cookies) {\n            this.set('httpNodeRoot', this.cookies['uibuilder-webRoot'])\n            log('trace', 'Uib:constructor', `httpNodeRoot set by cookie to \"${this.httpNodeRoot}\"`)()\n        } else {\n            // split current url path, eliminate any blank elements and trailing or double slashes\n            const fullPath = window.location.pathname.split('/').filter(function (t) { return t.trim() !== '' })\n            /** handle url includes file name - @since v2.0.5 Extra check for 0 length, Issue #73. */\n            if (fullPath.length > 0 && fullPath[fullPath.length - 1].endsWith('.html')) fullPath.pop()\n            fullPath.pop() // gives the last path section of the url\n            this.set('httpNodeRoot', `/${fullPath.join('/')}`)\n            log('trace', '[Uib:constructor]', `httpNodeRoot set by URL parsing to \"${this.httpNodeRoot}\". NOTE: This may fail for pages in sub-folders.`)()\n        }\n        this.set('ioPath', urlJoin(this.httpNodeRoot, Uib._meta.displayName, 'vendor', 'socket.io'))\n        log('trace', 'Uib:constructor', `ioPath: \"${this.ioPath}\"`)()\n\n        //#endregion\n\n        // Work out pageName\n        this.set('pageName', window.location.pathname.replace(`${this.ioNamespace}/`, ''))\n        if ( this.pageName.endsWith('/') ) this.set('pageName', `${this.pageName}index.html`)\n        if ( this.pageName === '' ) this.set('pageName', 'index.html')\n\n        // Attempt to restore autoload variables\n        try {\n            const autoloadVars = this.getStore('_uibAutoloadVars')\n            if (Object.keys(autoloadVars).length > 0) {\n                Object.keys(autoloadVars).forEach( (id) => {\n                    this.set(id, this.getStore(id))\n                })\n            }\n        } catch (e) {}\n\n        this._dispatchCustomEvent('uibuilder:constructorComplete')\n\n        log('trace', 'Uib:constructor', 'Ending')()\n    }\n\n    /** Start up Socket.IO comms and listeners\n     * This has to be done separately because if running from a web page in a sub-folder of src/dist, uibuilder cannot\n     * necessarily work out the correct ioPath to use.\n     * Also, if cookies aren't permitted in the browser, both ioPath and ioNamespace may need to be specified.\n     * @param {object} [options] The start options object.\n     * @returns {void}\n     */\n    start(options) {\n        log('trace', 'Uib:start', 'Starting')()\n\n        // Cancel the msg event handler if already present\n        if ( this.#MsgHandler ) this.cancelChange('msg', this.#MsgHandler)\n\n        if (this.started === true) {\n            log('info', 'Uib:start', 'Start function already called. Resetting Socket.IO and msg handler.')()\n        }\n\n        log('log', 'Uib:start', 'Cookies: ', this.cookies, `\\nClient ID: ${this.clientId}`)()\n        log('trace', 'Uib:start', 'ioNamespace: ', this.ioNamespace, `\\nioPath: ${this.ioPath}`)()\n\n        // Handle options\n        if (options) {\n            if (options.ioNamespace !== undefined && options.ioNamespace !== null && options.ioNamespace !== '') this.set('ioNamespace', options.ioNamespace)\n            if (options.ioPath !== undefined && options.ioPath !== null && options.ioPath !== '') this.set('ioPath', options.ioPath)\n            // See below for handling of options.loadStylesheet\n        }\n\n        // Do we need to load styles?\n        if ( document.styleSheets.length >= 1 || (document.styleSheets.length === 1 && document.styleSheets[0].cssRules.length === 0) ) {\n            log('info', 'Uib:start', 'Styles already loaded so not loading uibuilder default styles.')()\n        } else {\n            if (options && options.loadStylesheet === false) log('info', 'Uib:start', 'No styles loaded & options.loadStylesheet === false.')()\n            else {\n                log('info', 'Uib:start', 'No styles loaded, loading uibuilder default styles.')()\n                this.loadStyleSrc(`${this.httpNodeRoot}/uibuilder/uib-brand.min.css`)\n            }\n        }\n\n        /** Handle specialist messages like reload and _ui -> Moved to _msgRcvdEvents */\n\n        // Track last browser navigation type: navigate, reload, back_forward, prerender\n        const [entry] = performance.getEntriesByType('navigation')\n        // @ts-ignore\n        this.set('lastNavType', entry.type)\n\n        // Start up (or restart) Socket.IO connections and listeners. Returns false if io not found\n        this.set('started', this._ioSetup())\n\n        if ( this.started === true ) {\n            log('trace', 'Uib:start', 'Start completed. Socket.IO client library loaded.')()\n        } else {\n            log('error', 'Uib:start', 'Start completed. ERROR: Socket.IO client library NOT LOADED.')()\n        }\n\n        // Watch for URL hash changes in case using a front-end router. Updates watched var `urlHash` and socket.io `auth.urlHash`\n        this._watchHashChanges()\n\n        // Check if Vue is present (used for dynamic UI processing)\n        if (window['Vue']) {\n            this.set('isVue', true)\n            try {\n                this.set('vueVersion', window['Vue'].version)\n            } catch (e) { }\n            log('trace', 'Uib:start', `VueJS is loaded. Version: ${this.vueVersion}`)()\n        } else {\n            log('trace', 'Uib:start', 'VueJS is not loaded.')()\n        }\n\n        // Check if DOMPurify library is loaded\n        if (window['DOMPurify']) {\n            this.set('purify', true)\n            log('trace', 'Uib:start', 'DOMPurify is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'DOMPurify is not loaded.')()\n        }\n        // Check if Markdown-IT library is loaded\n        if (window['markdownit']) {\n            this.set('markdown', true)\n            log('trace', 'Uib:start', 'Markdown-IT is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'Markdown-IT is not loaded.')()\n        }\n\n        // if (window['DOMPurify']) {\n        //     this.set('purify', true)\n        //     log('trace', 'Uib:start', 'DOMPurify is loaded.')\n        // } else {\n        //     log('trace', 'Uib:start', 'DOMPurify is not loaded.')\n        // }\n\n        // Set up msg listener for the optional showMsg\n        this.onChange('msg', (msg) => {\n            if (this.#isShowMsg === true) {\n                const eMsg = document.getElementById('uib_last_msg')\n                if (eMsg) eMsg.innerHTML = this.syntaxHighlight(msg)\n            }\n        })\n\n        this._dispatchCustomEvent('uibuilder:startComplete')\n    }\n\n    //#endregion -------- ------------ -------- //\n} // ==== End of Class Uib ====\n\n//#region --- Wrap up - get things started ---\n\n// Create an instance (we will only ever want one)\nconst uibuilder = new Uib()\n\n// Assign reference to the instance to the global `window` object\n// Only useful if loading via <script> tag - prefer loading via `import uibuilder from ...`\nif (!window['uibuilder']) {\n    window['uibuilder'] = uibuilder\n} else {\n    log('error', 'uibuilder.module.js', '`uibuilder` already assigned to window. Have you tried to load it more than once?')\n}\nif (!window['uib']) {\n    window['uib'] = uibuilder\n} else {\n    log('warn', 'uibuilder.module.js', '`uib` shortcut already assigned to window.')\n}\n\n// Assign `$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$`.\nif (!window['$']) {\n    /** @type {HTMLElement} */\n    window['$'] = window['uibuilder'].$ // document.querySelector.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` instead.')\n}\n// Assign `$$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$$']) {\n    /** @type {HTMLElement} */\n    window['$$'] = window['uibuilder'].$$ // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` instead.')\n}\n\n// Can import as `import uibuilder from ...` OR `import {uibuilder} from ...`\nexport { uibuilder }\nexport default uibuilder\n\n// Attempt to run start fn\nuibuilder.start()\n\n// Add the class as a new Custom Element to the window object\ncustomElements.define('uib-var', UibVar)\n\n//#endregion --- Wrap up ---\n\n// EOF\n", "/** A zero dependency web component that will display a managed uibuilder variable.\n *\n * Version: 0.0.1 2023-10-07\n *\n * ToDo:\n * -\n */\n/*\n  Copyright (c) 2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n// const template = document.createElement('template')\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<link type=\"text/css\" rel=\"stylesheet\" href=\"\"../uibuilder/uib-brand.min.css\"\" media=\"all\"><span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`\n// {/* <style>@import url(\"../uibuilder/uib-brand.min.css\");</style><span></span> */}\n// `\n\nexport default class UibVar extends HTMLElement {\n    //#region --- Class Properties ---\n    /** @type {string} Name of the uibuilder mangaged variable to use */\n    variable\n    /** Current value of the watched variable */\n    value\n    /** Whether to output if the variable is undefined */\n    undefined = false\n    /** Whether to send update value to Node-RED on change */\n    report = false\n    /** What is the value type */\n    type = 'plain'\n    /** what are the available types? */\n    types = ['plain', 'html', 'markdown', 'object']\n\n    /** Mini jQuery-like shadow dom selector (see constructor) */\n    $\n    \n    /** Holds a count of how many instances of this component are on the page */\n    static _iCount = 0\n    /** @type {Array<string>} List of all of the html attribs (props) listened to */\n    static props = ['name', 'id', 'variable', 'undefined', 'report', 'type']\n    //#endregion --- Class Properties ---\n\n    constructor() {\n        super()\n        this.shadow = this.attachShadow({ mode: 'open', delegatesFocus: true })\n            // .append(template.content.cloneNode(true))\n\n        this.$ = this.shadowRoot.querySelector.bind(this.shadowRoot)\n\n        // Apply external styles to the shadow dom\n        this.css = document.createElement(\"link\")\n        this.css.setAttribute(\"type\", \"text/css\")\n        this.css.setAttribute(\"rel\", \"stylesheet\")\n        this.css.setAttribute(\"href\", \"../uibuilder/uib-brand.min.css\")\n\n        this.dispatchEvent(new Event(`uib-var:construction`, { bubbles: true, composed: true }))\n    }\n\n    // Makes HTML attribute change watched\n    static get observedAttributes() {\n        return UibVar.props\n    }\n\n    /** NOTE: On initial startup, this is called for each watched attrib set in HTML - BEFORE connectedCallback is called  */\n    attributeChangedCallback(attrib, oldVal, newVal) {\n        if ( oldVal === newVal ) return\n\n        switch (attrib) {\n            case 'variable': {\n                if (newVal === '') throw new Error('[uib-var] Attribute \"variable\" MUST be set to a UIBUILDER managed variable name')\n                this.variable = newVal\n                this.doWatch()\n                break\n            }\n            case 'undefined': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.undefined = true\n                else this.undefined = false\n                break\n            }\n            case 'report': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.report = true\n                else this.report = false\n                break\n            }\n            case 'type': {\n                if (newVal === '' || !this.types.includes(newVal.toLowerCase())) this.type = 'plain'\n                else this.type = newVal\n                break\n            }\n\n            default: {\n                this[attrib] = newVal\n                break\n            }\n        }\n    } // --- end of attributeChangedCallback --- //\n\n    // Runs when an instance is added to the DOM\n    connectedCallback() {\n        // Make sure instance has an ID. Create an id from name or calculation if needed\n        if (!this.id) {\n            if (!this.name) this.name = this.getAttribute('name')\n            if (this.name) this.id = this.name.toLowerCase().replace(/\\s/g, '_')\n            else this.id = `uib-var-${++UibVar._iCount}`\n        }\n    }  // ---- end of connectedCallback ---- //\n\n    // Runs when an instance is removed from the DOM\n    // disconnectedCallback() {} // ---- end of disconnectedCallback ---- //\n\n    /** Process changes to the required uibuilder variable */\n    doWatch() {\n        if (!this.variable) throw new Error('No variable name provided')\n        // if (!window['uibuilder']) throw new Error('UIBUILDER client library not loaded - this component must be loaded AFTER the UIBUILDER library')\n\n        this.value = window['uibuilder'].get(this.variable)\n        this.varDom()\n\n        // Watch for changes in the variable\n        window['uibuilder'].onChange(this.variable, (val) => {\n            this.value = val\n            this.varDom()\n            if (this.report === true) window['uibuilder'].send({topic: this.variable, payload: this.value || undefined})\n        })\n    }\n\n    /** Convert this.value to DOM output */\n    varDom() {\n        // If user doesn't want to show undefined vars, allow the component slot to show instead\n        if (this.value === undefined && this.undefined !== true) { \n            this.shadow.innerHTML = '<slot></slot>'\n            return\n        }\n        \n        let val = this.value\n\n        // console.log('\uD83E\uDDEA varDOM: ', val, typeof val, this.type)\n\n        switch (this.type) {\n            case 'markdown': {\n                this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(window['uibuilder'].convertMarkdown(val))\n                break\n            }\n        \n            case 'object': {\n                // console.log(window['uibuilder'].syntaxHighlight(val))\n                this.shadow.innerHTML = `<pre class=\"syntax-highlight\">${window['uibuilder'].syntaxHighlight(val)}</pre>`\n                break\n            }\n        \n            case 'plain':\n            case 'html':\n            default: {\n                const t = typeof val\n                if (Array.isArray(val) || t === '[object Object]' || t === 'object') {\n                    try {\n                        this.shadow.innerHTML = JSON.stringify(val)\n                    } catch (e) {\n                        this.shadow.innerHTML = val\n                    }\n                } else {\n                    this.shadow.innerHTML = val\n                }\n                break\n            }\n        }\n\n        this.shadow.appendChild(this.css)\n        // this.$('span').innerHTML = window['uibuilder'].sanitiseHTML(val)\n        // this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(val)\n    }\n}\n\n// Add the class as a new Custom Element to the window object \n// customElements.define('uib-var', UibVar)\n", "const PACKET_TYPES = Object.create(null); // no Map = no polyfill\nPACKET_TYPES[\"open\"] = \"0\";\nPACKET_TYPES[\"close\"] = \"1\";\nPACKET_TYPES[\"ping\"] = \"2\";\nPACKET_TYPES[\"pong\"] = \"3\";\nPACKET_TYPES[\"message\"] = \"4\";\nPACKET_TYPES[\"upgrade\"] = \"5\";\nPACKET_TYPES[\"noop\"] = \"6\";\nconst PACKET_TYPES_REVERSE = Object.create(null);\nObject.keys(PACKET_TYPES).forEach(key => {\n    PACKET_TYPES_REVERSE[PACKET_TYPES[key]] = key;\n});\nconst ERROR_PACKET = { type: \"error\", data: \"parser error\" };\nexport { PACKET_TYPES, PACKET_TYPES_REVERSE, ERROR_PACKET };\n", "import { PACKET_TYPES } from \"./commons.js\";\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        Object.prototype.toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\n// ArrayBuffer.isView method is not defined in IE10\nconst isView = obj => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj && obj.buffer instanceof ArrayBuffer;\n};\nconst encodePacket = ({ type, data }, supportsBinary, callback) => {\n    if (withNativeBlob && data instanceof Blob) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(data, callback);\n        }\n    }\n    else if (withNativeArrayBuffer &&\n        (data instanceof ArrayBuffer || isView(data))) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(new Blob([data]), callback);\n        }\n    }\n    // plain string\n    return callback(PACKET_TYPES[type] + (data || \"\"));\n};\nconst encodeBlobAsBase64 = (data, callback) => {\n    const fileReader = new FileReader();\n    fileReader.onload = function () {\n        const content = fileReader.result.split(\",\")[1];\n        callback(\"b\" + (content || \"\"));\n    };\n    return fileReader.readAsDataURL(data);\n};\nfunction toArray(data) {\n    if (data instanceof Uint8Array) {\n        return data;\n    }\n    else if (data instanceof ArrayBuffer) {\n        return new Uint8Array(data);\n    }\n    else {\n        return new Uint8Array(data.buffer, data.byteOffset, data.byteLength);\n    }\n}\nlet TEXT_ENCODER;\nexport function encodePacketToBinary(packet, callback) {\n    if (withNativeBlob && packet.data instanceof Blob) {\n        return packet.data\n            .arrayBuffer()\n            .then(toArray)\n            .then(callback);\n    }\n    else if (withNativeArrayBuffer &&\n        (packet.data instanceof ArrayBuffer || isView(packet.data))) {\n        return callback(toArray(packet.data));\n    }\n    encodePacket(packet, false, encoded => {\n        if (!TEXT_ENCODER) {\n            TEXT_ENCODER = new TextEncoder();\n        }\n        callback(TEXT_ENCODER.encode(encoded));\n    });\n}\nexport { encodePacket };\n", "// imported from https://github.com/socketio/base64-arraybuffer\nconst chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';\n// Use a lookup table to find the index.\nconst lookup = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);\nfor (let i = 0; i < chars.length; i++) {\n    lookup[chars.charCodeAt(i)] = i;\n}\nexport const encode = (arraybuffer) => {\n    let bytes = new Uint8Array(arraybuffer), i, len = bytes.length, base64 = '';\n    for (i = 0; i < len; i += 3) {\n        base64 += chars[bytes[i] >> 2];\n        base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];\n        base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];\n        base64 += chars[bytes[i + 2] & 63];\n    }\n    if (len % 3 === 2) {\n        base64 = base64.substring(0, base64.length - 1) + '=';\n    }\n    else if (len % 3 === 1) {\n        base64 = base64.substring(0, base64.length - 2) + '==';\n    }\n    return base64;\n};\nexport const decode = (base64) => {\n    let bufferLength = base64.length * 0.75, len = base64.length, i, p = 0, encoded1, encoded2, encoded3, encoded4;\n    if (base64[base64.length - 1] === '=') {\n        bufferLength--;\n        if (base64[base64.length - 2] === '=') {\n            bufferLength--;\n        }\n    }\n    const arraybuffer = new ArrayBuffer(bufferLength), bytes = new Uint8Array(arraybuffer);\n    for (i = 0; i < len; i += 4) {\n        encoded1 = lookup[base64.charCodeAt(i)];\n        encoded2 = lookup[base64.charCodeAt(i + 1)];\n        encoded3 = lookup[base64.charCodeAt(i + 2)];\n        encoded4 = lookup[base64.charCodeAt(i + 3)];\n        bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n        bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n        bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n    }\n    return arraybuffer;\n};\n", "import { ERROR_PACKET, PACKET_TYPES_REVERSE } from \"./commons.js\";\nimport { decode } from \"./contrib/base64-arraybuffer.js\";\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nexport const decodePacket = (encodedPacket, binaryType) => {\n    if (typeof encodedPacket !== \"string\") {\n        return {\n            type: \"message\",\n            data: mapBinary(encodedPacket, binaryType)\n        };\n    }\n    const type = encodedPacket.charAt(0);\n    if (type === \"b\") {\n        return {\n            type: \"message\",\n            data: decodeBase64Packet(encodedPacket.substring(1), binaryType)\n        };\n    }\n    const packetType = PACKET_TYPES_REVERSE[type];\n    if (!packetType) {\n        return ERROR_PACKET;\n    }\n    return encodedPacket.length > 1\n        ? {\n            type: PACKET_TYPES_REVERSE[type],\n            data: encodedPacket.substring(1)\n        }\n        : {\n            type: PACKET_TYPES_REVERSE[type]\n        };\n};\nconst decodeBase64Packet = (data, binaryType) => {\n    if (withNativeArrayBuffer) {\n        const decoded = decode(data);\n        return mapBinary(decoded, binaryType);\n    }\n    else {\n        return { base64: true, data }; // fallback for old browsers\n    }\n};\nconst mapBinary = (data, binaryType) => {\n    switch (binaryType) {\n        case \"blob\":\n            if (data instanceof Blob) {\n                // from WebSocket + binaryType \"blob\"\n                return data;\n            }\n            else {\n                // from HTTP long-polling or WebTransport\n                return new Blob([data]);\n            }\n        case \"arraybuffer\":\n        default:\n            if (data instanceof ArrayBuffer) {\n                // from HTTP long-polling (base64) or WebSocket + binaryType \"arraybuffer\"\n                return data;\n            }\n            else {\n                // from WebTransport (Uint8Array)\n                return data.buffer;\n            }\n    }\n};\n", "import { encodePacket, encodePacketToBinary } from \"./encodePacket.js\";\nimport { decodePacket } from \"./decodePacket.js\";\nimport { ERROR_PACKET } from \"./commons.js\";\nconst SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text\nconst encodePayload = (packets, callback) => {\n    // some packets may be added to the array while encoding, so the initial length must be saved\n    const length = packets.length;\n    const encodedPackets = new Array(length);\n    let count = 0;\n    packets.forEach((packet, i) => {\n        // force base64 encoding for binary packets\n        encodePacket(packet, false, encodedPacket => {\n            encodedPackets[i] = encodedPacket;\n            if (++count === length) {\n                callback(encodedPackets.join(SEPARATOR));\n            }\n        });\n    });\n};\nconst decodePayload = (encodedPayload, binaryType) => {\n    const encodedPackets = encodedPayload.split(SEPARATOR);\n    const packets = [];\n    for (let i = 0; i < encodedPackets.length; i++) {\n        const decodedPacket = decodePacket(encodedPackets[i], binaryType);\n        packets.push(decodedPacket);\n        if (decodedPacket.type === \"error\") {\n            break;\n        }\n    }\n    return packets;\n};\nexport function createPacketEncoderStream() {\n    return new TransformStream({\n        transform(packet, controller) {\n            encodePacketToBinary(packet, encodedPacket => {\n                const payloadLength = encodedPacket.length;\n                let header;\n                // inspired by the WebSocket format: https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API/Writing_WebSocket_servers#decoding_payload_length\n                if (payloadLength < 126) {\n                    header = new Uint8Array(1);\n                    new DataView(header.buffer).setUint8(0, payloadLength);\n                }\n                else if (payloadLength < 65536) {\n                    header = new Uint8Array(3);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 126);\n                    view.setUint16(1, payloadLength);\n                }\n                else {\n                    header = new Uint8Array(9);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 127);\n                    view.setBigUint64(1, BigInt(payloadLength));\n                }\n                // first bit indicates whether the payload is plain text (0) or binary (1)\n                if (packet.data && typeof packet.data !== \"string\") {\n                    header[0] |= 0x80;\n                }\n                controller.enqueue(header);\n                controller.enqueue(encodedPacket);\n            });\n        }\n    });\n}\nlet TEXT_DECODER;\nfunction totalLength(chunks) {\n    return chunks.reduce((acc, chunk) => acc + chunk.length, 0);\n}\nfunction concatChunks(chunks, size) {\n    if (chunks[0].length === size) {\n        return chunks.shift();\n    }\n    const buffer = new Uint8Array(size);\n    let j = 0;\n    for (let i = 0; i < size; i++) {\n        buffer[i] = chunks[0][j++];\n        if (j === chunks[0].length) {\n            chunks.shift();\n            j = 0;\n        }\n    }\n    if (chunks.length && j < chunks[0].length) {\n        chunks[0] = chunks[0].slice(j);\n    }\n    return buffer;\n}\nexport function createPacketDecoderStream(maxPayload, binaryType) {\n    if (!TEXT_DECODER) {\n        TEXT_DECODER = new TextDecoder();\n    }\n    const chunks = [];\n    let state = 0 /* READ_HEADER */;\n    let expectedLength = -1;\n    let isBinary = false;\n    return new TransformStream({\n        transform(chunk, controller) {\n            chunks.push(chunk);\n            while (true) {\n                if (state === 0 /* READ_HEADER */) {\n                    if (totalLength(chunks) < 1) {\n                        break;\n                    }\n                    const header = concatChunks(chunks, 1);\n                    isBinary = (header[0] & 0x80) === 0x80;\n                    expectedLength = header[0] & 0x7f;\n                    if (expectedLength < 126) {\n                        state = 3 /* READ_PAYLOAD */;\n                    }\n                    else if (expectedLength === 126) {\n                        state = 1 /* READ_EXTENDED_LENGTH_16 */;\n                    }\n                    else {\n                        state = 2 /* READ_EXTENDED_LENGTH_64 */;\n                    }\n                }\n                else if (state === 1 /* READ_EXTENDED_LENGTH_16 */) {\n                    if (totalLength(chunks) < 2) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 2);\n                    expectedLength = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length).getUint16(0);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else if (state === 2 /* READ_EXTENDED_LENGTH_64 */) {\n                    if (totalLength(chunks) < 8) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 8);\n                    const view = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length);\n                    const n = view.getUint32(0);\n                    if (n > Math.pow(2, 53 - 32) - 1) {\n                        // the maximum safe integer in JavaScript is 2^53 - 1\n                        controller.enqueue(ERROR_PACKET);\n                        break;\n                    }\n                    expectedLength = n * Math.pow(2, 32) + view.getUint32(4);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else {\n                    if (totalLength(chunks) < expectedLength) {\n                        break;\n                    }\n                    const data = concatChunks(chunks, expectedLength);\n                    controller.enqueue(decodePacket(isBinary ? data : TEXT_DECODER.decode(data), binaryType));\n                    state = 0 /* READ_HEADER */;\n                }\n                if (expectedLength === 0 || expectedLength > maxPayload) {\n                    controller.enqueue(ERROR_PACKET);\n                    break;\n                }\n            }\n        }\n    });\n}\nexport const protocol = 4;\nexport { encodePacket, encodePayload, decodePacket, decodePayload };\n", "/**\n * Initialize a new `Emitter`.\n *\n * @api public\n */\n\nexport function Emitter(obj) {\n  if (obj) return mixin(obj);\n}\n\n/**\n * Mixin the emitter properties.\n *\n * @param {Object} obj\n * @return {Object}\n * @api private\n */\n\nfunction mixin(obj) {\n  for (var key in Emitter.prototype) {\n    obj[key] = Emitter.prototype[key];\n  }\n  return obj;\n}\n\n/**\n * Listen on the given `event` with `fn`.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.on =\nEmitter.prototype.addEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])\n    .push(fn);\n  return this;\n};\n\n/**\n * Adds an `event` listener that will be invoked a single\n * time then automatically removed.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.once = function(event, fn){\n  function on() {\n    this.off(event, on);\n    fn.apply(this, arguments);\n  }\n\n  on.fn = fn;\n  this.on(event, on);\n  return this;\n};\n\n/**\n * Remove the given callback for `event` or all\n * registered callbacks.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.off =\nEmitter.prototype.removeListener =\nEmitter.prototype.removeAllListeners =\nEmitter.prototype.removeEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n\n  // all\n  if (0 == arguments.length) {\n    this._callbacks = {};\n    return this;\n  }\n\n  // specific event\n  var callbacks = this._callbacks['$' + event];\n  if (!callbacks) return this;\n\n  // remove all handlers\n  if (1 == arguments.length) {\n    delete this._callbacks['$' + event];\n    return this;\n  }\n\n  // remove specific handler\n  var cb;\n  for (var i = 0; i < callbacks.length; i++) {\n    cb = callbacks[i];\n    if (cb === fn || cb.fn === fn) {\n      callbacks.splice(i, 1);\n      break;\n    }\n  }\n\n  // Remove event specific arrays for event types that no\n  // one is subscribed for to avoid memory leak.\n  if (callbacks.length === 0) {\n    delete this._callbacks['$' + event];\n  }\n\n  return this;\n};\n\n/**\n * Emit `event` with the given args.\n *\n * @param {String} event\n * @param {Mixed} ...\n * @return {Emitter}\n */\n\nEmitter.prototype.emit = function(event){\n  this._callbacks = this._callbacks || {};\n\n  var args = new Array(arguments.length - 1)\n    , callbacks = this._callbacks['$' + event];\n\n  for (var i = 1; i < arguments.length; i++) {\n    args[i - 1] = arguments[i];\n  }\n\n  if (callbacks) {\n    callbacks = callbacks.slice(0);\n    for (var i = 0, len = callbacks.length; i < len; ++i) {\n      callbacks[i].apply(this, args);\n    }\n  }\n\n  return this;\n};\n\n// alias used for reserved events (protected method)\nEmitter.prototype.emitReserved = Emitter.prototype.emit;\n\n/**\n * Return array of callbacks for `event`.\n *\n * @param {String} event\n * @return {Array}\n * @api public\n */\n\nEmitter.prototype.listeners = function(event){\n  this._callbacks = this._callbacks || {};\n  return this._callbacks['$' + event] || [];\n};\n\n/**\n * Check if this emitter has `event` handlers.\n *\n * @param {String} event\n * @return {Boolean}\n * @api public\n */\n\nEmitter.prototype.hasListeners = function(event){\n  return !! this.listeners(event).length;\n};\n", "export const globalThisShim = (() => {\n    if (typeof self !== \"undefined\") {\n        return self;\n    }\n    else if (typeof window !== \"undefined\") {\n        return window;\n    }\n    else {\n        return Function(\"return this\")();\n    }\n})();\n", "import { globalThisShim as globalThis } from \"./globalThis.js\";\nexport function pick(obj, ...attr) {\n    return attr.reduce((acc, k) => {\n        if (obj.hasOwnProperty(k)) {\n            acc[k] = obj[k];\n        }\n        return acc;\n    }, {});\n}\n// Keep a reference to the real timeout functions so they can be used when overridden\nconst NATIVE_SET_TIMEOUT = globalThis.setTimeout;\nconst NATIVE_CLEAR_TIMEOUT = globalThis.clearTimeout;\nexport function installTimerFunctions(obj, opts) {\n    if (opts.useNativeTimers) {\n        obj.setTimeoutFn = NATIVE_SET_TIMEOUT.bind(globalThis);\n        obj.clearTimeoutFn = NATIVE_CLEAR_TIMEOUT.bind(globalThis);\n    }\n    else {\n        obj.setTimeoutFn = globalThis.setTimeout.bind(globalThis);\n        obj.clearTimeoutFn = globalThis.clearTimeout.bind(globalThis);\n    }\n}\n// base64 encoded buffers are about 33% bigger (https://en.wikipedia.org/wiki/Base64)\nconst BASE64_OVERHEAD = 1.33;\n// we could also have used `new Blob([obj]).size`, but it isn't supported in IE9\nexport function byteLength(obj) {\n    if (typeof obj === \"string\") {\n        return utf8Length(obj);\n    }\n    // arraybuffer or blob\n    return Math.ceil((obj.byteLength || obj.size) * BASE64_OVERHEAD);\n}\nfunction utf8Length(str) {\n    let c = 0, length = 0;\n    for (let i = 0, l = str.length; i < l; i++) {\n        c = str.charCodeAt(i);\n        if (c < 0x80) {\n            length += 1;\n        }\n        else if (c < 0x800) {\n            length += 2;\n        }\n        else if (c < 0xd800 || c >= 0xe000) {\n            length += 3;\n        }\n        else {\n            i++;\n            length += 4;\n        }\n    }\n    return length;\n}\n", "// imported from https://github.com/galkn/querystring\n/**\n * Compiles a querystring\n * Returns string representation of the object\n *\n * @param {Object}\n * @api private\n */\nexport function encode(obj) {\n    let str = '';\n    for (let i in obj) {\n        if (obj.hasOwnProperty(i)) {\n            if (str.length)\n                str += '&';\n            str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);\n        }\n    }\n    return str;\n}\n/**\n * Parses a simple querystring into an object\n *\n * @param {String} qs\n * @api private\n */\nexport function decode(qs) {\n    let qry = {};\n    let pairs = qs.split('&');\n    for (let i = 0, l = pairs.length; i < l; i++) {\n        let pair = pairs[i].split('=');\n        qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);\n    }\n    return qry;\n}\n", "import { decodePacket } from \"engine.io-parser\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions } from \"./util.js\";\nimport { encode } from \"./contrib/parseqs.js\";\nclass TransportError extends Error {\n    constructor(reason, description, context) {\n        super(reason);\n        this.description = description;\n        this.context = context;\n        this.type = \"TransportError\";\n    }\n}\nexport class Transport extends Emitter {\n    /**\n     * Transport abstract constructor.\n     *\n     * @param {Object} opts - options\n     * @protected\n     */\n    constructor(opts) {\n        super();\n        this.writable = false;\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.query = opts.query;\n        this.socket = opts.socket;\n    }\n    /**\n     * Emits an error.\n     *\n     * @param {String} reason\n     * @param description\n     * @param context - the error context\n     * @return {Transport} for chaining\n     * @protected\n     */\n    onError(reason, description, context) {\n        super.emitReserved(\"error\", new TransportError(reason, description, context));\n        return this;\n    }\n    /**\n     * Opens the transport.\n     */\n    open() {\n        this.readyState = \"opening\";\n        this.doOpen();\n        return this;\n    }\n    /**\n     * Closes the transport.\n     */\n    close() {\n        if (this.readyState === \"opening\" || this.readyState === \"open\") {\n            this.doClose();\n            this.onClose();\n        }\n        return this;\n    }\n    /**\n     * Sends multiple packets.\n     *\n     * @param {Array} packets\n     */\n    send(packets) {\n        if (this.readyState === \"open\") {\n            this.write(packets);\n        }\n        else {\n            // this might happen if the transport was silently closed in the beforeunload event handler\n        }\n    }\n    /**\n     * Called upon open\n     *\n     * @protected\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        this.writable = true;\n        super.emitReserved(\"open\");\n    }\n    /**\n     * Called with data.\n     *\n     * @param {String} data\n     * @protected\n     */\n    onData(data) {\n        const packet = decodePacket(data, this.socket.binaryType);\n        this.onPacket(packet);\n    }\n    /**\n     * Called with a decoded packet.\n     *\n     * @protected\n     */\n    onPacket(packet) {\n        super.emitReserved(\"packet\", packet);\n    }\n    /**\n     * Called upon close.\n     *\n     * @protected\n     */\n    onClose(details) {\n        this.readyState = \"closed\";\n        super.emitReserved(\"close\", details);\n    }\n    /**\n     * Pauses the transport, in order not to lose packets during an upgrade.\n     *\n     * @param onPause\n     */\n    pause(onPause) { }\n    createUri(schema, query = {}) {\n        return (schema +\n            \"://\" +\n            this._hostname() +\n            this._port() +\n            this.opts.path +\n            this._query(query));\n    }\n    _hostname() {\n        const hostname = this.opts.hostname;\n        return hostname.indexOf(\":\") === -1 ? hostname : \"[\" + hostname + \"]\";\n    }\n    _port() {\n        if (this.opts.port &&\n            ((this.opts.secure && Number(this.opts.port !== 443)) ||\n                (!this.opts.secure && Number(this.opts.port) !== 80))) {\n            return \":\" + this.opts.port;\n        }\n        else {\n            return \"\";\n        }\n    }\n    _query(query) {\n        const encodedQuery = encode(query);\n        return encodedQuery.length ? \"?\" + encodedQuery : \"\";\n    }\n}\n", "// imported from https://github.com/unshiftio/yeast\n'use strict';\nconst alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split(''), length = 64, map = {};\nlet seed = 0, i = 0, prev;\n/**\n * Return a string representing the specified number.\n *\n * @param {Number} num The number to convert.\n * @returns {String} The string representation of the number.\n * @api public\n */\nexport function encode(num) {\n    let encoded = '';\n    do {\n        encoded = alphabet[num % length] + encoded;\n        num = Math.floor(num / length);\n    } while (num > 0);\n    return encoded;\n}\n/**\n * Return the integer value specified by the given string.\n *\n * @param {String} str The string to convert.\n * @returns {Number} The integer value represented by the string.\n * @api public\n */\nexport function decode(str) {\n    let decoded = 0;\n    for (i = 0; i < str.length; i++) {\n        decoded = decoded * length + map[str.charAt(i)];\n    }\n    return decoded;\n}\n/**\n * Yeast: A tiny growing id generator.\n *\n * @returns {String} A unique id.\n * @api public\n */\nexport function yeast() {\n    const now = encode(+new Date());\n    if (now !== prev)\n        return seed = 0, prev = now;\n    return now + '.' + encode(seed++);\n}\n//\n// Map each character to its index.\n//\nfor (; i < length; i++)\n    map[alphabet[i]] = i;\n", "// imported from https://github.com/component/has-cors\nlet value = false;\ntry {\n    value = typeof XMLHttpRequest !== 'undefined' &&\n        'withCredentials' in new XMLHttpRequest();\n}\ncatch (err) {\n    // if XMLHttp support is disabled in IE then it will throw\n    // when trying to create\n}\nexport const hasCORS = value;\n", "// browser shim for xmlhttprequest module\nimport { hasCORS } from \"../contrib/has-cors.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nexport function XHR(opts) {\n    const xdomain = opts.xdomain;\n    // XMLHttpRequest can be disabled on IE\n    try {\n        if (\"undefined\" !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {\n            return new XMLHttpRequest();\n        }\n    }\n    catch (e) { }\n    if (!xdomain) {\n        try {\n            return new globalThis[[\"Active\"].concat(\"Object\").join(\"X\")](\"Microsoft.XMLHTTP\");\n        }\n        catch (e) { }\n    }\n}\nexport function createCookieJar() { }\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { encodePayload, decodePayload } from \"engine.io-parser\";\nimport { createCookieJar, XHR as XMLHttpRequest, } from \"./xmlhttprequest.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions, pick } from \"../util.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nfunction empty() { }\nconst hasXHR2 = (function () {\n    const xhr = new XMLHttpRequest({\n        xdomain: false,\n    });\n    return null != xhr.responseType;\n})();\nexport class Polling extends Transport {\n    /**\n     * XHR Polling constructor.\n     *\n     * @param {Object} opts\n     * @package\n     */\n    constructor(opts) {\n        super(opts);\n        this.polling = false;\n        if (typeof location !== \"undefined\") {\n            const isSSL = \"https:\" === location.protocol;\n            let port = location.port;\n            // some user agents have empty `location.port`\n            if (!port) {\n                port = isSSL ? \"443\" : \"80\";\n            }\n            this.xd =\n                (typeof location !== \"undefined\" &&\n                    opts.hostname !== location.hostname) ||\n                    port !== opts.port;\n        }\n        /**\n         * XHR supports binary\n         */\n        const forceBase64 = opts && opts.forceBase64;\n        this.supportsBinary = hasXHR2 && !forceBase64;\n        if (this.opts.withCredentials) {\n            this.cookieJar = createCookieJar();\n        }\n    }\n    get name() {\n        return \"polling\";\n    }\n    /**\n     * Opens the socket (triggers polling). We write a PING message to determine\n     * when the transport is open.\n     *\n     * @protected\n     */\n    doOpen() {\n        this.poll();\n    }\n    /**\n     * Pauses polling.\n     *\n     * @param {Function} onPause - callback upon buffers are flushed and transport is paused\n     * @package\n     */\n    pause(onPause) {\n        this.readyState = \"pausing\";\n        const pause = () => {\n            this.readyState = \"paused\";\n            onPause();\n        };\n        if (this.polling || !this.writable) {\n            let total = 0;\n            if (this.polling) {\n                total++;\n                this.once(\"pollComplete\", function () {\n                    --total || pause();\n                });\n            }\n            if (!this.writable) {\n                total++;\n                this.once(\"drain\", function () {\n                    --total || pause();\n                });\n            }\n        }\n        else {\n            pause();\n        }\n    }\n    /**\n     * Starts polling cycle.\n     *\n     * @private\n     */\n    poll() {\n        this.polling = true;\n        this.doPoll();\n        this.emitReserved(\"poll\");\n    }\n    /**\n     * Overloads onData to detect payloads.\n     *\n     * @protected\n     */\n    onData(data) {\n        const callback = (packet) => {\n            // if its the first message we consider the transport open\n            if (\"opening\" === this.readyState && packet.type === \"open\") {\n                this.onOpen();\n            }\n            // if its a close packet, we close the ongoing requests\n            if (\"close\" === packet.type) {\n                this.onClose({ description: \"transport closed by the server\" });\n                return false;\n            }\n            // otherwise bypass onData and handle the message\n            this.onPacket(packet);\n        };\n        // decode payload\n        decodePayload(data, this.socket.binaryType).forEach(callback);\n        // if an event did not trigger closing\n        if (\"closed\" !== this.readyState) {\n            // if we got data we're not polling\n            this.polling = false;\n            this.emitReserved(\"pollComplete\");\n            if (\"open\" === this.readyState) {\n                this.poll();\n            }\n            else {\n            }\n        }\n    }\n    /**\n     * For polling, send a close packet.\n     *\n     * @protected\n     */\n    doClose() {\n        const close = () => {\n            this.write([{ type: \"close\" }]);\n        };\n        if (\"open\" === this.readyState) {\n            close();\n        }\n        else {\n            // in case we're trying to close while\n            // handshaking is in progress (GH-164)\n            this.once(\"open\", close);\n        }\n    }\n    /**\n     * Writes a packets payload.\n     *\n     * @param {Array} packets - data packets\n     * @protected\n     */\n    write(packets) {\n        this.writable = false;\n        encodePayload(packets, (data) => {\n            this.doWrite(data, () => {\n                this.writable = true;\n                this.emitReserved(\"drain\");\n            });\n        });\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"https\" : \"http\";\n        const query = this.query || {};\n        // cache busting is forced\n        if (false !== this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        if (!this.supportsBinary && !query.sid) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Creates a request.\n     *\n     * @param {String} method\n     * @private\n     */\n    request(opts = {}) {\n        Object.assign(opts, { xd: this.xd, cookieJar: this.cookieJar }, this.opts);\n        return new Request(this.uri(), opts);\n    }\n    /**\n     * Sends data.\n     *\n     * @param {String} data to send.\n     * @param {Function} called upon flush.\n     * @private\n     */\n    doWrite(data, fn) {\n        const req = this.request({\n            method: \"POST\",\n            data: data,\n        });\n        req.on(\"success\", fn);\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr post error\", xhrStatus, context);\n        });\n    }\n    /**\n     * Starts a poll cycle.\n     *\n     * @private\n     */\n    doPoll() {\n        const req = this.request();\n        req.on(\"data\", this.onData.bind(this));\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr poll error\", xhrStatus, context);\n        });\n        this.pollXhr = req;\n    }\n}\nexport class Request extends Emitter {\n    /**\n     * Request constructor\n     *\n     * @param {Object} options\n     * @package\n     */\n    constructor(uri, opts) {\n        super();\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.method = opts.method || \"GET\";\n        this.uri = uri;\n        this.data = undefined !== opts.data ? opts.data : null;\n        this.create();\n    }\n    /**\n     * Creates the XHR object and sends the request.\n     *\n     * @private\n     */\n    create() {\n        var _a;\n        const opts = pick(this.opts, \"agent\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"autoUnref\");\n        opts.xdomain = !!this.opts.xd;\n        const xhr = (this.xhr = new XMLHttpRequest(opts));\n        try {\n            xhr.open(this.method, this.uri, true);\n            try {\n                if (this.opts.extraHeaders) {\n                    xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);\n                    for (let i in this.opts.extraHeaders) {\n                        if (this.opts.extraHeaders.hasOwnProperty(i)) {\n                            xhr.setRequestHeader(i, this.opts.extraHeaders[i]);\n                        }\n                    }\n                }\n            }\n            catch (e) { }\n            if (\"POST\" === this.method) {\n                try {\n                    xhr.setRequestHeader(\"Content-type\", \"text/plain;charset=UTF-8\");\n                }\n                catch (e) { }\n            }\n            try {\n                xhr.setRequestHeader(\"Accept\", \"*/*\");\n            }\n            catch (e) { }\n            (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.addCookies(xhr);\n            // ie6 check\n            if (\"withCredentials\" in xhr) {\n                xhr.withCredentials = this.opts.withCredentials;\n            }\n            if (this.opts.requestTimeout) {\n                xhr.timeout = this.opts.requestTimeout;\n            }\n            xhr.onreadystatechange = () => {\n                var _a;\n                if (xhr.readyState === 3) {\n                    (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.parseCookies(xhr);\n                }\n                if (4 !== xhr.readyState)\n                    return;\n                if (200 === xhr.status || 1223 === xhr.status) {\n                    this.onLoad();\n                }\n                else {\n                    // make sure the `error` event handler that's user-set\n                    // does not throw in the same tick and gets caught here\n                    this.setTimeoutFn(() => {\n                        this.onError(typeof xhr.status === \"number\" ? xhr.status : 0);\n                    }, 0);\n                }\n            };\n            xhr.send(this.data);\n        }\n        catch (e) {\n            // Need to defer since .create() is called directly from the constructor\n            // and thus the 'error' event can only be only bound *after* this exception\n            // occurs.  Therefore, also, we cannot throw here at all.\n            this.setTimeoutFn(() => {\n                this.onError(e);\n            }, 0);\n            return;\n        }\n        if (typeof document !== \"undefined\") {\n            this.index = Request.requestsCount++;\n            Request.requests[this.index] = this;\n        }\n    }\n    /**\n     * Called upon error.\n     *\n     * @private\n     */\n    onError(err) {\n        this.emitReserved(\"error\", err, this.xhr);\n        this.cleanup(true);\n    }\n    /**\n     * Cleans up house.\n     *\n     * @private\n     */\n    cleanup(fromError) {\n        if (\"undefined\" === typeof this.xhr || null === this.xhr) {\n            return;\n        }\n        this.xhr.onreadystatechange = empty;\n        if (fromError) {\n            try {\n                this.xhr.abort();\n            }\n            catch (e) { }\n        }\n        if (typeof document !== \"undefined\") {\n            delete Request.requests[this.index];\n        }\n        this.xhr = null;\n    }\n    /**\n     * Called upon load.\n     *\n     * @private\n     */\n    onLoad() {\n        const data = this.xhr.responseText;\n        if (data !== null) {\n            this.emitReserved(\"data\", data);\n            this.emitReserved(\"success\");\n            this.cleanup();\n        }\n    }\n    /**\n     * Aborts the request.\n     *\n     * @package\n     */\n    abort() {\n        this.cleanup();\n    }\n}\nRequest.requestsCount = 0;\nRequest.requests = {};\n/**\n * Aborts pending requests when unloading the window. This is needed to prevent\n * memory leaks (e.g. when using IE) and to ensure that no spurious error is\n * emitted.\n */\nif (typeof document !== \"undefined\") {\n    // @ts-ignore\n    if (typeof attachEvent === \"function\") {\n        // @ts-ignore\n        attachEvent(\"onunload\", unloadHandler);\n    }\n    else if (typeof addEventListener === \"function\") {\n        const terminationEvent = \"onpagehide\" in globalThis ? \"pagehide\" : \"unload\";\n        addEventListener(terminationEvent, unloadHandler, false);\n    }\n}\nfunction unloadHandler() {\n    for (let i in Request.requests) {\n        if (Request.requests.hasOwnProperty(i)) {\n            Request.requests[i].abort();\n        }\n    }\n}\n", "import { globalThisShim as globalThis } from \"../globalThis.js\";\nexport const nextTick = (() => {\n    const isPromiseAvailable = typeof Promise === \"function\" && typeof Promise.resolve === \"function\";\n    if (isPromiseAvailable) {\n        return (cb) => Promise.resolve().then(cb);\n    }\n    else {\n        return (cb, setTimeoutFn) => setTimeoutFn(cb, 0);\n    }\n})();\nexport const WebSocket = globalThis.WebSocket || globalThis.MozWebSocket;\nexport const usingBrowserWebSocket = true;\nexport const defaultBinaryType = \"arraybuffer\";\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { pick } from \"../util.js\";\nimport { nextTick, usingBrowserWebSocket, WebSocket, } from \"./websocket-constructor.js\";\nimport { encodePacket } from \"engine.io-parser\";\n// detect ReactNative environment\nconst isReactNative = typeof navigator !== \"undefined\" &&\n    typeof navigator.product === \"string\" &&\n    navigator.product.toLowerCase() === \"reactnative\";\nexport class WS extends Transport {\n    /**\n     * WebSocket transport constructor.\n     *\n     * @param {Object} opts - connection options\n     * @protected\n     */\n    constructor(opts) {\n        super(opts);\n        this.supportsBinary = !opts.forceBase64;\n    }\n    get name() {\n        return \"websocket\";\n    }\n    doOpen() {\n        if (!this.check()) {\n            // let probe timeout\n            return;\n        }\n        const uri = this.uri();\n        const protocols = this.opts.protocols;\n        // React Native only supports the 'headers' option, and will print a warning if anything else is passed\n        const opts = isReactNative\n            ? {}\n            : pick(this.opts, \"agent\", \"perMessageDeflate\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"localAddress\", \"protocolVersion\", \"origin\", \"maxPayload\", \"family\", \"checkServerIdentity\");\n        if (this.opts.extraHeaders) {\n            opts.headers = this.opts.extraHeaders;\n        }\n        try {\n            this.ws =\n                usingBrowserWebSocket && !isReactNative\n                    ? protocols\n                        ? new WebSocket(uri, protocols)\n                        : new WebSocket(uri)\n                    : new WebSocket(uri, protocols, opts);\n        }\n        catch (err) {\n            return this.emitReserved(\"error\", err);\n        }\n        this.ws.binaryType = this.socket.binaryType;\n        this.addEventListeners();\n    }\n    /**\n     * Adds event listeners to the socket\n     *\n     * @private\n     */\n    addEventListeners() {\n        this.ws.onopen = () => {\n            if (this.opts.autoUnref) {\n                this.ws._socket.unref();\n            }\n            this.onOpen();\n        };\n        this.ws.onclose = (closeEvent) => this.onClose({\n            description: \"websocket connection closed\",\n            context: closeEvent,\n        });\n        this.ws.onmessage = (ev) => this.onData(ev.data);\n        this.ws.onerror = (e) => this.onError(\"websocket error\", e);\n    }\n    write(packets) {\n        this.writable = false;\n        // encodePacket efficient as it uses WS framing\n        // no need for encodePayload\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            encodePacket(packet, this.supportsBinary, (data) => {\n                // always create a new object (GH-437)\n                const opts = {};\n                if (!usingBrowserWebSocket) {\n                    if (packet.options) {\n                        opts.compress = packet.options.compress;\n                    }\n                    if (this.opts.perMessageDeflate) {\n                        const len = \n                        // @ts-ignore\n                        \"string\" === typeof data ? Buffer.byteLength(data) : data.length;\n                        if (len < this.opts.perMessageDeflate.threshold) {\n                            opts.compress = false;\n                        }\n                    }\n                }\n                // Sometimes the websocket has already been closed but the browser didn't\n                // have a chance of informing us about it yet, in that case send will\n                // throw an error\n                try {\n                    if (usingBrowserWebSocket) {\n                        // TypeError is thrown when passing the second argument on Safari\n                        this.ws.send(data);\n                    }\n                    else {\n                        this.ws.send(data, opts);\n                    }\n                }\n                catch (e) {\n                }\n                if (lastPacket) {\n                    // fake drain\n                    // defer to next tick to allow Socket to clear writeBuffer\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        if (typeof this.ws !== \"undefined\") {\n            this.ws.close();\n            this.ws = null;\n        }\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"wss\" : \"ws\";\n        const query = this.query || {};\n        // append timestamp to URI\n        if (this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        // communicate binary support capabilities\n        if (!this.supportsBinary) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Feature detection for WebSocket.\n     *\n     * @return {Boolean} whether this transport is available.\n     * @private\n     */\n    check() {\n        return !!WebSocket;\n    }\n}\n", "import { Transport } from \"../transport.js\";\nimport { nextTick } from \"./websocket-constructor.js\";\nimport { createPacketDecoderStream, createPacketEncoderStream, } from \"engine.io-parser\";\nexport class WT extends Transport {\n    get name() {\n        return \"webtransport\";\n    }\n    doOpen() {\n        // @ts-ignore\n        if (typeof WebTransport !== \"function\") {\n            return;\n        }\n        // @ts-ignore\n        this.transport = new WebTransport(this.createUri(\"https\"), this.opts.transportOptions[this.name]);\n        this.transport.closed\n            .then(() => {\n            this.onClose();\n        })\n            .catch((err) => {\n            this.onError(\"webtransport error\", err);\n        });\n        // note: we could have used async/await, but that would require some additional polyfills\n        this.transport.ready.then(() => {\n            this.transport.createBidirectionalStream().then((stream) => {\n                const decoderStream = createPacketDecoderStream(Number.MAX_SAFE_INTEGER, this.socket.binaryType);\n                const reader = stream.readable.pipeThrough(decoderStream).getReader();\n                const encoderStream = createPacketEncoderStream();\n                encoderStream.readable.pipeTo(stream.writable);\n                this.writer = encoderStream.writable.getWriter();\n                const read = () => {\n                    reader\n                        .read()\n                        .then(({ done, value }) => {\n                        if (done) {\n                            return;\n                        }\n                        this.onPacket(value);\n                        read();\n                    })\n                        .catch((err) => {\n                    });\n                };\n                read();\n                const packet = { type: \"open\" };\n                if (this.query.sid) {\n                    packet.data = `{\"sid\":\"${this.query.sid}\"}`;\n                }\n                this.writer.write(packet).then(() => this.onOpen());\n            });\n        });\n    }\n    write(packets) {\n        this.writable = false;\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            this.writer.write(packet).then(() => {\n                if (lastPacket) {\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        var _a;\n        (_a = this.transport) === null || _a === void 0 ? void 0 : _a.close();\n    }\n}\n", "import { Polling } from \"./polling.js\";\nimport { WS } from \"./websocket.js\";\nimport { WT } from \"./webtransport.js\";\nexport const transports = {\n    websocket: WS,\n    webtransport: WT,\n    polling: Polling,\n};\n", "// imported from https://github.com/galkn/parseuri\n/**\n * Parses a URI\n *\n * Note: we could also have used the built-in URL object, but it isn't supported on all platforms.\n *\n * See:\n * - https://developer.mozilla.org/en-US/docs/Web/API/URL\n * - https://caniuse.com/url\n * - https://www.rfc-editor.org/rfc/rfc3986#appendix-B\n *\n * History of the parse() method:\n * - first commit: https://github.com/socketio/socket.io-client/commit/4ee1d5d94b3906a9c052b459f1a818b15f38f91c\n * - export into its own module: https://github.com/socketio/engine.io-client/commit/de2c561e4564efeb78f1bdb1ba39ef81b2822cb3\n * - reimport: https://github.com/socketio/engine.io-client/commit/df32277c3f6d622eec5ed09f493cae3f3391d242\n *\n * @author Steven Levithan <stevenlevithan.com> (MIT license)\n * @api private\n */\nconst re = /^(?:(?![^:@\\/?#]+:[^:@\\/]*@)(http|https|ws|wss):\\/\\/)?((?:(([^:@\\/?#]*)(?::([^:@\\/?#]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\\/?#]*)(?::(\\d*))?)(((\\/(?:[^?#](?![^?#\\/]*\\.[^?#\\/.]+(?:[?#]|$)))*\\/?)?([^?#\\/]*))(?:\\?([^#]*))?(?:#(.*))?)/;\nconst parts = [\n    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'\n];\nexport function parse(str) {\n    const src = str, b = str.indexOf('['), e = str.indexOf(']');\n    if (b != -1 && e != -1) {\n        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);\n    }\n    let m = re.exec(str || ''), uri = {}, i = 14;\n    while (i--) {\n        uri[parts[i]] = m[i] || '';\n    }\n    if (b != -1 && e != -1) {\n        uri.source = src;\n        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');\n        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');\n        uri.ipv6uri = true;\n    }\n    uri.pathNames = pathNames(uri, uri['path']);\n    uri.queryKey = queryKey(uri, uri['query']);\n    return uri;\n}\nfunction pathNames(obj, path) {\n    const regx = /\\/{2,9}/g, names = path.replace(regx, \"/\").split(\"/\");\n    if (path.slice(0, 1) == '/' || path.length === 0) {\n        names.splice(0, 1);\n    }\n    if (path.slice(-1) == '/') {\n        names.splice(names.length - 1, 1);\n    }\n    return names;\n}\nfunction queryKey(uri, query) {\n    const data = {};\n    query.replace(/(?:^|&)([^&=]*)=?([^&]*)/g, function ($0, $1, $2) {\n        if ($1) {\n            data[$1] = $2;\n        }\n    });\n    return data;\n}\n", "import { transports } from \"./transports/index.js\";\nimport { installTimerFunctions, byteLength } from \"./util.js\";\nimport { decode } from \"./contrib/parseqs.js\";\nimport { parse } from \"./contrib/parseuri.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { protocol } from \"engine.io-parser\";\nimport { defaultBinaryType } from \"./transports/websocket-constructor.js\";\nexport class Socket extends Emitter {\n    /**\n     * Socket constructor.\n     *\n     * @param {String|Object} uri - uri or options\n     * @param {Object} opts - options\n     */\n    constructor(uri, opts = {}) {\n        super();\n        this.binaryType = defaultBinaryType;\n        this.writeBuffer = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = null;\n        }\n        if (uri) {\n            uri = parse(uri);\n            opts.hostname = uri.host;\n            opts.secure = uri.protocol === \"https\" || uri.protocol === \"wss\";\n            opts.port = uri.port;\n            if (uri.query)\n                opts.query = uri.query;\n        }\n        else if (opts.host) {\n            opts.hostname = parse(opts.host).host;\n        }\n        installTimerFunctions(this, opts);\n        this.secure =\n            null != opts.secure\n                ? opts.secure\n                : typeof location !== \"undefined\" && \"https:\" === location.protocol;\n        if (opts.hostname && !opts.port) {\n            // if no port is specified manually, use the protocol default\n            opts.port = this.secure ? \"443\" : \"80\";\n        }\n        this.hostname =\n            opts.hostname ||\n                (typeof location !== \"undefined\" ? location.hostname : \"localhost\");\n        this.port =\n            opts.port ||\n                (typeof location !== \"undefined\" && location.port\n                    ? location.port\n                    : this.secure\n                        ? \"443\"\n                        : \"80\");\n        this.transports = opts.transports || [\n            \"polling\",\n            \"websocket\",\n            \"webtransport\",\n        ];\n        this.writeBuffer = [];\n        this.prevBufferLen = 0;\n        this.opts = Object.assign({\n            path: \"/engine.io\",\n            agent: false,\n            withCredentials: false,\n            upgrade: true,\n            timestampParam: \"t\",\n            rememberUpgrade: false,\n            addTrailingSlash: true,\n            rejectUnauthorized: true,\n            perMessageDeflate: {\n                threshold: 1024,\n            },\n            transportOptions: {},\n            closeOnBeforeunload: false,\n        }, opts);\n        this.opts.path =\n            this.opts.path.replace(/\\/$/, \"\") +\n                (this.opts.addTrailingSlash ? \"/\" : \"\");\n        if (typeof this.opts.query === \"string\") {\n            this.opts.query = decode(this.opts.query);\n        }\n        // set on handshake\n        this.id = null;\n        this.upgrades = null;\n        this.pingInterval = null;\n        this.pingTimeout = null;\n        // set on heartbeat\n        this.pingTimeoutTimer = null;\n        if (typeof addEventListener === \"function\") {\n            if (this.opts.closeOnBeforeunload) {\n                // Firefox closes the connection when the \"beforeunload\" event is emitted but not Chrome. This event listener\n                // ensures every browser behaves the same (no \"disconnect\" event at the Socket.IO level when the page is\n                // closed/reloaded)\n                this.beforeunloadEventListener = () => {\n                    if (this.transport) {\n                        // silently close the transport\n                        this.transport.removeAllListeners();\n                        this.transport.close();\n                    }\n                };\n                addEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n            }\n            if (this.hostname !== \"localhost\") {\n                this.offlineEventListener = () => {\n                    this.onClose(\"transport close\", {\n                        description: \"network connection lost\",\n                    });\n                };\n                addEventListener(\"offline\", this.offlineEventListener, false);\n            }\n        }\n        this.open();\n    }\n    /**\n     * Creates transport of the given type.\n     *\n     * @param {String} name - transport name\n     * @return {Transport}\n     * @private\n     */\n    createTransport(name) {\n        const query = Object.assign({}, this.opts.query);\n        // append engine.io protocol identifier\n        query.EIO = protocol;\n        // transport name\n        query.transport = name;\n        // session id if we already have one\n        if (this.id)\n            query.sid = this.id;\n        const opts = Object.assign({}, this.opts, {\n            query,\n            socket: this,\n            hostname: this.hostname,\n            secure: this.secure,\n            port: this.port,\n        }, this.opts.transportOptions[name]);\n        return new transports[name](opts);\n    }\n    /**\n     * Initializes transport to use and starts probe.\n     *\n     * @private\n     */\n    open() {\n        let transport;\n        if (this.opts.rememberUpgrade &&\n            Socket.priorWebsocketSuccess &&\n            this.transports.indexOf(\"websocket\") !== -1) {\n            transport = \"websocket\";\n        }\n        else if (0 === this.transports.length) {\n            // Emit error on next tick so it can be listened to\n            this.setTimeoutFn(() => {\n                this.emitReserved(\"error\", \"No transports available\");\n            }, 0);\n            return;\n        }\n        else {\n            transport = this.transports[0];\n        }\n        this.readyState = \"opening\";\n        // Retry with the next transport if the transport is disabled (jsonp: false)\n        try {\n            transport = this.createTransport(transport);\n        }\n        catch (e) {\n            this.transports.shift();\n            this.open();\n            return;\n        }\n        transport.open();\n        this.setTransport(transport);\n    }\n    /**\n     * Sets the current transport. Disables the existing one (if any).\n     *\n     * @private\n     */\n    setTransport(transport) {\n        if (this.transport) {\n            this.transport.removeAllListeners();\n        }\n        // set up transport\n        this.transport = transport;\n        // set up transport listeners\n        transport\n            .on(\"drain\", this.onDrain.bind(this))\n            .on(\"packet\", this.onPacket.bind(this))\n            .on(\"error\", this.onError.bind(this))\n            .on(\"close\", (reason) => this.onClose(\"transport close\", reason));\n    }\n    /**\n     * Probes a transport.\n     *\n     * @param {String} name - transport name\n     * @private\n     */\n    probe(name) {\n        let transport = this.createTransport(name);\n        let failed = false;\n        Socket.priorWebsocketSuccess = false;\n        const onTransportOpen = () => {\n            if (failed)\n                return;\n            transport.send([{ type: \"ping\", data: \"probe\" }]);\n            transport.once(\"packet\", (msg) => {\n                if (failed)\n                    return;\n                if (\"pong\" === msg.type && \"probe\" === msg.data) {\n                    this.upgrading = true;\n                    this.emitReserved(\"upgrading\", transport);\n                    if (!transport)\n                        return;\n                    Socket.priorWebsocketSuccess = \"websocket\" === transport.name;\n                    this.transport.pause(() => {\n                        if (failed)\n                            return;\n                        if (\"closed\" === this.readyState)\n                            return;\n                        cleanup();\n                        this.setTransport(transport);\n                        transport.send([{ type: \"upgrade\" }]);\n                        this.emitReserved(\"upgrade\", transport);\n                        transport = null;\n                        this.upgrading = false;\n                        this.flush();\n                    });\n                }\n                else {\n                    const err = new Error(\"probe error\");\n                    // @ts-ignore\n                    err.transport = transport.name;\n                    this.emitReserved(\"upgradeError\", err);\n                }\n            });\n        };\n        function freezeTransport() {\n            if (failed)\n                return;\n            // Any callback called by transport should be ignored since now\n            failed = true;\n            cleanup();\n            transport.close();\n            transport = null;\n        }\n        // Handle any error that happens while probing\n        const onerror = (err) => {\n            const error = new Error(\"probe error: \" + err);\n            // @ts-ignore\n            error.transport = transport.name;\n            freezeTransport();\n            this.emitReserved(\"upgradeError\", error);\n        };\n        function onTransportClose() {\n            onerror(\"transport closed\");\n        }\n        // When the socket is closed while we're probing\n        function onclose() {\n            onerror(\"socket closed\");\n        }\n        // When the socket is upgraded while we're probing\n        function onupgrade(to) {\n            if (transport && to.name !== transport.name) {\n                freezeTransport();\n            }\n        }\n        // Remove all listeners on the transport and on self\n        const cleanup = () => {\n            transport.removeListener(\"open\", onTransportOpen);\n            transport.removeListener(\"error\", onerror);\n            transport.removeListener(\"close\", onTransportClose);\n            this.off(\"close\", onclose);\n            this.off(\"upgrading\", onupgrade);\n        };\n        transport.once(\"open\", onTransportOpen);\n        transport.once(\"error\", onerror);\n        transport.once(\"close\", onTransportClose);\n        this.once(\"close\", onclose);\n        this.once(\"upgrading\", onupgrade);\n        if (this.upgrades.indexOf(\"webtransport\") !== -1 &&\n            name !== \"webtransport\") {\n            // favor WebTransport\n            this.setTimeoutFn(() => {\n                if (!failed) {\n                    transport.open();\n                }\n            }, 200);\n        }\n        else {\n            transport.open();\n        }\n    }\n    /**\n     * Called when connection is deemed open.\n     *\n     * @private\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        Socket.priorWebsocketSuccess = \"websocket\" === this.transport.name;\n        this.emitReserved(\"open\");\n        this.flush();\n        // we check for `readyState` in case an `open`\n        // listener already closed the socket\n        if (\"open\" === this.readyState && this.opts.upgrade) {\n            let i = 0;\n            const l = this.upgrades.length;\n            for (; i < l; i++) {\n                this.probe(this.upgrades[i]);\n            }\n        }\n    }\n    /**\n     * Handles a packet.\n     *\n     * @private\n     */\n    onPacket(packet) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            this.emitReserved(\"packet\", packet);\n            // Socket is live - any packet counts\n            this.emitReserved(\"heartbeat\");\n            this.resetPingTimeout();\n            switch (packet.type) {\n                case \"open\":\n                    this.onHandshake(JSON.parse(packet.data));\n                    break;\n                case \"ping\":\n                    this.sendPacket(\"pong\");\n                    this.emitReserved(\"ping\");\n                    this.emitReserved(\"pong\");\n                    break;\n                case \"error\":\n                    const err = new Error(\"server error\");\n                    // @ts-ignore\n                    err.code = packet.data;\n                    this.onError(err);\n                    break;\n                case \"message\":\n                    this.emitReserved(\"data\", packet.data);\n                    this.emitReserved(\"message\", packet.data);\n                    break;\n            }\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon handshake completion.\n     *\n     * @param {Object} data - handshake obj\n     * @private\n     */\n    onHandshake(data) {\n        this.emitReserved(\"handshake\", data);\n        this.id = data.sid;\n        this.transport.query.sid = data.sid;\n        this.upgrades = this.filterUpgrades(data.upgrades);\n        this.pingInterval = data.pingInterval;\n        this.pingTimeout = data.pingTimeout;\n        this.maxPayload = data.maxPayload;\n        this.onOpen();\n        // In case open handler closes socket\n        if (\"closed\" === this.readyState)\n            return;\n        this.resetPingTimeout();\n    }\n    /**\n     * Sets and resets ping timeout timer based on server pings.\n     *\n     * @private\n     */\n    resetPingTimeout() {\n        this.clearTimeoutFn(this.pingTimeoutTimer);\n        this.pingTimeoutTimer = this.setTimeoutFn(() => {\n            this.onClose(\"ping timeout\");\n        }, this.pingInterval + this.pingTimeout);\n        if (this.opts.autoUnref) {\n            this.pingTimeoutTimer.unref();\n        }\n    }\n    /**\n     * Called on `drain` event\n     *\n     * @private\n     */\n    onDrain() {\n        this.writeBuffer.splice(0, this.prevBufferLen);\n        // setting prevBufferLen = 0 is very important\n        // for example, when upgrading, upgrade packet is sent over,\n        // and a nonzero prevBufferLen could cause problems on `drain`\n        this.prevBufferLen = 0;\n        if (0 === this.writeBuffer.length) {\n            this.emitReserved(\"drain\");\n        }\n        else {\n            this.flush();\n        }\n    }\n    /**\n     * Flush write buffers.\n     *\n     * @private\n     */\n    flush() {\n        if (\"closed\" !== this.readyState &&\n            this.transport.writable &&\n            !this.upgrading &&\n            this.writeBuffer.length) {\n            const packets = this.getWritablePackets();\n            this.transport.send(packets);\n            // keep track of current length of writeBuffer\n            // splice writeBuffer and callbackBuffer on `drain`\n            this.prevBufferLen = packets.length;\n            this.emitReserved(\"flush\");\n        }\n    }\n    /**\n     * Ensure the encoded size of the writeBuffer is below the maxPayload value sent by the server (only for HTTP\n     * long-polling)\n     *\n     * @private\n     */\n    getWritablePackets() {\n        const shouldCheckPayloadSize = this.maxPayload &&\n            this.transport.name === \"polling\" &&\n            this.writeBuffer.length > 1;\n        if (!shouldCheckPayloadSize) {\n            return this.writeBuffer;\n        }\n        let payloadSize = 1; // first packet type\n        for (let i = 0; i < this.writeBuffer.length; i++) {\n            const data = this.writeBuffer[i].data;\n            if (data) {\n                payloadSize += byteLength(data);\n            }\n            if (i > 0 && payloadSize > this.maxPayload) {\n                return this.writeBuffer.slice(0, i);\n            }\n            payloadSize += 2; // separator + packet type\n        }\n        return this.writeBuffer;\n    }\n    /**\n     * Sends a message.\n     *\n     * @param {String} msg - message.\n     * @param {Object} options.\n     * @param {Function} callback function.\n     * @return {Socket} for chaining.\n     */\n    write(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    send(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param {String} type: packet type.\n     * @param {String} data.\n     * @param {Object} options.\n     * @param {Function} fn - callback function.\n     * @private\n     */\n    sendPacket(type, data, options, fn) {\n        if (\"function\" === typeof data) {\n            fn = data;\n            data = undefined;\n        }\n        if (\"function\" === typeof options) {\n            fn = options;\n            options = null;\n        }\n        if (\"closing\" === this.readyState || \"closed\" === this.readyState) {\n            return;\n        }\n        options = options || {};\n        options.compress = false !== options.compress;\n        const packet = {\n            type: type,\n            data: data,\n            options: options,\n        };\n        this.emitReserved(\"packetCreate\", packet);\n        this.writeBuffer.push(packet);\n        if (fn)\n            this.once(\"flush\", fn);\n        this.flush();\n    }\n    /**\n     * Closes the connection.\n     */\n    close() {\n        const close = () => {\n            this.onClose(\"forced close\");\n            this.transport.close();\n        };\n        const cleanupAndClose = () => {\n            this.off(\"upgrade\", cleanupAndClose);\n            this.off(\"upgradeError\", cleanupAndClose);\n            close();\n        };\n        const waitForUpgrade = () => {\n            // wait for upgrade to finish since we can't send packets while pausing a transport\n            this.once(\"upgrade\", cleanupAndClose);\n            this.once(\"upgradeError\", cleanupAndClose);\n        };\n        if (\"opening\" === this.readyState || \"open\" === this.readyState) {\n            this.readyState = \"closing\";\n            if (this.writeBuffer.length) {\n                this.once(\"drain\", () => {\n                    if (this.upgrading) {\n                        waitForUpgrade();\n                    }\n                    else {\n                        close();\n                    }\n                });\n            }\n            else if (this.upgrading) {\n                waitForUpgrade();\n            }\n            else {\n                close();\n            }\n        }\n        return this;\n    }\n    /**\n     * Called upon transport error\n     *\n     * @private\n     */\n    onError(err) {\n        Socket.priorWebsocketSuccess = false;\n        this.emitReserved(\"error\", err);\n        this.onClose(\"transport error\", err);\n    }\n    /**\n     * Called upon transport close.\n     *\n     * @private\n     */\n    onClose(reason, description) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            // clear timers\n            this.clearTimeoutFn(this.pingTimeoutTimer);\n            // stop event from firing again for transport\n            this.transport.removeAllListeners(\"close\");\n            // ensure transport won't stay open\n            this.transport.close();\n            // ignore further transport communication\n            this.transport.removeAllListeners();\n            if (typeof removeEventListener === \"function\") {\n                removeEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n                removeEventListener(\"offline\", this.offlineEventListener, false);\n            }\n            // set ready state\n            this.readyState = \"closed\";\n            // clear session id\n            this.id = null;\n            // emit close event\n            this.emitReserved(\"close\", reason, description);\n            // clean buffers after, so users can still\n            // grab the buffers on `close` event\n            this.writeBuffer = [];\n            this.prevBufferLen = 0;\n        }\n    }\n    /**\n     * Filters upgrades, returning only those matching client transports.\n     *\n     * @param {Array} upgrades - server upgrades\n     * @private\n     */\n    filterUpgrades(upgrades) {\n        const filteredUpgrades = [];\n        let i = 0;\n        const j = upgrades.length;\n        for (; i < j; i++) {\n            if (~this.transports.indexOf(upgrades[i]))\n                filteredUpgrades.push(upgrades[i]);\n        }\n        return filteredUpgrades;\n    }\n}\nSocket.protocol = protocol;\n", "import { Socket } from \"./socket.js\";\nexport { Socket };\nexport const protocol = Socket.protocol;\nexport { Transport } from \"./transport.js\";\nexport { transports } from \"./transports/index.js\";\nexport { installTimerFunctions } from \"./util.js\";\nexport { parse } from \"./contrib/parseuri.js\";\nexport { nextTick } from \"./transports/websocket-constructor.js\";\n", "import { parse } from \"engine.io-client\";\n/**\n * URL parser.\n *\n * @param uri - url\n * @param path - the request path of the connection\n * @param loc - An object meant to mimic window.location.\n *        Defaults to window.location.\n * @public\n */\nexport function url(uri, path = \"\", loc) {\n    let obj = uri;\n    // default to window.location\n    loc = loc || (typeof location !== \"undefined\" && location);\n    if (null == uri)\n        uri = loc.protocol + \"//\" + loc.host;\n    // relative path support\n    if (typeof uri === \"string\") {\n        if (\"/\" === uri.charAt(0)) {\n            if (\"/\" === uri.charAt(1)) {\n                uri = loc.protocol + uri;\n            }\n            else {\n                uri = loc.host + uri;\n            }\n        }\n        if (!/^(https?|wss?):\\/\\//.test(uri)) {\n            if (\"undefined\" !== typeof loc) {\n                uri = loc.protocol + \"//\" + uri;\n            }\n            else {\n                uri = \"https://\" + uri;\n            }\n        }\n        // parse\n        obj = parse(uri);\n    }\n    // make sure we treat `localhost:80` and `localhost` equally\n    if (!obj.port) {\n        if (/^(http|ws)$/.test(obj.protocol)) {\n            obj.port = \"80\";\n        }\n        else if (/^(http|ws)s$/.test(obj.protocol)) {\n            obj.port = \"443\";\n        }\n    }\n    obj.path = obj.path || \"/\";\n    const ipv6 = obj.host.indexOf(\":\") !== -1;\n    const host = ipv6 ? \"[\" + obj.host + \"]\" : obj.host;\n    // define unique id\n    obj.id = obj.protocol + \"://\" + host + \":\" + obj.port + path;\n    // define href\n    obj.href =\n        obj.protocol +\n            \"://\" +\n            host +\n            (loc && loc.port === obj.port ? \"\" : \":\" + obj.port);\n    return obj;\n}\n", "import { Emitter } from \"@socket.io/component-emitter\";\nimport { deconstructPacket, reconstructPacket } from \"./binary.js\";\nimport { isBinary, hasBinary } from \"./is-binary.js\";\n/**\n * These strings must not be used as event names, as they have a special meaning.\n */\nconst RESERVED_EVENTS = [\n    \"connect\",\n    \"connect_error\",\n    \"disconnect\",\n    \"disconnecting\",\n    \"newListener\",\n    \"removeListener\", // used by the Node.js EventEmitter\n];\n/**\n * Protocol version.\n *\n * @public\n */\nexport const protocol = 5;\nexport var PacketType;\n(function (PacketType) {\n    PacketType[PacketType[\"CONNECT\"] = 0] = \"CONNECT\";\n    PacketType[PacketType[\"DISCONNECT\"] = 1] = \"DISCONNECT\";\n    PacketType[PacketType[\"EVENT\"] = 2] = \"EVENT\";\n    PacketType[PacketType[\"ACK\"] = 3] = \"ACK\";\n    PacketType[PacketType[\"CONNECT_ERROR\"] = 4] = \"CONNECT_ERROR\";\n    PacketType[PacketType[\"BINARY_EVENT\"] = 5] = \"BINARY_EVENT\";\n    PacketType[PacketType[\"BINARY_ACK\"] = 6] = \"BINARY_ACK\";\n})(PacketType || (PacketType = {}));\n/**\n * A socket.io Encoder instance\n */\nexport class Encoder {\n    /**\n     * Encoder constructor\n     *\n     * @param {function} replacer - custom replacer to pass down to JSON.parse\n     */\n    constructor(replacer) {\n        this.replacer = replacer;\n    }\n    /**\n     * Encode a packet as a single string if non-binary, or as a\n     * buffer sequence, depending on packet type.\n     *\n     * @param {Object} obj - packet object\n     */\n    encode(obj) {\n        if (obj.type === PacketType.EVENT || obj.type === PacketType.ACK) {\n            if (hasBinary(obj)) {\n                return this.encodeAsBinary({\n                    type: obj.type === PacketType.EVENT\n                        ? PacketType.BINARY_EVENT\n                        : PacketType.BINARY_ACK,\n                    nsp: obj.nsp,\n                    data: obj.data,\n                    id: obj.id,\n                });\n            }\n        }\n        return [this.encodeAsString(obj)];\n    }\n    /**\n     * Encode packet as string.\n     */\n    encodeAsString(obj) {\n        // first is type\n        let str = \"\" + obj.type;\n        // attachments if we have them\n        if (obj.type === PacketType.BINARY_EVENT ||\n            obj.type === PacketType.BINARY_ACK) {\n            str += obj.attachments + \"-\";\n        }\n        // if we have a namespace other than `/`\n        // we append it followed by a comma `,`\n        if (obj.nsp && \"/\" !== obj.nsp) {\n            str += obj.nsp + \",\";\n        }\n        // immediately followed by the id\n        if (null != obj.id) {\n            str += obj.id;\n        }\n        // json data\n        if (null != obj.data) {\n            str += JSON.stringify(obj.data, this.replacer);\n        }\n        return str;\n    }\n    /**\n     * Encode packet as 'buffer sequence' by removing blobs, and\n     * deconstructing packet into object with placeholders and\n     * a list of buffers.\n     */\n    encodeAsBinary(obj) {\n        const deconstruction = deconstructPacket(obj);\n        const pack = this.encodeAsString(deconstruction.packet);\n        const buffers = deconstruction.buffers;\n        buffers.unshift(pack); // add packet info to beginning of data list\n        return buffers; // write all the buffers\n    }\n}\n// see https://stackoverflow.com/questions/8511281/check-if-a-value-is-an-object-in-javascript\nfunction isObject(value) {\n    return Object.prototype.toString.call(value) === \"[object Object]\";\n}\n/**\n * A socket.io Decoder instance\n *\n * @return {Object} decoder\n */\nexport class Decoder extends Emitter {\n    /**\n     * Decoder constructor\n     *\n     * @param {function} reviver - custom reviver to pass down to JSON.stringify\n     */\n    constructor(reviver) {\n        super();\n        this.reviver = reviver;\n    }\n    /**\n     * Decodes an encoded packet string into packet JSON.\n     *\n     * @param {String} obj - encoded packet\n     */\n    add(obj) {\n        let packet;\n        if (typeof obj === \"string\") {\n            if (this.reconstructor) {\n                throw new Error(\"got plaintext data when reconstructing a packet\");\n            }\n            packet = this.decodeString(obj);\n            const isBinaryEvent = packet.type === PacketType.BINARY_EVENT;\n            if (isBinaryEvent || packet.type === PacketType.BINARY_ACK) {\n                packet.type = isBinaryEvent ? PacketType.EVENT : PacketType.ACK;\n                // binary packet's json\n                this.reconstructor = new BinaryReconstructor(packet);\n                // no attachments, labeled binary but no binary data to follow\n                if (packet.attachments === 0) {\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n            else {\n                // non-binary full packet\n                super.emitReserved(\"decoded\", packet);\n            }\n        }\n        else if (isBinary(obj) || obj.base64) {\n            // raw binary data\n            if (!this.reconstructor) {\n                throw new Error(\"got binary data when not reconstructing a packet\");\n            }\n            else {\n                packet = this.reconstructor.takeBinaryData(obj);\n                if (packet) {\n                    // received final buffer\n                    this.reconstructor = null;\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n        }\n        else {\n            throw new Error(\"Unknown type: \" + obj);\n        }\n    }\n    /**\n     * Decode a packet String (JSON data)\n     *\n     * @param {String} str\n     * @return {Object} packet\n     */\n    decodeString(str) {\n        let i = 0;\n        // look up type\n        const p = {\n            type: Number(str.charAt(0)),\n        };\n        if (PacketType[p.type] === undefined) {\n            throw new Error(\"unknown packet type \" + p.type);\n        }\n        // look up attachments if type binary\n        if (p.type === PacketType.BINARY_EVENT ||\n            p.type === PacketType.BINARY_ACK) {\n            const start = i + 1;\n            while (str.charAt(++i) !== \"-\" && i != str.length) { }\n            const buf = str.substring(start, i);\n            if (buf != Number(buf) || str.charAt(i) !== \"-\") {\n                throw new Error(\"Illegal attachments\");\n            }\n            p.attachments = Number(buf);\n        }\n        // look up namespace (if any)\n        if (\"/\" === str.charAt(i + 1)) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (\",\" === c)\n                    break;\n                if (i === str.length)\n                    break;\n            }\n            p.nsp = str.substring(start, i);\n        }\n        else {\n            p.nsp = \"/\";\n        }\n        // look up id\n        const next = str.charAt(i + 1);\n        if (\"\" !== next && Number(next) == next) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (null == c || Number(c) != c) {\n                    --i;\n                    break;\n                }\n                if (i === str.length)\n                    break;\n            }\n            p.id = Number(str.substring(start, i + 1));\n        }\n        // look up json data\n        if (str.charAt(++i)) {\n            const payload = this.tryParse(str.substr(i));\n            if (Decoder.isPayloadValid(p.type, payload)) {\n                p.data = payload;\n            }\n            else {\n                throw new Error(\"invalid payload\");\n            }\n        }\n        return p;\n    }\n    tryParse(str) {\n        try {\n            return JSON.parse(str, this.reviver);\n        }\n        catch (e) {\n            return false;\n        }\n    }\n    static isPayloadValid(type, payload) {\n        switch (type) {\n            case PacketType.CONNECT:\n                return isObject(payload);\n            case PacketType.DISCONNECT:\n                return payload === undefined;\n            case PacketType.CONNECT_ERROR:\n                return typeof payload === \"string\" || isObject(payload);\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                return (Array.isArray(payload) &&\n                    (typeof payload[0] === \"number\" ||\n                        (typeof payload[0] === \"string\" &&\n                            RESERVED_EVENTS.indexOf(payload[0]) === -1)));\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                return Array.isArray(payload);\n        }\n    }\n    /**\n     * Deallocates a parser's resources\n     */\n    destroy() {\n        if (this.reconstructor) {\n            this.reconstructor.finishedReconstruction();\n            this.reconstructor = null;\n        }\n    }\n}\n/**\n * A manager of a binary event's 'buffer sequence'. Should\n * be constructed whenever a packet of type BINARY_EVENT is\n * decoded.\n *\n * @param {Object} packet\n * @return {BinaryReconstructor} initialized reconstructor\n */\nclass BinaryReconstructor {\n    constructor(packet) {\n        this.packet = packet;\n        this.buffers = [];\n        this.reconPack = packet;\n    }\n    /**\n     * Method to be called when binary data received from connection\n     * after a BINARY_EVENT packet.\n     *\n     * @param {Buffer | ArrayBuffer} binData - the raw binary data received\n     * @return {null | Object} returns null if more binary data is expected or\n     *   a reconstructed packet object if all buffers have been received.\n     */\n    takeBinaryData(binData) {\n        this.buffers.push(binData);\n        if (this.buffers.length === this.reconPack.attachments) {\n            // done with buffer list\n            const packet = reconstructPacket(this.reconPack, this.buffers);\n            this.finishedReconstruction();\n            return packet;\n        }\n        return null;\n    }\n    /**\n     * Cleans up binary packet reconstruction variables.\n     */\n    finishedReconstruction() {\n        this.reconPack = null;\n        this.buffers = [];\n    }\n}\n", "const withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nconst isView = (obj) => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj.buffer instanceof ArrayBuffer;\n};\nconst toString = Object.prototype.toString;\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeFile = typeof File === \"function\" ||\n    (typeof File !== \"undefined\" &&\n        toString.call(File) === \"[object FileConstructor]\");\n/**\n * Returns true if obj is a Buffer, an ArrayBuffer, a Blob or a File.\n *\n * @private\n */\nexport function isBinary(obj) {\n    return ((withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj))) ||\n        (withNativeBlob && obj instanceof Blob) ||\n        (withNativeFile && obj instanceof File));\n}\nexport function hasBinary(obj, toJSON) {\n    if (!obj || typeof obj !== \"object\") {\n        return false;\n    }\n    if (Array.isArray(obj)) {\n        for (let i = 0, l = obj.length; i < l; i++) {\n            if (hasBinary(obj[i])) {\n                return true;\n            }\n        }\n        return false;\n    }\n    if (isBinary(obj)) {\n        return true;\n    }\n    if (obj.toJSON &&\n        typeof obj.toJSON === \"function\" &&\n        arguments.length === 1) {\n        return hasBinary(obj.toJSON(), true);\n    }\n    for (const key in obj) {\n        if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {\n            return true;\n        }\n    }\n    return false;\n}\n", "import { isBinary } from \"./is-binary.js\";\n/**\n * Replaces every Buffer | ArrayBuffer | Blob | File in packet with a numbered placeholder.\n *\n * @param {Object} packet - socket.io event packet\n * @return {Object} with deconstructed packet and list of buffers\n * @public\n */\nexport function deconstructPacket(packet) {\n    const buffers = [];\n    const packetData = packet.data;\n    const pack = packet;\n    pack.data = _deconstructPacket(packetData, buffers);\n    pack.attachments = buffers.length; // number of binary 'attachments'\n    return { packet: pack, buffers: buffers };\n}\nfunction _deconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (isBinary(data)) {\n        const placeholder = { _placeholder: true, num: buffers.length };\n        buffers.push(data);\n        return placeholder;\n    }\n    else if (Array.isArray(data)) {\n        const newData = new Array(data.length);\n        for (let i = 0; i < data.length; i++) {\n            newData[i] = _deconstructPacket(data[i], buffers);\n        }\n        return newData;\n    }\n    else if (typeof data === \"object\" && !(data instanceof Date)) {\n        const newData = {};\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                newData[key] = _deconstructPacket(data[key], buffers);\n            }\n        }\n        return newData;\n    }\n    return data;\n}\n/**\n * Reconstructs a binary packet from its placeholder packet and buffers\n *\n * @param {Object} packet - event packet with placeholders\n * @param {Array} buffers - binary buffers to put in placeholder positions\n * @return {Object} reconstructed packet\n * @public\n */\nexport function reconstructPacket(packet, buffers) {\n    packet.data = _reconstructPacket(packet.data, buffers);\n    delete packet.attachments; // no longer useful\n    return packet;\n}\nfunction _reconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (data && data._placeholder === true) {\n        const isIndexValid = typeof data.num === \"number\" &&\n            data.num >= 0 &&\n            data.num < buffers.length;\n        if (isIndexValid) {\n            return buffers[data.num]; // appropriate buffer (should be natural order anyway)\n        }\n        else {\n            throw new Error(\"illegal attachments\");\n        }\n    }\n    else if (Array.isArray(data)) {\n        for (let i = 0; i < data.length; i++) {\n            data[i] = _reconstructPacket(data[i], buffers);\n        }\n    }\n    else if (typeof data === \"object\") {\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                data[key] = _reconstructPacket(data[key], buffers);\n            }\n        }\n    }\n    return data;\n}\n", "export function on(obj, ev, fn) {\n    obj.on(ev, fn);\n    return function subDestroy() {\n        obj.off(ev, fn);\n    };\n}\n", "import { PacketType } from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\n/**\n * Internal events.\n * These events can't be emitted by the user.\n */\nconst RESERVED_EVENTS = Object.freeze({\n    connect: 1,\n    connect_error: 1,\n    disconnect: 1,\n    disconnecting: 1,\n    // EventEmitter reserved events: https://nodejs.org/api/events.html#events_event_newlistener\n    newListener: 1,\n    removeListener: 1,\n});\n/**\n * A Socket is the fundamental class for interacting with the server.\n *\n * A Socket belongs to a certain Namespace (by default /) and uses an underlying {@link Manager} to communicate.\n *\n * @example\n * const socket = io();\n *\n * socket.on(\"connect\", () => {\n *   console.log(\"connected\");\n * });\n *\n * // send an event to the server\n * socket.emit(\"foo\", \"bar\");\n *\n * socket.on(\"foobar\", () => {\n *   // an event was received from the server\n * });\n *\n * // upon disconnection\n * socket.on(\"disconnect\", (reason) => {\n *   console.log(`disconnected due to ${reason}`);\n * });\n */\nexport class Socket extends Emitter {\n    /**\n     * `Socket` constructor.\n     */\n    constructor(io, nsp, opts) {\n        super();\n        /**\n         * Whether the socket is currently connected to the server.\n         *\n         * @example\n         * const socket = io();\n         *\n         * socket.on(\"connect\", () => {\n         *   console.log(socket.connected); // true\n         * });\n         *\n         * socket.on(\"disconnect\", () => {\n         *   console.log(socket.connected); // false\n         * });\n         */\n        this.connected = false;\n        /**\n         * Whether the connection state was recovered after a temporary disconnection. In that case, any missed packets will\n         * be transmitted by the server.\n         */\n        this.recovered = false;\n        /**\n         * Buffer for packets received before the CONNECT packet\n         */\n        this.receiveBuffer = [];\n        /**\n         * Buffer for packets that will be sent once the socket is connected\n         */\n        this.sendBuffer = [];\n        /**\n         * The queue of packets to be sent with retry in case of failure.\n         *\n         * Packets are sent one by one, each waiting for the server acknowledgement, in order to guarantee the delivery order.\n         * @private\n         */\n        this._queue = [];\n        /**\n         * A sequence to generate the ID of the {@link QueuedPacket}.\n         * @private\n         */\n        this._queueSeq = 0;\n        this.ids = 0;\n        this.acks = {};\n        this.flags = {};\n        this.io = io;\n        this.nsp = nsp;\n        if (opts && opts.auth) {\n            this.auth = opts.auth;\n        }\n        this._opts = Object.assign({}, opts);\n        if (this.io._autoConnect)\n            this.open();\n    }\n    /**\n     * Whether the socket is currently disconnected\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"connect\", () => {\n     *   console.log(socket.disconnected); // false\n     * });\n     *\n     * socket.on(\"disconnect\", () => {\n     *   console.log(socket.disconnected); // true\n     * });\n     */\n    get disconnected() {\n        return !this.connected;\n    }\n    /**\n     * Subscribe to open, close and packet events\n     *\n     * @private\n     */\n    subEvents() {\n        if (this.subs)\n            return;\n        const io = this.io;\n        this.subs = [\n            on(io, \"open\", this.onopen.bind(this)),\n            on(io, \"packet\", this.onpacket.bind(this)),\n            on(io, \"error\", this.onerror.bind(this)),\n            on(io, \"close\", this.onclose.bind(this)),\n        ];\n    }\n    /**\n     * Whether the Socket will try to reconnect when its Manager connects or reconnects.\n     *\n     * @example\n     * const socket = io();\n     *\n     * console.log(socket.active); // true\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   if (reason === \"io server disconnect\") {\n     *     // the disconnection was initiated by the server, you need to manually reconnect\n     *     console.log(socket.active); // false\n     *   }\n     *   // else the socket will automatically try to reconnect\n     *   console.log(socket.active); // true\n     * });\n     */\n    get active() {\n        return !!this.subs;\n    }\n    /**\n     * \"Opens\" the socket.\n     *\n     * @example\n     * const socket = io({\n     *   autoConnect: false\n     * });\n     *\n     * socket.connect();\n     */\n    connect() {\n        if (this.connected)\n            return this;\n        this.subEvents();\n        if (!this.io[\"_reconnecting\"])\n            this.io.open(); // ensure open\n        if (\"open\" === this.io._readyState)\n            this.onopen();\n        return this;\n    }\n    /**\n     * Alias for {@link connect()}.\n     */\n    open() {\n        return this.connect();\n    }\n    /**\n     * Sends a `message` event.\n     *\n     * This method mimics the WebSocket.send() method.\n     *\n     * @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send\n     *\n     * @example\n     * socket.send(\"hello\");\n     *\n     * // this is equivalent to\n     * socket.emit(\"message\", \"hello\");\n     *\n     * @return self\n     */\n    send(...args) {\n        args.unshift(\"message\");\n        this.emit.apply(this, args);\n        return this;\n    }\n    /**\n     * Override `emit`.\n     * If the event is in `events`, it's emitted normally.\n     *\n     * @example\n     * socket.emit(\"hello\", \"world\");\n     *\n     * // all serializable datastructures are supported (no need to call JSON.stringify)\n     * socket.emit(\"hello\", 1, \"2\", { 3: [\"4\"], 5: Uint8Array.from([6]) });\n     *\n     * // with an acknowledgement from the server\n     * socket.emit(\"hello\", \"world\", (val) => {\n     *   // ...\n     * });\n     *\n     * @return self\n     */\n    emit(ev, ...args) {\n        if (RESERVED_EVENTS.hasOwnProperty(ev)) {\n            throw new Error('\"' + ev.toString() + '\" is a reserved event name');\n        }\n        args.unshift(ev);\n        if (this._opts.retries && !this.flags.fromQueue && !this.flags.volatile) {\n            this._addToQueue(args);\n            return this;\n        }\n        const packet = {\n            type: PacketType.EVENT,\n            data: args,\n        };\n        packet.options = {};\n        packet.options.compress = this.flags.compress !== false;\n        // event ack callback\n        if (\"function\" === typeof args[args.length - 1]) {\n            const id = this.ids++;\n            const ack = args.pop();\n            this._registerAckCallback(id, ack);\n            packet.id = id;\n        }\n        const isTransportWritable = this.io.engine &&\n            this.io.engine.transport &&\n            this.io.engine.transport.writable;\n        const discardPacket = this.flags.volatile && (!isTransportWritable || !this.connected);\n        if (discardPacket) {\n        }\n        else if (this.connected) {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        }\n        else {\n            this.sendBuffer.push(packet);\n        }\n        this.flags = {};\n        return this;\n    }\n    /**\n     * @private\n     */\n    _registerAckCallback(id, ack) {\n        var _a;\n        const timeout = (_a = this.flags.timeout) !== null && _a !== void 0 ? _a : this._opts.ackTimeout;\n        if (timeout === undefined) {\n            this.acks[id] = ack;\n            return;\n        }\n        // @ts-ignore\n        const timer = this.io.setTimeoutFn(() => {\n            delete this.acks[id];\n            for (let i = 0; i < this.sendBuffer.length; i++) {\n                if (this.sendBuffer[i].id === id) {\n                    this.sendBuffer.splice(i, 1);\n                }\n            }\n            ack.call(this, new Error(\"operation has timed out\"));\n        }, timeout);\n        this.acks[id] = (...args) => {\n            // @ts-ignore\n            this.io.clearTimeoutFn(timer);\n            ack.apply(this, [null, ...args]);\n        };\n    }\n    /**\n     * Emits an event and waits for an acknowledgement\n     *\n     * @example\n     * // without timeout\n     * const response = await socket.emitWithAck(\"hello\", \"world\");\n     *\n     * // with a specific timeout\n     * try {\n     *   const response = await socket.timeout(1000).emitWithAck(\"hello\", \"world\");\n     * } catch (err) {\n     *   // the server did not acknowledge the event in the given delay\n     * }\n     *\n     * @return a Promise that will be fulfilled when the server acknowledges the event\n     */\n    emitWithAck(ev, ...args) {\n        // the timeout flag is optional\n        const withErr = this.flags.timeout !== undefined || this._opts.ackTimeout !== undefined;\n        return new Promise((resolve, reject) => {\n            args.push((arg1, arg2) => {\n                if (withErr) {\n                    return arg1 ? reject(arg1) : resolve(arg2);\n                }\n                else {\n                    return resolve(arg1);\n                }\n            });\n            this.emit(ev, ...args);\n        });\n    }\n    /**\n     * Add the packet to the queue.\n     * @param args\n     * @private\n     */\n    _addToQueue(args) {\n        let ack;\n        if (typeof args[args.length - 1] === \"function\") {\n            ack = args.pop();\n        }\n        const packet = {\n            id: this._queueSeq++,\n            tryCount: 0,\n            pending: false,\n            args,\n            flags: Object.assign({ fromQueue: true }, this.flags),\n        };\n        args.push((err, ...responseArgs) => {\n            if (packet !== this._queue[0]) {\n                // the packet has already been acknowledged\n                return;\n            }\n            const hasError = err !== null;\n            if (hasError) {\n                if (packet.tryCount > this._opts.retries) {\n                    this._queue.shift();\n                    if (ack) {\n                        ack(err);\n                    }\n                }\n            }\n            else {\n                this._queue.shift();\n                if (ack) {\n                    ack(null, ...responseArgs);\n                }\n            }\n            packet.pending = false;\n            return this._drainQueue();\n        });\n        this._queue.push(packet);\n        this._drainQueue();\n    }\n    /**\n     * Send the first packet of the queue, and wait for an acknowledgement from the server.\n     * @param force - whether to resend a packet that has not been acknowledged yet\n     *\n     * @private\n     */\n    _drainQueue(force = false) {\n        if (!this.connected || this._queue.length === 0) {\n            return;\n        }\n        const packet = this._queue[0];\n        if (packet.pending && !force) {\n            return;\n        }\n        packet.pending = true;\n        packet.tryCount++;\n        this.flags = packet.flags;\n        this.emit.apply(this, packet.args);\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param packet\n     * @private\n     */\n    packet(packet) {\n        packet.nsp = this.nsp;\n        this.io._packet(packet);\n    }\n    /**\n     * Called upon engine `open`.\n     *\n     * @private\n     */\n    onopen() {\n        if (typeof this.auth == \"function\") {\n            this.auth((data) => {\n                this._sendConnectPacket(data);\n            });\n        }\n        else {\n            this._sendConnectPacket(this.auth);\n        }\n    }\n    /**\n     * Sends a CONNECT packet to initiate the Socket.IO session.\n     *\n     * @param data\n     * @private\n     */\n    _sendConnectPacket(data) {\n        this.packet({\n            type: PacketType.CONNECT,\n            data: this._pid\n                ? Object.assign({ pid: this._pid, offset: this._lastOffset }, data)\n                : data,\n        });\n    }\n    /**\n     * Called upon engine or manager `error`.\n     *\n     * @param err\n     * @private\n     */\n    onerror(err) {\n        if (!this.connected) {\n            this.emitReserved(\"connect_error\", err);\n        }\n    }\n    /**\n     * Called upon engine `close`.\n     *\n     * @param reason\n     * @param description\n     * @private\n     */\n    onclose(reason, description) {\n        this.connected = false;\n        delete this.id;\n        this.emitReserved(\"disconnect\", reason, description);\n    }\n    /**\n     * Called with socket packet.\n     *\n     * @param packet\n     * @private\n     */\n    onpacket(packet) {\n        const sameNamespace = packet.nsp === this.nsp;\n        if (!sameNamespace)\n            return;\n        switch (packet.type) {\n            case PacketType.CONNECT:\n                if (packet.data && packet.data.sid) {\n                    this.onconnect(packet.data.sid, packet.data.pid);\n                }\n                else {\n                    this.emitReserved(\"connect_error\", new Error(\"It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)\"));\n                }\n                break;\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                this.onevent(packet);\n                break;\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                this.onack(packet);\n                break;\n            case PacketType.DISCONNECT:\n                this.ondisconnect();\n                break;\n            case PacketType.CONNECT_ERROR:\n                this.destroy();\n                const err = new Error(packet.data.message);\n                // @ts-ignore\n                err.data = packet.data.data;\n                this.emitReserved(\"connect_error\", err);\n                break;\n        }\n    }\n    /**\n     * Called upon a server event.\n     *\n     * @param packet\n     * @private\n     */\n    onevent(packet) {\n        const args = packet.data || [];\n        if (null != packet.id) {\n            args.push(this.ack(packet.id));\n        }\n        if (this.connected) {\n            this.emitEvent(args);\n        }\n        else {\n            this.receiveBuffer.push(Object.freeze(args));\n        }\n    }\n    emitEvent(args) {\n        if (this._anyListeners && this._anyListeners.length) {\n            const listeners = this._anyListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, args);\n            }\n        }\n        super.emit.apply(this, args);\n        if (this._pid && args.length && typeof args[args.length - 1] === \"string\") {\n            this._lastOffset = args[args.length - 1];\n        }\n    }\n    /**\n     * Produces an ack callback to emit with an event.\n     *\n     * @private\n     */\n    ack(id) {\n        const self = this;\n        let sent = false;\n        return function (...args) {\n            // prevent double callbacks\n            if (sent)\n                return;\n            sent = true;\n            self.packet({\n                type: PacketType.ACK,\n                id: id,\n                data: args,\n            });\n        };\n    }\n    /**\n     * Called upon a server acknowlegement.\n     *\n     * @param packet\n     * @private\n     */\n    onack(packet) {\n        const ack = this.acks[packet.id];\n        if (\"function\" === typeof ack) {\n            ack.apply(this, packet.data);\n            delete this.acks[packet.id];\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon server connect.\n     *\n     * @private\n     */\n    onconnect(id, pid) {\n        this.id = id;\n        this.recovered = pid && this._pid === pid;\n        this._pid = pid; // defined only if connection state recovery is enabled\n        this.connected = true;\n        this.emitBuffered();\n        this.emitReserved(\"connect\");\n        this._drainQueue(true);\n    }\n    /**\n     * Emit buffered events (received and emitted).\n     *\n     * @private\n     */\n    emitBuffered() {\n        this.receiveBuffer.forEach((args) => this.emitEvent(args));\n        this.receiveBuffer = [];\n        this.sendBuffer.forEach((packet) => {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        });\n        this.sendBuffer = [];\n    }\n    /**\n     * Called upon server disconnect.\n     *\n     * @private\n     */\n    ondisconnect() {\n        this.destroy();\n        this.onclose(\"io server disconnect\");\n    }\n    /**\n     * Called upon forced client/server side disconnections,\n     * this method ensures the manager stops tracking us and\n     * that reconnections don't get triggered for this.\n     *\n     * @private\n     */\n    destroy() {\n        if (this.subs) {\n            // clean subscriptions to avoid reconnections\n            this.subs.forEach((subDestroy) => subDestroy());\n            this.subs = undefined;\n        }\n        this.io[\"_destroy\"](this);\n    }\n    /**\n     * Disconnects the socket manually. In that case, the socket will not try to reconnect.\n     *\n     * If this is the last active Socket instance of the {@link Manager}, the low-level connection will be closed.\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   // console.log(reason); prints \"io client disconnect\"\n     * });\n     *\n     * socket.disconnect();\n     *\n     * @return self\n     */\n    disconnect() {\n        if (this.connected) {\n            this.packet({ type: PacketType.DISCONNECT });\n        }\n        // remove socket from pool\n        this.destroy();\n        if (this.connected) {\n            // fire events\n            this.onclose(\"io client disconnect\");\n        }\n        return this;\n    }\n    /**\n     * Alias for {@link disconnect()}.\n     *\n     * @return self\n     */\n    close() {\n        return this.disconnect();\n    }\n    /**\n     * Sets the compress flag.\n     *\n     * @example\n     * socket.compress(false).emit(\"hello\");\n     *\n     * @param compress - if `true`, compresses the sending data\n     * @return self\n     */\n    compress(compress) {\n        this.flags.compress = compress;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the event message will be dropped when this socket is not\n     * ready to send messages.\n     *\n     * @example\n     * socket.volatile.emit(\"hello\"); // the server may or may not receive it\n     *\n     * @returns self\n     */\n    get volatile() {\n        this.flags.volatile = true;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the callback will be called with an error when the\n     * given number of milliseconds have elapsed without an acknowledgement from the server:\n     *\n     * @example\n     * socket.timeout(5000).emit(\"my-event\", (err) => {\n     *   if (err) {\n     *     // the server did not acknowledge the event in the given delay\n     *   }\n     * });\n     *\n     * @returns self\n     */\n    timeout(timeout) {\n        this.flags.timeout = timeout;\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * @example\n     * socket.onAny((event, ...args) => {\n     *   console.log(`got ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * @example\n     * socket.prependAny((event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * }\n     *\n     * socket.onAny(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAny(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAny();\n     *\n     * @param listener\n     */\n    offAny(listener) {\n        if (!this._anyListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAny() {\n        return this._anyListeners || [];\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.onAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.prependAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * }\n     *\n     * socket.onAnyOutgoing(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAnyOutgoing(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAnyOutgoing();\n     *\n     * @param [listener] - the catch-all listener (optional)\n     */\n    offAnyOutgoing(listener) {\n        if (!this._anyOutgoingListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyOutgoingListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyOutgoingListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAnyOutgoing() {\n        return this._anyOutgoingListeners || [];\n    }\n    /**\n     * Notify the listeners for each packet sent\n     *\n     * @param packet\n     *\n     * @private\n     */\n    notifyOutgoingListeners(packet) {\n        if (this._anyOutgoingListeners && this._anyOutgoingListeners.length) {\n            const listeners = this._anyOutgoingListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, packet.data);\n            }\n        }\n    }\n}\n", "/**\n * Initialize backoff timer with `opts`.\n *\n * - `min` initial timeout in milliseconds [100]\n * - `max` max timeout [10000]\n * - `jitter` [0]\n * - `factor` [2]\n *\n * @param {Object} opts\n * @api public\n */\nexport function Backoff(opts) {\n    opts = opts || {};\n    this.ms = opts.min || 100;\n    this.max = opts.max || 10000;\n    this.factor = opts.factor || 2;\n    this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;\n    this.attempts = 0;\n}\n/**\n * Return the backoff duration.\n *\n * @return {Number}\n * @api public\n */\nBackoff.prototype.duration = function () {\n    var ms = this.ms * Math.pow(this.factor, this.attempts++);\n    if (this.jitter) {\n        var rand = Math.random();\n        var deviation = Math.floor(rand * this.jitter * ms);\n        ms = (Math.floor(rand * 10) & 1) == 0 ? ms - deviation : ms + deviation;\n    }\n    return Math.min(ms, this.max) | 0;\n};\n/**\n * Reset the number of attempts.\n *\n * @api public\n */\nBackoff.prototype.reset = function () {\n    this.attempts = 0;\n};\n/**\n * Set the minimum duration\n *\n * @api public\n */\nBackoff.prototype.setMin = function (min) {\n    this.ms = min;\n};\n/**\n * Set the maximum duration\n *\n * @api public\n */\nBackoff.prototype.setMax = function (max) {\n    this.max = max;\n};\n/**\n * Set the jitter\n *\n * @api public\n */\nBackoff.prototype.setJitter = function (jitter) {\n    this.jitter = jitter;\n};\n", "import { Socket as Engine, installTimerFunctions, nextTick, } from \"engine.io-client\";\nimport { Socket } from \"./socket.js\";\nimport * as parser from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Backoff } from \"./contrib/backo2.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\nexport class Manager extends Emitter {\n    constructor(uri, opts) {\n        var _a;\n        super();\n        this.nsps = {};\n        this.subs = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = undefined;\n        }\n        opts = opts || {};\n        opts.path = opts.path || \"/socket.io\";\n        this.opts = opts;\n        installTimerFunctions(this, opts);\n        this.reconnection(opts.reconnection !== false);\n        this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);\n        this.reconnectionDelay(opts.reconnectionDelay || 1000);\n        this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);\n        this.randomizationFactor((_a = opts.randomizationFactor) !== null && _a !== void 0 ? _a : 0.5);\n        this.backoff = new Backoff({\n            min: this.reconnectionDelay(),\n            max: this.reconnectionDelayMax(),\n            jitter: this.randomizationFactor(),\n        });\n        this.timeout(null == opts.timeout ? 20000 : opts.timeout);\n        this._readyState = \"closed\";\n        this.uri = uri;\n        const _parser = opts.parser || parser;\n        this.encoder = new _parser.Encoder();\n        this.decoder = new _parser.Decoder();\n        this._autoConnect = opts.autoConnect !== false;\n        if (this._autoConnect)\n            this.open();\n    }\n    reconnection(v) {\n        if (!arguments.length)\n            return this._reconnection;\n        this._reconnection = !!v;\n        return this;\n    }\n    reconnectionAttempts(v) {\n        if (v === undefined)\n            return this._reconnectionAttempts;\n        this._reconnectionAttempts = v;\n        return this;\n    }\n    reconnectionDelay(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelay;\n        this._reconnectionDelay = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMin(v);\n        return this;\n    }\n    randomizationFactor(v) {\n        var _a;\n        if (v === undefined)\n            return this._randomizationFactor;\n        this._randomizationFactor = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setJitter(v);\n        return this;\n    }\n    reconnectionDelayMax(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelayMax;\n        this._reconnectionDelayMax = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMax(v);\n        return this;\n    }\n    timeout(v) {\n        if (!arguments.length)\n            return this._timeout;\n        this._timeout = v;\n        return this;\n    }\n    /**\n     * Starts trying to reconnect if reconnection is enabled and we have not\n     * started reconnecting yet\n     *\n     * @private\n     */\n    maybeReconnectOnOpen() {\n        // Only try to reconnect if it's the first time we're connecting\n        if (!this._reconnecting &&\n            this._reconnection &&\n            this.backoff.attempts === 0) {\n            // keeps reconnection from firing twice for the same reconnection loop\n            this.reconnect();\n        }\n    }\n    /**\n     * Sets the current transport `socket`.\n     *\n     * @param {Function} fn - optional, callback\n     * @return self\n     * @public\n     */\n    open(fn) {\n        if (~this._readyState.indexOf(\"open\"))\n            return this;\n        this.engine = new Engine(this.uri, this.opts);\n        const socket = this.engine;\n        const self = this;\n        this._readyState = \"opening\";\n        this.skipReconnect = false;\n        // emit `open`\n        const openSubDestroy = on(socket, \"open\", function () {\n            self.onopen();\n            fn && fn();\n        });\n        const onError = (err) => {\n            this.cleanup();\n            this._readyState = \"closed\";\n            this.emitReserved(\"error\", err);\n            if (fn) {\n                fn(err);\n            }\n            else {\n                // Only do this if there is no fn to handle the error\n                this.maybeReconnectOnOpen();\n            }\n        };\n        // emit `error`\n        const errorSub = on(socket, \"error\", onError);\n        if (false !== this._timeout) {\n            const timeout = this._timeout;\n            // set timer\n            const timer = this.setTimeoutFn(() => {\n                openSubDestroy();\n                onError(new Error(\"timeout\"));\n                socket.close();\n   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on(this.decoder, \"decoded\", this.ondecoded.bind(this)));\n    }\n    /**\n     * Called upon a ping.\n     *\n     * @private\n     */\n    onping() {\n        this.emitReserved(\"ping\");\n    }\n    /**\n     * Called with data.\n     *\n     * @private\n     */\n    ondata(data) {\n        try {\n            this.decoder.add(data);\n        }\n        catch (e) {\n            this.onclose(\"parse error\", e);\n        }\n    }\n    /**\n     * Called when parser fully decodes a packet.\n     *\n     * @private\n     */\n    ondecoded(packet) {\n        // the nextTick call prevents an exception in a user-provided event listener from triggering a disconnection due to a \"parse error\"\n        nextTick(() => {\n            this.emitReserved(\"packet\", packet);\n        }, this.setTimeoutFn);\n    }\n    /**\n     * Called upon socket error.\n     *\n     * @private\n     */\n    onerror(err) {\n        this.emitReserved(\"error\", err);\n    }\n    /**\n     * Creates a new socket for the given `nsp`.\n     *\n     * @return {Socket}\n     * @public\n     */\n    socket(nsp, opts) {\n        let socket = this.nsps[nsp];\n        if (!socket) {\n            socket = new Socket(this, nsp, opts);\n            this.nsps[nsp] = socket;\n        }\n        else if (this._autoConnect && !socket.active) {\n            socket.connect();\n        }\n        return socket;\n    }\n    /**\n     * Called upon a socket close.\n     *\n     * @param socket\n     * @private\n     */\n    _destroy(socket) {\n        const nsps = Object.keys(this.nsps);\n        for (const nsp of nsps) {\n            const socket = this.nsps[nsp];\n            if (socket.active) {\n                return;\n            }\n        }\n        this._close();\n    }\n    /**\n     * Writes a packet.\n     *\n     * @param packet\n     * @private\n     */\n    _packet(packet) {\n        const encodedPackets = this.encoder.encode(packet);\n        for (let i = 0; i < encodedPackets.length; i++) {\n            this.engine.write(encodedPackets[i], packet.options);\n        }\n    }\n    /**\n     * Clean up transport subscriptions and packet buffer.\n     *\n     * @private\n     */\n    cleanup() {\n        this.subs.forEach((subDestroy) => subDestroy());\n        this.subs.length = 0;\n        this.decoder.destroy();\n    }\n    /**\n     * Close the current socket.\n     *\n     * @private\n     */\n    _close() {\n        this.skipReconnect = true;\n        this._reconnecting = false;\n        this.onclose(\"forced close\");\n        if (this.engine)\n            this.engine.close();\n    }\n    /**\n     * Alias for close()\n     *\n     * @private\n     */\n    disconnect() {\n        return this._close();\n    }\n    /**\n     * Called upon engine close.\n     *\n     * @private\n     */\n    onclose(reason, description) {\n        this.cleanup();\n        this.backoff.reset();\n        this._readyState = \"closed\";\n        this.emitReserved(\"close\", reason, description);\n        if (this._reconnection && !this.skipReconnect) {\n            this.reconnect();\n        }\n    }\n    /**\n     * Attempt a reconnection.\n     *\n     * @private\n     */\n    reconnect() {\n        if (this._reconnecting || this.skipReconnect)\n            return this;\n        const self = this;\n        if (this.backoff.attempts >= this._reconnectionAttempts) {\n            this.backoff.reset();\n            this.emitReserved(\"reconnect_failed\");\n            this._reconnecting = false;\n        }\n        else {\n            const delay = this.backoff.duration();\n            this._reconnecting = true;\n            const timer = this.setTimeoutFn(() => {\n                if (self.skipReconnect)\n                    return;\n                this.emitReserved(\"reconnect_attempt\", self.backoff.attempts);\n                // check again for the case socket closed in above events\n                if (self.skipReconnect)\n                    return;\n                self.open((err) => {\n                    if (err) {\n                        self._reconnecting = false;\n                        self.reconnect();\n                        this.emitReserved(\"reconnect_error\", err);\n                    }\n                    else {\n                        self.onreconnect();\n                    }\n                });\n            }, delay);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n    }\n    /**\n     * Called upon successful reconnect.\n     *\n     * @private\n     */\n    onreconnect() {\n        const attempt = this.backoff.attempts;\n        this._reconnecting = false;\n        this.backoff.reset();\n        this.emitReserved(\"reconnect\", attempt);\n    }\n}\n", "import { url } from \"./url.js\";\nimport { Manager } from \"./manager.js\";\nimport { Socket } from \"./socket.js\";\n/**\n * Managers cache.\n */\nconst cache = {};\nfunction lookup(uri, opts) {\n    if (typeof uri === \"object\") {\n        opts = uri;\n        uri = undefined;\n    }\n    opts = opts || {};\n    const parsed = url(uri, opts.path || \"/socket.io\");\n    const source = parsed.source;\n    const id = parsed.id;\n    const path = parsed.path;\n    const sameNamespace = cache[id] && path in cache[id][\"nsps\"];\n    const newConnection = opts.forceNew ||\n        opts[\"force new connection\"] ||\n        false === opts.multiplex ||\n        sameNamespace;\n    let io;\n    if (newConnection) {\n        io = new Manager(source, opts);\n    }\n    else {\n        if (!cache[id]) {\n            cache[id] = new Manager(source, opts);\n        }\n        io = cache[id];\n    }\n    if (parsed.query && !opts.query) {\n        opts.query = parsed.queryKey;\n    }\n    return io.socket(parsed.path, opts);\n}\n// so that \"lookup\" can be used both as a function (e.g. `io(...)`) and as a\n// namespace (e.g. `io.connect(...)`), for backward compatibility\nObject.assign(lookup, {\n    Manager,\n    Socket,\n    io: lookup,\n    connect: lookup,\n});\n/**\n * Protocol version.\n *\n * @public\n */\nexport { protocol } from \"socket.io-parser\";\n/**\n * Expose constructors for standalone build.\n *\n * @public\n */\nexport { Manager, Socket, lookup as io, lookup as connect, lookup as default, };\n"],
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"receivedCtrlMsg", "txtToSend", "ioNamespace", "u", "t", "delay", "factor", "depth", "reason", "lookup", "options", "eMsg", "uibuilder", "uibuilder_module_default", "uibuilder", "UibVar"]
+  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        this._uiManager(msg)\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += msg.payload\n        if (ui.content) content += ui.content\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    // Namespaces - See https://stackoverflow.com/a/52572048/1309986\n    // const NAMESPACES = {\n    //     svg: 'http://www.w3.org/2000/svg',\n    //     html: 'http://www.w3.org/1999/xhtml',\n    //     xml: 'http://www.w3.org/XML/1998/namespace',\n    //     xlink: 'http://www.w3.org/1999/xlink',\n    //     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n    // }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n\n    } // --- end of _uiManager ---\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName !== null && propName !== '') {\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    // Nightmare of different object types in a DOM Element!\n                    if (prop.constructor.name === 'NamedNodeMap') { // Attributes\n                        const p = {}\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                        out.push(p)\n                    } else if (!prop.constructor.name.toLowerCase().includes('map')) { // Ordinary properties\n                        out.push({\n                            [propName]: prop\n                        })\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                        out.push(p)\n                    }\n                }\n\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n", "/* This is the Front-End JavaScript for uibuilder  in HTML Module form\n  It provides a number of global objects that can be used in your own javascript.\n  see the docs folder `./docs/uibuilder.module.md` for details of how to use this fully.\n\n  Please use the default index.js file for your own code and leave this as-is.\n  See Uib._meta for client version string\n\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n//#region --- Type Defs --- //\n/**\n * A string containing HTML markup\n * @typedef {string} html\n */\n//#endregion --- Type Defs --- //\n\n//#region --- We need the Socket.IO & ui libraries & the uib-var component  --- //\n// @ts-ignore - Note: Only works when using esbuild to bundle\nimport Ui from './ui'\nimport UibVar from '../components/uib-var'\nimport io from 'socket.io-client'\n\n// TODO - Maybe - check if already loaded as window['io']?\n// TODO - Maybe - Should this be moved to inside the class - would know the httpRoot then so less need to guess?\n// TODO           Or, could pull the cookie processing out of the class\n// const ioLocns = [ // Likely locations of the Socket.IO client library\n//     // Where it should normally be\n//     '../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and haven't changed httpNodeRoot\n//     '/uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and have changed httpNodeRoot\n//     '../../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Direct from the Internet - last ditch attempt\n//     'https://cdn.jsdelivr.net/npm/socket.io-client/+esm',\n// ]\n\n// let io\n// for (const locn of ioLocns) {\n//     try {\n//         ({ io } = await import(locn))\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library found at '${locn}'`)()\n//     } catch (e) {\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library not found at '${locn}'`)()\n//     }\n//     if (io) break\n// }\n// if (!io) log('error', 'uibuilder.module.js', 'Socket.IO client failed to load')()\n//#endregion -------- -------- -------- //\n\nconst version = '6.8.0-src'\n\n// TODO Add option to allow log events to be sent back to Node-RED as uib ctrl msgs\n//#region --- Module-level utility functions --- //\n\n// @ts-ignore Detect whether the loaded library is minified or not\nconst isMinified = !(/param/).test(function (param) { }) // eslint-disable-line no-unused-vars\n\n//#region --- print/console - debugging output functions --- //\n\n/** Default log level - Error & Warn */\nlet logLevel = isMinified ? 0 : 1  // When using minified lib, assume production and only log errors otherwise also log warn\n// function changeLogLevel(level) {\n//     logLevel = level\n//     console.trace = logLevel < 4 ? function(){} : console.trace\n//     console.debug = logLevel < 2 ? function(){} : console.debug\n//     if ( logLevel < 1 ) {\n//         console.log = console.group = console.groupEnd =  function(){}\n//     }\n// }\n\n// Experimental\nconst LOG_STYLES = {\n    // 0\n    error: {\n        css: 'background: red; color: black;',\n        txtCss: 'color: red; ',\n        pre: '\u26D4 ',\n        console: 'error',  // or trace\n    },\n    // 1\n    warn: {\n        css: 'background: darkorange; color: black;',\n        txtCss: 'color: darkorange; ',\n        pre: '\u26A0 ',\n        console: 'warn',\n    },\n    // 2\n    info: {\n        css: 'background: aqua; color: black;',\n        txtCss: 'color: aqua;',\n        pre: '\u2757 ',\n        console: 'info',\n    },\n    // 3\n    log: {\n        css: 'background: grey; color: yellow;',\n        txtCss: 'color: grey;',\n        pre: '',\n        console: 'log',\n    },\n    // 4\n    debug: {\n        css: 'background: chartreuse; color: black;',\n        txtCss: 'color: chartreuse;',\n        pre: '',\n        console: 'debug',\n    },\n    // 5\n    trace: {\n        css: 'background: indigo; color: yellow;',\n        txtCss: 'color: hotpink;',\n        pre: '',\n        console: 'log',\n    },\n\n    names: ['error', 'warn', 'info', 'log', 'debug', 'trace'],\n    reset: 'color: inherit;',\n    head: 'font-weight:bold; font-style:italic;',\n    level: 'font-weight:bold; border-radius: 3px; padding: 2px 5px; display:inline-block;',\n}\n/** Custom logging. e.g. log(2, 'here:there', 'jiminy', {fred:'jim'})()\n * @returns {Function} Log function @example log(2, 'here:there', 'jiminy', {fred:'jim'})()\n */\nfunction log() {\n    // Get the args\n    const args = Array.prototype.slice.call(arguments)\n\n    // 1st arg is the log level/type\n    let level = args.shift()\n    let strLevel\n    switch (level) {\n        case 'trace':\n        case 5: {\n            if (logLevel < 5) break\n            level = 5 // make sure level is numeric\n            strLevel = 'trace'\n            break\n        }\n\n        case 'debug':\n        case 4: {\n            if (logLevel < 4) break\n            level = 4\n            strLevel = 'debug'\n            break\n        }\n\n        case 'log':\n        case 3: {\n            if (logLevel < 3) break\n            level = 3\n            strLevel = 'log'\n            break\n        }\n\n        case 'info':\n        case '':\n        case 2: {\n            if (logLevel < 2) break\n            level = 2\n            strLevel = 'info'\n            break\n        }\n\n        case 'warn':\n        case 1: {\n            if (logLevel < 1) break\n            level = 1\n            strLevel = 'warn'\n            break\n        }\n\n        case 'error':\n        case 'err':\n        case 0: {\n            if (logLevel < 0) break\n            level = 0\n            strLevel = 'error'\n            break\n        }\n\n        default: {\n            level = -1\n            break\n        }\n\n    }\n\n    // If set to something unknown, no log output\n    if (strLevel === undefined) return function () { }\n\n    // 2nd arg is a heading that will be colour highlighted\n    const head = args.shift()\n\n    // Bind back to console.log (could use console[strLevel] but some levels ignore some formatting, use console.xxx directly or dedicated fn)\n    return Function.prototype.bind.call(\n        console[LOG_STYLES[strLevel].console],\n        console,\n        `%c${LOG_STYLES[strLevel].pre}${strLevel}%c [${head}]`, `${LOG_STYLES.level} ${LOG_STYLES[strLevel].css}`, `${LOG_STYLES.head} ${LOG_STYLES[strLevel].txtCss}`,\n        ...args\n    )\n}\n//#endregion\n\n/** A hack to dynamically load a remote module and wait until it is loaded\n * @param {string} url The URL of the module to load\n * @returns {object|null} Either the result object or null (if the load fails)\n */\n// function loadModule(url) { // eslint-disable-line no-unused-vars\n//     let done\n\n//     import(url)\n//         .then(res => {\n//             log('debug', '>> then >>', res)()\n//             done = res\n//         })\n//         .catch(err => {\n//             console.error(`[uibuilder:loadModule] Could not load module ${url}`, err)\n//             done = null\n//         })\n\n//     //  eslint-disable-next-line no-empty\n//     while (!done) { } // eslint-disable-line no-unmodified-loop-condition\n\n//     return done\n// }\n\n/** Makes a null or non-object into an object\n * If not null, moves \"thing\" to {payload:thing}\n *\n * @param {*} thing Thing to check\n * @param {string} [property='payload'] property that \"thing\" is moved to if not null and not an object\n * @returns {!object} _\n */\nfunction makeMeAnObject(thing, property) {\n    if (!property) property = 'payload'\n    if (typeof property !== 'string') {\n        log('warn', 'uibuilderfe:makeMeAnObject', `WARNING: property parameter must be a string and not: ${typeof property}`)()\n        property = 'payload'\n    }\n    let out = {}\n    if ( thing !== null && thing.constructor.name === 'Object' ) {\n        out = thing\n    } else if (thing !== null) {\n        out[property] = thing\n    }\n    return out\n} // --- End of make me an object --- //\n\n/** Joins all arguments as a URL string\n * see http://stackoverflow.com/a/28592528/3016654\n * since v1.0.10, fixed potential double // issue\n * arguments {string} URL fragments\n * @returns {string} _\n */\nfunction urlJoin() {\n    const paths = Array.prototype.slice.call(arguments)\n    const url = '/' + paths.map(function (e) {\n        return e.replace(/^\\/|\\/$/g, '')\n    })\n        .filter(function (e) {\n            return e\n        })\n        .join('/')\n    return url.replace('//', '/')\n} // ---- End of urlJoin ---- //\n\n/** Convert JSON to Syntax Highlighted HTML\n * @param {object} json A JSON/JavaScript Object\n * @returns {html} Object reformatted as highlighted HTML\n */\nfunction syntaxHighlight(json) {\n    if (json === undefined) {\n        json = '<span class=\"undefined\">undefined</span>'\n    } else {\n        try {\n            json = JSON.stringify(json, undefined, 4)\n            // json = json.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;') // eslint-disable-line newline-per-chained-call\n            json = json.replace(/(\"(\\\\u[a-zA-Z0-9]{4}|\\\\[^u]|[^\\\\\"])*\"(\\s*:)?|\\b(true|false|null)\\b|-?\\d+(?:\\.\\d*)?(?:[eE][+-]?\\d+)?)/g, function (match) { // eslint-disable-line prefer-named-capture-group\n                let cls = 'number'\n                if ((/^\"/).test(match)) {\n                    if ((/:$/).test(match)) {\n                        cls = 'key'\n                    } else {\n                        cls = 'string'\n                    }\n                } else if ((/true|false/).test(match)) {\n                    cls = 'boolean'\n                } else if ((/null/).test(match)) {\n                    cls = 'null'\n                }\n                return `<span class=\"${cls}\">${match}</span>`\n            })\n        } catch (e) {\n            json = `Syntax Highlight ERROR: ${e.message}`\n        }\n    }\n    return json\n}\n\n/** msg._ui handling functions */\nconst _ui = new Ui(window, log, syntaxHighlight)\n\n//#endregion --- Module-level utility functions --- //\n\n/** Define and export the Uib class - note that an instance of the class is also exported in the wrap-up\n * @typicalname uibuilder\n */\nexport const Uib = class Uib {\n\n    //#region --- Static variables ---\n    static _meta = {\n        version: version,\n        type: 'module',\n        displayName: 'uibuilder',\n    }\n    //#endregion ---- ---- ---- ----\n\n    //#region private class vars\n\n    // How many times has the loaded instance connected to Socket.IO (detect if not a new load?)\n    connectedNum = 0\n    // event listener callbacks by property name\n    // #events = {}\n    // Socket.IO channel names\n    _ioChannels = { control: 'uiBuilderControl', client: 'uiBuilderClient', server: 'uiBuilder' }\n    /** setInterval holder for pings @type {function|undefined} */\n    #pingInterval\n    // onChange event callbacks\n    #propChangeCallbacks = {}\n    // onTopic event callbacks\n    #msgRecvdByTopicCallbacks = {}\n    // Is Vue available?\n    isVue = false\n    // What version? Set in startup if Vue is loaded. Won't always work\n    vueVersion = undefined\n    /** setInterval id holder for Socket.IO checkConnect\n     * @type {number|null}\n     */\n    #timerid = null\n    // Holds the reference ID for the internal msg change event handler so that it can be cancelled\n    #MsgHandler\n    // Placeholder for io.socket - can't make a # var until # fns allowed in all browsers\n    _socket\n    // Placeholder for an observer that watches the whole DOM for changes - can't make a # var until # fns allowed in all browsers\n    _htmlObserver\n    // Has showMsg been turned on?\n    #isShowMsg = false\n    // Has showStatus been turned on?\n    #isShowStatus = false\n    // If true, URL hash changes send msg back to node-red. Controlled by watchUrlHash()\n    #sendUrlHash = false\n    // Externally accessible command functions (NB: Case must match) - remember to update _uibCommand for new commands\n    #extCommands = [\n        'elementExists', 'get', 'getManagedVarList', 'getWatchedVars', 'htmlSend', 'include',\n        'navigate', 'scrollTo', 'set', 'showMsg', 'showStatus', 'uiGet', 'uiWatch', 'watchUrlHash',\n    ]\n\n    /** @type {{[key: string]: string}} Managed uibuilder variables */\n    #managedVars = {}\n\n    // What status variables to show via showStatus()\n    #showStatus = {\n        online: { 'var': 'online', 'label': 'Online?', 'description': 'Is the browser online?', },\n        ioConnected: { 'var': 'ioConnected', 'label': 'Socket.IO connected?', 'description': 'Is Socket.IO connected?', },\n        connectedNum: { 'var': 'connectedNum', 'label': '# reconnections', 'description': 'How many times has Socket.IO had to reconnect since last page load?', },\n\n        clientId: { 'var': 'clientId', 'label': 'Client ID', 'description': 'Static client unique id set in Node-RED. Only changes when browser is restarted.', },\n        tabId: { 'var': 'tabId', 'label': 'Browser tab ID', 'description': 'Static unique id for the browser\\'s current tab', },\n        cookies: { 'var': 'cookies', 'label': 'Cookies', 'description': 'Cookies set in Node-RED', },\n        httpNodeRoot: { 'var': 'httpNodeRoot', 'label': 'httpNodeRoot', 'description': 'From Node-RED\\' settings.js, affects URL\\'s. May be wrong for pages in sub-folders', },\n        pageName: { 'var': 'pageName', 'label': 'Page name', 'description': 'Actual name of this page', },\n\n        ioNamespace: { 'var': 'ioNamespace', 'label': 'SIO namespace', 'description': 'Socket.IO namespace - unique to each uibuilder node instance', },\n        // ioPath: { 'var': 'ioPath', 'label': 'SIO path', 'description': '', }, // no longer needed in the modern client\n        socketError: { 'var': 'socketError', 'label': 'Socket error', 'description': 'If the Socket.IO connection has failed, says why', },\n\n        msgsSent: { 'var': 'msgsSent', 'label': '# msgs sent', 'description': 'How many standard messages have been sent to Node-RED?', },\n        msgsReceived: { 'var': 'msgsReceived', 'label': '# msgs received', 'description': 'How many standard messages have been received from Node-RED?', },\n        msgsSentCtrl: { 'var': 'msgsSentCtrl', 'label': '# control msgs sent', 'description': 'How many control messages have been sent to Node-RED?', },\n        msgsCtrlReceived: { 'var': 'msgsCtrlReceived', 'label': '# control msgs received', 'description': 'How many control messages have been received from Node-RED?', },\n        originator: { 'var': 'originator', 'label': 'Node Originator', 'description': 'If the last msg from Node-RED was from a `uib-sender` node, this will be its node id so that messasges can be returned to it', },\n        topic: { 'var': 'topic', 'label': 'Default topic', 'description': 'Optional default topic to be included in outgoing standard messages', },\n\n        started: { 'var': 'started', 'label': 'Has uibuilder client started?', 'description': 'Whether `uibuilder.start()` ran successfully. This should self-run and should not need to be run manually', },\n        version: { 'var': 'version', 'label': 'uibuilder client version', 'description': 'The version of the loaded uibuilder client library', },\n        serverTimeOffset: { 'var': 'serverTimeOffset', 'label': 'Server time offset (Hrs)', 'description': 'The number of hours difference between the Node-red server and the client', },\n    }\n\n    // Track ui observers (see uiWatch)\n    #uiObservers = {}\n\n    //#endregion\n\n    //#region public class vars\n\n    // TODO Move to proper getters\n    //#region ---- Externally read-only (via .get method) ---- //\n    // version - moved to _meta\n    /** Client ID set by uibuilder on connect */\n    clientId = ''\n    /** The collection of cookies provided by uibuilder */\n    cookies = {}\n    /** Copy of last control msg object received from sever */\n    ctrlMsg = {}\n    /** Is Socket.IO client connected to the server? */\n    ioConnected = false\n    // Is the browser tab containing this page visible or not?\n    isVisible = false\n    // Remember the last page (re)load/navigation type: navigate, reload, back_forward, prerender\n    lastNavType = ''\n    /** Last std msg received from Node-RED */\n    msg = {}\n    /** number of messages sent to server since page load */\n    msgsSent = 0\n    /** number of messages received from server since page load */\n    msgsReceived = 0\n    /** number of control messages sent to server since page load */\n    msgsSentCtrl = 0\n    /** number of control messages received from server since page load */\n    msgsCtrlReceived = 0\n    /** Is the client online or offline? */\n    online = navigator.onLine\n    /** last control msg object sent via uibuilder.send() @since v2.0.0-dev3 */\n    sentCtrlMsg = {}\n    /** last std msg object sent via uibuilder.send() */\n    sentMsg = {}\n    /** placeholder to track time offset from server, see fn socket.on(ioChannels.server ...) */\n    serverTimeOffset = null\n    /** placeholder for a socket error message */\n    socketError = null\n    // tab identifier from session storage\n    tabId = ''\n    // Actual name of current page (set in constructor)\n    pageName = null\n    // Is the DOMPurify library loaded? Updated in start()\n    purify = false\n    // Is the Markdown-IT library loaded? Updated in start()\n    markdown = false\n    // Current URL hash. Initial set is done from start->watchHashChanges via a set to make it watched\n    urlHash = location.hash\n    //#endregion ---- ---- ---- ---- //\n\n    // TODO Move to proper getters/setters\n    //#region ---- Externally Writable (via .set method, read via .get method) ---- //\n    /** Default originator node id - empty string by default\n     * @type {string}\n     */\n    originator = ''\n    /** Default topic - used by send if set and no topic provided\n     * @type {(string|undefined)}\n     */\n    topic = undefined\n    //#endregion ---- ---- ---- ---- //\n\n    //#region ---- These are unlikely to be needed externally: ----\n    autoSendReady = true\n    httpNodeRoot = '' // Node-RED setting (via cookie)\n    ioNamespace = ''\n    ioPath = ''\n    retryFactor = 1.5       // starting delay factor for subsequent reconnect attempts\n    retryMs = 2000          // starting retry ms period for manual socket reconnections workaround\n    storePrefix = 'uib_'    // Prefix for all uib-related localStorage\n    started = false\n    // NOTE: These can only change when a client (re)connects\n    socketOptions = {\n        path: this.ioPath,\n        transports: ['polling', 'websocket'],\n        // Using callback so that they are updated automatically on (re)connect\n        // Only put things in here that will be valid for a websocket connected session\n        auth: (cb) => {\n            cb({ // eslint-disable-line n/no-callback-literal\n                clientVersion: version,\n                clientId: this.clientId,\n                pathName: window.location.pathname,\n                urlParams: Object.fromEntries(new URLSearchParams(location.search)),\n                pageName: this.pageName,\n                tabId: this.tabId,\n                lastNavType: this.lastNavType,\n                connectedNum: ++this.connectedNum,\n                // Used to calculate the diff between the server and client connection timestamps - reported if >1 minute\n                browserConnectTimestamp: (new Date()).toISOString(),\n            })\n        },\n        transportOptions: {\n            // Can only set headers when polling\n            polling: {\n                extraHeaders: {\n                    'x-clientid': `${Uib._meta.displayName}; ${Uib._meta.type}; ${Uib._meta.version}; ${this.clientId}`,\n                }\n            },\n        },\n    }\n    //#endregion -- not external --\n\n    //#endregion --- End of variables ---\n\n    //#region ------- Getters and Setters ------- //\n\n    // Change logging level dynamically (affects both console. and print.)\n    set logLevel(level) { logLevel = level; console.log('%c\u2757 info%c [logLevel]', `${LOG_STYLES.level} ${LOG_STYLES.info.css}`, `${LOG_STYLES.head} ${LOG_STYLES.info.txtCss}`, `Set to ${level} (${LOG_STYLES.names[level]})`) /* changeLogLevel(level)*/ }\n    get logLevel() { return logLevel }\n\n    get meta() { return Uib._meta }\n\n    /** Function to set uibuilder properties to a new value - works on any property except _* or #*\n     * Also triggers any event listeners.\n     * Example: this.set('msg', {topic:'uibuilder', payload:42});\n     * @param {string} prop Any uibuilder property who's name does not start with a _ or #\n     * @param {*} val The set value of the property or a string declaring that a protected property cannot be changed\n     * @param {boolean} [store] If true, the variable is also saved to the browser localStorage if possible\n     * @param {boolean} [autoload] If true & store is true, on load, uib will try to restore the value from the store automatically\n     * @returns {*} Input value\n     */\n    set(prop, val, store = false, autoload = false) {\n        // Check for excluded properties - we don't want people to set these\n        // if (this.#excludedSet.indexOf(prop) !== -1) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:set', `Cannot use set() on protected property \"${prop}\"`)()\n            return `Cannot use set() on protected property \"${prop}\"`\n        }\n\n        // We must add the var to the uibuilder object\n        this[prop] = val\n\n        // Keep track of all managed variables\n        this.#managedVars[prop] = prop\n\n        // If requested, save to store\n        if (store === true) this.setStore(prop, val, autoload)\n\n        log('trace', 'Uib:set', `prop set - prop: ${prop}, val: `, val, ` store: ${store}, autoload: ${autoload}`)()\n\n        // Trigger this prop's event callbacks (listeners which are set by this.onChange)\n        // this.emit(prop, val)\n\n        // trigger an event on the prop name, pass both the name and value to the event details\n        this._dispatchCustomEvent('uibuilder:propertyChanged', { 'prop': prop, 'value': val, 'store': store, 'autoload': autoload })\n\n        return val\n    }\n\n    /** Function to get the value of a uibuilder property\n     * Example: uibuilder.get('msg')\n     * @param {string} prop The name of the property to get as long as it does not start with a _ or #\n     * @returns {*|undefined} The current value of the property\n     */\n    get(prop) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:get', `Cannot use get() on protected property \"${prop}\"`)()\n            return\n        }\n        if (prop === 'version') return Uib._meta.version\n        if (prop === 'msgsCtrl') return this.msgsCtrlReceived\n        if (prop === 'reconnections') return this.connectedNum\n        if (this[prop] === undefined) {\n            log('warn', 'Uib:get', `get() - property \"${prop}\" is undefined`)()\n        }\n        return this[prop]\n    }\n\n    /** Write to localStorage if possible. console error output if can't write\n     * Also uses this.storePrefix\n     * @example\n     *   uibuilder.setStore('fred', 42)\n     *   console.log(uibuilder.getStore('fred'))\n     * @param {string} id localStorage var name to be used (prefixed with 'uib_')\n     * @param {*} value value to write to localstore\n     * @param {boolean} [autoload] If true, on load, uib will try to restore the value from the store\n     * @returns {boolean} True if succeeded else false\n     */\n    setStore(id, value, autoload = false) {\n        let autoVars = {}\n        if (autoload === true) {\n            try {\n                autoVars = this.getStore('_uibAutoloadVars') || {}\n            } catch (e) {}\n        }\n        if (typeof value === 'object') {\n            try {\n                value = JSON.stringify(value)\n            } catch (e) {\n                log('error', 'Uib:setStore', 'Cannot stringify object, not storing. ', e)()\n                return false\n            }\n        }\n        try {\n            localStorage.setItem(this.storePrefix + id, value)\n            if (autoload) {\n                autoVars[id] = id\n                try {\n                    localStorage.setItem(this.storePrefix + '_uibAutoloadVars', JSON.stringify(autoVars))\n                } catch (e) {\n                    log('error', 'Uib:setStore', 'Cannot save autoload list. ', e)()\n                }\n            }\n            this._dispatchCustomEvent('uibuilder:propertyStored', { 'prop': id, 'value': value, 'autoload': autoload })\n            return true\n        } catch (e) {\n            log('error', 'Uib:setStore', 'Cannot write to localStorage. ', e)()\n            return false\n        }\n    } // --- end of setStore --- //\n\n    /** Attempt to get and re-hydrate a key value from localStorage\n     * Note that all uib storage is automatically prefixed using this.storePrefix\n     * @param {*} id The key of the value to attempt to retrieve\n     * @returns {*|null|undefined} The re-hydrated value of the key or null if key not found, undefined on error\n     */\n    getStore(id) {\n        try {\n            // @ts-ignore\n            return JSON.parse(localStorage.getItem(this.storePrefix + id))\n        } catch (e) { }\n        try {\n            return localStorage.getItem(this.storePrefix + id)\n        } catch (e) {\n            return undefined\n        }\n    }\n\n    /** Remove a given id from the uib keys in localStorage\n     * @param {*} id The key to remove\n     */\n    removeStore(id) {\n        try {\n            localStorage.removeItem(this.storePrefix + id)\n        } catch (e) { }\n    }\n\n    /** Returns a list of uibuilder properties (variables) that can be watched with onChange\n     * @returns {{[key: string]: string}} List of uibuilder managed variables\n     */\n    getManagedVarList() {\n        return this.#managedVars\n    }\n\n    getWatchedVars() {\n        return Object.keys(this.#propChangeCallbacks)\n    }\n\n    //#endregion ------- -------- ------- //\n\n    //#region ------- Our own event handling system ---------- //\n\n    // TODO Add option to send event details back to Node-RED as uib ctrl msg\n    /** Standard fn to create a custom event with details & dispatch it\n     * @param {string} title The event name\n     * @param {*} details Any details to pass to event output\n     */\n    _dispatchCustomEvent(title, details) {\n        const event = new CustomEvent(title, { detail: details })\n        document.dispatchEvent(event)\n    }\n\n    // See the this.#propChangeCallbacks & msgRecvdByTopicCallbacks private vars\n\n    /** Register on-change event listeners for uibuilder tracked properties\n     * Make it possible to register a function that will be run when the property changes.\n     * Note that you can create listeners for non-existant properties\n     * @example: uibuilder.onChange('msg', (msg) => { console.log('uibuilder.msg changed! It is now: ', msg) })\n     *\n     * @param {string} prop The property of uibuilder that we want to monitor\n     * @param {Function} callback The function that will run when the property changes, parameter is the new value of the property after change\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelChange if you need to remove a listener\n     */\n    onChange(prop, callback) {\n        // Note: Property does not have to exist yet\n\n        // console.debug(`[Uib:onchange] pushing new callback (event listener) for property: ${prop}`)\n\n        // Create a new array or add to the array of callback functions for the property in the events object\n        // if (this.#events[prop]) {\n        //     this.#events[prop].push(callback)\n        // } else {\n        //     this.#events[prop] = [callback]\n        // }\n\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#propChangeCallbacks[prop]) this.#propChangeCallbacks[prop] = { _nextRef: 1 }\n        else this.#propChangeCallbacks[prop]._nextRef++\n\n        const nextCbRef = this.#propChangeCallbacks[prop]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const propChangeCallback = this.#propChangeCallbacks[prop][nextCbRef] = function propChangeCallback(e) {\n            // If the prop name matches the 1st arg in the onChange fn:\n            if (prop === e.detail.prop) {\n                const value = e.detail.value\n                // console.warn('[Uib:onChange:evt] uibuilder:propertyChanged. ', e.detail)\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(value, value)\n            }\n        }\n\n        document.addEventListener('uibuilder:propertyChanged', propChangeCallback)\n\n        return nextCbRef\n    } // ---- End of onChange() ---- //\n\n    cancelChange(prop, cbRef) {\n        document.removeEventListener('uibuilder:propertyChanged', this.#propChangeCallbacks[prop][cbRef])\n        delete this.#propChangeCallbacks[prop][cbRef]\n        // this.#propChangeCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Register a change callback for a specific msg.topic\n     * Similar to onChange but more convenient if needing to differentiate by msg.topic.\n     * @example: let otRef = uibuilder.onTopic('mytopic', function(){ console.log('Received a msg with msg.topic=`mytopic`. msg: ', this) })\n     * To cancel a change listener: uibuilder.cancelTopic('mytopic', otRef)\n     *\n     * @param {string} topic The msg.topic we want to listen for\n     * @param {Function} callback The function that will run when an appropriate msg is received. `this` inside the callback as well as the cb's single argument is the received msg.\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelTopic if you need to remove a listener\n     */\n    onTopic(topic, callback) {\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#msgRecvdByTopicCallbacks[topic]) this.#msgRecvdByTopicCallbacks[topic] = { _nextRef: 1 }\n        else this.#msgRecvdByTopicCallbacks[topic]._nextRef++\n\n        const nextCbRef = this.#msgRecvdByTopicCallbacks[topic]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const msgRecvdEvtCallback = this.#msgRecvdByTopicCallbacks[topic][nextCbRef] = function msgRecvdEvtCallback(e) {\n            const msg = e.detail\n            // console.log('[Uib:onTopic:evt] uibuilder:stdMsgReceived where topic matches. ', e.detail)\n            if (msg.topic === topic) {\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(msg, msg)\n            }\n        }\n\n        document.addEventListener('uibuilder:stdMsgReceived', msgRecvdEvtCallback)\n\n        return nextCbRef\n    }\n\n    cancelTopic(topic, cbRef) {\n        document.removeEventListener('uibuilder:stdMsgReceived', this.#msgRecvdByTopicCallbacks[topic][cbRef])\n        delete this.#msgRecvdByTopicCallbacks[topic][cbRef]\n        // this.#msgRecvdCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Trigger event listener for a given property\n     * Called when uibuilder.set is used\n     *\n     * @param {*} prop The property for which to run the callback functions\n     * arguments: Additional arguments contain the value to pass to the event callback (e.g. newValue)\n     */\n    // emit(prop) {\n    //     var evt = this.#events[prop]\n    //     if (!evt) {\n    //         return\n    //     }\n    //     var args = Array.prototype.slice.call(arguments, 1)\n    //     for (var i = 0; i < evt.length; i++) {\n    //         evt[i].apply(this, args)\n    //     }\n    //     log('trace', 'Uib:emit', `${evt.length} listeners run for prop ${prop} `)()\n    // }\n\n    /** Forcibly removes all event listeners from the events array\n     * Use if you need to re-initialise the environment\n     */\n    // clearEventListeners() {\n    //     this.#events = []\n    // } // ---- End of clearEventListeners() ---- //\n\n    /** Clear a single property event listeners\n     * @param {string} prop The property of uibuilder for which we want to clear the event listener\n     */\n    // clearListener(prop) {\n    //     if (this.#events[prop]) delete this.#events[prop]\n    // }\n\n    //#endregion ---------- End of event handling system ---------- //\n\n    //#region ------- General Utility Functions -------- //\n\n    /** Check supplied msg from server for a timestamp - if received, work out & store difference to browser time\n     * @param {object} receivedMsg A message object recieved from Node-RED\n     * @returns {void} Updates self.serverTimeOffset if different to previous value\n     */\n    _checkTimestamp(receivedMsg) {\n        if (Object.prototype.hasOwnProperty.call(receivedMsg, 'serverTimestamp')) {\n            const serverTimestamp = new Date(receivedMsg.serverTimestamp)\n            // @ts-ignore\n            const offset = Math.round(((new Date()) - serverTimestamp) / 3600000) // in ms /3.6m to get hours\n            if (offset !== this.serverTimeOffset) {\n                log('trace', `Uib:checkTimestamp:${this._ioChannels.server} (server)`, `Offset changed to: ${offset} from: ${this.serverTimeOffset}`)()\n                this.set('serverTimeOffset', offset)\n            }\n        }\n    }\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {*} Selected HTML element or null\n     */\n    $(cssSelector) {\n        /** @type {*} Some kind of HTML element */\n        let el = document.querySelector(cssSelector)\n\n        if (!el) {\n            log(1, 'Uib:$', `No element found for CSS selector ${cssSelector}`)()\n            return null\n        }\n\n        if ( el.nodeName === 'TEMPLATE' ) {\n            el = el.content.firstElementChild\n            if (!el) {\n                log(0, 'Uib:$', `Template selected for CSS selector ${cssSelector} but it is empty`)()\n                return null\n            }\n        }\n\n        return el\n    }\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {*} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {Array} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$(cssSelector) {\n        return Array.from(document.querySelectorAll(cssSelector))\n    }\n\n    /** Set the default originator. Set to '' to ignore. Used with uib-sender.\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    setOriginator(originator = '') {\n        this.set('originator', originator)\n    } // ---- End of setOriginator ---- //\n\n    /** HTTP Ping/Keep-alive - makes a call back to uibuilder's ExpressJS server and receives a 204 response\n     * Can be used to keep sessions alive.\n     * @example\n     *   uibuilder.setPing(2000) // repeat every 2 sec. Re-issue with ping(0) to turn off repeat.\n     *   uibuilder.onChange('ping', function(data) {\n     *      console.log('pinger', data)\n     *   })\n     * @param {number} ms Repeat interval in ms\n     */\n    setPing(ms = 0) {\n        const oReq = new XMLHttpRequest()\n        oReq.addEventListener('load', () => {\n            const headers = (oReq.getAllResponseHeaders()).split('\\r\\n')\n            const elapsedTime = Number(new Date()) - Number((oReq.responseURL.split('='))[1])\n            this.set('ping', {\n                success: !!((oReq.status === 201) || (oReq.status === 204)), // true if one of the listed codes else false\n                status: oReq.status,\n                headers: headers,\n                url: oReq.responseURL,\n                elapsedTime: elapsedTime,\n            })\n        })\n\n        if (this.#pingInterval) {\n            clearInterval(this.#pingInterval)\n            this.#pingInterval = undefined\n        }\n\n        oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n        oReq.send()\n\n        if (ms > 0) {\n            this.#pingInterval = setInterval(() => {\n                oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n                oReq.send()\n            }, ms)\n        }\n    } // ---- End of ping ---- //\n\n    log() {\n        log(...arguments)()\n    }\n\n    /** Convert JSON to Syntax Highlighted HTML\n     * @param {object} json A JSON/JavaScript Object\n     * @returns {html} Object reformatted as highlighted HTML\n     */\n    syntaxHighlight(json) {\n        return syntaxHighlight(json)\n    } // --- End of syntaxHighlight --- //\n\n    /** Copies a uibuilder variable to the browser clipboard\n     * @param {string} varToCopy The name of the uibuilder variable to copy to the clipboard\n     */\n    copyToClipboard(varToCopy) {\n        let data = ''\n        try {\n            console.log(this.get(varToCopy), JSON.stringify(this.get(varToCopy)))\n            data = JSON.stringify(this.get(varToCopy))\n        } catch (e) {\n            log('error', 'copyToClipboard', `Could not copy \"${varToCopy}\" to clipboard.`, e.message)()\n        }\n        navigator.clipboard.writeText(data)\n    } // --- End of copyToClipboard --- //\n\n    /** DEPRECATED FOR NOW - wasn't working properly.\n     * Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.\n     * Requires IntersectionObserver (available to all mainstream browsers from early 2019)\n     * Automatically sends a msg back to Node-RED.\n     * Requires the element to already exist.\n     */\n    elementIsVisible() {\n        const info = 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'\n        log('error', 'uib:elementIsVisible', info)()\n        this.send({payload: 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'})\n        return false\n    } // --- End of elementIsVisible --- //\n\n    /** Does the chosen CSS Selector currently exist?\n     * Automatically sends a msg back to Node-RED unless turned off.\n     * @param {string} cssSelector Required. CSS Selector to examine for visibility\n     * @param {boolean} [msg] Optional, default=true. If true also sends a message back to Node-RED\n     * @returns {boolean} True if the element exists\n     */\n    elementExists(cssSelector, msg = true) {\n        const el = document.querySelector(cssSelector)\n\n        let exists = false\n        if (el !== null) exists = true\n\n        if (msg === true) {\n            this.send({\n                payload: exists,\n                info: `Element \"${cssSelector}\" ${exists ? 'exists' : 'does not exist'}`\n            })\n        }\n\n        return exists\n    } // --- End of elementExists --- //\n\n    /** Only keep the URL Hash & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return '#' + url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Set up an event listener to watch for hash changes\n     * and set the watchable urlHash variable\n     */\n    _watchHashChanges() {\n        this.set('urlHash', location.hash)\n        window.addEventListener('hashchange', (event) => {\n            this.set('urlHash', location.hash)\n            if (this.#sendUrlHash === true) {\n                this.send({ topic: 'hashChange', payload: location.hash, newHash: this.keepHashFromUrl(event.newURL), oldHash: this.keepHashFromUrl(event.oldURL) })\n            }\n        })\n    }\n\n    /** Returns true/false or a default value for truthy/falsy and other values\n     * @param {string|number|boolean|*} val The value to test\n     * @param {any} deflt Default value to use if the value is not truthy/falsy\n     * @returns {boolean|any} The truth! Or the default\n     */\n    truthy(val, deflt) {\n        let ret\n        if (['on', 'On', 'ON', 'true', 'True', 'TRUE', '1', true, 1].includes(val)) ret = true\n        else if (['off', 'Off', 'OFF', 'false', 'False', 'FALSE', '0', false, 0].includes(val)) ret = false\n        else ret = deflt\n        return ret\n    }\n\n    /** Turn on/off/toggle sending URL hash changes back to Node-RED\n     * @param {string|number|boolean|undefined} [toggle] Optional on/off/etc\n     * @returns {boolean} True if we will send a msg to Node-RED on a hash change\n     */\n    watchUrlHash(toggle) {\n        this.#sendUrlHash = this.truthy(toggle, this.#sendUrlHash !== true)\n        return this.#sendUrlHash\n    }\n\n    /** Navigate to a new page or a new route (hash)\n     * @param {string} url URL to navigate to. Can be absolute or relative (to current page) or just a hash for a route change\n     * @returns {Location} The new window.location string\n     */\n    navigate(url) {\n        if (url) window.location.href = url\n        return window.location\n    }\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- UI handlers --------- //\n\n    //#region -- Direct to _ui --\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        _ui.ui(json)\n    }\n\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        _ui.replaceSlot(el, component)\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        _ui.replaceSlotMarkdown(el, component)\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        return _ui.convertMarkdown(mdText)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        return _ui.sanitiseHTML(html)\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        _ui.loadScriptSrc(url)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        _ui.loadStyleSrc(url)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        _ui.loadScriptTxt(textFn)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        _ui.loadStyleTxt(textFn)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) {\n        _ui.showDialog(type, ui, msg)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        _ui.loadui(url)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        return _ui.uiGet(cssSelector, propName)\n    }\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     */\n    async include(url, uiOptions) {\n        _ui.include(url, uiOptions)\n    }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} component Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, component) {\n        _ui.uiEnhanceElement(el, component)\n    }\n\n    //#endregion -- direct to _ui --\n\n    /** * Show/hide a display card on the end of the visible HTML that will dynamically display the last incoming msg from Node-RED\n     * The card has the id `uib_last_msg`. Updates are done from a listener set up in the start function.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showMsg(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowMsg\n        this.#isShowMsg = showHide\n        let slot = 'Waiting for a message from Node-RED'\n\n        if (this.msg && Object.keys(this.msg).length > 0) {\n            slot = this.syntaxHighlight(this.msg)\n        }\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_last_msg_wrap',\n                ],\n            })\n        } else {\n            _ui._uiReplace({\n                components: [\n                    {\n                        type: 'div',\n                        id: 'uib_last_msg_wrap',\n                        parent: parent,\n                        attributes: {\n                            title: 'Last message from Node-RED',\n                        },\n                        components: [\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.copyToClipboard(\"msg\")',\n                                    class: 'compact',\n                                    style: 'right:3em;',\n                                },\n                                slot: '\uD83D\uDCCB',\n                            },\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.showMsg()',\n                                    class: 'compact',\n                                    style: 'right:.5em;',\n                                },\n                                slot: '\u26D4',\n                            },\n                            {\n                                type: 'pre',\n                                id: 'uib_last_msg',\n                                // parent: 'uib_last_msg_wrap',\n                                attributes: {\n                                    class: 'syntax-highlight',\n                                },\n                                slot: slot,\n                            },\n                        ],\n                    },\n                ],\n            })\n        }\n\n        return showHide\n    }\n\n    /** Show a browser notification if possible.\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * @example uibuilder.notify( 'My simple message to the user' )\n     * @example uibuilder.notify( {topic: 'My Title', payload: 'My simple message to the user'} )\n     * @example uibuilder.notify( {title: 'My Title', body: 'My simple message to the user'} )\n     * @example // If config.return = true, a promise is returned.\n     * // The resolved promise is only returned if the notification is clicked by the user.\n     * // Can be used to send the response back to Node-RED\n     * uibuilder.notify(notifyConfig).then( res => uibuilder.eventSend(res) )\n     * @ref https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config data or simple message string\n     * @returns {Promise<Event>|null} A promise that resolves to the click event or null\n     */\n    notify(config) {\n        if (config.return) return _ui.notification(config)\n\n        _ui.notification(config)\n            .then( res => { // eslint-disable-line promise/always-return\n                log('info', 'Uib:notification', 'Notification completed event', res)()\n                // if (config.return) return res\n            })\n            .catch( err => {\n                log('error', 'Uib:notification', 'Notification error event', err)()\n            })\n        return null\n    }\n\n    /** Scroll the page\n     * https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollIntoView\n     * @param {string} [cssSelector] Optional. If not set, scrolls to top of page.\n     * @param {{block:(string|undefined),inline:(string|undefined),behavior:(string|undefined)}} [opts] Optional. DOM scrollIntoView options\n     * @returns {boolean} True if element was found, false otherwise\n     */\n    scrollTo(cssSelector, opts) {\n        // @ts-ignore\n        if (!opts) opts = {}\n        if (!cssSelector || cssSelector === 'top'  || cssSelector === 'start') cssSelector = 'body'\n        else if (cssSelector === 'bottom' || cssSelector === 'end') {\n            cssSelector = 'body'\n            opts.block = 'end'\n        }\n        const el = this.$(cssSelector)\n        if (el) {\n            el.scrollIntoView(opts)\n            return true\n        }\n        return false\n    }\n\n    /** Show/hide a display card on the end of the visible HTML that will dynamically display the current status of the uibuilder client\n     * The card has the id `uib_status`.\n     * The display is updated by an event listener created in the class constructor.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showStatus(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowStatus\n        this.#isShowStatus = showHide\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_status',\n                ],\n            })\n            return showHide\n        }\n\n        const root = {\n            components: [\n                {\n                    type: 'div',\n                    id: 'uib_status',\n                    parent: parent,\n                    attributes: {\n                        title: 'Current status of the uibuilder client',\n                        class: 'text-smaller',\n                    },\n                    components: [\n                        {\n                            'type': 'table',\n                            'components': [\n                                {\n                                    'type': 'tbody',\n                                    'components': []\n                                }\n                            ]\n                        }\n                    ]\n                }\n            ]\n        }\n        const details = root.components[0].components[0].components[0].components\n\n        Object.values(this.#showStatus).forEach( entry => {\n            details.push({\n                'type': 'tr',\n                'attributes': {\n                    title: entry.description,\n                },\n                'components': [\n                    {\n                        'type': 'th',\n                        'slot': entry.label,\n                    },\n                    {\n                        'type': 'td',\n                        'attributes': {\n                            'data-varType': entry.var,\n                        },\n                        'slot': entry.var === 'version' ? Uib._meta.version : JSON.stringify(this[entry.var]),\n                    }\n                ],\n            })\n        })\n\n        _ui._uiReplace(root)\n\n        return showHide\n    }\n\n    /** Use the Mutation Observer browser API to watch for changes to a single element on the page.\n     * OMG! It is sooo hard to turn the data into something that successfully serialises so it can be sent back to Node-RED!\n     * NB: Each cssSelector creates a unique watcher. Sending the same selector overwrites the previous one.\n     * @param {string} cssSelector A CSS Selector that selects the element to watch for changes\n     * @param {boolean|\"toggle\"} [startStop] true=start watching the DOM, false=stop. Default='toggle'\n     * @param {boolean} [send] true=Send changes to Node-RED, false=Don't send. Default=true\n     * @param {boolean} [showLog] true=Output changes to log, false=stop. Default=true. Log level is 2 (Info)\n     * @returns {boolean} True if the watch is on, false otherwise\n     */\n    uiWatch(cssSelector, startStop = 'toggle', send = true, showLog = true) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.querySelector(cssSelector)\n        if (!targetNode) {\n            log('warn', 'uibuilder.module.js:uiWatch', `CSS Selector '${cssSelector}' not found.`)()\n            return false\n        }\n\n        if (startStop === 'toggle' || startStop === undefined || startStop === null) {\n            if (this.#uiObservers[cssSelector]) startStop = false\n            else startStop = true\n        }\n\n        // Need a ref to the Uib this\n        const that = this\n\n        if (startStop === true) {\n            // Create an observer instance\n            this.#uiObservers[cssSelector] = new MutationObserver( function( mutationList /* , observer */ ) {\n                const out = []\n\n                mutationList.forEach( mu => {\n                    // console.log({ mu })\n                    const oMu = {\n                        type: mu.type,\n                        oldValue: mu.oldValue !== null ? mu.oldValue : undefined,\n                    }\n\n                    if (mu.addedNodes.length > 0) {\n                        oMu.addedNodes = []\n                        mu.addedNodes.forEach( (an, i) => {\n                            oMu.addedNodes.push(_ui.nodeGet(mu.addedNodes[i]))\n                        })\n                    }\n\n                    if (mu.removedNodes.length > 0) {\n                        oMu.removedNodes = []\n                        mu.removedNodes.forEach( (an, i) => {\n                            oMu.removedNodes.push(_ui.nodeGet(mu.removedNodes[i]))\n                        })\n                    }\n\n                    if ( mu.type === 'attributes' ) {\n                        oMu.attributeName = mu.attributeName\n                        // @ts-ignore\n                        oMu.newValue = mu.target.attributes[mu.attributeName].value\n                    }\n\n                    out.push(oMu)\n                })\n\n                // Custom event\n                that._dispatchCustomEvent('uibuilder:domChange', out)\n                // Send a msg back to node-red\n                if (send === true) {\n                    that.send({\n                        _ui: {\n                            cssSelector: cssSelector,\n                            uiChanges: out\n                        },\n                        topic: that.topic || `DOM Changes for '${cssSelector}'`,\n                    })\n                }\n                // Log to info\n                if (showLog === true) {\n                    log('info', 'uibuilder.module.js:uiWatch', `DOM Changes for '${cssSelector}'`, { uiChanges: out }, { mutationList })()\n                }\n            } )\n\n            // Start observing the target node for configured mutations\n            this.#uiObservers[cssSelector].observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:uiWatch', `Started Watching DOM changes for '${cssSelector}'`)()\n        } else {\n            this.#uiObservers[cssSelector].disconnect()\n            delete this.#uiObservers[cssSelector]\n            log('trace', 'uibuilder.module.js:uiWatch', `Stopped Watching DOM changes for '${cssSelector}'`)()\n        }\n\n        return startStop\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- HTML cache and DOM watch --------- //\n\n    /** Clear the saved DOM from localStorage */\n    clearHtmlCache() {\n        this.removeStore('htmlCache')\n        log('trace', 'uibuilder.module.js:clearHtmlCache', 'HTML cache cleared')()\n    }\n\n    /** Restore the complete DOM (the whole web page) from browser localStorage if available */\n    restoreHtmlFromCache() {\n        // Is the html cached? If so, restore it\n        const htmlCache = this.getStore('htmlCache')\n        if (htmlCache) {\n            const targetNode = document.getElementsByTagName('html')[0]\n            // Restore the entire HTML\n            targetNode.innerHTML = htmlCache\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'Restored HTML from cache')()\n        } else {\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'No cache to restore')()\n        }\n    }\n\n    /** Save the current DOM state to browser localStorage.\n     * localStorage is persistent and so can be recovered even after a browser restart.\n     */\n    saveHtmlCache() {\n        // Save the updated entire HTML in localStorage\n        this.setStore('htmlCache', document.documentElement.innerHTML)\n    }\n\n    /** Use the Mutation Observer browser API to watch for and save changes to the HTML\n     * Once the observer is created, it will be reused.\n     * Sending true or undefined will turn on the observer, false turns it off.\n     * saveHtmlCache is called whenever anything changes in the dom. This allows\n     * users to call restoreHtmlFromCache() on page load if desired to completely reload\n     * to the last saved state.\n     * @param {boolean} startStop true=start watching the DOM, false=stop\n     */\n    watchDom(startStop) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.documentElement\n\n        // Need a ref to the Uib this\n        const that = this\n\n        // Create an observer instance\n        if (!this._htmlObserver) {\n            this._htmlObserver = new MutationObserver( function(/* mutationList, observer */) {\n                // We don't need to know the details - so kill off any outstanding mutation records\n                this.takeRecords()\n                // Save the updated entire HTML in localStorage\n                that.saveHtmlCache()\n            } )\n        }\n\n        if (startStop === true || startStop === undefined) {\n            // Start observing the target node for configured mutations\n            this._htmlObserver.observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:watchDom', 'Started Watching and saving DOM changes')()\n        } else {\n            this._htmlObserver.disconnect()\n            log('trace', 'uibuilder.module.js:watchDom', 'Stopped Watching and saving DOM changes')()\n        }\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- Message Handling (To/From Node-RED) -------- //\n\n    /** Internal send fn. Send a standard or control msg back to Node-RED via Socket.IO\n     * NR will generally expect the msg to contain a payload topic\n     * @param {object} msgToSend The msg object to send.\n     * @param {string} [channel=uiBuilderClient] The Socket.IO channel to use, must be in self.ioChannels or it will be ignored\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    _send(msgToSend, channel, originator = '') {\n        if (channel === null || channel === undefined) channel = this._ioChannels.client\n\n        // Make sure msgToSend is an object\n        if (channel === this._ioChannels.client) {\n            msgToSend = makeMeAnObject(msgToSend, 'payload')\n        } else if (channel === this._ioChannels.control) {\n            msgToSend = makeMeAnObject(msgToSend, 'uibuilderCtrl')\n            if (!Object.prototype.hasOwnProperty.call(msgToSend, 'uibuilderCtrl')) {\n                msgToSend.uibuilderCtrl = 'manual send'\n            }\n            // help remember where this came from as ctrl msgs can come from server or client\n            msgToSend.from = 'client'\n        }\n\n        /** since 2020-01-02 Added _socketId which should be the same as the _socketId on the server */\n        msgToSend._socketId = this._socket.id\n\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n\n        // Add the originator metadata if required\n        if (originator === '' && this.originator !== '') originator = this.originator\n        if (originator !== '') Object.assign(msgToSend, { '_uib': { 'originator': originator } })\n\n        // If the msg does not have a topic - see if we want to add one\n        if ( !Object.prototype.hasOwnProperty.call(msgToSend, 'topic') ) {\n            // From the default (`uibuilder.set('topic', 'some topic')`)\n            if (this.topic !== undefined && this.topic !== '') msgToSend.topic = this.topic\n            else {\n                // Did the last inbound msg have a topic?\n                if ( Object.prototype.hasOwnProperty.call(this, 'msg') && Object.prototype.hasOwnProperty.call(this.msg, 'topic') ) {\n                    msgToSend.topic = this.msg.topic\n                }\n            }\n        }\n\n        // If a standard send & _ui property exists, make sure to add _ui.from = 'client'\n        if (msgToSend._ui) msgToSend._ui.from = 'client'\n\n        // Track how many messages have been sent & last msg sent\n        let numMsgs\n        if (channel === this._ioChannels.client) {\n            this.set('sentMsg', msgToSend)\n            numMsgs = this.set('msgsSent', ++this.msgsSent)\n        } else if (channel === this._ioChannels.control) {\n            this.set('sentCtrlMsg', msgToSend)\n            numMsgs = this.set('msgsSentCtrl', ++this.msgsSentCtrl)\n        }\n        log('trace', 'Uib:_send', ` Channel '${channel}'. Sending msg #${numMsgs}`, msgToSend)()\n\n        this._socket.emit(channel, msgToSend)\n    } // --- End of Send Msg Fn --- //\n\n    /** Send a standard message to NR\n     * @example uibuilder.send({payload:'Hello'})\n     * @param {object} msg Message to send\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    send(msg, originator = '') {\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Send a control msg to NR\n     * @param {object} msg Message to send\n     */\n    sendCtrl(msg) {\n        this._send(msg, this._ioChannels.control)\n    }\n\n    /** Easily send a msg back to Node-RED on a DOM event\n     * @example In plain HTML/JavaScript\n     *    `<button id=\"button1\" name=\"button 1\" data-fred=\"jim\"></button>`\n     *    $('#button1').onclick = (evt) => {\n     *      uibuilder.eventSend(evt)\n     *    }\n     * @example\n     * In VueJS: `<b-button id=\"myButton1\" @click=\"doEvent\" data-something=\"hello\"></b-button>`\n     * In VueJS methods: `doEvent: uibuilder.eventSend,`\n     *\n     * All `data-` attributes will be passed back to Node-RED,\n     *    use them instead of arguments in the click function.\n     *    All target._ui custom properties are also passed back to Node-RED.\n     *\n     * @param {MouseEvent|any} domevent DOM Event object\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    eventSend(domevent, originator = '') { // eslint-disable-line sonarjs/cognitive-complexity\n        // @ts-ignore Handle case where vue messes up `this`\n        if ( this.$attrs ) {\n            log('error', 'Uib:eventSend', '`this` has been usurped by VueJS. Make sure that you wrap the call in a function: `doEvent: function (event) { uibuilder.eventSend(event) },`' )()\n            return\n        }\n        if (!domevent && !event) {\n            log('warn', 'Uib:eventSend', 'Neither the domevent nor the hidden event properties are set. You probably called this function directly rather than applying to an on click event.' )()\n            return\n        }\n        // Handle no argument, e.g. <button onClick=\"uibuilder.eventSend()\"> - event is a hidden variable when fn used in addEventListener\n        if (!domevent || !domevent.constructor) domevent = event\n\n        // The argument must be a DOM event\n        if ((!domevent.constructor.name.endsWith('Event')) || (!domevent.currentTarget)) {\n            log('warn', 'Uib:eventSend', `ARGUMENT NOT A DOM EVENT - use data attributes not function arguments to pass data. Arg Type: ${domevent.constructor.name}`, domevent)()\n            return\n        }\n\n        // Prevent default event action\n        domevent.preventDefault()\n\n        // The target element\n        const target = domevent.currentTarget\n\n        // Get target properties - only shows custom props not element default ones\n        const props = {}\n        Object.keys(target).forEach( key => {\n            if (key.startsWith('_')) return // Exclude private\n            props[key] = target[key]\n        })\n\n        // Attempt to get target attributs - can fail for certain target types\n        const ignoreAttribs = ['class', 'id', 'name']\n        let attribs\n        try {\n            attribs = Object.assign({},\n                ...Array.from(target.attributes,\n                    ( { name, value } ) => {\n                        if ( !ignoreAttribs.includes(name) ) {\n                            return ({ [name]: value })\n                        }\n                        return undefined\n                    }\n                )\n            )\n        } catch (e) {}\n\n        // If target embedded in a form, include the form data\n        let form\n        const frmVals = []\n        if ( target.form ) {\n            form = {}\n            form.valid = target.form.checkValidity()\n            Object.values(target.form).forEach( (frmEl, i) => {\n                const id = frmEl.id !== '' ? frmEl.id : (frmEl.name !== '' ? frmEl.name : `${i}-${frmEl.type}`)\n\n                // We must have both an element id (we may have forced one above) AND\n                // the element type MUST be not undefined - to allow for the extra properties added by frameworks such as Svelte\n                if (id !== '' && frmEl.type) {\n                    // Stupid HTML doesn't use value attrib for checkboxes. So override if value is set to default\n                    if ('checked' in frmEl && frmEl.value === 'on') frmEl.value = frmEl.checked.toString()\n\n                    frmVals.push( { key: id, val: frmEl.value } ) // simplified for addition to msg.payload\n\n                    form[id] = {\n                        'id': frmEl.id,\n                        'name': frmEl.name,\n                        'value': frmEl.value,\n                        'valid': frmEl.checkValidity(),\n                        'type': frmEl.type,\n                    }\n\n                    if (form[id].valid === false) {\n                        const v = frmEl.validity\n                        form[id].validity = {\n                            badInput: v.badInput === true ? v.badInput : undefined,\n                            customError: v.customError === true ? v.customError : undefined,\n                            patternMismatch: v.patternMismatch === true ? v.patternMismatch : undefined,\n                            rangeOverflow: v.rangeOverflow === true ? v.rangeOverflow : undefined,\n                            rangeUnderflow: v.rangeUnderflow === true ? v.rangeUnderflow : undefined,\n                            stepMismatch: v.stepMismatch === true ? v.stepMismatch : undefined,\n                            tooLong: v.tooLong === true ? v.tooLong : undefined,\n                            tooShort: v.tooShort === true ? v.tooShort : undefined,\n                            typeMismatch: v.typeMismatch === true ? v.typeMismatch : undefined,\n                            valueMissing: v.valueMissing === true ? v.valueMissing : undefined,\n                        }\n                    }\n\n                    if (frmEl.dataset) form[id].data = frmEl.dataset\n                }\n            })\n        }\n\n        // Check for CSS Classes\n        let classes\n        try {\n            classes = Array.from(target.classList)\n        } catch (e) {}\n\n        // Each `data-xxxx` attribute is added as a property\n        let payload = { ...target.dataset }\n\n        // Handle Notification events\n        let nprops\n        if ( Object.prototype.toString.call(target) === '[object Notification]') {\n            // Fixed payload for convenience\n            payload = `notification-${target.userAction}`\n            // Capture the notification properties\n            nprops = {\n                // userAction: target.userAction, // uib custom prop: click, close or error\n                actions: target.actions,\n                badge: target.badge,\n                body: target.body,\n                data: target.data,\n                dir: target.dir,\n                icon: target.icon,\n                image: target.image,\n                lang: target.lang,\n                renotify: target.renotify,\n                requireInteraction: target.requireInteraction,\n                silent: target.silent,\n                tag: target.tag,\n                timestamp: target.timestamp,\n                title: target.title,\n                vibrate: target.vibrate,\n            }\n        }\n        // console.log(Object.prototype.toString.call(target))\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            // - this may be an empty Object if no data attributes defined\n            payload: payload,\n\n            _ui: {\n                type: 'eventSend',\n                id: target.id !== '' ? target.id : undefined,\n                name: target.name !== '' ? target.name : undefined,\n                slotText: target.textContent ? target.textContent.substring(0, 255) : undefined,\n\n                form: form,\n                props: props,\n                attribs: attribs,\n                classes: classes,\n\n                notification: nprops,\n\n                event: domevent.type,\n                altKey: domevent.altKey,\n                ctrlKey: domevent.ctrlKey,\n                shiftKey: domevent.shiftKey,\n                metaKey: domevent.metaKey,\n\n                pointerType: domevent.pointerType,\n                nodeName: target.nodeName,\n\n                clientId: this.clientId,\n                pageName: this.pageName,\n                tabId: this.tabId,\n            }\n        }\n\n        if (frmVals.length > 0) {\n            frmVals.forEach( entry => {\n                msg.payload[entry.key] = entry.val\n            })\n        }\n\n        if (domevent.type === 'change') {\n            // Checkboxes don't have a value!!\n            msg._ui.newValue = msg.payload.value = 'checked' in target ? target.checked : domevent.target.value\n        }\n\n        log('trace', 'Uib:eventSend', 'Sending msg to Node-RED', msg)()\n        if (target.dataset && target.dataset.length === 0) log('warn', 'Uib:eventSend', 'No payload in msg. data-* attributes should be used.')()\n\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Easily send the entire DOM/HTML msg back to Node-RED\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     * @param {boolean} [send] If true (default) directly send response to Node-RED. Is false when calling from Node-RED as a command.\n     * @returns {string} The HTML as a string\n     */\n    htmlSend(originator = '', send = true) {\n        const out = `<!doctype html>\\n${document.documentElement.outerHTML}`\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            payload: out,\n            length: out.length,\n            topic: this.topic,\n        }\n\n        log('trace', 'Uib:htmlSend', 'Sending full HTML to Node-RED', msg)()\n\n        if (send === true) this._send(msg, this._ioChannels.client, originator)\n        return out\n    }\n\n    /** Process msg._uib.command - Remember to update #extCommands with new allowed commands\n     * @param {object} msg Msg from Node-RED containing a msg._uib object\n     */\n    _uibCommand(msg) {\n        if (!msg._uib || !msg._uib.command) {\n            log('error', 'uibuilder:_uibCommand', 'Invalid command message received', { msg })()\n            msg.payload = msg.error = 'Invalid command message received'\n            this.send(msg)\n            return\n        }\n        const cmd = msg._uib.command\n        // Disallowed command request outputs error and ignores the msg (NB: Case must match)\n        if (!this.#extCommands.includes(cmd.trim())) {\n            log('error', 'Uib:_uibCommand', `Command '${cmd} is not allowed to be called externally`)()\n            return\n        }\n        const prop = msg._uib.prop\n        const value = msg._uib.value\n        const quiet = msg._uib.quiet ?? false\n        let response, info\n\n        // Don't forget to update `#extCommands`, `docs/client-docs/control-from-node-red.md` & `functions.md`\n        switch (cmd) {\n            case 'elementIsVisible': {\n                response = this.elementIsVisible(prop)\n                // info = `Element \"${prop}\" ${response ? 'is visible' : 'is not visible'}`\n                break\n            }\n\n            case 'elementExists': {\n                response = this.elementExists(prop, false)\n                info = `Element \"${prop}\" ${response ? 'exists' : 'does not exist'}`\n                break\n            }\n\n            case 'get': {\n                response = this.get(prop)\n                break\n            }\n\n            case 'getManagedVarList': {\n                if (prop === 'full') response = this.getManagedVarList()\n                else response = Object.values(this.getManagedVarList())\n                break\n            }\n\n            case 'getWatchedVars': {\n                if (prop === 'full') response = this.getWatchedVars()\n                else response = Object.values(this.getWatchedVars())\n                break\n            }\n\n            case 'htmlSend': {\n                response = this.htmlSend('', false)\n                break\n            }\n\n            case 'include': {\n                // include is async\n                response = _ui.include(prop, value)\n                break\n            }\n\n            case 'navigate': {\n                let newUrl\n                if (prop) newUrl = prop\n                else if (value) newUrl = value\n                response = this.navigate(newUrl)\n                break\n            }\n\n            case 'scrollTo': {\n                response = this.scrollTo(prop, value)\n                break\n            }\n\n            case 'set': {\n                let store = false\n                let autoload = false\n                if (msg._uib.options && msg._uib.options.store) {\n                    if (msg._uib.options.store === true) store = true\n                    if (msg._uib.options.autoload === true) autoload = true\n                }\n                response = this.set(prop, value, store, autoload)\n                break\n            }\n\n            case 'showMsg': {\n                response = this.showMsg(value, prop)\n                break\n            }\n\n            case 'showStatus': {\n                response = this.showStatus(value, prop)\n                break\n            }\n\n            case 'uiGet': {\n                response = _ui.uiGet(prop, value)\n                break\n            }\n\n            case 'uiWatch': {\n                response = this.uiWatch(prop)\n                break\n            }\n\n            case 'watchUrlHash': {\n                response = this.watchUrlHash(prop)\n                break\n            }\n\n            default: {\n                log('warning', 'Uib:_uibCommand', `Command '${cmd}' not yet implemented`)()\n                break\n            }\n        }\n\n        if (quiet !== true) {\n            if (response === undefined) {\n                response = `'${prop}' is undefined`\n            }\n            if (Object(response).constructor === Promise) {\n                // response = `'${cmd} ${prop}' submitted. Cmd is async, no response available`\n                response\n                    .then( (/** @type {any} */ data) => {\n                        msg.payload = msg._uib.response = data\n                        msg.info = msg._uib.info = info\n                        if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                        this.send(msg)\n                        return true\n                    })\n                    .catch( err => {\n                        log(0, 'Uib:_uibCommand', 'Error: ', err)()\n                    })\n            } else {\n                msg.payload = msg._uib.response = response\n                msg.info = msg._uib.info = info\n                if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                this.send(msg)\n            }\n        }\n    } // --- end of _uibCommand ---\n\n    /** Do we want to process something? Check pageName, clientId, tabId. Defaults to yes.\n     * @param {*} obj Either a msg._ui or msg._uib object to check\n     * @returns {boolean} True if we should process the inbound _ui/_uib msg, false if not.\n     */\n    _forThis(obj) {\n        let r = true\n\n        // Is this msg for this pageName?\n        if (obj.pageName && obj.pageName !== this.pageName) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this page')()\n            r = false\n        }\n\n        // Is this msg for this clientId?\n        if (obj.clientId && obj.clientId !== this.clientId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this clientId')()\n            r = false\n        }\n\n        // Is this msg for this tabId?\n        if (obj.tabId && obj.tabId !== this.tabId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this tabId')()\n            r = false\n        }\n\n        return r\n    }\n\n    // Handle received messages - Process some msgs internally, emit specific events on document that make it easy for coders to use\n    _msgRcvdEvents(msg) {\n        // Message received\n        this._dispatchCustomEvent('uibuilder:stdMsgReceived', msg)\n\n        // Topic\n        if ( msg.topic ) this._dispatchCustomEvent(`uibuilder:msg:topic:${msg.topic}`, msg)\n\n        // Handle msg._uib special requests\n        if (msg._uib) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._uib)) return\n\n            /** Process a client reload request from Node-RED - as the page is reloaded, everything else is ignored\n             * Note that msg._ui.reload is also actioned via the _ui processing below */\n            if (msg._uib.reload === true) {\n                log('trace', 'Uib:_msgRcvdEvents:_uib:reload', 'reloading')()\n                location.reload()\n                return\n            }\n\n            // Process msg._uib.command messages - allows Node-RED to run uibuilder FE functions\n            if (msg._uib.command) {\n                this._uibCommand(msg)\n                return\n            }\n\n            // Better to request via msg._ui - these are for backwards compatibility\n            if ( msg._uib.componentRef === 'globalNotification' ) {\n                _ui.showDialog('notify', msg._uib.options, msg)\n            }\n            if ( msg._uib.componentRef === 'globalAlert' ) {\n                _ui.showDialog('alert', msg._uib.options, msg)\n            }\n        }\n\n        // Handle msg._ui requests\n        if ( msg._ui ) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._ui)) return\n\n            log('trace', 'Uib:_msgRcvdEvents:_ui', 'Calling _uiManager')()\n            this._dispatchCustomEvent('uibuilder:msg:_ui', msg)\n            _ui._uiManager(msg)\n        }\n    } // --- end of _msgRcvdEvents ---\n\n    /** Callback handler for messages from Node-RED\n     * NOTE: `this` is the class here rather the `socket` as would be normal since we bind the correct `this` in the call.\n     *       Use this._socket if needing reference to the socket.\n     * @callback ioSetupFromServer Called from ioSetup/this._socket.on(this.#ioChannels.server, this.stdMsgFromServer.bind(this))\n     * @param {object} receivedMsg The msg object from Node-RED\n     * @this Uib\n     */\n    _stdMsgFromServer(receivedMsg) {\n\n        // Make sure that msg is an object & not null\n        receivedMsg = makeMeAnObject(receivedMsg, 'payload')\n\n        // Don't process if the inbound msg is not for us\n        if (receivedMsg._uib && !this._forThis(receivedMsg._uib)) return\n        if (receivedMsg._ui && !this._forThis(receivedMsg._ui)) return\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedMsg)\n\n        // Track how many messages have been received\n        this.set('msgsReceived', ++this.msgsReceived)\n\n        // Emit specific document events on msg receipt that make it easy for coders to use\n        this._msgRcvdEvents(receivedMsg)\n\n        if ( !('_ui' in receivedMsg && !('payload' in receivedMsg)) ) {\n            // Save the msg for further processing\n            this.set('msg', receivedMsg)\n        }\n\n        log('info', 'Uib:ioSetup:stdMsgFromServer', `Channel '${this._ioChannels.server}'. Received msg #${this.msgsReceived}.`, receivedMsg)()\n\n        // ! NOTE: Don't try to handle specialist messages here. See _msgRcvdEvents.\n\n    } // -- End of websocket receive DATA msg from Node-RED -- //\n\n    /** Handles original control msgs (not to be confused with \"new\" msg._uib controls)\n     * @param {*} receivedCtrlMsg The msg received on the socket.io control channel\n     */\n    _ctrlMsgFromServer(receivedCtrlMsg) {\n\n        // Make sure that msg is an object & not null\n        if (receivedCtrlMsg === null) {\n            receivedCtrlMsg = {}\n        } else if (typeof receivedCtrlMsg !== 'object') {\n            const msg = {}\n            msg['uibuilderCtrl:' + this._ioChannels.control] = receivedCtrlMsg\n            receivedCtrlMsg = msg\n        }\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedCtrlMsg)\n\n        this.set('ctrlMsg', receivedCtrlMsg)\n        this.set('msgsCtrlReceived', ++this.msgsCtrlReceived)\n\n        log('trace', 'Uib:ioSetup:_ctrlMsgFromServer', `Channel '${this._ioChannels.control}'. Received control msg #${this.msgsCtrlReceived}`, receivedCtrlMsg)()\n\n        /** Process control msg types */\n        switch (receivedCtrlMsg.uibuilderCtrl) {\n            // Node-RED is shutting down\n            case 'shutdown': {\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, '\u274C Received \"shutdown\" from server')()\n                this.set('serverShutdown', undefined)\n                break\n            }\n\n            /** We are connected to the server - 1st msg from server */\n            case 'client connect': {\n                log('trace', `Uib:ioSetup:${this._ioChannels.control}`, 'Received \"client connect\" from server')()\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, `\u2705 Server connected. Version: ${receivedCtrlMsg.version}\\nServer time: ${receivedCtrlMsg.serverTimestamp}, Sever time offset: ${this.serverTimeOffset} hours`)()\n\n                if ( !Uib._meta.version.startsWith(receivedCtrlMsg.version.split('-')[0]) ) {\n                    log('warn', `Uib:ioSetup:${this._ioChannels.control}`, `Server version (${receivedCtrlMsg.version}) not the same as the client version (${Uib._meta.version})`)()\n                }\n\n                if (this.autoSendReady === true) { // eslint-disable-line no-lonely-if\n                    log('trace', `Uib:ioSetup:${this._ioChannels.control}/client connect`, 'Auto-sending ready-for-content/replay msg to server')\n                    // @since 0.4.8c Add cacheControl property for use with node-red-contrib-infocache\n                    // @since 6.1.0 Don't bother, we use the \"client connect\" msg\n                    // this._send({\n                    //     'uibuilderCtrl': 'ready for content',\n                    //     'cacheControl': 'REPLAY',\n                    // }, this._ioChannels.control)\n                }\n\n                break\n            }\n\n            default: {\n                log('trace', `uibuilderfe:ioSetup:${this._ioChannels.control}`, `Received ${receivedCtrlMsg.uibuilderCtrl} from server`)\n                // Anything else to do for other control msgs?\n            }\n\n        } // ---- End of process control msg types ---- //\n\n    } // -- End of websocket receive CONTROL msg from Node-RED -- //\n\n    /** Send log text to uibuilder's beacon endpoint (works even if socket.io not connected)\n     * @param {string} txtToSend Text string to send\n     * @param {string|undefined} logLevel Log level to use. If not supplied, will default to debug\n     */\n    beaconLog(txtToSend, logLevel) {\n        if (!logLevel) logLevel = 'debug'\n        navigator.sendBeacon('./_clientLog', `${logLevel}::${txtToSend}`)\n    }\n\n    /** Send log info back to Node-RED over uibuilder's websocket control output (Port #2)\n     * @param {...*} arguments All arguments passed to the function are added to the msg.payload\n     */\n    logToServer() {\n        this.sendCtrl({\n            uibuilderCtrl: 'client log message',\n            payload: arguments,\n            // \"version\":\"6.1.0-iife.min\",\n            _socketId: this._socket.id,\n            // \"ip\":\"::1\",\n            clientId: this.clientId,\n            tabId: this.tabId,\n            // \"url\":\"esp-test\",\n            pageName: this.pageName,\n            connections: this.connectedNum,\n            lastNavType: this.lastNavType,\n        })\n    }\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Socket.IO -------- //\n\n    /** Return the Socket.IO namespace\n     * The cookie method is the most reliable but this falls back to trying to work it\n     * out from the URL if cookies not available. That won't work if page is in a sub-folder.\n     * since 2017-10-21 Improve method to cope with more complex paths - thanks to Steve Rickus @shrickus\n     * since 2017-11-10 v1.0.1 Check cookie first then url. cookie works even if the path is more complex (e.g. sub-folder)\n     * since 2020-01-25 Removed httpRoot from namespace to prevent proxy induced errors\n     * @returns {string} Socket.IO namespace\n     */\n    _getIOnamespace() {\n\n        let ioNamespace\n\n        /** Try getting the namespace cookie. */\n        ioNamespace = this.cookies['uibuilder-namespace']\n\n        // if it wasn't available, try using the current url path\n        if (ioNamespace === undefined || ioNamespace === '') {\n            // split url path & eliminate any blank elements, and trailing or double slashes\n            const u = window.location.pathname.split('/')\n                .filter(function (t) { return t.trim() !== '' })\n\n            /** since v2.0.5 Extra check for 0 length, Issue #73. since 2017-11-06 If the last element of the path is an .html file name, remove it */\n            if (u.length > 0 && (u[u.length - 1].endsWith('.html'))) u.pop()\n\n            // Get the last part of the url path, this MUST match the namespace in uibuilder\n            ioNamespace = u.pop()\n\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via url path: ${ioNamespace}`)()\n        } else {\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via cookie: ${ioNamespace}`)()\n        }\n\n        this.url = ioNamespace\n        // Namespace HAS to start with a /\n        ioNamespace = '/' + ioNamespace\n\n        log('trace', 'uibuilder.module.js:getIOnamespace', `Final Socket.IO namespace: ${ioNamespace}`)()\n\n        return ioNamespace\n    } // --- End of set IO namespace --- //\n\n    /** Function used to check whether Socket.IO is connected to the server, reconnect if not (recursive)\n     * @param {number} [delay] Initial delay before checking (ms). Default=2000ms\n     * @param {number} [factor] Multiplication factor for subsequent checks (delay*factor). Default=1.5\n     * @param {number} [depth] Recursion depth\n     * @returns {boolean|undefined} Whether or not Socket.IO is connected to uibuilder in Node-RED\n     */\n    _checkConnect(delay, factor, depth = 1) {\n        if ( navigator.onLine === false ) return // Don't bother if we know we are offline\n\n        if (!delay) delay = this.retryMs\n        if (!factor) factor = this.retryFactor\n\n        log('trace', 'Uib:checkConnect', `Checking connection. Connected: ${this._socket.connected}. Timer: ${this.#timerid}. Depth: ${depth}. Delay: ${delay}. Factor: ${factor}`, this._socket)()\n\n        // If we are connected ...\n        if (this._socket.connected === true) {\n            // Clear the setTimeout\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this.set('ioConnected', true)\n            this.set('socketError', null)\n            return true\n        }\n\n        // ... we aren't connected so:\n        this.set('ioConnected', false)\n\n        // we only want one running at a time\n        if (this.#timerid) window.clearTimeout(this.#timerid)\n\n        // Create the new timer\n        this.#timerid = window.setTimeout(() => {\n            log('warn', 'Uib:checkConnect:setTimeout', `Socket.IO reconnection attempt. Current delay: ${delay}. Depth: ${depth}`)()\n\n            // this is necessary sometimes when the socket fails to connect on startup\n            this._socket.close()\n\n            // Try to reconnect\n            this._socket.connect()\n\n            // don't need to check whether we have connected as the timer will have been cleared if we have\n            this.#timerid = null\n\n            // @ts-ignore Create new timer for next time round with extended delay\n            this._checkConnect(delay * factor, factor, depth++)\n        }, delay)\n\n        return false\n    } // --- End of checkConnect Fn--- //\n\n    // See message handling section for msg receipt handlers\n\n    /** Called by _ioSetup when Socket.IO connects to Node-RED */\n    _onConnect() {\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n        log('info', 'Uib:ioSetup', `\u2705 SOCKET CONNECTED. Connection count: ${this.connectedNum}, Is a Recovery?: ${this._socket.recovered}. \\nNamespace: ${this.ioNamespace}`)()\n        this._dispatchCustomEvent('uibuilder:socket:connected', { 'numConnections': this.connectedNum, 'isRecovery': this._socket.recovered })\n\n        this._checkConnect() // resets any reconnection timers & sets connected flag\n    }\n\n    /** Called by _ioSetup when Socket.IO disconnects from Node-RED\n     * @param {string} reason Disconnection title\n     */\n    _onDisconnect(reason) {\n        // reason === 'io server disconnect' - redeploy of Node instance\n        // reason === 'transport close' - Node-RED terminating\n        // reason === 'ping timeout' - didn't receive a pong response?\n        log('info', 'Uib:ioSetup:socket-disconnect', `\u26D4 Socket Disconnected. Reason: ${reason}`)()\n\n        this._dispatchCustomEvent('uibuilder:socket:disconnected', reason)\n\n        /** A workaround for SIO's failure to reconnect after a disconnection */\n        this._checkConnect()\n    }\n\n    /** Setup Socket.io\n     * since v2.0.0-beta2 Moved to a function and called by the user (uibuilder.start()) so that namespace & path can be passed manually if needed\n     * @returns {boolean} Attaches socket.io manager to self._socket and updates self.ioNamespace & self.ioPath as needed\n     */\n    _ioSetup() {\n\n        // Just a notification, actual load is done outside the class (see start of file)\n        if (io === undefined) {\n            log('error', 'Uib:ioSetup', 'Socket.IO client not loaded, Node-RED comms will not work')()\n            return false\n        }\n\n        // If socket is already set up, close it and remove all of the listeners\n        if (this._socket) {\n            log('trace', 'Uib:ioSetup', 'Removing listeners in preparation for redoing Socket.IO connections')()\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this._socket.close()\n            this._socket.offAny()\n            this._socket = undefined\n            this.set('ioConnected', false)\n        }\n\n        // Update the URL path to make sure we have the right one\n        this.socketOptions.path = this.ioPath\n\n        // NOTE: this._socket.auth is now set by callback and so automatically updated for each client (re)connection. No need to set here\n\n        // Create the socket - make sure client uses Socket.IO version from the uibuilder module (using path)\n        log('trace', 'Uib:ioSetup', `About to create IO object. Transports: [${this.socketOptions.transports.join(', ')}]`)()\n        this._socket = io(this.ioNamespace, this.socketOptions)\n\n        /** When the socket is connected - set ioConnected flag and reset connect timer  */\n        this._socket.on('connect', this._onConnect.bind(this))\n\n        // RECEIVE a STANDARD, non-control msg from Node-RED server\n        this._socket.on(this._ioChannels.server, this._stdMsgFromServer.bind(this))\n\n        // RECEIVE a CONTROL msg from Node-RED server - see also sendCtrl()\n        this._socket.on(this._ioChannels.control, this._ctrlMsgFromServer.bind(this))\n\n        // When the socket is disconnected ..............\n        this._socket.on('disconnect', this._onDisconnect.bind(this))\n\n        // Socket.io connection error - probably the wrong ioPath - or client is offline\n        this._socket.on('connect_error', (err) => {\n            if ( navigator.onLine === false ) return // Don't bother with an error if we know we are offline\n            log('error', 'Uib:ioSetup:connect_error', `\u274C Socket.IO Connect Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket connect error processing ---\n\n        // Socket.io error - from the server (socket.use middleware triggered an error response)\n        this._socket.on('error', (err) => {\n            log('error', 'Uib:ioSetup:error', `\u274C Socket.IO Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket error processing ---\n\n        // Ensure we are connected, retry if not\n        this._checkConnect()\n\n        return true\n\n        /* We really don't need these, just for interest\n            self._socket.io.on('packet', function onPacket(data){\n                // we get one of these for each REAL msg (not ping/pong)\n                console.debug('PACKET', data)\n            })\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n                //console.dir(self._socket)\n            }) // --- End of socket pong processing ---\n            self._socket.io.on('packet', function(data){\n                // We get one of these for actual messages, not ping/pong\n                console.debug('PACKET', data)\n            })\n            self._socket.on('connect_timeout', function(timeout) {\n                console.debug('SOCKET CONNECT TIMEOUT - Namespace: ' + ioNamespace + ', Timeout: ' + timeout)\n            }) // --- End of socket connect timeout processing ---\n            self._socket.on('reconnect', function(attemptNum) {\n                console.debug('SOCKET RECONNECTED - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect processing ---\n            self._socket.on('reconnect_attempt', function(attemptNum) {\n                console.debug('SOCKET RECONNECT ATTEMPT - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect_attempt processing ---\n            self._socket.on('reconnecting', function(attemptNum) {\n                console.debug('SOCKET RECONNECTING - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnecting processing ---\n            self._socket.on('reconnect_error', function(err) {\n                console.debug('SOCKET RECONNECT ERROR - Namespace: ' + ioNamespace + ', Reason: ' + err.message)\n                //console.dir(err)\n            }) // --- End of socket reconnect_error processing ---\n            self._socket.on('reconnect_failed', function() {\n                console.debug('SOCKET RECONNECT FAILED - Namespace: ' + ioNamespace)\n            }) // --- End of socket reconnect_failed processing ---\n            self._socket.on('ping', function() {\n                console.debug('SOCKET PING')\n            }) // --- End of socket ping processing ---\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n            }) // --- End of socket pong processing ---\n            */\n    } // ---- End of ioSetup ---- //\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Class construction & startup method -------- //\n\n    constructor() {\n        log('trace', 'Uib:constructor', 'Starting')()\n\n        // Track whether the client is online or offline\n        window.addEventListener('offline', (e) => {\n            this.set('online', false)\n            this.set('ioConnected', false)\n            log('warn', 'Browser', 'DISCONNECTED from network')()\n        })\n        window.addEventListener('online', (e) => {\n            this.set('online', true)\n            log('warn', 'Browser', 'Reconnected to network')()\n            this._checkConnect()\n        })\n\n        document.cookie.split(';').forEach((c) => {\n            const splitC = c.split('=')\n            this.cookies[splitC[0].trim()] = splitC[1]\n        })\n\n        /** Client ID set by uibuilder - lasts until browser profile is closed, applies to all tabs */\n        this.set('clientId', this.cookies['uibuilder-client-id'])\n        log('trace', 'Uib:constructor', 'Client ID: ', this.clientId)()\n\n        /** Tab ID - lasts while the tab is open (even if reloaded)\n         * WARNING: Duplicating a tab retains the same tabId\n         */\n        this.set('tabId', window.sessionStorage.getItem('tabId'))\n        if (!this.tabId) {\n            this.set('tabId', `t${Math.floor(Math.random() * 1000000)}`)\n            window.sessionStorage.setItem('tabId', this.tabId)\n        }\n\n        // document.addEventListener('pagehide', (event) => {\n        //     // console.log(`pagehide. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pagehide. From Cache?: ${event.persisted}`)\n        // })\n        // document.addEventListener('pageshow', (event) => {\n        //     // console.log(`pageshow. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pageshow. From Cache?: ${event.persisted}`)\n        // })\n        document.addEventListener('load', () => {\n            this.set('isVisible', true)\n        })\n        document.addEventListener('visibilitychange', () => {\n            // hidden=unload, minimise. visible=un-minimise (not fired on load)\n            this.set('isVisible', document.visibilityState === 'visible')\n            this.sendCtrl({ uibuilderCtrl: 'visibility', isVisible: this.isVisible })\n            // navigator.userActivation is experimental Chromium only\n            // console.log('visibilitychange', ':', `Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n            // navigator.sendBeacon('./_clientLog', `${(new Date()).toISOString()} Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n        })\n\n        // Set a listener to update showStatus table if it is active\n        document.addEventListener('uibuilder:propertyChanged', (event) => {\n            if (!this.#isShowStatus) return\n\n            // @ts-ignore\n            if (event.detail.prop in this.#showStatus) {\n                // @ts-ignore\n                document.querySelector(`td[data-vartype=\"${event.detail.prop}\"]`).innerText = JSON.stringify(event.detail.value)\n            }\n        })\n\n        this.set('ioNamespace', this._getIOnamespace())\n\n        //#region - Try to make sure client uses Socket.IO client version from the uibuilder module (using cookie or path) @since v2.0.0 2019-02-24 allows for httpNodeRoot\n\n        /** httpNodeRoot (to set path) */\n        if ('uibuilder-webRoot' in this.cookies) {\n            this.set('httpNodeRoot', this.cookies['uibuilder-webRoot'])\n            log('trace', 'Uib:constructor', `httpNodeRoot set by cookie to \"${this.httpNodeRoot}\"`)()\n        } else {\n            // split current url path, eliminate any blank elements and trailing or double slashes\n            const fullPath = window.location.pathname.split('/').filter(function (t) { return t.trim() !== '' })\n            /** handle url includes file name - @since v2.0.5 Extra check for 0 length, Issue #73. */\n            if (fullPath.length > 0 && fullPath[fullPath.length - 1].endsWith('.html')) fullPath.pop()\n            fullPath.pop() // gives the last path section of the url\n            this.set('httpNodeRoot', `/${fullPath.join('/')}`)\n            log('trace', '[Uib:constructor]', `httpNodeRoot set by URL parsing to \"${this.httpNodeRoot}\". NOTE: This may fail for pages in sub-folders.`)()\n        }\n        this.set('ioPath', urlJoin(this.httpNodeRoot, Uib._meta.displayName, 'vendor', 'socket.io'))\n        log('trace', 'Uib:constructor', `ioPath: \"${this.ioPath}\"`)()\n\n        //#endregion\n\n        // Work out pageName\n        this.set('pageName', window.location.pathname.replace(`${this.ioNamespace}/`, ''))\n        if ( this.pageName.endsWith('/') ) this.set('pageName', `${this.pageName}index.html`)\n        if ( this.pageName === '' ) this.set('pageName', 'index.html')\n\n        // Attempt to restore autoload variables\n        try {\n            const autoloadVars = this.getStore('_uibAutoloadVars')\n            if (Object.keys(autoloadVars).length > 0) {\n                Object.keys(autoloadVars).forEach( (id) => {\n                    this.set(id, this.getStore(id))\n                })\n            }\n        } catch (e) {}\n\n        this._dispatchCustomEvent('uibuilder:constructorComplete')\n\n        log('trace', 'Uib:constructor', 'Ending')()\n    }\n\n    /** Start up Socket.IO comms and listeners\n     * This has to be done separately because if running from a web page in a sub-folder of src/dist, uibuilder cannot\n     * necessarily work out the correct ioPath to use.\n     * Also, if cookies aren't permitted in the browser, both ioPath and ioNamespace may need to be specified.\n     * @param {object} [options] The start options object.\n     * @returns {void}\n     */\n    start(options) {\n        log('trace', 'Uib:start', 'Starting')()\n\n        // Cancel the msg event handler if already present\n        if ( this.#MsgHandler ) this.cancelChange('msg', this.#MsgHandler)\n\n        if (this.started === true) {\n            log('info', 'Uib:start', 'Start function already called. Resetting Socket.IO and msg handler.')()\n        }\n\n        log('log', 'Uib:start', 'Cookies: ', this.cookies, `\\nClient ID: ${this.clientId}`)()\n        log('trace', 'Uib:start', 'ioNamespace: ', this.ioNamespace, `\\nioPath: ${this.ioPath}`)()\n\n        // Handle options\n        if (options) {\n            if (options.ioNamespace !== undefined && options.ioNamespace !== null && options.ioNamespace !== '') this.set('ioNamespace', options.ioNamespace)\n            if (options.ioPath !== undefined && options.ioPath !== null && options.ioPath !== '') this.set('ioPath', options.ioPath)\n            // See below for handling of options.loadStylesheet\n        }\n\n        // Do we need to load styles?\n        if ( document.styleSheets.length >= 1 || (document.styleSheets.length === 1 && document.styleSheets[0].cssRules.length === 0) ) {\n            log('info', 'Uib:start', 'Styles already loaded so not loading uibuilder default styles.')()\n        } else {\n            if (options && options.loadStylesheet === false) log('info', 'Uib:start', 'No styles loaded & options.loadStylesheet === false.')()\n            else {\n                log('info', 'Uib:start', 'No styles loaded, loading uibuilder default styles.')()\n                this.loadStyleSrc(`${this.httpNodeRoot}/uibuilder/uib-brand.min.css`)\n            }\n        }\n\n        /** Handle specialist messages like reload and _ui -> Moved to _msgRcvdEvents */\n\n        // Track last browser navigation type: navigate, reload, back_forward, prerender\n        const [entry] = performance.getEntriesByType('navigation')\n        // @ts-ignore\n        this.set('lastNavType', entry.type)\n\n        // Start up (or restart) Socket.IO connections and listeners. Returns false if io not found\n        this.set('started', this._ioSetup())\n\n        if ( this.started === true ) {\n            log('trace', 'Uib:start', 'Start completed. Socket.IO client library loaded.')()\n        } else {\n            log('error', 'Uib:start', 'Start completed. ERROR: Socket.IO client library NOT LOADED.')()\n        }\n\n        // Watch for URL hash changes in case using a front-end router. Updates watched var `urlHash` and socket.io `auth.urlHash`\n        this._watchHashChanges()\n\n        // Check if Vue is present (used for dynamic UI processing)\n        if (window['Vue']) {\n            this.set('isVue', true)\n            try {\n                this.set('vueVersion', window['Vue'].version)\n            } catch (e) { }\n            log('trace', 'Uib:start', `VueJS is loaded. Version: ${this.vueVersion}`)()\n        } else {\n            log('trace', 'Uib:start', 'VueJS is not loaded.')()\n        }\n\n        // Check if DOMPurify library is loaded\n        if (window['DOMPurify']) {\n            this.set('purify', true)\n            log('trace', 'Uib:start', 'DOMPurify is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'DOMPurify is not loaded.')()\n        }\n        // Check if Markdown-IT library is loaded\n        if (window['markdownit']) {\n            this.set('markdown', true)\n            log('trace', 'Uib:start', 'Markdown-IT is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'Markdown-IT is not loaded.')()\n        }\n\n        // if (window['DOMPurify']) {\n        //     this.set('purify', true)\n        //     log('trace', 'Uib:start', 'DOMPurify is loaded.')\n        // } else {\n        //     log('trace', 'Uib:start', 'DOMPurify is not loaded.')\n        // }\n\n        // Set up msg listener for the optional showMsg\n        this.onChange('msg', (msg) => {\n            if (this.#isShowMsg === true) {\n                const eMsg = document.getElementById('uib_last_msg')\n                if (eMsg) eMsg.innerHTML = this.syntaxHighlight(msg)\n            }\n        })\n\n        this._dispatchCustomEvent('uibuilder:startComplete')\n    }\n\n    //#endregion -------- ------------ -------- //\n} // ==== End of Class Uib ====\n\n//#region --- Wrap up - get things started ---\n\n// Create an instance (we will only ever want one)\nconst uibuilder = new Uib()\n\n// Assign reference to the instance to the global `window` object\n// Only useful if loading via <script> tag - prefer loading via `import uibuilder from ...`\nif (!window['uibuilder']) {\n    window['uibuilder'] = uibuilder\n} else {\n    log('error', 'uibuilder.module.js', '`uibuilder` already assigned to window. Have you tried to load it more than once?')\n}\nif (!window['uib']) {\n    window['uib'] = uibuilder\n} else {\n    log('warn', 'uibuilder.module.js', '`uib` shortcut already assigned to window.')\n}\n\n// Assign `$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$`.\nif (!window['$']) {\n    /** @type {HTMLElement} */\n    window['$'] = window['uibuilder'].$ // document.querySelector.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` instead.')\n}\n// Assign `$$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$$']) {\n    /** @type {HTMLElement} */\n    window['$$'] = window['uibuilder'].$$ // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` instead.')\n}\n\n// Can import as `import uibuilder from ...` OR `import {uibuilder} from ...`\nexport { uibuilder }\nexport default uibuilder\n\n// Attempt to run start fn\nuibuilder.start()\n\n// Add the class as a new Custom Element to the window object\ncustomElements.define('uib-var', UibVar)\n\n//#endregion --- Wrap up ---\n\n// EOF\n", "/** A zero dependency web component that will display a managed uibuilder variable.\n *\n * Version: 0.0.1 2023-10-07\n *\n * ToDo:\n * -\n */\n/*\n  Copyright (c) 2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n// const template = document.createElement('template')\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<link type=\"text/css\" rel=\"stylesheet\" href=\"\"../uibuilder/uib-brand.min.css\"\" media=\"all\"><span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`\n// {/* <style>@import url(\"../uibuilder/uib-brand.min.css\");</style><span></span> */}\n// `\n\nexport default class UibVar extends HTMLElement {\n    //#region --- Class Properties ---\n    /** @type {string} Name of the uibuilder mangaged variable to use */\n    variable\n    /** Current value of the watched variable */\n    value\n    /** Whether to output if the variable is undefined */\n    undefined = false\n    /** Whether to send update value to Node-RED on change */\n    report = false\n    /** What is the value type */\n    type = 'plain'\n    /** what are the available types? */\n    types = ['plain', 'html', 'markdown', 'object']\n\n    /** Mini jQuery-like shadow dom selector (see constructor) */\n    $\n    \n    /** Holds a count of how many instances of this component are on the page */\n    static _iCount = 0\n    /** @type {Array<string>} List of all of the html attribs (props) listened to */\n    static props = ['name', 'id', 'variable', 'undefined', 'report', 'type']\n    //#endregion --- Class Properties ---\n\n    constructor() {\n        super()\n        this.shadow = this.attachShadow({ mode: 'open', delegatesFocus: true })\n            // .append(template.content.cloneNode(true))\n\n        this.$ = this.shadowRoot.querySelector.bind(this.shadowRoot)\n\n        // Apply external styles to the shadow dom\n        this.css = document.createElement(\"link\")\n        this.css.setAttribute(\"type\", \"text/css\")\n        this.css.setAttribute(\"rel\", \"stylesheet\")\n        this.css.setAttribute(\"href\", \"../uibuilder/uib-brand.min.css\")\n\n        this.dispatchEvent(new Event(`uib-var:construction`, { bubbles: true, composed: true }))\n    }\n\n    // Makes HTML attribute change watched\n    static get observedAttributes() {\n        return UibVar.props\n    }\n\n    /** NOTE: On initial startup, this is called for each watched attrib set in HTML - BEFORE connectedCallback is called  */\n    attributeChangedCallback(attrib, oldVal, newVal) {\n        if ( oldVal === newVal ) return\n\n        switch (attrib) {\n            case 'variable': {\n                if (newVal === '') throw new Error('[uib-var] Attribute \"variable\" MUST be set to a UIBUILDER managed variable name')\n                this.variable = newVal\n                this.doWatch()\n                break\n            }\n            case 'undefined': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.undefined = true\n                else this.undefined = false\n                break\n            }\n            case 'report': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.report = true\n                else this.report = false\n                break\n            }\n            case 'type': {\n                if (newVal === '' || !this.types.includes(newVal.toLowerCase())) this.type = 'plain'\n                else this.type = newVal\n                break\n            }\n\n            default: {\n                this[attrib] = newVal\n                break\n            }\n        }\n    } // --- end of attributeChangedCallback --- //\n\n    // Runs when an instance is added to the DOM\n    connectedCallback() {\n        // Make sure instance has an ID. Create an id from name or calculation if needed\n        if (!this.id) {\n            if (!this.name) this.name = this.getAttribute('name')\n            if (this.name) this.id = this.name.toLowerCase().replace(/\\s/g, '_')\n            else this.id = `uib-var-${++UibVar._iCount}`\n        }\n    }  // ---- end of connectedCallback ---- //\n\n    // Runs when an instance is removed from the DOM\n    // disconnectedCallback() {} // ---- end of disconnectedCallback ---- //\n\n    /** Process changes to the required uibuilder variable */\n    doWatch() {\n        if (!this.variable) throw new Error('No variable name provided')\n        // if (!window['uibuilder']) throw new Error('UIBUILDER client library not loaded - this component must be loaded AFTER the UIBUILDER library')\n\n        this.value = window['uibuilder'].get(this.variable)\n        this.varDom()\n\n        // Watch for changes in the variable\n        window['uibuilder'].onChange(this.variable, (val) => {\n            this.value = val\n            this.varDom()\n            if (this.report === true) window['uibuilder'].send({topic: this.variable, payload: this.value || undefined})\n        })\n    }\n\n    /** Convert this.value to DOM output */\n    varDom() {\n        // If user doesn't want to show undefined vars, allow the component slot to show instead\n        if (this.value === undefined && this.undefined !== true) { \n            this.shadow.innerHTML = '<slot></slot>'\n            return\n        }\n        \n        let val = this.value\n\n        // console.log('\uD83E\uDDEA varDOM: ', val, typeof val, this.type)\n\n        switch (this.type) {\n            case 'markdown': {\n                this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(window['uibuilder'].convertMarkdown(val))\n                break\n            }\n        \n            case 'object': {\n                // console.log(window['uibuilder'].syntaxHighlight(val))\n                this.shadow.innerHTML = `<pre class=\"syntax-highlight\">${window['uibuilder'].syntaxHighlight(val)}</pre>`\n                break\n            }\n        \n            case 'plain':\n            case 'html':\n            default: {\n                const t = typeof val\n                if (Array.isArray(val) || t === '[object Object]' || t === 'object') {\n                    try {\n                        this.shadow.innerHTML = JSON.stringify(val)\n                    } catch (e) {\n                        this.shadow.innerHTML = val\n                    }\n                } else {\n                    this.shadow.innerHTML = val\n                }\n                break\n            }\n        }\n\n        this.shadow.appendChild(this.css)\n        // this.$('span').innerHTML = window['uibuilder'].sanitiseHTML(val)\n        // this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(val)\n    }\n}\n\n// Add the class as a new Custom Element to the window object \n// customElements.define('uib-var', UibVar)\n", "const PACKET_TYPES = Object.create(null); // no Map = no polyfill\nPACKET_TYPES[\"open\"] = \"0\";\nPACKET_TYPES[\"close\"] = \"1\";\nPACKET_TYPES[\"ping\"] = \"2\";\nPACKET_TYPES[\"pong\"] = \"3\";\nPACKET_TYPES[\"message\"] = \"4\";\nPACKET_TYPES[\"upgrade\"] = \"5\";\nPACKET_TYPES[\"noop\"] = \"6\";\nconst PACKET_TYPES_REVERSE = Object.create(null);\nObject.keys(PACKET_TYPES).forEach(key => {\n    PACKET_TYPES_REVERSE[PACKET_TYPES[key]] = key;\n});\nconst ERROR_PACKET = { type: \"error\", data: \"parser error\" };\nexport { PACKET_TYPES, PACKET_TYPES_REVERSE, ERROR_PACKET };\n", "import { PACKET_TYPES } from \"./commons.js\";\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        Object.prototype.toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\n// ArrayBuffer.isView method is not defined in IE10\nconst isView = obj => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj && obj.buffer instanceof ArrayBuffer;\n};\nconst encodePacket = ({ type, data }, supportsBinary, callback) => {\n    if (withNativeBlob && data instanceof Blob) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(data, callback);\n        }\n    }\n    else if (withNativeArrayBuffer &&\n        (data instanceof ArrayBuffer || isView(data))) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(new Blob([data]), callback);\n        }\n    }\n    // plain string\n    return callback(PACKET_TYPES[type] + (data || \"\"));\n};\nconst encodeBlobAsBase64 = (data, callback) => {\n    const fileReader = new FileReader();\n    fileReader.onload = function () {\n        const content = fileReader.result.split(\",\")[1];\n        callback(\"b\" + (content || \"\"));\n    };\n    return fileReader.readAsDataURL(data);\n};\nfunction toArray(data) {\n    if (data instanceof Uint8Array) {\n        return data;\n    }\n    else if (data instanceof ArrayBuffer) {\n        return new Uint8Array(data);\n    }\n    else {\n        return new Uint8Array(data.buffer, data.byteOffset, data.byteLength);\n    }\n}\nlet TEXT_ENCODER;\nexport function encodePacketToBinary(packet, callback) {\n    if (withNativeBlob && packet.data instanceof Blob) {\n        return packet.data\n            .arrayBuffer()\n            .then(toArray)\n            .then(callback);\n    }\n    else if (withNativeArrayBuffer &&\n        (packet.data instanceof ArrayBuffer || isView(packet.data))) {\n        return callback(toArray(packet.data));\n    }\n    encodePacket(packet, false, encoded => {\n        if (!TEXT_ENCODER) {\n            TEXT_ENCODER = new TextEncoder();\n        }\n        callback(TEXT_ENCODER.encode(encoded));\n    });\n}\nexport { encodePacket };\n", "// imported from https://github.com/socketio/base64-arraybuffer\nconst chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';\n// Use a lookup table to find the index.\nconst lookup = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);\nfor (let i = 0; i < chars.length; i++) {\n    lookup[chars.charCodeAt(i)] = i;\n}\nexport const encode = (arraybuffer) => {\n    let bytes = new Uint8Array(arraybuffer), i, len = bytes.length, base64 = '';\n    for (i = 0; i < len; i += 3) {\n        base64 += chars[bytes[i] >> 2];\n        base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];\n        base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];\n        base64 += chars[bytes[i + 2] & 63];\n    }\n    if (len % 3 === 2) {\n        base64 = base64.substring(0, base64.length - 1) + '=';\n    }\n    else if (len % 3 === 1) {\n        base64 = base64.substring(0, base64.length - 2) + '==';\n    }\n    return base64;\n};\nexport const decode = (base64) => {\n    let bufferLength = base64.length * 0.75, len = base64.length, i, p = 0, encoded1, encoded2, encoded3, encoded4;\n    if (base64[base64.length - 1] === '=') {\n        bufferLength--;\n        if (base64[base64.length - 2] === '=') {\n            bufferLength--;\n        }\n    }\n    const arraybuffer = new ArrayBuffer(bufferLength), bytes = new Uint8Array(arraybuffer);\n    for (i = 0; i < len; i += 4) {\n        encoded1 = lookup[base64.charCodeAt(i)];\n        encoded2 = lookup[base64.charCodeAt(i + 1)];\n        encoded3 = lookup[base64.charCodeAt(i + 2)];\n        encoded4 = lookup[base64.charCodeAt(i + 3)];\n        bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n        bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n        bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n    }\n    return arraybuffer;\n};\n", "import { ERROR_PACKET, PACKET_TYPES_REVERSE } from \"./commons.js\";\nimport { decode } from \"./contrib/base64-arraybuffer.js\";\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nexport const decodePacket = (encodedPacket, binaryType) => {\n    if (typeof encodedPacket !== \"string\") {\n        return {\n            type: \"message\",\n            data: mapBinary(encodedPacket, binaryType)\n        };\n    }\n    const type = encodedPacket.charAt(0);\n    if (type === \"b\") {\n        return {\n            type: \"message\",\n            data: decodeBase64Packet(encodedPacket.substring(1), binaryType)\n        };\n    }\n    const packetType = PACKET_TYPES_REVERSE[type];\n    if (!packetType) {\n        return ERROR_PACKET;\n    }\n    return encodedPacket.length > 1\n        ? {\n            type: PACKET_TYPES_REVERSE[type],\n            data: encodedPacket.substring(1)\n        }\n        : {\n            type: PACKET_TYPES_REVERSE[type]\n        };\n};\nconst decodeBase64Packet = (data, binaryType) => {\n    if (withNativeArrayBuffer) {\n        const decoded = decode(data);\n        return mapBinary(decoded, binaryType);\n    }\n    else {\n        return { base64: true, data }; // fallback for old browsers\n    }\n};\nconst mapBinary = (data, binaryType) => {\n    switch (binaryType) {\n        case \"blob\":\n            if (data instanceof Blob) {\n                // from WebSocket + binaryType \"blob\"\n                return data;\n            }\n            else {\n                // from HTTP long-polling or WebTransport\n                return new Blob([data]);\n            }\n        case \"arraybuffer\":\n        default:\n            if (data instanceof ArrayBuffer) {\n                // from HTTP long-polling (base64) or WebSocket + binaryType \"arraybuffer\"\n                return data;\n            }\n            else {\n                // from WebTransport (Uint8Array)\n                return data.buffer;\n            }\n    }\n};\n", "import { encodePacket, encodePacketToBinary } from \"./encodePacket.js\";\nimport { decodePacket } from \"./decodePacket.js\";\nimport { ERROR_PACKET } from \"./commons.js\";\nconst SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text\nconst encodePayload = (packets, callback) => {\n    // some packets may be added to the array while encoding, so the initial length must be saved\n    const length = packets.length;\n    const encodedPackets = new Array(length);\n    let count = 0;\n    packets.forEach((packet, i) => {\n        // force base64 encoding for binary packets\n        encodePacket(packet, false, encodedPacket => {\n            encodedPackets[i] = encodedPacket;\n            if (++count === length) {\n                callback(encodedPackets.join(SEPARATOR));\n            }\n        });\n    });\n};\nconst decodePayload = (encodedPayload, binaryType) => {\n    const encodedPackets = encodedPayload.split(SEPARATOR);\n    const packets = [];\n    for (let i = 0; i < encodedPackets.length; i++) {\n        const decodedPacket = decodePacket(encodedPackets[i], binaryType);\n        packets.push(decodedPacket);\n        if (decodedPacket.type === \"error\") {\n            break;\n        }\n    }\n    return packets;\n};\nexport function createPacketEncoderStream() {\n    return new TransformStream({\n        transform(packet, controller) {\n            encodePacketToBinary(packet, encodedPacket => {\n                const payloadLength = encodedPacket.length;\n                let header;\n                // inspired by the WebSocket format: https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API/Writing_WebSocket_servers#decoding_payload_length\n                if (payloadLength < 126) {\n                    header = new Uint8Array(1);\n                    new DataView(header.buffer).setUint8(0, payloadLength);\n                }\n                else if (payloadLength < 65536) {\n                    header = new Uint8Array(3);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 126);\n                    view.setUint16(1, payloadLength);\n                }\n                else {\n                    header = new Uint8Array(9);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 127);\n                    view.setBigUint64(1, BigInt(payloadLength));\n                }\n                // first bit indicates whether the payload is plain text (0) or binary (1)\n                if (packet.data && typeof packet.data !== \"string\") {\n                    header[0] |= 0x80;\n                }\n                controller.enqueue(header);\n                controller.enqueue(encodedPacket);\n            });\n        }\n    });\n}\nlet TEXT_DECODER;\nfunction totalLength(chunks) {\n    return chunks.reduce((acc, chunk) => acc + chunk.length, 0);\n}\nfunction concatChunks(chunks, size) {\n    if (chunks[0].length === size) {\n        return chunks.shift();\n    }\n    const buffer = new Uint8Array(size);\n    let j = 0;\n    for (let i = 0; i < size; i++) {\n        buffer[i] = chunks[0][j++];\n        if (j === chunks[0].length) {\n            chunks.shift();\n            j = 0;\n        }\n    }\n    if (chunks.length && j < chunks[0].length) {\n        chunks[0] = chunks[0].slice(j);\n    }\n    return buffer;\n}\nexport function createPacketDecoderStream(maxPayload, binaryType) {\n    if (!TEXT_DECODER) {\n        TEXT_DECODER = new TextDecoder();\n    }\n    const chunks = [];\n    let state = 0 /* READ_HEADER */;\n    let expectedLength = -1;\n    let isBinary = false;\n    return new TransformStream({\n        transform(chunk, controller) {\n            chunks.push(chunk);\n            while (true) {\n                if (state === 0 /* READ_HEADER */) {\n                    if (totalLength(chunks) < 1) {\n                        break;\n                    }\n                    const header = concatChunks(chunks, 1);\n                    isBinary = (header[0] & 0x80) === 0x80;\n                    expectedLength = header[0] & 0x7f;\n                    if (expectedLength < 126) {\n                        state = 3 /* READ_PAYLOAD */;\n                    }\n                    else if (expectedLength === 126) {\n                        state = 1 /* READ_EXTENDED_LENGTH_16 */;\n                    }\n                    else {\n                        state = 2 /* READ_EXTENDED_LENGTH_64 */;\n                    }\n                }\n                else if (state === 1 /* READ_EXTENDED_LENGTH_16 */) {\n                    if (totalLength(chunks) < 2) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 2);\n                    expectedLength = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length).getUint16(0);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else if (state === 2 /* READ_EXTENDED_LENGTH_64 */) {\n                    if (totalLength(chunks) < 8) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 8);\n                    const view = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length);\n                    const n = view.getUint32(0);\n                    if (n > Math.pow(2, 53 - 32) - 1) {\n                        // the maximum safe integer in JavaScript is 2^53 - 1\n                        controller.enqueue(ERROR_PACKET);\n                        break;\n                    }\n                    expectedLength = n * Math.pow(2, 32) + view.getUint32(4);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else {\n                    if (totalLength(chunks) < expectedLength) {\n                        break;\n                    }\n                    const data = concatChunks(chunks, expectedLength);\n                    controller.enqueue(decodePacket(isBinary ? data : TEXT_DECODER.decode(data), binaryType));\n                    state = 0 /* READ_HEADER */;\n                }\n                if (expectedLength === 0 || expectedLength > maxPayload) {\n                    controller.enqueue(ERROR_PACKET);\n                    break;\n                }\n            }\n        }\n    });\n}\nexport const protocol = 4;\nexport { encodePacket, encodePayload, decodePacket, decodePayload };\n", "/**\n * Initialize a new `Emitter`.\n *\n * @api public\n */\n\nexport function Emitter(obj) {\n  if (obj) return mixin(obj);\n}\n\n/**\n * Mixin the emitter properties.\n *\n * @param {Object} obj\n * @return {Object}\n * @api private\n */\n\nfunction mixin(obj) {\n  for (var key in Emitter.prototype) {\n    obj[key] = Emitter.prototype[key];\n  }\n  return obj;\n}\n\n/**\n * Listen on the given `event` with `fn`.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.on =\nEmitter.prototype.addEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])\n    .push(fn);\n  return this;\n};\n\n/**\n * Adds an `event` listener that will be invoked a single\n * time then automatically removed.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.once = function(event, fn){\n  function on() {\n    this.off(event, on);\n    fn.apply(this, arguments);\n  }\n\n  on.fn = fn;\n  this.on(event, on);\n  return this;\n};\n\n/**\n * Remove the given callback for `event` or all\n * registered callbacks.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.off =\nEmitter.prototype.removeListener =\nEmitter.prototype.removeAllListeners =\nEmitter.prototype.removeEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n\n  // all\n  if (0 == arguments.length) {\n    this._callbacks = {};\n    return this;\n  }\n\n  // specific event\n  var callbacks = this._callbacks['$' + event];\n  if (!callbacks) return this;\n\n  // remove all handlers\n  if (1 == arguments.length) {\n    delete this._callbacks['$' + event];\n    return this;\n  }\n\n  // remove specific handler\n  var cb;\n  for (var i = 0; i < callbacks.length; i++) {\n    cb = callbacks[i];\n    if (cb === fn || cb.fn === fn) {\n      callbacks.splice(i, 1);\n      break;\n    }\n  }\n\n  // Remove event specific arrays for event types that no\n  // one is subscribed for to avoid memory leak.\n  if (callbacks.length === 0) {\n    delete this._callbacks['$' + event];\n  }\n\n  return this;\n};\n\n/**\n * Emit `event` with the given args.\n *\n * @param {String} event\n * @param {Mixed} ...\n * @return {Emitter}\n */\n\nEmitter.prototype.emit = function(event){\n  this._callbacks = this._callbacks || {};\n\n  var args = new Array(arguments.length - 1)\n    , callbacks = this._callbacks['$' + event];\n\n  for (var i = 1; i < arguments.length; i++) {\n    args[i - 1] = arguments[i];\n  }\n\n  if (callbacks) {\n    callbacks = callbacks.slice(0);\n    for (var i = 0, len = callbacks.length; i < len; ++i) {\n      callbacks[i].apply(this, args);\n    }\n  }\n\n  return this;\n};\n\n// alias used for reserved events (protected method)\nEmitter.prototype.emitReserved = Emitter.prototype.emit;\n\n/**\n * Return array of callbacks for `event`.\n *\n * @param {String} event\n * @return {Array}\n * @api public\n */\n\nEmitter.prototype.listeners = function(event){\n  this._callbacks = this._callbacks || {};\n  return this._callbacks['$' + event] || [];\n};\n\n/**\n * Check if this emitter has `event` handlers.\n *\n * @param {String} event\n * @return {Boolean}\n * @api public\n */\n\nEmitter.prototype.hasListeners = function(event){\n  return !! this.listeners(event).length;\n};\n", "export const globalThisShim = (() => {\n    if (typeof self !== \"undefined\") {\n        return self;\n    }\n    else if (typeof window !== \"undefined\") {\n        return window;\n    }\n    else {\n        return Function(\"return this\")();\n    }\n})();\n", "import { globalThisShim as globalThis } from \"./globalThis.js\";\nexport function pick(obj, ...attr) {\n    return attr.reduce((acc, k) => {\n        if (obj.hasOwnProperty(k)) {\n            acc[k] = obj[k];\n        }\n        return acc;\n    }, {});\n}\n// Keep a reference to the real timeout functions so they can be used when overridden\nconst NATIVE_SET_TIMEOUT = globalThis.setTimeout;\nconst NATIVE_CLEAR_TIMEOUT = globalThis.clearTimeout;\nexport function installTimerFunctions(obj, opts) {\n    if (opts.useNativeTimers) {\n        obj.setTimeoutFn = NATIVE_SET_TIMEOUT.bind(globalThis);\n        obj.clearTimeoutFn = NATIVE_CLEAR_TIMEOUT.bind(globalThis);\n    }\n    else {\n        obj.setTimeoutFn = globalThis.setTimeout.bind(globalThis);\n        obj.clearTimeoutFn = globalThis.clearTimeout.bind(globalThis);\n    }\n}\n// base64 encoded buffers are about 33% bigger (https://en.wikipedia.org/wiki/Base64)\nconst BASE64_OVERHEAD = 1.33;\n// we could also have used `new Blob([obj]).size`, but it isn't supported in IE9\nexport function byteLength(obj) {\n    if (typeof obj === \"string\") {\n        return utf8Length(obj);\n    }\n    // arraybuffer or blob\n    return Math.ceil((obj.byteLength || obj.size) * BASE64_OVERHEAD);\n}\nfunction utf8Length(str) {\n    let c = 0, length = 0;\n    for (let i = 0, l = str.length; i < l; i++) {\n        c = str.charCodeAt(i);\n        if (c < 0x80) {\n            length += 1;\n        }\n        else if (c < 0x800) {\n            length += 2;\n        }\n        else if (c < 0xd800 || c >= 0xe000) {\n            length += 3;\n        }\n        else {\n            i++;\n            length += 4;\n        }\n    }\n    return length;\n}\n", "// imported from https://github.com/galkn/querystring\n/**\n * Compiles a querystring\n * Returns string representation of the object\n *\n * @param {Object}\n * @api private\n */\nexport function encode(obj) {\n    let str = '';\n    for (let i in obj) {\n        if (obj.hasOwnProperty(i)) {\n            if (str.length)\n                str += '&';\n            str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);\n        }\n    }\n    return str;\n}\n/**\n * Parses a simple querystring into an object\n *\n * @param {String} qs\n * @api private\n */\nexport function decode(qs) {\n    let qry = {};\n    let pairs = qs.split('&');\n    for (let i = 0, l = pairs.length; i < l; i++) {\n        let pair = pairs[i].split('=');\n        qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);\n    }\n    return qry;\n}\n", "import { decodePacket } from \"engine.io-parser\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions } from \"./util.js\";\nimport { encode } from \"./contrib/parseqs.js\";\nexport class TransportError extends Error {\n    constructor(reason, description, context) {\n        super(reason);\n        this.description = description;\n        this.context = context;\n        this.type = \"TransportError\";\n    }\n}\nexport class Transport extends Emitter {\n    /**\n     * Transport abstract constructor.\n     *\n     * @param {Object} opts - options\n     * @protected\n     */\n    constructor(opts) {\n        super();\n        this.writable = false;\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.query = opts.query;\n        this.socket = opts.socket;\n    }\n    /**\n     * Emits an error.\n     *\n     * @param {String} reason\n     * @param description\n     * @param context - the error context\n     * @return {Transport} for chaining\n     * @protected\n     */\n    onError(reason, description, context) {\n        super.emitReserved(\"error\", new TransportError(reason, description, context));\n        return this;\n    }\n    /**\n     * Opens the transport.\n     */\n    open() {\n        this.readyState = \"opening\";\n        this.doOpen();\n        return this;\n    }\n    /**\n     * Closes the transport.\n     */\n    close() {\n        if (this.readyState === \"opening\" || this.readyState === \"open\") {\n            this.doClose();\n            this.onClose();\n        }\n        return this;\n    }\n    /**\n     * Sends multiple packets.\n     *\n     * @param {Array} packets\n     */\n    send(packets) {\n        if (this.readyState === \"open\") {\n            this.write(packets);\n        }\n        else {\n            // this might happen if the transport was silently closed in the beforeunload event handler\n        }\n    }\n    /**\n     * Called upon open\n     *\n     * @protected\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        this.writable = true;\n        super.emitReserved(\"open\");\n    }\n    /**\n     * Called with data.\n     *\n     * @param {String} data\n     * @protected\n     */\n    onData(data) {\n        const packet = decodePacket(data, this.socket.binaryType);\n        this.onPacket(packet);\n    }\n    /**\n     * Called with a decoded packet.\n     *\n     * @protected\n     */\n    onPacket(packet) {\n        super.emitReserved(\"packet\", packet);\n    }\n    /**\n     * Called upon close.\n     *\n     * @protected\n     */\n    onClose(details) {\n        this.readyState = \"closed\";\n        super.emitReserved(\"close\", details);\n    }\n    /**\n     * Pauses the transport, in order not to lose packets during an upgrade.\n     *\n     * @param onPause\n     */\n    pause(onPause) { }\n    createUri(schema, query = {}) {\n        return (schema +\n            \"://\" +\n            this._hostname() +\n            this._port() +\n            this.opts.path +\n            this._query(query));\n    }\n    _hostname() {\n        const hostname = this.opts.hostname;\n        return hostname.indexOf(\":\") === -1 ? hostname : \"[\" + hostname + \"]\";\n    }\n    _port() {\n        if (this.opts.port &&\n            ((this.opts.secure && Number(this.opts.port !== 443)) ||\n                (!this.opts.secure && Number(this.opts.port) !== 80))) {\n            return \":\" + this.opts.port;\n        }\n        else {\n            return \"\";\n        }\n    }\n    _query(query) {\n        const encodedQuery = encode(query);\n        return encodedQuery.length ? \"?\" + encodedQuery : \"\";\n    }\n}\n", "// imported from https://github.com/unshiftio/yeast\n'use strict';\nconst alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split(''), length = 64, map = {};\nlet seed = 0, i = 0, prev;\n/**\n * Return a string representing the specified number.\n *\n * @param {Number} num The number to convert.\n * @returns {String} The string representation of the number.\n * @api public\n */\nexport function encode(num) {\n    let encoded = '';\n    do {\n        encoded = alphabet[num % length] + encoded;\n        num = Math.floor(num / length);\n    } while (num > 0);\n    return encoded;\n}\n/**\n * Return the integer value specified by the given string.\n *\n * @param {String} str The string to convert.\n * @returns {Number} The integer value represented by the string.\n * @api public\n */\nexport function decode(str) {\n    let decoded = 0;\n    for (i = 0; i < str.length; i++) {\n        decoded = decoded * length + map[str.charAt(i)];\n    }\n    return decoded;\n}\n/**\n * Yeast: A tiny growing id generator.\n *\n * @returns {String} A unique id.\n * @api public\n */\nexport function yeast() {\n    const now = encode(+new Date());\n    if (now !== prev)\n        return seed = 0, prev = now;\n    return now + '.' + encode(seed++);\n}\n//\n// Map each character to its index.\n//\nfor (; i < length; i++)\n    map[alphabet[i]] = i;\n", "// imported from https://github.com/component/has-cors\nlet value = false;\ntry {\n    value = typeof XMLHttpRequest !== 'undefined' &&\n        'withCredentials' in new XMLHttpRequest();\n}\ncatch (err) {\n    // if XMLHttp support is disabled in IE then it will throw\n    // when trying to create\n}\nexport const hasCORS = value;\n", "// browser shim for xmlhttprequest module\nimport { hasCORS } from \"../contrib/has-cors.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nexport function XHR(opts) {\n    const xdomain = opts.xdomain;\n    // XMLHttpRequest can be disabled on IE\n    try {\n        if (\"undefined\" !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {\n            return new XMLHttpRequest();\n        }\n    }\n    catch (e) { }\n    if (!xdomain) {\n        try {\n            return new globalThis[[\"Active\"].concat(\"Object\").join(\"X\")](\"Microsoft.XMLHTTP\");\n        }\n        catch (e) { }\n    }\n}\nexport function createCookieJar() { }\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { encodePayload, decodePayload } from \"engine.io-parser\";\nimport { createCookieJar, XHR as XMLHttpRequest, } from \"./xmlhttprequest.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions, pick } from \"../util.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nfunction empty() { }\nconst hasXHR2 = (function () {\n    const xhr = new XMLHttpRequest({\n        xdomain: false,\n    });\n    return null != xhr.responseType;\n})();\nexport class Polling extends Transport {\n    /**\n     * XHR Polling constructor.\n     *\n     * @param {Object} opts\n     * @package\n     */\n    constructor(opts) {\n        super(opts);\n        this.polling = false;\n        if (typeof location !== \"undefined\") {\n            const isSSL = \"https:\" === location.protocol;\n            let port = location.port;\n            // some user agents have empty `location.port`\n            if (!port) {\n                port = isSSL ? \"443\" : \"80\";\n            }\n            this.xd =\n                (typeof location !== \"undefined\" &&\n                    opts.hostname !== location.hostname) ||\n                    port !== opts.port;\n        }\n        /**\n         * XHR supports binary\n         */\n        const forceBase64 = opts && opts.forceBase64;\n        this.supportsBinary = hasXHR2 && !forceBase64;\n        if (this.opts.withCredentials) {\n            this.cookieJar = createCookieJar();\n        }\n    }\n    get name() {\n        return \"polling\";\n    }\n    /**\n     * Opens the socket (triggers polling). We write a PING message to determine\n     * when the transport is open.\n     *\n     * @protected\n     */\n    doOpen() {\n        this.poll();\n    }\n    /**\n     * Pauses polling.\n     *\n     * @param {Function} onPause - callback upon buffers are flushed and transport is paused\n     * @package\n     */\n    pause(onPause) {\n        this.readyState = \"pausing\";\n        const pause = () => {\n            this.readyState = \"paused\";\n            onPause();\n        };\n        if (this.polling || !this.writable) {\n            let total = 0;\n            if (this.polling) {\n                total++;\n                this.once(\"pollComplete\", function () {\n                    --total || pause();\n                });\n            }\n            if (!this.writable) {\n                total++;\n                this.once(\"drain\", function () {\n                    --total || pause();\n                });\n            }\n        }\n        else {\n            pause();\n        }\n    }\n    /**\n     * Starts polling cycle.\n     *\n     * @private\n     */\n    poll() {\n        this.polling = true;\n        this.doPoll();\n        this.emitReserved(\"poll\");\n    }\n    /**\n     * Overloads onData to detect payloads.\n     *\n     * @protected\n     */\n    onData(data) {\n        const callback = (packet) => {\n            // if its the first message we consider the transport open\n            if (\"opening\" === this.readyState && packet.type === \"open\") {\n                this.onOpen();\n            }\n            // if its a close packet, we close the ongoing requests\n            if (\"close\" === packet.type) {\n                this.onClose({ description: \"transport closed by the server\" });\n                return false;\n            }\n            // otherwise bypass onData and handle the message\n            this.onPacket(packet);\n        };\n        // decode payload\n        decodePayload(data, this.socket.binaryType).forEach(callback);\n        // if an event did not trigger closing\n        if (\"closed\" !== this.readyState) {\n            // if we got data we're not polling\n            this.polling = false;\n            this.emitReserved(\"pollComplete\");\n            if (\"open\" === this.readyState) {\n                this.poll();\n            }\n            else {\n            }\n        }\n    }\n    /**\n     * For polling, send a close packet.\n     *\n     * @protected\n     */\n    doClose() {\n        const close = () => {\n            this.write([{ type: \"close\" }]);\n        };\n        if (\"open\" === this.readyState) {\n            close();\n        }\n        else {\n            // in case we're trying to close while\n            // handshaking is in progress (GH-164)\n            this.once(\"open\", close);\n        }\n    }\n    /**\n     * Writes a packets payload.\n     *\n     * @param {Array} packets - data packets\n     * @protected\n     */\n    write(packets) {\n        this.writable = false;\n        encodePayload(packets, (data) => {\n            this.doWrite(data, () => {\n                this.writable = true;\n                this.emitReserved(\"drain\");\n            });\n        });\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"https\" : \"http\";\n        const query = this.query || {};\n        // cache busting is forced\n        if (false !== this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        if (!this.supportsBinary && !query.sid) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Creates a request.\n     *\n     * @param {String} method\n     * @private\n     */\n    request(opts = {}) {\n        Object.assign(opts, { xd: this.xd, cookieJar: this.cookieJar }, this.opts);\n        return new Request(this.uri(), opts);\n    }\n    /**\n     * Sends data.\n     *\n     * @param {String} data to send.\n     * @param {Function} called upon flush.\n     * @private\n     */\n    doWrite(data, fn) {\n        const req = this.request({\n            method: \"POST\",\n            data: data,\n        });\n        req.on(\"success\", fn);\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr post error\", xhrStatus, context);\n        });\n    }\n    /**\n     * Starts a poll cycle.\n     *\n     * @private\n     */\n    doPoll() {\n        const req = this.request();\n        req.on(\"data\", this.onData.bind(this));\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr poll error\", xhrStatus, context);\n        });\n        this.pollXhr = req;\n    }\n}\nexport class Request extends Emitter {\n    /**\n     * Request constructor\n     *\n     * @param {Object} options\n     * @package\n     */\n    constructor(uri, opts) {\n        super();\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.method = opts.method || \"GET\";\n        this.uri = uri;\n        this.data = undefined !== opts.data ? opts.data : null;\n        this.create();\n    }\n    /**\n     * Creates the XHR object and sends the request.\n     *\n     * @private\n     */\n    create() {\n        var _a;\n        const opts = pick(this.opts, \"agent\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"autoUnref\");\n        opts.xdomain = !!this.opts.xd;\n        const xhr = (this.xhr = new XMLHttpRequest(opts));\n        try {\n            xhr.open(this.method, this.uri, true);\n            try {\n                if (this.opts.extraHeaders) {\n                    xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);\n                    for (let i in this.opts.extraHeaders) {\n                        if (this.opts.extraHeaders.hasOwnProperty(i)) {\n                            xhr.setRequestHeader(i, this.opts.extraHeaders[i]);\n                        }\n                    }\n                }\n            }\n            catch (e) { }\n            if (\"POST\" === this.method) {\n                try {\n                    xhr.setRequestHeader(\"Content-type\", \"text/plain;charset=UTF-8\");\n                }\n                catch (e) { }\n            }\n            try {\n                xhr.setRequestHeader(\"Accept\", \"*/*\");\n            }\n            catch (e) { }\n            (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.addCookies(xhr);\n            // ie6 check\n            if (\"withCredentials\" in xhr) {\n                xhr.withCredentials = this.opts.withCredentials;\n            }\n            if (this.opts.requestTimeout) {\n                xhr.timeout = this.opts.requestTimeout;\n            }\n            xhr.onreadystatechange = () => {\n                var _a;\n                if (xhr.readyState === 3) {\n                    (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.parseCookies(xhr);\n                }\n                if (4 !== xhr.readyState)\n                    return;\n                if (200 === xhr.status || 1223 === xhr.status) {\n                    this.onLoad();\n                }\n                else {\n                    // make sure the `error` event handler that's user-set\n                    // does not throw in the same tick and gets caught here\n                    this.setTimeoutFn(() => {\n                        this.onError(typeof xhr.status === \"number\" ? xhr.status : 0);\n                    }, 0);\n                }\n            };\n            xhr.send(this.data);\n        }\n        catch (e) {\n            // Need to defer since .create() is called directly from the constructor\n            // and thus the 'error' event can only be only bound *after* this exception\n            // occurs.  Therefore, also, we cannot throw here at all.\n            this.setTimeoutFn(() => {\n                this.onError(e);\n            }, 0);\n            return;\n        }\n        if (typeof document !== \"undefined\") {\n            this.index = Request.requestsCount++;\n            Request.requests[this.index] = this;\n        }\n    }\n    /**\n     * Called upon error.\n     *\n     * @private\n     */\n    onError(err) {\n        this.emitReserved(\"error\", err, this.xhr);\n        this.cleanup(true);\n    }\n    /**\n     * Cleans up house.\n     *\n     * @private\n     */\n    cleanup(fromError) {\n        if (\"undefined\" === typeof this.xhr || null === this.xhr) {\n            return;\n        }\n        this.xhr.onreadystatechange = empty;\n        if (fromError) {\n            try {\n                this.xhr.abort();\n            }\n            catch (e) { }\n        }\n        if (typeof document !== \"undefined\") {\n            delete Request.requests[this.index];\n        }\n        this.xhr = null;\n    }\n    /**\n     * Called upon load.\n     *\n     * @private\n     */\n    onLoad() {\n        const data = this.xhr.responseText;\n        if (data !== null) {\n            this.emitReserved(\"data\", data);\n            this.emitReserved(\"success\");\n            this.cleanup();\n        }\n    }\n    /**\n     * Aborts the request.\n     *\n     * @package\n     */\n    abort() {\n        this.cleanup();\n    }\n}\nRequest.requestsCount = 0;\nRequest.requests = {};\n/**\n * Aborts pending requests when unloading the window. This is needed to prevent\n * memory leaks (e.g. when using IE) and to ensure that no spurious error is\n * emitted.\n */\nif (typeof document !== \"undefined\") {\n    // @ts-ignore\n    if (typeof attachEvent === \"function\") {\n        // @ts-ignore\n        attachEvent(\"onunload\", unloadHandler);\n    }\n    else if (typeof addEventListener === \"function\") {\n        const terminationEvent = \"onpagehide\" in globalThis ? \"pagehide\" : \"unload\";\n        addEventListener(terminationEvent, unloadHandler, false);\n    }\n}\nfunction unloadHandler() {\n    for (let i in Request.requests) {\n        if (Request.requests.hasOwnProperty(i)) {\n            Request.requests[i].abort();\n        }\n    }\n}\n", "import { globalThisShim as globalThis } from \"../globalThis.js\";\nexport const nextTick = (() => {\n    const isPromiseAvailable = typeof Promise === \"function\" && typeof Promise.resolve === \"function\";\n    if (isPromiseAvailable) {\n        return (cb) => Promise.resolve().then(cb);\n    }\n    else {\n        return (cb, setTimeoutFn) => setTimeoutFn(cb, 0);\n    }\n})();\nexport const WebSocket = globalThis.WebSocket || globalThis.MozWebSocket;\nexport const usingBrowserWebSocket = true;\nexport const defaultBinaryType = \"arraybuffer\";\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { pick } from \"../util.js\";\nimport { nextTick, usingBrowserWebSocket, WebSocket, } from \"./websocket-constructor.js\";\nimport { encodePacket } from \"engine.io-parser\";\n// detect ReactNative environment\nconst isReactNative = typeof navigator !== \"undefined\" &&\n    typeof navigator.product === \"string\" &&\n    navigator.product.toLowerCase() === \"reactnative\";\nexport class WS extends Transport {\n    /**\n     * WebSocket transport constructor.\n     *\n     * @param {Object} opts - connection options\n     * @protected\n     */\n    constructor(opts) {\n        super(opts);\n        this.supportsBinary = !opts.forceBase64;\n    }\n    get name() {\n        return \"websocket\";\n    }\n    doOpen() {\n        if (!this.check()) {\n            // let probe timeout\n            return;\n        }\n        const uri = this.uri();\n        const protocols = this.opts.protocols;\n        // React Native only supports the 'headers' option, and will print a warning if anything else is passed\n        const opts = isReactNative\n            ? {}\n            : pick(this.opts, \"agent\", \"perMessageDeflate\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"localAddress\", \"protocolVersion\", \"origin\", \"maxPayload\", \"family\", \"checkServerIdentity\");\n        if (this.opts.extraHeaders) {\n            opts.headers = this.opts.extraHeaders;\n        }\n        try {\n            this.ws =\n                usingBrowserWebSocket && !isReactNative\n                    ? protocols\n                        ? new WebSocket(uri, protocols)\n                        : new WebSocket(uri)\n                    : new WebSocket(uri, protocols, opts);\n        }\n        catch (err) {\n            return this.emitReserved(\"error\", err);\n        }\n        this.ws.binaryType = this.socket.binaryType;\n        this.addEventListeners();\n    }\n    /**\n     * Adds event listeners to the socket\n     *\n     * @private\n     */\n    addEventListeners() {\n        this.ws.onopen = () => {\n            if (this.opts.autoUnref) {\n                this.ws._socket.unref();\n            }\n            this.onOpen();\n        };\n        this.ws.onclose = (closeEvent) => this.onClose({\n            description: \"websocket connection closed\",\n            context: closeEvent,\n        });\n        this.ws.onmessage = (ev) => this.onData(ev.data);\n        this.ws.onerror = (e) => this.onError(\"websocket error\", e);\n    }\n    write(packets) {\n        this.writable = false;\n        // encodePacket efficient as it uses WS framing\n        // no need for encodePayload\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            encodePacket(packet, this.supportsBinary, (data) => {\n                // always create a new object (GH-437)\n                const opts = {};\n                if (!usingBrowserWebSocket) {\n                    if (packet.options) {\n                        opts.compress = packet.options.compress;\n                    }\n                    if (this.opts.perMessageDeflate) {\n                        const len = \n                        // @ts-ignore\n                        \"string\" === typeof data ? Buffer.byteLength(data) : data.length;\n                        if (len < this.opts.perMessageDeflate.threshold) {\n                            opts.compress = false;\n                        }\n                    }\n                }\n                // Sometimes the websocket has already been closed but the browser didn't\n                // have a chance of informing us about it yet, in that case send will\n                // throw an error\n                try {\n                    if (usingBrowserWebSocket) {\n                        // TypeError is thrown when passing the second argument on Safari\n                        this.ws.send(data);\n                    }\n                    else {\n                        this.ws.send(data, opts);\n                    }\n                }\n                catch (e) {\n                }\n                if (lastPacket) {\n                    // fake drain\n                    // defer to next tick to allow Socket to clear writeBuffer\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        if (typeof this.ws !== \"undefined\") {\n            this.ws.close();\n            this.ws = null;\n        }\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"wss\" : \"ws\";\n        const query = this.query || {};\n        // append timestamp to URI\n        if (this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        // communicate binary support capabilities\n        if (!this.supportsBinary) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Feature detection for WebSocket.\n     *\n     * @return {Boolean} whether this transport is available.\n     * @private\n     */\n    check() {\n        return !!WebSocket;\n    }\n}\n", "import { Transport } from \"../transport.js\";\nimport { nextTick } from \"./websocket-constructor.js\";\nimport { createPacketDecoderStream, createPacketEncoderStream, } from \"engine.io-parser\";\nexport class WT extends Transport {\n    get name() {\n        return \"webtransport\";\n    }\n    doOpen() {\n        // @ts-ignore\n        if (typeof WebTransport !== \"function\") {\n            return;\n        }\n        // @ts-ignore\n        this.transport = new WebTransport(this.createUri(\"https\"), this.opts.transportOptions[this.name]);\n        this.transport.closed\n            .then(() => {\n            this.onClose();\n        })\n            .catch((err) => {\n            this.onError(\"webtransport error\", err);\n        });\n        // note: we could have used async/await, but that would require some additional polyfills\n        this.transport.ready.then(() => {\n            this.transport.createBidirectionalStream().then((stream) => {\n                const decoderStream = createPacketDecoderStream(Number.MAX_SAFE_INTEGER, this.socket.binaryType);\n                const reader = stream.readable.pipeThrough(decoderStream).getReader();\n                const encoderStream = createPacketEncoderStream();\n                encoderStream.readable.pipeTo(stream.writable);\n                this.writer = encoderStream.writable.getWriter();\n                const read = () => {\n                    reader\n                        .read()\n                        .then(({ done, value }) => {\n                        if (done) {\n                            return;\n                        }\n                        this.onPacket(value);\n                        read();\n                    })\n                        .catch((err) => {\n                    });\n                };\n                read();\n                const packet = { type: \"open\" };\n                if (this.query.sid) {\n                    packet.data = `{\"sid\":\"${this.query.sid}\"}`;\n                }\n                this.writer.write(packet).then(() => this.onOpen());\n            });\n        });\n    }\n    write(packets) {\n        this.writable = false;\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            this.writer.write(packet).then(() => {\n                if (lastPacket) {\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        var _a;\n        (_a = this.transport) === null || _a === void 0 ? void 0 : _a.close();\n    }\n}\n", "import { Polling } from \"./polling.js\";\nimport { WS } from \"./websocket.js\";\nimport { WT } from \"./webtransport.js\";\nexport const transports = {\n    websocket: WS,\n    webtransport: WT,\n    polling: Polling,\n};\n", "// imported from https://github.com/galkn/parseuri\n/**\n * Parses a URI\n *\n * Note: we could also have used the built-in URL object, but it isn't supported on all platforms.\n *\n * See:\n * - https://developer.mozilla.org/en-US/docs/Web/API/URL\n * - https://caniuse.com/url\n * - https://www.rfc-editor.org/rfc/rfc3986#appendix-B\n *\n * History of the parse() method:\n * - first commit: https://github.com/socketio/socket.io-client/commit/4ee1d5d94b3906a9c052b459f1a818b15f38f91c\n * - export into its own module: https://github.com/socketio/engine.io-client/commit/de2c561e4564efeb78f1bdb1ba39ef81b2822cb3\n * - reimport: https://github.com/socketio/engine.io-client/commit/df32277c3f6d622eec5ed09f493cae3f3391d242\n *\n * @author Steven Levithan <stevenlevithan.com> (MIT license)\n * @api private\n */\nconst re = /^(?:(?![^:@\\/?#]+:[^:@\\/]*@)(http|https|ws|wss):\\/\\/)?((?:(([^:@\\/?#]*)(?::([^:@\\/?#]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\\/?#]*)(?::(\\d*))?)(((\\/(?:[^?#](?![^?#\\/]*\\.[^?#\\/.]+(?:[?#]|$)))*\\/?)?([^?#\\/]*))(?:\\?([^#]*))?(?:#(.*))?)/;\nconst parts = [\n    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'\n];\nexport function parse(str) {\n    if (str.length > 2000) {\n        throw \"URI too long\";\n    }\n    const src = str, b = str.indexOf('['), e = str.indexOf(']');\n    if (b != -1 && e != -1) {\n        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);\n    }\n    let m = re.exec(str || ''), uri = {}, i = 14;\n    while (i--) {\n        uri[parts[i]] = m[i] || '';\n    }\n    if (b != -1 && e != -1) {\n        uri.source = src;\n        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');\n        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');\n        uri.ipv6uri = true;\n    }\n    uri.pathNames = pathNames(uri, uri['path']);\n    uri.queryKey = queryKey(uri, uri['query']);\n    return uri;\n}\nfunction pathNames(obj, path) {\n    const regx = /\\/{2,9}/g, names = path.replace(regx, \"/\").split(\"/\");\n    if (path.slice(0, 1) == '/' || path.length === 0) {\n        names.splice(0, 1);\n    }\n    if (path.slice(-1) == '/') {\n        names.splice(names.length - 1, 1);\n    }\n    return names;\n}\nfunction queryKey(uri, query) {\n    const data = {};\n    query.replace(/(?:^|&)([^&=]*)=?([^&]*)/g, function ($0, $1, $2) {\n        if ($1) {\n            data[$1] = $2;\n        }\n    });\n    return data;\n}\n", "import { transports } from \"./transports/index.js\";\nimport { installTimerFunctions, byteLength } from \"./util.js\";\nimport { decode } from \"./contrib/parseqs.js\";\nimport { parse } from \"./contrib/parseuri.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { protocol } from \"engine.io-parser\";\nimport { defaultBinaryType } from \"./transports/websocket-constructor.js\";\nexport class Socket extends Emitter {\n    /**\n     * Socket constructor.\n     *\n     * @param {String|Object} uri - uri or options\n     * @param {Object} opts - options\n     */\n    constructor(uri, opts = {}) {\n        super();\n        this.binaryType = defaultBinaryType;\n        this.writeBuffer = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = null;\n        }\n        if (uri) {\n            uri = parse(uri);\n            opts.hostname = uri.host;\n            opts.secure = uri.protocol === \"https\" || uri.protocol === \"wss\";\n            opts.port = uri.port;\n            if (uri.query)\n                opts.query = uri.query;\n        }\n        else if (opts.host) {\n            opts.hostname = parse(opts.host).host;\n        }\n        installTimerFunctions(this, opts);\n        this.secure =\n            null != opts.secure\n                ? opts.secure\n                : typeof location !== \"undefined\" && \"https:\" === location.protocol;\n        if (opts.hostname && !opts.port) {\n            // if no port is specified manually, use the protocol default\n            opts.port = this.secure ? \"443\" : \"80\";\n        }\n        this.hostname =\n            opts.hostname ||\n                (typeof location !== \"undefined\" ? location.hostname : \"localhost\");\n        this.port =\n            opts.port ||\n                (typeof location !== \"undefined\" && location.port\n                    ? location.port\n                    : this.secure\n                        ? \"443\"\n                        : \"80\");\n        this.transports = opts.transports || [\n            \"polling\",\n            \"websocket\",\n            \"webtransport\",\n        ];\n        this.writeBuffer = [];\n        this.prevBufferLen = 0;\n        this.opts = Object.assign({\n            path: \"/engine.io\",\n            agent: false,\n            withCredentials: false,\n            upgrade: true,\n            timestampParam: \"t\",\n            rememberUpgrade: false,\n            addTrailingSlash: true,\n            rejectUnauthorized: true,\n            perMessageDeflate: {\n                threshold: 1024,\n            },\n            transportOptions: {},\n            closeOnBeforeunload: false,\n        }, opts);\n        this.opts.path =\n            this.opts.path.replace(/\\/$/, \"\") +\n                (this.opts.addTrailingSlash ? \"/\" : \"\");\n        if (typeof this.opts.query === \"string\") {\n            this.opts.query = decode(this.opts.query);\n        }\n        // set on handshake\n        this.id = null;\n        this.upgrades = null;\n        this.pingInterval = null;\n        this.pingTimeout = null;\n        // set on heartbeat\n        this.pingTimeoutTimer = null;\n        if (typeof addEventListener === \"function\") {\n            if (this.opts.closeOnBeforeunload) {\n                // Firefox closes the connection when the \"beforeunload\" event is emitted but not Chrome. This event listener\n                // ensures every browser behaves the same (no \"disconnect\" event at the Socket.IO level when the page is\n                // closed/reloaded)\n                this.beforeunloadEventListener = () => {\n                    if (this.transport) {\n                        // silently close the transport\n                        this.transport.removeAllListeners();\n                        this.transport.close();\n                    }\n                };\n                addEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n            }\n            if (this.hostname !== \"localhost\") {\n                this.offlineEventListener = () => {\n                    this.onClose(\"transport close\", {\n                        description: \"network connection lost\",\n                    });\n                };\n                addEventListener(\"offline\", this.offlineEventListener, false);\n            }\n        }\n        this.open();\n    }\n    /**\n     * Creates transport of the given type.\n     *\n     * @param {String} name - transport name\n     * @return {Transport}\n     * @private\n     */\n    createTransport(name) {\n        const query = Object.assign({}, this.opts.query);\n        // append engine.io protocol identifier\n        query.EIO = protocol;\n        // transport name\n        query.transport = name;\n        // session id if we already have one\n        if (this.id)\n            query.sid = this.id;\n        const opts = Object.assign({}, this.opts, {\n            query,\n            socket: this,\n            hostname: this.hostname,\n            secure: this.secure,\n            port: this.port,\n        }, this.opts.transportOptions[name]);\n        return new transports[name](opts);\n    }\n    /**\n     * Initializes transport to use and starts probe.\n     *\n     * @private\n     */\n    open() {\n        let transport;\n        if (this.opts.rememberUpgrade &&\n            Socket.priorWebsocketSuccess &&\n            this.transports.indexOf(\"websocket\") !== -1) {\n            transport = \"websocket\";\n        }\n        else if (0 === this.transports.length) {\n            // Emit error on next tick so it can be listened to\n            this.setTimeoutFn(() => {\n                this.emitReserved(\"error\", \"No transports available\");\n            }, 0);\n            return;\n        }\n        else {\n            transport = this.transports[0];\n        }\n        this.readyState = \"opening\";\n        // Retry with the next transport if the transport is disabled (jsonp: false)\n        try {\n            transport = this.createTransport(transport);\n        }\n        catch (e) {\n            this.transports.shift();\n            this.open();\n            return;\n        }\n        transport.open();\n        this.setTransport(transport);\n    }\n    /**\n     * Sets the current transport. Disables the existing one (if any).\n     *\n     * @private\n     */\n    setTransport(transport) {\n        if (this.transport) {\n            this.transport.removeAllListeners();\n        }\n        // set up transport\n        this.transport = transport;\n        // set up transport listeners\n        transport\n            .on(\"drain\", this.onDrain.bind(this))\n            .on(\"packet\", this.onPacket.bind(this))\n            .on(\"error\", this.onError.bind(this))\n            .on(\"close\", (reason) => this.onClose(\"transport close\", reason));\n    }\n    /**\n     * Probes a transport.\n     *\n     * @param {String} name - transport name\n     * @private\n     */\n    probe(name) {\n        let transport = this.createTransport(name);\n        let failed = false;\n        Socket.priorWebsocketSuccess = false;\n        const onTransportOpen = () => {\n            if (failed)\n                return;\n            transport.send([{ type: \"ping\", data: \"probe\" }]);\n            transport.once(\"packet\", (msg) => {\n                if (failed)\n                    return;\n                if (\"pong\" === msg.type && \"probe\" === msg.data) {\n                    this.upgrading = true;\n                    this.emitReserved(\"upgrading\", transport);\n                    if (!transport)\n                        return;\n                    Socket.priorWebsocketSuccess = \"websocket\" === transport.name;\n                    this.transport.pause(() => {\n                        if (failed)\n                            return;\n                        if (\"closed\" === this.readyState)\n                            return;\n                        cleanup();\n                        this.setTransport(transport);\n                        transport.send([{ type: \"upgrade\" }]);\n                        this.emitReserved(\"upgrade\", transport);\n                        transport = null;\n                        this.upgrading = false;\n                        this.flush();\n                    });\n                }\n                else {\n                    const err = new Error(\"probe error\");\n                    // @ts-ignore\n                    err.transport = transport.name;\n                    this.emitReserved(\"upgradeError\", err);\n                }\n            });\n        };\n        function freezeTransport() {\n            if (failed)\n                return;\n            // Any callback called by transport should be ignored since now\n            failed = true;\n            cleanup();\n            transport.close();\n            transport = null;\n        }\n        // Handle any error that happens while probing\n        const onerror = (err) => {\n            const error = new Error(\"probe error: \" + err);\n            // @ts-ignore\n            error.transport = transport.name;\n            freezeTransport();\n            this.emitReserved(\"upgradeError\", error);\n        };\n        function onTransportClose() {\n            onerror(\"transport closed\");\n        }\n        // When the socket is closed while we're probing\n        function onclose() {\n            onerror(\"socket closed\");\n        }\n        // When the socket is upgraded while we're probing\n        function onupgrade(to) {\n            if (transport && to.name !== transport.name) {\n                freezeTransport();\n            }\n        }\n        // Remove all listeners on the transport and on self\n        const cleanup = () => {\n            transport.removeListener(\"open\", onTransportOpen);\n            transport.removeListener(\"error\", onerror);\n            transport.removeListener(\"close\", onTransportClose);\n            this.off(\"close\", onclose);\n            this.off(\"upgrading\", onupgrade);\n        };\n        transport.once(\"open\", onTransportOpen);\n        transport.once(\"error\", onerror);\n        transport.once(\"close\", onTransportClose);\n        this.once(\"close\", onclose);\n        this.once(\"upgrading\", onupgrade);\n        if (this.upgrades.indexOf(\"webtransport\") !== -1 &&\n            name !== \"webtransport\") {\n            // favor WebTransport\n            this.setTimeoutFn(() => {\n                if (!failed) {\n                    transport.open();\n                }\n            }, 200);\n        }\n        else {\n            transport.open();\n        }\n    }\n    /**\n     * Called when connection is deemed open.\n     *\n     * @private\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        Socket.priorWebsocketSuccess = \"websocket\" === this.transport.name;\n        this.emitReserved(\"open\");\n        this.flush();\n        // we check for `readyState` in case an `open`\n        // listener already closed the socket\n        if (\"open\" === this.readyState && this.opts.upgrade) {\n            let i = 0;\n            const l = this.upgrades.length;\n            for (; i < l; i++) {\n                this.probe(this.upgrades[i]);\n            }\n        }\n    }\n    /**\n     * Handles a packet.\n     *\n     * @private\n     */\n    onPacket(packet) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            this.emitReserved(\"packet\", packet);\n            // Socket is live - any packet counts\n            this.emitReserved(\"heartbeat\");\n            this.resetPingTimeout();\n            switch (packet.type) {\n                case \"open\":\n                    this.onHandshake(JSON.parse(packet.data));\n                    break;\n                case \"ping\":\n                    this.sendPacket(\"pong\");\n                    this.emitReserved(\"ping\");\n                    this.emitReserved(\"pong\");\n                    break;\n                case \"error\":\n                    const err = new Error(\"server error\");\n                    // @ts-ignore\n                    err.code = packet.data;\n                    this.onError(err);\n                    break;\n                case \"message\":\n                    this.emitReserved(\"data\", packet.data);\n                    this.emitReserved(\"message\", packet.data);\n                    break;\n            }\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon handshake completion.\n     *\n     * @param {Object} data - handshake obj\n     * @private\n     */\n    onHandshake(data) {\n        this.emitReserved(\"handshake\", data);\n        this.id = data.sid;\n        this.transport.query.sid = data.sid;\n        this.upgrades = this.filterUpgrades(data.upgrades);\n        this.pingInterval = data.pingInterval;\n        this.pingTimeout = data.pingTimeout;\n        this.maxPayload = data.maxPayload;\n        this.onOpen();\n        // In case open handler closes socket\n        if (\"closed\" === this.readyState)\n            return;\n        this.resetPingTimeout();\n    }\n    /**\n     * Sets and resets ping timeout timer based on server pings.\n     *\n     * @private\n     */\n    resetPingTimeout() {\n        this.clearTimeoutFn(this.pingTimeoutTimer);\n        this.pingTimeoutTimer = this.setTimeoutFn(() => {\n            this.onClose(\"ping timeout\");\n        }, this.pingInterval + this.pingTimeout);\n        if (this.opts.autoUnref) {\n            this.pingTimeoutTimer.unref();\n        }\n    }\n    /**\n     * Called on `drain` event\n     *\n     * @private\n     */\n    onDrain() {\n        this.writeBuffer.splice(0, this.prevBufferLen);\n        // setting prevBufferLen = 0 is very important\n        // for example, when upgrading, upgrade packet is sent over,\n        // and a nonzero prevBufferLen could cause problems on `drain`\n        this.prevBufferLen = 0;\n        if (0 === this.writeBuffer.length) {\n            this.emitReserved(\"drain\");\n        }\n        else {\n            this.flush();\n        }\n    }\n    /**\n     * Flush write buffers.\n     *\n     * @private\n     */\n    flush() {\n        if (\"closed\" !== this.readyState &&\n            this.transport.writable &&\n            !this.upgrading &&\n            this.writeBuffer.length) {\n            const packets = this.getWritablePackets();\n            this.transport.send(packets);\n            // keep track of current length of writeBuffer\n            // splice writeBuffer and callbackBuffer on `drain`\n            this.prevBufferLen = packets.length;\n            this.emitReserved(\"flush\");\n        }\n    }\n    /**\n     * Ensure the encoded size of the writeBuffer is below the maxPayload value sent by the server (only for HTTP\n     * long-polling)\n     *\n     * @private\n     */\n    getWritablePackets() {\n        const shouldCheckPayloadSize = this.maxPayload &&\n            this.transport.name === \"polling\" &&\n            this.writeBuffer.length > 1;\n        if (!shouldCheckPayloadSize) {\n            return this.writeBuffer;\n        }\n        let payloadSize = 1; // first packet type\n        for (let i = 0; i < this.writeBuffer.length; i++) {\n            const data = this.writeBuffer[i].data;\n            if (data) {\n                payloadSize += byteLength(data);\n            }\n            if (i > 0 && payloadSize > this.maxPayload) {\n                return this.writeBuffer.slice(0, i);\n            }\n            payloadSize += 2; // separator + packet type\n        }\n        return this.writeBuffer;\n    }\n    /**\n     * Sends a message.\n     *\n     * @param {String} msg - message.\n     * @param {Object} options.\n     * @param {Function} callback function.\n     * @return {Socket} for chaining.\n     */\n    write(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    send(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param {String} type: packet type.\n     * @param {String} data.\n     * @param {Object} options.\n     * @param {Function} fn - callback function.\n     * @private\n     */\n    sendPacket(type, data, options, fn) {\n        if (\"function\" === typeof data) {\n            fn = data;\n            data = undefined;\n        }\n        if (\"function\" === typeof options) {\n            fn = options;\n            options = null;\n        }\n        if (\"closing\" === this.readyState || \"closed\" === this.readyState) {\n            return;\n        }\n        options = options || {};\n        options.compress = false !== options.compress;\n        const packet = {\n            type: type,\n            data: data,\n            options: options,\n        };\n        this.emitReserved(\"packetCreate\", packet);\n        this.writeBuffer.push(packet);\n        if (fn)\n            this.once(\"flush\", fn);\n        this.flush();\n    }\n    /**\n     * Closes the connection.\n     */\n    close() {\n        const close = () => {\n            this.onClose(\"forced close\");\n            this.transport.close();\n        };\n        const cleanupAndClose = () => {\n            this.off(\"upgrade\", cleanupAndClose);\n            this.off(\"upgradeError\", cleanupAndClose);\n            close();\n        };\n        const waitForUpgrade = () => {\n            // wait for upgrade to finish since we can't send packets while pausing a transport\n            this.once(\"upgrade\", cleanupAndClose);\n            this.once(\"upgradeError\", cleanupAndClose);\n        };\n        if (\"opening\" === this.readyState || \"open\" === this.readyState) {\n            this.readyState = \"closing\";\n            if (this.writeBuffer.length) {\n                this.once(\"drain\", () => {\n                    if (this.upgrading) {\n                        waitForUpgrade();\n                    }\n                    else {\n                        close();\n                    }\n                });\n            }\n            else if (this.upgrading) {\n                waitForUpgrade();\n            }\n            else {\n                close();\n            }\n        }\n        return this;\n    }\n    /**\n     * Called upon transport error\n     *\n     * @private\n     */\n    onError(err) {\n        Socket.priorWebsocketSuccess = false;\n        this.emitReserved(\"error\", err);\n        this.onClose(\"transport error\", err);\n    }\n    /**\n     * Called upon transport close.\n     *\n     * @private\n     */\n    onClose(reason, description) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            // clear timers\n            this.clearTimeoutFn(this.pingTimeoutTimer);\n            // stop event from firing again for transport\n            this.transport.removeAllListeners(\"close\");\n            // ensure transport won't stay open\n            this.transport.close();\n            // ignore further transport communication\n            this.transport.removeAllListeners();\n            if (typeof removeEventListener === \"function\") {\n                removeEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n                removeEventListener(\"offline\", this.offlineEventListener, false);\n            }\n            // set ready state\n            this.readyState = \"closed\";\n            // clear session id\n            this.id = null;\n            // emit close event\n            this.emitReserved(\"close\", reason, description);\n            // clean buffers after, so users can still\n            // grab the buffers on `close` event\n            this.writeBuffer = [];\n            this.prevBufferLen = 0;\n        }\n    }\n    /**\n     * Filters upgrades, returning only those matching client transports.\n     *\n     * @param {Array} upgrades - server upgrades\n     * @private\n     */\n    filterUpgrades(upgrades) {\n        const filteredUpgrades = [];\n        let i = 0;\n        const j = upgrades.length;\n        for (; i < j; i++) {\n            if (~this.transports.indexOf(upgrades[i]))\n                filteredUpgrades.push(upgrades[i]);\n        }\n        return filteredUpgrades;\n    }\n}\nSocket.protocol = protocol;\n", "import { Socket } from \"./socket.js\";\nexport { Socket };\nexport const protocol = Socket.protocol;\nexport { Transport, TransportError } from \"./transport.js\";\nexport { transports } from \"./transports/index.js\";\nexport { installTimerFunctions } from \"./util.js\";\nexport { parse } from \"./contrib/parseuri.js\";\nexport { nextTick } from \"./transports/websocket-constructor.js\";\n", "import { parse } from \"engine.io-client\";\n/**\n * URL parser.\n *\n * @param uri - url\n * @param path - the request path of the connection\n * @param loc - An object meant to mimic window.location.\n *        Defaults to window.location.\n * @public\n */\nexport function url(uri, path = \"\", loc) {\n    let obj = uri;\n    // default to window.location\n    loc = loc || (typeof location !== \"undefined\" && location);\n    if (null == uri)\n        uri = loc.protocol + \"//\" + loc.host;\n    // relative path support\n    if (typeof uri === \"string\") {\n        if (\"/\" === uri.charAt(0)) {\n            if (\"/\" === uri.charAt(1)) {\n                uri = loc.protocol + uri;\n            }\n            else {\n                uri = loc.host + uri;\n            }\n        }\n        if (!/^(https?|wss?):\\/\\//.test(uri)) {\n            if (\"undefined\" !== typeof loc) {\n                uri = loc.protocol + \"//\" + uri;\n            }\n            else {\n                uri = \"https://\" + uri;\n            }\n        }\n        // parse\n        obj = parse(uri);\n    }\n    // make sure we treat `localhost:80` and `localhost` equally\n    if (!obj.port) {\n        if (/^(http|ws)$/.test(obj.protocol)) {\n            obj.port = \"80\";\n        }\n        else if (/^(http|ws)s$/.test(obj.protocol)) {\n            obj.port = \"443\";\n        }\n    }\n    obj.path = obj.path || \"/\";\n    const ipv6 = obj.host.indexOf(\":\") !== -1;\n    const host = ipv6 ? \"[\" + obj.host + \"]\" : obj.host;\n    // define unique id\n    obj.id = obj.protocol + \"://\" + host + \":\" + obj.port + path;\n    // define href\n    obj.href =\n        obj.protocol +\n            \"://\" +\n            host +\n            (loc && loc.port === obj.port ? \"\" : \":\" + obj.port);\n    return obj;\n}\n", "import { Emitter } from \"@socket.io/component-emitter\";\nimport { deconstructPacket, reconstructPacket } from \"./binary.js\";\nimport { isBinary, hasBinary } from \"./is-binary.js\";\n/**\n * These strings must not be used as event names, as they have a special meaning.\n */\nconst RESERVED_EVENTS = [\n    \"connect\",\n    \"connect_error\",\n    \"disconnect\",\n    \"disconnecting\",\n    \"newListener\",\n    \"removeListener\", // used by the Node.js EventEmitter\n];\n/**\n * Protocol version.\n *\n * @public\n */\nexport const protocol = 5;\nexport var PacketType;\n(function (PacketType) {\n    PacketType[PacketType[\"CONNECT\"] = 0] = \"CONNECT\";\n    PacketType[PacketType[\"DISCONNECT\"] = 1] = \"DISCONNECT\";\n    PacketType[PacketType[\"EVENT\"] = 2] = \"EVENT\";\n    PacketType[PacketType[\"ACK\"] = 3] = \"ACK\";\n    PacketType[PacketType[\"CONNECT_ERROR\"] = 4] = \"CONNECT_ERROR\";\n    PacketType[PacketType[\"BINARY_EVENT\"] = 5] = \"BINARY_EVENT\";\n    PacketType[PacketType[\"BINARY_ACK\"] = 6] = \"BINARY_ACK\";\n})(PacketType || (PacketType = {}));\n/**\n * A socket.io Encoder instance\n */\nexport class Encoder {\n    /**\n     * Encoder constructor\n     *\n     * @param {function} replacer - custom replacer to pass down to JSON.parse\n     */\n    constructor(replacer) {\n        this.replacer = replacer;\n    }\n    /**\n     * Encode a packet as a single string if non-binary, or as a\n     * buffer sequence, depending on packet type.\n     *\n     * @param {Object} obj - packet object\n     */\n    encode(obj) {\n        if (obj.type === PacketType.EVENT || obj.type === PacketType.ACK) {\n            if (hasBinary(obj)) {\n                return this.encodeAsBinary({\n                    type: obj.type === PacketType.EVENT\n                        ? PacketType.BINARY_EVENT\n                        : PacketType.BINARY_ACK,\n                    nsp: obj.nsp,\n                    data: obj.data,\n                    id: obj.id,\n                });\n            }\n        }\n        return [this.encodeAsString(obj)];\n    }\n    /**\n     * Encode packet as string.\n     */\n    encodeAsString(obj) {\n        // first is type\n        let str = \"\" + obj.type;\n        // attachments if we have them\n        if (obj.type === PacketType.BINARY_EVENT ||\n            obj.type === PacketType.BINARY_ACK) {\n            str += obj.attachments + \"-\";\n        }\n        // if we have a namespace other than `/`\n        // we append it followed by a comma `,`\n        if (obj.nsp && \"/\" !== obj.nsp) {\n            str += obj.nsp + \",\";\n        }\n        // immediately followed by the id\n        if (null != obj.id) {\n            str += obj.id;\n        }\n        // json data\n        if (null != obj.data) {\n            str += JSON.stringify(obj.data, this.replacer);\n        }\n        return str;\n    }\n    /**\n     * Encode packet as 'buffer sequence' by removing blobs, and\n     * deconstructing packet into object with placeholders and\n     * a list of buffers.\n     */\n    encodeAsBinary(obj) {\n        const deconstruction = deconstructPacket(obj);\n        const pack = this.encodeAsString(deconstruction.packet);\n        const buffers = deconstruction.buffers;\n        buffers.unshift(pack); // add packet info to beginning of data list\n        return buffers; // write all the buffers\n    }\n}\n// see https://stackoverflow.com/questions/8511281/check-if-a-value-is-an-object-in-javascript\nfunction isObject(value) {\n    return Object.prototype.toString.call(value) === \"[object Object]\";\n}\n/**\n * A socket.io Decoder instance\n *\n * @return {Object} decoder\n */\nexport class Decoder extends Emitter {\n    /**\n     * Decoder constructor\n     *\n     * @param {function} reviver - custom reviver to pass down to JSON.stringify\n     */\n    constructor(reviver) {\n        super();\n        this.reviver = reviver;\n    }\n    /**\n     * Decodes an encoded packet string into packet JSON.\n     *\n     * @param {String} obj - encoded packet\n     */\n    add(obj) {\n        let packet;\n        if (typeof obj === \"string\") {\n            if (this.reconstructor) {\n                throw new Error(\"got plaintext data when reconstructing a packet\");\n            }\n            packet = this.decodeString(obj);\n            const isBinaryEvent = packet.type === PacketType.BINARY_EVENT;\n            if (isBinaryEvent || packet.type === PacketType.BINARY_ACK) {\n                packet.type = isBinaryEvent ? PacketType.EVENT : PacketType.ACK;\n                // binary packet's json\n                this.reconstructor = new BinaryReconstructor(packet);\n                // no attachments, labeled binary but no binary data to follow\n                if (packet.attachments === 0) {\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n            else {\n                // non-binary full packet\n                super.emitReserved(\"decoded\", packet);\n            }\n        }\n        else if (isBinary(obj) || obj.base64) {\n            // raw binary data\n            if (!this.reconstructor) {\n                throw new Error(\"got binary data when not reconstructing a packet\");\n            }\n            else {\n                packet = this.reconstructor.takeBinaryData(obj);\n                if (packet) {\n                    // received final buffer\n                    this.reconstructor = null;\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n        }\n        else {\n            throw new Error(\"Unknown type: \" + obj);\n        }\n    }\n    /**\n     * Decode a packet String (JSON data)\n     *\n     * @param {String} str\n     * @return {Object} packet\n     */\n    decodeString(str) {\n        let i = 0;\n        // look up type\n        const p = {\n            type: Number(str.charAt(0)),\n        };\n        if (PacketType[p.type] === undefined) {\n            throw new Error(\"unknown packet type \" + p.type);\n        }\n        // look up attachments if type binary\n        if (p.type === PacketType.BINARY_EVENT ||\n            p.type === PacketType.BINARY_ACK) {\n            const start = i + 1;\n            while (str.charAt(++i) !== \"-\" && i != str.length) { }\n            const buf = str.substring(start, i);\n            if (buf != Number(buf) || str.charAt(i) !== \"-\") {\n                throw new Error(\"Illegal attachments\");\n            }\n            p.attachments = Number(buf);\n        }\n        // look up namespace (if any)\n        if (\"/\" === str.charAt(i + 1)) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (\",\" === c)\n                    break;\n                if (i === str.length)\n                    break;\n            }\n            p.nsp = str.substring(start, i);\n        }\n        else {\n            p.nsp = \"/\";\n        }\n        // look up id\n        const next = str.charAt(i + 1);\n        if (\"\" !== next && Number(next) == next) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (null == c || Number(c) != c) {\n                    --i;\n                    break;\n                }\n                if (i === str.length)\n                    break;\n            }\n            p.id = Number(str.substring(start, i + 1));\n        }\n        // look up json data\n        if (str.charAt(++i)) {\n            const payload = this.tryParse(str.substr(i));\n            if (Decoder.isPayloadValid(p.type, payload)) {\n                p.data = payload;\n            }\n            else {\n                throw new Error(\"invalid payload\");\n            }\n        }\n        return p;\n    }\n    tryParse(str) {\n        try {\n            return JSON.parse(str, this.reviver);\n        }\n        catch (e) {\n            return false;\n        }\n    }\n    static isPayloadValid(type, payload) {\n        switch (type) {\n            case PacketType.CONNECT:\n                return isObject(payload);\n            case PacketType.DISCONNECT:\n                return payload === undefined;\n            case PacketType.CONNECT_ERROR:\n                return typeof payload === \"string\" || isObject(payload);\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                return (Array.isArray(payload) &&\n                    (typeof payload[0] === \"number\" ||\n                        (typeof payload[0] === \"string\" &&\n                            RESERVED_EVENTS.indexOf(payload[0]) === -1)));\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                return Array.isArray(payload);\n        }\n    }\n    /**\n     * Deallocates a parser's resources\n     */\n    destroy() {\n        if (this.reconstructor) {\n            this.reconstructor.finishedReconstruction();\n            this.reconstructor = null;\n        }\n    }\n}\n/**\n * A manager of a binary event's 'buffer sequence'. Should\n * be constructed whenever a packet of type BINARY_EVENT is\n * decoded.\n *\n * @param {Object} packet\n * @return {BinaryReconstructor} initialized reconstructor\n */\nclass BinaryReconstructor {\n    constructor(packet) {\n        this.packet = packet;\n        this.buffers = [];\n        this.reconPack = packet;\n    }\n    /**\n     * Method to be called when binary data received from connection\n     * after a BINARY_EVENT packet.\n     *\n     * @param {Buffer | ArrayBuffer} binData - the raw binary data received\n     * @return {null | Object} returns null if more binary data is expected or\n     *   a reconstructed packet object if all buffers have been received.\n     */\n    takeBinaryData(binData) {\n        this.buffers.push(binData);\n        if (this.buffers.length === this.reconPack.attachments) {\n            // done with buffer list\n            const packet = reconstructPacket(this.reconPack, this.buffers);\n            this.finishedReconstruction();\n            return packet;\n        }\n        return null;\n    }\n    /**\n     * Cleans up binary packet reconstruction variables.\n     */\n    finishedReconstruction() {\n        this.reconPack = null;\n        this.buffers = [];\n    }\n}\n", "const withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nconst isView = (obj) => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj.buffer instanceof ArrayBuffer;\n};\nconst toString = Object.prototype.toString;\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeFile = typeof File === \"function\" ||\n    (typeof File !== \"undefined\" &&\n        toString.call(File) === \"[object FileConstructor]\");\n/**\n * Returns true if obj is a Buffer, an ArrayBuffer, a Blob or a File.\n *\n * @private\n */\nexport function isBinary(obj) {\n    return ((withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj))) ||\n        (withNativeBlob && obj instanceof Blob) ||\n        (withNativeFile && obj instanceof File));\n}\nexport function hasBinary(obj, toJSON) {\n    if (!obj || typeof obj !== \"object\") {\n        return false;\n    }\n    if (Array.isArray(obj)) {\n        for (let i = 0, l = obj.length; i < l; i++) {\n            if (hasBinary(obj[i])) {\n                return true;\n            }\n        }\n        return false;\n    }\n    if (isBinary(obj)) {\n        return true;\n    }\n    if (obj.toJSON &&\n        typeof obj.toJSON === \"function\" &&\n        arguments.length === 1) {\n        return hasBinary(obj.toJSON(), true);\n    }\n    for (const key in obj) {\n        if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {\n            return true;\n        }\n    }\n    return false;\n}\n", "import { isBinary } from \"./is-binary.js\";\n/**\n * Replaces every Buffer | ArrayBuffer | Blob | File in packet with a numbered placeholder.\n *\n * @param {Object} packet - socket.io event packet\n * @return {Object} with deconstructed packet and list of buffers\n * @public\n */\nexport function deconstructPacket(packet) {\n    const buffers = [];\n    const packetData = packet.data;\n    const pack = packet;\n    pack.data = _deconstructPacket(packetData, buffers);\n    pack.attachments = buffers.length; // number of binary 'attachments'\n    return { packet: pack, buffers: buffers };\n}\nfunction _deconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (isBinary(data)) {\n        const placeholder = { _placeholder: true, num: buffers.length };\n        buffers.push(data);\n        return placeholder;\n    }\n    else if (Array.isArray(data)) {\n        const newData = new Array(data.length);\n        for (let i = 0; i < data.length; i++) {\n            newData[i] = _deconstructPacket(data[i], buffers);\n        }\n        return newData;\n    }\n    else if (typeof data === \"object\" && !(data instanceof Date)) {\n        const newData = {};\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                newData[key] = _deconstructPacket(data[key], buffers);\n            }\n        }\n        return newData;\n    }\n    return data;\n}\n/**\n * Reconstructs a binary packet from its placeholder packet and buffers\n *\n * @param {Object} packet - event packet with placeholders\n * @param {Array} buffers - binary buffers to put in placeholder positions\n * @return {Object} reconstructed packet\n * @public\n */\nexport function reconstructPacket(packet, buffers) {\n    packet.data = _reconstructPacket(packet.data, buffers);\n    delete packet.attachments; // no longer useful\n    return packet;\n}\nfunction _reconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (data && data._placeholder === true) {\n        const isIndexValid = typeof data.num === \"number\" &&\n            data.num >= 0 &&\n            data.num < buffers.length;\n        if (isIndexValid) {\n            return buffers[data.num]; // appropriate buffer (should be natural order anyway)\n        }\n        else {\n            throw new Error(\"illegal attachments\");\n        }\n    }\n    else if (Array.isArray(data)) {\n        for (let i = 0; i < data.length; i++) {\n            data[i] = _reconstructPacket(data[i], buffers);\n        }\n    }\n    else if (typeof data === \"object\") {\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                data[key] = _reconstructPacket(data[key], buffers);\n            }\n        }\n    }\n    return data;\n}\n", "export function on(obj, ev, fn) {\n    obj.on(ev, fn);\n    return function subDestroy() {\n        obj.off(ev, fn);\n    };\n}\n", "import { PacketType } from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\n/**\n * Internal events.\n * These events can't be emitted by the user.\n */\nconst RESERVED_EVENTS = Object.freeze({\n    connect: 1,\n    connect_error: 1,\n    disconnect: 1,\n    disconnecting: 1,\n    // EventEmitter reserved events: https://nodejs.org/api/events.html#events_event_newlistener\n    newListener: 1,\n    removeListener: 1,\n});\n/**\n * A Socket is the fundamental class for interacting with the server.\n *\n * A Socket belongs to a certain Namespace (by default /) and uses an underlying {@link Manager} to communicate.\n *\n * @example\n * const socket = io();\n *\n * socket.on(\"connect\", () => {\n *   console.log(\"connected\");\n * });\n *\n * // send an event to the server\n * socket.emit(\"foo\", \"bar\");\n *\n * socket.on(\"foobar\", () => {\n *   // an event was received from the server\n * });\n *\n * // upon disconnection\n * socket.on(\"disconnect\", (reason) => {\n *   console.log(`disconnected due to ${reason}`);\n * });\n */\nexport class Socket extends Emitter {\n    /**\n     * `Socket` constructor.\n     */\n    constructor(io, nsp, opts) {\n        super();\n        /**\n         * Whether the socket is currently connected to the server.\n         *\n         * @example\n         * const socket = io();\n         *\n         * socket.on(\"connect\", () => {\n         *   console.log(socket.connected); // true\n         * });\n         *\n         * socket.on(\"disconnect\", () => {\n         *   console.log(socket.connected); // false\n         * });\n         */\n        this.connected = false;\n        /**\n         * Whether the connection state was recovered after a temporary disconnection. In that case, any missed packets will\n         * be transmitted by the server.\n         */\n        this.recovered = false;\n        /**\n         * Buffer for packets received before the CONNECT packet\n         */\n        this.receiveBuffer = [];\n        /**\n         * Buffer for packets that will be sent once the socket is connected\n         */\n        this.sendBuffer = [];\n        /**\n         * The queue of packets to be sent with retry in case of failure.\n         *\n         * Packets are sent one by one, each waiting for the server acknowledgement, in order to guarantee the delivery order.\n         * @private\n         */\n        this._queue = [];\n        /**\n         * A sequence to generate the ID of the {@link QueuedPacket}.\n         * @private\n         */\n        this._queueSeq = 0;\n        this.ids = 0;\n        this.acks = {};\n        this.flags = {};\n        this.io = io;\n        this.nsp = nsp;\n        if (opts && opts.auth) {\n            this.auth = opts.auth;\n        }\n        this._opts = Object.assign({}, opts);\n        if (this.io._autoConnect)\n            this.open();\n    }\n    /**\n     * Whether the socket is currently disconnected\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"connect\", () => {\n     *   console.log(socket.disconnected); // false\n     * });\n     *\n     * socket.on(\"disconnect\", () => {\n     *   console.log(socket.disconnected); // true\n     * });\n     */\n    get disconnected() {\n        return !this.connected;\n    }\n    /**\n     * Subscribe to open, close and packet events\n     *\n     * @private\n     */\n    subEvents() {\n        if (this.subs)\n            return;\n        const io = this.io;\n        this.subs = [\n            on(io, \"open\", this.onopen.bind(this)),\n            on(io, \"packet\", this.onpacket.bind(this)),\n            on(io, \"error\", this.onerror.bind(this)),\n            on(io, \"close\", this.onclose.bind(this)),\n        ];\n    }\n    /**\n     * Whether the Socket will try to reconnect when its Manager connects or reconnects.\n     *\n     * @example\n     * const socket = io();\n     *\n     * console.log(socket.active); // true\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   if (reason === \"io server disconnect\") {\n     *     // the disconnection was initiated by the server, you need to manually reconnect\n     *     console.log(socket.active); // false\n     *   }\n     *   // else the socket will automatically try to reconnect\n     *   console.log(socket.active); // true\n     * });\n     */\n    get active() {\n        return !!this.subs;\n    }\n    /**\n     * \"Opens\" the socket.\n     *\n     * @example\n     * const socket = io({\n     *   autoConnect: false\n     * });\n     *\n     * socket.connect();\n     */\n    connect() {\n        if (this.connected)\n            return this;\n        this.subEvents();\n        if (!this.io[\"_reconnecting\"])\n            this.io.open(); // ensure open\n        if (\"open\" === this.io._readyState)\n            this.onopen();\n        return this;\n    }\n    /**\n     * Alias for {@link connect()}.\n     */\n    open() {\n        return this.connect();\n    }\n    /**\n     * Sends a `message` event.\n     *\n     * This method mimics the WebSocket.send() method.\n     *\n     * @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send\n     *\n     * @example\n     * socket.send(\"hello\");\n     *\n     * // this is equivalent to\n     * socket.emit(\"message\", \"hello\");\n     *\n     * @return self\n     */\n    send(...args) {\n        args.unshift(\"message\");\n        this.emit.apply(this, args);\n        return this;\n    }\n    /**\n     * Override `emit`.\n     * If the event is in `events`, it's emitted normally.\n     *\n     * @example\n     * socket.emit(\"hello\", \"world\");\n     *\n     * // all serializable datastructures are supported (no need to call JSON.stringify)\n     * socket.emit(\"hello\", 1, \"2\", { 3: [\"4\"], 5: Uint8Array.from([6]) });\n     *\n     * // with an acknowledgement from the server\n     * socket.emit(\"hello\", \"world\", (val) => {\n     *   // ...\n     * });\n     *\n     * @return self\n     */\n    emit(ev, ...args) {\n        if (RESERVED_EVENTS.hasOwnProperty(ev)) {\n            throw new Error('\"' + ev.toString() + '\" is a reserved event name');\n        }\n        args.unshift(ev);\n        if (this._opts.retries && !this.flags.fromQueue && !this.flags.volatile) {\n            this._addToQueue(args);\n            return this;\n        }\n        const packet = {\n            type: PacketType.EVENT,\n            data: args,\n        };\n        packet.options = {};\n        packet.options.compress = this.flags.compress !== false;\n        // event ack callback\n        if (\"function\" === typeof args[args.length - 1]) {\n            const id = this.ids++;\n            const ack = args.pop();\n            this._registerAckCallback(id, ack);\n            packet.id = id;\n        }\n        const isTransportWritable = this.io.engine &&\n            this.io.engine.transport &&\n            this.io.engine.transport.writable;\n        const discardPacket = this.flags.volatile && (!isTransportWritable || !this.connected);\n        if (discardPacket) {\n        }\n        else if (this.connected) {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        }\n        else {\n            this.sendBuffer.push(packet);\n        }\n        this.flags = {};\n        return this;\n    }\n    /**\n     * @private\n     */\n    _registerAckCallback(id, ack) {\n        var _a;\n        const timeout = (_a = this.flags.timeout) !== null && _a !== void 0 ? _a : this._opts.ackTimeout;\n        if (timeout === undefined) {\n            this.acks[id] = ack;\n            return;\n        }\n        // @ts-ignore\n        const timer = this.io.setTimeoutFn(() => {\n            delete this.acks[id];\n            for (let i = 0; i < this.sendBuffer.length; i++) {\n                if (this.sendBuffer[i].id === id) {\n                    this.sendBuffer.splice(i, 1);\n                }\n            }\n            ack.call(this, new Error(\"operation has timed out\"));\n        }, timeout);\n        this.acks[id] = (...args) => {\n            // @ts-ignore\n            this.io.clearTimeoutFn(timer);\n            ack.apply(this, [null, ...args]);\n        };\n    }\n    /**\n     * Emits an event and waits for an acknowledgement\n     *\n     * @example\n     * // without timeout\n     * const response = await socket.emitWithAck(\"hello\", \"world\");\n     *\n     * // with a specific timeout\n     * try {\n     *   const response = await socket.timeout(1000).emitWithAck(\"hello\", \"world\");\n     * } catch (err) {\n     *   // the server did not acknowledge the event in the given delay\n     * }\n     *\n     * @return a Promise that will be fulfilled when the server acknowledges the event\n     */\n    emitWithAck(ev, ...args) {\n        // the timeout flag is optional\n        const withErr = this.flags.timeout !== undefined || this._opts.ackTimeout !== undefined;\n        return new Promise((resolve, reject) => {\n            args.push((arg1, arg2) => {\n                if (withErr) {\n                    return arg1 ? reject(arg1) : resolve(arg2);\n                }\n                else {\n                    return resolve(arg1);\n                }\n            });\n            this.emit(ev, ...args);\n        });\n    }\n    /**\n     * Add the packet to the queue.\n     * @param args\n     * @private\n     */\n    _addToQueue(args) {\n        let ack;\n        if (typeof args[args.length - 1] === \"function\") {\n            ack = args.pop();\n        }\n        const packet = {\n            id: this._queueSeq++,\n            tryCount: 0,\n            pending: false,\n            args,\n            flags: Object.assign({ fromQueue: true }, this.flags),\n        };\n        args.push((err, ...responseArgs) => {\n            if (packet !== this._queue[0]) {\n                // the packet has already been acknowledged\n                return;\n            }\n            const hasError = err !== null;\n            if (hasError) {\n                if (packet.tryCount > this._opts.retries) {\n                    this._queue.shift();\n                    if (ack) {\n                        ack(err);\n                    }\n                }\n            }\n            else {\n                this._queue.shift();\n                if (ack) {\n                    ack(null, ...responseArgs);\n                }\n            }\n            packet.pending = false;\n            return this._drainQueue();\n        });\n        this._queue.push(packet);\n        this._drainQueue();\n    }\n    /**\n     * Send the first packet of the queue, and wait for an acknowledgement from the server.\n     * @param force - whether to resend a packet that has not been acknowledged yet\n     *\n     * @private\n     */\n    _drainQueue(force = false) {\n        if (!this.connected || this._queue.length === 0) {\n            return;\n        }\n        const packet = this._queue[0];\n        if (packet.pending && !force) {\n            return;\n        }\n        packet.pending = true;\n        packet.tryCount++;\n        this.flags = packet.flags;\n        this.emit.apply(this, packet.args);\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param packet\n     * @private\n     */\n    packet(packet) {\n        packet.nsp = this.nsp;\n        this.io._packet(packet);\n    }\n    /**\n     * Called upon engine `open`.\n     *\n     * @private\n     */\n    onopen() {\n        if (typeof this.auth == \"function\") {\n            this.auth((data) => {\n                this._sendConnectPacket(data);\n            });\n        }\n        else {\n            this._sendConnectPacket(this.auth);\n        }\n    }\n    /**\n     * Sends a CONNECT packet to initiate the Socket.IO session.\n     *\n     * @param data\n     * @private\n     */\n    _sendConnectPacket(data) {\n        this.packet({\n            type: PacketType.CONNECT,\n            data: this._pid\n                ? Object.assign({ pid: this._pid, offset: this._lastOffset }, data)\n                : data,\n        });\n    }\n    /**\n     * Called upon engine or manager `error`.\n     *\n     * @param err\n     * @private\n     */\n    onerror(err) {\n        if (!this.connected) {\n            this.emitReserved(\"connect_error\", err);\n        }\n    }\n    /**\n     * Called upon engine `close`.\n     *\n     * @param reason\n     * @param description\n     * @private\n     */\n    onclose(reason, description) {\n        this.connected = false;\n        delete this.id;\n        this.emitReserved(\"disconnect\", reason, description);\n    }\n    /**\n     * Called with socket packet.\n     *\n     * @param packet\n     * @private\n     */\n    onpacket(packet) {\n        const sameNamespace = packet.nsp === this.nsp;\n        if (!sameNamespace)\n            return;\n        switch (packet.type) {\n            case PacketType.CONNECT:\n                if (packet.data && packet.data.sid) {\n                    this.onconnect(packet.data.sid, packet.data.pid);\n                }\n                else {\n                    this.emitReserved(\"connect_error\", new Error(\"It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)\"));\n                }\n                break;\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                this.onevent(packet);\n                break;\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                this.onack(packet);\n                break;\n            case PacketType.DISCONNECT:\n                this.ondisconnect();\n                break;\n            case PacketType.CONNECT_ERROR:\n                this.destroy();\n                const err = new Error(packet.data.message);\n                // @ts-ignore\n                err.data = packet.data.data;\n                this.emitReserved(\"connect_error\", err);\n                break;\n        }\n    }\n    /**\n     * Called upon a server event.\n     *\n     * @param packet\n     * @private\n     */\n    onevent(packet) {\n        const args = packet.data || [];\n        if (null != packet.id) {\n            args.push(this.ack(packet.id));\n        }\n        if (this.connected) {\n            this.emitEvent(args);\n        }\n        else {\n            this.receiveBuffer.push(Object.freeze(args));\n        }\n    }\n    emitEvent(args) {\n        if (this._anyListeners && this._anyListeners.length) {\n            const listeners = this._anyListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, args);\n            }\n        }\n        super.emit.apply(this, args);\n        if (this._pid && args.length && typeof args[args.length - 1] === \"string\") {\n            this._lastOffset = args[args.length - 1];\n        }\n    }\n    /**\n     * Produces an ack callback to emit with an event.\n     *\n     * @private\n     */\n    ack(id) {\n        const self = this;\n        let sent = false;\n        return function (...args) {\n            // prevent double callbacks\n            if (sent)\n                return;\n            sent = true;\n            self.packet({\n                type: PacketType.ACK,\n                id: id,\n                data: args,\n            });\n        };\n    }\n    /**\n     * Called upon a server acknowlegement.\n     *\n     * @param packet\n     * @private\n     */\n    onack(packet) {\n        const ack = this.acks[packet.id];\n        if (\"function\" === typeof ack) {\n            ack.apply(this, packet.data);\n            delete this.acks[packet.id];\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon server connect.\n     *\n     * @private\n     */\n    onconnect(id, pid) {\n        this.id = id;\n        this.recovered = pid && this._pid === pid;\n        this._pid = pid; // defined only if connection state recovery is enabled\n        this.connected = true;\n        this.emitBuffered();\n        this.emitReserved(\"connect\");\n        this._drainQueue(true);\n    }\n    /**\n     * Emit buffered events (received and emitted).\n     *\n     * @private\n     */\n    emitBuffered() {\n        this.receiveBuffer.forEach((args) => this.emitEvent(args));\n        this.receiveBuffer = [];\n        this.sendBuffer.forEach((packet) => {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        });\n        this.sendBuffer = [];\n    }\n    /**\n     * Called upon server disconnect.\n     *\n     * @private\n     */\n    ondisconnect() {\n        this.destroy();\n        this.onclose(\"io server disconnect\");\n    }\n    /**\n     * Called upon forced client/server side disconnections,\n     * this method ensures the manager stops tracking us and\n     * that reconnections don't get triggered for this.\n     *\n     * @private\n     */\n    destroy() {\n        if (this.subs) {\n            // clean subscriptions to avoid reconnections\n            this.subs.forEach((subDestroy) => subDestroy());\n            this.subs = undefined;\n        }\n        this.io[\"_destroy\"](this);\n    }\n    /**\n     * Disconnects the socket manually. In that case, the socket will not try to reconnect.\n     *\n     * If this is the last active Socket instance of the {@link Manager}, the low-level connection will be closed.\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   // console.log(reason); prints \"io client disconnect\"\n     * });\n     *\n     * socket.disconnect();\n     *\n     * @return self\n     */\n    disconnect() {\n        if (this.connected) {\n            this.packet({ type: PacketType.DISCONNECT });\n        }\n        // remove socket from pool\n        this.destroy();\n        if (this.connected) {\n            // fire events\n            this.onclose(\"io client disconnect\");\n        }\n        return this;\n    }\n    /**\n     * Alias for {@link disconnect()}.\n     *\n     * @return self\n     */\n    close() {\n        return this.disconnect();\n    }\n    /**\n     * Sets the compress flag.\n     *\n     * @example\n     * socket.compress(false).emit(\"hello\");\n     *\n     * @param compress - if `true`, compresses the sending data\n     * @return self\n     */\n    compress(compress) {\n        this.flags.compress = compress;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the event message will be dropped when this socket is not\n     * ready to send messages.\n     *\n     * @example\n     * socket.volatile.emit(\"hello\"); // the server may or may not receive it\n     *\n     * @returns self\n     */\n    get volatile() {\n        this.flags.volatile = true;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the callback will be called with an error when the\n     * given number of milliseconds have elapsed without an acknowledgement from the server:\n     *\n     * @example\n     * socket.timeout(5000).emit(\"my-event\", (err) => {\n     *   if (err) {\n     *     // the server did not acknowledge the event in the given delay\n     *   }\n     * });\n     *\n     * @returns self\n     */\n    timeout(timeout) {\n        this.flags.timeout = timeout;\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * @example\n     * socket.onAny((event, ...args) => {\n     *   console.log(`got ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * @example\n     * socket.prependAny((event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * }\n     *\n     * socket.onAny(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAny(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAny();\n     *\n     * @param listener\n     */\n    offAny(listener) {\n        if (!this._anyListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAny() {\n        return this._anyListeners || [];\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.onAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.prependAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * }\n     *\n     * socket.onAnyOutgoing(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAnyOutgoing(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAnyOutgoing();\n     *\n     * @param [listener] - the catch-all listener (optional)\n     */\n    offAnyOutgoing(listener) {\n        if (!this._anyOutgoingListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyOutgoingListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyOutgoingListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAnyOutgoing() {\n        return this._anyOutgoingListeners || [];\n    }\n    /**\n     * Notify the listeners for each packet sent\n     *\n     * @param packet\n     *\n     * @private\n     */\n    notifyOutgoingListeners(packet) {\n        if (this._anyOutgoingListeners && this._anyOutgoingListeners.length) {\n            const listeners = this._anyOutgoingListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, packet.data);\n            }\n        }\n    }\n}\n", "/**\n * Initialize backoff timer with `opts`.\n *\n * - `min` initial timeout in milliseconds [100]\n * - `max` max timeout [10000]\n * - `jitter` [0]\n * - `factor` [2]\n *\n * @param {Object} opts\n * @api public\n */\nexport function Backoff(opts) {\n    opts = opts || {};\n    this.ms = opts.min || 100;\n    this.max = opts.max || 10000;\n    this.factor = opts.factor || 2;\n    this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;\n    this.attempts = 0;\n}\n/**\n * Return the backoff duration.\n *\n * @return {Number}\n * @api public\n */\nBackoff.prototype.duration = function () {\n    var ms = this.ms * Math.pow(this.factor, this.attempts++);\n    if (this.jitter) {\n        var rand = Math.random();\n        var deviation = Math.floor(rand * this.jitter * ms);\n        ms = (Math.floor(rand * 10) & 1) == 0 ? ms - deviation : ms + deviation;\n    }\n    return Math.min(ms, this.max) | 0;\n};\n/**\n * Reset the number of attempts.\n *\n * @api public\n */\nBackoff.prototype.reset = function () {\n    this.attempts = 0;\n};\n/**\n * Set the minimum duration\n *\n * @api public\n */\nBackoff.prototype.setMin = function (min) {\n    this.ms = min;\n};\n/**\n * Set the maximum duration\n *\n * @api public\n */\nBackoff.prototype.setMax = function (max) {\n    this.max = max;\n};\n/**\n * Set the jitter\n *\n * @api public\n */\nBackoff.prototype.setJitter = function (jitter) {\n    this.jitter = jitter;\n};\n", "import { Socket as Engine, installTimerFunctions, nextTick, } from \"engine.io-client\";\nimport { Socket } from \"./socket.js\";\nimport * as parser from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Backoff } from \"./contrib/backo2.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\nexport class Manager extends Emitter {\n    constructor(uri, opts) {\n        var _a;\n        super();\n        this.nsps = {};\n        this.subs = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = undefined;\n        }\n        opts = opts || {};\n        opts.path = opts.path || \"/socket.io\";\n        this.opts = opts;\n        installTimerFunctions(this, opts);\n        this.reconnection(opts.reconnection !== false);\n        this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);\n        this.reconnectionDelay(opts.reconnectionDelay || 1000);\n        this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);\n        this.randomizationFactor((_a = opts.randomizationFactor) !== null && _a !== void 0 ? _a : 0.5);\n        this.backoff = new Backoff({\n            min: this.reconnectionDelay(),\n            max: this.reconnectionDelayMax(),\n            jitter: this.randomizationFactor(),\n        });\n        this.timeout(null == opts.timeout ? 20000 : opts.timeout);\n        this._readyState = \"closed\";\n        this.uri = uri;\n        const _parser = opts.parser || parser;\n        this.encoder = new _parser.Encoder();\n        this.decoder = new _parser.Decoder();\n        this._autoConnect = opts.autoConnect !== false;\n        if (this._autoConnect)\n            this.open();\n    }\n    reconnection(v) {\n        if (!arguments.length)\n            return this._reconnection;\n        this._reconnection = !!v;\n        return this;\n    }\n    reconnectionAttempts(v) {\n        if (v === undefined)\n            return this._reconnectionAttempts;\n        this._reconnectionAttempts = v;\n        return this;\n    }\n    reconnectionDelay(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelay;\n        this._reconnectionDelay = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMin(v);\n        return this;\n    }\n    randomizationFactor(v) {\n        var _a;\n        if (v === undefined)\n            return this._randomizationFactor;\n        this._randomizationFactor = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setJitter(v);\n        return this;\n    }\n    reconnectionDelayMax(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelayMax;\n        this._reconnectionDelayMax = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMax(v);\n        return this;\n    }\n    timeout(v) {\n        if (!arguments.length)\n            return this._timeout;\n        this._timeout = v;\n        return this;\n    }\n    /**\n     * Starts trying to reconnect if reconnection is enabled and we have not\n     * started reconnecting yet\n     *\n     * @private\n     */\n    maybeReconnectOnOpen() {\n        // Only try to reconnect if it's the first time we're connecting\n        if (!this._reconnecting &&\n            this._reconnection &&\n            this.backoff.attempts === 0) {\n            // keeps reconnection from firing twice for the same reconnection loop\n            this.reconnect();\n        }\n    }\n    /**\n     * Sets the current transport `socket`.\n     *\n     * @param {Function} fn - optional, callback\n     * @return self\n     * @public\n     */\n    open(fn) {\n        if (~this._readyState.indexOf(\"open\"))\n            return this;\n        this.engine = new Engine(this.uri, this.opts);\n        const socket = this.engine;\n        const self = this;\n        this._readyState = \"opening\";\n        this.skipReconnect = false;\n        // emit `open`\n        const openSubDestroy = on(socket, \"open\", function () {\n            self.onopen();\n            fn && fn();\n        });\n        const onError = (err) => {\n            this.cleanup();\n            this._readyState = \"closed\";\n            this.emitReserved(\"error\", err);\n            if (fn) {\n                fn(err);\n            }\n            else {\n                // Only do this if there is no fn to handle the error\n                this.maybeReconnectOnOpen();\n            }\n        };\n        // emit `error`\n        const errorSub = on(socket, \"error\", onError);\n        if (false !== this._timeout) {\n            const timeout = this._timeout;\n            // set timer\n            const timer = this.setTimeoutFn(() => {\n                openSubDestroy();\n                onError(new Error(\"timeout\"));\n                socket.close();\n   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on(this.decoder, \"decoded\", this.ondecoded.bind(this)));\n    }\n    /**\n     * Called upon a ping.\n     *\n     * @private\n     */\n    onping() {\n        this.emitReserved(\"ping\");\n    }\n    /**\n     * Called with data.\n     *\n     * @private\n     */\n    ondata(data) {\n        try {\n            this.decoder.add(data);\n        }\n        catch (e) {\n            this.onclose(\"parse error\", e);\n        }\n    }\n    /**\n     * Called when parser fully decodes a packet.\n     *\n     * @private\n     */\n    ondecoded(packet) {\n        // the nextTick call prevents an exception in a user-provided event listener from triggering a disconnection due to a \"parse error\"\n        nextTick(() => {\n            this.emitReserved(\"packet\", packet);\n        }, this.setTimeoutFn);\n    }\n    /**\n     * Called upon socket error.\n     *\n     * @private\n     */\n    onerror(err) {\n        this.emitReserved(\"error\", err);\n    }\n    /**\n     * Creates a new socket for the given `nsp`.\n     *\n     * @return {Socket}\n     * @public\n     */\n    socket(nsp, opts) {\n        let socket = this.nsps[nsp];\n        if (!socket) {\n            socket = new Socket(this, nsp, opts);\n            this.nsps[nsp] = socket;\n        }\n        else if (this._autoConnect && !socket.active) {\n            socket.connect();\n        }\n        return socket;\n    }\n    /**\n     * Called upon a socket close.\n     *\n     * @param socket\n     * @private\n     */\n    _destroy(socket) {\n        const nsps = Object.keys(this.nsps);\n        for (const nsp of nsps) {\n            const socket = this.nsps[nsp];\n            if (socket.active) {\n                return;\n            }\n        }\n        this._close();\n    }\n    /**\n     * Writes a packet.\n     *\n     * @param packet\n     * @private\n     */\n    _packet(packet) {\n        const encodedPackets = this.encoder.encode(packet);\n        for (let i = 0; i < encodedPackets.length; i++) {\n            this.engine.write(encodedPackets[i], packet.options);\n        }\n    }\n    /**\n     * Clean up transport subscriptions and packet buffer.\n     *\n     * @private\n     */\n    cleanup() {\n        this.subs.forEach((subDestroy) => subDestroy());\n        this.subs.length = 0;\n        this.decoder.destroy();\n    }\n    /**\n     * Close the current socket.\n     *\n     * @private\n     */\n    _close() {\n        this.skipReconnect = true;\n        this._reconnecting = false;\n        this.onclose(\"forced close\");\n        if (this.engine)\n            this.engine.close();\n    }\n    /**\n     * Alias for close()\n     *\n     * @private\n     */\n    disconnect() {\n        return this._close();\n    }\n    /**\n     * Called upon engine close.\n     *\n     * @private\n     */\n    onclose(reason, description) {\n        this.cleanup();\n        this.backoff.reset();\n        this._readyState = \"closed\";\n        this.emitReserved(\"close\", reason, description);\n        if (this._reconnection && !this.skipReconnect) {\n            this.reconnect();\n        }\n    }\n    /**\n     * Attempt a reconnection.\n     *\n     * @private\n     */\n    reconnect() {\n        if (this._reconnecting || this.skipReconnect)\n            return this;\n        const self = this;\n        if (this.backoff.attempts >= this._reconnectionAttempts) {\n            this.backoff.reset();\n            this.emitReserved(\"reconnect_failed\");\n            this._reconnecting = false;\n        }\n        else {\n            const delay = this.backoff.duration();\n            this._reconnecting = true;\n            const timer = this.setTimeoutFn(() => {\n                if (self.skipReconnect)\n                    return;\n                this.emitReserved(\"reconnect_attempt\", self.backoff.attempts);\n                // check again for the case socket closed in above events\n                if (self.skipReconnect)\n                    return;\n                self.open((err) => {\n                    if (err) {\n                        self._reconnecting = false;\n                        self.reconnect();\n                        this.emitReserved(\"reconnect_error\", err);\n                    }\n                    else {\n                        self.onreconnect();\n                    }\n                });\n            }, delay);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n    }\n    /**\n     * Called upon successful reconnect.\n     *\n     * @private\n     */\n    onreconnect() {\n        const attempt = this.backoff.attempts;\n        this._reconnecting = false;\n        this.backoff.reset();\n        this.emitReserved(\"reconnect\", attempt);\n    }\n}\n", "import { url } from \"./url.js\";\nimport { Manager } from \"./manager.js\";\nimport { Socket } from \"./socket.js\";\n/**\n * Managers cache.\n */\nconst cache = {};\nfunction lookup(uri, opts) {\n    if (typeof uri === \"object\") {\n        opts = uri;\n        uri = undefined;\n    }\n    opts = opts || {};\n    const parsed = url(uri, opts.path || \"/socket.io\");\n    const source = parsed.source;\n    const id = parsed.id;\n    const path = parsed.path;\n    const sameNamespace = cache[id] && path in cache[id][\"nsps\"];\n    const newConnection = opts.forceNew ||\n        opts[\"force new connection\"] ||\n        false === opts.multiplex ||\n        sameNamespace;\n    let io;\n    if (newConnection) {\n        io = new Manager(source, opts);\n    }\n    else {\n        if (!cache[id]) {\n            cache[id] = new Manager(source, opts);\n        }\n        io = cache[id];\n    }\n    if (parsed.query && !opts.query) {\n        opts.query = parsed.queryKey;\n    }\n    return io.socket(parsed.path, opts);\n}\n// so that \"lookup\" can be used both as a function (e.g. `io(...)`) and as a\n// namespace (e.g. `io.connect(...)`), for backward compatibility\nObject.assign(lookup, {\n    Manager,\n    Socket,\n    io: lookup,\n    connect: lookup,\n});\n/**\n * Protocol version.\n *\n * @public\n */\nexport { protocol } from \"socket.io-parser\";\n/**\n * Expose constructors for standalone build.\n *\n * @public\n */\nexport { Manager, Socket, lookup as io, lookup as connect, lookup as default, };\n"],
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+  "names": ["require_ui", "__commonJSMin", "exports", "module", "_a", "Ui", "win", "extLog", "jsonHighlight", "__publicField", "json", "msg", "el", "component", "mdText", "opts", "str", "lang", "md", "html", "url", "newScript", "newStyle", "textFn", "type", "ui", "content", "toaster", "toast", "evt", "config", "notify", "resolve", "reject", "ev", "permit", "response", "contentType", "data", "err", "comp", "attrib", "prop", "parentEl", "components", "ns", "compToAdd", "i", "newEl", "isRecurse", "elParent", "all", "compToRemove", "els", "compToReplace", "elToReplace", "compToUpd", "elToUpd", "__toESM", "__require", "script", "sheet", "node", "cssSelector", "thisOut", "listEntries", "bodyEntries", "headEntries", "cols", "v", "propName", "selection", "out", "p", "key", "uiOptions", "error", "slot", "txtReturn", "import_ui", "_UibVar", "__publicField", "attrib", "oldVal", "newVal", "val", "t", "UibVar", "PACKET_TYPES", "PACKET_TYPES_REVERSE", "key", "ERROR_PACKET", "withNativeBlob", "withNativeArrayBuffer", "isView", "obj", "encodePacket", "type", "data", "supportsBinary", "callback", "encodeBlobAsBase64", "PACKET_TYPES", "fileReader", "content", "toArray", "TEXT_ENCODER", "encodePacketToBinary", "packet", "encoded", "chars", "lookup", "i", "decode", "base64", "bufferLength", "len", "p", "encoded1", "encoded2", "encoded3", "encoded4", "arraybuffer", "bytes", "lookup", "withNativeArrayBuffer", "decodePacket", "encodedPacket", "binaryType", "mapBinary", "type", "decodeBase64Packet", "PACKET_TYPES_REVERSE", "ERROR_PACKET", "data", "decoded", "decode", "SEPARATOR", "encodePayload", "packets", "callback", "length", "encodedPackets", "count", "packet", "i", "encodePacket", "encodedPacket", "decodePayload", "encodedPayload", "binaryType", "decodedPacket", "decodePacket", "createPacketEncoderStream", "controller", "encodePacketToBinary", "payloadLength", "header", "view", "TEXT_DECODER", "totalLength", "chunks", "acc", "chunk", "concatChunks", "size", "buffer", "j", "createPacketDecoderStream", "maxPayload", "state", "expectedLength", "isBinary", "headerArray", "n", "ERROR_PACKET", "data", "protocol", "Emitter", "obj", "mixin", "key", "event", "fn", "on", "callbacks", "cb", "i", "args", "len", "globalThisShim", "pick", "obj", "attr", "acc", "k", "NATIVE_SET_TIMEOUT", "globalThisShim", "NATIVE_CLEAR_TIMEOUT", "installTimerFunctions", "opts", "BASE64_OVERHEAD", "byteLength", "utf8Length", "str", "c", "length", "l", "encode", "obj", "str", "i", "decode", "qs", "qry", "pairs", "l", "pair", "TransportError", "reason", "description", "context", "Transport", "Emitter", "opts", "installTimerFunctions", "packets", "data", "packet", "decodePacket", "details", "onPause", "schema", "query", "hostname", "encodedQuery", "encode", "alphabet", "length", "map", "seed", "i", "prev", "encode", "num", "encoded", "yeast", "now", "encode", "prev", "seed", "i", "length", "map", "alphabet", "value", "hasCORS", "XHR", "opts", "xdomain", "hasCORS", "globalThisShim", "empty", "hasXHR2", "XHR", "Polling", "Transport", "opts", "isSSL", "port", "forceBase64", "onPause", "pause", "total", "data", "callback", "packet", "decodePayload", "close", "packets", "encodePayload", "schema", "query", "yeast", "Request", "fn", "req", "xhrStatus", "context", "_Request", "Emitter", "uri", "installTimerFunctions", "_a", "pick", "xhr", "i", "e", "err", "fromError", "unloadHandler", "terminationEvent", "globalThisShim", "nextTick", "cb", "setTimeoutFn", "WebSocket", "globalThisShim", "usingBrowserWebSocket", "defaultBinaryType", "isReactNative", "WS", "Transport", "opts", "uri", "protocols", "pick", "usingBrowserWebSocket", "WebSocket", "err", "closeEvent", "ev", "packets", "i", "packet", "lastPacket", "encodePacket", "data", "nextTick", "schema", "query", "yeast", "WT", "Transport", "err", "stream", "decoderStream", "createPacketDecoderStream", "reader", "encoderStream", "createPacketEncoderStream", "read", "done", "value", "packet", "packets", "i", "lastPacket", "nextTick", "_a", "transports", "WS", "WT", "Polling", "re", "parts", "parse", "str", "src", "b", "e", "m", "uri", "i", "pathNames", "queryKey", "obj", "path", "regx", "names", "query", "data", "$0", "$1", "$2", "Socket", "_Socket", "Emitter", "uri", "opts", "defaultBinaryType", "parse", "installTimerFunctions", "decode", "name", "query", "protocol", "transports", "transport", "reason", "failed", "onTransportOpen", "msg", "cleanup", "err", "freezeTransport", "onerror", "error", "onTransportClose", "onclose", "onupgrade", "to", "i", "l", "packet", "data", "packets", "payloadSize", "byteLength", "options", "fn", "type", "close", "cleanupAndClose", "waitForUpgrade", "description", "upgrades", "filteredUpgrades", "j", "protocol", "Socket", "url", "uri", "path", "loc", "obj", "parse", "host", "esm_exports", "__export", "Decoder", "Encoder", "PacketType", "protocol", "withNativeArrayBuffer", "isView", "obj", "toString", "withNativeBlob", "withNativeFile", "isBinary", "hasBinary", "toJSON", "i", "l", "key", "deconstructPacket", "packet", "buffers", "packetData", "pack", "_deconstructPacket", "data", "isBinary", "placeholder", "newData", "key", "reconstructPacket", "_reconstructPacket", "i", "RESERVED_EVENTS", "protocol", "PacketType", "Encoder", "replacer", "obj", "hasBinary", "str", "deconstruction", "deconstructPacket", "pack", "buffers", "isObject", "value", "Decoder", "_Decoder", "Emitter", "reviver", "packet", "isBinaryEvent", "BinaryReconstructor", "isBinary", "i", "p", "start", "buf", "next", "c", "payload", "type", "binData", "reconstructPacket", "on", "obj", "ev", "fn", "RESERVED_EVENTS", "Socket", "Emitter", "io", "nsp", "opts", "on", "args", "ev", "packet", "PacketType", "id", "ack", "isTransportWritable", "_a", "timeout", "timer", "i", "withErr", "resolve", "reject", "arg1", "arg2", "err", "responseArgs", "force", "data", "reason", "description", "listeners", "listener", "self", "sent", "pid", "subDestroy", "compress", "Backoff", "opts", "ms", "rand", "deviation", "min", "max", "jitter", "Manager", "Emitter", "uri", "opts", "_a", "installTimerFunctions", "Backoff", "_parser", "esm_exports", "v", "fn", "Socket", "socket", "self", "openSubDestroy", "on", "onError", "err", "errorSub", "timeout", "timer", "data", "e", "packet", "nextTick", "nsp", "nsps", "encodedPackets", "subDestroy", "reason", "description", "delay", "attempt", "cache", "lookup", "uri", "opts", "parsed", "url", "source", "id", "path", "sameNamespace", "newConnection", "io", "Manager", "Socket", "version", "isMinified", "param", "logLevel", "LOG_STYLES", "log", "args", "level", "strLevel", "head", "makeMeAnObject", "thing", "property", "out", "urlJoin", "e", "syntaxHighlight", "json", "match", "cls", "_ui", "Ui", "_a", "_pingInterval", "_propChangeCallbacks", "_msgRecvdByTopicCallbacks", "_timerid", "_MsgHandler", "_isShowMsg", "_isShowStatus", "_sendUrlHash", "_extCommands", "_managedVars", "_showStatus", "_uiObservers", "Uib", "__publicField", "__privateAdd", "cb", "c", "splitC", "event", "__privateGet", "fullPath", "autoloadVars", "id", "prop", "val", "store", "autoload", "value", "autoVars", "title", "details", "callback", "nextCbRef", "propChangeCallback", "cbRef", "topic", "msgRecvdEvtCallback", "msg", "receivedMsg", "serverTimestamp", "offset", "cssSelector", "el", "originator", "ms", "oReq", "headers", "elapsedTime", "__privateSet", "varToCopy", "data", "exists", "url", "deflt", "ret", "toggle", "component", "mdText", "html", "textFn", "type", "ui", "propName", "uiOptions", "showHide", "parent", "slot", "config", "res", "err", "opts", "root", "entry", "startStop", "send", "showLog", "targetNode", "that", "mutationList", "mu", "oMu", "an", "i", "htmlCache", "msgToSend", "channel", "numMsgs", "domevent", "target", "props", "key", "ignoreAttribs", "attribs", "name", "form", "frmVals", "frmEl", "v", "classes", "payload", "nprops", "cmd", "quiet", "response", "info", "newUrl", "obj", "r", "receivedCtrlMsg", "txtToSend", "ioNamespace", "u", "t", "delay", "factor", "depth", "reason", "lookup", "options", "eMsg", "uibuilder", "uibuilder_module_default", "uibuilder", "UibVar"]
 }
diff --git a/front-end/uibuilder.iife.js b/front-end/uibuilder.iife.js
index 06405417..8b96a979 100644
--- a/front-end/uibuilder.iife.js
+++ b/front-end/uibuilder.iife.js
@@ -63,7 +63,7 @@
          * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input
          */
         constructor(win, extLog, jsonHighlight) {
-          __publicField(this, "version", "6.6.0-src");
+          __publicField(this, "version", "6.8.0-src");
           // List of tags and attributes not in sanitise defaults but allowed in uibuilder.
           __publicField(this, "sanitiseExtraTags", ["uib-var"]);
           __publicField(this, "sanitiseExtraAttribs", ["variable", "report", "undefined"]);
@@ -2361,6 +2361,9 @@
     "anchor"
   ];
   function parse(str) {
+    if (str.length > 2e3) {
+      throw "URI too long";
+    }
     const src = str, b = str.indexOf("["), e = str.indexOf("]");
     if (b != -1 && e != -1) {
       str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ";") + str.substring(e, str.length);
@@ -4473,7 +4476,7 @@
   });
 
   // src/front-end-module/uibuilder.module.js
-  var version = "6.6.0-iife";
+  var version = "6.8.0-iife";
   var isMinified = !/param/.test(function(param) {
   });
   var logLevel = isMinified ? 0 : 1;
@@ -4651,7 +4654,7 @@
     return json;
   }
   var _ui = new import_ui.default(window, log, syntaxHighlight);
-  var _a, _pingInterval, _propChangeCallbacks, _msgRecvdByTopicCallbacks, _timerid, _MsgHandler, _isShowMsg, _isShowStatus, _intersectionObserver, _sendUrlHash, _extCommands, _managedVars, _showStatus, _uiObservers;
+  var _a, _pingInterval, _propChangeCallbacks, _msgRecvdByTopicCallbacks, _timerid, _MsgHandler, _isShowMsg, _isShowStatus, _sendUrlHash, _extCommands, _managedVars, _showStatus, _uiObservers;
   var Uib = (_a = class {
     // ---- End of ioSetup ---- //
     //#endregion -------- ------------ -------- //
@@ -4689,23 +4692,24 @@
       __privateAdd(this, _isShowMsg, false);
       // Has showStatus been turned on?
       __privateAdd(this, _isShowStatus, false);
-      // Has an IntersectionObserver been created? If so, this will hold the reference to it
-      __privateAdd(this, _intersectionObserver, void 0);
       // If true, URL hash changes send msg back to node-red. Controlled by watchUrlHash()
       __privateAdd(this, _sendUrlHash, false);
       // Externally accessible command functions (NB: Case must match) - remember to update _uibCommand for new commands
       __privateAdd(this, _extCommands, [
+        "elementExists",
         "get",
-        "set",
+        "getManagedVarList",
+        "getWatchedVars",
         "htmlSend",
+        "include",
+        "navigate",
+        "scrollTo",
+        "set",
         "showMsg",
         "showStatus",
         "uiGet",
         "uiWatch",
-        "include",
-        "elementExists",
-        "getManagedVarList",
-        "getWatchedVars"
+        "watchUrlHash"
       ]);
       /** @type {{[key: string]: string}} Managed uibuilder variables */
       __privateAdd(this, _managedVars, {});
@@ -4806,17 +4810,26 @@
       __publicField(this, "storePrefix", "uib_");
       // Prefix for all uib-related localStorage
       __publicField(this, "started", false);
+      // NOTE: These can only change when a client (re)connects
       __publicField(this, "socketOptions", {
         path: this.ioPath,
         transports: ["polling", "websocket"],
-        auth: {
-          clientVersion: version,
-          clientId: this.clientId,
-          pathName: window.location.pathname,
-          urlParams: Object.fromEntries(new URLSearchParams(location.search)),
-          pageName: void 0,
-          tabId: void 0,
-          lastNavType: void 0
+        // Using callback so that they are updated automatically on (re)connect
+        // Only put things in here that will be valid for a websocket connected session
+        auth: (cb) => {
+          cb({
+            // eslint-disable-line n/no-callback-literal
+            clientVersion: version,
+            clientId: this.clientId,
+            pathName: window.location.pathname,
+            urlParams: Object.fromEntries(new URLSearchParams(location.search)),
+            pageName: this.pageName,
+            tabId: this.tabId,
+            lastNavType: this.lastNavType,
+            connectedNum: ++this.connectedNum,
+            // Used to calculate the diff between the server and client connection timestamps - reported if >1 minute
+            browserConnectTimestamp: (/* @__PURE__ */ new Date()).toISOString()
+          });
         },
         transportOptions: {
           // Can only set headers when polling
@@ -5244,45 +5257,17 @@
       navigator.clipboard.writeText(data);
     }
     // --- End of copyToClipboard --- //
-    /** Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.
+    /** DEPRECATED FOR NOW - wasn't working properly.
+     * Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.
      * Requires IntersectionObserver (available to all mainstream browsers from early 2019)
      * Automatically sends a msg back to Node-RED.
      * Requires the element to already exist.
-     * @param {string} cssSelector Required. CSS Selector to examine for visibility
-     * @param {boolean} stop Optional. Default=false. If TRUE, stop the observer for this cssSelector
-     * @param {number} threshold Optional. Default=0.1. Between 0 and 1, the % visibility before trigger
      */
-    elementIsVisible(cssSelector, stop = false, threshold = 0.1) {
-      if (!IntersectionObserver)
-        return;
-      if (!__privateGet(this, _intersectionObserver)) {
-        __privateSet(this, _intersectionObserver, new IntersectionObserver((ioEntries) => {
-          const entries = [];
-          ioEntries.forEach((entry) => {
-            entry.target.dataset.isvisible = entry.isIntersecting;
-            entries.push({
-              isIntersecting: entry.isIntersecting
-            });
-          });
-          this.send({
-            payload: entries[0].isIntersecting,
-            isVisible: entries[0].isIntersecting,
-            cssSelector,
-            entries
-          });
-          log("info", "uib:elementIsVisible", `Element "${cssSelector}" is now ${entries[0].isIntersecting ? "more than 10%" : "NOT (<10%)"} visible`)();
-        }, { threshold }));
-      }
-      const el = document.querySelector(cssSelector);
-      if (el === null) {
-        log("error", "uib:elementIsVisible", `Element "${cssSelector}" not found`)();
-        return;
-      }
-      if (stop === true) {
-        __privateGet(this, _intersectionObserver).unobserve(el);
-        return;
-      }
-      __privateGet(this, _intersectionObserver).observe(el);
+    elementIsVisible() {
+      const info = "elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex";
+      log("error", "uib:elementIsVisible", info)();
+      this.send({ payload: "elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex" });
+      return false;
     }
     // --- End of elementIsVisible --- //
     /** Does the chosen CSS Selector currently exist?
@@ -5349,6 +5334,15 @@
       __privateSet(this, _sendUrlHash, this.truthy(toggle, __privateGet(this, _sendUrlHash) !== true));
       return __privateGet(this, _sendUrlHash);
     }
+    /** Navigate to a new page or a new route (hash)
+     * @param {string} url URL to navigate to. Can be absolute or relative (to current page) or just a hash for a route change
+     * @returns {Location} The new window.location string
+     */
+    navigate(url2) {
+      if (url2)
+        window.location.href = url2;
+      return window.location;
+    }
     //#endregion -------- -------- -------- //
     //#region ------- UI handlers --------- //
     //#region -- Direct to _ui --
@@ -5559,6 +5553,28 @@
       });
       return null;
     }
+    /** Scroll the page
+     * https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollIntoView
+     * @param {string} [cssSelector] Optional. If not set, scrolls to top of page.
+     * @param {{block:(string|undefined),inline:(string|undefined),behavior:(string|undefined)}} [opts] Optional. DOM scrollIntoView options
+     * @returns {boolean} True if element was found, false otherwise
+     */
+    scrollTo(cssSelector, opts) {
+      if (!opts)
+        opts = {};
+      if (!cssSelector || cssSelector === "top" || cssSelector === "start")
+        cssSelector = "body";
+      else if (cssSelector === "bottom" || cssSelector === "end") {
+        cssSelector = "body";
+        opts.block = "end";
+      }
+      const el = this.$(cssSelector);
+      if (el) {
+        el.scrollIntoView(opts);
+        return true;
+      }
+      return false;
+    }
     /** Show/hide a display card on the end of the visible HTML that will dynamically display the current status of the uibuilder client
      * The card has the id `uib_status`.
      * The display is updated by an event listener created in the class constructor.
@@ -5770,9 +5786,6 @@
         msgToSend.from = "client";
       }
       msgToSend._socketId = this._socket.id;
-      this.socketOptions.auth.tabId = this.tabId;
-      this.socketOptions.auth.lastNavType = this.lastNavType;
-      this.socketOptions.auth.connectedNum = this.connectedNum;
       if (originator === "" && this.originator !== "")
         originator = this.originator;
       if (originator !== "")
@@ -5997,6 +6010,12 @@ ${document.documentElement.outerHTML}`;
      * @param {object} msg Msg from Node-RED containing a msg._uib object
      */
     _uibCommand(msg) {
+      if (!msg._uib || !msg._uib.command) {
+        log("error", "uibuilder:_uibCommand", "Invalid command message received", { msg })();
+        msg.payload = msg.error = "Invalid command message received";
+        this.send(msg);
+        return;
+      }
       const cmd = msg._uib.command;
       if (!__privateGet(this, _extCommands).includes(cmd.trim())) {
         log("error", "Uib:_uibCommand", `Command '${cmd} is not allowed to be called externally`)();
@@ -6004,8 +6023,13 @@ ${document.documentElement.outerHTML}`;
       }
       const prop = msg._uib.prop;
       const value2 = msg._uib.value;
+      const quiet = msg._uib.quiet ?? false;
       let response, info;
       switch (cmd) {
+        case "elementIsVisible": {
+          response = this.elementIsVisible(prop);
+          break;
+        }
         case "elementExists": {
           response = this.elementExists(prop, false);
           info = `Element "${prop}" ${response ? "exists" : "does not exist"}`;
@@ -6037,6 +6061,19 @@ ${document.documentElement.outerHTML}`;
           response = _ui.include(prop, value2);
           break;
         }
+        case "navigate": {
+          let newUrl;
+          if (prop)
+            newUrl = prop;
+          else if (value2)
+            newUrl = value2;
+          response = this.navigate(newUrl);
+          break;
+        }
+        case "scrollTo": {
+          response = this.scrollTo(prop, value2);
+          break;
+        }
         case "set": {
           let store = false;
           let autoload = false;
@@ -6074,26 +6111,28 @@ ${document.documentElement.outerHTML}`;
           break;
         }
       }
-      if (response === void 0) {
-        response = `'${prop}' is undefined`;
-      }
-      if (Object(response).constructor === Promise) {
-        response.then((data) => {
-          msg.payload = msg._uib.response = data;
+      if (quiet !== true) {
+        if (response === void 0) {
+          response = `'${prop}' is undefined`;
+        }
+        if (Object(response).constructor === Promise) {
+          response.then((data) => {
+            msg.payload = msg._uib.response = data;
+            msg.info = msg._uib.info = info;
+            if (!msg.topic)
+              msg.topic = this.topic || `uib ${cmd} for '${prop}'`;
+            this.send(msg);
+            return true;
+          }).catch((err) => {
+            log(0, "Uib:_uibCommand", "Error: ", err)();
+          });
+        } else {
+          msg.payload = msg._uib.response = response;
           msg.info = msg._uib.info = info;
           if (!msg.topic)
             msg.topic = this.topic || `uib ${cmd} for '${prop}'`;
           this.send(msg);
-          return true;
-        }).catch((err) => {
-          log(0, "Uib:_uibCommand", "Error: ", err)();
-        });
-      } else {
-        msg.payload = msg._uib.response = response;
-        msg.info = msg._uib.info = info;
-        if (!msg.topic)
-          msg.topic = this.topic || `uib ${cmd} for '${prop}'`;
-        this.send(msg);
+        }
       }
     }
     // --- end of _uibCommand ---
@@ -6221,7 +6260,7 @@ Server time: ${receivedCtrlMsg.serverTimestamp}, Sever time offset: ${this.serve
       navigator.sendBeacon("./_clientLog", `${logLevel2}::${txtToSend}`);
     }
     /** Send log info back to Node-RED over uibuilder's websocket control output (Port #2)
-     * -@param {...*} arguments All arguments passed to the function are added to the msg.payload
+     * @param {...*} arguments All arguments passed to the function are added to the msg.payload
      */
     logToServer() {
       this.sendCtrl({
@@ -6307,11 +6346,6 @@ Server time: ${receivedCtrlMsg.serverTimestamp}, Sever time offset: ${this.serve
     // See message handling section for msg receipt handlers
     /** Called by _ioSetup when Socket.IO connects to Node-RED */
     _onConnect() {
-      this.set("connectedNum", this.connectedNum++);
-      this.socketOptions.auth.connectedNum = this.connectedNum;
-      this.socketOptions.auth.lastNavType = this.lastNavType;
-      this.socketOptions.auth.tabId = this.tabId;
-      this.socketOptions.auth.more = this.tabId;
       log("info", "Uib:ioSetup", `\u2705 SOCKET CONNECTED. Connection count: ${this.connectedNum}, Is a Recovery?: ${this._socket.recovered}. 
 Namespace: ${this.ioNamespace}`)();
       this._dispatchCustomEvent("uibuilder:socket:connected", { "numConnections": this.connectedNum, "isRecovery": this._socket.recovered });
@@ -6346,12 +6380,6 @@ Namespace: ${this.ioNamespace}`)();
         this.set("ioConnected", false);
       }
       this.socketOptions.path = this.ioPath;
-      this.socketOptions.auth.pageName = this.pageName;
-      this.socketOptions.auth.clientId = this.clientId;
-      this.socketOptions.transportOptions.polling.extraHeaders["x-clientid"] = `${_a._meta.displayName}; ${_a._meta.type}; ${_a._meta.version}; ${this.clientId}`;
-      this.socketOptions.auth.tabId = this.tabId;
-      this.socketOptions.auth.lastNavType = this.lastNavType;
-      this.socketOptions.auth.connectedNum = this.connectedNum;
       log("trace", "Uib:ioSetup", `About to create IO object. Transports: [${this.socketOptions.transports.join(", ")}]`)();
       this._socket = lookup2(this.ioNamespace, this.socketOptions);
       this._socket.on("connect", this._onConnect.bind(this));
@@ -6450,7 +6478,7 @@ ioPath: ${this.ioPath}`)();
       this._dispatchCustomEvent("uibuilder:startComplete");
     }
     //#endregion -------- ------------ -------- //
-  }, _pingInterval = new WeakMap(), _propChangeCallbacks = new WeakMap(), _msgRecvdByTopicCallbacks = new WeakMap(), _timerid = new WeakMap(), _MsgHandler = new WeakMap(), _isShowMsg = new WeakMap(), _isShowStatus = new WeakMap(), _intersectionObserver = new WeakMap(), _sendUrlHash = new WeakMap(), _extCommands = new WeakMap(), _managedVars = new WeakMap(), _showStatus = new WeakMap(), _uiObservers = new WeakMap(), //#region --- Static variables ---
+  }, _pingInterval = new WeakMap(), _propChangeCallbacks = new WeakMap(), _msgRecvdByTopicCallbacks = new WeakMap(), _timerid = new WeakMap(), _MsgHandler = new WeakMap(), _isShowMsg = new WeakMap(), _isShowStatus = new WeakMap(), _sendUrlHash = new WeakMap(), _extCommands = new WeakMap(), _managedVars = new WeakMap(), _showStatus = new WeakMap(), _uiObservers = new WeakMap(), //#region --- Static variables ---
   __publicField(_a, "_meta", {
     version,
     type: "module",
diff --git a/front-end/uibuilder.iife.min.js b/front-end/uibuilder.iife.min.js
index fbe0aebf..2e8ffa5f 100644
--- a/front-end/uibuilder.iife.min.js
+++ b/front-end/uibuilder.iife.min.js
@@ -1,2 +1,2 @@
-(()=>{var Et=Object.create;var he=Object.defineProperty;var Ct=Object.getOwnPropertyDescriptor;var St=Object.getOwnPropertyNames;var Nt=Object.getPrototypeOf,xt=Object.prototype.hasOwnProperty;var Ot=(s,e,t)=>e in s?he(s,e,{enumerable:!0,configurable:!0,writable:!0,value:t}):s[e]=t;var De=(s=>typeof require<"u"?require:typeof Proxy<"u"?new Proxy(s,{get:(e,t)=>(typeof require<"u"?require:e)[t]}):s)(function(s){if(typeof require<"u")return require.apply(this,arguments);throw Error('Dynamic require of "'+s+'" is not supported')});var Rt=(s,e)=>()=>(e||s((e={exports:{}}).exports,e),e.exports),At=(s,e)=>{for(var t in e)he(s,t,{get:e[t],enumerable:!0})},Tt=(s,e,t,i)=>{if(e&&typeof e=="object"||typeof e=="function")for(let r of St(e))!xt.call(s,r)&&r!==t&&he(s,r,{get:()=>e[r],enumerable:!(i=Ct(e,r))||i.enumerable});return s};var Ee=(s,e,t)=>(t=s!=null?Et(Nt(s)):{},Tt(e||!s||!s.__esModule?he(t,"default",{value:s,enumerable:!0}):t,s));var h=(s,e,t)=>(Ot(s,typeof e!="symbol"?e+"":e,t),t),Pe=(s,e,t)=>{if(!e.has(s))throw TypeError("Cannot "+t)};var u=(s,e,t)=>(Pe(s,e,"read from private field"),t?t.call(s):e.get(s)),E=(s,e,t)=>{if(e.has(s))throw TypeError("Cannot add the same private member more than once");e instanceof WeakSet?e.add(s):e.set(s,t)},x=(s,e,t,i)=>(Pe(s,e,"write to private field"),i?i.call(s,t):e.set(s,t),t);var He=Rt((si,qe)=>{var d,$t=(d=class{constructor(e,t,i){h(this,"version","6.6.0-src");h(this,"sanitiseExtraTags",["uib-var"]);h(this,"sanitiseExtraAttribs",["variable","report","undefined"]);h(this,"window");if(e)this.window=e;else throw new Error("Ui:constructor. Current environment does not include `window`, UI functions cannot be used.");this.document=this.window.document,t?d.log=t:d.log=function(){return function(){}},i?this.syntaxHighlight=i:this.syntaxHighlight=function(){}}ui(e){let t={};e._ui?t=e:t._ui=e,this._uiManager(t)}replaceSlot(e,t){t.slot&&e&&(this.window.DOMPurify&&(t.slot=this.window.DOMPurify.sanitize(t.slot)),e.innerHTML=t.slot)}convertMarkdown(e){if(!e)return"";if(!this.window.markdownit)return e;let t={html:!0,linkify:!0,_highlight:!0,langPrefix:"language-",highlight(r,n){if(n&&this.window.hljs&&this.window.hljs.getLanguage(n))try{return'<pre class="highlight" data-language="'.concat(n.toUpperCase(),'">\n                                <code class="language-').concat(n,'">').concat(this.window.hljs.highlightAuto(r).value,"</code></pre>")}finally{}return'<pre class="highlight"><code>'.concat(i.utils.escapeHtml(r),"</code></pre>")}},i=this.window.markdownit(t);return i.render(e)}sanitiseHTML(e){return this.window.DOMPurify?this.window.DOMPurify.sanitize(e,{ADD_TAGS:this.sanitiseExtraTags,ADD_ATTR:this.sanitiseExtraAttribs}):e}replaceSlotMarkdown(e,t){e&&t.slotMarkdown&&(t.slotMarkdown=this.convertMarkdown(t.slotMarkdown),t.slotMarkdown=this.sanitiseHTML(t.slotMarkdown),e.innerHTML=t.slotMarkdown)}loadScriptSrc(e){let t=this.document.createElement("script");t.src=e,t.async=!1,this.document.head.appendChild(t)}loadStyleSrc(e){let t=this.document.createElement("link");t.href=e,t.rel="stylesheet",t.type="text/css",this.document.head.appendChild(t)}loadScriptTxt(e){let t=this.document.createElement("script");t.async=!1,t.textContent=e,this.document.head.appendChild(t)}loadStyleTxt(e){let t=this.document.createElement("style");t.textContent=e,this.document.head.appendChild(t)}showDialog(e,t,i){let r="";if(i.payload&&typeof i.payload=="string"&&(r+=i.payload),t.content&&(r+=t.content),r===""){d.log(1,"Ui:showDialog","Toast content is blank. Not shown.")();return}!t.title&&i.topic&&(t.title=i.topic),t.title&&(r='<p class="toast-head">'.concat(t.title,"</p><p>").concat(r,"</p>")),t.noAutohide&&(t.noAutoHide=t.noAutohide),t.noAutoHide&&(t.autohide=!t.noAutoHide),t.autoHideDelay?(t.autohide||(t.autohide=!0),t.delay=t.autoHideDelay):t.autoHideDelay=1e4,Object.prototype.hasOwnProperty.call(t,"autohide")||(t.autohide=!0),e==="alert"&&(t.modal=!0,t.autohide=!1,r='<svg viewBox="0 0 192.146 192.146" style="width:30;background-color:transparent;"><path d="M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z" /></svg> '.concat(r));let n=this.document.getElementById("toaster");n===null&&(n=this.document.createElement("div"),n.id="toaster",n.title="Click to clear all notifcations",n.setAttribute("class","toaster"),n.setAttribute("role","dialog"),n.setAttribute("arial-label","Toast message"),n.onclick=function(){n.remove()},this.document.body.insertAdjacentElement("afterbegin",n));let o=this.document.createElement("div");o.title="Click to clear this notifcation",o.setAttribute("class","toast ".concat(t.variant?t.variant:""," ").concat(e)),o.innerHTML=r,o.setAttribute("role","alertdialog"),t.modal&&o.setAttribute("aria-modal",t.modal),o.onclick=function(c){c.stopPropagation(),o.remove(),n.childElementCount<1&&n.remove()},n.insertAdjacentElement(t.appendToast===!0?"beforeend":"afterbegin",o),t.autohide===!0&&setInterval(()=>{o.remove(),n.childElementCount<1&&n.remove()},t.autoHideDelay)}_showNotification(e){e.topic&&!e.title&&(e.title=e.topic),e.title||(e.title="uibuilder notification"),e.payload&&!e.body&&(e.body=e.payload),e.body||(e.body=" No message given.");try{let t=new Notification(e.title,e);return new Promise((i,r)=>{t.addEventListener("close",n=>{n.currentTarget.userAction="close",i(n)}),t.addEventListener("click",n=>{n.currentTarget.userAction="click",i(n)}),t.addEventListener("error",n=>{n.currentTarget.userAction="error",r(n)})})}catch{return Promise.reject(new Error("Browser refused to create a Notification"))}}async notification(e){if(typeof e=="string"&&(e={body:e}),typeof Notification>"u")return Promise.reject(new Error("Notifications not available in this browser"));let t=Notification.permission;return t==="denied"?Promise.reject(new Error("Notifications not permitted by user")):t==="granted"?this._showNotification(e):(t=await Notification.requestPermission(),t==="granted"?this._showNotification(e):Promise.reject(new Error("Notifications not permitted by user")))}loadui(e){if(!fetch){d.log(0,"Ui:loadui","Current environment does not include `fetch`, skipping.")();return}if(!e){d.log(0,"Ui:loadui","url parameter must be provided, skipping.")();return}fetch(e).then(t=>{if(t.ok===!1)throw new Error("Could not load '".concat(e,"'. 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",t)()})}_uiComposeComponent(e,t){t.attributes&&Object.keys(t.attributes).forEach(i=>{i==="value"&&(e.value=t.attributes[i]),i.startsWith("xlink:")?e.setAttributeNS("http://www.w3.org/1999/xlink",i,t.attributes[i]):e.setAttribute(i,t.attributes[i])}),t.id&&e.setAttribute("id",t.id),t.type==="svg"&&(e.setAttributeNS("http://www.w3.org/2000/xmlns/","xmlns","http://www.w3.org/2000/svg"),e.setAttributeNS("http://www.w3.org/2000/xmlns/","xmlns:xlink","http://www.w3.org/1999/xlink")),t.events&&Object.keys(t.events).forEach(i=>{i.toLowerCase==="onclick"&&(i="click");try{e.addEventListener(i,r=>{new Function("evt","".concat(t.events[i],"(evt)"))(r)})}catch(r){d.log("error","Ui:_uiComposeComponent","Add event '".concat(i,"' for element '").concat(t.type,"': Cannot add event handler. 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n(){i||(i=!0,b(),t.close(),t=null)}let o=N=>{let _=new Error("probe error: "+N);_.transport=t.name,n(),this.emitReserved("upgradeError",_)};function c(){o("transport closed")}function l(){o("socket closed")}function m(N){t&&N.name!==t.name&&n()}let b=()=>{t.removeListener("open",r),t.removeListener("error",o),t.removeListener("close",c),this.off("close",l),this.off("upgrading",m)};t.once("open",r),t.once("error",o),t.once("close",c),this.once("close",l),this.once("upgrading",m),this.upgrades.indexOf("webtransport")!==-1&&e!=="webtransport"?this.setTimeoutFn(()=>{i||t.open()},200):t.open()}onOpen(){if(this.readyState="open",s.priorWebsocketSuccess=this.transport.name==="websocket",this.emitReserved("open"),this.flush(),this.readyState==="open"&&this.opts.upgrade){let 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s}function yt(s,e){return s.data=$e(s.data,e),delete s.attachments,s}function $e(s,e){if(!s)return s;if(s&&s._placeholder===!0){if(typeof s.num=="number"&&s.num>=0&&s.num<e.length)return e[s.num];throw new Error("illegal attachments")}else if(Array.isArray(s))for(let t=0;t<s.length;t++)s[t]=$e(s[t],e);else if(typeof s=="object")for(let t in s)Object.prototype.hasOwnProperty.call(s,t)&&(s[t]=$e(s[t],e));return s}var Xt=["connect","connect_error","disconnect","disconnecting","newListener","removeListener"],wt=5,f;(function(s){s[s.CONNECT=0]="CONNECT",s[s.DISCONNECT=1]="DISCONNECT",s[s.EVENT=2]="EVENT",s[s.ACK=3]="ACK",s[s.CONNECT_ERROR=4]="CONNECT_ERROR",s[s.BINARY_EVENT=5]="BINARY_EVENT",s[s.BINARY_ACK=6]="BINARY_ACK"})(f||(f={}));var Le=class{constructor(e){this.replacer=e}encode(e){return(e.type===f.EVENT||e.type===f.ACK)&&re(e)?this.encodeAsBinary({type:e.type===f.EVENT?f.BINARY_EVENT:f.BINARY_ACK,nsp:e.nsp,data:e.data,id:e.id}):[this.encodeAsString(e)]}encodeAsString(e){let t=""+e.type;return(e.type===f.BINARY_EVENT||e.type===f.BINARY_ACK)&&(t+=e.attachments+"-"),e.nsp&&e.nsp!=="/"&&(t+=e.nsp+","),e.id!=null&&(t+=e.id),e.data!=null&&(t+=JSON.stringify(e.data,this.replacer)),t}encodeAsBinary(e){let t=gt(e),i=this.encodeAsString(t.packet),r=t.buffers;return r.unshift(i),r}};function bt(s){return Object.prototype.toString.call(s)==="[object Object]"}var Ue=class s extends y{constructor(e){super(),this.reviver=e}add(e){let t;if(typeof e=="string"){if(this.reconstructor)throw new Error("got plaintext data when reconstructing a packet");t=this.decodeString(e);let i=t.type===f.BINARY_EVENT;i||t.type===f.BINARY_ACK?(t.type=i?f.EVENT:f.ACK,this.reconstructor=new Ie(t),t.attachments===0&&super.emitReserved("decoded",t)):super.emitReserved("decoded",t)}else if(ne(e)||e.base64)if(this.reconstructor)t=this.reconstructor.takeBinaryData(e),t&&(this.reconstructor=null,super.emitReserved("decoded",t));else throw new Error("got binary data when not reconstructing a packet");else throw new Error("Unknown type: "+e)}decodeString(e){let t=0,i={type:Number(e.charAt(0))};if(f[i.type]===void 0)throw new Error("unknown packet type "+i.type);if(i.type===f.BINARY_EVENT||i.type===f.BINARY_ACK){let n=t+1;for(;e.charAt(++t)!=="-"&&t!=e.length;);let o=e.substring(n,t);if(o!=Number(o)||e.charAt(t)!=="-")throw new Error("Illegal attachments");i.attachments=Number(o)}if(e.charAt(t+1)==="/"){let n=t+1;for(;++t&&!(e.charAt(t)===","||t===e.length););i.nsp=e.substring(n,t)}else i.nsp="/";let r=e.charAt(t+1);if(r!==""&&Number(r)==r){let n=t+1;for(;++t;){let o=e.charAt(t);if(o==null||Number(o)!=o){--t;break}if(t===e.length)break}i.id=Number(e.substring(n,t+1))}if(e.charAt(++t)){let n=this.tryParse(e.substr(t));if(s.isPayloadValid(i.type,n))i.data=n;else throw new Error("invalid payload")}return i}tryParse(e){try{return JSON.parse(e,this.reviver)}catch{return!1}}static isPayloadValid(e,t){switch(e){case f.CONNECT:return bt(t);case f.DISCONNECT:return t===void 0;case 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this._addToQueue(t),this;let i={type:f.EVENT,data:t};if(i.options={},i.options.compress=this.flags.compress!==!1,typeof t[t.length-1]=="function"){let o=this.ids++,c=t.pop();this._registerAckCallback(o,c),i.id=o}let r=this.io.engine&&this.io.engine.transport&&this.io.engine.transport.writable;return this.flags.volatile&&(!r||!this.connected)||(this.connected?(this.notifyOutgoingListeners(i),this.packet(i)):this.sendBuffer.push(i)),this.flags={},this}_registerAckCallback(e,t){var i;let r=(i=this.flags.timeout)!==null&&i!==void 0?i:this._opts.ackTimeout;if(r===void 0){this.acks[e]=t;return}let n=this.io.setTimeoutFn(()=>{delete this.acks[e];for(let o=0;o<this.sendBuffer.length;o++)this.sendBuffer[o].id===e&&this.sendBuffer.splice(o,1);t.call(this,new Error("operation has timed out"))},r);this.acks[e]=(...o)=>{this.io.clearTimeoutFn(n),t.apply(this,[null,...o])}}emitWithAck(e,...t){let i=this.flags.timeout!==void 0||this._opts.ackTimeout!==void 0;return new 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s}function gt(s,e){return s.data=Te(s.data,e),delete s.attachments,s}function Te(s,e){if(!s)return s;if(s&&s._placeholder===!0){if(typeof s.num=="number"&&s.num>=0&&s.num<e.length)return e[s.num];throw new Error("illegal attachments")}else if(Array.isArray(s))for(let t=0;t<s.length;t++)s[t]=Te(s[t],e);else if(typeof s=="object")for(let t in s)Object.prototype.hasOwnProperty.call(s,t)&&(s[t]=Te(s[t],e));return s}var Gt=["connect","connect_error","disconnect","disconnecting","newListener","removeListener"],bt=5,p;(function(s){s[s.CONNECT=0]="CONNECT",s[s.DISCONNECT=1]="DISCONNECT",s[s.EVENT=2]="EVENT",s[s.ACK=3]="ACK",s[s.CONNECT_ERROR=4]="CONNECT_ERROR",s[s.BINARY_EVENT=5]="BINARY_EVENT",s[s.BINARY_ACK=6]="BINARY_ACK"})(p||(p={}));var $e=class{constructor(e){this.replacer=e}encode(e){return(e.type===p.EVENT||e.type===p.ACK)&&se(e)?this.encodeAsBinary({type:e.type===p.EVENT?p.BINARY_EVENT:p.BINARY_ACK,nsp:e.nsp,data:e.data,id:e.id}):[this.encodeAsString(e)]}encodeAsString(e){let t=""+e.type;return(e.type===p.BINARY_EVENT||e.type===p.BINARY_ACK)&&(t+=e.attachments+"-"),e.nsp&&e.nsp!=="/"&&(t+=e.nsp+","),e.id!=null&&(t+=e.id),e.data!=null&&(t+=JSON.stringify(e.data,this.replacer)),t}encodeAsBinary(e){let t=mt(e),i=this.encodeAsString(t.packet),r=t.buffers;return r.unshift(i),r}};function yt(s){return Object.prototype.toString.call(s)==="[object Object]"}var Le=class s extends y{constructor(e){super(),this.reviver=e}add(e){let t;if(typeof e=="string"){if(this.reconstructor)throw new Error("got plaintext data when reconstructing a packet");t=this.decodeString(e);let i=t.type===p.BINARY_EVENT;i||t.type===p.BINARY_ACK?(t.type=i?p.EVENT:p.ACK,this.reconstructor=new Ue(t),t.attachments===0&&super.emitReserved("decoded",t)):super.emitReserved("decoded",t)}else if(re(e)||e.base64)if(this.reconstructor)t=this.reconstructor.takeBinaryData(e),t&&(this.reconstructor=null,super.emitReserved("decoded",t));else throw new Error("got binary data when not reconstructing a 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this._addToQueue(t),this;let i={type:p.EVENT,data:t};if(i.options={},i.options.compress=this.flags.compress!==!1,typeof t[t.length-1]=="function"){let o=this.ids++,c=t.pop();this._registerAckCallback(o,c),i.id=o}let r=this.io.engine&&this.io.engine.transport&&this.io.engine.transport.writable;return this.flags.volatile&&(!r||!this.connected)||(this.connected?(this.notifyOutgoingListeners(i),this.packet(i)):this.sendBuffer.push(i)),this.flags={},this}_registerAckCallback(e,t){var i;let r=(i=this.flags.timeout)!==null&&i!==void 0?i:this._opts.ackTimeout;if(r===void 0){this.acks[e]=t;return}let n=this.io.setTimeoutFn(()=>{delete this.acks[e];for(let o=0;o<this.sendBuffer.length;o++)this.sendBuffer[o].id===e&&this.sendBuffer.splice(o,1);t.call(this,new Error("operation has timed out"))},r);this.acks[e]=(...o)=>{this.io.clearTimeoutFn(n),t.apply(this,[null,...o])}}emitWithAck(e,...t){let i=this.flags.timeout!==void 0||this._opts.ackTimeout!==void 0;return new 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0,form:c,props:r,attribs:o,classes:f,notification:x,event:e.type,altKey:e.altKey,ctrlKey:e.ctrlKey,shiftKey:e.shiftKey,metaKey:e.metaKey,pointerType:e.pointerType,nodeName:i.nodeName,clientId:this.clientId,pageName:this.pageName,tabId:this.tabId}};l.length>0&&l.forEach(m=>{k.payload[m.key]=m.val}),e.type==="change"&&(k._ui.newValue=k.payload.value="checked"in i?i.checked:e.target.value),a("trace","Uib:eventSend","Sending msg to Node-RED",k)(),i.dataset&&i.dataset.length===0&&a("warn","Uib:eventSend","No payload in msg. data-* attributes should be used.")(),this._send(k,this._ioChannels.client,t)}htmlSend(e="",t=!0){let i="<!doctype html>\n".concat(document.documentElement.outerHTML),r={payload:i,length:i.length,topic:this.topic};return a("trace","Uib:htmlSend","Sending full HTML to Node-RED",r)(),t===!0&&this._send(r,this._ioChannels.client,e),i}_uibCommand(e){var l;if(!e._uib||!e._uib.command){a("error","uibuilder:_uibCommand","Invalid command message 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f=!1,b=!1;e._uib.options&&e._uib.options.store&&(e._uib.options.store===!0&&(f=!0),e._uib.options.autoload===!0&&(b=!0)),o=this.set(i,r,f,b);break}case"showMsg":{o=this.showMsg(r,i);break}case"showStatus":{o=this.showStatus(r,i);break}case"uiGet":{o=g.uiGet(i,r);break}case"uiWatch":{o=this.uiWatch(i);break}case"watchUrlHash":{o=this.watchUrlHash(i);break}default:{a("warning","Uib:_uibCommand","Command '".concat(t,"' not yet implemented"))();break}}n!==!0&&(o===void 0&&(o="'".concat(i,"' is undefined")),Object(o).constructor===Promise?o.then(f=>(e.payload=e._uib.response=f,e.info=e._uib.info=c,e.topic||(e.topic=this.topic||"uib ".concat(t," for '").concat(i,"'")),this.send(e),!0)).catch(f=>{a(0,"Uib:_uibCommand","Error: ",f)()}):(e.payload=e._uib.response=o,e.info=e._uib.info=c,e.topic||(e.topic=this.topic||"uib ".concat(t," for '").concat(i,"'")),this.send(e)))}_forThis(e){let t=!0;return e.pageName&&e.pageName!==this.pageName&&(a("trace","Uib:_msgRcvdEvents:_uib","Not for this page")(),t=!1),e.clientId&&e.clientId!==this.clientId&&(a("trace","Uib:_msgRcvdEvents:_uib","Not for this clientId")(),t=!1),e.tabId&&e.tabId!==this.tabId&&(a("trace","Uib:_msgRcvdEvents:_uib","Not for this tabId")(),t=!1),t}_msgRcvdEvents(e){if(this._dispatchCustomEvent("uibuilder:stdMsgReceived",e),e.topic&&this._dispatchCustomEvent("uibuilder:msg:topic:".concat(e.topic),e),e._uib){if(!this._forThis(e._uib))return;if(e._uib.reload===!0){a("trace","Uib:_msgRcvdEvents:_uib:reload","reloading")(),location.reload();return}if(e._uib.command){this._uibCommand(e);return}e._uib.componentRef==="globalNotification"&&g.showDialog("notify",e._uib.options,e),e._uib.componentRef==="globalAlert"&&g.showDialog("alert",e._uib.options,e)}if(e._ui){if(!this._forThis(e._ui))return;a("trace","Uib:_msgRcvdEvents:_ui","Calling _uiManager")(),this._dispatchCustomEvent("uibuilder:msg:_ui",e),g._uiManager(e)}}_stdMsgFromServer(e){e=Me(e,"payload"),!(e._uib&&!this._forThis(e._uib))&&(e._ui&&!this._forThis(e._ui)||(this._checkTimestamp(e),this.set("msgsReceived",++this.msgsReceived),this._msgRcvdEvents(e),"_ui"in e&&!("payload"in e)||this.set("msg",e),a("info","Uib:ioSetup:stdMsgFromServer","Channel '".concat(this._ioChannels.server,"'. Received msg #").concat(this.msgsReceived,"."),e)()))}_ctrlMsgFromServer(e){if(e===null)e={};else if(typeof e!="object"){let t={};t["uibuilderCtrl:"+this._ioChannels.control]=e,e=t}switch(this._checkTimestamp(e),this.set("ctrlMsg",e),this.set("msgsCtrlReceived",++this.msgsCtrlReceived),a("trace","Uib:ioSetup:_ctrlMsgFromServer","Channel '".concat(this._ioChannels.control,"'. Received control msg #").concat(this.msgsCtrlReceived),e)(),e.uibuilderCtrl){case"shutdown":{a("info","Uib:ioSetup:".concat(this._ioChannels.control),'\u274C Received "shutdown" from server')(),this.set("serverShutdown",void 0);break}case"client connect":{a("trace","Uib:ioSetup:".concat(this._ioChannels.control),'Received "client connect" from server')(),a("info","Uib:ioSetup:".concat(this._ioChannels.control),"\u2705 Server connected. Version: ".concat(e.version,"\nServer time: ").concat(e.serverTimestamp,", Sever time offset: ").concat(this.serverTimeOffset," hours"))(),E._meta.version.startsWith(e.version.split("-")[0])||a("warn","Uib:ioSetup:".concat(this._ioChannels.control),"Server version (".concat(e.version,") not the same as the client version (").concat(E._meta.version,")"))(),this.autoSendReady===!0&&a("trace","Uib:ioSetup:".concat(this._ioChannels.control,"/client connect"),"Auto-sending ready-for-content/replay msg to server");break}default:a("trace","uibuilderfe:ioSetup:".concat(this._ioChannels.control),"Received ".concat(e.uibuilderCtrl," from server"))}}beaconLog(e,t){t||(t="debug"),navigator.sendBeacon("./_clientLog","".concat(t,"::").concat(e))}logToServer(){this.sendCtrl({uibuilderCtrl:"client log message",payload:arguments,_socketId:this._socket.id,clientId:this.clientId,tabId:this.tabId,pageName:this.pageName,connections:this.connectedNum,lastNavType:this.lastNavType})}_getIOnamespace(){let e;if(e=this.cookies["uibuilder-namespace"],e===void 0||e===""){let t=window.location.pathname.split("/").filter(function(i){return i.trim()!==""});t.length>0&&t[t.length-1].endsWith(".html")&&t.pop(),e=t.pop(),a("trace","uibuilder.module.js:getIOnamespace","Socket.IO namespace found via url path: ".concat(e))()}else a("trace","uibuilder.module.js:getIOnamespace","Socket.IO namespace found via cookie: ".concat(e))();return this.url=e,e="/"+e,a("trace","uibuilder.module.js:getIOnamespace","Final Socket.IO namespace: ".concat(e))(),e}_checkConnect(e,t,i=1){if(navigator.onLine!==!1)return e||(e=this.retryMs),t||(t=this.retryFactor),a("trace","Uib:checkConnect","Checking connection. Connected: ".concat(this._socket.connected,". Timer: ").concat(u(this,_),". Depth: ").concat(i,". Delay: ").concat(e,". Factor: ").concat(t),this._socket)(),this._socket.connected===!0?(u(this,_)&&(window.clearTimeout(u(this,_)),A(this,_,null)),this.set("ioConnected",!0),this.set("socketError",null),!0):(this.set("ioConnected",!1),u(this,_)&&window.clearTimeout(u(this,_)),A(this,_,window.setTimeout(()=>{a("warn","Uib:checkConnect:setTimeout","Socket.IO reconnection attempt. Current delay: ".concat(e,". Depth: ").concat(i))(),this._socket.close(),this._socket.connect(),A(this,_,null),this._checkConnect(e*t,t,i++)},e)),!1)}_onConnect(){a("info","Uib:ioSetup","\u2705 SOCKET CONNECTED. Connection count: ".concat(this.connectedNum,", Is a Recovery?: ").concat(this._socket.recovered,". \nNamespace: ").concat(this.ioNamespace))(),this._dispatchCustomEvent("uibuilder:socket:connected",{numConnections:this.connectedNum,isRecovery:this._socket.recovered}),this._checkConnect()}_onDisconnect(e){a("info","Uib:ioSetup:socket-disconnect","\u26D4 Socket Disconnected. Reason: ".concat(e))(),this._dispatchCustomEvent("uibuilder:socket:disconnected",e),this._checkConnect()}_ioSetup(){return J===void 0?(a("error","Uib:ioSetup","Socket.IO client not loaded, Node-RED comms will not work")(),!1):(this._socket&&(a("trace","Uib:ioSetup","Removing listeners in preparation for redoing Socket.IO connections")(),u(this,_)&&(window.clearTimeout(u(this,_)),A(this,_,null)),this._socket.close(),this._socket.offAny(),this._socket=void 0,this.set("ioConnected",!1)),this.socketOptions.path=this.ioPath,a("trace","Uib:ioSetup","About to create IO object. Transports: [".concat(this.socketOptions.transports.join(", "),"]"))(),this._socket=J(this.ioNamespace,this.socketOptions),this._socket.on("connect",this._onConnect.bind(this)),this._socket.on(this._ioChannels.server,this._stdMsgFromServer.bind(this)),this._socket.on(this._ioChannels.control,this._ctrlMsgFromServer.bind(this)),this._socket.on("disconnect",this._onDisconnect.bind(this)),this._socket.on("connect_error",e=>{navigator.onLine!==!1&&(a("error","Uib:ioSetup:connect_error","\u274C Socket.IO Connect Error. Reason: ".concat(e.message),e)(),this.set("ioConnected",!1),this.set("socketError",e),this._dispatchCustomEvent("uibuilder:socket:disconnected",e))}),this._socket.on("error",e=>{a("error","Uib:ioSetup:error","\u274C Socket.IO Error. Reason: ".concat(e.message),e)(),this.set("ioConnected",!1),this.set("socketError",e),this._dispatchCustomEvent("uibuilder:socket:disconnected",e)}),this._checkConnect(),!0)}start(e){a("trace","Uib:start","Starting")(),u(this,oe)&&this.cancelChange("msg",u(this,oe)),this.started===!0&&a("info","Uib:start","Start function already called. Resetting Socket.IO and msg handler.")(),a("log","Uib:start","Cookies: ",this.cookies,"\nClient ID: ".concat(this.clientId))(),a("trace","Uib:start","ioNamespace: ",this.ioNamespace,"\nioPath: ".concat(this.ioPath))(),e&&(e.ioNamespace!==void 0&&e.ioNamespace!==null&&e.ioNamespace!==""&&this.set("ioNamespace",e.ioNamespace),e.ioPath!==void 0&&e.ioPath!==null&&e.ioPath!==""&&this.set("ioPath",e.ioPath)),document.styleSheets.length>=1||document.styleSheets.length===1&&document.styleSheets[0].cssRules.length===0?a("info","Uib:start","Styles already loaded so not loading uibuilder default styles.")():e&&e.loadStylesheet===!1?a("info","Uib:start","No styles loaded & options.loadStylesheet === false.")():(a("info","Uib:start","No styles loaded, loading uibuilder default styles.")(),this.loadStyleSrc("".concat(this.httpNodeRoot,"/uibuilder/uib-brand.min.css")));let[t]=performance.getEntriesByType("navigation");if(this.set("lastNavType",t.type),this.set("started",this._ioSetup()),this.started===!0?a("trace","Uib:start","Start completed. Socket.IO client library loaded.")():a("error","Uib:start","Start completed. ERROR: Socket.IO client library NOT LOADED.")(),this._watchHashChanges(),window.Vue){this.set("isVue",!0);try{this.set("vueVersion",window.Vue.version)}catch{}a("trace","Uib:start","VueJS is loaded. Version: ".concat(this.vueVersion))()}else a("trace","Uib:start","VueJS is not loaded.")();window.DOMPurify?(this.set("purify",!0),a("trace","Uib:start","DOMPurify is loaded.")()):a("trace","Uib:start","DOMPurify is not loaded.")(),window.markdownit?(this.set("markdown",!0),a("trace","Uib:start","Markdown-IT is loaded.")()):a("trace","Uib:start","Markdown-IT is not loaded.")(),this.onChange("msg",i=>{if(u(this,z)===!0){let r=document.getElementById("uib_last_msg");r&&(r.innerHTML=this.syntaxHighlight(i))}}),this._dispatchCustomEvent("uibuilder:startComplete")}},q=new WeakMap,O=new WeakMap,T=new WeakMap,_=new WeakMap,oe=new WeakMap,z=new WeakMap,Y=new WeakMap,H=new WeakMap,ve=new WeakMap,ae=new WeakMap,ce=new WeakMap,M=new WeakMap,h(E,"_meta",{version:wt,type:"module",displayName:"uibuilder"}),E),ke=new ei;window.uibuilder?a("error","uibuilder.module.js","`uibuilder` already assigned to window. Have you tried to load it more than once?"):window.uibuilder=ke;window.uib?a("warn","uibuilder.module.js","`uib` shortcut already assigned to window."):window.uib=ke;window.$?a("warn","uibuilder.module.js","Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` instead."):window.$=window.uibuilder.$;window.$$?a("warn","uibuilder.module.js","Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` instead."):window.$$=window.uibuilder.$$;var Js=ke;ke.start();customElements.define("uib-var",G);})();
 //# sourceMappingURL=uibuilder.iife.min.js.map
diff --git a/front-end/uibuilder.iife.min.js.map b/front-end/uibuilder.iife.min.js.map
index 44cb417e..da876191 100644
--- a/front-end/uibuilder.iife.min.js.map
+++ b/front-end/uibuilder.iife.min.js.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
   "sources": ["src/front-end-module/ui.js", "src/front-end-module/uibuilder.module.js", "src/components/uib-var.js", "node_modules/engine.io-parser/build/esm/commons.js", "node_modules/engine.io-parser/build/esm/encodePacket.browser.js", "node_modules/engine.io-parser/build/esm/contrib/base64-arraybuffer.js", "node_modules/engine.io-parser/build/esm/decodePacket.browser.js", "node_modules/engine.io-parser/build/esm/index.js", "node_modules/@socket.io/component-emitter/index.mjs", "node_modules/engine.io-client/build/esm/globalThis.browser.js", "node_modules/engine.io-client/build/esm/util.js", "node_modules/engine.io-client/build/esm/contrib/parseqs.js", "node_modules/engine.io-client/build/esm/transport.js", "node_modules/engine.io-client/build/esm/contrib/yeast.js", "node_modules/engine.io-client/build/esm/contrib/has-cors.js", "node_modules/engine.io-client/build/esm/transports/xmlhttprequest.browser.js", "node_modules/engine.io-client/build/esm/transports/polling.js", "node_modules/engine.io-client/build/esm/transports/websocket-constructor.browser.js", "node_modules/engine.io-client/build/esm/transports/websocket.js", "node_modules/engine.io-client/build/esm/transports/webtransport.js", "node_modules/engine.io-client/build/esm/transports/index.js", "node_modules/engine.io-client/build/esm/contrib/parseuri.js", "node_modules/engine.io-client/build/esm/socket.js", "node_modules/engine.io-client/build/esm/index.js", "node_modules/socket.io-client/build/esm/url.js", "node_modules/socket.io-parser/build/esm/index.js", "node_modules/socket.io-parser/build/esm/is-binary.js", "node_modules/socket.io-parser/build/esm/binary.js", "node_modules/socket.io-client/build/esm/on.js", "node_modules/socket.io-client/build/esm/socket.js", "node_modules/socket.io-client/build/esm/contrib/backo2.js", "node_modules/socket.io-client/build/esm/manager.js", "node_modules/socket.io-client/build/esm/index.js"],
-  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\nconst Ui = class Ui {\n    version = '6.6.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        this._uiManager(msg)\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += msg.payload\n        if (ui.content) content += ui.content\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    // Namespaces - See https://stackoverflow.com/a/52572048/1309986\n    // const NAMESPACES = {\n    //     svg: 'http://www.w3.org/2000/svg',\n    //     html: 'http://www.w3.org/1999/xhtml',\n    //     xml: 'http://www.w3.org/XML/1998/namespace',\n    //     xlink: 'http://www.w3.org/1999/xlink',\n    //     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n    // }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n\n    } // --- end of _uiManager ---\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName !== null && propName !== '') {\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    // Nightmare of different object types in a DOM Element!\n                    if (prop.constructor.name === 'NamedNodeMap') { // Attributes\n                        const p = {}\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                        out.push(p)\n                    } else if (!prop.constructor.name.toLowerCase().includes('map')) { // Ordinary properties\n                        out.push({\n                            [propName]: prop\n                        })\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                        out.push(p)\n                    }\n                }\n\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n", "/* This is the Front-End JavaScript for uibuilder  in HTML Module form\n  It provides a number of global objects that can be used in your own javascript.\n  see the docs folder `./docs/uibuilder.module.md` for details of how to use this fully.\n\n  Please use the default index.js file for your own code and leave this as-is.\n  See Uib._meta for client version string\n\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n//#region --- Type Defs --- //\n/**\n * A string containing HTML markup\n * @typedef {string} html\n */\n//#endregion --- Type Defs --- //\n\n//#region --- We need the Socket.IO & ui libraries & the uib-var component  --- //\n// @ts-ignore - Note: Only works when using esbuild to bundle\nimport Ui from './ui'\nimport UibVar from '../components/uib-var'\nimport io from 'socket.io-client'\n\n// TODO - Maybe - check if already loaded as window['io']?\n// TODO - Maybe - Should this be moved to inside the class - would know the httpRoot then so less need to guess?\n// TODO           Or, could pull the cookie processing out of the class\n// const ioLocns = [ // Likely locations of the Socket.IO client library\n//     // Where it should normally be\n//     '../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and haven't changed httpNodeRoot\n//     '/uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and have changed httpNodeRoot\n//     '../../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Direct from the Internet - last ditch attempt\n//     'https://cdn.jsdelivr.net/npm/socket.io-client/+esm',\n// ]\n\n// let io\n// for (const locn of ioLocns) {\n//     try {\n//         ({ io } = await import(locn))\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library found at '${locn}'`)()\n//     } catch (e) {\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library not found at '${locn}'`)()\n//     }\n//     if (io) break\n// }\n// if (!io) log('error', 'uibuilder.module.js', 'Socket.IO client failed to load')()\n//#endregion -------- -------- -------- //\n\nconst version = '6.6.0-src'\n\n// TODO Add option to allow log events to be sent back to Node-RED as uib ctrl msgs\n//#region --- Module-level utility functions --- //\n\n// @ts-ignore Detect whether the loaded library is minified or not\nconst isMinified = !(/param/).test(function (param) { }) // eslint-disable-line no-unused-vars\n\n//#region --- print/console - debugging output functions --- //\n\n/** Default log level - Error & Warn */\nlet logLevel = isMinified ? 0 : 1  // When using minified lib, assume production and only log errors otherwise also log warn\n// function changeLogLevel(level) {\n//     logLevel = level\n//     console.trace = logLevel < 4 ? function(){} : console.trace\n//     console.debug = logLevel < 2 ? function(){} : console.debug\n//     if ( logLevel < 1 ) {\n//         console.log = console.group = console.groupEnd =  function(){}\n//     }\n// }\n\n// Experimental\nconst LOG_STYLES = {\n    // 0\n    error: {\n        css: 'background: red; color: black;',\n        txtCss: 'color: red; ',\n        pre: '\u26D4 ',\n        console: 'error',  // or trace\n    },\n    // 1\n    warn: {\n        css: 'background: darkorange; color: black;',\n        txtCss: 'color: darkorange; ',\n        pre: '\u26A0 ',\n        console: 'warn',\n    },\n    // 2\n    info: {\n        css: 'background: aqua; color: black;',\n        txtCss: 'color: aqua;',\n        pre: '\u2757 ',\n        console: 'info',\n    },\n    // 3\n    log: {\n        css: 'background: grey; color: yellow;',\n        txtCss: 'color: grey;',\n        pre: '',\n        console: 'log',\n    },\n    // 4\n    debug: {\n        css: 'background: chartreuse; color: black;',\n        txtCss: 'color: chartreuse;',\n        pre: '',\n        console: 'debug',\n    },\n    // 5\n    trace: {\n        css: 'background: indigo; color: yellow;',\n        txtCss: 'color: hotpink;',\n        pre: '',\n        console: 'log',\n    },\n\n    names: ['error', 'warn', 'info', 'log', 'debug', 'trace'],\n    reset: 'color: inherit;',\n    head: 'font-weight:bold; font-style:italic;',\n    level: 'font-weight:bold; border-radius: 3px; padding: 2px 5px; display:inline-block;',\n}\n/** Custom logging. e.g. log(2, 'here:there', 'jiminy', {fred:'jim'})()\n * @returns {Function} Log function @example log(2, 'here:there', 'jiminy', {fred:'jim'})()\n */\nfunction log() {\n    // Get the args\n    const args = Array.prototype.slice.call(arguments)\n\n    // 1st arg is the log level/type\n    let level = args.shift()\n    let strLevel\n    switch (level) {\n        case 'trace':\n        case 5: {\n            if (logLevel < 5) break\n            level = 5 // make sure level is numeric\n            strLevel = 'trace'\n            break\n        }\n\n        case 'debug':\n        case 4: {\n            if (logLevel < 4) break\n            level = 4\n            strLevel = 'debug'\n            break\n        }\n\n        case 'log':\n        case 3: {\n            if (logLevel < 3) break\n            level = 3\n            strLevel = 'log'\n            break\n        }\n\n        case 'info':\n        case '':\n        case 2: {\n            if (logLevel < 2) break\n            level = 2\n            strLevel = 'info'\n            break\n        }\n\n        case 'warn':\n        case 1: {\n            if (logLevel < 1) break\n            level = 1\n            strLevel = 'warn'\n            break\n        }\n\n        case 'error':\n        case 'err':\n        case 0: {\n            if (logLevel < 0) break\n            level = 0\n            strLevel = 'error'\n            break\n        }\n\n        default: {\n            level = -1\n            break\n        }\n\n    }\n\n    // If set to something unknown, no log output\n    if (strLevel === undefined) return function () { }\n\n    // 2nd arg is a heading that will be colour highlighted\n    const head = args.shift()\n\n    // Bind back to console.log (could use console[strLevel] but some levels ignore some formatting, use console.xxx directly or dedicated fn)\n    return Function.prototype.bind.call(\n        console[LOG_STYLES[strLevel].console],\n        console,\n        `%c${LOG_STYLES[strLevel].pre}${strLevel}%c [${head}]`, `${LOG_STYLES.level} ${LOG_STYLES[strLevel].css}`, `${LOG_STYLES.head} ${LOG_STYLES[strLevel].txtCss}`,\n        ...args\n    )\n}\n//#endregion\n\n/** A hack to dynamically load a remote module and wait until it is loaded\n * @param {string} url The URL of the module to load\n * @returns {object|null} Either the result object or null (if the load fails)\n */\n// function loadModule(url) { // eslint-disable-line no-unused-vars\n//     let done\n\n//     import(url)\n//         .then(res => {\n//             log('debug', '>> then >>', res)()\n//             done = res\n//         })\n//         .catch(err => {\n//             console.error(`[uibuilder:loadModule] Could not load module ${url}`, err)\n//             done = null\n//         })\n\n//     //  eslint-disable-next-line no-empty\n//     while (!done) { } // eslint-disable-line no-unmodified-loop-condition\n\n//     return done\n// }\n\n/** Makes a null or non-object into an object\n * If not null, moves \"thing\" to {payload:thing}\n *\n * @param {*} thing Thing to check\n * @param {string} [property='payload'] property that \"thing\" is moved to if not null and not an object\n * @returns {!object} _\n */\nfunction makeMeAnObject(thing, property) {\n    if (!property) property = 'payload'\n    if (typeof property !== 'string') {\n        log('warn', 'uibuilderfe:makeMeAnObject', `WARNING: property parameter must be a string and not: ${typeof property}`)()\n        property = 'payload'\n    }\n    let out = {}\n    if ( thing !== null && thing.constructor.name === 'Object' ) {\n        out = thing\n    } else if (thing !== null) {\n        out[property] = thing\n    }\n    return out\n} // --- End of make me an object --- //\n\n/** Joins all arguments as a URL string\n * see http://stackoverflow.com/a/28592528/3016654\n * since v1.0.10, fixed potential double // issue\n * arguments {string} URL fragments\n * @returns {string} _\n */\nfunction urlJoin() {\n    const paths = Array.prototype.slice.call(arguments)\n    const url = '/' + paths.map(function (e) {\n        return e.replace(/^\\/|\\/$/g, '')\n    })\n        .filter(function (e) {\n            return e\n        })\n        .join('/')\n    return url.replace('//', '/')\n} // ---- End of urlJoin ---- //\n\n/** Convert JSON to Syntax Highlighted HTML\n * @param {object} json A JSON/JavaScript Object\n * @returns {html} Object reformatted as highlighted HTML\n */\nfunction syntaxHighlight(json) {\n    if (json === undefined) {\n        json = '<span class=\"undefined\">undefined</span>'\n    } else {\n        try {\n            json = JSON.stringify(json, undefined, 4)\n            // json = json.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;') // eslint-disable-line newline-per-chained-call\n            json = json.replace(/(\"(\\\\u[a-zA-Z0-9]{4}|\\\\[^u]|[^\\\\\"])*\"(\\s*:)?|\\b(true|false|null)\\b|-?\\d+(?:\\.\\d*)?(?:[eE][+-]?\\d+)?)/g, function (match) { // eslint-disable-line prefer-named-capture-group\n                let cls = 'number'\n                if ((/^\"/).test(match)) {\n                    if ((/:$/).test(match)) {\n                        cls = 'key'\n                    } else {\n                        cls = 'string'\n                    }\n                } else if ((/true|false/).test(match)) {\n                    cls = 'boolean'\n                } else if ((/null/).test(match)) {\n                    cls = 'null'\n                }\n                return `<span class=\"${cls}\">${match}</span>`\n            })\n        } catch (e) {\n            json = `Syntax Highlight ERROR: ${e.message}`\n        }\n    }\n    return json\n}\n\n/** msg._ui handling functions */\nconst _ui = new Ui(window, log, syntaxHighlight)\n\n//#endregion --- Module-level utility functions --- //\n\n/** Define and export the Uib class - note that an instance of the class is also exported in the wrap-up\n * @typicalname uibuilder\n */\nexport const Uib = class Uib {\n\n    //#region --- Static variables ---\n    static _meta = {\n        version: version,\n        type: 'module',\n        displayName: 'uibuilder',\n    }\n    //#endregion ---- ---- ---- ----\n\n    //#region private class vars\n\n    // How many times has the loaded instance connected to Socket.IO (detect if not a new load?)\n    connectedNum = 0\n    // event listener callbacks by property name\n    // #events = {}\n    // Socket.IO channel names\n    _ioChannels = { control: 'uiBuilderControl', client: 'uiBuilderClient', server: 'uiBuilder' }\n    /** setInterval holder for pings @type {function|undefined} */\n    #pingInterval\n    // onChange event callbacks\n    #propChangeCallbacks = {}\n    // onTopic event callbacks\n    #msgRecvdByTopicCallbacks = {}\n    // Is Vue available?\n    isVue = false\n    // What version? Set in startup if Vue is loaded. Won't always work\n    vueVersion = undefined\n    /** setInterval id holder for Socket.IO checkConnect\n     * @type {number|null}\n     */\n    #timerid = null\n    // Holds the reference ID for the internal msg change event handler so that it can be cancelled\n    #MsgHandler\n    // Placeholder for io.socket - can't make a # var until # fns allowed in all browsers\n    _socket\n    // Placeholder for an observer that watches the whole DOM for changes - can't make a # var until # fns allowed in all browsers\n    _htmlObserver\n    // Has showMsg been turned on?\n    #isShowMsg = false\n    // Has showStatus been turned on?\n    #isShowStatus = false\n    // Has an IntersectionObserver been created? If so, this will hold the reference to it\n    #intersectionObserver = undefined\n    // If true, URL hash changes send msg back to node-red. Controlled by watchUrlHash()\n    #sendUrlHash = false\n    // Externally accessible command functions (NB: Case must match) - remember to update _uibCommand for new commands\n    #extCommands = [\n        'get', 'set', 'htmlSend', 'showMsg', 'showStatus', 'uiGet', 'uiWatch', 'include', 'elementExists',\n        'getManagedVarList', 'getWatchedVars',\n    ]\n\n    /** @type {{[key: string]: string}} Managed uibuilder variables */\n    #managedVars = {}\n\n    // What status variables to show via showStatus()\n    #showStatus = {\n        online: { 'var': 'online', 'label': 'Online?', 'description': 'Is the browser online?', },\n        ioConnected: { 'var': 'ioConnected', 'label': 'Socket.IO connected?', 'description': 'Is Socket.IO connected?', },\n        connectedNum: { 'var': 'connectedNum', 'label': '# reconnections', 'description': 'How many times has Socket.IO had to reconnect since last page load?', },\n\n        clientId: { 'var': 'clientId', 'label': 'Client ID', 'description': 'Static client unique id set in Node-RED. Only changes when browser is restarted.', },\n        tabId: { 'var': 'tabId', 'label': 'Browser tab ID', 'description': 'Static unique id for the browser\\'s current tab', },\n        cookies: { 'var': 'cookies', 'label': 'Cookies', 'description': 'Cookies set in Node-RED', },\n        httpNodeRoot: { 'var': 'httpNodeRoot', 'label': 'httpNodeRoot', 'description': 'From Node-RED\\' settings.js, affects URL\\'s. May be wrong for pages in sub-folders', },\n        pageName: { 'var': 'pageName', 'label': 'Page name', 'description': 'Actual name of this page', },\n\n        ioNamespace: { 'var': 'ioNamespace', 'label': 'SIO namespace', 'description': 'Socket.IO namespace - unique to each uibuilder node instance', },\n        // ioPath: { 'var': 'ioPath', 'label': 'SIO path', 'description': '', }, // no longer needed in the modern client\n        socketError: { 'var': 'socketError', 'label': 'Socket error', 'description': 'If the Socket.IO connection has failed, says why', },\n\n        msgsSent: { 'var': 'msgsSent', 'label': '# msgs sent', 'description': 'How many standard messages have been sent to Node-RED?', },\n        msgsReceived: { 'var': 'msgsReceived', 'label': '# msgs received', 'description': 'How many standard messages have been received from Node-RED?', },\n        msgsSentCtrl: { 'var': 'msgsSentCtrl', 'label': '# control msgs sent', 'description': 'How many control messages have been sent to Node-RED?', },\n        msgsCtrlReceived: { 'var': 'msgsCtrlReceived', 'label': '# control msgs received', 'description': 'How many control messages have been received from Node-RED?', },\n        originator: { 'var': 'originator', 'label': 'Node Originator', 'description': 'If the last msg from Node-RED was from a `uib-sender` node, this will be its node id so that messasges can be returned to it', },\n        topic: { 'var': 'topic', 'label': 'Default topic', 'description': 'Optional default topic to be included in outgoing standard messages', },\n\n        started: { 'var': 'started', 'label': 'Has uibuilder client started?', 'description': 'Whether `uibuilder.start()` ran successfully. This should self-run and should not need to be run manually', },\n        version: { 'var': 'version', 'label': 'uibuilder client version', 'description': 'The version of the loaded uibuilder client library', },\n        serverTimeOffset: { 'var': 'serverTimeOffset', 'label': 'Server time offset (Hrs)', 'description': 'The number of hours difference between the Node-red server and the client', },\n    }\n\n    // Track ui observers (see uiWatch)\n    #uiObservers = {}\n\n    //#endregion\n\n    //#region public class vars\n\n    // TODO Move to proper getters\n    //#region ---- Externally read-only (via .get method) ---- //\n    // version - moved to _meta\n    /** Client ID set by uibuilder on connect */\n    clientId = ''\n    /** The collection of cookies provided by uibuilder */\n    cookies = {}\n    /** Copy of last control msg object received from sever */\n    ctrlMsg = {}\n    /** Is Socket.IO client connected to the server? */\n    ioConnected = false\n    // Is the browser tab containing this page visible or not?\n    isVisible = false\n    // Remember the last page (re)load/navigation type: navigate, reload, back_forward, prerender\n    lastNavType = ''\n    /** Last std msg received from Node-RED */\n    msg = {}\n    /** number of messages sent to server since page load */\n    msgsSent = 0\n    /** number of messages received from server since page load */\n    msgsReceived = 0\n    /** number of control messages sent to server since page load */\n    msgsSentCtrl = 0\n    /** number of control messages received from server since page load */\n    msgsCtrlReceived = 0\n    /** Is the client online or offline? */\n    online = navigator.onLine\n    /** last control msg object sent via uibuilder.send() @since v2.0.0-dev3 */\n    sentCtrlMsg = {}\n    /** last std msg object sent via uibuilder.send() */\n    sentMsg = {}\n    /** placeholder to track time offset from server, see fn socket.on(ioChannels.server ...) */\n    serverTimeOffset = null\n    /** placeholder for a socket error message */\n    socketError = null\n    // tab identifier from session storage\n    tabId = ''\n    // Actual name of current page (set in constructor)\n    pageName = null\n    // Is the DOMPurify library loaded? Updated in start()\n    purify = false\n    // Is the Markdown-IT library loaded? Updated in start()\n    markdown = false\n    // Current URL hash. Initial set is done from start->watchHashChanges via a set to make it watched\n    urlHash = location.hash\n    //#endregion ---- ---- ---- ---- //\n\n    // TODO Move to proper getters/setters\n    //#region ---- Externally Writable (via .set method, read via .get method) ---- //\n    /** Default originator node id - empty string by default\n     * @type {string}\n     */\n    originator = ''\n    /** Default topic - used by send if set and no topic provided\n     * @type {(string|undefined)}\n     */\n    topic = undefined\n    //#endregion ---- ---- ---- ---- //\n\n    //#region ---- These are unlikely to be needed externally: ----\n    autoSendReady = true\n    httpNodeRoot = '' // Node-RED setting (via cookie)\n    ioNamespace = ''\n    ioPath = ''\n    retryFactor = 1.5       // starting delay factor for subsequent reconnect attempts\n    retryMs = 2000          // starting retry ms period for manual socket reconnections workaround\n    storePrefix = 'uib_'    // Prefix for all uib-related localStorage\n    started = false\n    socketOptions = {\n        path: this.ioPath,\n        transports: ['polling', 'websocket'],\n        auth: {\n            clientVersion: version,\n            clientId: this.clientId,\n            pathName: window.location.pathname,\n            urlParams: Object.fromEntries(new URLSearchParams(location.search)),\n            pageName: undefined,\n            tabId: undefined,\n            lastNavType: undefined,\n        },\n        transportOptions: {\n            // Can only set headers when polling\n            polling: {\n                extraHeaders: {\n                    'x-clientid': `${Uib._meta.displayName}; ${Uib._meta.type}; ${Uib._meta.version}; ${this.clientId}`,\n                }\n            },\n        },\n    }\n    //#endregion -- not external --\n\n    //#endregion --- End of variables ---\n\n    //#region ------- Getters and Setters ------- //\n\n    // Change logging level dynamically (affects both console. and print.)\n    set logLevel(level) { logLevel = level; console.log('%c\u2757 info%c [logLevel]', `${LOG_STYLES.level} ${LOG_STYLES.info.css}`, `${LOG_STYLES.head} ${LOG_STYLES.info.txtCss}`, `Set to ${level} (${LOG_STYLES.names[level]})`) /* changeLogLevel(level)*/ }\n    get logLevel() { return logLevel }\n\n    get meta() { return Uib._meta }\n\n    /** Function to set uibuilder properties to a new value - works on any property except _* or #*\n     * Also triggers any event listeners.\n     * Example: this.set('msg', {topic:'uibuilder', payload:42});\n     * @param {string} prop Any uibuilder property who's name does not start with a _ or #\n     * @param {*} val The set value of the property or a string declaring that a protected property cannot be changed\n     * @param {boolean} [store] If true, the variable is also saved to the browser localStorage if possible\n     * @param {boolean} [autoload] If true & store is true, on load, uib will try to restore the value from the store automatically\n     * @returns {*} Input value\n     */\n    set(prop, val, store = false, autoload = false) {\n        // Check for excluded properties - we don't want people to set these\n        // if (this.#excludedSet.indexOf(prop) !== -1) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:set', `Cannot use set() on protected property \"${prop}\"`)()\n            return `Cannot use set() on protected property \"${prop}\"`\n        }\n\n        // We must add the var to the uibuilder object\n        this[prop] = val\n\n        // Keep track of all managed variables\n        this.#managedVars[prop] = prop\n\n        // If requested, save to store\n        if (store === true) this.setStore(prop, val, autoload)\n\n        log('trace', 'Uib:set', `prop set - prop: ${prop}, val: `, val, ` store: ${store}, autoload: ${autoload}`)()\n\n        // Trigger this prop's event callbacks (listeners which are set by this.onChange)\n        // this.emit(prop, val)\n\n        // trigger an event on the prop name, pass both the name and value to the event details\n        this._dispatchCustomEvent('uibuilder:propertyChanged', { 'prop': prop, 'value': val, 'store': store, 'autoload': autoload })\n\n        return val\n    }\n\n    /** Function to get the value of a uibuilder property\n     * Example: uibuilder.get('msg')\n     * @param {string} prop The name of the property to get as long as it does not start with a _ or #\n     * @returns {*|undefined} The current value of the property\n     */\n    get(prop) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:get', `Cannot use get() on protected property \"${prop}\"`)()\n            return\n        }\n        if (prop === 'version') return Uib._meta.version\n        if (prop === 'msgsCtrl') return this.msgsCtrlReceived\n        if (prop === 'reconnections') return this.connectedNum\n        if (this[prop] === undefined) {\n            log('warn', 'Uib:get', `get() - property \"${prop}\" is undefined`)()\n        }\n        return this[prop]\n    }\n\n    /** Write to localStorage if possible. console error output if can't write\n     * Also uses this.storePrefix\n     * @example\n     *   uibuilder.setStore('fred', 42)\n     *   console.log(uibuilder.getStore('fred'))\n     * @param {string} id localStorage var name to be used (prefixed with 'uib_')\n     * @param {*} value value to write to localstore\n     * @param {boolean} [autoload] If true, on load, uib will try to restore the value from the store\n     * @returns {boolean} True if succeeded else false\n     */\n    setStore(id, value, autoload = false) {\n        let autoVars = {}\n        if (autoload === true) {\n            try {\n                autoVars = this.getStore('_uibAutoloadVars') || {}\n            } catch (e) {}\n        }\n        if (typeof value === 'object') {\n            try {\n                value = JSON.stringify(value)\n            } catch (e) {\n                log('error', 'Uib:setStore', 'Cannot stringify object, not storing. ', e)()\n                return false\n            }\n        }\n        try {\n            localStorage.setItem(this.storePrefix + id, value)\n            if (autoload) {\n                autoVars[id] = id\n                try {\n                    localStorage.setItem(this.storePrefix + '_uibAutoloadVars', JSON.stringify(autoVars))\n                } catch (e) {\n                    log('error', 'Uib:setStore', 'Cannot save autoload list. ', e)()\n                }\n            }\n            this._dispatchCustomEvent('uibuilder:propertyStored', { 'prop': id, 'value': value, 'autoload': autoload })\n            return true\n        } catch (e) {\n            log('error', 'Uib:setStore', 'Cannot write to localStorage. ', e)()\n            return false\n        }\n    } // --- end of setStore --- //\n\n    /** Attempt to get and re-hydrate a key value from localStorage\n     * Note that all uib storage is automatically prefixed using this.storePrefix\n     * @param {*} id The key of the value to attempt to retrieve\n     * @returns {*|null|undefined} The re-hydrated value of the key or null if key not found, undefined on error\n     */\n    getStore(id) {\n        try {\n            // @ts-ignore\n            return JSON.parse(localStorage.getItem(this.storePrefix + id))\n        } catch (e) { }\n        try {\n            return localStorage.getItem(this.storePrefix + id)\n        } catch (e) {\n            return undefined\n        }\n    }\n\n    /** Remove a given id from the uib keys in localStorage\n     * @param {*} id The key to remove\n     */\n    removeStore(id) {\n        try {\n            localStorage.removeItem(this.storePrefix + id)\n        } catch (e) { }\n    }\n\n    /** Returns a list of uibuilder properties (variables) that can be watched with onChange\n     * @returns {{[key: string]: string}} List of uibuilder managed variables\n     */\n    getManagedVarList() {\n        return this.#managedVars\n    }\n\n    getWatchedVars() {\n        return Object.keys(this.#propChangeCallbacks)\n    }\n\n    //#endregion ------- -------- ------- //\n\n    //#region ------- Our own event handling system ---------- //\n\n    // TODO Add option to send event details back to Node-RED as uib ctrl msg\n    /** Standard fn to create a custom event with details & dispatch it\n     * @param {string} title The event name\n     * @param {*} details Any details to pass to event output\n     */\n    _dispatchCustomEvent(title, details) {\n        const event = new CustomEvent(title, { detail: details })\n        document.dispatchEvent(event)\n    }\n\n    // See the this.#propChangeCallbacks & msgRecvdByTopicCallbacks private vars\n\n    /** Register on-change event listeners for uibuilder tracked properties\n     * Make it possible to register a function that will be run when the property changes.\n     * Note that you can create listeners for non-existant properties\n     * @example: uibuilder.onChange('msg', (msg) => { console.log('uibuilder.msg changed! It is now: ', msg) })\n     *\n     * @param {string} prop The property of uibuilder that we want to monitor\n     * @param {Function} callback The function that will run when the property changes, parameter is the new value of the property after change\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelChange if you need to remove a listener\n     */\n    onChange(prop, callback) {\n        // Note: Property does not have to exist yet\n\n        // console.debug(`[Uib:onchange] pushing new callback (event listener) for property: ${prop}`)\n\n        // Create a new array or add to the array of callback functions for the property in the events object\n        // if (this.#events[prop]) {\n        //     this.#events[prop].push(callback)\n        // } else {\n        //     this.#events[prop] = [callback]\n        // }\n\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#propChangeCallbacks[prop]) this.#propChangeCallbacks[prop] = { _nextRef: 1 }\n        else this.#propChangeCallbacks[prop]._nextRef++\n\n        const nextCbRef = this.#propChangeCallbacks[prop]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const propChangeCallback = this.#propChangeCallbacks[prop][nextCbRef] = function propChangeCallback(e) {\n            // If the prop name matches the 1st arg in the onChange fn:\n            if (prop === e.detail.prop) {\n                const value = e.detail.value\n                // console.warn('[Uib:onChange:evt] uibuilder:propertyChanged. ', e.detail)\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(value, value)\n            }\n        }\n\n        document.addEventListener('uibuilder:propertyChanged', propChangeCallback)\n\n        return nextCbRef\n    } // ---- End of onChange() ---- //\n\n    cancelChange(prop, cbRef) {\n        document.removeEventListener('uibuilder:propertyChanged', this.#propChangeCallbacks[prop][cbRef])\n        delete this.#propChangeCallbacks[prop][cbRef]\n        // this.#propChangeCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Register a change callback for a specific msg.topic\n     * Similar to onChange but more convenient if needing to differentiate by msg.topic.\n     * @example: let otRef = uibuilder.onTopic('mytopic', function(){ console.log('Received a msg with msg.topic=`mytopic`. msg: ', this) })\n     * To cancel a change listener: uibuilder.cancelTopic('mytopic', otRef)\n     *\n     * @param {string} topic The msg.topic we want to listen for\n     * @param {Function} callback The function that will run when an appropriate msg is received. `this` inside the callback as well as the cb's single argument is the received msg.\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelTopic if you need to remove a listener\n     */\n    onTopic(topic, callback) {\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#msgRecvdByTopicCallbacks[topic]) this.#msgRecvdByTopicCallbacks[topic] = { _nextRef: 1 }\n        else this.#msgRecvdByTopicCallbacks[topic]._nextRef++\n\n        const nextCbRef = this.#msgRecvdByTopicCallbacks[topic]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const msgRecvdEvtCallback = this.#msgRecvdByTopicCallbacks[topic][nextCbRef] = function msgRecvdEvtCallback(e) {\n            const msg = e.detail\n            // console.log('[Uib:onTopic:evt] uibuilder:stdMsgReceived where topic matches. ', e.detail)\n            if (msg.topic === topic) {\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(msg, msg)\n            }\n        }\n\n        document.addEventListener('uibuilder:stdMsgReceived', msgRecvdEvtCallback)\n\n        return nextCbRef\n    }\n\n    cancelTopic(topic, cbRef) {\n        document.removeEventListener('uibuilder:stdMsgReceived', this.#msgRecvdByTopicCallbacks[topic][cbRef])\n        delete this.#msgRecvdByTopicCallbacks[topic][cbRef]\n        // this.#msgRecvdCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Trigger event listener for a given property\n     * Called when uibuilder.set is used\n     *\n     * @param {*} prop The property for which to run the callback functions\n     * arguments: Additional arguments contain the value to pass to the event callback (e.g. newValue)\n     */\n    // emit(prop) {\n    //     var evt = this.#events[prop]\n    //     if (!evt) {\n    //         return\n    //     }\n    //     var args = Array.prototype.slice.call(arguments, 1)\n    //     for (var i = 0; i < evt.length; i++) {\n    //         evt[i].apply(this, args)\n    //     }\n    //     log('trace', 'Uib:emit', `${evt.length} listeners run for prop ${prop} `)()\n    // }\n\n    /** Forcibly removes all event listeners from the events array\n     * Use if you need to re-initialise the environment\n     */\n    // clearEventListeners() {\n    //     this.#events = []\n    // } // ---- End of clearEventListeners() ---- //\n\n    /** Clear a single property event listeners\n     * @param {string} prop The property of uibuilder for which we want to clear the event listener\n     */\n    // clearListener(prop) {\n    //     if (this.#events[prop]) delete this.#events[prop]\n    // }\n\n    //#endregion ---------- End of event handling system ---------- //\n\n    //#region ------- General Utility Functions -------- //\n\n    /** Check supplied msg from server for a timestamp - if received, work out & store difference to browser time\n     * @param {object} receivedMsg A message object recieved from Node-RED\n     * @returns {void} Updates self.serverTimeOffset if different to previous value\n     */\n    _checkTimestamp(receivedMsg) {\n        if (Object.prototype.hasOwnProperty.call(receivedMsg, 'serverTimestamp')) {\n            const serverTimestamp = new Date(receivedMsg.serverTimestamp)\n            // @ts-ignore\n            const offset = Math.round(((new Date()) - serverTimestamp) / 3600000) // in ms / 3.6m to get hours\n            if (offset !== this.serverTimeOffset) {\n                log('trace', `Uib:checkTimestamp:${this._ioChannels.server} (server)`, `Offset changed to: ${offset} from: ${this.serverTimeOffset}`)()\n                this.set('serverTimeOffset', offset)\n            }\n        }\n    }\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {*} Selected HTML element or null\n     */\n    $(cssSelector) {\n        /** @type {*} Some kind of HTML element */\n        let el = document.querySelector(cssSelector)\n\n        if (!el) {\n            log(1, 'Uib:$', `No element found for CSS selector ${cssSelector}`)()\n            return null\n        }\n\n        if ( el.nodeName === 'TEMPLATE' ) {\n            el = el.content.firstElementChild\n            if (!el) {\n                log(0, 'Uib:$', `Template selected for CSS selector ${cssSelector} but it is empty`)()\n                return null\n            }\n        }\n\n        return el\n    }\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {*} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {Array} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$(cssSelector) {\n        return Array.from(document.querySelectorAll(cssSelector))\n    }\n\n    /** Set the default originator. Set to '' to ignore. Used with uib-sender.\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    setOriginator(originator = '') {\n        this.set('originator', originator)\n    } // ---- End of setOriginator ---- //\n\n    /** HTTP Ping/Keep-alive - makes a call back to uibuilder's ExpressJS server and receives a 204 response\n     * Can be used to keep sessions alive.\n     * @example\n     *   uibuilder.setPing(2000) // repeat every 2 sec. Re-issue with ping(0) to turn off repeat.\n     *   uibuilder.onChange('ping', function(data) {\n     *      console.log('pinger', data)\n     *   })\n     * @param {number} ms Repeat interval in ms\n     */\n    setPing(ms = 0) {\n        const oReq = new XMLHttpRequest()\n        oReq.addEventListener('load', () => {\n            const headers = (oReq.getAllResponseHeaders()).split('\\r\\n')\n            const elapsedTime = Number(new Date()) - Number((oReq.responseURL.split('='))[1])\n            this.set('ping', {\n                success: !!((oReq.status === 201) || (oReq.status === 204)), // true if one of the listed codes else false\n                status: oReq.status,\n                headers: headers,\n                url: oReq.responseURL,\n                elapsedTime: elapsedTime,\n            })\n        })\n\n        if (this.#pingInterval) {\n            clearInterval(this.#pingInterval)\n            this.#pingInterval = undefined\n        }\n\n        oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n        oReq.send()\n\n        if (ms > 0) {\n            this.#pingInterval = setInterval(() => {\n                oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n                oReq.send()\n            }, ms)\n        }\n    } // ---- End of ping ---- //\n\n    log() {\n        log(...arguments)()\n    }\n\n    /** Convert JSON to Syntax Highlighted HTML\n     * @param {object} json A JSON/JavaScript Object\n     * @returns {html} Object reformatted as highlighted HTML\n     */\n    syntaxHighlight(json) {\n        return syntaxHighlight(json)\n    } // --- End of syntaxHighlight --- //\n\n    /** Copies a uibuilder variable to the browser clipboard\n     * @param {string} varToCopy The name of the uibuilder variable to copy to the clipboard\n     */\n    copyToClipboard(varToCopy) {\n        let data = ''\n        try {\n            console.log(this.get(varToCopy), JSON.stringify(this.get(varToCopy)))\n            data = JSON.stringify(this.get(varToCopy))\n        } catch (e) {\n            log('error', 'copyToClipboard', `Could not copy \"${varToCopy}\" to clipboard.`, e.message)()\n        }\n        navigator.clipboard.writeText(data)\n    } // --- End of copyToClipboard --- //\n\n    /** Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.\n     * Requires IntersectionObserver (available to all mainstream browsers from early 2019)\n     * Automatically sends a msg back to Node-RED.\n     * Requires the element to already exist.\n     * @param {string} cssSelector Required. CSS Selector to examine for visibility\n     * @param {boolean} stop Optional. Default=false. If TRUE, stop the observer for this cssSelector\n     * @param {number} threshold Optional. Default=0.1. Between 0 and 1, the % visibility before trigger\n     */\n    elementIsVisible(cssSelector, stop = false, threshold = 0.1) {\n        if (!IntersectionObserver) return\n\n        // TODO Return a promise? - make return message optional?\n        // https://blog.bitsrc.io/angular-maximizing-performance-with-the-intersection-observer-api-23d81312f178#:~:text=Let%E2%80%99s%20define%20a%20function%20named%20isVisible%20and%20returns,resolve%20%28entry.isIntersecting%29%3B%20observer.disconnect%20%28%29%3B%20%7D%29%3B%20observer.observe%20%28element%29%3B%20%7D%29%3B\n\n        if (!this.#intersectionObserver) {\n            this.#intersectionObserver = new IntersectionObserver( (ioEntries) => {\n                const entries = []\n                // Stupid DOM API's, we have to explicitly loop through the data to be able to use it\n                ioEntries.forEach((entry) => {\n                    // Markup the element (data-isvisible)\n                    entry.target.dataset.isvisible = entry.isIntersecting\n                    // Each entry describes an intersection change for one observed\n                    entries.push({\n                        isIntersecting: entry.isIntersecting,\n                    })\n                })\n\n                // console.log('IntersectionObserver: Entries ', ioEntries, entries)\n                this.send({\n                    payload: entries[0].isIntersecting,\n                    isVisible: entries[0].isIntersecting,\n                    cssSelector,\n                    entries: entries,\n                })\n\n                log('info', 'uib:elementIsVisible', `Element \"${cssSelector}\" is now ${entries[0].isIntersecting ? 'more than 10%' : 'NOT (<10%)'} visible`)()\n            }, { threshold: threshold })\n        }\n\n        const el = document.querySelector(cssSelector)\n\n        if (el === null) {\n            log('error', 'uib:elementIsVisible', `Element \"${cssSelector}\" not found`)()\n            return\n        }\n\n        if (stop === true) {\n            this.#intersectionObserver.unobserve(el)\n            return\n        }\n\n        this.#intersectionObserver.observe(el)\n    } // --- End of elementIsVisible --- //\n\n    /** Does the chosen CSS Selector currently exist?\n     * Automatically sends a msg back to Node-RED unless turned off.\n     * @param {string} cssSelector Required. CSS Selector to examine for visibility\n     * @param {boolean} [msg] Optional, default=true. If true also sends a message back to Node-RED\n     * @returns {boolean} True if the element exists\n     */\n    elementExists(cssSelector, msg = true) {\n        const el = document.querySelector(cssSelector)\n\n        let exists = false\n        if (el !== null) exists = true\n\n        if (msg === true) {\n            this.send({\n                payload: exists,\n                info: `Element \"${cssSelector}\" ${exists ? 'exists' : 'does not exist'}`\n            })\n        }\n\n        return exists\n    } // --- End of elementExists --- //\n\n    /** Only keep the URL Hash & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return '#' + url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Set up an event listener to watch for hash changes\n     * and set the watchable urlHash variable\n     */\n    _watchHashChanges() {\n        this.set('urlHash', location.hash)\n        window.addEventListener('hashchange', (event) => {\n            this.set('urlHash', location.hash)\n            if (this.#sendUrlHash === true) {\n                this.send({ topic: 'hashChange', payload: location.hash, newHash: this.keepHashFromUrl(event.newURL), oldHash: this.keepHashFromUrl(event.oldURL) })\n            }\n        })\n    }\n\n    /** Returns true/false or a default value for truthy/falsy and other values\n     * @param {string|number|boolean|*} val The value to test\n     * @param {any} deflt Default value to use if the value is not truthy/falsy\n     * @returns {boolean|any} The truth! Or the default\n     */\n    truthy(val, deflt) {\n        let ret\n        if (['on', 'On', 'ON', 'true', 'True', 'TRUE', '1', true, 1].includes(val)) ret = true\n        else if (['off', 'Off', 'OFF', 'false', 'False', 'FALSE', '0', false, 0].includes(val)) ret = false\n        else ret = deflt\n        return ret\n    }\n\n    /** Turn on/off/toggle sending URL hash changes back to Node-RED\n     * @param {string|number|boolean|undefined} [toggle] Optional on/off/etc\n     * @returns {boolean} True if we will send a msg to Node-RED on a hash change\n     */\n    watchUrlHash(toggle) {\n        this.#sendUrlHash = this.truthy(toggle, this.#sendUrlHash !== true)\n        return this.#sendUrlHash\n    }\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- UI handlers --------- //\n\n    //#region -- Direct to _ui --\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        _ui.ui(json)\n    }\n\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        _ui.replaceSlot(el, component)\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        _ui.replaceSlotMarkdown(el, component)\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        return _ui.convertMarkdown(mdText)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        return _ui.sanitiseHTML(html)\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        _ui.loadScriptSrc(url)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        _ui.loadStyleSrc(url)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        _ui.loadScriptTxt(textFn)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        _ui.loadStyleTxt(textFn)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) {\n        _ui.showDialog(type, ui, msg)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        _ui.loadui(url)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        return _ui.uiGet(cssSelector, propName)\n    }\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     */\n    async include(url, uiOptions) {\n        _ui.include(url, uiOptions)\n    }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} component Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, component) {\n        _ui.uiEnhanceElement(el, component)\n    }\n\n    //#endregion -- direct to _ui --\n\n    /** * Show/hide a display card on the end of the visible HTML that will dynamically display the last incoming msg from Node-RED\n     * The card has the id `uib_last_msg`. Updates are done from a listener set up in the start function.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showMsg(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowMsg\n        this.#isShowMsg = showHide\n        let slot = 'Waiting for a message from Node-RED'\n\n        if (this.msg && Object.keys(this.msg).length > 0) {\n            slot = this.syntaxHighlight(this.msg)\n        }\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_last_msg_wrap',\n                ],\n            })\n        } else {\n            _ui._uiReplace({\n                components: [\n                    {\n                        type: 'div',\n                        id: 'uib_last_msg_wrap',\n                        parent: parent,\n                        attributes: {\n                            title: 'Last message from Node-RED',\n                        },\n                        components: [\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.copyToClipboard(\"msg\")',\n                                    class: 'compact',\n                                    style: 'right:3em;',\n                                },\n                                slot: '\uD83D\uDCCB',\n                            },\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.showMsg()',\n                                    class: 'compact',\n                                    style: 'right:.5em;',\n                                },\n                                slot: '\u26D4',\n                            },\n                            {\n                                type: 'pre',\n                                id: 'uib_last_msg',\n                                // parent: 'uib_last_msg_wrap',\n                                attributes: {\n                                    class: 'syntax-highlight',\n                                },\n                                slot: slot,\n                            },\n                        ],\n                    },\n                ],\n            })\n        }\n\n        return showHide\n    }\n\n    /** Show a browser notification if possible.\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * @example uibuilder.notify( 'My simple message to the user' )\n     * @example uibuilder.notify( {topic: 'My Title', payload: 'My simple message to the user'} )\n     * @example uibuilder.notify( {title: 'My Title', body: 'My simple message to the user'} )\n     * @example // If config.return = true, a promise is returned.\n     * // The resolved promise is only returned if the notification is clicked by the user.\n     * // Can be used to send the response back to Node-RED\n     * uibuilder.notify(notifyConfig).then( res => uibuilder.eventSend(res) )\n     * @ref https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config data or simple message string\n     * @returns {Promise<Event>|null} A promise that resolves to the click event or null\n     */\n    notify(config) {\n        if (config.return) return _ui.notification(config)\n\n        _ui.notification(config)\n            .then( res => { // eslint-disable-line promise/always-return\n                log('info', 'Uib:notification', 'Notification completed event', res)()\n                // if (config.return) return res\n            })\n            .catch( err => {\n                log('error', 'Uib:notification', 'Notification error event', err)()\n            })\n        return null\n    }\n\n    /** Show/hide a display card on the end of the visible HTML that will dynamically display the current status of the uibuilder client\n     * The card has the id `uib_status`.\n     * The display is updated by an event listener created in the class constructor.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showStatus(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowStatus\n        this.#isShowStatus = showHide\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_status',\n                ],\n            })\n            return showHide\n        }\n\n        const root = {\n            components: [\n                {\n                    type: 'div',\n                    id: 'uib_status',\n                    parent: parent,\n                    attributes: {\n                        title: 'Current status of the uibuilder client',\n                        class: 'text-smaller',\n                    },\n                    components: [\n                        {\n                            'type': 'table',\n                            'components': [\n                                {\n                                    'type': 'tbody',\n                                    'components': []\n                                }\n                            ]\n                        }\n                    ]\n                }\n            ]\n        }\n        const details = root.components[0].components[0].components[0].components\n\n        Object.values(this.#showStatus).forEach( entry => {\n            details.push({\n                'type': 'tr',\n                'attributes': {\n                    title: entry.description,\n                },\n                'components': [\n                    {\n                        'type': 'th',\n                        'slot': entry.label,\n                    },\n                    {\n                        'type': 'td',\n                        'attributes': {\n                            'data-varType': entry.var,\n                        },\n                        'slot': entry.var === 'version' ? Uib._meta.version : JSON.stringify(this[entry.var]),\n                    }\n                ],\n            })\n        })\n\n        _ui._uiReplace(root)\n\n        return showHide\n    }\n\n    /** Use the Mutation Observer browser API to watch for changes to a single element on the page.\n     * OMG! It is sooo hard to turn the data into something that successfully serialises so it can be sent back to Node-RED!\n     * NB: Each cssSelector creates a unique watcher. Sending the same selector overwrites the previous one.\n     * @param {string} cssSelector A CSS Selector that selects the element to watch for changes\n     * @param {boolean|\"toggle\"} [startStop] true=start watching the DOM, false=stop. Default='toggle'\n     * @param {boolean} [send] true=Send changes to Node-RED, false=Don't send. Default=true\n     * @param {boolean} [showLog] true=Output changes to log, false=stop. Default=true. Log level is 2 (Info)\n     * @returns {boolean} True if the watch is on, false otherwise\n     */\n    uiWatch(cssSelector, startStop = 'toggle', send = true, showLog = true) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.querySelector(cssSelector)\n        if (!targetNode) {\n            log('warn', 'uibuilder.module.js:uiWatch', `CSS Selector '${cssSelector}' not found.`)()\n            return false\n        }\n\n        if (startStop === 'toggle' || startStop === undefined || startStop === null) {\n            if (this.#uiObservers[cssSelector]) startStop = false\n            else startStop = true\n        }\n\n        // Need a ref to the Uib this\n        const that = this\n\n        if (startStop === true) {\n            // Create an observer instance\n            this.#uiObservers[cssSelector] = new MutationObserver( function( mutationList /* , observer */ ) {\n                const out = []\n\n                mutationList.forEach( mu => {\n                    // console.log({ mu })\n                    const oMu = {\n                        type: mu.type,\n                        oldValue: mu.oldValue !== null ? mu.oldValue : undefined,\n                    }\n\n                    if (mu.addedNodes.length > 0) {\n                        oMu.addedNodes = []\n                        mu.addedNodes.forEach( (an, i) => {\n                            oMu.addedNodes.push(_ui.nodeGet(mu.addedNodes[i]))\n                        })\n                    }\n\n                    if (mu.removedNodes.length > 0) {\n                        oMu.removedNodes = []\n                        mu.removedNodes.forEach( (an, i) => {\n                            oMu.removedNodes.push(_ui.nodeGet(mu.removedNodes[i]))\n                        })\n                    }\n\n                    if ( mu.type === 'attributes' ) {\n                        oMu.attributeName = mu.attributeName\n                        // @ts-ignore\n                        oMu.newValue = mu.target.attributes[mu.attributeName].value\n                    }\n\n                    out.push(oMu)\n                })\n\n                // Custom event\n                that._dispatchCustomEvent('uibuilder:domChange', out)\n                // Send a msg back to node-red\n                if (send === true) {\n                    that.send({\n                        _ui: {\n                            cssSelector: cssSelector,\n                            uiChanges: out\n                        },\n                        topic: that.topic || `DOM Changes for '${cssSelector}'`,\n                    })\n                }\n                // Log to info\n                if (showLog === true) {\n                    log('info', 'uibuilder.module.js:uiWatch', `DOM Changes for '${cssSelector}'`, { uiChanges: out }, { mutationList })()\n                }\n            } )\n\n            // Start observing the target node for configured mutations\n            this.#uiObservers[cssSelector].observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:uiWatch', `Started Watching DOM changes for '${cssSelector}'`)()\n        } else {\n            this.#uiObservers[cssSelector].disconnect()\n            delete this.#uiObservers[cssSelector]\n            log('trace', 'uibuilder.module.js:uiWatch', `Stopped Watching DOM changes for '${cssSelector}'`)()\n        }\n\n        return startStop\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- HTML cache and DOM watch --------- //\n\n    /** Clear the saved DOM from localStorage */\n    clearHtmlCache() {\n        this.removeStore('htmlCache')\n        log('trace', 'uibuilder.module.js:clearHtmlCache', 'HTML cache cleared')()\n    }\n\n    /** Restore the complete DOM (the whole web page) from browser localStorage if available */\n    restoreHtmlFromCache() {\n        // Is the html cached? If so, restore it\n        const htmlCache = this.getStore('htmlCache')\n        if (htmlCache) {\n            const targetNode = document.getElementsByTagName('html')[0]\n            // Restore the entire HTML\n            targetNode.innerHTML = htmlCache\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'Restored HTML from cache')()\n        } else {\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'No cache to restore')()\n        }\n    }\n\n    /** Save the current DOM state to browser localStorage.\n     * localStorage is persistent and so can be recovered even after a browser restart.\n     */\n    saveHtmlCache() {\n        // Save the updated entire HTML in localStorage\n        this.setStore('htmlCache', document.documentElement.innerHTML)\n    }\n\n    /** Use the Mutation Observer browser API to watch for and save changes to the HTML\n     * Once the observer is created, it will be reused.\n     * Sending true or undefined will turn on the observer, false turns it off.\n     * saveHtmlCache is called whenever anything changes in the dom. This allows\n     * users to call restoreHtmlFromCache() on page load if desired to completely reload\n     * to the last saved state.\n     * @param {boolean} startStop true=start watching the DOM, false=stop\n     */\n    watchDom(startStop) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.documentElement\n\n        // Need a ref to the Uib this\n        const that = this\n\n        // Create an observer instance\n        if (!this._htmlObserver) {\n            this._htmlObserver = new MutationObserver( function(/* mutationList, observer */) {\n                // We don't need to know the details - so kill off any outstanding mutation records\n                this.takeRecords()\n                // Save the updated entire HTML in localStorage\n                that.saveHtmlCache()\n            } )\n        }\n\n        if (startStop === true || startStop === undefined) {\n            // Start observing the target node for configured mutations\n            this._htmlObserver.observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:watchDom', 'Started Watching and saving DOM changes')()\n        } else {\n            this._htmlObserver.disconnect()\n            log('trace', 'uibuilder.module.js:watchDom', 'Stopped Watching and saving DOM changes')()\n        }\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- Message Handling (To/From Node-RED) -------- //\n\n    /** Internal send fn. Send a standard or control msg back to Node-RED via Socket.IO\n     * NR will generally expect the msg to contain a payload topic\n     * @param {object} msgToSend The msg object to send.\n     * @param {string} [channel=uiBuilderClient] The Socket.IO channel to use, must be in self.ioChannels or it will be ignored\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    _send(msgToSend, channel, originator = '') {\n        if (channel === null || channel === undefined) channel = this._ioChannels.client\n\n        // Make sure msgToSend is an object\n        if (channel === this._ioChannels.client) {\n            msgToSend = makeMeAnObject(msgToSend, 'payload')\n        } else if (channel === this._ioChannels.control) {\n            msgToSend = makeMeAnObject(msgToSend, 'uibuilderCtrl')\n            if (!Object.prototype.hasOwnProperty.call(msgToSend, 'uibuilderCtrl')) {\n                msgToSend.uibuilderCtrl = 'manual send'\n            }\n            // help remember where this came from as ctrl msgs can come from server or client\n            msgToSend.from = 'client'\n        }\n\n        /** since 2020-01-02 Added _socketId which should be the same as the _socketId on the server */\n        msgToSend._socketId = this._socket.id\n\n        //#region ---- Update socket.io metadata ---- //\n        // Session tab id\n        this.socketOptions.auth.tabId = this.tabId\n        // How was the page last loaded?\n        this.socketOptions.auth.lastNavType = this.lastNavType\n        // How many times has the client (re)connected since page load\n        this.socketOptions.auth.connectedNum = this.connectedNum\n        //#endregion ---- ---- ---- //\n\n        // Add the originator metadata if required\n        if (originator === '' && this.originator !== '') originator = this.originator\n        if (originator !== '') Object.assign(msgToSend, { '_uib': { 'originator': originator } })\n\n        // If the msg does not have a topic - see if we want to add one\n        if ( !Object.prototype.hasOwnProperty.call(msgToSend, 'topic') ) {\n            // From the default (`uibuilder.set('topic', 'some topic')`)\n            if (this.topic !== undefined && this.topic !== '') msgToSend.topic = this.topic\n            else {\n                // Did the last inbound msg have a topic?\n                if ( Object.prototype.hasOwnProperty.call(this, 'msg') && Object.prototype.hasOwnProperty.call(this.msg, 'topic') ) {\n                    msgToSend.topic = this.msg.topic\n                }\n            }\n        }\n\n        // If a standard send & _ui property exists, make sure to add _ui.from = 'client'\n        if (msgToSend._ui) msgToSend._ui.from = 'client'\n\n        // Track how many messages have been sent & last msg sent\n        let numMsgs\n        if (channel === this._ioChannels.client) {\n            this.set('sentMsg', msgToSend)\n            numMsgs = this.set('msgsSent', ++this.msgsSent)\n        } else if (channel === this._ioChannels.control) {\n            this.set('sentCtrlMsg', msgToSend)\n            numMsgs = this.set('msgsSentCtrl', ++this.msgsSentCtrl)\n        }\n        log('trace', 'Uib:_send', ` Channel '${channel}'. Sending msg #${numMsgs}`, msgToSend)()\n\n        this._socket.emit(channel, msgToSend)\n    } // --- End of Send Msg Fn --- //\n\n    /** Send a standard message to NR\n     * @example uibuilder.send({payload:'Hello'})\n     * @param {object} msg Message to send\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    send(msg, originator = '') {\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Send a control msg to NR\n     * @param {object} msg Message to send\n     */\n    sendCtrl(msg) {\n        this._send(msg, this._ioChannels.control)\n    }\n\n    /** Easily send a msg back to Node-RED on a DOM event\n     * @example In plain HTML/JavaScript\n     *    `<button id=\"button1\" name=\"button 1\" data-fred=\"jim\"></button>`\n     *    $('#button1').onclick = (evt) => {\n     *      uibuilder.eventSend(evt)\n     *    }\n     * @example\n     * In VueJS: `<b-button id=\"myButton1\" @click=\"doEvent\" data-something=\"hello\"></b-button>`\n     * In VueJS methods: `doEvent: uibuilder.eventSend,`\n     *\n     * All `data-` attributes will be passed back to Node-RED,\n     *    use them instead of arguments in the click function.\n     *    All target._ui custom properties are also passed back to Node-RED.\n     *\n     * @param {MouseEvent|any} domevent DOM Event object\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    eventSend(domevent, originator = '') { // eslint-disable-line sonarjs/cognitive-complexity\n        // @ts-ignore Handle case where vue messes up `this`\n        if ( this.$attrs ) {\n            log('error', 'Uib:eventSend', '`this` has been usurped by VueJS. Make sure that you wrap the call in a function: `doEvent: function (event) { uibuilder.eventSend(event) },`' )()\n            return\n        }\n        if (!domevent && !event) {\n            log('warn', 'Uib:eventSend', 'Neither the domevent nor the hidden event properties are set. You probably called this function directly rather than applying to an on click event.' )()\n            return\n        }\n        // Handle no argument, e.g. <button onClick=\"uibuilder.eventSend()\"> - event is a hidden variable when fn used in addEventListener\n        if (!domevent || !domevent.constructor) domevent = event\n\n        // The argument must be a DOM event\n        if ((!domevent.constructor.name.endsWith('Event')) || (!domevent.currentTarget)) {\n            log('warn', 'Uib:eventSend', `ARGUMENT NOT A DOM EVENT - use data attributes not function arguments to pass data. Arg Type: ${domevent.constructor.name}`, domevent)()\n            return\n        }\n\n        // Prevent default event action\n        domevent.preventDefault()\n\n        // The target element\n        const target = domevent.currentTarget\n\n        // Get target properties - only shows custom props not element default ones\n        const props = {}\n        Object.keys(target).forEach( key => {\n            if (key.startsWith('_')) return // Exclude private\n            props[key] = target[key]\n        })\n\n        // Attempt to get target attributs - can fail for certain target types\n        const ignoreAttribs = ['class', 'id', 'name']\n        let attribs\n        try {\n            attribs = Object.assign({},\n                ...Array.from(target.attributes,\n                    ( { name, value } ) => {\n                        if ( !ignoreAttribs.includes(name) ) {\n                            return ({ [name]: value })\n                        }\n                        return undefined\n                    }\n                )\n            )\n        } catch (e) {}\n\n        // If target embedded in a form, include the form data\n        let form\n        const frmVals = []\n        if ( target.form ) {\n            form = {}\n            form.valid = target.form.checkValidity()\n            Object.values(target.form).forEach( (frmEl, i) => {\n                const id = frmEl.id !== '' ? frmEl.id : (frmEl.name !== '' ? frmEl.name : `${i}-${frmEl.type}`)\n\n                // We must have both an element id (we may have forced one above) AND\n                // the element type MUST be not undefined - to allow for the extra properties added by frameworks such as Svelte\n                if (id !== '' && frmEl.type) {\n                    // Stupid HTML doesn't use value attrib for checkboxes. So override if value is set to default\n                    if ('checked' in frmEl && frmEl.value === 'on') frmEl.value = frmEl.checked.toString()\n\n                    frmVals.push( { key: id, val: frmEl.value } ) // simplified for addition to msg.payload\n\n                    form[id] = {\n                        'id': frmEl.id,\n                        'name': frmEl.name,\n                        'value': frmEl.value,\n                        'valid': frmEl.checkValidity(),\n                        'type': frmEl.type,\n                    }\n\n                    if (form[id].valid === false) {\n                        const v = frmEl.validity\n                        form[id].validity = {\n                            badInput: v.badInput === true ? v.badInput : undefined,\n                            customError: v.customError === true ? v.customError : undefined,\n                            patternMismatch: v.patternMismatch === true ? v.patternMismatch : undefined,\n                            rangeOverflow: v.rangeOverflow === true ? v.rangeOverflow : undefined,\n                            rangeUnderflow: v.rangeUnderflow === true ? v.rangeUnderflow : undefined,\n                            stepMismatch: v.stepMismatch === true ? v.stepMismatch : undefined,\n                            tooLong: v.tooLong === true ? v.tooLong : undefined,\n                            tooShort: v.tooShort === true ? v.tooShort : undefined,\n                            typeMismatch: v.typeMismatch === true ? v.typeMismatch : undefined,\n                            valueMissing: v.valueMissing === true ? v.valueMissing : undefined,\n                        }\n                    }\n\n                    if (frmEl.dataset) form[id].data = frmEl.dataset\n                }\n            })\n        }\n\n        // Check for CSS Classes\n        let classes\n        try {\n            classes = Array.from(target.classList)\n        } catch (e) {}\n\n        // Each `data-xxxx` attribute is added as a property\n        let payload = { ...target.dataset }\n\n        // Handle Notification events\n        let nprops\n        if ( Object.prototype.toString.call(target) === '[object Notification]') {\n            // Fixed payload for convenience\n            payload = `notification-${target.userAction}`\n            // Capture the notification properties\n            nprops = {\n                // userAction: target.userAction, // uib custom prop: click, close or error\n                actions: target.actions,\n                badge: target.badge,\n                body: target.body,\n                data: target.data,\n                dir: target.dir,\n                icon: target.icon,\n                image: target.image,\n                lang: target.lang,\n                renotify: target.renotify,\n                requireInteraction: target.requireInteraction,\n                silent: target.silent,\n                tag: target.tag,\n                timestamp: target.timestamp,\n                title: target.title,\n                vibrate: target.vibrate,\n            }\n        }\n        // console.log(Object.prototype.toString.call(target))\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            // - this may be an empty Object if no data attributes defined\n            payload: payload,\n\n            _ui: {\n                type: 'eventSend',\n                id: target.id !== '' ? target.id : undefined,\n                name: target.name !== '' ? target.name : undefined,\n                slotText: target.textContent ? target.textContent.substring(0, 255) : undefined,\n\n                form: form,\n                props: props,\n                attribs: attribs,\n                classes: classes,\n\n                notification: nprops,\n\n                event: domevent.type,\n                altKey: domevent.altKey,\n                ctrlKey: domevent.ctrlKey,\n                shiftKey: domevent.shiftKey,\n                metaKey: domevent.metaKey,\n\n                pointerType: domevent.pointerType,\n                nodeName: target.nodeName,\n\n                clientId: this.clientId,\n                pageName: this.pageName,\n                tabId: this.tabId,\n            }\n        }\n\n        if (frmVals.length > 0) {\n            frmVals.forEach( entry => {\n                msg.payload[entry.key] = entry.val\n            })\n        }\n\n        if (domevent.type === 'change') {\n            // Checkboxes don't have a value!!\n            msg._ui.newValue = msg.payload.value = 'checked' in target ? target.checked : domevent.target.value\n        }\n\n        log('trace', 'Uib:eventSend', 'Sending msg to Node-RED', msg)()\n        if (target.dataset && target.dataset.length === 0) log('warn', 'Uib:eventSend', 'No payload in msg. data-* attributes should be used.')()\n\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Easily send the entire DOM/HTML msg back to Node-RED\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     * @param {boolean} [send] If true (default) directly send response to Node-RED. Is false when calling from Node-RED as a command.\n     * @returns {string} The HTML as a string\n     */\n    htmlSend(originator = '', send = true) {\n        const out = `<!doctype html>\\n${document.documentElement.outerHTML}`\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            payload: out,\n            length: out.length,\n            topic: this.topic,\n        }\n\n        log('trace', 'Uib:htmlSend', 'Sending full HTML to Node-RED', msg)()\n\n        if (send === true) this._send(msg, this._ioChannels.client, originator)\n        return out\n    }\n\n    /** Process msg._uib.command - Remember to update #extCommands with new allowed commands\n     * @param {object} msg Msg from Node-RED containing a msg._uib object\n     */\n    _uibCommand(msg) {\n        const cmd = msg._uib.command\n        // Disallowed command request outputs error and ignores the msg (NB: Case must match)\n        if (!this.#extCommands.includes(cmd.trim())) {\n            log('error', 'Uib:_uibCommand', `Command '${cmd} is not allowed to be called externally`)()\n            return\n        }\n        const prop = msg._uib.prop\n        const value = msg._uib.value\n        let response, info\n\n        // Don't forget to update `docs/client-docs/control-from-node-red.md`\n        switch (cmd) {\n            case 'elementExists': {\n                response = this.elementExists(prop, false)\n                info = `Element \"${prop}\" ${response ? 'exists' : 'does not exist'}`\n                break\n            }\n\n            case 'get': {\n                response = this.get(prop)\n                break\n            }\n\n            case 'getManagedVarList': {\n                if (prop === 'full') response = this.getManagedVarList()\n                else response = Object.values(this.getManagedVarList())\n                break\n            }\n\n            case 'getWatchedVars': {\n                if (prop === 'full') response = this.getWatchedVars()\n                else response = Object.values(this.getWatchedVars())\n                break\n            }\n\n            case 'htmlSend': {\n                response = this.htmlSend('', false)\n                break\n            }\n\n            case 'include': {\n                // include is async\n                response = _ui.include(prop, value)\n                break\n            }\n\n            case 'set': {\n                let store = false\n                let autoload = false\n                if (msg._uib.options && msg._uib.options.store) {\n                    if (msg._uib.options.store === true) store = true\n                    if (msg._uib.options.autoload === true) autoload = true\n                }\n                response = this.set(prop, value, store, autoload)\n                break\n            }\n\n            case 'showMsg': {\n                response = this.showMsg(value, prop)\n                break\n            }\n\n            case 'showStatus': {\n                response = this.showStatus(value, prop)\n                break\n            }\n\n            case 'uiGet': {\n                response = _ui.uiGet(prop, value)\n                break\n            }\n\n            case 'uiWatch': {\n                response = this.uiWatch(prop)\n                break\n            }\n\n            case 'watchUrlHash': {\n                response = this.watchUrlHash(prop)\n                break\n            }\n\n            default: {\n                log('warning', 'Uib:_uibCommand', `Command '${cmd}' not yet implemented`)()\n                break\n            }\n        }\n\n        if (response === undefined) {\n            response = `'${prop}' is undefined`\n        }\n        if (Object(response).constructor === Promise) {\n            // response = `'${cmd} ${prop}' submitted. Cmd is async, no response available`\n            response\n                .then( (/** @type {any} */ data) => {\n                    msg.payload = msg._uib.response = data\n                    msg.info = msg._uib.info = info\n                    if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                    this.send(msg)\n                    return true\n                })\n                .catch( err => {\n                    log(0, 'Uib:_uibCommand', 'Error: ', err)()\n                })\n        } else {\n            msg.payload = msg._uib.response = response\n            msg.info = msg._uib.info = info\n            if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n            this.send(msg)\n        }\n\n    } // --- end of _uibCommand ---\n\n    /** Do we want to process something? Check pageName, clientId, tabId. Defaults to yes.\n     * @param {*} obj Either a msg._ui or msg._uib object to check\n     * @returns {boolean} True if we should process the inbound _ui/_uib msg, false if not.\n     */\n    _forThis(obj) {\n        let r = true\n\n        // Is this msg for this pageName?\n        if (obj.pageName && obj.pageName !== this.pageName) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this page')()\n            r = false\n        }\n\n        // Is this msg for this clientId?\n        if (obj.clientId && obj.clientId !== this.clientId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this clientId')()\n            r = false\n        }\n\n        // Is this msg for this tabId?\n        if (obj.tabId && obj.tabId !== this.tabId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this tabId')()\n            r = false\n        }\n\n        return r\n    }\n\n    // Handle received messages - Process some msgs internally, emit specific events on document that make it easy for coders to use\n    _msgRcvdEvents(msg) {\n        // Message received\n        this._dispatchCustomEvent('uibuilder:stdMsgReceived', msg)\n\n        // Topic\n        if ( msg.topic ) this._dispatchCustomEvent(`uibuilder:msg:topic:${msg.topic}`, msg)\n\n        // Handle msg._uib special requests\n        if (msg._uib) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._uib)) return\n\n            /** Process a client reload request from Node-RED - as the page is reloaded, everything else is ignored\n             * Note that msg._ui.reload is also actioned via the _ui processing below */\n            if (msg._uib.reload === true) {\n                log('trace', 'Uib:_msgRcvdEvents:_uib:reload', 'reloading')()\n                location.reload()\n                return\n            }\n\n            // Process msg._uib.command messages - allows Node-RED to run uibuilder FE functions\n            if (msg._uib.command) {\n                this._uibCommand(msg)\n                return\n            }\n\n            // Better to request via msg._ui - these are for backwards compatibility\n            if ( msg._uib.componentRef === 'globalNotification' ) {\n                _ui.showDialog('notify', msg._uib.options, msg)\n            }\n            if ( msg._uib.componentRef === 'globalAlert' ) {\n                _ui.showDialog('alert', msg._uib.options, msg)\n            }\n        }\n\n        // Handle msg._ui requests\n        if ( msg._ui ) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._ui)) return\n\n            log('trace', 'Uib:_msgRcvdEvents:_ui', 'Calling _uiManager')()\n            this._dispatchCustomEvent('uibuilder:msg:_ui', msg)\n            _ui._uiManager(msg)\n        }\n    } // --- end of _msgRcvdEvents ---\n\n    /** Callback handler for messages from Node-RED\n     * NOTE: `this` is the class here rather the `socket` as would be normal since we bind the correct `this` in the call.\n     *       Use this._socket if needing reference to the socket.\n     * @callback ioSetupFromServer Called from ioSetup/this._socket.on(this.#ioChannels.server, this.stdMsgFromServer.bind(this))\n     * @param {object} receivedMsg The msg object from Node-RED\n     * @this Uib\n     */\n    _stdMsgFromServer(receivedMsg) {\n\n        // Make sure that msg is an object & not null\n        receivedMsg = makeMeAnObject(receivedMsg, 'payload')\n\n        // Don't process if the inbound msg is not for us\n        if (receivedMsg._uib && !this._forThis(receivedMsg._uib)) return\n        if (receivedMsg._ui && !this._forThis(receivedMsg._ui)) return\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedMsg)\n\n        // Track how many messages have been received\n        this.set('msgsReceived', ++this.msgsReceived)\n\n        // Emit specific document events on msg receipt that make it easy for coders to use\n        this._msgRcvdEvents(receivedMsg)\n\n        if ( !('_ui' in receivedMsg && !('payload' in receivedMsg)) ) {\n            // Save the msg for further processing\n            this.set('msg', receivedMsg)\n        }\n\n        log('info', 'Uib:ioSetup:stdMsgFromServer', `Channel '${this._ioChannels.server}'. Received msg #${this.msgsReceived}.`, receivedMsg)()\n\n        // ! NOTE: Don't try to handle specialist messages here. See _msgRcvdEvents.\n\n    } // -- End of websocket receive DATA msg from Node-RED -- //\n\n    /** Handles original control msgs (not to be confused with \"new\" msg._uib controls)\n     * @param {*} receivedCtrlMsg The msg received on the socket.io control channel\n     */\n    _ctrlMsgFromServer(receivedCtrlMsg) {\n\n        // Make sure that msg is an object & not null\n        if (receivedCtrlMsg === null) {\n            receivedCtrlMsg = {}\n        } else if (typeof receivedCtrlMsg !== 'object') {\n            const msg = {}\n            msg['uibuilderCtrl:' + this._ioChannels.control] = receivedCtrlMsg\n            receivedCtrlMsg = msg\n        }\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedCtrlMsg)\n\n        this.set('ctrlMsg', receivedCtrlMsg)\n        this.set('msgsCtrlReceived', ++this.msgsCtrlReceived)\n\n        log('trace', 'Uib:ioSetup:_ctrlMsgFromServer', `Channel '${this._ioChannels.control}'. Received control msg #${this.msgsCtrlReceived}`, receivedCtrlMsg)()\n\n        /** Process control msg types */\n        switch (receivedCtrlMsg.uibuilderCtrl) {\n            // Node-RED is shutting down\n            case 'shutdown': {\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, '\u274C Received \"shutdown\" from server')()\n                this.set('serverShutdown', undefined)\n                break\n            }\n\n            /** We are connected to the server - 1st msg from server */\n            case 'client connect': {\n                log('trace', `Uib:ioSetup:${this._ioChannels.control}`, 'Received \"client connect\" from server')()\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, `\u2705 Server connected. Version: ${receivedCtrlMsg.version}\\nServer time: ${receivedCtrlMsg.serverTimestamp}, Sever time offset: ${this.serverTimeOffset} hours`)()\n\n                if ( !Uib._meta.version.startsWith(receivedCtrlMsg.version.split('-')[0]) ) {\n                    log('warn', `Uib:ioSetup:${this._ioChannels.control}`, `Server version (${receivedCtrlMsg.version}) not the same as the client version (${Uib._meta.version})`)()\n                }\n\n                if (this.autoSendReady === true) { // eslint-disable-line no-lonely-if\n                    log('trace', `Uib:ioSetup:${this._ioChannels.control}/client connect`, 'Auto-sending ready-for-content/replay msg to server')\n                    // @since 0.4.8c Add cacheControl property for use with node-red-contrib-infocache\n                    // @since 6.1.0 Don't bother, we use the \"client connect\" msg\n                    // this._send({\n                    //     'uibuilderCtrl': 'ready for content',\n                    //     'cacheControl': 'REPLAY',\n                    // }, this._ioChannels.control)\n                }\n\n                break\n            }\n\n            default: {\n                log('trace', `uibuilderfe:ioSetup:${this._ioChannels.control}`, `Received ${receivedCtrlMsg.uibuilderCtrl} from server`)\n                // Anything else to do for other control msgs?\n            }\n\n        } // ---- End of process control msg types ---- //\n\n    } // -- End of websocket receive CONTROL msg from Node-RED -- //\n\n    /** Send log text to uibuilder's beacon endpoint (works even if socket.io not connected)\n     * @param {string} txtToSend Text string to send\n     * @param {string|undefined} logLevel Log level to use. If not supplied, will default to debug\n     */\n    beaconLog(txtToSend, logLevel) {\n        if (!logLevel) logLevel = 'debug'\n        navigator.sendBeacon('./_clientLog', `${logLevel}::${txtToSend}`)\n    }\n\n    /** Send log info back to Node-RED over uibuilder's websocket control output (Port #2)\n     * -@param {...*} arguments All arguments passed to the function are added to the msg.payload\n     */\n    logToServer() {\n        this.sendCtrl({\n            uibuilderCtrl: 'client log message',\n            payload: arguments,\n            // \"version\":\"6.1.0-iife.min\",\n            _socketId: this._socket.id,\n            // \"ip\":\"::1\",\n            clientId: this.clientId,\n            tabId: this.tabId,\n            // \"url\":\"esp-test\",\n            pageName: this.pageName,\n            connections: this.connectedNum,\n            lastNavType: this.lastNavType,\n        })\n    }\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Socket.IO -------- //\n\n    /** Return the Socket.IO namespace\n     * The cookie method is the most reliable but this falls back to trying to work it\n     * out from the URL if cookies not available. That won't work if page is in a sub-folder.\n     * since 2017-10-21 Improve method to cope with more complex paths - thanks to Steve Rickus @shrickus\n     * since 2017-11-10 v1.0.1 Check cookie first then url. cookie works even if the path is more complex (e.g. sub-folder)\n     * since 2020-01-25 Removed httpRoot from namespace to prevent proxy induced errors\n     * @returns {string} Socket.IO namespace\n     */\n    _getIOnamespace() {\n\n        let ioNamespace\n\n        /** Try getting the namespace cookie. */\n        ioNamespace = this.cookies['uibuilder-namespace']\n\n        // if it wasn't available, try using the current url path\n        if (ioNamespace === undefined || ioNamespace === '') {\n            // split url path & eliminate any blank elements, and trailing or double slashes\n            const u = window.location.pathname.split('/')\n                .filter(function (t) { return t.trim() !== '' })\n\n            /** since v2.0.5 Extra check for 0 length, Issue #73. since 2017-11-06 If the last element of the path is an .html file name, remove it */\n            if (u.length > 0 && (u[u.length - 1].endsWith('.html'))) u.pop()\n\n            // Get the last part of the url path, this MUST match the namespace in uibuilder\n            ioNamespace = u.pop()\n\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via url path: ${ioNamespace}`)()\n        } else {\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via cookie: ${ioNamespace}`)()\n        }\n\n        this.url = ioNamespace\n        // Namespace HAS to start with a /\n        ioNamespace = '/' + ioNamespace\n\n        log('trace', 'uibuilder.module.js:getIOnamespace', `Final Socket.IO namespace: ${ioNamespace}`)()\n\n        return ioNamespace\n    } // --- End of set IO namespace --- //\n\n    /** Function used to check whether Socket.IO is connected to the server, reconnect if not (recursive)\n     * @param {number} [delay] Initial delay before checking (ms). Default=2000ms\n     * @param {number} [factor] Multiplication factor for subsequent checks (delay*factor). Default=1.5\n     * @param {number} [depth] Recursion depth\n     * @returns {boolean|undefined} Whether or not Socket.IO is connected to uibuilder in Node-RED\n     */\n    _checkConnect(delay, factor, depth = 1) {\n        if ( navigator.onLine === false ) return // Don't bother if we know we are offline\n\n        if (!delay) delay = this.retryMs\n        if (!factor) factor = this.retryFactor\n\n        log('trace', 'Uib:checkConnect', `Checking connection. Connected: ${this._socket.connected}. Timer: ${this.#timerid}. Depth: ${depth}. Delay: ${delay}. Factor: ${factor}`, this._socket)()\n\n        // If we are connected ...\n        if (this._socket.connected === true) {\n            // Clear the setTimeout\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this.set('ioConnected', true)\n            this.set('socketError', null)\n            return true\n        }\n\n        // ... we aren't connected so:\n        this.set('ioConnected', false)\n\n        // we only want one running at a time\n        if (this.#timerid) window.clearTimeout(this.#timerid)\n\n        // Create the new timer\n        this.#timerid = window.setTimeout(() => {\n            log('warn', 'Uib:checkConnect:setTimeout', `Socket.IO reconnection attempt. Current delay: ${delay}. Depth: ${depth}`)()\n\n            // this is necessary sometimes when the socket fails to connect on startup\n            this._socket.close()\n\n            // Try to reconnect\n            this._socket.connect()\n\n            // don't need to check whether we have connected as the timer will have been cleared if we have\n            this.#timerid = null\n\n            // @ts-ignore Create new timer for next time round with extended delay\n            this._checkConnect(delay * factor, factor, depth++)\n        }, delay)\n\n        return false\n    } // --- End of checkConnect Fn--- //\n\n    // See message handling section for msg receipt handlers\n\n    /** Called by _ioSetup when Socket.IO connects to Node-RED */\n    _onConnect() {\n        this.set('connectedNum', this.connectedNum++)\n        // How many times has the client (re)connected since page load\n        this.socketOptions.auth.connectedNum = this.connectedNum\n        // How was the page last loaded?\n        this.socketOptions.auth.lastNavType = this.lastNavType\n        // Session tab id\n        this.socketOptions.auth.tabId = this.tabId\n        this.socketOptions.auth.more = this.tabId\n\n        log('info', 'Uib:ioSetup', `\u2705 SOCKET CONNECTED. Connection count: ${this.connectedNum}, Is a Recovery?: ${this._socket.recovered}. \\nNamespace: ${this.ioNamespace}`)()\n        this._dispatchCustomEvent('uibuilder:socket:connected', { 'numConnections': this.connectedNum, 'isRecovery': this._socket.recovered })\n\n        this._checkConnect() // resets any reconnection timers & sets connected flag\n    }\n\n    /** Called by _ioSetup when Socket.IO disconnects from Node-RED\n     * @param {string} reason Disconnection title\n     */\n    _onDisconnect(reason) {\n        // reason === 'io server disconnect' - redeploy of Node instance\n        // reason === 'transport close' - Node-RED terminating\n        // reason === 'ping timeout' - didn't receive a pong response?\n        log('info', 'Uib:ioSetup:socket-disconnect', `\u26D4 Socket Disconnected. Reason: ${reason}`)()\n\n        this._dispatchCustomEvent('uibuilder:socket:disconnected', reason)\n\n        /** A workaround for SIO's failure to reconnect after a disconnection */\n        this._checkConnect()\n    }\n\n    /** Setup Socket.io\n     * since v2.0.0-beta2 Moved to a function and called by the user (uibuilder.start()) so that namespace & path can be passed manually if needed\n     * @returns {boolean} Attaches socket.io manager to self._socket and updates self.ioNamespace & self.ioPath as needed\n     */\n    _ioSetup() {\n\n        // Just a notification, actual load is done outside the class (see start of file)\n        if (io === undefined) {\n            log('error', 'Uib:ioSetup', 'Socket.IO client not loaded, Node-RED comms will not work')()\n            return false\n        }\n\n        // If socket is already set up, close it and remove all of the listeners\n        if (this._socket) {\n            log('trace', 'Uib:ioSetup', 'Removing listeners in preparation for redoing Socket.IO connections')()\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this._socket.close()\n            this._socket.offAny()\n            this._socket = undefined\n            this.set('ioConnected', false)\n        }\n\n        // Update the URL path to make sure we have the right one\n        this.socketOptions.path = this.ioPath\n\n        //#region --- custom meta-data ---\n        // Add the pageName\n        this.socketOptions.auth.pageName = this.pageName\n        // Add stable client id (static unless browser closed)\n        this.socketOptions.auth.clientId = this.clientId\n        this.socketOptions.transportOptions.polling.extraHeaders['x-clientid'] = `${Uib._meta.displayName}; ${Uib._meta.type}; ${Uib._meta.version}; ${this.clientId}`\n        // Session tab id\n        this.socketOptions.auth.tabId = this.tabId\n        // How was the page last loaded?\n        this.socketOptions.auth.lastNavType = this.lastNavType\n        // How many times has the client (re)connected since page load\n        this.socketOptions.auth.connectedNum = this.connectedNum\n        //#endregion --- ---- ---\n\n        // Create the socket - make sure client uses Socket.IO version from the uibuilder module (using path)\n        log('trace', 'Uib:ioSetup', `About to create IO object. Transports: [${this.socketOptions.transports.join(', ')}]`)()\n        this._socket = io(this.ioNamespace, this.socketOptions)\n\n        /** When the socket is connected - set ioConnected flag and reset connect timer  */\n        this._socket.on('connect', this._onConnect.bind(this))\n\n        // RECEIVE a STANDARD, non-control msg from Node-RED server\n        this._socket.on(this._ioChannels.server, this._stdMsgFromServer.bind(this))\n\n        // RECEIVE a CONTROL msg from Node-RED server - see also sendCtrl()\n        this._socket.on(this._ioChannels.control, this._ctrlMsgFromServer.bind(this))\n\n        // When the socket is disconnected ..............\n        this._socket.on('disconnect', this._onDisconnect.bind(this))\n\n        // Socket.io connection error - probably the wrong ioPath - or client is offline\n        this._socket.on('connect_error', (err) => {\n            if ( navigator.onLine === false ) return // Don't bother with an error if we know we are offline\n            log('error', 'Uib:ioSetup:connect_error', `\u274C Socket.IO Connect Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket connect error processing ---\n\n        // Socket.io error - from the server (socket.use middleware triggered an error response)\n        this._socket.on('error', (err) => {\n            log('error', 'Uib:ioSetup:error', `\u274C Socket.IO Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket error processing ---\n\n        // Ensure we are connected, retry if not\n        this._checkConnect()\n\n        return true\n\n        /* We really don't need these, just for interest\n            self._socket.io.on('packet', function onPacket(data){\n                // we get one of these for each REAL msg (not ping/pong)\n                console.debug('PACKET', data)\n            })\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n                //console.dir(self._socket)\n            }) // --- End of socket pong processing ---\n            self._socket.io.on('packet', function(data){\n                // We get one of these for actual messages, not ping/pong\n                console.debug('PACKET', data)\n            })\n            self._socket.on('connect_timeout', function(timeout) {\n                console.debug('SOCKET CONNECT TIMEOUT - Namespace: ' + ioNamespace + ', Timeout: ' + timeout)\n            }) // --- End of socket connect timeout processing ---\n            self._socket.on('reconnect', function(attemptNum) {\n                console.debug('SOCKET RECONNECTED - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect processing ---\n            self._socket.on('reconnect_attempt', function(attemptNum) {\n                console.debug('SOCKET RECONNECT ATTEMPT - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect_attempt processing ---\n            self._socket.on('reconnecting', function(attemptNum) {\n                console.debug('SOCKET RECONNECTING - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnecting processing ---\n            self._socket.on('reconnect_error', function(err) {\n                console.debug('SOCKET RECONNECT ERROR - Namespace: ' + ioNamespace + ', Reason: ' + err.message)\n                //console.dir(err)\n            }) // --- End of socket reconnect_error processing ---\n            self._socket.on('reconnect_failed', function() {\n                console.debug('SOCKET RECONNECT FAILED - Namespace: ' + ioNamespace)\n            }) // --- End of socket reconnect_failed processing ---\n            self._socket.on('ping', function() {\n                console.debug('SOCKET PING')\n            }) // --- End of socket ping processing ---\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n            }) // --- End of socket pong processing ---\n            */\n    } // ---- End of ioSetup ---- //\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Class construction & startup method -------- //\n\n    constructor() {\n        log('trace', 'Uib:constructor', 'Starting')()\n\n        // Track whether the client is online or offline\n        window.addEventListener('offline', (e) => {\n            this.set('online', false)\n            this.set('ioConnected', false)\n            log('warn', 'Browser', 'DISCONNECTED from network')()\n        })\n        window.addEventListener('online', (e) => {\n            this.set('online', true)\n            log('warn', 'Browser', 'Reconnected to network')()\n            this._checkConnect()\n        })\n\n        document.cookie.split(';').forEach((c) => {\n            const splitC = c.split('=')\n            this.cookies[splitC[0].trim()] = splitC[1]\n        })\n\n        /** Client ID set by uibuilder - lasts until browser profile is closed, applies to all tabs */\n        this.set('clientId', this.cookies['uibuilder-client-id'])\n        log('trace', 'Uib:constructor', 'Client ID: ', this.clientId)()\n\n        /** Tab ID - lasts while the tab is open (even if reloaded)\n         * WARNING: Duplicating a tab retains the same tabId\n         */\n        this.set('tabId', window.sessionStorage.getItem('tabId'))\n        if (!this.tabId) {\n            this.set('tabId', `t${Math.floor(Math.random() * 1000000)}`)\n            window.sessionStorage.setItem('tabId', this.tabId)\n        }\n\n        // document.addEventListener('pagehide', (event) => {\n        //     // console.log(`pagehide. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pagehide. From Cache?: ${event.persisted}`)\n        // })\n        // document.addEventListener('pageshow', (event) => {\n        //     // console.log(`pageshow. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pageshow. From Cache?: ${event.persisted}`)\n        // })\n        document.addEventListener('load', () => {\n            this.set('isVisible', true)\n        })\n        document.addEventListener('visibilitychange', () => {\n            // hidden=unload, minimise. visible=un-minimise (not fired on load)\n            this.set('isVisible', document.visibilityState === 'visible')\n            this.sendCtrl({ uibuilderCtrl: 'visibility', isVisible: this.isVisible })\n            // navigator.userActivation is experimental Chromium only\n            // console.log('visibilitychange', ':', `Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n            // navigator.sendBeacon('./_clientLog', `${(new Date()).toISOString()} Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n        })\n\n        // Set a listener to update showStatus table if it is active\n        document.addEventListener('uibuilder:propertyChanged', (event) => {\n            if (!this.#isShowStatus) return\n\n            // @ts-ignore\n            if (event.detail.prop in this.#showStatus) {\n                // @ts-ignore\n                document.querySelector(`td[data-vartype=\"${event.detail.prop}\"]`).innerText = JSON.stringify(event.detail.value)\n            }\n        })\n\n        this.set('ioNamespace', this._getIOnamespace())\n\n        //#region - Try to make sure client uses Socket.IO client version from the uibuilder module (using cookie or path) @since v2.0.0 2019-02-24 allows for httpNodeRoot\n\n        /** httpNodeRoot (to set path) */\n        if ('uibuilder-webRoot' in this.cookies) {\n            this.set('httpNodeRoot', this.cookies['uibuilder-webRoot'])\n            log('trace', 'Uib:constructor', `httpNodeRoot set by cookie to \"${this.httpNodeRoot}\"`)()\n        } else {\n            // split current url path, eliminate any blank elements and trailing or double slashes\n            const fullPath = window.location.pathname.split('/').filter(function (t) { return t.trim() !== '' })\n            /** handle url includes file name - @since v2.0.5 Extra check for 0 length, Issue #73. */\n            if (fullPath.length > 0 && fullPath[fullPath.length - 1].endsWith('.html')) fullPath.pop()\n            fullPath.pop() // gives the last path section of the url\n            this.set('httpNodeRoot', `/${fullPath.join('/')}`)\n            log('trace', '[Uib:constructor]', `httpNodeRoot set by URL parsing to \"${this.httpNodeRoot}\". NOTE: This may fail for pages in sub-folders.`)()\n        }\n        this.set('ioPath', urlJoin(this.httpNodeRoot, Uib._meta.displayName, 'vendor', 'socket.io'))\n        log('trace', 'Uib:constructor', `ioPath: \"${this.ioPath}\"`)()\n\n        //#endregion\n\n        // Work out pageName\n        this.set('pageName', window.location.pathname.replace(`${this.ioNamespace}/`, ''))\n        if ( this.pageName.endsWith('/') ) this.set('pageName', `${this.pageName}index.html`)\n        if ( this.pageName === '' ) this.set('pageName', 'index.html')\n\n        // Attempt to restore autoload variables\n        try {\n            const autoloadVars = this.getStore('_uibAutoloadVars')\n            if (Object.keys(autoloadVars).length > 0) {\n                Object.keys(autoloadVars).forEach( (id) => {\n                    this.set(id, this.getStore(id))\n                })\n            }\n        } catch (e) {}\n\n        this._dispatchCustomEvent('uibuilder:constructorComplete')\n\n        log('trace', 'Uib:constructor', 'Ending')()\n    }\n\n    /** Start up Socket.IO comms and listeners\n     * This has to be done separately because if running from a web page in a sub-folder of src/dist, uibuilder cannot\n     * necessarily work out the correct ioPath to use.\n     * Also, if cookies aren't permitted in the browser, both ioPath and ioNamespace may need to be specified.\n     * @param {object} [options] The start options object.\n     * @returns {void}\n     */\n    start(options) {\n        log('trace', 'Uib:start', 'Starting')()\n\n        // Cancel the msg event handler if already present\n        if ( this.#MsgHandler ) this.cancelChange('msg', this.#MsgHandler)\n\n        if (this.started === true) {\n            log('info', 'Uib:start', 'Start function already called. Resetting Socket.IO and msg handler.')()\n        }\n\n        log('log', 'Uib:start', 'Cookies: ', this.cookies, `\\nClient ID: ${this.clientId}`)()\n        log('trace', 'Uib:start', 'ioNamespace: ', this.ioNamespace, `\\nioPath: ${this.ioPath}`)()\n\n        // Handle options\n        if (options) {\n            if (options.ioNamespace !== undefined && options.ioNamespace !== null && options.ioNamespace !== '') this.set('ioNamespace', options.ioNamespace)\n            if (options.ioPath !== undefined && options.ioPath !== null && options.ioPath !== '') this.set('ioPath', options.ioPath)\n            // See below for handling of options.loadStylesheet\n        }\n\n        // Do we need to load styles?\n        if ( document.styleSheets.length >= 1 || (document.styleSheets.length === 1 && document.styleSheets[0].cssRules.length === 0) ) {\n            log('info', 'Uib:start', 'Styles already loaded so not loading uibuilder default styles.')()\n        } else {\n            if (options && options.loadStylesheet === false) log('info', 'Uib:start', 'No styles loaded & options.loadStylesheet === false.')()\n            else {\n                log('info', 'Uib:start', 'No styles loaded, loading uibuilder default styles.')()\n                this.loadStyleSrc(`${this.httpNodeRoot}/uibuilder/uib-brand.min.css`)\n            }\n        }\n\n        /** Handle specialist messages like reload and _ui -> Moved to _msgRcvdEvents */\n\n        // Track last browser navigation type: navigate, reload, back_forward, prerender\n        const [entry] = performance.getEntriesByType('navigation')\n        // @ts-ignore\n        this.set('lastNavType', entry.type)\n\n        // Start up (or restart) Socket.IO connections and listeners. Returns false if io not found\n        this.set('started', this._ioSetup())\n\n        if ( this.started === true ) {\n            log('trace', 'Uib:start', 'Start completed. Socket.IO client library loaded.')()\n        } else {\n            log('error', 'Uib:start', 'Start completed. ERROR: Socket.IO client library NOT LOADED.')()\n        }\n\n        // Watch for URL hash changes in case using a front-end router. Updates watched var `urlHash` and socket.io `auth.urlHash`\n        this._watchHashChanges()\n\n        // Check if Vue is present (used for dynamic UI processing)\n        if (window['Vue']) {\n            this.set('isVue', true)\n            try {\n                this.set('vueVersion', window['Vue'].version)\n            } catch (e) { }\n            log('trace', 'Uib:start', `VueJS is loaded. Version: ${this.vueVersion}`)()\n        } else {\n            log('trace', 'Uib:start', 'VueJS is not loaded.')()\n        }\n\n        // Check if DOMPurify library is loaded\n        if (window['DOMPurify']) {\n            this.set('purify', true)\n            log('trace', 'Uib:start', 'DOMPurify is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'DOMPurify is not loaded.')()\n        }\n        // Check if Markdown-IT library is loaded\n        if (window['markdownit']) {\n            this.set('markdown', true)\n            log('trace', 'Uib:start', 'Markdown-IT is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'Markdown-IT is not loaded.')()\n        }\n\n        // if (window['DOMPurify']) {\n        //     this.set('purify', true)\n        //     log('trace', 'Uib:start', 'DOMPurify is loaded.')\n        // } else {\n        //     log('trace', 'Uib:start', 'DOMPurify is not loaded.')\n        // }\n\n        // Set up msg listener for the optional showMsg\n        this.onChange('msg', (msg) => {\n            if (this.#isShowMsg === true) {\n                const eMsg = document.getElementById('uib_last_msg')\n                if (eMsg) eMsg.innerHTML = this.syntaxHighlight(msg)\n            }\n        })\n\n        this._dispatchCustomEvent('uibuilder:startComplete')\n    }\n\n    //#endregion -------- ------------ -------- //\n} // ==== End of Class Uib ====\n\n//#region --- Wrap up - get things started ---\n\n// Create an instance (we will only ever want one)\nconst uibuilder = new Uib()\n\n// Assign reference to the instance to the global `window` object\n// Only useful if loading via <script> tag - prefer loading via `import uibuilder from ...`\nif (!window['uibuilder']) {\n    window['uibuilder'] = uibuilder\n} else {\n    log('error', 'uibuilder.module.js', '`uibuilder` already assigned to window. Have you tried to load it more than once?')\n}\nif (!window['uib']) {\n    window['uib'] = uibuilder\n} else {\n    log('warn', 'uibuilder.module.js', '`uib` shortcut already assigned to window.')\n}\n\n// Assign `$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$`.\nif (!window['$']) {\n    /** @type {HTMLElement} */\n    window['$'] = window['uibuilder'].$ // document.querySelector.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` instead.')\n}\n// Assign `$$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$$']) {\n    /** @type {HTMLElement} */\n    window['$$'] = window['uibuilder'].$$ // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` instead.')\n}\n\n// Can import as `import uibuilder from ...` OR `import {uibuilder} from ...`\nexport { uibuilder }\nexport default uibuilder\n\n// Attempt to run start fn\nuibuilder.start()\n\n// Add the class as a new Custom Element to the window object\ncustomElements.define('uib-var', UibVar)\n\n//#endregion --- Wrap up ---\n\n// EOF\n", "/** A zero dependency web component that will display a managed uibuilder variable.\n *\n * Version: 0.0.1 2023-10-07\n *\n * ToDo:\n * -\n */\n/*\n  Copyright (c) 2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n// const template = document.createElement('template')\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<link type=\"text/css\" rel=\"stylesheet\" href=\"\"../uibuilder/uib-brand.min.css\"\" media=\"all\"><span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`\n// {/* <style>@import url(\"../uibuilder/uib-brand.min.css\");</style><span></span> */}\n// `\n\nexport default class UibVar extends HTMLElement {\n    //#region --- Class Properties ---\n    /** @type {string} Name of the uibuilder mangaged variable to use */\n    variable\n    /** Current value of the watched variable */\n    value\n    /** Whether to output if the variable is undefined */\n    undefined = false\n    /** Whether to send update value to Node-RED on change */\n    report = false\n    /** What is the value type */\n    type = 'plain'\n    /** what are the available types? */\n    types = ['plain', 'html', 'markdown', 'object']\n\n    /** Mini jQuery-like shadow dom selector (see constructor) */\n    $\n    \n    /** Holds a count of how many instances of this component are on the page */\n    static _iCount = 0\n    /** @type {Array<string>} List of all of the html attribs (props) listened to */\n    static props = ['name', 'id', 'variable', 'undefined', 'report', 'type']\n    //#endregion --- Class Properties ---\n\n    constructor() {\n        super()\n        this.shadow = this.attachShadow({ mode: 'open', delegatesFocus: true })\n            // .append(template.content.cloneNode(true))\n\n        this.$ = this.shadowRoot.querySelector.bind(this.shadowRoot)\n\n        // Apply external styles to the shadow dom\n        this.css = document.createElement(\"link\")\n        this.css.setAttribute(\"type\", \"text/css\")\n        this.css.setAttribute(\"rel\", \"stylesheet\")\n        this.css.setAttribute(\"href\", \"../uibuilder/uib-brand.min.css\")\n\n        this.dispatchEvent(new Event(`uib-var:construction`, { bubbles: true, composed: true }))\n    }\n\n    // Makes HTML attribute change watched\n    static get observedAttributes() {\n        return UibVar.props\n    }\n\n    /** NOTE: On initial startup, this is called for each watched attrib set in HTML - BEFORE connectedCallback is called  */\n    attributeChangedCallback(attrib, oldVal, newVal) {\n        if ( oldVal === newVal ) return\n\n        switch (attrib) {\n            case 'variable': {\n                if (newVal === '') throw new Error('[uib-var] Attribute \"variable\" MUST be set to a UIBUILDER managed variable name')\n                this.variable = newVal\n                this.doWatch()\n                break\n            }\n            case 'undefined': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.undefined = true\n                else this.undefined = false\n                break\n            }\n            case 'report': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.report = true\n                else this.report = false\n                break\n            }\n            case 'type': {\n                if (newVal === '' || !this.types.includes(newVal.toLowerCase())) this.type = 'plain'\n                else this.type = newVal\n                break\n            }\n\n            default: {\n                this[attrib] = newVal\n                break\n            }\n        }\n    } // --- end of attributeChangedCallback --- //\n\n    // Runs when an instance is added to the DOM\n    connectedCallback() {\n        // Make sure instance has an ID. Create an id from name or calculation if needed\n        if (!this.id) {\n            if (!this.name) this.name = this.getAttribute('name')\n            if (this.name) this.id = this.name.toLowerCase().replace(/\\s/g, '_')\n            else this.id = `uib-var-${++UibVar._iCount}`\n        }\n    }  // ---- end of connectedCallback ---- //\n\n    // Runs when an instance is removed from the DOM\n    // disconnectedCallback() {} // ---- end of disconnectedCallback ---- //\n\n    /** Process changes to the required uibuilder variable */\n    doWatch() {\n        if (!this.variable) throw new Error('No variable name provided')\n        // if (!window['uibuilder']) throw new Error('UIBUILDER client library not loaded - this component must be loaded AFTER the UIBUILDER library')\n\n        this.value = window['uibuilder'].get(this.variable)\n        this.varDom()\n\n        // Watch for changes in the variable\n        window['uibuilder'].onChange(this.variable, (val) => {\n            this.value = val\n            this.varDom()\n            if (this.report === true) window['uibuilder'].send({topic: this.variable, payload: this.value || undefined})\n        })\n    }\n\n    /** Convert this.value to DOM output */\n    varDom() {\n        // If user doesn't want to show undefined vars, allow the component slot to show instead\n        if (this.value === undefined && this.undefined !== true) { \n            this.shadow.innerHTML = '<slot></slot>'\n            return\n        }\n        \n        let val = this.value\n\n        // console.log('\uD83E\uDDEA varDOM: ', val, typeof val, this.type)\n\n        switch (this.type) {\n            case 'markdown': {\n                this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(window['uibuilder'].convertMarkdown(val))\n                break\n            }\n        \n            case 'object': {\n                // console.log(window['uibuilder'].syntaxHighlight(val))\n                this.shadow.innerHTML = `<pre class=\"syntax-highlight\">${window['uibuilder'].syntaxHighlight(val)}</pre>`\n                break\n            }\n        \n            case 'plain':\n            case 'html':\n            default: {\n                const t = typeof val\n                if (Array.isArray(val) || t === '[object Object]' || t === 'object') {\n                    try {\n                        this.shadow.innerHTML = JSON.stringify(val)\n                    } catch (e) {\n                        this.shadow.innerHTML = val\n                    }\n                } else {\n                    this.shadow.innerHTML = val\n                }\n                break\n            }\n        }\n\n        this.shadow.appendChild(this.css)\n        // this.$('span').innerHTML = window['uibuilder'].sanitiseHTML(val)\n        // this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(val)\n    }\n}\n\n// Add the class as a new Custom Element to the window object \n// customElements.define('uib-var', UibVar)\n", "const PACKET_TYPES = Object.create(null); // no Map = no polyfill\nPACKET_TYPES[\"open\"] = \"0\";\nPACKET_TYPES[\"close\"] = \"1\";\nPACKET_TYPES[\"ping\"] = \"2\";\nPACKET_TYPES[\"pong\"] = \"3\";\nPACKET_TYPES[\"message\"] = \"4\";\nPACKET_TYPES[\"upgrade\"] = \"5\";\nPACKET_TYPES[\"noop\"] = \"6\";\nconst PACKET_TYPES_REVERSE = Object.create(null);\nObject.keys(PACKET_TYPES).forEach(key => {\n    PACKET_TYPES_REVERSE[PACKET_TYPES[key]] = key;\n});\nconst ERROR_PACKET = { type: \"error\", data: \"parser error\" };\nexport { PACKET_TYPES, PACKET_TYPES_REVERSE, ERROR_PACKET };\n", "import { PACKET_TYPES } from \"./commons.js\";\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        Object.prototype.toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\n// ArrayBuffer.isView method is not defined in IE10\nconst isView = obj => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj && obj.buffer instanceof ArrayBuffer;\n};\nconst encodePacket = ({ type, data }, supportsBinary, callback) => {\n    if (withNativeBlob && data instanceof Blob) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(data, callback);\n        }\n    }\n    else if (withNativeArrayBuffer &&\n        (data instanceof ArrayBuffer || isView(data))) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(new Blob([data]), callback);\n        }\n    }\n    // plain string\n    return callback(PACKET_TYPES[type] + (data || \"\"));\n};\nconst encodeBlobAsBase64 = (data, callback) => {\n    const fileReader = new FileReader();\n    fileReader.onload = function () {\n        const content = fileReader.result.split(\",\")[1];\n        callback(\"b\" + (content || \"\"));\n    };\n    return fileReader.readAsDataURL(data);\n};\nfunction toArray(data) {\n    if (data instanceof Uint8Array) {\n        return data;\n    }\n    else if (data instanceof ArrayBuffer) {\n        return new Uint8Array(data);\n    }\n    else {\n        return new Uint8Array(data.buffer, data.byteOffset, data.byteLength);\n    }\n}\nlet TEXT_ENCODER;\nexport function encodePacketToBinary(packet, callback) {\n    if (withNativeBlob && packet.data instanceof Blob) {\n        return packet.data\n            .arrayBuffer()\n            .then(toArray)\n            .then(callback);\n    }\n    else if (withNativeArrayBuffer &&\n        (packet.data instanceof ArrayBuffer || isView(packet.data))) {\n        return callback(toArray(packet.data));\n    }\n    encodePacket(packet, false, encoded => {\n        if (!TEXT_ENCODER) {\n            TEXT_ENCODER = new TextEncoder();\n        }\n        callback(TEXT_ENCODER.encode(encoded));\n    });\n}\nexport { encodePacket };\n", "// imported from https://github.com/socketio/base64-arraybuffer\nconst chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';\n// Use a lookup table to find the index.\nconst lookup = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);\nfor (let i = 0; i < chars.length; i++) {\n    lookup[chars.charCodeAt(i)] = i;\n}\nexport const encode = (arraybuffer) => {\n    let bytes = new Uint8Array(arraybuffer), i, len = bytes.length, base64 = '';\n    for (i = 0; i < len; i += 3) {\n        base64 += chars[bytes[i] >> 2];\n        base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];\n        base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];\n        base64 += chars[bytes[i + 2] & 63];\n    }\n    if (len % 3 === 2) {\n        base64 = base64.substring(0, base64.length - 1) + '=';\n    }\n    else if (len % 3 === 1) {\n        base64 = base64.substring(0, base64.length - 2) + '==';\n    }\n    return base64;\n};\nexport const decode = (base64) => {\n    let bufferLength = base64.length * 0.75, len = base64.length, i, p = 0, encoded1, encoded2, encoded3, encoded4;\n    if (base64[base64.length - 1] === '=') {\n        bufferLength--;\n        if (base64[base64.length - 2] === '=') {\n            bufferLength--;\n        }\n    }\n    const arraybuffer = new ArrayBuffer(bufferLength), bytes = new Uint8Array(arraybuffer);\n    for (i = 0; i < len; i += 4) {\n        encoded1 = lookup[base64.charCodeAt(i)];\n        encoded2 = lookup[base64.charCodeAt(i + 1)];\n        encoded3 = lookup[base64.charCodeAt(i + 2)];\n        encoded4 = lookup[base64.charCodeAt(i + 3)];\n        bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n        bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n        bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n    }\n    return arraybuffer;\n};\n", "import { ERROR_PACKET, PACKET_TYPES_REVERSE } from \"./commons.js\";\nimport { decode } from \"./contrib/base64-arraybuffer.js\";\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nexport const decodePacket = (encodedPacket, binaryType) => {\n    if (typeof encodedPacket !== \"string\") {\n        return {\n            type: \"message\",\n            data: mapBinary(encodedPacket, binaryType)\n        };\n    }\n    const type = encodedPacket.charAt(0);\n    if (type === \"b\") {\n        return {\n            type: \"message\",\n            data: decodeBase64Packet(encodedPacket.substring(1), binaryType)\n        };\n    }\n    const packetType = PACKET_TYPES_REVERSE[type];\n    if (!packetType) {\n        return ERROR_PACKET;\n    }\n    return encodedPacket.length > 1\n        ? {\n            type: PACKET_TYPES_REVERSE[type],\n            data: encodedPacket.substring(1)\n        }\n        : {\n            type: PACKET_TYPES_REVERSE[type]\n        };\n};\nconst decodeBase64Packet = (data, binaryType) => {\n    if (withNativeArrayBuffer) {\n        const decoded = decode(data);\n        return mapBinary(decoded, binaryType);\n    }\n    else {\n        return { base64: true, data }; // fallback for old browsers\n    }\n};\nconst mapBinary = (data, binaryType) => {\n    switch (binaryType) {\n        case \"blob\":\n            if (data instanceof Blob) {\n                // from WebSocket + binaryType \"blob\"\n                return data;\n            }\n            else {\n                // from HTTP long-polling or WebTransport\n                return new Blob([data]);\n            }\n        case \"arraybuffer\":\n        default:\n            if (data instanceof ArrayBuffer) {\n                // from HTTP long-polling (base64) or WebSocket + binaryType \"arraybuffer\"\n                return data;\n            }\n            else {\n                // from WebTransport (Uint8Array)\n                return data.buffer;\n            }\n    }\n};\n", "import { encodePacket, encodePacketToBinary } from \"./encodePacket.js\";\nimport { decodePacket } from \"./decodePacket.js\";\nimport { ERROR_PACKET } from \"./commons.js\";\nconst SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text\nconst encodePayload = (packets, callback) => {\n    // some packets may be added to the array while encoding, so the initial length must be saved\n    const length = packets.length;\n    const encodedPackets = new Array(length);\n    let count = 0;\n    packets.forEach((packet, i) => {\n        // force base64 encoding for binary packets\n        encodePacket(packet, false, encodedPacket => {\n            encodedPackets[i] = encodedPacket;\n            if (++count === length) {\n                callback(encodedPackets.join(SEPARATOR));\n            }\n        });\n    });\n};\nconst decodePayload = (encodedPayload, binaryType) => {\n    const encodedPackets = encodedPayload.split(SEPARATOR);\n    const packets = [];\n    for (let i = 0; i < encodedPackets.length; i++) {\n        const decodedPacket = decodePacket(encodedPackets[i], binaryType);\n        packets.push(decodedPacket);\n        if (decodedPacket.type === \"error\") {\n            break;\n        }\n    }\n    return packets;\n};\nexport function createPacketEncoderStream() {\n    return new TransformStream({\n        transform(packet, controller) {\n            encodePacketToBinary(packet, encodedPacket => {\n                const payloadLength = encodedPacket.length;\n                let header;\n                // inspired by the WebSocket format: https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API/Writing_WebSocket_servers#decoding_payload_length\n                if (payloadLength < 126) {\n                    header = new Uint8Array(1);\n                    new DataView(header.buffer).setUint8(0, payloadLength);\n                }\n                else if (payloadLength < 65536) {\n                    header = new Uint8Array(3);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 126);\n                    view.setUint16(1, payloadLength);\n                }\n                else {\n                    header = new Uint8Array(9);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 127);\n                    view.setBigUint64(1, BigInt(payloadLength));\n                }\n                // first bit indicates whether the payload is plain text (0) or binary (1)\n                if (packet.data && typeof packet.data !== \"string\") {\n                    header[0] |= 0x80;\n                }\n                controller.enqueue(header);\n                controller.enqueue(encodedPacket);\n            });\n        }\n    });\n}\nlet TEXT_DECODER;\nfunction totalLength(chunks) {\n    return chunks.reduce((acc, chunk) => acc + chunk.length, 0);\n}\nfunction concatChunks(chunks, size) {\n    if (chunks[0].length === size) {\n        return chunks.shift();\n    }\n    const buffer = new Uint8Array(size);\n    let j = 0;\n    for (let i = 0; i < size; i++) {\n        buffer[i] = chunks[0][j++];\n        if (j === chunks[0].length) {\n            chunks.shift();\n            j = 0;\n        }\n    }\n    if (chunks.length && j < chunks[0].length) {\n        chunks[0] = chunks[0].slice(j);\n    }\n    return buffer;\n}\nexport function createPacketDecoderStream(maxPayload, binaryType) {\n    if (!TEXT_DECODER) {\n        TEXT_DECODER = new TextDecoder();\n    }\n    const chunks = [];\n    let state = 0 /* READ_HEADER */;\n    let expectedLength = -1;\n    let isBinary = false;\n    return new TransformStream({\n        transform(chunk, controller) {\n            chunks.push(chunk);\n            while (true) {\n                if (state === 0 /* READ_HEADER */) {\n                    if (totalLength(chunks) < 1) {\n                        break;\n                    }\n                    const header = concatChunks(chunks, 1);\n                    isBinary = (header[0] & 0x80) === 0x80;\n                    expectedLength = header[0] & 0x7f;\n                    if (expectedLength < 126) {\n                        state = 3 /* READ_PAYLOAD */;\n                    }\n                    else if (expectedLength === 126) {\n                        state = 1 /* READ_EXTENDED_LENGTH_16 */;\n                    }\n                    else {\n                        state = 2 /* READ_EXTENDED_LENGTH_64 */;\n                    }\n                }\n                else if (state === 1 /* READ_EXTENDED_LENGTH_16 */) {\n                    if (totalLength(chunks) < 2) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 2);\n                    expectedLength = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length).getUint16(0);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else if (state === 2 /* READ_EXTENDED_LENGTH_64 */) {\n                    if (totalLength(chunks) < 8) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 8);\n                    const view = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length);\n                    const n = view.getUint32(0);\n                    if (n > Math.pow(2, 53 - 32) - 1) {\n                        // the maximum safe integer in JavaScript is 2^53 - 1\n                        controller.enqueue(ERROR_PACKET);\n                        break;\n                    }\n                    expectedLength = n * Math.pow(2, 32) + view.getUint32(4);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else {\n                    if (totalLength(chunks) < expectedLength) {\n                        break;\n                    }\n                    const data = concatChunks(chunks, expectedLength);\n                    controller.enqueue(decodePacket(isBinary ? data : TEXT_DECODER.decode(data), binaryType));\n                    state = 0 /* READ_HEADER */;\n                }\n                if (expectedLength === 0 || expectedLength > maxPayload) {\n                    controller.enqueue(ERROR_PACKET);\n                    break;\n                }\n            }\n        }\n    });\n}\nexport const protocol = 4;\nexport { encodePacket, encodePayload, decodePacket, decodePayload };\n", "/**\n * Initialize a new `Emitter`.\n *\n * @api public\n */\n\nexport function Emitter(obj) {\n  if (obj) return mixin(obj);\n}\n\n/**\n * Mixin the emitter properties.\n *\n * @param {Object} obj\n * @return {Object}\n * @api private\n */\n\nfunction mixin(obj) {\n  for (var key in Emitter.prototype) {\n    obj[key] = Emitter.prototype[key];\n  }\n  return obj;\n}\n\n/**\n * Listen on the given `event` with `fn`.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.on =\nEmitter.prototype.addEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])\n    .push(fn);\n  return this;\n};\n\n/**\n * Adds an `event` listener that will be invoked a single\n * time then automatically removed.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.once = function(event, fn){\n  function on() {\n    this.off(event, on);\n    fn.apply(this, arguments);\n  }\n\n  on.fn = fn;\n  this.on(event, on);\n  return this;\n};\n\n/**\n * Remove the given callback for `event` or all\n * registered callbacks.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.off =\nEmitter.prototype.removeListener =\nEmitter.prototype.removeAllListeners =\nEmitter.prototype.removeEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n\n  // all\n  if (0 == arguments.length) {\n    this._callbacks = {};\n    return this;\n  }\n\n  // specific event\n  var callbacks = this._callbacks['$' + event];\n  if (!callbacks) return this;\n\n  // remove all handlers\n  if (1 == arguments.length) {\n    delete this._callbacks['$' + event];\n    return this;\n  }\n\n  // remove specific handler\n  var cb;\n  for (var i = 0; i < callbacks.length; i++) {\n    cb = callbacks[i];\n    if (cb === fn || cb.fn === fn) {\n      callbacks.splice(i, 1);\n      break;\n    }\n  }\n\n  // Remove event specific arrays for event types that no\n  // one is subscribed for to avoid memory leak.\n  if (callbacks.length === 0) {\n    delete this._callbacks['$' + event];\n  }\n\n  return this;\n};\n\n/**\n * Emit `event` with the given args.\n *\n * @param {String} event\n * @param {Mixed} ...\n * @return {Emitter}\n */\n\nEmitter.prototype.emit = function(event){\n  this._callbacks = this._callbacks || {};\n\n  var args = new Array(arguments.length - 1)\n    , callbacks = this._callbacks['$' + event];\n\n  for (var i = 1; i < arguments.length; i++) {\n    args[i - 1] = arguments[i];\n  }\n\n  if (callbacks) {\n    callbacks = callbacks.slice(0);\n    for (var i = 0, len = callbacks.length; i < len; ++i) {\n      callbacks[i].apply(this, args);\n    }\n  }\n\n  return this;\n};\n\n// alias used for reserved events (protected method)\nEmitter.prototype.emitReserved = Emitter.prototype.emit;\n\n/**\n * Return array of callbacks for `event`.\n *\n * @param {String} event\n * @return {Array}\n * @api public\n */\n\nEmitter.prototype.listeners = function(event){\n  this._callbacks = this._callbacks || {};\n  return this._callbacks['$' + event] || [];\n};\n\n/**\n * Check if this emitter has `event` handlers.\n *\n * @param {String} event\n * @return {Boolean}\n * @api public\n */\n\nEmitter.prototype.hasListeners = function(event){\n  return !! this.listeners(event).length;\n};\n", "export const globalThisShim = (() => {\n    if (typeof self !== \"undefined\") {\n        return self;\n    }\n    else if (typeof window !== \"undefined\") {\n        return window;\n    }\n    else {\n        return Function(\"return this\")();\n    }\n})();\n", "import { globalThisShim as globalThis } from \"./globalThis.js\";\nexport function pick(obj, ...attr) {\n    return attr.reduce((acc, k) => {\n        if (obj.hasOwnProperty(k)) {\n            acc[k] = obj[k];\n        }\n        return acc;\n    }, {});\n}\n// Keep a reference to the real timeout functions so they can be used when overridden\nconst NATIVE_SET_TIMEOUT = globalThis.setTimeout;\nconst NATIVE_CLEAR_TIMEOUT = globalThis.clearTimeout;\nexport function installTimerFunctions(obj, opts) {\n    if (opts.useNativeTimers) {\n        obj.setTimeoutFn = NATIVE_SET_TIMEOUT.bind(globalThis);\n        obj.clearTimeoutFn = NATIVE_CLEAR_TIMEOUT.bind(globalThis);\n    }\n    else {\n        obj.setTimeoutFn = globalThis.setTimeout.bind(globalThis);\n        obj.clearTimeoutFn = globalThis.clearTimeout.bind(globalThis);\n    }\n}\n// base64 encoded buffers are about 33% bigger (https://en.wikipedia.org/wiki/Base64)\nconst BASE64_OVERHEAD = 1.33;\n// we could also have used `new Blob([obj]).size`, but it isn't supported in IE9\nexport function byteLength(obj) {\n    if (typeof obj === \"string\") {\n        return utf8Length(obj);\n    }\n    // arraybuffer or blob\n    return Math.ceil((obj.byteLength || obj.size) * BASE64_OVERHEAD);\n}\nfunction utf8Length(str) {\n    let c = 0, length = 0;\n    for (let i = 0, l = str.length; i < l; i++) {\n        c = str.charCodeAt(i);\n        if (c < 0x80) {\n            length += 1;\n        }\n        else if (c < 0x800) {\n            length += 2;\n        }\n        else if (c < 0xd800 || c >= 0xe000) {\n            length += 3;\n        }\n        else {\n            i++;\n            length += 4;\n        }\n    }\n    return length;\n}\n", "// imported from https://github.com/galkn/querystring\n/**\n * Compiles a querystring\n * Returns string representation of the object\n *\n * @param {Object}\n * @api private\n */\nexport function encode(obj) {\n    let str = '';\n    for (let i in obj) {\n        if (obj.hasOwnProperty(i)) {\n            if (str.length)\n                str += '&';\n            str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);\n        }\n    }\n    return str;\n}\n/**\n * Parses a simple querystring into an object\n *\n * @param {String} qs\n * @api private\n */\nexport function decode(qs) {\n    let qry = {};\n    let pairs = qs.split('&');\n    for (let i = 0, l = pairs.length; i < l; i++) {\n        let pair = pairs[i].split('=');\n        qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);\n    }\n    return qry;\n}\n", "import { decodePacket } from \"engine.io-parser\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions } from \"./util.js\";\nimport { encode } from \"./contrib/parseqs.js\";\nclass TransportError extends Error {\n    constructor(reason, description, context) {\n        super(reason);\n        this.description = description;\n        this.context = context;\n        this.type = \"TransportError\";\n    }\n}\nexport class Transport extends Emitter {\n    /**\n     * Transport abstract constructor.\n     *\n     * @param {Object} opts - options\n     * @protected\n     */\n    constructor(opts) {\n        super();\n        this.writable = false;\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.query = opts.query;\n        this.socket = opts.socket;\n    }\n    /**\n     * Emits an error.\n     *\n     * @param {String} reason\n     * @param description\n     * @param context - the error context\n     * @return {Transport} for chaining\n     * @protected\n     */\n    onError(reason, description, context) {\n        super.emitReserved(\"error\", new TransportError(reason, description, context));\n        return this;\n    }\n    /**\n     * Opens the transport.\n     */\n    open() {\n        this.readyState = \"opening\";\n        this.doOpen();\n        return this;\n    }\n    /**\n     * Closes the transport.\n     */\n    close() {\n        if (this.readyState === \"opening\" || this.readyState === \"open\") {\n            this.doClose();\n            this.onClose();\n        }\n        return this;\n    }\n    /**\n     * Sends multiple packets.\n     *\n     * @param {Array} packets\n     */\n    send(packets) {\n        if (this.readyState === \"open\") {\n            this.write(packets);\n        }\n        else {\n            // this might happen if the transport was silently closed in the beforeunload event handler\n        }\n    }\n    /**\n     * Called upon open\n     *\n     * @protected\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        this.writable = true;\n        super.emitReserved(\"open\");\n    }\n    /**\n     * Called with data.\n     *\n     * @param {String} data\n     * @protected\n     */\n    onData(data) {\n        const packet = decodePacket(data, this.socket.binaryType);\n        this.onPacket(packet);\n    }\n    /**\n     * Called with a decoded packet.\n     *\n     * @protected\n     */\n    onPacket(packet) {\n        super.emitReserved(\"packet\", packet);\n    }\n    /**\n     * Called upon close.\n     *\n     * @protected\n     */\n    onClose(details) {\n        this.readyState = \"closed\";\n        super.emitReserved(\"close\", details);\n    }\n    /**\n     * Pauses the transport, in order not to lose packets during an upgrade.\n     *\n     * @param onPause\n     */\n    pause(onPause) { }\n    createUri(schema, query = {}) {\n        return (schema +\n            \"://\" +\n            this._hostname() +\n            this._port() +\n            this.opts.path +\n            this._query(query));\n    }\n    _hostname() {\n        const hostname = this.opts.hostname;\n        return hostname.indexOf(\":\") === -1 ? hostname : \"[\" + hostname + \"]\";\n    }\n    _port() {\n        if (this.opts.port &&\n            ((this.opts.secure && Number(this.opts.port !== 443)) ||\n                (!this.opts.secure && Number(this.opts.port) !== 80))) {\n            return \":\" + this.opts.port;\n        }\n        else {\n            return \"\";\n        }\n    }\n    _query(query) {\n        const encodedQuery = encode(query);\n        return encodedQuery.length ? \"?\" + encodedQuery : \"\";\n    }\n}\n", "// imported from https://github.com/unshiftio/yeast\n'use strict';\nconst alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split(''), length = 64, map = {};\nlet seed = 0, i = 0, prev;\n/**\n * Return a string representing the specified number.\n *\n * @param {Number} num The number to convert.\n * @returns {String} The string representation of the number.\n * @api public\n */\nexport function encode(num) {\n    let encoded = '';\n    do {\n        encoded = alphabet[num % length] + encoded;\n        num = Math.floor(num / length);\n    } while (num > 0);\n    return encoded;\n}\n/**\n * Return the integer value specified by the given string.\n *\n * @param {String} str The string to convert.\n * @returns {Number} The integer value represented by the string.\n * @api public\n */\nexport function decode(str) {\n    let decoded = 0;\n    for (i = 0; i < str.length; i++) {\n        decoded = decoded * length + map[str.charAt(i)];\n    }\n    return decoded;\n}\n/**\n * Yeast: A tiny growing id generator.\n *\n * @returns {String} A unique id.\n * @api public\n */\nexport function yeast() {\n    const now = encode(+new Date());\n    if (now !== prev)\n        return seed = 0, prev = now;\n    return now + '.' + encode(seed++);\n}\n//\n// Map each character to its index.\n//\nfor (; i < length; i++)\n    map[alphabet[i]] = i;\n", "// imported from https://github.com/component/has-cors\nlet value = false;\ntry {\n    value = typeof XMLHttpRequest !== 'undefined' &&\n        'withCredentials' in new XMLHttpRequest();\n}\ncatch (err) {\n    // if XMLHttp support is disabled in IE then it will throw\n    // when trying to create\n}\nexport const hasCORS = value;\n", "// browser shim for xmlhttprequest module\nimport { hasCORS } from \"../contrib/has-cors.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nexport function XHR(opts) {\n    const xdomain = opts.xdomain;\n    // XMLHttpRequest can be disabled on IE\n    try {\n        if (\"undefined\" !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {\n            return new XMLHttpRequest();\n        }\n    }\n    catch (e) { }\n    if (!xdomain) {\n        try {\n            return new globalThis[[\"Active\"].concat(\"Object\").join(\"X\")](\"Microsoft.XMLHTTP\");\n        }\n        catch (e) { }\n    }\n}\nexport function createCookieJar() { }\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { encodePayload, decodePayload } from \"engine.io-parser\";\nimport { createCookieJar, XHR as XMLHttpRequest, } from \"./xmlhttprequest.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions, pick } from \"../util.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nfunction empty() { }\nconst hasXHR2 = (function () {\n    const xhr = new XMLHttpRequest({\n        xdomain: false,\n    });\n    return null != xhr.responseType;\n})();\nexport class Polling extends Transport {\n    /**\n     * XHR Polling constructor.\n     *\n     * @param {Object} opts\n     * @package\n     */\n    constructor(opts) {\n        super(opts);\n        this.polling = false;\n        if (typeof location !== \"undefined\") {\n            const isSSL = \"https:\" === location.protocol;\n            let port = location.port;\n            // some user agents have empty `location.port`\n            if (!port) {\n                port = isSSL ? \"443\" : \"80\";\n            }\n            this.xd =\n                (typeof location !== \"undefined\" &&\n                    opts.hostname !== location.hostname) ||\n                    port !== opts.port;\n        }\n        /**\n         * XHR supports binary\n         */\n        const forceBase64 = opts && opts.forceBase64;\n        this.supportsBinary = hasXHR2 && !forceBase64;\n        if (this.opts.withCredentials) {\n            this.cookieJar = createCookieJar();\n        }\n    }\n    get name() {\n        return \"polling\";\n    }\n    /**\n     * Opens the socket (triggers polling). We write a PING message to determine\n     * when the transport is open.\n     *\n     * @protected\n     */\n    doOpen() {\n        this.poll();\n    }\n    /**\n     * Pauses polling.\n     *\n     * @param {Function} onPause - callback upon buffers are flushed and transport is paused\n     * @package\n     */\n    pause(onPause) {\n        this.readyState = \"pausing\";\n        const pause = () => {\n            this.readyState = \"paused\";\n            onPause();\n        };\n        if (this.polling || !this.writable) {\n            let total = 0;\n            if (this.polling) {\n                total++;\n                this.once(\"pollComplete\", function () {\n                    --total || pause();\n                });\n            }\n            if (!this.writable) {\n                total++;\n                this.once(\"drain\", function () {\n                    --total || pause();\n                });\n            }\n        }\n        else {\n            pause();\n        }\n    }\n    /**\n     * Starts polling cycle.\n     *\n     * @private\n     */\n    poll() {\n        this.polling = true;\n        this.doPoll();\n        this.emitReserved(\"poll\");\n    }\n    /**\n     * Overloads onData to detect payloads.\n     *\n     * @protected\n     */\n    onData(data) {\n        const callback = (packet) => {\n            // if its the first message we consider the transport open\n            if (\"opening\" === this.readyState && packet.type === \"open\") {\n                this.onOpen();\n            }\n            // if its a close packet, we close the ongoing requests\n            if (\"close\" === packet.type) {\n                this.onClose({ description: \"transport closed by the server\" });\n                return false;\n            }\n            // otherwise bypass onData and handle the message\n            this.onPacket(packet);\n        };\n        // decode payload\n        decodePayload(data, this.socket.binaryType).forEach(callback);\n        // if an event did not trigger closing\n        if (\"closed\" !== this.readyState) {\n            // if we got data we're not polling\n            this.polling = false;\n            this.emitReserved(\"pollComplete\");\n            if (\"open\" === this.readyState) {\n                this.poll();\n            }\n            else {\n            }\n        }\n    }\n    /**\n     * For polling, send a close packet.\n     *\n     * @protected\n     */\n    doClose() {\n        const close = () => {\n            this.write([{ type: \"close\" }]);\n        };\n        if (\"open\" === this.readyState) {\n            close();\n        }\n        else {\n            // in case we're trying to close while\n            // handshaking is in progress (GH-164)\n            this.once(\"open\", close);\n        }\n    }\n    /**\n     * Writes a packets payload.\n     *\n     * @param {Array} packets - data packets\n     * @protected\n     */\n    write(packets) {\n        this.writable = false;\n        encodePayload(packets, (data) => {\n            this.doWrite(data, () => {\n                this.writable = true;\n                this.emitReserved(\"drain\");\n            });\n        });\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"https\" : \"http\";\n        const query = this.query || {};\n        // cache busting is forced\n        if (false !== this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        if (!this.supportsBinary && !query.sid) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Creates a request.\n     *\n     * @param {String} method\n     * @private\n     */\n    request(opts = {}) {\n        Object.assign(opts, { xd: this.xd, cookieJar: this.cookieJar }, this.opts);\n        return new Request(this.uri(), opts);\n    }\n    /**\n     * Sends data.\n     *\n     * @param {String} data to send.\n     * @param {Function} called upon flush.\n     * @private\n     */\n    doWrite(data, fn) {\n        const req = this.request({\n            method: \"POST\",\n            data: data,\n        });\n        req.on(\"success\", fn);\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr post error\", xhrStatus, context);\n        });\n    }\n    /**\n     * Starts a poll cycle.\n     *\n     * @private\n     */\n    doPoll() {\n        const req = this.request();\n        req.on(\"data\", this.onData.bind(this));\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr poll error\", xhrStatus, context);\n        });\n        this.pollXhr = req;\n    }\n}\nexport class Request extends Emitter {\n    /**\n     * Request constructor\n     *\n     * @param {Object} options\n     * @package\n     */\n    constructor(uri, opts) {\n        super();\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.method = opts.method || \"GET\";\n        this.uri = uri;\n        this.data = undefined !== opts.data ? opts.data : null;\n        this.create();\n    }\n    /**\n     * Creates the XHR object and sends the request.\n     *\n     * @private\n     */\n    create() {\n        var _a;\n        const opts = pick(this.opts, \"agent\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"autoUnref\");\n        opts.xdomain = !!this.opts.xd;\n        const xhr = (this.xhr = new XMLHttpRequest(opts));\n        try {\n            xhr.open(this.method, this.uri, true);\n            try {\n                if (this.opts.extraHeaders) {\n                    xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);\n                    for (let i in this.opts.extraHeaders) {\n                        if (this.opts.extraHeaders.hasOwnProperty(i)) {\n                            xhr.setRequestHeader(i, this.opts.extraHeaders[i]);\n                        }\n                    }\n                }\n            }\n            catch (e) { }\n            if (\"POST\" === this.method) {\n                try {\n                    xhr.setRequestHeader(\"Content-type\", \"text/plain;charset=UTF-8\");\n                }\n                catch (e) { }\n            }\n            try {\n                xhr.setRequestHeader(\"Accept\", \"*/*\");\n            }\n            catch (e) { }\n            (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.addCookies(xhr);\n            // ie6 check\n            if (\"withCredentials\" in xhr) {\n                xhr.withCredentials = this.opts.withCredentials;\n            }\n            if (this.opts.requestTimeout) {\n                xhr.timeout = this.opts.requestTimeout;\n            }\n            xhr.onreadystatechange = () => {\n                var _a;\n                if (xhr.readyState === 3) {\n                    (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.parseCookies(xhr);\n                }\n                if (4 !== xhr.readyState)\n                    return;\n                if (200 === xhr.status || 1223 === xhr.status) {\n                    this.onLoad();\n                }\n                else {\n                    // make sure the `error` event handler that's user-set\n                    // does not throw in the same tick and gets caught here\n                    this.setTimeoutFn(() => {\n                        this.onError(typeof xhr.status === \"number\" ? xhr.status : 0);\n                    }, 0);\n                }\n            };\n            xhr.send(this.data);\n        }\n        catch (e) {\n            // Need to defer since .create() is called directly from the constructor\n            // and thus the 'error' event can only be only bound *after* this exception\n            // occurs.  Therefore, also, we cannot throw here at all.\n            this.setTimeoutFn(() => {\n                this.onError(e);\n            }, 0);\n            return;\n        }\n        if (typeof document !== \"undefined\") {\n            this.index = Request.requestsCount++;\n            Request.requests[this.index] = this;\n        }\n    }\n    /**\n     * Called upon error.\n     *\n     * @private\n     */\n    onError(err) {\n        this.emitReserved(\"error\", err, this.xhr);\n        this.cleanup(true);\n    }\n    /**\n     * Cleans up house.\n     *\n     * @private\n     */\n    cleanup(fromError) {\n        if (\"undefined\" === typeof this.xhr || null === this.xhr) {\n            return;\n        }\n        this.xhr.onreadystatechange = empty;\n        if (fromError) {\n            try {\n                this.xhr.abort();\n            }\n            catch (e) { }\n        }\n        if (typeof document !== \"undefined\") {\n            delete Request.requests[this.index];\n        }\n        this.xhr = null;\n    }\n    /**\n     * Called upon load.\n     *\n     * @private\n     */\n    onLoad() {\n        const data = this.xhr.responseText;\n        if (data !== null) {\n            this.emitReserved(\"data\", data);\n            this.emitReserved(\"success\");\n            this.cleanup();\n        }\n    }\n    /**\n     * Aborts the request.\n     *\n     * @package\n     */\n    abort() {\n        this.cleanup();\n    }\n}\nRequest.requestsCount = 0;\nRequest.requests = {};\n/**\n * Aborts pending requests when unloading the window. This is needed to prevent\n * memory leaks (e.g. when using IE) and to ensure that no spurious error is\n * emitted.\n */\nif (typeof document !== \"undefined\") {\n    // @ts-ignore\n    if (typeof attachEvent === \"function\") {\n        // @ts-ignore\n        attachEvent(\"onunload\", unloadHandler);\n    }\n    else if (typeof addEventListener === \"function\") {\n        const terminationEvent = \"onpagehide\" in globalThis ? \"pagehide\" : \"unload\";\n        addEventListener(terminationEvent, unloadHandler, false);\n    }\n}\nfunction unloadHandler() {\n    for (let i in Request.requests) {\n        if (Request.requests.hasOwnProperty(i)) {\n            Request.requests[i].abort();\n        }\n    }\n}\n", "import { globalThisShim as globalThis } from \"../globalThis.js\";\nexport const nextTick = (() => {\n    const isPromiseAvailable = typeof Promise === \"function\" && typeof Promise.resolve === \"function\";\n    if (isPromiseAvailable) {\n        return (cb) => Promise.resolve().then(cb);\n    }\n    else {\n        return (cb, setTimeoutFn) => setTimeoutFn(cb, 0);\n    }\n})();\nexport const WebSocket = globalThis.WebSocket || globalThis.MozWebSocket;\nexport const usingBrowserWebSocket = true;\nexport const defaultBinaryType = \"arraybuffer\";\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { pick } from \"../util.js\";\nimport { nextTick, usingBrowserWebSocket, WebSocket, } from \"./websocket-constructor.js\";\nimport { encodePacket } from \"engine.io-parser\";\n// detect ReactNative environment\nconst isReactNative = typeof navigator !== \"undefined\" &&\n    typeof navigator.product === \"string\" &&\n    navigator.product.toLowerCase() === \"reactnative\";\nexport class WS extends Transport {\n    /**\n     * WebSocket transport constructor.\n     *\n     * @param {Object} opts - connection options\n     * @protected\n     */\n    constructor(opts) {\n        super(opts);\n        this.supportsBinary = !opts.forceBase64;\n    }\n    get name() {\n        return \"websocket\";\n    }\n    doOpen() {\n        if (!this.check()) {\n            // let probe timeout\n            return;\n        }\n        const uri = this.uri();\n        const protocols = this.opts.protocols;\n        // React Native only supports the 'headers' option, and will print a warning if anything else is passed\n        const opts = isReactNative\n            ? {}\n            : pick(this.opts, \"agent\", \"perMessageDeflate\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"localAddress\", \"protocolVersion\", \"origin\", \"maxPayload\", \"family\", \"checkServerIdentity\");\n        if (this.opts.extraHeaders) {\n            opts.headers = this.opts.extraHeaders;\n        }\n        try {\n            this.ws =\n                usingBrowserWebSocket && !isReactNative\n                    ? protocols\n                        ? new WebSocket(uri, protocols)\n                        : new WebSocket(uri)\n                    : new WebSocket(uri, protocols, opts);\n        }\n        catch (err) {\n            return this.emitReserved(\"error\", err);\n        }\n        this.ws.binaryType = this.socket.binaryType;\n        this.addEventListeners();\n    }\n    /**\n     * Adds event listeners to the socket\n     *\n     * @private\n     */\n    addEventListeners() {\n        this.ws.onopen = () => {\n            if (this.opts.autoUnref) {\n                this.ws._socket.unref();\n            }\n            this.onOpen();\n        };\n        this.ws.onclose = (closeEvent) => this.onClose({\n            description: \"websocket connection closed\",\n            context: closeEvent,\n        });\n        this.ws.onmessage = (ev) => this.onData(ev.data);\n        this.ws.onerror = (e) => this.onError(\"websocket error\", e);\n    }\n    write(packets) {\n        this.writable = false;\n        // encodePacket efficient as it uses WS framing\n        // no need for encodePayload\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            encodePacket(packet, this.supportsBinary, (data) => {\n                // always create a new object (GH-437)\n                const opts = {};\n                if (!usingBrowserWebSocket) {\n                    if (packet.options) {\n                        opts.compress = packet.options.compress;\n                    }\n                    if (this.opts.perMessageDeflate) {\n                        const len = \n                        // @ts-ignore\n                        \"string\" === typeof data ? Buffer.byteLength(data) : data.length;\n                        if (len < this.opts.perMessageDeflate.threshold) {\n                            opts.compress = false;\n                        }\n                    }\n                }\n                // Sometimes the websocket has already been closed but the browser didn't\n                // have a chance of informing us about it yet, in that case send will\n                // throw an error\n                try {\n                    if (usingBrowserWebSocket) {\n                        // TypeError is thrown when passing the second argument on Safari\n                        this.ws.send(data);\n                    }\n                    else {\n                        this.ws.send(data, opts);\n                    }\n                }\n                catch (e) {\n                }\n                if (lastPacket) {\n                    // fake drain\n                    // defer to next tick to allow Socket to clear writeBuffer\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        if (typeof this.ws !== \"undefined\") {\n            this.ws.close();\n            this.ws = null;\n        }\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"wss\" : \"ws\";\n        const query = this.query || {};\n        // append timestamp to URI\n        if (this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        // communicate binary support capabilities\n        if (!this.supportsBinary) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Feature detection for WebSocket.\n     *\n     * @return {Boolean} whether this transport is available.\n     * @private\n     */\n    check() {\n        return !!WebSocket;\n    }\n}\n", "import { Transport } from \"../transport.js\";\nimport { nextTick } from \"./websocket-constructor.js\";\nimport { createPacketDecoderStream, createPacketEncoderStream, } from \"engine.io-parser\";\nexport class WT extends Transport {\n    get name() {\n        return \"webtransport\";\n    }\n    doOpen() {\n        // @ts-ignore\n        if (typeof WebTransport !== \"function\") {\n            return;\n        }\n        // @ts-ignore\n        this.transport = new WebTransport(this.createUri(\"https\"), this.opts.transportOptions[this.name]);\n        this.transport.closed\n            .then(() => {\n            this.onClose();\n        })\n            .catch((err) => {\n            this.onError(\"webtransport error\", err);\n        });\n        // note: we could have used async/await, but that would require some additional polyfills\n        this.transport.ready.then(() => {\n            this.transport.createBidirectionalStream().then((stream) => {\n                const decoderStream = createPacketDecoderStream(Number.MAX_SAFE_INTEGER, this.socket.binaryType);\n                const reader = stream.readable.pipeThrough(decoderStream).getReader();\n                const encoderStream = createPacketEncoderStream();\n                encoderStream.readable.pipeTo(stream.writable);\n                this.writer = encoderStream.writable.getWriter();\n                const read = () => {\n                    reader\n                        .read()\n                        .then(({ done, value }) => {\n                        if (done) {\n                            return;\n                        }\n                        this.onPacket(value);\n                        read();\n                    })\n                        .catch((err) => {\n                    });\n                };\n                read();\n                const packet = { type: \"open\" };\n                if (this.query.sid) {\n                    packet.data = `{\"sid\":\"${this.query.sid}\"}`;\n                }\n                this.writer.write(packet).then(() => this.onOpen());\n            });\n        });\n    }\n    write(packets) {\n        this.writable = false;\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            this.writer.write(packet).then(() => {\n                if (lastPacket) {\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        var _a;\n        (_a = this.transport) === null || _a === void 0 ? void 0 : _a.close();\n    }\n}\n", "import { Polling } from \"./polling.js\";\nimport { WS } from \"./websocket.js\";\nimport { WT } from \"./webtransport.js\";\nexport const transports = {\n    websocket: WS,\n    webtransport: WT,\n    polling: Polling,\n};\n", "// imported from https://github.com/galkn/parseuri\n/**\n * Parses a URI\n *\n * Note: we could also have used the built-in URL object, but it isn't supported on all platforms.\n *\n * See:\n * - https://developer.mozilla.org/en-US/docs/Web/API/URL\n * - https://caniuse.com/url\n * - https://www.rfc-editor.org/rfc/rfc3986#appendix-B\n *\n * History of the parse() method:\n * - first commit: https://github.com/socketio/socket.io-client/commit/4ee1d5d94b3906a9c052b459f1a818b15f38f91c\n * - export into its own module: https://github.com/socketio/engine.io-client/commit/de2c561e4564efeb78f1bdb1ba39ef81b2822cb3\n * - reimport: https://github.com/socketio/engine.io-client/commit/df32277c3f6d622eec5ed09f493cae3f3391d242\n *\n * @author Steven Levithan <stevenlevithan.com> (MIT license)\n * @api private\n */\nconst re = /^(?:(?![^:@\\/?#]+:[^:@\\/]*@)(http|https|ws|wss):\\/\\/)?((?:(([^:@\\/?#]*)(?::([^:@\\/?#]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\\/?#]*)(?::(\\d*))?)(((\\/(?:[^?#](?![^?#\\/]*\\.[^?#\\/.]+(?:[?#]|$)))*\\/?)?([^?#\\/]*))(?:\\?([^#]*))?(?:#(.*))?)/;\nconst parts = [\n    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'\n];\nexport function parse(str) {\n    const src = str, b = str.indexOf('['), e = str.indexOf(']');\n    if (b != -1 && e != -1) {\n        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);\n    }\n    let m = re.exec(str || ''), uri = {}, i = 14;\n    while (i--) {\n        uri[parts[i]] = m[i] || '';\n    }\n    if (b != -1 && e != -1) {\n        uri.source = src;\n        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');\n        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');\n        uri.ipv6uri = true;\n    }\n    uri.pathNames = pathNames(uri, uri['path']);\n    uri.queryKey = queryKey(uri, uri['query']);\n    return uri;\n}\nfunction pathNames(obj, path) {\n    const regx = /\\/{2,9}/g, names = path.replace(regx, \"/\").split(\"/\");\n    if (path.slice(0, 1) == '/' || path.length === 0) {\n        names.splice(0, 1);\n    }\n    if (path.slice(-1) == '/') {\n        names.splice(names.length - 1, 1);\n    }\n    return names;\n}\nfunction queryKey(uri, query) {\n    const data = {};\n    query.replace(/(?:^|&)([^&=]*)=?([^&]*)/g, function ($0, $1, $2) {\n        if ($1) {\n            data[$1] = $2;\n        }\n    });\n    return data;\n}\n", "import { transports } from \"./transports/index.js\";\nimport { installTimerFunctions, byteLength } from \"./util.js\";\nimport { decode } from \"./contrib/parseqs.js\";\nimport { parse } from \"./contrib/parseuri.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { protocol } from \"engine.io-parser\";\nimport { defaultBinaryType } from \"./transports/websocket-constructor.js\";\nexport class Socket extends Emitter {\n    /**\n     * Socket constructor.\n     *\n     * @param {String|Object} uri - uri or options\n     * @param {Object} opts - options\n     */\n    constructor(uri, opts = {}) {\n        super();\n        this.binaryType = defaultBinaryType;\n        this.writeBuffer = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = null;\n        }\n        if (uri) {\n            uri = parse(uri);\n            opts.hostname = uri.host;\n            opts.secure = uri.protocol === \"https\" || uri.protocol === \"wss\";\n            opts.port = uri.port;\n            if (uri.query)\n                opts.query = uri.query;\n        }\n        else if (opts.host) {\n            opts.hostname = parse(opts.host).host;\n        }\n        installTimerFunctions(this, opts);\n        this.secure =\n            null != opts.secure\n                ? opts.secure\n                : typeof location !== \"undefined\" && \"https:\" === location.protocol;\n        if (opts.hostname && !opts.port) {\n            // if no port is specified manually, use the protocol default\n            opts.port = this.secure ? \"443\" : \"80\";\n        }\n        this.hostname =\n            opts.hostname ||\n                (typeof location !== \"undefined\" ? location.hostname : \"localhost\");\n        this.port =\n            opts.port ||\n                (typeof location !== \"undefined\" && location.port\n                    ? location.port\n                    : this.secure\n                        ? \"443\"\n                        : \"80\");\n        this.transports = opts.transports || [\n            \"polling\",\n            \"websocket\",\n            \"webtransport\",\n        ];\n        this.writeBuffer = [];\n        this.prevBufferLen = 0;\n        this.opts = Object.assign({\n            path: \"/engine.io\",\n            agent: false,\n            withCredentials: false,\n            upgrade: true,\n            timestampParam: \"t\",\n            rememberUpgrade: false,\n            addTrailingSlash: true,\n            rejectUnauthorized: true,\n            perMessageDeflate: {\n                threshold: 1024,\n            },\n            transportOptions: {},\n            closeOnBeforeunload: false,\n        }, opts);\n        this.opts.path =\n            this.opts.path.replace(/\\/$/, \"\") +\n                (this.opts.addTrailingSlash ? \"/\" : \"\");\n        if (typeof this.opts.query === \"string\") {\n            this.opts.query = decode(this.opts.query);\n        }\n        // set on handshake\n        this.id = null;\n        this.upgrades = null;\n        this.pingInterval = null;\n        this.pingTimeout = null;\n        // set on heartbeat\n        this.pingTimeoutTimer = null;\n        if (typeof addEventListener === \"function\") {\n            if (this.opts.closeOnBeforeunload) {\n                // Firefox closes the connection when the \"beforeunload\" event is emitted but not Chrome. This event listener\n                // ensures every browser behaves the same (no \"disconnect\" event at the Socket.IO level when the page is\n                // closed/reloaded)\n                this.beforeunloadEventListener = () => {\n                    if (this.transport) {\n                        // silently close the transport\n                        this.transport.removeAllListeners();\n                        this.transport.close();\n                    }\n                };\n                addEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n            }\n            if (this.hostname !== \"localhost\") {\n                this.offlineEventListener = () => {\n                    this.onClose(\"transport close\", {\n                        description: \"network connection lost\",\n                    });\n                };\n                addEventListener(\"offline\", this.offlineEventListener, false);\n            }\n        }\n        this.open();\n    }\n    /**\n     * Creates transport of the given type.\n     *\n     * @param {String} name - transport name\n     * @return {Transport}\n     * @private\n     */\n    createTransport(name) {\n        const query = Object.assign({}, this.opts.query);\n        // append engine.io protocol identifier\n        query.EIO = protocol;\n        // transport name\n        query.transport = name;\n        // session id if we already have one\n        if (this.id)\n            query.sid = this.id;\n        const opts = Object.assign({}, this.opts, {\n            query,\n            socket: this,\n            hostname: this.hostname,\n            secure: this.secure,\n            port: this.port,\n        }, this.opts.transportOptions[name]);\n        return new transports[name](opts);\n    }\n    /**\n     * Initializes transport to use and starts probe.\n     *\n     * @private\n     */\n    open() {\n        let transport;\n        if (this.opts.rememberUpgrade &&\n            Socket.priorWebsocketSuccess &&\n            this.transports.indexOf(\"websocket\") !== -1) {\n            transport = \"websocket\";\n        }\n        else if (0 === this.transports.length) {\n            // Emit error on next tick so it can be listened to\n            this.setTimeoutFn(() => {\n                this.emitReserved(\"error\", \"No transports available\");\n            }, 0);\n            return;\n        }\n        else {\n            transport = this.transports[0];\n        }\n        this.readyState = \"opening\";\n        // Retry with the next transport if the transport is disabled (jsonp: false)\n        try {\n            transport = this.createTransport(transport);\n        }\n        catch (e) {\n            this.transports.shift();\n            this.open();\n            return;\n        }\n        transport.open();\n        this.setTransport(transport);\n    }\n    /**\n     * Sets the current transport. Disables the existing one (if any).\n     *\n     * @private\n     */\n    setTransport(transport) {\n        if (this.transport) {\n            this.transport.removeAllListeners();\n        }\n        // set up transport\n        this.transport = transport;\n        // set up transport listeners\n        transport\n            .on(\"drain\", this.onDrain.bind(this))\n            .on(\"packet\", this.onPacket.bind(this))\n            .on(\"error\", this.onError.bind(this))\n            .on(\"close\", (reason) => this.onClose(\"transport close\", reason));\n    }\n    /**\n     * Probes a transport.\n     *\n     * @param {String} name - transport name\n     * @private\n     */\n    probe(name) {\n        let transport = this.createTransport(name);\n        let failed = false;\n        Socket.priorWebsocketSuccess = false;\n        const onTransportOpen = () => {\n            if (failed)\n                return;\n            transport.send([{ type: \"ping\", data: \"probe\" }]);\n            transport.once(\"packet\", (msg) => {\n                if (failed)\n                    return;\n                if (\"pong\" === msg.type && \"probe\" === msg.data) {\n                    this.upgrading = true;\n                    this.emitReserved(\"upgrading\", transport);\n                    if (!transport)\n                        return;\n                    Socket.priorWebsocketSuccess = \"websocket\" === transport.name;\n                    this.transport.pause(() => {\n                        if (failed)\n                            return;\n                        if (\"closed\" === this.readyState)\n                            return;\n                        cleanup();\n                        this.setTransport(transport);\n                        transport.send([{ type: \"upgrade\" }]);\n                        this.emitReserved(\"upgrade\", transport);\n                        transport = null;\n                        this.upgrading = false;\n                        this.flush();\n                    });\n                }\n                else {\n                    const err = new Error(\"probe error\");\n                    // @ts-ignore\n                    err.transport = transport.name;\n                    this.emitReserved(\"upgradeError\", err);\n                }\n            });\n        };\n        function freezeTransport() {\n            if (failed)\n                return;\n            // Any callback called by transport should be ignored since now\n            failed = true;\n            cleanup();\n            transport.close();\n            transport = null;\n        }\n        // Handle any error that happens while probing\n        const onerror = (err) => {\n            const error = new Error(\"probe error: \" + err);\n            // @ts-ignore\n            error.transport = transport.name;\n            freezeTransport();\n            this.emitReserved(\"upgradeError\", error);\n        };\n        function onTransportClose() {\n            onerror(\"transport closed\");\n        }\n        // When the socket is closed while we're probing\n        function onclose() {\n            onerror(\"socket closed\");\n        }\n        // When the socket is upgraded while we're probing\n        function onupgrade(to) {\n            if (transport && to.name !== transport.name) {\n                freezeTransport();\n            }\n        }\n        // Remove all listeners on the transport and on self\n        const cleanup = () => {\n            transport.removeListener(\"open\", onTransportOpen);\n            transport.removeListener(\"error\", onerror);\n            transport.removeListener(\"close\", onTransportClose);\n            this.off(\"close\", onclose);\n            this.off(\"upgrading\", onupgrade);\n        };\n        transport.once(\"open\", onTransportOpen);\n        transport.once(\"error\", onerror);\n        transport.once(\"close\", onTransportClose);\n        this.once(\"close\", onclose);\n        this.once(\"upgrading\", onupgrade);\n        if (this.upgrades.indexOf(\"webtransport\") !== -1 &&\n            name !== \"webtransport\") {\n            // favor WebTransport\n            this.setTimeoutFn(() => {\n                if (!failed) {\n                    transport.open();\n                }\n            }, 200);\n        }\n        else {\n            transport.open();\n        }\n    }\n    /**\n     * Called when connection is deemed open.\n     *\n     * @private\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        Socket.priorWebsocketSuccess = \"websocket\" === this.transport.name;\n        this.emitReserved(\"open\");\n        this.flush();\n        // we check for `readyState` in case an `open`\n        // listener already closed the socket\n        if (\"open\" === this.readyState && this.opts.upgrade) {\n            let i = 0;\n            const l = this.upgrades.length;\n            for (; i < l; i++) {\n                this.probe(this.upgrades[i]);\n            }\n        }\n    }\n    /**\n     * Handles a packet.\n     *\n     * @private\n     */\n    onPacket(packet) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            this.emitReserved(\"packet\", packet);\n            // Socket is live - any packet counts\n            this.emitReserved(\"heartbeat\");\n            this.resetPingTimeout();\n            switch (packet.type) {\n                case \"open\":\n                    this.onHandshake(JSON.parse(packet.data));\n                    break;\n                case \"ping\":\n                    this.sendPacket(\"pong\");\n                    this.emitReserved(\"ping\");\n                    this.emitReserved(\"pong\");\n                    break;\n                case \"error\":\n                    const err = new Error(\"server error\");\n                    // @ts-ignore\n                    err.code = packet.data;\n                    this.onError(err);\n                    break;\n                case \"message\":\n                    this.emitReserved(\"data\", packet.data);\n                    this.emitReserved(\"message\", packet.data);\n                    break;\n            }\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon handshake completion.\n     *\n     * @param {Object} data - handshake obj\n     * @private\n     */\n    onHandshake(data) {\n        this.emitReserved(\"handshake\", data);\n        this.id = data.sid;\n        this.transport.query.sid = data.sid;\n        this.upgrades = this.filterUpgrades(data.upgrades);\n        this.pingInterval = data.pingInterval;\n        this.pingTimeout = data.pingTimeout;\n        this.maxPayload = data.maxPayload;\n        this.onOpen();\n        // In case open handler closes socket\n        if (\"closed\" === this.readyState)\n            return;\n        this.resetPingTimeout();\n    }\n    /**\n     * Sets and resets ping timeout timer based on server pings.\n     *\n     * @private\n     */\n    resetPingTimeout() {\n        this.clearTimeoutFn(this.pingTimeoutTimer);\n        this.pingTimeoutTimer = this.setTimeoutFn(() => {\n            this.onClose(\"ping timeout\");\n        }, this.pingInterval + this.pingTimeout);\n        if (this.opts.autoUnref) {\n            this.pingTimeoutTimer.unref();\n        }\n    }\n    /**\n     * Called on `drain` event\n     *\n     * @private\n     */\n    onDrain() {\n        this.writeBuffer.splice(0, this.prevBufferLen);\n        // setting prevBufferLen = 0 is very important\n        // for example, when upgrading, upgrade packet is sent over,\n        // and a nonzero prevBufferLen could cause problems on `drain`\n        this.prevBufferLen = 0;\n        if (0 === this.writeBuffer.length) {\n            this.emitReserved(\"drain\");\n        }\n        else {\n            this.flush();\n        }\n    }\n    /**\n     * Flush write buffers.\n     *\n     * @private\n     */\n    flush() {\n        if (\"closed\" !== this.readyState &&\n            this.transport.writable &&\n            !this.upgrading &&\n            this.writeBuffer.length) {\n            const packets = this.getWritablePackets();\n            this.transport.send(packets);\n            // keep track of current length of writeBuffer\n            // splice writeBuffer and callbackBuffer on `drain`\n            this.prevBufferLen = packets.length;\n            this.emitReserved(\"flush\");\n        }\n    }\n    /**\n     * Ensure the encoded size of the writeBuffer is below the maxPayload value sent by the server (only for HTTP\n     * long-polling)\n     *\n     * @private\n     */\n    getWritablePackets() {\n        const shouldCheckPayloadSize = this.maxPayload &&\n            this.transport.name === \"polling\" &&\n            this.writeBuffer.length > 1;\n        if (!shouldCheckPayloadSize) {\n            return this.writeBuffer;\n        }\n        let payloadSize = 1; // first packet type\n        for (let i = 0; i < this.writeBuffer.length; i++) {\n            const data = this.writeBuffer[i].data;\n            if (data) {\n                payloadSize += byteLength(data);\n            }\n            if (i > 0 && payloadSize > this.maxPayload) {\n                return this.writeBuffer.slice(0, i);\n            }\n            payloadSize += 2; // separator + packet type\n        }\n        return this.writeBuffer;\n    }\n    /**\n     * Sends a message.\n     *\n     * @param {String} msg - message.\n     * @param {Object} options.\n     * @param {Function} callback function.\n     * @return {Socket} for chaining.\n     */\n    write(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    send(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param {String} type: packet type.\n     * @param {String} data.\n     * @param {Object} options.\n     * @param {Function} fn - callback function.\n     * @private\n     */\n    sendPacket(type, data, options, fn) {\n        if (\"function\" === typeof data) {\n            fn = data;\n            data = undefined;\n        }\n        if (\"function\" === typeof options) {\n            fn = options;\n            options = null;\n        }\n        if (\"closing\" === this.readyState || \"closed\" === this.readyState) {\n            return;\n        }\n        options = options || {};\n        options.compress = false !== options.compress;\n        const packet = {\n            type: type,\n            data: data,\n            options: options,\n        };\n        this.emitReserved(\"packetCreate\", packet);\n        this.writeBuffer.push(packet);\n        if (fn)\n            this.once(\"flush\", fn);\n        this.flush();\n    }\n    /**\n     * Closes the connection.\n     */\n    close() {\n        const close = () => {\n            this.onClose(\"forced close\");\n            this.transport.close();\n        };\n        const cleanupAndClose = () => {\n            this.off(\"upgrade\", cleanupAndClose);\n            this.off(\"upgradeError\", cleanupAndClose);\n            close();\n        };\n        const waitForUpgrade = () => {\n            // wait for upgrade to finish since we can't send packets while pausing a transport\n            this.once(\"upgrade\", cleanupAndClose);\n            this.once(\"upgradeError\", cleanupAndClose);\n        };\n        if (\"opening\" === this.readyState || \"open\" === this.readyState) {\n            this.readyState = \"closing\";\n            if (this.writeBuffer.length) {\n                this.once(\"drain\", () => {\n                    if (this.upgrading) {\n                        waitForUpgrade();\n                    }\n                    else {\n                        close();\n                    }\n                });\n            }\n            else if (this.upgrading) {\n                waitForUpgrade();\n            }\n            else {\n                close();\n            }\n        }\n        return this;\n    }\n    /**\n     * Called upon transport error\n     *\n     * @private\n     */\n    onError(err) {\n        Socket.priorWebsocketSuccess = false;\n        this.emitReserved(\"error\", err);\n        this.onClose(\"transport error\", err);\n    }\n    /**\n     * Called upon transport close.\n     *\n     * @private\n     */\n    onClose(reason, description) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            // clear timers\n            this.clearTimeoutFn(this.pingTimeoutTimer);\n            // stop event from firing again for transport\n            this.transport.removeAllListeners(\"close\");\n            // ensure transport won't stay open\n            this.transport.close();\n            // ignore further transport communication\n            this.transport.removeAllListeners();\n            if (typeof removeEventListener === \"function\") {\n                removeEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n                removeEventListener(\"offline\", this.offlineEventListener, false);\n            }\n            // set ready state\n            this.readyState = \"closed\";\n            // clear session id\n            this.id = null;\n            // emit close event\n            this.emitReserved(\"close\", reason, description);\n            // clean buffers after, so users can still\n            // grab the buffers on `close` event\n            this.writeBuffer = [];\n            this.prevBufferLen = 0;\n        }\n    }\n    /**\n     * Filters upgrades, returning only those matching client transports.\n     *\n     * @param {Array} upgrades - server upgrades\n     * @private\n     */\n    filterUpgrades(upgrades) {\n        const filteredUpgrades = [];\n        let i = 0;\n        const j = upgrades.length;\n        for (; i < j; i++) {\n            if (~this.transports.indexOf(upgrades[i]))\n                filteredUpgrades.push(upgrades[i]);\n        }\n        return filteredUpgrades;\n    }\n}\nSocket.protocol = protocol;\n", "import { Socket } from \"./socket.js\";\nexport { Socket };\nexport const protocol = Socket.protocol;\nexport { Transport } from \"./transport.js\";\nexport { transports } from \"./transports/index.js\";\nexport { installTimerFunctions } from \"./util.js\";\nexport { parse } from \"./contrib/parseuri.js\";\nexport { nextTick } from \"./transports/websocket-constructor.js\";\n", "import { parse } from \"engine.io-client\";\n/**\n * URL parser.\n *\n * @param uri - url\n * @param path - the request path of the connection\n * @param loc - An object meant to mimic window.location.\n *        Defaults to window.location.\n * @public\n */\nexport function url(uri, path = \"\", loc) {\n    let obj = uri;\n    // default to window.location\n    loc = loc || (typeof location !== \"undefined\" && location);\n    if (null == uri)\n        uri = loc.protocol + \"//\" + loc.host;\n    // relative path support\n    if (typeof uri === \"string\") {\n        if (\"/\" === uri.charAt(0)) {\n            if (\"/\" === uri.charAt(1)) {\n                uri = loc.protocol + uri;\n            }\n            else {\n                uri = loc.host + uri;\n            }\n        }\n        if (!/^(https?|wss?):\\/\\//.test(uri)) {\n            if (\"undefined\" !== typeof loc) {\n                uri = loc.protocol + \"//\" + uri;\n            }\n            else {\n                uri = \"https://\" + uri;\n            }\n        }\n        // parse\n        obj = parse(uri);\n    }\n    // make sure we treat `localhost:80` and `localhost` equally\n    if (!obj.port) {\n        if (/^(http|ws)$/.test(obj.protocol)) {\n            obj.port = \"80\";\n        }\n        else if (/^(http|ws)s$/.test(obj.protocol)) {\n            obj.port = \"443\";\n        }\n    }\n    obj.path = obj.path || \"/\";\n    const ipv6 = obj.host.indexOf(\":\") !== -1;\n    const host = ipv6 ? \"[\" + obj.host + \"]\" : obj.host;\n    // define unique id\n    obj.id = obj.protocol + \"://\" + host + \":\" + obj.port + path;\n    // define href\n    obj.href =\n        obj.protocol +\n            \"://\" +\n            host +\n            (loc && loc.port === obj.port ? \"\" : \":\" + obj.port);\n    return obj;\n}\n", "import { Emitter } from \"@socket.io/component-emitter\";\nimport { deconstructPacket, reconstructPacket } from \"./binary.js\";\nimport { isBinary, hasBinary } from \"./is-binary.js\";\n/**\n * These strings must not be used as event names, as they have a special meaning.\n */\nconst RESERVED_EVENTS = [\n    \"connect\",\n    \"connect_error\",\n    \"disconnect\",\n    \"disconnecting\",\n    \"newListener\",\n    \"removeListener\", // used by the Node.js EventEmitter\n];\n/**\n * Protocol version.\n *\n * @public\n */\nexport const protocol = 5;\nexport var PacketType;\n(function (PacketType) {\n    PacketType[PacketType[\"CONNECT\"] = 0] = \"CONNECT\";\n    PacketType[PacketType[\"DISCONNECT\"] = 1] = \"DISCONNECT\";\n    PacketType[PacketType[\"EVENT\"] = 2] = \"EVENT\";\n    PacketType[PacketType[\"ACK\"] = 3] = \"ACK\";\n    PacketType[PacketType[\"CONNECT_ERROR\"] = 4] = \"CONNECT_ERROR\";\n    PacketType[PacketType[\"BINARY_EVENT\"] = 5] = \"BINARY_EVENT\";\n    PacketType[PacketType[\"BINARY_ACK\"] = 6] = \"BINARY_ACK\";\n})(PacketType || (PacketType = {}));\n/**\n * A socket.io Encoder instance\n */\nexport class Encoder {\n    /**\n     * Encoder constructor\n     *\n     * @param {function} replacer - custom replacer to pass down to JSON.parse\n     */\n    constructor(replacer) {\n        this.replacer = replacer;\n    }\n    /**\n     * Encode a packet as a single string if non-binary, or as a\n     * buffer sequence, depending on packet type.\n     *\n     * @param {Object} obj - packet object\n     */\n    encode(obj) {\n        if (obj.type === PacketType.EVENT || obj.type === PacketType.ACK) {\n            if (hasBinary(obj)) {\n                return this.encodeAsBinary({\n                    type: obj.type === PacketType.EVENT\n                        ? PacketType.BINARY_EVENT\n                        : PacketType.BINARY_ACK,\n                    nsp: obj.nsp,\n                    data: obj.data,\n                    id: obj.id,\n                });\n            }\n        }\n        return [this.encodeAsString(obj)];\n    }\n    /**\n     * Encode packet as string.\n     */\n    encodeAsString(obj) {\n        // first is type\n        let str = \"\" + obj.type;\n        // attachments if we have them\n        if (obj.type === PacketType.BINARY_EVENT ||\n            obj.type === PacketType.BINARY_ACK) {\n            str += obj.attachments + \"-\";\n        }\n        // if we have a namespace other than `/`\n        // we append it followed by a comma `,`\n        if (obj.nsp && \"/\" !== obj.nsp) {\n            str += obj.nsp + \",\";\n        }\n        // immediately followed by the id\n        if (null != obj.id) {\n            str += obj.id;\n        }\n        // json data\n        if (null != obj.data) {\n            str += JSON.stringify(obj.data, this.replacer);\n        }\n        return str;\n    }\n    /**\n     * Encode packet as 'buffer sequence' by removing blobs, and\n     * deconstructing packet into object with placeholders and\n     * a list of buffers.\n     */\n    encodeAsBinary(obj) {\n        const deconstruction = deconstructPacket(obj);\n        const pack = this.encodeAsString(deconstruction.packet);\n        const buffers = deconstruction.buffers;\n        buffers.unshift(pack); // add packet info to beginning of data list\n        return buffers; // write all the buffers\n    }\n}\n// see https://stackoverflow.com/questions/8511281/check-if-a-value-is-an-object-in-javascript\nfunction isObject(value) {\n    return Object.prototype.toString.call(value) === \"[object Object]\";\n}\n/**\n * A socket.io Decoder instance\n *\n * @return {Object} decoder\n */\nexport class Decoder extends Emitter {\n    /**\n     * Decoder constructor\n     *\n     * @param {function} reviver - custom reviver to pass down to JSON.stringify\n     */\n    constructor(reviver) {\n        super();\n        this.reviver = reviver;\n    }\n    /**\n     * Decodes an encoded packet string into packet JSON.\n     *\n     * @param {String} obj - encoded packet\n     */\n    add(obj) {\n        let packet;\n        if (typeof obj === \"string\") {\n            if (this.reconstructor) {\n                throw new Error(\"got plaintext data when reconstructing a packet\");\n            }\n            packet = this.decodeString(obj);\n            const isBinaryEvent = packet.type === PacketType.BINARY_EVENT;\n            if (isBinaryEvent || packet.type === PacketType.BINARY_ACK) {\n                packet.type = isBinaryEvent ? PacketType.EVENT : PacketType.ACK;\n                // binary packet's json\n                this.reconstructor = new BinaryReconstructor(packet);\n                // no attachments, labeled binary but no binary data to follow\n                if (packet.attachments === 0) {\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n            else {\n                // non-binary full packet\n                super.emitReserved(\"decoded\", packet);\n            }\n        }\n        else if (isBinary(obj) || obj.base64) {\n            // raw binary data\n            if (!this.reconstructor) {\n                throw new Error(\"got binary data when not reconstructing a packet\");\n            }\n            else {\n                packet = this.reconstructor.takeBinaryData(obj);\n                if (packet) {\n                    // received final buffer\n                    this.reconstructor = null;\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n        }\n        else {\n            throw new Error(\"Unknown type: \" + obj);\n        }\n    }\n    /**\n     * Decode a packet String (JSON data)\n     *\n     * @param {String} str\n     * @return {Object} packet\n     */\n    decodeString(str) {\n        let i = 0;\n        // look up type\n        const p = {\n            type: Number(str.charAt(0)),\n        };\n        if (PacketType[p.type] === undefined) {\n            throw new Error(\"unknown packet type \" + p.type);\n        }\n        // look up attachments if type binary\n        if (p.type === PacketType.BINARY_EVENT ||\n            p.type === PacketType.BINARY_ACK) {\n            const start = i + 1;\n            while (str.charAt(++i) !== \"-\" && i != str.length) { }\n            const buf = str.substring(start, i);\n            if (buf != Number(buf) || str.charAt(i) !== \"-\") {\n                throw new Error(\"Illegal attachments\");\n            }\n            p.attachments = Number(buf);\n        }\n        // look up namespace (if any)\n        if (\"/\" === str.charAt(i + 1)) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (\",\" === c)\n                    break;\n                if (i === str.length)\n                    break;\n            }\n            p.nsp = str.substring(start, i);\n        }\n        else {\n            p.nsp = \"/\";\n        }\n        // look up id\n        const next = str.charAt(i + 1);\n        if (\"\" !== next && Number(next) == next) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (null == c || Number(c) != c) {\n                    --i;\n                    break;\n                }\n                if (i === str.length)\n                    break;\n            }\n            p.id = Number(str.substring(start, i + 1));\n        }\n        // look up json data\n        if (str.charAt(++i)) {\n            const payload = this.tryParse(str.substr(i));\n            if (Decoder.isPayloadValid(p.type, payload)) {\n                p.data = payload;\n            }\n            else {\n                throw new Error(\"invalid payload\");\n            }\n        }\n        return p;\n    }\n    tryParse(str) {\n        try {\n            return JSON.parse(str, this.reviver);\n        }\n        catch (e) {\n            return false;\n        }\n    }\n    static isPayloadValid(type, payload) {\n        switch (type) {\n            case PacketType.CONNECT:\n                return isObject(payload);\n            case PacketType.DISCONNECT:\n                return payload === undefined;\n            case PacketType.CONNECT_ERROR:\n                return typeof payload === \"string\" || isObject(payload);\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                return (Array.isArray(payload) &&\n                    (typeof payload[0] === \"number\" ||\n                        (typeof payload[0] === \"string\" &&\n                            RESERVED_EVENTS.indexOf(payload[0]) === -1)));\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                return Array.isArray(payload);\n        }\n    }\n    /**\n     * Deallocates a parser's resources\n     */\n    destroy() {\n        if (this.reconstructor) {\n            this.reconstructor.finishedReconstruction();\n            this.reconstructor = null;\n        }\n    }\n}\n/**\n * A manager of a binary event's 'buffer sequence'. Should\n * be constructed whenever a packet of type BINARY_EVENT is\n * decoded.\n *\n * @param {Object} packet\n * @return {BinaryReconstructor} initialized reconstructor\n */\nclass BinaryReconstructor {\n    constructor(packet) {\n        this.packet = packet;\n        this.buffers = [];\n        this.reconPack = packet;\n    }\n    /**\n     * Method to be called when binary data received from connection\n     * after a BINARY_EVENT packet.\n     *\n     * @param {Buffer | ArrayBuffer} binData - the raw binary data received\n     * @return {null | Object} returns null if more binary data is expected or\n     *   a reconstructed packet object if all buffers have been received.\n     */\n    takeBinaryData(binData) {\n        this.buffers.push(binData);\n        if (this.buffers.length === this.reconPack.attachments) {\n            // done with buffer list\n            const packet = reconstructPacket(this.reconPack, this.buffers);\n            this.finishedReconstruction();\n            return packet;\n        }\n        return null;\n    }\n    /**\n     * Cleans up binary packet reconstruction variables.\n     */\n    finishedReconstruction() {\n        this.reconPack = null;\n        this.buffers = [];\n    }\n}\n", "const withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nconst isView = (obj) => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj.buffer instanceof ArrayBuffer;\n};\nconst toString = Object.prototype.toString;\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeFile = typeof File === \"function\" ||\n    (typeof File !== \"undefined\" &&\n        toString.call(File) === \"[object FileConstructor]\");\n/**\n * Returns true if obj is a Buffer, an ArrayBuffer, a Blob or a File.\n *\n * @private\n */\nexport function isBinary(obj) {\n    return ((withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj))) ||\n        (withNativeBlob && obj instanceof Blob) ||\n        (withNativeFile && obj instanceof File));\n}\nexport function hasBinary(obj, toJSON) {\n    if (!obj || typeof obj !== \"object\") {\n        return false;\n    }\n    if (Array.isArray(obj)) {\n        for (let i = 0, l = obj.length; i < l; i++) {\n            if (hasBinary(obj[i])) {\n                return true;\n            }\n        }\n        return false;\n    }\n    if (isBinary(obj)) {\n        return true;\n    }\n    if (obj.toJSON &&\n        typeof obj.toJSON === \"function\" &&\n        arguments.length === 1) {\n        return hasBinary(obj.toJSON(), true);\n    }\n    for (const key in obj) {\n        if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {\n            return true;\n        }\n    }\n    return false;\n}\n", "import { isBinary } from \"./is-binary.js\";\n/**\n * Replaces every Buffer | ArrayBuffer | Blob | File in packet with a numbered placeholder.\n *\n * @param {Object} packet - socket.io event packet\n * @return {Object} with deconstructed packet and list of buffers\n * @public\n */\nexport function deconstructPacket(packet) {\n    const buffers = [];\n    const packetData = packet.data;\n    const pack = packet;\n    pack.data = _deconstructPacket(packetData, buffers);\n    pack.attachments = buffers.length; // number of binary 'attachments'\n    return { packet: pack, buffers: buffers };\n}\nfunction _deconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (isBinary(data)) {\n        const placeholder = { _placeholder: true, num: buffers.length };\n        buffers.push(data);\n        return placeholder;\n    }\n    else if (Array.isArray(data)) {\n        const newData = new Array(data.length);\n        for (let i = 0; i < data.length; i++) {\n            newData[i] = _deconstructPacket(data[i], buffers);\n        }\n        return newData;\n    }\n    else if (typeof data === \"object\" && !(data instanceof Date)) {\n        const newData = {};\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                newData[key] = _deconstructPacket(data[key], buffers);\n            }\n        }\n        return newData;\n    }\n    return data;\n}\n/**\n * Reconstructs a binary packet from its placeholder packet and buffers\n *\n * @param {Object} packet - event packet with placeholders\n * @param {Array} buffers - binary buffers to put in placeholder positions\n * @return {Object} reconstructed packet\n * @public\n */\nexport function reconstructPacket(packet, buffers) {\n    packet.data = _reconstructPacket(packet.data, buffers);\n    delete packet.attachments; // no longer useful\n    return packet;\n}\nfunction _reconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (data && data._placeholder === true) {\n        const isIndexValid = typeof data.num === \"number\" &&\n            data.num >= 0 &&\n            data.num < buffers.length;\n        if (isIndexValid) {\n            return buffers[data.num]; // appropriate buffer (should be natural order anyway)\n        }\n        else {\n            throw new Error(\"illegal attachments\");\n        }\n    }\n    else if (Array.isArray(data)) {\n        for (let i = 0; i < data.length; i++) {\n            data[i] = _reconstructPacket(data[i], buffers);\n        }\n    }\n    else if (typeof data === \"object\") {\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                data[key] = _reconstructPacket(data[key], buffers);\n            }\n        }\n    }\n    return data;\n}\n", "export function on(obj, ev, fn) {\n    obj.on(ev, fn);\n    return function subDestroy() {\n        obj.off(ev, fn);\n    };\n}\n", "import { PacketType } from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\n/**\n * Internal events.\n * These events can't be emitted by the user.\n */\nconst RESERVED_EVENTS = Object.freeze({\n    connect: 1,\n    connect_error: 1,\n    disconnect: 1,\n    disconnecting: 1,\n    // EventEmitter reserved events: https://nodejs.org/api/events.html#events_event_newlistener\n    newListener: 1,\n    removeListener: 1,\n});\n/**\n * A Socket is the fundamental class for interacting with the server.\n *\n * A Socket belongs to a certain Namespace (by default /) and uses an underlying {@link Manager} to communicate.\n *\n * @example\n * const socket = io();\n *\n * socket.on(\"connect\", () => {\n *   console.log(\"connected\");\n * });\n *\n * // send an event to the server\n * socket.emit(\"foo\", \"bar\");\n *\n * socket.on(\"foobar\", () => {\n *   // an event was received from the server\n * });\n *\n * // upon disconnection\n * socket.on(\"disconnect\", (reason) => {\n *   console.log(`disconnected due to ${reason}`);\n * });\n */\nexport class Socket extends Emitter {\n    /**\n     * `Socket` constructor.\n     */\n    constructor(io, nsp, opts) {\n        super();\n        /**\n         * Whether the socket is currently connected to the server.\n         *\n         * @example\n         * const socket = io();\n         *\n         * socket.on(\"connect\", () => {\n         *   console.log(socket.connected); // true\n         * });\n         *\n         * socket.on(\"disconnect\", () => {\n         *   console.log(socket.connected); // false\n         * });\n         */\n        this.connected = false;\n        /**\n         * Whether the connection state was recovered after a temporary disconnection. In that case, any missed packets will\n         * be transmitted by the server.\n         */\n        this.recovered = false;\n        /**\n         * Buffer for packets received before the CONNECT packet\n         */\n        this.receiveBuffer = [];\n        /**\n         * Buffer for packets that will be sent once the socket is connected\n         */\n        this.sendBuffer = [];\n        /**\n         * The queue of packets to be sent with retry in case of failure.\n         *\n         * Packets are sent one by one, each waiting for the server acknowledgement, in order to guarantee the delivery order.\n         * @private\n         */\n        this._queue = [];\n        /**\n         * A sequence to generate the ID of the {@link QueuedPacket}.\n         * @private\n         */\n        this._queueSeq = 0;\n        this.ids = 0;\n        this.acks = {};\n        this.flags = {};\n        this.io = io;\n        this.nsp = nsp;\n        if (opts && opts.auth) {\n            this.auth = opts.auth;\n        }\n        this._opts = Object.assign({}, opts);\n        if (this.io._autoConnect)\n            this.open();\n    }\n    /**\n     * Whether the socket is currently disconnected\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"connect\", () => {\n     *   console.log(socket.disconnected); // false\n     * });\n     *\n     * socket.on(\"disconnect\", () => {\n     *   console.log(socket.disconnected); // true\n     * });\n     */\n    get disconnected() {\n        return !this.connected;\n    }\n    /**\n     * Subscribe to open, close and packet events\n     *\n     * @private\n     */\n    subEvents() {\n        if (this.subs)\n            return;\n        const io = this.io;\n        this.subs = [\n            on(io, \"open\", this.onopen.bind(this)),\n            on(io, \"packet\", this.onpacket.bind(this)),\n            on(io, \"error\", this.onerror.bind(this)),\n            on(io, \"close\", this.onclose.bind(this)),\n        ];\n    }\n    /**\n     * Whether the Socket will try to reconnect when its Manager connects or reconnects.\n     *\n     * @example\n     * const socket = io();\n     *\n     * console.log(socket.active); // true\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   if (reason === \"io server disconnect\") {\n     *     // the disconnection was initiated by the server, you need to manually reconnect\n     *     console.log(socket.active); // false\n     *   }\n     *   // else the socket will automatically try to reconnect\n     *   console.log(socket.active); // true\n     * });\n     */\n    get active() {\n        return !!this.subs;\n    }\n    /**\n     * \"Opens\" the socket.\n     *\n     * @example\n     * const socket = io({\n     *   autoConnect: false\n     * });\n     *\n     * socket.connect();\n     */\n    connect() {\n        if (this.connected)\n            return this;\n        this.subEvents();\n        if (!this.io[\"_reconnecting\"])\n            this.io.open(); // ensure open\n        if (\"open\" === this.io._readyState)\n            this.onopen();\n        return this;\n    }\n    /**\n     * Alias for {@link connect()}.\n     */\n    open() {\n        return this.connect();\n    }\n    /**\n     * Sends a `message` event.\n     *\n     * This method mimics the WebSocket.send() method.\n     *\n     * @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send\n     *\n     * @example\n     * socket.send(\"hello\");\n     *\n     * // this is equivalent to\n     * socket.emit(\"message\", \"hello\");\n     *\n     * @return self\n     */\n    send(...args) {\n        args.unshift(\"message\");\n        this.emit.apply(this, args);\n        return this;\n    }\n    /**\n     * Override `emit`.\n     * If the event is in `events`, it's emitted normally.\n     *\n     * @example\n     * socket.emit(\"hello\", \"world\");\n     *\n     * // all serializable datastructures are supported (no need to call JSON.stringify)\n     * socket.emit(\"hello\", 1, \"2\", { 3: [\"4\"], 5: Uint8Array.from([6]) });\n     *\n     * // with an acknowledgement from the server\n     * socket.emit(\"hello\", \"world\", (val) => {\n     *   // ...\n     * });\n     *\n     * @return self\n     */\n    emit(ev, ...args) {\n        if (RESERVED_EVENTS.hasOwnProperty(ev)) {\n            throw new Error('\"' + ev.toString() + '\" is a reserved event name');\n        }\n        args.unshift(ev);\n        if (this._opts.retries && !this.flags.fromQueue && !this.flags.volatile) {\n            this._addToQueue(args);\n            return this;\n        }\n        const packet = {\n            type: PacketType.EVENT,\n            data: args,\n        };\n        packet.options = {};\n        packet.options.compress = this.flags.compress !== false;\n        // event ack callback\n        if (\"function\" === typeof args[args.length - 1]) {\n            const id = this.ids++;\n            const ack = args.pop();\n            this._registerAckCallback(id, ack);\n            packet.id = id;\n        }\n        const isTransportWritable = this.io.engine &&\n            this.io.engine.transport &&\n            this.io.engine.transport.writable;\n        const discardPacket = this.flags.volatile && (!isTransportWritable || !this.connected);\n        if (discardPacket) {\n        }\n        else if (this.connected) {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        }\n        else {\n            this.sendBuffer.push(packet);\n        }\n        this.flags = {};\n        return this;\n    }\n    /**\n     * @private\n     */\n    _registerAckCallback(id, ack) {\n        var _a;\n        const timeout = (_a = this.flags.timeout) !== null && _a !== void 0 ? _a : this._opts.ackTimeout;\n        if (timeout === undefined) {\n            this.acks[id] = ack;\n            return;\n        }\n        // @ts-ignore\n        const timer = this.io.setTimeoutFn(() => {\n            delete this.acks[id];\n            for (let i = 0; i < this.sendBuffer.length; i++) {\n                if (this.sendBuffer[i].id === id) {\n                    this.sendBuffer.splice(i, 1);\n                }\n            }\n            ack.call(this, new Error(\"operation has timed out\"));\n        }, timeout);\n        this.acks[id] = (...args) => {\n            // @ts-ignore\n            this.io.clearTimeoutFn(timer);\n            ack.apply(this, [null, ...args]);\n        };\n    }\n    /**\n     * Emits an event and waits for an acknowledgement\n     *\n     * @example\n     * // without timeout\n     * const response = await socket.emitWithAck(\"hello\", \"world\");\n     *\n     * // with a specific timeout\n     * try {\n     *   const response = await socket.timeout(1000).emitWithAck(\"hello\", \"world\");\n     * } catch (err) {\n     *   // the server did not acknowledge the event in the given delay\n     * }\n     *\n     * @return a Promise that will be fulfilled when the server acknowledges the event\n     */\n    emitWithAck(ev, ...args) {\n        // the timeout flag is optional\n        const withErr = this.flags.timeout !== undefined || this._opts.ackTimeout !== undefined;\n        return new Promise((resolve, reject) => {\n            args.push((arg1, arg2) => {\n                if (withErr) {\n                    return arg1 ? reject(arg1) : resolve(arg2);\n                }\n                else {\n                    return resolve(arg1);\n                }\n            });\n            this.emit(ev, ...args);\n        });\n    }\n    /**\n     * Add the packet to the queue.\n     * @param args\n     * @private\n     */\n    _addToQueue(args) {\n        let ack;\n        if (typeof args[args.length - 1] === \"function\") {\n            ack = args.pop();\n        }\n        const packet = {\n            id: this._queueSeq++,\n            tryCount: 0,\n            pending: false,\n            args,\n            flags: Object.assign({ fromQueue: true }, this.flags),\n        };\n        args.push((err, ...responseArgs) => {\n            if (packet !== this._queue[0]) {\n                // the packet has already been acknowledged\n                return;\n            }\n            const hasError = err !== null;\n            if (hasError) {\n                if (packet.tryCount > this._opts.retries) {\n                    this._queue.shift();\n                    if (ack) {\n                        ack(err);\n                    }\n                }\n            }\n            else {\n                this._queue.shift();\n                if (ack) {\n                    ack(null, ...responseArgs);\n                }\n            }\n            packet.pending = false;\n            return this._drainQueue();\n        });\n        this._queue.push(packet);\n        this._drainQueue();\n    }\n    /**\n     * Send the first packet of the queue, and wait for an acknowledgement from the server.\n     * @param force - whether to resend a packet that has not been acknowledged yet\n     *\n     * @private\n     */\n    _drainQueue(force = false) {\n        if (!this.connected || this._queue.length === 0) {\n            return;\n        }\n        const packet = this._queue[0];\n        if (packet.pending && !force) {\n            return;\n        }\n        packet.pending = true;\n        packet.tryCount++;\n        this.flags = packet.flags;\n        this.emit.apply(this, packet.args);\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param packet\n     * @private\n     */\n    packet(packet) {\n        packet.nsp = this.nsp;\n        this.io._packet(packet);\n    }\n    /**\n     * Called upon engine `open`.\n     *\n     * @private\n     */\n    onopen() {\n        if (typeof this.auth == \"function\") {\n            this.auth((data) => {\n                this._sendConnectPacket(data);\n            });\n        }\n        else {\n            this._sendConnectPacket(this.auth);\n        }\n    }\n    /**\n     * Sends a CONNECT packet to initiate the Socket.IO session.\n     *\n     * @param data\n     * @private\n     */\n    _sendConnectPacket(data) {\n        this.packet({\n            type: PacketType.CONNECT,\n            data: this._pid\n                ? Object.assign({ pid: this._pid, offset: this._lastOffset }, data)\n                : data,\n        });\n    }\n    /**\n     * Called upon engine or manager `error`.\n     *\n     * @param err\n     * @private\n     */\n    onerror(err) {\n        if (!this.connected) {\n            this.emitReserved(\"connect_error\", err);\n        }\n    }\n    /**\n     * Called upon engine `close`.\n     *\n     * @param reason\n     * @param description\n     * @private\n     */\n    onclose(reason, description) {\n        this.connected = false;\n        delete this.id;\n        this.emitReserved(\"disconnect\", reason, description);\n    }\n    /**\n     * Called with socket packet.\n     *\n     * @param packet\n     * @private\n     */\n    onpacket(packet) {\n        const sameNamespace = packet.nsp === this.nsp;\n        if (!sameNamespace)\n            return;\n        switch (packet.type) {\n            case PacketType.CONNECT:\n                if (packet.data && packet.data.sid) {\n                    this.onconnect(packet.data.sid, packet.data.pid);\n                }\n                else {\n                    this.emitReserved(\"connect_error\", new Error(\"It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)\"));\n                }\n                break;\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                this.onevent(packet);\n                break;\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                this.onack(packet);\n                break;\n            case PacketType.DISCONNECT:\n                this.ondisconnect();\n                break;\n            case PacketType.CONNECT_ERROR:\n                this.destroy();\n                const err = new Error(packet.data.message);\n                // @ts-ignore\n                err.data = packet.data.data;\n                this.emitReserved(\"connect_error\", err);\n                break;\n        }\n    }\n    /**\n     * Called upon a server event.\n     *\n     * @param packet\n     * @private\n     */\n    onevent(packet) {\n        const args = packet.data || [];\n        if (null != packet.id) {\n            args.push(this.ack(packet.id));\n        }\n        if (this.connected) {\n            this.emitEvent(args);\n        }\n        else {\n            this.receiveBuffer.push(Object.freeze(args));\n        }\n    }\n    emitEvent(args) {\n        if (this._anyListeners && this._anyListeners.length) {\n            const listeners = this._anyListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, args);\n            }\n        }\n        super.emit.apply(this, args);\n        if (this._pid && args.length && typeof args[args.length - 1] === \"string\") {\n            this._lastOffset = args[args.length - 1];\n        }\n    }\n    /**\n     * Produces an ack callback to emit with an event.\n     *\n     * @private\n     */\n    ack(id) {\n        const self = this;\n        let sent = false;\n        return function (...args) {\n            // prevent double callbacks\n            if (sent)\n                return;\n            sent = true;\n            self.packet({\n                type: PacketType.ACK,\n                id: id,\n                data: args,\n            });\n        };\n    }\n    /**\n     * Called upon a server acknowlegement.\n     *\n     * @param packet\n     * @private\n     */\n    onack(packet) {\n        const ack = this.acks[packet.id];\n        if (\"function\" === typeof ack) {\n            ack.apply(this, packet.data);\n            delete this.acks[packet.id];\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon server connect.\n     *\n     * @private\n     */\n    onconnect(id, pid) {\n        this.id = id;\n        this.recovered = pid && this._pid === pid;\n        this._pid = pid; // defined only if connection state recovery is enabled\n        this.connected = true;\n        this.emitBuffered();\n        this.emitReserved(\"connect\");\n        this._drainQueue(true);\n    }\n    /**\n     * Emit buffered events (received and emitted).\n     *\n     * @private\n     */\n    emitBuffered() {\n        this.receiveBuffer.forEach((args) => this.emitEvent(args));\n        this.receiveBuffer = [];\n        this.sendBuffer.forEach((packet) => {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        });\n        this.sendBuffer = [];\n    }\n    /**\n     * Called upon server disconnect.\n     *\n     * @private\n     */\n    ondisconnect() {\n        this.destroy();\n        this.onclose(\"io server disconnect\");\n    }\n    /**\n     * Called upon forced client/server side disconnections,\n     * this method ensures the manager stops tracking us and\n     * that reconnections don't get triggered for this.\n     *\n     * @private\n     */\n    destroy() {\n        if (this.subs) {\n            // clean subscriptions to avoid reconnections\n            this.subs.forEach((subDestroy) => subDestroy());\n            this.subs = undefined;\n        }\n        this.io[\"_destroy\"](this);\n    }\n    /**\n     * Disconnects the socket manually. In that case, the socket will not try to reconnect.\n     *\n     * If this is the last active Socket instance of the {@link Manager}, the low-level connection will be closed.\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   // console.log(reason); prints \"io client disconnect\"\n     * });\n     *\n     * socket.disconnect();\n     *\n     * @return self\n     */\n    disconnect() {\n        if (this.connected) {\n            this.packet({ type: PacketType.DISCONNECT });\n        }\n        // remove socket from pool\n        this.destroy();\n        if (this.connected) {\n            // fire events\n            this.onclose(\"io client disconnect\");\n        }\n        return this;\n    }\n    /**\n     * Alias for {@link disconnect()}.\n     *\n     * @return self\n     */\n    close() {\n        return this.disconnect();\n    }\n    /**\n     * Sets the compress flag.\n     *\n     * @example\n     * socket.compress(false).emit(\"hello\");\n     *\n     * @param compress - if `true`, compresses the sending data\n     * @return self\n     */\n    compress(compress) {\n        this.flags.compress = compress;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the event message will be dropped when this socket is not\n     * ready to send messages.\n     *\n     * @example\n     * socket.volatile.emit(\"hello\"); // the server may or may not receive it\n     *\n     * @returns self\n     */\n    get volatile() {\n        this.flags.volatile = true;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the callback will be called with an error when the\n     * given number of milliseconds have elapsed without an acknowledgement from the server:\n     *\n     * @example\n     * socket.timeout(5000).emit(\"my-event\", (err) => {\n     *   if (err) {\n     *     // the server did not acknowledge the event in the given delay\n     *   }\n     * });\n     *\n     * @returns self\n     */\n    timeout(timeout) {\n        this.flags.timeout = timeout;\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * @example\n     * socket.onAny((event, ...args) => {\n     *   console.log(`got ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * @example\n     * socket.prependAny((event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * }\n     *\n     * socket.onAny(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAny(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAny();\n     *\n     * @param listener\n     */\n    offAny(listener) {\n        if (!this._anyListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAny() {\n        return this._anyListeners || [];\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.onAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.prependAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * }\n     *\n     * socket.onAnyOutgoing(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAnyOutgoing(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAnyOutgoing();\n     *\n     * @param [listener] - the catch-all listener (optional)\n     */\n    offAnyOutgoing(listener) {\n        if (!this._anyOutgoingListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyOutgoingListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyOutgoingListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAnyOutgoing() {\n        return this._anyOutgoingListeners || [];\n    }\n    /**\n     * Notify the listeners for each packet sent\n     *\n     * @param packet\n     *\n     * @private\n     */\n    notifyOutgoingListeners(packet) {\n        if (this._anyOutgoingListeners && this._anyOutgoingListeners.length) {\n            const listeners = this._anyOutgoingListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, packet.data);\n            }\n        }\n    }\n}\n", "/**\n * Initialize backoff timer with `opts`.\n *\n * - `min` initial timeout in milliseconds [100]\n * - `max` max timeout [10000]\n * - `jitter` [0]\n * - `factor` [2]\n *\n * @param {Object} opts\n * @api public\n */\nexport function Backoff(opts) {\n    opts = opts || {};\n    this.ms = opts.min || 100;\n    this.max = opts.max || 10000;\n    this.factor = opts.factor || 2;\n    this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;\n    this.attempts = 0;\n}\n/**\n * Return the backoff duration.\n *\n * @return {Number}\n * @api public\n */\nBackoff.prototype.duration = function () {\n    var ms = this.ms * Math.pow(this.factor, this.attempts++);\n    if (this.jitter) {\n        var rand = Math.random();\n        var deviation = Math.floor(rand * this.jitter * ms);\n        ms = (Math.floor(rand * 10) & 1) == 0 ? ms - deviation : ms + deviation;\n    }\n    return Math.min(ms, this.max) | 0;\n};\n/**\n * Reset the number of attempts.\n *\n * @api public\n */\nBackoff.prototype.reset = function () {\n    this.attempts = 0;\n};\n/**\n * Set the minimum duration\n *\n * @api public\n */\nBackoff.prototype.setMin = function (min) {\n    this.ms = min;\n};\n/**\n * Set the maximum duration\n *\n * @api public\n */\nBackoff.prototype.setMax = function (max) {\n    this.max = max;\n};\n/**\n * Set the jitter\n *\n * @api public\n */\nBackoff.prototype.setJitter = function (jitter) {\n    this.jitter = jitter;\n};\n", "import { Socket as Engine, installTimerFunctions, nextTick, } from \"engine.io-client\";\nimport { Socket } from \"./socket.js\";\nimport * as parser from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Backoff } from \"./contrib/backo2.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\nexport class Manager extends Emitter {\n    constructor(uri, opts) {\n        var _a;\n        super();\n        this.nsps = {};\n        this.subs = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = undefined;\n        }\n        opts = opts || {};\n        opts.path = opts.path || \"/socket.io\";\n        this.opts = opts;\n        installTimerFunctions(this, opts);\n        this.reconnection(opts.reconnection !== false);\n        this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);\n        this.reconnectionDelay(opts.reconnectionDelay || 1000);\n        this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);\n        this.randomizationFactor((_a = opts.randomizationFactor) !== null && _a !== void 0 ? _a : 0.5);\n        this.backoff = new Backoff({\n            min: this.reconnectionDelay(),\n            max: this.reconnectionDelayMax(),\n            jitter: this.randomizationFactor(),\n        });\n        this.timeout(null == opts.timeout ? 20000 : opts.timeout);\n        this._readyState = \"closed\";\n        this.uri = uri;\n        const _parser = opts.parser || parser;\n        this.encoder = new _parser.Encoder();\n        this.decoder = new _parser.Decoder();\n        this._autoConnect = opts.autoConnect !== false;\n        if (this._autoConnect)\n            this.open();\n    }\n    reconnection(v) {\n        if (!arguments.length)\n            return this._reconnection;\n        this._reconnection = !!v;\n        return this;\n    }\n    reconnectionAttempts(v) {\n        if (v === undefined)\n            return this._reconnectionAttempts;\n        this._reconnectionAttempts = v;\n        return this;\n    }\n    reconnectionDelay(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelay;\n        this._reconnectionDelay = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMin(v);\n        return this;\n    }\n    randomizationFactor(v) {\n        var _a;\n        if (v === undefined)\n            return this._randomizationFactor;\n        this._randomizationFactor = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setJitter(v);\n        return this;\n    }\n    reconnectionDelayMax(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelayMax;\n        this._reconnectionDelayMax = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMax(v);\n        return this;\n    }\n    timeout(v) {\n        if (!arguments.length)\n            return this._timeout;\n        this._timeout = v;\n        return this;\n    }\n    /**\n     * Starts trying to reconnect if reconnection is enabled and we have not\n     * started reconnecting yet\n     *\n     * @private\n     */\n    maybeReconnectOnOpen() {\n        // Only try to reconnect if it's the first time we're connecting\n        if (!this._reconnecting &&\n            this._reconnection &&\n            this.backoff.attempts === 0) {\n            // keeps reconnection from firing twice for the same reconnection loop\n            this.reconnect();\n        }\n    }\n    /**\n     * Sets the current transport `socket`.\n     *\n     * @param {Function} fn - optional, callback\n     * @return self\n     * @public\n     */\n    open(fn) {\n        if (~this._readyState.indexOf(\"open\"))\n            return this;\n        this.engine = new Engine(this.uri, this.opts);\n        const socket = this.engine;\n        const self = this;\n        this._readyState = \"opening\";\n        this.skipReconnect = false;\n        // emit `open`\n        const openSubDestroy = on(socket, \"open\", function () {\n            self.onopen();\n            fn && fn();\n        });\n        const onError = (err) => {\n            this.cleanup();\n            this._readyState = \"closed\";\n            this.emitReserved(\"error\", err);\n            if (fn) {\n                fn(err);\n            }\n            else {\n                // Only do this if there is no fn to handle the error\n                this.maybeReconnectOnOpen();\n            }\n        };\n        // emit `error`\n        const errorSub = on(socket, \"error\", onError);\n        if (false !== this._timeout) {\n            const timeout = this._timeout;\n            // set timer\n            const timer = this.setTimeoutFn(() => {\n                openSubDestroy();\n                onError(new Error(\"timeout\"));\n                socket.close();\n   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on(this.decoder, \"decoded\", this.ondecoded.bind(this)));\n    }\n    /**\n     * Called upon a ping.\n     *\n     * @private\n     */\n    onping() {\n        this.emitReserved(\"ping\");\n    }\n    /**\n     * Called with data.\n     *\n     * @private\n     */\n    ondata(data) {\n        try {\n            this.decoder.add(data);\n        }\n        catch (e) {\n            this.onclose(\"parse error\", e);\n        }\n    }\n    /**\n     * Called when parser fully decodes a packet.\n     *\n     * @private\n     */\n    ondecoded(packet) {\n        // the nextTick call prevents an exception in a user-provided event listener from triggering a disconnection due to a \"parse error\"\n        nextTick(() => {\n            this.emitReserved(\"packet\", packet);\n        }, this.setTimeoutFn);\n    }\n    /**\n     * Called upon socket error.\n     *\n     * @private\n     */\n    onerror(err) {\n        this.emitReserved(\"error\", err);\n    }\n    /**\n     * Creates a new socket for the given `nsp`.\n     *\n     * @return {Socket}\n     * @public\n     */\n    socket(nsp, opts) {\n        let socket = this.nsps[nsp];\n        if (!socket) {\n            socket = new Socket(this, nsp, opts);\n            this.nsps[nsp] = socket;\n        }\n        else if (this._autoConnect && !socket.active) {\n            socket.connect();\n        }\n        return socket;\n    }\n    /**\n     * Called upon a socket close.\n     *\n     * @param socket\n     * @private\n     */\n    _destroy(socket) {\n        const nsps = Object.keys(this.nsps);\n        for (const nsp of nsps) {\n            const socket = this.nsps[nsp];\n            if (socket.active) {\n                return;\n            }\n        }\n        this._close();\n    }\n    /**\n     * Writes a packet.\n     *\n     * @param packet\n     * @private\n     */\n    _packet(packet) {\n        const encodedPackets = this.encoder.encode(packet);\n        for (let i = 0; i < encodedPackets.length; i++) {\n            this.engine.write(encodedPackets[i], packet.options);\n        }\n    }\n    /**\n     * Clean up transport subscriptions and packet buffer.\n     *\n     * @private\n     */\n    cleanup() {\n        this.subs.forEach((subDestroy) => subDestroy());\n        this.subs.length = 0;\n        this.decoder.destroy();\n    }\n    /**\n     * Close the current socket.\n     *\n     * @private\n     */\n    _close() {\n        this.skipReconnect = true;\n        this._reconnecting = false;\n        this.onclose(\"forced close\");\n        if (this.engine)\n            this.engine.close();\n    }\n    /**\n     * Alias for close()\n     *\n     * @private\n     */\n    disconnect() {\n        return this._close();\n    }\n    /**\n     * Called upon engine close.\n     *\n     * @private\n     */\n    onclose(reason, description) {\n        this.cleanup();\n        this.backoff.reset();\n        this._readyState = \"closed\";\n        this.emitReserved(\"close\", reason, description);\n        if (this._reconnection && !this.skipReconnect) {\n            this.reconnect();\n        }\n    }\n    /**\n     * Attempt a reconnection.\n     *\n     * @private\n     */\n    reconnect() {\n        if (this._reconnecting || this.skipReconnect)\n            return this;\n        const self = this;\n        if (this.backoff.attempts >= this._reconnectionAttempts) {\n            this.backoff.reset();\n            this.emitReserved(\"reconnect_failed\");\n            this._reconnecting = false;\n        }\n        else {\n            const delay = this.backoff.duration();\n            this._reconnecting = true;\n            const timer = this.setTimeoutFn(() => {\n                if (self.skipReconnect)\n                    return;\n                this.emitReserved(\"reconnect_attempt\", self.backoff.attempts);\n                // check again for the case socket closed in above events\n                if (self.skipReconnect)\n                    return;\n                self.open((err) => {\n                    if (err) {\n                        self._reconnecting = false;\n                        self.reconnect();\n                        this.emitReserved(\"reconnect_error\", err);\n                    }\n                    else {\n                        self.onreconnect();\n                    }\n                });\n            }, delay);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n    }\n    /**\n     * Called upon successful reconnect.\n     *\n     * @private\n     */\n    onreconnect() {\n        const attempt = this.backoff.attempts;\n        this._reconnecting = false;\n        this.backoff.reset();\n        this.emitReserved(\"reconnect\", attempt);\n    }\n}\n", "import { url } from \"./url.js\";\nimport { Manager } from \"./manager.js\";\nimport { Socket } from \"./socket.js\";\n/**\n * Managers cache.\n */\nconst cache = {};\nfunction lookup(uri, opts) {\n    if (typeof uri === \"object\") {\n        opts = uri;\n        uri = undefined;\n    }\n    opts = opts || {};\n    const parsed = url(uri, opts.path || \"/socket.io\");\n    const source = parsed.source;\n    const id = parsed.id;\n    const path = parsed.path;\n    const sameNamespace = cache[id] && path in cache[id][\"nsps\"];\n    const newConnection = opts.forceNew ||\n        opts[\"force new connection\"] ||\n        false === opts.multiplex ||\n        sameNamespace;\n    let io;\n    if (newConnection) {\n        io = new Manager(source, opts);\n    }\n    else {\n        if (!cache[id]) {\n            cache[id] = new Manager(source, opts);\n        }\n        io = cache[id];\n    }\n    if (parsed.query && !opts.query) {\n        opts.query = parsed.queryKey;\n    }\n    return io.socket(parsed.path, opts);\n}\n// so that \"lookup\" can be used both as a function (e.g. `io(...)`) and as a\n// namespace (e.g. `io.connect(...)`), for backward compatibility\nObject.assign(lookup, {\n    Manager,\n    Socket,\n    io: lookup,\n    connect: lookup,\n});\n/**\n * Protocol version.\n *\n * @public\n */\nexport { protocol } from \"socket.io-parser\";\n/**\n * Expose constructors for standalone build.\n *\n * @public\n */\nexport { Manager, Socket, lookup as io, lookup as connect, lookup as default, };\n"],
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"receivedCtrlMsg", "txtToSend", "ioNamespace", "u", "t", "delay", "factor", "depth", "reason", "lookup", "options", "eMsg", "uibuilder", "uibuilder_module_default", "uibuilder", "UibVar"]
+  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        this._uiManager(msg)\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += msg.payload\n        if (ui.content) content += ui.content\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    // Namespaces - See https://stackoverflow.com/a/52572048/1309986\n    // const NAMESPACES = {\n    //     svg: 'http://www.w3.org/2000/svg',\n    //     html: 'http://www.w3.org/1999/xhtml',\n    //     xml: 'http://www.w3.org/XML/1998/namespace',\n    //     xlink: 'http://www.w3.org/1999/xlink',\n    //     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n    // }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n\n    } // --- end of _uiManager ---\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName !== null && propName !== '') {\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    // Nightmare of different object types in a DOM Element!\n                    if (prop.constructor.name === 'NamedNodeMap') { // Attributes\n                        const p = {}\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                        out.push(p)\n                    } else if (!prop.constructor.name.toLowerCase().includes('map')) { // Ordinary properties\n                        out.push({\n                            [propName]: prop\n                        })\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                        out.push(p)\n                    }\n                }\n\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n", "/* This is the Front-End JavaScript for uibuilder  in HTML Module form\n  It provides a number of global objects that can be used in your own javascript.\n  see the docs folder `./docs/uibuilder.module.md` for details of how to use this fully.\n\n  Please use the default index.js file for your own code and leave this as-is.\n  See Uib._meta for client version string\n\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n//#region --- Type Defs --- //\n/**\n * A string containing HTML markup\n * @typedef {string} html\n */\n//#endregion --- Type Defs --- //\n\n//#region --- We need the Socket.IO & ui libraries & the uib-var component  --- //\n// @ts-ignore - Note: Only works when using esbuild to bundle\nimport Ui from './ui'\nimport UibVar from '../components/uib-var'\nimport io from 'socket.io-client'\n\n// TODO - Maybe - check if already loaded as window['io']?\n// TODO - Maybe - Should this be moved to inside the class - would know the httpRoot then so less need to guess?\n// TODO           Or, could pull the cookie processing out of the class\n// const ioLocns = [ // Likely locations of the Socket.IO client library\n//     // Where it should normally be\n//     '../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and haven't changed httpNodeRoot\n//     '/uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and have changed httpNodeRoot\n//     '../../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Direct from the Internet - last ditch attempt\n//     'https://cdn.jsdelivr.net/npm/socket.io-client/+esm',\n// ]\n\n// let io\n// for (const locn of ioLocns) {\n//     try {\n//         ({ io } = await import(locn))\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library found at '${locn}'`)()\n//     } catch (e) {\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library not found at '${locn}'`)()\n//     }\n//     if (io) break\n// }\n// if (!io) log('error', 'uibuilder.module.js', 'Socket.IO client failed to load')()\n//#endregion -------- -------- -------- //\n\nconst version = '6.8.0-src'\n\n// TODO Add option to allow log events to be sent back to Node-RED as uib ctrl msgs\n//#region --- Module-level utility functions --- //\n\n// @ts-ignore Detect whether the loaded library is minified or not\nconst isMinified = !(/param/).test(function (param) { }) // eslint-disable-line no-unused-vars\n\n//#region --- print/console - debugging output functions --- //\n\n/** Default log level - Error & Warn */\nlet logLevel = isMinified ? 0 : 1  // When using minified lib, assume production and only log errors otherwise also log warn\n// function changeLogLevel(level) {\n//     logLevel = level\n//     console.trace = logLevel < 4 ? function(){} : console.trace\n//     console.debug = logLevel < 2 ? function(){} : console.debug\n//     if ( logLevel < 1 ) {\n//         console.log = console.group = console.groupEnd =  function(){}\n//     }\n// }\n\n// Experimental\nconst LOG_STYLES = {\n    // 0\n    error: {\n        css: 'background: red; color: black;',\n        txtCss: 'color: red; ',\n        pre: '\u26D4 ',\n        console: 'error',  // or trace\n    },\n    // 1\n    warn: {\n        css: 'background: darkorange; color: black;',\n        txtCss: 'color: darkorange; ',\n        pre: '\u26A0 ',\n        console: 'warn',\n    },\n    // 2\n    info: {\n        css: 'background: aqua; color: black;',\n        txtCss: 'color: aqua;',\n        pre: '\u2757 ',\n        console: 'info',\n    },\n    // 3\n    log: {\n        css: 'background: grey; color: yellow;',\n        txtCss: 'color: grey;',\n        pre: '',\n        console: 'log',\n    },\n    // 4\n    debug: {\n        css: 'background: chartreuse; color: black;',\n        txtCss: 'color: chartreuse;',\n        pre: '',\n        console: 'debug',\n    },\n    // 5\n    trace: {\n        css: 'background: indigo; color: yellow;',\n        txtCss: 'color: hotpink;',\n        pre: '',\n        console: 'log',\n    },\n\n    names: ['error', 'warn', 'info', 'log', 'debug', 'trace'],\n    reset: 'color: inherit;',\n    head: 'font-weight:bold; font-style:italic;',\n    level: 'font-weight:bold; border-radius: 3px; padding: 2px 5px; display:inline-block;',\n}\n/** Custom logging. e.g. log(2, 'here:there', 'jiminy', {fred:'jim'})()\n * @returns {Function} Log function @example log(2, 'here:there', 'jiminy', {fred:'jim'})()\n */\nfunction log() {\n    // Get the args\n    const args = Array.prototype.slice.call(arguments)\n\n    // 1st arg is the log level/type\n    let level = args.shift()\n    let strLevel\n    switch (level) {\n        case 'trace':\n        case 5: {\n            if (logLevel < 5) break\n            level = 5 // make sure level is numeric\n            strLevel = 'trace'\n            break\n        }\n\n        case 'debug':\n        case 4: {\n            if (logLevel < 4) break\n            level = 4\n            strLevel = 'debug'\n            break\n        }\n\n        case 'log':\n        case 3: {\n            if (logLevel < 3) break\n            level = 3\n            strLevel = 'log'\n            break\n        }\n\n        case 'info':\n        case '':\n        case 2: {\n            if (logLevel < 2) break\n            level = 2\n            strLevel = 'info'\n            break\n        }\n\n        case 'warn':\n        case 1: {\n            if (logLevel < 1) break\n            level = 1\n            strLevel = 'warn'\n            break\n        }\n\n        case 'error':\n        case 'err':\n        case 0: {\n            if (logLevel < 0) break\n            level = 0\n            strLevel = 'error'\n            break\n        }\n\n        default: {\n            level = -1\n            break\n        }\n\n    }\n\n    // If set to something unknown, no log output\n    if (strLevel === undefined) return function () { }\n\n    // 2nd arg is a heading that will be colour highlighted\n    const head = args.shift()\n\n    // Bind back to console.log (could use console[strLevel] but some levels ignore some formatting, use console.xxx directly or dedicated fn)\n    return Function.prototype.bind.call(\n        console[LOG_STYLES[strLevel].console],\n        console,\n        `%c${LOG_STYLES[strLevel].pre}${strLevel}%c [${head}]`, `${LOG_STYLES.level} ${LOG_STYLES[strLevel].css}`, `${LOG_STYLES.head} ${LOG_STYLES[strLevel].txtCss}`,\n        ...args\n    )\n}\n//#endregion\n\n/** A hack to dynamically load a remote module and wait until it is loaded\n * @param {string} url The URL of the module to load\n * @returns {object|null} Either the result object or null (if the load fails)\n */\n// function loadModule(url) { // eslint-disable-line no-unused-vars\n//     let done\n\n//     import(url)\n//         .then(res => {\n//             log('debug', '>> then >>', res)()\n//             done = res\n//         })\n//         .catch(err => {\n//             console.error(`[uibuilder:loadModule] Could not load module ${url}`, err)\n//             done = null\n//         })\n\n//     //  eslint-disable-next-line no-empty\n//     while (!done) { } // eslint-disable-line no-unmodified-loop-condition\n\n//     return done\n// }\n\n/** Makes a null or non-object into an object\n * If not null, moves \"thing\" to {payload:thing}\n *\n * @param {*} thing Thing to check\n * @param {string} [property='payload'] property that \"thing\" is moved to if not null and not an object\n * @returns {!object} _\n */\nfunction makeMeAnObject(thing, property) {\n    if (!property) property = 'payload'\n    if (typeof property !== 'string') {\n        log('warn', 'uibuilderfe:makeMeAnObject', `WARNING: property parameter must be a string and not: ${typeof property}`)()\n        property = 'payload'\n    }\n    let out = {}\n    if ( thing !== null && thing.constructor.name === 'Object' ) {\n        out = thing\n    } else if (thing !== null) {\n        out[property] = thing\n    }\n    return out\n} // --- End of make me an object --- //\n\n/** Joins all arguments as a URL string\n * see http://stackoverflow.com/a/28592528/3016654\n * since v1.0.10, fixed potential double // issue\n * arguments {string} URL fragments\n * @returns {string} _\n */\nfunction urlJoin() {\n    const paths = Array.prototype.slice.call(arguments)\n    const url = '/' + paths.map(function (e) {\n        return e.replace(/^\\/|\\/$/g, '')\n    })\n        .filter(function (e) {\n            return e\n        })\n        .join('/')\n    return url.replace('//', '/')\n} // ---- End of urlJoin ---- //\n\n/** Convert JSON to Syntax Highlighted HTML\n * @param {object} json A JSON/JavaScript Object\n * @returns {html} Object reformatted as highlighted HTML\n */\nfunction syntaxHighlight(json) {\n    if (json === undefined) {\n        json = '<span class=\"undefined\">undefined</span>'\n    } else {\n        try {\n            json = JSON.stringify(json, undefined, 4)\n            // json = json.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;') // eslint-disable-line newline-per-chained-call\n            json = json.replace(/(\"(\\\\u[a-zA-Z0-9]{4}|\\\\[^u]|[^\\\\\"])*\"(\\s*:)?|\\b(true|false|null)\\b|-?\\d+(?:\\.\\d*)?(?:[eE][+-]?\\d+)?)/g, function (match) { // eslint-disable-line prefer-named-capture-group\n                let cls = 'number'\n                if ((/^\"/).test(match)) {\n                    if ((/:$/).test(match)) {\n                        cls = 'key'\n                    } else {\n                        cls = 'string'\n                    }\n                } else if ((/true|false/).test(match)) {\n                    cls = 'boolean'\n                } else if ((/null/).test(match)) {\n                    cls = 'null'\n                }\n                return `<span class=\"${cls}\">${match}</span>`\n            })\n        } catch (e) {\n            json = `Syntax Highlight ERROR: ${e.message}`\n        }\n    }\n    return json\n}\n\n/** msg._ui handling functions */\nconst _ui = new Ui(window, log, syntaxHighlight)\n\n//#endregion --- Module-level utility functions --- //\n\n/** Define and export the Uib class - note that an instance of the class is also exported in the wrap-up\n * @typicalname uibuilder\n */\nexport const Uib = class Uib {\n\n    //#region --- Static variables ---\n    static _meta = {\n        version: version,\n        type: 'module',\n        displayName: 'uibuilder',\n    }\n    //#endregion ---- ---- ---- ----\n\n    //#region private class vars\n\n    // How many times has the loaded instance connected to Socket.IO (detect if not a new load?)\n    connectedNum = 0\n    // event listener callbacks by property name\n    // #events = {}\n    // Socket.IO channel names\n    _ioChannels = { control: 'uiBuilderControl', client: 'uiBuilderClient', server: 'uiBuilder' }\n    /** setInterval holder for pings @type {function|undefined} */\n    #pingInterval\n    // onChange event callbacks\n    #propChangeCallbacks = {}\n    // onTopic event callbacks\n    #msgRecvdByTopicCallbacks = {}\n    // Is Vue available?\n    isVue = false\n    // What version? Set in startup if Vue is loaded. Won't always work\n    vueVersion = undefined\n    /** setInterval id holder for Socket.IO checkConnect\n     * @type {number|null}\n     */\n    #timerid = null\n    // Holds the reference ID for the internal msg change event handler so that it can be cancelled\n    #MsgHandler\n    // Placeholder for io.socket - can't make a # var until # fns allowed in all browsers\n    _socket\n    // Placeholder for an observer that watches the whole DOM for changes - can't make a # var until # fns allowed in all browsers\n    _htmlObserver\n    // Has showMsg been turned on?\n    #isShowMsg = false\n    // Has showStatus been turned on?\n    #isShowStatus = false\n    // If true, URL hash changes send msg back to node-red. Controlled by watchUrlHash()\n    #sendUrlHash = false\n    // Externally accessible command functions (NB: Case must match) - remember to update _uibCommand for new commands\n    #extCommands = [\n        'elementExists', 'get', 'getManagedVarList', 'getWatchedVars', 'htmlSend', 'include',\n        'navigate', 'scrollTo', 'set', 'showMsg', 'showStatus', 'uiGet', 'uiWatch', 'watchUrlHash',\n    ]\n\n    /** @type {{[key: string]: string}} Managed uibuilder variables */\n    #managedVars = {}\n\n    // What status variables to show via showStatus()\n    #showStatus = {\n        online: { 'var': 'online', 'label': 'Online?', 'description': 'Is the browser online?', },\n        ioConnected: { 'var': 'ioConnected', 'label': 'Socket.IO connected?', 'description': 'Is Socket.IO connected?', },\n        connectedNum: { 'var': 'connectedNum', 'label': '# reconnections', 'description': 'How many times has Socket.IO had to reconnect since last page load?', },\n\n        clientId: { 'var': 'clientId', 'label': 'Client ID', 'description': 'Static client unique id set in Node-RED. Only changes when browser is restarted.', },\n        tabId: { 'var': 'tabId', 'label': 'Browser tab ID', 'description': 'Static unique id for the browser\\'s current tab', },\n        cookies: { 'var': 'cookies', 'label': 'Cookies', 'description': 'Cookies set in Node-RED', },\n        httpNodeRoot: { 'var': 'httpNodeRoot', 'label': 'httpNodeRoot', 'description': 'From Node-RED\\' settings.js, affects URL\\'s. May be wrong for pages in sub-folders', },\n        pageName: { 'var': 'pageName', 'label': 'Page name', 'description': 'Actual name of this page', },\n\n        ioNamespace: { 'var': 'ioNamespace', 'label': 'SIO namespace', 'description': 'Socket.IO namespace - unique to each uibuilder node instance', },\n        // ioPath: { 'var': 'ioPath', 'label': 'SIO path', 'description': '', }, // no longer needed in the modern client\n        socketError: { 'var': 'socketError', 'label': 'Socket error', 'description': 'If the Socket.IO connection has failed, says why', },\n\n        msgsSent: { 'var': 'msgsSent', 'label': '# msgs sent', 'description': 'How many standard messages have been sent to Node-RED?', },\n        msgsReceived: { 'var': 'msgsReceived', 'label': '# msgs received', 'description': 'How many standard messages have been received from Node-RED?', },\n        msgsSentCtrl: { 'var': 'msgsSentCtrl', 'label': '# control msgs sent', 'description': 'How many control messages have been sent to Node-RED?', },\n        msgsCtrlReceived: { 'var': 'msgsCtrlReceived', 'label': '# control msgs received', 'description': 'How many control messages have been received from Node-RED?', },\n        originator: { 'var': 'originator', 'label': 'Node Originator', 'description': 'If the last msg from Node-RED was from a `uib-sender` node, this will be its node id so that messasges can be returned to it', },\n        topic: { 'var': 'topic', 'label': 'Default topic', 'description': 'Optional default topic to be included in outgoing standard messages', },\n\n        started: { 'var': 'started', 'label': 'Has uibuilder client started?', 'description': 'Whether `uibuilder.start()` ran successfully. This should self-run and should not need to be run manually', },\n        version: { 'var': 'version', 'label': 'uibuilder client version', 'description': 'The version of the loaded uibuilder client library', },\n        serverTimeOffset: { 'var': 'serverTimeOffset', 'label': 'Server time offset (Hrs)', 'description': 'The number of hours difference between the Node-red server and the client', },\n    }\n\n    // Track ui observers (see uiWatch)\n    #uiObservers = {}\n\n    //#endregion\n\n    //#region public class vars\n\n    // TODO Move to proper getters\n    //#region ---- Externally read-only (via .get method) ---- //\n    // version - moved to _meta\n    /** Client ID set by uibuilder on connect */\n    clientId = ''\n    /** The collection of cookies provided by uibuilder */\n    cookies = {}\n    /** Copy of last control msg object received from sever */\n    ctrlMsg = {}\n    /** Is Socket.IO client connected to the server? */\n    ioConnected = false\n    // Is the browser tab containing this page visible or not?\n    isVisible = false\n    // Remember the last page (re)load/navigation type: navigate, reload, back_forward, prerender\n    lastNavType = ''\n    /** Last std msg received from Node-RED */\n    msg = {}\n    /** number of messages sent to server since page load */\n    msgsSent = 0\n    /** number of messages received from server since page load */\n    msgsReceived = 0\n    /** number of control messages sent to server since page load */\n    msgsSentCtrl = 0\n    /** number of control messages received from server since page load */\n    msgsCtrlReceived = 0\n    /** Is the client online or offline? */\n    online = navigator.onLine\n    /** last control msg object sent via uibuilder.send() @since v2.0.0-dev3 */\n    sentCtrlMsg = {}\n    /** last std msg object sent via uibuilder.send() */\n    sentMsg = {}\n    /** placeholder to track time offset from server, see fn socket.on(ioChannels.server ...) */\n    serverTimeOffset = null\n    /** placeholder for a socket error message */\n    socketError = null\n    // tab identifier from session storage\n    tabId = ''\n    // Actual name of current page (set in constructor)\n    pageName = null\n    // Is the DOMPurify library loaded? Updated in start()\n    purify = false\n    // Is the Markdown-IT library loaded? Updated in start()\n    markdown = false\n    // Current URL hash. Initial set is done from start->watchHashChanges via a set to make it watched\n    urlHash = location.hash\n    //#endregion ---- ---- ---- ---- //\n\n    // TODO Move to proper getters/setters\n    //#region ---- Externally Writable (via .set method, read via .get method) ---- //\n    /** Default originator node id - empty string by default\n     * @type {string}\n     */\n    originator = ''\n    /** Default topic - used by send if set and no topic provided\n     * @type {(string|undefined)}\n     */\n    topic = undefined\n    //#endregion ---- ---- ---- ---- //\n\n    //#region ---- These are unlikely to be needed externally: ----\n    autoSendReady = true\n    httpNodeRoot = '' // Node-RED setting (via cookie)\n    ioNamespace = ''\n    ioPath = ''\n    retryFactor = 1.5       // starting delay factor for subsequent reconnect attempts\n    retryMs = 2000          // starting retry ms period for manual socket reconnections workaround\n    storePrefix = 'uib_'    // Prefix for all uib-related localStorage\n    started = false\n    // NOTE: These can only change when a client (re)connects\n    socketOptions = {\n        path: this.ioPath,\n        transports: ['polling', 'websocket'],\n        // Using callback so that they are updated automatically on (re)connect\n        // Only put things in here that will be valid for a websocket connected session\n        auth: (cb) => {\n            cb({ // eslint-disable-line n/no-callback-literal\n                clientVersion: version,\n                clientId: this.clientId,\n                pathName: window.location.pathname,\n                urlParams: Object.fromEntries(new URLSearchParams(location.search)),\n                pageName: this.pageName,\n                tabId: this.tabId,\n                lastNavType: this.lastNavType,\n                connectedNum: ++this.connectedNum,\n                // Used to calculate the diff between the server and client connection timestamps - reported if >1 minute\n                browserConnectTimestamp: (new Date()).toISOString(),\n            })\n        },\n        transportOptions: {\n            // Can only set headers when polling\n            polling: {\n                extraHeaders: {\n                    'x-clientid': `${Uib._meta.displayName}; ${Uib._meta.type}; ${Uib._meta.version}; ${this.clientId}`,\n                }\n            },\n        },\n    }\n    //#endregion -- not external --\n\n    //#endregion --- End of variables ---\n\n    //#region ------- Getters and Setters ------- //\n\n    // Change logging level dynamically (affects both console. and print.)\n    set logLevel(level) { logLevel = level; console.log('%c\u2757 info%c [logLevel]', `${LOG_STYLES.level} ${LOG_STYLES.info.css}`, `${LOG_STYLES.head} ${LOG_STYLES.info.txtCss}`, `Set to ${level} (${LOG_STYLES.names[level]})`) /* changeLogLevel(level)*/ }\n    get logLevel() { return logLevel }\n\n    get meta() { return Uib._meta }\n\n    /** Function to set uibuilder properties to a new value - works on any property except _* or #*\n     * Also triggers any event listeners.\n     * Example: this.set('msg', {topic:'uibuilder', payload:42});\n     * @param {string} prop Any uibuilder property who's name does not start with a _ or #\n     * @param {*} val The set value of the property or a string declaring that a protected property cannot be changed\n     * @param {boolean} [store] If true, the variable is also saved to the browser localStorage if possible\n     * @param {boolean} [autoload] If true & store is true, on load, uib will try to restore the value from the store automatically\n     * @returns {*} Input value\n     */\n    set(prop, val, store = false, autoload = false) {\n        // Check for excluded properties - we don't want people to set these\n        // if (this.#excludedSet.indexOf(prop) !== -1) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:set', `Cannot use set() on protected property \"${prop}\"`)()\n            return `Cannot use set() on protected property \"${prop}\"`\n        }\n\n        // We must add the var to the uibuilder object\n        this[prop] = val\n\n        // Keep track of all managed variables\n        this.#managedVars[prop] = prop\n\n        // If requested, save to store\n        if (store === true) this.setStore(prop, val, autoload)\n\n        log('trace', 'Uib:set', `prop set - prop: ${prop}, val: `, val, ` store: ${store}, autoload: ${autoload}`)()\n\n        // Trigger this prop's event callbacks (listeners which are set by this.onChange)\n        // this.emit(prop, val)\n\n        // trigger an event on the prop name, pass both the name and value to the event details\n        this._dispatchCustomEvent('uibuilder:propertyChanged', { 'prop': prop, 'value': val, 'store': store, 'autoload': autoload })\n\n        return val\n    }\n\n    /** Function to get the value of a uibuilder property\n     * Example: uibuilder.get('msg')\n     * @param {string} prop The name of the property to get as long as it does not start with a _ or #\n     * @returns {*|undefined} The current value of the property\n     */\n    get(prop) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:get', `Cannot use get() on protected property \"${prop}\"`)()\n            return\n        }\n        if (prop === 'version') return Uib._meta.version\n        if (prop === 'msgsCtrl') return this.msgsCtrlReceived\n        if (prop === 'reconnections') return this.connectedNum\n        if (this[prop] === undefined) {\n            log('warn', 'Uib:get', `get() - property \"${prop}\" is undefined`)()\n        }\n        return this[prop]\n    }\n\n    /** Write to localStorage if possible. console error output if can't write\n     * Also uses this.storePrefix\n     * @example\n     *   uibuilder.setStore('fred', 42)\n     *   console.log(uibuilder.getStore('fred'))\n     * @param {string} id localStorage var name to be used (prefixed with 'uib_')\n     * @param {*} value value to write to localstore\n     * @param {boolean} [autoload] If true, on load, uib will try to restore the value from the store\n     * @returns {boolean} True if succeeded else false\n     */\n    setStore(id, value, autoload = false) {\n        let autoVars = {}\n        if (autoload === true) {\n            try {\n                autoVars = this.getStore('_uibAutoloadVars') || {}\n            } catch (e) {}\n        }\n        if (typeof value === 'object') {\n            try {\n                value = JSON.stringify(value)\n            } catch (e) {\n                log('error', 'Uib:setStore', 'Cannot stringify object, not storing. ', e)()\n                return false\n            }\n        }\n        try {\n            localStorage.setItem(this.storePrefix + id, value)\n            if (autoload) {\n                autoVars[id] = id\n                try {\n                    localStorage.setItem(this.storePrefix + '_uibAutoloadVars', JSON.stringify(autoVars))\n                } catch (e) {\n                    log('error', 'Uib:setStore', 'Cannot save autoload list. ', e)()\n                }\n            }\n            this._dispatchCustomEvent('uibuilder:propertyStored', { 'prop': id, 'value': value, 'autoload': autoload })\n            return true\n        } catch (e) {\n            log('error', 'Uib:setStore', 'Cannot write to localStorage. ', e)()\n            return false\n        }\n    } // --- end of setStore --- //\n\n    /** Attempt to get and re-hydrate a key value from localStorage\n     * Note that all uib storage is automatically prefixed using this.storePrefix\n     * @param {*} id The key of the value to attempt to retrieve\n     * @returns {*|null|undefined} The re-hydrated value of the key or null if key not found, undefined on error\n     */\n    getStore(id) {\n        try {\n            // @ts-ignore\n            return JSON.parse(localStorage.getItem(this.storePrefix + id))\n        } catch (e) { }\n        try {\n            return localStorage.getItem(this.storePrefix + id)\n        } catch (e) {\n            return undefined\n        }\n    }\n\n    /** Remove a given id from the uib keys in localStorage\n     * @param {*} id The key to remove\n     */\n    removeStore(id) {\n        try {\n            localStorage.removeItem(this.storePrefix + id)\n        } catch (e) { }\n    }\n\n    /** Returns a list of uibuilder properties (variables) that can be watched with onChange\n     * @returns {{[key: string]: string}} List of uibuilder managed variables\n     */\n    getManagedVarList() {\n        return this.#managedVars\n    }\n\n    getWatchedVars() {\n        return Object.keys(this.#propChangeCallbacks)\n    }\n\n    //#endregion ------- -------- ------- //\n\n    //#region ------- Our own event handling system ---------- //\n\n    // TODO Add option to send event details back to Node-RED as uib ctrl msg\n    /** Standard fn to create a custom event with details & dispatch it\n     * @param {string} title The event name\n     * @param {*} details Any details to pass to event output\n     */\n    _dispatchCustomEvent(title, details) {\n        const event = new CustomEvent(title, { detail: details })\n        document.dispatchEvent(event)\n    }\n\n    // See the this.#propChangeCallbacks & msgRecvdByTopicCallbacks private vars\n\n    /** Register on-change event listeners for uibuilder tracked properties\n     * Make it possible to register a function that will be run when the property changes.\n     * Note that you can create listeners for non-existant properties\n     * @example: uibuilder.onChange('msg', (msg) => { console.log('uibuilder.msg changed! It is now: ', msg) })\n     *\n     * @param {string} prop The property of uibuilder that we want to monitor\n     * @param {Function} callback The function that will run when the property changes, parameter is the new value of the property after change\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelChange if you need to remove a listener\n     */\n    onChange(prop, callback) {\n        // Note: Property does not have to exist yet\n\n        // console.debug(`[Uib:onchange] pushing new callback (event listener) for property: ${prop}`)\n\n        // Create a new array or add to the array of callback functions for the property in the events object\n        // if (this.#events[prop]) {\n        //     this.#events[prop].push(callback)\n        // } else {\n        //     this.#events[prop] = [callback]\n        // }\n\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#propChangeCallbacks[prop]) this.#propChangeCallbacks[prop] = { _nextRef: 1 }\n        else this.#propChangeCallbacks[prop]._nextRef++\n\n        const nextCbRef = this.#propChangeCallbacks[prop]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const propChangeCallback = this.#propChangeCallbacks[prop][nextCbRef] = function propChangeCallback(e) {\n            // If the prop name matches the 1st arg in the onChange fn:\n            if (prop === e.detail.prop) {\n                const value = e.detail.value\n                // console.warn('[Uib:onChange:evt] uibuilder:propertyChanged. ', e.detail)\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(value, value)\n            }\n        }\n\n        document.addEventListener('uibuilder:propertyChanged', propChangeCallback)\n\n        return nextCbRef\n    } // ---- End of onChange() ---- //\n\n    cancelChange(prop, cbRef) {\n        document.removeEventListener('uibuilder:propertyChanged', this.#propChangeCallbacks[prop][cbRef])\n        delete this.#propChangeCallbacks[prop][cbRef]\n        // this.#propChangeCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Register a change callback for a specific msg.topic\n     * Similar to onChange but more convenient if needing to differentiate by msg.topic.\n     * @example: let otRef = uibuilder.onTopic('mytopic', function(){ console.log('Received a msg with msg.topic=`mytopic`. msg: ', this) })\n     * To cancel a change listener: uibuilder.cancelTopic('mytopic', otRef)\n     *\n     * @param {string} topic The msg.topic we want to listen for\n     * @param {Function} callback The function that will run when an appropriate msg is received. `this` inside the callback as well as the cb's single argument is the received msg.\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelTopic if you need to remove a listener\n     */\n    onTopic(topic, callback) {\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#msgRecvdByTopicCallbacks[topic]) this.#msgRecvdByTopicCallbacks[topic] = { _nextRef: 1 }\n        else this.#msgRecvdByTopicCallbacks[topic]._nextRef++\n\n        const nextCbRef = this.#msgRecvdByTopicCallbacks[topic]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const msgRecvdEvtCallback = this.#msgRecvdByTopicCallbacks[topic][nextCbRef] = function msgRecvdEvtCallback(e) {\n            const msg = e.detail\n            // console.log('[Uib:onTopic:evt] uibuilder:stdMsgReceived where topic matches. ', e.detail)\n            if (msg.topic === topic) {\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(msg, msg)\n            }\n        }\n\n        document.addEventListener('uibuilder:stdMsgReceived', msgRecvdEvtCallback)\n\n        return nextCbRef\n    }\n\n    cancelTopic(topic, cbRef) {\n        document.removeEventListener('uibuilder:stdMsgReceived', this.#msgRecvdByTopicCallbacks[topic][cbRef])\n        delete this.#msgRecvdByTopicCallbacks[topic][cbRef]\n        // this.#msgRecvdCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Trigger event listener for a given property\n     * Called when uibuilder.set is used\n     *\n     * @param {*} prop The property for which to run the callback functions\n     * arguments: Additional arguments contain the value to pass to the event callback (e.g. newValue)\n     */\n    // emit(prop) {\n    //     var evt = this.#events[prop]\n    //     if (!evt) {\n    //         return\n    //     }\n    //     var args = Array.prototype.slice.call(arguments, 1)\n    //     for (var i = 0; i < evt.length; i++) {\n    //         evt[i].apply(this, args)\n    //     }\n    //     log('trace', 'Uib:emit', `${evt.length} listeners run for prop ${prop} `)()\n    // }\n\n    /** Forcibly removes all event listeners from the events array\n     * Use if you need to re-initialise the environment\n     */\n    // clearEventListeners() {\n    //     this.#events = []\n    // } // ---- End of clearEventListeners() ---- //\n\n    /** Clear a single property event listeners\n     * @param {string} prop The property of uibuilder for which we want to clear the event listener\n     */\n    // clearListener(prop) {\n    //     if (this.#events[prop]) delete this.#events[prop]\n    // }\n\n    //#endregion ---------- End of event handling system ---------- //\n\n    //#region ------- General Utility Functions -------- //\n\n    /** Check supplied msg from server for a timestamp - if received, work out & store difference to browser time\n     * @param {object} receivedMsg A message object recieved from Node-RED\n     * @returns {void} Updates self.serverTimeOffset if different to previous value\n     */\n    _checkTimestamp(receivedMsg) {\n        if (Object.prototype.hasOwnProperty.call(receivedMsg, 'serverTimestamp')) {\n            const serverTimestamp = new Date(receivedMsg.serverTimestamp)\n            // @ts-ignore\n            const offset = Math.round(((new Date()) - serverTimestamp) / 3600000) // in ms /3.6m to get hours\n            if (offset !== this.serverTimeOffset) {\n                log('trace', `Uib:checkTimestamp:${this._ioChannels.server} (server)`, `Offset changed to: ${offset} from: ${this.serverTimeOffset}`)()\n                this.set('serverTimeOffset', offset)\n            }\n        }\n    }\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {*} Selected HTML element or null\n     */\n    $(cssSelector) {\n        /** @type {*} Some kind of HTML element */\n        let el = document.querySelector(cssSelector)\n\n        if (!el) {\n            log(1, 'Uib:$', `No element found for CSS selector ${cssSelector}`)()\n            return null\n        }\n\n        if ( el.nodeName === 'TEMPLATE' ) {\n            el = el.content.firstElementChild\n            if (!el) {\n                log(0, 'Uib:$', `Template selected for CSS selector ${cssSelector} but it is empty`)()\n                return null\n            }\n        }\n\n        return el\n    }\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {*} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {Array} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$(cssSelector) {\n        return Array.from(document.querySelectorAll(cssSelector))\n    }\n\n    /** Set the default originator. Set to '' to ignore. Used with uib-sender.\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    setOriginator(originator = '') {\n        this.set('originator', originator)\n    } // ---- End of setOriginator ---- //\n\n    /** HTTP Ping/Keep-alive - makes a call back to uibuilder's ExpressJS server and receives a 204 response\n     * Can be used to keep sessions alive.\n     * @example\n     *   uibuilder.setPing(2000) // repeat every 2 sec. Re-issue with ping(0) to turn off repeat.\n     *   uibuilder.onChange('ping', function(data) {\n     *      console.log('pinger', data)\n     *   })\n     * @param {number} ms Repeat interval in ms\n     */\n    setPing(ms = 0) {\n        const oReq = new XMLHttpRequest()\n        oReq.addEventListener('load', () => {\n            const headers = (oReq.getAllResponseHeaders()).split('\\r\\n')\n            const elapsedTime = Number(new Date()) - Number((oReq.responseURL.split('='))[1])\n            this.set('ping', {\n                success: !!((oReq.status === 201) || (oReq.status === 204)), // true if one of the listed codes else false\n                status: oReq.status,\n                headers: headers,\n                url: oReq.responseURL,\n                elapsedTime: elapsedTime,\n            })\n        })\n\n        if (this.#pingInterval) {\n            clearInterval(this.#pingInterval)\n            this.#pingInterval = undefined\n        }\n\n        oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n        oReq.send()\n\n        if (ms > 0) {\n            this.#pingInterval = setInterval(() => {\n                oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n                oReq.send()\n            }, ms)\n        }\n    } // ---- End of ping ---- //\n\n    log() {\n        log(...arguments)()\n    }\n\n    /** Convert JSON to Syntax Highlighted HTML\n     * @param {object} json A JSON/JavaScript Object\n     * @returns {html} Object reformatted as highlighted HTML\n     */\n    syntaxHighlight(json) {\n        return syntaxHighlight(json)\n    } // --- End of syntaxHighlight --- //\n\n    /** Copies a uibuilder variable to the browser clipboard\n     * @param {string} varToCopy The name of the uibuilder variable to copy to the clipboard\n     */\n    copyToClipboard(varToCopy) {\n        let data = ''\n        try {\n            console.log(this.get(varToCopy), JSON.stringify(this.get(varToCopy)))\n            data = JSON.stringify(this.get(varToCopy))\n        } catch (e) {\n            log('error', 'copyToClipboard', `Could not copy \"${varToCopy}\" to clipboard.`, e.message)()\n        }\n        navigator.clipboard.writeText(data)\n    } // --- End of copyToClipboard --- //\n\n    /** DEPRECATED FOR NOW - wasn't working properly.\n     * Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.\n     * Requires IntersectionObserver (available to all mainstream browsers from early 2019)\n     * Automatically sends a msg back to Node-RED.\n     * Requires the element to already exist.\n     */\n    elementIsVisible() {\n        const info = 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'\n        log('error', 'uib:elementIsVisible', info)()\n        this.send({payload: 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'})\n        return false\n    } // --- End of elementIsVisible --- //\n\n    /** Does the chosen CSS Selector currently exist?\n     * Automatically sends a msg back to Node-RED unless turned off.\n     * @param {string} cssSelector Required. CSS Selector to examine for visibility\n     * @param {boolean} [msg] Optional, default=true. If true also sends a message back to Node-RED\n     * @returns {boolean} True if the element exists\n     */\n    elementExists(cssSelector, msg = true) {\n        const el = document.querySelector(cssSelector)\n\n        let exists = false\n        if (el !== null) exists = true\n\n        if (msg === true) {\n            this.send({\n                payload: exists,\n                info: `Element \"${cssSelector}\" ${exists ? 'exists' : 'does not exist'}`\n            })\n        }\n\n        return exists\n    } // --- End of elementExists --- //\n\n    /** Only keep the URL Hash & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return '#' + url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Set up an event listener to watch for hash changes\n     * and set the watchable urlHash variable\n     */\n    _watchHashChanges() {\n        this.set('urlHash', location.hash)\n        window.addEventListener('hashchange', (event) => {\n            this.set('urlHash', location.hash)\n            if (this.#sendUrlHash === true) {\n                this.send({ topic: 'hashChange', payload: location.hash, newHash: this.keepHashFromUrl(event.newURL), oldHash: this.keepHashFromUrl(event.oldURL) })\n            }\n        })\n    }\n\n    /** Returns true/false or a default value for truthy/falsy and other values\n     * @param {string|number|boolean|*} val The value to test\n     * @param {any} deflt Default value to use if the value is not truthy/falsy\n     * @returns {boolean|any} The truth! Or the default\n     */\n    truthy(val, deflt) {\n        let ret\n        if (['on', 'On', 'ON', 'true', 'True', 'TRUE', '1', true, 1].includes(val)) ret = true\n        else if (['off', 'Off', 'OFF', 'false', 'False', 'FALSE', '0', false, 0].includes(val)) ret = false\n        else ret = deflt\n        return ret\n    }\n\n    /** Turn on/off/toggle sending URL hash changes back to Node-RED\n     * @param {string|number|boolean|undefined} [toggle] Optional on/off/etc\n     * @returns {boolean} True if we will send a msg to Node-RED on a hash change\n     */\n    watchUrlHash(toggle) {\n        this.#sendUrlHash = this.truthy(toggle, this.#sendUrlHash !== true)\n        return this.#sendUrlHash\n    }\n\n    /** Navigate to a new page or a new route (hash)\n     * @param {string} url URL to navigate to. Can be absolute or relative (to current page) or just a hash for a route change\n     * @returns {Location} The new window.location string\n     */\n    navigate(url) {\n        if (url) window.location.href = url\n        return window.location\n    }\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- UI handlers --------- //\n\n    //#region -- Direct to _ui --\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        _ui.ui(json)\n    }\n\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        _ui.replaceSlot(el, component)\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        _ui.replaceSlotMarkdown(el, component)\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        return _ui.convertMarkdown(mdText)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        return _ui.sanitiseHTML(html)\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        _ui.loadScriptSrc(url)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        _ui.loadStyleSrc(url)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        _ui.loadScriptTxt(textFn)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        _ui.loadStyleTxt(textFn)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) {\n        _ui.showDialog(type, ui, msg)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        _ui.loadui(url)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        return _ui.uiGet(cssSelector, propName)\n    }\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     */\n    async include(url, uiOptions) {\n        _ui.include(url, uiOptions)\n    }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} component Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, component) {\n        _ui.uiEnhanceElement(el, component)\n    }\n\n    //#endregion -- direct to _ui --\n\n    /** * Show/hide a display card on the end of the visible HTML that will dynamically display the last incoming msg from Node-RED\n     * The card has the id `uib_last_msg`. Updates are done from a listener set up in the start function.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showMsg(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowMsg\n        this.#isShowMsg = showHide\n        let slot = 'Waiting for a message from Node-RED'\n\n        if (this.msg && Object.keys(this.msg).length > 0) {\n            slot = this.syntaxHighlight(this.msg)\n        }\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_last_msg_wrap',\n                ],\n            })\n        } else {\n            _ui._uiReplace({\n                components: [\n                    {\n                        type: 'div',\n                        id: 'uib_last_msg_wrap',\n                        parent: parent,\n                        attributes: {\n                            title: 'Last message from Node-RED',\n                        },\n                        components: [\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.copyToClipboard(\"msg\")',\n                                    class: 'compact',\n                                    style: 'right:3em;',\n                                },\n                                slot: '\uD83D\uDCCB',\n                            },\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.showMsg()',\n                                    class: 'compact',\n                                    style: 'right:.5em;',\n                                },\n                                slot: '\u26D4',\n                            },\n                            {\n                                type: 'pre',\n                                id: 'uib_last_msg',\n                                // parent: 'uib_last_msg_wrap',\n                                attributes: {\n                                    class: 'syntax-highlight',\n                                },\n                                slot: slot,\n                            },\n                        ],\n                    },\n                ],\n            })\n        }\n\n        return showHide\n    }\n\n    /** Show a browser notification if possible.\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * @example uibuilder.notify( 'My simple message to the user' )\n     * @example uibuilder.notify( {topic: 'My Title', payload: 'My simple message to the user'} )\n     * @example uibuilder.notify( {title: 'My Title', body: 'My simple message to the user'} )\n     * @example // If config.return = true, a promise is returned.\n     * // The resolved promise is only returned if the notification is clicked by the user.\n     * // Can be used to send the response back to Node-RED\n     * uibuilder.notify(notifyConfig).then( res => uibuilder.eventSend(res) )\n     * @ref https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config data or simple message string\n     * @returns {Promise<Event>|null} A promise that resolves to the click event or null\n     */\n    notify(config) {\n        if (config.return) return _ui.notification(config)\n\n        _ui.notification(config)\n            .then( res => { // eslint-disable-line promise/always-return\n                log('info', 'Uib:notification', 'Notification completed event', res)()\n                // if (config.return) return res\n            })\n            .catch( err => {\n                log('error', 'Uib:notification', 'Notification error event', err)()\n            })\n        return null\n    }\n\n    /** Scroll the page\n     * https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollIntoView\n     * @param {string} [cssSelector] Optional. If not set, scrolls to top of page.\n     * @param {{block:(string|undefined),inline:(string|undefined),behavior:(string|undefined)}} [opts] Optional. DOM scrollIntoView options\n     * @returns {boolean} True if element was found, false otherwise\n     */\n    scrollTo(cssSelector, opts) {\n        // @ts-ignore\n        if (!opts) opts = {}\n        if (!cssSelector || cssSelector === 'top'  || cssSelector === 'start') cssSelector = 'body'\n        else if (cssSelector === 'bottom' || cssSelector === 'end') {\n            cssSelector = 'body'\n            opts.block = 'end'\n        }\n        const el = this.$(cssSelector)\n        if (el) {\n            el.scrollIntoView(opts)\n            return true\n        }\n        return false\n    }\n\n    /** Show/hide a display card on the end of the visible HTML that will dynamically display the current status of the uibuilder client\n     * The card has the id `uib_status`.\n     * The display is updated by an event listener created in the class constructor.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showStatus(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowStatus\n        this.#isShowStatus = showHide\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_status',\n                ],\n            })\n            return showHide\n        }\n\n        const root = {\n            components: [\n                {\n                    type: 'div',\n                    id: 'uib_status',\n                    parent: parent,\n                    attributes: {\n                        title: 'Current status of the uibuilder client',\n                        class: 'text-smaller',\n                    },\n                    components: [\n                        {\n                            'type': 'table',\n                            'components': [\n                                {\n                                    'type': 'tbody',\n                                    'components': []\n                                }\n                            ]\n                        }\n                    ]\n                }\n            ]\n        }\n        const details = root.components[0].components[0].components[0].components\n\n        Object.values(this.#showStatus).forEach( entry => {\n            details.push({\n                'type': 'tr',\n                'attributes': {\n                    title: entry.description,\n                },\n                'components': [\n                    {\n                        'type': 'th',\n                        'slot': entry.label,\n                    },\n                    {\n                        'type': 'td',\n                        'attributes': {\n                            'data-varType': entry.var,\n                        },\n                        'slot': entry.var === 'version' ? Uib._meta.version : JSON.stringify(this[entry.var]),\n                    }\n                ],\n            })\n        })\n\n        _ui._uiReplace(root)\n\n        return showHide\n    }\n\n    /** Use the Mutation Observer browser API to watch for changes to a single element on the page.\n     * OMG! It is sooo hard to turn the data into something that successfully serialises so it can be sent back to Node-RED!\n     * NB: Each cssSelector creates a unique watcher. Sending the same selector overwrites the previous one.\n     * @param {string} cssSelector A CSS Selector that selects the element to watch for changes\n     * @param {boolean|\"toggle\"} [startStop] true=start watching the DOM, false=stop. Default='toggle'\n     * @param {boolean} [send] true=Send changes to Node-RED, false=Don't send. Default=true\n     * @param {boolean} [showLog] true=Output changes to log, false=stop. Default=true. Log level is 2 (Info)\n     * @returns {boolean} True if the watch is on, false otherwise\n     */\n    uiWatch(cssSelector, startStop = 'toggle', send = true, showLog = true) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.querySelector(cssSelector)\n        if (!targetNode) {\n            log('warn', 'uibuilder.module.js:uiWatch', `CSS Selector '${cssSelector}' not found.`)()\n            return false\n        }\n\n        if (startStop === 'toggle' || startStop === undefined || startStop === null) {\n            if (this.#uiObservers[cssSelector]) startStop = false\n            else startStop = true\n        }\n\n        // Need a ref to the Uib this\n        const that = this\n\n        if (startStop === true) {\n            // Create an observer instance\n            this.#uiObservers[cssSelector] = new MutationObserver( function( mutationList /* , observer */ ) {\n                const out = []\n\n                mutationList.forEach( mu => {\n                    // console.log({ mu })\n                    const oMu = {\n                        type: mu.type,\n                        oldValue: mu.oldValue !== null ? mu.oldValue : undefined,\n                    }\n\n                    if (mu.addedNodes.length > 0) {\n                        oMu.addedNodes = []\n                        mu.addedNodes.forEach( (an, i) => {\n                            oMu.addedNodes.push(_ui.nodeGet(mu.addedNodes[i]))\n                        })\n                    }\n\n                    if (mu.removedNodes.length > 0) {\n                        oMu.removedNodes = []\n                        mu.removedNodes.forEach( (an, i) => {\n                            oMu.removedNodes.push(_ui.nodeGet(mu.removedNodes[i]))\n                        })\n                    }\n\n                    if ( mu.type === 'attributes' ) {\n                        oMu.attributeName = mu.attributeName\n                        // @ts-ignore\n                        oMu.newValue = mu.target.attributes[mu.attributeName].value\n                    }\n\n                    out.push(oMu)\n                })\n\n                // Custom event\n                that._dispatchCustomEvent('uibuilder:domChange', out)\n                // Send a msg back to node-red\n                if (send === true) {\n                    that.send({\n                        _ui: {\n                            cssSelector: cssSelector,\n                            uiChanges: out\n                        },\n                        topic: that.topic || `DOM Changes for '${cssSelector}'`,\n                    })\n                }\n                // Log to info\n                if (showLog === true) {\n                    log('info', 'uibuilder.module.js:uiWatch', `DOM Changes for '${cssSelector}'`, { uiChanges: out }, { mutationList })()\n                }\n            } )\n\n            // Start observing the target node for configured mutations\n            this.#uiObservers[cssSelector].observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:uiWatch', `Started Watching DOM changes for '${cssSelector}'`)()\n        } else {\n            this.#uiObservers[cssSelector].disconnect()\n            delete this.#uiObservers[cssSelector]\n            log('trace', 'uibuilder.module.js:uiWatch', `Stopped Watching DOM changes for '${cssSelector}'`)()\n        }\n\n        return startStop\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- HTML cache and DOM watch --------- //\n\n    /** Clear the saved DOM from localStorage */\n    clearHtmlCache() {\n        this.removeStore('htmlCache')\n        log('trace', 'uibuilder.module.js:clearHtmlCache', 'HTML cache cleared')()\n    }\n\n    /** Restore the complete DOM (the whole web page) from browser localStorage if available */\n    restoreHtmlFromCache() {\n        // Is the html cached? If so, restore it\n        const htmlCache = this.getStore('htmlCache')\n        if (htmlCache) {\n            const targetNode = document.getElementsByTagName('html')[0]\n            // Restore the entire HTML\n            targetNode.innerHTML = htmlCache\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'Restored HTML from cache')()\n        } else {\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'No cache to restore')()\n        }\n    }\n\n    /** Save the current DOM state to browser localStorage.\n     * localStorage is persistent and so can be recovered even after a browser restart.\n     */\n    saveHtmlCache() {\n        // Save the updated entire HTML in localStorage\n        this.setStore('htmlCache', document.documentElement.innerHTML)\n    }\n\n    /** Use the Mutation Observer browser API to watch for and save changes to the HTML\n     * Once the observer is created, it will be reused.\n     * Sending true or undefined will turn on the observer, false turns it off.\n     * saveHtmlCache is called whenever anything changes in the dom. This allows\n     * users to call restoreHtmlFromCache() on page load if desired to completely reload\n     * to the last saved state.\n     * @param {boolean} startStop true=start watching the DOM, false=stop\n     */\n    watchDom(startStop) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.documentElement\n\n        // Need a ref to the Uib this\n        const that = this\n\n        // Create an observer instance\n        if (!this._htmlObserver) {\n            this._htmlObserver = new MutationObserver( function(/* mutationList, observer */) {\n                // We don't need to know the details - so kill off any outstanding mutation records\n                this.takeRecords()\n                // Save the updated entire HTML in localStorage\n                that.saveHtmlCache()\n            } )\n        }\n\n        if (startStop === true || startStop === undefined) {\n            // Start observing the target node for configured mutations\n            this._htmlObserver.observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:watchDom', 'Started Watching and saving DOM changes')()\n        } else {\n            this._htmlObserver.disconnect()\n            log('trace', 'uibuilder.module.js:watchDom', 'Stopped Watching and saving DOM changes')()\n        }\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- Message Handling (To/From Node-RED) -------- //\n\n    /** Internal send fn. Send a standard or control msg back to Node-RED via Socket.IO\n     * NR will generally expect the msg to contain a payload topic\n     * @param {object} msgToSend The msg object to send.\n     * @param {string} [channel=uiBuilderClient] The Socket.IO channel to use, must be in self.ioChannels or it will be ignored\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    _send(msgToSend, channel, originator = '') {\n        if (channel === null || channel === undefined) channel = this._ioChannels.client\n\n        // Make sure msgToSend is an object\n        if (channel === this._ioChannels.client) {\n            msgToSend = makeMeAnObject(msgToSend, 'payload')\n        } else if (channel === this._ioChannels.control) {\n            msgToSend = makeMeAnObject(msgToSend, 'uibuilderCtrl')\n            if (!Object.prototype.hasOwnProperty.call(msgToSend, 'uibuilderCtrl')) {\n                msgToSend.uibuilderCtrl = 'manual send'\n            }\n            // help remember where this came from as ctrl msgs can come from server or client\n            msgToSend.from = 'client'\n        }\n\n        /** since 2020-01-02 Added _socketId which should be the same as the _socketId on the server */\n        msgToSend._socketId = this._socket.id\n\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n\n        // Add the originator metadata if required\n        if (originator === '' && this.originator !== '') originator = this.originator\n        if (originator !== '') Object.assign(msgToSend, { '_uib': { 'originator': originator } })\n\n        // If the msg does not have a topic - see if we want to add one\n        if ( !Object.prototype.hasOwnProperty.call(msgToSend, 'topic') ) {\n            // From the default (`uibuilder.set('topic', 'some topic')`)\n            if (this.topic !== undefined && this.topic !== '') msgToSend.topic = this.topic\n            else {\n                // Did the last inbound msg have a topic?\n                if ( Object.prototype.hasOwnProperty.call(this, 'msg') && Object.prototype.hasOwnProperty.call(this.msg, 'topic') ) {\n                    msgToSend.topic = this.msg.topic\n                }\n            }\n        }\n\n        // If a standard send & _ui property exists, make sure to add _ui.from = 'client'\n        if (msgToSend._ui) msgToSend._ui.from = 'client'\n\n        // Track how many messages have been sent & last msg sent\n        let numMsgs\n        if (channel === this._ioChannels.client) {\n            this.set('sentMsg', msgToSend)\n            numMsgs = this.set('msgsSent', ++this.msgsSent)\n        } else if (channel === this._ioChannels.control) {\n            this.set('sentCtrlMsg', msgToSend)\n            numMsgs = this.set('msgsSentCtrl', ++this.msgsSentCtrl)\n        }\n        log('trace', 'Uib:_send', ` Channel '${channel}'. Sending msg #${numMsgs}`, msgToSend)()\n\n        this._socket.emit(channel, msgToSend)\n    } // --- End of Send Msg Fn --- //\n\n    /** Send a standard message to NR\n     * @example uibuilder.send({payload:'Hello'})\n     * @param {object} msg Message to send\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    send(msg, originator = '') {\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Send a control msg to NR\n     * @param {object} msg Message to send\n     */\n    sendCtrl(msg) {\n        this._send(msg, this._ioChannels.control)\n    }\n\n    /** Easily send a msg back to Node-RED on a DOM event\n     * @example In plain HTML/JavaScript\n     *    `<button id=\"button1\" name=\"button 1\" data-fred=\"jim\"></button>`\n     *    $('#button1').onclick = (evt) => {\n     *      uibuilder.eventSend(evt)\n     *    }\n     * @example\n     * In VueJS: `<b-button id=\"myButton1\" @click=\"doEvent\" data-something=\"hello\"></b-button>`\n     * In VueJS methods: `doEvent: uibuilder.eventSend,`\n     *\n     * All `data-` attributes will be passed back to Node-RED,\n     *    use them instead of arguments in the click function.\n     *    All target._ui custom properties are also passed back to Node-RED.\n     *\n     * @param {MouseEvent|any} domevent DOM Event object\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    eventSend(domevent, originator = '') { // eslint-disable-line sonarjs/cognitive-complexity\n        // @ts-ignore Handle case where vue messes up `this`\n        if ( this.$attrs ) {\n            log('error', 'Uib:eventSend', '`this` has been usurped by VueJS. Make sure that you wrap the call in a function: `doEvent: function (event) { uibuilder.eventSend(event) },`' )()\n            return\n        }\n        if (!domevent && !event) {\n            log('warn', 'Uib:eventSend', 'Neither the domevent nor the hidden event properties are set. You probably called this function directly rather than applying to an on click event.' )()\n            return\n        }\n        // Handle no argument, e.g. <button onClick=\"uibuilder.eventSend()\"> - event is a hidden variable when fn used in addEventListener\n        if (!domevent || !domevent.constructor) domevent = event\n\n        // The argument must be a DOM event\n        if ((!domevent.constructor.name.endsWith('Event')) || (!domevent.currentTarget)) {\n            log('warn', 'Uib:eventSend', `ARGUMENT NOT A DOM EVENT - use data attributes not function arguments to pass data. Arg Type: ${domevent.constructor.name}`, domevent)()\n            return\n        }\n\n        // Prevent default event action\n        domevent.preventDefault()\n\n        // The target element\n        const target = domevent.currentTarget\n\n        // Get target properties - only shows custom props not element default ones\n        const props = {}\n        Object.keys(target).forEach( key => {\n            if (key.startsWith('_')) return // Exclude private\n            props[key] = target[key]\n        })\n\n        // Attempt to get target attributs - can fail for certain target types\n        const ignoreAttribs = ['class', 'id', 'name']\n        let attribs\n        try {\n            attribs = Object.assign({},\n                ...Array.from(target.attributes,\n                    ( { name, value } ) => {\n                        if ( !ignoreAttribs.includes(name) ) {\n                            return ({ [name]: value })\n                        }\n                        return undefined\n                    }\n                )\n            )\n        } catch (e) {}\n\n        // If target embedded in a form, include the form data\n        let form\n        const frmVals = []\n        if ( target.form ) {\n            form = {}\n            form.valid = target.form.checkValidity()\n            Object.values(target.form).forEach( (frmEl, i) => {\n                const id = frmEl.id !== '' ? frmEl.id : (frmEl.name !== '' ? frmEl.name : `${i}-${frmEl.type}`)\n\n                // We must have both an element id (we may have forced one above) AND\n                // the element type MUST be not undefined - to allow for the extra properties added by frameworks such as Svelte\n                if (id !== '' && frmEl.type) {\n                    // Stupid HTML doesn't use value attrib for checkboxes. So override if value is set to default\n                    if ('checked' in frmEl && frmEl.value === 'on') frmEl.value = frmEl.checked.toString()\n\n                    frmVals.push( { key: id, val: frmEl.value } ) // simplified for addition to msg.payload\n\n                    form[id] = {\n                        'id': frmEl.id,\n                        'name': frmEl.name,\n                        'value': frmEl.value,\n                        'valid': frmEl.checkValidity(),\n                        'type': frmEl.type,\n                    }\n\n                    if (form[id].valid === false) {\n                        const v = frmEl.validity\n                        form[id].validity = {\n                            badInput: v.badInput === true ? v.badInput : undefined,\n                            customError: v.customError === true ? v.customError : undefined,\n                            patternMismatch: v.patternMismatch === true ? v.patternMismatch : undefined,\n                            rangeOverflow: v.rangeOverflow === true ? v.rangeOverflow : undefined,\n                            rangeUnderflow: v.rangeUnderflow === true ? v.rangeUnderflow : undefined,\n                            stepMismatch: v.stepMismatch === true ? v.stepMismatch : undefined,\n                            tooLong: v.tooLong === true ? v.tooLong : undefined,\n                            tooShort: v.tooShort === true ? v.tooShort : undefined,\n                            typeMismatch: v.typeMismatch === true ? v.typeMismatch : undefined,\n                            valueMissing: v.valueMissing === true ? v.valueMissing : undefined,\n                        }\n                    }\n\n                    if (frmEl.dataset) form[id].data = frmEl.dataset\n                }\n            })\n        }\n\n        // Check for CSS Classes\n        let classes\n        try {\n            classes = Array.from(target.classList)\n        } catch (e) {}\n\n        // Each `data-xxxx` attribute is added as a property\n        let payload = { ...target.dataset }\n\n        // Handle Notification events\n        let nprops\n        if ( Object.prototype.toString.call(target) === '[object Notification]') {\n            // Fixed payload for convenience\n            payload = `notification-${target.userAction}`\n            // Capture the notification properties\n            nprops = {\n                // userAction: target.userAction, // uib custom prop: click, close or error\n                actions: target.actions,\n                badge: target.badge,\n                body: target.body,\n                data: target.data,\n                dir: target.dir,\n                icon: target.icon,\n                image: target.image,\n                lang: target.lang,\n                renotify: target.renotify,\n                requireInteraction: target.requireInteraction,\n                silent: target.silent,\n                tag: target.tag,\n                timestamp: target.timestamp,\n                title: target.title,\n                vibrate: target.vibrate,\n            }\n        }\n        // console.log(Object.prototype.toString.call(target))\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            // - this may be an empty Object if no data attributes defined\n            payload: payload,\n\n            _ui: {\n                type: 'eventSend',\n                id: target.id !== '' ? target.id : undefined,\n                name: target.name !== '' ? target.name : undefined,\n                slotText: target.textContent ? target.textContent.substring(0, 255) : undefined,\n\n                form: form,\n                props: props,\n                attribs: attribs,\n                classes: classes,\n\n                notification: nprops,\n\n                event: domevent.type,\n                altKey: domevent.altKey,\n                ctrlKey: domevent.ctrlKey,\n                shiftKey: domevent.shiftKey,\n                metaKey: domevent.metaKey,\n\n                pointerType: domevent.pointerType,\n                nodeName: target.nodeName,\n\n                clientId: this.clientId,\n                pageName: this.pageName,\n                tabId: this.tabId,\n            }\n        }\n\n        if (frmVals.length > 0) {\n            frmVals.forEach( entry => {\n                msg.payload[entry.key] = entry.val\n            })\n        }\n\n        if (domevent.type === 'change') {\n            // Checkboxes don't have a value!!\n            msg._ui.newValue = msg.payload.value = 'checked' in target ? target.checked : domevent.target.value\n        }\n\n        log('trace', 'Uib:eventSend', 'Sending msg to Node-RED', msg)()\n        if (target.dataset && target.dataset.length === 0) log('warn', 'Uib:eventSend', 'No payload in msg. data-* attributes should be used.')()\n\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Easily send the entire DOM/HTML msg back to Node-RED\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     * @param {boolean} [send] If true (default) directly send response to Node-RED. Is false when calling from Node-RED as a command.\n     * @returns {string} The HTML as a string\n     */\n    htmlSend(originator = '', send = true) {\n        const out = `<!doctype html>\\n${document.documentElement.outerHTML}`\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            payload: out,\n            length: out.length,\n            topic: this.topic,\n        }\n\n        log('trace', 'Uib:htmlSend', 'Sending full HTML to Node-RED', msg)()\n\n        if (send === true) this._send(msg, this._ioChannels.client, originator)\n        return out\n    }\n\n    /** Process msg._uib.command - Remember to update #extCommands with new allowed commands\n     * @param {object} msg Msg from Node-RED containing a msg._uib object\n     */\n    _uibCommand(msg) {\n        if (!msg._uib || !msg._uib.command) {\n            log('error', 'uibuilder:_uibCommand', 'Invalid command message received', { msg })()\n            msg.payload = msg.error = 'Invalid command message received'\n            this.send(msg)\n            return\n        }\n        const cmd = msg._uib.command\n        // Disallowed command request outputs error and ignores the msg (NB: Case must match)\n        if (!this.#extCommands.includes(cmd.trim())) {\n            log('error', 'Uib:_uibCommand', `Command '${cmd} is not allowed to be called externally`)()\n            return\n        }\n        const prop = msg._uib.prop\n        const value = msg._uib.value\n        const quiet = msg._uib.quiet ?? false\n        let response, info\n\n        // Don't forget to update `#extCommands`, `docs/client-docs/control-from-node-red.md` & `functions.md`\n        switch (cmd) {\n            case 'elementIsVisible': {\n                response = this.elementIsVisible(prop)\n                // info = `Element \"${prop}\" ${response ? 'is visible' : 'is not visible'}`\n                break\n            }\n\n            case 'elementExists': {\n                response = this.elementExists(prop, false)\n                info = `Element \"${prop}\" ${response ? 'exists' : 'does not exist'}`\n                break\n            }\n\n            case 'get': {\n                response = this.get(prop)\n                break\n            }\n\n            case 'getManagedVarList': {\n                if (prop === 'full') response = this.getManagedVarList()\n                else response = Object.values(this.getManagedVarList())\n                break\n            }\n\n            case 'getWatchedVars': {\n                if (prop === 'full') response = this.getWatchedVars()\n                else response = Object.values(this.getWatchedVars())\n                break\n            }\n\n            case 'htmlSend': {\n                response = this.htmlSend('', false)\n                break\n            }\n\n            case 'include': {\n                // include is async\n                response = _ui.include(prop, value)\n                break\n            }\n\n            case 'navigate': {\n                let newUrl\n                if (prop) newUrl = prop\n                else if (value) newUrl = value\n                response = this.navigate(newUrl)\n                break\n            }\n\n            case 'scrollTo': {\n                response = this.scrollTo(prop, value)\n                break\n            }\n\n            case 'set': {\n                let store = false\n                let autoload = false\n                if (msg._uib.options && msg._uib.options.store) {\n                    if (msg._uib.options.store === true) store = true\n                    if (msg._uib.options.autoload === true) autoload = true\n                }\n                response = this.set(prop, value, store, autoload)\n                break\n            }\n\n            case 'showMsg': {\n                response = this.showMsg(value, prop)\n                break\n            }\n\n            case 'showStatus': {\n                response = this.showStatus(value, prop)\n                break\n            }\n\n            case 'uiGet': {\n                response = _ui.uiGet(prop, value)\n                break\n            }\n\n            case 'uiWatch': {\n                response = this.uiWatch(prop)\n                break\n            }\n\n            case 'watchUrlHash': {\n                response = this.watchUrlHash(prop)\n                break\n            }\n\n            default: {\n                log('warning', 'Uib:_uibCommand', `Command '${cmd}' not yet implemented`)()\n                break\n            }\n        }\n\n        if (quiet !== true) {\n            if (response === undefined) {\n                response = `'${prop}' is undefined`\n            }\n            if (Object(response).constructor === Promise) {\n                // response = `'${cmd} ${prop}' submitted. Cmd is async, no response available`\n                response\n                    .then( (/** @type {any} */ data) => {\n                        msg.payload = msg._uib.response = data\n                        msg.info = msg._uib.info = info\n                        if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                        this.send(msg)\n                        return true\n                    })\n                    .catch( err => {\n                        log(0, 'Uib:_uibCommand', 'Error: ', err)()\n                    })\n            } else {\n                msg.payload = msg._uib.response = response\n                msg.info = msg._uib.info = info\n                if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                this.send(msg)\n            }\n        }\n    } // --- end of _uibCommand ---\n\n    /** Do we want to process something? Check pageName, clientId, tabId. Defaults to yes.\n     * @param {*} obj Either a msg._ui or msg._uib object to check\n     * @returns {boolean} True if we should process the inbound _ui/_uib msg, false if not.\n     */\n    _forThis(obj) {\n        let r = true\n\n        // Is this msg for this pageName?\n        if (obj.pageName && obj.pageName !== this.pageName) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this page')()\n            r = false\n        }\n\n        // Is this msg for this clientId?\n        if (obj.clientId && obj.clientId !== this.clientId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this clientId')()\n            r = false\n        }\n\n        // Is this msg for this tabId?\n        if (obj.tabId && obj.tabId !== this.tabId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this tabId')()\n            r = false\n        }\n\n        return r\n    }\n\n    // Handle received messages - Process some msgs internally, emit specific events on document that make it easy for coders to use\n    _msgRcvdEvents(msg) {\n        // Message received\n        this._dispatchCustomEvent('uibuilder:stdMsgReceived', msg)\n\n        // Topic\n        if ( msg.topic ) this._dispatchCustomEvent(`uibuilder:msg:topic:${msg.topic}`, msg)\n\n        // Handle msg._uib special requests\n        if (msg._uib) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._uib)) return\n\n            /** Process a client reload request from Node-RED - as the page is reloaded, everything else is ignored\n             * Note that msg._ui.reload is also actioned via the _ui processing below */\n            if (msg._uib.reload === true) {\n                log('trace', 'Uib:_msgRcvdEvents:_uib:reload', 'reloading')()\n                location.reload()\n                return\n            }\n\n            // Process msg._uib.command messages - allows Node-RED to run uibuilder FE functions\n            if (msg._uib.command) {\n                this._uibCommand(msg)\n                return\n            }\n\n            // Better to request via msg._ui - these are for backwards compatibility\n            if ( msg._uib.componentRef === 'globalNotification' ) {\n                _ui.showDialog('notify', msg._uib.options, msg)\n            }\n            if ( msg._uib.componentRef === 'globalAlert' ) {\n                _ui.showDialog('alert', msg._uib.options, msg)\n            }\n        }\n\n        // Handle msg._ui requests\n        if ( msg._ui ) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._ui)) return\n\n            log('trace', 'Uib:_msgRcvdEvents:_ui', 'Calling _uiManager')()\n            this._dispatchCustomEvent('uibuilder:msg:_ui', msg)\n            _ui._uiManager(msg)\n        }\n    } // --- end of _msgRcvdEvents ---\n\n    /** Callback handler for messages from Node-RED\n     * NOTE: `this` is the class here rather the `socket` as would be normal since we bind the correct `this` in the call.\n     *       Use this._socket if needing reference to the socket.\n     * @callback ioSetupFromServer Called from ioSetup/this._socket.on(this.#ioChannels.server, this.stdMsgFromServer.bind(this))\n     * @param {object} receivedMsg The msg object from Node-RED\n     * @this Uib\n     */\n    _stdMsgFromServer(receivedMsg) {\n\n        // Make sure that msg is an object & not null\n        receivedMsg = makeMeAnObject(receivedMsg, 'payload')\n\n        // Don't process if the inbound msg is not for us\n        if (receivedMsg._uib && !this._forThis(receivedMsg._uib)) return\n        if (receivedMsg._ui && !this._forThis(receivedMsg._ui)) return\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedMsg)\n\n        // Track how many messages have been received\n        this.set('msgsReceived', ++this.msgsReceived)\n\n        // Emit specific document events on msg receipt that make it easy for coders to use\n        this._msgRcvdEvents(receivedMsg)\n\n        if ( !('_ui' in receivedMsg && !('payload' in receivedMsg)) ) {\n            // Save the msg for further processing\n            this.set('msg', receivedMsg)\n        }\n\n        log('info', 'Uib:ioSetup:stdMsgFromServer', `Channel '${this._ioChannels.server}'. Received msg #${this.msgsReceived}.`, receivedMsg)()\n\n        // ! NOTE: Don't try to handle specialist messages here. See _msgRcvdEvents.\n\n    } // -- End of websocket receive DATA msg from Node-RED -- //\n\n    /** Handles original control msgs (not to be confused with \"new\" msg._uib controls)\n     * @param {*} receivedCtrlMsg The msg received on the socket.io control channel\n     */\n    _ctrlMsgFromServer(receivedCtrlMsg) {\n\n        // Make sure that msg is an object & not null\n        if (receivedCtrlMsg === null) {\n            receivedCtrlMsg = {}\n        } else if (typeof receivedCtrlMsg !== 'object') {\n            const msg = {}\n            msg['uibuilderCtrl:' + this._ioChannels.control] = receivedCtrlMsg\n            receivedCtrlMsg = msg\n        }\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedCtrlMsg)\n\n        this.set('ctrlMsg', receivedCtrlMsg)\n        this.set('msgsCtrlReceived', ++this.msgsCtrlReceived)\n\n        log('trace', 'Uib:ioSetup:_ctrlMsgFromServer', `Channel '${this._ioChannels.control}'. Received control msg #${this.msgsCtrlReceived}`, receivedCtrlMsg)()\n\n        /** Process control msg types */\n        switch (receivedCtrlMsg.uibuilderCtrl) {\n            // Node-RED is shutting down\n            case 'shutdown': {\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, '\u274C Received \"shutdown\" from server')()\n                this.set('serverShutdown', undefined)\n                break\n            }\n\n            /** We are connected to the server - 1st msg from server */\n            case 'client connect': {\n                log('trace', `Uib:ioSetup:${this._ioChannels.control}`, 'Received \"client connect\" from server')()\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, `\u2705 Server connected. Version: ${receivedCtrlMsg.version}\\nServer time: ${receivedCtrlMsg.serverTimestamp}, Sever time offset: ${this.serverTimeOffset} hours`)()\n\n                if ( !Uib._meta.version.startsWith(receivedCtrlMsg.version.split('-')[0]) ) {\n                    log('warn', `Uib:ioSetup:${this._ioChannels.control}`, `Server version (${receivedCtrlMsg.version}) not the same as the client version (${Uib._meta.version})`)()\n                }\n\n                if (this.autoSendReady === true) { // eslint-disable-line no-lonely-if\n                    log('trace', `Uib:ioSetup:${this._ioChannels.control}/client connect`, 'Auto-sending ready-for-content/replay msg to server')\n                    // @since 0.4.8c Add cacheControl property for use with node-red-contrib-infocache\n                    // @since 6.1.0 Don't bother, we use the \"client connect\" msg\n                    // this._send({\n                    //     'uibuilderCtrl': 'ready for content',\n                    //     'cacheControl': 'REPLAY',\n                    // }, this._ioChannels.control)\n                }\n\n                break\n            }\n\n            default: {\n                log('trace', `uibuilderfe:ioSetup:${this._ioChannels.control}`, `Received ${receivedCtrlMsg.uibuilderCtrl} from server`)\n                // Anything else to do for other control msgs?\n            }\n\n        } // ---- End of process control msg types ---- //\n\n    } // -- End of websocket receive CONTROL msg from Node-RED -- //\n\n    /** Send log text to uibuilder's beacon endpoint (works even if socket.io not connected)\n     * @param {string} txtToSend Text string to send\n     * @param {string|undefined} logLevel Log level to use. If not supplied, will default to debug\n     */\n    beaconLog(txtToSend, logLevel) {\n        if (!logLevel) logLevel = 'debug'\n        navigator.sendBeacon('./_clientLog', `${logLevel}::${txtToSend}`)\n    }\n\n    /** Send log info back to Node-RED over uibuilder's websocket control output (Port #2)\n     * @param {...*} arguments All arguments passed to the function are added to the msg.payload\n     */\n    logToServer() {\n        this.sendCtrl({\n            uibuilderCtrl: 'client log message',\n            payload: arguments,\n            // \"version\":\"6.1.0-iife.min\",\n            _socketId: this._socket.id,\n            // \"ip\":\"::1\",\n            clientId: this.clientId,\n            tabId: this.tabId,\n            // \"url\":\"esp-test\",\n            pageName: this.pageName,\n            connections: this.connectedNum,\n            lastNavType: this.lastNavType,\n        })\n    }\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Socket.IO -------- //\n\n    /** Return the Socket.IO namespace\n     * The cookie method is the most reliable but this falls back to trying to work it\n     * out from the URL if cookies not available. That won't work if page is in a sub-folder.\n     * since 2017-10-21 Improve method to cope with more complex paths - thanks to Steve Rickus @shrickus\n     * since 2017-11-10 v1.0.1 Check cookie first then url. cookie works even if the path is more complex (e.g. sub-folder)\n     * since 2020-01-25 Removed httpRoot from namespace to prevent proxy induced errors\n     * @returns {string} Socket.IO namespace\n     */\n    _getIOnamespace() {\n\n        let ioNamespace\n\n        /** Try getting the namespace cookie. */\n        ioNamespace = this.cookies['uibuilder-namespace']\n\n        // if it wasn't available, try using the current url path\n        if (ioNamespace === undefined || ioNamespace === '') {\n            // split url path & eliminate any blank elements, and trailing or double slashes\n            const u = window.location.pathname.split('/')\n                .filter(function (t) { return t.trim() !== '' })\n\n            /** since v2.0.5 Extra check for 0 length, Issue #73. since 2017-11-06 If the last element of the path is an .html file name, remove it */\n            if (u.length > 0 && (u[u.length - 1].endsWith('.html'))) u.pop()\n\n            // Get the last part of the url path, this MUST match the namespace in uibuilder\n            ioNamespace = u.pop()\n\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via url path: ${ioNamespace}`)()\n        } else {\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via cookie: ${ioNamespace}`)()\n        }\n\n        this.url = ioNamespace\n        // Namespace HAS to start with a /\n        ioNamespace = '/' + ioNamespace\n\n        log('trace', 'uibuilder.module.js:getIOnamespace', `Final Socket.IO namespace: ${ioNamespace}`)()\n\n        return ioNamespace\n    } // --- End of set IO namespace --- //\n\n    /** Function used to check whether Socket.IO is connected to the server, reconnect if not (recursive)\n     * @param {number} [delay] Initial delay before checking (ms). Default=2000ms\n     * @param {number} [factor] Multiplication factor for subsequent checks (delay*factor). Default=1.5\n     * @param {number} [depth] Recursion depth\n     * @returns {boolean|undefined} Whether or not Socket.IO is connected to uibuilder in Node-RED\n     */\n    _checkConnect(delay, factor, depth = 1) {\n        if ( navigator.onLine === false ) return // Don't bother if we know we are offline\n\n        if (!delay) delay = this.retryMs\n        if (!factor) factor = this.retryFactor\n\n        log('trace', 'Uib:checkConnect', `Checking connection. Connected: ${this._socket.connected}. Timer: ${this.#timerid}. Depth: ${depth}. Delay: ${delay}. Factor: ${factor}`, this._socket)()\n\n        // If we are connected ...\n        if (this._socket.connected === true) {\n            // Clear the setTimeout\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this.set('ioConnected', true)\n            this.set('socketError', null)\n            return true\n        }\n\n        // ... we aren't connected so:\n        this.set('ioConnected', false)\n\n        // we only want one running at a time\n        if (this.#timerid) window.clearTimeout(this.#timerid)\n\n        // Create the new timer\n        this.#timerid = window.setTimeout(() => {\n            log('warn', 'Uib:checkConnect:setTimeout', `Socket.IO reconnection attempt. Current delay: ${delay}. Depth: ${depth}`)()\n\n            // this is necessary sometimes when the socket fails to connect on startup\n            this._socket.close()\n\n            // Try to reconnect\n            this._socket.connect()\n\n            // don't need to check whether we have connected as the timer will have been cleared if we have\n            this.#timerid = null\n\n            // @ts-ignore Create new timer for next time round with extended delay\n            this._checkConnect(delay * factor, factor, depth++)\n        }, delay)\n\n        return false\n    } // --- End of checkConnect Fn--- //\n\n    // See message handling section for msg receipt handlers\n\n    /** Called by _ioSetup when Socket.IO connects to Node-RED */\n    _onConnect() {\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n        log('info', 'Uib:ioSetup', `\u2705 SOCKET CONNECTED. Connection count: ${this.connectedNum}, Is a Recovery?: ${this._socket.recovered}. \\nNamespace: ${this.ioNamespace}`)()\n        this._dispatchCustomEvent('uibuilder:socket:connected', { 'numConnections': this.connectedNum, 'isRecovery': this._socket.recovered })\n\n        this._checkConnect() // resets any reconnection timers & sets connected flag\n    }\n\n    /** Called by _ioSetup when Socket.IO disconnects from Node-RED\n     * @param {string} reason Disconnection title\n     */\n    _onDisconnect(reason) {\n        // reason === 'io server disconnect' - redeploy of Node instance\n        // reason === 'transport close' - Node-RED terminating\n        // reason === 'ping timeout' - didn't receive a pong response?\n        log('info', 'Uib:ioSetup:socket-disconnect', `\u26D4 Socket Disconnected. Reason: ${reason}`)()\n\n        this._dispatchCustomEvent('uibuilder:socket:disconnected', reason)\n\n        /** A workaround for SIO's failure to reconnect after a disconnection */\n        this._checkConnect()\n    }\n\n    /** Setup Socket.io\n     * since v2.0.0-beta2 Moved to a function and called by the user (uibuilder.start()) so that namespace & path can be passed manually if needed\n     * @returns {boolean} Attaches socket.io manager to self._socket and updates self.ioNamespace & self.ioPath as needed\n     */\n    _ioSetup() {\n\n        // Just a notification, actual load is done outside the class (see start of file)\n        if (io === undefined) {\n            log('error', 'Uib:ioSetup', 'Socket.IO client not loaded, Node-RED comms will not work')()\n            return false\n        }\n\n        // If socket is already set up, close it and remove all of the listeners\n        if (this._socket) {\n            log('trace', 'Uib:ioSetup', 'Removing listeners in preparation for redoing Socket.IO connections')()\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this._socket.close()\n            this._socket.offAny()\n            this._socket = undefined\n            this.set('ioConnected', false)\n        }\n\n        // Update the URL path to make sure we have the right one\n        this.socketOptions.path = this.ioPath\n\n        // NOTE: this._socket.auth is now set by callback and so automatically updated for each client (re)connection. No need to set here\n\n        // Create the socket - make sure client uses Socket.IO version from the uibuilder module (using path)\n        log('trace', 'Uib:ioSetup', `About to create IO object. Transports: [${this.socketOptions.transports.join(', ')}]`)()\n        this._socket = io(this.ioNamespace, this.socketOptions)\n\n        /** When the socket is connected - set ioConnected flag and reset connect timer  */\n        this._socket.on('connect', this._onConnect.bind(this))\n\n        // RECEIVE a STANDARD, non-control msg from Node-RED server\n        this._socket.on(this._ioChannels.server, this._stdMsgFromServer.bind(this))\n\n        // RECEIVE a CONTROL msg from Node-RED server - see also sendCtrl()\n        this._socket.on(this._ioChannels.control, this._ctrlMsgFromServer.bind(this))\n\n        // When the socket is disconnected ..............\n        this._socket.on('disconnect', this._onDisconnect.bind(this))\n\n        // Socket.io connection error - probably the wrong ioPath - or client is offline\n        this._socket.on('connect_error', (err) => {\n            if ( navigator.onLine === false ) return // Don't bother with an error if we know we are offline\n            log('error', 'Uib:ioSetup:connect_error', `\u274C Socket.IO Connect Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket connect error processing ---\n\n        // Socket.io error - from the server (socket.use middleware triggered an error response)\n        this._socket.on('error', (err) => {\n            log('error', 'Uib:ioSetup:error', `\u274C Socket.IO Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket error processing ---\n\n        // Ensure we are connected, retry if not\n        this._checkConnect()\n\n        return true\n\n        /* We really don't need these, just for interest\n            self._socket.io.on('packet', function onPacket(data){\n                // we get one of these for each REAL msg (not ping/pong)\n                console.debug('PACKET', data)\n            })\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n                //console.dir(self._socket)\n            }) // --- End of socket pong processing ---\n            self._socket.io.on('packet', function(data){\n                // We get one of these for actual messages, not ping/pong\n                console.debug('PACKET', data)\n            })\n            self._socket.on('connect_timeout', function(timeout) {\n                console.debug('SOCKET CONNECT TIMEOUT - Namespace: ' + ioNamespace + ', Timeout: ' + timeout)\n            }) // --- End of socket connect timeout processing ---\n            self._socket.on('reconnect', function(attemptNum) {\n                console.debug('SOCKET RECONNECTED - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect processing ---\n            self._socket.on('reconnect_attempt', function(attemptNum) {\n                console.debug('SOCKET RECONNECT ATTEMPT - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect_attempt processing ---\n            self._socket.on('reconnecting', function(attemptNum) {\n                console.debug('SOCKET RECONNECTING - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnecting processing ---\n            self._socket.on('reconnect_error', function(err) {\n                console.debug('SOCKET RECONNECT ERROR - Namespace: ' + ioNamespace + ', Reason: ' + err.message)\n                //console.dir(err)\n            }) // --- End of socket reconnect_error processing ---\n            self._socket.on('reconnect_failed', function() {\n                console.debug('SOCKET RECONNECT FAILED - Namespace: ' + ioNamespace)\n            }) // --- End of socket reconnect_failed processing ---\n            self._socket.on('ping', function() {\n                console.debug('SOCKET PING')\n            }) // --- End of socket ping processing ---\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n            }) // --- End of socket pong processing ---\n            */\n    } // ---- End of ioSetup ---- //\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Class construction & startup method -------- //\n\n    constructor() {\n        log('trace', 'Uib:constructor', 'Starting')()\n\n        // Track whether the client is online or offline\n        window.addEventListener('offline', (e) => {\n            this.set('online', false)\n            this.set('ioConnected', false)\n            log('warn', 'Browser', 'DISCONNECTED from network')()\n        })\n        window.addEventListener('online', (e) => {\n            this.set('online', true)\n            log('warn', 'Browser', 'Reconnected to network')()\n            this._checkConnect()\n        })\n\n        document.cookie.split(';').forEach((c) => {\n            const splitC = c.split('=')\n            this.cookies[splitC[0].trim()] = splitC[1]\n        })\n\n        /** Client ID set by uibuilder - lasts until browser profile is closed, applies to all tabs */\n        this.set('clientId', this.cookies['uibuilder-client-id'])\n        log('trace', 'Uib:constructor', 'Client ID: ', this.clientId)()\n\n        /** Tab ID - lasts while the tab is open (even if reloaded)\n         * WARNING: Duplicating a tab retains the same tabId\n         */\n        this.set('tabId', window.sessionStorage.getItem('tabId'))\n        if (!this.tabId) {\n            this.set('tabId', `t${Math.floor(Math.random() * 1000000)}`)\n            window.sessionStorage.setItem('tabId', this.tabId)\n        }\n\n        // document.addEventListener('pagehide', (event) => {\n        //     // console.log(`pagehide. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pagehide. From Cache?: ${event.persisted}`)\n        // })\n        // document.addEventListener('pageshow', (event) => {\n        //     // console.log(`pageshow. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pageshow. From Cache?: ${event.persisted}`)\n        // })\n        document.addEventListener('load', () => {\n            this.set('isVisible', true)\n        })\n        document.addEventListener('visibilitychange', () => {\n            // hidden=unload, minimise. visible=un-minimise (not fired on load)\n            this.set('isVisible', document.visibilityState === 'visible')\n            this.sendCtrl({ uibuilderCtrl: 'visibility', isVisible: this.isVisible })\n            // navigator.userActivation is experimental Chromium only\n            // console.log('visibilitychange', ':', `Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n            // navigator.sendBeacon('./_clientLog', `${(new Date()).toISOString()} Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n        })\n\n        // Set a listener to update showStatus table if it is active\n        document.addEventListener('uibuilder:propertyChanged', (event) => {\n            if (!this.#isShowStatus) return\n\n            // @ts-ignore\n            if (event.detail.prop in this.#showStatus) {\n                // @ts-ignore\n                document.querySelector(`td[data-vartype=\"${event.detail.prop}\"]`).innerText = JSON.stringify(event.detail.value)\n            }\n        })\n\n        this.set('ioNamespace', this._getIOnamespace())\n\n        //#region - Try to make sure client uses Socket.IO client version from the uibuilder module (using cookie or path) @since v2.0.0 2019-02-24 allows for httpNodeRoot\n\n        /** httpNodeRoot (to set path) */\n        if ('uibuilder-webRoot' in this.cookies) {\n            this.set('httpNodeRoot', this.cookies['uibuilder-webRoot'])\n            log('trace', 'Uib:constructor', `httpNodeRoot set by cookie to \"${this.httpNodeRoot}\"`)()\n        } else {\n            // split current url path, eliminate any blank elements and trailing or double slashes\n            const fullPath = window.location.pathname.split('/').filter(function (t) { return t.trim() !== '' })\n            /** handle url includes file name - @since v2.0.5 Extra check for 0 length, Issue #73. */\n            if (fullPath.length > 0 && fullPath[fullPath.length - 1].endsWith('.html')) fullPath.pop()\n            fullPath.pop() // gives the last path section of the url\n            this.set('httpNodeRoot', `/${fullPath.join('/')}`)\n            log('trace', '[Uib:constructor]', `httpNodeRoot set by URL parsing to \"${this.httpNodeRoot}\". NOTE: This may fail for pages in sub-folders.`)()\n        }\n        this.set('ioPath', urlJoin(this.httpNodeRoot, Uib._meta.displayName, 'vendor', 'socket.io'))\n        log('trace', 'Uib:constructor', `ioPath: \"${this.ioPath}\"`)()\n\n        //#endregion\n\n        // Work out pageName\n        this.set('pageName', window.location.pathname.replace(`${this.ioNamespace}/`, ''))\n        if ( this.pageName.endsWith('/') ) this.set('pageName', `${this.pageName}index.html`)\n        if ( this.pageName === '' ) this.set('pageName', 'index.html')\n\n        // Attempt to restore autoload variables\n        try {\n            const autoloadVars = this.getStore('_uibAutoloadVars')\n            if (Object.keys(autoloadVars).length > 0) {\n                Object.keys(autoloadVars).forEach( (id) => {\n                    this.set(id, this.getStore(id))\n                })\n            }\n        } catch (e) {}\n\n        this._dispatchCustomEvent('uibuilder:constructorComplete')\n\n        log('trace', 'Uib:constructor', 'Ending')()\n    }\n\n    /** Start up Socket.IO comms and listeners\n     * This has to be done separately because if running from a web page in a sub-folder of src/dist, uibuilder cannot\n     * necessarily work out the correct ioPath to use.\n     * Also, if cookies aren't permitted in the browser, both ioPath and ioNamespace may need to be specified.\n     * @param {object} [options] The start options object.\n     * @returns {void}\n     */\n    start(options) {\n        log('trace', 'Uib:start', 'Starting')()\n\n        // Cancel the msg event handler if already present\n        if ( this.#MsgHandler ) this.cancelChange('msg', this.#MsgHandler)\n\n        if (this.started === true) {\n            log('info', 'Uib:start', 'Start function already called. Resetting Socket.IO and msg handler.')()\n        }\n\n        log('log', 'Uib:start', 'Cookies: ', this.cookies, `\\nClient ID: ${this.clientId}`)()\n        log('trace', 'Uib:start', 'ioNamespace: ', this.ioNamespace, `\\nioPath: ${this.ioPath}`)()\n\n        // Handle options\n        if (options) {\n            if (options.ioNamespace !== undefined && options.ioNamespace !== null && options.ioNamespace !== '') this.set('ioNamespace', options.ioNamespace)\n            if (options.ioPath !== undefined && options.ioPath !== null && options.ioPath !== '') this.set('ioPath', options.ioPath)\n            // See below for handling of options.loadStylesheet\n        }\n\n        // Do we need to load styles?\n        if ( document.styleSheets.length >= 1 || (document.styleSheets.length === 1 && document.styleSheets[0].cssRules.length === 0) ) {\n            log('info', 'Uib:start', 'Styles already loaded so not loading uibuilder default styles.')()\n        } else {\n            if (options && options.loadStylesheet === false) log('info', 'Uib:start', 'No styles loaded & options.loadStylesheet === false.')()\n            else {\n                log('info', 'Uib:start', 'No styles loaded, loading uibuilder default styles.')()\n                this.loadStyleSrc(`${this.httpNodeRoot}/uibuilder/uib-brand.min.css`)\n            }\n        }\n\n        /** Handle specialist messages like reload and _ui -> Moved to _msgRcvdEvents */\n\n        // Track last browser navigation type: navigate, reload, back_forward, prerender\n        const [entry] = performance.getEntriesByType('navigation')\n        // @ts-ignore\n        this.set('lastNavType', entry.type)\n\n        // Start up (or restart) Socket.IO connections and listeners. Returns false if io not found\n        this.set('started', this._ioSetup())\n\n        if ( this.started === true ) {\n            log('trace', 'Uib:start', 'Start completed. Socket.IO client library loaded.')()\n        } else {\n            log('error', 'Uib:start', 'Start completed. ERROR: Socket.IO client library NOT LOADED.')()\n        }\n\n        // Watch for URL hash changes in case using a front-end router. Updates watched var `urlHash` and socket.io `auth.urlHash`\n        this._watchHashChanges()\n\n        // Check if Vue is present (used for dynamic UI processing)\n        if (window['Vue']) {\n            this.set('isVue', true)\n            try {\n                this.set('vueVersion', window['Vue'].version)\n            } catch (e) { }\n            log('trace', 'Uib:start', `VueJS is loaded. Version: ${this.vueVersion}`)()\n        } else {\n            log('trace', 'Uib:start', 'VueJS is not loaded.')()\n        }\n\n        // Check if DOMPurify library is loaded\n        if (window['DOMPurify']) {\n            this.set('purify', true)\n            log('trace', 'Uib:start', 'DOMPurify is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'DOMPurify is not loaded.')()\n        }\n        // Check if Markdown-IT library is loaded\n        if (window['markdownit']) {\n            this.set('markdown', true)\n            log('trace', 'Uib:start', 'Markdown-IT is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'Markdown-IT is not loaded.')()\n        }\n\n        // if (window['DOMPurify']) {\n        //     this.set('purify', true)\n        //     log('trace', 'Uib:start', 'DOMPurify is loaded.')\n        // } else {\n        //     log('trace', 'Uib:start', 'DOMPurify is not loaded.')\n        // }\n\n        // Set up msg listener for the optional showMsg\n        this.onChange('msg', (msg) => {\n            if (this.#isShowMsg === true) {\n                const eMsg = document.getElementById('uib_last_msg')\n                if (eMsg) eMsg.innerHTML = this.syntaxHighlight(msg)\n            }\n        })\n\n        this._dispatchCustomEvent('uibuilder:startComplete')\n    }\n\n    //#endregion -------- ------------ -------- //\n} // ==== End of Class Uib ====\n\n//#region --- Wrap up - get things started ---\n\n// Create an instance (we will only ever want one)\nconst uibuilder = new Uib()\n\n// Assign reference to the instance to the global `window` object\n// Only useful if loading via <script> tag - prefer loading via `import uibuilder from ...`\nif (!window['uibuilder']) {\n    window['uibuilder'] = uibuilder\n} else {\n    log('error', 'uibuilder.module.js', '`uibuilder` already assigned to window. Have you tried to load it more than once?')\n}\nif (!window['uib']) {\n    window['uib'] = uibuilder\n} else {\n    log('warn', 'uibuilder.module.js', '`uib` shortcut already assigned to window.')\n}\n\n// Assign `$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$`.\nif (!window['$']) {\n    /** @type {HTMLElement} */\n    window['$'] = window['uibuilder'].$ // document.querySelector.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` instead.')\n}\n// Assign `$$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$$']) {\n    /** @type {HTMLElement} */\n    window['$$'] = window['uibuilder'].$$ // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` instead.')\n}\n\n// Can import as `import uibuilder from ...` OR `import {uibuilder} from ...`\nexport { uibuilder }\nexport default uibuilder\n\n// Attempt to run start fn\nuibuilder.start()\n\n// Add the class as a new Custom Element to the window object\ncustomElements.define('uib-var', UibVar)\n\n//#endregion --- Wrap up ---\n\n// EOF\n", "/** A zero dependency web component that will display a managed uibuilder variable.\n *\n * Version: 0.0.1 2023-10-07\n *\n * ToDo:\n * -\n */\n/*\n  Copyright (c) 2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n// const template = document.createElement('template')\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<link type=\"text/css\" rel=\"stylesheet\" href=\"\"../uibuilder/uib-brand.min.css\"\" media=\"all\"><span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`\n// {/* <style>@import url(\"../uibuilder/uib-brand.min.css\");</style><span></span> */}\n// `\n\nexport default class UibVar extends HTMLElement {\n    //#region --- Class Properties ---\n    /** @type {string} Name of the uibuilder mangaged variable to use */\n    variable\n    /** Current value of the watched variable */\n    value\n    /** Whether to output if the variable is undefined */\n    undefined = false\n    /** Whether to send update value to Node-RED on change */\n    report = false\n    /** What is the value type */\n    type = 'plain'\n    /** what are the available types? */\n    types = ['plain', 'html', 'markdown', 'object']\n\n    /** Mini jQuery-like shadow dom selector (see constructor) */\n    $\n    \n    /** Holds a count of how many instances of this component are on the page */\n    static _iCount = 0\n    /** @type {Array<string>} List of all of the html attribs (props) listened to */\n    static props = ['name', 'id', 'variable', 'undefined', 'report', 'type']\n    //#endregion --- Class Properties ---\n\n    constructor() {\n        super()\n        this.shadow = this.attachShadow({ mode: 'open', delegatesFocus: true })\n            // .append(template.content.cloneNode(true))\n\n        this.$ = this.shadowRoot.querySelector.bind(this.shadowRoot)\n\n        // Apply external styles to the shadow dom\n        this.css = document.createElement(\"link\")\n        this.css.setAttribute(\"type\", \"text/css\")\n        this.css.setAttribute(\"rel\", \"stylesheet\")\n        this.css.setAttribute(\"href\", \"../uibuilder/uib-brand.min.css\")\n\n        this.dispatchEvent(new Event(`uib-var:construction`, { bubbles: true, composed: true }))\n    }\n\n    // Makes HTML attribute change watched\n    static get observedAttributes() {\n        return UibVar.props\n    }\n\n    /** NOTE: On initial startup, this is called for each watched attrib set in HTML - BEFORE connectedCallback is called  */\n    attributeChangedCallback(attrib, oldVal, newVal) {\n        if ( oldVal === newVal ) return\n\n        switch (attrib) {\n            case 'variable': {\n                if (newVal === '') throw new Error('[uib-var] Attribute \"variable\" MUST be set to a UIBUILDER managed variable name')\n                this.variable = newVal\n                this.doWatch()\n                break\n            }\n            case 'undefined': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.undefined = true\n                else this.undefined = false\n                break\n            }\n            case 'report': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.report = true\n                else this.report = false\n                break\n            }\n            case 'type': {\n                if (newVal === '' || !this.types.includes(newVal.toLowerCase())) this.type = 'plain'\n                else this.type = newVal\n                break\n            }\n\n            default: {\n                this[attrib] = newVal\n                break\n            }\n        }\n    } // --- end of attributeChangedCallback --- //\n\n    // Runs when an instance is added to the DOM\n    connectedCallback() {\n        // Make sure instance has an ID. Create an id from name or calculation if needed\n        if (!this.id) {\n            if (!this.name) this.name = this.getAttribute('name')\n            if (this.name) this.id = this.name.toLowerCase().replace(/\\s/g, '_')\n            else this.id = `uib-var-${++UibVar._iCount}`\n        }\n    }  // ---- end of connectedCallback ---- //\n\n    // Runs when an instance is removed from the DOM\n    // disconnectedCallback() {} // ---- end of disconnectedCallback ---- //\n\n    /** Process changes to the required uibuilder variable */\n    doWatch() {\n        if (!this.variable) throw new Error('No variable name provided')\n        // if (!window['uibuilder']) throw new Error('UIBUILDER client library not loaded - this component must be loaded AFTER the UIBUILDER library')\n\n        this.value = window['uibuilder'].get(this.variable)\n        this.varDom()\n\n        // Watch for changes in the variable\n        window['uibuilder'].onChange(this.variable, (val) => {\n            this.value = val\n            this.varDom()\n            if (this.report === true) window['uibuilder'].send({topic: this.variable, payload: this.value || undefined})\n        })\n    }\n\n    /** Convert this.value to DOM output */\n    varDom() {\n        // If user doesn't want to show undefined vars, allow the component slot to show instead\n        if (this.value === undefined && this.undefined !== true) { \n            this.shadow.innerHTML = '<slot></slot>'\n            return\n        }\n        \n        let val = this.value\n\n        // console.log('\uD83E\uDDEA varDOM: ', val, typeof val, this.type)\n\n        switch (this.type) {\n            case 'markdown': {\n                this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(window['uibuilder'].convertMarkdown(val))\n                break\n            }\n        \n            case 'object': {\n                // console.log(window['uibuilder'].syntaxHighlight(val))\n                this.shadow.innerHTML = `<pre class=\"syntax-highlight\">${window['uibuilder'].syntaxHighlight(val)}</pre>`\n                break\n            }\n        \n            case 'plain':\n            case 'html':\n            default: {\n                const t = typeof val\n                if (Array.isArray(val) || t === '[object Object]' || t === 'object') {\n                    try {\n                        this.shadow.innerHTML = JSON.stringify(val)\n                    } catch (e) {\n                        this.shadow.innerHTML = val\n                    }\n                } else {\n                    this.shadow.innerHTML = val\n                }\n                break\n            }\n        }\n\n        this.shadow.appendChild(this.css)\n        // this.$('span').innerHTML = window['uibuilder'].sanitiseHTML(val)\n        // this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(val)\n    }\n}\n\n// Add the class as a new Custom Element to the window object \n// customElements.define('uib-var', UibVar)\n", "const PACKET_TYPES = Object.create(null); // no Map = no polyfill\nPACKET_TYPES[\"open\"] = \"0\";\nPACKET_TYPES[\"close\"] = \"1\";\nPACKET_TYPES[\"ping\"] = \"2\";\nPACKET_TYPES[\"pong\"] = \"3\";\nPACKET_TYPES[\"message\"] = \"4\";\nPACKET_TYPES[\"upgrade\"] = \"5\";\nPACKET_TYPES[\"noop\"] = \"6\";\nconst PACKET_TYPES_REVERSE = Object.create(null);\nObject.keys(PACKET_TYPES).forEach(key => {\n    PACKET_TYPES_REVERSE[PACKET_TYPES[key]] = key;\n});\nconst ERROR_PACKET = { type: \"error\", data: \"parser error\" };\nexport { PACKET_TYPES, PACKET_TYPES_REVERSE, ERROR_PACKET };\n", "import { PACKET_TYPES } from \"./commons.js\";\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        Object.prototype.toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\n// ArrayBuffer.isView method is not defined in IE10\nconst isView = obj => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj && obj.buffer instanceof ArrayBuffer;\n};\nconst encodePacket = ({ type, data }, supportsBinary, callback) => {\n    if (withNativeBlob && data instanceof Blob) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(data, callback);\n        }\n    }\n    else if (withNativeArrayBuffer &&\n        (data instanceof ArrayBuffer || isView(data))) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(new Blob([data]), callback);\n        }\n    }\n    // plain string\n    return callback(PACKET_TYPES[type] + (data || \"\"));\n};\nconst encodeBlobAsBase64 = (data, callback) => {\n    const fileReader = new FileReader();\n    fileReader.onload = function () {\n        const content = fileReader.result.split(\",\")[1];\n        callback(\"b\" + (content || \"\"));\n    };\n    return fileReader.readAsDataURL(data);\n};\nfunction toArray(data) {\n    if (data instanceof Uint8Array) {\n        return data;\n    }\n    else if (data instanceof ArrayBuffer) {\n        return new Uint8Array(data);\n    }\n    else {\n        return new Uint8Array(data.buffer, data.byteOffset, data.byteLength);\n    }\n}\nlet TEXT_ENCODER;\nexport function encodePacketToBinary(packet, callback) {\n    if (withNativeBlob && packet.data instanceof Blob) {\n        return packet.data\n            .arrayBuffer()\n            .then(toArray)\n            .then(callback);\n    }\n    else if (withNativeArrayBuffer &&\n        (packet.data instanceof ArrayBuffer || isView(packet.data))) {\n        return callback(toArray(packet.data));\n    }\n    encodePacket(packet, false, encoded => {\n        if (!TEXT_ENCODER) {\n            TEXT_ENCODER = new TextEncoder();\n        }\n        callback(TEXT_ENCODER.encode(encoded));\n    });\n}\nexport { encodePacket };\n", "// imported from https://github.com/socketio/base64-arraybuffer\nconst chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';\n// Use a lookup table to find the index.\nconst lookup = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);\nfor (let i = 0; i < chars.length; i++) {\n    lookup[chars.charCodeAt(i)] = i;\n}\nexport const encode = (arraybuffer) => {\n    let bytes = new Uint8Array(arraybuffer), i, len = bytes.length, base64 = '';\n    for (i = 0; i < len; i += 3) {\n        base64 += chars[bytes[i] >> 2];\n        base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];\n        base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];\n        base64 += chars[bytes[i + 2] & 63];\n    }\n    if (len % 3 === 2) {\n        base64 = base64.substring(0, base64.length - 1) + '=';\n    }\n    else if (len % 3 === 1) {\n        base64 = base64.substring(0, base64.length - 2) + '==';\n    }\n    return base64;\n};\nexport const decode = (base64) => {\n    let bufferLength = base64.length * 0.75, len = base64.length, i, p = 0, encoded1, encoded2, encoded3, encoded4;\n    if (base64[base64.length - 1] === '=') {\n        bufferLength--;\n        if (base64[base64.length - 2] === '=') {\n            bufferLength--;\n        }\n    }\n    const arraybuffer = new ArrayBuffer(bufferLength), bytes = new Uint8Array(arraybuffer);\n    for (i = 0; i < len; i += 4) {\n        encoded1 = lookup[base64.charCodeAt(i)];\n        encoded2 = lookup[base64.charCodeAt(i + 1)];\n        encoded3 = lookup[base64.charCodeAt(i + 2)];\n        encoded4 = lookup[base64.charCodeAt(i + 3)];\n        bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n        bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n        bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n    }\n    return arraybuffer;\n};\n", "import { ERROR_PACKET, PACKET_TYPES_REVERSE } from \"./commons.js\";\nimport { decode } from \"./contrib/base64-arraybuffer.js\";\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nexport const decodePacket = (encodedPacket, binaryType) => {\n    if (typeof encodedPacket !== \"string\") {\n        return {\n            type: \"message\",\n            data: mapBinary(encodedPacket, binaryType)\n        };\n    }\n    const type = encodedPacket.charAt(0);\n    if (type === \"b\") {\n        return {\n            type: \"message\",\n            data: decodeBase64Packet(encodedPacket.substring(1), binaryType)\n        };\n    }\n    const packetType = PACKET_TYPES_REVERSE[type];\n    if (!packetType) {\n        return ERROR_PACKET;\n    }\n    return encodedPacket.length > 1\n        ? {\n            type: PACKET_TYPES_REVERSE[type],\n            data: encodedPacket.substring(1)\n        }\n        : {\n            type: PACKET_TYPES_REVERSE[type]\n        };\n};\nconst decodeBase64Packet = (data, binaryType) => {\n    if (withNativeArrayBuffer) {\n        const decoded = decode(data);\n        return mapBinary(decoded, binaryType);\n    }\n    else {\n        return { base64: true, data }; // fallback for old browsers\n    }\n};\nconst mapBinary = (data, binaryType) => {\n    switch (binaryType) {\n        case \"blob\":\n            if (data instanceof Blob) {\n                // from WebSocket + binaryType \"blob\"\n                return data;\n            }\n            else {\n                // from HTTP long-polling or WebTransport\n                return new Blob([data]);\n            }\n        case \"arraybuffer\":\n        default:\n            if (data instanceof ArrayBuffer) {\n                // from HTTP long-polling (base64) or WebSocket + binaryType \"arraybuffer\"\n                return data;\n            }\n            else {\n                // from WebTransport (Uint8Array)\n                return data.buffer;\n            }\n    }\n};\n", "import { encodePacket, encodePacketToBinary } from \"./encodePacket.js\";\nimport { decodePacket } from \"./decodePacket.js\";\nimport { ERROR_PACKET } from \"./commons.js\";\nconst SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text\nconst encodePayload = (packets, callback) => {\n    // some packets may be added to the array while encoding, so the initial length must be saved\n    const length = packets.length;\n    const encodedPackets = new Array(length);\n    let count = 0;\n    packets.forEach((packet, i) => {\n        // force base64 encoding for binary packets\n        encodePacket(packet, false, encodedPacket => {\n            encodedPackets[i] = encodedPacket;\n            if (++count === length) {\n                callback(encodedPackets.join(SEPARATOR));\n            }\n        });\n    });\n};\nconst decodePayload = (encodedPayload, binaryType) => {\n    const encodedPackets = encodedPayload.split(SEPARATOR);\n    const packets = [];\n    for (let i = 0; i < encodedPackets.length; i++) {\n        const decodedPacket = decodePacket(encodedPackets[i], binaryType);\n        packets.push(decodedPacket);\n        if (decodedPacket.type === \"error\") {\n            break;\n        }\n    }\n    return packets;\n};\nexport function createPacketEncoderStream() {\n    return new TransformStream({\n        transform(packet, controller) {\n            encodePacketToBinary(packet, encodedPacket => {\n                const payloadLength = encodedPacket.length;\n                let header;\n                // inspired by the WebSocket format: https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API/Writing_WebSocket_servers#decoding_payload_length\n                if (payloadLength < 126) {\n                    header = new Uint8Array(1);\n                    new DataView(header.buffer).setUint8(0, payloadLength);\n                }\n                else if (payloadLength < 65536) {\n                    header = new Uint8Array(3);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 126);\n                    view.setUint16(1, payloadLength);\n                }\n                else {\n                    header = new Uint8Array(9);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 127);\n                    view.setBigUint64(1, BigInt(payloadLength));\n                }\n                // first bit indicates whether the payload is plain text (0) or binary (1)\n                if (packet.data && typeof packet.data !== \"string\") {\n                    header[0] |= 0x80;\n                }\n                controller.enqueue(header);\n                controller.enqueue(encodedPacket);\n            });\n        }\n    });\n}\nlet TEXT_DECODER;\nfunction totalLength(chunks) {\n    return chunks.reduce((acc, chunk) => acc + chunk.length, 0);\n}\nfunction concatChunks(chunks, size) {\n    if (chunks[0].length === size) {\n        return chunks.shift();\n    }\n    const buffer = new Uint8Array(size);\n    let j = 0;\n    for (let i = 0; i < size; i++) {\n        buffer[i] = chunks[0][j++];\n        if (j === chunks[0].length) {\n            chunks.shift();\n            j = 0;\n        }\n    }\n    if (chunks.length && j < chunks[0].length) {\n        chunks[0] = chunks[0].slice(j);\n    }\n    return buffer;\n}\nexport function createPacketDecoderStream(maxPayload, binaryType) {\n    if (!TEXT_DECODER) {\n        TEXT_DECODER = new TextDecoder();\n    }\n    const chunks = [];\n    let state = 0 /* READ_HEADER */;\n    let expectedLength = -1;\n    let isBinary = false;\n    return new TransformStream({\n        transform(chunk, controller) {\n            chunks.push(chunk);\n            while (true) {\n                if (state === 0 /* READ_HEADER */) {\n                    if (totalLength(chunks) < 1) {\n                        break;\n                    }\n                    const header = concatChunks(chunks, 1);\n                    isBinary = (header[0] & 0x80) === 0x80;\n                    expectedLength = header[0] & 0x7f;\n                    if (expectedLength < 126) {\n                        state = 3 /* READ_PAYLOAD */;\n                    }\n                    else if (expectedLength === 126) {\n                        state = 1 /* READ_EXTENDED_LENGTH_16 */;\n                    }\n                    else {\n                        state = 2 /* READ_EXTENDED_LENGTH_64 */;\n                    }\n                }\n                else if (state === 1 /* READ_EXTENDED_LENGTH_16 */) {\n                    if (totalLength(chunks) < 2) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 2);\n                    expectedLength = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length).getUint16(0);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else if (state === 2 /* READ_EXTENDED_LENGTH_64 */) {\n                    if (totalLength(chunks) < 8) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 8);\n                    const view = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length);\n                    const n = view.getUint32(0);\n                    if (n > Math.pow(2, 53 - 32) - 1) {\n                        // the maximum safe integer in JavaScript is 2^53 - 1\n                        controller.enqueue(ERROR_PACKET);\n                        break;\n                    }\n                    expectedLength = n * Math.pow(2, 32) + view.getUint32(4);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else {\n                    if (totalLength(chunks) < expectedLength) {\n                        break;\n                    }\n                    const data = concatChunks(chunks, expectedLength);\n                    controller.enqueue(decodePacket(isBinary ? data : TEXT_DECODER.decode(data), binaryType));\n                    state = 0 /* READ_HEADER */;\n                }\n                if (expectedLength === 0 || expectedLength > maxPayload) {\n                    controller.enqueue(ERROR_PACKET);\n                    break;\n                }\n            }\n        }\n    });\n}\nexport const protocol = 4;\nexport { encodePacket, encodePayload, decodePacket, decodePayload };\n", "/**\n * Initialize a new `Emitter`.\n *\n * @api public\n */\n\nexport function Emitter(obj) {\n  if (obj) return mixin(obj);\n}\n\n/**\n * Mixin the emitter properties.\n *\n * @param {Object} obj\n * @return {Object}\n * @api private\n */\n\nfunction mixin(obj) {\n  for (var key in Emitter.prototype) {\n    obj[key] = Emitter.prototype[key];\n  }\n  return obj;\n}\n\n/**\n * Listen on the given `event` with `fn`.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.on =\nEmitter.prototype.addEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])\n    .push(fn);\n  return this;\n};\n\n/**\n * Adds an `event` listener that will be invoked a single\n * time then automatically removed.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.once = function(event, fn){\n  function on() {\n    this.off(event, on);\n    fn.apply(this, arguments);\n  }\n\n  on.fn = fn;\n  this.on(event, on);\n  return this;\n};\n\n/**\n * Remove the given callback for `event` or all\n * registered callbacks.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.off =\nEmitter.prototype.removeListener =\nEmitter.prototype.removeAllListeners =\nEmitter.prototype.removeEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n\n  // all\n  if (0 == arguments.length) {\n    this._callbacks = {};\n    return this;\n  }\n\n  // specific event\n  var callbacks = this._callbacks['$' + event];\n  if (!callbacks) return this;\n\n  // remove all handlers\n  if (1 == arguments.length) {\n    delete this._callbacks['$' + event];\n    return this;\n  }\n\n  // remove specific handler\n  var cb;\n  for (var i = 0; i < callbacks.length; i++) {\n    cb = callbacks[i];\n    if (cb === fn || cb.fn === fn) {\n      callbacks.splice(i, 1);\n      break;\n    }\n  }\n\n  // Remove event specific arrays for event types that no\n  // one is subscribed for to avoid memory leak.\n  if (callbacks.length === 0) {\n    delete this._callbacks['$' + event];\n  }\n\n  return this;\n};\n\n/**\n * Emit `event` with the given args.\n *\n * @param {String} event\n * @param {Mixed} ...\n * @return {Emitter}\n */\n\nEmitter.prototype.emit = function(event){\n  this._callbacks = this._callbacks || {};\n\n  var args = new Array(arguments.length - 1)\n    , callbacks = this._callbacks['$' + event];\n\n  for (var i = 1; i < arguments.length; i++) {\n    args[i - 1] = arguments[i];\n  }\n\n  if (callbacks) {\n    callbacks = callbacks.slice(0);\n    for (var i = 0, len = callbacks.length; i < len; ++i) {\n      callbacks[i].apply(this, args);\n    }\n  }\n\n  return this;\n};\n\n// alias used for reserved events (protected method)\nEmitter.prototype.emitReserved = Emitter.prototype.emit;\n\n/**\n * Return array of callbacks for `event`.\n *\n * @param {String} event\n * @return {Array}\n * @api public\n */\n\nEmitter.prototype.listeners = function(event){\n  this._callbacks = this._callbacks || {};\n  return this._callbacks['$' + event] || [];\n};\n\n/**\n * Check if this emitter has `event` handlers.\n *\n * @param {String} event\n * @return {Boolean}\n * @api public\n */\n\nEmitter.prototype.hasListeners = function(event){\n  return !! this.listeners(event).length;\n};\n", "export const globalThisShim = (() => {\n    if (typeof self !== \"undefined\") {\n        return self;\n    }\n    else if (typeof window !== \"undefined\") {\n        return window;\n    }\n    else {\n        return Function(\"return this\")();\n    }\n})();\n", "import { globalThisShim as globalThis } from \"./globalThis.js\";\nexport function pick(obj, ...attr) {\n    return attr.reduce((acc, k) => {\n        if (obj.hasOwnProperty(k)) {\n            acc[k] = obj[k];\n        }\n        return acc;\n    }, {});\n}\n// Keep a reference to the real timeout functions so they can be used when overridden\nconst NATIVE_SET_TIMEOUT = globalThis.setTimeout;\nconst NATIVE_CLEAR_TIMEOUT = globalThis.clearTimeout;\nexport function installTimerFunctions(obj, opts) {\n    if (opts.useNativeTimers) {\n        obj.setTimeoutFn = NATIVE_SET_TIMEOUT.bind(globalThis);\n        obj.clearTimeoutFn = NATIVE_CLEAR_TIMEOUT.bind(globalThis);\n    }\n    else {\n        obj.setTimeoutFn = globalThis.setTimeout.bind(globalThis);\n        obj.clearTimeoutFn = globalThis.clearTimeout.bind(globalThis);\n    }\n}\n// base64 encoded buffers are about 33% bigger (https://en.wikipedia.org/wiki/Base64)\nconst BASE64_OVERHEAD = 1.33;\n// we could also have used `new Blob([obj]).size`, but it isn't supported in IE9\nexport function byteLength(obj) {\n    if (typeof obj === \"string\") {\n        return utf8Length(obj);\n    }\n    // arraybuffer or blob\n    return Math.ceil((obj.byteLength || obj.size) * BASE64_OVERHEAD);\n}\nfunction utf8Length(str) {\n    let c = 0, length = 0;\n    for (let i = 0, l = str.length; i < l; i++) {\n        c = str.charCodeAt(i);\n        if (c < 0x80) {\n            length += 1;\n        }\n        else if (c < 0x800) {\n            length += 2;\n        }\n        else if (c < 0xd800 || c >= 0xe000) {\n            length += 3;\n        }\n        else {\n            i++;\n            length += 4;\n        }\n    }\n    return length;\n}\n", "// imported from https://github.com/galkn/querystring\n/**\n * Compiles a querystring\n * Returns string representation of the object\n *\n * @param {Object}\n * @api private\n */\nexport function encode(obj) {\n    let str = '';\n    for (let i in obj) {\n        if (obj.hasOwnProperty(i)) {\n            if (str.length)\n                str += '&';\n            str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);\n        }\n    }\n    return str;\n}\n/**\n * Parses a simple querystring into an object\n *\n * @param {String} qs\n * @api private\n */\nexport function decode(qs) {\n    let qry = {};\n    let pairs = qs.split('&');\n    for (let i = 0, l = pairs.length; i < l; i++) {\n        let pair = pairs[i].split('=');\n        qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);\n    }\n    return qry;\n}\n", "import { decodePacket } from \"engine.io-parser\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions } from \"./util.js\";\nimport { encode } from \"./contrib/parseqs.js\";\nexport class TransportError extends Error {\n    constructor(reason, description, context) {\n        super(reason);\n        this.description = description;\n        this.context = context;\n        this.type = \"TransportError\";\n    }\n}\nexport class Transport extends Emitter {\n    /**\n     * Transport abstract constructor.\n     *\n     * @param {Object} opts - options\n     * @protected\n     */\n    constructor(opts) {\n        super();\n        this.writable = false;\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.query = opts.query;\n        this.socket = opts.socket;\n    }\n    /**\n     * Emits an error.\n     *\n     * @param {String} reason\n     * @param description\n     * @param context - the error context\n     * @return {Transport} for chaining\n     * @protected\n     */\n    onError(reason, description, context) {\n        super.emitReserved(\"error\", new TransportError(reason, description, context));\n        return this;\n    }\n    /**\n     * Opens the transport.\n     */\n    open() {\n        this.readyState = \"opening\";\n        this.doOpen();\n        return this;\n    }\n    /**\n     * Closes the transport.\n     */\n    close() {\n        if (this.readyState === \"opening\" || this.readyState === \"open\") {\n            this.doClose();\n            this.onClose();\n        }\n        return this;\n    }\n    /**\n     * Sends multiple packets.\n     *\n     * @param {Array} packets\n     */\n    send(packets) {\n        if (this.readyState === \"open\") {\n            this.write(packets);\n        }\n        else {\n            // this might happen if the transport was silently closed in the beforeunload event handler\n        }\n    }\n    /**\n     * Called upon open\n     *\n     * @protected\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        this.writable = true;\n        super.emitReserved(\"open\");\n    }\n    /**\n     * Called with data.\n     *\n     * @param {String} data\n     * @protected\n     */\n    onData(data) {\n        const packet = decodePacket(data, this.socket.binaryType);\n        this.onPacket(packet);\n    }\n    /**\n     * Called with a decoded packet.\n     *\n     * @protected\n     */\n    onPacket(packet) {\n        super.emitReserved(\"packet\", packet);\n    }\n    /**\n     * Called upon close.\n     *\n     * @protected\n     */\n    onClose(details) {\n        this.readyState = \"closed\";\n        super.emitReserved(\"close\", details);\n    }\n    /**\n     * Pauses the transport, in order not to lose packets during an upgrade.\n     *\n     * @param onPause\n     */\n    pause(onPause) { }\n    createUri(schema, query = {}) {\n        return (schema +\n            \"://\" +\n            this._hostname() +\n            this._port() +\n            this.opts.path +\n            this._query(query));\n    }\n    _hostname() {\n        const hostname = this.opts.hostname;\n        return hostname.indexOf(\":\") === -1 ? hostname : \"[\" + hostname + \"]\";\n    }\n    _port() {\n        if (this.opts.port &&\n            ((this.opts.secure && Number(this.opts.port !== 443)) ||\n                (!this.opts.secure && Number(this.opts.port) !== 80))) {\n            return \":\" + this.opts.port;\n        }\n        else {\n            return \"\";\n        }\n    }\n    _query(query) {\n        const encodedQuery = encode(query);\n        return encodedQuery.length ? \"?\" + encodedQuery : \"\";\n    }\n}\n", "// imported from https://github.com/unshiftio/yeast\n'use strict';\nconst alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split(''), length = 64, map = {};\nlet seed = 0, i = 0, prev;\n/**\n * Return a string representing the specified number.\n *\n * @param {Number} num The number to convert.\n * @returns {String} The string representation of the number.\n * @api public\n */\nexport function encode(num) {\n    let encoded = '';\n    do {\n        encoded = alphabet[num % length] + encoded;\n        num = Math.floor(num / length);\n    } while (num > 0);\n    return encoded;\n}\n/**\n * Return the integer value specified by the given string.\n *\n * @param {String} str The string to convert.\n * @returns {Number} The integer value represented by the string.\n * @api public\n */\nexport function decode(str) {\n    let decoded = 0;\n    for (i = 0; i < str.length; i++) {\n        decoded = decoded * length + map[str.charAt(i)];\n    }\n    return decoded;\n}\n/**\n * Yeast: A tiny growing id generator.\n *\n * @returns {String} A unique id.\n * @api public\n */\nexport function yeast() {\n    const now = encode(+new Date());\n    if (now !== prev)\n        return seed = 0, prev = now;\n    return now + '.' + encode(seed++);\n}\n//\n// Map each character to its index.\n//\nfor (; i < length; i++)\n    map[alphabet[i]] = i;\n", "// imported from https://github.com/component/has-cors\nlet value = false;\ntry {\n    value = typeof XMLHttpRequest !== 'undefined' &&\n        'withCredentials' in new XMLHttpRequest();\n}\ncatch (err) {\n    // if XMLHttp support is disabled in IE then it will throw\n    // when trying to create\n}\nexport const hasCORS = value;\n", "// browser shim for xmlhttprequest module\nimport { hasCORS } from \"../contrib/has-cors.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nexport function XHR(opts) {\n    const xdomain = opts.xdomain;\n    // XMLHttpRequest can be disabled on IE\n    try {\n        if (\"undefined\" !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {\n            return new XMLHttpRequest();\n        }\n    }\n    catch (e) { }\n    if (!xdomain) {\n        try {\n            return new globalThis[[\"Active\"].concat(\"Object\").join(\"X\")](\"Microsoft.XMLHTTP\");\n        }\n        catch (e) { }\n    }\n}\nexport function createCookieJar() { }\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { encodePayload, decodePayload } from \"engine.io-parser\";\nimport { createCookieJar, XHR as XMLHttpRequest, } from \"./xmlhttprequest.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions, pick } from \"../util.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nfunction empty() { }\nconst hasXHR2 = (function () {\n    const xhr = new XMLHttpRequest({\n        xdomain: false,\n    });\n    return null != xhr.responseType;\n})();\nexport class Polling extends Transport {\n    /**\n     * XHR Polling constructor.\n     *\n     * @param {Object} opts\n     * @package\n     */\n    constructor(opts) {\n        super(opts);\n        this.polling = false;\n        if (typeof location !== \"undefined\") {\n            const isSSL = \"https:\" === location.protocol;\n            let port = location.port;\n            // some user agents have empty `location.port`\n            if (!port) {\n                port = isSSL ? \"443\" : \"80\";\n            }\n            this.xd =\n                (typeof location !== \"undefined\" &&\n                    opts.hostname !== location.hostname) ||\n                    port !== opts.port;\n        }\n        /**\n         * XHR supports binary\n         */\n        const forceBase64 = opts && opts.forceBase64;\n        this.supportsBinary = hasXHR2 && !forceBase64;\n        if (this.opts.withCredentials) {\n            this.cookieJar = createCookieJar();\n        }\n    }\n    get name() {\n        return \"polling\";\n    }\n    /**\n     * Opens the socket (triggers polling). We write a PING message to determine\n     * when the transport is open.\n     *\n     * @protected\n     */\n    doOpen() {\n        this.poll();\n    }\n    /**\n     * Pauses polling.\n     *\n     * @param {Function} onPause - callback upon buffers are flushed and transport is paused\n     * @package\n     */\n    pause(onPause) {\n        this.readyState = \"pausing\";\n        const pause = () => {\n            this.readyState = \"paused\";\n            onPause();\n        };\n        if (this.polling || !this.writable) {\n            let total = 0;\n            if (this.polling) {\n                total++;\n                this.once(\"pollComplete\", function () {\n                    --total || pause();\n                });\n            }\n            if (!this.writable) {\n                total++;\n                this.once(\"drain\", function () {\n                    --total || pause();\n                });\n            }\n        }\n        else {\n            pause();\n        }\n    }\n    /**\n     * Starts polling cycle.\n     *\n     * @private\n     */\n    poll() {\n        this.polling = true;\n        this.doPoll();\n        this.emitReserved(\"poll\");\n    }\n    /**\n     * Overloads onData to detect payloads.\n     *\n     * @protected\n     */\n    onData(data) {\n        const callback = (packet) => {\n            // if its the first message we consider the transport open\n            if (\"opening\" === this.readyState && packet.type === \"open\") {\n                this.onOpen();\n            }\n            // if its a close packet, we close the ongoing requests\n            if (\"close\" === packet.type) {\n                this.onClose({ description: \"transport closed by the server\" });\n                return false;\n            }\n            // otherwise bypass onData and handle the message\n            this.onPacket(packet);\n        };\n        // decode payload\n        decodePayload(data, this.socket.binaryType).forEach(callback);\n        // if an event did not trigger closing\n        if (\"closed\" !== this.readyState) {\n            // if we got data we're not polling\n            this.polling = false;\n            this.emitReserved(\"pollComplete\");\n            if (\"open\" === this.readyState) {\n                this.poll();\n            }\n            else {\n            }\n        }\n    }\n    /**\n     * For polling, send a close packet.\n     *\n     * @protected\n     */\n    doClose() {\n        const close = () => {\n            this.write([{ type: \"close\" }]);\n        };\n        if (\"open\" === this.readyState) {\n            close();\n        }\n        else {\n            // in case we're trying to close while\n            // handshaking is in progress (GH-164)\n            this.once(\"open\", close);\n        }\n    }\n    /**\n     * Writes a packets payload.\n     *\n     * @param {Array} packets - data packets\n     * @protected\n     */\n    write(packets) {\n        this.writable = false;\n        encodePayload(packets, (data) => {\n            this.doWrite(data, () => {\n                this.writable = true;\n                this.emitReserved(\"drain\");\n            });\n        });\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"https\" : \"http\";\n        const query = this.query || {};\n        // cache busting is forced\n        if (false !== this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        if (!this.supportsBinary && !query.sid) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Creates a request.\n     *\n     * @param {String} method\n     * @private\n     */\n    request(opts = {}) {\n        Object.assign(opts, { xd: this.xd, cookieJar: this.cookieJar }, this.opts);\n        return new Request(this.uri(), opts);\n    }\n    /**\n     * Sends data.\n     *\n     * @param {String} data to send.\n     * @param {Function} called upon flush.\n     * @private\n     */\n    doWrite(data, fn) {\n        const req = this.request({\n            method: \"POST\",\n            data: data,\n        });\n        req.on(\"success\", fn);\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr post error\", xhrStatus, context);\n        });\n    }\n    /**\n     * Starts a poll cycle.\n     *\n     * @private\n     */\n    doPoll() {\n        const req = this.request();\n        req.on(\"data\", this.onData.bind(this));\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr poll error\", xhrStatus, context);\n        });\n        this.pollXhr = req;\n    }\n}\nexport class Request extends Emitter {\n    /**\n     * Request constructor\n     *\n     * @param {Object} options\n     * @package\n     */\n    constructor(uri, opts) {\n        super();\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.method = opts.method || \"GET\";\n        this.uri = uri;\n        this.data = undefined !== opts.data ? opts.data : null;\n        this.create();\n    }\n    /**\n     * Creates the XHR object and sends the request.\n     *\n     * @private\n     */\n    create() {\n        var _a;\n        const opts = pick(this.opts, \"agent\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"autoUnref\");\n        opts.xdomain = !!this.opts.xd;\n        const xhr = (this.xhr = new XMLHttpRequest(opts));\n        try {\n            xhr.open(this.method, this.uri, true);\n            try {\n                if (this.opts.extraHeaders) {\n                    xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);\n                    for (let i in this.opts.extraHeaders) {\n                        if (this.opts.extraHeaders.hasOwnProperty(i)) {\n                            xhr.setRequestHeader(i, this.opts.extraHeaders[i]);\n                        }\n                    }\n                }\n            }\n            catch (e) { }\n            if (\"POST\" === this.method) {\n                try {\n                    xhr.setRequestHeader(\"Content-type\", \"text/plain;charset=UTF-8\");\n                }\n                catch (e) { }\n            }\n            try {\n                xhr.setRequestHeader(\"Accept\", \"*/*\");\n            }\n            catch (e) { }\n            (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.addCookies(xhr);\n            // ie6 check\n            if (\"withCredentials\" in xhr) {\n                xhr.withCredentials = this.opts.withCredentials;\n            }\n            if (this.opts.requestTimeout) {\n                xhr.timeout = this.opts.requestTimeout;\n            }\n            xhr.onreadystatechange = () => {\n                var _a;\n                if (xhr.readyState === 3) {\n                    (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.parseCookies(xhr);\n                }\n                if (4 !== xhr.readyState)\n                    return;\n                if (200 === xhr.status || 1223 === xhr.status) {\n                    this.onLoad();\n                }\n                else {\n                    // make sure the `error` event handler that's user-set\n                    // does not throw in the same tick and gets caught here\n                    this.setTimeoutFn(() => {\n                        this.onError(typeof xhr.status === \"number\" ? xhr.status : 0);\n                    }, 0);\n                }\n            };\n            xhr.send(this.data);\n        }\n        catch (e) {\n            // Need to defer since .create() is called directly from the constructor\n            // and thus the 'error' event can only be only bound *after* this exception\n            // occurs.  Therefore, also, we cannot throw here at all.\n            this.setTimeoutFn(() => {\n                this.onError(e);\n            }, 0);\n            return;\n        }\n        if (typeof document !== \"undefined\") {\n            this.index = Request.requestsCount++;\n            Request.requests[this.index] = this;\n        }\n    }\n    /**\n     * Called upon error.\n     *\n     * @private\n     */\n    onError(err) {\n        this.emitReserved(\"error\", err, this.xhr);\n        this.cleanup(true);\n    }\n    /**\n     * Cleans up house.\n     *\n     * @private\n     */\n    cleanup(fromError) {\n        if (\"undefined\" === typeof this.xhr || null === this.xhr) {\n            return;\n        }\n        this.xhr.onreadystatechange = empty;\n        if (fromError) {\n            try {\n                this.xhr.abort();\n            }\n            catch (e) { }\n        }\n        if (typeof document !== \"undefined\") {\n            delete Request.requests[this.index];\n        }\n        this.xhr = null;\n    }\n    /**\n     * Called upon load.\n     *\n     * @private\n     */\n    onLoad() {\n        const data = this.xhr.responseText;\n        if (data !== null) {\n            this.emitReserved(\"data\", data);\n            this.emitReserved(\"success\");\n            this.cleanup();\n        }\n    }\n    /**\n     * Aborts the request.\n     *\n     * @package\n     */\n    abort() {\n        this.cleanup();\n    }\n}\nRequest.requestsCount = 0;\nRequest.requests = {};\n/**\n * Aborts pending requests when unloading the window. This is needed to prevent\n * memory leaks (e.g. when using IE) and to ensure that no spurious error is\n * emitted.\n */\nif (typeof document !== \"undefined\") {\n    // @ts-ignore\n    if (typeof attachEvent === \"function\") {\n        // @ts-ignore\n        attachEvent(\"onunload\", unloadHandler);\n    }\n    else if (typeof addEventListener === \"function\") {\n        const terminationEvent = \"onpagehide\" in globalThis ? \"pagehide\" : \"unload\";\n        addEventListener(terminationEvent, unloadHandler, false);\n    }\n}\nfunction unloadHandler() {\n    for (let i in Request.requests) {\n        if (Request.requests.hasOwnProperty(i)) {\n            Request.requests[i].abort();\n        }\n    }\n}\n", "import { globalThisShim as globalThis } from \"../globalThis.js\";\nexport const nextTick = (() => {\n    const isPromiseAvailable = typeof Promise === \"function\" && typeof Promise.resolve === \"function\";\n    if (isPromiseAvailable) {\n        return (cb) => Promise.resolve().then(cb);\n    }\n    else {\n        return (cb, setTimeoutFn) => setTimeoutFn(cb, 0);\n    }\n})();\nexport const WebSocket = globalThis.WebSocket || globalThis.MozWebSocket;\nexport const usingBrowserWebSocket = true;\nexport const defaultBinaryType = \"arraybuffer\";\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { pick } from \"../util.js\";\nimport { nextTick, usingBrowserWebSocket, WebSocket, } from \"./websocket-constructor.js\";\nimport { encodePacket } from \"engine.io-parser\";\n// detect ReactNative environment\nconst isReactNative = typeof navigator !== \"undefined\" &&\n    typeof navigator.product === \"string\" &&\n    navigator.product.toLowerCase() === \"reactnative\";\nexport class WS extends Transport {\n    /**\n     * WebSocket transport constructor.\n     *\n     * @param {Object} opts - connection options\n     * @protected\n     */\n    constructor(opts) {\n        super(opts);\n        this.supportsBinary = !opts.forceBase64;\n    }\n    get name() {\n        return \"websocket\";\n    }\n    doOpen() {\n        if (!this.check()) {\n            // let probe timeout\n            return;\n        }\n        const uri = this.uri();\n        const protocols = this.opts.protocols;\n        // React Native only supports the 'headers' option, and will print a warning if anything else is passed\n        const opts = isReactNative\n            ? {}\n            : pick(this.opts, \"agent\", \"perMessageDeflate\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"localAddress\", \"protocolVersion\", \"origin\", \"maxPayload\", \"family\", \"checkServerIdentity\");\n        if (this.opts.extraHeaders) {\n            opts.headers = this.opts.extraHeaders;\n        }\n        try {\n            this.ws =\n                usingBrowserWebSocket && !isReactNative\n                    ? protocols\n                        ? new WebSocket(uri, protocols)\n                        : new WebSocket(uri)\n                    : new WebSocket(uri, protocols, opts);\n        }\n        catch (err) {\n            return this.emitReserved(\"error\", err);\n        }\n        this.ws.binaryType = this.socket.binaryType;\n        this.addEventListeners();\n    }\n    /**\n     * Adds event listeners to the socket\n     *\n     * @private\n     */\n    addEventListeners() {\n        this.ws.onopen = () => {\n            if (this.opts.autoUnref) {\n                this.ws._socket.unref();\n            }\n            this.onOpen();\n        };\n        this.ws.onclose = (closeEvent) => this.onClose({\n            description: \"websocket connection closed\",\n            context: closeEvent,\n        });\n        this.ws.onmessage = (ev) => this.onData(ev.data);\n        this.ws.onerror = (e) => this.onError(\"websocket error\", e);\n    }\n    write(packets) {\n        this.writable = false;\n        // encodePacket efficient as it uses WS framing\n        // no need for encodePayload\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            encodePacket(packet, this.supportsBinary, (data) => {\n                // always create a new object (GH-437)\n                const opts = {};\n                if (!usingBrowserWebSocket) {\n                    if (packet.options) {\n                        opts.compress = packet.options.compress;\n                    }\n                    if (this.opts.perMessageDeflate) {\n                        const len = \n                        // @ts-ignore\n                        \"string\" === typeof data ? Buffer.byteLength(data) : data.length;\n                        if (len < this.opts.perMessageDeflate.threshold) {\n                            opts.compress = false;\n                        }\n                    }\n                }\n                // Sometimes the websocket has already been closed but the browser didn't\n                // have a chance of informing us about it yet, in that case send will\n                // throw an error\n                try {\n                    if (usingBrowserWebSocket) {\n                        // TypeError is thrown when passing the second argument on Safari\n                        this.ws.send(data);\n                    }\n                    else {\n                        this.ws.send(data, opts);\n                    }\n                }\n                catch (e) {\n                }\n                if (lastPacket) {\n                    // fake drain\n                    // defer to next tick to allow Socket to clear writeBuffer\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        if (typeof this.ws !== \"undefined\") {\n            this.ws.close();\n            this.ws = null;\n        }\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"wss\" : \"ws\";\n        const query = this.query || {};\n        // append timestamp to URI\n        if (this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        // communicate binary support capabilities\n        if (!this.supportsBinary) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Feature detection for WebSocket.\n     *\n     * @return {Boolean} whether this transport is available.\n     * @private\n     */\n    check() {\n        return !!WebSocket;\n    }\n}\n", "import { Transport } from \"../transport.js\";\nimport { nextTick } from \"./websocket-constructor.js\";\nimport { createPacketDecoderStream, createPacketEncoderStream, } from \"engine.io-parser\";\nexport class WT extends Transport {\n    get name() {\n        return \"webtransport\";\n    }\n    doOpen() {\n        // @ts-ignore\n        if (typeof WebTransport !== \"function\") {\n            return;\n        }\n        // @ts-ignore\n        this.transport = new WebTransport(this.createUri(\"https\"), this.opts.transportOptions[this.name]);\n        this.transport.closed\n            .then(() => {\n            this.onClose();\n        })\n            .catch((err) => {\n            this.onError(\"webtransport error\", err);\n        });\n        // note: we could have used async/await, but that would require some additional polyfills\n        this.transport.ready.then(() => {\n            this.transport.createBidirectionalStream().then((stream) => {\n                const decoderStream = createPacketDecoderStream(Number.MAX_SAFE_INTEGER, this.socket.binaryType);\n                const reader = stream.readable.pipeThrough(decoderStream).getReader();\n                const encoderStream = createPacketEncoderStream();\n                encoderStream.readable.pipeTo(stream.writable);\n                this.writer = encoderStream.writable.getWriter();\n                const read = () => {\n                    reader\n                        .read()\n                        .then(({ done, value }) => {\n                        if (done) {\n                            return;\n                        }\n                        this.onPacket(value);\n                        read();\n                    })\n                        .catch((err) => {\n                    });\n                };\n                read();\n                const packet = { type: \"open\" };\n                if (this.query.sid) {\n                    packet.data = `{\"sid\":\"${this.query.sid}\"}`;\n                }\n                this.writer.write(packet).then(() => this.onOpen());\n            });\n        });\n    }\n    write(packets) {\n        this.writable = false;\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            this.writer.write(packet).then(() => {\n                if (lastPacket) {\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        var _a;\n        (_a = this.transport) === null || _a === void 0 ? void 0 : _a.close();\n    }\n}\n", "import { Polling } from \"./polling.js\";\nimport { WS } from \"./websocket.js\";\nimport { WT } from \"./webtransport.js\";\nexport const transports = {\n    websocket: WS,\n    webtransport: WT,\n    polling: Polling,\n};\n", "// imported from https://github.com/galkn/parseuri\n/**\n * Parses a URI\n *\n * Note: we could also have used the built-in URL object, but it isn't supported on all platforms.\n *\n * See:\n * - https://developer.mozilla.org/en-US/docs/Web/API/URL\n * - https://caniuse.com/url\n * - https://www.rfc-editor.org/rfc/rfc3986#appendix-B\n *\n * History of the parse() method:\n * - first commit: https://github.com/socketio/socket.io-client/commit/4ee1d5d94b3906a9c052b459f1a818b15f38f91c\n * - export into its own module: https://github.com/socketio/engine.io-client/commit/de2c561e4564efeb78f1bdb1ba39ef81b2822cb3\n * - reimport: https://github.com/socketio/engine.io-client/commit/df32277c3f6d622eec5ed09f493cae3f3391d242\n *\n * @author Steven Levithan <stevenlevithan.com> (MIT license)\n * @api private\n */\nconst re = /^(?:(?![^:@\\/?#]+:[^:@\\/]*@)(http|https|ws|wss):\\/\\/)?((?:(([^:@\\/?#]*)(?::([^:@\\/?#]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\\/?#]*)(?::(\\d*))?)(((\\/(?:[^?#](?![^?#\\/]*\\.[^?#\\/.]+(?:[?#]|$)))*\\/?)?([^?#\\/]*))(?:\\?([^#]*))?(?:#(.*))?)/;\nconst parts = [\n    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'\n];\nexport function parse(str) {\n    if (str.length > 2000) {\n        throw \"URI too long\";\n    }\n    const src = str, b = str.indexOf('['), e = str.indexOf(']');\n    if (b != -1 && e != -1) {\n        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);\n    }\n    let m = re.exec(str || ''), uri = {}, i = 14;\n    while (i--) {\n        uri[parts[i]] = m[i] || '';\n    }\n    if (b != -1 && e != -1) {\n        uri.source = src;\n        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');\n        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');\n        uri.ipv6uri = true;\n    }\n    uri.pathNames = pathNames(uri, uri['path']);\n    uri.queryKey = queryKey(uri, uri['query']);\n    return uri;\n}\nfunction pathNames(obj, path) {\n    const regx = /\\/{2,9}/g, names = path.replace(regx, \"/\").split(\"/\");\n    if (path.slice(0, 1) == '/' || path.length === 0) {\n        names.splice(0, 1);\n    }\n    if (path.slice(-1) == '/') {\n        names.splice(names.length - 1, 1);\n    }\n    return names;\n}\nfunction queryKey(uri, query) {\n    const data = {};\n    query.replace(/(?:^|&)([^&=]*)=?([^&]*)/g, function ($0, $1, $2) {\n        if ($1) {\n            data[$1] = $2;\n        }\n    });\n    return data;\n}\n", "import { transports } from \"./transports/index.js\";\nimport { installTimerFunctions, byteLength } from \"./util.js\";\nimport { decode } from \"./contrib/parseqs.js\";\nimport { parse } from \"./contrib/parseuri.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { protocol } from \"engine.io-parser\";\nimport { defaultBinaryType } from \"./transports/websocket-constructor.js\";\nexport class Socket extends Emitter {\n    /**\n     * Socket constructor.\n     *\n     * @param {String|Object} uri - uri or options\n     * @param {Object} opts - options\n     */\n    constructor(uri, opts = {}) {\n        super();\n        this.binaryType = defaultBinaryType;\n        this.writeBuffer = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = null;\n        }\n        if (uri) {\n            uri = parse(uri);\n            opts.hostname = uri.host;\n            opts.secure = uri.protocol === \"https\" || uri.protocol === \"wss\";\n            opts.port = uri.port;\n            if (uri.query)\n                opts.query = uri.query;\n        }\n        else if (opts.host) {\n            opts.hostname = parse(opts.host).host;\n        }\n        installTimerFunctions(this, opts);\n        this.secure =\n            null != opts.secure\n                ? opts.secure\n                : typeof location !== \"undefined\" && \"https:\" === location.protocol;\n        if (opts.hostname && !opts.port) {\n            // if no port is specified manually, use the protocol default\n            opts.port = this.secure ? \"443\" : \"80\";\n        }\n        this.hostname =\n            opts.hostname ||\n                (typeof location !== \"undefined\" ? location.hostname : \"localhost\");\n        this.port =\n            opts.port ||\n                (typeof location !== \"undefined\" && location.port\n                    ? location.port\n                    : this.secure\n                        ? \"443\"\n                        : \"80\");\n        this.transports = opts.transports || [\n            \"polling\",\n            \"websocket\",\n            \"webtransport\",\n        ];\n        this.writeBuffer = [];\n        this.prevBufferLen = 0;\n        this.opts = Object.assign({\n            path: \"/engine.io\",\n            agent: false,\n            withCredentials: false,\n            upgrade: true,\n            timestampParam: \"t\",\n            rememberUpgrade: false,\n            addTrailingSlash: true,\n            rejectUnauthorized: true,\n            perMessageDeflate: {\n                threshold: 1024,\n            },\n            transportOptions: {},\n            closeOnBeforeunload: false,\n        }, opts);\n        this.opts.path =\n            this.opts.path.replace(/\\/$/, \"\") +\n                (this.opts.addTrailingSlash ? \"/\" : \"\");\n        if (typeof this.opts.query === \"string\") {\n            this.opts.query = decode(this.opts.query);\n        }\n        // set on handshake\n        this.id = null;\n        this.upgrades = null;\n        this.pingInterval = null;\n        this.pingTimeout = null;\n        // set on heartbeat\n        this.pingTimeoutTimer = null;\n        if (typeof addEventListener === \"function\") {\n            if (this.opts.closeOnBeforeunload) {\n                // Firefox closes the connection when the \"beforeunload\" event is emitted but not Chrome. This event listener\n                // ensures every browser behaves the same (no \"disconnect\" event at the Socket.IO level when the page is\n                // closed/reloaded)\n                this.beforeunloadEventListener = () => {\n                    if (this.transport) {\n                        // silently close the transport\n                        this.transport.removeAllListeners();\n                        this.transport.close();\n                    }\n                };\n                addEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n            }\n            if (this.hostname !== \"localhost\") {\n                this.offlineEventListener = () => {\n                    this.onClose(\"transport close\", {\n                        description: \"network connection lost\",\n                    });\n                };\n                addEventListener(\"offline\", this.offlineEventListener, false);\n            }\n        }\n        this.open();\n    }\n    /**\n     * Creates transport of the given type.\n     *\n     * @param {String} name - transport name\n     * @return {Transport}\n     * @private\n     */\n    createTransport(name) {\n        const query = Object.assign({}, this.opts.query);\n        // append engine.io protocol identifier\n        query.EIO = protocol;\n        // transport name\n        query.transport = name;\n        // session id if we already have one\n        if (this.id)\n            query.sid = this.id;\n        const opts = Object.assign({}, this.opts, {\n            query,\n            socket: this,\n            hostname: this.hostname,\n            secure: this.secure,\n            port: this.port,\n        }, this.opts.transportOptions[name]);\n        return new transports[name](opts);\n    }\n    /**\n     * Initializes transport to use and starts probe.\n     *\n     * @private\n     */\n    open() {\n        let transport;\n        if (this.opts.rememberUpgrade &&\n            Socket.priorWebsocketSuccess &&\n            this.transports.indexOf(\"websocket\") !== -1) {\n            transport = \"websocket\";\n        }\n        else if (0 === this.transports.length) {\n            // Emit error on next tick so it can be listened to\n            this.setTimeoutFn(() => {\n                this.emitReserved(\"error\", \"No transports available\");\n            }, 0);\n            return;\n        }\n        else {\n            transport = this.transports[0];\n        }\n        this.readyState = \"opening\";\n        // Retry with the next transport if the transport is disabled (jsonp: false)\n        try {\n            transport = this.createTransport(transport);\n        }\n        catch (e) {\n            this.transports.shift();\n            this.open();\n            return;\n        }\n        transport.open();\n        this.setTransport(transport);\n    }\n    /**\n     * Sets the current transport. Disables the existing one (if any).\n     *\n     * @private\n     */\n    setTransport(transport) {\n        if (this.transport) {\n            this.transport.removeAllListeners();\n        }\n        // set up transport\n        this.transport = transport;\n        // set up transport listeners\n        transport\n            .on(\"drain\", this.onDrain.bind(this))\n            .on(\"packet\", this.onPacket.bind(this))\n            .on(\"error\", this.onError.bind(this))\n            .on(\"close\", (reason) => this.onClose(\"transport close\", reason));\n    }\n    /**\n     * Probes a transport.\n     *\n     * @param {String} name - transport name\n     * @private\n     */\n    probe(name) {\n        let transport = this.createTransport(name);\n        let failed = false;\n        Socket.priorWebsocketSuccess = false;\n        const onTransportOpen = () => {\n            if (failed)\n                return;\n            transport.send([{ type: \"ping\", data: \"probe\" }]);\n            transport.once(\"packet\", (msg) => {\n                if (failed)\n                    return;\n                if (\"pong\" === msg.type && \"probe\" === msg.data) {\n                    this.upgrading = true;\n                    this.emitReserved(\"upgrading\", transport);\n                    if (!transport)\n                        return;\n                    Socket.priorWebsocketSuccess = \"websocket\" === transport.name;\n                    this.transport.pause(() => {\n                        if (failed)\n                            return;\n                        if (\"closed\" === this.readyState)\n                            return;\n                        cleanup();\n                        this.setTransport(transport);\n                        transport.send([{ type: \"upgrade\" }]);\n                        this.emitReserved(\"upgrade\", transport);\n                        transport = null;\n                        this.upgrading = false;\n                        this.flush();\n                    });\n                }\n                else {\n                    const err = new Error(\"probe error\");\n                    // @ts-ignore\n                    err.transport = transport.name;\n                    this.emitReserved(\"upgradeError\", err);\n                }\n            });\n        };\n        function freezeTransport() {\n            if (failed)\n                return;\n            // Any callback called by transport should be ignored since now\n            failed = true;\n            cleanup();\n            transport.close();\n            transport = null;\n        }\n        // Handle any error that happens while probing\n        const onerror = (err) => {\n            const error = new Error(\"probe error: \" + err);\n            // @ts-ignore\n            error.transport = transport.name;\n            freezeTransport();\n            this.emitReserved(\"upgradeError\", error);\n        };\n        function onTransportClose() {\n            onerror(\"transport closed\");\n        }\n        // When the socket is closed while we're probing\n        function onclose() {\n            onerror(\"socket closed\");\n        }\n        // When the socket is upgraded while we're probing\n        function onupgrade(to) {\n            if (transport && to.name !== transport.name) {\n                freezeTransport();\n            }\n        }\n        // Remove all listeners on the transport and on self\n        const cleanup = () => {\n            transport.removeListener(\"open\", onTransportOpen);\n            transport.removeListener(\"error\", onerror);\n            transport.removeListener(\"close\", onTransportClose);\n            this.off(\"close\", onclose);\n            this.off(\"upgrading\", onupgrade);\n        };\n        transport.once(\"open\", onTransportOpen);\n        transport.once(\"error\", onerror);\n        transport.once(\"close\", onTransportClose);\n        this.once(\"close\", onclose);\n        this.once(\"upgrading\", onupgrade);\n        if (this.upgrades.indexOf(\"webtransport\") !== -1 &&\n            name !== \"webtransport\") {\n            // favor WebTransport\n            this.setTimeoutFn(() => {\n                if (!failed) {\n                    transport.open();\n                }\n            }, 200);\n        }\n        else {\n            transport.open();\n        }\n    }\n    /**\n     * Called when connection is deemed open.\n     *\n     * @private\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        Socket.priorWebsocketSuccess = \"websocket\" === this.transport.name;\n        this.emitReserved(\"open\");\n        this.flush();\n        // we check for `readyState` in case an `open`\n        // listener already closed the socket\n        if (\"open\" === this.readyState && this.opts.upgrade) {\n            let i = 0;\n            const l = this.upgrades.length;\n            for (; i < l; i++) {\n                this.probe(this.upgrades[i]);\n            }\n        }\n    }\n    /**\n     * Handles a packet.\n     *\n     * @private\n     */\n    onPacket(packet) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            this.emitReserved(\"packet\", packet);\n            // Socket is live - any packet counts\n            this.emitReserved(\"heartbeat\");\n            this.resetPingTimeout();\n            switch (packet.type) {\n                case \"open\":\n                    this.onHandshake(JSON.parse(packet.data));\n                    break;\n                case \"ping\":\n                    this.sendPacket(\"pong\");\n                    this.emitReserved(\"ping\");\n                    this.emitReserved(\"pong\");\n                    break;\n                case \"error\":\n                    const err = new Error(\"server error\");\n                    // @ts-ignore\n                    err.code = packet.data;\n                    this.onError(err);\n                    break;\n                case \"message\":\n                    this.emitReserved(\"data\", packet.data);\n                    this.emitReserved(\"message\", packet.data);\n                    break;\n            }\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon handshake completion.\n     *\n     * @param {Object} data - handshake obj\n     * @private\n     */\n    onHandshake(data) {\n        this.emitReserved(\"handshake\", data);\n        this.id = data.sid;\n        this.transport.query.sid = data.sid;\n        this.upgrades = this.filterUpgrades(data.upgrades);\n        this.pingInterval = data.pingInterval;\n        this.pingTimeout = data.pingTimeout;\n        this.maxPayload = data.maxPayload;\n        this.onOpen();\n        // In case open handler closes socket\n        if (\"closed\" === this.readyState)\n            return;\n        this.resetPingTimeout();\n    }\n    /**\n     * Sets and resets ping timeout timer based on server pings.\n     *\n     * @private\n     */\n    resetPingTimeout() {\n        this.clearTimeoutFn(this.pingTimeoutTimer);\n        this.pingTimeoutTimer = this.setTimeoutFn(() => {\n            this.onClose(\"ping timeout\");\n        }, this.pingInterval + this.pingTimeout);\n        if (this.opts.autoUnref) {\n            this.pingTimeoutTimer.unref();\n        }\n    }\n    /**\n     * Called on `drain` event\n     *\n     * @private\n     */\n    onDrain() {\n        this.writeBuffer.splice(0, this.prevBufferLen);\n        // setting prevBufferLen = 0 is very important\n        // for example, when upgrading, upgrade packet is sent over,\n        // and a nonzero prevBufferLen could cause problems on `drain`\n        this.prevBufferLen = 0;\n        if (0 === this.writeBuffer.length) {\n            this.emitReserved(\"drain\");\n        }\n        else {\n            this.flush();\n        }\n    }\n    /**\n     * Flush write buffers.\n     *\n     * @private\n     */\n    flush() {\n        if (\"closed\" !== this.readyState &&\n            this.transport.writable &&\n            !this.upgrading &&\n            this.writeBuffer.length) {\n            const packets = this.getWritablePackets();\n            this.transport.send(packets);\n            // keep track of current length of writeBuffer\n            // splice writeBuffer and callbackBuffer on `drain`\n            this.prevBufferLen = packets.length;\n            this.emitReserved(\"flush\");\n        }\n    }\n    /**\n     * Ensure the encoded size of the writeBuffer is below the maxPayload value sent by the server (only for HTTP\n     * long-polling)\n     *\n     * @private\n     */\n    getWritablePackets() {\n        const shouldCheckPayloadSize = this.maxPayload &&\n            this.transport.name === \"polling\" &&\n            this.writeBuffer.length > 1;\n        if (!shouldCheckPayloadSize) {\n            return this.writeBuffer;\n        }\n        let payloadSize = 1; // first packet type\n        for (let i = 0; i < this.writeBuffer.length; i++) {\n            const data = this.writeBuffer[i].data;\n            if (data) {\n                payloadSize += byteLength(data);\n            }\n            if (i > 0 && payloadSize > this.maxPayload) {\n                return this.writeBuffer.slice(0, i);\n            }\n            payloadSize += 2; // separator + packet type\n        }\n        return this.writeBuffer;\n    }\n    /**\n     * Sends a message.\n     *\n     * @param {String} msg - message.\n     * @param {Object} options.\n     * @param {Function} callback function.\n     * @return {Socket} for chaining.\n     */\n    write(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    send(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param {String} type: packet type.\n     * @param {String} data.\n     * @param {Object} options.\n     * @param {Function} fn - callback function.\n     * @private\n     */\n    sendPacket(type, data, options, fn) {\n        if (\"function\" === typeof data) {\n            fn = data;\n            data = undefined;\n        }\n        if (\"function\" === typeof options) {\n            fn = options;\n            options = null;\n        }\n        if (\"closing\" === this.readyState || \"closed\" === this.readyState) {\n            return;\n        }\n        options = options || {};\n        options.compress = false !== options.compress;\n        const packet = {\n            type: type,\n            data: data,\n            options: options,\n        };\n        this.emitReserved(\"packetCreate\", packet);\n        this.writeBuffer.push(packet);\n        if (fn)\n            this.once(\"flush\", fn);\n        this.flush();\n    }\n    /**\n     * Closes the connection.\n     */\n    close() {\n        const close = () => {\n            this.onClose(\"forced close\");\n            this.transport.close();\n        };\n        const cleanupAndClose = () => {\n            this.off(\"upgrade\", cleanupAndClose);\n            this.off(\"upgradeError\", cleanupAndClose);\n            close();\n        };\n        const waitForUpgrade = () => {\n            // wait for upgrade to finish since we can't send packets while pausing a transport\n            this.once(\"upgrade\", cleanupAndClose);\n            this.once(\"upgradeError\", cleanupAndClose);\n        };\n        if (\"opening\" === this.readyState || \"open\" === this.readyState) {\n            this.readyState = \"closing\";\n            if (this.writeBuffer.length) {\n                this.once(\"drain\", () => {\n                    if (this.upgrading) {\n                        waitForUpgrade();\n                    }\n                    else {\n                        close();\n                    }\n                });\n            }\n            else if (this.upgrading) {\n                waitForUpgrade();\n            }\n            else {\n                close();\n            }\n        }\n        return this;\n    }\n    /**\n     * Called upon transport error\n     *\n     * @private\n     */\n    onError(err) {\n        Socket.priorWebsocketSuccess = false;\n        this.emitReserved(\"error\", err);\n        this.onClose(\"transport error\", err);\n    }\n    /**\n     * Called upon transport close.\n     *\n     * @private\n     */\n    onClose(reason, description) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            // clear timers\n            this.clearTimeoutFn(this.pingTimeoutTimer);\n            // stop event from firing again for transport\n            this.transport.removeAllListeners(\"close\");\n            // ensure transport won't stay open\n            this.transport.close();\n            // ignore further transport communication\n            this.transport.removeAllListeners();\n            if (typeof removeEventListener === \"function\") {\n                removeEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n                removeEventListener(\"offline\", this.offlineEventListener, false);\n            }\n            // set ready state\n            this.readyState = \"closed\";\n            // clear session id\n            this.id = null;\n            // emit close event\n            this.emitReserved(\"close\", reason, description);\n            // clean buffers after, so users can still\n            // grab the buffers on `close` event\n            this.writeBuffer = [];\n            this.prevBufferLen = 0;\n        }\n    }\n    /**\n     * Filters upgrades, returning only those matching client transports.\n     *\n     * @param {Array} upgrades - server upgrades\n     * @private\n     */\n    filterUpgrades(upgrades) {\n        const filteredUpgrades = [];\n        let i = 0;\n        const j = upgrades.length;\n        for (; i < j; i++) {\n            if (~this.transports.indexOf(upgrades[i]))\n                filteredUpgrades.push(upgrades[i]);\n        }\n        return filteredUpgrades;\n    }\n}\nSocket.protocol = protocol;\n", "import { Socket } from \"./socket.js\";\nexport { Socket };\nexport const protocol = Socket.protocol;\nexport { Transport, TransportError } from \"./transport.js\";\nexport { transports } from \"./transports/index.js\";\nexport { installTimerFunctions } from \"./util.js\";\nexport { parse } from \"./contrib/parseuri.js\";\nexport { nextTick } from \"./transports/websocket-constructor.js\";\n", "import { parse } from \"engine.io-client\";\n/**\n * URL parser.\n *\n * @param uri - url\n * @param path - the request path of the connection\n * @param loc - An object meant to mimic window.location.\n *        Defaults to window.location.\n * @public\n */\nexport function url(uri, path = \"\", loc) {\n    let obj = uri;\n    // default to window.location\n    loc = loc || (typeof location !== \"undefined\" && location);\n    if (null == uri)\n        uri = loc.protocol + \"//\" + loc.host;\n    // relative path support\n    if (typeof uri === \"string\") {\n        if (\"/\" === uri.charAt(0)) {\n            if (\"/\" === uri.charAt(1)) {\n                uri = loc.protocol + uri;\n            }\n            else {\n                uri = loc.host + uri;\n            }\n        }\n        if (!/^(https?|wss?):\\/\\//.test(uri)) {\n            if (\"undefined\" !== typeof loc) {\n                uri = loc.protocol + \"//\" + uri;\n            }\n            else {\n                uri = \"https://\" + uri;\n            }\n        }\n        // parse\n        obj = parse(uri);\n    }\n    // make sure we treat `localhost:80` and `localhost` equally\n    if (!obj.port) {\n        if (/^(http|ws)$/.test(obj.protocol)) {\n            obj.port = \"80\";\n        }\n        else if (/^(http|ws)s$/.test(obj.protocol)) {\n            obj.port = \"443\";\n        }\n    }\n    obj.path = obj.path || \"/\";\n    const ipv6 = obj.host.indexOf(\":\") !== -1;\n    const host = ipv6 ? \"[\" + obj.host + \"]\" : obj.host;\n    // define unique id\n    obj.id = obj.protocol + \"://\" + host + \":\" + obj.port + path;\n    // define href\n    obj.href =\n        obj.protocol +\n            \"://\" +\n            host +\n            (loc && loc.port === obj.port ? \"\" : \":\" + obj.port);\n    return obj;\n}\n", "import { Emitter } from \"@socket.io/component-emitter\";\nimport { deconstructPacket, reconstructPacket } from \"./binary.js\";\nimport { isBinary, hasBinary } from \"./is-binary.js\";\n/**\n * These strings must not be used as event names, as they have a special meaning.\n */\nconst RESERVED_EVENTS = [\n    \"connect\",\n    \"connect_error\",\n    \"disconnect\",\n    \"disconnecting\",\n    \"newListener\",\n    \"removeListener\", // used by the Node.js EventEmitter\n];\n/**\n * Protocol version.\n *\n * @public\n */\nexport const protocol = 5;\nexport var PacketType;\n(function (PacketType) {\n    PacketType[PacketType[\"CONNECT\"] = 0] = \"CONNECT\";\n    PacketType[PacketType[\"DISCONNECT\"] = 1] = \"DISCONNECT\";\n    PacketType[PacketType[\"EVENT\"] = 2] = \"EVENT\";\n    PacketType[PacketType[\"ACK\"] = 3] = \"ACK\";\n    PacketType[PacketType[\"CONNECT_ERROR\"] = 4] = \"CONNECT_ERROR\";\n    PacketType[PacketType[\"BINARY_EVENT\"] = 5] = \"BINARY_EVENT\";\n    PacketType[PacketType[\"BINARY_ACK\"] = 6] = \"BINARY_ACK\";\n})(PacketType || (PacketType = {}));\n/**\n * A socket.io Encoder instance\n */\nexport class Encoder {\n    /**\n     * Encoder constructor\n     *\n     * @param {function} replacer - custom replacer to pass down to JSON.parse\n     */\n    constructor(replacer) {\n        this.replacer = replacer;\n    }\n    /**\n     * Encode a packet as a single string if non-binary, or as a\n     * buffer sequence, depending on packet type.\n     *\n     * @param {Object} obj - packet object\n     */\n    encode(obj) {\n        if (obj.type === PacketType.EVENT || obj.type === PacketType.ACK) {\n            if (hasBinary(obj)) {\n                return this.encodeAsBinary({\n                    type: obj.type === PacketType.EVENT\n                        ? PacketType.BINARY_EVENT\n                        : PacketType.BINARY_ACK,\n                    nsp: obj.nsp,\n                    data: obj.data,\n                    id: obj.id,\n                });\n            }\n        }\n        return [this.encodeAsString(obj)];\n    }\n    /**\n     * Encode packet as string.\n     */\n    encodeAsString(obj) {\n        // first is type\n        let str = \"\" + obj.type;\n        // attachments if we have them\n        if (obj.type === PacketType.BINARY_EVENT ||\n            obj.type === PacketType.BINARY_ACK) {\n            str += obj.attachments + \"-\";\n        }\n        // if we have a namespace other than `/`\n        // we append it followed by a comma `,`\n        if (obj.nsp && \"/\" !== obj.nsp) {\n            str += obj.nsp + \",\";\n        }\n        // immediately followed by the id\n        if (null != obj.id) {\n            str += obj.id;\n        }\n        // json data\n        if (null != obj.data) {\n            str += JSON.stringify(obj.data, this.replacer);\n        }\n        return str;\n    }\n    /**\n     * Encode packet as 'buffer sequence' by removing blobs, and\n     * deconstructing packet into object with placeholders and\n     * a list of buffers.\n     */\n    encodeAsBinary(obj) {\n        const deconstruction = deconstructPacket(obj);\n        const pack = this.encodeAsString(deconstruction.packet);\n        const buffers = deconstruction.buffers;\n        buffers.unshift(pack); // add packet info to beginning of data list\n        return buffers; // write all the buffers\n    }\n}\n// see https://stackoverflow.com/questions/8511281/check-if-a-value-is-an-object-in-javascript\nfunction isObject(value) {\n    return Object.prototype.toString.call(value) === \"[object Object]\";\n}\n/**\n * A socket.io Decoder instance\n *\n * @return {Object} decoder\n */\nexport class Decoder extends Emitter {\n    /**\n     * Decoder constructor\n     *\n     * @param {function} reviver - custom reviver to pass down to JSON.stringify\n     */\n    constructor(reviver) {\n        super();\n        this.reviver = reviver;\n    }\n    /**\n     * Decodes an encoded packet string into packet JSON.\n     *\n     * @param {String} obj - encoded packet\n     */\n    add(obj) {\n        let packet;\n        if (typeof obj === \"string\") {\n            if (this.reconstructor) {\n                throw new Error(\"got plaintext data when reconstructing a packet\");\n            }\n            packet = this.decodeString(obj);\n            const isBinaryEvent = packet.type === PacketType.BINARY_EVENT;\n            if (isBinaryEvent || packet.type === PacketType.BINARY_ACK) {\n                packet.type = isBinaryEvent ? PacketType.EVENT : PacketType.ACK;\n                // binary packet's json\n                this.reconstructor = new BinaryReconstructor(packet);\n                // no attachments, labeled binary but no binary data to follow\n                if (packet.attachments === 0) {\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n            else {\n                // non-binary full packet\n                super.emitReserved(\"decoded\", packet);\n            }\n        }\n        else if (isBinary(obj) || obj.base64) {\n            // raw binary data\n            if (!this.reconstructor) {\n                throw new Error(\"got binary data when not reconstructing a packet\");\n            }\n            else {\n                packet = this.reconstructor.takeBinaryData(obj);\n                if (packet) {\n                    // received final buffer\n                    this.reconstructor = null;\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n        }\n        else {\n            throw new Error(\"Unknown type: \" + obj);\n        }\n    }\n    /**\n     * Decode a packet String (JSON data)\n     *\n     * @param {String} str\n     * @return {Object} packet\n     */\n    decodeString(str) {\n        let i = 0;\n        // look up type\n        const p = {\n            type: Number(str.charAt(0)),\n        };\n        if (PacketType[p.type] === undefined) {\n            throw new Error(\"unknown packet type \" + p.type);\n        }\n        // look up attachments if type binary\n        if (p.type === PacketType.BINARY_EVENT ||\n            p.type === PacketType.BINARY_ACK) {\n            const start = i + 1;\n            while (str.charAt(++i) !== \"-\" && i != str.length) { }\n            const buf = str.substring(start, i);\n            if (buf != Number(buf) || str.charAt(i) !== \"-\") {\n                throw new Error(\"Illegal attachments\");\n            }\n            p.attachments = Number(buf);\n        }\n        // look up namespace (if any)\n        if (\"/\" === str.charAt(i + 1)) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (\",\" === c)\n                    break;\n                if (i === str.length)\n                    break;\n            }\n            p.nsp = str.substring(start, i);\n        }\n        else {\n            p.nsp = \"/\";\n        }\n        // look up id\n        const next = str.charAt(i + 1);\n        if (\"\" !== next && Number(next) == next) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (null == c || Number(c) != c) {\n                    --i;\n                    break;\n                }\n                if (i === str.length)\n                    break;\n            }\n            p.id = Number(str.substring(start, i + 1));\n        }\n        // look up json data\n        if (str.charAt(++i)) {\n            const payload = this.tryParse(str.substr(i));\n            if (Decoder.isPayloadValid(p.type, payload)) {\n                p.data = payload;\n            }\n            else {\n                throw new Error(\"invalid payload\");\n            }\n        }\n        return p;\n    }\n    tryParse(str) {\n        try {\n            return JSON.parse(str, this.reviver);\n        }\n        catch (e) {\n            return false;\n        }\n    }\n    static isPayloadValid(type, payload) {\n        switch (type) {\n            case PacketType.CONNECT:\n                return isObject(payload);\n            case PacketType.DISCONNECT:\n                return payload === undefined;\n            case PacketType.CONNECT_ERROR:\n                return typeof payload === \"string\" || isObject(payload);\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                return (Array.isArray(payload) &&\n                    (typeof payload[0] === \"number\" ||\n                        (typeof payload[0] === \"string\" &&\n                            RESERVED_EVENTS.indexOf(payload[0]) === -1)));\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                return Array.isArray(payload);\n        }\n    }\n    /**\n     * Deallocates a parser's resources\n     */\n    destroy() {\n        if (this.reconstructor) {\n            this.reconstructor.finishedReconstruction();\n            this.reconstructor = null;\n        }\n    }\n}\n/**\n * A manager of a binary event's 'buffer sequence'. Should\n * be constructed whenever a packet of type BINARY_EVENT is\n * decoded.\n *\n * @param {Object} packet\n * @return {BinaryReconstructor} initialized reconstructor\n */\nclass BinaryReconstructor {\n    constructor(packet) {\n        this.packet = packet;\n        this.buffers = [];\n        this.reconPack = packet;\n    }\n    /**\n     * Method to be called when binary data received from connection\n     * after a BINARY_EVENT packet.\n     *\n     * @param {Buffer | ArrayBuffer} binData - the raw binary data received\n     * @return {null | Object} returns null if more binary data is expected or\n     *   a reconstructed packet object if all buffers have been received.\n     */\n    takeBinaryData(binData) {\n        this.buffers.push(binData);\n        if (this.buffers.length === this.reconPack.attachments) {\n            // done with buffer list\n            const packet = reconstructPacket(this.reconPack, this.buffers);\n            this.finishedReconstruction();\n            return packet;\n        }\n        return null;\n    }\n    /**\n     * Cleans up binary packet reconstruction variables.\n     */\n    finishedReconstruction() {\n        this.reconPack = null;\n        this.buffers = [];\n    }\n}\n", "const withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nconst isView = (obj) => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj.buffer instanceof ArrayBuffer;\n};\nconst toString = Object.prototype.toString;\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeFile = typeof File === \"function\" ||\n    (typeof File !== \"undefined\" &&\n        toString.call(File) === \"[object FileConstructor]\");\n/**\n * Returns true if obj is a Buffer, an ArrayBuffer, a Blob or a File.\n *\n * @private\n */\nexport function isBinary(obj) {\n    return ((withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj))) ||\n        (withNativeBlob && obj instanceof Blob) ||\n        (withNativeFile && obj instanceof File));\n}\nexport function hasBinary(obj, toJSON) {\n    if (!obj || typeof obj !== \"object\") {\n        return false;\n    }\n    if (Array.isArray(obj)) {\n        for (let i = 0, l = obj.length; i < l; i++) {\n            if (hasBinary(obj[i])) {\n                return true;\n            }\n        }\n        return false;\n    }\n    if (isBinary(obj)) {\n        return true;\n    }\n    if (obj.toJSON &&\n        typeof obj.toJSON === \"function\" &&\n        arguments.length === 1) {\n        return hasBinary(obj.toJSON(), true);\n    }\n    for (const key in obj) {\n        if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {\n            return true;\n        }\n    }\n    return false;\n}\n", "import { isBinary } from \"./is-binary.js\";\n/**\n * Replaces every Buffer | ArrayBuffer | Blob | File in packet with a numbered placeholder.\n *\n * @param {Object} packet - socket.io event packet\n * @return {Object} with deconstructed packet and list of buffers\n * @public\n */\nexport function deconstructPacket(packet) {\n    const buffers = [];\n    const packetData = packet.data;\n    const pack = packet;\n    pack.data = _deconstructPacket(packetData, buffers);\n    pack.attachments = buffers.length; // number of binary 'attachments'\n    return { packet: pack, buffers: buffers };\n}\nfunction _deconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (isBinary(data)) {\n        const placeholder = { _placeholder: true, num: buffers.length };\n        buffers.push(data);\n        return placeholder;\n    }\n    else if (Array.isArray(data)) {\n        const newData = new Array(data.length);\n        for (let i = 0; i < data.length; i++) {\n            newData[i] = _deconstructPacket(data[i], buffers);\n        }\n        return newData;\n    }\n    else if (typeof data === \"object\" && !(data instanceof Date)) {\n        const newData = {};\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                newData[key] = _deconstructPacket(data[key], buffers);\n            }\n        }\n        return newData;\n    }\n    return data;\n}\n/**\n * Reconstructs a binary packet from its placeholder packet and buffers\n *\n * @param {Object} packet - event packet with placeholders\n * @param {Array} buffers - binary buffers to put in placeholder positions\n * @return {Object} reconstructed packet\n * @public\n */\nexport function reconstructPacket(packet, buffers) {\n    packet.data = _reconstructPacket(packet.data, buffers);\n    delete packet.attachments; // no longer useful\n    return packet;\n}\nfunction _reconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (data && data._placeholder === true) {\n        const isIndexValid = typeof data.num === \"number\" &&\n            data.num >= 0 &&\n            data.num < buffers.length;\n        if (isIndexValid) {\n            return buffers[data.num]; // appropriate buffer (should be natural order anyway)\n        }\n        else {\n            throw new Error(\"illegal attachments\");\n        }\n    }\n    else if (Array.isArray(data)) {\n        for (let i = 0; i < data.length; i++) {\n            data[i] = _reconstructPacket(data[i], buffers);\n        }\n    }\n    else if (typeof data === \"object\") {\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                data[key] = _reconstructPacket(data[key], buffers);\n            }\n        }\n    }\n    return data;\n}\n", "export function on(obj, ev, fn) {\n    obj.on(ev, fn);\n    return function subDestroy() {\n        obj.off(ev, fn);\n    };\n}\n", "import { PacketType } from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\n/**\n * Internal events.\n * These events can't be emitted by the user.\n */\nconst RESERVED_EVENTS = Object.freeze({\n    connect: 1,\n    connect_error: 1,\n    disconnect: 1,\n    disconnecting: 1,\n    // EventEmitter reserved events: https://nodejs.org/api/events.html#events_event_newlistener\n    newListener: 1,\n    removeListener: 1,\n});\n/**\n * A Socket is the fundamental class for interacting with the server.\n *\n * A Socket belongs to a certain Namespace (by default /) and uses an underlying {@link Manager} to communicate.\n *\n * @example\n * const socket = io();\n *\n * socket.on(\"connect\", () => {\n *   console.log(\"connected\");\n * });\n *\n * // send an event to the server\n * socket.emit(\"foo\", \"bar\");\n *\n * socket.on(\"foobar\", () => {\n *   // an event was received from the server\n * });\n *\n * // upon disconnection\n * socket.on(\"disconnect\", (reason) => {\n *   console.log(`disconnected due to ${reason}`);\n * });\n */\nexport class Socket extends Emitter {\n    /**\n     * `Socket` constructor.\n     */\n    constructor(io, nsp, opts) {\n        super();\n        /**\n         * Whether the socket is currently connected to the server.\n         *\n         * @example\n         * const socket = io();\n         *\n         * socket.on(\"connect\", () => {\n         *   console.log(socket.connected); // true\n         * });\n         *\n         * socket.on(\"disconnect\", () => {\n         *   console.log(socket.connected); // false\n         * });\n         */\n        this.connected = false;\n        /**\n         * Whether the connection state was recovered after a temporary disconnection. In that case, any missed packets will\n         * be transmitted by the server.\n         */\n        this.recovered = false;\n        /**\n         * Buffer for packets received before the CONNECT packet\n         */\n        this.receiveBuffer = [];\n        /**\n         * Buffer for packets that will be sent once the socket is connected\n         */\n        this.sendBuffer = [];\n        /**\n         * The queue of packets to be sent with retry in case of failure.\n         *\n         * Packets are sent one by one, each waiting for the server acknowledgement, in order to guarantee the delivery order.\n         * @private\n         */\n        this._queue = [];\n        /**\n         * A sequence to generate the ID of the {@link QueuedPacket}.\n         * @private\n         */\n        this._queueSeq = 0;\n        this.ids = 0;\n        this.acks = {};\n        this.flags = {};\n        this.io = io;\n        this.nsp = nsp;\n        if (opts && opts.auth) {\n            this.auth = opts.auth;\n        }\n        this._opts = Object.assign({}, opts);\n        if (this.io._autoConnect)\n            this.open();\n    }\n    /**\n     * Whether the socket is currently disconnected\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"connect\", () => {\n     *   console.log(socket.disconnected); // false\n     * });\n     *\n     * socket.on(\"disconnect\", () => {\n     *   console.log(socket.disconnected); // true\n     * });\n     */\n    get disconnected() {\n        return !this.connected;\n    }\n    /**\n     * Subscribe to open, close and packet events\n     *\n     * @private\n     */\n    subEvents() {\n        if (this.subs)\n            return;\n        const io = this.io;\n        this.subs = [\n            on(io, \"open\", this.onopen.bind(this)),\n            on(io, \"packet\", this.onpacket.bind(this)),\n            on(io, \"error\", this.onerror.bind(this)),\n            on(io, \"close\", this.onclose.bind(this)),\n        ];\n    }\n    /**\n     * Whether the Socket will try to reconnect when its Manager connects or reconnects.\n     *\n     * @example\n     * const socket = io();\n     *\n     * console.log(socket.active); // true\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   if (reason === \"io server disconnect\") {\n     *     // the disconnection was initiated by the server, you need to manually reconnect\n     *     console.log(socket.active); // false\n     *   }\n     *   // else the socket will automatically try to reconnect\n     *   console.log(socket.active); // true\n     * });\n     */\n    get active() {\n        return !!this.subs;\n    }\n    /**\n     * \"Opens\" the socket.\n     *\n     * @example\n     * const socket = io({\n     *   autoConnect: false\n     * });\n     *\n     * socket.connect();\n     */\n    connect() {\n        if (this.connected)\n            return this;\n        this.subEvents();\n        if (!this.io[\"_reconnecting\"])\n            this.io.open(); // ensure open\n        if (\"open\" === this.io._readyState)\n            this.onopen();\n        return this;\n    }\n    /**\n     * Alias for {@link connect()}.\n     */\n    open() {\n        return this.connect();\n    }\n    /**\n     * Sends a `message` event.\n     *\n     * This method mimics the WebSocket.send() method.\n     *\n     * @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send\n     *\n     * @example\n     * socket.send(\"hello\");\n     *\n     * // this is equivalent to\n     * socket.emit(\"message\", \"hello\");\n     *\n     * @return self\n     */\n    send(...args) {\n        args.unshift(\"message\");\n        this.emit.apply(this, args);\n        return this;\n    }\n    /**\n     * Override `emit`.\n     * If the event is in `events`, it's emitted normally.\n     *\n     * @example\n     * socket.emit(\"hello\", \"world\");\n     *\n     * // all serializable datastructures are supported (no need to call JSON.stringify)\n     * socket.emit(\"hello\", 1, \"2\", { 3: [\"4\"], 5: Uint8Array.from([6]) });\n     *\n     * // with an acknowledgement from the server\n     * socket.emit(\"hello\", \"world\", (val) => {\n     *   // ...\n     * });\n     *\n     * @return self\n     */\n    emit(ev, ...args) {\n        if (RESERVED_EVENTS.hasOwnProperty(ev)) {\n            throw new Error('\"' + ev.toString() + '\" is a reserved event name');\n        }\n        args.unshift(ev);\n        if (this._opts.retries && !this.flags.fromQueue && !this.flags.volatile) {\n            this._addToQueue(args);\n            return this;\n        }\n        const packet = {\n            type: PacketType.EVENT,\n            data: args,\n        };\n        packet.options = {};\n        packet.options.compress = this.flags.compress !== false;\n        // event ack callback\n        if (\"function\" === typeof args[args.length - 1]) {\n            const id = this.ids++;\n            const ack = args.pop();\n            this._registerAckCallback(id, ack);\n            packet.id = id;\n        }\n        const isTransportWritable = this.io.engine &&\n            this.io.engine.transport &&\n            this.io.engine.transport.writable;\n        const discardPacket = this.flags.volatile && (!isTransportWritable || !this.connected);\n        if (discardPacket) {\n        }\n        else if (this.connected) {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        }\n        else {\n            this.sendBuffer.push(packet);\n        }\n        this.flags = {};\n        return this;\n    }\n    /**\n     * @private\n     */\n    _registerAckCallback(id, ack) {\n        var _a;\n        const timeout = (_a = this.flags.timeout) !== null && _a !== void 0 ? _a : this._opts.ackTimeout;\n        if (timeout === undefined) {\n            this.acks[id] = ack;\n            return;\n        }\n        // @ts-ignore\n        const timer = this.io.setTimeoutFn(() => {\n            delete this.acks[id];\n            for (let i = 0; i < this.sendBuffer.length; i++) {\n                if (this.sendBuffer[i].id === id) {\n                    this.sendBuffer.splice(i, 1);\n                }\n            }\n            ack.call(this, new Error(\"operation has timed out\"));\n        }, timeout);\n        this.acks[id] = (...args) => {\n            // @ts-ignore\n            this.io.clearTimeoutFn(timer);\n            ack.apply(this, [null, ...args]);\n        };\n    }\n    /**\n     * Emits an event and waits for an acknowledgement\n     *\n     * @example\n     * // without timeout\n     * const response = await socket.emitWithAck(\"hello\", \"world\");\n     *\n     * // with a specific timeout\n     * try {\n     *   const response = await socket.timeout(1000).emitWithAck(\"hello\", \"world\");\n     * } catch (err) {\n     *   // the server did not acknowledge the event in the given delay\n     * }\n     *\n     * @return a Promise that will be fulfilled when the server acknowledges the event\n     */\n    emitWithAck(ev, ...args) {\n        // the timeout flag is optional\n        const withErr = this.flags.timeout !== undefined || this._opts.ackTimeout !== undefined;\n        return new Promise((resolve, reject) => {\n            args.push((arg1, arg2) => {\n                if (withErr) {\n                    return arg1 ? reject(arg1) : resolve(arg2);\n                }\n                else {\n                    return resolve(arg1);\n                }\n            });\n            this.emit(ev, ...args);\n        });\n    }\n    /**\n     * Add the packet to the queue.\n     * @param args\n     * @private\n     */\n    _addToQueue(args) {\n        let ack;\n        if (typeof args[args.length - 1] === \"function\") {\n            ack = args.pop();\n        }\n        const packet = {\n            id: this._queueSeq++,\n            tryCount: 0,\n            pending: false,\n            args,\n            flags: Object.assign({ fromQueue: true }, this.flags),\n        };\n        args.push((err, ...responseArgs) => {\n            if (packet !== this._queue[0]) {\n                // the packet has already been acknowledged\n                return;\n            }\n            const hasError = err !== null;\n            if (hasError) {\n                if (packet.tryCount > this._opts.retries) {\n                    this._queue.shift();\n                    if (ack) {\n                        ack(err);\n                    }\n                }\n            }\n            else {\n                this._queue.shift();\n                if (ack) {\n                    ack(null, ...responseArgs);\n                }\n            }\n            packet.pending = false;\n            return this._drainQueue();\n        });\n        this._queue.push(packet);\n        this._drainQueue();\n    }\n    /**\n     * Send the first packet of the queue, and wait for an acknowledgement from the server.\n     * @param force - whether to resend a packet that has not been acknowledged yet\n     *\n     * @private\n     */\n    _drainQueue(force = false) {\n        if (!this.connected || this._queue.length === 0) {\n            return;\n        }\n        const packet = this._queue[0];\n        if (packet.pending && !force) {\n            return;\n        }\n        packet.pending = true;\n        packet.tryCount++;\n        this.flags = packet.flags;\n        this.emit.apply(this, packet.args);\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param packet\n     * @private\n     */\n    packet(packet) {\n        packet.nsp = this.nsp;\n        this.io._packet(packet);\n    }\n    /**\n     * Called upon engine `open`.\n     *\n     * @private\n     */\n    onopen() {\n        if (typeof this.auth == \"function\") {\n            this.auth((data) => {\n                this._sendConnectPacket(data);\n            });\n        }\n        else {\n            this._sendConnectPacket(this.auth);\n        }\n    }\n    /**\n     * Sends a CONNECT packet to initiate the Socket.IO session.\n     *\n     * @param data\n     * @private\n     */\n    _sendConnectPacket(data) {\n        this.packet({\n            type: PacketType.CONNECT,\n            data: this._pid\n                ? Object.assign({ pid: this._pid, offset: this._lastOffset }, data)\n                : data,\n        });\n    }\n    /**\n     * Called upon engine or manager `error`.\n     *\n     * @param err\n     * @private\n     */\n    onerror(err) {\n        if (!this.connected) {\n            this.emitReserved(\"connect_error\", err);\n        }\n    }\n    /**\n     * Called upon engine `close`.\n     *\n     * @param reason\n     * @param description\n     * @private\n     */\n    onclose(reason, description) {\n        this.connected = false;\n        delete this.id;\n        this.emitReserved(\"disconnect\", reason, description);\n    }\n    /**\n     * Called with socket packet.\n     *\n     * @param packet\n     * @private\n     */\n    onpacket(packet) {\n        const sameNamespace = packet.nsp === this.nsp;\n        if (!sameNamespace)\n            return;\n        switch (packet.type) {\n            case PacketType.CONNECT:\n                if (packet.data && packet.data.sid) {\n                    this.onconnect(packet.data.sid, packet.data.pid);\n                }\n                else {\n                    this.emitReserved(\"connect_error\", new Error(\"It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)\"));\n                }\n                break;\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                this.onevent(packet);\n                break;\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                this.onack(packet);\n                break;\n            case PacketType.DISCONNECT:\n                this.ondisconnect();\n                break;\n            case PacketType.CONNECT_ERROR:\n                this.destroy();\n                const err = new Error(packet.data.message);\n                // @ts-ignore\n                err.data = packet.data.data;\n                this.emitReserved(\"connect_error\", err);\n                break;\n        }\n    }\n    /**\n     * Called upon a server event.\n     *\n     * @param packet\n     * @private\n     */\n    onevent(packet) {\n        const args = packet.data || [];\n        if (null != packet.id) {\n            args.push(this.ack(packet.id));\n        }\n        if (this.connected) {\n            this.emitEvent(args);\n        }\n        else {\n            this.receiveBuffer.push(Object.freeze(args));\n        }\n    }\n    emitEvent(args) {\n        if (this._anyListeners && this._anyListeners.length) {\n            const listeners = this._anyListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, args);\n            }\n        }\n        super.emit.apply(this, args);\n        if (this._pid && args.length && typeof args[args.length - 1] === \"string\") {\n            this._lastOffset = args[args.length - 1];\n        }\n    }\n    /**\n     * Produces an ack callback to emit with an event.\n     *\n     * @private\n     */\n    ack(id) {\n        const self = this;\n        let sent = false;\n        return function (...args) {\n            // prevent double callbacks\n            if (sent)\n                return;\n            sent = true;\n            self.packet({\n                type: PacketType.ACK,\n                id: id,\n                data: args,\n            });\n        };\n    }\n    /**\n     * Called upon a server acknowlegement.\n     *\n     * @param packet\n     * @private\n     */\n    onack(packet) {\n        const ack = this.acks[packet.id];\n        if (\"function\" === typeof ack) {\n            ack.apply(this, packet.data);\n            delete this.acks[packet.id];\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon server connect.\n     *\n     * @private\n     */\n    onconnect(id, pid) {\n        this.id = id;\n        this.recovered = pid && this._pid === pid;\n        this._pid = pid; // defined only if connection state recovery is enabled\n        this.connected = true;\n        this.emitBuffered();\n        this.emitReserved(\"connect\");\n        this._drainQueue(true);\n    }\n    /**\n     * Emit buffered events (received and emitted).\n     *\n     * @private\n     */\n    emitBuffered() {\n        this.receiveBuffer.forEach((args) => this.emitEvent(args));\n        this.receiveBuffer = [];\n        this.sendBuffer.forEach((packet) => {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        });\n        this.sendBuffer = [];\n    }\n    /**\n     * Called upon server disconnect.\n     *\n     * @private\n     */\n    ondisconnect() {\n        this.destroy();\n        this.onclose(\"io server disconnect\");\n    }\n    /**\n     * Called upon forced client/server side disconnections,\n     * this method ensures the manager stops tracking us and\n     * that reconnections don't get triggered for this.\n     *\n     * @private\n     */\n    destroy() {\n        if (this.subs) {\n            // clean subscriptions to avoid reconnections\n            this.subs.forEach((subDestroy) => subDestroy());\n            this.subs = undefined;\n        }\n        this.io[\"_destroy\"](this);\n    }\n    /**\n     * Disconnects the socket manually. In that case, the socket will not try to reconnect.\n     *\n     * If this is the last active Socket instance of the {@link Manager}, the low-level connection will be closed.\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   // console.log(reason); prints \"io client disconnect\"\n     * });\n     *\n     * socket.disconnect();\n     *\n     * @return self\n     */\n    disconnect() {\n        if (this.connected) {\n            this.packet({ type: PacketType.DISCONNECT });\n        }\n        // remove socket from pool\n        this.destroy();\n        if (this.connected) {\n            // fire events\n            this.onclose(\"io client disconnect\");\n        }\n        return this;\n    }\n    /**\n     * Alias for {@link disconnect()}.\n     *\n     * @return self\n     */\n    close() {\n        return this.disconnect();\n    }\n    /**\n     * Sets the compress flag.\n     *\n     * @example\n     * socket.compress(false).emit(\"hello\");\n     *\n     * @param compress - if `true`, compresses the sending data\n     * @return self\n     */\n    compress(compress) {\n        this.flags.compress = compress;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the event message will be dropped when this socket is not\n     * ready to send messages.\n     *\n     * @example\n     * socket.volatile.emit(\"hello\"); // the server may or may not receive it\n     *\n     * @returns self\n     */\n    get volatile() {\n        this.flags.volatile = true;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the callback will be called with an error when the\n     * given number of milliseconds have elapsed without an acknowledgement from the server:\n     *\n     * @example\n     * socket.timeout(5000).emit(\"my-event\", (err) => {\n     *   if (err) {\n     *     // the server did not acknowledge the event in the given delay\n     *   }\n     * });\n     *\n     * @returns self\n     */\n    timeout(timeout) {\n        this.flags.timeout = timeout;\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * @example\n     * socket.onAny((event, ...args) => {\n     *   console.log(`got ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * @example\n     * socket.prependAny((event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * }\n     *\n     * socket.onAny(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAny(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAny();\n     *\n     * @param listener\n     */\n    offAny(listener) {\n        if (!this._anyListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAny() {\n        return this._anyListeners || [];\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.onAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.prependAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * }\n     *\n     * socket.onAnyOutgoing(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAnyOutgoing(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAnyOutgoing();\n     *\n     * @param [listener] - the catch-all listener (optional)\n     */\n    offAnyOutgoing(listener) {\n        if (!this._anyOutgoingListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyOutgoingListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyOutgoingListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAnyOutgoing() {\n        return this._anyOutgoingListeners || [];\n    }\n    /**\n     * Notify the listeners for each packet sent\n     *\n     * @param packet\n     *\n     * @private\n     */\n    notifyOutgoingListeners(packet) {\n        if (this._anyOutgoingListeners && this._anyOutgoingListeners.length) {\n            const listeners = this._anyOutgoingListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, packet.data);\n            }\n        }\n    }\n}\n", "/**\n * Initialize backoff timer with `opts`.\n *\n * - `min` initial timeout in milliseconds [100]\n * - `max` max timeout [10000]\n * - `jitter` [0]\n * - `factor` [2]\n *\n * @param {Object} opts\n * @api public\n */\nexport function Backoff(opts) {\n    opts = opts || {};\n    this.ms = opts.min || 100;\n    this.max = opts.max || 10000;\n    this.factor = opts.factor || 2;\n    this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;\n    this.attempts = 0;\n}\n/**\n * Return the backoff duration.\n *\n * @return {Number}\n * @api public\n */\nBackoff.prototype.duration = function () {\n    var ms = this.ms * Math.pow(this.factor, this.attempts++);\n    if (this.jitter) {\n        var rand = Math.random();\n        var deviation = Math.floor(rand * this.jitter * ms);\n        ms = (Math.floor(rand * 10) & 1) == 0 ? ms - deviation : ms + deviation;\n    }\n    return Math.min(ms, this.max) | 0;\n};\n/**\n * Reset the number of attempts.\n *\n * @api public\n */\nBackoff.prototype.reset = function () {\n    this.attempts = 0;\n};\n/**\n * Set the minimum duration\n *\n * @api public\n */\nBackoff.prototype.setMin = function (min) {\n    this.ms = min;\n};\n/**\n * Set the maximum duration\n *\n * @api public\n */\nBackoff.prototype.setMax = function (max) {\n    this.max = max;\n};\n/**\n * Set the jitter\n *\n * @api public\n */\nBackoff.prototype.setJitter = function (jitter) {\n    this.jitter = jitter;\n};\n", "import { Socket as Engine, installTimerFunctions, nextTick, } from \"engine.io-client\";\nimport { Socket } from \"./socket.js\";\nimport * as parser from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Backoff } from \"./contrib/backo2.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\nexport class Manager extends Emitter {\n    constructor(uri, opts) {\n        var _a;\n        super();\n        this.nsps = {};\n        this.subs = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = undefined;\n        }\n        opts = opts || {};\n        opts.path = opts.path || \"/socket.io\";\n        this.opts = opts;\n        installTimerFunctions(this, opts);\n        this.reconnection(opts.reconnection !== false);\n        this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);\n        this.reconnectionDelay(opts.reconnectionDelay || 1000);\n        this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);\n        this.randomizationFactor((_a = opts.randomizationFactor) !== null && _a !== void 0 ? _a : 0.5);\n        this.backoff = new Backoff({\n            min: this.reconnectionDelay(),\n            max: this.reconnectionDelayMax(),\n            jitter: this.randomizationFactor(),\n        });\n        this.timeout(null == opts.timeout ? 20000 : opts.timeout);\n        this._readyState = \"closed\";\n        this.uri = uri;\n        const _parser = opts.parser || parser;\n        this.encoder = new _parser.Encoder();\n        this.decoder = new _parser.Decoder();\n        this._autoConnect = opts.autoConnect !== false;\n        if (this._autoConnect)\n            this.open();\n    }\n    reconnection(v) {\n        if (!arguments.length)\n            return this._reconnection;\n        this._reconnection = !!v;\n        return this;\n    }\n    reconnectionAttempts(v) {\n        if (v === undefined)\n            return this._reconnectionAttempts;\n        this._reconnectionAttempts = v;\n        return this;\n    }\n    reconnectionDelay(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelay;\n        this._reconnectionDelay = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMin(v);\n        return this;\n    }\n    randomizationFactor(v) {\n        var _a;\n        if (v === undefined)\n            return this._randomizationFactor;\n        this._randomizationFactor = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setJitter(v);\n        return this;\n    }\n    reconnectionDelayMax(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelayMax;\n        this._reconnectionDelayMax = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMax(v);\n        return this;\n    }\n    timeout(v) {\n        if (!arguments.length)\n            return this._timeout;\n        this._timeout = v;\n        return this;\n    }\n    /**\n     * Starts trying to reconnect if reconnection is enabled and we have not\n     * started reconnecting yet\n     *\n     * @private\n     */\n    maybeReconnectOnOpen() {\n        // Only try to reconnect if it's the first time we're connecting\n        if (!this._reconnecting &&\n            this._reconnection &&\n            this.backoff.attempts === 0) {\n            // keeps reconnection from firing twice for the same reconnection loop\n            this.reconnect();\n        }\n    }\n    /**\n     * Sets the current transport `socket`.\n     *\n     * @param {Function} fn - optional, callback\n     * @return self\n     * @public\n     */\n    open(fn) {\n        if (~this._readyState.indexOf(\"open\"))\n            return this;\n        this.engine = new Engine(this.uri, this.opts);\n        const socket = this.engine;\n        const self = this;\n        this._readyState = \"opening\";\n        this.skipReconnect = false;\n        // emit `open`\n        const openSubDestroy = on(socket, \"open\", function () {\n            self.onopen();\n            fn && fn();\n        });\n        const onError = (err) => {\n            this.cleanup();\n            this._readyState = \"closed\";\n            this.emitReserved(\"error\", err);\n            if (fn) {\n                fn(err);\n            }\n            else {\n                // Only do this if there is no fn to handle the error\n                this.maybeReconnectOnOpen();\n            }\n        };\n        // emit `error`\n        const errorSub = on(socket, \"error\", onError);\n        if (false !== this._timeout) {\n            const timeout = this._timeout;\n            // set timer\n            const timer = this.setTimeoutFn(() => {\n                openSubDestroy();\n                onError(new Error(\"timeout\"));\n                socket.close();\n   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on(this.decoder, \"decoded\", this.ondecoded.bind(this)));\n    }\n    /**\n     * Called upon a ping.\n     *\n     * @private\n     */\n    onping() {\n        this.emitReserved(\"ping\");\n    }\n    /**\n     * Called with data.\n     *\n     * @private\n     */\n    ondata(data) {\n        try {\n            this.decoder.add(data);\n        }\n        catch (e) {\n            this.onclose(\"parse error\", e);\n        }\n    }\n    /**\n     * Called when parser fully decodes a packet.\n     *\n     * @private\n     */\n    ondecoded(packet) {\n        // the nextTick call prevents an exception in a user-provided event listener from triggering a disconnection due to a \"parse error\"\n        nextTick(() => {\n            this.emitReserved(\"packet\", packet);\n        }, this.setTimeoutFn);\n    }\n    /**\n     * Called upon socket error.\n     *\n     * @private\n     */\n    onerror(err) {\n        this.emitReserved(\"error\", err);\n    }\n    /**\n     * Creates a new socket for the given `nsp`.\n     *\n     * @return {Socket}\n     * @public\n     */\n    socket(nsp, opts) {\n        let socket = this.nsps[nsp];\n        if (!socket) {\n            socket = new Socket(this, nsp, opts);\n            this.nsps[nsp] = socket;\n        }\n        else if (this._autoConnect && !socket.active) {\n            socket.connect();\n        }\n        return socket;\n    }\n    /**\n     * Called upon a socket close.\n     *\n     * @param socket\n     * @private\n     */\n    _destroy(socket) {\n        const nsps = Object.keys(this.nsps);\n        for (const nsp of nsps) {\n            const socket = this.nsps[nsp];\n            if (socket.active) {\n                return;\n            }\n        }\n        this._close();\n    }\n    /**\n     * Writes a packet.\n     *\n     * @param packet\n     * @private\n     */\n    _packet(packet) {\n        const encodedPackets = this.encoder.encode(packet);\n        for (let i = 0; i < encodedPackets.length; i++) {\n            this.engine.write(encodedPackets[i], packet.options);\n        }\n    }\n    /**\n     * Clean up transport subscriptions and packet buffer.\n     *\n     * @private\n     */\n    cleanup() {\n        this.subs.forEach((subDestroy) => subDestroy());\n        this.subs.length = 0;\n        this.decoder.destroy();\n    }\n    /**\n     * Close the current socket.\n     *\n     * @private\n     */\n    _close() {\n        this.skipReconnect = true;\n        this._reconnecting = false;\n        this.onclose(\"forced close\");\n        if (this.engine)\n            this.engine.close();\n    }\n    /**\n     * Alias for close()\n     *\n     * @private\n     */\n    disconnect() {\n        return this._close();\n    }\n    /**\n     * Called upon engine close.\n     *\n     * @private\n     */\n    onclose(reason, description) {\n        this.cleanup();\n        this.backoff.reset();\n        this._readyState = \"closed\";\n        this.emitReserved(\"close\", reason, description);\n        if (this._reconnection && !this.skipReconnect) {\n            this.reconnect();\n        }\n    }\n    /**\n     * Attempt a reconnection.\n     *\n     * @private\n     */\n    reconnect() {\n        if (this._reconnecting || this.skipReconnect)\n            return this;\n        const self = this;\n        if (this.backoff.attempts >= this._reconnectionAttempts) {\n            this.backoff.reset();\n            this.emitReserved(\"reconnect_failed\");\n            this._reconnecting = false;\n        }\n        else {\n            const delay = this.backoff.duration();\n            this._reconnecting = true;\n            const timer = this.setTimeoutFn(() => {\n                if (self.skipReconnect)\n                    return;\n                this.emitReserved(\"reconnect_attempt\", self.backoff.attempts);\n                // check again for the case socket closed in above events\n                if (self.skipReconnect)\n                    return;\n                self.open((err) => {\n                    if (err) {\n                        self._reconnecting = false;\n                        self.reconnect();\n                        this.emitReserved(\"reconnect_error\", err);\n                    }\n                    else {\n                        self.onreconnect();\n                    }\n                });\n            }, delay);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n    }\n    /**\n     * Called upon successful reconnect.\n     *\n     * @private\n     */\n    onreconnect() {\n        const attempt = this.backoff.attempts;\n        this._reconnecting = false;\n        this.backoff.reset();\n        this.emitReserved(\"reconnect\", attempt);\n    }\n}\n", "import { url } from \"./url.js\";\nimport { Manager } from \"./manager.js\";\nimport { Socket } from \"./socket.js\";\n/**\n * Managers cache.\n */\nconst cache = {};\nfunction lookup(uri, opts) {\n    if (typeof uri === \"object\") {\n        opts = uri;\n        uri = undefined;\n    }\n    opts = opts || {};\n    const parsed = url(uri, opts.path || \"/socket.io\");\n    const source = parsed.source;\n    const id = parsed.id;\n    const path = parsed.path;\n    const sameNamespace = cache[id] && path in cache[id][\"nsps\"];\n    const newConnection = opts.forceNew ||\n        opts[\"force new connection\"] ||\n        false === opts.multiplex ||\n        sameNamespace;\n    let io;\n    if (newConnection) {\n        io = new Manager(source, opts);\n    }\n    else {\n        if (!cache[id]) {\n            cache[id] = new Manager(source, opts);\n        }\n        io = cache[id];\n    }\n    if (parsed.query && !opts.query) {\n        opts.query = parsed.queryKey;\n    }\n    return io.socket(parsed.path, opts);\n}\n// so that \"lookup\" can be used both as a function (e.g. `io(...)`) and as a\n// namespace (e.g. `io.connect(...)`), for backward compatibility\nObject.assign(lookup, {\n    Manager,\n    Socket,\n    io: lookup,\n    connect: lookup,\n});\n/**\n * Protocol version.\n *\n * @public\n */\nexport { protocol } from \"socket.io-parser\";\n/**\n * Expose constructors for standalone build.\n *\n * @public\n */\nexport { Manager, Socket, lookup as io, lookup as connect, lookup as default, };\n"],
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+  "names": ["require_ui", "__commonJSMin", "exports", "module", "_a", "Ui", "win", "extLog", "jsonHighlight", "__publicField", "json", "msg", "el", "component", "mdText", "opts", "str", "lang", "md", "html", "url", "newScript", "newStyle", "textFn", "type", "ui", "content", "toaster", "toast", "evt", "config", "notify", "resolve", "reject", "ev", "permit", "response", "contentType", "data", "err", "comp", "attrib", "prop", "parentEl", "components", "ns", "compToAdd", "i", "newEl", "isRecurse", "elParent", "all", "compToRemove", "els", "compToReplace", "elToReplace", "compToUpd", "elToUpd", "__toESM", "__require", "script", "sheet", "node", "cssSelector", "thisOut", "listEntries", "bodyEntries", "headEntries", "cols", "v", "propName", "selection", "out", "p", "key", "uiOptions", "error", "slot", "txtReturn", "import_ui", "_UibVar", "__publicField", "attrib", "oldVal", "newVal", "val", "t", "UibVar", "PACKET_TYPES", "PACKET_TYPES_REVERSE", "key", "ERROR_PACKET", "withNativeBlob", "withNativeArrayBuffer", "isView", "obj", "encodePacket", "type", "data", "supportsBinary", "callback", "encodeBlobAsBase64", "PACKET_TYPES", "fileReader", "content", "toArray", "TEXT_ENCODER", "encodePacketToBinary", "packet", "encoded", "chars", "lookup", "i", "decode", "base64", "bufferLength", "len", "p", "encoded1", "encoded2", "encoded3", "encoded4", "arraybuffer", "bytes", "lookup", "withNativeArrayBuffer", "decodePacket", "encodedPacket", "binaryType", "mapBinary", "type", "decodeBase64Packet", "PACKET_TYPES_REVERSE", "ERROR_PACKET", "data", "decoded", "decode", "SEPARATOR", "encodePayload", "packets", "callback", "length", "encodedPackets", "count", "packet", "i", "encodePacket", "encodedPacket", "decodePayload", "encodedPayload", "binaryType", "decodedPacket", "decodePacket", "createPacketEncoderStream", "controller", "encodePacketToBinary", "payloadLength", "header", "view", "TEXT_DECODER", "totalLength", "chunks", "acc", "chunk", "concatChunks", "size", "buffer", "j", "createPacketDecoderStream", "maxPayload", "state", "expectedLength", "isBinary", "headerArray", "n", "ERROR_PACKET", "data", "protocol", "Emitter", "obj", "mixin", "key", "event", "fn", "on", "callbacks", "cb", "i", "args", "len", "globalThisShim", "pick", "obj", "attr", "acc", "k", "NATIVE_SET_TIMEOUT", "globalThisShim", "NATIVE_CLEAR_TIMEOUT", "installTimerFunctions", "opts", "BASE64_OVERHEAD", "byteLength", "utf8Length", "str", "c", "length", "l", "encode", "obj", "str", "i", "decode", "qs", "qry", "pairs", "l", "pair", "TransportError", "reason", "description", "context", "Transport", "Emitter", "opts", "installTimerFunctions", "packets", "data", "packet", "decodePacket", "details", "onPause", "schema", "query", "hostname", "encodedQuery", "encode", "alphabet", "length", "map", "seed", "i", "prev", "encode", "num", "encoded", "yeast", "now", "encode", "prev", "seed", "i", "length", "map", "alphabet", "value", "hasCORS", "XHR", "opts", "xdomain", "hasCORS", "globalThisShim", "empty", "hasXHR2", "XHR", "Polling", "Transport", "opts", "isSSL", "port", "forceBase64", "onPause", "pause", "total", "data", "callback", "packet", "decodePayload", "close", "packets", "encodePayload", "schema", "query", "yeast", "Request", "fn", "req", "xhrStatus", "context", "_Request", "Emitter", "uri", "installTimerFunctions", "_a", "pick", "xhr", "i", "e", "err", "fromError", "unloadHandler", "terminationEvent", "globalThisShim", "nextTick", "cb", "setTimeoutFn", "WebSocket", "globalThisShim", "usingBrowserWebSocket", "defaultBinaryType", "isReactNative", "WS", "Transport", "opts", "uri", "protocols", "pick", "usingBrowserWebSocket", "WebSocket", "err", "closeEvent", "ev", "packets", "i", "packet", "lastPacket", "encodePacket", "data", "nextTick", "schema", "query", "yeast", "WT", "Transport", "err", "stream", "decoderStream", "createPacketDecoderStream", "reader", "encoderStream", "createPacketEncoderStream", "read", "done", "value", "packet", "packets", "i", "lastPacket", "nextTick", "_a", "transports", "WS", "WT", "Polling", "re", "parts", "parse", "str", "src", "b", "e", "m", "uri", "i", "pathNames", "queryKey", "obj", "path", "regx", "names", "query", "data", "$0", "$1", "$2", "Socket", "_Socket", "Emitter", "uri", "opts", "defaultBinaryType", "parse", "installTimerFunctions", "decode", "name", "query", "protocol", "transports", "transport", "reason", "failed", "onTransportOpen", "msg", "cleanup", "err", "freezeTransport", "onerror", "error", "onTransportClose", "onclose", "onupgrade", "to", "i", "l", "packet", "data", "packets", "payloadSize", "byteLength", "options", "fn", "type", "close", "cleanupAndClose", "waitForUpgrade", "description", "upgrades", "filteredUpgrades", "j", "protocol", "Socket", "url", "uri", "path", "loc", "obj", "parse", "host", "esm_exports", "__export", "Decoder", "Encoder", "PacketType", "protocol", "withNativeArrayBuffer", "isView", "obj", "toString", "withNativeBlob", "withNativeFile", "isBinary", "hasBinary", "toJSON", "i", "l", "key", "deconstructPacket", "packet", "buffers", "packetData", "pack", "_deconstructPacket", "data", "isBinary", "placeholder", "newData", "key", "reconstructPacket", "_reconstructPacket", "i", "RESERVED_EVENTS", "protocol", "PacketType", "Encoder", "replacer", "obj", "hasBinary", "str", "deconstruction", "deconstructPacket", "pack", "buffers", "isObject", "value", "Decoder", "_Decoder", "Emitter", "reviver", "packet", "isBinaryEvent", "BinaryReconstructor", "isBinary", "i", "p", "start", "buf", "next", "c", "payload", "type", "binData", "reconstructPacket", "on", "obj", "ev", "fn", "RESERVED_EVENTS", "Socket", "Emitter", "io", "nsp", "opts", "on", "args", "ev", "packet", "PacketType", "id", "ack", "isTransportWritable", "_a", "timeout", "timer", "i", "withErr", "resolve", "reject", "arg1", "arg2", "err", "responseArgs", "force", "data", "reason", "description", "listeners", "listener", "self", "sent", "pid", "subDestroy", "compress", "Backoff", "opts", "ms", "rand", "deviation", "min", "max", "jitter", "Manager", "Emitter", "uri", "opts", "_a", "installTimerFunctions", "Backoff", "_parser", "esm_exports", "v", "fn", "Socket", "socket", "self", "openSubDestroy", "on", "onError", "err", "errorSub", "timeout", "timer", "data", "e", "packet", "nextTick", "nsp", "nsps", "encodedPackets", "subDestroy", "reason", "description", "delay", "attempt", "cache", "lookup", "uri", "opts", "parsed", "url", "source", "id", "path", "sameNamespace", "newConnection", "io", "Manager", "Socket", "version", "isMinified", "param", "logLevel", "LOG_STYLES", "log", "args", "level", "strLevel", "head", "makeMeAnObject", "thing", "property", "out", "urlJoin", "e", "syntaxHighlight", "json", "match", "cls", "_ui", "Ui", "_a", "_pingInterval", "_propChangeCallbacks", "_msgRecvdByTopicCallbacks", "_timerid", "_MsgHandler", "_isShowMsg", "_isShowStatus", "_sendUrlHash", "_extCommands", "_managedVars", "_showStatus", "_uiObservers", "Uib", "__publicField", "__privateAdd", "cb", "c", "splitC", "event", "__privateGet", "fullPath", "autoloadVars", "id", "prop", "val", "store", "autoload", "value", "autoVars", "title", "details", "callback", "nextCbRef", "propChangeCallback", "cbRef", "topic", "msgRecvdEvtCallback", "msg", "receivedMsg", "serverTimestamp", "offset", "cssSelector", "el", "originator", "ms", "oReq", "headers", "elapsedTime", "__privateSet", "varToCopy", "data", "exists", "url", "deflt", "ret", "toggle", "component", "mdText", "html", "textFn", "type", "ui", "propName", "uiOptions", "showHide", "parent", "slot", "config", "res", "err", "opts", "root", "entry", "startStop", "send", "showLog", "targetNode", "that", "mutationList", "mu", "oMu", "an", "i", "htmlCache", "msgToSend", "channel", "numMsgs", "domevent", "target", "props", "key", "ignoreAttribs", "attribs", "name", "form", "frmVals", "frmEl", "v", "classes", "payload", "nprops", "cmd", "quiet", "response", "info", "newUrl", "obj", "r", "receivedCtrlMsg", "txtToSend", "ioNamespace", "u", "t", "delay", "factor", "depth", "reason", "lookup", "options", "eMsg", "uibuilder", "uibuilder_module_default", "uibuilder", "UibVar"]
 }
diff --git a/src/front-end-module/uibuilder.module.js b/src/front-end-module/uibuilder.module.js
index 405287bd..87bb59ad 100644
--- a/src/front-end-module/uibuilder.module.js
+++ b/src/front-end-module/uibuilder.module.js
@@ -63,7 +63,7 @@ import io from 'socket.io-client'
 // if (!io) log('error', 'uibuilder.module.js', 'Socket.IO client failed to load')()
 //#endregion -------- -------- -------- //
 
-const version = '6.6.0-src'
+const version = '6.8.0-src'
 
 // TODO Add option to allow log events to be sent back to Node-RED as uib ctrl msgs
 //#region --- Module-level utility functions --- //
@@ -364,14 +364,12 @@ export const Uib = class Uib {
     #isShowMsg = false
     // Has showStatus been turned on?
     #isShowStatus = false
-    // Has an IntersectionObserver been created? If so, this will hold the reference to it
-    #intersectionObserver = undefined
     // If true, URL hash changes send msg back to node-red. Controlled by watchUrlHash()
     #sendUrlHash = false
     // Externally accessible command functions (NB: Case must match) - remember to update _uibCommand for new commands
     #extCommands = [
-        'get', 'set', 'htmlSend', 'showMsg', 'showStatus', 'uiGet', 'uiWatch', 'include', 'elementExists',
-        'getManagedVarList', 'getWatchedVars',
+        'elementExists', 'get', 'getManagedVarList', 'getWatchedVars', 'htmlSend', 'include',
+        'navigate', 'scrollTo', 'set', 'showMsg', 'showStatus', 'uiGet', 'uiWatch', 'watchUrlHash',
     ]
 
     /** @type {{[key: string]: string}} Managed uibuilder variables */
@@ -480,17 +478,25 @@ export const Uib = class Uib {
     retryMs = 2000          // starting retry ms period for manual socket reconnections workaround
     storePrefix = 'uib_'    // Prefix for all uib-related localStorage
     started = false
+    // NOTE: These can only change when a client (re)connects
     socketOptions = {
         path: this.ioPath,
         transports: ['polling', 'websocket'],
-        auth: {
-            clientVersion: version,
-            clientId: this.clientId,
-            pathName: window.location.pathname,
-            urlParams: Object.fromEntries(new URLSearchParams(location.search)),
-            pageName: undefined,
-            tabId: undefined,
-            lastNavType: undefined,
+        // Using callback so that they are updated automatically on (re)connect
+        // Only put things in here that will be valid for a websocket connected session
+        auth: (cb) => {
+            cb({ // eslint-disable-line n/no-callback-literal
+                clientVersion: version,
+                clientId: this.clientId,
+                pathName: window.location.pathname,
+                urlParams: Object.fromEntries(new URLSearchParams(location.search)),
+                pageName: this.pageName,
+                tabId: this.tabId,
+                lastNavType: this.lastNavType,
+                connectedNum: ++this.connectedNum,
+                // Used to calculate the diff between the server and client connection timestamps - reported if >1 minute
+                browserConnectTimestamp: (new Date()).toISOString(),
+            })
         },
         transportOptions: {
             // Can only set headers when polling
@@ -795,7 +801,7 @@ export const Uib = class Uib {
         if (Object.prototype.hasOwnProperty.call(receivedMsg, 'serverTimestamp')) {
             const serverTimestamp = new Date(receivedMsg.serverTimestamp)
             // @ts-ignore
-            const offset = Math.round(((new Date()) - serverTimestamp) / 3600000) // in ms / 3.6m to get hours
+            const offset = Math.round(((new Date()) - serverTimestamp) / 3600000) // in ms /3.6m to get hours
             if (offset !== this.serverTimeOffset) {
                 log('trace', `Uib:checkTimestamp:${this._ioChannels.server} (server)`, `Offset changed to: ${offset} from: ${this.serverTimeOffset}`)()
                 this.set('serverTimeOffset', offset)
@@ -911,58 +917,17 @@ export const Uib = class Uib {
         navigator.clipboard.writeText(data)
     } // --- End of copyToClipboard --- //
 
-    /** Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.
+    /** DEPRECATED FOR NOW - wasn't working properly.
+     * Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.
      * Requires IntersectionObserver (available to all mainstream browsers from early 2019)
      * Automatically sends a msg back to Node-RED.
      * Requires the element to already exist.
-     * @param {string} cssSelector Required. CSS Selector to examine for visibility
-     * @param {boolean} stop Optional. Default=false. If TRUE, stop the observer for this cssSelector
-     * @param {number} threshold Optional. Default=0.1. Between 0 and 1, the % visibility before trigger
-     */
-    elementIsVisible(cssSelector, stop = false, threshold = 0.1) {
-        if (!IntersectionObserver) return
-
-        // TODO Return a promise? - make return message optional?
-        // https://blog.bitsrc.io/angular-maximizing-performance-with-the-intersection-observer-api-23d81312f178#:~:text=Let%E2%80%99s%20define%20a%20function%20named%20isVisible%20and%20returns,resolve%20%28entry.isIntersecting%29%3B%20observer.disconnect%20%28%29%3B%20%7D%29%3B%20observer.observe%20%28element%29%3B%20%7D%29%3B
-
-        if (!this.#intersectionObserver) {
-            this.#intersectionObserver = new IntersectionObserver( (ioEntries) => {
-                const entries = []
-                // Stupid DOM API's, we have to explicitly loop through the data to be able to use it
-                ioEntries.forEach((entry) => {
-                    // Markup the element (data-isvisible)
-                    entry.target.dataset.isvisible = entry.isIntersecting
-                    // Each entry describes an intersection change for one observed
-                    entries.push({
-                        isIntersecting: entry.isIntersecting,
-                    })
-                })
-
-                // console.log('IntersectionObserver: Entries ', ioEntries, entries)
-                this.send({
-                    payload: entries[0].isIntersecting,
-                    isVisible: entries[0].isIntersecting,
-                    cssSelector,
-                    entries: entries,
-                })
-
-                log('info', 'uib:elementIsVisible', `Element "${cssSelector}" is now ${entries[0].isIntersecting ? 'more than 10%' : 'NOT (<10%)'} visible`)()
-            }, { threshold: threshold })
-        }
-
-        const el = document.querySelector(cssSelector)
-
-        if (el === null) {
-            log('error', 'uib:elementIsVisible', `Element "${cssSelector}" not found`)()
-            return
-        }
-
-        if (stop === true) {
-            this.#intersectionObserver.unobserve(el)
-            return
-        }
-
-        this.#intersectionObserver.observe(el)
+     */
+    elementIsVisible() {
+        const info = 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'
+        log('error', 'uib:elementIsVisible', info)()
+        this.send({payload: 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'})
+        return false
     } // --- End of elementIsVisible --- //
 
     /** Does the chosen CSS Selector currently exist?
@@ -1031,6 +996,15 @@ export const Uib = class Uib {
         return this.#sendUrlHash
     }
 
+    /** Navigate to a new page or a new route (hash)
+     * @param {string} url URL to navigate to. Can be absolute or relative (to current page) or just a hash for a route change
+     * @returns {Location} The new window.location string
+     */
+    navigate(url) {
+        if (url) window.location.href = url
+        return window.location
+    }
+
     //#endregion -------- -------- -------- //
 
     //#region ------- UI handlers --------- //
@@ -1266,6 +1240,28 @@ export const Uib = class Uib {
         return null
     }
 
+    /** Scroll the page
+     * https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollIntoView
+     * @param {string} [cssSelector] Optional. If not set, scrolls to top of page.
+     * @param {{block:(string|undefined),inline:(string|undefined),behavior:(string|undefined)}} [opts] Optional. DOM scrollIntoView options
+     * @returns {boolean} True if element was found, false otherwise
+     */
+    scrollTo(cssSelector, opts) {
+        // @ts-ignore
+        if (!opts) opts = {}
+        if (!cssSelector || cssSelector === 'top'  || cssSelector === 'start') cssSelector = 'body'
+        else if (cssSelector === 'bottom' || cssSelector === 'end') {
+            cssSelector = 'body'
+            opts.block = 'end'
+        }
+        const el = this.$(cssSelector)
+        if (el) {
+            el.scrollIntoView(opts)
+            return true
+        }
+        return false
+    }
+
     /** Show/hide a display card on the end of the visible HTML that will dynamically display the current status of the uibuilder client
      * The card has the id `uib_status`.
      * The display is updated by an event listener created in the class constructor.
@@ -1524,14 +1520,7 @@ export const Uib = class Uib {
         /** since 2020-01-02 Added _socketId which should be the same as the _socketId on the server */
         msgToSend._socketId = this._socket.id
 
-        //#region ---- Update socket.io metadata ---- //
-        // Session tab id
-        this.socketOptions.auth.tabId = this.tabId
-        // How was the page last loaded?
-        this.socketOptions.auth.lastNavType = this.lastNavType
-        // How many times has the client (re)connected since page load
-        this.socketOptions.auth.connectedNum = this.connectedNum
-        //#endregion ---- ---- ---- //
+        // WARNING: You cannot change any of the this._socket.auth settings at this point
 
         // Add the originator metadata if required
         if (originator === '' && this.originator !== '') originator = this.originator
@@ -1804,6 +1793,12 @@ export const Uib = class Uib {
      * @param {object} msg Msg from Node-RED containing a msg._uib object
      */
     _uibCommand(msg) {
+        if (!msg._uib || !msg._uib.command) {
+            log('error', 'uibuilder:_uibCommand', 'Invalid command message received', { msg })()
+            msg.payload = msg.error = 'Invalid command message received'
+            this.send(msg)
+            return
+        }
         const cmd = msg._uib.command
         // Disallowed command request outputs error and ignores the msg (NB: Case must match)
         if (!this.#extCommands.includes(cmd.trim())) {
@@ -1812,10 +1807,17 @@ export const Uib = class Uib {
         }
         const prop = msg._uib.prop
         const value = msg._uib.value
+        const quiet = msg._uib.quiet ?? false
         let response, info
 
-        // Don't forget to update `docs/client-docs/control-from-node-red.md`
+        // Don't forget to update `#extCommands`, `docs/client-docs/control-from-node-red.md` & `functions.md`
         switch (cmd) {
+            case 'elementIsVisible': {
+                response = this.elementIsVisible(prop)
+                // info = `Element "${prop}" ${response ? 'is visible' : 'is not visible'}`
+                break
+            }
+
             case 'elementExists': {
                 response = this.elementExists(prop, false)
                 info = `Element "${prop}" ${response ? 'exists' : 'does not exist'}`
@@ -1850,6 +1852,19 @@ export const Uib = class Uib {
                 break
             }
 
+            case 'navigate': {
+                let newUrl
+                if (prop) newUrl = prop
+                else if (value) newUrl = value
+                response = this.navigate(newUrl)
+                break
+            }
+
+            case 'scrollTo': {
+                response = this.scrollTo(prop, value)
+                break
+            }
+
             case 'set': {
                 let store = false
                 let autoload = false
@@ -1892,29 +1907,30 @@ export const Uib = class Uib {
             }
         }
 
-        if (response === undefined) {
-            response = `'${prop}' is undefined`
-        }
-        if (Object(response).constructor === Promise) {
-            // response = `'${cmd} ${prop}' submitted. Cmd is async, no response available`
-            response
-                .then( (/** @type {any} */ data) => {
-                    msg.payload = msg._uib.response = data
-                    msg.info = msg._uib.info = info
-                    if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`
-                    this.send(msg)
-                    return true
-                })
-                .catch( err => {
-                    log(0, 'Uib:_uibCommand', 'Error: ', err)()
-                })
-        } else {
-            msg.payload = msg._uib.response = response
-            msg.info = msg._uib.info = info
-            if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`
-            this.send(msg)
+        if (quiet !== true) {
+            if (response === undefined) {
+                response = `'${prop}' is undefined`
+            }
+            if (Object(response).constructor === Promise) {
+                // response = `'${cmd} ${prop}' submitted. Cmd is async, no response available`
+                response
+                    .then( (/** @type {any} */ data) => {
+                        msg.payload = msg._uib.response = data
+                        msg.info = msg._uib.info = info
+                        if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`
+                        this.send(msg)
+                        return true
+                    })
+                    .catch( err => {
+                        log(0, 'Uib:_uibCommand', 'Error: ', err)()
+                    })
+            } else {
+                msg.payload = msg._uib.response = response
+                msg.info = msg._uib.info = info
+                if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`
+                this.send(msg)
+            }
         }
-
     } // --- end of _uibCommand ---
 
     /** Do we want to process something? Check pageName, clientId, tabId. Defaults to yes.
@@ -2100,7 +2116,7 @@ export const Uib = class Uib {
     }
 
     /** Send log info back to Node-RED over uibuilder's websocket control output (Port #2)
-     * -@param {...*} arguments All arguments passed to the function are added to the msg.payload
+     * @param {...*} arguments All arguments passed to the function are added to the msg.payload
      */
     logToServer() {
         this.sendCtrl({
@@ -2219,15 +2235,7 @@ export const Uib = class Uib {
 
     /** Called by _ioSetup when Socket.IO connects to Node-RED */
     _onConnect() {
-        this.set('connectedNum', this.connectedNum++)
-        // How many times has the client (re)connected since page load
-        this.socketOptions.auth.connectedNum = this.connectedNum
-        // How was the page last loaded?
-        this.socketOptions.auth.lastNavType = this.lastNavType
-        // Session tab id
-        this.socketOptions.auth.tabId = this.tabId
-        this.socketOptions.auth.more = this.tabId
-
+        // WARNING: You cannot change any of the this._socket.auth settings at this point
         log('info', 'Uib:ioSetup', `✅ SOCKET CONNECTED. Connection count: ${this.connectedNum}, Is a Recovery?: ${this._socket.recovered}. \nNamespace: ${this.ioNamespace}`)()
         this._dispatchCustomEvent('uibuilder:socket:connected', { 'numConnections': this.connectedNum, 'isRecovery': this._socket.recovered })
 
@@ -2277,19 +2285,7 @@ export const Uib = class Uib {
         // Update the URL path to make sure we have the right one
         this.socketOptions.path = this.ioPath
 
-        //#region --- custom meta-data ---
-        // Add the pageName
-        this.socketOptions.auth.pageName = this.pageName
-        // Add stable client id (static unless browser closed)
-        this.socketOptions.auth.clientId = this.clientId
-        this.socketOptions.transportOptions.polling.extraHeaders['x-clientid'] = `${Uib._meta.displayName}; ${Uib._meta.type}; ${Uib._meta.version}; ${this.clientId}`
-        // Session tab id
-        this.socketOptions.auth.tabId = this.tabId
-        // How was the page last loaded?
-        this.socketOptions.auth.lastNavType = this.lastNavType
-        // How many times has the client (re)connected since page load
-        this.socketOptions.auth.connectedNum = this.connectedNum
-        //#endregion --- ---- ---
+        // NOTE: this._socket.auth is now set by callback and so automatically updated for each client (re)connection. No need to set here
 
         // Create the socket - make sure client uses Socket.IO version from the uibuilder module (using path)
         log('trace', 'Uib:ioSetup', `About to create IO object. Transports: [${this.socketOptions.transports.join(', ')}]`)()

From 55d3813ed751fc89285dbfe02b3157c0d1fad554 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Fri, 24 Nov 2023 19:54:12 +0000
Subject: [PATCH 05/78] Fix up socket metadata reporting, remove lastNavType,
 add clientTimeDifference only if client >1min diff from server.

---
 nodes/libs/socket.js | 34 +++++++++++++++++++++-------------
 1 file changed, 21 insertions(+), 13 deletions(-)

diff --git a/nodes/libs/socket.js b/nodes/libs/socket.js
index 16244d44..185fa34d 100644
--- a/nodes/libs/socket.js
+++ b/nodes/libs/socket.js
@@ -343,37 +343,45 @@ class UibSockets {
             pageName = getClientPageName(socket, node)
         }
 
-        return {
+        // @ts-ignore
+        const clientTimeDifference = (new Date(socket.handshake.issued)) - (new Date(socket.handshake.auth.browserConnectTimestamp))
+
+        // WARNING: The socket.handshake data can only ever be changed by the client when it (re)connects
+        const out = {
+            /** What was the originating uibuilder URL */
+            'url': node.url,
+
             '_socketId': socket.id,
-            // Let the flow know what v of uib client is in use
-            'version': socket.handshake.auth.clientVersion,
+            /** Is this client reconnected after temp loss? */
+            'recovered': socket.recovered,
             /** Do our best to get the actual IP addr of client despite any Proxies */
             'ip': getClientRealIpAddress(socket),
+            /** THe referring webpage, should be the full URL of the uibuilder page */
+            'referer': socket.request.headers.referer,
+
+            // Let the flow know what v of uib client is in use
+            'version': socket.handshake.auth.clientVersion,
             /** What is the stable client id (set by uibuilder, retained till browser restart) */
             'clientId': socket.handshake.auth.clientId,
             /** What is the client tab identifier (set by uibuilder modern client) */
             'tabId': socket.handshake.auth.tabId,
-            /** What was the originating uibuilder URL */
-            'url': node.url,
             /** What was the originating page name (for SPA's) */
             'pageName': pageName,
             /** The browser's URL parameters */
             'urlParams': socket.handshake.auth.urlParams,
             /** How many times has this client reconnected (e.g. after sleep) */
             'connections': socket.handshake.auth.connectedNum,
-            /** What type of client nav happened previously */
-            'lastNavType': socket.handshake.auth.lastNavType,
             /** True if https/wss */
             'tls': socket.handshake.secure,
             /** When the client connected to the server */
             'connectedTimestamp': (new Date(socket.handshake.issued)).toISOString(),
-            /** THe referring webpage, should be the full URL of the uibuilder page */
-            'referer': socket.request.headers.referer,
-            /** Is this client reconnected after temp loss? */
-            'recovered': socket.recovered,
-
-            // ? client time offset ?
+            // 'browserConnectTimestamp': socket.handshake.auth.browserConnectTimestamp,
         }
+
+        // Only include this if The difference between the timestamps is > 1 minute - output is in milliseconds
+        if (clientTimeDifference > 60000) out.clientTimeDifference = clientTimeDifference
+
+        return out
     }
 
     /** Get a uib node instance namespace

From a554393b6128efd852f3db37d793c2b01437b0fa Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Fri, 24 Nov 2023 19:55:51 +0000
Subject: [PATCH 06/78] Add full fn list, improve links, deprecate
 elementIsVisible. Add scrollTo & navigate

---
 docs/client-docs/functions.md | 119 ++++++++++++++++++++++++++++++++--
 1 file changed, 114 insertions(+), 5 deletions(-)

diff --git a/docs/client-docs/functions.md b/docs/client-docs/functions.md
index f040b2be..b453c57f 100644
--- a/docs/client-docs/functions.md
+++ b/docs/client-docs/functions.md
@@ -4,7 +4,7 @@ description: >
    Details about the functions/methods used in the UIBUILDER front-end client library.
    Some functions are available to your own custom code and some are hidden inside the `uibuilder` client object.
 created: 2023-01-28 15:56:57
-lastUpdated: 2023-10-30 17:58:51
+lastUpdated: 2023-11-24 19:54:49
 ---
 
 Functions accessible in client-side user code.
@@ -17,6 +17,7 @@ Functions accessible in client-side user code.
 - [Event Handling](#event-handling)
 - [Utility](#utility)
 - [Startup](#startup)
+- [Alphabetical function list](#alphabetical-function-list)
 
 > [!NOTE]
 > Where functions are marked as being accessible as Node-RED command messages, details can be found in [Controling From Node-RED](client-docs/control-from-node-red).
@@ -210,17 +211,23 @@ In addition, internal message handling will recognise standard messages from nod
 
 For functions with no descriptions, please refer to the code. In general, these will not need to be used in your own code.
 
-### `convertMarkdown(mdText)` - Convert's Markdown text input to HTML
+### `convertMarkdown(mdText)` - Convert's Markdown text input to HTML :id=convertMarkdown
 
 Returns an HTML string converted from the Markdown input text. Only if the Markdown-IT library is loaded, otherwise just returns the input text.
 
-### `elementExists(cssSelector, msg = true)` - Does the element exist on the page?
+### `elementExists(cssSelector, msg = true)` - Does the element exist on the page? :id=elementExists
 
 Returns a payload of true or false depending on whether the selected element exists on the page.
 
 Available as a command. Can be called from Node-RED with a message like: `{"command":"elementExists","prop":"#more"}`.
 
-### `elementIsVisible(cssSelector, stop = false, threshold = 0.1)` - Can an HTML element currently be seen by the user?
+### **TEMPORARILY DEPRECATED** Do not use ~~`elementIsVisible(cssSelector, stop = false, threshold = 0.1)` - Can an HTML element currently be seen by the user?~~ :id=elementIsVisible
+
+> [!NOTE]
+> This function was not working correctly and the complexities of using the Intersection Observer API mean that a resolution would take more time than is currently warrented.
+> So, for now, this function is not usable.
+>
+> Info retained for future use.
 
 When the selected element is showing at least 10% in the users browser view, sends a message to Node-RED with `msg.isVisible` set to `true`. Will send another message if the elements shows less than 10%. Will continue to send messages when the element moves in and out of visibility.
 
@@ -289,7 +296,7 @@ Any file type that the browser cannot handle will trigger the browser to automat
 
 Can be called from Node-RED with a message like: `{"command":"include","prop":"./test.html","value":{"id":"incHtm","parent":"#more","attributes":{"style":"width:50%;"}}}`.
 
-### `loadScriptSrc(url)`, `loadStyleSrc(url)`, `loadScriptTxt(string)`, `loadStyleTxt(string)` - Attach a new script or CSS stylesheet to the end of HEAD synchronously
+### `loadScriptSrc(url)`, `loadStyleSrc(url)`, `loadScriptTxt(string)`, `loadStyleTxt(string)` - Attach a new script or CSS stylesheet to the end of HEAD synchronously :id=load
 
 Either from a remote URL or from a text string.
 
@@ -376,6 +383,18 @@ Directly calls `_ui.replaceSlotMarkdown` from the `ui.js` library.
 
 Returns a safe, sanitised HTML string IF the DOMPurify library is loaded. Otherwise returns the input.
 
+### `scrollTo(cssSelector)` - Scroll visible page to an element based on a CSS Selector :id=scrollTo
+
+If the top of the selected element is not currently visible in the browser window, will scroll (the top by default) to make it visible.
+
+An optional 2nd argument can be added to better control what becomes visible. Please see the options for the [`scrollIntoView`](https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollIntoView) DOM API for details of the options. The options object is passed through to that API.
+
+In addition, the cssSelector string `top` or `start` will scroll to the top of the page and `bottom` or `end` will scroll to the bottom of the page.
+
+Returns `true` if the element was found, false otherwise.
+
+Can also be called from Node-RED with a command message: `{"_uib": {command: "scrollTo", "prop": "cssSelector"}}` or, with options: `{"_uib": {command: "scrollTo", "prop": "#mydivid", "value": {"block": "bottom"}}}`.
+
 ### `showDialog(type, ui, msg)` - Show a toast or alert style message on the UI
 
 Directly calls `_ui.showDialog` from the `ui.js` library.
@@ -624,6 +643,36 @@ To set the log level to display in your code, use `uibuilder.logLevel = 5` or `u
 
 Future versions of this function after v6.1 will extend it to output to an on-page visible log and/or log back to Node-RED.
 
+### `navigate(url)` - Either show a new route or navigate to a new page :id=navigate
+
+Returns the current URL after navigation (if any).
+
+The URL can be:
+
+1. A full URL (e.g. `https://example.com/somewhere`)
+2. A relative URL (e.g. `./anotherpage.html`)
+3. A routing hash (e.g. `#route02`)
+
+Or a combination of (1 OR 2) and 3.
+
+#### Relative URLs
+
+Are relative to the CURRENT PAGE. So if that is 
+`index.html`, `./page2.html` would be in the same
+source folder as would `./folder` (which would move to
+`./folder/index.html`).
+
+Similarly, if on the `folder` page, `../` would move up
+a level to the main index html page.
+
+#### Routing Hashes
+
+For pure front-end routing, using `uibrouter` or similar
+library, simply send `#newroute` to move to the new route
+without reloading the page.
+
+Putting a hash on the end of a full or relative URL will
+trigger the route on the resulting page load.
 
 ### `truthy(val, [default])` - Returns true or false or the optional default value depending on the value
 
@@ -653,3 +702,63 @@ While multiple properties can be given in the options object, only the following
 * `ioPath` - As above.
 * `loadStylesheet` - (default=true). Set to false if you don't want the UIBUILDER default stylesheet (`uib-brand.css`) to be loaded if you haven't loaded your own. Checks to see if any stylesheet has already been loaded and if it has, does not load.
 
+## Alphabetical function list
+
+Those marked with `*` can be triggered with a command message from Node-RED flows. Those marked with `§` are low-code _ui functions and so can be triggered from Node-RED using messages containing [suitable `_ui` properties](client-docs/config-driven-ui).
+
+If examining the library code, please remember that functions starting with `_` are for *internal* use.
+
+* [`$`](#$)
+* [`$$`](#$$)
+* [`beaconLog`](#beaconLog)
+* [`cancelChange`](#cancelChange)
+* [`cancelTopic`](#cancelTopic)
+* [`clearHtmlCache`](#clearHtmlCache)
+* [`convertMarkdown`](#convertMarkdown)
+* [`copyToClipboard`](#copyToClipboard)
+* [`elementExists`](#elementExists)*
+* ~~[`elementIsVisible`](#elementIsVisible)~~ - Temporarily deprecated
+* [`eventSend`](#eventSend)
+* [`get`](#get)*
+* [`getManagedVarList`](#getManagedVarList)*
+* [`getStore`](#getStore)
+* [`getWatchedVars`](#getWatchedVars)*
+* [`htmlSend`](#htmlSend)*
+* [`include`](#include)*
+* [`keepHashFromUrl`](#keepHashFromUrl)
+* [`loadScriptSrc`](#load)§
+* [`loadScriptTxt`](#load)§
+* [`loadStyleSrc`](#load)§
+* [`loadStyleTxt`](#load)§
+* [`loadui`](#loadui)§
+* [`log`](#log)
+* [`logToServer`](#logToServer)
+* [`navigate`](#navigate)*
+* [`notify`](#notify)
+* [`onChange`](#onChange)
+* [`onTopic`](#onTopic)
+* [`removeStore`](#removeStore)
+* [`replaceSlot`](#replaceSlot)§
+* [`replaceSlotMarkdown`](#replaceSlotMarkdown)§
+* [`restoreHtmlFromCache`](#restoreHtmlFromCache)
+* [`sanitiseHTML`](#sanitiseHTML)
+* [`saveHtmlCache`](#savehtmlcache)
+* [`scrollTo`](#scrollTo)*
+* [`send`](#send)
+* [`sendCtrl`](#sendCtrl)
+* [`set`](#set)*
+* [`setOriginator`](#setOriginator)
+* [`setPing`](#setPing)
+* [`setStore`](#setStore)
+* [`showDialog`](#showDialog)
+* [`showMsg`](#showMsg)*
+* [`showStatus`](#showStatus)*
+* [`start`](#start)
+* [`syntaxHighlight`](#syntaxHighlight)
+* [`truthy`](#truthy)
+* [`ui`](#ui)
+* [`uiEnhanceElement`](#uiEnhanceElement)
+* [`uiGet`](#uiGet)*
+* [`uiWatch`](#uiWatch)*
+* [`watchDom`](#watchDom)
+* [`watchUrlHash`](#watchUrlHash)*

From 0156ce1aac0935ae4f69657620faad04faff7bad Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Fri, 24 Nov 2023 19:56:20 +0000
Subject: [PATCH 07/78] Add instructions on triggering from Node-RED

---
 docs/client-docs/fe-router.md | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/docs/client-docs/fe-router.md b/docs/client-docs/fe-router.md
index cc9143c6..775a39ac 100644
--- a/docs/client-docs/fe-router.md
+++ b/docs/client-docs/fe-router.md
@@ -27,6 +27,20 @@ The easiest way to include the router is to use the `../uibuilder/utils/uibroute
 
 ## Triggering a route change
 
+### From Node-RED
+
+Route changes can be triggered from Node-RED flows by sending a message to the uibuilder node with msg content such as:
+
+```json
+{"_uib": {"command":"navigate","prop":"#newroute"}}
+```
+
+See [Client Functions (navigate)](client-docs/functions#navigate) for details.
+
+Don't forget that there is also a `watchUrlHash` function, also callable as a command. That will send a message to Node-RED on every route change.
+
+### In the browser
+
 There are three ways to trigger a route change:
 
 * Manually changing the URL, adding `#routeid`

From fe91473c67023c68e6915b3b69b54c14e4bbd445 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Fri, 24 Nov 2023 19:57:20 +0000
Subject: [PATCH 08/78] Add info on `quiet` option, navigate & scrollTo fns

---
 docs/client-docs/control-from-node-red.md | 38 ++++++++++++++++++++---
 1 file changed, 34 insertions(+), 4 deletions(-)

diff --git a/docs/client-docs/control-from-node-red.md b/docs/client-docs/control-from-node-red.md
index d6612f51..39315894 100644
--- a/docs/client-docs/control-from-node-red.md
+++ b/docs/client-docs/control-from-node-red.md
@@ -11,11 +11,17 @@ The UIBUILDER client library can be controlled in various ways from Node-RED to
 
 These ways are all summarised here. They all use a pre-formatted message sent to the appropriate `uibuilder` node in Node-RED.
 
-> [!INFO]
-> This feature was introduced in uibuilder v6.1 with only the get/set commands. Other commands are introduced in later versions.
-
 Please load the "remote-commands" example from the library to test all of these out.
 
+> [!NOTE]
+> Most of these commands will return a message to Node-RED on execution.
+>
+> If you want to surpress that, you can use the `quiet` property set to `true`, e.g.
+>
+> ```json
+> {"_uib": {"command": "scrollTo", "prop": "top", "quiet": true}}
+> ```
+
 ### A summary of the commands available
 
 Possible `msg._uib.command` values.
@@ -26,6 +32,8 @@ Possible `msg._uib.command` values.
 * `getWatchedVars` - gets the list of uibuilder client managed variables that are currently being watched for changes.
 * `htmlSend` - gets the current full HTML as text.
 * `include` - Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API.
+* [`navigate`](#navigation-control) - Triggers a page change or a route change.
+* [`scrollTo`](#scrolling) - Scroll visible page to an element based on a CSS Selector.
 * `set` - set a uibuilder client managed variable.
 * `showMsg` - Turn on/off the display of the latest msg from Node-RED.
 * `showStatus` - Turn on/off the display of the uibuilder client library settings.
@@ -52,6 +60,14 @@ A message containing a `msg._ui` property will be processed internally by the li
 
 Please see the [Dynamic, data-driven HTML content](config-driven-ui.md) content for details.
 
+### Scrolling
+
+The page can be scrolled dynamically by Node-RED using the `scrollTo` command. Send a message like `{"_uib": {"command": "scrollTo", "prop": "cssSelector"}}` Where `cssSelector` is a selector that will select a specific element on the page (e.g. `body` or `#myid` or `.myclass`). If found, the top of that element will be scrolled to the top of the browser window.
+
+`cssSelector` can also be `top`/`start` or `bottom`/`end` which will scroll to the top or bottom of the page.
+
+An optional 2nd object can be passed in the optional `value` property which gives more control. e.g. `{"_uib": {"command": "scrollTo", "prop": "#mydivid", "value": {"block": "bottom"}}}`. See [Client Functions (scrollTo) in the docs](client-docs/functions#scrollTo) for details. See the definition of the [`scrollIntoView`](https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollIntoView) DOM API for details of the options.
+
 ## Navigation & routing
 
 ### `watchUrlHash` Watch for URL Hash changes
@@ -73,7 +89,21 @@ Set `msg._ui` to:
 
 ### Navigation control
 
-Currently, only a page reload control is available. Set `msg._ui` to `{"method": "reload"}`.
+Trigger a page change with a message like:
+
+```json
+{"_uib": {"command":"navigate","prop":"./page2.html"}}
+```
+
+Or, if using a front-end router such as the [`uibrouter` library](client-docs/fe-router):
+
+```json
+{"_uib": {"command":"navigate","prop":"#newroute"}}
+```
+
+See [Client Functions (navigate)](client-docs/functions#navigate) for details.
+
+A page reload can also be done using low-code. Set `msg._ui` to `{"method": "reload"}`.
 
 ## Getting UI information
 

From 2d40201743986cc6904dfb7cbe04616b0fe6e8fc Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Fri, 24 Nov 2023 19:58:02 +0000
Subject: [PATCH 09/78] Lighten colour of h3-h5

---
 docs/index.html | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/docs/index.html b/docs/index.html
index 1d2677e7..d37e176b 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -64,9 +64,12 @@
             margin: auto;
             float: none!important;
         }
-        .markdown-section h1, .markdown-section h2, .markdown-section h3, .markdown-section h4, .markdown-section h5 { 
+        .markdown-section h1, .markdown-section h2 { 
             color: var(--sidebar-nav-link-color--active, var(--sidebar-nav-link-color));
         }
+        .markdown-section h3, .markdown-section h4, .markdown-section h5 { 
+            color: hsl(204 89% 70%);
+        }
         .markdown-section h2 { border-bottom-width: thick;}
         .markdown-section h3 { border-bottom-width: thin;}
         

From c13a6fdbabbae3392ab4055eb2d572544ebdcc7f Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Fri, 24 Nov 2023 20:01:49 +0000
Subject: [PATCH 10/78] Updates

---
 CHANGELOG.md    | 23 +++++++++++++++++++++++
 docs/roadmap.md | 39 ++++++++++++++++++++-------------------
 2 files changed, 43 insertions(+), 19 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 80d755af..d2afe603 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,7 +8,10 @@ Please see the documentation for archived changelogs - a new archive is produced
 
 ## To Fix
 
+## To Do
 
+* update the `remote-commands` example
+* Update docs for ctrl msgs and msg._uib return data to say that anything set via the socket.io auth can only update when the client reconnects. Also document clientTimeDifference
 
 ------------
 
@@ -16,11 +19,31 @@ Please see the documentation for archived changelogs - a new archive is produced
 
 <!-- Nothing currently. -->
 
+### Highlights
+
+* New `navigate` function and command. Triggers a page change or a route change either from front-end JavaScript or via a command message in Node-RED.
+* New `scrollTo` function and command. Scrolls the visible page to a specific location either from front-end JavaScript or via a command message in Node-RED.
+* Front-end commands issued from Node-RED can now take a `quiet` option set to `true` to prevent the return message. e.g. `{"_uib": {"command":"navigate","prop":"#newroute","quiet":true}}`
+
 ### `uibrouter`
 
 * [Issue #232](https://github.com/TotallyInformation/node-red-contrib-uibuilder/issues/232) - Ensure origin script is removed after re-applying to ensure only 1 instance shows instead of 2.
 
+### Client library
+
+* **FIXED** - Some reported client data was incorrect. Notably the `connections`, and `lastNavType` properties. The `connections` property has now been corrected. The `lastNavType`, I now realise will never be correctly updated by the client and therefore it has been removed. Fixing these has also resulted in some simplification of the client code.
+
+* **NEW Function and Command** - `navigate(url)` - Load a new web page or change routes. Can be triggered from Node-RED with msg `{"_uib": {"command":"navigate","prop":"#newroute"}}`. See [Client Functions (navigate) in the docs](client-docs/functions#navigate) for details. URL's can be full, relative (to the current page) or routing (hashes). Obviously, can be called in front-end JavaScript as well as `uibuilder.navigate('./page2.html')` etc.
+* **NEW Function and Command** - `scrollTo(cssSelector)` - Scroll visible page to an element based on a CSS Selector. See [Client Functions (scrollTo) in the docs](client-docs/functions#scrollTo) for details. `top`, `start`, `bottom`, `end` can be used as shortcuts for the top/bottom of the page. An optional 2nd parameter gives more control.
+
+* Added `quiet` property to remote command processing. Set `msg._uib.quiet` to `true` to stop the library returning a message to Node-RED on completion of the command.
+
+* **DEPRECATED Function** - `elementIsVisible` - Was not working correctly and a fix is complex. Will revisit in the future. Let me know if you need this function. This would normally be a breaking change but the function is still there - it returns a console msg and a node-red msg still - and as it wasn't working, I doubt anyone has used it.
+
+### Documentation
 
+* Heading levels 3+ have been made lighter to better differentiate them visually.
+* The front-end client functions page now has an alphabetical list of functions.
 
 
 ## [v6.7.0](https://github.com/TotallyInformation/node-red-contrib-uibuilder/compare/v6.6.0...v6.7.0)
diff --git a/docs/roadmap.md b/docs/roadmap.md
index 359b8fc2..4c3b5cf9 100644
--- a/docs/roadmap.md
+++ b/docs/roadmap.md
@@ -47,16 +47,16 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 * Node Refactoring:
 
   | Node        | Mv src editor.js<br>to resources   | jQ Tooltips | jQ Tt class not id | getSource | Notes                               |
-  | ----------- | :--------------------------------: | :---------: | :-------: | :---------------------------------: | :---------------------------------: |
-  | uibuilder   |                                    |      ✔️     |    ✔️     |           |                                     |
-  | uib-cache   |                                    |             |             |           |                                     |
-  | uib-element |                                    |             |             |     ✔️    |                                     |
-  | uib-html    |                                    |             |             |           |                                     |
-  | uib-save    |                 ✔️                 |      ✔️    |          |           |                                     |
-  | uib-sender  |                                    |             |             |           |                                     |
-  | uib-tag     |                                    |      ✔️    |          |     ✔️    |                                     |
-  | uib-update  |                                    |             |             |           |                                     |
-  | *uib-uplot* |                                    |             |             |           | check this for other needed updates |
+  | ----------- | :--------------------------------: | :---------: | :----------------: | :-------: | :---------------------------------: |
+  | uibuilder   |                                    |      ✔️     |    ✔️             |           |                                     |
+  | uib-cache   |                                    |             |                    |           |                                     |
+  | uib-element |                                    |             |                    |     ✔️    |                                     |
+  | uib-html    |                                    |             |                    |           |                                     |
+  | uib-save    |                 ✔️                 |      ✔️    |                    |           |                                     |
+  | uib-sender  |                                    |             |                    |           |                                     |
+  | uib-tag     |                                    |      ✔️    |                    |     ✔️    |                                     |
+  | uib-update  |                                    |             |                    |           |                                     |
+  | *uib-uplot* |                                    |             |                    |           | check this for other needed updates |
 
   Vars moved to ti-common (replace): node.urlPrefix, node.nodeRoot, paletteCategory, typedInputWidth, localHost, packages, editorInstances[urlsByNodeId]
 
@@ -407,13 +407,11 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 
 ### client Library
 * Add client time offset from server to standard client metadata. [ref](https://discourse.nodered.org/t/time-zone-in-a-z-in-node-red/82537/7?u=totallyinformation)
-* Restrict `onChange` to only watch watched variables? Optionally make the watched var managed automatically (checking to make sure it doesn't start with `_` or `#`)
 * [**STARTED**] Ability to visually show all uibuilder managed variables.
 * A way to show and change uib-brand variables visually?
 * Add extra optional flag to set() to allow saving to localStorage - where set, auto-load on (re)load
 
 * Add individual class handling to _ui processing. [ref](https://developer.mozilla.org/en-US/docs/Web/API/Element/classList).    
-* Consider removing the css auto-load in the next major release since at least 1 person has hit a race condition. [ref](https://discourse.nodered.org/t/uib-brand-css-sometimes-injected/78876).
 
 * Add Node-RED command to find out if a front-end library is installed.
 
@@ -429,19 +427,15 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 * Get _uib/_ui notify features to use Notification API if available
 
 * *New Functions* (all to be callable from Node-RED):
-  * [ ] `uibuilder.watchLocation()` - sends control msgs back to node-red if location changes but page not loaded - e.g. from SPA routers.
   * [ ] `uibuilder.cacheSend()` and `uibuilder.cacheClear()` - send ctrl msgs back to node-red - reinstate in uib-cache fn now we've removed extra ctrl send.
   * [ ] `uibuilder.showLog()` - Add a visible panel on-page to show console.log output. Redirects (or maybe copies) uibuilder.log output - possibly also console.log. Will need amendments to the uibuilder.log function to give options for output to this and/or back to Node-RED.
   * [ ] `uibuilder.socketReconnect()` Add manual socket.io reconnection function so it can be incorporated in disconnected UI notifications.
   * [ ] Expand/collapse all details, expand previous/next (with/without collapsing others) buttons. [ref](https://codereview.stackexchange.com/questions/192138/buttons-that-expand-or-collapse-all-the-details-within-the-document)
-  * [ ] `uibuilder.navigate(locationUrl)` - change page. Ensure it works with SPA routers and with anchor links. Probably won't work with router libraries as they have to intercept link calls.
   * [ ] **HARD - may be impossible?** `uibuilder.convertToUI(cssSelector)` - convert part/all of the DOM to `_ui` json structure. [ref](https://stackoverflow.com/questions/2303713/how-to-serialize-dom-node-to-json-even-if-there-are-circular-references)
 
 * Control from Node-RED. Functions to implement:
   * [ ] watchDom(startStop), uiWatch(cssSelector) [add custom event outputs]
   * [ ] setPing
-  * [ ] `elementExists(selector)`, `elementIsVisible(selector)`
-  * [ ] `navigate(url)`
   * [ ] `loadui()`
   * [ ] `clearHtmlCache()`, `saveHtmlCache()`, `restoreHtmlFromCache()`
   * [ ] getStore, setStore, removeStore - control browser local storage
@@ -461,7 +455,7 @@ To see what is currently being developed, please look at the "Unreleased" sectio
   * _started_ (manual request is done) Send to Node-RED as a control msg (whole HTML or from a CSS Selector)
 
 * _UI - improvements to the config-/data-driven UI creation features
-  * **Started** Add optional page filter to _ui - if `msg._ui.pageName` not matching current page, don't process - needs list and wildcard capabilities.
+  * **Started** Add optional page filter to _ui - if `msg._ui.pageName` not matching current page, don't process - *needs list and wildcard capabilities*.
   * Content editor capability - to set editable content blocks. [ref 1](https://editorjs.io/)
   * Add handling for `_ui.components[n].slots` where slots is an object of named slots with the special 
      name of `default` for the default slot (default must be handled first since it overwrites all existing slots)
@@ -485,7 +479,7 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 * Add functions for manipulating SVG's.
 
 * Allow for PWA use:
-  * Check for OFFLINE use and supress transport errors
+  * Check for OFFLINE use and suppress transport errors
   * Add check for online/offline - make available to user code
   * Auto-generate manifest and sw.js - need icon and to set names/urls/etc
   * https://learn.microsoft.com/en-us/microsoft-edge/progressive-web-apps-chromium/how-to/web-app-manifests
@@ -505,6 +499,10 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 * Allow no var attrib but instead allow ID to create a new managed variable
 * Add uib.var function as a test of using a proxy to manage vars and work with the uib-var component.
 
+### `uibrouter.js` FE router
+
+* Add option to auto scroll to a css selector on route change.
+
 ### `uib-brand.css`
 
 * Forms:
@@ -631,6 +629,7 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 * Minimum node-red v4
 * Removal of uib-list node
 * Remove Pollyfills from uibuilder editor code
+* Consider removing the css auto-load in the next major release since at least 1 person has hit a race condition. [ref](https://discourse.nodered.org/t/uib-brand-css-sometimes-injected/78876).
 * Switch to default of case sensitive URL's for ExpressJS. Socket.IO is already case sensitive but ExpressJS is not. This can cause issues as shown in [Ref](https://discourse.nodered.org/t/uibuilder-and-url-case-sensitivity/81019/6)
 * Add URL case sensitivity flag - currently ExpressJS and Socket.IO handle URL case sensitivity differently. 
 
@@ -638,7 +637,7 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 
   Add case sensitivity flag to uibuilder node and allow setting of ExpressJS flags on routers. [ref 1](https://stackoverflow.com/questions/21216523/nodejs-express-case-sensitive-urls), [Ref 2](http://expressjs.com/en/api.html). Also document in  uibuilder settings. [Ref 3](https://discourse.nodered.org/t/uibuilder-and-url-case-sensitivity/81019/6). 
 
-
+* Restrict `onChange` to only watch watched variables? (checking to make sure it doesn't start with `_` or `#`)
 
 ## Ideas for releases further out
 
@@ -802,6 +801,8 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 
 * Create a `uib-router` node. This would connect a route handler flow to an existing `uibuilder` node. A bit like an `http-in` node but not needing an `http-out` because the out is via the `uibuilder` node. Would allow wildcard routing and ability to restrict by method. The defined path(s) would be added as a new router to the uibuilder routes. Consider whether this needs to be a `uib-router-in`/`uib-router-out` pair instead? 
 
+* Revisit `elementIsVisible` - requires probably 2 fns at least. A monitor and a one-off check. One-off requires a separate observer function for each.
+
 ### Templates
 
 * Serve instance package.json `dependencies` on `../uibuilder/vendor/` path

From 959fcc338894b75cc7084d69f8c832ff16111bce Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Sat, 25 Nov 2023 14:07:29 +0000
Subject: [PATCH 11/78] Added example route change

---
 docs/client-docs/fe-router.md | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/docs/client-docs/fe-router.md b/docs/client-docs/fe-router.md
index 775a39ac..05847c0a 100644
--- a/docs/client-docs/fe-router.md
+++ b/docs/client-docs/fe-router.md
@@ -106,6 +106,18 @@ In addition, if using UIBUILDER, the managed variable `uibrouter` will be update
 * `uibrouter:route-change-failed` - when a route change fails and is rolled back. Details contain new and old route id's. (`uibuilder.set('uibrouter', 'route change failed')`)
 * `uibrouter:routes-added` - When new routes added (via `router.addRoutes()`). (`uibuilder.set('uibrouter', 'routes added')`)
 
+### Example (route change)
+
+```javascript
+// Assumes use of uibuilder and assumes `const router = new uibrouter(config)`
+uibuilder.onChange('uibrouter', (eventname) => {
+    if (eventname === 'route changed') {
+        // Uses 2 of the router variables - see below for the full list
+        console.log(`ROUTE CHANGED. New Route: ${router.currentRouteId}, Old Route: ${router.previousRouteId}`)
+    }
+})
+```
+
 ## Variables
 
 * `config` - A copy of the input configuration used to create the router.

From 6a2b2018fb4b37588ae8b9fbc0987c8f31d0f63b Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Sat, 25 Nov 2023 14:09:26 +0000
Subject: [PATCH 12/78] Added example route change

---
 docs/client-docs/fe-router.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/client-docs/fe-router.md b/docs/client-docs/fe-router.md
index 05847c0a..527299c3 100644
--- a/docs/client-docs/fe-router.md
+++ b/docs/client-docs/fe-router.md
@@ -3,7 +3,7 @@ title: UIBUILDER Front-End Router Library
 description: >
   Details on the configuration and use of UIBUILDER's front-end router.
 created: 2022-02-01 11:15:27
-lastUpdated: 2023-11-19 17:21:15
+lastUpdated: 2023-11-25 14:09:19
 ---
 
 The `uibrouter` front-end library defines a `UibRouter` class. This allows both internal and external content to be dynamically shown, allowing the creation of "Single-Page Apps" (SPA's) or simply keeping parts of the UI hidden from the users until they need them.

From 07bf605f32b571cfbacae8c24f5046fac30b4706 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Sat, 25 Nov 2023 14:33:07 +0000
Subject: [PATCH 13/78] Add comment header for uiEnhanceElement

---
 front-end/ui.esm.js                 | 4 ++++
 front-end/ui.esm.min.js.map         | 4 ++--
 front-end/ui.iife.js                | 4 ++++
 front-end/ui.iife.min.js.map        | 4 ++--
 front-end/uibuilder.esm.js          | 4 ++++
 front-end/uibuilder.esm.min.js.map  | 4 ++--
 front-end/uibuilder.iife.js         | 4 ++++
 front-end/uibuilder.iife.min.js.map | 4 ++--
 nodes/libs/ui.js                    | 4 ++++
 src/front-end-module/ui.js          | 4 ++++
 10 files changed, 32 insertions(+), 8 deletions(-)

diff --git a/front-end/ui.esm.js b/front-end/ui.esm.js
index 1fdb4314..1f6735bd 100644
--- a/front-end/ui.esm.js
+++ b/front-end/ui.esm.js
@@ -398,6 +398,10 @@ var require_ui = __commonJS({
           this.replaceSlotMarkdown(el, comp);
         }
       }
+      /** External alias for _uiComposeComponent
+       * @param {*} el HTML Element to enhance
+       * @param {*} comp Individual uibuilder ui component spec
+       */
       uiEnhanceElement(el, comp) {
         this._uiComposeComponent(el, comp);
       }
diff --git a/front-end/ui.esm.min.js.map b/front-end/ui.esm.min.js.map
index 3706e734..e0207a4a 100644
--- a/front-end/ui.esm.min.js.map
+++ b/front-end/ui.esm.min.js.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
   "sources": ["src/front-end-module/ui.js"],
-  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        this._uiManager(msg)\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += msg.payload\n        if (ui.content) content += ui.content\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    // Namespaces - See https://stackoverflow.com/a/52572048/1309986\n    // const NAMESPACES = {\n    //     svg: 'http://www.w3.org/2000/svg',\n    //     html: 'http://www.w3.org/1999/xhtml',\n    //     xml: 'http://www.w3.org/XML/1998/namespace',\n    //     xlink: 'http://www.w3.org/1999/xlink',\n    //     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n    // }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n\n    } // --- end of _uiManager ---\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName !== null && propName !== '') {\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    // Nightmare of different object types in a DOM Element!\n                    if (prop.constructor.name === 'NamedNodeMap') { // Attributes\n                        const p = {}\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                        out.push(p)\n                    } else if (!prop.constructor.name.toLowerCase().includes('map')) { // Ordinary properties\n                        out.push({\n                            [propName]: prop\n                        })\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                        out.push(p)\n                    }\n                }\n\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n"],
-  "mappings": 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+  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        this._uiManager(msg)\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += msg.payload\n        if (ui.content) content += ui.content\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    // Namespaces - See https://stackoverflow.com/a/52572048/1309986\n    // const NAMESPACES = {\n    //     svg: 'http://www.w3.org/2000/svg',\n    //     html: 'http://www.w3.org/1999/xhtml',\n    //     xml: 'http://www.w3.org/XML/1998/namespace',\n    //     xlink: 'http://www.w3.org/1999/xlink',\n    //     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n    // }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    /** External alias for _uiComposeComponent\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n\n    } // --- end of _uiManager ---\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName !== null && propName !== '') {\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    // Nightmare of different object types in a DOM Element!\n                    if (prop.constructor.name === 'NamedNodeMap') { // Attributes\n                        const p = {}\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                        out.push(p)\n                    } else if (!prop.constructor.name.toLowerCase().includes('map')) { // Ordinary properties\n                        out.push({\n                            [propName]: prop\n                        })\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                        out.push(p)\n                    }\n                }\n\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n"],
+  "mappings": 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   "names": ["require_ui", "__commonJSMin", "exports", "module", "_a", "Ui", "win", "extLog", "jsonHighlight", "__publicField", "json", "msg", "el", "component", "mdText", "opts", "str", "lang", "md", "html", "url", "newScript", "newStyle", "textFn", "type", "ui", "content", "toaster", "toast", "evt", "config", "notify", "resolve", "reject", "ev", "permit", "response", "contentType", "data", "err", "comp", "attrib", "prop", "parentEl", "components", "ns", "compToAdd", "i", "newEl", "isRecurse", "elParent", "all", "compToRemove", "els", "compToReplace", "elToReplace", "compToUpd", "elToUpd", "__toESM", "__require", "script", "sheet", "node", "cssSelector", "thisOut", "listEntries", "bodyEntries", "headEntries", "cols", "v", "propName", "selection", "out", "p", "key", "uiOptions", "error", "slot", "txtReturn"]
 }
diff --git a/front-end/ui.iife.js b/front-end/ui.iife.js
index 361bf390..2ba45ff2 100644
--- a/front-end/ui.iife.js
+++ b/front-end/ui.iife.js
@@ -399,6 +399,10 @@
             this.replaceSlotMarkdown(el, comp);
           }
         }
+        /** External alias for _uiComposeComponent
+         * @param {*} el HTML Element to enhance
+         * @param {*} comp Individual uibuilder ui component spec
+         */
         uiEnhanceElement(el, comp) {
           this._uiComposeComponent(el, comp);
         }
diff --git a/front-end/ui.iife.min.js.map b/front-end/ui.iife.min.js.map
index 3a8c2035..ff8d6128 100644
--- a/front-end/ui.iife.min.js.map
+++ b/front-end/ui.iife.min.js.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
   "sources": ["src/front-end-module/ui.js"],
-  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        this._uiManager(msg)\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += msg.payload\n        if (ui.content) content += ui.content\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    // Namespaces - See https://stackoverflow.com/a/52572048/1309986\n    // const NAMESPACES = {\n    //     svg: 'http://www.w3.org/2000/svg',\n    //     html: 'http://www.w3.org/1999/xhtml',\n    //     xml: 'http://www.w3.org/XML/1998/namespace',\n    //     xlink: 'http://www.w3.org/1999/xlink',\n    //     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n    // }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n\n    } // --- end of _uiManager ---\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName !== null && propName !== '') {\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    // Nightmare of different object types in a DOM Element!\n                    if (prop.constructor.name === 'NamedNodeMap') { // Attributes\n                        const p = {}\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                        out.push(p)\n                    } else if (!prop.constructor.name.toLowerCase().includes('map')) { // Ordinary properties\n                        out.push({\n                            [propName]: prop\n                        })\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                        out.push(p)\n                    }\n                }\n\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n"],
-  "mappings": 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+  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        this._uiManager(msg)\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += msg.payload\n        if (ui.content) content += ui.content\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    // Namespaces - See https://stackoverflow.com/a/52572048/1309986\n    // const NAMESPACES = {\n    //     svg: 'http://www.w3.org/2000/svg',\n    //     html: 'http://www.w3.org/1999/xhtml',\n    //     xml: 'http://www.w3.org/XML/1998/namespace',\n    //     xlink: 'http://www.w3.org/1999/xlink',\n    //     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n    // }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    /** External alias for _uiComposeComponent\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n\n    } // --- end of _uiManager ---\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName !== null && propName !== '') {\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    // Nightmare of different object types in a DOM Element!\n                    if (prop.constructor.name === 'NamedNodeMap') { // Attributes\n                        const p = {}\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                        out.push(p)\n                    } else if (!prop.constructor.name.toLowerCase().includes('map')) { // Ordinary properties\n                        out.push({\n                            [propName]: prop\n                        })\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                        out.push(p)\n                    }\n                }\n\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n"],
+  "mappings": 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   "names": ["require_ui", "__commonJSMin", "exports", "module", "_a", "Ui", "win", "extLog", "jsonHighlight", "__publicField", "json", "msg", "el", "component", "mdText", "opts", "str", "lang", "md", "html", "url", "newScript", "newStyle", "textFn", "type", "ui", "content", "toaster", "toast", "evt", "config", "notify", "resolve", "reject", "ev", "permit", "response", "contentType", "data", "err", "comp", "attrib", "prop", "parentEl", "components", "ns", "compToAdd", "i", "newEl", "isRecurse", "elParent", "all", "compToRemove", "els", "compToReplace", "elToReplace", "compToUpd", "elToUpd", "__toESM", "__require", "script", "sheet", "node", "cssSelector", "thisOut", "listEntries", "bodyEntries", "headEntries", "cols", "v", "propName", "selection", "out", "p", "key", "uiOptions", "error", "slot", "txtReturn"]
 }
diff --git a/front-end/uibuilder.esm.js b/front-end/uibuilder.esm.js
index ac497faa..4f6d2377 100644
--- a/front-end/uibuilder.esm.js
+++ b/front-end/uibuilder.esm.js
@@ -440,6 +440,10 @@ var require_ui = __commonJS({
           this.replaceSlotMarkdown(el, comp);
         }
       }
+      /** External alias for _uiComposeComponent
+       * @param {*} el HTML Element to enhance
+       * @param {*} comp Individual uibuilder ui component spec
+       */
       uiEnhanceElement(el, comp) {
         this._uiComposeComponent(el, comp);
       }
diff --git a/front-end/uibuilder.esm.min.js.map b/front-end/uibuilder.esm.min.js.map
index 20ae7c4c..424cc73a 100644
--- a/front-end/uibuilder.esm.min.js.map
+++ b/front-end/uibuilder.esm.min.js.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
   "sources": ["src/front-end-module/ui.js", "src/front-end-module/uibuilder.module.js", "src/components/uib-var.js", "node_modules/engine.io-parser/build/esm/commons.js", "node_modules/engine.io-parser/build/esm/encodePacket.browser.js", "node_modules/engine.io-parser/build/esm/contrib/base64-arraybuffer.js", "node_modules/engine.io-parser/build/esm/decodePacket.browser.js", "node_modules/engine.io-parser/build/esm/index.js", "node_modules/@socket.io/component-emitter/index.mjs", "node_modules/engine.io-client/build/esm/globalThis.browser.js", "node_modules/engine.io-client/build/esm/util.js", "node_modules/engine.io-client/build/esm/contrib/parseqs.js", "node_modules/engine.io-client/build/esm/transport.js", "node_modules/engine.io-client/build/esm/contrib/yeast.js", "node_modules/engine.io-client/build/esm/contrib/has-cors.js", "node_modules/engine.io-client/build/esm/transports/xmlhttprequest.browser.js", "node_modules/engine.io-client/build/esm/transports/polling.js", "node_modules/engine.io-client/build/esm/transports/websocket-constructor.browser.js", "node_modules/engine.io-client/build/esm/transports/websocket.js", "node_modules/engine.io-client/build/esm/transports/webtransport.js", "node_modules/engine.io-client/build/esm/transports/index.js", "node_modules/engine.io-client/build/esm/contrib/parseuri.js", "node_modules/engine.io-client/build/esm/socket.js", "node_modules/engine.io-client/build/esm/index.js", "node_modules/socket.io-client/build/esm/url.js", "node_modules/socket.io-parser/build/esm/index.js", "node_modules/socket.io-parser/build/esm/is-binary.js", "node_modules/socket.io-parser/build/esm/binary.js", "node_modules/socket.io-client/build/esm/on.js", "node_modules/socket.io-client/build/esm/socket.js", "node_modules/socket.io-client/build/esm/contrib/backo2.js", "node_modules/socket.io-client/build/esm/manager.js", "node_modules/socket.io-client/build/esm/index.js"],
-  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        this._uiManager(msg)\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += msg.payload\n        if (ui.content) content += ui.content\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    // Namespaces - See https://stackoverflow.com/a/52572048/1309986\n    // const NAMESPACES = {\n    //     svg: 'http://www.w3.org/2000/svg',\n    //     html: 'http://www.w3.org/1999/xhtml',\n    //     xml: 'http://www.w3.org/XML/1998/namespace',\n    //     xlink: 'http://www.w3.org/1999/xlink',\n    //     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n    // }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n\n    } // --- end of _uiManager ---\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName !== null && propName !== '') {\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    // Nightmare of different object types in a DOM Element!\n                    if (prop.constructor.name === 'NamedNodeMap') { // Attributes\n                        const p = {}\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                        out.push(p)\n                    } else if (!prop.constructor.name.toLowerCase().includes('map')) { // Ordinary properties\n                        out.push({\n                            [propName]: prop\n                        })\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                        out.push(p)\n                    }\n                }\n\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n", "/* This is the Front-End JavaScript for uibuilder  in HTML Module form\n  It provides a number of global objects that can be used in your own javascript.\n  see the docs folder `./docs/uibuilder.module.md` for details of how to use this fully.\n\n  Please use the default index.js file for your own code and leave this as-is.\n  See Uib._meta for client version string\n\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n//#region --- Type Defs --- //\n/**\n * A string containing HTML markup\n * @typedef {string} html\n */\n//#endregion --- Type Defs --- //\n\n//#region --- We need the Socket.IO & ui libraries & the uib-var component  --- //\n// @ts-ignore - Note: Only works when using esbuild to bundle\nimport Ui from './ui'\nimport UibVar from '../components/uib-var'\nimport io from 'socket.io-client'\n\n// TODO - Maybe - check if already loaded as window['io']?\n// TODO - Maybe - Should this be moved to inside the class - would know the httpRoot then so less need to guess?\n// TODO           Or, could pull the cookie processing out of the class\n// const ioLocns = [ // Likely locations of the Socket.IO client library\n//     // Where it should normally be\n//     '../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and haven't changed httpNodeRoot\n//     '/uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and have changed httpNodeRoot\n//     '../../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Direct from the Internet - last ditch attempt\n//     'https://cdn.jsdelivr.net/npm/socket.io-client/+esm',\n// ]\n\n// let io\n// for (const locn of ioLocns) {\n//     try {\n//         ({ io } = await import(locn))\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library found at '${locn}'`)()\n//     } catch (e) {\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library not found at '${locn}'`)()\n//     }\n//     if (io) break\n// }\n// if (!io) log('error', 'uibuilder.module.js', 'Socket.IO client failed to load')()\n//#endregion -------- -------- -------- //\n\nconst version = '6.8.0-src'\n\n// TODO Add option to allow log events to be sent back to Node-RED as uib ctrl msgs\n//#region --- Module-level utility functions --- //\n\n// @ts-ignore Detect whether the loaded library is minified or not\nconst isMinified = !(/param/).test(function (param) { }) // eslint-disable-line no-unused-vars\n\n//#region --- print/console - debugging output functions --- //\n\n/** Default log level - Error & Warn */\nlet logLevel = isMinified ? 0 : 1  // When using minified lib, assume production and only log errors otherwise also log warn\n// function changeLogLevel(level) {\n//     logLevel = level\n//     console.trace = logLevel < 4 ? function(){} : console.trace\n//     console.debug = logLevel < 2 ? function(){} : console.debug\n//     if ( logLevel < 1 ) {\n//         console.log = console.group = console.groupEnd =  function(){}\n//     }\n// }\n\n// Experimental\nconst LOG_STYLES = {\n    // 0\n    error: {\n        css: 'background: red; color: black;',\n        txtCss: 'color: red; ',\n        pre: '\u26D4 ',\n        console: 'error',  // or trace\n    },\n    // 1\n    warn: {\n        css: 'background: darkorange; color: black;',\n        txtCss: 'color: darkorange; ',\n        pre: '\u26A0 ',\n        console: 'warn',\n    },\n    // 2\n    info: {\n        css: 'background: aqua; color: black;',\n        txtCss: 'color: aqua;',\n        pre: '\u2757 ',\n        console: 'info',\n    },\n    // 3\n    log: {\n        css: 'background: grey; color: yellow;',\n        txtCss: 'color: grey;',\n        pre: '',\n        console: 'log',\n    },\n    // 4\n    debug: {\n        css: 'background: chartreuse; color: black;',\n        txtCss: 'color: chartreuse;',\n        pre: '',\n        console: 'debug',\n    },\n    // 5\n    trace: {\n        css: 'background: indigo; color: yellow;',\n        txtCss: 'color: hotpink;',\n        pre: '',\n        console: 'log',\n    },\n\n    names: ['error', 'warn', 'info', 'log', 'debug', 'trace'],\n    reset: 'color: inherit;',\n    head: 'font-weight:bold; font-style:italic;',\n    level: 'font-weight:bold; border-radius: 3px; padding: 2px 5px; display:inline-block;',\n}\n/** Custom logging. e.g. log(2, 'here:there', 'jiminy', {fred:'jim'})()\n * @returns {Function} Log function @example log(2, 'here:there', 'jiminy', {fred:'jim'})()\n */\nfunction log() {\n    // Get the args\n    const args = Array.prototype.slice.call(arguments)\n\n    // 1st arg is the log level/type\n    let level = args.shift()\n    let strLevel\n    switch (level) {\n        case 'trace':\n        case 5: {\n            if (logLevel < 5) break\n            level = 5 // make sure level is numeric\n            strLevel = 'trace'\n            break\n        }\n\n        case 'debug':\n        case 4: {\n            if (logLevel < 4) break\n            level = 4\n            strLevel = 'debug'\n            break\n        }\n\n        case 'log':\n        case 3: {\n            if (logLevel < 3) break\n            level = 3\n            strLevel = 'log'\n            break\n        }\n\n        case 'info':\n        case '':\n        case 2: {\n            if (logLevel < 2) break\n            level = 2\n            strLevel = 'info'\n            break\n        }\n\n        case 'warn':\n        case 1: {\n            if (logLevel < 1) break\n            level = 1\n            strLevel = 'warn'\n            break\n        }\n\n        case 'error':\n        case 'err':\n        case 0: {\n            if (logLevel < 0) break\n            level = 0\n            strLevel = 'error'\n            break\n        }\n\n        default: {\n            level = -1\n            break\n        }\n\n    }\n\n    // If set to something unknown, no log output\n    if (strLevel === undefined) return function () { }\n\n    // 2nd arg is a heading that will be colour highlighted\n    const head = args.shift()\n\n    // Bind back to console.log (could use console[strLevel] but some levels ignore some formatting, use console.xxx directly or dedicated fn)\n    return Function.prototype.bind.call(\n        console[LOG_STYLES[strLevel].console],\n        console,\n        `%c${LOG_STYLES[strLevel].pre}${strLevel}%c [${head}]`, `${LOG_STYLES.level} ${LOG_STYLES[strLevel].css}`, `${LOG_STYLES.head} ${LOG_STYLES[strLevel].txtCss}`,\n        ...args\n    )\n}\n//#endregion\n\n/** A hack to dynamically load a remote module and wait until it is loaded\n * @param {string} url The URL of the module to load\n * @returns {object|null} Either the result object or null (if the load fails)\n */\n// function loadModule(url) { // eslint-disable-line no-unused-vars\n//     let done\n\n//     import(url)\n//         .then(res => {\n//             log('debug', '>> then >>', res)()\n//             done = res\n//         })\n//         .catch(err => {\n//             console.error(`[uibuilder:loadModule] Could not load module ${url}`, err)\n//             done = null\n//         })\n\n//     //  eslint-disable-next-line no-empty\n//     while (!done) { } // eslint-disable-line no-unmodified-loop-condition\n\n//     return done\n// }\n\n/** Makes a null or non-object into an object\n * If not null, moves \"thing\" to {payload:thing}\n *\n * @param {*} thing Thing to check\n * @param {string} [property='payload'] property that \"thing\" is moved to if not null and not an object\n * @returns {!object} _\n */\nfunction makeMeAnObject(thing, property) {\n    if (!property) property = 'payload'\n    if (typeof property !== 'string') {\n        log('warn', 'uibuilderfe:makeMeAnObject', `WARNING: property parameter must be a string and not: ${typeof property}`)()\n        property = 'payload'\n    }\n    let out = {}\n    if ( thing !== null && thing.constructor.name === 'Object' ) {\n        out = thing\n    } else if (thing !== null) {\n        out[property] = thing\n    }\n    return out\n} // --- End of make me an object --- //\n\n/** Joins all arguments as a URL string\n * see http://stackoverflow.com/a/28592528/3016654\n * since v1.0.10, fixed potential double // issue\n * arguments {string} URL fragments\n * @returns {string} _\n */\nfunction urlJoin() {\n    const paths = Array.prototype.slice.call(arguments)\n    const url = '/' + paths.map(function (e) {\n        return e.replace(/^\\/|\\/$/g, '')\n    })\n        .filter(function (e) {\n            return e\n        })\n        .join('/')\n    return url.replace('//', '/')\n} // ---- End of urlJoin ---- //\n\n/** Convert JSON to Syntax Highlighted HTML\n * @param {object} json A JSON/JavaScript Object\n * @returns {html} Object reformatted as highlighted HTML\n */\nfunction syntaxHighlight(json) {\n    if (json === undefined) {\n        json = '<span class=\"undefined\">undefined</span>'\n    } else {\n        try {\n            json = JSON.stringify(json, undefined, 4)\n            // json = json.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;') // eslint-disable-line newline-per-chained-call\n            json = json.replace(/(\"(\\\\u[a-zA-Z0-9]{4}|\\\\[^u]|[^\\\\\"])*\"(\\s*:)?|\\b(true|false|null)\\b|-?\\d+(?:\\.\\d*)?(?:[eE][+-]?\\d+)?)/g, function (match) { // eslint-disable-line prefer-named-capture-group\n                let cls = 'number'\n                if ((/^\"/).test(match)) {\n                    if ((/:$/).test(match)) {\n                        cls = 'key'\n                    } else {\n                        cls = 'string'\n                    }\n                } else if ((/true|false/).test(match)) {\n                    cls = 'boolean'\n                } else if ((/null/).test(match)) {\n                    cls = 'null'\n                }\n                return `<span class=\"${cls}\">${match}</span>`\n            })\n        } catch (e) {\n            json = `Syntax Highlight ERROR: ${e.message}`\n        }\n    }\n    return json\n}\n\n/** msg._ui handling functions */\nconst _ui = new Ui(window, log, syntaxHighlight)\n\n//#endregion --- Module-level utility functions --- //\n\n/** Define and export the Uib class - note that an instance of the class is also exported in the wrap-up\n * @typicalname uibuilder\n */\nexport const Uib = class Uib {\n\n    //#region --- Static variables ---\n    static _meta = {\n        version: version,\n        type: 'module',\n        displayName: 'uibuilder',\n    }\n    //#endregion ---- ---- ---- ----\n\n    //#region private class vars\n\n    // How many times has the loaded instance connected to Socket.IO (detect if not a new load?)\n    connectedNum = 0\n    // event listener callbacks by property name\n    // #events = {}\n    // Socket.IO channel names\n    _ioChannels = { control: 'uiBuilderControl', client: 'uiBuilderClient', server: 'uiBuilder' }\n    /** setInterval holder for pings @type {function|undefined} */\n    #pingInterval\n    // onChange event callbacks\n    #propChangeCallbacks = {}\n    // onTopic event callbacks\n    #msgRecvdByTopicCallbacks = {}\n    // Is Vue available?\n    isVue = false\n    // What version? Set in startup if Vue is loaded. Won't always work\n    vueVersion = undefined\n    /** setInterval id holder for Socket.IO checkConnect\n     * @type {number|null}\n     */\n    #timerid = null\n    // Holds the reference ID for the internal msg change event handler so that it can be cancelled\n    #MsgHandler\n    // Placeholder for io.socket - can't make a # var until # fns allowed in all browsers\n    _socket\n    // Placeholder for an observer that watches the whole DOM for changes - can't make a # var until # fns allowed in all browsers\n    _htmlObserver\n    // Has showMsg been turned on?\n    #isShowMsg = false\n    // Has showStatus been turned on?\n    #isShowStatus = false\n    // If true, URL hash changes send msg back to node-red. Controlled by watchUrlHash()\n    #sendUrlHash = false\n    // Externally accessible command functions (NB: Case must match) - remember to update _uibCommand for new commands\n    #extCommands = [\n        'elementExists', 'get', 'getManagedVarList', 'getWatchedVars', 'htmlSend', 'include',\n        'navigate', 'scrollTo', 'set', 'showMsg', 'showStatus', 'uiGet', 'uiWatch', 'watchUrlHash',\n    ]\n\n    /** @type {{[key: string]: string}} Managed uibuilder variables */\n    #managedVars = {}\n\n    // What status variables to show via showStatus()\n    #showStatus = {\n        online: { 'var': 'online', 'label': 'Online?', 'description': 'Is the browser online?', },\n        ioConnected: { 'var': 'ioConnected', 'label': 'Socket.IO connected?', 'description': 'Is Socket.IO connected?', },\n        connectedNum: { 'var': 'connectedNum', 'label': '# reconnections', 'description': 'How many times has Socket.IO had to reconnect since last page load?', },\n\n        clientId: { 'var': 'clientId', 'label': 'Client ID', 'description': 'Static client unique id set in Node-RED. Only changes when browser is restarted.', },\n        tabId: { 'var': 'tabId', 'label': 'Browser tab ID', 'description': 'Static unique id for the browser\\'s current tab', },\n        cookies: { 'var': 'cookies', 'label': 'Cookies', 'description': 'Cookies set in Node-RED', },\n        httpNodeRoot: { 'var': 'httpNodeRoot', 'label': 'httpNodeRoot', 'description': 'From Node-RED\\' settings.js, affects URL\\'s. May be wrong for pages in sub-folders', },\n        pageName: { 'var': 'pageName', 'label': 'Page name', 'description': 'Actual name of this page', },\n\n        ioNamespace: { 'var': 'ioNamespace', 'label': 'SIO namespace', 'description': 'Socket.IO namespace - unique to each uibuilder node instance', },\n        // ioPath: { 'var': 'ioPath', 'label': 'SIO path', 'description': '', }, // no longer needed in the modern client\n        socketError: { 'var': 'socketError', 'label': 'Socket error', 'description': 'If the Socket.IO connection has failed, says why', },\n\n        msgsSent: { 'var': 'msgsSent', 'label': '# msgs sent', 'description': 'How many standard messages have been sent to Node-RED?', },\n        msgsReceived: { 'var': 'msgsReceived', 'label': '# msgs received', 'description': 'How many standard messages have been received from Node-RED?', },\n        msgsSentCtrl: { 'var': 'msgsSentCtrl', 'label': '# control msgs sent', 'description': 'How many control messages have been sent to Node-RED?', },\n        msgsCtrlReceived: { 'var': 'msgsCtrlReceived', 'label': '# control msgs received', 'description': 'How many control messages have been received from Node-RED?', },\n        originator: { 'var': 'originator', 'label': 'Node Originator', 'description': 'If the last msg from Node-RED was from a `uib-sender` node, this will be its node id so that messasges can be returned to it', },\n        topic: { 'var': 'topic', 'label': 'Default topic', 'description': 'Optional default topic to be included in outgoing standard messages', },\n\n        started: { 'var': 'started', 'label': 'Has uibuilder client started?', 'description': 'Whether `uibuilder.start()` ran successfully. This should self-run and should not need to be run manually', },\n        version: { 'var': 'version', 'label': 'uibuilder client version', 'description': 'The version of the loaded uibuilder client library', },\n        serverTimeOffset: { 'var': 'serverTimeOffset', 'label': 'Server time offset (Hrs)', 'description': 'The number of hours difference between the Node-red server and the client', },\n    }\n\n    // Track ui observers (see uiWatch)\n    #uiObservers = {}\n\n    //#endregion\n\n    //#region public class vars\n\n    // TODO Move to proper getters\n    //#region ---- Externally read-only (via .get method) ---- //\n    // version - moved to _meta\n    /** Client ID set by uibuilder on connect */\n    clientId = ''\n    /** The collection of cookies provided by uibuilder */\n    cookies = {}\n    /** Copy of last control msg object received from sever */\n    ctrlMsg = {}\n    /** Is Socket.IO client connected to the server? */\n    ioConnected = false\n    // Is the browser tab containing this page visible or not?\n    isVisible = false\n    // Remember the last page (re)load/navigation type: navigate, reload, back_forward, prerender\n    lastNavType = ''\n    /** Last std msg received from Node-RED */\n    msg = {}\n    /** number of messages sent to server since page load */\n    msgsSent = 0\n    /** number of messages received from server since page load */\n    msgsReceived = 0\n    /** number of control messages sent to server since page load */\n    msgsSentCtrl = 0\n    /** number of control messages received from server since page load */\n    msgsCtrlReceived = 0\n    /** Is the client online or offline? */\n    online = navigator.onLine\n    /** last control msg object sent via uibuilder.send() @since v2.0.0-dev3 */\n    sentCtrlMsg = {}\n    /** last std msg object sent via uibuilder.send() */\n    sentMsg = {}\n    /** placeholder to track time offset from server, see fn socket.on(ioChannels.server ...) */\n    serverTimeOffset = null\n    /** placeholder for a socket error message */\n    socketError = null\n    // tab identifier from session storage\n    tabId = ''\n    // Actual name of current page (set in constructor)\n    pageName = null\n    // Is the DOMPurify library loaded? Updated in start()\n    purify = false\n    // Is the Markdown-IT library loaded? Updated in start()\n    markdown = false\n    // Current URL hash. Initial set is done from start->watchHashChanges via a set to make it watched\n    urlHash = location.hash\n    //#endregion ---- ---- ---- ---- //\n\n    // TODO Move to proper getters/setters\n    //#region ---- Externally Writable (via .set method, read via .get method) ---- //\n    /** Default originator node id - empty string by default\n     * @type {string}\n     */\n    originator = ''\n    /** Default topic - used by send if set and no topic provided\n     * @type {(string|undefined)}\n     */\n    topic = undefined\n    //#endregion ---- ---- ---- ---- //\n\n    //#region ---- These are unlikely to be needed externally: ----\n    autoSendReady = true\n    httpNodeRoot = '' // Node-RED setting (via cookie)\n    ioNamespace = ''\n    ioPath = ''\n    retryFactor = 1.5       // starting delay factor for subsequent reconnect attempts\n    retryMs = 2000          // starting retry ms period for manual socket reconnections workaround\n    storePrefix = 'uib_'    // Prefix for all uib-related localStorage\n    started = false\n    // NOTE: These can only change when a client (re)connects\n    socketOptions = {\n        path: this.ioPath,\n        transports: ['polling', 'websocket'],\n        // Using callback so that they are updated automatically on (re)connect\n        // Only put things in here that will be valid for a websocket connected session\n        auth: (cb) => {\n            cb({ // eslint-disable-line n/no-callback-literal\n                clientVersion: version,\n                clientId: this.clientId,\n                pathName: window.location.pathname,\n                urlParams: Object.fromEntries(new URLSearchParams(location.search)),\n                pageName: this.pageName,\n                tabId: this.tabId,\n                lastNavType: this.lastNavType,\n                connectedNum: ++this.connectedNum,\n                // Used to calculate the diff between the server and client connection timestamps - reported if >1 minute\n                browserConnectTimestamp: (new Date()).toISOString(),\n            })\n        },\n        transportOptions: {\n            // Can only set headers when polling\n            polling: {\n                extraHeaders: {\n                    'x-clientid': `${Uib._meta.displayName}; ${Uib._meta.type}; ${Uib._meta.version}; ${this.clientId}`,\n                }\n            },\n        },\n    }\n    //#endregion -- not external --\n\n    //#endregion --- End of variables ---\n\n    //#region ------- Getters and Setters ------- //\n\n    // Change logging level dynamically (affects both console. and print.)\n    set logLevel(level) { logLevel = level; console.log('%c\u2757 info%c [logLevel]', `${LOG_STYLES.level} ${LOG_STYLES.info.css}`, `${LOG_STYLES.head} ${LOG_STYLES.info.txtCss}`, `Set to ${level} (${LOG_STYLES.names[level]})`) /* changeLogLevel(level)*/ }\n    get logLevel() { return logLevel }\n\n    get meta() { return Uib._meta }\n\n    /** Function to set uibuilder properties to a new value - works on any property except _* or #*\n     * Also triggers any event listeners.\n     * Example: this.set('msg', {topic:'uibuilder', payload:42});\n     * @param {string} prop Any uibuilder property who's name does not start with a _ or #\n     * @param {*} val The set value of the property or a string declaring that a protected property cannot be changed\n     * @param {boolean} [store] If true, the variable is also saved to the browser localStorage if possible\n     * @param {boolean} [autoload] If true & store is true, on load, uib will try to restore the value from the store automatically\n     * @returns {*} Input value\n     */\n    set(prop, val, store = false, autoload = false) {\n        // Check for excluded properties - we don't want people to set these\n        // if (this.#excludedSet.indexOf(prop) !== -1) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:set', `Cannot use set() on protected property \"${prop}\"`)()\n            return `Cannot use set() on protected property \"${prop}\"`\n        }\n\n        // We must add the var to the uibuilder object\n        this[prop] = val\n\n        // Keep track of all managed variables\n        this.#managedVars[prop] = prop\n\n        // If requested, save to store\n        if (store === true) this.setStore(prop, val, autoload)\n\n        log('trace', 'Uib:set', `prop set - prop: ${prop}, val: `, val, ` store: ${store}, autoload: ${autoload}`)()\n\n        // Trigger this prop's event callbacks (listeners which are set by this.onChange)\n        // this.emit(prop, val)\n\n        // trigger an event on the prop name, pass both the name and value to the event details\n        this._dispatchCustomEvent('uibuilder:propertyChanged', { 'prop': prop, 'value': val, 'store': store, 'autoload': autoload })\n\n        return val\n    }\n\n    /** Function to get the value of a uibuilder property\n     * Example: uibuilder.get('msg')\n     * @param {string} prop The name of the property to get as long as it does not start with a _ or #\n     * @returns {*|undefined} The current value of the property\n     */\n    get(prop) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:get', `Cannot use get() on protected property \"${prop}\"`)()\n            return\n        }\n        if (prop === 'version') return Uib._meta.version\n        if (prop === 'msgsCtrl') return this.msgsCtrlReceived\n        if (prop === 'reconnections') return this.connectedNum\n        if (this[prop] === undefined) {\n            log('warn', 'Uib:get', `get() - property \"${prop}\" is undefined`)()\n        }\n        return this[prop]\n    }\n\n    /** Write to localStorage if possible. console error output if can't write\n     * Also uses this.storePrefix\n     * @example\n     *   uibuilder.setStore('fred', 42)\n     *   console.log(uibuilder.getStore('fred'))\n     * @param {string} id localStorage var name to be used (prefixed with 'uib_')\n     * @param {*} value value to write to localstore\n     * @param {boolean} [autoload] If true, on load, uib will try to restore the value from the store\n     * @returns {boolean} True if succeeded else false\n     */\n    setStore(id, value, autoload = false) {\n        let autoVars = {}\n        if (autoload === true) {\n            try {\n                autoVars = this.getStore('_uibAutoloadVars') || {}\n            } catch (e) {}\n        }\n        if (typeof value === 'object') {\n            try {\n                value = JSON.stringify(value)\n            } catch (e) {\n                log('error', 'Uib:setStore', 'Cannot stringify object, not storing. ', e)()\n                return false\n            }\n        }\n        try {\n            localStorage.setItem(this.storePrefix + id, value)\n            if (autoload) {\n                autoVars[id] = id\n                try {\n                    localStorage.setItem(this.storePrefix + '_uibAutoloadVars', JSON.stringify(autoVars))\n                } catch (e) {\n                    log('error', 'Uib:setStore', 'Cannot save autoload list. ', e)()\n                }\n            }\n            this._dispatchCustomEvent('uibuilder:propertyStored', { 'prop': id, 'value': value, 'autoload': autoload })\n            return true\n        } catch (e) {\n            log('error', 'Uib:setStore', 'Cannot write to localStorage. ', e)()\n            return false\n        }\n    } // --- end of setStore --- //\n\n    /** Attempt to get and re-hydrate a key value from localStorage\n     * Note that all uib storage is automatically prefixed using this.storePrefix\n     * @param {*} id The key of the value to attempt to retrieve\n     * @returns {*|null|undefined} The re-hydrated value of the key or null if key not found, undefined on error\n     */\n    getStore(id) {\n        try {\n            // @ts-ignore\n            return JSON.parse(localStorage.getItem(this.storePrefix + id))\n        } catch (e) { }\n        try {\n            return localStorage.getItem(this.storePrefix + id)\n        } catch (e) {\n            return undefined\n        }\n    }\n\n    /** Remove a given id from the uib keys in localStorage\n     * @param {*} id The key to remove\n     */\n    removeStore(id) {\n        try {\n            localStorage.removeItem(this.storePrefix + id)\n        } catch (e) { }\n    }\n\n    /** Returns a list of uibuilder properties (variables) that can be watched with onChange\n     * @returns {{[key: string]: string}} List of uibuilder managed variables\n     */\n    getManagedVarList() {\n        return this.#managedVars\n    }\n\n    getWatchedVars() {\n        return Object.keys(this.#propChangeCallbacks)\n    }\n\n    //#endregion ------- -------- ------- //\n\n    //#region ------- Our own event handling system ---------- //\n\n    // TODO Add option to send event details back to Node-RED as uib ctrl msg\n    /** Standard fn to create a custom event with details & dispatch it\n     * @param {string} title The event name\n     * @param {*} details Any details to pass to event output\n     */\n    _dispatchCustomEvent(title, details) {\n        const event = new CustomEvent(title, { detail: details })\n        document.dispatchEvent(event)\n    }\n\n    // See the this.#propChangeCallbacks & msgRecvdByTopicCallbacks private vars\n\n    /** Register on-change event listeners for uibuilder tracked properties\n     * Make it possible to register a function that will be run when the property changes.\n     * Note that you can create listeners for non-existant properties\n     * @example: uibuilder.onChange('msg', (msg) => { console.log('uibuilder.msg changed! It is now: ', msg) })\n     *\n     * @param {string} prop The property of uibuilder that we want to monitor\n     * @param {Function} callback The function that will run when the property changes, parameter is the new value of the property after change\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelChange if you need to remove a listener\n     */\n    onChange(prop, callback) {\n        // Note: Property does not have to exist yet\n\n        // console.debug(`[Uib:onchange] pushing new callback (event listener) for property: ${prop}`)\n\n        // Create a new array or add to the array of callback functions for the property in the events object\n        // if (this.#events[prop]) {\n        //     this.#events[prop].push(callback)\n        // } else {\n        //     this.#events[prop] = [callback]\n        // }\n\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#propChangeCallbacks[prop]) this.#propChangeCallbacks[prop] = { _nextRef: 1 }\n        else this.#propChangeCallbacks[prop]._nextRef++\n\n        const nextCbRef = this.#propChangeCallbacks[prop]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const propChangeCallback = this.#propChangeCallbacks[prop][nextCbRef] = function propChangeCallback(e) {\n            // If the prop name matches the 1st arg in the onChange fn:\n            if (prop === e.detail.prop) {\n                const value = e.detail.value\n                // console.warn('[Uib:onChange:evt] uibuilder:propertyChanged. ', e.detail)\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(value, value)\n            }\n        }\n\n        document.addEventListener('uibuilder:propertyChanged', propChangeCallback)\n\n        return nextCbRef\n    } // ---- End of onChange() ---- //\n\n    cancelChange(prop, cbRef) {\n        document.removeEventListener('uibuilder:propertyChanged', this.#propChangeCallbacks[prop][cbRef])\n        delete this.#propChangeCallbacks[prop][cbRef]\n        // this.#propChangeCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Register a change callback for a specific msg.topic\n     * Similar to onChange but more convenient if needing to differentiate by msg.topic.\n     * @example: let otRef = uibuilder.onTopic('mytopic', function(){ console.log('Received a msg with msg.topic=`mytopic`. msg: ', this) })\n     * To cancel a change listener: uibuilder.cancelTopic('mytopic', otRef)\n     *\n     * @param {string} topic The msg.topic we want to listen for\n     * @param {Function} callback The function that will run when an appropriate msg is received. `this` inside the callback as well as the cb's single argument is the received msg.\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelTopic if you need to remove a listener\n     */\n    onTopic(topic, callback) {\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#msgRecvdByTopicCallbacks[topic]) this.#msgRecvdByTopicCallbacks[topic] = { _nextRef: 1 }\n        else this.#msgRecvdByTopicCallbacks[topic]._nextRef++\n\n        const nextCbRef = this.#msgRecvdByTopicCallbacks[topic]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const msgRecvdEvtCallback = this.#msgRecvdByTopicCallbacks[topic][nextCbRef] = function msgRecvdEvtCallback(e) {\n            const msg = e.detail\n            // console.log('[Uib:onTopic:evt] uibuilder:stdMsgReceived where topic matches. ', e.detail)\n            if (msg.topic === topic) {\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(msg, msg)\n            }\n        }\n\n        document.addEventListener('uibuilder:stdMsgReceived', msgRecvdEvtCallback)\n\n        return nextCbRef\n    }\n\n    cancelTopic(topic, cbRef) {\n        document.removeEventListener('uibuilder:stdMsgReceived', this.#msgRecvdByTopicCallbacks[topic][cbRef])\n        delete this.#msgRecvdByTopicCallbacks[topic][cbRef]\n        // this.#msgRecvdCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Trigger event listener for a given property\n     * Called when uibuilder.set is used\n     *\n     * @param {*} prop The property for which to run the callback functions\n     * arguments: Additional arguments contain the value to pass to the event callback (e.g. newValue)\n     */\n    // emit(prop) {\n    //     var evt = this.#events[prop]\n    //     if (!evt) {\n    //         return\n    //     }\n    //     var args = Array.prototype.slice.call(arguments, 1)\n    //     for (var i = 0; i < evt.length; i++) {\n    //         evt[i].apply(this, args)\n    //     }\n    //     log('trace', 'Uib:emit', `${evt.length} listeners run for prop ${prop} `)()\n    // }\n\n    /** Forcibly removes all event listeners from the events array\n     * Use if you need to re-initialise the environment\n     */\n    // clearEventListeners() {\n    //     this.#events = []\n    // } // ---- End of clearEventListeners() ---- //\n\n    /** Clear a single property event listeners\n     * @param {string} prop The property of uibuilder for which we want to clear the event listener\n     */\n    // clearListener(prop) {\n    //     if (this.#events[prop]) delete this.#events[prop]\n    // }\n\n    //#endregion ---------- End of event handling system ---------- //\n\n    //#region ------- General Utility Functions -------- //\n\n    /** Check supplied msg from server for a timestamp - if received, work out & store difference to browser time\n     * @param {object} receivedMsg A message object recieved from Node-RED\n     * @returns {void} Updates self.serverTimeOffset if different to previous value\n     */\n    _checkTimestamp(receivedMsg) {\n        if (Object.prototype.hasOwnProperty.call(receivedMsg, 'serverTimestamp')) {\n            const serverTimestamp = new Date(receivedMsg.serverTimestamp)\n            // @ts-ignore\n            const offset = Math.round(((new Date()) - serverTimestamp) / 3600000) // in ms /3.6m to get hours\n            if (offset !== this.serverTimeOffset) {\n                log('trace', `Uib:checkTimestamp:${this._ioChannels.server} (server)`, `Offset changed to: ${offset} from: ${this.serverTimeOffset}`)()\n                this.set('serverTimeOffset', offset)\n            }\n        }\n    }\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {*} Selected HTML element or null\n     */\n    $(cssSelector) {\n        /** @type {*} Some kind of HTML element */\n        let el = document.querySelector(cssSelector)\n\n        if (!el) {\n            log(1, 'Uib:$', `No element found for CSS selector ${cssSelector}`)()\n            return null\n        }\n\n        if ( el.nodeName === 'TEMPLATE' ) {\n            el = el.content.firstElementChild\n            if (!el) {\n                log(0, 'Uib:$', `Template selected for CSS selector ${cssSelector} but it is empty`)()\n                return null\n            }\n        }\n\n        return el\n    }\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {*} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {Array} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$(cssSelector) {\n        return Array.from(document.querySelectorAll(cssSelector))\n    }\n\n    /** Set the default originator. Set to '' to ignore. Used with uib-sender.\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    setOriginator(originator = '') {\n        this.set('originator', originator)\n    } // ---- End of setOriginator ---- //\n\n    /** HTTP Ping/Keep-alive - makes a call back to uibuilder's ExpressJS server and receives a 204 response\n     * Can be used to keep sessions alive.\n     * @example\n     *   uibuilder.setPing(2000) // repeat every 2 sec. Re-issue with ping(0) to turn off repeat.\n     *   uibuilder.onChange('ping', function(data) {\n     *      console.log('pinger', data)\n     *   })\n     * @param {number} ms Repeat interval in ms\n     */\n    setPing(ms = 0) {\n        const oReq = new XMLHttpRequest()\n        oReq.addEventListener('load', () => {\n            const headers = (oReq.getAllResponseHeaders()).split('\\r\\n')\n            const elapsedTime = Number(new Date()) - Number((oReq.responseURL.split('='))[1])\n            this.set('ping', {\n                success: !!((oReq.status === 201) || (oReq.status === 204)), // true if one of the listed codes else false\n                status: oReq.status,\n                headers: headers,\n                url: oReq.responseURL,\n                elapsedTime: elapsedTime,\n            })\n        })\n\n        if (this.#pingInterval) {\n            clearInterval(this.#pingInterval)\n            this.#pingInterval = undefined\n        }\n\n        oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n        oReq.send()\n\n        if (ms > 0) {\n            this.#pingInterval = setInterval(() => {\n                oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n                oReq.send()\n            }, ms)\n        }\n    } // ---- End of ping ---- //\n\n    log() {\n        log(...arguments)()\n    }\n\n    /** Convert JSON to Syntax Highlighted HTML\n     * @param {object} json A JSON/JavaScript Object\n     * @returns {html} Object reformatted as highlighted HTML\n     */\n    syntaxHighlight(json) {\n        return syntaxHighlight(json)\n    } // --- End of syntaxHighlight --- //\n\n    /** Copies a uibuilder variable to the browser clipboard\n     * @param {string} varToCopy The name of the uibuilder variable to copy to the clipboard\n     */\n    copyToClipboard(varToCopy) {\n        let data = ''\n        try {\n            console.log(this.get(varToCopy), JSON.stringify(this.get(varToCopy)))\n            data = JSON.stringify(this.get(varToCopy))\n        } catch (e) {\n            log('error', 'copyToClipboard', `Could not copy \"${varToCopy}\" to clipboard.`, e.message)()\n        }\n        navigator.clipboard.writeText(data)\n    } // --- End of copyToClipboard --- //\n\n    /** DEPRECATED FOR NOW - wasn't working properly.\n     * Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.\n     * Requires IntersectionObserver (available to all mainstream browsers from early 2019)\n     * Automatically sends a msg back to Node-RED.\n     * Requires the element to already exist.\n     */\n    elementIsVisible() {\n        const info = 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'\n        log('error', 'uib:elementIsVisible', info)()\n        this.send({payload: 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'})\n        return false\n    } // --- End of elementIsVisible --- //\n\n    /** Does the chosen CSS Selector currently exist?\n     * Automatically sends a msg back to Node-RED unless turned off.\n     * @param {string} cssSelector Required. CSS Selector to examine for visibility\n     * @param {boolean} [msg] Optional, default=true. If true also sends a message back to Node-RED\n     * @returns {boolean} True if the element exists\n     */\n    elementExists(cssSelector, msg = true) {\n        const el = document.querySelector(cssSelector)\n\n        let exists = false\n        if (el !== null) exists = true\n\n        if (msg === true) {\n            this.send({\n                payload: exists,\n                info: `Element \"${cssSelector}\" ${exists ? 'exists' : 'does not exist'}`\n            })\n        }\n\n        return exists\n    } // --- End of elementExists --- //\n\n    /** Only keep the URL Hash & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return '#' + url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Set up an event listener to watch for hash changes\n     * and set the watchable urlHash variable\n     */\n    _watchHashChanges() {\n        this.set('urlHash', location.hash)\n        window.addEventListener('hashchange', (event) => {\n            this.set('urlHash', location.hash)\n            if (this.#sendUrlHash === true) {\n                this.send({ topic: 'hashChange', payload: location.hash, newHash: this.keepHashFromUrl(event.newURL), oldHash: this.keepHashFromUrl(event.oldURL) })\n            }\n        })\n    }\n\n    /** Returns true/false or a default value for truthy/falsy and other values\n     * @param {string|number|boolean|*} val The value to test\n     * @param {any} deflt Default value to use if the value is not truthy/falsy\n     * @returns {boolean|any} The truth! Or the default\n     */\n    truthy(val, deflt) {\n        let ret\n        if (['on', 'On', 'ON', 'true', 'True', 'TRUE', '1', true, 1].includes(val)) ret = true\n        else if (['off', 'Off', 'OFF', 'false', 'False', 'FALSE', '0', false, 0].includes(val)) ret = false\n        else ret = deflt\n        return ret\n    }\n\n    /** Turn on/off/toggle sending URL hash changes back to Node-RED\n     * @param {string|number|boolean|undefined} [toggle] Optional on/off/etc\n     * @returns {boolean} True if we will send a msg to Node-RED on a hash change\n     */\n    watchUrlHash(toggle) {\n        this.#sendUrlHash = this.truthy(toggle, this.#sendUrlHash !== true)\n        return this.#sendUrlHash\n    }\n\n    /** Navigate to a new page or a new route (hash)\n     * @param {string} url URL to navigate to. Can be absolute or relative (to current page) or just a hash for a route change\n     * @returns {Location} The new window.location string\n     */\n    navigate(url) {\n        if (url) window.location.href = url\n        return window.location\n    }\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- UI handlers --------- //\n\n    //#region -- Direct to _ui --\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        _ui.ui(json)\n    }\n\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        _ui.replaceSlot(el, component)\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        _ui.replaceSlotMarkdown(el, component)\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        return _ui.convertMarkdown(mdText)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        return _ui.sanitiseHTML(html)\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        _ui.loadScriptSrc(url)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        _ui.loadStyleSrc(url)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        _ui.loadScriptTxt(textFn)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        _ui.loadStyleTxt(textFn)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) {\n        _ui.showDialog(type, ui, msg)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        _ui.loadui(url)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        return _ui.uiGet(cssSelector, propName)\n    }\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     */\n    async include(url, uiOptions) {\n        _ui.include(url, uiOptions)\n    }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} component Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, component) {\n        _ui.uiEnhanceElement(el, component)\n    }\n\n    //#endregion -- direct to _ui --\n\n    /** * Show/hide a display card on the end of the visible HTML that will dynamically display the last incoming msg from Node-RED\n     * The card has the id `uib_last_msg`. Updates are done from a listener set up in the start function.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showMsg(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowMsg\n        this.#isShowMsg = showHide\n        let slot = 'Waiting for a message from Node-RED'\n\n        if (this.msg && Object.keys(this.msg).length > 0) {\n            slot = this.syntaxHighlight(this.msg)\n        }\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_last_msg_wrap',\n                ],\n            })\n        } else {\n            _ui._uiReplace({\n                components: [\n                    {\n                        type: 'div',\n                        id: 'uib_last_msg_wrap',\n                        parent: parent,\n                        attributes: {\n                            title: 'Last message from Node-RED',\n                        },\n                        components: [\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.copyToClipboard(\"msg\")',\n                                    class: 'compact',\n                                    style: 'right:3em;',\n                                },\n                                slot: '\uD83D\uDCCB',\n                            },\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.showMsg()',\n                                    class: 'compact',\n                                    style: 'right:.5em;',\n                                },\n                                slot: '\u26D4',\n                            },\n                            {\n                                type: 'pre',\n                                id: 'uib_last_msg',\n                                // parent: 'uib_last_msg_wrap',\n                                attributes: {\n                                    class: 'syntax-highlight',\n                                },\n                                slot: slot,\n                            },\n                        ],\n                    },\n                ],\n            })\n        }\n\n        return showHide\n    }\n\n    /** Show a browser notification if possible.\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * @example uibuilder.notify( 'My simple message to the user' )\n     * @example uibuilder.notify( {topic: 'My Title', payload: 'My simple message to the user'} )\n     * @example uibuilder.notify( {title: 'My Title', body: 'My simple message to the user'} )\n     * @example // If config.return = true, a promise is returned.\n     * // The resolved promise is only returned if the notification is clicked by the user.\n     * // Can be used to send the response back to Node-RED\n     * uibuilder.notify(notifyConfig).then( res => uibuilder.eventSend(res) )\n     * @ref https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config data or simple message string\n     * @returns {Promise<Event>|null} A promise that resolves to the click event or null\n     */\n    notify(config) {\n        if (config.return) return _ui.notification(config)\n\n        _ui.notification(config)\n            .then( res => { // eslint-disable-line promise/always-return\n                log('info', 'Uib:notification', 'Notification completed event', res)()\n                // if (config.return) return res\n            })\n            .catch( err => {\n                log('error', 'Uib:notification', 'Notification error event', err)()\n            })\n        return null\n    }\n\n    /** Scroll the page\n     * https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollIntoView\n     * @param {string} [cssSelector] Optional. If not set, scrolls to top of page.\n     * @param {{block:(string|undefined),inline:(string|undefined),behavior:(string|undefined)}} [opts] Optional. DOM scrollIntoView options\n     * @returns {boolean} True if element was found, false otherwise\n     */\n    scrollTo(cssSelector, opts) {\n        // @ts-ignore\n        if (!opts) opts = {}\n        if (!cssSelector || cssSelector === 'top'  || cssSelector === 'start') cssSelector = 'body'\n        else if (cssSelector === 'bottom' || cssSelector === 'end') {\n            cssSelector = 'body'\n            opts.block = 'end'\n        }\n        const el = this.$(cssSelector)\n        if (el) {\n            el.scrollIntoView(opts)\n            return true\n        }\n        return false\n    }\n\n    /** Show/hide a display card on the end of the visible HTML that will dynamically display the current status of the uibuilder client\n     * The card has the id `uib_status`.\n     * The display is updated by an event listener created in the class constructor.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showStatus(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowStatus\n        this.#isShowStatus = showHide\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_status',\n                ],\n            })\n            return showHide\n        }\n\n        const root = {\n            components: [\n                {\n                    type: 'div',\n                    id: 'uib_status',\n                    parent: parent,\n                    attributes: {\n                        title: 'Current status of the uibuilder client',\n                        class: 'text-smaller',\n                    },\n                    components: [\n                        {\n                            'type': 'table',\n                            'components': [\n                                {\n                                    'type': 'tbody',\n                                    'components': []\n                                }\n                            ]\n                        }\n                    ]\n                }\n            ]\n        }\n        const details = root.components[0].components[0].components[0].components\n\n        Object.values(this.#showStatus).forEach( entry => {\n            details.push({\n                'type': 'tr',\n                'attributes': {\n                    title: entry.description,\n                },\n                'components': [\n                    {\n                        'type': 'th',\n                        'slot': entry.label,\n                    },\n                    {\n                        'type': 'td',\n                        'attributes': {\n                            'data-varType': entry.var,\n                        },\n                        'slot': entry.var === 'version' ? Uib._meta.version : JSON.stringify(this[entry.var]),\n                    }\n                ],\n            })\n        })\n\n        _ui._uiReplace(root)\n\n        return showHide\n    }\n\n    /** Use the Mutation Observer browser API to watch for changes to a single element on the page.\n     * OMG! It is sooo hard to turn the data into something that successfully serialises so it can be sent back to Node-RED!\n     * NB: Each cssSelector creates a unique watcher. Sending the same selector overwrites the previous one.\n     * @param {string} cssSelector A CSS Selector that selects the element to watch for changes\n     * @param {boolean|\"toggle\"} [startStop] true=start watching the DOM, false=stop. Default='toggle'\n     * @param {boolean} [send] true=Send changes to Node-RED, false=Don't send. Default=true\n     * @param {boolean} [showLog] true=Output changes to log, false=stop. Default=true. Log level is 2 (Info)\n     * @returns {boolean} True if the watch is on, false otherwise\n     */\n    uiWatch(cssSelector, startStop = 'toggle', send = true, showLog = true) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.querySelector(cssSelector)\n        if (!targetNode) {\n            log('warn', 'uibuilder.module.js:uiWatch', `CSS Selector '${cssSelector}' not found.`)()\n            return false\n        }\n\n        if (startStop === 'toggle' || startStop === undefined || startStop === null) {\n            if (this.#uiObservers[cssSelector]) startStop = false\n            else startStop = true\n        }\n\n        // Need a ref to the Uib this\n        const that = this\n\n        if (startStop === true) {\n            // Create an observer instance\n            this.#uiObservers[cssSelector] = new MutationObserver( function( mutationList /* , observer */ ) {\n                const out = []\n\n                mutationList.forEach( mu => {\n                    // console.log({ mu })\n                    const oMu = {\n                        type: mu.type,\n                        oldValue: mu.oldValue !== null ? mu.oldValue : undefined,\n                    }\n\n                    if (mu.addedNodes.length > 0) {\n                        oMu.addedNodes = []\n                        mu.addedNodes.forEach( (an, i) => {\n                            oMu.addedNodes.push(_ui.nodeGet(mu.addedNodes[i]))\n                        })\n                    }\n\n                    if (mu.removedNodes.length > 0) {\n                        oMu.removedNodes = []\n                        mu.removedNodes.forEach( (an, i) => {\n                            oMu.removedNodes.push(_ui.nodeGet(mu.removedNodes[i]))\n                        })\n                    }\n\n                    if ( mu.type === 'attributes' ) {\n                        oMu.attributeName = mu.attributeName\n                        // @ts-ignore\n                        oMu.newValue = mu.target.attributes[mu.attributeName].value\n                    }\n\n                    out.push(oMu)\n                })\n\n                // Custom event\n                that._dispatchCustomEvent('uibuilder:domChange', out)\n                // Send a msg back to node-red\n                if (send === true) {\n                    that.send({\n                        _ui: {\n                            cssSelector: cssSelector,\n                            uiChanges: out\n                        },\n                        topic: that.topic || `DOM Changes for '${cssSelector}'`,\n                    })\n                }\n                // Log to info\n                if (showLog === true) {\n                    log('info', 'uibuilder.module.js:uiWatch', `DOM Changes for '${cssSelector}'`, { uiChanges: out }, { mutationList })()\n                }\n            } )\n\n            // Start observing the target node for configured mutations\n            this.#uiObservers[cssSelector].observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:uiWatch', `Started Watching DOM changes for '${cssSelector}'`)()\n        } else {\n            this.#uiObservers[cssSelector].disconnect()\n            delete this.#uiObservers[cssSelector]\n            log('trace', 'uibuilder.module.js:uiWatch', `Stopped Watching DOM changes for '${cssSelector}'`)()\n        }\n\n        return startStop\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- HTML cache and DOM watch --------- //\n\n    /** Clear the saved DOM from localStorage */\n    clearHtmlCache() {\n        this.removeStore('htmlCache')\n        log('trace', 'uibuilder.module.js:clearHtmlCache', 'HTML cache cleared')()\n    }\n\n    /** Restore the complete DOM (the whole web page) from browser localStorage if available */\n    restoreHtmlFromCache() {\n        // Is the html cached? If so, restore it\n        const htmlCache = this.getStore('htmlCache')\n        if (htmlCache) {\n            const targetNode = document.getElementsByTagName('html')[0]\n            // Restore the entire HTML\n            targetNode.innerHTML = htmlCache\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'Restored HTML from cache')()\n        } else {\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'No cache to restore')()\n        }\n    }\n\n    /** Save the current DOM state to browser localStorage.\n     * localStorage is persistent and so can be recovered even after a browser restart.\n     */\n    saveHtmlCache() {\n        // Save the updated entire HTML in localStorage\n        this.setStore('htmlCache', document.documentElement.innerHTML)\n    }\n\n    /** Use the Mutation Observer browser API to watch for and save changes to the HTML\n     * Once the observer is created, it will be reused.\n     * Sending true or undefined will turn on the observer, false turns it off.\n     * saveHtmlCache is called whenever anything changes in the dom. This allows\n     * users to call restoreHtmlFromCache() on page load if desired to completely reload\n     * to the last saved state.\n     * @param {boolean} startStop true=start watching the DOM, false=stop\n     */\n    watchDom(startStop) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.documentElement\n\n        // Need a ref to the Uib this\n        const that = this\n\n        // Create an observer instance\n        if (!this._htmlObserver) {\n            this._htmlObserver = new MutationObserver( function(/* mutationList, observer */) {\n                // We don't need to know the details - so kill off any outstanding mutation records\n                this.takeRecords()\n                // Save the updated entire HTML in localStorage\n                that.saveHtmlCache()\n            } )\n        }\n\n        if (startStop === true || startStop === undefined) {\n            // Start observing the target node for configured mutations\n            this._htmlObserver.observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:watchDom', 'Started Watching and saving DOM changes')()\n        } else {\n            this._htmlObserver.disconnect()\n            log('trace', 'uibuilder.module.js:watchDom', 'Stopped Watching and saving DOM changes')()\n        }\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- Message Handling (To/From Node-RED) -------- //\n\n    /** Internal send fn. Send a standard or control msg back to Node-RED via Socket.IO\n     * NR will generally expect the msg to contain a payload topic\n     * @param {object} msgToSend The msg object to send.\n     * @param {string} [channel=uiBuilderClient] The Socket.IO channel to use, must be in self.ioChannels or it will be ignored\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    _send(msgToSend, channel, originator = '') {\n        if (channel === null || channel === undefined) channel = this._ioChannels.client\n\n        // Make sure msgToSend is an object\n        if (channel === this._ioChannels.client) {\n            msgToSend = makeMeAnObject(msgToSend, 'payload')\n        } else if (channel === this._ioChannels.control) {\n            msgToSend = makeMeAnObject(msgToSend, 'uibuilderCtrl')\n            if (!Object.prototype.hasOwnProperty.call(msgToSend, 'uibuilderCtrl')) {\n                msgToSend.uibuilderCtrl = 'manual send'\n            }\n            // help remember where this came from as ctrl msgs can come from server or client\n            msgToSend.from = 'client'\n        }\n\n        /** since 2020-01-02 Added _socketId which should be the same as the _socketId on the server */\n        msgToSend._socketId = this._socket.id\n\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n\n        // Add the originator metadata if required\n        if (originator === '' && this.originator !== '') originator = this.originator\n        if (originator !== '') Object.assign(msgToSend, { '_uib': { 'originator': originator } })\n\n        // If the msg does not have a topic - see if we want to add one\n        if ( !Object.prototype.hasOwnProperty.call(msgToSend, 'topic') ) {\n            // From the default (`uibuilder.set('topic', 'some topic')`)\n            if (this.topic !== undefined && this.topic !== '') msgToSend.topic = this.topic\n            else {\n                // Did the last inbound msg have a topic?\n                if ( Object.prototype.hasOwnProperty.call(this, 'msg') && Object.prototype.hasOwnProperty.call(this.msg, 'topic') ) {\n                    msgToSend.topic = this.msg.topic\n                }\n            }\n        }\n\n        // If a standard send & _ui property exists, make sure to add _ui.from = 'client'\n        if (msgToSend._ui) msgToSend._ui.from = 'client'\n\n        // Track how many messages have been sent & last msg sent\n        let numMsgs\n        if (channel === this._ioChannels.client) {\n            this.set('sentMsg', msgToSend)\n            numMsgs = this.set('msgsSent', ++this.msgsSent)\n        } else if (channel === this._ioChannels.control) {\n            this.set('sentCtrlMsg', msgToSend)\n            numMsgs = this.set('msgsSentCtrl', ++this.msgsSentCtrl)\n        }\n        log('trace', 'Uib:_send', ` Channel '${channel}'. Sending msg #${numMsgs}`, msgToSend)()\n\n        this._socket.emit(channel, msgToSend)\n    } // --- End of Send Msg Fn --- //\n\n    /** Send a standard message to NR\n     * @example uibuilder.send({payload:'Hello'})\n     * @param {object} msg Message to send\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    send(msg, originator = '') {\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Send a control msg to NR\n     * @param {object} msg Message to send\n     */\n    sendCtrl(msg) {\n        this._send(msg, this._ioChannels.control)\n    }\n\n    /** Easily send a msg back to Node-RED on a DOM event\n     * @example In plain HTML/JavaScript\n     *    `<button id=\"button1\" name=\"button 1\" data-fred=\"jim\"></button>`\n     *    $('#button1').onclick = (evt) => {\n     *      uibuilder.eventSend(evt)\n     *    }\n     * @example\n     * In VueJS: `<b-button id=\"myButton1\" @click=\"doEvent\" data-something=\"hello\"></b-button>`\n     * In VueJS methods: `doEvent: uibuilder.eventSend,`\n     *\n     * All `data-` attributes will be passed back to Node-RED,\n     *    use them instead of arguments in the click function.\n     *    All target._ui custom properties are also passed back to Node-RED.\n     *\n     * @param {MouseEvent|any} domevent DOM Event object\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    eventSend(domevent, originator = '') { // eslint-disable-line sonarjs/cognitive-complexity\n        // @ts-ignore Handle case where vue messes up `this`\n        if ( this.$attrs ) {\n            log('error', 'Uib:eventSend', '`this` has been usurped by VueJS. Make sure that you wrap the call in a function: `doEvent: function (event) { uibuilder.eventSend(event) },`' )()\n            return\n        }\n        if (!domevent && !event) {\n            log('warn', 'Uib:eventSend', 'Neither the domevent nor the hidden event properties are set. You probably called this function directly rather than applying to an on click event.' )()\n            return\n        }\n        // Handle no argument, e.g. <button onClick=\"uibuilder.eventSend()\"> - event is a hidden variable when fn used in addEventListener\n        if (!domevent || !domevent.constructor) domevent = event\n\n        // The argument must be a DOM event\n        if ((!domevent.constructor.name.endsWith('Event')) || (!domevent.currentTarget)) {\n            log('warn', 'Uib:eventSend', `ARGUMENT NOT A DOM EVENT - use data attributes not function arguments to pass data. Arg Type: ${domevent.constructor.name}`, domevent)()\n            return\n        }\n\n        // Prevent default event action\n        domevent.preventDefault()\n\n        // The target element\n        const target = domevent.currentTarget\n\n        // Get target properties - only shows custom props not element default ones\n        const props = {}\n        Object.keys(target).forEach( key => {\n            if (key.startsWith('_')) return // Exclude private\n            props[key] = target[key]\n        })\n\n        // Attempt to get target attributs - can fail for certain target types\n        const ignoreAttribs = ['class', 'id', 'name']\n        let attribs\n        try {\n            attribs = Object.assign({},\n                ...Array.from(target.attributes,\n                    ( { name, value } ) => {\n                        if ( !ignoreAttribs.includes(name) ) {\n                            return ({ [name]: value })\n                        }\n                        return undefined\n                    }\n                )\n            )\n        } catch (e) {}\n\n        // If target embedded in a form, include the form data\n        let form\n        const frmVals = []\n        if ( target.form ) {\n            form = {}\n            form.valid = target.form.checkValidity()\n            Object.values(target.form).forEach( (frmEl, i) => {\n                const id = frmEl.id !== '' ? frmEl.id : (frmEl.name !== '' ? frmEl.name : `${i}-${frmEl.type}`)\n\n                // We must have both an element id (we may have forced one above) AND\n                // the element type MUST be not undefined - to allow for the extra properties added by frameworks such as Svelte\n                if (id !== '' && frmEl.type) {\n                    // Stupid HTML doesn't use value attrib for checkboxes. So override if value is set to default\n                    if ('checked' in frmEl && frmEl.value === 'on') frmEl.value = frmEl.checked.toString()\n\n                    frmVals.push( { key: id, val: frmEl.value } ) // simplified for addition to msg.payload\n\n                    form[id] = {\n                        'id': frmEl.id,\n                        'name': frmEl.name,\n                        'value': frmEl.value,\n                        'valid': frmEl.checkValidity(),\n                        'type': frmEl.type,\n                    }\n\n                    if (form[id].valid === false) {\n                        const v = frmEl.validity\n                        form[id].validity = {\n                            badInput: v.badInput === true ? v.badInput : undefined,\n                            customError: v.customError === true ? v.customError : undefined,\n                            patternMismatch: v.patternMismatch === true ? v.patternMismatch : undefined,\n                            rangeOverflow: v.rangeOverflow === true ? v.rangeOverflow : undefined,\n                            rangeUnderflow: v.rangeUnderflow === true ? v.rangeUnderflow : undefined,\n                            stepMismatch: v.stepMismatch === true ? v.stepMismatch : undefined,\n                            tooLong: v.tooLong === true ? v.tooLong : undefined,\n                            tooShort: v.tooShort === true ? v.tooShort : undefined,\n                            typeMismatch: v.typeMismatch === true ? v.typeMismatch : undefined,\n                            valueMissing: v.valueMissing === true ? v.valueMissing : undefined,\n                        }\n                    }\n\n                    if (frmEl.dataset) form[id].data = frmEl.dataset\n                }\n            })\n        }\n\n        // Check for CSS Classes\n        let classes\n        try {\n            classes = Array.from(target.classList)\n        } catch (e) {}\n\n        // Each `data-xxxx` attribute is added as a property\n        let payload = { ...target.dataset }\n\n        // Handle Notification events\n        let nprops\n        if ( Object.prototype.toString.call(target) === '[object Notification]') {\n            // Fixed payload for convenience\n            payload = `notification-${target.userAction}`\n            // Capture the notification properties\n            nprops = {\n                // userAction: target.userAction, // uib custom prop: click, close or error\n                actions: target.actions,\n                badge: target.badge,\n                body: target.body,\n                data: target.data,\n                dir: target.dir,\n                icon: target.icon,\n                image: target.image,\n                lang: target.lang,\n                renotify: target.renotify,\n                requireInteraction: target.requireInteraction,\n                silent: target.silent,\n                tag: target.tag,\n                timestamp: target.timestamp,\n                title: target.title,\n                vibrate: target.vibrate,\n            }\n        }\n        // console.log(Object.prototype.toString.call(target))\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            // - this may be an empty Object if no data attributes defined\n            payload: payload,\n\n            _ui: {\n                type: 'eventSend',\n                id: target.id !== '' ? target.id : undefined,\n                name: target.name !== '' ? target.name : undefined,\n                slotText: target.textContent ? target.textContent.substring(0, 255) : undefined,\n\n                form: form,\n                props: props,\n                attribs: attribs,\n                classes: classes,\n\n                notification: nprops,\n\n                event: domevent.type,\n                altKey: domevent.altKey,\n                ctrlKey: domevent.ctrlKey,\n                shiftKey: domevent.shiftKey,\n                metaKey: domevent.metaKey,\n\n                pointerType: domevent.pointerType,\n                nodeName: target.nodeName,\n\n                clientId: this.clientId,\n                pageName: this.pageName,\n                tabId: this.tabId,\n            }\n        }\n\n        if (frmVals.length > 0) {\n            frmVals.forEach( entry => {\n                msg.payload[entry.key] = entry.val\n            })\n        }\n\n        if (domevent.type === 'change') {\n            // Checkboxes don't have a value!!\n            msg._ui.newValue = msg.payload.value = 'checked' in target ? target.checked : domevent.target.value\n        }\n\n        log('trace', 'Uib:eventSend', 'Sending msg to Node-RED', msg)()\n        if (target.dataset && target.dataset.length === 0) log('warn', 'Uib:eventSend', 'No payload in msg. data-* attributes should be used.')()\n\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Easily send the entire DOM/HTML msg back to Node-RED\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     * @param {boolean} [send] If true (default) directly send response to Node-RED. Is false when calling from Node-RED as a command.\n     * @returns {string} The HTML as a string\n     */\n    htmlSend(originator = '', send = true) {\n        const out = `<!doctype html>\\n${document.documentElement.outerHTML}`\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            payload: out,\n            length: out.length,\n            topic: this.topic,\n        }\n\n        log('trace', 'Uib:htmlSend', 'Sending full HTML to Node-RED', msg)()\n\n        if (send === true) this._send(msg, this._ioChannels.client, originator)\n        return out\n    }\n\n    /** Process msg._uib.command - Remember to update #extCommands with new allowed commands\n     * @param {object} msg Msg from Node-RED containing a msg._uib object\n     */\n    _uibCommand(msg) {\n        if (!msg._uib || !msg._uib.command) {\n            log('error', 'uibuilder:_uibCommand', 'Invalid command message received', { msg })()\n            msg.payload = msg.error = 'Invalid command message received'\n            this.send(msg)\n            return\n        }\n        const cmd = msg._uib.command\n        // Disallowed command request outputs error and ignores the msg (NB: Case must match)\n        if (!this.#extCommands.includes(cmd.trim())) {\n            log('error', 'Uib:_uibCommand', `Command '${cmd} is not allowed to be called externally`)()\n            return\n        }\n        const prop = msg._uib.prop\n        const value = msg._uib.value\n        const quiet = msg._uib.quiet ?? false\n        let response, info\n\n        // Don't forget to update `#extCommands`, `docs/client-docs/control-from-node-red.md` & `functions.md`\n        switch (cmd) {\n            case 'elementIsVisible': {\n                response = this.elementIsVisible(prop)\n                // info = `Element \"${prop}\" ${response ? 'is visible' : 'is not visible'}`\n                break\n            }\n\n            case 'elementExists': {\n                response = this.elementExists(prop, false)\n                info = `Element \"${prop}\" ${response ? 'exists' : 'does not exist'}`\n                break\n            }\n\n            case 'get': {\n                response = this.get(prop)\n                break\n            }\n\n            case 'getManagedVarList': {\n                if (prop === 'full') response = this.getManagedVarList()\n                else response = Object.values(this.getManagedVarList())\n                break\n            }\n\n            case 'getWatchedVars': {\n                if (prop === 'full') response = this.getWatchedVars()\n                else response = Object.values(this.getWatchedVars())\n                break\n            }\n\n            case 'htmlSend': {\n                response = this.htmlSend('', false)\n                break\n            }\n\n            case 'include': {\n                // include is async\n                response = _ui.include(prop, value)\n                break\n            }\n\n            case 'navigate': {\n                let newUrl\n                if (prop) newUrl = prop\n                else if (value) newUrl = value\n                response = this.navigate(newUrl)\n                break\n            }\n\n            case 'scrollTo': {\n                response = this.scrollTo(prop, value)\n                break\n            }\n\n            case 'set': {\n                let store = false\n                let autoload = false\n                if (msg._uib.options && msg._uib.options.store) {\n                    if (msg._uib.options.store === true) store = true\n                    if (msg._uib.options.autoload === true) autoload = true\n                }\n                response = this.set(prop, value, store, autoload)\n                break\n            }\n\n            case 'showMsg': {\n                response = this.showMsg(value, prop)\n                break\n            }\n\n            case 'showStatus': {\n                response = this.showStatus(value, prop)\n                break\n            }\n\n            case 'uiGet': {\n                response = _ui.uiGet(prop, value)\n                break\n            }\n\n            case 'uiWatch': {\n                response = this.uiWatch(prop)\n                break\n            }\n\n            case 'watchUrlHash': {\n                response = this.watchUrlHash(prop)\n                break\n            }\n\n            default: {\n                log('warning', 'Uib:_uibCommand', `Command '${cmd}' not yet implemented`)()\n                break\n            }\n        }\n\n        if (quiet !== true) {\n            if (response === undefined) {\n                response = `'${prop}' is undefined`\n            }\n            if (Object(response).constructor === Promise) {\n                // response = `'${cmd} ${prop}' submitted. Cmd is async, no response available`\n                response\n                    .then( (/** @type {any} */ data) => {\n                        msg.payload = msg._uib.response = data\n                        msg.info = msg._uib.info = info\n                        if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                        this.send(msg)\n                        return true\n                    })\n                    .catch( err => {\n                        log(0, 'Uib:_uibCommand', 'Error: ', err)()\n                    })\n            } else {\n                msg.payload = msg._uib.response = response\n                msg.info = msg._uib.info = info\n                if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                this.send(msg)\n            }\n        }\n    } // --- end of _uibCommand ---\n\n    /** Do we want to process something? Check pageName, clientId, tabId. Defaults to yes.\n     * @param {*} obj Either a msg._ui or msg._uib object to check\n     * @returns {boolean} True if we should process the inbound _ui/_uib msg, false if not.\n     */\n    _forThis(obj) {\n        let r = true\n\n        // Is this msg for this pageName?\n        if (obj.pageName && obj.pageName !== this.pageName) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this page')()\n            r = false\n        }\n\n        // Is this msg for this clientId?\n        if (obj.clientId && obj.clientId !== this.clientId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this clientId')()\n            r = false\n        }\n\n        // Is this msg for this tabId?\n        if (obj.tabId && obj.tabId !== this.tabId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this tabId')()\n            r = false\n        }\n\n        return r\n    }\n\n    // Handle received messages - Process some msgs internally, emit specific events on document that make it easy for coders to use\n    _msgRcvdEvents(msg) {\n        // Message received\n        this._dispatchCustomEvent('uibuilder:stdMsgReceived', msg)\n\n        // Topic\n        if ( msg.topic ) this._dispatchCustomEvent(`uibuilder:msg:topic:${msg.topic}`, msg)\n\n        // Handle msg._uib special requests\n        if (msg._uib) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._uib)) return\n\n            /** Process a client reload request from Node-RED - as the page is reloaded, everything else is ignored\n             * Note that msg._ui.reload is also actioned via the _ui processing below */\n            if (msg._uib.reload === true) {\n                log('trace', 'Uib:_msgRcvdEvents:_uib:reload', 'reloading')()\n                location.reload()\n                return\n            }\n\n            // Process msg._uib.command messages - allows Node-RED to run uibuilder FE functions\n            if (msg._uib.command) {\n                this._uibCommand(msg)\n                return\n            }\n\n            // Better to request via msg._ui - these are for backwards compatibility\n            if ( msg._uib.componentRef === 'globalNotification' ) {\n                _ui.showDialog('notify', msg._uib.options, msg)\n            }\n            if ( msg._uib.componentRef === 'globalAlert' ) {\n                _ui.showDialog('alert', msg._uib.options, msg)\n            }\n        }\n\n        // Handle msg._ui requests\n        if ( msg._ui ) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._ui)) return\n\n            log('trace', 'Uib:_msgRcvdEvents:_ui', 'Calling _uiManager')()\n            this._dispatchCustomEvent('uibuilder:msg:_ui', msg)\n            _ui._uiManager(msg)\n        }\n    } // --- end of _msgRcvdEvents ---\n\n    /** Callback handler for messages from Node-RED\n     * NOTE: `this` is the class here rather the `socket` as would be normal since we bind the correct `this` in the call.\n     *       Use this._socket if needing reference to the socket.\n     * @callback ioSetupFromServer Called from ioSetup/this._socket.on(this.#ioChannels.server, this.stdMsgFromServer.bind(this))\n     * @param {object} receivedMsg The msg object from Node-RED\n     * @this Uib\n     */\n    _stdMsgFromServer(receivedMsg) {\n\n        // Make sure that msg is an object & not null\n        receivedMsg = makeMeAnObject(receivedMsg, 'payload')\n\n        // Don't process if the inbound msg is not for us\n        if (receivedMsg._uib && !this._forThis(receivedMsg._uib)) return\n        if (receivedMsg._ui && !this._forThis(receivedMsg._ui)) return\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedMsg)\n\n        // Track how many messages have been received\n        this.set('msgsReceived', ++this.msgsReceived)\n\n        // Emit specific document events on msg receipt that make it easy for coders to use\n        this._msgRcvdEvents(receivedMsg)\n\n        if ( !('_ui' in receivedMsg && !('payload' in receivedMsg)) ) {\n            // Save the msg for further processing\n            this.set('msg', receivedMsg)\n        }\n\n        log('info', 'Uib:ioSetup:stdMsgFromServer', `Channel '${this._ioChannels.server}'. Received msg #${this.msgsReceived}.`, receivedMsg)()\n\n        // ! NOTE: Don't try to handle specialist messages here. See _msgRcvdEvents.\n\n    } // -- End of websocket receive DATA msg from Node-RED -- //\n\n    /** Handles original control msgs (not to be confused with \"new\" msg._uib controls)\n     * @param {*} receivedCtrlMsg The msg received on the socket.io control channel\n     */\n    _ctrlMsgFromServer(receivedCtrlMsg) {\n\n        // Make sure that msg is an object & not null\n        if (receivedCtrlMsg === null) {\n            receivedCtrlMsg = {}\n        } else if (typeof receivedCtrlMsg !== 'object') {\n            const msg = {}\n            msg['uibuilderCtrl:' + this._ioChannels.control] = receivedCtrlMsg\n            receivedCtrlMsg = msg\n        }\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedCtrlMsg)\n\n        this.set('ctrlMsg', receivedCtrlMsg)\n        this.set('msgsCtrlReceived', ++this.msgsCtrlReceived)\n\n        log('trace', 'Uib:ioSetup:_ctrlMsgFromServer', `Channel '${this._ioChannels.control}'. Received control msg #${this.msgsCtrlReceived}`, receivedCtrlMsg)()\n\n        /** Process control msg types */\n        switch (receivedCtrlMsg.uibuilderCtrl) {\n            // Node-RED is shutting down\n            case 'shutdown': {\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, '\u274C Received \"shutdown\" from server')()\n                this.set('serverShutdown', undefined)\n                break\n            }\n\n            /** We are connected to the server - 1st msg from server */\n            case 'client connect': {\n                log('trace', `Uib:ioSetup:${this._ioChannels.control}`, 'Received \"client connect\" from server')()\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, `\u2705 Server connected. Version: ${receivedCtrlMsg.version}\\nServer time: ${receivedCtrlMsg.serverTimestamp}, Sever time offset: ${this.serverTimeOffset} hours`)()\n\n                if ( !Uib._meta.version.startsWith(receivedCtrlMsg.version.split('-')[0]) ) {\n                    log('warn', `Uib:ioSetup:${this._ioChannels.control}`, `Server version (${receivedCtrlMsg.version}) not the same as the client version (${Uib._meta.version})`)()\n                }\n\n                if (this.autoSendReady === true) { // eslint-disable-line no-lonely-if\n                    log('trace', `Uib:ioSetup:${this._ioChannels.control}/client connect`, 'Auto-sending ready-for-content/replay msg to server')\n                    // @since 0.4.8c Add cacheControl property for use with node-red-contrib-infocache\n                    // @since 6.1.0 Don't bother, we use the \"client connect\" msg\n                    // this._send({\n                    //     'uibuilderCtrl': 'ready for content',\n                    //     'cacheControl': 'REPLAY',\n                    // }, this._ioChannels.control)\n                }\n\n                break\n            }\n\n            default: {\n                log('trace', `uibuilderfe:ioSetup:${this._ioChannels.control}`, `Received ${receivedCtrlMsg.uibuilderCtrl} from server`)\n                // Anything else to do for other control msgs?\n            }\n\n        } // ---- End of process control msg types ---- //\n\n    } // -- End of websocket receive CONTROL msg from Node-RED -- //\n\n    /** Send log text to uibuilder's beacon endpoint (works even if socket.io not connected)\n     * @param {string} txtToSend Text string to send\n     * @param {string|undefined} logLevel Log level to use. If not supplied, will default to debug\n     */\n    beaconLog(txtToSend, logLevel) {\n        if (!logLevel) logLevel = 'debug'\n        navigator.sendBeacon('./_clientLog', `${logLevel}::${txtToSend}`)\n    }\n\n    /** Send log info back to Node-RED over uibuilder's websocket control output (Port #2)\n     * @param {...*} arguments All arguments passed to the function are added to the msg.payload\n     */\n    logToServer() {\n        this.sendCtrl({\n            uibuilderCtrl: 'client log message',\n            payload: arguments,\n            // \"version\":\"6.1.0-iife.min\",\n            _socketId: this._socket.id,\n            // \"ip\":\"::1\",\n            clientId: this.clientId,\n            tabId: this.tabId,\n            // \"url\":\"esp-test\",\n            pageName: this.pageName,\n            connections: this.connectedNum,\n            lastNavType: this.lastNavType,\n        })\n    }\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Socket.IO -------- //\n\n    /** Return the Socket.IO namespace\n     * The cookie method is the most reliable but this falls back to trying to work it\n     * out from the URL if cookies not available. That won't work if page is in a sub-folder.\n     * since 2017-10-21 Improve method to cope with more complex paths - thanks to Steve Rickus @shrickus\n     * since 2017-11-10 v1.0.1 Check cookie first then url. cookie works even if the path is more complex (e.g. sub-folder)\n     * since 2020-01-25 Removed httpRoot from namespace to prevent proxy induced errors\n     * @returns {string} Socket.IO namespace\n     */\n    _getIOnamespace() {\n\n        let ioNamespace\n\n        /** Try getting the namespace cookie. */\n        ioNamespace = this.cookies['uibuilder-namespace']\n\n        // if it wasn't available, try using the current url path\n        if (ioNamespace === undefined || ioNamespace === '') {\n            // split url path & eliminate any blank elements, and trailing or double slashes\n            const u = window.location.pathname.split('/')\n                .filter(function (t) { return t.trim() !== '' })\n\n            /** since v2.0.5 Extra check for 0 length, Issue #73. since 2017-11-06 If the last element of the path is an .html file name, remove it */\n            if (u.length > 0 && (u[u.length - 1].endsWith('.html'))) u.pop()\n\n            // Get the last part of the url path, this MUST match the namespace in uibuilder\n            ioNamespace = u.pop()\n\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via url path: ${ioNamespace}`)()\n        } else {\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via cookie: ${ioNamespace}`)()\n        }\n\n        this.url = ioNamespace\n        // Namespace HAS to start with a /\n        ioNamespace = '/' + ioNamespace\n\n        log('trace', 'uibuilder.module.js:getIOnamespace', `Final Socket.IO namespace: ${ioNamespace}`)()\n\n        return ioNamespace\n    } // --- End of set IO namespace --- //\n\n    /** Function used to check whether Socket.IO is connected to the server, reconnect if not (recursive)\n     * @param {number} [delay] Initial delay before checking (ms). Default=2000ms\n     * @param {number} [factor] Multiplication factor for subsequent checks (delay*factor). Default=1.5\n     * @param {number} [depth] Recursion depth\n     * @returns {boolean|undefined} Whether or not Socket.IO is connected to uibuilder in Node-RED\n     */\n    _checkConnect(delay, factor, depth = 1) {\n        if ( navigator.onLine === false ) return // Don't bother if we know we are offline\n\n        if (!delay) delay = this.retryMs\n        if (!factor) factor = this.retryFactor\n\n        log('trace', 'Uib:checkConnect', `Checking connection. Connected: ${this._socket.connected}. Timer: ${this.#timerid}. Depth: ${depth}. Delay: ${delay}. Factor: ${factor}`, this._socket)()\n\n        // If we are connected ...\n        if (this._socket.connected === true) {\n            // Clear the setTimeout\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this.set('ioConnected', true)\n            this.set('socketError', null)\n            return true\n        }\n\n        // ... we aren't connected so:\n        this.set('ioConnected', false)\n\n        // we only want one running at a time\n        if (this.#timerid) window.clearTimeout(this.#timerid)\n\n        // Create the new timer\n        this.#timerid = window.setTimeout(() => {\n            log('warn', 'Uib:checkConnect:setTimeout', `Socket.IO reconnection attempt. Current delay: ${delay}. Depth: ${depth}`)()\n\n            // this is necessary sometimes when the socket fails to connect on startup\n            this._socket.close()\n\n            // Try to reconnect\n            this._socket.connect()\n\n            // don't need to check whether we have connected as the timer will have been cleared if we have\n            this.#timerid = null\n\n            // @ts-ignore Create new timer for next time round with extended delay\n            this._checkConnect(delay * factor, factor, depth++)\n        }, delay)\n\n        return false\n    } // --- End of checkConnect Fn--- //\n\n    // See message handling section for msg receipt handlers\n\n    /** Called by _ioSetup when Socket.IO connects to Node-RED */\n    _onConnect() {\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n        log('info', 'Uib:ioSetup', `\u2705 SOCKET CONNECTED. Connection count: ${this.connectedNum}, Is a Recovery?: ${this._socket.recovered}. \\nNamespace: ${this.ioNamespace}`)()\n        this._dispatchCustomEvent('uibuilder:socket:connected', { 'numConnections': this.connectedNum, 'isRecovery': this._socket.recovered })\n\n        this._checkConnect() // resets any reconnection timers & sets connected flag\n    }\n\n    /** Called by _ioSetup when Socket.IO disconnects from Node-RED\n     * @param {string} reason Disconnection title\n     */\n    _onDisconnect(reason) {\n        // reason === 'io server disconnect' - redeploy of Node instance\n        // reason === 'transport close' - Node-RED terminating\n        // reason === 'ping timeout' - didn't receive a pong response?\n        log('info', 'Uib:ioSetup:socket-disconnect', `\u26D4 Socket Disconnected. Reason: ${reason}`)()\n\n        this._dispatchCustomEvent('uibuilder:socket:disconnected', reason)\n\n        /** A workaround for SIO's failure to reconnect after a disconnection */\n        this._checkConnect()\n    }\n\n    /** Setup Socket.io\n     * since v2.0.0-beta2 Moved to a function and called by the user (uibuilder.start()) so that namespace & path can be passed manually if needed\n     * @returns {boolean} Attaches socket.io manager to self._socket and updates self.ioNamespace & self.ioPath as needed\n     */\n    _ioSetup() {\n\n        // Just a notification, actual load is done outside the class (see start of file)\n        if (io === undefined) {\n            log('error', 'Uib:ioSetup', 'Socket.IO client not loaded, Node-RED comms will not work')()\n            return false\n        }\n\n        // If socket is already set up, close it and remove all of the listeners\n        if (this._socket) {\n            log('trace', 'Uib:ioSetup', 'Removing listeners in preparation for redoing Socket.IO connections')()\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this._socket.close()\n            this._socket.offAny()\n            this._socket = undefined\n            this.set('ioConnected', false)\n        }\n\n        // Update the URL path to make sure we have the right one\n        this.socketOptions.path = this.ioPath\n\n        // NOTE: this._socket.auth is now set by callback and so automatically updated for each client (re)connection. No need to set here\n\n        // Create the socket - make sure client uses Socket.IO version from the uibuilder module (using path)\n        log('trace', 'Uib:ioSetup', `About to create IO object. Transports: [${this.socketOptions.transports.join(', ')}]`)()\n        this._socket = io(this.ioNamespace, this.socketOptions)\n\n        /** When the socket is connected - set ioConnected flag and reset connect timer  */\n        this._socket.on('connect', this._onConnect.bind(this))\n\n        // RECEIVE a STANDARD, non-control msg from Node-RED server\n        this._socket.on(this._ioChannels.server, this._stdMsgFromServer.bind(this))\n\n        // RECEIVE a CONTROL msg from Node-RED server - see also sendCtrl()\n        this._socket.on(this._ioChannels.control, this._ctrlMsgFromServer.bind(this))\n\n        // When the socket is disconnected ..............\n        this._socket.on('disconnect', this._onDisconnect.bind(this))\n\n        // Socket.io connection error - probably the wrong ioPath - or client is offline\n        this._socket.on('connect_error', (err) => {\n            if ( navigator.onLine === false ) return // Don't bother with an error if we know we are offline\n            log('error', 'Uib:ioSetup:connect_error', `\u274C Socket.IO Connect Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket connect error processing ---\n\n        // Socket.io error - from the server (socket.use middleware triggered an error response)\n        this._socket.on('error', (err) => {\n            log('error', 'Uib:ioSetup:error', `\u274C Socket.IO Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket error processing ---\n\n        // Ensure we are connected, retry if not\n        this._checkConnect()\n\n        return true\n\n        /* We really don't need these, just for interest\n            self._socket.io.on('packet', function onPacket(data){\n                // we get one of these for each REAL msg (not ping/pong)\n                console.debug('PACKET', data)\n            })\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n                //console.dir(self._socket)\n            }) // --- End of socket pong processing ---\n            self._socket.io.on('packet', function(data){\n                // We get one of these for actual messages, not ping/pong\n                console.debug('PACKET', data)\n            })\n            self._socket.on('connect_timeout', function(timeout) {\n                console.debug('SOCKET CONNECT TIMEOUT - Namespace: ' + ioNamespace + ', Timeout: ' + timeout)\n            }) // --- End of socket connect timeout processing ---\n            self._socket.on('reconnect', function(attemptNum) {\n                console.debug('SOCKET RECONNECTED - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect processing ---\n            self._socket.on('reconnect_attempt', function(attemptNum) {\n                console.debug('SOCKET RECONNECT ATTEMPT - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect_attempt processing ---\n            self._socket.on('reconnecting', function(attemptNum) {\n                console.debug('SOCKET RECONNECTING - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnecting processing ---\n            self._socket.on('reconnect_error', function(err) {\n                console.debug('SOCKET RECONNECT ERROR - Namespace: ' + ioNamespace + ', Reason: ' + err.message)\n                //console.dir(err)\n            }) // --- End of socket reconnect_error processing ---\n            self._socket.on('reconnect_failed', function() {\n                console.debug('SOCKET RECONNECT FAILED - Namespace: ' + ioNamespace)\n            }) // --- End of socket reconnect_failed processing ---\n            self._socket.on('ping', function() {\n                console.debug('SOCKET PING')\n            }) // --- End of socket ping processing ---\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n            }) // --- End of socket pong processing ---\n            */\n    } // ---- End of ioSetup ---- //\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Class construction & startup method -------- //\n\n    constructor() {\n        log('trace', 'Uib:constructor', 'Starting')()\n\n        // Track whether the client is online or offline\n        window.addEventListener('offline', (e) => {\n            this.set('online', false)\n            this.set('ioConnected', false)\n            log('warn', 'Browser', 'DISCONNECTED from network')()\n        })\n        window.addEventListener('online', (e) => {\n            this.set('online', true)\n            log('warn', 'Browser', 'Reconnected to network')()\n            this._checkConnect()\n        })\n\n        document.cookie.split(';').forEach((c) => {\n            const splitC = c.split('=')\n            this.cookies[splitC[0].trim()] = splitC[1]\n        })\n\n        /** Client ID set by uibuilder - lasts until browser profile is closed, applies to all tabs */\n        this.set('clientId', this.cookies['uibuilder-client-id'])\n        log('trace', 'Uib:constructor', 'Client ID: ', this.clientId)()\n\n        /** Tab ID - lasts while the tab is open (even if reloaded)\n         * WARNING: Duplicating a tab retains the same tabId\n         */\n        this.set('tabId', window.sessionStorage.getItem('tabId'))\n        if (!this.tabId) {\n            this.set('tabId', `t${Math.floor(Math.random() * 1000000)}`)\n            window.sessionStorage.setItem('tabId', this.tabId)\n        }\n\n        // document.addEventListener('pagehide', (event) => {\n        //     // console.log(`pagehide. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pagehide. From Cache?: ${event.persisted}`)\n        // })\n        // document.addEventListener('pageshow', (event) => {\n        //     // console.log(`pageshow. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pageshow. From Cache?: ${event.persisted}`)\n        // })\n        document.addEventListener('load', () => {\n            this.set('isVisible', true)\n        })\n        document.addEventListener('visibilitychange', () => {\n            // hidden=unload, minimise. visible=un-minimise (not fired on load)\n            this.set('isVisible', document.visibilityState === 'visible')\n            this.sendCtrl({ uibuilderCtrl: 'visibility', isVisible: this.isVisible })\n            // navigator.userActivation is experimental Chromium only\n            // console.log('visibilitychange', ':', `Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n            // navigator.sendBeacon('./_clientLog', `${(new Date()).toISOString()} Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n        })\n\n        // Set a listener to update showStatus table if it is active\n        document.addEventListener('uibuilder:propertyChanged', (event) => {\n            if (!this.#isShowStatus) return\n\n            // @ts-ignore\n            if (event.detail.prop in this.#showStatus) {\n                // @ts-ignore\n                document.querySelector(`td[data-vartype=\"${event.detail.prop}\"]`).innerText = JSON.stringify(event.detail.value)\n            }\n        })\n\n        this.set('ioNamespace', this._getIOnamespace())\n\n        //#region - Try to make sure client uses Socket.IO client version from the uibuilder module (using cookie or path) @since v2.0.0 2019-02-24 allows for httpNodeRoot\n\n        /** httpNodeRoot (to set path) */\n        if ('uibuilder-webRoot' in this.cookies) {\n            this.set('httpNodeRoot', this.cookies['uibuilder-webRoot'])\n            log('trace', 'Uib:constructor', `httpNodeRoot set by cookie to \"${this.httpNodeRoot}\"`)()\n        } else {\n            // split current url path, eliminate any blank elements and trailing or double slashes\n            const fullPath = window.location.pathname.split('/').filter(function (t) { return t.trim() !== '' })\n            /** handle url includes file name - @since v2.0.5 Extra check for 0 length, Issue #73. */\n            if (fullPath.length > 0 && fullPath[fullPath.length - 1].endsWith('.html')) fullPath.pop()\n            fullPath.pop() // gives the last path section of the url\n            this.set('httpNodeRoot', `/${fullPath.join('/')}`)\n            log('trace', '[Uib:constructor]', `httpNodeRoot set by URL parsing to \"${this.httpNodeRoot}\". NOTE: This may fail for pages in sub-folders.`)()\n        }\n        this.set('ioPath', urlJoin(this.httpNodeRoot, Uib._meta.displayName, 'vendor', 'socket.io'))\n        log('trace', 'Uib:constructor', `ioPath: \"${this.ioPath}\"`)()\n\n        //#endregion\n\n        // Work out pageName\n        this.set('pageName', window.location.pathname.replace(`${this.ioNamespace}/`, ''))\n        if ( this.pageName.endsWith('/') ) this.set('pageName', `${this.pageName}index.html`)\n        if ( this.pageName === '' ) this.set('pageName', 'index.html')\n\n        // Attempt to restore autoload variables\n        try {\n            const autoloadVars = this.getStore('_uibAutoloadVars')\n            if (Object.keys(autoloadVars).length > 0) {\n                Object.keys(autoloadVars).forEach( (id) => {\n                    this.set(id, this.getStore(id))\n                })\n            }\n        } catch (e) {}\n\n        this._dispatchCustomEvent('uibuilder:constructorComplete')\n\n        log('trace', 'Uib:constructor', 'Ending')()\n    }\n\n    /** Start up Socket.IO comms and listeners\n     * This has to be done separately because if running from a web page in a sub-folder of src/dist, uibuilder cannot\n     * necessarily work out the correct ioPath to use.\n     * Also, if cookies aren't permitted in the browser, both ioPath and ioNamespace may need to be specified.\n     * @param {object} [options] The start options object.\n     * @returns {void}\n     */\n    start(options) {\n        log('trace', 'Uib:start', 'Starting')()\n\n        // Cancel the msg event handler if already present\n        if ( this.#MsgHandler ) this.cancelChange('msg', this.#MsgHandler)\n\n        if (this.started === true) {\n            log('info', 'Uib:start', 'Start function already called. Resetting Socket.IO and msg handler.')()\n        }\n\n        log('log', 'Uib:start', 'Cookies: ', this.cookies, `\\nClient ID: ${this.clientId}`)()\n        log('trace', 'Uib:start', 'ioNamespace: ', this.ioNamespace, `\\nioPath: ${this.ioPath}`)()\n\n        // Handle options\n        if (options) {\n            if (options.ioNamespace !== undefined && options.ioNamespace !== null && options.ioNamespace !== '') this.set('ioNamespace', options.ioNamespace)\n            if (options.ioPath !== undefined && options.ioPath !== null && options.ioPath !== '') this.set('ioPath', options.ioPath)\n            // See below for handling of options.loadStylesheet\n        }\n\n        // Do we need to load styles?\n        if ( document.styleSheets.length >= 1 || (document.styleSheets.length === 1 && document.styleSheets[0].cssRules.length === 0) ) {\n            log('info', 'Uib:start', 'Styles already loaded so not loading uibuilder default styles.')()\n        } else {\n            if (options && options.loadStylesheet === false) log('info', 'Uib:start', 'No styles loaded & options.loadStylesheet === false.')()\n            else {\n                log('info', 'Uib:start', 'No styles loaded, loading uibuilder default styles.')()\n                this.loadStyleSrc(`${this.httpNodeRoot}/uibuilder/uib-brand.min.css`)\n            }\n        }\n\n        /** Handle specialist messages like reload and _ui -> Moved to _msgRcvdEvents */\n\n        // Track last browser navigation type: navigate, reload, back_forward, prerender\n        const [entry] = performance.getEntriesByType('navigation')\n        // @ts-ignore\n        this.set('lastNavType', entry.type)\n\n        // Start up (or restart) Socket.IO connections and listeners. Returns false if io not found\n        this.set('started', this._ioSetup())\n\n        if ( this.started === true ) {\n            log('trace', 'Uib:start', 'Start completed. Socket.IO client library loaded.')()\n        } else {\n            log('error', 'Uib:start', 'Start completed. ERROR: Socket.IO client library NOT LOADED.')()\n        }\n\n        // Watch for URL hash changes in case using a front-end router. Updates watched var `urlHash` and socket.io `auth.urlHash`\n        this._watchHashChanges()\n\n        // Check if Vue is present (used for dynamic UI processing)\n        if (window['Vue']) {\n            this.set('isVue', true)\n            try {\n                this.set('vueVersion', window['Vue'].version)\n            } catch (e) { }\n            log('trace', 'Uib:start', `VueJS is loaded. Version: ${this.vueVersion}`)()\n        } else {\n            log('trace', 'Uib:start', 'VueJS is not loaded.')()\n        }\n\n        // Check if DOMPurify library is loaded\n        if (window['DOMPurify']) {\n            this.set('purify', true)\n            log('trace', 'Uib:start', 'DOMPurify is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'DOMPurify is not loaded.')()\n        }\n        // Check if Markdown-IT library is loaded\n        if (window['markdownit']) {\n            this.set('markdown', true)\n            log('trace', 'Uib:start', 'Markdown-IT is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'Markdown-IT is not loaded.')()\n        }\n\n        // if (window['DOMPurify']) {\n        //     this.set('purify', true)\n        //     log('trace', 'Uib:start', 'DOMPurify is loaded.')\n        // } else {\n        //     log('trace', 'Uib:start', 'DOMPurify is not loaded.')\n        // }\n\n        // Set up msg listener for the optional showMsg\n        this.onChange('msg', (msg) => {\n            if (this.#isShowMsg === true) {\n                const eMsg = document.getElementById('uib_last_msg')\n                if (eMsg) eMsg.innerHTML = this.syntaxHighlight(msg)\n            }\n        })\n\n        this._dispatchCustomEvent('uibuilder:startComplete')\n    }\n\n    //#endregion -------- ------------ -------- //\n} // ==== End of Class Uib ====\n\n//#region --- Wrap up - get things started ---\n\n// Create an instance (we will only ever want one)\nconst uibuilder = new Uib()\n\n// Assign reference to the instance to the global `window` object\n// Only useful if loading via <script> tag - prefer loading via `import uibuilder from ...`\nif (!window['uibuilder']) {\n    window['uibuilder'] = uibuilder\n} else {\n    log('error', 'uibuilder.module.js', '`uibuilder` already assigned to window. Have you tried to load it more than once?')\n}\nif (!window['uib']) {\n    window['uib'] = uibuilder\n} else {\n    log('warn', 'uibuilder.module.js', '`uib` shortcut already assigned to window.')\n}\n\n// Assign `$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$`.\nif (!window['$']) {\n    /** @type {HTMLElement} */\n    window['$'] = window['uibuilder'].$ // document.querySelector.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` instead.')\n}\n// Assign `$$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$$']) {\n    /** @type {HTMLElement} */\n    window['$$'] = window['uibuilder'].$$ // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` instead.')\n}\n\n// Can import as `import uibuilder from ...` OR `import {uibuilder} from ...`\nexport { uibuilder }\nexport default uibuilder\n\n// Attempt to run start fn\nuibuilder.start()\n\n// Add the class as a new Custom Element to the window object\ncustomElements.define('uib-var', UibVar)\n\n//#endregion --- Wrap up ---\n\n// EOF\n", "/** A zero dependency web component that will display a managed uibuilder variable.\n *\n * Version: 0.0.1 2023-10-07\n *\n * ToDo:\n * -\n */\n/*\n  Copyright (c) 2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n// const template = document.createElement('template')\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<link type=\"text/css\" rel=\"stylesheet\" href=\"\"../uibuilder/uib-brand.min.css\"\" media=\"all\"><span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`\n// {/* <style>@import url(\"../uibuilder/uib-brand.min.css\");</style><span></span> */}\n// `\n\nexport default class UibVar extends HTMLElement {\n    //#region --- Class Properties ---\n    /** @type {string} Name of the uibuilder mangaged variable to use */\n    variable\n    /** Current value of the watched variable */\n    value\n    /** Whether to output if the variable is undefined */\n    undefined = false\n    /** Whether to send update value to Node-RED on change */\n    report = false\n    /** What is the value type */\n    type = 'plain'\n    /** what are the available types? */\n    types = ['plain', 'html', 'markdown', 'object']\n\n    /** Mini jQuery-like shadow dom selector (see constructor) */\n    $\n    \n    /** Holds a count of how many instances of this component are on the page */\n    static _iCount = 0\n    /** @type {Array<string>} List of all of the html attribs (props) listened to */\n    static props = ['name', 'id', 'variable', 'undefined', 'report', 'type']\n    //#endregion --- Class Properties ---\n\n    constructor() {\n        super()\n        this.shadow = this.attachShadow({ mode: 'open', delegatesFocus: true })\n            // .append(template.content.cloneNode(true))\n\n        this.$ = this.shadowRoot.querySelector.bind(this.shadowRoot)\n\n        // Apply external styles to the shadow dom\n        this.css = document.createElement(\"link\")\n        this.css.setAttribute(\"type\", \"text/css\")\n        this.css.setAttribute(\"rel\", \"stylesheet\")\n        this.css.setAttribute(\"href\", \"../uibuilder/uib-brand.min.css\")\n\n        this.dispatchEvent(new Event(`uib-var:construction`, { bubbles: true, composed: true }))\n    }\n\n    // Makes HTML attribute change watched\n    static get observedAttributes() {\n        return UibVar.props\n    }\n\n    /** NOTE: On initial startup, this is called for each watched attrib set in HTML - BEFORE connectedCallback is called  */\n    attributeChangedCallback(attrib, oldVal, newVal) {\n        if ( oldVal === newVal ) return\n\n        switch (attrib) {\n            case 'variable': {\n                if (newVal === '') throw new Error('[uib-var] Attribute \"variable\" MUST be set to a UIBUILDER managed variable name')\n                this.variable = newVal\n                this.doWatch()\n                break\n            }\n            case 'undefined': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.undefined = true\n                else this.undefined = false\n                break\n            }\n            case 'report': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.report = true\n                else this.report = false\n                break\n            }\n            case 'type': {\n                if (newVal === '' || !this.types.includes(newVal.toLowerCase())) this.type = 'plain'\n                else this.type = newVal\n                break\n            }\n\n            default: {\n                this[attrib] = newVal\n                break\n            }\n        }\n    } // --- end of attributeChangedCallback --- //\n\n    // Runs when an instance is added to the DOM\n    connectedCallback() {\n        // Make sure instance has an ID. Create an id from name or calculation if needed\n        if (!this.id) {\n            if (!this.name) this.name = this.getAttribute('name')\n            if (this.name) this.id = this.name.toLowerCase().replace(/\\s/g, '_')\n            else this.id = `uib-var-${++UibVar._iCount}`\n        }\n    }  // ---- end of connectedCallback ---- //\n\n    // Runs when an instance is removed from the DOM\n    // disconnectedCallback() {} // ---- end of disconnectedCallback ---- //\n\n    /** Process changes to the required uibuilder variable */\n    doWatch() {\n        if (!this.variable) throw new Error('No variable name provided')\n        // if (!window['uibuilder']) throw new Error('UIBUILDER client library not loaded - this component must be loaded AFTER the UIBUILDER library')\n\n        this.value = window['uibuilder'].get(this.variable)\n        this.varDom()\n\n        // Watch for changes in the variable\n        window['uibuilder'].onChange(this.variable, (val) => {\n            this.value = val\n            this.varDom()\n            if (this.report === true) window['uibuilder'].send({topic: this.variable, payload: this.value || undefined})\n        })\n    }\n\n    /** Convert this.value to DOM output */\n    varDom() {\n        // If user doesn't want to show undefined vars, allow the component slot to show instead\n        if (this.value === undefined && this.undefined !== true) { \n            this.shadow.innerHTML = '<slot></slot>'\n            return\n        }\n        \n        let val = this.value\n\n        // console.log('\uD83E\uDDEA varDOM: ', val, typeof val, this.type)\n\n        switch (this.type) {\n            case 'markdown': {\n                this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(window['uibuilder'].convertMarkdown(val))\n                break\n            }\n        \n            case 'object': {\n                // console.log(window['uibuilder'].syntaxHighlight(val))\n                this.shadow.innerHTML = `<pre class=\"syntax-highlight\">${window['uibuilder'].syntaxHighlight(val)}</pre>`\n                break\n            }\n        \n            case 'plain':\n            case 'html':\n            default: {\n                const t = typeof val\n                if (Array.isArray(val) || t === '[object Object]' || t === 'object') {\n                    try {\n                        this.shadow.innerHTML = JSON.stringify(val)\n                    } catch (e) {\n                        this.shadow.innerHTML = val\n                    }\n                } else {\n                    this.shadow.innerHTML = val\n                }\n                break\n            }\n        }\n\n        this.shadow.appendChild(this.css)\n        // this.$('span').innerHTML = window['uibuilder'].sanitiseHTML(val)\n        // this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(val)\n    }\n}\n\n// Add the class as a new Custom Element to the window object \n// customElements.define('uib-var', UibVar)\n", "const PACKET_TYPES = Object.create(null); // no Map = no polyfill\nPACKET_TYPES[\"open\"] = \"0\";\nPACKET_TYPES[\"close\"] = \"1\";\nPACKET_TYPES[\"ping\"] = \"2\";\nPACKET_TYPES[\"pong\"] = \"3\";\nPACKET_TYPES[\"message\"] = \"4\";\nPACKET_TYPES[\"upgrade\"] = \"5\";\nPACKET_TYPES[\"noop\"] = \"6\";\nconst PACKET_TYPES_REVERSE = Object.create(null);\nObject.keys(PACKET_TYPES).forEach(key => {\n    PACKET_TYPES_REVERSE[PACKET_TYPES[key]] = key;\n});\nconst ERROR_PACKET = { type: \"error\", data: \"parser error\" };\nexport { PACKET_TYPES, PACKET_TYPES_REVERSE, ERROR_PACKET };\n", "import { PACKET_TYPES } from \"./commons.js\";\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        Object.prototype.toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\n// ArrayBuffer.isView method is not defined in IE10\nconst isView = obj => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj && obj.buffer instanceof ArrayBuffer;\n};\nconst encodePacket = ({ type, data }, supportsBinary, callback) => {\n    if (withNativeBlob && data instanceof Blob) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(data, callback);\n        }\n    }\n    else if (withNativeArrayBuffer &&\n        (data instanceof ArrayBuffer || isView(data))) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(new Blob([data]), callback);\n        }\n    }\n    // plain string\n    return callback(PACKET_TYPES[type] + (data || \"\"));\n};\nconst encodeBlobAsBase64 = (data, callback) => {\n    const fileReader = new FileReader();\n    fileReader.onload = function () {\n        const content = fileReader.result.split(\",\")[1];\n        callback(\"b\" + (content || \"\"));\n    };\n    return fileReader.readAsDataURL(data);\n};\nfunction toArray(data) {\n    if (data instanceof Uint8Array) {\n        return data;\n    }\n    else if (data instanceof ArrayBuffer) {\n        return new Uint8Array(data);\n    }\n    else {\n        return new Uint8Array(data.buffer, data.byteOffset, data.byteLength);\n    }\n}\nlet TEXT_ENCODER;\nexport function encodePacketToBinary(packet, callback) {\n    if (withNativeBlob && packet.data instanceof Blob) {\n        return packet.data\n            .arrayBuffer()\n            .then(toArray)\n            .then(callback);\n    }\n    else if (withNativeArrayBuffer &&\n        (packet.data instanceof ArrayBuffer || isView(packet.data))) {\n        return callback(toArray(packet.data));\n    }\n    encodePacket(packet, false, encoded => {\n        if (!TEXT_ENCODER) {\n            TEXT_ENCODER = new TextEncoder();\n        }\n        callback(TEXT_ENCODER.encode(encoded));\n    });\n}\nexport { encodePacket };\n", "// imported from https://github.com/socketio/base64-arraybuffer\nconst chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';\n// Use a lookup table to find the index.\nconst lookup = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);\nfor (let i = 0; i < chars.length; i++) {\n    lookup[chars.charCodeAt(i)] = i;\n}\nexport const encode = (arraybuffer) => {\n    let bytes = new Uint8Array(arraybuffer), i, len = bytes.length, base64 = '';\n    for (i = 0; i < len; i += 3) {\n        base64 += chars[bytes[i] >> 2];\n        base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];\n        base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];\n        base64 += chars[bytes[i + 2] & 63];\n    }\n    if (len % 3 === 2) {\n        base64 = base64.substring(0, base64.length - 1) + '=';\n    }\n    else if (len % 3 === 1) {\n        base64 = base64.substring(0, base64.length - 2) + '==';\n    }\n    return base64;\n};\nexport const decode = (base64) => {\n    let bufferLength = base64.length * 0.75, len = base64.length, i, p = 0, encoded1, encoded2, encoded3, encoded4;\n    if (base64[base64.length - 1] === '=') {\n        bufferLength--;\n        if (base64[base64.length - 2] === '=') {\n            bufferLength--;\n        }\n    }\n    const arraybuffer = new ArrayBuffer(bufferLength), bytes = new Uint8Array(arraybuffer);\n    for (i = 0; i < len; i += 4) {\n        encoded1 = lookup[base64.charCodeAt(i)];\n        encoded2 = lookup[base64.charCodeAt(i + 1)];\n        encoded3 = lookup[base64.charCodeAt(i + 2)];\n        encoded4 = lookup[base64.charCodeAt(i + 3)];\n        bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n        bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n        bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n    }\n    return arraybuffer;\n};\n", "import { ERROR_PACKET, PACKET_TYPES_REVERSE } from \"./commons.js\";\nimport { decode } from \"./contrib/base64-arraybuffer.js\";\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nexport const decodePacket = (encodedPacket, binaryType) => {\n    if (typeof encodedPacket !== \"string\") {\n        return {\n            type: \"message\",\n            data: mapBinary(encodedPacket, binaryType)\n        };\n    }\n    const type = encodedPacket.charAt(0);\n    if (type === \"b\") {\n        return {\n            type: \"message\",\n            data: decodeBase64Packet(encodedPacket.substring(1), binaryType)\n        };\n    }\n    const packetType = PACKET_TYPES_REVERSE[type];\n    if (!packetType) {\n        return ERROR_PACKET;\n    }\n    return encodedPacket.length > 1\n        ? {\n            type: PACKET_TYPES_REVERSE[type],\n            data: encodedPacket.substring(1)\n        }\n        : {\n            type: PACKET_TYPES_REVERSE[type]\n        };\n};\nconst decodeBase64Packet = (data, binaryType) => {\n    if (withNativeArrayBuffer) {\n        const decoded = decode(data);\n        return mapBinary(decoded, binaryType);\n    }\n    else {\n        return { base64: true, data }; // fallback for old browsers\n    }\n};\nconst mapBinary = (data, binaryType) => {\n    switch (binaryType) {\n        case \"blob\":\n            if (data instanceof Blob) {\n                // from WebSocket + binaryType \"blob\"\n                return data;\n            }\n            else {\n                // from HTTP long-polling or WebTransport\n                return new Blob([data]);\n            }\n        case \"arraybuffer\":\n        default:\n            if (data instanceof ArrayBuffer) {\n                // from HTTP long-polling (base64) or WebSocket + binaryType \"arraybuffer\"\n                return data;\n            }\n            else {\n                // from WebTransport (Uint8Array)\n                return data.buffer;\n            }\n    }\n};\n", "import { encodePacket, encodePacketToBinary } from \"./encodePacket.js\";\nimport { decodePacket } from \"./decodePacket.js\";\nimport { ERROR_PACKET } from \"./commons.js\";\nconst SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text\nconst encodePayload = (packets, callback) => {\n    // some packets may be added to the array while encoding, so the initial length must be saved\n    const length = packets.length;\n    const encodedPackets = new Array(length);\n    let count = 0;\n    packets.forEach((packet, i) => {\n        // force base64 encoding for binary packets\n        encodePacket(packet, false, encodedPacket => {\n            encodedPackets[i] = encodedPacket;\n            if (++count === length) {\n                callback(encodedPackets.join(SEPARATOR));\n            }\n        });\n    });\n};\nconst decodePayload = (encodedPayload, binaryType) => {\n    const encodedPackets = encodedPayload.split(SEPARATOR);\n    const packets = [];\n    for (let i = 0; i < encodedPackets.length; i++) {\n        const decodedPacket = decodePacket(encodedPackets[i], binaryType);\n        packets.push(decodedPacket);\n        if (decodedPacket.type === \"error\") {\n            break;\n        }\n    }\n    return packets;\n};\nexport function createPacketEncoderStream() {\n    return new TransformStream({\n        transform(packet, controller) {\n            encodePacketToBinary(packet, encodedPacket => {\n                const payloadLength = encodedPacket.length;\n                let header;\n                // inspired by the WebSocket format: https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API/Writing_WebSocket_servers#decoding_payload_length\n                if (payloadLength < 126) {\n                    header = new Uint8Array(1);\n                    new DataView(header.buffer).setUint8(0, payloadLength);\n                }\n                else if (payloadLength < 65536) {\n                    header = new Uint8Array(3);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 126);\n                    view.setUint16(1, payloadLength);\n                }\n                else {\n                    header = new Uint8Array(9);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 127);\n                    view.setBigUint64(1, BigInt(payloadLength));\n                }\n                // first bit indicates whether the payload is plain text (0) or binary (1)\n                if (packet.data && typeof packet.data !== \"string\") {\n                    header[0] |= 0x80;\n                }\n                controller.enqueue(header);\n                controller.enqueue(encodedPacket);\n            });\n        }\n    });\n}\nlet TEXT_DECODER;\nfunction totalLength(chunks) {\n    return chunks.reduce((acc, chunk) => acc + chunk.length, 0);\n}\nfunction concatChunks(chunks, size) {\n    if (chunks[0].length === size) {\n        return chunks.shift();\n    }\n    const buffer = new Uint8Array(size);\n    let j = 0;\n    for (let i = 0; i < size; i++) {\n        buffer[i] = chunks[0][j++];\n        if (j === chunks[0].length) {\n            chunks.shift();\n            j = 0;\n        }\n    }\n    if (chunks.length && j < chunks[0].length) {\n        chunks[0] = chunks[0].slice(j);\n    }\n    return buffer;\n}\nexport function createPacketDecoderStream(maxPayload, binaryType) {\n    if (!TEXT_DECODER) {\n        TEXT_DECODER = new TextDecoder();\n    }\n    const chunks = [];\n    let state = 0 /* READ_HEADER */;\n    let expectedLength = -1;\n    let isBinary = false;\n    return new TransformStream({\n        transform(chunk, controller) {\n            chunks.push(chunk);\n            while (true) {\n                if (state === 0 /* READ_HEADER */) {\n                    if (totalLength(chunks) < 1) {\n                        break;\n                    }\n                    const header = concatChunks(chunks, 1);\n                    isBinary = (header[0] & 0x80) === 0x80;\n                    expectedLength = header[0] & 0x7f;\n                    if (expectedLength < 126) {\n                        state = 3 /* READ_PAYLOAD */;\n                    }\n                    else if (expectedLength === 126) {\n                        state = 1 /* READ_EXTENDED_LENGTH_16 */;\n                    }\n                    else {\n                        state = 2 /* READ_EXTENDED_LENGTH_64 */;\n                    }\n                }\n                else if (state === 1 /* READ_EXTENDED_LENGTH_16 */) {\n                    if (totalLength(chunks) < 2) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 2);\n                    expectedLength = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length).getUint16(0);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else if (state === 2 /* READ_EXTENDED_LENGTH_64 */) {\n                    if (totalLength(chunks) < 8) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 8);\n                    const view = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length);\n                    const n = view.getUint32(0);\n                    if (n > Math.pow(2, 53 - 32) - 1) {\n                        // the maximum safe integer in JavaScript is 2^53 - 1\n                        controller.enqueue(ERROR_PACKET);\n                        break;\n                    }\n                    expectedLength = n * Math.pow(2, 32) + view.getUint32(4);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else {\n                    if (totalLength(chunks) < expectedLength) {\n                        break;\n                    }\n                    const data = concatChunks(chunks, expectedLength);\n                    controller.enqueue(decodePacket(isBinary ? data : TEXT_DECODER.decode(data), binaryType));\n                    state = 0 /* READ_HEADER */;\n                }\n                if (expectedLength === 0 || expectedLength > maxPayload) {\n                    controller.enqueue(ERROR_PACKET);\n                    break;\n                }\n            }\n        }\n    });\n}\nexport const protocol = 4;\nexport { encodePacket, encodePayload, decodePacket, decodePayload };\n", "/**\n * Initialize a new `Emitter`.\n *\n * @api public\n */\n\nexport function Emitter(obj) {\n  if (obj) return mixin(obj);\n}\n\n/**\n * Mixin the emitter properties.\n *\n * @param {Object} obj\n * @return {Object}\n * @api private\n */\n\nfunction mixin(obj) {\n  for (var key in Emitter.prototype) {\n    obj[key] = Emitter.prototype[key];\n  }\n  return obj;\n}\n\n/**\n * Listen on the given `event` with `fn`.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.on =\nEmitter.prototype.addEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])\n    .push(fn);\n  return this;\n};\n\n/**\n * Adds an `event` listener that will be invoked a single\n * time then automatically removed.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.once = function(event, fn){\n  function on() {\n    this.off(event, on);\n    fn.apply(this, arguments);\n  }\n\n  on.fn = fn;\n  this.on(event, on);\n  return this;\n};\n\n/**\n * Remove the given callback for `event` or all\n * registered callbacks.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.off =\nEmitter.prototype.removeListener =\nEmitter.prototype.removeAllListeners =\nEmitter.prototype.removeEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n\n  // all\n  if (0 == arguments.length) {\n    this._callbacks = {};\n    return this;\n  }\n\n  // specific event\n  var callbacks = this._callbacks['$' + event];\n  if (!callbacks) return this;\n\n  // remove all handlers\n  if (1 == arguments.length) {\n    delete this._callbacks['$' + event];\n    return this;\n  }\n\n  // remove specific handler\n  var cb;\n  for (var i = 0; i < callbacks.length; i++) {\n    cb = callbacks[i];\n    if (cb === fn || cb.fn === fn) {\n      callbacks.splice(i, 1);\n      break;\n    }\n  }\n\n  // Remove event specific arrays for event types that no\n  // one is subscribed for to avoid memory leak.\n  if (callbacks.length === 0) {\n    delete this._callbacks['$' + event];\n  }\n\n  return this;\n};\n\n/**\n * Emit `event` with the given args.\n *\n * @param {String} event\n * @param {Mixed} ...\n * @return {Emitter}\n */\n\nEmitter.prototype.emit = function(event){\n  this._callbacks = this._callbacks || {};\n\n  var args = new Array(arguments.length - 1)\n    , callbacks = this._callbacks['$' + event];\n\n  for (var i = 1; i < arguments.length; i++) {\n    args[i - 1] = arguments[i];\n  }\n\n  if (callbacks) {\n    callbacks = callbacks.slice(0);\n    for (var i = 0, len = callbacks.length; i < len; ++i) {\n      callbacks[i].apply(this, args);\n    }\n  }\n\n  return this;\n};\n\n// alias used for reserved events (protected method)\nEmitter.prototype.emitReserved = Emitter.prototype.emit;\n\n/**\n * Return array of callbacks for `event`.\n *\n * @param {String} event\n * @return {Array}\n * @api public\n */\n\nEmitter.prototype.listeners = function(event){\n  this._callbacks = this._callbacks || {};\n  return this._callbacks['$' + event] || [];\n};\n\n/**\n * Check if this emitter has `event` handlers.\n *\n * @param {String} event\n * @return {Boolean}\n * @api public\n */\n\nEmitter.prototype.hasListeners = function(event){\n  return !! this.listeners(event).length;\n};\n", "export const globalThisShim = (() => {\n    if (typeof self !== \"undefined\") {\n        return self;\n    }\n    else if (typeof window !== \"undefined\") {\n        return window;\n    }\n    else {\n        return Function(\"return this\")();\n    }\n})();\n", "import { globalThisShim as globalThis } from \"./globalThis.js\";\nexport function pick(obj, ...attr) {\n    return attr.reduce((acc, k) => {\n        if (obj.hasOwnProperty(k)) {\n            acc[k] = obj[k];\n        }\n        return acc;\n    }, {});\n}\n// Keep a reference to the real timeout functions so they can be used when overridden\nconst NATIVE_SET_TIMEOUT = globalThis.setTimeout;\nconst NATIVE_CLEAR_TIMEOUT = globalThis.clearTimeout;\nexport function installTimerFunctions(obj, opts) {\n    if (opts.useNativeTimers) {\n        obj.setTimeoutFn = NATIVE_SET_TIMEOUT.bind(globalThis);\n        obj.clearTimeoutFn = NATIVE_CLEAR_TIMEOUT.bind(globalThis);\n    }\n    else {\n        obj.setTimeoutFn = globalThis.setTimeout.bind(globalThis);\n        obj.clearTimeoutFn = globalThis.clearTimeout.bind(globalThis);\n    }\n}\n// base64 encoded buffers are about 33% bigger (https://en.wikipedia.org/wiki/Base64)\nconst BASE64_OVERHEAD = 1.33;\n// we could also have used `new Blob([obj]).size`, but it isn't supported in IE9\nexport function byteLength(obj) {\n    if (typeof obj === \"string\") {\n        return utf8Length(obj);\n    }\n    // arraybuffer or blob\n    return Math.ceil((obj.byteLength || obj.size) * BASE64_OVERHEAD);\n}\nfunction utf8Length(str) {\n    let c = 0, length = 0;\n    for (let i = 0, l = str.length; i < l; i++) {\n        c = str.charCodeAt(i);\n        if (c < 0x80) {\n            length += 1;\n        }\n        else if (c < 0x800) {\n            length += 2;\n        }\n        else if (c < 0xd800 || c >= 0xe000) {\n            length += 3;\n        }\n        else {\n            i++;\n            length += 4;\n        }\n    }\n    return length;\n}\n", "// imported from https://github.com/galkn/querystring\n/**\n * Compiles a querystring\n * Returns string representation of the object\n *\n * @param {Object}\n * @api private\n */\nexport function encode(obj) {\n    let str = '';\n    for (let i in obj) {\n        if (obj.hasOwnProperty(i)) {\n            if (str.length)\n                str += '&';\n            str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);\n        }\n    }\n    return str;\n}\n/**\n * Parses a simple querystring into an object\n *\n * @param {String} qs\n * @api private\n */\nexport function decode(qs) {\n    let qry = {};\n    let pairs = qs.split('&');\n    for (let i = 0, l = pairs.length; i < l; i++) {\n        let pair = pairs[i].split('=');\n        qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);\n    }\n    return qry;\n}\n", "import { decodePacket } from \"engine.io-parser\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions } from \"./util.js\";\nimport { encode } from \"./contrib/parseqs.js\";\nexport class TransportError extends Error {\n    constructor(reason, description, context) {\n        super(reason);\n        this.description = description;\n        this.context = context;\n        this.type = \"TransportError\";\n    }\n}\nexport class Transport extends Emitter {\n    /**\n     * Transport abstract constructor.\n     *\n     * @param {Object} opts - options\n     * @protected\n     */\n    constructor(opts) {\n        super();\n        this.writable = false;\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.query = opts.query;\n        this.socket = opts.socket;\n    }\n    /**\n     * Emits an error.\n     *\n     * @param {String} reason\n     * @param description\n     * @param context - the error context\n     * @return {Transport} for chaining\n     * @protected\n     */\n    onError(reason, description, context) {\n        super.emitReserved(\"error\", new TransportError(reason, description, context));\n        return this;\n    }\n    /**\n     * Opens the transport.\n     */\n    open() {\n        this.readyState = \"opening\";\n        this.doOpen();\n        return this;\n    }\n    /**\n     * Closes the transport.\n     */\n    close() {\n        if (this.readyState === \"opening\" || this.readyState === \"open\") {\n            this.doClose();\n            this.onClose();\n        }\n        return this;\n    }\n    /**\n     * Sends multiple packets.\n     *\n     * @param {Array} packets\n     */\n    send(packets) {\n        if (this.readyState === \"open\") {\n            this.write(packets);\n        }\n        else {\n            // this might happen if the transport was silently closed in the beforeunload event handler\n        }\n    }\n    /**\n     * Called upon open\n     *\n     * @protected\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        this.writable = true;\n        super.emitReserved(\"open\");\n    }\n    /**\n     * Called with data.\n     *\n     * @param {String} data\n     * @protected\n     */\n    onData(data) {\n        const packet = decodePacket(data, this.socket.binaryType);\n        this.onPacket(packet);\n    }\n    /**\n     * Called with a decoded packet.\n     *\n     * @protected\n     */\n    onPacket(packet) {\n        super.emitReserved(\"packet\", packet);\n    }\n    /**\n     * Called upon close.\n     *\n     * @protected\n     */\n    onClose(details) {\n        this.readyState = \"closed\";\n        super.emitReserved(\"close\", details);\n    }\n    /**\n     * Pauses the transport, in order not to lose packets during an upgrade.\n     *\n     * @param onPause\n     */\n    pause(onPause) { }\n    createUri(schema, query = {}) {\n        return (schema +\n            \"://\" +\n            this._hostname() +\n            this._port() +\n            this.opts.path +\n            this._query(query));\n    }\n    _hostname() {\n        const hostname = this.opts.hostname;\n        return hostname.indexOf(\":\") === -1 ? hostname : \"[\" + hostname + \"]\";\n    }\n    _port() {\n        if (this.opts.port &&\n            ((this.opts.secure && Number(this.opts.port !== 443)) ||\n                (!this.opts.secure && Number(this.opts.port) !== 80))) {\n            return \":\" + this.opts.port;\n        }\n        else {\n            return \"\";\n        }\n    }\n    _query(query) {\n        const encodedQuery = encode(query);\n        return encodedQuery.length ? \"?\" + encodedQuery : \"\";\n    }\n}\n", "// imported from https://github.com/unshiftio/yeast\n'use strict';\nconst alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split(''), length = 64, map = {};\nlet seed = 0, i = 0, prev;\n/**\n * Return a string representing the specified number.\n *\n * @param {Number} num The number to convert.\n * @returns {String} The string representation of the number.\n * @api public\n */\nexport function encode(num) {\n    let encoded = '';\n    do {\n        encoded = alphabet[num % length] + encoded;\n        num = Math.floor(num / length);\n    } while (num > 0);\n    return encoded;\n}\n/**\n * Return the integer value specified by the given string.\n *\n * @param {String} str The string to convert.\n * @returns {Number} The integer value represented by the string.\n * @api public\n */\nexport function decode(str) {\n    let decoded = 0;\n    for (i = 0; i < str.length; i++) {\n        decoded = decoded * length + map[str.charAt(i)];\n    }\n    return decoded;\n}\n/**\n * Yeast: A tiny growing id generator.\n *\n * @returns {String} A unique id.\n * @api public\n */\nexport function yeast() {\n    const now = encode(+new Date());\n    if (now !== prev)\n        return seed = 0, prev = now;\n    return now + '.' + encode(seed++);\n}\n//\n// Map each character to its index.\n//\nfor (; i < length; i++)\n    map[alphabet[i]] = i;\n", "// imported from https://github.com/component/has-cors\nlet value = false;\ntry {\n    value = typeof XMLHttpRequest !== 'undefined' &&\n        'withCredentials' in new XMLHttpRequest();\n}\ncatch (err) {\n    // if XMLHttp support is disabled in IE then it will throw\n    // when trying to create\n}\nexport const hasCORS = value;\n", "// browser shim for xmlhttprequest module\nimport { hasCORS } from \"../contrib/has-cors.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nexport function XHR(opts) {\n    const xdomain = opts.xdomain;\n    // XMLHttpRequest can be disabled on IE\n    try {\n        if (\"undefined\" !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {\n            return new XMLHttpRequest();\n        }\n    }\n    catch (e) { }\n    if (!xdomain) {\n        try {\n            return new globalThis[[\"Active\"].concat(\"Object\").join(\"X\")](\"Microsoft.XMLHTTP\");\n        }\n        catch (e) { }\n    }\n}\nexport function createCookieJar() { }\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { encodePayload, decodePayload } from \"engine.io-parser\";\nimport { createCookieJar, XHR as XMLHttpRequest, } from \"./xmlhttprequest.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions, pick } from \"../util.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nfunction empty() { }\nconst hasXHR2 = (function () {\n    const xhr = new XMLHttpRequest({\n        xdomain: false,\n    });\n    return null != xhr.responseType;\n})();\nexport class Polling extends Transport {\n    /**\n     * XHR Polling constructor.\n     *\n     * @param {Object} opts\n     * @package\n     */\n    constructor(opts) {\n        super(opts);\n        this.polling = false;\n        if (typeof location !== \"undefined\") {\n            const isSSL = \"https:\" === location.protocol;\n            let port = location.port;\n            // some user agents have empty `location.port`\n            if (!port) {\n                port = isSSL ? \"443\" : \"80\";\n            }\n            this.xd =\n                (typeof location !== \"undefined\" &&\n                    opts.hostname !== location.hostname) ||\n                    port !== opts.port;\n        }\n        /**\n         * XHR supports binary\n         */\n        const forceBase64 = opts && opts.forceBase64;\n        this.supportsBinary = hasXHR2 && !forceBase64;\n        if (this.opts.withCredentials) {\n            this.cookieJar = createCookieJar();\n        }\n    }\n    get name() {\n        return \"polling\";\n    }\n    /**\n     * Opens the socket (triggers polling). We write a PING message to determine\n     * when the transport is open.\n     *\n     * @protected\n     */\n    doOpen() {\n        this.poll();\n    }\n    /**\n     * Pauses polling.\n     *\n     * @param {Function} onPause - callback upon buffers are flushed and transport is paused\n     * @package\n     */\n    pause(onPause) {\n        this.readyState = \"pausing\";\n        const pause = () => {\n            this.readyState = \"paused\";\n            onPause();\n        };\n        if (this.polling || !this.writable) {\n            let total = 0;\n            if (this.polling) {\n                total++;\n                this.once(\"pollComplete\", function () {\n                    --total || pause();\n                });\n            }\n            if (!this.writable) {\n                total++;\n                this.once(\"drain\", function () {\n                    --total || pause();\n                });\n            }\n        }\n        else {\n            pause();\n        }\n    }\n    /**\n     * Starts polling cycle.\n     *\n     * @private\n     */\n    poll() {\n        this.polling = true;\n        this.doPoll();\n        this.emitReserved(\"poll\");\n    }\n    /**\n     * Overloads onData to detect payloads.\n     *\n     * @protected\n     */\n    onData(data) {\n        const callback = (packet) => {\n            // if its the first message we consider the transport open\n            if (\"opening\" === this.readyState && packet.type === \"open\") {\n                this.onOpen();\n            }\n            // if its a close packet, we close the ongoing requests\n            if (\"close\" === packet.type) {\n                this.onClose({ description: \"transport closed by the server\" });\n                return false;\n            }\n            // otherwise bypass onData and handle the message\n            this.onPacket(packet);\n        };\n        // decode payload\n        decodePayload(data, this.socket.binaryType).forEach(callback);\n        // if an event did not trigger closing\n        if (\"closed\" !== this.readyState) {\n            // if we got data we're not polling\n            this.polling = false;\n            this.emitReserved(\"pollComplete\");\n            if (\"open\" === this.readyState) {\n                this.poll();\n            }\n            else {\n            }\n        }\n    }\n    /**\n     * For polling, send a close packet.\n     *\n     * @protected\n     */\n    doClose() {\n        const close = () => {\n            this.write([{ type: \"close\" }]);\n        };\n        if (\"open\" === this.readyState) {\n            close();\n        }\n        else {\n            // in case we're trying to close while\n            // handshaking is in progress (GH-164)\n            this.once(\"open\", close);\n        }\n    }\n    /**\n     * Writes a packets payload.\n     *\n     * @param {Array} packets - data packets\n     * @protected\n     */\n    write(packets) {\n        this.writable = false;\n        encodePayload(packets, (data) => {\n            this.doWrite(data, () => {\n                this.writable = true;\n                this.emitReserved(\"drain\");\n            });\n        });\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"https\" : \"http\";\n        const query = this.query || {};\n        // cache busting is forced\n        if (false !== this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        if (!this.supportsBinary && !query.sid) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Creates a request.\n     *\n     * @param {String} method\n     * @private\n     */\n    request(opts = {}) {\n        Object.assign(opts, { xd: this.xd, cookieJar: this.cookieJar }, this.opts);\n        return new Request(this.uri(), opts);\n    }\n    /**\n     * Sends data.\n     *\n     * @param {String} data to send.\n     * @param {Function} called upon flush.\n     * @private\n     */\n    doWrite(data, fn) {\n        const req = this.request({\n            method: \"POST\",\n            data: data,\n        });\n        req.on(\"success\", fn);\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr post error\", xhrStatus, context);\n        });\n    }\n    /**\n     * Starts a poll cycle.\n     *\n     * @private\n     */\n    doPoll() {\n        const req = this.request();\n        req.on(\"data\", this.onData.bind(this));\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr poll error\", xhrStatus, context);\n        });\n        this.pollXhr = req;\n    }\n}\nexport class Request extends Emitter {\n    /**\n     * Request constructor\n     *\n     * @param {Object} options\n     * @package\n     */\n    constructor(uri, opts) {\n        super();\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.method = opts.method || \"GET\";\n        this.uri = uri;\n        this.data = undefined !== opts.data ? opts.data : null;\n        this.create();\n    }\n    /**\n     * Creates the XHR object and sends the request.\n     *\n     * @private\n     */\n    create() {\n        var _a;\n        const opts = pick(this.opts, \"agent\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"autoUnref\");\n        opts.xdomain = !!this.opts.xd;\n        const xhr = (this.xhr = new XMLHttpRequest(opts));\n        try {\n            xhr.open(this.method, this.uri, true);\n            try {\n                if (this.opts.extraHeaders) {\n                    xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);\n                    for (let i in this.opts.extraHeaders) {\n                        if (this.opts.extraHeaders.hasOwnProperty(i)) {\n                            xhr.setRequestHeader(i, this.opts.extraHeaders[i]);\n                        }\n                    }\n                }\n            }\n            catch (e) { }\n            if (\"POST\" === this.method) {\n                try {\n                    xhr.setRequestHeader(\"Content-type\", \"text/plain;charset=UTF-8\");\n                }\n                catch (e) { }\n            }\n            try {\n                xhr.setRequestHeader(\"Accept\", \"*/*\");\n            }\n            catch (e) { }\n            (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.addCookies(xhr);\n            // ie6 check\n            if (\"withCredentials\" in xhr) {\n                xhr.withCredentials = this.opts.withCredentials;\n            }\n            if (this.opts.requestTimeout) {\n                xhr.timeout = this.opts.requestTimeout;\n            }\n            xhr.onreadystatechange = () => {\n                var _a;\n                if (xhr.readyState === 3) {\n                    (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.parseCookies(xhr);\n                }\n                if (4 !== xhr.readyState)\n                    return;\n                if (200 === xhr.status || 1223 === xhr.status) {\n                    this.onLoad();\n                }\n                else {\n                    // make sure the `error` event handler that's user-set\n                    // does not throw in the same tick and gets caught here\n                    this.setTimeoutFn(() => {\n                        this.onError(typeof xhr.status === \"number\" ? xhr.status : 0);\n                    }, 0);\n                }\n            };\n            xhr.send(this.data);\n        }\n        catch (e) {\n            // Need to defer since .create() is called directly from the constructor\n            // and thus the 'error' event can only be only bound *after* this exception\n            // occurs.  Therefore, also, we cannot throw here at all.\n            this.setTimeoutFn(() => {\n                this.onError(e);\n            }, 0);\n            return;\n        }\n        if (typeof document !== \"undefined\") {\n            this.index = Request.requestsCount++;\n            Request.requests[this.index] = this;\n        }\n    }\n    /**\n     * Called upon error.\n     *\n     * @private\n     */\n    onError(err) {\n        this.emitReserved(\"error\", err, this.xhr);\n        this.cleanup(true);\n    }\n    /**\n     * Cleans up house.\n     *\n     * @private\n     */\n    cleanup(fromError) {\n        if (\"undefined\" === typeof this.xhr || null === this.xhr) {\n            return;\n        }\n        this.xhr.onreadystatechange = empty;\n        if (fromError) {\n            try {\n                this.xhr.abort();\n            }\n            catch (e) { }\n        }\n        if (typeof document !== \"undefined\") {\n            delete Request.requests[this.index];\n        }\n        this.xhr = null;\n    }\n    /**\n     * Called upon load.\n     *\n     * @private\n     */\n    onLoad() {\n        const data = this.xhr.responseText;\n        if (data !== null) {\n            this.emitReserved(\"data\", data);\n            this.emitReserved(\"success\");\n            this.cleanup();\n        }\n    }\n    /**\n     * Aborts the request.\n     *\n     * @package\n     */\n    abort() {\n        this.cleanup();\n    }\n}\nRequest.requestsCount = 0;\nRequest.requests = {};\n/**\n * Aborts pending requests when unloading the window. This is needed to prevent\n * memory leaks (e.g. when using IE) and to ensure that no spurious error is\n * emitted.\n */\nif (typeof document !== \"undefined\") {\n    // @ts-ignore\n    if (typeof attachEvent === \"function\") {\n        // @ts-ignore\n        attachEvent(\"onunload\", unloadHandler);\n    }\n    else if (typeof addEventListener === \"function\") {\n        const terminationEvent = \"onpagehide\" in globalThis ? \"pagehide\" : \"unload\";\n        addEventListener(terminationEvent, unloadHandler, false);\n    }\n}\nfunction unloadHandler() {\n    for (let i in Request.requests) {\n        if (Request.requests.hasOwnProperty(i)) {\n            Request.requests[i].abort();\n        }\n    }\n}\n", "import { globalThisShim as globalThis } from \"../globalThis.js\";\nexport const nextTick = (() => {\n    const isPromiseAvailable = typeof Promise === \"function\" && typeof Promise.resolve === \"function\";\n    if (isPromiseAvailable) {\n        return (cb) => Promise.resolve().then(cb);\n    }\n    else {\n        return (cb, setTimeoutFn) => setTimeoutFn(cb, 0);\n    }\n})();\nexport const WebSocket = globalThis.WebSocket || globalThis.MozWebSocket;\nexport const usingBrowserWebSocket = true;\nexport const defaultBinaryType = \"arraybuffer\";\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { pick } from \"../util.js\";\nimport { nextTick, usingBrowserWebSocket, WebSocket, } from \"./websocket-constructor.js\";\nimport { encodePacket } from \"engine.io-parser\";\n// detect ReactNative environment\nconst isReactNative = typeof navigator !== \"undefined\" &&\n    typeof navigator.product === \"string\" &&\n    navigator.product.toLowerCase() === \"reactnative\";\nexport class WS extends Transport {\n    /**\n     * WebSocket transport constructor.\n     *\n     * @param {Object} opts - connection options\n     * @protected\n     */\n    constructor(opts) {\n        super(opts);\n        this.supportsBinary = !opts.forceBase64;\n    }\n    get name() {\n        return \"websocket\";\n    }\n    doOpen() {\n        if (!this.check()) {\n            // let probe timeout\n            return;\n        }\n        const uri = this.uri();\n        const protocols = this.opts.protocols;\n        // React Native only supports the 'headers' option, and will print a warning if anything else is passed\n        const opts = isReactNative\n            ? {}\n            : pick(this.opts, \"agent\", \"perMessageDeflate\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"localAddress\", \"protocolVersion\", \"origin\", \"maxPayload\", \"family\", \"checkServerIdentity\");\n        if (this.opts.extraHeaders) {\n            opts.headers = this.opts.extraHeaders;\n        }\n        try {\n            this.ws =\n                usingBrowserWebSocket && !isReactNative\n                    ? protocols\n                        ? new WebSocket(uri, protocols)\n                        : new WebSocket(uri)\n                    : new WebSocket(uri, protocols, opts);\n        }\n        catch (err) {\n            return this.emitReserved(\"error\", err);\n        }\n        this.ws.binaryType = this.socket.binaryType;\n        this.addEventListeners();\n    }\n    /**\n     * Adds event listeners to the socket\n     *\n     * @private\n     */\n    addEventListeners() {\n        this.ws.onopen = () => {\n            if (this.opts.autoUnref) {\n                this.ws._socket.unref();\n            }\n            this.onOpen();\n        };\n        this.ws.onclose = (closeEvent) => this.onClose({\n            description: \"websocket connection closed\",\n            context: closeEvent,\n        });\n        this.ws.onmessage = (ev) => this.onData(ev.data);\n        this.ws.onerror = (e) => this.onError(\"websocket error\", e);\n    }\n    write(packets) {\n        this.writable = false;\n        // encodePacket efficient as it uses WS framing\n        // no need for encodePayload\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            encodePacket(packet, this.supportsBinary, (data) => {\n                // always create a new object (GH-437)\n                const opts = {};\n                if (!usingBrowserWebSocket) {\n                    if (packet.options) {\n                        opts.compress = packet.options.compress;\n                    }\n                    if (this.opts.perMessageDeflate) {\n                        const len = \n                        // @ts-ignore\n                        \"string\" === typeof data ? Buffer.byteLength(data) : data.length;\n                        if (len < this.opts.perMessageDeflate.threshold) {\n                            opts.compress = false;\n                        }\n                    }\n                }\n                // Sometimes the websocket has already been closed but the browser didn't\n                // have a chance of informing us about it yet, in that case send will\n                // throw an error\n                try {\n                    if (usingBrowserWebSocket) {\n                        // TypeError is thrown when passing the second argument on Safari\n                        this.ws.send(data);\n                    }\n                    else {\n                        this.ws.send(data, opts);\n                    }\n                }\n                catch (e) {\n                }\n                if (lastPacket) {\n                    // fake drain\n                    // defer to next tick to allow Socket to clear writeBuffer\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        if (typeof this.ws !== \"undefined\") {\n            this.ws.close();\n            this.ws = null;\n        }\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"wss\" : \"ws\";\n        const query = this.query || {};\n        // append timestamp to URI\n        if (this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        // communicate binary support capabilities\n        if (!this.supportsBinary) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Feature detection for WebSocket.\n     *\n     * @return {Boolean} whether this transport is available.\n     * @private\n     */\n    check() {\n        return !!WebSocket;\n    }\n}\n", "import { Transport } from \"../transport.js\";\nimport { nextTick } from \"./websocket-constructor.js\";\nimport { createPacketDecoderStream, createPacketEncoderStream, } from \"engine.io-parser\";\nexport class WT extends Transport {\n    get name() {\n        return \"webtransport\";\n    }\n    doOpen() {\n        // @ts-ignore\n        if (typeof WebTransport !== \"function\") {\n            return;\n        }\n        // @ts-ignore\n        this.transport = new WebTransport(this.createUri(\"https\"), this.opts.transportOptions[this.name]);\n        this.transport.closed\n            .then(() => {\n            this.onClose();\n        })\n            .catch((err) => {\n            this.onError(\"webtransport error\", err);\n        });\n        // note: we could have used async/await, but that would require some additional polyfills\n        this.transport.ready.then(() => {\n            this.transport.createBidirectionalStream().then((stream) => {\n                const decoderStream = createPacketDecoderStream(Number.MAX_SAFE_INTEGER, this.socket.binaryType);\n                const reader = stream.readable.pipeThrough(decoderStream).getReader();\n                const encoderStream = createPacketEncoderStream();\n                encoderStream.readable.pipeTo(stream.writable);\n                this.writer = encoderStream.writable.getWriter();\n                const read = () => {\n                    reader\n                        .read()\n                        .then(({ done, value }) => {\n                        if (done) {\n                            return;\n                        }\n                        this.onPacket(value);\n                        read();\n                    })\n                        .catch((err) => {\n                    });\n                };\n                read();\n                const packet = { type: \"open\" };\n                if (this.query.sid) {\n                    packet.data = `{\"sid\":\"${this.query.sid}\"}`;\n                }\n                this.writer.write(packet).then(() => this.onOpen());\n            });\n        });\n    }\n    write(packets) {\n        this.writable = false;\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            this.writer.write(packet).then(() => {\n                if (lastPacket) {\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        var _a;\n        (_a = this.transport) === null || _a === void 0 ? void 0 : _a.close();\n    }\n}\n", "import { Polling } from \"./polling.js\";\nimport { WS } from \"./websocket.js\";\nimport { WT } from \"./webtransport.js\";\nexport const transports = {\n    websocket: WS,\n    webtransport: WT,\n    polling: Polling,\n};\n", "// imported from https://github.com/galkn/parseuri\n/**\n * Parses a URI\n *\n * Note: we could also have used the built-in URL object, but it isn't supported on all platforms.\n *\n * See:\n * - https://developer.mozilla.org/en-US/docs/Web/API/URL\n * - https://caniuse.com/url\n * - https://www.rfc-editor.org/rfc/rfc3986#appendix-B\n *\n * History of the parse() method:\n * - first commit: https://github.com/socketio/socket.io-client/commit/4ee1d5d94b3906a9c052b459f1a818b15f38f91c\n * - export into its own module: https://github.com/socketio/engine.io-client/commit/de2c561e4564efeb78f1bdb1ba39ef81b2822cb3\n * - reimport: https://github.com/socketio/engine.io-client/commit/df32277c3f6d622eec5ed09f493cae3f3391d242\n *\n * @author Steven Levithan <stevenlevithan.com> (MIT license)\n * @api private\n */\nconst re = /^(?:(?![^:@\\/?#]+:[^:@\\/]*@)(http|https|ws|wss):\\/\\/)?((?:(([^:@\\/?#]*)(?::([^:@\\/?#]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\\/?#]*)(?::(\\d*))?)(((\\/(?:[^?#](?![^?#\\/]*\\.[^?#\\/.]+(?:[?#]|$)))*\\/?)?([^?#\\/]*))(?:\\?([^#]*))?(?:#(.*))?)/;\nconst parts = [\n    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'\n];\nexport function parse(str) {\n    if (str.length > 2000) {\n        throw \"URI too long\";\n    }\n    const src = str, b = str.indexOf('['), e = str.indexOf(']');\n    if (b != -1 && e != -1) {\n        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);\n    }\n    let m = re.exec(str || ''), uri = {}, i = 14;\n    while (i--) {\n        uri[parts[i]] = m[i] || '';\n    }\n    if (b != -1 && e != -1) {\n        uri.source = src;\n        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');\n        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');\n        uri.ipv6uri = true;\n    }\n    uri.pathNames = pathNames(uri, uri['path']);\n    uri.queryKey = queryKey(uri, uri['query']);\n    return uri;\n}\nfunction pathNames(obj, path) {\n    const regx = /\\/{2,9}/g, names = path.replace(regx, \"/\").split(\"/\");\n    if (path.slice(0, 1) == '/' || path.length === 0) {\n        names.splice(0, 1);\n    }\n    if (path.slice(-1) == '/') {\n        names.splice(names.length - 1, 1);\n    }\n    return names;\n}\nfunction queryKey(uri, query) {\n    const data = {};\n    query.replace(/(?:^|&)([^&=]*)=?([^&]*)/g, function ($0, $1, $2) {\n        if ($1) {\n            data[$1] = $2;\n        }\n    });\n    return data;\n}\n", "import { transports } from \"./transports/index.js\";\nimport { installTimerFunctions, byteLength } from \"./util.js\";\nimport { decode } from \"./contrib/parseqs.js\";\nimport { parse } from \"./contrib/parseuri.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { protocol } from \"engine.io-parser\";\nimport { defaultBinaryType } from \"./transports/websocket-constructor.js\";\nexport class Socket extends Emitter {\n    /**\n     * Socket constructor.\n     *\n     * @param {String|Object} uri - uri or options\n     * @param {Object} opts - options\n     */\n    constructor(uri, opts = {}) {\n        super();\n        this.binaryType = defaultBinaryType;\n        this.writeBuffer = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = null;\n        }\n        if (uri) {\n            uri = parse(uri);\n            opts.hostname = uri.host;\n            opts.secure = uri.protocol === \"https\" || uri.protocol === \"wss\";\n            opts.port = uri.port;\n            if (uri.query)\n                opts.query = uri.query;\n        }\n        else if (opts.host) {\n            opts.hostname = parse(opts.host).host;\n        }\n        installTimerFunctions(this, opts);\n        this.secure =\n            null != opts.secure\n                ? opts.secure\n                : typeof location !== \"undefined\" && \"https:\" === location.protocol;\n        if (opts.hostname && !opts.port) {\n            // if no port is specified manually, use the protocol default\n            opts.port = this.secure ? \"443\" : \"80\";\n        }\n        this.hostname =\n            opts.hostname ||\n                (typeof location !== \"undefined\" ? location.hostname : \"localhost\");\n        this.port =\n            opts.port ||\n                (typeof location !== \"undefined\" && location.port\n                    ? location.port\n                    : this.secure\n                        ? \"443\"\n                        : \"80\");\n        this.transports = opts.transports || [\n            \"polling\",\n            \"websocket\",\n            \"webtransport\",\n        ];\n        this.writeBuffer = [];\n        this.prevBufferLen = 0;\n        this.opts = Object.assign({\n            path: \"/engine.io\",\n            agent: false,\n            withCredentials: false,\n            upgrade: true,\n            timestampParam: \"t\",\n            rememberUpgrade: false,\n            addTrailingSlash: true,\n            rejectUnauthorized: true,\n            perMessageDeflate: {\n                threshold: 1024,\n            },\n            transportOptions: {},\n            closeOnBeforeunload: false,\n        }, opts);\n        this.opts.path =\n            this.opts.path.replace(/\\/$/, \"\") +\n                (this.opts.addTrailingSlash ? \"/\" : \"\");\n        if (typeof this.opts.query === \"string\") {\n            this.opts.query = decode(this.opts.query);\n        }\n        // set on handshake\n        this.id = null;\n        this.upgrades = null;\n        this.pingInterval = null;\n        this.pingTimeout = null;\n        // set on heartbeat\n        this.pingTimeoutTimer = null;\n        if (typeof addEventListener === \"function\") {\n            if (this.opts.closeOnBeforeunload) {\n                // Firefox closes the connection when the \"beforeunload\" event is emitted but not Chrome. This event listener\n                // ensures every browser behaves the same (no \"disconnect\" event at the Socket.IO level when the page is\n                // closed/reloaded)\n                this.beforeunloadEventListener = () => {\n                    if (this.transport) {\n                        // silently close the transport\n                        this.transport.removeAllListeners();\n                        this.transport.close();\n                    }\n                };\n                addEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n            }\n            if (this.hostname !== \"localhost\") {\n                this.offlineEventListener = () => {\n                    this.onClose(\"transport close\", {\n                        description: \"network connection lost\",\n                    });\n                };\n                addEventListener(\"offline\", this.offlineEventListener, false);\n            }\n        }\n        this.open();\n    }\n    /**\n     * Creates transport of the given type.\n     *\n     * @param {String} name - transport name\n     * @return {Transport}\n     * @private\n     */\n    createTransport(name) {\n        const query = Object.assign({}, this.opts.query);\n        // append engine.io protocol identifier\n        query.EIO = protocol;\n        // transport name\n        query.transport = name;\n        // session id if we already have one\n        if (this.id)\n            query.sid = this.id;\n        const opts = Object.assign({}, this.opts, {\n            query,\n            socket: this,\n            hostname: this.hostname,\n            secure: this.secure,\n            port: this.port,\n        }, this.opts.transportOptions[name]);\n        return new transports[name](opts);\n    }\n    /**\n     * Initializes transport to use and starts probe.\n     *\n     * @private\n     */\n    open() {\n        let transport;\n        if (this.opts.rememberUpgrade &&\n            Socket.priorWebsocketSuccess &&\n            this.transports.indexOf(\"websocket\") !== -1) {\n            transport = \"websocket\";\n        }\n        else if (0 === this.transports.length) {\n            // Emit error on next tick so it can be listened to\n            this.setTimeoutFn(() => {\n                this.emitReserved(\"error\", \"No transports available\");\n            }, 0);\n            return;\n        }\n        else {\n            transport = this.transports[0];\n        }\n        this.readyState = \"opening\";\n        // Retry with the next transport if the transport is disabled (jsonp: false)\n        try {\n            transport = this.createTransport(transport);\n        }\n        catch (e) {\n            this.transports.shift();\n            this.open();\n            return;\n        }\n        transport.open();\n        this.setTransport(transport);\n    }\n    /**\n     * Sets the current transport. Disables the existing one (if any).\n     *\n     * @private\n     */\n    setTransport(transport) {\n        if (this.transport) {\n            this.transport.removeAllListeners();\n        }\n        // set up transport\n        this.transport = transport;\n        // set up transport listeners\n        transport\n            .on(\"drain\", this.onDrain.bind(this))\n            .on(\"packet\", this.onPacket.bind(this))\n            .on(\"error\", this.onError.bind(this))\n            .on(\"close\", (reason) => this.onClose(\"transport close\", reason));\n    }\n    /**\n     * Probes a transport.\n     *\n     * @param {String} name - transport name\n     * @private\n     */\n    probe(name) {\n        let transport = this.createTransport(name);\n        let failed = false;\n        Socket.priorWebsocketSuccess = false;\n        const onTransportOpen = () => {\n            if (failed)\n                return;\n            transport.send([{ type: \"ping\", data: \"probe\" }]);\n            transport.once(\"packet\", (msg) => {\n                if (failed)\n                    return;\n                if (\"pong\" === msg.type && \"probe\" === msg.data) {\n                    this.upgrading = true;\n                    this.emitReserved(\"upgrading\", transport);\n                    if (!transport)\n                        return;\n                    Socket.priorWebsocketSuccess = \"websocket\" === transport.name;\n                    this.transport.pause(() => {\n                        if (failed)\n                            return;\n                        if (\"closed\" === this.readyState)\n                            return;\n                        cleanup();\n                        this.setTransport(transport);\n                        transport.send([{ type: \"upgrade\" }]);\n                        this.emitReserved(\"upgrade\", transport);\n                        transport = null;\n                        this.upgrading = false;\n                        this.flush();\n                    });\n                }\n                else {\n                    const err = new Error(\"probe error\");\n                    // @ts-ignore\n                    err.transport = transport.name;\n                    this.emitReserved(\"upgradeError\", err);\n                }\n            });\n        };\n        function freezeTransport() {\n            if (failed)\n                return;\n            // Any callback called by transport should be ignored since now\n            failed = true;\n            cleanup();\n            transport.close();\n            transport = null;\n        }\n        // Handle any error that happens while probing\n        const onerror = (err) => {\n            const error = new Error(\"probe error: \" + err);\n            // @ts-ignore\n            error.transport = transport.name;\n            freezeTransport();\n            this.emitReserved(\"upgradeError\", error);\n        };\n        function onTransportClose() {\n            onerror(\"transport closed\");\n        }\n        // When the socket is closed while we're probing\n        function onclose() {\n            onerror(\"socket closed\");\n        }\n        // When the socket is upgraded while we're probing\n        function onupgrade(to) {\n            if (transport && to.name !== transport.name) {\n                freezeTransport();\n            }\n        }\n        // Remove all listeners on the transport and on self\n        const cleanup = () => {\n            transport.removeListener(\"open\", onTransportOpen);\n            transport.removeListener(\"error\", onerror);\n            transport.removeListener(\"close\", onTransportClose);\n            this.off(\"close\", onclose);\n            this.off(\"upgrading\", onupgrade);\n        };\n        transport.once(\"open\", onTransportOpen);\n        transport.once(\"error\", onerror);\n        transport.once(\"close\", onTransportClose);\n        this.once(\"close\", onclose);\n        this.once(\"upgrading\", onupgrade);\n        if (this.upgrades.indexOf(\"webtransport\") !== -1 &&\n            name !== \"webtransport\") {\n            // favor WebTransport\n            this.setTimeoutFn(() => {\n                if (!failed) {\n                    transport.open();\n                }\n            }, 200);\n        }\n        else {\n            transport.open();\n        }\n    }\n    /**\n     * Called when connection is deemed open.\n     *\n     * @private\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        Socket.priorWebsocketSuccess = \"websocket\" === this.transport.name;\n        this.emitReserved(\"open\");\n        this.flush();\n        // we check for `readyState` in case an `open`\n        // listener already closed the socket\n        if (\"open\" === this.readyState && this.opts.upgrade) {\n            let i = 0;\n            const l = this.upgrades.length;\n            for (; i < l; i++) {\n                this.probe(this.upgrades[i]);\n            }\n        }\n    }\n    /**\n     * Handles a packet.\n     *\n     * @private\n     */\n    onPacket(packet) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            this.emitReserved(\"packet\", packet);\n            // Socket is live - any packet counts\n            this.emitReserved(\"heartbeat\");\n            this.resetPingTimeout();\n            switch (packet.type) {\n                case \"open\":\n                    this.onHandshake(JSON.parse(packet.data));\n                    break;\n                case \"ping\":\n                    this.sendPacket(\"pong\");\n                    this.emitReserved(\"ping\");\n                    this.emitReserved(\"pong\");\n                    break;\n                case \"error\":\n                    const err = new Error(\"server error\");\n                    // @ts-ignore\n                    err.code = packet.data;\n                    this.onError(err);\n                    break;\n                case \"message\":\n                    this.emitReserved(\"data\", packet.data);\n                    this.emitReserved(\"message\", packet.data);\n                    break;\n            }\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon handshake completion.\n     *\n     * @param {Object} data - handshake obj\n     * @private\n     */\n    onHandshake(data) {\n        this.emitReserved(\"handshake\", data);\n        this.id = data.sid;\n        this.transport.query.sid = data.sid;\n        this.upgrades = this.filterUpgrades(data.upgrades);\n        this.pingInterval = data.pingInterval;\n        this.pingTimeout = data.pingTimeout;\n        this.maxPayload = data.maxPayload;\n        this.onOpen();\n        // In case open handler closes socket\n        if (\"closed\" === this.readyState)\n            return;\n        this.resetPingTimeout();\n    }\n    /**\n     * Sets and resets ping timeout timer based on server pings.\n     *\n     * @private\n     */\n    resetPingTimeout() {\n        this.clearTimeoutFn(this.pingTimeoutTimer);\n        this.pingTimeoutTimer = this.setTimeoutFn(() => {\n            this.onClose(\"ping timeout\");\n        }, this.pingInterval + this.pingTimeout);\n        if (this.opts.autoUnref) {\n            this.pingTimeoutTimer.unref();\n        }\n    }\n    /**\n     * Called on `drain` event\n     *\n     * @private\n     */\n    onDrain() {\n        this.writeBuffer.splice(0, this.prevBufferLen);\n        // setting prevBufferLen = 0 is very important\n        // for example, when upgrading, upgrade packet is sent over,\n        // and a nonzero prevBufferLen could cause problems on `drain`\n        this.prevBufferLen = 0;\n        if (0 === this.writeBuffer.length) {\n            this.emitReserved(\"drain\");\n        }\n        else {\n            this.flush();\n        }\n    }\n    /**\n     * Flush write buffers.\n     *\n     * @private\n     */\n    flush() {\n        if (\"closed\" !== this.readyState &&\n            this.transport.writable &&\n            !this.upgrading &&\n            this.writeBuffer.length) {\n            const packets = this.getWritablePackets();\n            this.transport.send(packets);\n            // keep track of current length of writeBuffer\n            // splice writeBuffer and callbackBuffer on `drain`\n            this.prevBufferLen = packets.length;\n            this.emitReserved(\"flush\");\n        }\n    }\n    /**\n     * Ensure the encoded size of the writeBuffer is below the maxPayload value sent by the server (only for HTTP\n     * long-polling)\n     *\n     * @private\n     */\n    getWritablePackets() {\n        const shouldCheckPayloadSize = this.maxPayload &&\n            this.transport.name === \"polling\" &&\n            this.writeBuffer.length > 1;\n        if (!shouldCheckPayloadSize) {\n            return this.writeBuffer;\n        }\n        let payloadSize = 1; // first packet type\n        for (let i = 0; i < this.writeBuffer.length; i++) {\n            const data = this.writeBuffer[i].data;\n            if (data) {\n                payloadSize += byteLength(data);\n            }\n            if (i > 0 && payloadSize > this.maxPayload) {\n                return this.writeBuffer.slice(0, i);\n            }\n            payloadSize += 2; // separator + packet type\n        }\n        return this.writeBuffer;\n    }\n    /**\n     * Sends a message.\n     *\n     * @param {String} msg - message.\n     * @param {Object} options.\n     * @param {Function} callback function.\n     * @return {Socket} for chaining.\n     */\n    write(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    send(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param {String} type: packet type.\n     * @param {String} data.\n     * @param {Object} options.\n     * @param {Function} fn - callback function.\n     * @private\n     */\n    sendPacket(type, data, options, fn) {\n        if (\"function\" === typeof data) {\n            fn = data;\n            data = undefined;\n        }\n        if (\"function\" === typeof options) {\n            fn = options;\n            options = null;\n        }\n        if (\"closing\" === this.readyState || \"closed\" === this.readyState) {\n            return;\n        }\n        options = options || {};\n        options.compress = false !== options.compress;\n        const packet = {\n            type: type,\n            data: data,\n            options: options,\n        };\n        this.emitReserved(\"packetCreate\", packet);\n        this.writeBuffer.push(packet);\n        if (fn)\n            this.once(\"flush\", fn);\n        this.flush();\n    }\n    /**\n     * Closes the connection.\n     */\n    close() {\n        const close = () => {\n            this.onClose(\"forced close\");\n            this.transport.close();\n        };\n        const cleanupAndClose = () => {\n            this.off(\"upgrade\", cleanupAndClose);\n            this.off(\"upgradeError\", cleanupAndClose);\n            close();\n        };\n        const waitForUpgrade = () => {\n            // wait for upgrade to finish since we can't send packets while pausing a transport\n            this.once(\"upgrade\", cleanupAndClose);\n            this.once(\"upgradeError\", cleanupAndClose);\n        };\n        if (\"opening\" === this.readyState || \"open\" === this.readyState) {\n            this.readyState = \"closing\";\n            if (this.writeBuffer.length) {\n                this.once(\"drain\", () => {\n                    if (this.upgrading) {\n                        waitForUpgrade();\n                    }\n                    else {\n                        close();\n                    }\n                });\n            }\n            else if (this.upgrading) {\n                waitForUpgrade();\n            }\n            else {\n                close();\n            }\n        }\n        return this;\n    }\n    /**\n     * Called upon transport error\n     *\n     * @private\n     */\n    onError(err) {\n        Socket.priorWebsocketSuccess = false;\n        this.emitReserved(\"error\", err);\n        this.onClose(\"transport error\", err);\n    }\n    /**\n     * Called upon transport close.\n     *\n     * @private\n     */\n    onClose(reason, description) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            // clear timers\n            this.clearTimeoutFn(this.pingTimeoutTimer);\n            // stop event from firing again for transport\n            this.transport.removeAllListeners(\"close\");\n            // ensure transport won't stay open\n            this.transport.close();\n            // ignore further transport communication\n            this.transport.removeAllListeners();\n            if (typeof removeEventListener === \"function\") {\n                removeEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n                removeEventListener(\"offline\", this.offlineEventListener, false);\n            }\n            // set ready state\n            this.readyState = \"closed\";\n            // clear session id\n            this.id = null;\n            // emit close event\n            this.emitReserved(\"close\", reason, description);\n            // clean buffers after, so users can still\n            // grab the buffers on `close` event\n            this.writeBuffer = [];\n            this.prevBufferLen = 0;\n        }\n    }\n    /**\n     * Filters upgrades, returning only those matching client transports.\n     *\n     * @param {Array} upgrades - server upgrades\n     * @private\n     */\n    filterUpgrades(upgrades) {\n        const filteredUpgrades = [];\n        let i = 0;\n        const j = upgrades.length;\n        for (; i < j; i++) {\n            if (~this.transports.indexOf(upgrades[i]))\n                filteredUpgrades.push(upgrades[i]);\n        }\n        return filteredUpgrades;\n    }\n}\nSocket.protocol = protocol;\n", "import { Socket } from \"./socket.js\";\nexport { Socket };\nexport const protocol = Socket.protocol;\nexport { Transport, TransportError } from \"./transport.js\";\nexport { transports } from \"./transports/index.js\";\nexport { installTimerFunctions } from \"./util.js\";\nexport { parse } from \"./contrib/parseuri.js\";\nexport { nextTick } from \"./transports/websocket-constructor.js\";\n", "import { parse } from \"engine.io-client\";\n/**\n * URL parser.\n *\n * @param uri - url\n * @param path - the request path of the connection\n * @param loc - An object meant to mimic window.location.\n *        Defaults to window.location.\n * @public\n */\nexport function url(uri, path = \"\", loc) {\n    let obj = uri;\n    // default to window.location\n    loc = loc || (typeof location !== \"undefined\" && location);\n    if (null == uri)\n        uri = loc.protocol + \"//\" + loc.host;\n    // relative path support\n    if (typeof uri === \"string\") {\n        if (\"/\" === uri.charAt(0)) {\n            if (\"/\" === uri.charAt(1)) {\n                uri = loc.protocol + uri;\n            }\n            else {\n                uri = loc.host + uri;\n            }\n        }\n        if (!/^(https?|wss?):\\/\\//.test(uri)) {\n            if (\"undefined\" !== typeof loc) {\n                uri = loc.protocol + \"//\" + uri;\n            }\n            else {\n                uri = \"https://\" + uri;\n            }\n        }\n        // parse\n        obj = parse(uri);\n    }\n    // make sure we treat `localhost:80` and `localhost` equally\n    if (!obj.port) {\n        if (/^(http|ws)$/.test(obj.protocol)) {\n            obj.port = \"80\";\n        }\n        else if (/^(http|ws)s$/.test(obj.protocol)) {\n            obj.port = \"443\";\n        }\n    }\n    obj.path = obj.path || \"/\";\n    const ipv6 = obj.host.indexOf(\":\") !== -1;\n    const host = ipv6 ? \"[\" + obj.host + \"]\" : obj.host;\n    // define unique id\n    obj.id = obj.protocol + \"://\" + host + \":\" + obj.port + path;\n    // define href\n    obj.href =\n        obj.protocol +\n            \"://\" +\n            host +\n            (loc && loc.port === obj.port ? \"\" : \":\" + obj.port);\n    return obj;\n}\n", "import { Emitter } from \"@socket.io/component-emitter\";\nimport { deconstructPacket, reconstructPacket } from \"./binary.js\";\nimport { isBinary, hasBinary } from \"./is-binary.js\";\n/**\n * These strings must not be used as event names, as they have a special meaning.\n */\nconst RESERVED_EVENTS = [\n    \"connect\",\n    \"connect_error\",\n    \"disconnect\",\n    \"disconnecting\",\n    \"newListener\",\n    \"removeListener\", // used by the Node.js EventEmitter\n];\n/**\n * Protocol version.\n *\n * @public\n */\nexport const protocol = 5;\nexport var PacketType;\n(function (PacketType) {\n    PacketType[PacketType[\"CONNECT\"] = 0] = \"CONNECT\";\n    PacketType[PacketType[\"DISCONNECT\"] = 1] = \"DISCONNECT\";\n    PacketType[PacketType[\"EVENT\"] = 2] = \"EVENT\";\n    PacketType[PacketType[\"ACK\"] = 3] = \"ACK\";\n    PacketType[PacketType[\"CONNECT_ERROR\"] = 4] = \"CONNECT_ERROR\";\n    PacketType[PacketType[\"BINARY_EVENT\"] = 5] = \"BINARY_EVENT\";\n    PacketType[PacketType[\"BINARY_ACK\"] = 6] = \"BINARY_ACK\";\n})(PacketType || (PacketType = {}));\n/**\n * A socket.io Encoder instance\n */\nexport class Encoder {\n    /**\n     * Encoder constructor\n     *\n     * @param {function} replacer - custom replacer to pass down to JSON.parse\n     */\n    constructor(replacer) {\n        this.replacer = replacer;\n    }\n    /**\n     * Encode a packet as a single string if non-binary, or as a\n     * buffer sequence, depending on packet type.\n     *\n     * @param {Object} obj - packet object\n     */\n    encode(obj) {\n        if (obj.type === PacketType.EVENT || obj.type === PacketType.ACK) {\n            if (hasBinary(obj)) {\n                return this.encodeAsBinary({\n                    type: obj.type === PacketType.EVENT\n                        ? PacketType.BINARY_EVENT\n                        : PacketType.BINARY_ACK,\n                    nsp: obj.nsp,\n                    data: obj.data,\n                    id: obj.id,\n                });\n            }\n        }\n        return [this.encodeAsString(obj)];\n    }\n    /**\n     * Encode packet as string.\n     */\n    encodeAsString(obj) {\n        // first is type\n        let str = \"\" + obj.type;\n        // attachments if we have them\n        if (obj.type === PacketType.BINARY_EVENT ||\n            obj.type === PacketType.BINARY_ACK) {\n            str += obj.attachments + \"-\";\n        }\n        // if we have a namespace other than `/`\n        // we append it followed by a comma `,`\n        if (obj.nsp && \"/\" !== obj.nsp) {\n            str += obj.nsp + \",\";\n        }\n        // immediately followed by the id\n        if (null != obj.id) {\n            str += obj.id;\n        }\n        // json data\n        if (null != obj.data) {\n            str += JSON.stringify(obj.data, this.replacer);\n        }\n        return str;\n    }\n    /**\n     * Encode packet as 'buffer sequence' by removing blobs, and\n     * deconstructing packet into object with placeholders and\n     * a list of buffers.\n     */\n    encodeAsBinary(obj) {\n        const deconstruction = deconstructPacket(obj);\n        const pack = this.encodeAsString(deconstruction.packet);\n        const buffers = deconstruction.buffers;\n        buffers.unshift(pack); // add packet info to beginning of data list\n        return buffers; // write all the buffers\n    }\n}\n// see https://stackoverflow.com/questions/8511281/check-if-a-value-is-an-object-in-javascript\nfunction isObject(value) {\n    return Object.prototype.toString.call(value) === \"[object Object]\";\n}\n/**\n * A socket.io Decoder instance\n *\n * @return {Object} decoder\n */\nexport class Decoder extends Emitter {\n    /**\n     * Decoder constructor\n     *\n     * @param {function} reviver - custom reviver to pass down to JSON.stringify\n     */\n    constructor(reviver) {\n        super();\n        this.reviver = reviver;\n    }\n    /**\n     * Decodes an encoded packet string into packet JSON.\n     *\n     * @param {String} obj - encoded packet\n     */\n    add(obj) {\n        let packet;\n        if (typeof obj === \"string\") {\n            if (this.reconstructor) {\n                throw new Error(\"got plaintext data when reconstructing a packet\");\n            }\n            packet = this.decodeString(obj);\n            const isBinaryEvent = packet.type === PacketType.BINARY_EVENT;\n            if (isBinaryEvent || packet.type === PacketType.BINARY_ACK) {\n                packet.type = isBinaryEvent ? PacketType.EVENT : PacketType.ACK;\n                // binary packet's json\n                this.reconstructor = new BinaryReconstructor(packet);\n                // no attachments, labeled binary but no binary data to follow\n                if (packet.attachments === 0) {\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n            else {\n                // non-binary full packet\n                super.emitReserved(\"decoded\", packet);\n            }\n        }\n        else if (isBinary(obj) || obj.base64) {\n            // raw binary data\n            if (!this.reconstructor) {\n                throw new Error(\"got binary data when not reconstructing a packet\");\n            }\n            else {\n                packet = this.reconstructor.takeBinaryData(obj);\n                if (packet) {\n                    // received final buffer\n                    this.reconstructor = null;\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n        }\n        else {\n            throw new Error(\"Unknown type: \" + obj);\n        }\n    }\n    /**\n     * Decode a packet String (JSON data)\n     *\n     * @param {String} str\n     * @return {Object} packet\n     */\n    decodeString(str) {\n        let i = 0;\n        // look up type\n        const p = {\n            type: Number(str.charAt(0)),\n        };\n        if (PacketType[p.type] === undefined) {\n            throw new Error(\"unknown packet type \" + p.type);\n        }\n        // look up attachments if type binary\n        if (p.type === PacketType.BINARY_EVENT ||\n            p.type === PacketType.BINARY_ACK) {\n            const start = i + 1;\n            while (str.charAt(++i) !== \"-\" && i != str.length) { }\n            const buf = str.substring(start, i);\n            if (buf != Number(buf) || str.charAt(i) !== \"-\") {\n                throw new Error(\"Illegal attachments\");\n            }\n            p.attachments = Number(buf);\n        }\n        // look up namespace (if any)\n        if (\"/\" === str.charAt(i + 1)) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (\",\" === c)\n                    break;\n                if (i === str.length)\n                    break;\n            }\n            p.nsp = str.substring(start, i);\n        }\n        else {\n            p.nsp = \"/\";\n        }\n        // look up id\n        const next = str.charAt(i + 1);\n        if (\"\" !== next && Number(next) == next) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (null == c || Number(c) != c) {\n                    --i;\n                    break;\n                }\n                if (i === str.length)\n                    break;\n            }\n            p.id = Number(str.substring(start, i + 1));\n        }\n        // look up json data\n        if (str.charAt(++i)) {\n            const payload = this.tryParse(str.substr(i));\n            if (Decoder.isPayloadValid(p.type, payload)) {\n                p.data = payload;\n            }\n            else {\n                throw new Error(\"invalid payload\");\n            }\n        }\n        return p;\n    }\n    tryParse(str) {\n        try {\n            return JSON.parse(str, this.reviver);\n        }\n        catch (e) {\n            return false;\n        }\n    }\n    static isPayloadValid(type, payload) {\n        switch (type) {\n            case PacketType.CONNECT:\n                return isObject(payload);\n            case PacketType.DISCONNECT:\n                return payload === undefined;\n            case PacketType.CONNECT_ERROR:\n                return typeof payload === \"string\" || isObject(payload);\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                return (Array.isArray(payload) &&\n                    (typeof payload[0] === \"number\" ||\n                        (typeof payload[0] === \"string\" &&\n                            RESERVED_EVENTS.indexOf(payload[0]) === -1)));\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                return Array.isArray(payload);\n        }\n    }\n    /**\n     * Deallocates a parser's resources\n     */\n    destroy() {\n        if (this.reconstructor) {\n            this.reconstructor.finishedReconstruction();\n            this.reconstructor = null;\n        }\n    }\n}\n/**\n * A manager of a binary event's 'buffer sequence'. Should\n * be constructed whenever a packet of type BINARY_EVENT is\n * decoded.\n *\n * @param {Object} packet\n * @return {BinaryReconstructor} initialized reconstructor\n */\nclass BinaryReconstructor {\n    constructor(packet) {\n        this.packet = packet;\n        this.buffers = [];\n        this.reconPack = packet;\n    }\n    /**\n     * Method to be called when binary data received from connection\n     * after a BINARY_EVENT packet.\n     *\n     * @param {Buffer | ArrayBuffer} binData - the raw binary data received\n     * @return {null | Object} returns null if more binary data is expected or\n     *   a reconstructed packet object if all buffers have been received.\n     */\n    takeBinaryData(binData) {\n        this.buffers.push(binData);\n        if (this.buffers.length === this.reconPack.attachments) {\n            // done with buffer list\n            const packet = reconstructPacket(this.reconPack, this.buffers);\n            this.finishedReconstruction();\n            return packet;\n        }\n        return null;\n    }\n    /**\n     * Cleans up binary packet reconstruction variables.\n     */\n    finishedReconstruction() {\n        this.reconPack = null;\n        this.buffers = [];\n    }\n}\n", "const withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nconst isView = (obj) => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj.buffer instanceof ArrayBuffer;\n};\nconst toString = Object.prototype.toString;\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeFile = typeof File === \"function\" ||\n    (typeof File !== \"undefined\" &&\n        toString.call(File) === \"[object FileConstructor]\");\n/**\n * Returns true if obj is a Buffer, an ArrayBuffer, a Blob or a File.\n *\n * @private\n */\nexport function isBinary(obj) {\n    return ((withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj))) ||\n        (withNativeBlob && obj instanceof Blob) ||\n        (withNativeFile && obj instanceof File));\n}\nexport function hasBinary(obj, toJSON) {\n    if (!obj || typeof obj !== \"object\") {\n        return false;\n    }\n    if (Array.isArray(obj)) {\n        for (let i = 0, l = obj.length; i < l; i++) {\n            if (hasBinary(obj[i])) {\n                return true;\n            }\n        }\n        return false;\n    }\n    if (isBinary(obj)) {\n        return true;\n    }\n    if (obj.toJSON &&\n        typeof obj.toJSON === \"function\" &&\n        arguments.length === 1) {\n        return hasBinary(obj.toJSON(), true);\n    }\n    for (const key in obj) {\n        if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {\n            return true;\n        }\n    }\n    return false;\n}\n", "import { isBinary } from \"./is-binary.js\";\n/**\n * Replaces every Buffer | ArrayBuffer | Blob | File in packet with a numbered placeholder.\n *\n * @param {Object} packet - socket.io event packet\n * @return {Object} with deconstructed packet and list of buffers\n * @public\n */\nexport function deconstructPacket(packet) {\n    const buffers = [];\n    const packetData = packet.data;\n    const pack = packet;\n    pack.data = _deconstructPacket(packetData, buffers);\n    pack.attachments = buffers.length; // number of binary 'attachments'\n    return { packet: pack, buffers: buffers };\n}\nfunction _deconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (isBinary(data)) {\n        const placeholder = { _placeholder: true, num: buffers.length };\n        buffers.push(data);\n        return placeholder;\n    }\n    else if (Array.isArray(data)) {\n        const newData = new Array(data.length);\n        for (let i = 0; i < data.length; i++) {\n            newData[i] = _deconstructPacket(data[i], buffers);\n        }\n        return newData;\n    }\n    else if (typeof data === \"object\" && !(data instanceof Date)) {\n        const newData = {};\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                newData[key] = _deconstructPacket(data[key], buffers);\n            }\n        }\n        return newData;\n    }\n    return data;\n}\n/**\n * Reconstructs a binary packet from its placeholder packet and buffers\n *\n * @param {Object} packet - event packet with placeholders\n * @param {Array} buffers - binary buffers to put in placeholder positions\n * @return {Object} reconstructed packet\n * @public\n */\nexport function reconstructPacket(packet, buffers) {\n    packet.data = _reconstructPacket(packet.data, buffers);\n    delete packet.attachments; // no longer useful\n    return packet;\n}\nfunction _reconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (data && data._placeholder === true) {\n        const isIndexValid = typeof data.num === \"number\" &&\n            data.num >= 0 &&\n            data.num < buffers.length;\n        if (isIndexValid) {\n            return buffers[data.num]; // appropriate buffer (should be natural order anyway)\n        }\n        else {\n            throw new Error(\"illegal attachments\");\n        }\n    }\n    else if (Array.isArray(data)) {\n        for (let i = 0; i < data.length; i++) {\n            data[i] = _reconstructPacket(data[i], buffers);\n        }\n    }\n    else if (typeof data === \"object\") {\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                data[key] = _reconstructPacket(data[key], buffers);\n            }\n        }\n    }\n    return data;\n}\n", "export function on(obj, ev, fn) {\n    obj.on(ev, fn);\n    return function subDestroy() {\n        obj.off(ev, fn);\n    };\n}\n", "import { PacketType } from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\n/**\n * Internal events.\n * These events can't be emitted by the user.\n */\nconst RESERVED_EVENTS = Object.freeze({\n    connect: 1,\n    connect_error: 1,\n    disconnect: 1,\n    disconnecting: 1,\n    // EventEmitter reserved events: https://nodejs.org/api/events.html#events_event_newlistener\n    newListener: 1,\n    removeListener: 1,\n});\n/**\n * A Socket is the fundamental class for interacting with the server.\n *\n * A Socket belongs to a certain Namespace (by default /) and uses an underlying {@link Manager} to communicate.\n *\n * @example\n * const socket = io();\n *\n * socket.on(\"connect\", () => {\n *   console.log(\"connected\");\n * });\n *\n * // send an event to the server\n * socket.emit(\"foo\", \"bar\");\n *\n * socket.on(\"foobar\", () => {\n *   // an event was received from the server\n * });\n *\n * // upon disconnection\n * socket.on(\"disconnect\", (reason) => {\n *   console.log(`disconnected due to ${reason}`);\n * });\n */\nexport class Socket extends Emitter {\n    /**\n     * `Socket` constructor.\n     */\n    constructor(io, nsp, opts) {\n        super();\n        /**\n         * Whether the socket is currently connected to the server.\n         *\n         * @example\n         * const socket = io();\n         *\n         * socket.on(\"connect\", () => {\n         *   console.log(socket.connected); // true\n         * });\n         *\n         * socket.on(\"disconnect\", () => {\n         *   console.log(socket.connected); // false\n         * });\n         */\n        this.connected = false;\n        /**\n         * Whether the connection state was recovered after a temporary disconnection. In that case, any missed packets will\n         * be transmitted by the server.\n         */\n        this.recovered = false;\n        /**\n         * Buffer for packets received before the CONNECT packet\n         */\n        this.receiveBuffer = [];\n        /**\n         * Buffer for packets that will be sent once the socket is connected\n         */\n        this.sendBuffer = [];\n        /**\n         * The queue of packets to be sent with retry in case of failure.\n         *\n         * Packets are sent one by one, each waiting for the server acknowledgement, in order to guarantee the delivery order.\n         * @private\n         */\n        this._queue = [];\n        /**\n         * A sequence to generate the ID of the {@link QueuedPacket}.\n         * @private\n         */\n        this._queueSeq = 0;\n        this.ids = 0;\n        this.acks = {};\n        this.flags = {};\n        this.io = io;\n        this.nsp = nsp;\n        if (opts && opts.auth) {\n            this.auth = opts.auth;\n        }\n        this._opts = Object.assign({}, opts);\n        if (this.io._autoConnect)\n            this.open();\n    }\n    /**\n     * Whether the socket is currently disconnected\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"connect\", () => {\n     *   console.log(socket.disconnected); // false\n     * });\n     *\n     * socket.on(\"disconnect\", () => {\n     *   console.log(socket.disconnected); // true\n     * });\n     */\n    get disconnected() {\n        return !this.connected;\n    }\n    /**\n     * Subscribe to open, close and packet events\n     *\n     * @private\n     */\n    subEvents() {\n        if (this.subs)\n            return;\n        const io = this.io;\n        this.subs = [\n            on(io, \"open\", this.onopen.bind(this)),\n            on(io, \"packet\", this.onpacket.bind(this)),\n            on(io, \"error\", this.onerror.bind(this)),\n            on(io, \"close\", this.onclose.bind(this)),\n        ];\n    }\n    /**\n     * Whether the Socket will try to reconnect when its Manager connects or reconnects.\n     *\n     * @example\n     * const socket = io();\n     *\n     * console.log(socket.active); // true\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   if (reason === \"io server disconnect\") {\n     *     // the disconnection was initiated by the server, you need to manually reconnect\n     *     console.log(socket.active); // false\n     *   }\n     *   // else the socket will automatically try to reconnect\n     *   console.log(socket.active); // true\n     * });\n     */\n    get active() {\n        return !!this.subs;\n    }\n    /**\n     * \"Opens\" the socket.\n     *\n     * @example\n     * const socket = io({\n     *   autoConnect: false\n     * });\n     *\n     * socket.connect();\n     */\n    connect() {\n        if (this.connected)\n            return this;\n        this.subEvents();\n        if (!this.io[\"_reconnecting\"])\n            this.io.open(); // ensure open\n        if (\"open\" === this.io._readyState)\n            this.onopen();\n        return this;\n    }\n    /**\n     * Alias for {@link connect()}.\n     */\n    open() {\n        return this.connect();\n    }\n    /**\n     * Sends a `message` event.\n     *\n     * This method mimics the WebSocket.send() method.\n     *\n     * @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send\n     *\n     * @example\n     * socket.send(\"hello\");\n     *\n     * // this is equivalent to\n     * socket.emit(\"message\", \"hello\");\n     *\n     * @return self\n     */\n    send(...args) {\n        args.unshift(\"message\");\n        this.emit.apply(this, args);\n        return this;\n    }\n    /**\n     * Override `emit`.\n     * If the event is in `events`, it's emitted normally.\n     *\n     * @example\n     * socket.emit(\"hello\", \"world\");\n     *\n     * // all serializable datastructures are supported (no need to call JSON.stringify)\n     * socket.emit(\"hello\", 1, \"2\", { 3: [\"4\"], 5: Uint8Array.from([6]) });\n     *\n     * // with an acknowledgement from the server\n     * socket.emit(\"hello\", \"world\", (val) => {\n     *   // ...\n     * });\n     *\n     * @return self\n     */\n    emit(ev, ...args) {\n        if (RESERVED_EVENTS.hasOwnProperty(ev)) {\n            throw new Error('\"' + ev.toString() + '\" is a reserved event name');\n        }\n        args.unshift(ev);\n        if (this._opts.retries && !this.flags.fromQueue && !this.flags.volatile) {\n            this._addToQueue(args);\n            return this;\n        }\n        const packet = {\n            type: PacketType.EVENT,\n            data: args,\n        };\n        packet.options = {};\n        packet.options.compress = this.flags.compress !== false;\n        // event ack callback\n        if (\"function\" === typeof args[args.length - 1]) {\n            const id = this.ids++;\n            const ack = args.pop();\n            this._registerAckCallback(id, ack);\n            packet.id = id;\n        }\n        const isTransportWritable = this.io.engine &&\n            this.io.engine.transport &&\n            this.io.engine.transport.writable;\n        const discardPacket = this.flags.volatile && (!isTransportWritable || !this.connected);\n        if (discardPacket) {\n        }\n        else if (this.connected) {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        }\n        else {\n            this.sendBuffer.push(packet);\n        }\n        this.flags = {};\n        return this;\n    }\n    /**\n     * @private\n     */\n    _registerAckCallback(id, ack) {\n        var _a;\n        const timeout = (_a = this.flags.timeout) !== null && _a !== void 0 ? _a : this._opts.ackTimeout;\n        if (timeout === undefined) {\n            this.acks[id] = ack;\n            return;\n        }\n        // @ts-ignore\n        const timer = this.io.setTimeoutFn(() => {\n            delete this.acks[id];\n            for (let i = 0; i < this.sendBuffer.length; i++) {\n                if (this.sendBuffer[i].id === id) {\n                    this.sendBuffer.splice(i, 1);\n                }\n            }\n            ack.call(this, new Error(\"operation has timed out\"));\n        }, timeout);\n        this.acks[id] = (...args) => {\n            // @ts-ignore\n            this.io.clearTimeoutFn(timer);\n            ack.apply(this, [null, ...args]);\n        };\n    }\n    /**\n     * Emits an event and waits for an acknowledgement\n     *\n     * @example\n     * // without timeout\n     * const response = await socket.emitWithAck(\"hello\", \"world\");\n     *\n     * // with a specific timeout\n     * try {\n     *   const response = await socket.timeout(1000).emitWithAck(\"hello\", \"world\");\n     * } catch (err) {\n     *   // the server did not acknowledge the event in the given delay\n     * }\n     *\n     * @return a Promise that will be fulfilled when the server acknowledges the event\n     */\n    emitWithAck(ev, ...args) {\n        // the timeout flag is optional\n        const withErr = this.flags.timeout !== undefined || this._opts.ackTimeout !== undefined;\n        return new Promise((resolve, reject) => {\n            args.push((arg1, arg2) => {\n                if (withErr) {\n                    return arg1 ? reject(arg1) : resolve(arg2);\n                }\n                else {\n                    return resolve(arg1);\n                }\n            });\n            this.emit(ev, ...args);\n        });\n    }\n    /**\n     * Add the packet to the queue.\n     * @param args\n     * @private\n     */\n    _addToQueue(args) {\n        let ack;\n        if (typeof args[args.length - 1] === \"function\") {\n            ack = args.pop();\n        }\n        const packet = {\n            id: this._queueSeq++,\n            tryCount: 0,\n            pending: false,\n            args,\n            flags: Object.assign({ fromQueue: true }, this.flags),\n        };\n        args.push((err, ...responseArgs) => {\n            if (packet !== this._queue[0]) {\n                // the packet has already been acknowledged\n                return;\n            }\n            const hasError = err !== null;\n            if (hasError) {\n                if (packet.tryCount > this._opts.retries) {\n                    this._queue.shift();\n                    if (ack) {\n                        ack(err);\n                    }\n                }\n            }\n            else {\n                this._queue.shift();\n                if (ack) {\n                    ack(null, ...responseArgs);\n                }\n            }\n            packet.pending = false;\n            return this._drainQueue();\n        });\n        this._queue.push(packet);\n        this._drainQueue();\n    }\n    /**\n     * Send the first packet of the queue, and wait for an acknowledgement from the server.\n     * @param force - whether to resend a packet that has not been acknowledged yet\n     *\n     * @private\n     */\n    _drainQueue(force = false) {\n        if (!this.connected || this._queue.length === 0) {\n            return;\n        }\n        const packet = this._queue[0];\n        if (packet.pending && !force) {\n            return;\n        }\n        packet.pending = true;\n        packet.tryCount++;\n        this.flags = packet.flags;\n        this.emit.apply(this, packet.args);\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param packet\n     * @private\n     */\n    packet(packet) {\n        packet.nsp = this.nsp;\n        this.io._packet(packet);\n    }\n    /**\n     * Called upon engine `open`.\n     *\n     * @private\n     */\n    onopen() {\n        if (typeof this.auth == \"function\") {\n            this.auth((data) => {\n                this._sendConnectPacket(data);\n            });\n        }\n        else {\n            this._sendConnectPacket(this.auth);\n        }\n    }\n    /**\n     * Sends a CONNECT packet to initiate the Socket.IO session.\n     *\n     * @param data\n     * @private\n     */\n    _sendConnectPacket(data) {\n        this.packet({\n            type: PacketType.CONNECT,\n            data: this._pid\n                ? Object.assign({ pid: this._pid, offset: this._lastOffset }, data)\n                : data,\n        });\n    }\n    /**\n     * Called upon engine or manager `error`.\n     *\n     * @param err\n     * @private\n     */\n    onerror(err) {\n        if (!this.connected) {\n            this.emitReserved(\"connect_error\", err);\n        }\n    }\n    /**\n     * Called upon engine `close`.\n     *\n     * @param reason\n     * @param description\n     * @private\n     */\n    onclose(reason, description) {\n        this.connected = false;\n        delete this.id;\n        this.emitReserved(\"disconnect\", reason, description);\n    }\n    /**\n     * Called with socket packet.\n     *\n     * @param packet\n     * @private\n     */\n    onpacket(packet) {\n        const sameNamespace = packet.nsp === this.nsp;\n        if (!sameNamespace)\n            return;\n        switch (packet.type) {\n            case PacketType.CONNECT:\n                if (packet.data && packet.data.sid) {\n                    this.onconnect(packet.data.sid, packet.data.pid);\n                }\n                else {\n                    this.emitReserved(\"connect_error\", new Error(\"It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)\"));\n                }\n                break;\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                this.onevent(packet);\n                break;\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                this.onack(packet);\n                break;\n            case PacketType.DISCONNECT:\n                this.ondisconnect();\n                break;\n            case PacketType.CONNECT_ERROR:\n                this.destroy();\n                const err = new Error(packet.data.message);\n                // @ts-ignore\n                err.data = packet.data.data;\n                this.emitReserved(\"connect_error\", err);\n                break;\n        }\n    }\n    /**\n     * Called upon a server event.\n     *\n     * @param packet\n     * @private\n     */\n    onevent(packet) {\n        const args = packet.data || [];\n        if (null != packet.id) {\n            args.push(this.ack(packet.id));\n        }\n        if (this.connected) {\n            this.emitEvent(args);\n        }\n        else {\n            this.receiveBuffer.push(Object.freeze(args));\n        }\n    }\n    emitEvent(args) {\n        if (this._anyListeners && this._anyListeners.length) {\n            const listeners = this._anyListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, args);\n            }\n        }\n        super.emit.apply(this, args);\n        if (this._pid && args.length && typeof args[args.length - 1] === \"string\") {\n            this._lastOffset = args[args.length - 1];\n        }\n    }\n    /**\n     * Produces an ack callback to emit with an event.\n     *\n     * @private\n     */\n    ack(id) {\n        const self = this;\n        let sent = false;\n        return function (...args) {\n            // prevent double callbacks\n            if (sent)\n                return;\n            sent = true;\n            self.packet({\n                type: PacketType.ACK,\n                id: id,\n                data: args,\n            });\n        };\n    }\n    /**\n     * Called upon a server acknowlegement.\n     *\n     * @param packet\n     * @private\n     */\n    onack(packet) {\n        const ack = this.acks[packet.id];\n        if (\"function\" === typeof ack) {\n            ack.apply(this, packet.data);\n            delete this.acks[packet.id];\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon server connect.\n     *\n     * @private\n     */\n    onconnect(id, pid) {\n        this.id = id;\n        this.recovered = pid && this._pid === pid;\n        this._pid = pid; // defined only if connection state recovery is enabled\n        this.connected = true;\n        this.emitBuffered();\n        this.emitReserved(\"connect\");\n        this._drainQueue(true);\n    }\n    /**\n     * Emit buffered events (received and emitted).\n     *\n     * @private\n     */\n    emitBuffered() {\n        this.receiveBuffer.forEach((args) => this.emitEvent(args));\n        this.receiveBuffer = [];\n        this.sendBuffer.forEach((packet) => {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        });\n        this.sendBuffer = [];\n    }\n    /**\n     * Called upon server disconnect.\n     *\n     * @private\n     */\n    ondisconnect() {\n        this.destroy();\n        this.onclose(\"io server disconnect\");\n    }\n    /**\n     * Called upon forced client/server side disconnections,\n     * this method ensures the manager stops tracking us and\n     * that reconnections don't get triggered for this.\n     *\n     * @private\n     */\n    destroy() {\n        if (this.subs) {\n            // clean subscriptions to avoid reconnections\n            this.subs.forEach((subDestroy) => subDestroy());\n            this.subs = undefined;\n        }\n        this.io[\"_destroy\"](this);\n    }\n    /**\n     * Disconnects the socket manually. In that case, the socket will not try to reconnect.\n     *\n     * If this is the last active Socket instance of the {@link Manager}, the low-level connection will be closed.\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   // console.log(reason); prints \"io client disconnect\"\n     * });\n     *\n     * socket.disconnect();\n     *\n     * @return self\n     */\n    disconnect() {\n        if (this.connected) {\n            this.packet({ type: PacketType.DISCONNECT });\n        }\n        // remove socket from pool\n        this.destroy();\n        if (this.connected) {\n            // fire events\n            this.onclose(\"io client disconnect\");\n        }\n        return this;\n    }\n    /**\n     * Alias for {@link disconnect()}.\n     *\n     * @return self\n     */\n    close() {\n        return this.disconnect();\n    }\n    /**\n     * Sets the compress flag.\n     *\n     * @example\n     * socket.compress(false).emit(\"hello\");\n     *\n     * @param compress - if `true`, compresses the sending data\n     * @return self\n     */\n    compress(compress) {\n        this.flags.compress = compress;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the event message will be dropped when this socket is not\n     * ready to send messages.\n     *\n     * @example\n     * socket.volatile.emit(\"hello\"); // the server may or may not receive it\n     *\n     * @returns self\n     */\n    get volatile() {\n        this.flags.volatile = true;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the callback will be called with an error when the\n     * given number of milliseconds have elapsed without an acknowledgement from the server:\n     *\n     * @example\n     * socket.timeout(5000).emit(\"my-event\", (err) => {\n     *   if (err) {\n     *     // the server did not acknowledge the event in the given delay\n     *   }\n     * });\n     *\n     * @returns self\n     */\n    timeout(timeout) {\n        this.flags.timeout = timeout;\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * @example\n     * socket.onAny((event, ...args) => {\n     *   console.log(`got ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * @example\n     * socket.prependAny((event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * }\n     *\n     * socket.onAny(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAny(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAny();\n     *\n     * @param listener\n     */\n    offAny(listener) {\n        if (!this._anyListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAny() {\n        return this._anyListeners || [];\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.onAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.prependAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * }\n     *\n     * socket.onAnyOutgoing(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAnyOutgoing(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAnyOutgoing();\n     *\n     * @param [listener] - the catch-all listener (optional)\n     */\n    offAnyOutgoing(listener) {\n        if (!this._anyOutgoingListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyOutgoingListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyOutgoingListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAnyOutgoing() {\n        return this._anyOutgoingListeners || [];\n    }\n    /**\n     * Notify the listeners for each packet sent\n     *\n     * @param packet\n     *\n     * @private\n     */\n    notifyOutgoingListeners(packet) {\n        if (this._anyOutgoingListeners && this._anyOutgoingListeners.length) {\n            const listeners = this._anyOutgoingListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, packet.data);\n            }\n        }\n    }\n}\n", "/**\n * Initialize backoff timer with `opts`.\n *\n * - `min` initial timeout in milliseconds [100]\n * - `max` max timeout [10000]\n * - `jitter` [0]\n * - `factor` [2]\n *\n * @param {Object} opts\n * @api public\n */\nexport function Backoff(opts) {\n    opts = opts || {};\n    this.ms = opts.min || 100;\n    this.max = opts.max || 10000;\n    this.factor = opts.factor || 2;\n    this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;\n    this.attempts = 0;\n}\n/**\n * Return the backoff duration.\n *\n * @return {Number}\n * @api public\n */\nBackoff.prototype.duration = function () {\n    var ms = this.ms * Math.pow(this.factor, this.attempts++);\n    if (this.jitter) {\n        var rand = Math.random();\n        var deviation = Math.floor(rand * this.jitter * ms);\n        ms = (Math.floor(rand * 10) & 1) == 0 ? ms - deviation : ms + deviation;\n    }\n    return Math.min(ms, this.max) | 0;\n};\n/**\n * Reset the number of attempts.\n *\n * @api public\n */\nBackoff.prototype.reset = function () {\n    this.attempts = 0;\n};\n/**\n * Set the minimum duration\n *\n * @api public\n */\nBackoff.prototype.setMin = function (min) {\n    this.ms = min;\n};\n/**\n * Set the maximum duration\n *\n * @api public\n */\nBackoff.prototype.setMax = function (max) {\n    this.max = max;\n};\n/**\n * Set the jitter\n *\n * @api public\n */\nBackoff.prototype.setJitter = function (jitter) {\n    this.jitter = jitter;\n};\n", "import { Socket as Engine, installTimerFunctions, nextTick, } from \"engine.io-client\";\nimport { Socket } from \"./socket.js\";\nimport * as parser from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Backoff } from \"./contrib/backo2.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\nexport class Manager extends Emitter {\n    constructor(uri, opts) {\n        var _a;\n        super();\n        this.nsps = {};\n        this.subs = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = undefined;\n        }\n        opts = opts || {};\n        opts.path = opts.path || \"/socket.io\";\n        this.opts = opts;\n        installTimerFunctions(this, opts);\n        this.reconnection(opts.reconnection !== false);\n        this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);\n        this.reconnectionDelay(opts.reconnectionDelay || 1000);\n        this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);\n        this.randomizationFactor((_a = opts.randomizationFactor) !== null && _a !== void 0 ? _a : 0.5);\n        this.backoff = new Backoff({\n            min: this.reconnectionDelay(),\n            max: this.reconnectionDelayMax(),\n            jitter: this.randomizationFactor(),\n        });\n        this.timeout(null == opts.timeout ? 20000 : opts.timeout);\n        this._readyState = \"closed\";\n        this.uri = uri;\n        const _parser = opts.parser || parser;\n        this.encoder = new _parser.Encoder();\n        this.decoder = new _parser.Decoder();\n        this._autoConnect = opts.autoConnect !== false;\n        if (this._autoConnect)\n            this.open();\n    }\n    reconnection(v) {\n        if (!arguments.length)\n            return this._reconnection;\n        this._reconnection = !!v;\n        return this;\n    }\n    reconnectionAttempts(v) {\n        if (v === undefined)\n            return this._reconnectionAttempts;\n        this._reconnectionAttempts = v;\n        return this;\n    }\n    reconnectionDelay(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelay;\n        this._reconnectionDelay = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMin(v);\n        return this;\n    }\n    randomizationFactor(v) {\n        var _a;\n        if (v === undefined)\n            return this._randomizationFactor;\n        this._randomizationFactor = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setJitter(v);\n        return this;\n    }\n    reconnectionDelayMax(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelayMax;\n        this._reconnectionDelayMax = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMax(v);\n        return this;\n    }\n    timeout(v) {\n        if (!arguments.length)\n            return this._timeout;\n        this._timeout = v;\n        return this;\n    }\n    /**\n     * Starts trying to reconnect if reconnection is enabled and we have not\n     * started reconnecting yet\n     *\n     * @private\n     */\n    maybeReconnectOnOpen() {\n        // Only try to reconnect if it's the first time we're connecting\n        if (!this._reconnecting &&\n            this._reconnection &&\n            this.backoff.attempts === 0) {\n            // keeps reconnection from firing twice for the same reconnection loop\n            this.reconnect();\n        }\n    }\n    /**\n     * Sets the current transport `socket`.\n     *\n     * @param {Function} fn - optional, callback\n     * @return self\n     * @public\n     */\n    open(fn) {\n        if (~this._readyState.indexOf(\"open\"))\n            return this;\n        this.engine = new Engine(this.uri, this.opts);\n        const socket = this.engine;\n        const self = this;\n        this._readyState = \"opening\";\n        this.skipReconnect = false;\n        // emit `open`\n        const openSubDestroy = on(socket, \"open\", function () {\n            self.onopen();\n            fn && fn();\n        });\n        const onError = (err) => {\n            this.cleanup();\n            this._readyState = \"closed\";\n            this.emitReserved(\"error\", err);\n            if (fn) {\n                fn(err);\n            }\n            else {\n                // Only do this if there is no fn to handle the error\n                this.maybeReconnectOnOpen();\n            }\n        };\n        // emit `error`\n        const errorSub = on(socket, \"error\", onError);\n        if (false !== this._timeout) {\n            const timeout = this._timeout;\n            // set timer\n            const timer = this.setTimeoutFn(() => {\n                openSubDestroy();\n                onError(new Error(\"timeout\"));\n                socket.close();\n            }, timeout);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n        this.subs.push(openSubDestroy);\n        this.subs.push(errorSub);\n        return this;\n    }\n    /**\n     * Alias for open()\n     *\n     * @return self\n     * @public\n     */\n    connect(fn) {\n        return this.open(fn);\n    }\n    /**\n     * Called upon transport open.\n     *\n     * @private\n     */\n    onopen() {\n        // clear old subs\n        this.cleanup();\n        // mark as open\n        this._readyState = \"open\";\n        this.emitReserved(\"open\");\n        // add new subs\n        const socket = this.engine;\n        this.subs.push(on(socket, \"ping\", this.onping.bind(this)), on(socket, \"data\", this.ondata.bind(this)), on(socket, \"error\", this.onerror.bind(this)), on(socket, \"close\", this.onclose.bind(this)), on(this.decoder, \"decoded\", this.ondecoded.bind(this)));\n    }\n    /**\n     * Called upon a ping.\n     *\n     * @private\n     */\n    onping() {\n        this.emitReserved(\"ping\");\n    }\n    /**\n     * Called with data.\n     *\n     * @private\n     */\n    ondata(data) {\n        try {\n            this.decoder.add(data);\n        }\n        catch (e) {\n            this.onclose(\"parse error\", e);\n        }\n    }\n    /**\n     * Called when parser fully decodes a packet.\n     *\n     * @private\n     */\n    ondecoded(packet) {\n        // the nextTick call prevents an exception in a user-provided event listener from triggering a disconnection due to a \"parse error\"\n        nextTick(() => {\n            this.emitReserved(\"packet\", packet);\n        }, this.setTimeoutFn);\n    }\n    /**\n     * Called upon socket error.\n     *\n     * @private\n     */\n    onerror(err) {\n        this.emitReserved(\"error\", err);\n    }\n    /**\n     * Creates a new socket for the given `nsp`.\n     *\n     * @return {Socket}\n     * @public\n     */\n    socket(nsp, opts) {\n        let socket = this.nsps[nsp];\n        if (!socket) {\n            socket = new Socket(this, nsp, opts);\n            this.nsps[nsp] = socket;\n        }\n        else if (this._autoConnect && !socket.active) {\n            socket.connect();\n        }\n        return socket;\n    }\n    /**\n     * Called upon a socket close.\n     *\n     * @param socket\n     * @private\n     */\n    _destroy(socket) {\n        const nsps = Object.keys(this.nsps);\n        for (const nsp of nsps) {\n            const socket = this.nsps[nsp];\n            if (socket.active) {\n                return;\n            }\n        }\n        this._close();\n    }\n    /**\n     * Writes a packet.\n     *\n     * @param packet\n     * @private\n     */\n    _packet(packet) {\n        const encodedPackets = this.encoder.encode(packet);\n        for (let i = 0; i < encodedPackets.length; i++) {\n            this.engine.write(encodedPackets[i], packet.options);\n        }\n    }\n    /**\n     * Clean up transport subscriptions and packet buffer.\n     *\n     * @private\n     */\n    cleanup() {\n        this.subs.forEach((subDestroy) => subDestroy());\n        this.subs.length = 0;\n        this.decoder.destroy();\n    }\n    /**\n     * Close the current socket.\n     *\n     * @private\n     */\n    _close() {\n        this.skipReconnect = true;\n        this._reconnecting = false;\n        this.onclose(\"forced close\");\n        if (this.engine)\n            this.engine.close();\n    }\n    /**\n     * Alias for close()\n     *\n     * @private\n     */\n    disconnect() {\n        return this._close();\n    }\n    /**\n     * Called upon engine close.\n     *\n     * @private\n     */\n    onclose(reason, description) {\n        this.cleanup();\n        this.backoff.reset();\n        this._readyState = \"closed\";\n        this.emitReserved(\"close\", reason, description);\n        if (this._reconnection && !this.skipReconnect) {\n            this.reconnect();\n        }\n    }\n    /**\n     * Attempt a reconnection.\n     *\n     * @private\n     */\n    reconnect() {\n        if (this._reconnecting || this.skipReconnect)\n            return this;\n        const self = this;\n        if (this.backoff.attempts >= this._reconnectionAttempts) {\n            this.backoff.reset();\n            this.emitReserved(\"reconnect_failed\");\n            this._reconnecting = false;\n        }\n        else {\n            const delay = this.backoff.duration();\n            this._reconnecting = true;\n            const timer = this.setTimeoutFn(() => {\n                if (self.skipReconnect)\n                    return;\n                this.emitReserved(\"reconnect_attempt\", self.backoff.attempts);\n                // check again for the case socket closed in above events\n                if (self.skipReconnect)\n                    return;\n                self.open((err) => {\n                    if (err) {\n                        self._reconnecting = false;\n                        self.reconnect();\n                        this.emitReserved(\"reconnect_error\", err);\n                    }\n                    else {\n                        self.onreconnect();\n                    }\n                });\n            }, delay);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n    }\n    /**\n     * Called upon successful reconnect.\n     *\n     * @private\n     */\n    onreconnect() {\n        const attempt = this.backoff.attempts;\n        this._reconnecting = false;\n        this.backoff.reset();\n        this.emitReserved(\"reconnect\", attempt);\n    }\n}\n", "import { url } from \"./url.js\";\nimport { Manager } from \"./manager.js\";\nimport { Socket } from \"./socket.js\";\n/**\n * Managers cache.\n */\nconst cache = {};\nfunction lookup(uri, opts) {\n    if (typeof uri === \"object\") {\n        opts = uri;\n        uri = undefined;\n    }\n    opts = opts || {};\n    const parsed = url(uri, opts.path || \"/socket.io\");\n    const source = parsed.source;\n    const id = parsed.id;\n    const path = parsed.path;\n    const sameNamespace = cache[id] && path in cache[id][\"nsps\"];\n    const newConnection = opts.forceNew ||\n        opts[\"force new connection\"] ||\n        false === opts.multiplex ||\n        sameNamespace;\n    let io;\n    if (newConnection) {\n        io = new Manager(source, opts);\n    }\n    else {\n        if (!cache[id]) {\n            cache[id] = new Manager(source, opts);\n        }\n        io = cache[id];\n    }\n    if (parsed.query && !opts.query) {\n        opts.query = parsed.queryKey;\n    }\n    return io.socket(parsed.path, opts);\n}\n// so that \"lookup\" can be used both as a function (e.g. `io(...)`) and as a\n// namespace (e.g. `io.connect(...)`), for backward compatibility\nObject.assign(lookup, {\n    Manager,\n    Socket,\n    io: lookup,\n    connect: lookup,\n});\n/**\n * Protocol version.\n *\n * @public\n */\nexport { protocol } from \"socket.io-parser\";\n/**\n * Expose constructors for standalone build.\n *\n * @public\n */\nexport { Manager, Socket, lookup as io, lookup as connect, lookup as default, };\n"],
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+  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        this._uiManager(msg)\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += msg.payload\n        if (ui.content) content += ui.content\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    // Namespaces - See https://stackoverflow.com/a/52572048/1309986\n    // const NAMESPACES = {\n    //     svg: 'http://www.w3.org/2000/svg',\n    //     html: 'http://www.w3.org/1999/xhtml',\n    //     xml: 'http://www.w3.org/XML/1998/namespace',\n    //     xlink: 'http://www.w3.org/1999/xlink',\n    //     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n    // }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    /** External alias for _uiComposeComponent\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n\n    } // --- end of _uiManager ---\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName !== null && propName !== '') {\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    // Nightmare of different object types in a DOM Element!\n                    if (prop.constructor.name === 'NamedNodeMap') { // Attributes\n                        const p = {}\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                        out.push(p)\n                    } else if (!prop.constructor.name.toLowerCase().includes('map')) { // Ordinary properties\n                        out.push({\n                            [propName]: prop\n                        })\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                        out.push(p)\n                    }\n                }\n\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n", "/* This is the Front-End JavaScript for uibuilder  in HTML Module form\n  It provides a number of global objects that can be used in your own javascript.\n  see the docs folder `./docs/uibuilder.module.md` for details of how to use this fully.\n\n  Please use the default index.js file for your own code and leave this as-is.\n  See Uib._meta for client version string\n\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n//#region --- Type Defs --- //\n/**\n * A string containing HTML markup\n * @typedef {string} html\n */\n//#endregion --- Type Defs --- //\n\n//#region --- We need the Socket.IO & ui libraries & the uib-var component  --- //\n// @ts-ignore - Note: Only works when using esbuild to bundle\nimport Ui from './ui'\nimport UibVar from '../components/uib-var'\nimport io from 'socket.io-client'\n\n// TODO - Maybe - check if already loaded as window['io']?\n// TODO - Maybe - Should this be moved to inside the class - would know the httpRoot then so less need to guess?\n// TODO           Or, could pull the cookie processing out of the class\n// const ioLocns = [ // Likely locations of the Socket.IO client library\n//     // Where it should normally be\n//     '../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and haven't changed httpNodeRoot\n//     '/uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and have changed httpNodeRoot\n//     '../../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Direct from the Internet - last ditch attempt\n//     'https://cdn.jsdelivr.net/npm/socket.io-client/+esm',\n// ]\n\n// let io\n// for (const locn of ioLocns) {\n//     try {\n//         ({ io } = await import(locn))\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library found at '${locn}'`)()\n//     } catch (e) {\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library not found at '${locn}'`)()\n//     }\n//     if (io) break\n// }\n// if (!io) log('error', 'uibuilder.module.js', 'Socket.IO client failed to load')()\n//#endregion -------- -------- -------- //\n\nconst version = '6.8.0-src'\n\n// TODO Add option to allow log events to be sent back to Node-RED as uib ctrl msgs\n//#region --- Module-level utility functions --- //\n\n// @ts-ignore Detect whether the loaded library is minified or not\nconst isMinified = !(/param/).test(function (param) { }) // eslint-disable-line no-unused-vars\n\n//#region --- print/console - debugging output functions --- //\n\n/** Default log level - Error & Warn */\nlet logLevel = isMinified ? 0 : 1  // When using minified lib, assume production and only log errors otherwise also log warn\n// function changeLogLevel(level) {\n//     logLevel = level\n//     console.trace = logLevel < 4 ? function(){} : console.trace\n//     console.debug = logLevel < 2 ? function(){} : console.debug\n//     if ( logLevel < 1 ) {\n//         console.log = console.group = console.groupEnd =  function(){}\n//     }\n// }\n\n// Experimental\nconst LOG_STYLES = {\n    // 0\n    error: {\n        css: 'background: red; color: black;',\n        txtCss: 'color: red; ',\n        pre: '\u26D4 ',\n        console: 'error',  // or trace\n    },\n    // 1\n    warn: {\n        css: 'background: darkorange; color: black;',\n        txtCss: 'color: darkorange; ',\n        pre: '\u26A0 ',\n        console: 'warn',\n    },\n    // 2\n    info: {\n        css: 'background: aqua; color: black;',\n        txtCss: 'color: aqua;',\n        pre: '\u2757 ',\n        console: 'info',\n    },\n    // 3\n    log: {\n        css: 'background: grey; color: yellow;',\n        txtCss: 'color: grey;',\n        pre: '',\n        console: 'log',\n    },\n    // 4\n    debug: {\n        css: 'background: chartreuse; color: black;',\n        txtCss: 'color: chartreuse;',\n        pre: '',\n        console: 'debug',\n    },\n    // 5\n    trace: {\n        css: 'background: indigo; color: yellow;',\n        txtCss: 'color: hotpink;',\n        pre: '',\n        console: 'log',\n    },\n\n    names: ['error', 'warn', 'info', 'log', 'debug', 'trace'],\n    reset: 'color: inherit;',\n    head: 'font-weight:bold; font-style:italic;',\n    level: 'font-weight:bold; border-radius: 3px; padding: 2px 5px; display:inline-block;',\n}\n/** Custom logging. e.g. log(2, 'here:there', 'jiminy', {fred:'jim'})()\n * @returns {Function} Log function @example log(2, 'here:there', 'jiminy', {fred:'jim'})()\n */\nfunction log() {\n    // Get the args\n    const args = Array.prototype.slice.call(arguments)\n\n    // 1st arg is the log level/type\n    let level = args.shift()\n    let strLevel\n    switch (level) {\n        case 'trace':\n        case 5: {\n            if (logLevel < 5) break\n            level = 5 // make sure level is numeric\n            strLevel = 'trace'\n            break\n        }\n\n        case 'debug':\n        case 4: {\n            if (logLevel < 4) break\n            level = 4\n            strLevel = 'debug'\n            break\n        }\n\n        case 'log':\n        case 3: {\n            if (logLevel < 3) break\n            level = 3\n            strLevel = 'log'\n            break\n        }\n\n        case 'info':\n        case '':\n        case 2: {\n            if (logLevel < 2) break\n            level = 2\n            strLevel = 'info'\n            break\n        }\n\n        case 'warn':\n        case 1: {\n            if (logLevel < 1) break\n            level = 1\n            strLevel = 'warn'\n            break\n        }\n\n        case 'error':\n        case 'err':\n        case 0: {\n            if (logLevel < 0) break\n            level = 0\n            strLevel = 'error'\n            break\n        }\n\n        default: {\n            level = -1\n            break\n        }\n\n    }\n\n    // If set to something unknown, no log output\n    if (strLevel === undefined) return function () { }\n\n    // 2nd arg is a heading that will be colour highlighted\n    const head = args.shift()\n\n    // Bind back to console.log (could use console[strLevel] but some levels ignore some formatting, use console.xxx directly or dedicated fn)\n    return Function.prototype.bind.call(\n        console[LOG_STYLES[strLevel].console],\n        console,\n        `%c${LOG_STYLES[strLevel].pre}${strLevel}%c [${head}]`, `${LOG_STYLES.level} ${LOG_STYLES[strLevel].css}`, `${LOG_STYLES.head} ${LOG_STYLES[strLevel].txtCss}`,\n        ...args\n    )\n}\n//#endregion\n\n/** A hack to dynamically load a remote module and wait until it is loaded\n * @param {string} url The URL of the module to load\n * @returns {object|null} Either the result object or null (if the load fails)\n */\n// function loadModule(url) { // eslint-disable-line no-unused-vars\n//     let done\n\n//     import(url)\n//         .then(res => {\n//             log('debug', '>> then >>', res)()\n//             done = res\n//         })\n//         .catch(err => {\n//             console.error(`[uibuilder:loadModule] Could not load module ${url}`, err)\n//             done = null\n//         })\n\n//     //  eslint-disable-next-line no-empty\n//     while (!done) { } // eslint-disable-line no-unmodified-loop-condition\n\n//     return done\n// }\n\n/** Makes a null or non-object into an object\n * If not null, moves \"thing\" to {payload:thing}\n *\n * @param {*} thing Thing to check\n * @param {string} [property='payload'] property that \"thing\" is moved to if not null and not an object\n * @returns {!object} _\n */\nfunction makeMeAnObject(thing, property) {\n    if (!property) property = 'payload'\n    if (typeof property !== 'string') {\n        log('warn', 'uibuilderfe:makeMeAnObject', `WARNING: property parameter must be a string and not: ${typeof property}`)()\n        property = 'payload'\n    }\n    let out = {}\n    if ( thing !== null && thing.constructor.name === 'Object' ) {\n        out = thing\n    } else if (thing !== null) {\n        out[property] = thing\n    }\n    return out\n} // --- End of make me an object --- //\n\n/** Joins all arguments as a URL string\n * see http://stackoverflow.com/a/28592528/3016654\n * since v1.0.10, fixed potential double // issue\n * arguments {string} URL fragments\n * @returns {string} _\n */\nfunction urlJoin() {\n    const paths = Array.prototype.slice.call(arguments)\n    const url = '/' + paths.map(function (e) {\n        return e.replace(/^\\/|\\/$/g, '')\n    })\n        .filter(function (e) {\n            return e\n        })\n        .join('/')\n    return url.replace('//', '/')\n} // ---- End of urlJoin ---- //\n\n/** Convert JSON to Syntax Highlighted HTML\n * @param {object} json A JSON/JavaScript Object\n * @returns {html} Object reformatted as highlighted HTML\n */\nfunction syntaxHighlight(json) {\n    if (json === undefined) {\n        json = '<span class=\"undefined\">undefined</span>'\n    } else {\n        try {\n            json = JSON.stringify(json, undefined, 4)\n            // json = json.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;') // eslint-disable-line newline-per-chained-call\n            json = json.replace(/(\"(\\\\u[a-zA-Z0-9]{4}|\\\\[^u]|[^\\\\\"])*\"(\\s*:)?|\\b(true|false|null)\\b|-?\\d+(?:\\.\\d*)?(?:[eE][+-]?\\d+)?)/g, function (match) { // eslint-disable-line prefer-named-capture-group\n                let cls = 'number'\n                if ((/^\"/).test(match)) {\n                    if ((/:$/).test(match)) {\n                        cls = 'key'\n                    } else {\n                        cls = 'string'\n                    }\n                } else if ((/true|false/).test(match)) {\n                    cls = 'boolean'\n                } else if ((/null/).test(match)) {\n                    cls = 'null'\n                }\n                return `<span class=\"${cls}\">${match}</span>`\n            })\n        } catch (e) {\n            json = `Syntax Highlight ERROR: ${e.message}`\n        }\n    }\n    return json\n}\n\n/** msg._ui handling functions */\nconst _ui = new Ui(window, log, syntaxHighlight)\n\n//#endregion --- Module-level utility functions --- //\n\n/** Define and export the Uib class - note that an instance of the class is also exported in the wrap-up\n * @typicalname uibuilder\n */\nexport const Uib = class Uib {\n\n    //#region --- Static variables ---\n    static _meta = {\n        version: version,\n        type: 'module',\n        displayName: 'uibuilder',\n    }\n    //#endregion ---- ---- ---- ----\n\n    //#region private class vars\n\n    // How many times has the loaded instance connected to Socket.IO (detect if not a new load?)\n    connectedNum = 0\n    // event listener callbacks by property name\n    // #events = {}\n    // Socket.IO channel names\n    _ioChannels = { control: 'uiBuilderControl', client: 'uiBuilderClient', server: 'uiBuilder' }\n    /** setInterval holder for pings @type {function|undefined} */\n    #pingInterval\n    // onChange event callbacks\n    #propChangeCallbacks = {}\n    // onTopic event callbacks\n    #msgRecvdByTopicCallbacks = {}\n    // Is Vue available?\n    isVue = false\n    // What version? Set in startup if Vue is loaded. Won't always work\n    vueVersion = undefined\n    /** setInterval id holder for Socket.IO checkConnect\n     * @type {number|null}\n     */\n    #timerid = null\n    // Holds the reference ID for the internal msg change event handler so that it can be cancelled\n    #MsgHandler\n    // Placeholder for io.socket - can't make a # var until # fns allowed in all browsers\n    _socket\n    // Placeholder for an observer that watches the whole DOM for changes - can't make a # var until # fns allowed in all browsers\n    _htmlObserver\n    // Has showMsg been turned on?\n    #isShowMsg = false\n    // Has showStatus been turned on?\n    #isShowStatus = false\n    // If true, URL hash changes send msg back to node-red. Controlled by watchUrlHash()\n    #sendUrlHash = false\n    // Externally accessible command functions (NB: Case must match) - remember to update _uibCommand for new commands\n    #extCommands = [\n        'elementExists', 'get', 'getManagedVarList', 'getWatchedVars', 'htmlSend', 'include',\n        'navigate', 'scrollTo', 'set', 'showMsg', 'showStatus', 'uiGet', 'uiWatch', 'watchUrlHash',\n    ]\n\n    /** @type {{[key: string]: string}} Managed uibuilder variables */\n    #managedVars = {}\n\n    // What status variables to show via showStatus()\n    #showStatus = {\n        online: { 'var': 'online', 'label': 'Online?', 'description': 'Is the browser online?', },\n        ioConnected: { 'var': 'ioConnected', 'label': 'Socket.IO connected?', 'description': 'Is Socket.IO connected?', },\n        connectedNum: { 'var': 'connectedNum', 'label': '# reconnections', 'description': 'How many times has Socket.IO had to reconnect since last page load?', },\n\n        clientId: { 'var': 'clientId', 'label': 'Client ID', 'description': 'Static client unique id set in Node-RED. Only changes when browser is restarted.', },\n        tabId: { 'var': 'tabId', 'label': 'Browser tab ID', 'description': 'Static unique id for the browser\\'s current tab', },\n        cookies: { 'var': 'cookies', 'label': 'Cookies', 'description': 'Cookies set in Node-RED', },\n        httpNodeRoot: { 'var': 'httpNodeRoot', 'label': 'httpNodeRoot', 'description': 'From Node-RED\\' settings.js, affects URL\\'s. May be wrong for pages in sub-folders', },\n        pageName: { 'var': 'pageName', 'label': 'Page name', 'description': 'Actual name of this page', },\n\n        ioNamespace: { 'var': 'ioNamespace', 'label': 'SIO namespace', 'description': 'Socket.IO namespace - unique to each uibuilder node instance', },\n        // ioPath: { 'var': 'ioPath', 'label': 'SIO path', 'description': '', }, // no longer needed in the modern client\n        socketError: { 'var': 'socketError', 'label': 'Socket error', 'description': 'If the Socket.IO connection has failed, says why', },\n\n        msgsSent: { 'var': 'msgsSent', 'label': '# msgs sent', 'description': 'How many standard messages have been sent to Node-RED?', },\n        msgsReceived: { 'var': 'msgsReceived', 'label': '# msgs received', 'description': 'How many standard messages have been received from Node-RED?', },\n        msgsSentCtrl: { 'var': 'msgsSentCtrl', 'label': '# control msgs sent', 'description': 'How many control messages have been sent to Node-RED?', },\n        msgsCtrlReceived: { 'var': 'msgsCtrlReceived', 'label': '# control msgs received', 'description': 'How many control messages have been received from Node-RED?', },\n        originator: { 'var': 'originator', 'label': 'Node Originator', 'description': 'If the last msg from Node-RED was from a `uib-sender` node, this will be its node id so that messasges can be returned to it', },\n        topic: { 'var': 'topic', 'label': 'Default topic', 'description': 'Optional default topic to be included in outgoing standard messages', },\n\n        started: { 'var': 'started', 'label': 'Has uibuilder client started?', 'description': 'Whether `uibuilder.start()` ran successfully. This should self-run and should not need to be run manually', },\n        version: { 'var': 'version', 'label': 'uibuilder client version', 'description': 'The version of the loaded uibuilder client library', },\n        serverTimeOffset: { 'var': 'serverTimeOffset', 'label': 'Server time offset (Hrs)', 'description': 'The number of hours difference between the Node-red server and the client', },\n    }\n\n    // Track ui observers (see uiWatch)\n    #uiObservers = {}\n\n    //#endregion\n\n    //#region public class vars\n\n    // TODO Move to proper getters\n    //#region ---- Externally read-only (via .get method) ---- //\n    // version - moved to _meta\n    /** Client ID set by uibuilder on connect */\n    clientId = ''\n    /** The collection of cookies provided by uibuilder */\n    cookies = {}\n    /** Copy of last control msg object received from sever */\n    ctrlMsg = {}\n    /** Is Socket.IO client connected to the server? */\n    ioConnected = false\n    // Is the browser tab containing this page visible or not?\n    isVisible = false\n    // Remember the last page (re)load/navigation type: navigate, reload, back_forward, prerender\n    lastNavType = ''\n    /** Last std msg received from Node-RED */\n    msg = {}\n    /** number of messages sent to server since page load */\n    msgsSent = 0\n    /** number of messages received from server since page load */\n    msgsReceived = 0\n    /** number of control messages sent to server since page load */\n    msgsSentCtrl = 0\n    /** number of control messages received from server since page load */\n    msgsCtrlReceived = 0\n    /** Is the client online or offline? */\n    online = navigator.onLine\n    /** last control msg object sent via uibuilder.send() @since v2.0.0-dev3 */\n    sentCtrlMsg = {}\n    /** last std msg object sent via uibuilder.send() */\n    sentMsg = {}\n    /** placeholder to track time offset from server, see fn socket.on(ioChannels.server ...) */\n    serverTimeOffset = null\n    /** placeholder for a socket error message */\n    socketError = null\n    // tab identifier from session storage\n    tabId = ''\n    // Actual name of current page (set in constructor)\n    pageName = null\n    // Is the DOMPurify library loaded? Updated in start()\n    purify = false\n    // Is the Markdown-IT library loaded? Updated in start()\n    markdown = false\n    // Current URL hash. Initial set is done from start->watchHashChanges via a set to make it watched\n    urlHash = location.hash\n    //#endregion ---- ---- ---- ---- //\n\n    // TODO Move to proper getters/setters\n    //#region ---- Externally Writable (via .set method, read via .get method) ---- //\n    /** Default originator node id - empty string by default\n     * @type {string}\n     */\n    originator = ''\n    /** Default topic - used by send if set and no topic provided\n     * @type {(string|undefined)}\n     */\n    topic = undefined\n    //#endregion ---- ---- ---- ---- //\n\n    //#region ---- These are unlikely to be needed externally: ----\n    autoSendReady = true\n    httpNodeRoot = '' // Node-RED setting (via cookie)\n    ioNamespace = ''\n    ioPath = ''\n    retryFactor = 1.5       // starting delay factor for subsequent reconnect attempts\n    retryMs = 2000          // starting retry ms period for manual socket reconnections workaround\n    storePrefix = 'uib_'    // Prefix for all uib-related localStorage\n    started = false\n    // NOTE: These can only change when a client (re)connects\n    socketOptions = {\n        path: this.ioPath,\n        transports: ['polling', 'websocket'],\n        // Using callback so that they are updated automatically on (re)connect\n        // Only put things in here that will be valid for a websocket connected session\n        auth: (cb) => {\n            cb({ // eslint-disable-line n/no-callback-literal\n                clientVersion: version,\n                clientId: this.clientId,\n                pathName: window.location.pathname,\n                urlParams: Object.fromEntries(new URLSearchParams(location.search)),\n                pageName: this.pageName,\n                tabId: this.tabId,\n                lastNavType: this.lastNavType,\n                connectedNum: ++this.connectedNum,\n                // Used to calculate the diff between the server and client connection timestamps - reported if >1 minute\n                browserConnectTimestamp: (new Date()).toISOString(),\n            })\n        },\n        transportOptions: {\n            // Can only set headers when polling\n            polling: {\n                extraHeaders: {\n                    'x-clientid': `${Uib._meta.displayName}; ${Uib._meta.type}; ${Uib._meta.version}; ${this.clientId}`,\n                }\n            },\n        },\n    }\n    //#endregion -- not external --\n\n    //#endregion --- End of variables ---\n\n    //#region ------- Getters and Setters ------- //\n\n    // Change logging level dynamically (affects both console. and print.)\n    set logLevel(level) { logLevel = level; console.log('%c\u2757 info%c [logLevel]', `${LOG_STYLES.level} ${LOG_STYLES.info.css}`, `${LOG_STYLES.head} ${LOG_STYLES.info.txtCss}`, `Set to ${level} (${LOG_STYLES.names[level]})`) /* changeLogLevel(level)*/ }\n    get logLevel() { return logLevel }\n\n    get meta() { return Uib._meta }\n\n    /** Function to set uibuilder properties to a new value - works on any property except _* or #*\n     * Also triggers any event listeners.\n     * Example: this.set('msg', {topic:'uibuilder', payload:42});\n     * @param {string} prop Any uibuilder property who's name does not start with a _ or #\n     * @param {*} val The set value of the property or a string declaring that a protected property cannot be changed\n     * @param {boolean} [store] If true, the variable is also saved to the browser localStorage if possible\n     * @param {boolean} [autoload] If true & store is true, on load, uib will try to restore the value from the store automatically\n     * @returns {*} Input value\n     */\n    set(prop, val, store = false, autoload = false) {\n        // Check for excluded properties - we don't want people to set these\n        // if (this.#excludedSet.indexOf(prop) !== -1) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:set', `Cannot use set() on protected property \"${prop}\"`)()\n            return `Cannot use set() on protected property \"${prop}\"`\n        }\n\n        // We must add the var to the uibuilder object\n        this[prop] = val\n\n        // Keep track of all managed variables\n        this.#managedVars[prop] = prop\n\n        // If requested, save to store\n        if (store === true) this.setStore(prop, val, autoload)\n\n        log('trace', 'Uib:set', `prop set - prop: ${prop}, val: `, val, ` store: ${store}, autoload: ${autoload}`)()\n\n        // Trigger this prop's event callbacks (listeners which are set by this.onChange)\n        // this.emit(prop, val)\n\n        // trigger an event on the prop name, pass both the name and value to the event details\n        this._dispatchCustomEvent('uibuilder:propertyChanged', { 'prop': prop, 'value': val, 'store': store, 'autoload': autoload })\n\n        return val\n    }\n\n    /** Function to get the value of a uibuilder property\n     * Example: uibuilder.get('msg')\n     * @param {string} prop The name of the property to get as long as it does not start with a _ or #\n     * @returns {*|undefined} The current value of the property\n     */\n    get(prop) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:get', `Cannot use get() on protected property \"${prop}\"`)()\n            return\n        }\n        if (prop === 'version') return Uib._meta.version\n        if (prop === 'msgsCtrl') return this.msgsCtrlReceived\n        if (prop === 'reconnections') return this.connectedNum\n        if (this[prop] === undefined) {\n            log('warn', 'Uib:get', `get() - property \"${prop}\" is undefined`)()\n        }\n        return this[prop]\n    }\n\n    /** Write to localStorage if possible. console error output if can't write\n     * Also uses this.storePrefix\n     * @example\n     *   uibuilder.setStore('fred', 42)\n     *   console.log(uibuilder.getStore('fred'))\n     * @param {string} id localStorage var name to be used (prefixed with 'uib_')\n     * @param {*} value value to write to localstore\n     * @param {boolean} [autoload] If true, on load, uib will try to restore the value from the store\n     * @returns {boolean} True if succeeded else false\n     */\n    setStore(id, value, autoload = false) {\n        let autoVars = {}\n        if (autoload === true) {\n            try {\n                autoVars = this.getStore('_uibAutoloadVars') || {}\n            } catch (e) {}\n        }\n        if (typeof value === 'object') {\n            try {\n                value = JSON.stringify(value)\n            } catch (e) {\n                log('error', 'Uib:setStore', 'Cannot stringify object, not storing. ', e)()\n                return false\n            }\n        }\n        try {\n            localStorage.setItem(this.storePrefix + id, value)\n            if (autoload) {\n                autoVars[id] = id\n                try {\n                    localStorage.setItem(this.storePrefix + '_uibAutoloadVars', JSON.stringify(autoVars))\n                } catch (e) {\n                    log('error', 'Uib:setStore', 'Cannot save autoload list. ', e)()\n                }\n            }\n            this._dispatchCustomEvent('uibuilder:propertyStored', { 'prop': id, 'value': value, 'autoload': autoload })\n            return true\n        } catch (e) {\n            log('error', 'Uib:setStore', 'Cannot write to localStorage. ', e)()\n            return false\n        }\n    } // --- end of setStore --- //\n\n    /** Attempt to get and re-hydrate a key value from localStorage\n     * Note that all uib storage is automatically prefixed using this.storePrefix\n     * @param {*} id The key of the value to attempt to retrieve\n     * @returns {*|null|undefined} The re-hydrated value of the key or null if key not found, undefined on error\n     */\n    getStore(id) {\n        try {\n            // @ts-ignore\n            return JSON.parse(localStorage.getItem(this.storePrefix + id))\n        } catch (e) { }\n        try {\n            return localStorage.getItem(this.storePrefix + id)\n        } catch (e) {\n            return undefined\n        }\n    }\n\n    /** Remove a given id from the uib keys in localStorage\n     * @param {*} id The key to remove\n     */\n    removeStore(id) {\n        try {\n            localStorage.removeItem(this.storePrefix + id)\n        } catch (e) { }\n    }\n\n    /** Returns a list of uibuilder properties (variables) that can be watched with onChange\n     * @returns {{[key: string]: string}} List of uibuilder managed variables\n     */\n    getManagedVarList() {\n        return this.#managedVars\n    }\n\n    getWatchedVars() {\n        return Object.keys(this.#propChangeCallbacks)\n    }\n\n    //#endregion ------- -------- ------- //\n\n    //#region ------- Our own event handling system ---------- //\n\n    // TODO Add option to send event details back to Node-RED as uib ctrl msg\n    /** Standard fn to create a custom event with details & dispatch it\n     * @param {string} title The event name\n     * @param {*} details Any details to pass to event output\n     */\n    _dispatchCustomEvent(title, details) {\n        const event = new CustomEvent(title, { detail: details })\n        document.dispatchEvent(event)\n    }\n\n    // See the this.#propChangeCallbacks & msgRecvdByTopicCallbacks private vars\n\n    /** Register on-change event listeners for uibuilder tracked properties\n     * Make it possible to register a function that will be run when the property changes.\n     * Note that you can create listeners for non-existant properties\n     * @example: uibuilder.onChange('msg', (msg) => { console.log('uibuilder.msg changed! It is now: ', msg) })\n     *\n     * @param {string} prop The property of uibuilder that we want to monitor\n     * @param {Function} callback The function that will run when the property changes, parameter is the new value of the property after change\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelChange if you need to remove a listener\n     */\n    onChange(prop, callback) {\n        // Note: Property does not have to exist yet\n\n        // console.debug(`[Uib:onchange] pushing new callback (event listener) for property: ${prop}`)\n\n        // Create a new array or add to the array of callback functions for the property in the events object\n        // if (this.#events[prop]) {\n        //     this.#events[prop].push(callback)\n        // } else {\n        //     this.#events[prop] = [callback]\n        // }\n\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#propChangeCallbacks[prop]) this.#propChangeCallbacks[prop] = { _nextRef: 1 }\n        else this.#propChangeCallbacks[prop]._nextRef++\n\n        const nextCbRef = this.#propChangeCallbacks[prop]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const propChangeCallback = this.#propChangeCallbacks[prop][nextCbRef] = function propChangeCallback(e) {\n            // If the prop name matches the 1st arg in the onChange fn:\n            if (prop === e.detail.prop) {\n                const value = e.detail.value\n                // console.warn('[Uib:onChange:evt] uibuilder:propertyChanged. ', e.detail)\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(value, value)\n            }\n        }\n\n        document.addEventListener('uibuilder:propertyChanged', propChangeCallback)\n\n        return nextCbRef\n    } // ---- End of onChange() ---- //\n\n    cancelChange(prop, cbRef) {\n        document.removeEventListener('uibuilder:propertyChanged', this.#propChangeCallbacks[prop][cbRef])\n        delete this.#propChangeCallbacks[prop][cbRef]\n        // this.#propChangeCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Register a change callback for a specific msg.topic\n     * Similar to onChange but more convenient if needing to differentiate by msg.topic.\n     * @example: let otRef = uibuilder.onTopic('mytopic', function(){ console.log('Received a msg with msg.topic=`mytopic`. msg: ', this) })\n     * To cancel a change listener: uibuilder.cancelTopic('mytopic', otRef)\n     *\n     * @param {string} topic The msg.topic we want to listen for\n     * @param {Function} callback The function that will run when an appropriate msg is received. `this` inside the callback as well as the cb's single argument is the received msg.\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelTopic if you need to remove a listener\n     */\n    onTopic(topic, callback) {\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#msgRecvdByTopicCallbacks[topic]) this.#msgRecvdByTopicCallbacks[topic] = { _nextRef: 1 }\n        else this.#msgRecvdByTopicCallbacks[topic]._nextRef++\n\n        const nextCbRef = this.#msgRecvdByTopicCallbacks[topic]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const msgRecvdEvtCallback = this.#msgRecvdByTopicCallbacks[topic][nextCbRef] = function msgRecvdEvtCallback(e) {\n            const msg = e.detail\n            // console.log('[Uib:onTopic:evt] uibuilder:stdMsgReceived where topic matches. ', e.detail)\n            if (msg.topic === topic) {\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(msg, msg)\n            }\n        }\n\n        document.addEventListener('uibuilder:stdMsgReceived', msgRecvdEvtCallback)\n\n        return nextCbRef\n    }\n\n    cancelTopic(topic, cbRef) {\n        document.removeEventListener('uibuilder:stdMsgReceived', this.#msgRecvdByTopicCallbacks[topic][cbRef])\n        delete this.#msgRecvdByTopicCallbacks[topic][cbRef]\n        // this.#msgRecvdCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Trigger event listener for a given property\n     * Called when uibuilder.set is used\n     *\n     * @param {*} prop The property for which to run the callback functions\n     * arguments: Additional arguments contain the value to pass to the event callback (e.g. newValue)\n     */\n    // emit(prop) {\n    //     var evt = this.#events[prop]\n    //     if (!evt) {\n    //         return\n    //     }\n    //     var args = Array.prototype.slice.call(arguments, 1)\n    //     for (var i = 0; i < evt.length; i++) {\n    //         evt[i].apply(this, args)\n    //     }\n    //     log('trace', 'Uib:emit', `${evt.length} listeners run for prop ${prop} `)()\n    // }\n\n    /** Forcibly removes all event listeners from the events array\n     * Use if you need to re-initialise the environment\n     */\n    // clearEventListeners() {\n    //     this.#events = []\n    // } // ---- End of clearEventListeners() ---- //\n\n    /** Clear a single property event listeners\n     * @param {string} prop The property of uibuilder for which we want to clear the event listener\n     */\n    // clearListener(prop) {\n    //     if (this.#events[prop]) delete this.#events[prop]\n    // }\n\n    //#endregion ---------- End of event handling system ---------- //\n\n    //#region ------- General Utility Functions -------- //\n\n    /** Check supplied msg from server for a timestamp - if received, work out & store difference to browser time\n     * @param {object} receivedMsg A message object recieved from Node-RED\n     * @returns {void} Updates self.serverTimeOffset if different to previous value\n     */\n    _checkTimestamp(receivedMsg) {\n        if (Object.prototype.hasOwnProperty.call(receivedMsg, 'serverTimestamp')) {\n            const serverTimestamp = new Date(receivedMsg.serverTimestamp)\n            // @ts-ignore\n            const offset = Math.round(((new Date()) - serverTimestamp) / 3600000) // in ms /3.6m to get hours\n            if (offset !== this.serverTimeOffset) {\n                log('trace', `Uib:checkTimestamp:${this._ioChannels.server} (server)`, `Offset changed to: ${offset} from: ${this.serverTimeOffset}`)()\n                this.set('serverTimeOffset', offset)\n            }\n        }\n    }\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {*} Selected HTML element or null\n     */\n    $(cssSelector) {\n        /** @type {*} Some kind of HTML element */\n        let el = document.querySelector(cssSelector)\n\n        if (!el) {\n            log(1, 'Uib:$', `No element found for CSS selector ${cssSelector}`)()\n            return null\n        }\n\n        if ( el.nodeName === 'TEMPLATE' ) {\n            el = el.content.firstElementChild\n            if (!el) {\n                log(0, 'Uib:$', `Template selected for CSS selector ${cssSelector} but it is empty`)()\n                return null\n            }\n        }\n\n        return el\n    }\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {*} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {Array} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$(cssSelector) {\n        return Array.from(document.querySelectorAll(cssSelector))\n    }\n\n    /** Set the default originator. Set to '' to ignore. Used with uib-sender.\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    setOriginator(originator = '') {\n        this.set('originator', originator)\n    } // ---- End of setOriginator ---- //\n\n    /** HTTP Ping/Keep-alive - makes a call back to uibuilder's ExpressJS server and receives a 204 response\n     * Can be used to keep sessions alive.\n     * @example\n     *   uibuilder.setPing(2000) // repeat every 2 sec. Re-issue with ping(0) to turn off repeat.\n     *   uibuilder.onChange('ping', function(data) {\n     *      console.log('pinger', data)\n     *   })\n     * @param {number} ms Repeat interval in ms\n     */\n    setPing(ms = 0) {\n        const oReq = new XMLHttpRequest()\n        oReq.addEventListener('load', () => {\n            const headers = (oReq.getAllResponseHeaders()).split('\\r\\n')\n            const elapsedTime = Number(new Date()) - Number((oReq.responseURL.split('='))[1])\n            this.set('ping', {\n                success: !!((oReq.status === 201) || (oReq.status === 204)), // true if one of the listed codes else false\n                status: oReq.status,\n                headers: headers,\n                url: oReq.responseURL,\n                elapsedTime: elapsedTime,\n            })\n        })\n\n        if (this.#pingInterval) {\n            clearInterval(this.#pingInterval)\n            this.#pingInterval = undefined\n        }\n\n        oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n        oReq.send()\n\n        if (ms > 0) {\n            this.#pingInterval = setInterval(() => {\n                oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n                oReq.send()\n            }, ms)\n        }\n    } // ---- End of ping ---- //\n\n    log() {\n        log(...arguments)()\n    }\n\n    /** Convert JSON to Syntax Highlighted HTML\n     * @param {object} json A JSON/JavaScript Object\n     * @returns {html} Object reformatted as highlighted HTML\n     */\n    syntaxHighlight(json) {\n        return syntaxHighlight(json)\n    } // --- End of syntaxHighlight --- //\n\n    /** Copies a uibuilder variable to the browser clipboard\n     * @param {string} varToCopy The name of the uibuilder variable to copy to the clipboard\n     */\n    copyToClipboard(varToCopy) {\n        let data = ''\n        try {\n            console.log(this.get(varToCopy), JSON.stringify(this.get(varToCopy)))\n            data = JSON.stringify(this.get(varToCopy))\n        } catch (e) {\n            log('error', 'copyToClipboard', `Could not copy \"${varToCopy}\" to clipboard.`, e.message)()\n        }\n        navigator.clipboard.writeText(data)\n    } // --- End of copyToClipboard --- //\n\n    /** DEPRECATED FOR NOW - wasn't working properly.\n     * Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.\n     * Requires IntersectionObserver (available to all mainstream browsers from early 2019)\n     * Automatically sends a msg back to Node-RED.\n     * Requires the element to already exist.\n     */\n    elementIsVisible() {\n        const info = 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'\n        log('error', 'uib:elementIsVisible', info)()\n        this.send({payload: 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'})\n        return false\n    } // --- End of elementIsVisible --- //\n\n    /** Does the chosen CSS Selector currently exist?\n     * Automatically sends a msg back to Node-RED unless turned off.\n     * @param {string} cssSelector Required. CSS Selector to examine for visibility\n     * @param {boolean} [msg] Optional, default=true. If true also sends a message back to Node-RED\n     * @returns {boolean} True if the element exists\n     */\n    elementExists(cssSelector, msg = true) {\n        const el = document.querySelector(cssSelector)\n\n        let exists = false\n        if (el !== null) exists = true\n\n        if (msg === true) {\n            this.send({\n                payload: exists,\n                info: `Element \"${cssSelector}\" ${exists ? 'exists' : 'does not exist'}`\n            })\n        }\n\n        return exists\n    } // --- End of elementExists --- //\n\n    /** Only keep the URL Hash & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return '#' + url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Set up an event listener to watch for hash changes\n     * and set the watchable urlHash variable\n     */\n    _watchHashChanges() {\n        this.set('urlHash', location.hash)\n        window.addEventListener('hashchange', (event) => {\n            this.set('urlHash', location.hash)\n            if (this.#sendUrlHash === true) {\n                this.send({ topic: 'hashChange', payload: location.hash, newHash: this.keepHashFromUrl(event.newURL), oldHash: this.keepHashFromUrl(event.oldURL) })\n            }\n        })\n    }\n\n    /** Returns true/false or a default value for truthy/falsy and other values\n     * @param {string|number|boolean|*} val The value to test\n     * @param {any} deflt Default value to use if the value is not truthy/falsy\n     * @returns {boolean|any} The truth! Or the default\n     */\n    truthy(val, deflt) {\n        let ret\n        if (['on', 'On', 'ON', 'true', 'True', 'TRUE', '1', true, 1].includes(val)) ret = true\n        else if (['off', 'Off', 'OFF', 'false', 'False', 'FALSE', '0', false, 0].includes(val)) ret = false\n        else ret = deflt\n        return ret\n    }\n\n    /** Turn on/off/toggle sending URL hash changes back to Node-RED\n     * @param {string|number|boolean|undefined} [toggle] Optional on/off/etc\n     * @returns {boolean} True if we will send a msg to Node-RED on a hash change\n     */\n    watchUrlHash(toggle) {\n        this.#sendUrlHash = this.truthy(toggle, this.#sendUrlHash !== true)\n        return this.#sendUrlHash\n    }\n\n    /** Navigate to a new page or a new route (hash)\n     * @param {string} url URL to navigate to. Can be absolute or relative (to current page) or just a hash for a route change\n     * @returns {Location} The new window.location string\n     */\n    navigate(url) {\n        if (url) window.location.href = url\n        return window.location\n    }\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- UI handlers --------- //\n\n    //#region -- Direct to _ui --\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        _ui.ui(json)\n    }\n\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        _ui.replaceSlot(el, component)\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        _ui.replaceSlotMarkdown(el, component)\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        return _ui.convertMarkdown(mdText)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        return _ui.sanitiseHTML(html)\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        _ui.loadScriptSrc(url)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        _ui.loadStyleSrc(url)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        _ui.loadScriptTxt(textFn)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        _ui.loadStyleTxt(textFn)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) {\n        _ui.showDialog(type, ui, msg)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        _ui.loadui(url)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        return _ui.uiGet(cssSelector, propName)\n    }\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     */\n    async include(url, uiOptions) {\n        _ui.include(url, uiOptions)\n    }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} component Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, component) {\n        _ui.uiEnhanceElement(el, component)\n    }\n\n    //#endregion -- direct to _ui --\n\n    /** * Show/hide a display card on the end of the visible HTML that will dynamically display the last incoming msg from Node-RED\n     * The card has the id `uib_last_msg`. Updates are done from a listener set up in the start function.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showMsg(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowMsg\n        this.#isShowMsg = showHide\n        let slot = 'Waiting for a message from Node-RED'\n\n        if (this.msg && Object.keys(this.msg).length > 0) {\n            slot = this.syntaxHighlight(this.msg)\n        }\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_last_msg_wrap',\n                ],\n            })\n        } else {\n            _ui._uiReplace({\n                components: [\n                    {\n                        type: 'div',\n                        id: 'uib_last_msg_wrap',\n                        parent: parent,\n                        attributes: {\n                            title: 'Last message from Node-RED',\n                        },\n                        components: [\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.copyToClipboard(\"msg\")',\n                                    class: 'compact',\n                                    style: 'right:3em;',\n                                },\n                                slot: '\uD83D\uDCCB',\n                            },\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.showMsg()',\n                                    class: 'compact',\n                                    style: 'right:.5em;',\n                                },\n                                slot: '\u26D4',\n                            },\n                            {\n                                type: 'pre',\n                                id: 'uib_last_msg',\n                                // parent: 'uib_last_msg_wrap',\n                                attributes: {\n                                    class: 'syntax-highlight',\n                                },\n                                slot: slot,\n                            },\n                        ],\n                    },\n                ],\n            })\n        }\n\n        return showHide\n    }\n\n    /** Show a browser notification if possible.\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * @example uibuilder.notify( 'My simple message to the user' )\n     * @example uibuilder.notify( {topic: 'My Title', payload: 'My simple message to the user'} )\n     * @example uibuilder.notify( {title: 'My Title', body: 'My simple message to the user'} )\n     * @example // If config.return = true, a promise is returned.\n     * // The resolved promise is only returned if the notification is clicked by the user.\n     * // Can be used to send the response back to Node-RED\n     * uibuilder.notify(notifyConfig).then( res => uibuilder.eventSend(res) )\n     * @ref https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config data or simple message string\n     * @returns {Promise<Event>|null} A promise that resolves to the click event or null\n     */\n    notify(config) {\n        if (config.return) return _ui.notification(config)\n\n        _ui.notification(config)\n            .then( res => { // eslint-disable-line promise/always-return\n                log('info', 'Uib:notification', 'Notification completed event', res)()\n                // if (config.return) return res\n            })\n            .catch( err => {\n                log('error', 'Uib:notification', 'Notification error event', err)()\n            })\n        return null\n    }\n\n    /** Scroll the page\n     * https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollIntoView\n     * @param {string} [cssSelector] Optional. If not set, scrolls to top of page.\n     * @param {{block:(string|undefined),inline:(string|undefined),behavior:(string|undefined)}} [opts] Optional. DOM scrollIntoView options\n     * @returns {boolean} True if element was found, false otherwise\n     */\n    scrollTo(cssSelector, opts) {\n        // @ts-ignore\n        if (!opts) opts = {}\n        if (!cssSelector || cssSelector === 'top'  || cssSelector === 'start') cssSelector = 'body'\n        else if (cssSelector === 'bottom' || cssSelector === 'end') {\n            cssSelector = 'body'\n            opts.block = 'end'\n        }\n        const el = this.$(cssSelector)\n        if (el) {\n            el.scrollIntoView(opts)\n            return true\n        }\n        return false\n    }\n\n    /** Show/hide a display card on the end of the visible HTML that will dynamically display the current status of the uibuilder client\n     * The card has the id `uib_status`.\n     * The display is updated by an event listener created in the class constructor.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showStatus(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowStatus\n        this.#isShowStatus = showHide\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_status',\n                ],\n            })\n            return showHide\n        }\n\n        const root = {\n            components: [\n                {\n                    type: 'div',\n                    id: 'uib_status',\n                    parent: parent,\n                    attributes: {\n                        title: 'Current status of the uibuilder client',\n                        class: 'text-smaller',\n                    },\n                    components: [\n                        {\n                            'type': 'table',\n                            'components': [\n                                {\n                                    'type': 'tbody',\n                                    'components': []\n                                }\n                            ]\n                        }\n                    ]\n                }\n            ]\n        }\n        const details = root.components[0].components[0].components[0].components\n\n        Object.values(this.#showStatus).forEach( entry => {\n            details.push({\n                'type': 'tr',\n                'attributes': {\n                    title: entry.description,\n                },\n                'components': [\n                    {\n                        'type': 'th',\n                        'slot': entry.label,\n                    },\n                    {\n                        'type': 'td',\n                        'attributes': {\n                            'data-varType': entry.var,\n                        },\n                        'slot': entry.var === 'version' ? Uib._meta.version : JSON.stringify(this[entry.var]),\n                    }\n                ],\n            })\n        })\n\n        _ui._uiReplace(root)\n\n        return showHide\n    }\n\n    /** Use the Mutation Observer browser API to watch for changes to a single element on the page.\n     * OMG! It is sooo hard to turn the data into something that successfully serialises so it can be sent back to Node-RED!\n     * NB: Each cssSelector creates a unique watcher. Sending the same selector overwrites the previous one.\n     * @param {string} cssSelector A CSS Selector that selects the element to watch for changes\n     * @param {boolean|\"toggle\"} [startStop] true=start watching the DOM, false=stop. Default='toggle'\n     * @param {boolean} [send] true=Send changes to Node-RED, false=Don't send. Default=true\n     * @param {boolean} [showLog] true=Output changes to log, false=stop. Default=true. Log level is 2 (Info)\n     * @returns {boolean} True if the watch is on, false otherwise\n     */\n    uiWatch(cssSelector, startStop = 'toggle', send = true, showLog = true) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.querySelector(cssSelector)\n        if (!targetNode) {\n            log('warn', 'uibuilder.module.js:uiWatch', `CSS Selector '${cssSelector}' not found.`)()\n            return false\n        }\n\n        if (startStop === 'toggle' || startStop === undefined || startStop === null) {\n            if (this.#uiObservers[cssSelector]) startStop = false\n            else startStop = true\n        }\n\n        // Need a ref to the Uib this\n        const that = this\n\n        if (startStop === true) {\n            // Create an observer instance\n            this.#uiObservers[cssSelector] = new MutationObserver( function( mutationList /* , observer */ ) {\n                const out = []\n\n                mutationList.forEach( mu => {\n                    // console.log({ mu })\n                    const oMu = {\n                        type: mu.type,\n                        oldValue: mu.oldValue !== null ? mu.oldValue : undefined,\n                    }\n\n                    if (mu.addedNodes.length > 0) {\n                        oMu.addedNodes = []\n                        mu.addedNodes.forEach( (an, i) => {\n                            oMu.addedNodes.push(_ui.nodeGet(mu.addedNodes[i]))\n                        })\n                    }\n\n                    if (mu.removedNodes.length > 0) {\n                        oMu.removedNodes = []\n                        mu.removedNodes.forEach( (an, i) => {\n                            oMu.removedNodes.push(_ui.nodeGet(mu.removedNodes[i]))\n                        })\n                    }\n\n                    if ( mu.type === 'attributes' ) {\n                        oMu.attributeName = mu.attributeName\n                        // @ts-ignore\n                        oMu.newValue = mu.target.attributes[mu.attributeName].value\n                    }\n\n                    out.push(oMu)\n                })\n\n                // Custom event\n                that._dispatchCustomEvent('uibuilder:domChange', out)\n                // Send a msg back to node-red\n                if (send === true) {\n                    that.send({\n                        _ui: {\n                            cssSelector: cssSelector,\n                            uiChanges: out\n                        },\n                        topic: that.topic || `DOM Changes for '${cssSelector}'`,\n                    })\n                }\n                // Log to info\n                if (showLog === true) {\n                    log('info', 'uibuilder.module.js:uiWatch', `DOM Changes for '${cssSelector}'`, { uiChanges: out }, { mutationList })()\n                }\n            } )\n\n            // Start observing the target node for configured mutations\n            this.#uiObservers[cssSelector].observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:uiWatch', `Started Watching DOM changes for '${cssSelector}'`)()\n        } else {\n            this.#uiObservers[cssSelector].disconnect()\n            delete this.#uiObservers[cssSelector]\n            log('trace', 'uibuilder.module.js:uiWatch', `Stopped Watching DOM changes for '${cssSelector}'`)()\n        }\n\n        return startStop\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- HTML cache and DOM watch --------- //\n\n    /** Clear the saved DOM from localStorage */\n    clearHtmlCache() {\n        this.removeStore('htmlCache')\n        log('trace', 'uibuilder.module.js:clearHtmlCache', 'HTML cache cleared')()\n    }\n\n    /** Restore the complete DOM (the whole web page) from browser localStorage if available */\n    restoreHtmlFromCache() {\n        // Is the html cached? If so, restore it\n        const htmlCache = this.getStore('htmlCache')\n        if (htmlCache) {\n            const targetNode = document.getElementsByTagName('html')[0]\n            // Restore the entire HTML\n            targetNode.innerHTML = htmlCache\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'Restored HTML from cache')()\n        } else {\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'No cache to restore')()\n        }\n    }\n\n    /** Save the current DOM state to browser localStorage.\n     * localStorage is persistent and so can be recovered even after a browser restart.\n     */\n    saveHtmlCache() {\n        // Save the updated entire HTML in localStorage\n        this.setStore('htmlCache', document.documentElement.innerHTML)\n    }\n\n    /** Use the Mutation Observer browser API to watch for and save changes to the HTML\n     * Once the observer is created, it will be reused.\n     * Sending true or undefined will turn on the observer, false turns it off.\n     * saveHtmlCache is called whenever anything changes in the dom. This allows\n     * users to call restoreHtmlFromCache() on page load if desired to completely reload\n     * to the last saved state.\n     * @param {boolean} startStop true=start watching the DOM, false=stop\n     */\n    watchDom(startStop) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.documentElement\n\n        // Need a ref to the Uib this\n        const that = this\n\n        // Create an observer instance\n        if (!this._htmlObserver) {\n            this._htmlObserver = new MutationObserver( function(/* mutationList, observer */) {\n                // We don't need to know the details - so kill off any outstanding mutation records\n                this.takeRecords()\n                // Save the updated entire HTML in localStorage\n                that.saveHtmlCache()\n            } )\n        }\n\n        if (startStop === true || startStop === undefined) {\n            // Start observing the target node for configured mutations\n            this._htmlObserver.observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:watchDom', 'Started Watching and saving DOM changes')()\n        } else {\n            this._htmlObserver.disconnect()\n            log('trace', 'uibuilder.module.js:watchDom', 'Stopped Watching and saving DOM changes')()\n        }\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- Message Handling (To/From Node-RED) -------- //\n\n    /** Internal send fn. Send a standard or control msg back to Node-RED via Socket.IO\n     * NR will generally expect the msg to contain a payload topic\n     * @param {object} msgToSend The msg object to send.\n     * @param {string} [channel=uiBuilderClient] The Socket.IO channel to use, must be in self.ioChannels or it will be ignored\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    _send(msgToSend, channel, originator = '') {\n        if (channel === null || channel === undefined) channel = this._ioChannels.client\n\n        // Make sure msgToSend is an object\n        if (channel === this._ioChannels.client) {\n            msgToSend = makeMeAnObject(msgToSend, 'payload')\n        } else if (channel === this._ioChannels.control) {\n            msgToSend = makeMeAnObject(msgToSend, 'uibuilderCtrl')\n            if (!Object.prototype.hasOwnProperty.call(msgToSend, 'uibuilderCtrl')) {\n                msgToSend.uibuilderCtrl = 'manual send'\n            }\n            // help remember where this came from as ctrl msgs can come from server or client\n            msgToSend.from = 'client'\n        }\n\n        /** since 2020-01-02 Added _socketId which should be the same as the _socketId on the server */\n        msgToSend._socketId = this._socket.id\n\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n\n        // Add the originator metadata if required\n        if (originator === '' && this.originator !== '') originator = this.originator\n        if (originator !== '') Object.assign(msgToSend, { '_uib': { 'originator': originator } })\n\n        // If the msg does not have a topic - see if we want to add one\n        if ( !Object.prototype.hasOwnProperty.call(msgToSend, 'topic') ) {\n            // From the default (`uibuilder.set('topic', 'some topic')`)\n            if (this.topic !== undefined && this.topic !== '') msgToSend.topic = this.topic\n            else {\n                // Did the last inbound msg have a topic?\n                if ( Object.prototype.hasOwnProperty.call(this, 'msg') && Object.prototype.hasOwnProperty.call(this.msg, 'topic') ) {\n                    msgToSend.topic = this.msg.topic\n                }\n            }\n        }\n\n        // If a standard send & _ui property exists, make sure to add _ui.from = 'client'\n        if (msgToSend._ui) msgToSend._ui.from = 'client'\n\n        // Track how many messages have been sent & last msg sent\n        let numMsgs\n        if (channel === this._ioChannels.client) {\n            this.set('sentMsg', msgToSend)\n            numMsgs = this.set('msgsSent', ++this.msgsSent)\n        } else if (channel === this._ioChannels.control) {\n            this.set('sentCtrlMsg', msgToSend)\n            numMsgs = this.set('msgsSentCtrl', ++this.msgsSentCtrl)\n        }\n        log('trace', 'Uib:_send', ` Channel '${channel}'. Sending msg #${numMsgs}`, msgToSend)()\n\n        this._socket.emit(channel, msgToSend)\n    } // --- End of Send Msg Fn --- //\n\n    /** Send a standard message to NR\n     * @example uibuilder.send({payload:'Hello'})\n     * @param {object} msg Message to send\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    send(msg, originator = '') {\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Send a control msg to NR\n     * @param {object} msg Message to send\n     */\n    sendCtrl(msg) {\n        this._send(msg, this._ioChannels.control)\n    }\n\n    /** Easily send a msg back to Node-RED on a DOM event\n     * @example In plain HTML/JavaScript\n     *    `<button id=\"button1\" name=\"button 1\" data-fred=\"jim\"></button>`\n     *    $('#button1').onclick = (evt) => {\n     *      uibuilder.eventSend(evt)\n     *    }\n     * @example\n     * In VueJS: `<b-button id=\"myButton1\" @click=\"doEvent\" data-something=\"hello\"></b-button>`\n     * In VueJS methods: `doEvent: uibuilder.eventSend,`\n     *\n     * All `data-` attributes will be passed back to Node-RED,\n     *    use them instead of arguments in the click function.\n     *    All target._ui custom properties are also passed back to Node-RED.\n     *\n     * @param {MouseEvent|any} domevent DOM Event object\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    eventSend(domevent, originator = '') { // eslint-disable-line sonarjs/cognitive-complexity\n        // @ts-ignore Handle case where vue messes up `this`\n        if ( this.$attrs ) {\n            log('error', 'Uib:eventSend', '`this` has been usurped by VueJS. Make sure that you wrap the call in a function: `doEvent: function (event) { uibuilder.eventSend(event) },`' )()\n            return\n        }\n        if (!domevent && !event) {\n            log('warn', 'Uib:eventSend', 'Neither the domevent nor the hidden event properties are set. You probably called this function directly rather than applying to an on click event.' )()\n            return\n        }\n        // Handle no argument, e.g. <button onClick=\"uibuilder.eventSend()\"> - event is a hidden variable when fn used in addEventListener\n        if (!domevent || !domevent.constructor) domevent = event\n\n        // The argument must be a DOM event\n        if ((!domevent.constructor.name.endsWith('Event')) || (!domevent.currentTarget)) {\n            log('warn', 'Uib:eventSend', `ARGUMENT NOT A DOM EVENT - use data attributes not function arguments to pass data. Arg Type: ${domevent.constructor.name}`, domevent)()\n            return\n        }\n\n        // Prevent default event action\n        domevent.preventDefault()\n\n        // The target element\n        const target = domevent.currentTarget\n\n        // Get target properties - only shows custom props not element default ones\n        const props = {}\n        Object.keys(target).forEach( key => {\n            if (key.startsWith('_')) return // Exclude private\n            props[key] = target[key]\n        })\n\n        // Attempt to get target attributs - can fail for certain target types\n        const ignoreAttribs = ['class', 'id', 'name']\n        let attribs\n        try {\n            attribs = Object.assign({},\n                ...Array.from(target.attributes,\n                    ( { name, value } ) => {\n                        if ( !ignoreAttribs.includes(name) ) {\n                            return ({ [name]: value })\n                        }\n                        return undefined\n                    }\n                )\n            )\n        } catch (e) {}\n\n        // If target embedded in a form, include the form data\n        let form\n        const frmVals = []\n        if ( target.form ) {\n            form = {}\n            form.valid = target.form.checkValidity()\n            Object.values(target.form).forEach( (frmEl, i) => {\n                const id = frmEl.id !== '' ? frmEl.id : (frmEl.name !== '' ? frmEl.name : `${i}-${frmEl.type}`)\n\n                // We must have both an element id (we may have forced one above) AND\n                // the element type MUST be not undefined - to allow for the extra properties added by frameworks such as Svelte\n                if (id !== '' && frmEl.type) {\n                    // Stupid HTML doesn't use value attrib for checkboxes. So override if value is set to default\n                    if ('checked' in frmEl && frmEl.value === 'on') frmEl.value = frmEl.checked.toString()\n\n                    frmVals.push( { key: id, val: frmEl.value } ) // simplified for addition to msg.payload\n\n                    form[id] = {\n                        'id': frmEl.id,\n                        'name': frmEl.name,\n                        'value': frmEl.value,\n                        'valid': frmEl.checkValidity(),\n                        'type': frmEl.type,\n                    }\n\n                    if (form[id].valid === false) {\n                        const v = frmEl.validity\n                        form[id].validity = {\n                            badInput: v.badInput === true ? v.badInput : undefined,\n                            customError: v.customError === true ? v.customError : undefined,\n                            patternMismatch: v.patternMismatch === true ? v.patternMismatch : undefined,\n                            rangeOverflow: v.rangeOverflow === true ? v.rangeOverflow : undefined,\n                            rangeUnderflow: v.rangeUnderflow === true ? v.rangeUnderflow : undefined,\n                            stepMismatch: v.stepMismatch === true ? v.stepMismatch : undefined,\n                            tooLong: v.tooLong === true ? v.tooLong : undefined,\n                            tooShort: v.tooShort === true ? v.tooShort : undefined,\n                            typeMismatch: v.typeMismatch === true ? v.typeMismatch : undefined,\n                            valueMissing: v.valueMissing === true ? v.valueMissing : undefined,\n                        }\n                    }\n\n                    if (frmEl.dataset) form[id].data = frmEl.dataset\n                }\n            })\n        }\n\n        // Check for CSS Classes\n        let classes\n        try {\n            classes = Array.from(target.classList)\n        } catch (e) {}\n\n        // Each `data-xxxx` attribute is added as a property\n        let payload = { ...target.dataset }\n\n        // Handle Notification events\n        let nprops\n        if ( Object.prototype.toString.call(target) === '[object Notification]') {\n            // Fixed payload for convenience\n            payload = `notification-${target.userAction}`\n            // Capture the notification properties\n            nprops = {\n                // userAction: target.userAction, // uib custom prop: click, close or error\n                actions: target.actions,\n                badge: target.badge,\n                body: target.body,\n                data: target.data,\n                dir: target.dir,\n                icon: target.icon,\n                image: target.image,\n                lang: target.lang,\n                renotify: target.renotify,\n                requireInteraction: target.requireInteraction,\n                silent: target.silent,\n                tag: target.tag,\n                timestamp: target.timestamp,\n                title: target.title,\n                vibrate: target.vibrate,\n            }\n        }\n        // console.log(Object.prototype.toString.call(target))\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            // - this may be an empty Object if no data attributes defined\n            payload: payload,\n\n            _ui: {\n                type: 'eventSend',\n                id: target.id !== '' ? target.id : undefined,\n                name: target.name !== '' ? target.name : undefined,\n                slotText: target.textContent ? target.textContent.substring(0, 255) : undefined,\n\n                form: form,\n                props: props,\n                attribs: attribs,\n                classes: classes,\n\n                notification: nprops,\n\n                event: domevent.type,\n                altKey: domevent.altKey,\n                ctrlKey: domevent.ctrlKey,\n                shiftKey: domevent.shiftKey,\n                metaKey: domevent.metaKey,\n\n                pointerType: domevent.pointerType,\n                nodeName: target.nodeName,\n\n                clientId: this.clientId,\n                pageName: this.pageName,\n                tabId: this.tabId,\n            }\n        }\n\n        if (frmVals.length > 0) {\n            frmVals.forEach( entry => {\n                msg.payload[entry.key] = entry.val\n            })\n        }\n\n        if (domevent.type === 'change') {\n            // Checkboxes don't have a value!!\n            msg._ui.newValue = msg.payload.value = 'checked' in target ? target.checked : domevent.target.value\n        }\n\n        log('trace', 'Uib:eventSend', 'Sending msg to Node-RED', msg)()\n        if (target.dataset && target.dataset.length === 0) log('warn', 'Uib:eventSend', 'No payload in msg. data-* attributes should be used.')()\n\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Easily send the entire DOM/HTML msg back to Node-RED\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     * @param {boolean} [send] If true (default) directly send response to Node-RED. Is false when calling from Node-RED as a command.\n     * @returns {string} The HTML as a string\n     */\n    htmlSend(originator = '', send = true) {\n        const out = `<!doctype html>\\n${document.documentElement.outerHTML}`\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            payload: out,\n            length: out.length,\n            topic: this.topic,\n        }\n\n        log('trace', 'Uib:htmlSend', 'Sending full HTML to Node-RED', msg)()\n\n        if (send === true) this._send(msg, this._ioChannels.client, originator)\n        return out\n    }\n\n    /** Process msg._uib.command - Remember to update #extCommands with new allowed commands\n     * @param {object} msg Msg from Node-RED containing a msg._uib object\n     */\n    _uibCommand(msg) {\n        if (!msg._uib || !msg._uib.command) {\n            log('error', 'uibuilder:_uibCommand', 'Invalid command message received', { msg })()\n            msg.payload = msg.error = 'Invalid command message received'\n            this.send(msg)\n            return\n        }\n        const cmd = msg._uib.command\n        // Disallowed command request outputs error and ignores the msg (NB: Case must match)\n        if (!this.#extCommands.includes(cmd.trim())) {\n            log('error', 'Uib:_uibCommand', `Command '${cmd} is not allowed to be called externally`)()\n            return\n        }\n        const prop = msg._uib.prop\n        const value = msg._uib.value\n        const quiet = msg._uib.quiet ?? false\n        let response, info\n\n        // Don't forget to update `#extCommands`, `docs/client-docs/control-from-node-red.md` & `functions.md`\n        switch (cmd) {\n            case 'elementIsVisible': {\n                response = this.elementIsVisible(prop)\n                // info = `Element \"${prop}\" ${response ? 'is visible' : 'is not visible'}`\n                break\n            }\n\n            case 'elementExists': {\n                response = this.elementExists(prop, false)\n                info = `Element \"${prop}\" ${response ? 'exists' : 'does not exist'}`\n                break\n            }\n\n            case 'get': {\n                response = this.get(prop)\n                break\n            }\n\n            case 'getManagedVarList': {\n                if (prop === 'full') response = this.getManagedVarList()\n                else response = Object.values(this.getManagedVarList())\n                break\n            }\n\n            case 'getWatchedVars': {\n                if (prop === 'full') response = this.getWatchedVars()\n                else response = Object.values(this.getWatchedVars())\n                break\n            }\n\n            case 'htmlSend': {\n                response = this.htmlSend('', false)\n                break\n            }\n\n            case 'include': {\n                // include is async\n                response = _ui.include(prop, value)\n                break\n            }\n\n            case 'navigate': {\n                let newUrl\n                if (prop) newUrl = prop\n                else if (value) newUrl = value\n                response = this.navigate(newUrl)\n                break\n            }\n\n            case 'scrollTo': {\n                response = this.scrollTo(prop, value)\n                break\n            }\n\n            case 'set': {\n                let store = false\n                let autoload = false\n                if (msg._uib.options && msg._uib.options.store) {\n                    if (msg._uib.options.store === true) store = true\n                    if (msg._uib.options.autoload === true) autoload = true\n                }\n                response = this.set(prop, value, store, autoload)\n                break\n            }\n\n            case 'showMsg': {\n                response = this.showMsg(value, prop)\n                break\n            }\n\n            case 'showStatus': {\n                response = this.showStatus(value, prop)\n                break\n            }\n\n            case 'uiGet': {\n                response = _ui.uiGet(prop, value)\n                break\n            }\n\n            case 'uiWatch': {\n                response = this.uiWatch(prop)\n                break\n            }\n\n            case 'watchUrlHash': {\n                response = this.watchUrlHash(prop)\n                break\n            }\n\n            default: {\n                log('warning', 'Uib:_uibCommand', `Command '${cmd}' not yet implemented`)()\n                break\n            }\n        }\n\n        if (quiet !== true) {\n            if (response === undefined) {\n                response = `'${prop}' is undefined`\n            }\n            if (Object(response).constructor === Promise) {\n                // response = `'${cmd} ${prop}' submitted. Cmd is async, no response available`\n                response\n                    .then( (/** @type {any} */ data) => {\n                        msg.payload = msg._uib.response = data\n                        msg.info = msg._uib.info = info\n                        if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                        this.send(msg)\n                        return true\n                    })\n                    .catch( err => {\n                        log(0, 'Uib:_uibCommand', 'Error: ', err)()\n                    })\n            } else {\n                msg.payload = msg._uib.response = response\n                msg.info = msg._uib.info = info\n                if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                this.send(msg)\n            }\n        }\n    } // --- end of _uibCommand ---\n\n    /** Do we want to process something? Check pageName, clientId, tabId. Defaults to yes.\n     * @param {*} obj Either a msg._ui or msg._uib object to check\n     * @returns {boolean} True if we should process the inbound _ui/_uib msg, false if not.\n     */\n    _forThis(obj) {\n        let r = true\n\n        // Is this msg for this pageName?\n        if (obj.pageName && obj.pageName !== this.pageName) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this page')()\n            r = false\n        }\n\n        // Is this msg for this clientId?\n        if (obj.clientId && obj.clientId !== this.clientId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this clientId')()\n            r = false\n        }\n\n        // Is this msg for this tabId?\n        if (obj.tabId && obj.tabId !== this.tabId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this tabId')()\n            r = false\n        }\n\n        return r\n    }\n\n    // Handle received messages - Process some msgs internally, emit specific events on document that make it easy for coders to use\n    _msgRcvdEvents(msg) {\n        // Message received\n        this._dispatchCustomEvent('uibuilder:stdMsgReceived', msg)\n\n        // Topic\n        if ( msg.topic ) this._dispatchCustomEvent(`uibuilder:msg:topic:${msg.topic}`, msg)\n\n        // Handle msg._uib special requests\n        if (msg._uib) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._uib)) return\n\n            /** Process a client reload request from Node-RED - as the page is reloaded, everything else is ignored\n             * Note that msg._ui.reload is also actioned via the _ui processing below */\n            if (msg._uib.reload === true) {\n                log('trace', 'Uib:_msgRcvdEvents:_uib:reload', 'reloading')()\n                location.reload()\n                return\n            }\n\n            // Process msg._uib.command messages - allows Node-RED to run uibuilder FE functions\n            if (msg._uib.command) {\n                this._uibCommand(msg)\n                return\n            }\n\n            // Better to request via msg._ui - these are for backwards compatibility\n            if ( msg._uib.componentRef === 'globalNotification' ) {\n                _ui.showDialog('notify', msg._uib.options, msg)\n            }\n            if ( msg._uib.componentRef === 'globalAlert' ) {\n                _ui.showDialog('alert', msg._uib.options, msg)\n            }\n        }\n\n        // Handle msg._ui requests\n        if ( msg._ui ) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._ui)) return\n\n            log('trace', 'Uib:_msgRcvdEvents:_ui', 'Calling _uiManager')()\n            this._dispatchCustomEvent('uibuilder:msg:_ui', msg)\n            _ui._uiManager(msg)\n        }\n    } // --- end of _msgRcvdEvents ---\n\n    /** Callback handler for messages from Node-RED\n     * NOTE: `this` is the class here rather the `socket` as would be normal since we bind the correct `this` in the call.\n     *       Use this._socket if needing reference to the socket.\n     * @callback ioSetupFromServer Called from ioSetup/this._socket.on(this.#ioChannels.server, this.stdMsgFromServer.bind(this))\n     * @param {object} receivedMsg The msg object from Node-RED\n     * @this Uib\n     */\n    _stdMsgFromServer(receivedMsg) {\n\n        // Make sure that msg is an object & not null\n        receivedMsg = makeMeAnObject(receivedMsg, 'payload')\n\n        // Don't process if the inbound msg is not for us\n        if (receivedMsg._uib && !this._forThis(receivedMsg._uib)) return\n        if (receivedMsg._ui && !this._forThis(receivedMsg._ui)) return\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedMsg)\n\n        // Track how many messages have been received\n        this.set('msgsReceived', ++this.msgsReceived)\n\n        // Emit specific document events on msg receipt that make it easy for coders to use\n        this._msgRcvdEvents(receivedMsg)\n\n        if ( !('_ui' in receivedMsg && !('payload' in receivedMsg)) ) {\n            // Save the msg for further processing\n            this.set('msg', receivedMsg)\n        }\n\n        log('info', 'Uib:ioSetup:stdMsgFromServer', `Channel '${this._ioChannels.server}'. Received msg #${this.msgsReceived}.`, receivedMsg)()\n\n        // ! NOTE: Don't try to handle specialist messages here. See _msgRcvdEvents.\n\n    } // -- End of websocket receive DATA msg from Node-RED -- //\n\n    /** Handles original control msgs (not to be confused with \"new\" msg._uib controls)\n     * @param {*} receivedCtrlMsg The msg received on the socket.io control channel\n     */\n    _ctrlMsgFromServer(receivedCtrlMsg) {\n\n        // Make sure that msg is an object & not null\n        if (receivedCtrlMsg === null) {\n            receivedCtrlMsg = {}\n        } else if (typeof receivedCtrlMsg !== 'object') {\n            const msg = {}\n            msg['uibuilderCtrl:' + this._ioChannels.control] = receivedCtrlMsg\n            receivedCtrlMsg = msg\n        }\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedCtrlMsg)\n\n        this.set('ctrlMsg', receivedCtrlMsg)\n        this.set('msgsCtrlReceived', ++this.msgsCtrlReceived)\n\n        log('trace', 'Uib:ioSetup:_ctrlMsgFromServer', `Channel '${this._ioChannels.control}'. Received control msg #${this.msgsCtrlReceived}`, receivedCtrlMsg)()\n\n        /** Process control msg types */\n        switch (receivedCtrlMsg.uibuilderCtrl) {\n            // Node-RED is shutting down\n            case 'shutdown': {\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, '\u274C Received \"shutdown\" from server')()\n                this.set('serverShutdown', undefined)\n                break\n            }\n\n            /** We are connected to the server - 1st msg from server */\n            case 'client connect': {\n                log('trace', `Uib:ioSetup:${this._ioChannels.control}`, 'Received \"client connect\" from server')()\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, `\u2705 Server connected. Version: ${receivedCtrlMsg.version}\\nServer time: ${receivedCtrlMsg.serverTimestamp}, Sever time offset: ${this.serverTimeOffset} hours`)()\n\n                if ( !Uib._meta.version.startsWith(receivedCtrlMsg.version.split('-')[0]) ) {\n                    log('warn', `Uib:ioSetup:${this._ioChannels.control}`, `Server version (${receivedCtrlMsg.version}) not the same as the client version (${Uib._meta.version})`)()\n                }\n\n                if (this.autoSendReady === true) { // eslint-disable-line no-lonely-if\n                    log('trace', `Uib:ioSetup:${this._ioChannels.control}/client connect`, 'Auto-sending ready-for-content/replay msg to server')\n                    // @since 0.4.8c Add cacheControl property for use with node-red-contrib-infocache\n                    // @since 6.1.0 Don't bother, we use the \"client connect\" msg\n                    // this._send({\n                    //     'uibuilderCtrl': 'ready for content',\n                    //     'cacheControl': 'REPLAY',\n                    // }, this._ioChannels.control)\n                }\n\n                break\n            }\n\n            default: {\n                log('trace', `uibuilderfe:ioSetup:${this._ioChannels.control}`, `Received ${receivedCtrlMsg.uibuilderCtrl} from server`)\n                // Anything else to do for other control msgs?\n            }\n\n        } // ---- End of process control msg types ---- //\n\n    } // -- End of websocket receive CONTROL msg from Node-RED -- //\n\n    /** Send log text to uibuilder's beacon endpoint (works even if socket.io not connected)\n     * @param {string} txtToSend Text string to send\n     * @param {string|undefined} logLevel Log level to use. If not supplied, will default to debug\n     */\n    beaconLog(txtToSend, logLevel) {\n        if (!logLevel) logLevel = 'debug'\n        navigator.sendBeacon('./_clientLog', `${logLevel}::${txtToSend}`)\n    }\n\n    /** Send log info back to Node-RED over uibuilder's websocket control output (Port #2)\n     * @param {...*} arguments All arguments passed to the function are added to the msg.payload\n     */\n    logToServer() {\n        this.sendCtrl({\n            uibuilderCtrl: 'client log message',\n            payload: arguments,\n            // \"version\":\"6.1.0-iife.min\",\n            _socketId: this._socket.id,\n            // \"ip\":\"::1\",\n            clientId: this.clientId,\n            tabId: this.tabId,\n            // \"url\":\"esp-test\",\n            pageName: this.pageName,\n            connections: this.connectedNum,\n            lastNavType: this.lastNavType,\n        })\n    }\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Socket.IO -------- //\n\n    /** Return the Socket.IO namespace\n     * The cookie method is the most reliable but this falls back to trying to work it\n     * out from the URL if cookies not available. That won't work if page is in a sub-folder.\n     * since 2017-10-21 Improve method to cope with more complex paths - thanks to Steve Rickus @shrickus\n     * since 2017-11-10 v1.0.1 Check cookie first then url. cookie works even if the path is more complex (e.g. sub-folder)\n     * since 2020-01-25 Removed httpRoot from namespace to prevent proxy induced errors\n     * @returns {string} Socket.IO namespace\n     */\n    _getIOnamespace() {\n\n        let ioNamespace\n\n        /** Try getting the namespace cookie. */\n        ioNamespace = this.cookies['uibuilder-namespace']\n\n        // if it wasn't available, try using the current url path\n        if (ioNamespace === undefined || ioNamespace === '') {\n            // split url path & eliminate any blank elements, and trailing or double slashes\n            const u = window.location.pathname.split('/')\n                .filter(function (t) { return t.trim() !== '' })\n\n            /** since v2.0.5 Extra check for 0 length, Issue #73. since 2017-11-06 If the last element of the path is an .html file name, remove it */\n            if (u.length > 0 && (u[u.length - 1].endsWith('.html'))) u.pop()\n\n            // Get the last part of the url path, this MUST match the namespace in uibuilder\n            ioNamespace = u.pop()\n\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via url path: ${ioNamespace}`)()\n        } else {\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via cookie: ${ioNamespace}`)()\n        }\n\n        this.url = ioNamespace\n        // Namespace HAS to start with a /\n        ioNamespace = '/' + ioNamespace\n\n        log('trace', 'uibuilder.module.js:getIOnamespace', `Final Socket.IO namespace: ${ioNamespace}`)()\n\n        return ioNamespace\n    } // --- End of set IO namespace --- //\n\n    /** Function used to check whether Socket.IO is connected to the server, reconnect if not (recursive)\n     * @param {number} [delay] Initial delay before checking (ms). Default=2000ms\n     * @param {number} [factor] Multiplication factor for subsequent checks (delay*factor). Default=1.5\n     * @param {number} [depth] Recursion depth\n     * @returns {boolean|undefined} Whether or not Socket.IO is connected to uibuilder in Node-RED\n     */\n    _checkConnect(delay, factor, depth = 1) {\n        if ( navigator.onLine === false ) return // Don't bother if we know we are offline\n\n        if (!delay) delay = this.retryMs\n        if (!factor) factor = this.retryFactor\n\n        log('trace', 'Uib:checkConnect', `Checking connection. Connected: ${this._socket.connected}. Timer: ${this.#timerid}. Depth: ${depth}. Delay: ${delay}. Factor: ${factor}`, this._socket)()\n\n        // If we are connected ...\n        if (this._socket.connected === true) {\n            // Clear the setTimeout\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this.set('ioConnected', true)\n            this.set('socketError', null)\n            return true\n        }\n\n        // ... we aren't connected so:\n        this.set('ioConnected', false)\n\n        // we only want one running at a time\n        if (this.#timerid) window.clearTimeout(this.#timerid)\n\n        // Create the new timer\n        this.#timerid = window.setTimeout(() => {\n            log('warn', 'Uib:checkConnect:setTimeout', `Socket.IO reconnection attempt. Current delay: ${delay}. Depth: ${depth}`)()\n\n            // this is necessary sometimes when the socket fails to connect on startup\n            this._socket.close()\n\n            // Try to reconnect\n            this._socket.connect()\n\n            // don't need to check whether we have connected as the timer will have been cleared if we have\n            this.#timerid = null\n\n            // @ts-ignore Create new timer for next time round with extended delay\n            this._checkConnect(delay * factor, factor, depth++)\n        }, delay)\n\n        return false\n    } // --- End of checkConnect Fn--- //\n\n    // See message handling section for msg receipt handlers\n\n    /** Called by _ioSetup when Socket.IO connects to Node-RED */\n    _onConnect() {\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n        log('info', 'Uib:ioSetup', `\u2705 SOCKET CONNECTED. Connection count: ${this.connectedNum}, Is a Recovery?: ${this._socket.recovered}. \\nNamespace: ${this.ioNamespace}`)()\n        this._dispatchCustomEvent('uibuilder:socket:connected', { 'numConnections': this.connectedNum, 'isRecovery': this._socket.recovered })\n\n        this._checkConnect() // resets any reconnection timers & sets connected flag\n    }\n\n    /** Called by _ioSetup when Socket.IO disconnects from Node-RED\n     * @param {string} reason Disconnection title\n     */\n    _onDisconnect(reason) {\n        // reason === 'io server disconnect' - redeploy of Node instance\n        // reason === 'transport close' - Node-RED terminating\n        // reason === 'ping timeout' - didn't receive a pong response?\n        log('info', 'Uib:ioSetup:socket-disconnect', `\u26D4 Socket Disconnected. Reason: ${reason}`)()\n\n        this._dispatchCustomEvent('uibuilder:socket:disconnected', reason)\n\n        /** A workaround for SIO's failure to reconnect after a disconnection */\n        this._checkConnect()\n    }\n\n    /** Setup Socket.io\n     * since v2.0.0-beta2 Moved to a function and called by the user (uibuilder.start()) so that namespace & path can be passed manually if needed\n     * @returns {boolean} Attaches socket.io manager to self._socket and updates self.ioNamespace & self.ioPath as needed\n     */\n    _ioSetup() {\n\n        // Just a notification, actual load is done outside the class (see start of file)\n        if (io === undefined) {\n            log('error', 'Uib:ioSetup', 'Socket.IO client not loaded, Node-RED comms will not work')()\n            return false\n        }\n\n        // If socket is already set up, close it and remove all of the listeners\n        if (this._socket) {\n            log('trace', 'Uib:ioSetup', 'Removing listeners in preparation for redoing Socket.IO connections')()\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this._socket.close()\n            this._socket.offAny()\n            this._socket = undefined\n            this.set('ioConnected', false)\n        }\n\n        // Update the URL path to make sure we have the right one\n        this.socketOptions.path = this.ioPath\n\n        // NOTE: this._socket.auth is now set by callback and so automatically updated for each client (re)connection. No need to set here\n\n        // Create the socket - make sure client uses Socket.IO version from the uibuilder module (using path)\n        log('trace', 'Uib:ioSetup', `About to create IO object. Transports: [${this.socketOptions.transports.join(', ')}]`)()\n        this._socket = io(this.ioNamespace, this.socketOptions)\n\n        /** When the socket is connected - set ioConnected flag and reset connect timer  */\n        this._socket.on('connect', this._onConnect.bind(this))\n\n        // RECEIVE a STANDARD, non-control msg from Node-RED server\n        this._socket.on(this._ioChannels.server, this._stdMsgFromServer.bind(this))\n\n        // RECEIVE a CONTROL msg from Node-RED server - see also sendCtrl()\n        this._socket.on(this._ioChannels.control, this._ctrlMsgFromServer.bind(this))\n\n        // When the socket is disconnected ..............\n        this._socket.on('disconnect', this._onDisconnect.bind(this))\n\n        // Socket.io connection error - probably the wrong ioPath - or client is offline\n        this._socket.on('connect_error', (err) => {\n            if ( navigator.onLine === false ) return // Don't bother with an error if we know we are offline\n            log('error', 'Uib:ioSetup:connect_error', `\u274C Socket.IO Connect Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket connect error processing ---\n\n        // Socket.io error - from the server (socket.use middleware triggered an error response)\n        this._socket.on('error', (err) => {\n            log('error', 'Uib:ioSetup:error', `\u274C Socket.IO Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket error processing ---\n\n        // Ensure we are connected, retry if not\n        this._checkConnect()\n\n        return true\n\n        /* We really don't need these, just for interest\n            self._socket.io.on('packet', function onPacket(data){\n                // we get one of these for each REAL msg (not ping/pong)\n                console.debug('PACKET', data)\n            })\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n                //console.dir(self._socket)\n            }) // --- End of socket pong processing ---\n            self._socket.io.on('packet', function(data){\n                // We get one of these for actual messages, not ping/pong\n                console.debug('PACKET', data)\n            })\n            self._socket.on('connect_timeout', function(timeout) {\n                console.debug('SOCKET CONNECT TIMEOUT - Namespace: ' + ioNamespace + ', Timeout: ' + timeout)\n            }) // --- End of socket connect timeout processing ---\n            self._socket.on('reconnect', function(attemptNum) {\n                console.debug('SOCKET RECONNECTED - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect processing ---\n            self._socket.on('reconnect_attempt', function(attemptNum) {\n                console.debug('SOCKET RECONNECT ATTEMPT - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect_attempt processing ---\n            self._socket.on('reconnecting', function(attemptNum) {\n                console.debug('SOCKET RECONNECTING - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnecting processing ---\n            self._socket.on('reconnect_error', function(err) {\n                console.debug('SOCKET RECONNECT ERROR - Namespace: ' + ioNamespace + ', Reason: ' + err.message)\n                //console.dir(err)\n            }) // --- End of socket reconnect_error processing ---\n            self._socket.on('reconnect_failed', function() {\n                console.debug('SOCKET RECONNECT FAILED - Namespace: ' + ioNamespace)\n            }) // --- End of socket reconnect_failed processing ---\n            self._socket.on('ping', function() {\n                console.debug('SOCKET PING')\n            }) // --- End of socket ping processing ---\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n            }) // --- End of socket pong processing ---\n            */\n    } // ---- End of ioSetup ---- //\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Class construction & startup method -------- //\n\n    constructor() {\n        log('trace', 'Uib:constructor', 'Starting')()\n\n        // Track whether the client is online or offline\n        window.addEventListener('offline', (e) => {\n            this.set('online', false)\n            this.set('ioConnected', false)\n            log('warn', 'Browser', 'DISCONNECTED from network')()\n        })\n        window.addEventListener('online', (e) => {\n            this.set('online', true)\n            log('warn', 'Browser', 'Reconnected to network')()\n            this._checkConnect()\n        })\n\n        document.cookie.split(';').forEach((c) => {\n            const splitC = c.split('=')\n            this.cookies[splitC[0].trim()] = splitC[1]\n        })\n\n        /** Client ID set by uibuilder - lasts until browser profile is closed, applies to all tabs */\n        this.set('clientId', this.cookies['uibuilder-client-id'])\n        log('trace', 'Uib:constructor', 'Client ID: ', this.clientId)()\n\n        /** Tab ID - lasts while the tab is open (even if reloaded)\n         * WARNING: Duplicating a tab retains the same tabId\n         */\n        this.set('tabId', window.sessionStorage.getItem('tabId'))\n        if (!this.tabId) {\n            this.set('tabId', `t${Math.floor(Math.random() * 1000000)}`)\n            window.sessionStorage.setItem('tabId', this.tabId)\n        }\n\n        // document.addEventListener('pagehide', (event) => {\n        //     // console.log(`pagehide. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pagehide. From Cache?: ${event.persisted}`)\n        // })\n        // document.addEventListener('pageshow', (event) => {\n        //     // console.log(`pageshow. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pageshow. From Cache?: ${event.persisted}`)\n        // })\n        document.addEventListener('load', () => {\n            this.set('isVisible', true)\n        })\n        document.addEventListener('visibilitychange', () => {\n            // hidden=unload, minimise. visible=un-minimise (not fired on load)\n            this.set('isVisible', document.visibilityState === 'visible')\n            this.sendCtrl({ uibuilderCtrl: 'visibility', isVisible: this.isVisible })\n            // navigator.userActivation is experimental Chromium only\n            // console.log('visibilitychange', ':', `Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n            // navigator.sendBeacon('./_clientLog', `${(new Date()).toISOString()} Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n        })\n\n        // Set a listener to update showStatus table if it is active\n        document.addEventListener('uibuilder:propertyChanged', (event) => {\n            if (!this.#isShowStatus) return\n\n            // @ts-ignore\n            if (event.detail.prop in this.#showStatus) {\n                // @ts-ignore\n                document.querySelector(`td[data-vartype=\"${event.detail.prop}\"]`).innerText = JSON.stringify(event.detail.value)\n            }\n        })\n\n        this.set('ioNamespace', this._getIOnamespace())\n\n        //#region - Try to make sure client uses Socket.IO client version from the uibuilder module (using cookie or path) @since v2.0.0 2019-02-24 allows for httpNodeRoot\n\n        /** httpNodeRoot (to set path) */\n        if ('uibuilder-webRoot' in this.cookies) {\n            this.set('httpNodeRoot', this.cookies['uibuilder-webRoot'])\n            log('trace', 'Uib:constructor', `httpNodeRoot set by cookie to \"${this.httpNodeRoot}\"`)()\n        } else {\n            // split current url path, eliminate any blank elements and trailing or double slashes\n            const fullPath = window.location.pathname.split('/').filter(function (t) { return t.trim() !== '' })\n            /** handle url includes file name - @since v2.0.5 Extra check for 0 length, Issue #73. */\n            if (fullPath.length > 0 && fullPath[fullPath.length - 1].endsWith('.html')) fullPath.pop()\n            fullPath.pop() // gives the last path section of the url\n            this.set('httpNodeRoot', `/${fullPath.join('/')}`)\n            log('trace', '[Uib:constructor]', `httpNodeRoot set by URL parsing to \"${this.httpNodeRoot}\". NOTE: This may fail for pages in sub-folders.`)()\n        }\n        this.set('ioPath', urlJoin(this.httpNodeRoot, Uib._meta.displayName, 'vendor', 'socket.io'))\n        log('trace', 'Uib:constructor', `ioPath: \"${this.ioPath}\"`)()\n\n        //#endregion\n\n        // Work out pageName\n        this.set('pageName', window.location.pathname.replace(`${this.ioNamespace}/`, ''))\n        if ( this.pageName.endsWith('/') ) this.set('pageName', `${this.pageName}index.html`)\n        if ( this.pageName === '' ) this.set('pageName', 'index.html')\n\n        // Attempt to restore autoload variables\n        try {\n            const autoloadVars = this.getStore('_uibAutoloadVars')\n            if (Object.keys(autoloadVars).length > 0) {\n                Object.keys(autoloadVars).forEach( (id) => {\n                    this.set(id, this.getStore(id))\n                })\n            }\n        } catch (e) {}\n\n        this._dispatchCustomEvent('uibuilder:constructorComplete')\n\n        log('trace', 'Uib:constructor', 'Ending')()\n    }\n\n    /** Start up Socket.IO comms and listeners\n     * This has to be done separately because if running from a web page in a sub-folder of src/dist, uibuilder cannot\n     * necessarily work out the correct ioPath to use.\n     * Also, if cookies aren't permitted in the browser, both ioPath and ioNamespace may need to be specified.\n     * @param {object} [options] The start options object.\n     * @returns {void}\n     */\n    start(options) {\n        log('trace', 'Uib:start', 'Starting')()\n\n        // Cancel the msg event handler if already present\n        if ( this.#MsgHandler ) this.cancelChange('msg', this.#MsgHandler)\n\n        if (this.started === true) {\n            log('info', 'Uib:start', 'Start function already called. Resetting Socket.IO and msg handler.')()\n        }\n\n        log('log', 'Uib:start', 'Cookies: ', this.cookies, `\\nClient ID: ${this.clientId}`)()\n        log('trace', 'Uib:start', 'ioNamespace: ', this.ioNamespace, `\\nioPath: ${this.ioPath}`)()\n\n        // Handle options\n        if (options) {\n            if (options.ioNamespace !== undefined && options.ioNamespace !== null && options.ioNamespace !== '') this.set('ioNamespace', options.ioNamespace)\n            if (options.ioPath !== undefined && options.ioPath !== null && options.ioPath !== '') this.set('ioPath', options.ioPath)\n            // See below for handling of options.loadStylesheet\n        }\n\n        // Do we need to load styles?\n        if ( document.styleSheets.length >= 1 || (document.styleSheets.length === 1 && document.styleSheets[0].cssRules.length === 0) ) {\n            log('info', 'Uib:start', 'Styles already loaded so not loading uibuilder default styles.')()\n        } else {\n            if (options && options.loadStylesheet === false) log('info', 'Uib:start', 'No styles loaded & options.loadStylesheet === false.')()\n            else {\n                log('info', 'Uib:start', 'No styles loaded, loading uibuilder default styles.')()\n                this.loadStyleSrc(`${this.httpNodeRoot}/uibuilder/uib-brand.min.css`)\n            }\n        }\n\n        /** Handle specialist messages like reload and _ui -> Moved to _msgRcvdEvents */\n\n        // Track last browser navigation type: navigate, reload, back_forward, prerender\n        const [entry] = performance.getEntriesByType('navigation')\n        // @ts-ignore\n        this.set('lastNavType', entry.type)\n\n        // Start up (or restart) Socket.IO connections and listeners. Returns false if io not found\n        this.set('started', this._ioSetup())\n\n        if ( this.started === true ) {\n            log('trace', 'Uib:start', 'Start completed. Socket.IO client library loaded.')()\n        } else {\n            log('error', 'Uib:start', 'Start completed. ERROR: Socket.IO client library NOT LOADED.')()\n        }\n\n        // Watch for URL hash changes in case using a front-end router. Updates watched var `urlHash` and socket.io `auth.urlHash`\n        this._watchHashChanges()\n\n        // Check if Vue is present (used for dynamic UI processing)\n        if (window['Vue']) {\n            this.set('isVue', true)\n            try {\n                this.set('vueVersion', window['Vue'].version)\n            } catch (e) { }\n            log('trace', 'Uib:start', `VueJS is loaded. Version: ${this.vueVersion}`)()\n        } else {\n            log('trace', 'Uib:start', 'VueJS is not loaded.')()\n        }\n\n        // Check if DOMPurify library is loaded\n        if (window['DOMPurify']) {\n            this.set('purify', true)\n            log('trace', 'Uib:start', 'DOMPurify is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'DOMPurify is not loaded.')()\n        }\n        // Check if Markdown-IT library is loaded\n        if (window['markdownit']) {\n            this.set('markdown', true)\n            log('trace', 'Uib:start', 'Markdown-IT is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'Markdown-IT is not loaded.')()\n        }\n\n        // if (window['DOMPurify']) {\n        //     this.set('purify', true)\n        //     log('trace', 'Uib:start', 'DOMPurify is loaded.')\n        // } else {\n        //     log('trace', 'Uib:start', 'DOMPurify is not loaded.')\n        // }\n\n        // Set up msg listener for the optional showMsg\n        this.onChange('msg', (msg) => {\n            if (this.#isShowMsg === true) {\n                const eMsg = document.getElementById('uib_last_msg')\n                if (eMsg) eMsg.innerHTML = this.syntaxHighlight(msg)\n            }\n        })\n\n        this._dispatchCustomEvent('uibuilder:startComplete')\n    }\n\n    //#endregion -------- ------------ -------- //\n} // ==== End of Class Uib ====\n\n//#region --- Wrap up - get things started ---\n\n// Create an instance (we will only ever want one)\nconst uibuilder = new Uib()\n\n// Assign reference to the instance to the global `window` object\n// Only useful if loading via <script> tag - prefer loading via `import uibuilder from ...`\nif (!window['uibuilder']) {\n    window['uibuilder'] = uibuilder\n} else {\n    log('error', 'uibuilder.module.js', '`uibuilder` already assigned to window. Have you tried to load it more than once?')\n}\nif (!window['uib']) {\n    window['uib'] = uibuilder\n} else {\n    log('warn', 'uibuilder.module.js', '`uib` shortcut already assigned to window.')\n}\n\n// Assign `$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$`.\nif (!window['$']) {\n    /** @type {HTMLElement} */\n    window['$'] = window['uibuilder'].$ // document.querySelector.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` instead.')\n}\n// Assign `$$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$$']) {\n    /** @type {HTMLElement} */\n    window['$$'] = window['uibuilder'].$$ // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` instead.')\n}\n\n// Can import as `import uibuilder from ...` OR `import {uibuilder} from ...`\nexport { uibuilder }\nexport default uibuilder\n\n// Attempt to run start fn\nuibuilder.start()\n\n// Add the class as a new Custom Element to the window object\ncustomElements.define('uib-var', UibVar)\n\n//#endregion --- Wrap up ---\n\n// EOF\n", "/** A zero dependency web component that will display a managed uibuilder variable.\n *\n * Version: 0.0.1 2023-10-07\n *\n * ToDo:\n * -\n */\n/*\n  Copyright (c) 2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n// const template = document.createElement('template')\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<link type=\"text/css\" rel=\"stylesheet\" href=\"\"../uibuilder/uib-brand.min.css\"\" media=\"all\"><span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`\n// {/* <style>@import url(\"../uibuilder/uib-brand.min.css\");</style><span></span> */}\n// `\n\nexport default class UibVar extends HTMLElement {\n    //#region --- Class Properties ---\n    /** @type {string} Name of the uibuilder mangaged variable to use */\n    variable\n    /** Current value of the watched variable */\n    value\n    /** Whether to output if the variable is undefined */\n    undefined = false\n    /** Whether to send update value to Node-RED on change */\n    report = false\n    /** What is the value type */\n    type = 'plain'\n    /** what are the available types? */\n    types = ['plain', 'html', 'markdown', 'object']\n\n    /** Mini jQuery-like shadow dom selector (see constructor) */\n    $\n    \n    /** Holds a count of how many instances of this component are on the page */\n    static _iCount = 0\n    /** @type {Array<string>} List of all of the html attribs (props) listened to */\n    static props = ['name', 'id', 'variable', 'undefined', 'report', 'type']\n    //#endregion --- Class Properties ---\n\n    constructor() {\n        super()\n        this.shadow = this.attachShadow({ mode: 'open', delegatesFocus: true })\n            // .append(template.content.cloneNode(true))\n\n        this.$ = this.shadowRoot.querySelector.bind(this.shadowRoot)\n\n        // Apply external styles to the shadow dom\n        this.css = document.createElement(\"link\")\n        this.css.setAttribute(\"type\", \"text/css\")\n        this.css.setAttribute(\"rel\", \"stylesheet\")\n        this.css.setAttribute(\"href\", \"../uibuilder/uib-brand.min.css\")\n\n        this.dispatchEvent(new Event(`uib-var:construction`, { bubbles: true, composed: true }))\n    }\n\n    // Makes HTML attribute change watched\n    static get observedAttributes() {\n        return UibVar.props\n    }\n\n    /** NOTE: On initial startup, this is called for each watched attrib set in HTML - BEFORE connectedCallback is called  */\n    attributeChangedCallback(attrib, oldVal, newVal) {\n        if ( oldVal === newVal ) return\n\n        switch (attrib) {\n            case 'variable': {\n                if (newVal === '') throw new Error('[uib-var] Attribute \"variable\" MUST be set to a UIBUILDER managed variable name')\n                this.variable = newVal\n                this.doWatch()\n                break\n            }\n            case 'undefined': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.undefined = true\n                else this.undefined = false\n                break\n            }\n            case 'report': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.report = true\n                else this.report = false\n                break\n            }\n            case 'type': {\n                if (newVal === '' || !this.types.includes(newVal.toLowerCase())) this.type = 'plain'\n                else this.type = newVal\n                break\n            }\n\n            default: {\n                this[attrib] = newVal\n                break\n            }\n        }\n    } // --- end of attributeChangedCallback --- //\n\n    // Runs when an instance is added to the DOM\n    connectedCallback() {\n        // Make sure instance has an ID. Create an id from name or calculation if needed\n        if (!this.id) {\n            if (!this.name) this.name = this.getAttribute('name')\n            if (this.name) this.id = this.name.toLowerCase().replace(/\\s/g, '_')\n            else this.id = `uib-var-${++UibVar._iCount}`\n        }\n    }  // ---- end of connectedCallback ---- //\n\n    // Runs when an instance is removed from the DOM\n    // disconnectedCallback() {} // ---- end of disconnectedCallback ---- //\n\n    /** Process changes to the required uibuilder variable */\n    doWatch() {\n        if (!this.variable) throw new Error('No variable name provided')\n        // if (!window['uibuilder']) throw new Error('UIBUILDER client library not loaded - this component must be loaded AFTER the UIBUILDER library')\n\n        this.value = window['uibuilder'].get(this.variable)\n        this.varDom()\n\n        // Watch for changes in the variable\n        window['uibuilder'].onChange(this.variable, (val) => {\n            this.value = val\n            this.varDom()\n            if (this.report === true) window['uibuilder'].send({topic: this.variable, payload: this.value || undefined})\n        })\n    }\n\n    /** Convert this.value to DOM output */\n    varDom() {\n        // If user doesn't want to show undefined vars, allow the component slot to show instead\n        if (this.value === undefined && this.undefined !== true) { \n            this.shadow.innerHTML = '<slot></slot>'\n            return\n        }\n        \n        let val = this.value\n\n        // console.log('\uD83E\uDDEA varDOM: ', val, typeof val, this.type)\n\n        switch (this.type) {\n            case 'markdown': {\n                this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(window['uibuilder'].convertMarkdown(val))\n                break\n            }\n        \n            case 'object': {\n                // console.log(window['uibuilder'].syntaxHighlight(val))\n                this.shadow.innerHTML = `<pre class=\"syntax-highlight\">${window['uibuilder'].syntaxHighlight(val)}</pre>`\n                break\n            }\n        \n            case 'plain':\n            case 'html':\n            default: {\n                const t = typeof val\n                if (Array.isArray(val) || t === '[object Object]' || t === 'object') {\n                    try {\n                        this.shadow.innerHTML = JSON.stringify(val)\n                    } catch (e) {\n                        this.shadow.innerHTML = val\n                    }\n                } else {\n                    this.shadow.innerHTML = val\n                }\n                break\n            }\n        }\n\n        this.shadow.appendChild(this.css)\n        // this.$('span').innerHTML = window['uibuilder'].sanitiseHTML(val)\n        // this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(val)\n    }\n}\n\n// Add the class as a new Custom Element to the window object \n// customElements.define('uib-var', UibVar)\n", "const PACKET_TYPES = Object.create(null); // no Map = no polyfill\nPACKET_TYPES[\"open\"] = \"0\";\nPACKET_TYPES[\"close\"] = \"1\";\nPACKET_TYPES[\"ping\"] = \"2\";\nPACKET_TYPES[\"pong\"] = \"3\";\nPACKET_TYPES[\"message\"] = \"4\";\nPACKET_TYPES[\"upgrade\"] = \"5\";\nPACKET_TYPES[\"noop\"] = \"6\";\nconst PACKET_TYPES_REVERSE = Object.create(null);\nObject.keys(PACKET_TYPES).forEach(key => {\n    PACKET_TYPES_REVERSE[PACKET_TYPES[key]] = key;\n});\nconst ERROR_PACKET = { type: \"error\", data: \"parser error\" };\nexport { PACKET_TYPES, PACKET_TYPES_REVERSE, ERROR_PACKET };\n", "import { PACKET_TYPES } from \"./commons.js\";\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        Object.prototype.toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\n// ArrayBuffer.isView method is not defined in IE10\nconst isView = obj => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj && obj.buffer instanceof ArrayBuffer;\n};\nconst encodePacket = ({ type, data }, supportsBinary, callback) => {\n    if (withNativeBlob && data instanceof Blob) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(data, callback);\n        }\n    }\n    else if (withNativeArrayBuffer &&\n        (data instanceof ArrayBuffer || isView(data))) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(new Blob([data]), callback);\n        }\n    }\n    // plain string\n    return callback(PACKET_TYPES[type] + (data || \"\"));\n};\nconst encodeBlobAsBase64 = (data, callback) => {\n    const fileReader = new FileReader();\n    fileReader.onload = function () {\n        const content = fileReader.result.split(\",\")[1];\n        callback(\"b\" + (content || \"\"));\n    };\n    return fileReader.readAsDataURL(data);\n};\nfunction toArray(data) {\n    if (data instanceof Uint8Array) {\n        return data;\n    }\n    else if (data instanceof ArrayBuffer) {\n        return new Uint8Array(data);\n    }\n    else {\n        return new Uint8Array(data.buffer, data.byteOffset, data.byteLength);\n    }\n}\nlet TEXT_ENCODER;\nexport function encodePacketToBinary(packet, callback) {\n    if (withNativeBlob && packet.data instanceof Blob) {\n        return packet.data\n            .arrayBuffer()\n            .then(toArray)\n            .then(callback);\n    }\n    else if (withNativeArrayBuffer &&\n        (packet.data instanceof ArrayBuffer || isView(packet.data))) {\n        return callback(toArray(packet.data));\n    }\n    encodePacket(packet, false, encoded => {\n        if (!TEXT_ENCODER) {\n            TEXT_ENCODER = new TextEncoder();\n        }\n        callback(TEXT_ENCODER.encode(encoded));\n    });\n}\nexport { encodePacket };\n", "// imported from https://github.com/socketio/base64-arraybuffer\nconst chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';\n// Use a lookup table to find the index.\nconst lookup = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);\nfor (let i = 0; i < chars.length; i++) {\n    lookup[chars.charCodeAt(i)] = i;\n}\nexport const encode = (arraybuffer) => {\n    let bytes = new Uint8Array(arraybuffer), i, len = bytes.length, base64 = '';\n    for (i = 0; i < len; i += 3) {\n        base64 += chars[bytes[i] >> 2];\n        base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];\n        base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];\n        base64 += chars[bytes[i + 2] & 63];\n    }\n    if (len % 3 === 2) {\n        base64 = base64.substring(0, base64.length - 1) + '=';\n    }\n    else if (len % 3 === 1) {\n        base64 = base64.substring(0, base64.length - 2) + '==';\n    }\n    return base64;\n};\nexport const decode = (base64) => {\n    let bufferLength = base64.length * 0.75, len = base64.length, i, p = 0, encoded1, encoded2, encoded3, encoded4;\n    if (base64[base64.length - 1] === '=') {\n        bufferLength--;\n        if (base64[base64.length - 2] === '=') {\n            bufferLength--;\n        }\n    }\n    const arraybuffer = new ArrayBuffer(bufferLength), bytes = new Uint8Array(arraybuffer);\n    for (i = 0; i < len; i += 4) {\n        encoded1 = lookup[base64.charCodeAt(i)];\n        encoded2 = lookup[base64.charCodeAt(i + 1)];\n        encoded3 = lookup[base64.charCodeAt(i + 2)];\n        encoded4 = lookup[base64.charCodeAt(i + 3)];\n        bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n        bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n        bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n    }\n    return arraybuffer;\n};\n", "import { ERROR_PACKET, PACKET_TYPES_REVERSE } from \"./commons.js\";\nimport { decode } from \"./contrib/base64-arraybuffer.js\";\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nexport const decodePacket = (encodedPacket, binaryType) => {\n    if (typeof encodedPacket !== \"string\") {\n        return {\n            type: \"message\",\n            data: mapBinary(encodedPacket, binaryType)\n        };\n    }\n    const type = encodedPacket.charAt(0);\n    if (type === \"b\") {\n        return {\n            type: \"message\",\n            data: decodeBase64Packet(encodedPacket.substring(1), binaryType)\n        };\n    }\n    const packetType = PACKET_TYPES_REVERSE[type];\n    if (!packetType) {\n        return ERROR_PACKET;\n    }\n    return encodedPacket.length > 1\n        ? {\n            type: PACKET_TYPES_REVERSE[type],\n            data: encodedPacket.substring(1)\n        }\n        : {\n            type: PACKET_TYPES_REVERSE[type]\n        };\n};\nconst decodeBase64Packet = (data, binaryType) => {\n    if (withNativeArrayBuffer) {\n        const decoded = decode(data);\n        return mapBinary(decoded, binaryType);\n    }\n    else {\n        return { base64: true, data }; // fallback for old browsers\n    }\n};\nconst mapBinary = (data, binaryType) => {\n    switch (binaryType) {\n        case \"blob\":\n            if (data instanceof Blob) {\n                // from WebSocket + binaryType \"blob\"\n                return data;\n            }\n            else {\n                // from HTTP long-polling or WebTransport\n                return new Blob([data]);\n            }\n        case \"arraybuffer\":\n        default:\n            if (data instanceof ArrayBuffer) {\n                // from HTTP long-polling (base64) or WebSocket + binaryType \"arraybuffer\"\n                return data;\n            }\n            else {\n                // from WebTransport (Uint8Array)\n                return data.buffer;\n            }\n    }\n};\n", "import { encodePacket, encodePacketToBinary } from \"./encodePacket.js\";\nimport { decodePacket } from \"./decodePacket.js\";\nimport { ERROR_PACKET } from \"./commons.js\";\nconst SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text\nconst encodePayload = (packets, callback) => {\n    // some packets may be added to the array while encoding, so the initial length must be saved\n    const length = packets.length;\n    const encodedPackets = new Array(length);\n    let count = 0;\n    packets.forEach((packet, i) => {\n        // force base64 encoding for binary packets\n        encodePacket(packet, false, encodedPacket => {\n            encodedPackets[i] = encodedPacket;\n            if (++count === length) {\n                callback(encodedPackets.join(SEPARATOR));\n            }\n        });\n    });\n};\nconst decodePayload = (encodedPayload, binaryType) => {\n    const encodedPackets = encodedPayload.split(SEPARATOR);\n    const packets = [];\n    for (let i = 0; i < encodedPackets.length; i++) {\n        const decodedPacket = decodePacket(encodedPackets[i], binaryType);\n        packets.push(decodedPacket);\n        if (decodedPacket.type === \"error\") {\n            break;\n        }\n    }\n    return packets;\n};\nexport function createPacketEncoderStream() {\n    return new TransformStream({\n        transform(packet, controller) {\n            encodePacketToBinary(packet, encodedPacket => {\n                const payloadLength = encodedPacket.length;\n                let header;\n                // inspired by the WebSocket format: https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API/Writing_WebSocket_servers#decoding_payload_length\n                if (payloadLength < 126) {\n                    header = new Uint8Array(1);\n                    new DataView(header.buffer).setUint8(0, payloadLength);\n                }\n                else if (payloadLength < 65536) {\n                    header = new Uint8Array(3);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 126);\n                    view.setUint16(1, payloadLength);\n                }\n                else {\n                    header = new Uint8Array(9);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 127);\n                    view.setBigUint64(1, BigInt(payloadLength));\n                }\n                // first bit indicates whether the payload is plain text (0) or binary (1)\n                if (packet.data && typeof packet.data !== \"string\") {\n                    header[0] |= 0x80;\n                }\n                controller.enqueue(header);\n                controller.enqueue(encodedPacket);\n            });\n        }\n    });\n}\nlet TEXT_DECODER;\nfunction totalLength(chunks) {\n    return chunks.reduce((acc, chunk) => acc + chunk.length, 0);\n}\nfunction concatChunks(chunks, size) {\n    if (chunks[0].length === size) {\n        return chunks.shift();\n    }\n    const buffer = new Uint8Array(size);\n    let j = 0;\n    for (let i = 0; i < size; i++) {\n        buffer[i] = chunks[0][j++];\n        if (j === chunks[0].length) {\n            chunks.shift();\n            j = 0;\n        }\n    }\n    if (chunks.length && j < chunks[0].length) {\n        chunks[0] = chunks[0].slice(j);\n    }\n    return buffer;\n}\nexport function createPacketDecoderStream(maxPayload, binaryType) {\n    if (!TEXT_DECODER) {\n        TEXT_DECODER = new TextDecoder();\n    }\n    const chunks = [];\n    let state = 0 /* READ_HEADER */;\n    let expectedLength = -1;\n    let isBinary = false;\n    return new TransformStream({\n        transform(chunk, controller) {\n            chunks.push(chunk);\n            while (true) {\n                if (state === 0 /* READ_HEADER */) {\n                    if (totalLength(chunks) < 1) {\n                        break;\n                    }\n                    const header = concatChunks(chunks, 1);\n                    isBinary = (header[0] & 0x80) === 0x80;\n                    expectedLength = header[0] & 0x7f;\n                    if (expectedLength < 126) {\n                        state = 3 /* READ_PAYLOAD */;\n                    }\n                    else if (expectedLength === 126) {\n                        state = 1 /* READ_EXTENDED_LENGTH_16 */;\n                    }\n                    else {\n                        state = 2 /* READ_EXTENDED_LENGTH_64 */;\n                    }\n                }\n                else if (state === 1 /* READ_EXTENDED_LENGTH_16 */) {\n                    if (totalLength(chunks) < 2) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 2);\n                    expectedLength = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length).getUint16(0);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else if (state === 2 /* READ_EXTENDED_LENGTH_64 */) {\n                    if (totalLength(chunks) < 8) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 8);\n                    const view = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length);\n                    const n = view.getUint32(0);\n                    if (n > Math.pow(2, 53 - 32) - 1) {\n                        // the maximum safe integer in JavaScript is 2^53 - 1\n                        controller.enqueue(ERROR_PACKET);\n                        break;\n                    }\n                    expectedLength = n * Math.pow(2, 32) + view.getUint32(4);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else {\n                    if (totalLength(chunks) < expectedLength) {\n                        break;\n                    }\n                    const data = concatChunks(chunks, expectedLength);\n                    controller.enqueue(decodePacket(isBinary ? data : TEXT_DECODER.decode(data), binaryType));\n                    state = 0 /* READ_HEADER */;\n                }\n                if (expectedLength === 0 || expectedLength > maxPayload) {\n                    controller.enqueue(ERROR_PACKET);\n                    break;\n                }\n            }\n        }\n    });\n}\nexport const protocol = 4;\nexport { encodePacket, encodePayload, decodePacket, decodePayload };\n", "/**\n * Initialize a new `Emitter`.\n *\n * @api public\n */\n\nexport function Emitter(obj) {\n  if (obj) return mixin(obj);\n}\n\n/**\n * Mixin the emitter properties.\n *\n * @param {Object} obj\n * @return {Object}\n * @api private\n */\n\nfunction mixin(obj) {\n  for (var key in Emitter.prototype) {\n    obj[key] = Emitter.prototype[key];\n  }\n  return obj;\n}\n\n/**\n * Listen on the given `event` with `fn`.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.on =\nEmitter.prototype.addEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])\n    .push(fn);\n  return this;\n};\n\n/**\n * Adds an `event` listener that will be invoked a single\n * time then automatically removed.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.once = function(event, fn){\n  function on() {\n    this.off(event, on);\n    fn.apply(this, arguments);\n  }\n\n  on.fn = fn;\n  this.on(event, on);\n  return this;\n};\n\n/**\n * Remove the given callback for `event` or all\n * registered callbacks.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.off =\nEmitter.prototype.removeListener =\nEmitter.prototype.removeAllListeners =\nEmitter.prototype.removeEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n\n  // all\n  if (0 == arguments.length) {\n    this._callbacks = {};\n    return this;\n  }\n\n  // specific event\n  var callbacks = this._callbacks['$' + event];\n  if (!callbacks) return this;\n\n  // remove all handlers\n  if (1 == arguments.length) {\n    delete this._callbacks['$' + event];\n    return this;\n  }\n\n  // remove specific handler\n  var cb;\n  for (var i = 0; i < callbacks.length; i++) {\n    cb = callbacks[i];\n    if (cb === fn || cb.fn === fn) {\n      callbacks.splice(i, 1);\n      break;\n    }\n  }\n\n  // Remove event specific arrays for event types that no\n  // one is subscribed for to avoid memory leak.\n  if (callbacks.length === 0) {\n    delete this._callbacks['$' + event];\n  }\n\n  return this;\n};\n\n/**\n * Emit `event` with the given args.\n *\n * @param {String} event\n * @param {Mixed} ...\n * @return {Emitter}\n */\n\nEmitter.prototype.emit = function(event){\n  this._callbacks = this._callbacks || {};\n\n  var args = new Array(arguments.length - 1)\n    , callbacks = this._callbacks['$' + event];\n\n  for (var i = 1; i < arguments.length; i++) {\n    args[i - 1] = arguments[i];\n  }\n\n  if (callbacks) {\n    callbacks = callbacks.slice(0);\n    for (var i = 0, len = callbacks.length; i < len; ++i) {\n      callbacks[i].apply(this, args);\n    }\n  }\n\n  return this;\n};\n\n// alias used for reserved events (protected method)\nEmitter.prototype.emitReserved = Emitter.prototype.emit;\n\n/**\n * Return array of callbacks for `event`.\n *\n * @param {String} event\n * @return {Array}\n * @api public\n */\n\nEmitter.prototype.listeners = function(event){\n  this._callbacks = this._callbacks || {};\n  return this._callbacks['$' + event] || [];\n};\n\n/**\n * Check if this emitter has `event` handlers.\n *\n * @param {String} event\n * @return {Boolean}\n * @api public\n */\n\nEmitter.prototype.hasListeners = function(event){\n  return !! this.listeners(event).length;\n};\n", "export const globalThisShim = (() => {\n    if (typeof self !== \"undefined\") {\n        return self;\n    }\n    else if (typeof window !== \"undefined\") {\n        return window;\n    }\n    else {\n        return Function(\"return this\")();\n    }\n})();\n", "import { globalThisShim as globalThis } from \"./globalThis.js\";\nexport function pick(obj, ...attr) {\n    return attr.reduce((acc, k) => {\n        if (obj.hasOwnProperty(k)) {\n            acc[k] = obj[k];\n        }\n        return acc;\n    }, {});\n}\n// Keep a reference to the real timeout functions so they can be used when overridden\nconst NATIVE_SET_TIMEOUT = globalThis.setTimeout;\nconst NATIVE_CLEAR_TIMEOUT = globalThis.clearTimeout;\nexport function installTimerFunctions(obj, opts) {\n    if (opts.useNativeTimers) {\n        obj.setTimeoutFn = NATIVE_SET_TIMEOUT.bind(globalThis);\n        obj.clearTimeoutFn = NATIVE_CLEAR_TIMEOUT.bind(globalThis);\n    }\n    else {\n        obj.setTimeoutFn = globalThis.setTimeout.bind(globalThis);\n        obj.clearTimeoutFn = globalThis.clearTimeout.bind(globalThis);\n    }\n}\n// base64 encoded buffers are about 33% bigger (https://en.wikipedia.org/wiki/Base64)\nconst BASE64_OVERHEAD = 1.33;\n// we could also have used `new Blob([obj]).size`, but it isn't supported in IE9\nexport function byteLength(obj) {\n    if (typeof obj === \"string\") {\n        return utf8Length(obj);\n    }\n    // arraybuffer or blob\n    return Math.ceil((obj.byteLength || obj.size) * BASE64_OVERHEAD);\n}\nfunction utf8Length(str) {\n    let c = 0, length = 0;\n    for (let i = 0, l = str.length; i < l; i++) {\n        c = str.charCodeAt(i);\n        if (c < 0x80) {\n            length += 1;\n        }\n        else if (c < 0x800) {\n            length += 2;\n        }\n        else if (c < 0xd800 || c >= 0xe000) {\n            length += 3;\n        }\n        else {\n            i++;\n            length += 4;\n        }\n    }\n    return length;\n}\n", "// imported from https://github.com/galkn/querystring\n/**\n * Compiles a querystring\n * Returns string representation of the object\n *\n * @param {Object}\n * @api private\n */\nexport function encode(obj) {\n    let str = '';\n    for (let i in obj) {\n        if (obj.hasOwnProperty(i)) {\n            if (str.length)\n                str += '&';\n            str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);\n        }\n    }\n    return str;\n}\n/**\n * Parses a simple querystring into an object\n *\n * @param {String} qs\n * @api private\n */\nexport function decode(qs) {\n    let qry = {};\n    let pairs = qs.split('&');\n    for (let i = 0, l = pairs.length; i < l; i++) {\n        let pair = pairs[i].split('=');\n        qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);\n    }\n    return qry;\n}\n", "import { decodePacket } from \"engine.io-parser\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions } from \"./util.js\";\nimport { encode } from \"./contrib/parseqs.js\";\nexport class TransportError extends Error {\n    constructor(reason, description, context) {\n        super(reason);\n        this.description = description;\n        this.context = context;\n        this.type = \"TransportError\";\n    }\n}\nexport class Transport extends Emitter {\n    /**\n     * Transport abstract constructor.\n     *\n     * @param {Object} opts - options\n     * @protected\n     */\n    constructor(opts) {\n        super();\n        this.writable = false;\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.query = opts.query;\n        this.socket = opts.socket;\n    }\n    /**\n     * Emits an error.\n     *\n     * @param {String} reason\n     * @param description\n     * @param context - the error context\n     * @return {Transport} for chaining\n     * @protected\n     */\n    onError(reason, description, context) {\n        super.emitReserved(\"error\", new TransportError(reason, description, context));\n        return this;\n    }\n    /**\n     * Opens the transport.\n     */\n    open() {\n        this.readyState = \"opening\";\n        this.doOpen();\n        return this;\n    }\n    /**\n     * Closes the transport.\n     */\n    close() {\n        if (this.readyState === \"opening\" || this.readyState === \"open\") {\n            this.doClose();\n            this.onClose();\n        }\n        return this;\n    }\n    /**\n     * Sends multiple packets.\n     *\n     * @param {Array} packets\n     */\n    send(packets) {\n        if (this.readyState === \"open\") {\n            this.write(packets);\n        }\n        else {\n            // this might happen if the transport was silently closed in the beforeunload event handler\n        }\n    }\n    /**\n     * Called upon open\n     *\n     * @protected\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        this.writable = true;\n        super.emitReserved(\"open\");\n    }\n    /**\n     * Called with data.\n     *\n     * @param {String} data\n     * @protected\n     */\n    onData(data) {\n        const packet = decodePacket(data, this.socket.binaryType);\n        this.onPacket(packet);\n    }\n    /**\n     * Called with a decoded packet.\n     *\n     * @protected\n     */\n    onPacket(packet) {\n        super.emitReserved(\"packet\", packet);\n    }\n    /**\n     * Called upon close.\n     *\n     * @protected\n     */\n    onClose(details) {\n        this.readyState = \"closed\";\n        super.emitReserved(\"close\", details);\n    }\n    /**\n     * Pauses the transport, in order not to lose packets during an upgrade.\n     *\n     * @param onPause\n     */\n    pause(onPause) { }\n    createUri(schema, query = {}) {\n        return (schema +\n            \"://\" +\n            this._hostname() +\n            this._port() +\n            this.opts.path +\n            this._query(query));\n    }\n    _hostname() {\n        const hostname = this.opts.hostname;\n        return hostname.indexOf(\":\") === -1 ? hostname : \"[\" + hostname + \"]\";\n    }\n    _port() {\n        if (this.opts.port &&\n            ((this.opts.secure && Number(this.opts.port !== 443)) ||\n                (!this.opts.secure && Number(this.opts.port) !== 80))) {\n            return \":\" + this.opts.port;\n        }\n        else {\n            return \"\";\n        }\n    }\n    _query(query) {\n        const encodedQuery = encode(query);\n        return encodedQuery.length ? \"?\" + encodedQuery : \"\";\n    }\n}\n", "// imported from https://github.com/unshiftio/yeast\n'use strict';\nconst alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split(''), length = 64, map = {};\nlet seed = 0, i = 0, prev;\n/**\n * Return a string representing the specified number.\n *\n * @param {Number} num The number to convert.\n * @returns {String} The string representation of the number.\n * @api public\n */\nexport function encode(num) {\n    let encoded = '';\n    do {\n        encoded = alphabet[num % length] + encoded;\n        num = Math.floor(num / length);\n    } while (num > 0);\n    return encoded;\n}\n/**\n * Return the integer value specified by the given string.\n *\n * @param {String} str The string to convert.\n * @returns {Number} The integer value represented by the string.\n * @api public\n */\nexport function decode(str) {\n    let decoded = 0;\n    for (i = 0; i < str.length; i++) {\n        decoded = decoded * length + map[str.charAt(i)];\n    }\n    return decoded;\n}\n/**\n * Yeast: A tiny growing id generator.\n *\n * @returns {String} A unique id.\n * @api public\n */\nexport function yeast() {\n    const now = encode(+new Date());\n    if (now !== prev)\n        return seed = 0, prev = now;\n    return now + '.' + encode(seed++);\n}\n//\n// Map each character to its index.\n//\nfor (; i < length; i++)\n    map[alphabet[i]] = i;\n", "// imported from https://github.com/component/has-cors\nlet value = false;\ntry {\n    value = typeof XMLHttpRequest !== 'undefined' &&\n        'withCredentials' in new XMLHttpRequest();\n}\ncatch (err) {\n    // if XMLHttp support is disabled in IE then it will throw\n    // when trying to create\n}\nexport const hasCORS = value;\n", "// browser shim for xmlhttprequest module\nimport { hasCORS } from \"../contrib/has-cors.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nexport function XHR(opts) {\n    const xdomain = opts.xdomain;\n    // XMLHttpRequest can be disabled on IE\n    try {\n        if (\"undefined\" !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {\n            return new XMLHttpRequest();\n        }\n    }\n    catch (e) { }\n    if (!xdomain) {\n        try {\n            return new globalThis[[\"Active\"].concat(\"Object\").join(\"X\")](\"Microsoft.XMLHTTP\");\n        }\n        catch (e) { }\n    }\n}\nexport function createCookieJar() { }\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { encodePayload, decodePayload } from \"engine.io-parser\";\nimport { createCookieJar, XHR as XMLHttpRequest, } from \"./xmlhttprequest.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions, pick } from \"../util.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nfunction empty() { }\nconst hasXHR2 = (function () {\n    const xhr = new XMLHttpRequest({\n        xdomain: false,\n    });\n    return null != xhr.responseType;\n})();\nexport class Polling extends Transport {\n    /**\n     * XHR Polling constructor.\n     *\n     * @param {Object} opts\n     * @package\n     */\n    constructor(opts) {\n        super(opts);\n        this.polling = false;\n        if (typeof location !== \"undefined\") {\n            const isSSL = \"https:\" === location.protocol;\n            let port = location.port;\n            // some user agents have empty `location.port`\n            if (!port) {\n                port = isSSL ? \"443\" : \"80\";\n            }\n            this.xd =\n                (typeof location !== \"undefined\" &&\n                    opts.hostname !== location.hostname) ||\n                    port !== opts.port;\n        }\n        /**\n         * XHR supports binary\n         */\n        const forceBase64 = opts && opts.forceBase64;\n        this.supportsBinary = hasXHR2 && !forceBase64;\n        if (this.opts.withCredentials) {\n            this.cookieJar = createCookieJar();\n        }\n    }\n    get name() {\n        return \"polling\";\n    }\n    /**\n     * Opens the socket (triggers polling). We write a PING message to determine\n     * when the transport is open.\n     *\n     * @protected\n     */\n    doOpen() {\n        this.poll();\n    }\n    /**\n     * Pauses polling.\n     *\n     * @param {Function} onPause - callback upon buffers are flushed and transport is paused\n     * @package\n     */\n    pause(onPause) {\n        this.readyState = \"pausing\";\n        const pause = () => {\n            this.readyState = \"paused\";\n            onPause();\n        };\n        if (this.polling || !this.writable) {\n            let total = 0;\n            if (this.polling) {\n                total++;\n                this.once(\"pollComplete\", function () {\n                    --total || pause();\n                });\n            }\n            if (!this.writable) {\n                total++;\n                this.once(\"drain\", function () {\n                    --total || pause();\n                });\n            }\n        }\n        else {\n            pause();\n        }\n    }\n    /**\n     * Starts polling cycle.\n     *\n     * @private\n     */\n    poll() {\n        this.polling = true;\n        this.doPoll();\n        this.emitReserved(\"poll\");\n    }\n    /**\n     * Overloads onData to detect payloads.\n     *\n     * @protected\n     */\n    onData(data) {\n        const callback = (packet) => {\n            // if its the first message we consider the transport open\n            if (\"opening\" === this.readyState && packet.type === \"open\") {\n                this.onOpen();\n            }\n            // if its a close packet, we close the ongoing requests\n            if (\"close\" === packet.type) {\n                this.onClose({ description: \"transport closed by the server\" });\n                return false;\n            }\n            // otherwise bypass onData and handle the message\n            this.onPacket(packet);\n        };\n        // decode payload\n        decodePayload(data, this.socket.binaryType).forEach(callback);\n        // if an event did not trigger closing\n        if (\"closed\" !== this.readyState) {\n            // if we got data we're not polling\n            this.polling = false;\n            this.emitReserved(\"pollComplete\");\n            if (\"open\" === this.readyState) {\n                this.poll();\n            }\n            else {\n            }\n        }\n    }\n    /**\n     * For polling, send a close packet.\n     *\n     * @protected\n     */\n    doClose() {\n        const close = () => {\n            this.write([{ type: \"close\" }]);\n        };\n        if (\"open\" === this.readyState) {\n            close();\n        }\n        else {\n            // in case we're trying to close while\n            // handshaking is in progress (GH-164)\n            this.once(\"open\", close);\n        }\n    }\n    /**\n     * Writes a packets payload.\n     *\n     * @param {Array} packets - data packets\n     * @protected\n     */\n    write(packets) {\n        this.writable = false;\n        encodePayload(packets, (data) => {\n            this.doWrite(data, () => {\n                this.writable = true;\n                this.emitReserved(\"drain\");\n            });\n        });\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"https\" : \"http\";\n        const query = this.query || {};\n        // cache busting is forced\n        if (false !== this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        if (!this.supportsBinary && !query.sid) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Creates a request.\n     *\n     * @param {String} method\n     * @private\n     */\n    request(opts = {}) {\n        Object.assign(opts, { xd: this.xd, cookieJar: this.cookieJar }, this.opts);\n        return new Request(this.uri(), opts);\n    }\n    /**\n     * Sends data.\n     *\n     * @param {String} data to send.\n     * @param {Function} called upon flush.\n     * @private\n     */\n    doWrite(data, fn) {\n        const req = this.request({\n            method: \"POST\",\n            data: data,\n        });\n        req.on(\"success\", fn);\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr post error\", xhrStatus, context);\n        });\n    }\n    /**\n     * Starts a poll cycle.\n     *\n     * @private\n     */\n    doPoll() {\n        const req = this.request();\n        req.on(\"data\", this.onData.bind(this));\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr poll error\", xhrStatus, context);\n        });\n        this.pollXhr = req;\n    }\n}\nexport class Request extends Emitter {\n    /**\n     * Request constructor\n     *\n     * @param {Object} options\n     * @package\n     */\n    constructor(uri, opts) {\n        super();\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.method = opts.method || \"GET\";\n        this.uri = uri;\n        this.data = undefined !== opts.data ? opts.data : null;\n        this.create();\n    }\n    /**\n     * Creates the XHR object and sends the request.\n     *\n     * @private\n     */\n    create() {\n        var _a;\n        const opts = pick(this.opts, \"agent\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"autoUnref\");\n        opts.xdomain = !!this.opts.xd;\n        const xhr = (this.xhr = new XMLHttpRequest(opts));\n        try {\n            xhr.open(this.method, this.uri, true);\n            try {\n                if (this.opts.extraHeaders) {\n                    xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);\n                    for (let i in this.opts.extraHeaders) {\n                        if (this.opts.extraHeaders.hasOwnProperty(i)) {\n                            xhr.setRequestHeader(i, this.opts.extraHeaders[i]);\n                        }\n                    }\n                }\n            }\n            catch (e) { }\n            if (\"POST\" === this.method) {\n                try {\n                    xhr.setRequestHeader(\"Content-type\", \"text/plain;charset=UTF-8\");\n                }\n                catch (e) { }\n            }\n            try {\n                xhr.setRequestHeader(\"Accept\", \"*/*\");\n            }\n            catch (e) { }\n            (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.addCookies(xhr);\n            // ie6 check\n            if (\"withCredentials\" in xhr) {\n                xhr.withCredentials = this.opts.withCredentials;\n            }\n            if (this.opts.requestTimeout) {\n                xhr.timeout = this.opts.requestTimeout;\n            }\n            xhr.onreadystatechange = () => {\n                var _a;\n                if (xhr.readyState === 3) {\n                    (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.parseCookies(xhr);\n                }\n                if (4 !== xhr.readyState)\n                    return;\n                if (200 === xhr.status || 1223 === xhr.status) {\n                    this.onLoad();\n                }\n                else {\n                    // make sure the `error` event handler that's user-set\n                    // does not throw in the same tick and gets caught here\n                    this.setTimeoutFn(() => {\n                        this.onError(typeof xhr.status === \"number\" ? xhr.status : 0);\n                    }, 0);\n                }\n            };\n            xhr.send(this.data);\n        }\n        catch (e) {\n            // Need to defer since .create() is called directly from the constructor\n            // and thus the 'error' event can only be only bound *after* this exception\n            // occurs.  Therefore, also, we cannot throw here at all.\n            this.setTimeoutFn(() => {\n                this.onError(e);\n            }, 0);\n            return;\n        }\n        if (typeof document !== \"undefined\") {\n            this.index = Request.requestsCount++;\n            Request.requests[this.index] = this;\n        }\n    }\n    /**\n     * Called upon error.\n     *\n     * @private\n     */\n    onError(err) {\n        this.emitReserved(\"error\", err, this.xhr);\n        this.cleanup(true);\n    }\n    /**\n     * Cleans up house.\n     *\n     * @private\n     */\n    cleanup(fromError) {\n        if (\"undefined\" === typeof this.xhr || null === this.xhr) {\n            return;\n        }\n        this.xhr.onreadystatechange = empty;\n        if (fromError) {\n            try {\n                this.xhr.abort();\n            }\n            catch (e) { }\n        }\n        if (typeof document !== \"undefined\") {\n            delete Request.requests[this.index];\n        }\n        this.xhr = null;\n    }\n    /**\n     * Called upon load.\n     *\n     * @private\n     */\n    onLoad() {\n        const data = this.xhr.responseText;\n        if (data !== null) {\n            this.emitReserved(\"data\", data);\n            this.emitReserved(\"success\");\n            this.cleanup();\n        }\n    }\n    /**\n     * Aborts the request.\n     *\n     * @package\n     */\n    abort() {\n        this.cleanup();\n    }\n}\nRequest.requestsCount = 0;\nRequest.requests = {};\n/**\n * Aborts pending requests when unloading the window. This is needed to prevent\n * memory leaks (e.g. when using IE) and to ensure that no spurious error is\n * emitted.\n */\nif (typeof document !== \"undefined\") {\n    // @ts-ignore\n    if (typeof attachEvent === \"function\") {\n        // @ts-ignore\n        attachEvent(\"onunload\", unloadHandler);\n    }\n    else if (typeof addEventListener === \"function\") {\n        const terminationEvent = \"onpagehide\" in globalThis ? \"pagehide\" : \"unload\";\n        addEventListener(terminationEvent, unloadHandler, false);\n    }\n}\nfunction unloadHandler() {\n    for (let i in Request.requests) {\n        if (Request.requests.hasOwnProperty(i)) {\n            Request.requests[i].abort();\n        }\n    }\n}\n", "import { globalThisShim as globalThis } from \"../globalThis.js\";\nexport const nextTick = (() => {\n    const isPromiseAvailable = typeof Promise === \"function\" && typeof Promise.resolve === \"function\";\n    if (isPromiseAvailable) {\n        return (cb) => Promise.resolve().then(cb);\n    }\n    else {\n        return (cb, setTimeoutFn) => setTimeoutFn(cb, 0);\n    }\n})();\nexport const WebSocket = globalThis.WebSocket || globalThis.MozWebSocket;\nexport const usingBrowserWebSocket = true;\nexport const defaultBinaryType = \"arraybuffer\";\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { pick } from \"../util.js\";\nimport { nextTick, usingBrowserWebSocket, WebSocket, } from \"./websocket-constructor.js\";\nimport { encodePacket } from \"engine.io-parser\";\n// detect ReactNative environment\nconst isReactNative = typeof navigator !== \"undefined\" &&\n    typeof navigator.product === \"string\" &&\n    navigator.product.toLowerCase() === \"reactnative\";\nexport class WS extends Transport {\n    /**\n     * WebSocket transport constructor.\n     *\n     * @param {Object} opts - connection options\n     * @protected\n     */\n    constructor(opts) {\n        super(opts);\n        this.supportsBinary = !opts.forceBase64;\n    }\n    get name() {\n        return \"websocket\";\n    }\n    doOpen() {\n        if (!this.check()) {\n            // let probe timeout\n            return;\n        }\n        const uri = this.uri();\n        const protocols = this.opts.protocols;\n        // React Native only supports the 'headers' option, and will print a warning if anything else is passed\n        const opts = isReactNative\n            ? {}\n            : pick(this.opts, \"agent\", \"perMessageDeflate\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"localAddress\", \"protocolVersion\", \"origin\", \"maxPayload\", \"family\", \"checkServerIdentity\");\n        if (this.opts.extraHeaders) {\n            opts.headers = this.opts.extraHeaders;\n        }\n        try {\n            this.ws =\n                usingBrowserWebSocket && !isReactNative\n                    ? protocols\n                        ? new WebSocket(uri, protocols)\n                        : new WebSocket(uri)\n                    : new WebSocket(uri, protocols, opts);\n        }\n        catch (err) {\n            return this.emitReserved(\"error\", err);\n        }\n        this.ws.binaryType = this.socket.binaryType;\n        this.addEventListeners();\n    }\n    /**\n     * Adds event listeners to the socket\n     *\n     * @private\n     */\n    addEventListeners() {\n        this.ws.onopen = () => {\n            if (this.opts.autoUnref) {\n                this.ws._socket.unref();\n            }\n            this.onOpen();\n        };\n        this.ws.onclose = (closeEvent) => this.onClose({\n            description: \"websocket connection closed\",\n            context: closeEvent,\n        });\n        this.ws.onmessage = (ev) => this.onData(ev.data);\n        this.ws.onerror = (e) => this.onError(\"websocket error\", e);\n    }\n    write(packets) {\n        this.writable = false;\n        // encodePacket efficient as it uses WS framing\n        // no need for encodePayload\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            encodePacket(packet, this.supportsBinary, (data) => {\n                // always create a new object (GH-437)\n                const opts = {};\n                if (!usingBrowserWebSocket) {\n                    if (packet.options) {\n                        opts.compress = packet.options.compress;\n                    }\n                    if (this.opts.perMessageDeflate) {\n                        const len = \n                        // @ts-ignore\n                        \"string\" === typeof data ? Buffer.byteLength(data) : data.length;\n                        if (len < this.opts.perMessageDeflate.threshold) {\n                            opts.compress = false;\n                        }\n                    }\n                }\n                // Sometimes the websocket has already been closed but the browser didn't\n                // have a chance of informing us about it yet, in that case send will\n                // throw an error\n                try {\n                    if (usingBrowserWebSocket) {\n                        // TypeError is thrown when passing the second argument on Safari\n                        this.ws.send(data);\n                    }\n                    else {\n                        this.ws.send(data, opts);\n                    }\n                }\n                catch (e) {\n                }\n                if (lastPacket) {\n                    // fake drain\n                    // defer to next tick to allow Socket to clear writeBuffer\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        if (typeof this.ws !== \"undefined\") {\n            this.ws.close();\n            this.ws = null;\n        }\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"wss\" : \"ws\";\n        const query = this.query || {};\n        // append timestamp to URI\n        if (this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        // communicate binary support capabilities\n        if (!this.supportsBinary) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Feature detection for WebSocket.\n     *\n     * @return {Boolean} whether this transport is available.\n     * @private\n     */\n    check() {\n        return !!WebSocket;\n    }\n}\n", "import { Transport } from \"../transport.js\";\nimport { nextTick } from \"./websocket-constructor.js\";\nimport { createPacketDecoderStream, createPacketEncoderStream, } from \"engine.io-parser\";\nexport class WT extends Transport {\n    get name() {\n        return \"webtransport\";\n    }\n    doOpen() {\n        // @ts-ignore\n        if (typeof WebTransport !== \"function\") {\n            return;\n        }\n        // @ts-ignore\n        this.transport = new WebTransport(this.createUri(\"https\"), this.opts.transportOptions[this.name]);\n        this.transport.closed\n            .then(() => {\n            this.onClose();\n        })\n            .catch((err) => {\n            this.onError(\"webtransport error\", err);\n        });\n        // note: we could have used async/await, but that would require some additional polyfills\n        this.transport.ready.then(() => {\n            this.transport.createBidirectionalStream().then((stream) => {\n                const decoderStream = createPacketDecoderStream(Number.MAX_SAFE_INTEGER, this.socket.binaryType);\n                const reader = stream.readable.pipeThrough(decoderStream).getReader();\n                const encoderStream = createPacketEncoderStream();\n                encoderStream.readable.pipeTo(stream.writable);\n                this.writer = encoderStream.writable.getWriter();\n                const read = () => {\n                    reader\n                        .read()\n                        .then(({ done, value }) => {\n                        if (done) {\n                            return;\n                        }\n                        this.onPacket(value);\n                        read();\n                    })\n                        .catch((err) => {\n                    });\n                };\n                read();\n                const packet = { type: \"open\" };\n                if (this.query.sid) {\n                    packet.data = `{\"sid\":\"${this.query.sid}\"}`;\n                }\n                this.writer.write(packet).then(() => this.onOpen());\n            });\n        });\n    }\n    write(packets) {\n        this.writable = false;\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            this.writer.write(packet).then(() => {\n                if (lastPacket) {\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        var _a;\n        (_a = this.transport) === null || _a === void 0 ? void 0 : _a.close();\n    }\n}\n", "import { Polling } from \"./polling.js\";\nimport { WS } from \"./websocket.js\";\nimport { WT } from \"./webtransport.js\";\nexport const transports = {\n    websocket: WS,\n    webtransport: WT,\n    polling: Polling,\n};\n", "// imported from https://github.com/galkn/parseuri\n/**\n * Parses a URI\n *\n * Note: we could also have used the built-in URL object, but it isn't supported on all platforms.\n *\n * See:\n * - https://developer.mozilla.org/en-US/docs/Web/API/URL\n * - https://caniuse.com/url\n * - https://www.rfc-editor.org/rfc/rfc3986#appendix-B\n *\n * History of the parse() method:\n * - first commit: https://github.com/socketio/socket.io-client/commit/4ee1d5d94b3906a9c052b459f1a818b15f38f91c\n * - export into its own module: https://github.com/socketio/engine.io-client/commit/de2c561e4564efeb78f1bdb1ba39ef81b2822cb3\n * - reimport: https://github.com/socketio/engine.io-client/commit/df32277c3f6d622eec5ed09f493cae3f3391d242\n *\n * @author Steven Levithan <stevenlevithan.com> (MIT license)\n * @api private\n */\nconst re = /^(?:(?![^:@\\/?#]+:[^:@\\/]*@)(http|https|ws|wss):\\/\\/)?((?:(([^:@\\/?#]*)(?::([^:@\\/?#]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\\/?#]*)(?::(\\d*))?)(((\\/(?:[^?#](?![^?#\\/]*\\.[^?#\\/.]+(?:[?#]|$)))*\\/?)?([^?#\\/]*))(?:\\?([^#]*))?(?:#(.*))?)/;\nconst parts = [\n    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'\n];\nexport function parse(str) {\n    if (str.length > 2000) {\n        throw \"URI too long\";\n    }\n    const src = str, b = str.indexOf('['), e = str.indexOf(']');\n    if (b != -1 && e != -1) {\n        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);\n    }\n    let m = re.exec(str || ''), uri = {}, i = 14;\n    while (i--) {\n        uri[parts[i]] = m[i] || '';\n    }\n    if (b != -1 && e != -1) {\n        uri.source = src;\n        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');\n        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');\n        uri.ipv6uri = true;\n    }\n    uri.pathNames = pathNames(uri, uri['path']);\n    uri.queryKey = queryKey(uri, uri['query']);\n    return uri;\n}\nfunction pathNames(obj, path) {\n    const regx = /\\/{2,9}/g, names = path.replace(regx, \"/\").split(\"/\");\n    if (path.slice(0, 1) == '/' || path.length === 0) {\n        names.splice(0, 1);\n    }\n    if (path.slice(-1) == '/') {\n        names.splice(names.length - 1, 1);\n    }\n    return names;\n}\nfunction queryKey(uri, query) {\n    const data = {};\n    query.replace(/(?:^|&)([^&=]*)=?([^&]*)/g, function ($0, $1, $2) {\n        if ($1) {\n            data[$1] = $2;\n        }\n    });\n    return data;\n}\n", "import { transports } from \"./transports/index.js\";\nimport { installTimerFunctions, byteLength } from \"./util.js\";\nimport { decode } from \"./contrib/parseqs.js\";\nimport { parse } from \"./contrib/parseuri.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { protocol } from \"engine.io-parser\";\nimport { defaultBinaryType } from \"./transports/websocket-constructor.js\";\nexport class Socket extends Emitter {\n    /**\n     * Socket constructor.\n     *\n     * @param {String|Object} uri - uri or options\n     * @param {Object} opts - options\n     */\n    constructor(uri, opts = {}) {\n        super();\n        this.binaryType = defaultBinaryType;\n        this.writeBuffer = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = null;\n        }\n        if (uri) {\n            uri = parse(uri);\n            opts.hostname = uri.host;\n            opts.secure = uri.protocol === \"https\" || uri.protocol === \"wss\";\n            opts.port = uri.port;\n            if (uri.query)\n                opts.query = uri.query;\n        }\n        else if (opts.host) {\n            opts.hostname = parse(opts.host).host;\n        }\n        installTimerFunctions(this, opts);\n        this.secure =\n            null != opts.secure\n                ? opts.secure\n                : typeof location !== \"undefined\" && \"https:\" === location.protocol;\n        if (opts.hostname && !opts.port) {\n            // if no port is specified manually, use the protocol default\n            opts.port = this.secure ? \"443\" : \"80\";\n        }\n        this.hostname =\n            opts.hostname ||\n                (typeof location !== \"undefined\" ? location.hostname : \"localhost\");\n        this.port =\n            opts.port ||\n                (typeof location !== \"undefined\" && location.port\n                    ? location.port\n                    : this.secure\n                        ? \"443\"\n                        : \"80\");\n        this.transports = opts.transports || [\n            \"polling\",\n            \"websocket\",\n            \"webtransport\",\n        ];\n        this.writeBuffer = [];\n        this.prevBufferLen = 0;\n        this.opts = Object.assign({\n            path: \"/engine.io\",\n            agent: false,\n            withCredentials: false,\n            upgrade: true,\n            timestampParam: \"t\",\n            rememberUpgrade: false,\n            addTrailingSlash: true,\n            rejectUnauthorized: true,\n            perMessageDeflate: {\n                threshold: 1024,\n            },\n            transportOptions: {},\n            closeOnBeforeunload: false,\n        }, opts);\n        this.opts.path =\n            this.opts.path.replace(/\\/$/, \"\") +\n                (this.opts.addTrailingSlash ? \"/\" : \"\");\n        if (typeof this.opts.query === \"string\") {\n            this.opts.query = decode(this.opts.query);\n        }\n        // set on handshake\n        this.id = null;\n        this.upgrades = null;\n        this.pingInterval = null;\n        this.pingTimeout = null;\n        // set on heartbeat\n        this.pingTimeoutTimer = null;\n        if (typeof addEventListener === \"function\") {\n            if (this.opts.closeOnBeforeunload) {\n                // Firefox closes the connection when the \"beforeunload\" event is emitted but not Chrome. This event listener\n                // ensures every browser behaves the same (no \"disconnect\" event at the Socket.IO level when the page is\n                // closed/reloaded)\n                this.beforeunloadEventListener = () => {\n                    if (this.transport) {\n                        // silently close the transport\n                        this.transport.removeAllListeners();\n                        this.transport.close();\n                    }\n                };\n                addEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n            }\n            if (this.hostname !== \"localhost\") {\n                this.offlineEventListener = () => {\n                    this.onClose(\"transport close\", {\n                        description: \"network connection lost\",\n                    });\n                };\n                addEventListener(\"offline\", this.offlineEventListener, false);\n            }\n        }\n        this.open();\n    }\n    /**\n     * Creates transport of the given type.\n     *\n     * @param {String} name - transport name\n     * @return {Transport}\n     * @private\n     */\n    createTransport(name) {\n        const query = Object.assign({}, this.opts.query);\n        // append engine.io protocol identifier\n        query.EIO = protocol;\n        // transport name\n        query.transport = name;\n        // session id if we already have one\n        if (this.id)\n            query.sid = this.id;\n        const opts = Object.assign({}, this.opts, {\n            query,\n            socket: this,\n            hostname: this.hostname,\n            secure: this.secure,\n            port: this.port,\n        }, this.opts.transportOptions[name]);\n        return new transports[name](opts);\n    }\n    /**\n     * Initializes transport to use and starts probe.\n     *\n     * @private\n     */\n    open() {\n        let transport;\n        if (this.opts.rememberUpgrade &&\n            Socket.priorWebsocketSuccess &&\n            this.transports.indexOf(\"websocket\") !== -1) {\n            transport = \"websocket\";\n        }\n        else if (0 === this.transports.length) {\n            // Emit error on next tick so it can be listened to\n            this.setTimeoutFn(() => {\n                this.emitReserved(\"error\", \"No transports available\");\n            }, 0);\n            return;\n        }\n        else {\n            transport = this.transports[0];\n        }\n        this.readyState = \"opening\";\n        // Retry with the next transport if the transport is disabled (jsonp: false)\n        try {\n            transport = this.createTransport(transport);\n        }\n        catch (e) {\n            this.transports.shift();\n            this.open();\n            return;\n        }\n        transport.open();\n        this.setTransport(transport);\n    }\n    /**\n     * Sets the current transport. Disables the existing one (if any).\n     *\n     * @private\n     */\n    setTransport(transport) {\n        if (this.transport) {\n            this.transport.removeAllListeners();\n        }\n        // set up transport\n        this.transport = transport;\n        // set up transport listeners\n        transport\n            .on(\"drain\", this.onDrain.bind(this))\n            .on(\"packet\", this.onPacket.bind(this))\n            .on(\"error\", this.onError.bind(this))\n            .on(\"close\", (reason) => this.onClose(\"transport close\", reason));\n    }\n    /**\n     * Probes a transport.\n     *\n     * @param {String} name - transport name\n     * @private\n     */\n    probe(name) {\n        let transport = this.createTransport(name);\n        let failed = false;\n        Socket.priorWebsocketSuccess = false;\n        const onTransportOpen = () => {\n            if (failed)\n                return;\n            transport.send([{ type: \"ping\", data: \"probe\" }]);\n            transport.once(\"packet\", (msg) => {\n                if (failed)\n                    return;\n                if (\"pong\" === msg.type && \"probe\" === msg.data) {\n                    this.upgrading = true;\n                    this.emitReserved(\"upgrading\", transport);\n                    if (!transport)\n                        return;\n                    Socket.priorWebsocketSuccess = \"websocket\" === transport.name;\n                    this.transport.pause(() => {\n                        if (failed)\n                            return;\n                        if (\"closed\" === this.readyState)\n                            return;\n                        cleanup();\n                        this.setTransport(transport);\n                        transport.send([{ type: \"upgrade\" }]);\n                        this.emitReserved(\"upgrade\", transport);\n                        transport = null;\n                        this.upgrading = false;\n                        this.flush();\n                    });\n                }\n                else {\n                    const err = new Error(\"probe error\");\n                    // @ts-ignore\n                    err.transport = transport.name;\n                    this.emitReserved(\"upgradeError\", err);\n                }\n            });\n        };\n        function freezeTransport() {\n            if (failed)\n                return;\n            // Any callback called by transport should be ignored since now\n            failed = true;\n            cleanup();\n            transport.close();\n            transport = null;\n        }\n        // Handle any error that happens while probing\n        const onerror = (err) => {\n            const error = new Error(\"probe error: \" + err);\n            // @ts-ignore\n            error.transport = transport.name;\n            freezeTransport();\n            this.emitReserved(\"upgradeError\", error);\n        };\n        function onTransportClose() {\n            onerror(\"transport closed\");\n        }\n        // When the socket is closed while we're probing\n        function onclose() {\n            onerror(\"socket closed\");\n        }\n        // When the socket is upgraded while we're probing\n        function onupgrade(to) {\n            if (transport && to.name !== transport.name) {\n                freezeTransport();\n            }\n        }\n        // Remove all listeners on the transport and on self\n        const cleanup = () => {\n            transport.removeListener(\"open\", onTransportOpen);\n            transport.removeListener(\"error\", onerror);\n            transport.removeListener(\"close\", onTransportClose);\n            this.off(\"close\", onclose);\n            this.off(\"upgrading\", onupgrade);\n        };\n        transport.once(\"open\", onTransportOpen);\n        transport.once(\"error\", onerror);\n        transport.once(\"close\", onTransportClose);\n        this.once(\"close\", onclose);\n        this.once(\"upgrading\", onupgrade);\n        if (this.upgrades.indexOf(\"webtransport\") !== -1 &&\n            name !== \"webtransport\") {\n            // favor WebTransport\n            this.setTimeoutFn(() => {\n                if (!failed) {\n                    transport.open();\n                }\n            }, 200);\n        }\n        else {\n            transport.open();\n        }\n    }\n    /**\n     * Called when connection is deemed open.\n     *\n     * @private\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        Socket.priorWebsocketSuccess = \"websocket\" === this.transport.name;\n        this.emitReserved(\"open\");\n        this.flush();\n        // we check for `readyState` in case an `open`\n        // listener already closed the socket\n        if (\"open\" === this.readyState && this.opts.upgrade) {\n            let i = 0;\n            const l = this.upgrades.length;\n            for (; i < l; i++) {\n                this.probe(this.upgrades[i]);\n            }\n        }\n    }\n    /**\n     * Handles a packet.\n     *\n     * @private\n     */\n    onPacket(packet) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            this.emitReserved(\"packet\", packet);\n            // Socket is live - any packet counts\n            this.emitReserved(\"heartbeat\");\n            this.resetPingTimeout();\n            switch (packet.type) {\n                case \"open\":\n                    this.onHandshake(JSON.parse(packet.data));\n                    break;\n                case \"ping\":\n                    this.sendPacket(\"pong\");\n                    this.emitReserved(\"ping\");\n                    this.emitReserved(\"pong\");\n                    break;\n                case \"error\":\n                    const err = new Error(\"server error\");\n                    // @ts-ignore\n                    err.code = packet.data;\n                    this.onError(err);\n                    break;\n                case \"message\":\n                    this.emitReserved(\"data\", packet.data);\n                    this.emitReserved(\"message\", packet.data);\n                    break;\n            }\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon handshake completion.\n     *\n     * @param {Object} data - handshake obj\n     * @private\n     */\n    onHandshake(data) {\n        this.emitReserved(\"handshake\", data);\n        this.id = data.sid;\n        this.transport.query.sid = data.sid;\n        this.upgrades = this.filterUpgrades(data.upgrades);\n        this.pingInterval = data.pingInterval;\n        this.pingTimeout = data.pingTimeout;\n        this.maxPayload = data.maxPayload;\n        this.onOpen();\n        // In case open handler closes socket\n        if (\"closed\" === this.readyState)\n            return;\n        this.resetPingTimeout();\n    }\n    /**\n     * Sets and resets ping timeout timer based on server pings.\n     *\n     * @private\n     */\n    resetPingTimeout() {\n        this.clearTimeoutFn(this.pingTimeoutTimer);\n        this.pingTimeoutTimer = this.setTimeoutFn(() => {\n            this.onClose(\"ping timeout\");\n        }, this.pingInterval + this.pingTimeout);\n        if (this.opts.autoUnref) {\n            this.pingTimeoutTimer.unref();\n        }\n    }\n    /**\n     * Called on `drain` event\n     *\n     * @private\n     */\n    onDrain() {\n        this.writeBuffer.splice(0, this.prevBufferLen);\n        // setting prevBufferLen = 0 is very important\n        // for example, when upgrading, upgrade packet is sent over,\n        // and a nonzero prevBufferLen could cause problems on `drain`\n        this.prevBufferLen = 0;\n        if (0 === this.writeBuffer.length) {\n            this.emitReserved(\"drain\");\n        }\n        else {\n            this.flush();\n        }\n    }\n    /**\n     * Flush write buffers.\n     *\n     * @private\n     */\n    flush() {\n        if (\"closed\" !== this.readyState &&\n            this.transport.writable &&\n            !this.upgrading &&\n            this.writeBuffer.length) {\n            const packets = this.getWritablePackets();\n            this.transport.send(packets);\n            // keep track of current length of writeBuffer\n            // splice writeBuffer and callbackBuffer on `drain`\n            this.prevBufferLen = packets.length;\n            this.emitReserved(\"flush\");\n        }\n    }\n    /**\n     * Ensure the encoded size of the writeBuffer is below the maxPayload value sent by the server (only for HTTP\n     * long-polling)\n     *\n     * @private\n     */\n    getWritablePackets() {\n        const shouldCheckPayloadSize = this.maxPayload &&\n            this.transport.name === \"polling\" &&\n            this.writeBuffer.length > 1;\n        if (!shouldCheckPayloadSize) {\n            return this.writeBuffer;\n        }\n        let payloadSize = 1; // first packet type\n        for (let i = 0; i < this.writeBuffer.length; i++) {\n            const data = this.writeBuffer[i].data;\n            if (data) {\n                payloadSize += byteLength(data);\n            }\n            if (i > 0 && payloadSize > this.maxPayload) {\n                return this.writeBuffer.slice(0, i);\n            }\n            payloadSize += 2; // separator + packet type\n        }\n        return this.writeBuffer;\n    }\n    /**\n     * Sends a message.\n     *\n     * @param {String} msg - message.\n     * @param {Object} options.\n     * @param {Function} callback function.\n     * @return {Socket} for chaining.\n     */\n    write(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    send(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param {String} type: packet type.\n     * @param {String} data.\n     * @param {Object} options.\n     * @param {Function} fn - callback function.\n     * @private\n     */\n    sendPacket(type, data, options, fn) {\n        if (\"function\" === typeof data) {\n            fn = data;\n            data = undefined;\n        }\n        if (\"function\" === typeof options) {\n            fn = options;\n            options = null;\n        }\n        if (\"closing\" === this.readyState || \"closed\" === this.readyState) {\n            return;\n        }\n        options = options || {};\n        options.compress = false !== options.compress;\n        const packet = {\n            type: type,\n            data: data,\n            options: options,\n        };\n        this.emitReserved(\"packetCreate\", packet);\n        this.writeBuffer.push(packet);\n        if (fn)\n            this.once(\"flush\", fn);\n        this.flush();\n    }\n    /**\n     * Closes the connection.\n     */\n    close() {\n        const close = () => {\n            this.onClose(\"forced close\");\n            this.transport.close();\n        };\n        const cleanupAndClose = () => {\n            this.off(\"upgrade\", cleanupAndClose);\n            this.off(\"upgradeError\", cleanupAndClose);\n            close();\n        };\n        const waitForUpgrade = () => {\n            // wait for upgrade to finish since we can't send packets while pausing a transport\n            this.once(\"upgrade\", cleanupAndClose);\n            this.once(\"upgradeError\", cleanupAndClose);\n        };\n        if (\"opening\" === this.readyState || \"open\" === this.readyState) {\n            this.readyState = \"closing\";\n            if (this.writeBuffer.length) {\n                this.once(\"drain\", () => {\n                    if (this.upgrading) {\n                        waitForUpgrade();\n                    }\n                    else {\n                        close();\n                    }\n                });\n            }\n            else if (this.upgrading) {\n                waitForUpgrade();\n            }\n            else {\n                close();\n            }\n        }\n        return this;\n    }\n    /**\n     * Called upon transport error\n     *\n     * @private\n     */\n    onError(err) {\n        Socket.priorWebsocketSuccess = false;\n        this.emitReserved(\"error\", err);\n        this.onClose(\"transport error\", err);\n    }\n    /**\n     * Called upon transport close.\n     *\n     * @private\n     */\n    onClose(reason, description) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            // clear timers\n            this.clearTimeoutFn(this.pingTimeoutTimer);\n            // stop event from firing again for transport\n            this.transport.removeAllListeners(\"close\");\n            // ensure transport won't stay open\n            this.transport.close();\n            // ignore further transport communication\n            this.transport.removeAllListeners();\n            if (typeof removeEventListener === \"function\") {\n                removeEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n                removeEventListener(\"offline\", this.offlineEventListener, false);\n            }\n            // set ready state\n            this.readyState = \"closed\";\n            // clear session id\n            this.id = null;\n            // emit close event\n            this.emitReserved(\"close\", reason, description);\n            // clean buffers after, so users can still\n            // grab the buffers on `close` event\n            this.writeBuffer = [];\n            this.prevBufferLen = 0;\n        }\n    }\n    /**\n     * Filters upgrades, returning only those matching client transports.\n     *\n     * @param {Array} upgrades - server upgrades\n     * @private\n     */\n    filterUpgrades(upgrades) {\n        const filteredUpgrades = [];\n        let i = 0;\n        const j = upgrades.length;\n        for (; i < j; i++) {\n            if (~this.transports.indexOf(upgrades[i]))\n                filteredUpgrades.push(upgrades[i]);\n        }\n        return filteredUpgrades;\n    }\n}\nSocket.protocol = protocol;\n", "import { Socket } from \"./socket.js\";\nexport { Socket };\nexport const protocol = Socket.protocol;\nexport { Transport, TransportError } from \"./transport.js\";\nexport { transports } from \"./transports/index.js\";\nexport { installTimerFunctions } from \"./util.js\";\nexport { parse } from \"./contrib/parseuri.js\";\nexport { nextTick } from \"./transports/websocket-constructor.js\";\n", "import { parse } from \"engine.io-client\";\n/**\n * URL parser.\n *\n * @param uri - url\n * @param path - the request path of the connection\n * @param loc - An object meant to mimic window.location.\n *        Defaults to window.location.\n * @public\n */\nexport function url(uri, path = \"\", loc) {\n    let obj = uri;\n    // default to window.location\n    loc = loc || (typeof location !== \"undefined\" && location);\n    if (null == uri)\n        uri = loc.protocol + \"//\" + loc.host;\n    // relative path support\n    if (typeof uri === \"string\") {\n        if (\"/\" === uri.charAt(0)) {\n            if (\"/\" === uri.charAt(1)) {\n                uri = loc.protocol + uri;\n            }\n            else {\n                uri = loc.host + uri;\n            }\n        }\n        if (!/^(https?|wss?):\\/\\//.test(uri)) {\n            if (\"undefined\" !== typeof loc) {\n                uri = loc.protocol + \"//\" + uri;\n            }\n            else {\n                uri = \"https://\" + uri;\n            }\n        }\n        // parse\n        obj = parse(uri);\n    }\n    // make sure we treat `localhost:80` and `localhost` equally\n    if (!obj.port) {\n        if (/^(http|ws)$/.test(obj.protocol)) {\n            obj.port = \"80\";\n        }\n        else if (/^(http|ws)s$/.test(obj.protocol)) {\n            obj.port = \"443\";\n        }\n    }\n    obj.path = obj.path || \"/\";\n    const ipv6 = obj.host.indexOf(\":\") !== -1;\n    const host = ipv6 ? \"[\" + obj.host + \"]\" : obj.host;\n    // define unique id\n    obj.id = obj.protocol + \"://\" + host + \":\" + obj.port + path;\n    // define href\n    obj.href =\n        obj.protocol +\n            \"://\" +\n            host +\n            (loc && loc.port === obj.port ? \"\" : \":\" + obj.port);\n    return obj;\n}\n", "import { Emitter } from \"@socket.io/component-emitter\";\nimport { deconstructPacket, reconstructPacket } from \"./binary.js\";\nimport { isBinary, hasBinary } from \"./is-binary.js\";\n/**\n * These strings must not be used as event names, as they have a special meaning.\n */\nconst RESERVED_EVENTS = [\n    \"connect\",\n    \"connect_error\",\n    \"disconnect\",\n    \"disconnecting\",\n    \"newListener\",\n    \"removeListener\", // used by the Node.js EventEmitter\n];\n/**\n * Protocol version.\n *\n * @public\n */\nexport const protocol = 5;\nexport var PacketType;\n(function (PacketType) {\n    PacketType[PacketType[\"CONNECT\"] = 0] = \"CONNECT\";\n    PacketType[PacketType[\"DISCONNECT\"] = 1] = \"DISCONNECT\";\n    PacketType[PacketType[\"EVENT\"] = 2] = \"EVENT\";\n    PacketType[PacketType[\"ACK\"] = 3] = \"ACK\";\n    PacketType[PacketType[\"CONNECT_ERROR\"] = 4] = \"CONNECT_ERROR\";\n    PacketType[PacketType[\"BINARY_EVENT\"] = 5] = \"BINARY_EVENT\";\n    PacketType[PacketType[\"BINARY_ACK\"] = 6] = \"BINARY_ACK\";\n})(PacketType || (PacketType = {}));\n/**\n * A socket.io Encoder instance\n */\nexport class Encoder {\n    /**\n     * Encoder constructor\n     *\n     * @param {function} replacer - custom replacer to pass down to JSON.parse\n     */\n    constructor(replacer) {\n        this.replacer = replacer;\n    }\n    /**\n     * Encode a packet as a single string if non-binary, or as a\n     * buffer sequence, depending on packet type.\n     *\n     * @param {Object} obj - packet object\n     */\n    encode(obj) {\n        if (obj.type === PacketType.EVENT || obj.type === PacketType.ACK) {\n            if (hasBinary(obj)) {\n                return this.encodeAsBinary({\n                    type: obj.type === PacketType.EVENT\n                        ? PacketType.BINARY_EVENT\n                        : PacketType.BINARY_ACK,\n                    nsp: obj.nsp,\n                    data: obj.data,\n                    id: obj.id,\n                });\n            }\n        }\n        return [this.encodeAsString(obj)];\n    }\n    /**\n     * Encode packet as string.\n     */\n    encodeAsString(obj) {\n        // first is type\n        let str = \"\" + obj.type;\n        // attachments if we have them\n        if (obj.type === PacketType.BINARY_EVENT ||\n            obj.type === PacketType.BINARY_ACK) {\n            str += obj.attachments + \"-\";\n        }\n        // if we have a namespace other than `/`\n        // we append it followed by a comma `,`\n        if (obj.nsp && \"/\" !== obj.nsp) {\n            str += obj.nsp + \",\";\n        }\n        // immediately followed by the id\n        if (null != obj.id) {\n            str += obj.id;\n        }\n        // json data\n        if (null != obj.data) {\n            str += JSON.stringify(obj.data, this.replacer);\n        }\n        return str;\n    }\n    /**\n     * Encode packet as 'buffer sequence' by removing blobs, and\n     * deconstructing packet into object with placeholders and\n     * a list of buffers.\n     */\n    encodeAsBinary(obj) {\n        const deconstruction = deconstructPacket(obj);\n        const pack = this.encodeAsString(deconstruction.packet);\n        const buffers = deconstruction.buffers;\n        buffers.unshift(pack); // add packet info to beginning of data list\n        return buffers; // write all the buffers\n    }\n}\n// see https://stackoverflow.com/questions/8511281/check-if-a-value-is-an-object-in-javascript\nfunction isObject(value) {\n    return Object.prototype.toString.call(value) === \"[object Object]\";\n}\n/**\n * A socket.io Decoder instance\n *\n * @return {Object} decoder\n */\nexport class Decoder extends Emitter {\n    /**\n     * Decoder constructor\n     *\n     * @param {function} reviver - custom reviver to pass down to JSON.stringify\n     */\n    constructor(reviver) {\n        super();\n        this.reviver = reviver;\n    }\n    /**\n     * Decodes an encoded packet string into packet JSON.\n     *\n     * @param {String} obj - encoded packet\n     */\n    add(obj) {\n        let packet;\n        if (typeof obj === \"string\") {\n            if (this.reconstructor) {\n                throw new Error(\"got plaintext data when reconstructing a packet\");\n            }\n            packet = this.decodeString(obj);\n            const isBinaryEvent = packet.type === PacketType.BINARY_EVENT;\n            if (isBinaryEvent || packet.type === PacketType.BINARY_ACK) {\n                packet.type = isBinaryEvent ? PacketType.EVENT : PacketType.ACK;\n                // binary packet's json\n                this.reconstructor = new BinaryReconstructor(packet);\n                // no attachments, labeled binary but no binary data to follow\n                if (packet.attachments === 0) {\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n            else {\n                // non-binary full packet\n                super.emitReserved(\"decoded\", packet);\n            }\n        }\n        else if (isBinary(obj) || obj.base64) {\n            // raw binary data\n            if (!this.reconstructor) {\n                throw new Error(\"got binary data when not reconstructing a packet\");\n            }\n            else {\n                packet = this.reconstructor.takeBinaryData(obj);\n                if (packet) {\n                    // received final buffer\n                    this.reconstructor = null;\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n        }\n        else {\n            throw new Error(\"Unknown type: \" + obj);\n        }\n    }\n    /**\n     * Decode a packet String (JSON data)\n     *\n     * @param {String} str\n     * @return {Object} packet\n     */\n    decodeString(str) {\n        let i = 0;\n        // look up type\n        const p = {\n            type: Number(str.charAt(0)),\n        };\n        if (PacketType[p.type] === undefined) {\n            throw new Error(\"unknown packet type \" + p.type);\n        }\n        // look up attachments if type binary\n        if (p.type === PacketType.BINARY_EVENT ||\n            p.type === PacketType.BINARY_ACK) {\n            const start = i + 1;\n            while (str.charAt(++i) !== \"-\" && i != str.length) { }\n            const buf = str.substring(start, i);\n            if (buf != Number(buf) || str.charAt(i) !== \"-\") {\n                throw new Error(\"Illegal attachments\");\n            }\n            p.attachments = Number(buf);\n        }\n        // look up namespace (if any)\n        if (\"/\" === str.charAt(i + 1)) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (\",\" === c)\n                    break;\n                if (i === str.length)\n                    break;\n            }\n            p.nsp = str.substring(start, i);\n        }\n        else {\n            p.nsp = \"/\";\n        }\n        // look up id\n        const next = str.charAt(i + 1);\n        if (\"\" !== next && Number(next) == next) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (null == c || Number(c) != c) {\n                    --i;\n                    break;\n                }\n                if (i === str.length)\n                    break;\n            }\n            p.id = Number(str.substring(start, i + 1));\n        }\n        // look up json data\n        if (str.charAt(++i)) {\n            const payload = this.tryParse(str.substr(i));\n            if (Decoder.isPayloadValid(p.type, payload)) {\n                p.data = payload;\n            }\n            else {\n                throw new Error(\"invalid payload\");\n            }\n        }\n        return p;\n    }\n    tryParse(str) {\n        try {\n            return JSON.parse(str, this.reviver);\n        }\n        catch (e) {\n            return false;\n        }\n    }\n    static isPayloadValid(type, payload) {\n        switch (type) {\n            case PacketType.CONNECT:\n                return isObject(payload);\n            case PacketType.DISCONNECT:\n                return payload === undefined;\n            case PacketType.CONNECT_ERROR:\n                return typeof payload === \"string\" || isObject(payload);\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                return (Array.isArray(payload) &&\n                    (typeof payload[0] === \"number\" ||\n                        (typeof payload[0] === \"string\" &&\n                            RESERVED_EVENTS.indexOf(payload[0]) === -1)));\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                return Array.isArray(payload);\n        }\n    }\n    /**\n     * Deallocates a parser's resources\n     */\n    destroy() {\n        if (this.reconstructor) {\n            this.reconstructor.finishedReconstruction();\n            this.reconstructor = null;\n        }\n    }\n}\n/**\n * A manager of a binary event's 'buffer sequence'. Should\n * be constructed whenever a packet of type BINARY_EVENT is\n * decoded.\n *\n * @param {Object} packet\n * @return {BinaryReconstructor} initialized reconstructor\n */\nclass BinaryReconstructor {\n    constructor(packet) {\n        this.packet = packet;\n        this.buffers = [];\n        this.reconPack = packet;\n    }\n    /**\n     * Method to be called when binary data received from connection\n     * after a BINARY_EVENT packet.\n     *\n     * @param {Buffer | ArrayBuffer} binData - the raw binary data received\n     * @return {null | Object} returns null if more binary data is expected or\n     *   a reconstructed packet object if all buffers have been received.\n     */\n    takeBinaryData(binData) {\n        this.buffers.push(binData);\n        if (this.buffers.length === this.reconPack.attachments) {\n            // done with buffer list\n            const packet = reconstructPacket(this.reconPack, this.buffers);\n            this.finishedReconstruction();\n            return packet;\n        }\n        return null;\n    }\n    /**\n     * Cleans up binary packet reconstruction variables.\n     */\n    finishedReconstruction() {\n        this.reconPack = null;\n        this.buffers = [];\n    }\n}\n", "const withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nconst isView = (obj) => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj.buffer instanceof ArrayBuffer;\n};\nconst toString = Object.prototype.toString;\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeFile = typeof File === \"function\" ||\n    (typeof File !== \"undefined\" &&\n        toString.call(File) === \"[object FileConstructor]\");\n/**\n * Returns true if obj is a Buffer, an ArrayBuffer, a Blob or a File.\n *\n * @private\n */\nexport function isBinary(obj) {\n    return ((withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj))) ||\n        (withNativeBlob && obj instanceof Blob) ||\n        (withNativeFile && obj instanceof File));\n}\nexport function hasBinary(obj, toJSON) {\n    if (!obj || typeof obj !== \"object\") {\n        return false;\n    }\n    if (Array.isArray(obj)) {\n        for (let i = 0, l = obj.length; i < l; i++) {\n            if (hasBinary(obj[i])) {\n                return true;\n            }\n        }\n        return false;\n    }\n    if (isBinary(obj)) {\n        return true;\n    }\n    if (obj.toJSON &&\n        typeof obj.toJSON === \"function\" &&\n        arguments.length === 1) {\n        return hasBinary(obj.toJSON(), true);\n    }\n    for (const key in obj) {\n        if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {\n            return true;\n        }\n    }\n    return false;\n}\n", "import { isBinary } from \"./is-binary.js\";\n/**\n * Replaces every Buffer | ArrayBuffer | Blob | File in packet with a numbered placeholder.\n *\n * @param {Object} packet - socket.io event packet\n * @return {Object} with deconstructed packet and list of buffers\n * @public\n */\nexport function deconstructPacket(packet) {\n    const buffers = [];\n    const packetData = packet.data;\n    const pack = packet;\n    pack.data = _deconstructPacket(packetData, buffers);\n    pack.attachments = buffers.length; // number of binary 'attachments'\n    return { packet: pack, buffers: buffers };\n}\nfunction _deconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (isBinary(data)) {\n        const placeholder = { _placeholder: true, num: buffers.length };\n        buffers.push(data);\n        return placeholder;\n    }\n    else if (Array.isArray(data)) {\n        const newData = new Array(data.length);\n        for (let i = 0; i < data.length; i++) {\n            newData[i] = _deconstructPacket(data[i], buffers);\n        }\n        return newData;\n    }\n    else if (typeof data === \"object\" && !(data instanceof Date)) {\n        const newData = {};\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                newData[key] = _deconstructPacket(data[key], buffers);\n            }\n        }\n        return newData;\n    }\n    return data;\n}\n/**\n * Reconstructs a binary packet from its placeholder packet and buffers\n *\n * @param {Object} packet - event packet with placeholders\n * @param {Array} buffers - binary buffers to put in placeholder positions\n * @return {Object} reconstructed packet\n * @public\n */\nexport function reconstructPacket(packet, buffers) {\n    packet.data = _reconstructPacket(packet.data, buffers);\n    delete packet.attachments; // no longer useful\n    return packet;\n}\nfunction _reconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (data && data._placeholder === true) {\n        const isIndexValid = typeof data.num === \"number\" &&\n            data.num >= 0 &&\n            data.num < buffers.length;\n        if (isIndexValid) {\n            return buffers[data.num]; // appropriate buffer (should be natural order anyway)\n        }\n        else {\n            throw new Error(\"illegal attachments\");\n        }\n    }\n    else if (Array.isArray(data)) {\n        for (let i = 0; i < data.length; i++) {\n            data[i] = _reconstructPacket(data[i], buffers);\n        }\n    }\n    else if (typeof data === \"object\") {\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                data[key] = _reconstructPacket(data[key], buffers);\n            }\n        }\n    }\n    return data;\n}\n", "export function on(obj, ev, fn) {\n    obj.on(ev, fn);\n    return function subDestroy() {\n        obj.off(ev, fn);\n    };\n}\n", "import { PacketType } from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\n/**\n * Internal events.\n * These events can't be emitted by the user.\n */\nconst RESERVED_EVENTS = Object.freeze({\n    connect: 1,\n    connect_error: 1,\n    disconnect: 1,\n    disconnecting: 1,\n    // EventEmitter reserved events: https://nodejs.org/api/events.html#events_event_newlistener\n    newListener: 1,\n    removeListener: 1,\n});\n/**\n * A Socket is the fundamental class for interacting with the server.\n *\n * A Socket belongs to a certain Namespace (by default /) and uses an underlying {@link Manager} to communicate.\n *\n * @example\n * const socket = io();\n *\n * socket.on(\"connect\", () => {\n *   console.log(\"connected\");\n * });\n *\n * // send an event to the server\n * socket.emit(\"foo\", \"bar\");\n *\n * socket.on(\"foobar\", () => {\n *   // an event was received from the server\n * });\n *\n * // upon disconnection\n * socket.on(\"disconnect\", (reason) => {\n *   console.log(`disconnected due to ${reason}`);\n * });\n */\nexport class Socket extends Emitter {\n    /**\n     * `Socket` constructor.\n     */\n    constructor(io, nsp, opts) {\n        super();\n        /**\n         * Whether the socket is currently connected to the server.\n         *\n         * @example\n         * const socket = io();\n         *\n         * socket.on(\"connect\", () => {\n         *   console.log(socket.connected); // true\n         * });\n         *\n         * socket.on(\"disconnect\", () => {\n         *   console.log(socket.connected); // false\n         * });\n         */\n        this.connected = false;\n        /**\n         * Whether the connection state was recovered after a temporary disconnection. In that case, any missed packets will\n         * be transmitted by the server.\n         */\n        this.recovered = false;\n        /**\n         * Buffer for packets received before the CONNECT packet\n         */\n        this.receiveBuffer = [];\n        /**\n         * Buffer for packets that will be sent once the socket is connected\n         */\n        this.sendBuffer = [];\n        /**\n         * The queue of packets to be sent with retry in case of failure.\n         *\n         * Packets are sent one by one, each waiting for the server acknowledgement, in order to guarantee the delivery order.\n         * @private\n         */\n        this._queue = [];\n        /**\n         * A sequence to generate the ID of the {@link QueuedPacket}.\n         * @private\n         */\n        this._queueSeq = 0;\n        this.ids = 0;\n        this.acks = {};\n        this.flags = {};\n        this.io = io;\n        this.nsp = nsp;\n        if (opts && opts.auth) {\n            this.auth = opts.auth;\n        }\n        this._opts = Object.assign({}, opts);\n        if (this.io._autoConnect)\n            this.open();\n    }\n    /**\n     * Whether the socket is currently disconnected\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"connect\", () => {\n     *   console.log(socket.disconnected); // false\n     * });\n     *\n     * socket.on(\"disconnect\", () => {\n     *   console.log(socket.disconnected); // true\n     * });\n     */\n    get disconnected() {\n        return !this.connected;\n    }\n    /**\n     * Subscribe to open, close and packet events\n     *\n     * @private\n     */\n    subEvents() {\n        if (this.subs)\n            return;\n        const io = this.io;\n        this.subs = [\n            on(io, \"open\", this.onopen.bind(this)),\n            on(io, \"packet\", this.onpacket.bind(this)),\n            on(io, \"error\", this.onerror.bind(this)),\n            on(io, \"close\", this.onclose.bind(this)),\n        ];\n    }\n    /**\n     * Whether the Socket will try to reconnect when its Manager connects or reconnects.\n     *\n     * @example\n     * const socket = io();\n     *\n     * console.log(socket.active); // true\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   if (reason === \"io server disconnect\") {\n     *     // the disconnection was initiated by the server, you need to manually reconnect\n     *     console.log(socket.active); // false\n     *   }\n     *   // else the socket will automatically try to reconnect\n     *   console.log(socket.active); // true\n     * });\n     */\n    get active() {\n        return !!this.subs;\n    }\n    /**\n     * \"Opens\" the socket.\n     *\n     * @example\n     * const socket = io({\n     *   autoConnect: false\n     * });\n     *\n     * socket.connect();\n     */\n    connect() {\n        if (this.connected)\n            return this;\n        this.subEvents();\n        if (!this.io[\"_reconnecting\"])\n            this.io.open(); // ensure open\n        if (\"open\" === this.io._readyState)\n            this.onopen();\n        return this;\n    }\n    /**\n     * Alias for {@link connect()}.\n     */\n    open() {\n        return this.connect();\n    }\n    /**\n     * Sends a `message` event.\n     *\n     * This method mimics the WebSocket.send() method.\n     *\n     * @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send\n     *\n     * @example\n     * socket.send(\"hello\");\n     *\n     * // this is equivalent to\n     * socket.emit(\"message\", \"hello\");\n     *\n     * @return self\n     */\n    send(...args) {\n        args.unshift(\"message\");\n        this.emit.apply(this, args);\n        return this;\n    }\n    /**\n     * Override `emit`.\n     * If the event is in `events`, it's emitted normally.\n     *\n     * @example\n     * socket.emit(\"hello\", \"world\");\n     *\n     * // all serializable datastructures are supported (no need to call JSON.stringify)\n     * socket.emit(\"hello\", 1, \"2\", { 3: [\"4\"], 5: Uint8Array.from([6]) });\n     *\n     * // with an acknowledgement from the server\n     * socket.emit(\"hello\", \"world\", (val) => {\n     *   // ...\n     * });\n     *\n     * @return self\n     */\n    emit(ev, ...args) {\n        if (RESERVED_EVENTS.hasOwnProperty(ev)) {\n            throw new Error('\"' + ev.toString() + '\" is a reserved event name');\n        }\n        args.unshift(ev);\n        if (this._opts.retries && !this.flags.fromQueue && !this.flags.volatile) {\n            this._addToQueue(args);\n            return this;\n        }\n        const packet = {\n            type: PacketType.EVENT,\n            data: args,\n        };\n        packet.options = {};\n        packet.options.compress = this.flags.compress !== false;\n        // event ack callback\n        if (\"function\" === typeof args[args.length - 1]) {\n            const id = this.ids++;\n            const ack = args.pop();\n            this._registerAckCallback(id, ack);\n            packet.id = id;\n        }\n        const isTransportWritable = this.io.engine &&\n            this.io.engine.transport &&\n            this.io.engine.transport.writable;\n        const discardPacket = this.flags.volatile && (!isTransportWritable || !this.connected);\n        if (discardPacket) {\n        }\n        else if (this.connected) {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        }\n        else {\n            this.sendBuffer.push(packet);\n        }\n        this.flags = {};\n        return this;\n    }\n    /**\n     * @private\n     */\n    _registerAckCallback(id, ack) {\n        var _a;\n        const timeout = (_a = this.flags.timeout) !== null && _a !== void 0 ? _a : this._opts.ackTimeout;\n        if (timeout === undefined) {\n            this.acks[id] = ack;\n            return;\n        }\n        // @ts-ignore\n        const timer = this.io.setTimeoutFn(() => {\n            delete this.acks[id];\n            for (let i = 0; i < this.sendBuffer.length; i++) {\n                if (this.sendBuffer[i].id === id) {\n                    this.sendBuffer.splice(i, 1);\n                }\n            }\n            ack.call(this, new Error(\"operation has timed out\"));\n        }, timeout);\n        this.acks[id] = (...args) => {\n            // @ts-ignore\n            this.io.clearTimeoutFn(timer);\n            ack.apply(this, [null, ...args]);\n        };\n    }\n    /**\n     * Emits an event and waits for an acknowledgement\n     *\n     * @example\n     * // without timeout\n     * const response = await socket.emitWithAck(\"hello\", \"world\");\n     *\n     * // with a specific timeout\n     * try {\n     *   const response = await socket.timeout(1000).emitWithAck(\"hello\", \"world\");\n     * } catch (err) {\n     *   // the server did not acknowledge the event in the given delay\n     * }\n     *\n     * @return a Promise that will be fulfilled when the server acknowledges the event\n     */\n    emitWithAck(ev, ...args) {\n        // the timeout flag is optional\n        const withErr = this.flags.timeout !== undefined || this._opts.ackTimeout !== undefined;\n        return new Promise((resolve, reject) => {\n            args.push((arg1, arg2) => {\n                if (withErr) {\n                    return arg1 ? reject(arg1) : resolve(arg2);\n                }\n                else {\n                    return resolve(arg1);\n                }\n            });\n            this.emit(ev, ...args);\n        });\n    }\n    /**\n     * Add the packet to the queue.\n     * @param args\n     * @private\n     */\n    _addToQueue(args) {\n        let ack;\n        if (typeof args[args.length - 1] === \"function\") {\n            ack = args.pop();\n        }\n        const packet = {\n            id: this._queueSeq++,\n            tryCount: 0,\n            pending: false,\n            args,\n            flags: Object.assign({ fromQueue: true }, this.flags),\n        };\n        args.push((err, ...responseArgs) => {\n            if (packet !== this._queue[0]) {\n                // the packet has already been acknowledged\n                return;\n            }\n            const hasError = err !== null;\n            if (hasError) {\n                if (packet.tryCount > this._opts.retries) {\n                    this._queue.shift();\n                    if (ack) {\n                        ack(err);\n                    }\n                }\n            }\n            else {\n                this._queue.shift();\n                if (ack) {\n                    ack(null, ...responseArgs);\n                }\n            }\n            packet.pending = false;\n            return this._drainQueue();\n        });\n        this._queue.push(packet);\n        this._drainQueue();\n    }\n    /**\n     * Send the first packet of the queue, and wait for an acknowledgement from the server.\n     * @param force - whether to resend a packet that has not been acknowledged yet\n     *\n     * @private\n     */\n    _drainQueue(force = false) {\n        if (!this.connected || this._queue.length === 0) {\n            return;\n        }\n        const packet = this._queue[0];\n        if (packet.pending && !force) {\n            return;\n        }\n        packet.pending = true;\n        packet.tryCount++;\n        this.flags = packet.flags;\n        this.emit.apply(this, packet.args);\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param packet\n     * @private\n     */\n    packet(packet) {\n        packet.nsp = this.nsp;\n        this.io._packet(packet);\n    }\n    /**\n     * Called upon engine `open`.\n     *\n     * @private\n     */\n    onopen() {\n        if (typeof this.auth == \"function\") {\n            this.auth((data) => {\n                this._sendConnectPacket(data);\n            });\n        }\n        else {\n            this._sendConnectPacket(this.auth);\n        }\n    }\n    /**\n     * Sends a CONNECT packet to initiate the Socket.IO session.\n     *\n     * @param data\n     * @private\n     */\n    _sendConnectPacket(data) {\n        this.packet({\n            type: PacketType.CONNECT,\n            data: this._pid\n                ? Object.assign({ pid: this._pid, offset: this._lastOffset }, data)\n                : data,\n        });\n    }\n    /**\n     * Called upon engine or manager `error`.\n     *\n     * @param err\n     * @private\n     */\n    onerror(err) {\n        if (!this.connected) {\n            this.emitReserved(\"connect_error\", err);\n        }\n    }\n    /**\n     * Called upon engine `close`.\n     *\n     * @param reason\n     * @param description\n     * @private\n     */\n    onclose(reason, description) {\n        this.connected = false;\n        delete this.id;\n        this.emitReserved(\"disconnect\", reason, description);\n    }\n    /**\n     * Called with socket packet.\n     *\n     * @param packet\n     * @private\n     */\n    onpacket(packet) {\n        const sameNamespace = packet.nsp === this.nsp;\n        if (!sameNamespace)\n            return;\n        switch (packet.type) {\n            case PacketType.CONNECT:\n                if (packet.data && packet.data.sid) {\n                    this.onconnect(packet.data.sid, packet.data.pid);\n                }\n                else {\n                    this.emitReserved(\"connect_error\", new Error(\"It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)\"));\n                }\n                break;\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                this.onevent(packet);\n                break;\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                this.onack(packet);\n                break;\n            case PacketType.DISCONNECT:\n                this.ondisconnect();\n                break;\n            case PacketType.CONNECT_ERROR:\n                this.destroy();\n                const err = new Error(packet.data.message);\n                // @ts-ignore\n                err.data = packet.data.data;\n                this.emitReserved(\"connect_error\", err);\n                break;\n        }\n    }\n    /**\n     * Called upon a server event.\n     *\n     * @param packet\n     * @private\n     */\n    onevent(packet) {\n        const args = packet.data || [];\n        if (null != packet.id) {\n            args.push(this.ack(packet.id));\n        }\n        if (this.connected) {\n            this.emitEvent(args);\n        }\n        else {\n            this.receiveBuffer.push(Object.freeze(args));\n        }\n    }\n    emitEvent(args) {\n        if (this._anyListeners && this._anyListeners.length) {\n            const listeners = this._anyListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, args);\n            }\n        }\n        super.emit.apply(this, args);\n        if (this._pid && args.length && typeof args[args.length - 1] === \"string\") {\n            this._lastOffset = args[args.length - 1];\n        }\n    }\n    /**\n     * Produces an ack callback to emit with an event.\n     *\n     * @private\n     */\n    ack(id) {\n        const self = this;\n        let sent = false;\n        return function (...args) {\n            // prevent double callbacks\n            if (sent)\n                return;\n            sent = true;\n            self.packet({\n                type: PacketType.ACK,\n                id: id,\n                data: args,\n            });\n        };\n    }\n    /**\n     * Called upon a server acknowlegement.\n     *\n     * @param packet\n     * @private\n     */\n    onack(packet) {\n        const ack = this.acks[packet.id];\n        if (\"function\" === typeof ack) {\n            ack.apply(this, packet.data);\n            delete this.acks[packet.id];\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon server connect.\n     *\n     * @private\n     */\n    onconnect(id, pid) {\n        this.id = id;\n        this.recovered = pid && this._pid === pid;\n        this._pid = pid; // defined only if connection state recovery is enabled\n        this.connected = true;\n        this.emitBuffered();\n        this.emitReserved(\"connect\");\n        this._drainQueue(true);\n    }\n    /**\n     * Emit buffered events (received and emitted).\n     *\n     * @private\n     */\n    emitBuffered() {\n        this.receiveBuffer.forEach((args) => this.emitEvent(args));\n        this.receiveBuffer = [];\n        this.sendBuffer.forEach((packet) => {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        });\n        this.sendBuffer = [];\n    }\n    /**\n     * Called upon server disconnect.\n     *\n     * @private\n     */\n    ondisconnect() {\n        this.destroy();\n        this.onclose(\"io server disconnect\");\n    }\n    /**\n     * Called upon forced client/server side disconnections,\n     * this method ensures the manager stops tracking us and\n     * that reconnections don't get triggered for this.\n     *\n     * @private\n     */\n    destroy() {\n        if (this.subs) {\n            // clean subscriptions to avoid reconnections\n            this.subs.forEach((subDestroy) => subDestroy());\n            this.subs = undefined;\n        }\n        this.io[\"_destroy\"](this);\n    }\n    /**\n     * Disconnects the socket manually. In that case, the socket will not try to reconnect.\n     *\n     * If this is the last active Socket instance of the {@link Manager}, the low-level connection will be closed.\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   // console.log(reason); prints \"io client disconnect\"\n     * });\n     *\n     * socket.disconnect();\n     *\n     * @return self\n     */\n    disconnect() {\n        if (this.connected) {\n            this.packet({ type: PacketType.DISCONNECT });\n        }\n        // remove socket from pool\n        this.destroy();\n        if (this.connected) {\n            // fire events\n            this.onclose(\"io client disconnect\");\n        }\n        return this;\n    }\n    /**\n     * Alias for {@link disconnect()}.\n     *\n     * @return self\n     */\n    close() {\n        return this.disconnect();\n    }\n    /**\n     * Sets the compress flag.\n     *\n     * @example\n     * socket.compress(false).emit(\"hello\");\n     *\n     * @param compress - if `true`, compresses the sending data\n     * @return self\n     */\n    compress(compress) {\n        this.flags.compress = compress;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the event message will be dropped when this socket is not\n     * ready to send messages.\n     *\n     * @example\n     * socket.volatile.emit(\"hello\"); // the server may or may not receive it\n     *\n     * @returns self\n     */\n    get volatile() {\n        this.flags.volatile = true;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the callback will be called with an error when the\n     * given number of milliseconds have elapsed without an acknowledgement from the server:\n     *\n     * @example\n     * socket.timeout(5000).emit(\"my-event\", (err) => {\n     *   if (err) {\n     *     // the server did not acknowledge the event in the given delay\n     *   }\n     * });\n     *\n     * @returns self\n     */\n    timeout(timeout) {\n        this.flags.timeout = timeout;\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * @example\n     * socket.onAny((event, ...args) => {\n     *   console.log(`got ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * @example\n     * socket.prependAny((event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * }\n     *\n     * socket.onAny(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAny(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAny();\n     *\n     * @param listener\n     */\n    offAny(listener) {\n        if (!this._anyListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAny() {\n        return this._anyListeners || [];\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.onAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.prependAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * }\n     *\n     * socket.onAnyOutgoing(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAnyOutgoing(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAnyOutgoing();\n     *\n     * @param [listener] - the catch-all listener (optional)\n     */\n    offAnyOutgoing(listener) {\n        if (!this._anyOutgoingListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyOutgoingListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyOutgoingListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAnyOutgoing() {\n        return this._anyOutgoingListeners || [];\n    }\n    /**\n     * Notify the listeners for each packet sent\n     *\n     * @param packet\n     *\n     * @private\n     */\n    notifyOutgoingListeners(packet) {\n        if (this._anyOutgoingListeners && this._anyOutgoingListeners.length) {\n            const listeners = this._anyOutgoingListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, packet.data);\n            }\n        }\n    }\n}\n", "/**\n * Initialize backoff timer with `opts`.\n *\n * - `min` initial timeout in milliseconds [100]\n * - `max` max timeout [10000]\n * - `jitter` [0]\n * - `factor` [2]\n *\n * @param {Object} opts\n * @api public\n */\nexport function Backoff(opts) {\n    opts = opts || {};\n    this.ms = opts.min || 100;\n    this.max = opts.max || 10000;\n    this.factor = opts.factor || 2;\n    this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;\n    this.attempts = 0;\n}\n/**\n * Return the backoff duration.\n *\n * @return {Number}\n * @api public\n */\nBackoff.prototype.duration = function () {\n    var ms = this.ms * Math.pow(this.factor, this.attempts++);\n    if (this.jitter) {\n        var rand = Math.random();\n        var deviation = Math.floor(rand * this.jitter * ms);\n        ms = (Math.floor(rand * 10) & 1) == 0 ? ms - deviation : ms + deviation;\n    }\n    return Math.min(ms, this.max) | 0;\n};\n/**\n * Reset the number of attempts.\n *\n * @api public\n */\nBackoff.prototype.reset = function () {\n    this.attempts = 0;\n};\n/**\n * Set the minimum duration\n *\n * @api public\n */\nBackoff.prototype.setMin = function (min) {\n    this.ms = min;\n};\n/**\n * Set the maximum duration\n *\n * @api public\n */\nBackoff.prototype.setMax = function (max) {\n    this.max = max;\n};\n/**\n * Set the jitter\n *\n * @api public\n */\nBackoff.prototype.setJitter = function (jitter) {\n    this.jitter = jitter;\n};\n", "import { Socket as Engine, installTimerFunctions, nextTick, } from \"engine.io-client\";\nimport { Socket } from \"./socket.js\";\nimport * as parser from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Backoff } from \"./contrib/backo2.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\nexport class Manager extends Emitter {\n    constructor(uri, opts) {\n        var _a;\n        super();\n        this.nsps = {};\n        this.subs = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = undefined;\n        }\n        opts = opts || {};\n        opts.path = opts.path || \"/socket.io\";\n        this.opts = opts;\n        installTimerFunctions(this, opts);\n        this.reconnection(opts.reconnection !== false);\n        this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);\n        this.reconnectionDelay(opts.reconnectionDelay || 1000);\n        this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);\n        this.randomizationFactor((_a = opts.randomizationFactor) !== null && _a !== void 0 ? _a : 0.5);\n        this.backoff = new Backoff({\n            min: this.reconnectionDelay(),\n            max: this.reconnectionDelayMax(),\n            jitter: this.randomizationFactor(),\n        });\n        this.timeout(null == opts.timeout ? 20000 : opts.timeout);\n        this._readyState = \"closed\";\n        this.uri = uri;\n        const _parser = opts.parser || parser;\n        this.encoder = new _parser.Encoder();\n        this.decoder = new _parser.Decoder();\n        this._autoConnect = opts.autoConnect !== false;\n        if (this._autoConnect)\n            this.open();\n    }\n    reconnection(v) {\n        if (!arguments.length)\n            return this._reconnection;\n        this._reconnection = !!v;\n        return this;\n    }\n    reconnectionAttempts(v) {\n        if (v === undefined)\n            return this._reconnectionAttempts;\n        this._reconnectionAttempts = v;\n        return this;\n    }\n    reconnectionDelay(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelay;\n        this._reconnectionDelay = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMin(v);\n        return this;\n    }\n    randomizationFactor(v) {\n        var _a;\n        if (v === undefined)\n            return this._randomizationFactor;\n        this._randomizationFactor = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setJitter(v);\n        return this;\n    }\n    reconnectionDelayMax(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelayMax;\n        this._reconnectionDelayMax = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMax(v);\n        return this;\n    }\n    timeout(v) {\n        if (!arguments.length)\n            return this._timeout;\n        this._timeout = v;\n        return this;\n    }\n    /**\n     * Starts trying to reconnect if reconnection is enabled and we have not\n     * started reconnecting yet\n     *\n     * @private\n     */\n    maybeReconnectOnOpen() {\n        // Only try to reconnect if it's the first time we're connecting\n        if (!this._reconnecting &&\n            this._reconnection &&\n            this.backoff.attempts === 0) {\n            // keeps reconnection from firing twice for the same reconnection loop\n            this.reconnect();\n        }\n    }\n    /**\n     * Sets the current transport `socket`.\n     *\n     * @param {Function} fn - optional, callback\n     * @return self\n     * @public\n     */\n    open(fn) {\n        if (~this._readyState.indexOf(\"open\"))\n            return this;\n        this.engine = new Engine(this.uri, this.opts);\n        const socket = this.engine;\n        const self = this;\n        this._readyState = \"opening\";\n        this.skipReconnect = false;\n        // emit `open`\n        const openSubDestroy = on(socket, \"open\", function () {\n            self.onopen();\n            fn && fn();\n        });\n        const onError = (err) => {\n            this.cleanup();\n            this._readyState = \"closed\";\n            this.emitReserved(\"error\", err);\n            if (fn) {\n                fn(err);\n            }\n            else {\n                // Only do this if there is no fn to handle the error\n                this.maybeReconnectOnOpen();\n            }\n        };\n        // emit `error`\n        const errorSub = on(socket, \"error\", onError);\n        if (false !== this._timeout) {\n            const timeout = this._timeout;\n            // set timer\n            const timer = this.setTimeoutFn(() => {\n                openSubDestroy();\n                onError(new Error(\"timeout\"));\n                socket.close();\n   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on(this.decoder, \"decoded\", this.ondecoded.bind(this)));\n    }\n    /**\n     * Called upon a ping.\n     *\n     * @private\n     */\n    onping() {\n        this.emitReserved(\"ping\");\n    }\n    /**\n     * Called with data.\n     *\n     * @private\n     */\n    ondata(data) {\n        try {\n            this.decoder.add(data);\n        }\n        catch (e) {\n            this.onclose(\"parse error\", e);\n        }\n    }\n    /**\n     * Called when parser fully decodes a packet.\n     *\n     * @private\n     */\n    ondecoded(packet) {\n        // the nextTick call prevents an exception in a user-provided event listener from triggering a disconnection due to a \"parse error\"\n        nextTick(() => {\n            this.emitReserved(\"packet\", packet);\n        }, this.setTimeoutFn);\n    }\n    /**\n     * Called upon socket error.\n     *\n     * @private\n     */\n    onerror(err) {\n        this.emitReserved(\"error\", err);\n    }\n    /**\n     * Creates a new socket for the given `nsp`.\n     *\n     * @return {Socket}\n     * @public\n     */\n    socket(nsp, opts) {\n        let socket = this.nsps[nsp];\n        if (!socket) {\n            socket = new Socket(this, nsp, opts);\n            this.nsps[nsp] = socket;\n        }\n        else if (this._autoConnect && !socket.active) {\n            socket.connect();\n        }\n        return socket;\n    }\n    /**\n     * Called upon a socket close.\n     *\n     * @param socket\n     * @private\n     */\n    _destroy(socket) {\n        const nsps = Object.keys(this.nsps);\n        for (const nsp of nsps) {\n            const socket = this.nsps[nsp];\n            if (socket.active) {\n                return;\n            }\n        }\n        this._close();\n    }\n    /**\n     * Writes a packet.\n     *\n     * @param packet\n     * @private\n     */\n    _packet(packet) {\n        const encodedPackets = this.encoder.encode(packet);\n        for (let i = 0; i < encodedPackets.length; i++) {\n            this.engine.write(encodedPackets[i], packet.options);\n        }\n    }\n    /**\n     * Clean up transport subscriptions and packet buffer.\n     *\n     * @private\n     */\n    cleanup() {\n        this.subs.forEach((subDestroy) => subDestroy());\n        this.subs.length = 0;\n        this.decoder.destroy();\n    }\n    /**\n     * Close the current socket.\n     *\n     * @private\n     */\n    _close() {\n        this.skipReconnect = true;\n        this._reconnecting = false;\n        this.onclose(\"forced close\");\n        if (this.engine)\n            this.engine.close();\n    }\n    /**\n     * Alias for close()\n     *\n     * @private\n     */\n    disconnect() {\n        return this._close();\n    }\n    /**\n     * Called upon engine close.\n     *\n     * @private\n     */\n    onclose(reason, description) {\n        this.cleanup();\n        this.backoff.reset();\n        this._readyState = \"closed\";\n        this.emitReserved(\"close\", reason, description);\n        if (this._reconnection && !this.skipReconnect) {\n            this.reconnect();\n        }\n    }\n    /**\n     * Attempt a reconnection.\n     *\n     * @private\n     */\n    reconnect() {\n        if (this._reconnecting || this.skipReconnect)\n            return this;\n        const self = this;\n        if (this.backoff.attempts >= this._reconnectionAttempts) {\n            this.backoff.reset();\n            this.emitReserved(\"reconnect_failed\");\n            this._reconnecting = false;\n        }\n        else {\n            const delay = this.backoff.duration();\n            this._reconnecting = true;\n            const timer = this.setTimeoutFn(() => {\n                if (self.skipReconnect)\n                    return;\n                this.emitReserved(\"reconnect_attempt\", self.backoff.attempts);\n                // check again for the case socket closed in above events\n                if (self.skipReconnect)\n                    return;\n                self.open((err) => {\n                    if (err) {\n                        self._reconnecting = false;\n                        self.reconnect();\n                        this.emitReserved(\"reconnect_error\", err);\n                    }\n                    else {\n                        self.onreconnect();\n                    }\n                });\n            }, delay);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n    }\n    /**\n     * Called upon successful reconnect.\n     *\n     * @private\n     */\n    onreconnect() {\n        const attempt = this.backoff.attempts;\n        this._reconnecting = false;\n        this.backoff.reset();\n        this.emitReserved(\"reconnect\", attempt);\n    }\n}\n", "import { url } from \"./url.js\";\nimport { Manager } from \"./manager.js\";\nimport { Socket } from \"./socket.js\";\n/**\n * Managers cache.\n */\nconst cache = {};\nfunction lookup(uri, opts) {\n    if (typeof uri === \"object\") {\n        opts = uri;\n        uri = undefined;\n    }\n    opts = opts || {};\n    const parsed = url(uri, opts.path || \"/socket.io\");\n    const source = parsed.source;\n    const id = parsed.id;\n    const path = parsed.path;\n    const sameNamespace = cache[id] && path in cache[id][\"nsps\"];\n    const newConnection = opts.forceNew ||\n        opts[\"force new connection\"] ||\n        false === opts.multiplex ||\n        sameNamespace;\n    let io;\n    if (newConnection) {\n        io = new Manager(source, opts);\n    }\n    else {\n        if (!cache[id]) {\n            cache[id] = new Manager(source, opts);\n        }\n        io = cache[id];\n    }\n    if (parsed.query && !opts.query) {\n        opts.query = parsed.queryKey;\n    }\n    return io.socket(parsed.path, opts);\n}\n// so that \"lookup\" can be used both as a function (e.g. `io(...)`) and as a\n// namespace (e.g. `io.connect(...)`), for backward compatibility\nObject.assign(lookup, {\n    Manager,\n    Socket,\n    io: lookup,\n    connect: lookup,\n});\n/**\n * Protocol version.\n *\n * @public\n */\nexport { protocol } from \"socket.io-parser\";\n/**\n * Expose constructors for standalone build.\n *\n * @public\n */\nexport { Manager, Socket, lookup as io, lookup as connect, lookup as default, };\n"],
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   "names": ["require_ui", "__commonJSMin", "exports", "module", "_a", "Ui", "win", "extLog", "jsonHighlight", "__publicField", "json", "msg", "el", "component", "mdText", "opts", "str", "lang", "md", "html", "url", "newScript", "newStyle", "textFn", "type", "ui", "content", "toaster", "toast", "evt", "config", "notify", "resolve", "reject", "ev", "permit", "response", "contentType", "data", "err", "comp", "attrib", "prop", "parentEl", "components", "ns", "compToAdd", "i", "newEl", "isRecurse", "elParent", "all", "compToRemove", "els", "compToReplace", "elToReplace", "compToUpd", "elToUpd", "__toESM", "__require", "script", "sheet", "node", "cssSelector", "thisOut", "listEntries", "bodyEntries", "headEntries", "cols", "v", "propName", "selection", "out", "p", "key", "uiOptions", "error", "slot", "txtReturn", "import_ui", "_UibVar", "__publicField", "attrib", "oldVal", "newVal", "val", "t", "UibVar", "PACKET_TYPES", "PACKET_TYPES_REVERSE", "key", "ERROR_PACKET", "withNativeBlob", 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"delay", "factor", "depth", "reason", "lookup", "options", "eMsg", "uibuilder", "uibuilder_module_default", "uibuilder", "UibVar"]
 }
diff --git a/front-end/uibuilder.iife.js b/front-end/uibuilder.iife.js
index 8b96a979..fd31e4f6 100644
--- a/front-end/uibuilder.iife.js
+++ b/front-end/uibuilder.iife.js
@@ -441,6 +441,10 @@
             this.replaceSlotMarkdown(el, comp);
           }
         }
+        /** External alias for _uiComposeComponent
+         * @param {*} el HTML Element to enhance
+         * @param {*} comp Individual uibuilder ui component spec
+         */
         uiEnhanceElement(el, comp) {
           this._uiComposeComponent(el, comp);
         }
diff --git a/front-end/uibuilder.iife.min.js.map b/front-end/uibuilder.iife.min.js.map
index da876191..e7146b2c 100644
--- a/front-end/uibuilder.iife.min.js.map
+++ b/front-end/uibuilder.iife.min.js.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
   "sources": ["src/front-end-module/ui.js", "src/front-end-module/uibuilder.module.js", "src/components/uib-var.js", "node_modules/engine.io-parser/build/esm/commons.js", "node_modules/engine.io-parser/build/esm/encodePacket.browser.js", "node_modules/engine.io-parser/build/esm/contrib/base64-arraybuffer.js", "node_modules/engine.io-parser/build/esm/decodePacket.browser.js", "node_modules/engine.io-parser/build/esm/index.js", "node_modules/@socket.io/component-emitter/index.mjs", "node_modules/engine.io-client/build/esm/globalThis.browser.js", "node_modules/engine.io-client/build/esm/util.js", "node_modules/engine.io-client/build/esm/contrib/parseqs.js", "node_modules/engine.io-client/build/esm/transport.js", "node_modules/engine.io-client/build/esm/contrib/yeast.js", "node_modules/engine.io-client/build/esm/contrib/has-cors.js", "node_modules/engine.io-client/build/esm/transports/xmlhttprequest.browser.js", "node_modules/engine.io-client/build/esm/transports/polling.js", "node_modules/engine.io-client/build/esm/transports/websocket-constructor.browser.js", "node_modules/engine.io-client/build/esm/transports/websocket.js", "node_modules/engine.io-client/build/esm/transports/webtransport.js", "node_modules/engine.io-client/build/esm/transports/index.js", "node_modules/engine.io-client/build/esm/contrib/parseuri.js", "node_modules/engine.io-client/build/esm/socket.js", "node_modules/engine.io-client/build/esm/index.js", "node_modules/socket.io-client/build/esm/url.js", "node_modules/socket.io-parser/build/esm/index.js", "node_modules/socket.io-parser/build/esm/is-binary.js", "node_modules/socket.io-parser/build/esm/binary.js", "node_modules/socket.io-client/build/esm/on.js", "node_modules/socket.io-client/build/esm/socket.js", "node_modules/socket.io-client/build/esm/contrib/backo2.js", "node_modules/socket.io-client/build/esm/manager.js", "node_modules/socket.io-client/build/esm/index.js"],
-  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        this._uiManager(msg)\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += msg.payload\n        if (ui.content) content += ui.content\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    // Namespaces - See https://stackoverflow.com/a/52572048/1309986\n    // const NAMESPACES = {\n    //     svg: 'http://www.w3.org/2000/svg',\n    //     html: 'http://www.w3.org/1999/xhtml',\n    //     xml: 'http://www.w3.org/XML/1998/namespace',\n    //     xlink: 'http://www.w3.org/1999/xlink',\n    //     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n    // }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n\n    } // --- end of _uiManager ---\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName !== null && propName !== '') {\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    // Nightmare of different object types in a DOM Element!\n                    if (prop.constructor.name === 'NamedNodeMap') { // Attributes\n                        const p = {}\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                        out.push(p)\n                    } else if (!prop.constructor.name.toLowerCase().includes('map')) { // Ordinary properties\n                        out.push({\n                            [propName]: prop\n                        })\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                        out.push(p)\n                    }\n                }\n\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n", "/* This is the Front-End JavaScript for uibuilder  in HTML Module form\n  It provides a number of global objects that can be used in your own javascript.\n  see the docs folder `./docs/uibuilder.module.md` for details of how to use this fully.\n\n  Please use the default index.js file for your own code and leave this as-is.\n  See Uib._meta for client version string\n\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n//#region --- Type Defs --- //\n/**\n * A string containing HTML markup\n * @typedef {string} html\n */\n//#endregion --- Type Defs --- //\n\n//#region --- We need the Socket.IO & ui libraries & the uib-var component  --- //\n// @ts-ignore - Note: Only works when using esbuild to bundle\nimport Ui from './ui'\nimport UibVar from '../components/uib-var'\nimport io from 'socket.io-client'\n\n// TODO - Maybe - check if already loaded as window['io']?\n// TODO - Maybe - Should this be moved to inside the class - would know the httpRoot then so less need to guess?\n// TODO           Or, could pull the cookie processing out of the class\n// const ioLocns = [ // Likely locations of the Socket.IO client library\n//     // Where it should normally be\n//     '../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and haven't changed httpNodeRoot\n//     '/uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and have changed httpNodeRoot\n//     '../../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Direct from the Internet - last ditch attempt\n//     'https://cdn.jsdelivr.net/npm/socket.io-client/+esm',\n// ]\n\n// let io\n// for (const locn of ioLocns) {\n//     try {\n//         ({ io } = await import(locn))\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library found at '${locn}'`)()\n//     } catch (e) {\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library not found at '${locn}'`)()\n//     }\n//     if (io) break\n// }\n// if (!io) log('error', 'uibuilder.module.js', 'Socket.IO client failed to load')()\n//#endregion -------- -------- -------- //\n\nconst version = '6.8.0-src'\n\n// TODO Add option to allow log events to be sent back to Node-RED as uib ctrl msgs\n//#region --- Module-level utility functions --- //\n\n// @ts-ignore Detect whether the loaded library is minified or not\nconst isMinified = !(/param/).test(function (param) { }) // eslint-disable-line no-unused-vars\n\n//#region --- print/console - debugging output functions --- //\n\n/** Default log level - Error & Warn */\nlet logLevel = isMinified ? 0 : 1  // When using minified lib, assume production and only log errors otherwise also log warn\n// function changeLogLevel(level) {\n//     logLevel = level\n//     console.trace = logLevel < 4 ? function(){} : console.trace\n//     console.debug = logLevel < 2 ? function(){} : console.debug\n//     if ( logLevel < 1 ) {\n//         console.log = console.group = console.groupEnd =  function(){}\n//     }\n// }\n\n// Experimental\nconst LOG_STYLES = {\n    // 0\n    error: {\n        css: 'background: red; color: black;',\n        txtCss: 'color: red; ',\n        pre: '\u26D4 ',\n        console: 'error',  // or trace\n    },\n    // 1\n    warn: {\n        css: 'background: darkorange; color: black;',\n        txtCss: 'color: darkorange; ',\n        pre: '\u26A0 ',\n        console: 'warn',\n    },\n    // 2\n    info: {\n        css: 'background: aqua; color: black;',\n        txtCss: 'color: aqua;',\n        pre: '\u2757 ',\n        console: 'info',\n    },\n    // 3\n    log: {\n        css: 'background: grey; color: yellow;',\n        txtCss: 'color: grey;',\n        pre: '',\n        console: 'log',\n    },\n    // 4\n    debug: {\n        css: 'background: chartreuse; color: black;',\n        txtCss: 'color: chartreuse;',\n        pre: '',\n        console: 'debug',\n    },\n    // 5\n    trace: {\n        css: 'background: indigo; color: yellow;',\n        txtCss: 'color: hotpink;',\n        pre: '',\n        console: 'log',\n    },\n\n    names: ['error', 'warn', 'info', 'log', 'debug', 'trace'],\n    reset: 'color: inherit;',\n    head: 'font-weight:bold; font-style:italic;',\n    level: 'font-weight:bold; border-radius: 3px; padding: 2px 5px; display:inline-block;',\n}\n/** Custom logging. e.g. log(2, 'here:there', 'jiminy', {fred:'jim'})()\n * @returns {Function} Log function @example log(2, 'here:there', 'jiminy', {fred:'jim'})()\n */\nfunction log() {\n    // Get the args\n    const args = Array.prototype.slice.call(arguments)\n\n    // 1st arg is the log level/type\n    let level = args.shift()\n    let strLevel\n    switch (level) {\n        case 'trace':\n        case 5: {\n            if (logLevel < 5) break\n            level = 5 // make sure level is numeric\n            strLevel = 'trace'\n            break\n        }\n\n        case 'debug':\n        case 4: {\n            if (logLevel < 4) break\n            level = 4\n            strLevel = 'debug'\n            break\n        }\n\n        case 'log':\n        case 3: {\n            if (logLevel < 3) break\n            level = 3\n            strLevel = 'log'\n            break\n        }\n\n        case 'info':\n        case '':\n        case 2: {\n            if (logLevel < 2) break\n            level = 2\n            strLevel = 'info'\n            break\n        }\n\n        case 'warn':\n        case 1: {\n            if (logLevel < 1) break\n            level = 1\n            strLevel = 'warn'\n            break\n        }\n\n        case 'error':\n        case 'err':\n        case 0: {\n            if (logLevel < 0) break\n            level = 0\n            strLevel = 'error'\n            break\n        }\n\n        default: {\n            level = -1\n            break\n        }\n\n    }\n\n    // If set to something unknown, no log output\n    if (strLevel === undefined) return function () { }\n\n    // 2nd arg is a heading that will be colour highlighted\n    const head = args.shift()\n\n    // Bind back to console.log (could use console[strLevel] but some levels ignore some formatting, use console.xxx directly or dedicated fn)\n    return Function.prototype.bind.call(\n        console[LOG_STYLES[strLevel].console],\n        console,\n        `%c${LOG_STYLES[strLevel].pre}${strLevel}%c [${head}]`, `${LOG_STYLES.level} ${LOG_STYLES[strLevel].css}`, `${LOG_STYLES.head} ${LOG_STYLES[strLevel].txtCss}`,\n        ...args\n    )\n}\n//#endregion\n\n/** A hack to dynamically load a remote module and wait until it is loaded\n * @param {string} url The URL of the module to load\n * @returns {object|null} Either the result object or null (if the load fails)\n */\n// function loadModule(url) { // eslint-disable-line no-unused-vars\n//     let done\n\n//     import(url)\n//         .then(res => {\n//             log('debug', '>> then >>', res)()\n//             done = res\n//         })\n//         .catch(err => {\n//             console.error(`[uibuilder:loadModule] Could not load module ${url}`, err)\n//             done = null\n//         })\n\n//     //  eslint-disable-next-line no-empty\n//     while (!done) { } // eslint-disable-line no-unmodified-loop-condition\n\n//     return done\n// }\n\n/** Makes a null or non-object into an object\n * If not null, moves \"thing\" to {payload:thing}\n *\n * @param {*} thing Thing to check\n * @param {string} [property='payload'] property that \"thing\" is moved to if not null and not an object\n * @returns {!object} _\n */\nfunction makeMeAnObject(thing, property) {\n    if (!property) property = 'payload'\n    if (typeof property !== 'string') {\n        log('warn', 'uibuilderfe:makeMeAnObject', `WARNING: property parameter must be a string and not: ${typeof property}`)()\n        property = 'payload'\n    }\n    let out = {}\n    if ( thing !== null && thing.constructor.name === 'Object' ) {\n        out = thing\n    } else if (thing !== null) {\n        out[property] = thing\n    }\n    return out\n} // --- End of make me an object --- //\n\n/** Joins all arguments as a URL string\n * see http://stackoverflow.com/a/28592528/3016654\n * since v1.0.10, fixed potential double // issue\n * arguments {string} URL fragments\n * @returns {string} _\n */\nfunction urlJoin() {\n    const paths = Array.prototype.slice.call(arguments)\n    const url = '/' + paths.map(function (e) {\n        return e.replace(/^\\/|\\/$/g, '')\n    })\n        .filter(function (e) {\n            return e\n        })\n        .join('/')\n    return url.replace('//', '/')\n} // ---- End of urlJoin ---- //\n\n/** Convert JSON to Syntax Highlighted HTML\n * @param {object} json A JSON/JavaScript Object\n * @returns {html} Object reformatted as highlighted HTML\n */\nfunction syntaxHighlight(json) {\n    if (json === undefined) {\n        json = '<span class=\"undefined\">undefined</span>'\n    } else {\n        try {\n            json = JSON.stringify(json, undefined, 4)\n            // json = json.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;') // eslint-disable-line newline-per-chained-call\n            json = json.replace(/(\"(\\\\u[a-zA-Z0-9]{4}|\\\\[^u]|[^\\\\\"])*\"(\\s*:)?|\\b(true|false|null)\\b|-?\\d+(?:\\.\\d*)?(?:[eE][+-]?\\d+)?)/g, function (match) { // eslint-disable-line prefer-named-capture-group\n                let cls = 'number'\n                if ((/^\"/).test(match)) {\n                    if ((/:$/).test(match)) {\n                        cls = 'key'\n                    } else {\n                        cls = 'string'\n                    }\n                } else if ((/true|false/).test(match)) {\n                    cls = 'boolean'\n                } else if ((/null/).test(match)) {\n                    cls = 'null'\n                }\n                return `<span class=\"${cls}\">${match}</span>`\n            })\n        } catch (e) {\n            json = `Syntax Highlight ERROR: ${e.message}`\n        }\n    }\n    return json\n}\n\n/** msg._ui handling functions */\nconst _ui = new Ui(window, log, syntaxHighlight)\n\n//#endregion --- Module-level utility functions --- //\n\n/** Define and export the Uib class - note that an instance of the class is also exported in the wrap-up\n * @typicalname uibuilder\n */\nexport const Uib = class Uib {\n\n    //#region --- Static variables ---\n    static _meta = {\n        version: version,\n        type: 'module',\n        displayName: 'uibuilder',\n    }\n    //#endregion ---- ---- ---- ----\n\n    //#region private class vars\n\n    // How many times has the loaded instance connected to Socket.IO (detect if not a new load?)\n    connectedNum = 0\n    // event listener callbacks by property name\n    // #events = {}\n    // Socket.IO channel names\n    _ioChannels = { control: 'uiBuilderControl', client: 'uiBuilderClient', server: 'uiBuilder' }\n    /** setInterval holder for pings @type {function|undefined} */\n    #pingInterval\n    // onChange event callbacks\n    #propChangeCallbacks = {}\n    // onTopic event callbacks\n    #msgRecvdByTopicCallbacks = {}\n    // Is Vue available?\n    isVue = false\n    // What version? Set in startup if Vue is loaded. Won't always work\n    vueVersion = undefined\n    /** setInterval id holder for Socket.IO checkConnect\n     * @type {number|null}\n     */\n    #timerid = null\n    // Holds the reference ID for the internal msg change event handler so that it can be cancelled\n    #MsgHandler\n    // Placeholder for io.socket - can't make a # var until # fns allowed in all browsers\n    _socket\n    // Placeholder for an observer that watches the whole DOM for changes - can't make a # var until # fns allowed in all browsers\n    _htmlObserver\n    // Has showMsg been turned on?\n    #isShowMsg = false\n    // Has showStatus been turned on?\n    #isShowStatus = false\n    // If true, URL hash changes send msg back to node-red. Controlled by watchUrlHash()\n    #sendUrlHash = false\n    // Externally accessible command functions (NB: Case must match) - remember to update _uibCommand for new commands\n    #extCommands = [\n        'elementExists', 'get', 'getManagedVarList', 'getWatchedVars', 'htmlSend', 'include',\n        'navigate', 'scrollTo', 'set', 'showMsg', 'showStatus', 'uiGet', 'uiWatch', 'watchUrlHash',\n    ]\n\n    /** @type {{[key: string]: string}} Managed uibuilder variables */\n    #managedVars = {}\n\n    // What status variables to show via showStatus()\n    #showStatus = {\n        online: { 'var': 'online', 'label': 'Online?', 'description': 'Is the browser online?', },\n        ioConnected: { 'var': 'ioConnected', 'label': 'Socket.IO connected?', 'description': 'Is Socket.IO connected?', },\n        connectedNum: { 'var': 'connectedNum', 'label': '# reconnections', 'description': 'How many times has Socket.IO had to reconnect since last page load?', },\n\n        clientId: { 'var': 'clientId', 'label': 'Client ID', 'description': 'Static client unique id set in Node-RED. Only changes when browser is restarted.', },\n        tabId: { 'var': 'tabId', 'label': 'Browser tab ID', 'description': 'Static unique id for the browser\\'s current tab', },\n        cookies: { 'var': 'cookies', 'label': 'Cookies', 'description': 'Cookies set in Node-RED', },\n        httpNodeRoot: { 'var': 'httpNodeRoot', 'label': 'httpNodeRoot', 'description': 'From Node-RED\\' settings.js, affects URL\\'s. May be wrong for pages in sub-folders', },\n        pageName: { 'var': 'pageName', 'label': 'Page name', 'description': 'Actual name of this page', },\n\n        ioNamespace: { 'var': 'ioNamespace', 'label': 'SIO namespace', 'description': 'Socket.IO namespace - unique to each uibuilder node instance', },\n        // ioPath: { 'var': 'ioPath', 'label': 'SIO path', 'description': '', }, // no longer needed in the modern client\n        socketError: { 'var': 'socketError', 'label': 'Socket error', 'description': 'If the Socket.IO connection has failed, says why', },\n\n        msgsSent: { 'var': 'msgsSent', 'label': '# msgs sent', 'description': 'How many standard messages have been sent to Node-RED?', },\n        msgsReceived: { 'var': 'msgsReceived', 'label': '# msgs received', 'description': 'How many standard messages have been received from Node-RED?', },\n        msgsSentCtrl: { 'var': 'msgsSentCtrl', 'label': '# control msgs sent', 'description': 'How many control messages have been sent to Node-RED?', },\n        msgsCtrlReceived: { 'var': 'msgsCtrlReceived', 'label': '# control msgs received', 'description': 'How many control messages have been received from Node-RED?', },\n        originator: { 'var': 'originator', 'label': 'Node Originator', 'description': 'If the last msg from Node-RED was from a `uib-sender` node, this will be its node id so that messasges can be returned to it', },\n        topic: { 'var': 'topic', 'label': 'Default topic', 'description': 'Optional default topic to be included in outgoing standard messages', },\n\n        started: { 'var': 'started', 'label': 'Has uibuilder client started?', 'description': 'Whether `uibuilder.start()` ran successfully. This should self-run and should not need to be run manually', },\n        version: { 'var': 'version', 'label': 'uibuilder client version', 'description': 'The version of the loaded uibuilder client library', },\n        serverTimeOffset: { 'var': 'serverTimeOffset', 'label': 'Server time offset (Hrs)', 'description': 'The number of hours difference between the Node-red server and the client', },\n    }\n\n    // Track ui observers (see uiWatch)\n    #uiObservers = {}\n\n    //#endregion\n\n    //#region public class vars\n\n    // TODO Move to proper getters\n    //#region ---- Externally read-only (via .get method) ---- //\n    // version - moved to _meta\n    /** Client ID set by uibuilder on connect */\n    clientId = ''\n    /** The collection of cookies provided by uibuilder */\n    cookies = {}\n    /** Copy of last control msg object received from sever */\n    ctrlMsg = {}\n    /** Is Socket.IO client connected to the server? */\n    ioConnected = false\n    // Is the browser tab containing this page visible or not?\n    isVisible = false\n    // Remember the last page (re)load/navigation type: navigate, reload, back_forward, prerender\n    lastNavType = ''\n    /** Last std msg received from Node-RED */\n    msg = {}\n    /** number of messages sent to server since page load */\n    msgsSent = 0\n    /** number of messages received from server since page load */\n    msgsReceived = 0\n    /** number of control messages sent to server since page load */\n    msgsSentCtrl = 0\n    /** number of control messages received from server since page load */\n    msgsCtrlReceived = 0\n    /** Is the client online or offline? */\n    online = navigator.onLine\n    /** last control msg object sent via uibuilder.send() @since v2.0.0-dev3 */\n    sentCtrlMsg = {}\n    /** last std msg object sent via uibuilder.send() */\n    sentMsg = {}\n    /** placeholder to track time offset from server, see fn socket.on(ioChannels.server ...) */\n    serverTimeOffset = null\n    /** placeholder for a socket error message */\n    socketError = null\n    // tab identifier from session storage\n    tabId = ''\n    // Actual name of current page (set in constructor)\n    pageName = null\n    // Is the DOMPurify library loaded? Updated in start()\n    purify = false\n    // Is the Markdown-IT library loaded? Updated in start()\n    markdown = false\n    // Current URL hash. Initial set is done from start->watchHashChanges via a set to make it watched\n    urlHash = location.hash\n    //#endregion ---- ---- ---- ---- //\n\n    // TODO Move to proper getters/setters\n    //#region ---- Externally Writable (via .set method, read via .get method) ---- //\n    /** Default originator node id - empty string by default\n     * @type {string}\n     */\n    originator = ''\n    /** Default topic - used by send if set and no topic provided\n     * @type {(string|undefined)}\n     */\n    topic = undefined\n    //#endregion ---- ---- ---- ---- //\n\n    //#region ---- These are unlikely to be needed externally: ----\n    autoSendReady = true\n    httpNodeRoot = '' // Node-RED setting (via cookie)\n    ioNamespace = ''\n    ioPath = ''\n    retryFactor = 1.5       // starting delay factor for subsequent reconnect attempts\n    retryMs = 2000          // starting retry ms period for manual socket reconnections workaround\n    storePrefix = 'uib_'    // Prefix for all uib-related localStorage\n    started = false\n    // NOTE: These can only change when a client (re)connects\n    socketOptions = {\n        path: this.ioPath,\n        transports: ['polling', 'websocket'],\n        // Using callback so that they are updated automatically on (re)connect\n        // Only put things in here that will be valid for a websocket connected session\n        auth: (cb) => {\n            cb({ // eslint-disable-line n/no-callback-literal\n                clientVersion: version,\n                clientId: this.clientId,\n                pathName: window.location.pathname,\n                urlParams: Object.fromEntries(new URLSearchParams(location.search)),\n                pageName: this.pageName,\n                tabId: this.tabId,\n                lastNavType: this.lastNavType,\n                connectedNum: ++this.connectedNum,\n                // Used to calculate the diff between the server and client connection timestamps - reported if >1 minute\n                browserConnectTimestamp: (new Date()).toISOString(),\n            })\n        },\n        transportOptions: {\n            // Can only set headers when polling\n            polling: {\n                extraHeaders: {\n                    'x-clientid': `${Uib._meta.displayName}; ${Uib._meta.type}; ${Uib._meta.version}; ${this.clientId}`,\n                }\n            },\n        },\n    }\n    //#endregion -- not external --\n\n    //#endregion --- End of variables ---\n\n    //#region ------- Getters and Setters ------- //\n\n    // Change logging level dynamically (affects both console. and print.)\n    set logLevel(level) { logLevel = level; console.log('%c\u2757 info%c [logLevel]', `${LOG_STYLES.level} ${LOG_STYLES.info.css}`, `${LOG_STYLES.head} ${LOG_STYLES.info.txtCss}`, `Set to ${level} (${LOG_STYLES.names[level]})`) /* changeLogLevel(level)*/ }\n    get logLevel() { return logLevel }\n\n    get meta() { return Uib._meta }\n\n    /** Function to set uibuilder properties to a new value - works on any property except _* or #*\n     * Also triggers any event listeners.\n     * Example: this.set('msg', {topic:'uibuilder', payload:42});\n     * @param {string} prop Any uibuilder property who's name does not start with a _ or #\n     * @param {*} val The set value of the property or a string declaring that a protected property cannot be changed\n     * @param {boolean} [store] If true, the variable is also saved to the browser localStorage if possible\n     * @param {boolean} [autoload] If true & store is true, on load, uib will try to restore the value from the store automatically\n     * @returns {*} Input value\n     */\n    set(prop, val, store = false, autoload = false) {\n        // Check for excluded properties - we don't want people to set these\n        // if (this.#excludedSet.indexOf(prop) !== -1) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:set', `Cannot use set() on protected property \"${prop}\"`)()\n            return `Cannot use set() on protected property \"${prop}\"`\n        }\n\n        // We must add the var to the uibuilder object\n        this[prop] = val\n\n        // Keep track of all managed variables\n        this.#managedVars[prop] = prop\n\n        // If requested, save to store\n        if (store === true) this.setStore(prop, val, autoload)\n\n        log('trace', 'Uib:set', `prop set - prop: ${prop}, val: `, val, ` store: ${store}, autoload: ${autoload}`)()\n\n        // Trigger this prop's event callbacks (listeners which are set by this.onChange)\n        // this.emit(prop, val)\n\n        // trigger an event on the prop name, pass both the name and value to the event details\n        this._dispatchCustomEvent('uibuilder:propertyChanged', { 'prop': prop, 'value': val, 'store': store, 'autoload': autoload })\n\n        return val\n    }\n\n    /** Function to get the value of a uibuilder property\n     * Example: uibuilder.get('msg')\n     * @param {string} prop The name of the property to get as long as it does not start with a _ or #\n     * @returns {*|undefined} The current value of the property\n     */\n    get(prop) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:get', `Cannot use get() on protected property \"${prop}\"`)()\n            return\n        }\n        if (prop === 'version') return Uib._meta.version\n        if (prop === 'msgsCtrl') return this.msgsCtrlReceived\n        if (prop === 'reconnections') return this.connectedNum\n        if (this[prop] === undefined) {\n            log('warn', 'Uib:get', `get() - property \"${prop}\" is undefined`)()\n        }\n        return this[prop]\n    }\n\n    /** Write to localStorage if possible. console error output if can't write\n     * Also uses this.storePrefix\n     * @example\n     *   uibuilder.setStore('fred', 42)\n     *   console.log(uibuilder.getStore('fred'))\n     * @param {string} id localStorage var name to be used (prefixed with 'uib_')\n     * @param {*} value value to write to localstore\n     * @param {boolean} [autoload] If true, on load, uib will try to restore the value from the store\n     * @returns {boolean} True if succeeded else false\n     */\n    setStore(id, value, autoload = false) {\n        let autoVars = {}\n        if (autoload === true) {\n            try {\n                autoVars = this.getStore('_uibAutoloadVars') || {}\n            } catch (e) {}\n        }\n        if (typeof value === 'object') {\n            try {\n                value = JSON.stringify(value)\n            } catch (e) {\n                log('error', 'Uib:setStore', 'Cannot stringify object, not storing. ', e)()\n                return false\n            }\n        }\n        try {\n            localStorage.setItem(this.storePrefix + id, value)\n            if (autoload) {\n                autoVars[id] = id\n                try {\n                    localStorage.setItem(this.storePrefix + '_uibAutoloadVars', JSON.stringify(autoVars))\n                } catch (e) {\n                    log('error', 'Uib:setStore', 'Cannot save autoload list. ', e)()\n                }\n            }\n            this._dispatchCustomEvent('uibuilder:propertyStored', { 'prop': id, 'value': value, 'autoload': autoload })\n            return true\n        } catch (e) {\n            log('error', 'Uib:setStore', 'Cannot write to localStorage. ', e)()\n            return false\n        }\n    } // --- end of setStore --- //\n\n    /** Attempt to get and re-hydrate a key value from localStorage\n     * Note that all uib storage is automatically prefixed using this.storePrefix\n     * @param {*} id The key of the value to attempt to retrieve\n     * @returns {*|null|undefined} The re-hydrated value of the key or null if key not found, undefined on error\n     */\n    getStore(id) {\n        try {\n            // @ts-ignore\n            return JSON.parse(localStorage.getItem(this.storePrefix + id))\n        } catch (e) { }\n        try {\n            return localStorage.getItem(this.storePrefix + id)\n        } catch (e) {\n            return undefined\n        }\n    }\n\n    /** Remove a given id from the uib keys in localStorage\n     * @param {*} id The key to remove\n     */\n    removeStore(id) {\n        try {\n            localStorage.removeItem(this.storePrefix + id)\n        } catch (e) { }\n    }\n\n    /** Returns a list of uibuilder properties (variables) that can be watched with onChange\n     * @returns {{[key: string]: string}} List of uibuilder managed variables\n     */\n    getManagedVarList() {\n        return this.#managedVars\n    }\n\n    getWatchedVars() {\n        return Object.keys(this.#propChangeCallbacks)\n    }\n\n    //#endregion ------- -------- ------- //\n\n    //#region ------- Our own event handling system ---------- //\n\n    // TODO Add option to send event details back to Node-RED as uib ctrl msg\n    /** Standard fn to create a custom event with details & dispatch it\n     * @param {string} title The event name\n     * @param {*} details Any details to pass to event output\n     */\n    _dispatchCustomEvent(title, details) {\n        const event = new CustomEvent(title, { detail: details })\n        document.dispatchEvent(event)\n    }\n\n    // See the this.#propChangeCallbacks & msgRecvdByTopicCallbacks private vars\n\n    /** Register on-change event listeners for uibuilder tracked properties\n     * Make it possible to register a function that will be run when the property changes.\n     * Note that you can create listeners for non-existant properties\n     * @example: uibuilder.onChange('msg', (msg) => { console.log('uibuilder.msg changed! It is now: ', msg) })\n     *\n     * @param {string} prop The property of uibuilder that we want to monitor\n     * @param {Function} callback The function that will run when the property changes, parameter is the new value of the property after change\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelChange if you need to remove a listener\n     */\n    onChange(prop, callback) {\n        // Note: Property does not have to exist yet\n\n        // console.debug(`[Uib:onchange] pushing new callback (event listener) for property: ${prop}`)\n\n        // Create a new array or add to the array of callback functions for the property in the events object\n        // if (this.#events[prop]) {\n        //     this.#events[prop].push(callback)\n        // } else {\n        //     this.#events[prop] = [callback]\n        // }\n\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#propChangeCallbacks[prop]) this.#propChangeCallbacks[prop] = { _nextRef: 1 }\n        else this.#propChangeCallbacks[prop]._nextRef++\n\n        const nextCbRef = this.#propChangeCallbacks[prop]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const propChangeCallback = this.#propChangeCallbacks[prop][nextCbRef] = function propChangeCallback(e) {\n            // If the prop name matches the 1st arg in the onChange fn:\n            if (prop === e.detail.prop) {\n                const value = e.detail.value\n                // console.warn('[Uib:onChange:evt] uibuilder:propertyChanged. ', e.detail)\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(value, value)\n            }\n        }\n\n        document.addEventListener('uibuilder:propertyChanged', propChangeCallback)\n\n        return nextCbRef\n    } // ---- End of onChange() ---- //\n\n    cancelChange(prop, cbRef) {\n        document.removeEventListener('uibuilder:propertyChanged', this.#propChangeCallbacks[prop][cbRef])\n        delete this.#propChangeCallbacks[prop][cbRef]\n        // this.#propChangeCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Register a change callback for a specific msg.topic\n     * Similar to onChange but more convenient if needing to differentiate by msg.topic.\n     * @example: let otRef = uibuilder.onTopic('mytopic', function(){ console.log('Received a msg with msg.topic=`mytopic`. msg: ', this) })\n     * To cancel a change listener: uibuilder.cancelTopic('mytopic', otRef)\n     *\n     * @param {string} topic The msg.topic we want to listen for\n     * @param {Function} callback The function that will run when an appropriate msg is received. `this` inside the callback as well as the cb's single argument is the received msg.\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelTopic if you need to remove a listener\n     */\n    onTopic(topic, callback) {\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#msgRecvdByTopicCallbacks[topic]) this.#msgRecvdByTopicCallbacks[topic] = { _nextRef: 1 }\n        else this.#msgRecvdByTopicCallbacks[topic]._nextRef++\n\n        const nextCbRef = this.#msgRecvdByTopicCallbacks[topic]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const msgRecvdEvtCallback = this.#msgRecvdByTopicCallbacks[topic][nextCbRef] = function msgRecvdEvtCallback(e) {\n            const msg = e.detail\n            // console.log('[Uib:onTopic:evt] uibuilder:stdMsgReceived where topic matches. ', e.detail)\n            if (msg.topic === topic) {\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(msg, msg)\n            }\n        }\n\n        document.addEventListener('uibuilder:stdMsgReceived', msgRecvdEvtCallback)\n\n        return nextCbRef\n    }\n\n    cancelTopic(topic, cbRef) {\n        document.removeEventListener('uibuilder:stdMsgReceived', this.#msgRecvdByTopicCallbacks[topic][cbRef])\n        delete this.#msgRecvdByTopicCallbacks[topic][cbRef]\n        // this.#msgRecvdCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Trigger event listener for a given property\n     * Called when uibuilder.set is used\n     *\n     * @param {*} prop The property for which to run the callback functions\n     * arguments: Additional arguments contain the value to pass to the event callback (e.g. newValue)\n     */\n    // emit(prop) {\n    //     var evt = this.#events[prop]\n    //     if (!evt) {\n    //         return\n    //     }\n    //     var args = Array.prototype.slice.call(arguments, 1)\n    //     for (var i = 0; i < evt.length; i++) {\n    //         evt[i].apply(this, args)\n    //     }\n    //     log('trace', 'Uib:emit', `${evt.length} listeners run for prop ${prop} `)()\n    // }\n\n    /** Forcibly removes all event listeners from the events array\n     * Use if you need to re-initialise the environment\n     */\n    // clearEventListeners() {\n    //     this.#events = []\n    // } // ---- End of clearEventListeners() ---- //\n\n    /** Clear a single property event listeners\n     * @param {string} prop The property of uibuilder for which we want to clear the event listener\n     */\n    // clearListener(prop) {\n    //     if (this.#events[prop]) delete this.#events[prop]\n    // }\n\n    //#endregion ---------- End of event handling system ---------- //\n\n    //#region ------- General Utility Functions -------- //\n\n    /** Check supplied msg from server for a timestamp - if received, work out & store difference to browser time\n     * @param {object} receivedMsg A message object recieved from Node-RED\n     * @returns {void} Updates self.serverTimeOffset if different to previous value\n     */\n    _checkTimestamp(receivedMsg) {\n        if (Object.prototype.hasOwnProperty.call(receivedMsg, 'serverTimestamp')) {\n            const serverTimestamp = new Date(receivedMsg.serverTimestamp)\n            // @ts-ignore\n            const offset = Math.round(((new Date()) - serverTimestamp) / 3600000) // in ms /3.6m to get hours\n            if (offset !== this.serverTimeOffset) {\n                log('trace', `Uib:checkTimestamp:${this._ioChannels.server} (server)`, `Offset changed to: ${offset} from: ${this.serverTimeOffset}`)()\n                this.set('serverTimeOffset', offset)\n            }\n        }\n    }\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {*} Selected HTML element or null\n     */\n    $(cssSelector) {\n        /** @type {*} Some kind of HTML element */\n        let el = document.querySelector(cssSelector)\n\n        if (!el) {\n            log(1, 'Uib:$', `No element found for CSS selector ${cssSelector}`)()\n            return null\n        }\n\n        if ( el.nodeName === 'TEMPLATE' ) {\n            el = el.content.firstElementChild\n            if (!el) {\n                log(0, 'Uib:$', `Template selected for CSS selector ${cssSelector} but it is empty`)()\n                return null\n            }\n        }\n\n        return el\n    }\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {*} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {Array} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$(cssSelector) {\n        return Array.from(document.querySelectorAll(cssSelector))\n    }\n\n    /** Set the default originator. Set to '' to ignore. Used with uib-sender.\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    setOriginator(originator = '') {\n        this.set('originator', originator)\n    } // ---- End of setOriginator ---- //\n\n    /** HTTP Ping/Keep-alive - makes a call back to uibuilder's ExpressJS server and receives a 204 response\n     * Can be used to keep sessions alive.\n     * @example\n     *   uibuilder.setPing(2000) // repeat every 2 sec. Re-issue with ping(0) to turn off repeat.\n     *   uibuilder.onChange('ping', function(data) {\n     *      console.log('pinger', data)\n     *   })\n     * @param {number} ms Repeat interval in ms\n     */\n    setPing(ms = 0) {\n        const oReq = new XMLHttpRequest()\n        oReq.addEventListener('load', () => {\n            const headers = (oReq.getAllResponseHeaders()).split('\\r\\n')\n            const elapsedTime = Number(new Date()) - Number((oReq.responseURL.split('='))[1])\n            this.set('ping', {\n                success: !!((oReq.status === 201) || (oReq.status === 204)), // true if one of the listed codes else false\n                status: oReq.status,\n                headers: headers,\n                url: oReq.responseURL,\n                elapsedTime: elapsedTime,\n            })\n        })\n\n        if (this.#pingInterval) {\n            clearInterval(this.#pingInterval)\n            this.#pingInterval = undefined\n        }\n\n        oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n        oReq.send()\n\n        if (ms > 0) {\n            this.#pingInterval = setInterval(() => {\n                oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n                oReq.send()\n            }, ms)\n        }\n    } // ---- End of ping ---- //\n\n    log() {\n        log(...arguments)()\n    }\n\n    /** Convert JSON to Syntax Highlighted HTML\n     * @param {object} json A JSON/JavaScript Object\n     * @returns {html} Object reformatted as highlighted HTML\n     */\n    syntaxHighlight(json) {\n        return syntaxHighlight(json)\n    } // --- End of syntaxHighlight --- //\n\n    /** Copies a uibuilder variable to the browser clipboard\n     * @param {string} varToCopy The name of the uibuilder variable to copy to the clipboard\n     */\n    copyToClipboard(varToCopy) {\n        let data = ''\n        try {\n            console.log(this.get(varToCopy), JSON.stringify(this.get(varToCopy)))\n            data = JSON.stringify(this.get(varToCopy))\n        } catch (e) {\n            log('error', 'copyToClipboard', `Could not copy \"${varToCopy}\" to clipboard.`, e.message)()\n        }\n        navigator.clipboard.writeText(data)\n    } // --- End of copyToClipboard --- //\n\n    /** DEPRECATED FOR NOW - wasn't working properly.\n     * Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.\n     * Requires IntersectionObserver (available to all mainstream browsers from early 2019)\n     * Automatically sends a msg back to Node-RED.\n     * Requires the element to already exist.\n     */\n    elementIsVisible() {\n        const info = 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'\n        log('error', 'uib:elementIsVisible', info)()\n        this.send({payload: 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'})\n        return false\n    } // --- End of elementIsVisible --- //\n\n    /** Does the chosen CSS Selector currently exist?\n     * Automatically sends a msg back to Node-RED unless turned off.\n     * @param {string} cssSelector Required. CSS Selector to examine for visibility\n     * @param {boolean} [msg] Optional, default=true. If true also sends a message back to Node-RED\n     * @returns {boolean} True if the element exists\n     */\n    elementExists(cssSelector, msg = true) {\n        const el = document.querySelector(cssSelector)\n\n        let exists = false\n        if (el !== null) exists = true\n\n        if (msg === true) {\n            this.send({\n                payload: exists,\n                info: `Element \"${cssSelector}\" ${exists ? 'exists' : 'does not exist'}`\n            })\n        }\n\n        return exists\n    } // --- End of elementExists --- //\n\n    /** Only keep the URL Hash & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return '#' + url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Set up an event listener to watch for hash changes\n     * and set the watchable urlHash variable\n     */\n    _watchHashChanges() {\n        this.set('urlHash', location.hash)\n        window.addEventListener('hashchange', (event) => {\n            this.set('urlHash', location.hash)\n            if (this.#sendUrlHash === true) {\n                this.send({ topic: 'hashChange', payload: location.hash, newHash: this.keepHashFromUrl(event.newURL), oldHash: this.keepHashFromUrl(event.oldURL) })\n            }\n        })\n    }\n\n    /** Returns true/false or a default value for truthy/falsy and other values\n     * @param {string|number|boolean|*} val The value to test\n     * @param {any} deflt Default value to use if the value is not truthy/falsy\n     * @returns {boolean|any} The truth! Or the default\n     */\n    truthy(val, deflt) {\n        let ret\n        if (['on', 'On', 'ON', 'true', 'True', 'TRUE', '1', true, 1].includes(val)) ret = true\n        else if (['off', 'Off', 'OFF', 'false', 'False', 'FALSE', '0', false, 0].includes(val)) ret = false\n        else ret = deflt\n        return ret\n    }\n\n    /** Turn on/off/toggle sending URL hash changes back to Node-RED\n     * @param {string|number|boolean|undefined} [toggle] Optional on/off/etc\n     * @returns {boolean} True if we will send a msg to Node-RED on a hash change\n     */\n    watchUrlHash(toggle) {\n        this.#sendUrlHash = this.truthy(toggle, this.#sendUrlHash !== true)\n        return this.#sendUrlHash\n    }\n\n    /** Navigate to a new page or a new route (hash)\n     * @param {string} url URL to navigate to. Can be absolute or relative (to current page) or just a hash for a route change\n     * @returns {Location} The new window.location string\n     */\n    navigate(url) {\n        if (url) window.location.href = url\n        return window.location\n    }\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- UI handlers --------- //\n\n    //#region -- Direct to _ui --\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        _ui.ui(json)\n    }\n\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        _ui.replaceSlot(el, component)\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        _ui.replaceSlotMarkdown(el, component)\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        return _ui.convertMarkdown(mdText)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        return _ui.sanitiseHTML(html)\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        _ui.loadScriptSrc(url)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        _ui.loadStyleSrc(url)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        _ui.loadScriptTxt(textFn)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        _ui.loadStyleTxt(textFn)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) {\n        _ui.showDialog(type, ui, msg)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        _ui.loadui(url)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        return _ui.uiGet(cssSelector, propName)\n    }\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     */\n    async include(url, uiOptions) {\n        _ui.include(url, uiOptions)\n    }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} component Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, component) {\n        _ui.uiEnhanceElement(el, component)\n    }\n\n    //#endregion -- direct to _ui --\n\n    /** * Show/hide a display card on the end of the visible HTML that will dynamically display the last incoming msg from Node-RED\n     * The card has the id `uib_last_msg`. Updates are done from a listener set up in the start function.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showMsg(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowMsg\n        this.#isShowMsg = showHide\n        let slot = 'Waiting for a message from Node-RED'\n\n        if (this.msg && Object.keys(this.msg).length > 0) {\n            slot = this.syntaxHighlight(this.msg)\n        }\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_last_msg_wrap',\n                ],\n            })\n        } else {\n            _ui._uiReplace({\n                components: [\n                    {\n                        type: 'div',\n                        id: 'uib_last_msg_wrap',\n                        parent: parent,\n                        attributes: {\n                            title: 'Last message from Node-RED',\n                        },\n                        components: [\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.copyToClipboard(\"msg\")',\n                                    class: 'compact',\n                                    style: 'right:3em;',\n                                },\n                                slot: '\uD83D\uDCCB',\n                            },\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.showMsg()',\n                                    class: 'compact',\n                                    style: 'right:.5em;',\n                                },\n                                slot: '\u26D4',\n                            },\n                            {\n                                type: 'pre',\n                                id: 'uib_last_msg',\n                                // parent: 'uib_last_msg_wrap',\n                                attributes: {\n                                    class: 'syntax-highlight',\n                                },\n                                slot: slot,\n                            },\n                        ],\n                    },\n                ],\n            })\n        }\n\n        return showHide\n    }\n\n    /** Show a browser notification if possible.\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * @example uibuilder.notify( 'My simple message to the user' )\n     * @example uibuilder.notify( {topic: 'My Title', payload: 'My simple message to the user'} )\n     * @example uibuilder.notify( {title: 'My Title', body: 'My simple message to the user'} )\n     * @example // If config.return = true, a promise is returned.\n     * // The resolved promise is only returned if the notification is clicked by the user.\n     * // Can be used to send the response back to Node-RED\n     * uibuilder.notify(notifyConfig).then( res => uibuilder.eventSend(res) )\n     * @ref https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config data or simple message string\n     * @returns {Promise<Event>|null} A promise that resolves to the click event or null\n     */\n    notify(config) {\n        if (config.return) return _ui.notification(config)\n\n        _ui.notification(config)\n            .then( res => { // eslint-disable-line promise/always-return\n                log('info', 'Uib:notification', 'Notification completed event', res)()\n                // if (config.return) return res\n            })\n            .catch( err => {\n                log('error', 'Uib:notification', 'Notification error event', err)()\n            })\n        return null\n    }\n\n    /** Scroll the page\n     * https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollIntoView\n     * @param {string} [cssSelector] Optional. If not set, scrolls to top of page.\n     * @param {{block:(string|undefined),inline:(string|undefined),behavior:(string|undefined)}} [opts] Optional. DOM scrollIntoView options\n     * @returns {boolean} True if element was found, false otherwise\n     */\n    scrollTo(cssSelector, opts) {\n        // @ts-ignore\n        if (!opts) opts = {}\n        if (!cssSelector || cssSelector === 'top'  || cssSelector === 'start') cssSelector = 'body'\n        else if (cssSelector === 'bottom' || cssSelector === 'end') {\n            cssSelector = 'body'\n            opts.block = 'end'\n        }\n        const el = this.$(cssSelector)\n        if (el) {\n            el.scrollIntoView(opts)\n            return true\n        }\n        return false\n    }\n\n    /** Show/hide a display card on the end of the visible HTML that will dynamically display the current status of the uibuilder client\n     * The card has the id `uib_status`.\n     * The display is updated by an event listener created in the class constructor.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showStatus(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowStatus\n        this.#isShowStatus = showHide\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_status',\n                ],\n            })\n            return showHide\n        }\n\n        const root = {\n            components: [\n                {\n                    type: 'div',\n                    id: 'uib_status',\n                    parent: parent,\n                    attributes: {\n                        title: 'Current status of the uibuilder client',\n                        class: 'text-smaller',\n                    },\n                    components: [\n                        {\n                            'type': 'table',\n                            'components': [\n                                {\n                                    'type': 'tbody',\n                                    'components': []\n                                }\n                            ]\n                        }\n                    ]\n                }\n            ]\n        }\n        const details = root.components[0].components[0].components[0].components\n\n        Object.values(this.#showStatus).forEach( entry => {\n            details.push({\n                'type': 'tr',\n                'attributes': {\n                    title: entry.description,\n                },\n                'components': [\n                    {\n                        'type': 'th',\n                        'slot': entry.label,\n                    },\n                    {\n                        'type': 'td',\n                        'attributes': {\n                            'data-varType': entry.var,\n                        },\n                        'slot': entry.var === 'version' ? Uib._meta.version : JSON.stringify(this[entry.var]),\n                    }\n                ],\n            })\n        })\n\n        _ui._uiReplace(root)\n\n        return showHide\n    }\n\n    /** Use the Mutation Observer browser API to watch for changes to a single element on the page.\n     * OMG! It is sooo hard to turn the data into something that successfully serialises so it can be sent back to Node-RED!\n     * NB: Each cssSelector creates a unique watcher. Sending the same selector overwrites the previous one.\n     * @param {string} cssSelector A CSS Selector that selects the element to watch for changes\n     * @param {boolean|\"toggle\"} [startStop] true=start watching the DOM, false=stop. Default='toggle'\n     * @param {boolean} [send] true=Send changes to Node-RED, false=Don't send. Default=true\n     * @param {boolean} [showLog] true=Output changes to log, false=stop. Default=true. Log level is 2 (Info)\n     * @returns {boolean} True if the watch is on, false otherwise\n     */\n    uiWatch(cssSelector, startStop = 'toggle', send = true, showLog = true) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.querySelector(cssSelector)\n        if (!targetNode) {\n            log('warn', 'uibuilder.module.js:uiWatch', `CSS Selector '${cssSelector}' not found.`)()\n            return false\n        }\n\n        if (startStop === 'toggle' || startStop === undefined || startStop === null) {\n            if (this.#uiObservers[cssSelector]) startStop = false\n            else startStop = true\n        }\n\n        // Need a ref to the Uib this\n        const that = this\n\n        if (startStop === true) {\n            // Create an observer instance\n            this.#uiObservers[cssSelector] = new MutationObserver( function( mutationList /* , observer */ ) {\n                const out = []\n\n                mutationList.forEach( mu => {\n                    // console.log({ mu })\n                    const oMu = {\n                        type: mu.type,\n                        oldValue: mu.oldValue !== null ? mu.oldValue : undefined,\n                    }\n\n                    if (mu.addedNodes.length > 0) {\n                        oMu.addedNodes = []\n                        mu.addedNodes.forEach( (an, i) => {\n                            oMu.addedNodes.push(_ui.nodeGet(mu.addedNodes[i]))\n                        })\n                    }\n\n                    if (mu.removedNodes.length > 0) {\n                        oMu.removedNodes = []\n                        mu.removedNodes.forEach( (an, i) => {\n                            oMu.removedNodes.push(_ui.nodeGet(mu.removedNodes[i]))\n                        })\n                    }\n\n                    if ( mu.type === 'attributes' ) {\n                        oMu.attributeName = mu.attributeName\n                        // @ts-ignore\n                        oMu.newValue = mu.target.attributes[mu.attributeName].value\n                    }\n\n                    out.push(oMu)\n                })\n\n                // Custom event\n                that._dispatchCustomEvent('uibuilder:domChange', out)\n                // Send a msg back to node-red\n                if (send === true) {\n                    that.send({\n                        _ui: {\n                            cssSelector: cssSelector,\n                            uiChanges: out\n                        },\n                        topic: that.topic || `DOM Changes for '${cssSelector}'`,\n                    })\n                }\n                // Log to info\n                if (showLog === true) {\n                    log('info', 'uibuilder.module.js:uiWatch', `DOM Changes for '${cssSelector}'`, { uiChanges: out }, { mutationList })()\n                }\n            } )\n\n            // Start observing the target node for configured mutations\n            this.#uiObservers[cssSelector].observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:uiWatch', `Started Watching DOM changes for '${cssSelector}'`)()\n        } else {\n            this.#uiObservers[cssSelector].disconnect()\n            delete this.#uiObservers[cssSelector]\n            log('trace', 'uibuilder.module.js:uiWatch', `Stopped Watching DOM changes for '${cssSelector}'`)()\n        }\n\n        return startStop\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- HTML cache and DOM watch --------- //\n\n    /** Clear the saved DOM from localStorage */\n    clearHtmlCache() {\n        this.removeStore('htmlCache')\n        log('trace', 'uibuilder.module.js:clearHtmlCache', 'HTML cache cleared')()\n    }\n\n    /** Restore the complete DOM (the whole web page) from browser localStorage if available */\n    restoreHtmlFromCache() {\n        // Is the html cached? If so, restore it\n        const htmlCache = this.getStore('htmlCache')\n        if (htmlCache) {\n            const targetNode = document.getElementsByTagName('html')[0]\n            // Restore the entire HTML\n            targetNode.innerHTML = htmlCache\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'Restored HTML from cache')()\n        } else {\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'No cache to restore')()\n        }\n    }\n\n    /** Save the current DOM state to browser localStorage.\n     * localStorage is persistent and so can be recovered even after a browser restart.\n     */\n    saveHtmlCache() {\n        // Save the updated entire HTML in localStorage\n        this.setStore('htmlCache', document.documentElement.innerHTML)\n    }\n\n    /** Use the Mutation Observer browser API to watch for and save changes to the HTML\n     * Once the observer is created, it will be reused.\n     * Sending true or undefined will turn on the observer, false turns it off.\n     * saveHtmlCache is called whenever anything changes in the dom. This allows\n     * users to call restoreHtmlFromCache() on page load if desired to completely reload\n     * to the last saved state.\n     * @param {boolean} startStop true=start watching the DOM, false=stop\n     */\n    watchDom(startStop) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.documentElement\n\n        // Need a ref to the Uib this\n        const that = this\n\n        // Create an observer instance\n        if (!this._htmlObserver) {\n            this._htmlObserver = new MutationObserver( function(/* mutationList, observer */) {\n                // We don't need to know the details - so kill off any outstanding mutation records\n                this.takeRecords()\n                // Save the updated entire HTML in localStorage\n                that.saveHtmlCache()\n            } )\n        }\n\n        if (startStop === true || startStop === undefined) {\n            // Start observing the target node for configured mutations\n            this._htmlObserver.observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:watchDom', 'Started Watching and saving DOM changes')()\n        } else {\n            this._htmlObserver.disconnect()\n            log('trace', 'uibuilder.module.js:watchDom', 'Stopped Watching and saving DOM changes')()\n        }\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- Message Handling (To/From Node-RED) -------- //\n\n    /** Internal send fn. Send a standard or control msg back to Node-RED via Socket.IO\n     * NR will generally expect the msg to contain a payload topic\n     * @param {object} msgToSend The msg object to send.\n     * @param {string} [channel=uiBuilderClient] The Socket.IO channel to use, must be in self.ioChannels or it will be ignored\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    _send(msgToSend, channel, originator = '') {\n        if (channel === null || channel === undefined) channel = this._ioChannels.client\n\n        // Make sure msgToSend is an object\n        if (channel === this._ioChannels.client) {\n            msgToSend = makeMeAnObject(msgToSend, 'payload')\n        } else if (channel === this._ioChannels.control) {\n            msgToSend = makeMeAnObject(msgToSend, 'uibuilderCtrl')\n            if (!Object.prototype.hasOwnProperty.call(msgToSend, 'uibuilderCtrl')) {\n                msgToSend.uibuilderCtrl = 'manual send'\n            }\n            // help remember where this came from as ctrl msgs can come from server or client\n            msgToSend.from = 'client'\n        }\n\n        /** since 2020-01-02 Added _socketId which should be the same as the _socketId on the server */\n        msgToSend._socketId = this._socket.id\n\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n\n        // Add the originator metadata if required\n        if (originator === '' && this.originator !== '') originator = this.originator\n        if (originator !== '') Object.assign(msgToSend, { '_uib': { 'originator': originator } })\n\n        // If the msg does not have a topic - see if we want to add one\n        if ( !Object.prototype.hasOwnProperty.call(msgToSend, 'topic') ) {\n            // From the default (`uibuilder.set('topic', 'some topic')`)\n            if (this.topic !== undefined && this.topic !== '') msgToSend.topic = this.topic\n            else {\n                // Did the last inbound msg have a topic?\n                if ( Object.prototype.hasOwnProperty.call(this, 'msg') && Object.prototype.hasOwnProperty.call(this.msg, 'topic') ) {\n                    msgToSend.topic = this.msg.topic\n                }\n            }\n        }\n\n        // If a standard send & _ui property exists, make sure to add _ui.from = 'client'\n        if (msgToSend._ui) msgToSend._ui.from = 'client'\n\n        // Track how many messages have been sent & last msg sent\n        let numMsgs\n        if (channel === this._ioChannels.client) {\n            this.set('sentMsg', msgToSend)\n            numMsgs = this.set('msgsSent', ++this.msgsSent)\n        } else if (channel === this._ioChannels.control) {\n            this.set('sentCtrlMsg', msgToSend)\n            numMsgs = this.set('msgsSentCtrl', ++this.msgsSentCtrl)\n        }\n        log('trace', 'Uib:_send', ` Channel '${channel}'. Sending msg #${numMsgs}`, msgToSend)()\n\n        this._socket.emit(channel, msgToSend)\n    } // --- End of Send Msg Fn --- //\n\n    /** Send a standard message to NR\n     * @example uibuilder.send({payload:'Hello'})\n     * @param {object} msg Message to send\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    send(msg, originator = '') {\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Send a control msg to NR\n     * @param {object} msg Message to send\n     */\n    sendCtrl(msg) {\n        this._send(msg, this._ioChannels.control)\n    }\n\n    /** Easily send a msg back to Node-RED on a DOM event\n     * @example In plain HTML/JavaScript\n     *    `<button id=\"button1\" name=\"button 1\" data-fred=\"jim\"></button>`\n     *    $('#button1').onclick = (evt) => {\n     *      uibuilder.eventSend(evt)\n     *    }\n     * @example\n     * In VueJS: `<b-button id=\"myButton1\" @click=\"doEvent\" data-something=\"hello\"></b-button>`\n     * In VueJS methods: `doEvent: uibuilder.eventSend,`\n     *\n     * All `data-` attributes will be passed back to Node-RED,\n     *    use them instead of arguments in the click function.\n     *    All target._ui custom properties are also passed back to Node-RED.\n     *\n     * @param {MouseEvent|any} domevent DOM Event object\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    eventSend(domevent, originator = '') { // eslint-disable-line sonarjs/cognitive-complexity\n        // @ts-ignore Handle case where vue messes up `this`\n        if ( this.$attrs ) {\n            log('error', 'Uib:eventSend', '`this` has been usurped by VueJS. Make sure that you wrap the call in a function: `doEvent: function (event) { uibuilder.eventSend(event) },`' )()\n            return\n        }\n        if (!domevent && !event) {\n            log('warn', 'Uib:eventSend', 'Neither the domevent nor the hidden event properties are set. You probably called this function directly rather than applying to an on click event.' )()\n            return\n        }\n        // Handle no argument, e.g. <button onClick=\"uibuilder.eventSend()\"> - event is a hidden variable when fn used in addEventListener\n        if (!domevent || !domevent.constructor) domevent = event\n\n        // The argument must be a DOM event\n        if ((!domevent.constructor.name.endsWith('Event')) || (!domevent.currentTarget)) {\n            log('warn', 'Uib:eventSend', `ARGUMENT NOT A DOM EVENT - use data attributes not function arguments to pass data. Arg Type: ${domevent.constructor.name}`, domevent)()\n            return\n        }\n\n        // Prevent default event action\n        domevent.preventDefault()\n\n        // The target element\n        const target = domevent.currentTarget\n\n        // Get target properties - only shows custom props not element default ones\n        const props = {}\n        Object.keys(target).forEach( key => {\n            if (key.startsWith('_')) return // Exclude private\n            props[key] = target[key]\n        })\n\n        // Attempt to get target attributs - can fail for certain target types\n        const ignoreAttribs = ['class', 'id', 'name']\n        let attribs\n        try {\n            attribs = Object.assign({},\n                ...Array.from(target.attributes,\n                    ( { name, value } ) => {\n                        if ( !ignoreAttribs.includes(name) ) {\n                            return ({ [name]: value })\n                        }\n                        return undefined\n                    }\n                )\n            )\n        } catch (e) {}\n\n        // If target embedded in a form, include the form data\n        let form\n        const frmVals = []\n        if ( target.form ) {\n            form = {}\n            form.valid = target.form.checkValidity()\n            Object.values(target.form).forEach( (frmEl, i) => {\n                const id = frmEl.id !== '' ? frmEl.id : (frmEl.name !== '' ? frmEl.name : `${i}-${frmEl.type}`)\n\n                // We must have both an element id (we may have forced one above) AND\n                // the element type MUST be not undefined - to allow for the extra properties added by frameworks such as Svelte\n                if (id !== '' && frmEl.type) {\n                    // Stupid HTML doesn't use value attrib for checkboxes. So override if value is set to default\n                    if ('checked' in frmEl && frmEl.value === 'on') frmEl.value = frmEl.checked.toString()\n\n                    frmVals.push( { key: id, val: frmEl.value } ) // simplified for addition to msg.payload\n\n                    form[id] = {\n                        'id': frmEl.id,\n                        'name': frmEl.name,\n                        'value': frmEl.value,\n                        'valid': frmEl.checkValidity(),\n                        'type': frmEl.type,\n                    }\n\n                    if (form[id].valid === false) {\n                        const v = frmEl.validity\n                        form[id].validity = {\n                            badInput: v.badInput === true ? v.badInput : undefined,\n                            customError: v.customError === true ? v.customError : undefined,\n                            patternMismatch: v.patternMismatch === true ? v.patternMismatch : undefined,\n                            rangeOverflow: v.rangeOverflow === true ? v.rangeOverflow : undefined,\n                            rangeUnderflow: v.rangeUnderflow === true ? v.rangeUnderflow : undefined,\n                            stepMismatch: v.stepMismatch === true ? v.stepMismatch : undefined,\n                            tooLong: v.tooLong === true ? v.tooLong : undefined,\n                            tooShort: v.tooShort === true ? v.tooShort : undefined,\n                            typeMismatch: v.typeMismatch === true ? v.typeMismatch : undefined,\n                            valueMissing: v.valueMissing === true ? v.valueMissing : undefined,\n                        }\n                    }\n\n                    if (frmEl.dataset) form[id].data = frmEl.dataset\n                }\n            })\n        }\n\n        // Check for CSS Classes\n        let classes\n        try {\n            classes = Array.from(target.classList)\n        } catch (e) {}\n\n        // Each `data-xxxx` attribute is added as a property\n        let payload = { ...target.dataset }\n\n        // Handle Notification events\n        let nprops\n        if ( Object.prototype.toString.call(target) === '[object Notification]') {\n            // Fixed payload for convenience\n            payload = `notification-${target.userAction}`\n            // Capture the notification properties\n            nprops = {\n                // userAction: target.userAction, // uib custom prop: click, close or error\n                actions: target.actions,\n                badge: target.badge,\n                body: target.body,\n                data: target.data,\n                dir: target.dir,\n                icon: target.icon,\n                image: target.image,\n                lang: target.lang,\n                renotify: target.renotify,\n                requireInteraction: target.requireInteraction,\n                silent: target.silent,\n                tag: target.tag,\n                timestamp: target.timestamp,\n                title: target.title,\n                vibrate: target.vibrate,\n            }\n        }\n        // console.log(Object.prototype.toString.call(target))\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            // - this may be an empty Object if no data attributes defined\n            payload: payload,\n\n            _ui: {\n                type: 'eventSend',\n                id: target.id !== '' ? target.id : undefined,\n                name: target.name !== '' ? target.name : undefined,\n                slotText: target.textContent ? target.textContent.substring(0, 255) : undefined,\n\n                form: form,\n                props: props,\n                attribs: attribs,\n                classes: classes,\n\n                notification: nprops,\n\n                event: domevent.type,\n                altKey: domevent.altKey,\n                ctrlKey: domevent.ctrlKey,\n                shiftKey: domevent.shiftKey,\n                metaKey: domevent.metaKey,\n\n                pointerType: domevent.pointerType,\n                nodeName: target.nodeName,\n\n                clientId: this.clientId,\n                pageName: this.pageName,\n                tabId: this.tabId,\n            }\n        }\n\n        if (frmVals.length > 0) {\n            frmVals.forEach( entry => {\n                msg.payload[entry.key] = entry.val\n            })\n        }\n\n        if (domevent.type === 'change') {\n            // Checkboxes don't have a value!!\n            msg._ui.newValue = msg.payload.value = 'checked' in target ? target.checked : domevent.target.value\n        }\n\n        log('trace', 'Uib:eventSend', 'Sending msg to Node-RED', msg)()\n        if (target.dataset && target.dataset.length === 0) log('warn', 'Uib:eventSend', 'No payload in msg. data-* attributes should be used.')()\n\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Easily send the entire DOM/HTML msg back to Node-RED\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     * @param {boolean} [send] If true (default) directly send response to Node-RED. Is false when calling from Node-RED as a command.\n     * @returns {string} The HTML as a string\n     */\n    htmlSend(originator = '', send = true) {\n        const out = `<!doctype html>\\n${document.documentElement.outerHTML}`\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            payload: out,\n            length: out.length,\n            topic: this.topic,\n        }\n\n        log('trace', 'Uib:htmlSend', 'Sending full HTML to Node-RED', msg)()\n\n        if (send === true) this._send(msg, this._ioChannels.client, originator)\n        return out\n    }\n\n    /** Process msg._uib.command - Remember to update #extCommands with new allowed commands\n     * @param {object} msg Msg from Node-RED containing a msg._uib object\n     */\n    _uibCommand(msg) {\n        if (!msg._uib || !msg._uib.command) {\n            log('error', 'uibuilder:_uibCommand', 'Invalid command message received', { msg })()\n            msg.payload = msg.error = 'Invalid command message received'\n            this.send(msg)\n            return\n        }\n        const cmd = msg._uib.command\n        // Disallowed command request outputs error and ignores the msg (NB: Case must match)\n        if (!this.#extCommands.includes(cmd.trim())) {\n            log('error', 'Uib:_uibCommand', `Command '${cmd} is not allowed to be called externally`)()\n            return\n        }\n        const prop = msg._uib.prop\n        const value = msg._uib.value\n        const quiet = msg._uib.quiet ?? false\n        let response, info\n\n        // Don't forget to update `#extCommands`, `docs/client-docs/control-from-node-red.md` & `functions.md`\n        switch (cmd) {\n            case 'elementIsVisible': {\n                response = this.elementIsVisible(prop)\n                // info = `Element \"${prop}\" ${response ? 'is visible' : 'is not visible'}`\n                break\n            }\n\n            case 'elementExists': {\n                response = this.elementExists(prop, false)\n                info = `Element \"${prop}\" ${response ? 'exists' : 'does not exist'}`\n                break\n            }\n\n            case 'get': {\n                response = this.get(prop)\n                break\n            }\n\n            case 'getManagedVarList': {\n                if (prop === 'full') response = this.getManagedVarList()\n                else response = Object.values(this.getManagedVarList())\n                break\n            }\n\n            case 'getWatchedVars': {\n                if (prop === 'full') response = this.getWatchedVars()\n                else response = Object.values(this.getWatchedVars())\n                break\n            }\n\n            case 'htmlSend': {\n                response = this.htmlSend('', false)\n                break\n            }\n\n            case 'include': {\n                // include is async\n                response = _ui.include(prop, value)\n                break\n            }\n\n            case 'navigate': {\n                let newUrl\n                if (prop) newUrl = prop\n                else if (value) newUrl = value\n                response = this.navigate(newUrl)\n                break\n            }\n\n            case 'scrollTo': {\n                response = this.scrollTo(prop, value)\n                break\n            }\n\n            case 'set': {\n                let store = false\n                let autoload = false\n                if (msg._uib.options && msg._uib.options.store) {\n                    if (msg._uib.options.store === true) store = true\n                    if (msg._uib.options.autoload === true) autoload = true\n                }\n                response = this.set(prop, value, store, autoload)\n                break\n            }\n\n            case 'showMsg': {\n                response = this.showMsg(value, prop)\n                break\n            }\n\n            case 'showStatus': {\n                response = this.showStatus(value, prop)\n                break\n            }\n\n            case 'uiGet': {\n                response = _ui.uiGet(prop, value)\n                break\n            }\n\n            case 'uiWatch': {\n                response = this.uiWatch(prop)\n                break\n            }\n\n            case 'watchUrlHash': {\n                response = this.watchUrlHash(prop)\n                break\n            }\n\n            default: {\n                log('warning', 'Uib:_uibCommand', `Command '${cmd}' not yet implemented`)()\n                break\n            }\n        }\n\n        if (quiet !== true) {\n            if (response === undefined) {\n                response = `'${prop}' is undefined`\n            }\n            if (Object(response).constructor === Promise) {\n                // response = `'${cmd} ${prop}' submitted. Cmd is async, no response available`\n                response\n                    .then( (/** @type {any} */ data) => {\n                        msg.payload = msg._uib.response = data\n                        msg.info = msg._uib.info = info\n                        if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                        this.send(msg)\n                        return true\n                    })\n                    .catch( err => {\n                        log(0, 'Uib:_uibCommand', 'Error: ', err)()\n                    })\n            } else {\n                msg.payload = msg._uib.response = response\n                msg.info = msg._uib.info = info\n                if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                this.send(msg)\n            }\n        }\n    } // --- end of _uibCommand ---\n\n    /** Do we want to process something? Check pageName, clientId, tabId. Defaults to yes.\n     * @param {*} obj Either a msg._ui or msg._uib object to check\n     * @returns {boolean} True if we should process the inbound _ui/_uib msg, false if not.\n     */\n    _forThis(obj) {\n        let r = true\n\n        // Is this msg for this pageName?\n        if (obj.pageName && obj.pageName !== this.pageName) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this page')()\n            r = false\n        }\n\n        // Is this msg for this clientId?\n        if (obj.clientId && obj.clientId !== this.clientId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this clientId')()\n            r = false\n        }\n\n        // Is this msg for this tabId?\n        if (obj.tabId && obj.tabId !== this.tabId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this tabId')()\n            r = false\n        }\n\n        return r\n    }\n\n    // Handle received messages - Process some msgs internally, emit specific events on document that make it easy for coders to use\n    _msgRcvdEvents(msg) {\n        // Message received\n        this._dispatchCustomEvent('uibuilder:stdMsgReceived', msg)\n\n        // Topic\n        if ( msg.topic ) this._dispatchCustomEvent(`uibuilder:msg:topic:${msg.topic}`, msg)\n\n        // Handle msg._uib special requests\n        if (msg._uib) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._uib)) return\n\n            /** Process a client reload request from Node-RED - as the page is reloaded, everything else is ignored\n             * Note that msg._ui.reload is also actioned via the _ui processing below */\n            if (msg._uib.reload === true) {\n                log('trace', 'Uib:_msgRcvdEvents:_uib:reload', 'reloading')()\n                location.reload()\n                return\n            }\n\n            // Process msg._uib.command messages - allows Node-RED to run uibuilder FE functions\n            if (msg._uib.command) {\n                this._uibCommand(msg)\n                return\n            }\n\n            // Better to request via msg._ui - these are for backwards compatibility\n            if ( msg._uib.componentRef === 'globalNotification' ) {\n                _ui.showDialog('notify', msg._uib.options, msg)\n            }\n            if ( msg._uib.componentRef === 'globalAlert' ) {\n                _ui.showDialog('alert', msg._uib.options, msg)\n            }\n        }\n\n        // Handle msg._ui requests\n        if ( msg._ui ) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._ui)) return\n\n            log('trace', 'Uib:_msgRcvdEvents:_ui', 'Calling _uiManager')()\n            this._dispatchCustomEvent('uibuilder:msg:_ui', msg)\n            _ui._uiManager(msg)\n        }\n    } // --- end of _msgRcvdEvents ---\n\n    /** Callback handler for messages from Node-RED\n     * NOTE: `this` is the class here rather the `socket` as would be normal since we bind the correct `this` in the call.\n     *       Use this._socket if needing reference to the socket.\n     * @callback ioSetupFromServer Called from ioSetup/this._socket.on(this.#ioChannels.server, this.stdMsgFromServer.bind(this))\n     * @param {object} receivedMsg The msg object from Node-RED\n     * @this Uib\n     */\n    _stdMsgFromServer(receivedMsg) {\n\n        // Make sure that msg is an object & not null\n        receivedMsg = makeMeAnObject(receivedMsg, 'payload')\n\n        // Don't process if the inbound msg is not for us\n        if (receivedMsg._uib && !this._forThis(receivedMsg._uib)) return\n        if (receivedMsg._ui && !this._forThis(receivedMsg._ui)) return\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedMsg)\n\n        // Track how many messages have been received\n        this.set('msgsReceived', ++this.msgsReceived)\n\n        // Emit specific document events on msg receipt that make it easy for coders to use\n        this._msgRcvdEvents(receivedMsg)\n\n        if ( !('_ui' in receivedMsg && !('payload' in receivedMsg)) ) {\n            // Save the msg for further processing\n            this.set('msg', receivedMsg)\n        }\n\n        log('info', 'Uib:ioSetup:stdMsgFromServer', `Channel '${this._ioChannels.server}'. Received msg #${this.msgsReceived}.`, receivedMsg)()\n\n        // ! NOTE: Don't try to handle specialist messages here. See _msgRcvdEvents.\n\n    } // -- End of websocket receive DATA msg from Node-RED -- //\n\n    /** Handles original control msgs (not to be confused with \"new\" msg._uib controls)\n     * @param {*} receivedCtrlMsg The msg received on the socket.io control channel\n     */\n    _ctrlMsgFromServer(receivedCtrlMsg) {\n\n        // Make sure that msg is an object & not null\n        if (receivedCtrlMsg === null) {\n            receivedCtrlMsg = {}\n        } else if (typeof receivedCtrlMsg !== 'object') {\n            const msg = {}\n            msg['uibuilderCtrl:' + this._ioChannels.control] = receivedCtrlMsg\n            receivedCtrlMsg = msg\n        }\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedCtrlMsg)\n\n        this.set('ctrlMsg', receivedCtrlMsg)\n        this.set('msgsCtrlReceived', ++this.msgsCtrlReceived)\n\n        log('trace', 'Uib:ioSetup:_ctrlMsgFromServer', `Channel '${this._ioChannels.control}'. Received control msg #${this.msgsCtrlReceived}`, receivedCtrlMsg)()\n\n        /** Process control msg types */\n        switch (receivedCtrlMsg.uibuilderCtrl) {\n            // Node-RED is shutting down\n            case 'shutdown': {\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, '\u274C Received \"shutdown\" from server')()\n                this.set('serverShutdown', undefined)\n                break\n            }\n\n            /** We are connected to the server - 1st msg from server */\n            case 'client connect': {\n                log('trace', `Uib:ioSetup:${this._ioChannels.control}`, 'Received \"client connect\" from server')()\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, `\u2705 Server connected. Version: ${receivedCtrlMsg.version}\\nServer time: ${receivedCtrlMsg.serverTimestamp}, Sever time offset: ${this.serverTimeOffset} hours`)()\n\n                if ( !Uib._meta.version.startsWith(receivedCtrlMsg.version.split('-')[0]) ) {\n                    log('warn', `Uib:ioSetup:${this._ioChannels.control}`, `Server version (${receivedCtrlMsg.version}) not the same as the client version (${Uib._meta.version})`)()\n                }\n\n                if (this.autoSendReady === true) { // eslint-disable-line no-lonely-if\n                    log('trace', `Uib:ioSetup:${this._ioChannels.control}/client connect`, 'Auto-sending ready-for-content/replay msg to server')\n                    // @since 0.4.8c Add cacheControl property for use with node-red-contrib-infocache\n                    // @since 6.1.0 Don't bother, we use the \"client connect\" msg\n                    // this._send({\n                    //     'uibuilderCtrl': 'ready for content',\n                    //     'cacheControl': 'REPLAY',\n                    // }, this._ioChannels.control)\n                }\n\n                break\n            }\n\n            default: {\n                log('trace', `uibuilderfe:ioSetup:${this._ioChannels.control}`, `Received ${receivedCtrlMsg.uibuilderCtrl} from server`)\n                // Anything else to do for other control msgs?\n            }\n\n        } // ---- End of process control msg types ---- //\n\n    } // -- End of websocket receive CONTROL msg from Node-RED -- //\n\n    /** Send log text to uibuilder's beacon endpoint (works even if socket.io not connected)\n     * @param {string} txtToSend Text string to send\n     * @param {string|undefined} logLevel Log level to use. If not supplied, will default to debug\n     */\n    beaconLog(txtToSend, logLevel) {\n        if (!logLevel) logLevel = 'debug'\n        navigator.sendBeacon('./_clientLog', `${logLevel}::${txtToSend}`)\n    }\n\n    /** Send log info back to Node-RED over uibuilder's websocket control output (Port #2)\n     * @param {...*} arguments All arguments passed to the function are added to the msg.payload\n     */\n    logToServer() {\n        this.sendCtrl({\n            uibuilderCtrl: 'client log message',\n            payload: arguments,\n            // \"version\":\"6.1.0-iife.min\",\n            _socketId: this._socket.id,\n            // \"ip\":\"::1\",\n            clientId: this.clientId,\n            tabId: this.tabId,\n            // \"url\":\"esp-test\",\n            pageName: this.pageName,\n            connections: this.connectedNum,\n            lastNavType: this.lastNavType,\n        })\n    }\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Socket.IO -------- //\n\n    /** Return the Socket.IO namespace\n     * The cookie method is the most reliable but this falls back to trying to work it\n     * out from the URL if cookies not available. That won't work if page is in a sub-folder.\n     * since 2017-10-21 Improve method to cope with more complex paths - thanks to Steve Rickus @shrickus\n     * since 2017-11-10 v1.0.1 Check cookie first then url. cookie works even if the path is more complex (e.g. sub-folder)\n     * since 2020-01-25 Removed httpRoot from namespace to prevent proxy induced errors\n     * @returns {string} Socket.IO namespace\n     */\n    _getIOnamespace() {\n\n        let ioNamespace\n\n        /** Try getting the namespace cookie. */\n        ioNamespace = this.cookies['uibuilder-namespace']\n\n        // if it wasn't available, try using the current url path\n        if (ioNamespace === undefined || ioNamespace === '') {\n            // split url path & eliminate any blank elements, and trailing or double slashes\n            const u = window.location.pathname.split('/')\n                .filter(function (t) { return t.trim() !== '' })\n\n            /** since v2.0.5 Extra check for 0 length, Issue #73. since 2017-11-06 If the last element of the path is an .html file name, remove it */\n            if (u.length > 0 && (u[u.length - 1].endsWith('.html'))) u.pop()\n\n            // Get the last part of the url path, this MUST match the namespace in uibuilder\n            ioNamespace = u.pop()\n\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via url path: ${ioNamespace}`)()\n        } else {\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via cookie: ${ioNamespace}`)()\n        }\n\n        this.url = ioNamespace\n        // Namespace HAS to start with a /\n        ioNamespace = '/' + ioNamespace\n\n        log('trace', 'uibuilder.module.js:getIOnamespace', `Final Socket.IO namespace: ${ioNamespace}`)()\n\n        return ioNamespace\n    } // --- End of set IO namespace --- //\n\n    /** Function used to check whether Socket.IO is connected to the server, reconnect if not (recursive)\n     * @param {number} [delay] Initial delay before checking (ms). Default=2000ms\n     * @param {number} [factor] Multiplication factor for subsequent checks (delay*factor). Default=1.5\n     * @param {number} [depth] Recursion depth\n     * @returns {boolean|undefined} Whether or not Socket.IO is connected to uibuilder in Node-RED\n     */\n    _checkConnect(delay, factor, depth = 1) {\n        if ( navigator.onLine === false ) return // Don't bother if we know we are offline\n\n        if (!delay) delay = this.retryMs\n        if (!factor) factor = this.retryFactor\n\n        log('trace', 'Uib:checkConnect', `Checking connection. Connected: ${this._socket.connected}. Timer: ${this.#timerid}. Depth: ${depth}. Delay: ${delay}. Factor: ${factor}`, this._socket)()\n\n        // If we are connected ...\n        if (this._socket.connected === true) {\n            // Clear the setTimeout\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this.set('ioConnected', true)\n            this.set('socketError', null)\n            return true\n        }\n\n        // ... we aren't connected so:\n        this.set('ioConnected', false)\n\n        // we only want one running at a time\n        if (this.#timerid) window.clearTimeout(this.#timerid)\n\n        // Create the new timer\n        this.#timerid = window.setTimeout(() => {\n            log('warn', 'Uib:checkConnect:setTimeout', `Socket.IO reconnection attempt. Current delay: ${delay}. Depth: ${depth}`)()\n\n            // this is necessary sometimes when the socket fails to connect on startup\n            this._socket.close()\n\n            // Try to reconnect\n            this._socket.connect()\n\n            // don't need to check whether we have connected as the timer will have been cleared if we have\n            this.#timerid = null\n\n            // @ts-ignore Create new timer for next time round with extended delay\n            this._checkConnect(delay * factor, factor, depth++)\n        }, delay)\n\n        return false\n    } // --- End of checkConnect Fn--- //\n\n    // See message handling section for msg receipt handlers\n\n    /** Called by _ioSetup when Socket.IO connects to Node-RED */\n    _onConnect() {\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n        log('info', 'Uib:ioSetup', `\u2705 SOCKET CONNECTED. Connection count: ${this.connectedNum}, Is a Recovery?: ${this._socket.recovered}. \\nNamespace: ${this.ioNamespace}`)()\n        this._dispatchCustomEvent('uibuilder:socket:connected', { 'numConnections': this.connectedNum, 'isRecovery': this._socket.recovered })\n\n        this._checkConnect() // resets any reconnection timers & sets connected flag\n    }\n\n    /** Called by _ioSetup when Socket.IO disconnects from Node-RED\n     * @param {string} reason Disconnection title\n     */\n    _onDisconnect(reason) {\n        // reason === 'io server disconnect' - redeploy of Node instance\n        // reason === 'transport close' - Node-RED terminating\n        // reason === 'ping timeout' - didn't receive a pong response?\n        log('info', 'Uib:ioSetup:socket-disconnect', `\u26D4 Socket Disconnected. Reason: ${reason}`)()\n\n        this._dispatchCustomEvent('uibuilder:socket:disconnected', reason)\n\n        /** A workaround for SIO's failure to reconnect after a disconnection */\n        this._checkConnect()\n    }\n\n    /** Setup Socket.io\n     * since v2.0.0-beta2 Moved to a function and called by the user (uibuilder.start()) so that namespace & path can be passed manually if needed\n     * @returns {boolean} Attaches socket.io manager to self._socket and updates self.ioNamespace & self.ioPath as needed\n     */\n    _ioSetup() {\n\n        // Just a notification, actual load is done outside the class (see start of file)\n        if (io === undefined) {\n            log('error', 'Uib:ioSetup', 'Socket.IO client not loaded, Node-RED comms will not work')()\n            return false\n        }\n\n        // If socket is already set up, close it and remove all of the listeners\n        if (this._socket) {\n            log('trace', 'Uib:ioSetup', 'Removing listeners in preparation for redoing Socket.IO connections')()\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this._socket.close()\n            this._socket.offAny()\n            this._socket = undefined\n            this.set('ioConnected', false)\n        }\n\n        // Update the URL path to make sure we have the right one\n        this.socketOptions.path = this.ioPath\n\n        // NOTE: this._socket.auth is now set by callback and so automatically updated for each client (re)connection. No need to set here\n\n        // Create the socket - make sure client uses Socket.IO version from the uibuilder module (using path)\n        log('trace', 'Uib:ioSetup', `About to create IO object. Transports: [${this.socketOptions.transports.join(', ')}]`)()\n        this._socket = io(this.ioNamespace, this.socketOptions)\n\n        /** When the socket is connected - set ioConnected flag and reset connect timer  */\n        this._socket.on('connect', this._onConnect.bind(this))\n\n        // RECEIVE a STANDARD, non-control msg from Node-RED server\n        this._socket.on(this._ioChannels.server, this._stdMsgFromServer.bind(this))\n\n        // RECEIVE a CONTROL msg from Node-RED server - see also sendCtrl()\n        this._socket.on(this._ioChannels.control, this._ctrlMsgFromServer.bind(this))\n\n        // When the socket is disconnected ..............\n        this._socket.on('disconnect', this._onDisconnect.bind(this))\n\n        // Socket.io connection error - probably the wrong ioPath - or client is offline\n        this._socket.on('connect_error', (err) => {\n            if ( navigator.onLine === false ) return // Don't bother with an error if we know we are offline\n            log('error', 'Uib:ioSetup:connect_error', `\u274C Socket.IO Connect Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket connect error processing ---\n\n        // Socket.io error - from the server (socket.use middleware triggered an error response)\n        this._socket.on('error', (err) => {\n            log('error', 'Uib:ioSetup:error', `\u274C Socket.IO Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket error processing ---\n\n        // Ensure we are connected, retry if not\n        this._checkConnect()\n\n        return true\n\n        /* We really don't need these, just for interest\n            self._socket.io.on('packet', function onPacket(data){\n                // we get one of these for each REAL msg (not ping/pong)\n                console.debug('PACKET', data)\n            })\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n                //console.dir(self._socket)\n            }) // --- End of socket pong processing ---\n            self._socket.io.on('packet', function(data){\n                // We get one of these for actual messages, not ping/pong\n                console.debug('PACKET', data)\n            })\n            self._socket.on('connect_timeout', function(timeout) {\n                console.debug('SOCKET CONNECT TIMEOUT - Namespace: ' + ioNamespace + ', Timeout: ' + timeout)\n            }) // --- End of socket connect timeout processing ---\n            self._socket.on('reconnect', function(attemptNum) {\n                console.debug('SOCKET RECONNECTED - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect processing ---\n            self._socket.on('reconnect_attempt', function(attemptNum) {\n                console.debug('SOCKET RECONNECT ATTEMPT - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect_attempt processing ---\n            self._socket.on('reconnecting', function(attemptNum) {\n                console.debug('SOCKET RECONNECTING - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnecting processing ---\n            self._socket.on('reconnect_error', function(err) {\n                console.debug('SOCKET RECONNECT ERROR - Namespace: ' + ioNamespace + ', Reason: ' + err.message)\n                //console.dir(err)\n            }) // --- End of socket reconnect_error processing ---\n            self._socket.on('reconnect_failed', function() {\n                console.debug('SOCKET RECONNECT FAILED - Namespace: ' + ioNamespace)\n            }) // --- End of socket reconnect_failed processing ---\n            self._socket.on('ping', function() {\n                console.debug('SOCKET PING')\n            }) // --- End of socket ping processing ---\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n            }) // --- End of socket pong processing ---\n            */\n    } // ---- End of ioSetup ---- //\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Class construction & startup method -------- //\n\n    constructor() {\n        log('trace', 'Uib:constructor', 'Starting')()\n\n        // Track whether the client is online or offline\n        window.addEventListener('offline', (e) => {\n            this.set('online', false)\n            this.set('ioConnected', false)\n            log('warn', 'Browser', 'DISCONNECTED from network')()\n        })\n        window.addEventListener('online', (e) => {\n            this.set('online', true)\n            log('warn', 'Browser', 'Reconnected to network')()\n            this._checkConnect()\n        })\n\n        document.cookie.split(';').forEach((c) => {\n            const splitC = c.split('=')\n            this.cookies[splitC[0].trim()] = splitC[1]\n        })\n\n        /** Client ID set by uibuilder - lasts until browser profile is closed, applies to all tabs */\n        this.set('clientId', this.cookies['uibuilder-client-id'])\n        log('trace', 'Uib:constructor', 'Client ID: ', this.clientId)()\n\n        /** Tab ID - lasts while the tab is open (even if reloaded)\n         * WARNING: Duplicating a tab retains the same tabId\n         */\n        this.set('tabId', window.sessionStorage.getItem('tabId'))\n        if (!this.tabId) {\n            this.set('tabId', `t${Math.floor(Math.random() * 1000000)}`)\n            window.sessionStorage.setItem('tabId', this.tabId)\n        }\n\n        // document.addEventListener('pagehide', (event) => {\n        //     // console.log(`pagehide. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pagehide. From Cache?: ${event.persisted}`)\n        // })\n        // document.addEventListener('pageshow', (event) => {\n        //     // console.log(`pageshow. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pageshow. From Cache?: ${event.persisted}`)\n        // })\n        document.addEventListener('load', () => {\n            this.set('isVisible', true)\n        })\n        document.addEventListener('visibilitychange', () => {\n            // hidden=unload, minimise. visible=un-minimise (not fired on load)\n            this.set('isVisible', document.visibilityState === 'visible')\n            this.sendCtrl({ uibuilderCtrl: 'visibility', isVisible: this.isVisible })\n            // navigator.userActivation is experimental Chromium only\n            // console.log('visibilitychange', ':', `Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n            // navigator.sendBeacon('./_clientLog', `${(new Date()).toISOString()} Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n        })\n\n        // Set a listener to update showStatus table if it is active\n        document.addEventListener('uibuilder:propertyChanged', (event) => {\n            if (!this.#isShowStatus) return\n\n            // @ts-ignore\n            if (event.detail.prop in this.#showStatus) {\n                // @ts-ignore\n                document.querySelector(`td[data-vartype=\"${event.detail.prop}\"]`).innerText = JSON.stringify(event.detail.value)\n            }\n        })\n\n        this.set('ioNamespace', this._getIOnamespace())\n\n        //#region - Try to make sure client uses Socket.IO client version from the uibuilder module (using cookie or path) @since v2.0.0 2019-02-24 allows for httpNodeRoot\n\n        /** httpNodeRoot (to set path) */\n        if ('uibuilder-webRoot' in this.cookies) {\n            this.set('httpNodeRoot', this.cookies['uibuilder-webRoot'])\n            log('trace', 'Uib:constructor', `httpNodeRoot set by cookie to \"${this.httpNodeRoot}\"`)()\n        } else {\n            // split current url path, eliminate any blank elements and trailing or double slashes\n            const fullPath = window.location.pathname.split('/').filter(function (t) { return t.trim() !== '' })\n            /** handle url includes file name - @since v2.0.5 Extra check for 0 length, Issue #73. */\n            if (fullPath.length > 0 && fullPath[fullPath.length - 1].endsWith('.html')) fullPath.pop()\n            fullPath.pop() // gives the last path section of the url\n            this.set('httpNodeRoot', `/${fullPath.join('/')}`)\n            log('trace', '[Uib:constructor]', `httpNodeRoot set by URL parsing to \"${this.httpNodeRoot}\". NOTE: This may fail for pages in sub-folders.`)()\n        }\n        this.set('ioPath', urlJoin(this.httpNodeRoot, Uib._meta.displayName, 'vendor', 'socket.io'))\n        log('trace', 'Uib:constructor', `ioPath: \"${this.ioPath}\"`)()\n\n        //#endregion\n\n        // Work out pageName\n        this.set('pageName', window.location.pathname.replace(`${this.ioNamespace}/`, ''))\n        if ( this.pageName.endsWith('/') ) this.set('pageName', `${this.pageName}index.html`)\n        if ( this.pageName === '' ) this.set('pageName', 'index.html')\n\n        // Attempt to restore autoload variables\n        try {\n            const autoloadVars = this.getStore('_uibAutoloadVars')\n            if (Object.keys(autoloadVars).length > 0) {\n                Object.keys(autoloadVars).forEach( (id) => {\n                    this.set(id, this.getStore(id))\n                })\n            }\n        } catch (e) {}\n\n        this._dispatchCustomEvent('uibuilder:constructorComplete')\n\n        log('trace', 'Uib:constructor', 'Ending')()\n    }\n\n    /** Start up Socket.IO comms and listeners\n     * This has to be done separately because if running from a web page in a sub-folder of src/dist, uibuilder cannot\n     * necessarily work out the correct ioPath to use.\n     * Also, if cookies aren't permitted in the browser, both ioPath and ioNamespace may need to be specified.\n     * @param {object} [options] The start options object.\n     * @returns {void}\n     */\n    start(options) {\n        log('trace', 'Uib:start', 'Starting')()\n\n        // Cancel the msg event handler if already present\n        if ( this.#MsgHandler ) this.cancelChange('msg', this.#MsgHandler)\n\n        if (this.started === true) {\n            log('info', 'Uib:start', 'Start function already called. Resetting Socket.IO and msg handler.')()\n        }\n\n        log('log', 'Uib:start', 'Cookies: ', this.cookies, `\\nClient ID: ${this.clientId}`)()\n        log('trace', 'Uib:start', 'ioNamespace: ', this.ioNamespace, `\\nioPath: ${this.ioPath}`)()\n\n        // Handle options\n        if (options) {\n            if (options.ioNamespace !== undefined && options.ioNamespace !== null && options.ioNamespace !== '') this.set('ioNamespace', options.ioNamespace)\n            if (options.ioPath !== undefined && options.ioPath !== null && options.ioPath !== '') this.set('ioPath', options.ioPath)\n            // See below for handling of options.loadStylesheet\n        }\n\n        // Do we need to load styles?\n        if ( document.styleSheets.length >= 1 || (document.styleSheets.length === 1 && document.styleSheets[0].cssRules.length === 0) ) {\n            log('info', 'Uib:start', 'Styles already loaded so not loading uibuilder default styles.')()\n        } else {\n            if (options && options.loadStylesheet === false) log('info', 'Uib:start', 'No styles loaded & options.loadStylesheet === false.')()\n            else {\n                log('info', 'Uib:start', 'No styles loaded, loading uibuilder default styles.')()\n                this.loadStyleSrc(`${this.httpNodeRoot}/uibuilder/uib-brand.min.css`)\n            }\n        }\n\n        /** Handle specialist messages like reload and _ui -> Moved to _msgRcvdEvents */\n\n        // Track last browser navigation type: navigate, reload, back_forward, prerender\n        const [entry] = performance.getEntriesByType('navigation')\n        // @ts-ignore\n        this.set('lastNavType', entry.type)\n\n        // Start up (or restart) Socket.IO connections and listeners. Returns false if io not found\n        this.set('started', this._ioSetup())\n\n        if ( this.started === true ) {\n            log('trace', 'Uib:start', 'Start completed. Socket.IO client library loaded.')()\n        } else {\n            log('error', 'Uib:start', 'Start completed. ERROR: Socket.IO client library NOT LOADED.')()\n        }\n\n        // Watch for URL hash changes in case using a front-end router. Updates watched var `urlHash` and socket.io `auth.urlHash`\n        this._watchHashChanges()\n\n        // Check if Vue is present (used for dynamic UI processing)\n        if (window['Vue']) {\n            this.set('isVue', true)\n            try {\n                this.set('vueVersion', window['Vue'].version)\n            } catch (e) { }\n            log('trace', 'Uib:start', `VueJS is loaded. Version: ${this.vueVersion}`)()\n        } else {\n            log('trace', 'Uib:start', 'VueJS is not loaded.')()\n        }\n\n        // Check if DOMPurify library is loaded\n        if (window['DOMPurify']) {\n            this.set('purify', true)\n            log('trace', 'Uib:start', 'DOMPurify is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'DOMPurify is not loaded.')()\n        }\n        // Check if Markdown-IT library is loaded\n        if (window['markdownit']) {\n            this.set('markdown', true)\n            log('trace', 'Uib:start', 'Markdown-IT is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'Markdown-IT is not loaded.')()\n        }\n\n        // if (window['DOMPurify']) {\n        //     this.set('purify', true)\n        //     log('trace', 'Uib:start', 'DOMPurify is loaded.')\n        // } else {\n        //     log('trace', 'Uib:start', 'DOMPurify is not loaded.')\n        // }\n\n        // Set up msg listener for the optional showMsg\n        this.onChange('msg', (msg) => {\n            if (this.#isShowMsg === true) {\n                const eMsg = document.getElementById('uib_last_msg')\n                if (eMsg) eMsg.innerHTML = this.syntaxHighlight(msg)\n            }\n        })\n\n        this._dispatchCustomEvent('uibuilder:startComplete')\n    }\n\n    //#endregion -------- ------------ -------- //\n} // ==== End of Class Uib ====\n\n//#region --- Wrap up - get things started ---\n\n// Create an instance (we will only ever want one)\nconst uibuilder = new Uib()\n\n// Assign reference to the instance to the global `window` object\n// Only useful if loading via <script> tag - prefer loading via `import uibuilder from ...`\nif (!window['uibuilder']) {\n    window['uibuilder'] = uibuilder\n} else {\n    log('error', 'uibuilder.module.js', '`uibuilder` already assigned to window. Have you tried to load it more than once?')\n}\nif (!window['uib']) {\n    window['uib'] = uibuilder\n} else {\n    log('warn', 'uibuilder.module.js', '`uib` shortcut already assigned to window.')\n}\n\n// Assign `$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$`.\nif (!window['$']) {\n    /** @type {HTMLElement} */\n    window['$'] = window['uibuilder'].$ // document.querySelector.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` instead.')\n}\n// Assign `$$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$$']) {\n    /** @type {HTMLElement} */\n    window['$$'] = window['uibuilder'].$$ // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` instead.')\n}\n\n// Can import as `import uibuilder from ...` OR `import {uibuilder} from ...`\nexport { uibuilder }\nexport default uibuilder\n\n// Attempt to run start fn\nuibuilder.start()\n\n// Add the class as a new Custom Element to the window object\ncustomElements.define('uib-var', UibVar)\n\n//#endregion --- Wrap up ---\n\n// EOF\n", "/** A zero dependency web component that will display a managed uibuilder variable.\n *\n * Version: 0.0.1 2023-10-07\n *\n * ToDo:\n * -\n */\n/*\n  Copyright (c) 2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n// const template = document.createElement('template')\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<link type=\"text/css\" rel=\"stylesheet\" href=\"\"../uibuilder/uib-brand.min.css\"\" media=\"all\"><span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`\n// {/* <style>@import url(\"../uibuilder/uib-brand.min.css\");</style><span></span> */}\n// `\n\nexport default class UibVar extends HTMLElement {\n    //#region --- Class Properties ---\n    /** @type {string} Name of the uibuilder mangaged variable to use */\n    variable\n    /** Current value of the watched variable */\n    value\n    /** Whether to output if the variable is undefined */\n    undefined = false\n    /** Whether to send update value to Node-RED on change */\n    report = false\n    /** What is the value type */\n    type = 'plain'\n    /** what are the available types? */\n    types = ['plain', 'html', 'markdown', 'object']\n\n    /** Mini jQuery-like shadow dom selector (see constructor) */\n    $\n    \n    /** Holds a count of how many instances of this component are on the page */\n    static _iCount = 0\n    /** @type {Array<string>} List of all of the html attribs (props) listened to */\n    static props = ['name', 'id', 'variable', 'undefined', 'report', 'type']\n    //#endregion --- Class Properties ---\n\n    constructor() {\n        super()\n        this.shadow = this.attachShadow({ mode: 'open', delegatesFocus: true })\n            // .append(template.content.cloneNode(true))\n\n        this.$ = this.shadowRoot.querySelector.bind(this.shadowRoot)\n\n        // Apply external styles to the shadow dom\n        this.css = document.createElement(\"link\")\n        this.css.setAttribute(\"type\", \"text/css\")\n        this.css.setAttribute(\"rel\", \"stylesheet\")\n        this.css.setAttribute(\"href\", \"../uibuilder/uib-brand.min.css\")\n\n        this.dispatchEvent(new Event(`uib-var:construction`, { bubbles: true, composed: true }))\n    }\n\n    // Makes HTML attribute change watched\n    static get observedAttributes() {\n        return UibVar.props\n    }\n\n    /** NOTE: On initial startup, this is called for each watched attrib set in HTML - BEFORE connectedCallback is called  */\n    attributeChangedCallback(attrib, oldVal, newVal) {\n        if ( oldVal === newVal ) return\n\n        switch (attrib) {\n            case 'variable': {\n                if (newVal === '') throw new Error('[uib-var] Attribute \"variable\" MUST be set to a UIBUILDER managed variable name')\n                this.variable = newVal\n                this.doWatch()\n                break\n            }\n            case 'undefined': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.undefined = true\n                else this.undefined = false\n                break\n            }\n            case 'report': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.report = true\n                else this.report = false\n                break\n            }\n            case 'type': {\n                if (newVal === '' || !this.types.includes(newVal.toLowerCase())) this.type = 'plain'\n                else this.type = newVal\n                break\n            }\n\n            default: {\n                this[attrib] = newVal\n                break\n            }\n        }\n    } // --- end of attributeChangedCallback --- //\n\n    // Runs when an instance is added to the DOM\n    connectedCallback() {\n        // Make sure instance has an ID. Create an id from name or calculation if needed\n        if (!this.id) {\n            if (!this.name) this.name = this.getAttribute('name')\n            if (this.name) this.id = this.name.toLowerCase().replace(/\\s/g, '_')\n            else this.id = `uib-var-${++UibVar._iCount}`\n        }\n    }  // ---- end of connectedCallback ---- //\n\n    // Runs when an instance is removed from the DOM\n    // disconnectedCallback() {} // ---- end of disconnectedCallback ---- //\n\n    /** Process changes to the required uibuilder variable */\n    doWatch() {\n        if (!this.variable) throw new Error('No variable name provided')\n        // if (!window['uibuilder']) throw new Error('UIBUILDER client library not loaded - this component must be loaded AFTER the UIBUILDER library')\n\n        this.value = window['uibuilder'].get(this.variable)\n        this.varDom()\n\n        // Watch for changes in the variable\n        window['uibuilder'].onChange(this.variable, (val) => {\n            this.value = val\n            this.varDom()\n            if (this.report === true) window['uibuilder'].send({topic: this.variable, payload: this.value || undefined})\n        })\n    }\n\n    /** Convert this.value to DOM output */\n    varDom() {\n        // If user doesn't want to show undefined vars, allow the component slot to show instead\n        if (this.value === undefined && this.undefined !== true) { \n            this.shadow.innerHTML = '<slot></slot>'\n            return\n        }\n        \n        let val = this.value\n\n        // console.log('\uD83E\uDDEA varDOM: ', val, typeof val, this.type)\n\n        switch (this.type) {\n            case 'markdown': {\n                this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(window['uibuilder'].convertMarkdown(val))\n                break\n            }\n        \n            case 'object': {\n                // console.log(window['uibuilder'].syntaxHighlight(val))\n                this.shadow.innerHTML = `<pre class=\"syntax-highlight\">${window['uibuilder'].syntaxHighlight(val)}</pre>`\n                break\n            }\n        \n            case 'plain':\n            case 'html':\n            default: {\n                const t = typeof val\n                if (Array.isArray(val) || t === '[object Object]' || t === 'object') {\n                    try {\n                        this.shadow.innerHTML = JSON.stringify(val)\n                    } catch (e) {\n                        this.shadow.innerHTML = val\n                    }\n                } else {\n                    this.shadow.innerHTML = val\n                }\n                break\n            }\n        }\n\n        this.shadow.appendChild(this.css)\n        // this.$('span').innerHTML = window['uibuilder'].sanitiseHTML(val)\n        // this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(val)\n    }\n}\n\n// Add the class as a new Custom Element to the window object \n// customElements.define('uib-var', UibVar)\n", "const PACKET_TYPES = Object.create(null); // no Map = no polyfill\nPACKET_TYPES[\"open\"] = \"0\";\nPACKET_TYPES[\"close\"] = \"1\";\nPACKET_TYPES[\"ping\"] = \"2\";\nPACKET_TYPES[\"pong\"] = \"3\";\nPACKET_TYPES[\"message\"] = \"4\";\nPACKET_TYPES[\"upgrade\"] = \"5\";\nPACKET_TYPES[\"noop\"] = \"6\";\nconst PACKET_TYPES_REVERSE = Object.create(null);\nObject.keys(PACKET_TYPES).forEach(key => {\n    PACKET_TYPES_REVERSE[PACKET_TYPES[key]] = key;\n});\nconst ERROR_PACKET = { type: \"error\", data: \"parser error\" };\nexport { PACKET_TYPES, PACKET_TYPES_REVERSE, ERROR_PACKET };\n", "import { PACKET_TYPES } from \"./commons.js\";\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        Object.prototype.toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\n// ArrayBuffer.isView method is not defined in IE10\nconst isView = obj => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj && obj.buffer instanceof ArrayBuffer;\n};\nconst encodePacket = ({ type, data }, supportsBinary, callback) => {\n    if (withNativeBlob && data instanceof Blob) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(data, callback);\n        }\n    }\n    else if (withNativeArrayBuffer &&\n        (data instanceof ArrayBuffer || isView(data))) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(new Blob([data]), callback);\n        }\n    }\n    // plain string\n    return callback(PACKET_TYPES[type] + (data || \"\"));\n};\nconst encodeBlobAsBase64 = (data, callback) => {\n    const fileReader = new FileReader();\n    fileReader.onload = function () {\n        const content = fileReader.result.split(\",\")[1];\n        callback(\"b\" + (content || \"\"));\n    };\n    return fileReader.readAsDataURL(data);\n};\nfunction toArray(data) {\n    if (data instanceof Uint8Array) {\n        return data;\n    }\n    else if (data instanceof ArrayBuffer) {\n        return new Uint8Array(data);\n    }\n    else {\n        return new Uint8Array(data.buffer, data.byteOffset, data.byteLength);\n    }\n}\nlet TEXT_ENCODER;\nexport function encodePacketToBinary(packet, callback) {\n    if (withNativeBlob && packet.data instanceof Blob) {\n        return packet.data\n            .arrayBuffer()\n            .then(toArray)\n            .then(callback);\n    }\n    else if (withNativeArrayBuffer &&\n        (packet.data instanceof ArrayBuffer || isView(packet.data))) {\n        return callback(toArray(packet.data));\n    }\n    encodePacket(packet, false, encoded => {\n        if (!TEXT_ENCODER) {\n            TEXT_ENCODER = new TextEncoder();\n        }\n        callback(TEXT_ENCODER.encode(encoded));\n    });\n}\nexport { encodePacket };\n", "// imported from https://github.com/socketio/base64-arraybuffer\nconst chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';\n// Use a lookup table to find the index.\nconst lookup = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);\nfor (let i = 0; i < chars.length; i++) {\n    lookup[chars.charCodeAt(i)] = i;\n}\nexport const encode = (arraybuffer) => {\n    let bytes = new Uint8Array(arraybuffer), i, len = bytes.length, base64 = '';\n    for (i = 0; i < len; i += 3) {\n        base64 += chars[bytes[i] >> 2];\n        base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];\n        base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];\n        base64 += chars[bytes[i + 2] & 63];\n    }\n    if (len % 3 === 2) {\n        base64 = base64.substring(0, base64.length - 1) + '=';\n    }\n    else if (len % 3 === 1) {\n        base64 = base64.substring(0, base64.length - 2) + '==';\n    }\n    return base64;\n};\nexport const decode = (base64) => {\n    let bufferLength = base64.length * 0.75, len = base64.length, i, p = 0, encoded1, encoded2, encoded3, encoded4;\n    if (base64[base64.length - 1] === '=') {\n        bufferLength--;\n        if (base64[base64.length - 2] === '=') {\n            bufferLength--;\n        }\n    }\n    const arraybuffer = new ArrayBuffer(bufferLength), bytes = new Uint8Array(arraybuffer);\n    for (i = 0; i < len; i += 4) {\n        encoded1 = lookup[base64.charCodeAt(i)];\n        encoded2 = lookup[base64.charCodeAt(i + 1)];\n        encoded3 = lookup[base64.charCodeAt(i + 2)];\n        encoded4 = lookup[base64.charCodeAt(i + 3)];\n        bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n        bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n        bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n    }\n    return arraybuffer;\n};\n", "import { ERROR_PACKET, PACKET_TYPES_REVERSE } from \"./commons.js\";\nimport { decode } from \"./contrib/base64-arraybuffer.js\";\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nexport const decodePacket = (encodedPacket, binaryType) => {\n    if (typeof encodedPacket !== \"string\") {\n        return {\n            type: \"message\",\n            data: mapBinary(encodedPacket, binaryType)\n        };\n    }\n    const type = encodedPacket.charAt(0);\n    if (type === \"b\") {\n        return {\n            type: \"message\",\n            data: decodeBase64Packet(encodedPacket.substring(1), binaryType)\n        };\n    }\n    const packetType = PACKET_TYPES_REVERSE[type];\n    if (!packetType) {\n        return ERROR_PACKET;\n    }\n    return encodedPacket.length > 1\n        ? {\n            type: PACKET_TYPES_REVERSE[type],\n            data: encodedPacket.substring(1)\n        }\n        : {\n            type: PACKET_TYPES_REVERSE[type]\n        };\n};\nconst decodeBase64Packet = (data, binaryType) => {\n    if (withNativeArrayBuffer) {\n        const decoded = decode(data);\n        return mapBinary(decoded, binaryType);\n    }\n    else {\n        return { base64: true, data }; // fallback for old browsers\n    }\n};\nconst mapBinary = (data, binaryType) => {\n    switch (binaryType) {\n        case \"blob\":\n            if (data instanceof Blob) {\n                // from WebSocket + binaryType \"blob\"\n                return data;\n            }\n            else {\n                // from HTTP long-polling or WebTransport\n                return new Blob([data]);\n            }\n        case \"arraybuffer\":\n        default:\n            if (data instanceof ArrayBuffer) {\n                // from HTTP long-polling (base64) or WebSocket + binaryType \"arraybuffer\"\n                return data;\n            }\n            else {\n                // from WebTransport (Uint8Array)\n                return data.buffer;\n            }\n    }\n};\n", "import { encodePacket, encodePacketToBinary } from \"./encodePacket.js\";\nimport { decodePacket } from \"./decodePacket.js\";\nimport { ERROR_PACKET } from \"./commons.js\";\nconst SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text\nconst encodePayload = (packets, callback) => {\n    // some packets may be added to the array while encoding, so the initial length must be saved\n    const length = packets.length;\n    const encodedPackets = new Array(length);\n    let count = 0;\n    packets.forEach((packet, i) => {\n        // force base64 encoding for binary packets\n        encodePacket(packet, false, encodedPacket => {\n            encodedPackets[i] = encodedPacket;\n            if (++count === length) {\n                callback(encodedPackets.join(SEPARATOR));\n            }\n        });\n    });\n};\nconst decodePayload = (encodedPayload, binaryType) => {\n    const encodedPackets = encodedPayload.split(SEPARATOR);\n    const packets = [];\n    for (let i = 0; i < encodedPackets.length; i++) {\n        const decodedPacket = decodePacket(encodedPackets[i], binaryType);\n        packets.push(decodedPacket);\n        if (decodedPacket.type === \"error\") {\n            break;\n        }\n    }\n    return packets;\n};\nexport function createPacketEncoderStream() {\n    return new TransformStream({\n        transform(packet, controller) {\n            encodePacketToBinary(packet, encodedPacket => {\n                const payloadLength = encodedPacket.length;\n                let header;\n                // inspired by the WebSocket format: https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API/Writing_WebSocket_servers#decoding_payload_length\n                if (payloadLength < 126) {\n                    header = new Uint8Array(1);\n                    new DataView(header.buffer).setUint8(0, payloadLength);\n                }\n                else if (payloadLength < 65536) {\n                    header = new Uint8Array(3);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 126);\n                    view.setUint16(1, payloadLength);\n                }\n                else {\n                    header = new Uint8Array(9);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 127);\n                    view.setBigUint64(1, BigInt(payloadLength));\n                }\n                // first bit indicates whether the payload is plain text (0) or binary (1)\n                if (packet.data && typeof packet.data !== \"string\") {\n                    header[0] |= 0x80;\n                }\n                controller.enqueue(header);\n                controller.enqueue(encodedPacket);\n            });\n        }\n    });\n}\nlet TEXT_DECODER;\nfunction totalLength(chunks) {\n    return chunks.reduce((acc, chunk) => acc + chunk.length, 0);\n}\nfunction concatChunks(chunks, size) {\n    if (chunks[0].length === size) {\n        return chunks.shift();\n    }\n    const buffer = new Uint8Array(size);\n    let j = 0;\n    for (let i = 0; i < size; i++) {\n        buffer[i] = chunks[0][j++];\n        if (j === chunks[0].length) {\n            chunks.shift();\n            j = 0;\n        }\n    }\n    if (chunks.length && j < chunks[0].length) {\n        chunks[0] = chunks[0].slice(j);\n    }\n    return buffer;\n}\nexport function createPacketDecoderStream(maxPayload, binaryType) {\n    if (!TEXT_DECODER) {\n        TEXT_DECODER = new TextDecoder();\n    }\n    const chunks = [];\n    let state = 0 /* READ_HEADER */;\n    let expectedLength = -1;\n    let isBinary = false;\n    return new TransformStream({\n        transform(chunk, controller) {\n            chunks.push(chunk);\n            while (true) {\n                if (state === 0 /* READ_HEADER */) {\n                    if (totalLength(chunks) < 1) {\n                        break;\n                    }\n                    const header = concatChunks(chunks, 1);\n                    isBinary = (header[0] & 0x80) === 0x80;\n                    expectedLength = header[0] & 0x7f;\n                    if (expectedLength < 126) {\n                        state = 3 /* READ_PAYLOAD */;\n                    }\n                    else if (expectedLength === 126) {\n                        state = 1 /* READ_EXTENDED_LENGTH_16 */;\n                    }\n                    else {\n                        state = 2 /* READ_EXTENDED_LENGTH_64 */;\n                    }\n                }\n                else if (state === 1 /* READ_EXTENDED_LENGTH_16 */) {\n                    if (totalLength(chunks) < 2) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 2);\n                    expectedLength = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length).getUint16(0);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else if (state === 2 /* READ_EXTENDED_LENGTH_64 */) {\n                    if (totalLength(chunks) < 8) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 8);\n                    const view = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length);\n                    const n = view.getUint32(0);\n                    if (n > Math.pow(2, 53 - 32) - 1) {\n                        // the maximum safe integer in JavaScript is 2^53 - 1\n                        controller.enqueue(ERROR_PACKET);\n                        break;\n                    }\n                    expectedLength = n * Math.pow(2, 32) + view.getUint32(4);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else {\n                    if (totalLength(chunks) < expectedLength) {\n                        break;\n                    }\n                    const data = concatChunks(chunks, expectedLength);\n                    controller.enqueue(decodePacket(isBinary ? data : TEXT_DECODER.decode(data), binaryType));\n                    state = 0 /* READ_HEADER */;\n                }\n                if (expectedLength === 0 || expectedLength > maxPayload) {\n                    controller.enqueue(ERROR_PACKET);\n                    break;\n                }\n            }\n        }\n    });\n}\nexport const protocol = 4;\nexport { encodePacket, encodePayload, decodePacket, decodePayload };\n", "/**\n * Initialize a new `Emitter`.\n *\n * @api public\n */\n\nexport function Emitter(obj) {\n  if (obj) return mixin(obj);\n}\n\n/**\n * Mixin the emitter properties.\n *\n * @param {Object} obj\n * @return {Object}\n * @api private\n */\n\nfunction mixin(obj) {\n  for (var key in Emitter.prototype) {\n    obj[key] = Emitter.prototype[key];\n  }\n  return obj;\n}\n\n/**\n * Listen on the given `event` with `fn`.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.on =\nEmitter.prototype.addEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])\n    .push(fn);\n  return this;\n};\n\n/**\n * Adds an `event` listener that will be invoked a single\n * time then automatically removed.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.once = function(event, fn){\n  function on() {\n    this.off(event, on);\n    fn.apply(this, arguments);\n  }\n\n  on.fn = fn;\n  this.on(event, on);\n  return this;\n};\n\n/**\n * Remove the given callback for `event` or all\n * registered callbacks.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.off =\nEmitter.prototype.removeListener =\nEmitter.prototype.removeAllListeners =\nEmitter.prototype.removeEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n\n  // all\n  if (0 == arguments.length) {\n    this._callbacks = {};\n    return this;\n  }\n\n  // specific event\n  var callbacks = this._callbacks['$' + event];\n  if (!callbacks) return this;\n\n  // remove all handlers\n  if (1 == arguments.length) {\n    delete this._callbacks['$' + event];\n    return this;\n  }\n\n  // remove specific handler\n  var cb;\n  for (var i = 0; i < callbacks.length; i++) {\n    cb = callbacks[i];\n    if (cb === fn || cb.fn === fn) {\n      callbacks.splice(i, 1);\n      break;\n    }\n  }\n\n  // Remove event specific arrays for event types that no\n  // one is subscribed for to avoid memory leak.\n  if (callbacks.length === 0) {\n    delete this._callbacks['$' + event];\n  }\n\n  return this;\n};\n\n/**\n * Emit `event` with the given args.\n *\n * @param {String} event\n * @param {Mixed} ...\n * @return {Emitter}\n */\n\nEmitter.prototype.emit = function(event){\n  this._callbacks = this._callbacks || {};\n\n  var args = new Array(arguments.length - 1)\n    , callbacks = this._callbacks['$' + event];\n\n  for (var i = 1; i < arguments.length; i++) {\n    args[i - 1] = arguments[i];\n  }\n\n  if (callbacks) {\n    callbacks = callbacks.slice(0);\n    for (var i = 0, len = callbacks.length; i < len; ++i) {\n      callbacks[i].apply(this, args);\n    }\n  }\n\n  return this;\n};\n\n// alias used for reserved events (protected method)\nEmitter.prototype.emitReserved = Emitter.prototype.emit;\n\n/**\n * Return array of callbacks for `event`.\n *\n * @param {String} event\n * @return {Array}\n * @api public\n */\n\nEmitter.prototype.listeners = function(event){\n  this._callbacks = this._callbacks || {};\n  return this._callbacks['$' + event] || [];\n};\n\n/**\n * Check if this emitter has `event` handlers.\n *\n * @param {String} event\n * @return {Boolean}\n * @api public\n */\n\nEmitter.prototype.hasListeners = function(event){\n  return !! this.listeners(event).length;\n};\n", "export const globalThisShim = (() => {\n    if (typeof self !== \"undefined\") {\n        return self;\n    }\n    else if (typeof window !== \"undefined\") {\n        return window;\n    }\n    else {\n        return Function(\"return this\")();\n    }\n})();\n", "import { globalThisShim as globalThis } from \"./globalThis.js\";\nexport function pick(obj, ...attr) {\n    return attr.reduce((acc, k) => {\n        if (obj.hasOwnProperty(k)) {\n            acc[k] = obj[k];\n        }\n        return acc;\n    }, {});\n}\n// Keep a reference to the real timeout functions so they can be used when overridden\nconst NATIVE_SET_TIMEOUT = globalThis.setTimeout;\nconst NATIVE_CLEAR_TIMEOUT = globalThis.clearTimeout;\nexport function installTimerFunctions(obj, opts) {\n    if (opts.useNativeTimers) {\n        obj.setTimeoutFn = NATIVE_SET_TIMEOUT.bind(globalThis);\n        obj.clearTimeoutFn = NATIVE_CLEAR_TIMEOUT.bind(globalThis);\n    }\n    else {\n        obj.setTimeoutFn = globalThis.setTimeout.bind(globalThis);\n        obj.clearTimeoutFn = globalThis.clearTimeout.bind(globalThis);\n    }\n}\n// base64 encoded buffers are about 33% bigger (https://en.wikipedia.org/wiki/Base64)\nconst BASE64_OVERHEAD = 1.33;\n// we could also have used `new Blob([obj]).size`, but it isn't supported in IE9\nexport function byteLength(obj) {\n    if (typeof obj === \"string\") {\n        return utf8Length(obj);\n    }\n    // arraybuffer or blob\n    return Math.ceil((obj.byteLength || obj.size) * BASE64_OVERHEAD);\n}\nfunction utf8Length(str) {\n    let c = 0, length = 0;\n    for (let i = 0, l = str.length; i < l; i++) {\n        c = str.charCodeAt(i);\n        if (c < 0x80) {\n            length += 1;\n        }\n        else if (c < 0x800) {\n            length += 2;\n        }\n        else if (c < 0xd800 || c >= 0xe000) {\n            length += 3;\n        }\n        else {\n            i++;\n            length += 4;\n        }\n    }\n    return length;\n}\n", "// imported from https://github.com/galkn/querystring\n/**\n * Compiles a querystring\n * Returns string representation of the object\n *\n * @param {Object}\n * @api private\n */\nexport function encode(obj) {\n    let str = '';\n    for (let i in obj) {\n        if (obj.hasOwnProperty(i)) {\n            if (str.length)\n                str += '&';\n            str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);\n        }\n    }\n    return str;\n}\n/**\n * Parses a simple querystring into an object\n *\n * @param {String} qs\n * @api private\n */\nexport function decode(qs) {\n    let qry = {};\n    let pairs = qs.split('&');\n    for (let i = 0, l = pairs.length; i < l; i++) {\n        let pair = pairs[i].split('=');\n        qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);\n    }\n    return qry;\n}\n", "import { decodePacket } from \"engine.io-parser\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions } from \"./util.js\";\nimport { encode } from \"./contrib/parseqs.js\";\nexport class TransportError extends Error {\n    constructor(reason, description, context) {\n        super(reason);\n        this.description = description;\n        this.context = context;\n        this.type = \"TransportError\";\n    }\n}\nexport class Transport extends Emitter {\n    /**\n     * Transport abstract constructor.\n     *\n     * @param {Object} opts - options\n     * @protected\n     */\n    constructor(opts) {\n        super();\n        this.writable = false;\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.query = opts.query;\n        this.socket = opts.socket;\n    }\n    /**\n     * Emits an error.\n     *\n     * @param {String} reason\n     * @param description\n     * @param context - the error context\n     * @return {Transport} for chaining\n     * @protected\n     */\n    onError(reason, description, context) {\n        super.emitReserved(\"error\", new TransportError(reason, description, context));\n        return this;\n    }\n    /**\n     * Opens the transport.\n     */\n    open() {\n        this.readyState = \"opening\";\n        this.doOpen();\n        return this;\n    }\n    /**\n     * Closes the transport.\n     */\n    close() {\n        if (this.readyState === \"opening\" || this.readyState === \"open\") {\n            this.doClose();\n            this.onClose();\n        }\n        return this;\n    }\n    /**\n     * Sends multiple packets.\n     *\n     * @param {Array} packets\n     */\n    send(packets) {\n        if (this.readyState === \"open\") {\n            this.write(packets);\n        }\n        else {\n            // this might happen if the transport was silently closed in the beforeunload event handler\n        }\n    }\n    /**\n     * Called upon open\n     *\n     * @protected\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        this.writable = true;\n        super.emitReserved(\"open\");\n    }\n    /**\n     * Called with data.\n     *\n     * @param {String} data\n     * @protected\n     */\n    onData(data) {\n        const packet = decodePacket(data, this.socket.binaryType);\n        this.onPacket(packet);\n    }\n    /**\n     * Called with a decoded packet.\n     *\n     * @protected\n     */\n    onPacket(packet) {\n        super.emitReserved(\"packet\", packet);\n    }\n    /**\n     * Called upon close.\n     *\n     * @protected\n     */\n    onClose(details) {\n        this.readyState = \"closed\";\n        super.emitReserved(\"close\", details);\n    }\n    /**\n     * Pauses the transport, in order not to lose packets during an upgrade.\n     *\n     * @param onPause\n     */\n    pause(onPause) { }\n    createUri(schema, query = {}) {\n        return (schema +\n            \"://\" +\n            this._hostname() +\n            this._port() +\n            this.opts.path +\n            this._query(query));\n    }\n    _hostname() {\n        const hostname = this.opts.hostname;\n        return hostname.indexOf(\":\") === -1 ? hostname : \"[\" + hostname + \"]\";\n    }\n    _port() {\n        if (this.opts.port &&\n            ((this.opts.secure && Number(this.opts.port !== 443)) ||\n                (!this.opts.secure && Number(this.opts.port) !== 80))) {\n            return \":\" + this.opts.port;\n        }\n        else {\n            return \"\";\n        }\n    }\n    _query(query) {\n        const encodedQuery = encode(query);\n        return encodedQuery.length ? \"?\" + encodedQuery : \"\";\n    }\n}\n", "// imported from https://github.com/unshiftio/yeast\n'use strict';\nconst alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split(''), length = 64, map = {};\nlet seed = 0, i = 0, prev;\n/**\n * Return a string representing the specified number.\n *\n * @param {Number} num The number to convert.\n * @returns {String} The string representation of the number.\n * @api public\n */\nexport function encode(num) {\n    let encoded = '';\n    do {\n        encoded = alphabet[num % length] + encoded;\n        num = Math.floor(num / length);\n    } while (num > 0);\n    return encoded;\n}\n/**\n * Return the integer value specified by the given string.\n *\n * @param {String} str The string to convert.\n * @returns {Number} The integer value represented by the string.\n * @api public\n */\nexport function decode(str) {\n    let decoded = 0;\n    for (i = 0; i < str.length; i++) {\n        decoded = decoded * length + map[str.charAt(i)];\n    }\n    return decoded;\n}\n/**\n * Yeast: A tiny growing id generator.\n *\n * @returns {String} A unique id.\n * @api public\n */\nexport function yeast() {\n    const now = encode(+new Date());\n    if (now !== prev)\n        return seed = 0, prev = now;\n    return now + '.' + encode(seed++);\n}\n//\n// Map each character to its index.\n//\nfor (; i < length; i++)\n    map[alphabet[i]] = i;\n", "// imported from https://github.com/component/has-cors\nlet value = false;\ntry {\n    value = typeof XMLHttpRequest !== 'undefined' &&\n        'withCredentials' in new XMLHttpRequest();\n}\ncatch (err) {\n    // if XMLHttp support is disabled in IE then it will throw\n    // when trying to create\n}\nexport const hasCORS = value;\n", "// browser shim for xmlhttprequest module\nimport { hasCORS } from \"../contrib/has-cors.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nexport function XHR(opts) {\n    const xdomain = opts.xdomain;\n    // XMLHttpRequest can be disabled on IE\n    try {\n        if (\"undefined\" !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {\n            return new XMLHttpRequest();\n        }\n    }\n    catch (e) { }\n    if (!xdomain) {\n        try {\n            return new globalThis[[\"Active\"].concat(\"Object\").join(\"X\")](\"Microsoft.XMLHTTP\");\n        }\n        catch (e) { }\n    }\n}\nexport function createCookieJar() { }\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { encodePayload, decodePayload } from \"engine.io-parser\";\nimport { createCookieJar, XHR as XMLHttpRequest, } from \"./xmlhttprequest.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions, pick } from \"../util.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nfunction empty() { }\nconst hasXHR2 = (function () {\n    const xhr = new XMLHttpRequest({\n        xdomain: false,\n    });\n    return null != xhr.responseType;\n})();\nexport class Polling extends Transport {\n    /**\n     * XHR Polling constructor.\n     *\n     * @param {Object} opts\n     * @package\n     */\n    constructor(opts) {\n        super(opts);\n        this.polling = false;\n        if (typeof location !== \"undefined\") {\n            const isSSL = \"https:\" === location.protocol;\n            let port = location.port;\n            // some user agents have empty `location.port`\n            if (!port) {\n                port = isSSL ? \"443\" : \"80\";\n            }\n            this.xd =\n                (typeof location !== \"undefined\" &&\n                    opts.hostname !== location.hostname) ||\n                    port !== opts.port;\n        }\n        /**\n         * XHR supports binary\n         */\n        const forceBase64 = opts && opts.forceBase64;\n        this.supportsBinary = hasXHR2 && !forceBase64;\n        if (this.opts.withCredentials) {\n            this.cookieJar = createCookieJar();\n        }\n    }\n    get name() {\n        return \"polling\";\n    }\n    /**\n     * Opens the socket (triggers polling). We write a PING message to determine\n     * when the transport is open.\n     *\n     * @protected\n     */\n    doOpen() {\n        this.poll();\n    }\n    /**\n     * Pauses polling.\n     *\n     * @param {Function} onPause - callback upon buffers are flushed and transport is paused\n     * @package\n     */\n    pause(onPause) {\n        this.readyState = \"pausing\";\n        const pause = () => {\n            this.readyState = \"paused\";\n            onPause();\n        };\n        if (this.polling || !this.writable) {\n            let total = 0;\n            if (this.polling) {\n                total++;\n                this.once(\"pollComplete\", function () {\n                    --total || pause();\n                });\n            }\n            if (!this.writable) {\n                total++;\n                this.once(\"drain\", function () {\n                    --total || pause();\n                });\n            }\n        }\n        else {\n            pause();\n        }\n    }\n    /**\n     * Starts polling cycle.\n     *\n     * @private\n     */\n    poll() {\n        this.polling = true;\n        this.doPoll();\n        this.emitReserved(\"poll\");\n    }\n    /**\n     * Overloads onData to detect payloads.\n     *\n     * @protected\n     */\n    onData(data) {\n        const callback = (packet) => {\n            // if its the first message we consider the transport open\n            if (\"opening\" === this.readyState && packet.type === \"open\") {\n                this.onOpen();\n            }\n            // if its a close packet, we close the ongoing requests\n            if (\"close\" === packet.type) {\n                this.onClose({ description: \"transport closed by the server\" });\n                return false;\n            }\n            // otherwise bypass onData and handle the message\n            this.onPacket(packet);\n        };\n        // decode payload\n        decodePayload(data, this.socket.binaryType).forEach(callback);\n        // if an event did not trigger closing\n        if (\"closed\" !== this.readyState) {\n            // if we got data we're not polling\n            this.polling = false;\n            this.emitReserved(\"pollComplete\");\n            if (\"open\" === this.readyState) {\n                this.poll();\n            }\n            else {\n            }\n        }\n    }\n    /**\n     * For polling, send a close packet.\n     *\n     * @protected\n     */\n    doClose() {\n        const close = () => {\n            this.write([{ type: \"close\" }]);\n        };\n        if (\"open\" === this.readyState) {\n            close();\n        }\n        else {\n            // in case we're trying to close while\n            // handshaking is in progress (GH-164)\n            this.once(\"open\", close);\n        }\n    }\n    /**\n     * Writes a packets payload.\n     *\n     * @param {Array} packets - data packets\n     * @protected\n     */\n    write(packets) {\n        this.writable = false;\n        encodePayload(packets, (data) => {\n            this.doWrite(data, () => {\n                this.writable = true;\n                this.emitReserved(\"drain\");\n            });\n        });\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"https\" : \"http\";\n        const query = this.query || {};\n        // cache busting is forced\n        if (false !== this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        if (!this.supportsBinary && !query.sid) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Creates a request.\n     *\n     * @param {String} method\n     * @private\n     */\n    request(opts = {}) {\n        Object.assign(opts, { xd: this.xd, cookieJar: this.cookieJar }, this.opts);\n        return new Request(this.uri(), opts);\n    }\n    /**\n     * Sends data.\n     *\n     * @param {String} data to send.\n     * @param {Function} called upon flush.\n     * @private\n     */\n    doWrite(data, fn) {\n        const req = this.request({\n            method: \"POST\",\n            data: data,\n        });\n        req.on(\"success\", fn);\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr post error\", xhrStatus, context);\n        });\n    }\n    /**\n     * Starts a poll cycle.\n     *\n     * @private\n     */\n    doPoll() {\n        const req = this.request();\n        req.on(\"data\", this.onData.bind(this));\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr poll error\", xhrStatus, context);\n        });\n        this.pollXhr = req;\n    }\n}\nexport class Request extends Emitter {\n    /**\n     * Request constructor\n     *\n     * @param {Object} options\n     * @package\n     */\n    constructor(uri, opts) {\n        super();\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.method = opts.method || \"GET\";\n        this.uri = uri;\n        this.data = undefined !== opts.data ? opts.data : null;\n        this.create();\n    }\n    /**\n     * Creates the XHR object and sends the request.\n     *\n     * @private\n     */\n    create() {\n        var _a;\n        const opts = pick(this.opts, \"agent\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"autoUnref\");\n        opts.xdomain = !!this.opts.xd;\n        const xhr = (this.xhr = new XMLHttpRequest(opts));\n        try {\n            xhr.open(this.method, this.uri, true);\n            try {\n                if (this.opts.extraHeaders) {\n                    xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);\n                    for (let i in this.opts.extraHeaders) {\n                        if (this.opts.extraHeaders.hasOwnProperty(i)) {\n                            xhr.setRequestHeader(i, this.opts.extraHeaders[i]);\n                        }\n                    }\n                }\n            }\n            catch (e) { }\n            if (\"POST\" === this.method) {\n                try {\n                    xhr.setRequestHeader(\"Content-type\", \"text/plain;charset=UTF-8\");\n                }\n                catch (e) { }\n            }\n            try {\n                xhr.setRequestHeader(\"Accept\", \"*/*\");\n            }\n            catch (e) { }\n            (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.addCookies(xhr);\n            // ie6 check\n            if (\"withCredentials\" in xhr) {\n                xhr.withCredentials = this.opts.withCredentials;\n            }\n            if (this.opts.requestTimeout) {\n                xhr.timeout = this.opts.requestTimeout;\n            }\n            xhr.onreadystatechange = () => {\n                var _a;\n                if (xhr.readyState === 3) {\n                    (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.parseCookies(xhr);\n                }\n                if (4 !== xhr.readyState)\n                    return;\n                if (200 === xhr.status || 1223 === xhr.status) {\n                    this.onLoad();\n                }\n                else {\n                    // make sure the `error` event handler that's user-set\n                    // does not throw in the same tick and gets caught here\n                    this.setTimeoutFn(() => {\n                        this.onError(typeof xhr.status === \"number\" ? xhr.status : 0);\n                    }, 0);\n                }\n            };\n            xhr.send(this.data);\n        }\n        catch (e) {\n            // Need to defer since .create() is called directly from the constructor\n            // and thus the 'error' event can only be only bound *after* this exception\n            // occurs.  Therefore, also, we cannot throw here at all.\n            this.setTimeoutFn(() => {\n                this.onError(e);\n            }, 0);\n            return;\n        }\n        if (typeof document !== \"undefined\") {\n            this.index = Request.requestsCount++;\n            Request.requests[this.index] = this;\n        }\n    }\n    /**\n     * Called upon error.\n     *\n     * @private\n     */\n    onError(err) {\n        this.emitReserved(\"error\", err, this.xhr);\n        this.cleanup(true);\n    }\n    /**\n     * Cleans up house.\n     *\n     * @private\n     */\n    cleanup(fromError) {\n        if (\"undefined\" === typeof this.xhr || null === this.xhr) {\n            return;\n        }\n        this.xhr.onreadystatechange = empty;\n        if (fromError) {\n            try {\n                this.xhr.abort();\n            }\n            catch (e) { }\n        }\n        if (typeof document !== \"undefined\") {\n            delete Request.requests[this.index];\n        }\n        this.xhr = null;\n    }\n    /**\n     * Called upon load.\n     *\n     * @private\n     */\n    onLoad() {\n        const data = this.xhr.responseText;\n        if (data !== null) {\n            this.emitReserved(\"data\", data);\n            this.emitReserved(\"success\");\n            this.cleanup();\n        }\n    }\n    /**\n     * Aborts the request.\n     *\n     * @package\n     */\n    abort() {\n        this.cleanup();\n    }\n}\nRequest.requestsCount = 0;\nRequest.requests = {};\n/**\n * Aborts pending requests when unloading the window. This is needed to prevent\n * memory leaks (e.g. when using IE) and to ensure that no spurious error is\n * emitted.\n */\nif (typeof document !== \"undefined\") {\n    // @ts-ignore\n    if (typeof attachEvent === \"function\") {\n        // @ts-ignore\n        attachEvent(\"onunload\", unloadHandler);\n    }\n    else if (typeof addEventListener === \"function\") {\n        const terminationEvent = \"onpagehide\" in globalThis ? \"pagehide\" : \"unload\";\n        addEventListener(terminationEvent, unloadHandler, false);\n    }\n}\nfunction unloadHandler() {\n    for (let i in Request.requests) {\n        if (Request.requests.hasOwnProperty(i)) {\n            Request.requests[i].abort();\n        }\n    }\n}\n", "import { globalThisShim as globalThis } from \"../globalThis.js\";\nexport const nextTick = (() => {\n    const isPromiseAvailable = typeof Promise === \"function\" && typeof Promise.resolve === \"function\";\n    if (isPromiseAvailable) {\n        return (cb) => Promise.resolve().then(cb);\n    }\n    else {\n        return (cb, setTimeoutFn) => setTimeoutFn(cb, 0);\n    }\n})();\nexport const WebSocket = globalThis.WebSocket || globalThis.MozWebSocket;\nexport const usingBrowserWebSocket = true;\nexport const defaultBinaryType = \"arraybuffer\";\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { pick } from \"../util.js\";\nimport { nextTick, usingBrowserWebSocket, WebSocket, } from \"./websocket-constructor.js\";\nimport { encodePacket } from \"engine.io-parser\";\n// detect ReactNative environment\nconst isReactNative = typeof navigator !== \"undefined\" &&\n    typeof navigator.product === \"string\" &&\n    navigator.product.toLowerCase() === \"reactnative\";\nexport class WS extends Transport {\n    /**\n     * WebSocket transport constructor.\n     *\n     * @param {Object} opts - connection options\n     * @protected\n     */\n    constructor(opts) {\n        super(opts);\n        this.supportsBinary = !opts.forceBase64;\n    }\n    get name() {\n        return \"websocket\";\n    }\n    doOpen() {\n        if (!this.check()) {\n            // let probe timeout\n            return;\n        }\n        const uri = this.uri();\n        const protocols = this.opts.protocols;\n        // React Native only supports the 'headers' option, and will print a warning if anything else is passed\n        const opts = isReactNative\n            ? {}\n            : pick(this.opts, \"agent\", \"perMessageDeflate\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"localAddress\", \"protocolVersion\", \"origin\", \"maxPayload\", \"family\", \"checkServerIdentity\");\n        if (this.opts.extraHeaders) {\n            opts.headers = this.opts.extraHeaders;\n        }\n        try {\n            this.ws =\n                usingBrowserWebSocket && !isReactNative\n                    ? protocols\n                        ? new WebSocket(uri, protocols)\n                        : new WebSocket(uri)\n                    : new WebSocket(uri, protocols, opts);\n        }\n        catch (err) {\n            return this.emitReserved(\"error\", err);\n        }\n        this.ws.binaryType = this.socket.binaryType;\n        this.addEventListeners();\n    }\n    /**\n     * Adds event listeners to the socket\n     *\n     * @private\n     */\n    addEventListeners() {\n        this.ws.onopen = () => {\n            if (this.opts.autoUnref) {\n                this.ws._socket.unref();\n            }\n            this.onOpen();\n        };\n        this.ws.onclose = (closeEvent) => this.onClose({\n            description: \"websocket connection closed\",\n            context: closeEvent,\n        });\n        this.ws.onmessage = (ev) => this.onData(ev.data);\n        this.ws.onerror = (e) => this.onError(\"websocket error\", e);\n    }\n    write(packets) {\n        this.writable = false;\n        // encodePacket efficient as it uses WS framing\n        // no need for encodePayload\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            encodePacket(packet, this.supportsBinary, (data) => {\n                // always create a new object (GH-437)\n                const opts = {};\n                if (!usingBrowserWebSocket) {\n                    if (packet.options) {\n                        opts.compress = packet.options.compress;\n                    }\n                    if (this.opts.perMessageDeflate) {\n                        const len = \n                        // @ts-ignore\n                        \"string\" === typeof data ? Buffer.byteLength(data) : data.length;\n                        if (len < this.opts.perMessageDeflate.threshold) {\n                            opts.compress = false;\n                        }\n                    }\n                }\n                // Sometimes the websocket has already been closed but the browser didn't\n                // have a chance of informing us about it yet, in that case send will\n                // throw an error\n                try {\n                    if (usingBrowserWebSocket) {\n                        // TypeError is thrown when passing the second argument on Safari\n                        this.ws.send(data);\n                    }\n                    else {\n                        this.ws.send(data, opts);\n                    }\n                }\n                catch (e) {\n                }\n                if (lastPacket) {\n                    // fake drain\n                    // defer to next tick to allow Socket to clear writeBuffer\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        if (typeof this.ws !== \"undefined\") {\n            this.ws.close();\n            this.ws = null;\n        }\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"wss\" : \"ws\";\n        const query = this.query || {};\n        // append timestamp to URI\n        if (this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        // communicate binary support capabilities\n        if (!this.supportsBinary) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Feature detection for WebSocket.\n     *\n     * @return {Boolean} whether this transport is available.\n     * @private\n     */\n    check() {\n        return !!WebSocket;\n    }\n}\n", "import { Transport } from \"../transport.js\";\nimport { nextTick } from \"./websocket-constructor.js\";\nimport { createPacketDecoderStream, createPacketEncoderStream, } from \"engine.io-parser\";\nexport class WT extends Transport {\n    get name() {\n        return \"webtransport\";\n    }\n    doOpen() {\n        // @ts-ignore\n        if (typeof WebTransport !== \"function\") {\n            return;\n        }\n        // @ts-ignore\n        this.transport = new WebTransport(this.createUri(\"https\"), this.opts.transportOptions[this.name]);\n        this.transport.closed\n            .then(() => {\n            this.onClose();\n        })\n            .catch((err) => {\n            this.onError(\"webtransport error\", err);\n        });\n        // note: we could have used async/await, but that would require some additional polyfills\n        this.transport.ready.then(() => {\n            this.transport.createBidirectionalStream().then((stream) => {\n                const decoderStream = createPacketDecoderStream(Number.MAX_SAFE_INTEGER, this.socket.binaryType);\n                const reader = stream.readable.pipeThrough(decoderStream).getReader();\n                const encoderStream = createPacketEncoderStream();\n                encoderStream.readable.pipeTo(stream.writable);\n                this.writer = encoderStream.writable.getWriter();\n                const read = () => {\n                    reader\n                        .read()\n                        .then(({ done, value }) => {\n                        if (done) {\n                            return;\n                        }\n                        this.onPacket(value);\n                        read();\n                    })\n                        .catch((err) => {\n                    });\n                };\n                read();\n                const packet = { type: \"open\" };\n                if (this.query.sid) {\n                    packet.data = `{\"sid\":\"${this.query.sid}\"}`;\n                }\n                this.writer.write(packet).then(() => this.onOpen());\n            });\n        });\n    }\n    write(packets) {\n        this.writable = false;\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            this.writer.write(packet).then(() => {\n                if (lastPacket) {\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        var _a;\n        (_a = this.transport) === null || _a === void 0 ? void 0 : _a.close();\n    }\n}\n", "import { Polling } from \"./polling.js\";\nimport { WS } from \"./websocket.js\";\nimport { WT } from \"./webtransport.js\";\nexport const transports = {\n    websocket: WS,\n    webtransport: WT,\n    polling: Polling,\n};\n", "// imported from https://github.com/galkn/parseuri\n/**\n * Parses a URI\n *\n * Note: we could also have used the built-in URL object, but it isn't supported on all platforms.\n *\n * See:\n * - https://developer.mozilla.org/en-US/docs/Web/API/URL\n * - https://caniuse.com/url\n * - https://www.rfc-editor.org/rfc/rfc3986#appendix-B\n *\n * History of the parse() method:\n * - first commit: https://github.com/socketio/socket.io-client/commit/4ee1d5d94b3906a9c052b459f1a818b15f38f91c\n * - export into its own module: https://github.com/socketio/engine.io-client/commit/de2c561e4564efeb78f1bdb1ba39ef81b2822cb3\n * - reimport: https://github.com/socketio/engine.io-client/commit/df32277c3f6d622eec5ed09f493cae3f3391d242\n *\n * @author Steven Levithan <stevenlevithan.com> (MIT license)\n * @api private\n */\nconst re = /^(?:(?![^:@\\/?#]+:[^:@\\/]*@)(http|https|ws|wss):\\/\\/)?((?:(([^:@\\/?#]*)(?::([^:@\\/?#]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\\/?#]*)(?::(\\d*))?)(((\\/(?:[^?#](?![^?#\\/]*\\.[^?#\\/.]+(?:[?#]|$)))*\\/?)?([^?#\\/]*))(?:\\?([^#]*))?(?:#(.*))?)/;\nconst parts = [\n    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'\n];\nexport function parse(str) {\n    if (str.length > 2000) {\n        throw \"URI too long\";\n    }\n    const src = str, b = str.indexOf('['), e = str.indexOf(']');\n    if (b != -1 && e != -1) {\n        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);\n    }\n    let m = re.exec(str || ''), uri = {}, i = 14;\n    while (i--) {\n        uri[parts[i]] = m[i] || '';\n    }\n    if (b != -1 && e != -1) {\n        uri.source = src;\n        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');\n        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');\n        uri.ipv6uri = true;\n    }\n    uri.pathNames = pathNames(uri, uri['path']);\n    uri.queryKey = queryKey(uri, uri['query']);\n    return uri;\n}\nfunction pathNames(obj, path) {\n    const regx = /\\/{2,9}/g, names = path.replace(regx, \"/\").split(\"/\");\n    if (path.slice(0, 1) == '/' || path.length === 0) {\n        names.splice(0, 1);\n    }\n    if (path.slice(-1) == '/') {\n        names.splice(names.length - 1, 1);\n    }\n    return names;\n}\nfunction queryKey(uri, query) {\n    const data = {};\n    query.replace(/(?:^|&)([^&=]*)=?([^&]*)/g, function ($0, $1, $2) {\n        if ($1) {\n            data[$1] = $2;\n        }\n    });\n    return data;\n}\n", "import { transports } from \"./transports/index.js\";\nimport { installTimerFunctions, byteLength } from \"./util.js\";\nimport { decode } from \"./contrib/parseqs.js\";\nimport { parse } from \"./contrib/parseuri.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { protocol } from \"engine.io-parser\";\nimport { defaultBinaryType } from \"./transports/websocket-constructor.js\";\nexport class Socket extends Emitter {\n    /**\n     * Socket constructor.\n     *\n     * @param {String|Object} uri - uri or options\n     * @param {Object} opts - options\n     */\n    constructor(uri, opts = {}) {\n        super();\n        this.binaryType = defaultBinaryType;\n        this.writeBuffer = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = null;\n        }\n        if (uri) {\n            uri = parse(uri);\n            opts.hostname = uri.host;\n            opts.secure = uri.protocol === \"https\" || uri.protocol === \"wss\";\n            opts.port = uri.port;\n            if (uri.query)\n                opts.query = uri.query;\n        }\n        else if (opts.host) {\n            opts.hostname = parse(opts.host).host;\n        }\n        installTimerFunctions(this, opts);\n        this.secure =\n            null != opts.secure\n                ? opts.secure\n                : typeof location !== \"undefined\" && \"https:\" === location.protocol;\n        if (opts.hostname && !opts.port) {\n            // if no port is specified manually, use the protocol default\n            opts.port = this.secure ? \"443\" : \"80\";\n        }\n        this.hostname =\n            opts.hostname ||\n                (typeof location !== \"undefined\" ? location.hostname : \"localhost\");\n        this.port =\n            opts.port ||\n                (typeof location !== \"undefined\" && location.port\n                    ? location.port\n                    : this.secure\n                        ? \"443\"\n                        : \"80\");\n        this.transports = opts.transports || [\n            \"polling\",\n            \"websocket\",\n            \"webtransport\",\n        ];\n        this.writeBuffer = [];\n        this.prevBufferLen = 0;\n        this.opts = Object.assign({\n            path: \"/engine.io\",\n            agent: false,\n            withCredentials: false,\n            upgrade: true,\n            timestampParam: \"t\",\n            rememberUpgrade: false,\n            addTrailingSlash: true,\n            rejectUnauthorized: true,\n            perMessageDeflate: {\n                threshold: 1024,\n            },\n            transportOptions: {},\n            closeOnBeforeunload: false,\n        }, opts);\n        this.opts.path =\n            this.opts.path.replace(/\\/$/, \"\") +\n                (this.opts.addTrailingSlash ? \"/\" : \"\");\n        if (typeof this.opts.query === \"string\") {\n            this.opts.query = decode(this.opts.query);\n        }\n        // set on handshake\n        this.id = null;\n        this.upgrades = null;\n        this.pingInterval = null;\n        this.pingTimeout = null;\n        // set on heartbeat\n        this.pingTimeoutTimer = null;\n        if (typeof addEventListener === \"function\") {\n            if (this.opts.closeOnBeforeunload) {\n                // Firefox closes the connection when the \"beforeunload\" event is emitted but not Chrome. This event listener\n                // ensures every browser behaves the same (no \"disconnect\" event at the Socket.IO level when the page is\n                // closed/reloaded)\n                this.beforeunloadEventListener = () => {\n                    if (this.transport) {\n                        // silently close the transport\n                        this.transport.removeAllListeners();\n                        this.transport.close();\n                    }\n                };\n                addEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n            }\n            if (this.hostname !== \"localhost\") {\n                this.offlineEventListener = () => {\n                    this.onClose(\"transport close\", {\n                        description: \"network connection lost\",\n                    });\n                };\n                addEventListener(\"offline\", this.offlineEventListener, false);\n            }\n        }\n        this.open();\n    }\n    /**\n     * Creates transport of the given type.\n     *\n     * @param {String} name - transport name\n     * @return {Transport}\n     * @private\n     */\n    createTransport(name) {\n        const query = Object.assign({}, this.opts.query);\n        // append engine.io protocol identifier\n        query.EIO = protocol;\n        // transport name\n        query.transport = name;\n        // session id if we already have one\n        if (this.id)\n            query.sid = this.id;\n        const opts = Object.assign({}, this.opts, {\n            query,\n            socket: this,\n            hostname: this.hostname,\n            secure: this.secure,\n            port: this.port,\n        }, this.opts.transportOptions[name]);\n        return new transports[name](opts);\n    }\n    /**\n     * Initializes transport to use and starts probe.\n     *\n     * @private\n     */\n    open() {\n        let transport;\n        if (this.opts.rememberUpgrade &&\n            Socket.priorWebsocketSuccess &&\n            this.transports.indexOf(\"websocket\") !== -1) {\n            transport = \"websocket\";\n        }\n        else if (0 === this.transports.length) {\n            // Emit error on next tick so it can be listened to\n            this.setTimeoutFn(() => {\n                this.emitReserved(\"error\", \"No transports available\");\n            }, 0);\n            return;\n        }\n        else {\n            transport = this.transports[0];\n        }\n        this.readyState = \"opening\";\n        // Retry with the next transport if the transport is disabled (jsonp: false)\n        try {\n            transport = this.createTransport(transport);\n        }\n        catch (e) {\n            this.transports.shift();\n            this.open();\n            return;\n        }\n        transport.open();\n        this.setTransport(transport);\n    }\n    /**\n     * Sets the current transport. Disables the existing one (if any).\n     *\n     * @private\n     */\n    setTransport(transport) {\n        if (this.transport) {\n            this.transport.removeAllListeners();\n        }\n        // set up transport\n        this.transport = transport;\n        // set up transport listeners\n        transport\n            .on(\"drain\", this.onDrain.bind(this))\n            .on(\"packet\", this.onPacket.bind(this))\n            .on(\"error\", this.onError.bind(this))\n            .on(\"close\", (reason) => this.onClose(\"transport close\", reason));\n    }\n    /**\n     * Probes a transport.\n     *\n     * @param {String} name - transport name\n     * @private\n     */\n    probe(name) {\n        let transport = this.createTransport(name);\n        let failed = false;\n        Socket.priorWebsocketSuccess = false;\n        const onTransportOpen = () => {\n            if (failed)\n                return;\n            transport.send([{ type: \"ping\", data: \"probe\" }]);\n            transport.once(\"packet\", (msg) => {\n                if (failed)\n                    return;\n                if (\"pong\" === msg.type && \"probe\" === msg.data) {\n                    this.upgrading = true;\n                    this.emitReserved(\"upgrading\", transport);\n                    if (!transport)\n                        return;\n                    Socket.priorWebsocketSuccess = \"websocket\" === transport.name;\n                    this.transport.pause(() => {\n                        if (failed)\n                            return;\n                        if (\"closed\" === this.readyState)\n                            return;\n                        cleanup();\n                        this.setTransport(transport);\n                        transport.send([{ type: \"upgrade\" }]);\n                        this.emitReserved(\"upgrade\", transport);\n                        transport = null;\n                        this.upgrading = false;\n                        this.flush();\n                    });\n                }\n                else {\n                    const err = new Error(\"probe error\");\n                    // @ts-ignore\n                    err.transport = transport.name;\n                    this.emitReserved(\"upgradeError\", err);\n                }\n            });\n        };\n        function freezeTransport() {\n            if (failed)\n                return;\n            // Any callback called by transport should be ignored since now\n            failed = true;\n            cleanup();\n            transport.close();\n            transport = null;\n        }\n        // Handle any error that happens while probing\n        const onerror = (err) => {\n            const error = new Error(\"probe error: \" + err);\n            // @ts-ignore\n            error.transport = transport.name;\n            freezeTransport();\n            this.emitReserved(\"upgradeError\", error);\n        };\n        function onTransportClose() {\n            onerror(\"transport closed\");\n        }\n        // When the socket is closed while we're probing\n        function onclose() {\n            onerror(\"socket closed\");\n        }\n        // When the socket is upgraded while we're probing\n        function onupgrade(to) {\n            if (transport && to.name !== transport.name) {\n                freezeTransport();\n            }\n        }\n        // Remove all listeners on the transport and on self\n        const cleanup = () => {\n            transport.removeListener(\"open\", onTransportOpen);\n            transport.removeListener(\"error\", onerror);\n            transport.removeListener(\"close\", onTransportClose);\n            this.off(\"close\", onclose);\n            this.off(\"upgrading\", onupgrade);\n        };\n        transport.once(\"open\", onTransportOpen);\n        transport.once(\"error\", onerror);\n        transport.once(\"close\", onTransportClose);\n        this.once(\"close\", onclose);\n        this.once(\"upgrading\", onupgrade);\n        if (this.upgrades.indexOf(\"webtransport\") !== -1 &&\n            name !== \"webtransport\") {\n            // favor WebTransport\n            this.setTimeoutFn(() => {\n                if (!failed) {\n                    transport.open();\n                }\n            }, 200);\n        }\n        else {\n            transport.open();\n        }\n    }\n    /**\n     * Called when connection is deemed open.\n     *\n     * @private\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        Socket.priorWebsocketSuccess = \"websocket\" === this.transport.name;\n        this.emitReserved(\"open\");\n        this.flush();\n        // we check for `readyState` in case an `open`\n        // listener already closed the socket\n        if (\"open\" === this.readyState && this.opts.upgrade) {\n            let i = 0;\n            const l = this.upgrades.length;\n            for (; i < l; i++) {\n                this.probe(this.upgrades[i]);\n            }\n        }\n    }\n    /**\n     * Handles a packet.\n     *\n     * @private\n     */\n    onPacket(packet) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            this.emitReserved(\"packet\", packet);\n            // Socket is live - any packet counts\n            this.emitReserved(\"heartbeat\");\n            this.resetPingTimeout();\n            switch (packet.type) {\n                case \"open\":\n                    this.onHandshake(JSON.parse(packet.data));\n                    break;\n                case \"ping\":\n                    this.sendPacket(\"pong\");\n                    this.emitReserved(\"ping\");\n                    this.emitReserved(\"pong\");\n                    break;\n                case \"error\":\n                    const err = new Error(\"server error\");\n                    // @ts-ignore\n                    err.code = packet.data;\n                    this.onError(err);\n                    break;\n                case \"message\":\n                    this.emitReserved(\"data\", packet.data);\n                    this.emitReserved(\"message\", packet.data);\n                    break;\n            }\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon handshake completion.\n     *\n     * @param {Object} data - handshake obj\n     * @private\n     */\n    onHandshake(data) {\n        this.emitReserved(\"handshake\", data);\n        this.id = data.sid;\n        this.transport.query.sid = data.sid;\n        this.upgrades = this.filterUpgrades(data.upgrades);\n        this.pingInterval = data.pingInterval;\n        this.pingTimeout = data.pingTimeout;\n        this.maxPayload = data.maxPayload;\n        this.onOpen();\n        // In case open handler closes socket\n        if (\"closed\" === this.readyState)\n            return;\n        this.resetPingTimeout();\n    }\n    /**\n     * Sets and resets ping timeout timer based on server pings.\n     *\n     * @private\n     */\n    resetPingTimeout() {\n        this.clearTimeoutFn(this.pingTimeoutTimer);\n        this.pingTimeoutTimer = this.setTimeoutFn(() => {\n            this.onClose(\"ping timeout\");\n        }, this.pingInterval + this.pingTimeout);\n        if (this.opts.autoUnref) {\n            this.pingTimeoutTimer.unref();\n        }\n    }\n    /**\n     * Called on `drain` event\n     *\n     * @private\n     */\n    onDrain() {\n        this.writeBuffer.splice(0, this.prevBufferLen);\n        // setting prevBufferLen = 0 is very important\n        // for example, when upgrading, upgrade packet is sent over,\n        // and a nonzero prevBufferLen could cause problems on `drain`\n        this.prevBufferLen = 0;\n        if (0 === this.writeBuffer.length) {\n            this.emitReserved(\"drain\");\n        }\n        else {\n            this.flush();\n        }\n    }\n    /**\n     * Flush write buffers.\n     *\n     * @private\n     */\n    flush() {\n        if (\"closed\" !== this.readyState &&\n            this.transport.writable &&\n            !this.upgrading &&\n            this.writeBuffer.length) {\n            const packets = this.getWritablePackets();\n            this.transport.send(packets);\n            // keep track of current length of writeBuffer\n            // splice writeBuffer and callbackBuffer on `drain`\n            this.prevBufferLen = packets.length;\n            this.emitReserved(\"flush\");\n        }\n    }\n    /**\n     * Ensure the encoded size of the writeBuffer is below the maxPayload value sent by the server (only for HTTP\n     * long-polling)\n     *\n     * @private\n     */\n    getWritablePackets() {\n        const shouldCheckPayloadSize = this.maxPayload &&\n            this.transport.name === \"polling\" &&\n            this.writeBuffer.length > 1;\n        if (!shouldCheckPayloadSize) {\n            return this.writeBuffer;\n        }\n        let payloadSize = 1; // first packet type\n        for (let i = 0; i < this.writeBuffer.length; i++) {\n            const data = this.writeBuffer[i].data;\n            if (data) {\n                payloadSize += byteLength(data);\n            }\n            if (i > 0 && payloadSize > this.maxPayload) {\n                return this.writeBuffer.slice(0, i);\n            }\n            payloadSize += 2; // separator + packet type\n        }\n        return this.writeBuffer;\n    }\n    /**\n     * Sends a message.\n     *\n     * @param {String} msg - message.\n     * @param {Object} options.\n     * @param {Function} callback function.\n     * @return {Socket} for chaining.\n     */\n    write(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    send(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param {String} type: packet type.\n     * @param {String} data.\n     * @param {Object} options.\n     * @param {Function} fn - callback function.\n     * @private\n     */\n    sendPacket(type, data, options, fn) {\n        if (\"function\" === typeof data) {\n            fn = data;\n            data = undefined;\n        }\n        if (\"function\" === typeof options) {\n            fn = options;\n            options = null;\n        }\n        if (\"closing\" === this.readyState || \"closed\" === this.readyState) {\n            return;\n        }\n        options = options || {};\n        options.compress = false !== options.compress;\n        const packet = {\n            type: type,\n            data: data,\n            options: options,\n        };\n        this.emitReserved(\"packetCreate\", packet);\n        this.writeBuffer.push(packet);\n        if (fn)\n            this.once(\"flush\", fn);\n        this.flush();\n    }\n    /**\n     * Closes the connection.\n     */\n    close() {\n        const close = () => {\n            this.onClose(\"forced close\");\n            this.transport.close();\n        };\n        const cleanupAndClose = () => {\n            this.off(\"upgrade\", cleanupAndClose);\n            this.off(\"upgradeError\", cleanupAndClose);\n            close();\n        };\n        const waitForUpgrade = () => {\n            // wait for upgrade to finish since we can't send packets while pausing a transport\n            this.once(\"upgrade\", cleanupAndClose);\n            this.once(\"upgradeError\", cleanupAndClose);\n        };\n        if (\"opening\" === this.readyState || \"open\" === this.readyState) {\n            this.readyState = \"closing\";\n            if (this.writeBuffer.length) {\n                this.once(\"drain\", () => {\n                    if (this.upgrading) {\n                        waitForUpgrade();\n                    }\n                    else {\n                        close();\n                    }\n                });\n            }\n            else if (this.upgrading) {\n                waitForUpgrade();\n            }\n            else {\n                close();\n            }\n        }\n        return this;\n    }\n    /**\n     * Called upon transport error\n     *\n     * @private\n     */\n    onError(err) {\n        Socket.priorWebsocketSuccess = false;\n        this.emitReserved(\"error\", err);\n        this.onClose(\"transport error\", err);\n    }\n    /**\n     * Called upon transport close.\n     *\n     * @private\n     */\n    onClose(reason, description) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            // clear timers\n            this.clearTimeoutFn(this.pingTimeoutTimer);\n            // stop event from firing again for transport\n            this.transport.removeAllListeners(\"close\");\n            // ensure transport won't stay open\n            this.transport.close();\n            // ignore further transport communication\n            this.transport.removeAllListeners();\n            if (typeof removeEventListener === \"function\") {\n                removeEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n                removeEventListener(\"offline\", this.offlineEventListener, false);\n            }\n            // set ready state\n            this.readyState = \"closed\";\n            // clear session id\n            this.id = null;\n            // emit close event\n            this.emitReserved(\"close\", reason, description);\n            // clean buffers after, so users can still\n            // grab the buffers on `close` event\n            this.writeBuffer = [];\n            this.prevBufferLen = 0;\n        }\n    }\n    /**\n     * Filters upgrades, returning only those matching client transports.\n     *\n     * @param {Array} upgrades - server upgrades\n     * @private\n     */\n    filterUpgrades(upgrades) {\n        const filteredUpgrades = [];\n        let i = 0;\n        const j = upgrades.length;\n        for (; i < j; i++) {\n            if (~this.transports.indexOf(upgrades[i]))\n                filteredUpgrades.push(upgrades[i]);\n        }\n        return filteredUpgrades;\n    }\n}\nSocket.protocol = protocol;\n", "import { Socket } from \"./socket.js\";\nexport { Socket };\nexport const protocol = Socket.protocol;\nexport { Transport, TransportError } from \"./transport.js\";\nexport { transports } from \"./transports/index.js\";\nexport { installTimerFunctions } from \"./util.js\";\nexport { parse } from \"./contrib/parseuri.js\";\nexport { nextTick } from \"./transports/websocket-constructor.js\";\n", "import { parse } from \"engine.io-client\";\n/**\n * URL parser.\n *\n * @param uri - url\n * @param path - the request path of the connection\n * @param loc - An object meant to mimic window.location.\n *        Defaults to window.location.\n * @public\n */\nexport function url(uri, path = \"\", loc) {\n    let obj = uri;\n    // default to window.location\n    loc = loc || (typeof location !== \"undefined\" && location);\n    if (null == uri)\n        uri = loc.protocol + \"//\" + loc.host;\n    // relative path support\n    if (typeof uri === \"string\") {\n        if (\"/\" === uri.charAt(0)) {\n            if (\"/\" === uri.charAt(1)) {\n                uri = loc.protocol + uri;\n            }\n            else {\n                uri = loc.host + uri;\n            }\n        }\n        if (!/^(https?|wss?):\\/\\//.test(uri)) {\n            if (\"undefined\" !== typeof loc) {\n                uri = loc.protocol + \"//\" + uri;\n            }\n            else {\n                uri = \"https://\" + uri;\n            }\n        }\n        // parse\n        obj = parse(uri);\n    }\n    // make sure we treat `localhost:80` and `localhost` equally\n    if (!obj.port) {\n        if (/^(http|ws)$/.test(obj.protocol)) {\n            obj.port = \"80\";\n        }\n        else if (/^(http|ws)s$/.test(obj.protocol)) {\n            obj.port = \"443\";\n        }\n    }\n    obj.path = obj.path || \"/\";\n    const ipv6 = obj.host.indexOf(\":\") !== -1;\n    const host = ipv6 ? \"[\" + obj.host + \"]\" : obj.host;\n    // define unique id\n    obj.id = obj.protocol + \"://\" + host + \":\" + obj.port + path;\n    // define href\n    obj.href =\n        obj.protocol +\n            \"://\" +\n            host +\n            (loc && loc.port === obj.port ? \"\" : \":\" + obj.port);\n    return obj;\n}\n", "import { Emitter } from \"@socket.io/component-emitter\";\nimport { deconstructPacket, reconstructPacket } from \"./binary.js\";\nimport { isBinary, hasBinary } from \"./is-binary.js\";\n/**\n * These strings must not be used as event names, as they have a special meaning.\n */\nconst RESERVED_EVENTS = [\n    \"connect\",\n    \"connect_error\",\n    \"disconnect\",\n    \"disconnecting\",\n    \"newListener\",\n    \"removeListener\", // used by the Node.js EventEmitter\n];\n/**\n * Protocol version.\n *\n * @public\n */\nexport const protocol = 5;\nexport var PacketType;\n(function (PacketType) {\n    PacketType[PacketType[\"CONNECT\"] = 0] = \"CONNECT\";\n    PacketType[PacketType[\"DISCONNECT\"] = 1] = \"DISCONNECT\";\n    PacketType[PacketType[\"EVENT\"] = 2] = \"EVENT\";\n    PacketType[PacketType[\"ACK\"] = 3] = \"ACK\";\n    PacketType[PacketType[\"CONNECT_ERROR\"] = 4] = \"CONNECT_ERROR\";\n    PacketType[PacketType[\"BINARY_EVENT\"] = 5] = \"BINARY_EVENT\";\n    PacketType[PacketType[\"BINARY_ACK\"] = 6] = \"BINARY_ACK\";\n})(PacketType || (PacketType = {}));\n/**\n * A socket.io Encoder instance\n */\nexport class Encoder {\n    /**\n     * Encoder constructor\n     *\n     * @param {function} replacer - custom replacer to pass down to JSON.parse\n     */\n    constructor(replacer) {\n        this.replacer = replacer;\n    }\n    /**\n     * Encode a packet as a single string if non-binary, or as a\n     * buffer sequence, depending on packet type.\n     *\n     * @param {Object} obj - packet object\n     */\n    encode(obj) {\n        if (obj.type === PacketType.EVENT || obj.type === PacketType.ACK) {\n            if (hasBinary(obj)) {\n                return this.encodeAsBinary({\n                    type: obj.type === PacketType.EVENT\n                        ? PacketType.BINARY_EVENT\n                        : PacketType.BINARY_ACK,\n                    nsp: obj.nsp,\n                    data: obj.data,\n                    id: obj.id,\n                });\n            }\n        }\n        return [this.encodeAsString(obj)];\n    }\n    /**\n     * Encode packet as string.\n     */\n    encodeAsString(obj) {\n        // first is type\n        let str = \"\" + obj.type;\n        // attachments if we have them\n        if (obj.type === PacketType.BINARY_EVENT ||\n            obj.type === PacketType.BINARY_ACK) {\n            str += obj.attachments + \"-\";\n        }\n        // if we have a namespace other than `/`\n        // we append it followed by a comma `,`\n        if (obj.nsp && \"/\" !== obj.nsp) {\n            str += obj.nsp + \",\";\n        }\n        // immediately followed by the id\n        if (null != obj.id) {\n            str += obj.id;\n        }\n        // json data\n        if (null != obj.data) {\n            str += JSON.stringify(obj.data, this.replacer);\n        }\n        return str;\n    }\n    /**\n     * Encode packet as 'buffer sequence' by removing blobs, and\n     * deconstructing packet into object with placeholders and\n     * a list of buffers.\n     */\n    encodeAsBinary(obj) {\n        const deconstruction = deconstructPacket(obj);\n        const pack = this.encodeAsString(deconstruction.packet);\n        const buffers = deconstruction.buffers;\n        buffers.unshift(pack); // add packet info to beginning of data list\n        return buffers; // write all the buffers\n    }\n}\n// see https://stackoverflow.com/questions/8511281/check-if-a-value-is-an-object-in-javascript\nfunction isObject(value) {\n    return Object.prototype.toString.call(value) === \"[object Object]\";\n}\n/**\n * A socket.io Decoder instance\n *\n * @return {Object} decoder\n */\nexport class Decoder extends Emitter {\n    /**\n     * Decoder constructor\n     *\n     * @param {function} reviver - custom reviver to pass down to JSON.stringify\n     */\n    constructor(reviver) {\n        super();\n        this.reviver = reviver;\n    }\n    /**\n     * Decodes an encoded packet string into packet JSON.\n     *\n     * @param {String} obj - encoded packet\n     */\n    add(obj) {\n        let packet;\n        if (typeof obj === \"string\") {\n            if (this.reconstructor) {\n                throw new Error(\"got plaintext data when reconstructing a packet\");\n            }\n            packet = this.decodeString(obj);\n            const isBinaryEvent = packet.type === PacketType.BINARY_EVENT;\n            if (isBinaryEvent || packet.type === PacketType.BINARY_ACK) {\n                packet.type = isBinaryEvent ? PacketType.EVENT : PacketType.ACK;\n                // binary packet's json\n                this.reconstructor = new BinaryReconstructor(packet);\n                // no attachments, labeled binary but no binary data to follow\n                if (packet.attachments === 0) {\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n            else {\n                // non-binary full packet\n                super.emitReserved(\"decoded\", packet);\n            }\n        }\n        else if (isBinary(obj) || obj.base64) {\n            // raw binary data\n            if (!this.reconstructor) {\n                throw new Error(\"got binary data when not reconstructing a packet\");\n            }\n            else {\n                packet = this.reconstructor.takeBinaryData(obj);\n                if (packet) {\n                    // received final buffer\n                    this.reconstructor = null;\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n        }\n        else {\n            throw new Error(\"Unknown type: \" + obj);\n        }\n    }\n    /**\n     * Decode a packet String (JSON data)\n     *\n     * @param {String} str\n     * @return {Object} packet\n     */\n    decodeString(str) {\n        let i = 0;\n        // look up type\n        const p = {\n            type: Number(str.charAt(0)),\n        };\n        if (PacketType[p.type] === undefined) {\n            throw new Error(\"unknown packet type \" + p.type);\n        }\n        // look up attachments if type binary\n        if (p.type === PacketType.BINARY_EVENT ||\n            p.type === PacketType.BINARY_ACK) {\n            const start = i + 1;\n            while (str.charAt(++i) !== \"-\" && i != str.length) { }\n            const buf = str.substring(start, i);\n            if (buf != Number(buf) || str.charAt(i) !== \"-\") {\n                throw new Error(\"Illegal attachments\");\n            }\n            p.attachments = Number(buf);\n        }\n        // look up namespace (if any)\n        if (\"/\" === str.charAt(i + 1)) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (\",\" === c)\n                    break;\n                if (i === str.length)\n                    break;\n            }\n            p.nsp = str.substring(start, i);\n        }\n        else {\n            p.nsp = \"/\";\n        }\n        // look up id\n        const next = str.charAt(i + 1);\n        if (\"\" !== next && Number(next) == next) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (null == c || Number(c) != c) {\n                    --i;\n                    break;\n                }\n                if (i === str.length)\n                    break;\n            }\n            p.id = Number(str.substring(start, i + 1));\n        }\n        // look up json data\n        if (str.charAt(++i)) {\n            const payload = this.tryParse(str.substr(i));\n            if (Decoder.isPayloadValid(p.type, payload)) {\n                p.data = payload;\n            }\n            else {\n                throw new Error(\"invalid payload\");\n            }\n        }\n        return p;\n    }\n    tryParse(str) {\n        try {\n            return JSON.parse(str, this.reviver);\n        }\n        catch (e) {\n            return false;\n        }\n    }\n    static isPayloadValid(type, payload) {\n        switch (type) {\n            case PacketType.CONNECT:\n                return isObject(payload);\n            case PacketType.DISCONNECT:\n                return payload === undefined;\n            case PacketType.CONNECT_ERROR:\n                return typeof payload === \"string\" || isObject(payload);\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                return (Array.isArray(payload) &&\n                    (typeof payload[0] === \"number\" ||\n                        (typeof payload[0] === \"string\" &&\n                            RESERVED_EVENTS.indexOf(payload[0]) === -1)));\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                return Array.isArray(payload);\n        }\n    }\n    /**\n     * Deallocates a parser's resources\n     */\n    destroy() {\n        if (this.reconstructor) {\n            this.reconstructor.finishedReconstruction();\n            this.reconstructor = null;\n        }\n    }\n}\n/**\n * A manager of a binary event's 'buffer sequence'. Should\n * be constructed whenever a packet of type BINARY_EVENT is\n * decoded.\n *\n * @param {Object} packet\n * @return {BinaryReconstructor} initialized reconstructor\n */\nclass BinaryReconstructor {\n    constructor(packet) {\n        this.packet = packet;\n        this.buffers = [];\n        this.reconPack = packet;\n    }\n    /**\n     * Method to be called when binary data received from connection\n     * after a BINARY_EVENT packet.\n     *\n     * @param {Buffer | ArrayBuffer} binData - the raw binary data received\n     * @return {null | Object} returns null if more binary data is expected or\n     *   a reconstructed packet object if all buffers have been received.\n     */\n    takeBinaryData(binData) {\n        this.buffers.push(binData);\n        if (this.buffers.length === this.reconPack.attachments) {\n            // done with buffer list\n            const packet = reconstructPacket(this.reconPack, this.buffers);\n            this.finishedReconstruction();\n            return packet;\n        }\n        return null;\n    }\n    /**\n     * Cleans up binary packet reconstruction variables.\n     */\n    finishedReconstruction() {\n        this.reconPack = null;\n        this.buffers = [];\n    }\n}\n", "const withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nconst isView = (obj) => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj.buffer instanceof ArrayBuffer;\n};\nconst toString = Object.prototype.toString;\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeFile = typeof File === \"function\" ||\n    (typeof File !== \"undefined\" &&\n        toString.call(File) === \"[object FileConstructor]\");\n/**\n * Returns true if obj is a Buffer, an ArrayBuffer, a Blob or a File.\n *\n * @private\n */\nexport function isBinary(obj) {\n    return ((withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj))) ||\n        (withNativeBlob && obj instanceof Blob) ||\n        (withNativeFile && obj instanceof File));\n}\nexport function hasBinary(obj, toJSON) {\n    if (!obj || typeof obj !== \"object\") {\n        return false;\n    }\n    if (Array.isArray(obj)) {\n        for (let i = 0, l = obj.length; i < l; i++) {\n            if (hasBinary(obj[i])) {\n                return true;\n            }\n        }\n        return false;\n    }\n    if (isBinary(obj)) {\n        return true;\n    }\n    if (obj.toJSON &&\n        typeof obj.toJSON === \"function\" &&\n        arguments.length === 1) {\n        return hasBinary(obj.toJSON(), true);\n    }\n    for (const key in obj) {\n        if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {\n            return true;\n        }\n    }\n    return false;\n}\n", "import { isBinary } from \"./is-binary.js\";\n/**\n * Replaces every Buffer | ArrayBuffer | Blob | File in packet with a numbered placeholder.\n *\n * @param {Object} packet - socket.io event packet\n * @return {Object} with deconstructed packet and list of buffers\n * @public\n */\nexport function deconstructPacket(packet) {\n    const buffers = [];\n    const packetData = packet.data;\n    const pack = packet;\n    pack.data = _deconstructPacket(packetData, buffers);\n    pack.attachments = buffers.length; // number of binary 'attachments'\n    return { packet: pack, buffers: buffers };\n}\nfunction _deconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (isBinary(data)) {\n        const placeholder = { _placeholder: true, num: buffers.length };\n        buffers.push(data);\n        return placeholder;\n    }\n    else if (Array.isArray(data)) {\n        const newData = new Array(data.length);\n        for (let i = 0; i < data.length; i++) {\n            newData[i] = _deconstructPacket(data[i], buffers);\n        }\n        return newData;\n    }\n    else if (typeof data === \"object\" && !(data instanceof Date)) {\n        const newData = {};\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                newData[key] = _deconstructPacket(data[key], buffers);\n            }\n        }\n        return newData;\n    }\n    return data;\n}\n/**\n * Reconstructs a binary packet from its placeholder packet and buffers\n *\n * @param {Object} packet - event packet with placeholders\n * @param {Array} buffers - binary buffers to put in placeholder positions\n * @return {Object} reconstructed packet\n * @public\n */\nexport function reconstructPacket(packet, buffers) {\n    packet.data = _reconstructPacket(packet.data, buffers);\n    delete packet.attachments; // no longer useful\n    return packet;\n}\nfunction _reconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (data && data._placeholder === true) {\n        const isIndexValid = typeof data.num === \"number\" &&\n            data.num >= 0 &&\n            data.num < buffers.length;\n        if (isIndexValid) {\n            return buffers[data.num]; // appropriate buffer (should be natural order anyway)\n        }\n        else {\n            throw new Error(\"illegal attachments\");\n        }\n    }\n    else if (Array.isArray(data)) {\n        for (let i = 0; i < data.length; i++) {\n            data[i] = _reconstructPacket(data[i], buffers);\n        }\n    }\n    else if (typeof data === \"object\") {\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                data[key] = _reconstructPacket(data[key], buffers);\n            }\n        }\n    }\n    return data;\n}\n", "export function on(obj, ev, fn) {\n    obj.on(ev, fn);\n    return function subDestroy() {\n        obj.off(ev, fn);\n    };\n}\n", "import { PacketType } from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\n/**\n * Internal events.\n * These events can't be emitted by the user.\n */\nconst RESERVED_EVENTS = Object.freeze({\n    connect: 1,\n    connect_error: 1,\n    disconnect: 1,\n    disconnecting: 1,\n    // EventEmitter reserved events: https://nodejs.org/api/events.html#events_event_newlistener\n    newListener: 1,\n    removeListener: 1,\n});\n/**\n * A Socket is the fundamental class for interacting with the server.\n *\n * A Socket belongs to a certain Namespace (by default /) and uses an underlying {@link Manager} to communicate.\n *\n * @example\n * const socket = io();\n *\n * socket.on(\"connect\", () => {\n *   console.log(\"connected\");\n * });\n *\n * // send an event to the server\n * socket.emit(\"foo\", \"bar\");\n *\n * socket.on(\"foobar\", () => {\n *   // an event was received from the server\n * });\n *\n * // upon disconnection\n * socket.on(\"disconnect\", (reason) => {\n *   console.log(`disconnected due to ${reason}`);\n * });\n */\nexport class Socket extends Emitter {\n    /**\n     * `Socket` constructor.\n     */\n    constructor(io, nsp, opts) {\n        super();\n        /**\n         * Whether the socket is currently connected to the server.\n         *\n         * @example\n         * const socket = io();\n         *\n         * socket.on(\"connect\", () => {\n         *   console.log(socket.connected); // true\n         * });\n         *\n         * socket.on(\"disconnect\", () => {\n         *   console.log(socket.connected); // false\n         * });\n         */\n        this.connected = false;\n        /**\n         * Whether the connection state was recovered after a temporary disconnection. In that case, any missed packets will\n         * be transmitted by the server.\n         */\n        this.recovered = false;\n        /**\n         * Buffer for packets received before the CONNECT packet\n         */\n        this.receiveBuffer = [];\n        /**\n         * Buffer for packets that will be sent once the socket is connected\n         */\n        this.sendBuffer = [];\n        /**\n         * The queue of packets to be sent with retry in case of failure.\n         *\n         * Packets are sent one by one, each waiting for the server acknowledgement, in order to guarantee the delivery order.\n         * @private\n         */\n        this._queue = [];\n        /**\n         * A sequence to generate the ID of the {@link QueuedPacket}.\n         * @private\n         */\n        this._queueSeq = 0;\n        this.ids = 0;\n        this.acks = {};\n        this.flags = {};\n        this.io = io;\n        this.nsp = nsp;\n        if (opts && opts.auth) {\n            this.auth = opts.auth;\n        }\n        this._opts = Object.assign({}, opts);\n        if (this.io._autoConnect)\n            this.open();\n    }\n    /**\n     * Whether the socket is currently disconnected\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"connect\", () => {\n     *   console.log(socket.disconnected); // false\n     * });\n     *\n     * socket.on(\"disconnect\", () => {\n     *   console.log(socket.disconnected); // true\n     * });\n     */\n    get disconnected() {\n        return !this.connected;\n    }\n    /**\n     * Subscribe to open, close and packet events\n     *\n     * @private\n     */\n    subEvents() {\n        if (this.subs)\n            return;\n        const io = this.io;\n        this.subs = [\n            on(io, \"open\", this.onopen.bind(this)),\n            on(io, \"packet\", this.onpacket.bind(this)),\n            on(io, \"error\", this.onerror.bind(this)),\n            on(io, \"close\", this.onclose.bind(this)),\n        ];\n    }\n    /**\n     * Whether the Socket will try to reconnect when its Manager connects or reconnects.\n     *\n     * @example\n     * const socket = io();\n     *\n     * console.log(socket.active); // true\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   if (reason === \"io server disconnect\") {\n     *     // the disconnection was initiated by the server, you need to manually reconnect\n     *     console.log(socket.active); // false\n     *   }\n     *   // else the socket will automatically try to reconnect\n     *   console.log(socket.active); // true\n     * });\n     */\n    get active() {\n        return !!this.subs;\n    }\n    /**\n     * \"Opens\" the socket.\n     *\n     * @example\n     * const socket = io({\n     *   autoConnect: false\n     * });\n     *\n     * socket.connect();\n     */\n    connect() {\n        if (this.connected)\n            return this;\n        this.subEvents();\n        if (!this.io[\"_reconnecting\"])\n            this.io.open(); // ensure open\n        if (\"open\" === this.io._readyState)\n            this.onopen();\n        return this;\n    }\n    /**\n     * Alias for {@link connect()}.\n     */\n    open() {\n        return this.connect();\n    }\n    /**\n     * Sends a `message` event.\n     *\n     * This method mimics the WebSocket.send() method.\n     *\n     * @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send\n     *\n     * @example\n     * socket.send(\"hello\");\n     *\n     * // this is equivalent to\n     * socket.emit(\"message\", \"hello\");\n     *\n     * @return self\n     */\n    send(...args) {\n        args.unshift(\"message\");\n        this.emit.apply(this, args);\n        return this;\n    }\n    /**\n     * Override `emit`.\n     * If the event is in `events`, it's emitted normally.\n     *\n     * @example\n     * socket.emit(\"hello\", \"world\");\n     *\n     * // all serializable datastructures are supported (no need to call JSON.stringify)\n     * socket.emit(\"hello\", 1, \"2\", { 3: [\"4\"], 5: Uint8Array.from([6]) });\n     *\n     * // with an acknowledgement from the server\n     * socket.emit(\"hello\", \"world\", (val) => {\n     *   // ...\n     * });\n     *\n     * @return self\n     */\n    emit(ev, ...args) {\n        if (RESERVED_EVENTS.hasOwnProperty(ev)) {\n            throw new Error('\"' + ev.toString() + '\" is a reserved event name');\n        }\n        args.unshift(ev);\n        if (this._opts.retries && !this.flags.fromQueue && !this.flags.volatile) {\n            this._addToQueue(args);\n            return this;\n        }\n        const packet = {\n            type: PacketType.EVENT,\n            data: args,\n        };\n        packet.options = {};\n        packet.options.compress = this.flags.compress !== false;\n        // event ack callback\n        if (\"function\" === typeof args[args.length - 1]) {\n            const id = this.ids++;\n            const ack = args.pop();\n            this._registerAckCallback(id, ack);\n            packet.id = id;\n        }\n        const isTransportWritable = this.io.engine &&\n            this.io.engine.transport &&\n            this.io.engine.transport.writable;\n        const discardPacket = this.flags.volatile && (!isTransportWritable || !this.connected);\n        if (discardPacket) {\n        }\n        else if (this.connected) {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        }\n        else {\n            this.sendBuffer.push(packet);\n        }\n        this.flags = {};\n        return this;\n    }\n    /**\n     * @private\n     */\n    _registerAckCallback(id, ack) {\n        var _a;\n        const timeout = (_a = this.flags.timeout) !== null && _a !== void 0 ? _a : this._opts.ackTimeout;\n        if (timeout === undefined) {\n            this.acks[id] = ack;\n            return;\n        }\n        // @ts-ignore\n        const timer = this.io.setTimeoutFn(() => {\n            delete this.acks[id];\n            for (let i = 0; i < this.sendBuffer.length; i++) {\n                if (this.sendBuffer[i].id === id) {\n                    this.sendBuffer.splice(i, 1);\n                }\n            }\n            ack.call(this, new Error(\"operation has timed out\"));\n        }, timeout);\n        this.acks[id] = (...args) => {\n            // @ts-ignore\n            this.io.clearTimeoutFn(timer);\n            ack.apply(this, [null, ...args]);\n        };\n    }\n    /**\n     * Emits an event and waits for an acknowledgement\n     *\n     * @example\n     * // without timeout\n     * const response = await socket.emitWithAck(\"hello\", \"world\");\n     *\n     * // with a specific timeout\n     * try {\n     *   const response = await socket.timeout(1000).emitWithAck(\"hello\", \"world\");\n     * } catch (err) {\n     *   // the server did not acknowledge the event in the given delay\n     * }\n     *\n     * @return a Promise that will be fulfilled when the server acknowledges the event\n     */\n    emitWithAck(ev, ...args) {\n        // the timeout flag is optional\n        const withErr = this.flags.timeout !== undefined || this._opts.ackTimeout !== undefined;\n        return new Promise((resolve, reject) => {\n            args.push((arg1, arg2) => {\n                if (withErr) {\n                    return arg1 ? reject(arg1) : resolve(arg2);\n                }\n                else {\n                    return resolve(arg1);\n                }\n            });\n            this.emit(ev, ...args);\n        });\n    }\n    /**\n     * Add the packet to the queue.\n     * @param args\n     * @private\n     */\n    _addToQueue(args) {\n        let ack;\n        if (typeof args[args.length - 1] === \"function\") {\n            ack = args.pop();\n        }\n        const packet = {\n            id: this._queueSeq++,\n            tryCount: 0,\n            pending: false,\n            args,\n            flags: Object.assign({ fromQueue: true }, this.flags),\n        };\n        args.push((err, ...responseArgs) => {\n            if (packet !== this._queue[0]) {\n                // the packet has already been acknowledged\n                return;\n            }\n            const hasError = err !== null;\n            if (hasError) {\n                if (packet.tryCount > this._opts.retries) {\n                    this._queue.shift();\n                    if (ack) {\n                        ack(err);\n                    }\n                }\n            }\n            else {\n                this._queue.shift();\n                if (ack) {\n                    ack(null, ...responseArgs);\n                }\n            }\n            packet.pending = false;\n            return this._drainQueue();\n        });\n        this._queue.push(packet);\n        this._drainQueue();\n    }\n    /**\n     * Send the first packet of the queue, and wait for an acknowledgement from the server.\n     * @param force - whether to resend a packet that has not been acknowledged yet\n     *\n     * @private\n     */\n    _drainQueue(force = false) {\n        if (!this.connected || this._queue.length === 0) {\n            return;\n        }\n        const packet = this._queue[0];\n        if (packet.pending && !force) {\n            return;\n        }\n        packet.pending = true;\n        packet.tryCount++;\n        this.flags = packet.flags;\n        this.emit.apply(this, packet.args);\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param packet\n     * @private\n     */\n    packet(packet) {\n        packet.nsp = this.nsp;\n        this.io._packet(packet);\n    }\n    /**\n     * Called upon engine `open`.\n     *\n     * @private\n     */\n    onopen() {\n        if (typeof this.auth == \"function\") {\n            this.auth((data) => {\n                this._sendConnectPacket(data);\n            });\n        }\n        else {\n            this._sendConnectPacket(this.auth);\n        }\n    }\n    /**\n     * Sends a CONNECT packet to initiate the Socket.IO session.\n     *\n     * @param data\n     * @private\n     */\n    _sendConnectPacket(data) {\n        this.packet({\n            type: PacketType.CONNECT,\n            data: this._pid\n                ? Object.assign({ pid: this._pid, offset: this._lastOffset }, data)\n                : data,\n        });\n    }\n    /**\n     * Called upon engine or manager `error`.\n     *\n     * @param err\n     * @private\n     */\n    onerror(err) {\n        if (!this.connected) {\n            this.emitReserved(\"connect_error\", err);\n        }\n    }\n    /**\n     * Called upon engine `close`.\n     *\n     * @param reason\n     * @param description\n     * @private\n     */\n    onclose(reason, description) {\n        this.connected = false;\n        delete this.id;\n        this.emitReserved(\"disconnect\", reason, description);\n    }\n    /**\n     * Called with socket packet.\n     *\n     * @param packet\n     * @private\n     */\n    onpacket(packet) {\n        const sameNamespace = packet.nsp === this.nsp;\n        if (!sameNamespace)\n            return;\n        switch (packet.type) {\n            case PacketType.CONNECT:\n                if (packet.data && packet.data.sid) {\n                    this.onconnect(packet.data.sid, packet.data.pid);\n                }\n                else {\n                    this.emitReserved(\"connect_error\", new Error(\"It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)\"));\n                }\n                break;\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                this.onevent(packet);\n                break;\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                this.onack(packet);\n                break;\n            case PacketType.DISCONNECT:\n                this.ondisconnect();\n                break;\n            case PacketType.CONNECT_ERROR:\n                this.destroy();\n                const err = new Error(packet.data.message);\n                // @ts-ignore\n                err.data = packet.data.data;\n                this.emitReserved(\"connect_error\", err);\n                break;\n        }\n    }\n    /**\n     * Called upon a server event.\n     *\n     * @param packet\n     * @private\n     */\n    onevent(packet) {\n        const args = packet.data || [];\n        if (null != packet.id) {\n            args.push(this.ack(packet.id));\n        }\n        if (this.connected) {\n            this.emitEvent(args);\n        }\n        else {\n            this.receiveBuffer.push(Object.freeze(args));\n        }\n    }\n    emitEvent(args) {\n        if (this._anyListeners && this._anyListeners.length) {\n            const listeners = this._anyListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, args);\n            }\n        }\n        super.emit.apply(this, args);\n        if (this._pid && args.length && typeof args[args.length - 1] === \"string\") {\n            this._lastOffset = args[args.length - 1];\n        }\n    }\n    /**\n     * Produces an ack callback to emit with an event.\n     *\n     * @private\n     */\n    ack(id) {\n        const self = this;\n        let sent = false;\n        return function (...args) {\n            // prevent double callbacks\n            if (sent)\n                return;\n            sent = true;\n            self.packet({\n                type: PacketType.ACK,\n                id: id,\n                data: args,\n            });\n        };\n    }\n    /**\n     * Called upon a server acknowlegement.\n     *\n     * @param packet\n     * @private\n     */\n    onack(packet) {\n        const ack = this.acks[packet.id];\n        if (\"function\" === typeof ack) {\n            ack.apply(this, packet.data);\n            delete this.acks[packet.id];\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon server connect.\n     *\n     * @private\n     */\n    onconnect(id, pid) {\n        this.id = id;\n        this.recovered = pid && this._pid === pid;\n        this._pid = pid; // defined only if connection state recovery is enabled\n        this.connected = true;\n        this.emitBuffered();\n        this.emitReserved(\"connect\");\n        this._drainQueue(true);\n    }\n    /**\n     * Emit buffered events (received and emitted).\n     *\n     * @private\n     */\n    emitBuffered() {\n        this.receiveBuffer.forEach((args) => this.emitEvent(args));\n        this.receiveBuffer = [];\n        this.sendBuffer.forEach((packet) => {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        });\n        this.sendBuffer = [];\n    }\n    /**\n     * Called upon server disconnect.\n     *\n     * @private\n     */\n    ondisconnect() {\n        this.destroy();\n        this.onclose(\"io server disconnect\");\n    }\n    /**\n     * Called upon forced client/server side disconnections,\n     * this method ensures the manager stops tracking us and\n     * that reconnections don't get triggered for this.\n     *\n     * @private\n     */\n    destroy() {\n        if (this.subs) {\n            // clean subscriptions to avoid reconnections\n            this.subs.forEach((subDestroy) => subDestroy());\n            this.subs = undefined;\n        }\n        this.io[\"_destroy\"](this);\n    }\n    /**\n     * Disconnects the socket manually. In that case, the socket will not try to reconnect.\n     *\n     * If this is the last active Socket instance of the {@link Manager}, the low-level connection will be closed.\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   // console.log(reason); prints \"io client disconnect\"\n     * });\n     *\n     * socket.disconnect();\n     *\n     * @return self\n     */\n    disconnect() {\n        if (this.connected) {\n            this.packet({ type: PacketType.DISCONNECT });\n        }\n        // remove socket from pool\n        this.destroy();\n        if (this.connected) {\n            // fire events\n            this.onclose(\"io client disconnect\");\n        }\n        return this;\n    }\n    /**\n     * Alias for {@link disconnect()}.\n     *\n     * @return self\n     */\n    close() {\n        return this.disconnect();\n    }\n    /**\n     * Sets the compress flag.\n     *\n     * @example\n     * socket.compress(false).emit(\"hello\");\n     *\n     * @param compress - if `true`, compresses the sending data\n     * @return self\n     */\n    compress(compress) {\n        this.flags.compress = compress;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the event message will be dropped when this socket is not\n     * ready to send messages.\n     *\n     * @example\n     * socket.volatile.emit(\"hello\"); // the server may or may not receive it\n     *\n     * @returns self\n     */\n    get volatile() {\n        this.flags.volatile = true;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the callback will be called with an error when the\n     * given number of milliseconds have elapsed without an acknowledgement from the server:\n     *\n     * @example\n     * socket.timeout(5000).emit(\"my-event\", (err) => {\n     *   if (err) {\n     *     // the server did not acknowledge the event in the given delay\n     *   }\n     * });\n     *\n     * @returns self\n     */\n    timeout(timeout) {\n        this.flags.timeout = timeout;\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * @example\n     * socket.onAny((event, ...args) => {\n     *   console.log(`got ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * @example\n     * socket.prependAny((event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * }\n     *\n     * socket.onAny(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAny(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAny();\n     *\n     * @param listener\n     */\n    offAny(listener) {\n        if (!this._anyListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAny() {\n        return this._anyListeners || [];\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.onAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.prependAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * }\n     *\n     * socket.onAnyOutgoing(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAnyOutgoing(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAnyOutgoing();\n     *\n     * @param [listener] - the catch-all listener (optional)\n     */\n    offAnyOutgoing(listener) {\n        if (!this._anyOutgoingListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyOutgoingListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyOutgoingListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAnyOutgoing() {\n        return this._anyOutgoingListeners || [];\n    }\n    /**\n     * Notify the listeners for each packet sent\n     *\n     * @param packet\n     *\n     * @private\n     */\n    notifyOutgoingListeners(packet) {\n        if (this._anyOutgoingListeners && this._anyOutgoingListeners.length) {\n            const listeners = this._anyOutgoingListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, packet.data);\n            }\n        }\n    }\n}\n", "/**\n * Initialize backoff timer with `opts`.\n *\n * - `min` initial timeout in milliseconds [100]\n * - `max` max timeout [10000]\n * - `jitter` [0]\n * - `factor` [2]\n *\n * @param {Object} opts\n * @api public\n */\nexport function Backoff(opts) {\n    opts = opts || {};\n    this.ms = opts.min || 100;\n    this.max = opts.max || 10000;\n    this.factor = opts.factor || 2;\n    this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;\n    this.attempts = 0;\n}\n/**\n * Return the backoff duration.\n *\n * @return {Number}\n * @api public\n */\nBackoff.prototype.duration = function () {\n    var ms = this.ms * Math.pow(this.factor, this.attempts++);\n    if (this.jitter) {\n        var rand = Math.random();\n        var deviation = Math.floor(rand * this.jitter * ms);\n        ms = (Math.floor(rand * 10) & 1) == 0 ? ms - deviation : ms + deviation;\n    }\n    return Math.min(ms, this.max) | 0;\n};\n/**\n * Reset the number of attempts.\n *\n * @api public\n */\nBackoff.prototype.reset = function () {\n    this.attempts = 0;\n};\n/**\n * Set the minimum duration\n *\n * @api public\n */\nBackoff.prototype.setMin = function (min) {\n    this.ms = min;\n};\n/**\n * Set the maximum duration\n *\n * @api public\n */\nBackoff.prototype.setMax = function (max) {\n    this.max = max;\n};\n/**\n * Set the jitter\n *\n * @api public\n */\nBackoff.prototype.setJitter = function (jitter) {\n    this.jitter = jitter;\n};\n", "import { Socket as Engine, installTimerFunctions, nextTick, } from \"engine.io-client\";\nimport { Socket } from \"./socket.js\";\nimport * as parser from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Backoff } from \"./contrib/backo2.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\nexport class Manager extends Emitter {\n    constructor(uri, opts) {\n        var _a;\n        super();\n        this.nsps = {};\n        this.subs = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = undefined;\n        }\n        opts = opts || {};\n        opts.path = opts.path || \"/socket.io\";\n        this.opts = opts;\n        installTimerFunctions(this, opts);\n        this.reconnection(opts.reconnection !== false);\n        this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);\n        this.reconnectionDelay(opts.reconnectionDelay || 1000);\n        this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);\n        this.randomizationFactor((_a = opts.randomizationFactor) !== null && _a !== void 0 ? _a : 0.5);\n        this.backoff = new Backoff({\n            min: this.reconnectionDelay(),\n            max: this.reconnectionDelayMax(),\n            jitter: this.randomizationFactor(),\n        });\n        this.timeout(null == opts.timeout ? 20000 : opts.timeout);\n        this._readyState = \"closed\";\n        this.uri = uri;\n        const _parser = opts.parser || parser;\n        this.encoder = new _parser.Encoder();\n        this.decoder = new _parser.Decoder();\n        this._autoConnect = opts.autoConnect !== false;\n        if (this._autoConnect)\n            this.open();\n    }\n    reconnection(v) {\n        if (!arguments.length)\n            return this._reconnection;\n        this._reconnection = !!v;\n        return this;\n    }\n    reconnectionAttempts(v) {\n        if (v === undefined)\n            return this._reconnectionAttempts;\n        this._reconnectionAttempts = v;\n        return this;\n    }\n    reconnectionDelay(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelay;\n        this._reconnectionDelay = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMin(v);\n        return this;\n    }\n    randomizationFactor(v) {\n        var _a;\n        if (v === undefined)\n            return this._randomizationFactor;\n        this._randomizationFactor = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setJitter(v);\n        return this;\n    }\n    reconnectionDelayMax(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelayMax;\n        this._reconnectionDelayMax = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMax(v);\n        return this;\n    }\n    timeout(v) {\n        if (!arguments.length)\n            return this._timeout;\n        this._timeout = v;\n        return this;\n    }\n    /**\n     * Starts trying to reconnect if reconnection is enabled and we have not\n     * started reconnecting yet\n     *\n     * @private\n     */\n    maybeReconnectOnOpen() {\n        // Only try to reconnect if it's the first time we're connecting\n        if (!this._reconnecting &&\n            this._reconnection &&\n            this.backoff.attempts === 0) {\n            // keeps reconnection from firing twice for the same reconnection loop\n            this.reconnect();\n        }\n    }\n    /**\n     * Sets the current transport `socket`.\n     *\n     * @param {Function} fn - optional, callback\n     * @return self\n     * @public\n     */\n    open(fn) {\n        if (~this._readyState.indexOf(\"open\"))\n            return this;\n        this.engine = new Engine(this.uri, this.opts);\n        const socket = this.engine;\n        const self = this;\n        this._readyState = \"opening\";\n        this.skipReconnect = false;\n        // emit `open`\n        const openSubDestroy = on(socket, \"open\", function () {\n            self.onopen();\n            fn && fn();\n        });\n        const onError = (err) => {\n            this.cleanup();\n            this._readyState = \"closed\";\n            this.emitReserved(\"error\", err);\n            if (fn) {\n                fn(err);\n            }\n            else {\n                // Only do this if there is no fn to handle the error\n                this.maybeReconnectOnOpen();\n            }\n        };\n        // emit `error`\n        const errorSub = on(socket, \"error\", onError);\n        if (false !== this._timeout) {\n            const timeout = this._timeout;\n            // set timer\n            const timer = this.setTimeoutFn(() => {\n                openSubDestroy();\n                onError(new Error(\"timeout\"));\n                socket.close();\n            }, timeout);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n        this.subs.push(openSubDestroy);\n        this.subs.push(errorSub);\n        return this;\n    }\n    /**\n     * Alias for open()\n     *\n     * @return self\n     * @public\n     */\n    connect(fn) {\n        return this.open(fn);\n    }\n    /**\n     * Called upon transport open.\n     *\n     * @private\n     */\n    onopen() {\n        // clear old subs\n        this.cleanup();\n        // mark as open\n        this._readyState = \"open\";\n        this.emitReserved(\"open\");\n        // add new subs\n        const socket = this.engine;\n        this.subs.push(on(socket, \"ping\", this.onping.bind(this)), on(socket, \"data\", this.ondata.bind(this)), on(socket, \"error\", this.onerror.bind(this)), on(socket, \"close\", this.onclose.bind(this)), on(this.decoder, \"decoded\", this.ondecoded.bind(this)));\n    }\n    /**\n     * Called upon a ping.\n     *\n     * @private\n     */\n    onping() {\n        this.emitReserved(\"ping\");\n    }\n    /**\n     * Called with data.\n     *\n     * @private\n     */\n    ondata(data) {\n        try {\n            this.decoder.add(data);\n        }\n        catch (e) {\n            this.onclose(\"parse error\", e);\n        }\n    }\n    /**\n     * Called when parser fully decodes a packet.\n     *\n     * @private\n     */\n    ondecoded(packet) {\n        // the nextTick call prevents an exception in a user-provided event listener from triggering a disconnection due to a \"parse error\"\n        nextTick(() => {\n            this.emitReserved(\"packet\", packet);\n        }, this.setTimeoutFn);\n    }\n    /**\n     * Called upon socket error.\n     *\n     * @private\n     */\n    onerror(err) {\n        this.emitReserved(\"error\", err);\n    }\n    /**\n     * Creates a new socket for the given `nsp`.\n     *\n     * @return {Socket}\n     * @public\n     */\n    socket(nsp, opts) {\n        let socket = this.nsps[nsp];\n        if (!socket) {\n            socket = new Socket(this, nsp, opts);\n            this.nsps[nsp] = socket;\n        }\n        else if (this._autoConnect && !socket.active) {\n            socket.connect();\n        }\n        return socket;\n    }\n    /**\n     * Called upon a socket close.\n     *\n     * @param socket\n     * @private\n     */\n    _destroy(socket) {\n        const nsps = Object.keys(this.nsps);\n        for (const nsp of nsps) {\n            const socket = this.nsps[nsp];\n            if (socket.active) {\n                return;\n            }\n        }\n        this._close();\n    }\n    /**\n     * Writes a packet.\n     *\n     * @param packet\n     * @private\n     */\n    _packet(packet) {\n        const encodedPackets = this.encoder.encode(packet);\n        for (let i = 0; i < encodedPackets.length; i++) {\n            this.engine.write(encodedPackets[i], packet.options);\n        }\n    }\n    /**\n     * Clean up transport subscriptions and packet buffer.\n     *\n     * @private\n     */\n    cleanup() {\n        this.subs.forEach((subDestroy) => subDestroy());\n        this.subs.length = 0;\n        this.decoder.destroy();\n    }\n    /**\n     * Close the current socket.\n     *\n     * @private\n     */\n    _close() {\n        this.skipReconnect = true;\n        this._reconnecting = false;\n        this.onclose(\"forced close\");\n        if (this.engine)\n            this.engine.close();\n    }\n    /**\n     * Alias for close()\n     *\n     * @private\n     */\n    disconnect() {\n        return this._close();\n    }\n    /**\n     * Called upon engine close.\n     *\n     * @private\n     */\n    onclose(reason, description) {\n        this.cleanup();\n        this.backoff.reset();\n        this._readyState = \"closed\";\n        this.emitReserved(\"close\", reason, description);\n        if (this._reconnection && !this.skipReconnect) {\n            this.reconnect();\n        }\n    }\n    /**\n     * Attempt a reconnection.\n     *\n     * @private\n     */\n    reconnect() {\n        if (this._reconnecting || this.skipReconnect)\n            return this;\n        const self = this;\n        if (this.backoff.attempts >= this._reconnectionAttempts) {\n            this.backoff.reset();\n            this.emitReserved(\"reconnect_failed\");\n            this._reconnecting = false;\n        }\n        else {\n            const delay = this.backoff.duration();\n            this._reconnecting = true;\n            const timer = this.setTimeoutFn(() => {\n                if (self.skipReconnect)\n                    return;\n                this.emitReserved(\"reconnect_attempt\", self.backoff.attempts);\n                // check again for the case socket closed in above events\n                if (self.skipReconnect)\n                    return;\n                self.open((err) => {\n                    if (err) {\n                        self._reconnecting = false;\n                        self.reconnect();\n                        this.emitReserved(\"reconnect_error\", err);\n                    }\n                    else {\n                        self.onreconnect();\n                    }\n                });\n            }, delay);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n    }\n    /**\n     * Called upon successful reconnect.\n     *\n     * @private\n     */\n    onreconnect() {\n        const attempt = this.backoff.attempts;\n        this._reconnecting = false;\n        this.backoff.reset();\n        this.emitReserved(\"reconnect\", attempt);\n    }\n}\n", "import { url } from \"./url.js\";\nimport { Manager } from \"./manager.js\";\nimport { Socket } from \"./socket.js\";\n/**\n * Managers cache.\n */\nconst cache = {};\nfunction lookup(uri, opts) {\n    if (typeof uri === \"object\") {\n        opts = uri;\n        uri = undefined;\n    }\n    opts = opts || {};\n    const parsed = url(uri, opts.path || \"/socket.io\");\n    const source = parsed.source;\n    const id = parsed.id;\n    const path = parsed.path;\n    const sameNamespace = cache[id] && path in cache[id][\"nsps\"];\n    const newConnection = opts.forceNew ||\n        opts[\"force new connection\"] ||\n        false === opts.multiplex ||\n        sameNamespace;\n    let io;\n    if (newConnection) {\n        io = new Manager(source, opts);\n    }\n    else {\n        if (!cache[id]) {\n            cache[id] = new Manager(source, opts);\n        }\n        io = cache[id];\n    }\n    if (parsed.query && !opts.query) {\n        opts.query = parsed.queryKey;\n    }\n    return io.socket(parsed.path, opts);\n}\n// so that \"lookup\" can be used both as a function (e.g. `io(...)`) and as a\n// namespace (e.g. `io.connect(...)`), for backward compatibility\nObject.assign(lookup, {\n    Manager,\n    Socket,\n    io: lookup,\n    connect: lookup,\n});\n/**\n * Protocol version.\n *\n * @public\n */\nexport { protocol } from \"socket.io-parser\";\n/**\n * Expose constructors for standalone build.\n *\n * @public\n */\nexport { Manager, Socket, lookup as io, lookup as connect, lookup as default, };\n"],
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+  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        this._uiManager(msg)\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += msg.payload\n        if (ui.content) content += ui.content\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    // Namespaces - See https://stackoverflow.com/a/52572048/1309986\n    // const NAMESPACES = {\n    //     svg: 'http://www.w3.org/2000/svg',\n    //     html: 'http://www.w3.org/1999/xhtml',\n    //     xml: 'http://www.w3.org/XML/1998/namespace',\n    //     xlink: 'http://www.w3.org/1999/xlink',\n    //     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n    // }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    /** External alias for _uiComposeComponent\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n\n    } // --- end of _uiManager ---\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName !== null && propName !== '') {\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    // Nightmare of different object types in a DOM Element!\n                    if (prop.constructor.name === 'NamedNodeMap') { // Attributes\n                        const p = {}\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                        out.push(p)\n                    } else if (!prop.constructor.name.toLowerCase().includes('map')) { // Ordinary properties\n                        out.push({\n                            [propName]: prop\n                        })\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                        out.push(p)\n                    }\n                }\n\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n", "/* This is the Front-End JavaScript for uibuilder  in HTML Module form\n  It provides a number of global objects that can be used in your own javascript.\n  see the docs folder `./docs/uibuilder.module.md` for details of how to use this fully.\n\n  Please use the default index.js file for your own code and leave this as-is.\n  See Uib._meta for client version string\n\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n//#region --- Type Defs --- //\n/**\n * A string containing HTML markup\n * @typedef {string} html\n */\n//#endregion --- Type Defs --- //\n\n//#region --- We need the Socket.IO & ui libraries & the uib-var component  --- //\n// @ts-ignore - Note: Only works when using esbuild to bundle\nimport Ui from './ui'\nimport UibVar from '../components/uib-var'\nimport io from 'socket.io-client'\n\n// TODO - Maybe - check if already loaded as window['io']?\n// TODO - Maybe - Should this be moved to inside the class - would know the httpRoot then so less need to guess?\n// TODO           Or, could pull the cookie processing out of the class\n// const ioLocns = [ // Likely locations of the Socket.IO client library\n//     // Where it should normally be\n//     '../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and haven't changed httpNodeRoot\n//     '/uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and have changed httpNodeRoot\n//     '../../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Direct from the Internet - last ditch attempt\n//     'https://cdn.jsdelivr.net/npm/socket.io-client/+esm',\n// ]\n\n// let io\n// for (const locn of ioLocns) {\n//     try {\n//         ({ io } = await import(locn))\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library found at '${locn}'`)()\n//     } catch (e) {\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library not found at '${locn}'`)()\n//     }\n//     if (io) break\n// }\n// if (!io) log('error', 'uibuilder.module.js', 'Socket.IO client failed to load')()\n//#endregion -------- -------- -------- //\n\nconst version = '6.8.0-src'\n\n// TODO Add option to allow log events to be sent back to Node-RED as uib ctrl msgs\n//#region --- Module-level utility functions --- //\n\n// @ts-ignore Detect whether the loaded library is minified or not\nconst isMinified = !(/param/).test(function (param) { }) // eslint-disable-line no-unused-vars\n\n//#region --- print/console - debugging output functions --- //\n\n/** Default log level - Error & Warn */\nlet logLevel = isMinified ? 0 : 1  // When using minified lib, assume production and only log errors otherwise also log warn\n// function changeLogLevel(level) {\n//     logLevel = level\n//     console.trace = logLevel < 4 ? function(){} : console.trace\n//     console.debug = logLevel < 2 ? function(){} : console.debug\n//     if ( logLevel < 1 ) {\n//         console.log = console.group = console.groupEnd =  function(){}\n//     }\n// }\n\n// Experimental\nconst LOG_STYLES = {\n    // 0\n    error: {\n        css: 'background: red; color: black;',\n        txtCss: 'color: red; ',\n        pre: '\u26D4 ',\n        console: 'error',  // or trace\n    },\n    // 1\n    warn: {\n        css: 'background: darkorange; color: black;',\n        txtCss: 'color: darkorange; ',\n        pre: '\u26A0 ',\n        console: 'warn',\n    },\n    // 2\n    info: {\n        css: 'background: aqua; color: black;',\n        txtCss: 'color: aqua;',\n        pre: '\u2757 ',\n        console: 'info',\n    },\n    // 3\n    log: {\n        css: 'background: grey; color: yellow;',\n        txtCss: 'color: grey;',\n        pre: '',\n        console: 'log',\n    },\n    // 4\n    debug: {\n        css: 'background: chartreuse; color: black;',\n        txtCss: 'color: chartreuse;',\n        pre: '',\n        console: 'debug',\n    },\n    // 5\n    trace: {\n        css: 'background: indigo; color: yellow;',\n        txtCss: 'color: hotpink;',\n        pre: '',\n        console: 'log',\n    },\n\n    names: ['error', 'warn', 'info', 'log', 'debug', 'trace'],\n    reset: 'color: inherit;',\n    head: 'font-weight:bold; font-style:italic;',\n    level: 'font-weight:bold; border-radius: 3px; padding: 2px 5px; display:inline-block;',\n}\n/** Custom logging. e.g. log(2, 'here:there', 'jiminy', {fred:'jim'})()\n * @returns {Function} Log function @example log(2, 'here:there', 'jiminy', {fred:'jim'})()\n */\nfunction log() {\n    // Get the args\n    const args = Array.prototype.slice.call(arguments)\n\n    // 1st arg is the log level/type\n    let level = args.shift()\n    let strLevel\n    switch (level) {\n        case 'trace':\n        case 5: {\n            if (logLevel < 5) break\n            level = 5 // make sure level is numeric\n            strLevel = 'trace'\n            break\n        }\n\n        case 'debug':\n        case 4: {\n            if (logLevel < 4) break\n            level = 4\n            strLevel = 'debug'\n            break\n        }\n\n        case 'log':\n        case 3: {\n            if (logLevel < 3) break\n            level = 3\n            strLevel = 'log'\n            break\n        }\n\n        case 'info':\n        case '':\n        case 2: {\n            if (logLevel < 2) break\n            level = 2\n            strLevel = 'info'\n            break\n        }\n\n        case 'warn':\n        case 1: {\n            if (logLevel < 1) break\n            level = 1\n            strLevel = 'warn'\n            break\n        }\n\n        case 'error':\n        case 'err':\n        case 0: {\n            if (logLevel < 0) break\n            level = 0\n            strLevel = 'error'\n            break\n        }\n\n        default: {\n            level = -1\n            break\n        }\n\n    }\n\n    // If set to something unknown, no log output\n    if (strLevel === undefined) return function () { }\n\n    // 2nd arg is a heading that will be colour highlighted\n    const head = args.shift()\n\n    // Bind back to console.log (could use console[strLevel] but some levels ignore some formatting, use console.xxx directly or dedicated fn)\n    return Function.prototype.bind.call(\n        console[LOG_STYLES[strLevel].console],\n        console,\n        `%c${LOG_STYLES[strLevel].pre}${strLevel}%c [${head}]`, `${LOG_STYLES.level} ${LOG_STYLES[strLevel].css}`, `${LOG_STYLES.head} ${LOG_STYLES[strLevel].txtCss}`,\n        ...args\n    )\n}\n//#endregion\n\n/** A hack to dynamically load a remote module and wait until it is loaded\n * @param {string} url The URL of the module to load\n * @returns {object|null} Either the result object or null (if the load fails)\n */\n// function loadModule(url) { // eslint-disable-line no-unused-vars\n//     let done\n\n//     import(url)\n//         .then(res => {\n//             log('debug', '>> then >>', res)()\n//             done = res\n//         })\n//         .catch(err => {\n//             console.error(`[uibuilder:loadModule] Could not load module ${url}`, err)\n//             done = null\n//         })\n\n//     //  eslint-disable-next-line no-empty\n//     while (!done) { } // eslint-disable-line no-unmodified-loop-condition\n\n//     return done\n// }\n\n/** Makes a null or non-object into an object\n * If not null, moves \"thing\" to {payload:thing}\n *\n * @param {*} thing Thing to check\n * @param {string} [property='payload'] property that \"thing\" is moved to if not null and not an object\n * @returns {!object} _\n */\nfunction makeMeAnObject(thing, property) {\n    if (!property) property = 'payload'\n    if (typeof property !== 'string') {\n        log('warn', 'uibuilderfe:makeMeAnObject', `WARNING: property parameter must be a string and not: ${typeof property}`)()\n        property = 'payload'\n    }\n    let out = {}\n    if ( thing !== null && thing.constructor.name === 'Object' ) {\n        out = thing\n    } else if (thing !== null) {\n        out[property] = thing\n    }\n    return out\n} // --- End of make me an object --- //\n\n/** Joins all arguments as a URL string\n * see http://stackoverflow.com/a/28592528/3016654\n * since v1.0.10, fixed potential double // issue\n * arguments {string} URL fragments\n * @returns {string} _\n */\nfunction urlJoin() {\n    const paths = Array.prototype.slice.call(arguments)\n    const url = '/' + paths.map(function (e) {\n        return e.replace(/^\\/|\\/$/g, '')\n    })\n        .filter(function (e) {\n            return e\n        })\n        .join('/')\n    return url.replace('//', '/')\n} // ---- End of urlJoin ---- //\n\n/** Convert JSON to Syntax Highlighted HTML\n * @param {object} json A JSON/JavaScript Object\n * @returns {html} Object reformatted as highlighted HTML\n */\nfunction syntaxHighlight(json) {\n    if (json === undefined) {\n        json = '<span class=\"undefined\">undefined</span>'\n    } else {\n        try {\n            json = JSON.stringify(json, undefined, 4)\n            // json = json.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;') // eslint-disable-line newline-per-chained-call\n            json = json.replace(/(\"(\\\\u[a-zA-Z0-9]{4}|\\\\[^u]|[^\\\\\"])*\"(\\s*:)?|\\b(true|false|null)\\b|-?\\d+(?:\\.\\d*)?(?:[eE][+-]?\\d+)?)/g, function (match) { // eslint-disable-line prefer-named-capture-group\n                let cls = 'number'\n                if ((/^\"/).test(match)) {\n                    if ((/:$/).test(match)) {\n                        cls = 'key'\n                    } else {\n                        cls = 'string'\n                    }\n                } else if ((/true|false/).test(match)) {\n                    cls = 'boolean'\n                } else if ((/null/).test(match)) {\n                    cls = 'null'\n                }\n                return `<span class=\"${cls}\">${match}</span>`\n            })\n        } catch (e) {\n            json = `Syntax Highlight ERROR: ${e.message}`\n        }\n    }\n    return json\n}\n\n/** msg._ui handling functions */\nconst _ui = new Ui(window, log, syntaxHighlight)\n\n//#endregion --- Module-level utility functions --- //\n\n/** Define and export the Uib class - note that an instance of the class is also exported in the wrap-up\n * @typicalname uibuilder\n */\nexport const Uib = class Uib {\n\n    //#region --- Static variables ---\n    static _meta = {\n        version: version,\n        type: 'module',\n        displayName: 'uibuilder',\n    }\n    //#endregion ---- ---- ---- ----\n\n    //#region private class vars\n\n    // How many times has the loaded instance connected to Socket.IO (detect if not a new load?)\n    connectedNum = 0\n    // event listener callbacks by property name\n    // #events = {}\n    // Socket.IO channel names\n    _ioChannels = { control: 'uiBuilderControl', client: 'uiBuilderClient', server: 'uiBuilder' }\n    /** setInterval holder for pings @type {function|undefined} */\n    #pingInterval\n    // onChange event callbacks\n    #propChangeCallbacks = {}\n    // onTopic event callbacks\n    #msgRecvdByTopicCallbacks = {}\n    // Is Vue available?\n    isVue = false\n    // What version? Set in startup if Vue is loaded. Won't always work\n    vueVersion = undefined\n    /** setInterval id holder for Socket.IO checkConnect\n     * @type {number|null}\n     */\n    #timerid = null\n    // Holds the reference ID for the internal msg change event handler so that it can be cancelled\n    #MsgHandler\n    // Placeholder for io.socket - can't make a # var until # fns allowed in all browsers\n    _socket\n    // Placeholder for an observer that watches the whole DOM for changes - can't make a # var until # fns allowed in all browsers\n    _htmlObserver\n    // Has showMsg been turned on?\n    #isShowMsg = false\n    // Has showStatus been turned on?\n    #isShowStatus = false\n    // If true, URL hash changes send msg back to node-red. Controlled by watchUrlHash()\n    #sendUrlHash = false\n    // Externally accessible command functions (NB: Case must match) - remember to update _uibCommand for new commands\n    #extCommands = [\n        'elementExists', 'get', 'getManagedVarList', 'getWatchedVars', 'htmlSend', 'include',\n        'navigate', 'scrollTo', 'set', 'showMsg', 'showStatus', 'uiGet', 'uiWatch', 'watchUrlHash',\n    ]\n\n    /** @type {{[key: string]: string}} Managed uibuilder variables */\n    #managedVars = {}\n\n    // What status variables to show via showStatus()\n    #showStatus = {\n        online: { 'var': 'online', 'label': 'Online?', 'description': 'Is the browser online?', },\n        ioConnected: { 'var': 'ioConnected', 'label': 'Socket.IO connected?', 'description': 'Is Socket.IO connected?', },\n        connectedNum: { 'var': 'connectedNum', 'label': '# reconnections', 'description': 'How many times has Socket.IO had to reconnect since last page load?', },\n\n        clientId: { 'var': 'clientId', 'label': 'Client ID', 'description': 'Static client unique id set in Node-RED. Only changes when browser is restarted.', },\n        tabId: { 'var': 'tabId', 'label': 'Browser tab ID', 'description': 'Static unique id for the browser\\'s current tab', },\n        cookies: { 'var': 'cookies', 'label': 'Cookies', 'description': 'Cookies set in Node-RED', },\n        httpNodeRoot: { 'var': 'httpNodeRoot', 'label': 'httpNodeRoot', 'description': 'From Node-RED\\' settings.js, affects URL\\'s. May be wrong for pages in sub-folders', },\n        pageName: { 'var': 'pageName', 'label': 'Page name', 'description': 'Actual name of this page', },\n\n        ioNamespace: { 'var': 'ioNamespace', 'label': 'SIO namespace', 'description': 'Socket.IO namespace - unique to each uibuilder node instance', },\n        // ioPath: { 'var': 'ioPath', 'label': 'SIO path', 'description': '', }, // no longer needed in the modern client\n        socketError: { 'var': 'socketError', 'label': 'Socket error', 'description': 'If the Socket.IO connection has failed, says why', },\n\n        msgsSent: { 'var': 'msgsSent', 'label': '# msgs sent', 'description': 'How many standard messages have been sent to Node-RED?', },\n        msgsReceived: { 'var': 'msgsReceived', 'label': '# msgs received', 'description': 'How many standard messages have been received from Node-RED?', },\n        msgsSentCtrl: { 'var': 'msgsSentCtrl', 'label': '# control msgs sent', 'description': 'How many control messages have been sent to Node-RED?', },\n        msgsCtrlReceived: { 'var': 'msgsCtrlReceived', 'label': '# control msgs received', 'description': 'How many control messages have been received from Node-RED?', },\n        originator: { 'var': 'originator', 'label': 'Node Originator', 'description': 'If the last msg from Node-RED was from a `uib-sender` node, this will be its node id so that messasges can be returned to it', },\n        topic: { 'var': 'topic', 'label': 'Default topic', 'description': 'Optional default topic to be included in outgoing standard messages', },\n\n        started: { 'var': 'started', 'label': 'Has uibuilder client started?', 'description': 'Whether `uibuilder.start()` ran successfully. This should self-run and should not need to be run manually', },\n        version: { 'var': 'version', 'label': 'uibuilder client version', 'description': 'The version of the loaded uibuilder client library', },\n        serverTimeOffset: { 'var': 'serverTimeOffset', 'label': 'Server time offset (Hrs)', 'description': 'The number of hours difference between the Node-red server and the client', },\n    }\n\n    // Track ui observers (see uiWatch)\n    #uiObservers = {}\n\n    //#endregion\n\n    //#region public class vars\n\n    // TODO Move to proper getters\n    //#region ---- Externally read-only (via .get method) ---- //\n    // version - moved to _meta\n    /** Client ID set by uibuilder on connect */\n    clientId = ''\n    /** The collection of cookies provided by uibuilder */\n    cookies = {}\n    /** Copy of last control msg object received from sever */\n    ctrlMsg = {}\n    /** Is Socket.IO client connected to the server? */\n    ioConnected = false\n    // Is the browser tab containing this page visible or not?\n    isVisible = false\n    // Remember the last page (re)load/navigation type: navigate, reload, back_forward, prerender\n    lastNavType = ''\n    /** Last std msg received from Node-RED */\n    msg = {}\n    /** number of messages sent to server since page load */\n    msgsSent = 0\n    /** number of messages received from server since page load */\n    msgsReceived = 0\n    /** number of control messages sent to server since page load */\n    msgsSentCtrl = 0\n    /** number of control messages received from server since page load */\n    msgsCtrlReceived = 0\n    /** Is the client online or offline? */\n    online = navigator.onLine\n    /** last control msg object sent via uibuilder.send() @since v2.0.0-dev3 */\n    sentCtrlMsg = {}\n    /** last std msg object sent via uibuilder.send() */\n    sentMsg = {}\n    /** placeholder to track time offset from server, see fn socket.on(ioChannels.server ...) */\n    serverTimeOffset = null\n    /** placeholder for a socket error message */\n    socketError = null\n    // tab identifier from session storage\n    tabId = ''\n    // Actual name of current page (set in constructor)\n    pageName = null\n    // Is the DOMPurify library loaded? Updated in start()\n    purify = false\n    // Is the Markdown-IT library loaded? Updated in start()\n    markdown = false\n    // Current URL hash. Initial set is done from start->watchHashChanges via a set to make it watched\n    urlHash = location.hash\n    //#endregion ---- ---- ---- ---- //\n\n    // TODO Move to proper getters/setters\n    //#region ---- Externally Writable (via .set method, read via .get method) ---- //\n    /** Default originator node id - empty string by default\n     * @type {string}\n     */\n    originator = ''\n    /** Default topic - used by send if set and no topic provided\n     * @type {(string|undefined)}\n     */\n    topic = undefined\n    //#endregion ---- ---- ---- ---- //\n\n    //#region ---- These are unlikely to be needed externally: ----\n    autoSendReady = true\n    httpNodeRoot = '' // Node-RED setting (via cookie)\n    ioNamespace = ''\n    ioPath = ''\n    retryFactor = 1.5       // starting delay factor for subsequent reconnect attempts\n    retryMs = 2000          // starting retry ms period for manual socket reconnections workaround\n    storePrefix = 'uib_'    // Prefix for all uib-related localStorage\n    started = false\n    // NOTE: These can only change when a client (re)connects\n    socketOptions = {\n        path: this.ioPath,\n        transports: ['polling', 'websocket'],\n        // Using callback so that they are updated automatically on (re)connect\n        // Only put things in here that will be valid for a websocket connected session\n        auth: (cb) => {\n            cb({ // eslint-disable-line n/no-callback-literal\n                clientVersion: version,\n                clientId: this.clientId,\n                pathName: window.location.pathname,\n                urlParams: Object.fromEntries(new URLSearchParams(location.search)),\n                pageName: this.pageName,\n                tabId: this.tabId,\n                lastNavType: this.lastNavType,\n                connectedNum: ++this.connectedNum,\n                // Used to calculate the diff between the server and client connection timestamps - reported if >1 minute\n                browserConnectTimestamp: (new Date()).toISOString(),\n            })\n        },\n        transportOptions: {\n            // Can only set headers when polling\n            polling: {\n                extraHeaders: {\n                    'x-clientid': `${Uib._meta.displayName}; ${Uib._meta.type}; ${Uib._meta.version}; ${this.clientId}`,\n                }\n            },\n        },\n    }\n    //#endregion -- not external --\n\n    //#endregion --- End of variables ---\n\n    //#region ------- Getters and Setters ------- //\n\n    // Change logging level dynamically (affects both console. and print.)\n    set logLevel(level) { logLevel = level; console.log('%c\u2757 info%c [logLevel]', `${LOG_STYLES.level} ${LOG_STYLES.info.css}`, `${LOG_STYLES.head} ${LOG_STYLES.info.txtCss}`, `Set to ${level} (${LOG_STYLES.names[level]})`) /* changeLogLevel(level)*/ }\n    get logLevel() { return logLevel }\n\n    get meta() { return Uib._meta }\n\n    /** Function to set uibuilder properties to a new value - works on any property except _* or #*\n     * Also triggers any event listeners.\n     * Example: this.set('msg', {topic:'uibuilder', payload:42});\n     * @param {string} prop Any uibuilder property who's name does not start with a _ or #\n     * @param {*} val The set value of the property or a string declaring that a protected property cannot be changed\n     * @param {boolean} [store] If true, the variable is also saved to the browser localStorage if possible\n     * @param {boolean} [autoload] If true & store is true, on load, uib will try to restore the value from the store automatically\n     * @returns {*} Input value\n     */\n    set(prop, val, store = false, autoload = false) {\n        // Check for excluded properties - we don't want people to set these\n        // if (this.#excludedSet.indexOf(prop) !== -1) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:set', `Cannot use set() on protected property \"${prop}\"`)()\n            return `Cannot use set() on protected property \"${prop}\"`\n        }\n\n        // We must add the var to the uibuilder object\n        this[prop] = val\n\n        // Keep track of all managed variables\n        this.#managedVars[prop] = prop\n\n        // If requested, save to store\n        if (store === true) this.setStore(prop, val, autoload)\n\n        log('trace', 'Uib:set', `prop set - prop: ${prop}, val: `, val, ` store: ${store}, autoload: ${autoload}`)()\n\n        // Trigger this prop's event callbacks (listeners which are set by this.onChange)\n        // this.emit(prop, val)\n\n        // trigger an event on the prop name, pass both the name and value to the event details\n        this._dispatchCustomEvent('uibuilder:propertyChanged', { 'prop': prop, 'value': val, 'store': store, 'autoload': autoload })\n\n        return val\n    }\n\n    /** Function to get the value of a uibuilder property\n     * Example: uibuilder.get('msg')\n     * @param {string} prop The name of the property to get as long as it does not start with a _ or #\n     * @returns {*|undefined} The current value of the property\n     */\n    get(prop) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:get', `Cannot use get() on protected property \"${prop}\"`)()\n            return\n        }\n        if (prop === 'version') return Uib._meta.version\n        if (prop === 'msgsCtrl') return this.msgsCtrlReceived\n        if (prop === 'reconnections') return this.connectedNum\n        if (this[prop] === undefined) {\n            log('warn', 'Uib:get', `get() - property \"${prop}\" is undefined`)()\n        }\n        return this[prop]\n    }\n\n    /** Write to localStorage if possible. console error output if can't write\n     * Also uses this.storePrefix\n     * @example\n     *   uibuilder.setStore('fred', 42)\n     *   console.log(uibuilder.getStore('fred'))\n     * @param {string} id localStorage var name to be used (prefixed with 'uib_')\n     * @param {*} value value to write to localstore\n     * @param {boolean} [autoload] If true, on load, uib will try to restore the value from the store\n     * @returns {boolean} True if succeeded else false\n     */\n    setStore(id, value, autoload = false) {\n        let autoVars = {}\n        if (autoload === true) {\n            try {\n                autoVars = this.getStore('_uibAutoloadVars') || {}\n            } catch (e) {}\n        }\n        if (typeof value === 'object') {\n            try {\n                value = JSON.stringify(value)\n            } catch (e) {\n                log('error', 'Uib:setStore', 'Cannot stringify object, not storing. ', e)()\n                return false\n            }\n        }\n        try {\n            localStorage.setItem(this.storePrefix + id, value)\n            if (autoload) {\n                autoVars[id] = id\n                try {\n                    localStorage.setItem(this.storePrefix + '_uibAutoloadVars', JSON.stringify(autoVars))\n                } catch (e) {\n                    log('error', 'Uib:setStore', 'Cannot save autoload list. ', e)()\n                }\n            }\n            this._dispatchCustomEvent('uibuilder:propertyStored', { 'prop': id, 'value': value, 'autoload': autoload })\n            return true\n        } catch (e) {\n            log('error', 'Uib:setStore', 'Cannot write to localStorage. ', e)()\n            return false\n        }\n    } // --- end of setStore --- //\n\n    /** Attempt to get and re-hydrate a key value from localStorage\n     * Note that all uib storage is automatically prefixed using this.storePrefix\n     * @param {*} id The key of the value to attempt to retrieve\n     * @returns {*|null|undefined} The re-hydrated value of the key or null if key not found, undefined on error\n     */\n    getStore(id) {\n        try {\n            // @ts-ignore\n            return JSON.parse(localStorage.getItem(this.storePrefix + id))\n        } catch (e) { }\n        try {\n            return localStorage.getItem(this.storePrefix + id)\n        } catch (e) {\n            return undefined\n        }\n    }\n\n    /** Remove a given id from the uib keys in localStorage\n     * @param {*} id The key to remove\n     */\n    removeStore(id) {\n        try {\n            localStorage.removeItem(this.storePrefix + id)\n        } catch (e) { }\n    }\n\n    /** Returns a list of uibuilder properties (variables) that can be watched with onChange\n     * @returns {{[key: string]: string}} List of uibuilder managed variables\n     */\n    getManagedVarList() {\n        return this.#managedVars\n    }\n\n    getWatchedVars() {\n        return Object.keys(this.#propChangeCallbacks)\n    }\n\n    //#endregion ------- -------- ------- //\n\n    //#region ------- Our own event handling system ---------- //\n\n    // TODO Add option to send event details back to Node-RED as uib ctrl msg\n    /** Standard fn to create a custom event with details & dispatch it\n     * @param {string} title The event name\n     * @param {*} details Any details to pass to event output\n     */\n    _dispatchCustomEvent(title, details) {\n        const event = new CustomEvent(title, { detail: details })\n        document.dispatchEvent(event)\n    }\n\n    // See the this.#propChangeCallbacks & msgRecvdByTopicCallbacks private vars\n\n    /** Register on-change event listeners for uibuilder tracked properties\n     * Make it possible to register a function that will be run when the property changes.\n     * Note that you can create listeners for non-existant properties\n     * @example: uibuilder.onChange('msg', (msg) => { console.log('uibuilder.msg changed! It is now: ', msg) })\n     *\n     * @param {string} prop The property of uibuilder that we want to monitor\n     * @param {Function} callback The function that will run when the property changes, parameter is the new value of the property after change\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelChange if you need to remove a listener\n     */\n    onChange(prop, callback) {\n        // Note: Property does not have to exist yet\n\n        // console.debug(`[Uib:onchange] pushing new callback (event listener) for property: ${prop}`)\n\n        // Create a new array or add to the array of callback functions for the property in the events object\n        // if (this.#events[prop]) {\n        //     this.#events[prop].push(callback)\n        // } else {\n        //     this.#events[prop] = [callback]\n        // }\n\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#propChangeCallbacks[prop]) this.#propChangeCallbacks[prop] = { _nextRef: 1 }\n        else this.#propChangeCallbacks[prop]._nextRef++\n\n        const nextCbRef = this.#propChangeCallbacks[prop]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const propChangeCallback = this.#propChangeCallbacks[prop][nextCbRef] = function propChangeCallback(e) {\n            // If the prop name matches the 1st arg in the onChange fn:\n            if (prop === e.detail.prop) {\n                const value = e.detail.value\n                // console.warn('[Uib:onChange:evt] uibuilder:propertyChanged. ', e.detail)\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(value, value)\n            }\n        }\n\n        document.addEventListener('uibuilder:propertyChanged', propChangeCallback)\n\n        return nextCbRef\n    } // ---- End of onChange() ---- //\n\n    cancelChange(prop, cbRef) {\n        document.removeEventListener('uibuilder:propertyChanged', this.#propChangeCallbacks[prop][cbRef])\n        delete this.#propChangeCallbacks[prop][cbRef]\n        // this.#propChangeCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Register a change callback for a specific msg.topic\n     * Similar to onChange but more convenient if needing to differentiate by msg.topic.\n     * @example: let otRef = uibuilder.onTopic('mytopic', function(){ console.log('Received a msg with msg.topic=`mytopic`. msg: ', this) })\n     * To cancel a change listener: uibuilder.cancelTopic('mytopic', otRef)\n     *\n     * @param {string} topic The msg.topic we want to listen for\n     * @param {Function} callback The function that will run when an appropriate msg is received. `this` inside the callback as well as the cb's single argument is the received msg.\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelTopic if you need to remove a listener\n     */\n    onTopic(topic, callback) {\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#msgRecvdByTopicCallbacks[topic]) this.#msgRecvdByTopicCallbacks[topic] = { _nextRef: 1 }\n        else this.#msgRecvdByTopicCallbacks[topic]._nextRef++\n\n        const nextCbRef = this.#msgRecvdByTopicCallbacks[topic]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const msgRecvdEvtCallback = this.#msgRecvdByTopicCallbacks[topic][nextCbRef] = function msgRecvdEvtCallback(e) {\n            const msg = e.detail\n            // console.log('[Uib:onTopic:evt] uibuilder:stdMsgReceived where topic matches. ', e.detail)\n            if (msg.topic === topic) {\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(msg, msg)\n            }\n        }\n\n        document.addEventListener('uibuilder:stdMsgReceived', msgRecvdEvtCallback)\n\n        return nextCbRef\n    }\n\n    cancelTopic(topic, cbRef) {\n        document.removeEventListener('uibuilder:stdMsgReceived', this.#msgRecvdByTopicCallbacks[topic][cbRef])\n        delete this.#msgRecvdByTopicCallbacks[topic][cbRef]\n        // this.#msgRecvdCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Trigger event listener for a given property\n     * Called when uibuilder.set is used\n     *\n     * @param {*} prop The property for which to run the callback functions\n     * arguments: Additional arguments contain the value to pass to the event callback (e.g. newValue)\n     */\n    // emit(prop) {\n    //     var evt = this.#events[prop]\n    //     if (!evt) {\n    //         return\n    //     }\n    //     var args = Array.prototype.slice.call(arguments, 1)\n    //     for (var i = 0; i < evt.length; i++) {\n    //         evt[i].apply(this, args)\n    //     }\n    //     log('trace', 'Uib:emit', `${evt.length} listeners run for prop ${prop} `)()\n    // }\n\n    /** Forcibly removes all event listeners from the events array\n     * Use if you need to re-initialise the environment\n     */\n    // clearEventListeners() {\n    //     this.#events = []\n    // } // ---- End of clearEventListeners() ---- //\n\n    /** Clear a single property event listeners\n     * @param {string} prop The property of uibuilder for which we want to clear the event listener\n     */\n    // clearListener(prop) {\n    //     if (this.#events[prop]) delete this.#events[prop]\n    // }\n\n    //#endregion ---------- End of event handling system ---------- //\n\n    //#region ------- General Utility Functions -------- //\n\n    /** Check supplied msg from server for a timestamp - if received, work out & store difference to browser time\n     * @param {object} receivedMsg A message object recieved from Node-RED\n     * @returns {void} Updates self.serverTimeOffset if different to previous value\n     */\n    _checkTimestamp(receivedMsg) {\n        if (Object.prototype.hasOwnProperty.call(receivedMsg, 'serverTimestamp')) {\n            const serverTimestamp = new Date(receivedMsg.serverTimestamp)\n            // @ts-ignore\n            const offset = Math.round(((new Date()) - serverTimestamp) / 3600000) // in ms /3.6m to get hours\n            if (offset !== this.serverTimeOffset) {\n                log('trace', `Uib:checkTimestamp:${this._ioChannels.server} (server)`, `Offset changed to: ${offset} from: ${this.serverTimeOffset}`)()\n                this.set('serverTimeOffset', offset)\n            }\n        }\n    }\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {*} Selected HTML element or null\n     */\n    $(cssSelector) {\n        /** @type {*} Some kind of HTML element */\n        let el = document.querySelector(cssSelector)\n\n        if (!el) {\n            log(1, 'Uib:$', `No element found for CSS selector ${cssSelector}`)()\n            return null\n        }\n\n        if ( el.nodeName === 'TEMPLATE' ) {\n            el = el.content.firstElementChild\n            if (!el) {\n                log(0, 'Uib:$', `Template selected for CSS selector ${cssSelector} but it is empty`)()\n                return null\n            }\n        }\n\n        return el\n    }\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {*} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {Array} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$(cssSelector) {\n        return Array.from(document.querySelectorAll(cssSelector))\n    }\n\n    /** Set the default originator. Set to '' to ignore. Used with uib-sender.\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    setOriginator(originator = '') {\n        this.set('originator', originator)\n    } // ---- End of setOriginator ---- //\n\n    /** HTTP Ping/Keep-alive - makes a call back to uibuilder's ExpressJS server and receives a 204 response\n     * Can be used to keep sessions alive.\n     * @example\n     *   uibuilder.setPing(2000) // repeat every 2 sec. Re-issue with ping(0) to turn off repeat.\n     *   uibuilder.onChange('ping', function(data) {\n     *      console.log('pinger', data)\n     *   })\n     * @param {number} ms Repeat interval in ms\n     */\n    setPing(ms = 0) {\n        const oReq = new XMLHttpRequest()\n        oReq.addEventListener('load', () => {\n            const headers = (oReq.getAllResponseHeaders()).split('\\r\\n')\n            const elapsedTime = Number(new Date()) - Number((oReq.responseURL.split('='))[1])\n            this.set('ping', {\n                success: !!((oReq.status === 201) || (oReq.status === 204)), // true if one of the listed codes else false\n                status: oReq.status,\n                headers: headers,\n                url: oReq.responseURL,\n                elapsedTime: elapsedTime,\n            })\n        })\n\n        if (this.#pingInterval) {\n            clearInterval(this.#pingInterval)\n            this.#pingInterval = undefined\n        }\n\n        oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n        oReq.send()\n\n        if (ms > 0) {\n            this.#pingInterval = setInterval(() => {\n                oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n                oReq.send()\n            }, ms)\n        }\n    } // ---- End of ping ---- //\n\n    log() {\n        log(...arguments)()\n    }\n\n    /** Convert JSON to Syntax Highlighted HTML\n     * @param {object} json A JSON/JavaScript Object\n     * @returns {html} Object reformatted as highlighted HTML\n     */\n    syntaxHighlight(json) {\n        return syntaxHighlight(json)\n    } // --- End of syntaxHighlight --- //\n\n    /** Copies a uibuilder variable to the browser clipboard\n     * @param {string} varToCopy The name of the uibuilder variable to copy to the clipboard\n     */\n    copyToClipboard(varToCopy) {\n        let data = ''\n        try {\n            console.log(this.get(varToCopy), JSON.stringify(this.get(varToCopy)))\n            data = JSON.stringify(this.get(varToCopy))\n        } catch (e) {\n            log('error', 'copyToClipboard', `Could not copy \"${varToCopy}\" to clipboard.`, e.message)()\n        }\n        navigator.clipboard.writeText(data)\n    } // --- End of copyToClipboard --- //\n\n    /** DEPRECATED FOR NOW - wasn't working properly.\n     * Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.\n     * Requires IntersectionObserver (available to all mainstream browsers from early 2019)\n     * Automatically sends a msg back to Node-RED.\n     * Requires the element to already exist.\n     */\n    elementIsVisible() {\n        const info = 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'\n        log('error', 'uib:elementIsVisible', info)()\n        this.send({payload: 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'})\n        return false\n    } // --- End of elementIsVisible --- //\n\n    /** Does the chosen CSS Selector currently exist?\n     * Automatically sends a msg back to Node-RED unless turned off.\n     * @param {string} cssSelector Required. CSS Selector to examine for visibility\n     * @param {boolean} [msg] Optional, default=true. If true also sends a message back to Node-RED\n     * @returns {boolean} True if the element exists\n     */\n    elementExists(cssSelector, msg = true) {\n        const el = document.querySelector(cssSelector)\n\n        let exists = false\n        if (el !== null) exists = true\n\n        if (msg === true) {\n            this.send({\n                payload: exists,\n                info: `Element \"${cssSelector}\" ${exists ? 'exists' : 'does not exist'}`\n            })\n        }\n\n        return exists\n    } // --- End of elementExists --- //\n\n    /** Only keep the URL Hash & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return '#' + url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Set up an event listener to watch for hash changes\n     * and set the watchable urlHash variable\n     */\n    _watchHashChanges() {\n        this.set('urlHash', location.hash)\n        window.addEventListener('hashchange', (event) => {\n            this.set('urlHash', location.hash)\n            if (this.#sendUrlHash === true) {\n                this.send({ topic: 'hashChange', payload: location.hash, newHash: this.keepHashFromUrl(event.newURL), oldHash: this.keepHashFromUrl(event.oldURL) })\n            }\n        })\n    }\n\n    /** Returns true/false or a default value for truthy/falsy and other values\n     * @param {string|number|boolean|*} val The value to test\n     * @param {any} deflt Default value to use if the value is not truthy/falsy\n     * @returns {boolean|any} The truth! Or the default\n     */\n    truthy(val, deflt) {\n        let ret\n        if (['on', 'On', 'ON', 'true', 'True', 'TRUE', '1', true, 1].includes(val)) ret = true\n        else if (['off', 'Off', 'OFF', 'false', 'False', 'FALSE', '0', false, 0].includes(val)) ret = false\n        else ret = deflt\n        return ret\n    }\n\n    /** Turn on/off/toggle sending URL hash changes back to Node-RED\n     * @param {string|number|boolean|undefined} [toggle] Optional on/off/etc\n     * @returns {boolean} True if we will send a msg to Node-RED on a hash change\n     */\n    watchUrlHash(toggle) {\n        this.#sendUrlHash = this.truthy(toggle, this.#sendUrlHash !== true)\n        return this.#sendUrlHash\n    }\n\n    /** Navigate to a new page or a new route (hash)\n     * @param {string} url URL to navigate to. Can be absolute or relative (to current page) or just a hash for a route change\n     * @returns {Location} The new window.location string\n     */\n    navigate(url) {\n        if (url) window.location.href = url\n        return window.location\n    }\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- UI handlers --------- //\n\n    //#region -- Direct to _ui --\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        _ui.ui(json)\n    }\n\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        _ui.replaceSlot(el, component)\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        _ui.replaceSlotMarkdown(el, component)\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        return _ui.convertMarkdown(mdText)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        return _ui.sanitiseHTML(html)\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        _ui.loadScriptSrc(url)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        _ui.loadStyleSrc(url)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        _ui.loadScriptTxt(textFn)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        _ui.loadStyleTxt(textFn)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) {\n        _ui.showDialog(type, ui, msg)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        _ui.loadui(url)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        return _ui.uiGet(cssSelector, propName)\n    }\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     */\n    async include(url, uiOptions) {\n        _ui.include(url, uiOptions)\n    }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} component Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, component) {\n        _ui.uiEnhanceElement(el, component)\n    }\n\n    //#endregion -- direct to _ui --\n\n    /** * Show/hide a display card on the end of the visible HTML that will dynamically display the last incoming msg from Node-RED\n     * The card has the id `uib_last_msg`. Updates are done from a listener set up in the start function.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showMsg(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowMsg\n        this.#isShowMsg = showHide\n        let slot = 'Waiting for a message from Node-RED'\n\n        if (this.msg && Object.keys(this.msg).length > 0) {\n            slot = this.syntaxHighlight(this.msg)\n        }\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_last_msg_wrap',\n                ],\n            })\n        } else {\n            _ui._uiReplace({\n                components: [\n                    {\n                        type: 'div',\n                        id: 'uib_last_msg_wrap',\n                        parent: parent,\n                        attributes: {\n                            title: 'Last message from Node-RED',\n                        },\n                        components: [\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.copyToClipboard(\"msg\")',\n                                    class: 'compact',\n                                    style: 'right:3em;',\n                                },\n                                slot: '\uD83D\uDCCB',\n                            },\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.showMsg()',\n                                    class: 'compact',\n                                    style: 'right:.5em;',\n                                },\n                                slot: '\u26D4',\n                            },\n                            {\n                                type: 'pre',\n                                id: 'uib_last_msg',\n                                // parent: 'uib_last_msg_wrap',\n                                attributes: {\n                                    class: 'syntax-highlight',\n                                },\n                                slot: slot,\n                            },\n                        ],\n                    },\n                ],\n            })\n        }\n\n        return showHide\n    }\n\n    /** Show a browser notification if possible.\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * @example uibuilder.notify( 'My simple message to the user' )\n     * @example uibuilder.notify( {topic: 'My Title', payload: 'My simple message to the user'} )\n     * @example uibuilder.notify( {title: 'My Title', body: 'My simple message to the user'} )\n     * @example // If config.return = true, a promise is returned.\n     * // The resolved promise is only returned if the notification is clicked by the user.\n     * // Can be used to send the response back to Node-RED\n     * uibuilder.notify(notifyConfig).then( res => uibuilder.eventSend(res) )\n     * @ref https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config data or simple message string\n     * @returns {Promise<Event>|null} A promise that resolves to the click event or null\n     */\n    notify(config) {\n        if (config.return) return _ui.notification(config)\n\n        _ui.notification(config)\n            .then( res => { // eslint-disable-line promise/always-return\n                log('info', 'Uib:notification', 'Notification completed event', res)()\n                // if (config.return) return res\n            })\n            .catch( err => {\n                log('error', 'Uib:notification', 'Notification error event', err)()\n            })\n        return null\n    }\n\n    /** Scroll the page\n     * https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollIntoView\n     * @param {string} [cssSelector] Optional. If not set, scrolls to top of page.\n     * @param {{block:(string|undefined),inline:(string|undefined),behavior:(string|undefined)}} [opts] Optional. DOM scrollIntoView options\n     * @returns {boolean} True if element was found, false otherwise\n     */\n    scrollTo(cssSelector, opts) {\n        // @ts-ignore\n        if (!opts) opts = {}\n        if (!cssSelector || cssSelector === 'top'  || cssSelector === 'start') cssSelector = 'body'\n        else if (cssSelector === 'bottom' || cssSelector === 'end') {\n            cssSelector = 'body'\n            opts.block = 'end'\n        }\n        const el = this.$(cssSelector)\n        if (el) {\n            el.scrollIntoView(opts)\n            return true\n        }\n        return false\n    }\n\n    /** Show/hide a display card on the end of the visible HTML that will dynamically display the current status of the uibuilder client\n     * The card has the id `uib_status`.\n     * The display is updated by an event listener created in the class constructor.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showStatus(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowStatus\n        this.#isShowStatus = showHide\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_status',\n                ],\n            })\n            return showHide\n        }\n\n        const root = {\n            components: [\n                {\n                    type: 'div',\n                    id: 'uib_status',\n                    parent: parent,\n                    attributes: {\n                        title: 'Current status of the uibuilder client',\n                        class: 'text-smaller',\n                    },\n                    components: [\n                        {\n                            'type': 'table',\n                            'components': [\n                                {\n                                    'type': 'tbody',\n                                    'components': []\n                                }\n                            ]\n                        }\n                    ]\n                }\n            ]\n        }\n        const details = root.components[0].components[0].components[0].components\n\n        Object.values(this.#showStatus).forEach( entry => {\n            details.push({\n                'type': 'tr',\n                'attributes': {\n                    title: entry.description,\n                },\n                'components': [\n                    {\n                        'type': 'th',\n                        'slot': entry.label,\n                    },\n                    {\n                        'type': 'td',\n                        'attributes': {\n                            'data-varType': entry.var,\n                        },\n                        'slot': entry.var === 'version' ? Uib._meta.version : JSON.stringify(this[entry.var]),\n                    }\n                ],\n            })\n        })\n\n        _ui._uiReplace(root)\n\n        return showHide\n    }\n\n    /** Use the Mutation Observer browser API to watch for changes to a single element on the page.\n     * OMG! It is sooo hard to turn the data into something that successfully serialises so it can be sent back to Node-RED!\n     * NB: Each cssSelector creates a unique watcher. Sending the same selector overwrites the previous one.\n     * @param {string} cssSelector A CSS Selector that selects the element to watch for changes\n     * @param {boolean|\"toggle\"} [startStop] true=start watching the DOM, false=stop. Default='toggle'\n     * @param {boolean} [send] true=Send changes to Node-RED, false=Don't send. Default=true\n     * @param {boolean} [showLog] true=Output changes to log, false=stop. Default=true. Log level is 2 (Info)\n     * @returns {boolean} True if the watch is on, false otherwise\n     */\n    uiWatch(cssSelector, startStop = 'toggle', send = true, showLog = true) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.querySelector(cssSelector)\n        if (!targetNode) {\n            log('warn', 'uibuilder.module.js:uiWatch', `CSS Selector '${cssSelector}' not found.`)()\n            return false\n        }\n\n        if (startStop === 'toggle' || startStop === undefined || startStop === null) {\n            if (this.#uiObservers[cssSelector]) startStop = false\n            else startStop = true\n        }\n\n        // Need a ref to the Uib this\n        const that = this\n\n        if (startStop === true) {\n            // Create an observer instance\n            this.#uiObservers[cssSelector] = new MutationObserver( function( mutationList /* , observer */ ) {\n                const out = []\n\n                mutationList.forEach( mu => {\n                    // console.log({ mu })\n                    const oMu = {\n                        type: mu.type,\n                        oldValue: mu.oldValue !== null ? mu.oldValue : undefined,\n                    }\n\n                    if (mu.addedNodes.length > 0) {\n                        oMu.addedNodes = []\n                        mu.addedNodes.forEach( (an, i) => {\n                            oMu.addedNodes.push(_ui.nodeGet(mu.addedNodes[i]))\n                        })\n                    }\n\n                    if (mu.removedNodes.length > 0) {\n                        oMu.removedNodes = []\n                        mu.removedNodes.forEach( (an, i) => {\n                            oMu.removedNodes.push(_ui.nodeGet(mu.removedNodes[i]))\n                        })\n                    }\n\n                    if ( mu.type === 'attributes' ) {\n                        oMu.attributeName = mu.attributeName\n                        // @ts-ignore\n                        oMu.newValue = mu.target.attributes[mu.attributeName].value\n                    }\n\n                    out.push(oMu)\n                })\n\n                // Custom event\n                that._dispatchCustomEvent('uibuilder:domChange', out)\n                // Send a msg back to node-red\n                if (send === true) {\n                    that.send({\n                        _ui: {\n                            cssSelector: cssSelector,\n                            uiChanges: out\n                        },\n                        topic: that.topic || `DOM Changes for '${cssSelector}'`,\n                    })\n                }\n                // Log to info\n                if (showLog === true) {\n                    log('info', 'uibuilder.module.js:uiWatch', `DOM Changes for '${cssSelector}'`, { uiChanges: out }, { mutationList })()\n                }\n            } )\n\n            // Start observing the target node for configured mutations\n            this.#uiObservers[cssSelector].observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:uiWatch', `Started Watching DOM changes for '${cssSelector}'`)()\n        } else {\n            this.#uiObservers[cssSelector].disconnect()\n            delete this.#uiObservers[cssSelector]\n            log('trace', 'uibuilder.module.js:uiWatch', `Stopped Watching DOM changes for '${cssSelector}'`)()\n        }\n\n        return startStop\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- HTML cache and DOM watch --------- //\n\n    /** Clear the saved DOM from localStorage */\n    clearHtmlCache() {\n        this.removeStore('htmlCache')\n        log('trace', 'uibuilder.module.js:clearHtmlCache', 'HTML cache cleared')()\n    }\n\n    /** Restore the complete DOM (the whole web page) from browser localStorage if available */\n    restoreHtmlFromCache() {\n        // Is the html cached? If so, restore it\n        const htmlCache = this.getStore('htmlCache')\n        if (htmlCache) {\n            const targetNode = document.getElementsByTagName('html')[0]\n            // Restore the entire HTML\n            targetNode.innerHTML = htmlCache\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'Restored HTML from cache')()\n        } else {\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'No cache to restore')()\n        }\n    }\n\n    /** Save the current DOM state to browser localStorage.\n     * localStorage is persistent and so can be recovered even after a browser restart.\n     */\n    saveHtmlCache() {\n        // Save the updated entire HTML in localStorage\n        this.setStore('htmlCache', document.documentElement.innerHTML)\n    }\n\n    /** Use the Mutation Observer browser API to watch for and save changes to the HTML\n     * Once the observer is created, it will be reused.\n     * Sending true or undefined will turn on the observer, false turns it off.\n     * saveHtmlCache is called whenever anything changes in the dom. This allows\n     * users to call restoreHtmlFromCache() on page load if desired to completely reload\n     * to the last saved state.\n     * @param {boolean} startStop true=start watching the DOM, false=stop\n     */\n    watchDom(startStop) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.documentElement\n\n        // Need a ref to the Uib this\n        const that = this\n\n        // Create an observer instance\n        if (!this._htmlObserver) {\n            this._htmlObserver = new MutationObserver( function(/* mutationList, observer */) {\n                // We don't need to know the details - so kill off any outstanding mutation records\n                this.takeRecords()\n                // Save the updated entire HTML in localStorage\n                that.saveHtmlCache()\n            } )\n        }\n\n        if (startStop === true || startStop === undefined) {\n            // Start observing the target node for configured mutations\n            this._htmlObserver.observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:watchDom', 'Started Watching and saving DOM changes')()\n        } else {\n            this._htmlObserver.disconnect()\n            log('trace', 'uibuilder.module.js:watchDom', 'Stopped Watching and saving DOM changes')()\n        }\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- Message Handling (To/From Node-RED) -------- //\n\n    /** Internal send fn. Send a standard or control msg back to Node-RED via Socket.IO\n     * NR will generally expect the msg to contain a payload topic\n     * @param {object} msgToSend The msg object to send.\n     * @param {string} [channel=uiBuilderClient] The Socket.IO channel to use, must be in self.ioChannels or it will be ignored\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    _send(msgToSend, channel, originator = '') {\n        if (channel === null || channel === undefined) channel = this._ioChannels.client\n\n        // Make sure msgToSend is an object\n        if (channel === this._ioChannels.client) {\n            msgToSend = makeMeAnObject(msgToSend, 'payload')\n        } else if (channel === this._ioChannels.control) {\n            msgToSend = makeMeAnObject(msgToSend, 'uibuilderCtrl')\n            if (!Object.prototype.hasOwnProperty.call(msgToSend, 'uibuilderCtrl')) {\n                msgToSend.uibuilderCtrl = 'manual send'\n            }\n            // help remember where this came from as ctrl msgs can come from server or client\n            msgToSend.from = 'client'\n        }\n\n        /** since 2020-01-02 Added _socketId which should be the same as the _socketId on the server */\n        msgToSend._socketId = this._socket.id\n\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n\n        // Add the originator metadata if required\n        if (originator === '' && this.originator !== '') originator = this.originator\n        if (originator !== '') Object.assign(msgToSend, { '_uib': { 'originator': originator } })\n\n        // If the msg does not have a topic - see if we want to add one\n        if ( !Object.prototype.hasOwnProperty.call(msgToSend, 'topic') ) {\n            // From the default (`uibuilder.set('topic', 'some topic')`)\n            if (this.topic !== undefined && this.topic !== '') msgToSend.topic = this.topic\n            else {\n                // Did the last inbound msg have a topic?\n                if ( Object.prototype.hasOwnProperty.call(this, 'msg') && Object.prototype.hasOwnProperty.call(this.msg, 'topic') ) {\n                    msgToSend.topic = this.msg.topic\n                }\n            }\n        }\n\n        // If a standard send & _ui property exists, make sure to add _ui.from = 'client'\n        if (msgToSend._ui) msgToSend._ui.from = 'client'\n\n        // Track how many messages have been sent & last msg sent\n        let numMsgs\n        if (channel === this._ioChannels.client) {\n            this.set('sentMsg', msgToSend)\n            numMsgs = this.set('msgsSent', ++this.msgsSent)\n        } else if (channel === this._ioChannels.control) {\n            this.set('sentCtrlMsg', msgToSend)\n            numMsgs = this.set('msgsSentCtrl', ++this.msgsSentCtrl)\n        }\n        log('trace', 'Uib:_send', ` Channel '${channel}'. Sending msg #${numMsgs}`, msgToSend)()\n\n        this._socket.emit(channel, msgToSend)\n    } // --- End of Send Msg Fn --- //\n\n    /** Send a standard message to NR\n     * @example uibuilder.send({payload:'Hello'})\n     * @param {object} msg Message to send\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    send(msg, originator = '') {\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Send a control msg to NR\n     * @param {object} msg Message to send\n     */\n    sendCtrl(msg) {\n        this._send(msg, this._ioChannels.control)\n    }\n\n    /** Easily send a msg back to Node-RED on a DOM event\n     * @example In plain HTML/JavaScript\n     *    `<button id=\"button1\" name=\"button 1\" data-fred=\"jim\"></button>`\n     *    $('#button1').onclick = (evt) => {\n     *      uibuilder.eventSend(evt)\n     *    }\n     * @example\n     * In VueJS: `<b-button id=\"myButton1\" @click=\"doEvent\" data-something=\"hello\"></b-button>`\n     * In VueJS methods: `doEvent: uibuilder.eventSend,`\n     *\n     * All `data-` attributes will be passed back to Node-RED,\n     *    use them instead of arguments in the click function.\n     *    All target._ui custom properties are also passed back to Node-RED.\n     *\n     * @param {MouseEvent|any} domevent DOM Event object\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    eventSend(domevent, originator = '') { // eslint-disable-line sonarjs/cognitive-complexity\n        // @ts-ignore Handle case where vue messes up `this`\n        if ( this.$attrs ) {\n            log('error', 'Uib:eventSend', '`this` has been usurped by VueJS. Make sure that you wrap the call in a function: `doEvent: function (event) { uibuilder.eventSend(event) },`' )()\n            return\n        }\n        if (!domevent && !event) {\n            log('warn', 'Uib:eventSend', 'Neither the domevent nor the hidden event properties are set. You probably called this function directly rather than applying to an on click event.' )()\n            return\n        }\n        // Handle no argument, e.g. <button onClick=\"uibuilder.eventSend()\"> - event is a hidden variable when fn used in addEventListener\n        if (!domevent || !domevent.constructor) domevent = event\n\n        // The argument must be a DOM event\n        if ((!domevent.constructor.name.endsWith('Event')) || (!domevent.currentTarget)) {\n            log('warn', 'Uib:eventSend', `ARGUMENT NOT A DOM EVENT - use data attributes not function arguments to pass data. Arg Type: ${domevent.constructor.name}`, domevent)()\n            return\n        }\n\n        // Prevent default event action\n        domevent.preventDefault()\n\n        // The target element\n        const target = domevent.currentTarget\n\n        // Get target properties - only shows custom props not element default ones\n        const props = {}\n        Object.keys(target).forEach( key => {\n            if (key.startsWith('_')) return // Exclude private\n            props[key] = target[key]\n        })\n\n        // Attempt to get target attributs - can fail for certain target types\n        const ignoreAttribs = ['class', 'id', 'name']\n        let attribs\n        try {\n            attribs = Object.assign({},\n                ...Array.from(target.attributes,\n                    ( { name, value } ) => {\n                        if ( !ignoreAttribs.includes(name) ) {\n                            return ({ [name]: value })\n                        }\n                        return undefined\n                    }\n                )\n            )\n        } catch (e) {}\n\n        // If target embedded in a form, include the form data\n        let form\n        const frmVals = []\n        if ( target.form ) {\n            form = {}\n            form.valid = target.form.checkValidity()\n            Object.values(target.form).forEach( (frmEl, i) => {\n                const id = frmEl.id !== '' ? frmEl.id : (frmEl.name !== '' ? frmEl.name : `${i}-${frmEl.type}`)\n\n                // We must have both an element id (we may have forced one above) AND\n                // the element type MUST be not undefined - to allow for the extra properties added by frameworks such as Svelte\n                if (id !== '' && frmEl.type) {\n                    // Stupid HTML doesn't use value attrib for checkboxes. So override if value is set to default\n                    if ('checked' in frmEl && frmEl.value === 'on') frmEl.value = frmEl.checked.toString()\n\n                    frmVals.push( { key: id, val: frmEl.value } ) // simplified for addition to msg.payload\n\n                    form[id] = {\n                        'id': frmEl.id,\n                        'name': frmEl.name,\n                        'value': frmEl.value,\n                        'valid': frmEl.checkValidity(),\n                        'type': frmEl.type,\n                    }\n\n                    if (form[id].valid === false) {\n                        const v = frmEl.validity\n                        form[id].validity = {\n                            badInput: v.badInput === true ? v.badInput : undefined,\n                            customError: v.customError === true ? v.customError : undefined,\n                            patternMismatch: v.patternMismatch === true ? v.patternMismatch : undefined,\n                            rangeOverflow: v.rangeOverflow === true ? v.rangeOverflow : undefined,\n                            rangeUnderflow: v.rangeUnderflow === true ? v.rangeUnderflow : undefined,\n                            stepMismatch: v.stepMismatch === true ? v.stepMismatch : undefined,\n                            tooLong: v.tooLong === true ? v.tooLong : undefined,\n                            tooShort: v.tooShort === true ? v.tooShort : undefined,\n                            typeMismatch: v.typeMismatch === true ? v.typeMismatch : undefined,\n                            valueMissing: v.valueMissing === true ? v.valueMissing : undefined,\n                        }\n                    }\n\n                    if (frmEl.dataset) form[id].data = frmEl.dataset\n                }\n            })\n        }\n\n        // Check for CSS Classes\n        let classes\n        try {\n            classes = Array.from(target.classList)\n        } catch (e) {}\n\n        // Each `data-xxxx` attribute is added as a property\n        let payload = { ...target.dataset }\n\n        // Handle Notification events\n        let nprops\n        if ( Object.prototype.toString.call(target) === '[object Notification]') {\n            // Fixed payload for convenience\n            payload = `notification-${target.userAction}`\n            // Capture the notification properties\n            nprops = {\n                // userAction: target.userAction, // uib custom prop: click, close or error\n                actions: target.actions,\n                badge: target.badge,\n                body: target.body,\n                data: target.data,\n                dir: target.dir,\n                icon: target.icon,\n                image: target.image,\n                lang: target.lang,\n                renotify: target.renotify,\n                requireInteraction: target.requireInteraction,\n                silent: target.silent,\n                tag: target.tag,\n                timestamp: target.timestamp,\n                title: target.title,\n                vibrate: target.vibrate,\n            }\n        }\n        // console.log(Object.prototype.toString.call(target))\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            // - this may be an empty Object if no data attributes defined\n            payload: payload,\n\n            _ui: {\n                type: 'eventSend',\n                id: target.id !== '' ? target.id : undefined,\n                name: target.name !== '' ? target.name : undefined,\n                slotText: target.textContent ? target.textContent.substring(0, 255) : undefined,\n\n                form: form,\n                props: props,\n                attribs: attribs,\n                classes: classes,\n\n                notification: nprops,\n\n                event: domevent.type,\n                altKey: domevent.altKey,\n                ctrlKey: domevent.ctrlKey,\n                shiftKey: domevent.shiftKey,\n                metaKey: domevent.metaKey,\n\n                pointerType: domevent.pointerType,\n                nodeName: target.nodeName,\n\n                clientId: this.clientId,\n                pageName: this.pageName,\n                tabId: this.tabId,\n            }\n        }\n\n        if (frmVals.length > 0) {\n            frmVals.forEach( entry => {\n                msg.payload[entry.key] = entry.val\n            })\n        }\n\n        if (domevent.type === 'change') {\n            // Checkboxes don't have a value!!\n            msg._ui.newValue = msg.payload.value = 'checked' in target ? target.checked : domevent.target.value\n        }\n\n        log('trace', 'Uib:eventSend', 'Sending msg to Node-RED', msg)()\n        if (target.dataset && target.dataset.length === 0) log('warn', 'Uib:eventSend', 'No payload in msg. data-* attributes should be used.')()\n\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Easily send the entire DOM/HTML msg back to Node-RED\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     * @param {boolean} [send] If true (default) directly send response to Node-RED. Is false when calling from Node-RED as a command.\n     * @returns {string} The HTML as a string\n     */\n    htmlSend(originator = '', send = true) {\n        const out = `<!doctype html>\\n${document.documentElement.outerHTML}`\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            payload: out,\n            length: out.length,\n            topic: this.topic,\n        }\n\n        log('trace', 'Uib:htmlSend', 'Sending full HTML to Node-RED', msg)()\n\n        if (send === true) this._send(msg, this._ioChannels.client, originator)\n        return out\n    }\n\n    /** Process msg._uib.command - Remember to update #extCommands with new allowed commands\n     * @param {object} msg Msg from Node-RED containing a msg._uib object\n     */\n    _uibCommand(msg) {\n        if (!msg._uib || !msg._uib.command) {\n            log('error', 'uibuilder:_uibCommand', 'Invalid command message received', { msg })()\n            msg.payload = msg.error = 'Invalid command message received'\n            this.send(msg)\n            return\n        }\n        const cmd = msg._uib.command\n        // Disallowed command request outputs error and ignores the msg (NB: Case must match)\n        if (!this.#extCommands.includes(cmd.trim())) {\n            log('error', 'Uib:_uibCommand', `Command '${cmd} is not allowed to be called externally`)()\n            return\n        }\n        const prop = msg._uib.prop\n        const value = msg._uib.value\n        const quiet = msg._uib.quiet ?? false\n        let response, info\n\n        // Don't forget to update `#extCommands`, `docs/client-docs/control-from-node-red.md` & `functions.md`\n        switch (cmd) {\n            case 'elementIsVisible': {\n                response = this.elementIsVisible(prop)\n                // info = `Element \"${prop}\" ${response ? 'is visible' : 'is not visible'}`\n                break\n            }\n\n            case 'elementExists': {\n                response = this.elementExists(prop, false)\n                info = `Element \"${prop}\" ${response ? 'exists' : 'does not exist'}`\n                break\n            }\n\n            case 'get': {\n                response = this.get(prop)\n                break\n            }\n\n            case 'getManagedVarList': {\n                if (prop === 'full') response = this.getManagedVarList()\n                else response = Object.values(this.getManagedVarList())\n                break\n            }\n\n            case 'getWatchedVars': {\n                if (prop === 'full') response = this.getWatchedVars()\n                else response = Object.values(this.getWatchedVars())\n                break\n            }\n\n            case 'htmlSend': {\n                response = this.htmlSend('', false)\n                break\n            }\n\n            case 'include': {\n                // include is async\n                response = _ui.include(prop, value)\n                break\n            }\n\n            case 'navigate': {\n                let newUrl\n                if (prop) newUrl = prop\n                else if (value) newUrl = value\n                response = this.navigate(newUrl)\n                break\n            }\n\n            case 'scrollTo': {\n                response = this.scrollTo(prop, value)\n                break\n            }\n\n            case 'set': {\n                let store = false\n                let autoload = false\n                if (msg._uib.options && msg._uib.options.store) {\n                    if (msg._uib.options.store === true) store = true\n                    if (msg._uib.options.autoload === true) autoload = true\n                }\n                response = this.set(prop, value, store, autoload)\n                break\n            }\n\n            case 'showMsg': {\n                response = this.showMsg(value, prop)\n                break\n            }\n\n            case 'showStatus': {\n                response = this.showStatus(value, prop)\n                break\n            }\n\n            case 'uiGet': {\n                response = _ui.uiGet(prop, value)\n                break\n            }\n\n            case 'uiWatch': {\n                response = this.uiWatch(prop)\n                break\n            }\n\n            case 'watchUrlHash': {\n                response = this.watchUrlHash(prop)\n                break\n            }\n\n            default: {\n                log('warning', 'Uib:_uibCommand', `Command '${cmd}' not yet implemented`)()\n                break\n            }\n        }\n\n        if (quiet !== true) {\n            if (response === undefined) {\n                response = `'${prop}' is undefined`\n            }\n            if (Object(response).constructor === Promise) {\n                // response = `'${cmd} ${prop}' submitted. Cmd is async, no response available`\n                response\n                    .then( (/** @type {any} */ data) => {\n                        msg.payload = msg._uib.response = data\n                        msg.info = msg._uib.info = info\n                        if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                        this.send(msg)\n                        return true\n                    })\n                    .catch( err => {\n                        log(0, 'Uib:_uibCommand', 'Error: ', err)()\n                    })\n            } else {\n                msg.payload = msg._uib.response = response\n                msg.info = msg._uib.info = info\n                if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                this.send(msg)\n            }\n        }\n    } // --- end of _uibCommand ---\n\n    /** Do we want to process something? Check pageName, clientId, tabId. Defaults to yes.\n     * @param {*} obj Either a msg._ui or msg._uib object to check\n     * @returns {boolean} True if we should process the inbound _ui/_uib msg, false if not.\n     */\n    _forThis(obj) {\n        let r = true\n\n        // Is this msg for this pageName?\n        if (obj.pageName && obj.pageName !== this.pageName) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this page')()\n            r = false\n        }\n\n        // Is this msg for this clientId?\n        if (obj.clientId && obj.clientId !== this.clientId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this clientId')()\n            r = false\n        }\n\n        // Is this msg for this tabId?\n        if (obj.tabId && obj.tabId !== this.tabId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this tabId')()\n            r = false\n        }\n\n        return r\n    }\n\n    // Handle received messages - Process some msgs internally, emit specific events on document that make it easy for coders to use\n    _msgRcvdEvents(msg) {\n        // Message received\n        this._dispatchCustomEvent('uibuilder:stdMsgReceived', msg)\n\n        // Topic\n        if ( msg.topic ) this._dispatchCustomEvent(`uibuilder:msg:topic:${msg.topic}`, msg)\n\n        // Handle msg._uib special requests\n        if (msg._uib) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._uib)) return\n\n            /** Process a client reload request from Node-RED - as the page is reloaded, everything else is ignored\n             * Note that msg._ui.reload is also actioned via the _ui processing below */\n            if (msg._uib.reload === true) {\n                log('trace', 'Uib:_msgRcvdEvents:_uib:reload', 'reloading')()\n                location.reload()\n                return\n            }\n\n            // Process msg._uib.command messages - allows Node-RED to run uibuilder FE functions\n            if (msg._uib.command) {\n                this._uibCommand(msg)\n                return\n            }\n\n            // Better to request via msg._ui - these are for backwards compatibility\n            if ( msg._uib.componentRef === 'globalNotification' ) {\n                _ui.showDialog('notify', msg._uib.options, msg)\n            }\n            if ( msg._uib.componentRef === 'globalAlert' ) {\n                _ui.showDialog('alert', msg._uib.options, msg)\n            }\n        }\n\n        // Handle msg._ui requests\n        if ( msg._ui ) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._ui)) return\n\n            log('trace', 'Uib:_msgRcvdEvents:_ui', 'Calling _uiManager')()\n            this._dispatchCustomEvent('uibuilder:msg:_ui', msg)\n            _ui._uiManager(msg)\n        }\n    } // --- end of _msgRcvdEvents ---\n\n    /** Callback handler for messages from Node-RED\n     * NOTE: `this` is the class here rather the `socket` as would be normal since we bind the correct `this` in the call.\n     *       Use this._socket if needing reference to the socket.\n     * @callback ioSetupFromServer Called from ioSetup/this._socket.on(this.#ioChannels.server, this.stdMsgFromServer.bind(this))\n     * @param {object} receivedMsg The msg object from Node-RED\n     * @this Uib\n     */\n    _stdMsgFromServer(receivedMsg) {\n\n        // Make sure that msg is an object & not null\n        receivedMsg = makeMeAnObject(receivedMsg, 'payload')\n\n        // Don't process if the inbound msg is not for us\n        if (receivedMsg._uib && !this._forThis(receivedMsg._uib)) return\n        if (receivedMsg._ui && !this._forThis(receivedMsg._ui)) return\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedMsg)\n\n        // Track how many messages have been received\n        this.set('msgsReceived', ++this.msgsReceived)\n\n        // Emit specific document events on msg receipt that make it easy for coders to use\n        this._msgRcvdEvents(receivedMsg)\n\n        if ( !('_ui' in receivedMsg && !('payload' in receivedMsg)) ) {\n            // Save the msg for further processing\n            this.set('msg', receivedMsg)\n        }\n\n        log('info', 'Uib:ioSetup:stdMsgFromServer', `Channel '${this._ioChannels.server}'. Received msg #${this.msgsReceived}.`, receivedMsg)()\n\n        // ! NOTE: Don't try to handle specialist messages here. See _msgRcvdEvents.\n\n    } // -- End of websocket receive DATA msg from Node-RED -- //\n\n    /** Handles original control msgs (not to be confused with \"new\" msg._uib controls)\n     * @param {*} receivedCtrlMsg The msg received on the socket.io control channel\n     */\n    _ctrlMsgFromServer(receivedCtrlMsg) {\n\n        // Make sure that msg is an object & not null\n        if (receivedCtrlMsg === null) {\n            receivedCtrlMsg = {}\n        } else if (typeof receivedCtrlMsg !== 'object') {\n            const msg = {}\n            msg['uibuilderCtrl:' + this._ioChannels.control] = receivedCtrlMsg\n            receivedCtrlMsg = msg\n        }\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedCtrlMsg)\n\n        this.set('ctrlMsg', receivedCtrlMsg)\n        this.set('msgsCtrlReceived', ++this.msgsCtrlReceived)\n\n        log('trace', 'Uib:ioSetup:_ctrlMsgFromServer', `Channel '${this._ioChannels.control}'. Received control msg #${this.msgsCtrlReceived}`, receivedCtrlMsg)()\n\n        /** Process control msg types */\n        switch (receivedCtrlMsg.uibuilderCtrl) {\n            // Node-RED is shutting down\n            case 'shutdown': {\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, '\u274C Received \"shutdown\" from server')()\n                this.set('serverShutdown', undefined)\n                break\n            }\n\n            /** We are connected to the server - 1st msg from server */\n            case 'client connect': {\n                log('trace', `Uib:ioSetup:${this._ioChannels.control}`, 'Received \"client connect\" from server')()\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, `\u2705 Server connected. Version: ${receivedCtrlMsg.version}\\nServer time: ${receivedCtrlMsg.serverTimestamp}, Sever time offset: ${this.serverTimeOffset} hours`)()\n\n                if ( !Uib._meta.version.startsWith(receivedCtrlMsg.version.split('-')[0]) ) {\n                    log('warn', `Uib:ioSetup:${this._ioChannels.control}`, `Server version (${receivedCtrlMsg.version}) not the same as the client version (${Uib._meta.version})`)()\n                }\n\n                if (this.autoSendReady === true) { // eslint-disable-line no-lonely-if\n                    log('trace', `Uib:ioSetup:${this._ioChannels.control}/client connect`, 'Auto-sending ready-for-content/replay msg to server')\n                    // @since 0.4.8c Add cacheControl property for use with node-red-contrib-infocache\n                    // @since 6.1.0 Don't bother, we use the \"client connect\" msg\n                    // this._send({\n                    //     'uibuilderCtrl': 'ready for content',\n                    //     'cacheControl': 'REPLAY',\n                    // }, this._ioChannels.control)\n                }\n\n                break\n            }\n\n            default: {\n                log('trace', `uibuilderfe:ioSetup:${this._ioChannels.control}`, `Received ${receivedCtrlMsg.uibuilderCtrl} from server`)\n                // Anything else to do for other control msgs?\n            }\n\n        } // ---- End of process control msg types ---- //\n\n    } // -- End of websocket receive CONTROL msg from Node-RED -- //\n\n    /** Send log text to uibuilder's beacon endpoint (works even if socket.io not connected)\n     * @param {string} txtToSend Text string to send\n     * @param {string|undefined} logLevel Log level to use. If not supplied, will default to debug\n     */\n    beaconLog(txtToSend, logLevel) {\n        if (!logLevel) logLevel = 'debug'\n        navigator.sendBeacon('./_clientLog', `${logLevel}::${txtToSend}`)\n    }\n\n    /** Send log info back to Node-RED over uibuilder's websocket control output (Port #2)\n     * @param {...*} arguments All arguments passed to the function are added to the msg.payload\n     */\n    logToServer() {\n        this.sendCtrl({\n            uibuilderCtrl: 'client log message',\n            payload: arguments,\n            // \"version\":\"6.1.0-iife.min\",\n            _socketId: this._socket.id,\n            // \"ip\":\"::1\",\n            clientId: this.clientId,\n            tabId: this.tabId,\n            // \"url\":\"esp-test\",\n            pageName: this.pageName,\n            connections: this.connectedNum,\n            lastNavType: this.lastNavType,\n        })\n    }\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Socket.IO -------- //\n\n    /** Return the Socket.IO namespace\n     * The cookie method is the most reliable but this falls back to trying to work it\n     * out from the URL if cookies not available. That won't work if page is in a sub-folder.\n     * since 2017-10-21 Improve method to cope with more complex paths - thanks to Steve Rickus @shrickus\n     * since 2017-11-10 v1.0.1 Check cookie first then url. cookie works even if the path is more complex (e.g. sub-folder)\n     * since 2020-01-25 Removed httpRoot from namespace to prevent proxy induced errors\n     * @returns {string} Socket.IO namespace\n     */\n    _getIOnamespace() {\n\n        let ioNamespace\n\n        /** Try getting the namespace cookie. */\n        ioNamespace = this.cookies['uibuilder-namespace']\n\n        // if it wasn't available, try using the current url path\n        if (ioNamespace === undefined || ioNamespace === '') {\n            // split url path & eliminate any blank elements, and trailing or double slashes\n            const u = window.location.pathname.split('/')\n                .filter(function (t) { return t.trim() !== '' })\n\n            /** since v2.0.5 Extra check for 0 length, Issue #73. since 2017-11-06 If the last element of the path is an .html file name, remove it */\n            if (u.length > 0 && (u[u.length - 1].endsWith('.html'))) u.pop()\n\n            // Get the last part of the url path, this MUST match the namespace in uibuilder\n            ioNamespace = u.pop()\n\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via url path: ${ioNamespace}`)()\n        } else {\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via cookie: ${ioNamespace}`)()\n        }\n\n        this.url = ioNamespace\n        // Namespace HAS to start with a /\n        ioNamespace = '/' + ioNamespace\n\n        log('trace', 'uibuilder.module.js:getIOnamespace', `Final Socket.IO namespace: ${ioNamespace}`)()\n\n        return ioNamespace\n    } // --- End of set IO namespace --- //\n\n    /** Function used to check whether Socket.IO is connected to the server, reconnect if not (recursive)\n     * @param {number} [delay] Initial delay before checking (ms). Default=2000ms\n     * @param {number} [factor] Multiplication factor for subsequent checks (delay*factor). Default=1.5\n     * @param {number} [depth] Recursion depth\n     * @returns {boolean|undefined} Whether or not Socket.IO is connected to uibuilder in Node-RED\n     */\n    _checkConnect(delay, factor, depth = 1) {\n        if ( navigator.onLine === false ) return // Don't bother if we know we are offline\n\n        if (!delay) delay = this.retryMs\n        if (!factor) factor = this.retryFactor\n\n        log('trace', 'Uib:checkConnect', `Checking connection. Connected: ${this._socket.connected}. Timer: ${this.#timerid}. Depth: ${depth}. Delay: ${delay}. Factor: ${factor}`, this._socket)()\n\n        // If we are connected ...\n        if (this._socket.connected === true) {\n            // Clear the setTimeout\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this.set('ioConnected', true)\n            this.set('socketError', null)\n            return true\n        }\n\n        // ... we aren't connected so:\n        this.set('ioConnected', false)\n\n        // we only want one running at a time\n        if (this.#timerid) window.clearTimeout(this.#timerid)\n\n        // Create the new timer\n        this.#timerid = window.setTimeout(() => {\n            log('warn', 'Uib:checkConnect:setTimeout', `Socket.IO reconnection attempt. Current delay: ${delay}. Depth: ${depth}`)()\n\n            // this is necessary sometimes when the socket fails to connect on startup\n            this._socket.close()\n\n            // Try to reconnect\n            this._socket.connect()\n\n            // don't need to check whether we have connected as the timer will have been cleared if we have\n            this.#timerid = null\n\n            // @ts-ignore Create new timer for next time round with extended delay\n            this._checkConnect(delay * factor, factor, depth++)\n        }, delay)\n\n        return false\n    } // --- End of checkConnect Fn--- //\n\n    // See message handling section for msg receipt handlers\n\n    /** Called by _ioSetup when Socket.IO connects to Node-RED */\n    _onConnect() {\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n        log('info', 'Uib:ioSetup', `\u2705 SOCKET CONNECTED. Connection count: ${this.connectedNum}, Is a Recovery?: ${this._socket.recovered}. \\nNamespace: ${this.ioNamespace}`)()\n        this._dispatchCustomEvent('uibuilder:socket:connected', { 'numConnections': this.connectedNum, 'isRecovery': this._socket.recovered })\n\n        this._checkConnect() // resets any reconnection timers & sets connected flag\n    }\n\n    /** Called by _ioSetup when Socket.IO disconnects from Node-RED\n     * @param {string} reason Disconnection title\n     */\n    _onDisconnect(reason) {\n        // reason === 'io server disconnect' - redeploy of Node instance\n        // reason === 'transport close' - Node-RED terminating\n        // reason === 'ping timeout' - didn't receive a pong response?\n        log('info', 'Uib:ioSetup:socket-disconnect', `\u26D4 Socket Disconnected. Reason: ${reason}`)()\n\n        this._dispatchCustomEvent('uibuilder:socket:disconnected', reason)\n\n        /** A workaround for SIO's failure to reconnect after a disconnection */\n        this._checkConnect()\n    }\n\n    /** Setup Socket.io\n     * since v2.0.0-beta2 Moved to a function and called by the user (uibuilder.start()) so that namespace & path can be passed manually if needed\n     * @returns {boolean} Attaches socket.io manager to self._socket and updates self.ioNamespace & self.ioPath as needed\n     */\n    _ioSetup() {\n\n        // Just a notification, actual load is done outside the class (see start of file)\n        if (io === undefined) {\n            log('error', 'Uib:ioSetup', 'Socket.IO client not loaded, Node-RED comms will not work')()\n            return false\n        }\n\n        // If socket is already set up, close it and remove all of the listeners\n        if (this._socket) {\n            log('trace', 'Uib:ioSetup', 'Removing listeners in preparation for redoing Socket.IO connections')()\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this._socket.close()\n            this._socket.offAny()\n            this._socket = undefined\n            this.set('ioConnected', false)\n        }\n\n        // Update the URL path to make sure we have the right one\n        this.socketOptions.path = this.ioPath\n\n        // NOTE: this._socket.auth is now set by callback and so automatically updated for each client (re)connection. No need to set here\n\n        // Create the socket - make sure client uses Socket.IO version from the uibuilder module (using path)\n        log('trace', 'Uib:ioSetup', `About to create IO object. Transports: [${this.socketOptions.transports.join(', ')}]`)()\n        this._socket = io(this.ioNamespace, this.socketOptions)\n\n        /** When the socket is connected - set ioConnected flag and reset connect timer  */\n        this._socket.on('connect', this._onConnect.bind(this))\n\n        // RECEIVE a STANDARD, non-control msg from Node-RED server\n        this._socket.on(this._ioChannels.server, this._stdMsgFromServer.bind(this))\n\n        // RECEIVE a CONTROL msg from Node-RED server - see also sendCtrl()\n        this._socket.on(this._ioChannels.control, this._ctrlMsgFromServer.bind(this))\n\n        // When the socket is disconnected ..............\n        this._socket.on('disconnect', this._onDisconnect.bind(this))\n\n        // Socket.io connection error - probably the wrong ioPath - or client is offline\n        this._socket.on('connect_error', (err) => {\n            if ( navigator.onLine === false ) return // Don't bother with an error if we know we are offline\n            log('error', 'Uib:ioSetup:connect_error', `\u274C Socket.IO Connect Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket connect error processing ---\n\n        // Socket.io error - from the server (socket.use middleware triggered an error response)\n        this._socket.on('error', (err) => {\n            log('error', 'Uib:ioSetup:error', `\u274C Socket.IO Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket error processing ---\n\n        // Ensure we are connected, retry if not\n        this._checkConnect()\n\n        return true\n\n        /* We really don't need these, just for interest\n            self._socket.io.on('packet', function onPacket(data){\n                // we get one of these for each REAL msg (not ping/pong)\n                console.debug('PACKET', data)\n            })\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n                //console.dir(self._socket)\n            }) // --- End of socket pong processing ---\n            self._socket.io.on('packet', function(data){\n                // We get one of these for actual messages, not ping/pong\n                console.debug('PACKET', data)\n            })\n            self._socket.on('connect_timeout', function(timeout) {\n                console.debug('SOCKET CONNECT TIMEOUT - Namespace: ' + ioNamespace + ', Timeout: ' + timeout)\n            }) // --- End of socket connect timeout processing ---\n            self._socket.on('reconnect', function(attemptNum) {\n                console.debug('SOCKET RECONNECTED - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect processing ---\n            self._socket.on('reconnect_attempt', function(attemptNum) {\n                console.debug('SOCKET RECONNECT ATTEMPT - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect_attempt processing ---\n            self._socket.on('reconnecting', function(attemptNum) {\n                console.debug('SOCKET RECONNECTING - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnecting processing ---\n            self._socket.on('reconnect_error', function(err) {\n                console.debug('SOCKET RECONNECT ERROR - Namespace: ' + ioNamespace + ', Reason: ' + err.message)\n                //console.dir(err)\n            }) // --- End of socket reconnect_error processing ---\n            self._socket.on('reconnect_failed', function() {\n                console.debug('SOCKET RECONNECT FAILED - Namespace: ' + ioNamespace)\n            }) // --- End of socket reconnect_failed processing ---\n            self._socket.on('ping', function() {\n                console.debug('SOCKET PING')\n            }) // --- End of socket ping processing ---\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n            }) // --- End of socket pong processing ---\n            */\n    } // ---- End of ioSetup ---- //\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Class construction & startup method -------- //\n\n    constructor() {\n        log('trace', 'Uib:constructor', 'Starting')()\n\n        // Track whether the client is online or offline\n        window.addEventListener('offline', (e) => {\n            this.set('online', false)\n            this.set('ioConnected', false)\n            log('warn', 'Browser', 'DISCONNECTED from network')()\n        })\n        window.addEventListener('online', (e) => {\n            this.set('online', true)\n            log('warn', 'Browser', 'Reconnected to network')()\n            this._checkConnect()\n        })\n\n        document.cookie.split(';').forEach((c) => {\n            const splitC = c.split('=')\n            this.cookies[splitC[0].trim()] = splitC[1]\n        })\n\n        /** Client ID set by uibuilder - lasts until browser profile is closed, applies to all tabs */\n        this.set('clientId', this.cookies['uibuilder-client-id'])\n        log('trace', 'Uib:constructor', 'Client ID: ', this.clientId)()\n\n        /** Tab ID - lasts while the tab is open (even if reloaded)\n         * WARNING: Duplicating a tab retains the same tabId\n         */\n        this.set('tabId', window.sessionStorage.getItem('tabId'))\n        if (!this.tabId) {\n            this.set('tabId', `t${Math.floor(Math.random() * 1000000)}`)\n            window.sessionStorage.setItem('tabId', this.tabId)\n        }\n\n        // document.addEventListener('pagehide', (event) => {\n        //     // console.log(`pagehide. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pagehide. From Cache?: ${event.persisted}`)\n        // })\n        // document.addEventListener('pageshow', (event) => {\n        //     // console.log(`pageshow. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pageshow. From Cache?: ${event.persisted}`)\n        // })\n        document.addEventListener('load', () => {\n            this.set('isVisible', true)\n        })\n        document.addEventListener('visibilitychange', () => {\n            // hidden=unload, minimise. visible=un-minimise (not fired on load)\n            this.set('isVisible', document.visibilityState === 'visible')\n            this.sendCtrl({ uibuilderCtrl: 'visibility', isVisible: this.isVisible })\n            // navigator.userActivation is experimental Chromium only\n            // console.log('visibilitychange', ':', `Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n            // navigator.sendBeacon('./_clientLog', `${(new Date()).toISOString()} Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n        })\n\n        // Set a listener to update showStatus table if it is active\n        document.addEventListener('uibuilder:propertyChanged', (event) => {\n            if (!this.#isShowStatus) return\n\n            // @ts-ignore\n            if (event.detail.prop in this.#showStatus) {\n                // @ts-ignore\n                document.querySelector(`td[data-vartype=\"${event.detail.prop}\"]`).innerText = JSON.stringify(event.detail.value)\n            }\n        })\n\n        this.set('ioNamespace', this._getIOnamespace())\n\n        //#region - Try to make sure client uses Socket.IO client version from the uibuilder module (using cookie or path) @since v2.0.0 2019-02-24 allows for httpNodeRoot\n\n        /** httpNodeRoot (to set path) */\n        if ('uibuilder-webRoot' in this.cookies) {\n            this.set('httpNodeRoot', this.cookies['uibuilder-webRoot'])\n            log('trace', 'Uib:constructor', `httpNodeRoot set by cookie to \"${this.httpNodeRoot}\"`)()\n        } else {\n            // split current url path, eliminate any blank elements and trailing or double slashes\n            const fullPath = window.location.pathname.split('/').filter(function (t) { return t.trim() !== '' })\n            /** handle url includes file name - @since v2.0.5 Extra check for 0 length, Issue #73. */\n            if (fullPath.length > 0 && fullPath[fullPath.length - 1].endsWith('.html')) fullPath.pop()\n            fullPath.pop() // gives the last path section of the url\n            this.set('httpNodeRoot', `/${fullPath.join('/')}`)\n            log('trace', '[Uib:constructor]', `httpNodeRoot set by URL parsing to \"${this.httpNodeRoot}\". NOTE: This may fail for pages in sub-folders.`)()\n        }\n        this.set('ioPath', urlJoin(this.httpNodeRoot, Uib._meta.displayName, 'vendor', 'socket.io'))\n        log('trace', 'Uib:constructor', `ioPath: \"${this.ioPath}\"`)()\n\n        //#endregion\n\n        // Work out pageName\n        this.set('pageName', window.location.pathname.replace(`${this.ioNamespace}/`, ''))\n        if ( this.pageName.endsWith('/') ) this.set('pageName', `${this.pageName}index.html`)\n        if ( this.pageName === '' ) this.set('pageName', 'index.html')\n\n        // Attempt to restore autoload variables\n        try {\n            const autoloadVars = this.getStore('_uibAutoloadVars')\n            if (Object.keys(autoloadVars).length > 0) {\n                Object.keys(autoloadVars).forEach( (id) => {\n                    this.set(id, this.getStore(id))\n                })\n            }\n        } catch (e) {}\n\n        this._dispatchCustomEvent('uibuilder:constructorComplete')\n\n        log('trace', 'Uib:constructor', 'Ending')()\n    }\n\n    /** Start up Socket.IO comms and listeners\n     * This has to be done separately because if running from a web page in a sub-folder of src/dist, uibuilder cannot\n     * necessarily work out the correct ioPath to use.\n     * Also, if cookies aren't permitted in the browser, both ioPath and ioNamespace may need to be specified.\n     * @param {object} [options] The start options object.\n     * @returns {void}\n     */\n    start(options) {\n        log('trace', 'Uib:start', 'Starting')()\n\n        // Cancel the msg event handler if already present\n        if ( this.#MsgHandler ) this.cancelChange('msg', this.#MsgHandler)\n\n        if (this.started === true) {\n            log('info', 'Uib:start', 'Start function already called. Resetting Socket.IO and msg handler.')()\n        }\n\n        log('log', 'Uib:start', 'Cookies: ', this.cookies, `\\nClient ID: ${this.clientId}`)()\n        log('trace', 'Uib:start', 'ioNamespace: ', this.ioNamespace, `\\nioPath: ${this.ioPath}`)()\n\n        // Handle options\n        if (options) {\n            if (options.ioNamespace !== undefined && options.ioNamespace !== null && options.ioNamespace !== '') this.set('ioNamespace', options.ioNamespace)\n            if (options.ioPath !== undefined && options.ioPath !== null && options.ioPath !== '') this.set('ioPath', options.ioPath)\n            // See below for handling of options.loadStylesheet\n        }\n\n        // Do we need to load styles?\n        if ( document.styleSheets.length >= 1 || (document.styleSheets.length === 1 && document.styleSheets[0].cssRules.length === 0) ) {\n            log('info', 'Uib:start', 'Styles already loaded so not loading uibuilder default styles.')()\n        } else {\n            if (options && options.loadStylesheet === false) log('info', 'Uib:start', 'No styles loaded & options.loadStylesheet === false.')()\n            else {\n                log('info', 'Uib:start', 'No styles loaded, loading uibuilder default styles.')()\n                this.loadStyleSrc(`${this.httpNodeRoot}/uibuilder/uib-brand.min.css`)\n            }\n        }\n\n        /** Handle specialist messages like reload and _ui -> Moved to _msgRcvdEvents */\n\n        // Track last browser navigation type: navigate, reload, back_forward, prerender\n        const [entry] = performance.getEntriesByType('navigation')\n        // @ts-ignore\n        this.set('lastNavType', entry.type)\n\n        // Start up (or restart) Socket.IO connections and listeners. Returns false if io not found\n        this.set('started', this._ioSetup())\n\n        if ( this.started === true ) {\n            log('trace', 'Uib:start', 'Start completed. Socket.IO client library loaded.')()\n        } else {\n            log('error', 'Uib:start', 'Start completed. ERROR: Socket.IO client library NOT LOADED.')()\n        }\n\n        // Watch for URL hash changes in case using a front-end router. Updates watched var `urlHash` and socket.io `auth.urlHash`\n        this._watchHashChanges()\n\n        // Check if Vue is present (used for dynamic UI processing)\n        if (window['Vue']) {\n            this.set('isVue', true)\n            try {\n                this.set('vueVersion', window['Vue'].version)\n            } catch (e) { }\n            log('trace', 'Uib:start', `VueJS is loaded. Version: ${this.vueVersion}`)()\n        } else {\n            log('trace', 'Uib:start', 'VueJS is not loaded.')()\n        }\n\n        // Check if DOMPurify library is loaded\n        if (window['DOMPurify']) {\n            this.set('purify', true)\n            log('trace', 'Uib:start', 'DOMPurify is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'DOMPurify is not loaded.')()\n        }\n        // Check if Markdown-IT library is loaded\n        if (window['markdownit']) {\n            this.set('markdown', true)\n            log('trace', 'Uib:start', 'Markdown-IT is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'Markdown-IT is not loaded.')()\n        }\n\n        // if (window['DOMPurify']) {\n        //     this.set('purify', true)\n        //     log('trace', 'Uib:start', 'DOMPurify is loaded.')\n        // } else {\n        //     log('trace', 'Uib:start', 'DOMPurify is not loaded.')\n        // }\n\n        // Set up msg listener for the optional showMsg\n        this.onChange('msg', (msg) => {\n            if (this.#isShowMsg === true) {\n                const eMsg = document.getElementById('uib_last_msg')\n                if (eMsg) eMsg.innerHTML = this.syntaxHighlight(msg)\n            }\n        })\n\n        this._dispatchCustomEvent('uibuilder:startComplete')\n    }\n\n    //#endregion -------- ------------ -------- //\n} // ==== End of Class Uib ====\n\n//#region --- Wrap up - get things started ---\n\n// Create an instance (we will only ever want one)\nconst uibuilder = new Uib()\n\n// Assign reference to the instance to the global `window` object\n// Only useful if loading via <script> tag - prefer loading via `import uibuilder from ...`\nif (!window['uibuilder']) {\n    window['uibuilder'] = uibuilder\n} else {\n    log('error', 'uibuilder.module.js', '`uibuilder` already assigned to window. Have you tried to load it more than once?')\n}\nif (!window['uib']) {\n    window['uib'] = uibuilder\n} else {\n    log('warn', 'uibuilder.module.js', '`uib` shortcut already assigned to window.')\n}\n\n// Assign `$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$`.\nif (!window['$']) {\n    /** @type {HTMLElement} */\n    window['$'] = window['uibuilder'].$ // document.querySelector.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` instead.')\n}\n// Assign `$$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$$']) {\n    /** @type {HTMLElement} */\n    window['$$'] = window['uibuilder'].$$ // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` instead.')\n}\n\n// Can import as `import uibuilder from ...` OR `import {uibuilder} from ...`\nexport { uibuilder }\nexport default uibuilder\n\n// Attempt to run start fn\nuibuilder.start()\n\n// Add the class as a new Custom Element to the window object\ncustomElements.define('uib-var', UibVar)\n\n//#endregion --- Wrap up ---\n\n// EOF\n", "/** A zero dependency web component that will display a managed uibuilder variable.\n *\n * Version: 0.0.1 2023-10-07\n *\n * ToDo:\n * -\n */\n/*\n  Copyright (c) 2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n// const template = document.createElement('template')\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<link type=\"text/css\" rel=\"stylesheet\" href=\"\"../uibuilder/uib-brand.min.css\"\" media=\"all\"><span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`\n// {/* <style>@import url(\"../uibuilder/uib-brand.min.css\");</style><span></span> */}\n// `\n\nexport default class UibVar extends HTMLElement {\n    //#region --- Class Properties ---\n    /** @type {string} Name of the uibuilder mangaged variable to use */\n    variable\n    /** Current value of the watched variable */\n    value\n    /** Whether to output if the variable is undefined */\n    undefined = false\n    /** Whether to send update value to Node-RED on change */\n    report = false\n    /** What is the value type */\n    type = 'plain'\n    /** what are the available types? */\n    types = ['plain', 'html', 'markdown', 'object']\n\n    /** Mini jQuery-like shadow dom selector (see constructor) */\n    $\n    \n    /** Holds a count of how many instances of this component are on the page */\n    static _iCount = 0\n    /** @type {Array<string>} List of all of the html attribs (props) listened to */\n    static props = ['name', 'id', 'variable', 'undefined', 'report', 'type']\n    //#endregion --- Class Properties ---\n\n    constructor() {\n        super()\n        this.shadow = this.attachShadow({ mode: 'open', delegatesFocus: true })\n            // .append(template.content.cloneNode(true))\n\n        this.$ = this.shadowRoot.querySelector.bind(this.shadowRoot)\n\n        // Apply external styles to the shadow dom\n        this.css = document.createElement(\"link\")\n        this.css.setAttribute(\"type\", \"text/css\")\n        this.css.setAttribute(\"rel\", \"stylesheet\")\n        this.css.setAttribute(\"href\", \"../uibuilder/uib-brand.min.css\")\n\n        this.dispatchEvent(new Event(`uib-var:construction`, { bubbles: true, composed: true }))\n    }\n\n    // Makes HTML attribute change watched\n    static get observedAttributes() {\n        return UibVar.props\n    }\n\n    /** NOTE: On initial startup, this is called for each watched attrib set in HTML - BEFORE connectedCallback is called  */\n    attributeChangedCallback(attrib, oldVal, newVal) {\n        if ( oldVal === newVal ) return\n\n        switch (attrib) {\n            case 'variable': {\n                if (newVal === '') throw new Error('[uib-var] Attribute \"variable\" MUST be set to a UIBUILDER managed variable name')\n                this.variable = newVal\n                this.doWatch()\n                break\n            }\n            case 'undefined': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.undefined = true\n                else this.undefined = false\n                break\n            }\n            case 'report': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.report = true\n                else this.report = false\n                break\n            }\n            case 'type': {\n                if (newVal === '' || !this.types.includes(newVal.toLowerCase())) this.type = 'plain'\n                else this.type = newVal\n                break\n            }\n\n            default: {\n                this[attrib] = newVal\n                break\n            }\n        }\n    } // --- end of attributeChangedCallback --- //\n\n    // Runs when an instance is added to the DOM\n    connectedCallback() {\n        // Make sure instance has an ID. Create an id from name or calculation if needed\n        if (!this.id) {\n            if (!this.name) this.name = this.getAttribute('name')\n            if (this.name) this.id = this.name.toLowerCase().replace(/\\s/g, '_')\n            else this.id = `uib-var-${++UibVar._iCount}`\n        }\n    }  // ---- end of connectedCallback ---- //\n\n    // Runs when an instance is removed from the DOM\n    // disconnectedCallback() {} // ---- end of disconnectedCallback ---- //\n\n    /** Process changes to the required uibuilder variable */\n    doWatch() {\n        if (!this.variable) throw new Error('No variable name provided')\n        // if (!window['uibuilder']) throw new Error('UIBUILDER client library not loaded - this component must be loaded AFTER the UIBUILDER library')\n\n        this.value = window['uibuilder'].get(this.variable)\n        this.varDom()\n\n        // Watch for changes in the variable\n        window['uibuilder'].onChange(this.variable, (val) => {\n            this.value = val\n            this.varDom()\n            if (this.report === true) window['uibuilder'].send({topic: this.variable, payload: this.value || undefined})\n        })\n    }\n\n    /** Convert this.value to DOM output */\n    varDom() {\n        // If user doesn't want to show undefined vars, allow the component slot to show instead\n        if (this.value === undefined && this.undefined !== true) { \n            this.shadow.innerHTML = '<slot></slot>'\n            return\n        }\n        \n        let val = this.value\n\n        // console.log('\uD83E\uDDEA varDOM: ', val, typeof val, this.type)\n\n        switch (this.type) {\n            case 'markdown': {\n                this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(window['uibuilder'].convertMarkdown(val))\n                break\n            }\n        \n            case 'object': {\n                // console.log(window['uibuilder'].syntaxHighlight(val))\n                this.shadow.innerHTML = `<pre class=\"syntax-highlight\">${window['uibuilder'].syntaxHighlight(val)}</pre>`\n                break\n            }\n        \n            case 'plain':\n            case 'html':\n            default: {\n                const t = typeof val\n                if (Array.isArray(val) || t === '[object Object]' || t === 'object') {\n                    try {\n                        this.shadow.innerHTML = JSON.stringify(val)\n                    } catch (e) {\n                        this.shadow.innerHTML = val\n                    }\n                } else {\n                    this.shadow.innerHTML = val\n                }\n                break\n            }\n        }\n\n        this.shadow.appendChild(this.css)\n        // this.$('span').innerHTML = window['uibuilder'].sanitiseHTML(val)\n        // this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(val)\n    }\n}\n\n// Add the class as a new Custom Element to the window object \n// customElements.define('uib-var', UibVar)\n", "const PACKET_TYPES = Object.create(null); // no Map = no polyfill\nPACKET_TYPES[\"open\"] = \"0\";\nPACKET_TYPES[\"close\"] = \"1\";\nPACKET_TYPES[\"ping\"] = \"2\";\nPACKET_TYPES[\"pong\"] = \"3\";\nPACKET_TYPES[\"message\"] = \"4\";\nPACKET_TYPES[\"upgrade\"] = \"5\";\nPACKET_TYPES[\"noop\"] = \"6\";\nconst PACKET_TYPES_REVERSE = Object.create(null);\nObject.keys(PACKET_TYPES).forEach(key => {\n    PACKET_TYPES_REVERSE[PACKET_TYPES[key]] = key;\n});\nconst ERROR_PACKET = { type: \"error\", data: \"parser error\" };\nexport { PACKET_TYPES, PACKET_TYPES_REVERSE, ERROR_PACKET };\n", "import { PACKET_TYPES } from \"./commons.js\";\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        Object.prototype.toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\n// ArrayBuffer.isView method is not defined in IE10\nconst isView = obj => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj && obj.buffer instanceof ArrayBuffer;\n};\nconst encodePacket = ({ type, data }, supportsBinary, callback) => {\n    if (withNativeBlob && data instanceof Blob) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(data, callback);\n        }\n    }\n    else if (withNativeArrayBuffer &&\n        (data instanceof ArrayBuffer || isView(data))) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(new Blob([data]), callback);\n        }\n    }\n    // plain string\n    return callback(PACKET_TYPES[type] + (data || \"\"));\n};\nconst encodeBlobAsBase64 = (data, callback) => {\n    const fileReader = new FileReader();\n    fileReader.onload = function () {\n        const content = fileReader.result.split(\",\")[1];\n        callback(\"b\" + (content || \"\"));\n    };\n    return fileReader.readAsDataURL(data);\n};\nfunction toArray(data) {\n    if (data instanceof Uint8Array) {\n        return data;\n    }\n    else if (data instanceof ArrayBuffer) {\n        return new Uint8Array(data);\n    }\n    else {\n        return new Uint8Array(data.buffer, data.byteOffset, data.byteLength);\n    }\n}\nlet TEXT_ENCODER;\nexport function encodePacketToBinary(packet, callback) {\n    if (withNativeBlob && packet.data instanceof Blob) {\n        return packet.data\n            .arrayBuffer()\n            .then(toArray)\n            .then(callback);\n    }\n    else if (withNativeArrayBuffer &&\n        (packet.data instanceof ArrayBuffer || isView(packet.data))) {\n        return callback(toArray(packet.data));\n    }\n    encodePacket(packet, false, encoded => {\n        if (!TEXT_ENCODER) {\n            TEXT_ENCODER = new TextEncoder();\n        }\n        callback(TEXT_ENCODER.encode(encoded));\n    });\n}\nexport { encodePacket };\n", "// imported from https://github.com/socketio/base64-arraybuffer\nconst chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';\n// Use a lookup table to find the index.\nconst lookup = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);\nfor (let i = 0; i < chars.length; i++) {\n    lookup[chars.charCodeAt(i)] = i;\n}\nexport const encode = (arraybuffer) => {\n    let bytes = new Uint8Array(arraybuffer), i, len = bytes.length, base64 = '';\n    for (i = 0; i < len; i += 3) {\n        base64 += chars[bytes[i] >> 2];\n        base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];\n        base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];\n        base64 += chars[bytes[i + 2] & 63];\n    }\n    if (len % 3 === 2) {\n        base64 = base64.substring(0, base64.length - 1) + '=';\n    }\n    else if (len % 3 === 1) {\n        base64 = base64.substring(0, base64.length - 2) + '==';\n    }\n    return base64;\n};\nexport const decode = (base64) => {\n    let bufferLength = base64.length * 0.75, len = base64.length, i, p = 0, encoded1, encoded2, encoded3, encoded4;\n    if (base64[base64.length - 1] === '=') {\n        bufferLength--;\n        if (base64[base64.length - 2] === '=') {\n            bufferLength--;\n        }\n    }\n    const arraybuffer = new ArrayBuffer(bufferLength), bytes = new Uint8Array(arraybuffer);\n    for (i = 0; i < len; i += 4) {\n        encoded1 = lookup[base64.charCodeAt(i)];\n        encoded2 = lookup[base64.charCodeAt(i + 1)];\n        encoded3 = lookup[base64.charCodeAt(i + 2)];\n        encoded4 = lookup[base64.charCodeAt(i + 3)];\n        bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n        bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n        bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n    }\n    return arraybuffer;\n};\n", "import { ERROR_PACKET, PACKET_TYPES_REVERSE } from \"./commons.js\";\nimport { decode } from \"./contrib/base64-arraybuffer.js\";\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nexport const decodePacket = (encodedPacket, binaryType) => {\n    if (typeof encodedPacket !== \"string\") {\n        return {\n            type: \"message\",\n            data: mapBinary(encodedPacket, binaryType)\n        };\n    }\n    const type = encodedPacket.charAt(0);\n    if (type === \"b\") {\n        return {\n            type: \"message\",\n            data: decodeBase64Packet(encodedPacket.substring(1), binaryType)\n        };\n    }\n    const packetType = PACKET_TYPES_REVERSE[type];\n    if (!packetType) {\n        return ERROR_PACKET;\n    }\n    return encodedPacket.length > 1\n        ? {\n            type: PACKET_TYPES_REVERSE[type],\n            data: encodedPacket.substring(1)\n        }\n        : {\n            type: PACKET_TYPES_REVERSE[type]\n        };\n};\nconst decodeBase64Packet = (data, binaryType) => {\n    if (withNativeArrayBuffer) {\n        const decoded = decode(data);\n        return mapBinary(decoded, binaryType);\n    }\n    else {\n        return { base64: true, data }; // fallback for old browsers\n    }\n};\nconst mapBinary = (data, binaryType) => {\n    switch (binaryType) {\n        case \"blob\":\n            if (data instanceof Blob) {\n                // from WebSocket + binaryType \"blob\"\n                return data;\n            }\n            else {\n                // from HTTP long-polling or WebTransport\n                return new Blob([data]);\n            }\n        case \"arraybuffer\":\n        default:\n            if (data instanceof ArrayBuffer) {\n                // from HTTP long-polling (base64) or WebSocket + binaryType \"arraybuffer\"\n                return data;\n            }\n            else {\n                // from WebTransport (Uint8Array)\n                return data.buffer;\n            }\n    }\n};\n", "import { encodePacket, encodePacketToBinary } from \"./encodePacket.js\";\nimport { decodePacket } from \"./decodePacket.js\";\nimport { ERROR_PACKET } from \"./commons.js\";\nconst SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text\nconst encodePayload = (packets, callback) => {\n    // some packets may be added to the array while encoding, so the initial length must be saved\n    const length = packets.length;\n    const encodedPackets = new Array(length);\n    let count = 0;\n    packets.forEach((packet, i) => {\n        // force base64 encoding for binary packets\n        encodePacket(packet, false, encodedPacket => {\n            encodedPackets[i] = encodedPacket;\n            if (++count === length) {\n                callback(encodedPackets.join(SEPARATOR));\n            }\n        });\n    });\n};\nconst decodePayload = (encodedPayload, binaryType) => {\n    const encodedPackets = encodedPayload.split(SEPARATOR);\n    const packets = [];\n    for (let i = 0; i < encodedPackets.length; i++) {\n        const decodedPacket = decodePacket(encodedPackets[i], binaryType);\n        packets.push(decodedPacket);\n        if (decodedPacket.type === \"error\") {\n            break;\n        }\n    }\n    return packets;\n};\nexport function createPacketEncoderStream() {\n    return new TransformStream({\n        transform(packet, controller) {\n            encodePacketToBinary(packet, encodedPacket => {\n                const payloadLength = encodedPacket.length;\n                let header;\n                // inspired by the WebSocket format: https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API/Writing_WebSocket_servers#decoding_payload_length\n                if (payloadLength < 126) {\n                    header = new Uint8Array(1);\n                    new DataView(header.buffer).setUint8(0, payloadLength);\n                }\n                else if (payloadLength < 65536) {\n                    header = new Uint8Array(3);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 126);\n                    view.setUint16(1, payloadLength);\n                }\n                else {\n                    header = new Uint8Array(9);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 127);\n                    view.setBigUint64(1, BigInt(payloadLength));\n                }\n                // first bit indicates whether the payload is plain text (0) or binary (1)\n                if (packet.data && typeof packet.data !== \"string\") {\n                    header[0] |= 0x80;\n                }\n                controller.enqueue(header);\n                controller.enqueue(encodedPacket);\n            });\n        }\n    });\n}\nlet TEXT_DECODER;\nfunction totalLength(chunks) {\n    return chunks.reduce((acc, chunk) => acc + chunk.length, 0);\n}\nfunction concatChunks(chunks, size) {\n    if (chunks[0].length === size) {\n        return chunks.shift();\n    }\n    const buffer = new Uint8Array(size);\n    let j = 0;\n    for (let i = 0; i < size; i++) {\n        buffer[i] = chunks[0][j++];\n        if (j === chunks[0].length) {\n            chunks.shift();\n            j = 0;\n        }\n    }\n    if (chunks.length && j < chunks[0].length) {\n        chunks[0] = chunks[0].slice(j);\n    }\n    return buffer;\n}\nexport function createPacketDecoderStream(maxPayload, binaryType) {\n    if (!TEXT_DECODER) {\n        TEXT_DECODER = new TextDecoder();\n    }\n    const chunks = [];\n    let state = 0 /* READ_HEADER */;\n    let expectedLength = -1;\n    let isBinary = false;\n    return new TransformStream({\n        transform(chunk, controller) {\n            chunks.push(chunk);\n            while (true) {\n                if (state === 0 /* READ_HEADER */) {\n                    if (totalLength(chunks) < 1) {\n                        break;\n                    }\n                    const header = concatChunks(chunks, 1);\n                    isBinary = (header[0] & 0x80) === 0x80;\n                    expectedLength = header[0] & 0x7f;\n                    if (expectedLength < 126) {\n                        state = 3 /* READ_PAYLOAD */;\n                    }\n                    else if (expectedLength === 126) {\n                        state = 1 /* READ_EXTENDED_LENGTH_16 */;\n                    }\n                    else {\n                        state = 2 /* READ_EXTENDED_LENGTH_64 */;\n                    }\n                }\n                else if (state === 1 /* READ_EXTENDED_LENGTH_16 */) {\n                    if (totalLength(chunks) < 2) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 2);\n                    expectedLength = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length).getUint16(0);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else if (state === 2 /* READ_EXTENDED_LENGTH_64 */) {\n                    if (totalLength(chunks) < 8) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 8);\n                    const view = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length);\n                    const n = view.getUint32(0);\n                    if (n > Math.pow(2, 53 - 32) - 1) {\n                        // the maximum safe integer in JavaScript is 2^53 - 1\n                        controller.enqueue(ERROR_PACKET);\n                        break;\n                    }\n                    expectedLength = n * Math.pow(2, 32) + view.getUint32(4);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else {\n                    if (totalLength(chunks) < expectedLength) {\n                        break;\n                    }\n                    const data = concatChunks(chunks, expectedLength);\n                    controller.enqueue(decodePacket(isBinary ? data : TEXT_DECODER.decode(data), binaryType));\n                    state = 0 /* READ_HEADER */;\n                }\n                if (expectedLength === 0 || expectedLength > maxPayload) {\n                    controller.enqueue(ERROR_PACKET);\n                    break;\n                }\n            }\n        }\n    });\n}\nexport const protocol = 4;\nexport { encodePacket, encodePayload, decodePacket, decodePayload };\n", "/**\n * Initialize a new `Emitter`.\n *\n * @api public\n */\n\nexport function Emitter(obj) {\n  if (obj) return mixin(obj);\n}\n\n/**\n * Mixin the emitter properties.\n *\n * @param {Object} obj\n * @return {Object}\n * @api private\n */\n\nfunction mixin(obj) {\n  for (var key in Emitter.prototype) {\n    obj[key] = Emitter.prototype[key];\n  }\n  return obj;\n}\n\n/**\n * Listen on the given `event` with `fn`.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.on =\nEmitter.prototype.addEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])\n    .push(fn);\n  return this;\n};\n\n/**\n * Adds an `event` listener that will be invoked a single\n * time then automatically removed.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.once = function(event, fn){\n  function on() {\n    this.off(event, on);\n    fn.apply(this, arguments);\n  }\n\n  on.fn = fn;\n  this.on(event, on);\n  return this;\n};\n\n/**\n * Remove the given callback for `event` or all\n * registered callbacks.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.off =\nEmitter.prototype.removeListener =\nEmitter.prototype.removeAllListeners =\nEmitter.prototype.removeEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n\n  // all\n  if (0 == arguments.length) {\n    this._callbacks = {};\n    return this;\n  }\n\n  // specific event\n  var callbacks = this._callbacks['$' + event];\n  if (!callbacks) return this;\n\n  // remove all handlers\n  if (1 == arguments.length) {\n    delete this._callbacks['$' + event];\n    return this;\n  }\n\n  // remove specific handler\n  var cb;\n  for (var i = 0; i < callbacks.length; i++) {\n    cb = callbacks[i];\n    if (cb === fn || cb.fn === fn) {\n      callbacks.splice(i, 1);\n      break;\n    }\n  }\n\n  // Remove event specific arrays for event types that no\n  // one is subscribed for to avoid memory leak.\n  if (callbacks.length === 0) {\n    delete this._callbacks['$' + event];\n  }\n\n  return this;\n};\n\n/**\n * Emit `event` with the given args.\n *\n * @param {String} event\n * @param {Mixed} ...\n * @return {Emitter}\n */\n\nEmitter.prototype.emit = function(event){\n  this._callbacks = this._callbacks || {};\n\n  var args = new Array(arguments.length - 1)\n    , callbacks = this._callbacks['$' + event];\n\n  for (var i = 1; i < arguments.length; i++) {\n    args[i - 1] = arguments[i];\n  }\n\n  if (callbacks) {\n    callbacks = callbacks.slice(0);\n    for (var i = 0, len = callbacks.length; i < len; ++i) {\n      callbacks[i].apply(this, args);\n    }\n  }\n\n  return this;\n};\n\n// alias used for reserved events (protected method)\nEmitter.prototype.emitReserved = Emitter.prototype.emit;\n\n/**\n * Return array of callbacks for `event`.\n *\n * @param {String} event\n * @return {Array}\n * @api public\n */\n\nEmitter.prototype.listeners = function(event){\n  this._callbacks = this._callbacks || {};\n  return this._callbacks['$' + event] || [];\n};\n\n/**\n * Check if this emitter has `event` handlers.\n *\n * @param {String} event\n * @return {Boolean}\n * @api public\n */\n\nEmitter.prototype.hasListeners = function(event){\n  return !! this.listeners(event).length;\n};\n", "export const globalThisShim = (() => {\n    if (typeof self !== \"undefined\") {\n        return self;\n    }\n    else if (typeof window !== \"undefined\") {\n        return window;\n    }\n    else {\n        return Function(\"return this\")();\n    }\n})();\n", "import { globalThisShim as globalThis } from \"./globalThis.js\";\nexport function pick(obj, ...attr) {\n    return attr.reduce((acc, k) => {\n        if (obj.hasOwnProperty(k)) {\n            acc[k] = obj[k];\n        }\n        return acc;\n    }, {});\n}\n// Keep a reference to the real timeout functions so they can be used when overridden\nconst NATIVE_SET_TIMEOUT = globalThis.setTimeout;\nconst NATIVE_CLEAR_TIMEOUT = globalThis.clearTimeout;\nexport function installTimerFunctions(obj, opts) {\n    if (opts.useNativeTimers) {\n        obj.setTimeoutFn = NATIVE_SET_TIMEOUT.bind(globalThis);\n        obj.clearTimeoutFn = NATIVE_CLEAR_TIMEOUT.bind(globalThis);\n    }\n    else {\n        obj.setTimeoutFn = globalThis.setTimeout.bind(globalThis);\n        obj.clearTimeoutFn = globalThis.clearTimeout.bind(globalThis);\n    }\n}\n// base64 encoded buffers are about 33% bigger (https://en.wikipedia.org/wiki/Base64)\nconst BASE64_OVERHEAD = 1.33;\n// we could also have used `new Blob([obj]).size`, but it isn't supported in IE9\nexport function byteLength(obj) {\n    if (typeof obj === \"string\") {\n        return utf8Length(obj);\n    }\n    // arraybuffer or blob\n    return Math.ceil((obj.byteLength || obj.size) * BASE64_OVERHEAD);\n}\nfunction utf8Length(str) {\n    let c = 0, length = 0;\n    for (let i = 0, l = str.length; i < l; i++) {\n        c = str.charCodeAt(i);\n        if (c < 0x80) {\n            length += 1;\n        }\n        else if (c < 0x800) {\n            length += 2;\n        }\n        else if (c < 0xd800 || c >= 0xe000) {\n            length += 3;\n        }\n        else {\n            i++;\n            length += 4;\n        }\n    }\n    return length;\n}\n", "// imported from https://github.com/galkn/querystring\n/**\n * Compiles a querystring\n * Returns string representation of the object\n *\n * @param {Object}\n * @api private\n */\nexport function encode(obj) {\n    let str = '';\n    for (let i in obj) {\n        if (obj.hasOwnProperty(i)) {\n            if (str.length)\n                str += '&';\n            str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);\n        }\n    }\n    return str;\n}\n/**\n * Parses a simple querystring into an object\n *\n * @param {String} qs\n * @api private\n */\nexport function decode(qs) {\n    let qry = {};\n    let pairs = qs.split('&');\n    for (let i = 0, l = pairs.length; i < l; i++) {\n        let pair = pairs[i].split('=');\n        qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);\n    }\n    return qry;\n}\n", "import { decodePacket } from \"engine.io-parser\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions } from \"./util.js\";\nimport { encode } from \"./contrib/parseqs.js\";\nexport class TransportError extends Error {\n    constructor(reason, description, context) {\n        super(reason);\n        this.description = description;\n        this.context = context;\n        this.type = \"TransportError\";\n    }\n}\nexport class Transport extends Emitter {\n    /**\n     * Transport abstract constructor.\n     *\n     * @param {Object} opts - options\n     * @protected\n     */\n    constructor(opts) {\n        super();\n        this.writable = false;\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.query = opts.query;\n        this.socket = opts.socket;\n    }\n    /**\n     * Emits an error.\n     *\n     * @param {String} reason\n     * @param description\n     * @param context - the error context\n     * @return {Transport} for chaining\n     * @protected\n     */\n    onError(reason, description, context) {\n        super.emitReserved(\"error\", new TransportError(reason, description, context));\n        return this;\n    }\n    /**\n     * Opens the transport.\n     */\n    open() {\n        this.readyState = \"opening\";\n        this.doOpen();\n        return this;\n    }\n    /**\n     * Closes the transport.\n     */\n    close() {\n        if (this.readyState === \"opening\" || this.readyState === \"open\") {\n            this.doClose();\n            this.onClose();\n        }\n        return this;\n    }\n    /**\n     * Sends multiple packets.\n     *\n     * @param {Array} packets\n     */\n    send(packets) {\n        if (this.readyState === \"open\") {\n            this.write(packets);\n        }\n        else {\n            // this might happen if the transport was silently closed in the beforeunload event handler\n        }\n    }\n    /**\n     * Called upon open\n     *\n     * @protected\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        this.writable = true;\n        super.emitReserved(\"open\");\n    }\n    /**\n     * Called with data.\n     *\n     * @param {String} data\n     * @protected\n     */\n    onData(data) {\n        const packet = decodePacket(data, this.socket.binaryType);\n        this.onPacket(packet);\n    }\n    /**\n     * Called with a decoded packet.\n     *\n     * @protected\n     */\n    onPacket(packet) {\n        super.emitReserved(\"packet\", packet);\n    }\n    /**\n     * Called upon close.\n     *\n     * @protected\n     */\n    onClose(details) {\n        this.readyState = \"closed\";\n        super.emitReserved(\"close\", details);\n    }\n    /**\n     * Pauses the transport, in order not to lose packets during an upgrade.\n     *\n     * @param onPause\n     */\n    pause(onPause) { }\n    createUri(schema, query = {}) {\n        return (schema +\n            \"://\" +\n            this._hostname() +\n            this._port() +\n            this.opts.path +\n            this._query(query));\n    }\n    _hostname() {\n        const hostname = this.opts.hostname;\n        return hostname.indexOf(\":\") === -1 ? hostname : \"[\" + hostname + \"]\";\n    }\n    _port() {\n        if (this.opts.port &&\n            ((this.opts.secure && Number(this.opts.port !== 443)) ||\n                (!this.opts.secure && Number(this.opts.port) !== 80))) {\n            return \":\" + this.opts.port;\n        }\n        else {\n            return \"\";\n        }\n    }\n    _query(query) {\n        const encodedQuery = encode(query);\n        return encodedQuery.length ? \"?\" + encodedQuery : \"\";\n    }\n}\n", "// imported from https://github.com/unshiftio/yeast\n'use strict';\nconst alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split(''), length = 64, map = {};\nlet seed = 0, i = 0, prev;\n/**\n * Return a string representing the specified number.\n *\n * @param {Number} num The number to convert.\n * @returns {String} The string representation of the number.\n * @api public\n */\nexport function encode(num) {\n    let encoded = '';\n    do {\n        encoded = alphabet[num % length] + encoded;\n        num = Math.floor(num / length);\n    } while (num > 0);\n    return encoded;\n}\n/**\n * Return the integer value specified by the given string.\n *\n * @param {String} str The string to convert.\n * @returns {Number} The integer value represented by the string.\n * @api public\n */\nexport function decode(str) {\n    let decoded = 0;\n    for (i = 0; i < str.length; i++) {\n        decoded = decoded * length + map[str.charAt(i)];\n    }\n    return decoded;\n}\n/**\n * Yeast: A tiny growing id generator.\n *\n * @returns {String} A unique id.\n * @api public\n */\nexport function yeast() {\n    const now = encode(+new Date());\n    if (now !== prev)\n        return seed = 0, prev = now;\n    return now + '.' + encode(seed++);\n}\n//\n// Map each character to its index.\n//\nfor (; i < length; i++)\n    map[alphabet[i]] = i;\n", "// imported from https://github.com/component/has-cors\nlet value = false;\ntry {\n    value = typeof XMLHttpRequest !== 'undefined' &&\n        'withCredentials' in new XMLHttpRequest();\n}\ncatch (err) {\n    // if XMLHttp support is disabled in IE then it will throw\n    // when trying to create\n}\nexport const hasCORS = value;\n", "// browser shim for xmlhttprequest module\nimport { hasCORS } from \"../contrib/has-cors.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nexport function XHR(opts) {\n    const xdomain = opts.xdomain;\n    // XMLHttpRequest can be disabled on IE\n    try {\n        if (\"undefined\" !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {\n            return new XMLHttpRequest();\n        }\n    }\n    catch (e) { }\n    if (!xdomain) {\n        try {\n            return new globalThis[[\"Active\"].concat(\"Object\").join(\"X\")](\"Microsoft.XMLHTTP\");\n        }\n        catch (e) { }\n    }\n}\nexport function createCookieJar() { }\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { encodePayload, decodePayload } from \"engine.io-parser\";\nimport { createCookieJar, XHR as XMLHttpRequest, } from \"./xmlhttprequest.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions, pick } from \"../util.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nfunction empty() { }\nconst hasXHR2 = (function () {\n    const xhr = new XMLHttpRequest({\n        xdomain: false,\n    });\n    return null != xhr.responseType;\n})();\nexport class Polling extends Transport {\n    /**\n     * XHR Polling constructor.\n     *\n     * @param {Object} opts\n     * @package\n     */\n    constructor(opts) {\n        super(opts);\n        this.polling = false;\n        if (typeof location !== \"undefined\") {\n            const isSSL = \"https:\" === location.protocol;\n            let port = location.port;\n            // some user agents have empty `location.port`\n            if (!port) {\n                port = isSSL ? \"443\" : \"80\";\n            }\n            this.xd =\n                (typeof location !== \"undefined\" &&\n                    opts.hostname !== location.hostname) ||\n                    port !== opts.port;\n        }\n        /**\n         * XHR supports binary\n         */\n        const forceBase64 = opts && opts.forceBase64;\n        this.supportsBinary = hasXHR2 && !forceBase64;\n        if (this.opts.withCredentials) {\n            this.cookieJar = createCookieJar();\n        }\n    }\n    get name() {\n        return \"polling\";\n    }\n    /**\n     * Opens the socket (triggers polling). We write a PING message to determine\n     * when the transport is open.\n     *\n     * @protected\n     */\n    doOpen() {\n        this.poll();\n    }\n    /**\n     * Pauses polling.\n     *\n     * @param {Function} onPause - callback upon buffers are flushed and transport is paused\n     * @package\n     */\n    pause(onPause) {\n        this.readyState = \"pausing\";\n        const pause = () => {\n            this.readyState = \"paused\";\n            onPause();\n        };\n        if (this.polling || !this.writable) {\n            let total = 0;\n            if (this.polling) {\n                total++;\n                this.once(\"pollComplete\", function () {\n                    --total || pause();\n                });\n            }\n            if (!this.writable) {\n                total++;\n                this.once(\"drain\", function () {\n                    --total || pause();\n                });\n            }\n        }\n        else {\n            pause();\n        }\n    }\n    /**\n     * Starts polling cycle.\n     *\n     * @private\n     */\n    poll() {\n        this.polling = true;\n        this.doPoll();\n        this.emitReserved(\"poll\");\n    }\n    /**\n     * Overloads onData to detect payloads.\n     *\n     * @protected\n     */\n    onData(data) {\n        const callback = (packet) => {\n            // if its the first message we consider the transport open\n            if (\"opening\" === this.readyState && packet.type === \"open\") {\n                this.onOpen();\n            }\n            // if its a close packet, we close the ongoing requests\n            if (\"close\" === packet.type) {\n                this.onClose({ description: \"transport closed by the server\" });\n                return false;\n            }\n            // otherwise bypass onData and handle the message\n            this.onPacket(packet);\n        };\n        // decode payload\n        decodePayload(data, this.socket.binaryType).forEach(callback);\n        // if an event did not trigger closing\n        if (\"closed\" !== this.readyState) {\n            // if we got data we're not polling\n            this.polling = false;\n            this.emitReserved(\"pollComplete\");\n            if (\"open\" === this.readyState) {\n                this.poll();\n            }\n            else {\n            }\n        }\n    }\n    /**\n     * For polling, send a close packet.\n     *\n     * @protected\n     */\n    doClose() {\n        const close = () => {\n            this.write([{ type: \"close\" }]);\n        };\n        if (\"open\" === this.readyState) {\n            close();\n        }\n        else {\n            // in case we're trying to close while\n            // handshaking is in progress (GH-164)\n            this.once(\"open\", close);\n        }\n    }\n    /**\n     * Writes a packets payload.\n     *\n     * @param {Array} packets - data packets\n     * @protected\n     */\n    write(packets) {\n        this.writable = false;\n        encodePayload(packets, (data) => {\n            this.doWrite(data, () => {\n                this.writable = true;\n                this.emitReserved(\"drain\");\n            });\n        });\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"https\" : \"http\";\n        const query = this.query || {};\n        // cache busting is forced\n        if (false !== this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        if (!this.supportsBinary && !query.sid) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Creates a request.\n     *\n     * @param {String} method\n     * @private\n     */\n    request(opts = {}) {\n        Object.assign(opts, { xd: this.xd, cookieJar: this.cookieJar }, this.opts);\n        return new Request(this.uri(), opts);\n    }\n    /**\n     * Sends data.\n     *\n     * @param {String} data to send.\n     * @param {Function} called upon flush.\n     * @private\n     */\n    doWrite(data, fn) {\n        const req = this.request({\n            method: \"POST\",\n            data: data,\n        });\n        req.on(\"success\", fn);\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr post error\", xhrStatus, context);\n        });\n    }\n    /**\n     * Starts a poll cycle.\n     *\n     * @private\n     */\n    doPoll() {\n        const req = this.request();\n        req.on(\"data\", this.onData.bind(this));\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr poll error\", xhrStatus, context);\n        });\n        this.pollXhr = req;\n    }\n}\nexport class Request extends Emitter {\n    /**\n     * Request constructor\n     *\n     * @param {Object} options\n     * @package\n     */\n    constructor(uri, opts) {\n        super();\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.method = opts.method || \"GET\";\n        this.uri = uri;\n        this.data = undefined !== opts.data ? opts.data : null;\n        this.create();\n    }\n    /**\n     * Creates the XHR object and sends the request.\n     *\n     * @private\n     */\n    create() {\n        var _a;\n        const opts = pick(this.opts, \"agent\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"autoUnref\");\n        opts.xdomain = !!this.opts.xd;\n        const xhr = (this.xhr = new XMLHttpRequest(opts));\n        try {\n            xhr.open(this.method, this.uri, true);\n            try {\n                if (this.opts.extraHeaders) {\n                    xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);\n                    for (let i in this.opts.extraHeaders) {\n                        if (this.opts.extraHeaders.hasOwnProperty(i)) {\n                            xhr.setRequestHeader(i, this.opts.extraHeaders[i]);\n                        }\n                    }\n                }\n            }\n            catch (e) { }\n            if (\"POST\" === this.method) {\n                try {\n                    xhr.setRequestHeader(\"Content-type\", \"text/plain;charset=UTF-8\");\n                }\n                catch (e) { }\n            }\n            try {\n                xhr.setRequestHeader(\"Accept\", \"*/*\");\n            }\n            catch (e) { }\n            (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.addCookies(xhr);\n            // ie6 check\n            if (\"withCredentials\" in xhr) {\n                xhr.withCredentials = this.opts.withCredentials;\n            }\n            if (this.opts.requestTimeout) {\n                xhr.timeout = this.opts.requestTimeout;\n            }\n            xhr.onreadystatechange = () => {\n                var _a;\n                if (xhr.readyState === 3) {\n                    (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.parseCookies(xhr);\n                }\n                if (4 !== xhr.readyState)\n                    return;\n                if (200 === xhr.status || 1223 === xhr.status) {\n                    this.onLoad();\n                }\n                else {\n                    // make sure the `error` event handler that's user-set\n                    // does not throw in the same tick and gets caught here\n                    this.setTimeoutFn(() => {\n                        this.onError(typeof xhr.status === \"number\" ? xhr.status : 0);\n                    }, 0);\n                }\n            };\n            xhr.send(this.data);\n        }\n        catch (e) {\n            // Need to defer since .create() is called directly from the constructor\n            // and thus the 'error' event can only be only bound *after* this exception\n            // occurs.  Therefore, also, we cannot throw here at all.\n            this.setTimeoutFn(() => {\n                this.onError(e);\n            }, 0);\n            return;\n        }\n        if (typeof document !== \"undefined\") {\n            this.index = Request.requestsCount++;\n            Request.requests[this.index] = this;\n        }\n    }\n    /**\n     * Called upon error.\n     *\n     * @private\n     */\n    onError(err) {\n        this.emitReserved(\"error\", err, this.xhr);\n        this.cleanup(true);\n    }\n    /**\n     * Cleans up house.\n     *\n     * @private\n     */\n    cleanup(fromError) {\n        if (\"undefined\" === typeof this.xhr || null === this.xhr) {\n            return;\n        }\n        this.xhr.onreadystatechange = empty;\n        if (fromError) {\n            try {\n                this.xhr.abort();\n            }\n            catch (e) { }\n        }\n        if (typeof document !== \"undefined\") {\n            delete Request.requests[this.index];\n        }\n        this.xhr = null;\n    }\n    /**\n     * Called upon load.\n     *\n     * @private\n     */\n    onLoad() {\n        const data = this.xhr.responseText;\n        if (data !== null) {\n            this.emitReserved(\"data\", data);\n            this.emitReserved(\"success\");\n            this.cleanup();\n        }\n    }\n    /**\n     * Aborts the request.\n     *\n     * @package\n     */\n    abort() {\n        this.cleanup();\n    }\n}\nRequest.requestsCount = 0;\nRequest.requests = {};\n/**\n * Aborts pending requests when unloading the window. This is needed to prevent\n * memory leaks (e.g. when using IE) and to ensure that no spurious error is\n * emitted.\n */\nif (typeof document !== \"undefined\") {\n    // @ts-ignore\n    if (typeof attachEvent === \"function\") {\n        // @ts-ignore\n        attachEvent(\"onunload\", unloadHandler);\n    }\n    else if (typeof addEventListener === \"function\") {\n        const terminationEvent = \"onpagehide\" in globalThis ? \"pagehide\" : \"unload\";\n        addEventListener(terminationEvent, unloadHandler, false);\n    }\n}\nfunction unloadHandler() {\n    for (let i in Request.requests) {\n        if (Request.requests.hasOwnProperty(i)) {\n            Request.requests[i].abort();\n        }\n    }\n}\n", "import { globalThisShim as globalThis } from \"../globalThis.js\";\nexport const nextTick = (() => {\n    const isPromiseAvailable = typeof Promise === \"function\" && typeof Promise.resolve === \"function\";\n    if (isPromiseAvailable) {\n        return (cb) => Promise.resolve().then(cb);\n    }\n    else {\n        return (cb, setTimeoutFn) => setTimeoutFn(cb, 0);\n    }\n})();\nexport const WebSocket = globalThis.WebSocket || globalThis.MozWebSocket;\nexport const usingBrowserWebSocket = true;\nexport const defaultBinaryType = \"arraybuffer\";\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { pick } from \"../util.js\";\nimport { nextTick, usingBrowserWebSocket, WebSocket, } from \"./websocket-constructor.js\";\nimport { encodePacket } from \"engine.io-parser\";\n// detect ReactNative environment\nconst isReactNative = typeof navigator !== \"undefined\" &&\n    typeof navigator.product === \"string\" &&\n    navigator.product.toLowerCase() === \"reactnative\";\nexport class WS extends Transport {\n    /**\n     * WebSocket transport constructor.\n     *\n     * @param {Object} opts - connection options\n     * @protected\n     */\n    constructor(opts) {\n        super(opts);\n        this.supportsBinary = !opts.forceBase64;\n    }\n    get name() {\n        return \"websocket\";\n    }\n    doOpen() {\n        if (!this.check()) {\n            // let probe timeout\n            return;\n        }\n        const uri = this.uri();\n        const protocols = this.opts.protocols;\n        // React Native only supports the 'headers' option, and will print a warning if anything else is passed\n        const opts = isReactNative\n            ? {}\n            : pick(this.opts, \"agent\", \"perMessageDeflate\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"localAddress\", \"protocolVersion\", \"origin\", \"maxPayload\", \"family\", \"checkServerIdentity\");\n        if (this.opts.extraHeaders) {\n            opts.headers = this.opts.extraHeaders;\n        }\n        try {\n            this.ws =\n                usingBrowserWebSocket && !isReactNative\n                    ? protocols\n                        ? new WebSocket(uri, protocols)\n                        : new WebSocket(uri)\n                    : new WebSocket(uri, protocols, opts);\n        }\n        catch (err) {\n            return this.emitReserved(\"error\", err);\n        }\n        this.ws.binaryType = this.socket.binaryType;\n        this.addEventListeners();\n    }\n    /**\n     * Adds event listeners to the socket\n     *\n     * @private\n     */\n    addEventListeners() {\n        this.ws.onopen = () => {\n            if (this.opts.autoUnref) {\n                this.ws._socket.unref();\n            }\n            this.onOpen();\n        };\n        this.ws.onclose = (closeEvent) => this.onClose({\n            description: \"websocket connection closed\",\n            context: closeEvent,\n        });\n        this.ws.onmessage = (ev) => this.onData(ev.data);\n        this.ws.onerror = (e) => this.onError(\"websocket error\", e);\n    }\n    write(packets) {\n        this.writable = false;\n        // encodePacket efficient as it uses WS framing\n        // no need for encodePayload\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            encodePacket(packet, this.supportsBinary, (data) => {\n                // always create a new object (GH-437)\n                const opts = {};\n                if (!usingBrowserWebSocket) {\n                    if (packet.options) {\n                        opts.compress = packet.options.compress;\n                    }\n                    if (this.opts.perMessageDeflate) {\n                        const len = \n                        // @ts-ignore\n                        \"string\" === typeof data ? Buffer.byteLength(data) : data.length;\n                        if (len < this.opts.perMessageDeflate.threshold) {\n                            opts.compress = false;\n                        }\n                    }\n                }\n                // Sometimes the websocket has already been closed but the browser didn't\n                // have a chance of informing us about it yet, in that case send will\n                // throw an error\n                try {\n                    if (usingBrowserWebSocket) {\n                        // TypeError is thrown when passing the second argument on Safari\n                        this.ws.send(data);\n                    }\n                    else {\n                        this.ws.send(data, opts);\n                    }\n                }\n                catch (e) {\n                }\n                if (lastPacket) {\n                    // fake drain\n                    // defer to next tick to allow Socket to clear writeBuffer\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        if (typeof this.ws !== \"undefined\") {\n            this.ws.close();\n            this.ws = null;\n        }\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"wss\" : \"ws\";\n        const query = this.query || {};\n        // append timestamp to URI\n        if (this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        // communicate binary support capabilities\n        if (!this.supportsBinary) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Feature detection for WebSocket.\n     *\n     * @return {Boolean} whether this transport is available.\n     * @private\n     */\n    check() {\n        return !!WebSocket;\n    }\n}\n", "import { Transport } from \"../transport.js\";\nimport { nextTick } from \"./websocket-constructor.js\";\nimport { createPacketDecoderStream, createPacketEncoderStream, } from \"engine.io-parser\";\nexport class WT extends Transport {\n    get name() {\n        return \"webtransport\";\n    }\n    doOpen() {\n        // @ts-ignore\n        if (typeof WebTransport !== \"function\") {\n            return;\n        }\n        // @ts-ignore\n        this.transport = new WebTransport(this.createUri(\"https\"), this.opts.transportOptions[this.name]);\n        this.transport.closed\n            .then(() => {\n            this.onClose();\n        })\n            .catch((err) => {\n            this.onError(\"webtransport error\", err);\n        });\n        // note: we could have used async/await, but that would require some additional polyfills\n        this.transport.ready.then(() => {\n            this.transport.createBidirectionalStream().then((stream) => {\n                const decoderStream = createPacketDecoderStream(Number.MAX_SAFE_INTEGER, this.socket.binaryType);\n                const reader = stream.readable.pipeThrough(decoderStream).getReader();\n                const encoderStream = createPacketEncoderStream();\n                encoderStream.readable.pipeTo(stream.writable);\n                this.writer = encoderStream.writable.getWriter();\n                const read = () => {\n                    reader\n                        .read()\n                        .then(({ done, value }) => {\n                        if (done) {\n                            return;\n                        }\n                        this.onPacket(value);\n                        read();\n                    })\n                        .catch((err) => {\n                    });\n                };\n                read();\n                const packet = { type: \"open\" };\n                if (this.query.sid) {\n                    packet.data = `{\"sid\":\"${this.query.sid}\"}`;\n                }\n                this.writer.write(packet).then(() => this.onOpen());\n            });\n        });\n    }\n    write(packets) {\n        this.writable = false;\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            this.writer.write(packet).then(() => {\n                if (lastPacket) {\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        var _a;\n        (_a = this.transport) === null || _a === void 0 ? void 0 : _a.close();\n    }\n}\n", "import { Polling } from \"./polling.js\";\nimport { WS } from \"./websocket.js\";\nimport { WT } from \"./webtransport.js\";\nexport const transports = {\n    websocket: WS,\n    webtransport: WT,\n    polling: Polling,\n};\n", "// imported from https://github.com/galkn/parseuri\n/**\n * Parses a URI\n *\n * Note: we could also have used the built-in URL object, but it isn't supported on all platforms.\n *\n * See:\n * - https://developer.mozilla.org/en-US/docs/Web/API/URL\n * - https://caniuse.com/url\n * - https://www.rfc-editor.org/rfc/rfc3986#appendix-B\n *\n * History of the parse() method:\n * - first commit: https://github.com/socketio/socket.io-client/commit/4ee1d5d94b3906a9c052b459f1a818b15f38f91c\n * - export into its own module: https://github.com/socketio/engine.io-client/commit/de2c561e4564efeb78f1bdb1ba39ef81b2822cb3\n * - reimport: https://github.com/socketio/engine.io-client/commit/df32277c3f6d622eec5ed09f493cae3f3391d242\n *\n * @author Steven Levithan <stevenlevithan.com> (MIT license)\n * @api private\n */\nconst re = /^(?:(?![^:@\\/?#]+:[^:@\\/]*@)(http|https|ws|wss):\\/\\/)?((?:(([^:@\\/?#]*)(?::([^:@\\/?#]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\\/?#]*)(?::(\\d*))?)(((\\/(?:[^?#](?![^?#\\/]*\\.[^?#\\/.]+(?:[?#]|$)))*\\/?)?([^?#\\/]*))(?:\\?([^#]*))?(?:#(.*))?)/;\nconst parts = [\n    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'\n];\nexport function parse(str) {\n    if (str.length > 2000) {\n        throw \"URI too long\";\n    }\n    const src = str, b = str.indexOf('['), e = str.indexOf(']');\n    if (b != -1 && e != -1) {\n        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);\n    }\n    let m = re.exec(str || ''), uri = {}, i = 14;\n    while (i--) {\n        uri[parts[i]] = m[i] || '';\n    }\n    if (b != -1 && e != -1) {\n        uri.source = src;\n        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');\n        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');\n        uri.ipv6uri = true;\n    }\n    uri.pathNames = pathNames(uri, uri['path']);\n    uri.queryKey = queryKey(uri, uri['query']);\n    return uri;\n}\nfunction pathNames(obj, path) {\n    const regx = /\\/{2,9}/g, names = path.replace(regx, \"/\").split(\"/\");\n    if (path.slice(0, 1) == '/' || path.length === 0) {\n        names.splice(0, 1);\n    }\n    if (path.slice(-1) == '/') {\n        names.splice(names.length - 1, 1);\n    }\n    return names;\n}\nfunction queryKey(uri, query) {\n    const data = {};\n    query.replace(/(?:^|&)([^&=]*)=?([^&]*)/g, function ($0, $1, $2) {\n        if ($1) {\n            data[$1] = $2;\n        }\n    });\n    return data;\n}\n", "import { transports } from \"./transports/index.js\";\nimport { installTimerFunctions, byteLength } from \"./util.js\";\nimport { decode } from \"./contrib/parseqs.js\";\nimport { parse } from \"./contrib/parseuri.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { protocol } from \"engine.io-parser\";\nimport { defaultBinaryType } from \"./transports/websocket-constructor.js\";\nexport class Socket extends Emitter {\n    /**\n     * Socket constructor.\n     *\n     * @param {String|Object} uri - uri or options\n     * @param {Object} opts - options\n     */\n    constructor(uri, opts = {}) {\n        super();\n        this.binaryType = defaultBinaryType;\n        this.writeBuffer = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = null;\n        }\n        if (uri) {\n            uri = parse(uri);\n            opts.hostname = uri.host;\n            opts.secure = uri.protocol === \"https\" || uri.protocol === \"wss\";\n            opts.port = uri.port;\n            if (uri.query)\n                opts.query = uri.query;\n        }\n        else if (opts.host) {\n            opts.hostname = parse(opts.host).host;\n        }\n        installTimerFunctions(this, opts);\n        this.secure =\n            null != opts.secure\n                ? opts.secure\n                : typeof location !== \"undefined\" && \"https:\" === location.protocol;\n        if (opts.hostname && !opts.port) {\n            // if no port is specified manually, use the protocol default\n            opts.port = this.secure ? \"443\" : \"80\";\n        }\n        this.hostname =\n            opts.hostname ||\n                (typeof location !== \"undefined\" ? location.hostname : \"localhost\");\n        this.port =\n            opts.port ||\n                (typeof location !== \"undefined\" && location.port\n                    ? location.port\n                    : this.secure\n                        ? \"443\"\n                        : \"80\");\n        this.transports = opts.transports || [\n            \"polling\",\n            \"websocket\",\n            \"webtransport\",\n        ];\n        this.writeBuffer = [];\n        this.prevBufferLen = 0;\n        this.opts = Object.assign({\n            path: \"/engine.io\",\n            agent: false,\n            withCredentials: false,\n            upgrade: true,\n            timestampParam: \"t\",\n            rememberUpgrade: false,\n            addTrailingSlash: true,\n            rejectUnauthorized: true,\n            perMessageDeflate: {\n                threshold: 1024,\n            },\n            transportOptions: {},\n            closeOnBeforeunload: false,\n        }, opts);\n        this.opts.path =\n            this.opts.path.replace(/\\/$/, \"\") +\n                (this.opts.addTrailingSlash ? \"/\" : \"\");\n        if (typeof this.opts.query === \"string\") {\n            this.opts.query = decode(this.opts.query);\n        }\n        // set on handshake\n        this.id = null;\n        this.upgrades = null;\n        this.pingInterval = null;\n        this.pingTimeout = null;\n        // set on heartbeat\n        this.pingTimeoutTimer = null;\n        if (typeof addEventListener === \"function\") {\n            if (this.opts.closeOnBeforeunload) {\n                // Firefox closes the connection when the \"beforeunload\" event is emitted but not Chrome. This event listener\n                // ensures every browser behaves the same (no \"disconnect\" event at the Socket.IO level when the page is\n                // closed/reloaded)\n                this.beforeunloadEventListener = () => {\n                    if (this.transport) {\n                        // silently close the transport\n                        this.transport.removeAllListeners();\n                        this.transport.close();\n                    }\n                };\n                addEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n            }\n            if (this.hostname !== \"localhost\") {\n                this.offlineEventListener = () => {\n                    this.onClose(\"transport close\", {\n                        description: \"network connection lost\",\n                    });\n                };\n                addEventListener(\"offline\", this.offlineEventListener, false);\n            }\n        }\n        this.open();\n    }\n    /**\n     * Creates transport of the given type.\n     *\n     * @param {String} name - transport name\n     * @return {Transport}\n     * @private\n     */\n    createTransport(name) {\n        const query = Object.assign({}, this.opts.query);\n        // append engine.io protocol identifier\n        query.EIO = protocol;\n        // transport name\n        query.transport = name;\n        // session id if we already have one\n        if (this.id)\n            query.sid = this.id;\n        const opts = Object.assign({}, this.opts, {\n            query,\n            socket: this,\n            hostname: this.hostname,\n            secure: this.secure,\n            port: this.port,\n        }, this.opts.transportOptions[name]);\n        return new transports[name](opts);\n    }\n    /**\n     * Initializes transport to use and starts probe.\n     *\n     * @private\n     */\n    open() {\n        let transport;\n        if (this.opts.rememberUpgrade &&\n            Socket.priorWebsocketSuccess &&\n            this.transports.indexOf(\"websocket\") !== -1) {\n            transport = \"websocket\";\n        }\n        else if (0 === this.transports.length) {\n            // Emit error on next tick so it can be listened to\n            this.setTimeoutFn(() => {\n                this.emitReserved(\"error\", \"No transports available\");\n            }, 0);\n            return;\n        }\n        else {\n            transport = this.transports[0];\n        }\n        this.readyState = \"opening\";\n        // Retry with the next transport if the transport is disabled (jsonp: false)\n        try {\n            transport = this.createTransport(transport);\n        }\n        catch (e) {\n            this.transports.shift();\n            this.open();\n            return;\n        }\n        transport.open();\n        this.setTransport(transport);\n    }\n    /**\n     * Sets the current transport. Disables the existing one (if any).\n     *\n     * @private\n     */\n    setTransport(transport) {\n        if (this.transport) {\n            this.transport.removeAllListeners();\n        }\n        // set up transport\n        this.transport = transport;\n        // set up transport listeners\n        transport\n            .on(\"drain\", this.onDrain.bind(this))\n            .on(\"packet\", this.onPacket.bind(this))\n            .on(\"error\", this.onError.bind(this))\n            .on(\"close\", (reason) => this.onClose(\"transport close\", reason));\n    }\n    /**\n     * Probes a transport.\n     *\n     * @param {String} name - transport name\n     * @private\n     */\n    probe(name) {\n        let transport = this.createTransport(name);\n        let failed = false;\n        Socket.priorWebsocketSuccess = false;\n        const onTransportOpen = () => {\n            if (failed)\n                return;\n            transport.send([{ type: \"ping\", data: \"probe\" }]);\n            transport.once(\"packet\", (msg) => {\n                if (failed)\n                    return;\n                if (\"pong\" === msg.type && \"probe\" === msg.data) {\n                    this.upgrading = true;\n                    this.emitReserved(\"upgrading\", transport);\n                    if (!transport)\n                        return;\n                    Socket.priorWebsocketSuccess = \"websocket\" === transport.name;\n                    this.transport.pause(() => {\n                        if (failed)\n                            return;\n                        if (\"closed\" === this.readyState)\n                            return;\n                        cleanup();\n                        this.setTransport(transport);\n                        transport.send([{ type: \"upgrade\" }]);\n                        this.emitReserved(\"upgrade\", transport);\n                        transport = null;\n                        this.upgrading = false;\n                        this.flush();\n                    });\n                }\n                else {\n                    const err = new Error(\"probe error\");\n                    // @ts-ignore\n                    err.transport = transport.name;\n                    this.emitReserved(\"upgradeError\", err);\n                }\n            });\n        };\n        function freezeTransport() {\n            if (failed)\n                return;\n            // Any callback called by transport should be ignored since now\n            failed = true;\n            cleanup();\n            transport.close();\n            transport = null;\n        }\n        // Handle any error that happens while probing\n        const onerror = (err) => {\n            const error = new Error(\"probe error: \" + err);\n            // @ts-ignore\n            error.transport = transport.name;\n            freezeTransport();\n            this.emitReserved(\"upgradeError\", error);\n        };\n        function onTransportClose() {\n            onerror(\"transport closed\");\n        }\n        // When the socket is closed while we're probing\n        function onclose() {\n            onerror(\"socket closed\");\n        }\n        // When the socket is upgraded while we're probing\n        function onupgrade(to) {\n            if (transport && to.name !== transport.name) {\n                freezeTransport();\n            }\n        }\n        // Remove all listeners on the transport and on self\n        const cleanup = () => {\n            transport.removeListener(\"open\", onTransportOpen);\n            transport.removeListener(\"error\", onerror);\n            transport.removeListener(\"close\", onTransportClose);\n            this.off(\"close\", onclose);\n            this.off(\"upgrading\", onupgrade);\n        };\n        transport.once(\"open\", onTransportOpen);\n        transport.once(\"error\", onerror);\n        transport.once(\"close\", onTransportClose);\n        this.once(\"close\", onclose);\n        this.once(\"upgrading\", onupgrade);\n        if (this.upgrades.indexOf(\"webtransport\") !== -1 &&\n            name !== \"webtransport\") {\n            // favor WebTransport\n            this.setTimeoutFn(() => {\n                if (!failed) {\n                    transport.open();\n                }\n            }, 200);\n        }\n        else {\n            transport.open();\n        }\n    }\n    /**\n     * Called when connection is deemed open.\n     *\n     * @private\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        Socket.priorWebsocketSuccess = \"websocket\" === this.transport.name;\n        this.emitReserved(\"open\");\n        this.flush();\n        // we check for `readyState` in case an `open`\n        // listener already closed the socket\n        if (\"open\" === this.readyState && this.opts.upgrade) {\n            let i = 0;\n            const l = this.upgrades.length;\n            for (; i < l; i++) {\n                this.probe(this.upgrades[i]);\n            }\n        }\n    }\n    /**\n     * Handles a packet.\n     *\n     * @private\n     */\n    onPacket(packet) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            this.emitReserved(\"packet\", packet);\n            // Socket is live - any packet counts\n            this.emitReserved(\"heartbeat\");\n            this.resetPingTimeout();\n            switch (packet.type) {\n                case \"open\":\n                    this.onHandshake(JSON.parse(packet.data));\n                    break;\n                case \"ping\":\n                    this.sendPacket(\"pong\");\n                    this.emitReserved(\"ping\");\n                    this.emitReserved(\"pong\");\n                    break;\n                case \"error\":\n                    const err = new Error(\"server error\");\n                    // @ts-ignore\n                    err.code = packet.data;\n                    this.onError(err);\n                    break;\n                case \"message\":\n                    this.emitReserved(\"data\", packet.data);\n                    this.emitReserved(\"message\", packet.data);\n                    break;\n            }\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon handshake completion.\n     *\n     * @param {Object} data - handshake obj\n     * @private\n     */\n    onHandshake(data) {\n        this.emitReserved(\"handshake\", data);\n        this.id = data.sid;\n        this.transport.query.sid = data.sid;\n        this.upgrades = this.filterUpgrades(data.upgrades);\n        this.pingInterval = data.pingInterval;\n        this.pingTimeout = data.pingTimeout;\n        this.maxPayload = data.maxPayload;\n        this.onOpen();\n        // In case open handler closes socket\n        if (\"closed\" === this.readyState)\n            return;\n        this.resetPingTimeout();\n    }\n    /**\n     * Sets and resets ping timeout timer based on server pings.\n     *\n     * @private\n     */\n    resetPingTimeout() {\n        this.clearTimeoutFn(this.pingTimeoutTimer);\n        this.pingTimeoutTimer = this.setTimeoutFn(() => {\n            this.onClose(\"ping timeout\");\n        }, this.pingInterval + this.pingTimeout);\n        if (this.opts.autoUnref) {\n            this.pingTimeoutTimer.unref();\n        }\n    }\n    /**\n     * Called on `drain` event\n     *\n     * @private\n     */\n    onDrain() {\n        this.writeBuffer.splice(0, this.prevBufferLen);\n        // setting prevBufferLen = 0 is very important\n        // for example, when upgrading, upgrade packet is sent over,\n        // and a nonzero prevBufferLen could cause problems on `drain`\n        this.prevBufferLen = 0;\n        if (0 === this.writeBuffer.length) {\n            this.emitReserved(\"drain\");\n        }\n        else {\n            this.flush();\n        }\n    }\n    /**\n     * Flush write buffers.\n     *\n     * @private\n     */\n    flush() {\n        if (\"closed\" !== this.readyState &&\n            this.transport.writable &&\n            !this.upgrading &&\n            this.writeBuffer.length) {\n            const packets = this.getWritablePackets();\n            this.transport.send(packets);\n            // keep track of current length of writeBuffer\n            // splice writeBuffer and callbackBuffer on `drain`\n            this.prevBufferLen = packets.length;\n            this.emitReserved(\"flush\");\n        }\n    }\n    /**\n     * Ensure the encoded size of the writeBuffer is below the maxPayload value sent by the server (only for HTTP\n     * long-polling)\n     *\n     * @private\n     */\n    getWritablePackets() {\n        const shouldCheckPayloadSize = this.maxPayload &&\n            this.transport.name === \"polling\" &&\n            this.writeBuffer.length > 1;\n        if (!shouldCheckPayloadSize) {\n            return this.writeBuffer;\n        }\n        let payloadSize = 1; // first packet type\n        for (let i = 0; i < this.writeBuffer.length; i++) {\n            const data = this.writeBuffer[i].data;\n            if (data) {\n                payloadSize += byteLength(data);\n            }\n            if (i > 0 && payloadSize > this.maxPayload) {\n                return this.writeBuffer.slice(0, i);\n            }\n            payloadSize += 2; // separator + packet type\n        }\n        return this.writeBuffer;\n    }\n    /**\n     * Sends a message.\n     *\n     * @param {String} msg - message.\n     * @param {Object} options.\n     * @param {Function} callback function.\n     * @return {Socket} for chaining.\n     */\n    write(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    send(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param {String} type: packet type.\n     * @param {String} data.\n     * @param {Object} options.\n     * @param {Function} fn - callback function.\n     * @private\n     */\n    sendPacket(type, data, options, fn) {\n        if (\"function\" === typeof data) {\n            fn = data;\n            data = undefined;\n        }\n        if (\"function\" === typeof options) {\n            fn = options;\n            options = null;\n        }\n        if (\"closing\" === this.readyState || \"closed\" === this.readyState) {\n            return;\n        }\n        options = options || {};\n        options.compress = false !== options.compress;\n        const packet = {\n            type: type,\n            data: data,\n            options: options,\n        };\n        this.emitReserved(\"packetCreate\", packet);\n        this.writeBuffer.push(packet);\n        if (fn)\n            this.once(\"flush\", fn);\n        this.flush();\n    }\n    /**\n     * Closes the connection.\n     */\n    close() {\n        const close = () => {\n            this.onClose(\"forced close\");\n            this.transport.close();\n        };\n        const cleanupAndClose = () => {\n            this.off(\"upgrade\", cleanupAndClose);\n            this.off(\"upgradeError\", cleanupAndClose);\n            close();\n        };\n        const waitForUpgrade = () => {\n            // wait for upgrade to finish since we can't send packets while pausing a transport\n            this.once(\"upgrade\", cleanupAndClose);\n            this.once(\"upgradeError\", cleanupAndClose);\n        };\n        if (\"opening\" === this.readyState || \"open\" === this.readyState) {\n            this.readyState = \"closing\";\n            if (this.writeBuffer.length) {\n                this.once(\"drain\", () => {\n                    if (this.upgrading) {\n                        waitForUpgrade();\n                    }\n                    else {\n                        close();\n                    }\n                });\n            }\n            else if (this.upgrading) {\n                waitForUpgrade();\n            }\n            else {\n                close();\n            }\n        }\n        return this;\n    }\n    /**\n     * Called upon transport error\n     *\n     * @private\n     */\n    onError(err) {\n        Socket.priorWebsocketSuccess = false;\n        this.emitReserved(\"error\", err);\n        this.onClose(\"transport error\", err);\n    }\n    /**\n     * Called upon transport close.\n     *\n     * @private\n     */\n    onClose(reason, description) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            // clear timers\n            this.clearTimeoutFn(this.pingTimeoutTimer);\n            // stop event from firing again for transport\n            this.transport.removeAllListeners(\"close\");\n            // ensure transport won't stay open\n            this.transport.close();\n            // ignore further transport communication\n            this.transport.removeAllListeners();\n            if (typeof removeEventListener === \"function\") {\n                removeEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n                removeEventListener(\"offline\", this.offlineEventListener, false);\n            }\n            // set ready state\n            this.readyState = \"closed\";\n            // clear session id\n            this.id = null;\n            // emit close event\n            this.emitReserved(\"close\", reason, description);\n            // clean buffers after, so users can still\n            // grab the buffers on `close` event\n            this.writeBuffer = [];\n            this.prevBufferLen = 0;\n        }\n    }\n    /**\n     * Filters upgrades, returning only those matching client transports.\n     *\n     * @param {Array} upgrades - server upgrades\n     * @private\n     */\n    filterUpgrades(upgrades) {\n        const filteredUpgrades = [];\n        let i = 0;\n        const j = upgrades.length;\n        for (; i < j; i++) {\n            if (~this.transports.indexOf(upgrades[i]))\n                filteredUpgrades.push(upgrades[i]);\n        }\n        return filteredUpgrades;\n    }\n}\nSocket.protocol = protocol;\n", "import { Socket } from \"./socket.js\";\nexport { Socket };\nexport const protocol = Socket.protocol;\nexport { Transport, TransportError } from \"./transport.js\";\nexport { transports } from \"./transports/index.js\";\nexport { installTimerFunctions } from \"./util.js\";\nexport { parse } from \"./contrib/parseuri.js\";\nexport { nextTick } from \"./transports/websocket-constructor.js\";\n", "import { parse } from \"engine.io-client\";\n/**\n * URL parser.\n *\n * @param uri - url\n * @param path - the request path of the connection\n * @param loc - An object meant to mimic window.location.\n *        Defaults to window.location.\n * @public\n */\nexport function url(uri, path = \"\", loc) {\n    let obj = uri;\n    // default to window.location\n    loc = loc || (typeof location !== \"undefined\" && location);\n    if (null == uri)\n        uri = loc.protocol + \"//\" + loc.host;\n    // relative path support\n    if (typeof uri === \"string\") {\n        if (\"/\" === uri.charAt(0)) {\n            if (\"/\" === uri.charAt(1)) {\n                uri = loc.protocol + uri;\n            }\n            else {\n                uri = loc.host + uri;\n            }\n        }\n        if (!/^(https?|wss?):\\/\\//.test(uri)) {\n            if (\"undefined\" !== typeof loc) {\n                uri = loc.protocol + \"//\" + uri;\n            }\n            else {\n                uri = \"https://\" + uri;\n            }\n        }\n        // parse\n        obj = parse(uri);\n    }\n    // make sure we treat `localhost:80` and `localhost` equally\n    if (!obj.port) {\n        if (/^(http|ws)$/.test(obj.protocol)) {\n            obj.port = \"80\";\n        }\n        else if (/^(http|ws)s$/.test(obj.protocol)) {\n            obj.port = \"443\";\n        }\n    }\n    obj.path = obj.path || \"/\";\n    const ipv6 = obj.host.indexOf(\":\") !== -1;\n    const host = ipv6 ? \"[\" + obj.host + \"]\" : obj.host;\n    // define unique id\n    obj.id = obj.protocol + \"://\" + host + \":\" + obj.port + path;\n    // define href\n    obj.href =\n        obj.protocol +\n            \"://\" +\n            host +\n            (loc && loc.port === obj.port ? \"\" : \":\" + obj.port);\n    return obj;\n}\n", "import { Emitter } from \"@socket.io/component-emitter\";\nimport { deconstructPacket, reconstructPacket } from \"./binary.js\";\nimport { isBinary, hasBinary } from \"./is-binary.js\";\n/**\n * These strings must not be used as event names, as they have a special meaning.\n */\nconst RESERVED_EVENTS = [\n    \"connect\",\n    \"connect_error\",\n    \"disconnect\",\n    \"disconnecting\",\n    \"newListener\",\n    \"removeListener\", // used by the Node.js EventEmitter\n];\n/**\n * Protocol version.\n *\n * @public\n */\nexport const protocol = 5;\nexport var PacketType;\n(function (PacketType) {\n    PacketType[PacketType[\"CONNECT\"] = 0] = \"CONNECT\";\n    PacketType[PacketType[\"DISCONNECT\"] = 1] = \"DISCONNECT\";\n    PacketType[PacketType[\"EVENT\"] = 2] = \"EVENT\";\n    PacketType[PacketType[\"ACK\"] = 3] = \"ACK\";\n    PacketType[PacketType[\"CONNECT_ERROR\"] = 4] = \"CONNECT_ERROR\";\n    PacketType[PacketType[\"BINARY_EVENT\"] = 5] = \"BINARY_EVENT\";\n    PacketType[PacketType[\"BINARY_ACK\"] = 6] = \"BINARY_ACK\";\n})(PacketType || (PacketType = {}));\n/**\n * A socket.io Encoder instance\n */\nexport class Encoder {\n    /**\n     * Encoder constructor\n     *\n     * @param {function} replacer - custom replacer to pass down to JSON.parse\n     */\n    constructor(replacer) {\n        this.replacer = replacer;\n    }\n    /**\n     * Encode a packet as a single string if non-binary, or as a\n     * buffer sequence, depending on packet type.\n     *\n     * @param {Object} obj - packet object\n     */\n    encode(obj) {\n        if (obj.type === PacketType.EVENT || obj.type === PacketType.ACK) {\n            if (hasBinary(obj)) {\n                return this.encodeAsBinary({\n                    type: obj.type === PacketType.EVENT\n                        ? PacketType.BINARY_EVENT\n                        : PacketType.BINARY_ACK,\n                    nsp: obj.nsp,\n                    data: obj.data,\n                    id: obj.id,\n                });\n            }\n        }\n        return [this.encodeAsString(obj)];\n    }\n    /**\n     * Encode packet as string.\n     */\n    encodeAsString(obj) {\n        // first is type\n        let str = \"\" + obj.type;\n        // attachments if we have them\n        if (obj.type === PacketType.BINARY_EVENT ||\n            obj.type === PacketType.BINARY_ACK) {\n            str += obj.attachments + \"-\";\n        }\n        // if we have a namespace other than `/`\n        // we append it followed by a comma `,`\n        if (obj.nsp && \"/\" !== obj.nsp) {\n            str += obj.nsp + \",\";\n        }\n        // immediately followed by the id\n        if (null != obj.id) {\n            str += obj.id;\n        }\n        // json data\n        if (null != obj.data) {\n            str += JSON.stringify(obj.data, this.replacer);\n        }\n        return str;\n    }\n    /**\n     * Encode packet as 'buffer sequence' by removing blobs, and\n     * deconstructing packet into object with placeholders and\n     * a list of buffers.\n     */\n    encodeAsBinary(obj) {\n        const deconstruction = deconstructPacket(obj);\n        const pack = this.encodeAsString(deconstruction.packet);\n        const buffers = deconstruction.buffers;\n        buffers.unshift(pack); // add packet info to beginning of data list\n        return buffers; // write all the buffers\n    }\n}\n// see https://stackoverflow.com/questions/8511281/check-if-a-value-is-an-object-in-javascript\nfunction isObject(value) {\n    return Object.prototype.toString.call(value) === \"[object Object]\";\n}\n/**\n * A socket.io Decoder instance\n *\n * @return {Object} decoder\n */\nexport class Decoder extends Emitter {\n    /**\n     * Decoder constructor\n     *\n     * @param {function} reviver - custom reviver to pass down to JSON.stringify\n     */\n    constructor(reviver) {\n        super();\n        this.reviver = reviver;\n    }\n    /**\n     * Decodes an encoded packet string into packet JSON.\n     *\n     * @param {String} obj - encoded packet\n     */\n    add(obj) {\n        let packet;\n        if (typeof obj === \"string\") {\n            if (this.reconstructor) {\n                throw new Error(\"got plaintext data when reconstructing a packet\");\n            }\n            packet = this.decodeString(obj);\n            const isBinaryEvent = packet.type === PacketType.BINARY_EVENT;\n            if (isBinaryEvent || packet.type === PacketType.BINARY_ACK) {\n                packet.type = isBinaryEvent ? PacketType.EVENT : PacketType.ACK;\n                // binary packet's json\n                this.reconstructor = new BinaryReconstructor(packet);\n                // no attachments, labeled binary but no binary data to follow\n                if (packet.attachments === 0) {\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n            else {\n                // non-binary full packet\n                super.emitReserved(\"decoded\", packet);\n            }\n        }\n        else if (isBinary(obj) || obj.base64) {\n            // raw binary data\n            if (!this.reconstructor) {\n                throw new Error(\"got binary data when not reconstructing a packet\");\n            }\n            else {\n                packet = this.reconstructor.takeBinaryData(obj);\n                if (packet) {\n                    // received final buffer\n                    this.reconstructor = null;\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n        }\n        else {\n            throw new Error(\"Unknown type: \" + obj);\n        }\n    }\n    /**\n     * Decode a packet String (JSON data)\n     *\n     * @param {String} str\n     * @return {Object} packet\n     */\n    decodeString(str) {\n        let i = 0;\n        // look up type\n        const p = {\n            type: Number(str.charAt(0)),\n        };\n        if (PacketType[p.type] === undefined) {\n            throw new Error(\"unknown packet type \" + p.type);\n        }\n        // look up attachments if type binary\n        if (p.type === PacketType.BINARY_EVENT ||\n            p.type === PacketType.BINARY_ACK) {\n            const start = i + 1;\n            while (str.charAt(++i) !== \"-\" && i != str.length) { }\n            const buf = str.substring(start, i);\n            if (buf != Number(buf) || str.charAt(i) !== \"-\") {\n                throw new Error(\"Illegal attachments\");\n            }\n            p.attachments = Number(buf);\n        }\n        // look up namespace (if any)\n        if (\"/\" === str.charAt(i + 1)) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (\",\" === c)\n                    break;\n                if (i === str.length)\n                    break;\n            }\n            p.nsp = str.substring(start, i);\n        }\n        else {\n            p.nsp = \"/\";\n        }\n        // look up id\n        const next = str.charAt(i + 1);\n        if (\"\" !== next && Number(next) == next) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (null == c || Number(c) != c) {\n                    --i;\n                    break;\n                }\n                if (i === str.length)\n                    break;\n            }\n            p.id = Number(str.substring(start, i + 1));\n        }\n        // look up json data\n        if (str.charAt(++i)) {\n            const payload = this.tryParse(str.substr(i));\n            if (Decoder.isPayloadValid(p.type, payload)) {\n                p.data = payload;\n            }\n            else {\n                throw new Error(\"invalid payload\");\n            }\n        }\n        return p;\n    }\n    tryParse(str) {\n        try {\n            return JSON.parse(str, this.reviver);\n        }\n        catch (e) {\n            return false;\n        }\n    }\n    static isPayloadValid(type, payload) {\n        switch (type) {\n            case PacketType.CONNECT:\n                return isObject(payload);\n            case PacketType.DISCONNECT:\n                return payload === undefined;\n            case PacketType.CONNECT_ERROR:\n                return typeof payload === \"string\" || isObject(payload);\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                return (Array.isArray(payload) &&\n                    (typeof payload[0] === \"number\" ||\n                        (typeof payload[0] === \"string\" &&\n                            RESERVED_EVENTS.indexOf(payload[0]) === -1)));\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                return Array.isArray(payload);\n        }\n    }\n    /**\n     * Deallocates a parser's resources\n     */\n    destroy() {\n        if (this.reconstructor) {\n            this.reconstructor.finishedReconstruction();\n            this.reconstructor = null;\n        }\n    }\n}\n/**\n * A manager of a binary event's 'buffer sequence'. Should\n * be constructed whenever a packet of type BINARY_EVENT is\n * decoded.\n *\n * @param {Object} packet\n * @return {BinaryReconstructor} initialized reconstructor\n */\nclass BinaryReconstructor {\n    constructor(packet) {\n        this.packet = packet;\n        this.buffers = [];\n        this.reconPack = packet;\n    }\n    /**\n     * Method to be called when binary data received from connection\n     * after a BINARY_EVENT packet.\n     *\n     * @param {Buffer | ArrayBuffer} binData - the raw binary data received\n     * @return {null | Object} returns null if more binary data is expected or\n     *   a reconstructed packet object if all buffers have been received.\n     */\n    takeBinaryData(binData) {\n        this.buffers.push(binData);\n        if (this.buffers.length === this.reconPack.attachments) {\n            // done with buffer list\n            const packet = reconstructPacket(this.reconPack, this.buffers);\n            this.finishedReconstruction();\n            return packet;\n        }\n        return null;\n    }\n    /**\n     * Cleans up binary packet reconstruction variables.\n     */\n    finishedReconstruction() {\n        this.reconPack = null;\n        this.buffers = [];\n    }\n}\n", "const withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nconst isView = (obj) => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj.buffer instanceof ArrayBuffer;\n};\nconst toString = Object.prototype.toString;\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeFile = typeof File === \"function\" ||\n    (typeof File !== \"undefined\" &&\n        toString.call(File) === \"[object FileConstructor]\");\n/**\n * Returns true if obj is a Buffer, an ArrayBuffer, a Blob or a File.\n *\n * @private\n */\nexport function isBinary(obj) {\n    return ((withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj))) ||\n        (withNativeBlob && obj instanceof Blob) ||\n        (withNativeFile && obj instanceof File));\n}\nexport function hasBinary(obj, toJSON) {\n    if (!obj || typeof obj !== \"object\") {\n        return false;\n    }\n    if (Array.isArray(obj)) {\n        for (let i = 0, l = obj.length; i < l; i++) {\n            if (hasBinary(obj[i])) {\n                return true;\n            }\n        }\n        return false;\n    }\n    if (isBinary(obj)) {\n        return true;\n    }\n    if (obj.toJSON &&\n        typeof obj.toJSON === \"function\" &&\n        arguments.length === 1) {\n        return hasBinary(obj.toJSON(), true);\n    }\n    for (const key in obj) {\n        if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {\n            return true;\n        }\n    }\n    return false;\n}\n", "import { isBinary } from \"./is-binary.js\";\n/**\n * Replaces every Buffer | ArrayBuffer | Blob | File in packet with a numbered placeholder.\n *\n * @param {Object} packet - socket.io event packet\n * @return {Object} with deconstructed packet and list of buffers\n * @public\n */\nexport function deconstructPacket(packet) {\n    const buffers = [];\n    const packetData = packet.data;\n    const pack = packet;\n    pack.data = _deconstructPacket(packetData, buffers);\n    pack.attachments = buffers.length; // number of binary 'attachments'\n    return { packet: pack, buffers: buffers };\n}\nfunction _deconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (isBinary(data)) {\n        const placeholder = { _placeholder: true, num: buffers.length };\n        buffers.push(data);\n        return placeholder;\n    }\n    else if (Array.isArray(data)) {\n        const newData = new Array(data.length);\n        for (let i = 0; i < data.length; i++) {\n            newData[i] = _deconstructPacket(data[i], buffers);\n        }\n        return newData;\n    }\n    else if (typeof data === \"object\" && !(data instanceof Date)) {\n        const newData = {};\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                newData[key] = _deconstructPacket(data[key], buffers);\n            }\n        }\n        return newData;\n    }\n    return data;\n}\n/**\n * Reconstructs a binary packet from its placeholder packet and buffers\n *\n * @param {Object} packet - event packet with placeholders\n * @param {Array} buffers - binary buffers to put in placeholder positions\n * @return {Object} reconstructed packet\n * @public\n */\nexport function reconstructPacket(packet, buffers) {\n    packet.data = _reconstructPacket(packet.data, buffers);\n    delete packet.attachments; // no longer useful\n    return packet;\n}\nfunction _reconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (data && data._placeholder === true) {\n        const isIndexValid = typeof data.num === \"number\" &&\n            data.num >= 0 &&\n            data.num < buffers.length;\n        if (isIndexValid) {\n            return buffers[data.num]; // appropriate buffer (should be natural order anyway)\n        }\n        else {\n            throw new Error(\"illegal attachments\");\n        }\n    }\n    else if (Array.isArray(data)) {\n        for (let i = 0; i < data.length; i++) {\n            data[i] = _reconstructPacket(data[i], buffers);\n        }\n    }\n    else if (typeof data === \"object\") {\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                data[key] = _reconstructPacket(data[key], buffers);\n            }\n        }\n    }\n    return data;\n}\n", "export function on(obj, ev, fn) {\n    obj.on(ev, fn);\n    return function subDestroy() {\n        obj.off(ev, fn);\n    };\n}\n", "import { PacketType } from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\n/**\n * Internal events.\n * These events can't be emitted by the user.\n */\nconst RESERVED_EVENTS = Object.freeze({\n    connect: 1,\n    connect_error: 1,\n    disconnect: 1,\n    disconnecting: 1,\n    // EventEmitter reserved events: https://nodejs.org/api/events.html#events_event_newlistener\n    newListener: 1,\n    removeListener: 1,\n});\n/**\n * A Socket is the fundamental class for interacting with the server.\n *\n * A Socket belongs to a certain Namespace (by default /) and uses an underlying {@link Manager} to communicate.\n *\n * @example\n * const socket = io();\n *\n * socket.on(\"connect\", () => {\n *   console.log(\"connected\");\n * });\n *\n * // send an event to the server\n * socket.emit(\"foo\", \"bar\");\n *\n * socket.on(\"foobar\", () => {\n *   // an event was received from the server\n * });\n *\n * // upon disconnection\n * socket.on(\"disconnect\", (reason) => {\n *   console.log(`disconnected due to ${reason}`);\n * });\n */\nexport class Socket extends Emitter {\n    /**\n     * `Socket` constructor.\n     */\n    constructor(io, nsp, opts) {\n        super();\n        /**\n         * Whether the socket is currently connected to the server.\n         *\n         * @example\n         * const socket = io();\n         *\n         * socket.on(\"connect\", () => {\n         *   console.log(socket.connected); // true\n         * });\n         *\n         * socket.on(\"disconnect\", () => {\n         *   console.log(socket.connected); // false\n         * });\n         */\n        this.connected = false;\n        /**\n         * Whether the connection state was recovered after a temporary disconnection. In that case, any missed packets will\n         * be transmitted by the server.\n         */\n        this.recovered = false;\n        /**\n         * Buffer for packets received before the CONNECT packet\n         */\n        this.receiveBuffer = [];\n        /**\n         * Buffer for packets that will be sent once the socket is connected\n         */\n        this.sendBuffer = [];\n        /**\n         * The queue of packets to be sent with retry in case of failure.\n         *\n         * Packets are sent one by one, each waiting for the server acknowledgement, in order to guarantee the delivery order.\n         * @private\n         */\n        this._queue = [];\n        /**\n         * A sequence to generate the ID of the {@link QueuedPacket}.\n         * @private\n         */\n        this._queueSeq = 0;\n        this.ids = 0;\n        this.acks = {};\n        this.flags = {};\n        this.io = io;\n        this.nsp = nsp;\n        if (opts && opts.auth) {\n            this.auth = opts.auth;\n        }\n        this._opts = Object.assign({}, opts);\n        if (this.io._autoConnect)\n            this.open();\n    }\n    /**\n     * Whether the socket is currently disconnected\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"connect\", () => {\n     *   console.log(socket.disconnected); // false\n     * });\n     *\n     * socket.on(\"disconnect\", () => {\n     *   console.log(socket.disconnected); // true\n     * });\n     */\n    get disconnected() {\n        return !this.connected;\n    }\n    /**\n     * Subscribe to open, close and packet events\n     *\n     * @private\n     */\n    subEvents() {\n        if (this.subs)\n            return;\n        const io = this.io;\n        this.subs = [\n            on(io, \"open\", this.onopen.bind(this)),\n            on(io, \"packet\", this.onpacket.bind(this)),\n            on(io, \"error\", this.onerror.bind(this)),\n            on(io, \"close\", this.onclose.bind(this)),\n        ];\n    }\n    /**\n     * Whether the Socket will try to reconnect when its Manager connects or reconnects.\n     *\n     * @example\n     * const socket = io();\n     *\n     * console.log(socket.active); // true\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   if (reason === \"io server disconnect\") {\n     *     // the disconnection was initiated by the server, you need to manually reconnect\n     *     console.log(socket.active); // false\n     *   }\n     *   // else the socket will automatically try to reconnect\n     *   console.log(socket.active); // true\n     * });\n     */\n    get active() {\n        return !!this.subs;\n    }\n    /**\n     * \"Opens\" the socket.\n     *\n     * @example\n     * const socket = io({\n     *   autoConnect: false\n     * });\n     *\n     * socket.connect();\n     */\n    connect() {\n        if (this.connected)\n            return this;\n        this.subEvents();\n        if (!this.io[\"_reconnecting\"])\n            this.io.open(); // ensure open\n        if (\"open\" === this.io._readyState)\n            this.onopen();\n        return this;\n    }\n    /**\n     * Alias for {@link connect()}.\n     */\n    open() {\n        return this.connect();\n    }\n    /**\n     * Sends a `message` event.\n     *\n     * This method mimics the WebSocket.send() method.\n     *\n     * @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send\n     *\n     * @example\n     * socket.send(\"hello\");\n     *\n     * // this is equivalent to\n     * socket.emit(\"message\", \"hello\");\n     *\n     * @return self\n     */\n    send(...args) {\n        args.unshift(\"message\");\n        this.emit.apply(this, args);\n        return this;\n    }\n    /**\n     * Override `emit`.\n     * If the event is in `events`, it's emitted normally.\n     *\n     * @example\n     * socket.emit(\"hello\", \"world\");\n     *\n     * // all serializable datastructures are supported (no need to call JSON.stringify)\n     * socket.emit(\"hello\", 1, \"2\", { 3: [\"4\"], 5: Uint8Array.from([6]) });\n     *\n     * // with an acknowledgement from the server\n     * socket.emit(\"hello\", \"world\", (val) => {\n     *   // ...\n     * });\n     *\n     * @return self\n     */\n    emit(ev, ...args) {\n        if (RESERVED_EVENTS.hasOwnProperty(ev)) {\n            throw new Error('\"' + ev.toString() + '\" is a reserved event name');\n        }\n        args.unshift(ev);\n        if (this._opts.retries && !this.flags.fromQueue && !this.flags.volatile) {\n            this._addToQueue(args);\n            return this;\n        }\n        const packet = {\n            type: PacketType.EVENT,\n            data: args,\n        };\n        packet.options = {};\n        packet.options.compress = this.flags.compress !== false;\n        // event ack callback\n        if (\"function\" === typeof args[args.length - 1]) {\n            const id = this.ids++;\n            const ack = args.pop();\n            this._registerAckCallback(id, ack);\n            packet.id = id;\n        }\n        const isTransportWritable = this.io.engine &&\n            this.io.engine.transport &&\n            this.io.engine.transport.writable;\n        const discardPacket = this.flags.volatile && (!isTransportWritable || !this.connected);\n        if (discardPacket) {\n        }\n        else if (this.connected) {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        }\n        else {\n            this.sendBuffer.push(packet);\n        }\n        this.flags = {};\n        return this;\n    }\n    /**\n     * @private\n     */\n    _registerAckCallback(id, ack) {\n        var _a;\n        const timeout = (_a = this.flags.timeout) !== null && _a !== void 0 ? _a : this._opts.ackTimeout;\n        if (timeout === undefined) {\n            this.acks[id] = ack;\n            return;\n        }\n        // @ts-ignore\n        const timer = this.io.setTimeoutFn(() => {\n            delete this.acks[id];\n            for (let i = 0; i < this.sendBuffer.length; i++) {\n                if (this.sendBuffer[i].id === id) {\n                    this.sendBuffer.splice(i, 1);\n                }\n            }\n            ack.call(this, new Error(\"operation has timed out\"));\n        }, timeout);\n        this.acks[id] = (...args) => {\n            // @ts-ignore\n            this.io.clearTimeoutFn(timer);\n            ack.apply(this, [null, ...args]);\n        };\n    }\n    /**\n     * Emits an event and waits for an acknowledgement\n     *\n     * @example\n     * // without timeout\n     * const response = await socket.emitWithAck(\"hello\", \"world\");\n     *\n     * // with a specific timeout\n     * try {\n     *   const response = await socket.timeout(1000).emitWithAck(\"hello\", \"world\");\n     * } catch (err) {\n     *   // the server did not acknowledge the event in the given delay\n     * }\n     *\n     * @return a Promise that will be fulfilled when the server acknowledges the event\n     */\n    emitWithAck(ev, ...args) {\n        // the timeout flag is optional\n        const withErr = this.flags.timeout !== undefined || this._opts.ackTimeout !== undefined;\n        return new Promise((resolve, reject) => {\n            args.push((arg1, arg2) => {\n                if (withErr) {\n                    return arg1 ? reject(arg1) : resolve(arg2);\n                }\n                else {\n                    return resolve(arg1);\n                }\n            });\n            this.emit(ev, ...args);\n        });\n    }\n    /**\n     * Add the packet to the queue.\n     * @param args\n     * @private\n     */\n    _addToQueue(args) {\n        let ack;\n        if (typeof args[args.length - 1] === \"function\") {\n            ack = args.pop();\n        }\n        const packet = {\n            id: this._queueSeq++,\n            tryCount: 0,\n            pending: false,\n            args,\n            flags: Object.assign({ fromQueue: true }, this.flags),\n        };\n        args.push((err, ...responseArgs) => {\n            if (packet !== this._queue[0]) {\n                // the packet has already been acknowledged\n                return;\n            }\n            const hasError = err !== null;\n            if (hasError) {\n                if (packet.tryCount > this._opts.retries) {\n                    this._queue.shift();\n                    if (ack) {\n                        ack(err);\n                    }\n                }\n            }\n            else {\n                this._queue.shift();\n                if (ack) {\n                    ack(null, ...responseArgs);\n                }\n            }\n            packet.pending = false;\n            return this._drainQueue();\n        });\n        this._queue.push(packet);\n        this._drainQueue();\n    }\n    /**\n     * Send the first packet of the queue, and wait for an acknowledgement from the server.\n     * @param force - whether to resend a packet that has not been acknowledged yet\n     *\n     * @private\n     */\n    _drainQueue(force = false) {\n        if (!this.connected || this._queue.length === 0) {\n            return;\n        }\n        const packet = this._queue[0];\n        if (packet.pending && !force) {\n            return;\n        }\n        packet.pending = true;\n        packet.tryCount++;\n        this.flags = packet.flags;\n        this.emit.apply(this, packet.args);\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param packet\n     * @private\n     */\n    packet(packet) {\n        packet.nsp = this.nsp;\n        this.io._packet(packet);\n    }\n    /**\n     * Called upon engine `open`.\n     *\n     * @private\n     */\n    onopen() {\n        if (typeof this.auth == \"function\") {\n            this.auth((data) => {\n                this._sendConnectPacket(data);\n            });\n        }\n        else {\n            this._sendConnectPacket(this.auth);\n        }\n    }\n    /**\n     * Sends a CONNECT packet to initiate the Socket.IO session.\n     *\n     * @param data\n     * @private\n     */\n    _sendConnectPacket(data) {\n        this.packet({\n            type: PacketType.CONNECT,\n            data: this._pid\n                ? Object.assign({ pid: this._pid, offset: this._lastOffset }, data)\n                : data,\n        });\n    }\n    /**\n     * Called upon engine or manager `error`.\n     *\n     * @param err\n     * @private\n     */\n    onerror(err) {\n        if (!this.connected) {\n            this.emitReserved(\"connect_error\", err);\n        }\n    }\n    /**\n     * Called upon engine `close`.\n     *\n     * @param reason\n     * @param description\n     * @private\n     */\n    onclose(reason, description) {\n        this.connected = false;\n        delete this.id;\n        this.emitReserved(\"disconnect\", reason, description);\n    }\n    /**\n     * Called with socket packet.\n     *\n     * @param packet\n     * @private\n     */\n    onpacket(packet) {\n        const sameNamespace = packet.nsp === this.nsp;\n        if (!sameNamespace)\n            return;\n        switch (packet.type) {\n            case PacketType.CONNECT:\n                if (packet.data && packet.data.sid) {\n                    this.onconnect(packet.data.sid, packet.data.pid);\n                }\n                else {\n                    this.emitReserved(\"connect_error\", new Error(\"It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)\"));\n                }\n                break;\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                this.onevent(packet);\n                break;\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                this.onack(packet);\n                break;\n            case PacketType.DISCONNECT:\n                this.ondisconnect();\n                break;\n            case PacketType.CONNECT_ERROR:\n                this.destroy();\n                const err = new Error(packet.data.message);\n                // @ts-ignore\n                err.data = packet.data.data;\n                this.emitReserved(\"connect_error\", err);\n                break;\n        }\n    }\n    /**\n     * Called upon a server event.\n     *\n     * @param packet\n     * @private\n     */\n    onevent(packet) {\n        const args = packet.data || [];\n        if (null != packet.id) {\n            args.push(this.ack(packet.id));\n        }\n        if (this.connected) {\n            this.emitEvent(args);\n        }\n        else {\n            this.receiveBuffer.push(Object.freeze(args));\n        }\n    }\n    emitEvent(args) {\n        if (this._anyListeners && this._anyListeners.length) {\n            const listeners = this._anyListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, args);\n            }\n        }\n        super.emit.apply(this, args);\n        if (this._pid && args.length && typeof args[args.length - 1] === \"string\") {\n            this._lastOffset = args[args.length - 1];\n        }\n    }\n    /**\n     * Produces an ack callback to emit with an event.\n     *\n     * @private\n     */\n    ack(id) {\n        const self = this;\n        let sent = false;\n        return function (...args) {\n            // prevent double callbacks\n            if (sent)\n                return;\n            sent = true;\n            self.packet({\n                type: PacketType.ACK,\n                id: id,\n                data: args,\n            });\n        };\n    }\n    /**\n     * Called upon a server acknowlegement.\n     *\n     * @param packet\n     * @private\n     */\n    onack(packet) {\n        const ack = this.acks[packet.id];\n        if (\"function\" === typeof ack) {\n            ack.apply(this, packet.data);\n            delete this.acks[packet.id];\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon server connect.\n     *\n     * @private\n     */\n    onconnect(id, pid) {\n        this.id = id;\n        this.recovered = pid && this._pid === pid;\n        this._pid = pid; // defined only if connection state recovery is enabled\n        this.connected = true;\n        this.emitBuffered();\n        this.emitReserved(\"connect\");\n        this._drainQueue(true);\n    }\n    /**\n     * Emit buffered events (received and emitted).\n     *\n     * @private\n     */\n    emitBuffered() {\n        this.receiveBuffer.forEach((args) => this.emitEvent(args));\n        this.receiveBuffer = [];\n        this.sendBuffer.forEach((packet) => {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        });\n        this.sendBuffer = [];\n    }\n    /**\n     * Called upon server disconnect.\n     *\n     * @private\n     */\n    ondisconnect() {\n        this.destroy();\n        this.onclose(\"io server disconnect\");\n    }\n    /**\n     * Called upon forced client/server side disconnections,\n     * this method ensures the manager stops tracking us and\n     * that reconnections don't get triggered for this.\n     *\n     * @private\n     */\n    destroy() {\n        if (this.subs) {\n            // clean subscriptions to avoid reconnections\n            this.subs.forEach((subDestroy) => subDestroy());\n            this.subs = undefined;\n        }\n        this.io[\"_destroy\"](this);\n    }\n    /**\n     * Disconnects the socket manually. In that case, the socket will not try to reconnect.\n     *\n     * If this is the last active Socket instance of the {@link Manager}, the low-level connection will be closed.\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   // console.log(reason); prints \"io client disconnect\"\n     * });\n     *\n     * socket.disconnect();\n     *\n     * @return self\n     */\n    disconnect() {\n        if (this.connected) {\n            this.packet({ type: PacketType.DISCONNECT });\n        }\n        // remove socket from pool\n        this.destroy();\n        if (this.connected) {\n            // fire events\n            this.onclose(\"io client disconnect\");\n        }\n        return this;\n    }\n    /**\n     * Alias for {@link disconnect()}.\n     *\n     * @return self\n     */\n    close() {\n        return this.disconnect();\n    }\n    /**\n     * Sets the compress flag.\n     *\n     * @example\n     * socket.compress(false).emit(\"hello\");\n     *\n     * @param compress - if `true`, compresses the sending data\n     * @return self\n     */\n    compress(compress) {\n        this.flags.compress = compress;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the event message will be dropped when this socket is not\n     * ready to send messages.\n     *\n     * @example\n     * socket.volatile.emit(\"hello\"); // the server may or may not receive it\n     *\n     * @returns self\n     */\n    get volatile() {\n        this.flags.volatile = true;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the callback will be called with an error when the\n     * given number of milliseconds have elapsed without an acknowledgement from the server:\n     *\n     * @example\n     * socket.timeout(5000).emit(\"my-event\", (err) => {\n     *   if (err) {\n     *     // the server did not acknowledge the event in the given delay\n     *   }\n     * });\n     *\n     * @returns self\n     */\n    timeout(timeout) {\n        this.flags.timeout = timeout;\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * @example\n     * socket.onAny((event, ...args) => {\n     *   console.log(`got ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * @example\n     * socket.prependAny((event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * }\n     *\n     * socket.onAny(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAny(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAny();\n     *\n     * @param listener\n     */\n    offAny(listener) {\n        if (!this._anyListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAny() {\n        return this._anyListeners || [];\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.onAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.prependAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * }\n     *\n     * socket.onAnyOutgoing(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAnyOutgoing(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAnyOutgoing();\n     *\n     * @param [listener] - the catch-all listener (optional)\n     */\n    offAnyOutgoing(listener) {\n        if (!this._anyOutgoingListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyOutgoingListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyOutgoingListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAnyOutgoing() {\n        return this._anyOutgoingListeners || [];\n    }\n    /**\n     * Notify the listeners for each packet sent\n     *\n     * @param packet\n     *\n     * @private\n     */\n    notifyOutgoingListeners(packet) {\n        if (this._anyOutgoingListeners && this._anyOutgoingListeners.length) {\n            const listeners = this._anyOutgoingListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, packet.data);\n            }\n        }\n    }\n}\n", "/**\n * Initialize backoff timer with `opts`.\n *\n * - `min` initial timeout in milliseconds [100]\n * - `max` max timeout [10000]\n * - `jitter` [0]\n * - `factor` [2]\n *\n * @param {Object} opts\n * @api public\n */\nexport function Backoff(opts) {\n    opts = opts || {};\n    this.ms = opts.min || 100;\n    this.max = opts.max || 10000;\n    this.factor = opts.factor || 2;\n    this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;\n    this.attempts = 0;\n}\n/**\n * Return the backoff duration.\n *\n * @return {Number}\n * @api public\n */\nBackoff.prototype.duration = function () {\n    var ms = this.ms * Math.pow(this.factor, this.attempts++);\n    if (this.jitter) {\n        var rand = Math.random();\n        var deviation = Math.floor(rand * this.jitter * ms);\n        ms = (Math.floor(rand * 10) & 1) == 0 ? ms - deviation : ms + deviation;\n    }\n    return Math.min(ms, this.max) | 0;\n};\n/**\n * Reset the number of attempts.\n *\n * @api public\n */\nBackoff.prototype.reset = function () {\n    this.attempts = 0;\n};\n/**\n * Set the minimum duration\n *\n * @api public\n */\nBackoff.prototype.setMin = function (min) {\n    this.ms = min;\n};\n/**\n * Set the maximum duration\n *\n * @api public\n */\nBackoff.prototype.setMax = function (max) {\n    this.max = max;\n};\n/**\n * Set the jitter\n *\n * @api public\n */\nBackoff.prototype.setJitter = function (jitter) {\n    this.jitter = jitter;\n};\n", "import { Socket as Engine, installTimerFunctions, nextTick, } from \"engine.io-client\";\nimport { Socket } from \"./socket.js\";\nimport * as parser from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Backoff } from \"./contrib/backo2.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\nexport class Manager extends Emitter {\n    constructor(uri, opts) {\n        var _a;\n        super();\n        this.nsps = {};\n        this.subs = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = undefined;\n        }\n        opts = opts || {};\n        opts.path = opts.path || \"/socket.io\";\n        this.opts = opts;\n        installTimerFunctions(this, opts);\n        this.reconnection(opts.reconnection !== false);\n        this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);\n        this.reconnectionDelay(opts.reconnectionDelay || 1000);\n        this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);\n        this.randomizationFactor((_a = opts.randomizationFactor) !== null && _a !== void 0 ? _a : 0.5);\n        this.backoff = new Backoff({\n            min: this.reconnectionDelay(),\n            max: this.reconnectionDelayMax(),\n            jitter: this.randomizationFactor(),\n        });\n        this.timeout(null == opts.timeout ? 20000 : opts.timeout);\n        this._readyState = \"closed\";\n        this.uri = uri;\n        const _parser = opts.parser || parser;\n        this.encoder = new _parser.Encoder();\n        this.decoder = new _parser.Decoder();\n        this._autoConnect = opts.autoConnect !== false;\n        if (this._autoConnect)\n            this.open();\n    }\n    reconnection(v) {\n        if (!arguments.length)\n            return this._reconnection;\n        this._reconnection = !!v;\n        return this;\n    }\n    reconnectionAttempts(v) {\n        if (v === undefined)\n            return this._reconnectionAttempts;\n        this._reconnectionAttempts = v;\n        return this;\n    }\n    reconnectionDelay(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelay;\n        this._reconnectionDelay = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMin(v);\n        return this;\n    }\n    randomizationFactor(v) {\n        var _a;\n        if (v === undefined)\n            return this._randomizationFactor;\n        this._randomizationFactor = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setJitter(v);\n        return this;\n    }\n    reconnectionDelayMax(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelayMax;\n        this._reconnectionDelayMax = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMax(v);\n        return this;\n    }\n    timeout(v) {\n        if (!arguments.length)\n            return this._timeout;\n        this._timeout = v;\n        return this;\n    }\n    /**\n     * Starts trying to reconnect if reconnection is enabled and we have not\n     * started reconnecting yet\n     *\n     * @private\n     */\n    maybeReconnectOnOpen() {\n        // Only try to reconnect if it's the first time we're connecting\n        if (!this._reconnecting &&\n            this._reconnection &&\n            this.backoff.attempts === 0) {\n            // keeps reconnection from firing twice for the same reconnection loop\n            this.reconnect();\n        }\n    }\n    /**\n     * Sets the current transport `socket`.\n     *\n     * @param {Function} fn - optional, callback\n     * @return self\n     * @public\n     */\n    open(fn) {\n        if (~this._readyState.indexOf(\"open\"))\n            return this;\n        this.engine = new Engine(this.uri, this.opts);\n        const socket = this.engine;\n        const self = this;\n        this._readyState = \"opening\";\n        this.skipReconnect = false;\n        // emit `open`\n        const openSubDestroy = on(socket, \"open\", function () {\n            self.onopen();\n            fn && fn();\n        });\n        const onError = (err) => {\n            this.cleanup();\n            this._readyState = \"closed\";\n            this.emitReserved(\"error\", err);\n            if (fn) {\n                fn(err);\n            }\n            else {\n                // Only do this if there is no fn to handle the error\n                this.maybeReconnectOnOpen();\n            }\n        };\n        // emit `error`\n        const errorSub = on(socket, \"error\", onError);\n        if (false !== this._timeout) {\n            const timeout = this._timeout;\n            // set timer\n            const timer = this.setTimeoutFn(() => {\n                openSubDestroy();\n                onError(new Error(\"timeout\"));\n                socket.close();\n   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on(this.decoder, \"decoded\", this.ondecoded.bind(this)));\n    }\n    /**\n     * Called upon a ping.\n     *\n     * @private\n     */\n    onping() {\n        this.emitReserved(\"ping\");\n    }\n    /**\n     * Called with data.\n     *\n     * @private\n     */\n    ondata(data) {\n        try {\n            this.decoder.add(data);\n        }\n        catch (e) {\n            this.onclose(\"parse error\", e);\n        }\n    }\n    /**\n     * Called when parser fully decodes a packet.\n     *\n     * @private\n     */\n    ondecoded(packet) {\n        // the nextTick call prevents an exception in a user-provided event listener from triggering a disconnection due to a \"parse error\"\n        nextTick(() => {\n            this.emitReserved(\"packet\", packet);\n        }, this.setTimeoutFn);\n    }\n    /**\n     * Called upon socket error.\n     *\n     * @private\n     */\n    onerror(err) {\n        this.emitReserved(\"error\", err);\n    }\n    /**\n     * Creates a new socket for the given `nsp`.\n     *\n     * @return {Socket}\n     * @public\n     */\n    socket(nsp, opts) {\n        let socket = this.nsps[nsp];\n        if (!socket) {\n            socket = new Socket(this, nsp, opts);\n            this.nsps[nsp] = socket;\n        }\n        else if (this._autoConnect && !socket.active) {\n            socket.connect();\n        }\n        return socket;\n    }\n    /**\n     * Called upon a socket close.\n     *\n     * @param socket\n     * @private\n     */\n    _destroy(socket) {\n        const nsps = Object.keys(this.nsps);\n        for (const nsp of nsps) {\n            const socket = this.nsps[nsp];\n            if (socket.active) {\n                return;\n            }\n        }\n        this._close();\n    }\n    /**\n     * Writes a packet.\n     *\n     * @param packet\n     * @private\n     */\n    _packet(packet) {\n        const encodedPackets = this.encoder.encode(packet);\n        for (let i = 0; i < encodedPackets.length; i++) {\n            this.engine.write(encodedPackets[i], packet.options);\n        }\n    }\n    /**\n     * Clean up transport subscriptions and packet buffer.\n     *\n     * @private\n     */\n    cleanup() {\n        this.subs.forEach((subDestroy) => subDestroy());\n        this.subs.length = 0;\n        this.decoder.destroy();\n    }\n    /**\n     * Close the current socket.\n     *\n     * @private\n     */\n    _close() {\n        this.skipReconnect = true;\n        this._reconnecting = false;\n        this.onclose(\"forced close\");\n        if (this.engine)\n            this.engine.close();\n    }\n    /**\n     * Alias for close()\n     *\n     * @private\n     */\n    disconnect() {\n        return this._close();\n    }\n    /**\n     * Called upon engine close.\n     *\n     * @private\n     */\n    onclose(reason, description) {\n        this.cleanup();\n        this.backoff.reset();\n        this._readyState = \"closed\";\n        this.emitReserved(\"close\", reason, description);\n        if (this._reconnection && !this.skipReconnect) {\n            this.reconnect();\n        }\n    }\n    /**\n     * Attempt a reconnection.\n     *\n     * @private\n     */\n    reconnect() {\n        if (this._reconnecting || this.skipReconnect)\n            return this;\n        const self = this;\n        if (this.backoff.attempts >= this._reconnectionAttempts) {\n            this.backoff.reset();\n            this.emitReserved(\"reconnect_failed\");\n            this._reconnecting = false;\n        }\n        else {\n            const delay = this.backoff.duration();\n            this._reconnecting = true;\n            const timer = this.setTimeoutFn(() => {\n                if (self.skipReconnect)\n                    return;\n                this.emitReserved(\"reconnect_attempt\", self.backoff.attempts);\n                // check again for the case socket closed in above events\n                if (self.skipReconnect)\n                    return;\n                self.open((err) => {\n                    if (err) {\n                        self._reconnecting = false;\n                        self.reconnect();\n                        this.emitReserved(\"reconnect_error\", err);\n                    }\n                    else {\n                        self.onreconnect();\n                    }\n                });\n            }, delay);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n    }\n    /**\n     * Called upon successful reconnect.\n     *\n     * @private\n     */\n    onreconnect() {\n        const attempt = this.backoff.attempts;\n        this._reconnecting = false;\n        this.backoff.reset();\n        this.emitReserved(\"reconnect\", attempt);\n    }\n}\n", "import { url } from \"./url.js\";\nimport { Manager } from \"./manager.js\";\nimport { Socket } from \"./socket.js\";\n/**\n * Managers cache.\n */\nconst cache = {};\nfunction lookup(uri, opts) {\n    if (typeof uri === \"object\") {\n        opts = uri;\n        uri = undefined;\n    }\n    opts = opts || {};\n    const parsed = url(uri, opts.path || \"/socket.io\");\n    const source = parsed.source;\n    const id = parsed.id;\n    const path = parsed.path;\n    const sameNamespace = cache[id] && path in cache[id][\"nsps\"];\n    const newConnection = opts.forceNew ||\n        opts[\"force new connection\"] ||\n        false === opts.multiplex ||\n        sameNamespace;\n    let io;\n    if (newConnection) {\n        io = new Manager(source, opts);\n    }\n    else {\n        if (!cache[id]) {\n            cache[id] = new Manager(source, opts);\n        }\n        io = cache[id];\n    }\n    if (parsed.query && !opts.query) {\n        opts.query = parsed.queryKey;\n    }\n    return io.socket(parsed.path, opts);\n}\n// so that \"lookup\" can be used both as a function (e.g. `io(...)`) and as a\n// namespace (e.g. `io.connect(...)`), for backward compatibility\nObject.assign(lookup, {\n    Manager,\n    Socket,\n    io: lookup,\n    connect: lookup,\n});\n/**\n * Protocol version.\n *\n * @public\n */\nexport { protocol } from \"socket.io-parser\";\n/**\n * Expose constructors for standalone build.\n *\n * @public\n */\nexport { Manager, Socket, lookup as io, lookup as connect, lookup as default, };\n"],
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   "names": ["require_ui", "__commonJSMin", "exports", "module", "_a", "Ui", "win", "extLog", "jsonHighlight", "__publicField", "json", "msg", "el", "component", "mdText", "opts", "str", "lang", "md", "html", "url", "newScript", "newStyle", "textFn", "type", "ui", "content", "toaster", "toast", "evt", "config", "notify", "resolve", "reject", "ev", "permit", "response", "contentType", "data", "err", "comp", "attrib", "prop", "parentEl", "components", "ns", "compToAdd", "i", "newEl", "isRecurse", "elParent", "all", "compToRemove", "els", "compToReplace", "elToReplace", "compToUpd", "elToUpd", "__toESM", "__require", "script", "sheet", "node", "cssSelector", "thisOut", "listEntries", "bodyEntries", "headEntries", "cols", "v", "propName", "selection", "out", "p", "key", "uiOptions", "error", "slot", "txtReturn", "import_ui", "_UibVar", "__publicField", "attrib", "oldVal", "newVal", "val", "t", "UibVar", "PACKET_TYPES", "PACKET_TYPES_REVERSE", "key", "ERROR_PACKET", "withNativeBlob", "withNativeArrayBuffer", "isView", "obj", "encodePacket", "type", "data", "supportsBinary", "callback", "encodeBlobAsBase64", "PACKET_TYPES", "fileReader", "content", "toArray", "TEXT_ENCODER", "encodePacketToBinary", "packet", "encoded", "chars", "lookup", "i", "decode", "base64", "bufferLength", "len", "p", "encoded1", "encoded2", "encoded3", "encoded4", "arraybuffer", "bytes", "lookup", "withNativeArrayBuffer", "decodePacket", "encodedPacket", "binaryType", "mapBinary", "type", "decodeBase64Packet", "PACKET_TYPES_REVERSE", "ERROR_PACKET", "data", "decoded", "decode", "SEPARATOR", "encodePayload", "packets", "callback", "length", "encodedPackets", "count", "packet", "i", "encodePacket", "encodedPacket", "decodePayload", "encodedPayload", "binaryType", "decodedPacket", "decodePacket", "createPacketEncoderStream", "controller", "encodePacketToBinary", "payloadLength", "header", "view", "TEXT_DECODER", "totalLength", "chunks", "acc", "chunk", "concatChunks", "size", "buffer", "j", "createPacketDecoderStream", "maxPayload", "state", "expectedLength", "isBinary", "headerArray", "n", "ERROR_PACKET", "data", "protocol", "Emitter", "obj", "mixin", "key", "event", "fn", "on", "callbacks", "cb", "i", "args", "len", "globalThisShim", "pick", "obj", "attr", "acc", "k", "NATIVE_SET_TIMEOUT", "globalThisShim", "NATIVE_CLEAR_TIMEOUT", "installTimerFunctions", "opts", "BASE64_OVERHEAD", "byteLength", "utf8Length", "str", "c", "length", "l", "encode", "obj", "str", "i", "decode", "qs", "qry", "pairs", "l", "pair", "TransportError", "reason", "description", "context", "Transport", "Emitter", "opts", "installTimerFunctions", "packets", "data", "packet", "decodePacket", "details", "onPause", "schema", "query", "hostname", "encodedQuery", "encode", "alphabet", "length", "map", "seed", "i", "prev", "encode", "num", "encoded", "yeast", "now", "encode", "prev", "seed", "i", "length", "map", "alphabet", "value", "hasCORS", "XHR", "opts", "xdomain", "hasCORS", "globalThisShim", "empty", "hasXHR2", "XHR", "Polling", "Transport", "opts", "isSSL", "port", "forceBase64", "onPause", "pause", "total", "data", "callback", "packet", "decodePayload", "close", "packets", "encodePayload", "schema", "query", "yeast", "Request", "fn", "req", "xhrStatus", "context", "_Request", "Emitter", "uri", "installTimerFunctions", "_a", "pick", "xhr", "i", "e", "err", "fromError", "unloadHandler", "terminationEvent", "globalThisShim", "nextTick", "cb", "setTimeoutFn", "WebSocket", "globalThisShim", "usingBrowserWebSocket", "defaultBinaryType", "isReactNative", "WS", "Transport", "opts", "uri", "protocols", "pick", "usingBrowserWebSocket", "WebSocket", "err", "closeEvent", "ev", "packets", "i", "packet", "lastPacket", "encodePacket", "data", "nextTick", "schema", "query", "yeast", "WT", "Transport", "err", "stream", "decoderStream", "createPacketDecoderStream", "reader", "encoderStream", "createPacketEncoderStream", "read", "done", "value", "packet", "packets", "i", "lastPacket", "nextTick", "_a", "transports", "WS", "WT", "Polling", "re", "parts", "parse", "str", "src", "b", "e", "m", "uri", "i", "pathNames", "queryKey", "obj", "path", "regx", "names", "query", "data", "$0", "$1", "$2", "Socket", "_Socket", "Emitter", "uri", "opts", "defaultBinaryType", "parse", "installTimerFunctions", "decode", "name", "query", "protocol", "transports", "transport", "reason", "failed", "onTransportOpen", "msg", "cleanup", "err", "freezeTransport", "onerror", "error", "onTransportClose", "onclose", "onupgrade", "to", "i", "l", "packet", "data", "packets", "payloadSize", "byteLength", "options", "fn", "type", "close", "cleanupAndClose", "waitForUpgrade", "description", "upgrades", "filteredUpgrades", "j", "protocol", "Socket", "url", "uri", "path", "loc", "obj", "parse", "host", "esm_exports", "__export", "Decoder", "Encoder", "PacketType", "protocol", "withNativeArrayBuffer", "isView", "obj", "toString", "withNativeBlob", "withNativeFile", "isBinary", "hasBinary", "toJSON", "i", "l", "key", "deconstructPacket", "packet", "buffers", "packetData", "pack", "_deconstructPacket", "data", "isBinary", "placeholder", "newData", "key", "reconstructPacket", "_reconstructPacket", "i", "RESERVED_EVENTS", "protocol", "PacketType", "Encoder", "replacer", "obj", "hasBinary", "str", "deconstruction", "deconstructPacket", "pack", "buffers", "isObject", "value", "Decoder", "_Decoder", "Emitter", "reviver", "packet", "isBinaryEvent", "BinaryReconstructor", "isBinary", "i", "p", "start", "buf", "next", "c", "payload", "type", "binData", "reconstructPacket", "on", "obj", "ev", "fn", "RESERVED_EVENTS", "Socket", "Emitter", "io", "nsp", "opts", "on", "args", "ev", "packet", "PacketType", "id", "ack", "isTransportWritable", "_a", "timeout", "timer", "i", "withErr", "resolve", "reject", "arg1", "arg2", "err", "responseArgs", "force", "data", "reason", "description", "listeners", "listener", "self", "sent", "pid", "subDestroy", "compress", "Backoff", "opts", "ms", "rand", "deviation", "min", "max", "jitter", "Manager", "Emitter", "uri", "opts", "_a", "installTimerFunctions", "Backoff", "_parser", "esm_exports", "v", "fn", "Socket", "socket", "self", "openSubDestroy", "on", "onError", "err", "errorSub", "timeout", "timer", "data", "e", "packet", "nextTick", "nsp", "nsps", "encodedPackets", "subDestroy", "reason", "description", "delay", "attempt", "cache", "lookup", "uri", "opts", "parsed", "url", "source", "id", "path", "sameNamespace", "newConnection", "io", "Manager", "Socket", "version", "isMinified", "param", "logLevel", "LOG_STYLES", "log", "args", "level", "strLevel", "head", "makeMeAnObject", "thing", "property", "out", "urlJoin", "e", "syntaxHighlight", "json", "match", "cls", "_ui", "Ui", "_a", "_pingInterval", "_propChangeCallbacks", "_msgRecvdByTopicCallbacks", "_timerid", "_MsgHandler", "_isShowMsg", "_isShowStatus", "_sendUrlHash", "_extCommands", "_managedVars", "_showStatus", "_uiObservers", "Uib", "__publicField", "__privateAdd", "cb", "c", "splitC", "event", "__privateGet", "fullPath", "autoloadVars", "id", "prop", "val", "store", "autoload", "value", "autoVars", "title", "details", "callback", "nextCbRef", "propChangeCallback", "cbRef", "topic", "msgRecvdEvtCallback", "msg", "receivedMsg", "serverTimestamp", "offset", "cssSelector", "el", "originator", "ms", "oReq", "headers", "elapsedTime", "__privateSet", "varToCopy", "data", "exists", "url", "deflt", "ret", "toggle", "component", "mdText", "html", "textFn", "type", "ui", "propName", "uiOptions", "showHide", "parent", "slot", "config", "res", "err", "opts", "root", "entry", "startStop", "send", "showLog", "targetNode", "that", "mutationList", "mu", "oMu", "an", "i", "htmlCache", "msgToSend", "channel", "numMsgs", "domevent", "target", "props", "key", "ignoreAttribs", "attribs", "name", "form", "frmVals", "frmEl", "v", "classes", "payload", "nprops", "cmd", "quiet", "response", "info", "newUrl", "obj", "r", "receivedCtrlMsg", "txtToSend", "ioNamespace", "u", "t", "delay", "factor", "depth", "reason", "lookup", "options", "eMsg", "uibuilder", "uibuilder_module_default", "uibuilder", "UibVar"]
 }
diff --git a/nodes/libs/ui.js b/nodes/libs/ui.js
index 668213ea..2d67f50d 100644
--- a/nodes/libs/ui.js
+++ b/nodes/libs/ui.js
@@ -387,6 +387,10 @@ const Ui = class Ui2 {
       this.replaceSlotMarkdown(el, comp);
     }
   }
+  /** External alias for _uiComposeComponent
+   * @param {*} el HTML Element to enhance
+   * @param {*} comp Individual uibuilder ui component spec
+   */
   uiEnhanceElement(el, comp) {
     this._uiComposeComponent(el, comp);
   }
diff --git a/src/front-end-module/ui.js b/src/front-end-module/ui.js
index 412dffc6..54329e73 100644
--- a/src/front-end-module/ui.js
+++ b/src/front-end-module/ui.js
@@ -474,6 +474,10 @@ const Ui = class Ui {
         //#endregion
     }
 
+    /** External alias for _uiComposeComponent
+     * @param {*} el HTML Element to enhance
+     * @param {*} comp Individual uibuilder ui component spec
+     */
     uiEnhanceElement(el, comp) {
         this._uiComposeComponent(el, comp)
     }

From 7abe5569829a4f1e108cb9c07a16b3a8a3a00b45 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Sat, 25 Nov 2023 14:56:15 +0000
Subject: [PATCH 14/78] Reorder methods int/ext-alpha order for ease of finding

---
 front-end/ui.esm.js                 | 1204 +++++++++++++-------------
 front-end/ui.esm.min.js             |    2 +-
 front-end/ui.esm.min.js.map         |    6 +-
 front-end/ui.iife.js                | 1204 +++++++++++++-------------
 front-end/ui.iife.min.js            |    2 +-
 front-end/ui.iife.min.js.map        |    6 +-
 front-end/uibuilder.esm.js          | 1204 +++++++++++++-------------
 front-end/uibuilder.esm.min.js      |    2 +-
 front-end/uibuilder.esm.min.js.map  |    6 +-
 front-end/uibuilder.iife.js         | 1204 +++++++++++++-------------
 front-end/uibuilder.iife.min.js     |    2 +-
 front-end/uibuilder.iife.min.js.map |    6 +-
 nodes/libs/ui.js                    | 1204 +++++++++++++-------------
 src/front-end-module/ui.js          | 1237 ++++++++++++++-------------
 14 files changed, 3643 insertions(+), 3646 deletions(-)

diff --git a/front-end/ui.esm.js b/front-end/ui.esm.js
index 1f6735bd..24022542 100644
--- a/front-end/ui.esm.js
+++ b/front-end/ui.esm.js
@@ -46,210 +46,7 @@ var require_ui = __commonJS({
           this.syntaxHighlight = function() {
           };
       }
-      /** Directly manage UI via JSON
-       * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions
-       */
-      ui(json) {
-        let msg = {};
-        if (json._ui)
-          msg = json;
-        else
-          msg._ui = json;
-        this._uiManager(msg);
-      }
-      // TODO Add multi-slot
-      /** Replace or add an HTML element's slot from text or an HTML string
-       * Will use DOMPurify if that library has been loaded to window.
-       * param {*} ui Single entry from the msg._ui property
-       * @param {Element} el Reference to the element that we want to update
-       * @param {*} component The component we are trying to add/replace
-       */
-      replaceSlot(el, component) {
-        if (!component.slot)
-          return;
-        if (!el)
-          return;
-        if (this.window["DOMPurify"])
-          component.slot = this.window["DOMPurify"].sanitize(component.slot);
-        el.innerHTML = component.slot;
-      }
-      /** Converts markdown text input to HTML if the Markdown-IT library is loaded
-       * Otherwise simply returns the text
-       * @param {string} mdText The input markdown string
-       * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text
-       */
-      convertMarkdown(mdText) {
-        if (!mdText)
-          return "";
-        if (!this.window["markdownit"])
-          return mdText;
-        const opts = {
-          // eslint-disable-line object-shorthand
-          html: true,
-          linkify: true,
-          _highlight: true,
-          langPrefix: "language-",
-          highlight(str, lang) {
-            if (lang && this.window["hljs"] && this.window["hljs"].getLanguage(lang)) {
-              try {
-                return `<pre class="highlight" data-language="${lang.toUpperCase()}">
-                                <code class="language-${lang}">${this.window["hljs"].highlightAuto(str).value}</code></pre>`;
-              } finally {
-              }
-            }
-            return `<pre class="highlight"><code>${md.utils.escapeHtml(str)}</code></pre>`;
-          }
-        };
-        const md = this.window["markdownit"](opts);
-        return md.render(mdText);
-      }
-      /** Sanitise HTML to make it safe - if the DOMPurify library is loaded
-       * Otherwise just returns that HTML as-is.
-       * @param {string} html The input HTML string
-       * @returns {string} The sanitised HTML or the original if DOMPurify not loaded
-       */
-      sanitiseHTML(html) {
-        if (!this.window["DOMPurify"])
-          return html;
-        return this.window["DOMPurify"].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs });
-      }
-      /** Replace or add an HTML element's slot from a Markdown string
-       * Only does something if the markdownit library has been loaded to window.
-       * Will use DOMPurify if that library has been loaded to window.
-       * @param {Element} el Reference to the element that we want to update
-       * @param {*} component The component we are trying to add/replace
-       */
-      replaceSlotMarkdown(el, component) {
-        if (!el)
-          return;
-        if (!component.slotMarkdown)
-          return;
-        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown);
-        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown);
-        el.innerHTML = component.slotMarkdown;
-      }
-      /** Attach a new remote script to the end of HEAD synchronously
-       * NOTE: It takes too long for most scripts to finish loading
-       *       so this is pretty useless to work with the dynamic UI features directly.
-       * @param {string} url The url to be used in the script src attribute
-       */
-      loadScriptSrc(url) {
-        const newScript = this.document.createElement("script");
-        newScript.src = url;
-        newScript.async = false;
-        this.document.head.appendChild(newScript);
-      }
-      /** Attach a new remote stylesheet link to the end of HEAD synchronously
-       * NOTE: It takes too long for most scripts to finish loading
-       *       so this is pretty useless to work with the dynamic UI features directly.
-       * @param {string} url The url to be used in the style link href attribute
-       */
-      loadStyleSrc(url) {
-        const newStyle = this.document.createElement("link");
-        newStyle.href = url;
-        newStyle.rel = "stylesheet";
-        newStyle.type = "text/css";
-        this.document.head.appendChild(newStyle);
-      }
-      /** Attach a new text script to the end of HEAD synchronously
-       * NOTE: It takes too long for most scripts to finish loading
-       *       so this is pretty useless to work with the dynamic UI features directly.
-       * @param {string} textFn The text to be loaded as a script
-       */
-      loadScriptTxt(textFn) {
-        const newScript = this.document.createElement("script");
-        newScript.async = false;
-        newScript.textContent = textFn;
-        this.document.head.appendChild(newScript);
-      }
-      /** Attach a new text stylesheet to the end of HEAD synchronously
-       * NOTE: It takes too long for most scripts to finish loading
-       *       so this is pretty useless to work with the dynamic UI features directly.
-       * @param {string} textFn The text to be loaded as a stylesheet
-       */
-      loadStyleTxt(textFn) {
-        const newStyle = this.document.createElement("style");
-        newStyle.textContent = textFn;
-        this.document.head.appendChild(newStyle);
-      }
-      /** Show a pop-over "toast" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen
-       * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,
-       *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,
-       *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/
-       * @param {"notify"|"alert"} type Dialog type
-       * @param {object} ui standardised ui data
-       * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.
-       * @returns {void}
-       */
-      showDialog(type, ui, msg) {
-        let content = "";
-        if (msg.payload && typeof msg.payload === "string")
-          content += msg.payload;
-        if (ui.content)
-          content += ui.content;
-        if (content === "") {
-          _a.log(1, "Ui:showDialog", "Toast content is blank. Not shown.")();
-          return;
-        }
-        if (!ui.title && msg.topic)
-          ui.title = msg.topic;
-        if (ui.title)
-          content = `<p class="toast-head">${ui.title}</p><p>${content}</p>`;
-        if (ui.noAutohide)
-          ui.noAutoHide = ui.noAutohide;
-        if (ui.noAutoHide)
-          ui.autohide = !ui.noAutoHide;
-        if (ui.autoHideDelay) {
-          if (!ui.autohide)
-            ui.autohide = true;
-          ui.delay = ui.autoHideDelay;
-        } else
-          ui.autoHideDelay = 1e4;
-        if (!Object.prototype.hasOwnProperty.call(ui, "autohide"))
-          ui.autohide = true;
-        if (type === "alert") {
-          ui.modal = true;
-          ui.autohide = false;
-          content = `<svg viewBox="0 0 192.146 192.146" style="width:30;background-color:transparent;"><path d="M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z" /></svg> ${content}`;
-        }
-        let toaster = this.document.getElementById("toaster");
-        if (toaster === null) {
-          toaster = this.document.createElement("div");
-          toaster.id = "toaster";
-          toaster.title = "Click to clear all notifcations";
-          toaster.setAttribute("class", "toaster");
-          toaster.setAttribute("role", "dialog");
-          toaster.setAttribute("arial-label", "Toast message");
-          toaster.onclick = function() {
-            toaster.remove();
-          };
-          this.document.body.insertAdjacentElement("afterbegin", toaster);
-        }
-        const toast = this.document.createElement("div");
-        toast.title = "Click to clear this notifcation";
-        toast.setAttribute("class", `toast ${ui.variant ? ui.variant : ""} ${type}`);
-        toast.innerHTML = content;
-        toast.setAttribute("role", "alertdialog");
-        if (ui.modal)
-          toast.setAttribute("aria-modal", ui.modal);
-        toast.onclick = function(evt) {
-          evt.stopPropagation();
-          toast.remove();
-          if (toaster.childElementCount < 1)
-            toaster.remove();
-        };
-        if (type === "alert") {
-        }
-        toaster.insertAdjacentElement(ui.appendToast === true ? "beforeend" : "afterbegin", toast);
-        if (ui.autohide === true) {
-          setInterval(() => {
-            toast.remove();
-            if (toaster.childElementCount < 1)
-              toaster.remove();
-          }, ui.autoHideDelay);
-        }
-      }
-      // --- End of showDialog ---
+      //#region ---- Internal Methods ----
       /** Show a browser notification if the browser and the user allows it
        * @param {object} config Notification config data
        * @returns {Promise} Resolves on close or click event, returns the event.
@@ -283,74 +80,81 @@ var require_ui = __commonJS({
           return Promise.reject(new Error("Browser refused to create a Notification"));
         }
       }
-      /** Show a browser notification if possible. Returns a promise
-       * Config can be a simple string, a Node-RED msg (topic as title, payload as body)
-       * or a Notifications API options object + config.title string.
-       * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification
-       * @param {object|string} config Notification config object or simple message string
-       * @returns {Promise} Resolves on close or click event, returns the event.
-       */
-      async notification(config) {
-        if (typeof config === "string") {
-          config = { body: config };
-        }
-        if (typeof Notification === "undefined")
-          return Promise.reject(new Error("Notifications not available in this browser"));
-        let permit = Notification.permission;
-        if (permit === "denied") {
-          return Promise.reject(new Error("Notifications not permitted by user"));
-        } else if (permit === "granted") {
-          return this._showNotification(config);
-        } else {
-          permit = await Notification.requestPermission();
-          if (permit === "granted") {
-            return this._showNotification(config);
-          }
-          return Promise.reject(new Error("Notifications not permitted by user"));
-        }
-      }
-      /** Load a dynamic UI from a JSON web reponse
-       * @param {string} url URL that will return the ui JSON
+      // Vue dynamic inserts Don't really work ...
+      // _uiAddVue(ui, isRecurse) {
+      //     // must be Vue
+      //     // must have only 1 root element
+      //     const compToAdd = ui.components[0]
+      //     const newEl = this.document.createElement(compToAdd.type)
+      //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload
+      //     this._uiComposeComponent(newEl, compToAdd)
+      //     // If nested components, go again - but don't pass payload to sub-components
+      //     if (compToAdd.components) {
+      //         this._uiExtendEl(newEl, compToAdd.components)
+      //     }
+      //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()
+      //     this.set('magick', newEl.outerHTML)
+      //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)
+      //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)
+      // }
+      // TODO Add check if ID already exists
+      // TODO Allow single add without using components array
+      /** Handle incoming msg._ui add requests
+       * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object
+       * @param {boolean} isRecurse Is this a recursive call?
        */
-      loadui(url) {
-        if (!fetch) {
-          _a.log(0, "Ui:loadui", "Current environment does not include `fetch`, skipping.")();
-          return;
-        }
-        if (!url) {
-          _a.log(0, "Ui:loadui", "url parameter must be provided, skipping.")();
-          return;
-        }
-        fetch(url).then((response) => {
-          if (response.ok === false) {
-            throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`);
+      _uiAdd(ui, isRecurse) {
+        _a.log("trace", "Ui:_uiManager:add", "Starting _uiAdd")();
+        ui.components.forEach((compToAdd, i) => {
+          _a.log("trace", `Ui:_uiAdd:components-forEach:${i}`, "Component to add: ", compToAdd)();
+          let newEl;
+          switch (compToAdd.type) {
+            case "html": {
+              compToAdd.ns = "html";
+              newEl = this.document.createElement("div");
+              break;
+            }
+            case "svg": {
+              compToAdd.ns = "svg";
+              newEl = this.document.createElementNS("http://www.w3.org/2000/svg", "svg");
+              break;
+            }
+            default: {
+              compToAdd.ns = "dom";
+              newEl = this.document.createElement(compToAdd.type);
+              break;
+            }
           }
-          _a.log("trace", "Ui:loadui:then1", `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)();
-          const contentType = response.headers.get("content-type");
-          if (!contentType || !contentType.includes("application/json")) {
-            throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`);
+          if (!compToAdd.slot && ui.payload)
+            compToAdd.slot = ui.payload;
+          this._uiComposeComponent(newEl, compToAdd);
+          let elParent;
+          if (compToAdd.parentEl) {
+            elParent = compToAdd.parentEl;
+          } else if (ui.parentEl) {
+            elParent = ui.parentEl;
+          } else if (compToAdd.parent) {
+            elParent = this.document.querySelector(compToAdd.parent);
+          } else if (ui.parent) {
+            elParent = this.document.querySelector(ui.parent);
           }
-          return response.json();
-        }).then((data) => {
-          if (data !== void 0) {
-            _a.log("trace", "Ui:loadui:then2", "Parsed JSON successfully obtained")();
-            this._uiManager({ _ui: data });
-            return true;
+          if (!elParent) {
+            _a.log("info", "Ui:_uiAdd", "No parent found, adding to body")();
+            elParent = this.document.querySelector("body");
+          }
+          if (compToAdd.position && compToAdd.position === "first") {
+            elParent.insertBefore(newEl, elParent.firstChild);
+          } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {
+            elParent.insertBefore(newEl, elParent.children[compToAdd.position]);
+          } else {
+            elParent.appendChild(newEl);
+          }
+          if (compToAdd.components) {
+            this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns);
           }
-          return false;
-        }).catch((err) => {
-          _a.log("warn", "Ui:loadui:catch", "Error. ", err)();
         });
       }
-      // --- end of loadui
-      // Namespaces - See https://stackoverflow.com/a/52572048/1309986
-      // const NAMESPACES = {
-      //     svg: 'http://www.w3.org/2000/svg',
-      //     html: 'http://www.w3.org/1999/xhtml',
-      //     xml: 'http://www.w3.org/XML/1998/namespace',
-      //     xlink: 'http://www.w3.org/1999/xlink',
-      //     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...
-      // }
+      // --- end of _uiAdd ---
       /** Enhance an HTML element that is being composed with ui data
        *  such as ID, attribs, event handlers, custom props, etc.
        * @param {*} el HTML Element to enhance
@@ -359,6 +163,8 @@ var require_ui = __commonJS({
       _uiComposeComponent(el, comp) {
         if (comp.attributes) {
           Object.keys(comp.attributes).forEach((attrib) => {
+            if (attrib === "class" && Array.isArray(comp.attributes[attrib]))
+              comp.attributes[attrib].join(" ");
             if (attrib === "value")
               el.value = comp.attributes[attrib];
             if (attrib.startsWith("xlink:"))
@@ -433,81 +239,111 @@ var require_ui = __commonJS({
           }
         });
       }
-      // Vue dynamic inserts Don't really work ...
-      // _uiAddVue(ui, isRecurse) {
-      //     // must be Vue
-      //     // must have only 1 root element
-      //     const compToAdd = ui.components[0]
-      //     const newEl = this.document.createElement(compToAdd.type)
-      //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload
-      //     this._uiComposeComponent(newEl, compToAdd)
-      //     // If nested components, go again - but don't pass payload to sub-components
-      //     if (compToAdd.components) {
-      //         this._uiExtendEl(newEl, compToAdd.components)
-      //     }
-      //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()
-      //     this.set('magick', newEl.outerHTML)
-      //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)
-      //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)
-      // }
-      // TODO Add check if ID already exists
-      // TODO Allow single add without using components array
-      /** Handle incoming msg._ui add requests
+      // TODO Add more error handling and parameter validation
+      /** Handle incoming _ui load requests
+       * Can load JavaScript modules, JavaScript scripts and CSS.
        * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object
-       * @param {boolean} isRecurse Is this a recursive call?
        */
-      _uiAdd(ui, isRecurse) {
-        _a.log("trace", "Ui:_uiManager:add", "Starting _uiAdd")();
-        ui.components.forEach((compToAdd, i) => {
-          _a.log("trace", `Ui:_uiAdd:components-forEach:${i}`, "Component to add: ", compToAdd)();
-          let newEl;
-          switch (compToAdd.type) {
-            case "html": {
-              compToAdd.ns = "html";
-              newEl = this.document.createElement("div");
+      _uiLoad(ui) {
+        if (ui.components) {
+          if (!Array.isArray(ui.components))
+            ui.components = [ui.components];
+          ui.components.forEach(async (component) => {
+            await import(component);
+          });
+        }
+        if (ui.srcScripts) {
+          if (!Array.isArray(ui.srcScripts))
+            ui.srcScripts = [ui.srcScripts];
+          ui.srcScripts.forEach((script) => {
+            this.loadScriptSrc(script);
+          });
+        }
+        if (ui.txtScripts) {
+          if (!Array.isArray(ui.txtScripts))
+            ui.txtScripts = [ui.txtScripts];
+          this.loadScriptTxt(ui.txtScripts.join("\n"));
+        }
+        if (ui.srcStyles) {
+          if (!Array.isArray(ui.srcStyles))
+            ui.srcStyles = [ui.srcStyles];
+          ui.srcStyles.forEach((sheet) => {
+            this.loadStyleSrc(sheet);
+          });
+        }
+        if (ui.txtStyles) {
+          if (!Array.isArray(ui.txtStyles))
+            ui.txtStyles = [ui.txtStyles];
+          this.loadStyleTxt(ui.txtStyles.join("\n"));
+        }
+      }
+      // --- end of _uiLoad ---
+      /** Handle incoming _ui messages and loaded UI JSON files
+       * Called from start()
+       * @param {*} msg Standardised msg object containing a _ui property object
+       */
+      _uiManager(msg) {
+        if (!msg._ui)
+          return;
+        if (!Array.isArray(msg._ui))
+          msg._ui = [msg._ui];
+        msg._ui.forEach((ui, i) => {
+          if (!ui.method) {
+            _a.log("error", "Ui:_uiManager", `No method defined for msg._ui[${i}]. Ignoring`)();
+            return;
+          }
+          ui.payload = msg.payload;
+          ui.topic = msg.topic;
+          switch (ui.method) {
+            case "add": {
+              this._uiAdd(ui, false);
               break;
             }
-            case "svg": {
-              compToAdd.ns = "svg";
-              newEl = this.document.createElementNS("http://www.w3.org/2000/svg", "svg");
+            case "remove": {
+              this._uiRemove(ui, false);
+              break;
+            }
+            case "removeAll": {
+              this._uiRemove(ui, true);
+              break;
+            }
+            case "replace": {
+              this._uiReplace(ui);
+              break;
+            }
+            case "update": {
+              this._uiUpdate(ui);
+              break;
+            }
+            case "load": {
+              this._uiLoad(ui);
+              break;
+            }
+            case "reload": {
+              this._uiReload();
+              break;
+            }
+            case "notify": {
+              this.showDialog("notify", ui, msg);
+              break;
+            }
+            case "alert": {
+              this.showDialog("alert", ui, msg);
               break;
             }
             default: {
-              compToAdd.ns = "dom";
-              newEl = this.document.createElement(compToAdd.type);
+              _a.log("error", "Ui:_uiManager", `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)();
               break;
             }
           }
-          if (!compToAdd.slot && ui.payload)
-            compToAdd.slot = ui.payload;
-          this._uiComposeComponent(newEl, compToAdd);
-          let elParent;
-          if (compToAdd.parentEl) {
-            elParent = compToAdd.parentEl;
-          } else if (ui.parentEl) {
-            elParent = ui.parentEl;
-          } else if (compToAdd.parent) {
-            elParent = this.document.querySelector(compToAdd.parent);
-          } else if (ui.parent) {
-            elParent = this.document.querySelector(ui.parent);
-          }
-          if (!elParent) {
-            _a.log("info", "Ui:_uiAdd", "No parent found, adding to body")();
-            elParent = this.document.querySelector("body");
-          }
-          if (compToAdd.position && compToAdd.position === "first") {
-            elParent.insertBefore(newEl, elParent.firstChild);
-          } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {
-            elParent.insertBefore(newEl, elParent.children[compToAdd.position]);
-          } else {
-            elParent.appendChild(newEl);
-          }
-          if (compToAdd.components) {
-            this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns);
-          }
         });
       }
-      // --- end of _uiAdd ---
+      // --- end of _uiManager ---
+      /** Handle a reload request */
+      _uiReload() {
+        _a.log("trace", "Ui:uiManager:reload", "reloading")();
+        location.reload();
+      }
       // TODO Add better tests for failures (see comments)
       /** Handle incoming _ui remove requests
        * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object
@@ -624,182 +460,463 @@ var require_ui = __commonJS({
         });
       }
       // --- end of _uiUpdate ---
-      // TODO Add more error handling and parameter validation
-      /** Handle incoming _ui load requests
-       * Can load JavaScript modules, JavaScript scripts and CSS.
-       * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object
+      //#endregion ---- -------- ----
+      //#region ---- External Methods ----
+      /** Converts markdown text input to HTML if the Markdown-IT library is loaded
+       * Otherwise simply returns the text
+       * @param {string} mdText The input markdown string
+       * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text
        */
-      _uiLoad(ui) {
-        if (ui.components) {
-          if (!Array.isArray(ui.components))
-            ui.components = [ui.components];
-          ui.components.forEach(async (component) => {
-            await import(component);
-          });
-        }
-        if (ui.srcScripts) {
-          if (!Array.isArray(ui.srcScripts))
-            ui.srcScripts = [ui.srcScripts];
-          ui.srcScripts.forEach((script) => {
-            this.loadScriptSrc(script);
-          });
-        }
-        if (ui.txtScripts) {
-          if (!Array.isArray(ui.txtScripts))
-            ui.txtScripts = [ui.txtScripts];
-          this.loadScriptTxt(ui.txtScripts.join("\n"));
-        }
-        if (ui.srcStyles) {
-          if (!Array.isArray(ui.srcStyles))
-            ui.srcStyles = [ui.srcStyles];
-          ui.srcStyles.forEach((sheet) => {
-            this.loadStyleSrc(sheet);
-          });
+      convertMarkdown(mdText) {
+        if (!mdText)
+          return "";
+        if (!this.window["markdownit"])
+          return mdText;
+        const opts = {
+          // eslint-disable-line object-shorthand
+          html: true,
+          linkify: true,
+          _highlight: true,
+          langPrefix: "language-",
+          highlight(str, lang) {
+            if (lang && this.window["hljs"] && this.window["hljs"].getLanguage(lang)) {
+              try {
+                return `<pre class="highlight" data-language="${lang.toUpperCase()}">
+                                <code class="language-${lang}">${this.window["hljs"].highlightAuto(str).value}</code></pre>`;
+              } finally {
+              }
+            }
+            return `<pre class="highlight"><code>${md.utils.escapeHtml(str)}</code></pre>`;
+          }
+        };
+        const md = this.window["markdownit"](opts);
+        return md.render(mdText);
+      }
+      /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API
+       * Wraps the included object in a div tag.
+       * PDF's, text or unknown MIME types are also wrapped in an iFrame.
+       * @param {string} url The URL of the source file to include
+       * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id
+       * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag
+       * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')
+       * @returns {Promise<any>} Status
+       */
+      async include(url, uiOptions) {
+        if (!fetch) {
+          _a.log(0, "Ui:include", "Current environment does not include `fetch`, skipping.")();
+          return "Current environment does not include `fetch`, skipping.";
         }
-        if (ui.txtStyles) {
-          if (!Array.isArray(ui.txtStyles))
-            ui.txtStyles = [ui.txtStyles];
-          this.loadStyleTxt(ui.txtStyles.join("\n"));
+        if (!url) {
+          _a.log(0, "Ui:include", "url parameter must be provided, skipping.")();
+          return "url parameter must be provided, skipping.";
+        }
+        if (!uiOptions || !uiOptions.id) {
+          _a.log(0, "Ui:include", "uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.")();
+          return "uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.";
+        }
+        let response;
+        try {
+          response = await fetch(url);
+        } catch (error) {
+          _a.log(0, "Ui:include", `Fetch of file '${url}' failed. `, error.message)();
+          return error.message;
+        }
+        if (!response.ok) {
+          _a.log(0, "Ui:include", `Fetch of file '${url}' failed. Status='${response.statusText}'`)();
+          return response.statusText;
+        }
+        const contentType = await response.headers.get("content-type");
+        let type = null;
+        if (contentType) {
+          if (contentType.includes("text/html")) {
+            type = "html";
+          } else if (contentType.includes("application/json")) {
+            type = "json";
+          } else if (contentType.includes("multipart/form-data")) {
+            type = "form";
+          } else if (contentType.includes("image/")) {
+            type = "image";
+          } else if (contentType.includes("video/")) {
+            type = "video";
+          } else if (contentType.includes("application/pdf")) {
+            type = "pdf";
+          } else if (contentType.includes("text/plain")) {
+            type = "text";
+          }
+        }
+        let slot = "";
+        let txtReturn = "Include successful";
+        let data;
+        switch (type) {
+          case "html": {
+            data = await response.text();
+            slot = data;
+            break;
+          }
+          case "json": {
+            data = await response.json();
+            slot = '<pre class="syntax-highlight">';
+            slot += this.syntaxHighlight(data);
+            slot += "</pre>";
+            break;
+          }
+          case "form": {
+            data = await response.formData();
+            slot = '<pre class="syntax-highlight">';
+            slot += this.syntaxHighlight(data);
+            slot += "</pre>";
+            break;
+          }
+          case "image": {
+            data = await response.blob();
+            slot = `<img src="${URL.createObjectURL(data)}">`;
+            if (this.window["DOMPurify"]) {
+              txtReturn = "Include successful. BUT DOMPurify loaded which may block its use.";
+              _a.log("warn", "Ui:include:image", txtReturn)();
+            }
+            break;
+          }
+          case "video": {
+            data = await response.blob();
+            slot = `<video controls autoplay><source src="${URL.createObjectURL(data)}"></video>`;
+            if (this.window["DOMPurify"]) {
+              txtReturn = "Include successful. BUT DOMPurify loaded which may block its use.";
+              _a.log("warn", "Ui:include:video", txtReturn)();
+            }
+            break;
+          }
+          case "pdf":
+          case "text":
+          default: {
+            data = await response.blob();
+            slot = `<iframe style="resize:both;width:inherit;height:inherit;" src="${URL.createObjectURL(data)}">`;
+            if (this.window["DOMPurify"]) {
+              txtReturn = "Include successful. BUT DOMPurify loaded which may block its use.";
+              _a.log("warn", `Ui:include:${type}`, txtReturn)();
+            }
+            break;
+          }
         }
+        uiOptions.type = "div";
+        uiOptions.slot = slot;
+        if (!uiOptions.parent)
+          uiOptions.parent = "body";
+        if (!uiOptions.attributes)
+          uiOptions.attributes = { class: "included" };
+        this._uiReplace({
+          components: [
+            uiOptions
+          ]
+        });
+        _a.log("trace", `Ui:include:${type}`, txtReturn)();
+        return txtReturn;
       }
-      // --- end of _uiLoad ---
-      /** Handle a reload request */
-      _uiReload() {
-        _a.log("trace", "Ui:uiManager:reload", "reloading")();
-        location.reload();
+      // ---- End of include() ---- //
+      /** Attach a new remote script to the end of HEAD synchronously
+       * NOTE: It takes too long for most scripts to finish loading
+       *       so this is pretty useless to work with the dynamic UI features directly.
+       * @param {string} url The url to be used in the script src attribute
+       */
+      loadScriptSrc(url) {
+        const newScript = this.document.createElement("script");
+        newScript.src = url;
+        newScript.async = false;
+        this.document.head.appendChild(newScript);
       }
-      /** Handle incoming _ui messages and loaded UI JSON files
-       * Called from start()
-       * @param {*} msg Standardised msg object containing a _ui property object
+      /** Attach a new text script to the end of HEAD synchronously
+       * NOTE: It takes too long for most scripts to finish loading
+       *       so this is pretty useless to work with the dynamic UI features directly.
+       * @param {string} textFn The text to be loaded as a script
        */
-      _uiManager(msg) {
-        if (!msg._ui)
+      loadScriptTxt(textFn) {
+        const newScript = this.document.createElement("script");
+        newScript.async = false;
+        newScript.textContent = textFn;
+        this.document.head.appendChild(newScript);
+      }
+      /** Attach a new remote stylesheet link to the end of HEAD synchronously
+       * NOTE: It takes too long for most scripts to finish loading
+       *       so this is pretty useless to work with the dynamic UI features directly.
+       * @param {string} url The url to be used in the style link href attribute
+       */
+      loadStyleSrc(url) {
+        const newStyle = this.document.createElement("link");
+        newStyle.href = url;
+        newStyle.rel = "stylesheet";
+        newStyle.type = "text/css";
+        this.document.head.appendChild(newStyle);
+      }
+      /** Attach a new text stylesheet to the end of HEAD synchronously
+       * NOTE: It takes too long for most scripts to finish loading
+       *       so this is pretty useless to work with the dynamic UI features directly.
+       * @param {string} textFn The text to be loaded as a stylesheet
+       */
+      loadStyleTxt(textFn) {
+        const newStyle = this.document.createElement("style");
+        newStyle.textContent = textFn;
+        this.document.head.appendChild(newStyle);
+      }
+      /** Load a dynamic UI from a JSON web reponse
+       * @param {string} url URL that will return the ui JSON
+       */
+      loadui(url) {
+        if (!fetch) {
+          _a.log(0, "Ui:loadui", "Current environment does not include `fetch`, skipping.")();
           return;
-        if (!Array.isArray(msg._ui))
-          msg._ui = [msg._ui];
-        msg._ui.forEach((ui, i) => {
-          if (!ui.method) {
-            _a.log("error", "Ui:_uiManager", `No method defined for msg._ui[${i}]. Ignoring`)();
-            return;
+        }
+        if (!url) {
+          _a.log(0, "Ui:loadui", "url parameter must be provided, skipping.")();
+          return;
+        }
+        fetch(url).then((response) => {
+          if (response.ok === false) {
+            throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`);
           }
-          ui.payload = msg.payload;
-          ui.topic = msg.topic;
-          switch (ui.method) {
-            case "add": {
-              this._uiAdd(ui, false);
-              break;
-            }
-            case "remove": {
-              this._uiRemove(ui, false);
-              break;
-            }
-            case "removeAll": {
-              this._uiRemove(ui, true);
-              break;
-            }
-            case "replace": {
-              this._uiReplace(ui);
-              break;
-            }
-            case "update": {
-              this._uiUpdate(ui);
-              break;
-            }
-            case "load": {
-              this._uiLoad(ui);
-              break;
-            }
-            case "reload": {
-              this._uiReload();
-              break;
-            }
-            case "notify": {
-              this.showDialog("notify", ui, msg);
-              break;
-            }
-            case "alert": {
-              this.showDialog("alert", ui, msg);
-              break;
-            }
-            default: {
-              _a.log("error", "Ui:_uiManager", `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)();
-              break;
-            }
+          _a.log("trace", "Ui:loadui:then1", `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)();
+          const contentType = response.headers.get("content-type");
+          if (!contentType || !contentType.includes("application/json")) {
+            throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`);
+          }
+          return response.json();
+        }).then((data) => {
+          if (data !== void 0) {
+            _a.log("trace", "Ui:loadui:then2", "Parsed JSON successfully obtained")();
+            this._uiManager({ _ui: data });
+            return true;
           }
+          return false;
+        }).catch((err) => {
+          _a.log("warn", "Ui:loadui:catch", "Error. ", err)();
         });
       }
-      // --- end of _uiManager ---
+      // --- end of loadui
       /** Get standard data from a DOM node.
        * @param {*} node DOM node to examine
        * @param {string} cssSelector Identify the DOM element to get data from
        * @returns {object} Standardised data object
        */
-      nodeGet(node, cssSelector) {
-        const thisOut = {
-          id: node.id === "" ? void 0 : node.id,
-          name: node.name,
-          children: node.childNodes.length,
-          type: node.nodeName,
-          attributes: void 0,
-          isUserInput: node.validity ? true : false,
-          // eslint-disable-line no-unneeded-ternary
-          userInput: !node.validity ? void 0 : {
-            // eslint-disable-line multiline-ternary
-            value: node.value,
-            validity: void 0,
-            willValidate: node.willValidate,
-            valueAsDate: node.valueAsDate,
-            valueAsNumber: node.valueAsNumber,
-            type: node.type
-          }
-        };
-        if (["UL", "OL"].includes(node.nodeName)) {
-          const listEntries = this.document.querySelectorAll(`${cssSelector} li`);
-          if (listEntries) {
-            thisOut.list = {
-              "entries": listEntries.length
-            };
-          }
-        }
-        if (node.nodeName === "DL") {
-          const listEntries = this.document.querySelectorAll(`${cssSelector} dt`);
-          if (listEntries) {
-            thisOut.list = {
-              "entries": listEntries.length
-            };
-          }
+      nodeGet(node, cssSelector) {
+        const thisOut = {
+          id: node.id === "" ? void 0 : node.id,
+          name: node.name,
+          children: node.childNodes.length,
+          type: node.nodeName,
+          attributes: void 0,
+          isUserInput: node.validity ? true : false,
+          // eslint-disable-line no-unneeded-ternary
+          userInput: !node.validity ? void 0 : {
+            // eslint-disable-line multiline-ternary
+            value: node.value,
+            validity: void 0,
+            willValidate: node.willValidate,
+            valueAsDate: node.valueAsDate,
+            valueAsNumber: node.valueAsNumber,
+            type: node.type
+          }
+        };
+        if (["UL", "OL"].includes(node.nodeName)) {
+          const listEntries = this.document.querySelectorAll(`${cssSelector} li`);
+          if (listEntries) {
+            thisOut.list = {
+              "entries": listEntries.length
+            };
+          }
+        }
+        if (node.nodeName === "DL") {
+          const listEntries = this.document.querySelectorAll(`${cssSelector} dt`);
+          if (listEntries) {
+            thisOut.list = {
+              "entries": listEntries.length
+            };
+          }
+        }
+        if (node.nodeName === "TABLE") {
+          const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`);
+          const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`);
+          const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`);
+          if (bodyEntries || headEntries || cols) {
+            thisOut.table = {
+              "headRows": headEntries ? headEntries.length : 0,
+              "bodyRows": bodyEntries ? bodyEntries.length : 0,
+              "columns": cols ? cols.length : 0
+            };
+          }
+        }
+        if (node.nodeName !== "#text" && node.attributes && node.attributes.length > 0) {
+          thisOut.attributes = {};
+          for (const attrib of node.attributes) {
+            if (attrib.name !== "id") {
+              thisOut.attributes[attrib.name] = node.attributes[attrib.name].value;
+            }
+          }
+        }
+        if (node.nodeName === "#text") {
+          thisOut.text = node.textContent;
+        }
+        if (node.validity)
+          thisOut.userInput.validity = {};
+        for (const v in node.validity) {
+          thisOut.userInput.validity[v] = node.validity[v];
+        }
+        return thisOut;
+      }
+      // --- end of nodeGet --- //
+      /** Show a browser notification if possible. Returns a promise
+       * Config can be a simple string, a Node-RED msg (topic as title, payload as body)
+       * or a Notifications API options object + config.title string.
+       * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification
+       * @param {object|string} config Notification config object or simple message string
+       * @returns {Promise} Resolves on close or click event, returns the event.
+       */
+      async notification(config) {
+        if (typeof config === "string") {
+          config = { body: config };
+        }
+        if (typeof Notification === "undefined")
+          return Promise.reject(new Error("Notifications not available in this browser"));
+        let permit = Notification.permission;
+        if (permit === "denied") {
+          return Promise.reject(new Error("Notifications not permitted by user"));
+        } else if (permit === "granted") {
+          return this._showNotification(config);
+        } else {
+          permit = await Notification.requestPermission();
+          if (permit === "granted") {
+            return this._showNotification(config);
+          }
+          return Promise.reject(new Error("Notifications not permitted by user"));
+        }
+      }
+      // TODO Add multi-slot
+      /** Replace or add an HTML element's slot from text or an HTML string
+       * Will use DOMPurify if that library has been loaded to window.
+       * param {*} ui Single entry from the msg._ui property
+       * @param {Element} el Reference to the element that we want to update
+       * @param {*} component The component we are trying to add/replace
+       */
+      replaceSlot(el, component) {
+        if (!component.slot)
+          return;
+        if (!el)
+          return;
+        if (this.window["DOMPurify"])
+          component.slot = this.window["DOMPurify"].sanitize(component.slot);
+        el.innerHTML = component.slot;
+      }
+      /** Replace or add an HTML element's slot from a Markdown string
+       * Only does something if the markdownit library has been loaded to window.
+       * Will use DOMPurify if that library has been loaded to window.
+       * @param {Element} el Reference to the element that we want to update
+       * @param {*} component The component we are trying to add/replace
+       */
+      replaceSlotMarkdown(el, component) {
+        if (!el)
+          return;
+        if (!component.slotMarkdown)
+          return;
+        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown);
+        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown);
+        el.innerHTML = component.slotMarkdown;
+      }
+      /** Sanitise HTML to make it safe - if the DOMPurify library is loaded
+       * Otherwise just returns that HTML as-is.
+       * @param {string} html The input HTML string
+       * @returns {string} The sanitised HTML or the original if DOMPurify not loaded
+       */
+      sanitiseHTML(html) {
+        if (!this.window["DOMPurify"])
+          return html;
+        return this.window["DOMPurify"].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs });
+      }
+      /** Show a pop-over "toast" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen
+       * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,
+       *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,
+       *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/
+       * @param {"notify"|"alert"} type Dialog type
+       * @param {object} ui standardised ui data
+       * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.
+       * @returns {void}
+       */
+      showDialog(type, ui, msg) {
+        let content = "";
+        if (msg.payload && typeof msg.payload === "string")
+          content += msg.payload;
+        if (ui.content)
+          content += ui.content;
+        if (content === "") {
+          _a.log(1, "Ui:showDialog", "Toast content is blank. Not shown.")();
+          return;
         }
-        if (node.nodeName === "TABLE") {
-          const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`);
-          const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`);
-          const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`);
-          if (bodyEntries || headEntries || cols) {
-            thisOut.table = {
-              "headRows": headEntries ? headEntries.length : 0,
-              "bodyRows": bodyEntries ? bodyEntries.length : 0,
-              "columns": cols ? cols.length : 0
-            };
-          }
+        if (!ui.title && msg.topic)
+          ui.title = msg.topic;
+        if (ui.title)
+          content = `<p class="toast-head">${ui.title}</p><p>${content}</p>`;
+        if (ui.noAutohide)
+          ui.noAutoHide = ui.noAutohide;
+        if (ui.noAutoHide)
+          ui.autohide = !ui.noAutoHide;
+        if (ui.autoHideDelay) {
+          if (!ui.autohide)
+            ui.autohide = true;
+          ui.delay = ui.autoHideDelay;
+        } else
+          ui.autoHideDelay = 1e4;
+        if (!Object.prototype.hasOwnProperty.call(ui, "autohide"))
+          ui.autohide = true;
+        if (type === "alert") {
+          ui.modal = true;
+          ui.autohide = false;
+          content = `<svg viewBox="0 0 192.146 192.146" style="width:30;background-color:transparent;"><path d="M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z" /></svg> ${content}`;
         }
-        if (node.nodeName !== "#text" && node.attributes && node.attributes.length > 0) {
-          thisOut.attributes = {};
-          for (const attrib of node.attributes) {
-            if (attrib.name !== "id") {
-              thisOut.attributes[attrib.name] = node.attributes[attrib.name].value;
-            }
-          }
+        let toaster = this.document.getElementById("toaster");
+        if (toaster === null) {
+          toaster = this.document.createElement("div");
+          toaster.id = "toaster";
+          toaster.title = "Click to clear all notifcations";
+          toaster.setAttribute("class", "toaster");
+          toaster.setAttribute("role", "dialog");
+          toaster.setAttribute("arial-label", "Toast message");
+          toaster.onclick = function() {
+            toaster.remove();
+          };
+          this.document.body.insertAdjacentElement("afterbegin", toaster);
         }
-        if (node.nodeName === "#text") {
-          thisOut.text = node.textContent;
+        const toast = this.document.createElement("div");
+        toast.title = "Click to clear this notifcation";
+        toast.setAttribute("class", `toast ${ui.variant ? ui.variant : ""} ${type}`);
+        toast.innerHTML = content;
+        toast.setAttribute("role", "alertdialog");
+        if (ui.modal)
+          toast.setAttribute("aria-modal", ui.modal);
+        toast.onclick = function(evt) {
+          evt.stopPropagation();
+          toast.remove();
+          if (toaster.childElementCount < 1)
+            toaster.remove();
+        };
+        if (type === "alert") {
         }
-        if (node.validity)
-          thisOut.userInput.validity = {};
-        for (const v in node.validity) {
-          thisOut.userInput.validity[v] = node.validity[v];
+        toaster.insertAdjacentElement(ui.appendToast === true ? "beforeend" : "afterbegin", toast);
+        if (ui.autohide === true) {
+          setInterval(() => {
+            toast.remove();
+            if (toaster.childElementCount < 1)
+              toaster.remove();
+          }, ui.autoHideDelay);
         }
-        return thisOut;
       }
-      // --- end of nodeGet --- //
+      // --- End of showDialog ---
+      /** Directly manage UI via JSON
+       * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions
+       */
+      ui(json) {
+        let msg = {};
+        if (json._ui)
+          msg = json;
+        else
+          msg._ui = json;
+        this._uiManager(msg);
+      }
       /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.
        * @param {string} cssSelector Identify the DOM element to get data from
        * @param {string} [propName] Optional. Specific name of property to get from the element
@@ -851,126 +968,7 @@ var require_ui = __commonJS({
         return out;
       }
       // --- end of uiGet --- //
-      /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API
-       * Wraps the included object in a div tag.
-       * PDF's, text or unknown MIME types are also wrapped in an iFrame.
-       * @param {string} url The URL of the source file to include
-       * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id
-       * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag
-       * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')
-       * @returns {Promise<any>} Status
-       */
-      async include(url, uiOptions) {
-        if (!fetch) {
-          _a.log(0, "Ui:include", "Current environment does not include `fetch`, skipping.")();
-          return "Current environment does not include `fetch`, skipping.";
-        }
-        if (!url) {
-          _a.log(0, "Ui:include", "url parameter must be provided, skipping.")();
-          return "url parameter must be provided, skipping.";
-        }
-        if (!uiOptions || !uiOptions.id) {
-          _a.log(0, "Ui:include", "uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.")();
-          return "uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.";
-        }
-        let response;
-        try {
-          response = await fetch(url);
-        } catch (error) {
-          _a.log(0, "Ui:include", `Fetch of file '${url}' failed. `, error.message)();
-          return error.message;
-        }
-        if (!response.ok) {
-          _a.log(0, "Ui:include", `Fetch of file '${url}' failed. Status='${response.statusText}'`)();
-          return response.statusText;
-        }
-        const contentType = await response.headers.get("content-type");
-        let type = null;
-        if (contentType) {
-          if (contentType.includes("text/html")) {
-            type = "html";
-          } else if (contentType.includes("application/json")) {
-            type = "json";
-          } else if (contentType.includes("multipart/form-data")) {
-            type = "form";
-          } else if (contentType.includes("image/")) {
-            type = "image";
-          } else if (contentType.includes("video/")) {
-            type = "video";
-          } else if (contentType.includes("application/pdf")) {
-            type = "pdf";
-          } else if (contentType.includes("text/plain")) {
-            type = "text";
-          }
-        }
-        let slot = "";
-        let txtReturn = "Include successful";
-        let data;
-        switch (type) {
-          case "html": {
-            data = await response.text();
-            slot = data;
-            break;
-          }
-          case "json": {
-            data = await response.json();
-            slot = '<pre class="syntax-highlight">';
-            slot += this.syntaxHighlight(data);
-            slot += "</pre>";
-            break;
-          }
-          case "form": {
-            data = await response.formData();
-            slot = '<pre class="syntax-highlight">';
-            slot += this.syntaxHighlight(data);
-            slot += "</pre>";
-            break;
-          }
-          case "image": {
-            data = await response.blob();
-            slot = `<img src="${URL.createObjectURL(data)}">`;
-            if (this.window["DOMPurify"]) {
-              txtReturn = "Include successful. BUT DOMPurify loaded which may block its use.";
-              _a.log("warn", "Ui:include:image", txtReturn)();
-            }
-            break;
-          }
-          case "video": {
-            data = await response.blob();
-            slot = `<video controls autoplay><source src="${URL.createObjectURL(data)}"></video>`;
-            if (this.window["DOMPurify"]) {
-              txtReturn = "Include successful. BUT DOMPurify loaded which may block its use.";
-              _a.log("warn", "Ui:include:video", txtReturn)();
-            }
-            break;
-          }
-          case "pdf":
-          case "text":
-          default: {
-            data = await response.blob();
-            slot = `<iframe style="resize:both;width:inherit;height:inherit;" src="${URL.createObjectURL(data)}">`;
-            if (this.window["DOMPurify"]) {
-              txtReturn = "Include successful. BUT DOMPurify loaded which may block its use.";
-              _a.log("warn", `Ui:include:${type}`, txtReturn)();
-            }
-            break;
-          }
-        }
-        uiOptions.type = "div";
-        uiOptions.slot = slot;
-        if (!uiOptions.parent)
-          uiOptions.parent = "body";
-        if (!uiOptions.attributes)
-          uiOptions.attributes = { class: "included" };
-        this._uiReplace({
-          components: [
-            uiOptions
-          ]
-        });
-        _a.log("trace", `Ui:include:${type}`, txtReturn)();
-        return txtReturn;
-      }
-      // ---- End of include() ---- //
+      //#endregion ---- -------- ----
     }, /** Log function - passed in constructor or will be a dummy function
      * @type {function}
      */
diff --git a/front-end/ui.esm.min.js b/front-end/ui.esm.min.js
index 4b0d3171..912e78a1 100644
--- a/front-end/ui.esm.min.js
+++ b/front-end/ui.esm.min.js
@@ -1,2 +1,2 @@
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Current environment does not include `window`, UI functions cannot be used.");this.document=this.window.document,t?a.log=t:a.log=function(){return function(){}},i?this.syntaxHighlight=i:this.syntaxHighlight=function(){}}ui(e){let t={};e._ui?t=e:t._ui=e,this._uiManager(t)}replaceSlot(e,t){t.slot&&e&&(this.window.DOMPurify&&(t.slot=this.window.DOMPurify.sanitize(t.slot)),e.innerHTML=t.slot)}convertMarkdown(e){if(!e)return"";if(!this.window.markdownit)return e;let t={html:!0,linkify:!0,_highlight:!0,langPrefix:"language-",highlight(r,n){if(n&&this.window.hljs&&this.window.hljs.getLanguage(n))try{return'<pre class="highlight" data-language="'.concat(n.toUpperCase(),'">\n                                <code class="language-').concat(n,'">').concat(this.window.hljs.highlightAuto(r).value,"</code></pre>")}finally{}return'<pre class="highlight"><code>'.concat(i.utils.escapeHtml(r),"</code></pre>")}},i=this.window.markdownit(t);return i.render(e)}sanitiseHTML(e){return this.window.DOMPurify?this.window.DOMPurify.sanitize(e,{ADD_TAGS:this.sanitiseExtraTags,ADD_ATTR:this.sanitiseExtraAttribs}):e}replaceSlotMarkdown(e,t){e&&t.slotMarkdown&&(t.slotMarkdown=this.convertMarkdown(t.slotMarkdown),t.slotMarkdown=this.sanitiseHTML(t.slotMarkdown),e.innerHTML=t.slotMarkdown)}loadScriptSrc(e){let t=this.document.createElement("script");t.src=e,t.async=!1,this.document.head.appendChild(t)}loadStyleSrc(e){let t=this.document.createElement("link");t.href=e,t.rel="stylesheet",t.type="text/css",this.document.head.appendChild(t)}loadScriptTxt(e){let t=this.document.createElement("script");t.async=!1,t.textContent=e,this.document.head.appendChild(t)}loadStyleTxt(e){let t=this.document.createElement("style");t.textContent=e,this.document.head.appendChild(t)}showDialog(e,t,i){let r="";if(i.payload&&typeof i.payload=="string"&&(r+=i.payload),t.content&&(r+=t.content),r===""){a.log(1,"Ui:showDialog","Toast content is blank. Not shown.")();return}!t.title&&i.topic&&(t.title=i.topic),t.title&&(r='<p class="toast-head">'.concat(t.title,"</p><p>").concat(r,"</p>")),t.noAutohide&&(t.noAutoHide=t.noAutohide),t.noAutoHide&&(t.autohide=!t.noAutoHide),t.autoHideDelay?(t.autohide||(t.autohide=!0),t.delay=t.autoHideDelay):t.autoHideDelay=1e4,Object.prototype.hasOwnProperty.call(t,"autohide")||(t.autohide=!0),e==="alert"&&(t.modal=!0,t.autohide=!1,r='<svg viewBox="0 0 192.146 192.146" style="width:30;background-color:transparent;"><path d="M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z" /></svg> '.concat(r));let n=this.document.getElementById("toaster");n===null&&(n=this.document.createElement("div"),n.id="toaster",n.title="Click to clear all notifcations",n.setAttribute("class","toaster"),n.setAttribute("role","dialog"),n.setAttribute("arial-label","Toast message"),n.onclick=function(){n.remove()},this.document.body.insertAdjacentElement("afterbegin",n));let s=this.document.createElement("div");s.title="Click to clear this notifcation",s.setAttribute("class","toast ".concat(t.variant?t.variant:""," ").concat(e)),s.innerHTML=r,s.setAttribute("role","alertdialog"),t.modal&&s.setAttribute("aria-modal",t.modal),s.onclick=function(c){c.stopPropagation(),s.remove(),n.childElementCount<1&&n.remove()},n.insertAdjacentElement(t.appendToast===!0?"beforeend":"afterbegin",s),t.autohide===!0&&setInterval(()=>{s.remove(),n.childElementCount<1&&n.remove()},t.autoHideDelay)}_showNotification(e){e.topic&&!e.title&&(e.title=e.topic),e.title||(e.title="uibuilder notification"),e.payload&&!e.body&&(e.body=e.payload),e.body||(e.body=" No message given.");try{let t=new Notification(e.title,e);return new Promise((i,r)=>{t.addEventListener("close",n=>{n.currentTarget.userAction="close",i(n)}),t.addEventListener("click",n=>{n.currentTarget.userAction="click",i(n)}),t.addEventListener("error",n=>{n.currentTarget.userAction="error",r(n)})})}catch{return Promise.reject(new Error("Browser refused to create a Notification"))}}async notification(e){if(typeof e=="string"&&(e={body:e}),typeof Notification>"u")return Promise.reject(new Error("Notifications not available in this browser"));let t=Notification.permission;return t==="denied"?Promise.reject(new Error("Notifications not permitted by user")):t==="granted"?this._showNotification(e):(t=await Notification.requestPermission(),t==="granted"?this._showNotification(e):Promise.reject(new Error("Notifications not permitted by user")))}loadui(e){if(!fetch){a.log(0,"Ui:loadui","Current environment does not include `fetch`, skipping.")();return}if(!e){a.log(0,"Ui:loadui","url parameter must be provided, skipping.")();return}fetch(e).then(t=>{if(t.ok===!1)throw new Error("Could not load '".concat(e,"'. Status ").concat(t.status,", Error: ").concat(t.statusText));a.log("trace","Ui:loadui:then1","Loaded '".concat(e,"'. Status ").concat(t.status,", ").concat(t.statusText))();let i=t.headers.get("content-type");if(!i||!i.includes("application/json"))throw new TypeError("Fetch '".concat(e,"' did not return JSON, ignoring"));return t.json()}).then(t=>t!==void 0?(a.log("trace","Ui:loadui:then2","Parsed JSON successfully obtained")(),this._uiManager({_ui:t}),!0):!1).catch(t=>{a.log("warn","Ui:loadui:catch","Error. ",t)()})}_uiComposeComponent(e,t){t.attributes&&Object.keys(t.attributes).forEach(i=>{i==="value"&&(e.value=t.attributes[i]),i.startsWith("xlink:")?e.setAttributeNS("http://www.w3.org/1999/xlink",i,t.attributes[i]):e.setAttribute(i,t.attributes[i])}),t.id&&e.setAttribute("id",t.id),t.type==="svg"&&(e.setAttributeNS("http://www.w3.org/2000/xmlns/","xmlns","http://www.w3.org/2000/svg"),e.setAttributeNS("http://www.w3.org/2000/xmlns/","xmlns:xlink","http://www.w3.org/1999/xlink")),t.events&&Object.keys(t.events).forEach(i=>{i.toLowerCase==="onclick"&&(i="click");try{e.addEventListener(i,r=>{new Function("evt","".concat(t.events[i],"(evt)"))(r)})}catch(r){a.log("error","Ui:_uiComposeComponent","Add event '".concat(i,"' for element '").concat(t.type,"': Cannot add event handler. ").concat(r.message))()}}),t.properties&&Object.keys(t.properties).forEach(i=>{e[i]=t.properties[i]}),t.slot&&this.replaceSlot(e,t),t.slotMarkdown&&this.replaceSlotMarkdown(e,t)}uiEnhanceElement(e,t){this._uiComposeComponent(e,t)}_uiExtendEl(e,t,i=""){t.forEach((r,n)=>{a.log("trace","Ui:_uiExtendEl:components-forEach:".concat(n),r)();let s;r.ns=i,r.ns==="html"?(s=e,e.innerHTML=r.slot):r.ns==="svg"?(s=this.document.createElementNS("http://www.w3.org/2000/svg",r.type),this._uiComposeComponent(s,r),e.appendChild(s)):(s=this.document.createElement(r.type==="html"?"div":r.type),this._uiComposeComponent(s,r),e.appendChild(s)),r.components&&this._uiExtendEl(s,r.components,r.ns)})}_uiAdd(e,t){a.log("trace","Ui:_uiManager:add","Starting _uiAdd")(),e.components.forEach((i,r)=>{a.log("trace","Ui:_uiAdd:components-forEach:".concat(r),"Component to add: ",i)();let n;switch(i.type){case"html":{i.ns="html",n=this.document.createElement("div");break}case"svg":{i.ns="svg",n=this.document.createElementNS("http://www.w3.org/2000/svg","svg");break}default:{i.ns="dom",n=this.document.createElement(i.type);break}}!i.slot&&e.payload&&(i.slot=e.payload),this._uiComposeComponent(n,i);let s;i.parentEl?s=i.parentEl:e.parentEl?s=e.parentEl:i.parent?s=this.document.querySelector(i.parent):e.parent&&(s=this.document.querySelector(e.parent)),s||(a.log("info","Ui:_uiAdd","No parent found, adding to body")(),s=this.document.querySelector("body")),i.position&&i.position==="first"?s.insertBefore(n,s.firstChild):i.position&&Number.isInteger(Number(i.position))?s.insertBefore(n,s.children[i.position]):s.appendChild(n),i.components&&this._uiExtendEl(n,i.components,i.ns)})}_uiRemove(e,t=!1){e.components.forEach(i=>{let r;t!==!0?r=[this.document.querySelector(i)]:r=this.document.querySelectorAll(i),r.forEach(n=>{try{n.remove()}catch(s){a.log("trace","Ui:_uiRemove","Could not remove. ".concat(s.message))()}})})}_uiReplace(e){a.log("trace","Ui:_uiReplace","Starting")(),e.components.forEach((t,i)=>{a.log("trace","Ui:_uiReplace:components-forEach:".concat(i),"Component to replace: ",t)();let r;if(t.id?r=this.document.getElementById(t.id):t.selector||t.select?r=this.document.querySelector(t.selector):t.name?r=this.document.querySelector('[name="'.concat(t.name,'"]')):t.type&&(r=this.document.querySelector(t.type)),a.log("trace","Ui:_uiReplace:components-forEach:".concat(i),"Element to replace: ",r)(),r==null){a.log("trace","Ui:_uiReplace:components-forEach:".concat(i,":noReplace"),"Cannot find the DOM element. Adding instead.",t)(),this._uiAdd({components:[t]},!1);return}let n;switch(t.type){case"html":{t.ns="html",n=this.document.createElement("div");break}case"svg":{t.ns="svg",n=this.document.createElementNS("http://www.w3.org/2000/svg","svg");break}default:{t.ns="dom",n=this.document.createElement(t.type);break}}this._uiComposeComponent(n,t),r.replaceWith(n),t.components&&this._uiExtendEl(n,t.components,t.ns)})}_uiUpdate(e){a.log("trace","Ui:_uiManager:update","Starting _uiUpdate")(),e.components||(e.components=[Object.assign({},e)]),e.components.forEach((t,i)=>{a.log("trace","_uiUpdate:components-forEach","Component #".concat(i),t)();let r;if(t.id?r=this.document.querySelectorAll("#".concat(t.id)):t.selector||t.select?r=this.document.querySelectorAll(t.selector):t.name?r=this.document.querySelectorAll('[name="'.concat(t.name,'"]')):t.type&&(r=this.document.querySelectorAll(t.type)),r===void 0||r.length<1){a.log("warn","Ui:_uiManager:update","Cannot find the DOM element. Ignoring.",t)();return}a.log("trace","_uiUpdate:components-forEach","Element(s) to update. Count: ".concat(r.length),r)(),!t.slot&&t.payload&&(t.slot=t.payload),r.forEach(n=>{this._uiComposeComponent(n,t)}),t.components&&r.forEach(n=>{a.log("trace","_uiUpdate:components","el",n)(),this._uiUpdate({method:e.method,parentEl:n,components:t.components})})})}_uiLoad(e){e.components&&(Array.isArray(e.components)||(e.components=[e.components]),e.components.forEach(async t=>{await Promise.resolve().then(()=>y(f(t)))})),e.srcScripts&&(Array.isArray(e.srcScripts)||(e.srcScripts=[e.srcScripts]),e.srcScripts.forEach(t=>{this.loadScriptSrc(t)})),e.txtScripts&&(Array.isArray(e.txtScripts)||(e.txtScripts=[e.txtScripts]),this.loadScriptTxt(e.txtScripts.join("\n"))),e.srcStyles&&(Array.isArray(e.srcStyles)||(e.srcStyles=[e.srcStyles]),e.srcStyles.forEach(t=>{this.loadStyleSrc(t)})),e.txtStyles&&(Array.isArray(e.txtStyles)||(e.txtStyles=[e.txtStyles]),this.loadStyleTxt(e.txtStyles.join("\n")))}_uiReload(){a.log("trace","Ui:uiManager:reload","reloading")(),location.reload()}_uiManager(e){e._ui&&(Array.isArray(e._ui)||(e._ui=[e._ui]),e._ui.forEach((t,i)=>{if(!t.method){a.log("error","Ui:_uiManager","No method defined for msg._ui[".concat(i,"]. Ignoring"))();return}switch(t.payload=e.payload,t.topic=e.topic,t.method){case"add":{this._uiAdd(t,!1);break}case"remove":{this._uiRemove(t,!1);break}case"removeAll":{this._uiRemove(t,!0);break}case"replace":{this._uiReplace(t);break}case"update":{this._uiUpdate(t);break}case"load":{this._uiLoad(t);break}case"reload":{this._uiReload();break}case"notify":{this.showDialog("notify",t,e);break}case"alert":{this.showDialog("alert",t,e);break}default:{a.log("error","Ui:_uiManager","Invalid msg._ui[".concat(i,"].method (").concat(t.method,"). Ignoring"))();break}}}))}nodeGet(e,t){let i={id:e.id===""?void 0:e.id,name:e.name,children:e.childNodes.length,type:e.nodeName,attributes:void 0,isUserInput:!!e.validity,userInput:e.validity?{value:e.value,validity:void 0,willValidate:e.willValidate,valueAsDate:e.valueAsDate,valueAsNumber:e.valueAsNumber,type:e.type}:void 0};if(["UL","OL"].includes(e.nodeName)){let r=this.document.querySelectorAll("".concat(t," li"));r&&(i.list={entries:r.length})}if(e.nodeName==="DL"){let r=this.document.querySelectorAll("".concat(t," dt"));r&&(i.list={entries:r.length})}if(e.nodeName==="TABLE"){let r=this.document.querySelectorAll("".concat(t," > tbody > tr")),n=this.document.querySelectorAll("".concat(t," > thead > tr")),s=this.document.querySelectorAll("".concat(t," > tbody > tr:last-child > *"));(r||n||s)&&(i.table={headRows:n?n.length:0,bodyRows:r?r.length:0,columns:s?s.length:0})}if(e.nodeName!=="#text"&&e.attributes&&e.attributes.length>0){i.attributes={};for(let r of e.attributes)r.name!=="id"&&(i.attributes[r.name]=e.attributes[r.name].value)}e.nodeName==="#text"&&(i.text=e.textContent),e.validity&&(i.userInput.validity={});for(let r in e.validity)i.userInput.validity[r]=e.validity[r];return i}uiGet(e,t=null){let i=this.document.querySelectorAll(e),r=[];return i.forEach(n=>{if(t!==null&&t!==""){let s=n.getAttribute(t);if(s==null)try{s=n[t]}catch{}if(s==null)t.toLowerCase()==="value"?r.push(n.innerText):r.push("Property '".concat(t,"' not found"));else if(s.constructor.name==="NamedNodeMap"){let c={};for(let o of s)c[o.name]=s[o.name].value;r.push(c)}else if(!s.constructor.name.toLowerCase().includes("map"))r.push({[t]:s});else{let c={};for(let o in s)c[o]=s[o];r.push(c)}}else r.push(this.nodeGet(n,e))}),r}async include(e,t){if(!fetch)return a.log(0,"Ui:include","Current environment does not include `fetch`, skipping.")(),"Current environment does not include `fetch`, skipping.";if(!e)return a.log(0,"Ui:include","url parameter must be provided, skipping.")(),"url parameter must be provided, skipping.";if(!t||!t.id)return a.log(0,"Ui:include","uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.")(),"uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.";let i;try{i=await fetch(e)}catch(h){return a.log(0,"Ui:include","Fetch of file '".concat(e,"' failed. "),h.message)(),h.message}if(!i.ok)return a.log(0,"Ui:include","Fetch of file '".concat(e,"' failed. Status='").concat(i.statusText,"'"))(),i.statusText;let r=await i.headers.get("content-type"),n=null;r&&(r.includes("text/html")?n="html":r.includes("application/json")?n="json":r.includes("multipart/form-data")?n="form":r.includes("image/")?n="image":r.includes("video/")?n="video":r.includes("application/pdf")?n="pdf":r.includes("text/plain")&&(n="text"));let s="",c="Include successful",o;switch(n){case"html":{o=await i.text(),s=o;break}case"json":{o=await i.json(),s='<pre class="syntax-highlight">',s+=this.syntaxHighlight(o),s+="</pre>";break}case"form":{o=await i.formData(),s='<pre class="syntax-highlight">',s+=this.syntaxHighlight(o),s+="</pre>";break}case"image":{o=await i.blob(),s='<img src="'.concat(URL.createObjectURL(o),'">'),this.window.DOMPurify&&(c="Include successful. BUT DOMPurify loaded which may block its use.",a.log("warn","Ui:include:image",c)());break}case"video":{o=await i.blob(),s='<video controls autoplay><source src="'.concat(URL.createObjectURL(o),'"></video>'),this.window.DOMPurify&&(c="Include successful. BUT DOMPurify loaded which may block its use.",a.log("warn","Ui:include:video",c)());break}case"pdf":case"text":default:{o=await i.blob(),s='<iframe style="resize:both;width:inherit;height:inherit;" src="'.concat(URL.createObjectURL(o),'">'),this.window.DOMPurify&&(c="Include successful. BUT DOMPurify loaded which may block its use.",a.log("warn","Ui:include:".concat(n),c)());break}}return t.type="div",t.slot=s,t.parent||(t.parent="body"),t.attributes||(t.attributes={class:"included"}),this._uiReplace({components:[t]}),a.log("trace","Ui:include:".concat(n),c)(),c}},u(a,"log"),a);w.exports=x});export default C();
+var g=Object.create;var d=Object.defineProperty;var m=Object.getOwnPropertyDescriptor;var p=Object.getOwnPropertyNames;var b=Object.getPrototypeOf,v=Object.prototype.hasOwnProperty;var E=(l,e,t)=>e in l?d(l,e,{enumerable:!0,configurable:!0,writable:!0,value:t}):l[e]=t;var f=(l=>typeof require<"u"?require:typeof Proxy<"u"?new Proxy(l,{get:(e,t)=>(typeof require<"u"?require:e)[t]}):l)(function(l){if(typeof require<"u")return require.apply(this,arguments);throw Error('Dynamic require of "'+l+'" is not supported')});var S=(l,e)=>()=>(e||l((e={exports:{}}).exports,e),e.exports);var k=(l,e,t,i)=>{if(e&&typeof e=="object"||typeof e=="function")for(let r of p(e))!v.call(l,r)&&r!==t&&d(l,r,{get:()=>e[r],enumerable:!(i=m(e,r))||i.enumerable});return l};var y=(l,e,t)=>(t=l!=null?g(b(l)):{},k(e||!l||!l.__esModule?d(t,"default",{value:l,enumerable:!0}):t,l));var u=(l,e,t)=>(E(l,typeof e!="symbol"?e+"":e,t),t);var C=S((M,w)=>{var a,x=(a=class{constructor(e,t,i){u(this,"version","6.8.0-esm.min");u(this,"sanitiseExtraTags",["uib-var"]);u(this,"sanitiseExtraAttribs",["variable","report","undefined"]);u(this,"window");if(e)this.window=e;else throw new Error("Ui:constructor. Current environment does not include `window`, UI functions cannot be used.");this.document=this.window.document,t?a.log=t:a.log=function(){return function(){}},i?this.syntaxHighlight=i:this.syntaxHighlight=function(){}}_showNotification(e){e.topic&&!e.title&&(e.title=e.topic),e.title||(e.title="uibuilder notification"),e.payload&&!e.body&&(e.body=e.payload),e.body||(e.body=" No message given.");try{let t=new Notification(e.title,e);return new Promise((i,r)=>{t.addEventListener("close",n=>{n.currentTarget.userAction="close",i(n)}),t.addEventListener("click",n=>{n.currentTarget.userAction="click",i(n)}),t.addEventListener("error",n=>{n.currentTarget.userAction="error",r(n)})})}catch{return Promise.reject(new Error("Browser refused to create a Notification"))}}_uiAdd(e,t){a.log("trace","Ui:_uiManager:add","Starting _uiAdd")(),e.components.forEach((i,r)=>{a.log("trace","Ui:_uiAdd:components-forEach:".concat(r),"Component to add: ",i)();let n;switch(i.type){case"html":{i.ns="html",n=this.document.createElement("div");break}case"svg":{i.ns="svg",n=this.document.createElementNS("http://www.w3.org/2000/svg","svg");break}default:{i.ns="dom",n=this.document.createElement(i.type);break}}!i.slot&&e.payload&&(i.slot=e.payload),this._uiComposeComponent(n,i);let s;i.parentEl?s=i.parentEl:e.parentEl?s=e.parentEl:i.parent?s=this.document.querySelector(i.parent):e.parent&&(s=this.document.querySelector(e.parent)),s||(a.log("info","Ui:_uiAdd","No parent found, adding to body")(),s=this.document.querySelector("body")),i.position&&i.position==="first"?s.insertBefore(n,s.firstChild):i.position&&Number.isInteger(Number(i.position))?s.insertBefore(n,s.children[i.position]):s.appendChild(n),i.components&&this._uiExtendEl(n,i.components,i.ns)})}_uiComposeComponent(e,t){t.attributes&&Object.keys(t.attributes).forEach(i=>{i==="class"&&Array.isArray(t.attributes[i])&&t.attributes[i].join(" "),i==="value"&&(e.value=t.attributes[i]),i.startsWith("xlink:")?e.setAttributeNS("http://www.w3.org/1999/xlink",i,t.attributes[i]):e.setAttribute(i,t.attributes[i])}),t.id&&e.setAttribute("id",t.id),t.type==="svg"&&(e.setAttributeNS("http://www.w3.org/2000/xmlns/","xmlns","http://www.w3.org/2000/svg"),e.setAttributeNS("http://www.w3.org/2000/xmlns/","xmlns:xlink","http://www.w3.org/1999/xlink")),t.events&&Object.keys(t.events).forEach(i=>{i.toLowerCase==="onclick"&&(i="click");try{e.addEventListener(i,r=>{new Function("evt","".concat(t.events[i],"(evt)"))(r)})}catch(r){a.log("error","Ui:_uiComposeComponent","Add event '".concat(i,"' for element '").concat(t.type,"': Cannot add event handler. ").concat(r.message))()}}),t.properties&&Object.keys(t.properties).forEach(i=>{e[i]=t.properties[i]}),t.slot&&this.replaceSlot(e,t),t.slotMarkdown&&this.replaceSlotMarkdown(e,t)}uiEnhanceElement(e,t){this._uiComposeComponent(e,t)}_uiExtendEl(e,t,i=""){t.forEach((r,n)=>{a.log("trace","Ui:_uiExtendEl:components-forEach:".concat(n),r)();let s;r.ns=i,r.ns==="html"?(s=e,e.innerHTML=r.slot):r.ns==="svg"?(s=this.document.createElementNS("http://www.w3.org/2000/svg",r.type),this._uiComposeComponent(s,r),e.appendChild(s)):(s=this.document.createElement(r.type==="html"?"div":r.type),this._uiComposeComponent(s,r),e.appendChild(s)),r.components&&this._uiExtendEl(s,r.components,r.ns)})}_uiLoad(e){e.components&&(Array.isArray(e.components)||(e.components=[e.components]),e.components.forEach(async t=>{await Promise.resolve().then(()=>y(f(t)))})),e.srcScripts&&(Array.isArray(e.srcScripts)||(e.srcScripts=[e.srcScripts]),e.srcScripts.forEach(t=>{this.loadScriptSrc(t)})),e.txtScripts&&(Array.isArray(e.txtScripts)||(e.txtScripts=[e.txtScripts]),this.loadScriptTxt(e.txtScripts.join("\n"))),e.srcStyles&&(Array.isArray(e.srcStyles)||(e.srcStyles=[e.srcStyles]),e.srcStyles.forEach(t=>{this.loadStyleSrc(t)})),e.txtStyles&&(Array.isArray(e.txtStyles)||(e.txtStyles=[e.txtStyles]),this.loadStyleTxt(e.txtStyles.join("\n")))}_uiManager(e){e._ui&&(Array.isArray(e._ui)||(e._ui=[e._ui]),e._ui.forEach((t,i)=>{if(!t.method){a.log("error","Ui:_uiManager","No method defined for msg._ui[".concat(i,"]. Ignoring"))();return}switch(t.payload=e.payload,t.topic=e.topic,t.method){case"add":{this._uiAdd(t,!1);break}case"remove":{this._uiRemove(t,!1);break}case"removeAll":{this._uiRemove(t,!0);break}case"replace":{this._uiReplace(t);break}case"update":{this._uiUpdate(t);break}case"load":{this._uiLoad(t);break}case"reload":{this._uiReload();break}case"notify":{this.showDialog("notify",t,e);break}case"alert":{this.showDialog("alert",t,e);break}default:{a.log("error","Ui:_uiManager","Invalid msg._ui[".concat(i,"].method (").concat(t.method,"). Ignoring"))();break}}}))}_uiReload(){a.log("trace","Ui:uiManager:reload","reloading")(),location.reload()}_uiRemove(e,t=!1){e.components.forEach(i=>{let r;t!==!0?r=[this.document.querySelector(i)]:r=this.document.querySelectorAll(i),r.forEach(n=>{try{n.remove()}catch(s){a.log("trace","Ui:_uiRemove","Could not remove. ".concat(s.message))()}})})}_uiReplace(e){a.log("trace","Ui:_uiReplace","Starting")(),e.components.forEach((t,i)=>{a.log("trace","Ui:_uiReplace:components-forEach:".concat(i),"Component to replace: ",t)();let r;if(t.id?r=this.document.getElementById(t.id):t.selector||t.select?r=this.document.querySelector(t.selector):t.name?r=this.document.querySelector('[name="'.concat(t.name,'"]')):t.type&&(r=this.document.querySelector(t.type)),a.log("trace","Ui:_uiReplace:components-forEach:".concat(i),"Element to replace: ",r)(),r==null){a.log("trace","Ui:_uiReplace:components-forEach:".concat(i,":noReplace"),"Cannot find the DOM element. Adding instead.",t)(),this._uiAdd({components:[t]},!1);return}let n;switch(t.type){case"html":{t.ns="html",n=this.document.createElement("div");break}case"svg":{t.ns="svg",n=this.document.createElementNS("http://www.w3.org/2000/svg","svg");break}default:{t.ns="dom",n=this.document.createElement(t.type);break}}this._uiComposeComponent(n,t),r.replaceWith(n),t.components&&this._uiExtendEl(n,t.components,t.ns)})}_uiUpdate(e){a.log("trace","Ui:_uiManager:update","Starting _uiUpdate")(),e.components||(e.components=[Object.assign({},e)]),e.components.forEach((t,i)=>{a.log("trace","_uiUpdate:components-forEach","Component #".concat(i),t)();let r;if(t.id?r=this.document.querySelectorAll("#".concat(t.id)):t.selector||t.select?r=this.document.querySelectorAll(t.selector):t.name?r=this.document.querySelectorAll('[name="'.concat(t.name,'"]')):t.type&&(r=this.document.querySelectorAll(t.type)),r===void 0||r.length<1){a.log("warn","Ui:_uiManager:update","Cannot find the DOM element. Ignoring.",t)();return}a.log("trace","_uiUpdate:components-forEach","Element(s) to update. Count: ".concat(r.length),r)(),!t.slot&&t.payload&&(t.slot=t.payload),r.forEach(n=>{this._uiComposeComponent(n,t)}),t.components&&r.forEach(n=>{a.log("trace","_uiUpdate:components","el",n)(),this._uiUpdate({method:e.method,parentEl:n,components:t.components})})})}convertMarkdown(e){if(!e)return"";if(!this.window.markdownit)return e;let t={html:!0,linkify:!0,_highlight:!0,langPrefix:"language-",highlight(r,n){if(n&&this.window.hljs&&this.window.hljs.getLanguage(n))try{return'<pre class="highlight" data-language="'.concat(n.toUpperCase(),'">\n                                <code class="language-').concat(n,'">').concat(this.window.hljs.highlightAuto(r).value,"</code></pre>")}finally{}return'<pre class="highlight"><code>'.concat(i.utils.escapeHtml(r),"</code></pre>")}},i=this.window.markdownit(t);return i.render(e)}async include(e,t){if(!fetch)return a.log(0,"Ui:include","Current environment does not include `fetch`, skipping.")(),"Current environment does not include `fetch`, skipping.";if(!e)return a.log(0,"Ui:include","url parameter must be provided, skipping.")(),"url parameter must be provided, skipping.";if(!t||!t.id)return a.log(0,"Ui:include","uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.")(),"uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.";let i;try{i=await fetch(e)}catch(h){return a.log(0,"Ui:include","Fetch of file '".concat(e,"' failed. "),h.message)(),h.message}if(!i.ok)return a.log(0,"Ui:include","Fetch of file '".concat(e,"' failed. Status='").concat(i.statusText,"'"))(),i.statusText;let r=await i.headers.get("content-type"),n=null;r&&(r.includes("text/html")?n="html":r.includes("application/json")?n="json":r.includes("multipart/form-data")?n="form":r.includes("image/")?n="image":r.includes("video/")?n="video":r.includes("application/pdf")?n="pdf":r.includes("text/plain")&&(n="text"));let s="",c="Include successful",o;switch(n){case"html":{o=await i.text(),s=o;break}case"json":{o=await i.json(),s='<pre class="syntax-highlight">',s+=this.syntaxHighlight(o),s+="</pre>";break}case"form":{o=await i.formData(),s='<pre class="syntax-highlight">',s+=this.syntaxHighlight(o),s+="</pre>";break}case"image":{o=await i.blob(),s='<img src="'.concat(URL.createObjectURL(o),'">'),this.window.DOMPurify&&(c="Include successful. BUT DOMPurify loaded which may block its use.",a.log("warn","Ui:include:image",c)());break}case"video":{o=await i.blob(),s='<video controls autoplay><source src="'.concat(URL.createObjectURL(o),'"></video>'),this.window.DOMPurify&&(c="Include successful. BUT DOMPurify loaded which may block its use.",a.log("warn","Ui:include:video",c)());break}case"pdf":case"text":default:{o=await i.blob(),s='<iframe style="resize:both;width:inherit;height:inherit;" src="'.concat(URL.createObjectURL(o),'">'),this.window.DOMPurify&&(c="Include successful. BUT DOMPurify loaded which may block its use.",a.log("warn","Ui:include:".concat(n),c)());break}}return t.type="div",t.slot=s,t.parent||(t.parent="body"),t.attributes||(t.attributes={class:"included"}),this._uiReplace({components:[t]}),a.log("trace","Ui:include:".concat(n),c)(),c}loadScriptSrc(e){let t=this.document.createElement("script");t.src=e,t.async=!1,this.document.head.appendChild(t)}loadScriptTxt(e){let t=this.document.createElement("script");t.async=!1,t.textContent=e,this.document.head.appendChild(t)}loadStyleSrc(e){let t=this.document.createElement("link");t.href=e,t.rel="stylesheet",t.type="text/css",this.document.head.appendChild(t)}loadStyleTxt(e){let t=this.document.createElement("style");t.textContent=e,this.document.head.appendChild(t)}loadui(e){if(!fetch){a.log(0,"Ui:loadui","Current environment does not include `fetch`, skipping.")();return}if(!e){a.log(0,"Ui:loadui","url parameter must be provided, skipping.")();return}fetch(e).then(t=>{if(t.ok===!1)throw new Error("Could not load '".concat(e,"'. Status ").concat(t.status,", Error: ").concat(t.statusText));a.log("trace","Ui:loadui:then1","Loaded '".concat(e,"'. Status ").concat(t.status,", ").concat(t.statusText))();let i=t.headers.get("content-type");if(!i||!i.includes("application/json"))throw new TypeError("Fetch '".concat(e,"' did not return JSON, ignoring"));return t.json()}).then(t=>t!==void 0?(a.log("trace","Ui:loadui:then2","Parsed JSON successfully obtained")(),this._uiManager({_ui:t}),!0):!1).catch(t=>{a.log("warn","Ui:loadui:catch","Error. ",t)()})}nodeGet(e,t){let i={id:e.id===""?void 0:e.id,name:e.name,children:e.childNodes.length,type:e.nodeName,attributes:void 0,isUserInput:!!e.validity,userInput:e.validity?{value:e.value,validity:void 0,willValidate:e.willValidate,valueAsDate:e.valueAsDate,valueAsNumber:e.valueAsNumber,type:e.type}:void 0};if(["UL","OL"].includes(e.nodeName)){let r=this.document.querySelectorAll("".concat(t," li"));r&&(i.list={entries:r.length})}if(e.nodeName==="DL"){let r=this.document.querySelectorAll("".concat(t," dt"));r&&(i.list={entries:r.length})}if(e.nodeName==="TABLE"){let r=this.document.querySelectorAll("".concat(t," > tbody > tr")),n=this.document.querySelectorAll("".concat(t," > thead > tr")),s=this.document.querySelectorAll("".concat(t," > tbody > tr:last-child > *"));(r||n||s)&&(i.table={headRows:n?n.length:0,bodyRows:r?r.length:0,columns:s?s.length:0})}if(e.nodeName!=="#text"&&e.attributes&&e.attributes.length>0){i.attributes={};for(let r of e.attributes)r.name!=="id"&&(i.attributes[r.name]=e.attributes[r.name].value)}e.nodeName==="#text"&&(i.text=e.textContent),e.validity&&(i.userInput.validity={});for(let r in e.validity)i.userInput.validity[r]=e.validity[r];return i}async notification(e){if(typeof e=="string"&&(e={body:e}),typeof Notification>"u")return Promise.reject(new Error("Notifications not available in this browser"));let t=Notification.permission;return t==="denied"?Promise.reject(new Error("Notifications not permitted by user")):t==="granted"?this._showNotification(e):(t=await Notification.requestPermission(),t==="granted"?this._showNotification(e):Promise.reject(new Error("Notifications not permitted by user")))}replaceSlot(e,t){t.slot&&e&&(this.window.DOMPurify&&(t.slot=this.window.DOMPurify.sanitize(t.slot)),e.innerHTML=t.slot)}replaceSlotMarkdown(e,t){e&&t.slotMarkdown&&(t.slotMarkdown=this.convertMarkdown(t.slotMarkdown),t.slotMarkdown=this.sanitiseHTML(t.slotMarkdown),e.innerHTML=t.slotMarkdown)}sanitiseHTML(e){return this.window.DOMPurify?this.window.DOMPurify.sanitize(e,{ADD_TAGS:this.sanitiseExtraTags,ADD_ATTR:this.sanitiseExtraAttribs}):e}showDialog(e,t,i){let r="";if(i.payload&&typeof i.payload=="string"&&(r+=i.payload),t.content&&(r+=t.content),r===""){a.log(1,"Ui:showDialog","Toast content is blank. Not shown.")();return}!t.title&&i.topic&&(t.title=i.topic),t.title&&(r='<p class="toast-head">'.concat(t.title,"</p><p>").concat(r,"</p>")),t.noAutohide&&(t.noAutoHide=t.noAutohide),t.noAutoHide&&(t.autohide=!t.noAutoHide),t.autoHideDelay?(t.autohide||(t.autohide=!0),t.delay=t.autoHideDelay):t.autoHideDelay=1e4,Object.prototype.hasOwnProperty.call(t,"autohide")||(t.autohide=!0),e==="alert"&&(t.modal=!0,t.autohide=!1,r='<svg viewBox="0 0 192.146 192.146" style="width:30;background-color:transparent;"><path d="M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z" /></svg> '.concat(r));let n=this.document.getElementById("toaster");n===null&&(n=this.document.createElement("div"),n.id="toaster",n.title="Click to clear all notifcations",n.setAttribute("class","toaster"),n.setAttribute("role","dialog"),n.setAttribute("arial-label","Toast message"),n.onclick=function(){n.remove()},this.document.body.insertAdjacentElement("afterbegin",n));let s=this.document.createElement("div");s.title="Click to clear this notifcation",s.setAttribute("class","toast ".concat(t.variant?t.variant:""," ").concat(e)),s.innerHTML=r,s.setAttribute("role","alertdialog"),t.modal&&s.setAttribute("aria-modal",t.modal),s.onclick=function(c){c.stopPropagation(),s.remove(),n.childElementCount<1&&n.remove()},n.insertAdjacentElement(t.appendToast===!0?"beforeend":"afterbegin",s),t.autohide===!0&&setInterval(()=>{s.remove(),n.childElementCount<1&&n.remove()},t.autoHideDelay)}ui(e){let t={};e._ui?t=e:t._ui=e,this._uiManager(t)}uiGet(e,t=null){let i=this.document.querySelectorAll(e),r=[];return i.forEach(n=>{if(t!==null&&t!==""){let s=n.getAttribute(t);if(s==null)try{s=n[t]}catch{}if(s==null)t.toLowerCase()==="value"?r.push(n.innerText):r.push("Property '".concat(t,"' not found"));else if(s.constructor.name==="NamedNodeMap"){let c={};for(let o of s)c[o.name]=s[o.name].value;r.push(c)}else if(!s.constructor.name.toLowerCase().includes("map"))r.push({[t]:s});else{let c={};for(let o in s)c[o]=s[o];r.push(c)}}else r.push(this.nodeGet(n,e))}),r}},u(a,"log"),a);w.exports=x});export default C();
 //# sourceMappingURL=ui.esm.min.js.map
diff --git a/front-end/ui.esm.min.js.map b/front-end/ui.esm.min.js.map
index e0207a4a..9c12a21d 100644
--- a/front-end/ui.esm.min.js.map
+++ b/front-end/ui.esm.min.js.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
   "sources": ["src/front-end-module/ui.js"],
-  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        this._uiManager(msg)\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += msg.payload\n        if (ui.content) content += ui.content\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    // Namespaces - See https://stackoverflow.com/a/52572048/1309986\n    // const NAMESPACES = {\n    //     svg: 'http://www.w3.org/2000/svg',\n    //     html: 'http://www.w3.org/1999/xhtml',\n    //     xml: 'http://www.w3.org/XML/1998/namespace',\n    //     xlink: 'http://www.w3.org/1999/xlink',\n    //     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n    // }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    /** External alias for _uiComposeComponent\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n\n    } // --- end of _uiManager ---\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName !== null && propName !== '') {\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    // Nightmare of different object types in a DOM Element!\n                    if (prop.constructor.name === 'NamedNodeMap') { // Attributes\n                        const p = {}\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                        out.push(p)\n                    } else if (!prop.constructor.name.toLowerCase().includes('map')) { // Ordinary properties\n                        out.push({\n                            [propName]: prop\n                        })\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                        out.push(p)\n                    }\n                }\n\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n"],
-  "mappings": 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+  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\n// Namespaces - See https://stackoverflow.com/a/52572048/1309986\n// const NAMESPACES = {\n//     svg: 'http://www.w3.org/2000/svg',\n//     html: 'http://www.w3.org/1999/xhtml',\n//     xml: 'http://www.w3.org/XML/1998/namespace',\n//     xlink: 'http://www.w3.org/1999/xlink',\n//     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n// }\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    //#region ---- Internal Methods ----\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                if (attrib === 'class' && Array.isArray(comp.attributes[attrib])) comp.attributes[attrib].join(' ')\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    /** External alias for _uiComposeComponent\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n    } // --- end of _uiManager ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    //#endregion ---- -------- ----\n    //#region ---- External Methods ----\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += msg.payload\n        if (ui.content) content += ui.content\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        this._uiManager(msg)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName !== null && propName !== '') {\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    // Nightmare of different object types in a DOM Element!\n                    if (prop.constructor.name === 'NamedNodeMap') { // Attributes\n                        const p = {}\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                        out.push(p)\n                    } else if (!prop.constructor.name.toLowerCase().includes('map')) { // Ordinary properties\n                        out.push({\n                            [propName]: prop\n                        })\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                        out.push(p)\n                    }\n                }\n\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    //#endregion ---- -------- ----\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n"],
+  "mappings": 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EAAK,YAAY,KAAK,YAAY,EAAE,SAAS,KAAK,EAC1DiD,EAAI,KAAK,CACL,CAACF,CAAQ,EAAG/C,CAChB,CAAC,MACE,CACH,IAAMkD,EAAI,CAAC,EAEX,QAAWC,KAAOnD,EACdkD,EAAEC,CAAG,EAAInD,EAAKmD,CAAG,EAErBF,EAAI,KAAKC,CAAC,CACd,CAGR,MACID,EAAI,KAAK,KAAK,QAAQhB,EAAMC,CAAW,CAAC,CAEhD,CAAC,EAEMe,CACX,CAGJ,EAhnCInE,EAdOL,EAcA,OAdAA,GAgoCXD,EAAO,QAAUE",
+  "names": ["require_ui", "__commonJSMin", "exports", "module", "_a", "Ui", "win", "extLog", "jsonHighlight", "__publicField", "config", "notify", "resolve", "reject", "ev", "ui", "isRecurse", "compToAdd", "i", "newEl", "elParent", "el", "comp", "attrib", "type", "evt", "err", "prop", "parentEl", "components", "ns", "component", "__toESM", "__require", "script", "sheet", "msg", "all", "compToRemove", "els", "compToReplace", "elToReplace", "compToUpd", "elToUpd", "mdText", "opts", "str", "lang", "md", "url", "uiOptions", "response", "error", "contentType", "slot", "txtReturn", "data", "newScript", "textFn", "newStyle", "node", "cssSelector", "thisOut", "listEntries", "bodyEntries", "headEntries", "cols", "v", "permit", "html", "content", "toaster", "toast", "json", "propName", "selection", "out", "p", "key"]
 }
diff --git a/front-end/ui.iife.js b/front-end/ui.iife.js
index 2ba45ff2..a8b3cc10 100644
--- a/front-end/ui.iife.js
+++ b/front-end/ui.iife.js
@@ -47,210 +47,7 @@
             this.syntaxHighlight = function() {
             };
         }
-        /** Directly manage UI via JSON
-         * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions
-         */
-        ui(json) {
-          let msg = {};
-          if (json._ui)
-            msg = json;
-          else
-            msg._ui = json;
-          this._uiManager(msg);
-        }
-        // TODO Add multi-slot
-        /** Replace or add an HTML element's slot from text or an HTML string
-         * Will use DOMPurify if that library has been loaded to window.
-         * param {*} ui Single entry from the msg._ui property
-         * @param {Element} el Reference to the element that we want to update
-         * @param {*} component The component we are trying to add/replace
-         */
-        replaceSlot(el, component) {
-          if (!component.slot)
-            return;
-          if (!el)
-            return;
-          if (this.window["DOMPurify"])
-            component.slot = this.window["DOMPurify"].sanitize(component.slot);
-          el.innerHTML = component.slot;
-        }
-        /** Converts markdown text input to HTML if the Markdown-IT library is loaded
-         * Otherwise simply returns the text
-         * @param {string} mdText The input markdown string
-         * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text
-         */
-        convertMarkdown(mdText) {
-          if (!mdText)
-            return "";
-          if (!this.window["markdownit"])
-            return mdText;
-          const opts = {
-            // eslint-disable-line object-shorthand
-            html: true,
-            linkify: true,
-            _highlight: true,
-            langPrefix: "language-",
-            highlight(str, lang) {
-              if (lang && this.window["hljs"] && this.window["hljs"].getLanguage(lang)) {
-                try {
-                  return `<pre class="highlight" data-language="${lang.toUpperCase()}">
-                                <code class="language-${lang}">${this.window["hljs"].highlightAuto(str).value}</code></pre>`;
-                } finally {
-                }
-              }
-              return `<pre class="highlight"><code>${md.utils.escapeHtml(str)}</code></pre>`;
-            }
-          };
-          const md = this.window["markdownit"](opts);
-          return md.render(mdText);
-        }
-        /** Sanitise HTML to make it safe - if the DOMPurify library is loaded
-         * Otherwise just returns that HTML as-is.
-         * @param {string} html The input HTML string
-         * @returns {string} The sanitised HTML or the original if DOMPurify not loaded
-         */
-        sanitiseHTML(html) {
-          if (!this.window["DOMPurify"])
-            return html;
-          return this.window["DOMPurify"].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs });
-        }
-        /** Replace or add an HTML element's slot from a Markdown string
-         * Only does something if the markdownit library has been loaded to window.
-         * Will use DOMPurify if that library has been loaded to window.
-         * @param {Element} el Reference to the element that we want to update
-         * @param {*} component The component we are trying to add/replace
-         */
-        replaceSlotMarkdown(el, component) {
-          if (!el)
-            return;
-          if (!component.slotMarkdown)
-            return;
-          component.slotMarkdown = this.convertMarkdown(component.slotMarkdown);
-          component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown);
-          el.innerHTML = component.slotMarkdown;
-        }
-        /** Attach a new remote script to the end of HEAD synchronously
-         * NOTE: It takes too long for most scripts to finish loading
-         *       so this is pretty useless to work with the dynamic UI features directly.
-         * @param {string} url The url to be used in the script src attribute
-         */
-        loadScriptSrc(url) {
-          const newScript = this.document.createElement("script");
-          newScript.src = url;
-          newScript.async = false;
-          this.document.head.appendChild(newScript);
-        }
-        /** Attach a new remote stylesheet link to the end of HEAD synchronously
-         * NOTE: It takes too long for most scripts to finish loading
-         *       so this is pretty useless to work with the dynamic UI features directly.
-         * @param {string} url The url to be used in the style link href attribute
-         */
-        loadStyleSrc(url) {
-          const newStyle = this.document.createElement("link");
-          newStyle.href = url;
-          newStyle.rel = "stylesheet";
-          newStyle.type = "text/css";
-          this.document.head.appendChild(newStyle);
-        }
-        /** Attach a new text script to the end of HEAD synchronously
-         * NOTE: It takes too long for most scripts to finish loading
-         *       so this is pretty useless to work with the dynamic UI features directly.
-         * @param {string} textFn The text to be loaded as a script
-         */
-        loadScriptTxt(textFn) {
-          const newScript = this.document.createElement("script");
-          newScript.async = false;
-          newScript.textContent = textFn;
-          this.document.head.appendChild(newScript);
-        }
-        /** Attach a new text stylesheet to the end of HEAD synchronously
-         * NOTE: It takes too long for most scripts to finish loading
-         *       so this is pretty useless to work with the dynamic UI features directly.
-         * @param {string} textFn The text to be loaded as a stylesheet
-         */
-        loadStyleTxt(textFn) {
-          const newStyle = this.document.createElement("style");
-          newStyle.textContent = textFn;
-          this.document.head.appendChild(newStyle);
-        }
-        /** Show a pop-over "toast" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen
-         * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,
-         *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,
-         *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/
-         * @param {"notify"|"alert"} type Dialog type
-         * @param {object} ui standardised ui data
-         * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.
-         * @returns {void}
-         */
-        showDialog(type, ui, msg) {
-          let content = "";
-          if (msg.payload && typeof msg.payload === "string")
-            content += msg.payload;
-          if (ui.content)
-            content += ui.content;
-          if (content === "") {
-            _a.log(1, "Ui:showDialog", "Toast content is blank. Not shown.")();
-            return;
-          }
-          if (!ui.title && msg.topic)
-            ui.title = msg.topic;
-          if (ui.title)
-            content = `<p class="toast-head">${ui.title}</p><p>${content}</p>`;
-          if (ui.noAutohide)
-            ui.noAutoHide = ui.noAutohide;
-          if (ui.noAutoHide)
-            ui.autohide = !ui.noAutoHide;
-          if (ui.autoHideDelay) {
-            if (!ui.autohide)
-              ui.autohide = true;
-            ui.delay = ui.autoHideDelay;
-          } else
-            ui.autoHideDelay = 1e4;
-          if (!Object.prototype.hasOwnProperty.call(ui, "autohide"))
-            ui.autohide = true;
-          if (type === "alert") {
-            ui.modal = true;
-            ui.autohide = false;
-            content = `<svg viewBox="0 0 192.146 192.146" style="width:30;background-color:transparent;"><path d="M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z" /></svg> ${content}`;
-          }
-          let toaster = this.document.getElementById("toaster");
-          if (toaster === null) {
-            toaster = this.document.createElement("div");
-            toaster.id = "toaster";
-            toaster.title = "Click to clear all notifcations";
-            toaster.setAttribute("class", "toaster");
-            toaster.setAttribute("role", "dialog");
-            toaster.setAttribute("arial-label", "Toast message");
-            toaster.onclick = function() {
-              toaster.remove();
-            };
-            this.document.body.insertAdjacentElement("afterbegin", toaster);
-          }
-          const toast = this.document.createElement("div");
-          toast.title = "Click to clear this notifcation";
-          toast.setAttribute("class", `toast ${ui.variant ? ui.variant : ""} ${type}`);
-          toast.innerHTML = content;
-          toast.setAttribute("role", "alertdialog");
-          if (ui.modal)
-            toast.setAttribute("aria-modal", ui.modal);
-          toast.onclick = function(evt) {
-            evt.stopPropagation();
-            toast.remove();
-            if (toaster.childElementCount < 1)
-              toaster.remove();
-          };
-          if (type === "alert") {
-          }
-          toaster.insertAdjacentElement(ui.appendToast === true ? "beforeend" : "afterbegin", toast);
-          if (ui.autohide === true) {
-            setInterval(() => {
-              toast.remove();
-              if (toaster.childElementCount < 1)
-                toaster.remove();
-            }, ui.autoHideDelay);
-          }
-        }
-        // --- End of showDialog ---
+        //#region ---- Internal Methods ----
         /** Show a browser notification if the browser and the user allows it
          * @param {object} config Notification config data
          * @returns {Promise} Resolves on close or click event, returns the event.
@@ -284,74 +81,81 @@
             return Promise.reject(new Error("Browser refused to create a Notification"));
           }
         }
-        /** Show a browser notification if possible. Returns a promise
-         * Config can be a simple string, a Node-RED msg (topic as title, payload as body)
-         * or a Notifications API options object + config.title string.
-         * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification
-         * @param {object|string} config Notification config object or simple message string
-         * @returns {Promise} Resolves on close or click event, returns the event.
-         */
-        async notification(config) {
-          if (typeof config === "string") {
-            config = { body: config };
-          }
-          if (typeof Notification === "undefined")
-            return Promise.reject(new Error("Notifications not available in this browser"));
-          let permit = Notification.permission;
-          if (permit === "denied") {
-            return Promise.reject(new Error("Notifications not permitted by user"));
-          } else if (permit === "granted") {
-            return this._showNotification(config);
-          } else {
-            permit = await Notification.requestPermission();
-            if (permit === "granted") {
-              return this._showNotification(config);
-            }
-            return Promise.reject(new Error("Notifications not permitted by user"));
-          }
-        }
-        /** Load a dynamic UI from a JSON web reponse
-         * @param {string} url URL that will return the ui JSON
+        // Vue dynamic inserts Don't really work ...
+        // _uiAddVue(ui, isRecurse) {
+        //     // must be Vue
+        //     // must have only 1 root element
+        //     const compToAdd = ui.components[0]
+        //     const newEl = this.document.createElement(compToAdd.type)
+        //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload
+        //     this._uiComposeComponent(newEl, compToAdd)
+        //     // If nested components, go again - but don't pass payload to sub-components
+        //     if (compToAdd.components) {
+        //         this._uiExtendEl(newEl, compToAdd.components)
+        //     }
+        //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()
+        //     this.set('magick', newEl.outerHTML)
+        //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)
+        //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)
+        // }
+        // TODO Add check if ID already exists
+        // TODO Allow single add without using components array
+        /** Handle incoming msg._ui add requests
+         * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object
+         * @param {boolean} isRecurse Is this a recursive call?
          */
-        loadui(url) {
-          if (!fetch) {
-            _a.log(0, "Ui:loadui", "Current environment does not include `fetch`, skipping.")();
-            return;
-          }
-          if (!url) {
-            _a.log(0, "Ui:loadui", "url parameter must be provided, skipping.")();
-            return;
-          }
-          fetch(url).then((response) => {
-            if (response.ok === false) {
-              throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`);
+        _uiAdd(ui, isRecurse) {
+          _a.log("trace", "Ui:_uiManager:add", "Starting _uiAdd")();
+          ui.components.forEach((compToAdd, i) => {
+            _a.log("trace", `Ui:_uiAdd:components-forEach:${i}`, "Component to add: ", compToAdd)();
+            let newEl;
+            switch (compToAdd.type) {
+              case "html": {
+                compToAdd.ns = "html";
+                newEl = this.document.createElement("div");
+                break;
+              }
+              case "svg": {
+                compToAdd.ns = "svg";
+                newEl = this.document.createElementNS("http://www.w3.org/2000/svg", "svg");
+                break;
+              }
+              default: {
+                compToAdd.ns = "dom";
+                newEl = this.document.createElement(compToAdd.type);
+                break;
+              }
             }
-            _a.log("trace", "Ui:loadui:then1", `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)();
-            const contentType = response.headers.get("content-type");
-            if (!contentType || !contentType.includes("application/json")) {
-              throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`);
+            if (!compToAdd.slot && ui.payload)
+              compToAdd.slot = ui.payload;
+            this._uiComposeComponent(newEl, compToAdd);
+            let elParent;
+            if (compToAdd.parentEl) {
+              elParent = compToAdd.parentEl;
+            } else if (ui.parentEl) {
+              elParent = ui.parentEl;
+            } else if (compToAdd.parent) {
+              elParent = this.document.querySelector(compToAdd.parent);
+            } else if (ui.parent) {
+              elParent = this.document.querySelector(ui.parent);
             }
-            return response.json();
-          }).then((data) => {
-            if (data !== void 0) {
-              _a.log("trace", "Ui:loadui:then2", "Parsed JSON successfully obtained")();
-              this._uiManager({ _ui: data });
-              return true;
+            if (!elParent) {
+              _a.log("info", "Ui:_uiAdd", "No parent found, adding to body")();
+              elParent = this.document.querySelector("body");
+            }
+            if (compToAdd.position && compToAdd.position === "first") {
+              elParent.insertBefore(newEl, elParent.firstChild);
+            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {
+              elParent.insertBefore(newEl, elParent.children[compToAdd.position]);
+            } else {
+              elParent.appendChild(newEl);
+            }
+            if (compToAdd.components) {
+              this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns);
             }
-            return false;
-          }).catch((err) => {
-            _a.log("warn", "Ui:loadui:catch", "Error. ", err)();
           });
         }
-        // --- end of loadui
-        // Namespaces - See https://stackoverflow.com/a/52572048/1309986
-        // const NAMESPACES = {
-        //     svg: 'http://www.w3.org/2000/svg',
-        //     html: 'http://www.w3.org/1999/xhtml',
-        //     xml: 'http://www.w3.org/XML/1998/namespace',
-        //     xlink: 'http://www.w3.org/1999/xlink',
-        //     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...
-        // }
+        // --- end of _uiAdd ---
         /** Enhance an HTML element that is being composed with ui data
          *  such as ID, attribs, event handlers, custom props, etc.
          * @param {*} el HTML Element to enhance
@@ -360,6 +164,8 @@
         _uiComposeComponent(el, comp) {
           if (comp.attributes) {
             Object.keys(comp.attributes).forEach((attrib) => {
+              if (attrib === "class" && Array.isArray(comp.attributes[attrib]))
+                comp.attributes[attrib].join(" ");
               if (attrib === "value")
                 el.value = comp.attributes[attrib];
               if (attrib.startsWith("xlink:"))
@@ -434,81 +240,111 @@
             }
           });
         }
-        // Vue dynamic inserts Don't really work ...
-        // _uiAddVue(ui, isRecurse) {
-        //     // must be Vue
-        //     // must have only 1 root element
-        //     const compToAdd = ui.components[0]
-        //     const newEl = this.document.createElement(compToAdd.type)
-        //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload
-        //     this._uiComposeComponent(newEl, compToAdd)
-        //     // If nested components, go again - but don't pass payload to sub-components
-        //     if (compToAdd.components) {
-        //         this._uiExtendEl(newEl, compToAdd.components)
-        //     }
-        //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()
-        //     this.set('magick', newEl.outerHTML)
-        //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)
-        //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)
-        // }
-        // TODO Add check if ID already exists
-        // TODO Allow single add without using components array
-        /** Handle incoming msg._ui add requests
+        // TODO Add more error handling and parameter validation
+        /** Handle incoming _ui load requests
+         * Can load JavaScript modules, JavaScript scripts and CSS.
          * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object
-         * @param {boolean} isRecurse Is this a recursive call?
          */
-        _uiAdd(ui, isRecurse) {
-          _a.log("trace", "Ui:_uiManager:add", "Starting _uiAdd")();
-          ui.components.forEach((compToAdd, i) => {
-            _a.log("trace", `Ui:_uiAdd:components-forEach:${i}`, "Component to add: ", compToAdd)();
-            let newEl;
-            switch (compToAdd.type) {
-              case "html": {
-                compToAdd.ns = "html";
-                newEl = this.document.createElement("div");
+        _uiLoad(ui) {
+          if (ui.components) {
+            if (!Array.isArray(ui.components))
+              ui.components = [ui.components];
+            ui.components.forEach(async (component) => {
+              await import(component);
+            });
+          }
+          if (ui.srcScripts) {
+            if (!Array.isArray(ui.srcScripts))
+              ui.srcScripts = [ui.srcScripts];
+            ui.srcScripts.forEach((script) => {
+              this.loadScriptSrc(script);
+            });
+          }
+          if (ui.txtScripts) {
+            if (!Array.isArray(ui.txtScripts))
+              ui.txtScripts = [ui.txtScripts];
+            this.loadScriptTxt(ui.txtScripts.join("\n"));
+          }
+          if (ui.srcStyles) {
+            if (!Array.isArray(ui.srcStyles))
+              ui.srcStyles = [ui.srcStyles];
+            ui.srcStyles.forEach((sheet) => {
+              this.loadStyleSrc(sheet);
+            });
+          }
+          if (ui.txtStyles) {
+            if (!Array.isArray(ui.txtStyles))
+              ui.txtStyles = [ui.txtStyles];
+            this.loadStyleTxt(ui.txtStyles.join("\n"));
+          }
+        }
+        // --- end of _uiLoad ---
+        /** Handle incoming _ui messages and loaded UI JSON files
+         * Called from start()
+         * @param {*} msg Standardised msg object containing a _ui property object
+         */
+        _uiManager(msg) {
+          if (!msg._ui)
+            return;
+          if (!Array.isArray(msg._ui))
+            msg._ui = [msg._ui];
+          msg._ui.forEach((ui, i) => {
+            if (!ui.method) {
+              _a.log("error", "Ui:_uiManager", `No method defined for msg._ui[${i}]. Ignoring`)();
+              return;
+            }
+            ui.payload = msg.payload;
+            ui.topic = msg.topic;
+            switch (ui.method) {
+              case "add": {
+                this._uiAdd(ui, false);
                 break;
               }
-              case "svg": {
-                compToAdd.ns = "svg";
-                newEl = this.document.createElementNS("http://www.w3.org/2000/svg", "svg");
+              case "remove": {
+                this._uiRemove(ui, false);
+                break;
+              }
+              case "removeAll": {
+                this._uiRemove(ui, true);
+                break;
+              }
+              case "replace": {
+                this._uiReplace(ui);
+                break;
+              }
+              case "update": {
+                this._uiUpdate(ui);
+                break;
+              }
+              case "load": {
+                this._uiLoad(ui);
+                break;
+              }
+              case "reload": {
+                this._uiReload();
+                break;
+              }
+              case "notify": {
+                this.showDialog("notify", ui, msg);
+                break;
+              }
+              case "alert": {
+                this.showDialog("alert", ui, msg);
                 break;
               }
               default: {
-                compToAdd.ns = "dom";
-                newEl = this.document.createElement(compToAdd.type);
+                _a.log("error", "Ui:_uiManager", `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)();
                 break;
               }
             }
-            if (!compToAdd.slot && ui.payload)
-              compToAdd.slot = ui.payload;
-            this._uiComposeComponent(newEl, compToAdd);
-            let elParent;
-            if (compToAdd.parentEl) {
-              elParent = compToAdd.parentEl;
-            } else if (ui.parentEl) {
-              elParent = ui.parentEl;
-            } else if (compToAdd.parent) {
-              elParent = this.document.querySelector(compToAdd.parent);
-            } else if (ui.parent) {
-              elParent = this.document.querySelector(ui.parent);
-            }
-            if (!elParent) {
-              _a.log("info", "Ui:_uiAdd", "No parent found, adding to body")();
-              elParent = this.document.querySelector("body");
-            }
-            if (compToAdd.position && compToAdd.position === "first") {
-              elParent.insertBefore(newEl, elParent.firstChild);
-            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {
-              elParent.insertBefore(newEl, elParent.children[compToAdd.position]);
-            } else {
-              elParent.appendChild(newEl);
-            }
-            if (compToAdd.components) {
-              this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns);
-            }
           });
         }
-        // --- end of _uiAdd ---
+        // --- end of _uiManager ---
+        /** Handle a reload request */
+        _uiReload() {
+          _a.log("trace", "Ui:uiManager:reload", "reloading")();
+          location.reload();
+        }
         // TODO Add better tests for failures (see comments)
         /** Handle incoming _ui remove requests
          * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object
@@ -625,182 +461,463 @@
           });
         }
         // --- end of _uiUpdate ---
-        // TODO Add more error handling and parameter validation
-        /** Handle incoming _ui load requests
-         * Can load JavaScript modules, JavaScript scripts and CSS.
-         * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object
+        //#endregion ---- -------- ----
+        //#region ---- External Methods ----
+        /** Converts markdown text input to HTML if the Markdown-IT library is loaded
+         * Otherwise simply returns the text
+         * @param {string} mdText The input markdown string
+         * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text
          */
-        _uiLoad(ui) {
-          if (ui.components) {
-            if (!Array.isArray(ui.components))
-              ui.components = [ui.components];
-            ui.components.forEach(async (component) => {
-              await import(component);
-            });
-          }
-          if (ui.srcScripts) {
-            if (!Array.isArray(ui.srcScripts))
-              ui.srcScripts = [ui.srcScripts];
-            ui.srcScripts.forEach((script) => {
-              this.loadScriptSrc(script);
-            });
-          }
-          if (ui.txtScripts) {
-            if (!Array.isArray(ui.txtScripts))
-              ui.txtScripts = [ui.txtScripts];
-            this.loadScriptTxt(ui.txtScripts.join("\n"));
-          }
-          if (ui.srcStyles) {
-            if (!Array.isArray(ui.srcStyles))
-              ui.srcStyles = [ui.srcStyles];
-            ui.srcStyles.forEach((sheet) => {
-              this.loadStyleSrc(sheet);
-            });
+        convertMarkdown(mdText) {
+          if (!mdText)
+            return "";
+          if (!this.window["markdownit"])
+            return mdText;
+          const opts = {
+            // eslint-disable-line object-shorthand
+            html: true,
+            linkify: true,
+            _highlight: true,
+            langPrefix: "language-",
+            highlight(str, lang) {
+              if (lang && this.window["hljs"] && this.window["hljs"].getLanguage(lang)) {
+                try {
+                  return `<pre class="highlight" data-language="${lang.toUpperCase()}">
+                                <code class="language-${lang}">${this.window["hljs"].highlightAuto(str).value}</code></pre>`;
+                } finally {
+                }
+              }
+              return `<pre class="highlight"><code>${md.utils.escapeHtml(str)}</code></pre>`;
+            }
+          };
+          const md = this.window["markdownit"](opts);
+          return md.render(mdText);
+        }
+        /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API
+         * Wraps the included object in a div tag.
+         * PDF's, text or unknown MIME types are also wrapped in an iFrame.
+         * @param {string} url The URL of the source file to include
+         * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id
+         * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag
+         * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')
+         * @returns {Promise<any>} Status
+         */
+        async include(url, uiOptions) {
+          if (!fetch) {
+            _a.log(0, "Ui:include", "Current environment does not include `fetch`, skipping.")();
+            return "Current environment does not include `fetch`, skipping.";
           }
-          if (ui.txtStyles) {
-            if (!Array.isArray(ui.txtStyles))
-              ui.txtStyles = [ui.txtStyles];
-            this.loadStyleTxt(ui.txtStyles.join("\n"));
+          if (!url) {
+            _a.log(0, "Ui:include", "url parameter must be provided, skipping.")();
+            return "url parameter must be provided, skipping.";
+          }
+          if (!uiOptions || !uiOptions.id) {
+            _a.log(0, "Ui:include", "uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.")();
+            return "uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.";
+          }
+          let response;
+          try {
+            response = await fetch(url);
+          } catch (error) {
+            _a.log(0, "Ui:include", `Fetch of file '${url}' failed. `, error.message)();
+            return error.message;
+          }
+          if (!response.ok) {
+            _a.log(0, "Ui:include", `Fetch of file '${url}' failed. Status='${response.statusText}'`)();
+            return response.statusText;
+          }
+          const contentType = await response.headers.get("content-type");
+          let type = null;
+          if (contentType) {
+            if (contentType.includes("text/html")) {
+              type = "html";
+            } else if (contentType.includes("application/json")) {
+              type = "json";
+            } else if (contentType.includes("multipart/form-data")) {
+              type = "form";
+            } else if (contentType.includes("image/")) {
+              type = "image";
+            } else if (contentType.includes("video/")) {
+              type = "video";
+            } else if (contentType.includes("application/pdf")) {
+              type = "pdf";
+            } else if (contentType.includes("text/plain")) {
+              type = "text";
+            }
+          }
+          let slot = "";
+          let txtReturn = "Include successful";
+          let data;
+          switch (type) {
+            case "html": {
+              data = await response.text();
+              slot = data;
+              break;
+            }
+            case "json": {
+              data = await response.json();
+              slot = '<pre class="syntax-highlight">';
+              slot += this.syntaxHighlight(data);
+              slot += "</pre>";
+              break;
+            }
+            case "form": {
+              data = await response.formData();
+              slot = '<pre class="syntax-highlight">';
+              slot += this.syntaxHighlight(data);
+              slot += "</pre>";
+              break;
+            }
+            case "image": {
+              data = await response.blob();
+              slot = `<img src="${URL.createObjectURL(data)}">`;
+              if (this.window["DOMPurify"]) {
+                txtReturn = "Include successful. BUT DOMPurify loaded which may block its use.";
+                _a.log("warn", "Ui:include:image", txtReturn)();
+              }
+              break;
+            }
+            case "video": {
+              data = await response.blob();
+              slot = `<video controls autoplay><source src="${URL.createObjectURL(data)}"></video>`;
+              if (this.window["DOMPurify"]) {
+                txtReturn = "Include successful. BUT DOMPurify loaded which may block its use.";
+                _a.log("warn", "Ui:include:video", txtReturn)();
+              }
+              break;
+            }
+            case "pdf":
+            case "text":
+            default: {
+              data = await response.blob();
+              slot = `<iframe style="resize:both;width:inherit;height:inherit;" src="${URL.createObjectURL(data)}">`;
+              if (this.window["DOMPurify"]) {
+                txtReturn = "Include successful. BUT DOMPurify loaded which may block its use.";
+                _a.log("warn", `Ui:include:${type}`, txtReturn)();
+              }
+              break;
+            }
           }
+          uiOptions.type = "div";
+          uiOptions.slot = slot;
+          if (!uiOptions.parent)
+            uiOptions.parent = "body";
+          if (!uiOptions.attributes)
+            uiOptions.attributes = { class: "included" };
+          this._uiReplace({
+            components: [
+              uiOptions
+            ]
+          });
+          _a.log("trace", `Ui:include:${type}`, txtReturn)();
+          return txtReturn;
         }
-        // --- end of _uiLoad ---
-        /** Handle a reload request */
-        _uiReload() {
-          _a.log("trace", "Ui:uiManager:reload", "reloading")();
-          location.reload();
+        // ---- End of include() ---- //
+        /** Attach a new remote script to the end of HEAD synchronously
+         * NOTE: It takes too long for most scripts to finish loading
+         *       so this is pretty useless to work with the dynamic UI features directly.
+         * @param {string} url The url to be used in the script src attribute
+         */
+        loadScriptSrc(url) {
+          const newScript = this.document.createElement("script");
+          newScript.src = url;
+          newScript.async = false;
+          this.document.head.appendChild(newScript);
         }
-        /** Handle incoming _ui messages and loaded UI JSON files
-         * Called from start()
-         * @param {*} msg Standardised msg object containing a _ui property object
+        /** Attach a new text script to the end of HEAD synchronously
+         * NOTE: It takes too long for most scripts to finish loading
+         *       so this is pretty useless to work with the dynamic UI features directly.
+         * @param {string} textFn The text to be loaded as a script
          */
-        _uiManager(msg) {
-          if (!msg._ui)
+        loadScriptTxt(textFn) {
+          const newScript = this.document.createElement("script");
+          newScript.async = false;
+          newScript.textContent = textFn;
+          this.document.head.appendChild(newScript);
+        }
+        /** Attach a new remote stylesheet link to the end of HEAD synchronously
+         * NOTE: It takes too long for most scripts to finish loading
+         *       so this is pretty useless to work with the dynamic UI features directly.
+         * @param {string} url The url to be used in the style link href attribute
+         */
+        loadStyleSrc(url) {
+          const newStyle = this.document.createElement("link");
+          newStyle.href = url;
+          newStyle.rel = "stylesheet";
+          newStyle.type = "text/css";
+          this.document.head.appendChild(newStyle);
+        }
+        /** Attach a new text stylesheet to the end of HEAD synchronously
+         * NOTE: It takes too long for most scripts to finish loading
+         *       so this is pretty useless to work with the dynamic UI features directly.
+         * @param {string} textFn The text to be loaded as a stylesheet
+         */
+        loadStyleTxt(textFn) {
+          const newStyle = this.document.createElement("style");
+          newStyle.textContent = textFn;
+          this.document.head.appendChild(newStyle);
+        }
+        /** Load a dynamic UI from a JSON web reponse
+         * @param {string} url URL that will return the ui JSON
+         */
+        loadui(url) {
+          if (!fetch) {
+            _a.log(0, "Ui:loadui", "Current environment does not include `fetch`, skipping.")();
             return;
-          if (!Array.isArray(msg._ui))
-            msg._ui = [msg._ui];
-          msg._ui.forEach((ui, i) => {
-            if (!ui.method) {
-              _a.log("error", "Ui:_uiManager", `No method defined for msg._ui[${i}]. Ignoring`)();
-              return;
+          }
+          if (!url) {
+            _a.log(0, "Ui:loadui", "url parameter must be provided, skipping.")();
+            return;
+          }
+          fetch(url).then((response) => {
+            if (response.ok === false) {
+              throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`);
             }
-            ui.payload = msg.payload;
-            ui.topic = msg.topic;
-            switch (ui.method) {
-              case "add": {
-                this._uiAdd(ui, false);
-                break;
-              }
-              case "remove": {
-                this._uiRemove(ui, false);
-                break;
-              }
-              case "removeAll": {
-                this._uiRemove(ui, true);
-                break;
-              }
-              case "replace": {
-                this._uiReplace(ui);
-                break;
-              }
-              case "update": {
-                this._uiUpdate(ui);
-                break;
-              }
-              case "load": {
-                this._uiLoad(ui);
-                break;
-              }
-              case "reload": {
-                this._uiReload();
-                break;
-              }
-              case "notify": {
-                this.showDialog("notify", ui, msg);
-                break;
-              }
-              case "alert": {
-                this.showDialog("alert", ui, msg);
-                break;
-              }
-              default: {
-                _a.log("error", "Ui:_uiManager", `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)();
-                break;
-              }
+            _a.log("trace", "Ui:loadui:then1", `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)();
+            const contentType = response.headers.get("content-type");
+            if (!contentType || !contentType.includes("application/json")) {
+              throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`);
+            }
+            return response.json();
+          }).then((data) => {
+            if (data !== void 0) {
+              _a.log("trace", "Ui:loadui:then2", "Parsed JSON successfully obtained")();
+              this._uiManager({ _ui: data });
+              return true;
             }
+            return false;
+          }).catch((err) => {
+            _a.log("warn", "Ui:loadui:catch", "Error. ", err)();
           });
         }
-        // --- end of _uiManager ---
+        // --- end of loadui
         /** Get standard data from a DOM node.
          * @param {*} node DOM node to examine
          * @param {string} cssSelector Identify the DOM element to get data from
          * @returns {object} Standardised data object
          */
-        nodeGet(node, cssSelector) {
-          const thisOut = {
-            id: node.id === "" ? void 0 : node.id,
-            name: node.name,
-            children: node.childNodes.length,
-            type: node.nodeName,
-            attributes: void 0,
-            isUserInput: node.validity ? true : false,
-            // eslint-disable-line no-unneeded-ternary
-            userInput: !node.validity ? void 0 : {
-              // eslint-disable-line multiline-ternary
-              value: node.value,
-              validity: void 0,
-              willValidate: node.willValidate,
-              valueAsDate: node.valueAsDate,
-              valueAsNumber: node.valueAsNumber,
-              type: node.type
-            }
-          };
-          if (["UL", "OL"].includes(node.nodeName)) {
-            const listEntries = this.document.querySelectorAll(`${cssSelector} li`);
-            if (listEntries) {
-              thisOut.list = {
-                "entries": listEntries.length
-              };
-            }
-          }
-          if (node.nodeName === "DL") {
-            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`);
-            if (listEntries) {
-              thisOut.list = {
-                "entries": listEntries.length
-              };
-            }
+        nodeGet(node, cssSelector) {
+          const thisOut = {
+            id: node.id === "" ? void 0 : node.id,
+            name: node.name,
+            children: node.childNodes.length,
+            type: node.nodeName,
+            attributes: void 0,
+            isUserInput: node.validity ? true : false,
+            // eslint-disable-line no-unneeded-ternary
+            userInput: !node.validity ? void 0 : {
+              // eslint-disable-line multiline-ternary
+              value: node.value,
+              validity: void 0,
+              willValidate: node.willValidate,
+              valueAsDate: node.valueAsDate,
+              valueAsNumber: node.valueAsNumber,
+              type: node.type
+            }
+          };
+          if (["UL", "OL"].includes(node.nodeName)) {
+            const listEntries = this.document.querySelectorAll(`${cssSelector} li`);
+            if (listEntries) {
+              thisOut.list = {
+                "entries": listEntries.length
+              };
+            }
+          }
+          if (node.nodeName === "DL") {
+            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`);
+            if (listEntries) {
+              thisOut.list = {
+                "entries": listEntries.length
+              };
+            }
+          }
+          if (node.nodeName === "TABLE") {
+            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`);
+            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`);
+            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`);
+            if (bodyEntries || headEntries || cols) {
+              thisOut.table = {
+                "headRows": headEntries ? headEntries.length : 0,
+                "bodyRows": bodyEntries ? bodyEntries.length : 0,
+                "columns": cols ? cols.length : 0
+              };
+            }
+          }
+          if (node.nodeName !== "#text" && node.attributes && node.attributes.length > 0) {
+            thisOut.attributes = {};
+            for (const attrib of node.attributes) {
+              if (attrib.name !== "id") {
+                thisOut.attributes[attrib.name] = node.attributes[attrib.name].value;
+              }
+            }
+          }
+          if (node.nodeName === "#text") {
+            thisOut.text = node.textContent;
+          }
+          if (node.validity)
+            thisOut.userInput.validity = {};
+          for (const v in node.validity) {
+            thisOut.userInput.validity[v] = node.validity[v];
+          }
+          return thisOut;
+        }
+        // --- end of nodeGet --- //
+        /** Show a browser notification if possible. Returns a promise
+         * Config can be a simple string, a Node-RED msg (topic as title, payload as body)
+         * or a Notifications API options object + config.title string.
+         * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification
+         * @param {object|string} config Notification config object or simple message string
+         * @returns {Promise} Resolves on close or click event, returns the event.
+         */
+        async notification(config) {
+          if (typeof config === "string") {
+            config = { body: config };
+          }
+          if (typeof Notification === "undefined")
+            return Promise.reject(new Error("Notifications not available in this browser"));
+          let permit = Notification.permission;
+          if (permit === "denied") {
+            return Promise.reject(new Error("Notifications not permitted by user"));
+          } else if (permit === "granted") {
+            return this._showNotification(config);
+          } else {
+            permit = await Notification.requestPermission();
+            if (permit === "granted") {
+              return this._showNotification(config);
+            }
+            return Promise.reject(new Error("Notifications not permitted by user"));
+          }
+        }
+        // TODO Add multi-slot
+        /** Replace or add an HTML element's slot from text or an HTML string
+         * Will use DOMPurify if that library has been loaded to window.
+         * param {*} ui Single entry from the msg._ui property
+         * @param {Element} el Reference to the element that we want to update
+         * @param {*} component The component we are trying to add/replace
+         */
+        replaceSlot(el, component) {
+          if (!component.slot)
+            return;
+          if (!el)
+            return;
+          if (this.window["DOMPurify"])
+            component.slot = this.window["DOMPurify"].sanitize(component.slot);
+          el.innerHTML = component.slot;
+        }
+        /** Replace or add an HTML element's slot from a Markdown string
+         * Only does something if the markdownit library has been loaded to window.
+         * Will use DOMPurify if that library has been loaded to window.
+         * @param {Element} el Reference to the element that we want to update
+         * @param {*} component The component we are trying to add/replace
+         */
+        replaceSlotMarkdown(el, component) {
+          if (!el)
+            return;
+          if (!component.slotMarkdown)
+            return;
+          component.slotMarkdown = this.convertMarkdown(component.slotMarkdown);
+          component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown);
+          el.innerHTML = component.slotMarkdown;
+        }
+        /** Sanitise HTML to make it safe - if the DOMPurify library is loaded
+         * Otherwise just returns that HTML as-is.
+         * @param {string} html The input HTML string
+         * @returns {string} The sanitised HTML or the original if DOMPurify not loaded
+         */
+        sanitiseHTML(html) {
+          if (!this.window["DOMPurify"])
+            return html;
+          return this.window["DOMPurify"].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs });
+        }
+        /** Show a pop-over "toast" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen
+         * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,
+         *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,
+         *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/
+         * @param {"notify"|"alert"} type Dialog type
+         * @param {object} ui standardised ui data
+         * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.
+         * @returns {void}
+         */
+        showDialog(type, ui, msg) {
+          let content = "";
+          if (msg.payload && typeof msg.payload === "string")
+            content += msg.payload;
+          if (ui.content)
+            content += ui.content;
+          if (content === "") {
+            _a.log(1, "Ui:showDialog", "Toast content is blank. Not shown.")();
+            return;
           }
-          if (node.nodeName === "TABLE") {
-            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`);
-            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`);
-            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`);
-            if (bodyEntries || headEntries || cols) {
-              thisOut.table = {
-                "headRows": headEntries ? headEntries.length : 0,
-                "bodyRows": bodyEntries ? bodyEntries.length : 0,
-                "columns": cols ? cols.length : 0
-              };
-            }
+          if (!ui.title && msg.topic)
+            ui.title = msg.topic;
+          if (ui.title)
+            content = `<p class="toast-head">${ui.title}</p><p>${content}</p>`;
+          if (ui.noAutohide)
+            ui.noAutoHide = ui.noAutohide;
+          if (ui.noAutoHide)
+            ui.autohide = !ui.noAutoHide;
+          if (ui.autoHideDelay) {
+            if (!ui.autohide)
+              ui.autohide = true;
+            ui.delay = ui.autoHideDelay;
+          } else
+            ui.autoHideDelay = 1e4;
+          if (!Object.prototype.hasOwnProperty.call(ui, "autohide"))
+            ui.autohide = true;
+          if (type === "alert") {
+            ui.modal = true;
+            ui.autohide = false;
+            content = `<svg viewBox="0 0 192.146 192.146" style="width:30;background-color:transparent;"><path d="M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z" /></svg> ${content}`;
           }
-          if (node.nodeName !== "#text" && node.attributes && node.attributes.length > 0) {
-            thisOut.attributes = {};
-            for (const attrib of node.attributes) {
-              if (attrib.name !== "id") {
-                thisOut.attributes[attrib.name] = node.attributes[attrib.name].value;
-              }
-            }
+          let toaster = this.document.getElementById("toaster");
+          if (toaster === null) {
+            toaster = this.document.createElement("div");
+            toaster.id = "toaster";
+            toaster.title = "Click to clear all notifcations";
+            toaster.setAttribute("class", "toaster");
+            toaster.setAttribute("role", "dialog");
+            toaster.setAttribute("arial-label", "Toast message");
+            toaster.onclick = function() {
+              toaster.remove();
+            };
+            this.document.body.insertAdjacentElement("afterbegin", toaster);
           }
-          if (node.nodeName === "#text") {
-            thisOut.text = node.textContent;
+          const toast = this.document.createElement("div");
+          toast.title = "Click to clear this notifcation";
+          toast.setAttribute("class", `toast ${ui.variant ? ui.variant : ""} ${type}`);
+          toast.innerHTML = content;
+          toast.setAttribute("role", "alertdialog");
+          if (ui.modal)
+            toast.setAttribute("aria-modal", ui.modal);
+          toast.onclick = function(evt) {
+            evt.stopPropagation();
+            toast.remove();
+            if (toaster.childElementCount < 1)
+              toaster.remove();
+          };
+          if (type === "alert") {
           }
-          if (node.validity)
-            thisOut.userInput.validity = {};
-          for (const v in node.validity) {
-            thisOut.userInput.validity[v] = node.validity[v];
+          toaster.insertAdjacentElement(ui.appendToast === true ? "beforeend" : "afterbegin", toast);
+          if (ui.autohide === true) {
+            setInterval(() => {
+              toast.remove();
+              if (toaster.childElementCount < 1)
+                toaster.remove();
+            }, ui.autoHideDelay);
           }
-          return thisOut;
         }
-        // --- end of nodeGet --- //
+        // --- End of showDialog ---
+        /** Directly manage UI via JSON
+         * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions
+         */
+        ui(json) {
+          let msg = {};
+          if (json._ui)
+            msg = json;
+          else
+            msg._ui = json;
+          this._uiManager(msg);
+        }
         /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.
          * @param {string} cssSelector Identify the DOM element to get data from
          * @param {string} [propName] Optional. Specific name of property to get from the element
@@ -852,126 +969,7 @@
           return out;
         }
         // --- end of uiGet --- //
-        /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API
-         * Wraps the included object in a div tag.
-         * PDF's, text or unknown MIME types are also wrapped in an iFrame.
-         * @param {string} url The URL of the source file to include
-         * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id
-         * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag
-         * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')
-         * @returns {Promise<any>} Status
-         */
-        async include(url, uiOptions) {
-          if (!fetch) {
-            _a.log(0, "Ui:include", "Current environment does not include `fetch`, skipping.")();
-            return "Current environment does not include `fetch`, skipping.";
-          }
-          if (!url) {
-            _a.log(0, "Ui:include", "url parameter must be provided, skipping.")();
-            return "url parameter must be provided, skipping.";
-          }
-          if (!uiOptions || !uiOptions.id) {
-            _a.log(0, "Ui:include", "uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.")();
-            return "uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.";
-          }
-          let response;
-          try {
-            response = await fetch(url);
-          } catch (error) {
-            _a.log(0, "Ui:include", `Fetch of file '${url}' failed. `, error.message)();
-            return error.message;
-          }
-          if (!response.ok) {
-            _a.log(0, "Ui:include", `Fetch of file '${url}' failed. Status='${response.statusText}'`)();
-            return response.statusText;
-          }
-          const contentType = await response.headers.get("content-type");
-          let type = null;
-          if (contentType) {
-            if (contentType.includes("text/html")) {
-              type = "html";
-            } else if (contentType.includes("application/json")) {
-              type = "json";
-            } else if (contentType.includes("multipart/form-data")) {
-              type = "form";
-            } else if (contentType.includes("image/")) {
-              type = "image";
-            } else if (contentType.includes("video/")) {
-              type = "video";
-            } else if (contentType.includes("application/pdf")) {
-              type = "pdf";
-            } else if (contentType.includes("text/plain")) {
-              type = "text";
-            }
-          }
-          let slot = "";
-          let txtReturn = "Include successful";
-          let data;
-          switch (type) {
-            case "html": {
-              data = await response.text();
-              slot = data;
-              break;
-            }
-            case "json": {
-              data = await response.json();
-              slot = '<pre class="syntax-highlight">';
-              slot += this.syntaxHighlight(data);
-              slot += "</pre>";
-              break;
-            }
-            case "form": {
-              data = await response.formData();
-              slot = '<pre class="syntax-highlight">';
-              slot += this.syntaxHighlight(data);
-              slot += "</pre>";
-              break;
-            }
-            case "image": {
-              data = await response.blob();
-              slot = `<img src="${URL.createObjectURL(data)}">`;
-              if (this.window["DOMPurify"]) {
-                txtReturn = "Include successful. BUT DOMPurify loaded which may block its use.";
-                _a.log("warn", "Ui:include:image", txtReturn)();
-              }
-              break;
-            }
-            case "video": {
-              data = await response.blob();
-              slot = `<video controls autoplay><source src="${URL.createObjectURL(data)}"></video>`;
-              if (this.window["DOMPurify"]) {
-                txtReturn = "Include successful. BUT DOMPurify loaded which may block its use.";
-                _a.log("warn", "Ui:include:video", txtReturn)();
-              }
-              break;
-            }
-            case "pdf":
-            case "text":
-            default: {
-              data = await response.blob();
-              slot = `<iframe style="resize:both;width:inherit;height:inherit;" src="${URL.createObjectURL(data)}">`;
-              if (this.window["DOMPurify"]) {
-                txtReturn = "Include successful. BUT DOMPurify loaded which may block its use.";
-                _a.log("warn", `Ui:include:${type}`, txtReturn)();
-              }
-              break;
-            }
-          }
-          uiOptions.type = "div";
-          uiOptions.slot = slot;
-          if (!uiOptions.parent)
-            uiOptions.parent = "body";
-          if (!uiOptions.attributes)
-            uiOptions.attributes = { class: "included" };
-          this._uiReplace({
-            components: [
-              uiOptions
-            ]
-          });
-          _a.log("trace", `Ui:include:${type}`, txtReturn)();
-          return txtReturn;
-        }
-        // ---- End of include() ---- //
+        //#endregion ---- -------- ----
       }, /** Log function - passed in constructor or will be a dummy function
        * @type {function}
        */
diff --git a/front-end/ui.iife.min.js b/front-end/ui.iife.min.js
index e894c476..eed87786 100644
--- a/front-end/ui.iife.min.js
+++ b/front-end/ui.iife.min.js
@@ -1,2 +1,2 @@
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Ignoring"))();break}}}))}nodeGet(e,t){let i={id:e.id===""?void 0:e.id,name:e.name,children:e.childNodes.length,type:e.nodeName,attributes:void 0,isUserInput:!!e.validity,userInput:e.validity?{value:e.value,validity:void 0,willValidate:e.willValidate,valueAsDate:e.valueAsDate,valueAsNumber:e.valueAsNumber,type:e.type}:void 0};if(["UL","OL"].includes(e.nodeName)){let r=this.document.querySelectorAll("".concat(t," li"));r&&(i.list={entries:r.length})}if(e.nodeName==="DL"){let r=this.document.querySelectorAll("".concat(t," dt"));r&&(i.list={entries:r.length})}if(e.nodeName==="TABLE"){let r=this.document.querySelectorAll("".concat(t," > tbody > tr")),n=this.document.querySelectorAll("".concat(t," > thead > tr")),s=this.document.querySelectorAll("".concat(t," > tbody > tr:last-child > *"));(r||n||s)&&(i.table={headRows:n?n.length:0,bodyRows:r?r.length:0,columns:s?s.length:0})}if(e.nodeName!=="#text"&&e.attributes&&e.attributes.length>0){i.attributes={};for(let r of e.attributes)r.name!=="id"&&(i.attributes[r.name]=e.attributes[r.name].value)}e.nodeName==="#text"&&(i.text=e.textContent),e.validity&&(i.userInput.validity={});for(let r in e.validity)i.userInput.validity[r]=e.validity[r];return i}uiGet(e,t=null){let i=this.document.querySelectorAll(e),r=[];return i.forEach(n=>{if(t!==null&&t!==""){let s=n.getAttribute(t);if(s==null)try{s=n[t]}catch{}if(s==null)t.toLowerCase()==="value"?r.push(n.innerText):r.push("Property '".concat(t,"' not found"));else if(s.constructor.name==="NamedNodeMap"){let c={};for(let o of s)c[o.name]=s[o.name].value;r.push(c)}else if(!s.constructor.name.toLowerCase().includes("map"))r.push({[t]:s});else{let c={};for(let o in s)c[o]=s[o];r.push(c)}}else r.push(this.nodeGet(n,e))}),r}async include(e,t){if(!fetch)return a.log(0,"Ui:include","Current environment does not include `fetch`, skipping.")(),"Current environment does not include `fetch`, skipping.";if(!e)return a.log(0,"Ui:include","url parameter must be provided, skipping.")(),"url parameter must be provided, skipping.";if(!t||!t.id)return a.log(0,"Ui:include","uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.")(),"uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.";let i;try{i=await fetch(e)}catch(h){return a.log(0,"Ui:include","Fetch of file '".concat(e,"' failed. 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diff --git a/front-end/ui.iife.min.js.map b/front-end/ui.iife.min.js.map
index ff8d6128..f37bbeed 100644
--- a/front-end/ui.iife.min.js.map
+++ b/front-end/ui.iife.min.js.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
   "sources": ["src/front-end-module/ui.js"],
-  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        this._uiManager(msg)\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += msg.payload\n        if (ui.content) content += ui.content\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    // Namespaces - See https://stackoverflow.com/a/52572048/1309986\n    // const NAMESPACES = {\n    //     svg: 'http://www.w3.org/2000/svg',\n    //     html: 'http://www.w3.org/1999/xhtml',\n    //     xml: 'http://www.w3.org/XML/1998/namespace',\n    //     xlink: 'http://www.w3.org/1999/xlink',\n    //     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n    // }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    /** External alias for _uiComposeComponent\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n\n    } // --- end of _uiManager ---\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName !== null && propName !== '') {\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    // Nightmare of different object types in a DOM Element!\n                    if (prop.constructor.name === 'NamedNodeMap') { // Attributes\n                        const p = {}\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                        out.push(p)\n                    } else if (!prop.constructor.name.toLowerCase().includes('map')) { // Ordinary properties\n                        out.push({\n                            [propName]: prop\n                        })\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                        out.push(p)\n                    }\n                }\n\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n"],
-  "mappings": 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+  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\n// Namespaces - See https://stackoverflow.com/a/52572048/1309986\n// const NAMESPACES = {\n//     svg: 'http://www.w3.org/2000/svg',\n//     html: 'http://www.w3.org/1999/xhtml',\n//     xml: 'http://www.w3.org/XML/1998/namespace',\n//     xlink: 'http://www.w3.org/1999/xlink',\n//     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n// }\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    //#region ---- Internal Methods ----\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                if (attrib === 'class' && Array.isArray(comp.attributes[attrib])) comp.attributes[attrib].join(' ')\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    /** External alias for _uiComposeComponent\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n    } // --- end of _uiManager ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    //#endregion ---- -------- ----\n    //#region ---- External Methods ----\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += msg.payload\n        if (ui.content) content += ui.content\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        this._uiManager(msg)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName !== null && propName !== '') {\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    // Nightmare of different object types in a DOM Element!\n                    if (prop.constructor.name === 'NamedNodeMap') { // Attributes\n                        const p = {}\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                        out.push(p)\n                    } else if (!prop.constructor.name.toLowerCase().includes('map')) { // Ordinary properties\n                        out.push({\n                            [propName]: prop\n                        })\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                        out.push(p)\n                    }\n                }\n\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    //#endregion ---- -------- ----\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n"],
+  "mappings": 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+  "names": ["require_ui", "__commonJSMin", "exports", "module", "_a", "Ui", "win", "extLog", "jsonHighlight", "__publicField", "config", "notify", "resolve", "reject", "ev", "ui", "isRecurse", "compToAdd", "i", "newEl", "elParent", "el", "comp", "attrib", "type", "evt", "err", "prop", "parentEl", "components", "ns", "component", "__toESM", "__require", "script", "sheet", "msg", "all", "compToRemove", "els", "compToReplace", "elToReplace", "compToUpd", "elToUpd", "mdText", "opts", "str", "lang", "md", "url", "uiOptions", "response", "error", "contentType", "slot", "txtReturn", "data", "newScript", "textFn", "newStyle", "node", "cssSelector", "thisOut", "listEntries", "bodyEntries", "headEntries", "cols", "v", "permit", "html", "content", "toaster", "toast", "json", "propName", "selection", "out", "p", "key"]
 }
diff --git a/front-end/uibuilder.esm.js b/front-end/uibuilder.esm.js
index 4f6d2377..9e2a381a 100644
--- a/front-end/uibuilder.esm.js
+++ b/front-end/uibuilder.esm.js
@@ -88,210 +88,7 @@ var require_ui = __commonJS({
           this.syntaxHighlight = function() {
           };
       }
-      /** Directly manage UI via JSON
-       * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions
-       */
-      ui(json) {
-        let msg = {};
-        if (json._ui)
-          msg = json;
-        else
-          msg._ui = json;
-        this._uiManager(msg);
-      }
-      // TODO Add multi-slot
-      /** Replace or add an HTML element's slot from text or an HTML string
-       * Will use DOMPurify if that library has been loaded to window.
-       * param {*} ui Single entry from the msg._ui property
-       * @param {Element} el Reference to the element that we want to update
-       * @param {*} component The component we are trying to add/replace
-       */
-      replaceSlot(el, component) {
-        if (!component.slot)
-          return;
-        if (!el)
-          return;
-        if (this.window["DOMPurify"])
-          component.slot = this.window["DOMPurify"].sanitize(component.slot);
-        el.innerHTML = component.slot;
-      }
-      /** Converts markdown text input to HTML if the Markdown-IT library is loaded
-       * Otherwise simply returns the text
-       * @param {string} mdText The input markdown string
-       * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text
-       */
-      convertMarkdown(mdText) {
-        if (!mdText)
-          return "";
-        if (!this.window["markdownit"])
-          return mdText;
-        const opts = {
-          // eslint-disable-line object-shorthand
-          html: true,
-          linkify: true,
-          _highlight: true,
-          langPrefix: "language-",
-          highlight(str, lang) {
-            if (lang && this.window["hljs"] && this.window["hljs"].getLanguage(lang)) {
-              try {
-                return `<pre class="highlight" data-language="${lang.toUpperCase()}">
-                                <code class="language-${lang}">${this.window["hljs"].highlightAuto(str).value}</code></pre>`;
-              } finally {
-              }
-            }
-            return `<pre class="highlight"><code>${md.utils.escapeHtml(str)}</code></pre>`;
-          }
-        };
-        const md = this.window["markdownit"](opts);
-        return md.render(mdText);
-      }
-      /** Sanitise HTML to make it safe - if the DOMPurify library is loaded
-       * Otherwise just returns that HTML as-is.
-       * @param {string} html The input HTML string
-       * @returns {string} The sanitised HTML or the original if DOMPurify not loaded
-       */
-      sanitiseHTML(html) {
-        if (!this.window["DOMPurify"])
-          return html;
-        return this.window["DOMPurify"].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs });
-      }
-      /** Replace or add an HTML element's slot from a Markdown string
-       * Only does something if the markdownit library has been loaded to window.
-       * Will use DOMPurify if that library has been loaded to window.
-       * @param {Element} el Reference to the element that we want to update
-       * @param {*} component The component we are trying to add/replace
-       */
-      replaceSlotMarkdown(el, component) {
-        if (!el)
-          return;
-        if (!component.slotMarkdown)
-          return;
-        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown);
-        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown);
-        el.innerHTML = component.slotMarkdown;
-      }
-      /** Attach a new remote script to the end of HEAD synchronously
-       * NOTE: It takes too long for most scripts to finish loading
-       *       so this is pretty useless to work with the dynamic UI features directly.
-       * @param {string} url The url to be used in the script src attribute
-       */
-      loadScriptSrc(url2) {
-        const newScript = this.document.createElement("script");
-        newScript.src = url2;
-        newScript.async = false;
-        this.document.head.appendChild(newScript);
-      }
-      /** Attach a new remote stylesheet link to the end of HEAD synchronously
-       * NOTE: It takes too long for most scripts to finish loading
-       *       so this is pretty useless to work with the dynamic UI features directly.
-       * @param {string} url The url to be used in the style link href attribute
-       */
-      loadStyleSrc(url2) {
-        const newStyle = this.document.createElement("link");
-        newStyle.href = url2;
-        newStyle.rel = "stylesheet";
-        newStyle.type = "text/css";
-        this.document.head.appendChild(newStyle);
-      }
-      /** Attach a new text script to the end of HEAD synchronously
-       * NOTE: It takes too long for most scripts to finish loading
-       *       so this is pretty useless to work with the dynamic UI features directly.
-       * @param {string} textFn The text to be loaded as a script
-       */
-      loadScriptTxt(textFn) {
-        const newScript = this.document.createElement("script");
-        newScript.async = false;
-        newScript.textContent = textFn;
-        this.document.head.appendChild(newScript);
-      }
-      /** Attach a new text stylesheet to the end of HEAD synchronously
-       * NOTE: It takes too long for most scripts to finish loading
-       *       so this is pretty useless to work with the dynamic UI features directly.
-       * @param {string} textFn The text to be loaded as a stylesheet
-       */
-      loadStyleTxt(textFn) {
-        const newStyle = this.document.createElement("style");
-        newStyle.textContent = textFn;
-        this.document.head.appendChild(newStyle);
-      }
-      /** Show a pop-over "toast" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen
-       * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,
-       *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,
-       *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/
-       * @param {"notify"|"alert"} type Dialog type
-       * @param {object} ui standardised ui data
-       * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.
-       * @returns {void}
-       */
-      showDialog(type, ui, msg) {
-        let content = "";
-        if (msg.payload && typeof msg.payload === "string")
-          content += msg.payload;
-        if (ui.content)
-          content += ui.content;
-        if (content === "") {
-          _a2.log(1, "Ui:showDialog", "Toast content is blank. Not shown.")();
-          return;
-        }
-        if (!ui.title && msg.topic)
-          ui.title = msg.topic;
-        if (ui.title)
-          content = `<p class="toast-head">${ui.title}</p><p>${content}</p>`;
-        if (ui.noAutohide)
-          ui.noAutoHide = ui.noAutohide;
-        if (ui.noAutoHide)
-          ui.autohide = !ui.noAutoHide;
-        if (ui.autoHideDelay) {
-          if (!ui.autohide)
-            ui.autohide = true;
-          ui.delay = ui.autoHideDelay;
-        } else
-          ui.autoHideDelay = 1e4;
-        if (!Object.prototype.hasOwnProperty.call(ui, "autohide"))
-          ui.autohide = true;
-        if (type === "alert") {
-          ui.modal = true;
-          ui.autohide = false;
-          content = `<svg viewBox="0 0 192.146 192.146" style="width:30;background-color:transparent;"><path d="M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z" /></svg> ${content}`;
-        }
-        let toaster = this.document.getElementById("toaster");
-        if (toaster === null) {
-          toaster = this.document.createElement("div");
-          toaster.id = "toaster";
-          toaster.title = "Click to clear all notifcations";
-          toaster.setAttribute("class", "toaster");
-          toaster.setAttribute("role", "dialog");
-          toaster.setAttribute("arial-label", "Toast message");
-          toaster.onclick = function() {
-            toaster.remove();
-          };
-          this.document.body.insertAdjacentElement("afterbegin", toaster);
-        }
-        const toast = this.document.createElement("div");
-        toast.title = "Click to clear this notifcation";
-        toast.setAttribute("class", `toast ${ui.variant ? ui.variant : ""} ${type}`);
-        toast.innerHTML = content;
-        toast.setAttribute("role", "alertdialog");
-        if (ui.modal)
-          toast.setAttribute("aria-modal", ui.modal);
-        toast.onclick = function(evt) {
-          evt.stopPropagation();
-          toast.remove();
-          if (toaster.childElementCount < 1)
-            toaster.remove();
-        };
-        if (type === "alert") {
-        }
-        toaster.insertAdjacentElement(ui.appendToast === true ? "beforeend" : "afterbegin", toast);
-        if (ui.autohide === true) {
-          setInterval(() => {
-            toast.remove();
-            if (toaster.childElementCount < 1)
-              toaster.remove();
-          }, ui.autoHideDelay);
-        }
-      }
-      // --- End of showDialog ---
+      //#region ---- Internal Methods ----
       /** Show a browser notification if the browser and the user allows it
        * @param {object} config Notification config data
        * @returns {Promise} Resolves on close or click event, returns the event.
@@ -325,74 +122,81 @@ var require_ui = __commonJS({
           return Promise.reject(new Error("Browser refused to create a Notification"));
         }
       }
-      /** Show a browser notification if possible. Returns a promise
-       * Config can be a simple string, a Node-RED msg (topic as title, payload as body)
-       * or a Notifications API options object + config.title string.
-       * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification
-       * @param {object|string} config Notification config object or simple message string
-       * @returns {Promise} Resolves on close or click event, returns the event.
-       */
-      async notification(config) {
-        if (typeof config === "string") {
-          config = { body: config };
-        }
-        if (typeof Notification === "undefined")
-          return Promise.reject(new Error("Notifications not available in this browser"));
-        let permit = Notification.permission;
-        if (permit === "denied") {
-          return Promise.reject(new Error("Notifications not permitted by user"));
-        } else if (permit === "granted") {
-          return this._showNotification(config);
-        } else {
-          permit = await Notification.requestPermission();
-          if (permit === "granted") {
-            return this._showNotification(config);
-          }
-          return Promise.reject(new Error("Notifications not permitted by user"));
-        }
-      }
-      /** Load a dynamic UI from a JSON web reponse
-       * @param {string} url URL that will return the ui JSON
+      // Vue dynamic inserts Don't really work ...
+      // _uiAddVue(ui, isRecurse) {
+      //     // must be Vue
+      //     // must have only 1 root element
+      //     const compToAdd = ui.components[0]
+      //     const newEl = this.document.createElement(compToAdd.type)
+      //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload
+      //     this._uiComposeComponent(newEl, compToAdd)
+      //     // If nested components, go again - but don't pass payload to sub-components
+      //     if (compToAdd.components) {
+      //         this._uiExtendEl(newEl, compToAdd.components)
+      //     }
+      //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()
+      //     this.set('magick', newEl.outerHTML)
+      //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)
+      //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)
+      // }
+      // TODO Add check if ID already exists
+      // TODO Allow single add without using components array
+      /** Handle incoming msg._ui add requests
+       * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object
+       * @param {boolean} isRecurse Is this a recursive call?
        */
-      loadui(url2) {
-        if (!fetch) {
-          _a2.log(0, "Ui:loadui", "Current environment does not include `fetch`, skipping.")();
-          return;
-        }
-        if (!url2) {
-          _a2.log(0, "Ui:loadui", "url parameter must be provided, skipping.")();
-          return;
-        }
-        fetch(url2).then((response) => {
-          if (response.ok === false) {
-            throw new Error(`Could not load '${url2}'. Status ${response.status}, Error: ${response.statusText}`);
+      _uiAdd(ui, isRecurse) {
+        _a2.log("trace", "Ui:_uiManager:add", "Starting _uiAdd")();
+        ui.components.forEach((compToAdd, i2) => {
+          _a2.log("trace", `Ui:_uiAdd:components-forEach:${i2}`, "Component to add: ", compToAdd)();
+          let newEl;
+          switch (compToAdd.type) {
+            case "html": {
+              compToAdd.ns = "html";
+              newEl = this.document.createElement("div");
+              break;
+            }
+            case "svg": {
+              compToAdd.ns = "svg";
+              newEl = this.document.createElementNS("http://www.w3.org/2000/svg", "svg");
+              break;
+            }
+            default: {
+              compToAdd.ns = "dom";
+              newEl = this.document.createElement(compToAdd.type);
+              break;
+            }
           }
-          _a2.log("trace", "Ui:loadui:then1", `Loaded '${url2}'. Status ${response.status}, ${response.statusText}`)();
-          const contentType = response.headers.get("content-type");
-          if (!contentType || !contentType.includes("application/json")) {
-            throw new TypeError(`Fetch '${url2}' did not return JSON, ignoring`);
+          if (!compToAdd.slot && ui.payload)
+            compToAdd.slot = ui.payload;
+          this._uiComposeComponent(newEl, compToAdd);
+          let elParent;
+          if (compToAdd.parentEl) {
+            elParent = compToAdd.parentEl;
+          } else if (ui.parentEl) {
+            elParent = ui.parentEl;
+          } else if (compToAdd.parent) {
+            elParent = this.document.querySelector(compToAdd.parent);
+          } else if (ui.parent) {
+            elParent = this.document.querySelector(ui.parent);
           }
-          return response.json();
-        }).then((data) => {
-          if (data !== void 0) {
-            _a2.log("trace", "Ui:loadui:then2", "Parsed JSON successfully obtained")();
-            this._uiManager({ _ui: data });
-            return true;
+          if (!elParent) {
+            _a2.log("info", "Ui:_uiAdd", "No parent found, adding to body")();
+            elParent = this.document.querySelector("body");
+          }
+          if (compToAdd.position && compToAdd.position === "first") {
+            elParent.insertBefore(newEl, elParent.firstChild);
+          } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {
+            elParent.insertBefore(newEl, elParent.children[compToAdd.position]);
+          } else {
+            elParent.appendChild(newEl);
+          }
+          if (compToAdd.components) {
+            this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns);
           }
-          return false;
-        }).catch((err) => {
-          _a2.log("warn", "Ui:loadui:catch", "Error. ", err)();
         });
       }
-      // --- end of loadui
-      // Namespaces - See https://stackoverflow.com/a/52572048/1309986
-      // const NAMESPACES = {
-      //     svg: 'http://www.w3.org/2000/svg',
-      //     html: 'http://www.w3.org/1999/xhtml',
-      //     xml: 'http://www.w3.org/XML/1998/namespace',
-      //     xlink: 'http://www.w3.org/1999/xlink',
-      //     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...
-      // }
+      // --- end of _uiAdd ---
       /** Enhance an HTML element that is being composed with ui data
        *  such as ID, attribs, event handlers, custom props, etc.
        * @param {*} el HTML Element to enhance
@@ -401,6 +205,8 @@ var require_ui = __commonJS({
       _uiComposeComponent(el, comp) {
         if (comp.attributes) {
           Object.keys(comp.attributes).forEach((attrib) => {
+            if (attrib === "class" && Array.isArray(comp.attributes[attrib]))
+              comp.attributes[attrib].join(" ");
             if (attrib === "value")
               el.value = comp.attributes[attrib];
             if (attrib.startsWith("xlink:"))
@@ -475,81 +281,111 @@ var require_ui = __commonJS({
           }
         });
       }
-      // Vue dynamic inserts Don't really work ...
-      // _uiAddVue(ui, isRecurse) {
-      //     // must be Vue
-      //     // must have only 1 root element
-      //     const compToAdd = ui.components[0]
-      //     const newEl = this.document.createElement(compToAdd.type)
-      //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload
-      //     this._uiComposeComponent(newEl, compToAdd)
-      //     // If nested components, go again - but don't pass payload to sub-components
-      //     if (compToAdd.components) {
-      //         this._uiExtendEl(newEl, compToAdd.components)
-      //     }
-      //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()
-      //     this.set('magick', newEl.outerHTML)
-      //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)
-      //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)
-      // }
-      // TODO Add check if ID already exists
-      // TODO Allow single add without using components array
-      /** Handle incoming msg._ui add requests
+      // TODO Add more error handling and parameter validation
+      /** Handle incoming _ui load requests
+       * Can load JavaScript modules, JavaScript scripts and CSS.
        * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object
-       * @param {boolean} isRecurse Is this a recursive call?
        */
-      _uiAdd(ui, isRecurse) {
-        _a2.log("trace", "Ui:_uiManager:add", "Starting _uiAdd")();
-        ui.components.forEach((compToAdd, i2) => {
-          _a2.log("trace", `Ui:_uiAdd:components-forEach:${i2}`, "Component to add: ", compToAdd)();
-          let newEl;
-          switch (compToAdd.type) {
-            case "html": {
-              compToAdd.ns = "html";
-              newEl = this.document.createElement("div");
+      _uiLoad(ui) {
+        if (ui.components) {
+          if (!Array.isArray(ui.components))
+            ui.components = [ui.components];
+          ui.components.forEach(async (component) => {
+            await import(component);
+          });
+        }
+        if (ui.srcScripts) {
+          if (!Array.isArray(ui.srcScripts))
+            ui.srcScripts = [ui.srcScripts];
+          ui.srcScripts.forEach((script) => {
+            this.loadScriptSrc(script);
+          });
+        }
+        if (ui.txtScripts) {
+          if (!Array.isArray(ui.txtScripts))
+            ui.txtScripts = [ui.txtScripts];
+          this.loadScriptTxt(ui.txtScripts.join("\n"));
+        }
+        if (ui.srcStyles) {
+          if (!Array.isArray(ui.srcStyles))
+            ui.srcStyles = [ui.srcStyles];
+          ui.srcStyles.forEach((sheet) => {
+            this.loadStyleSrc(sheet);
+          });
+        }
+        if (ui.txtStyles) {
+          if (!Array.isArray(ui.txtStyles))
+            ui.txtStyles = [ui.txtStyles];
+          this.loadStyleTxt(ui.txtStyles.join("\n"));
+        }
+      }
+      // --- end of _uiLoad ---
+      /** Handle incoming _ui messages and loaded UI JSON files
+       * Called from start()
+       * @param {*} msg Standardised msg object containing a _ui property object
+       */
+      _uiManager(msg) {
+        if (!msg._ui)
+          return;
+        if (!Array.isArray(msg._ui))
+          msg._ui = [msg._ui];
+        msg._ui.forEach((ui, i2) => {
+          if (!ui.method) {
+            _a2.log("error", "Ui:_uiManager", `No method defined for msg._ui[${i2}]. Ignoring`)();
+            return;
+          }
+          ui.payload = msg.payload;
+          ui.topic = msg.topic;
+          switch (ui.method) {
+            case "add": {
+              this._uiAdd(ui, false);
               break;
             }
-            case "svg": {
-              compToAdd.ns = "svg";
-              newEl = this.document.createElementNS("http://www.w3.org/2000/svg", "svg");
+            case "remove": {
+              this._uiRemove(ui, false);
+              break;
+            }
+            case "removeAll": {
+              this._uiRemove(ui, true);
+              break;
+            }
+            case "replace": {
+              this._uiReplace(ui);
+              break;
+            }
+            case "update": {
+              this._uiUpdate(ui);
+              break;
+            }
+            case "load": {
+              this._uiLoad(ui);
+              break;
+            }
+            case "reload": {
+              this._uiReload();
+              break;
+            }
+            case "notify": {
+              this.showDialog("notify", ui, msg);
+              break;
+            }
+            case "alert": {
+              this.showDialog("alert", ui, msg);
               break;
             }
             default: {
-              compToAdd.ns = "dom";
-              newEl = this.document.createElement(compToAdd.type);
+              _a2.log("error", "Ui:_uiManager", `Invalid msg._ui[${i2}].method (${ui.method}). Ignoring`)();
               break;
             }
           }
-          if (!compToAdd.slot && ui.payload)
-            compToAdd.slot = ui.payload;
-          this._uiComposeComponent(newEl, compToAdd);
-          let elParent;
-          if (compToAdd.parentEl) {
-            elParent = compToAdd.parentEl;
-          } else if (ui.parentEl) {
-            elParent = ui.parentEl;
-          } else if (compToAdd.parent) {
-            elParent = this.document.querySelector(compToAdd.parent);
-          } else if (ui.parent) {
-            elParent = this.document.querySelector(ui.parent);
-          }
-          if (!elParent) {
-            _a2.log("info", "Ui:_uiAdd", "No parent found, adding to body")();
-            elParent = this.document.querySelector("body");
-          }
-          if (compToAdd.position && compToAdd.position === "first") {
-            elParent.insertBefore(newEl, elParent.firstChild);
-          } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {
-            elParent.insertBefore(newEl, elParent.children[compToAdd.position]);
-          } else {
-            elParent.appendChild(newEl);
-          }
-          if (compToAdd.components) {
-            this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns);
-          }
         });
       }
-      // --- end of _uiAdd ---
+      // --- end of _uiManager ---
+      /** Handle a reload request */
+      _uiReload() {
+        _a2.log("trace", "Ui:uiManager:reload", "reloading")();
+        location.reload();
+      }
       // TODO Add better tests for failures (see comments)
       /** Handle incoming _ui remove requests
        * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object
@@ -666,182 +502,463 @@ var require_ui = __commonJS({
         });
       }
       // --- end of _uiUpdate ---
-      // TODO Add more error handling and parameter validation
-      /** Handle incoming _ui load requests
-       * Can load JavaScript modules, JavaScript scripts and CSS.
-       * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object
+      //#endregion ---- -------- ----
+      //#region ---- External Methods ----
+      /** Converts markdown text input to HTML if the Markdown-IT library is loaded
+       * Otherwise simply returns the text
+       * @param {string} mdText The input markdown string
+       * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text
        */
-      _uiLoad(ui) {
-        if (ui.components) {
-          if (!Array.isArray(ui.components))
-            ui.components = [ui.components];
-          ui.components.forEach(async (component) => {
-            await import(component);
-          });
-        }
-        if (ui.srcScripts) {
-          if (!Array.isArray(ui.srcScripts))
-            ui.srcScripts = [ui.srcScripts];
-          ui.srcScripts.forEach((script) => {
-            this.loadScriptSrc(script);
-          });
-        }
-        if (ui.txtScripts) {
-          if (!Array.isArray(ui.txtScripts))
-            ui.txtScripts = [ui.txtScripts];
-          this.loadScriptTxt(ui.txtScripts.join("\n"));
-        }
-        if (ui.srcStyles) {
-          if (!Array.isArray(ui.srcStyles))
-            ui.srcStyles = [ui.srcStyles];
-          ui.srcStyles.forEach((sheet) => {
-            this.loadStyleSrc(sheet);
-          });
+      convertMarkdown(mdText) {
+        if (!mdText)
+          return "";
+        if (!this.window["markdownit"])
+          return mdText;
+        const opts = {
+          // eslint-disable-line object-shorthand
+          html: true,
+          linkify: true,
+          _highlight: true,
+          langPrefix: "language-",
+          highlight(str, lang) {
+            if (lang && this.window["hljs"] && this.window["hljs"].getLanguage(lang)) {
+              try {
+                return `<pre class="highlight" data-language="${lang.toUpperCase()}">
+                                <code class="language-${lang}">${this.window["hljs"].highlightAuto(str).value}</code></pre>`;
+              } finally {
+              }
+            }
+            return `<pre class="highlight"><code>${md.utils.escapeHtml(str)}</code></pre>`;
+          }
+        };
+        const md = this.window["markdownit"](opts);
+        return md.render(mdText);
+      }
+      /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API
+       * Wraps the included object in a div tag.
+       * PDF's, text or unknown MIME types are also wrapped in an iFrame.
+       * @param {string} url The URL of the source file to include
+       * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id
+       * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag
+       * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')
+       * @returns {Promise<any>} Status
+       */
+      async include(url2, uiOptions) {
+        if (!fetch) {
+          _a2.log(0, "Ui:include", "Current environment does not include `fetch`, skipping.")();
+          return "Current environment does not include `fetch`, skipping.";
         }
-        if (ui.txtStyles) {
-          if (!Array.isArray(ui.txtStyles))
-            ui.txtStyles = [ui.txtStyles];
-          this.loadStyleTxt(ui.txtStyles.join("\n"));
+        if (!url2) {
+          _a2.log(0, "Ui:include", "url parameter must be provided, skipping.")();
+          return "url parameter must be provided, skipping.";
+        }
+        if (!uiOptions || !uiOptions.id) {
+          _a2.log(0, "Ui:include", "uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.")();
+          return "uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.";
+        }
+        let response;
+        try {
+          response = await fetch(url2);
+        } catch (error) {
+          _a2.log(0, "Ui:include", `Fetch of file '${url2}' failed. `, error.message)();
+          return error.message;
+        }
+        if (!response.ok) {
+          _a2.log(0, "Ui:include", `Fetch of file '${url2}' failed. Status='${response.statusText}'`)();
+          return response.statusText;
+        }
+        const contentType = await response.headers.get("content-type");
+        let type = null;
+        if (contentType) {
+          if (contentType.includes("text/html")) {
+            type = "html";
+          } else if (contentType.includes("application/json")) {
+            type = "json";
+          } else if (contentType.includes("multipart/form-data")) {
+            type = "form";
+          } else if (contentType.includes("image/")) {
+            type = "image";
+          } else if (contentType.includes("video/")) {
+            type = "video";
+          } else if (contentType.includes("application/pdf")) {
+            type = "pdf";
+          } else if (contentType.includes("text/plain")) {
+            type = "text";
+          }
+        }
+        let slot = "";
+        let txtReturn = "Include successful";
+        let data;
+        switch (type) {
+          case "html": {
+            data = await response.text();
+            slot = data;
+            break;
+          }
+          case "json": {
+            data = await response.json();
+            slot = '<pre class="syntax-highlight">';
+            slot += this.syntaxHighlight(data);
+            slot += "</pre>";
+            break;
+          }
+          case "form": {
+            data = await response.formData();
+            slot = '<pre class="syntax-highlight">';
+            slot += this.syntaxHighlight(data);
+            slot += "</pre>";
+            break;
+          }
+          case "image": {
+            data = await response.blob();
+            slot = `<img src="${URL.createObjectURL(data)}">`;
+            if (this.window["DOMPurify"]) {
+              txtReturn = "Include successful. BUT DOMPurify loaded which may block its use.";
+              _a2.log("warn", "Ui:include:image", txtReturn)();
+            }
+            break;
+          }
+          case "video": {
+            data = await response.blob();
+            slot = `<video controls autoplay><source src="${URL.createObjectURL(data)}"></video>`;
+            if (this.window["DOMPurify"]) {
+              txtReturn = "Include successful. BUT DOMPurify loaded which may block its use.";
+              _a2.log("warn", "Ui:include:video", txtReturn)();
+            }
+            break;
+          }
+          case "pdf":
+          case "text":
+          default: {
+            data = await response.blob();
+            slot = `<iframe style="resize:both;width:inherit;height:inherit;" src="${URL.createObjectURL(data)}">`;
+            if (this.window["DOMPurify"]) {
+              txtReturn = "Include successful. BUT DOMPurify loaded which may block its use.";
+              _a2.log("warn", `Ui:include:${type}`, txtReturn)();
+            }
+            break;
+          }
         }
+        uiOptions.type = "div";
+        uiOptions.slot = slot;
+        if (!uiOptions.parent)
+          uiOptions.parent = "body";
+        if (!uiOptions.attributes)
+          uiOptions.attributes = { class: "included" };
+        this._uiReplace({
+          components: [
+            uiOptions
+          ]
+        });
+        _a2.log("trace", `Ui:include:${type}`, txtReturn)();
+        return txtReturn;
       }
-      // --- end of _uiLoad ---
-      /** Handle a reload request */
-      _uiReload() {
-        _a2.log("trace", "Ui:uiManager:reload", "reloading")();
-        location.reload();
+      // ---- End of include() ---- //
+      /** Attach a new remote script to the end of HEAD synchronously
+       * NOTE: It takes too long for most scripts to finish loading
+       *       so this is pretty useless to work with the dynamic UI features directly.
+       * @param {string} url The url to be used in the script src attribute
+       */
+      loadScriptSrc(url2) {
+        const newScript = this.document.createElement("script");
+        newScript.src = url2;
+        newScript.async = false;
+        this.document.head.appendChild(newScript);
       }
-      /** Handle incoming _ui messages and loaded UI JSON files
-       * Called from start()
-       * @param {*} msg Standardised msg object containing a _ui property object
+      /** Attach a new text script to the end of HEAD synchronously
+       * NOTE: It takes too long for most scripts to finish loading
+       *       so this is pretty useless to work with the dynamic UI features directly.
+       * @param {string} textFn The text to be loaded as a script
        */
-      _uiManager(msg) {
-        if (!msg._ui)
+      loadScriptTxt(textFn) {
+        const newScript = this.document.createElement("script");
+        newScript.async = false;
+        newScript.textContent = textFn;
+        this.document.head.appendChild(newScript);
+      }
+      /** Attach a new remote stylesheet link to the end of HEAD synchronously
+       * NOTE: It takes too long for most scripts to finish loading
+       *       so this is pretty useless to work with the dynamic UI features directly.
+       * @param {string} url The url to be used in the style link href attribute
+       */
+      loadStyleSrc(url2) {
+        const newStyle = this.document.createElement("link");
+        newStyle.href = url2;
+        newStyle.rel = "stylesheet";
+        newStyle.type = "text/css";
+        this.document.head.appendChild(newStyle);
+      }
+      /** Attach a new text stylesheet to the end of HEAD synchronously
+       * NOTE: It takes too long for most scripts to finish loading
+       *       so this is pretty useless to work with the dynamic UI features directly.
+       * @param {string} textFn The text to be loaded as a stylesheet
+       */
+      loadStyleTxt(textFn) {
+        const newStyle = this.document.createElement("style");
+        newStyle.textContent = textFn;
+        this.document.head.appendChild(newStyle);
+      }
+      /** Load a dynamic UI from a JSON web reponse
+       * @param {string} url URL that will return the ui JSON
+       */
+      loadui(url2) {
+        if (!fetch) {
+          _a2.log(0, "Ui:loadui", "Current environment does not include `fetch`, skipping.")();
           return;
-        if (!Array.isArray(msg._ui))
-          msg._ui = [msg._ui];
-        msg._ui.forEach((ui, i2) => {
-          if (!ui.method) {
-            _a2.log("error", "Ui:_uiManager", `No method defined for msg._ui[${i2}]. Ignoring`)();
-            return;
+        }
+        if (!url2) {
+          _a2.log(0, "Ui:loadui", "url parameter must be provided, skipping.")();
+          return;
+        }
+        fetch(url2).then((response) => {
+          if (response.ok === false) {
+            throw new Error(`Could not load '${url2}'. Status ${response.status}, Error: ${response.statusText}`);
           }
-          ui.payload = msg.payload;
-          ui.topic = msg.topic;
-          switch (ui.method) {
-            case "add": {
-              this._uiAdd(ui, false);
-              break;
-            }
-            case "remove": {
-              this._uiRemove(ui, false);
-              break;
-            }
-            case "removeAll": {
-              this._uiRemove(ui, true);
-              break;
-            }
-            case "replace": {
-              this._uiReplace(ui);
-              break;
-            }
-            case "update": {
-              this._uiUpdate(ui);
-              break;
-            }
-            case "load": {
-              this._uiLoad(ui);
-              break;
-            }
-            case "reload": {
-              this._uiReload();
-              break;
-            }
-            case "notify": {
-              this.showDialog("notify", ui, msg);
-              break;
-            }
-            case "alert": {
-              this.showDialog("alert", ui, msg);
-              break;
-            }
-            default: {
-              _a2.log("error", "Ui:_uiManager", `Invalid msg._ui[${i2}].method (${ui.method}). Ignoring`)();
-              break;
-            }
+          _a2.log("trace", "Ui:loadui:then1", `Loaded '${url2}'. Status ${response.status}, ${response.statusText}`)();
+          const contentType = response.headers.get("content-type");
+          if (!contentType || !contentType.includes("application/json")) {
+            throw new TypeError(`Fetch '${url2}' did not return JSON, ignoring`);
+          }
+          return response.json();
+        }).then((data) => {
+          if (data !== void 0) {
+            _a2.log("trace", "Ui:loadui:then2", "Parsed JSON successfully obtained")();
+            this._uiManager({ _ui: data });
+            return true;
           }
+          return false;
+        }).catch((err) => {
+          _a2.log("warn", "Ui:loadui:catch", "Error. ", err)();
         });
       }
-      // --- end of _uiManager ---
+      // --- end of loadui
       /** Get standard data from a DOM node.
        * @param {*} node DOM node to examine
        * @param {string} cssSelector Identify the DOM element to get data from
        * @returns {object} Standardised data object
        */
-      nodeGet(node, cssSelector) {
-        const thisOut = {
-          id: node.id === "" ? void 0 : node.id,
-          name: node.name,
-          children: node.childNodes.length,
-          type: node.nodeName,
-          attributes: void 0,
-          isUserInput: node.validity ? true : false,
-          // eslint-disable-line no-unneeded-ternary
-          userInput: !node.validity ? void 0 : {
-            // eslint-disable-line multiline-ternary
-            value: node.value,
-            validity: void 0,
-            willValidate: node.willValidate,
-            valueAsDate: node.valueAsDate,
-            valueAsNumber: node.valueAsNumber,
-            type: node.type
-          }
-        };
-        if (["UL", "OL"].includes(node.nodeName)) {
-          const listEntries = this.document.querySelectorAll(`${cssSelector} li`);
-          if (listEntries) {
-            thisOut.list = {
-              "entries": listEntries.length
-            };
-          }
-        }
-        if (node.nodeName === "DL") {
-          const listEntries = this.document.querySelectorAll(`${cssSelector} dt`);
-          if (listEntries) {
-            thisOut.list = {
-              "entries": listEntries.length
-            };
-          }
+      nodeGet(node, cssSelector) {
+        const thisOut = {
+          id: node.id === "" ? void 0 : node.id,
+          name: node.name,
+          children: node.childNodes.length,
+          type: node.nodeName,
+          attributes: void 0,
+          isUserInput: node.validity ? true : false,
+          // eslint-disable-line no-unneeded-ternary
+          userInput: !node.validity ? void 0 : {
+            // eslint-disable-line multiline-ternary
+            value: node.value,
+            validity: void 0,
+            willValidate: node.willValidate,
+            valueAsDate: node.valueAsDate,
+            valueAsNumber: node.valueAsNumber,
+            type: node.type
+          }
+        };
+        if (["UL", "OL"].includes(node.nodeName)) {
+          const listEntries = this.document.querySelectorAll(`${cssSelector} li`);
+          if (listEntries) {
+            thisOut.list = {
+              "entries": listEntries.length
+            };
+          }
+        }
+        if (node.nodeName === "DL") {
+          const listEntries = this.document.querySelectorAll(`${cssSelector} dt`);
+          if (listEntries) {
+            thisOut.list = {
+              "entries": listEntries.length
+            };
+          }
+        }
+        if (node.nodeName === "TABLE") {
+          const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`);
+          const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`);
+          const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`);
+          if (bodyEntries || headEntries || cols) {
+            thisOut.table = {
+              "headRows": headEntries ? headEntries.length : 0,
+              "bodyRows": bodyEntries ? bodyEntries.length : 0,
+              "columns": cols ? cols.length : 0
+            };
+          }
+        }
+        if (node.nodeName !== "#text" && node.attributes && node.attributes.length > 0) {
+          thisOut.attributes = {};
+          for (const attrib of node.attributes) {
+            if (attrib.name !== "id") {
+              thisOut.attributes[attrib.name] = node.attributes[attrib.name].value;
+            }
+          }
+        }
+        if (node.nodeName === "#text") {
+          thisOut.text = node.textContent;
+        }
+        if (node.validity)
+          thisOut.userInput.validity = {};
+        for (const v in node.validity) {
+          thisOut.userInput.validity[v] = node.validity[v];
+        }
+        return thisOut;
+      }
+      // --- end of nodeGet --- //
+      /** Show a browser notification if possible. Returns a promise
+       * Config can be a simple string, a Node-RED msg (topic as title, payload as body)
+       * or a Notifications API options object + config.title string.
+       * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification
+       * @param {object|string} config Notification config object or simple message string
+       * @returns {Promise} Resolves on close or click event, returns the event.
+       */
+      async notification(config) {
+        if (typeof config === "string") {
+          config = { body: config };
+        }
+        if (typeof Notification === "undefined")
+          return Promise.reject(new Error("Notifications not available in this browser"));
+        let permit = Notification.permission;
+        if (permit === "denied") {
+          return Promise.reject(new Error("Notifications not permitted by user"));
+        } else if (permit === "granted") {
+          return this._showNotification(config);
+        } else {
+          permit = await Notification.requestPermission();
+          if (permit === "granted") {
+            return this._showNotification(config);
+          }
+          return Promise.reject(new Error("Notifications not permitted by user"));
+        }
+      }
+      // TODO Add multi-slot
+      /** Replace or add an HTML element's slot from text or an HTML string
+       * Will use DOMPurify if that library has been loaded to window.
+       * param {*} ui Single entry from the msg._ui property
+       * @param {Element} el Reference to the element that we want to update
+       * @param {*} component The component we are trying to add/replace
+       */
+      replaceSlot(el, component) {
+        if (!component.slot)
+          return;
+        if (!el)
+          return;
+        if (this.window["DOMPurify"])
+          component.slot = this.window["DOMPurify"].sanitize(component.slot);
+        el.innerHTML = component.slot;
+      }
+      /** Replace or add an HTML element's slot from a Markdown string
+       * Only does something if the markdownit library has been loaded to window.
+       * Will use DOMPurify if that library has been loaded to window.
+       * @param {Element} el Reference to the element that we want to update
+       * @param {*} component The component we are trying to add/replace
+       */
+      replaceSlotMarkdown(el, component) {
+        if (!el)
+          return;
+        if (!component.slotMarkdown)
+          return;
+        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown);
+        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown);
+        el.innerHTML = component.slotMarkdown;
+      }
+      /** Sanitise HTML to make it safe - if the DOMPurify library is loaded
+       * Otherwise just returns that HTML as-is.
+       * @param {string} html The input HTML string
+       * @returns {string} The sanitised HTML or the original if DOMPurify not loaded
+       */
+      sanitiseHTML(html) {
+        if (!this.window["DOMPurify"])
+          return html;
+        return this.window["DOMPurify"].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs });
+      }
+      /** Show a pop-over "toast" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen
+       * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,
+       *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,
+       *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/
+       * @param {"notify"|"alert"} type Dialog type
+       * @param {object} ui standardised ui data
+       * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.
+       * @returns {void}
+       */
+      showDialog(type, ui, msg) {
+        let content = "";
+        if (msg.payload && typeof msg.payload === "string")
+          content += msg.payload;
+        if (ui.content)
+          content += ui.content;
+        if (content === "") {
+          _a2.log(1, "Ui:showDialog", "Toast content is blank. Not shown.")();
+          return;
         }
-        if (node.nodeName === "TABLE") {
-          const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`);
-          const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`);
-          const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`);
-          if (bodyEntries || headEntries || cols) {
-            thisOut.table = {
-              "headRows": headEntries ? headEntries.length : 0,
-              "bodyRows": bodyEntries ? bodyEntries.length : 0,
-              "columns": cols ? cols.length : 0
-            };
-          }
+        if (!ui.title && msg.topic)
+          ui.title = msg.topic;
+        if (ui.title)
+          content = `<p class="toast-head">${ui.title}</p><p>${content}</p>`;
+        if (ui.noAutohide)
+          ui.noAutoHide = ui.noAutohide;
+        if (ui.noAutoHide)
+          ui.autohide = !ui.noAutoHide;
+        if (ui.autoHideDelay) {
+          if (!ui.autohide)
+            ui.autohide = true;
+          ui.delay = ui.autoHideDelay;
+        } else
+          ui.autoHideDelay = 1e4;
+        if (!Object.prototype.hasOwnProperty.call(ui, "autohide"))
+          ui.autohide = true;
+        if (type === "alert") {
+          ui.modal = true;
+          ui.autohide = false;
+          content = `<svg viewBox="0 0 192.146 192.146" style="width:30;background-color:transparent;"><path d="M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z" /></svg> ${content}`;
         }
-        if (node.nodeName !== "#text" && node.attributes && node.attributes.length > 0) {
-          thisOut.attributes = {};
-          for (const attrib of node.attributes) {
-            if (attrib.name !== "id") {
-              thisOut.attributes[attrib.name] = node.attributes[attrib.name].value;
-            }
-          }
+        let toaster = this.document.getElementById("toaster");
+        if (toaster === null) {
+          toaster = this.document.createElement("div");
+          toaster.id = "toaster";
+          toaster.title = "Click to clear all notifcations";
+          toaster.setAttribute("class", "toaster");
+          toaster.setAttribute("role", "dialog");
+          toaster.setAttribute("arial-label", "Toast message");
+          toaster.onclick = function() {
+            toaster.remove();
+          };
+          this.document.body.insertAdjacentElement("afterbegin", toaster);
         }
-        if (node.nodeName === "#text") {
-          thisOut.text = node.textContent;
+        const toast = this.document.createElement("div");
+        toast.title = "Click to clear this notifcation";
+        toast.setAttribute("class", `toast ${ui.variant ? ui.variant : ""} ${type}`);
+        toast.innerHTML = content;
+        toast.setAttribute("role", "alertdialog");
+        if (ui.modal)
+          toast.setAttribute("aria-modal", ui.modal);
+        toast.onclick = function(evt) {
+          evt.stopPropagation();
+          toast.remove();
+          if (toaster.childElementCount < 1)
+            toaster.remove();
+        };
+        if (type === "alert") {
         }
-        if (node.validity)
-          thisOut.userInput.validity = {};
-        for (const v in node.validity) {
-          thisOut.userInput.validity[v] = node.validity[v];
+        toaster.insertAdjacentElement(ui.appendToast === true ? "beforeend" : "afterbegin", toast);
+        if (ui.autohide === true) {
+          setInterval(() => {
+            toast.remove();
+            if (toaster.childElementCount < 1)
+              toaster.remove();
+          }, ui.autoHideDelay);
         }
-        return thisOut;
       }
-      // --- end of nodeGet --- //
+      // --- End of showDialog ---
+      /** Directly manage UI via JSON
+       * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions
+       */
+      ui(json) {
+        let msg = {};
+        if (json._ui)
+          msg = json;
+        else
+          msg._ui = json;
+        this._uiManager(msg);
+      }
       /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.
        * @param {string} cssSelector Identify the DOM element to get data from
        * @param {string} [propName] Optional. Specific name of property to get from the element
@@ -893,126 +1010,7 @@ var require_ui = __commonJS({
         return out;
       }
       // --- end of uiGet --- //
-      /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API
-       * Wraps the included object in a div tag.
-       * PDF's, text or unknown MIME types are also wrapped in an iFrame.
-       * @param {string} url The URL of the source file to include
-       * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id
-       * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag
-       * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')
-       * @returns {Promise<any>} Status
-       */
-      async include(url2, uiOptions) {
-        if (!fetch) {
-          _a2.log(0, "Ui:include", "Current environment does not include `fetch`, skipping.")();
-          return "Current environment does not include `fetch`, skipping.";
-        }
-        if (!url2) {
-          _a2.log(0, "Ui:include", "url parameter must be provided, skipping.")();
-          return "url parameter must be provided, skipping.";
-        }
-        if (!uiOptions || !uiOptions.id) {
-          _a2.log(0, "Ui:include", "uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.")();
-          return "uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.";
-        }
-        let response;
-        try {
-          response = await fetch(url2);
-        } catch (error) {
-          _a2.log(0, "Ui:include", `Fetch of file '${url2}' failed. `, error.message)();
-          return error.message;
-        }
-        if (!response.ok) {
-          _a2.log(0, "Ui:include", `Fetch of file '${url2}' failed. Status='${response.statusText}'`)();
-          return response.statusText;
-        }
-        const contentType = await response.headers.get("content-type");
-        let type = null;
-        if (contentType) {
-          if (contentType.includes("text/html")) {
-            type = "html";
-          } else if (contentType.includes("application/json")) {
-            type = "json";
-          } else if (contentType.includes("multipart/form-data")) {
-            type = "form";
-          } else if (contentType.includes("image/")) {
-            type = "image";
-          } else if (contentType.includes("video/")) {
-            type = "video";
-          } else if (contentType.includes("application/pdf")) {
-            type = "pdf";
-          } else if (contentType.includes("text/plain")) {
-            type = "text";
-          }
-        }
-        let slot = "";
-        let txtReturn = "Include successful";
-        let data;
-        switch (type) {
-          case "html": {
-            data = await response.text();
-            slot = data;
-            break;
-          }
-          case "json": {
-            data = await response.json();
-            slot = '<pre class="syntax-highlight">';
-            slot += this.syntaxHighlight(data);
-            slot += "</pre>";
-            break;
-          }
-          case "form": {
-            data = await response.formData();
-            slot = '<pre class="syntax-highlight">';
-            slot += this.syntaxHighlight(data);
-            slot += "</pre>";
-            break;
-          }
-          case "image": {
-            data = await response.blob();
-            slot = `<img src="${URL.createObjectURL(data)}">`;
-            if (this.window["DOMPurify"]) {
-              txtReturn = "Include successful. BUT DOMPurify loaded which may block its use.";
-              _a2.log("warn", "Ui:include:image", txtReturn)();
-            }
-            break;
-          }
-          case "video": {
-            data = await response.blob();
-            slot = `<video controls autoplay><source src="${URL.createObjectURL(data)}"></video>`;
-            if (this.window["DOMPurify"]) {
-              txtReturn = "Include successful. BUT DOMPurify loaded which may block its use.";
-              _a2.log("warn", "Ui:include:video", txtReturn)();
-            }
-            break;
-          }
-          case "pdf":
-          case "text":
-          default: {
-            data = await response.blob();
-            slot = `<iframe style="resize:both;width:inherit;height:inherit;" src="${URL.createObjectURL(data)}">`;
-            if (this.window["DOMPurify"]) {
-              txtReturn = "Include successful. BUT DOMPurify loaded which may block its use.";
-              _a2.log("warn", `Ui:include:${type}`, txtReturn)();
-            }
-            break;
-          }
-        }
-        uiOptions.type = "div";
-        uiOptions.slot = slot;
-        if (!uiOptions.parent)
-          uiOptions.parent = "body";
-        if (!uiOptions.attributes)
-          uiOptions.attributes = { class: "included" };
-        this._uiReplace({
-          components: [
-            uiOptions
-          ]
-        });
-        _a2.log("trace", `Ui:include:${type}`, txtReturn)();
-        return txtReturn;
-      }
-      // ---- End of include() ---- //
+      //#endregion ---- -------- ----
     }, /** Log function - passed in constructor or will be a dummy function
      * @type {function}
      */
diff --git a/front-end/uibuilder.esm.min.js b/front-end/uibuilder.esm.min.js
index b9930eed..e89c0ca8 100644
--- a/front-end/uibuilder.esm.min.js
+++ b/front-end/uibuilder.esm.min.js
@@ -1,2 +1,2 @@
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Not shown.")();return}!t.title&&i.topic&&(t.title=i.topic),t.title&&(r='<p class="toast-head">'.concat(t.title,"</p><p>").concat(r,"</p>")),t.noAutohide&&(t.noAutoHide=t.noAutohide),t.noAutoHide&&(t.autohide=!t.noAutoHide),t.autoHideDelay?(t.autohide||(t.autohide=!0),t.delay=t.autoHideDelay):t.autoHideDelay=1e4,Object.prototype.hasOwnProperty.call(t,"autohide")||(t.autohide=!0),e==="alert"&&(t.modal=!0,t.autohide=!1,r='<svg viewBox="0 0 192.146 192.146" style="width:30;background-color:transparent;"><path d="M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z" /></svg> '.concat(r));let n=this.document.getElementById("toaster");n===null&&(n=this.document.createElement("div"),n.id="toaster",n.title="Click to clear all notifcations",n.setAttribute("class","toaster"),n.setAttribute("role","dialog"),n.setAttribute("arial-label","Toast message"),n.onclick=function(){n.remove()},this.document.body.insertAdjacentElement("afterbegin",n));let o=this.document.createElement("div");o.title="Click to clear this notifcation",o.setAttribute("class","toast ".concat(t.variant?t.variant:""," ").concat(e)),o.innerHTML=r,o.setAttribute("role","alertdialog"),t.modal&&o.setAttribute("aria-modal",t.modal),o.onclick=function(c){c.stopPropagation(),o.remove(),n.childElementCount<1&&n.remove()},n.insertAdjacentElement(t.appendToast===!0?"beforeend":"afterbegin",o),t.autohide===!0&&setInterval(()=>{o.remove(),n.childElementCount<1&&n.remove()},t.autoHideDelay)}_showNotification(e){e.topic&&!e.title&&(e.title=e.topic),e.title||(e.title="uibuilder notification"),e.payload&&!e.body&&(e.body=e.payload),e.body||(e.body=" No message given.");try{let t=new Notification(e.title,e);return new Promise((i,r)=>{t.addEventListener("close",n=>{n.currentTarget.userAction="close",i(n)}),t.addEventListener("click",n=>{n.currentTarget.userAction="click",i(n)}),t.addEventListener("error",n=>{n.currentTarget.userAction="error",r(n)})})}catch{return Promise.reject(new Error("Browser refused to create a Notification"))}}async notification(e){if(typeof e=="string"&&(e={body:e}),typeof Notification>"u")return Promise.reject(new Error("Notifications not available in this browser"));let t=Notification.permission;return t==="denied"?Promise.reject(new Error("Notifications not permitted by user")):t==="granted"?this._showNotification(e):(t=await Notification.requestPermission(),t==="granted"?this._showNotification(e):Promise.reject(new Error("Notifications not permitted by user")))}loadui(e){if(!fetch){d.log(0,"Ui:loadui","Current environment does not include `fetch`, skipping.")();return}if(!e){d.log(0,"Ui:loadui","url parameter must be provided, skipping.")();return}fetch(e).then(t=>{if(t.ok===!1)throw new Error("Could not load '".concat(e,"'. 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",t)()})}_uiComposeComponent(e,t){t.attributes&&Object.keys(t.attributes).forEach(i=>{i==="value"&&(e.value=t.attributes[i]),i.startsWith("xlink:")?e.setAttributeNS("http://www.w3.org/1999/xlink",i,t.attributes[i]):e.setAttribute(i,t.attributes[i])}),t.id&&e.setAttribute("id",t.id),t.type==="svg"&&(e.setAttributeNS("http://www.w3.org/2000/xmlns/","xmlns","http://www.w3.org/2000/svg"),e.setAttributeNS("http://www.w3.org/2000/xmlns/","xmlns:xlink","http://www.w3.org/1999/xlink")),t.events&&Object.keys(t.events).forEach(i=>{i.toLowerCase==="onclick"&&(i="click");try{e.addEventListener(i,r=>{new Function("evt","".concat(t.events[i],"(evt)"))(r)})}catch(r){d.log("error","Ui:_uiComposeComponent","Add event '".concat(i,"' for element '").concat(t.type,"': Cannot add event handler. ").concat(r.message))()}}),t.properties&&Object.keys(t.properties).forEach(i=>{e[i]=t.properties[i]}),t.slot&&this.replaceSlot(e,t),t.slotMarkdown&&this.replaceSlotMarkdown(e,t)}uiEnhanceElement(e,t){this._uiComposeComponent(e,t)}_uiExtendEl(e,t,i=""){t.forEach((r,n)=>{d.log("trace","Ui:_uiExtendEl:components-forEach:".concat(n),r)();let o;r.ns=i,r.ns==="html"?(o=e,e.innerHTML=r.slot):r.ns==="svg"?(o=this.document.createElementNS("http://www.w3.org/2000/svg",r.type),this._uiComposeComponent(o,r),e.appendChild(o)):(o=this.document.createElement(r.type==="html"?"div":r.type),this._uiComposeComponent(o,r),e.appendChild(o)),r.components&&this._uiExtendEl(o,r.components,r.ns)})}_uiAdd(e,t){d.log("trace","Ui:_uiManager:add","Starting _uiAdd")(),e.components.forEach((i,r)=>{d.log("trace","Ui:_uiAdd:components-forEach:".concat(r),"Component to add: ",i)();let n;switch(i.type){case"html":{i.ns="html",n=this.document.createElement("div");break}case"svg":{i.ns="svg",n=this.document.createElementNS("http://www.w3.org/2000/svg","svg");break}default:{i.ns="dom",n=this.document.createElement(i.type);break}}!i.slot&&e.payload&&(i.slot=e.payload),this._uiComposeComponent(n,i);let o;i.parentEl?o=i.parentEl:e.parentEl?o=e.parentEl:i.parent?o=this.document.querySelector(i.parent):e.parent&&(o=this.document.querySelector(e.parent)),o||(d.log("info","Ui:_uiAdd","No parent found, adding to body")(),o=this.document.querySelector("body")),i.position&&i.position==="first"?o.insertBefore(n,o.firstChild):i.position&&Number.isInteger(Number(i.position))?o.insertBefore(n,o.children[i.position]):o.appendChild(n),i.components&&this._uiExtendEl(n,i.components,i.ns)})}_uiRemove(e,t=!1){e.components.forEach(i=>{let r;t!==!0?r=[this.document.querySelector(i)]:r=this.document.querySelectorAll(i),r.forEach(n=>{try{n.remove()}catch(o){d.log("trace","Ui:_uiRemove","Could not remove. ".concat(o.message))()}})})}_uiReplace(e){d.log("trace","Ui:_uiReplace","Starting")(),e.components.forEach((t,i)=>{d.log("trace","Ui:_uiReplace:components-forEach:".concat(i),"Component to replace: ",t)();let r;if(t.id?r=this.document.getElementById(t.id):t.selector||t.select?r=this.document.querySelector(t.selector):t.name?r=this.document.querySelector('[name="'.concat(t.name,'"]')):t.type&&(r=this.document.querySelector(t.type)),d.log("trace","Ui:_uiReplace:components-forEach:".concat(i),"Element to replace: ",r)(),r==null){d.log("trace","Ui:_uiReplace:components-forEach:".concat(i,":noReplace"),"Cannot find the DOM element. Adding instead.",t)(),this._uiAdd({components:[t]},!1);return}let n;switch(t.type){case"html":{t.ns="html",n=this.document.createElement("div");break}case"svg":{t.ns="svg",n=this.document.createElementNS("http://www.w3.org/2000/svg","svg");break}default:{t.ns="dom",n=this.document.createElement(t.type);break}}this._uiComposeComponent(n,t),r.replaceWith(n),t.components&&this._uiExtendEl(n,t.components,t.ns)})}_uiUpdate(e){d.log("trace","Ui:_uiManager:update","Starting _uiUpdate")(),e.components||(e.components=[Object.assign({},e)]),e.components.forEach((t,i)=>{d.log("trace","_uiUpdate:components-forEach","Component #".concat(i),t)();let r;if(t.id?r=this.document.querySelectorAll("#".concat(t.id)):t.selector||t.select?r=this.document.querySelectorAll(t.selector):t.name?r=this.document.querySelectorAll('[name="'.concat(t.name,'"]')):t.type&&(r=this.document.querySelectorAll(t.type)),r===void 0||r.length<1){d.log("warn","Ui:_uiManager:update","Cannot find the DOM element. Ignoring.",t)();return}d.log("trace","_uiUpdate:components-forEach","Element(s) to update. Count: ".concat(r.length),r)(),!t.slot&&t.payload&&(t.slot=t.payload),r.forEach(n=>{this._uiComposeComponent(n,t)}),t.components&&r.forEach(n=>{d.log("trace","_uiUpdate:components","el",n)(),this._uiUpdate({method:e.method,parentEl:n,components:t.components})})})}_uiLoad(e){e.components&&(Array.isArray(e.components)||(e.components=[e.components]),e.components.forEach(async t=>{await Promise.resolve().then(()=>Ee(De(t)))})),e.srcScripts&&(Array.isArray(e.srcScripts)||(e.srcScripts=[e.srcScripts]),e.srcScripts.forEach(t=>{this.loadScriptSrc(t)})),e.txtScripts&&(Array.isArray(e.txtScripts)||(e.txtScripts=[e.txtScripts]),this.loadScriptTxt(e.txtScripts.join("\n"))),e.srcStyles&&(Array.isArray(e.srcStyles)||(e.srcStyles=[e.srcStyles]),e.srcStyles.forEach(t=>{this.loadStyleSrc(t)})),e.txtStyles&&(Array.isArray(e.txtStyles)||(e.txtStyles=[e.txtStyles]),this.loadStyleTxt(e.txtStyles.join("\n")))}_uiReload(){d.log("trace","Ui:uiManager:reload","reloading")(),location.reload()}_uiManager(e){e._ui&&(Array.isArray(e._ui)||(e._ui=[e._ui]),e._ui.forEach((t,i)=>{if(!t.method){d.log("error","Ui:_uiManager","No method defined for msg._ui[".concat(i,"]. 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Ignoring"))();break}}}))}nodeGet(e,t){let i={id:e.id===""?void 0:e.id,name:e.name,children:e.childNodes.length,type:e.nodeName,attributes:void 0,isUserInput:!!e.validity,userInput:e.validity?{value:e.value,validity:void 0,willValidate:e.willValidate,valueAsDate:e.valueAsDate,valueAsNumber:e.valueAsNumber,type:e.type}:void 0};if(["UL","OL"].includes(e.nodeName)){let r=this.document.querySelectorAll("".concat(t," li"));r&&(i.list={entries:r.length})}if(e.nodeName==="DL"){let r=this.document.querySelectorAll("".concat(t," dt"));r&&(i.list={entries:r.length})}if(e.nodeName==="TABLE"){let r=this.document.querySelectorAll("".concat(t," > tbody > tr")),n=this.document.querySelectorAll("".concat(t," > thead > tr")),o=this.document.querySelectorAll("".concat(t," > tbody > tr:last-child > *"));(r||n||o)&&(i.table={headRows:n?n.length:0,bodyRows:r?r.length:0,columns:o?o.length:0})}if(e.nodeName!=="#text"&&e.attributes&&e.attributes.length>0){i.attributes={};for(let r of e.attributes)r.name!=="id"&&(i.attributes[r.name]=e.attributes[r.name].value)}e.nodeName==="#text"&&(i.text=e.textContent),e.validity&&(i.userInput.validity={});for(let r in e.validity)i.userInput.validity[r]=e.validity[r];return i}uiGet(e,t=null){let i=this.document.querySelectorAll(e),r=[];return i.forEach(n=>{if(t!==null&&t!==""){let o=n.getAttribute(t);if(o==null)try{o=n[t]}catch{}if(o==null)t.toLowerCase()==="value"?r.push(n.innerText):r.push("Property '".concat(t,"' not found"));else if(o.constructor.name==="NamedNodeMap"){let c={};for(let l of o)c[l.name]=o[l.name].value;r.push(c)}else if(!o.constructor.name.toLowerCase().includes("map"))r.push({[t]:o});else{let c={};for(let l in o)c[l]=o[l];r.push(c)}}else r.push(this.nodeGet(n,e))}),r}async include(e,t){if(!fetch)return d.log(0,"Ui:include","Current environment does not include `fetch`, skipping.")(),"Current environment does not include `fetch`, skipping.";if(!e)return d.log(0,"Ui:include","url parameter must be provided, skipping.")(),"url parameter must be provided, skipping.";if(!t||!t.id)return d.log(0,"Ui:include","uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.")(),"uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.";let i;try{i=await fetch(e)}catch(f){return d.log(0,"Ui:include","Fetch of file '".concat(e,"' failed. 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t!=-1&&i!=-1&&(n.source=e,n.host=n.host.substring(1,n.host.length-1).replace(/;/g,":"),n.authority=n.authority.replace("[","").replace("]","").replace(/;/g,":"),n.ipv6uri=!0),n.pathNames=jt(n,n.path),n.queryKey=Wt(n,n.query),n}function jt(s,e){let t=/\/{2,9}/g,i=e.replace(t,"/").split("/");return(e.slice(0,1)=="/"||e.length===0)&&i.splice(0,1),e.slice(-1)=="/"&&i.splice(i.length-1,1),i}function Wt(s,e){let t={};return e.replace(/(?:^|&)([^&=]*)=?([^&]*)/g,function(i,r,n){r&&(t[r]=n)}),t}var B=class s extends y{constructor(e,t={}){super(),this.binaryType=ut,this.writeBuffer=[],e&&typeof e=="object"&&(t=e,e=null),e?(e=j(e),t.hostname=e.host,t.secure=e.protocol==="https"||e.protocol==="wss",t.port=e.port,e.query&&(t.query=e.query)):t.host&&(t.hostname=j(t.host).host),$(this,t),this.secure=t.secure!=null?t.secure:typeof location<"u"&&location.protocol==="https:",t.hostname&&!t.port&&(t.port=this.secure?"443":"80"),this.hostname=t.hostname||(typeof location<"u"?location.hostname:"localhost"),this.port=t.port||(typeof location<"u"&&location.port?location.port:this.secure?"443":"80"),this.transports=t.transports||["polling","websocket","webtransport"],this.writeBuffer=[],this.prevBufferLen=0,this.opts=Object.assign({path:"/engine.io",agent:!1,withCredentials:!1,upgrade:!0,timestampParam:"t",rememberUpgrade:!1,addTrailingSlash:!0,rejectUnauthorized:!0,perMessageDeflate:{threshold:1024},transportOptions:{},closeOnBeforeunload:!1},t),this.opts.path=this.opts.path.replace(/\/$/,"")+(this.opts.addTrailingSlash?"/":""),typeof this.opts.query=="string"&&(this.opts.query=st(this.opts.query)),this.id=null,this.upgrades=null,this.pingInterval=null,this.pingTimeout=null,this.pingTimeoutTimer=null,typeof addEventListener=="function"&&(this.opts.closeOnBeforeunload&&(this.beforeunloadEventListener=()=>{this.transport&&(this.transport.removeAllListeners(),this.transport.close())},addEventListener("beforeunload",this.beforeunloadEventListener,!1)),this.hostname!=="localhost"&&(this.offlineEventListener=()=>{this.onClose("transport close",{description:"network connection lost"})},addEventListener("offline",this.offlineEventListener,!1))),this.open()}createTransport(e){let t=Object.assign({},this.opts.query);t.EIO=xe,t.transport=e,this.id&&(t.sid=this.id);let i=Object.assign({},this.opts,{query:t,socket:this,hostname:this.hostname,secure:this.secure,port:this.port},this.opts.transportOptions[e]);return new Re[e](i)}open(){let e;if(this.opts.rememberUpgrade&&s.priorWebsocketSuccess&&this.transports.indexOf("websocket")!==-1)e="websocket";else if(this.transports.length===0){this.setTimeoutFn(()=>{this.emitReserved("error","No transports available")},0);return}else e=this.transports[0];this.readyState="opening";try{e=this.createTransport(e)}catch{this.transports.shift(),this.open();return}e.open(),this.setTransport(e)}setTransport(e){this.transport&&this.transport.removeAllListeners(),this.transport=e,e.on("drain",this.onDrain.bind(this)).on("packet",this.onPacket.bind(this)).on("error",this.onError.bind(this)).on("close",t=>this.onClose("transport close",t))}probe(e){let t=this.createTransport(e),i=!1;s.priorWebsocketSuccess=!1;let r=()=>{i||(t.send([{type:"ping",data:"probe"}]),t.once("packet",x=>{if(!i)if(x.type==="pong"&&x.data==="probe"){if(this.upgrading=!0,this.emitReserved("upgrading",t),!t)return;s.priorWebsocketSuccess=t.name==="websocket",this.transport.pause(()=>{i||this.readyState!=="closed"&&(b(),this.setTransport(t),t.send([{type:"upgrade"}]),this.emitReserved("upgrade",t),t=null,this.upgrading=!1,this.flush())})}else{let k=new Error("probe error");k.transport=t.name,this.emitReserved("upgradeError",k)}}))};function n(){i||(i=!0,b(),t.close(),t=null)}let o=x=>{let k=new Error("probe error: "+x);k.transport=t.name,n(),this.emitReserved("upgradeError",k)};function c(){o("transport closed")}function l(){o("socket closed")}function f(x){t&&x.name!==t.name&&n()}let b=()=>{t.removeListener("open",r),t.removeListener("error",o),t.removeListener("close",c),this.off("close",l),this.off("upgrading",f)};t.once("open",r),t.once("error",o),t.once("close",c),this.once("close",l),this.once("upgrading",f),this.upgrades.indexOf("webtransport")!==-1&&e!=="webtransport"?this.setTimeoutFn(()=>{i||t.open()},200):t.open()}onOpen(){if(this.readyState="open",s.priorWebsocketSuccess=this.transport.name==="websocket",this.emitReserved("open"),this.flush(),this.readyState==="open"&&this.opts.upgrade){let e=0,t=this.upgrades.length;for(;e<t;e++)this.probe(this.upgrades[e])}}onPacket(e){if(this.readyState==="opening"||this.readyState==="open"||this.readyState==="closing")switch(this.emitReserved("packet",e),this.emitReserved("heartbeat"),this.resetPingTimeout(),e.type){case"open":this.onHandshake(JSON.parse(e.data));break;case"ping":this.sendPacket("pong"),this.emitReserved("ping"),this.emitReserved("pong");break;case"error":let t=new Error("server error");t.code=e.data,this.onError(t);break;case"message":this.emitReserved("data",e.data),this.emitReserved("message",e.data);break}}onHandshake(e){this.emitReserved("handshake",e),this.id=e.sid,this.transport.query.sid=e.sid,this.upgrades=this.filterUpgrades(e.upgrades),this.pingInterval=e.pingInterval,this.pingTimeout=e.pingTimeout,this.maxPayload=e.maxPayload,this.onOpen(),this.readyState!=="closed"&&this.resetPingTimeout()}resetPingTimeout(){this.clearTimeoutFn(this.pingTimeoutTimer),this.pingTimeoutTimer=this.setTimeoutFn(()=>{this.onClose("ping timeout")},this.pingInterval+this.pingTimeout),this.opts.autoUnref&&this.pingTimeoutTimer.unref()}onDrain(){this.writeBuffer.splice(0,this.prevBufferLen),this.prevBufferLen=0,this.writeBuffer.length===0?this.emitReserved("drain"):this.flush()}flush(){if(this.readyState!=="closed"&&this.transport.writable&&!this.upgrading&&this.writeBuffer.length){let e=this.getWritablePackets();this.transport.send(e),this.prevBufferLen=e.length,this.emitReserved("flush")}}getWritablePackets(){if(!(this.maxPayload&&this.transport.name==="polling"&&this.writeBuffer.length>1))return this.writeBuffer;let t=1;for(let i=0;i<this.writeBuffer.length;i++){let r=this.writeBuffer[i].data;if(r&&(t+=tt(r)),i>0&&t>this.maxPayload)return this.writeBuffer.slice(0,i);t+=2}return this.writeBuffer}write(e,t,i){return this.sendPacket("message",e,t,i),this}send(e,t,i){return this.sendPacket("message",e,t,i),this}sendPacket(e,t,i,r){if(typeof t=="function"&&(r=t,t=void 0),typeof i=="function"&&(r=i,i=null),this.readyState==="closing"||this.readyState==="closed")return;i=i||{},i.compress=i.compress!==!1;let n={type:e,data:t,options:i};this.emitReserved("packetCreate",n),this.writeBuffer.push(n),r&&this.once("flush",r),this.flush()}close(){let e=()=>{this.onClose("forced close"),this.transport.close()},t=()=>{this.off("upgrade",t),this.off("upgradeError",t),e()},i=()=>{this.once("upgrade",t),this.once("upgradeError",t)};return(this.readyState==="opening"||this.readyState==="open")&&(this.readyState="closing",this.writeBuffer.length?this.once("drain",()=>{this.upgrading?i():e()}):this.upgrading?i():e()),this}onError(e){s.priorWebsocketSuccess=!1,this.emitReserved("error",e),this.onClose("transport error",e)}onClose(e,t){(this.readyState==="opening"||this.readyState==="open"||this.readyState==="closing")&&(this.clearTimeoutFn(this.pingTimeoutTimer),this.transport.removeAllListeners("close"),this.transport.close(),this.transport.removeAllListeners(),typeof removeEventListener=="function"&&(removeEventListener("beforeunload",this.beforeunloadEventListener,!1),removeEventListener("offline",this.offlineEventListener,!1)),this.readyState="closed",this.id=null,this.emitReserved("close",e,t),this.writeBuffer=[],this.prevBufferLen=0)}filterUpgrades(e){let t=[],i=0,r=e.length;for(;i<r;i++)~this.transports.indexOf(e[i])&&t.push(e[i]);return t}};B.protocol=xe;var fs=B.protocol;function ft(s,e="",t){let i=s;t=t||typeof location<"u"&&location,s==null&&(s=t.protocol+"//"+t.host),typeof s=="string"&&(s.charAt(0)==="/"&&(s.charAt(1)==="/"?s=t.protocol+s:s=t.host+s),/^(https?|wss?):\/\//.test(s)||(typeof t<"u"?s=t.protocol+"//"+s:s="https://"+s),i=j(s)),i.port||(/^(http|ws)$/.test(i.protocol)?i.port="80":/^(http|ws)s$/.test(i.protocol)&&(i.port="443")),i.path=i.path||"/";let n=i.host.indexOf(":")!==-1?"["+i.host+"]":i.host;return i.id=i.protocol+"://"+n+":"+i.port+e,i.href=i.protocol+"://"+n+(t&&t.port===i.port?"":":"+i.port),i}var Ie={};Rt(Ie,{Decoder:()=>Le,Encoder:()=>$e,PacketType:()=>p,protocol:()=>bt});var Kt=typeof ArrayBuffer=="function",Jt=s=>typeof ArrayBuffer.isView=="function"?ArrayBuffer.isView(s):s.buffer instanceof ArrayBuffer,pt=Object.prototype.toString,zt=typeof Blob=="function"||typeof Blob<"u"&&pt.call(Blob)==="[object BlobConstructor]",Yt=typeof File=="function"||typeof File<"u"&&pt.call(File)==="[object FileConstructor]";function re(s){return Kt&&(s instanceof ArrayBuffer||Jt(s))||zt&&s instanceof Blob||Yt&&s instanceof File}function se(s,e){if(!s||typeof s!="object")return!1;if(Array.isArray(s)){for(let t=0,i=s.length;t<i;t++)if(se(s[t]))return!0;return!1}if(re(s))return!0;if(s.toJSON&&typeof s.toJSON=="function"&&arguments.length===1)return se(s.toJSON(),!0);for(let t in s)if(Object.prototype.hasOwnProperty.call(s,t)&&se(s[t]))return!0;return!1}function mt(s){let e=[],t=s.data,i=s;return i.data=Ae(t,e),i.attachments=e.length,{packet:i,buffers:e}}function Ae(s,e){if(!s)return s;if(re(s)){let t={_placeholder:!0,num:e.length};return e.push(s),t}else if(Array.isArray(s)){let t=new Array(s.length);for(let i=0;i<s.length;i++)t[i]=Ae(s[i],e);return t}else if(typeof s=="object"&&!(s instanceof Date)){let t={};for(let i in s)Object.prototype.hasOwnProperty.call(s,i)&&(t[i]=Ae(s[i],e));return t}return s}function gt(s,e){return s.data=Te(s.data,e),delete s.attachments,s}function Te(s,e){if(!s)return s;if(s&&s._placeholder===!0){if(typeof s.num=="number"&&s.num>=0&&s.num<e.length)return e[s.num];throw new Error("illegal attachments")}else if(Array.isArray(s))for(let t=0;t<s.length;t++)s[t]=Te(s[t],e);else if(typeof s=="object")for(let t in s)Object.prototype.hasOwnProperty.call(s,t)&&(s[t]=Te(s[t],e));return s}var Gt=["connect","connect_error","disconnect","disconnecting","newListener","removeListener"],bt=5,p;(function(s){s[s.CONNECT=0]="CONNECT",s[s.DISCONNECT=1]="DISCONNECT",s[s.EVENT=2]="EVENT",s[s.ACK=3]="ACK",s[s.CONNECT_ERROR=4]="CONNECT_ERROR",s[s.BINARY_EVENT=5]="BINARY_EVENT",s[s.BINARY_ACK=6]="BINARY_ACK"})(p||(p={}));var $e=class{constructor(e){this.replacer=e}encode(e){return(e.type===p.EVENT||e.type===p.ACK)&&se(e)?this.encodeAsBinary({type:e.type===p.EVENT?p.BINARY_EVENT:p.BINARY_ACK,nsp:e.nsp,data:e.data,id:e.id}):[this.encodeAsString(e)]}encodeAsString(e){let t=""+e.type;return(e.type===p.BINARY_EVENT||e.type===p.BINARY_ACK)&&(t+=e.attachments+"-"),e.nsp&&e.nsp!=="/"&&(t+=e.nsp+","),e.id!=null&&(t+=e.id),e.data!=null&&(t+=JSON.stringify(e.data,this.replacer)),t}encodeAsBinary(e){let t=mt(e),i=this.encodeAsString(t.packet),r=t.buffers;return r.unshift(i),r}};function yt(s){return Object.prototype.toString.call(s)==="[object Object]"}var Le=class s extends y{constructor(e){super(),this.reviver=e}add(e){let t;if(typeof e=="string"){if(this.reconstructor)throw new Error("got plaintext data when reconstructing a packet");t=this.decodeString(e);let i=t.type===p.BINARY_EVENT;i||t.type===p.BINARY_ACK?(t.type=i?p.EVENT:p.ACK,this.reconstructor=new Ue(t),t.attachments===0&&super.emitReserved("decoded",t)):super.emitReserved("decoded",t)}else if(re(e)||e.base64)if(this.reconstructor)t=this.reconstructor.takeBinaryData(e),t&&(this.reconstructor=null,super.emitReserved("decoded",t));else throw new Error("got binary data when not reconstructing a packet");else throw new Error("Unknown type: "+e)}decodeString(e){let t=0,i={type:Number(e.charAt(0))};if(p[i.type]===void 0)throw new Error("unknown packet type "+i.type);if(i.type===p.BINARY_EVENT||i.type===p.BINARY_ACK){let n=t+1;for(;e.charAt(++t)!=="-"&&t!=e.length;);let o=e.substring(n,t);if(o!=Number(o)||e.charAt(t)!=="-")throw new Error("Illegal attachments");i.attachments=Number(o)}if(e.charAt(t+1)==="/"){let n=t+1;for(;++t&&!(e.charAt(t)===","||t===e.length););i.nsp=e.substring(n,t)}else i.nsp="/";let r=e.charAt(t+1);if(r!==""&&Number(r)==r){let n=t+1;for(;++t;){let o=e.charAt(t);if(o==null||Number(o)!=o){--t;break}if(t===e.length)break}i.id=Number(e.substring(n,t+1))}if(e.charAt(++t)){let n=this.tryParse(e.substr(t));if(s.isPayloadValid(i.type,n))i.data=n;else throw new Error("invalid payload")}return i}tryParse(e){try{return JSON.parse(e,this.reviver)}catch{return!1}}static isPayloadValid(e,t){switch(e){case p.CONNECT:return yt(t);case p.DISCONNECT:return t===void 0;case p.CONNECT_ERROR:return typeof t=="string"||yt(t);case p.EVENT:case p.BINARY_EVENT:return Array.isArray(t)&&(typeof t[0]=="number"||typeof t[0]=="string"&&Gt.indexOf(t[0])===-1);case p.ACK:case p.BINARY_ACK:return Array.isArray(t)}}destroy(){this.reconstructor&&(this.reconstructor.finishedReconstruction(),this.reconstructor=null)}},Ue=class{constructor(e){this.packet=e,this.buffers=[],this.reconPack=e}takeBinaryData(e){if(this.buffers.push(e),this.buffers.length===this.reconPack.attachments){let t=gt(this.reconPack,this.buffers);return this.finishedReconstruction(),t}return null}finishedReconstruction(){this.reconPack=null,this.buffers=[]}};function S(s,e,t){return s.on(e,t),function(){s.off(e,t)}}var Xt=Object.freeze({connect:1,connect_error:1,disconnect:1,disconnecting:1,newListener:1,removeListener:1}),W=class extends y{constructor(e,t,i){super(),this.connected=!1,this.recovered=!1,this.receiveBuffer=[],this.sendBuffer=[],this._queue=[],this._queueSeq=0,this.ids=0,this.acks={},this.flags={},this.io=e,this.nsp=t,i&&i.auth&&(this.auth=i.auth),this._opts=Object.assign({},i),this.io._autoConnect&&this.open()}get disconnected(){return!this.connected}subEvents(){if(this.subs)return;let e=this.io;this.subs=[S(e,"open",this.onopen.bind(this)),S(e,"packet",this.onpacket.bind(this)),S(e,"error",this.onerror.bind(this)),S(e,"close",this.onclose.bind(this))]}get active(){return!!this.subs}connect(){return this.connected?this:(this.subEvents(),this.io._reconnecting||this.io.open(),this.io._readyState==="open"&&this.onopen(),this)}open(){return this.connect()}send(...e){return e.unshift("message"),this.emit.apply(this,e),this}emit(e,...t){if(Xt.hasOwnProperty(e))throw new Error('"'+e.toString()+'" is a reserved event name');if(t.unshift(e),this._opts.retries&&!this.flags.fromQueue&&!this.flags.volatile)return this._addToQueue(t),this;let i={type:p.EVENT,data:t};if(i.options={},i.options.compress=this.flags.compress!==!1,typeof t[t.length-1]=="function"){let o=this.ids++,c=t.pop();this._registerAckCallback(o,c),i.id=o}let r=this.io.engine&&this.io.engine.transport&&this.io.engine.transport.writable;return this.flags.volatile&&(!r||!this.connected)||(this.connected?(this.notifyOutgoingListeners(i),this.packet(i)):this.sendBuffer.push(i)),this.flags={},this}_registerAckCallback(e,t){var i;let r=(i=this.flags.timeout)!==null&&i!==void 0?i:this._opts.ackTimeout;if(r===void 0){this.acks[e]=t;return}let n=this.io.setTimeoutFn(()=>{delete this.acks[e];for(let o=0;o<this.sendBuffer.length;o++)this.sendBuffer[o].id===e&&this.sendBuffer.splice(o,1);t.call(this,new Error("operation has timed out"))},r);this.acks[e]=(...o)=>{this.io.clearTimeoutFn(n),t.apply(this,[null,...o])}}emitWithAck(e,...t){let i=this.flags.timeout!==void 0||this._opts.ackTimeout!==void 0;return new Promise((r,n)=>{t.push((o,c)=>i?o?n(o):r(c):r(o)),this.emit(e,...t)})}_addToQueue(e){let t;typeof e[e.length-1]=="function"&&(t=e.pop());let i={id:this._queueSeq++,tryCount:0,pending:!1,args:e,flags:Object.assign({fromQueue:!0},this.flags)};e.push((r,...n)=>i!==this._queue[0]?void 0:(r!==null?i.tryCount>this._opts.retries&&(this._queue.shift(),t&&t(r)):(this._queue.shift(),t&&t(null,...n)),i.pending=!1,this._drainQueue())),this._queue.push(i),this._drainQueue()}_drainQueue(e=!1){if(!this.connected||this._queue.length===0)return;let t=this._queue[0];t.pending&&!e||(t.pending=!0,t.tryCount++,this.flags=t.flags,this.emit.apply(this,t.args))}packet(e){e.nsp=this.nsp,this.io._packet(e)}onopen(){typeof this.auth=="function"?this.auth(e=>{this._sendConnectPacket(e)}):this._sendConnectPacket(this.auth)}_sendConnectPacket(e){this.packet({type:p.CONNECT,data:this._pid?Object.assign({pid:this._pid,offset:this._lastOffset},e):e})}onerror(e){this.connected||this.emitReserved("connect_error",e)}onclose(e,t){this.connected=!1,delete this.id,this.emitReserved("disconnect",e,t)}onpacket(e){if(e.nsp===this.nsp)switch(e.type){case p.CONNECT:e.data&&e.data.sid?this.onconnect(e.data.sid,e.data.pid):this.emitReserved("connect_error",new Error("It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)"));break;case p.EVENT:case p.BINARY_EVENT:this.onevent(e);break;case p.ACK:case p.BINARY_ACK:this.onack(e);break;case p.DISCONNECT:this.ondisconnect();break;case p.CONNECT_ERROR:this.destroy();let i=new 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Arg Type: ".concat(e.constructor.name),e)();return}e.preventDefault();let i=e.currentTarget,r={};Object.keys(i).forEach(m=>{m.startsWith("_")||(r[m]=i[m])});let n=["class","id","name"],o;try{o=Object.assign({},...Array.from(i.attributes,({name:m,value:_e})=>{if(!n.includes(m))return{[m]:_e}}))}catch{}let c,l=[];i.form&&(c={},c.valid=i.form.checkValidity(),Object.values(i.form).forEach((m,_e)=>{let V=m.id!==""?m.id:m.name!==""?m.name:"".concat(_e,"-").concat(m.type);if(V!==""&&m.type){if("checked"in m&&m.value==="on"&&(m.value=m.checked.toString()),l.push({key:V,val:m.value}),c[V]={id:m.id,name:m.name,value:m.value,valid:m.checkValidity(),type:m.type},c[V].valid===!1){let w=m.validity;c[V].validity={badInput:w.badInput===!0?w.badInput:void 0,customError:w.customError===!0?w.customError:void 0,patternMismatch:w.patternMismatch===!0?w.patternMismatch:void 0,rangeOverflow:w.rangeOverflow===!0?w.rangeOverflow:void 0,rangeUnderflow:w.rangeUnderflow===!0?w.rangeUnderflow:void 0,stepMismatch:w.stepMismatch===!0?w.stepMismatch:void 0,tooLong:w.tooLong===!0?w.tooLong:void 0,tooShort:w.tooShort===!0?w.tooShort:void 0,typeMismatch:w.typeMismatch===!0?w.typeMismatch:void 0,valueMissing:w.valueMissing===!0?w.valueMissing:void 0}}m.dataset&&(c[V].data=m.dataset)}}));let f;try{f=Array.from(i.classList)}catch{}let b={...i.dataset},x;Object.prototype.toString.call(i)==="[object Notification]"&&(b="notification-".concat(i.userAction),x={actions:i.actions,badge:i.badge,body:i.body,data:i.data,dir:i.dir,icon:i.icon,image:i.image,lang:i.lang,renotify:i.renotify,requireInteraction:i.requireInteraction,silent:i.silent,tag:i.tag,timestamp:i.timestamp,title:i.title,vibrate:i.vibrate});let k={payload:b,_ui:{type:"eventSend",id:i.id!==""?i.id:void 0,name:i.name!==""?i.name:void 0,slotText:i.textContent?i.textContent.substring(0,255):void 0,form:c,props:r,attribs:o,classes:f,notification:x,event:e.type,altKey:e.altKey,ctrlKey:e.ctrlKey,shiftKey:e.shiftKey,metaKey:e.metaKey,pointerType:e.pointerType,nodeName:i.nodeName,clientId:this.clientId,pageName:this.pageName,tabId:this.tabId}};l.length>0&&l.forEach(m=>{k.payload[m.key]=m.val}),e.type==="change"&&(k._ui.newValue=k.payload.value="checked"in i?i.checked:e.target.value),a("trace","Uib:eventSend","Sending msg to Node-RED",k)(),i.dataset&&i.dataset.length===0&&a("warn","Uib:eventSend","No payload in msg. data-* attributes should be used.")(),this._send(k,this._ioChannels.client,t)}htmlSend(e="",t=!0){let i="<!doctype html>\n".concat(document.documentElement.outerHTML),r={payload:i,length:i.length,topic:this.topic};return a("trace","Uib:htmlSend","Sending full HTML to Node-RED",r)(),t===!0&&this._send(r,this._ioChannels.client,e),i}_uibCommand(e){var l;if(!e._uib||!e._uib.command){a("error","uibuilder:_uibCommand","Invalid command message 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f=!1,b=!1;e._uib.options&&e._uib.options.store&&(e._uib.options.store===!0&&(f=!0),e._uib.options.autoload===!0&&(b=!0)),o=this.set(i,r,f,b);break}case"showMsg":{o=this.showMsg(r,i);break}case"showStatus":{o=this.showStatus(r,i);break}case"uiGet":{o=g.uiGet(i,r);break}case"uiWatch":{o=this.uiWatch(i);break}case"watchUrlHash":{o=this.watchUrlHash(i);break}default:{a("warning","Uib:_uibCommand","Command '".concat(t,"' not yet implemented"))();break}}n!==!0&&(o===void 0&&(o="'".concat(i,"' is undefined")),Object(o).constructor===Promise?o.then(f=>(e.payload=e._uib.response=f,e.info=e._uib.info=c,e.topic||(e.topic=this.topic||"uib ".concat(t," for '").concat(i,"'")),this.send(e),!0)).catch(f=>{a(0,"Uib:_uibCommand","Error: ",f)()}):(e.payload=e._uib.response=o,e.info=e._uib.info=c,e.topic||(e.topic=this.topic||"uib ".concat(t," for '").concat(i,"'")),this.send(e)))}_forThis(e){let t=!0;return e.pageName&&e.pageName!==this.pageName&&(a("trace","Uib:_msgRcvdEvents:_uib","Not for this 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Version: ".concat(e.version,"\nServer time: ").concat(e.serverTimestamp,", Sever time offset: ").concat(this.serverTimeOffset," hours"))(),E._meta.version.startsWith(e.version.split("-")[0])||a("warn","Uib:ioSetup:".concat(this._ioChannels.control),"Server version (".concat(e.version,") not the same as the client version (").concat(E._meta.version,")"))(),this.autoSendReady===!0&&a("trace","Uib:ioSetup:".concat(this._ioChannels.control,"/client connect"),"Auto-sending ready-for-content/replay msg to server");break}default:a("trace","uibuilderfe:ioSetup:".concat(this._ioChannels.control),"Received ".concat(e.uibuilderCtrl," from server"))}}beaconLog(e,t){t||(t="debug"),navigator.sendBeacon("./_clientLog","".concat(t,"::").concat(e))}logToServer(){this.sendCtrl({uibuilderCtrl:"client log message",payload:arguments,_socketId:this._socket.id,clientId:this.clientId,tabId:this.tabId,pageName:this.pageName,connections:this.connectedNum,lastNavType:this.lastNavType})}_getIOnamespace(){let e;if(e=this.cookies["uibuilder-namespace"],e===void 0||e===""){let t=window.location.pathname.split("/").filter(function(i){return i.trim()!==""});t.length>0&&t[t.length-1].endsWith(".html")&&t.pop(),e=t.pop(),a("trace","uibuilder.module.js:getIOnamespace","Socket.IO namespace found via url path: ".concat(e))()}else a("trace","uibuilder.module.js:getIOnamespace","Socket.IO namespace found via cookie: ".concat(e))();return this.url=e,e="/"+e,a("trace","uibuilder.module.js:getIOnamespace","Final Socket.IO namespace: ".concat(e))(),e}_checkConnect(e,t,i=1){if(navigator.onLine!==!1)return e||(e=this.retryMs),t||(t=this.retryFactor),a("trace","Uib:checkConnect","Checking connection. Connected: ".concat(this._socket.connected,". Timer: ").concat(u(this,_),". Depth: ").concat(i,". Delay: ").concat(e,". Factor: ").concat(t),this._socket)(),this._socket.connected===!0?(u(this,_)&&(window.clearTimeout(u(this,_)),A(this,_,null)),this.set("ioConnected",!0),this.set("socketError",null),!0):(this.set("ioConnected",!1),u(this,_)&&window.clearTimeout(u(this,_)),A(this,_,window.setTimeout(()=>{a("warn","Uib:checkConnect:setTimeout","Socket.IO reconnection attempt. Current delay: ".concat(e,". Depth: ").concat(i))(),this._socket.close(),this._socket.connect(),A(this,_,null),this._checkConnect(e*t,t,i++)},e)),!1)}_onConnect(){a("info","Uib:ioSetup","\u2705 SOCKET CONNECTED. Connection count: ".concat(this.connectedNum,", Is a Recovery?: ").concat(this._socket.recovered,". \nNamespace: ").concat(this.ioNamespace))(),this._dispatchCustomEvent("uibuilder:socket:connected",{numConnections:this.connectedNum,isRecovery:this._socket.recovered}),this._checkConnect()}_onDisconnect(e){a("info","Uib:ioSetup:socket-disconnect","\u26D4 Socket Disconnected. Reason: ".concat(e))(),this._dispatchCustomEvent("uibuilder:socket:disconnected",e),this._checkConnect()}_ioSetup(){return J===void 0?(a("error","Uib:ioSetup","Socket.IO client not loaded, Node-RED comms will not work")(),!1):(this._socket&&(a("trace","Uib:ioSetup","Removing listeners in preparation for redoing Socket.IO connections")(),u(this,_)&&(window.clearTimeout(u(this,_)),A(this,_,null)),this._socket.close(),this._socket.offAny(),this._socket=void 0,this.set("ioConnected",!1)),this.socketOptions.path=this.ioPath,a("trace","Uib:ioSetup","About to create IO object. Transports: [".concat(this.socketOptions.transports.join(", "),"]"))(),this._socket=J(this.ioNamespace,this.socketOptions),this._socket.on("connect",this._onConnect.bind(this)),this._socket.on(this._ioChannels.server,this._stdMsgFromServer.bind(this)),this._socket.on(this._ioChannels.control,this._ctrlMsgFromServer.bind(this)),this._socket.on("disconnect",this._onDisconnect.bind(this)),this._socket.on("connect_error",e=>{navigator.onLine!==!1&&(a("error","Uib:ioSetup:connect_error","\u274C Socket.IO Connect Error. Reason: ".concat(e.message),e)(),this.set("ioConnected",!1),this.set("socketError",e),this._dispatchCustomEvent("uibuilder:socket:disconnected",e))}),this._socket.on("error",e=>{a("error","Uib:ioSetup:error","\u274C Socket.IO Error. 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e=this.transports[0];this.readyState="opening";try{e=this.createTransport(e)}catch{this.transports.shift(),this.open();return}e.open(),this.setTransport(e)}setTransport(e){this.transport&&this.transport.removeAllListeners(),this.transport=e,e.on("drain",this.onDrain.bind(this)).on("packet",this.onPacket.bind(this)).on("error",this.onError.bind(this)).on("close",t=>this.onClose("transport close",t))}probe(e){let t=this.createTransport(e),i=!1;s.priorWebsocketSuccess=!1;let r=()=>{i||(t.send([{type:"ping",data:"probe"}]),t.once("packet",x=>{if(!i)if(x.type==="pong"&&x.data==="probe"){if(this.upgrading=!0,this.emitReserved("upgrading",t),!t)return;s.priorWebsocketSuccess=t.name==="websocket",this.transport.pause(()=>{i||this.readyState!=="closed"&&(b(),this.setTransport(t),t.send([{type:"upgrade"}]),this.emitReserved("upgrade",t),t=null,this.upgrading=!1,this.flush())})}else{let k=new Error("probe error");k.transport=t.name,this.emitReserved("upgradeError",k)}}))};function n(){i||(i=!0,b(),t.close(),t=null)}let o=x=>{let k=new Error("probe error: "+x);k.transport=t.name,n(),this.emitReserved("upgradeError",k)};function c(){o("transport closed")}function l(){o("socket closed")}function f(x){t&&x.name!==t.name&&n()}let b=()=>{t.removeListener("open",r),t.removeListener("error",o),t.removeListener("close",c),this.off("close",l),this.off("upgrading",f)};t.once("open",r),t.once("error",o),t.once("close",c),this.once("close",l),this.once("upgrading",f),this.upgrades.indexOf("webtransport")!==-1&&e!=="webtransport"?this.setTimeoutFn(()=>{i||t.open()},200):t.open()}onOpen(){if(this.readyState="open",s.priorWebsocketSuccess=this.transport.name==="websocket",this.emitReserved("open"),this.flush(),this.readyState==="open"&&this.opts.upgrade){let e=0,t=this.upgrades.length;for(;e<t;e++)this.probe(this.upgrades[e])}}onPacket(e){if(this.readyState==="opening"||this.readyState==="open"||this.readyState==="closing")switch(this.emitReserved("packet",e),this.emitReserved("heartbeat"),this.resetPingTimeout(),e.type){case"open":this.onHandshake(JSON.parse(e.data));break;case"ping":this.sendPacket("pong"),this.emitReserved("ping"),this.emitReserved("pong");break;case"error":let t=new Error("server error");t.code=e.data,this.onError(t);break;case"message":this.emitReserved("data",e.data),this.emitReserved("message",e.data);break}}onHandshake(e){this.emitReserved("handshake",e),this.id=e.sid,this.transport.query.sid=e.sid,this.upgrades=this.filterUpgrades(e.upgrades),this.pingInterval=e.pingInterval,this.pingTimeout=e.pingTimeout,this.maxPayload=e.maxPayload,this.onOpen(),this.readyState!=="closed"&&this.resetPingTimeout()}resetPingTimeout(){this.clearTimeoutFn(this.pingTimeoutTimer),this.pingTimeoutTimer=this.setTimeoutFn(()=>{this.onClose("ping timeout")},this.pingInterval+this.pingTimeout),this.opts.autoUnref&&this.pingTimeoutTimer.unref()}onDrain(){this.writeBuffer.splice(0,this.prevBufferLen),this.prevBufferLen=0,this.writeBuffer.length===0?this.emitReserved("drain"):this.flush()}flush(){if(this.readyState!=="closed"&&this.transport.writable&&!this.upgrading&&this.writeBuffer.length){let e=this.getWritablePackets();this.transport.send(e),this.prevBufferLen=e.length,this.emitReserved("flush")}}getWritablePackets(){if(!(this.maxPayload&&this.transport.name==="polling"&&this.writeBuffer.length>1))return this.writeBuffer;let t=1;for(let i=0;i<this.writeBuffer.length;i++){let r=this.writeBuffer[i].data;if(r&&(t+=tt(r)),i>0&&t>this.maxPayload)return this.writeBuffer.slice(0,i);t+=2}return this.writeBuffer}write(e,t,i){return this.sendPacket("message",e,t,i),this}send(e,t,i){return this.sendPacket("message",e,t,i),this}sendPacket(e,t,i,r){if(typeof t=="function"&&(r=t,t=void 0),typeof i=="function"&&(r=i,i=null),this.readyState==="closing"||this.readyState==="closed")return;i=i||{},i.compress=i.compress!==!1;let n={type:e,data:t,options:i};this.emitReserved("packetCreate",n),this.writeBuffer.push(n),r&&this.once("flush",r),this.flush()}close(){let e=()=>{this.onClose("forced close"),this.transport.close()},t=()=>{this.off("upgrade",t),this.off("upgradeError",t),e()},i=()=>{this.once("upgrade",t),this.once("upgradeError",t)};return(this.readyState==="opening"||this.readyState==="open")&&(this.readyState="closing",this.writeBuffer.length?this.once("drain",()=>{this.upgrading?i():e()}):this.upgrading?i():e()),this}onError(e){s.priorWebsocketSuccess=!1,this.emitReserved("error",e),this.onClose("transport error",e)}onClose(e,t){(this.readyState==="opening"||this.readyState==="open"||this.readyState==="closing")&&(this.clearTimeoutFn(this.pingTimeoutTimer),this.transport.removeAllListeners("close"),this.transport.close(),this.transport.removeAllListeners(),typeof removeEventListener=="function"&&(removeEventListener("beforeunload",this.beforeunloadEventListener,!1),removeEventListener("offline",this.offlineEventListener,!1)),this.readyState="closed",this.id=null,this.emitReserved("close",e,t),this.writeBuffer=[],this.prevBufferLen=0)}filterUpgrades(e){let t=[],i=0,r=e.length;for(;i<r;i++)~this.transports.indexOf(e[i])&&t.push(e[i]);return t}};B.protocol=xe;var fs=B.protocol;function ft(s,e="",t){let i=s;t=t||typeof location<"u"&&location,s==null&&(s=t.protocol+"//"+t.host),typeof s=="string"&&(s.charAt(0)==="/"&&(s.charAt(1)==="/"?s=t.protocol+s:s=t.host+s),/^(https?|wss?):\/\//.test(s)||(typeof t<"u"?s=t.protocol+"//"+s:s="https://"+s),i=j(s)),i.port||(/^(http|ws)$/.test(i.protocol)?i.port="80":/^(http|ws)s$/.test(i.protocol)&&(i.port="443")),i.path=i.path||"/";let n=i.host.indexOf(":")!==-1?"["+i.host+"]":i.host;return i.id=i.protocol+"://"+n+":"+i.port+e,i.href=i.protocol+"://"+n+(t&&t.port===i.port?"":":"+i.port),i}var Ie={};Rt(Ie,{Decoder:()=>Le,Encoder:()=>$e,PacketType:()=>p,protocol:()=>bt});var Kt=typeof ArrayBuffer=="function",Jt=s=>typeof ArrayBuffer.isView=="function"?ArrayBuffer.isView(s):s.buffer instanceof ArrayBuffer,pt=Object.prototype.toString,zt=typeof Blob=="function"||typeof Blob<"u"&&pt.call(Blob)==="[object BlobConstructor]",Yt=typeof File=="function"||typeof File<"u"&&pt.call(File)==="[object FileConstructor]";function re(s){return Kt&&(s instanceof ArrayBuffer||Jt(s))||zt&&s instanceof Blob||Yt&&s instanceof File}function se(s,e){if(!s||typeof s!="object")return!1;if(Array.isArray(s)){for(let t=0,i=s.length;t<i;t++)if(se(s[t]))return!0;return!1}if(re(s))return!0;if(s.toJSON&&typeof s.toJSON=="function"&&arguments.length===1)return se(s.toJSON(),!0);for(let t in s)if(Object.prototype.hasOwnProperty.call(s,t)&&se(s[t]))return!0;return!1}function mt(s){let e=[],t=s.data,i=s;return i.data=Ae(t,e),i.attachments=e.length,{packet:i,buffers:e}}function Ae(s,e){if(!s)return s;if(re(s)){let t={_placeholder:!0,num:e.length};return e.push(s),t}else if(Array.isArray(s)){let t=new Array(s.length);for(let i=0;i<s.length;i++)t[i]=Ae(s[i],e);return t}else if(typeof s=="object"&&!(s instanceof Date)){let t={};for(let i in s)Object.prototype.hasOwnProperty.call(s,i)&&(t[i]=Ae(s[i],e));return t}return s}function gt(s,e){return s.data=Te(s.data,e),delete s.attachments,s}function Te(s,e){if(!s)return s;if(s&&s._placeholder===!0){if(typeof s.num=="number"&&s.num>=0&&s.num<e.length)return e[s.num];throw new Error("illegal attachments")}else if(Array.isArray(s))for(let t=0;t<s.length;t++)s[t]=Te(s[t],e);else if(typeof s=="object")for(let t in s)Object.prototype.hasOwnProperty.call(s,t)&&(s[t]=Te(s[t],e));return s}var Gt=["connect","connect_error","disconnect","disconnecting","newListener","removeListener"],bt=5,p;(function(s){s[s.CONNECT=0]="CONNECT",s[s.DISCONNECT=1]="DISCONNECT",s[s.EVENT=2]="EVENT",s[s.ACK=3]="ACK",s[s.CONNECT_ERROR=4]="CONNECT_ERROR",s[s.BINARY_EVENT=5]="BINARY_EVENT",s[s.BINARY_ACK=6]="BINARY_ACK"})(p||(p={}));var $e=class{constructor(e){this.replacer=e}encode(e){return(e.type===p.EVENT||e.type===p.ACK)&&se(e)?this.encodeAsBinary({type:e.type===p.EVENT?p.BINARY_EVENT:p.BINARY_ACK,nsp:e.nsp,data:e.data,id:e.id}):[this.encodeAsString(e)]}encodeAsString(e){let t=""+e.type;return(e.type===p.BINARY_EVENT||e.type===p.BINARY_ACK)&&(t+=e.attachments+"-"),e.nsp&&e.nsp!=="/"&&(t+=e.nsp+","),e.id!=null&&(t+=e.id),e.data!=null&&(t+=JSON.stringify(e.data,this.replacer)),t}encodeAsBinary(e){let t=mt(e),i=this.encodeAsString(t.packet),r=t.buffers;return r.unshift(i),r}};function yt(s){return Object.prototype.toString.call(s)==="[object Object]"}var Le=class s extends y{constructor(e){super(),this.reviver=e}add(e){let t;if(typeof e=="string"){if(this.reconstructor)throw new Error("got plaintext data when reconstructing a packet");t=this.decodeString(e);let i=t.type===p.BINARY_EVENT;i||t.type===p.BINARY_ACK?(t.type=i?p.EVENT:p.ACK,this.reconstructor=new Ue(t),t.attachments===0&&super.emitReserved("decoded",t)):super.emitReserved("decoded",t)}else if(re(e)||e.base64)if(this.reconstructor)t=this.reconstructor.takeBinaryData(e),t&&(this.reconstructor=null,super.emitReserved("decoded",t));else throw new Error("got binary data when not reconstructing a packet");else throw new Error("Unknown type: "+e)}decodeString(e){let t=0,i={type:Number(e.charAt(0))};if(p[i.type]===void 0)throw new Error("unknown packet type "+i.type);if(i.type===p.BINARY_EVENT||i.type===p.BINARY_ACK){let n=t+1;for(;e.charAt(++t)!=="-"&&t!=e.length;);let o=e.substring(n,t);if(o!=Number(o)||e.charAt(t)!=="-")throw new Error("Illegal attachments");i.attachments=Number(o)}if(e.charAt(t+1)==="/"){let n=t+1;for(;++t&&!(e.charAt(t)===","||t===e.length););i.nsp=e.substring(n,t)}else i.nsp="/";let r=e.charAt(t+1);if(r!==""&&Number(r)==r){let n=t+1;for(;++t;){let o=e.charAt(t);if(o==null||Number(o)!=o){--t;break}if(t===e.length)break}i.id=Number(e.substring(n,t+1))}if(e.charAt(++t)){let n=this.tryParse(e.substr(t));if(s.isPayloadValid(i.type,n))i.data=n;else throw new Error("invalid payload")}return i}tryParse(e){try{return JSON.parse(e,this.reviver)}catch{return!1}}static isPayloadValid(e,t){switch(e){case p.CONNECT:return yt(t);case p.DISCONNECT:return t===void 0;case p.CONNECT_ERROR:return typeof t=="string"||yt(t);case p.EVENT:case p.BINARY_EVENT:return Array.isArray(t)&&(typeof t[0]=="number"||typeof t[0]=="string"&&Gt.indexOf(t[0])===-1);case p.ACK:case p.BINARY_ACK:return Array.isArray(t)}}destroy(){this.reconstructor&&(this.reconstructor.finishedReconstruction(),this.reconstructor=null)}},Ue=class{constructor(e){this.packet=e,this.buffers=[],this.reconPack=e}takeBinaryData(e){if(this.buffers.push(e),this.buffers.length===this.reconPack.attachments){let t=gt(this.reconPack,this.buffers);return this.finishedReconstruction(),t}return null}finishedReconstruction(){this.reconPack=null,this.buffers=[]}};function S(s,e,t){return s.on(e,t),function(){s.off(e,t)}}var Xt=Object.freeze({connect:1,connect_error:1,disconnect:1,disconnecting:1,newListener:1,removeListener:1}),W=class extends y{constructor(e,t,i){super(),this.connected=!1,this.recovered=!1,this.receiveBuffer=[],this.sendBuffer=[],this._queue=[],this._queueSeq=0,this.ids=0,this.acks={},this.flags={},this.io=e,this.nsp=t,i&&i.auth&&(this.auth=i.auth),this._opts=Object.assign({},i),this.io._autoConnect&&this.open()}get disconnected(){return!this.connected}subEvents(){if(this.subs)return;let e=this.io;this.subs=[S(e,"open",this.onopen.bind(this)),S(e,"packet",this.onpacket.bind(this)),S(e,"error",this.onerror.bind(this)),S(e,"close",this.onclose.bind(this))]}get active(){return!!this.subs}connect(){return this.connected?this:(this.subEvents(),this.io._reconnecting||this.io.open(),this.io._readyState==="open"&&this.onopen(),this)}open(){return this.connect()}send(...e){return e.unshift("message"),this.emit.apply(this,e),this}emit(e,...t){if(Xt.hasOwnProperty(e))throw new Error('"'+e.toString()+'" is a reserved event name');if(t.unshift(e),this._opts.retries&&!this.flags.fromQueue&&!this.flags.volatile)return this._addToQueue(t),this;let i={type:p.EVENT,data:t};if(i.options={},i.options.compress=this.flags.compress!==!1,typeof t[t.length-1]=="function"){let o=this.ids++,c=t.pop();this._registerAckCallback(o,c),i.id=o}let r=this.io.engine&&this.io.engine.transport&&this.io.engine.transport.writable;return this.flags.volatile&&(!r||!this.connected)||(this.connected?(this.notifyOutgoingListeners(i),this.packet(i)):this.sendBuffer.push(i)),this.flags={},this}_registerAckCallback(e,t){var i;let r=(i=this.flags.timeout)!==null&&i!==void 0?i:this._opts.ackTimeout;if(r===void 0){this.acks[e]=t;return}let n=this.io.setTimeoutFn(()=>{delete this.acks[e];for(let o=0;o<this.sendBuffer.length;o++)this.sendBuffer[o].id===e&&this.sendBuffer.splice(o,1);t.call(this,new Error("operation has timed out"))},r);this.acks[e]=(...o)=>{this.io.clearTimeoutFn(n),t.apply(this,[null,...o])}}emitWithAck(e,...t){let i=this.flags.timeout!==void 0||this._opts.ackTimeout!==void 0;return new Promise((r,n)=>{t.push((o,c)=>i?o?n(o):r(c):r(o)),this.emit(e,...t)})}_addToQueue(e){let t;typeof e[e.length-1]=="function"&&(t=e.pop());let i={id:this._queueSeq++,tryCount:0,pending:!1,args:e,flags:Object.assign({fromQueue:!0},this.flags)};e.push((r,...n)=>i!==this._queue[0]?void 0:(r!==null?i.tryCount>this._opts.retries&&(this._queue.shift(),t&&t(r)):(this._queue.shift(),t&&t(null,...n)),i.pending=!1,this._drainQueue())),this._queue.push(i),this._drainQueue()}_drainQueue(e=!1){if(!this.connected||this._queue.length===0)return;let t=this._queue[0];t.pending&&!e||(t.pending=!0,t.tryCount++,this.flags=t.flags,this.emit.apply(this,t.args))}packet(e){e.nsp=this.nsp,this.io._packet(e)}onopen(){typeof this.auth=="function"?this.auth(e=>{this._sendConnectPacket(e)}):this._sendConnectPacket(this.auth)}_sendConnectPacket(e){this.packet({type:p.CONNECT,data:this._pid?Object.assign({pid:this._pid,offset:this._lastOffset},e):e})}onerror(e){this.connected||this.emitReserved("connect_error",e)}onclose(e,t){this.connected=!1,delete this.id,this.emitReserved("disconnect",e,t)}onpacket(e){if(e.nsp===this.nsp)switch(e.type){case p.CONNECT:e.data&&e.data.sid?this.onconnect(e.data.sid,e.data.pid):this.emitReserved("connect_error",new Error("It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)"));break;case p.EVENT:case p.BINARY_EVENT:this.onevent(e);break;case p.ACK:case p.BINARY_ACK:this.onack(e);break;case p.DISCONNECT:this.ondisconnect();break;case p.CONNECT_ERROR:this.destroy();let i=new Error(e.data.message);i.data=e.data.data,this.emitReserved("connect_error",i);break}}onevent(e){let t=e.data||[];e.id!=null&&t.push(this.ack(e.id)),this.connected?this.emitEvent(t):this.receiveBuffer.push(Object.freeze(t))}emitEvent(e){if(this._anyListeners&&this._anyListeners.length){let t=this._anyListeners.slice();for(let i of t)i.apply(this,e)}super.emit.apply(this,e),this._pid&&e.length&&typeof e[e.length-1]=="string"&&(this._lastOffset=e[e.length-1])}ack(e){let t=this,i=!1;return function(...r){i||(i=!0,t.packet({type:p.ACK,id:e,data:r}))}}onack(e){let t=this.acks[e.id];typeof t=="function"&&(t.apply(this,e.data),delete this.acks[e.id])}onconnect(e,t){this.id=e,this.recovered=t&&this._pid===t,this._pid=t,this.connected=!0,this.emitBuffered(),this.emitReserved("connect"),this._drainQueue(!0)}emitBuffered(){this.receiveBuffer.forEach(e=>this.emitEvent(e)),this.receiveBuffer=[],this.sendBuffer.forEach(e=>{this.notifyOutgoingListeners(e),this.packet(e)}),this.sendBuffer=[]}ondisconnect(){this.destroy(),this.onclose("io server disconnect")}destroy(){this.subs&&(this.subs.forEach(e=>e()),this.subs=void 0),this.io._destroy(this)}disconnect(){return this.connected&&this.packet({type:p.DISCONNECT}),this.destroy(),this.connected&&this.onclose("io client disconnect"),this}close(){return this.disconnect()}compress(e){return this.flags.compress=e,this}get volatile(){return this.flags.volatile=!0,this}timeout(e){return this.flags.timeout=e,this}onAny(e){return this._anyListeners=this._anyListeners||[],this._anyListeners.push(e),this}prependAny(e){return this._anyListeners=this._anyListeners||[],this._anyListeners.unshift(e),this}offAny(e){if(!this._anyListeners)return this;if(e){let t=this._anyListeners;for(let i=0;i<t.length;i++)if(e===t[i])return t.splice(i,1),this}else this._anyListeners=[];return this}listenersAny(){return this._anyListeners||[]}onAnyOutgoing(e){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.push(e),this}prependAnyOutgoing(e){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.unshift(e),this}offAnyOutgoing(e){if(!this._anyOutgoingListeners)return this;if(e){let t=this._anyOutgoingListeners;for(let i=0;i<t.length;i++)if(e===t[i])return t.splice(i,1),this}else this._anyOutgoingListeners=[];return this}listenersAnyOutgoing(){return this._anyOutgoingListeners||[]}notifyOutgoingListeners(e){if(this._anyOutgoingListeners&&this._anyOutgoingListeners.length){let t=this._anyOutgoingListeners.slice();for(let i of t)i.apply(this,e.data)}}};function P(s){s=s||{},this.ms=s.min||100,this.max=s.max||1e4,this.factor=s.factor||2,this.jitter=s.jitter>0&&s.jitter<=1?s.jitter:0,this.attempts=0}P.prototype.duration=function(){var s=this.ms*Math.pow(this.factor,this.attempts++);if(this.jitter){var e=Math.random(),t=Math.floor(e*this.jitter*s);s=Math.floor(e*10)&1?s+t:s-t}return Math.min(s,this.max)|0};P.prototype.reset=function(){this.attempts=0};P.prototype.setMin=function(s){this.ms=s};P.prototype.setMax=function(s){this.max=s};P.prototype.setJitter=function(s){this.jitter=s};var K=class extends y{constructor(e,t){var i;super(),this.nsps={},this.subs=[],e&&typeof e=="object"&&(t=e,e=void 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0};f.addedNodes.length>0&&(b.addedNodes=[],f.addedNodes.forEach((x,k)=>{b.addedNodes.push(g.nodeGet(f.addedNodes[k]))})),f.removedNodes.length>0&&(b.removedNodes=[],f.removedNodes.forEach((x,k)=>{b.removedNodes.push(g.nodeGet(f.removedNodes[k]))})),f.type==="attributes"&&(b.attributeName=f.attributeName,b.newValue=f.target.attributes[f.attributeName].value),l.push(b)}),o._dispatchCustomEvent("uibuilder:domChange",l),i===!0&&o.send({_ui:{cssSelector:e,uiChanges:l},topic:o.topic||"DOM Changes for '".concat(e,"'")}),r===!0&&a("info","uibuilder.module.js:uiWatch","DOM Changes for '".concat(e,"'"),{uiChanges:l},{mutationList:c})()}),u(this,M)[e].observe(n,{attributes:!0,childList:!0,subtree:!0,characterData:!0}),a("trace","uibuilder.module.js:uiWatch","Started Watching DOM changes for '".concat(e,"'"))()):(u(this,M)[e].disconnect(),delete u(this,M)[e],a("trace","uibuilder.module.js:uiWatch","Stopped Watching DOM changes for '".concat(e,"'"))()),t}clearHtmlCache(){this.removeStore("htmlCache"),a("trace","uibuilder.module.js:clearHtmlCache","HTML cache cleared")()}restoreHtmlFromCache(){let e=this.getStore("htmlCache");if(e){let t=document.getElementsByTagName("html")[0];t.innerHTML=e,a("trace","uibuilder.module.js:restoreHtmlFromCache","Restored HTML from cache")()}else a("trace","uibuilder.module.js:restoreHtmlFromCache","No cache to restore")()}saveHtmlCache(){this.setStore("htmlCache",document.documentElement.innerHTML)}watchDom(e){let t=document.documentElement,i=this;this._htmlObserver||(this._htmlObserver=new MutationObserver(function(){this.takeRecords(),i.saveHtmlCache()})),e===!0||e===void 0?(this._htmlObserver.observe(t,{attributes:!0,childList:!0,subtree:!0,characterData:!0}),a("trace","uibuilder.module.js:watchDom","Started Watching and saving DOM changes")()):(this._htmlObserver.disconnect(),a("trace","uibuilder.module.js:watchDom","Stopped Watching and saving DOM changes")())}_send(e,t,i=""){t==null&&(t=this._ioChannels.client),t===this._ioChannels.client?e=Me(e,"payload"):t===this._ioChannels.control&&(e=Me(e,"uibuilderCtrl"),Object.prototype.hasOwnProperty.call(e,"uibuilderCtrl")||(e.uibuilderCtrl="manual send"),e.from="client"),e._socketId=this._socket.id,i===""&&this.originator!==""&&(i=this.originator),i!==""&&Object.assign(e,{_uib:{originator:i}}),Object.prototype.hasOwnProperty.call(e,"topic")||(this.topic!==void 0&&this.topic!==""?e.topic=this.topic:Object.prototype.hasOwnProperty.call(this,"msg")&&Object.prototype.hasOwnProperty.call(this.msg,"topic")&&(e.topic=this.msg.topic)),e._ui&&(e._ui.from="client");let r;t===this._ioChannels.client?(this.set("sentMsg",e),r=this.set("msgsSent",++this.msgsSent)):t===this._ioChannels.control&&(this.set("sentCtrlMsg",e),r=this.set("msgsSentCtrl",++this.msgsSentCtrl)),a("trace","Uib:_send"," Channel '".concat(t,"'. Sending msg #").concat(r),e)(),this._socket.emit(t,e)}send(e,t=""){this._send(e,this._ioChannels.client,t)}sendCtrl(e){this._send(e,this._ioChannels.control)}eventSend(e,t=""){if(this.$attrs){a("error","Uib:eventSend","`this` has been usurped by VueJS. Make sure that you wrap the call in a function: `doEvent: function (event) { uibuilder.eventSend(event) },`")();return}if(!e&&!event){a("warn","Uib:eventSend","Neither the domevent nor the hidden event properties are set. You probably called this function directly rather than applying to an on click event.")();return}if((!e||!e.constructor)&&(e=event),!e.constructor.name.endsWith("Event")||!e.currentTarget){a("warn","Uib:eventSend","ARGUMENT NOT A DOM EVENT - use data attributes not function arguments to pass data. Arg Type: ".concat(e.constructor.name),e)();return}e.preventDefault();let i=e.currentTarget,r={};Object.keys(i).forEach(m=>{m.startsWith("_")||(r[m]=i[m])});let n=["class","id","name"],o;try{o=Object.assign({},...Array.from(i.attributes,({name:m,value:_e})=>{if(!n.includes(m))return{[m]:_e}}))}catch{}let c,l=[];i.form&&(c={},c.valid=i.form.checkValidity(),Object.values(i.form).forEach((m,_e)=>{let V=m.id!==""?m.id:m.name!==""?m.name:"".concat(_e,"-").concat(m.type);if(V!==""&&m.type){if("checked"in m&&m.value==="on"&&(m.value=m.checked.toString()),l.push({key:V,val:m.value}),c[V]={id:m.id,name:m.name,value:m.value,valid:m.checkValidity(),type:m.type},c[V].valid===!1){let w=m.validity;c[V].validity={badInput:w.badInput===!0?w.badInput:void 0,customError:w.customError===!0?w.customError:void 0,patternMismatch:w.patternMismatch===!0?w.patternMismatch:void 0,rangeOverflow:w.rangeOverflow===!0?w.rangeOverflow:void 0,rangeUnderflow:w.rangeUnderflow===!0?w.rangeUnderflow:void 0,stepMismatch:w.stepMismatch===!0?w.stepMismatch:void 0,tooLong:w.tooLong===!0?w.tooLong:void 0,tooShort:w.tooShort===!0?w.tooShort:void 0,typeMismatch:w.typeMismatch===!0?w.typeMismatch:void 0,valueMissing:w.valueMissing===!0?w.valueMissing:void 0}}m.dataset&&(c[V].data=m.dataset)}}));let f;try{f=Array.from(i.classList)}catch{}let b={...i.dataset},x;Object.prototype.toString.call(i)==="[object Notification]"&&(b="notification-".concat(i.userAction),x={actions:i.actions,badge:i.badge,body:i.body,data:i.data,dir:i.dir,icon:i.icon,image:i.image,lang:i.lang,renotify:i.renotify,requireInteraction:i.requireInteraction,silent:i.silent,tag:i.tag,timestamp:i.timestamp,title:i.title,vibrate:i.vibrate});let k={payload:b,_ui:{type:"eventSend",id:i.id!==""?i.id:void 0,name:i.name!==""?i.name:void 0,slotText:i.textContent?i.textContent.substring(0,255):void 0,form:c,props:r,attribs:o,classes:f,notification:x,event:e.type,altKey:e.altKey,ctrlKey:e.ctrlKey,shiftKey:e.shiftKey,metaKey:e.metaKey,pointerType:e.pointerType,nodeName:i.nodeName,clientId:this.clientId,pageName:this.pageName,tabId:this.tabId}};l.length>0&&l.forEach(m=>{k.payload[m.key]=m.val}),e.type==="change"&&(k._ui.newValue=k.payload.value="checked"in i?i.checked:e.target.value),a("trace","Uib:eventSend","Sending msg to Node-RED",k)(),i.dataset&&i.dataset.length===0&&a("warn","Uib:eventSend","No payload in msg. data-* attributes should be used.")(),this._send(k,this._ioChannels.client,t)}htmlSend(e="",t=!0){let i="<!doctype html>\n".concat(document.documentElement.outerHTML),r={payload:i,length:i.length,topic:this.topic};return a("trace","Uib:htmlSend","Sending full HTML to Node-RED",r)(),t===!0&&this._send(r,this._ioChannels.client,e),i}_uibCommand(e){var l;if(!e._uib||!e._uib.command){a("error","uibuilder:_uibCommand","Invalid command message received",{msg:e})(),e.payload=e.error="Invalid command message received",this.send(e);return}let t=e._uib.command;if(!u(this,ve).includes(t.trim())){a("error","Uib:_uibCommand","Command '".concat(t," is not allowed to be called externally"))();return}let i=e._uib.prop,r=e._uib.value,n=(l=e._uib.quiet)!=null?l:!1,o,c;switch(t){case"elementIsVisible":{o=this.elementIsVisible(i);break}case"elementExists":{o=this.elementExists(i,!1),c='Element "'.concat(i,'" ').concat(o?"exists":"does not exist");break}case"get":{o=this.get(i);break}case"getManagedVarList":{i==="full"?o=this.getManagedVarList():o=Object.values(this.getManagedVarList());break}case"getWatchedVars":{i==="full"?o=this.getWatchedVars():o=Object.values(this.getWatchedVars());break}case"htmlSend":{o=this.htmlSend("",!1);break}case"include":{o=g.include(i,r);break}case"navigate":{let f;i?f=i:r&&(f=r),o=this.navigate(f);break}case"scrollTo":{o=this.scrollTo(i,r);break}case"set":{let f=!1,b=!1;e._uib.options&&e._uib.options.store&&(e._uib.options.store===!0&&(f=!0),e._uib.options.autoload===!0&&(b=!0)),o=this.set(i,r,f,b);break}case"showMsg":{o=this.showMsg(r,i);break}case"showStatus":{o=this.showStatus(r,i);break}case"uiGet":{o=g.uiGet(i,r);break}case"uiWatch":{o=this.uiWatch(i);break}case"watchUrlHash":{o=this.watchUrlHash(i);break}default:{a("warning","Uib:_uibCommand","Command '".concat(t,"' not yet implemented"))();break}}n!==!0&&(o===void 0&&(o="'".concat(i,"' is undefined")),Object(o).constructor===Promise?o.then(f=>(e.payload=e._uib.response=f,e.info=e._uib.info=c,e.topic||(e.topic=this.topic||"uib ".concat(t," for '").concat(i,"'")),this.send(e),!0)).catch(f=>{a(0,"Uib:_uibCommand","Error: ",f)()}):(e.payload=e._uib.response=o,e.info=e._uib.info=c,e.topic||(e.topic=this.topic||"uib ".concat(t," for '").concat(i,"'")),this.send(e)))}_forThis(e){let t=!0;return e.pageName&&e.pageName!==this.pageName&&(a("trace","Uib:_msgRcvdEvents:_uib","Not for this page")(),t=!1),e.clientId&&e.clientId!==this.clientId&&(a("trace","Uib:_msgRcvdEvents:_uib","Not for this clientId")(),t=!1),e.tabId&&e.tabId!==this.tabId&&(a("trace","Uib:_msgRcvdEvents:_uib","Not for this tabId")(),t=!1),t}_msgRcvdEvents(e){if(this._dispatchCustomEvent("uibuilder:stdMsgReceived",e),e.topic&&this._dispatchCustomEvent("uibuilder:msg:topic:".concat(e.topic),e),e._uib){if(!this._forThis(e._uib))return;if(e._uib.reload===!0){a("trace","Uib:_msgRcvdEvents:_uib:reload","reloading")(),location.reload();return}if(e._uib.command){this._uibCommand(e);return}e._uib.componentRef==="globalNotification"&&g.showDialog("notify",e._uib.options,e),e._uib.componentRef==="globalAlert"&&g.showDialog("alert",e._uib.options,e)}if(e._ui){if(!this._forThis(e._ui))return;a("trace","Uib:_msgRcvdEvents:_ui","Calling _uiManager")(),this._dispatchCustomEvent("uibuilder:msg:_ui",e),g._uiManager(e)}}_stdMsgFromServer(e){e=Me(e,"payload"),!(e._uib&&!this._forThis(e._uib))&&(e._ui&&!this._forThis(e._ui)||(this._checkTimestamp(e),this.set("msgsReceived",++this.msgsReceived),this._msgRcvdEvents(e),"_ui"in e&&!("payload"in e)||this.set("msg",e),a("info","Uib:ioSetup:stdMsgFromServer","Channel '".concat(this._ioChannels.server,"'. Received msg #").concat(this.msgsReceived,"."),e)()))}_ctrlMsgFromServer(e){if(e===null)e={};else if(typeof e!="object"){let t={};t["uibuilderCtrl:"+this._ioChannels.control]=e,e=t}switch(this._checkTimestamp(e),this.set("ctrlMsg",e),this.set("msgsCtrlReceived",++this.msgsCtrlReceived),a("trace","Uib:ioSetup:_ctrlMsgFromServer","Channel '".concat(this._ioChannels.control,"'. Received control msg #").concat(this.msgsCtrlReceived),e)(),e.uibuilderCtrl){case"shutdown":{a("info","Uib:ioSetup:".concat(this._ioChannels.control),'\u274C Received "shutdown" from server')(),this.set("serverShutdown",void 0);break}case"client connect":{a("trace","Uib:ioSetup:".concat(this._ioChannels.control),'Received "client connect" from server')(),a("info","Uib:ioSetup:".concat(this._ioChannels.control),"\u2705 Server connected. Version: ".concat(e.version,"\nServer time: ").concat(e.serverTimestamp,", Sever time offset: ").concat(this.serverTimeOffset," hours"))(),E._meta.version.startsWith(e.version.split("-")[0])||a("warn","Uib:ioSetup:".concat(this._ioChannels.control),"Server version (".concat(e.version,") not the same as the client version (").concat(E._meta.version,")"))(),this.autoSendReady===!0&&a("trace","Uib:ioSetup:".concat(this._ioChannels.control,"/client connect"),"Auto-sending ready-for-content/replay msg to server");break}default:a("trace","uibuilderfe:ioSetup:".concat(this._ioChannels.control),"Received ".concat(e.uibuilderCtrl," from server"))}}beaconLog(e,t){t||(t="debug"),navigator.sendBeacon("./_clientLog","".concat(t,"::").concat(e))}logToServer(){this.sendCtrl({uibuilderCtrl:"client log message",payload:arguments,_socketId:this._socket.id,clientId:this.clientId,tabId:this.tabId,pageName:this.pageName,connections:this.connectedNum,lastNavType:this.lastNavType})}_getIOnamespace(){let e;if(e=this.cookies["uibuilder-namespace"],e===void 0||e===""){let t=window.location.pathname.split("/").filter(function(i){return i.trim()!==""});t.length>0&&t[t.length-1].endsWith(".html")&&t.pop(),e=t.pop(),a("trace","uibuilder.module.js:getIOnamespace","Socket.IO namespace found via url path: ".concat(e))()}else a("trace","uibuilder.module.js:getIOnamespace","Socket.IO namespace found via cookie: ".concat(e))();return this.url=e,e="/"+e,a("trace","uibuilder.module.js:getIOnamespace","Final Socket.IO namespace: ".concat(e))(),e}_checkConnect(e,t,i=1){if(navigator.onLine!==!1)return e||(e=this.retryMs),t||(t=this.retryFactor),a("trace","Uib:checkConnect","Checking connection. Connected: ".concat(this._socket.connected,". Timer: ").concat(u(this,_),". Depth: ").concat(i,". Delay: ").concat(e,". Factor: ").concat(t),this._socket)(),this._socket.connected===!0?(u(this,_)&&(window.clearTimeout(u(this,_)),A(this,_,null)),this.set("ioConnected",!0),this.set("socketError",null),!0):(this.set("ioConnected",!1),u(this,_)&&window.clearTimeout(u(this,_)),A(this,_,window.setTimeout(()=>{a("warn","Uib:checkConnect:setTimeout","Socket.IO reconnection attempt. Current delay: ".concat(e,". Depth: ").concat(i))(),this._socket.close(),this._socket.connect(),A(this,_,null),this._checkConnect(e*t,t,i++)},e)),!1)}_onConnect(){a("info","Uib:ioSetup","\u2705 SOCKET CONNECTED. Connection count: ".concat(this.connectedNum,", Is a Recovery?: ").concat(this._socket.recovered,". \nNamespace: ").concat(this.ioNamespace))(),this._dispatchCustomEvent("uibuilder:socket:connected",{numConnections:this.connectedNum,isRecovery:this._socket.recovered}),this._checkConnect()}_onDisconnect(e){a("info","Uib:ioSetup:socket-disconnect","\u26D4 Socket Disconnected. Reason: ".concat(e))(),this._dispatchCustomEvent("uibuilder:socket:disconnected",e),this._checkConnect()}_ioSetup(){return J===void 0?(a("error","Uib:ioSetup","Socket.IO client not loaded, Node-RED comms will not work")(),!1):(this._socket&&(a("trace","Uib:ioSetup","Removing listeners in preparation for redoing Socket.IO connections")(),u(this,_)&&(window.clearTimeout(u(this,_)),A(this,_,null)),this._socket.close(),this._socket.offAny(),this._socket=void 0,this.set("ioConnected",!1)),this.socketOptions.path=this.ioPath,a("trace","Uib:ioSetup","About to create IO object. Transports: [".concat(this.socketOptions.transports.join(", "),"]"))(),this._socket=J(this.ioNamespace,this.socketOptions),this._socket.on("connect",this._onConnect.bind(this)),this._socket.on(this._ioChannels.server,this._stdMsgFromServer.bind(this)),this._socket.on(this._ioChannels.control,this._ctrlMsgFromServer.bind(this)),this._socket.on("disconnect",this._onDisconnect.bind(this)),this._socket.on("connect_error",e=>{navigator.onLine!==!1&&(a("error","Uib:ioSetup:connect_error","\u274C Socket.IO Connect Error. Reason: ".concat(e.message),e)(),this.set("ioConnected",!1),this.set("socketError",e),this._dispatchCustomEvent("uibuilder:socket:disconnected",e))}),this._socket.on("error",e=>{a("error","Uib:ioSetup:error","\u274C Socket.IO Error. Reason: ".concat(e.message),e)(),this.set("ioConnected",!1),this.set("socketError",e),this._dispatchCustomEvent("uibuilder:socket:disconnected",e)}),this._checkConnect(),!0)}start(e){a("trace","Uib:start","Starting")(),u(this,oe)&&this.cancelChange("msg",u(this,oe)),this.started===!0&&a("info","Uib:start","Start function already called. Resetting Socket.IO and msg handler.")(),a("log","Uib:start","Cookies: ",this.cookies,"\nClient ID: ".concat(this.clientId))(),a("trace","Uib:start","ioNamespace: ",this.ioNamespace,"\nioPath: ".concat(this.ioPath))(),e&&(e.ioNamespace!==void 0&&e.ioNamespace!==null&&e.ioNamespace!==""&&this.set("ioNamespace",e.ioNamespace),e.ioPath!==void 0&&e.ioPath!==null&&e.ioPath!==""&&this.set("ioPath",e.ioPath)),document.styleSheets.length>=1||document.styleSheets.length===1&&document.styleSheets[0].cssRules.length===0?a("info","Uib:start","Styles already loaded so not loading uibuilder default styles.")():e&&e.loadStylesheet===!1?a("info","Uib:start","No styles loaded & options.loadStylesheet === false.")():(a("info","Uib:start","No styles loaded, loading uibuilder default styles.")(),this.loadStyleSrc("".concat(this.httpNodeRoot,"/uibuilder/uib-brand.min.css")));let[t]=performance.getEntriesByType("navigation");if(this.set("lastNavType",t.type),this.set("started",this._ioSetup()),this.started===!0?a("trace","Uib:start","Start completed. Socket.IO client library loaded.")():a("error","Uib:start","Start completed. ERROR: Socket.IO client library NOT LOADED.")(),this._watchHashChanges(),window.Vue){this.set("isVue",!0);try{this.set("vueVersion",window.Vue.version)}catch{}a("trace","Uib:start","VueJS is loaded. Version: ".concat(this.vueVersion))()}else a("trace","Uib:start","VueJS is not loaded.")();window.DOMPurify?(this.set("purify",!0),a("trace","Uib:start","DOMPurify is loaded.")()):a("trace","Uib:start","DOMPurify is not loaded.")(),window.markdownit?(this.set("markdown",!0),a("trace","Uib:start","Markdown-IT is loaded.")()):a("trace","Uib:start","Markdown-IT is not loaded.")(),this.onChange("msg",i=>{if(u(this,z)===!0){let r=document.getElementById("uib_last_msg");r&&(r.innerHTML=this.syntaxHighlight(i))}}),this._dispatchCustomEvent("uibuilder:startComplete")}},q=new WeakMap,O=new WeakMap,T=new WeakMap,_=new WeakMap,oe=new WeakMap,z=new WeakMap,Y=new WeakMap,H=new WeakMap,ve=new WeakMap,ae=new WeakMap,ce=new WeakMap,M=new WeakMap,h(E,"_meta",{version:wt,type:"module",displayName:"uibuilder"}),E),ke=new ei;window.uibuilder?a("error","uibuilder.module.js","`uibuilder` already assigned to window. Have you tried to load it more than once?"):window.uibuilder=ke;window.uib?a("warn","uibuilder.module.js","`uib` shortcut already assigned to window."):window.uib=ke;window.$?a("warn","uibuilder.module.js","Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` instead."):window.$=window.uibuilder.$;window.$$?a("warn","uibuilder.module.js","Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` instead."):window.$$=window.uibuilder.$$;var Js=ke;ke.start();customElements.define("uib-var",G);export{ei as Uib,Js as default,ke as uibuilder};
 //# sourceMappingURL=uibuilder.esm.min.js.map
diff --git a/front-end/uibuilder.esm.min.js.map b/front-end/uibuilder.esm.min.js.map
index 424cc73a..44519012 100644
--- a/front-end/uibuilder.esm.min.js.map
+++ b/front-end/uibuilder.esm.min.js.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
   "sources": ["src/front-end-module/ui.js", "src/front-end-module/uibuilder.module.js", "src/components/uib-var.js", "node_modules/engine.io-parser/build/esm/commons.js", "node_modules/engine.io-parser/build/esm/encodePacket.browser.js", "node_modules/engine.io-parser/build/esm/contrib/base64-arraybuffer.js", "node_modules/engine.io-parser/build/esm/decodePacket.browser.js", "node_modules/engine.io-parser/build/esm/index.js", "node_modules/@socket.io/component-emitter/index.mjs", "node_modules/engine.io-client/build/esm/globalThis.browser.js", "node_modules/engine.io-client/build/esm/util.js", "node_modules/engine.io-client/build/esm/contrib/parseqs.js", "node_modules/engine.io-client/build/esm/transport.js", "node_modules/engine.io-client/build/esm/contrib/yeast.js", "node_modules/engine.io-client/build/esm/contrib/has-cors.js", "node_modules/engine.io-client/build/esm/transports/xmlhttprequest.browser.js", "node_modules/engine.io-client/build/esm/transports/polling.js", "node_modules/engine.io-client/build/esm/transports/websocket-constructor.browser.js", "node_modules/engine.io-client/build/esm/transports/websocket.js", "node_modules/engine.io-client/build/esm/transports/webtransport.js", "node_modules/engine.io-client/build/esm/transports/index.js", "node_modules/engine.io-client/build/esm/contrib/parseuri.js", "node_modules/engine.io-client/build/esm/socket.js", "node_modules/engine.io-client/build/esm/index.js", "node_modules/socket.io-client/build/esm/url.js", "node_modules/socket.io-parser/build/esm/index.js", "node_modules/socket.io-parser/build/esm/is-binary.js", "node_modules/socket.io-parser/build/esm/binary.js", "node_modules/socket.io-client/build/esm/on.js", "node_modules/socket.io-client/build/esm/socket.js", "node_modules/socket.io-client/build/esm/contrib/backo2.js", "node_modules/socket.io-client/build/esm/manager.js", "node_modules/socket.io-client/build/esm/index.js"],
-  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        this._uiManager(msg)\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += msg.payload\n        if (ui.content) content += ui.content\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    // Namespaces - See https://stackoverflow.com/a/52572048/1309986\n    // const NAMESPACES = {\n    //     svg: 'http://www.w3.org/2000/svg',\n    //     html: 'http://www.w3.org/1999/xhtml',\n    //     xml: 'http://www.w3.org/XML/1998/namespace',\n    //     xlink: 'http://www.w3.org/1999/xlink',\n    //     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n    // }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    /** External alias for _uiComposeComponent\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n\n    } // --- end of _uiManager ---\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName !== null && propName !== '') {\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    // Nightmare of different object types in a DOM Element!\n                    if (prop.constructor.name === 'NamedNodeMap') { // Attributes\n                        const p = {}\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                        out.push(p)\n                    } else if (!prop.constructor.name.toLowerCase().includes('map')) { // Ordinary properties\n                        out.push({\n                            [propName]: prop\n                        })\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                        out.push(p)\n                    }\n                }\n\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n", "/* This is the Front-End JavaScript for uibuilder  in HTML Module form\n  It provides a number of global objects that can be used in your own javascript.\n  see the docs folder `./docs/uibuilder.module.md` for details of how to use this fully.\n\n  Please use the default index.js file for your own code and leave this as-is.\n  See Uib._meta for client version string\n\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n//#region --- Type Defs --- //\n/**\n * A string containing HTML markup\n * @typedef {string} html\n */\n//#endregion --- Type Defs --- //\n\n//#region --- We need the Socket.IO & ui libraries & the uib-var component  --- //\n// @ts-ignore - Note: Only works when using esbuild to bundle\nimport Ui from './ui'\nimport UibVar from '../components/uib-var'\nimport io from 'socket.io-client'\n\n// TODO - Maybe - check if already loaded as window['io']?\n// TODO - Maybe - Should this be moved to inside the class - would know the httpRoot then so less need to guess?\n// TODO           Or, could pull the cookie processing out of the class\n// const ioLocns = [ // Likely locations of the Socket.IO client library\n//     // Where it should normally be\n//     '../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and haven't changed httpNodeRoot\n//     '/uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and have changed httpNodeRoot\n//     '../../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Direct from the Internet - last ditch attempt\n//     'https://cdn.jsdelivr.net/npm/socket.io-client/+esm',\n// ]\n\n// let io\n// for (const locn of ioLocns) {\n//     try {\n//         ({ io } = await import(locn))\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library found at '${locn}'`)()\n//     } catch (e) {\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library not found at '${locn}'`)()\n//     }\n//     if (io) break\n// }\n// if (!io) log('error', 'uibuilder.module.js', 'Socket.IO client failed to load')()\n//#endregion -------- -------- -------- //\n\nconst version = '6.8.0-src'\n\n// TODO Add option to allow log events to be sent back to Node-RED as uib ctrl msgs\n//#region --- Module-level utility functions --- //\n\n// @ts-ignore Detect whether the loaded library is minified or not\nconst isMinified = !(/param/).test(function (param) { }) // eslint-disable-line no-unused-vars\n\n//#region --- print/console - debugging output functions --- //\n\n/** Default log level - Error & Warn */\nlet logLevel = isMinified ? 0 : 1  // When using minified lib, assume production and only log errors otherwise also log warn\n// function changeLogLevel(level) {\n//     logLevel = level\n//     console.trace = logLevel < 4 ? function(){} : console.trace\n//     console.debug = logLevel < 2 ? function(){} : console.debug\n//     if ( logLevel < 1 ) {\n//         console.log = console.group = console.groupEnd =  function(){}\n//     }\n// }\n\n// Experimental\nconst LOG_STYLES = {\n    // 0\n    error: {\n        css: 'background: red; color: black;',\n        txtCss: 'color: red; ',\n        pre: '\u26D4 ',\n        console: 'error',  // or trace\n    },\n    // 1\n    warn: {\n        css: 'background: darkorange; color: black;',\n        txtCss: 'color: darkorange; ',\n        pre: '\u26A0 ',\n        console: 'warn',\n    },\n    // 2\n    info: {\n        css: 'background: aqua; color: black;',\n        txtCss: 'color: aqua;',\n        pre: '\u2757 ',\n        console: 'info',\n    },\n    // 3\n    log: {\n        css: 'background: grey; color: yellow;',\n        txtCss: 'color: grey;',\n        pre: '',\n        console: 'log',\n    },\n    // 4\n    debug: {\n        css: 'background: chartreuse; color: black;',\n        txtCss: 'color: chartreuse;',\n        pre: '',\n        console: 'debug',\n    },\n    // 5\n    trace: {\n        css: 'background: indigo; color: yellow;',\n        txtCss: 'color: hotpink;',\n        pre: '',\n        console: 'log',\n    },\n\n    names: ['error', 'warn', 'info', 'log', 'debug', 'trace'],\n    reset: 'color: inherit;',\n    head: 'font-weight:bold; font-style:italic;',\n    level: 'font-weight:bold; border-radius: 3px; padding: 2px 5px; display:inline-block;',\n}\n/** Custom logging. e.g. log(2, 'here:there', 'jiminy', {fred:'jim'})()\n * @returns {Function} Log function @example log(2, 'here:there', 'jiminy', {fred:'jim'})()\n */\nfunction log() {\n    // Get the args\n    const args = Array.prototype.slice.call(arguments)\n\n    // 1st arg is the log level/type\n    let level = args.shift()\n    let strLevel\n    switch (level) {\n        case 'trace':\n        case 5: {\n            if (logLevel < 5) break\n            level = 5 // make sure level is numeric\n            strLevel = 'trace'\n            break\n        }\n\n        case 'debug':\n        case 4: {\n            if (logLevel < 4) break\n            level = 4\n            strLevel = 'debug'\n            break\n        }\n\n        case 'log':\n        case 3: {\n            if (logLevel < 3) break\n            level = 3\n            strLevel = 'log'\n            break\n        }\n\n        case 'info':\n        case '':\n        case 2: {\n            if (logLevel < 2) break\n            level = 2\n            strLevel = 'info'\n            break\n        }\n\n        case 'warn':\n        case 1: {\n            if (logLevel < 1) break\n            level = 1\n            strLevel = 'warn'\n            break\n        }\n\n        case 'error':\n        case 'err':\n        case 0: {\n            if (logLevel < 0) break\n            level = 0\n            strLevel = 'error'\n            break\n        }\n\n        default: {\n            level = -1\n            break\n        }\n\n    }\n\n    // If set to something unknown, no log output\n    if (strLevel === undefined) return function () { }\n\n    // 2nd arg is a heading that will be colour highlighted\n    const head = args.shift()\n\n    // Bind back to console.log (could use console[strLevel] but some levels ignore some formatting, use console.xxx directly or dedicated fn)\n    return Function.prototype.bind.call(\n        console[LOG_STYLES[strLevel].console],\n        console,\n        `%c${LOG_STYLES[strLevel].pre}${strLevel}%c [${head}]`, `${LOG_STYLES.level} ${LOG_STYLES[strLevel].css}`, `${LOG_STYLES.head} ${LOG_STYLES[strLevel].txtCss}`,\n        ...args\n    )\n}\n//#endregion\n\n/** A hack to dynamically load a remote module and wait until it is loaded\n * @param {string} url The URL of the module to load\n * @returns {object|null} Either the result object or null (if the load fails)\n */\n// function loadModule(url) { // eslint-disable-line no-unused-vars\n//     let done\n\n//     import(url)\n//         .then(res => {\n//             log('debug', '>> then >>', res)()\n//             done = res\n//         })\n//         .catch(err => {\n//             console.error(`[uibuilder:loadModule] Could not load module ${url}`, err)\n//             done = null\n//         })\n\n//     //  eslint-disable-next-line no-empty\n//     while (!done) { } // eslint-disable-line no-unmodified-loop-condition\n\n//     return done\n// }\n\n/** Makes a null or non-object into an object\n * If not null, moves \"thing\" to {payload:thing}\n *\n * @param {*} thing Thing to check\n * @param {string} [property='payload'] property that \"thing\" is moved to if not null and not an object\n * @returns {!object} _\n */\nfunction makeMeAnObject(thing, property) {\n    if (!property) property = 'payload'\n    if (typeof property !== 'string') {\n        log('warn', 'uibuilderfe:makeMeAnObject', `WARNING: property parameter must be a string and not: ${typeof property}`)()\n        property = 'payload'\n    }\n    let out = {}\n    if ( thing !== null && thing.constructor.name === 'Object' ) {\n        out = thing\n    } else if (thing !== null) {\n        out[property] = thing\n    }\n    return out\n} // --- End of make me an object --- //\n\n/** Joins all arguments as a URL string\n * see http://stackoverflow.com/a/28592528/3016654\n * since v1.0.10, fixed potential double // issue\n * arguments {string} URL fragments\n * @returns {string} _\n */\nfunction urlJoin() {\n    const paths = Array.prototype.slice.call(arguments)\n    const url = '/' + paths.map(function (e) {\n        return e.replace(/^\\/|\\/$/g, '')\n    })\n        .filter(function (e) {\n            return e\n        })\n        .join('/')\n    return url.replace('//', '/')\n} // ---- End of urlJoin ---- //\n\n/** Convert JSON to Syntax Highlighted HTML\n * @param {object} json A JSON/JavaScript Object\n * @returns {html} Object reformatted as highlighted HTML\n */\nfunction syntaxHighlight(json) {\n    if (json === undefined) {\n        json = '<span class=\"undefined\">undefined</span>'\n    } else {\n        try {\n            json = JSON.stringify(json, undefined, 4)\n            // json = json.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;') // eslint-disable-line newline-per-chained-call\n            json = json.replace(/(\"(\\\\u[a-zA-Z0-9]{4}|\\\\[^u]|[^\\\\\"])*\"(\\s*:)?|\\b(true|false|null)\\b|-?\\d+(?:\\.\\d*)?(?:[eE][+-]?\\d+)?)/g, function (match) { // eslint-disable-line prefer-named-capture-group\n                let cls = 'number'\n                if ((/^\"/).test(match)) {\n                    if ((/:$/).test(match)) {\n                        cls = 'key'\n                    } else {\n                        cls = 'string'\n                    }\n                } else if ((/true|false/).test(match)) {\n                    cls = 'boolean'\n                } else if ((/null/).test(match)) {\n                    cls = 'null'\n                }\n                return `<span class=\"${cls}\">${match}</span>`\n            })\n        } catch (e) {\n            json = `Syntax Highlight ERROR: ${e.message}`\n        }\n    }\n    return json\n}\n\n/** msg._ui handling functions */\nconst _ui = new Ui(window, log, syntaxHighlight)\n\n//#endregion --- Module-level utility functions --- //\n\n/** Define and export the Uib class - note that an instance of the class is also exported in the wrap-up\n * @typicalname uibuilder\n */\nexport const Uib = class Uib {\n\n    //#region --- Static variables ---\n    static _meta = {\n        version: version,\n        type: 'module',\n        displayName: 'uibuilder',\n    }\n    //#endregion ---- ---- ---- ----\n\n    //#region private class vars\n\n    // How many times has the loaded instance connected to Socket.IO (detect if not a new load?)\n    connectedNum = 0\n    // event listener callbacks by property name\n    // #events = {}\n    // Socket.IO channel names\n    _ioChannels = { control: 'uiBuilderControl', client: 'uiBuilderClient', server: 'uiBuilder' }\n    /** setInterval holder for pings @type {function|undefined} */\n    #pingInterval\n    // onChange event callbacks\n    #propChangeCallbacks = {}\n    // onTopic event callbacks\n    #msgRecvdByTopicCallbacks = {}\n    // Is Vue available?\n    isVue = false\n    // What version? Set in startup if Vue is loaded. Won't always work\n    vueVersion = undefined\n    /** setInterval id holder for Socket.IO checkConnect\n     * @type {number|null}\n     */\n    #timerid = null\n    // Holds the reference ID for the internal msg change event handler so that it can be cancelled\n    #MsgHandler\n    // Placeholder for io.socket - can't make a # var until # fns allowed in all browsers\n    _socket\n    // Placeholder for an observer that watches the whole DOM for changes - can't make a # var until # fns allowed in all browsers\n    _htmlObserver\n    // Has showMsg been turned on?\n    #isShowMsg = false\n    // Has showStatus been turned on?\n    #isShowStatus = false\n    // If true, URL hash changes send msg back to node-red. Controlled by watchUrlHash()\n    #sendUrlHash = false\n    // Externally accessible command functions (NB: Case must match) - remember to update _uibCommand for new commands\n    #extCommands = [\n        'elementExists', 'get', 'getManagedVarList', 'getWatchedVars', 'htmlSend', 'include',\n        'navigate', 'scrollTo', 'set', 'showMsg', 'showStatus', 'uiGet', 'uiWatch', 'watchUrlHash',\n    ]\n\n    /** @type {{[key: string]: string}} Managed uibuilder variables */\n    #managedVars = {}\n\n    // What status variables to show via showStatus()\n    #showStatus = {\n        online: { 'var': 'online', 'label': 'Online?', 'description': 'Is the browser online?', },\n        ioConnected: { 'var': 'ioConnected', 'label': 'Socket.IO connected?', 'description': 'Is Socket.IO connected?', },\n        connectedNum: { 'var': 'connectedNum', 'label': '# reconnections', 'description': 'How many times has Socket.IO had to reconnect since last page load?', },\n\n        clientId: { 'var': 'clientId', 'label': 'Client ID', 'description': 'Static client unique id set in Node-RED. Only changes when browser is restarted.', },\n        tabId: { 'var': 'tabId', 'label': 'Browser tab ID', 'description': 'Static unique id for the browser\\'s current tab', },\n        cookies: { 'var': 'cookies', 'label': 'Cookies', 'description': 'Cookies set in Node-RED', },\n        httpNodeRoot: { 'var': 'httpNodeRoot', 'label': 'httpNodeRoot', 'description': 'From Node-RED\\' settings.js, affects URL\\'s. May be wrong for pages in sub-folders', },\n        pageName: { 'var': 'pageName', 'label': 'Page name', 'description': 'Actual name of this page', },\n\n        ioNamespace: { 'var': 'ioNamespace', 'label': 'SIO namespace', 'description': 'Socket.IO namespace - unique to each uibuilder node instance', },\n        // ioPath: { 'var': 'ioPath', 'label': 'SIO path', 'description': '', }, // no longer needed in the modern client\n        socketError: { 'var': 'socketError', 'label': 'Socket error', 'description': 'If the Socket.IO connection has failed, says why', },\n\n        msgsSent: { 'var': 'msgsSent', 'label': '# msgs sent', 'description': 'How many standard messages have been sent to Node-RED?', },\n        msgsReceived: { 'var': 'msgsReceived', 'label': '# msgs received', 'description': 'How many standard messages have been received from Node-RED?', },\n        msgsSentCtrl: { 'var': 'msgsSentCtrl', 'label': '# control msgs sent', 'description': 'How many control messages have been sent to Node-RED?', },\n        msgsCtrlReceived: { 'var': 'msgsCtrlReceived', 'label': '# control msgs received', 'description': 'How many control messages have been received from Node-RED?', },\n        originator: { 'var': 'originator', 'label': 'Node Originator', 'description': 'If the last msg from Node-RED was from a `uib-sender` node, this will be its node id so that messasges can be returned to it', },\n        topic: { 'var': 'topic', 'label': 'Default topic', 'description': 'Optional default topic to be included in outgoing standard messages', },\n\n        started: { 'var': 'started', 'label': 'Has uibuilder client started?', 'description': 'Whether `uibuilder.start()` ran successfully. This should self-run and should not need to be run manually', },\n        version: { 'var': 'version', 'label': 'uibuilder client version', 'description': 'The version of the loaded uibuilder client library', },\n        serverTimeOffset: { 'var': 'serverTimeOffset', 'label': 'Server time offset (Hrs)', 'description': 'The number of hours difference between the Node-red server and the client', },\n    }\n\n    // Track ui observers (see uiWatch)\n    #uiObservers = {}\n\n    //#endregion\n\n    //#region public class vars\n\n    // TODO Move to proper getters\n    //#region ---- Externally read-only (via .get method) ---- //\n    // version - moved to _meta\n    /** Client ID set by uibuilder on connect */\n    clientId = ''\n    /** The collection of cookies provided by uibuilder */\n    cookies = {}\n    /** Copy of last control msg object received from sever */\n    ctrlMsg = {}\n    /** Is Socket.IO client connected to the server? */\n    ioConnected = false\n    // Is the browser tab containing this page visible or not?\n    isVisible = false\n    // Remember the last page (re)load/navigation type: navigate, reload, back_forward, prerender\n    lastNavType = ''\n    /** Last std msg received from Node-RED */\n    msg = {}\n    /** number of messages sent to server since page load */\n    msgsSent = 0\n    /** number of messages received from server since page load */\n    msgsReceived = 0\n    /** number of control messages sent to server since page load */\n    msgsSentCtrl = 0\n    /** number of control messages received from server since page load */\n    msgsCtrlReceived = 0\n    /** Is the client online or offline? */\n    online = navigator.onLine\n    /** last control msg object sent via uibuilder.send() @since v2.0.0-dev3 */\n    sentCtrlMsg = {}\n    /** last std msg object sent via uibuilder.send() */\n    sentMsg = {}\n    /** placeholder to track time offset from server, see fn socket.on(ioChannels.server ...) */\n    serverTimeOffset = null\n    /** placeholder for a socket error message */\n    socketError = null\n    // tab identifier from session storage\n    tabId = ''\n    // Actual name of current page (set in constructor)\n    pageName = null\n    // Is the DOMPurify library loaded? Updated in start()\n    purify = false\n    // Is the Markdown-IT library loaded? Updated in start()\n    markdown = false\n    // Current URL hash. Initial set is done from start->watchHashChanges via a set to make it watched\n    urlHash = location.hash\n    //#endregion ---- ---- ---- ---- //\n\n    // TODO Move to proper getters/setters\n    //#region ---- Externally Writable (via .set method, read via .get method) ---- //\n    /** Default originator node id - empty string by default\n     * @type {string}\n     */\n    originator = ''\n    /** Default topic - used by send if set and no topic provided\n     * @type {(string|undefined)}\n     */\n    topic = undefined\n    //#endregion ---- ---- ---- ---- //\n\n    //#region ---- These are unlikely to be needed externally: ----\n    autoSendReady = true\n    httpNodeRoot = '' // Node-RED setting (via cookie)\n    ioNamespace = ''\n    ioPath = ''\n    retryFactor = 1.5       // starting delay factor for subsequent reconnect attempts\n    retryMs = 2000          // starting retry ms period for manual socket reconnections workaround\n    storePrefix = 'uib_'    // Prefix for all uib-related localStorage\n    started = false\n    // NOTE: These can only change when a client (re)connects\n    socketOptions = {\n        path: this.ioPath,\n        transports: ['polling', 'websocket'],\n        // Using callback so that they are updated automatically on (re)connect\n        // Only put things in here that will be valid for a websocket connected session\n        auth: (cb) => {\n            cb({ // eslint-disable-line n/no-callback-literal\n                clientVersion: version,\n                clientId: this.clientId,\n                pathName: window.location.pathname,\n                urlParams: Object.fromEntries(new URLSearchParams(location.search)),\n                pageName: this.pageName,\n                tabId: this.tabId,\n                lastNavType: this.lastNavType,\n                connectedNum: ++this.connectedNum,\n                // Used to calculate the diff between the server and client connection timestamps - reported if >1 minute\n                browserConnectTimestamp: (new Date()).toISOString(),\n            })\n        },\n        transportOptions: {\n            // Can only set headers when polling\n            polling: {\n                extraHeaders: {\n                    'x-clientid': `${Uib._meta.displayName}; ${Uib._meta.type}; ${Uib._meta.version}; ${this.clientId}`,\n                }\n            },\n        },\n    }\n    //#endregion -- not external --\n\n    //#endregion --- End of variables ---\n\n    //#region ------- Getters and Setters ------- //\n\n    // Change logging level dynamically (affects both console. and print.)\n    set logLevel(level) { logLevel = level; console.log('%c\u2757 info%c [logLevel]', `${LOG_STYLES.level} ${LOG_STYLES.info.css}`, `${LOG_STYLES.head} ${LOG_STYLES.info.txtCss}`, `Set to ${level} (${LOG_STYLES.names[level]})`) /* changeLogLevel(level)*/ }\n    get logLevel() { return logLevel }\n\n    get meta() { return Uib._meta }\n\n    /** Function to set uibuilder properties to a new value - works on any property except _* or #*\n     * Also triggers any event listeners.\n     * Example: this.set('msg', {topic:'uibuilder', payload:42});\n     * @param {string} prop Any uibuilder property who's name does not start with a _ or #\n     * @param {*} val The set value of the property or a string declaring that a protected property cannot be changed\n     * @param {boolean} [store] If true, the variable is also saved to the browser localStorage if possible\n     * @param {boolean} [autoload] If true & store is true, on load, uib will try to restore the value from the store automatically\n     * @returns {*} Input value\n     */\n    set(prop, val, store = false, autoload = false) {\n        // Check for excluded properties - we don't want people to set these\n        // if (this.#excludedSet.indexOf(prop) !== -1) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:set', `Cannot use set() on protected property \"${prop}\"`)()\n            return `Cannot use set() on protected property \"${prop}\"`\n        }\n\n        // We must add the var to the uibuilder object\n        this[prop] = val\n\n        // Keep track of all managed variables\n        this.#managedVars[prop] = prop\n\n        // If requested, save to store\n        if (store === true) this.setStore(prop, val, autoload)\n\n        log('trace', 'Uib:set', `prop set - prop: ${prop}, val: `, val, ` store: ${store}, autoload: ${autoload}`)()\n\n        // Trigger this prop's event callbacks (listeners which are set by this.onChange)\n        // this.emit(prop, val)\n\n        // trigger an event on the prop name, pass both the name and value to the event details\n        this._dispatchCustomEvent('uibuilder:propertyChanged', { 'prop': prop, 'value': val, 'store': store, 'autoload': autoload })\n\n        return val\n    }\n\n    /** Function to get the value of a uibuilder property\n     * Example: uibuilder.get('msg')\n     * @param {string} prop The name of the property to get as long as it does not start with a _ or #\n     * @returns {*|undefined} The current value of the property\n     */\n    get(prop) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:get', `Cannot use get() on protected property \"${prop}\"`)()\n            return\n        }\n        if (prop === 'version') return Uib._meta.version\n        if (prop === 'msgsCtrl') return this.msgsCtrlReceived\n        if (prop === 'reconnections') return this.connectedNum\n        if (this[prop] === undefined) {\n            log('warn', 'Uib:get', `get() - property \"${prop}\" is undefined`)()\n        }\n        return this[prop]\n    }\n\n    /** Write to localStorage if possible. console error output if can't write\n     * Also uses this.storePrefix\n     * @example\n     *   uibuilder.setStore('fred', 42)\n     *   console.log(uibuilder.getStore('fred'))\n     * @param {string} id localStorage var name to be used (prefixed with 'uib_')\n     * @param {*} value value to write to localstore\n     * @param {boolean} [autoload] If true, on load, uib will try to restore the value from the store\n     * @returns {boolean} True if succeeded else false\n     */\n    setStore(id, value, autoload = false) {\n        let autoVars = {}\n        if (autoload === true) {\n            try {\n                autoVars = this.getStore('_uibAutoloadVars') || {}\n            } catch (e) {}\n        }\n        if (typeof value === 'object') {\n            try {\n                value = JSON.stringify(value)\n            } catch (e) {\n                log('error', 'Uib:setStore', 'Cannot stringify object, not storing. ', e)()\n                return false\n            }\n        }\n        try {\n            localStorage.setItem(this.storePrefix + id, value)\n            if (autoload) {\n                autoVars[id] = id\n                try {\n                    localStorage.setItem(this.storePrefix + '_uibAutoloadVars', JSON.stringify(autoVars))\n                } catch (e) {\n                    log('error', 'Uib:setStore', 'Cannot save autoload list. ', e)()\n                }\n            }\n            this._dispatchCustomEvent('uibuilder:propertyStored', { 'prop': id, 'value': value, 'autoload': autoload })\n            return true\n        } catch (e) {\n            log('error', 'Uib:setStore', 'Cannot write to localStorage. ', e)()\n            return false\n        }\n    } // --- end of setStore --- //\n\n    /** Attempt to get and re-hydrate a key value from localStorage\n     * Note that all uib storage is automatically prefixed using this.storePrefix\n     * @param {*} id The key of the value to attempt to retrieve\n     * @returns {*|null|undefined} The re-hydrated value of the key or null if key not found, undefined on error\n     */\n    getStore(id) {\n        try {\n            // @ts-ignore\n            return JSON.parse(localStorage.getItem(this.storePrefix + id))\n        } catch (e) { }\n        try {\n            return localStorage.getItem(this.storePrefix + id)\n        } catch (e) {\n            return undefined\n        }\n    }\n\n    /** Remove a given id from the uib keys in localStorage\n     * @param {*} id The key to remove\n     */\n    removeStore(id) {\n        try {\n            localStorage.removeItem(this.storePrefix + id)\n        } catch (e) { }\n    }\n\n    /** Returns a list of uibuilder properties (variables) that can be watched with onChange\n     * @returns {{[key: string]: string}} List of uibuilder managed variables\n     */\n    getManagedVarList() {\n        return this.#managedVars\n    }\n\n    getWatchedVars() {\n        return Object.keys(this.#propChangeCallbacks)\n    }\n\n    //#endregion ------- -------- ------- //\n\n    //#region ------- Our own event handling system ---------- //\n\n    // TODO Add option to send event details back to Node-RED as uib ctrl msg\n    /** Standard fn to create a custom event with details & dispatch it\n     * @param {string} title The event name\n     * @param {*} details Any details to pass to event output\n     */\n    _dispatchCustomEvent(title, details) {\n        const event = new CustomEvent(title, { detail: details })\n        document.dispatchEvent(event)\n    }\n\n    // See the this.#propChangeCallbacks & msgRecvdByTopicCallbacks private vars\n\n    /** Register on-change event listeners for uibuilder tracked properties\n     * Make it possible to register a function that will be run when the property changes.\n     * Note that you can create listeners for non-existant properties\n     * @example: uibuilder.onChange('msg', (msg) => { console.log('uibuilder.msg changed! It is now: ', msg) })\n     *\n     * @param {string} prop The property of uibuilder that we want to monitor\n     * @param {Function} callback The function that will run when the property changes, parameter is the new value of the property after change\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelChange if you need to remove a listener\n     */\n    onChange(prop, callback) {\n        // Note: Property does not have to exist yet\n\n        // console.debug(`[Uib:onchange] pushing new callback (event listener) for property: ${prop}`)\n\n        // Create a new array or add to the array of callback functions for the property in the events object\n        // if (this.#events[prop]) {\n        //     this.#events[prop].push(callback)\n        // } else {\n        //     this.#events[prop] = [callback]\n        // }\n\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#propChangeCallbacks[prop]) this.#propChangeCallbacks[prop] = { _nextRef: 1 }\n        else this.#propChangeCallbacks[prop]._nextRef++\n\n        const nextCbRef = this.#propChangeCallbacks[prop]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const propChangeCallback = this.#propChangeCallbacks[prop][nextCbRef] = function propChangeCallback(e) {\n            // If the prop name matches the 1st arg in the onChange fn:\n            if (prop === e.detail.prop) {\n                const value = e.detail.value\n                // console.warn('[Uib:onChange:evt] uibuilder:propertyChanged. ', e.detail)\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(value, value)\n            }\n        }\n\n        document.addEventListener('uibuilder:propertyChanged', propChangeCallback)\n\n        return nextCbRef\n    } // ---- End of onChange() ---- //\n\n    cancelChange(prop, cbRef) {\n        document.removeEventListener('uibuilder:propertyChanged', this.#propChangeCallbacks[prop][cbRef])\n        delete this.#propChangeCallbacks[prop][cbRef]\n        // this.#propChangeCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Register a change callback for a specific msg.topic\n     * Similar to onChange but more convenient if needing to differentiate by msg.topic.\n     * @example: let otRef = uibuilder.onTopic('mytopic', function(){ console.log('Received a msg with msg.topic=`mytopic`. msg: ', this) })\n     * To cancel a change listener: uibuilder.cancelTopic('mytopic', otRef)\n     *\n     * @param {string} topic The msg.topic we want to listen for\n     * @param {Function} callback The function that will run when an appropriate msg is received. `this` inside the callback as well as the cb's single argument is the received msg.\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelTopic if you need to remove a listener\n     */\n    onTopic(topic, callback) {\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#msgRecvdByTopicCallbacks[topic]) this.#msgRecvdByTopicCallbacks[topic] = { _nextRef: 1 }\n        else this.#msgRecvdByTopicCallbacks[topic]._nextRef++\n\n        const nextCbRef = this.#msgRecvdByTopicCallbacks[topic]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const msgRecvdEvtCallback = this.#msgRecvdByTopicCallbacks[topic][nextCbRef] = function msgRecvdEvtCallback(e) {\n            const msg = e.detail\n            // console.log('[Uib:onTopic:evt] uibuilder:stdMsgReceived where topic matches. ', e.detail)\n            if (msg.topic === topic) {\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(msg, msg)\n            }\n        }\n\n        document.addEventListener('uibuilder:stdMsgReceived', msgRecvdEvtCallback)\n\n        return nextCbRef\n    }\n\n    cancelTopic(topic, cbRef) {\n        document.removeEventListener('uibuilder:stdMsgReceived', this.#msgRecvdByTopicCallbacks[topic][cbRef])\n        delete this.#msgRecvdByTopicCallbacks[topic][cbRef]\n        // this.#msgRecvdCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Trigger event listener for a given property\n     * Called when uibuilder.set is used\n     *\n     * @param {*} prop The property for which to run the callback functions\n     * arguments: Additional arguments contain the value to pass to the event callback (e.g. newValue)\n     */\n    // emit(prop) {\n    //     var evt = this.#events[prop]\n    //     if (!evt) {\n    //         return\n    //     }\n    //     var args = Array.prototype.slice.call(arguments, 1)\n    //     for (var i = 0; i < evt.length; i++) {\n    //         evt[i].apply(this, args)\n    //     }\n    //     log('trace', 'Uib:emit', `${evt.length} listeners run for prop ${prop} `)()\n    // }\n\n    /** Forcibly removes all event listeners from the events array\n     * Use if you need to re-initialise the environment\n     */\n    // clearEventListeners() {\n    //     this.#events = []\n    // } // ---- End of clearEventListeners() ---- //\n\n    /** Clear a single property event listeners\n     * @param {string} prop The property of uibuilder for which we want to clear the event listener\n     */\n    // clearListener(prop) {\n    //     if (this.#events[prop]) delete this.#events[prop]\n    // }\n\n    //#endregion ---------- End of event handling system ---------- //\n\n    //#region ------- General Utility Functions -------- //\n\n    /** Check supplied msg from server for a timestamp - if received, work out & store difference to browser time\n     * @param {object} receivedMsg A message object recieved from Node-RED\n     * @returns {void} Updates self.serverTimeOffset if different to previous value\n     */\n    _checkTimestamp(receivedMsg) {\n        if (Object.prototype.hasOwnProperty.call(receivedMsg, 'serverTimestamp')) {\n            const serverTimestamp = new Date(receivedMsg.serverTimestamp)\n            // @ts-ignore\n            const offset = Math.round(((new Date()) - serverTimestamp) / 3600000) // in ms /3.6m to get hours\n            if (offset !== this.serverTimeOffset) {\n                log('trace', `Uib:checkTimestamp:${this._ioChannels.server} (server)`, `Offset changed to: ${offset} from: ${this.serverTimeOffset}`)()\n                this.set('serverTimeOffset', offset)\n            }\n        }\n    }\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {*} Selected HTML element or null\n     */\n    $(cssSelector) {\n        /** @type {*} Some kind of HTML element */\n        let el = document.querySelector(cssSelector)\n\n        if (!el) {\n            log(1, 'Uib:$', `No element found for CSS selector ${cssSelector}`)()\n            return null\n        }\n\n        if ( el.nodeName === 'TEMPLATE' ) {\n            el = el.content.firstElementChild\n            if (!el) {\n                log(0, 'Uib:$', `Template selected for CSS selector ${cssSelector} but it is empty`)()\n                return null\n            }\n        }\n\n        return el\n    }\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {*} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {Array} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$(cssSelector) {\n        return Array.from(document.querySelectorAll(cssSelector))\n    }\n\n    /** Set the default originator. Set to '' to ignore. Used with uib-sender.\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    setOriginator(originator = '') {\n        this.set('originator', originator)\n    } // ---- End of setOriginator ---- //\n\n    /** HTTP Ping/Keep-alive - makes a call back to uibuilder's ExpressJS server and receives a 204 response\n     * Can be used to keep sessions alive.\n     * @example\n     *   uibuilder.setPing(2000) // repeat every 2 sec. Re-issue with ping(0) to turn off repeat.\n     *   uibuilder.onChange('ping', function(data) {\n     *      console.log('pinger', data)\n     *   })\n     * @param {number} ms Repeat interval in ms\n     */\n    setPing(ms = 0) {\n        const oReq = new XMLHttpRequest()\n        oReq.addEventListener('load', () => {\n            const headers = (oReq.getAllResponseHeaders()).split('\\r\\n')\n            const elapsedTime = Number(new Date()) - Number((oReq.responseURL.split('='))[1])\n            this.set('ping', {\n                success: !!((oReq.status === 201) || (oReq.status === 204)), // true if one of the listed codes else false\n                status: oReq.status,\n                headers: headers,\n                url: oReq.responseURL,\n                elapsedTime: elapsedTime,\n            })\n        })\n\n        if (this.#pingInterval) {\n            clearInterval(this.#pingInterval)\n            this.#pingInterval = undefined\n        }\n\n        oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n        oReq.send()\n\n        if (ms > 0) {\n            this.#pingInterval = setInterval(() => {\n                oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n                oReq.send()\n            }, ms)\n        }\n    } // ---- End of ping ---- //\n\n    log() {\n        log(...arguments)()\n    }\n\n    /** Convert JSON to Syntax Highlighted HTML\n     * @param {object} json A JSON/JavaScript Object\n     * @returns {html} Object reformatted as highlighted HTML\n     */\n    syntaxHighlight(json) {\n        return syntaxHighlight(json)\n    } // --- End of syntaxHighlight --- //\n\n    /** Copies a uibuilder variable to the browser clipboard\n     * @param {string} varToCopy The name of the uibuilder variable to copy to the clipboard\n     */\n    copyToClipboard(varToCopy) {\n        let data = ''\n        try {\n            console.log(this.get(varToCopy), JSON.stringify(this.get(varToCopy)))\n            data = JSON.stringify(this.get(varToCopy))\n        } catch (e) {\n            log('error', 'copyToClipboard', `Could not copy \"${varToCopy}\" to clipboard.`, e.message)()\n        }\n        navigator.clipboard.writeText(data)\n    } // --- End of copyToClipboard --- //\n\n    /** DEPRECATED FOR NOW - wasn't working properly.\n     * Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.\n     * Requires IntersectionObserver (available to all mainstream browsers from early 2019)\n     * Automatically sends a msg back to Node-RED.\n     * Requires the element to already exist.\n     */\n    elementIsVisible() {\n        const info = 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'\n        log('error', 'uib:elementIsVisible', info)()\n        this.send({payload: 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'})\n        return false\n    } // --- End of elementIsVisible --- //\n\n    /** Does the chosen CSS Selector currently exist?\n     * Automatically sends a msg back to Node-RED unless turned off.\n     * @param {string} cssSelector Required. CSS Selector to examine for visibility\n     * @param {boolean} [msg] Optional, default=true. If true also sends a message back to Node-RED\n     * @returns {boolean} True if the element exists\n     */\n    elementExists(cssSelector, msg = true) {\n        const el = document.querySelector(cssSelector)\n\n        let exists = false\n        if (el !== null) exists = true\n\n        if (msg === true) {\n            this.send({\n                payload: exists,\n                info: `Element \"${cssSelector}\" ${exists ? 'exists' : 'does not exist'}`\n            })\n        }\n\n        return exists\n    } // --- End of elementExists --- //\n\n    /** Only keep the URL Hash & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return '#' + url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Set up an event listener to watch for hash changes\n     * and set the watchable urlHash variable\n     */\n    _watchHashChanges() {\n        this.set('urlHash', location.hash)\n        window.addEventListener('hashchange', (event) => {\n            this.set('urlHash', location.hash)\n            if (this.#sendUrlHash === true) {\n                this.send({ topic: 'hashChange', payload: location.hash, newHash: this.keepHashFromUrl(event.newURL), oldHash: this.keepHashFromUrl(event.oldURL) })\n            }\n        })\n    }\n\n    /** Returns true/false or a default value for truthy/falsy and other values\n     * @param {string|number|boolean|*} val The value to test\n     * @param {any} deflt Default value to use if the value is not truthy/falsy\n     * @returns {boolean|any} The truth! Or the default\n     */\n    truthy(val, deflt) {\n        let ret\n        if (['on', 'On', 'ON', 'true', 'True', 'TRUE', '1', true, 1].includes(val)) ret = true\n        else if (['off', 'Off', 'OFF', 'false', 'False', 'FALSE', '0', false, 0].includes(val)) ret = false\n        else ret = deflt\n        return ret\n    }\n\n    /** Turn on/off/toggle sending URL hash changes back to Node-RED\n     * @param {string|number|boolean|undefined} [toggle] Optional on/off/etc\n     * @returns {boolean} True if we will send a msg to Node-RED on a hash change\n     */\n    watchUrlHash(toggle) {\n        this.#sendUrlHash = this.truthy(toggle, this.#sendUrlHash !== true)\n        return this.#sendUrlHash\n    }\n\n    /** Navigate to a new page or a new route (hash)\n     * @param {string} url URL to navigate to. Can be absolute or relative (to current page) or just a hash for a route change\n     * @returns {Location} The new window.location string\n     */\n    navigate(url) {\n        if (url) window.location.href = url\n        return window.location\n    }\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- UI handlers --------- //\n\n    //#region -- Direct to _ui --\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        _ui.ui(json)\n    }\n\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        _ui.replaceSlot(el, component)\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        _ui.replaceSlotMarkdown(el, component)\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        return _ui.convertMarkdown(mdText)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        return _ui.sanitiseHTML(html)\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        _ui.loadScriptSrc(url)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        _ui.loadStyleSrc(url)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        _ui.loadScriptTxt(textFn)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        _ui.loadStyleTxt(textFn)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) {\n        _ui.showDialog(type, ui, msg)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        _ui.loadui(url)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        return _ui.uiGet(cssSelector, propName)\n    }\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     */\n    async include(url, uiOptions) {\n        _ui.include(url, uiOptions)\n    }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} component Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, component) {\n        _ui.uiEnhanceElement(el, component)\n    }\n\n    //#endregion -- direct to _ui --\n\n    /** * Show/hide a display card on the end of the visible HTML that will dynamically display the last incoming msg from Node-RED\n     * The card has the id `uib_last_msg`. Updates are done from a listener set up in the start function.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showMsg(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowMsg\n        this.#isShowMsg = showHide\n        let slot = 'Waiting for a message from Node-RED'\n\n        if (this.msg && Object.keys(this.msg).length > 0) {\n            slot = this.syntaxHighlight(this.msg)\n        }\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_last_msg_wrap',\n                ],\n            })\n        } else {\n            _ui._uiReplace({\n                components: [\n                    {\n                        type: 'div',\n                        id: 'uib_last_msg_wrap',\n                        parent: parent,\n                        attributes: {\n                            title: 'Last message from Node-RED',\n                        },\n                        components: [\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.copyToClipboard(\"msg\")',\n                                    class: 'compact',\n                                    style: 'right:3em;',\n                                },\n                                slot: '\uD83D\uDCCB',\n                            },\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.showMsg()',\n                                    class: 'compact',\n                                    style: 'right:.5em;',\n                                },\n                                slot: '\u26D4',\n                            },\n                            {\n                                type: 'pre',\n                                id: 'uib_last_msg',\n                                // parent: 'uib_last_msg_wrap',\n                                attributes: {\n                                    class: 'syntax-highlight',\n                                },\n                                slot: slot,\n                            },\n                        ],\n                    },\n                ],\n            })\n        }\n\n        return showHide\n    }\n\n    /** Show a browser notification if possible.\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * @example uibuilder.notify( 'My simple message to the user' )\n     * @example uibuilder.notify( {topic: 'My Title', payload: 'My simple message to the user'} )\n     * @example uibuilder.notify( {title: 'My Title', body: 'My simple message to the user'} )\n     * @example // If config.return = true, a promise is returned.\n     * // The resolved promise is only returned if the notification is clicked by the user.\n     * // Can be used to send the response back to Node-RED\n     * uibuilder.notify(notifyConfig).then( res => uibuilder.eventSend(res) )\n     * @ref https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config data or simple message string\n     * @returns {Promise<Event>|null} A promise that resolves to the click event or null\n     */\n    notify(config) {\n        if (config.return) return _ui.notification(config)\n\n        _ui.notification(config)\n            .then( res => { // eslint-disable-line promise/always-return\n                log('info', 'Uib:notification', 'Notification completed event', res)()\n                // if (config.return) return res\n            })\n            .catch( err => {\n                log('error', 'Uib:notification', 'Notification error event', err)()\n            })\n        return null\n    }\n\n    /** Scroll the page\n     * https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollIntoView\n     * @param {string} [cssSelector] Optional. If not set, scrolls to top of page.\n     * @param {{block:(string|undefined),inline:(string|undefined),behavior:(string|undefined)}} [opts] Optional. DOM scrollIntoView options\n     * @returns {boolean} True if element was found, false otherwise\n     */\n    scrollTo(cssSelector, opts) {\n        // @ts-ignore\n        if (!opts) opts = {}\n        if (!cssSelector || cssSelector === 'top'  || cssSelector === 'start') cssSelector = 'body'\n        else if (cssSelector === 'bottom' || cssSelector === 'end') {\n            cssSelector = 'body'\n            opts.block = 'end'\n        }\n        const el = this.$(cssSelector)\n        if (el) {\n            el.scrollIntoView(opts)\n            return true\n        }\n        return false\n    }\n\n    /** Show/hide a display card on the end of the visible HTML that will dynamically display the current status of the uibuilder client\n     * The card has the id `uib_status`.\n     * The display is updated by an event listener created in the class constructor.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showStatus(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowStatus\n        this.#isShowStatus = showHide\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_status',\n                ],\n            })\n            return showHide\n        }\n\n        const root = {\n            components: [\n                {\n                    type: 'div',\n                    id: 'uib_status',\n                    parent: parent,\n                    attributes: {\n                        title: 'Current status of the uibuilder client',\n                        class: 'text-smaller',\n                    },\n                    components: [\n                        {\n                            'type': 'table',\n                            'components': [\n                                {\n                                    'type': 'tbody',\n                                    'components': []\n                                }\n                            ]\n                        }\n                    ]\n                }\n            ]\n        }\n        const details = root.components[0].components[0].components[0].components\n\n        Object.values(this.#showStatus).forEach( entry => {\n            details.push({\n                'type': 'tr',\n                'attributes': {\n                    title: entry.description,\n                },\n                'components': [\n                    {\n                        'type': 'th',\n                        'slot': entry.label,\n                    },\n                    {\n                        'type': 'td',\n                        'attributes': {\n                            'data-varType': entry.var,\n                        },\n                        'slot': entry.var === 'version' ? Uib._meta.version : JSON.stringify(this[entry.var]),\n                    }\n                ],\n            })\n        })\n\n        _ui._uiReplace(root)\n\n        return showHide\n    }\n\n    /** Use the Mutation Observer browser API to watch for changes to a single element on the page.\n     * OMG! It is sooo hard to turn the data into something that successfully serialises so it can be sent back to Node-RED!\n     * NB: Each cssSelector creates a unique watcher. Sending the same selector overwrites the previous one.\n     * @param {string} cssSelector A CSS Selector that selects the element to watch for changes\n     * @param {boolean|\"toggle\"} [startStop] true=start watching the DOM, false=stop. Default='toggle'\n     * @param {boolean} [send] true=Send changes to Node-RED, false=Don't send. Default=true\n     * @param {boolean} [showLog] true=Output changes to log, false=stop. Default=true. Log level is 2 (Info)\n     * @returns {boolean} True if the watch is on, false otherwise\n     */\n    uiWatch(cssSelector, startStop = 'toggle', send = true, showLog = true) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.querySelector(cssSelector)\n        if (!targetNode) {\n            log('warn', 'uibuilder.module.js:uiWatch', `CSS Selector '${cssSelector}' not found.`)()\n            return false\n        }\n\n        if (startStop === 'toggle' || startStop === undefined || startStop === null) {\n            if (this.#uiObservers[cssSelector]) startStop = false\n            else startStop = true\n        }\n\n        // Need a ref to the Uib this\n        const that = this\n\n        if (startStop === true) {\n            // Create an observer instance\n            this.#uiObservers[cssSelector] = new MutationObserver( function( mutationList /* , observer */ ) {\n                const out = []\n\n                mutationList.forEach( mu => {\n                    // console.log({ mu })\n                    const oMu = {\n                        type: mu.type,\n                        oldValue: mu.oldValue !== null ? mu.oldValue : undefined,\n                    }\n\n                    if (mu.addedNodes.length > 0) {\n                        oMu.addedNodes = []\n                        mu.addedNodes.forEach( (an, i) => {\n                            oMu.addedNodes.push(_ui.nodeGet(mu.addedNodes[i]))\n                        })\n                    }\n\n                    if (mu.removedNodes.length > 0) {\n                        oMu.removedNodes = []\n                        mu.removedNodes.forEach( (an, i) => {\n                            oMu.removedNodes.push(_ui.nodeGet(mu.removedNodes[i]))\n                        })\n                    }\n\n                    if ( mu.type === 'attributes' ) {\n                        oMu.attributeName = mu.attributeName\n                        // @ts-ignore\n                        oMu.newValue = mu.target.attributes[mu.attributeName].value\n                    }\n\n                    out.push(oMu)\n                })\n\n                // Custom event\n                that._dispatchCustomEvent('uibuilder:domChange', out)\n                // Send a msg back to node-red\n                if (send === true) {\n                    that.send({\n                        _ui: {\n                            cssSelector: cssSelector,\n                            uiChanges: out\n                        },\n                        topic: that.topic || `DOM Changes for '${cssSelector}'`,\n                    })\n                }\n                // Log to info\n                if (showLog === true) {\n                    log('info', 'uibuilder.module.js:uiWatch', `DOM Changes for '${cssSelector}'`, { uiChanges: out }, { mutationList })()\n                }\n            } )\n\n            // Start observing the target node for configured mutations\n            this.#uiObservers[cssSelector].observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:uiWatch', `Started Watching DOM changes for '${cssSelector}'`)()\n        } else {\n            this.#uiObservers[cssSelector].disconnect()\n            delete this.#uiObservers[cssSelector]\n            log('trace', 'uibuilder.module.js:uiWatch', `Stopped Watching DOM changes for '${cssSelector}'`)()\n        }\n\n        return startStop\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- HTML cache and DOM watch --------- //\n\n    /** Clear the saved DOM from localStorage */\n    clearHtmlCache() {\n        this.removeStore('htmlCache')\n        log('trace', 'uibuilder.module.js:clearHtmlCache', 'HTML cache cleared')()\n    }\n\n    /** Restore the complete DOM (the whole web page) from browser localStorage if available */\n    restoreHtmlFromCache() {\n        // Is the html cached? If so, restore it\n        const htmlCache = this.getStore('htmlCache')\n        if (htmlCache) {\n            const targetNode = document.getElementsByTagName('html')[0]\n            // Restore the entire HTML\n            targetNode.innerHTML = htmlCache\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'Restored HTML from cache')()\n        } else {\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'No cache to restore')()\n        }\n    }\n\n    /** Save the current DOM state to browser localStorage.\n     * localStorage is persistent and so can be recovered even after a browser restart.\n     */\n    saveHtmlCache() {\n        // Save the updated entire HTML in localStorage\n        this.setStore('htmlCache', document.documentElement.innerHTML)\n    }\n\n    /** Use the Mutation Observer browser API to watch for and save changes to the HTML\n     * Once the observer is created, it will be reused.\n     * Sending true or undefined will turn on the observer, false turns it off.\n     * saveHtmlCache is called whenever anything changes in the dom. This allows\n     * users to call restoreHtmlFromCache() on page load if desired to completely reload\n     * to the last saved state.\n     * @param {boolean} startStop true=start watching the DOM, false=stop\n     */\n    watchDom(startStop) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.documentElement\n\n        // Need a ref to the Uib this\n        const that = this\n\n        // Create an observer instance\n        if (!this._htmlObserver) {\n            this._htmlObserver = new MutationObserver( function(/* mutationList, observer */) {\n                // We don't need to know the details - so kill off any outstanding mutation records\n                this.takeRecords()\n                // Save the updated entire HTML in localStorage\n                that.saveHtmlCache()\n            } )\n        }\n\n        if (startStop === true || startStop === undefined) {\n            // Start observing the target node for configured mutations\n            this._htmlObserver.observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:watchDom', 'Started Watching and saving DOM changes')()\n        } else {\n            this._htmlObserver.disconnect()\n            log('trace', 'uibuilder.module.js:watchDom', 'Stopped Watching and saving DOM changes')()\n        }\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- Message Handling (To/From Node-RED) -------- //\n\n    /** Internal send fn. Send a standard or control msg back to Node-RED via Socket.IO\n     * NR will generally expect the msg to contain a payload topic\n     * @param {object} msgToSend The msg object to send.\n     * @param {string} [channel=uiBuilderClient] The Socket.IO channel to use, must be in self.ioChannels or it will be ignored\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    _send(msgToSend, channel, originator = '') {\n        if (channel === null || channel === undefined) channel = this._ioChannels.client\n\n        // Make sure msgToSend is an object\n        if (channel === this._ioChannels.client) {\n            msgToSend = makeMeAnObject(msgToSend, 'payload')\n        } else if (channel === this._ioChannels.control) {\n            msgToSend = makeMeAnObject(msgToSend, 'uibuilderCtrl')\n            if (!Object.prototype.hasOwnProperty.call(msgToSend, 'uibuilderCtrl')) {\n                msgToSend.uibuilderCtrl = 'manual send'\n            }\n            // help remember where this came from as ctrl msgs can come from server or client\n            msgToSend.from = 'client'\n        }\n\n        /** since 2020-01-02 Added _socketId which should be the same as the _socketId on the server */\n        msgToSend._socketId = this._socket.id\n\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n\n        // Add the originator metadata if required\n        if (originator === '' && this.originator !== '') originator = this.originator\n        if (originator !== '') Object.assign(msgToSend, { '_uib': { 'originator': originator } })\n\n        // If the msg does not have a topic - see if we want to add one\n        if ( !Object.prototype.hasOwnProperty.call(msgToSend, 'topic') ) {\n            // From the default (`uibuilder.set('topic', 'some topic')`)\n            if (this.topic !== undefined && this.topic !== '') msgToSend.topic = this.topic\n            else {\n                // Did the last inbound msg have a topic?\n                if ( Object.prototype.hasOwnProperty.call(this, 'msg') && Object.prototype.hasOwnProperty.call(this.msg, 'topic') ) {\n                    msgToSend.topic = this.msg.topic\n                }\n            }\n        }\n\n        // If a standard send & _ui property exists, make sure to add _ui.from = 'client'\n        if (msgToSend._ui) msgToSend._ui.from = 'client'\n\n        // Track how many messages have been sent & last msg sent\n        let numMsgs\n        if (channel === this._ioChannels.client) {\n            this.set('sentMsg', msgToSend)\n            numMsgs = this.set('msgsSent', ++this.msgsSent)\n        } else if (channel === this._ioChannels.control) {\n            this.set('sentCtrlMsg', msgToSend)\n            numMsgs = this.set('msgsSentCtrl', ++this.msgsSentCtrl)\n        }\n        log('trace', 'Uib:_send', ` Channel '${channel}'. Sending msg #${numMsgs}`, msgToSend)()\n\n        this._socket.emit(channel, msgToSend)\n    } // --- End of Send Msg Fn --- //\n\n    /** Send a standard message to NR\n     * @example uibuilder.send({payload:'Hello'})\n     * @param {object} msg Message to send\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    send(msg, originator = '') {\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Send a control msg to NR\n     * @param {object} msg Message to send\n     */\n    sendCtrl(msg) {\n        this._send(msg, this._ioChannels.control)\n    }\n\n    /** Easily send a msg back to Node-RED on a DOM event\n     * @example In plain HTML/JavaScript\n     *    `<button id=\"button1\" name=\"button 1\" data-fred=\"jim\"></button>`\n     *    $('#button1').onclick = (evt) => {\n     *      uibuilder.eventSend(evt)\n     *    }\n     * @example\n     * In VueJS: `<b-button id=\"myButton1\" @click=\"doEvent\" data-something=\"hello\"></b-button>`\n     * In VueJS methods: `doEvent: uibuilder.eventSend,`\n     *\n     * All `data-` attributes will be passed back to Node-RED,\n     *    use them instead of arguments in the click function.\n     *    All target._ui custom properties are also passed back to Node-RED.\n     *\n     * @param {MouseEvent|any} domevent DOM Event object\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    eventSend(domevent, originator = '') { // eslint-disable-line sonarjs/cognitive-complexity\n        // @ts-ignore Handle case where vue messes up `this`\n        if ( this.$attrs ) {\n            log('error', 'Uib:eventSend', '`this` has been usurped by VueJS. Make sure that you wrap the call in a function: `doEvent: function (event) { uibuilder.eventSend(event) },`' )()\n            return\n        }\n        if (!domevent && !event) {\n            log('warn', 'Uib:eventSend', 'Neither the domevent nor the hidden event properties are set. You probably called this function directly rather than applying to an on click event.' )()\n            return\n        }\n        // Handle no argument, e.g. <button onClick=\"uibuilder.eventSend()\"> - event is a hidden variable when fn used in addEventListener\n        if (!domevent || !domevent.constructor) domevent = event\n\n        // The argument must be a DOM event\n        if ((!domevent.constructor.name.endsWith('Event')) || (!domevent.currentTarget)) {\n            log('warn', 'Uib:eventSend', `ARGUMENT NOT A DOM EVENT - use data attributes not function arguments to pass data. Arg Type: ${domevent.constructor.name}`, domevent)()\n            return\n        }\n\n        // Prevent default event action\n        domevent.preventDefault()\n\n        // The target element\n        const target = domevent.currentTarget\n\n        // Get target properties - only shows custom props not element default ones\n        const props = {}\n        Object.keys(target).forEach( key => {\n            if (key.startsWith('_')) return // Exclude private\n            props[key] = target[key]\n        })\n\n        // Attempt to get target attributs - can fail for certain target types\n        const ignoreAttribs = ['class', 'id', 'name']\n        let attribs\n        try {\n            attribs = Object.assign({},\n                ...Array.from(target.attributes,\n                    ( { name, value } ) => {\n                        if ( !ignoreAttribs.includes(name) ) {\n                            return ({ [name]: value })\n                        }\n                        return undefined\n                    }\n                )\n            )\n        } catch (e) {}\n\n        // If target embedded in a form, include the form data\n        let form\n        const frmVals = []\n        if ( target.form ) {\n            form = {}\n            form.valid = target.form.checkValidity()\n            Object.values(target.form).forEach( (frmEl, i) => {\n                const id = frmEl.id !== '' ? frmEl.id : (frmEl.name !== '' ? frmEl.name : `${i}-${frmEl.type}`)\n\n                // We must have both an element id (we may have forced one above) AND\n                // the element type MUST be not undefined - to allow for the extra properties added by frameworks such as Svelte\n                if (id !== '' && frmEl.type) {\n                    // Stupid HTML doesn't use value attrib for checkboxes. So override if value is set to default\n                    if ('checked' in frmEl && frmEl.value === 'on') frmEl.value = frmEl.checked.toString()\n\n                    frmVals.push( { key: id, val: frmEl.value } ) // simplified for addition to msg.payload\n\n                    form[id] = {\n                        'id': frmEl.id,\n                        'name': frmEl.name,\n                        'value': frmEl.value,\n                        'valid': frmEl.checkValidity(),\n                        'type': frmEl.type,\n                    }\n\n                    if (form[id].valid === false) {\n                        const v = frmEl.validity\n                        form[id].validity = {\n                            badInput: v.badInput === true ? v.badInput : undefined,\n                            customError: v.customError === true ? v.customError : undefined,\n                            patternMismatch: v.patternMismatch === true ? v.patternMismatch : undefined,\n                            rangeOverflow: v.rangeOverflow === true ? v.rangeOverflow : undefined,\n                            rangeUnderflow: v.rangeUnderflow === true ? v.rangeUnderflow : undefined,\n                            stepMismatch: v.stepMismatch === true ? v.stepMismatch : undefined,\n                            tooLong: v.tooLong === true ? v.tooLong : undefined,\n                            tooShort: v.tooShort === true ? v.tooShort : undefined,\n                            typeMismatch: v.typeMismatch === true ? v.typeMismatch : undefined,\n                            valueMissing: v.valueMissing === true ? v.valueMissing : undefined,\n                        }\n                    }\n\n                    if (frmEl.dataset) form[id].data = frmEl.dataset\n                }\n            })\n        }\n\n        // Check for CSS Classes\n        let classes\n        try {\n            classes = Array.from(target.classList)\n        } catch (e) {}\n\n        // Each `data-xxxx` attribute is added as a property\n        let payload = { ...target.dataset }\n\n        // Handle Notification events\n        let nprops\n        if ( Object.prototype.toString.call(target) === '[object Notification]') {\n            // Fixed payload for convenience\n            payload = `notification-${target.userAction}`\n            // Capture the notification properties\n            nprops = {\n                // userAction: target.userAction, // uib custom prop: click, close or error\n                actions: target.actions,\n                badge: target.badge,\n                body: target.body,\n                data: target.data,\n                dir: target.dir,\n                icon: target.icon,\n                image: target.image,\n                lang: target.lang,\n                renotify: target.renotify,\n                requireInteraction: target.requireInteraction,\n                silent: target.silent,\n                tag: target.tag,\n                timestamp: target.timestamp,\n                title: target.title,\n                vibrate: target.vibrate,\n            }\n        }\n        // console.log(Object.prototype.toString.call(target))\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            // - this may be an empty Object if no data attributes defined\n            payload: payload,\n\n            _ui: {\n                type: 'eventSend',\n                id: target.id !== '' ? target.id : undefined,\n                name: target.name !== '' ? target.name : undefined,\n                slotText: target.textContent ? target.textContent.substring(0, 255) : undefined,\n\n                form: form,\n                props: props,\n                attribs: attribs,\n                classes: classes,\n\n                notification: nprops,\n\n                event: domevent.type,\n                altKey: domevent.altKey,\n                ctrlKey: domevent.ctrlKey,\n                shiftKey: domevent.shiftKey,\n                metaKey: domevent.metaKey,\n\n                pointerType: domevent.pointerType,\n                nodeName: target.nodeName,\n\n                clientId: this.clientId,\n                pageName: this.pageName,\n                tabId: this.tabId,\n            }\n        }\n\n        if (frmVals.length > 0) {\n            frmVals.forEach( entry => {\n                msg.payload[entry.key] = entry.val\n            })\n        }\n\n        if (domevent.type === 'change') {\n            // Checkboxes don't have a value!!\n            msg._ui.newValue = msg.payload.value = 'checked' in target ? target.checked : domevent.target.value\n        }\n\n        log('trace', 'Uib:eventSend', 'Sending msg to Node-RED', msg)()\n        if (target.dataset && target.dataset.length === 0) log('warn', 'Uib:eventSend', 'No payload in msg. data-* attributes should be used.')()\n\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Easily send the entire DOM/HTML msg back to Node-RED\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     * @param {boolean} [send] If true (default) directly send response to Node-RED. Is false when calling from Node-RED as a command.\n     * @returns {string} The HTML as a string\n     */\n    htmlSend(originator = '', send = true) {\n        const out = `<!doctype html>\\n${document.documentElement.outerHTML}`\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            payload: out,\n            length: out.length,\n            topic: this.topic,\n        }\n\n        log('trace', 'Uib:htmlSend', 'Sending full HTML to Node-RED', msg)()\n\n        if (send === true) this._send(msg, this._ioChannels.client, originator)\n        return out\n    }\n\n    /** Process msg._uib.command - Remember to update #extCommands with new allowed commands\n     * @param {object} msg Msg from Node-RED containing a msg._uib object\n     */\n    _uibCommand(msg) {\n        if (!msg._uib || !msg._uib.command) {\n            log('error', 'uibuilder:_uibCommand', 'Invalid command message received', { msg })()\n            msg.payload = msg.error = 'Invalid command message received'\n            this.send(msg)\n            return\n        }\n        const cmd = msg._uib.command\n        // Disallowed command request outputs error and ignores the msg (NB: Case must match)\n        if (!this.#extCommands.includes(cmd.trim())) {\n            log('error', 'Uib:_uibCommand', `Command '${cmd} is not allowed to be called externally`)()\n            return\n        }\n        const prop = msg._uib.prop\n        const value = msg._uib.value\n        const quiet = msg._uib.quiet ?? false\n        let response, info\n\n        // Don't forget to update `#extCommands`, `docs/client-docs/control-from-node-red.md` & `functions.md`\n        switch (cmd) {\n            case 'elementIsVisible': {\n                response = this.elementIsVisible(prop)\n                // info = `Element \"${prop}\" ${response ? 'is visible' : 'is not visible'}`\n                break\n            }\n\n            case 'elementExists': {\n                response = this.elementExists(prop, false)\n                info = `Element \"${prop}\" ${response ? 'exists' : 'does not exist'}`\n                break\n            }\n\n            case 'get': {\n                response = this.get(prop)\n                break\n            }\n\n            case 'getManagedVarList': {\n                if (prop === 'full') response = this.getManagedVarList()\n                else response = Object.values(this.getManagedVarList())\n                break\n            }\n\n            case 'getWatchedVars': {\n                if (prop === 'full') response = this.getWatchedVars()\n                else response = Object.values(this.getWatchedVars())\n                break\n            }\n\n            case 'htmlSend': {\n                response = this.htmlSend('', false)\n                break\n            }\n\n            case 'include': {\n                // include is async\n                response = _ui.include(prop, value)\n                break\n            }\n\n            case 'navigate': {\n                let newUrl\n                if (prop) newUrl = prop\n                else if (value) newUrl = value\n                response = this.navigate(newUrl)\n                break\n            }\n\n            case 'scrollTo': {\n                response = this.scrollTo(prop, value)\n                break\n            }\n\n            case 'set': {\n                let store = false\n                let autoload = false\n                if (msg._uib.options && msg._uib.options.store) {\n                    if (msg._uib.options.store === true) store = true\n                    if (msg._uib.options.autoload === true) autoload = true\n                }\n                response = this.set(prop, value, store, autoload)\n                break\n            }\n\n            case 'showMsg': {\n                response = this.showMsg(value, prop)\n                break\n            }\n\n            case 'showStatus': {\n                response = this.showStatus(value, prop)\n                break\n            }\n\n            case 'uiGet': {\n                response = _ui.uiGet(prop, value)\n                break\n            }\n\n            case 'uiWatch': {\n                response = this.uiWatch(prop)\n                break\n            }\n\n            case 'watchUrlHash': {\n                response = this.watchUrlHash(prop)\n                break\n            }\n\n            default: {\n                log('warning', 'Uib:_uibCommand', `Command '${cmd}' not yet implemented`)()\n                break\n            }\n        }\n\n        if (quiet !== true) {\n            if (response === undefined) {\n                response = `'${prop}' is undefined`\n            }\n            if (Object(response).constructor === Promise) {\n                // response = `'${cmd} ${prop}' submitted. Cmd is async, no response available`\n                response\n                    .then( (/** @type {any} */ data) => {\n                        msg.payload = msg._uib.response = data\n                        msg.info = msg._uib.info = info\n                        if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                        this.send(msg)\n                        return true\n                    })\n                    .catch( err => {\n                        log(0, 'Uib:_uibCommand', 'Error: ', err)()\n                    })\n            } else {\n                msg.payload = msg._uib.response = response\n                msg.info = msg._uib.info = info\n                if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                this.send(msg)\n            }\n        }\n    } // --- end of _uibCommand ---\n\n    /** Do we want to process something? Check pageName, clientId, tabId. Defaults to yes.\n     * @param {*} obj Either a msg._ui or msg._uib object to check\n     * @returns {boolean} True if we should process the inbound _ui/_uib msg, false if not.\n     */\n    _forThis(obj) {\n        let r = true\n\n        // Is this msg for this pageName?\n        if (obj.pageName && obj.pageName !== this.pageName) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this page')()\n            r = false\n        }\n\n        // Is this msg for this clientId?\n        if (obj.clientId && obj.clientId !== this.clientId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this clientId')()\n            r = false\n        }\n\n        // Is this msg for this tabId?\n        if (obj.tabId && obj.tabId !== this.tabId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this tabId')()\n            r = false\n        }\n\n        return r\n    }\n\n    // Handle received messages - Process some msgs internally, emit specific events on document that make it easy for coders to use\n    _msgRcvdEvents(msg) {\n        // Message received\n        this._dispatchCustomEvent('uibuilder:stdMsgReceived', msg)\n\n        // Topic\n        if ( msg.topic ) this._dispatchCustomEvent(`uibuilder:msg:topic:${msg.topic}`, msg)\n\n        // Handle msg._uib special requests\n        if (msg._uib) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._uib)) return\n\n            /** Process a client reload request from Node-RED - as the page is reloaded, everything else is ignored\n             * Note that msg._ui.reload is also actioned via the _ui processing below */\n            if (msg._uib.reload === true) {\n                log('trace', 'Uib:_msgRcvdEvents:_uib:reload', 'reloading')()\n                location.reload()\n                return\n            }\n\n            // Process msg._uib.command messages - allows Node-RED to run uibuilder FE functions\n            if (msg._uib.command) {\n                this._uibCommand(msg)\n                return\n            }\n\n            // Better to request via msg._ui - these are for backwards compatibility\n            if ( msg._uib.componentRef === 'globalNotification' ) {\n                _ui.showDialog('notify', msg._uib.options, msg)\n            }\n            if ( msg._uib.componentRef === 'globalAlert' ) {\n                _ui.showDialog('alert', msg._uib.options, msg)\n            }\n        }\n\n        // Handle msg._ui requests\n        if ( msg._ui ) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._ui)) return\n\n            log('trace', 'Uib:_msgRcvdEvents:_ui', 'Calling _uiManager')()\n            this._dispatchCustomEvent('uibuilder:msg:_ui', msg)\n            _ui._uiManager(msg)\n        }\n    } // --- end of _msgRcvdEvents ---\n\n    /** Callback handler for messages from Node-RED\n     * NOTE: `this` is the class here rather the `socket` as would be normal since we bind the correct `this` in the call.\n     *       Use this._socket if needing reference to the socket.\n     * @callback ioSetupFromServer Called from ioSetup/this._socket.on(this.#ioChannels.server, this.stdMsgFromServer.bind(this))\n     * @param {object} receivedMsg The msg object from Node-RED\n     * @this Uib\n     */\n    _stdMsgFromServer(receivedMsg) {\n\n        // Make sure that msg is an object & not null\n        receivedMsg = makeMeAnObject(receivedMsg, 'payload')\n\n        // Don't process if the inbound msg is not for us\n        if (receivedMsg._uib && !this._forThis(receivedMsg._uib)) return\n        if (receivedMsg._ui && !this._forThis(receivedMsg._ui)) return\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedMsg)\n\n        // Track how many messages have been received\n        this.set('msgsReceived', ++this.msgsReceived)\n\n        // Emit specific document events on msg receipt that make it easy for coders to use\n        this._msgRcvdEvents(receivedMsg)\n\n        if ( !('_ui' in receivedMsg && !('payload' in receivedMsg)) ) {\n            // Save the msg for further processing\n            this.set('msg', receivedMsg)\n        }\n\n        log('info', 'Uib:ioSetup:stdMsgFromServer', `Channel '${this._ioChannels.server}'. Received msg #${this.msgsReceived}.`, receivedMsg)()\n\n        // ! NOTE: Don't try to handle specialist messages here. See _msgRcvdEvents.\n\n    } // -- End of websocket receive DATA msg from Node-RED -- //\n\n    /** Handles original control msgs (not to be confused with \"new\" msg._uib controls)\n     * @param {*} receivedCtrlMsg The msg received on the socket.io control channel\n     */\n    _ctrlMsgFromServer(receivedCtrlMsg) {\n\n        // Make sure that msg is an object & not null\n        if (receivedCtrlMsg === null) {\n            receivedCtrlMsg = {}\n        } else if (typeof receivedCtrlMsg !== 'object') {\n            const msg = {}\n            msg['uibuilderCtrl:' + this._ioChannels.control] = receivedCtrlMsg\n            receivedCtrlMsg = msg\n        }\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedCtrlMsg)\n\n        this.set('ctrlMsg', receivedCtrlMsg)\n        this.set('msgsCtrlReceived', ++this.msgsCtrlReceived)\n\n        log('trace', 'Uib:ioSetup:_ctrlMsgFromServer', `Channel '${this._ioChannels.control}'. Received control msg #${this.msgsCtrlReceived}`, receivedCtrlMsg)()\n\n        /** Process control msg types */\n        switch (receivedCtrlMsg.uibuilderCtrl) {\n            // Node-RED is shutting down\n            case 'shutdown': {\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, '\u274C Received \"shutdown\" from server')()\n                this.set('serverShutdown', undefined)\n                break\n            }\n\n            /** We are connected to the server - 1st msg from server */\n            case 'client connect': {\n                log('trace', `Uib:ioSetup:${this._ioChannels.control}`, 'Received \"client connect\" from server')()\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, `\u2705 Server connected. Version: ${receivedCtrlMsg.version}\\nServer time: ${receivedCtrlMsg.serverTimestamp}, Sever time offset: ${this.serverTimeOffset} hours`)()\n\n                if ( !Uib._meta.version.startsWith(receivedCtrlMsg.version.split('-')[0]) ) {\n                    log('warn', `Uib:ioSetup:${this._ioChannels.control}`, `Server version (${receivedCtrlMsg.version}) not the same as the client version (${Uib._meta.version})`)()\n                }\n\n                if (this.autoSendReady === true) { // eslint-disable-line no-lonely-if\n                    log('trace', `Uib:ioSetup:${this._ioChannels.control}/client connect`, 'Auto-sending ready-for-content/replay msg to server')\n                    // @since 0.4.8c Add cacheControl property for use with node-red-contrib-infocache\n                    // @since 6.1.0 Don't bother, we use the \"client connect\" msg\n                    // this._send({\n                    //     'uibuilderCtrl': 'ready for content',\n                    //     'cacheControl': 'REPLAY',\n                    // }, this._ioChannels.control)\n                }\n\n                break\n            }\n\n            default: {\n                log('trace', `uibuilderfe:ioSetup:${this._ioChannels.control}`, `Received ${receivedCtrlMsg.uibuilderCtrl} from server`)\n                // Anything else to do for other control msgs?\n            }\n\n        } // ---- End of process control msg types ---- //\n\n    } // -- End of websocket receive CONTROL msg from Node-RED -- //\n\n    /** Send log text to uibuilder's beacon endpoint (works even if socket.io not connected)\n     * @param {string} txtToSend Text string to send\n     * @param {string|undefined} logLevel Log level to use. If not supplied, will default to debug\n     */\n    beaconLog(txtToSend, logLevel) {\n        if (!logLevel) logLevel = 'debug'\n        navigator.sendBeacon('./_clientLog', `${logLevel}::${txtToSend}`)\n    }\n\n    /** Send log info back to Node-RED over uibuilder's websocket control output (Port #2)\n     * @param {...*} arguments All arguments passed to the function are added to the msg.payload\n     */\n    logToServer() {\n        this.sendCtrl({\n            uibuilderCtrl: 'client log message',\n            payload: arguments,\n            // \"version\":\"6.1.0-iife.min\",\n            _socketId: this._socket.id,\n            // \"ip\":\"::1\",\n            clientId: this.clientId,\n            tabId: this.tabId,\n            // \"url\":\"esp-test\",\n            pageName: this.pageName,\n            connections: this.connectedNum,\n            lastNavType: this.lastNavType,\n        })\n    }\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Socket.IO -------- //\n\n    /** Return the Socket.IO namespace\n     * The cookie method is the most reliable but this falls back to trying to work it\n     * out from the URL if cookies not available. That won't work if page is in a sub-folder.\n     * since 2017-10-21 Improve method to cope with more complex paths - thanks to Steve Rickus @shrickus\n     * since 2017-11-10 v1.0.1 Check cookie first then url. cookie works even if the path is more complex (e.g. sub-folder)\n     * since 2020-01-25 Removed httpRoot from namespace to prevent proxy induced errors\n     * @returns {string} Socket.IO namespace\n     */\n    _getIOnamespace() {\n\n        let ioNamespace\n\n        /** Try getting the namespace cookie. */\n        ioNamespace = this.cookies['uibuilder-namespace']\n\n        // if it wasn't available, try using the current url path\n        if (ioNamespace === undefined || ioNamespace === '') {\n            // split url path & eliminate any blank elements, and trailing or double slashes\n            const u = window.location.pathname.split('/')\n                .filter(function (t) { return t.trim() !== '' })\n\n            /** since v2.0.5 Extra check for 0 length, Issue #73. since 2017-11-06 If the last element of the path is an .html file name, remove it */\n            if (u.length > 0 && (u[u.length - 1].endsWith('.html'))) u.pop()\n\n            // Get the last part of the url path, this MUST match the namespace in uibuilder\n            ioNamespace = u.pop()\n\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via url path: ${ioNamespace}`)()\n        } else {\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via cookie: ${ioNamespace}`)()\n        }\n\n        this.url = ioNamespace\n        // Namespace HAS to start with a /\n        ioNamespace = '/' + ioNamespace\n\n        log('trace', 'uibuilder.module.js:getIOnamespace', `Final Socket.IO namespace: ${ioNamespace}`)()\n\n        return ioNamespace\n    } // --- End of set IO namespace --- //\n\n    /** Function used to check whether Socket.IO is connected to the server, reconnect if not (recursive)\n     * @param {number} [delay] Initial delay before checking (ms). Default=2000ms\n     * @param {number} [factor] Multiplication factor for subsequent checks (delay*factor). Default=1.5\n     * @param {number} [depth] Recursion depth\n     * @returns {boolean|undefined} Whether or not Socket.IO is connected to uibuilder in Node-RED\n     */\n    _checkConnect(delay, factor, depth = 1) {\n        if ( navigator.onLine === false ) return // Don't bother if we know we are offline\n\n        if (!delay) delay = this.retryMs\n        if (!factor) factor = this.retryFactor\n\n        log('trace', 'Uib:checkConnect', `Checking connection. Connected: ${this._socket.connected}. Timer: ${this.#timerid}. Depth: ${depth}. Delay: ${delay}. Factor: ${factor}`, this._socket)()\n\n        // If we are connected ...\n        if (this._socket.connected === true) {\n            // Clear the setTimeout\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this.set('ioConnected', true)\n            this.set('socketError', null)\n            return true\n        }\n\n        // ... we aren't connected so:\n        this.set('ioConnected', false)\n\n        // we only want one running at a time\n        if (this.#timerid) window.clearTimeout(this.#timerid)\n\n        // Create the new timer\n        this.#timerid = window.setTimeout(() => {\n            log('warn', 'Uib:checkConnect:setTimeout', `Socket.IO reconnection attempt. Current delay: ${delay}. Depth: ${depth}`)()\n\n            // this is necessary sometimes when the socket fails to connect on startup\n            this._socket.close()\n\n            // Try to reconnect\n            this._socket.connect()\n\n            // don't need to check whether we have connected as the timer will have been cleared if we have\n            this.#timerid = null\n\n            // @ts-ignore Create new timer for next time round with extended delay\n            this._checkConnect(delay * factor, factor, depth++)\n        }, delay)\n\n        return false\n    } // --- End of checkConnect Fn--- //\n\n    // See message handling section for msg receipt handlers\n\n    /** Called by _ioSetup when Socket.IO connects to Node-RED */\n    _onConnect() {\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n        log('info', 'Uib:ioSetup', `\u2705 SOCKET CONNECTED. Connection count: ${this.connectedNum}, Is a Recovery?: ${this._socket.recovered}. \\nNamespace: ${this.ioNamespace}`)()\n        this._dispatchCustomEvent('uibuilder:socket:connected', { 'numConnections': this.connectedNum, 'isRecovery': this._socket.recovered })\n\n        this._checkConnect() // resets any reconnection timers & sets connected flag\n    }\n\n    /** Called by _ioSetup when Socket.IO disconnects from Node-RED\n     * @param {string} reason Disconnection title\n     */\n    _onDisconnect(reason) {\n        // reason === 'io server disconnect' - redeploy of Node instance\n        // reason === 'transport close' - Node-RED terminating\n        // reason === 'ping timeout' - didn't receive a pong response?\n        log('info', 'Uib:ioSetup:socket-disconnect', `\u26D4 Socket Disconnected. Reason: ${reason}`)()\n\n        this._dispatchCustomEvent('uibuilder:socket:disconnected', reason)\n\n        /** A workaround for SIO's failure to reconnect after a disconnection */\n        this._checkConnect()\n    }\n\n    /** Setup Socket.io\n     * since v2.0.0-beta2 Moved to a function and called by the user (uibuilder.start()) so that namespace & path can be passed manually if needed\n     * @returns {boolean} Attaches socket.io manager to self._socket and updates self.ioNamespace & self.ioPath as needed\n     */\n    _ioSetup() {\n\n        // Just a notification, actual load is done outside the class (see start of file)\n        if (io === undefined) {\n            log('error', 'Uib:ioSetup', 'Socket.IO client not loaded, Node-RED comms will not work')()\n            return false\n        }\n\n        // If socket is already set up, close it and remove all of the listeners\n        if (this._socket) {\n            log('trace', 'Uib:ioSetup', 'Removing listeners in preparation for redoing Socket.IO connections')()\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this._socket.close()\n            this._socket.offAny()\n            this._socket = undefined\n            this.set('ioConnected', false)\n        }\n\n        // Update the URL path to make sure we have the right one\n        this.socketOptions.path = this.ioPath\n\n        // NOTE: this._socket.auth is now set by callback and so automatically updated for each client (re)connection. No need to set here\n\n        // Create the socket - make sure client uses Socket.IO version from the uibuilder module (using path)\n        log('trace', 'Uib:ioSetup', `About to create IO object. Transports: [${this.socketOptions.transports.join(', ')}]`)()\n        this._socket = io(this.ioNamespace, this.socketOptions)\n\n        /** When the socket is connected - set ioConnected flag and reset connect timer  */\n        this._socket.on('connect', this._onConnect.bind(this))\n\n        // RECEIVE a STANDARD, non-control msg from Node-RED server\n        this._socket.on(this._ioChannels.server, this._stdMsgFromServer.bind(this))\n\n        // RECEIVE a CONTROL msg from Node-RED server - see also sendCtrl()\n        this._socket.on(this._ioChannels.control, this._ctrlMsgFromServer.bind(this))\n\n        // When the socket is disconnected ..............\n        this._socket.on('disconnect', this._onDisconnect.bind(this))\n\n        // Socket.io connection error - probably the wrong ioPath - or client is offline\n        this._socket.on('connect_error', (err) => {\n            if ( navigator.onLine === false ) return // Don't bother with an error if we know we are offline\n            log('error', 'Uib:ioSetup:connect_error', `\u274C Socket.IO Connect Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket connect error processing ---\n\n        // Socket.io error - from the server (socket.use middleware triggered an error response)\n        this._socket.on('error', (err) => {\n            log('error', 'Uib:ioSetup:error', `\u274C Socket.IO Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket error processing ---\n\n        // Ensure we are connected, retry if not\n        this._checkConnect()\n\n        return true\n\n        /* We really don't need these, just for interest\n            self._socket.io.on('packet', function onPacket(data){\n                // we get one of these for each REAL msg (not ping/pong)\n                console.debug('PACKET', data)\n            })\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n                //console.dir(self._socket)\n            }) // --- End of socket pong processing ---\n            self._socket.io.on('packet', function(data){\n                // We get one of these for actual messages, not ping/pong\n                console.debug('PACKET', data)\n            })\n            self._socket.on('connect_timeout', function(timeout) {\n                console.debug('SOCKET CONNECT TIMEOUT - Namespace: ' + ioNamespace + ', Timeout: ' + timeout)\n            }) // --- End of socket connect timeout processing ---\n            self._socket.on('reconnect', function(attemptNum) {\n                console.debug('SOCKET RECONNECTED - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect processing ---\n            self._socket.on('reconnect_attempt', function(attemptNum) {\n                console.debug('SOCKET RECONNECT ATTEMPT - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect_attempt processing ---\n            self._socket.on('reconnecting', function(attemptNum) {\n                console.debug('SOCKET RECONNECTING - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnecting processing ---\n            self._socket.on('reconnect_error', function(err) {\n                console.debug('SOCKET RECONNECT ERROR - Namespace: ' + ioNamespace + ', Reason: ' + err.message)\n                //console.dir(err)\n            }) // --- End of socket reconnect_error processing ---\n            self._socket.on('reconnect_failed', function() {\n                console.debug('SOCKET RECONNECT FAILED - Namespace: ' + ioNamespace)\n            }) // --- End of socket reconnect_failed processing ---\n            self._socket.on('ping', function() {\n                console.debug('SOCKET PING')\n            }) // --- End of socket ping processing ---\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n            }) // --- End of socket pong processing ---\n            */\n    } // ---- End of ioSetup ---- //\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Class construction & startup method -------- //\n\n    constructor() {\n        log('trace', 'Uib:constructor', 'Starting')()\n\n        // Track whether the client is online or offline\n        window.addEventListener('offline', (e) => {\n            this.set('online', false)\n            this.set('ioConnected', false)\n            log('warn', 'Browser', 'DISCONNECTED from network')()\n        })\n        window.addEventListener('online', (e) => {\n            this.set('online', true)\n            log('warn', 'Browser', 'Reconnected to network')()\n            this._checkConnect()\n        })\n\n        document.cookie.split(';').forEach((c) => {\n            const splitC = c.split('=')\n            this.cookies[splitC[0].trim()] = splitC[1]\n        })\n\n        /** Client ID set by uibuilder - lasts until browser profile is closed, applies to all tabs */\n        this.set('clientId', this.cookies['uibuilder-client-id'])\n        log('trace', 'Uib:constructor', 'Client ID: ', this.clientId)()\n\n        /** Tab ID - lasts while the tab is open (even if reloaded)\n         * WARNING: Duplicating a tab retains the same tabId\n         */\n        this.set('tabId', window.sessionStorage.getItem('tabId'))\n        if (!this.tabId) {\n            this.set('tabId', `t${Math.floor(Math.random() * 1000000)}`)\n            window.sessionStorage.setItem('tabId', this.tabId)\n        }\n\n        // document.addEventListener('pagehide', (event) => {\n        //     // console.log(`pagehide. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pagehide. From Cache?: ${event.persisted}`)\n        // })\n        // document.addEventListener('pageshow', (event) => {\n        //     // console.log(`pageshow. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pageshow. From Cache?: ${event.persisted}`)\n        // })\n        document.addEventListener('load', () => {\n            this.set('isVisible', true)\n        })\n        document.addEventListener('visibilitychange', () => {\n            // hidden=unload, minimise. visible=un-minimise (not fired on load)\n            this.set('isVisible', document.visibilityState === 'visible')\n            this.sendCtrl({ uibuilderCtrl: 'visibility', isVisible: this.isVisible })\n            // navigator.userActivation is experimental Chromium only\n            // console.log('visibilitychange', ':', `Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n            // navigator.sendBeacon('./_clientLog', `${(new Date()).toISOString()} Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n        })\n\n        // Set a listener to update showStatus table if it is active\n        document.addEventListener('uibuilder:propertyChanged', (event) => {\n            if (!this.#isShowStatus) return\n\n            // @ts-ignore\n            if (event.detail.prop in this.#showStatus) {\n                // @ts-ignore\n                document.querySelector(`td[data-vartype=\"${event.detail.prop}\"]`).innerText = JSON.stringify(event.detail.value)\n            }\n        })\n\n        this.set('ioNamespace', this._getIOnamespace())\n\n        //#region - Try to make sure client uses Socket.IO client version from the uibuilder module (using cookie or path) @since v2.0.0 2019-02-24 allows for httpNodeRoot\n\n        /** httpNodeRoot (to set path) */\n        if ('uibuilder-webRoot' in this.cookies) {\n            this.set('httpNodeRoot', this.cookies['uibuilder-webRoot'])\n            log('trace', 'Uib:constructor', `httpNodeRoot set by cookie to \"${this.httpNodeRoot}\"`)()\n        } else {\n            // split current url path, eliminate any blank elements and trailing or double slashes\n            const fullPath = window.location.pathname.split('/').filter(function (t) { return t.trim() !== '' })\n            /** handle url includes file name - @since v2.0.5 Extra check for 0 length, Issue #73. */\n            if (fullPath.length > 0 && fullPath[fullPath.length - 1].endsWith('.html')) fullPath.pop()\n            fullPath.pop() // gives the last path section of the url\n            this.set('httpNodeRoot', `/${fullPath.join('/')}`)\n            log('trace', '[Uib:constructor]', `httpNodeRoot set by URL parsing to \"${this.httpNodeRoot}\". NOTE: This may fail for pages in sub-folders.`)()\n        }\n        this.set('ioPath', urlJoin(this.httpNodeRoot, Uib._meta.displayName, 'vendor', 'socket.io'))\n        log('trace', 'Uib:constructor', `ioPath: \"${this.ioPath}\"`)()\n\n        //#endregion\n\n        // Work out pageName\n        this.set('pageName', window.location.pathname.replace(`${this.ioNamespace}/`, ''))\n        if ( this.pageName.endsWith('/') ) this.set('pageName', `${this.pageName}index.html`)\n        if ( this.pageName === '' ) this.set('pageName', 'index.html')\n\n        // Attempt to restore autoload variables\n        try {\n            const autoloadVars = this.getStore('_uibAutoloadVars')\n            if (Object.keys(autoloadVars).length > 0) {\n                Object.keys(autoloadVars).forEach( (id) => {\n                    this.set(id, this.getStore(id))\n                })\n            }\n        } catch (e) {}\n\n        this._dispatchCustomEvent('uibuilder:constructorComplete')\n\n        log('trace', 'Uib:constructor', 'Ending')()\n    }\n\n    /** Start up Socket.IO comms and listeners\n     * This has to be done separately because if running from a web page in a sub-folder of src/dist, uibuilder cannot\n     * necessarily work out the correct ioPath to use.\n     * Also, if cookies aren't permitted in the browser, both ioPath and ioNamespace may need to be specified.\n     * @param {object} [options] The start options object.\n     * @returns {void}\n     */\n    start(options) {\n        log('trace', 'Uib:start', 'Starting')()\n\n        // Cancel the msg event handler if already present\n        if ( this.#MsgHandler ) this.cancelChange('msg', this.#MsgHandler)\n\n        if (this.started === true) {\n            log('info', 'Uib:start', 'Start function already called. Resetting Socket.IO and msg handler.')()\n        }\n\n        log('log', 'Uib:start', 'Cookies: ', this.cookies, `\\nClient ID: ${this.clientId}`)()\n        log('trace', 'Uib:start', 'ioNamespace: ', this.ioNamespace, `\\nioPath: ${this.ioPath}`)()\n\n        // Handle options\n        if (options) {\n            if (options.ioNamespace !== undefined && options.ioNamespace !== null && options.ioNamespace !== '') this.set('ioNamespace', options.ioNamespace)\n            if (options.ioPath !== undefined && options.ioPath !== null && options.ioPath !== '') this.set('ioPath', options.ioPath)\n            // See below for handling of options.loadStylesheet\n        }\n\n        // Do we need to load styles?\n        if ( document.styleSheets.length >= 1 || (document.styleSheets.length === 1 && document.styleSheets[0].cssRules.length === 0) ) {\n            log('info', 'Uib:start', 'Styles already loaded so not loading uibuilder default styles.')()\n        } else {\n            if (options && options.loadStylesheet === false) log('info', 'Uib:start', 'No styles loaded & options.loadStylesheet === false.')()\n            else {\n                log('info', 'Uib:start', 'No styles loaded, loading uibuilder default styles.')()\n                this.loadStyleSrc(`${this.httpNodeRoot}/uibuilder/uib-brand.min.css`)\n            }\n        }\n\n        /** Handle specialist messages like reload and _ui -> Moved to _msgRcvdEvents */\n\n        // Track last browser navigation type: navigate, reload, back_forward, prerender\n        const [entry] = performance.getEntriesByType('navigation')\n        // @ts-ignore\n        this.set('lastNavType', entry.type)\n\n        // Start up (or restart) Socket.IO connections and listeners. Returns false if io not found\n        this.set('started', this._ioSetup())\n\n        if ( this.started === true ) {\n            log('trace', 'Uib:start', 'Start completed. Socket.IO client library loaded.')()\n        } else {\n            log('error', 'Uib:start', 'Start completed. ERROR: Socket.IO client library NOT LOADED.')()\n        }\n\n        // Watch for URL hash changes in case using a front-end router. Updates watched var `urlHash` and socket.io `auth.urlHash`\n        this._watchHashChanges()\n\n        // Check if Vue is present (used for dynamic UI processing)\n        if (window['Vue']) {\n            this.set('isVue', true)\n            try {\n                this.set('vueVersion', window['Vue'].version)\n            } catch (e) { }\n            log('trace', 'Uib:start', `VueJS is loaded. Version: ${this.vueVersion}`)()\n        } else {\n            log('trace', 'Uib:start', 'VueJS is not loaded.')()\n        }\n\n        // Check if DOMPurify library is loaded\n        if (window['DOMPurify']) {\n            this.set('purify', true)\n            log('trace', 'Uib:start', 'DOMPurify is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'DOMPurify is not loaded.')()\n        }\n        // Check if Markdown-IT library is loaded\n        if (window['markdownit']) {\n            this.set('markdown', true)\n            log('trace', 'Uib:start', 'Markdown-IT is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'Markdown-IT is not loaded.')()\n        }\n\n        // if (window['DOMPurify']) {\n        //     this.set('purify', true)\n        //     log('trace', 'Uib:start', 'DOMPurify is loaded.')\n        // } else {\n        //     log('trace', 'Uib:start', 'DOMPurify is not loaded.')\n        // }\n\n        // Set up msg listener for the optional showMsg\n        this.onChange('msg', (msg) => {\n            if (this.#isShowMsg === true) {\n                const eMsg = document.getElementById('uib_last_msg')\n                if (eMsg) eMsg.innerHTML = this.syntaxHighlight(msg)\n            }\n        })\n\n        this._dispatchCustomEvent('uibuilder:startComplete')\n    }\n\n    //#endregion -------- ------------ -------- //\n} // ==== End of Class Uib ====\n\n//#region --- Wrap up - get things started ---\n\n// Create an instance (we will only ever want one)\nconst uibuilder = new Uib()\n\n// Assign reference to the instance to the global `window` object\n// Only useful if loading via <script> tag - prefer loading via `import uibuilder from ...`\nif (!window['uibuilder']) {\n    window['uibuilder'] = uibuilder\n} else {\n    log('error', 'uibuilder.module.js', '`uibuilder` already assigned to window. Have you tried to load it more than once?')\n}\nif (!window['uib']) {\n    window['uib'] = uibuilder\n} else {\n    log('warn', 'uibuilder.module.js', '`uib` shortcut already assigned to window.')\n}\n\n// Assign `$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$`.\nif (!window['$']) {\n    /** @type {HTMLElement} */\n    window['$'] = window['uibuilder'].$ // document.querySelector.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` instead.')\n}\n// Assign `$$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$$']) {\n    /** @type {HTMLElement} */\n    window['$$'] = window['uibuilder'].$$ // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` instead.')\n}\n\n// Can import as `import uibuilder from ...` OR `import {uibuilder} from ...`\nexport { uibuilder }\nexport default uibuilder\n\n// Attempt to run start fn\nuibuilder.start()\n\n// Add the class as a new Custom Element to the window object\ncustomElements.define('uib-var', UibVar)\n\n//#endregion --- Wrap up ---\n\n// EOF\n", "/** A zero dependency web component that will display a managed uibuilder variable.\n *\n * Version: 0.0.1 2023-10-07\n *\n * ToDo:\n * -\n */\n/*\n  Copyright (c) 2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n// const template = document.createElement('template')\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<link type=\"text/css\" rel=\"stylesheet\" href=\"\"../uibuilder/uib-brand.min.css\"\" media=\"all\"><span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`\n// {/* <style>@import url(\"../uibuilder/uib-brand.min.css\");</style><span></span> */}\n// `\n\nexport default class UibVar extends HTMLElement {\n    //#region --- Class Properties ---\n    /** @type {string} Name of the uibuilder mangaged variable to use */\n    variable\n    /** Current value of the watched variable */\n    value\n    /** Whether to output if the variable is undefined */\n    undefined = false\n    /** Whether to send update value to Node-RED on change */\n    report = false\n    /** What is the value type */\n    type = 'plain'\n    /** what are the available types? */\n    types = ['plain', 'html', 'markdown', 'object']\n\n    /** Mini jQuery-like shadow dom selector (see constructor) */\n    $\n    \n    /** Holds a count of how many instances of this component are on the page */\n    static _iCount = 0\n    /** @type {Array<string>} List of all of the html attribs (props) listened to */\n    static props = ['name', 'id', 'variable', 'undefined', 'report', 'type']\n    //#endregion --- Class Properties ---\n\n    constructor() {\n        super()\n        this.shadow = this.attachShadow({ mode: 'open', delegatesFocus: true })\n            // .append(template.content.cloneNode(true))\n\n        this.$ = this.shadowRoot.querySelector.bind(this.shadowRoot)\n\n        // Apply external styles to the shadow dom\n        this.css = document.createElement(\"link\")\n        this.css.setAttribute(\"type\", \"text/css\")\n        this.css.setAttribute(\"rel\", \"stylesheet\")\n        this.css.setAttribute(\"href\", \"../uibuilder/uib-brand.min.css\")\n\n        this.dispatchEvent(new Event(`uib-var:construction`, { bubbles: true, composed: true }))\n    }\n\n    // Makes HTML attribute change watched\n    static get observedAttributes() {\n        return UibVar.props\n    }\n\n    /** NOTE: On initial startup, this is called for each watched attrib set in HTML - BEFORE connectedCallback is called  */\n    attributeChangedCallback(attrib, oldVal, newVal) {\n        if ( oldVal === newVal ) return\n\n        switch (attrib) {\n            case 'variable': {\n                if (newVal === '') throw new Error('[uib-var] Attribute \"variable\" MUST be set to a UIBUILDER managed variable name')\n                this.variable = newVal\n                this.doWatch()\n                break\n            }\n            case 'undefined': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.undefined = true\n                else this.undefined = false\n                break\n            }\n            case 'report': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.report = true\n                else this.report = false\n                break\n            }\n            case 'type': {\n                if (newVal === '' || !this.types.includes(newVal.toLowerCase())) this.type = 'plain'\n                else this.type = newVal\n                break\n            }\n\n            default: {\n                this[attrib] = newVal\n                break\n            }\n        }\n    } // --- end of attributeChangedCallback --- //\n\n    // Runs when an instance is added to the DOM\n    connectedCallback() {\n        // Make sure instance has an ID. Create an id from name or calculation if needed\n        if (!this.id) {\n            if (!this.name) this.name = this.getAttribute('name')\n            if (this.name) this.id = this.name.toLowerCase().replace(/\\s/g, '_')\n            else this.id = `uib-var-${++UibVar._iCount}`\n        }\n    }  // ---- end of connectedCallback ---- //\n\n    // Runs when an instance is removed from the DOM\n    // disconnectedCallback() {} // ---- end of disconnectedCallback ---- //\n\n    /** Process changes to the required uibuilder variable */\n    doWatch() {\n        if (!this.variable) throw new Error('No variable name provided')\n        // if (!window['uibuilder']) throw new Error('UIBUILDER client library not loaded - this component must be loaded AFTER the UIBUILDER library')\n\n        this.value = window['uibuilder'].get(this.variable)\n        this.varDom()\n\n        // Watch for changes in the variable\n        window['uibuilder'].onChange(this.variable, (val) => {\n            this.value = val\n            this.varDom()\n            if (this.report === true) window['uibuilder'].send({topic: this.variable, payload: this.value || undefined})\n        })\n    }\n\n    /** Convert this.value to DOM output */\n    varDom() {\n        // If user doesn't want to show undefined vars, allow the component slot to show instead\n        if (this.value === undefined && this.undefined !== true) { \n            this.shadow.innerHTML = '<slot></slot>'\n            return\n        }\n        \n        let val = this.value\n\n        // console.log('\uD83E\uDDEA varDOM: ', val, typeof val, this.type)\n\n        switch (this.type) {\n            case 'markdown': {\n                this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(window['uibuilder'].convertMarkdown(val))\n                break\n            }\n        \n            case 'object': {\n                // console.log(window['uibuilder'].syntaxHighlight(val))\n                this.shadow.innerHTML = `<pre class=\"syntax-highlight\">${window['uibuilder'].syntaxHighlight(val)}</pre>`\n                break\n            }\n        \n            case 'plain':\n            case 'html':\n            default: {\n                const t = typeof val\n                if (Array.isArray(val) || t === '[object Object]' || t === 'object') {\n                    try {\n                        this.shadow.innerHTML = JSON.stringify(val)\n                    } catch (e) {\n                        this.shadow.innerHTML = val\n                    }\n                } else {\n                    this.shadow.innerHTML = val\n                }\n                break\n            }\n        }\n\n        this.shadow.appendChild(this.css)\n        // this.$('span').innerHTML = window['uibuilder'].sanitiseHTML(val)\n        // this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(val)\n    }\n}\n\n// Add the class as a new Custom Element to the window object \n// customElements.define('uib-var', UibVar)\n", "const PACKET_TYPES = Object.create(null); // no Map = no polyfill\nPACKET_TYPES[\"open\"] = \"0\";\nPACKET_TYPES[\"close\"] = \"1\";\nPACKET_TYPES[\"ping\"] = \"2\";\nPACKET_TYPES[\"pong\"] = \"3\";\nPACKET_TYPES[\"message\"] = \"4\";\nPACKET_TYPES[\"upgrade\"] = \"5\";\nPACKET_TYPES[\"noop\"] = \"6\";\nconst PACKET_TYPES_REVERSE = Object.create(null);\nObject.keys(PACKET_TYPES).forEach(key => {\n    PACKET_TYPES_REVERSE[PACKET_TYPES[key]] = key;\n});\nconst ERROR_PACKET = { type: \"error\", data: \"parser error\" };\nexport { PACKET_TYPES, PACKET_TYPES_REVERSE, ERROR_PACKET };\n", "import { PACKET_TYPES } from \"./commons.js\";\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        Object.prototype.toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\n// ArrayBuffer.isView method is not defined in IE10\nconst isView = obj => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj && obj.buffer instanceof ArrayBuffer;\n};\nconst encodePacket = ({ type, data }, supportsBinary, callback) => {\n    if (withNativeBlob && data instanceof Blob) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(data, callback);\n        }\n    }\n    else if (withNativeArrayBuffer &&\n        (data instanceof ArrayBuffer || isView(data))) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(new Blob([data]), callback);\n        }\n    }\n    // plain string\n    return callback(PACKET_TYPES[type] + (data || \"\"));\n};\nconst encodeBlobAsBase64 = (data, callback) => {\n    const fileReader = new FileReader();\n    fileReader.onload = function () {\n        const content = fileReader.result.split(\",\")[1];\n        callback(\"b\" + (content || \"\"));\n    };\n    return fileReader.readAsDataURL(data);\n};\nfunction toArray(data) {\n    if (data instanceof Uint8Array) {\n        return data;\n    }\n    else if (data instanceof ArrayBuffer) {\n        return new Uint8Array(data);\n    }\n    else {\n        return new Uint8Array(data.buffer, data.byteOffset, data.byteLength);\n    }\n}\nlet TEXT_ENCODER;\nexport function encodePacketToBinary(packet, callback) {\n    if (withNativeBlob && packet.data instanceof Blob) {\n        return packet.data\n            .arrayBuffer()\n            .then(toArray)\n            .then(callback);\n    }\n    else if (withNativeArrayBuffer &&\n        (packet.data instanceof ArrayBuffer || isView(packet.data))) {\n        return callback(toArray(packet.data));\n    }\n    encodePacket(packet, false, encoded => {\n        if (!TEXT_ENCODER) {\n            TEXT_ENCODER = new TextEncoder();\n        }\n        callback(TEXT_ENCODER.encode(encoded));\n    });\n}\nexport { encodePacket };\n", "// imported from https://github.com/socketio/base64-arraybuffer\nconst chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';\n// Use a lookup table to find the index.\nconst lookup = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);\nfor (let i = 0; i < chars.length; i++) {\n    lookup[chars.charCodeAt(i)] = i;\n}\nexport const encode = (arraybuffer) => {\n    let bytes = new Uint8Array(arraybuffer), i, len = bytes.length, base64 = '';\n    for (i = 0; i < len; i += 3) {\n        base64 += chars[bytes[i] >> 2];\n        base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];\n        base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];\n        base64 += chars[bytes[i + 2] & 63];\n    }\n    if (len % 3 === 2) {\n        base64 = base64.substring(0, base64.length - 1) + '=';\n    }\n    else if (len % 3 === 1) {\n        base64 = base64.substring(0, base64.length - 2) + '==';\n    }\n    return base64;\n};\nexport const decode = (base64) => {\n    let bufferLength = base64.length * 0.75, len = base64.length, i, p = 0, encoded1, encoded2, encoded3, encoded4;\n    if (base64[base64.length - 1] === '=') {\n        bufferLength--;\n        if (base64[base64.length - 2] === '=') {\n            bufferLength--;\n        }\n    }\n    const arraybuffer = new ArrayBuffer(bufferLength), bytes = new Uint8Array(arraybuffer);\n    for (i = 0; i < len; i += 4) {\n        encoded1 = lookup[base64.charCodeAt(i)];\n        encoded2 = lookup[base64.charCodeAt(i + 1)];\n        encoded3 = lookup[base64.charCodeAt(i + 2)];\n        encoded4 = lookup[base64.charCodeAt(i + 3)];\n        bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n        bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n        bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n    }\n    return arraybuffer;\n};\n", "import { ERROR_PACKET, PACKET_TYPES_REVERSE } from \"./commons.js\";\nimport { decode } from \"./contrib/base64-arraybuffer.js\";\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nexport const decodePacket = (encodedPacket, binaryType) => {\n    if (typeof encodedPacket !== \"string\") {\n        return {\n            type: \"message\",\n            data: mapBinary(encodedPacket, binaryType)\n        };\n    }\n    const type = encodedPacket.charAt(0);\n    if (type === \"b\") {\n        return {\n            type: \"message\",\n            data: decodeBase64Packet(encodedPacket.substring(1), binaryType)\n        };\n    }\n    const packetType = PACKET_TYPES_REVERSE[type];\n    if (!packetType) {\n        return ERROR_PACKET;\n    }\n    return encodedPacket.length > 1\n        ? {\n            type: PACKET_TYPES_REVERSE[type],\n            data: encodedPacket.substring(1)\n        }\n        : {\n            type: PACKET_TYPES_REVERSE[type]\n        };\n};\nconst decodeBase64Packet = (data, binaryType) => {\n    if (withNativeArrayBuffer) {\n        const decoded = decode(data);\n        return mapBinary(decoded, binaryType);\n    }\n    else {\n        return { base64: true, data }; // fallback for old browsers\n    }\n};\nconst mapBinary = (data, binaryType) => {\n    switch (binaryType) {\n        case \"blob\":\n            if (data instanceof Blob) {\n                // from WebSocket + binaryType \"blob\"\n                return data;\n            }\n            else {\n                // from HTTP long-polling or WebTransport\n                return new Blob([data]);\n            }\n        case \"arraybuffer\":\n        default:\n            if (data instanceof ArrayBuffer) {\n                // from HTTP long-polling (base64) or WebSocket + binaryType \"arraybuffer\"\n                return data;\n            }\n            else {\n                // from WebTransport (Uint8Array)\n                return data.buffer;\n            }\n    }\n};\n", "import { encodePacket, encodePacketToBinary } from \"./encodePacket.js\";\nimport { decodePacket } from \"./decodePacket.js\";\nimport { ERROR_PACKET } from \"./commons.js\";\nconst SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text\nconst encodePayload = (packets, callback) => {\n    // some packets may be added to the array while encoding, so the initial length must be saved\n    const length = packets.length;\n    const encodedPackets = new Array(length);\n    let count = 0;\n    packets.forEach((packet, i) => {\n        // force base64 encoding for binary packets\n        encodePacket(packet, false, encodedPacket => {\n            encodedPackets[i] = encodedPacket;\n            if (++count === length) {\n                callback(encodedPackets.join(SEPARATOR));\n            }\n        });\n    });\n};\nconst decodePayload = (encodedPayload, binaryType) => {\n    const encodedPackets = encodedPayload.split(SEPARATOR);\n    const packets = [];\n    for (let i = 0; i < encodedPackets.length; i++) {\n        const decodedPacket = decodePacket(encodedPackets[i], binaryType);\n        packets.push(decodedPacket);\n        if (decodedPacket.type === \"error\") {\n            break;\n        }\n    }\n    return packets;\n};\nexport function createPacketEncoderStream() {\n    return new TransformStream({\n        transform(packet, controller) {\n            encodePacketToBinary(packet, encodedPacket => {\n                const payloadLength = encodedPacket.length;\n                let header;\n                // inspired by the WebSocket format: https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API/Writing_WebSocket_servers#decoding_payload_length\n                if (payloadLength < 126) {\n                    header = new Uint8Array(1);\n                    new DataView(header.buffer).setUint8(0, payloadLength);\n                }\n                else if (payloadLength < 65536) {\n                    header = new Uint8Array(3);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 126);\n                    view.setUint16(1, payloadLength);\n                }\n                else {\n                    header = new Uint8Array(9);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 127);\n                    view.setBigUint64(1, BigInt(payloadLength));\n                }\n                // first bit indicates whether the payload is plain text (0) or binary (1)\n                if (packet.data && typeof packet.data !== \"string\") {\n                    header[0] |= 0x80;\n                }\n                controller.enqueue(header);\n                controller.enqueue(encodedPacket);\n            });\n        }\n    });\n}\nlet TEXT_DECODER;\nfunction totalLength(chunks) {\n    return chunks.reduce((acc, chunk) => acc + chunk.length, 0);\n}\nfunction concatChunks(chunks, size) {\n    if (chunks[0].length === size) {\n        return chunks.shift();\n    }\n    const buffer = new Uint8Array(size);\n    let j = 0;\n    for (let i = 0; i < size; i++) {\n        buffer[i] = chunks[0][j++];\n        if (j === chunks[0].length) {\n            chunks.shift();\n            j = 0;\n        }\n    }\n    if (chunks.length && j < chunks[0].length) {\n        chunks[0] = chunks[0].slice(j);\n    }\n    return buffer;\n}\nexport function createPacketDecoderStream(maxPayload, binaryType) {\n    if (!TEXT_DECODER) {\n        TEXT_DECODER = new TextDecoder();\n    }\n    const chunks = [];\n    let state = 0 /* READ_HEADER */;\n    let expectedLength = -1;\n    let isBinary = false;\n    return new TransformStream({\n        transform(chunk, controller) {\n            chunks.push(chunk);\n            while (true) {\n                if (state === 0 /* READ_HEADER */) {\n                    if (totalLength(chunks) < 1) {\n                        break;\n                    }\n                    const header = concatChunks(chunks, 1);\n                    isBinary = (header[0] & 0x80) === 0x80;\n                    expectedLength = header[0] & 0x7f;\n                    if (expectedLength < 126) {\n                        state = 3 /* READ_PAYLOAD */;\n                    }\n                    else if (expectedLength === 126) {\n                        state = 1 /* READ_EXTENDED_LENGTH_16 */;\n                    }\n                    else {\n                        state = 2 /* READ_EXTENDED_LENGTH_64 */;\n                    }\n                }\n                else if (state === 1 /* READ_EXTENDED_LENGTH_16 */) {\n                    if (totalLength(chunks) < 2) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 2);\n                    expectedLength = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length).getUint16(0);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else if (state === 2 /* READ_EXTENDED_LENGTH_64 */) {\n                    if (totalLength(chunks) < 8) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 8);\n                    const view = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length);\n                    const n = view.getUint32(0);\n                    if (n > Math.pow(2, 53 - 32) - 1) {\n                        // the maximum safe integer in JavaScript is 2^53 - 1\n                        controller.enqueue(ERROR_PACKET);\n                        break;\n                    }\n                    expectedLength = n * Math.pow(2, 32) + view.getUint32(4);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else {\n                    if (totalLength(chunks) < expectedLength) {\n                        break;\n                    }\n                    const data = concatChunks(chunks, expectedLength);\n                    controller.enqueue(decodePacket(isBinary ? data : TEXT_DECODER.decode(data), binaryType));\n                    state = 0 /* READ_HEADER */;\n                }\n                if (expectedLength === 0 || expectedLength > maxPayload) {\n                    controller.enqueue(ERROR_PACKET);\n                    break;\n                }\n            }\n        }\n    });\n}\nexport const protocol = 4;\nexport { encodePacket, encodePayload, decodePacket, decodePayload };\n", "/**\n * Initialize a new `Emitter`.\n *\n * @api public\n */\n\nexport function Emitter(obj) {\n  if (obj) return mixin(obj);\n}\n\n/**\n * Mixin the emitter properties.\n *\n * @param {Object} obj\n * @return {Object}\n * @api private\n */\n\nfunction mixin(obj) {\n  for (var key in Emitter.prototype) {\n    obj[key] = Emitter.prototype[key];\n  }\n  return obj;\n}\n\n/**\n * Listen on the given `event` with `fn`.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.on =\nEmitter.prototype.addEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])\n    .push(fn);\n  return this;\n};\n\n/**\n * Adds an `event` listener that will be invoked a single\n * time then automatically removed.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.once = function(event, fn){\n  function on() {\n    this.off(event, on);\n    fn.apply(this, arguments);\n  }\n\n  on.fn = fn;\n  this.on(event, on);\n  return this;\n};\n\n/**\n * Remove the given callback for `event` or all\n * registered callbacks.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.off =\nEmitter.prototype.removeListener =\nEmitter.prototype.removeAllListeners =\nEmitter.prototype.removeEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n\n  // all\n  if (0 == arguments.length) {\n    this._callbacks = {};\n    return this;\n  }\n\n  // specific event\n  var callbacks = this._callbacks['$' + event];\n  if (!callbacks) return this;\n\n  // remove all handlers\n  if (1 == arguments.length) {\n    delete this._callbacks['$' + event];\n    return this;\n  }\n\n  // remove specific handler\n  var cb;\n  for (var i = 0; i < callbacks.length; i++) {\n    cb = callbacks[i];\n    if (cb === fn || cb.fn === fn) {\n      callbacks.splice(i, 1);\n      break;\n    }\n  }\n\n  // Remove event specific arrays for event types that no\n  // one is subscribed for to avoid memory leak.\n  if (callbacks.length === 0) {\n    delete this._callbacks['$' + event];\n  }\n\n  return this;\n};\n\n/**\n * Emit `event` with the given args.\n *\n * @param {String} event\n * @param {Mixed} ...\n * @return {Emitter}\n */\n\nEmitter.prototype.emit = function(event){\n  this._callbacks = this._callbacks || {};\n\n  var args = new Array(arguments.length - 1)\n    , callbacks = this._callbacks['$' + event];\n\n  for (var i = 1; i < arguments.length; i++) {\n    args[i - 1] = arguments[i];\n  }\n\n  if (callbacks) {\n    callbacks = callbacks.slice(0);\n    for (var i = 0, len = callbacks.length; i < len; ++i) {\n      callbacks[i].apply(this, args);\n    }\n  }\n\n  return this;\n};\n\n// alias used for reserved events (protected method)\nEmitter.prototype.emitReserved = Emitter.prototype.emit;\n\n/**\n * Return array of callbacks for `event`.\n *\n * @param {String} event\n * @return {Array}\n * @api public\n */\n\nEmitter.prototype.listeners = function(event){\n  this._callbacks = this._callbacks || {};\n  return this._callbacks['$' + event] || [];\n};\n\n/**\n * Check if this emitter has `event` handlers.\n *\n * @param {String} event\n * @return {Boolean}\n * @api public\n */\n\nEmitter.prototype.hasListeners = function(event){\n  return !! this.listeners(event).length;\n};\n", "export const globalThisShim = (() => {\n    if (typeof self !== \"undefined\") {\n        return self;\n    }\n    else if (typeof window !== \"undefined\") {\n        return window;\n    }\n    else {\n        return Function(\"return this\")();\n    }\n})();\n", "import { globalThisShim as globalThis } from \"./globalThis.js\";\nexport function pick(obj, ...attr) {\n    return attr.reduce((acc, k) => {\n        if (obj.hasOwnProperty(k)) {\n            acc[k] = obj[k];\n        }\n        return acc;\n    }, {});\n}\n// Keep a reference to the real timeout functions so they can be used when overridden\nconst NATIVE_SET_TIMEOUT = globalThis.setTimeout;\nconst NATIVE_CLEAR_TIMEOUT = globalThis.clearTimeout;\nexport function installTimerFunctions(obj, opts) {\n    if (opts.useNativeTimers) {\n        obj.setTimeoutFn = NATIVE_SET_TIMEOUT.bind(globalThis);\n        obj.clearTimeoutFn = NATIVE_CLEAR_TIMEOUT.bind(globalThis);\n    }\n    else {\n        obj.setTimeoutFn = globalThis.setTimeout.bind(globalThis);\n        obj.clearTimeoutFn = globalThis.clearTimeout.bind(globalThis);\n    }\n}\n// base64 encoded buffers are about 33% bigger (https://en.wikipedia.org/wiki/Base64)\nconst BASE64_OVERHEAD = 1.33;\n// we could also have used `new Blob([obj]).size`, but it isn't supported in IE9\nexport function byteLength(obj) {\n    if (typeof obj === \"string\") {\n        return utf8Length(obj);\n    }\n    // arraybuffer or blob\n    return Math.ceil((obj.byteLength || obj.size) * BASE64_OVERHEAD);\n}\nfunction utf8Length(str) {\n    let c = 0, length = 0;\n    for (let i = 0, l = str.length; i < l; i++) {\n        c = str.charCodeAt(i);\n        if (c < 0x80) {\n            length += 1;\n        }\n        else if (c < 0x800) {\n            length += 2;\n        }\n        else if (c < 0xd800 || c >= 0xe000) {\n            length += 3;\n        }\n        else {\n            i++;\n            length += 4;\n        }\n    }\n    return length;\n}\n", "// imported from https://github.com/galkn/querystring\n/**\n * Compiles a querystring\n * Returns string representation of the object\n *\n * @param {Object}\n * @api private\n */\nexport function encode(obj) {\n    let str = '';\n    for (let i in obj) {\n        if (obj.hasOwnProperty(i)) {\n            if (str.length)\n                str += '&';\n            str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);\n        }\n    }\n    return str;\n}\n/**\n * Parses a simple querystring into an object\n *\n * @param {String} qs\n * @api private\n */\nexport function decode(qs) {\n    let qry = {};\n    let pairs = qs.split('&');\n    for (let i = 0, l = pairs.length; i < l; i++) {\n        let pair = pairs[i].split('=');\n        qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);\n    }\n    return qry;\n}\n", "import { decodePacket } from \"engine.io-parser\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions } from \"./util.js\";\nimport { encode } from \"./contrib/parseqs.js\";\nexport class TransportError extends Error {\n    constructor(reason, description, context) {\n        super(reason);\n        this.description = description;\n        this.context = context;\n        this.type = \"TransportError\";\n    }\n}\nexport class Transport extends Emitter {\n    /**\n     * Transport abstract constructor.\n     *\n     * @param {Object} opts - options\n     * @protected\n     */\n    constructor(opts) {\n        super();\n        this.writable = false;\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.query = opts.query;\n        this.socket = opts.socket;\n    }\n    /**\n     * Emits an error.\n     *\n     * @param {String} reason\n     * @param description\n     * @param context - the error context\n     * @return {Transport} for chaining\n     * @protected\n     */\n    onError(reason, description, context) {\n        super.emitReserved(\"error\", new TransportError(reason, description, context));\n        return this;\n    }\n    /**\n     * Opens the transport.\n     */\n    open() {\n        this.readyState = \"opening\";\n        this.doOpen();\n        return this;\n    }\n    /**\n     * Closes the transport.\n     */\n    close() {\n        if (this.readyState === \"opening\" || this.readyState === \"open\") {\n            this.doClose();\n            this.onClose();\n        }\n        return this;\n    }\n    /**\n     * Sends multiple packets.\n     *\n     * @param {Array} packets\n     */\n    send(packets) {\n        if (this.readyState === \"open\") {\n            this.write(packets);\n        }\n        else {\n            // this might happen if the transport was silently closed in the beforeunload event handler\n        }\n    }\n    /**\n     * Called upon open\n     *\n     * @protected\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        this.writable = true;\n        super.emitReserved(\"open\");\n    }\n    /**\n     * Called with data.\n     *\n     * @param {String} data\n     * @protected\n     */\n    onData(data) {\n        const packet = decodePacket(data, this.socket.binaryType);\n        this.onPacket(packet);\n    }\n    /**\n     * Called with a decoded packet.\n     *\n     * @protected\n     */\n    onPacket(packet) {\n        super.emitReserved(\"packet\", packet);\n    }\n    /**\n     * Called upon close.\n     *\n     * @protected\n     */\n    onClose(details) {\n        this.readyState = \"closed\";\n        super.emitReserved(\"close\", details);\n    }\n    /**\n     * Pauses the transport, in order not to lose packets during an upgrade.\n     *\n     * @param onPause\n     */\n    pause(onPause) { }\n    createUri(schema, query = {}) {\n        return (schema +\n            \"://\" +\n            this._hostname() +\n            this._port() +\n            this.opts.path +\n            this._query(query));\n    }\n    _hostname() {\n        const hostname = this.opts.hostname;\n        return hostname.indexOf(\":\") === -1 ? hostname : \"[\" + hostname + \"]\";\n    }\n    _port() {\n        if (this.opts.port &&\n            ((this.opts.secure && Number(this.opts.port !== 443)) ||\n                (!this.opts.secure && Number(this.opts.port) !== 80))) {\n            return \":\" + this.opts.port;\n        }\n        else {\n            return \"\";\n        }\n    }\n    _query(query) {\n        const encodedQuery = encode(query);\n        return encodedQuery.length ? \"?\" + encodedQuery : \"\";\n    }\n}\n", "// imported from https://github.com/unshiftio/yeast\n'use strict';\nconst alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split(''), length = 64, map = {};\nlet seed = 0, i = 0, prev;\n/**\n * Return a string representing the specified number.\n *\n * @param {Number} num The number to convert.\n * @returns {String} The string representation of the number.\n * @api public\n */\nexport function encode(num) {\n    let encoded = '';\n    do {\n        encoded = alphabet[num % length] + encoded;\n        num = Math.floor(num / length);\n    } while (num > 0);\n    return encoded;\n}\n/**\n * Return the integer value specified by the given string.\n *\n * @param {String} str The string to convert.\n * @returns {Number} The integer value represented by the string.\n * @api public\n */\nexport function decode(str) {\n    let decoded = 0;\n    for (i = 0; i < str.length; i++) {\n        decoded = decoded * length + map[str.charAt(i)];\n    }\n    return decoded;\n}\n/**\n * Yeast: A tiny growing id generator.\n *\n * @returns {String} A unique id.\n * @api public\n */\nexport function yeast() {\n    const now = encode(+new Date());\n    if (now !== prev)\n        return seed = 0, prev = now;\n    return now + '.' + encode(seed++);\n}\n//\n// Map each character to its index.\n//\nfor (; i < length; i++)\n    map[alphabet[i]] = i;\n", "// imported from https://github.com/component/has-cors\nlet value = false;\ntry {\n    value = typeof XMLHttpRequest !== 'undefined' &&\n        'withCredentials' in new XMLHttpRequest();\n}\ncatch (err) {\n    // if XMLHttp support is disabled in IE then it will throw\n    // when trying to create\n}\nexport const hasCORS = value;\n", "// browser shim for xmlhttprequest module\nimport { hasCORS } from \"../contrib/has-cors.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nexport function XHR(opts) {\n    const xdomain = opts.xdomain;\n    // XMLHttpRequest can be disabled on IE\n    try {\n        if (\"undefined\" !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {\n            return new XMLHttpRequest();\n        }\n    }\n    catch (e) { }\n    if (!xdomain) {\n        try {\n            return new globalThis[[\"Active\"].concat(\"Object\").join(\"X\")](\"Microsoft.XMLHTTP\");\n        }\n        catch (e) { }\n    }\n}\nexport function createCookieJar() { }\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { encodePayload, decodePayload } from \"engine.io-parser\";\nimport { createCookieJar, XHR as XMLHttpRequest, } from \"./xmlhttprequest.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions, pick } from \"../util.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nfunction empty() { }\nconst hasXHR2 = (function () {\n    const xhr = new XMLHttpRequest({\n        xdomain: false,\n    });\n    return null != xhr.responseType;\n})();\nexport class Polling extends Transport {\n    /**\n     * XHR Polling constructor.\n     *\n     * @param {Object} opts\n     * @package\n     */\n    constructor(opts) {\n        super(opts);\n        this.polling = false;\n        if (typeof location !== \"undefined\") {\n            const isSSL = \"https:\" === location.protocol;\n            let port = location.port;\n            // some user agents have empty `location.port`\n            if (!port) {\n                port = isSSL ? \"443\" : \"80\";\n            }\n            this.xd =\n                (typeof location !== \"undefined\" &&\n                    opts.hostname !== location.hostname) ||\n                    port !== opts.port;\n        }\n        /**\n         * XHR supports binary\n         */\n        const forceBase64 = opts && opts.forceBase64;\n        this.supportsBinary = hasXHR2 && !forceBase64;\n        if (this.opts.withCredentials) {\n            this.cookieJar = createCookieJar();\n        }\n    }\n    get name() {\n        return \"polling\";\n    }\n    /**\n     * Opens the socket (triggers polling). We write a PING message to determine\n     * when the transport is open.\n     *\n     * @protected\n     */\n    doOpen() {\n        this.poll();\n    }\n    /**\n     * Pauses polling.\n     *\n     * @param {Function} onPause - callback upon buffers are flushed and transport is paused\n     * @package\n     */\n    pause(onPause) {\n        this.readyState = \"pausing\";\n        const pause = () => {\n            this.readyState = \"paused\";\n            onPause();\n        };\n        if (this.polling || !this.writable) {\n            let total = 0;\n            if (this.polling) {\n                total++;\n                this.once(\"pollComplete\", function () {\n                    --total || pause();\n                });\n            }\n            if (!this.writable) {\n                total++;\n                this.once(\"drain\", function () {\n                    --total || pause();\n                });\n            }\n        }\n        else {\n            pause();\n        }\n    }\n    /**\n     * Starts polling cycle.\n     *\n     * @private\n     */\n    poll() {\n        this.polling = true;\n        this.doPoll();\n        this.emitReserved(\"poll\");\n    }\n    /**\n     * Overloads onData to detect payloads.\n     *\n     * @protected\n     */\n    onData(data) {\n        const callback = (packet) => {\n            // if its the first message we consider the transport open\n            if (\"opening\" === this.readyState && packet.type === \"open\") {\n                this.onOpen();\n            }\n            // if its a close packet, we close the ongoing requests\n            if (\"close\" === packet.type) {\n                this.onClose({ description: \"transport closed by the server\" });\n                return false;\n            }\n            // otherwise bypass onData and handle the message\n            this.onPacket(packet);\n        };\n        // decode payload\n        decodePayload(data, this.socket.binaryType).forEach(callback);\n        // if an event did not trigger closing\n        if (\"closed\" !== this.readyState) {\n            // if we got data we're not polling\n            this.polling = false;\n            this.emitReserved(\"pollComplete\");\n            if (\"open\" === this.readyState) {\n                this.poll();\n            }\n            else {\n            }\n        }\n    }\n    /**\n     * For polling, send a close packet.\n     *\n     * @protected\n     */\n    doClose() {\n        const close = () => {\n            this.write([{ type: \"close\" }]);\n        };\n        if (\"open\" === this.readyState) {\n            close();\n        }\n        else {\n            // in case we're trying to close while\n            // handshaking is in progress (GH-164)\n            this.once(\"open\", close);\n        }\n    }\n    /**\n     * Writes a packets payload.\n     *\n     * @param {Array} packets - data packets\n     * @protected\n     */\n    write(packets) {\n        this.writable = false;\n        encodePayload(packets, (data) => {\n            this.doWrite(data, () => {\n                this.writable = true;\n                this.emitReserved(\"drain\");\n            });\n        });\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"https\" : \"http\";\n        const query = this.query || {};\n        // cache busting is forced\n        if (false !== this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        if (!this.supportsBinary && !query.sid) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Creates a request.\n     *\n     * @param {String} method\n     * @private\n     */\n    request(opts = {}) {\n        Object.assign(opts, { xd: this.xd, cookieJar: this.cookieJar }, this.opts);\n        return new Request(this.uri(), opts);\n    }\n    /**\n     * Sends data.\n     *\n     * @param {String} data to send.\n     * @param {Function} called upon flush.\n     * @private\n     */\n    doWrite(data, fn) {\n        const req = this.request({\n            method: \"POST\",\n            data: data,\n        });\n        req.on(\"success\", fn);\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr post error\", xhrStatus, context);\n        });\n    }\n    /**\n     * Starts a poll cycle.\n     *\n     * @private\n     */\n    doPoll() {\n        const req = this.request();\n        req.on(\"data\", this.onData.bind(this));\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr poll error\", xhrStatus, context);\n        });\n        this.pollXhr = req;\n    }\n}\nexport class Request extends Emitter {\n    /**\n     * Request constructor\n     *\n     * @param {Object} options\n     * @package\n     */\n    constructor(uri, opts) {\n        super();\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.method = opts.method || \"GET\";\n        this.uri = uri;\n        this.data = undefined !== opts.data ? opts.data : null;\n        this.create();\n    }\n    /**\n     * Creates the XHR object and sends the request.\n     *\n     * @private\n     */\n    create() {\n        var _a;\n        const opts = pick(this.opts, \"agent\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"autoUnref\");\n        opts.xdomain = !!this.opts.xd;\n        const xhr = (this.xhr = new XMLHttpRequest(opts));\n        try {\n            xhr.open(this.method, this.uri, true);\n            try {\n                if (this.opts.extraHeaders) {\n                    xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);\n                    for (let i in this.opts.extraHeaders) {\n                        if (this.opts.extraHeaders.hasOwnProperty(i)) {\n                            xhr.setRequestHeader(i, this.opts.extraHeaders[i]);\n                        }\n                    }\n                }\n            }\n            catch (e) { }\n            if (\"POST\" === this.method) {\n                try {\n                    xhr.setRequestHeader(\"Content-type\", \"text/plain;charset=UTF-8\");\n                }\n                catch (e) { }\n            }\n            try {\n                xhr.setRequestHeader(\"Accept\", \"*/*\");\n            }\n            catch (e) { }\n            (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.addCookies(xhr);\n            // ie6 check\n            if (\"withCredentials\" in xhr) {\n                xhr.withCredentials = this.opts.withCredentials;\n            }\n            if (this.opts.requestTimeout) {\n                xhr.timeout = this.opts.requestTimeout;\n            }\n            xhr.onreadystatechange = () => {\n                var _a;\n                if (xhr.readyState === 3) {\n                    (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.parseCookies(xhr);\n                }\n                if (4 !== xhr.readyState)\n                    return;\n                if (200 === xhr.status || 1223 === xhr.status) {\n                    this.onLoad();\n                }\n                else {\n                    // make sure the `error` event handler that's user-set\n                    // does not throw in the same tick and gets caught here\n                    this.setTimeoutFn(() => {\n                        this.onError(typeof xhr.status === \"number\" ? xhr.status : 0);\n                    }, 0);\n                }\n            };\n            xhr.send(this.data);\n        }\n        catch (e) {\n            // Need to defer since .create() is called directly from the constructor\n            // and thus the 'error' event can only be only bound *after* this exception\n            // occurs.  Therefore, also, we cannot throw here at all.\n            this.setTimeoutFn(() => {\n                this.onError(e);\n            }, 0);\n            return;\n        }\n        if (typeof document !== \"undefined\") {\n            this.index = Request.requestsCount++;\n            Request.requests[this.index] = this;\n        }\n    }\n    /**\n     * Called upon error.\n     *\n     * @private\n     */\n    onError(err) {\n        this.emitReserved(\"error\", err, this.xhr);\n        this.cleanup(true);\n    }\n    /**\n     * Cleans up house.\n     *\n     * @private\n     */\n    cleanup(fromError) {\n        if (\"undefined\" === typeof this.xhr || null === this.xhr) {\n            return;\n        }\n        this.xhr.onreadystatechange = empty;\n        if (fromError) {\n            try {\n                this.xhr.abort();\n            }\n            catch (e) { }\n        }\n        if (typeof document !== \"undefined\") {\n            delete Request.requests[this.index];\n        }\n        this.xhr = null;\n    }\n    /**\n     * Called upon load.\n     *\n     * @private\n     */\n    onLoad() {\n        const data = this.xhr.responseText;\n        if (data !== null) {\n            this.emitReserved(\"data\", data);\n            this.emitReserved(\"success\");\n            this.cleanup();\n        }\n    }\n    /**\n     * Aborts the request.\n     *\n     * @package\n     */\n    abort() {\n        this.cleanup();\n    }\n}\nRequest.requestsCount = 0;\nRequest.requests = {};\n/**\n * Aborts pending requests when unloading the window. This is needed to prevent\n * memory leaks (e.g. when using IE) and to ensure that no spurious error is\n * emitted.\n */\nif (typeof document !== \"undefined\") {\n    // @ts-ignore\n    if (typeof attachEvent === \"function\") {\n        // @ts-ignore\n        attachEvent(\"onunload\", unloadHandler);\n    }\n    else if (typeof addEventListener === \"function\") {\n        const terminationEvent = \"onpagehide\" in globalThis ? \"pagehide\" : \"unload\";\n        addEventListener(terminationEvent, unloadHandler, false);\n    }\n}\nfunction unloadHandler() {\n    for (let i in Request.requests) {\n        if (Request.requests.hasOwnProperty(i)) {\n            Request.requests[i].abort();\n        }\n    }\n}\n", "import { globalThisShim as globalThis } from \"../globalThis.js\";\nexport const nextTick = (() => {\n    const isPromiseAvailable = typeof Promise === \"function\" && typeof Promise.resolve === \"function\";\n    if (isPromiseAvailable) {\n        return (cb) => Promise.resolve().then(cb);\n    }\n    else {\n        return (cb, setTimeoutFn) => setTimeoutFn(cb, 0);\n    }\n})();\nexport const WebSocket = globalThis.WebSocket || globalThis.MozWebSocket;\nexport const usingBrowserWebSocket = true;\nexport const defaultBinaryType = \"arraybuffer\";\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { pick } from \"../util.js\";\nimport { nextTick, usingBrowserWebSocket, WebSocket, } from \"./websocket-constructor.js\";\nimport { encodePacket } from \"engine.io-parser\";\n// detect ReactNative environment\nconst isReactNative = typeof navigator !== \"undefined\" &&\n    typeof navigator.product === \"string\" &&\n    navigator.product.toLowerCase() === \"reactnative\";\nexport class WS extends Transport {\n    /**\n     * WebSocket transport constructor.\n     *\n     * @param {Object} opts - connection options\n     * @protected\n     */\n    constructor(opts) {\n        super(opts);\n        this.supportsBinary = !opts.forceBase64;\n    }\n    get name() {\n        return \"websocket\";\n    }\n    doOpen() {\n        if (!this.check()) {\n            // let probe timeout\n            return;\n        }\n        const uri = this.uri();\n        const protocols = this.opts.protocols;\n        // React Native only supports the 'headers' option, and will print a warning if anything else is passed\n        const opts = isReactNative\n            ? {}\n            : pick(this.opts, \"agent\", \"perMessageDeflate\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"localAddress\", \"protocolVersion\", \"origin\", \"maxPayload\", \"family\", \"checkServerIdentity\");\n        if (this.opts.extraHeaders) {\n            opts.headers = this.opts.extraHeaders;\n        }\n        try {\n            this.ws =\n                usingBrowserWebSocket && !isReactNative\n                    ? protocols\n                        ? new WebSocket(uri, protocols)\n                        : new WebSocket(uri)\n                    : new WebSocket(uri, protocols, opts);\n        }\n        catch (err) {\n            return this.emitReserved(\"error\", err);\n        }\n        this.ws.binaryType = this.socket.binaryType;\n        this.addEventListeners();\n    }\n    /**\n     * Adds event listeners to the socket\n     *\n     * @private\n     */\n    addEventListeners() {\n        this.ws.onopen = () => {\n            if (this.opts.autoUnref) {\n                this.ws._socket.unref();\n            }\n            this.onOpen();\n        };\n        this.ws.onclose = (closeEvent) => this.onClose({\n            description: \"websocket connection closed\",\n            context: closeEvent,\n        });\n        this.ws.onmessage = (ev) => this.onData(ev.data);\n        this.ws.onerror = (e) => this.onError(\"websocket error\", e);\n    }\n    write(packets) {\n        this.writable = false;\n        // encodePacket efficient as it uses WS framing\n        // no need for encodePayload\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            encodePacket(packet, this.supportsBinary, (data) => {\n                // always create a new object (GH-437)\n                const opts = {};\n                if (!usingBrowserWebSocket) {\n                    if (packet.options) {\n                        opts.compress = packet.options.compress;\n                    }\n                    if (this.opts.perMessageDeflate) {\n                        const len = \n                        // @ts-ignore\n                        \"string\" === typeof data ? Buffer.byteLength(data) : data.length;\n                        if (len < this.opts.perMessageDeflate.threshold) {\n                            opts.compress = false;\n                        }\n                    }\n                }\n                // Sometimes the websocket has already been closed but the browser didn't\n                // have a chance of informing us about it yet, in that case send will\n                // throw an error\n                try {\n                    if (usingBrowserWebSocket) {\n                        // TypeError is thrown when passing the second argument on Safari\n                        this.ws.send(data);\n                    }\n                    else {\n                        this.ws.send(data, opts);\n                    }\n                }\n                catch (e) {\n                }\n                if (lastPacket) {\n                    // fake drain\n                    // defer to next tick to allow Socket to clear writeBuffer\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        if (typeof this.ws !== \"undefined\") {\n            this.ws.close();\n            this.ws = null;\n        }\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"wss\" : \"ws\";\n        const query = this.query || {};\n        // append timestamp to URI\n        if (this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        // communicate binary support capabilities\n        if (!this.supportsBinary) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Feature detection for WebSocket.\n     *\n     * @return {Boolean} whether this transport is available.\n     * @private\n     */\n    check() {\n        return !!WebSocket;\n    }\n}\n", "import { Transport } from \"../transport.js\";\nimport { nextTick } from \"./websocket-constructor.js\";\nimport { createPacketDecoderStream, createPacketEncoderStream, } from \"engine.io-parser\";\nexport class WT extends Transport {\n    get name() {\n        return \"webtransport\";\n    }\n    doOpen() {\n        // @ts-ignore\n        if (typeof WebTransport !== \"function\") {\n            return;\n        }\n        // @ts-ignore\n        this.transport = new WebTransport(this.createUri(\"https\"), this.opts.transportOptions[this.name]);\n        this.transport.closed\n            .then(() => {\n            this.onClose();\n        })\n            .catch((err) => {\n            this.onError(\"webtransport error\", err);\n        });\n        // note: we could have used async/await, but that would require some additional polyfills\n        this.transport.ready.then(() => {\n            this.transport.createBidirectionalStream().then((stream) => {\n                const decoderStream = createPacketDecoderStream(Number.MAX_SAFE_INTEGER, this.socket.binaryType);\n                const reader = stream.readable.pipeThrough(decoderStream).getReader();\n                const encoderStream = createPacketEncoderStream();\n                encoderStream.readable.pipeTo(stream.writable);\n                this.writer = encoderStream.writable.getWriter();\n                const read = () => {\n                    reader\n                        .read()\n                        .then(({ done, value }) => {\n                        if (done) {\n                            return;\n                        }\n                        this.onPacket(value);\n                        read();\n                    })\n                        .catch((err) => {\n                    });\n                };\n                read();\n                const packet = { type: \"open\" };\n                if (this.query.sid) {\n                    packet.data = `{\"sid\":\"${this.query.sid}\"}`;\n                }\n                this.writer.write(packet).then(() => this.onOpen());\n            });\n        });\n    }\n    write(packets) {\n        this.writable = false;\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            this.writer.write(packet).then(() => {\n                if (lastPacket) {\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        var _a;\n        (_a = this.transport) === null || _a === void 0 ? void 0 : _a.close();\n    }\n}\n", "import { Polling } from \"./polling.js\";\nimport { WS } from \"./websocket.js\";\nimport { WT } from \"./webtransport.js\";\nexport const transports = {\n    websocket: WS,\n    webtransport: WT,\n    polling: Polling,\n};\n", "// imported from https://github.com/galkn/parseuri\n/**\n * Parses a URI\n *\n * Note: we could also have used the built-in URL object, but it isn't supported on all platforms.\n *\n * See:\n * - https://developer.mozilla.org/en-US/docs/Web/API/URL\n * - https://caniuse.com/url\n * - https://www.rfc-editor.org/rfc/rfc3986#appendix-B\n *\n * History of the parse() method:\n * - first commit: https://github.com/socketio/socket.io-client/commit/4ee1d5d94b3906a9c052b459f1a818b15f38f91c\n * - export into its own module: https://github.com/socketio/engine.io-client/commit/de2c561e4564efeb78f1bdb1ba39ef81b2822cb3\n * - reimport: https://github.com/socketio/engine.io-client/commit/df32277c3f6d622eec5ed09f493cae3f3391d242\n *\n * @author Steven Levithan <stevenlevithan.com> (MIT license)\n * @api private\n */\nconst re = /^(?:(?![^:@\\/?#]+:[^:@\\/]*@)(http|https|ws|wss):\\/\\/)?((?:(([^:@\\/?#]*)(?::([^:@\\/?#]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\\/?#]*)(?::(\\d*))?)(((\\/(?:[^?#](?![^?#\\/]*\\.[^?#\\/.]+(?:[?#]|$)))*\\/?)?([^?#\\/]*))(?:\\?([^#]*))?(?:#(.*))?)/;\nconst parts = [\n    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'\n];\nexport function parse(str) {\n    if (str.length > 2000) {\n        throw \"URI too long\";\n    }\n    const src = str, b = str.indexOf('['), e = str.indexOf(']');\n    if (b != -1 && e != -1) {\n        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);\n    }\n    let m = re.exec(str || ''), uri = {}, i = 14;\n    while (i--) {\n        uri[parts[i]] = m[i] || '';\n    }\n    if (b != -1 && e != -1) {\n        uri.source = src;\n        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');\n        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');\n        uri.ipv6uri = true;\n    }\n    uri.pathNames = pathNames(uri, uri['path']);\n    uri.queryKey = queryKey(uri, uri['query']);\n    return uri;\n}\nfunction pathNames(obj, path) {\n    const regx = /\\/{2,9}/g, names = path.replace(regx, \"/\").split(\"/\");\n    if (path.slice(0, 1) == '/' || path.length === 0) {\n        names.splice(0, 1);\n    }\n    if (path.slice(-1) == '/') {\n        names.splice(names.length - 1, 1);\n    }\n    return names;\n}\nfunction queryKey(uri, query) {\n    const data = {};\n    query.replace(/(?:^|&)([^&=]*)=?([^&]*)/g, function ($0, $1, $2) {\n        if ($1) {\n            data[$1] = $2;\n        }\n    });\n    return data;\n}\n", "import { transports } from \"./transports/index.js\";\nimport { installTimerFunctions, byteLength } from \"./util.js\";\nimport { decode } from \"./contrib/parseqs.js\";\nimport { parse } from \"./contrib/parseuri.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { protocol } from \"engine.io-parser\";\nimport { defaultBinaryType } from \"./transports/websocket-constructor.js\";\nexport class Socket extends Emitter {\n    /**\n     * Socket constructor.\n     *\n     * @param {String|Object} uri - uri or options\n     * @param {Object} opts - options\n     */\n    constructor(uri, opts = {}) {\n        super();\n        this.binaryType = defaultBinaryType;\n        this.writeBuffer = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = null;\n        }\n        if (uri) {\n            uri = parse(uri);\n            opts.hostname = uri.host;\n            opts.secure = uri.protocol === \"https\" || uri.protocol === \"wss\";\n            opts.port = uri.port;\n            if (uri.query)\n                opts.query = uri.query;\n        }\n        else if (opts.host) {\n            opts.hostname = parse(opts.host).host;\n        }\n        installTimerFunctions(this, opts);\n        this.secure =\n            null != opts.secure\n                ? opts.secure\n                : typeof location !== \"undefined\" && \"https:\" === location.protocol;\n        if (opts.hostname && !opts.port) {\n            // if no port is specified manually, use the protocol default\n            opts.port = this.secure ? \"443\" : \"80\";\n        }\n        this.hostname =\n            opts.hostname ||\n                (typeof location !== \"undefined\" ? location.hostname : \"localhost\");\n        this.port =\n            opts.port ||\n                (typeof location !== \"undefined\" && location.port\n                    ? location.port\n                    : this.secure\n                        ? \"443\"\n                        : \"80\");\n        this.transports = opts.transports || [\n            \"polling\",\n            \"websocket\",\n            \"webtransport\",\n        ];\n        this.writeBuffer = [];\n        this.prevBufferLen = 0;\n        this.opts = Object.assign({\n            path: \"/engine.io\",\n            agent: false,\n            withCredentials: false,\n            upgrade: true,\n            timestampParam: \"t\",\n            rememberUpgrade: false,\n            addTrailingSlash: true,\n            rejectUnauthorized: true,\n            perMessageDeflate: {\n                threshold: 1024,\n            },\n            transportOptions: {},\n            closeOnBeforeunload: false,\n        }, opts);\n        this.opts.path =\n            this.opts.path.replace(/\\/$/, \"\") +\n                (this.opts.addTrailingSlash ? \"/\" : \"\");\n        if (typeof this.opts.query === \"string\") {\n            this.opts.query = decode(this.opts.query);\n        }\n        // set on handshake\n        this.id = null;\n        this.upgrades = null;\n        this.pingInterval = null;\n        this.pingTimeout = null;\n        // set on heartbeat\n        this.pingTimeoutTimer = null;\n        if (typeof addEventListener === \"function\") {\n            if (this.opts.closeOnBeforeunload) {\n                // Firefox closes the connection when the \"beforeunload\" event is emitted but not Chrome. This event listener\n                // ensures every browser behaves the same (no \"disconnect\" event at the Socket.IO level when the page is\n                // closed/reloaded)\n                this.beforeunloadEventListener = () => {\n                    if (this.transport) {\n                        // silently close the transport\n                        this.transport.removeAllListeners();\n                        this.transport.close();\n                    }\n                };\n                addEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n            }\n            if (this.hostname !== \"localhost\") {\n                this.offlineEventListener = () => {\n                    this.onClose(\"transport close\", {\n                        description: \"network connection lost\",\n                    });\n                };\n                addEventListener(\"offline\", this.offlineEventListener, false);\n            }\n        }\n        this.open();\n    }\n    /**\n     * Creates transport of the given type.\n     *\n     * @param {String} name - transport name\n     * @return {Transport}\n     * @private\n     */\n    createTransport(name) {\n        const query = Object.assign({}, this.opts.query);\n        // append engine.io protocol identifier\n        query.EIO = protocol;\n        // transport name\n        query.transport = name;\n        // session id if we already have one\n        if (this.id)\n            query.sid = this.id;\n        const opts = Object.assign({}, this.opts, {\n            query,\n            socket: this,\n            hostname: this.hostname,\n            secure: this.secure,\n            port: this.port,\n        }, this.opts.transportOptions[name]);\n        return new transports[name](opts);\n    }\n    /**\n     * Initializes transport to use and starts probe.\n     *\n     * @private\n     */\n    open() {\n        let transport;\n        if (this.opts.rememberUpgrade &&\n            Socket.priorWebsocketSuccess &&\n            this.transports.indexOf(\"websocket\") !== -1) {\n            transport = \"websocket\";\n        }\n        else if (0 === this.transports.length) {\n            // Emit error on next tick so it can be listened to\n            this.setTimeoutFn(() => {\n                this.emitReserved(\"error\", \"No transports available\");\n            }, 0);\n            return;\n        }\n        else {\n            transport = this.transports[0];\n        }\n        this.readyState = \"opening\";\n        // Retry with the next transport if the transport is disabled (jsonp: false)\n        try {\n            transport = this.createTransport(transport);\n        }\n        catch (e) {\n            this.transports.shift();\n            this.open();\n            return;\n        }\n        transport.open();\n        this.setTransport(transport);\n    }\n    /**\n     * Sets the current transport. Disables the existing one (if any).\n     *\n     * @private\n     */\n    setTransport(transport) {\n        if (this.transport) {\n            this.transport.removeAllListeners();\n        }\n        // set up transport\n        this.transport = transport;\n        // set up transport listeners\n        transport\n            .on(\"drain\", this.onDrain.bind(this))\n            .on(\"packet\", this.onPacket.bind(this))\n            .on(\"error\", this.onError.bind(this))\n            .on(\"close\", (reason) => this.onClose(\"transport close\", reason));\n    }\n    /**\n     * Probes a transport.\n     *\n     * @param {String} name - transport name\n     * @private\n     */\n    probe(name) {\n        let transport = this.createTransport(name);\n        let failed = false;\n        Socket.priorWebsocketSuccess = false;\n        const onTransportOpen = () => {\n            if (failed)\n                return;\n            transport.send([{ type: \"ping\", data: \"probe\" }]);\n            transport.once(\"packet\", (msg) => {\n                if (failed)\n                    return;\n                if (\"pong\" === msg.type && \"probe\" === msg.data) {\n                    this.upgrading = true;\n                    this.emitReserved(\"upgrading\", transport);\n                    if (!transport)\n                        return;\n                    Socket.priorWebsocketSuccess = \"websocket\" === transport.name;\n                    this.transport.pause(() => {\n                        if (failed)\n                            return;\n                        if (\"closed\" === this.readyState)\n                            return;\n                        cleanup();\n                        this.setTransport(transport);\n                        transport.send([{ type: \"upgrade\" }]);\n                        this.emitReserved(\"upgrade\", transport);\n                        transport = null;\n                        this.upgrading = false;\n                        this.flush();\n                    });\n                }\n                else {\n                    const err = new Error(\"probe error\");\n                    // @ts-ignore\n                    err.transport = transport.name;\n                    this.emitReserved(\"upgradeError\", err);\n                }\n            });\n        };\n        function freezeTransport() {\n            if (failed)\n                return;\n            // Any callback called by transport should be ignored since now\n            failed = true;\n            cleanup();\n            transport.close();\n            transport = null;\n        }\n        // Handle any error that happens while probing\n        const onerror = (err) => {\n            const error = new Error(\"probe error: \" + err);\n            // @ts-ignore\n            error.transport = transport.name;\n            freezeTransport();\n            this.emitReserved(\"upgradeError\", error);\n        };\n        function onTransportClose() {\n            onerror(\"transport closed\");\n        }\n        // When the socket is closed while we're probing\n        function onclose() {\n            onerror(\"socket closed\");\n        }\n        // When the socket is upgraded while we're probing\n        function onupgrade(to) {\n            if (transport && to.name !== transport.name) {\n                freezeTransport();\n            }\n        }\n        // Remove all listeners on the transport and on self\n        const cleanup = () => {\n            transport.removeListener(\"open\", onTransportOpen);\n            transport.removeListener(\"error\", onerror);\n            transport.removeListener(\"close\", onTransportClose);\n            this.off(\"close\", onclose);\n            this.off(\"upgrading\", onupgrade);\n        };\n        transport.once(\"open\", onTransportOpen);\n        transport.once(\"error\", onerror);\n        transport.once(\"close\", onTransportClose);\n        this.once(\"close\", onclose);\n        this.once(\"upgrading\", onupgrade);\n        if (this.upgrades.indexOf(\"webtransport\") !== -1 &&\n            name !== \"webtransport\") {\n            // favor WebTransport\n            this.setTimeoutFn(() => {\n                if (!failed) {\n                    transport.open();\n                }\n            }, 200);\n        }\n        else {\n            transport.open();\n        }\n    }\n    /**\n     * Called when connection is deemed open.\n     *\n     * @private\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        Socket.priorWebsocketSuccess = \"websocket\" === this.transport.name;\n        this.emitReserved(\"open\");\n        this.flush();\n        // we check for `readyState` in case an `open`\n        // listener already closed the socket\n        if (\"open\" === this.readyState && this.opts.upgrade) {\n            let i = 0;\n            const l = this.upgrades.length;\n            for (; i < l; i++) {\n                this.probe(this.upgrades[i]);\n            }\n        }\n    }\n    /**\n     * Handles a packet.\n     *\n     * @private\n     */\n    onPacket(packet) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            this.emitReserved(\"packet\", packet);\n            // Socket is live - any packet counts\n            this.emitReserved(\"heartbeat\");\n            this.resetPingTimeout();\n            switch (packet.type) {\n                case \"open\":\n                    this.onHandshake(JSON.parse(packet.data));\n                    break;\n                case \"ping\":\n                    this.sendPacket(\"pong\");\n                    this.emitReserved(\"ping\");\n                    this.emitReserved(\"pong\");\n                    break;\n                case \"error\":\n                    const err = new Error(\"server error\");\n                    // @ts-ignore\n                    err.code = packet.data;\n                    this.onError(err);\n                    break;\n                case \"message\":\n                    this.emitReserved(\"data\", packet.data);\n                    this.emitReserved(\"message\", packet.data);\n                    break;\n            }\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon handshake completion.\n     *\n     * @param {Object} data - handshake obj\n     * @private\n     */\n    onHandshake(data) {\n        this.emitReserved(\"handshake\", data);\n        this.id = data.sid;\n        this.transport.query.sid = data.sid;\n        this.upgrades = this.filterUpgrades(data.upgrades);\n        this.pingInterval = data.pingInterval;\n        this.pingTimeout = data.pingTimeout;\n        this.maxPayload = data.maxPayload;\n        this.onOpen();\n        // In case open handler closes socket\n        if (\"closed\" === this.readyState)\n            return;\n        this.resetPingTimeout();\n    }\n    /**\n     * Sets and resets ping timeout timer based on server pings.\n     *\n     * @private\n     */\n    resetPingTimeout() {\n        this.clearTimeoutFn(this.pingTimeoutTimer);\n        this.pingTimeoutTimer = this.setTimeoutFn(() => {\n            this.onClose(\"ping timeout\");\n        }, this.pingInterval + this.pingTimeout);\n        if (this.opts.autoUnref) {\n            this.pingTimeoutTimer.unref();\n        }\n    }\n    /**\n     * Called on `drain` event\n     *\n     * @private\n     */\n    onDrain() {\n        this.writeBuffer.splice(0, this.prevBufferLen);\n        // setting prevBufferLen = 0 is very important\n        // for example, when upgrading, upgrade packet is sent over,\n        // and a nonzero prevBufferLen could cause problems on `drain`\n        this.prevBufferLen = 0;\n        if (0 === this.writeBuffer.length) {\n            this.emitReserved(\"drain\");\n        }\n        else {\n            this.flush();\n        }\n    }\n    /**\n     * Flush write buffers.\n     *\n     * @private\n     */\n    flush() {\n        if (\"closed\" !== this.readyState &&\n            this.transport.writable &&\n            !this.upgrading &&\n            this.writeBuffer.length) {\n            const packets = this.getWritablePackets();\n            this.transport.send(packets);\n            // keep track of current length of writeBuffer\n            // splice writeBuffer and callbackBuffer on `drain`\n            this.prevBufferLen = packets.length;\n            this.emitReserved(\"flush\");\n        }\n    }\n    /**\n     * Ensure the encoded size of the writeBuffer is below the maxPayload value sent by the server (only for HTTP\n     * long-polling)\n     *\n     * @private\n     */\n    getWritablePackets() {\n        const shouldCheckPayloadSize = this.maxPayload &&\n            this.transport.name === \"polling\" &&\n            this.writeBuffer.length > 1;\n        if (!shouldCheckPayloadSize) {\n            return this.writeBuffer;\n        }\n        let payloadSize = 1; // first packet type\n        for (let i = 0; i < this.writeBuffer.length; i++) {\n            const data = this.writeBuffer[i].data;\n            if (data) {\n                payloadSize += byteLength(data);\n            }\n            if (i > 0 && payloadSize > this.maxPayload) {\n                return this.writeBuffer.slice(0, i);\n            }\n            payloadSize += 2; // separator + packet type\n        }\n        return this.writeBuffer;\n    }\n    /**\n     * Sends a message.\n     *\n     * @param {String} msg - message.\n     * @param {Object} options.\n     * @param {Function} callback function.\n     * @return {Socket} for chaining.\n     */\n    write(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    send(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param {String} type: packet type.\n     * @param {String} data.\n     * @param {Object} options.\n     * @param {Function} fn - callback function.\n     * @private\n     */\n    sendPacket(type, data, options, fn) {\n        if (\"function\" === typeof data) {\n            fn = data;\n            data = undefined;\n        }\n        if (\"function\" === typeof options) {\n            fn = options;\n            options = null;\n        }\n        if (\"closing\" === this.readyState || \"closed\" === this.readyState) {\n            return;\n        }\n        options = options || {};\n        options.compress = false !== options.compress;\n        const packet = {\n            type: type,\n            data: data,\n            options: options,\n        };\n        this.emitReserved(\"packetCreate\", packet);\n        this.writeBuffer.push(packet);\n        if (fn)\n            this.once(\"flush\", fn);\n        this.flush();\n    }\n    /**\n     * Closes the connection.\n     */\n    close() {\n        const close = () => {\n            this.onClose(\"forced close\");\n            this.transport.close();\n        };\n        const cleanupAndClose = () => {\n            this.off(\"upgrade\", cleanupAndClose);\n            this.off(\"upgradeError\", cleanupAndClose);\n            close();\n        };\n        const waitForUpgrade = () => {\n            // wait for upgrade to finish since we can't send packets while pausing a transport\n            this.once(\"upgrade\", cleanupAndClose);\n            this.once(\"upgradeError\", cleanupAndClose);\n        };\n        if (\"opening\" === this.readyState || \"open\" === this.readyState) {\n            this.readyState = \"closing\";\n            if (this.writeBuffer.length) {\n                this.once(\"drain\", () => {\n                    if (this.upgrading) {\n                        waitForUpgrade();\n                    }\n                    else {\n                        close();\n                    }\n                });\n            }\n            else if (this.upgrading) {\n                waitForUpgrade();\n            }\n            else {\n                close();\n            }\n        }\n        return this;\n    }\n    /**\n     * Called upon transport error\n     *\n     * @private\n     */\n    onError(err) {\n        Socket.priorWebsocketSuccess = false;\n        this.emitReserved(\"error\", err);\n        this.onClose(\"transport error\", err);\n    }\n    /**\n     * Called upon transport close.\n     *\n     * @private\n     */\n    onClose(reason, description) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            // clear timers\n            this.clearTimeoutFn(this.pingTimeoutTimer);\n            // stop event from firing again for transport\n            this.transport.removeAllListeners(\"close\");\n            // ensure transport won't stay open\n            this.transport.close();\n            // ignore further transport communication\n            this.transport.removeAllListeners();\n            if (typeof removeEventListener === \"function\") {\n                removeEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n                removeEventListener(\"offline\", this.offlineEventListener, false);\n            }\n            // set ready state\n            this.readyState = \"closed\";\n            // clear session id\n            this.id = null;\n            // emit close event\n            this.emitReserved(\"close\", reason, description);\n            // clean buffers after, so users can still\n            // grab the buffers on `close` event\n            this.writeBuffer = [];\n            this.prevBufferLen = 0;\n        }\n    }\n    /**\n     * Filters upgrades, returning only those matching client transports.\n     *\n     * @param {Array} upgrades - server upgrades\n     * @private\n     */\n    filterUpgrades(upgrades) {\n        const filteredUpgrades = [];\n        let i = 0;\n        const j = upgrades.length;\n        for (; i < j; i++) {\n            if (~this.transports.indexOf(upgrades[i]))\n                filteredUpgrades.push(upgrades[i]);\n        }\n        return filteredUpgrades;\n    }\n}\nSocket.protocol = protocol;\n", "import { Socket } from \"./socket.js\";\nexport { Socket };\nexport const protocol = Socket.protocol;\nexport { Transport, TransportError } from \"./transport.js\";\nexport { transports } from \"./transports/index.js\";\nexport { installTimerFunctions } from \"./util.js\";\nexport { parse } from \"./contrib/parseuri.js\";\nexport { nextTick } from \"./transports/websocket-constructor.js\";\n", "import { parse } from \"engine.io-client\";\n/**\n * URL parser.\n *\n * @param uri - url\n * @param path - the request path of the connection\n * @param loc - An object meant to mimic window.location.\n *        Defaults to window.location.\n * @public\n */\nexport function url(uri, path = \"\", loc) {\n    let obj = uri;\n    // default to window.location\n    loc = loc || (typeof location !== \"undefined\" && location);\n    if (null == uri)\n        uri = loc.protocol + \"//\" + loc.host;\n    // relative path support\n    if (typeof uri === \"string\") {\n        if (\"/\" === uri.charAt(0)) {\n            if (\"/\" === uri.charAt(1)) {\n                uri = loc.protocol + uri;\n            }\n            else {\n                uri = loc.host + uri;\n            }\n        }\n        if (!/^(https?|wss?):\\/\\//.test(uri)) {\n            if (\"undefined\" !== typeof loc) {\n                uri = loc.protocol + \"//\" + uri;\n            }\n            else {\n                uri = \"https://\" + uri;\n            }\n        }\n        // parse\n        obj = parse(uri);\n    }\n    // make sure we treat `localhost:80` and `localhost` equally\n    if (!obj.port) {\n        if (/^(http|ws)$/.test(obj.protocol)) {\n            obj.port = \"80\";\n        }\n        else if (/^(http|ws)s$/.test(obj.protocol)) {\n            obj.port = \"443\";\n        }\n    }\n    obj.path = obj.path || \"/\";\n    const ipv6 = obj.host.indexOf(\":\") !== -1;\n    const host = ipv6 ? \"[\" + obj.host + \"]\" : obj.host;\n    // define unique id\n    obj.id = obj.protocol + \"://\" + host + \":\" + obj.port + path;\n    // define href\n    obj.href =\n        obj.protocol +\n            \"://\" +\n            host +\n            (loc && loc.port === obj.port ? \"\" : \":\" + obj.port);\n    return obj;\n}\n", "import { Emitter } from \"@socket.io/component-emitter\";\nimport { deconstructPacket, reconstructPacket } from \"./binary.js\";\nimport { isBinary, hasBinary } from \"./is-binary.js\";\n/**\n * These strings must not be used as event names, as they have a special meaning.\n */\nconst RESERVED_EVENTS = [\n    \"connect\",\n    \"connect_error\",\n    \"disconnect\",\n    \"disconnecting\",\n    \"newListener\",\n    \"removeListener\", // used by the Node.js EventEmitter\n];\n/**\n * Protocol version.\n *\n * @public\n */\nexport const protocol = 5;\nexport var PacketType;\n(function (PacketType) {\n    PacketType[PacketType[\"CONNECT\"] = 0] = \"CONNECT\";\n    PacketType[PacketType[\"DISCONNECT\"] = 1] = \"DISCONNECT\";\n    PacketType[PacketType[\"EVENT\"] = 2] = \"EVENT\";\n    PacketType[PacketType[\"ACK\"] = 3] = \"ACK\";\n    PacketType[PacketType[\"CONNECT_ERROR\"] = 4] = \"CONNECT_ERROR\";\n    PacketType[PacketType[\"BINARY_EVENT\"] = 5] = \"BINARY_EVENT\";\n    PacketType[PacketType[\"BINARY_ACK\"] = 6] = \"BINARY_ACK\";\n})(PacketType || (PacketType = {}));\n/**\n * A socket.io Encoder instance\n */\nexport class Encoder {\n    /**\n     * Encoder constructor\n     *\n     * @param {function} replacer - custom replacer to pass down to JSON.parse\n     */\n    constructor(replacer) {\n        this.replacer = replacer;\n    }\n    /**\n     * Encode a packet as a single string if non-binary, or as a\n     * buffer sequence, depending on packet type.\n     *\n     * @param {Object} obj - packet object\n     */\n    encode(obj) {\n        if (obj.type === PacketType.EVENT || obj.type === PacketType.ACK) {\n            if (hasBinary(obj)) {\n                return this.encodeAsBinary({\n                    type: obj.type === PacketType.EVENT\n                        ? PacketType.BINARY_EVENT\n                        : PacketType.BINARY_ACK,\n                    nsp: obj.nsp,\n                    data: obj.data,\n                    id: obj.id,\n                });\n            }\n        }\n        return [this.encodeAsString(obj)];\n    }\n    /**\n     * Encode packet as string.\n     */\n    encodeAsString(obj) {\n        // first is type\n        let str = \"\" + obj.type;\n        // attachments if we have them\n        if (obj.type === PacketType.BINARY_EVENT ||\n            obj.type === PacketType.BINARY_ACK) {\n            str += obj.attachments + \"-\";\n        }\n        // if we have a namespace other than `/`\n        // we append it followed by a comma `,`\n        if (obj.nsp && \"/\" !== obj.nsp) {\n            str += obj.nsp + \",\";\n        }\n        // immediately followed by the id\n        if (null != obj.id) {\n            str += obj.id;\n        }\n        // json data\n        if (null != obj.data) {\n            str += JSON.stringify(obj.data, this.replacer);\n        }\n        return str;\n    }\n    /**\n     * Encode packet as 'buffer sequence' by removing blobs, and\n     * deconstructing packet into object with placeholders and\n     * a list of buffers.\n     */\n    encodeAsBinary(obj) {\n        const deconstruction = deconstructPacket(obj);\n        const pack = this.encodeAsString(deconstruction.packet);\n        const buffers = deconstruction.buffers;\n        buffers.unshift(pack); // add packet info to beginning of data list\n        return buffers; // write all the buffers\n    }\n}\n// see https://stackoverflow.com/questions/8511281/check-if-a-value-is-an-object-in-javascript\nfunction isObject(value) {\n    return Object.prototype.toString.call(value) === \"[object Object]\";\n}\n/**\n * A socket.io Decoder instance\n *\n * @return {Object} decoder\n */\nexport class Decoder extends Emitter {\n    /**\n     * Decoder constructor\n     *\n     * @param {function} reviver - custom reviver to pass down to JSON.stringify\n     */\n    constructor(reviver) {\n        super();\n        this.reviver = reviver;\n    }\n    /**\n     * Decodes an encoded packet string into packet JSON.\n     *\n     * @param {String} obj - encoded packet\n     */\n    add(obj) {\n        let packet;\n        if (typeof obj === \"string\") {\n            if (this.reconstructor) {\n                throw new Error(\"got plaintext data when reconstructing a packet\");\n            }\n            packet = this.decodeString(obj);\n            const isBinaryEvent = packet.type === PacketType.BINARY_EVENT;\n            if (isBinaryEvent || packet.type === PacketType.BINARY_ACK) {\n                packet.type = isBinaryEvent ? PacketType.EVENT : PacketType.ACK;\n                // binary packet's json\n                this.reconstructor = new BinaryReconstructor(packet);\n                // no attachments, labeled binary but no binary data to follow\n                if (packet.attachments === 0) {\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n            else {\n                // non-binary full packet\n                super.emitReserved(\"decoded\", packet);\n            }\n        }\n        else if (isBinary(obj) || obj.base64) {\n            // raw binary data\n            if (!this.reconstructor) {\n                throw new Error(\"got binary data when not reconstructing a packet\");\n            }\n            else {\n                packet = this.reconstructor.takeBinaryData(obj);\n                if (packet) {\n                    // received final buffer\n                    this.reconstructor = null;\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n        }\n        else {\n            throw new Error(\"Unknown type: \" + obj);\n        }\n    }\n    /**\n     * Decode a packet String (JSON data)\n     *\n     * @param {String} str\n     * @return {Object} packet\n     */\n    decodeString(str) {\n        let i = 0;\n        // look up type\n        const p = {\n            type: Number(str.charAt(0)),\n        };\n        if (PacketType[p.type] === undefined) {\n            throw new Error(\"unknown packet type \" + p.type);\n        }\n        // look up attachments if type binary\n        if (p.type === PacketType.BINARY_EVENT ||\n            p.type === PacketType.BINARY_ACK) {\n            const start = i + 1;\n            while (str.charAt(++i) !== \"-\" && i != str.length) { }\n            const buf = str.substring(start, i);\n            if (buf != Number(buf) || str.charAt(i) !== \"-\") {\n                throw new Error(\"Illegal attachments\");\n            }\n            p.attachments = Number(buf);\n        }\n        // look up namespace (if any)\n        if (\"/\" === str.charAt(i + 1)) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (\",\" === c)\n                    break;\n                if (i === str.length)\n                    break;\n            }\n            p.nsp = str.substring(start, i);\n        }\n        else {\n            p.nsp = \"/\";\n        }\n        // look up id\n        const next = str.charAt(i + 1);\n        if (\"\" !== next && Number(next) == next) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (null == c || Number(c) != c) {\n                    --i;\n                    break;\n                }\n                if (i === str.length)\n                    break;\n            }\n            p.id = Number(str.substring(start, i + 1));\n        }\n        // look up json data\n        if (str.charAt(++i)) {\n            const payload = this.tryParse(str.substr(i));\n            if (Decoder.isPayloadValid(p.type, payload)) {\n                p.data = payload;\n            }\n            else {\n                throw new Error(\"invalid payload\");\n            }\n        }\n        return p;\n    }\n    tryParse(str) {\n        try {\n            return JSON.parse(str, this.reviver);\n        }\n        catch (e) {\n            return false;\n        }\n    }\n    static isPayloadValid(type, payload) {\n        switch (type) {\n            case PacketType.CONNECT:\n                return isObject(payload);\n            case PacketType.DISCONNECT:\n                return payload === undefined;\n            case PacketType.CONNECT_ERROR:\n                return typeof payload === \"string\" || isObject(payload);\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                return (Array.isArray(payload) &&\n                    (typeof payload[0] === \"number\" ||\n                        (typeof payload[0] === \"string\" &&\n                            RESERVED_EVENTS.indexOf(payload[0]) === -1)));\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                return Array.isArray(payload);\n        }\n    }\n    /**\n     * Deallocates a parser's resources\n     */\n    destroy() {\n        if (this.reconstructor) {\n            this.reconstructor.finishedReconstruction();\n            this.reconstructor = null;\n        }\n    }\n}\n/**\n * A manager of a binary event's 'buffer sequence'. Should\n * be constructed whenever a packet of type BINARY_EVENT is\n * decoded.\n *\n * @param {Object} packet\n * @return {BinaryReconstructor} initialized reconstructor\n */\nclass BinaryReconstructor {\n    constructor(packet) {\n        this.packet = packet;\n        this.buffers = [];\n        this.reconPack = packet;\n    }\n    /**\n     * Method to be called when binary data received from connection\n     * after a BINARY_EVENT packet.\n     *\n     * @param {Buffer | ArrayBuffer} binData - the raw binary data received\n     * @return {null | Object} returns null if more binary data is expected or\n     *   a reconstructed packet object if all buffers have been received.\n     */\n    takeBinaryData(binData) {\n        this.buffers.push(binData);\n        if (this.buffers.length === this.reconPack.attachments) {\n            // done with buffer list\n            const packet = reconstructPacket(this.reconPack, this.buffers);\n            this.finishedReconstruction();\n            return packet;\n        }\n        return null;\n    }\n    /**\n     * Cleans up binary packet reconstruction variables.\n     */\n    finishedReconstruction() {\n        this.reconPack = null;\n        this.buffers = [];\n    }\n}\n", "const withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nconst isView = (obj) => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj.buffer instanceof ArrayBuffer;\n};\nconst toString = Object.prototype.toString;\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeFile = typeof File === \"function\" ||\n    (typeof File !== \"undefined\" &&\n        toString.call(File) === \"[object FileConstructor]\");\n/**\n * Returns true if obj is a Buffer, an ArrayBuffer, a Blob or a File.\n *\n * @private\n */\nexport function isBinary(obj) {\n    return ((withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj))) ||\n        (withNativeBlob && obj instanceof Blob) ||\n        (withNativeFile && obj instanceof File));\n}\nexport function hasBinary(obj, toJSON) {\n    if (!obj || typeof obj !== \"object\") {\n        return false;\n    }\n    if (Array.isArray(obj)) {\n        for (let i = 0, l = obj.length; i < l; i++) {\n            if (hasBinary(obj[i])) {\n                return true;\n            }\n        }\n        return false;\n    }\n    if (isBinary(obj)) {\n        return true;\n    }\n    if (obj.toJSON &&\n        typeof obj.toJSON === \"function\" &&\n        arguments.length === 1) {\n        return hasBinary(obj.toJSON(), true);\n    }\n    for (const key in obj) {\n        if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {\n            return true;\n        }\n    }\n    return false;\n}\n", "import { isBinary } from \"./is-binary.js\";\n/**\n * Replaces every Buffer | ArrayBuffer | Blob | File in packet with a numbered placeholder.\n *\n * @param {Object} packet - socket.io event packet\n * @return {Object} with deconstructed packet and list of buffers\n * @public\n */\nexport function deconstructPacket(packet) {\n    const buffers = [];\n    const packetData = packet.data;\n    const pack = packet;\n    pack.data = _deconstructPacket(packetData, buffers);\n    pack.attachments = buffers.length; // number of binary 'attachments'\n    return { packet: pack, buffers: buffers };\n}\nfunction _deconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (isBinary(data)) {\n        const placeholder = { _placeholder: true, num: buffers.length };\n        buffers.push(data);\n        return placeholder;\n    }\n    else if (Array.isArray(data)) {\n        const newData = new Array(data.length);\n        for (let i = 0; i < data.length; i++) {\n            newData[i] = _deconstructPacket(data[i], buffers);\n        }\n        return newData;\n    }\n    else if (typeof data === \"object\" && !(data instanceof Date)) {\n        const newData = {};\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                newData[key] = _deconstructPacket(data[key], buffers);\n            }\n        }\n        return newData;\n    }\n    return data;\n}\n/**\n * Reconstructs a binary packet from its placeholder packet and buffers\n *\n * @param {Object} packet - event packet with placeholders\n * @param {Array} buffers - binary buffers to put in placeholder positions\n * @return {Object} reconstructed packet\n * @public\n */\nexport function reconstructPacket(packet, buffers) {\n    packet.data = _reconstructPacket(packet.data, buffers);\n    delete packet.attachments; // no longer useful\n    return packet;\n}\nfunction _reconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (data && data._placeholder === true) {\n        const isIndexValid = typeof data.num === \"number\" &&\n            data.num >= 0 &&\n            data.num < buffers.length;\n        if (isIndexValid) {\n            return buffers[data.num]; // appropriate buffer (should be natural order anyway)\n        }\n        else {\n            throw new Error(\"illegal attachments\");\n        }\n    }\n    else if (Array.isArray(data)) {\n        for (let i = 0; i < data.length; i++) {\n            data[i] = _reconstructPacket(data[i], buffers);\n        }\n    }\n    else if (typeof data === \"object\") {\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                data[key] = _reconstructPacket(data[key], buffers);\n            }\n        }\n    }\n    return data;\n}\n", "export function on(obj, ev, fn) {\n    obj.on(ev, fn);\n    return function subDestroy() {\n        obj.off(ev, fn);\n    };\n}\n", "import { PacketType } from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\n/**\n * Internal events.\n * These events can't be emitted by the user.\n */\nconst RESERVED_EVENTS = Object.freeze({\n    connect: 1,\n    connect_error: 1,\n    disconnect: 1,\n    disconnecting: 1,\n    // EventEmitter reserved events: https://nodejs.org/api/events.html#events_event_newlistener\n    newListener: 1,\n    removeListener: 1,\n});\n/**\n * A Socket is the fundamental class for interacting with the server.\n *\n * A Socket belongs to a certain Namespace (by default /) and uses an underlying {@link Manager} to communicate.\n *\n * @example\n * const socket = io();\n *\n * socket.on(\"connect\", () => {\n *   console.log(\"connected\");\n * });\n *\n * // send an event to the server\n * socket.emit(\"foo\", \"bar\");\n *\n * socket.on(\"foobar\", () => {\n *   // an event was received from the server\n * });\n *\n * // upon disconnection\n * socket.on(\"disconnect\", (reason) => {\n *   console.log(`disconnected due to ${reason}`);\n * });\n */\nexport class Socket extends Emitter {\n    /**\n     * `Socket` constructor.\n     */\n    constructor(io, nsp, opts) {\n        super();\n        /**\n         * Whether the socket is currently connected to the server.\n         *\n         * @example\n         * const socket = io();\n         *\n         * socket.on(\"connect\", () => {\n         *   console.log(socket.connected); // true\n         * });\n         *\n         * socket.on(\"disconnect\", () => {\n         *   console.log(socket.connected); // false\n         * });\n         */\n        this.connected = false;\n        /**\n         * Whether the connection state was recovered after a temporary disconnection. In that case, any missed packets will\n         * be transmitted by the server.\n         */\n        this.recovered = false;\n        /**\n         * Buffer for packets received before the CONNECT packet\n         */\n        this.receiveBuffer = [];\n        /**\n         * Buffer for packets that will be sent once the socket is connected\n         */\n        this.sendBuffer = [];\n        /**\n         * The queue of packets to be sent with retry in case of failure.\n         *\n         * Packets are sent one by one, each waiting for the server acknowledgement, in order to guarantee the delivery order.\n         * @private\n         */\n        this._queue = [];\n        /**\n         * A sequence to generate the ID of the {@link QueuedPacket}.\n         * @private\n         */\n        this._queueSeq = 0;\n        this.ids = 0;\n        this.acks = {};\n        this.flags = {};\n        this.io = io;\n        this.nsp = nsp;\n        if (opts && opts.auth) {\n            this.auth = opts.auth;\n        }\n        this._opts = Object.assign({}, opts);\n        if (this.io._autoConnect)\n            this.open();\n    }\n    /**\n     * Whether the socket is currently disconnected\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"connect\", () => {\n     *   console.log(socket.disconnected); // false\n     * });\n     *\n     * socket.on(\"disconnect\", () => {\n     *   console.log(socket.disconnected); // true\n     * });\n     */\n    get disconnected() {\n        return !this.connected;\n    }\n    /**\n     * Subscribe to open, close and packet events\n     *\n     * @private\n     */\n    subEvents() {\n        if (this.subs)\n            return;\n        const io = this.io;\n        this.subs = [\n            on(io, \"open\", this.onopen.bind(this)),\n            on(io, \"packet\", this.onpacket.bind(this)),\n            on(io, \"error\", this.onerror.bind(this)),\n            on(io, \"close\", this.onclose.bind(this)),\n        ];\n    }\n    /**\n     * Whether the Socket will try to reconnect when its Manager connects or reconnects.\n     *\n     * @example\n     * const socket = io();\n     *\n     * console.log(socket.active); // true\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   if (reason === \"io server disconnect\") {\n     *     // the disconnection was initiated by the server, you need to manually reconnect\n     *     console.log(socket.active); // false\n     *   }\n     *   // else the socket will automatically try to reconnect\n     *   console.log(socket.active); // true\n     * });\n     */\n    get active() {\n        return !!this.subs;\n    }\n    /**\n     * \"Opens\" the socket.\n     *\n     * @example\n     * const socket = io({\n     *   autoConnect: false\n     * });\n     *\n     * socket.connect();\n     */\n    connect() {\n        if (this.connected)\n            return this;\n        this.subEvents();\n        if (!this.io[\"_reconnecting\"])\n            this.io.open(); // ensure open\n        if (\"open\" === this.io._readyState)\n            this.onopen();\n        return this;\n    }\n    /**\n     * Alias for {@link connect()}.\n     */\n    open() {\n        return this.connect();\n    }\n    /**\n     * Sends a `message` event.\n     *\n     * This method mimics the WebSocket.send() method.\n     *\n     * @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send\n     *\n     * @example\n     * socket.send(\"hello\");\n     *\n     * // this is equivalent to\n     * socket.emit(\"message\", \"hello\");\n     *\n     * @return self\n     */\n    send(...args) {\n        args.unshift(\"message\");\n        this.emit.apply(this, args);\n        return this;\n    }\n    /**\n     * Override `emit`.\n     * If the event is in `events`, it's emitted normally.\n     *\n     * @example\n     * socket.emit(\"hello\", \"world\");\n     *\n     * // all serializable datastructures are supported (no need to call JSON.stringify)\n     * socket.emit(\"hello\", 1, \"2\", { 3: [\"4\"], 5: Uint8Array.from([6]) });\n     *\n     * // with an acknowledgement from the server\n     * socket.emit(\"hello\", \"world\", (val) => {\n     *   // ...\n     * });\n     *\n     * @return self\n     */\n    emit(ev, ...args) {\n        if (RESERVED_EVENTS.hasOwnProperty(ev)) {\n            throw new Error('\"' + ev.toString() + '\" is a reserved event name');\n        }\n        args.unshift(ev);\n        if (this._opts.retries && !this.flags.fromQueue && !this.flags.volatile) {\n            this._addToQueue(args);\n            return this;\n        }\n        const packet = {\n            type: PacketType.EVENT,\n            data: args,\n        };\n        packet.options = {};\n        packet.options.compress = this.flags.compress !== false;\n        // event ack callback\n        if (\"function\" === typeof args[args.length - 1]) {\n            const id = this.ids++;\n            const ack = args.pop();\n            this._registerAckCallback(id, ack);\n            packet.id = id;\n        }\n        const isTransportWritable = this.io.engine &&\n            this.io.engine.transport &&\n            this.io.engine.transport.writable;\n        const discardPacket = this.flags.volatile && (!isTransportWritable || !this.connected);\n        if (discardPacket) {\n        }\n        else if (this.connected) {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        }\n        else {\n            this.sendBuffer.push(packet);\n        }\n        this.flags = {};\n        return this;\n    }\n    /**\n     * @private\n     */\n    _registerAckCallback(id, ack) {\n        var _a;\n        const timeout = (_a = this.flags.timeout) !== null && _a !== void 0 ? _a : this._opts.ackTimeout;\n        if (timeout === undefined) {\n            this.acks[id] = ack;\n            return;\n        }\n        // @ts-ignore\n        const timer = this.io.setTimeoutFn(() => {\n            delete this.acks[id];\n            for (let i = 0; i < this.sendBuffer.length; i++) {\n                if (this.sendBuffer[i].id === id) {\n                    this.sendBuffer.splice(i, 1);\n                }\n            }\n            ack.call(this, new Error(\"operation has timed out\"));\n        }, timeout);\n        this.acks[id] = (...args) => {\n            // @ts-ignore\n            this.io.clearTimeoutFn(timer);\n            ack.apply(this, [null, ...args]);\n        };\n    }\n    /**\n     * Emits an event and waits for an acknowledgement\n     *\n     * @example\n     * // without timeout\n     * const response = await socket.emitWithAck(\"hello\", \"world\");\n     *\n     * // with a specific timeout\n     * try {\n     *   const response = await socket.timeout(1000).emitWithAck(\"hello\", \"world\");\n     * } catch (err) {\n     *   // the server did not acknowledge the event in the given delay\n     * }\n     *\n     * @return a Promise that will be fulfilled when the server acknowledges the event\n     */\n    emitWithAck(ev, ...args) {\n        // the timeout flag is optional\n        const withErr = this.flags.timeout !== undefined || this._opts.ackTimeout !== undefined;\n        return new Promise((resolve, reject) => {\n            args.push((arg1, arg2) => {\n                if (withErr) {\n                    return arg1 ? reject(arg1) : resolve(arg2);\n                }\n                else {\n                    return resolve(arg1);\n                }\n            });\n            this.emit(ev, ...args);\n        });\n    }\n    /**\n     * Add the packet to the queue.\n     * @param args\n     * @private\n     */\n    _addToQueue(args) {\n        let ack;\n        if (typeof args[args.length - 1] === \"function\") {\n            ack = args.pop();\n        }\n        const packet = {\n            id: this._queueSeq++,\n            tryCount: 0,\n            pending: false,\n            args,\n            flags: Object.assign({ fromQueue: true }, this.flags),\n        };\n        args.push((err, ...responseArgs) => {\n            if (packet !== this._queue[0]) {\n                // the packet has already been acknowledged\n                return;\n            }\n            const hasError = err !== null;\n            if (hasError) {\n                if (packet.tryCount > this._opts.retries) {\n                    this._queue.shift();\n                    if (ack) {\n                        ack(err);\n                    }\n                }\n            }\n            else {\n                this._queue.shift();\n                if (ack) {\n                    ack(null, ...responseArgs);\n                }\n            }\n            packet.pending = false;\n            return this._drainQueue();\n        });\n        this._queue.push(packet);\n        this._drainQueue();\n    }\n    /**\n     * Send the first packet of the queue, and wait for an acknowledgement from the server.\n     * @param force - whether to resend a packet that has not been acknowledged yet\n     *\n     * @private\n     */\n    _drainQueue(force = false) {\n        if (!this.connected || this._queue.length === 0) {\n            return;\n        }\n        const packet = this._queue[0];\n        if (packet.pending && !force) {\n            return;\n        }\n        packet.pending = true;\n        packet.tryCount++;\n        this.flags = packet.flags;\n        this.emit.apply(this, packet.args);\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param packet\n     * @private\n     */\n    packet(packet) {\n        packet.nsp = this.nsp;\n        this.io._packet(packet);\n    }\n    /**\n     * Called upon engine `open`.\n     *\n     * @private\n     */\n    onopen() {\n        if (typeof this.auth == \"function\") {\n            this.auth((data) => {\n                this._sendConnectPacket(data);\n            });\n        }\n        else {\n            this._sendConnectPacket(this.auth);\n        }\n    }\n    /**\n     * Sends a CONNECT packet to initiate the Socket.IO session.\n     *\n     * @param data\n     * @private\n     */\n    _sendConnectPacket(data) {\n        this.packet({\n            type: PacketType.CONNECT,\n            data: this._pid\n                ? Object.assign({ pid: this._pid, offset: this._lastOffset }, data)\n                : data,\n        });\n    }\n    /**\n     * Called upon engine or manager `error`.\n     *\n     * @param err\n     * @private\n     */\n    onerror(err) {\n        if (!this.connected) {\n            this.emitReserved(\"connect_error\", err);\n        }\n    }\n    /**\n     * Called upon engine `close`.\n     *\n     * @param reason\n     * @param description\n     * @private\n     */\n    onclose(reason, description) {\n        this.connected = false;\n        delete this.id;\n        this.emitReserved(\"disconnect\", reason, description);\n    }\n    /**\n     * Called with socket packet.\n     *\n     * @param packet\n     * @private\n     */\n    onpacket(packet) {\n        const sameNamespace = packet.nsp === this.nsp;\n        if (!sameNamespace)\n            return;\n        switch (packet.type) {\n            case PacketType.CONNECT:\n                if (packet.data && packet.data.sid) {\n                    this.onconnect(packet.data.sid, packet.data.pid);\n                }\n                else {\n                    this.emitReserved(\"connect_error\", new Error(\"It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)\"));\n                }\n                break;\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                this.onevent(packet);\n                break;\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                this.onack(packet);\n                break;\n            case PacketType.DISCONNECT:\n                this.ondisconnect();\n                break;\n            case PacketType.CONNECT_ERROR:\n                this.destroy();\n                const err = new Error(packet.data.message);\n                // @ts-ignore\n                err.data = packet.data.data;\n                this.emitReserved(\"connect_error\", err);\n                break;\n        }\n    }\n    /**\n     * Called upon a server event.\n     *\n     * @param packet\n     * @private\n     */\n    onevent(packet) {\n        const args = packet.data || [];\n        if (null != packet.id) {\n            args.push(this.ack(packet.id));\n        }\n        if (this.connected) {\n            this.emitEvent(args);\n        }\n        else {\n            this.receiveBuffer.push(Object.freeze(args));\n        }\n    }\n    emitEvent(args) {\n        if (this._anyListeners && this._anyListeners.length) {\n            const listeners = this._anyListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, args);\n            }\n        }\n        super.emit.apply(this, args);\n        if (this._pid && args.length && typeof args[args.length - 1] === \"string\") {\n            this._lastOffset = args[args.length - 1];\n        }\n    }\n    /**\n     * Produces an ack callback to emit with an event.\n     *\n     * @private\n     */\n    ack(id) {\n        const self = this;\n        let sent = false;\n        return function (...args) {\n            // prevent double callbacks\n            if (sent)\n                return;\n            sent = true;\n            self.packet({\n                type: PacketType.ACK,\n                id: id,\n                data: args,\n            });\n        };\n    }\n    /**\n     * Called upon a server acknowlegement.\n     *\n     * @param packet\n     * @private\n     */\n    onack(packet) {\n        const ack = this.acks[packet.id];\n        if (\"function\" === typeof ack) {\n            ack.apply(this, packet.data);\n            delete this.acks[packet.id];\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon server connect.\n     *\n     * @private\n     */\n    onconnect(id, pid) {\n        this.id = id;\n        this.recovered = pid && this._pid === pid;\n        this._pid = pid; // defined only if connection state recovery is enabled\n        this.connected = true;\n        this.emitBuffered();\n        this.emitReserved(\"connect\");\n        this._drainQueue(true);\n    }\n    /**\n     * Emit buffered events (received and emitted).\n     *\n     * @private\n     */\n    emitBuffered() {\n        this.receiveBuffer.forEach((args) => this.emitEvent(args));\n        this.receiveBuffer = [];\n        this.sendBuffer.forEach((packet) => {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        });\n        this.sendBuffer = [];\n    }\n    /**\n     * Called upon server disconnect.\n     *\n     * @private\n     */\n    ondisconnect() {\n        this.destroy();\n        this.onclose(\"io server disconnect\");\n    }\n    /**\n     * Called upon forced client/server side disconnections,\n     * this method ensures the manager stops tracking us and\n     * that reconnections don't get triggered for this.\n     *\n     * @private\n     */\n    destroy() {\n        if (this.subs) {\n            // clean subscriptions to avoid reconnections\n            this.subs.forEach((subDestroy) => subDestroy());\n            this.subs = undefined;\n        }\n        this.io[\"_destroy\"](this);\n    }\n    /**\n     * Disconnects the socket manually. In that case, the socket will not try to reconnect.\n     *\n     * If this is the last active Socket instance of the {@link Manager}, the low-level connection will be closed.\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   // console.log(reason); prints \"io client disconnect\"\n     * });\n     *\n     * socket.disconnect();\n     *\n     * @return self\n     */\n    disconnect() {\n        if (this.connected) {\n            this.packet({ type: PacketType.DISCONNECT });\n        }\n        // remove socket from pool\n        this.destroy();\n        if (this.connected) {\n            // fire events\n            this.onclose(\"io client disconnect\");\n        }\n        return this;\n    }\n    /**\n     * Alias for {@link disconnect()}.\n     *\n     * @return self\n     */\n    close() {\n        return this.disconnect();\n    }\n    /**\n     * Sets the compress flag.\n     *\n     * @example\n     * socket.compress(false).emit(\"hello\");\n     *\n     * @param compress - if `true`, compresses the sending data\n     * @return self\n     */\n    compress(compress) {\n        this.flags.compress = compress;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the event message will be dropped when this socket is not\n     * ready to send messages.\n     *\n     * @example\n     * socket.volatile.emit(\"hello\"); // the server may or may not receive it\n     *\n     * @returns self\n     */\n    get volatile() {\n        this.flags.volatile = true;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the callback will be called with an error when the\n     * given number of milliseconds have elapsed without an acknowledgement from the server:\n     *\n     * @example\n     * socket.timeout(5000).emit(\"my-event\", (err) => {\n     *   if (err) {\n     *     // the server did not acknowledge the event in the given delay\n     *   }\n     * });\n     *\n     * @returns self\n     */\n    timeout(timeout) {\n        this.flags.timeout = timeout;\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * @example\n     * socket.onAny((event, ...args) => {\n     *   console.log(`got ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * @example\n     * socket.prependAny((event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * }\n     *\n     * socket.onAny(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAny(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAny();\n     *\n     * @param listener\n     */\n    offAny(listener) {\n        if (!this._anyListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAny() {\n        return this._anyListeners || [];\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.onAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.prependAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * }\n     *\n     * socket.onAnyOutgoing(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAnyOutgoing(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAnyOutgoing();\n     *\n     * @param [listener] - the catch-all listener (optional)\n     */\n    offAnyOutgoing(listener) {\n        if (!this._anyOutgoingListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyOutgoingListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyOutgoingListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAnyOutgoing() {\n        return this._anyOutgoingListeners || [];\n    }\n    /**\n     * Notify the listeners for each packet sent\n     *\n     * @param packet\n     *\n     * @private\n     */\n    notifyOutgoingListeners(packet) {\n        if (this._anyOutgoingListeners && this._anyOutgoingListeners.length) {\n            const listeners = this._anyOutgoingListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, packet.data);\n            }\n        }\n    }\n}\n", "/**\n * Initialize backoff timer with `opts`.\n *\n * - `min` initial timeout in milliseconds [100]\n * - `max` max timeout [10000]\n * - `jitter` [0]\n * - `factor` [2]\n *\n * @param {Object} opts\n * @api public\n */\nexport function Backoff(opts) {\n    opts = opts || {};\n    this.ms = opts.min || 100;\n    this.max = opts.max || 10000;\n    this.factor = opts.factor || 2;\n    this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;\n    this.attempts = 0;\n}\n/**\n * Return the backoff duration.\n *\n * @return {Number}\n * @api public\n */\nBackoff.prototype.duration = function () {\n    var ms = this.ms * Math.pow(this.factor, this.attempts++);\n    if (this.jitter) {\n        var rand = Math.random();\n        var deviation = Math.floor(rand * this.jitter * ms);\n        ms = (Math.floor(rand * 10) & 1) == 0 ? ms - deviation : ms + deviation;\n    }\n    return Math.min(ms, this.max) | 0;\n};\n/**\n * Reset the number of attempts.\n *\n * @api public\n */\nBackoff.prototype.reset = function () {\n    this.attempts = 0;\n};\n/**\n * Set the minimum duration\n *\n * @api public\n */\nBackoff.prototype.setMin = function (min) {\n    this.ms = min;\n};\n/**\n * Set the maximum duration\n *\n * @api public\n */\nBackoff.prototype.setMax = function (max) {\n    this.max = max;\n};\n/**\n * Set the jitter\n *\n * @api public\n */\nBackoff.prototype.setJitter = function (jitter) {\n    this.jitter = jitter;\n};\n", "import { Socket as Engine, installTimerFunctions, nextTick, } from \"engine.io-client\";\nimport { Socket } from \"./socket.js\";\nimport * as parser from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Backoff } from \"./contrib/backo2.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\nexport class Manager extends Emitter {\n    constructor(uri, opts) {\n        var _a;\n        super();\n        this.nsps = {};\n        this.subs = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = undefined;\n        }\n        opts = opts || {};\n        opts.path = opts.path || \"/socket.io\";\n        this.opts = opts;\n        installTimerFunctions(this, opts);\n        this.reconnection(opts.reconnection !== false);\n        this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);\n        this.reconnectionDelay(opts.reconnectionDelay || 1000);\n        this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);\n        this.randomizationFactor((_a = opts.randomizationFactor) !== null && _a !== void 0 ? _a : 0.5);\n        this.backoff = new Backoff({\n            min: this.reconnectionDelay(),\n            max: this.reconnectionDelayMax(),\n            jitter: this.randomizationFactor(),\n        });\n        this.timeout(null == opts.timeout ? 20000 : opts.timeout);\n        this._readyState = \"closed\";\n        this.uri = uri;\n        const _parser = opts.parser || parser;\n        this.encoder = new _parser.Encoder();\n        this.decoder = new _parser.Decoder();\n        this._autoConnect = opts.autoConnect !== false;\n        if (this._autoConnect)\n            this.open();\n    }\n    reconnection(v) {\n        if (!arguments.length)\n            return this._reconnection;\n        this._reconnection = !!v;\n        return this;\n    }\n    reconnectionAttempts(v) {\n        if (v === undefined)\n            return this._reconnectionAttempts;\n        this._reconnectionAttempts = v;\n        return this;\n    }\n    reconnectionDelay(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelay;\n        this._reconnectionDelay = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMin(v);\n        return this;\n    }\n    randomizationFactor(v) {\n        var _a;\n        if (v === undefined)\n            return this._randomizationFactor;\n        this._randomizationFactor = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setJitter(v);\n        return this;\n    }\n    reconnectionDelayMax(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelayMax;\n        this._reconnectionDelayMax = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMax(v);\n        return this;\n    }\n    timeout(v) {\n        if (!arguments.length)\n            return this._timeout;\n        this._timeout = v;\n        return this;\n    }\n    /**\n     * Starts trying to reconnect if reconnection is enabled and we have not\n     * started reconnecting yet\n     *\n     * @private\n     */\n    maybeReconnectOnOpen() {\n        // Only try to reconnect if it's the first time we're connecting\n        if (!this._reconnecting &&\n            this._reconnection &&\n            this.backoff.attempts === 0) {\n            // keeps reconnection from firing twice for the same reconnection loop\n            this.reconnect();\n        }\n    }\n    /**\n     * Sets the current transport `socket`.\n     *\n     * @param {Function} fn - optional, callback\n     * @return self\n     * @public\n     */\n    open(fn) {\n        if (~this._readyState.indexOf(\"open\"))\n            return this;\n        this.engine = new Engine(this.uri, this.opts);\n        const socket = this.engine;\n        const self = this;\n        this._readyState = \"opening\";\n        this.skipReconnect = false;\n        // emit `open`\n        const openSubDestroy = on(socket, \"open\", function () {\n            self.onopen();\n            fn && fn();\n        });\n        const onError = (err) => {\n            this.cleanup();\n            this._readyState = \"closed\";\n            this.emitReserved(\"error\", err);\n            if (fn) {\n                fn(err);\n            }\n            else {\n                // Only do this if there is no fn to handle the error\n                this.maybeReconnectOnOpen();\n            }\n        };\n        // emit `error`\n        const errorSub = on(socket, \"error\", onError);\n        if (false !== this._timeout) {\n            const timeout = this._timeout;\n            // set timer\n            const timer = this.setTimeoutFn(() => {\n                openSubDestroy();\n                onError(new Error(\"timeout\"));\n                socket.close();\n            }, timeout);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n        this.subs.push(openSubDestroy);\n        this.subs.push(errorSub);\n        return this;\n    }\n    /**\n     * Alias for open()\n     *\n     * @return self\n     * @public\n     */\n    connect(fn) {\n        return this.open(fn);\n    }\n    /**\n     * Called upon transport open.\n     *\n     * @private\n     */\n    onopen() {\n        // clear old subs\n        this.cleanup();\n        // mark as open\n        this._readyState = \"open\";\n        this.emitReserved(\"open\");\n        // add new subs\n        const socket = this.engine;\n        this.subs.push(on(socket, \"ping\", this.onping.bind(this)), on(socket, \"data\", this.ondata.bind(this)), on(socket, \"error\", this.onerror.bind(this)), on(socket, \"close\", this.onclose.bind(this)), on(this.decoder, \"decoded\", this.ondecoded.bind(this)));\n    }\n    /**\n     * Called upon a ping.\n     *\n     * @private\n     */\n    onping() {\n        this.emitReserved(\"ping\");\n    }\n    /**\n     * Called with data.\n     *\n     * @private\n     */\n    ondata(data) {\n        try {\n            this.decoder.add(data);\n        }\n        catch (e) {\n            this.onclose(\"parse error\", e);\n        }\n    }\n    /**\n     * Called when parser fully decodes a packet.\n     *\n     * @private\n     */\n    ondecoded(packet) {\n        // the nextTick call prevents an exception in a user-provided event listener from triggering a disconnection due to a \"parse error\"\n        nextTick(() => {\n            this.emitReserved(\"packet\", packet);\n        }, this.setTimeoutFn);\n    }\n    /**\n     * Called upon socket error.\n     *\n     * @private\n     */\n    onerror(err) {\n        this.emitReserved(\"error\", err);\n    }\n    /**\n     * Creates a new socket for the given `nsp`.\n     *\n     * @return {Socket}\n     * @public\n     */\n    socket(nsp, opts) {\n        let socket = this.nsps[nsp];\n        if (!socket) {\n            socket = new Socket(this, nsp, opts);\n            this.nsps[nsp] = socket;\n        }\n        else if (this._autoConnect && !socket.active) {\n            socket.connect();\n        }\n        return socket;\n    }\n    /**\n     * Called upon a socket close.\n     *\n     * @param socket\n     * @private\n     */\n    _destroy(socket) {\n        const nsps = Object.keys(this.nsps);\n        for (const nsp of nsps) {\n            const socket = this.nsps[nsp];\n            if (socket.active) {\n                return;\n            }\n        }\n        this._close();\n    }\n    /**\n     * Writes a packet.\n     *\n     * @param packet\n     * @private\n     */\n    _packet(packet) {\n        const encodedPackets = this.encoder.encode(packet);\n        for (let i = 0; i < encodedPackets.length; i++) {\n            this.engine.write(encodedPackets[i], packet.options);\n        }\n    }\n    /**\n     * Clean up transport subscriptions and packet buffer.\n     *\n     * @private\n     */\n    cleanup() {\n        this.subs.forEach((subDestroy) => subDestroy());\n        this.subs.length = 0;\n        this.decoder.destroy();\n    }\n    /**\n     * Close the current socket.\n     *\n     * @private\n     */\n    _close() {\n        this.skipReconnect = true;\n        this._reconnecting = false;\n        this.onclose(\"forced close\");\n        if (this.engine)\n            this.engine.close();\n    }\n    /**\n     * Alias for close()\n     *\n     * @private\n     */\n    disconnect() {\n        return this._close();\n    }\n    /**\n     * Called upon engine close.\n     *\n     * @private\n     */\n    onclose(reason, description) {\n        this.cleanup();\n        this.backoff.reset();\n        this._readyState = \"closed\";\n        this.emitReserved(\"close\", reason, description);\n        if (this._reconnection && !this.skipReconnect) {\n            this.reconnect();\n        }\n    }\n    /**\n     * Attempt a reconnection.\n     *\n     * @private\n     */\n    reconnect() {\n        if (this._reconnecting || this.skipReconnect)\n            return this;\n        const self = this;\n        if (this.backoff.attempts >= this._reconnectionAttempts) {\n            this.backoff.reset();\n            this.emitReserved(\"reconnect_failed\");\n            this._reconnecting = false;\n        }\n        else {\n            const delay = this.backoff.duration();\n            this._reconnecting = true;\n            const timer = this.setTimeoutFn(() => {\n                if (self.skipReconnect)\n                    return;\n                this.emitReserved(\"reconnect_attempt\", self.backoff.attempts);\n                // check again for the case socket closed in above events\n                if (self.skipReconnect)\n                    return;\n                self.open((err) => {\n                    if (err) {\n                        self._reconnecting = false;\n                        self.reconnect();\n                        this.emitReserved(\"reconnect_error\", err);\n                    }\n                    else {\n                        self.onreconnect();\n                    }\n                });\n            }, delay);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n    }\n    /**\n     * Called upon successful reconnect.\n     *\n     * @private\n     */\n    onreconnect() {\n        const attempt = this.backoff.attempts;\n        this._reconnecting = false;\n        this.backoff.reset();\n        this.emitReserved(\"reconnect\", attempt);\n    }\n}\n", "import { url } from \"./url.js\";\nimport { Manager } from \"./manager.js\";\nimport { Socket } from \"./socket.js\";\n/**\n * Managers cache.\n */\nconst cache = {};\nfunction lookup(uri, opts) {\n    if (typeof uri === \"object\") {\n        opts = uri;\n        uri = undefined;\n    }\n    opts = opts || {};\n    const parsed = url(uri, opts.path || \"/socket.io\");\n    const source = parsed.source;\n    const id = parsed.id;\n    const path = parsed.path;\n    const sameNamespace = cache[id] && path in cache[id][\"nsps\"];\n    const newConnection = opts.forceNew ||\n        opts[\"force new connection\"] ||\n        false === opts.multiplex ||\n        sameNamespace;\n    let io;\n    if (newConnection) {\n        io = new Manager(source, opts);\n    }\n    else {\n        if (!cache[id]) {\n            cache[id] = new Manager(source, opts);\n        }\n        io = cache[id];\n    }\n    if (parsed.query && !opts.query) {\n        opts.query = parsed.queryKey;\n    }\n    return io.socket(parsed.path, opts);\n}\n// so that \"lookup\" can be used both as a function (e.g. `io(...)`) and as a\n// namespace (e.g. `io.connect(...)`), for backward compatibility\nObject.assign(lookup, {\n    Manager,\n    Socket,\n    io: lookup,\n    connect: lookup,\n});\n/**\n * Protocol version.\n *\n * @public\n */\nexport { protocol } from \"socket.io-parser\";\n/**\n * Expose constructors for standalone build.\n *\n * @public\n */\nexport { Manager, Socket, lookup as io, lookup as connect, lookup as default, };\n"],
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"delay", "factor", "depth", "reason", "lookup", "options", "eMsg", "uibuilder", "uibuilder_module_default", "uibuilder", "UibVar"]
+  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\n// Namespaces - See https://stackoverflow.com/a/52572048/1309986\n// const NAMESPACES = {\n//     svg: 'http://www.w3.org/2000/svg',\n//     html: 'http://www.w3.org/1999/xhtml',\n//     xml: 'http://www.w3.org/XML/1998/namespace',\n//     xlink: 'http://www.w3.org/1999/xlink',\n//     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n// }\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    //#region ---- Internal Methods ----\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                if (attrib === 'class' && Array.isArray(comp.attributes[attrib])) comp.attributes[attrib].join(' ')\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    /** External alias for _uiComposeComponent\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n    } // --- end of _uiManager ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    //#endregion ---- -------- ----\n    //#region ---- External Methods ----\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += msg.payload\n        if (ui.content) content += ui.content\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        this._uiManager(msg)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName !== null && propName !== '') {\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    // Nightmare of different object types in a DOM Element!\n                    if (prop.constructor.name === 'NamedNodeMap') { // Attributes\n                        const p = {}\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                        out.push(p)\n                    } else if (!prop.constructor.name.toLowerCase().includes('map')) { // Ordinary properties\n                        out.push({\n                            [propName]: prop\n                        })\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                        out.push(p)\n                    }\n                }\n\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    //#endregion ---- -------- ----\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n", "/* This is the Front-End JavaScript for uibuilder  in HTML Module form\n  It provides a number of global objects that can be used in your own javascript.\n  see the docs folder `./docs/uibuilder.module.md` for details of how to use this fully.\n\n  Please use the default index.js file for your own code and leave this as-is.\n  See Uib._meta for client version string\n\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n//#region --- Type Defs --- //\n/**\n * A string containing HTML markup\n * @typedef {string} html\n */\n//#endregion --- Type Defs --- //\n\n//#region --- We need the Socket.IO & ui libraries & the uib-var component  --- //\n// @ts-ignore - Note: Only works when using esbuild to bundle\nimport Ui from './ui'\nimport UibVar from '../components/uib-var'\nimport io from 'socket.io-client'\n\n// TODO - Maybe - check if already loaded as window['io']?\n// TODO - Maybe - Should this be moved to inside the class - would know the httpRoot then so less need to guess?\n// TODO           Or, could pull the cookie processing out of the class\n// const ioLocns = [ // Likely locations of the Socket.IO client library\n//     // Where it should normally be\n//     '../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and haven't changed httpNodeRoot\n//     '/uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and have changed httpNodeRoot\n//     '../../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Direct from the Internet - last ditch attempt\n//     'https://cdn.jsdelivr.net/npm/socket.io-client/+esm',\n// ]\n\n// let io\n// for (const locn of ioLocns) {\n//     try {\n//         ({ io } = await import(locn))\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library found at '${locn}'`)()\n//     } catch (e) {\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library not found at '${locn}'`)()\n//     }\n//     if (io) break\n// }\n// if (!io) log('error', 'uibuilder.module.js', 'Socket.IO client failed to load')()\n//#endregion -------- -------- -------- //\n\nconst version = '6.8.0-src'\n\n// TODO Add option to allow log events to be sent back to Node-RED as uib ctrl msgs\n//#region --- Module-level utility functions --- //\n\n// @ts-ignore Detect whether the loaded library is minified or not\nconst isMinified = !(/param/).test(function (param) { }) // eslint-disable-line no-unused-vars\n\n//#region --- print/console - debugging output functions --- //\n\n/** Default log level - Error & Warn */\nlet logLevel = isMinified ? 0 : 1  // When using minified lib, assume production and only log errors otherwise also log warn\n// function changeLogLevel(level) {\n//     logLevel = level\n//     console.trace = logLevel < 4 ? function(){} : console.trace\n//     console.debug = logLevel < 2 ? function(){} : console.debug\n//     if ( logLevel < 1 ) {\n//         console.log = console.group = console.groupEnd =  function(){}\n//     }\n// }\n\n// Experimental\nconst LOG_STYLES = {\n    // 0\n    error: {\n        css: 'background: red; color: black;',\n        txtCss: 'color: red; ',\n        pre: '\u26D4 ',\n        console: 'error',  // or trace\n    },\n    // 1\n    warn: {\n        css: 'background: darkorange; color: black;',\n        txtCss: 'color: darkorange; ',\n        pre: '\u26A0 ',\n        console: 'warn',\n    },\n    // 2\n    info: {\n        css: 'background: aqua; color: black;',\n        txtCss: 'color: aqua;',\n        pre: '\u2757 ',\n        console: 'info',\n    },\n    // 3\n    log: {\n        css: 'background: grey; color: yellow;',\n        txtCss: 'color: grey;',\n        pre: '',\n        console: 'log',\n    },\n    // 4\n    debug: {\n        css: 'background: chartreuse; color: black;',\n        txtCss: 'color: chartreuse;',\n        pre: '',\n        console: 'debug',\n    },\n    // 5\n    trace: {\n        css: 'background: indigo; color: yellow;',\n        txtCss: 'color: hotpink;',\n        pre: '',\n        console: 'log',\n    },\n\n    names: ['error', 'warn', 'info', 'log', 'debug', 'trace'],\n    reset: 'color: inherit;',\n    head: 'font-weight:bold; font-style:italic;',\n    level: 'font-weight:bold; border-radius: 3px; padding: 2px 5px; display:inline-block;',\n}\n/** Custom logging. e.g. log(2, 'here:there', 'jiminy', {fred:'jim'})()\n * @returns {Function} Log function @example log(2, 'here:there', 'jiminy', {fred:'jim'})()\n */\nfunction log() {\n    // Get the args\n    const args = Array.prototype.slice.call(arguments)\n\n    // 1st arg is the log level/type\n    let level = args.shift()\n    let strLevel\n    switch (level) {\n        case 'trace':\n        case 5: {\n            if (logLevel < 5) break\n            level = 5 // make sure level is numeric\n            strLevel = 'trace'\n            break\n        }\n\n        case 'debug':\n        case 4: {\n            if (logLevel < 4) break\n            level = 4\n            strLevel = 'debug'\n            break\n        }\n\n        case 'log':\n        case 3: {\n            if (logLevel < 3) break\n            level = 3\n            strLevel = 'log'\n            break\n        }\n\n        case 'info':\n        case '':\n        case 2: {\n            if (logLevel < 2) break\n            level = 2\n            strLevel = 'info'\n            break\n        }\n\n        case 'warn':\n        case 1: {\n            if (logLevel < 1) break\n            level = 1\n            strLevel = 'warn'\n            break\n        }\n\n        case 'error':\n        case 'err':\n        case 0: {\n            if (logLevel < 0) break\n            level = 0\n            strLevel = 'error'\n            break\n        }\n\n        default: {\n            level = -1\n            break\n        }\n\n    }\n\n    // If set to something unknown, no log output\n    if (strLevel === undefined) return function () { }\n\n    // 2nd arg is a heading that will be colour highlighted\n    const head = args.shift()\n\n    // Bind back to console.log (could use console[strLevel] but some levels ignore some formatting, use console.xxx directly or dedicated fn)\n    return Function.prototype.bind.call(\n        console[LOG_STYLES[strLevel].console],\n        console,\n        `%c${LOG_STYLES[strLevel].pre}${strLevel}%c [${head}]`, `${LOG_STYLES.level} ${LOG_STYLES[strLevel].css}`, `${LOG_STYLES.head} ${LOG_STYLES[strLevel].txtCss}`,\n        ...args\n    )\n}\n//#endregion\n\n/** A hack to dynamically load a remote module and wait until it is loaded\n * @param {string} url The URL of the module to load\n * @returns {object|null} Either the result object or null (if the load fails)\n */\n// function loadModule(url) { // eslint-disable-line no-unused-vars\n//     let done\n\n//     import(url)\n//         .then(res => {\n//             log('debug', '>> then >>', res)()\n//             done = res\n//         })\n//         .catch(err => {\n//             console.error(`[uibuilder:loadModule] Could not load module ${url}`, err)\n//             done = null\n//         })\n\n//     //  eslint-disable-next-line no-empty\n//     while (!done) { } // eslint-disable-line no-unmodified-loop-condition\n\n//     return done\n// }\n\n/** Makes a null or non-object into an object\n * If not null, moves \"thing\" to {payload:thing}\n *\n * @param {*} thing Thing to check\n * @param {string} [property='payload'] property that \"thing\" is moved to if not null and not an object\n * @returns {!object} _\n */\nfunction makeMeAnObject(thing, property) {\n    if (!property) property = 'payload'\n    if (typeof property !== 'string') {\n        log('warn', 'uibuilderfe:makeMeAnObject', `WARNING: property parameter must be a string and not: ${typeof property}`)()\n        property = 'payload'\n    }\n    let out = {}\n    if ( thing !== null && thing.constructor.name === 'Object' ) {\n        out = thing\n    } else if (thing !== null) {\n        out[property] = thing\n    }\n    return out\n} // --- End of make me an object --- //\n\n/** Joins all arguments as a URL string\n * see http://stackoverflow.com/a/28592528/3016654\n * since v1.0.10, fixed potential double // issue\n * arguments {string} URL fragments\n * @returns {string} _\n */\nfunction urlJoin() {\n    const paths = Array.prototype.slice.call(arguments)\n    const url = '/' + paths.map(function (e) {\n        return e.replace(/^\\/|\\/$/g, '')\n    })\n        .filter(function (e) {\n            return e\n        })\n        .join('/')\n    return url.replace('//', '/')\n} // ---- End of urlJoin ---- //\n\n/** Convert JSON to Syntax Highlighted HTML\n * @param {object} json A JSON/JavaScript Object\n * @returns {html} Object reformatted as highlighted HTML\n */\nfunction syntaxHighlight(json) {\n    if (json === undefined) {\n        json = '<span class=\"undefined\">undefined</span>'\n    } else {\n        try {\n            json = JSON.stringify(json, undefined, 4)\n            // json = json.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;') // eslint-disable-line newline-per-chained-call\n            json = json.replace(/(\"(\\\\u[a-zA-Z0-9]{4}|\\\\[^u]|[^\\\\\"])*\"(\\s*:)?|\\b(true|false|null)\\b|-?\\d+(?:\\.\\d*)?(?:[eE][+-]?\\d+)?)/g, function (match) { // eslint-disable-line prefer-named-capture-group\n                let cls = 'number'\n                if ((/^\"/).test(match)) {\n                    if ((/:$/).test(match)) {\n                        cls = 'key'\n                    } else {\n                        cls = 'string'\n                    }\n                } else if ((/true|false/).test(match)) {\n                    cls = 'boolean'\n                } else if ((/null/).test(match)) {\n                    cls = 'null'\n                }\n                return `<span class=\"${cls}\">${match}</span>`\n            })\n        } catch (e) {\n            json = `Syntax Highlight ERROR: ${e.message}`\n        }\n    }\n    return json\n}\n\n/** msg._ui handling functions */\nconst _ui = new Ui(window, log, syntaxHighlight)\n\n//#endregion --- Module-level utility functions --- //\n\n/** Define and export the Uib class - note that an instance of the class is also exported in the wrap-up\n * @typicalname uibuilder\n */\nexport const Uib = class Uib {\n\n    //#region --- Static variables ---\n    static _meta = {\n        version: version,\n        type: 'module',\n        displayName: 'uibuilder',\n    }\n    //#endregion ---- ---- ---- ----\n\n    //#region private class vars\n\n    // How many times has the loaded instance connected to Socket.IO (detect if not a new load?)\n    connectedNum = 0\n    // event listener callbacks by property name\n    // #events = {}\n    // Socket.IO channel names\n    _ioChannels = { control: 'uiBuilderControl', client: 'uiBuilderClient', server: 'uiBuilder' }\n    /** setInterval holder for pings @type {function|undefined} */\n    #pingInterval\n    // onChange event callbacks\n    #propChangeCallbacks = {}\n    // onTopic event callbacks\n    #msgRecvdByTopicCallbacks = {}\n    // Is Vue available?\n    isVue = false\n    // What version? Set in startup if Vue is loaded. Won't always work\n    vueVersion = undefined\n    /** setInterval id holder for Socket.IO checkConnect\n     * @type {number|null}\n     */\n    #timerid = null\n    // Holds the reference ID for the internal msg change event handler so that it can be cancelled\n    #MsgHandler\n    // Placeholder for io.socket - can't make a # var until # fns allowed in all browsers\n    _socket\n    // Placeholder for an observer that watches the whole DOM for changes - can't make a # var until # fns allowed in all browsers\n    _htmlObserver\n    // Has showMsg been turned on?\n    #isShowMsg = false\n    // Has showStatus been turned on?\n    #isShowStatus = false\n    // If true, URL hash changes send msg back to node-red. Controlled by watchUrlHash()\n    #sendUrlHash = false\n    // Externally accessible command functions (NB: Case must match) - remember to update _uibCommand for new commands\n    #extCommands = [\n        'elementExists', 'get', 'getManagedVarList', 'getWatchedVars', 'htmlSend', 'include',\n        'navigate', 'scrollTo', 'set', 'showMsg', 'showStatus', 'uiGet', 'uiWatch', 'watchUrlHash',\n    ]\n\n    /** @type {{[key: string]: string}} Managed uibuilder variables */\n    #managedVars = {}\n\n    // What status variables to show via showStatus()\n    #showStatus = {\n        online: { 'var': 'online', 'label': 'Online?', 'description': 'Is the browser online?', },\n        ioConnected: { 'var': 'ioConnected', 'label': 'Socket.IO connected?', 'description': 'Is Socket.IO connected?', },\n        connectedNum: { 'var': 'connectedNum', 'label': '# reconnections', 'description': 'How many times has Socket.IO had to reconnect since last page load?', },\n\n        clientId: { 'var': 'clientId', 'label': 'Client ID', 'description': 'Static client unique id set in Node-RED. Only changes when browser is restarted.', },\n        tabId: { 'var': 'tabId', 'label': 'Browser tab ID', 'description': 'Static unique id for the browser\\'s current tab', },\n        cookies: { 'var': 'cookies', 'label': 'Cookies', 'description': 'Cookies set in Node-RED', },\n        httpNodeRoot: { 'var': 'httpNodeRoot', 'label': 'httpNodeRoot', 'description': 'From Node-RED\\' settings.js, affects URL\\'s. May be wrong for pages in sub-folders', },\n        pageName: { 'var': 'pageName', 'label': 'Page name', 'description': 'Actual name of this page', },\n\n        ioNamespace: { 'var': 'ioNamespace', 'label': 'SIO namespace', 'description': 'Socket.IO namespace - unique to each uibuilder node instance', },\n        // ioPath: { 'var': 'ioPath', 'label': 'SIO path', 'description': '', }, // no longer needed in the modern client\n        socketError: { 'var': 'socketError', 'label': 'Socket error', 'description': 'If the Socket.IO connection has failed, says why', },\n\n        msgsSent: { 'var': 'msgsSent', 'label': '# msgs sent', 'description': 'How many standard messages have been sent to Node-RED?', },\n        msgsReceived: { 'var': 'msgsReceived', 'label': '# msgs received', 'description': 'How many standard messages have been received from Node-RED?', },\n        msgsSentCtrl: { 'var': 'msgsSentCtrl', 'label': '# control msgs sent', 'description': 'How many control messages have been sent to Node-RED?', },\n        msgsCtrlReceived: { 'var': 'msgsCtrlReceived', 'label': '# control msgs received', 'description': 'How many control messages have been received from Node-RED?', },\n        originator: { 'var': 'originator', 'label': 'Node Originator', 'description': 'If the last msg from Node-RED was from a `uib-sender` node, this will be its node id so that messasges can be returned to it', },\n        topic: { 'var': 'topic', 'label': 'Default topic', 'description': 'Optional default topic to be included in outgoing standard messages', },\n\n        started: { 'var': 'started', 'label': 'Has uibuilder client started?', 'description': 'Whether `uibuilder.start()` ran successfully. This should self-run and should not need to be run manually', },\n        version: { 'var': 'version', 'label': 'uibuilder client version', 'description': 'The version of the loaded uibuilder client library', },\n        serverTimeOffset: { 'var': 'serverTimeOffset', 'label': 'Server time offset (Hrs)', 'description': 'The number of hours difference between the Node-red server and the client', },\n    }\n\n    // Track ui observers (see uiWatch)\n    #uiObservers = {}\n\n    //#endregion\n\n    //#region public class vars\n\n    // TODO Move to proper getters\n    //#region ---- Externally read-only (via .get method) ---- //\n    // version - moved to _meta\n    /** Client ID set by uibuilder on connect */\n    clientId = ''\n    /** The collection of cookies provided by uibuilder */\n    cookies = {}\n    /** Copy of last control msg object received from sever */\n    ctrlMsg = {}\n    /** Is Socket.IO client connected to the server? */\n    ioConnected = false\n    // Is the browser tab containing this page visible or not?\n    isVisible = false\n    // Remember the last page (re)load/navigation type: navigate, reload, back_forward, prerender\n    lastNavType = ''\n    /** Last std msg received from Node-RED */\n    msg = {}\n    /** number of messages sent to server since page load */\n    msgsSent = 0\n    /** number of messages received from server since page load */\n    msgsReceived = 0\n    /** number of control messages sent to server since page load */\n    msgsSentCtrl = 0\n    /** number of control messages received from server since page load */\n    msgsCtrlReceived = 0\n    /** Is the client online or offline? */\n    online = navigator.onLine\n    /** last control msg object sent via uibuilder.send() @since v2.0.0-dev3 */\n    sentCtrlMsg = {}\n    /** last std msg object sent via uibuilder.send() */\n    sentMsg = {}\n    /** placeholder to track time offset from server, see fn socket.on(ioChannels.server ...) */\n    serverTimeOffset = null\n    /** placeholder for a socket error message */\n    socketError = null\n    // tab identifier from session storage\n    tabId = ''\n    // Actual name of current page (set in constructor)\n    pageName = null\n    // Is the DOMPurify library loaded? Updated in start()\n    purify = false\n    // Is the Markdown-IT library loaded? Updated in start()\n    markdown = false\n    // Current URL hash. Initial set is done from start->watchHashChanges via a set to make it watched\n    urlHash = location.hash\n    //#endregion ---- ---- ---- ---- //\n\n    // TODO Move to proper getters/setters\n    //#region ---- Externally Writable (via .set method, read via .get method) ---- //\n    /** Default originator node id - empty string by default\n     * @type {string}\n     */\n    originator = ''\n    /** Default topic - used by send if set and no topic provided\n     * @type {(string|undefined)}\n     */\n    topic = undefined\n    //#endregion ---- ---- ---- ---- //\n\n    //#region ---- These are unlikely to be needed externally: ----\n    autoSendReady = true\n    httpNodeRoot = '' // Node-RED setting (via cookie)\n    ioNamespace = ''\n    ioPath = ''\n    retryFactor = 1.5       // starting delay factor for subsequent reconnect attempts\n    retryMs = 2000          // starting retry ms period for manual socket reconnections workaround\n    storePrefix = 'uib_'    // Prefix for all uib-related localStorage\n    started = false\n    // NOTE: These can only change when a client (re)connects\n    socketOptions = {\n        path: this.ioPath,\n        transports: ['polling', 'websocket'],\n        // Using callback so that they are updated automatically on (re)connect\n        // Only put things in here that will be valid for a websocket connected session\n        auth: (cb) => {\n            cb({ // eslint-disable-line n/no-callback-literal\n                clientVersion: version,\n                clientId: this.clientId,\n                pathName: window.location.pathname,\n                urlParams: Object.fromEntries(new URLSearchParams(location.search)),\n                pageName: this.pageName,\n                tabId: this.tabId,\n                lastNavType: this.lastNavType,\n                connectedNum: ++this.connectedNum,\n                // Used to calculate the diff between the server and client connection timestamps - reported if >1 minute\n                browserConnectTimestamp: (new Date()).toISOString(),\n            })\n        },\n        transportOptions: {\n            // Can only set headers when polling\n            polling: {\n                extraHeaders: {\n                    'x-clientid': `${Uib._meta.displayName}; ${Uib._meta.type}; ${Uib._meta.version}; ${this.clientId}`,\n                }\n            },\n        },\n    }\n    //#endregion -- not external --\n\n    //#endregion --- End of variables ---\n\n    //#region ------- Getters and Setters ------- //\n\n    // Change logging level dynamically (affects both console. and print.)\n    set logLevel(level) { logLevel = level; console.log('%c\u2757 info%c [logLevel]', `${LOG_STYLES.level} ${LOG_STYLES.info.css}`, `${LOG_STYLES.head} ${LOG_STYLES.info.txtCss}`, `Set to ${level} (${LOG_STYLES.names[level]})`) /* changeLogLevel(level)*/ }\n    get logLevel() { return logLevel }\n\n    get meta() { return Uib._meta }\n\n    /** Function to set uibuilder properties to a new value - works on any property except _* or #*\n     * Also triggers any event listeners.\n     * Example: this.set('msg', {topic:'uibuilder', payload:42});\n     * @param {string} prop Any uibuilder property who's name does not start with a _ or #\n     * @param {*} val The set value of the property or a string declaring that a protected property cannot be changed\n     * @param {boolean} [store] If true, the variable is also saved to the browser localStorage if possible\n     * @param {boolean} [autoload] If true & store is true, on load, uib will try to restore the value from the store automatically\n     * @returns {*} Input value\n     */\n    set(prop, val, store = false, autoload = false) {\n        // Check for excluded properties - we don't want people to set these\n        // if (this.#excludedSet.indexOf(prop) !== -1) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:set', `Cannot use set() on protected property \"${prop}\"`)()\n            return `Cannot use set() on protected property \"${prop}\"`\n        }\n\n        // We must add the var to the uibuilder object\n        this[prop] = val\n\n        // Keep track of all managed variables\n        this.#managedVars[prop] = prop\n\n        // If requested, save to store\n        if (store === true) this.setStore(prop, val, autoload)\n\n        log('trace', 'Uib:set', `prop set - prop: ${prop}, val: `, val, ` store: ${store}, autoload: ${autoload}`)()\n\n        // Trigger this prop's event callbacks (listeners which are set by this.onChange)\n        // this.emit(prop, val)\n\n        // trigger an event on the prop name, pass both the name and value to the event details\n        this._dispatchCustomEvent('uibuilder:propertyChanged', { 'prop': prop, 'value': val, 'store': store, 'autoload': autoload })\n\n        return val\n    }\n\n    /** Function to get the value of a uibuilder property\n     * Example: uibuilder.get('msg')\n     * @param {string} prop The name of the property to get as long as it does not start with a _ or #\n     * @returns {*|undefined} The current value of the property\n     */\n    get(prop) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:get', `Cannot use get() on protected property \"${prop}\"`)()\n            return\n        }\n        if (prop === 'version') return Uib._meta.version\n        if (prop === 'msgsCtrl') return this.msgsCtrlReceived\n        if (prop === 'reconnections') return this.connectedNum\n        if (this[prop] === undefined) {\n            log('warn', 'Uib:get', `get() - property \"${prop}\" is undefined`)()\n        }\n        return this[prop]\n    }\n\n    /** Write to localStorage if possible. console error output if can't write\n     * Also uses this.storePrefix\n     * @example\n     *   uibuilder.setStore('fred', 42)\n     *   console.log(uibuilder.getStore('fred'))\n     * @param {string} id localStorage var name to be used (prefixed with 'uib_')\n     * @param {*} value value to write to localstore\n     * @param {boolean} [autoload] If true, on load, uib will try to restore the value from the store\n     * @returns {boolean} True if succeeded else false\n     */\n    setStore(id, value, autoload = false) {\n        let autoVars = {}\n        if (autoload === true) {\n            try {\n                autoVars = this.getStore('_uibAutoloadVars') || {}\n            } catch (e) {}\n        }\n        if (typeof value === 'object') {\n            try {\n                value = JSON.stringify(value)\n            } catch (e) {\n                log('error', 'Uib:setStore', 'Cannot stringify object, not storing. ', e)()\n                return false\n            }\n        }\n        try {\n            localStorage.setItem(this.storePrefix + id, value)\n            if (autoload) {\n                autoVars[id] = id\n                try {\n                    localStorage.setItem(this.storePrefix + '_uibAutoloadVars', JSON.stringify(autoVars))\n                } catch (e) {\n                    log('error', 'Uib:setStore', 'Cannot save autoload list. ', e)()\n                }\n            }\n            this._dispatchCustomEvent('uibuilder:propertyStored', { 'prop': id, 'value': value, 'autoload': autoload })\n            return true\n        } catch (e) {\n            log('error', 'Uib:setStore', 'Cannot write to localStorage. ', e)()\n            return false\n        }\n    } // --- end of setStore --- //\n\n    /** Attempt to get and re-hydrate a key value from localStorage\n     * Note that all uib storage is automatically prefixed using this.storePrefix\n     * @param {*} id The key of the value to attempt to retrieve\n     * @returns {*|null|undefined} The re-hydrated value of the key or null if key not found, undefined on error\n     */\n    getStore(id) {\n        try {\n            // @ts-ignore\n            return JSON.parse(localStorage.getItem(this.storePrefix + id))\n        } catch (e) { }\n        try {\n            return localStorage.getItem(this.storePrefix + id)\n        } catch (e) {\n            return undefined\n        }\n    }\n\n    /** Remove a given id from the uib keys in localStorage\n     * @param {*} id The key to remove\n     */\n    removeStore(id) {\n        try {\n            localStorage.removeItem(this.storePrefix + id)\n        } catch (e) { }\n    }\n\n    /** Returns a list of uibuilder properties (variables) that can be watched with onChange\n     * @returns {{[key: string]: string}} List of uibuilder managed variables\n     */\n    getManagedVarList() {\n        return this.#managedVars\n    }\n\n    getWatchedVars() {\n        return Object.keys(this.#propChangeCallbacks)\n    }\n\n    //#endregion ------- -------- ------- //\n\n    //#region ------- Our own event handling system ---------- //\n\n    // TODO Add option to send event details back to Node-RED as uib ctrl msg\n    /** Standard fn to create a custom event with details & dispatch it\n     * @param {string} title The event name\n     * @param {*} details Any details to pass to event output\n     */\n    _dispatchCustomEvent(title, details) {\n        const event = new CustomEvent(title, { detail: details })\n        document.dispatchEvent(event)\n    }\n\n    // See the this.#propChangeCallbacks & msgRecvdByTopicCallbacks private vars\n\n    /** Register on-change event listeners for uibuilder tracked properties\n     * Make it possible to register a function that will be run when the property changes.\n     * Note that you can create listeners for non-existant properties\n     * @example: uibuilder.onChange('msg', (msg) => { console.log('uibuilder.msg changed! It is now: ', msg) })\n     *\n     * @param {string} prop The property of uibuilder that we want to monitor\n     * @param {Function} callback The function that will run when the property changes, parameter is the new value of the property after change\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelChange if you need to remove a listener\n     */\n    onChange(prop, callback) {\n        // Note: Property does not have to exist yet\n\n        // console.debug(`[Uib:onchange] pushing new callback (event listener) for property: ${prop}`)\n\n        // Create a new array or add to the array of callback functions for the property in the events object\n        // if (this.#events[prop]) {\n        //     this.#events[prop].push(callback)\n        // } else {\n        //     this.#events[prop] = [callback]\n        // }\n\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#propChangeCallbacks[prop]) this.#propChangeCallbacks[prop] = { _nextRef: 1 }\n        else this.#propChangeCallbacks[prop]._nextRef++\n\n        const nextCbRef = this.#propChangeCallbacks[prop]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const propChangeCallback = this.#propChangeCallbacks[prop][nextCbRef] = function propChangeCallback(e) {\n            // If the prop name matches the 1st arg in the onChange fn:\n            if (prop === e.detail.prop) {\n                const value = e.detail.value\n                // console.warn('[Uib:onChange:evt] uibuilder:propertyChanged. ', e.detail)\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(value, value)\n            }\n        }\n\n        document.addEventListener('uibuilder:propertyChanged', propChangeCallback)\n\n        return nextCbRef\n    } // ---- End of onChange() ---- //\n\n    cancelChange(prop, cbRef) {\n        document.removeEventListener('uibuilder:propertyChanged', this.#propChangeCallbacks[prop][cbRef])\n        delete this.#propChangeCallbacks[prop][cbRef]\n        // this.#propChangeCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Register a change callback for a specific msg.topic\n     * Similar to onChange but more convenient if needing to differentiate by msg.topic.\n     * @example: let otRef = uibuilder.onTopic('mytopic', function(){ console.log('Received a msg with msg.topic=`mytopic`. msg: ', this) })\n     * To cancel a change listener: uibuilder.cancelTopic('mytopic', otRef)\n     *\n     * @param {string} topic The msg.topic we want to listen for\n     * @param {Function} callback The function that will run when an appropriate msg is received. `this` inside the callback as well as the cb's single argument is the received msg.\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelTopic if you need to remove a listener\n     */\n    onTopic(topic, callback) {\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#msgRecvdByTopicCallbacks[topic]) this.#msgRecvdByTopicCallbacks[topic] = { _nextRef: 1 }\n        else this.#msgRecvdByTopicCallbacks[topic]._nextRef++\n\n        const nextCbRef = this.#msgRecvdByTopicCallbacks[topic]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const msgRecvdEvtCallback = this.#msgRecvdByTopicCallbacks[topic][nextCbRef] = function msgRecvdEvtCallback(e) {\n            const msg = e.detail\n            // console.log('[Uib:onTopic:evt] uibuilder:stdMsgReceived where topic matches. ', e.detail)\n            if (msg.topic === topic) {\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(msg, msg)\n            }\n        }\n\n        document.addEventListener('uibuilder:stdMsgReceived', msgRecvdEvtCallback)\n\n        return nextCbRef\n    }\n\n    cancelTopic(topic, cbRef) {\n        document.removeEventListener('uibuilder:stdMsgReceived', this.#msgRecvdByTopicCallbacks[topic][cbRef])\n        delete this.#msgRecvdByTopicCallbacks[topic][cbRef]\n        // this.#msgRecvdCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Trigger event listener for a given property\n     * Called when uibuilder.set is used\n     *\n     * @param {*} prop The property for which to run the callback functions\n     * arguments: Additional arguments contain the value to pass to the event callback (e.g. newValue)\n     */\n    // emit(prop) {\n    //     var evt = this.#events[prop]\n    //     if (!evt) {\n    //         return\n    //     }\n    //     var args = Array.prototype.slice.call(arguments, 1)\n    //     for (var i = 0; i < evt.length; i++) {\n    //         evt[i].apply(this, args)\n    //     }\n    //     log('trace', 'Uib:emit', `${evt.length} listeners run for prop ${prop} `)()\n    // }\n\n    /** Forcibly removes all event listeners from the events array\n     * Use if you need to re-initialise the environment\n     */\n    // clearEventListeners() {\n    //     this.#events = []\n    // } // ---- End of clearEventListeners() ---- //\n\n    /** Clear a single property event listeners\n     * @param {string} prop The property of uibuilder for which we want to clear the event listener\n     */\n    // clearListener(prop) {\n    //     if (this.#events[prop]) delete this.#events[prop]\n    // }\n\n    //#endregion ---------- End of event handling system ---------- //\n\n    //#region ------- General Utility Functions -------- //\n\n    /** Check supplied msg from server for a timestamp - if received, work out & store difference to browser time\n     * @param {object} receivedMsg A message object recieved from Node-RED\n     * @returns {void} Updates self.serverTimeOffset if different to previous value\n     */\n    _checkTimestamp(receivedMsg) {\n        if (Object.prototype.hasOwnProperty.call(receivedMsg, 'serverTimestamp')) {\n            const serverTimestamp = new Date(receivedMsg.serverTimestamp)\n            // @ts-ignore\n            const offset = Math.round(((new Date()) - serverTimestamp) / 3600000) // in ms /3.6m to get hours\n            if (offset !== this.serverTimeOffset) {\n                log('trace', `Uib:checkTimestamp:${this._ioChannels.server} (server)`, `Offset changed to: ${offset} from: ${this.serverTimeOffset}`)()\n                this.set('serverTimeOffset', offset)\n            }\n        }\n    }\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {*} Selected HTML element or null\n     */\n    $(cssSelector) {\n        /** @type {*} Some kind of HTML element */\n        let el = document.querySelector(cssSelector)\n\n        if (!el) {\n            log(1, 'Uib:$', `No element found for CSS selector ${cssSelector}`)()\n            return null\n        }\n\n        if ( el.nodeName === 'TEMPLATE' ) {\n            el = el.content.firstElementChild\n            if (!el) {\n                log(0, 'Uib:$', `Template selected for CSS selector ${cssSelector} but it is empty`)()\n                return null\n            }\n        }\n\n        return el\n    }\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {*} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {Array} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$(cssSelector) {\n        return Array.from(document.querySelectorAll(cssSelector))\n    }\n\n    /** Set the default originator. Set to '' to ignore. Used with uib-sender.\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    setOriginator(originator = '') {\n        this.set('originator', originator)\n    } // ---- End of setOriginator ---- //\n\n    /** HTTP Ping/Keep-alive - makes a call back to uibuilder's ExpressJS server and receives a 204 response\n     * Can be used to keep sessions alive.\n     * @example\n     *   uibuilder.setPing(2000) // repeat every 2 sec. Re-issue with ping(0) to turn off repeat.\n     *   uibuilder.onChange('ping', function(data) {\n     *      console.log('pinger', data)\n     *   })\n     * @param {number} ms Repeat interval in ms\n     */\n    setPing(ms = 0) {\n        const oReq = new XMLHttpRequest()\n        oReq.addEventListener('load', () => {\n            const headers = (oReq.getAllResponseHeaders()).split('\\r\\n')\n            const elapsedTime = Number(new Date()) - Number((oReq.responseURL.split('='))[1])\n            this.set('ping', {\n                success: !!((oReq.status === 201) || (oReq.status === 204)), // true if one of the listed codes else false\n                status: oReq.status,\n                headers: headers,\n                url: oReq.responseURL,\n                elapsedTime: elapsedTime,\n            })\n        })\n\n        if (this.#pingInterval) {\n            clearInterval(this.#pingInterval)\n            this.#pingInterval = undefined\n        }\n\n        oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n        oReq.send()\n\n        if (ms > 0) {\n            this.#pingInterval = setInterval(() => {\n                oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n                oReq.send()\n            }, ms)\n        }\n    } // ---- End of ping ---- //\n\n    log() {\n        log(...arguments)()\n    }\n\n    /** Convert JSON to Syntax Highlighted HTML\n     * @param {object} json A JSON/JavaScript Object\n     * @returns {html} Object reformatted as highlighted HTML\n     */\n    syntaxHighlight(json) {\n        return syntaxHighlight(json)\n    } // --- End of syntaxHighlight --- //\n\n    /** Copies a uibuilder variable to the browser clipboard\n     * @param {string} varToCopy The name of the uibuilder variable to copy to the clipboard\n     */\n    copyToClipboard(varToCopy) {\n        let data = ''\n        try {\n            console.log(this.get(varToCopy), JSON.stringify(this.get(varToCopy)))\n            data = JSON.stringify(this.get(varToCopy))\n        } catch (e) {\n            log('error', 'copyToClipboard', `Could not copy \"${varToCopy}\" to clipboard.`, e.message)()\n        }\n        navigator.clipboard.writeText(data)\n    } // --- End of copyToClipboard --- //\n\n    /** DEPRECATED FOR NOW - wasn't working properly.\n     * Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.\n     * Requires IntersectionObserver (available to all mainstream browsers from early 2019)\n     * Automatically sends a msg back to Node-RED.\n     * Requires the element to already exist.\n     */\n    elementIsVisible() {\n        const info = 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'\n        log('error', 'uib:elementIsVisible', info)()\n        this.send({payload: 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'})\n        return false\n    } // --- End of elementIsVisible --- //\n\n    /** Does the chosen CSS Selector currently exist?\n     * Automatically sends a msg back to Node-RED unless turned off.\n     * @param {string} cssSelector Required. CSS Selector to examine for visibility\n     * @param {boolean} [msg] Optional, default=true. If true also sends a message back to Node-RED\n     * @returns {boolean} True if the element exists\n     */\n    elementExists(cssSelector, msg = true) {\n        const el = document.querySelector(cssSelector)\n\n        let exists = false\n        if (el !== null) exists = true\n\n        if (msg === true) {\n            this.send({\n                payload: exists,\n                info: `Element \"${cssSelector}\" ${exists ? 'exists' : 'does not exist'}`\n            })\n        }\n\n        return exists\n    } // --- End of elementExists --- //\n\n    /** Only keep the URL Hash & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return '#' + url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Set up an event listener to watch for hash changes\n     * and set the watchable urlHash variable\n     */\n    _watchHashChanges() {\n        this.set('urlHash', location.hash)\n        window.addEventListener('hashchange', (event) => {\n            this.set('urlHash', location.hash)\n            if (this.#sendUrlHash === true) {\n                this.send({ topic: 'hashChange', payload: location.hash, newHash: this.keepHashFromUrl(event.newURL), oldHash: this.keepHashFromUrl(event.oldURL) })\n            }\n        })\n    }\n\n    /** Returns true/false or a default value for truthy/falsy and other values\n     * @param {string|number|boolean|*} val The value to test\n     * @param {any} deflt Default value to use if the value is not truthy/falsy\n     * @returns {boolean|any} The truth! Or the default\n     */\n    truthy(val, deflt) {\n        let ret\n        if (['on', 'On', 'ON', 'true', 'True', 'TRUE', '1', true, 1].includes(val)) ret = true\n        else if (['off', 'Off', 'OFF', 'false', 'False', 'FALSE', '0', false, 0].includes(val)) ret = false\n        else ret = deflt\n        return ret\n    }\n\n    /** Turn on/off/toggle sending URL hash changes back to Node-RED\n     * @param {string|number|boolean|undefined} [toggle] Optional on/off/etc\n     * @returns {boolean} True if we will send a msg to Node-RED on a hash change\n     */\n    watchUrlHash(toggle) {\n        this.#sendUrlHash = this.truthy(toggle, this.#sendUrlHash !== true)\n        return this.#sendUrlHash\n    }\n\n    /** Navigate to a new page or a new route (hash)\n     * @param {string} url URL to navigate to. Can be absolute or relative (to current page) or just a hash for a route change\n     * @returns {Location} The new window.location string\n     */\n    navigate(url) {\n        if (url) window.location.href = url\n        return window.location\n    }\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- UI handlers --------- //\n\n    //#region -- Direct to _ui --\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        _ui.ui(json)\n    }\n\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        _ui.replaceSlot(el, component)\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        _ui.replaceSlotMarkdown(el, component)\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        return _ui.convertMarkdown(mdText)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        return _ui.sanitiseHTML(html)\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        _ui.loadScriptSrc(url)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        _ui.loadStyleSrc(url)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        _ui.loadScriptTxt(textFn)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        _ui.loadStyleTxt(textFn)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) {\n        _ui.showDialog(type, ui, msg)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        _ui.loadui(url)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        return _ui.uiGet(cssSelector, propName)\n    }\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     */\n    async include(url, uiOptions) {\n        _ui.include(url, uiOptions)\n    }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} component Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, component) {\n        _ui.uiEnhanceElement(el, component)\n    }\n\n    //#endregion -- direct to _ui --\n\n    /** * Show/hide a display card on the end of the visible HTML that will dynamically display the last incoming msg from Node-RED\n     * The card has the id `uib_last_msg`. Updates are done from a listener set up in the start function.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showMsg(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowMsg\n        this.#isShowMsg = showHide\n        let slot = 'Waiting for a message from Node-RED'\n\n        if (this.msg && Object.keys(this.msg).length > 0) {\n            slot = this.syntaxHighlight(this.msg)\n        }\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_last_msg_wrap',\n                ],\n            })\n        } else {\n            _ui._uiReplace({\n                components: [\n                    {\n                        type: 'div',\n                        id: 'uib_last_msg_wrap',\n                        parent: parent,\n                        attributes: {\n                            title: 'Last message from Node-RED',\n                        },\n                        components: [\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.copyToClipboard(\"msg\")',\n                                    class: 'compact',\n                                    style: 'right:3em;',\n                                },\n                                slot: '\uD83D\uDCCB',\n                            },\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.showMsg()',\n                                    class: 'compact',\n                                    style: 'right:.5em;',\n                                },\n                                slot: '\u26D4',\n                            },\n                            {\n                                type: 'pre',\n                                id: 'uib_last_msg',\n                                // parent: 'uib_last_msg_wrap',\n                                attributes: {\n                                    class: 'syntax-highlight',\n                                },\n                                slot: slot,\n                            },\n                        ],\n                    },\n                ],\n            })\n        }\n\n        return showHide\n    }\n\n    /** Show a browser notification if possible.\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * @example uibuilder.notify( 'My simple message to the user' )\n     * @example uibuilder.notify( {topic: 'My Title', payload: 'My simple message to the user'} )\n     * @example uibuilder.notify( {title: 'My Title', body: 'My simple message to the user'} )\n     * @example // If config.return = true, a promise is returned.\n     * // The resolved promise is only returned if the notification is clicked by the user.\n     * // Can be used to send the response back to Node-RED\n     * uibuilder.notify(notifyConfig).then( res => uibuilder.eventSend(res) )\n     * @ref https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config data or simple message string\n     * @returns {Promise<Event>|null} A promise that resolves to the click event or null\n     */\n    notify(config) {\n        if (config.return) return _ui.notification(config)\n\n        _ui.notification(config)\n            .then( res => { // eslint-disable-line promise/always-return\n                log('info', 'Uib:notification', 'Notification completed event', res)()\n                // if (config.return) return res\n            })\n            .catch( err => {\n                log('error', 'Uib:notification', 'Notification error event', err)()\n            })\n        return null\n    }\n\n    /** Scroll the page\n     * https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollIntoView\n     * @param {string} [cssSelector] Optional. If not set, scrolls to top of page.\n     * @param {{block:(string|undefined),inline:(string|undefined),behavior:(string|undefined)}} [opts] Optional. DOM scrollIntoView options\n     * @returns {boolean} True if element was found, false otherwise\n     */\n    scrollTo(cssSelector, opts) {\n        // @ts-ignore\n        if (!opts) opts = {}\n        if (!cssSelector || cssSelector === 'top'  || cssSelector === 'start') cssSelector = 'body'\n        else if (cssSelector === 'bottom' || cssSelector === 'end') {\n            cssSelector = 'body'\n            opts.block = 'end'\n        }\n        const el = this.$(cssSelector)\n        if (el) {\n            el.scrollIntoView(opts)\n            return true\n        }\n        return false\n    }\n\n    /** Show/hide a display card on the end of the visible HTML that will dynamically display the current status of the uibuilder client\n     * The card has the id `uib_status`.\n     * The display is updated by an event listener created in the class constructor.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showStatus(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowStatus\n        this.#isShowStatus = showHide\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_status',\n                ],\n            })\n            return showHide\n        }\n\n        const root = {\n            components: [\n                {\n                    type: 'div',\n                    id: 'uib_status',\n                    parent: parent,\n                    attributes: {\n                        title: 'Current status of the uibuilder client',\n                        class: 'text-smaller',\n                    },\n                    components: [\n                        {\n                            'type': 'table',\n                            'components': [\n                                {\n                                    'type': 'tbody',\n                                    'components': []\n                                }\n                            ]\n                        }\n                    ]\n                }\n            ]\n        }\n        const details = root.components[0].components[0].components[0].components\n\n        Object.values(this.#showStatus).forEach( entry => {\n            details.push({\n                'type': 'tr',\n                'attributes': {\n                    title: entry.description,\n                },\n                'components': [\n                    {\n                        'type': 'th',\n                        'slot': entry.label,\n                    },\n                    {\n                        'type': 'td',\n                        'attributes': {\n                            'data-varType': entry.var,\n                        },\n                        'slot': entry.var === 'version' ? Uib._meta.version : JSON.stringify(this[entry.var]),\n                    }\n                ],\n            })\n        })\n\n        _ui._uiReplace(root)\n\n        return showHide\n    }\n\n    /** Use the Mutation Observer browser API to watch for changes to a single element on the page.\n     * OMG! It is sooo hard to turn the data into something that successfully serialises so it can be sent back to Node-RED!\n     * NB: Each cssSelector creates a unique watcher. Sending the same selector overwrites the previous one.\n     * @param {string} cssSelector A CSS Selector that selects the element to watch for changes\n     * @param {boolean|\"toggle\"} [startStop] true=start watching the DOM, false=stop. Default='toggle'\n     * @param {boolean} [send] true=Send changes to Node-RED, false=Don't send. Default=true\n     * @param {boolean} [showLog] true=Output changes to log, false=stop. Default=true. Log level is 2 (Info)\n     * @returns {boolean} True if the watch is on, false otherwise\n     */\n    uiWatch(cssSelector, startStop = 'toggle', send = true, showLog = true) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.querySelector(cssSelector)\n        if (!targetNode) {\n            log('warn', 'uibuilder.module.js:uiWatch', `CSS Selector '${cssSelector}' not found.`)()\n            return false\n        }\n\n        if (startStop === 'toggle' || startStop === undefined || startStop === null) {\n            if (this.#uiObservers[cssSelector]) startStop = false\n            else startStop = true\n        }\n\n        // Need a ref to the Uib this\n        const that = this\n\n        if (startStop === true) {\n            // Create an observer instance\n            this.#uiObservers[cssSelector] = new MutationObserver( function( mutationList /* , observer */ ) {\n                const out = []\n\n                mutationList.forEach( mu => {\n                    // console.log({ mu })\n                    const oMu = {\n                        type: mu.type,\n                        oldValue: mu.oldValue !== null ? mu.oldValue : undefined,\n                    }\n\n                    if (mu.addedNodes.length > 0) {\n                        oMu.addedNodes = []\n                        mu.addedNodes.forEach( (an, i) => {\n                            oMu.addedNodes.push(_ui.nodeGet(mu.addedNodes[i]))\n                        })\n                    }\n\n                    if (mu.removedNodes.length > 0) {\n                        oMu.removedNodes = []\n                        mu.removedNodes.forEach( (an, i) => {\n                            oMu.removedNodes.push(_ui.nodeGet(mu.removedNodes[i]))\n                        })\n                    }\n\n                    if ( mu.type === 'attributes' ) {\n                        oMu.attributeName = mu.attributeName\n                        // @ts-ignore\n                        oMu.newValue = mu.target.attributes[mu.attributeName].value\n                    }\n\n                    out.push(oMu)\n                })\n\n                // Custom event\n                that._dispatchCustomEvent('uibuilder:domChange', out)\n                // Send a msg back to node-red\n                if (send === true) {\n                    that.send({\n                        _ui: {\n                            cssSelector: cssSelector,\n                            uiChanges: out\n                        },\n                        topic: that.topic || `DOM Changes for '${cssSelector}'`,\n                    })\n                }\n                // Log to info\n                if (showLog === true) {\n                    log('info', 'uibuilder.module.js:uiWatch', `DOM Changes for '${cssSelector}'`, { uiChanges: out }, { mutationList })()\n                }\n            } )\n\n            // Start observing the target node for configured mutations\n            this.#uiObservers[cssSelector].observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:uiWatch', `Started Watching DOM changes for '${cssSelector}'`)()\n        } else {\n            this.#uiObservers[cssSelector].disconnect()\n            delete this.#uiObservers[cssSelector]\n            log('trace', 'uibuilder.module.js:uiWatch', `Stopped Watching DOM changes for '${cssSelector}'`)()\n        }\n\n        return startStop\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- HTML cache and DOM watch --------- //\n\n    /** Clear the saved DOM from localStorage */\n    clearHtmlCache() {\n        this.removeStore('htmlCache')\n        log('trace', 'uibuilder.module.js:clearHtmlCache', 'HTML cache cleared')()\n    }\n\n    /** Restore the complete DOM (the whole web page) from browser localStorage if available */\n    restoreHtmlFromCache() {\n        // Is the html cached? If so, restore it\n        const htmlCache = this.getStore('htmlCache')\n        if (htmlCache) {\n            const targetNode = document.getElementsByTagName('html')[0]\n            // Restore the entire HTML\n            targetNode.innerHTML = htmlCache\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'Restored HTML from cache')()\n        } else {\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'No cache to restore')()\n        }\n    }\n\n    /** Save the current DOM state to browser localStorage.\n     * localStorage is persistent and so can be recovered even after a browser restart.\n     */\n    saveHtmlCache() {\n        // Save the updated entire HTML in localStorage\n        this.setStore('htmlCache', document.documentElement.innerHTML)\n    }\n\n    /** Use the Mutation Observer browser API to watch for and save changes to the HTML\n     * Once the observer is created, it will be reused.\n     * Sending true or undefined will turn on the observer, false turns it off.\n     * saveHtmlCache is called whenever anything changes in the dom. This allows\n     * users to call restoreHtmlFromCache() on page load if desired to completely reload\n     * to the last saved state.\n     * @param {boolean} startStop true=start watching the DOM, false=stop\n     */\n    watchDom(startStop) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.documentElement\n\n        // Need a ref to the Uib this\n        const that = this\n\n        // Create an observer instance\n        if (!this._htmlObserver) {\n            this._htmlObserver = new MutationObserver( function(/* mutationList, observer */) {\n                // We don't need to know the details - so kill off any outstanding mutation records\n                this.takeRecords()\n                // Save the updated entire HTML in localStorage\n                that.saveHtmlCache()\n            } )\n        }\n\n        if (startStop === true || startStop === undefined) {\n            // Start observing the target node for configured mutations\n            this._htmlObserver.observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:watchDom', 'Started Watching and saving DOM changes')()\n        } else {\n            this._htmlObserver.disconnect()\n            log('trace', 'uibuilder.module.js:watchDom', 'Stopped Watching and saving DOM changes')()\n        }\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- Message Handling (To/From Node-RED) -------- //\n\n    /** Internal send fn. Send a standard or control msg back to Node-RED via Socket.IO\n     * NR will generally expect the msg to contain a payload topic\n     * @param {object} msgToSend The msg object to send.\n     * @param {string} [channel=uiBuilderClient] The Socket.IO channel to use, must be in self.ioChannels or it will be ignored\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    _send(msgToSend, channel, originator = '') {\n        if (channel === null || channel === undefined) channel = this._ioChannels.client\n\n        // Make sure msgToSend is an object\n        if (channel === this._ioChannels.client) {\n            msgToSend = makeMeAnObject(msgToSend, 'payload')\n        } else if (channel === this._ioChannels.control) {\n            msgToSend = makeMeAnObject(msgToSend, 'uibuilderCtrl')\n            if (!Object.prototype.hasOwnProperty.call(msgToSend, 'uibuilderCtrl')) {\n                msgToSend.uibuilderCtrl = 'manual send'\n            }\n            // help remember where this came from as ctrl msgs can come from server or client\n            msgToSend.from = 'client'\n        }\n\n        /** since 2020-01-02 Added _socketId which should be the same as the _socketId on the server */\n        msgToSend._socketId = this._socket.id\n\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n\n        // Add the originator metadata if required\n        if (originator === '' && this.originator !== '') originator = this.originator\n        if (originator !== '') Object.assign(msgToSend, { '_uib': { 'originator': originator } })\n\n        // If the msg does not have a topic - see if we want to add one\n        if ( !Object.prototype.hasOwnProperty.call(msgToSend, 'topic') ) {\n            // From the default (`uibuilder.set('topic', 'some topic')`)\n            if (this.topic !== undefined && this.topic !== '') msgToSend.topic = this.topic\n            else {\n                // Did the last inbound msg have a topic?\n                if ( Object.prototype.hasOwnProperty.call(this, 'msg') && Object.prototype.hasOwnProperty.call(this.msg, 'topic') ) {\n                    msgToSend.topic = this.msg.topic\n                }\n            }\n        }\n\n        // If a standard send & _ui property exists, make sure to add _ui.from = 'client'\n        if (msgToSend._ui) msgToSend._ui.from = 'client'\n\n        // Track how many messages have been sent & last msg sent\n        let numMsgs\n        if (channel === this._ioChannels.client) {\n            this.set('sentMsg', msgToSend)\n            numMsgs = this.set('msgsSent', ++this.msgsSent)\n        } else if (channel === this._ioChannels.control) {\n            this.set('sentCtrlMsg', msgToSend)\n            numMsgs = this.set('msgsSentCtrl', ++this.msgsSentCtrl)\n        }\n        log('trace', 'Uib:_send', ` Channel '${channel}'. Sending msg #${numMsgs}`, msgToSend)()\n\n        this._socket.emit(channel, msgToSend)\n    } // --- End of Send Msg Fn --- //\n\n    /** Send a standard message to NR\n     * @example uibuilder.send({payload:'Hello'})\n     * @param {object} msg Message to send\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    send(msg, originator = '') {\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Send a control msg to NR\n     * @param {object} msg Message to send\n     */\n    sendCtrl(msg) {\n        this._send(msg, this._ioChannels.control)\n    }\n\n    /** Easily send a msg back to Node-RED on a DOM event\n     * @example In plain HTML/JavaScript\n     *    `<button id=\"button1\" name=\"button 1\" data-fred=\"jim\"></button>`\n     *    $('#button1').onclick = (evt) => {\n     *      uibuilder.eventSend(evt)\n     *    }\n     * @example\n     * In VueJS: `<b-button id=\"myButton1\" @click=\"doEvent\" data-something=\"hello\"></b-button>`\n     * In VueJS methods: `doEvent: uibuilder.eventSend,`\n     *\n     * All `data-` attributes will be passed back to Node-RED,\n     *    use them instead of arguments in the click function.\n     *    All target._ui custom properties are also passed back to Node-RED.\n     *\n     * @param {MouseEvent|any} domevent DOM Event object\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    eventSend(domevent, originator = '') { // eslint-disable-line sonarjs/cognitive-complexity\n        // @ts-ignore Handle case where vue messes up `this`\n        if ( this.$attrs ) {\n            log('error', 'Uib:eventSend', '`this` has been usurped by VueJS. Make sure that you wrap the call in a function: `doEvent: function (event) { uibuilder.eventSend(event) },`' )()\n            return\n        }\n        if (!domevent && !event) {\n            log('warn', 'Uib:eventSend', 'Neither the domevent nor the hidden event properties are set. You probably called this function directly rather than applying to an on click event.' )()\n            return\n        }\n        // Handle no argument, e.g. <button onClick=\"uibuilder.eventSend()\"> - event is a hidden variable when fn used in addEventListener\n        if (!domevent || !domevent.constructor) domevent = event\n\n        // The argument must be a DOM event\n        if ((!domevent.constructor.name.endsWith('Event')) || (!domevent.currentTarget)) {\n            log('warn', 'Uib:eventSend', `ARGUMENT NOT A DOM EVENT - use data attributes not function arguments to pass data. Arg Type: ${domevent.constructor.name}`, domevent)()\n            return\n        }\n\n        // Prevent default event action\n        domevent.preventDefault()\n\n        // The target element\n        const target = domevent.currentTarget\n\n        // Get target properties - only shows custom props not element default ones\n        const props = {}\n        Object.keys(target).forEach( key => {\n            if (key.startsWith('_')) return // Exclude private\n            props[key] = target[key]\n        })\n\n        // Attempt to get target attributs - can fail for certain target types\n        const ignoreAttribs = ['class', 'id', 'name']\n        let attribs\n        try {\n            attribs = Object.assign({},\n                ...Array.from(target.attributes,\n                    ( { name, value } ) => {\n                        if ( !ignoreAttribs.includes(name) ) {\n                            return ({ [name]: value })\n                        }\n                        return undefined\n                    }\n                )\n            )\n        } catch (e) {}\n\n        // If target embedded in a form, include the form data\n        let form\n        const frmVals = []\n        if ( target.form ) {\n            form = {}\n            form.valid = target.form.checkValidity()\n            Object.values(target.form).forEach( (frmEl, i) => {\n                const id = frmEl.id !== '' ? frmEl.id : (frmEl.name !== '' ? frmEl.name : `${i}-${frmEl.type}`)\n\n                // We must have both an element id (we may have forced one above) AND\n                // the element type MUST be not undefined - to allow for the extra properties added by frameworks such as Svelte\n                if (id !== '' && frmEl.type) {\n                    // Stupid HTML doesn't use value attrib for checkboxes. So override if value is set to default\n                    if ('checked' in frmEl && frmEl.value === 'on') frmEl.value = frmEl.checked.toString()\n\n                    frmVals.push( { key: id, val: frmEl.value } ) // simplified for addition to msg.payload\n\n                    form[id] = {\n                        'id': frmEl.id,\n                        'name': frmEl.name,\n                        'value': frmEl.value,\n                        'valid': frmEl.checkValidity(),\n                        'type': frmEl.type,\n                    }\n\n                    if (form[id].valid === false) {\n                        const v = frmEl.validity\n                        form[id].validity = {\n                            badInput: v.badInput === true ? v.badInput : undefined,\n                            customError: v.customError === true ? v.customError : undefined,\n                            patternMismatch: v.patternMismatch === true ? v.patternMismatch : undefined,\n                            rangeOverflow: v.rangeOverflow === true ? v.rangeOverflow : undefined,\n                            rangeUnderflow: v.rangeUnderflow === true ? v.rangeUnderflow : undefined,\n                            stepMismatch: v.stepMismatch === true ? v.stepMismatch : undefined,\n                            tooLong: v.tooLong === true ? v.tooLong : undefined,\n                            tooShort: v.tooShort === true ? v.tooShort : undefined,\n                            typeMismatch: v.typeMismatch === true ? v.typeMismatch : undefined,\n                            valueMissing: v.valueMissing === true ? v.valueMissing : undefined,\n                        }\n                    }\n\n                    if (frmEl.dataset) form[id].data = frmEl.dataset\n                }\n            })\n        }\n\n        // Check for CSS Classes\n        let classes\n        try {\n            classes = Array.from(target.classList)\n        } catch (e) {}\n\n        // Each `data-xxxx` attribute is added as a property\n        let payload = { ...target.dataset }\n\n        // Handle Notification events\n        let nprops\n        if ( Object.prototype.toString.call(target) === '[object Notification]') {\n            // Fixed payload for convenience\n            payload = `notification-${target.userAction}`\n            // Capture the notification properties\n            nprops = {\n                // userAction: target.userAction, // uib custom prop: click, close or error\n                actions: target.actions,\n                badge: target.badge,\n                body: target.body,\n                data: target.data,\n                dir: target.dir,\n                icon: target.icon,\n                image: target.image,\n                lang: target.lang,\n                renotify: target.renotify,\n                requireInteraction: target.requireInteraction,\n                silent: target.silent,\n                tag: target.tag,\n                timestamp: target.timestamp,\n                title: target.title,\n                vibrate: target.vibrate,\n            }\n        }\n        // console.log(Object.prototype.toString.call(target))\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            // - this may be an empty Object if no data attributes defined\n            payload: payload,\n\n            _ui: {\n                type: 'eventSend',\n                id: target.id !== '' ? target.id : undefined,\n                name: target.name !== '' ? target.name : undefined,\n                slotText: target.textContent ? target.textContent.substring(0, 255) : undefined,\n\n                form: form,\n                props: props,\n                attribs: attribs,\n                classes: classes,\n\n                notification: nprops,\n\n                event: domevent.type,\n                altKey: domevent.altKey,\n                ctrlKey: domevent.ctrlKey,\n                shiftKey: domevent.shiftKey,\n                metaKey: domevent.metaKey,\n\n                pointerType: domevent.pointerType,\n                nodeName: target.nodeName,\n\n                clientId: this.clientId,\n                pageName: this.pageName,\n                tabId: this.tabId,\n            }\n        }\n\n        if (frmVals.length > 0) {\n            frmVals.forEach( entry => {\n                msg.payload[entry.key] = entry.val\n            })\n        }\n\n        if (domevent.type === 'change') {\n            // Checkboxes don't have a value!!\n            msg._ui.newValue = msg.payload.value = 'checked' in target ? target.checked : domevent.target.value\n        }\n\n        log('trace', 'Uib:eventSend', 'Sending msg to Node-RED', msg)()\n        if (target.dataset && target.dataset.length === 0) log('warn', 'Uib:eventSend', 'No payload in msg. data-* attributes should be used.')()\n\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Easily send the entire DOM/HTML msg back to Node-RED\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     * @param {boolean} [send] If true (default) directly send response to Node-RED. Is false when calling from Node-RED as a command.\n     * @returns {string} The HTML as a string\n     */\n    htmlSend(originator = '', send = true) {\n        const out = `<!doctype html>\\n${document.documentElement.outerHTML}`\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            payload: out,\n            length: out.length,\n            topic: this.topic,\n        }\n\n        log('trace', 'Uib:htmlSend', 'Sending full HTML to Node-RED', msg)()\n\n        if (send === true) this._send(msg, this._ioChannels.client, originator)\n        return out\n    }\n\n    /** Process msg._uib.command - Remember to update #extCommands with new allowed commands\n     * @param {object} msg Msg from Node-RED containing a msg._uib object\n     */\n    _uibCommand(msg) {\n        if (!msg._uib || !msg._uib.command) {\n            log('error', 'uibuilder:_uibCommand', 'Invalid command message received', { msg })()\n            msg.payload = msg.error = 'Invalid command message received'\n            this.send(msg)\n            return\n        }\n        const cmd = msg._uib.command\n        // Disallowed command request outputs error and ignores the msg (NB: Case must match)\n        if (!this.#extCommands.includes(cmd.trim())) {\n            log('error', 'Uib:_uibCommand', `Command '${cmd} is not allowed to be called externally`)()\n            return\n        }\n        const prop = msg._uib.prop\n        const value = msg._uib.value\n        const quiet = msg._uib.quiet ?? false\n        let response, info\n\n        // Don't forget to update `#extCommands`, `docs/client-docs/control-from-node-red.md` & `functions.md`\n        switch (cmd) {\n            case 'elementIsVisible': {\n                response = this.elementIsVisible(prop)\n                // info = `Element \"${prop}\" ${response ? 'is visible' : 'is not visible'}`\n                break\n            }\n\n            case 'elementExists': {\n                response = this.elementExists(prop, false)\n                info = `Element \"${prop}\" ${response ? 'exists' : 'does not exist'}`\n                break\n            }\n\n            case 'get': {\n                response = this.get(prop)\n                break\n            }\n\n            case 'getManagedVarList': {\n                if (prop === 'full') response = this.getManagedVarList()\n                else response = Object.values(this.getManagedVarList())\n                break\n            }\n\n            case 'getWatchedVars': {\n                if (prop === 'full') response = this.getWatchedVars()\n                else response = Object.values(this.getWatchedVars())\n                break\n            }\n\n            case 'htmlSend': {\n                response = this.htmlSend('', false)\n                break\n            }\n\n            case 'include': {\n                // include is async\n                response = _ui.include(prop, value)\n                break\n            }\n\n            case 'navigate': {\n                let newUrl\n                if (prop) newUrl = prop\n                else if (value) newUrl = value\n                response = this.navigate(newUrl)\n                break\n            }\n\n            case 'scrollTo': {\n                response = this.scrollTo(prop, value)\n                break\n            }\n\n            case 'set': {\n                let store = false\n                let autoload = false\n                if (msg._uib.options && msg._uib.options.store) {\n                    if (msg._uib.options.store === true) store = true\n                    if (msg._uib.options.autoload === true) autoload = true\n                }\n                response = this.set(prop, value, store, autoload)\n                break\n            }\n\n            case 'showMsg': {\n                response = this.showMsg(value, prop)\n                break\n            }\n\n            case 'showStatus': {\n                response = this.showStatus(value, prop)\n                break\n            }\n\n            case 'uiGet': {\n                response = _ui.uiGet(prop, value)\n                break\n            }\n\n            case 'uiWatch': {\n                response = this.uiWatch(prop)\n                break\n            }\n\n            case 'watchUrlHash': {\n                response = this.watchUrlHash(prop)\n                break\n            }\n\n            default: {\n                log('warning', 'Uib:_uibCommand', `Command '${cmd}' not yet implemented`)()\n                break\n            }\n        }\n\n        if (quiet !== true) {\n            if (response === undefined) {\n                response = `'${prop}' is undefined`\n            }\n            if (Object(response).constructor === Promise) {\n                // response = `'${cmd} ${prop}' submitted. Cmd is async, no response available`\n                response\n                    .then( (/** @type {any} */ data) => {\n                        msg.payload = msg._uib.response = data\n                        msg.info = msg._uib.info = info\n                        if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                        this.send(msg)\n                        return true\n                    })\n                    .catch( err => {\n                        log(0, 'Uib:_uibCommand', 'Error: ', err)()\n                    })\n            } else {\n                msg.payload = msg._uib.response = response\n                msg.info = msg._uib.info = info\n                if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                this.send(msg)\n            }\n        }\n    } // --- end of _uibCommand ---\n\n    /** Do we want to process something? Check pageName, clientId, tabId. Defaults to yes.\n     * @param {*} obj Either a msg._ui or msg._uib object to check\n     * @returns {boolean} True if we should process the inbound _ui/_uib msg, false if not.\n     */\n    _forThis(obj) {\n        let r = true\n\n        // Is this msg for this pageName?\n        if (obj.pageName && obj.pageName !== this.pageName) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this page')()\n            r = false\n        }\n\n        // Is this msg for this clientId?\n        if (obj.clientId && obj.clientId !== this.clientId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this clientId')()\n            r = false\n        }\n\n        // Is this msg for this tabId?\n        if (obj.tabId && obj.tabId !== this.tabId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this tabId')()\n            r = false\n        }\n\n        return r\n    }\n\n    // Handle received messages - Process some msgs internally, emit specific events on document that make it easy for coders to use\n    _msgRcvdEvents(msg) {\n        // Message received\n        this._dispatchCustomEvent('uibuilder:stdMsgReceived', msg)\n\n        // Topic\n        if ( msg.topic ) this._dispatchCustomEvent(`uibuilder:msg:topic:${msg.topic}`, msg)\n\n        // Handle msg._uib special requests\n        if (msg._uib) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._uib)) return\n\n            /** Process a client reload request from Node-RED - as the page is reloaded, everything else is ignored\n             * Note that msg._ui.reload is also actioned via the _ui processing below */\n            if (msg._uib.reload === true) {\n                log('trace', 'Uib:_msgRcvdEvents:_uib:reload', 'reloading')()\n                location.reload()\n                return\n            }\n\n            // Process msg._uib.command messages - allows Node-RED to run uibuilder FE functions\n            if (msg._uib.command) {\n                this._uibCommand(msg)\n                return\n            }\n\n            // Better to request via msg._ui - these are for backwards compatibility\n            if ( msg._uib.componentRef === 'globalNotification' ) {\n                _ui.showDialog('notify', msg._uib.options, msg)\n            }\n            if ( msg._uib.componentRef === 'globalAlert' ) {\n                _ui.showDialog('alert', msg._uib.options, msg)\n            }\n        }\n\n        // Handle msg._ui requests\n        if ( msg._ui ) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._ui)) return\n\n            log('trace', 'Uib:_msgRcvdEvents:_ui', 'Calling _uiManager')()\n            this._dispatchCustomEvent('uibuilder:msg:_ui', msg)\n            _ui._uiManager(msg)\n        }\n    } // --- end of _msgRcvdEvents ---\n\n    /** Callback handler for messages from Node-RED\n     * NOTE: `this` is the class here rather the `socket` as would be normal since we bind the correct `this` in the call.\n     *       Use this._socket if needing reference to the socket.\n     * @callback ioSetupFromServer Called from ioSetup/this._socket.on(this.#ioChannels.server, this.stdMsgFromServer.bind(this))\n     * @param {object} receivedMsg The msg object from Node-RED\n     * @this Uib\n     */\n    _stdMsgFromServer(receivedMsg) {\n\n        // Make sure that msg is an object & not null\n        receivedMsg = makeMeAnObject(receivedMsg, 'payload')\n\n        // Don't process if the inbound msg is not for us\n        if (receivedMsg._uib && !this._forThis(receivedMsg._uib)) return\n        if (receivedMsg._ui && !this._forThis(receivedMsg._ui)) return\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedMsg)\n\n        // Track how many messages have been received\n        this.set('msgsReceived', ++this.msgsReceived)\n\n        // Emit specific document events on msg receipt that make it easy for coders to use\n        this._msgRcvdEvents(receivedMsg)\n\n        if ( !('_ui' in receivedMsg && !('payload' in receivedMsg)) ) {\n            // Save the msg for further processing\n            this.set('msg', receivedMsg)\n        }\n\n        log('info', 'Uib:ioSetup:stdMsgFromServer', `Channel '${this._ioChannels.server}'. Received msg #${this.msgsReceived}.`, receivedMsg)()\n\n        // ! NOTE: Don't try to handle specialist messages here. See _msgRcvdEvents.\n\n    } // -- End of websocket receive DATA msg from Node-RED -- //\n\n    /** Handles original control msgs (not to be confused with \"new\" msg._uib controls)\n     * @param {*} receivedCtrlMsg The msg received on the socket.io control channel\n     */\n    _ctrlMsgFromServer(receivedCtrlMsg) {\n\n        // Make sure that msg is an object & not null\n        if (receivedCtrlMsg === null) {\n            receivedCtrlMsg = {}\n        } else if (typeof receivedCtrlMsg !== 'object') {\n            const msg = {}\n            msg['uibuilderCtrl:' + this._ioChannels.control] = receivedCtrlMsg\n            receivedCtrlMsg = msg\n        }\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedCtrlMsg)\n\n        this.set('ctrlMsg', receivedCtrlMsg)\n        this.set('msgsCtrlReceived', ++this.msgsCtrlReceived)\n\n        log('trace', 'Uib:ioSetup:_ctrlMsgFromServer', `Channel '${this._ioChannels.control}'. Received control msg #${this.msgsCtrlReceived}`, receivedCtrlMsg)()\n\n        /** Process control msg types */\n        switch (receivedCtrlMsg.uibuilderCtrl) {\n            // Node-RED is shutting down\n            case 'shutdown': {\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, '\u274C Received \"shutdown\" from server')()\n                this.set('serverShutdown', undefined)\n                break\n            }\n\n            /** We are connected to the server - 1st msg from server */\n            case 'client connect': {\n                log('trace', `Uib:ioSetup:${this._ioChannels.control}`, 'Received \"client connect\" from server')()\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, `\u2705 Server connected. Version: ${receivedCtrlMsg.version}\\nServer time: ${receivedCtrlMsg.serverTimestamp}, Sever time offset: ${this.serverTimeOffset} hours`)()\n\n                if ( !Uib._meta.version.startsWith(receivedCtrlMsg.version.split('-')[0]) ) {\n                    log('warn', `Uib:ioSetup:${this._ioChannels.control}`, `Server version (${receivedCtrlMsg.version}) not the same as the client version (${Uib._meta.version})`)()\n                }\n\n                if (this.autoSendReady === true) { // eslint-disable-line no-lonely-if\n                    log('trace', `Uib:ioSetup:${this._ioChannels.control}/client connect`, 'Auto-sending ready-for-content/replay msg to server')\n                    // @since 0.4.8c Add cacheControl property for use with node-red-contrib-infocache\n                    // @since 6.1.0 Don't bother, we use the \"client connect\" msg\n                    // this._send({\n                    //     'uibuilderCtrl': 'ready for content',\n                    //     'cacheControl': 'REPLAY',\n                    // }, this._ioChannels.control)\n                }\n\n                break\n            }\n\n            default: {\n                log('trace', `uibuilderfe:ioSetup:${this._ioChannels.control}`, `Received ${receivedCtrlMsg.uibuilderCtrl} from server`)\n                // Anything else to do for other control msgs?\n            }\n\n        } // ---- End of process control msg types ---- //\n\n    } // -- End of websocket receive CONTROL msg from Node-RED -- //\n\n    /** Send log text to uibuilder's beacon endpoint (works even if socket.io not connected)\n     * @param {string} txtToSend Text string to send\n     * @param {string|undefined} logLevel Log level to use. If not supplied, will default to debug\n     */\n    beaconLog(txtToSend, logLevel) {\n        if (!logLevel) logLevel = 'debug'\n        navigator.sendBeacon('./_clientLog', `${logLevel}::${txtToSend}`)\n    }\n\n    /** Send log info back to Node-RED over uibuilder's websocket control output (Port #2)\n     * @param {...*} arguments All arguments passed to the function are added to the msg.payload\n     */\n    logToServer() {\n        this.sendCtrl({\n            uibuilderCtrl: 'client log message',\n            payload: arguments,\n            // \"version\":\"6.1.0-iife.min\",\n            _socketId: this._socket.id,\n            // \"ip\":\"::1\",\n            clientId: this.clientId,\n            tabId: this.tabId,\n            // \"url\":\"esp-test\",\n            pageName: this.pageName,\n            connections: this.connectedNum,\n            lastNavType: this.lastNavType,\n        })\n    }\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Socket.IO -------- //\n\n    /** Return the Socket.IO namespace\n     * The cookie method is the most reliable but this falls back to trying to work it\n     * out from the URL if cookies not available. That won't work if page is in a sub-folder.\n     * since 2017-10-21 Improve method to cope with more complex paths - thanks to Steve Rickus @shrickus\n     * since 2017-11-10 v1.0.1 Check cookie first then url. cookie works even if the path is more complex (e.g. sub-folder)\n     * since 2020-01-25 Removed httpRoot from namespace to prevent proxy induced errors\n     * @returns {string} Socket.IO namespace\n     */\n    _getIOnamespace() {\n\n        let ioNamespace\n\n        /** Try getting the namespace cookie. */\n        ioNamespace = this.cookies['uibuilder-namespace']\n\n        // if it wasn't available, try using the current url path\n        if (ioNamespace === undefined || ioNamespace === '') {\n            // split url path & eliminate any blank elements, and trailing or double slashes\n            const u = window.location.pathname.split('/')\n                .filter(function (t) { return t.trim() !== '' })\n\n            /** since v2.0.5 Extra check for 0 length, Issue #73. since 2017-11-06 If the last element of the path is an .html file name, remove it */\n            if (u.length > 0 && (u[u.length - 1].endsWith('.html'))) u.pop()\n\n            // Get the last part of the url path, this MUST match the namespace in uibuilder\n            ioNamespace = u.pop()\n\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via url path: ${ioNamespace}`)()\n        } else {\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via cookie: ${ioNamespace}`)()\n        }\n\n        this.url = ioNamespace\n        // Namespace HAS to start with a /\n        ioNamespace = '/' + ioNamespace\n\n        log('trace', 'uibuilder.module.js:getIOnamespace', `Final Socket.IO namespace: ${ioNamespace}`)()\n\n        return ioNamespace\n    } // --- End of set IO namespace --- //\n\n    /** Function used to check whether Socket.IO is connected to the server, reconnect if not (recursive)\n     * @param {number} [delay] Initial delay before checking (ms). Default=2000ms\n     * @param {number} [factor] Multiplication factor for subsequent checks (delay*factor). Default=1.5\n     * @param {number} [depth] Recursion depth\n     * @returns {boolean|undefined} Whether or not Socket.IO is connected to uibuilder in Node-RED\n     */\n    _checkConnect(delay, factor, depth = 1) {\n        if ( navigator.onLine === false ) return // Don't bother if we know we are offline\n\n        if (!delay) delay = this.retryMs\n        if (!factor) factor = this.retryFactor\n\n        log('trace', 'Uib:checkConnect', `Checking connection. Connected: ${this._socket.connected}. Timer: ${this.#timerid}. Depth: ${depth}. Delay: ${delay}. Factor: ${factor}`, this._socket)()\n\n        // If we are connected ...\n        if (this._socket.connected === true) {\n            // Clear the setTimeout\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this.set('ioConnected', true)\n            this.set('socketError', null)\n            return true\n        }\n\n        // ... we aren't connected so:\n        this.set('ioConnected', false)\n\n        // we only want one running at a time\n        if (this.#timerid) window.clearTimeout(this.#timerid)\n\n        // Create the new timer\n        this.#timerid = window.setTimeout(() => {\n            log('warn', 'Uib:checkConnect:setTimeout', `Socket.IO reconnection attempt. Current delay: ${delay}. Depth: ${depth}`)()\n\n            // this is necessary sometimes when the socket fails to connect on startup\n            this._socket.close()\n\n            // Try to reconnect\n            this._socket.connect()\n\n            // don't need to check whether we have connected as the timer will have been cleared if we have\n            this.#timerid = null\n\n            // @ts-ignore Create new timer for next time round with extended delay\n            this._checkConnect(delay * factor, factor, depth++)\n        }, delay)\n\n        return false\n    } // --- End of checkConnect Fn--- //\n\n    // See message handling section for msg receipt handlers\n\n    /** Called by _ioSetup when Socket.IO connects to Node-RED */\n    _onConnect() {\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n        log('info', 'Uib:ioSetup', `\u2705 SOCKET CONNECTED. Connection count: ${this.connectedNum}, Is a Recovery?: ${this._socket.recovered}. \\nNamespace: ${this.ioNamespace}`)()\n        this._dispatchCustomEvent('uibuilder:socket:connected', { 'numConnections': this.connectedNum, 'isRecovery': this._socket.recovered })\n\n        this._checkConnect() // resets any reconnection timers & sets connected flag\n    }\n\n    /** Called by _ioSetup when Socket.IO disconnects from Node-RED\n     * @param {string} reason Disconnection title\n     */\n    _onDisconnect(reason) {\n        // reason === 'io server disconnect' - redeploy of Node instance\n        // reason === 'transport close' - Node-RED terminating\n        // reason === 'ping timeout' - didn't receive a pong response?\n        log('info', 'Uib:ioSetup:socket-disconnect', `\u26D4 Socket Disconnected. Reason: ${reason}`)()\n\n        this._dispatchCustomEvent('uibuilder:socket:disconnected', reason)\n\n        /** A workaround for SIO's failure to reconnect after a disconnection */\n        this._checkConnect()\n    }\n\n    /** Setup Socket.io\n     * since v2.0.0-beta2 Moved to a function and called by the user (uibuilder.start()) so that namespace & path can be passed manually if needed\n     * @returns {boolean} Attaches socket.io manager to self._socket and updates self.ioNamespace & self.ioPath as needed\n     */\n    _ioSetup() {\n\n        // Just a notification, actual load is done outside the class (see start of file)\n        if (io === undefined) {\n            log('error', 'Uib:ioSetup', 'Socket.IO client not loaded, Node-RED comms will not work')()\n            return false\n        }\n\n        // If socket is already set up, close it and remove all of the listeners\n        if (this._socket) {\n            log('trace', 'Uib:ioSetup', 'Removing listeners in preparation for redoing Socket.IO connections')()\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this._socket.close()\n            this._socket.offAny()\n            this._socket = undefined\n            this.set('ioConnected', false)\n        }\n\n        // Update the URL path to make sure we have the right one\n        this.socketOptions.path = this.ioPath\n\n        // NOTE: this._socket.auth is now set by callback and so automatically updated for each client (re)connection. No need to set here\n\n        // Create the socket - make sure client uses Socket.IO version from the uibuilder module (using path)\n        log('trace', 'Uib:ioSetup', `About to create IO object. Transports: [${this.socketOptions.transports.join(', ')}]`)()\n        this._socket = io(this.ioNamespace, this.socketOptions)\n\n        /** When the socket is connected - set ioConnected flag and reset connect timer  */\n        this._socket.on('connect', this._onConnect.bind(this))\n\n        // RECEIVE a STANDARD, non-control msg from Node-RED server\n        this._socket.on(this._ioChannels.server, this._stdMsgFromServer.bind(this))\n\n        // RECEIVE a CONTROL msg from Node-RED server - see also sendCtrl()\n        this._socket.on(this._ioChannels.control, this._ctrlMsgFromServer.bind(this))\n\n        // When the socket is disconnected ..............\n        this._socket.on('disconnect', this._onDisconnect.bind(this))\n\n        // Socket.io connection error - probably the wrong ioPath - or client is offline\n        this._socket.on('connect_error', (err) => {\n            if ( navigator.onLine === false ) return // Don't bother with an error if we know we are offline\n            log('error', 'Uib:ioSetup:connect_error', `\u274C Socket.IO Connect Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket connect error processing ---\n\n        // Socket.io error - from the server (socket.use middleware triggered an error response)\n        this._socket.on('error', (err) => {\n            log('error', 'Uib:ioSetup:error', `\u274C Socket.IO Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket error processing ---\n\n        // Ensure we are connected, retry if not\n        this._checkConnect()\n\n        return true\n\n        /* We really don't need these, just for interest\n            self._socket.io.on('packet', function onPacket(data){\n                // we get one of these for each REAL msg (not ping/pong)\n                console.debug('PACKET', data)\n            })\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n                //console.dir(self._socket)\n            }) // --- End of socket pong processing ---\n            self._socket.io.on('packet', function(data){\n                // We get one of these for actual messages, not ping/pong\n                console.debug('PACKET', data)\n            })\n            self._socket.on('connect_timeout', function(timeout) {\n                console.debug('SOCKET CONNECT TIMEOUT - Namespace: ' + ioNamespace + ', Timeout: ' + timeout)\n            }) // --- End of socket connect timeout processing ---\n            self._socket.on('reconnect', function(attemptNum) {\n                console.debug('SOCKET RECONNECTED - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect processing ---\n            self._socket.on('reconnect_attempt', function(attemptNum) {\n                console.debug('SOCKET RECONNECT ATTEMPT - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect_attempt processing ---\n            self._socket.on('reconnecting', function(attemptNum) {\n                console.debug('SOCKET RECONNECTING - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnecting processing ---\n            self._socket.on('reconnect_error', function(err) {\n                console.debug('SOCKET RECONNECT ERROR - Namespace: ' + ioNamespace + ', Reason: ' + err.message)\n                //console.dir(err)\n            }) // --- End of socket reconnect_error processing ---\n            self._socket.on('reconnect_failed', function() {\n                console.debug('SOCKET RECONNECT FAILED - Namespace: ' + ioNamespace)\n            }) // --- End of socket reconnect_failed processing ---\n            self._socket.on('ping', function() {\n                console.debug('SOCKET PING')\n            }) // --- End of socket ping processing ---\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n            }) // --- End of socket pong processing ---\n            */\n    } // ---- End of ioSetup ---- //\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Class construction & startup method -------- //\n\n    constructor() {\n        log('trace', 'Uib:constructor', 'Starting')()\n\n        // Track whether the client is online or offline\n        window.addEventListener('offline', (e) => {\n            this.set('online', false)\n            this.set('ioConnected', false)\n            log('warn', 'Browser', 'DISCONNECTED from network')()\n        })\n        window.addEventListener('online', (e) => {\n            this.set('online', true)\n            log('warn', 'Browser', 'Reconnected to network')()\n            this._checkConnect()\n        })\n\n        document.cookie.split(';').forEach((c) => {\n            const splitC = c.split('=')\n            this.cookies[splitC[0].trim()] = splitC[1]\n        })\n\n        /** Client ID set by uibuilder - lasts until browser profile is closed, applies to all tabs */\n        this.set('clientId', this.cookies['uibuilder-client-id'])\n        log('trace', 'Uib:constructor', 'Client ID: ', this.clientId)()\n\n        /** Tab ID - lasts while the tab is open (even if reloaded)\n         * WARNING: Duplicating a tab retains the same tabId\n         */\n        this.set('tabId', window.sessionStorage.getItem('tabId'))\n        if (!this.tabId) {\n            this.set('tabId', `t${Math.floor(Math.random() * 1000000)}`)\n            window.sessionStorage.setItem('tabId', this.tabId)\n        }\n\n        // document.addEventListener('pagehide', (event) => {\n        //     // console.log(`pagehide. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pagehide. From Cache?: ${event.persisted}`)\n        // })\n        // document.addEventListener('pageshow', (event) => {\n        //     // console.log(`pageshow. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pageshow. From Cache?: ${event.persisted}`)\n        // })\n        document.addEventListener('load', () => {\n            this.set('isVisible', true)\n        })\n        document.addEventListener('visibilitychange', () => {\n            // hidden=unload, minimise. visible=un-minimise (not fired on load)\n            this.set('isVisible', document.visibilityState === 'visible')\n            this.sendCtrl({ uibuilderCtrl: 'visibility', isVisible: this.isVisible })\n            // navigator.userActivation is experimental Chromium only\n            // console.log('visibilitychange', ':', `Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n            // navigator.sendBeacon('./_clientLog', `${(new Date()).toISOString()} Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n        })\n\n        // Set a listener to update showStatus table if it is active\n        document.addEventListener('uibuilder:propertyChanged', (event) => {\n            if (!this.#isShowStatus) return\n\n            // @ts-ignore\n            if (event.detail.prop in this.#showStatus) {\n                // @ts-ignore\n                document.querySelector(`td[data-vartype=\"${event.detail.prop}\"]`).innerText = JSON.stringify(event.detail.value)\n            }\n        })\n\n        this.set('ioNamespace', this._getIOnamespace())\n\n        //#region - Try to make sure client uses Socket.IO client version from the uibuilder module (using cookie or path) @since v2.0.0 2019-02-24 allows for httpNodeRoot\n\n        /** httpNodeRoot (to set path) */\n        if ('uibuilder-webRoot' in this.cookies) {\n            this.set('httpNodeRoot', this.cookies['uibuilder-webRoot'])\n            log('trace', 'Uib:constructor', `httpNodeRoot set by cookie to \"${this.httpNodeRoot}\"`)()\n        } else {\n            // split current url path, eliminate any blank elements and trailing or double slashes\n            const fullPath = window.location.pathname.split('/').filter(function (t) { return t.trim() !== '' })\n            /** handle url includes file name - @since v2.0.5 Extra check for 0 length, Issue #73. */\n            if (fullPath.length > 0 && fullPath[fullPath.length - 1].endsWith('.html')) fullPath.pop()\n            fullPath.pop() // gives the last path section of the url\n            this.set('httpNodeRoot', `/${fullPath.join('/')}`)\n            log('trace', '[Uib:constructor]', `httpNodeRoot set by URL parsing to \"${this.httpNodeRoot}\". NOTE: This may fail for pages in sub-folders.`)()\n        }\n        this.set('ioPath', urlJoin(this.httpNodeRoot, Uib._meta.displayName, 'vendor', 'socket.io'))\n        log('trace', 'Uib:constructor', `ioPath: \"${this.ioPath}\"`)()\n\n        //#endregion\n\n        // Work out pageName\n        this.set('pageName', window.location.pathname.replace(`${this.ioNamespace}/`, ''))\n        if ( this.pageName.endsWith('/') ) this.set('pageName', `${this.pageName}index.html`)\n        if ( this.pageName === '' ) this.set('pageName', 'index.html')\n\n        // Attempt to restore autoload variables\n        try {\n            const autoloadVars = this.getStore('_uibAutoloadVars')\n            if (Object.keys(autoloadVars).length > 0) {\n                Object.keys(autoloadVars).forEach( (id) => {\n                    this.set(id, this.getStore(id))\n                })\n            }\n        } catch (e) {}\n\n        this._dispatchCustomEvent('uibuilder:constructorComplete')\n\n        log('trace', 'Uib:constructor', 'Ending')()\n    }\n\n    /** Start up Socket.IO comms and listeners\n     * This has to be done separately because if running from a web page in a sub-folder of src/dist, uibuilder cannot\n     * necessarily work out the correct ioPath to use.\n     * Also, if cookies aren't permitted in the browser, both ioPath and ioNamespace may need to be specified.\n     * @param {object} [options] The start options object.\n     * @returns {void}\n     */\n    start(options) {\n        log('trace', 'Uib:start', 'Starting')()\n\n        // Cancel the msg event handler if already present\n        if ( this.#MsgHandler ) this.cancelChange('msg', this.#MsgHandler)\n\n        if (this.started === true) {\n            log('info', 'Uib:start', 'Start function already called. Resetting Socket.IO and msg handler.')()\n        }\n\n        log('log', 'Uib:start', 'Cookies: ', this.cookies, `\\nClient ID: ${this.clientId}`)()\n        log('trace', 'Uib:start', 'ioNamespace: ', this.ioNamespace, `\\nioPath: ${this.ioPath}`)()\n\n        // Handle options\n        if (options) {\n            if (options.ioNamespace !== undefined && options.ioNamespace !== null && options.ioNamespace !== '') this.set('ioNamespace', options.ioNamespace)\n            if (options.ioPath !== undefined && options.ioPath !== null && options.ioPath !== '') this.set('ioPath', options.ioPath)\n            // See below for handling of options.loadStylesheet\n        }\n\n        // Do we need to load styles?\n        if ( document.styleSheets.length >= 1 || (document.styleSheets.length === 1 && document.styleSheets[0].cssRules.length === 0) ) {\n            log('info', 'Uib:start', 'Styles already loaded so not loading uibuilder default styles.')()\n        } else {\n            if (options && options.loadStylesheet === false) log('info', 'Uib:start', 'No styles loaded & options.loadStylesheet === false.')()\n            else {\n                log('info', 'Uib:start', 'No styles loaded, loading uibuilder default styles.')()\n                this.loadStyleSrc(`${this.httpNodeRoot}/uibuilder/uib-brand.min.css`)\n            }\n        }\n\n        /** Handle specialist messages like reload and _ui -> Moved to _msgRcvdEvents */\n\n        // Track last browser navigation type: navigate, reload, back_forward, prerender\n        const [entry] = performance.getEntriesByType('navigation')\n        // @ts-ignore\n        this.set('lastNavType', entry.type)\n\n        // Start up (or restart) Socket.IO connections and listeners. Returns false if io not found\n        this.set('started', this._ioSetup())\n\n        if ( this.started === true ) {\n            log('trace', 'Uib:start', 'Start completed. Socket.IO client library loaded.')()\n        } else {\n            log('error', 'Uib:start', 'Start completed. ERROR: Socket.IO client library NOT LOADED.')()\n        }\n\n        // Watch for URL hash changes in case using a front-end router. Updates watched var `urlHash` and socket.io `auth.urlHash`\n        this._watchHashChanges()\n\n        // Check if Vue is present (used for dynamic UI processing)\n        if (window['Vue']) {\n            this.set('isVue', true)\n            try {\n                this.set('vueVersion', window['Vue'].version)\n            } catch (e) { }\n            log('trace', 'Uib:start', `VueJS is loaded. Version: ${this.vueVersion}`)()\n        } else {\n            log('trace', 'Uib:start', 'VueJS is not loaded.')()\n        }\n\n        // Check if DOMPurify library is loaded\n        if (window['DOMPurify']) {\n            this.set('purify', true)\n            log('trace', 'Uib:start', 'DOMPurify is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'DOMPurify is not loaded.')()\n        }\n        // Check if Markdown-IT library is loaded\n        if (window['markdownit']) {\n            this.set('markdown', true)\n            log('trace', 'Uib:start', 'Markdown-IT is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'Markdown-IT is not loaded.')()\n        }\n\n        // if (window['DOMPurify']) {\n        //     this.set('purify', true)\n        //     log('trace', 'Uib:start', 'DOMPurify is loaded.')\n        // } else {\n        //     log('trace', 'Uib:start', 'DOMPurify is not loaded.')\n        // }\n\n        // Set up msg listener for the optional showMsg\n        this.onChange('msg', (msg) => {\n            if (this.#isShowMsg === true) {\n                const eMsg = document.getElementById('uib_last_msg')\n                if (eMsg) eMsg.innerHTML = this.syntaxHighlight(msg)\n            }\n        })\n\n        this._dispatchCustomEvent('uibuilder:startComplete')\n    }\n\n    //#endregion -------- ------------ -------- //\n} // ==== End of Class Uib ====\n\n//#region --- Wrap up - get things started ---\n\n// Create an instance (we will only ever want one)\nconst uibuilder = new Uib()\n\n// Assign reference to the instance to the global `window` object\n// Only useful if loading via <script> tag - prefer loading via `import uibuilder from ...`\nif (!window['uibuilder']) {\n    window['uibuilder'] = uibuilder\n} else {\n    log('error', 'uibuilder.module.js', '`uibuilder` already assigned to window. Have you tried to load it more than once?')\n}\nif (!window['uib']) {\n    window['uib'] = uibuilder\n} else {\n    log('warn', 'uibuilder.module.js', '`uib` shortcut already assigned to window.')\n}\n\n// Assign `$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$`.\nif (!window['$']) {\n    /** @type {HTMLElement} */\n    window['$'] = window['uibuilder'].$ // document.querySelector.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` instead.')\n}\n// Assign `$$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$$']) {\n    /** @type {HTMLElement} */\n    window['$$'] = window['uibuilder'].$$ // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` instead.')\n}\n\n// Can import as `import uibuilder from ...` OR `import {uibuilder} from ...`\nexport { uibuilder }\nexport default uibuilder\n\n// Attempt to run start fn\nuibuilder.start()\n\n// Add the class as a new Custom Element to the window object\ncustomElements.define('uib-var', UibVar)\n\n//#endregion --- Wrap up ---\n\n// EOF\n", "/** A zero dependency web component that will display a managed uibuilder variable.\n *\n * Version: 0.0.1 2023-10-07\n *\n * ToDo:\n * -\n */\n/*\n  Copyright (c) 2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n// const template = document.createElement('template')\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<link type=\"text/css\" rel=\"stylesheet\" href=\"\"../uibuilder/uib-brand.min.css\"\" media=\"all\"><span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`\n// {/* <style>@import url(\"../uibuilder/uib-brand.min.css\");</style><span></span> */}\n// `\n\nexport default class UibVar extends HTMLElement {\n    //#region --- Class Properties ---\n    /** @type {string} Name of the uibuilder mangaged variable to use */\n    variable\n    /** Current value of the watched variable */\n    value\n    /** Whether to output if the variable is undefined */\n    undefined = false\n    /** Whether to send update value to Node-RED on change */\n    report = false\n    /** What is the value type */\n    type = 'plain'\n    /** what are the available types? */\n    types = ['plain', 'html', 'markdown', 'object']\n\n    /** Mini jQuery-like shadow dom selector (see constructor) */\n    $\n    \n    /** Holds a count of how many instances of this component are on the page */\n    static _iCount = 0\n    /** @type {Array<string>} List of all of the html attribs (props) listened to */\n    static props = ['name', 'id', 'variable', 'undefined', 'report', 'type']\n    //#endregion --- Class Properties ---\n\n    constructor() {\n        super()\n        this.shadow = this.attachShadow({ mode: 'open', delegatesFocus: true })\n            // .append(template.content.cloneNode(true))\n\n        this.$ = this.shadowRoot.querySelector.bind(this.shadowRoot)\n\n        // Apply external styles to the shadow dom\n        this.css = document.createElement(\"link\")\n        this.css.setAttribute(\"type\", \"text/css\")\n        this.css.setAttribute(\"rel\", \"stylesheet\")\n        this.css.setAttribute(\"href\", \"../uibuilder/uib-brand.min.css\")\n\n        this.dispatchEvent(new Event(`uib-var:construction`, { bubbles: true, composed: true }))\n    }\n\n    // Makes HTML attribute change watched\n    static get observedAttributes() {\n        return UibVar.props\n    }\n\n    /** NOTE: On initial startup, this is called for each watched attrib set in HTML - BEFORE connectedCallback is called  */\n    attributeChangedCallback(attrib, oldVal, newVal) {\n        if ( oldVal === newVal ) return\n\n        switch (attrib) {\n            case 'variable': {\n                if (newVal === '') throw new Error('[uib-var] Attribute \"variable\" MUST be set to a UIBUILDER managed variable name')\n                this.variable = newVal\n                this.doWatch()\n                break\n            }\n            case 'undefined': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.undefined = true\n                else this.undefined = false\n                break\n            }\n            case 'report': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.report = true\n                else this.report = false\n                break\n            }\n            case 'type': {\n                if (newVal === '' || !this.types.includes(newVal.toLowerCase())) this.type = 'plain'\n                else this.type = newVal\n                break\n            }\n\n            default: {\n                this[attrib] = newVal\n                break\n            }\n        }\n    } // --- end of attributeChangedCallback --- //\n\n    // Runs when an instance is added to the DOM\n    connectedCallback() {\n        // Make sure instance has an ID. Create an id from name or calculation if needed\n        if (!this.id) {\n            if (!this.name) this.name = this.getAttribute('name')\n            if (this.name) this.id = this.name.toLowerCase().replace(/\\s/g, '_')\n            else this.id = `uib-var-${++UibVar._iCount}`\n        }\n    }  // ---- end of connectedCallback ---- //\n\n    // Runs when an instance is removed from the DOM\n    // disconnectedCallback() {} // ---- end of disconnectedCallback ---- //\n\n    /** Process changes to the required uibuilder variable */\n    doWatch() {\n        if (!this.variable) throw new Error('No variable name provided')\n        // if (!window['uibuilder']) throw new Error('UIBUILDER client library not loaded - this component must be loaded AFTER the UIBUILDER library')\n\n        this.value = window['uibuilder'].get(this.variable)\n        this.varDom()\n\n        // Watch for changes in the variable\n        window['uibuilder'].onChange(this.variable, (val) => {\n            this.value = val\n            this.varDom()\n            if (this.report === true) window['uibuilder'].send({topic: this.variable, payload: this.value || undefined})\n        })\n    }\n\n    /** Convert this.value to DOM output */\n    varDom() {\n        // If user doesn't want to show undefined vars, allow the component slot to show instead\n        if (this.value === undefined && this.undefined !== true) { \n            this.shadow.innerHTML = '<slot></slot>'\n            return\n        }\n        \n        let val = this.value\n\n        // console.log('\uD83E\uDDEA varDOM: ', val, typeof val, this.type)\n\n        switch (this.type) {\n            case 'markdown': {\n                this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(window['uibuilder'].convertMarkdown(val))\n                break\n            }\n        \n            case 'object': {\n                // console.log(window['uibuilder'].syntaxHighlight(val))\n                this.shadow.innerHTML = `<pre class=\"syntax-highlight\">${window['uibuilder'].syntaxHighlight(val)}</pre>`\n                break\n            }\n        \n            case 'plain':\n            case 'html':\n            default: {\n                const t = typeof val\n                if (Array.isArray(val) || t === '[object Object]' || t === 'object') {\n                    try {\n                        this.shadow.innerHTML = JSON.stringify(val)\n                    } catch (e) {\n                        this.shadow.innerHTML = val\n                    }\n                } else {\n                    this.shadow.innerHTML = val\n                }\n                break\n            }\n        }\n\n        this.shadow.appendChild(this.css)\n        // this.$('span').innerHTML = window['uibuilder'].sanitiseHTML(val)\n        // this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(val)\n    }\n}\n\n// Add the class as a new Custom Element to the window object \n// customElements.define('uib-var', UibVar)\n", "const PACKET_TYPES = Object.create(null); // no Map = no polyfill\nPACKET_TYPES[\"open\"] = \"0\";\nPACKET_TYPES[\"close\"] = \"1\";\nPACKET_TYPES[\"ping\"] = \"2\";\nPACKET_TYPES[\"pong\"] = \"3\";\nPACKET_TYPES[\"message\"] = \"4\";\nPACKET_TYPES[\"upgrade\"] = \"5\";\nPACKET_TYPES[\"noop\"] = \"6\";\nconst PACKET_TYPES_REVERSE = Object.create(null);\nObject.keys(PACKET_TYPES).forEach(key => {\n    PACKET_TYPES_REVERSE[PACKET_TYPES[key]] = key;\n});\nconst ERROR_PACKET = { type: \"error\", data: \"parser error\" };\nexport { PACKET_TYPES, PACKET_TYPES_REVERSE, ERROR_PACKET };\n", "import { PACKET_TYPES } from \"./commons.js\";\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        Object.prototype.toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\n// ArrayBuffer.isView method is not defined in IE10\nconst isView = obj => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj && obj.buffer instanceof ArrayBuffer;\n};\nconst encodePacket = ({ type, data }, supportsBinary, callback) => {\n    if (withNativeBlob && data instanceof Blob) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(data, callback);\n        }\n    }\n    else if (withNativeArrayBuffer &&\n        (data instanceof ArrayBuffer || isView(data))) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(new Blob([data]), callback);\n        }\n    }\n    // plain string\n    return callback(PACKET_TYPES[type] + (data || \"\"));\n};\nconst encodeBlobAsBase64 = (data, callback) => {\n    const fileReader = new FileReader();\n    fileReader.onload = function () {\n        const content = fileReader.result.split(\",\")[1];\n        callback(\"b\" + (content || \"\"));\n    };\n    return fileReader.readAsDataURL(data);\n};\nfunction toArray(data) {\n    if (data instanceof Uint8Array) {\n        return data;\n    }\n    else if (data instanceof ArrayBuffer) {\n        return new Uint8Array(data);\n    }\n    else {\n        return new Uint8Array(data.buffer, data.byteOffset, data.byteLength);\n    }\n}\nlet TEXT_ENCODER;\nexport function encodePacketToBinary(packet, callback) {\n    if (withNativeBlob && packet.data instanceof Blob) {\n        return packet.data\n            .arrayBuffer()\n            .then(toArray)\n            .then(callback);\n    }\n    else if (withNativeArrayBuffer &&\n        (packet.data instanceof ArrayBuffer || isView(packet.data))) {\n        return callback(toArray(packet.data));\n    }\n    encodePacket(packet, false, encoded => {\n        if (!TEXT_ENCODER) {\n            TEXT_ENCODER = new TextEncoder();\n        }\n        callback(TEXT_ENCODER.encode(encoded));\n    });\n}\nexport { encodePacket };\n", "// imported from https://github.com/socketio/base64-arraybuffer\nconst chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';\n// Use a lookup table to find the index.\nconst lookup = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);\nfor (let i = 0; i < chars.length; i++) {\n    lookup[chars.charCodeAt(i)] = i;\n}\nexport const encode = (arraybuffer) => {\n    let bytes = new Uint8Array(arraybuffer), i, len = bytes.length, base64 = '';\n    for (i = 0; i < len; i += 3) {\n        base64 += chars[bytes[i] >> 2];\n        base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];\n        base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];\n        base64 += chars[bytes[i + 2] & 63];\n    }\n    if (len % 3 === 2) {\n        base64 = base64.substring(0, base64.length - 1) + '=';\n    }\n    else if (len % 3 === 1) {\n        base64 = base64.substring(0, base64.length - 2) + '==';\n    }\n    return base64;\n};\nexport const decode = (base64) => {\n    let bufferLength = base64.length * 0.75, len = base64.length, i, p = 0, encoded1, encoded2, encoded3, encoded4;\n    if (base64[base64.length - 1] === '=') {\n        bufferLength--;\n        if (base64[base64.length - 2] === '=') {\n            bufferLength--;\n        }\n    }\n    const arraybuffer = new ArrayBuffer(bufferLength), bytes = new Uint8Array(arraybuffer);\n    for (i = 0; i < len; i += 4) {\n        encoded1 = lookup[base64.charCodeAt(i)];\n        encoded2 = lookup[base64.charCodeAt(i + 1)];\n        encoded3 = lookup[base64.charCodeAt(i + 2)];\n        encoded4 = lookup[base64.charCodeAt(i + 3)];\n        bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n        bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n        bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n    }\n    return arraybuffer;\n};\n", "import { ERROR_PACKET, PACKET_TYPES_REVERSE } from \"./commons.js\";\nimport { decode } from \"./contrib/base64-arraybuffer.js\";\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nexport const decodePacket = (encodedPacket, binaryType) => {\n    if (typeof encodedPacket !== \"string\") {\n        return {\n            type: \"message\",\n            data: mapBinary(encodedPacket, binaryType)\n        };\n    }\n    const type = encodedPacket.charAt(0);\n    if (type === \"b\") {\n        return {\n            type: \"message\",\n            data: decodeBase64Packet(encodedPacket.substring(1), binaryType)\n        };\n    }\n    const packetType = PACKET_TYPES_REVERSE[type];\n    if (!packetType) {\n        return ERROR_PACKET;\n    }\n    return encodedPacket.length > 1\n        ? {\n            type: PACKET_TYPES_REVERSE[type],\n            data: encodedPacket.substring(1)\n        }\n        : {\n            type: PACKET_TYPES_REVERSE[type]\n        };\n};\nconst decodeBase64Packet = (data, binaryType) => {\n    if (withNativeArrayBuffer) {\n        const decoded = decode(data);\n        return mapBinary(decoded, binaryType);\n    }\n    else {\n        return { base64: true, data }; // fallback for old browsers\n    }\n};\nconst mapBinary = (data, binaryType) => {\n    switch (binaryType) {\n        case \"blob\":\n            if (data instanceof Blob) {\n                // from WebSocket + binaryType \"blob\"\n                return data;\n            }\n            else {\n                // from HTTP long-polling or WebTransport\n                return new Blob([data]);\n            }\n        case \"arraybuffer\":\n        default:\n            if (data instanceof ArrayBuffer) {\n                // from HTTP long-polling (base64) or WebSocket + binaryType \"arraybuffer\"\n                return data;\n            }\n            else {\n                // from WebTransport (Uint8Array)\n                return data.buffer;\n            }\n    }\n};\n", "import { encodePacket, encodePacketToBinary } from \"./encodePacket.js\";\nimport { decodePacket } from \"./decodePacket.js\";\nimport { ERROR_PACKET } from \"./commons.js\";\nconst SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text\nconst encodePayload = (packets, callback) => {\n    // some packets may be added to the array while encoding, so the initial length must be saved\n    const length = packets.length;\n    const encodedPackets = new Array(length);\n    let count = 0;\n    packets.forEach((packet, i) => {\n        // force base64 encoding for binary packets\n        encodePacket(packet, false, encodedPacket => {\n            encodedPackets[i] = encodedPacket;\n            if (++count === length) {\n                callback(encodedPackets.join(SEPARATOR));\n            }\n        });\n    });\n};\nconst decodePayload = (encodedPayload, binaryType) => {\n    const encodedPackets = encodedPayload.split(SEPARATOR);\n    const packets = [];\n    for (let i = 0; i < encodedPackets.length; i++) {\n        const decodedPacket = decodePacket(encodedPackets[i], binaryType);\n        packets.push(decodedPacket);\n        if (decodedPacket.type === \"error\") {\n            break;\n        }\n    }\n    return packets;\n};\nexport function createPacketEncoderStream() {\n    return new TransformStream({\n        transform(packet, controller) {\n            encodePacketToBinary(packet, encodedPacket => {\n                const payloadLength = encodedPacket.length;\n                let header;\n                // inspired by the WebSocket format: https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API/Writing_WebSocket_servers#decoding_payload_length\n                if (payloadLength < 126) {\n                    header = new Uint8Array(1);\n                    new DataView(header.buffer).setUint8(0, payloadLength);\n                }\n                else if (payloadLength < 65536) {\n                    header = new Uint8Array(3);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 126);\n                    view.setUint16(1, payloadLength);\n                }\n                else {\n                    header = new Uint8Array(9);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 127);\n                    view.setBigUint64(1, BigInt(payloadLength));\n                }\n                // first bit indicates whether the payload is plain text (0) or binary (1)\n                if (packet.data && typeof packet.data !== \"string\") {\n                    header[0] |= 0x80;\n                }\n                controller.enqueue(header);\n                controller.enqueue(encodedPacket);\n            });\n        }\n    });\n}\nlet TEXT_DECODER;\nfunction totalLength(chunks) {\n    return chunks.reduce((acc, chunk) => acc + chunk.length, 0);\n}\nfunction concatChunks(chunks, size) {\n    if (chunks[0].length === size) {\n        return chunks.shift();\n    }\n    const buffer = new Uint8Array(size);\n    let j = 0;\n    for (let i = 0; i < size; i++) {\n        buffer[i] = chunks[0][j++];\n        if (j === chunks[0].length) {\n            chunks.shift();\n            j = 0;\n        }\n    }\n    if (chunks.length && j < chunks[0].length) {\n        chunks[0] = chunks[0].slice(j);\n    }\n    return buffer;\n}\nexport function createPacketDecoderStream(maxPayload, binaryType) {\n    if (!TEXT_DECODER) {\n        TEXT_DECODER = new TextDecoder();\n    }\n    const chunks = [];\n    let state = 0 /* READ_HEADER */;\n    let expectedLength = -1;\n    let isBinary = false;\n    return new TransformStream({\n        transform(chunk, controller) {\n            chunks.push(chunk);\n            while (true) {\n                if (state === 0 /* READ_HEADER */) {\n                    if (totalLength(chunks) < 1) {\n                        break;\n                    }\n                    const header = concatChunks(chunks, 1);\n                    isBinary = (header[0] & 0x80) === 0x80;\n                    expectedLength = header[0] & 0x7f;\n                    if (expectedLength < 126) {\n                        state = 3 /* READ_PAYLOAD */;\n                    }\n                    else if (expectedLength === 126) {\n                        state = 1 /* READ_EXTENDED_LENGTH_16 */;\n                    }\n                    else {\n                        state = 2 /* READ_EXTENDED_LENGTH_64 */;\n                    }\n                }\n                else if (state === 1 /* READ_EXTENDED_LENGTH_16 */) {\n                    if (totalLength(chunks) < 2) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 2);\n                    expectedLength = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length).getUint16(0);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else if (state === 2 /* READ_EXTENDED_LENGTH_64 */) {\n                    if (totalLength(chunks) < 8) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 8);\n                    const view = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length);\n                    const n = view.getUint32(0);\n                    if (n > Math.pow(2, 53 - 32) - 1) {\n                        // the maximum safe integer in JavaScript is 2^53 - 1\n                        controller.enqueue(ERROR_PACKET);\n                        break;\n                    }\n                    expectedLength = n * Math.pow(2, 32) + view.getUint32(4);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else {\n                    if (totalLength(chunks) < expectedLength) {\n                        break;\n                    }\n                    const data = concatChunks(chunks, expectedLength);\n                    controller.enqueue(decodePacket(isBinary ? data : TEXT_DECODER.decode(data), binaryType));\n                    state = 0 /* READ_HEADER */;\n                }\n                if (expectedLength === 0 || expectedLength > maxPayload) {\n                    controller.enqueue(ERROR_PACKET);\n                    break;\n                }\n            }\n        }\n    });\n}\nexport const protocol = 4;\nexport { encodePacket, encodePayload, decodePacket, decodePayload };\n", "/**\n * Initialize a new `Emitter`.\n *\n * @api public\n */\n\nexport function Emitter(obj) {\n  if (obj) return mixin(obj);\n}\n\n/**\n * Mixin the emitter properties.\n *\n * @param {Object} obj\n * @return {Object}\n * @api private\n */\n\nfunction mixin(obj) {\n  for (var key in Emitter.prototype) {\n    obj[key] = Emitter.prototype[key];\n  }\n  return obj;\n}\n\n/**\n * Listen on the given `event` with `fn`.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.on =\nEmitter.prototype.addEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])\n    .push(fn);\n  return this;\n};\n\n/**\n * Adds an `event` listener that will be invoked a single\n * time then automatically removed.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.once = function(event, fn){\n  function on() {\n    this.off(event, on);\n    fn.apply(this, arguments);\n  }\n\n  on.fn = fn;\n  this.on(event, on);\n  return this;\n};\n\n/**\n * Remove the given callback for `event` or all\n * registered callbacks.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.off =\nEmitter.prototype.removeListener =\nEmitter.prototype.removeAllListeners =\nEmitter.prototype.removeEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n\n  // all\n  if (0 == arguments.length) {\n    this._callbacks = {};\n    return this;\n  }\n\n  // specific event\n  var callbacks = this._callbacks['$' + event];\n  if (!callbacks) return this;\n\n  // remove all handlers\n  if (1 == arguments.length) {\n    delete this._callbacks['$' + event];\n    return this;\n  }\n\n  // remove specific handler\n  var cb;\n  for (var i = 0; i < callbacks.length; i++) {\n    cb = callbacks[i];\n    if (cb === fn || cb.fn === fn) {\n      callbacks.splice(i, 1);\n      break;\n    }\n  }\n\n  // Remove event specific arrays for event types that no\n  // one is subscribed for to avoid memory leak.\n  if (callbacks.length === 0) {\n    delete this._callbacks['$' + event];\n  }\n\n  return this;\n};\n\n/**\n * Emit `event` with the given args.\n *\n * @param {String} event\n * @param {Mixed} ...\n * @return {Emitter}\n */\n\nEmitter.prototype.emit = function(event){\n  this._callbacks = this._callbacks || {};\n\n  var args = new Array(arguments.length - 1)\n    , callbacks = this._callbacks['$' + event];\n\n  for (var i = 1; i < arguments.length; i++) {\n    args[i - 1] = arguments[i];\n  }\n\n  if (callbacks) {\n    callbacks = callbacks.slice(0);\n    for (var i = 0, len = callbacks.length; i < len; ++i) {\n      callbacks[i].apply(this, args);\n    }\n  }\n\n  return this;\n};\n\n// alias used for reserved events (protected method)\nEmitter.prototype.emitReserved = Emitter.prototype.emit;\n\n/**\n * Return array of callbacks for `event`.\n *\n * @param {String} event\n * @return {Array}\n * @api public\n */\n\nEmitter.prototype.listeners = function(event){\n  this._callbacks = this._callbacks || {};\n  return this._callbacks['$' + event] || [];\n};\n\n/**\n * Check if this emitter has `event` handlers.\n *\n * @param {String} event\n * @return {Boolean}\n * @api public\n */\n\nEmitter.prototype.hasListeners = function(event){\n  return !! this.listeners(event).length;\n};\n", "export const globalThisShim = (() => {\n    if (typeof self !== \"undefined\") {\n        return self;\n    }\n    else if (typeof window !== \"undefined\") {\n        return window;\n    }\n    else {\n        return Function(\"return this\")();\n    }\n})();\n", "import { globalThisShim as globalThis } from \"./globalThis.js\";\nexport function pick(obj, ...attr) {\n    return attr.reduce((acc, k) => {\n        if (obj.hasOwnProperty(k)) {\n            acc[k] = obj[k];\n        }\n        return acc;\n    }, {});\n}\n// Keep a reference to the real timeout functions so they can be used when overridden\nconst NATIVE_SET_TIMEOUT = globalThis.setTimeout;\nconst NATIVE_CLEAR_TIMEOUT = globalThis.clearTimeout;\nexport function installTimerFunctions(obj, opts) {\n    if (opts.useNativeTimers) {\n        obj.setTimeoutFn = NATIVE_SET_TIMEOUT.bind(globalThis);\n        obj.clearTimeoutFn = NATIVE_CLEAR_TIMEOUT.bind(globalThis);\n    }\n    else {\n        obj.setTimeoutFn = globalThis.setTimeout.bind(globalThis);\n        obj.clearTimeoutFn = globalThis.clearTimeout.bind(globalThis);\n    }\n}\n// base64 encoded buffers are about 33% bigger (https://en.wikipedia.org/wiki/Base64)\nconst BASE64_OVERHEAD = 1.33;\n// we could also have used `new Blob([obj]).size`, but it isn't supported in IE9\nexport function byteLength(obj) {\n    if (typeof obj === \"string\") {\n        return utf8Length(obj);\n    }\n    // arraybuffer or blob\n    return Math.ceil((obj.byteLength || obj.size) * BASE64_OVERHEAD);\n}\nfunction utf8Length(str) {\n    let c = 0, length = 0;\n    for (let i = 0, l = str.length; i < l; i++) {\n        c = str.charCodeAt(i);\n        if (c < 0x80) {\n            length += 1;\n        }\n        else if (c < 0x800) {\n            length += 2;\n        }\n        else if (c < 0xd800 || c >= 0xe000) {\n            length += 3;\n        }\n        else {\n            i++;\n            length += 4;\n        }\n    }\n    return length;\n}\n", "// imported from https://github.com/galkn/querystring\n/**\n * Compiles a querystring\n * Returns string representation of the object\n *\n * @param {Object}\n * @api private\n */\nexport function encode(obj) {\n    let str = '';\n    for (let i in obj) {\n        if (obj.hasOwnProperty(i)) {\n            if (str.length)\n                str += '&';\n            str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);\n        }\n    }\n    return str;\n}\n/**\n * Parses a simple querystring into an object\n *\n * @param {String} qs\n * @api private\n */\nexport function decode(qs) {\n    let qry = {};\n    let pairs = qs.split('&');\n    for (let i = 0, l = pairs.length; i < l; i++) {\n        let pair = pairs[i].split('=');\n        qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);\n    }\n    return qry;\n}\n", "import { decodePacket } from \"engine.io-parser\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions } from \"./util.js\";\nimport { encode } from \"./contrib/parseqs.js\";\nexport class TransportError extends Error {\n    constructor(reason, description, context) {\n        super(reason);\n        this.description = description;\n        this.context = context;\n        this.type = \"TransportError\";\n    }\n}\nexport class Transport extends Emitter {\n    /**\n     * Transport abstract constructor.\n     *\n     * @param {Object} opts - options\n     * @protected\n     */\n    constructor(opts) {\n        super();\n        this.writable = false;\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.query = opts.query;\n        this.socket = opts.socket;\n    }\n    /**\n     * Emits an error.\n     *\n     * @param {String} reason\n     * @param description\n     * @param context - the error context\n     * @return {Transport} for chaining\n     * @protected\n     */\n    onError(reason, description, context) {\n        super.emitReserved(\"error\", new TransportError(reason, description, context));\n        return this;\n    }\n    /**\n     * Opens the transport.\n     */\n    open() {\n        this.readyState = \"opening\";\n        this.doOpen();\n        return this;\n    }\n    /**\n     * Closes the transport.\n     */\n    close() {\n        if (this.readyState === \"opening\" || this.readyState === \"open\") {\n            this.doClose();\n            this.onClose();\n        }\n        return this;\n    }\n    /**\n     * Sends multiple packets.\n     *\n     * @param {Array} packets\n     */\n    send(packets) {\n        if (this.readyState === \"open\") {\n            this.write(packets);\n        }\n        else {\n            // this might happen if the transport was silently closed in the beforeunload event handler\n        }\n    }\n    /**\n     * Called upon open\n     *\n     * @protected\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        this.writable = true;\n        super.emitReserved(\"open\");\n    }\n    /**\n     * Called with data.\n     *\n     * @param {String} data\n     * @protected\n     */\n    onData(data) {\n        const packet = decodePacket(data, this.socket.binaryType);\n        this.onPacket(packet);\n    }\n    /**\n     * Called with a decoded packet.\n     *\n     * @protected\n     */\n    onPacket(packet) {\n        super.emitReserved(\"packet\", packet);\n    }\n    /**\n     * Called upon close.\n     *\n     * @protected\n     */\n    onClose(details) {\n        this.readyState = \"closed\";\n        super.emitReserved(\"close\", details);\n    }\n    /**\n     * Pauses the transport, in order not to lose packets during an upgrade.\n     *\n     * @param onPause\n     */\n    pause(onPause) { }\n    createUri(schema, query = {}) {\n        return (schema +\n            \"://\" +\n            this._hostname() +\n            this._port() +\n            this.opts.path +\n            this._query(query));\n    }\n    _hostname() {\n        const hostname = this.opts.hostname;\n        return hostname.indexOf(\":\") === -1 ? hostname : \"[\" + hostname + \"]\";\n    }\n    _port() {\n        if (this.opts.port &&\n            ((this.opts.secure && Number(this.opts.port !== 443)) ||\n                (!this.opts.secure && Number(this.opts.port) !== 80))) {\n            return \":\" + this.opts.port;\n        }\n        else {\n            return \"\";\n        }\n    }\n    _query(query) {\n        const encodedQuery = encode(query);\n        return encodedQuery.length ? \"?\" + encodedQuery : \"\";\n    }\n}\n", "// imported from https://github.com/unshiftio/yeast\n'use strict';\nconst alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split(''), length = 64, map = {};\nlet seed = 0, i = 0, prev;\n/**\n * Return a string representing the specified number.\n *\n * @param {Number} num The number to convert.\n * @returns {String} The string representation of the number.\n * @api public\n */\nexport function encode(num) {\n    let encoded = '';\n    do {\n        encoded = alphabet[num % length] + encoded;\n        num = Math.floor(num / length);\n    } while (num > 0);\n    return encoded;\n}\n/**\n * Return the integer value specified by the given string.\n *\n * @param {String} str The string to convert.\n * @returns {Number} The integer value represented by the string.\n * @api public\n */\nexport function decode(str) {\n    let decoded = 0;\n    for (i = 0; i < str.length; i++) {\n        decoded = decoded * length + map[str.charAt(i)];\n    }\n    return decoded;\n}\n/**\n * Yeast: A tiny growing id generator.\n *\n * @returns {String} A unique id.\n * @api public\n */\nexport function yeast() {\n    const now = encode(+new Date());\n    if (now !== prev)\n        return seed = 0, prev = now;\n    return now + '.' + encode(seed++);\n}\n//\n// Map each character to its index.\n//\nfor (; i < length; i++)\n    map[alphabet[i]] = i;\n", "// imported from https://github.com/component/has-cors\nlet value = false;\ntry {\n    value = typeof XMLHttpRequest !== 'undefined' &&\n        'withCredentials' in new XMLHttpRequest();\n}\ncatch (err) {\n    // if XMLHttp support is disabled in IE then it will throw\n    // when trying to create\n}\nexport const hasCORS = value;\n", "// browser shim for xmlhttprequest module\nimport { hasCORS } from \"../contrib/has-cors.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nexport function XHR(opts) {\n    const xdomain = opts.xdomain;\n    // XMLHttpRequest can be disabled on IE\n    try {\n        if (\"undefined\" !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {\n            return new XMLHttpRequest();\n        }\n    }\n    catch (e) { }\n    if (!xdomain) {\n        try {\n            return new globalThis[[\"Active\"].concat(\"Object\").join(\"X\")](\"Microsoft.XMLHTTP\");\n        }\n        catch (e) { }\n    }\n}\nexport function createCookieJar() { }\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { encodePayload, decodePayload } from \"engine.io-parser\";\nimport { createCookieJar, XHR as XMLHttpRequest, } from \"./xmlhttprequest.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions, pick } from \"../util.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nfunction empty() { }\nconst hasXHR2 = (function () {\n    const xhr = new XMLHttpRequest({\n        xdomain: false,\n    });\n    return null != xhr.responseType;\n})();\nexport class Polling extends Transport {\n    /**\n     * XHR Polling constructor.\n     *\n     * @param {Object} opts\n     * @package\n     */\n    constructor(opts) {\n        super(opts);\n        this.polling = false;\n        if (typeof location !== \"undefined\") {\n            const isSSL = \"https:\" === location.protocol;\n            let port = location.port;\n            // some user agents have empty `location.port`\n            if (!port) {\n                port = isSSL ? \"443\" : \"80\";\n            }\n            this.xd =\n                (typeof location !== \"undefined\" &&\n                    opts.hostname !== location.hostname) ||\n                    port !== opts.port;\n        }\n        /**\n         * XHR supports binary\n         */\n        const forceBase64 = opts && opts.forceBase64;\n        this.supportsBinary = hasXHR2 && !forceBase64;\n        if (this.opts.withCredentials) {\n            this.cookieJar = createCookieJar();\n        }\n    }\n    get name() {\n        return \"polling\";\n    }\n    /**\n     * Opens the socket (triggers polling). We write a PING message to determine\n     * when the transport is open.\n     *\n     * @protected\n     */\n    doOpen() {\n        this.poll();\n    }\n    /**\n     * Pauses polling.\n     *\n     * @param {Function} onPause - callback upon buffers are flushed and transport is paused\n     * @package\n     */\n    pause(onPause) {\n        this.readyState = \"pausing\";\n        const pause = () => {\n            this.readyState = \"paused\";\n            onPause();\n        };\n        if (this.polling || !this.writable) {\n            let total = 0;\n            if (this.polling) {\n                total++;\n                this.once(\"pollComplete\", function () {\n                    --total || pause();\n                });\n            }\n            if (!this.writable) {\n                total++;\n                this.once(\"drain\", function () {\n                    --total || pause();\n                });\n            }\n        }\n        else {\n            pause();\n        }\n    }\n    /**\n     * Starts polling cycle.\n     *\n     * @private\n     */\n    poll() {\n        this.polling = true;\n        this.doPoll();\n        this.emitReserved(\"poll\");\n    }\n    /**\n     * Overloads onData to detect payloads.\n     *\n     * @protected\n     */\n    onData(data) {\n        const callback = (packet) => {\n            // if its the first message we consider the transport open\n            if (\"opening\" === this.readyState && packet.type === \"open\") {\n                this.onOpen();\n            }\n            // if its a close packet, we close the ongoing requests\n            if (\"close\" === packet.type) {\n                this.onClose({ description: \"transport closed by the server\" });\n                return false;\n            }\n            // otherwise bypass onData and handle the message\n            this.onPacket(packet);\n        };\n        // decode payload\n        decodePayload(data, this.socket.binaryType).forEach(callback);\n        // if an event did not trigger closing\n        if (\"closed\" !== this.readyState) {\n            // if we got data we're not polling\n            this.polling = false;\n            this.emitReserved(\"pollComplete\");\n            if (\"open\" === this.readyState) {\n                this.poll();\n            }\n            else {\n            }\n        }\n    }\n    /**\n     * For polling, send a close packet.\n     *\n     * @protected\n     */\n    doClose() {\n        const close = () => {\n            this.write([{ type: \"close\" }]);\n        };\n        if (\"open\" === this.readyState) {\n            close();\n        }\n        else {\n            // in case we're trying to close while\n            // handshaking is in progress (GH-164)\n            this.once(\"open\", close);\n        }\n    }\n    /**\n     * Writes a packets payload.\n     *\n     * @param {Array} packets - data packets\n     * @protected\n     */\n    write(packets) {\n        this.writable = false;\n        encodePayload(packets, (data) => {\n            this.doWrite(data, () => {\n                this.writable = true;\n                this.emitReserved(\"drain\");\n            });\n        });\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"https\" : \"http\";\n        const query = this.query || {};\n        // cache busting is forced\n        if (false !== this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        if (!this.supportsBinary && !query.sid) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Creates a request.\n     *\n     * @param {String} method\n     * @private\n     */\n    request(opts = {}) {\n        Object.assign(opts, { xd: this.xd, cookieJar: this.cookieJar }, this.opts);\n        return new Request(this.uri(), opts);\n    }\n    /**\n     * Sends data.\n     *\n     * @param {String} data to send.\n     * @param {Function} called upon flush.\n     * @private\n     */\n    doWrite(data, fn) {\n        const req = this.request({\n            method: \"POST\",\n            data: data,\n        });\n        req.on(\"success\", fn);\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr post error\", xhrStatus, context);\n        });\n    }\n    /**\n     * Starts a poll cycle.\n     *\n     * @private\n     */\n    doPoll() {\n        const req = this.request();\n        req.on(\"data\", this.onData.bind(this));\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr poll error\", xhrStatus, context);\n        });\n        this.pollXhr = req;\n    }\n}\nexport class Request extends Emitter {\n    /**\n     * Request constructor\n     *\n     * @param {Object} options\n     * @package\n     */\n    constructor(uri, opts) {\n        super();\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.method = opts.method || \"GET\";\n        this.uri = uri;\n        this.data = undefined !== opts.data ? opts.data : null;\n        this.create();\n    }\n    /**\n     * Creates the XHR object and sends the request.\n     *\n     * @private\n     */\n    create() {\n        var _a;\n        const opts = pick(this.opts, \"agent\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"autoUnref\");\n        opts.xdomain = !!this.opts.xd;\n        const xhr = (this.xhr = new XMLHttpRequest(opts));\n        try {\n            xhr.open(this.method, this.uri, true);\n            try {\n                if (this.opts.extraHeaders) {\n                    xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);\n                    for (let i in this.opts.extraHeaders) {\n                        if (this.opts.extraHeaders.hasOwnProperty(i)) {\n                            xhr.setRequestHeader(i, this.opts.extraHeaders[i]);\n                        }\n                    }\n                }\n            }\n            catch (e) { }\n            if (\"POST\" === this.method) {\n                try {\n                    xhr.setRequestHeader(\"Content-type\", \"text/plain;charset=UTF-8\");\n                }\n                catch (e) { }\n            }\n            try {\n                xhr.setRequestHeader(\"Accept\", \"*/*\");\n            }\n            catch (e) { }\n            (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.addCookies(xhr);\n            // ie6 check\n            if (\"withCredentials\" in xhr) {\n                xhr.withCredentials = this.opts.withCredentials;\n            }\n            if (this.opts.requestTimeout) {\n                xhr.timeout = this.opts.requestTimeout;\n            }\n            xhr.onreadystatechange = () => {\n                var _a;\n                if (xhr.readyState === 3) {\n                    (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.parseCookies(xhr);\n                }\n                if (4 !== xhr.readyState)\n                    return;\n                if (200 === xhr.status || 1223 === xhr.status) {\n                    this.onLoad();\n                }\n                else {\n                    // make sure the `error` event handler that's user-set\n                    // does not throw in the same tick and gets caught here\n                    this.setTimeoutFn(() => {\n                        this.onError(typeof xhr.status === \"number\" ? xhr.status : 0);\n                    }, 0);\n                }\n            };\n            xhr.send(this.data);\n        }\n        catch (e) {\n            // Need to defer since .create() is called directly from the constructor\n            // and thus the 'error' event can only be only bound *after* this exception\n            // occurs.  Therefore, also, we cannot throw here at all.\n            this.setTimeoutFn(() => {\n                this.onError(e);\n            }, 0);\n            return;\n        }\n        if (typeof document !== \"undefined\") {\n            this.index = Request.requestsCount++;\n            Request.requests[this.index] = this;\n        }\n    }\n    /**\n     * Called upon error.\n     *\n     * @private\n     */\n    onError(err) {\n        this.emitReserved(\"error\", err, this.xhr);\n        this.cleanup(true);\n    }\n    /**\n     * Cleans up house.\n     *\n     * @private\n     */\n    cleanup(fromError) {\n        if (\"undefined\" === typeof this.xhr || null === this.xhr) {\n            return;\n        }\n        this.xhr.onreadystatechange = empty;\n        if (fromError) {\n            try {\n                this.xhr.abort();\n            }\n            catch (e) { }\n        }\n        if (typeof document !== \"undefined\") {\n            delete Request.requests[this.index];\n        }\n        this.xhr = null;\n    }\n    /**\n     * Called upon load.\n     *\n     * @private\n     */\n    onLoad() {\n        const data = this.xhr.responseText;\n        if (data !== null) {\n            this.emitReserved(\"data\", data);\n            this.emitReserved(\"success\");\n            this.cleanup();\n        }\n    }\n    /**\n     * Aborts the request.\n     *\n     * @package\n     */\n    abort() {\n        this.cleanup();\n    }\n}\nRequest.requestsCount = 0;\nRequest.requests = {};\n/**\n * Aborts pending requests when unloading the window. This is needed to prevent\n * memory leaks (e.g. when using IE) and to ensure that no spurious error is\n * emitted.\n */\nif (typeof document !== \"undefined\") {\n    // @ts-ignore\n    if (typeof attachEvent === \"function\") {\n        // @ts-ignore\n        attachEvent(\"onunload\", unloadHandler);\n    }\n    else if (typeof addEventListener === \"function\") {\n        const terminationEvent = \"onpagehide\" in globalThis ? \"pagehide\" : \"unload\";\n        addEventListener(terminationEvent, unloadHandler, false);\n    }\n}\nfunction unloadHandler() {\n    for (let i in Request.requests) {\n        if (Request.requests.hasOwnProperty(i)) {\n            Request.requests[i].abort();\n        }\n    }\n}\n", "import { globalThisShim as globalThis } from \"../globalThis.js\";\nexport const nextTick = (() => {\n    const isPromiseAvailable = typeof Promise === \"function\" && typeof Promise.resolve === \"function\";\n    if (isPromiseAvailable) {\n        return (cb) => Promise.resolve().then(cb);\n    }\n    else {\n        return (cb, setTimeoutFn) => setTimeoutFn(cb, 0);\n    }\n})();\nexport const WebSocket = globalThis.WebSocket || globalThis.MozWebSocket;\nexport const usingBrowserWebSocket = true;\nexport const defaultBinaryType = \"arraybuffer\";\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { pick } from \"../util.js\";\nimport { nextTick, usingBrowserWebSocket, WebSocket, } from \"./websocket-constructor.js\";\nimport { encodePacket } from \"engine.io-parser\";\n// detect ReactNative environment\nconst isReactNative = typeof navigator !== \"undefined\" &&\n    typeof navigator.product === \"string\" &&\n    navigator.product.toLowerCase() === \"reactnative\";\nexport class WS extends Transport {\n    /**\n     * WebSocket transport constructor.\n     *\n     * @param {Object} opts - connection options\n     * @protected\n     */\n    constructor(opts) {\n        super(opts);\n        this.supportsBinary = !opts.forceBase64;\n    }\n    get name() {\n        return \"websocket\";\n    }\n    doOpen() {\n        if (!this.check()) {\n            // let probe timeout\n            return;\n        }\n        const uri = this.uri();\n        const protocols = this.opts.protocols;\n        // React Native only supports the 'headers' option, and will print a warning if anything else is passed\n        const opts = isReactNative\n            ? {}\n            : pick(this.opts, \"agent\", \"perMessageDeflate\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"localAddress\", \"protocolVersion\", \"origin\", \"maxPayload\", \"family\", \"checkServerIdentity\");\n        if (this.opts.extraHeaders) {\n            opts.headers = this.opts.extraHeaders;\n        }\n        try {\n            this.ws =\n                usingBrowserWebSocket && !isReactNative\n                    ? protocols\n                        ? new WebSocket(uri, protocols)\n                        : new WebSocket(uri)\n                    : new WebSocket(uri, protocols, opts);\n        }\n        catch (err) {\n            return this.emitReserved(\"error\", err);\n        }\n        this.ws.binaryType = this.socket.binaryType;\n        this.addEventListeners();\n    }\n    /**\n     * Adds event listeners to the socket\n     *\n     * @private\n     */\n    addEventListeners() {\n        this.ws.onopen = () => {\n            if (this.opts.autoUnref) {\n                this.ws._socket.unref();\n            }\n            this.onOpen();\n        };\n        this.ws.onclose = (closeEvent) => this.onClose({\n            description: \"websocket connection closed\",\n            context: closeEvent,\n        });\n        this.ws.onmessage = (ev) => this.onData(ev.data);\n        this.ws.onerror = (e) => this.onError(\"websocket error\", e);\n    }\n    write(packets) {\n        this.writable = false;\n        // encodePacket efficient as it uses WS framing\n        // no need for encodePayload\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            encodePacket(packet, this.supportsBinary, (data) => {\n                // always create a new object (GH-437)\n                const opts = {};\n                if (!usingBrowserWebSocket) {\n                    if (packet.options) {\n                        opts.compress = packet.options.compress;\n                    }\n                    if (this.opts.perMessageDeflate) {\n                        const len = \n                        // @ts-ignore\n                        \"string\" === typeof data ? Buffer.byteLength(data) : data.length;\n                        if (len < this.opts.perMessageDeflate.threshold) {\n                            opts.compress = false;\n                        }\n                    }\n                }\n                // Sometimes the websocket has already been closed but the browser didn't\n                // have a chance of informing us about it yet, in that case send will\n                // throw an error\n                try {\n                    if (usingBrowserWebSocket) {\n                        // TypeError is thrown when passing the second argument on Safari\n                        this.ws.send(data);\n                    }\n                    else {\n                        this.ws.send(data, opts);\n                    }\n                }\n                catch (e) {\n                }\n                if (lastPacket) {\n                    // fake drain\n                    // defer to next tick to allow Socket to clear writeBuffer\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        if (typeof this.ws !== \"undefined\") {\n            this.ws.close();\n            this.ws = null;\n        }\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"wss\" : \"ws\";\n        const query = this.query || {};\n        // append timestamp to URI\n        if (this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        // communicate binary support capabilities\n        if (!this.supportsBinary) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Feature detection for WebSocket.\n     *\n     * @return {Boolean} whether this transport is available.\n     * @private\n     */\n    check() {\n        return !!WebSocket;\n    }\n}\n", "import { Transport } from \"../transport.js\";\nimport { nextTick } from \"./websocket-constructor.js\";\nimport { createPacketDecoderStream, createPacketEncoderStream, } from \"engine.io-parser\";\nexport class WT extends Transport {\n    get name() {\n        return \"webtransport\";\n    }\n    doOpen() {\n        // @ts-ignore\n        if (typeof WebTransport !== \"function\") {\n            return;\n        }\n        // @ts-ignore\n        this.transport = new WebTransport(this.createUri(\"https\"), this.opts.transportOptions[this.name]);\n        this.transport.closed\n            .then(() => {\n            this.onClose();\n        })\n            .catch((err) => {\n            this.onError(\"webtransport error\", err);\n        });\n        // note: we could have used async/await, but that would require some additional polyfills\n        this.transport.ready.then(() => {\n            this.transport.createBidirectionalStream().then((stream) => {\n                const decoderStream = createPacketDecoderStream(Number.MAX_SAFE_INTEGER, this.socket.binaryType);\n                const reader = stream.readable.pipeThrough(decoderStream).getReader();\n                const encoderStream = createPacketEncoderStream();\n                encoderStream.readable.pipeTo(stream.writable);\n                this.writer = encoderStream.writable.getWriter();\n                const read = () => {\n                    reader\n                        .read()\n                        .then(({ done, value }) => {\n                        if (done) {\n                            return;\n                        }\n                        this.onPacket(value);\n                        read();\n                    })\n                        .catch((err) => {\n                    });\n                };\n                read();\n                const packet = { type: \"open\" };\n                if (this.query.sid) {\n                    packet.data = `{\"sid\":\"${this.query.sid}\"}`;\n                }\n                this.writer.write(packet).then(() => this.onOpen());\n            });\n        });\n    }\n    write(packets) {\n        this.writable = false;\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            this.writer.write(packet).then(() => {\n                if (lastPacket) {\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        var _a;\n        (_a = this.transport) === null || _a === void 0 ? void 0 : _a.close();\n    }\n}\n", "import { Polling } from \"./polling.js\";\nimport { WS } from \"./websocket.js\";\nimport { WT } from \"./webtransport.js\";\nexport const transports = {\n    websocket: WS,\n    webtransport: WT,\n    polling: Polling,\n};\n", "// imported from https://github.com/galkn/parseuri\n/**\n * Parses a URI\n *\n * Note: we could also have used the built-in URL object, but it isn't supported on all platforms.\n *\n * See:\n * - https://developer.mozilla.org/en-US/docs/Web/API/URL\n * - https://caniuse.com/url\n * - https://www.rfc-editor.org/rfc/rfc3986#appendix-B\n *\n * History of the parse() method:\n * - first commit: https://github.com/socketio/socket.io-client/commit/4ee1d5d94b3906a9c052b459f1a818b15f38f91c\n * - export into its own module: https://github.com/socketio/engine.io-client/commit/de2c561e4564efeb78f1bdb1ba39ef81b2822cb3\n * - reimport: https://github.com/socketio/engine.io-client/commit/df32277c3f6d622eec5ed09f493cae3f3391d242\n *\n * @author Steven Levithan <stevenlevithan.com> (MIT license)\n * @api private\n */\nconst re = /^(?:(?![^:@\\/?#]+:[^:@\\/]*@)(http|https|ws|wss):\\/\\/)?((?:(([^:@\\/?#]*)(?::([^:@\\/?#]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\\/?#]*)(?::(\\d*))?)(((\\/(?:[^?#](?![^?#\\/]*\\.[^?#\\/.]+(?:[?#]|$)))*\\/?)?([^?#\\/]*))(?:\\?([^#]*))?(?:#(.*))?)/;\nconst parts = [\n    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'\n];\nexport function parse(str) {\n    if (str.length > 2000) {\n        throw \"URI too long\";\n    }\n    const src = str, b = str.indexOf('['), e = str.indexOf(']');\n    if (b != -1 && e != -1) {\n        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);\n    }\n    let m = re.exec(str || ''), uri = {}, i = 14;\n    while (i--) {\n        uri[parts[i]] = m[i] || '';\n    }\n    if (b != -1 && e != -1) {\n        uri.source = src;\n        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');\n        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');\n        uri.ipv6uri = true;\n    }\n    uri.pathNames = pathNames(uri, uri['path']);\n    uri.queryKey = queryKey(uri, uri['query']);\n    return uri;\n}\nfunction pathNames(obj, path) {\n    const regx = /\\/{2,9}/g, names = path.replace(regx, \"/\").split(\"/\");\n    if (path.slice(0, 1) == '/' || path.length === 0) {\n        names.splice(0, 1);\n    }\n    if (path.slice(-1) == '/') {\n        names.splice(names.length - 1, 1);\n    }\n    return names;\n}\nfunction queryKey(uri, query) {\n    const data = {};\n    query.replace(/(?:^|&)([^&=]*)=?([^&]*)/g, function ($0, $1, $2) {\n        if ($1) {\n            data[$1] = $2;\n        }\n    });\n    return data;\n}\n", "import { transports } from \"./transports/index.js\";\nimport { installTimerFunctions, byteLength } from \"./util.js\";\nimport { decode } from \"./contrib/parseqs.js\";\nimport { parse } from \"./contrib/parseuri.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { protocol } from \"engine.io-parser\";\nimport { defaultBinaryType } from \"./transports/websocket-constructor.js\";\nexport class Socket extends Emitter {\n    /**\n     * Socket constructor.\n     *\n     * @param {String|Object} uri - uri or options\n     * @param {Object} opts - options\n     */\n    constructor(uri, opts = {}) {\n        super();\n        this.binaryType = defaultBinaryType;\n        this.writeBuffer = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = null;\n        }\n        if (uri) {\n            uri = parse(uri);\n            opts.hostname = uri.host;\n            opts.secure = uri.protocol === \"https\" || uri.protocol === \"wss\";\n            opts.port = uri.port;\n            if (uri.query)\n                opts.query = uri.query;\n        }\n        else if (opts.host) {\n            opts.hostname = parse(opts.host).host;\n        }\n        installTimerFunctions(this, opts);\n        this.secure =\n            null != opts.secure\n                ? opts.secure\n                : typeof location !== \"undefined\" && \"https:\" === location.protocol;\n        if (opts.hostname && !opts.port) {\n            // if no port is specified manually, use the protocol default\n            opts.port = this.secure ? \"443\" : \"80\";\n        }\n        this.hostname =\n            opts.hostname ||\n                (typeof location !== \"undefined\" ? location.hostname : \"localhost\");\n        this.port =\n            opts.port ||\n                (typeof location !== \"undefined\" && location.port\n                    ? location.port\n                    : this.secure\n                        ? \"443\"\n                        : \"80\");\n        this.transports = opts.transports || [\n            \"polling\",\n            \"websocket\",\n            \"webtransport\",\n        ];\n        this.writeBuffer = [];\n        this.prevBufferLen = 0;\n        this.opts = Object.assign({\n            path: \"/engine.io\",\n            agent: false,\n            withCredentials: false,\n            upgrade: true,\n            timestampParam: \"t\",\n            rememberUpgrade: false,\n            addTrailingSlash: true,\n            rejectUnauthorized: true,\n            perMessageDeflate: {\n                threshold: 1024,\n            },\n            transportOptions: {},\n            closeOnBeforeunload: false,\n        }, opts);\n        this.opts.path =\n            this.opts.path.replace(/\\/$/, \"\") +\n                (this.opts.addTrailingSlash ? \"/\" : \"\");\n        if (typeof this.opts.query === \"string\") {\n            this.opts.query = decode(this.opts.query);\n        }\n        // set on handshake\n        this.id = null;\n        this.upgrades = null;\n        this.pingInterval = null;\n        this.pingTimeout = null;\n        // set on heartbeat\n        this.pingTimeoutTimer = null;\n        if (typeof addEventListener === \"function\") {\n            if (this.opts.closeOnBeforeunload) {\n                // Firefox closes the connection when the \"beforeunload\" event is emitted but not Chrome. This event listener\n                // ensures every browser behaves the same (no \"disconnect\" event at the Socket.IO level when the page is\n                // closed/reloaded)\n                this.beforeunloadEventListener = () => {\n                    if (this.transport) {\n                        // silently close the transport\n                        this.transport.removeAllListeners();\n                        this.transport.close();\n                    }\n                };\n                addEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n            }\n            if (this.hostname !== \"localhost\") {\n                this.offlineEventListener = () => {\n                    this.onClose(\"transport close\", {\n                        description: \"network connection lost\",\n                    });\n                };\n                addEventListener(\"offline\", this.offlineEventListener, false);\n            }\n        }\n        this.open();\n    }\n    /**\n     * Creates transport of the given type.\n     *\n     * @param {String} name - transport name\n     * @return {Transport}\n     * @private\n     */\n    createTransport(name) {\n        const query = Object.assign({}, this.opts.query);\n        // append engine.io protocol identifier\n        query.EIO = protocol;\n        // transport name\n        query.transport = name;\n        // session id if we already have one\n        if (this.id)\n            query.sid = this.id;\n        const opts = Object.assign({}, this.opts, {\n            query,\n            socket: this,\n            hostname: this.hostname,\n            secure: this.secure,\n            port: this.port,\n        }, this.opts.transportOptions[name]);\n        return new transports[name](opts);\n    }\n    /**\n     * Initializes transport to use and starts probe.\n     *\n     * @private\n     */\n    open() {\n        let transport;\n        if (this.opts.rememberUpgrade &&\n            Socket.priorWebsocketSuccess &&\n            this.transports.indexOf(\"websocket\") !== -1) {\n            transport = \"websocket\";\n        }\n        else if (0 === this.transports.length) {\n            // Emit error on next tick so it can be listened to\n            this.setTimeoutFn(() => {\n                this.emitReserved(\"error\", \"No transports available\");\n            }, 0);\n            return;\n        }\n        else {\n            transport = this.transports[0];\n        }\n        this.readyState = \"opening\";\n        // Retry with the next transport if the transport is disabled (jsonp: false)\n        try {\n            transport = this.createTransport(transport);\n        }\n        catch (e) {\n            this.transports.shift();\n            this.open();\n            return;\n        }\n        transport.open();\n        this.setTransport(transport);\n    }\n    /**\n     * Sets the current transport. Disables the existing one (if any).\n     *\n     * @private\n     */\n    setTransport(transport) {\n        if (this.transport) {\n            this.transport.removeAllListeners();\n        }\n        // set up transport\n        this.transport = transport;\n        // set up transport listeners\n        transport\n            .on(\"drain\", this.onDrain.bind(this))\n            .on(\"packet\", this.onPacket.bind(this))\n            .on(\"error\", this.onError.bind(this))\n            .on(\"close\", (reason) => this.onClose(\"transport close\", reason));\n    }\n    /**\n     * Probes a transport.\n     *\n     * @param {String} name - transport name\n     * @private\n     */\n    probe(name) {\n        let transport = this.createTransport(name);\n        let failed = false;\n        Socket.priorWebsocketSuccess = false;\n        const onTransportOpen = () => {\n            if (failed)\n                return;\n            transport.send([{ type: \"ping\", data: \"probe\" }]);\n            transport.once(\"packet\", (msg) => {\n                if (failed)\n                    return;\n                if (\"pong\" === msg.type && \"probe\" === msg.data) {\n                    this.upgrading = true;\n                    this.emitReserved(\"upgrading\", transport);\n                    if (!transport)\n                        return;\n                    Socket.priorWebsocketSuccess = \"websocket\" === transport.name;\n                    this.transport.pause(() => {\n                        if (failed)\n                            return;\n                        if (\"closed\" === this.readyState)\n                            return;\n                        cleanup();\n                        this.setTransport(transport);\n                        transport.send([{ type: \"upgrade\" }]);\n                        this.emitReserved(\"upgrade\", transport);\n                        transport = null;\n                        this.upgrading = false;\n                        this.flush();\n                    });\n                }\n                else {\n                    const err = new Error(\"probe error\");\n                    // @ts-ignore\n                    err.transport = transport.name;\n                    this.emitReserved(\"upgradeError\", err);\n                }\n            });\n        };\n        function freezeTransport() {\n            if (failed)\n                return;\n            // Any callback called by transport should be ignored since now\n            failed = true;\n            cleanup();\n            transport.close();\n            transport = null;\n        }\n        // Handle any error that happens while probing\n        const onerror = (err) => {\n            const error = new Error(\"probe error: \" + err);\n            // @ts-ignore\n            error.transport = transport.name;\n            freezeTransport();\n            this.emitReserved(\"upgradeError\", error);\n        };\n        function onTransportClose() {\n            onerror(\"transport closed\");\n        }\n        // When the socket is closed while we're probing\n        function onclose() {\n            onerror(\"socket closed\");\n        }\n        // When the socket is upgraded while we're probing\n        function onupgrade(to) {\n            if (transport && to.name !== transport.name) {\n                freezeTransport();\n            }\n        }\n        // Remove all listeners on the transport and on self\n        const cleanup = () => {\n            transport.removeListener(\"open\", onTransportOpen);\n            transport.removeListener(\"error\", onerror);\n            transport.removeListener(\"close\", onTransportClose);\n            this.off(\"close\", onclose);\n            this.off(\"upgrading\", onupgrade);\n        };\n        transport.once(\"open\", onTransportOpen);\n        transport.once(\"error\", onerror);\n        transport.once(\"close\", onTransportClose);\n        this.once(\"close\", onclose);\n        this.once(\"upgrading\", onupgrade);\n        if (this.upgrades.indexOf(\"webtransport\") !== -1 &&\n            name !== \"webtransport\") {\n            // favor WebTransport\n            this.setTimeoutFn(() => {\n                if (!failed) {\n                    transport.open();\n                }\n            }, 200);\n        }\n        else {\n            transport.open();\n        }\n    }\n    /**\n     * Called when connection is deemed open.\n     *\n     * @private\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        Socket.priorWebsocketSuccess = \"websocket\" === this.transport.name;\n        this.emitReserved(\"open\");\n        this.flush();\n        // we check for `readyState` in case an `open`\n        // listener already closed the socket\n        if (\"open\" === this.readyState && this.opts.upgrade) {\n            let i = 0;\n            const l = this.upgrades.length;\n            for (; i < l; i++) {\n                this.probe(this.upgrades[i]);\n            }\n        }\n    }\n    /**\n     * Handles a packet.\n     *\n     * @private\n     */\n    onPacket(packet) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            this.emitReserved(\"packet\", packet);\n            // Socket is live - any packet counts\n            this.emitReserved(\"heartbeat\");\n            this.resetPingTimeout();\n            switch (packet.type) {\n                case \"open\":\n                    this.onHandshake(JSON.parse(packet.data));\n                    break;\n                case \"ping\":\n                    this.sendPacket(\"pong\");\n                    this.emitReserved(\"ping\");\n                    this.emitReserved(\"pong\");\n                    break;\n                case \"error\":\n                    const err = new Error(\"server error\");\n                    // @ts-ignore\n                    err.code = packet.data;\n                    this.onError(err);\n                    break;\n                case \"message\":\n                    this.emitReserved(\"data\", packet.data);\n                    this.emitReserved(\"message\", packet.data);\n                    break;\n            }\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon handshake completion.\n     *\n     * @param {Object} data - handshake obj\n     * @private\n     */\n    onHandshake(data) {\n        this.emitReserved(\"handshake\", data);\n        this.id = data.sid;\n        this.transport.query.sid = data.sid;\n        this.upgrades = this.filterUpgrades(data.upgrades);\n        this.pingInterval = data.pingInterval;\n        this.pingTimeout = data.pingTimeout;\n        this.maxPayload = data.maxPayload;\n        this.onOpen();\n        // In case open handler closes socket\n        if (\"closed\" === this.readyState)\n            return;\n        this.resetPingTimeout();\n    }\n    /**\n     * Sets and resets ping timeout timer based on server pings.\n     *\n     * @private\n     */\n    resetPingTimeout() {\n        this.clearTimeoutFn(this.pingTimeoutTimer);\n        this.pingTimeoutTimer = this.setTimeoutFn(() => {\n            this.onClose(\"ping timeout\");\n        }, this.pingInterval + this.pingTimeout);\n        if (this.opts.autoUnref) {\n            this.pingTimeoutTimer.unref();\n        }\n    }\n    /**\n     * Called on `drain` event\n     *\n     * @private\n     */\n    onDrain() {\n        this.writeBuffer.splice(0, this.prevBufferLen);\n        // setting prevBufferLen = 0 is very important\n        // for example, when upgrading, upgrade packet is sent over,\n        // and a nonzero prevBufferLen could cause problems on `drain`\n        this.prevBufferLen = 0;\n        if (0 === this.writeBuffer.length) {\n            this.emitReserved(\"drain\");\n        }\n        else {\n            this.flush();\n        }\n    }\n    /**\n     * Flush write buffers.\n     *\n     * @private\n     */\n    flush() {\n        if (\"closed\" !== this.readyState &&\n            this.transport.writable &&\n            !this.upgrading &&\n            this.writeBuffer.length) {\n            const packets = this.getWritablePackets();\n            this.transport.send(packets);\n            // keep track of current length of writeBuffer\n            // splice writeBuffer and callbackBuffer on `drain`\n            this.prevBufferLen = packets.length;\n            this.emitReserved(\"flush\");\n        }\n    }\n    /**\n     * Ensure the encoded size of the writeBuffer is below the maxPayload value sent by the server (only for HTTP\n     * long-polling)\n     *\n     * @private\n     */\n    getWritablePackets() {\n        const shouldCheckPayloadSize = this.maxPayload &&\n            this.transport.name === \"polling\" &&\n            this.writeBuffer.length > 1;\n        if (!shouldCheckPayloadSize) {\n            return this.writeBuffer;\n        }\n        let payloadSize = 1; // first packet type\n        for (let i = 0; i < this.writeBuffer.length; i++) {\n            const data = this.writeBuffer[i].data;\n            if (data) {\n                payloadSize += byteLength(data);\n            }\n            if (i > 0 && payloadSize > this.maxPayload) {\n                return this.writeBuffer.slice(0, i);\n            }\n            payloadSize += 2; // separator + packet type\n        }\n        return this.writeBuffer;\n    }\n    /**\n     * Sends a message.\n     *\n     * @param {String} msg - message.\n     * @param {Object} options.\n     * @param {Function} callback function.\n     * @return {Socket} for chaining.\n     */\n    write(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    send(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param {String} type: packet type.\n     * @param {String} data.\n     * @param {Object} options.\n     * @param {Function} fn - callback function.\n     * @private\n     */\n    sendPacket(type, data, options, fn) {\n        if (\"function\" === typeof data) {\n            fn = data;\n            data = undefined;\n        }\n        if (\"function\" === typeof options) {\n            fn = options;\n            options = null;\n        }\n        if (\"closing\" === this.readyState || \"closed\" === this.readyState) {\n            return;\n        }\n        options = options || {};\n        options.compress = false !== options.compress;\n        const packet = {\n            type: type,\n            data: data,\n            options: options,\n        };\n        this.emitReserved(\"packetCreate\", packet);\n        this.writeBuffer.push(packet);\n        if (fn)\n            this.once(\"flush\", fn);\n        this.flush();\n    }\n    /**\n     * Closes the connection.\n     */\n    close() {\n        const close = () => {\n            this.onClose(\"forced close\");\n            this.transport.close();\n        };\n        const cleanupAndClose = () => {\n            this.off(\"upgrade\", cleanupAndClose);\n            this.off(\"upgradeError\", cleanupAndClose);\n            close();\n        };\n        const waitForUpgrade = () => {\n            // wait for upgrade to finish since we can't send packets while pausing a transport\n            this.once(\"upgrade\", cleanupAndClose);\n            this.once(\"upgradeError\", cleanupAndClose);\n        };\n        if (\"opening\" === this.readyState || \"open\" === this.readyState) {\n            this.readyState = \"closing\";\n            if (this.writeBuffer.length) {\n                this.once(\"drain\", () => {\n                    if (this.upgrading) {\n                        waitForUpgrade();\n                    }\n                    else {\n                        close();\n                    }\n                });\n            }\n            else if (this.upgrading) {\n                waitForUpgrade();\n            }\n            else {\n                close();\n            }\n        }\n        return this;\n    }\n    /**\n     * Called upon transport error\n     *\n     * @private\n     */\n    onError(err) {\n        Socket.priorWebsocketSuccess = false;\n        this.emitReserved(\"error\", err);\n        this.onClose(\"transport error\", err);\n    }\n    /**\n     * Called upon transport close.\n     *\n     * @private\n     */\n    onClose(reason, description) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            // clear timers\n            this.clearTimeoutFn(this.pingTimeoutTimer);\n            // stop event from firing again for transport\n            this.transport.removeAllListeners(\"close\");\n            // ensure transport won't stay open\n            this.transport.close();\n            // ignore further transport communication\n            this.transport.removeAllListeners();\n            if (typeof removeEventListener === \"function\") {\n                removeEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n                removeEventListener(\"offline\", this.offlineEventListener, false);\n            }\n            // set ready state\n            this.readyState = \"closed\";\n            // clear session id\n            this.id = null;\n            // emit close event\n            this.emitReserved(\"close\", reason, description);\n            // clean buffers after, so users can still\n            // grab the buffers on `close` event\n            this.writeBuffer = [];\n            this.prevBufferLen = 0;\n        }\n    }\n    /**\n     * Filters upgrades, returning only those matching client transports.\n     *\n     * @param {Array} upgrades - server upgrades\n     * @private\n     */\n    filterUpgrades(upgrades) {\n        const filteredUpgrades = [];\n        let i = 0;\n        const j = upgrades.length;\n        for (; i < j; i++) {\n            if (~this.transports.indexOf(upgrades[i]))\n                filteredUpgrades.push(upgrades[i]);\n        }\n        return filteredUpgrades;\n    }\n}\nSocket.protocol = protocol;\n", "import { Socket } from \"./socket.js\";\nexport { Socket };\nexport const protocol = Socket.protocol;\nexport { Transport, TransportError } from \"./transport.js\";\nexport { transports } from \"./transports/index.js\";\nexport { installTimerFunctions } from \"./util.js\";\nexport { parse } from \"./contrib/parseuri.js\";\nexport { nextTick } from \"./transports/websocket-constructor.js\";\n", "import { parse } from \"engine.io-client\";\n/**\n * URL parser.\n *\n * @param uri - url\n * @param path - the request path of the connection\n * @param loc - An object meant to mimic window.location.\n *        Defaults to window.location.\n * @public\n */\nexport function url(uri, path = \"\", loc) {\n    let obj = uri;\n    // default to window.location\n    loc = loc || (typeof location !== \"undefined\" && location);\n    if (null == uri)\n        uri = loc.protocol + \"//\" + loc.host;\n    // relative path support\n    if (typeof uri === \"string\") {\n        if (\"/\" === uri.charAt(0)) {\n            if (\"/\" === uri.charAt(1)) {\n                uri = loc.protocol + uri;\n            }\n            else {\n                uri = loc.host + uri;\n            }\n        }\n        if (!/^(https?|wss?):\\/\\//.test(uri)) {\n            if (\"undefined\" !== typeof loc) {\n                uri = loc.protocol + \"//\" + uri;\n            }\n            else {\n                uri = \"https://\" + uri;\n            }\n        }\n        // parse\n        obj = parse(uri);\n    }\n    // make sure we treat `localhost:80` and `localhost` equally\n    if (!obj.port) {\n        if (/^(http|ws)$/.test(obj.protocol)) {\n            obj.port = \"80\";\n        }\n        else if (/^(http|ws)s$/.test(obj.protocol)) {\n            obj.port = \"443\";\n        }\n    }\n    obj.path = obj.path || \"/\";\n    const ipv6 = obj.host.indexOf(\":\") !== -1;\n    const host = ipv6 ? \"[\" + obj.host + \"]\" : obj.host;\n    // define unique id\n    obj.id = obj.protocol + \"://\" + host + \":\" + obj.port + path;\n    // define href\n    obj.href =\n        obj.protocol +\n            \"://\" +\n            host +\n            (loc && loc.port === obj.port ? \"\" : \":\" + obj.port);\n    return obj;\n}\n", "import { Emitter } from \"@socket.io/component-emitter\";\nimport { deconstructPacket, reconstructPacket } from \"./binary.js\";\nimport { isBinary, hasBinary } from \"./is-binary.js\";\n/**\n * These strings must not be used as event names, as they have a special meaning.\n */\nconst RESERVED_EVENTS = [\n    \"connect\",\n    \"connect_error\",\n    \"disconnect\",\n    \"disconnecting\",\n    \"newListener\",\n    \"removeListener\", // used by the Node.js EventEmitter\n];\n/**\n * Protocol version.\n *\n * @public\n */\nexport const protocol = 5;\nexport var PacketType;\n(function (PacketType) {\n    PacketType[PacketType[\"CONNECT\"] = 0] = \"CONNECT\";\n    PacketType[PacketType[\"DISCONNECT\"] = 1] = \"DISCONNECT\";\n    PacketType[PacketType[\"EVENT\"] = 2] = \"EVENT\";\n    PacketType[PacketType[\"ACK\"] = 3] = \"ACK\";\n    PacketType[PacketType[\"CONNECT_ERROR\"] = 4] = \"CONNECT_ERROR\";\n    PacketType[PacketType[\"BINARY_EVENT\"] = 5] = \"BINARY_EVENT\";\n    PacketType[PacketType[\"BINARY_ACK\"] = 6] = \"BINARY_ACK\";\n})(PacketType || (PacketType = {}));\n/**\n * A socket.io Encoder instance\n */\nexport class Encoder {\n    /**\n     * Encoder constructor\n     *\n     * @param {function} replacer - custom replacer to pass down to JSON.parse\n     */\n    constructor(replacer) {\n        this.replacer = replacer;\n    }\n    /**\n     * Encode a packet as a single string if non-binary, or as a\n     * buffer sequence, depending on packet type.\n     *\n     * @param {Object} obj - packet object\n     */\n    encode(obj) {\n        if (obj.type === PacketType.EVENT || obj.type === PacketType.ACK) {\n            if (hasBinary(obj)) {\n                return this.encodeAsBinary({\n                    type: obj.type === PacketType.EVENT\n                        ? PacketType.BINARY_EVENT\n                        : PacketType.BINARY_ACK,\n                    nsp: obj.nsp,\n                    data: obj.data,\n                    id: obj.id,\n                });\n            }\n        }\n        return [this.encodeAsString(obj)];\n    }\n    /**\n     * Encode packet as string.\n     */\n    encodeAsString(obj) {\n        // first is type\n        let str = \"\" + obj.type;\n        // attachments if we have them\n        if (obj.type === PacketType.BINARY_EVENT ||\n            obj.type === PacketType.BINARY_ACK) {\n            str += obj.attachments + \"-\";\n        }\n        // if we have a namespace other than `/`\n        // we append it followed by a comma `,`\n        if (obj.nsp && \"/\" !== obj.nsp) {\n            str += obj.nsp + \",\";\n        }\n        // immediately followed by the id\n        if (null != obj.id) {\n            str += obj.id;\n        }\n        // json data\n        if (null != obj.data) {\n            str += JSON.stringify(obj.data, this.replacer);\n        }\n        return str;\n    }\n    /**\n     * Encode packet as 'buffer sequence' by removing blobs, and\n     * deconstructing packet into object with placeholders and\n     * a list of buffers.\n     */\n    encodeAsBinary(obj) {\n        const deconstruction = deconstructPacket(obj);\n        const pack = this.encodeAsString(deconstruction.packet);\n        const buffers = deconstruction.buffers;\n        buffers.unshift(pack); // add packet info to beginning of data list\n        return buffers; // write all the buffers\n    }\n}\n// see https://stackoverflow.com/questions/8511281/check-if-a-value-is-an-object-in-javascript\nfunction isObject(value) {\n    return Object.prototype.toString.call(value) === \"[object Object]\";\n}\n/**\n * A socket.io Decoder instance\n *\n * @return {Object} decoder\n */\nexport class Decoder extends Emitter {\n    /**\n     * Decoder constructor\n     *\n     * @param {function} reviver - custom reviver to pass down to JSON.stringify\n     */\n    constructor(reviver) {\n        super();\n        this.reviver = reviver;\n    }\n    /**\n     * Decodes an encoded packet string into packet JSON.\n     *\n     * @param {String} obj - encoded packet\n     */\n    add(obj) {\n        let packet;\n        if (typeof obj === \"string\") {\n            if (this.reconstructor) {\n                throw new Error(\"got plaintext data when reconstructing a packet\");\n            }\n            packet = this.decodeString(obj);\n            const isBinaryEvent = packet.type === PacketType.BINARY_EVENT;\n            if (isBinaryEvent || packet.type === PacketType.BINARY_ACK) {\n                packet.type = isBinaryEvent ? PacketType.EVENT : PacketType.ACK;\n                // binary packet's json\n                this.reconstructor = new BinaryReconstructor(packet);\n                // no attachments, labeled binary but no binary data to follow\n                if (packet.attachments === 0) {\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n            else {\n                // non-binary full packet\n                super.emitReserved(\"decoded\", packet);\n            }\n        }\n        else if (isBinary(obj) || obj.base64) {\n            // raw binary data\n            if (!this.reconstructor) {\n                throw new Error(\"got binary data when not reconstructing a packet\");\n            }\n            else {\n                packet = this.reconstructor.takeBinaryData(obj);\n                if (packet) {\n                    // received final buffer\n                    this.reconstructor = null;\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n        }\n        else {\n            throw new Error(\"Unknown type: \" + obj);\n        }\n    }\n    /**\n     * Decode a packet String (JSON data)\n     *\n     * @param {String} str\n     * @return {Object} packet\n     */\n    decodeString(str) {\n        let i = 0;\n        // look up type\n        const p = {\n            type: Number(str.charAt(0)),\n        };\n        if (PacketType[p.type] === undefined) {\n            throw new Error(\"unknown packet type \" + p.type);\n        }\n        // look up attachments if type binary\n        if (p.type === PacketType.BINARY_EVENT ||\n            p.type === PacketType.BINARY_ACK) {\n            const start = i + 1;\n            while (str.charAt(++i) !== \"-\" && i != str.length) { }\n            const buf = str.substring(start, i);\n            if (buf != Number(buf) || str.charAt(i) !== \"-\") {\n                throw new Error(\"Illegal attachments\");\n            }\n            p.attachments = Number(buf);\n        }\n        // look up namespace (if any)\n        if (\"/\" === str.charAt(i + 1)) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (\",\" === c)\n                    break;\n                if (i === str.length)\n                    break;\n            }\n            p.nsp = str.substring(start, i);\n        }\n        else {\n            p.nsp = \"/\";\n        }\n        // look up id\n        const next = str.charAt(i + 1);\n        if (\"\" !== next && Number(next) == next) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (null == c || Number(c) != c) {\n                    --i;\n                    break;\n                }\n                if (i === str.length)\n                    break;\n            }\n            p.id = Number(str.substring(start, i + 1));\n        }\n        // look up json data\n        if (str.charAt(++i)) {\n            const payload = this.tryParse(str.substr(i));\n            if (Decoder.isPayloadValid(p.type, payload)) {\n                p.data = payload;\n            }\n            else {\n                throw new Error(\"invalid payload\");\n            }\n        }\n        return p;\n    }\n    tryParse(str) {\n        try {\n            return JSON.parse(str, this.reviver);\n        }\n        catch (e) {\n            return false;\n        }\n    }\n    static isPayloadValid(type, payload) {\n        switch (type) {\n            case PacketType.CONNECT:\n                return isObject(payload);\n            case PacketType.DISCONNECT:\n                return payload === undefined;\n            case PacketType.CONNECT_ERROR:\n                return typeof payload === \"string\" || isObject(payload);\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                return (Array.isArray(payload) &&\n                    (typeof payload[0] === \"number\" ||\n                        (typeof payload[0] === \"string\" &&\n                            RESERVED_EVENTS.indexOf(payload[0]) === -1)));\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                return Array.isArray(payload);\n        }\n    }\n    /**\n     * Deallocates a parser's resources\n     */\n    destroy() {\n        if (this.reconstructor) {\n            this.reconstructor.finishedReconstruction();\n            this.reconstructor = null;\n        }\n    }\n}\n/**\n * A manager of a binary event's 'buffer sequence'. Should\n * be constructed whenever a packet of type BINARY_EVENT is\n * decoded.\n *\n * @param {Object} packet\n * @return {BinaryReconstructor} initialized reconstructor\n */\nclass BinaryReconstructor {\n    constructor(packet) {\n        this.packet = packet;\n        this.buffers = [];\n        this.reconPack = packet;\n    }\n    /**\n     * Method to be called when binary data received from connection\n     * after a BINARY_EVENT packet.\n     *\n     * @param {Buffer | ArrayBuffer} binData - the raw binary data received\n     * @return {null | Object} returns null if more binary data is expected or\n     *   a reconstructed packet object if all buffers have been received.\n     */\n    takeBinaryData(binData) {\n        this.buffers.push(binData);\n        if (this.buffers.length === this.reconPack.attachments) {\n            // done with buffer list\n            const packet = reconstructPacket(this.reconPack, this.buffers);\n            this.finishedReconstruction();\n            return packet;\n        }\n        return null;\n    }\n    /**\n     * Cleans up binary packet reconstruction variables.\n     */\n    finishedReconstruction() {\n        this.reconPack = null;\n        this.buffers = [];\n    }\n}\n", "const withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nconst isView = (obj) => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj.buffer instanceof ArrayBuffer;\n};\nconst toString = Object.prototype.toString;\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeFile = typeof File === \"function\" ||\n    (typeof File !== \"undefined\" &&\n        toString.call(File) === \"[object FileConstructor]\");\n/**\n * Returns true if obj is a Buffer, an ArrayBuffer, a Blob or a File.\n *\n * @private\n */\nexport function isBinary(obj) {\n    return ((withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj))) ||\n        (withNativeBlob && obj instanceof Blob) ||\n        (withNativeFile && obj instanceof File));\n}\nexport function hasBinary(obj, toJSON) {\n    if (!obj || typeof obj !== \"object\") {\n        return false;\n    }\n    if (Array.isArray(obj)) {\n        for (let i = 0, l = obj.length; i < l; i++) {\n            if (hasBinary(obj[i])) {\n                return true;\n            }\n        }\n        return false;\n    }\n    if (isBinary(obj)) {\n        return true;\n    }\n    if (obj.toJSON &&\n        typeof obj.toJSON === \"function\" &&\n        arguments.length === 1) {\n        return hasBinary(obj.toJSON(), true);\n    }\n    for (const key in obj) {\n        if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {\n            return true;\n        }\n    }\n    return false;\n}\n", "import { isBinary } from \"./is-binary.js\";\n/**\n * Replaces every Buffer | ArrayBuffer | Blob | File in packet with a numbered placeholder.\n *\n * @param {Object} packet - socket.io event packet\n * @return {Object} with deconstructed packet and list of buffers\n * @public\n */\nexport function deconstructPacket(packet) {\n    const buffers = [];\n    const packetData = packet.data;\n    const pack = packet;\n    pack.data = _deconstructPacket(packetData, buffers);\n    pack.attachments = buffers.length; // number of binary 'attachments'\n    return { packet: pack, buffers: buffers };\n}\nfunction _deconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (isBinary(data)) {\n        const placeholder = { _placeholder: true, num: buffers.length };\n        buffers.push(data);\n        return placeholder;\n    }\n    else if (Array.isArray(data)) {\n        const newData = new Array(data.length);\n        for (let i = 0; i < data.length; i++) {\n            newData[i] = _deconstructPacket(data[i], buffers);\n        }\n        return newData;\n    }\n    else if (typeof data === \"object\" && !(data instanceof Date)) {\n        const newData = {};\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                newData[key] = _deconstructPacket(data[key], buffers);\n            }\n        }\n        return newData;\n    }\n    return data;\n}\n/**\n * Reconstructs a binary packet from its placeholder packet and buffers\n *\n * @param {Object} packet - event packet with placeholders\n * @param {Array} buffers - binary buffers to put in placeholder positions\n * @return {Object} reconstructed packet\n * @public\n */\nexport function reconstructPacket(packet, buffers) {\n    packet.data = _reconstructPacket(packet.data, buffers);\n    delete packet.attachments; // no longer useful\n    return packet;\n}\nfunction _reconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (data && data._placeholder === true) {\n        const isIndexValid = typeof data.num === \"number\" &&\n            data.num >= 0 &&\n            data.num < buffers.length;\n        if (isIndexValid) {\n            return buffers[data.num]; // appropriate buffer (should be natural order anyway)\n        }\n        else {\n            throw new Error(\"illegal attachments\");\n        }\n    }\n    else if (Array.isArray(data)) {\n        for (let i = 0; i < data.length; i++) {\n            data[i] = _reconstructPacket(data[i], buffers);\n        }\n    }\n    else if (typeof data === \"object\") {\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                data[key] = _reconstructPacket(data[key], buffers);\n            }\n        }\n    }\n    return data;\n}\n", "export function on(obj, ev, fn) {\n    obj.on(ev, fn);\n    return function subDestroy() {\n        obj.off(ev, fn);\n    };\n}\n", "import { PacketType } from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\n/**\n * Internal events.\n * These events can't be emitted by the user.\n */\nconst RESERVED_EVENTS = Object.freeze({\n    connect: 1,\n    connect_error: 1,\n    disconnect: 1,\n    disconnecting: 1,\n    // EventEmitter reserved events: https://nodejs.org/api/events.html#events_event_newlistener\n    newListener: 1,\n    removeListener: 1,\n});\n/**\n * A Socket is the fundamental class for interacting with the server.\n *\n * A Socket belongs to a certain Namespace (by default /) and uses an underlying {@link Manager} to communicate.\n *\n * @example\n * const socket = io();\n *\n * socket.on(\"connect\", () => {\n *   console.log(\"connected\");\n * });\n *\n * // send an event to the server\n * socket.emit(\"foo\", \"bar\");\n *\n * socket.on(\"foobar\", () => {\n *   // an event was received from the server\n * });\n *\n * // upon disconnection\n * socket.on(\"disconnect\", (reason) => {\n *   console.log(`disconnected due to ${reason}`);\n * });\n */\nexport class Socket extends Emitter {\n    /**\n     * `Socket` constructor.\n     */\n    constructor(io, nsp, opts) {\n        super();\n        /**\n         * Whether the socket is currently connected to the server.\n         *\n         * @example\n         * const socket = io();\n         *\n         * socket.on(\"connect\", () => {\n         *   console.log(socket.connected); // true\n         * });\n         *\n         * socket.on(\"disconnect\", () => {\n         *   console.log(socket.connected); // false\n         * });\n         */\n        this.connected = false;\n        /**\n         * Whether the connection state was recovered after a temporary disconnection. In that case, any missed packets will\n         * be transmitted by the server.\n         */\n        this.recovered = false;\n        /**\n         * Buffer for packets received before the CONNECT packet\n         */\n        this.receiveBuffer = [];\n        /**\n         * Buffer for packets that will be sent once the socket is connected\n         */\n        this.sendBuffer = [];\n        /**\n         * The queue of packets to be sent with retry in case of failure.\n         *\n         * Packets are sent one by one, each waiting for the server acknowledgement, in order to guarantee the delivery order.\n         * @private\n         */\n        this._queue = [];\n        /**\n         * A sequence to generate the ID of the {@link QueuedPacket}.\n         * @private\n         */\n        this._queueSeq = 0;\n        this.ids = 0;\n        this.acks = {};\n        this.flags = {};\n        this.io = io;\n        this.nsp = nsp;\n        if (opts && opts.auth) {\n            this.auth = opts.auth;\n        }\n        this._opts = Object.assign({}, opts);\n        if (this.io._autoConnect)\n            this.open();\n    }\n    /**\n     * Whether the socket is currently disconnected\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"connect\", () => {\n     *   console.log(socket.disconnected); // false\n     * });\n     *\n     * socket.on(\"disconnect\", () => {\n     *   console.log(socket.disconnected); // true\n     * });\n     */\n    get disconnected() {\n        return !this.connected;\n    }\n    /**\n     * Subscribe to open, close and packet events\n     *\n     * @private\n     */\n    subEvents() {\n        if (this.subs)\n            return;\n        const io = this.io;\n        this.subs = [\n            on(io, \"open\", this.onopen.bind(this)),\n            on(io, \"packet\", this.onpacket.bind(this)),\n            on(io, \"error\", this.onerror.bind(this)),\n            on(io, \"close\", this.onclose.bind(this)),\n        ];\n    }\n    /**\n     * Whether the Socket will try to reconnect when its Manager connects or reconnects.\n     *\n     * @example\n     * const socket = io();\n     *\n     * console.log(socket.active); // true\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   if (reason === \"io server disconnect\") {\n     *     // the disconnection was initiated by the server, you need to manually reconnect\n     *     console.log(socket.active); // false\n     *   }\n     *   // else the socket will automatically try to reconnect\n     *   console.log(socket.active); // true\n     * });\n     */\n    get active() {\n        return !!this.subs;\n    }\n    /**\n     * \"Opens\" the socket.\n     *\n     * @example\n     * const socket = io({\n     *   autoConnect: false\n     * });\n     *\n     * socket.connect();\n     */\n    connect() {\n        if (this.connected)\n            return this;\n        this.subEvents();\n        if (!this.io[\"_reconnecting\"])\n            this.io.open(); // ensure open\n        if (\"open\" === this.io._readyState)\n            this.onopen();\n        return this;\n    }\n    /**\n     * Alias for {@link connect()}.\n     */\n    open() {\n        return this.connect();\n    }\n    /**\n     * Sends a `message` event.\n     *\n     * This method mimics the WebSocket.send() method.\n     *\n     * @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send\n     *\n     * @example\n     * socket.send(\"hello\");\n     *\n     * // this is equivalent to\n     * socket.emit(\"message\", \"hello\");\n     *\n     * @return self\n     */\n    send(...args) {\n        args.unshift(\"message\");\n        this.emit.apply(this, args);\n        return this;\n    }\n    /**\n     * Override `emit`.\n     * If the event is in `events`, it's emitted normally.\n     *\n     * @example\n     * socket.emit(\"hello\", \"world\");\n     *\n     * // all serializable datastructures are supported (no need to call JSON.stringify)\n     * socket.emit(\"hello\", 1, \"2\", { 3: [\"4\"], 5: Uint8Array.from([6]) });\n     *\n     * // with an acknowledgement from the server\n     * socket.emit(\"hello\", \"world\", (val) => {\n     *   // ...\n     * });\n     *\n     * @return self\n     */\n    emit(ev, ...args) {\n        if (RESERVED_EVENTS.hasOwnProperty(ev)) {\n            throw new Error('\"' + ev.toString() + '\" is a reserved event name');\n        }\n        args.unshift(ev);\n        if (this._opts.retries && !this.flags.fromQueue && !this.flags.volatile) {\n            this._addToQueue(args);\n            return this;\n        }\n        const packet = {\n            type: PacketType.EVENT,\n            data: args,\n        };\n        packet.options = {};\n        packet.options.compress = this.flags.compress !== false;\n        // event ack callback\n        if (\"function\" === typeof args[args.length - 1]) {\n            const id = this.ids++;\n            const ack = args.pop();\n            this._registerAckCallback(id, ack);\n            packet.id = id;\n        }\n        const isTransportWritable = this.io.engine &&\n            this.io.engine.transport &&\n            this.io.engine.transport.writable;\n        const discardPacket = this.flags.volatile && (!isTransportWritable || !this.connected);\n        if (discardPacket) {\n        }\n        else if (this.connected) {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        }\n        else {\n            this.sendBuffer.push(packet);\n        }\n        this.flags = {};\n        return this;\n    }\n    /**\n     * @private\n     */\n    _registerAckCallback(id, ack) {\n        var _a;\n        const timeout = (_a = this.flags.timeout) !== null && _a !== void 0 ? _a : this._opts.ackTimeout;\n        if (timeout === undefined) {\n            this.acks[id] = ack;\n            return;\n        }\n        // @ts-ignore\n        const timer = this.io.setTimeoutFn(() => {\n            delete this.acks[id];\n            for (let i = 0; i < this.sendBuffer.length; i++) {\n                if (this.sendBuffer[i].id === id) {\n                    this.sendBuffer.splice(i, 1);\n                }\n            }\n            ack.call(this, new Error(\"operation has timed out\"));\n        }, timeout);\n        this.acks[id] = (...args) => {\n            // @ts-ignore\n            this.io.clearTimeoutFn(timer);\n            ack.apply(this, [null, ...args]);\n        };\n    }\n    /**\n     * Emits an event and waits for an acknowledgement\n     *\n     * @example\n     * // without timeout\n     * const response = await socket.emitWithAck(\"hello\", \"world\");\n     *\n     * // with a specific timeout\n     * try {\n     *   const response = await socket.timeout(1000).emitWithAck(\"hello\", \"world\");\n     * } catch (err) {\n     *   // the server did not acknowledge the event in the given delay\n     * }\n     *\n     * @return a Promise that will be fulfilled when the server acknowledges the event\n     */\n    emitWithAck(ev, ...args) {\n        // the timeout flag is optional\n        const withErr = this.flags.timeout !== undefined || this._opts.ackTimeout !== undefined;\n        return new Promise((resolve, reject) => {\n            args.push((arg1, arg2) => {\n                if (withErr) {\n                    return arg1 ? reject(arg1) : resolve(arg2);\n                }\n                else {\n                    return resolve(arg1);\n                }\n            });\n            this.emit(ev, ...args);\n        });\n    }\n    /**\n     * Add the packet to the queue.\n     * @param args\n     * @private\n     */\n    _addToQueue(args) {\n        let ack;\n        if (typeof args[args.length - 1] === \"function\") {\n            ack = args.pop();\n        }\n        const packet = {\n            id: this._queueSeq++,\n            tryCount: 0,\n            pending: false,\n            args,\n            flags: Object.assign({ fromQueue: true }, this.flags),\n        };\n        args.push((err, ...responseArgs) => {\n            if (packet !== this._queue[0]) {\n                // the packet has already been acknowledged\n                return;\n            }\n            const hasError = err !== null;\n            if (hasError) {\n                if (packet.tryCount > this._opts.retries) {\n                    this._queue.shift();\n                    if (ack) {\n                        ack(err);\n                    }\n                }\n            }\n            else {\n                this._queue.shift();\n                if (ack) {\n                    ack(null, ...responseArgs);\n                }\n            }\n            packet.pending = false;\n            return this._drainQueue();\n        });\n        this._queue.push(packet);\n        this._drainQueue();\n    }\n    /**\n     * Send the first packet of the queue, and wait for an acknowledgement from the server.\n     * @param force - whether to resend a packet that has not been acknowledged yet\n     *\n     * @private\n     */\n    _drainQueue(force = false) {\n        if (!this.connected || this._queue.length === 0) {\n            return;\n        }\n        const packet = this._queue[0];\n        if (packet.pending && !force) {\n            return;\n        }\n        packet.pending = true;\n        packet.tryCount++;\n        this.flags = packet.flags;\n        this.emit.apply(this, packet.args);\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param packet\n     * @private\n     */\n    packet(packet) {\n        packet.nsp = this.nsp;\n        this.io._packet(packet);\n    }\n    /**\n     * Called upon engine `open`.\n     *\n     * @private\n     */\n    onopen() {\n        if (typeof this.auth == \"function\") {\n            this.auth((data) => {\n                this._sendConnectPacket(data);\n            });\n        }\n        else {\n            this._sendConnectPacket(this.auth);\n        }\n    }\n    /**\n     * Sends a CONNECT packet to initiate the Socket.IO session.\n     *\n     * @param data\n     * @private\n     */\n    _sendConnectPacket(data) {\n        this.packet({\n            type: PacketType.CONNECT,\n            data: this._pid\n                ? Object.assign({ pid: this._pid, offset: this._lastOffset }, data)\n                : data,\n        });\n    }\n    /**\n     * Called upon engine or manager `error`.\n     *\n     * @param err\n     * @private\n     */\n    onerror(err) {\n        if (!this.connected) {\n            this.emitReserved(\"connect_error\", err);\n        }\n    }\n    /**\n     * Called upon engine `close`.\n     *\n     * @param reason\n     * @param description\n     * @private\n     */\n    onclose(reason, description) {\n        this.connected = false;\n        delete this.id;\n        this.emitReserved(\"disconnect\", reason, description);\n    }\n    /**\n     * Called with socket packet.\n     *\n     * @param packet\n     * @private\n     */\n    onpacket(packet) {\n        const sameNamespace = packet.nsp === this.nsp;\n        if (!sameNamespace)\n            return;\n        switch (packet.type) {\n            case PacketType.CONNECT:\n                if (packet.data && packet.data.sid) {\n                    this.onconnect(packet.data.sid, packet.data.pid);\n                }\n                else {\n                    this.emitReserved(\"connect_error\", new Error(\"It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)\"));\n                }\n                break;\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                this.onevent(packet);\n                break;\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                this.onack(packet);\n                break;\n            case PacketType.DISCONNECT:\n                this.ondisconnect();\n                break;\n            case PacketType.CONNECT_ERROR:\n                this.destroy();\n                const err = new Error(packet.data.message);\n                // @ts-ignore\n                err.data = packet.data.data;\n                this.emitReserved(\"connect_error\", err);\n                break;\n        }\n    }\n    /**\n     * Called upon a server event.\n     *\n     * @param packet\n     * @private\n     */\n    onevent(packet) {\n        const args = packet.data || [];\n        if (null != packet.id) {\n            args.push(this.ack(packet.id));\n        }\n        if (this.connected) {\n            this.emitEvent(args);\n        }\n        else {\n            this.receiveBuffer.push(Object.freeze(args));\n        }\n    }\n    emitEvent(args) {\n        if (this._anyListeners && this._anyListeners.length) {\n            const listeners = this._anyListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, args);\n            }\n        }\n        super.emit.apply(this, args);\n        if (this._pid && args.length && typeof args[args.length - 1] === \"string\") {\n            this._lastOffset = args[args.length - 1];\n        }\n    }\n    /**\n     * Produces an ack callback to emit with an event.\n     *\n     * @private\n     */\n    ack(id) {\n        const self = this;\n        let sent = false;\n        return function (...args) {\n            // prevent double callbacks\n            if (sent)\n                return;\n            sent = true;\n            self.packet({\n                type: PacketType.ACK,\n                id: id,\n                data: args,\n            });\n        };\n    }\n    /**\n     * Called upon a server acknowlegement.\n     *\n     * @param packet\n     * @private\n     */\n    onack(packet) {\n        const ack = this.acks[packet.id];\n        if (\"function\" === typeof ack) {\n            ack.apply(this, packet.data);\n            delete this.acks[packet.id];\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon server connect.\n     *\n     * @private\n     */\n    onconnect(id, pid) {\n        this.id = id;\n        this.recovered = pid && this._pid === pid;\n        this._pid = pid; // defined only if connection state recovery is enabled\n        this.connected = true;\n        this.emitBuffered();\n        this.emitReserved(\"connect\");\n        this._drainQueue(true);\n    }\n    /**\n     * Emit buffered events (received and emitted).\n     *\n     * @private\n     */\n    emitBuffered() {\n        this.receiveBuffer.forEach((args) => this.emitEvent(args));\n        this.receiveBuffer = [];\n        this.sendBuffer.forEach((packet) => {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        });\n        this.sendBuffer = [];\n    }\n    /**\n     * Called upon server disconnect.\n     *\n     * @private\n     */\n    ondisconnect() {\n        this.destroy();\n        this.onclose(\"io server disconnect\");\n    }\n    /**\n     * Called upon forced client/server side disconnections,\n     * this method ensures the manager stops tracking us and\n     * that reconnections don't get triggered for this.\n     *\n     * @private\n     */\n    destroy() {\n        if (this.subs) {\n            // clean subscriptions to avoid reconnections\n            this.subs.forEach((subDestroy) => subDestroy());\n            this.subs = undefined;\n        }\n        this.io[\"_destroy\"](this);\n    }\n    /**\n     * Disconnects the socket manually. In that case, the socket will not try to reconnect.\n     *\n     * If this is the last active Socket instance of the {@link Manager}, the low-level connection will be closed.\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   // console.log(reason); prints \"io client disconnect\"\n     * });\n     *\n     * socket.disconnect();\n     *\n     * @return self\n     */\n    disconnect() {\n        if (this.connected) {\n            this.packet({ type: PacketType.DISCONNECT });\n        }\n        // remove socket from pool\n        this.destroy();\n        if (this.connected) {\n            // fire events\n            this.onclose(\"io client disconnect\");\n        }\n        return this;\n    }\n    /**\n     * Alias for {@link disconnect()}.\n     *\n     * @return self\n     */\n    close() {\n        return this.disconnect();\n    }\n    /**\n     * Sets the compress flag.\n     *\n     * @example\n     * socket.compress(false).emit(\"hello\");\n     *\n     * @param compress - if `true`, compresses the sending data\n     * @return self\n     */\n    compress(compress) {\n        this.flags.compress = compress;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the event message will be dropped when this socket is not\n     * ready to send messages.\n     *\n     * @example\n     * socket.volatile.emit(\"hello\"); // the server may or may not receive it\n     *\n     * @returns self\n     */\n    get volatile() {\n        this.flags.volatile = true;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the callback will be called with an error when the\n     * given number of milliseconds have elapsed without an acknowledgement from the server:\n     *\n     * @example\n     * socket.timeout(5000).emit(\"my-event\", (err) => {\n     *   if (err) {\n     *     // the server did not acknowledge the event in the given delay\n     *   }\n     * });\n     *\n     * @returns self\n     */\n    timeout(timeout) {\n        this.flags.timeout = timeout;\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * @example\n     * socket.onAny((event, ...args) => {\n     *   console.log(`got ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * @example\n     * socket.prependAny((event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * }\n     *\n     * socket.onAny(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAny(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAny();\n     *\n     * @param listener\n     */\n    offAny(listener) {\n        if (!this._anyListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAny() {\n        return this._anyListeners || [];\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.onAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.prependAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * }\n     *\n     * socket.onAnyOutgoing(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAnyOutgoing(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAnyOutgoing();\n     *\n     * @param [listener] - the catch-all listener (optional)\n     */\n    offAnyOutgoing(listener) {\n        if (!this._anyOutgoingListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyOutgoingListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyOutgoingListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAnyOutgoing() {\n        return this._anyOutgoingListeners || [];\n    }\n    /**\n     * Notify the listeners for each packet sent\n     *\n     * @param packet\n     *\n     * @private\n     */\n    notifyOutgoingListeners(packet) {\n        if (this._anyOutgoingListeners && this._anyOutgoingListeners.length) {\n            const listeners = this._anyOutgoingListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, packet.data);\n            }\n        }\n    }\n}\n", "/**\n * Initialize backoff timer with `opts`.\n *\n * - `min` initial timeout in milliseconds [100]\n * - `max` max timeout [10000]\n * - `jitter` [0]\n * - `factor` [2]\n *\n * @param {Object} opts\n * @api public\n */\nexport function Backoff(opts) {\n    opts = opts || {};\n    this.ms = opts.min || 100;\n    this.max = opts.max || 10000;\n    this.factor = opts.factor || 2;\n    this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;\n    this.attempts = 0;\n}\n/**\n * Return the backoff duration.\n *\n * @return {Number}\n * @api public\n */\nBackoff.prototype.duration = function () {\n    var ms = this.ms * Math.pow(this.factor, this.attempts++);\n    if (this.jitter) {\n        var rand = Math.random();\n        var deviation = Math.floor(rand * this.jitter * ms);\n        ms = (Math.floor(rand * 10) & 1) == 0 ? ms - deviation : ms + deviation;\n    }\n    return Math.min(ms, this.max) | 0;\n};\n/**\n * Reset the number of attempts.\n *\n * @api public\n */\nBackoff.prototype.reset = function () {\n    this.attempts = 0;\n};\n/**\n * Set the minimum duration\n *\n * @api public\n */\nBackoff.prototype.setMin = function (min) {\n    this.ms = min;\n};\n/**\n * Set the maximum duration\n *\n * @api public\n */\nBackoff.prototype.setMax = function (max) {\n    this.max = max;\n};\n/**\n * Set the jitter\n *\n * @api public\n */\nBackoff.prototype.setJitter = function (jitter) {\n    this.jitter = jitter;\n};\n", "import { Socket as Engine, installTimerFunctions, nextTick, } from \"engine.io-client\";\nimport { Socket } from \"./socket.js\";\nimport * as parser from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Backoff } from \"./contrib/backo2.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\nexport class Manager extends Emitter {\n    constructor(uri, opts) {\n        var _a;\n        super();\n        this.nsps = {};\n        this.subs = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = undefined;\n        }\n        opts = opts || {};\n        opts.path = opts.path || \"/socket.io\";\n        this.opts = opts;\n        installTimerFunctions(this, opts);\n        this.reconnection(opts.reconnection !== false);\n        this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);\n        this.reconnectionDelay(opts.reconnectionDelay || 1000);\n        this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);\n        this.randomizationFactor((_a = opts.randomizationFactor) !== null && _a !== void 0 ? _a : 0.5);\n        this.backoff = new Backoff({\n            min: this.reconnectionDelay(),\n            max: this.reconnectionDelayMax(),\n            jitter: this.randomizationFactor(),\n        });\n        this.timeout(null == opts.timeout ? 20000 : opts.timeout);\n        this._readyState = \"closed\";\n        this.uri = uri;\n        const _parser = opts.parser || parser;\n        this.encoder = new _parser.Encoder();\n        this.decoder = new _parser.Decoder();\n        this._autoConnect = opts.autoConnect !== false;\n        if (this._autoConnect)\n            this.open();\n    }\n    reconnection(v) {\n        if (!arguments.length)\n            return this._reconnection;\n        this._reconnection = !!v;\n        return this;\n    }\n    reconnectionAttempts(v) {\n        if (v === undefined)\n            return this._reconnectionAttempts;\n        this._reconnectionAttempts = v;\n        return this;\n    }\n    reconnectionDelay(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelay;\n        this._reconnectionDelay = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMin(v);\n        return this;\n    }\n    randomizationFactor(v) {\n        var _a;\n        if (v === undefined)\n            return this._randomizationFactor;\n        this._randomizationFactor = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setJitter(v);\n        return this;\n    }\n    reconnectionDelayMax(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelayMax;\n        this._reconnectionDelayMax = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMax(v);\n        return this;\n    }\n    timeout(v) {\n        if (!arguments.length)\n            return this._timeout;\n        this._timeout = v;\n        return this;\n    }\n    /**\n     * Starts trying to reconnect if reconnection is enabled and we have not\n     * started reconnecting yet\n     *\n     * @private\n     */\n    maybeReconnectOnOpen() {\n        // Only try to reconnect if it's the first time we're connecting\n        if (!this._reconnecting &&\n            this._reconnection &&\n            this.backoff.attempts === 0) {\n            // keeps reconnection from firing twice for the same reconnection loop\n            this.reconnect();\n        }\n    }\n    /**\n     * Sets the current transport `socket`.\n     *\n     * @param {Function} fn - optional, callback\n     * @return self\n     * @public\n     */\n    open(fn) {\n        if (~this._readyState.indexOf(\"open\"))\n            return this;\n        this.engine = new Engine(this.uri, this.opts);\n        const socket = this.engine;\n        const self = this;\n        this._readyState = \"opening\";\n        this.skipReconnect = false;\n        // emit `open`\n        const openSubDestroy = on(socket, \"open\", function () {\n            self.onopen();\n            fn && fn();\n        });\n        const onError = (err) => {\n            this.cleanup();\n            this._readyState = \"closed\";\n            this.emitReserved(\"error\", err);\n            if (fn) {\n                fn(err);\n            }\n            else {\n                // Only do this if there is no fn to handle the error\n                this.maybeReconnectOnOpen();\n            }\n        };\n        // emit `error`\n        const errorSub = on(socket, \"error\", onError);\n        if (false !== this._timeout) {\n            const timeout = this._timeout;\n            // set timer\n            const timer = this.setTimeoutFn(() => {\n                openSubDestroy();\n                onError(new Error(\"timeout\"));\n                socket.close();\n            }, timeout);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n        this.subs.push(openSubDestroy);\n        this.subs.push(errorSub);\n        return this;\n    }\n    /**\n     * Alias for open()\n     *\n     * @return self\n     * @public\n     */\n    connect(fn) {\n        return this.open(fn);\n    }\n    /**\n     * Called upon transport open.\n     *\n     * @private\n     */\n    onopen() {\n        // clear old subs\n        this.cleanup();\n        // mark as open\n        this._readyState = \"open\";\n        this.emitReserved(\"open\");\n        // add new subs\n        const socket = this.engine;\n        this.subs.push(on(socket, \"ping\", this.onping.bind(this)), on(socket, \"data\", this.ondata.bind(this)), on(socket, \"error\", this.onerror.bind(this)), on(socket, \"close\", this.onclose.bind(this)), on(this.decoder, \"decoded\", this.ondecoded.bind(this)));\n    }\n    /**\n     * Called upon a ping.\n     *\n     * @private\n     */\n    onping() {\n        this.emitReserved(\"ping\");\n    }\n    /**\n     * Called with data.\n     *\n     * @private\n     */\n    ondata(data) {\n        try {\n            this.decoder.add(data);\n        }\n        catch (e) {\n            this.onclose(\"parse error\", e);\n        }\n    }\n    /**\n     * Called when parser fully decodes a packet.\n     *\n     * @private\n     */\n    ondecoded(packet) {\n        // the nextTick call prevents an exception in a user-provided event listener from triggering a disconnection due to a \"parse error\"\n        nextTick(() => {\n            this.emitReserved(\"packet\", packet);\n        }, this.setTimeoutFn);\n    }\n    /**\n     * Called upon socket error.\n     *\n     * @private\n     */\n    onerror(err) {\n        this.emitReserved(\"error\", err);\n    }\n    /**\n     * Creates a new socket for the given `nsp`.\n     *\n     * @return {Socket}\n     * @public\n     */\n    socket(nsp, opts) {\n        let socket = this.nsps[nsp];\n        if (!socket) {\n            socket = new Socket(this, nsp, opts);\n            this.nsps[nsp] = socket;\n        }\n        else if (this._autoConnect && !socket.active) {\n            socket.connect();\n        }\n        return socket;\n    }\n    /**\n     * Called upon a socket close.\n     *\n     * @param socket\n     * @private\n     */\n    _destroy(socket) {\n        const nsps = Object.keys(this.nsps);\n        for (const nsp of nsps) {\n            const socket = this.nsps[nsp];\n            if (socket.active) {\n                return;\n            }\n        }\n        this._close();\n    }\n    /**\n     * Writes a packet.\n     *\n     * @param packet\n     * @private\n     */\n    _packet(packet) {\n        const encodedPackets = this.encoder.encode(packet);\n        for (let i = 0; i < encodedPackets.length; i++) {\n            this.engine.write(encodedPackets[i], packet.options);\n        }\n    }\n    /**\n     * Clean up transport subscriptions and packet buffer.\n     *\n     * @private\n     */\n    cleanup() {\n        this.subs.forEach((subDestroy) => subDestroy());\n        this.subs.length = 0;\n        this.decoder.destroy();\n    }\n    /**\n     * Close the current socket.\n     *\n     * @private\n     */\n    _close() {\n        this.skipReconnect = true;\n        this._reconnecting = false;\n        this.onclose(\"forced close\");\n        if (this.engine)\n            this.engine.close();\n    }\n    /**\n     * Alias for close()\n     *\n     * @private\n     */\n    disconnect() {\n        return this._close();\n    }\n    /**\n     * Called upon engine close.\n     *\n     * @private\n     */\n    onclose(reason, description) {\n        this.cleanup();\n        this.backoff.reset();\n        this._readyState = \"closed\";\n        this.emitReserved(\"close\", reason, description);\n        if (this._reconnection && !this.skipReconnect) {\n            this.reconnect();\n        }\n    }\n    /**\n     * Attempt a reconnection.\n     *\n     * @private\n     */\n    reconnect() {\n        if (this._reconnecting || this.skipReconnect)\n            return this;\n        const self = this;\n        if (this.backoff.attempts >= this._reconnectionAttempts) {\n            this.backoff.reset();\n            this.emitReserved(\"reconnect_failed\");\n            this._reconnecting = false;\n        }\n        else {\n            const delay = this.backoff.duration();\n            this._reconnecting = true;\n            const timer = this.setTimeoutFn(() => {\n                if (self.skipReconnect)\n                    return;\n                this.emitReserved(\"reconnect_attempt\", self.backoff.attempts);\n                // check again for the case socket closed in above events\n                if (self.skipReconnect)\n                    return;\n                self.open((err) => {\n                    if (err) {\n                        self._reconnecting = false;\n                        self.reconnect();\n                        this.emitReserved(\"reconnect_error\", err);\n                    }\n                    else {\n                        self.onreconnect();\n                    }\n                });\n            }, delay);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n    }\n    /**\n     * Called upon successful reconnect.\n     *\n     * @private\n     */\n    onreconnect() {\n        const attempt = this.backoff.attempts;\n        this._reconnecting = false;\n        this.backoff.reset();\n        this.emitReserved(\"reconnect\", attempt);\n    }\n}\n", "import { url } from \"./url.js\";\nimport { Manager } from \"./manager.js\";\nimport { Socket } from \"./socket.js\";\n/**\n * Managers cache.\n */\nconst cache = {};\nfunction lookup(uri, opts) {\n    if (typeof uri === \"object\") {\n        opts = uri;\n        uri = undefined;\n    }\n    opts = opts || {};\n    const parsed = url(uri, opts.path || \"/socket.io\");\n    const source = parsed.source;\n    const id = parsed.id;\n    const path = parsed.path;\n    const sameNamespace = cache[id] && path in cache[id][\"nsps\"];\n    const newConnection = opts.forceNew ||\n        opts[\"force new connection\"] ||\n        false === opts.multiplex ||\n        sameNamespace;\n    let io;\n    if (newConnection) {\n        io = new Manager(source, opts);\n    }\n    else {\n        if (!cache[id]) {\n            cache[id] = new Manager(source, opts);\n        }\n        io = cache[id];\n    }\n    if (parsed.query && !opts.query) {\n        opts.query = parsed.queryKey;\n    }\n    return io.socket(parsed.path, opts);\n}\n// so that \"lookup\" can be used both as a function (e.g. `io(...)`) and as a\n// namespace (e.g. `io.connect(...)`), for backward compatibility\nObject.assign(lookup, {\n    Manager,\n    Socket,\n    io: lookup,\n    connect: lookup,\n});\n/**\n * Protocol version.\n *\n * @public\n */\nexport { protocol } from \"socket.io-parser\";\n/**\n * Expose constructors for standalone build.\n *\n * @public\n */\nexport { Manager, Socket, lookup as io, lookup as connect, lookup as default, };\n"],
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+  "names": ["require_ui", "__commonJSMin", "exports", "module", "_a", "Ui", "win", "extLog", "jsonHighlight", "__publicField", "config", "notify", "resolve", "reject", "ev", "ui", "isRecurse", "compToAdd", "i", "newEl", "elParent", "el", "comp", "attrib", "type", "evt", "err", "prop", "parentEl", "components", "ns", "component", "__toESM", "__require", "script", "sheet", "msg", "all", "compToRemove", "els", "compToReplace", "elToReplace", "compToUpd", "elToUpd", "mdText", "opts", "str", "lang", "md", "url", "uiOptions", "response", "error", "contentType", "slot", "txtReturn", "data", "newScript", "textFn", "newStyle", "node", "cssSelector", "thisOut", "listEntries", "bodyEntries", "headEntries", "cols", "v", "permit", "html", "content", "toaster", "toast", "json", "propName", "selection", "out", "p", "key", "import_ui", "_UibVar", "__publicField", "attrib", "oldVal", "newVal", "val", "t", "UibVar", "PACKET_TYPES", "PACKET_TYPES_REVERSE", "key", "ERROR_PACKET", "withNativeBlob", "withNativeArrayBuffer", "isView", "obj", "encodePacket", "type", "data", "supportsBinary", "callback", "encodeBlobAsBase64", "PACKET_TYPES", "fileReader", "content", "toArray", "TEXT_ENCODER", "encodePacketToBinary", "packet", "encoded", "chars", "lookup", "i", "decode", "base64", "bufferLength", "len", "p", "encoded1", "encoded2", "encoded3", "encoded4", "arraybuffer", "bytes", "lookup", "withNativeArrayBuffer", "decodePacket", "encodedPacket", "binaryType", "mapBinary", "type", "decodeBase64Packet", "PACKET_TYPES_REVERSE", "ERROR_PACKET", "data", "decoded", "decode", "SEPARATOR", "encodePayload", "packets", "callback", "length", "encodedPackets", "count", "packet", "i", "encodePacket", "encodedPacket", "decodePayload", "encodedPayload", "binaryType", "decodedPacket", "decodePacket", "createPacketEncoderStream", "controller", "encodePacketToBinary", "payloadLength", "header", "view", "TEXT_DECODER", "totalLength", "chunks", "acc", "chunk", "concatChunks", "size", "buffer", "j", "createPacketDecoderStream", "maxPayload", "state", "expectedLength", "isBinary", "headerArray", "n", "ERROR_PACKET", "data", "protocol", "Emitter", "obj", "mixin", "key", "event", "fn", "on", "callbacks", "cb", "i", "args", "len", "globalThisShim", "pick", "obj", "attr", "acc", "k", "NATIVE_SET_TIMEOUT", "globalThisShim", "NATIVE_CLEAR_TIMEOUT", "installTimerFunctions", "opts", "BASE64_OVERHEAD", "byteLength", "utf8Length", "str", "c", "length", "l", "encode", "obj", "str", "i", "decode", "qs", "qry", "pairs", "l", "pair", "TransportError", "reason", "description", "context", "Transport", "Emitter", "opts", "installTimerFunctions", "packets", "data", "packet", "decodePacket", "details", "onPause", "schema", "query", "hostname", "encodedQuery", "encode", "alphabet", "length", "map", "seed", "i", "prev", "encode", "num", "encoded", "yeast", "now", "encode", "prev", "seed", "i", "length", "map", "alphabet", "value", "hasCORS", "XHR", "opts", "xdomain", "hasCORS", "globalThisShim", "empty", "hasXHR2", "XHR", "Polling", "Transport", "opts", "isSSL", "port", "forceBase64", "onPause", "pause", "total", "data", "callback", "packet", "decodePayload", "close", "packets", "encodePayload", "schema", "query", "yeast", "Request", "fn", "req", "xhrStatus", "context", "_Request", "Emitter", "uri", "installTimerFunctions", "_a", "pick", "xhr", "i", "e", "err", "fromError", "unloadHandler", "terminationEvent", "globalThisShim", "nextTick", "cb", "setTimeoutFn", "WebSocket", "globalThisShim", "usingBrowserWebSocket", "defaultBinaryType", "isReactNative", "WS", "Transport", "opts", "uri", "protocols", "pick", "usingBrowserWebSocket", "WebSocket", "err", "closeEvent", "ev", "packets", "i", "packet", "lastPacket", "encodePacket", "data", "nextTick", "schema", "query", "yeast", "WT", "Transport", "err", "stream", "decoderStream", "createPacketDecoderStream", "reader", "encoderStream", "createPacketEncoderStream", "read", "done", "value", "packet", "packets", "i", "lastPacket", "nextTick", "_a", "transports", "WS", "WT", "Polling", "re", "parts", "parse", "str", "src", "b", "e", "m", "uri", "i", "pathNames", "queryKey", "obj", "path", "regx", "names", "query", "data", "$0", "$1", "$2", "Socket", "_Socket", "Emitter", "uri", "opts", "defaultBinaryType", "parse", "installTimerFunctions", "decode", "name", "query", "protocol", "transports", "transport", "reason", "failed", "onTransportOpen", "msg", "cleanup", "err", "freezeTransport", "onerror", "error", "onTransportClose", "onclose", "onupgrade", "to", "i", "l", "packet", "data", "packets", "payloadSize", "byteLength", "options", "fn", "type", "close", "cleanupAndClose", "waitForUpgrade", "description", "upgrades", "filteredUpgrades", "j", "protocol", "Socket", "url", "uri", "path", "loc", "obj", "parse", "host", "esm_exports", "__export", "Decoder", "Encoder", "PacketType", "protocol", "withNativeArrayBuffer", "isView", "obj", "toString", "withNativeBlob", "withNativeFile", "isBinary", "hasBinary", "toJSON", "i", "l", "key", "deconstructPacket", "packet", "buffers", "packetData", "pack", "_deconstructPacket", "data", "isBinary", "placeholder", "newData", "key", "reconstructPacket", "_reconstructPacket", "i", "RESERVED_EVENTS", "protocol", "PacketType", "Encoder", "replacer", "obj", "hasBinary", "str", "deconstruction", "deconstructPacket", "pack", "buffers", "isObject", "value", "Decoder", "_Decoder", "Emitter", "reviver", "packet", "isBinaryEvent", "BinaryReconstructor", "isBinary", "i", "p", "start", "buf", "next", "c", "payload", "type", "binData", "reconstructPacket", "on", "obj", "ev", "fn", "RESERVED_EVENTS", "Socket", "Emitter", "io", "nsp", "opts", "on", "args", "ev", "packet", "PacketType", "id", "ack", "isTransportWritable", "_a", "timeout", "timer", "i", "withErr", "resolve", "reject", "arg1", "arg2", "err", "responseArgs", "force", "data", "reason", "description", "listeners", "listener", "self", "sent", "pid", "subDestroy", "compress", "Backoff", "opts", "ms", "rand", "deviation", "min", "max", "jitter", "Manager", "Emitter", "uri", "opts", "_a", "installTimerFunctions", "Backoff", "_parser", "esm_exports", "v", "fn", "Socket", "socket", "self", "openSubDestroy", "on", "onError", "err", "errorSub", "timeout", "timer", "data", "e", "packet", "nextTick", "nsp", "nsps", "encodedPackets", "subDestroy", "reason", "description", "delay", "attempt", "cache", "lookup", "uri", "opts", "parsed", "url", "source", "id", "path", "sameNamespace", "newConnection", "io", "Manager", "Socket", "version", "isMinified", "param", "logLevel", "LOG_STYLES", "log", "args", "level", "strLevel", "head", "makeMeAnObject", "thing", "property", "out", "urlJoin", "e", "syntaxHighlight", "json", "match", "cls", "_ui", "Ui", "_a", "_pingInterval", "_propChangeCallbacks", "_msgRecvdByTopicCallbacks", "_timerid", "_MsgHandler", "_isShowMsg", "_isShowStatus", "_sendUrlHash", "_extCommands", "_managedVars", "_showStatus", "_uiObservers", "Uib", "__publicField", "__privateAdd", "cb", "c", "splitC", "event", "__privateGet", "fullPath", "autoloadVars", "id", "prop", "val", "store", "autoload", "value", "autoVars", "title", "details", "callback", "nextCbRef", "propChangeCallback", "cbRef", "topic", "msgRecvdEvtCallback", "msg", "receivedMsg", "serverTimestamp", "offset", "cssSelector", "el", "originator", "ms", "oReq", "headers", "elapsedTime", "__privateSet", "varToCopy", "data", "exists", "url", "deflt", "ret", "toggle", "component", "mdText", "html", "textFn", "type", "ui", "propName", "uiOptions", "showHide", "parent", "slot", "config", "res", "err", "opts", "root", "entry", "startStop", "send", "showLog", "targetNode", "that", "mutationList", "mu", "oMu", "an", "i", "htmlCache", "msgToSend", "channel", "numMsgs", "domevent", "target", "props", "key", "ignoreAttribs", "attribs", "name", "form", "frmVals", "frmEl", "v", "classes", "payload", "nprops", "cmd", "quiet", "response", "info", "newUrl", "obj", "r", "receivedCtrlMsg", "txtToSend", "ioNamespace", "u", "t", "delay", "factor", "depth", "reason", "lookup", "options", "eMsg", "uibuilder", "uibuilder_module_default", "uibuilder", "UibVar"]
 }
diff --git a/front-end/uibuilder.iife.js b/front-end/uibuilder.iife.js
index fd31e4f6..29df7dc7 100644
--- a/front-end/uibuilder.iife.js
+++ b/front-end/uibuilder.iife.js
@@ -89,210 +89,7 @@
             this.syntaxHighlight = function() {
             };
         }
-        /** Directly manage UI via JSON
-         * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions
-         */
-        ui(json) {
-          let msg = {};
-          if (json._ui)
-            msg = json;
-          else
-            msg._ui = json;
-          this._uiManager(msg);
-        }
-        // TODO Add multi-slot
-        /** Replace or add an HTML element's slot from text or an HTML string
-         * Will use DOMPurify if that library has been loaded to window.
-         * param {*} ui Single entry from the msg._ui property
-         * @param {Element} el Reference to the element that we want to update
-         * @param {*} component The component we are trying to add/replace
-         */
-        replaceSlot(el, component) {
-          if (!component.slot)
-            return;
-          if (!el)
-            return;
-          if (this.window["DOMPurify"])
-            component.slot = this.window["DOMPurify"].sanitize(component.slot);
-          el.innerHTML = component.slot;
-        }
-        /** Converts markdown text input to HTML if the Markdown-IT library is loaded
-         * Otherwise simply returns the text
-         * @param {string} mdText The input markdown string
-         * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text
-         */
-        convertMarkdown(mdText) {
-          if (!mdText)
-            return "";
-          if (!this.window["markdownit"])
-            return mdText;
-          const opts = {
-            // eslint-disable-line object-shorthand
-            html: true,
-            linkify: true,
-            _highlight: true,
-            langPrefix: "language-",
-            highlight(str, lang) {
-              if (lang && this.window["hljs"] && this.window["hljs"].getLanguage(lang)) {
-                try {
-                  return `<pre class="highlight" data-language="${lang.toUpperCase()}">
-                                <code class="language-${lang}">${this.window["hljs"].highlightAuto(str).value}</code></pre>`;
-                } finally {
-                }
-              }
-              return `<pre class="highlight"><code>${md.utils.escapeHtml(str)}</code></pre>`;
-            }
-          };
-          const md = this.window["markdownit"](opts);
-          return md.render(mdText);
-        }
-        /** Sanitise HTML to make it safe - if the DOMPurify library is loaded
-         * Otherwise just returns that HTML as-is.
-         * @param {string} html The input HTML string
-         * @returns {string} The sanitised HTML or the original if DOMPurify not loaded
-         */
-        sanitiseHTML(html) {
-          if (!this.window["DOMPurify"])
-            return html;
-          return this.window["DOMPurify"].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs });
-        }
-        /** Replace or add an HTML element's slot from a Markdown string
-         * Only does something if the markdownit library has been loaded to window.
-         * Will use DOMPurify if that library has been loaded to window.
-         * @param {Element} el Reference to the element that we want to update
-         * @param {*} component The component we are trying to add/replace
-         */
-        replaceSlotMarkdown(el, component) {
-          if (!el)
-            return;
-          if (!component.slotMarkdown)
-            return;
-          component.slotMarkdown = this.convertMarkdown(component.slotMarkdown);
-          component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown);
-          el.innerHTML = component.slotMarkdown;
-        }
-        /** Attach a new remote script to the end of HEAD synchronously
-         * NOTE: It takes too long for most scripts to finish loading
-         *       so this is pretty useless to work with the dynamic UI features directly.
-         * @param {string} url The url to be used in the script src attribute
-         */
-        loadScriptSrc(url2) {
-          const newScript = this.document.createElement("script");
-          newScript.src = url2;
-          newScript.async = false;
-          this.document.head.appendChild(newScript);
-        }
-        /** Attach a new remote stylesheet link to the end of HEAD synchronously
-         * NOTE: It takes too long for most scripts to finish loading
-         *       so this is pretty useless to work with the dynamic UI features directly.
-         * @param {string} url The url to be used in the style link href attribute
-         */
-        loadStyleSrc(url2) {
-          const newStyle = this.document.createElement("link");
-          newStyle.href = url2;
-          newStyle.rel = "stylesheet";
-          newStyle.type = "text/css";
-          this.document.head.appendChild(newStyle);
-        }
-        /** Attach a new text script to the end of HEAD synchronously
-         * NOTE: It takes too long for most scripts to finish loading
-         *       so this is pretty useless to work with the dynamic UI features directly.
-         * @param {string} textFn The text to be loaded as a script
-         */
-        loadScriptTxt(textFn) {
-          const newScript = this.document.createElement("script");
-          newScript.async = false;
-          newScript.textContent = textFn;
-          this.document.head.appendChild(newScript);
-        }
-        /** Attach a new text stylesheet to the end of HEAD synchronously
-         * NOTE: It takes too long for most scripts to finish loading
-         *       so this is pretty useless to work with the dynamic UI features directly.
-         * @param {string} textFn The text to be loaded as a stylesheet
-         */
-        loadStyleTxt(textFn) {
-          const newStyle = this.document.createElement("style");
-          newStyle.textContent = textFn;
-          this.document.head.appendChild(newStyle);
-        }
-        /** Show a pop-over "toast" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen
-         * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,
-         *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,
-         *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/
-         * @param {"notify"|"alert"} type Dialog type
-         * @param {object} ui standardised ui data
-         * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.
-         * @returns {void}
-         */
-        showDialog(type, ui, msg) {
-          let content = "";
-          if (msg.payload && typeof msg.payload === "string")
-            content += msg.payload;
-          if (ui.content)
-            content += ui.content;
-          if (content === "") {
-            _a2.log(1, "Ui:showDialog", "Toast content is blank. Not shown.")();
-            return;
-          }
-          if (!ui.title && msg.topic)
-            ui.title = msg.topic;
-          if (ui.title)
-            content = `<p class="toast-head">${ui.title}</p><p>${content}</p>`;
-          if (ui.noAutohide)
-            ui.noAutoHide = ui.noAutohide;
-          if (ui.noAutoHide)
-            ui.autohide = !ui.noAutoHide;
-          if (ui.autoHideDelay) {
-            if (!ui.autohide)
-              ui.autohide = true;
-            ui.delay = ui.autoHideDelay;
-          } else
-            ui.autoHideDelay = 1e4;
-          if (!Object.prototype.hasOwnProperty.call(ui, "autohide"))
-            ui.autohide = true;
-          if (type === "alert") {
-            ui.modal = true;
-            ui.autohide = false;
-            content = `<svg viewBox="0 0 192.146 192.146" style="width:30;background-color:transparent;"><path d="M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z" /></svg> ${content}`;
-          }
-          let toaster = this.document.getElementById("toaster");
-          if (toaster === null) {
-            toaster = this.document.createElement("div");
-            toaster.id = "toaster";
-            toaster.title = "Click to clear all notifcations";
-            toaster.setAttribute("class", "toaster");
-            toaster.setAttribute("role", "dialog");
-            toaster.setAttribute("arial-label", "Toast message");
-            toaster.onclick = function() {
-              toaster.remove();
-            };
-            this.document.body.insertAdjacentElement("afterbegin", toaster);
-          }
-          const toast = this.document.createElement("div");
-          toast.title = "Click to clear this notifcation";
-          toast.setAttribute("class", `toast ${ui.variant ? ui.variant : ""} ${type}`);
-          toast.innerHTML = content;
-          toast.setAttribute("role", "alertdialog");
-          if (ui.modal)
-            toast.setAttribute("aria-modal", ui.modal);
-          toast.onclick = function(evt) {
-            evt.stopPropagation();
-            toast.remove();
-            if (toaster.childElementCount < 1)
-              toaster.remove();
-          };
-          if (type === "alert") {
-          }
-          toaster.insertAdjacentElement(ui.appendToast === true ? "beforeend" : "afterbegin", toast);
-          if (ui.autohide === true) {
-            setInterval(() => {
-              toast.remove();
-              if (toaster.childElementCount < 1)
-                toaster.remove();
-            }, ui.autoHideDelay);
-          }
-        }
-        // --- End of showDialog ---
+        //#region ---- Internal Methods ----
         /** Show a browser notification if the browser and the user allows it
          * @param {object} config Notification config data
          * @returns {Promise} Resolves on close or click event, returns the event.
@@ -326,74 +123,81 @@
             return Promise.reject(new Error("Browser refused to create a Notification"));
           }
         }
-        /** Show a browser notification if possible. Returns a promise
-         * Config can be a simple string, a Node-RED msg (topic as title, payload as body)
-         * or a Notifications API options object + config.title string.
-         * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification
-         * @param {object|string} config Notification config object or simple message string
-         * @returns {Promise} Resolves on close or click event, returns the event.
-         */
-        async notification(config) {
-          if (typeof config === "string") {
-            config = { body: config };
-          }
-          if (typeof Notification === "undefined")
-            return Promise.reject(new Error("Notifications not available in this browser"));
-          let permit = Notification.permission;
-          if (permit === "denied") {
-            return Promise.reject(new Error("Notifications not permitted by user"));
-          } else if (permit === "granted") {
-            return this._showNotification(config);
-          } else {
-            permit = await Notification.requestPermission();
-            if (permit === "granted") {
-              return this._showNotification(config);
-            }
-            return Promise.reject(new Error("Notifications not permitted by user"));
-          }
-        }
-        /** Load a dynamic UI from a JSON web reponse
-         * @param {string} url URL that will return the ui JSON
+        // Vue dynamic inserts Don't really work ...
+        // _uiAddVue(ui, isRecurse) {
+        //     // must be Vue
+        //     // must have only 1 root element
+        //     const compToAdd = ui.components[0]
+        //     const newEl = this.document.createElement(compToAdd.type)
+        //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload
+        //     this._uiComposeComponent(newEl, compToAdd)
+        //     // If nested components, go again - but don't pass payload to sub-components
+        //     if (compToAdd.components) {
+        //         this._uiExtendEl(newEl, compToAdd.components)
+        //     }
+        //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()
+        //     this.set('magick', newEl.outerHTML)
+        //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)
+        //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)
+        // }
+        // TODO Add check if ID already exists
+        // TODO Allow single add without using components array
+        /** Handle incoming msg._ui add requests
+         * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object
+         * @param {boolean} isRecurse Is this a recursive call?
          */
-        loadui(url2) {
-          if (!fetch) {
-            _a2.log(0, "Ui:loadui", "Current environment does not include `fetch`, skipping.")();
-            return;
-          }
-          if (!url2) {
-            _a2.log(0, "Ui:loadui", "url parameter must be provided, skipping.")();
-            return;
-          }
-          fetch(url2).then((response) => {
-            if (response.ok === false) {
-              throw new Error(`Could not load '${url2}'. Status ${response.status}, Error: ${response.statusText}`);
+        _uiAdd(ui, isRecurse) {
+          _a2.log("trace", "Ui:_uiManager:add", "Starting _uiAdd")();
+          ui.components.forEach((compToAdd, i2) => {
+            _a2.log("trace", `Ui:_uiAdd:components-forEach:${i2}`, "Component to add: ", compToAdd)();
+            let newEl;
+            switch (compToAdd.type) {
+              case "html": {
+                compToAdd.ns = "html";
+                newEl = this.document.createElement("div");
+                break;
+              }
+              case "svg": {
+                compToAdd.ns = "svg";
+                newEl = this.document.createElementNS("http://www.w3.org/2000/svg", "svg");
+                break;
+              }
+              default: {
+                compToAdd.ns = "dom";
+                newEl = this.document.createElement(compToAdd.type);
+                break;
+              }
             }
-            _a2.log("trace", "Ui:loadui:then1", `Loaded '${url2}'. Status ${response.status}, ${response.statusText}`)();
-            const contentType = response.headers.get("content-type");
-            if (!contentType || !contentType.includes("application/json")) {
-              throw new TypeError(`Fetch '${url2}' did not return JSON, ignoring`);
+            if (!compToAdd.slot && ui.payload)
+              compToAdd.slot = ui.payload;
+            this._uiComposeComponent(newEl, compToAdd);
+            let elParent;
+            if (compToAdd.parentEl) {
+              elParent = compToAdd.parentEl;
+            } else if (ui.parentEl) {
+              elParent = ui.parentEl;
+            } else if (compToAdd.parent) {
+              elParent = this.document.querySelector(compToAdd.parent);
+            } else if (ui.parent) {
+              elParent = this.document.querySelector(ui.parent);
             }
-            return response.json();
-          }).then((data) => {
-            if (data !== void 0) {
-              _a2.log("trace", "Ui:loadui:then2", "Parsed JSON successfully obtained")();
-              this._uiManager({ _ui: data });
-              return true;
+            if (!elParent) {
+              _a2.log("info", "Ui:_uiAdd", "No parent found, adding to body")();
+              elParent = this.document.querySelector("body");
+            }
+            if (compToAdd.position && compToAdd.position === "first") {
+              elParent.insertBefore(newEl, elParent.firstChild);
+            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {
+              elParent.insertBefore(newEl, elParent.children[compToAdd.position]);
+            } else {
+              elParent.appendChild(newEl);
+            }
+            if (compToAdd.components) {
+              this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns);
             }
-            return false;
-          }).catch((err) => {
-            _a2.log("warn", "Ui:loadui:catch", "Error. ", err)();
           });
         }
-        // --- end of loadui
-        // Namespaces - See https://stackoverflow.com/a/52572048/1309986
-        // const NAMESPACES = {
-        //     svg: 'http://www.w3.org/2000/svg',
-        //     html: 'http://www.w3.org/1999/xhtml',
-        //     xml: 'http://www.w3.org/XML/1998/namespace',
-        //     xlink: 'http://www.w3.org/1999/xlink',
-        //     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...
-        // }
+        // --- end of _uiAdd ---
         /** Enhance an HTML element that is being composed with ui data
          *  such as ID, attribs, event handlers, custom props, etc.
          * @param {*} el HTML Element to enhance
@@ -402,6 +206,8 @@
         _uiComposeComponent(el, comp) {
           if (comp.attributes) {
             Object.keys(comp.attributes).forEach((attrib) => {
+              if (attrib === "class" && Array.isArray(comp.attributes[attrib]))
+                comp.attributes[attrib].join(" ");
               if (attrib === "value")
                 el.value = comp.attributes[attrib];
               if (attrib.startsWith("xlink:"))
@@ -476,81 +282,111 @@
             }
           });
         }
-        // Vue dynamic inserts Don't really work ...
-        // _uiAddVue(ui, isRecurse) {
-        //     // must be Vue
-        //     // must have only 1 root element
-        //     const compToAdd = ui.components[0]
-        //     const newEl = this.document.createElement(compToAdd.type)
-        //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload
-        //     this._uiComposeComponent(newEl, compToAdd)
-        //     // If nested components, go again - but don't pass payload to sub-components
-        //     if (compToAdd.components) {
-        //         this._uiExtendEl(newEl, compToAdd.components)
-        //     }
-        //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()
-        //     this.set('magick', newEl.outerHTML)
-        //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)
-        //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)
-        // }
-        // TODO Add check if ID already exists
-        // TODO Allow single add without using components array
-        /** Handle incoming msg._ui add requests
+        // TODO Add more error handling and parameter validation
+        /** Handle incoming _ui load requests
+         * Can load JavaScript modules, JavaScript scripts and CSS.
          * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object
-         * @param {boolean} isRecurse Is this a recursive call?
          */
-        _uiAdd(ui, isRecurse) {
-          _a2.log("trace", "Ui:_uiManager:add", "Starting _uiAdd")();
-          ui.components.forEach((compToAdd, i2) => {
-            _a2.log("trace", `Ui:_uiAdd:components-forEach:${i2}`, "Component to add: ", compToAdd)();
-            let newEl;
-            switch (compToAdd.type) {
-              case "html": {
-                compToAdd.ns = "html";
-                newEl = this.document.createElement("div");
+        _uiLoad(ui) {
+          if (ui.components) {
+            if (!Array.isArray(ui.components))
+              ui.components = [ui.components];
+            ui.components.forEach(async (component) => {
+              await import(component);
+            });
+          }
+          if (ui.srcScripts) {
+            if (!Array.isArray(ui.srcScripts))
+              ui.srcScripts = [ui.srcScripts];
+            ui.srcScripts.forEach((script) => {
+              this.loadScriptSrc(script);
+            });
+          }
+          if (ui.txtScripts) {
+            if (!Array.isArray(ui.txtScripts))
+              ui.txtScripts = [ui.txtScripts];
+            this.loadScriptTxt(ui.txtScripts.join("\n"));
+          }
+          if (ui.srcStyles) {
+            if (!Array.isArray(ui.srcStyles))
+              ui.srcStyles = [ui.srcStyles];
+            ui.srcStyles.forEach((sheet) => {
+              this.loadStyleSrc(sheet);
+            });
+          }
+          if (ui.txtStyles) {
+            if (!Array.isArray(ui.txtStyles))
+              ui.txtStyles = [ui.txtStyles];
+            this.loadStyleTxt(ui.txtStyles.join("\n"));
+          }
+        }
+        // --- end of _uiLoad ---
+        /** Handle incoming _ui messages and loaded UI JSON files
+         * Called from start()
+         * @param {*} msg Standardised msg object containing a _ui property object
+         */
+        _uiManager(msg) {
+          if (!msg._ui)
+            return;
+          if (!Array.isArray(msg._ui))
+            msg._ui = [msg._ui];
+          msg._ui.forEach((ui, i2) => {
+            if (!ui.method) {
+              _a2.log("error", "Ui:_uiManager", `No method defined for msg._ui[${i2}]. Ignoring`)();
+              return;
+            }
+            ui.payload = msg.payload;
+            ui.topic = msg.topic;
+            switch (ui.method) {
+              case "add": {
+                this._uiAdd(ui, false);
                 break;
               }
-              case "svg": {
-                compToAdd.ns = "svg";
-                newEl = this.document.createElementNS("http://www.w3.org/2000/svg", "svg");
+              case "remove": {
+                this._uiRemove(ui, false);
+                break;
+              }
+              case "removeAll": {
+                this._uiRemove(ui, true);
+                break;
+              }
+              case "replace": {
+                this._uiReplace(ui);
+                break;
+              }
+              case "update": {
+                this._uiUpdate(ui);
+                break;
+              }
+              case "load": {
+                this._uiLoad(ui);
+                break;
+              }
+              case "reload": {
+                this._uiReload();
+                break;
+              }
+              case "notify": {
+                this.showDialog("notify", ui, msg);
+                break;
+              }
+              case "alert": {
+                this.showDialog("alert", ui, msg);
                 break;
               }
               default: {
-                compToAdd.ns = "dom";
-                newEl = this.document.createElement(compToAdd.type);
+                _a2.log("error", "Ui:_uiManager", `Invalid msg._ui[${i2}].method (${ui.method}). Ignoring`)();
                 break;
               }
             }
-            if (!compToAdd.slot && ui.payload)
-              compToAdd.slot = ui.payload;
-            this._uiComposeComponent(newEl, compToAdd);
-            let elParent;
-            if (compToAdd.parentEl) {
-              elParent = compToAdd.parentEl;
-            } else if (ui.parentEl) {
-              elParent = ui.parentEl;
-            } else if (compToAdd.parent) {
-              elParent = this.document.querySelector(compToAdd.parent);
-            } else if (ui.parent) {
-              elParent = this.document.querySelector(ui.parent);
-            }
-            if (!elParent) {
-              _a2.log("info", "Ui:_uiAdd", "No parent found, adding to body")();
-              elParent = this.document.querySelector("body");
-            }
-            if (compToAdd.position && compToAdd.position === "first") {
-              elParent.insertBefore(newEl, elParent.firstChild);
-            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {
-              elParent.insertBefore(newEl, elParent.children[compToAdd.position]);
-            } else {
-              elParent.appendChild(newEl);
-            }
-            if (compToAdd.components) {
-              this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns);
-            }
           });
         }
-        // --- end of _uiAdd ---
+        // --- end of _uiManager ---
+        /** Handle a reload request */
+        _uiReload() {
+          _a2.log("trace", "Ui:uiManager:reload", "reloading")();
+          location.reload();
+        }
         // TODO Add better tests for failures (see comments)
         /** Handle incoming _ui remove requests
          * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object
@@ -667,182 +503,463 @@
           });
         }
         // --- end of _uiUpdate ---
-        // TODO Add more error handling and parameter validation
-        /** Handle incoming _ui load requests
-         * Can load JavaScript modules, JavaScript scripts and CSS.
-         * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object
+        //#endregion ---- -------- ----
+        //#region ---- External Methods ----
+        /** Converts markdown text input to HTML if the Markdown-IT library is loaded
+         * Otherwise simply returns the text
+         * @param {string} mdText The input markdown string
+         * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text
          */
-        _uiLoad(ui) {
-          if (ui.components) {
-            if (!Array.isArray(ui.components))
-              ui.components = [ui.components];
-            ui.components.forEach(async (component) => {
-              await import(component);
-            });
-          }
-          if (ui.srcScripts) {
-            if (!Array.isArray(ui.srcScripts))
-              ui.srcScripts = [ui.srcScripts];
-            ui.srcScripts.forEach((script) => {
-              this.loadScriptSrc(script);
-            });
-          }
-          if (ui.txtScripts) {
-            if (!Array.isArray(ui.txtScripts))
-              ui.txtScripts = [ui.txtScripts];
-            this.loadScriptTxt(ui.txtScripts.join("\n"));
-          }
-          if (ui.srcStyles) {
-            if (!Array.isArray(ui.srcStyles))
-              ui.srcStyles = [ui.srcStyles];
-            ui.srcStyles.forEach((sheet) => {
-              this.loadStyleSrc(sheet);
-            });
+        convertMarkdown(mdText) {
+          if (!mdText)
+            return "";
+          if (!this.window["markdownit"])
+            return mdText;
+          const opts = {
+            // eslint-disable-line object-shorthand
+            html: true,
+            linkify: true,
+            _highlight: true,
+            langPrefix: "language-",
+            highlight(str, lang) {
+              if (lang && this.window["hljs"] && this.window["hljs"].getLanguage(lang)) {
+                try {
+                  return `<pre class="highlight" data-language="${lang.toUpperCase()}">
+                                <code class="language-${lang}">${this.window["hljs"].highlightAuto(str).value}</code></pre>`;
+                } finally {
+                }
+              }
+              return `<pre class="highlight"><code>${md.utils.escapeHtml(str)}</code></pre>`;
+            }
+          };
+          const md = this.window["markdownit"](opts);
+          return md.render(mdText);
+        }
+        /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API
+         * Wraps the included object in a div tag.
+         * PDF's, text or unknown MIME types are also wrapped in an iFrame.
+         * @param {string} url The URL of the source file to include
+         * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id
+         * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag
+         * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')
+         * @returns {Promise<any>} Status
+         */
+        async include(url2, uiOptions) {
+          if (!fetch) {
+            _a2.log(0, "Ui:include", "Current environment does not include `fetch`, skipping.")();
+            return "Current environment does not include `fetch`, skipping.";
           }
-          if (ui.txtStyles) {
-            if (!Array.isArray(ui.txtStyles))
-              ui.txtStyles = [ui.txtStyles];
-            this.loadStyleTxt(ui.txtStyles.join("\n"));
+          if (!url2) {
+            _a2.log(0, "Ui:include", "url parameter must be provided, skipping.")();
+            return "url parameter must be provided, skipping.";
+          }
+          if (!uiOptions || !uiOptions.id) {
+            _a2.log(0, "Ui:include", "uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.")();
+            return "uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.";
+          }
+          let response;
+          try {
+            response = await fetch(url2);
+          } catch (error) {
+            _a2.log(0, "Ui:include", `Fetch of file '${url2}' failed. `, error.message)();
+            return error.message;
+          }
+          if (!response.ok) {
+            _a2.log(0, "Ui:include", `Fetch of file '${url2}' failed. Status='${response.statusText}'`)();
+            return response.statusText;
+          }
+          const contentType = await response.headers.get("content-type");
+          let type = null;
+          if (contentType) {
+            if (contentType.includes("text/html")) {
+              type = "html";
+            } else if (contentType.includes("application/json")) {
+              type = "json";
+            } else if (contentType.includes("multipart/form-data")) {
+              type = "form";
+            } else if (contentType.includes("image/")) {
+              type = "image";
+            } else if (contentType.includes("video/")) {
+              type = "video";
+            } else if (contentType.includes("application/pdf")) {
+              type = "pdf";
+            } else if (contentType.includes("text/plain")) {
+              type = "text";
+            }
+          }
+          let slot = "";
+          let txtReturn = "Include successful";
+          let data;
+          switch (type) {
+            case "html": {
+              data = await response.text();
+              slot = data;
+              break;
+            }
+            case "json": {
+              data = await response.json();
+              slot = '<pre class="syntax-highlight">';
+              slot += this.syntaxHighlight(data);
+              slot += "</pre>";
+              break;
+            }
+            case "form": {
+              data = await response.formData();
+              slot = '<pre class="syntax-highlight">';
+              slot += this.syntaxHighlight(data);
+              slot += "</pre>";
+              break;
+            }
+            case "image": {
+              data = await response.blob();
+              slot = `<img src="${URL.createObjectURL(data)}">`;
+              if (this.window["DOMPurify"]) {
+                txtReturn = "Include successful. BUT DOMPurify loaded which may block its use.";
+                _a2.log("warn", "Ui:include:image", txtReturn)();
+              }
+              break;
+            }
+            case "video": {
+              data = await response.blob();
+              slot = `<video controls autoplay><source src="${URL.createObjectURL(data)}"></video>`;
+              if (this.window["DOMPurify"]) {
+                txtReturn = "Include successful. BUT DOMPurify loaded which may block its use.";
+                _a2.log("warn", "Ui:include:video", txtReturn)();
+              }
+              break;
+            }
+            case "pdf":
+            case "text":
+            default: {
+              data = await response.blob();
+              slot = `<iframe style="resize:both;width:inherit;height:inherit;" src="${URL.createObjectURL(data)}">`;
+              if (this.window["DOMPurify"]) {
+                txtReturn = "Include successful. BUT DOMPurify loaded which may block its use.";
+                _a2.log("warn", `Ui:include:${type}`, txtReturn)();
+              }
+              break;
+            }
           }
+          uiOptions.type = "div";
+          uiOptions.slot = slot;
+          if (!uiOptions.parent)
+            uiOptions.parent = "body";
+          if (!uiOptions.attributes)
+            uiOptions.attributes = { class: "included" };
+          this._uiReplace({
+            components: [
+              uiOptions
+            ]
+          });
+          _a2.log("trace", `Ui:include:${type}`, txtReturn)();
+          return txtReturn;
         }
-        // --- end of _uiLoad ---
-        /** Handle a reload request */
-        _uiReload() {
-          _a2.log("trace", "Ui:uiManager:reload", "reloading")();
-          location.reload();
+        // ---- End of include() ---- //
+        /** Attach a new remote script to the end of HEAD synchronously
+         * NOTE: It takes too long for most scripts to finish loading
+         *       so this is pretty useless to work with the dynamic UI features directly.
+         * @param {string} url The url to be used in the script src attribute
+         */
+        loadScriptSrc(url2) {
+          const newScript = this.document.createElement("script");
+          newScript.src = url2;
+          newScript.async = false;
+          this.document.head.appendChild(newScript);
         }
-        /** Handle incoming _ui messages and loaded UI JSON files
-         * Called from start()
-         * @param {*} msg Standardised msg object containing a _ui property object
+        /** Attach a new text script to the end of HEAD synchronously
+         * NOTE: It takes too long for most scripts to finish loading
+         *       so this is pretty useless to work with the dynamic UI features directly.
+         * @param {string} textFn The text to be loaded as a script
          */
-        _uiManager(msg) {
-          if (!msg._ui)
+        loadScriptTxt(textFn) {
+          const newScript = this.document.createElement("script");
+          newScript.async = false;
+          newScript.textContent = textFn;
+          this.document.head.appendChild(newScript);
+        }
+        /** Attach a new remote stylesheet link to the end of HEAD synchronously
+         * NOTE: It takes too long for most scripts to finish loading
+         *       so this is pretty useless to work with the dynamic UI features directly.
+         * @param {string} url The url to be used in the style link href attribute
+         */
+        loadStyleSrc(url2) {
+          const newStyle = this.document.createElement("link");
+          newStyle.href = url2;
+          newStyle.rel = "stylesheet";
+          newStyle.type = "text/css";
+          this.document.head.appendChild(newStyle);
+        }
+        /** Attach a new text stylesheet to the end of HEAD synchronously
+         * NOTE: It takes too long for most scripts to finish loading
+         *       so this is pretty useless to work with the dynamic UI features directly.
+         * @param {string} textFn The text to be loaded as a stylesheet
+         */
+        loadStyleTxt(textFn) {
+          const newStyle = this.document.createElement("style");
+          newStyle.textContent = textFn;
+          this.document.head.appendChild(newStyle);
+        }
+        /** Load a dynamic UI from a JSON web reponse
+         * @param {string} url URL that will return the ui JSON
+         */
+        loadui(url2) {
+          if (!fetch) {
+            _a2.log(0, "Ui:loadui", "Current environment does not include `fetch`, skipping.")();
             return;
-          if (!Array.isArray(msg._ui))
-            msg._ui = [msg._ui];
-          msg._ui.forEach((ui, i2) => {
-            if (!ui.method) {
-              _a2.log("error", "Ui:_uiManager", `No method defined for msg._ui[${i2}]. Ignoring`)();
-              return;
+          }
+          if (!url2) {
+            _a2.log(0, "Ui:loadui", "url parameter must be provided, skipping.")();
+            return;
+          }
+          fetch(url2).then((response) => {
+            if (response.ok === false) {
+              throw new Error(`Could not load '${url2}'. Status ${response.status}, Error: ${response.statusText}`);
             }
-            ui.payload = msg.payload;
-            ui.topic = msg.topic;
-            switch (ui.method) {
-              case "add": {
-                this._uiAdd(ui, false);
-                break;
-              }
-              case "remove": {
-                this._uiRemove(ui, false);
-                break;
-              }
-              case "removeAll": {
-                this._uiRemove(ui, true);
-                break;
-              }
-              case "replace": {
-                this._uiReplace(ui);
-                break;
-              }
-              case "update": {
-                this._uiUpdate(ui);
-                break;
-              }
-              case "load": {
-                this._uiLoad(ui);
-                break;
-              }
-              case "reload": {
-                this._uiReload();
-                break;
-              }
-              case "notify": {
-                this.showDialog("notify", ui, msg);
-                break;
-              }
-              case "alert": {
-                this.showDialog("alert", ui, msg);
-                break;
-              }
-              default: {
-                _a2.log("error", "Ui:_uiManager", `Invalid msg._ui[${i2}].method (${ui.method}). Ignoring`)();
-                break;
-              }
+            _a2.log("trace", "Ui:loadui:then1", `Loaded '${url2}'. Status ${response.status}, ${response.statusText}`)();
+            const contentType = response.headers.get("content-type");
+            if (!contentType || !contentType.includes("application/json")) {
+              throw new TypeError(`Fetch '${url2}' did not return JSON, ignoring`);
+            }
+            return response.json();
+          }).then((data) => {
+            if (data !== void 0) {
+              _a2.log("trace", "Ui:loadui:then2", "Parsed JSON successfully obtained")();
+              this._uiManager({ _ui: data });
+              return true;
             }
+            return false;
+          }).catch((err) => {
+            _a2.log("warn", "Ui:loadui:catch", "Error. ", err)();
           });
         }
-        // --- end of _uiManager ---
+        // --- end of loadui
         /** Get standard data from a DOM node.
          * @param {*} node DOM node to examine
          * @param {string} cssSelector Identify the DOM element to get data from
          * @returns {object} Standardised data object
          */
-        nodeGet(node, cssSelector) {
-          const thisOut = {
-            id: node.id === "" ? void 0 : node.id,
-            name: node.name,
-            children: node.childNodes.length,
-            type: node.nodeName,
-            attributes: void 0,
-            isUserInput: node.validity ? true : false,
-            // eslint-disable-line no-unneeded-ternary
-            userInput: !node.validity ? void 0 : {
-              // eslint-disable-line multiline-ternary
-              value: node.value,
-              validity: void 0,
-              willValidate: node.willValidate,
-              valueAsDate: node.valueAsDate,
-              valueAsNumber: node.valueAsNumber,
-              type: node.type
-            }
-          };
-          if (["UL", "OL"].includes(node.nodeName)) {
-            const listEntries = this.document.querySelectorAll(`${cssSelector} li`);
-            if (listEntries) {
-              thisOut.list = {
-                "entries": listEntries.length
-              };
-            }
-          }
-          if (node.nodeName === "DL") {
-            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`);
-            if (listEntries) {
-              thisOut.list = {
-                "entries": listEntries.length
-              };
-            }
+        nodeGet(node, cssSelector) {
+          const thisOut = {
+            id: node.id === "" ? void 0 : node.id,
+            name: node.name,
+            children: node.childNodes.length,
+            type: node.nodeName,
+            attributes: void 0,
+            isUserInput: node.validity ? true : false,
+            // eslint-disable-line no-unneeded-ternary
+            userInput: !node.validity ? void 0 : {
+              // eslint-disable-line multiline-ternary
+              value: node.value,
+              validity: void 0,
+              willValidate: node.willValidate,
+              valueAsDate: node.valueAsDate,
+              valueAsNumber: node.valueAsNumber,
+              type: node.type
+            }
+          };
+          if (["UL", "OL"].includes(node.nodeName)) {
+            const listEntries = this.document.querySelectorAll(`${cssSelector} li`);
+            if (listEntries) {
+              thisOut.list = {
+                "entries": listEntries.length
+              };
+            }
+          }
+          if (node.nodeName === "DL") {
+            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`);
+            if (listEntries) {
+              thisOut.list = {
+                "entries": listEntries.length
+              };
+            }
+          }
+          if (node.nodeName === "TABLE") {
+            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`);
+            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`);
+            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`);
+            if (bodyEntries || headEntries || cols) {
+              thisOut.table = {
+                "headRows": headEntries ? headEntries.length : 0,
+                "bodyRows": bodyEntries ? bodyEntries.length : 0,
+                "columns": cols ? cols.length : 0
+              };
+            }
+          }
+          if (node.nodeName !== "#text" && node.attributes && node.attributes.length > 0) {
+            thisOut.attributes = {};
+            for (const attrib of node.attributes) {
+              if (attrib.name !== "id") {
+                thisOut.attributes[attrib.name] = node.attributes[attrib.name].value;
+              }
+            }
+          }
+          if (node.nodeName === "#text") {
+            thisOut.text = node.textContent;
+          }
+          if (node.validity)
+            thisOut.userInput.validity = {};
+          for (const v in node.validity) {
+            thisOut.userInput.validity[v] = node.validity[v];
+          }
+          return thisOut;
+        }
+        // --- end of nodeGet --- //
+        /** Show a browser notification if possible. Returns a promise
+         * Config can be a simple string, a Node-RED msg (topic as title, payload as body)
+         * or a Notifications API options object + config.title string.
+         * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification
+         * @param {object|string} config Notification config object or simple message string
+         * @returns {Promise} Resolves on close or click event, returns the event.
+         */
+        async notification(config) {
+          if (typeof config === "string") {
+            config = { body: config };
+          }
+          if (typeof Notification === "undefined")
+            return Promise.reject(new Error("Notifications not available in this browser"));
+          let permit = Notification.permission;
+          if (permit === "denied") {
+            return Promise.reject(new Error("Notifications not permitted by user"));
+          } else if (permit === "granted") {
+            return this._showNotification(config);
+          } else {
+            permit = await Notification.requestPermission();
+            if (permit === "granted") {
+              return this._showNotification(config);
+            }
+            return Promise.reject(new Error("Notifications not permitted by user"));
+          }
+        }
+        // TODO Add multi-slot
+        /** Replace or add an HTML element's slot from text or an HTML string
+         * Will use DOMPurify if that library has been loaded to window.
+         * param {*} ui Single entry from the msg._ui property
+         * @param {Element} el Reference to the element that we want to update
+         * @param {*} component The component we are trying to add/replace
+         */
+        replaceSlot(el, component) {
+          if (!component.slot)
+            return;
+          if (!el)
+            return;
+          if (this.window["DOMPurify"])
+            component.slot = this.window["DOMPurify"].sanitize(component.slot);
+          el.innerHTML = component.slot;
+        }
+        /** Replace or add an HTML element's slot from a Markdown string
+         * Only does something if the markdownit library has been loaded to window.
+         * Will use DOMPurify if that library has been loaded to window.
+         * @param {Element} el Reference to the element that we want to update
+         * @param {*} component The component we are trying to add/replace
+         */
+        replaceSlotMarkdown(el, component) {
+          if (!el)
+            return;
+          if (!component.slotMarkdown)
+            return;
+          component.slotMarkdown = this.convertMarkdown(component.slotMarkdown);
+          component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown);
+          el.innerHTML = component.slotMarkdown;
+        }
+        /** Sanitise HTML to make it safe - if the DOMPurify library is loaded
+         * Otherwise just returns that HTML as-is.
+         * @param {string} html The input HTML string
+         * @returns {string} The sanitised HTML or the original if DOMPurify not loaded
+         */
+        sanitiseHTML(html) {
+          if (!this.window["DOMPurify"])
+            return html;
+          return this.window["DOMPurify"].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs });
+        }
+        /** Show a pop-over "toast" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen
+         * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,
+         *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,
+         *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/
+         * @param {"notify"|"alert"} type Dialog type
+         * @param {object} ui standardised ui data
+         * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.
+         * @returns {void}
+         */
+        showDialog(type, ui, msg) {
+          let content = "";
+          if (msg.payload && typeof msg.payload === "string")
+            content += msg.payload;
+          if (ui.content)
+            content += ui.content;
+          if (content === "") {
+            _a2.log(1, "Ui:showDialog", "Toast content is blank. Not shown.")();
+            return;
           }
-          if (node.nodeName === "TABLE") {
-            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`);
-            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`);
-            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`);
-            if (bodyEntries || headEntries || cols) {
-              thisOut.table = {
-                "headRows": headEntries ? headEntries.length : 0,
-                "bodyRows": bodyEntries ? bodyEntries.length : 0,
-                "columns": cols ? cols.length : 0
-              };
-            }
+          if (!ui.title && msg.topic)
+            ui.title = msg.topic;
+          if (ui.title)
+            content = `<p class="toast-head">${ui.title}</p><p>${content}</p>`;
+          if (ui.noAutohide)
+            ui.noAutoHide = ui.noAutohide;
+          if (ui.noAutoHide)
+            ui.autohide = !ui.noAutoHide;
+          if (ui.autoHideDelay) {
+            if (!ui.autohide)
+              ui.autohide = true;
+            ui.delay = ui.autoHideDelay;
+          } else
+            ui.autoHideDelay = 1e4;
+          if (!Object.prototype.hasOwnProperty.call(ui, "autohide"))
+            ui.autohide = true;
+          if (type === "alert") {
+            ui.modal = true;
+            ui.autohide = false;
+            content = `<svg viewBox="0 0 192.146 192.146" style="width:30;background-color:transparent;"><path d="M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z" /></svg> ${content}`;
           }
-          if (node.nodeName !== "#text" && node.attributes && node.attributes.length > 0) {
-            thisOut.attributes = {};
-            for (const attrib of node.attributes) {
-              if (attrib.name !== "id") {
-                thisOut.attributes[attrib.name] = node.attributes[attrib.name].value;
-              }
-            }
+          let toaster = this.document.getElementById("toaster");
+          if (toaster === null) {
+            toaster = this.document.createElement("div");
+            toaster.id = "toaster";
+            toaster.title = "Click to clear all notifcations";
+            toaster.setAttribute("class", "toaster");
+            toaster.setAttribute("role", "dialog");
+            toaster.setAttribute("arial-label", "Toast message");
+            toaster.onclick = function() {
+              toaster.remove();
+            };
+            this.document.body.insertAdjacentElement("afterbegin", toaster);
           }
-          if (node.nodeName === "#text") {
-            thisOut.text = node.textContent;
+          const toast = this.document.createElement("div");
+          toast.title = "Click to clear this notifcation";
+          toast.setAttribute("class", `toast ${ui.variant ? ui.variant : ""} ${type}`);
+          toast.innerHTML = content;
+          toast.setAttribute("role", "alertdialog");
+          if (ui.modal)
+            toast.setAttribute("aria-modal", ui.modal);
+          toast.onclick = function(evt) {
+            evt.stopPropagation();
+            toast.remove();
+            if (toaster.childElementCount < 1)
+              toaster.remove();
+          };
+          if (type === "alert") {
           }
-          if (node.validity)
-            thisOut.userInput.validity = {};
-          for (const v in node.validity) {
-            thisOut.userInput.validity[v] = node.validity[v];
+          toaster.insertAdjacentElement(ui.appendToast === true ? "beforeend" : "afterbegin", toast);
+          if (ui.autohide === true) {
+            setInterval(() => {
+              toast.remove();
+              if (toaster.childElementCount < 1)
+                toaster.remove();
+            }, ui.autoHideDelay);
           }
-          return thisOut;
         }
-        // --- end of nodeGet --- //
+        // --- End of showDialog ---
+        /** Directly manage UI via JSON
+         * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions
+         */
+        ui(json) {
+          let msg = {};
+          if (json._ui)
+            msg = json;
+          else
+            msg._ui = json;
+          this._uiManager(msg);
+        }
         /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.
          * @param {string} cssSelector Identify the DOM element to get data from
          * @param {string} [propName] Optional. Specific name of property to get from the element
@@ -894,126 +1011,7 @@
           return out;
         }
         // --- end of uiGet --- //
-        /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API
-         * Wraps the included object in a div tag.
-         * PDF's, text or unknown MIME types are also wrapped in an iFrame.
-         * @param {string} url The URL of the source file to include
-         * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id
-         * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag
-         * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')
-         * @returns {Promise<any>} Status
-         */
-        async include(url2, uiOptions) {
-          if (!fetch) {
-            _a2.log(0, "Ui:include", "Current environment does not include `fetch`, skipping.")();
-            return "Current environment does not include `fetch`, skipping.";
-          }
-          if (!url2) {
-            _a2.log(0, "Ui:include", "url parameter must be provided, skipping.")();
-            return "url parameter must be provided, skipping.";
-          }
-          if (!uiOptions || !uiOptions.id) {
-            _a2.log(0, "Ui:include", "uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.")();
-            return "uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.";
-          }
-          let response;
-          try {
-            response = await fetch(url2);
-          } catch (error) {
-            _a2.log(0, "Ui:include", `Fetch of file '${url2}' failed. `, error.message)();
-            return error.message;
-          }
-          if (!response.ok) {
-            _a2.log(0, "Ui:include", `Fetch of file '${url2}' failed. Status='${response.statusText}'`)();
-            return response.statusText;
-          }
-          const contentType = await response.headers.get("content-type");
-          let type = null;
-          if (contentType) {
-            if (contentType.includes("text/html")) {
-              type = "html";
-            } else if (contentType.includes("application/json")) {
-              type = "json";
-            } else if (contentType.includes("multipart/form-data")) {
-              type = "form";
-            } else if (contentType.includes("image/")) {
-              type = "image";
-            } else if (contentType.includes("video/")) {
-              type = "video";
-            } else if (contentType.includes("application/pdf")) {
-              type = "pdf";
-            } else if (contentType.includes("text/plain")) {
-              type = "text";
-            }
-          }
-          let slot = "";
-          let txtReturn = "Include successful";
-          let data;
-          switch (type) {
-            case "html": {
-              data = await response.text();
-              slot = data;
-              break;
-            }
-            case "json": {
-              data = await response.json();
-              slot = '<pre class="syntax-highlight">';
-              slot += this.syntaxHighlight(data);
-              slot += "</pre>";
-              break;
-            }
-            case "form": {
-              data = await response.formData();
-              slot = '<pre class="syntax-highlight">';
-              slot += this.syntaxHighlight(data);
-              slot += "</pre>";
-              break;
-            }
-            case "image": {
-              data = await response.blob();
-              slot = `<img src="${URL.createObjectURL(data)}">`;
-              if (this.window["DOMPurify"]) {
-                txtReturn = "Include successful. BUT DOMPurify loaded which may block its use.";
-                _a2.log("warn", "Ui:include:image", txtReturn)();
-              }
-              break;
-            }
-            case "video": {
-              data = await response.blob();
-              slot = `<video controls autoplay><source src="${URL.createObjectURL(data)}"></video>`;
-              if (this.window["DOMPurify"]) {
-                txtReturn = "Include successful. BUT DOMPurify loaded which may block its use.";
-                _a2.log("warn", "Ui:include:video", txtReturn)();
-              }
-              break;
-            }
-            case "pdf":
-            case "text":
-            default: {
-              data = await response.blob();
-              slot = `<iframe style="resize:both;width:inherit;height:inherit;" src="${URL.createObjectURL(data)}">`;
-              if (this.window["DOMPurify"]) {
-                txtReturn = "Include successful. BUT DOMPurify loaded which may block its use.";
-                _a2.log("warn", `Ui:include:${type}`, txtReturn)();
-              }
-              break;
-            }
-          }
-          uiOptions.type = "div";
-          uiOptions.slot = slot;
-          if (!uiOptions.parent)
-            uiOptions.parent = "body";
-          if (!uiOptions.attributes)
-            uiOptions.attributes = { class: "included" };
-          this._uiReplace({
-            components: [
-              uiOptions
-            ]
-          });
-          _a2.log("trace", `Ui:include:${type}`, txtReturn)();
-          return txtReturn;
-        }
-        // ---- End of include() ---- //
+        //#endregion ---- -------- ----
       }, /** Log function - passed in constructor or will be a dummy function
        * @type {function}
        */
diff --git a/front-end/uibuilder.iife.min.js b/front-end/uibuilder.iife.min.js
index 2e8ffa5f..be744982 100644
--- a/front-end/uibuilder.iife.min.js
+++ b/front-end/uibuilder.iife.min.js
@@ -1,2 +1,2 @@
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").concat(r.message))()}}),t.properties&&Object.keys(t.properties).forEach(i=>{e[i]=t.properties[i]}),t.slot&&this.replaceSlot(e,t),t.slotMarkdown&&this.replaceSlotMarkdown(e,t)}uiEnhanceElement(e,t){this._uiComposeComponent(e,t)}_uiExtendEl(e,t,i=""){t.forEach((r,n)=>{d.log("trace","Ui:_uiExtendEl:components-forEach:".concat(n),r)();let o;r.ns=i,r.ns==="html"?(o=e,e.innerHTML=r.slot):r.ns==="svg"?(o=this.document.createElementNS("http://www.w3.org/2000/svg",r.type),this._uiComposeComponent(o,r),e.appendChild(o)):(o=this.document.createElement(r.type==="html"?"div":r.type),this._uiComposeComponent(o,r),e.appendChild(o)),r.components&&this._uiExtendEl(o,r.components,r.ns)})}_uiAdd(e,t){d.log("trace","Ui:_uiManager:add","Starting _uiAdd")(),e.components.forEach((i,r)=>{d.log("trace","Ui:_uiAdd:components-forEach:".concat(r),"Component to add: ",i)();let n;switch(i.type){case"html":{i.ns="html",n=this.document.createElement("div");break}case"svg":{i.ns="svg",n=this.document.createElementNS("http://www.w3.org/2000/svg","svg");break}default:{i.ns="dom",n=this.document.createElement(i.type);break}}!i.slot&&e.payload&&(i.slot=e.payload),this._uiComposeComponent(n,i);let o;i.parentEl?o=i.parentEl:e.parentEl?o=e.parentEl:i.parent?o=this.document.querySelector(i.parent):e.parent&&(o=this.document.querySelector(e.parent)),o||(d.log("info","Ui:_uiAdd","No parent found, adding to body")(),o=this.document.querySelector("body")),i.position&&i.position==="first"?o.insertBefore(n,o.firstChild):i.position&&Number.isInteger(Number(i.position))?o.insertBefore(n,o.children[i.position]):o.appendChild(n),i.components&&this._uiExtendEl(n,i.components,i.ns)})}_uiRemove(e,t=!1){e.components.forEach(i=>{let r;t!==!0?r=[this.document.querySelector(i)]:r=this.document.querySelectorAll(i),r.forEach(n=>{try{n.remove()}catch(o){d.log("trace","Ui:_uiRemove","Could not remove. 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BUT DOMPurify loaded which may block its use.",d.log("warn","Ui:include:".concat(n),c)());break}}return t.type="div",t.slot=o,t.parent||(t.parent="body"),t.attributes||(t.attributes={class:"included"}),this._uiReplace({components:[t]}),d.log("trace","Ui:include:".concat(n),c)(),c}},h(d,"log"),d);Pe.exports=Tt});var vt=Ee(qe());var F=class F extends HTMLElement{constructor(){super();h(this,"variable");h(this,"value");h(this,"undefined",!1);h(this,"report",!1);h(this,"type","plain");h(this,"types",["plain","html","markdown","object"]);h(this,"$");this.shadow=this.attachShadow({mode:"open",delegatesFocus:!0}),this.$=this.shadowRoot.querySelector.bind(this.shadowRoot),this.css=document.createElement("link"),this.css.setAttribute("type","text/css"),this.css.setAttribute("rel","stylesheet"),this.css.setAttribute("href","../uibuilder/uib-brand.min.css"),this.dispatchEvent(new Event("uib-var:construction",{bubbles:!0,composed:!0}))}static get observedAttributes(){return 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e=this.transports[0];this.readyState="opening";try{e=this.createTransport(e)}catch{this.transports.shift(),this.open();return}e.open(),this.setTransport(e)}setTransport(e){this.transport&&this.transport.removeAllListeners(),this.transport=e,e.on("drain",this.onDrain.bind(this)).on("packet",this.onPacket.bind(this)).on("error",this.onError.bind(this)).on("close",t=>this.onClose("transport close",t))}probe(e){let t=this.createTransport(e),i=!1;s.priorWebsocketSuccess=!1;let r=()=>{i||(t.send([{type:"ping",data:"probe"}]),t.once("packet",x=>{if(!i)if(x.type==="pong"&&x.data==="probe"){if(this.upgrading=!0,this.emitReserved("upgrading",t),!t)return;s.priorWebsocketSuccess=t.name==="websocket",this.transport.pause(()=>{i||this.readyState!=="closed"&&(b(),this.setTransport(t),t.send([{type:"upgrade"}]),this.emitReserved("upgrade",t),t=null,this.upgrading=!1,this.flush())})}else{let k=new Error("probe error");k.transport=t.name,this.emitReserved("upgradeError",k)}}))};function n(){i||(i=!0,b(),t.close(),t=null)}let o=x=>{let k=new Error("probe error: "+x);k.transport=t.name,n(),this.emitReserved("upgradeError",k)};function c(){o("transport closed")}function l(){o("socket closed")}function f(x){t&&x.name!==t.name&&n()}let b=()=>{t.removeListener("open",r),t.removeListener("error",o),t.removeListener("close",c),this.off("close",l),this.off("upgrading",f)};t.once("open",r),t.once("error",o),t.once("close",c),this.once("close",l),this.once("upgrading",f),this.upgrades.indexOf("webtransport")!==-1&&e!=="webtransport"?this.setTimeoutFn(()=>{i||t.open()},200):t.open()}onOpen(){if(this.readyState="open",s.priorWebsocketSuccess=this.transport.name==="websocket",this.emitReserved("open"),this.flush(),this.readyState==="open"&&this.opts.upgrade){let e=0,t=this.upgrades.length;for(;e<t;e++)this.probe(this.upgrades[e])}}onPacket(e){if(this.readyState==="opening"||this.readyState==="open"||this.readyState==="closing")switch(this.emitReserved("packet",e),this.emitReserved("heartbeat"),this.resetPingTimeout(),e.type){case"open":this.onHandshake(JSON.parse(e.data));break;case"ping":this.sendPacket("pong"),this.emitReserved("ping"),this.emitReserved("pong");break;case"error":let t=new Error("server error");t.code=e.data,this.onError(t);break;case"message":this.emitReserved("data",e.data),this.emitReserved("message",e.data);break}}onHandshake(e){this.emitReserved("handshake",e),this.id=e.sid,this.transport.query.sid=e.sid,this.upgrades=this.filterUpgrades(e.upgrades),this.pingInterval=e.pingInterval,this.pingTimeout=e.pingTimeout,this.maxPayload=e.maxPayload,this.onOpen(),this.readyState!=="closed"&&this.resetPingTimeout()}resetPingTimeout(){this.clearTimeoutFn(this.pingTimeoutTimer),this.pingTimeoutTimer=this.setTimeoutFn(()=>{this.onClose("ping timeout")},this.pingInterval+this.pingTimeout),this.opts.autoUnref&&this.pingTimeoutTimer.unref()}onDrain(){this.writeBuffer.splice(0,this.prevBufferLen),this.prevBufferLen=0,this.writeBuffer.length===0?this.emitReserved("drain"):this.flush()}flush(){if(this.readyState!=="closed"&&this.transport.writable&&!this.upgrading&&this.writeBuffer.length){let e=this.getWritablePackets();this.transport.send(e),this.prevBufferLen=e.length,this.emitReserved("flush")}}getWritablePackets(){if(!(this.maxPayload&&this.transport.name==="polling"&&this.writeBuffer.length>1))return this.writeBuffer;let t=1;for(let i=0;i<this.writeBuffer.length;i++){let r=this.writeBuffer[i].data;if(r&&(t+=tt(r)),i>0&&t>this.maxPayload)return this.writeBuffer.slice(0,i);t+=2}return this.writeBuffer}write(e,t,i){return this.sendPacket("message",e,t,i),this}send(e,t,i){return this.sendPacket("message",e,t,i),this}sendPacket(e,t,i,r){if(typeof t=="function"&&(r=t,t=void 0),typeof i=="function"&&(r=i,i=null),this.readyState==="closing"||this.readyState==="closed")return;i=i||{},i.compress=i.compress!==!1;let n={type:e,data:t,options:i};this.emitReserved("packetCreate",n),this.writeBuffer.push(n),r&&this.once("flush",r),this.flush()}close(){let e=()=>{this.onClose("forced close"),this.transport.close()},t=()=>{this.off("upgrade",t),this.off("upgradeError",t),e()},i=()=>{this.once("upgrade",t),this.once("upgradeError",t)};return(this.readyState==="opening"||this.readyState==="open")&&(this.readyState="closing",this.writeBuffer.length?this.once("drain",()=>{this.upgrading?i():e()}):this.upgrading?i():e()),this}onError(e){s.priorWebsocketSuccess=!1,this.emitReserved("error",e),this.onClose("transport error",e)}onClose(e,t){(this.readyState==="opening"||this.readyState==="open"||this.readyState==="closing")&&(this.clearTimeoutFn(this.pingTimeoutTimer),this.transport.removeAllListeners("close"),this.transport.close(),this.transport.removeAllListeners(),typeof removeEventListener=="function"&&(removeEventListener("beforeunload",this.beforeunloadEventListener,!1),removeEventListener("offline",this.offlineEventListener,!1)),this.readyState="closed",this.id=null,this.emitReserved("close",e,t),this.writeBuffer=[],this.prevBufferLen=0)}filterUpgrades(e){let t=[],i=0,r=e.length;for(;i<r;i++)~this.transports.indexOf(e[i])&&t.push(e[i]);return t}};B.protocol=xe;var fs=B.protocol;function ft(s,e="",t){let i=s;t=t||typeof location<"u"&&location,s==null&&(s=t.protocol+"//"+t.host),typeof s=="string"&&(s.charAt(0)==="/"&&(s.charAt(1)==="/"?s=t.protocol+s:s=t.host+s),/^(https?|wss?):\/\//.test(s)||(typeof t<"u"?s=t.protocol+"//"+s:s="https://"+s),i=j(s)),i.port||(/^(http|ws)$/.test(i.protocol)?i.port="80":/^(http|ws)s$/.test(i.protocol)&&(i.port="443")),i.path=i.path||"/";let n=i.host.indexOf(":")!==-1?"["+i.host+"]":i.host;return i.id=i.protocol+"://"+n+":"+i.port+e,i.href=i.protocol+"://"+n+(t&&t.port===i.port?"":":"+i.port),i}var Ie={};Rt(Ie,{Decoder:()=>Le,Encoder:()=>$e,PacketType:()=>p,protocol:()=>bt});var Kt=typeof ArrayBuffer=="function",Jt=s=>typeof ArrayBuffer.isView=="function"?ArrayBuffer.isView(s):s.buffer instanceof ArrayBuffer,pt=Object.prototype.toString,zt=typeof Blob=="function"||typeof Blob<"u"&&pt.call(Blob)==="[object BlobConstructor]",Yt=typeof File=="function"||typeof File<"u"&&pt.call(File)==="[object FileConstructor]";function re(s){return Kt&&(s instanceof ArrayBuffer||Jt(s))||zt&&s instanceof Blob||Yt&&s instanceof File}function se(s,e){if(!s||typeof s!="object")return!1;if(Array.isArray(s)){for(let t=0,i=s.length;t<i;t++)if(se(s[t]))return!0;return!1}if(re(s))return!0;if(s.toJSON&&typeof s.toJSON=="function"&&arguments.length===1)return se(s.toJSON(),!0);for(let t in s)if(Object.prototype.hasOwnProperty.call(s,t)&&se(s[t]))return!0;return!1}function mt(s){let e=[],t=s.data,i=s;return i.data=Ae(t,e),i.attachments=e.length,{packet:i,buffers:e}}function Ae(s,e){if(!s)return s;if(re(s)){let t={_placeholder:!0,num:e.length};return e.push(s),t}else if(Array.isArray(s)){let t=new Array(s.length);for(let i=0;i<s.length;i++)t[i]=Ae(s[i],e);return t}else if(typeof s=="object"&&!(s instanceof Date)){let t={};for(let i in s)Object.prototype.hasOwnProperty.call(s,i)&&(t[i]=Ae(s[i],e));return t}return s}function gt(s,e){return s.data=Te(s.data,e),delete s.attachments,s}function Te(s,e){if(!s)return s;if(s&&s._placeholder===!0){if(typeof s.num=="number"&&s.num>=0&&s.num<e.length)return e[s.num];throw new Error("illegal attachments")}else if(Array.isArray(s))for(let t=0;t<s.length;t++)s[t]=Te(s[t],e);else if(typeof s=="object")for(let t in s)Object.prototype.hasOwnProperty.call(s,t)&&(s[t]=Te(s[t],e));return s}var Gt=["connect","connect_error","disconnect","disconnecting","newListener","removeListener"],bt=5,p;(function(s){s[s.CONNECT=0]="CONNECT",s[s.DISCONNECT=1]="DISCONNECT",s[s.EVENT=2]="EVENT",s[s.ACK=3]="ACK",s[s.CONNECT_ERROR=4]="CONNECT_ERROR",s[s.BINARY_EVENT=5]="BINARY_EVENT",s[s.BINARY_ACK=6]="BINARY_ACK"})(p||(p={}));var $e=class{constructor(e){this.replacer=e}encode(e){return(e.type===p.EVENT||e.type===p.ACK)&&se(e)?this.encodeAsBinary({type:e.type===p.EVENT?p.BINARY_EVENT:p.BINARY_ACK,nsp:e.nsp,data:e.data,id:e.id}):[this.encodeAsString(e)]}encodeAsString(e){let t=""+e.type;return(e.type===p.BINARY_EVENT||e.type===p.BINARY_ACK)&&(t+=e.attachments+"-"),e.nsp&&e.nsp!=="/"&&(t+=e.nsp+","),e.id!=null&&(t+=e.id),e.data!=null&&(t+=JSON.stringify(e.data,this.replacer)),t}encodeAsBinary(e){let t=mt(e),i=this.encodeAsString(t.packet),r=t.buffers;return r.unshift(i),r}};function yt(s){return Object.prototype.toString.call(s)==="[object Object]"}var Le=class s extends y{constructor(e){super(),this.reviver=e}add(e){let t;if(typeof e=="string"){if(this.reconstructor)throw new Error("got plaintext data when reconstructing a packet");t=this.decodeString(e);let i=t.type===p.BINARY_EVENT;i||t.type===p.BINARY_ACK?(t.type=i?p.EVENT:p.ACK,this.reconstructor=new Ue(t),t.attachments===0&&super.emitReserved("decoded",t)):super.emitReserved("decoded",t)}else if(re(e)||e.base64)if(this.reconstructor)t=this.reconstructor.takeBinaryData(e),t&&(this.reconstructor=null,super.emitReserved("decoded",t));else throw new Error("got binary data when not reconstructing a packet");else throw new Error("Unknown type: "+e)}decodeString(e){let t=0,i={type:Number(e.charAt(0))};if(p[i.type]===void 0)throw new Error("unknown packet type "+i.type);if(i.type===p.BINARY_EVENT||i.type===p.BINARY_ACK){let n=t+1;for(;e.charAt(++t)!=="-"&&t!=e.length;);let o=e.substring(n,t);if(o!=Number(o)||e.charAt(t)!=="-")throw new Error("Illegal attachments");i.attachments=Number(o)}if(e.charAt(t+1)==="/"){let n=t+1;for(;++t&&!(e.charAt(t)===","||t===e.length););i.nsp=e.substring(n,t)}else i.nsp="/";let r=e.charAt(t+1);if(r!==""&&Number(r)==r){let n=t+1;for(;++t;){let o=e.charAt(t);if(o==null||Number(o)!=o){--t;break}if(t===e.length)break}i.id=Number(e.substring(n,t+1))}if(e.charAt(++t)){let n=this.tryParse(e.substr(t));if(s.isPayloadValid(i.type,n))i.data=n;else throw new Error("invalid payload")}return i}tryParse(e){try{return JSON.parse(e,this.reviver)}catch{return!1}}static isPayloadValid(e,t){switch(e){case p.CONNECT:return yt(t);case p.DISCONNECT:return t===void 0;case p.CONNECT_ERROR:return typeof t=="string"||yt(t);case p.EVENT:case p.BINARY_EVENT:return Array.isArray(t)&&(typeof t[0]=="number"||typeof t[0]=="string"&&Gt.indexOf(t[0])===-1);case p.ACK:case p.BINARY_ACK:return Array.isArray(t)}}destroy(){this.reconstructor&&(this.reconstructor.finishedReconstruction(),this.reconstructor=null)}},Ue=class{constructor(e){this.packet=e,this.buffers=[],this.reconPack=e}takeBinaryData(e){if(this.buffers.push(e),this.buffers.length===this.reconPack.attachments){let t=gt(this.reconPack,this.buffers);return this.finishedReconstruction(),t}return null}finishedReconstruction(){this.reconPack=null,this.buffers=[]}};function S(s,e,t){return s.on(e,t),function(){s.off(e,t)}}var Xt=Object.freeze({connect:1,connect_error:1,disconnect:1,disconnecting:1,newListener:1,removeListener:1}),W=class extends y{constructor(e,t,i){super(),this.connected=!1,this.recovered=!1,this.receiveBuffer=[],this.sendBuffer=[],this._queue=[],this._queueSeq=0,this.ids=0,this.acks={},this.flags={},this.io=e,this.nsp=t,i&&i.auth&&(this.auth=i.auth),this._opts=Object.assign({},i),this.io._autoConnect&&this.open()}get disconnected(){return!this.connected}subEvents(){if(this.subs)return;let e=this.io;this.subs=[S(e,"open",this.onopen.bind(this)),S(e,"packet",this.onpacket.bind(this)),S(e,"error",this.onerror.bind(this)),S(e,"close",this.onclose.bind(this))]}get active(){return!!this.subs}connect(){return this.connected?this:(this.subEvents(),this.io._reconnecting||this.io.open(),this.io._readyState==="open"&&this.onopen(),this)}open(){return this.connect()}send(...e){return e.unshift("message"),this.emit.apply(this,e),this}emit(e,...t){if(Xt.hasOwnProperty(e))throw new Error('"'+e.toString()+'" is a reserved event name');if(t.unshift(e),this._opts.retries&&!this.flags.fromQueue&&!this.flags.volatile)return this._addToQueue(t),this;let i={type:p.EVENT,data:t};if(i.options={},i.options.compress=this.flags.compress!==!1,typeof t[t.length-1]=="function"){let o=this.ids++,c=t.pop();this._registerAckCallback(o,c),i.id=o}let r=this.io.engine&&this.io.engine.transport&&this.io.engine.transport.writable;return this.flags.volatile&&(!r||!this.connected)||(this.connected?(this.notifyOutgoingListeners(i),this.packet(i)):this.sendBuffer.push(i)),this.flags={},this}_registerAckCallback(e,t){var i;let r=(i=this.flags.timeout)!==null&&i!==void 0?i:this._opts.ackTimeout;if(r===void 0){this.acks[e]=t;return}let n=this.io.setTimeoutFn(()=>{delete this.acks[e];for(let o=0;o<this.sendBuffer.length;o++)this.sendBuffer[o].id===e&&this.sendBuffer.splice(o,1);t.call(this,new Error("operation has timed out"))},r);this.acks[e]=(...o)=>{this.io.clearTimeoutFn(n),t.apply(this,[null,...o])}}emitWithAck(e,...t){let i=this.flags.timeout!==void 0||this._opts.ackTimeout!==void 0;return new Promise((r,n)=>{t.push((o,c)=>i?o?n(o):r(c):r(o)),this.emit(e,...t)})}_addToQueue(e){let t;typeof e[e.length-1]=="function"&&(t=e.pop());let i={id:this._queueSeq++,tryCount:0,pending:!1,args:e,flags:Object.assign({fromQueue:!0},this.flags)};e.push((r,...n)=>i!==this._queue[0]?void 0:(r!==null?i.tryCount>this._opts.retries&&(this._queue.shift(),t&&t(r)):(this._queue.shift(),t&&t(null,...n)),i.pending=!1,this._drainQueue())),this._queue.push(i),this._drainQueue()}_drainQueue(e=!1){if(!this.connected||this._queue.length===0)return;let t=this._queue[0];t.pending&&!e||(t.pending=!0,t.tryCount++,this.flags=t.flags,this.emit.apply(this,t.args))}packet(e){e.nsp=this.nsp,this.io._packet(e)}onopen(){typeof this.auth=="function"?this.auth(e=>{this._sendConnectPacket(e)}):this._sendConnectPacket(this.auth)}_sendConnectPacket(e){this.packet({type:p.CONNECT,data:this._pid?Object.assign({pid:this._pid,offset:this._lastOffset},e):e})}onerror(e){this.connected||this.emitReserved("connect_error",e)}onclose(e,t){this.connected=!1,delete this.id,this.emitReserved("disconnect",e,t)}onpacket(e){if(e.nsp===this.nsp)switch(e.type){case p.CONNECT:e.data&&e.data.sid?this.onconnect(e.data.sid,e.data.pid):this.emitReserved("connect_error",new Error("It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)"));break;case p.EVENT:case p.BINARY_EVENT:this.onevent(e);break;case p.ACK:case p.BINARY_ACK:this.onack(e);break;case p.DISCONNECT:this.ondisconnect();break;case p.CONNECT_ERROR:this.destroy();let i=new Error(e.data.message);i.data=e.data.data,this.emitReserved("connect_error",i);break}}onevent(e){let t=e.data||[];e.id!=null&&t.push(this.ack(e.id)),this.connected?this.emitEvent(t):this.receiveBuffer.push(Object.freeze(t))}emitEvent(e){if(this._anyListeners&&this._anyListeners.length){let t=this._anyListeners.slice();for(let i of t)i.apply(this,e)}super.emit.apply(this,e),this._pid&&e.length&&typeof e[e.length-1]=="string"&&(this._lastOffset=e[e.length-1])}ack(e){let t=this,i=!1;return function(...r){i||(i=!0,t.packet({type:p.ACK,id:e,data:r}))}}onack(e){let t=this.acks[e.id];typeof t=="function"&&(t.apply(this,e.data),delete this.acks[e.id])}onconnect(e,t){this.id=e,this.recovered=t&&this._pid===t,this._pid=t,this.connected=!0,this.emitBuffered(),this.emitReserved("connect"),this._drainQueue(!0)}emitBuffered(){this.receiveBuffer.forEach(e=>this.emitEvent(e)),this.receiveBuffer=[],this.sendBuffer.forEach(e=>{this.notifyOutgoingListeners(e),this.packet(e)}),this.sendBuffer=[]}ondisconnect(){this.destroy(),this.onclose("io server disconnect")}destroy(){this.subs&&(this.subs.forEach(e=>e()),this.subs=void 0),this.io._destroy(this)}disconnect(){return this.connected&&this.packet({type:p.DISCONNECT}),this.destroy(),this.connected&&this.onclose("io client disconnect"),this}close(){return this.disconnect()}compress(e){return this.flags.compress=e,this}get volatile(){return this.flags.volatile=!0,this}timeout(e){return this.flags.timeout=e,this}onAny(e){return this._anyListeners=this._anyListeners||[],this._anyListeners.push(e),this}prependAny(e){return this._anyListeners=this._anyListeners||[],this._anyListeners.unshift(e),this}offAny(e){if(!this._anyListeners)return this;if(e){let t=this._anyListeners;for(let i=0;i<t.length;i++)if(e===t[i])return t.splice(i,1),this}else this._anyListeners=[];return this}listenersAny(){return this._anyListeners||[]}onAnyOutgoing(e){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.push(e),this}prependAnyOutgoing(e){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.unshift(e),this}offAnyOutgoing(e){if(!this._anyOutgoingListeners)return this;if(e){let t=this._anyOutgoingListeners;for(let i=0;i<t.length;i++)if(e===t[i])return t.splice(i,1),this}else this._anyOutgoingListeners=[];return this}listenersAnyOutgoing(){return this._anyOutgoingListeners||[]}notifyOutgoingListeners(e){if(this._anyOutgoingListeners&&this._anyOutgoingListeners.length){let t=this._anyOutgoingListeners.slice();for(let i of t)i.apply(this,e.data)}}};function P(s){s=s||{},this.ms=s.min||100,this.max=s.max||1e4,this.factor=s.factor||2,this.jitter=s.jitter>0&&s.jitter<=1?s.jitter:0,this.attempts=0}P.prototype.duration=function(){var s=this.ms*Math.pow(this.factor,this.attempts++);if(this.jitter){var e=Math.random(),t=Math.floor(e*this.jitter*s);s=Math.floor(e*10)&1?s+t:s-t}return Math.min(s,this.max)|0};P.prototype.reset=function(){this.attempts=0};P.prototype.setMin=function(s){this.ms=s};P.prototype.setMax=function(s){this.max=s};P.prototype.setJitter=function(s){this.jitter=s};var K=class extends y{constructor(e,t){var i;super(),this.nsps={},this.subs=[],e&&typeof e=="object"&&(t=e,e=void 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e=0,t=this.upgrades.length;for(;e<t;e++)this.probe(this.upgrades[e])}}onPacket(e){if(this.readyState==="opening"||this.readyState==="open"||this.readyState==="closing")switch(this.emitReserved("packet",e),this.emitReserved("heartbeat"),this.resetPingTimeout(),e.type){case"open":this.onHandshake(JSON.parse(e.data));break;case"ping":this.sendPacket("pong"),this.emitReserved("ping"),this.emitReserved("pong");break;case"error":let t=new Error("server error");t.code=e.data,this.onError(t);break;case"message":this.emitReserved("data",e.data),this.emitReserved("message",e.data);break}}onHandshake(e){this.emitReserved("handshake",e),this.id=e.sid,this.transport.query.sid=e.sid,this.upgrades=this.filterUpgrades(e.upgrades),this.pingInterval=e.pingInterval,this.pingTimeout=e.pingTimeout,this.maxPayload=e.maxPayload,this.onOpen(),this.readyState!=="closed"&&this.resetPingTimeout()}resetPingTimeout(){this.clearTimeoutFn(this.pingTimeoutTimer),this.pingTimeoutTimer=this.setTimeoutFn(()=>{this.onClose("ping timeout")},this.pingInterval+this.pingTimeout),this.opts.autoUnref&&this.pingTimeoutTimer.unref()}onDrain(){this.writeBuffer.splice(0,this.prevBufferLen),this.prevBufferLen=0,this.writeBuffer.length===0?this.emitReserved("drain"):this.flush()}flush(){if(this.readyState!=="closed"&&this.transport.writable&&!this.upgrading&&this.writeBuffer.length){let e=this.getWritablePackets();this.transport.send(e),this.prevBufferLen=e.length,this.emitReserved("flush")}}getWritablePackets(){if(!(this.maxPayload&&this.transport.name==="polling"&&this.writeBuffer.length>1))return this.writeBuffer;let t=1;for(let i=0;i<this.writeBuffer.length;i++){let r=this.writeBuffer[i].data;if(r&&(t+=tt(r)),i>0&&t>this.maxPayload)return this.writeBuffer.slice(0,i);t+=2}return this.writeBuffer}write(e,t,i){return this.sendPacket("message",e,t,i),this}send(e,t,i){return this.sendPacket("message",e,t,i),this}sendPacket(e,t,i,r){if(typeof t=="function"&&(r=t,t=void 0),typeof i=="function"&&(r=i,i=null),this.readyState==="closing"||this.readyState==="closed")return;i=i||{},i.compress=i.compress!==!1;let n={type:e,data:t,options:i};this.emitReserved("packetCreate",n),this.writeBuffer.push(n),r&&this.once("flush",r),this.flush()}close(){let e=()=>{this.onClose("forced close"),this.transport.close()},t=()=>{this.off("upgrade",t),this.off("upgradeError",t),e()},i=()=>{this.once("upgrade",t),this.once("upgradeError",t)};return(this.readyState==="opening"||this.readyState==="open")&&(this.readyState="closing",this.writeBuffer.length?this.once("drain",()=>{this.upgrading?i():e()}):this.upgrading?i():e()),this}onError(e){s.priorWebsocketSuccess=!1,this.emitReserved("error",e),this.onClose("transport error",e)}onClose(e,t){(this.readyState==="opening"||this.readyState==="open"||this.readyState==="closing")&&(this.clearTimeoutFn(this.pingTimeoutTimer),this.transport.removeAllListeners("close"),this.transport.close(),this.transport.removeAllListeners(),typeof removeEventListener=="function"&&(removeEventListener("beforeunload",this.beforeunloadEventListener,!1),removeEventListener("offline",this.offlineEventListener,!1)),this.readyState="closed",this.id=null,this.emitReserved("close",e,t),this.writeBuffer=[],this.prevBufferLen=0)}filterUpgrades(e){let t=[],i=0,r=e.length;for(;i<r;i++)~this.transports.indexOf(e[i])&&t.push(e[i]);return t}};B.protocol=xe;var fs=B.protocol;function ft(s,e="",t){let i=s;t=t||typeof location<"u"&&location,s==null&&(s=t.protocol+"//"+t.host),typeof s=="string"&&(s.charAt(0)==="/"&&(s.charAt(1)==="/"?s=t.protocol+s:s=t.host+s),/^(https?|wss?):\/\//.test(s)||(typeof t<"u"?s=t.protocol+"//"+s:s="https://"+s),i=j(s)),i.port||(/^(http|ws)$/.test(i.protocol)?i.port="80":/^(http|ws)s$/.test(i.protocol)&&(i.port="443")),i.path=i.path||"/";let n=i.host.indexOf(":")!==-1?"["+i.host+"]":i.host;return i.id=i.protocol+"://"+n+":"+i.port+e,i.href=i.protocol+"://"+n+(t&&t.port===i.port?"":":"+i.port),i}var Ie={};Rt(Ie,{Decoder:()=>Le,Encoder:()=>$e,PacketType:()=>p,protocol:()=>bt});var Kt=typeof ArrayBuffer=="function",Jt=s=>typeof ArrayBuffer.isView=="function"?ArrayBuffer.isView(s):s.buffer instanceof ArrayBuffer,pt=Object.prototype.toString,zt=typeof Blob=="function"||typeof Blob<"u"&&pt.call(Blob)==="[object BlobConstructor]",Yt=typeof File=="function"||typeof File<"u"&&pt.call(File)==="[object FileConstructor]";function re(s){return Kt&&(s instanceof ArrayBuffer||Jt(s))||zt&&s instanceof Blob||Yt&&s instanceof File}function se(s,e){if(!s||typeof s!="object")return!1;if(Array.isArray(s)){for(let t=0,i=s.length;t<i;t++)if(se(s[t]))return!0;return!1}if(re(s))return!0;if(s.toJSON&&typeof s.toJSON=="function"&&arguments.length===1)return se(s.toJSON(),!0);for(let t in s)if(Object.prototype.hasOwnProperty.call(s,t)&&se(s[t]))return!0;return!1}function mt(s){let e=[],t=s.data,i=s;return i.data=Ae(t,e),i.attachments=e.length,{packet:i,buffers:e}}function Ae(s,e){if(!s)return s;if(re(s)){let t={_placeholder:!0,num:e.length};return e.push(s),t}else if(Array.isArray(s)){let t=new Array(s.length);for(let i=0;i<s.length;i++)t[i]=Ae(s[i],e);return t}else if(typeof s=="object"&&!(s instanceof Date)){let t={};for(let i in s)Object.prototype.hasOwnProperty.call(s,i)&&(t[i]=Ae(s[i],e));return t}return s}function gt(s,e){return s.data=Te(s.data,e),delete s.attachments,s}function Te(s,e){if(!s)return s;if(s&&s._placeholder===!0){if(typeof s.num=="number"&&s.num>=0&&s.num<e.length)return e[s.num];throw new Error("illegal attachments")}else if(Array.isArray(s))for(let t=0;t<s.length;t++)s[t]=Te(s[t],e);else if(typeof s=="object")for(let t in s)Object.prototype.hasOwnProperty.call(s,t)&&(s[t]=Te(s[t],e));return s}var Gt=["connect","connect_error","disconnect","disconnecting","newListener","removeListener"],bt=5,p;(function(s){s[s.CONNECT=0]="CONNECT",s[s.DISCONNECT=1]="DISCONNECT",s[s.EVENT=2]="EVENT",s[s.ACK=3]="ACK",s[s.CONNECT_ERROR=4]="CONNECT_ERROR",s[s.BINARY_EVENT=5]="BINARY_EVENT",s[s.BINARY_ACK=6]="BINARY_ACK"})(p||(p={}));var $e=class{constructor(e){this.replacer=e}encode(e){return(e.type===p.EVENT||e.type===p.ACK)&&se(e)?this.encodeAsBinary({type:e.type===p.EVENT?p.BINARY_EVENT:p.BINARY_ACK,nsp:e.nsp,data:e.data,id:e.id}):[this.encodeAsString(e)]}encodeAsString(e){let t=""+e.type;return(e.type===p.BINARY_EVENT||e.type===p.BINARY_ACK)&&(t+=e.attachments+"-"),e.nsp&&e.nsp!=="/"&&(t+=e.nsp+","),e.id!=null&&(t+=e.id),e.data!=null&&(t+=JSON.stringify(e.data,this.replacer)),t}encodeAsBinary(e){let t=mt(e),i=this.encodeAsString(t.packet),r=t.buffers;return r.unshift(i),r}};function yt(s){return Object.prototype.toString.call(s)==="[object Object]"}var Le=class s extends y{constructor(e){super(),this.reviver=e}add(e){let t;if(typeof e=="string"){if(this.reconstructor)throw new Error("got plaintext data when reconstructing a packet");t=this.decodeString(e);let i=t.type===p.BINARY_EVENT;i||t.type===p.BINARY_ACK?(t.type=i?p.EVENT:p.ACK,this.reconstructor=new Ue(t),t.attachments===0&&super.emitReserved("decoded",t)):super.emitReserved("decoded",t)}else if(re(e)||e.base64)if(this.reconstructor)t=this.reconstructor.takeBinaryData(e),t&&(this.reconstructor=null,super.emitReserved("decoded",t));else throw new Error("got binary data when not reconstructing a packet");else throw new Error("Unknown type: "+e)}decodeString(e){let t=0,i={type:Number(e.charAt(0))};if(p[i.type]===void 0)throw new Error("unknown packet type "+i.type);if(i.type===p.BINARY_EVENT||i.type===p.BINARY_ACK){let n=t+1;for(;e.charAt(++t)!=="-"&&t!=e.length;);let o=e.substring(n,t);if(o!=Number(o)||e.charAt(t)!=="-")throw new Error("Illegal attachments");i.attachments=Number(o)}if(e.charAt(t+1)==="/"){let n=t+1;for(;++t&&!(e.charAt(t)===","||t===e.length););i.nsp=e.substring(n,t)}else i.nsp="/";let r=e.charAt(t+1);if(r!==""&&Number(r)==r){let n=t+1;for(;++t;){let o=e.charAt(t);if(o==null||Number(o)!=o){--t;break}if(t===e.length)break}i.id=Number(e.substring(n,t+1))}if(e.charAt(++t)){let n=this.tryParse(e.substr(t));if(s.isPayloadValid(i.type,n))i.data=n;else throw new Error("invalid payload")}return i}tryParse(e){try{return JSON.parse(e,this.reviver)}catch{return!1}}static isPayloadValid(e,t){switch(e){case p.CONNECT:return yt(t);case p.DISCONNECT:return t===void 0;case p.CONNECT_ERROR:return typeof t=="string"||yt(t);case p.EVENT:case p.BINARY_EVENT:return Array.isArray(t)&&(typeof t[0]=="number"||typeof t[0]=="string"&&Gt.indexOf(t[0])===-1);case p.ACK:case p.BINARY_ACK:return Array.isArray(t)}}destroy(){this.reconstructor&&(this.reconstructor.finishedReconstruction(),this.reconstructor=null)}},Ue=class{constructor(e){this.packet=e,this.buffers=[],this.reconPack=e}takeBinaryData(e){if(this.buffers.push(e),this.buffers.length===this.reconPack.attachments){let t=gt(this.reconPack,this.buffers);return this.finishedReconstruction(),t}return null}finishedReconstruction(){this.reconPack=null,this.buffers=[]}};function S(s,e,t){return s.on(e,t),function(){s.off(e,t)}}var Xt=Object.freeze({connect:1,connect_error:1,disconnect:1,disconnecting:1,newListener:1,removeListener:1}),W=class extends y{constructor(e,t,i){super(),this.connected=!1,this.recovered=!1,this.receiveBuffer=[],this.sendBuffer=[],this._queue=[],this._queueSeq=0,this.ids=0,this.acks={},this.flags={},this.io=e,this.nsp=t,i&&i.auth&&(this.auth=i.auth),this._opts=Object.assign({},i),this.io._autoConnect&&this.open()}get disconnected(){return!this.connected}subEvents(){if(this.subs)return;let e=this.io;this.subs=[S(e,"open",this.onopen.bind(this)),S(e,"packet",this.onpacket.bind(this)),S(e,"error",this.onerror.bind(this)),S(e,"close",this.onclose.bind(this))]}get active(){return!!this.subs}connect(){return this.connected?this:(this.subEvents(),this.io._reconnecting||this.io.open(),this.io._readyState==="open"&&this.onopen(),this)}open(){return this.connect()}send(...e){return e.unshift("message"),this.emit.apply(this,e),this}emit(e,...t){if(Xt.hasOwnProperty(e))throw new Error('"'+e.toString()+'" is a reserved event name');if(t.unshift(e),this._opts.retries&&!this.flags.fromQueue&&!this.flags.volatile)return this._addToQueue(t),this;let i={type:p.EVENT,data:t};if(i.options={},i.options.compress=this.flags.compress!==!1,typeof t[t.length-1]=="function"){let o=this.ids++,c=t.pop();this._registerAckCallback(o,c),i.id=o}let r=this.io.engine&&this.io.engine.transport&&this.io.engine.transport.writable;return this.flags.volatile&&(!r||!this.connected)||(this.connected?(this.notifyOutgoingListeners(i),this.packet(i)):this.sendBuffer.push(i)),this.flags={},this}_registerAckCallback(e,t){var i;let r=(i=this.flags.timeout)!==null&&i!==void 0?i:this._opts.ackTimeout;if(r===void 0){this.acks[e]=t;return}let n=this.io.setTimeoutFn(()=>{delete this.acks[e];for(let o=0;o<this.sendBuffer.length;o++)this.sendBuffer[o].id===e&&this.sendBuffer.splice(o,1);t.call(this,new Error("operation has timed out"))},r);this.acks[e]=(...o)=>{this.io.clearTimeoutFn(n),t.apply(this,[null,...o])}}emitWithAck(e,...t){let i=this.flags.timeout!==void 0||this._opts.ackTimeout!==void 0;return new Promise((r,n)=>{t.push((o,c)=>i?o?n(o):r(c):r(o)),this.emit(e,...t)})}_addToQueue(e){let t;typeof e[e.length-1]=="function"&&(t=e.pop());let i={id:this._queueSeq++,tryCount:0,pending:!1,args:e,flags:Object.assign({fromQueue:!0},this.flags)};e.push((r,...n)=>i!==this._queue[0]?void 0:(r!==null?i.tryCount>this._opts.retries&&(this._queue.shift(),t&&t(r)):(this._queue.shift(),t&&t(null,...n)),i.pending=!1,this._drainQueue())),this._queue.push(i),this._drainQueue()}_drainQueue(e=!1){if(!this.connected||this._queue.length===0)return;let t=this._queue[0];t.pending&&!e||(t.pending=!0,t.tryCount++,this.flags=t.flags,this.emit.apply(this,t.args))}packet(e){e.nsp=this.nsp,this.io._packet(e)}onopen(){typeof this.auth=="function"?this.auth(e=>{this._sendConnectPacket(e)}):this._sendConnectPacket(this.auth)}_sendConnectPacket(e){this.packet({type:p.CONNECT,data:this._pid?Object.assign({pid:this._pid,offset:this._lastOffset},e):e})}onerror(e){this.connected||this.emitReserved("connect_error",e)}onclose(e,t){this.connected=!1,delete this.id,this.emitReserved("disconnect",e,t)}onpacket(e){if(e.nsp===this.nsp)switch(e.type){case p.CONNECT:e.data&&e.data.sid?this.onconnect(e.data.sid,e.data.pid):this.emitReserved("connect_error",new Error("It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)"));break;case p.EVENT:case p.BINARY_EVENT:this.onevent(e);break;case p.ACK:case p.BINARY_ACK:this.onack(e);break;case p.DISCONNECT:this.ondisconnect();break;case p.CONNECT_ERROR:this.destroy();let i=new Error(e.data.message);i.data=e.data.data,this.emitReserved("connect_error",i);break}}onevent(e){let t=e.data||[];e.id!=null&&t.push(this.ack(e.id)),this.connected?this.emitEvent(t):this.receiveBuffer.push(Object.freeze(t))}emitEvent(e){if(this._anyListeners&&this._anyListeners.length){let t=this._anyListeners.slice();for(let i of t)i.apply(this,e)}super.emit.apply(this,e),this._pid&&e.length&&typeof e[e.length-1]=="string"&&(this._lastOffset=e[e.length-1])}ack(e){let t=this,i=!1;return function(...r){i||(i=!0,t.packet({type:p.ACK,id:e,data:r}))}}onack(e){let t=this.acks[e.id];typeof t=="function"&&(t.apply(this,e.data),delete this.acks[e.id])}onconnect(e,t){this.id=e,this.recovered=t&&this._pid===t,this._pid=t,this.connected=!0,this.emitBuffered(),this.emitReserved("connect"),this._drainQueue(!0)}emitBuffered(){this.receiveBuffer.forEach(e=>this.emitEvent(e)),this.receiveBuffer=[],this.sendBuffer.forEach(e=>{this.notifyOutgoingListeners(e),this.packet(e)}),this.sendBuffer=[]}ondisconnect(){this.destroy(),this.onclose("io server disconnect")}destroy(){this.subs&&(this.subs.forEach(e=>e()),this.subs=void 0),this.io._destroy(this)}disconnect(){return this.connected&&this.packet({type:p.DISCONNECT}),this.destroy(),this.connected&&this.onclose("io client disconnect"),this}close(){return this.disconnect()}compress(e){return this.flags.compress=e,this}get volatile(){return this.flags.volatile=!0,this}timeout(e){return this.flags.timeout=e,this}onAny(e){return this._anyListeners=this._anyListeners||[],this._anyListeners.push(e),this}prependAny(e){return this._anyListeners=this._anyListeners||[],this._anyListeners.unshift(e),this}offAny(e){if(!this._anyListeners)return this;if(e){let t=this._anyListeners;for(let i=0;i<t.length;i++)if(e===t[i])return t.splice(i,1),this}else this._anyListeners=[];return this}listenersAny(){return this._anyListeners||[]}onAnyOutgoing(e){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.push(e),this}prependAnyOutgoing(e){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.unshift(e),this}offAnyOutgoing(e){if(!this._anyOutgoingListeners)return this;if(e){let t=this._anyOutgoingListeners;for(let i=0;i<t.length;i++)if(e===t[i])return t.splice(i,1),this}else this._anyOutgoingListeners=[];return this}listenersAnyOutgoing(){return this._anyOutgoingListeners||[]}notifyOutgoingListeners(e){if(this._anyOutgoingListeners&&this._anyOutgoingListeners.length){let t=this._anyOutgoingListeners.slice();for(let i of t)i.apply(this,e.data)}}};function P(s){s=s||{},this.ms=s.min||100,this.max=s.max||1e4,this.factor=s.factor||2,this.jitter=s.jitter>0&&s.jitter<=1?s.jitter:0,this.attempts=0}P.prototype.duration=function(){var s=this.ms*Math.pow(this.factor,this.attempts++);if(this.jitter){var e=Math.random(),t=Math.floor(e*this.jitter*s);s=Math.floor(e*10)&1?s+t:s-t}return Math.min(s,this.max)|0};P.prototype.reset=function(){this.attempts=0};P.prototype.setMin=function(s){this.ms=s};P.prototype.setMax=function(s){this.max=s};P.prototype.setJitter=function(s){this.jitter=s};var K=class extends y{constructor(e,t){var i;super(),this.nsps={},this.subs=[],e&&typeof e=="object"&&(t=e,e=void 0),t=t||{},t.path=t.path||"/socket.io",this.opts=t,$(this,t),this.reconnection(t.reconnection!==!1),this.reconnectionAttempts(t.reconnectionAttempts||1/0),this.reconnectionDelay(t.reconnectionDelay||1e3),this.reconnectionDelayMax(t.reconnectionDelayMax||5e3),this.randomizationFactor((i=t.randomizationFactor)!==null&&i!==void 0?i:.5),this.backoff=new P({min:this.reconnectionDelay(),max:this.reconnectionDelayMax(),jitter:this.randomizationFactor()}),this.timeout(t.timeout==null?2e4:t.timeout),this._readyState="closed",this.uri=e;let r=t.parser||Ie;this.encoder=new r.Encoder,this.decoder=new r.Decoder,this._autoConnect=t.autoConnect!==!1,this._autoConnect&&this.open()}reconnection(e){return arguments.length?(this._reconnection=!!e,this):this._reconnection}reconnectionAttempts(e){return e===void 0?this._reconnectionAttempts:(this._reconnectionAttempts=e,this)}reconnectionDelay(e){var t;return e===void 0?this._reconnectionDelay:(this._reconnectionDelay=e,(t=this.backoff)===null||t===void 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'".concat(e,"'"))()),t}clearHtmlCache(){this.removeStore("htmlCache"),a("trace","uibuilder.module.js:clearHtmlCache","HTML cache cleared")()}restoreHtmlFromCache(){let e=this.getStore("htmlCache");if(e){let t=document.getElementsByTagName("html")[0];t.innerHTML=e,a("trace","uibuilder.module.js:restoreHtmlFromCache","Restored HTML from cache")()}else a("trace","uibuilder.module.js:restoreHtmlFromCache","No cache to restore")()}saveHtmlCache(){this.setStore("htmlCache",document.documentElement.innerHTML)}watchDom(e){let t=document.documentElement,i=this;this._htmlObserver||(this._htmlObserver=new MutationObserver(function(){this.takeRecords(),i.saveHtmlCache()})),e===!0||e===void 0?(this._htmlObserver.observe(t,{attributes:!0,childList:!0,subtree:!0,characterData:!0}),a("trace","uibuilder.module.js:watchDom","Started Watching and saving DOM changes")()):(this._htmlObserver.disconnect(),a("trace","uibuilder.module.js:watchDom","Stopped Watching and saving DOM changes")())}_send(e,t,i=""){t==null&&(t=this._ioChannels.client),t===this._ioChannels.client?e=Me(e,"payload"):t===this._ioChannels.control&&(e=Me(e,"uibuilderCtrl"),Object.prototype.hasOwnProperty.call(e,"uibuilderCtrl")||(e.uibuilderCtrl="manual send"),e.from="client"),e._socketId=this._socket.id,i===""&&this.originator!==""&&(i=this.originator),i!==""&&Object.assign(e,{_uib:{originator:i}}),Object.prototype.hasOwnProperty.call(e,"topic")||(this.topic!==void 0&&this.topic!==""?e.topic=this.topic:Object.prototype.hasOwnProperty.call(this,"msg")&&Object.prototype.hasOwnProperty.call(this.msg,"topic")&&(e.topic=this.msg.topic)),e._ui&&(e._ui.from="client");let r;t===this._ioChannels.client?(this.set("sentMsg",e),r=this.set("msgsSent",++this.msgsSent)):t===this._ioChannels.control&&(this.set("sentCtrlMsg",e),r=this.set("msgsSentCtrl",++this.msgsSentCtrl)),a("trace","Uib:_send"," Channel '".concat(t,"'. Sending msg #").concat(r),e)(),this._socket.emit(t,e)}send(e,t=""){this._send(e,this._ioChannels.client,t)}sendCtrl(e){this._send(e,this._ioChannels.control)}eventSend(e,t=""){if(this.$attrs){a("error","Uib:eventSend","`this` has been usurped by VueJS. Make sure that you wrap the call in a function: `doEvent: function (event) { uibuilder.eventSend(event) },`")();return}if(!e&&!event){a("warn","Uib:eventSend","Neither the domevent nor the hidden event properties are set. You probably called this function directly rather than applying to an on click event.")();return}if((!e||!e.constructor)&&(e=event),!e.constructor.name.endsWith("Event")||!e.currentTarget){a("warn","Uib:eventSend","ARGUMENT NOT A DOM EVENT - use data attributes not function arguments to pass data. Arg Type: ".concat(e.constructor.name),e)();return}e.preventDefault();let i=e.currentTarget,r={};Object.keys(i).forEach(m=>{m.startsWith("_")||(r[m]=i[m])});let n=["class","id","name"],o;try{o=Object.assign({},...Array.from(i.attributes,({name:m,value:_e})=>{if(!n.includes(m))return{[m]:_e}}))}catch{}let c,l=[];i.form&&(c={},c.valid=i.form.checkValidity(),Object.values(i.form).forEach((m,_e)=>{let V=m.id!==""?m.id:m.name!==""?m.name:"".concat(_e,"-").concat(m.type);if(V!==""&&m.type){if("checked"in m&&m.value==="on"&&(m.value=m.checked.toString()),l.push({key:V,val:m.value}),c[V]={id:m.id,name:m.name,value:m.value,valid:m.checkValidity(),type:m.type},c[V].valid===!1){let w=m.validity;c[V].validity={badInput:w.badInput===!0?w.badInput:void 0,customError:w.customError===!0?w.customError:void 0,patternMismatch:w.patternMismatch===!0?w.patternMismatch:void 0,rangeOverflow:w.rangeOverflow===!0?w.rangeOverflow:void 0,rangeUnderflow:w.rangeUnderflow===!0?w.rangeUnderflow:void 0,stepMismatch:w.stepMismatch===!0?w.stepMismatch:void 0,tooLong:w.tooLong===!0?w.tooLong:void 0,tooShort:w.tooShort===!0?w.tooShort:void 0,typeMismatch:w.typeMismatch===!0?w.typeMismatch:void 0,valueMissing:w.valueMissing===!0?w.valueMissing:void 0}}m.dataset&&(c[V].data=m.dataset)}}));let f;try{f=Array.from(i.classList)}catch{}let b={...i.dataset},x;Object.prototype.toString.call(i)==="[object Notification]"&&(b="notification-".concat(i.userAction),x={actions:i.actions,badge:i.badge,body:i.body,data:i.data,dir:i.dir,icon:i.icon,image:i.image,lang:i.lang,renotify:i.renotify,requireInteraction:i.requireInteraction,silent:i.silent,tag:i.tag,timestamp:i.timestamp,title:i.title,vibrate:i.vibrate});let k={payload:b,_ui:{type:"eventSend",id:i.id!==""?i.id:void 0,name:i.name!==""?i.name:void 0,slotText:i.textContent?i.textContent.substring(0,255):void 0,form:c,props:r,attribs:o,classes:f,notification:x,event:e.type,altKey:e.altKey,ctrlKey:e.ctrlKey,shiftKey:e.shiftKey,metaKey:e.metaKey,pointerType:e.pointerType,nodeName:i.nodeName,clientId:this.clientId,pageName:this.pageName,tabId:this.tabId}};l.length>0&&l.forEach(m=>{k.payload[m.key]=m.val}),e.type==="change"&&(k._ui.newValue=k.payload.value="checked"in i?i.checked:e.target.value),a("trace","Uib:eventSend","Sending msg to Node-RED",k)(),i.dataset&&i.dataset.length===0&&a("warn","Uib:eventSend","No payload in msg. data-* attributes should be used.")(),this._send(k,this._ioChannels.client,t)}htmlSend(e="",t=!0){let i="<!doctype html>\n".concat(document.documentElement.outerHTML),r={payload:i,length:i.length,topic:this.topic};return a("trace","Uib:htmlSend","Sending full HTML to Node-RED",r)(),t===!0&&this._send(r,this._ioChannels.client,e),i}_uibCommand(e){var l;if(!e._uib||!e._uib.command){a("error","uibuilder:_uibCommand","Invalid command message received",{msg:e})(),e.payload=e.error="Invalid command message received",this.send(e);return}let t=e._uib.command;if(!u(this,ve).includes(t.trim())){a("error","Uib:_uibCommand","Command '".concat(t," is not allowed to be called externally"))();return}let i=e._uib.prop,r=e._uib.value,n=(l=e._uib.quiet)!=null?l:!1,o,c;switch(t){case"elementIsVisible":{o=this.elementIsVisible(i);break}case"elementExists":{o=this.elementExists(i,!1),c='Element "'.concat(i,'" ').concat(o?"exists":"does not exist");break}case"get":{o=this.get(i);break}case"getManagedVarList":{i==="full"?o=this.getManagedVarList():o=Object.values(this.getManagedVarList());break}case"getWatchedVars":{i==="full"?o=this.getWatchedVars():o=Object.values(this.getWatchedVars());break}case"htmlSend":{o=this.htmlSend("",!1);break}case"include":{o=g.include(i,r);break}case"navigate":{let f;i?f=i:r&&(f=r),o=this.navigate(f);break}case"scrollTo":{o=this.scrollTo(i,r);break}case"set":{let f=!1,b=!1;e._uib.options&&e._uib.options.store&&(e._uib.options.store===!0&&(f=!0),e._uib.options.autoload===!0&&(b=!0)),o=this.set(i,r,f,b);break}case"showMsg":{o=this.showMsg(r,i);break}case"showStatus":{o=this.showStatus(r,i);break}case"uiGet":{o=g.uiGet(i,r);break}case"uiWatch":{o=this.uiWatch(i);break}case"watchUrlHash":{o=this.watchUrlHash(i);break}default:{a("warning","Uib:_uibCommand","Command '".concat(t,"' not yet implemented"))();break}}n!==!0&&(o===void 0&&(o="'".concat(i,"' is undefined")),Object(o).constructor===Promise?o.then(f=>(e.payload=e._uib.response=f,e.info=e._uib.info=c,e.topic||(e.topic=this.topic||"uib ".concat(t," for '").concat(i,"'")),this.send(e),!0)).catch(f=>{a(0,"Uib:_uibCommand","Error: ",f)()}):(e.payload=e._uib.response=o,e.info=e._uib.info=c,e.topic||(e.topic=this.topic||"uib ".concat(t," for '").concat(i,"'")),this.send(e)))}_forThis(e){let t=!0;return e.pageName&&e.pageName!==this.pageName&&(a("trace","Uib:_msgRcvdEvents:_uib","Not for this page")(),t=!1),e.clientId&&e.clientId!==this.clientId&&(a("trace","Uib:_msgRcvdEvents:_uib","Not for this clientId")(),t=!1),e.tabId&&e.tabId!==this.tabId&&(a("trace","Uib:_msgRcvdEvents:_uib","Not for this tabId")(),t=!1),t}_msgRcvdEvents(e){if(this._dispatchCustomEvent("uibuilder:stdMsgReceived",e),e.topic&&this._dispatchCustomEvent("uibuilder:msg:topic:".concat(e.topic),e),e._uib){if(!this._forThis(e._uib))return;if(e._uib.reload===!0){a("trace","Uib:_msgRcvdEvents:_uib:reload","reloading")(),location.reload();return}if(e._uib.command){this._uibCommand(e);return}e._uib.componentRef==="globalNotification"&&g.showDialog("notify",e._uib.options,e),e._uib.componentRef==="globalAlert"&&g.showDialog("alert",e._uib.options,e)}if(e._ui){if(!this._forThis(e._ui))return;a("trace","Uib:_msgRcvdEvents:_ui","Calling _uiManager")(),this._dispatchCustomEvent("uibuilder:msg:_ui",e),g._uiManager(e)}}_stdMsgFromServer(e){e=Me(e,"payload"),!(e._uib&&!this._forThis(e._uib))&&(e._ui&&!this._forThis(e._ui)||(this._checkTimestamp(e),this.set("msgsReceived",++this.msgsReceived),this._msgRcvdEvents(e),"_ui"in e&&!("payload"in e)||this.set("msg",e),a("info","Uib:ioSetup:stdMsgFromServer","Channel '".concat(this._ioChannels.server,"'. Received msg #").concat(this.msgsReceived,"."),e)()))}_ctrlMsgFromServer(e){if(e===null)e={};else if(typeof e!="object"){let t={};t["uibuilderCtrl:"+this._ioChannels.control]=e,e=t}switch(this._checkTimestamp(e),this.set("ctrlMsg",e),this.set("msgsCtrlReceived",++this.msgsCtrlReceived),a("trace","Uib:ioSetup:_ctrlMsgFromServer","Channel '".concat(this._ioChannels.control,"'. Received control msg #").concat(this.msgsCtrlReceived),e)(),e.uibuilderCtrl){case"shutdown":{a("info","Uib:ioSetup:".concat(this._ioChannels.control),'\u274C Received "shutdown" from server')(),this.set("serverShutdown",void 0);break}case"client connect":{a("trace","Uib:ioSetup:".concat(this._ioChannels.control),'Received "client connect" from server')(),a("info","Uib:ioSetup:".concat(this._ioChannels.control),"\u2705 Server connected. Version: ".concat(e.version,"\nServer time: ").concat(e.serverTimestamp,", Sever time offset: ").concat(this.serverTimeOffset," hours"))(),E._meta.version.startsWith(e.version.split("-")[0])||a("warn","Uib:ioSetup:".concat(this._ioChannels.control),"Server version (".concat(e.version,") not the same as the client version (").concat(E._meta.version,")"))(),this.autoSendReady===!0&&a("trace","Uib:ioSetup:".concat(this._ioChannels.control,"/client connect"),"Auto-sending ready-for-content/replay msg to server");break}default:a("trace","uibuilderfe:ioSetup:".concat(this._ioChannels.control),"Received ".concat(e.uibuilderCtrl," from server"))}}beaconLog(e,t){t||(t="debug"),navigator.sendBeacon("./_clientLog","".concat(t,"::").concat(e))}logToServer(){this.sendCtrl({uibuilderCtrl:"client log message",payload:arguments,_socketId:this._socket.id,clientId:this.clientId,tabId:this.tabId,pageName:this.pageName,connections:this.connectedNum,lastNavType:this.lastNavType})}_getIOnamespace(){let e;if(e=this.cookies["uibuilder-namespace"],e===void 0||e===""){let t=window.location.pathname.split("/").filter(function(i){return i.trim()!==""});t.length>0&&t[t.length-1].endsWith(".html")&&t.pop(),e=t.pop(),a("trace","uibuilder.module.js:getIOnamespace","Socket.IO namespace found via url path: ".concat(e))()}else a("trace","uibuilder.module.js:getIOnamespace","Socket.IO namespace found via cookie: ".concat(e))();return this.url=e,e="/"+e,a("trace","uibuilder.module.js:getIOnamespace","Final Socket.IO namespace: ".concat(e))(),e}_checkConnect(e,t,i=1){if(navigator.onLine!==!1)return e||(e=this.retryMs),t||(t=this.retryFactor),a("trace","Uib:checkConnect","Checking connection. Connected: ".concat(this._socket.connected,". Timer: ").concat(u(this,_),". Depth: ").concat(i,". Delay: ").concat(e,". Factor: ").concat(t),this._socket)(),this._socket.connected===!0?(u(this,_)&&(window.clearTimeout(u(this,_)),A(this,_,null)),this.set("ioConnected",!0),this.set("socketError",null),!0):(this.set("ioConnected",!1),u(this,_)&&window.clearTimeout(u(this,_)),A(this,_,window.setTimeout(()=>{a("warn","Uib:checkConnect:setTimeout","Socket.IO reconnection attempt. Current delay: ".concat(e,". Depth: ").concat(i))(),this._socket.close(),this._socket.connect(),A(this,_,null),this._checkConnect(e*t,t,i++)},e)),!1)}_onConnect(){a("info","Uib:ioSetup","\u2705 SOCKET CONNECTED. Connection count: ".concat(this.connectedNum,", Is a Recovery?: ").concat(this._socket.recovered,". \nNamespace: ").concat(this.ioNamespace))(),this._dispatchCustomEvent("uibuilder:socket:connected",{numConnections:this.connectedNum,isRecovery:this._socket.recovered}),this._checkConnect()}_onDisconnect(e){a("info","Uib:ioSetup:socket-disconnect","\u26D4 Socket Disconnected. Reason: ".concat(e))(),this._dispatchCustomEvent("uibuilder:socket:disconnected",e),this._checkConnect()}_ioSetup(){return J===void 0?(a("error","Uib:ioSetup","Socket.IO client not loaded, Node-RED comms will not work")(),!1):(this._socket&&(a("trace","Uib:ioSetup","Removing listeners in preparation for redoing Socket.IO connections")(),u(this,_)&&(window.clearTimeout(u(this,_)),A(this,_,null)),this._socket.close(),this._socket.offAny(),this._socket=void 0,this.set("ioConnected",!1)),this.socketOptions.path=this.ioPath,a("trace","Uib:ioSetup","About to create IO object. Transports: [".concat(this.socketOptions.transports.join(", "),"]"))(),this._socket=J(this.ioNamespace,this.socketOptions),this._socket.on("connect",this._onConnect.bind(this)),this._socket.on(this._ioChannels.server,this._stdMsgFromServer.bind(this)),this._socket.on(this._ioChannels.control,this._ctrlMsgFromServer.bind(this)),this._socket.on("disconnect",this._onDisconnect.bind(this)),this._socket.on("connect_error",e=>{navigator.onLine!==!1&&(a("error","Uib:ioSetup:connect_error","\u274C Socket.IO Connect Error. Reason: ".concat(e.message),e)(),this.set("ioConnected",!1),this.set("socketError",e),this._dispatchCustomEvent("uibuilder:socket:disconnected",e))}),this._socket.on("error",e=>{a("error","Uib:ioSetup:error","\u274C Socket.IO Error. Reason: ".concat(e.message),e)(),this.set("ioConnected",!1),this.set("socketError",e),this._dispatchCustomEvent("uibuilder:socket:disconnected",e)}),this._checkConnect(),!0)}start(e){a("trace","Uib:start","Starting")(),u(this,oe)&&this.cancelChange("msg",u(this,oe)),this.started===!0&&a("info","Uib:start","Start function already called. Resetting Socket.IO and msg handler.")(),a("log","Uib:start","Cookies: ",this.cookies,"\nClient ID: ".concat(this.clientId))(),a("trace","Uib:start","ioNamespace: ",this.ioNamespace,"\nioPath: ".concat(this.ioPath))(),e&&(e.ioNamespace!==void 0&&e.ioNamespace!==null&&e.ioNamespace!==""&&this.set("ioNamespace",e.ioNamespace),e.ioPath!==void 0&&e.ioPath!==null&&e.ioPath!==""&&this.set("ioPath",e.ioPath)),document.styleSheets.length>=1||document.styleSheets.length===1&&document.styleSheets[0].cssRules.length===0?a("info","Uib:start","Styles already loaded so not loading uibuilder default styles.")():e&&e.loadStylesheet===!1?a("info","Uib:start","No styles loaded & options.loadStylesheet === false.")():(a("info","Uib:start","No styles loaded, loading uibuilder default styles.")(),this.loadStyleSrc("".concat(this.httpNodeRoot,"/uibuilder/uib-brand.min.css")));let[t]=performance.getEntriesByType("navigation");if(this.set("lastNavType",t.type),this.set("started",this._ioSetup()),this.started===!0?a("trace","Uib:start","Start completed. Socket.IO client library loaded.")():a("error","Uib:start","Start completed. ERROR: Socket.IO client library NOT LOADED.")(),this._watchHashChanges(),window.Vue){this.set("isVue",!0);try{this.set("vueVersion",window.Vue.version)}catch{}a("trace","Uib:start","VueJS is loaded. Version: ".concat(this.vueVersion))()}else a("trace","Uib:start","VueJS is not loaded.")();window.DOMPurify?(this.set("purify",!0),a("trace","Uib:start","DOMPurify is loaded.")()):a("trace","Uib:start","DOMPurify is not loaded.")(),window.markdownit?(this.set("markdown",!0),a("trace","Uib:start","Markdown-IT is loaded.")()):a("trace","Uib:start","Markdown-IT is not loaded.")(),this.onChange("msg",i=>{if(u(this,z)===!0){let r=document.getElementById("uib_last_msg");r&&(r.innerHTML=this.syntaxHighlight(i))}}),this._dispatchCustomEvent("uibuilder:startComplete")}},q=new WeakMap,O=new WeakMap,T=new WeakMap,_=new WeakMap,oe=new WeakMap,z=new WeakMap,Y=new WeakMap,H=new WeakMap,ve=new WeakMap,ae=new WeakMap,ce=new WeakMap,M=new WeakMap,h(E,"_meta",{version:wt,type:"module",displayName:"uibuilder"}),E),ke=new ei;window.uibuilder?a("error","uibuilder.module.js","`uibuilder` already assigned to window. Have you tried to load it more than once?"):window.uibuilder=ke;window.uib?a("warn","uibuilder.module.js","`uib` shortcut already assigned to window."):window.uib=ke;window.$?a("warn","uibuilder.module.js","Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` instead."):window.$=window.uibuilder.$;window.$$?a("warn","uibuilder.module.js","Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` instead."):window.$$=window.uibuilder.$$;var Js=ke;ke.start();customElements.define("uib-var",G);})();
 //# sourceMappingURL=uibuilder.iife.min.js.map
diff --git a/front-end/uibuilder.iife.min.js.map b/front-end/uibuilder.iife.min.js.map
index e7146b2c..710ef0e5 100644
--- a/front-end/uibuilder.iife.min.js.map
+++ b/front-end/uibuilder.iife.min.js.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
   "sources": ["src/front-end-module/ui.js", "src/front-end-module/uibuilder.module.js", "src/components/uib-var.js", "node_modules/engine.io-parser/build/esm/commons.js", "node_modules/engine.io-parser/build/esm/encodePacket.browser.js", "node_modules/engine.io-parser/build/esm/contrib/base64-arraybuffer.js", "node_modules/engine.io-parser/build/esm/decodePacket.browser.js", "node_modules/engine.io-parser/build/esm/index.js", "node_modules/@socket.io/component-emitter/index.mjs", "node_modules/engine.io-client/build/esm/globalThis.browser.js", "node_modules/engine.io-client/build/esm/util.js", "node_modules/engine.io-client/build/esm/contrib/parseqs.js", "node_modules/engine.io-client/build/esm/transport.js", "node_modules/engine.io-client/build/esm/contrib/yeast.js", "node_modules/engine.io-client/build/esm/contrib/has-cors.js", "node_modules/engine.io-client/build/esm/transports/xmlhttprequest.browser.js", "node_modules/engine.io-client/build/esm/transports/polling.js", "node_modules/engine.io-client/build/esm/transports/websocket-constructor.browser.js", "node_modules/engine.io-client/build/esm/transports/websocket.js", "node_modules/engine.io-client/build/esm/transports/webtransport.js", "node_modules/engine.io-client/build/esm/transports/index.js", "node_modules/engine.io-client/build/esm/contrib/parseuri.js", "node_modules/engine.io-client/build/esm/socket.js", "node_modules/engine.io-client/build/esm/index.js", "node_modules/socket.io-client/build/esm/url.js", "node_modules/socket.io-parser/build/esm/index.js", "node_modules/socket.io-parser/build/esm/is-binary.js", "node_modules/socket.io-parser/build/esm/binary.js", "node_modules/socket.io-client/build/esm/on.js", "node_modules/socket.io-client/build/esm/socket.js", "node_modules/socket.io-client/build/esm/contrib/backo2.js", "node_modules/socket.io-client/build/esm/manager.js", "node_modules/socket.io-client/build/esm/index.js"],
-  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        this._uiManager(msg)\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += msg.payload\n        if (ui.content) content += ui.content\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    // Namespaces - See https://stackoverflow.com/a/52572048/1309986\n    // const NAMESPACES = {\n    //     svg: 'http://www.w3.org/2000/svg',\n    //     html: 'http://www.w3.org/1999/xhtml',\n    //     xml: 'http://www.w3.org/XML/1998/namespace',\n    //     xlink: 'http://www.w3.org/1999/xlink',\n    //     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n    // }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    /** External alias for _uiComposeComponent\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n\n    } // --- end of _uiManager ---\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName !== null && propName !== '') {\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    // Nightmare of different object types in a DOM Element!\n                    if (prop.constructor.name === 'NamedNodeMap') { // Attributes\n                        const p = {}\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                        out.push(p)\n                    } else if (!prop.constructor.name.toLowerCase().includes('map')) { // Ordinary properties\n                        out.push({\n                            [propName]: prop\n                        })\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                        out.push(p)\n                    }\n                }\n\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n", "/* This is the Front-End JavaScript for uibuilder  in HTML Module form\n  It provides a number of global objects that can be used in your own javascript.\n  see the docs folder `./docs/uibuilder.module.md` for details of how to use this fully.\n\n  Please use the default index.js file for your own code and leave this as-is.\n  See Uib._meta for client version string\n\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n//#region --- Type Defs --- //\n/**\n * A string containing HTML markup\n * @typedef {string} html\n */\n//#endregion --- Type Defs --- //\n\n//#region --- We need the Socket.IO & ui libraries & the uib-var component  --- //\n// @ts-ignore - Note: Only works when using esbuild to bundle\nimport Ui from './ui'\nimport UibVar from '../components/uib-var'\nimport io from 'socket.io-client'\n\n// TODO - Maybe - check if already loaded as window['io']?\n// TODO - Maybe - Should this be moved to inside the class - would know the httpRoot then so less need to guess?\n// TODO           Or, could pull the cookie processing out of the class\n// const ioLocns = [ // Likely locations of the Socket.IO client library\n//     // Where it should normally be\n//     '../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and haven't changed httpNodeRoot\n//     '/uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and have changed httpNodeRoot\n//     '../../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Direct from the Internet - last ditch attempt\n//     'https://cdn.jsdelivr.net/npm/socket.io-client/+esm',\n// ]\n\n// let io\n// for (const locn of ioLocns) {\n//     try {\n//         ({ io } = await import(locn))\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library found at '${locn}'`)()\n//     } catch (e) {\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library not found at '${locn}'`)()\n//     }\n//     if (io) break\n// }\n// if (!io) log('error', 'uibuilder.module.js', 'Socket.IO client failed to load')()\n//#endregion -------- -------- -------- //\n\nconst version = '6.8.0-src'\n\n// TODO Add option to allow log events to be sent back to Node-RED as uib ctrl msgs\n//#region --- Module-level utility functions --- //\n\n// @ts-ignore Detect whether the loaded library is minified or not\nconst isMinified = !(/param/).test(function (param) { }) // eslint-disable-line no-unused-vars\n\n//#region --- print/console - debugging output functions --- //\n\n/** Default log level - Error & Warn */\nlet logLevel = isMinified ? 0 : 1  // When using minified lib, assume production and only log errors otherwise also log warn\n// function changeLogLevel(level) {\n//     logLevel = level\n//     console.trace = logLevel < 4 ? function(){} : console.trace\n//     console.debug = logLevel < 2 ? function(){} : console.debug\n//     if ( logLevel < 1 ) {\n//         console.log = console.group = console.groupEnd =  function(){}\n//     }\n// }\n\n// Experimental\nconst LOG_STYLES = {\n    // 0\n    error: {\n        css: 'background: red; color: black;',\n        txtCss: 'color: red; ',\n        pre: '\u26D4 ',\n        console: 'error',  // or trace\n    },\n    // 1\n    warn: {\n        css: 'background: darkorange; color: black;',\n        txtCss: 'color: darkorange; ',\n        pre: '\u26A0 ',\n        console: 'warn',\n    },\n    // 2\n    info: {\n        css: 'background: aqua; color: black;',\n        txtCss: 'color: aqua;',\n        pre: '\u2757 ',\n        console: 'info',\n    },\n    // 3\n    log: {\n        css: 'background: grey; color: yellow;',\n        txtCss: 'color: grey;',\n        pre: '',\n        console: 'log',\n    },\n    // 4\n    debug: {\n        css: 'background: chartreuse; color: black;',\n        txtCss: 'color: chartreuse;',\n        pre: '',\n        console: 'debug',\n    },\n    // 5\n    trace: {\n        css: 'background: indigo; color: yellow;',\n        txtCss: 'color: hotpink;',\n        pre: '',\n        console: 'log',\n    },\n\n    names: ['error', 'warn', 'info', 'log', 'debug', 'trace'],\n    reset: 'color: inherit;',\n    head: 'font-weight:bold; font-style:italic;',\n    level: 'font-weight:bold; border-radius: 3px; padding: 2px 5px; display:inline-block;',\n}\n/** Custom logging. e.g. log(2, 'here:there', 'jiminy', {fred:'jim'})()\n * @returns {Function} Log function @example log(2, 'here:there', 'jiminy', {fred:'jim'})()\n */\nfunction log() {\n    // Get the args\n    const args = Array.prototype.slice.call(arguments)\n\n    // 1st arg is the log level/type\n    let level = args.shift()\n    let strLevel\n    switch (level) {\n        case 'trace':\n        case 5: {\n            if (logLevel < 5) break\n            level = 5 // make sure level is numeric\n            strLevel = 'trace'\n            break\n        }\n\n        case 'debug':\n        case 4: {\n            if (logLevel < 4) break\n            level = 4\n            strLevel = 'debug'\n            break\n        }\n\n        case 'log':\n        case 3: {\n            if (logLevel < 3) break\n            level = 3\n            strLevel = 'log'\n            break\n        }\n\n        case 'info':\n        case '':\n        case 2: {\n            if (logLevel < 2) break\n            level = 2\n            strLevel = 'info'\n            break\n        }\n\n        case 'warn':\n        case 1: {\n            if (logLevel < 1) break\n            level = 1\n            strLevel = 'warn'\n            break\n        }\n\n        case 'error':\n        case 'err':\n        case 0: {\n            if (logLevel < 0) break\n            level = 0\n            strLevel = 'error'\n            break\n        }\n\n        default: {\n            level = -1\n            break\n        }\n\n    }\n\n    // If set to something unknown, no log output\n    if (strLevel === undefined) return function () { }\n\n    // 2nd arg is a heading that will be colour highlighted\n    const head = args.shift()\n\n    // Bind back to console.log (could use console[strLevel] but some levels ignore some formatting, use console.xxx directly or dedicated fn)\n    return Function.prototype.bind.call(\n        console[LOG_STYLES[strLevel].console],\n        console,\n        `%c${LOG_STYLES[strLevel].pre}${strLevel}%c [${head}]`, `${LOG_STYLES.level} ${LOG_STYLES[strLevel].css}`, `${LOG_STYLES.head} ${LOG_STYLES[strLevel].txtCss}`,\n        ...args\n    )\n}\n//#endregion\n\n/** A hack to dynamically load a remote module and wait until it is loaded\n * @param {string} url The URL of the module to load\n * @returns {object|null} Either the result object or null (if the load fails)\n */\n// function loadModule(url) { // eslint-disable-line no-unused-vars\n//     let done\n\n//     import(url)\n//         .then(res => {\n//             log('debug', '>> then >>', res)()\n//             done = res\n//         })\n//         .catch(err => {\n//             console.error(`[uibuilder:loadModule] Could not load module ${url}`, err)\n//             done = null\n//         })\n\n//     //  eslint-disable-next-line no-empty\n//     while (!done) { } // eslint-disable-line no-unmodified-loop-condition\n\n//     return done\n// }\n\n/** Makes a null or non-object into an object\n * If not null, moves \"thing\" to {payload:thing}\n *\n * @param {*} thing Thing to check\n * @param {string} [property='payload'] property that \"thing\" is moved to if not null and not an object\n * @returns {!object} _\n */\nfunction makeMeAnObject(thing, property) {\n    if (!property) property = 'payload'\n    if (typeof property !== 'string') {\n        log('warn', 'uibuilderfe:makeMeAnObject', `WARNING: property parameter must be a string and not: ${typeof property}`)()\n        property = 'payload'\n    }\n    let out = {}\n    if ( thing !== null && thing.constructor.name === 'Object' ) {\n        out = thing\n    } else if (thing !== null) {\n        out[property] = thing\n    }\n    return out\n} // --- End of make me an object --- //\n\n/** Joins all arguments as a URL string\n * see http://stackoverflow.com/a/28592528/3016654\n * since v1.0.10, fixed potential double // issue\n * arguments {string} URL fragments\n * @returns {string} _\n */\nfunction urlJoin() {\n    const paths = Array.prototype.slice.call(arguments)\n    const url = '/' + paths.map(function (e) {\n        return e.replace(/^\\/|\\/$/g, '')\n    })\n        .filter(function (e) {\n            return e\n        })\n        .join('/')\n    return url.replace('//', '/')\n} // ---- End of urlJoin ---- //\n\n/** Convert JSON to Syntax Highlighted HTML\n * @param {object} json A JSON/JavaScript Object\n * @returns {html} Object reformatted as highlighted HTML\n */\nfunction syntaxHighlight(json) {\n    if (json === undefined) {\n        json = '<span class=\"undefined\">undefined</span>'\n    } else {\n        try {\n            json = JSON.stringify(json, undefined, 4)\n            // json = json.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;') // eslint-disable-line newline-per-chained-call\n            json = json.replace(/(\"(\\\\u[a-zA-Z0-9]{4}|\\\\[^u]|[^\\\\\"])*\"(\\s*:)?|\\b(true|false|null)\\b|-?\\d+(?:\\.\\d*)?(?:[eE][+-]?\\d+)?)/g, function (match) { // eslint-disable-line prefer-named-capture-group\n                let cls = 'number'\n                if ((/^\"/).test(match)) {\n                    if ((/:$/).test(match)) {\n                        cls = 'key'\n                    } else {\n                        cls = 'string'\n                    }\n                } else if ((/true|false/).test(match)) {\n                    cls = 'boolean'\n                } else if ((/null/).test(match)) {\n                    cls = 'null'\n                }\n                return `<span class=\"${cls}\">${match}</span>`\n            })\n        } catch (e) {\n            json = `Syntax Highlight ERROR: ${e.message}`\n        }\n    }\n    return json\n}\n\n/** msg._ui handling functions */\nconst _ui = new Ui(window, log, syntaxHighlight)\n\n//#endregion --- Module-level utility functions --- //\n\n/** Define and export the Uib class - note that an instance of the class is also exported in the wrap-up\n * @typicalname uibuilder\n */\nexport const Uib = class Uib {\n\n    //#region --- Static variables ---\n    static _meta = {\n        version: version,\n        type: 'module',\n        displayName: 'uibuilder',\n    }\n    //#endregion ---- ---- ---- ----\n\n    //#region private class vars\n\n    // How many times has the loaded instance connected to Socket.IO (detect if not a new load?)\n    connectedNum = 0\n    // event listener callbacks by property name\n    // #events = {}\n    // Socket.IO channel names\n    _ioChannels = { control: 'uiBuilderControl', client: 'uiBuilderClient', server: 'uiBuilder' }\n    /** setInterval holder for pings @type {function|undefined} */\n    #pingInterval\n    // onChange event callbacks\n    #propChangeCallbacks = {}\n    // onTopic event callbacks\n    #msgRecvdByTopicCallbacks = {}\n    // Is Vue available?\n    isVue = false\n    // What version? Set in startup if Vue is loaded. Won't always work\n    vueVersion = undefined\n    /** setInterval id holder for Socket.IO checkConnect\n     * @type {number|null}\n     */\n    #timerid = null\n    // Holds the reference ID for the internal msg change event handler so that it can be cancelled\n    #MsgHandler\n    // Placeholder for io.socket - can't make a # var until # fns allowed in all browsers\n    _socket\n    // Placeholder for an observer that watches the whole DOM for changes - can't make a # var until # fns allowed in all browsers\n    _htmlObserver\n    // Has showMsg been turned on?\n    #isShowMsg = false\n    // Has showStatus been turned on?\n    #isShowStatus = false\n    // If true, URL hash changes send msg back to node-red. Controlled by watchUrlHash()\n    #sendUrlHash = false\n    // Externally accessible command functions (NB: Case must match) - remember to update _uibCommand for new commands\n    #extCommands = [\n        'elementExists', 'get', 'getManagedVarList', 'getWatchedVars', 'htmlSend', 'include',\n        'navigate', 'scrollTo', 'set', 'showMsg', 'showStatus', 'uiGet', 'uiWatch', 'watchUrlHash',\n    ]\n\n    /** @type {{[key: string]: string}} Managed uibuilder variables */\n    #managedVars = {}\n\n    // What status variables to show via showStatus()\n    #showStatus = {\n        online: { 'var': 'online', 'label': 'Online?', 'description': 'Is the browser online?', },\n        ioConnected: { 'var': 'ioConnected', 'label': 'Socket.IO connected?', 'description': 'Is Socket.IO connected?', },\n        connectedNum: { 'var': 'connectedNum', 'label': '# reconnections', 'description': 'How many times has Socket.IO had to reconnect since last page load?', },\n\n        clientId: { 'var': 'clientId', 'label': 'Client ID', 'description': 'Static client unique id set in Node-RED. Only changes when browser is restarted.', },\n        tabId: { 'var': 'tabId', 'label': 'Browser tab ID', 'description': 'Static unique id for the browser\\'s current tab', },\n        cookies: { 'var': 'cookies', 'label': 'Cookies', 'description': 'Cookies set in Node-RED', },\n        httpNodeRoot: { 'var': 'httpNodeRoot', 'label': 'httpNodeRoot', 'description': 'From Node-RED\\' settings.js, affects URL\\'s. May be wrong for pages in sub-folders', },\n        pageName: { 'var': 'pageName', 'label': 'Page name', 'description': 'Actual name of this page', },\n\n        ioNamespace: { 'var': 'ioNamespace', 'label': 'SIO namespace', 'description': 'Socket.IO namespace - unique to each uibuilder node instance', },\n        // ioPath: { 'var': 'ioPath', 'label': 'SIO path', 'description': '', }, // no longer needed in the modern client\n        socketError: { 'var': 'socketError', 'label': 'Socket error', 'description': 'If the Socket.IO connection has failed, says why', },\n\n        msgsSent: { 'var': 'msgsSent', 'label': '# msgs sent', 'description': 'How many standard messages have been sent to Node-RED?', },\n        msgsReceived: { 'var': 'msgsReceived', 'label': '# msgs received', 'description': 'How many standard messages have been received from Node-RED?', },\n        msgsSentCtrl: { 'var': 'msgsSentCtrl', 'label': '# control msgs sent', 'description': 'How many control messages have been sent to Node-RED?', },\n        msgsCtrlReceived: { 'var': 'msgsCtrlReceived', 'label': '# control msgs received', 'description': 'How many control messages have been received from Node-RED?', },\n        originator: { 'var': 'originator', 'label': 'Node Originator', 'description': 'If the last msg from Node-RED was from a `uib-sender` node, this will be its node id so that messasges can be returned to it', },\n        topic: { 'var': 'topic', 'label': 'Default topic', 'description': 'Optional default topic to be included in outgoing standard messages', },\n\n        started: { 'var': 'started', 'label': 'Has uibuilder client started?', 'description': 'Whether `uibuilder.start()` ran successfully. This should self-run and should not need to be run manually', },\n        version: { 'var': 'version', 'label': 'uibuilder client version', 'description': 'The version of the loaded uibuilder client library', },\n        serverTimeOffset: { 'var': 'serverTimeOffset', 'label': 'Server time offset (Hrs)', 'description': 'The number of hours difference between the Node-red server and the client', },\n    }\n\n    // Track ui observers (see uiWatch)\n    #uiObservers = {}\n\n    //#endregion\n\n    //#region public class vars\n\n    // TODO Move to proper getters\n    //#region ---- Externally read-only (via .get method) ---- //\n    // version - moved to _meta\n    /** Client ID set by uibuilder on connect */\n    clientId = ''\n    /** The collection of cookies provided by uibuilder */\n    cookies = {}\n    /** Copy of last control msg object received from sever */\n    ctrlMsg = {}\n    /** Is Socket.IO client connected to the server? */\n    ioConnected = false\n    // Is the browser tab containing this page visible or not?\n    isVisible = false\n    // Remember the last page (re)load/navigation type: navigate, reload, back_forward, prerender\n    lastNavType = ''\n    /** Last std msg received from Node-RED */\n    msg = {}\n    /** number of messages sent to server since page load */\n    msgsSent = 0\n    /** number of messages received from server since page load */\n    msgsReceived = 0\n    /** number of control messages sent to server since page load */\n    msgsSentCtrl = 0\n    /** number of control messages received from server since page load */\n    msgsCtrlReceived = 0\n    /** Is the client online or offline? */\n    online = navigator.onLine\n    /** last control msg object sent via uibuilder.send() @since v2.0.0-dev3 */\n    sentCtrlMsg = {}\n    /** last std msg object sent via uibuilder.send() */\n    sentMsg = {}\n    /** placeholder to track time offset from server, see fn socket.on(ioChannels.server ...) */\n    serverTimeOffset = null\n    /** placeholder for a socket error message */\n    socketError = null\n    // tab identifier from session storage\n    tabId = ''\n    // Actual name of current page (set in constructor)\n    pageName = null\n    // Is the DOMPurify library loaded? Updated in start()\n    purify = false\n    // Is the Markdown-IT library loaded? Updated in start()\n    markdown = false\n    // Current URL hash. Initial set is done from start->watchHashChanges via a set to make it watched\n    urlHash = location.hash\n    //#endregion ---- ---- ---- ---- //\n\n    // TODO Move to proper getters/setters\n    //#region ---- Externally Writable (via .set method, read via .get method) ---- //\n    /** Default originator node id - empty string by default\n     * @type {string}\n     */\n    originator = ''\n    /** Default topic - used by send if set and no topic provided\n     * @type {(string|undefined)}\n     */\n    topic = undefined\n    //#endregion ---- ---- ---- ---- //\n\n    //#region ---- These are unlikely to be needed externally: ----\n    autoSendReady = true\n    httpNodeRoot = '' // Node-RED setting (via cookie)\n    ioNamespace = ''\n    ioPath = ''\n    retryFactor = 1.5       // starting delay factor for subsequent reconnect attempts\n    retryMs = 2000          // starting retry ms period for manual socket reconnections workaround\n    storePrefix = 'uib_'    // Prefix for all uib-related localStorage\n    started = false\n    // NOTE: These can only change when a client (re)connects\n    socketOptions = {\n        path: this.ioPath,\n        transports: ['polling', 'websocket'],\n        // Using callback so that they are updated automatically on (re)connect\n        // Only put things in here that will be valid for a websocket connected session\n        auth: (cb) => {\n            cb({ // eslint-disable-line n/no-callback-literal\n                clientVersion: version,\n                clientId: this.clientId,\n                pathName: window.location.pathname,\n                urlParams: Object.fromEntries(new URLSearchParams(location.search)),\n                pageName: this.pageName,\n                tabId: this.tabId,\n                lastNavType: this.lastNavType,\n                connectedNum: ++this.connectedNum,\n                // Used to calculate the diff between the server and client connection timestamps - reported if >1 minute\n                browserConnectTimestamp: (new Date()).toISOString(),\n            })\n        },\n        transportOptions: {\n            // Can only set headers when polling\n            polling: {\n                extraHeaders: {\n                    'x-clientid': `${Uib._meta.displayName}; ${Uib._meta.type}; ${Uib._meta.version}; ${this.clientId}`,\n                }\n            },\n        },\n    }\n    //#endregion -- not external --\n\n    //#endregion --- End of variables ---\n\n    //#region ------- Getters and Setters ------- //\n\n    // Change logging level dynamically (affects both console. and print.)\n    set logLevel(level) { logLevel = level; console.log('%c\u2757 info%c [logLevel]', `${LOG_STYLES.level} ${LOG_STYLES.info.css}`, `${LOG_STYLES.head} ${LOG_STYLES.info.txtCss}`, `Set to ${level} (${LOG_STYLES.names[level]})`) /* changeLogLevel(level)*/ }\n    get logLevel() { return logLevel }\n\n    get meta() { return Uib._meta }\n\n    /** Function to set uibuilder properties to a new value - works on any property except _* or #*\n     * Also triggers any event listeners.\n     * Example: this.set('msg', {topic:'uibuilder', payload:42});\n     * @param {string} prop Any uibuilder property who's name does not start with a _ or #\n     * @param {*} val The set value of the property or a string declaring that a protected property cannot be changed\n     * @param {boolean} [store] If true, the variable is also saved to the browser localStorage if possible\n     * @param {boolean} [autoload] If true & store is true, on load, uib will try to restore the value from the store automatically\n     * @returns {*} Input value\n     */\n    set(prop, val, store = false, autoload = false) {\n        // Check for excluded properties - we don't want people to set these\n        // if (this.#excludedSet.indexOf(prop) !== -1) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:set', `Cannot use set() on protected property \"${prop}\"`)()\n            return `Cannot use set() on protected property \"${prop}\"`\n        }\n\n        // We must add the var to the uibuilder object\n        this[prop] = val\n\n        // Keep track of all managed variables\n        this.#managedVars[prop] = prop\n\n        // If requested, save to store\n        if (store === true) this.setStore(prop, val, autoload)\n\n        log('trace', 'Uib:set', `prop set - prop: ${prop}, val: `, val, ` store: ${store}, autoload: ${autoload}`)()\n\n        // Trigger this prop's event callbacks (listeners which are set by this.onChange)\n        // this.emit(prop, val)\n\n        // trigger an event on the prop name, pass both the name and value to the event details\n        this._dispatchCustomEvent('uibuilder:propertyChanged', { 'prop': prop, 'value': val, 'store': store, 'autoload': autoload })\n\n        return val\n    }\n\n    /** Function to get the value of a uibuilder property\n     * Example: uibuilder.get('msg')\n     * @param {string} prop The name of the property to get as long as it does not start with a _ or #\n     * @returns {*|undefined} The current value of the property\n     */\n    get(prop) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:get', `Cannot use get() on protected property \"${prop}\"`)()\n            return\n        }\n        if (prop === 'version') return Uib._meta.version\n        if (prop === 'msgsCtrl') return this.msgsCtrlReceived\n        if (prop === 'reconnections') return this.connectedNum\n        if (this[prop] === undefined) {\n            log('warn', 'Uib:get', `get() - property \"${prop}\" is undefined`)()\n        }\n        return this[prop]\n    }\n\n    /** Write to localStorage if possible. console error output if can't write\n     * Also uses this.storePrefix\n     * @example\n     *   uibuilder.setStore('fred', 42)\n     *   console.log(uibuilder.getStore('fred'))\n     * @param {string} id localStorage var name to be used (prefixed with 'uib_')\n     * @param {*} value value to write to localstore\n     * @param {boolean} [autoload] If true, on load, uib will try to restore the value from the store\n     * @returns {boolean} True if succeeded else false\n     */\n    setStore(id, value, autoload = false) {\n        let autoVars = {}\n        if (autoload === true) {\n            try {\n                autoVars = this.getStore('_uibAutoloadVars') || {}\n            } catch (e) {}\n        }\n        if (typeof value === 'object') {\n            try {\n                value = JSON.stringify(value)\n            } catch (e) {\n                log('error', 'Uib:setStore', 'Cannot stringify object, not storing. ', e)()\n                return false\n            }\n        }\n        try {\n            localStorage.setItem(this.storePrefix + id, value)\n            if (autoload) {\n                autoVars[id] = id\n                try {\n                    localStorage.setItem(this.storePrefix + '_uibAutoloadVars', JSON.stringify(autoVars))\n                } catch (e) {\n                    log('error', 'Uib:setStore', 'Cannot save autoload list. ', e)()\n                }\n            }\n            this._dispatchCustomEvent('uibuilder:propertyStored', { 'prop': id, 'value': value, 'autoload': autoload })\n            return true\n        } catch (e) {\n            log('error', 'Uib:setStore', 'Cannot write to localStorage. ', e)()\n            return false\n        }\n    } // --- end of setStore --- //\n\n    /** Attempt to get and re-hydrate a key value from localStorage\n     * Note that all uib storage is automatically prefixed using this.storePrefix\n     * @param {*} id The key of the value to attempt to retrieve\n     * @returns {*|null|undefined} The re-hydrated value of the key or null if key not found, undefined on error\n     */\n    getStore(id) {\n        try {\n            // @ts-ignore\n            return JSON.parse(localStorage.getItem(this.storePrefix + id))\n        } catch (e) { }\n        try {\n            return localStorage.getItem(this.storePrefix + id)\n        } catch (e) {\n            return undefined\n        }\n    }\n\n    /** Remove a given id from the uib keys in localStorage\n     * @param {*} id The key to remove\n     */\n    removeStore(id) {\n        try {\n            localStorage.removeItem(this.storePrefix + id)\n        } catch (e) { }\n    }\n\n    /** Returns a list of uibuilder properties (variables) that can be watched with onChange\n     * @returns {{[key: string]: string}} List of uibuilder managed variables\n     */\n    getManagedVarList() {\n        return this.#managedVars\n    }\n\n    getWatchedVars() {\n        return Object.keys(this.#propChangeCallbacks)\n    }\n\n    //#endregion ------- -------- ------- //\n\n    //#region ------- Our own event handling system ---------- //\n\n    // TODO Add option to send event details back to Node-RED as uib ctrl msg\n    /** Standard fn to create a custom event with details & dispatch it\n     * @param {string} title The event name\n     * @param {*} details Any details to pass to event output\n     */\n    _dispatchCustomEvent(title, details) {\n        const event = new CustomEvent(title, { detail: details })\n        document.dispatchEvent(event)\n    }\n\n    // See the this.#propChangeCallbacks & msgRecvdByTopicCallbacks private vars\n\n    /** Register on-change event listeners for uibuilder tracked properties\n     * Make it possible to register a function that will be run when the property changes.\n     * Note that you can create listeners for non-existant properties\n     * @example: uibuilder.onChange('msg', (msg) => { console.log('uibuilder.msg changed! It is now: ', msg) })\n     *\n     * @param {string} prop The property of uibuilder that we want to monitor\n     * @param {Function} callback The function that will run when the property changes, parameter is the new value of the property after change\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelChange if you need to remove a listener\n     */\n    onChange(prop, callback) {\n        // Note: Property does not have to exist yet\n\n        // console.debug(`[Uib:onchange] pushing new callback (event listener) for property: ${prop}`)\n\n        // Create a new array or add to the array of callback functions for the property in the events object\n        // if (this.#events[prop]) {\n        //     this.#events[prop].push(callback)\n        // } else {\n        //     this.#events[prop] = [callback]\n        // }\n\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#propChangeCallbacks[prop]) this.#propChangeCallbacks[prop] = { _nextRef: 1 }\n        else this.#propChangeCallbacks[prop]._nextRef++\n\n        const nextCbRef = this.#propChangeCallbacks[prop]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const propChangeCallback = this.#propChangeCallbacks[prop][nextCbRef] = function propChangeCallback(e) {\n            // If the prop name matches the 1st arg in the onChange fn:\n            if (prop === e.detail.prop) {\n                const value = e.detail.value\n                // console.warn('[Uib:onChange:evt] uibuilder:propertyChanged. ', e.detail)\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(value, value)\n            }\n        }\n\n        document.addEventListener('uibuilder:propertyChanged', propChangeCallback)\n\n        return nextCbRef\n    } // ---- End of onChange() ---- //\n\n    cancelChange(prop, cbRef) {\n        document.removeEventListener('uibuilder:propertyChanged', this.#propChangeCallbacks[prop][cbRef])\n        delete this.#propChangeCallbacks[prop][cbRef]\n        // this.#propChangeCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Register a change callback for a specific msg.topic\n     * Similar to onChange but more convenient if needing to differentiate by msg.topic.\n     * @example: let otRef = uibuilder.onTopic('mytopic', function(){ console.log('Received a msg with msg.topic=`mytopic`. msg: ', this) })\n     * To cancel a change listener: uibuilder.cancelTopic('mytopic', otRef)\n     *\n     * @param {string} topic The msg.topic we want to listen for\n     * @param {Function} callback The function that will run when an appropriate msg is received. `this` inside the callback as well as the cb's single argument is the received msg.\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelTopic if you need to remove a listener\n     */\n    onTopic(topic, callback) {\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#msgRecvdByTopicCallbacks[topic]) this.#msgRecvdByTopicCallbacks[topic] = { _nextRef: 1 }\n        else this.#msgRecvdByTopicCallbacks[topic]._nextRef++\n\n        const nextCbRef = this.#msgRecvdByTopicCallbacks[topic]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const msgRecvdEvtCallback = this.#msgRecvdByTopicCallbacks[topic][nextCbRef] = function msgRecvdEvtCallback(e) {\n            const msg = e.detail\n            // console.log('[Uib:onTopic:evt] uibuilder:stdMsgReceived where topic matches. ', e.detail)\n            if (msg.topic === topic) {\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(msg, msg)\n            }\n        }\n\n        document.addEventListener('uibuilder:stdMsgReceived', msgRecvdEvtCallback)\n\n        return nextCbRef\n    }\n\n    cancelTopic(topic, cbRef) {\n        document.removeEventListener('uibuilder:stdMsgReceived', this.#msgRecvdByTopicCallbacks[topic][cbRef])\n        delete this.#msgRecvdByTopicCallbacks[topic][cbRef]\n        // this.#msgRecvdCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Trigger event listener for a given property\n     * Called when uibuilder.set is used\n     *\n     * @param {*} prop The property for which to run the callback functions\n     * arguments: Additional arguments contain the value to pass to the event callback (e.g. newValue)\n     */\n    // emit(prop) {\n    //     var evt = this.#events[prop]\n    //     if (!evt) {\n    //         return\n    //     }\n    //     var args = Array.prototype.slice.call(arguments, 1)\n    //     for (var i = 0; i < evt.length; i++) {\n    //         evt[i].apply(this, args)\n    //     }\n    //     log('trace', 'Uib:emit', `${evt.length} listeners run for prop ${prop} `)()\n    // }\n\n    /** Forcibly removes all event listeners from the events array\n     * Use if you need to re-initialise the environment\n     */\n    // clearEventListeners() {\n    //     this.#events = []\n    // } // ---- End of clearEventListeners() ---- //\n\n    /** Clear a single property event listeners\n     * @param {string} prop The property of uibuilder for which we want to clear the event listener\n     */\n    // clearListener(prop) {\n    //     if (this.#events[prop]) delete this.#events[prop]\n    // }\n\n    //#endregion ---------- End of event handling system ---------- //\n\n    //#region ------- General Utility Functions -------- //\n\n    /** Check supplied msg from server for a timestamp - if received, work out & store difference to browser time\n     * @param {object} receivedMsg A message object recieved from Node-RED\n     * @returns {void} Updates self.serverTimeOffset if different to previous value\n     */\n    _checkTimestamp(receivedMsg) {\n        if (Object.prototype.hasOwnProperty.call(receivedMsg, 'serverTimestamp')) {\n            const serverTimestamp = new Date(receivedMsg.serverTimestamp)\n            // @ts-ignore\n            const offset = Math.round(((new Date()) - serverTimestamp) / 3600000) // in ms /3.6m to get hours\n            if (offset !== this.serverTimeOffset) {\n                log('trace', `Uib:checkTimestamp:${this._ioChannels.server} (server)`, `Offset changed to: ${offset} from: ${this.serverTimeOffset}`)()\n                this.set('serverTimeOffset', offset)\n            }\n        }\n    }\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {*} Selected HTML element or null\n     */\n    $(cssSelector) {\n        /** @type {*} Some kind of HTML element */\n        let el = document.querySelector(cssSelector)\n\n        if (!el) {\n            log(1, 'Uib:$', `No element found for CSS selector ${cssSelector}`)()\n            return null\n        }\n\n        if ( el.nodeName === 'TEMPLATE' ) {\n            el = el.content.firstElementChild\n            if (!el) {\n                log(0, 'Uib:$', `Template selected for CSS selector ${cssSelector} but it is empty`)()\n                return null\n            }\n        }\n\n        return el\n    }\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {*} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {Array} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$(cssSelector) {\n        return Array.from(document.querySelectorAll(cssSelector))\n    }\n\n    /** Set the default originator. Set to '' to ignore. Used with uib-sender.\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    setOriginator(originator = '') {\n        this.set('originator', originator)\n    } // ---- End of setOriginator ---- //\n\n    /** HTTP Ping/Keep-alive - makes a call back to uibuilder's ExpressJS server and receives a 204 response\n     * Can be used to keep sessions alive.\n     * @example\n     *   uibuilder.setPing(2000) // repeat every 2 sec. Re-issue with ping(0) to turn off repeat.\n     *   uibuilder.onChange('ping', function(data) {\n     *      console.log('pinger', data)\n     *   })\n     * @param {number} ms Repeat interval in ms\n     */\n    setPing(ms = 0) {\n        const oReq = new XMLHttpRequest()\n        oReq.addEventListener('load', () => {\n            const headers = (oReq.getAllResponseHeaders()).split('\\r\\n')\n            const elapsedTime = Number(new Date()) - Number((oReq.responseURL.split('='))[1])\n            this.set('ping', {\n                success: !!((oReq.status === 201) || (oReq.status === 204)), // true if one of the listed codes else false\n                status: oReq.status,\n                headers: headers,\n                url: oReq.responseURL,\n                elapsedTime: elapsedTime,\n            })\n        })\n\n        if (this.#pingInterval) {\n            clearInterval(this.#pingInterval)\n            this.#pingInterval = undefined\n        }\n\n        oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n        oReq.send()\n\n        if (ms > 0) {\n            this.#pingInterval = setInterval(() => {\n                oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n                oReq.send()\n            }, ms)\n        }\n    } // ---- End of ping ---- //\n\n    log() {\n        log(...arguments)()\n    }\n\n    /** Convert JSON to Syntax Highlighted HTML\n     * @param {object} json A JSON/JavaScript Object\n     * @returns {html} Object reformatted as highlighted HTML\n     */\n    syntaxHighlight(json) {\n        return syntaxHighlight(json)\n    } // --- End of syntaxHighlight --- //\n\n    /** Copies a uibuilder variable to the browser clipboard\n     * @param {string} varToCopy The name of the uibuilder variable to copy to the clipboard\n     */\n    copyToClipboard(varToCopy) {\n        let data = ''\n        try {\n            console.log(this.get(varToCopy), JSON.stringify(this.get(varToCopy)))\n            data = JSON.stringify(this.get(varToCopy))\n        } catch (e) {\n            log('error', 'copyToClipboard', `Could not copy \"${varToCopy}\" to clipboard.`, e.message)()\n        }\n        navigator.clipboard.writeText(data)\n    } // --- End of copyToClipboard --- //\n\n    /** DEPRECATED FOR NOW - wasn't working properly.\n     * Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.\n     * Requires IntersectionObserver (available to all mainstream browsers from early 2019)\n     * Automatically sends a msg back to Node-RED.\n     * Requires the element to already exist.\n     */\n    elementIsVisible() {\n        const info = 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'\n        log('error', 'uib:elementIsVisible', info)()\n        this.send({payload: 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'})\n        return false\n    } // --- End of elementIsVisible --- //\n\n    /** Does the chosen CSS Selector currently exist?\n     * Automatically sends a msg back to Node-RED unless turned off.\n     * @param {string} cssSelector Required. CSS Selector to examine for visibility\n     * @param {boolean} [msg] Optional, default=true. If true also sends a message back to Node-RED\n     * @returns {boolean} True if the element exists\n     */\n    elementExists(cssSelector, msg = true) {\n        const el = document.querySelector(cssSelector)\n\n        let exists = false\n        if (el !== null) exists = true\n\n        if (msg === true) {\n            this.send({\n                payload: exists,\n                info: `Element \"${cssSelector}\" ${exists ? 'exists' : 'does not exist'}`\n            })\n        }\n\n        return exists\n    } // --- End of elementExists --- //\n\n    /** Only keep the URL Hash & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return '#' + url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Set up an event listener to watch for hash changes\n     * and set the watchable urlHash variable\n     */\n    _watchHashChanges() {\n        this.set('urlHash', location.hash)\n        window.addEventListener('hashchange', (event) => {\n            this.set('urlHash', location.hash)\n            if (this.#sendUrlHash === true) {\n                this.send({ topic: 'hashChange', payload: location.hash, newHash: this.keepHashFromUrl(event.newURL), oldHash: this.keepHashFromUrl(event.oldURL) })\n            }\n        })\n    }\n\n    /** Returns true/false or a default value for truthy/falsy and other values\n     * @param {string|number|boolean|*} val The value to test\n     * @param {any} deflt Default value to use if the value is not truthy/falsy\n     * @returns {boolean|any} The truth! Or the default\n     */\n    truthy(val, deflt) {\n        let ret\n        if (['on', 'On', 'ON', 'true', 'True', 'TRUE', '1', true, 1].includes(val)) ret = true\n        else if (['off', 'Off', 'OFF', 'false', 'False', 'FALSE', '0', false, 0].includes(val)) ret = false\n        else ret = deflt\n        return ret\n    }\n\n    /** Turn on/off/toggle sending URL hash changes back to Node-RED\n     * @param {string|number|boolean|undefined} [toggle] Optional on/off/etc\n     * @returns {boolean} True if we will send a msg to Node-RED on a hash change\n     */\n    watchUrlHash(toggle) {\n        this.#sendUrlHash = this.truthy(toggle, this.#sendUrlHash !== true)\n        return this.#sendUrlHash\n    }\n\n    /** Navigate to a new page or a new route (hash)\n     * @param {string} url URL to navigate to. Can be absolute or relative (to current page) or just a hash for a route change\n     * @returns {Location} The new window.location string\n     */\n    navigate(url) {\n        if (url) window.location.href = url\n        return window.location\n    }\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- UI handlers --------- //\n\n    //#region -- Direct to _ui --\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        _ui.ui(json)\n    }\n\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        _ui.replaceSlot(el, component)\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        _ui.replaceSlotMarkdown(el, component)\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        return _ui.convertMarkdown(mdText)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        return _ui.sanitiseHTML(html)\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        _ui.loadScriptSrc(url)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        _ui.loadStyleSrc(url)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        _ui.loadScriptTxt(textFn)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        _ui.loadStyleTxt(textFn)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) {\n        _ui.showDialog(type, ui, msg)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        _ui.loadui(url)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        return _ui.uiGet(cssSelector, propName)\n    }\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     */\n    async include(url, uiOptions) {\n        _ui.include(url, uiOptions)\n    }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} component Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, component) {\n        _ui.uiEnhanceElement(el, component)\n    }\n\n    //#endregion -- direct to _ui --\n\n    /** * Show/hide a display card on the end of the visible HTML that will dynamically display the last incoming msg from Node-RED\n     * The card has the id `uib_last_msg`. Updates are done from a listener set up in the start function.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showMsg(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowMsg\n        this.#isShowMsg = showHide\n        let slot = 'Waiting for a message from Node-RED'\n\n        if (this.msg && Object.keys(this.msg).length > 0) {\n            slot = this.syntaxHighlight(this.msg)\n        }\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_last_msg_wrap',\n                ],\n            })\n        } else {\n            _ui._uiReplace({\n                components: [\n                    {\n                        type: 'div',\n                        id: 'uib_last_msg_wrap',\n                        parent: parent,\n                        attributes: {\n                            title: 'Last message from Node-RED',\n                        },\n                        components: [\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.copyToClipboard(\"msg\")',\n                                    class: 'compact',\n                                    style: 'right:3em;',\n                                },\n                                slot: '\uD83D\uDCCB',\n                            },\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.showMsg()',\n                                    class: 'compact',\n                                    style: 'right:.5em;',\n                                },\n                                slot: '\u26D4',\n                            },\n                            {\n                                type: 'pre',\n                                id: 'uib_last_msg',\n                                // parent: 'uib_last_msg_wrap',\n                                attributes: {\n                                    class: 'syntax-highlight',\n                                },\n                                slot: slot,\n                            },\n                        ],\n                    },\n                ],\n            })\n        }\n\n        return showHide\n    }\n\n    /** Show a browser notification if possible.\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * @example uibuilder.notify( 'My simple message to the user' )\n     * @example uibuilder.notify( {topic: 'My Title', payload: 'My simple message to the user'} )\n     * @example uibuilder.notify( {title: 'My Title', body: 'My simple message to the user'} )\n     * @example // If config.return = true, a promise is returned.\n     * // The resolved promise is only returned if the notification is clicked by the user.\n     * // Can be used to send the response back to Node-RED\n     * uibuilder.notify(notifyConfig).then( res => uibuilder.eventSend(res) )\n     * @ref https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config data or simple message string\n     * @returns {Promise<Event>|null} A promise that resolves to the click event or null\n     */\n    notify(config) {\n        if (config.return) return _ui.notification(config)\n\n        _ui.notification(config)\n            .then( res => { // eslint-disable-line promise/always-return\n                log('info', 'Uib:notification', 'Notification completed event', res)()\n                // if (config.return) return res\n            })\n            .catch( err => {\n                log('error', 'Uib:notification', 'Notification error event', err)()\n            })\n        return null\n    }\n\n    /** Scroll the page\n     * https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollIntoView\n     * @param {string} [cssSelector] Optional. If not set, scrolls to top of page.\n     * @param {{block:(string|undefined),inline:(string|undefined),behavior:(string|undefined)}} [opts] Optional. DOM scrollIntoView options\n     * @returns {boolean} True if element was found, false otherwise\n     */\n    scrollTo(cssSelector, opts) {\n        // @ts-ignore\n        if (!opts) opts = {}\n        if (!cssSelector || cssSelector === 'top'  || cssSelector === 'start') cssSelector = 'body'\n        else if (cssSelector === 'bottom' || cssSelector === 'end') {\n            cssSelector = 'body'\n            opts.block = 'end'\n        }\n        const el = this.$(cssSelector)\n        if (el) {\n            el.scrollIntoView(opts)\n            return true\n        }\n        return false\n    }\n\n    /** Show/hide a display card on the end of the visible HTML that will dynamically display the current status of the uibuilder client\n     * The card has the id `uib_status`.\n     * The display is updated by an event listener created in the class constructor.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showStatus(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowStatus\n        this.#isShowStatus = showHide\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_status',\n                ],\n            })\n            return showHide\n        }\n\n        const root = {\n            components: [\n                {\n                    type: 'div',\n                    id: 'uib_status',\n                    parent: parent,\n                    attributes: {\n                        title: 'Current status of the uibuilder client',\n                        class: 'text-smaller',\n                    },\n                    components: [\n                        {\n                            'type': 'table',\n                            'components': [\n                                {\n                                    'type': 'tbody',\n                                    'components': []\n                                }\n                            ]\n                        }\n                    ]\n                }\n            ]\n        }\n        const details = root.components[0].components[0].components[0].components\n\n        Object.values(this.#showStatus).forEach( entry => {\n            details.push({\n                'type': 'tr',\n                'attributes': {\n                    title: entry.description,\n                },\n                'components': [\n                    {\n                        'type': 'th',\n                        'slot': entry.label,\n                    },\n                    {\n                        'type': 'td',\n                        'attributes': {\n                            'data-varType': entry.var,\n                        },\n                        'slot': entry.var === 'version' ? Uib._meta.version : JSON.stringify(this[entry.var]),\n                    }\n                ],\n            })\n        })\n\n        _ui._uiReplace(root)\n\n        return showHide\n    }\n\n    /** Use the Mutation Observer browser API to watch for changes to a single element on the page.\n     * OMG! It is sooo hard to turn the data into something that successfully serialises so it can be sent back to Node-RED!\n     * NB: Each cssSelector creates a unique watcher. Sending the same selector overwrites the previous one.\n     * @param {string} cssSelector A CSS Selector that selects the element to watch for changes\n     * @param {boolean|\"toggle\"} [startStop] true=start watching the DOM, false=stop. Default='toggle'\n     * @param {boolean} [send] true=Send changes to Node-RED, false=Don't send. Default=true\n     * @param {boolean} [showLog] true=Output changes to log, false=stop. Default=true. Log level is 2 (Info)\n     * @returns {boolean} True if the watch is on, false otherwise\n     */\n    uiWatch(cssSelector, startStop = 'toggle', send = true, showLog = true) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.querySelector(cssSelector)\n        if (!targetNode) {\n            log('warn', 'uibuilder.module.js:uiWatch', `CSS Selector '${cssSelector}' not found.`)()\n            return false\n        }\n\n        if (startStop === 'toggle' || startStop === undefined || startStop === null) {\n            if (this.#uiObservers[cssSelector]) startStop = false\n            else startStop = true\n        }\n\n        // Need a ref to the Uib this\n        const that = this\n\n        if (startStop === true) {\n            // Create an observer instance\n            this.#uiObservers[cssSelector] = new MutationObserver( function( mutationList /* , observer */ ) {\n                const out = []\n\n                mutationList.forEach( mu => {\n                    // console.log({ mu })\n                    const oMu = {\n                        type: mu.type,\n                        oldValue: mu.oldValue !== null ? mu.oldValue : undefined,\n                    }\n\n                    if (mu.addedNodes.length > 0) {\n                        oMu.addedNodes = []\n                        mu.addedNodes.forEach( (an, i) => {\n                            oMu.addedNodes.push(_ui.nodeGet(mu.addedNodes[i]))\n                        })\n                    }\n\n                    if (mu.removedNodes.length > 0) {\n                        oMu.removedNodes = []\n                        mu.removedNodes.forEach( (an, i) => {\n                            oMu.removedNodes.push(_ui.nodeGet(mu.removedNodes[i]))\n                        })\n                    }\n\n                    if ( mu.type === 'attributes' ) {\n                        oMu.attributeName = mu.attributeName\n                        // @ts-ignore\n                        oMu.newValue = mu.target.attributes[mu.attributeName].value\n                    }\n\n                    out.push(oMu)\n                })\n\n                // Custom event\n                that._dispatchCustomEvent('uibuilder:domChange', out)\n                // Send a msg back to node-red\n                if (send === true) {\n                    that.send({\n                        _ui: {\n                            cssSelector: cssSelector,\n                            uiChanges: out\n                        },\n                        topic: that.topic || `DOM Changes for '${cssSelector}'`,\n                    })\n                }\n                // Log to info\n                if (showLog === true) {\n                    log('info', 'uibuilder.module.js:uiWatch', `DOM Changes for '${cssSelector}'`, { uiChanges: out }, { mutationList })()\n                }\n            } )\n\n            // Start observing the target node for configured mutations\n            this.#uiObservers[cssSelector].observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:uiWatch', `Started Watching DOM changes for '${cssSelector}'`)()\n        } else {\n            this.#uiObservers[cssSelector].disconnect()\n            delete this.#uiObservers[cssSelector]\n            log('trace', 'uibuilder.module.js:uiWatch', `Stopped Watching DOM changes for '${cssSelector}'`)()\n        }\n\n        return startStop\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- HTML cache and DOM watch --------- //\n\n    /** Clear the saved DOM from localStorage */\n    clearHtmlCache() {\n        this.removeStore('htmlCache')\n        log('trace', 'uibuilder.module.js:clearHtmlCache', 'HTML cache cleared')()\n    }\n\n    /** Restore the complete DOM (the whole web page) from browser localStorage if available */\n    restoreHtmlFromCache() {\n        // Is the html cached? If so, restore it\n        const htmlCache = this.getStore('htmlCache')\n        if (htmlCache) {\n            const targetNode = document.getElementsByTagName('html')[0]\n            // Restore the entire HTML\n            targetNode.innerHTML = htmlCache\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'Restored HTML from cache')()\n        } else {\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'No cache to restore')()\n        }\n    }\n\n    /** Save the current DOM state to browser localStorage.\n     * localStorage is persistent and so can be recovered even after a browser restart.\n     */\n    saveHtmlCache() {\n        // Save the updated entire HTML in localStorage\n        this.setStore('htmlCache', document.documentElement.innerHTML)\n    }\n\n    /** Use the Mutation Observer browser API to watch for and save changes to the HTML\n     * Once the observer is created, it will be reused.\n     * Sending true or undefined will turn on the observer, false turns it off.\n     * saveHtmlCache is called whenever anything changes in the dom. This allows\n     * users to call restoreHtmlFromCache() on page load if desired to completely reload\n     * to the last saved state.\n     * @param {boolean} startStop true=start watching the DOM, false=stop\n     */\n    watchDom(startStop) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.documentElement\n\n        // Need a ref to the Uib this\n        const that = this\n\n        // Create an observer instance\n        if (!this._htmlObserver) {\n            this._htmlObserver = new MutationObserver( function(/* mutationList, observer */) {\n                // We don't need to know the details - so kill off any outstanding mutation records\n                this.takeRecords()\n                // Save the updated entire HTML in localStorage\n                that.saveHtmlCache()\n            } )\n        }\n\n        if (startStop === true || startStop === undefined) {\n            // Start observing the target node for configured mutations\n            this._htmlObserver.observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:watchDom', 'Started Watching and saving DOM changes')()\n        } else {\n            this._htmlObserver.disconnect()\n            log('trace', 'uibuilder.module.js:watchDom', 'Stopped Watching and saving DOM changes')()\n        }\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- Message Handling (To/From Node-RED) -------- //\n\n    /** Internal send fn. Send a standard or control msg back to Node-RED via Socket.IO\n     * NR will generally expect the msg to contain a payload topic\n     * @param {object} msgToSend The msg object to send.\n     * @param {string} [channel=uiBuilderClient] The Socket.IO channel to use, must be in self.ioChannels or it will be ignored\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    _send(msgToSend, channel, originator = '') {\n        if (channel === null || channel === undefined) channel = this._ioChannels.client\n\n        // Make sure msgToSend is an object\n        if (channel === this._ioChannels.client) {\n            msgToSend = makeMeAnObject(msgToSend, 'payload')\n        } else if (channel === this._ioChannels.control) {\n            msgToSend = makeMeAnObject(msgToSend, 'uibuilderCtrl')\n            if (!Object.prototype.hasOwnProperty.call(msgToSend, 'uibuilderCtrl')) {\n                msgToSend.uibuilderCtrl = 'manual send'\n            }\n            // help remember where this came from as ctrl msgs can come from server or client\n            msgToSend.from = 'client'\n        }\n\n        /** since 2020-01-02 Added _socketId which should be the same as the _socketId on the server */\n        msgToSend._socketId = this._socket.id\n\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n\n        // Add the originator metadata if required\n        if (originator === '' && this.originator !== '') originator = this.originator\n        if (originator !== '') Object.assign(msgToSend, { '_uib': { 'originator': originator } })\n\n        // If the msg does not have a topic - see if we want to add one\n        if ( !Object.prototype.hasOwnProperty.call(msgToSend, 'topic') ) {\n            // From the default (`uibuilder.set('topic', 'some topic')`)\n            if (this.topic !== undefined && this.topic !== '') msgToSend.topic = this.topic\n            else {\n                // Did the last inbound msg have a topic?\n                if ( Object.prototype.hasOwnProperty.call(this, 'msg') && Object.prototype.hasOwnProperty.call(this.msg, 'topic') ) {\n                    msgToSend.topic = this.msg.topic\n                }\n            }\n        }\n\n        // If a standard send & _ui property exists, make sure to add _ui.from = 'client'\n        if (msgToSend._ui) msgToSend._ui.from = 'client'\n\n        // Track how many messages have been sent & last msg sent\n        let numMsgs\n        if (channel === this._ioChannels.client) {\n            this.set('sentMsg', msgToSend)\n            numMsgs = this.set('msgsSent', ++this.msgsSent)\n        } else if (channel === this._ioChannels.control) {\n            this.set('sentCtrlMsg', msgToSend)\n            numMsgs = this.set('msgsSentCtrl', ++this.msgsSentCtrl)\n        }\n        log('trace', 'Uib:_send', ` Channel '${channel}'. Sending msg #${numMsgs}`, msgToSend)()\n\n        this._socket.emit(channel, msgToSend)\n    } // --- End of Send Msg Fn --- //\n\n    /** Send a standard message to NR\n     * @example uibuilder.send({payload:'Hello'})\n     * @param {object} msg Message to send\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    send(msg, originator = '') {\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Send a control msg to NR\n     * @param {object} msg Message to send\n     */\n    sendCtrl(msg) {\n        this._send(msg, this._ioChannels.control)\n    }\n\n    /** Easily send a msg back to Node-RED on a DOM event\n     * @example In plain HTML/JavaScript\n     *    `<button id=\"button1\" name=\"button 1\" data-fred=\"jim\"></button>`\n     *    $('#button1').onclick = (evt) => {\n     *      uibuilder.eventSend(evt)\n     *    }\n     * @example\n     * In VueJS: `<b-button id=\"myButton1\" @click=\"doEvent\" data-something=\"hello\"></b-button>`\n     * In VueJS methods: `doEvent: uibuilder.eventSend,`\n     *\n     * All `data-` attributes will be passed back to Node-RED,\n     *    use them instead of arguments in the click function.\n     *    All target._ui custom properties are also passed back to Node-RED.\n     *\n     * @param {MouseEvent|any} domevent DOM Event object\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    eventSend(domevent, originator = '') { // eslint-disable-line sonarjs/cognitive-complexity\n        // @ts-ignore Handle case where vue messes up `this`\n        if ( this.$attrs ) {\n            log('error', 'Uib:eventSend', '`this` has been usurped by VueJS. Make sure that you wrap the call in a function: `doEvent: function (event) { uibuilder.eventSend(event) },`' )()\n            return\n        }\n        if (!domevent && !event) {\n            log('warn', 'Uib:eventSend', 'Neither the domevent nor the hidden event properties are set. You probably called this function directly rather than applying to an on click event.' )()\n            return\n        }\n        // Handle no argument, e.g. <button onClick=\"uibuilder.eventSend()\"> - event is a hidden variable when fn used in addEventListener\n        if (!domevent || !domevent.constructor) domevent = event\n\n        // The argument must be a DOM event\n        if ((!domevent.constructor.name.endsWith('Event')) || (!domevent.currentTarget)) {\n            log('warn', 'Uib:eventSend', `ARGUMENT NOT A DOM EVENT - use data attributes not function arguments to pass data. Arg Type: ${domevent.constructor.name}`, domevent)()\n            return\n        }\n\n        // Prevent default event action\n        domevent.preventDefault()\n\n        // The target element\n        const target = domevent.currentTarget\n\n        // Get target properties - only shows custom props not element default ones\n        const props = {}\n        Object.keys(target).forEach( key => {\n            if (key.startsWith('_')) return // Exclude private\n            props[key] = target[key]\n        })\n\n        // Attempt to get target attributs - can fail for certain target types\n        const ignoreAttribs = ['class', 'id', 'name']\n        let attribs\n        try {\n            attribs = Object.assign({},\n                ...Array.from(target.attributes,\n                    ( { name, value } ) => {\n                        if ( !ignoreAttribs.includes(name) ) {\n                            return ({ [name]: value })\n                        }\n                        return undefined\n                    }\n                )\n            )\n        } catch (e) {}\n\n        // If target embedded in a form, include the form data\n        let form\n        const frmVals = []\n        if ( target.form ) {\n            form = {}\n            form.valid = target.form.checkValidity()\n            Object.values(target.form).forEach( (frmEl, i) => {\n                const id = frmEl.id !== '' ? frmEl.id : (frmEl.name !== '' ? frmEl.name : `${i}-${frmEl.type}`)\n\n                // We must have both an element id (we may have forced one above) AND\n                // the element type MUST be not undefined - to allow for the extra properties added by frameworks such as Svelte\n                if (id !== '' && frmEl.type) {\n                    // Stupid HTML doesn't use value attrib for checkboxes. So override if value is set to default\n                    if ('checked' in frmEl && frmEl.value === 'on') frmEl.value = frmEl.checked.toString()\n\n                    frmVals.push( { key: id, val: frmEl.value } ) // simplified for addition to msg.payload\n\n                    form[id] = {\n                        'id': frmEl.id,\n                        'name': frmEl.name,\n                        'value': frmEl.value,\n                        'valid': frmEl.checkValidity(),\n                        'type': frmEl.type,\n                    }\n\n                    if (form[id].valid === false) {\n                        const v = frmEl.validity\n                        form[id].validity = {\n                            badInput: v.badInput === true ? v.badInput : undefined,\n                            customError: v.customError === true ? v.customError : undefined,\n                            patternMismatch: v.patternMismatch === true ? v.patternMismatch : undefined,\n                            rangeOverflow: v.rangeOverflow === true ? v.rangeOverflow : undefined,\n                            rangeUnderflow: v.rangeUnderflow === true ? v.rangeUnderflow : undefined,\n                            stepMismatch: v.stepMismatch === true ? v.stepMismatch : undefined,\n                            tooLong: v.tooLong === true ? v.tooLong : undefined,\n                            tooShort: v.tooShort === true ? v.tooShort : undefined,\n                            typeMismatch: v.typeMismatch === true ? v.typeMismatch : undefined,\n                            valueMissing: v.valueMissing === true ? v.valueMissing : undefined,\n                        }\n                    }\n\n                    if (frmEl.dataset) form[id].data = frmEl.dataset\n                }\n            })\n        }\n\n        // Check for CSS Classes\n        let classes\n        try {\n            classes = Array.from(target.classList)\n        } catch (e) {}\n\n        // Each `data-xxxx` attribute is added as a property\n        let payload = { ...target.dataset }\n\n        // Handle Notification events\n        let nprops\n        if ( Object.prototype.toString.call(target) === '[object Notification]') {\n            // Fixed payload for convenience\n            payload = `notification-${target.userAction}`\n            // Capture the notification properties\n            nprops = {\n                // userAction: target.userAction, // uib custom prop: click, close or error\n                actions: target.actions,\n                badge: target.badge,\n                body: target.body,\n                data: target.data,\n                dir: target.dir,\n                icon: target.icon,\n                image: target.image,\n                lang: target.lang,\n                renotify: target.renotify,\n                requireInteraction: target.requireInteraction,\n                silent: target.silent,\n                tag: target.tag,\n                timestamp: target.timestamp,\n                title: target.title,\n                vibrate: target.vibrate,\n            }\n        }\n        // console.log(Object.prototype.toString.call(target))\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            // - this may be an empty Object if no data attributes defined\n            payload: payload,\n\n            _ui: {\n                type: 'eventSend',\n                id: target.id !== '' ? target.id : undefined,\n                name: target.name !== '' ? target.name : undefined,\n                slotText: target.textContent ? target.textContent.substring(0, 255) : undefined,\n\n                form: form,\n                props: props,\n                attribs: attribs,\n                classes: classes,\n\n                notification: nprops,\n\n                event: domevent.type,\n                altKey: domevent.altKey,\n                ctrlKey: domevent.ctrlKey,\n                shiftKey: domevent.shiftKey,\n                metaKey: domevent.metaKey,\n\n                pointerType: domevent.pointerType,\n                nodeName: target.nodeName,\n\n                clientId: this.clientId,\n                pageName: this.pageName,\n                tabId: this.tabId,\n            }\n        }\n\n        if (frmVals.length > 0) {\n            frmVals.forEach( entry => {\n                msg.payload[entry.key] = entry.val\n            })\n        }\n\n        if (domevent.type === 'change') {\n            // Checkboxes don't have a value!!\n            msg._ui.newValue = msg.payload.value = 'checked' in target ? target.checked : domevent.target.value\n        }\n\n        log('trace', 'Uib:eventSend', 'Sending msg to Node-RED', msg)()\n        if (target.dataset && target.dataset.length === 0) log('warn', 'Uib:eventSend', 'No payload in msg. data-* attributes should be used.')()\n\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Easily send the entire DOM/HTML msg back to Node-RED\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     * @param {boolean} [send] If true (default) directly send response to Node-RED. Is false when calling from Node-RED as a command.\n     * @returns {string} The HTML as a string\n     */\n    htmlSend(originator = '', send = true) {\n        const out = `<!doctype html>\\n${document.documentElement.outerHTML}`\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            payload: out,\n            length: out.length,\n            topic: this.topic,\n        }\n\n        log('trace', 'Uib:htmlSend', 'Sending full HTML to Node-RED', msg)()\n\n        if (send === true) this._send(msg, this._ioChannels.client, originator)\n        return out\n    }\n\n    /** Process msg._uib.command - Remember to update #extCommands with new allowed commands\n     * @param {object} msg Msg from Node-RED containing a msg._uib object\n     */\n    _uibCommand(msg) {\n        if (!msg._uib || !msg._uib.command) {\n            log('error', 'uibuilder:_uibCommand', 'Invalid command message received', { msg })()\n            msg.payload = msg.error = 'Invalid command message received'\n            this.send(msg)\n            return\n        }\n        const cmd = msg._uib.command\n        // Disallowed command request outputs error and ignores the msg (NB: Case must match)\n        if (!this.#extCommands.includes(cmd.trim())) {\n            log('error', 'Uib:_uibCommand', `Command '${cmd} is not allowed to be called externally`)()\n            return\n        }\n        const prop = msg._uib.prop\n        const value = msg._uib.value\n        const quiet = msg._uib.quiet ?? false\n        let response, info\n\n        // Don't forget to update `#extCommands`, `docs/client-docs/control-from-node-red.md` & `functions.md`\n        switch (cmd) {\n            case 'elementIsVisible': {\n                response = this.elementIsVisible(prop)\n                // info = `Element \"${prop}\" ${response ? 'is visible' : 'is not visible'}`\n                break\n            }\n\n            case 'elementExists': {\n                response = this.elementExists(prop, false)\n                info = `Element \"${prop}\" ${response ? 'exists' : 'does not exist'}`\n                break\n            }\n\n            case 'get': {\n                response = this.get(prop)\n                break\n            }\n\n            case 'getManagedVarList': {\n                if (prop === 'full') response = this.getManagedVarList()\n                else response = Object.values(this.getManagedVarList())\n                break\n            }\n\n            case 'getWatchedVars': {\n                if (prop === 'full') response = this.getWatchedVars()\n                else response = Object.values(this.getWatchedVars())\n                break\n            }\n\n            case 'htmlSend': {\n                response = this.htmlSend('', false)\n                break\n            }\n\n            case 'include': {\n                // include is async\n                response = _ui.include(prop, value)\n                break\n            }\n\n            case 'navigate': {\n                let newUrl\n                if (prop) newUrl = prop\n                else if (value) newUrl = value\n                response = this.navigate(newUrl)\n                break\n            }\n\n            case 'scrollTo': {\n                response = this.scrollTo(prop, value)\n                break\n            }\n\n            case 'set': {\n                let store = false\n                let autoload = false\n                if (msg._uib.options && msg._uib.options.store) {\n                    if (msg._uib.options.store === true) store = true\n                    if (msg._uib.options.autoload === true) autoload = true\n                }\n                response = this.set(prop, value, store, autoload)\n                break\n            }\n\n            case 'showMsg': {\n                response = this.showMsg(value, prop)\n                break\n            }\n\n            case 'showStatus': {\n                response = this.showStatus(value, prop)\n                break\n            }\n\n            case 'uiGet': {\n                response = _ui.uiGet(prop, value)\n                break\n            }\n\n            case 'uiWatch': {\n                response = this.uiWatch(prop)\n                break\n            }\n\n            case 'watchUrlHash': {\n                response = this.watchUrlHash(prop)\n                break\n            }\n\n            default: {\n                log('warning', 'Uib:_uibCommand', `Command '${cmd}' not yet implemented`)()\n                break\n            }\n        }\n\n        if (quiet !== true) {\n            if (response === undefined) {\n                response = `'${prop}' is undefined`\n            }\n            if (Object(response).constructor === Promise) {\n                // response = `'${cmd} ${prop}' submitted. Cmd is async, no response available`\n                response\n                    .then( (/** @type {any} */ data) => {\n                        msg.payload = msg._uib.response = data\n                        msg.info = msg._uib.info = info\n                        if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                        this.send(msg)\n                        return true\n                    })\n                    .catch( err => {\n                        log(0, 'Uib:_uibCommand', 'Error: ', err)()\n                    })\n            } else {\n                msg.payload = msg._uib.response = response\n                msg.info = msg._uib.info = info\n                if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                this.send(msg)\n            }\n        }\n    } // --- end of _uibCommand ---\n\n    /** Do we want to process something? Check pageName, clientId, tabId. Defaults to yes.\n     * @param {*} obj Either a msg._ui or msg._uib object to check\n     * @returns {boolean} True if we should process the inbound _ui/_uib msg, false if not.\n     */\n    _forThis(obj) {\n        let r = true\n\n        // Is this msg for this pageName?\n        if (obj.pageName && obj.pageName !== this.pageName) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this page')()\n            r = false\n        }\n\n        // Is this msg for this clientId?\n        if (obj.clientId && obj.clientId !== this.clientId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this clientId')()\n            r = false\n        }\n\n        // Is this msg for this tabId?\n        if (obj.tabId && obj.tabId !== this.tabId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this tabId')()\n            r = false\n        }\n\n        return r\n    }\n\n    // Handle received messages - Process some msgs internally, emit specific events on document that make it easy for coders to use\n    _msgRcvdEvents(msg) {\n        // Message received\n        this._dispatchCustomEvent('uibuilder:stdMsgReceived', msg)\n\n        // Topic\n        if ( msg.topic ) this._dispatchCustomEvent(`uibuilder:msg:topic:${msg.topic}`, msg)\n\n        // Handle msg._uib special requests\n        if (msg._uib) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._uib)) return\n\n            /** Process a client reload request from Node-RED - as the page is reloaded, everything else is ignored\n             * Note that msg._ui.reload is also actioned via the _ui processing below */\n            if (msg._uib.reload === true) {\n                log('trace', 'Uib:_msgRcvdEvents:_uib:reload', 'reloading')()\n                location.reload()\n                return\n            }\n\n            // Process msg._uib.command messages - allows Node-RED to run uibuilder FE functions\n            if (msg._uib.command) {\n                this._uibCommand(msg)\n                return\n            }\n\n            // Better to request via msg._ui - these are for backwards compatibility\n            if ( msg._uib.componentRef === 'globalNotification' ) {\n                _ui.showDialog('notify', msg._uib.options, msg)\n            }\n            if ( msg._uib.componentRef === 'globalAlert' ) {\n                _ui.showDialog('alert', msg._uib.options, msg)\n            }\n        }\n\n        // Handle msg._ui requests\n        if ( msg._ui ) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._ui)) return\n\n            log('trace', 'Uib:_msgRcvdEvents:_ui', 'Calling _uiManager')()\n            this._dispatchCustomEvent('uibuilder:msg:_ui', msg)\n            _ui._uiManager(msg)\n        }\n    } // --- end of _msgRcvdEvents ---\n\n    /** Callback handler for messages from Node-RED\n     * NOTE: `this` is the class here rather the `socket` as would be normal since we bind the correct `this` in the call.\n     *       Use this._socket if needing reference to the socket.\n     * @callback ioSetupFromServer Called from ioSetup/this._socket.on(this.#ioChannels.server, this.stdMsgFromServer.bind(this))\n     * @param {object} receivedMsg The msg object from Node-RED\n     * @this Uib\n     */\n    _stdMsgFromServer(receivedMsg) {\n\n        // Make sure that msg is an object & not null\n        receivedMsg = makeMeAnObject(receivedMsg, 'payload')\n\n        // Don't process if the inbound msg is not for us\n        if (receivedMsg._uib && !this._forThis(receivedMsg._uib)) return\n        if (receivedMsg._ui && !this._forThis(receivedMsg._ui)) return\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedMsg)\n\n        // Track how many messages have been received\n        this.set('msgsReceived', ++this.msgsReceived)\n\n        // Emit specific document events on msg receipt that make it easy for coders to use\n        this._msgRcvdEvents(receivedMsg)\n\n        if ( !('_ui' in receivedMsg && !('payload' in receivedMsg)) ) {\n            // Save the msg for further processing\n            this.set('msg', receivedMsg)\n        }\n\n        log('info', 'Uib:ioSetup:stdMsgFromServer', `Channel '${this._ioChannels.server}'. Received msg #${this.msgsReceived}.`, receivedMsg)()\n\n        // ! NOTE: Don't try to handle specialist messages here. See _msgRcvdEvents.\n\n    } // -- End of websocket receive DATA msg from Node-RED -- //\n\n    /** Handles original control msgs (not to be confused with \"new\" msg._uib controls)\n     * @param {*} receivedCtrlMsg The msg received on the socket.io control channel\n     */\n    _ctrlMsgFromServer(receivedCtrlMsg) {\n\n        // Make sure that msg is an object & not null\n        if (receivedCtrlMsg === null) {\n            receivedCtrlMsg = {}\n        } else if (typeof receivedCtrlMsg !== 'object') {\n            const msg = {}\n            msg['uibuilderCtrl:' + this._ioChannels.control] = receivedCtrlMsg\n            receivedCtrlMsg = msg\n        }\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedCtrlMsg)\n\n        this.set('ctrlMsg', receivedCtrlMsg)\n        this.set('msgsCtrlReceived', ++this.msgsCtrlReceived)\n\n        log('trace', 'Uib:ioSetup:_ctrlMsgFromServer', `Channel '${this._ioChannels.control}'. Received control msg #${this.msgsCtrlReceived}`, receivedCtrlMsg)()\n\n        /** Process control msg types */\n        switch (receivedCtrlMsg.uibuilderCtrl) {\n            // Node-RED is shutting down\n            case 'shutdown': {\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, '\u274C Received \"shutdown\" from server')()\n                this.set('serverShutdown', undefined)\n                break\n            }\n\n            /** We are connected to the server - 1st msg from server */\n            case 'client connect': {\n                log('trace', `Uib:ioSetup:${this._ioChannels.control}`, 'Received \"client connect\" from server')()\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, `\u2705 Server connected. Version: ${receivedCtrlMsg.version}\\nServer time: ${receivedCtrlMsg.serverTimestamp}, Sever time offset: ${this.serverTimeOffset} hours`)()\n\n                if ( !Uib._meta.version.startsWith(receivedCtrlMsg.version.split('-')[0]) ) {\n                    log('warn', `Uib:ioSetup:${this._ioChannels.control}`, `Server version (${receivedCtrlMsg.version}) not the same as the client version (${Uib._meta.version})`)()\n                }\n\n                if (this.autoSendReady === true) { // eslint-disable-line no-lonely-if\n                    log('trace', `Uib:ioSetup:${this._ioChannels.control}/client connect`, 'Auto-sending ready-for-content/replay msg to server')\n                    // @since 0.4.8c Add cacheControl property for use with node-red-contrib-infocache\n                    // @since 6.1.0 Don't bother, we use the \"client connect\" msg\n                    // this._send({\n                    //     'uibuilderCtrl': 'ready for content',\n                    //     'cacheControl': 'REPLAY',\n                    // }, this._ioChannels.control)\n                }\n\n                break\n            }\n\n            default: {\n                log('trace', `uibuilderfe:ioSetup:${this._ioChannels.control}`, `Received ${receivedCtrlMsg.uibuilderCtrl} from server`)\n                // Anything else to do for other control msgs?\n            }\n\n        } // ---- End of process control msg types ---- //\n\n    } // -- End of websocket receive CONTROL msg from Node-RED -- //\n\n    /** Send log text to uibuilder's beacon endpoint (works even if socket.io not connected)\n     * @param {string} txtToSend Text string to send\n     * @param {string|undefined} logLevel Log level to use. If not supplied, will default to debug\n     */\n    beaconLog(txtToSend, logLevel) {\n        if (!logLevel) logLevel = 'debug'\n        navigator.sendBeacon('./_clientLog', `${logLevel}::${txtToSend}`)\n    }\n\n    /** Send log info back to Node-RED over uibuilder's websocket control output (Port #2)\n     * @param {...*} arguments All arguments passed to the function are added to the msg.payload\n     */\n    logToServer() {\n        this.sendCtrl({\n            uibuilderCtrl: 'client log message',\n            payload: arguments,\n            // \"version\":\"6.1.0-iife.min\",\n            _socketId: this._socket.id,\n            // \"ip\":\"::1\",\n            clientId: this.clientId,\n            tabId: this.tabId,\n            // \"url\":\"esp-test\",\n            pageName: this.pageName,\n            connections: this.connectedNum,\n            lastNavType: this.lastNavType,\n        })\n    }\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Socket.IO -------- //\n\n    /** Return the Socket.IO namespace\n     * The cookie method is the most reliable but this falls back to trying to work it\n     * out from the URL if cookies not available. That won't work if page is in a sub-folder.\n     * since 2017-10-21 Improve method to cope with more complex paths - thanks to Steve Rickus @shrickus\n     * since 2017-11-10 v1.0.1 Check cookie first then url. cookie works even if the path is more complex (e.g. sub-folder)\n     * since 2020-01-25 Removed httpRoot from namespace to prevent proxy induced errors\n     * @returns {string} Socket.IO namespace\n     */\n    _getIOnamespace() {\n\n        let ioNamespace\n\n        /** Try getting the namespace cookie. */\n        ioNamespace = this.cookies['uibuilder-namespace']\n\n        // if it wasn't available, try using the current url path\n        if (ioNamespace === undefined || ioNamespace === '') {\n            // split url path & eliminate any blank elements, and trailing or double slashes\n            const u = window.location.pathname.split('/')\n                .filter(function (t) { return t.trim() !== '' })\n\n            /** since v2.0.5 Extra check for 0 length, Issue #73. since 2017-11-06 If the last element of the path is an .html file name, remove it */\n            if (u.length > 0 && (u[u.length - 1].endsWith('.html'))) u.pop()\n\n            // Get the last part of the url path, this MUST match the namespace in uibuilder\n            ioNamespace = u.pop()\n\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via url path: ${ioNamespace}`)()\n        } else {\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via cookie: ${ioNamespace}`)()\n        }\n\n        this.url = ioNamespace\n        // Namespace HAS to start with a /\n        ioNamespace = '/' + ioNamespace\n\n        log('trace', 'uibuilder.module.js:getIOnamespace', `Final Socket.IO namespace: ${ioNamespace}`)()\n\n        return ioNamespace\n    } // --- End of set IO namespace --- //\n\n    /** Function used to check whether Socket.IO is connected to the server, reconnect if not (recursive)\n     * @param {number} [delay] Initial delay before checking (ms). Default=2000ms\n     * @param {number} [factor] Multiplication factor for subsequent checks (delay*factor). Default=1.5\n     * @param {number} [depth] Recursion depth\n     * @returns {boolean|undefined} Whether or not Socket.IO is connected to uibuilder in Node-RED\n     */\n    _checkConnect(delay, factor, depth = 1) {\n        if ( navigator.onLine === false ) return // Don't bother if we know we are offline\n\n        if (!delay) delay = this.retryMs\n        if (!factor) factor = this.retryFactor\n\n        log('trace', 'Uib:checkConnect', `Checking connection. Connected: ${this._socket.connected}. Timer: ${this.#timerid}. Depth: ${depth}. Delay: ${delay}. Factor: ${factor}`, this._socket)()\n\n        // If we are connected ...\n        if (this._socket.connected === true) {\n            // Clear the setTimeout\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this.set('ioConnected', true)\n            this.set('socketError', null)\n            return true\n        }\n\n        // ... we aren't connected so:\n        this.set('ioConnected', false)\n\n        // we only want one running at a time\n        if (this.#timerid) window.clearTimeout(this.#timerid)\n\n        // Create the new timer\n        this.#timerid = window.setTimeout(() => {\n            log('warn', 'Uib:checkConnect:setTimeout', `Socket.IO reconnection attempt. Current delay: ${delay}. Depth: ${depth}`)()\n\n            // this is necessary sometimes when the socket fails to connect on startup\n            this._socket.close()\n\n            // Try to reconnect\n            this._socket.connect()\n\n            // don't need to check whether we have connected as the timer will have been cleared if we have\n            this.#timerid = null\n\n            // @ts-ignore Create new timer for next time round with extended delay\n            this._checkConnect(delay * factor, factor, depth++)\n        }, delay)\n\n        return false\n    } // --- End of checkConnect Fn--- //\n\n    // See message handling section for msg receipt handlers\n\n    /** Called by _ioSetup when Socket.IO connects to Node-RED */\n    _onConnect() {\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n        log('info', 'Uib:ioSetup', `\u2705 SOCKET CONNECTED. Connection count: ${this.connectedNum}, Is a Recovery?: ${this._socket.recovered}. \\nNamespace: ${this.ioNamespace}`)()\n        this._dispatchCustomEvent('uibuilder:socket:connected', { 'numConnections': this.connectedNum, 'isRecovery': this._socket.recovered })\n\n        this._checkConnect() // resets any reconnection timers & sets connected flag\n    }\n\n    /** Called by _ioSetup when Socket.IO disconnects from Node-RED\n     * @param {string} reason Disconnection title\n     */\n    _onDisconnect(reason) {\n        // reason === 'io server disconnect' - redeploy of Node instance\n        // reason === 'transport close' - Node-RED terminating\n        // reason === 'ping timeout' - didn't receive a pong response?\n        log('info', 'Uib:ioSetup:socket-disconnect', `\u26D4 Socket Disconnected. Reason: ${reason}`)()\n\n        this._dispatchCustomEvent('uibuilder:socket:disconnected', reason)\n\n        /** A workaround for SIO's failure to reconnect after a disconnection */\n        this._checkConnect()\n    }\n\n    /** Setup Socket.io\n     * since v2.0.0-beta2 Moved to a function and called by the user (uibuilder.start()) so that namespace & path can be passed manually if needed\n     * @returns {boolean} Attaches socket.io manager to self._socket and updates self.ioNamespace & self.ioPath as needed\n     */\n    _ioSetup() {\n\n        // Just a notification, actual load is done outside the class (see start of file)\n        if (io === undefined) {\n            log('error', 'Uib:ioSetup', 'Socket.IO client not loaded, Node-RED comms will not work')()\n            return false\n        }\n\n        // If socket is already set up, close it and remove all of the listeners\n        if (this._socket) {\n            log('trace', 'Uib:ioSetup', 'Removing listeners in preparation for redoing Socket.IO connections')()\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this._socket.close()\n            this._socket.offAny()\n            this._socket = undefined\n            this.set('ioConnected', false)\n        }\n\n        // Update the URL path to make sure we have the right one\n        this.socketOptions.path = this.ioPath\n\n        // NOTE: this._socket.auth is now set by callback and so automatically updated for each client (re)connection. No need to set here\n\n        // Create the socket - make sure client uses Socket.IO version from the uibuilder module (using path)\n        log('trace', 'Uib:ioSetup', `About to create IO object. Transports: [${this.socketOptions.transports.join(', ')}]`)()\n        this._socket = io(this.ioNamespace, this.socketOptions)\n\n        /** When the socket is connected - set ioConnected flag and reset connect timer  */\n        this._socket.on('connect', this._onConnect.bind(this))\n\n        // RECEIVE a STANDARD, non-control msg from Node-RED server\n        this._socket.on(this._ioChannels.server, this._stdMsgFromServer.bind(this))\n\n        // RECEIVE a CONTROL msg from Node-RED server - see also sendCtrl()\n        this._socket.on(this._ioChannels.control, this._ctrlMsgFromServer.bind(this))\n\n        // When the socket is disconnected ..............\n        this._socket.on('disconnect', this._onDisconnect.bind(this))\n\n        // Socket.io connection error - probably the wrong ioPath - or client is offline\n        this._socket.on('connect_error', (err) => {\n            if ( navigator.onLine === false ) return // Don't bother with an error if we know we are offline\n            log('error', 'Uib:ioSetup:connect_error', `\u274C Socket.IO Connect Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket connect error processing ---\n\n        // Socket.io error - from the server (socket.use middleware triggered an error response)\n        this._socket.on('error', (err) => {\n            log('error', 'Uib:ioSetup:error', `\u274C Socket.IO Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket error processing ---\n\n        // Ensure we are connected, retry if not\n        this._checkConnect()\n\n        return true\n\n        /* We really don't need these, just for interest\n            self._socket.io.on('packet', function onPacket(data){\n                // we get one of these for each REAL msg (not ping/pong)\n                console.debug('PACKET', data)\n            })\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n                //console.dir(self._socket)\n            }) // --- End of socket pong processing ---\n            self._socket.io.on('packet', function(data){\n                // We get one of these for actual messages, not ping/pong\n                console.debug('PACKET', data)\n            })\n            self._socket.on('connect_timeout', function(timeout) {\n                console.debug('SOCKET CONNECT TIMEOUT - Namespace: ' + ioNamespace + ', Timeout: ' + timeout)\n            }) // --- End of socket connect timeout processing ---\n            self._socket.on('reconnect', function(attemptNum) {\n                console.debug('SOCKET RECONNECTED - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect processing ---\n            self._socket.on('reconnect_attempt', function(attemptNum) {\n                console.debug('SOCKET RECONNECT ATTEMPT - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect_attempt processing ---\n            self._socket.on('reconnecting', function(attemptNum) {\n                console.debug('SOCKET RECONNECTING - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnecting processing ---\n            self._socket.on('reconnect_error', function(err) {\n                console.debug('SOCKET RECONNECT ERROR - Namespace: ' + ioNamespace + ', Reason: ' + err.message)\n                //console.dir(err)\n            }) // --- End of socket reconnect_error processing ---\n            self._socket.on('reconnect_failed', function() {\n                console.debug('SOCKET RECONNECT FAILED - Namespace: ' + ioNamespace)\n            }) // --- End of socket reconnect_failed processing ---\n            self._socket.on('ping', function() {\n                console.debug('SOCKET PING')\n            }) // --- End of socket ping processing ---\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n            }) // --- End of socket pong processing ---\n            */\n    } // ---- End of ioSetup ---- //\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Class construction & startup method -------- //\n\n    constructor() {\n        log('trace', 'Uib:constructor', 'Starting')()\n\n        // Track whether the client is online or offline\n        window.addEventListener('offline', (e) => {\n            this.set('online', false)\n            this.set('ioConnected', false)\n            log('warn', 'Browser', 'DISCONNECTED from network')()\n        })\n        window.addEventListener('online', (e) => {\n            this.set('online', true)\n            log('warn', 'Browser', 'Reconnected to network')()\n            this._checkConnect()\n        })\n\n        document.cookie.split(';').forEach((c) => {\n            const splitC = c.split('=')\n            this.cookies[splitC[0].trim()] = splitC[1]\n        })\n\n        /** Client ID set by uibuilder - lasts until browser profile is closed, applies to all tabs */\n        this.set('clientId', this.cookies['uibuilder-client-id'])\n        log('trace', 'Uib:constructor', 'Client ID: ', this.clientId)()\n\n        /** Tab ID - lasts while the tab is open (even if reloaded)\n         * WARNING: Duplicating a tab retains the same tabId\n         */\n        this.set('tabId', window.sessionStorage.getItem('tabId'))\n        if (!this.tabId) {\n            this.set('tabId', `t${Math.floor(Math.random() * 1000000)}`)\n            window.sessionStorage.setItem('tabId', this.tabId)\n        }\n\n        // document.addEventListener('pagehide', (event) => {\n        //     // console.log(`pagehide. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pagehide. From Cache?: ${event.persisted}`)\n        // })\n        // document.addEventListener('pageshow', (event) => {\n        //     // console.log(`pageshow. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pageshow. From Cache?: ${event.persisted}`)\n        // })\n        document.addEventListener('load', () => {\n            this.set('isVisible', true)\n        })\n        document.addEventListener('visibilitychange', () => {\n            // hidden=unload, minimise. visible=un-minimise (not fired on load)\n            this.set('isVisible', document.visibilityState === 'visible')\n            this.sendCtrl({ uibuilderCtrl: 'visibility', isVisible: this.isVisible })\n            // navigator.userActivation is experimental Chromium only\n            // console.log('visibilitychange', ':', `Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n            // navigator.sendBeacon('./_clientLog', `${(new Date()).toISOString()} Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n        })\n\n        // Set a listener to update showStatus table if it is active\n        document.addEventListener('uibuilder:propertyChanged', (event) => {\n            if (!this.#isShowStatus) return\n\n            // @ts-ignore\n            if (event.detail.prop in this.#showStatus) {\n                // @ts-ignore\n                document.querySelector(`td[data-vartype=\"${event.detail.prop}\"]`).innerText = JSON.stringify(event.detail.value)\n            }\n        })\n\n        this.set('ioNamespace', this._getIOnamespace())\n\n        //#region - Try to make sure client uses Socket.IO client version from the uibuilder module (using cookie or path) @since v2.0.0 2019-02-24 allows for httpNodeRoot\n\n        /** httpNodeRoot (to set path) */\n        if ('uibuilder-webRoot' in this.cookies) {\n            this.set('httpNodeRoot', this.cookies['uibuilder-webRoot'])\n            log('trace', 'Uib:constructor', `httpNodeRoot set by cookie to \"${this.httpNodeRoot}\"`)()\n        } else {\n            // split current url path, eliminate any blank elements and trailing or double slashes\n            const fullPath = window.location.pathname.split('/').filter(function (t) { return t.trim() !== '' })\n            /** handle url includes file name - @since v2.0.5 Extra check for 0 length, Issue #73. */\n            if (fullPath.length > 0 && fullPath[fullPath.length - 1].endsWith('.html')) fullPath.pop()\n            fullPath.pop() // gives the last path section of the url\n            this.set('httpNodeRoot', `/${fullPath.join('/')}`)\n            log('trace', '[Uib:constructor]', `httpNodeRoot set by URL parsing to \"${this.httpNodeRoot}\". NOTE: This may fail for pages in sub-folders.`)()\n        }\n        this.set('ioPath', urlJoin(this.httpNodeRoot, Uib._meta.displayName, 'vendor', 'socket.io'))\n        log('trace', 'Uib:constructor', `ioPath: \"${this.ioPath}\"`)()\n\n        //#endregion\n\n        // Work out pageName\n        this.set('pageName', window.location.pathname.replace(`${this.ioNamespace}/`, ''))\n        if ( this.pageName.endsWith('/') ) this.set('pageName', `${this.pageName}index.html`)\n        if ( this.pageName === '' ) this.set('pageName', 'index.html')\n\n        // Attempt to restore autoload variables\n        try {\n            const autoloadVars = this.getStore('_uibAutoloadVars')\n            if (Object.keys(autoloadVars).length > 0) {\n                Object.keys(autoloadVars).forEach( (id) => {\n                    this.set(id, this.getStore(id))\n                })\n            }\n        } catch (e) {}\n\n        this._dispatchCustomEvent('uibuilder:constructorComplete')\n\n        log('trace', 'Uib:constructor', 'Ending')()\n    }\n\n    /** Start up Socket.IO comms and listeners\n     * This has to be done separately because if running from a web page in a sub-folder of src/dist, uibuilder cannot\n     * necessarily work out the correct ioPath to use.\n     * Also, if cookies aren't permitted in the browser, both ioPath and ioNamespace may need to be specified.\n     * @param {object} [options] The start options object.\n     * @returns {void}\n     */\n    start(options) {\n        log('trace', 'Uib:start', 'Starting')()\n\n        // Cancel the msg event handler if already present\n        if ( this.#MsgHandler ) this.cancelChange('msg', this.#MsgHandler)\n\n        if (this.started === true) {\n            log('info', 'Uib:start', 'Start function already called. Resetting Socket.IO and msg handler.')()\n        }\n\n        log('log', 'Uib:start', 'Cookies: ', this.cookies, `\\nClient ID: ${this.clientId}`)()\n        log('trace', 'Uib:start', 'ioNamespace: ', this.ioNamespace, `\\nioPath: ${this.ioPath}`)()\n\n        // Handle options\n        if (options) {\n            if (options.ioNamespace !== undefined && options.ioNamespace !== null && options.ioNamespace !== '') this.set('ioNamespace', options.ioNamespace)\n            if (options.ioPath !== undefined && options.ioPath !== null && options.ioPath !== '') this.set('ioPath', options.ioPath)\n            // See below for handling of options.loadStylesheet\n        }\n\n        // Do we need to load styles?\n        if ( document.styleSheets.length >= 1 || (document.styleSheets.length === 1 && document.styleSheets[0].cssRules.length === 0) ) {\n            log('info', 'Uib:start', 'Styles already loaded so not loading uibuilder default styles.')()\n        } else {\n            if (options && options.loadStylesheet === false) log('info', 'Uib:start', 'No styles loaded & options.loadStylesheet === false.')()\n            else {\n                log('info', 'Uib:start', 'No styles loaded, loading uibuilder default styles.')()\n                this.loadStyleSrc(`${this.httpNodeRoot}/uibuilder/uib-brand.min.css`)\n            }\n        }\n\n        /** Handle specialist messages like reload and _ui -> Moved to _msgRcvdEvents */\n\n        // Track last browser navigation type: navigate, reload, back_forward, prerender\n        const [entry] = performance.getEntriesByType('navigation')\n        // @ts-ignore\n        this.set('lastNavType', entry.type)\n\n        // Start up (or restart) Socket.IO connections and listeners. Returns false if io not found\n        this.set('started', this._ioSetup())\n\n        if ( this.started === true ) {\n            log('trace', 'Uib:start', 'Start completed. Socket.IO client library loaded.')()\n        } else {\n            log('error', 'Uib:start', 'Start completed. ERROR: Socket.IO client library NOT LOADED.')()\n        }\n\n        // Watch for URL hash changes in case using a front-end router. Updates watched var `urlHash` and socket.io `auth.urlHash`\n        this._watchHashChanges()\n\n        // Check if Vue is present (used for dynamic UI processing)\n        if (window['Vue']) {\n            this.set('isVue', true)\n            try {\n                this.set('vueVersion', window['Vue'].version)\n            } catch (e) { }\n            log('trace', 'Uib:start', `VueJS is loaded. Version: ${this.vueVersion}`)()\n        } else {\n            log('trace', 'Uib:start', 'VueJS is not loaded.')()\n        }\n\n        // Check if DOMPurify library is loaded\n        if (window['DOMPurify']) {\n            this.set('purify', true)\n            log('trace', 'Uib:start', 'DOMPurify is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'DOMPurify is not loaded.')()\n        }\n        // Check if Markdown-IT library is loaded\n        if (window['markdownit']) {\n            this.set('markdown', true)\n            log('trace', 'Uib:start', 'Markdown-IT is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'Markdown-IT is not loaded.')()\n        }\n\n        // if (window['DOMPurify']) {\n        //     this.set('purify', true)\n        //     log('trace', 'Uib:start', 'DOMPurify is loaded.')\n        // } else {\n        //     log('trace', 'Uib:start', 'DOMPurify is not loaded.')\n        // }\n\n        // Set up msg listener for the optional showMsg\n        this.onChange('msg', (msg) => {\n            if (this.#isShowMsg === true) {\n                const eMsg = document.getElementById('uib_last_msg')\n                if (eMsg) eMsg.innerHTML = this.syntaxHighlight(msg)\n            }\n        })\n\n        this._dispatchCustomEvent('uibuilder:startComplete')\n    }\n\n    //#endregion -------- ------------ -------- //\n} // ==== End of Class Uib ====\n\n//#region --- Wrap up - get things started ---\n\n// Create an instance (we will only ever want one)\nconst uibuilder = new Uib()\n\n// Assign reference to the instance to the global `window` object\n// Only useful if loading via <script> tag - prefer loading via `import uibuilder from ...`\nif (!window['uibuilder']) {\n    window['uibuilder'] = uibuilder\n} else {\n    log('error', 'uibuilder.module.js', '`uibuilder` already assigned to window. Have you tried to load it more than once?')\n}\nif (!window['uib']) {\n    window['uib'] = uibuilder\n} else {\n    log('warn', 'uibuilder.module.js', '`uib` shortcut already assigned to window.')\n}\n\n// Assign `$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$`.\nif (!window['$']) {\n    /** @type {HTMLElement} */\n    window['$'] = window['uibuilder'].$ // document.querySelector.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` instead.')\n}\n// Assign `$$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$$']) {\n    /** @type {HTMLElement} */\n    window['$$'] = window['uibuilder'].$$ // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` instead.')\n}\n\n// Can import as `import uibuilder from ...` OR `import {uibuilder} from ...`\nexport { uibuilder }\nexport default uibuilder\n\n// Attempt to run start fn\nuibuilder.start()\n\n// Add the class as a new Custom Element to the window object\ncustomElements.define('uib-var', UibVar)\n\n//#endregion --- Wrap up ---\n\n// EOF\n", "/** A zero dependency web component that will display a managed uibuilder variable.\n *\n * Version: 0.0.1 2023-10-07\n *\n * ToDo:\n * -\n */\n/*\n  Copyright (c) 2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n// const template = document.createElement('template')\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<link type=\"text/css\" rel=\"stylesheet\" href=\"\"../uibuilder/uib-brand.min.css\"\" media=\"all\"><span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`\n// {/* <style>@import url(\"../uibuilder/uib-brand.min.css\");</style><span></span> */}\n// `\n\nexport default class UibVar extends HTMLElement {\n    //#region --- Class Properties ---\n    /** @type {string} Name of the uibuilder mangaged variable to use */\n    variable\n    /** Current value of the watched variable */\n    value\n    /** Whether to output if the variable is undefined */\n    undefined = false\n    /** Whether to send update value to Node-RED on change */\n    report = false\n    /** What is the value type */\n    type = 'plain'\n    /** what are the available types? */\n    types = ['plain', 'html', 'markdown', 'object']\n\n    /** Mini jQuery-like shadow dom selector (see constructor) */\n    $\n    \n    /** Holds a count of how many instances of this component are on the page */\n    static _iCount = 0\n    /** @type {Array<string>} List of all of the html attribs (props) listened to */\n    static props = ['name', 'id', 'variable', 'undefined', 'report', 'type']\n    //#endregion --- Class Properties ---\n\n    constructor() {\n        super()\n        this.shadow = this.attachShadow({ mode: 'open', delegatesFocus: true })\n            // .append(template.content.cloneNode(true))\n\n        this.$ = this.shadowRoot.querySelector.bind(this.shadowRoot)\n\n        // Apply external styles to the shadow dom\n        this.css = document.createElement(\"link\")\n        this.css.setAttribute(\"type\", \"text/css\")\n        this.css.setAttribute(\"rel\", \"stylesheet\")\n        this.css.setAttribute(\"href\", \"../uibuilder/uib-brand.min.css\")\n\n        this.dispatchEvent(new Event(`uib-var:construction`, { bubbles: true, composed: true }))\n    }\n\n    // Makes HTML attribute change watched\n    static get observedAttributes() {\n        return UibVar.props\n    }\n\n    /** NOTE: On initial startup, this is called for each watched attrib set in HTML - BEFORE connectedCallback is called  */\n    attributeChangedCallback(attrib, oldVal, newVal) {\n        if ( oldVal === newVal ) return\n\n        switch (attrib) {\n            case 'variable': {\n                if (newVal === '') throw new Error('[uib-var] Attribute \"variable\" MUST be set to a UIBUILDER managed variable name')\n                this.variable = newVal\n                this.doWatch()\n                break\n            }\n            case 'undefined': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.undefined = true\n                else this.undefined = false\n                break\n            }\n            case 'report': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.report = true\n                else this.report = false\n                break\n            }\n            case 'type': {\n                if (newVal === '' || !this.types.includes(newVal.toLowerCase())) this.type = 'plain'\n                else this.type = newVal\n                break\n            }\n\n            default: {\n                this[attrib] = newVal\n                break\n            }\n        }\n    } // --- end of attributeChangedCallback --- //\n\n    // Runs when an instance is added to the DOM\n    connectedCallback() {\n        // Make sure instance has an ID. Create an id from name or calculation if needed\n        if (!this.id) {\n            if (!this.name) this.name = this.getAttribute('name')\n            if (this.name) this.id = this.name.toLowerCase().replace(/\\s/g, '_')\n            else this.id = `uib-var-${++UibVar._iCount}`\n        }\n    }  // ---- end of connectedCallback ---- //\n\n    // Runs when an instance is removed from the DOM\n    // disconnectedCallback() {} // ---- end of disconnectedCallback ---- //\n\n    /** Process changes to the required uibuilder variable */\n    doWatch() {\n        if (!this.variable) throw new Error('No variable name provided')\n        // if (!window['uibuilder']) throw new Error('UIBUILDER client library not loaded - this component must be loaded AFTER the UIBUILDER library')\n\n        this.value = window['uibuilder'].get(this.variable)\n        this.varDom()\n\n        // Watch for changes in the variable\n        window['uibuilder'].onChange(this.variable, (val) => {\n            this.value = val\n            this.varDom()\n            if (this.report === true) window['uibuilder'].send({topic: this.variable, payload: this.value || undefined})\n        })\n    }\n\n    /** Convert this.value to DOM output */\n    varDom() {\n        // If user doesn't want to show undefined vars, allow the component slot to show instead\n        if (this.value === undefined && this.undefined !== true) { \n            this.shadow.innerHTML = '<slot></slot>'\n            return\n        }\n        \n        let val = this.value\n\n        // console.log('\uD83E\uDDEA varDOM: ', val, typeof val, this.type)\n\n        switch (this.type) {\n            case 'markdown': {\n                this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(window['uibuilder'].convertMarkdown(val))\n                break\n            }\n        \n            case 'object': {\n                // console.log(window['uibuilder'].syntaxHighlight(val))\n                this.shadow.innerHTML = `<pre class=\"syntax-highlight\">${window['uibuilder'].syntaxHighlight(val)}</pre>`\n                break\n            }\n        \n            case 'plain':\n            case 'html':\n            default: {\n                const t = typeof val\n                if (Array.isArray(val) || t === '[object Object]' || t === 'object') {\n                    try {\n                        this.shadow.innerHTML = JSON.stringify(val)\n                    } catch (e) {\n                        this.shadow.innerHTML = val\n                    }\n                } else {\n                    this.shadow.innerHTML = val\n                }\n                break\n            }\n        }\n\n        this.shadow.appendChild(this.css)\n        // this.$('span').innerHTML = window['uibuilder'].sanitiseHTML(val)\n        // this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(val)\n    }\n}\n\n// Add the class as a new Custom Element to the window object \n// customElements.define('uib-var', UibVar)\n", "const PACKET_TYPES = Object.create(null); // no Map = no polyfill\nPACKET_TYPES[\"open\"] = \"0\";\nPACKET_TYPES[\"close\"] = \"1\";\nPACKET_TYPES[\"ping\"] = \"2\";\nPACKET_TYPES[\"pong\"] = \"3\";\nPACKET_TYPES[\"message\"] = \"4\";\nPACKET_TYPES[\"upgrade\"] = \"5\";\nPACKET_TYPES[\"noop\"] = \"6\";\nconst PACKET_TYPES_REVERSE = Object.create(null);\nObject.keys(PACKET_TYPES).forEach(key => {\n    PACKET_TYPES_REVERSE[PACKET_TYPES[key]] = key;\n});\nconst ERROR_PACKET = { type: \"error\", data: \"parser error\" };\nexport { PACKET_TYPES, PACKET_TYPES_REVERSE, ERROR_PACKET };\n", "import { PACKET_TYPES } from \"./commons.js\";\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        Object.prototype.toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\n// ArrayBuffer.isView method is not defined in IE10\nconst isView = obj => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj && obj.buffer instanceof ArrayBuffer;\n};\nconst encodePacket = ({ type, data }, supportsBinary, callback) => {\n    if (withNativeBlob && data instanceof Blob) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(data, callback);\n        }\n    }\n    else if (withNativeArrayBuffer &&\n        (data instanceof ArrayBuffer || isView(data))) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(new Blob([data]), callback);\n        }\n    }\n    // plain string\n    return callback(PACKET_TYPES[type] + (data || \"\"));\n};\nconst encodeBlobAsBase64 = (data, callback) => {\n    const fileReader = new FileReader();\n    fileReader.onload = function () {\n        const content = fileReader.result.split(\",\")[1];\n        callback(\"b\" + (content || \"\"));\n    };\n    return fileReader.readAsDataURL(data);\n};\nfunction toArray(data) {\n    if (data instanceof Uint8Array) {\n        return data;\n    }\n    else if (data instanceof ArrayBuffer) {\n        return new Uint8Array(data);\n    }\n    else {\n        return new Uint8Array(data.buffer, data.byteOffset, data.byteLength);\n    }\n}\nlet TEXT_ENCODER;\nexport function encodePacketToBinary(packet, callback) {\n    if (withNativeBlob && packet.data instanceof Blob) {\n        return packet.data\n            .arrayBuffer()\n            .then(toArray)\n            .then(callback);\n    }\n    else if (withNativeArrayBuffer &&\n        (packet.data instanceof ArrayBuffer || isView(packet.data))) {\n        return callback(toArray(packet.data));\n    }\n    encodePacket(packet, false, encoded => {\n        if (!TEXT_ENCODER) {\n            TEXT_ENCODER = new TextEncoder();\n        }\n        callback(TEXT_ENCODER.encode(encoded));\n    });\n}\nexport { encodePacket };\n", "// imported from https://github.com/socketio/base64-arraybuffer\nconst chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';\n// Use a lookup table to find the index.\nconst lookup = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);\nfor (let i = 0; i < chars.length; i++) {\n    lookup[chars.charCodeAt(i)] = i;\n}\nexport const encode = (arraybuffer) => {\n    let bytes = new Uint8Array(arraybuffer), i, len = bytes.length, base64 = '';\n    for (i = 0; i < len; i += 3) {\n        base64 += chars[bytes[i] >> 2];\n        base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];\n        base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];\n        base64 += chars[bytes[i + 2] & 63];\n    }\n    if (len % 3 === 2) {\n        base64 = base64.substring(0, base64.length - 1) + '=';\n    }\n    else if (len % 3 === 1) {\n        base64 = base64.substring(0, base64.length - 2) + '==';\n    }\n    return base64;\n};\nexport const decode = (base64) => {\n    let bufferLength = base64.length * 0.75, len = base64.length, i, p = 0, encoded1, encoded2, encoded3, encoded4;\n    if (base64[base64.length - 1] === '=') {\n        bufferLength--;\n        if (base64[base64.length - 2] === '=') {\n            bufferLength--;\n        }\n    }\n    const arraybuffer = new ArrayBuffer(bufferLength), bytes = new Uint8Array(arraybuffer);\n    for (i = 0; i < len; i += 4) {\n        encoded1 = lookup[base64.charCodeAt(i)];\n        encoded2 = lookup[base64.charCodeAt(i + 1)];\n        encoded3 = lookup[base64.charCodeAt(i + 2)];\n        encoded4 = lookup[base64.charCodeAt(i + 3)];\n        bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n        bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n        bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n    }\n    return arraybuffer;\n};\n", "import { ERROR_PACKET, PACKET_TYPES_REVERSE } from \"./commons.js\";\nimport { decode } from \"./contrib/base64-arraybuffer.js\";\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nexport const decodePacket = (encodedPacket, binaryType) => {\n    if (typeof encodedPacket !== \"string\") {\n        return {\n            type: \"message\",\n            data: mapBinary(encodedPacket, binaryType)\n        };\n    }\n    const type = encodedPacket.charAt(0);\n    if (type === \"b\") {\n        return {\n            type: \"message\",\n            data: decodeBase64Packet(encodedPacket.substring(1), binaryType)\n        };\n    }\n    const packetType = PACKET_TYPES_REVERSE[type];\n    if (!packetType) {\n        return ERROR_PACKET;\n    }\n    return encodedPacket.length > 1\n        ? {\n            type: PACKET_TYPES_REVERSE[type],\n            data: encodedPacket.substring(1)\n        }\n        : {\n            type: PACKET_TYPES_REVERSE[type]\n        };\n};\nconst decodeBase64Packet = (data, binaryType) => {\n    if (withNativeArrayBuffer) {\n        const decoded = decode(data);\n        return mapBinary(decoded, binaryType);\n    }\n    else {\n        return { base64: true, data }; // fallback for old browsers\n    }\n};\nconst mapBinary = (data, binaryType) => {\n    switch (binaryType) {\n        case \"blob\":\n            if (data instanceof Blob) {\n                // from WebSocket + binaryType \"blob\"\n                return data;\n            }\n            else {\n                // from HTTP long-polling or WebTransport\n                return new Blob([data]);\n            }\n        case \"arraybuffer\":\n        default:\n            if (data instanceof ArrayBuffer) {\n                // from HTTP long-polling (base64) or WebSocket + binaryType \"arraybuffer\"\n                return data;\n            }\n            else {\n                // from WebTransport (Uint8Array)\n                return data.buffer;\n            }\n    }\n};\n", "import { encodePacket, encodePacketToBinary } from \"./encodePacket.js\";\nimport { decodePacket } from \"./decodePacket.js\";\nimport { ERROR_PACKET } from \"./commons.js\";\nconst SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text\nconst encodePayload = (packets, callback) => {\n    // some packets may be added to the array while encoding, so the initial length must be saved\n    const length = packets.length;\n    const encodedPackets = new Array(length);\n    let count = 0;\n    packets.forEach((packet, i) => {\n        // force base64 encoding for binary packets\n        encodePacket(packet, false, encodedPacket => {\n            encodedPackets[i] = encodedPacket;\n            if (++count === length) {\n                callback(encodedPackets.join(SEPARATOR));\n            }\n        });\n    });\n};\nconst decodePayload = (encodedPayload, binaryType) => {\n    const encodedPackets = encodedPayload.split(SEPARATOR);\n    const packets = [];\n    for (let i = 0; i < encodedPackets.length; i++) {\n        const decodedPacket = decodePacket(encodedPackets[i], binaryType);\n        packets.push(decodedPacket);\n        if (decodedPacket.type === \"error\") {\n            break;\n        }\n    }\n    return packets;\n};\nexport function createPacketEncoderStream() {\n    return new TransformStream({\n        transform(packet, controller) {\n            encodePacketToBinary(packet, encodedPacket => {\n                const payloadLength = encodedPacket.length;\n                let header;\n                // inspired by the WebSocket format: https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API/Writing_WebSocket_servers#decoding_payload_length\n                if (payloadLength < 126) {\n                    header = new Uint8Array(1);\n                    new DataView(header.buffer).setUint8(0, payloadLength);\n                }\n                else if (payloadLength < 65536) {\n                    header = new Uint8Array(3);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 126);\n                    view.setUint16(1, payloadLength);\n                }\n                else {\n                    header = new Uint8Array(9);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 127);\n                    view.setBigUint64(1, BigInt(payloadLength));\n                }\n                // first bit indicates whether the payload is plain text (0) or binary (1)\n                if (packet.data && typeof packet.data !== \"string\") {\n                    header[0] |= 0x80;\n                }\n                controller.enqueue(header);\n                controller.enqueue(encodedPacket);\n            });\n        }\n    });\n}\nlet TEXT_DECODER;\nfunction totalLength(chunks) {\n    return chunks.reduce((acc, chunk) => acc + chunk.length, 0);\n}\nfunction concatChunks(chunks, size) {\n    if (chunks[0].length === size) {\n        return chunks.shift();\n    }\n    const buffer = new Uint8Array(size);\n    let j = 0;\n    for (let i = 0; i < size; i++) {\n        buffer[i] = chunks[0][j++];\n        if (j === chunks[0].length) {\n            chunks.shift();\n            j = 0;\n        }\n    }\n    if (chunks.length && j < chunks[0].length) {\n        chunks[0] = chunks[0].slice(j);\n    }\n    return buffer;\n}\nexport function createPacketDecoderStream(maxPayload, binaryType) {\n    if (!TEXT_DECODER) {\n        TEXT_DECODER = new TextDecoder();\n    }\n    const chunks = [];\n    let state = 0 /* READ_HEADER */;\n    let expectedLength = -1;\n    let isBinary = false;\n    return new TransformStream({\n        transform(chunk, controller) {\n            chunks.push(chunk);\n            while (true) {\n                if (state === 0 /* READ_HEADER */) {\n                    if (totalLength(chunks) < 1) {\n                        break;\n                    }\n                    const header = concatChunks(chunks, 1);\n                    isBinary = (header[0] & 0x80) === 0x80;\n                    expectedLength = header[0] & 0x7f;\n                    if (expectedLength < 126) {\n                        state = 3 /* READ_PAYLOAD */;\n                    }\n                    else if (expectedLength === 126) {\n                        state = 1 /* READ_EXTENDED_LENGTH_16 */;\n                    }\n                    else {\n                        state = 2 /* READ_EXTENDED_LENGTH_64 */;\n                    }\n                }\n                else if (state === 1 /* READ_EXTENDED_LENGTH_16 */) {\n                    if (totalLength(chunks) < 2) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 2);\n                    expectedLength = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length).getUint16(0);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else if (state === 2 /* READ_EXTENDED_LENGTH_64 */) {\n                    if (totalLength(chunks) < 8) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 8);\n                    const view = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length);\n                    const n = view.getUint32(0);\n                    if (n > Math.pow(2, 53 - 32) - 1) {\n                        // the maximum safe integer in JavaScript is 2^53 - 1\n                        controller.enqueue(ERROR_PACKET);\n                        break;\n                    }\n                    expectedLength = n * Math.pow(2, 32) + view.getUint32(4);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else {\n                    if (totalLength(chunks) < expectedLength) {\n                        break;\n                    }\n                    const data = concatChunks(chunks, expectedLength);\n                    controller.enqueue(decodePacket(isBinary ? data : TEXT_DECODER.decode(data), binaryType));\n                    state = 0 /* READ_HEADER */;\n                }\n                if (expectedLength === 0 || expectedLength > maxPayload) {\n                    controller.enqueue(ERROR_PACKET);\n                    break;\n                }\n            }\n        }\n    });\n}\nexport const protocol = 4;\nexport { encodePacket, encodePayload, decodePacket, decodePayload };\n", "/**\n * Initialize a new `Emitter`.\n *\n * @api public\n */\n\nexport function Emitter(obj) {\n  if (obj) return mixin(obj);\n}\n\n/**\n * Mixin the emitter properties.\n *\n * @param {Object} obj\n * @return {Object}\n * @api private\n */\n\nfunction mixin(obj) {\n  for (var key in Emitter.prototype) {\n    obj[key] = Emitter.prototype[key];\n  }\n  return obj;\n}\n\n/**\n * Listen on the given `event` with `fn`.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.on =\nEmitter.prototype.addEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])\n    .push(fn);\n  return this;\n};\n\n/**\n * Adds an `event` listener that will be invoked a single\n * time then automatically removed.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.once = function(event, fn){\n  function on() {\n    this.off(event, on);\n    fn.apply(this, arguments);\n  }\n\n  on.fn = fn;\n  this.on(event, on);\n  return this;\n};\n\n/**\n * Remove the given callback for `event` or all\n * registered callbacks.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.off =\nEmitter.prototype.removeListener =\nEmitter.prototype.removeAllListeners =\nEmitter.prototype.removeEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n\n  // all\n  if (0 == arguments.length) {\n    this._callbacks = {};\n    return this;\n  }\n\n  // specific event\n  var callbacks = this._callbacks['$' + event];\n  if (!callbacks) return this;\n\n  // remove all handlers\n  if (1 == arguments.length) {\n    delete this._callbacks['$' + event];\n    return this;\n  }\n\n  // remove specific handler\n  var cb;\n  for (var i = 0; i < callbacks.length; i++) {\n    cb = callbacks[i];\n    if (cb === fn || cb.fn === fn) {\n      callbacks.splice(i, 1);\n      break;\n    }\n  }\n\n  // Remove event specific arrays for event types that no\n  // one is subscribed for to avoid memory leak.\n  if (callbacks.length === 0) {\n    delete this._callbacks['$' + event];\n  }\n\n  return this;\n};\n\n/**\n * Emit `event` with the given args.\n *\n * @param {String} event\n * @param {Mixed} ...\n * @return {Emitter}\n */\n\nEmitter.prototype.emit = function(event){\n  this._callbacks = this._callbacks || {};\n\n  var args = new Array(arguments.length - 1)\n    , callbacks = this._callbacks['$' + event];\n\n  for (var i = 1; i < arguments.length; i++) {\n    args[i - 1] = arguments[i];\n  }\n\n  if (callbacks) {\n    callbacks = callbacks.slice(0);\n    for (var i = 0, len = callbacks.length; i < len; ++i) {\n      callbacks[i].apply(this, args);\n    }\n  }\n\n  return this;\n};\n\n// alias used for reserved events (protected method)\nEmitter.prototype.emitReserved = Emitter.prototype.emit;\n\n/**\n * Return array of callbacks for `event`.\n *\n * @param {String} event\n * @return {Array}\n * @api public\n */\n\nEmitter.prototype.listeners = function(event){\n  this._callbacks = this._callbacks || {};\n  return this._callbacks['$' + event] || [];\n};\n\n/**\n * Check if this emitter has `event` handlers.\n *\n * @param {String} event\n * @return {Boolean}\n * @api public\n */\n\nEmitter.prototype.hasListeners = function(event){\n  return !! this.listeners(event).length;\n};\n", "export const globalThisShim = (() => {\n    if (typeof self !== \"undefined\") {\n        return self;\n    }\n    else if (typeof window !== \"undefined\") {\n        return window;\n    }\n    else {\n        return Function(\"return this\")();\n    }\n})();\n", "import { globalThisShim as globalThis } from \"./globalThis.js\";\nexport function pick(obj, ...attr) {\n    return attr.reduce((acc, k) => {\n        if (obj.hasOwnProperty(k)) {\n            acc[k] = obj[k];\n        }\n        return acc;\n    }, {});\n}\n// Keep a reference to the real timeout functions so they can be used when overridden\nconst NATIVE_SET_TIMEOUT = globalThis.setTimeout;\nconst NATIVE_CLEAR_TIMEOUT = globalThis.clearTimeout;\nexport function installTimerFunctions(obj, opts) {\n    if (opts.useNativeTimers) {\n        obj.setTimeoutFn = NATIVE_SET_TIMEOUT.bind(globalThis);\n        obj.clearTimeoutFn = NATIVE_CLEAR_TIMEOUT.bind(globalThis);\n    }\n    else {\n        obj.setTimeoutFn = globalThis.setTimeout.bind(globalThis);\n        obj.clearTimeoutFn = globalThis.clearTimeout.bind(globalThis);\n    }\n}\n// base64 encoded buffers are about 33% bigger (https://en.wikipedia.org/wiki/Base64)\nconst BASE64_OVERHEAD = 1.33;\n// we could also have used `new Blob([obj]).size`, but it isn't supported in IE9\nexport function byteLength(obj) {\n    if (typeof obj === \"string\") {\n        return utf8Length(obj);\n    }\n    // arraybuffer or blob\n    return Math.ceil((obj.byteLength || obj.size) * BASE64_OVERHEAD);\n}\nfunction utf8Length(str) {\n    let c = 0, length = 0;\n    for (let i = 0, l = str.length; i < l; i++) {\n        c = str.charCodeAt(i);\n        if (c < 0x80) {\n            length += 1;\n        }\n        else if (c < 0x800) {\n            length += 2;\n        }\n        else if (c < 0xd800 || c >= 0xe000) {\n            length += 3;\n        }\n        else {\n            i++;\n            length += 4;\n        }\n    }\n    return length;\n}\n", "// imported from https://github.com/galkn/querystring\n/**\n * Compiles a querystring\n * Returns string representation of the object\n *\n * @param {Object}\n * @api private\n */\nexport function encode(obj) {\n    let str = '';\n    for (let i in obj) {\n        if (obj.hasOwnProperty(i)) {\n            if (str.length)\n                str += '&';\n            str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);\n        }\n    }\n    return str;\n}\n/**\n * Parses a simple querystring into an object\n *\n * @param {String} qs\n * @api private\n */\nexport function decode(qs) {\n    let qry = {};\n    let pairs = qs.split('&');\n    for (let i = 0, l = pairs.length; i < l; i++) {\n        let pair = pairs[i].split('=');\n        qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);\n    }\n    return qry;\n}\n", "import { decodePacket } from \"engine.io-parser\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions } from \"./util.js\";\nimport { encode } from \"./contrib/parseqs.js\";\nexport class TransportError extends Error {\n    constructor(reason, description, context) {\n        super(reason);\n        this.description = description;\n        this.context = context;\n        this.type = \"TransportError\";\n    }\n}\nexport class Transport extends Emitter {\n    /**\n     * Transport abstract constructor.\n     *\n     * @param {Object} opts - options\n     * @protected\n     */\n    constructor(opts) {\n        super();\n        this.writable = false;\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.query = opts.query;\n        this.socket = opts.socket;\n    }\n    /**\n     * Emits an error.\n     *\n     * @param {String} reason\n     * @param description\n     * @param context - the error context\n     * @return {Transport} for chaining\n     * @protected\n     */\n    onError(reason, description, context) {\n        super.emitReserved(\"error\", new TransportError(reason, description, context));\n        return this;\n    }\n    /**\n     * Opens the transport.\n     */\n    open() {\n        this.readyState = \"opening\";\n        this.doOpen();\n        return this;\n    }\n    /**\n     * Closes the transport.\n     */\n    close() {\n        if (this.readyState === \"opening\" || this.readyState === \"open\") {\n            this.doClose();\n            this.onClose();\n        }\n        return this;\n    }\n    /**\n     * Sends multiple packets.\n     *\n     * @param {Array} packets\n     */\n    send(packets) {\n        if (this.readyState === \"open\") {\n            this.write(packets);\n        }\n        else {\n            // this might happen if the transport was silently closed in the beforeunload event handler\n        }\n    }\n    /**\n     * Called upon open\n     *\n     * @protected\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        this.writable = true;\n        super.emitReserved(\"open\");\n    }\n    /**\n     * Called with data.\n     *\n     * @param {String} data\n     * @protected\n     */\n    onData(data) {\n        const packet = decodePacket(data, this.socket.binaryType);\n        this.onPacket(packet);\n    }\n    /**\n     * Called with a decoded packet.\n     *\n     * @protected\n     */\n    onPacket(packet) {\n        super.emitReserved(\"packet\", packet);\n    }\n    /**\n     * Called upon close.\n     *\n     * @protected\n     */\n    onClose(details) {\n        this.readyState = \"closed\";\n        super.emitReserved(\"close\", details);\n    }\n    /**\n     * Pauses the transport, in order not to lose packets during an upgrade.\n     *\n     * @param onPause\n     */\n    pause(onPause) { }\n    createUri(schema, query = {}) {\n        return (schema +\n            \"://\" +\n            this._hostname() +\n            this._port() +\n            this.opts.path +\n            this._query(query));\n    }\n    _hostname() {\n        const hostname = this.opts.hostname;\n        return hostname.indexOf(\":\") === -1 ? hostname : \"[\" + hostname + \"]\";\n    }\n    _port() {\n        if (this.opts.port &&\n            ((this.opts.secure && Number(this.opts.port !== 443)) ||\n                (!this.opts.secure && Number(this.opts.port) !== 80))) {\n            return \":\" + this.opts.port;\n        }\n        else {\n            return \"\";\n        }\n    }\n    _query(query) {\n        const encodedQuery = encode(query);\n        return encodedQuery.length ? \"?\" + encodedQuery : \"\";\n    }\n}\n", "// imported from https://github.com/unshiftio/yeast\n'use strict';\nconst alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split(''), length = 64, map = {};\nlet seed = 0, i = 0, prev;\n/**\n * Return a string representing the specified number.\n *\n * @param {Number} num The number to convert.\n * @returns {String} The string representation of the number.\n * @api public\n */\nexport function encode(num) {\n    let encoded = '';\n    do {\n        encoded = alphabet[num % length] + encoded;\n        num = Math.floor(num / length);\n    } while (num > 0);\n    return encoded;\n}\n/**\n * Return the integer value specified by the given string.\n *\n * @param {String} str The string to convert.\n * @returns {Number} The integer value represented by the string.\n * @api public\n */\nexport function decode(str) {\n    let decoded = 0;\n    for (i = 0; i < str.length; i++) {\n        decoded = decoded * length + map[str.charAt(i)];\n    }\n    return decoded;\n}\n/**\n * Yeast: A tiny growing id generator.\n *\n * @returns {String} A unique id.\n * @api public\n */\nexport function yeast() {\n    const now = encode(+new Date());\n    if (now !== prev)\n        return seed = 0, prev = now;\n    return now + '.' + encode(seed++);\n}\n//\n// Map each character to its index.\n//\nfor (; i < length; i++)\n    map[alphabet[i]] = i;\n", "// imported from https://github.com/component/has-cors\nlet value = false;\ntry {\n    value = typeof XMLHttpRequest !== 'undefined' &&\n        'withCredentials' in new XMLHttpRequest();\n}\ncatch (err) {\n    // if XMLHttp support is disabled in IE then it will throw\n    // when trying to create\n}\nexport const hasCORS = value;\n", "// browser shim for xmlhttprequest module\nimport { hasCORS } from \"../contrib/has-cors.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nexport function XHR(opts) {\n    const xdomain = opts.xdomain;\n    // XMLHttpRequest can be disabled on IE\n    try {\n        if (\"undefined\" !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {\n            return new XMLHttpRequest();\n        }\n    }\n    catch (e) { }\n    if (!xdomain) {\n        try {\n            return new globalThis[[\"Active\"].concat(\"Object\").join(\"X\")](\"Microsoft.XMLHTTP\");\n        }\n        catch (e) { }\n    }\n}\nexport function createCookieJar() { }\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { encodePayload, decodePayload } from \"engine.io-parser\";\nimport { createCookieJar, XHR as XMLHttpRequest, } from \"./xmlhttprequest.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions, pick } from \"../util.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nfunction empty() { }\nconst hasXHR2 = (function () {\n    const xhr = new XMLHttpRequest({\n        xdomain: false,\n    });\n    return null != xhr.responseType;\n})();\nexport class Polling extends Transport {\n    /**\n     * XHR Polling constructor.\n     *\n     * @param {Object} opts\n     * @package\n     */\n    constructor(opts) {\n        super(opts);\n        this.polling = false;\n        if (typeof location !== \"undefined\") {\n            const isSSL = \"https:\" === location.protocol;\n            let port = location.port;\n            // some user agents have empty `location.port`\n            if (!port) {\n                port = isSSL ? \"443\" : \"80\";\n            }\n            this.xd =\n                (typeof location !== \"undefined\" &&\n                    opts.hostname !== location.hostname) ||\n                    port !== opts.port;\n        }\n        /**\n         * XHR supports binary\n         */\n        const forceBase64 = opts && opts.forceBase64;\n        this.supportsBinary = hasXHR2 && !forceBase64;\n        if (this.opts.withCredentials) {\n            this.cookieJar = createCookieJar();\n        }\n    }\n    get name() {\n        return \"polling\";\n    }\n    /**\n     * Opens the socket (triggers polling). We write a PING message to determine\n     * when the transport is open.\n     *\n     * @protected\n     */\n    doOpen() {\n        this.poll();\n    }\n    /**\n     * Pauses polling.\n     *\n     * @param {Function} onPause - callback upon buffers are flushed and transport is paused\n     * @package\n     */\n    pause(onPause) {\n        this.readyState = \"pausing\";\n        const pause = () => {\n            this.readyState = \"paused\";\n            onPause();\n        };\n        if (this.polling || !this.writable) {\n            let total = 0;\n            if (this.polling) {\n                total++;\n                this.once(\"pollComplete\", function () {\n                    --total || pause();\n                });\n            }\n            if (!this.writable) {\n                total++;\n                this.once(\"drain\", function () {\n                    --total || pause();\n                });\n            }\n        }\n        else {\n            pause();\n        }\n    }\n    /**\n     * Starts polling cycle.\n     *\n     * @private\n     */\n    poll() {\n        this.polling = true;\n        this.doPoll();\n        this.emitReserved(\"poll\");\n    }\n    /**\n     * Overloads onData to detect payloads.\n     *\n     * @protected\n     */\n    onData(data) {\n        const callback = (packet) => {\n            // if its the first message we consider the transport open\n            if (\"opening\" === this.readyState && packet.type === \"open\") {\n                this.onOpen();\n            }\n            // if its a close packet, we close the ongoing requests\n            if (\"close\" === packet.type) {\n                this.onClose({ description: \"transport closed by the server\" });\n                return false;\n            }\n            // otherwise bypass onData and handle the message\n            this.onPacket(packet);\n        };\n        // decode payload\n        decodePayload(data, this.socket.binaryType).forEach(callback);\n        // if an event did not trigger closing\n        if (\"closed\" !== this.readyState) {\n            // if we got data we're not polling\n            this.polling = false;\n            this.emitReserved(\"pollComplete\");\n            if (\"open\" === this.readyState) {\n                this.poll();\n            }\n            else {\n            }\n        }\n    }\n    /**\n     * For polling, send a close packet.\n     *\n     * @protected\n     */\n    doClose() {\n        const close = () => {\n            this.write([{ type: \"close\" }]);\n        };\n        if (\"open\" === this.readyState) {\n            close();\n        }\n        else {\n            // in case we're trying to close while\n            // handshaking is in progress (GH-164)\n            this.once(\"open\", close);\n        }\n    }\n    /**\n     * Writes a packets payload.\n     *\n     * @param {Array} packets - data packets\n     * @protected\n     */\n    write(packets) {\n        this.writable = false;\n        encodePayload(packets, (data) => {\n            this.doWrite(data, () => {\n                this.writable = true;\n                this.emitReserved(\"drain\");\n            });\n        });\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"https\" : \"http\";\n        const query = this.query || {};\n        // cache busting is forced\n        if (false !== this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        if (!this.supportsBinary && !query.sid) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Creates a request.\n     *\n     * @param {String} method\n     * @private\n     */\n    request(opts = {}) {\n        Object.assign(opts, { xd: this.xd, cookieJar: this.cookieJar }, this.opts);\n        return new Request(this.uri(), opts);\n    }\n    /**\n     * Sends data.\n     *\n     * @param {String} data to send.\n     * @param {Function} called upon flush.\n     * @private\n     */\n    doWrite(data, fn) {\n        const req = this.request({\n            method: \"POST\",\n            data: data,\n        });\n        req.on(\"success\", fn);\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr post error\", xhrStatus, context);\n        });\n    }\n    /**\n     * Starts a poll cycle.\n     *\n     * @private\n     */\n    doPoll() {\n        const req = this.request();\n        req.on(\"data\", this.onData.bind(this));\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr poll error\", xhrStatus, context);\n        });\n        this.pollXhr = req;\n    }\n}\nexport class Request extends Emitter {\n    /**\n     * Request constructor\n     *\n     * @param {Object} options\n     * @package\n     */\n    constructor(uri, opts) {\n        super();\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.method = opts.method || \"GET\";\n        this.uri = uri;\n        this.data = undefined !== opts.data ? opts.data : null;\n        this.create();\n    }\n    /**\n     * Creates the XHR object and sends the request.\n     *\n     * @private\n     */\n    create() {\n        var _a;\n        const opts = pick(this.opts, \"agent\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"autoUnref\");\n        opts.xdomain = !!this.opts.xd;\n        const xhr = (this.xhr = new XMLHttpRequest(opts));\n        try {\n            xhr.open(this.method, this.uri, true);\n            try {\n                if (this.opts.extraHeaders) {\n                    xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);\n                    for (let i in this.opts.extraHeaders) {\n                        if (this.opts.extraHeaders.hasOwnProperty(i)) {\n                            xhr.setRequestHeader(i, this.opts.extraHeaders[i]);\n                        }\n                    }\n                }\n            }\n            catch (e) { }\n            if (\"POST\" === this.method) {\n                try {\n                    xhr.setRequestHeader(\"Content-type\", \"text/plain;charset=UTF-8\");\n                }\n                catch (e) { }\n            }\n            try {\n                xhr.setRequestHeader(\"Accept\", \"*/*\");\n            }\n            catch (e) { }\n            (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.addCookies(xhr);\n            // ie6 check\n            if (\"withCredentials\" in xhr) {\n                xhr.withCredentials = this.opts.withCredentials;\n            }\n            if (this.opts.requestTimeout) {\n                xhr.timeout = this.opts.requestTimeout;\n            }\n            xhr.onreadystatechange = () => {\n                var _a;\n                if (xhr.readyState === 3) {\n                    (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.parseCookies(xhr);\n                }\n                if (4 !== xhr.readyState)\n                    return;\n                if (200 === xhr.status || 1223 === xhr.status) {\n                    this.onLoad();\n                }\n                else {\n                    // make sure the `error` event handler that's user-set\n                    // does not throw in the same tick and gets caught here\n                    this.setTimeoutFn(() => {\n                        this.onError(typeof xhr.status === \"number\" ? xhr.status : 0);\n                    }, 0);\n                }\n            };\n            xhr.send(this.data);\n        }\n        catch (e) {\n            // Need to defer since .create() is called directly from the constructor\n            // and thus the 'error' event can only be only bound *after* this exception\n            // occurs.  Therefore, also, we cannot throw here at all.\n            this.setTimeoutFn(() => {\n                this.onError(e);\n            }, 0);\n            return;\n        }\n        if (typeof document !== \"undefined\") {\n            this.index = Request.requestsCount++;\n            Request.requests[this.index] = this;\n        }\n    }\n    /**\n     * Called upon error.\n     *\n     * @private\n     */\n    onError(err) {\n        this.emitReserved(\"error\", err, this.xhr);\n        this.cleanup(true);\n    }\n    /**\n     * Cleans up house.\n     *\n     * @private\n     */\n    cleanup(fromError) {\n        if (\"undefined\" === typeof this.xhr || null === this.xhr) {\n            return;\n        }\n        this.xhr.onreadystatechange = empty;\n        if (fromError) {\n            try {\n                this.xhr.abort();\n            }\n            catch (e) { }\n        }\n        if (typeof document !== \"undefined\") {\n            delete Request.requests[this.index];\n        }\n        this.xhr = null;\n    }\n    /**\n     * Called upon load.\n     *\n     * @private\n     */\n    onLoad() {\n        const data = this.xhr.responseText;\n        if (data !== null) {\n            this.emitReserved(\"data\", data);\n            this.emitReserved(\"success\");\n            this.cleanup();\n        }\n    }\n    /**\n     * Aborts the request.\n     *\n     * @package\n     */\n    abort() {\n        this.cleanup();\n    }\n}\nRequest.requestsCount = 0;\nRequest.requests = {};\n/**\n * Aborts pending requests when unloading the window. This is needed to prevent\n * memory leaks (e.g. when using IE) and to ensure that no spurious error is\n * emitted.\n */\nif (typeof document !== \"undefined\") {\n    // @ts-ignore\n    if (typeof attachEvent === \"function\") {\n        // @ts-ignore\n        attachEvent(\"onunload\", unloadHandler);\n    }\n    else if (typeof addEventListener === \"function\") {\n        const terminationEvent = \"onpagehide\" in globalThis ? \"pagehide\" : \"unload\";\n        addEventListener(terminationEvent, unloadHandler, false);\n    }\n}\nfunction unloadHandler() {\n    for (let i in Request.requests) {\n        if (Request.requests.hasOwnProperty(i)) {\n            Request.requests[i].abort();\n        }\n    }\n}\n", "import { globalThisShim as globalThis } from \"../globalThis.js\";\nexport const nextTick = (() => {\n    const isPromiseAvailable = typeof Promise === \"function\" && typeof Promise.resolve === \"function\";\n    if (isPromiseAvailable) {\n        return (cb) => Promise.resolve().then(cb);\n    }\n    else {\n        return (cb, setTimeoutFn) => setTimeoutFn(cb, 0);\n    }\n})();\nexport const WebSocket = globalThis.WebSocket || globalThis.MozWebSocket;\nexport const usingBrowserWebSocket = true;\nexport const defaultBinaryType = \"arraybuffer\";\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { pick } from \"../util.js\";\nimport { nextTick, usingBrowserWebSocket, WebSocket, } from \"./websocket-constructor.js\";\nimport { encodePacket } from \"engine.io-parser\";\n// detect ReactNative environment\nconst isReactNative = typeof navigator !== \"undefined\" &&\n    typeof navigator.product === \"string\" &&\n    navigator.product.toLowerCase() === \"reactnative\";\nexport class WS extends Transport {\n    /**\n     * WebSocket transport constructor.\n     *\n     * @param {Object} opts - connection options\n     * @protected\n     */\n    constructor(opts) {\n        super(opts);\n        this.supportsBinary = !opts.forceBase64;\n    }\n    get name() {\n        return \"websocket\";\n    }\n    doOpen() {\n        if (!this.check()) {\n            // let probe timeout\n            return;\n        }\n        const uri = this.uri();\n        const protocols = this.opts.protocols;\n        // React Native only supports the 'headers' option, and will print a warning if anything else is passed\n        const opts = isReactNative\n            ? {}\n            : pick(this.opts, \"agent\", \"perMessageDeflate\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"localAddress\", \"protocolVersion\", \"origin\", \"maxPayload\", \"family\", \"checkServerIdentity\");\n        if (this.opts.extraHeaders) {\n            opts.headers = this.opts.extraHeaders;\n        }\n        try {\n            this.ws =\n                usingBrowserWebSocket && !isReactNative\n                    ? protocols\n                        ? new WebSocket(uri, protocols)\n                        : new WebSocket(uri)\n                    : new WebSocket(uri, protocols, opts);\n        }\n        catch (err) {\n            return this.emitReserved(\"error\", err);\n        }\n        this.ws.binaryType = this.socket.binaryType;\n        this.addEventListeners();\n    }\n    /**\n     * Adds event listeners to the socket\n     *\n     * @private\n     */\n    addEventListeners() {\n        this.ws.onopen = () => {\n            if (this.opts.autoUnref) {\n                this.ws._socket.unref();\n            }\n            this.onOpen();\n        };\n        this.ws.onclose = (closeEvent) => this.onClose({\n            description: \"websocket connection closed\",\n            context: closeEvent,\n        });\n        this.ws.onmessage = (ev) => this.onData(ev.data);\n        this.ws.onerror = (e) => this.onError(\"websocket error\", e);\n    }\n    write(packets) {\n        this.writable = false;\n        // encodePacket efficient as it uses WS framing\n        // no need for encodePayload\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            encodePacket(packet, this.supportsBinary, (data) => {\n                // always create a new object (GH-437)\n                const opts = {};\n                if (!usingBrowserWebSocket) {\n                    if (packet.options) {\n                        opts.compress = packet.options.compress;\n                    }\n                    if (this.opts.perMessageDeflate) {\n                        const len = \n                        // @ts-ignore\n                        \"string\" === typeof data ? Buffer.byteLength(data) : data.length;\n                        if (len < this.opts.perMessageDeflate.threshold) {\n                            opts.compress = false;\n                        }\n                    }\n                }\n                // Sometimes the websocket has already been closed but the browser didn't\n                // have a chance of informing us about it yet, in that case send will\n                // throw an error\n                try {\n                    if (usingBrowserWebSocket) {\n                        // TypeError is thrown when passing the second argument on Safari\n                        this.ws.send(data);\n                    }\n                    else {\n                        this.ws.send(data, opts);\n                    }\n                }\n                catch (e) {\n                }\n                if (lastPacket) {\n                    // fake drain\n                    // defer to next tick to allow Socket to clear writeBuffer\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        if (typeof this.ws !== \"undefined\") {\n            this.ws.close();\n            this.ws = null;\n        }\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"wss\" : \"ws\";\n        const query = this.query || {};\n        // append timestamp to URI\n        if (this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        // communicate binary support capabilities\n        if (!this.supportsBinary) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Feature detection for WebSocket.\n     *\n     * @return {Boolean} whether this transport is available.\n     * @private\n     */\n    check() {\n        return !!WebSocket;\n    }\n}\n", "import { Transport } from \"../transport.js\";\nimport { nextTick } from \"./websocket-constructor.js\";\nimport { createPacketDecoderStream, createPacketEncoderStream, } from \"engine.io-parser\";\nexport class WT extends Transport {\n    get name() {\n        return \"webtransport\";\n    }\n    doOpen() {\n        // @ts-ignore\n        if (typeof WebTransport !== \"function\") {\n            return;\n        }\n        // @ts-ignore\n        this.transport = new WebTransport(this.createUri(\"https\"), this.opts.transportOptions[this.name]);\n        this.transport.closed\n            .then(() => {\n            this.onClose();\n        })\n            .catch((err) => {\n            this.onError(\"webtransport error\", err);\n        });\n        // note: we could have used async/await, but that would require some additional polyfills\n        this.transport.ready.then(() => {\n            this.transport.createBidirectionalStream().then((stream) => {\n                const decoderStream = createPacketDecoderStream(Number.MAX_SAFE_INTEGER, this.socket.binaryType);\n                const reader = stream.readable.pipeThrough(decoderStream).getReader();\n                const encoderStream = createPacketEncoderStream();\n                encoderStream.readable.pipeTo(stream.writable);\n                this.writer = encoderStream.writable.getWriter();\n                const read = () => {\n                    reader\n                        .read()\n                        .then(({ done, value }) => {\n                        if (done) {\n                            return;\n                        }\n                        this.onPacket(value);\n                        read();\n                    })\n                        .catch((err) => {\n                    });\n                };\n                read();\n                const packet = { type: \"open\" };\n                if (this.query.sid) {\n                    packet.data = `{\"sid\":\"${this.query.sid}\"}`;\n                }\n                this.writer.write(packet).then(() => this.onOpen());\n            });\n        });\n    }\n    write(packets) {\n        this.writable = false;\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            this.writer.write(packet).then(() => {\n                if (lastPacket) {\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        var _a;\n        (_a = this.transport) === null || _a === void 0 ? void 0 : _a.close();\n    }\n}\n", "import { Polling } from \"./polling.js\";\nimport { WS } from \"./websocket.js\";\nimport { WT } from \"./webtransport.js\";\nexport const transports = {\n    websocket: WS,\n    webtransport: WT,\n    polling: Polling,\n};\n", "// imported from https://github.com/galkn/parseuri\n/**\n * Parses a URI\n *\n * Note: we could also have used the built-in URL object, but it isn't supported on all platforms.\n *\n * See:\n * - https://developer.mozilla.org/en-US/docs/Web/API/URL\n * - https://caniuse.com/url\n * - https://www.rfc-editor.org/rfc/rfc3986#appendix-B\n *\n * History of the parse() method:\n * - first commit: https://github.com/socketio/socket.io-client/commit/4ee1d5d94b3906a9c052b459f1a818b15f38f91c\n * - export into its own module: https://github.com/socketio/engine.io-client/commit/de2c561e4564efeb78f1bdb1ba39ef81b2822cb3\n * - reimport: https://github.com/socketio/engine.io-client/commit/df32277c3f6d622eec5ed09f493cae3f3391d242\n *\n * @author Steven Levithan <stevenlevithan.com> (MIT license)\n * @api private\n */\nconst re = /^(?:(?![^:@\\/?#]+:[^:@\\/]*@)(http|https|ws|wss):\\/\\/)?((?:(([^:@\\/?#]*)(?::([^:@\\/?#]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\\/?#]*)(?::(\\d*))?)(((\\/(?:[^?#](?![^?#\\/]*\\.[^?#\\/.]+(?:[?#]|$)))*\\/?)?([^?#\\/]*))(?:\\?([^#]*))?(?:#(.*))?)/;\nconst parts = [\n    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'\n];\nexport function parse(str) {\n    if (str.length > 2000) {\n        throw \"URI too long\";\n    }\n    const src = str, b = str.indexOf('['), e = str.indexOf(']');\n    if (b != -1 && e != -1) {\n        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);\n    }\n    let m = re.exec(str || ''), uri = {}, i = 14;\n    while (i--) {\n        uri[parts[i]] = m[i] || '';\n    }\n    if (b != -1 && e != -1) {\n        uri.source = src;\n        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');\n        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');\n        uri.ipv6uri = true;\n    }\n    uri.pathNames = pathNames(uri, uri['path']);\n    uri.queryKey = queryKey(uri, uri['query']);\n    return uri;\n}\nfunction pathNames(obj, path) {\n    const regx = /\\/{2,9}/g, names = path.replace(regx, \"/\").split(\"/\");\n    if (path.slice(0, 1) == '/' || path.length === 0) {\n        names.splice(0, 1);\n    }\n    if (path.slice(-1) == '/') {\n        names.splice(names.length - 1, 1);\n    }\n    return names;\n}\nfunction queryKey(uri, query) {\n    const data = {};\n    query.replace(/(?:^|&)([^&=]*)=?([^&]*)/g, function ($0, $1, $2) {\n        if ($1) {\n            data[$1] = $2;\n        }\n    });\n    return data;\n}\n", "import { transports } from \"./transports/index.js\";\nimport { installTimerFunctions, byteLength } from \"./util.js\";\nimport { decode } from \"./contrib/parseqs.js\";\nimport { parse } from \"./contrib/parseuri.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { protocol } from \"engine.io-parser\";\nimport { defaultBinaryType } from \"./transports/websocket-constructor.js\";\nexport class Socket extends Emitter {\n    /**\n     * Socket constructor.\n     *\n     * @param {String|Object} uri - uri or options\n     * @param {Object} opts - options\n     */\n    constructor(uri, opts = {}) {\n        super();\n        this.binaryType = defaultBinaryType;\n        this.writeBuffer = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = null;\n        }\n        if (uri) {\n            uri = parse(uri);\n            opts.hostname = uri.host;\n            opts.secure = uri.protocol === \"https\" || uri.protocol === \"wss\";\n            opts.port = uri.port;\n            if (uri.query)\n                opts.query = uri.query;\n        }\n        else if (opts.host) {\n            opts.hostname = parse(opts.host).host;\n        }\n        installTimerFunctions(this, opts);\n        this.secure =\n            null != opts.secure\n                ? opts.secure\n                : typeof location !== \"undefined\" && \"https:\" === location.protocol;\n        if (opts.hostname && !opts.port) {\n            // if no port is specified manually, use the protocol default\n            opts.port = this.secure ? \"443\" : \"80\";\n        }\n        this.hostname =\n            opts.hostname ||\n                (typeof location !== \"undefined\" ? location.hostname : \"localhost\");\n        this.port =\n            opts.port ||\n                (typeof location !== \"undefined\" && location.port\n                    ? location.port\n                    : this.secure\n                        ? \"443\"\n                        : \"80\");\n        this.transports = opts.transports || [\n            \"polling\",\n            \"websocket\",\n            \"webtransport\",\n        ];\n        this.writeBuffer = [];\n        this.prevBufferLen = 0;\n        this.opts = Object.assign({\n            path: \"/engine.io\",\n            agent: false,\n            withCredentials: false,\n            upgrade: true,\n            timestampParam: \"t\",\n            rememberUpgrade: false,\n            addTrailingSlash: true,\n            rejectUnauthorized: true,\n            perMessageDeflate: {\n                threshold: 1024,\n            },\n            transportOptions: {},\n            closeOnBeforeunload: false,\n        }, opts);\n        this.opts.path =\n            this.opts.path.replace(/\\/$/, \"\") +\n                (this.opts.addTrailingSlash ? \"/\" : \"\");\n        if (typeof this.opts.query === \"string\") {\n            this.opts.query = decode(this.opts.query);\n        }\n        // set on handshake\n        this.id = null;\n        this.upgrades = null;\n        this.pingInterval = null;\n        this.pingTimeout = null;\n        // set on heartbeat\n        this.pingTimeoutTimer = null;\n        if (typeof addEventListener === \"function\") {\n            if (this.opts.closeOnBeforeunload) {\n                // Firefox closes the connection when the \"beforeunload\" event is emitted but not Chrome. This event listener\n                // ensures every browser behaves the same (no \"disconnect\" event at the Socket.IO level when the page is\n                // closed/reloaded)\n                this.beforeunloadEventListener = () => {\n                    if (this.transport) {\n                        // silently close the transport\n                        this.transport.removeAllListeners();\n                        this.transport.close();\n                    }\n                };\n                addEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n            }\n            if (this.hostname !== \"localhost\") {\n                this.offlineEventListener = () => {\n                    this.onClose(\"transport close\", {\n                        description: \"network connection lost\",\n                    });\n                };\n                addEventListener(\"offline\", this.offlineEventListener, false);\n            }\n        }\n        this.open();\n    }\n    /**\n     * Creates transport of the given type.\n     *\n     * @param {String} name - transport name\n     * @return {Transport}\n     * @private\n     */\n    createTransport(name) {\n        const query = Object.assign({}, this.opts.query);\n        // append engine.io protocol identifier\n        query.EIO = protocol;\n        // transport name\n        query.transport = name;\n        // session id if we already have one\n        if (this.id)\n            query.sid = this.id;\n        const opts = Object.assign({}, this.opts, {\n            query,\n            socket: this,\n            hostname: this.hostname,\n            secure: this.secure,\n            port: this.port,\n        }, this.opts.transportOptions[name]);\n        return new transports[name](opts);\n    }\n    /**\n     * Initializes transport to use and starts probe.\n     *\n     * @private\n     */\n    open() {\n        let transport;\n        if (this.opts.rememberUpgrade &&\n            Socket.priorWebsocketSuccess &&\n            this.transports.indexOf(\"websocket\") !== -1) {\n            transport = \"websocket\";\n        }\n        else if (0 === this.transports.length) {\n            // Emit error on next tick so it can be listened to\n            this.setTimeoutFn(() => {\n                this.emitReserved(\"error\", \"No transports available\");\n            }, 0);\n            return;\n        }\n        else {\n            transport = this.transports[0];\n        }\n        this.readyState = \"opening\";\n        // Retry with the next transport if the transport is disabled (jsonp: false)\n        try {\n            transport = this.createTransport(transport);\n        }\n        catch (e) {\n            this.transports.shift();\n            this.open();\n            return;\n        }\n        transport.open();\n        this.setTransport(transport);\n    }\n    /**\n     * Sets the current transport. Disables the existing one (if any).\n     *\n     * @private\n     */\n    setTransport(transport) {\n        if (this.transport) {\n            this.transport.removeAllListeners();\n        }\n        // set up transport\n        this.transport = transport;\n        // set up transport listeners\n        transport\n            .on(\"drain\", this.onDrain.bind(this))\n            .on(\"packet\", this.onPacket.bind(this))\n            .on(\"error\", this.onError.bind(this))\n            .on(\"close\", (reason) => this.onClose(\"transport close\", reason));\n    }\n    /**\n     * Probes a transport.\n     *\n     * @param {String} name - transport name\n     * @private\n     */\n    probe(name) {\n        let transport = this.createTransport(name);\n        let failed = false;\n        Socket.priorWebsocketSuccess = false;\n        const onTransportOpen = () => {\n            if (failed)\n                return;\n            transport.send([{ type: \"ping\", data: \"probe\" }]);\n            transport.once(\"packet\", (msg) => {\n                if (failed)\n                    return;\n                if (\"pong\" === msg.type && \"probe\" === msg.data) {\n                    this.upgrading = true;\n                    this.emitReserved(\"upgrading\", transport);\n                    if (!transport)\n                        return;\n                    Socket.priorWebsocketSuccess = \"websocket\" === transport.name;\n                    this.transport.pause(() => {\n                        if (failed)\n                            return;\n                        if (\"closed\" === this.readyState)\n                            return;\n                        cleanup();\n                        this.setTransport(transport);\n                        transport.send([{ type: \"upgrade\" }]);\n                        this.emitReserved(\"upgrade\", transport);\n                        transport = null;\n                        this.upgrading = false;\n                        this.flush();\n                    });\n                }\n                else {\n                    const err = new Error(\"probe error\");\n                    // @ts-ignore\n                    err.transport = transport.name;\n                    this.emitReserved(\"upgradeError\", err);\n                }\n            });\n        };\n        function freezeTransport() {\n            if (failed)\n                return;\n            // Any callback called by transport should be ignored since now\n            failed = true;\n            cleanup();\n            transport.close();\n            transport = null;\n        }\n        // Handle any error that happens while probing\n        const onerror = (err) => {\n            const error = new Error(\"probe error: \" + err);\n            // @ts-ignore\n            error.transport = transport.name;\n            freezeTransport();\n            this.emitReserved(\"upgradeError\", error);\n        };\n        function onTransportClose() {\n            onerror(\"transport closed\");\n        }\n        // When the socket is closed while we're probing\n        function onclose() {\n            onerror(\"socket closed\");\n        }\n        // When the socket is upgraded while we're probing\n        function onupgrade(to) {\n            if (transport && to.name !== transport.name) {\n                freezeTransport();\n            }\n        }\n        // Remove all listeners on the transport and on self\n        const cleanup = () => {\n            transport.removeListener(\"open\", onTransportOpen);\n            transport.removeListener(\"error\", onerror);\n            transport.removeListener(\"close\", onTransportClose);\n            this.off(\"close\", onclose);\n            this.off(\"upgrading\", onupgrade);\n        };\n        transport.once(\"open\", onTransportOpen);\n        transport.once(\"error\", onerror);\n        transport.once(\"close\", onTransportClose);\n        this.once(\"close\", onclose);\n        this.once(\"upgrading\", onupgrade);\n        if (this.upgrades.indexOf(\"webtransport\") !== -1 &&\n            name !== \"webtransport\") {\n            // favor WebTransport\n            this.setTimeoutFn(() => {\n                if (!failed) {\n                    transport.open();\n                }\n            }, 200);\n        }\n        else {\n            transport.open();\n        }\n    }\n    /**\n     * Called when connection is deemed open.\n     *\n     * @private\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        Socket.priorWebsocketSuccess = \"websocket\" === this.transport.name;\n        this.emitReserved(\"open\");\n        this.flush();\n        // we check for `readyState` in case an `open`\n        // listener already closed the socket\n        if (\"open\" === this.readyState && this.opts.upgrade) {\n            let i = 0;\n            const l = this.upgrades.length;\n            for (; i < l; i++) {\n                this.probe(this.upgrades[i]);\n            }\n        }\n    }\n    /**\n     * Handles a packet.\n     *\n     * @private\n     */\n    onPacket(packet) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            this.emitReserved(\"packet\", packet);\n            // Socket is live - any packet counts\n            this.emitReserved(\"heartbeat\");\n            this.resetPingTimeout();\n            switch (packet.type) {\n                case \"open\":\n                    this.onHandshake(JSON.parse(packet.data));\n                    break;\n                case \"ping\":\n                    this.sendPacket(\"pong\");\n                    this.emitReserved(\"ping\");\n                    this.emitReserved(\"pong\");\n                    break;\n                case \"error\":\n                    const err = new Error(\"server error\");\n                    // @ts-ignore\n                    err.code = packet.data;\n                    this.onError(err);\n                    break;\n                case \"message\":\n                    this.emitReserved(\"data\", packet.data);\n                    this.emitReserved(\"message\", packet.data);\n                    break;\n            }\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon handshake completion.\n     *\n     * @param {Object} data - handshake obj\n     * @private\n     */\n    onHandshake(data) {\n        this.emitReserved(\"handshake\", data);\n        this.id = data.sid;\n        this.transport.query.sid = data.sid;\n        this.upgrades = this.filterUpgrades(data.upgrades);\n        this.pingInterval = data.pingInterval;\n        this.pingTimeout = data.pingTimeout;\n        this.maxPayload = data.maxPayload;\n        this.onOpen();\n        // In case open handler closes socket\n        if (\"closed\" === this.readyState)\n            return;\n        this.resetPingTimeout();\n    }\n    /**\n     * Sets and resets ping timeout timer based on server pings.\n     *\n     * @private\n     */\n    resetPingTimeout() {\n        this.clearTimeoutFn(this.pingTimeoutTimer);\n        this.pingTimeoutTimer = this.setTimeoutFn(() => {\n            this.onClose(\"ping timeout\");\n        }, this.pingInterval + this.pingTimeout);\n        if (this.opts.autoUnref) {\n            this.pingTimeoutTimer.unref();\n        }\n    }\n    /**\n     * Called on `drain` event\n     *\n     * @private\n     */\n    onDrain() {\n        this.writeBuffer.splice(0, this.prevBufferLen);\n        // setting prevBufferLen = 0 is very important\n        // for example, when upgrading, upgrade packet is sent over,\n        // and a nonzero prevBufferLen could cause problems on `drain`\n        this.prevBufferLen = 0;\n        if (0 === this.writeBuffer.length) {\n            this.emitReserved(\"drain\");\n        }\n        else {\n            this.flush();\n        }\n    }\n    /**\n     * Flush write buffers.\n     *\n     * @private\n     */\n    flush() {\n        if (\"closed\" !== this.readyState &&\n            this.transport.writable &&\n            !this.upgrading &&\n            this.writeBuffer.length) {\n            const packets = this.getWritablePackets();\n            this.transport.send(packets);\n            // keep track of current length of writeBuffer\n            // splice writeBuffer and callbackBuffer on `drain`\n            this.prevBufferLen = packets.length;\n            this.emitReserved(\"flush\");\n        }\n    }\n    /**\n     * Ensure the encoded size of the writeBuffer is below the maxPayload value sent by the server (only for HTTP\n     * long-polling)\n     *\n     * @private\n     */\n    getWritablePackets() {\n        const shouldCheckPayloadSize = this.maxPayload &&\n            this.transport.name === \"polling\" &&\n            this.writeBuffer.length > 1;\n        if (!shouldCheckPayloadSize) {\n            return this.writeBuffer;\n        }\n        let payloadSize = 1; // first packet type\n        for (let i = 0; i < this.writeBuffer.length; i++) {\n            const data = this.writeBuffer[i].data;\n            if (data) {\n                payloadSize += byteLength(data);\n            }\n            if (i > 0 && payloadSize > this.maxPayload) {\n                return this.writeBuffer.slice(0, i);\n            }\n            payloadSize += 2; // separator + packet type\n        }\n        return this.writeBuffer;\n    }\n    /**\n     * Sends a message.\n     *\n     * @param {String} msg - message.\n     * @param {Object} options.\n     * @param {Function} callback function.\n     * @return {Socket} for chaining.\n     */\n    write(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    send(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param {String} type: packet type.\n     * @param {String} data.\n     * @param {Object} options.\n     * @param {Function} fn - callback function.\n     * @private\n     */\n    sendPacket(type, data, options, fn) {\n        if (\"function\" === typeof data) {\n            fn = data;\n            data = undefined;\n        }\n        if (\"function\" === typeof options) {\n            fn = options;\n            options = null;\n        }\n        if (\"closing\" === this.readyState || \"closed\" === this.readyState) {\n            return;\n        }\n        options = options || {};\n        options.compress = false !== options.compress;\n        const packet = {\n            type: type,\n            data: data,\n            options: options,\n        };\n        this.emitReserved(\"packetCreate\", packet);\n        this.writeBuffer.push(packet);\n        if (fn)\n            this.once(\"flush\", fn);\n        this.flush();\n    }\n    /**\n     * Closes the connection.\n     */\n    close() {\n        const close = () => {\n            this.onClose(\"forced close\");\n            this.transport.close();\n        };\n        const cleanupAndClose = () => {\n            this.off(\"upgrade\", cleanupAndClose);\n            this.off(\"upgradeError\", cleanupAndClose);\n            close();\n        };\n        const waitForUpgrade = () => {\n            // wait for upgrade to finish since we can't send packets while pausing a transport\n            this.once(\"upgrade\", cleanupAndClose);\n            this.once(\"upgradeError\", cleanupAndClose);\n        };\n        if (\"opening\" === this.readyState || \"open\" === this.readyState) {\n            this.readyState = \"closing\";\n            if (this.writeBuffer.length) {\n                this.once(\"drain\", () => {\n                    if (this.upgrading) {\n                        waitForUpgrade();\n                    }\n                    else {\n                        close();\n                    }\n                });\n            }\n            else if (this.upgrading) {\n                waitForUpgrade();\n            }\n            else {\n                close();\n            }\n        }\n        return this;\n    }\n    /**\n     * Called upon transport error\n     *\n     * @private\n     */\n    onError(err) {\n        Socket.priorWebsocketSuccess = false;\n        this.emitReserved(\"error\", err);\n        this.onClose(\"transport error\", err);\n    }\n    /**\n     * Called upon transport close.\n     *\n     * @private\n     */\n    onClose(reason, description) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            // clear timers\n            this.clearTimeoutFn(this.pingTimeoutTimer);\n            // stop event from firing again for transport\n            this.transport.removeAllListeners(\"close\");\n            // ensure transport won't stay open\n            this.transport.close();\n            // ignore further transport communication\n            this.transport.removeAllListeners();\n            if (typeof removeEventListener === \"function\") {\n                removeEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n                removeEventListener(\"offline\", this.offlineEventListener, false);\n            }\n            // set ready state\n            this.readyState = \"closed\";\n            // clear session id\n            this.id = null;\n            // emit close event\n            this.emitReserved(\"close\", reason, description);\n            // clean buffers after, so users can still\n            // grab the buffers on `close` event\n            this.writeBuffer = [];\n            this.prevBufferLen = 0;\n        }\n    }\n    /**\n     * Filters upgrades, returning only those matching client transports.\n     *\n     * @param {Array} upgrades - server upgrades\n     * @private\n     */\n    filterUpgrades(upgrades) {\n        const filteredUpgrades = [];\n        let i = 0;\n        const j = upgrades.length;\n        for (; i < j; i++) {\n            if (~this.transports.indexOf(upgrades[i]))\n                filteredUpgrades.push(upgrades[i]);\n        }\n        return filteredUpgrades;\n    }\n}\nSocket.protocol = protocol;\n", "import { Socket } from \"./socket.js\";\nexport { Socket };\nexport const protocol = Socket.protocol;\nexport { Transport, TransportError } from \"./transport.js\";\nexport { transports } from \"./transports/index.js\";\nexport { installTimerFunctions } from \"./util.js\";\nexport { parse } from \"./contrib/parseuri.js\";\nexport { nextTick } from \"./transports/websocket-constructor.js\";\n", "import { parse } from \"engine.io-client\";\n/**\n * URL parser.\n *\n * @param uri - url\n * @param path - the request path of the connection\n * @param loc - An object meant to mimic window.location.\n *        Defaults to window.location.\n * @public\n */\nexport function url(uri, path = \"\", loc) {\n    let obj = uri;\n    // default to window.location\n    loc = loc || (typeof location !== \"undefined\" && location);\n    if (null == uri)\n        uri = loc.protocol + \"//\" + loc.host;\n    // relative path support\n    if (typeof uri === \"string\") {\n        if (\"/\" === uri.charAt(0)) {\n            if (\"/\" === uri.charAt(1)) {\n                uri = loc.protocol + uri;\n            }\n            else {\n                uri = loc.host + uri;\n            }\n        }\n        if (!/^(https?|wss?):\\/\\//.test(uri)) {\n            if (\"undefined\" !== typeof loc) {\n                uri = loc.protocol + \"//\" + uri;\n            }\n            else {\n                uri = \"https://\" + uri;\n            }\n        }\n        // parse\n        obj = parse(uri);\n    }\n    // make sure we treat `localhost:80` and `localhost` equally\n    if (!obj.port) {\n        if (/^(http|ws)$/.test(obj.protocol)) {\n            obj.port = \"80\";\n        }\n        else if (/^(http|ws)s$/.test(obj.protocol)) {\n            obj.port = \"443\";\n        }\n    }\n    obj.path = obj.path || \"/\";\n    const ipv6 = obj.host.indexOf(\":\") !== -1;\n    const host = ipv6 ? \"[\" + obj.host + \"]\" : obj.host;\n    // define unique id\n    obj.id = obj.protocol + \"://\" + host + \":\" + obj.port + path;\n    // define href\n    obj.href =\n        obj.protocol +\n            \"://\" +\n            host +\n            (loc && loc.port === obj.port ? \"\" : \":\" + obj.port);\n    return obj;\n}\n", "import { Emitter } from \"@socket.io/component-emitter\";\nimport { deconstructPacket, reconstructPacket } from \"./binary.js\";\nimport { isBinary, hasBinary } from \"./is-binary.js\";\n/**\n * These strings must not be used as event names, as they have a special meaning.\n */\nconst RESERVED_EVENTS = [\n    \"connect\",\n    \"connect_error\",\n    \"disconnect\",\n    \"disconnecting\",\n    \"newListener\",\n    \"removeListener\", // used by the Node.js EventEmitter\n];\n/**\n * Protocol version.\n *\n * @public\n */\nexport const protocol = 5;\nexport var PacketType;\n(function (PacketType) {\n    PacketType[PacketType[\"CONNECT\"] = 0] = \"CONNECT\";\n    PacketType[PacketType[\"DISCONNECT\"] = 1] = \"DISCONNECT\";\n    PacketType[PacketType[\"EVENT\"] = 2] = \"EVENT\";\n    PacketType[PacketType[\"ACK\"] = 3] = \"ACK\";\n    PacketType[PacketType[\"CONNECT_ERROR\"] = 4] = \"CONNECT_ERROR\";\n    PacketType[PacketType[\"BINARY_EVENT\"] = 5] = \"BINARY_EVENT\";\n    PacketType[PacketType[\"BINARY_ACK\"] = 6] = \"BINARY_ACK\";\n})(PacketType || (PacketType = {}));\n/**\n * A socket.io Encoder instance\n */\nexport class Encoder {\n    /**\n     * Encoder constructor\n     *\n     * @param {function} replacer - custom replacer to pass down to JSON.parse\n     */\n    constructor(replacer) {\n        this.replacer = replacer;\n    }\n    /**\n     * Encode a packet as a single string if non-binary, or as a\n     * buffer sequence, depending on packet type.\n     *\n     * @param {Object} obj - packet object\n     */\n    encode(obj) {\n        if (obj.type === PacketType.EVENT || obj.type === PacketType.ACK) {\n            if (hasBinary(obj)) {\n                return this.encodeAsBinary({\n                    type: obj.type === PacketType.EVENT\n                        ? PacketType.BINARY_EVENT\n                        : PacketType.BINARY_ACK,\n                    nsp: obj.nsp,\n                    data: obj.data,\n                    id: obj.id,\n                });\n            }\n        }\n        return [this.encodeAsString(obj)];\n    }\n    /**\n     * Encode packet as string.\n     */\n    encodeAsString(obj) {\n        // first is type\n        let str = \"\" + obj.type;\n        // attachments if we have them\n        if (obj.type === PacketType.BINARY_EVENT ||\n            obj.type === PacketType.BINARY_ACK) {\n            str += obj.attachments + \"-\";\n        }\n        // if we have a namespace other than `/`\n        // we append it followed by a comma `,`\n        if (obj.nsp && \"/\" !== obj.nsp) {\n            str += obj.nsp + \",\";\n        }\n        // immediately followed by the id\n        if (null != obj.id) {\n            str += obj.id;\n        }\n        // json data\n        if (null != obj.data) {\n            str += JSON.stringify(obj.data, this.replacer);\n        }\n        return str;\n    }\n    /**\n     * Encode packet as 'buffer sequence' by removing blobs, and\n     * deconstructing packet into object with placeholders and\n     * a list of buffers.\n     */\n    encodeAsBinary(obj) {\n        const deconstruction = deconstructPacket(obj);\n        const pack = this.encodeAsString(deconstruction.packet);\n        const buffers = deconstruction.buffers;\n        buffers.unshift(pack); // add packet info to beginning of data list\n        return buffers; // write all the buffers\n    }\n}\n// see https://stackoverflow.com/questions/8511281/check-if-a-value-is-an-object-in-javascript\nfunction isObject(value) {\n    return Object.prototype.toString.call(value) === \"[object Object]\";\n}\n/**\n * A socket.io Decoder instance\n *\n * @return {Object} decoder\n */\nexport class Decoder extends Emitter {\n    /**\n     * Decoder constructor\n     *\n     * @param {function} reviver - custom reviver to pass down to JSON.stringify\n     */\n    constructor(reviver) {\n        super();\n        this.reviver = reviver;\n    }\n    /**\n     * Decodes an encoded packet string into packet JSON.\n     *\n     * @param {String} obj - encoded packet\n     */\n    add(obj) {\n        let packet;\n        if (typeof obj === \"string\") {\n            if (this.reconstructor) {\n                throw new Error(\"got plaintext data when reconstructing a packet\");\n            }\n            packet = this.decodeString(obj);\n            const isBinaryEvent = packet.type === PacketType.BINARY_EVENT;\n            if (isBinaryEvent || packet.type === PacketType.BINARY_ACK) {\n                packet.type = isBinaryEvent ? PacketType.EVENT : PacketType.ACK;\n                // binary packet's json\n                this.reconstructor = new BinaryReconstructor(packet);\n                // no attachments, labeled binary but no binary data to follow\n                if (packet.attachments === 0) {\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n            else {\n                // non-binary full packet\n                super.emitReserved(\"decoded\", packet);\n            }\n        }\n        else if (isBinary(obj) || obj.base64) {\n            // raw binary data\n            if (!this.reconstructor) {\n                throw new Error(\"got binary data when not reconstructing a packet\");\n            }\n            else {\n                packet = this.reconstructor.takeBinaryData(obj);\n                if (packet) {\n                    // received final buffer\n                    this.reconstructor = null;\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n        }\n        else {\n            throw new Error(\"Unknown type: \" + obj);\n        }\n    }\n    /**\n     * Decode a packet String (JSON data)\n     *\n     * @param {String} str\n     * @return {Object} packet\n     */\n    decodeString(str) {\n        let i = 0;\n        // look up type\n        const p = {\n            type: Number(str.charAt(0)),\n        };\n        if (PacketType[p.type] === undefined) {\n            throw new Error(\"unknown packet type \" + p.type);\n        }\n        // look up attachments if type binary\n        if (p.type === PacketType.BINARY_EVENT ||\n            p.type === PacketType.BINARY_ACK) {\n            const start = i + 1;\n            while (str.charAt(++i) !== \"-\" && i != str.length) { }\n            const buf = str.substring(start, i);\n            if (buf != Number(buf) || str.charAt(i) !== \"-\") {\n                throw new Error(\"Illegal attachments\");\n            }\n            p.attachments = Number(buf);\n        }\n        // look up namespace (if any)\n        if (\"/\" === str.charAt(i + 1)) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (\",\" === c)\n                    break;\n                if (i === str.length)\n                    break;\n            }\n            p.nsp = str.substring(start, i);\n        }\n        else {\n            p.nsp = \"/\";\n        }\n        // look up id\n        const next = str.charAt(i + 1);\n        if (\"\" !== next && Number(next) == next) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (null == c || Number(c) != c) {\n                    --i;\n                    break;\n                }\n                if (i === str.length)\n                    break;\n            }\n            p.id = Number(str.substring(start, i + 1));\n        }\n        // look up json data\n        if (str.charAt(++i)) {\n            const payload = this.tryParse(str.substr(i));\n            if (Decoder.isPayloadValid(p.type, payload)) {\n                p.data = payload;\n            }\n            else {\n                throw new Error(\"invalid payload\");\n            }\n        }\n        return p;\n    }\n    tryParse(str) {\n        try {\n            return JSON.parse(str, this.reviver);\n        }\n        catch (e) {\n            return false;\n        }\n    }\n    static isPayloadValid(type, payload) {\n        switch (type) {\n            case PacketType.CONNECT:\n                return isObject(payload);\n            case PacketType.DISCONNECT:\n                return payload === undefined;\n            case PacketType.CONNECT_ERROR:\n                return typeof payload === \"string\" || isObject(payload);\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                return (Array.isArray(payload) &&\n                    (typeof payload[0] === \"number\" ||\n                        (typeof payload[0] === \"string\" &&\n                            RESERVED_EVENTS.indexOf(payload[0]) === -1)));\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                return Array.isArray(payload);\n        }\n    }\n    /**\n     * Deallocates a parser's resources\n     */\n    destroy() {\n        if (this.reconstructor) {\n            this.reconstructor.finishedReconstruction();\n            this.reconstructor = null;\n        }\n    }\n}\n/**\n * A manager of a binary event's 'buffer sequence'. Should\n * be constructed whenever a packet of type BINARY_EVENT is\n * decoded.\n *\n * @param {Object} packet\n * @return {BinaryReconstructor} initialized reconstructor\n */\nclass BinaryReconstructor {\n    constructor(packet) {\n        this.packet = packet;\n        this.buffers = [];\n        this.reconPack = packet;\n    }\n    /**\n     * Method to be called when binary data received from connection\n     * after a BINARY_EVENT packet.\n     *\n     * @param {Buffer | ArrayBuffer} binData - the raw binary data received\n     * @return {null | Object} returns null if more binary data is expected or\n     *   a reconstructed packet object if all buffers have been received.\n     */\n    takeBinaryData(binData) {\n        this.buffers.push(binData);\n        if (this.buffers.length === this.reconPack.attachments) {\n            // done with buffer list\n            const packet = reconstructPacket(this.reconPack, this.buffers);\n            this.finishedReconstruction();\n            return packet;\n        }\n        return null;\n    }\n    /**\n     * Cleans up binary packet reconstruction variables.\n     */\n    finishedReconstruction() {\n        this.reconPack = null;\n        this.buffers = [];\n    }\n}\n", "const withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nconst isView = (obj) => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj.buffer instanceof ArrayBuffer;\n};\nconst toString = Object.prototype.toString;\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeFile = typeof File === \"function\" ||\n    (typeof File !== \"undefined\" &&\n        toString.call(File) === \"[object FileConstructor]\");\n/**\n * Returns true if obj is a Buffer, an ArrayBuffer, a Blob or a File.\n *\n * @private\n */\nexport function isBinary(obj) {\n    return ((withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj))) ||\n        (withNativeBlob && obj instanceof Blob) ||\n        (withNativeFile && obj instanceof File));\n}\nexport function hasBinary(obj, toJSON) {\n    if (!obj || typeof obj !== \"object\") {\n        return false;\n    }\n    if (Array.isArray(obj)) {\n        for (let i = 0, l = obj.length; i < l; i++) {\n            if (hasBinary(obj[i])) {\n                return true;\n            }\n        }\n        return false;\n    }\n    if (isBinary(obj)) {\n        return true;\n    }\n    if (obj.toJSON &&\n        typeof obj.toJSON === \"function\" &&\n        arguments.length === 1) {\n        return hasBinary(obj.toJSON(), true);\n    }\n    for (const key in obj) {\n        if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {\n            return true;\n        }\n    }\n    return false;\n}\n", "import { isBinary } from \"./is-binary.js\";\n/**\n * Replaces every Buffer | ArrayBuffer | Blob | File in packet with a numbered placeholder.\n *\n * @param {Object} packet - socket.io event packet\n * @return {Object} with deconstructed packet and list of buffers\n * @public\n */\nexport function deconstructPacket(packet) {\n    const buffers = [];\n    const packetData = packet.data;\n    const pack = packet;\n    pack.data = _deconstructPacket(packetData, buffers);\n    pack.attachments = buffers.length; // number of binary 'attachments'\n    return { packet: pack, buffers: buffers };\n}\nfunction _deconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (isBinary(data)) {\n        const placeholder = { _placeholder: true, num: buffers.length };\n        buffers.push(data);\n        return placeholder;\n    }\n    else if (Array.isArray(data)) {\n        const newData = new Array(data.length);\n        for (let i = 0; i < data.length; i++) {\n            newData[i] = _deconstructPacket(data[i], buffers);\n        }\n        return newData;\n    }\n    else if (typeof data === \"object\" && !(data instanceof Date)) {\n        const newData = {};\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                newData[key] = _deconstructPacket(data[key], buffers);\n            }\n        }\n        return newData;\n    }\n    return data;\n}\n/**\n * Reconstructs a binary packet from its placeholder packet and buffers\n *\n * @param {Object} packet - event packet with placeholders\n * @param {Array} buffers - binary buffers to put in placeholder positions\n * @return {Object} reconstructed packet\n * @public\n */\nexport function reconstructPacket(packet, buffers) {\n    packet.data = _reconstructPacket(packet.data, buffers);\n    delete packet.attachments; // no longer useful\n    return packet;\n}\nfunction _reconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (data && data._placeholder === true) {\n        const isIndexValid = typeof data.num === \"number\" &&\n            data.num >= 0 &&\n            data.num < buffers.length;\n        if (isIndexValid) {\n            return buffers[data.num]; // appropriate buffer (should be natural order anyway)\n        }\n        else {\n            throw new Error(\"illegal attachments\");\n        }\n    }\n    else if (Array.isArray(data)) {\n        for (let i = 0; i < data.length; i++) {\n            data[i] = _reconstructPacket(data[i], buffers);\n        }\n    }\n    else if (typeof data === \"object\") {\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                data[key] = _reconstructPacket(data[key], buffers);\n            }\n        }\n    }\n    return data;\n}\n", "export function on(obj, ev, fn) {\n    obj.on(ev, fn);\n    return function subDestroy() {\n        obj.off(ev, fn);\n    };\n}\n", "import { PacketType } from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\n/**\n * Internal events.\n * These events can't be emitted by the user.\n */\nconst RESERVED_EVENTS = Object.freeze({\n    connect: 1,\n    connect_error: 1,\n    disconnect: 1,\n    disconnecting: 1,\n    // EventEmitter reserved events: https://nodejs.org/api/events.html#events_event_newlistener\n    newListener: 1,\n    removeListener: 1,\n});\n/**\n * A Socket is the fundamental class for interacting with the server.\n *\n * A Socket belongs to a certain Namespace (by default /) and uses an underlying {@link Manager} to communicate.\n *\n * @example\n * const socket = io();\n *\n * socket.on(\"connect\", () => {\n *   console.log(\"connected\");\n * });\n *\n * // send an event to the server\n * socket.emit(\"foo\", \"bar\");\n *\n * socket.on(\"foobar\", () => {\n *   // an event was received from the server\n * });\n *\n * // upon disconnection\n * socket.on(\"disconnect\", (reason) => {\n *   console.log(`disconnected due to ${reason}`);\n * });\n */\nexport class Socket extends Emitter {\n    /**\n     * `Socket` constructor.\n     */\n    constructor(io, nsp, opts) {\n        super();\n        /**\n         * Whether the socket is currently connected to the server.\n         *\n         * @example\n         * const socket = io();\n         *\n         * socket.on(\"connect\", () => {\n         *   console.log(socket.connected); // true\n         * });\n         *\n         * socket.on(\"disconnect\", () => {\n         *   console.log(socket.connected); // false\n         * });\n         */\n        this.connected = false;\n        /**\n         * Whether the connection state was recovered after a temporary disconnection. In that case, any missed packets will\n         * be transmitted by the server.\n         */\n        this.recovered = false;\n        /**\n         * Buffer for packets received before the CONNECT packet\n         */\n        this.receiveBuffer = [];\n        /**\n         * Buffer for packets that will be sent once the socket is connected\n         */\n        this.sendBuffer = [];\n        /**\n         * The queue of packets to be sent with retry in case of failure.\n         *\n         * Packets are sent one by one, each waiting for the server acknowledgement, in order to guarantee the delivery order.\n         * @private\n         */\n        this._queue = [];\n        /**\n         * A sequence to generate the ID of the {@link QueuedPacket}.\n         * @private\n         */\n        this._queueSeq = 0;\n        this.ids = 0;\n        this.acks = {};\n        this.flags = {};\n        this.io = io;\n        this.nsp = nsp;\n        if (opts && opts.auth) {\n            this.auth = opts.auth;\n        }\n        this._opts = Object.assign({}, opts);\n        if (this.io._autoConnect)\n            this.open();\n    }\n    /**\n     * Whether the socket is currently disconnected\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"connect\", () => {\n     *   console.log(socket.disconnected); // false\n     * });\n     *\n     * socket.on(\"disconnect\", () => {\n     *   console.log(socket.disconnected); // true\n     * });\n     */\n    get disconnected() {\n        return !this.connected;\n    }\n    /**\n     * Subscribe to open, close and packet events\n     *\n     * @private\n     */\n    subEvents() {\n        if (this.subs)\n            return;\n        const io = this.io;\n        this.subs = [\n            on(io, \"open\", this.onopen.bind(this)),\n            on(io, \"packet\", this.onpacket.bind(this)),\n            on(io, \"error\", this.onerror.bind(this)),\n            on(io, \"close\", this.onclose.bind(this)),\n        ];\n    }\n    /**\n     * Whether the Socket will try to reconnect when its Manager connects or reconnects.\n     *\n     * @example\n     * const socket = io();\n     *\n     * console.log(socket.active); // true\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   if (reason === \"io server disconnect\") {\n     *     // the disconnection was initiated by the server, you need to manually reconnect\n     *     console.log(socket.active); // false\n     *   }\n     *   // else the socket will automatically try to reconnect\n     *   console.log(socket.active); // true\n     * });\n     */\n    get active() {\n        return !!this.subs;\n    }\n    /**\n     * \"Opens\" the socket.\n     *\n     * @example\n     * const socket = io({\n     *   autoConnect: false\n     * });\n     *\n     * socket.connect();\n     */\n    connect() {\n        if (this.connected)\n            return this;\n        this.subEvents();\n        if (!this.io[\"_reconnecting\"])\n            this.io.open(); // ensure open\n        if (\"open\" === this.io._readyState)\n            this.onopen();\n        return this;\n    }\n    /**\n     * Alias for {@link connect()}.\n     */\n    open() {\n        return this.connect();\n    }\n    /**\n     * Sends a `message` event.\n     *\n     * This method mimics the WebSocket.send() method.\n     *\n     * @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send\n     *\n     * @example\n     * socket.send(\"hello\");\n     *\n     * // this is equivalent to\n     * socket.emit(\"message\", \"hello\");\n     *\n     * @return self\n     */\n    send(...args) {\n        args.unshift(\"message\");\n        this.emit.apply(this, args);\n        return this;\n    }\n    /**\n     * Override `emit`.\n     * If the event is in `events`, it's emitted normally.\n     *\n     * @example\n     * socket.emit(\"hello\", \"world\");\n     *\n     * // all serializable datastructures are supported (no need to call JSON.stringify)\n     * socket.emit(\"hello\", 1, \"2\", { 3: [\"4\"], 5: Uint8Array.from([6]) });\n     *\n     * // with an acknowledgement from the server\n     * socket.emit(\"hello\", \"world\", (val) => {\n     *   // ...\n     * });\n     *\n     * @return self\n     */\n    emit(ev, ...args) {\n        if (RESERVED_EVENTS.hasOwnProperty(ev)) {\n            throw new Error('\"' + ev.toString() + '\" is a reserved event name');\n        }\n        args.unshift(ev);\n        if (this._opts.retries && !this.flags.fromQueue && !this.flags.volatile) {\n            this._addToQueue(args);\n            return this;\n        }\n        const packet = {\n            type: PacketType.EVENT,\n            data: args,\n        };\n        packet.options = {};\n        packet.options.compress = this.flags.compress !== false;\n        // event ack callback\n        if (\"function\" === typeof args[args.length - 1]) {\n            const id = this.ids++;\n            const ack = args.pop();\n            this._registerAckCallback(id, ack);\n            packet.id = id;\n        }\n        const isTransportWritable = this.io.engine &&\n            this.io.engine.transport &&\n            this.io.engine.transport.writable;\n        const discardPacket = this.flags.volatile && (!isTransportWritable || !this.connected);\n        if (discardPacket) {\n        }\n        else if (this.connected) {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        }\n        else {\n            this.sendBuffer.push(packet);\n        }\n        this.flags = {};\n        return this;\n    }\n    /**\n     * @private\n     */\n    _registerAckCallback(id, ack) {\n        var _a;\n        const timeout = (_a = this.flags.timeout) !== null && _a !== void 0 ? _a : this._opts.ackTimeout;\n        if (timeout === undefined) {\n            this.acks[id] = ack;\n            return;\n        }\n        // @ts-ignore\n        const timer = this.io.setTimeoutFn(() => {\n            delete this.acks[id];\n            for (let i = 0; i < this.sendBuffer.length; i++) {\n                if (this.sendBuffer[i].id === id) {\n                    this.sendBuffer.splice(i, 1);\n                }\n            }\n            ack.call(this, new Error(\"operation has timed out\"));\n        }, timeout);\n        this.acks[id] = (...args) => {\n            // @ts-ignore\n            this.io.clearTimeoutFn(timer);\n            ack.apply(this, [null, ...args]);\n        };\n    }\n    /**\n     * Emits an event and waits for an acknowledgement\n     *\n     * @example\n     * // without timeout\n     * const response = await socket.emitWithAck(\"hello\", \"world\");\n     *\n     * // with a specific timeout\n     * try {\n     *   const response = await socket.timeout(1000).emitWithAck(\"hello\", \"world\");\n     * } catch (err) {\n     *   // the server did not acknowledge the event in the given delay\n     * }\n     *\n     * @return a Promise that will be fulfilled when the server acknowledges the event\n     */\n    emitWithAck(ev, ...args) {\n        // the timeout flag is optional\n        const withErr = this.flags.timeout !== undefined || this._opts.ackTimeout !== undefined;\n        return new Promise((resolve, reject) => {\n            args.push((arg1, arg2) => {\n                if (withErr) {\n                    return arg1 ? reject(arg1) : resolve(arg2);\n                }\n                else {\n                    return resolve(arg1);\n                }\n            });\n            this.emit(ev, ...args);\n        });\n    }\n    /**\n     * Add the packet to the queue.\n     * @param args\n     * @private\n     */\n    _addToQueue(args) {\n        let ack;\n        if (typeof args[args.length - 1] === \"function\") {\n            ack = args.pop();\n        }\n        const packet = {\n            id: this._queueSeq++,\n            tryCount: 0,\n            pending: false,\n            args,\n            flags: Object.assign({ fromQueue: true }, this.flags),\n        };\n        args.push((err, ...responseArgs) => {\n            if (packet !== this._queue[0]) {\n                // the packet has already been acknowledged\n                return;\n            }\n            const hasError = err !== null;\n            if (hasError) {\n                if (packet.tryCount > this._opts.retries) {\n                    this._queue.shift();\n                    if (ack) {\n                        ack(err);\n                    }\n                }\n            }\n            else {\n                this._queue.shift();\n                if (ack) {\n                    ack(null, ...responseArgs);\n                }\n            }\n            packet.pending = false;\n            return this._drainQueue();\n        });\n        this._queue.push(packet);\n        this._drainQueue();\n    }\n    /**\n     * Send the first packet of the queue, and wait for an acknowledgement from the server.\n     * @param force - whether to resend a packet that has not been acknowledged yet\n     *\n     * @private\n     */\n    _drainQueue(force = false) {\n        if (!this.connected || this._queue.length === 0) {\n            return;\n        }\n        const packet = this._queue[0];\n        if (packet.pending && !force) {\n            return;\n        }\n        packet.pending = true;\n        packet.tryCount++;\n        this.flags = packet.flags;\n        this.emit.apply(this, packet.args);\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param packet\n     * @private\n     */\n    packet(packet) {\n        packet.nsp = this.nsp;\n        this.io._packet(packet);\n    }\n    /**\n     * Called upon engine `open`.\n     *\n     * @private\n     */\n    onopen() {\n        if (typeof this.auth == \"function\") {\n            this.auth((data) => {\n                this._sendConnectPacket(data);\n            });\n        }\n        else {\n            this._sendConnectPacket(this.auth);\n        }\n    }\n    /**\n     * Sends a CONNECT packet to initiate the Socket.IO session.\n     *\n     * @param data\n     * @private\n     */\n    _sendConnectPacket(data) {\n        this.packet({\n            type: PacketType.CONNECT,\n            data: this._pid\n                ? Object.assign({ pid: this._pid, offset: this._lastOffset }, data)\n                : data,\n        });\n    }\n    /**\n     * Called upon engine or manager `error`.\n     *\n     * @param err\n     * @private\n     */\n    onerror(err) {\n        if (!this.connected) {\n            this.emitReserved(\"connect_error\", err);\n        }\n    }\n    /**\n     * Called upon engine `close`.\n     *\n     * @param reason\n     * @param description\n     * @private\n     */\n    onclose(reason, description) {\n        this.connected = false;\n        delete this.id;\n        this.emitReserved(\"disconnect\", reason, description);\n    }\n    /**\n     * Called with socket packet.\n     *\n     * @param packet\n     * @private\n     */\n    onpacket(packet) {\n        const sameNamespace = packet.nsp === this.nsp;\n        if (!sameNamespace)\n            return;\n        switch (packet.type) {\n            case PacketType.CONNECT:\n                if (packet.data && packet.data.sid) {\n                    this.onconnect(packet.data.sid, packet.data.pid);\n                }\n                else {\n                    this.emitReserved(\"connect_error\", new Error(\"It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)\"));\n                }\n                break;\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                this.onevent(packet);\n                break;\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                this.onack(packet);\n                break;\n            case PacketType.DISCONNECT:\n                this.ondisconnect();\n                break;\n            case PacketType.CONNECT_ERROR:\n                this.destroy();\n                const err = new Error(packet.data.message);\n                // @ts-ignore\n                err.data = packet.data.data;\n                this.emitReserved(\"connect_error\", err);\n                break;\n        }\n    }\n    /**\n     * Called upon a server event.\n     *\n     * @param packet\n     * @private\n     */\n    onevent(packet) {\n        const args = packet.data || [];\n        if (null != packet.id) {\n            args.push(this.ack(packet.id));\n        }\n        if (this.connected) {\n            this.emitEvent(args);\n        }\n        else {\n            this.receiveBuffer.push(Object.freeze(args));\n        }\n    }\n    emitEvent(args) {\n        if (this._anyListeners && this._anyListeners.length) {\n            const listeners = this._anyListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, args);\n            }\n        }\n        super.emit.apply(this, args);\n        if (this._pid && args.length && typeof args[args.length - 1] === \"string\") {\n            this._lastOffset = args[args.length - 1];\n        }\n    }\n    /**\n     * Produces an ack callback to emit with an event.\n     *\n     * @private\n     */\n    ack(id) {\n        const self = this;\n        let sent = false;\n        return function (...args) {\n            // prevent double callbacks\n            if (sent)\n                return;\n            sent = true;\n            self.packet({\n                type: PacketType.ACK,\n                id: id,\n                data: args,\n            });\n        };\n    }\n    /**\n     * Called upon a server acknowlegement.\n     *\n     * @param packet\n     * @private\n     */\n    onack(packet) {\n        const ack = this.acks[packet.id];\n        if (\"function\" === typeof ack) {\n            ack.apply(this, packet.data);\n            delete this.acks[packet.id];\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon server connect.\n     *\n     * @private\n     */\n    onconnect(id, pid) {\n        this.id = id;\n        this.recovered = pid && this._pid === pid;\n        this._pid = pid; // defined only if connection state recovery is enabled\n        this.connected = true;\n        this.emitBuffered();\n        this.emitReserved(\"connect\");\n        this._drainQueue(true);\n    }\n    /**\n     * Emit buffered events (received and emitted).\n     *\n     * @private\n     */\n    emitBuffered() {\n        this.receiveBuffer.forEach((args) => this.emitEvent(args));\n        this.receiveBuffer = [];\n        this.sendBuffer.forEach((packet) => {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        });\n        this.sendBuffer = [];\n    }\n    /**\n     * Called upon server disconnect.\n     *\n     * @private\n     */\n    ondisconnect() {\n        this.destroy();\n        this.onclose(\"io server disconnect\");\n    }\n    /**\n     * Called upon forced client/server side disconnections,\n     * this method ensures the manager stops tracking us and\n     * that reconnections don't get triggered for this.\n     *\n     * @private\n     */\n    destroy() {\n        if (this.subs) {\n            // clean subscriptions to avoid reconnections\n            this.subs.forEach((subDestroy) => subDestroy());\n            this.subs = undefined;\n        }\n        this.io[\"_destroy\"](this);\n    }\n    /**\n     * Disconnects the socket manually. In that case, the socket will not try to reconnect.\n     *\n     * If this is the last active Socket instance of the {@link Manager}, the low-level connection will be closed.\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   // console.log(reason); prints \"io client disconnect\"\n     * });\n     *\n     * socket.disconnect();\n     *\n     * @return self\n     */\n    disconnect() {\n        if (this.connected) {\n            this.packet({ type: PacketType.DISCONNECT });\n        }\n        // remove socket from pool\n        this.destroy();\n        if (this.connected) {\n            // fire events\n            this.onclose(\"io client disconnect\");\n        }\n        return this;\n    }\n    /**\n     * Alias for {@link disconnect()}.\n     *\n     * @return self\n     */\n    close() {\n        return this.disconnect();\n    }\n    /**\n     * Sets the compress flag.\n     *\n     * @example\n     * socket.compress(false).emit(\"hello\");\n     *\n     * @param compress - if `true`, compresses the sending data\n     * @return self\n     */\n    compress(compress) {\n        this.flags.compress = compress;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the event message will be dropped when this socket is not\n     * ready to send messages.\n     *\n     * @example\n     * socket.volatile.emit(\"hello\"); // the server may or may not receive it\n     *\n     * @returns self\n     */\n    get volatile() {\n        this.flags.volatile = true;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the callback will be called with an error when the\n     * given number of milliseconds have elapsed without an acknowledgement from the server:\n     *\n     * @example\n     * socket.timeout(5000).emit(\"my-event\", (err) => {\n     *   if (err) {\n     *     // the server did not acknowledge the event in the given delay\n     *   }\n     * });\n     *\n     * @returns self\n     */\n    timeout(timeout) {\n        this.flags.timeout = timeout;\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * @example\n     * socket.onAny((event, ...args) => {\n     *   console.log(`got ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * @example\n     * socket.prependAny((event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * }\n     *\n     * socket.onAny(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAny(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAny();\n     *\n     * @param listener\n     */\n    offAny(listener) {\n        if (!this._anyListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAny() {\n        return this._anyListeners || [];\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.onAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.prependAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * }\n     *\n     * socket.onAnyOutgoing(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAnyOutgoing(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAnyOutgoing();\n     *\n     * @param [listener] - the catch-all listener (optional)\n     */\n    offAnyOutgoing(listener) {\n        if (!this._anyOutgoingListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyOutgoingListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyOutgoingListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAnyOutgoing() {\n        return this._anyOutgoingListeners || [];\n    }\n    /**\n     * Notify the listeners for each packet sent\n     *\n     * @param packet\n     *\n     * @private\n     */\n    notifyOutgoingListeners(packet) {\n        if (this._anyOutgoingListeners && this._anyOutgoingListeners.length) {\n            const listeners = this._anyOutgoingListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, packet.data);\n            }\n        }\n    }\n}\n", "/**\n * Initialize backoff timer with `opts`.\n *\n * - `min` initial timeout in milliseconds [100]\n * - `max` max timeout [10000]\n * - `jitter` [0]\n * - `factor` [2]\n *\n * @param {Object} opts\n * @api public\n */\nexport function Backoff(opts) {\n    opts = opts || {};\n    this.ms = opts.min || 100;\n    this.max = opts.max || 10000;\n    this.factor = opts.factor || 2;\n    this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;\n    this.attempts = 0;\n}\n/**\n * Return the backoff duration.\n *\n * @return {Number}\n * @api public\n */\nBackoff.prototype.duration = function () {\n    var ms = this.ms * Math.pow(this.factor, this.attempts++);\n    if (this.jitter) {\n        var rand = Math.random();\n        var deviation = Math.floor(rand * this.jitter * ms);\n        ms = (Math.floor(rand * 10) & 1) == 0 ? ms - deviation : ms + deviation;\n    }\n    return Math.min(ms, this.max) | 0;\n};\n/**\n * Reset the number of attempts.\n *\n * @api public\n */\nBackoff.prototype.reset = function () {\n    this.attempts = 0;\n};\n/**\n * Set the minimum duration\n *\n * @api public\n */\nBackoff.prototype.setMin = function (min) {\n    this.ms = min;\n};\n/**\n * Set the maximum duration\n *\n * @api public\n */\nBackoff.prototype.setMax = function (max) {\n    this.max = max;\n};\n/**\n * Set the jitter\n *\n * @api public\n */\nBackoff.prototype.setJitter = function (jitter) {\n    this.jitter = jitter;\n};\n", "import { Socket as Engine, installTimerFunctions, nextTick, } from \"engine.io-client\";\nimport { Socket } from \"./socket.js\";\nimport * as parser from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Backoff } from \"./contrib/backo2.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\nexport class Manager extends Emitter {\n    constructor(uri, opts) {\n        var _a;\n        super();\n        this.nsps = {};\n        this.subs = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = undefined;\n        }\n        opts = opts || {};\n        opts.path = opts.path || \"/socket.io\";\n        this.opts = opts;\n        installTimerFunctions(this, opts);\n        this.reconnection(opts.reconnection !== false);\n        this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);\n        this.reconnectionDelay(opts.reconnectionDelay || 1000);\n        this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);\n        this.randomizationFactor((_a = opts.randomizationFactor) !== null && _a !== void 0 ? _a : 0.5);\n        this.backoff = new Backoff({\n            min: this.reconnectionDelay(),\n            max: this.reconnectionDelayMax(),\n            jitter: this.randomizationFactor(),\n        });\n        this.timeout(null == opts.timeout ? 20000 : opts.timeout);\n        this._readyState = \"closed\";\n        this.uri = uri;\n        const _parser = opts.parser || parser;\n        this.encoder = new _parser.Encoder();\n        this.decoder = new _parser.Decoder();\n        this._autoConnect = opts.autoConnect !== false;\n        if (this._autoConnect)\n            this.open();\n    }\n    reconnection(v) {\n        if (!arguments.length)\n            return this._reconnection;\n        this._reconnection = !!v;\n        return this;\n    }\n    reconnectionAttempts(v) {\n        if (v === undefined)\n            return this._reconnectionAttempts;\n        this._reconnectionAttempts = v;\n        return this;\n    }\n    reconnectionDelay(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelay;\n        this._reconnectionDelay = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMin(v);\n        return this;\n    }\n    randomizationFactor(v) {\n        var _a;\n        if (v === undefined)\n            return this._randomizationFactor;\n        this._randomizationFactor = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setJitter(v);\n        return this;\n    }\n    reconnectionDelayMax(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelayMax;\n        this._reconnectionDelayMax = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMax(v);\n        return this;\n    }\n    timeout(v) {\n        if (!arguments.length)\n            return this._timeout;\n        this._timeout = v;\n        return this;\n    }\n    /**\n     * Starts trying to reconnect if reconnection is enabled and we have not\n     * started reconnecting yet\n     *\n     * @private\n     */\n    maybeReconnectOnOpen() {\n        // Only try to reconnect if it's the first time we're connecting\n        if (!this._reconnecting &&\n            this._reconnection &&\n            this.backoff.attempts === 0) {\n            // keeps reconnection from firing twice for the same reconnection loop\n            this.reconnect();\n        }\n    }\n    /**\n     * Sets the current transport `socket`.\n     *\n     * @param {Function} fn - optional, callback\n     * @return self\n     * @public\n     */\n    open(fn) {\n        if (~this._readyState.indexOf(\"open\"))\n            return this;\n        this.engine = new Engine(this.uri, this.opts);\n        const socket = this.engine;\n        const self = this;\n        this._readyState = \"opening\";\n        this.skipReconnect = false;\n        // emit `open`\n        const openSubDestroy = on(socket, \"open\", function () {\n            self.onopen();\n            fn && fn();\n        });\n        const onError = (err) => {\n            this.cleanup();\n            this._readyState = \"closed\";\n            this.emitReserved(\"error\", err);\n            if (fn) {\n                fn(err);\n            }\n            else {\n                // Only do this if there is no fn to handle the error\n                this.maybeReconnectOnOpen();\n            }\n        };\n        // emit `error`\n        const errorSub = on(socket, \"error\", onError);\n        if (false !== this._timeout) {\n            const timeout = this._timeout;\n            // set timer\n            const timer = this.setTimeoutFn(() => {\n                openSubDestroy();\n                onError(new Error(\"timeout\"));\n                socket.close();\n            }, timeout);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n        this.subs.push(openSubDestroy);\n        this.subs.push(errorSub);\n        return this;\n    }\n    /**\n     * Alias for open()\n     *\n     * @return self\n     * @public\n     */\n    connect(fn) {\n        return this.open(fn);\n    }\n    /**\n     * Called upon transport open.\n     *\n     * @private\n     */\n    onopen() {\n        // clear old subs\n        this.cleanup();\n        // mark as open\n        this._readyState = \"open\";\n        this.emitReserved(\"open\");\n        // add new subs\n        const socket = this.engine;\n        this.subs.push(on(socket, \"ping\", this.onping.bind(this)), on(socket, \"data\", this.ondata.bind(this)), on(socket, \"error\", this.onerror.bind(this)), on(socket, \"close\", this.onclose.bind(this)), on(this.decoder, \"decoded\", this.ondecoded.bind(this)));\n    }\n    /**\n     * Called upon a ping.\n     *\n     * @private\n     */\n    onping() {\n        this.emitReserved(\"ping\");\n    }\n    /**\n     * Called with data.\n     *\n     * @private\n     */\n    ondata(data) {\n        try {\n            this.decoder.add(data);\n        }\n        catch (e) {\n            this.onclose(\"parse error\", e);\n        }\n    }\n    /**\n     * Called when parser fully decodes a packet.\n     *\n     * @private\n     */\n    ondecoded(packet) {\n        // the nextTick call prevents an exception in a user-provided event listener from triggering a disconnection due to a \"parse error\"\n        nextTick(() => {\n            this.emitReserved(\"packet\", packet);\n        }, this.setTimeoutFn);\n    }\n    /**\n     * Called upon socket error.\n     *\n     * @private\n     */\n    onerror(err) {\n        this.emitReserved(\"error\", err);\n    }\n    /**\n     * Creates a new socket for the given `nsp`.\n     *\n     * @return {Socket}\n     * @public\n     */\n    socket(nsp, opts) {\n        let socket = this.nsps[nsp];\n        if (!socket) {\n            socket = new Socket(this, nsp, opts);\n            this.nsps[nsp] = socket;\n        }\n        else if (this._autoConnect && !socket.active) {\n            socket.connect();\n        }\n        return socket;\n    }\n    /**\n     * Called upon a socket close.\n     *\n     * @param socket\n     * @private\n     */\n    _destroy(socket) {\n        const nsps = Object.keys(this.nsps);\n        for (const nsp of nsps) {\n            const socket = this.nsps[nsp];\n            if (socket.active) {\n                return;\n            }\n        }\n        this._close();\n    }\n    /**\n     * Writes a packet.\n     *\n     * @param packet\n     * @private\n     */\n    _packet(packet) {\n        const encodedPackets = this.encoder.encode(packet);\n        for (let i = 0; i < encodedPackets.length; i++) {\n            this.engine.write(encodedPackets[i], packet.options);\n        }\n    }\n    /**\n     * Clean up transport subscriptions and packet buffer.\n     *\n     * @private\n     */\n    cleanup() {\n        this.subs.forEach((subDestroy) => subDestroy());\n        this.subs.length = 0;\n        this.decoder.destroy();\n    }\n    /**\n     * Close the current socket.\n     *\n     * @private\n     */\n    _close() {\n        this.skipReconnect = true;\n        this._reconnecting = false;\n        this.onclose(\"forced close\");\n        if (this.engine)\n            this.engine.close();\n    }\n    /**\n     * Alias for close()\n     *\n     * @private\n     */\n    disconnect() {\n        return this._close();\n    }\n    /**\n     * Called upon engine close.\n     *\n     * @private\n     */\n    onclose(reason, description) {\n        this.cleanup();\n        this.backoff.reset();\n        this._readyState = \"closed\";\n        this.emitReserved(\"close\", reason, description);\n        if (this._reconnection && !this.skipReconnect) {\n            this.reconnect();\n        }\n    }\n    /**\n     * Attempt a reconnection.\n     *\n     * @private\n     */\n    reconnect() {\n        if (this._reconnecting || this.skipReconnect)\n            return this;\n        const self = this;\n        if (this.backoff.attempts >= this._reconnectionAttempts) {\n            this.backoff.reset();\n            this.emitReserved(\"reconnect_failed\");\n            this._reconnecting = false;\n        }\n        else {\n            const delay = this.backoff.duration();\n            this._reconnecting = true;\n            const timer = this.setTimeoutFn(() => {\n                if (self.skipReconnect)\n                    return;\n                this.emitReserved(\"reconnect_attempt\", self.backoff.attempts);\n                // check again for the case socket closed in above events\n                if (self.skipReconnect)\n                    return;\n                self.open((err) => {\n                    if (err) {\n                        self._reconnecting = false;\n                        self.reconnect();\n                        this.emitReserved(\"reconnect_error\", err);\n                    }\n                    else {\n                        self.onreconnect();\n                    }\n                });\n            }, delay);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n    }\n    /**\n     * Called upon successful reconnect.\n     *\n     * @private\n     */\n    onreconnect() {\n        const attempt = this.backoff.attempts;\n        this._reconnecting = false;\n        this.backoff.reset();\n        this.emitReserved(\"reconnect\", attempt);\n    }\n}\n", "import { url } from \"./url.js\";\nimport { Manager } from \"./manager.js\";\nimport { Socket } from \"./socket.js\";\n/**\n * Managers cache.\n */\nconst cache = {};\nfunction lookup(uri, opts) {\n    if (typeof uri === \"object\") {\n        opts = uri;\n        uri = undefined;\n    }\n    opts = opts || {};\n    const parsed = url(uri, opts.path || \"/socket.io\");\n    const source = parsed.source;\n    const id = parsed.id;\n    const path = parsed.path;\n    const sameNamespace = cache[id] && path in cache[id][\"nsps\"];\n    const newConnection = opts.forceNew ||\n        opts[\"force new connection\"] ||\n        false === opts.multiplex ||\n        sameNamespace;\n    let io;\n    if (newConnection) {\n        io = new Manager(source, opts);\n    }\n    else {\n        if (!cache[id]) {\n            cache[id] = new Manager(source, opts);\n        }\n        io = cache[id];\n    }\n    if (parsed.query && !opts.query) {\n        opts.query = parsed.queryKey;\n    }\n    return io.socket(parsed.path, opts);\n}\n// so that \"lookup\" can be used both as a function (e.g. `io(...)`) and as a\n// namespace (e.g. `io.connect(...)`), for backward compatibility\nObject.assign(lookup, {\n    Manager,\n    Socket,\n    io: lookup,\n    connect: lookup,\n});\n/**\n * Protocol version.\n *\n * @public\n */\nexport { protocol } from \"socket.io-parser\";\n/**\n * Expose constructors for standalone build.\n *\n * @public\n */\nexport { Manager, Socket, lookup as io, lookup as connect, lookup as default, };\n"],
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"delay", "factor", "depth", "reason", "lookup", "options", "eMsg", "uibuilder", "uibuilder_module_default", "uibuilder", "UibVar"]
+  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\n// Namespaces - See https://stackoverflow.com/a/52572048/1309986\n// const NAMESPACES = {\n//     svg: 'http://www.w3.org/2000/svg',\n//     html: 'http://www.w3.org/1999/xhtml',\n//     xml: 'http://www.w3.org/XML/1998/namespace',\n//     xlink: 'http://www.w3.org/1999/xlink',\n//     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n// }\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    //#region ---- Internal Methods ----\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                if (attrib === 'class' && Array.isArray(comp.attributes[attrib])) comp.attributes[attrib].join(' ')\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    /** External alias for _uiComposeComponent\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n    } // --- end of _uiManager ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    //#endregion ---- -------- ----\n    //#region ---- External Methods ----\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += msg.payload\n        if (ui.content) content += ui.content\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        this._uiManager(msg)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName !== null && propName !== '') {\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    // Nightmare of different object types in a DOM Element!\n                    if (prop.constructor.name === 'NamedNodeMap') { // Attributes\n                        const p = {}\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                        out.push(p)\n                    } else if (!prop.constructor.name.toLowerCase().includes('map')) { // Ordinary properties\n                        out.push({\n                            [propName]: prop\n                        })\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                        out.push(p)\n                    }\n                }\n\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    //#endregion ---- -------- ----\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n", "/* This is the Front-End JavaScript for uibuilder  in HTML Module form\n  It provides a number of global objects that can be used in your own javascript.\n  see the docs folder `./docs/uibuilder.module.md` for details of how to use this fully.\n\n  Please use the default index.js file for your own code and leave this as-is.\n  See Uib._meta for client version string\n\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n//#region --- Type Defs --- //\n/**\n * A string containing HTML markup\n * @typedef {string} html\n */\n//#endregion --- Type Defs --- //\n\n//#region --- We need the Socket.IO & ui libraries & the uib-var component  --- //\n// @ts-ignore - Note: Only works when using esbuild to bundle\nimport Ui from './ui'\nimport UibVar from '../components/uib-var'\nimport io from 'socket.io-client'\n\n// TODO - Maybe - check if already loaded as window['io']?\n// TODO - Maybe - Should this be moved to inside the class - would know the httpRoot then so less need to guess?\n// TODO           Or, could pull the cookie processing out of the class\n// const ioLocns = [ // Likely locations of the Socket.IO client library\n//     // Where it should normally be\n//     '../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and haven't changed httpNodeRoot\n//     '/uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and have changed httpNodeRoot\n//     '../../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Direct from the Internet - last ditch attempt\n//     'https://cdn.jsdelivr.net/npm/socket.io-client/+esm',\n// ]\n\n// let io\n// for (const locn of ioLocns) {\n//     try {\n//         ({ io } = await import(locn))\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library found at '${locn}'`)()\n//     } catch (e) {\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library not found at '${locn}'`)()\n//     }\n//     if (io) break\n// }\n// if (!io) log('error', 'uibuilder.module.js', 'Socket.IO client failed to load')()\n//#endregion -------- -------- -------- //\n\nconst version = '6.8.0-src'\n\n// TODO Add option to allow log events to be sent back to Node-RED as uib ctrl msgs\n//#region --- Module-level utility functions --- //\n\n// @ts-ignore Detect whether the loaded library is minified or not\nconst isMinified = !(/param/).test(function (param) { }) // eslint-disable-line no-unused-vars\n\n//#region --- print/console - debugging output functions --- //\n\n/** Default log level - Error & Warn */\nlet logLevel = isMinified ? 0 : 1  // When using minified lib, assume production and only log errors otherwise also log warn\n// function changeLogLevel(level) {\n//     logLevel = level\n//     console.trace = logLevel < 4 ? function(){} : console.trace\n//     console.debug = logLevel < 2 ? function(){} : console.debug\n//     if ( logLevel < 1 ) {\n//         console.log = console.group = console.groupEnd =  function(){}\n//     }\n// }\n\n// Experimental\nconst LOG_STYLES = {\n    // 0\n    error: {\n        css: 'background: red; color: black;',\n        txtCss: 'color: red; ',\n        pre: '\u26D4 ',\n        console: 'error',  // or trace\n    },\n    // 1\n    warn: {\n        css: 'background: darkorange; color: black;',\n        txtCss: 'color: darkorange; ',\n        pre: '\u26A0 ',\n        console: 'warn',\n    },\n    // 2\n    info: {\n        css: 'background: aqua; color: black;',\n        txtCss: 'color: aqua;',\n        pre: '\u2757 ',\n        console: 'info',\n    },\n    // 3\n    log: {\n        css: 'background: grey; color: yellow;',\n        txtCss: 'color: grey;',\n        pre: '',\n        console: 'log',\n    },\n    // 4\n    debug: {\n        css: 'background: chartreuse; color: black;',\n        txtCss: 'color: chartreuse;',\n        pre: '',\n        console: 'debug',\n    },\n    // 5\n    trace: {\n        css: 'background: indigo; color: yellow;',\n        txtCss: 'color: hotpink;',\n        pre: '',\n        console: 'log',\n    },\n\n    names: ['error', 'warn', 'info', 'log', 'debug', 'trace'],\n    reset: 'color: inherit;',\n    head: 'font-weight:bold; font-style:italic;',\n    level: 'font-weight:bold; border-radius: 3px; padding: 2px 5px; display:inline-block;',\n}\n/** Custom logging. e.g. log(2, 'here:there', 'jiminy', {fred:'jim'})()\n * @returns {Function} Log function @example log(2, 'here:there', 'jiminy', {fred:'jim'})()\n */\nfunction log() {\n    // Get the args\n    const args = Array.prototype.slice.call(arguments)\n\n    // 1st arg is the log level/type\n    let level = args.shift()\n    let strLevel\n    switch (level) {\n        case 'trace':\n        case 5: {\n            if (logLevel < 5) break\n            level = 5 // make sure level is numeric\n            strLevel = 'trace'\n            break\n        }\n\n        case 'debug':\n        case 4: {\n            if (logLevel < 4) break\n            level = 4\n            strLevel = 'debug'\n            break\n        }\n\n        case 'log':\n        case 3: {\n            if (logLevel < 3) break\n            level = 3\n            strLevel = 'log'\n            break\n        }\n\n        case 'info':\n        case '':\n        case 2: {\n            if (logLevel < 2) break\n            level = 2\n            strLevel = 'info'\n            break\n        }\n\n        case 'warn':\n        case 1: {\n            if (logLevel < 1) break\n            level = 1\n            strLevel = 'warn'\n            break\n        }\n\n        case 'error':\n        case 'err':\n        case 0: {\n            if (logLevel < 0) break\n            level = 0\n            strLevel = 'error'\n            break\n        }\n\n        default: {\n            level = -1\n            break\n        }\n\n    }\n\n    // If set to something unknown, no log output\n    if (strLevel === undefined) return function () { }\n\n    // 2nd arg is a heading that will be colour highlighted\n    const head = args.shift()\n\n    // Bind back to console.log (could use console[strLevel] but some levels ignore some formatting, use console.xxx directly or dedicated fn)\n    return Function.prototype.bind.call(\n        console[LOG_STYLES[strLevel].console],\n        console,\n        `%c${LOG_STYLES[strLevel].pre}${strLevel}%c [${head}]`, `${LOG_STYLES.level} ${LOG_STYLES[strLevel].css}`, `${LOG_STYLES.head} ${LOG_STYLES[strLevel].txtCss}`,\n        ...args\n    )\n}\n//#endregion\n\n/** A hack to dynamically load a remote module and wait until it is loaded\n * @param {string} url The URL of the module to load\n * @returns {object|null} Either the result object or null (if the load fails)\n */\n// function loadModule(url) { // eslint-disable-line no-unused-vars\n//     let done\n\n//     import(url)\n//         .then(res => {\n//             log('debug', '>> then >>', res)()\n//             done = res\n//         })\n//         .catch(err => {\n//             console.error(`[uibuilder:loadModule] Could not load module ${url}`, err)\n//             done = null\n//         })\n\n//     //  eslint-disable-next-line no-empty\n//     while (!done) { } // eslint-disable-line no-unmodified-loop-condition\n\n//     return done\n// }\n\n/** Makes a null or non-object into an object\n * If not null, moves \"thing\" to {payload:thing}\n *\n * @param {*} thing Thing to check\n * @param {string} [property='payload'] property that \"thing\" is moved to if not null and not an object\n * @returns {!object} _\n */\nfunction makeMeAnObject(thing, property) {\n    if (!property) property = 'payload'\n    if (typeof property !== 'string') {\n        log('warn', 'uibuilderfe:makeMeAnObject', `WARNING: property parameter must be a string and not: ${typeof property}`)()\n        property = 'payload'\n    }\n    let out = {}\n    if ( thing !== null && thing.constructor.name === 'Object' ) {\n        out = thing\n    } else if (thing !== null) {\n        out[property] = thing\n    }\n    return out\n} // --- End of make me an object --- //\n\n/** Joins all arguments as a URL string\n * see http://stackoverflow.com/a/28592528/3016654\n * since v1.0.10, fixed potential double // issue\n * arguments {string} URL fragments\n * @returns {string} _\n */\nfunction urlJoin() {\n    const paths = Array.prototype.slice.call(arguments)\n    const url = '/' + paths.map(function (e) {\n        return e.replace(/^\\/|\\/$/g, '')\n    })\n        .filter(function (e) {\n            return e\n        })\n        .join('/')\n    return url.replace('//', '/')\n} // ---- End of urlJoin ---- //\n\n/** Convert JSON to Syntax Highlighted HTML\n * @param {object} json A JSON/JavaScript Object\n * @returns {html} Object reformatted as highlighted HTML\n */\nfunction syntaxHighlight(json) {\n    if (json === undefined) {\n        json = '<span class=\"undefined\">undefined</span>'\n    } else {\n        try {\n            json = JSON.stringify(json, undefined, 4)\n            // json = json.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;') // eslint-disable-line newline-per-chained-call\n            json = json.replace(/(\"(\\\\u[a-zA-Z0-9]{4}|\\\\[^u]|[^\\\\\"])*\"(\\s*:)?|\\b(true|false|null)\\b|-?\\d+(?:\\.\\d*)?(?:[eE][+-]?\\d+)?)/g, function (match) { // eslint-disable-line prefer-named-capture-group\n                let cls = 'number'\n                if ((/^\"/).test(match)) {\n                    if ((/:$/).test(match)) {\n                        cls = 'key'\n                    } else {\n                        cls = 'string'\n                    }\n                } else if ((/true|false/).test(match)) {\n                    cls = 'boolean'\n                } else if ((/null/).test(match)) {\n                    cls = 'null'\n                }\n                return `<span class=\"${cls}\">${match}</span>`\n            })\n        } catch (e) {\n            json = `Syntax Highlight ERROR: ${e.message}`\n        }\n    }\n    return json\n}\n\n/** msg._ui handling functions */\nconst _ui = new Ui(window, log, syntaxHighlight)\n\n//#endregion --- Module-level utility functions --- //\n\n/** Define and export the Uib class - note that an instance of the class is also exported in the wrap-up\n * @typicalname uibuilder\n */\nexport const Uib = class Uib {\n\n    //#region --- Static variables ---\n    static _meta = {\n        version: version,\n        type: 'module',\n        displayName: 'uibuilder',\n    }\n    //#endregion ---- ---- ---- ----\n\n    //#region private class vars\n\n    // How many times has the loaded instance connected to Socket.IO (detect if not a new load?)\n    connectedNum = 0\n    // event listener callbacks by property name\n    // #events = {}\n    // Socket.IO channel names\n    _ioChannels = { control: 'uiBuilderControl', client: 'uiBuilderClient', server: 'uiBuilder' }\n    /** setInterval holder for pings @type {function|undefined} */\n    #pingInterval\n    // onChange event callbacks\n    #propChangeCallbacks = {}\n    // onTopic event callbacks\n    #msgRecvdByTopicCallbacks = {}\n    // Is Vue available?\n    isVue = false\n    // What version? Set in startup if Vue is loaded. Won't always work\n    vueVersion = undefined\n    /** setInterval id holder for Socket.IO checkConnect\n     * @type {number|null}\n     */\n    #timerid = null\n    // Holds the reference ID for the internal msg change event handler so that it can be cancelled\n    #MsgHandler\n    // Placeholder for io.socket - can't make a # var until # fns allowed in all browsers\n    _socket\n    // Placeholder for an observer that watches the whole DOM for changes - can't make a # var until # fns allowed in all browsers\n    _htmlObserver\n    // Has showMsg been turned on?\n    #isShowMsg = false\n    // Has showStatus been turned on?\n    #isShowStatus = false\n    // If true, URL hash changes send msg back to node-red. Controlled by watchUrlHash()\n    #sendUrlHash = false\n    // Externally accessible command functions (NB: Case must match) - remember to update _uibCommand for new commands\n    #extCommands = [\n        'elementExists', 'get', 'getManagedVarList', 'getWatchedVars', 'htmlSend', 'include',\n        'navigate', 'scrollTo', 'set', 'showMsg', 'showStatus', 'uiGet', 'uiWatch', 'watchUrlHash',\n    ]\n\n    /** @type {{[key: string]: string}} Managed uibuilder variables */\n    #managedVars = {}\n\n    // What status variables to show via showStatus()\n    #showStatus = {\n        online: { 'var': 'online', 'label': 'Online?', 'description': 'Is the browser online?', },\n        ioConnected: { 'var': 'ioConnected', 'label': 'Socket.IO connected?', 'description': 'Is Socket.IO connected?', },\n        connectedNum: { 'var': 'connectedNum', 'label': '# reconnections', 'description': 'How many times has Socket.IO had to reconnect since last page load?', },\n\n        clientId: { 'var': 'clientId', 'label': 'Client ID', 'description': 'Static client unique id set in Node-RED. Only changes when browser is restarted.', },\n        tabId: { 'var': 'tabId', 'label': 'Browser tab ID', 'description': 'Static unique id for the browser\\'s current tab', },\n        cookies: { 'var': 'cookies', 'label': 'Cookies', 'description': 'Cookies set in Node-RED', },\n        httpNodeRoot: { 'var': 'httpNodeRoot', 'label': 'httpNodeRoot', 'description': 'From Node-RED\\' settings.js, affects URL\\'s. May be wrong for pages in sub-folders', },\n        pageName: { 'var': 'pageName', 'label': 'Page name', 'description': 'Actual name of this page', },\n\n        ioNamespace: { 'var': 'ioNamespace', 'label': 'SIO namespace', 'description': 'Socket.IO namespace - unique to each uibuilder node instance', },\n        // ioPath: { 'var': 'ioPath', 'label': 'SIO path', 'description': '', }, // no longer needed in the modern client\n        socketError: { 'var': 'socketError', 'label': 'Socket error', 'description': 'If the Socket.IO connection has failed, says why', },\n\n        msgsSent: { 'var': 'msgsSent', 'label': '# msgs sent', 'description': 'How many standard messages have been sent to Node-RED?', },\n        msgsReceived: { 'var': 'msgsReceived', 'label': '# msgs received', 'description': 'How many standard messages have been received from Node-RED?', },\n        msgsSentCtrl: { 'var': 'msgsSentCtrl', 'label': '# control msgs sent', 'description': 'How many control messages have been sent to Node-RED?', },\n        msgsCtrlReceived: { 'var': 'msgsCtrlReceived', 'label': '# control msgs received', 'description': 'How many control messages have been received from Node-RED?', },\n        originator: { 'var': 'originator', 'label': 'Node Originator', 'description': 'If the last msg from Node-RED was from a `uib-sender` node, this will be its node id so that messasges can be returned to it', },\n        topic: { 'var': 'topic', 'label': 'Default topic', 'description': 'Optional default topic to be included in outgoing standard messages', },\n\n        started: { 'var': 'started', 'label': 'Has uibuilder client started?', 'description': 'Whether `uibuilder.start()` ran successfully. This should self-run and should not need to be run manually', },\n        version: { 'var': 'version', 'label': 'uibuilder client version', 'description': 'The version of the loaded uibuilder client library', },\n        serverTimeOffset: { 'var': 'serverTimeOffset', 'label': 'Server time offset (Hrs)', 'description': 'The number of hours difference between the Node-red server and the client', },\n    }\n\n    // Track ui observers (see uiWatch)\n    #uiObservers = {}\n\n    //#endregion\n\n    //#region public class vars\n\n    // TODO Move to proper getters\n    //#region ---- Externally read-only (via .get method) ---- //\n    // version - moved to _meta\n    /** Client ID set by uibuilder on connect */\n    clientId = ''\n    /** The collection of cookies provided by uibuilder */\n    cookies = {}\n    /** Copy of last control msg object received from sever */\n    ctrlMsg = {}\n    /** Is Socket.IO client connected to the server? */\n    ioConnected = false\n    // Is the browser tab containing this page visible or not?\n    isVisible = false\n    // Remember the last page (re)load/navigation type: navigate, reload, back_forward, prerender\n    lastNavType = ''\n    /** Last std msg received from Node-RED */\n    msg = {}\n    /** number of messages sent to server since page load */\n    msgsSent = 0\n    /** number of messages received from server since page load */\n    msgsReceived = 0\n    /** number of control messages sent to server since page load */\n    msgsSentCtrl = 0\n    /** number of control messages received from server since page load */\n    msgsCtrlReceived = 0\n    /** Is the client online or offline? */\n    online = navigator.onLine\n    /** last control msg object sent via uibuilder.send() @since v2.0.0-dev3 */\n    sentCtrlMsg = {}\n    /** last std msg object sent via uibuilder.send() */\n    sentMsg = {}\n    /** placeholder to track time offset from server, see fn socket.on(ioChannels.server ...) */\n    serverTimeOffset = null\n    /** placeholder for a socket error message */\n    socketError = null\n    // tab identifier from session storage\n    tabId = ''\n    // Actual name of current page (set in constructor)\n    pageName = null\n    // Is the DOMPurify library loaded? Updated in start()\n    purify = false\n    // Is the Markdown-IT library loaded? Updated in start()\n    markdown = false\n    // Current URL hash. Initial set is done from start->watchHashChanges via a set to make it watched\n    urlHash = location.hash\n    //#endregion ---- ---- ---- ---- //\n\n    // TODO Move to proper getters/setters\n    //#region ---- Externally Writable (via .set method, read via .get method) ---- //\n    /** Default originator node id - empty string by default\n     * @type {string}\n     */\n    originator = ''\n    /** Default topic - used by send if set and no topic provided\n     * @type {(string|undefined)}\n     */\n    topic = undefined\n    //#endregion ---- ---- ---- ---- //\n\n    //#region ---- These are unlikely to be needed externally: ----\n    autoSendReady = true\n    httpNodeRoot = '' // Node-RED setting (via cookie)\n    ioNamespace = ''\n    ioPath = ''\n    retryFactor = 1.5       // starting delay factor for subsequent reconnect attempts\n    retryMs = 2000          // starting retry ms period for manual socket reconnections workaround\n    storePrefix = 'uib_'    // Prefix for all uib-related localStorage\n    started = false\n    // NOTE: These can only change when a client (re)connects\n    socketOptions = {\n        path: this.ioPath,\n        transports: ['polling', 'websocket'],\n        // Using callback so that they are updated automatically on (re)connect\n        // Only put things in here that will be valid for a websocket connected session\n        auth: (cb) => {\n            cb({ // eslint-disable-line n/no-callback-literal\n                clientVersion: version,\n                clientId: this.clientId,\n                pathName: window.location.pathname,\n                urlParams: Object.fromEntries(new URLSearchParams(location.search)),\n                pageName: this.pageName,\n                tabId: this.tabId,\n                lastNavType: this.lastNavType,\n                connectedNum: ++this.connectedNum,\n                // Used to calculate the diff between the server and client connection timestamps - reported if >1 minute\n                browserConnectTimestamp: (new Date()).toISOString(),\n            })\n        },\n        transportOptions: {\n            // Can only set headers when polling\n            polling: {\n                extraHeaders: {\n                    'x-clientid': `${Uib._meta.displayName}; ${Uib._meta.type}; ${Uib._meta.version}; ${this.clientId}`,\n                }\n            },\n        },\n    }\n    //#endregion -- not external --\n\n    //#endregion --- End of variables ---\n\n    //#region ------- Getters and Setters ------- //\n\n    // Change logging level dynamically (affects both console. and print.)\n    set logLevel(level) { logLevel = level; console.log('%c\u2757 info%c [logLevel]', `${LOG_STYLES.level} ${LOG_STYLES.info.css}`, `${LOG_STYLES.head} ${LOG_STYLES.info.txtCss}`, `Set to ${level} (${LOG_STYLES.names[level]})`) /* changeLogLevel(level)*/ }\n    get logLevel() { return logLevel }\n\n    get meta() { return Uib._meta }\n\n    /** Function to set uibuilder properties to a new value - works on any property except _* or #*\n     * Also triggers any event listeners.\n     * Example: this.set('msg', {topic:'uibuilder', payload:42});\n     * @param {string} prop Any uibuilder property who's name does not start with a _ or #\n     * @param {*} val The set value of the property or a string declaring that a protected property cannot be changed\n     * @param {boolean} [store] If true, the variable is also saved to the browser localStorage if possible\n     * @param {boolean} [autoload] If true & store is true, on load, uib will try to restore the value from the store automatically\n     * @returns {*} Input value\n     */\n    set(prop, val, store = false, autoload = false) {\n        // Check for excluded properties - we don't want people to set these\n        // if (this.#excludedSet.indexOf(prop) !== -1) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:set', `Cannot use set() on protected property \"${prop}\"`)()\n            return `Cannot use set() on protected property \"${prop}\"`\n        }\n\n        // We must add the var to the uibuilder object\n        this[prop] = val\n\n        // Keep track of all managed variables\n        this.#managedVars[prop] = prop\n\n        // If requested, save to store\n        if (store === true) this.setStore(prop, val, autoload)\n\n        log('trace', 'Uib:set', `prop set - prop: ${prop}, val: `, val, ` store: ${store}, autoload: ${autoload}`)()\n\n        // Trigger this prop's event callbacks (listeners which are set by this.onChange)\n        // this.emit(prop, val)\n\n        // trigger an event on the prop name, pass both the name and value to the event details\n        this._dispatchCustomEvent('uibuilder:propertyChanged', { 'prop': prop, 'value': val, 'store': store, 'autoload': autoload })\n\n        return val\n    }\n\n    /** Function to get the value of a uibuilder property\n     * Example: uibuilder.get('msg')\n     * @param {string} prop The name of the property to get as long as it does not start with a _ or #\n     * @returns {*|undefined} The current value of the property\n     */\n    get(prop) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:get', `Cannot use get() on protected property \"${prop}\"`)()\n            return\n        }\n        if (prop === 'version') return Uib._meta.version\n        if (prop === 'msgsCtrl') return this.msgsCtrlReceived\n        if (prop === 'reconnections') return this.connectedNum\n        if (this[prop] === undefined) {\n            log('warn', 'Uib:get', `get() - property \"${prop}\" is undefined`)()\n        }\n        return this[prop]\n    }\n\n    /** Write to localStorage if possible. console error output if can't write\n     * Also uses this.storePrefix\n     * @example\n     *   uibuilder.setStore('fred', 42)\n     *   console.log(uibuilder.getStore('fred'))\n     * @param {string} id localStorage var name to be used (prefixed with 'uib_')\n     * @param {*} value value to write to localstore\n     * @param {boolean} [autoload] If true, on load, uib will try to restore the value from the store\n     * @returns {boolean} True if succeeded else false\n     */\n    setStore(id, value, autoload = false) {\n        let autoVars = {}\n        if (autoload === true) {\n            try {\n                autoVars = this.getStore('_uibAutoloadVars') || {}\n            } catch (e) {}\n        }\n        if (typeof value === 'object') {\n            try {\n                value = JSON.stringify(value)\n            } catch (e) {\n                log('error', 'Uib:setStore', 'Cannot stringify object, not storing. ', e)()\n                return false\n            }\n        }\n        try {\n            localStorage.setItem(this.storePrefix + id, value)\n            if (autoload) {\n                autoVars[id] = id\n                try {\n                    localStorage.setItem(this.storePrefix + '_uibAutoloadVars', JSON.stringify(autoVars))\n                } catch (e) {\n                    log('error', 'Uib:setStore', 'Cannot save autoload list. ', e)()\n                }\n            }\n            this._dispatchCustomEvent('uibuilder:propertyStored', { 'prop': id, 'value': value, 'autoload': autoload })\n            return true\n        } catch (e) {\n            log('error', 'Uib:setStore', 'Cannot write to localStorage. ', e)()\n            return false\n        }\n    } // --- end of setStore --- //\n\n    /** Attempt to get and re-hydrate a key value from localStorage\n     * Note that all uib storage is automatically prefixed using this.storePrefix\n     * @param {*} id The key of the value to attempt to retrieve\n     * @returns {*|null|undefined} The re-hydrated value of the key or null if key not found, undefined on error\n     */\n    getStore(id) {\n        try {\n            // @ts-ignore\n            return JSON.parse(localStorage.getItem(this.storePrefix + id))\n        } catch (e) { }\n        try {\n            return localStorage.getItem(this.storePrefix + id)\n        } catch (e) {\n            return undefined\n        }\n    }\n\n    /** Remove a given id from the uib keys in localStorage\n     * @param {*} id The key to remove\n     */\n    removeStore(id) {\n        try {\n            localStorage.removeItem(this.storePrefix + id)\n        } catch (e) { }\n    }\n\n    /** Returns a list of uibuilder properties (variables) that can be watched with onChange\n     * @returns {{[key: string]: string}} List of uibuilder managed variables\n     */\n    getManagedVarList() {\n        return this.#managedVars\n    }\n\n    getWatchedVars() {\n        return Object.keys(this.#propChangeCallbacks)\n    }\n\n    //#endregion ------- -------- ------- //\n\n    //#region ------- Our own event handling system ---------- //\n\n    // TODO Add option to send event details back to Node-RED as uib ctrl msg\n    /** Standard fn to create a custom event with details & dispatch it\n     * @param {string} title The event name\n     * @param {*} details Any details to pass to event output\n     */\n    _dispatchCustomEvent(title, details) {\n        const event = new CustomEvent(title, { detail: details })\n        document.dispatchEvent(event)\n    }\n\n    // See the this.#propChangeCallbacks & msgRecvdByTopicCallbacks private vars\n\n    /** Register on-change event listeners for uibuilder tracked properties\n     * Make it possible to register a function that will be run when the property changes.\n     * Note that you can create listeners for non-existant properties\n     * @example: uibuilder.onChange('msg', (msg) => { console.log('uibuilder.msg changed! It is now: ', msg) })\n     *\n     * @param {string} prop The property of uibuilder that we want to monitor\n     * @param {Function} callback The function that will run when the property changes, parameter is the new value of the property after change\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelChange if you need to remove a listener\n     */\n    onChange(prop, callback) {\n        // Note: Property does not have to exist yet\n\n        // console.debug(`[Uib:onchange] pushing new callback (event listener) for property: ${prop}`)\n\n        // Create a new array or add to the array of callback functions for the property in the events object\n        // if (this.#events[prop]) {\n        //     this.#events[prop].push(callback)\n        // } else {\n        //     this.#events[prop] = [callback]\n        // }\n\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#propChangeCallbacks[prop]) this.#propChangeCallbacks[prop] = { _nextRef: 1 }\n        else this.#propChangeCallbacks[prop]._nextRef++\n\n        const nextCbRef = this.#propChangeCallbacks[prop]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const propChangeCallback = this.#propChangeCallbacks[prop][nextCbRef] = function propChangeCallback(e) {\n            // If the prop name matches the 1st arg in the onChange fn:\n            if (prop === e.detail.prop) {\n                const value = e.detail.value\n                // console.warn('[Uib:onChange:evt] uibuilder:propertyChanged. ', e.detail)\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(value, value)\n            }\n        }\n\n        document.addEventListener('uibuilder:propertyChanged', propChangeCallback)\n\n        return nextCbRef\n    } // ---- End of onChange() ---- //\n\n    cancelChange(prop, cbRef) {\n        document.removeEventListener('uibuilder:propertyChanged', this.#propChangeCallbacks[prop][cbRef])\n        delete this.#propChangeCallbacks[prop][cbRef]\n        // this.#propChangeCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Register a change callback for a specific msg.topic\n     * Similar to onChange but more convenient if needing to differentiate by msg.topic.\n     * @example: let otRef = uibuilder.onTopic('mytopic', function(){ console.log('Received a msg with msg.topic=`mytopic`. msg: ', this) })\n     * To cancel a change listener: uibuilder.cancelTopic('mytopic', otRef)\n     *\n     * @param {string} topic The msg.topic we want to listen for\n     * @param {Function} callback The function that will run when an appropriate msg is received. `this` inside the callback as well as the cb's single argument is the received msg.\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelTopic if you need to remove a listener\n     */\n    onTopic(topic, callback) {\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#msgRecvdByTopicCallbacks[topic]) this.#msgRecvdByTopicCallbacks[topic] = { _nextRef: 1 }\n        else this.#msgRecvdByTopicCallbacks[topic]._nextRef++\n\n        const nextCbRef = this.#msgRecvdByTopicCallbacks[topic]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const msgRecvdEvtCallback = this.#msgRecvdByTopicCallbacks[topic][nextCbRef] = function msgRecvdEvtCallback(e) {\n            const msg = e.detail\n            // console.log('[Uib:onTopic:evt] uibuilder:stdMsgReceived where topic matches. ', e.detail)\n            if (msg.topic === topic) {\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(msg, msg)\n            }\n        }\n\n        document.addEventListener('uibuilder:stdMsgReceived', msgRecvdEvtCallback)\n\n        return nextCbRef\n    }\n\n    cancelTopic(topic, cbRef) {\n        document.removeEventListener('uibuilder:stdMsgReceived', this.#msgRecvdByTopicCallbacks[topic][cbRef])\n        delete this.#msgRecvdByTopicCallbacks[topic][cbRef]\n        // this.#msgRecvdCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Trigger event listener for a given property\n     * Called when uibuilder.set is used\n     *\n     * @param {*} prop The property for which to run the callback functions\n     * arguments: Additional arguments contain the value to pass to the event callback (e.g. newValue)\n     */\n    // emit(prop) {\n    //     var evt = this.#events[prop]\n    //     if (!evt) {\n    //         return\n    //     }\n    //     var args = Array.prototype.slice.call(arguments, 1)\n    //     for (var i = 0; i < evt.length; i++) {\n    //         evt[i].apply(this, args)\n    //     }\n    //     log('trace', 'Uib:emit', `${evt.length} listeners run for prop ${prop} `)()\n    // }\n\n    /** Forcibly removes all event listeners from the events array\n     * Use if you need to re-initialise the environment\n     */\n    // clearEventListeners() {\n    //     this.#events = []\n    // } // ---- End of clearEventListeners() ---- //\n\n    /** Clear a single property event listeners\n     * @param {string} prop The property of uibuilder for which we want to clear the event listener\n     */\n    // clearListener(prop) {\n    //     if (this.#events[prop]) delete this.#events[prop]\n    // }\n\n    //#endregion ---------- End of event handling system ---------- //\n\n    //#region ------- General Utility Functions -------- //\n\n    /** Check supplied msg from server for a timestamp - if received, work out & store difference to browser time\n     * @param {object} receivedMsg A message object recieved from Node-RED\n     * @returns {void} Updates self.serverTimeOffset if different to previous value\n     */\n    _checkTimestamp(receivedMsg) {\n        if (Object.prototype.hasOwnProperty.call(receivedMsg, 'serverTimestamp')) {\n            const serverTimestamp = new Date(receivedMsg.serverTimestamp)\n            // @ts-ignore\n            const offset = Math.round(((new Date()) - serverTimestamp) / 3600000) // in ms /3.6m to get hours\n            if (offset !== this.serverTimeOffset) {\n                log('trace', `Uib:checkTimestamp:${this._ioChannels.server} (server)`, `Offset changed to: ${offset} from: ${this.serverTimeOffset}`)()\n                this.set('serverTimeOffset', offset)\n            }\n        }\n    }\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {*} Selected HTML element or null\n     */\n    $(cssSelector) {\n        /** @type {*} Some kind of HTML element */\n        let el = document.querySelector(cssSelector)\n\n        if (!el) {\n            log(1, 'Uib:$', `No element found for CSS selector ${cssSelector}`)()\n            return null\n        }\n\n        if ( el.nodeName === 'TEMPLATE' ) {\n            el = el.content.firstElementChild\n            if (!el) {\n                log(0, 'Uib:$', `Template selected for CSS selector ${cssSelector} but it is empty`)()\n                return null\n            }\n        }\n\n        return el\n    }\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {*} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {Array} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$(cssSelector) {\n        return Array.from(document.querySelectorAll(cssSelector))\n    }\n\n    /** Set the default originator. Set to '' to ignore. Used with uib-sender.\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    setOriginator(originator = '') {\n        this.set('originator', originator)\n    } // ---- End of setOriginator ---- //\n\n    /** HTTP Ping/Keep-alive - makes a call back to uibuilder's ExpressJS server and receives a 204 response\n     * Can be used to keep sessions alive.\n     * @example\n     *   uibuilder.setPing(2000) // repeat every 2 sec. Re-issue with ping(0) to turn off repeat.\n     *   uibuilder.onChange('ping', function(data) {\n     *      console.log('pinger', data)\n     *   })\n     * @param {number} ms Repeat interval in ms\n     */\n    setPing(ms = 0) {\n        const oReq = new XMLHttpRequest()\n        oReq.addEventListener('load', () => {\n            const headers = (oReq.getAllResponseHeaders()).split('\\r\\n')\n            const elapsedTime = Number(new Date()) - Number((oReq.responseURL.split('='))[1])\n            this.set('ping', {\n                success: !!((oReq.status === 201) || (oReq.status === 204)), // true if one of the listed codes else false\n                status: oReq.status,\n                headers: headers,\n                url: oReq.responseURL,\n                elapsedTime: elapsedTime,\n            })\n        })\n\n        if (this.#pingInterval) {\n            clearInterval(this.#pingInterval)\n            this.#pingInterval = undefined\n        }\n\n        oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n        oReq.send()\n\n        if (ms > 0) {\n            this.#pingInterval = setInterval(() => {\n                oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n                oReq.send()\n            }, ms)\n        }\n    } // ---- End of ping ---- //\n\n    log() {\n        log(...arguments)()\n    }\n\n    /** Convert JSON to Syntax Highlighted HTML\n     * @param {object} json A JSON/JavaScript Object\n     * @returns {html} Object reformatted as highlighted HTML\n     */\n    syntaxHighlight(json) {\n        return syntaxHighlight(json)\n    } // --- End of syntaxHighlight --- //\n\n    /** Copies a uibuilder variable to the browser clipboard\n     * @param {string} varToCopy The name of the uibuilder variable to copy to the clipboard\n     */\n    copyToClipboard(varToCopy) {\n        let data = ''\n        try {\n            console.log(this.get(varToCopy), JSON.stringify(this.get(varToCopy)))\n            data = JSON.stringify(this.get(varToCopy))\n        } catch (e) {\n            log('error', 'copyToClipboard', `Could not copy \"${varToCopy}\" to clipboard.`, e.message)()\n        }\n        navigator.clipboard.writeText(data)\n    } // --- End of copyToClipboard --- //\n\n    /** DEPRECATED FOR NOW - wasn't working properly.\n     * Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.\n     * Requires IntersectionObserver (available to all mainstream browsers from early 2019)\n     * Automatically sends a msg back to Node-RED.\n     * Requires the element to already exist.\n     */\n    elementIsVisible() {\n        const info = 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'\n        log('error', 'uib:elementIsVisible', info)()\n        this.send({payload: 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'})\n        return false\n    } // --- End of elementIsVisible --- //\n\n    /** Does the chosen CSS Selector currently exist?\n     * Automatically sends a msg back to Node-RED unless turned off.\n     * @param {string} cssSelector Required. CSS Selector to examine for visibility\n     * @param {boolean} [msg] Optional, default=true. If true also sends a message back to Node-RED\n     * @returns {boolean} True if the element exists\n     */\n    elementExists(cssSelector, msg = true) {\n        const el = document.querySelector(cssSelector)\n\n        let exists = false\n        if (el !== null) exists = true\n\n        if (msg === true) {\n            this.send({\n                payload: exists,\n                info: `Element \"${cssSelector}\" ${exists ? 'exists' : 'does not exist'}`\n            })\n        }\n\n        return exists\n    } // --- End of elementExists --- //\n\n    /** Only keep the URL Hash & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return '#' + url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Set up an event listener to watch for hash changes\n     * and set the watchable urlHash variable\n     */\n    _watchHashChanges() {\n        this.set('urlHash', location.hash)\n        window.addEventListener('hashchange', (event) => {\n            this.set('urlHash', location.hash)\n            if (this.#sendUrlHash === true) {\n                this.send({ topic: 'hashChange', payload: location.hash, newHash: this.keepHashFromUrl(event.newURL), oldHash: this.keepHashFromUrl(event.oldURL) })\n            }\n        })\n    }\n\n    /** Returns true/false or a default value for truthy/falsy and other values\n     * @param {string|number|boolean|*} val The value to test\n     * @param {any} deflt Default value to use if the value is not truthy/falsy\n     * @returns {boolean|any} The truth! Or the default\n     */\n    truthy(val, deflt) {\n        let ret\n        if (['on', 'On', 'ON', 'true', 'True', 'TRUE', '1', true, 1].includes(val)) ret = true\n        else if (['off', 'Off', 'OFF', 'false', 'False', 'FALSE', '0', false, 0].includes(val)) ret = false\n        else ret = deflt\n        return ret\n    }\n\n    /** Turn on/off/toggle sending URL hash changes back to Node-RED\n     * @param {string|number|boolean|undefined} [toggle] Optional on/off/etc\n     * @returns {boolean} True if we will send a msg to Node-RED on a hash change\n     */\n    watchUrlHash(toggle) {\n        this.#sendUrlHash = this.truthy(toggle, this.#sendUrlHash !== true)\n        return this.#sendUrlHash\n    }\n\n    /** Navigate to a new page or a new route (hash)\n     * @param {string} url URL to navigate to. Can be absolute or relative (to current page) or just a hash for a route change\n     * @returns {Location} The new window.location string\n     */\n    navigate(url) {\n        if (url) window.location.href = url\n        return window.location\n    }\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- UI handlers --------- //\n\n    //#region -- Direct to _ui --\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        _ui.ui(json)\n    }\n\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        _ui.replaceSlot(el, component)\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        _ui.replaceSlotMarkdown(el, component)\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        return _ui.convertMarkdown(mdText)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        return _ui.sanitiseHTML(html)\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        _ui.loadScriptSrc(url)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        _ui.loadStyleSrc(url)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        _ui.loadScriptTxt(textFn)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        _ui.loadStyleTxt(textFn)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) {\n        _ui.showDialog(type, ui, msg)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        _ui.loadui(url)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        return _ui.uiGet(cssSelector, propName)\n    }\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     */\n    async include(url, uiOptions) {\n        _ui.include(url, uiOptions)\n    }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} component Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, component) {\n        _ui.uiEnhanceElement(el, component)\n    }\n\n    //#endregion -- direct to _ui --\n\n    /** * Show/hide a display card on the end of the visible HTML that will dynamically display the last incoming msg from Node-RED\n     * The card has the id `uib_last_msg`. Updates are done from a listener set up in the start function.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showMsg(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowMsg\n        this.#isShowMsg = showHide\n        let slot = 'Waiting for a message from Node-RED'\n\n        if (this.msg && Object.keys(this.msg).length > 0) {\n            slot = this.syntaxHighlight(this.msg)\n        }\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_last_msg_wrap',\n                ],\n            })\n        } else {\n            _ui._uiReplace({\n                components: [\n                    {\n                        type: 'div',\n                        id: 'uib_last_msg_wrap',\n                        parent: parent,\n                        attributes: {\n                            title: 'Last message from Node-RED',\n                        },\n                        components: [\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.copyToClipboard(\"msg\")',\n                                    class: 'compact',\n                                    style: 'right:3em;',\n                                },\n                                slot: '\uD83D\uDCCB',\n                            },\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.showMsg()',\n                                    class: 'compact',\n                                    style: 'right:.5em;',\n                                },\n                                slot: '\u26D4',\n                            },\n                            {\n                                type: 'pre',\n                                id: 'uib_last_msg',\n                                // parent: 'uib_last_msg_wrap',\n                                attributes: {\n                                    class: 'syntax-highlight',\n                                },\n                                slot: slot,\n                            },\n                        ],\n                    },\n                ],\n            })\n        }\n\n        return showHide\n    }\n\n    /** Show a browser notification if possible.\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * @example uibuilder.notify( 'My simple message to the user' )\n     * @example uibuilder.notify( {topic: 'My Title', payload: 'My simple message to the user'} )\n     * @example uibuilder.notify( {title: 'My Title', body: 'My simple message to the user'} )\n     * @example // If config.return = true, a promise is returned.\n     * // The resolved promise is only returned if the notification is clicked by the user.\n     * // Can be used to send the response back to Node-RED\n     * uibuilder.notify(notifyConfig).then( res => uibuilder.eventSend(res) )\n     * @ref https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config data or simple message string\n     * @returns {Promise<Event>|null} A promise that resolves to the click event or null\n     */\n    notify(config) {\n        if (config.return) return _ui.notification(config)\n\n        _ui.notification(config)\n            .then( res => { // eslint-disable-line promise/always-return\n                log('info', 'Uib:notification', 'Notification completed event', res)()\n                // if (config.return) return res\n            })\n            .catch( err => {\n                log('error', 'Uib:notification', 'Notification error event', err)()\n            })\n        return null\n    }\n\n    /** Scroll the page\n     * https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollIntoView\n     * @param {string} [cssSelector] Optional. If not set, scrolls to top of page.\n     * @param {{block:(string|undefined),inline:(string|undefined),behavior:(string|undefined)}} [opts] Optional. DOM scrollIntoView options\n     * @returns {boolean} True if element was found, false otherwise\n     */\n    scrollTo(cssSelector, opts) {\n        // @ts-ignore\n        if (!opts) opts = {}\n        if (!cssSelector || cssSelector === 'top'  || cssSelector === 'start') cssSelector = 'body'\n        else if (cssSelector === 'bottom' || cssSelector === 'end') {\n            cssSelector = 'body'\n            opts.block = 'end'\n        }\n        const el = this.$(cssSelector)\n        if (el) {\n            el.scrollIntoView(opts)\n            return true\n        }\n        return false\n    }\n\n    /** Show/hide a display card on the end of the visible HTML that will dynamically display the current status of the uibuilder client\n     * The card has the id `uib_status`.\n     * The display is updated by an event listener created in the class constructor.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showStatus(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowStatus\n        this.#isShowStatus = showHide\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_status',\n                ],\n            })\n            return showHide\n        }\n\n        const root = {\n            components: [\n                {\n                    type: 'div',\n                    id: 'uib_status',\n                    parent: parent,\n                    attributes: {\n                        title: 'Current status of the uibuilder client',\n                        class: 'text-smaller',\n                    },\n                    components: [\n                        {\n                            'type': 'table',\n                            'components': [\n                                {\n                                    'type': 'tbody',\n                                    'components': []\n                                }\n                            ]\n                        }\n                    ]\n                }\n            ]\n        }\n        const details = root.components[0].components[0].components[0].components\n\n        Object.values(this.#showStatus).forEach( entry => {\n            details.push({\n                'type': 'tr',\n                'attributes': {\n                    title: entry.description,\n                },\n                'components': [\n                    {\n                        'type': 'th',\n                        'slot': entry.label,\n                    },\n                    {\n                        'type': 'td',\n                        'attributes': {\n                            'data-varType': entry.var,\n                        },\n                        'slot': entry.var === 'version' ? Uib._meta.version : JSON.stringify(this[entry.var]),\n                    }\n                ],\n            })\n        })\n\n        _ui._uiReplace(root)\n\n        return showHide\n    }\n\n    /** Use the Mutation Observer browser API to watch for changes to a single element on the page.\n     * OMG! It is sooo hard to turn the data into something that successfully serialises so it can be sent back to Node-RED!\n     * NB: Each cssSelector creates a unique watcher. Sending the same selector overwrites the previous one.\n     * @param {string} cssSelector A CSS Selector that selects the element to watch for changes\n     * @param {boolean|\"toggle\"} [startStop] true=start watching the DOM, false=stop. Default='toggle'\n     * @param {boolean} [send] true=Send changes to Node-RED, false=Don't send. Default=true\n     * @param {boolean} [showLog] true=Output changes to log, false=stop. Default=true. Log level is 2 (Info)\n     * @returns {boolean} True if the watch is on, false otherwise\n     */\n    uiWatch(cssSelector, startStop = 'toggle', send = true, showLog = true) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.querySelector(cssSelector)\n        if (!targetNode) {\n            log('warn', 'uibuilder.module.js:uiWatch', `CSS Selector '${cssSelector}' not found.`)()\n            return false\n        }\n\n        if (startStop === 'toggle' || startStop === undefined || startStop === null) {\n            if (this.#uiObservers[cssSelector]) startStop = false\n            else startStop = true\n        }\n\n        // Need a ref to the Uib this\n        const that = this\n\n        if (startStop === true) {\n            // Create an observer instance\n            this.#uiObservers[cssSelector] = new MutationObserver( function( mutationList /* , observer */ ) {\n                const out = []\n\n                mutationList.forEach( mu => {\n                    // console.log({ mu })\n                    const oMu = {\n                        type: mu.type,\n                        oldValue: mu.oldValue !== null ? mu.oldValue : undefined,\n                    }\n\n                    if (mu.addedNodes.length > 0) {\n                        oMu.addedNodes = []\n                        mu.addedNodes.forEach( (an, i) => {\n                            oMu.addedNodes.push(_ui.nodeGet(mu.addedNodes[i]))\n                        })\n                    }\n\n                    if (mu.removedNodes.length > 0) {\n                        oMu.removedNodes = []\n                        mu.removedNodes.forEach( (an, i) => {\n                            oMu.removedNodes.push(_ui.nodeGet(mu.removedNodes[i]))\n                        })\n                    }\n\n                    if ( mu.type === 'attributes' ) {\n                        oMu.attributeName = mu.attributeName\n                        // @ts-ignore\n                        oMu.newValue = mu.target.attributes[mu.attributeName].value\n                    }\n\n                    out.push(oMu)\n                })\n\n                // Custom event\n                that._dispatchCustomEvent('uibuilder:domChange', out)\n                // Send a msg back to node-red\n                if (send === true) {\n                    that.send({\n                        _ui: {\n                            cssSelector: cssSelector,\n                            uiChanges: out\n                        },\n                        topic: that.topic || `DOM Changes for '${cssSelector}'`,\n                    })\n                }\n                // Log to info\n                if (showLog === true) {\n                    log('info', 'uibuilder.module.js:uiWatch', `DOM Changes for '${cssSelector}'`, { uiChanges: out }, { mutationList })()\n                }\n            } )\n\n            // Start observing the target node for configured mutations\n            this.#uiObservers[cssSelector].observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:uiWatch', `Started Watching DOM changes for '${cssSelector}'`)()\n        } else {\n            this.#uiObservers[cssSelector].disconnect()\n            delete this.#uiObservers[cssSelector]\n            log('trace', 'uibuilder.module.js:uiWatch', `Stopped Watching DOM changes for '${cssSelector}'`)()\n        }\n\n        return startStop\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- HTML cache and DOM watch --------- //\n\n    /** Clear the saved DOM from localStorage */\n    clearHtmlCache() {\n        this.removeStore('htmlCache')\n        log('trace', 'uibuilder.module.js:clearHtmlCache', 'HTML cache cleared')()\n    }\n\n    /** Restore the complete DOM (the whole web page) from browser localStorage if available */\n    restoreHtmlFromCache() {\n        // Is the html cached? If so, restore it\n        const htmlCache = this.getStore('htmlCache')\n        if (htmlCache) {\n            const targetNode = document.getElementsByTagName('html')[0]\n            // Restore the entire HTML\n            targetNode.innerHTML = htmlCache\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'Restored HTML from cache')()\n        } else {\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'No cache to restore')()\n        }\n    }\n\n    /** Save the current DOM state to browser localStorage.\n     * localStorage is persistent and so can be recovered even after a browser restart.\n     */\n    saveHtmlCache() {\n        // Save the updated entire HTML in localStorage\n        this.setStore('htmlCache', document.documentElement.innerHTML)\n    }\n\n    /** Use the Mutation Observer browser API to watch for and save changes to the HTML\n     * Once the observer is created, it will be reused.\n     * Sending true or undefined will turn on the observer, false turns it off.\n     * saveHtmlCache is called whenever anything changes in the dom. This allows\n     * users to call restoreHtmlFromCache() on page load if desired to completely reload\n     * to the last saved state.\n     * @param {boolean} startStop true=start watching the DOM, false=stop\n     */\n    watchDom(startStop) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.documentElement\n\n        // Need a ref to the Uib this\n        const that = this\n\n        // Create an observer instance\n        if (!this._htmlObserver) {\n            this._htmlObserver = new MutationObserver( function(/* mutationList, observer */) {\n                // We don't need to know the details - so kill off any outstanding mutation records\n                this.takeRecords()\n                // Save the updated entire HTML in localStorage\n                that.saveHtmlCache()\n            } )\n        }\n\n        if (startStop === true || startStop === undefined) {\n            // Start observing the target node for configured mutations\n            this._htmlObserver.observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:watchDom', 'Started Watching and saving DOM changes')()\n        } else {\n            this._htmlObserver.disconnect()\n            log('trace', 'uibuilder.module.js:watchDom', 'Stopped Watching and saving DOM changes')()\n        }\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- Message Handling (To/From Node-RED) -------- //\n\n    /** Internal send fn. Send a standard or control msg back to Node-RED via Socket.IO\n     * NR will generally expect the msg to contain a payload topic\n     * @param {object} msgToSend The msg object to send.\n     * @param {string} [channel=uiBuilderClient] The Socket.IO channel to use, must be in self.ioChannels or it will be ignored\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    _send(msgToSend, channel, originator = '') {\n        if (channel === null || channel === undefined) channel = this._ioChannels.client\n\n        // Make sure msgToSend is an object\n        if (channel === this._ioChannels.client) {\n            msgToSend = makeMeAnObject(msgToSend, 'payload')\n        } else if (channel === this._ioChannels.control) {\n            msgToSend = makeMeAnObject(msgToSend, 'uibuilderCtrl')\n            if (!Object.prototype.hasOwnProperty.call(msgToSend, 'uibuilderCtrl')) {\n                msgToSend.uibuilderCtrl = 'manual send'\n            }\n            // help remember where this came from as ctrl msgs can come from server or client\n            msgToSend.from = 'client'\n        }\n\n        /** since 2020-01-02 Added _socketId which should be the same as the _socketId on the server */\n        msgToSend._socketId = this._socket.id\n\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n\n        // Add the originator metadata if required\n        if (originator === '' && this.originator !== '') originator = this.originator\n        if (originator !== '') Object.assign(msgToSend, { '_uib': { 'originator': originator } })\n\n        // If the msg does not have a topic - see if we want to add one\n        if ( !Object.prototype.hasOwnProperty.call(msgToSend, 'topic') ) {\n            // From the default (`uibuilder.set('topic', 'some topic')`)\n            if (this.topic !== undefined && this.topic !== '') msgToSend.topic = this.topic\n            else {\n                // Did the last inbound msg have a topic?\n                if ( Object.prototype.hasOwnProperty.call(this, 'msg') && Object.prototype.hasOwnProperty.call(this.msg, 'topic') ) {\n                    msgToSend.topic = this.msg.topic\n                }\n            }\n        }\n\n        // If a standard send & _ui property exists, make sure to add _ui.from = 'client'\n        if (msgToSend._ui) msgToSend._ui.from = 'client'\n\n        // Track how many messages have been sent & last msg sent\n        let numMsgs\n        if (channel === this._ioChannels.client) {\n            this.set('sentMsg', msgToSend)\n            numMsgs = this.set('msgsSent', ++this.msgsSent)\n        } else if (channel === this._ioChannels.control) {\n            this.set('sentCtrlMsg', msgToSend)\n            numMsgs = this.set('msgsSentCtrl', ++this.msgsSentCtrl)\n        }\n        log('trace', 'Uib:_send', ` Channel '${channel}'. Sending msg #${numMsgs}`, msgToSend)()\n\n        this._socket.emit(channel, msgToSend)\n    } // --- End of Send Msg Fn --- //\n\n    /** Send a standard message to NR\n     * @example uibuilder.send({payload:'Hello'})\n     * @param {object} msg Message to send\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    send(msg, originator = '') {\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Send a control msg to NR\n     * @param {object} msg Message to send\n     */\n    sendCtrl(msg) {\n        this._send(msg, this._ioChannels.control)\n    }\n\n    /** Easily send a msg back to Node-RED on a DOM event\n     * @example In plain HTML/JavaScript\n     *    `<button id=\"button1\" name=\"button 1\" data-fred=\"jim\"></button>`\n     *    $('#button1').onclick = (evt) => {\n     *      uibuilder.eventSend(evt)\n     *    }\n     * @example\n     * In VueJS: `<b-button id=\"myButton1\" @click=\"doEvent\" data-something=\"hello\"></b-button>`\n     * In VueJS methods: `doEvent: uibuilder.eventSend,`\n     *\n     * All `data-` attributes will be passed back to Node-RED,\n     *    use them instead of arguments in the click function.\n     *    All target._ui custom properties are also passed back to Node-RED.\n     *\n     * @param {MouseEvent|any} domevent DOM Event object\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    eventSend(domevent, originator = '') { // eslint-disable-line sonarjs/cognitive-complexity\n        // @ts-ignore Handle case where vue messes up `this`\n        if ( this.$attrs ) {\n            log('error', 'Uib:eventSend', '`this` has been usurped by VueJS. Make sure that you wrap the call in a function: `doEvent: function (event) { uibuilder.eventSend(event) },`' )()\n            return\n        }\n        if (!domevent && !event) {\n            log('warn', 'Uib:eventSend', 'Neither the domevent nor the hidden event properties are set. You probably called this function directly rather than applying to an on click event.' )()\n            return\n        }\n        // Handle no argument, e.g. <button onClick=\"uibuilder.eventSend()\"> - event is a hidden variable when fn used in addEventListener\n        if (!domevent || !domevent.constructor) domevent = event\n\n        // The argument must be a DOM event\n        if ((!domevent.constructor.name.endsWith('Event')) || (!domevent.currentTarget)) {\n            log('warn', 'Uib:eventSend', `ARGUMENT NOT A DOM EVENT - use data attributes not function arguments to pass data. Arg Type: ${domevent.constructor.name}`, domevent)()\n            return\n        }\n\n        // Prevent default event action\n        domevent.preventDefault()\n\n        // The target element\n        const target = domevent.currentTarget\n\n        // Get target properties - only shows custom props not element default ones\n        const props = {}\n        Object.keys(target).forEach( key => {\n            if (key.startsWith('_')) return // Exclude private\n            props[key] = target[key]\n        })\n\n        // Attempt to get target attributs - can fail for certain target types\n        const ignoreAttribs = ['class', 'id', 'name']\n        let attribs\n        try {\n            attribs = Object.assign({},\n                ...Array.from(target.attributes,\n                    ( { name, value } ) => {\n                        if ( !ignoreAttribs.includes(name) ) {\n                            return ({ [name]: value })\n                        }\n                        return undefined\n                    }\n                )\n            )\n        } catch (e) {}\n\n        // If target embedded in a form, include the form data\n        let form\n        const frmVals = []\n        if ( target.form ) {\n            form = {}\n            form.valid = target.form.checkValidity()\n            Object.values(target.form).forEach( (frmEl, i) => {\n                const id = frmEl.id !== '' ? frmEl.id : (frmEl.name !== '' ? frmEl.name : `${i}-${frmEl.type}`)\n\n                // We must have both an element id (we may have forced one above) AND\n                // the element type MUST be not undefined - to allow for the extra properties added by frameworks such as Svelte\n                if (id !== '' && frmEl.type) {\n                    // Stupid HTML doesn't use value attrib for checkboxes. So override if value is set to default\n                    if ('checked' in frmEl && frmEl.value === 'on') frmEl.value = frmEl.checked.toString()\n\n                    frmVals.push( { key: id, val: frmEl.value } ) // simplified for addition to msg.payload\n\n                    form[id] = {\n                        'id': frmEl.id,\n                        'name': frmEl.name,\n                        'value': frmEl.value,\n                        'valid': frmEl.checkValidity(),\n                        'type': frmEl.type,\n                    }\n\n                    if (form[id].valid === false) {\n                        const v = frmEl.validity\n                        form[id].validity = {\n                            badInput: v.badInput === true ? v.badInput : undefined,\n                            customError: v.customError === true ? v.customError : undefined,\n                            patternMismatch: v.patternMismatch === true ? v.patternMismatch : undefined,\n                            rangeOverflow: v.rangeOverflow === true ? v.rangeOverflow : undefined,\n                            rangeUnderflow: v.rangeUnderflow === true ? v.rangeUnderflow : undefined,\n                            stepMismatch: v.stepMismatch === true ? v.stepMismatch : undefined,\n                            tooLong: v.tooLong === true ? v.tooLong : undefined,\n                            tooShort: v.tooShort === true ? v.tooShort : undefined,\n                            typeMismatch: v.typeMismatch === true ? v.typeMismatch : undefined,\n                            valueMissing: v.valueMissing === true ? v.valueMissing : undefined,\n                        }\n                    }\n\n                    if (frmEl.dataset) form[id].data = frmEl.dataset\n                }\n            })\n        }\n\n        // Check for CSS Classes\n        let classes\n        try {\n            classes = Array.from(target.classList)\n        } catch (e) {}\n\n        // Each `data-xxxx` attribute is added as a property\n        let payload = { ...target.dataset }\n\n        // Handle Notification events\n        let nprops\n        if ( Object.prototype.toString.call(target) === '[object Notification]') {\n            // Fixed payload for convenience\n            payload = `notification-${target.userAction}`\n            // Capture the notification properties\n            nprops = {\n                // userAction: target.userAction, // uib custom prop: click, close or error\n                actions: target.actions,\n                badge: target.badge,\n                body: target.body,\n                data: target.data,\n                dir: target.dir,\n                icon: target.icon,\n                image: target.image,\n                lang: target.lang,\n                renotify: target.renotify,\n                requireInteraction: target.requireInteraction,\n                silent: target.silent,\n                tag: target.tag,\n                timestamp: target.timestamp,\n                title: target.title,\n                vibrate: target.vibrate,\n            }\n        }\n        // console.log(Object.prototype.toString.call(target))\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            // - this may be an empty Object if no data attributes defined\n            payload: payload,\n\n            _ui: {\n                type: 'eventSend',\n                id: target.id !== '' ? target.id : undefined,\n                name: target.name !== '' ? target.name : undefined,\n                slotText: target.textContent ? target.textContent.substring(0, 255) : undefined,\n\n                form: form,\n                props: props,\n                attribs: attribs,\n                classes: classes,\n\n                notification: nprops,\n\n                event: domevent.type,\n                altKey: domevent.altKey,\n                ctrlKey: domevent.ctrlKey,\n                shiftKey: domevent.shiftKey,\n                metaKey: domevent.metaKey,\n\n                pointerType: domevent.pointerType,\n                nodeName: target.nodeName,\n\n                clientId: this.clientId,\n                pageName: this.pageName,\n                tabId: this.tabId,\n            }\n        }\n\n        if (frmVals.length > 0) {\n            frmVals.forEach( entry => {\n                msg.payload[entry.key] = entry.val\n            })\n        }\n\n        if (domevent.type === 'change') {\n            // Checkboxes don't have a value!!\n            msg._ui.newValue = msg.payload.value = 'checked' in target ? target.checked : domevent.target.value\n        }\n\n        log('trace', 'Uib:eventSend', 'Sending msg to Node-RED', msg)()\n        if (target.dataset && target.dataset.length === 0) log('warn', 'Uib:eventSend', 'No payload in msg. data-* attributes should be used.')()\n\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Easily send the entire DOM/HTML msg back to Node-RED\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     * @param {boolean} [send] If true (default) directly send response to Node-RED. Is false when calling from Node-RED as a command.\n     * @returns {string} The HTML as a string\n     */\n    htmlSend(originator = '', send = true) {\n        const out = `<!doctype html>\\n${document.documentElement.outerHTML}`\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            payload: out,\n            length: out.length,\n            topic: this.topic,\n        }\n\n        log('trace', 'Uib:htmlSend', 'Sending full HTML to Node-RED', msg)()\n\n        if (send === true) this._send(msg, this._ioChannels.client, originator)\n        return out\n    }\n\n    /** Process msg._uib.command - Remember to update #extCommands with new allowed commands\n     * @param {object} msg Msg from Node-RED containing a msg._uib object\n     */\n    _uibCommand(msg) {\n        if (!msg._uib || !msg._uib.command) {\n            log('error', 'uibuilder:_uibCommand', 'Invalid command message received', { msg })()\n            msg.payload = msg.error = 'Invalid command message received'\n            this.send(msg)\n            return\n        }\n        const cmd = msg._uib.command\n        // Disallowed command request outputs error and ignores the msg (NB: Case must match)\n        if (!this.#extCommands.includes(cmd.trim())) {\n            log('error', 'Uib:_uibCommand', `Command '${cmd} is not allowed to be called externally`)()\n            return\n        }\n        const prop = msg._uib.prop\n        const value = msg._uib.value\n        const quiet = msg._uib.quiet ?? false\n        let response, info\n\n        // Don't forget to update `#extCommands`, `docs/client-docs/control-from-node-red.md` & `functions.md`\n        switch (cmd) {\n            case 'elementIsVisible': {\n                response = this.elementIsVisible(prop)\n                // info = `Element \"${prop}\" ${response ? 'is visible' : 'is not visible'}`\n                break\n            }\n\n            case 'elementExists': {\n                response = this.elementExists(prop, false)\n                info = `Element \"${prop}\" ${response ? 'exists' : 'does not exist'}`\n                break\n            }\n\n            case 'get': {\n                response = this.get(prop)\n                break\n            }\n\n            case 'getManagedVarList': {\n                if (prop === 'full') response = this.getManagedVarList()\n                else response = Object.values(this.getManagedVarList())\n                break\n            }\n\n            case 'getWatchedVars': {\n                if (prop === 'full') response = this.getWatchedVars()\n                else response = Object.values(this.getWatchedVars())\n                break\n            }\n\n            case 'htmlSend': {\n                response = this.htmlSend('', false)\n                break\n            }\n\n            case 'include': {\n                // include is async\n                response = _ui.include(prop, value)\n                break\n            }\n\n            case 'navigate': {\n                let newUrl\n                if (prop) newUrl = prop\n                else if (value) newUrl = value\n                response = this.navigate(newUrl)\n                break\n            }\n\n            case 'scrollTo': {\n                response = this.scrollTo(prop, value)\n                break\n            }\n\n            case 'set': {\n                let store = false\n                let autoload = false\n                if (msg._uib.options && msg._uib.options.store) {\n                    if (msg._uib.options.store === true) store = true\n                    if (msg._uib.options.autoload === true) autoload = true\n                }\n                response = this.set(prop, value, store, autoload)\n                break\n            }\n\n            case 'showMsg': {\n                response = this.showMsg(value, prop)\n                break\n            }\n\n            case 'showStatus': {\n                response = this.showStatus(value, prop)\n                break\n            }\n\n            case 'uiGet': {\n                response = _ui.uiGet(prop, value)\n                break\n            }\n\n            case 'uiWatch': {\n                response = this.uiWatch(prop)\n                break\n            }\n\n            case 'watchUrlHash': {\n                response = this.watchUrlHash(prop)\n                break\n            }\n\n            default: {\n                log('warning', 'Uib:_uibCommand', `Command '${cmd}' not yet implemented`)()\n                break\n            }\n        }\n\n        if (quiet !== true) {\n            if (response === undefined) {\n                response = `'${prop}' is undefined`\n            }\n            if (Object(response).constructor === Promise) {\n                // response = `'${cmd} ${prop}' submitted. Cmd is async, no response available`\n                response\n                    .then( (/** @type {any} */ data) => {\n                        msg.payload = msg._uib.response = data\n                        msg.info = msg._uib.info = info\n                        if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                        this.send(msg)\n                        return true\n                    })\n                    .catch( err => {\n                        log(0, 'Uib:_uibCommand', 'Error: ', err)()\n                    })\n            } else {\n                msg.payload = msg._uib.response = response\n                msg.info = msg._uib.info = info\n                if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                this.send(msg)\n            }\n        }\n    } // --- end of _uibCommand ---\n\n    /** Do we want to process something? Check pageName, clientId, tabId. Defaults to yes.\n     * @param {*} obj Either a msg._ui or msg._uib object to check\n     * @returns {boolean} True if we should process the inbound _ui/_uib msg, false if not.\n     */\n    _forThis(obj) {\n        let r = true\n\n        // Is this msg for this pageName?\n        if (obj.pageName && obj.pageName !== this.pageName) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this page')()\n            r = false\n        }\n\n        // Is this msg for this clientId?\n        if (obj.clientId && obj.clientId !== this.clientId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this clientId')()\n            r = false\n        }\n\n        // Is this msg for this tabId?\n        if (obj.tabId && obj.tabId !== this.tabId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this tabId')()\n            r = false\n        }\n\n        return r\n    }\n\n    // Handle received messages - Process some msgs internally, emit specific events on document that make it easy for coders to use\n    _msgRcvdEvents(msg) {\n        // Message received\n        this._dispatchCustomEvent('uibuilder:stdMsgReceived', msg)\n\n        // Topic\n        if ( msg.topic ) this._dispatchCustomEvent(`uibuilder:msg:topic:${msg.topic}`, msg)\n\n        // Handle msg._uib special requests\n        if (msg._uib) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._uib)) return\n\n            /** Process a client reload request from Node-RED - as the page is reloaded, everything else is ignored\n             * Note that msg._ui.reload is also actioned via the _ui processing below */\n            if (msg._uib.reload === true) {\n                log('trace', 'Uib:_msgRcvdEvents:_uib:reload', 'reloading')()\n                location.reload()\n                return\n            }\n\n            // Process msg._uib.command messages - allows Node-RED to run uibuilder FE functions\n            if (msg._uib.command) {\n                this._uibCommand(msg)\n                return\n            }\n\n            // Better to request via msg._ui - these are for backwards compatibility\n            if ( msg._uib.componentRef === 'globalNotification' ) {\n                _ui.showDialog('notify', msg._uib.options, msg)\n            }\n            if ( msg._uib.componentRef === 'globalAlert' ) {\n                _ui.showDialog('alert', msg._uib.options, msg)\n            }\n        }\n\n        // Handle msg._ui requests\n        if ( msg._ui ) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._ui)) return\n\n            log('trace', 'Uib:_msgRcvdEvents:_ui', 'Calling _uiManager')()\n            this._dispatchCustomEvent('uibuilder:msg:_ui', msg)\n            _ui._uiManager(msg)\n        }\n    } // --- end of _msgRcvdEvents ---\n\n    /** Callback handler for messages from Node-RED\n     * NOTE: `this` is the class here rather the `socket` as would be normal since we bind the correct `this` in the call.\n     *       Use this._socket if needing reference to the socket.\n     * @callback ioSetupFromServer Called from ioSetup/this._socket.on(this.#ioChannels.server, this.stdMsgFromServer.bind(this))\n     * @param {object} receivedMsg The msg object from Node-RED\n     * @this Uib\n     */\n    _stdMsgFromServer(receivedMsg) {\n\n        // Make sure that msg is an object & not null\n        receivedMsg = makeMeAnObject(receivedMsg, 'payload')\n\n        // Don't process if the inbound msg is not for us\n        if (receivedMsg._uib && !this._forThis(receivedMsg._uib)) return\n        if (receivedMsg._ui && !this._forThis(receivedMsg._ui)) return\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedMsg)\n\n        // Track how many messages have been received\n        this.set('msgsReceived', ++this.msgsReceived)\n\n        // Emit specific document events on msg receipt that make it easy for coders to use\n        this._msgRcvdEvents(receivedMsg)\n\n        if ( !('_ui' in receivedMsg && !('payload' in receivedMsg)) ) {\n            // Save the msg for further processing\n            this.set('msg', receivedMsg)\n        }\n\n        log('info', 'Uib:ioSetup:stdMsgFromServer', `Channel '${this._ioChannels.server}'. Received msg #${this.msgsReceived}.`, receivedMsg)()\n\n        // ! NOTE: Don't try to handle specialist messages here. See _msgRcvdEvents.\n\n    } // -- End of websocket receive DATA msg from Node-RED -- //\n\n    /** Handles original control msgs (not to be confused with \"new\" msg._uib controls)\n     * @param {*} receivedCtrlMsg The msg received on the socket.io control channel\n     */\n    _ctrlMsgFromServer(receivedCtrlMsg) {\n\n        // Make sure that msg is an object & not null\n        if (receivedCtrlMsg === null) {\n            receivedCtrlMsg = {}\n        } else if (typeof receivedCtrlMsg !== 'object') {\n            const msg = {}\n            msg['uibuilderCtrl:' + this._ioChannels.control] = receivedCtrlMsg\n            receivedCtrlMsg = msg\n        }\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedCtrlMsg)\n\n        this.set('ctrlMsg', receivedCtrlMsg)\n        this.set('msgsCtrlReceived', ++this.msgsCtrlReceived)\n\n        log('trace', 'Uib:ioSetup:_ctrlMsgFromServer', `Channel '${this._ioChannels.control}'. Received control msg #${this.msgsCtrlReceived}`, receivedCtrlMsg)()\n\n        /** Process control msg types */\n        switch (receivedCtrlMsg.uibuilderCtrl) {\n            // Node-RED is shutting down\n            case 'shutdown': {\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, '\u274C Received \"shutdown\" from server')()\n                this.set('serverShutdown', undefined)\n                break\n            }\n\n            /** We are connected to the server - 1st msg from server */\n            case 'client connect': {\n                log('trace', `Uib:ioSetup:${this._ioChannels.control}`, 'Received \"client connect\" from server')()\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, `\u2705 Server connected. Version: ${receivedCtrlMsg.version}\\nServer time: ${receivedCtrlMsg.serverTimestamp}, Sever time offset: ${this.serverTimeOffset} hours`)()\n\n                if ( !Uib._meta.version.startsWith(receivedCtrlMsg.version.split('-')[0]) ) {\n                    log('warn', `Uib:ioSetup:${this._ioChannels.control}`, `Server version (${receivedCtrlMsg.version}) not the same as the client version (${Uib._meta.version})`)()\n                }\n\n                if (this.autoSendReady === true) { // eslint-disable-line no-lonely-if\n                    log('trace', `Uib:ioSetup:${this._ioChannels.control}/client connect`, 'Auto-sending ready-for-content/replay msg to server')\n                    // @since 0.4.8c Add cacheControl property for use with node-red-contrib-infocache\n                    // @since 6.1.0 Don't bother, we use the \"client connect\" msg\n                    // this._send({\n                    //     'uibuilderCtrl': 'ready for content',\n                    //     'cacheControl': 'REPLAY',\n                    // }, this._ioChannels.control)\n                }\n\n                break\n            }\n\n            default: {\n                log('trace', `uibuilderfe:ioSetup:${this._ioChannels.control}`, `Received ${receivedCtrlMsg.uibuilderCtrl} from server`)\n                // Anything else to do for other control msgs?\n            }\n\n        } // ---- End of process control msg types ---- //\n\n    } // -- End of websocket receive CONTROL msg from Node-RED -- //\n\n    /** Send log text to uibuilder's beacon endpoint (works even if socket.io not connected)\n     * @param {string} txtToSend Text string to send\n     * @param {string|undefined} logLevel Log level to use. If not supplied, will default to debug\n     */\n    beaconLog(txtToSend, logLevel) {\n        if (!logLevel) logLevel = 'debug'\n        navigator.sendBeacon('./_clientLog', `${logLevel}::${txtToSend}`)\n    }\n\n    /** Send log info back to Node-RED over uibuilder's websocket control output (Port #2)\n     * @param {...*} arguments All arguments passed to the function are added to the msg.payload\n     */\n    logToServer() {\n        this.sendCtrl({\n            uibuilderCtrl: 'client log message',\n            payload: arguments,\n            // \"version\":\"6.1.0-iife.min\",\n            _socketId: this._socket.id,\n            // \"ip\":\"::1\",\n            clientId: this.clientId,\n            tabId: this.tabId,\n            // \"url\":\"esp-test\",\n            pageName: this.pageName,\n            connections: this.connectedNum,\n            lastNavType: this.lastNavType,\n        })\n    }\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Socket.IO -------- //\n\n    /** Return the Socket.IO namespace\n     * The cookie method is the most reliable but this falls back to trying to work it\n     * out from the URL if cookies not available. That won't work if page is in a sub-folder.\n     * since 2017-10-21 Improve method to cope with more complex paths - thanks to Steve Rickus @shrickus\n     * since 2017-11-10 v1.0.1 Check cookie first then url. cookie works even if the path is more complex (e.g. sub-folder)\n     * since 2020-01-25 Removed httpRoot from namespace to prevent proxy induced errors\n     * @returns {string} Socket.IO namespace\n     */\n    _getIOnamespace() {\n\n        let ioNamespace\n\n        /** Try getting the namespace cookie. */\n        ioNamespace = this.cookies['uibuilder-namespace']\n\n        // if it wasn't available, try using the current url path\n        if (ioNamespace === undefined || ioNamespace === '') {\n            // split url path & eliminate any blank elements, and trailing or double slashes\n            const u = window.location.pathname.split('/')\n                .filter(function (t) { return t.trim() !== '' })\n\n            /** since v2.0.5 Extra check for 0 length, Issue #73. since 2017-11-06 If the last element of the path is an .html file name, remove it */\n            if (u.length > 0 && (u[u.length - 1].endsWith('.html'))) u.pop()\n\n            // Get the last part of the url path, this MUST match the namespace in uibuilder\n            ioNamespace = u.pop()\n\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via url path: ${ioNamespace}`)()\n        } else {\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via cookie: ${ioNamespace}`)()\n        }\n\n        this.url = ioNamespace\n        // Namespace HAS to start with a /\n        ioNamespace = '/' + ioNamespace\n\n        log('trace', 'uibuilder.module.js:getIOnamespace', `Final Socket.IO namespace: ${ioNamespace}`)()\n\n        return ioNamespace\n    } // --- End of set IO namespace --- //\n\n    /** Function used to check whether Socket.IO is connected to the server, reconnect if not (recursive)\n     * @param {number} [delay] Initial delay before checking (ms). Default=2000ms\n     * @param {number} [factor] Multiplication factor for subsequent checks (delay*factor). Default=1.5\n     * @param {number} [depth] Recursion depth\n     * @returns {boolean|undefined} Whether or not Socket.IO is connected to uibuilder in Node-RED\n     */\n    _checkConnect(delay, factor, depth = 1) {\n        if ( navigator.onLine === false ) return // Don't bother if we know we are offline\n\n        if (!delay) delay = this.retryMs\n        if (!factor) factor = this.retryFactor\n\n        log('trace', 'Uib:checkConnect', `Checking connection. Connected: ${this._socket.connected}. Timer: ${this.#timerid}. Depth: ${depth}. Delay: ${delay}. Factor: ${factor}`, this._socket)()\n\n        // If we are connected ...\n        if (this._socket.connected === true) {\n            // Clear the setTimeout\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this.set('ioConnected', true)\n            this.set('socketError', null)\n            return true\n        }\n\n        // ... we aren't connected so:\n        this.set('ioConnected', false)\n\n        // we only want one running at a time\n        if (this.#timerid) window.clearTimeout(this.#timerid)\n\n        // Create the new timer\n        this.#timerid = window.setTimeout(() => {\n            log('warn', 'Uib:checkConnect:setTimeout', `Socket.IO reconnection attempt. Current delay: ${delay}. Depth: ${depth}`)()\n\n            // this is necessary sometimes when the socket fails to connect on startup\n            this._socket.close()\n\n            // Try to reconnect\n            this._socket.connect()\n\n            // don't need to check whether we have connected as the timer will have been cleared if we have\n            this.#timerid = null\n\n            // @ts-ignore Create new timer for next time round with extended delay\n            this._checkConnect(delay * factor, factor, depth++)\n        }, delay)\n\n        return false\n    } // --- End of checkConnect Fn--- //\n\n    // See message handling section for msg receipt handlers\n\n    /** Called by _ioSetup when Socket.IO connects to Node-RED */\n    _onConnect() {\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n        log('info', 'Uib:ioSetup', `\u2705 SOCKET CONNECTED. Connection count: ${this.connectedNum}, Is a Recovery?: ${this._socket.recovered}. \\nNamespace: ${this.ioNamespace}`)()\n        this._dispatchCustomEvent('uibuilder:socket:connected', { 'numConnections': this.connectedNum, 'isRecovery': this._socket.recovered })\n\n        this._checkConnect() // resets any reconnection timers & sets connected flag\n    }\n\n    /** Called by _ioSetup when Socket.IO disconnects from Node-RED\n     * @param {string} reason Disconnection title\n     */\n    _onDisconnect(reason) {\n        // reason === 'io server disconnect' - redeploy of Node instance\n        // reason === 'transport close' - Node-RED terminating\n        // reason === 'ping timeout' - didn't receive a pong response?\n        log('info', 'Uib:ioSetup:socket-disconnect', `\u26D4 Socket Disconnected. Reason: ${reason}`)()\n\n        this._dispatchCustomEvent('uibuilder:socket:disconnected', reason)\n\n        /** A workaround for SIO's failure to reconnect after a disconnection */\n        this._checkConnect()\n    }\n\n    /** Setup Socket.io\n     * since v2.0.0-beta2 Moved to a function and called by the user (uibuilder.start()) so that namespace & path can be passed manually if needed\n     * @returns {boolean} Attaches socket.io manager to self._socket and updates self.ioNamespace & self.ioPath as needed\n     */\n    _ioSetup() {\n\n        // Just a notification, actual load is done outside the class (see start of file)\n        if (io === undefined) {\n            log('error', 'Uib:ioSetup', 'Socket.IO client not loaded, Node-RED comms will not work')()\n            return false\n        }\n\n        // If socket is already set up, close it and remove all of the listeners\n        if (this._socket) {\n            log('trace', 'Uib:ioSetup', 'Removing listeners in preparation for redoing Socket.IO connections')()\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this._socket.close()\n            this._socket.offAny()\n            this._socket = undefined\n            this.set('ioConnected', false)\n        }\n\n        // Update the URL path to make sure we have the right one\n        this.socketOptions.path = this.ioPath\n\n        // NOTE: this._socket.auth is now set by callback and so automatically updated for each client (re)connection. No need to set here\n\n        // Create the socket - make sure client uses Socket.IO version from the uibuilder module (using path)\n        log('trace', 'Uib:ioSetup', `About to create IO object. Transports: [${this.socketOptions.transports.join(', ')}]`)()\n        this._socket = io(this.ioNamespace, this.socketOptions)\n\n        /** When the socket is connected - set ioConnected flag and reset connect timer  */\n        this._socket.on('connect', this._onConnect.bind(this))\n\n        // RECEIVE a STANDARD, non-control msg from Node-RED server\n        this._socket.on(this._ioChannels.server, this._stdMsgFromServer.bind(this))\n\n        // RECEIVE a CONTROL msg from Node-RED server - see also sendCtrl()\n        this._socket.on(this._ioChannels.control, this._ctrlMsgFromServer.bind(this))\n\n        // When the socket is disconnected ..............\n        this._socket.on('disconnect', this._onDisconnect.bind(this))\n\n        // Socket.io connection error - probably the wrong ioPath - or client is offline\n        this._socket.on('connect_error', (err) => {\n            if ( navigator.onLine === false ) return // Don't bother with an error if we know we are offline\n            log('error', 'Uib:ioSetup:connect_error', `\u274C Socket.IO Connect Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket connect error processing ---\n\n        // Socket.io error - from the server (socket.use middleware triggered an error response)\n        this._socket.on('error', (err) => {\n            log('error', 'Uib:ioSetup:error', `\u274C Socket.IO Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket error processing ---\n\n        // Ensure we are connected, retry if not\n        this._checkConnect()\n\n        return true\n\n        /* We really don't need these, just for interest\n            self._socket.io.on('packet', function onPacket(data){\n                // we get one of these for each REAL msg (not ping/pong)\n                console.debug('PACKET', data)\n            })\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n                //console.dir(self._socket)\n            }) // --- End of socket pong processing ---\n            self._socket.io.on('packet', function(data){\n                // We get one of these for actual messages, not ping/pong\n                console.debug('PACKET', data)\n            })\n            self._socket.on('connect_timeout', function(timeout) {\n                console.debug('SOCKET CONNECT TIMEOUT - Namespace: ' + ioNamespace + ', Timeout: ' + timeout)\n            }) // --- End of socket connect timeout processing ---\n            self._socket.on('reconnect', function(attemptNum) {\n                console.debug('SOCKET RECONNECTED - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect processing ---\n            self._socket.on('reconnect_attempt', function(attemptNum) {\n                console.debug('SOCKET RECONNECT ATTEMPT - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect_attempt processing ---\n            self._socket.on('reconnecting', function(attemptNum) {\n                console.debug('SOCKET RECONNECTING - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnecting processing ---\n            self._socket.on('reconnect_error', function(err) {\n                console.debug('SOCKET RECONNECT ERROR - Namespace: ' + ioNamespace + ', Reason: ' + err.message)\n                //console.dir(err)\n            }) // --- End of socket reconnect_error processing ---\n            self._socket.on('reconnect_failed', function() {\n                console.debug('SOCKET RECONNECT FAILED - Namespace: ' + ioNamespace)\n            }) // --- End of socket reconnect_failed processing ---\n            self._socket.on('ping', function() {\n                console.debug('SOCKET PING')\n            }) // --- End of socket ping processing ---\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n            }) // --- End of socket pong processing ---\n            */\n    } // ---- End of ioSetup ---- //\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Class construction & startup method -------- //\n\n    constructor() {\n        log('trace', 'Uib:constructor', 'Starting')()\n\n        // Track whether the client is online or offline\n        window.addEventListener('offline', (e) => {\n            this.set('online', false)\n            this.set('ioConnected', false)\n            log('warn', 'Browser', 'DISCONNECTED from network')()\n        })\n        window.addEventListener('online', (e) => {\n            this.set('online', true)\n            log('warn', 'Browser', 'Reconnected to network')()\n            this._checkConnect()\n        })\n\n        document.cookie.split(';').forEach((c) => {\n            const splitC = c.split('=')\n            this.cookies[splitC[0].trim()] = splitC[1]\n        })\n\n        /** Client ID set by uibuilder - lasts until browser profile is closed, applies to all tabs */\n        this.set('clientId', this.cookies['uibuilder-client-id'])\n        log('trace', 'Uib:constructor', 'Client ID: ', this.clientId)()\n\n        /** Tab ID - lasts while the tab is open (even if reloaded)\n         * WARNING: Duplicating a tab retains the same tabId\n         */\n        this.set('tabId', window.sessionStorage.getItem('tabId'))\n        if (!this.tabId) {\n            this.set('tabId', `t${Math.floor(Math.random() * 1000000)}`)\n            window.sessionStorage.setItem('tabId', this.tabId)\n        }\n\n        // document.addEventListener('pagehide', (event) => {\n        //     // console.log(`pagehide. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pagehide. From Cache?: ${event.persisted}`)\n        // })\n        // document.addEventListener('pageshow', (event) => {\n        //     // console.log(`pageshow. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pageshow. From Cache?: ${event.persisted}`)\n        // })\n        document.addEventListener('load', () => {\n            this.set('isVisible', true)\n        })\n        document.addEventListener('visibilitychange', () => {\n            // hidden=unload, minimise. visible=un-minimise (not fired on load)\n            this.set('isVisible', document.visibilityState === 'visible')\n            this.sendCtrl({ uibuilderCtrl: 'visibility', isVisible: this.isVisible })\n            // navigator.userActivation is experimental Chromium only\n            // console.log('visibilitychange', ':', `Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n            // navigator.sendBeacon('./_clientLog', `${(new Date()).toISOString()} Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n        })\n\n        // Set a listener to update showStatus table if it is active\n        document.addEventListener('uibuilder:propertyChanged', (event) => {\n            if (!this.#isShowStatus) return\n\n            // @ts-ignore\n            if (event.detail.prop in this.#showStatus) {\n                // @ts-ignore\n                document.querySelector(`td[data-vartype=\"${event.detail.prop}\"]`).innerText = JSON.stringify(event.detail.value)\n            }\n        })\n\n        this.set('ioNamespace', this._getIOnamespace())\n\n        //#region - Try to make sure client uses Socket.IO client version from the uibuilder module (using cookie or path) @since v2.0.0 2019-02-24 allows for httpNodeRoot\n\n        /** httpNodeRoot (to set path) */\n        if ('uibuilder-webRoot' in this.cookies) {\n            this.set('httpNodeRoot', this.cookies['uibuilder-webRoot'])\n            log('trace', 'Uib:constructor', `httpNodeRoot set by cookie to \"${this.httpNodeRoot}\"`)()\n        } else {\n            // split current url path, eliminate any blank elements and trailing or double slashes\n            const fullPath = window.location.pathname.split('/').filter(function (t) { return t.trim() !== '' })\n            /** handle url includes file name - @since v2.0.5 Extra check for 0 length, Issue #73. */\n            if (fullPath.length > 0 && fullPath[fullPath.length - 1].endsWith('.html')) fullPath.pop()\n            fullPath.pop() // gives the last path section of the url\n            this.set('httpNodeRoot', `/${fullPath.join('/')}`)\n            log('trace', '[Uib:constructor]', `httpNodeRoot set by URL parsing to \"${this.httpNodeRoot}\". NOTE: This may fail for pages in sub-folders.`)()\n        }\n        this.set('ioPath', urlJoin(this.httpNodeRoot, Uib._meta.displayName, 'vendor', 'socket.io'))\n        log('trace', 'Uib:constructor', `ioPath: \"${this.ioPath}\"`)()\n\n        //#endregion\n\n        // Work out pageName\n        this.set('pageName', window.location.pathname.replace(`${this.ioNamespace}/`, ''))\n        if ( this.pageName.endsWith('/') ) this.set('pageName', `${this.pageName}index.html`)\n        if ( this.pageName === '' ) this.set('pageName', 'index.html')\n\n        // Attempt to restore autoload variables\n        try {\n            const autoloadVars = this.getStore('_uibAutoloadVars')\n            if (Object.keys(autoloadVars).length > 0) {\n                Object.keys(autoloadVars).forEach( (id) => {\n                    this.set(id, this.getStore(id))\n                })\n            }\n        } catch (e) {}\n\n        this._dispatchCustomEvent('uibuilder:constructorComplete')\n\n        log('trace', 'Uib:constructor', 'Ending')()\n    }\n\n    /** Start up Socket.IO comms and listeners\n     * This has to be done separately because if running from a web page in a sub-folder of src/dist, uibuilder cannot\n     * necessarily work out the correct ioPath to use.\n     * Also, if cookies aren't permitted in the browser, both ioPath and ioNamespace may need to be specified.\n     * @param {object} [options] The start options object.\n     * @returns {void}\n     */\n    start(options) {\n        log('trace', 'Uib:start', 'Starting')()\n\n        // Cancel the msg event handler if already present\n        if ( this.#MsgHandler ) this.cancelChange('msg', this.#MsgHandler)\n\n        if (this.started === true) {\n            log('info', 'Uib:start', 'Start function already called. Resetting Socket.IO and msg handler.')()\n        }\n\n        log('log', 'Uib:start', 'Cookies: ', this.cookies, `\\nClient ID: ${this.clientId}`)()\n        log('trace', 'Uib:start', 'ioNamespace: ', this.ioNamespace, `\\nioPath: ${this.ioPath}`)()\n\n        // Handle options\n        if (options) {\n            if (options.ioNamespace !== undefined && options.ioNamespace !== null && options.ioNamespace !== '') this.set('ioNamespace', options.ioNamespace)\n            if (options.ioPath !== undefined && options.ioPath !== null && options.ioPath !== '') this.set('ioPath', options.ioPath)\n            // See below for handling of options.loadStylesheet\n        }\n\n        // Do we need to load styles?\n        if ( document.styleSheets.length >= 1 || (document.styleSheets.length === 1 && document.styleSheets[0].cssRules.length === 0) ) {\n            log('info', 'Uib:start', 'Styles already loaded so not loading uibuilder default styles.')()\n        } else {\n            if (options && options.loadStylesheet === false) log('info', 'Uib:start', 'No styles loaded & options.loadStylesheet === false.')()\n            else {\n                log('info', 'Uib:start', 'No styles loaded, loading uibuilder default styles.')()\n                this.loadStyleSrc(`${this.httpNodeRoot}/uibuilder/uib-brand.min.css`)\n            }\n        }\n\n        /** Handle specialist messages like reload and _ui -> Moved to _msgRcvdEvents */\n\n        // Track last browser navigation type: navigate, reload, back_forward, prerender\n        const [entry] = performance.getEntriesByType('navigation')\n        // @ts-ignore\n        this.set('lastNavType', entry.type)\n\n        // Start up (or restart) Socket.IO connections and listeners. Returns false if io not found\n        this.set('started', this._ioSetup())\n\n        if ( this.started === true ) {\n            log('trace', 'Uib:start', 'Start completed. Socket.IO client library loaded.')()\n        } else {\n            log('error', 'Uib:start', 'Start completed. ERROR: Socket.IO client library NOT LOADED.')()\n        }\n\n        // Watch for URL hash changes in case using a front-end router. Updates watched var `urlHash` and socket.io `auth.urlHash`\n        this._watchHashChanges()\n\n        // Check if Vue is present (used for dynamic UI processing)\n        if (window['Vue']) {\n            this.set('isVue', true)\n            try {\n                this.set('vueVersion', window['Vue'].version)\n            } catch (e) { }\n            log('trace', 'Uib:start', `VueJS is loaded. Version: ${this.vueVersion}`)()\n        } else {\n            log('trace', 'Uib:start', 'VueJS is not loaded.')()\n        }\n\n        // Check if DOMPurify library is loaded\n        if (window['DOMPurify']) {\n            this.set('purify', true)\n            log('trace', 'Uib:start', 'DOMPurify is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'DOMPurify is not loaded.')()\n        }\n        // Check if Markdown-IT library is loaded\n        if (window['markdownit']) {\n            this.set('markdown', true)\n            log('trace', 'Uib:start', 'Markdown-IT is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'Markdown-IT is not loaded.')()\n        }\n\n        // if (window['DOMPurify']) {\n        //     this.set('purify', true)\n        //     log('trace', 'Uib:start', 'DOMPurify is loaded.')\n        // } else {\n        //     log('trace', 'Uib:start', 'DOMPurify is not loaded.')\n        // }\n\n        // Set up msg listener for the optional showMsg\n        this.onChange('msg', (msg) => {\n            if (this.#isShowMsg === true) {\n                const eMsg = document.getElementById('uib_last_msg')\n                if (eMsg) eMsg.innerHTML = this.syntaxHighlight(msg)\n            }\n        })\n\n        this._dispatchCustomEvent('uibuilder:startComplete')\n    }\n\n    //#endregion -------- ------------ -------- //\n} // ==== End of Class Uib ====\n\n//#region --- Wrap up - get things started ---\n\n// Create an instance (we will only ever want one)\nconst uibuilder = new Uib()\n\n// Assign reference to the instance to the global `window` object\n// Only useful if loading via <script> tag - prefer loading via `import uibuilder from ...`\nif (!window['uibuilder']) {\n    window['uibuilder'] = uibuilder\n} else {\n    log('error', 'uibuilder.module.js', '`uibuilder` already assigned to window. Have you tried to load it more than once?')\n}\nif (!window['uib']) {\n    window['uib'] = uibuilder\n} else {\n    log('warn', 'uibuilder.module.js', '`uib` shortcut already assigned to window.')\n}\n\n// Assign `$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$`.\nif (!window['$']) {\n    /** @type {HTMLElement} */\n    window['$'] = window['uibuilder'].$ // document.querySelector.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` instead.')\n}\n// Assign `$$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$$']) {\n    /** @type {HTMLElement} */\n    window['$$'] = window['uibuilder'].$$ // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` instead.')\n}\n\n// Can import as `import uibuilder from ...` OR `import {uibuilder} from ...`\nexport { uibuilder }\nexport default uibuilder\n\n// Attempt to run start fn\nuibuilder.start()\n\n// Add the class as a new Custom Element to the window object\ncustomElements.define('uib-var', UibVar)\n\n//#endregion --- Wrap up ---\n\n// EOF\n", "/** A zero dependency web component that will display a managed uibuilder variable.\n *\n * Version: 0.0.1 2023-10-07\n *\n * ToDo:\n * -\n */\n/*\n  Copyright (c) 2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n// const template = document.createElement('template')\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<link type=\"text/css\" rel=\"stylesheet\" href=\"\"../uibuilder/uib-brand.min.css\"\" media=\"all\"><span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`\n// {/* <style>@import url(\"../uibuilder/uib-brand.min.css\");</style><span></span> */}\n// `\n\nexport default class UibVar extends HTMLElement {\n    //#region --- Class Properties ---\n    /** @type {string} Name of the uibuilder mangaged variable to use */\n    variable\n    /** Current value of the watched variable */\n    value\n    /** Whether to output if the variable is undefined */\n    undefined = false\n    /** Whether to send update value to Node-RED on change */\n    report = false\n    /** What is the value type */\n    type = 'plain'\n    /** what are the available types? */\n    types = ['plain', 'html', 'markdown', 'object']\n\n    /** Mini jQuery-like shadow dom selector (see constructor) */\n    $\n    \n    /** Holds a count of how many instances of this component are on the page */\n    static _iCount = 0\n    /** @type {Array<string>} List of all of the html attribs (props) listened to */\n    static props = ['name', 'id', 'variable', 'undefined', 'report', 'type']\n    //#endregion --- Class Properties ---\n\n    constructor() {\n        super()\n        this.shadow = this.attachShadow({ mode: 'open', delegatesFocus: true })\n            // .append(template.content.cloneNode(true))\n\n        this.$ = this.shadowRoot.querySelector.bind(this.shadowRoot)\n\n        // Apply external styles to the shadow dom\n        this.css = document.createElement(\"link\")\n        this.css.setAttribute(\"type\", \"text/css\")\n        this.css.setAttribute(\"rel\", \"stylesheet\")\n        this.css.setAttribute(\"href\", \"../uibuilder/uib-brand.min.css\")\n\n        this.dispatchEvent(new Event(`uib-var:construction`, { bubbles: true, composed: true }))\n    }\n\n    // Makes HTML attribute change watched\n    static get observedAttributes() {\n        return UibVar.props\n    }\n\n    /** NOTE: On initial startup, this is called for each watched attrib set in HTML - BEFORE connectedCallback is called  */\n    attributeChangedCallback(attrib, oldVal, newVal) {\n        if ( oldVal === newVal ) return\n\n        switch (attrib) {\n            case 'variable': {\n                if (newVal === '') throw new Error('[uib-var] Attribute \"variable\" MUST be set to a UIBUILDER managed variable name')\n                this.variable = newVal\n                this.doWatch()\n                break\n            }\n            case 'undefined': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.undefined = true\n                else this.undefined = false\n                break\n            }\n            case 'report': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.report = true\n                else this.report = false\n                break\n            }\n            case 'type': {\n                if (newVal === '' || !this.types.includes(newVal.toLowerCase())) this.type = 'plain'\n                else this.type = newVal\n                break\n            }\n\n            default: {\n                this[attrib] = newVal\n                break\n            }\n        }\n    } // --- end of attributeChangedCallback --- //\n\n    // Runs when an instance is added to the DOM\n    connectedCallback() {\n        // Make sure instance has an ID. Create an id from name or calculation if needed\n        if (!this.id) {\n            if (!this.name) this.name = this.getAttribute('name')\n            if (this.name) this.id = this.name.toLowerCase().replace(/\\s/g, '_')\n            else this.id = `uib-var-${++UibVar._iCount}`\n        }\n    }  // ---- end of connectedCallback ---- //\n\n    // Runs when an instance is removed from the DOM\n    // disconnectedCallback() {} // ---- end of disconnectedCallback ---- //\n\n    /** Process changes to the required uibuilder variable */\n    doWatch() {\n        if (!this.variable) throw new Error('No variable name provided')\n        // if (!window['uibuilder']) throw new Error('UIBUILDER client library not loaded - this component must be loaded AFTER the UIBUILDER library')\n\n        this.value = window['uibuilder'].get(this.variable)\n        this.varDom()\n\n        // Watch for changes in the variable\n        window['uibuilder'].onChange(this.variable, (val) => {\n            this.value = val\n            this.varDom()\n            if (this.report === true) window['uibuilder'].send({topic: this.variable, payload: this.value || undefined})\n        })\n    }\n\n    /** Convert this.value to DOM output */\n    varDom() {\n        // If user doesn't want to show undefined vars, allow the component slot to show instead\n        if (this.value === undefined && this.undefined !== true) { \n            this.shadow.innerHTML = '<slot></slot>'\n            return\n        }\n        \n        let val = this.value\n\n        // console.log('\uD83E\uDDEA varDOM: ', val, typeof val, this.type)\n\n        switch (this.type) {\n            case 'markdown': {\n                this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(window['uibuilder'].convertMarkdown(val))\n                break\n            }\n        \n            case 'object': {\n                // console.log(window['uibuilder'].syntaxHighlight(val))\n                this.shadow.innerHTML = `<pre class=\"syntax-highlight\">${window['uibuilder'].syntaxHighlight(val)}</pre>`\n                break\n            }\n        \n            case 'plain':\n            case 'html':\n            default: {\n                const t = typeof val\n                if (Array.isArray(val) || t === '[object Object]' || t === 'object') {\n                    try {\n                        this.shadow.innerHTML = JSON.stringify(val)\n                    } catch (e) {\n                        this.shadow.innerHTML = val\n                    }\n                } else {\n                    this.shadow.innerHTML = val\n                }\n                break\n            }\n        }\n\n        this.shadow.appendChild(this.css)\n        // this.$('span').innerHTML = window['uibuilder'].sanitiseHTML(val)\n        // this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(val)\n    }\n}\n\n// Add the class as a new Custom Element to the window object \n// customElements.define('uib-var', UibVar)\n", "const PACKET_TYPES = Object.create(null); // no Map = no polyfill\nPACKET_TYPES[\"open\"] = \"0\";\nPACKET_TYPES[\"close\"] = \"1\";\nPACKET_TYPES[\"ping\"] = \"2\";\nPACKET_TYPES[\"pong\"] = \"3\";\nPACKET_TYPES[\"message\"] = \"4\";\nPACKET_TYPES[\"upgrade\"] = \"5\";\nPACKET_TYPES[\"noop\"] = \"6\";\nconst PACKET_TYPES_REVERSE = Object.create(null);\nObject.keys(PACKET_TYPES).forEach(key => {\n    PACKET_TYPES_REVERSE[PACKET_TYPES[key]] = key;\n});\nconst ERROR_PACKET = { type: \"error\", data: \"parser error\" };\nexport { PACKET_TYPES, PACKET_TYPES_REVERSE, ERROR_PACKET };\n", "import { PACKET_TYPES } from \"./commons.js\";\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        Object.prototype.toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\n// ArrayBuffer.isView method is not defined in IE10\nconst isView = obj => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj && obj.buffer instanceof ArrayBuffer;\n};\nconst encodePacket = ({ type, data }, supportsBinary, callback) => {\n    if (withNativeBlob && data instanceof Blob) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(data, callback);\n        }\n    }\n    else if (withNativeArrayBuffer &&\n        (data instanceof ArrayBuffer || isView(data))) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(new Blob([data]), callback);\n        }\n    }\n    // plain string\n    return callback(PACKET_TYPES[type] + (data || \"\"));\n};\nconst encodeBlobAsBase64 = (data, callback) => {\n    const fileReader = new FileReader();\n    fileReader.onload = function () {\n        const content = fileReader.result.split(\",\")[1];\n        callback(\"b\" + (content || \"\"));\n    };\n    return fileReader.readAsDataURL(data);\n};\nfunction toArray(data) {\n    if (data instanceof Uint8Array) {\n        return data;\n    }\n    else if (data instanceof ArrayBuffer) {\n        return new Uint8Array(data);\n    }\n    else {\n        return new Uint8Array(data.buffer, data.byteOffset, data.byteLength);\n    }\n}\nlet TEXT_ENCODER;\nexport function encodePacketToBinary(packet, callback) {\n    if (withNativeBlob && packet.data instanceof Blob) {\n        return packet.data\n            .arrayBuffer()\n            .then(toArray)\n            .then(callback);\n    }\n    else if (withNativeArrayBuffer &&\n        (packet.data instanceof ArrayBuffer || isView(packet.data))) {\n        return callback(toArray(packet.data));\n    }\n    encodePacket(packet, false, encoded => {\n        if (!TEXT_ENCODER) {\n            TEXT_ENCODER = new TextEncoder();\n        }\n        callback(TEXT_ENCODER.encode(encoded));\n    });\n}\nexport { encodePacket };\n", "// imported from https://github.com/socketio/base64-arraybuffer\nconst chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';\n// Use a lookup table to find the index.\nconst lookup = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);\nfor (let i = 0; i < chars.length; i++) {\n    lookup[chars.charCodeAt(i)] = i;\n}\nexport const encode = (arraybuffer) => {\n    let bytes = new Uint8Array(arraybuffer), i, len = bytes.length, base64 = '';\n    for (i = 0; i < len; i += 3) {\n        base64 += chars[bytes[i] >> 2];\n        base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];\n        base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];\n        base64 += chars[bytes[i + 2] & 63];\n    }\n    if (len % 3 === 2) {\n        base64 = base64.substring(0, base64.length - 1) + '=';\n    }\n    else if (len % 3 === 1) {\n        base64 = base64.substring(0, base64.length - 2) + '==';\n    }\n    return base64;\n};\nexport const decode = (base64) => {\n    let bufferLength = base64.length * 0.75, len = base64.length, i, p = 0, encoded1, encoded2, encoded3, encoded4;\n    if (base64[base64.length - 1] === '=') {\n        bufferLength--;\n        if (base64[base64.length - 2] === '=') {\n            bufferLength--;\n        }\n    }\n    const arraybuffer = new ArrayBuffer(bufferLength), bytes = new Uint8Array(arraybuffer);\n    for (i = 0; i < len; i += 4) {\n        encoded1 = lookup[base64.charCodeAt(i)];\n        encoded2 = lookup[base64.charCodeAt(i + 1)];\n        encoded3 = lookup[base64.charCodeAt(i + 2)];\n        encoded4 = lookup[base64.charCodeAt(i + 3)];\n        bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n        bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n        bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n    }\n    return arraybuffer;\n};\n", "import { ERROR_PACKET, PACKET_TYPES_REVERSE } from \"./commons.js\";\nimport { decode } from \"./contrib/base64-arraybuffer.js\";\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nexport const decodePacket = (encodedPacket, binaryType) => {\n    if (typeof encodedPacket !== \"string\") {\n        return {\n            type: \"message\",\n            data: mapBinary(encodedPacket, binaryType)\n        };\n    }\n    const type = encodedPacket.charAt(0);\n    if (type === \"b\") {\n        return {\n            type: \"message\",\n            data: decodeBase64Packet(encodedPacket.substring(1), binaryType)\n        };\n    }\n    const packetType = PACKET_TYPES_REVERSE[type];\n    if (!packetType) {\n        return ERROR_PACKET;\n    }\n    return encodedPacket.length > 1\n        ? {\n            type: PACKET_TYPES_REVERSE[type],\n            data: encodedPacket.substring(1)\n        }\n        : {\n            type: PACKET_TYPES_REVERSE[type]\n        };\n};\nconst decodeBase64Packet = (data, binaryType) => {\n    if (withNativeArrayBuffer) {\n        const decoded = decode(data);\n        return mapBinary(decoded, binaryType);\n    }\n    else {\n        return { base64: true, data }; // fallback for old browsers\n    }\n};\nconst mapBinary = (data, binaryType) => {\n    switch (binaryType) {\n        case \"blob\":\n            if (data instanceof Blob) {\n                // from WebSocket + binaryType \"blob\"\n                return data;\n            }\n            else {\n                // from HTTP long-polling or WebTransport\n                return new Blob([data]);\n            }\n        case \"arraybuffer\":\n        default:\n            if (data instanceof ArrayBuffer) {\n                // from HTTP long-polling (base64) or WebSocket + binaryType \"arraybuffer\"\n                return data;\n            }\n            else {\n                // from WebTransport (Uint8Array)\n                return data.buffer;\n            }\n    }\n};\n", "import { encodePacket, encodePacketToBinary } from \"./encodePacket.js\";\nimport { decodePacket } from \"./decodePacket.js\";\nimport { ERROR_PACKET } from \"./commons.js\";\nconst SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text\nconst encodePayload = (packets, callback) => {\n    // some packets may be added to the array while encoding, so the initial length must be saved\n    const length = packets.length;\n    const encodedPackets = new Array(length);\n    let count = 0;\n    packets.forEach((packet, i) => {\n        // force base64 encoding for binary packets\n        encodePacket(packet, false, encodedPacket => {\n            encodedPackets[i] = encodedPacket;\n            if (++count === length) {\n                callback(encodedPackets.join(SEPARATOR));\n            }\n        });\n    });\n};\nconst decodePayload = (encodedPayload, binaryType) => {\n    const encodedPackets = encodedPayload.split(SEPARATOR);\n    const packets = [];\n    for (let i = 0; i < encodedPackets.length; i++) {\n        const decodedPacket = decodePacket(encodedPackets[i], binaryType);\n        packets.push(decodedPacket);\n        if (decodedPacket.type === \"error\") {\n            break;\n        }\n    }\n    return packets;\n};\nexport function createPacketEncoderStream() {\n    return new TransformStream({\n        transform(packet, controller) {\n            encodePacketToBinary(packet, encodedPacket => {\n                const payloadLength = encodedPacket.length;\n                let header;\n                // inspired by the WebSocket format: https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API/Writing_WebSocket_servers#decoding_payload_length\n                if (payloadLength < 126) {\n                    header = new Uint8Array(1);\n                    new DataView(header.buffer).setUint8(0, payloadLength);\n                }\n                else if (payloadLength < 65536) {\n                    header = new Uint8Array(3);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 126);\n                    view.setUint16(1, payloadLength);\n                }\n                else {\n                    header = new Uint8Array(9);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 127);\n                    view.setBigUint64(1, BigInt(payloadLength));\n                }\n                // first bit indicates whether the payload is plain text (0) or binary (1)\n                if (packet.data && typeof packet.data !== \"string\") {\n                    header[0] |= 0x80;\n                }\n                controller.enqueue(header);\n                controller.enqueue(encodedPacket);\n            });\n        }\n    });\n}\nlet TEXT_DECODER;\nfunction totalLength(chunks) {\n    return chunks.reduce((acc, chunk) => acc + chunk.length, 0);\n}\nfunction concatChunks(chunks, size) {\n    if (chunks[0].length === size) {\n        return chunks.shift();\n    }\n    const buffer = new Uint8Array(size);\n    let j = 0;\n    for (let i = 0; i < size; i++) {\n        buffer[i] = chunks[0][j++];\n        if (j === chunks[0].length) {\n            chunks.shift();\n            j = 0;\n        }\n    }\n    if (chunks.length && j < chunks[0].length) {\n        chunks[0] = chunks[0].slice(j);\n    }\n    return buffer;\n}\nexport function createPacketDecoderStream(maxPayload, binaryType) {\n    if (!TEXT_DECODER) {\n        TEXT_DECODER = new TextDecoder();\n    }\n    const chunks = [];\n    let state = 0 /* READ_HEADER */;\n    let expectedLength = -1;\n    let isBinary = false;\n    return new TransformStream({\n        transform(chunk, controller) {\n            chunks.push(chunk);\n            while (true) {\n                if (state === 0 /* READ_HEADER */) {\n                    if (totalLength(chunks) < 1) {\n                        break;\n                    }\n                    const header = concatChunks(chunks, 1);\n                    isBinary = (header[0] & 0x80) === 0x80;\n                    expectedLength = header[0] & 0x7f;\n                    if (expectedLength < 126) {\n                        state = 3 /* READ_PAYLOAD */;\n                    }\n                    else if (expectedLength === 126) {\n                        state = 1 /* READ_EXTENDED_LENGTH_16 */;\n                    }\n                    else {\n                        state = 2 /* READ_EXTENDED_LENGTH_64 */;\n                    }\n                }\n                else if (state === 1 /* READ_EXTENDED_LENGTH_16 */) {\n                    if (totalLength(chunks) < 2) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 2);\n                    expectedLength = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length).getUint16(0);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else if (state === 2 /* READ_EXTENDED_LENGTH_64 */) {\n                    if (totalLength(chunks) < 8) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 8);\n                    const view = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length);\n                    const n = view.getUint32(0);\n                    if (n > Math.pow(2, 53 - 32) - 1) {\n                        // the maximum safe integer in JavaScript is 2^53 - 1\n                        controller.enqueue(ERROR_PACKET);\n                        break;\n                    }\n                    expectedLength = n * Math.pow(2, 32) + view.getUint32(4);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else {\n                    if (totalLength(chunks) < expectedLength) {\n                        break;\n                    }\n                    const data = concatChunks(chunks, expectedLength);\n                    controller.enqueue(decodePacket(isBinary ? data : TEXT_DECODER.decode(data), binaryType));\n                    state = 0 /* READ_HEADER */;\n                }\n                if (expectedLength === 0 || expectedLength > maxPayload) {\n                    controller.enqueue(ERROR_PACKET);\n                    break;\n                }\n            }\n        }\n    });\n}\nexport const protocol = 4;\nexport { encodePacket, encodePayload, decodePacket, decodePayload };\n", "/**\n * Initialize a new `Emitter`.\n *\n * @api public\n */\n\nexport function Emitter(obj) {\n  if (obj) return mixin(obj);\n}\n\n/**\n * Mixin the emitter properties.\n *\n * @param {Object} obj\n * @return {Object}\n * @api private\n */\n\nfunction mixin(obj) {\n  for (var key in Emitter.prototype) {\n    obj[key] = Emitter.prototype[key];\n  }\n  return obj;\n}\n\n/**\n * Listen on the given `event` with `fn`.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.on =\nEmitter.prototype.addEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])\n    .push(fn);\n  return this;\n};\n\n/**\n * Adds an `event` listener that will be invoked a single\n * time then automatically removed.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.once = function(event, fn){\n  function on() {\n    this.off(event, on);\n    fn.apply(this, arguments);\n  }\n\n  on.fn = fn;\n  this.on(event, on);\n  return this;\n};\n\n/**\n * Remove the given callback for `event` or all\n * registered callbacks.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.off =\nEmitter.prototype.removeListener =\nEmitter.prototype.removeAllListeners =\nEmitter.prototype.removeEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n\n  // all\n  if (0 == arguments.length) {\n    this._callbacks = {};\n    return this;\n  }\n\n  // specific event\n  var callbacks = this._callbacks['$' + event];\n  if (!callbacks) return this;\n\n  // remove all handlers\n  if (1 == arguments.length) {\n    delete this._callbacks['$' + event];\n    return this;\n  }\n\n  // remove specific handler\n  var cb;\n  for (var i = 0; i < callbacks.length; i++) {\n    cb = callbacks[i];\n    if (cb === fn || cb.fn === fn) {\n      callbacks.splice(i, 1);\n      break;\n    }\n  }\n\n  // Remove event specific arrays for event types that no\n  // one is subscribed for to avoid memory leak.\n  if (callbacks.length === 0) {\n    delete this._callbacks['$' + event];\n  }\n\n  return this;\n};\n\n/**\n * Emit `event` with the given args.\n *\n * @param {String} event\n * @param {Mixed} ...\n * @return {Emitter}\n */\n\nEmitter.prototype.emit = function(event){\n  this._callbacks = this._callbacks || {};\n\n  var args = new Array(arguments.length - 1)\n    , callbacks = this._callbacks['$' + event];\n\n  for (var i = 1; i < arguments.length; i++) {\n    args[i - 1] = arguments[i];\n  }\n\n  if (callbacks) {\n    callbacks = callbacks.slice(0);\n    for (var i = 0, len = callbacks.length; i < len; ++i) {\n      callbacks[i].apply(this, args);\n    }\n  }\n\n  return this;\n};\n\n// alias used for reserved events (protected method)\nEmitter.prototype.emitReserved = Emitter.prototype.emit;\n\n/**\n * Return array of callbacks for `event`.\n *\n * @param {String} event\n * @return {Array}\n * @api public\n */\n\nEmitter.prototype.listeners = function(event){\n  this._callbacks = this._callbacks || {};\n  return this._callbacks['$' + event] || [];\n};\n\n/**\n * Check if this emitter has `event` handlers.\n *\n * @param {String} event\n * @return {Boolean}\n * @api public\n */\n\nEmitter.prototype.hasListeners = function(event){\n  return !! this.listeners(event).length;\n};\n", "export const globalThisShim = (() => {\n    if (typeof self !== \"undefined\") {\n        return self;\n    }\n    else if (typeof window !== \"undefined\") {\n        return window;\n    }\n    else {\n        return Function(\"return this\")();\n    }\n})();\n", "import { globalThisShim as globalThis } from \"./globalThis.js\";\nexport function pick(obj, ...attr) {\n    return attr.reduce((acc, k) => {\n        if (obj.hasOwnProperty(k)) {\n            acc[k] = obj[k];\n        }\n        return acc;\n    }, {});\n}\n// Keep a reference to the real timeout functions so they can be used when overridden\nconst NATIVE_SET_TIMEOUT = globalThis.setTimeout;\nconst NATIVE_CLEAR_TIMEOUT = globalThis.clearTimeout;\nexport function installTimerFunctions(obj, opts) {\n    if (opts.useNativeTimers) {\n        obj.setTimeoutFn = NATIVE_SET_TIMEOUT.bind(globalThis);\n        obj.clearTimeoutFn = NATIVE_CLEAR_TIMEOUT.bind(globalThis);\n    }\n    else {\n        obj.setTimeoutFn = globalThis.setTimeout.bind(globalThis);\n        obj.clearTimeoutFn = globalThis.clearTimeout.bind(globalThis);\n    }\n}\n// base64 encoded buffers are about 33% bigger (https://en.wikipedia.org/wiki/Base64)\nconst BASE64_OVERHEAD = 1.33;\n// we could also have used `new Blob([obj]).size`, but it isn't supported in IE9\nexport function byteLength(obj) {\n    if (typeof obj === \"string\") {\n        return utf8Length(obj);\n    }\n    // arraybuffer or blob\n    return Math.ceil((obj.byteLength || obj.size) * BASE64_OVERHEAD);\n}\nfunction utf8Length(str) {\n    let c = 0, length = 0;\n    for (let i = 0, l = str.length; i < l; i++) {\n        c = str.charCodeAt(i);\n        if (c < 0x80) {\n            length += 1;\n        }\n        else if (c < 0x800) {\n            length += 2;\n        }\n        else if (c < 0xd800 || c >= 0xe000) {\n            length += 3;\n        }\n        else {\n            i++;\n            length += 4;\n        }\n    }\n    return length;\n}\n", "// imported from https://github.com/galkn/querystring\n/**\n * Compiles a querystring\n * Returns string representation of the object\n *\n * @param {Object}\n * @api private\n */\nexport function encode(obj) {\n    let str = '';\n    for (let i in obj) {\n        if (obj.hasOwnProperty(i)) {\n            if (str.length)\n                str += '&';\n            str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);\n        }\n    }\n    return str;\n}\n/**\n * Parses a simple querystring into an object\n *\n * @param {String} qs\n * @api private\n */\nexport function decode(qs) {\n    let qry = {};\n    let pairs = qs.split('&');\n    for (let i = 0, l = pairs.length; i < l; i++) {\n        let pair = pairs[i].split('=');\n        qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);\n    }\n    return qry;\n}\n", "import { decodePacket } from \"engine.io-parser\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions } from \"./util.js\";\nimport { encode } from \"./contrib/parseqs.js\";\nexport class TransportError extends Error {\n    constructor(reason, description, context) {\n        super(reason);\n        this.description = description;\n        this.context = context;\n        this.type = \"TransportError\";\n    }\n}\nexport class Transport extends Emitter {\n    /**\n     * Transport abstract constructor.\n     *\n     * @param {Object} opts - options\n     * @protected\n     */\n    constructor(opts) {\n        super();\n        this.writable = false;\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.query = opts.query;\n        this.socket = opts.socket;\n    }\n    /**\n     * Emits an error.\n     *\n     * @param {String} reason\n     * @param description\n     * @param context - the error context\n     * @return {Transport} for chaining\n     * @protected\n     */\n    onError(reason, description, context) {\n        super.emitReserved(\"error\", new TransportError(reason, description, context));\n        return this;\n    }\n    /**\n     * Opens the transport.\n     */\n    open() {\n        this.readyState = \"opening\";\n        this.doOpen();\n        return this;\n    }\n    /**\n     * Closes the transport.\n     */\n    close() {\n        if (this.readyState === \"opening\" || this.readyState === \"open\") {\n            this.doClose();\n            this.onClose();\n        }\n        return this;\n    }\n    /**\n     * Sends multiple packets.\n     *\n     * @param {Array} packets\n     */\n    send(packets) {\n        if (this.readyState === \"open\") {\n            this.write(packets);\n        }\n        else {\n            // this might happen if the transport was silently closed in the beforeunload event handler\n        }\n    }\n    /**\n     * Called upon open\n     *\n     * @protected\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        this.writable = true;\n        super.emitReserved(\"open\");\n    }\n    /**\n     * Called with data.\n     *\n     * @param {String} data\n     * @protected\n     */\n    onData(data) {\n        const packet = decodePacket(data, this.socket.binaryType);\n        this.onPacket(packet);\n    }\n    /**\n     * Called with a decoded packet.\n     *\n     * @protected\n     */\n    onPacket(packet) {\n        super.emitReserved(\"packet\", packet);\n    }\n    /**\n     * Called upon close.\n     *\n     * @protected\n     */\n    onClose(details) {\n        this.readyState = \"closed\";\n        super.emitReserved(\"close\", details);\n    }\n    /**\n     * Pauses the transport, in order not to lose packets during an upgrade.\n     *\n     * @param onPause\n     */\n    pause(onPause) { }\n    createUri(schema, query = {}) {\n        return (schema +\n            \"://\" +\n            this._hostname() +\n            this._port() +\n            this.opts.path +\n            this._query(query));\n    }\n    _hostname() {\n        const hostname = this.opts.hostname;\n        return hostname.indexOf(\":\") === -1 ? hostname : \"[\" + hostname + \"]\";\n    }\n    _port() {\n        if (this.opts.port &&\n            ((this.opts.secure && Number(this.opts.port !== 443)) ||\n                (!this.opts.secure && Number(this.opts.port) !== 80))) {\n            return \":\" + this.opts.port;\n        }\n        else {\n            return \"\";\n        }\n    }\n    _query(query) {\n        const encodedQuery = encode(query);\n        return encodedQuery.length ? \"?\" + encodedQuery : \"\";\n    }\n}\n", "// imported from https://github.com/unshiftio/yeast\n'use strict';\nconst alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split(''), length = 64, map = {};\nlet seed = 0, i = 0, prev;\n/**\n * Return a string representing the specified number.\n *\n * @param {Number} num The number to convert.\n * @returns {String} The string representation of the number.\n * @api public\n */\nexport function encode(num) {\n    let encoded = '';\n    do {\n        encoded = alphabet[num % length] + encoded;\n        num = Math.floor(num / length);\n    } while (num > 0);\n    return encoded;\n}\n/**\n * Return the integer value specified by the given string.\n *\n * @param {String} str The string to convert.\n * @returns {Number} The integer value represented by the string.\n * @api public\n */\nexport function decode(str) {\n    let decoded = 0;\n    for (i = 0; i < str.length; i++) {\n        decoded = decoded * length + map[str.charAt(i)];\n    }\n    return decoded;\n}\n/**\n * Yeast: A tiny growing id generator.\n *\n * @returns {String} A unique id.\n * @api public\n */\nexport function yeast() {\n    const now = encode(+new Date());\n    if (now !== prev)\n        return seed = 0, prev = now;\n    return now + '.' + encode(seed++);\n}\n//\n// Map each character to its index.\n//\nfor (; i < length; i++)\n    map[alphabet[i]] = i;\n", "// imported from https://github.com/component/has-cors\nlet value = false;\ntry {\n    value = typeof XMLHttpRequest !== 'undefined' &&\n        'withCredentials' in new XMLHttpRequest();\n}\ncatch (err) {\n    // if XMLHttp support is disabled in IE then it will throw\n    // when trying to create\n}\nexport const hasCORS = value;\n", "// browser shim for xmlhttprequest module\nimport { hasCORS } from \"../contrib/has-cors.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nexport function XHR(opts) {\n    const xdomain = opts.xdomain;\n    // XMLHttpRequest can be disabled on IE\n    try {\n        if (\"undefined\" !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {\n            return new XMLHttpRequest();\n        }\n    }\n    catch (e) { }\n    if (!xdomain) {\n        try {\n            return new globalThis[[\"Active\"].concat(\"Object\").join(\"X\")](\"Microsoft.XMLHTTP\");\n        }\n        catch (e) { }\n    }\n}\nexport function createCookieJar() { }\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { encodePayload, decodePayload } from \"engine.io-parser\";\nimport { createCookieJar, XHR as XMLHttpRequest, } from \"./xmlhttprequest.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions, pick } from \"../util.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nfunction empty() { }\nconst hasXHR2 = (function () {\n    const xhr = new XMLHttpRequest({\n        xdomain: false,\n    });\n    return null != xhr.responseType;\n})();\nexport class Polling extends Transport {\n    /**\n     * XHR Polling constructor.\n     *\n     * @param {Object} opts\n     * @package\n     */\n    constructor(opts) {\n        super(opts);\n        this.polling = false;\n        if (typeof location !== \"undefined\") {\n            const isSSL = \"https:\" === location.protocol;\n            let port = location.port;\n            // some user agents have empty `location.port`\n            if (!port) {\n                port = isSSL ? \"443\" : \"80\";\n            }\n            this.xd =\n                (typeof location !== \"undefined\" &&\n                    opts.hostname !== location.hostname) ||\n                    port !== opts.port;\n        }\n        /**\n         * XHR supports binary\n         */\n        const forceBase64 = opts && opts.forceBase64;\n        this.supportsBinary = hasXHR2 && !forceBase64;\n        if (this.opts.withCredentials) {\n            this.cookieJar = createCookieJar();\n        }\n    }\n    get name() {\n        return \"polling\";\n    }\n    /**\n     * Opens the socket (triggers polling). We write a PING message to determine\n     * when the transport is open.\n     *\n     * @protected\n     */\n    doOpen() {\n        this.poll();\n    }\n    /**\n     * Pauses polling.\n     *\n     * @param {Function} onPause - callback upon buffers are flushed and transport is paused\n     * @package\n     */\n    pause(onPause) {\n        this.readyState = \"pausing\";\n        const pause = () => {\n            this.readyState = \"paused\";\n            onPause();\n        };\n        if (this.polling || !this.writable) {\n            let total = 0;\n            if (this.polling) {\n                total++;\n                this.once(\"pollComplete\", function () {\n                    --total || pause();\n                });\n            }\n            if (!this.writable) {\n                total++;\n                this.once(\"drain\", function () {\n                    --total || pause();\n                });\n            }\n        }\n        else {\n            pause();\n        }\n    }\n    /**\n     * Starts polling cycle.\n     *\n     * @private\n     */\n    poll() {\n        this.polling = true;\n        this.doPoll();\n        this.emitReserved(\"poll\");\n    }\n    /**\n     * Overloads onData to detect payloads.\n     *\n     * @protected\n     */\n    onData(data) {\n        const callback = (packet) => {\n            // if its the first message we consider the transport open\n            if (\"opening\" === this.readyState && packet.type === \"open\") {\n                this.onOpen();\n            }\n            // if its a close packet, we close the ongoing requests\n            if (\"close\" === packet.type) {\n                this.onClose({ description: \"transport closed by the server\" });\n                return false;\n            }\n            // otherwise bypass onData and handle the message\n            this.onPacket(packet);\n        };\n        // decode payload\n        decodePayload(data, this.socket.binaryType).forEach(callback);\n        // if an event did not trigger closing\n        if (\"closed\" !== this.readyState) {\n            // if we got data we're not polling\n            this.polling = false;\n            this.emitReserved(\"pollComplete\");\n            if (\"open\" === this.readyState) {\n                this.poll();\n            }\n            else {\n            }\n        }\n    }\n    /**\n     * For polling, send a close packet.\n     *\n     * @protected\n     */\n    doClose() {\n        const close = () => {\n            this.write([{ type: \"close\" }]);\n        };\n        if (\"open\" === this.readyState) {\n            close();\n        }\n        else {\n            // in case we're trying to close while\n            // handshaking is in progress (GH-164)\n            this.once(\"open\", close);\n        }\n    }\n    /**\n     * Writes a packets payload.\n     *\n     * @param {Array} packets - data packets\n     * @protected\n     */\n    write(packets) {\n        this.writable = false;\n        encodePayload(packets, (data) => {\n            this.doWrite(data, () => {\n                this.writable = true;\n                this.emitReserved(\"drain\");\n            });\n        });\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"https\" : \"http\";\n        const query = this.query || {};\n        // cache busting is forced\n        if (false !== this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        if (!this.supportsBinary && !query.sid) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Creates a request.\n     *\n     * @param {String} method\n     * @private\n     */\n    request(opts = {}) {\n        Object.assign(opts, { xd: this.xd, cookieJar: this.cookieJar }, this.opts);\n        return new Request(this.uri(), opts);\n    }\n    /**\n     * Sends data.\n     *\n     * @param {String} data to send.\n     * @param {Function} called upon flush.\n     * @private\n     */\n    doWrite(data, fn) {\n        const req = this.request({\n            method: \"POST\",\n            data: data,\n        });\n        req.on(\"success\", fn);\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr post error\", xhrStatus, context);\n        });\n    }\n    /**\n     * Starts a poll cycle.\n     *\n     * @private\n     */\n    doPoll() {\n        const req = this.request();\n        req.on(\"data\", this.onData.bind(this));\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr poll error\", xhrStatus, context);\n        });\n        this.pollXhr = req;\n    }\n}\nexport class Request extends Emitter {\n    /**\n     * Request constructor\n     *\n     * @param {Object} options\n     * @package\n     */\n    constructor(uri, opts) {\n        super();\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.method = opts.method || \"GET\";\n        this.uri = uri;\n        this.data = undefined !== opts.data ? opts.data : null;\n        this.create();\n    }\n    /**\n     * Creates the XHR object and sends the request.\n     *\n     * @private\n     */\n    create() {\n        var _a;\n        const opts = pick(this.opts, \"agent\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"autoUnref\");\n        opts.xdomain = !!this.opts.xd;\n        const xhr = (this.xhr = new XMLHttpRequest(opts));\n        try {\n            xhr.open(this.method, this.uri, true);\n            try {\n                if (this.opts.extraHeaders) {\n                    xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);\n                    for (let i in this.opts.extraHeaders) {\n                        if (this.opts.extraHeaders.hasOwnProperty(i)) {\n                            xhr.setRequestHeader(i, this.opts.extraHeaders[i]);\n                        }\n                    }\n                }\n            }\n            catch (e) { }\n            if (\"POST\" === this.method) {\n                try {\n                    xhr.setRequestHeader(\"Content-type\", \"text/plain;charset=UTF-8\");\n                }\n                catch (e) { }\n            }\n            try {\n                xhr.setRequestHeader(\"Accept\", \"*/*\");\n            }\n            catch (e) { }\n            (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.addCookies(xhr);\n            // ie6 check\n            if (\"withCredentials\" in xhr) {\n                xhr.withCredentials = this.opts.withCredentials;\n            }\n            if (this.opts.requestTimeout) {\n                xhr.timeout = this.opts.requestTimeout;\n            }\n            xhr.onreadystatechange = () => {\n                var _a;\n                if (xhr.readyState === 3) {\n                    (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.parseCookies(xhr);\n                }\n                if (4 !== xhr.readyState)\n                    return;\n                if (200 === xhr.status || 1223 === xhr.status) {\n                    this.onLoad();\n                }\n                else {\n                    // make sure the `error` event handler that's user-set\n                    // does not throw in the same tick and gets caught here\n                    this.setTimeoutFn(() => {\n                        this.onError(typeof xhr.status === \"number\" ? xhr.status : 0);\n                    }, 0);\n                }\n            };\n            xhr.send(this.data);\n        }\n        catch (e) {\n            // Need to defer since .create() is called directly from the constructor\n            // and thus the 'error' event can only be only bound *after* this exception\n            // occurs.  Therefore, also, we cannot throw here at all.\n            this.setTimeoutFn(() => {\n                this.onError(e);\n            }, 0);\n            return;\n        }\n        if (typeof document !== \"undefined\") {\n            this.index = Request.requestsCount++;\n            Request.requests[this.index] = this;\n        }\n    }\n    /**\n     * Called upon error.\n     *\n     * @private\n     */\n    onError(err) {\n        this.emitReserved(\"error\", err, this.xhr);\n        this.cleanup(true);\n    }\n    /**\n     * Cleans up house.\n     *\n     * @private\n     */\n    cleanup(fromError) {\n        if (\"undefined\" === typeof this.xhr || null === this.xhr) {\n            return;\n        }\n        this.xhr.onreadystatechange = empty;\n        if (fromError) {\n            try {\n                this.xhr.abort();\n            }\n            catch (e) { }\n        }\n        if (typeof document !== \"undefined\") {\n            delete Request.requests[this.index];\n        }\n        this.xhr = null;\n    }\n    /**\n     * Called upon load.\n     *\n     * @private\n     */\n    onLoad() {\n        const data = this.xhr.responseText;\n        if (data !== null) {\n            this.emitReserved(\"data\", data);\n            this.emitReserved(\"success\");\n            this.cleanup();\n        }\n    }\n    /**\n     * Aborts the request.\n     *\n     * @package\n     */\n    abort() {\n        this.cleanup();\n    }\n}\nRequest.requestsCount = 0;\nRequest.requests = {};\n/**\n * Aborts pending requests when unloading the window. This is needed to prevent\n * memory leaks (e.g. when using IE) and to ensure that no spurious error is\n * emitted.\n */\nif (typeof document !== \"undefined\") {\n    // @ts-ignore\n    if (typeof attachEvent === \"function\") {\n        // @ts-ignore\n        attachEvent(\"onunload\", unloadHandler);\n    }\n    else if (typeof addEventListener === \"function\") {\n        const terminationEvent = \"onpagehide\" in globalThis ? \"pagehide\" : \"unload\";\n        addEventListener(terminationEvent, unloadHandler, false);\n    }\n}\nfunction unloadHandler() {\n    for (let i in Request.requests) {\n        if (Request.requests.hasOwnProperty(i)) {\n            Request.requests[i].abort();\n        }\n    }\n}\n", "import { globalThisShim as globalThis } from \"../globalThis.js\";\nexport const nextTick = (() => {\n    const isPromiseAvailable = typeof Promise === \"function\" && typeof Promise.resolve === \"function\";\n    if (isPromiseAvailable) {\n        return (cb) => Promise.resolve().then(cb);\n    }\n    else {\n        return (cb, setTimeoutFn) => setTimeoutFn(cb, 0);\n    }\n})();\nexport const WebSocket = globalThis.WebSocket || globalThis.MozWebSocket;\nexport const usingBrowserWebSocket = true;\nexport const defaultBinaryType = \"arraybuffer\";\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { pick } from \"../util.js\";\nimport { nextTick, usingBrowserWebSocket, WebSocket, } from \"./websocket-constructor.js\";\nimport { encodePacket } from \"engine.io-parser\";\n// detect ReactNative environment\nconst isReactNative = typeof navigator !== \"undefined\" &&\n    typeof navigator.product === \"string\" &&\n    navigator.product.toLowerCase() === \"reactnative\";\nexport class WS extends Transport {\n    /**\n     * WebSocket transport constructor.\n     *\n     * @param {Object} opts - connection options\n     * @protected\n     */\n    constructor(opts) {\n        super(opts);\n        this.supportsBinary = !opts.forceBase64;\n    }\n    get name() {\n        return \"websocket\";\n    }\n    doOpen() {\n        if (!this.check()) {\n            // let probe timeout\n            return;\n        }\n        const uri = this.uri();\n        const protocols = this.opts.protocols;\n        // React Native only supports the 'headers' option, and will print a warning if anything else is passed\n        const opts = isReactNative\n            ? {}\n            : pick(this.opts, \"agent\", \"perMessageDeflate\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"localAddress\", \"protocolVersion\", \"origin\", \"maxPayload\", \"family\", \"checkServerIdentity\");\n        if (this.opts.extraHeaders) {\n            opts.headers = this.opts.extraHeaders;\n        }\n        try {\n            this.ws =\n                usingBrowserWebSocket && !isReactNative\n                    ? protocols\n                        ? new WebSocket(uri, protocols)\n                        : new WebSocket(uri)\n                    : new WebSocket(uri, protocols, opts);\n        }\n        catch (err) {\n            return this.emitReserved(\"error\", err);\n        }\n        this.ws.binaryType = this.socket.binaryType;\n        this.addEventListeners();\n    }\n    /**\n     * Adds event listeners to the socket\n     *\n     * @private\n     */\n    addEventListeners() {\n        this.ws.onopen = () => {\n            if (this.opts.autoUnref) {\n                this.ws._socket.unref();\n            }\n            this.onOpen();\n        };\n        this.ws.onclose = (closeEvent) => this.onClose({\n            description: \"websocket connection closed\",\n            context: closeEvent,\n        });\n        this.ws.onmessage = (ev) => this.onData(ev.data);\n        this.ws.onerror = (e) => this.onError(\"websocket error\", e);\n    }\n    write(packets) {\n        this.writable = false;\n        // encodePacket efficient as it uses WS framing\n        // no need for encodePayload\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            encodePacket(packet, this.supportsBinary, (data) => {\n                // always create a new object (GH-437)\n                const opts = {};\n                if (!usingBrowserWebSocket) {\n                    if (packet.options) {\n                        opts.compress = packet.options.compress;\n                    }\n                    if (this.opts.perMessageDeflate) {\n                        const len = \n                        // @ts-ignore\n                        \"string\" === typeof data ? Buffer.byteLength(data) : data.length;\n                        if (len < this.opts.perMessageDeflate.threshold) {\n                            opts.compress = false;\n                        }\n                    }\n                }\n                // Sometimes the websocket has already been closed but the browser didn't\n                // have a chance of informing us about it yet, in that case send will\n                // throw an error\n                try {\n                    if (usingBrowserWebSocket) {\n                        // TypeError is thrown when passing the second argument on Safari\n                        this.ws.send(data);\n                    }\n                    else {\n                        this.ws.send(data, opts);\n                    }\n                }\n                catch (e) {\n                }\n                if (lastPacket) {\n                    // fake drain\n                    // defer to next tick to allow Socket to clear writeBuffer\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        if (typeof this.ws !== \"undefined\") {\n            this.ws.close();\n            this.ws = null;\n        }\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"wss\" : \"ws\";\n        const query = this.query || {};\n        // append timestamp to URI\n        if (this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        // communicate binary support capabilities\n        if (!this.supportsBinary) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Feature detection for WebSocket.\n     *\n     * @return {Boolean} whether this transport is available.\n     * @private\n     */\n    check() {\n        return !!WebSocket;\n    }\n}\n", "import { Transport } from \"../transport.js\";\nimport { nextTick } from \"./websocket-constructor.js\";\nimport { createPacketDecoderStream, createPacketEncoderStream, } from \"engine.io-parser\";\nexport class WT extends Transport {\n    get name() {\n        return \"webtransport\";\n    }\n    doOpen() {\n        // @ts-ignore\n        if (typeof WebTransport !== \"function\") {\n            return;\n        }\n        // @ts-ignore\n        this.transport = new WebTransport(this.createUri(\"https\"), this.opts.transportOptions[this.name]);\n        this.transport.closed\n            .then(() => {\n            this.onClose();\n        })\n            .catch((err) => {\n            this.onError(\"webtransport error\", err);\n        });\n        // note: we could have used async/await, but that would require some additional polyfills\n        this.transport.ready.then(() => {\n            this.transport.createBidirectionalStream().then((stream) => {\n                const decoderStream = createPacketDecoderStream(Number.MAX_SAFE_INTEGER, this.socket.binaryType);\n                const reader = stream.readable.pipeThrough(decoderStream).getReader();\n                const encoderStream = createPacketEncoderStream();\n                encoderStream.readable.pipeTo(stream.writable);\n                this.writer = encoderStream.writable.getWriter();\n                const read = () => {\n                    reader\n                        .read()\n                        .then(({ done, value }) => {\n                        if (done) {\n                            return;\n                        }\n                        this.onPacket(value);\n                        read();\n                    })\n                        .catch((err) => {\n                    });\n                };\n                read();\n                const packet = { type: \"open\" };\n                if (this.query.sid) {\n                    packet.data = `{\"sid\":\"${this.query.sid}\"}`;\n                }\n                this.writer.write(packet).then(() => this.onOpen());\n            });\n        });\n    }\n    write(packets) {\n        this.writable = false;\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            this.writer.write(packet).then(() => {\n                if (lastPacket) {\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        var _a;\n        (_a = this.transport) === null || _a === void 0 ? void 0 : _a.close();\n    }\n}\n", "import { Polling } from \"./polling.js\";\nimport { WS } from \"./websocket.js\";\nimport { WT } from \"./webtransport.js\";\nexport const transports = {\n    websocket: WS,\n    webtransport: WT,\n    polling: Polling,\n};\n", "// imported from https://github.com/galkn/parseuri\n/**\n * Parses a URI\n *\n * Note: we could also have used the built-in URL object, but it isn't supported on all platforms.\n *\n * See:\n * - https://developer.mozilla.org/en-US/docs/Web/API/URL\n * - https://caniuse.com/url\n * - https://www.rfc-editor.org/rfc/rfc3986#appendix-B\n *\n * History of the parse() method:\n * - first commit: https://github.com/socketio/socket.io-client/commit/4ee1d5d94b3906a9c052b459f1a818b15f38f91c\n * - export into its own module: https://github.com/socketio/engine.io-client/commit/de2c561e4564efeb78f1bdb1ba39ef81b2822cb3\n * - reimport: https://github.com/socketio/engine.io-client/commit/df32277c3f6d622eec5ed09f493cae3f3391d242\n *\n * @author Steven Levithan <stevenlevithan.com> (MIT license)\n * @api private\n */\nconst re = /^(?:(?![^:@\\/?#]+:[^:@\\/]*@)(http|https|ws|wss):\\/\\/)?((?:(([^:@\\/?#]*)(?::([^:@\\/?#]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\\/?#]*)(?::(\\d*))?)(((\\/(?:[^?#](?![^?#\\/]*\\.[^?#\\/.]+(?:[?#]|$)))*\\/?)?([^?#\\/]*))(?:\\?([^#]*))?(?:#(.*))?)/;\nconst parts = [\n    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'\n];\nexport function parse(str) {\n    if (str.length > 2000) {\n        throw \"URI too long\";\n    }\n    const src = str, b = str.indexOf('['), e = str.indexOf(']');\n    if (b != -1 && e != -1) {\n        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);\n    }\n    let m = re.exec(str || ''), uri = {}, i = 14;\n    while (i--) {\n        uri[parts[i]] = m[i] || '';\n    }\n    if (b != -1 && e != -1) {\n        uri.source = src;\n        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');\n        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');\n        uri.ipv6uri = true;\n    }\n    uri.pathNames = pathNames(uri, uri['path']);\n    uri.queryKey = queryKey(uri, uri['query']);\n    return uri;\n}\nfunction pathNames(obj, path) {\n    const regx = /\\/{2,9}/g, names = path.replace(regx, \"/\").split(\"/\");\n    if (path.slice(0, 1) == '/' || path.length === 0) {\n        names.splice(0, 1);\n    }\n    if (path.slice(-1) == '/') {\n        names.splice(names.length - 1, 1);\n    }\n    return names;\n}\nfunction queryKey(uri, query) {\n    const data = {};\n    query.replace(/(?:^|&)([^&=]*)=?([^&]*)/g, function ($0, $1, $2) {\n        if ($1) {\n            data[$1] = $2;\n        }\n    });\n    return data;\n}\n", "import { transports } from \"./transports/index.js\";\nimport { installTimerFunctions, byteLength } from \"./util.js\";\nimport { decode } from \"./contrib/parseqs.js\";\nimport { parse } from \"./contrib/parseuri.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { protocol } from \"engine.io-parser\";\nimport { defaultBinaryType } from \"./transports/websocket-constructor.js\";\nexport class Socket extends Emitter {\n    /**\n     * Socket constructor.\n     *\n     * @param {String|Object} uri - uri or options\n     * @param {Object} opts - options\n     */\n    constructor(uri, opts = {}) {\n        super();\n        this.binaryType = defaultBinaryType;\n        this.writeBuffer = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = null;\n        }\n        if (uri) {\n            uri = parse(uri);\n            opts.hostname = uri.host;\n            opts.secure = uri.protocol === \"https\" || uri.protocol === \"wss\";\n            opts.port = uri.port;\n            if (uri.query)\n                opts.query = uri.query;\n        }\n        else if (opts.host) {\n            opts.hostname = parse(opts.host).host;\n        }\n        installTimerFunctions(this, opts);\n        this.secure =\n            null != opts.secure\n                ? opts.secure\n                : typeof location !== \"undefined\" && \"https:\" === location.protocol;\n        if (opts.hostname && !opts.port) {\n            // if no port is specified manually, use the protocol default\n            opts.port = this.secure ? \"443\" : \"80\";\n        }\n        this.hostname =\n            opts.hostname ||\n                (typeof location !== \"undefined\" ? location.hostname : \"localhost\");\n        this.port =\n            opts.port ||\n                (typeof location !== \"undefined\" && location.port\n                    ? location.port\n                    : this.secure\n                        ? \"443\"\n                        : \"80\");\n        this.transports = opts.transports || [\n            \"polling\",\n            \"websocket\",\n            \"webtransport\",\n        ];\n        this.writeBuffer = [];\n        this.prevBufferLen = 0;\n        this.opts = Object.assign({\n            path: \"/engine.io\",\n            agent: false,\n            withCredentials: false,\n            upgrade: true,\n            timestampParam: \"t\",\n            rememberUpgrade: false,\n            addTrailingSlash: true,\n            rejectUnauthorized: true,\n            perMessageDeflate: {\n                threshold: 1024,\n            },\n            transportOptions: {},\n            closeOnBeforeunload: false,\n        }, opts);\n        this.opts.path =\n            this.opts.path.replace(/\\/$/, \"\") +\n                (this.opts.addTrailingSlash ? \"/\" : \"\");\n        if (typeof this.opts.query === \"string\") {\n            this.opts.query = decode(this.opts.query);\n        }\n        // set on handshake\n        this.id = null;\n        this.upgrades = null;\n        this.pingInterval = null;\n        this.pingTimeout = null;\n        // set on heartbeat\n        this.pingTimeoutTimer = null;\n        if (typeof addEventListener === \"function\") {\n            if (this.opts.closeOnBeforeunload) {\n                // Firefox closes the connection when the \"beforeunload\" event is emitted but not Chrome. This event listener\n                // ensures every browser behaves the same (no \"disconnect\" event at the Socket.IO level when the page is\n                // closed/reloaded)\n                this.beforeunloadEventListener = () => {\n                    if (this.transport) {\n                        // silently close the transport\n                        this.transport.removeAllListeners();\n                        this.transport.close();\n                    }\n                };\n                addEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n            }\n            if (this.hostname !== \"localhost\") {\n                this.offlineEventListener = () => {\n                    this.onClose(\"transport close\", {\n                        description: \"network connection lost\",\n                    });\n                };\n                addEventListener(\"offline\", this.offlineEventListener, false);\n            }\n        }\n        this.open();\n    }\n    /**\n     * Creates transport of the given type.\n     *\n     * @param {String} name - transport name\n     * @return {Transport}\n     * @private\n     */\n    createTransport(name) {\n        const query = Object.assign({}, this.opts.query);\n        // append engine.io protocol identifier\n        query.EIO = protocol;\n        // transport name\n        query.transport = name;\n        // session id if we already have one\n        if (this.id)\n            query.sid = this.id;\n        const opts = Object.assign({}, this.opts, {\n            query,\n            socket: this,\n            hostname: this.hostname,\n            secure: this.secure,\n            port: this.port,\n        }, this.opts.transportOptions[name]);\n        return new transports[name](opts);\n    }\n    /**\n     * Initializes transport to use and starts probe.\n     *\n     * @private\n     */\n    open() {\n        let transport;\n        if (this.opts.rememberUpgrade &&\n            Socket.priorWebsocketSuccess &&\n            this.transports.indexOf(\"websocket\") !== -1) {\n            transport = \"websocket\";\n        }\n        else if (0 === this.transports.length) {\n            // Emit error on next tick so it can be listened to\n            this.setTimeoutFn(() => {\n                this.emitReserved(\"error\", \"No transports available\");\n            }, 0);\n            return;\n        }\n        else {\n            transport = this.transports[0];\n        }\n        this.readyState = \"opening\";\n        // Retry with the next transport if the transport is disabled (jsonp: false)\n        try {\n            transport = this.createTransport(transport);\n        }\n        catch (e) {\n            this.transports.shift();\n            this.open();\n            return;\n        }\n        transport.open();\n        this.setTransport(transport);\n    }\n    /**\n     * Sets the current transport. Disables the existing one (if any).\n     *\n     * @private\n     */\n    setTransport(transport) {\n        if (this.transport) {\n            this.transport.removeAllListeners();\n        }\n        // set up transport\n        this.transport = transport;\n        // set up transport listeners\n        transport\n            .on(\"drain\", this.onDrain.bind(this))\n            .on(\"packet\", this.onPacket.bind(this))\n            .on(\"error\", this.onError.bind(this))\n            .on(\"close\", (reason) => this.onClose(\"transport close\", reason));\n    }\n    /**\n     * Probes a transport.\n     *\n     * @param {String} name - transport name\n     * @private\n     */\n    probe(name) {\n        let transport = this.createTransport(name);\n        let failed = false;\n        Socket.priorWebsocketSuccess = false;\n        const onTransportOpen = () => {\n            if (failed)\n                return;\n            transport.send([{ type: \"ping\", data: \"probe\" }]);\n            transport.once(\"packet\", (msg) => {\n                if (failed)\n                    return;\n                if (\"pong\" === msg.type && \"probe\" === msg.data) {\n                    this.upgrading = true;\n                    this.emitReserved(\"upgrading\", transport);\n                    if (!transport)\n                        return;\n                    Socket.priorWebsocketSuccess = \"websocket\" === transport.name;\n                    this.transport.pause(() => {\n                        if (failed)\n                            return;\n                        if (\"closed\" === this.readyState)\n                            return;\n                        cleanup();\n                        this.setTransport(transport);\n                        transport.send([{ type: \"upgrade\" }]);\n                        this.emitReserved(\"upgrade\", transport);\n                        transport = null;\n                        this.upgrading = false;\n                        this.flush();\n                    });\n                }\n                else {\n                    const err = new Error(\"probe error\");\n                    // @ts-ignore\n                    err.transport = transport.name;\n                    this.emitReserved(\"upgradeError\", err);\n                }\n            });\n        };\n        function freezeTransport() {\n            if (failed)\n                return;\n            // Any callback called by transport should be ignored since now\n            failed = true;\n            cleanup();\n            transport.close();\n            transport = null;\n        }\n        // Handle any error that happens while probing\n        const onerror = (err) => {\n            const error = new Error(\"probe error: \" + err);\n            // @ts-ignore\n            error.transport = transport.name;\n            freezeTransport();\n            this.emitReserved(\"upgradeError\", error);\n        };\n        function onTransportClose() {\n            onerror(\"transport closed\");\n        }\n        // When the socket is closed while we're probing\n        function onclose() {\n            onerror(\"socket closed\");\n        }\n        // When the socket is upgraded while we're probing\n        function onupgrade(to) {\n            if (transport && to.name !== transport.name) {\n                freezeTransport();\n            }\n        }\n        // Remove all listeners on the transport and on self\n        const cleanup = () => {\n            transport.removeListener(\"open\", onTransportOpen);\n            transport.removeListener(\"error\", onerror);\n            transport.removeListener(\"close\", onTransportClose);\n            this.off(\"close\", onclose);\n            this.off(\"upgrading\", onupgrade);\n        };\n        transport.once(\"open\", onTransportOpen);\n        transport.once(\"error\", onerror);\n        transport.once(\"close\", onTransportClose);\n        this.once(\"close\", onclose);\n        this.once(\"upgrading\", onupgrade);\n        if (this.upgrades.indexOf(\"webtransport\") !== -1 &&\n            name !== \"webtransport\") {\n            // favor WebTransport\n            this.setTimeoutFn(() => {\n                if (!failed) {\n                    transport.open();\n                }\n            }, 200);\n        }\n        else {\n            transport.open();\n        }\n    }\n    /**\n     * Called when connection is deemed open.\n     *\n     * @private\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        Socket.priorWebsocketSuccess = \"websocket\" === this.transport.name;\n        this.emitReserved(\"open\");\n        this.flush();\n        // we check for `readyState` in case an `open`\n        // listener already closed the socket\n        if (\"open\" === this.readyState && this.opts.upgrade) {\n            let i = 0;\n            const l = this.upgrades.length;\n            for (; i < l; i++) {\n                this.probe(this.upgrades[i]);\n            }\n        }\n    }\n    /**\n     * Handles a packet.\n     *\n     * @private\n     */\n    onPacket(packet) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            this.emitReserved(\"packet\", packet);\n            // Socket is live - any packet counts\n            this.emitReserved(\"heartbeat\");\n            this.resetPingTimeout();\n            switch (packet.type) {\n                case \"open\":\n                    this.onHandshake(JSON.parse(packet.data));\n                    break;\n                case \"ping\":\n                    this.sendPacket(\"pong\");\n                    this.emitReserved(\"ping\");\n                    this.emitReserved(\"pong\");\n                    break;\n                case \"error\":\n                    const err = new Error(\"server error\");\n                    // @ts-ignore\n                    err.code = packet.data;\n                    this.onError(err);\n                    break;\n                case \"message\":\n                    this.emitReserved(\"data\", packet.data);\n                    this.emitReserved(\"message\", packet.data);\n                    break;\n            }\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon handshake completion.\n     *\n     * @param {Object} data - handshake obj\n     * @private\n     */\n    onHandshake(data) {\n        this.emitReserved(\"handshake\", data);\n        this.id = data.sid;\n        this.transport.query.sid = data.sid;\n        this.upgrades = this.filterUpgrades(data.upgrades);\n        this.pingInterval = data.pingInterval;\n        this.pingTimeout = data.pingTimeout;\n        this.maxPayload = data.maxPayload;\n        this.onOpen();\n        // In case open handler closes socket\n        if (\"closed\" === this.readyState)\n            return;\n        this.resetPingTimeout();\n    }\n    /**\n     * Sets and resets ping timeout timer based on server pings.\n     *\n     * @private\n     */\n    resetPingTimeout() {\n        this.clearTimeoutFn(this.pingTimeoutTimer);\n        this.pingTimeoutTimer = this.setTimeoutFn(() => {\n            this.onClose(\"ping timeout\");\n        }, this.pingInterval + this.pingTimeout);\n        if (this.opts.autoUnref) {\n            this.pingTimeoutTimer.unref();\n        }\n    }\n    /**\n     * Called on `drain` event\n     *\n     * @private\n     */\n    onDrain() {\n        this.writeBuffer.splice(0, this.prevBufferLen);\n        // setting prevBufferLen = 0 is very important\n        // for example, when upgrading, upgrade packet is sent over,\n        // and a nonzero prevBufferLen could cause problems on `drain`\n        this.prevBufferLen = 0;\n        if (0 === this.writeBuffer.length) {\n            this.emitReserved(\"drain\");\n        }\n        else {\n            this.flush();\n        }\n    }\n    /**\n     * Flush write buffers.\n     *\n     * @private\n     */\n    flush() {\n        if (\"closed\" !== this.readyState &&\n            this.transport.writable &&\n            !this.upgrading &&\n            this.writeBuffer.length) {\n            const packets = this.getWritablePackets();\n            this.transport.send(packets);\n            // keep track of current length of writeBuffer\n            // splice writeBuffer and callbackBuffer on `drain`\n            this.prevBufferLen = packets.length;\n            this.emitReserved(\"flush\");\n        }\n    }\n    /**\n     * Ensure the encoded size of the writeBuffer is below the maxPayload value sent by the server (only for HTTP\n     * long-polling)\n     *\n     * @private\n     */\n    getWritablePackets() {\n        const shouldCheckPayloadSize = this.maxPayload &&\n            this.transport.name === \"polling\" &&\n            this.writeBuffer.length > 1;\n        if (!shouldCheckPayloadSize) {\n            return this.writeBuffer;\n        }\n        let payloadSize = 1; // first packet type\n        for (let i = 0; i < this.writeBuffer.length; i++) {\n            const data = this.writeBuffer[i].data;\n            if (data) {\n                payloadSize += byteLength(data);\n            }\n            if (i > 0 && payloadSize > this.maxPayload) {\n                return this.writeBuffer.slice(0, i);\n            }\n            payloadSize += 2; // separator + packet type\n        }\n        return this.writeBuffer;\n    }\n    /**\n     * Sends a message.\n     *\n     * @param {String} msg - message.\n     * @param {Object} options.\n     * @param {Function} callback function.\n     * @return {Socket} for chaining.\n     */\n    write(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    send(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param {String} type: packet type.\n     * @param {String} data.\n     * @param {Object} options.\n     * @param {Function} fn - callback function.\n     * @private\n     */\n    sendPacket(type, data, options, fn) {\n        if (\"function\" === typeof data) {\n            fn = data;\n            data = undefined;\n        }\n        if (\"function\" === typeof options) {\n            fn = options;\n            options = null;\n        }\n        if (\"closing\" === this.readyState || \"closed\" === this.readyState) {\n            return;\n        }\n        options = options || {};\n        options.compress = false !== options.compress;\n        const packet = {\n            type: type,\n            data: data,\n            options: options,\n        };\n        this.emitReserved(\"packetCreate\", packet);\n        this.writeBuffer.push(packet);\n        if (fn)\n            this.once(\"flush\", fn);\n        this.flush();\n    }\n    /**\n     * Closes the connection.\n     */\n    close() {\n        const close = () => {\n            this.onClose(\"forced close\");\n            this.transport.close();\n        };\n        const cleanupAndClose = () => {\n            this.off(\"upgrade\", cleanupAndClose);\n            this.off(\"upgradeError\", cleanupAndClose);\n            close();\n        };\n        const waitForUpgrade = () => {\n            // wait for upgrade to finish since we can't send packets while pausing a transport\n            this.once(\"upgrade\", cleanupAndClose);\n            this.once(\"upgradeError\", cleanupAndClose);\n        };\n        if (\"opening\" === this.readyState || \"open\" === this.readyState) {\n            this.readyState = \"closing\";\n            if (this.writeBuffer.length) {\n                this.once(\"drain\", () => {\n                    if (this.upgrading) {\n                        waitForUpgrade();\n                    }\n                    else {\n                        close();\n                    }\n                });\n            }\n            else if (this.upgrading) {\n                waitForUpgrade();\n            }\n            else {\n                close();\n            }\n        }\n        return this;\n    }\n    /**\n     * Called upon transport error\n     *\n     * @private\n     */\n    onError(err) {\n        Socket.priorWebsocketSuccess = false;\n        this.emitReserved(\"error\", err);\n        this.onClose(\"transport error\", err);\n    }\n    /**\n     * Called upon transport close.\n     *\n     * @private\n     */\n    onClose(reason, description) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            // clear timers\n            this.clearTimeoutFn(this.pingTimeoutTimer);\n            // stop event from firing again for transport\n            this.transport.removeAllListeners(\"close\");\n            // ensure transport won't stay open\n            this.transport.close();\n            // ignore further transport communication\n            this.transport.removeAllListeners();\n            if (typeof removeEventListener === \"function\") {\n                removeEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n                removeEventListener(\"offline\", this.offlineEventListener, false);\n            }\n            // set ready state\n            this.readyState = \"closed\";\n            // clear session id\n            this.id = null;\n            // emit close event\n            this.emitReserved(\"close\", reason, description);\n            // clean buffers after, so users can still\n            // grab the buffers on `close` event\n            this.writeBuffer = [];\n            this.prevBufferLen = 0;\n        }\n    }\n    /**\n     * Filters upgrades, returning only those matching client transports.\n     *\n     * @param {Array} upgrades - server upgrades\n     * @private\n     */\n    filterUpgrades(upgrades) {\n        const filteredUpgrades = [];\n        let i = 0;\n        const j = upgrades.length;\n        for (; i < j; i++) {\n            if (~this.transports.indexOf(upgrades[i]))\n                filteredUpgrades.push(upgrades[i]);\n        }\n        return filteredUpgrades;\n    }\n}\nSocket.protocol = protocol;\n", "import { Socket } from \"./socket.js\";\nexport { Socket };\nexport const protocol = Socket.protocol;\nexport { Transport, TransportError } from \"./transport.js\";\nexport { transports } from \"./transports/index.js\";\nexport { installTimerFunctions } from \"./util.js\";\nexport { parse } from \"./contrib/parseuri.js\";\nexport { nextTick } from \"./transports/websocket-constructor.js\";\n", "import { parse } from \"engine.io-client\";\n/**\n * URL parser.\n *\n * @param uri - url\n * @param path - the request path of the connection\n * @param loc - An object meant to mimic window.location.\n *        Defaults to window.location.\n * @public\n */\nexport function url(uri, path = \"\", loc) {\n    let obj = uri;\n    // default to window.location\n    loc = loc || (typeof location !== \"undefined\" && location);\n    if (null == uri)\n        uri = loc.protocol + \"//\" + loc.host;\n    // relative path support\n    if (typeof uri === \"string\") {\n        if (\"/\" === uri.charAt(0)) {\n            if (\"/\" === uri.charAt(1)) {\n                uri = loc.protocol + uri;\n            }\n            else {\n                uri = loc.host + uri;\n            }\n        }\n        if (!/^(https?|wss?):\\/\\//.test(uri)) {\n            if (\"undefined\" !== typeof loc) {\n                uri = loc.protocol + \"//\" + uri;\n            }\n            else {\n                uri = \"https://\" + uri;\n            }\n        }\n        // parse\n        obj = parse(uri);\n    }\n    // make sure we treat `localhost:80` and `localhost` equally\n    if (!obj.port) {\n        if (/^(http|ws)$/.test(obj.protocol)) {\n            obj.port = \"80\";\n        }\n        else if (/^(http|ws)s$/.test(obj.protocol)) {\n            obj.port = \"443\";\n        }\n    }\n    obj.path = obj.path || \"/\";\n    const ipv6 = obj.host.indexOf(\":\") !== -1;\n    const host = ipv6 ? \"[\" + obj.host + \"]\" : obj.host;\n    // define unique id\n    obj.id = obj.protocol + \"://\" + host + \":\" + obj.port + path;\n    // define href\n    obj.href =\n        obj.protocol +\n            \"://\" +\n            host +\n            (loc && loc.port === obj.port ? \"\" : \":\" + obj.port);\n    return obj;\n}\n", "import { Emitter } from \"@socket.io/component-emitter\";\nimport { deconstructPacket, reconstructPacket } from \"./binary.js\";\nimport { isBinary, hasBinary } from \"./is-binary.js\";\n/**\n * These strings must not be used as event names, as they have a special meaning.\n */\nconst RESERVED_EVENTS = [\n    \"connect\",\n    \"connect_error\",\n    \"disconnect\",\n    \"disconnecting\",\n    \"newListener\",\n    \"removeListener\", // used by the Node.js EventEmitter\n];\n/**\n * Protocol version.\n *\n * @public\n */\nexport const protocol = 5;\nexport var PacketType;\n(function (PacketType) {\n    PacketType[PacketType[\"CONNECT\"] = 0] = \"CONNECT\";\n    PacketType[PacketType[\"DISCONNECT\"] = 1] = \"DISCONNECT\";\n    PacketType[PacketType[\"EVENT\"] = 2] = \"EVENT\";\n    PacketType[PacketType[\"ACK\"] = 3] = \"ACK\";\n    PacketType[PacketType[\"CONNECT_ERROR\"] = 4] = \"CONNECT_ERROR\";\n    PacketType[PacketType[\"BINARY_EVENT\"] = 5] = \"BINARY_EVENT\";\n    PacketType[PacketType[\"BINARY_ACK\"] = 6] = \"BINARY_ACK\";\n})(PacketType || (PacketType = {}));\n/**\n * A socket.io Encoder instance\n */\nexport class Encoder {\n    /**\n     * Encoder constructor\n     *\n     * @param {function} replacer - custom replacer to pass down to JSON.parse\n     */\n    constructor(replacer) {\n        this.replacer = replacer;\n    }\n    /**\n     * Encode a packet as a single string if non-binary, or as a\n     * buffer sequence, depending on packet type.\n     *\n     * @param {Object} obj - packet object\n     */\n    encode(obj) {\n        if (obj.type === PacketType.EVENT || obj.type === PacketType.ACK) {\n            if (hasBinary(obj)) {\n                return this.encodeAsBinary({\n                    type: obj.type === PacketType.EVENT\n                        ? PacketType.BINARY_EVENT\n                        : PacketType.BINARY_ACK,\n                    nsp: obj.nsp,\n                    data: obj.data,\n                    id: obj.id,\n                });\n            }\n        }\n        return [this.encodeAsString(obj)];\n    }\n    /**\n     * Encode packet as string.\n     */\n    encodeAsString(obj) {\n        // first is type\n        let str = \"\" + obj.type;\n        // attachments if we have them\n        if (obj.type === PacketType.BINARY_EVENT ||\n            obj.type === PacketType.BINARY_ACK) {\n            str += obj.attachments + \"-\";\n        }\n        // if we have a namespace other than `/`\n        // we append it followed by a comma `,`\n        if (obj.nsp && \"/\" !== obj.nsp) {\n            str += obj.nsp + \",\";\n        }\n        // immediately followed by the id\n        if (null != obj.id) {\n            str += obj.id;\n        }\n        // json data\n        if (null != obj.data) {\n            str += JSON.stringify(obj.data, this.replacer);\n        }\n        return str;\n    }\n    /**\n     * Encode packet as 'buffer sequence' by removing blobs, and\n     * deconstructing packet into object with placeholders and\n     * a list of buffers.\n     */\n    encodeAsBinary(obj) {\n        const deconstruction = deconstructPacket(obj);\n        const pack = this.encodeAsString(deconstruction.packet);\n        const buffers = deconstruction.buffers;\n        buffers.unshift(pack); // add packet info to beginning of data list\n        return buffers; // write all the buffers\n    }\n}\n// see https://stackoverflow.com/questions/8511281/check-if-a-value-is-an-object-in-javascript\nfunction isObject(value) {\n    return Object.prototype.toString.call(value) === \"[object Object]\";\n}\n/**\n * A socket.io Decoder instance\n *\n * @return {Object} decoder\n */\nexport class Decoder extends Emitter {\n    /**\n     * Decoder constructor\n     *\n     * @param {function} reviver - custom reviver to pass down to JSON.stringify\n     */\n    constructor(reviver) {\n        super();\n        this.reviver = reviver;\n    }\n    /**\n     * Decodes an encoded packet string into packet JSON.\n     *\n     * @param {String} obj - encoded packet\n     */\n    add(obj) {\n        let packet;\n        if (typeof obj === \"string\") {\n            if (this.reconstructor) {\n                throw new Error(\"got plaintext data when reconstructing a packet\");\n            }\n            packet = this.decodeString(obj);\n            const isBinaryEvent = packet.type === PacketType.BINARY_EVENT;\n            if (isBinaryEvent || packet.type === PacketType.BINARY_ACK) {\n                packet.type = isBinaryEvent ? PacketType.EVENT : PacketType.ACK;\n                // binary packet's json\n                this.reconstructor = new BinaryReconstructor(packet);\n                // no attachments, labeled binary but no binary data to follow\n                if (packet.attachments === 0) {\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n            else {\n                // non-binary full packet\n                super.emitReserved(\"decoded\", packet);\n            }\n        }\n        else if (isBinary(obj) || obj.base64) {\n            // raw binary data\n            if (!this.reconstructor) {\n                throw new Error(\"got binary data when not reconstructing a packet\");\n            }\n            else {\n                packet = this.reconstructor.takeBinaryData(obj);\n                if (packet) {\n                    // received final buffer\n                    this.reconstructor = null;\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n        }\n        else {\n            throw new Error(\"Unknown type: \" + obj);\n        }\n    }\n    /**\n     * Decode a packet String (JSON data)\n     *\n     * @param {String} str\n     * @return {Object} packet\n     */\n    decodeString(str) {\n        let i = 0;\n        // look up type\n        const p = {\n            type: Number(str.charAt(0)),\n        };\n        if (PacketType[p.type] === undefined) {\n            throw new Error(\"unknown packet type \" + p.type);\n        }\n        // look up attachments if type binary\n        if (p.type === PacketType.BINARY_EVENT ||\n            p.type === PacketType.BINARY_ACK) {\n            const start = i + 1;\n            while (str.charAt(++i) !== \"-\" && i != str.length) { }\n            const buf = str.substring(start, i);\n            if (buf != Number(buf) || str.charAt(i) !== \"-\") {\n                throw new Error(\"Illegal attachments\");\n            }\n            p.attachments = Number(buf);\n        }\n        // look up namespace (if any)\n        if (\"/\" === str.charAt(i + 1)) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (\",\" === c)\n                    break;\n                if (i === str.length)\n                    break;\n            }\n            p.nsp = str.substring(start, i);\n        }\n        else {\n            p.nsp = \"/\";\n        }\n        // look up id\n        const next = str.charAt(i + 1);\n        if (\"\" !== next && Number(next) == next) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (null == c || Number(c) != c) {\n                    --i;\n                    break;\n                }\n                if (i === str.length)\n                    break;\n            }\n            p.id = Number(str.substring(start, i + 1));\n        }\n        // look up json data\n        if (str.charAt(++i)) {\n            const payload = this.tryParse(str.substr(i));\n            if (Decoder.isPayloadValid(p.type, payload)) {\n                p.data = payload;\n            }\n            else {\n                throw new Error(\"invalid payload\");\n            }\n        }\n        return p;\n    }\n    tryParse(str) {\n        try {\n            return JSON.parse(str, this.reviver);\n        }\n        catch (e) {\n            return false;\n        }\n    }\n    static isPayloadValid(type, payload) {\n        switch (type) {\n            case PacketType.CONNECT:\n                return isObject(payload);\n            case PacketType.DISCONNECT:\n                return payload === undefined;\n            case PacketType.CONNECT_ERROR:\n                return typeof payload === \"string\" || isObject(payload);\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                return (Array.isArray(payload) &&\n                    (typeof payload[0] === \"number\" ||\n                        (typeof payload[0] === \"string\" &&\n                            RESERVED_EVENTS.indexOf(payload[0]) === -1)));\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                return Array.isArray(payload);\n        }\n    }\n    /**\n     * Deallocates a parser's resources\n     */\n    destroy() {\n        if (this.reconstructor) {\n            this.reconstructor.finishedReconstruction();\n            this.reconstructor = null;\n        }\n    }\n}\n/**\n * A manager of a binary event's 'buffer sequence'. Should\n * be constructed whenever a packet of type BINARY_EVENT is\n * decoded.\n *\n * @param {Object} packet\n * @return {BinaryReconstructor} initialized reconstructor\n */\nclass BinaryReconstructor {\n    constructor(packet) {\n        this.packet = packet;\n        this.buffers = [];\n        this.reconPack = packet;\n    }\n    /**\n     * Method to be called when binary data received from connection\n     * after a BINARY_EVENT packet.\n     *\n     * @param {Buffer | ArrayBuffer} binData - the raw binary data received\n     * @return {null | Object} returns null if more binary data is expected or\n     *   a reconstructed packet object if all buffers have been received.\n     */\n    takeBinaryData(binData) {\n        this.buffers.push(binData);\n        if (this.buffers.length === this.reconPack.attachments) {\n            // done with buffer list\n            const packet = reconstructPacket(this.reconPack, this.buffers);\n            this.finishedReconstruction();\n            return packet;\n        }\n        return null;\n    }\n    /**\n     * Cleans up binary packet reconstruction variables.\n     */\n    finishedReconstruction() {\n        this.reconPack = null;\n        this.buffers = [];\n    }\n}\n", "const withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nconst isView = (obj) => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj.buffer instanceof ArrayBuffer;\n};\nconst toString = Object.prototype.toString;\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeFile = typeof File === \"function\" ||\n    (typeof File !== \"undefined\" &&\n        toString.call(File) === \"[object FileConstructor]\");\n/**\n * Returns true if obj is a Buffer, an ArrayBuffer, a Blob or a File.\n *\n * @private\n */\nexport function isBinary(obj) {\n    return ((withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj))) ||\n        (withNativeBlob && obj instanceof Blob) ||\n        (withNativeFile && obj instanceof File));\n}\nexport function hasBinary(obj, toJSON) {\n    if (!obj || typeof obj !== \"object\") {\n        return false;\n    }\n    if (Array.isArray(obj)) {\n        for (let i = 0, l = obj.length; i < l; i++) {\n            if (hasBinary(obj[i])) {\n                return true;\n            }\n        }\n        return false;\n    }\n    if (isBinary(obj)) {\n        return true;\n    }\n    if (obj.toJSON &&\n        typeof obj.toJSON === \"function\" &&\n        arguments.length === 1) {\n        return hasBinary(obj.toJSON(), true);\n    }\n    for (const key in obj) {\n        if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {\n            return true;\n        }\n    }\n    return false;\n}\n", "import { isBinary } from \"./is-binary.js\";\n/**\n * Replaces every Buffer | ArrayBuffer | Blob | File in packet with a numbered placeholder.\n *\n * @param {Object} packet - socket.io event packet\n * @return {Object} with deconstructed packet and list of buffers\n * @public\n */\nexport function deconstructPacket(packet) {\n    const buffers = [];\n    const packetData = packet.data;\n    const pack = packet;\n    pack.data = _deconstructPacket(packetData, buffers);\n    pack.attachments = buffers.length; // number of binary 'attachments'\n    return { packet: pack, buffers: buffers };\n}\nfunction _deconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (isBinary(data)) {\n        const placeholder = { _placeholder: true, num: buffers.length };\n        buffers.push(data);\n        return placeholder;\n    }\n    else if (Array.isArray(data)) {\n        const newData = new Array(data.length);\n        for (let i = 0; i < data.length; i++) {\n            newData[i] = _deconstructPacket(data[i], buffers);\n        }\n        return newData;\n    }\n    else if (typeof data === \"object\" && !(data instanceof Date)) {\n        const newData = {};\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                newData[key] = _deconstructPacket(data[key], buffers);\n            }\n        }\n        return newData;\n    }\n    return data;\n}\n/**\n * Reconstructs a binary packet from its placeholder packet and buffers\n *\n * @param {Object} packet - event packet with placeholders\n * @param {Array} buffers - binary buffers to put in placeholder positions\n * @return {Object} reconstructed packet\n * @public\n */\nexport function reconstructPacket(packet, buffers) {\n    packet.data = _reconstructPacket(packet.data, buffers);\n    delete packet.attachments; // no longer useful\n    return packet;\n}\nfunction _reconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (data && data._placeholder === true) {\n        const isIndexValid = typeof data.num === \"number\" &&\n            data.num >= 0 &&\n            data.num < buffers.length;\n        if (isIndexValid) {\n            return buffers[data.num]; // appropriate buffer (should be natural order anyway)\n        }\n        else {\n            throw new Error(\"illegal attachments\");\n        }\n    }\n    else if (Array.isArray(data)) {\n        for (let i = 0; i < data.length; i++) {\n            data[i] = _reconstructPacket(data[i], buffers);\n        }\n    }\n    else if (typeof data === \"object\") {\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                data[key] = _reconstructPacket(data[key], buffers);\n            }\n        }\n    }\n    return data;\n}\n", "export function on(obj, ev, fn) {\n    obj.on(ev, fn);\n    return function subDestroy() {\n        obj.off(ev, fn);\n    };\n}\n", "import { PacketType } from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\n/**\n * Internal events.\n * These events can't be emitted by the user.\n */\nconst RESERVED_EVENTS = Object.freeze({\n    connect: 1,\n    connect_error: 1,\n    disconnect: 1,\n    disconnecting: 1,\n    // EventEmitter reserved events: https://nodejs.org/api/events.html#events_event_newlistener\n    newListener: 1,\n    removeListener: 1,\n});\n/**\n * A Socket is the fundamental class for interacting with the server.\n *\n * A Socket belongs to a certain Namespace (by default /) and uses an underlying {@link Manager} to communicate.\n *\n * @example\n * const socket = io();\n *\n * socket.on(\"connect\", () => {\n *   console.log(\"connected\");\n * });\n *\n * // send an event to the server\n * socket.emit(\"foo\", \"bar\");\n *\n * socket.on(\"foobar\", () => {\n *   // an event was received from the server\n * });\n *\n * // upon disconnection\n * socket.on(\"disconnect\", (reason) => {\n *   console.log(`disconnected due to ${reason}`);\n * });\n */\nexport class Socket extends Emitter {\n    /**\n     * `Socket` constructor.\n     */\n    constructor(io, nsp, opts) {\n        super();\n        /**\n         * Whether the socket is currently connected to the server.\n         *\n         * @example\n         * const socket = io();\n         *\n         * socket.on(\"connect\", () => {\n         *   console.log(socket.connected); // true\n         * });\n         *\n         * socket.on(\"disconnect\", () => {\n         *   console.log(socket.connected); // false\n         * });\n         */\n        this.connected = false;\n        /**\n         * Whether the connection state was recovered after a temporary disconnection. In that case, any missed packets will\n         * be transmitted by the server.\n         */\n        this.recovered = false;\n        /**\n         * Buffer for packets received before the CONNECT packet\n         */\n        this.receiveBuffer = [];\n        /**\n         * Buffer for packets that will be sent once the socket is connected\n         */\n        this.sendBuffer = [];\n        /**\n         * The queue of packets to be sent with retry in case of failure.\n         *\n         * Packets are sent one by one, each waiting for the server acknowledgement, in order to guarantee the delivery order.\n         * @private\n         */\n        this._queue = [];\n        /**\n         * A sequence to generate the ID of the {@link QueuedPacket}.\n         * @private\n         */\n        this._queueSeq = 0;\n        this.ids = 0;\n        this.acks = {};\n        this.flags = {};\n        this.io = io;\n        this.nsp = nsp;\n        if (opts && opts.auth) {\n            this.auth = opts.auth;\n        }\n        this._opts = Object.assign({}, opts);\n        if (this.io._autoConnect)\n            this.open();\n    }\n    /**\n     * Whether the socket is currently disconnected\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"connect\", () => {\n     *   console.log(socket.disconnected); // false\n     * });\n     *\n     * socket.on(\"disconnect\", () => {\n     *   console.log(socket.disconnected); // true\n     * });\n     */\n    get disconnected() {\n        return !this.connected;\n    }\n    /**\n     * Subscribe to open, close and packet events\n     *\n     * @private\n     */\n    subEvents() {\n        if (this.subs)\n            return;\n        const io = this.io;\n        this.subs = [\n            on(io, \"open\", this.onopen.bind(this)),\n            on(io, \"packet\", this.onpacket.bind(this)),\n            on(io, \"error\", this.onerror.bind(this)),\n            on(io, \"close\", this.onclose.bind(this)),\n        ];\n    }\n    /**\n     * Whether the Socket will try to reconnect when its Manager connects or reconnects.\n     *\n     * @example\n     * const socket = io();\n     *\n     * console.log(socket.active); // true\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   if (reason === \"io server disconnect\") {\n     *     // the disconnection was initiated by the server, you need to manually reconnect\n     *     console.log(socket.active); // false\n     *   }\n     *   // else the socket will automatically try to reconnect\n     *   console.log(socket.active); // true\n     * });\n     */\n    get active() {\n        return !!this.subs;\n    }\n    /**\n     * \"Opens\" the socket.\n     *\n     * @example\n     * const socket = io({\n     *   autoConnect: false\n     * });\n     *\n     * socket.connect();\n     */\n    connect() {\n        if (this.connected)\n            return this;\n        this.subEvents();\n        if (!this.io[\"_reconnecting\"])\n            this.io.open(); // ensure open\n        if (\"open\" === this.io._readyState)\n            this.onopen();\n        return this;\n    }\n    /**\n     * Alias for {@link connect()}.\n     */\n    open() {\n        return this.connect();\n    }\n    /**\n     * Sends a `message` event.\n     *\n     * This method mimics the WebSocket.send() method.\n     *\n     * @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send\n     *\n     * @example\n     * socket.send(\"hello\");\n     *\n     * // this is equivalent to\n     * socket.emit(\"message\", \"hello\");\n     *\n     * @return self\n     */\n    send(...args) {\n        args.unshift(\"message\");\n        this.emit.apply(this, args);\n        return this;\n    }\n    /**\n     * Override `emit`.\n     * If the event is in `events`, it's emitted normally.\n     *\n     * @example\n     * socket.emit(\"hello\", \"world\");\n     *\n     * // all serializable datastructures are supported (no need to call JSON.stringify)\n     * socket.emit(\"hello\", 1, \"2\", { 3: [\"4\"], 5: Uint8Array.from([6]) });\n     *\n     * // with an acknowledgement from the server\n     * socket.emit(\"hello\", \"world\", (val) => {\n     *   // ...\n     * });\n     *\n     * @return self\n     */\n    emit(ev, ...args) {\n        if (RESERVED_EVENTS.hasOwnProperty(ev)) {\n            throw new Error('\"' + ev.toString() + '\" is a reserved event name');\n        }\n        args.unshift(ev);\n        if (this._opts.retries && !this.flags.fromQueue && !this.flags.volatile) {\n            this._addToQueue(args);\n            return this;\n        }\n        const packet = {\n            type: PacketType.EVENT,\n            data: args,\n        };\n        packet.options = {};\n        packet.options.compress = this.flags.compress !== false;\n        // event ack callback\n        if (\"function\" === typeof args[args.length - 1]) {\n            const id = this.ids++;\n            const ack = args.pop();\n            this._registerAckCallback(id, ack);\n            packet.id = id;\n        }\n        const isTransportWritable = this.io.engine &&\n            this.io.engine.transport &&\n            this.io.engine.transport.writable;\n        const discardPacket = this.flags.volatile && (!isTransportWritable || !this.connected);\n        if (discardPacket) {\n        }\n        else if (this.connected) {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        }\n        else {\n            this.sendBuffer.push(packet);\n        }\n        this.flags = {};\n        return this;\n    }\n    /**\n     * @private\n     */\n    _registerAckCallback(id, ack) {\n        var _a;\n        const timeout = (_a = this.flags.timeout) !== null && _a !== void 0 ? _a : this._opts.ackTimeout;\n        if (timeout === undefined) {\n            this.acks[id] = ack;\n            return;\n        }\n        // @ts-ignore\n        const timer = this.io.setTimeoutFn(() => {\n            delete this.acks[id];\n            for (let i = 0; i < this.sendBuffer.length; i++) {\n                if (this.sendBuffer[i].id === id) {\n                    this.sendBuffer.splice(i, 1);\n                }\n            }\n            ack.call(this, new Error(\"operation has timed out\"));\n        }, timeout);\n        this.acks[id] = (...args) => {\n            // @ts-ignore\n            this.io.clearTimeoutFn(timer);\n            ack.apply(this, [null, ...args]);\n        };\n    }\n    /**\n     * Emits an event and waits for an acknowledgement\n     *\n     * @example\n     * // without timeout\n     * const response = await socket.emitWithAck(\"hello\", \"world\");\n     *\n     * // with a specific timeout\n     * try {\n     *   const response = await socket.timeout(1000).emitWithAck(\"hello\", \"world\");\n     * } catch (err) {\n     *   // the server did not acknowledge the event in the given delay\n     * }\n     *\n     * @return a Promise that will be fulfilled when the server acknowledges the event\n     */\n    emitWithAck(ev, ...args) {\n        // the timeout flag is optional\n        const withErr = this.flags.timeout !== undefined || this._opts.ackTimeout !== undefined;\n        return new Promise((resolve, reject) => {\n            args.push((arg1, arg2) => {\n                if (withErr) {\n                    return arg1 ? reject(arg1) : resolve(arg2);\n                }\n                else {\n                    return resolve(arg1);\n                }\n            });\n            this.emit(ev, ...args);\n        });\n    }\n    /**\n     * Add the packet to the queue.\n     * @param args\n     * @private\n     */\n    _addToQueue(args) {\n        let ack;\n        if (typeof args[args.length - 1] === \"function\") {\n            ack = args.pop();\n        }\n        const packet = {\n            id: this._queueSeq++,\n            tryCount: 0,\n            pending: false,\n            args,\n            flags: Object.assign({ fromQueue: true }, this.flags),\n        };\n        args.push((err, ...responseArgs) => {\n            if (packet !== this._queue[0]) {\n                // the packet has already been acknowledged\n                return;\n            }\n            const hasError = err !== null;\n            if (hasError) {\n                if (packet.tryCount > this._opts.retries) {\n                    this._queue.shift();\n                    if (ack) {\n                        ack(err);\n                    }\n                }\n            }\n            else {\n                this._queue.shift();\n                if (ack) {\n                    ack(null, ...responseArgs);\n                }\n            }\n            packet.pending = false;\n            return this._drainQueue();\n        });\n        this._queue.push(packet);\n        this._drainQueue();\n    }\n    /**\n     * Send the first packet of the queue, and wait for an acknowledgement from the server.\n     * @param force - whether to resend a packet that has not been acknowledged yet\n     *\n     * @private\n     */\n    _drainQueue(force = false) {\n        if (!this.connected || this._queue.length === 0) {\n            return;\n        }\n        const packet = this._queue[0];\n        if (packet.pending && !force) {\n            return;\n        }\n        packet.pending = true;\n        packet.tryCount++;\n        this.flags = packet.flags;\n        this.emit.apply(this, packet.args);\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param packet\n     * @private\n     */\n    packet(packet) {\n        packet.nsp = this.nsp;\n        this.io._packet(packet);\n    }\n    /**\n     * Called upon engine `open`.\n     *\n     * @private\n     */\n    onopen() {\n        if (typeof this.auth == \"function\") {\n            this.auth((data) => {\n                this._sendConnectPacket(data);\n            });\n        }\n        else {\n            this._sendConnectPacket(this.auth);\n        }\n    }\n    /**\n     * Sends a CONNECT packet to initiate the Socket.IO session.\n     *\n     * @param data\n     * @private\n     */\n    _sendConnectPacket(data) {\n        this.packet({\n            type: PacketType.CONNECT,\n            data: this._pid\n                ? Object.assign({ pid: this._pid, offset: this._lastOffset }, data)\n                : data,\n        });\n    }\n    /**\n     * Called upon engine or manager `error`.\n     *\n     * @param err\n     * @private\n     */\n    onerror(err) {\n        if (!this.connected) {\n            this.emitReserved(\"connect_error\", err);\n        }\n    }\n    /**\n     * Called upon engine `close`.\n     *\n     * @param reason\n     * @param description\n     * @private\n     */\n    onclose(reason, description) {\n        this.connected = false;\n        delete this.id;\n        this.emitReserved(\"disconnect\", reason, description);\n    }\n    /**\n     * Called with socket packet.\n     *\n     * @param packet\n     * @private\n     */\n    onpacket(packet) {\n        const sameNamespace = packet.nsp === this.nsp;\n        if (!sameNamespace)\n            return;\n        switch (packet.type) {\n            case PacketType.CONNECT:\n                if (packet.data && packet.data.sid) {\n                    this.onconnect(packet.data.sid, packet.data.pid);\n                }\n                else {\n                    this.emitReserved(\"connect_error\", new Error(\"It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)\"));\n                }\n                break;\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                this.onevent(packet);\n                break;\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                this.onack(packet);\n                break;\n            case PacketType.DISCONNECT:\n                this.ondisconnect();\n                break;\n            case PacketType.CONNECT_ERROR:\n                this.destroy();\n                const err = new Error(packet.data.message);\n                // @ts-ignore\n                err.data = packet.data.data;\n                this.emitReserved(\"connect_error\", err);\n                break;\n        }\n    }\n    /**\n     * Called upon a server event.\n     *\n     * @param packet\n     * @private\n     */\n    onevent(packet) {\n        const args = packet.data || [];\n        if (null != packet.id) {\n            args.push(this.ack(packet.id));\n        }\n        if (this.connected) {\n            this.emitEvent(args);\n        }\n        else {\n            this.receiveBuffer.push(Object.freeze(args));\n        }\n    }\n    emitEvent(args) {\n        if (this._anyListeners && this._anyListeners.length) {\n            const listeners = this._anyListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, args);\n            }\n        }\n        super.emit.apply(this, args);\n        if (this._pid && args.length && typeof args[args.length - 1] === \"string\") {\n            this._lastOffset = args[args.length - 1];\n        }\n    }\n    /**\n     * Produces an ack callback to emit with an event.\n     *\n     * @private\n     */\n    ack(id) {\n        const self = this;\n        let sent = false;\n        return function (...args) {\n            // prevent double callbacks\n            if (sent)\n                return;\n            sent = true;\n            self.packet({\n                type: PacketType.ACK,\n                id: id,\n                data: args,\n            });\n        };\n    }\n    /**\n     * Called upon a server acknowlegement.\n     *\n     * @param packet\n     * @private\n     */\n    onack(packet) {\n        const ack = this.acks[packet.id];\n        if (\"function\" === typeof ack) {\n            ack.apply(this, packet.data);\n            delete this.acks[packet.id];\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon server connect.\n     *\n     * @private\n     */\n    onconnect(id, pid) {\n        this.id = id;\n        this.recovered = pid && this._pid === pid;\n        this._pid = pid; // defined only if connection state recovery is enabled\n        this.connected = true;\n        this.emitBuffered();\n        this.emitReserved(\"connect\");\n        this._drainQueue(true);\n    }\n    /**\n     * Emit buffered events (received and emitted).\n     *\n     * @private\n     */\n    emitBuffered() {\n        this.receiveBuffer.forEach((args) => this.emitEvent(args));\n        this.receiveBuffer = [];\n        this.sendBuffer.forEach((packet) => {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        });\n        this.sendBuffer = [];\n    }\n    /**\n     * Called upon server disconnect.\n     *\n     * @private\n     */\n    ondisconnect() {\n        this.destroy();\n        this.onclose(\"io server disconnect\");\n    }\n    /**\n     * Called upon forced client/server side disconnections,\n     * this method ensures the manager stops tracking us and\n     * that reconnections don't get triggered for this.\n     *\n     * @private\n     */\n    destroy() {\n        if (this.subs) {\n            // clean subscriptions to avoid reconnections\n            this.subs.forEach((subDestroy) => subDestroy());\n            this.subs = undefined;\n        }\n        this.io[\"_destroy\"](this);\n    }\n    /**\n     * Disconnects the socket manually. In that case, the socket will not try to reconnect.\n     *\n     * If this is the last active Socket instance of the {@link Manager}, the low-level connection will be closed.\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   // console.log(reason); prints \"io client disconnect\"\n     * });\n     *\n     * socket.disconnect();\n     *\n     * @return self\n     */\n    disconnect() {\n        if (this.connected) {\n            this.packet({ type: PacketType.DISCONNECT });\n        }\n        // remove socket from pool\n        this.destroy();\n        if (this.connected) {\n            // fire events\n            this.onclose(\"io client disconnect\");\n        }\n        return this;\n    }\n    /**\n     * Alias for {@link disconnect()}.\n     *\n     * @return self\n     */\n    close() {\n        return this.disconnect();\n    }\n    /**\n     * Sets the compress flag.\n     *\n     * @example\n     * socket.compress(false).emit(\"hello\");\n     *\n     * @param compress - if `true`, compresses the sending data\n     * @return self\n     */\n    compress(compress) {\n        this.flags.compress = compress;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the event message will be dropped when this socket is not\n     * ready to send messages.\n     *\n     * @example\n     * socket.volatile.emit(\"hello\"); // the server may or may not receive it\n     *\n     * @returns self\n     */\n    get volatile() {\n        this.flags.volatile = true;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the callback will be called with an error when the\n     * given number of milliseconds have elapsed without an acknowledgement from the server:\n     *\n     * @example\n     * socket.timeout(5000).emit(\"my-event\", (err) => {\n     *   if (err) {\n     *     // the server did not acknowledge the event in the given delay\n     *   }\n     * });\n     *\n     * @returns self\n     */\n    timeout(timeout) {\n        this.flags.timeout = timeout;\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * @example\n     * socket.onAny((event, ...args) => {\n     *   console.log(`got ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * @example\n     * socket.prependAny((event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * }\n     *\n     * socket.onAny(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAny(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAny();\n     *\n     * @param listener\n     */\n    offAny(listener) {\n        if (!this._anyListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAny() {\n        return this._anyListeners || [];\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.onAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.prependAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * }\n     *\n     * socket.onAnyOutgoing(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAnyOutgoing(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAnyOutgoing();\n     *\n     * @param [listener] - the catch-all listener (optional)\n     */\n    offAnyOutgoing(listener) {\n        if (!this._anyOutgoingListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyOutgoingListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyOutgoingListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAnyOutgoing() {\n        return this._anyOutgoingListeners || [];\n    }\n    /**\n     * Notify the listeners for each packet sent\n     *\n     * @param packet\n     *\n     * @private\n     */\n    notifyOutgoingListeners(packet) {\n        if (this._anyOutgoingListeners && this._anyOutgoingListeners.length) {\n            const listeners = this._anyOutgoingListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, packet.data);\n            }\n        }\n    }\n}\n", "/**\n * Initialize backoff timer with `opts`.\n *\n * - `min` initial timeout in milliseconds [100]\n * - `max` max timeout [10000]\n * - `jitter` [0]\n * - `factor` [2]\n *\n * @param {Object} opts\n * @api public\n */\nexport function Backoff(opts) {\n    opts = opts || {};\n    this.ms = opts.min || 100;\n    this.max = opts.max || 10000;\n    this.factor = opts.factor || 2;\n    this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;\n    this.attempts = 0;\n}\n/**\n * Return the backoff duration.\n *\n * @return {Number}\n * @api public\n */\nBackoff.prototype.duration = function () {\n    var ms = this.ms * Math.pow(this.factor, this.attempts++);\n    if (this.jitter) {\n        var rand = Math.random();\n        var deviation = Math.floor(rand * this.jitter * ms);\n        ms = (Math.floor(rand * 10) & 1) == 0 ? ms - deviation : ms + deviation;\n    }\n    return Math.min(ms, this.max) | 0;\n};\n/**\n * Reset the number of attempts.\n *\n * @api public\n */\nBackoff.prototype.reset = function () {\n    this.attempts = 0;\n};\n/**\n * Set the minimum duration\n *\n * @api public\n */\nBackoff.prototype.setMin = function (min) {\n    this.ms = min;\n};\n/**\n * Set the maximum duration\n *\n * @api public\n */\nBackoff.prototype.setMax = function (max) {\n    this.max = max;\n};\n/**\n * Set the jitter\n *\n * @api public\n */\nBackoff.prototype.setJitter = function (jitter) {\n    this.jitter = jitter;\n};\n", "import { Socket as Engine, installTimerFunctions, nextTick, } from \"engine.io-client\";\nimport { Socket } from \"./socket.js\";\nimport * as parser from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Backoff } from \"./contrib/backo2.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\nexport class Manager extends Emitter {\n    constructor(uri, opts) {\n        var _a;\n        super();\n        this.nsps = {};\n        this.subs = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = undefined;\n        }\n        opts = opts || {};\n        opts.path = opts.path || \"/socket.io\";\n        this.opts = opts;\n        installTimerFunctions(this, opts);\n        this.reconnection(opts.reconnection !== false);\n        this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);\n        this.reconnectionDelay(opts.reconnectionDelay || 1000);\n        this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);\n        this.randomizationFactor((_a = opts.randomizationFactor) !== null && _a !== void 0 ? _a : 0.5);\n        this.backoff = new Backoff({\n            min: this.reconnectionDelay(),\n            max: this.reconnectionDelayMax(),\n            jitter: this.randomizationFactor(),\n        });\n        this.timeout(null == opts.timeout ? 20000 : opts.timeout);\n        this._readyState = \"closed\";\n        this.uri = uri;\n        const _parser = opts.parser || parser;\n        this.encoder = new _parser.Encoder();\n        this.decoder = new _parser.Decoder();\n        this._autoConnect = opts.autoConnect !== false;\n        if (this._autoConnect)\n            this.open();\n    }\n    reconnection(v) {\n        if (!arguments.length)\n            return this._reconnection;\n        this._reconnection = !!v;\n        return this;\n    }\n    reconnectionAttempts(v) {\n        if (v === undefined)\n            return this._reconnectionAttempts;\n        this._reconnectionAttempts = v;\n        return this;\n    }\n    reconnectionDelay(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelay;\n        this._reconnectionDelay = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMin(v);\n        return this;\n    }\n    randomizationFactor(v) {\n        var _a;\n        if (v === undefined)\n            return this._randomizationFactor;\n        this._randomizationFactor = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setJitter(v);\n        return this;\n    }\n    reconnectionDelayMax(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelayMax;\n        this._reconnectionDelayMax = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMax(v);\n        return this;\n    }\n    timeout(v) {\n        if (!arguments.length)\n            return this._timeout;\n        this._timeout = v;\n        return this;\n    }\n    /**\n     * Starts trying to reconnect if reconnection is enabled and we have not\n     * started reconnecting yet\n     *\n     * @private\n     */\n    maybeReconnectOnOpen() {\n        // Only try to reconnect if it's the first time we're connecting\n        if (!this._reconnecting &&\n            this._reconnection &&\n            this.backoff.attempts === 0) {\n            // keeps reconnection from firing twice for the same reconnection loop\n            this.reconnect();\n        }\n    }\n    /**\n     * Sets the current transport `socket`.\n     *\n     * @param {Function} fn - optional, callback\n     * @return self\n     * @public\n     */\n    open(fn) {\n        if (~this._readyState.indexOf(\"open\"))\n            return this;\n        this.engine = new Engine(this.uri, this.opts);\n        const socket = this.engine;\n        const self = this;\n        this._readyState = \"opening\";\n        this.skipReconnect = false;\n        // emit `open`\n        const openSubDestroy = on(socket, \"open\", function () {\n            self.onopen();\n            fn && fn();\n        });\n        const onError = (err) => {\n            this.cleanup();\n            this._readyState = \"closed\";\n            this.emitReserved(\"error\", err);\n            if (fn) {\n                fn(err);\n            }\n            else {\n                // Only do this if there is no fn to handle the error\n                this.maybeReconnectOnOpen();\n            }\n        };\n        // emit `error`\n        const errorSub = on(socket, \"error\", onError);\n        if (false !== this._timeout) {\n            const timeout = this._timeout;\n            // set timer\n            const timer = this.setTimeoutFn(() => {\n                openSubDestroy();\n                onError(new Error(\"timeout\"));\n                socket.close();\n            }, timeout);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n        this.subs.push(openSubDestroy);\n        this.subs.push(errorSub);\n        return this;\n    }\n    /**\n     * Alias for open()\n     *\n     * @return self\n     * @public\n     */\n    connect(fn) {\n        return this.open(fn);\n    }\n    /**\n     * Called upon transport open.\n     *\n     * @private\n     */\n    onopen() {\n        // clear old subs\n        this.cleanup();\n        // mark as open\n        this._readyState = \"open\";\n        this.emitReserved(\"open\");\n        // add new subs\n        const socket = this.engine;\n        this.subs.push(on(socket, \"ping\", this.onping.bind(this)), on(socket, \"data\", this.ondata.bind(this)), on(socket, \"error\", this.onerror.bind(this)), on(socket, \"close\", this.onclose.bind(this)), on(this.decoder, \"decoded\", this.ondecoded.bind(this)));\n    }\n    /**\n     * Called upon a ping.\n     *\n     * @private\n     */\n    onping() {\n        this.emitReserved(\"ping\");\n    }\n    /**\n     * Called with data.\n     *\n     * @private\n     */\n    ondata(data) {\n        try {\n            this.decoder.add(data);\n        }\n        catch (e) {\n            this.onclose(\"parse error\", e);\n        }\n    }\n    /**\n     * Called when parser fully decodes a packet.\n     *\n     * @private\n     */\n    ondecoded(packet) {\n        // the nextTick call prevents an exception in a user-provided event listener from triggering a disconnection due to a \"parse error\"\n        nextTick(() => {\n            this.emitReserved(\"packet\", packet);\n        }, this.setTimeoutFn);\n    }\n    /**\n     * Called upon socket error.\n     *\n     * @private\n     */\n    onerror(err) {\n        this.emitReserved(\"error\", err);\n    }\n    /**\n     * Creates a new socket for the given `nsp`.\n     *\n     * @return {Socket}\n     * @public\n     */\n    socket(nsp, opts) {\n        let socket = this.nsps[nsp];\n        if (!socket) {\n            socket = new Socket(this, nsp, opts);\n            this.nsps[nsp] = socket;\n        }\n        else if (this._autoConnect && !socket.active) {\n            socket.connect();\n        }\n        return socket;\n    }\n    /**\n     * Called upon a socket close.\n     *\n     * @param socket\n     * @private\n     */\n    _destroy(socket) {\n        const nsps = Object.keys(this.nsps);\n        for (const nsp of nsps) {\n            const socket = this.nsps[nsp];\n            if (socket.active) {\n                return;\n            }\n        }\n        this._close();\n    }\n    /**\n     * Writes a packet.\n     *\n     * @param packet\n     * @private\n     */\n    _packet(packet) {\n        const encodedPackets = this.encoder.encode(packet);\n        for (let i = 0; i < encodedPackets.length; i++) {\n            this.engine.write(encodedPackets[i], packet.options);\n        }\n    }\n    /**\n     * Clean up transport subscriptions and packet buffer.\n     *\n     * @private\n     */\n    cleanup() {\n        this.subs.forEach((subDestroy) => subDestroy());\n        this.subs.length = 0;\n        this.decoder.destroy();\n    }\n    /**\n     * Close the current socket.\n     *\n     * @private\n     */\n    _close() {\n        this.skipReconnect = true;\n        this._reconnecting = false;\n        this.onclose(\"forced close\");\n        if (this.engine)\n            this.engine.close();\n    }\n    /**\n     * Alias for close()\n     *\n     * @private\n     */\n    disconnect() {\n        return this._close();\n    }\n    /**\n     * Called upon engine close.\n     *\n     * @private\n     */\n    onclose(reason, description) {\n        this.cleanup();\n        this.backoff.reset();\n        this._readyState = \"closed\";\n        this.emitReserved(\"close\", reason, description);\n        if (this._reconnection && !this.skipReconnect) {\n            this.reconnect();\n        }\n    }\n    /**\n     * Attempt a reconnection.\n     *\n     * @private\n     */\n    reconnect() {\n        if (this._reconnecting || this.skipReconnect)\n            return this;\n        const self = this;\n        if (this.backoff.attempts >= this._reconnectionAttempts) {\n            this.backoff.reset();\n            this.emitReserved(\"reconnect_failed\");\n            this._reconnecting = false;\n        }\n        else {\n            const delay = this.backoff.duration();\n            this._reconnecting = true;\n            const timer = this.setTimeoutFn(() => {\n                if (self.skipReconnect)\n                    return;\n                this.emitReserved(\"reconnect_attempt\", self.backoff.attempts);\n                // check again for the case socket closed in above events\n                if (self.skipReconnect)\n                    return;\n                self.open((err) => {\n                    if (err) {\n                        self._reconnecting = false;\n                        self.reconnect();\n                        this.emitReserved(\"reconnect_error\", err);\n                    }\n                    else {\n                        self.onreconnect();\n                    }\n                });\n            }, delay);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n    }\n    /**\n     * Called upon successful reconnect.\n     *\n     * @private\n     */\n    onreconnect() {\n        const attempt = this.backoff.attempts;\n        this._reconnecting = false;\n        this.backoff.reset();\n        this.emitReserved(\"reconnect\", attempt);\n    }\n}\n", "import { url } from \"./url.js\";\nimport { Manager } from \"./manager.js\";\nimport { Socket } from \"./socket.js\";\n/**\n * Managers cache.\n */\nconst cache = {};\nfunction lookup(uri, opts) {\n    if (typeof uri === \"object\") {\n        opts = uri;\n        uri = undefined;\n    }\n    opts = opts || {};\n    const parsed = url(uri, opts.path || \"/socket.io\");\n    const source = parsed.source;\n    const id = parsed.id;\n    const path = parsed.path;\n    const sameNamespace = cache[id] && path in cache[id][\"nsps\"];\n    const newConnection = opts.forceNew ||\n        opts[\"force new connection\"] ||\n        false === opts.multiplex ||\n        sameNamespace;\n    let io;\n    if (newConnection) {\n        io = new Manager(source, opts);\n    }\n    else {\n        if (!cache[id]) {\n            cache[id] = new Manager(source, opts);\n        }\n        io = cache[id];\n    }\n    if (parsed.query && !opts.query) {\n        opts.query = parsed.queryKey;\n    }\n    return io.socket(parsed.path, opts);\n}\n// so that \"lookup\" can be used both as a function (e.g. `io(...)`) and as a\n// namespace (e.g. `io.connect(...)`), for backward compatibility\nObject.assign(lookup, {\n    Manager,\n    Socket,\n    io: lookup,\n    connect: lookup,\n});\n/**\n * Protocol version.\n *\n * @public\n */\nexport { protocol } from \"socket.io-parser\";\n/**\n * Expose constructors for standalone build.\n *\n * @public\n */\nexport { Manager, Socket, lookup as io, lookup as connect, lookup as default, };\n"],
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+  "names": ["require_ui", "__commonJSMin", "exports", "module", "_a", "Ui", "win", "extLog", "jsonHighlight", "__publicField", "config", "notify", "resolve", "reject", "ev", "ui", "isRecurse", "compToAdd", "i", "newEl", "elParent", "el", "comp", "attrib", "type", "evt", "err", "prop", "parentEl", "components", "ns", "component", "__toESM", "__require", "script", "sheet", "msg", "all", "compToRemove", "els", "compToReplace", "elToReplace", "compToUpd", "elToUpd", "mdText", "opts", "str", "lang", "md", "url", "uiOptions", "response", "error", "contentType", "slot", "txtReturn", "data", "newScript", "textFn", "newStyle", "node", "cssSelector", "thisOut", "listEntries", "bodyEntries", "headEntries", "cols", "v", "permit", "html", "content", "toaster", "toast", "json", "propName", "selection", "out", "p", "key", "import_ui", "_UibVar", "__publicField", "attrib", "oldVal", "newVal", "val", "t", "UibVar", "PACKET_TYPES", "PACKET_TYPES_REVERSE", "key", "ERROR_PACKET", "withNativeBlob", "withNativeArrayBuffer", "isView", "obj", "encodePacket", "type", "data", "supportsBinary", "callback", "encodeBlobAsBase64", "PACKET_TYPES", "fileReader", "content", "toArray", "TEXT_ENCODER", "encodePacketToBinary", "packet", "encoded", "chars", "lookup", "i", "decode", "base64", "bufferLength", "len", "p", "encoded1", "encoded2", "encoded3", "encoded4", "arraybuffer", "bytes", "lookup", "withNativeArrayBuffer", "decodePacket", "encodedPacket", "binaryType", "mapBinary", "type", "decodeBase64Packet", "PACKET_TYPES_REVERSE", "ERROR_PACKET", "data", "decoded", "decode", "SEPARATOR", "encodePayload", "packets", "callback", "length", "encodedPackets", "count", "packet", "i", "encodePacket", "encodedPacket", "decodePayload", "encodedPayload", "binaryType", "decodedPacket", "decodePacket", "createPacketEncoderStream", "controller", "encodePacketToBinary", "payloadLength", "header", "view", "TEXT_DECODER", "totalLength", "chunks", "acc", "chunk", "concatChunks", "size", "buffer", "j", "createPacketDecoderStream", "maxPayload", "state", "expectedLength", "isBinary", "headerArray", "n", "ERROR_PACKET", "data", "protocol", "Emitter", "obj", "mixin", "key", "event", "fn", "on", "callbacks", "cb", "i", "args", "len", "globalThisShim", "pick", "obj", "attr", "acc", "k", "NATIVE_SET_TIMEOUT", "globalThisShim", "NATIVE_CLEAR_TIMEOUT", "installTimerFunctions", "opts", "BASE64_OVERHEAD", "byteLength", "utf8Length", "str", "c", "length", "l", "encode", "obj", "str", "i", "decode", "qs", "qry", "pairs", "l", "pair", "TransportError", "reason", "description", "context", "Transport", "Emitter", "opts", "installTimerFunctions", "packets", "data", "packet", "decodePacket", "details", "onPause", "schema", "query", "hostname", "encodedQuery", "encode", "alphabet", "length", "map", "seed", "i", "prev", "encode", "num", "encoded", "yeast", "now", "encode", "prev", "seed", "i", "length", "map", "alphabet", "value", "hasCORS", "XHR", "opts", "xdomain", "hasCORS", "globalThisShim", "empty", "hasXHR2", "XHR", "Polling", "Transport", "opts", "isSSL", "port", "forceBase64", "onPause", "pause", "total", "data", "callback", "packet", "decodePayload", "close", "packets", "encodePayload", "schema", "query", "yeast", "Request", "fn", "req", "xhrStatus", "context", "_Request", "Emitter", "uri", "installTimerFunctions", "_a", "pick", "xhr", "i", "e", "err", "fromError", "unloadHandler", "terminationEvent", "globalThisShim", "nextTick", "cb", "setTimeoutFn", "WebSocket", "globalThisShim", "usingBrowserWebSocket", "defaultBinaryType", "isReactNative", "WS", "Transport", "opts", "uri", "protocols", "pick", "usingBrowserWebSocket", "WebSocket", "err", "closeEvent", "ev", "packets", "i", "packet", "lastPacket", "encodePacket", "data", "nextTick", "schema", "query", "yeast", "WT", "Transport", "err", "stream", "decoderStream", "createPacketDecoderStream", "reader", "encoderStream", "createPacketEncoderStream", "read", "done", "value", "packet", "packets", "i", "lastPacket", 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"i", "l", "key", "deconstructPacket", "packet", "buffers", "packetData", "pack", "_deconstructPacket", "data", "isBinary", "placeholder", "newData", "key", "reconstructPacket", "_reconstructPacket", "i", "RESERVED_EVENTS", "protocol", "PacketType", "Encoder", "replacer", "obj", "hasBinary", "str", "deconstruction", "deconstructPacket", "pack", "buffers", "isObject", "value", "Decoder", "_Decoder", "Emitter", "reviver", "packet", "isBinaryEvent", "BinaryReconstructor", "isBinary", "i", "p", "start", "buf", "next", "c", "payload", "type", "binData", "reconstructPacket", "on", "obj", "ev", "fn", "RESERVED_EVENTS", "Socket", "Emitter", "io", "nsp", "opts", "on", "args", "ev", "packet", "PacketType", "id", "ack", "isTransportWritable", "_a", "timeout", "timer", "i", "withErr", "resolve", "reject", "arg1", "arg2", "err", "responseArgs", "force", "data", "reason", "description", "listeners", "listener", "self", "sent", "pid", "subDestroy", "compress", "Backoff", "opts", "ms", "rand", "deviation", "min", "max", "jitter", "Manager", "Emitter", "uri", "opts", "_a", "installTimerFunctions", "Backoff", "_parser", "esm_exports", "v", "fn", "Socket", "socket", "self", "openSubDestroy", "on", "onError", "err", "errorSub", "timeout", "timer", "data", "e", "packet", "nextTick", "nsp", "nsps", "encodedPackets", "subDestroy", "reason", "description", "delay", "attempt", "cache", "lookup", "uri", "opts", "parsed", "url", "source", "id", "path", "sameNamespace", "newConnection", "io", "Manager", "Socket", "version", "isMinified", "param", "logLevel", "LOG_STYLES", "log", "args", "level", "strLevel", "head", "makeMeAnObject", "thing", "property", "out", "urlJoin", "e", "syntaxHighlight", "json", "match", "cls", "_ui", "Ui", "_a", "_pingInterval", "_propChangeCallbacks", "_msgRecvdByTopicCallbacks", "_timerid", "_MsgHandler", "_isShowMsg", "_isShowStatus", "_sendUrlHash", "_extCommands", "_managedVars", "_showStatus", "_uiObservers", "Uib", "__publicField", "__privateAdd", "cb", "c", "splitC", "event", "__privateGet", "fullPath", "autoloadVars", "id", "prop", "val", "store", "autoload", "value", "autoVars", "title", "details", "callback", "nextCbRef", "propChangeCallback", "cbRef", "topic", "msgRecvdEvtCallback", "msg", "receivedMsg", "serverTimestamp", "offset", "cssSelector", "el", "originator", "ms", "oReq", "headers", "elapsedTime", "__privateSet", "varToCopy", "data", "exists", "url", "deflt", "ret", "toggle", "component", "mdText", "html", "textFn", "type", "ui", "propName", "uiOptions", "showHide", "parent", "slot", "config", "res", "err", "opts", "root", "entry", "startStop", "send", "showLog", "targetNode", "that", "mutationList", "mu", "oMu", "an", "i", "htmlCache", "msgToSend", "channel", "numMsgs", "domevent", "target", "props", "key", "ignoreAttribs", "attribs", "name", "form", "frmVals", "frmEl", "v", "classes", "payload", "nprops", "cmd", "quiet", "response", "info", "newUrl", "obj", "r", "receivedCtrlMsg", "txtToSend", "ioNamespace", "u", "t", "delay", "factor", "depth", "reason", "lookup", "options", "eMsg", "uibuilder", "uibuilder_module_default", "uibuilder", "UibVar"]
 }
diff --git a/nodes/libs/ui.js b/nodes/libs/ui.js
index 2d67f50d..ed78b9cb 100644
--- a/nodes/libs/ui.js
+++ b/nodes/libs/ui.js
@@ -35,210 +35,7 @@ const Ui = class Ui2 {
       this.syntaxHighlight = function() {
       };
   }
-  /** Directly manage UI via JSON
-   * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions
-   */
-  ui(json) {
-    let msg = {};
-    if (json._ui)
-      msg = json;
-    else
-      msg._ui = json;
-    this._uiManager(msg);
-  }
-  // TODO Add multi-slot
-  /** Replace or add an HTML element's slot from text or an HTML string
-   * Will use DOMPurify if that library has been loaded to window.
-   * param {*} ui Single entry from the msg._ui property
-   * @param {Element} el Reference to the element that we want to update
-   * @param {*} component The component we are trying to add/replace
-   */
-  replaceSlot(el, component) {
-    if (!component.slot)
-      return;
-    if (!el)
-      return;
-    if (this.window["DOMPurify"])
-      component.slot = this.window["DOMPurify"].sanitize(component.slot);
-    el.innerHTML = component.slot;
-  }
-  /** Converts markdown text input to HTML if the Markdown-IT library is loaded
-   * Otherwise simply returns the text
-   * @param {string} mdText The input markdown string
-   * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text
-   */
-  convertMarkdown(mdText) {
-    if (!mdText)
-      return "";
-    if (!this.window["markdownit"])
-      return mdText;
-    const opts = {
-      // eslint-disable-line object-shorthand
-      html: true,
-      linkify: true,
-      _highlight: true,
-      langPrefix: "language-",
-      highlight(str, lang) {
-        if (lang && this.window["hljs"] && this.window["hljs"].getLanguage(lang)) {
-          try {
-            return `<pre class="highlight" data-language="${lang.toUpperCase()}">
-                                <code class="language-${lang}">${this.window["hljs"].highlightAuto(str).value}</code></pre>`;
-          } finally {
-          }
-        }
-        return `<pre class="highlight"><code>${md.utils.escapeHtml(str)}</code></pre>`;
-      }
-    };
-    const md = this.window["markdownit"](opts);
-    return md.render(mdText);
-  }
-  /** Sanitise HTML to make it safe - if the DOMPurify library is loaded
-   * Otherwise just returns that HTML as-is.
-   * @param {string} html The input HTML string
-   * @returns {string} The sanitised HTML or the original if DOMPurify not loaded
-   */
-  sanitiseHTML(html) {
-    if (!this.window["DOMPurify"])
-      return html;
-    return this.window["DOMPurify"].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs });
-  }
-  /** Replace or add an HTML element's slot from a Markdown string
-   * Only does something if the markdownit library has been loaded to window.
-   * Will use DOMPurify if that library has been loaded to window.
-   * @param {Element} el Reference to the element that we want to update
-   * @param {*} component The component we are trying to add/replace
-   */
-  replaceSlotMarkdown(el, component) {
-    if (!el)
-      return;
-    if (!component.slotMarkdown)
-      return;
-    component.slotMarkdown = this.convertMarkdown(component.slotMarkdown);
-    component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown);
-    el.innerHTML = component.slotMarkdown;
-  }
-  /** Attach a new remote script to the end of HEAD synchronously
-   * NOTE: It takes too long for most scripts to finish loading
-   *       so this is pretty useless to work with the dynamic UI features directly.
-   * @param {string} url The url to be used in the script src attribute
-   */
-  loadScriptSrc(url) {
-    const newScript = this.document.createElement("script");
-    newScript.src = url;
-    newScript.async = false;
-    this.document.head.appendChild(newScript);
-  }
-  /** Attach a new remote stylesheet link to the end of HEAD synchronously
-   * NOTE: It takes too long for most scripts to finish loading
-   *       so this is pretty useless to work with the dynamic UI features directly.
-   * @param {string} url The url to be used in the style link href attribute
-   */
-  loadStyleSrc(url) {
-    const newStyle = this.document.createElement("link");
-    newStyle.href = url;
-    newStyle.rel = "stylesheet";
-    newStyle.type = "text/css";
-    this.document.head.appendChild(newStyle);
-  }
-  /** Attach a new text script to the end of HEAD synchronously
-   * NOTE: It takes too long for most scripts to finish loading
-   *       so this is pretty useless to work with the dynamic UI features directly.
-   * @param {string} textFn The text to be loaded as a script
-   */
-  loadScriptTxt(textFn) {
-    const newScript = this.document.createElement("script");
-    newScript.async = false;
-    newScript.textContent = textFn;
-    this.document.head.appendChild(newScript);
-  }
-  /** Attach a new text stylesheet to the end of HEAD synchronously
-   * NOTE: It takes too long for most scripts to finish loading
-   *       so this is pretty useless to work with the dynamic UI features directly.
-   * @param {string} textFn The text to be loaded as a stylesheet
-   */
-  loadStyleTxt(textFn) {
-    const newStyle = this.document.createElement("style");
-    newStyle.textContent = textFn;
-    this.document.head.appendChild(newStyle);
-  }
-  /** Show a pop-over "toast" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen
-   * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,
-   *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,
-   *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/
-   * @param {"notify"|"alert"} type Dialog type
-   * @param {object} ui standardised ui data
-   * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.
-   * @returns {void}
-   */
-  showDialog(type, ui, msg) {
-    let content = "";
-    if (msg.payload && typeof msg.payload === "string")
-      content += msg.payload;
-    if (ui.content)
-      content += ui.content;
-    if (content === "") {
-      Ui2.log(1, "Ui:showDialog", "Toast content is blank. Not shown.")();
-      return;
-    }
-    if (!ui.title && msg.topic)
-      ui.title = msg.topic;
-    if (ui.title)
-      content = `<p class="toast-head">${ui.title}</p><p>${content}</p>`;
-    if (ui.noAutohide)
-      ui.noAutoHide = ui.noAutohide;
-    if (ui.noAutoHide)
-      ui.autohide = !ui.noAutoHide;
-    if (ui.autoHideDelay) {
-      if (!ui.autohide)
-        ui.autohide = true;
-      ui.delay = ui.autoHideDelay;
-    } else
-      ui.autoHideDelay = 1e4;
-    if (!Object.prototype.hasOwnProperty.call(ui, "autohide"))
-      ui.autohide = true;
-    if (type === "alert") {
-      ui.modal = true;
-      ui.autohide = false;
-      content = `<svg viewBox="0 0 192.146 192.146" style="width:30;background-color:transparent;"><path d="M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z" /></svg> ${content}`;
-    }
-    let toaster = this.document.getElementById("toaster");
-    if (toaster === null) {
-      toaster = this.document.createElement("div");
-      toaster.id = "toaster";
-      toaster.title = "Click to clear all notifcations";
-      toaster.setAttribute("class", "toaster");
-      toaster.setAttribute("role", "dialog");
-      toaster.setAttribute("arial-label", "Toast message");
-      toaster.onclick = function() {
-        toaster.remove();
-      };
-      this.document.body.insertAdjacentElement("afterbegin", toaster);
-    }
-    const toast = this.document.createElement("div");
-    toast.title = "Click to clear this notifcation";
-    toast.setAttribute("class", `toast ${ui.variant ? ui.variant : ""} ${type}`);
-    toast.innerHTML = content;
-    toast.setAttribute("role", "alertdialog");
-    if (ui.modal)
-      toast.setAttribute("aria-modal", ui.modal);
-    toast.onclick = function(evt) {
-      evt.stopPropagation();
-      toast.remove();
-      if (toaster.childElementCount < 1)
-        toaster.remove();
-    };
-    if (type === "alert") {
-    }
-    toaster.insertAdjacentElement(ui.appendToast === true ? "beforeend" : "afterbegin", toast);
-    if (ui.autohide === true) {
-      setInterval(() => {
-        toast.remove();
-        if (toaster.childElementCount < 1)
-          toaster.remove();
-      }, ui.autoHideDelay);
-    }
-  }
-  // --- End of showDialog ---
+  //#region ---- Internal Methods ----
   /** Show a browser notification if the browser and the user allows it
    * @param {object} config Notification config data
    * @returns {Promise} Resolves on close or click event, returns the event.
@@ -272,74 +69,81 @@ const Ui = class Ui2 {
       return Promise.reject(new Error("Browser refused to create a Notification"));
     }
   }
-  /** Show a browser notification if possible. Returns a promise
-   * Config can be a simple string, a Node-RED msg (topic as title, payload as body)
-   * or a Notifications API options object + config.title string.
-   * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification
-   * @param {object|string} config Notification config object or simple message string
-   * @returns {Promise} Resolves on close or click event, returns the event.
-   */
-  async notification(config) {
-    if (typeof config === "string") {
-      config = { body: config };
-    }
-    if (typeof Notification === "undefined")
-      return Promise.reject(new Error("Notifications not available in this browser"));
-    let permit = Notification.permission;
-    if (permit === "denied") {
-      return Promise.reject(new Error("Notifications not permitted by user"));
-    } else if (permit === "granted") {
-      return this._showNotification(config);
-    } else {
-      permit = await Notification.requestPermission();
-      if (permit === "granted") {
-        return this._showNotification(config);
-      }
-      return Promise.reject(new Error("Notifications not permitted by user"));
-    }
-  }
-  /** Load a dynamic UI from a JSON web reponse
-   * @param {string} url URL that will return the ui JSON
+  // Vue dynamic inserts Don't really work ...
+  // _uiAddVue(ui, isRecurse) {
+  //     // must be Vue
+  //     // must have only 1 root element
+  //     const compToAdd = ui.components[0]
+  //     const newEl = this.document.createElement(compToAdd.type)
+  //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload
+  //     this._uiComposeComponent(newEl, compToAdd)
+  //     // If nested components, go again - but don't pass payload to sub-components
+  //     if (compToAdd.components) {
+  //         this._uiExtendEl(newEl, compToAdd.components)
+  //     }
+  //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()
+  //     this.set('magick', newEl.outerHTML)
+  //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)
+  //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)
+  // }
+  // TODO Add check if ID already exists
+  // TODO Allow single add without using components array
+  /** Handle incoming msg._ui add requests
+   * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object
+   * @param {boolean} isRecurse Is this a recursive call?
    */
-  loadui(url) {
-    if (!fetch) {
-      Ui2.log(0, "Ui:loadui", "Current environment does not include `fetch`, skipping.")();
-      return;
-    }
-    if (!url) {
-      Ui2.log(0, "Ui:loadui", "url parameter must be provided, skipping.")();
-      return;
-    }
-    fetch(url).then((response) => {
-      if (response.ok === false) {
-        throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`);
+  _uiAdd(ui, isRecurse) {
+    Ui2.log("trace", "Ui:_uiManager:add", "Starting _uiAdd")();
+    ui.components.forEach((compToAdd, i) => {
+      Ui2.log("trace", `Ui:_uiAdd:components-forEach:${i}`, "Component to add: ", compToAdd)();
+      let newEl;
+      switch (compToAdd.type) {
+        case "html": {
+          compToAdd.ns = "html";
+          newEl = this.document.createElement("div");
+          break;
+        }
+        case "svg": {
+          compToAdd.ns = "svg";
+          newEl = this.document.createElementNS("http://www.w3.org/2000/svg", "svg");
+          break;
+        }
+        default: {
+          compToAdd.ns = "dom";
+          newEl = this.document.createElement(compToAdd.type);
+          break;
+        }
       }
-      Ui2.log("trace", "Ui:loadui:then1", `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)();
-      const contentType = response.headers.get("content-type");
-      if (!contentType || !contentType.includes("application/json")) {
-        throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`);
+      if (!compToAdd.slot && ui.payload)
+        compToAdd.slot = ui.payload;
+      this._uiComposeComponent(newEl, compToAdd);
+      let elParent;
+      if (compToAdd.parentEl) {
+        elParent = compToAdd.parentEl;
+      } else if (ui.parentEl) {
+        elParent = ui.parentEl;
+      } else if (compToAdd.parent) {
+        elParent = this.document.querySelector(compToAdd.parent);
+      } else if (ui.parent) {
+        elParent = this.document.querySelector(ui.parent);
       }
-      return response.json();
-    }).then((data) => {
-      if (data !== void 0) {
-        Ui2.log("trace", "Ui:loadui:then2", "Parsed JSON successfully obtained")();
-        this._uiManager({ _ui: data });
-        return true;
+      if (!elParent) {
+        Ui2.log("info", "Ui:_uiAdd", "No parent found, adding to body")();
+        elParent = this.document.querySelector("body");
+      }
+      if (compToAdd.position && compToAdd.position === "first") {
+        elParent.insertBefore(newEl, elParent.firstChild);
+      } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {
+        elParent.insertBefore(newEl, elParent.children[compToAdd.position]);
+      } else {
+        elParent.appendChild(newEl);
+      }
+      if (compToAdd.components) {
+        this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns);
       }
-      return false;
-    }).catch((err) => {
-      Ui2.log("warn", "Ui:loadui:catch", "Error. ", err)();
     });
   }
-  // --- end of loadui
-  // Namespaces - See https://stackoverflow.com/a/52572048/1309986
-  // const NAMESPACES = {
-  //     svg: 'http://www.w3.org/2000/svg',
-  //     html: 'http://www.w3.org/1999/xhtml',
-  //     xml: 'http://www.w3.org/XML/1998/namespace',
-  //     xlink: 'http://www.w3.org/1999/xlink',
-  //     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...
-  // }
+  // --- end of _uiAdd ---
   /** Enhance an HTML element that is being composed with ui data
    *  such as ID, attribs, event handlers, custom props, etc.
    * @param {*} el HTML Element to enhance
@@ -348,6 +152,8 @@ const Ui = class Ui2 {
   _uiComposeComponent(el, comp) {
     if (comp.attributes) {
       Object.keys(comp.attributes).forEach((attrib) => {
+        if (attrib === "class" && Array.isArray(comp.attributes[attrib]))
+          comp.attributes[attrib].join(" ");
         if (attrib === "value")
           el.value = comp.attributes[attrib];
         if (attrib.startsWith("xlink:"))
@@ -422,81 +228,111 @@ const Ui = class Ui2 {
       }
     });
   }
-  // Vue dynamic inserts Don't really work ...
-  // _uiAddVue(ui, isRecurse) {
-  //     // must be Vue
-  //     // must have only 1 root element
-  //     const compToAdd = ui.components[0]
-  //     const newEl = this.document.createElement(compToAdd.type)
-  //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload
-  //     this._uiComposeComponent(newEl, compToAdd)
-  //     // If nested components, go again - but don't pass payload to sub-components
-  //     if (compToAdd.components) {
-  //         this._uiExtendEl(newEl, compToAdd.components)
-  //     }
-  //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()
-  //     this.set('magick', newEl.outerHTML)
-  //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)
-  //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)
-  // }
-  // TODO Add check if ID already exists
-  // TODO Allow single add without using components array
-  /** Handle incoming msg._ui add requests
+  // TODO Add more error handling and parameter validation
+  /** Handle incoming _ui load requests
+   * Can load JavaScript modules, JavaScript scripts and CSS.
    * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object
-   * @param {boolean} isRecurse Is this a recursive call?
    */
-  _uiAdd(ui, isRecurse) {
-    Ui2.log("trace", "Ui:_uiManager:add", "Starting _uiAdd")();
-    ui.components.forEach((compToAdd, i) => {
-      Ui2.log("trace", `Ui:_uiAdd:components-forEach:${i}`, "Component to add: ", compToAdd)();
-      let newEl;
-      switch (compToAdd.type) {
-        case "html": {
-          compToAdd.ns = "html";
-          newEl = this.document.createElement("div");
+  _uiLoad(ui) {
+    if (ui.components) {
+      if (!Array.isArray(ui.components))
+        ui.components = [ui.components];
+      ui.components.forEach(async (component) => {
+        await import(component);
+      });
+    }
+    if (ui.srcScripts) {
+      if (!Array.isArray(ui.srcScripts))
+        ui.srcScripts = [ui.srcScripts];
+      ui.srcScripts.forEach((script) => {
+        this.loadScriptSrc(script);
+      });
+    }
+    if (ui.txtScripts) {
+      if (!Array.isArray(ui.txtScripts))
+        ui.txtScripts = [ui.txtScripts];
+      this.loadScriptTxt(ui.txtScripts.join("\n"));
+    }
+    if (ui.srcStyles) {
+      if (!Array.isArray(ui.srcStyles))
+        ui.srcStyles = [ui.srcStyles];
+      ui.srcStyles.forEach((sheet) => {
+        this.loadStyleSrc(sheet);
+      });
+    }
+    if (ui.txtStyles) {
+      if (!Array.isArray(ui.txtStyles))
+        ui.txtStyles = [ui.txtStyles];
+      this.loadStyleTxt(ui.txtStyles.join("\n"));
+    }
+  }
+  // --- end of _uiLoad ---
+  /** Handle incoming _ui messages and loaded UI JSON files
+   * Called from start()
+   * @param {*} msg Standardised msg object containing a _ui property object
+   */
+  _uiManager(msg) {
+    if (!msg._ui)
+      return;
+    if (!Array.isArray(msg._ui))
+      msg._ui = [msg._ui];
+    msg._ui.forEach((ui, i) => {
+      if (!ui.method) {
+        Ui2.log("error", "Ui:_uiManager", `No method defined for msg._ui[${i}]. Ignoring`)();
+        return;
+      }
+      ui.payload = msg.payload;
+      ui.topic = msg.topic;
+      switch (ui.method) {
+        case "add": {
+          this._uiAdd(ui, false);
           break;
         }
-        case "svg": {
-          compToAdd.ns = "svg";
-          newEl = this.document.createElementNS("http://www.w3.org/2000/svg", "svg");
+        case "remove": {
+          this._uiRemove(ui, false);
+          break;
+        }
+        case "removeAll": {
+          this._uiRemove(ui, true);
+          break;
+        }
+        case "replace": {
+          this._uiReplace(ui);
+          break;
+        }
+        case "update": {
+          this._uiUpdate(ui);
+          break;
+        }
+        case "load": {
+          this._uiLoad(ui);
+          break;
+        }
+        case "reload": {
+          this._uiReload();
+          break;
+        }
+        case "notify": {
+          this.showDialog("notify", ui, msg);
+          break;
+        }
+        case "alert": {
+          this.showDialog("alert", ui, msg);
           break;
         }
         default: {
-          compToAdd.ns = "dom";
-          newEl = this.document.createElement(compToAdd.type);
+          Ui2.log("error", "Ui:_uiManager", `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)();
           break;
         }
       }
-      if (!compToAdd.slot && ui.payload)
-        compToAdd.slot = ui.payload;
-      this._uiComposeComponent(newEl, compToAdd);
-      let elParent;
-      if (compToAdd.parentEl) {
-        elParent = compToAdd.parentEl;
-      } else if (ui.parentEl) {
-        elParent = ui.parentEl;
-      } else if (compToAdd.parent) {
-        elParent = this.document.querySelector(compToAdd.parent);
-      } else if (ui.parent) {
-        elParent = this.document.querySelector(ui.parent);
-      }
-      if (!elParent) {
-        Ui2.log("info", "Ui:_uiAdd", "No parent found, adding to body")();
-        elParent = this.document.querySelector("body");
-      }
-      if (compToAdd.position && compToAdd.position === "first") {
-        elParent.insertBefore(newEl, elParent.firstChild);
-      } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {
-        elParent.insertBefore(newEl, elParent.children[compToAdd.position]);
-      } else {
-        elParent.appendChild(newEl);
-      }
-      if (compToAdd.components) {
-        this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns);
-      }
     });
   }
-  // --- end of _uiAdd ---
+  // --- end of _uiManager ---
+  /** Handle a reload request */
+  _uiReload() {
+    Ui2.log("trace", "Ui:uiManager:reload", "reloading")();
+    location.reload();
+  }
   // TODO Add better tests for failures (see comments)
   /** Handle incoming _ui remove requests
    * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object
@@ -613,182 +449,463 @@ const Ui = class Ui2 {
     });
   }
   // --- end of _uiUpdate ---
-  // TODO Add more error handling and parameter validation
-  /** Handle incoming _ui load requests
-   * Can load JavaScript modules, JavaScript scripts and CSS.
-   * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object
+  //#endregion ---- -------- ----
+  //#region ---- External Methods ----
+  /** Converts markdown text input to HTML if the Markdown-IT library is loaded
+   * Otherwise simply returns the text
+   * @param {string} mdText The input markdown string
+   * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text
    */
-  _uiLoad(ui) {
-    if (ui.components) {
-      if (!Array.isArray(ui.components))
-        ui.components = [ui.components];
-      ui.components.forEach(async (component) => {
-        await import(component);
-      });
-    }
-    if (ui.srcScripts) {
-      if (!Array.isArray(ui.srcScripts))
-        ui.srcScripts = [ui.srcScripts];
-      ui.srcScripts.forEach((script) => {
-        this.loadScriptSrc(script);
-      });
-    }
-    if (ui.txtScripts) {
-      if (!Array.isArray(ui.txtScripts))
-        ui.txtScripts = [ui.txtScripts];
-      this.loadScriptTxt(ui.txtScripts.join("\n"));
-    }
-    if (ui.srcStyles) {
-      if (!Array.isArray(ui.srcStyles))
-        ui.srcStyles = [ui.srcStyles];
-      ui.srcStyles.forEach((sheet) => {
-        this.loadStyleSrc(sheet);
-      });
+  convertMarkdown(mdText) {
+    if (!mdText)
+      return "";
+    if (!this.window["markdownit"])
+      return mdText;
+    const opts = {
+      // eslint-disable-line object-shorthand
+      html: true,
+      linkify: true,
+      _highlight: true,
+      langPrefix: "language-",
+      highlight(str, lang) {
+        if (lang && this.window["hljs"] && this.window["hljs"].getLanguage(lang)) {
+          try {
+            return `<pre class="highlight" data-language="${lang.toUpperCase()}">
+                                <code class="language-${lang}">${this.window["hljs"].highlightAuto(str).value}</code></pre>`;
+          } finally {
+          }
+        }
+        return `<pre class="highlight"><code>${md.utils.escapeHtml(str)}</code></pre>`;
+      }
+    };
+    const md = this.window["markdownit"](opts);
+    return md.render(mdText);
+  }
+  /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API
+   * Wraps the included object in a div tag.
+   * PDF's, text or unknown MIME types are also wrapped in an iFrame.
+   * @param {string} url The URL of the source file to include
+   * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id
+   * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag
+   * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')
+   * @returns {Promise<any>} Status
+   */
+  async include(url, uiOptions) {
+    if (!fetch) {
+      Ui2.log(0, "Ui:include", "Current environment does not include `fetch`, skipping.")();
+      return "Current environment does not include `fetch`, skipping.";
     }
-    if (ui.txtStyles) {
-      if (!Array.isArray(ui.txtStyles))
-        ui.txtStyles = [ui.txtStyles];
-      this.loadStyleTxt(ui.txtStyles.join("\n"));
+    if (!url) {
+      Ui2.log(0, "Ui:include", "url parameter must be provided, skipping.")();
+      return "url parameter must be provided, skipping.";
+    }
+    if (!uiOptions || !uiOptions.id) {
+      Ui2.log(0, "Ui:include", "uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.")();
+      return "uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.";
+    }
+    let response;
+    try {
+      response = await fetch(url);
+    } catch (error) {
+      Ui2.log(0, "Ui:include", `Fetch of file '${url}' failed. `, error.message)();
+      return error.message;
+    }
+    if (!response.ok) {
+      Ui2.log(0, "Ui:include", `Fetch of file '${url}' failed. Status='${response.statusText}'`)();
+      return response.statusText;
+    }
+    const contentType = await response.headers.get("content-type");
+    let type = null;
+    if (contentType) {
+      if (contentType.includes("text/html")) {
+        type = "html";
+      } else if (contentType.includes("application/json")) {
+        type = "json";
+      } else if (contentType.includes("multipart/form-data")) {
+        type = "form";
+      } else if (contentType.includes("image/")) {
+        type = "image";
+      } else if (contentType.includes("video/")) {
+        type = "video";
+      } else if (contentType.includes("application/pdf")) {
+        type = "pdf";
+      } else if (contentType.includes("text/plain")) {
+        type = "text";
+      }
+    }
+    let slot = "";
+    let txtReturn = "Include successful";
+    let data;
+    switch (type) {
+      case "html": {
+        data = await response.text();
+        slot = data;
+        break;
+      }
+      case "json": {
+        data = await response.json();
+        slot = '<pre class="syntax-highlight">';
+        slot += this.syntaxHighlight(data);
+        slot += "</pre>";
+        break;
+      }
+      case "form": {
+        data = await response.formData();
+        slot = '<pre class="syntax-highlight">';
+        slot += this.syntaxHighlight(data);
+        slot += "</pre>";
+        break;
+      }
+      case "image": {
+        data = await response.blob();
+        slot = `<img src="${URL.createObjectURL(data)}">`;
+        if (this.window["DOMPurify"]) {
+          txtReturn = "Include successful. BUT DOMPurify loaded which may block its use.";
+          Ui2.log("warn", "Ui:include:image", txtReturn)();
+        }
+        break;
+      }
+      case "video": {
+        data = await response.blob();
+        slot = `<video controls autoplay><source src="${URL.createObjectURL(data)}"></video>`;
+        if (this.window["DOMPurify"]) {
+          txtReturn = "Include successful. BUT DOMPurify loaded which may block its use.";
+          Ui2.log("warn", "Ui:include:video", txtReturn)();
+        }
+        break;
+      }
+      case "pdf":
+      case "text":
+      default: {
+        data = await response.blob();
+        slot = `<iframe style="resize:both;width:inherit;height:inherit;" src="${URL.createObjectURL(data)}">`;
+        if (this.window["DOMPurify"]) {
+          txtReturn = "Include successful. BUT DOMPurify loaded which may block its use.";
+          Ui2.log("warn", `Ui:include:${type}`, txtReturn)();
+        }
+        break;
+      }
     }
+    uiOptions.type = "div";
+    uiOptions.slot = slot;
+    if (!uiOptions.parent)
+      uiOptions.parent = "body";
+    if (!uiOptions.attributes)
+      uiOptions.attributes = { class: "included" };
+    this._uiReplace({
+      components: [
+        uiOptions
+      ]
+    });
+    Ui2.log("trace", `Ui:include:${type}`, txtReturn)();
+    return txtReturn;
   }
-  // --- end of _uiLoad ---
-  /** Handle a reload request */
-  _uiReload() {
-    Ui2.log("trace", "Ui:uiManager:reload", "reloading")();
-    location.reload();
+  // ---- End of include() ---- //
+  /** Attach a new remote script to the end of HEAD synchronously
+   * NOTE: It takes too long for most scripts to finish loading
+   *       so this is pretty useless to work with the dynamic UI features directly.
+   * @param {string} url The url to be used in the script src attribute
+   */
+  loadScriptSrc(url) {
+    const newScript = this.document.createElement("script");
+    newScript.src = url;
+    newScript.async = false;
+    this.document.head.appendChild(newScript);
   }
-  /** Handle incoming _ui messages and loaded UI JSON files
-   * Called from start()
-   * @param {*} msg Standardised msg object containing a _ui property object
+  /** Attach a new text script to the end of HEAD synchronously
+   * NOTE: It takes too long for most scripts to finish loading
+   *       so this is pretty useless to work with the dynamic UI features directly.
+   * @param {string} textFn The text to be loaded as a script
    */
-  _uiManager(msg) {
-    if (!msg._ui)
+  loadScriptTxt(textFn) {
+    const newScript = this.document.createElement("script");
+    newScript.async = false;
+    newScript.textContent = textFn;
+    this.document.head.appendChild(newScript);
+  }
+  /** Attach a new remote stylesheet link to the end of HEAD synchronously
+   * NOTE: It takes too long for most scripts to finish loading
+   *       so this is pretty useless to work with the dynamic UI features directly.
+   * @param {string} url The url to be used in the style link href attribute
+   */
+  loadStyleSrc(url) {
+    const newStyle = this.document.createElement("link");
+    newStyle.href = url;
+    newStyle.rel = "stylesheet";
+    newStyle.type = "text/css";
+    this.document.head.appendChild(newStyle);
+  }
+  /** Attach a new text stylesheet to the end of HEAD synchronously
+   * NOTE: It takes too long for most scripts to finish loading
+   *       so this is pretty useless to work with the dynamic UI features directly.
+   * @param {string} textFn The text to be loaded as a stylesheet
+   */
+  loadStyleTxt(textFn) {
+    const newStyle = this.document.createElement("style");
+    newStyle.textContent = textFn;
+    this.document.head.appendChild(newStyle);
+  }
+  /** Load a dynamic UI from a JSON web reponse
+   * @param {string} url URL that will return the ui JSON
+   */
+  loadui(url) {
+    if (!fetch) {
+      Ui2.log(0, "Ui:loadui", "Current environment does not include `fetch`, skipping.")();
       return;
-    if (!Array.isArray(msg._ui))
-      msg._ui = [msg._ui];
-    msg._ui.forEach((ui, i) => {
-      if (!ui.method) {
-        Ui2.log("error", "Ui:_uiManager", `No method defined for msg._ui[${i}]. Ignoring`)();
-        return;
+    }
+    if (!url) {
+      Ui2.log(0, "Ui:loadui", "url parameter must be provided, skipping.")();
+      return;
+    }
+    fetch(url).then((response) => {
+      if (response.ok === false) {
+        throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`);
       }
-      ui.payload = msg.payload;
-      ui.topic = msg.topic;
-      switch (ui.method) {
-        case "add": {
-          this._uiAdd(ui, false);
-          break;
-        }
-        case "remove": {
-          this._uiRemove(ui, false);
-          break;
-        }
-        case "removeAll": {
-          this._uiRemove(ui, true);
-          break;
-        }
-        case "replace": {
-          this._uiReplace(ui);
-          break;
-        }
-        case "update": {
-          this._uiUpdate(ui);
-          break;
-        }
-        case "load": {
-          this._uiLoad(ui);
-          break;
-        }
-        case "reload": {
-          this._uiReload();
-          break;
-        }
-        case "notify": {
-          this.showDialog("notify", ui, msg);
-          break;
-        }
-        case "alert": {
-          this.showDialog("alert", ui, msg);
-          break;
-        }
-        default: {
-          Ui2.log("error", "Ui:_uiManager", `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)();
-          break;
-        }
+      Ui2.log("trace", "Ui:loadui:then1", `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)();
+      const contentType = response.headers.get("content-type");
+      if (!contentType || !contentType.includes("application/json")) {
+        throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`);
+      }
+      return response.json();
+    }).then((data) => {
+      if (data !== void 0) {
+        Ui2.log("trace", "Ui:loadui:then2", "Parsed JSON successfully obtained")();
+        this._uiManager({ _ui: data });
+        return true;
       }
+      return false;
+    }).catch((err) => {
+      Ui2.log("warn", "Ui:loadui:catch", "Error. ", err)();
     });
   }
-  // --- end of _uiManager ---
+  // --- end of loadui
   /** Get standard data from a DOM node.
    * @param {*} node DOM node to examine
    * @param {string} cssSelector Identify the DOM element to get data from
    * @returns {object} Standardised data object
    */
-  nodeGet(node, cssSelector) {
-    const thisOut = {
-      id: node.id === "" ? void 0 : node.id,
-      name: node.name,
-      children: node.childNodes.length,
-      type: node.nodeName,
-      attributes: void 0,
-      isUserInput: node.validity ? true : false,
-      // eslint-disable-line no-unneeded-ternary
-      userInput: !node.validity ? void 0 : {
-        // eslint-disable-line multiline-ternary
-        value: node.value,
-        validity: void 0,
-        willValidate: node.willValidate,
-        valueAsDate: node.valueAsDate,
-        valueAsNumber: node.valueAsNumber,
-        type: node.type
-      }
-    };
-    if (["UL", "OL"].includes(node.nodeName)) {
-      const listEntries = this.document.querySelectorAll(`${cssSelector} li`);
-      if (listEntries) {
-        thisOut.list = {
-          "entries": listEntries.length
-        };
-      }
-    }
-    if (node.nodeName === "DL") {
-      const listEntries = this.document.querySelectorAll(`${cssSelector} dt`);
-      if (listEntries) {
-        thisOut.list = {
-          "entries": listEntries.length
-        };
-      }
+  nodeGet(node, cssSelector) {
+    const thisOut = {
+      id: node.id === "" ? void 0 : node.id,
+      name: node.name,
+      children: node.childNodes.length,
+      type: node.nodeName,
+      attributes: void 0,
+      isUserInput: node.validity ? true : false,
+      // eslint-disable-line no-unneeded-ternary
+      userInput: !node.validity ? void 0 : {
+        // eslint-disable-line multiline-ternary
+        value: node.value,
+        validity: void 0,
+        willValidate: node.willValidate,
+        valueAsDate: node.valueAsDate,
+        valueAsNumber: node.valueAsNumber,
+        type: node.type
+      }
+    };
+    if (["UL", "OL"].includes(node.nodeName)) {
+      const listEntries = this.document.querySelectorAll(`${cssSelector} li`);
+      if (listEntries) {
+        thisOut.list = {
+          "entries": listEntries.length
+        };
+      }
+    }
+    if (node.nodeName === "DL") {
+      const listEntries = this.document.querySelectorAll(`${cssSelector} dt`);
+      if (listEntries) {
+        thisOut.list = {
+          "entries": listEntries.length
+        };
+      }
+    }
+    if (node.nodeName === "TABLE") {
+      const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`);
+      const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`);
+      const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`);
+      if (bodyEntries || headEntries || cols) {
+        thisOut.table = {
+          "headRows": headEntries ? headEntries.length : 0,
+          "bodyRows": bodyEntries ? bodyEntries.length : 0,
+          "columns": cols ? cols.length : 0
+        };
+      }
+    }
+    if (node.nodeName !== "#text" && node.attributes && node.attributes.length > 0) {
+      thisOut.attributes = {};
+      for (const attrib of node.attributes) {
+        if (attrib.name !== "id") {
+          thisOut.attributes[attrib.name] = node.attributes[attrib.name].value;
+        }
+      }
+    }
+    if (node.nodeName === "#text") {
+      thisOut.text = node.textContent;
+    }
+    if (node.validity)
+      thisOut.userInput.validity = {};
+    for (const v in node.validity) {
+      thisOut.userInput.validity[v] = node.validity[v];
+    }
+    return thisOut;
+  }
+  // --- end of nodeGet --- //
+  /** Show a browser notification if possible. Returns a promise
+   * Config can be a simple string, a Node-RED msg (topic as title, payload as body)
+   * or a Notifications API options object + config.title string.
+   * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification
+   * @param {object|string} config Notification config object or simple message string
+   * @returns {Promise} Resolves on close or click event, returns the event.
+   */
+  async notification(config) {
+    if (typeof config === "string") {
+      config = { body: config };
+    }
+    if (typeof Notification === "undefined")
+      return Promise.reject(new Error("Notifications not available in this browser"));
+    let permit = Notification.permission;
+    if (permit === "denied") {
+      return Promise.reject(new Error("Notifications not permitted by user"));
+    } else if (permit === "granted") {
+      return this._showNotification(config);
+    } else {
+      permit = await Notification.requestPermission();
+      if (permit === "granted") {
+        return this._showNotification(config);
+      }
+      return Promise.reject(new Error("Notifications not permitted by user"));
+    }
+  }
+  // TODO Add multi-slot
+  /** Replace or add an HTML element's slot from text or an HTML string
+   * Will use DOMPurify if that library has been loaded to window.
+   * param {*} ui Single entry from the msg._ui property
+   * @param {Element} el Reference to the element that we want to update
+   * @param {*} component The component we are trying to add/replace
+   */
+  replaceSlot(el, component) {
+    if (!component.slot)
+      return;
+    if (!el)
+      return;
+    if (this.window["DOMPurify"])
+      component.slot = this.window["DOMPurify"].sanitize(component.slot);
+    el.innerHTML = component.slot;
+  }
+  /** Replace or add an HTML element's slot from a Markdown string
+   * Only does something if the markdownit library has been loaded to window.
+   * Will use DOMPurify if that library has been loaded to window.
+   * @param {Element} el Reference to the element that we want to update
+   * @param {*} component The component we are trying to add/replace
+   */
+  replaceSlotMarkdown(el, component) {
+    if (!el)
+      return;
+    if (!component.slotMarkdown)
+      return;
+    component.slotMarkdown = this.convertMarkdown(component.slotMarkdown);
+    component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown);
+    el.innerHTML = component.slotMarkdown;
+  }
+  /** Sanitise HTML to make it safe - if the DOMPurify library is loaded
+   * Otherwise just returns that HTML as-is.
+   * @param {string} html The input HTML string
+   * @returns {string} The sanitised HTML or the original if DOMPurify not loaded
+   */
+  sanitiseHTML(html) {
+    if (!this.window["DOMPurify"])
+      return html;
+    return this.window["DOMPurify"].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs });
+  }
+  /** Show a pop-over "toast" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen
+   * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,
+   *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,
+   *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/
+   * @param {"notify"|"alert"} type Dialog type
+   * @param {object} ui standardised ui data
+   * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.
+   * @returns {void}
+   */
+  showDialog(type, ui, msg) {
+    let content = "";
+    if (msg.payload && typeof msg.payload === "string")
+      content += msg.payload;
+    if (ui.content)
+      content += ui.content;
+    if (content === "") {
+      Ui2.log(1, "Ui:showDialog", "Toast content is blank. Not shown.")();
+      return;
     }
-    if (node.nodeName === "TABLE") {
-      const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`);
-      const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`);
-      const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`);
-      if (bodyEntries || headEntries || cols) {
-        thisOut.table = {
-          "headRows": headEntries ? headEntries.length : 0,
-          "bodyRows": bodyEntries ? bodyEntries.length : 0,
-          "columns": cols ? cols.length : 0
-        };
-      }
+    if (!ui.title && msg.topic)
+      ui.title = msg.topic;
+    if (ui.title)
+      content = `<p class="toast-head">${ui.title}</p><p>${content}</p>`;
+    if (ui.noAutohide)
+      ui.noAutoHide = ui.noAutohide;
+    if (ui.noAutoHide)
+      ui.autohide = !ui.noAutoHide;
+    if (ui.autoHideDelay) {
+      if (!ui.autohide)
+        ui.autohide = true;
+      ui.delay = ui.autoHideDelay;
+    } else
+      ui.autoHideDelay = 1e4;
+    if (!Object.prototype.hasOwnProperty.call(ui, "autohide"))
+      ui.autohide = true;
+    if (type === "alert") {
+      ui.modal = true;
+      ui.autohide = false;
+      content = `<svg viewBox="0 0 192.146 192.146" style="width:30;background-color:transparent;"><path d="M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z" /></svg> ${content}`;
     }
-    if (node.nodeName !== "#text" && node.attributes && node.attributes.length > 0) {
-      thisOut.attributes = {};
-      for (const attrib of node.attributes) {
-        if (attrib.name !== "id") {
-          thisOut.attributes[attrib.name] = node.attributes[attrib.name].value;
-        }
-      }
+    let toaster = this.document.getElementById("toaster");
+    if (toaster === null) {
+      toaster = this.document.createElement("div");
+      toaster.id = "toaster";
+      toaster.title = "Click to clear all notifcations";
+      toaster.setAttribute("class", "toaster");
+      toaster.setAttribute("role", "dialog");
+      toaster.setAttribute("arial-label", "Toast message");
+      toaster.onclick = function() {
+        toaster.remove();
+      };
+      this.document.body.insertAdjacentElement("afterbegin", toaster);
     }
-    if (node.nodeName === "#text") {
-      thisOut.text = node.textContent;
+    const toast = this.document.createElement("div");
+    toast.title = "Click to clear this notifcation";
+    toast.setAttribute("class", `toast ${ui.variant ? ui.variant : ""} ${type}`);
+    toast.innerHTML = content;
+    toast.setAttribute("role", "alertdialog");
+    if (ui.modal)
+      toast.setAttribute("aria-modal", ui.modal);
+    toast.onclick = function(evt) {
+      evt.stopPropagation();
+      toast.remove();
+      if (toaster.childElementCount < 1)
+        toaster.remove();
+    };
+    if (type === "alert") {
     }
-    if (node.validity)
-      thisOut.userInput.validity = {};
-    for (const v in node.validity) {
-      thisOut.userInput.validity[v] = node.validity[v];
+    toaster.insertAdjacentElement(ui.appendToast === true ? "beforeend" : "afterbegin", toast);
+    if (ui.autohide === true) {
+      setInterval(() => {
+        toast.remove();
+        if (toaster.childElementCount < 1)
+          toaster.remove();
+      }, ui.autoHideDelay);
     }
-    return thisOut;
   }
-  // --- end of nodeGet --- //
+  // --- End of showDialog ---
+  /** Directly manage UI via JSON
+   * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions
+   */
+  ui(json) {
+    let msg = {};
+    if (json._ui)
+      msg = json;
+    else
+      msg._ui = json;
+    this._uiManager(msg);
+  }
   /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.
    * @param {string} cssSelector Identify the DOM element to get data from
    * @param {string} [propName] Optional. Specific name of property to get from the element
@@ -840,125 +957,6 @@ const Ui = class Ui2 {
     return out;
   }
   // --- end of uiGet --- //
-  /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API
-   * Wraps the included object in a div tag.
-   * PDF's, text or unknown MIME types are also wrapped in an iFrame.
-   * @param {string} url The URL of the source file to include
-   * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id
-   * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag
-   * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')
-   * @returns {Promise<any>} Status
-   */
-  async include(url, uiOptions) {
-    if (!fetch) {
-      Ui2.log(0, "Ui:include", "Current environment does not include `fetch`, skipping.")();
-      return "Current environment does not include `fetch`, skipping.";
-    }
-    if (!url) {
-      Ui2.log(0, "Ui:include", "url parameter must be provided, skipping.")();
-      return "url parameter must be provided, skipping.";
-    }
-    if (!uiOptions || !uiOptions.id) {
-      Ui2.log(0, "Ui:include", "uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.")();
-      return "uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.";
-    }
-    let response;
-    try {
-      response = await fetch(url);
-    } catch (error) {
-      Ui2.log(0, "Ui:include", `Fetch of file '${url}' failed. `, error.message)();
-      return error.message;
-    }
-    if (!response.ok) {
-      Ui2.log(0, "Ui:include", `Fetch of file '${url}' failed. Status='${response.statusText}'`)();
-      return response.statusText;
-    }
-    const contentType = await response.headers.get("content-type");
-    let type = null;
-    if (contentType) {
-      if (contentType.includes("text/html")) {
-        type = "html";
-      } else if (contentType.includes("application/json")) {
-        type = "json";
-      } else if (contentType.includes("multipart/form-data")) {
-        type = "form";
-      } else if (contentType.includes("image/")) {
-        type = "image";
-      } else if (contentType.includes("video/")) {
-        type = "video";
-      } else if (contentType.includes("application/pdf")) {
-        type = "pdf";
-      } else if (contentType.includes("text/plain")) {
-        type = "text";
-      }
-    }
-    let slot = "";
-    let txtReturn = "Include successful";
-    let data;
-    switch (type) {
-      case "html": {
-        data = await response.text();
-        slot = data;
-        break;
-      }
-      case "json": {
-        data = await response.json();
-        slot = '<pre class="syntax-highlight">';
-        slot += this.syntaxHighlight(data);
-        slot += "</pre>";
-        break;
-      }
-      case "form": {
-        data = await response.formData();
-        slot = '<pre class="syntax-highlight">';
-        slot += this.syntaxHighlight(data);
-        slot += "</pre>";
-        break;
-      }
-      case "image": {
-        data = await response.blob();
-        slot = `<img src="${URL.createObjectURL(data)}">`;
-        if (this.window["DOMPurify"]) {
-          txtReturn = "Include successful. BUT DOMPurify loaded which may block its use.";
-          Ui2.log("warn", "Ui:include:image", txtReturn)();
-        }
-        break;
-      }
-      case "video": {
-        data = await response.blob();
-        slot = `<video controls autoplay><source src="${URL.createObjectURL(data)}"></video>`;
-        if (this.window["DOMPurify"]) {
-          txtReturn = "Include successful. BUT DOMPurify loaded which may block its use.";
-          Ui2.log("warn", "Ui:include:video", txtReturn)();
-        }
-        break;
-      }
-      case "pdf":
-      case "text":
-      default: {
-        data = await response.blob();
-        slot = `<iframe style="resize:both;width:inherit;height:inherit;" src="${URL.createObjectURL(data)}">`;
-        if (this.window["DOMPurify"]) {
-          txtReturn = "Include successful. BUT DOMPurify loaded which may block its use.";
-          Ui2.log("warn", `Ui:include:${type}`, txtReturn)();
-        }
-        break;
-      }
-    }
-    uiOptions.type = "div";
-    uiOptions.slot = slot;
-    if (!uiOptions.parent)
-      uiOptions.parent = "body";
-    if (!uiOptions.attributes)
-      uiOptions.attributes = { class: "included" };
-    this._uiReplace({
-      components: [
-        uiOptions
-      ]
-    });
-    Ui2.log("trace", `Ui:include:${type}`, txtReturn)();
-    return txtReturn;
-  }
-  // ---- End of include() ---- //
+  //#endregion ---- -------- ----
 };
 module.exports = Ui;
diff --git a/src/front-end-module/ui.js b/src/front-end-module/ui.js
index 54329e73..15b9b70d 100644
--- a/src/front-end-module/ui.js
+++ b/src/front-end-module/ui.js
@@ -21,6 +21,15 @@
  */
 /* globals module:true */
 
+// Namespaces - See https://stackoverflow.com/a/52572048/1309986
+// const NAMESPACES = {
+//     svg: 'http://www.w3.org/2000/svg',
+//     html: 'http://www.w3.org/1999/xhtml',
+//     xml: 'http://www.w3.org/XML/1998/namespace',
+//     xlink: 'http://www.w3.org/1999/xlink',
+//     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...
+// }
+
 const Ui = class Ui {
     version = '6.8.0-src'
 
@@ -64,236 +73,7 @@ const Ui = class Ui {
         else this.syntaxHighlight = function(){}
     }
 
-    /** Directly manage UI via JSON
-     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions
-     */
-    ui(json) {
-        // Simulate a msg and process
-        let msg = {}
-        if (json._ui) msg = json
-        else msg._ui = json
-
-        this._uiManager(msg)
-    }
-
-    // TODO Add multi-slot
-    /** Replace or add an HTML element's slot from text or an HTML string
-     * Will use DOMPurify if that library has been loaded to window.
-     * param {*} ui Single entry from the msg._ui property
-     * @param {Element} el Reference to the element that we want to update
-     * @param {*} component The component we are trying to add/replace
-     */
-    replaceSlot(el, component) {
-        if (!component.slot) return
-        if (!el) return
-
-        // If DOMPurify is loaded, apply it now
-        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)
-        // Set the component content to the msg.payload or the slot property
-        el.innerHTML = component.slot
-    }
-
-    /** Converts markdown text input to HTML if the Markdown-IT library is loaded
-     * Otherwise simply returns the text
-     * @param {string} mdText The input markdown string
-     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text
-     */
-    convertMarkdown(mdText) {
-        if (!mdText) return ''
-        if (!this.window['markdownit']) return mdText
-
-        const opts = { // eslint-disable-line object-shorthand
-            html: true,
-            linkify: true,
-            _highlight: true,
-            langPrefix: 'language-',
-            highlight(str, lang) {
-                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {
-                    try {
-                        return `<pre class="highlight" data-language="${lang.toUpperCase()}">
-                                <code class="language-${lang}">${this.window['hljs'].highlightAuto(str).value}</code></pre>`
-                    } finally { } // eslint-disable-line no-empty
-                }
-                return `<pre class="highlight"><code>${md.utils.escapeHtml(str)}</code></pre>`
-            },
-        }
-        const md = this.window['markdownit'](opts)
-        // Convert from markdown to HTML
-        return md.render(mdText)
-    }
-
-    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded
-     * Otherwise just returns that HTML as-is.
-     * @param {string} html The input HTML string
-     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded
-     */
-    sanitiseHTML(html) {
-        if (!this.window['DOMPurify']) return html
-        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })
-    }
-
-    /** Replace or add an HTML element's slot from a Markdown string
-     * Only does something if the markdownit library has been loaded to window.
-     * Will use DOMPurify if that library has been loaded to window.
-     * @param {Element} el Reference to the element that we want to update
-     * @param {*} component The component we are trying to add/replace
-     */
-    replaceSlotMarkdown(el, component) {
-        if (!el) return
-        if (!component.slotMarkdown) return
-
-        // Convert from markdown to HTML
-        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)
-        // If DOMPurify is loaded, apply it now
-        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)
-        // Set the component content to the the converted slotMarkdown property
-        el.innerHTML = component.slotMarkdown
-    }
-
-    /** Attach a new remote script to the end of HEAD synchronously
-     * NOTE: It takes too long for most scripts to finish loading
-     *       so this is pretty useless to work with the dynamic UI features directly.
-     * @param {string} url The url to be used in the script src attribute
-     */
-    loadScriptSrc(url) {
-        const newScript = this.document.createElement('script')
-        newScript.src = url
-        newScript.async = false
-        this.document.head.appendChild(newScript)
-    }
-
-    /** Attach a new remote stylesheet link to the end of HEAD synchronously
-     * NOTE: It takes too long for most scripts to finish loading
-     *       so this is pretty useless to work with the dynamic UI features directly.
-     * @param {string} url The url to be used in the style link href attribute
-     */
-    loadStyleSrc(url) {
-        const newStyle = this.document.createElement('link')
-        newStyle.href = url
-        newStyle.rel = 'stylesheet'
-        newStyle.type = 'text/css'
-
-        this.document.head.appendChild(newStyle)
-    }
-
-    /** Attach a new text script to the end of HEAD synchronously
-     * NOTE: It takes too long for most scripts to finish loading
-     *       so this is pretty useless to work with the dynamic UI features directly.
-     * @param {string} textFn The text to be loaded as a script
-     */
-    loadScriptTxt(textFn) {
-        const newScript = this.document.createElement('script')
-        newScript.async = false
-        newScript.textContent = textFn
-        this.document.head.appendChild(newScript)
-    }
-
-    /** Attach a new text stylesheet to the end of HEAD synchronously
-     * NOTE: It takes too long for most scripts to finish loading
-     *       so this is pretty useless to work with the dynamic UI features directly.
-     * @param {string} textFn The text to be loaded as a stylesheet
-     */
-    loadStyleTxt(textFn) {
-        const newStyle = this.document.createElement('style')
-        newStyle.textContent = textFn
-        this.document.head.appendChild(newStyle)
-    }
-
-    /** Show a pop-over "toast" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen
-     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,
-     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,
-     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/
-     * @param {"notify"|"alert"} type Dialog type
-     * @param {object} ui standardised ui data
-     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.
-     * @returns {void}
-     */
-    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity
-
-        //#region -- Check properties --
-
-        let content = ''
-        // Main body content
-        if (msg.payload && typeof msg.payload === 'string') content += msg.payload
-        if (ui.content) content += ui.content
-        // Toast wont show anyway if content is empty, may as well warn user
-        if (content === '') {
-            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()
-            return
-        }
-
-        // Use msg.topic as title if no title provided
-        if (!ui.title && msg.topic) ui.title = msg.topic
-        if (ui.title) content = `<p class="toast-head">${ui.title}</p><p>${content}</p>`
-
-        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue
-        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''
-
-        // Toasts auto-hide by default after 10s but alerts do not auto-hide
-        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide
-        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide
-        // If set, number of ms until toast is auto-hidden
-        if (ui.autoHideDelay) {
-            if (!ui.autohide) ui.autohide = true
-            ui.delay = ui.autoHideDelay
-        } else ui.autoHideDelay = 10000 // default = 10s
-        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true
-
-        if (type === 'alert') {
-            ui.modal = true
-            ui.autohide = false
-            content = `<svg viewBox="0 0 192.146 192.146" style="width:30;background-color:transparent;"><path d="M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z" /></svg> ${content}`
-        }
-
-        //#endregion -- -- --
-
-        // Create a toaster container element if not already created - or get a ref to it
-        let toaster = this.document.getElementById('toaster')
-        if (toaster === null) {
-            toaster = this.document.createElement('div')
-            toaster.id = 'toaster'
-            toaster.title = 'Click to clear all notifcations'
-            toaster.setAttribute('class', 'toaster')
-            toaster.setAttribute('role', 'dialog')
-            toaster.setAttribute('arial-label', 'Toast message')
-            toaster.onclick = function () {
-                // @ts-ignore
-                toaster.remove()
-            }
-            this.document.body.insertAdjacentElement('afterbegin', toaster)
-        }
-
-        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!
-        const toast = this.document.createElement('div')
-        toast.title = 'Click to clear this notifcation'
-        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)
-        toast.innerHTML = content
-        toast.setAttribute('role', 'alertdialog')
-        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)
-        toast.onclick = function (evt) {
-            evt.stopPropagation()
-            toast.remove()
-            // @ts-ignore
-            if (toaster.childElementCount < 1) toaster.remove()
-        }
-
-        // TODO
-        if (type === 'alert') {
-            // newD.setAttribute('aria-labelledby', '')
-            // newD.setAttribute('aria-describedby', '')
-        }
-
-        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)
-
-        // Auto-hide
-        if (ui.autohide === true) {
-            setInterval(() => {
-                toast.remove()
-                // @ts-ignore
-                if (toaster.childElementCount < 1) toaster.remove()
-            }, ui.autoHideDelay)
-        }
-    } // --- End of showDialog ---
+    //#region ---- Internal Methods ----
 
     /** Show a browser notification if the browser and the user allows it
      * @param {object} config Notification config data
@@ -327,85 +107,116 @@ const Ui = class Ui {
         }
     }
 
-    /** Show a browser notification if possible. Returns a promise
-     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)
-     * or a Notifications API options object + config.title string.
-     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification
-     * @param {object|string} config Notification config object or simple message string
-     * @returns {Promise} Resolves on close or click event, returns the event.
-     */
-    async notification(config) {
-        if (typeof config === 'string') {
-            config = { body: config }
-        }
-        // Are notifications available?
-        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))
-        // Do we have permission? If not, ask for permission
-        let permit = Notification.permission
-        if (permit === 'denied') {
-            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return
-        } else if (permit === 'granted') {
-            return this._showNotification(config)
-        } else { // if (permit === 'default') {
-            permit = await Notification.requestPermission()
-            if (permit === 'granted') {
-                return this._showNotification(config)
-            }
-            return Promise.reject(new Error('Notifications not permitted by user'))
-        }
-    }
+    // Vue dynamic inserts Don't really work ...
+    // _uiAddVue(ui, isRecurse) {
 
-    /** Load a dynamic UI from a JSON web reponse
-     * @param {string} url URL that will return the ui JSON
+    //     // must be Vue
+    //     // must have only 1 root element
+    //     const compToAdd = ui.components[0]
+    //     const newEl = this.document.createElement(compToAdd.type)
+
+    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload
+    //     this._uiComposeComponent(newEl, compToAdd)
+
+    //     // If nested components, go again - but don't pass payload to sub-components
+    //     if (compToAdd.components) {
+    //         this._uiExtendEl(newEl, compToAdd.components)
+    //     }
+
+    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()
+    //     this.set('magick', newEl.outerHTML)
+
+    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)
+    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)
+    // }
+
+    // TODO Add check if ID already exists
+    // TODO Allow single add without using components array
+    /** Handle incoming msg._ui add requests
+     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object
+     * @param {boolean} isRecurse Is this a recursive call?
      */
-    loadui(url) {
-        if (!fetch) {
-            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()
-            return
-        }
-        if (!url) {
-            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()
-            return
-        }
+    _uiAdd(ui, isRecurse) {
+        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()
 
-        fetch(url)
-            .then(response => {
-                if (response.ok === false) {
-                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()
-                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)
+        // Vue dynamic inserts Don't really work ...
+        // if (this.#isVue && !isRecurse) {
+        //     this._uiAddVue(ui, false)
+        //     return
+        // }
+
+        ui.components.forEach((compToAdd, i) => {
+            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()
+
+            /** @type {*} Create the new component - some kind of HTML element */
+            let newEl
+            switch (compToAdd.type) {
+                // If trying to insert raw html, wrap in a div
+                case 'html': {
+                    compToAdd.ns = 'html'
+                    newEl = this.document.createElement('div')
+                    break
                 }
 
-                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()
-                // Did we get json?
-                const contentType = response.headers.get('content-type')
-                if (!contentType || !contentType.includes('application/json')) {
-                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)
+                // If trying to insert raw svg, need to create in namespace
+                case 'svg': {
+                    compToAdd.ns = 'svg'
+                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')
+                    break
                 }
-                // Returns parsed json to next .then
-                return response.json()
-            })
-            .then(data => {
-                if (data !== undefined) {
-                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()
-                    // Call the _uiManager
-                    this._uiManager({ _ui: data })
-                    return true
+
+                default: {
+                    compToAdd.ns = 'dom'
+                    newEl = this.document.createElement(compToAdd.type)
+                    break
                 }
-                return false
-            })
-            .catch(err => {
-                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()
-            })
-    } // --- end of loadui
+            }
 
-    // Namespaces - See https://stackoverflow.com/a/52572048/1309986
-    // const NAMESPACES = {
-    //     svg: 'http://www.w3.org/2000/svg',
-    //     html: 'http://www.w3.org/1999/xhtml',
-    //     xml: 'http://www.w3.org/XML/1998/namespace',
-    //     xlink: 'http://www.w3.org/1999/xlink',
-    //     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...
-    // }
+            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload
+
+            // const parser = new DOMParser()
+            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')
+            // console.log(compToAdd, newDoc.body)()
+
+            this._uiComposeComponent(newEl, compToAdd)
+
+            /** @type {HTMLElement} Where to add the new element? */
+            let elParent
+            if (compToAdd.parentEl) {
+                elParent = compToAdd.parentEl
+            } else if (ui.parentEl) {
+                elParent = ui.parentEl
+            } else if (compToAdd.parent) {
+                elParent = this.document.querySelector(compToAdd.parent)
+            } else if (ui.parent) {
+                elParent = this.document.querySelector(ui.parent)
+            }
+            if (!elParent) {
+                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()
+                elParent = this.document.querySelector('body')
+            }
+
+            if (compToAdd.position && compToAdd.position === 'first') {
+                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3
+                elParent.insertBefore(newEl, elParent.firstChild)
+            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {
+                elParent.insertBefore(newEl, elParent.children[compToAdd.position])
+            } else {
+                // Append to the required parent
+                elParent.appendChild(newEl)
+            }
+
+            // If nested components, go again - but don't pass payload to sub-components
+            if (compToAdd.components) {
+                // this._uiAdd({
+                //     method: ui.method,
+                //     parentEl: newEl,
+                //     components: compToAdd.components,
+                // }, true)
+                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)
+            }
+        })
+    } // --- end of _uiAdd ---
 
     /** Enhance an HTML element that is being composed with ui data
      *  such as ID, attribs, event handlers, custom props, etc.
@@ -416,6 +227,7 @@ const Ui = class Ui {
         // Add attributes
         if (comp.attributes) {
             Object.keys(comp.attributes).forEach((attrib) => {
+                if (attrib === 'class' && Array.isArray(comp.attributes[attrib])) comp.attributes[attrib].join(' ')
                 // For values, set the actual value as well since the attrib only changes the DEFAULT value
                 if (attrib === 'value') el.value = comp.attributes[attrib]
 
@@ -520,116 +332,129 @@ const Ui = class Ui {
         })
     }
 
-    // Vue dynamic inserts Don't really work ...
-    // _uiAddVue(ui, isRecurse) {
+    // TODO Add more error handling and parameter validation
+    /** Handle incoming _ui load requests
+     * Can load JavaScript modules, JavaScript scripts and CSS.
+     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object
+     */
+    _uiLoad(ui) {
 
-    //     // must be Vue
-    //     // must have only 1 root element
-    //     const compToAdd = ui.components[0]
-    //     const newEl = this.document.createElement(compToAdd.type)
+        // Self-loading ECMA Modules (e.g. web components)
+        if (ui.components) {
+            if (!Array.isArray(ui.components)) ui.components = [ui.components]
 
-    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload
-    //     this._uiComposeComponent(newEl, compToAdd)
+            ui.components.forEach(async component => {
+                await import(component)
+            })
+        }
+        // Remote Scripts
+        if (ui.srcScripts) {
+            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]
 
-    //     // If nested components, go again - but don't pass payload to sub-components
-    //     if (compToAdd.components) {
-    //         this._uiExtendEl(newEl, compToAdd.components)
-    //     }
+            ui.srcScripts.forEach(script => {
+                this.loadScriptSrc(script)
+            })
+        }
+        // Scripts passed as text
+        if (ui.txtScripts) {
+            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]
 
-    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()
-    //     this.set('magick', newEl.outerHTML)
+            this.loadScriptTxt(ui.txtScripts.join('\n'))
+        }
+        // Remote Stylesheets
+        if (ui.srcStyles) {
+            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]
 
-    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)
-    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)
-    // }
+            ui.srcStyles.forEach(sheet => {
+                this.loadStyleSrc(sheet)
+            })
+        }
+        // Styles passed as text
+        if (ui.txtStyles) {
+            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]
 
-    // TODO Add check if ID already exists
-    // TODO Allow single add without using components array
-    /** Handle incoming msg._ui add requests
-     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object
-     * @param {boolean} isRecurse Is this a recursive call?
+            this.loadStyleTxt(ui.txtStyles.join('\n'))
+        }
+
+    } // --- end of _uiLoad ---
+
+    /** Handle incoming _ui messages and loaded UI JSON files
+     * Called from start()
+     * @param {*} msg Standardised msg object containing a _ui property object
      */
-    _uiAdd(ui, isRecurse) {
-        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()
+    _uiManager(msg) {
+        if (!msg._ui) return
 
-        // Vue dynamic inserts Don't really work ...
-        // if (this.#isVue && !isRecurse) {
-        //     this._uiAddVue(ui, false)
-        //     return
-        // }
+        // Make sure that _ui is an array
+        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]
 
-        ui.components.forEach((compToAdd, i) => {
-            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()
+        msg._ui.forEach((ui, i) => {
+            if (!ui.method) {
+                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()
+                return
+            }
 
-            /** @type {*} Create the new component - some kind of HTML element */
-            let newEl
-            switch (compToAdd.type) {
-                // If trying to insert raw html, wrap in a div
-                case 'html': {
-                    compToAdd.ns = 'html'
-                    newEl = this.document.createElement('div')
+            ui.payload = msg.payload
+            ui.topic = msg.topic
+            switch (ui.method) {
+                case 'add': {
+                    this._uiAdd(ui, false)
                     break
                 }
 
-                // If trying to insert raw svg, need to create in namespace
-                case 'svg': {
-                    compToAdd.ns = 'svg'
-                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')
+                case 'remove': {
+                    this._uiRemove(ui, false)
                     break
                 }
 
-                default: {
-                    compToAdd.ns = 'dom'
-                    newEl = this.document.createElement(compToAdd.type)
+                case 'removeAll': {
+                    this._uiRemove(ui, true)
                     break
                 }
-            }
 
-            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload
+                case 'replace': {
+                    this._uiReplace(ui)
+                    break
+                }
 
-            // const parser = new DOMParser()
-            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')
-            // console.log(compToAdd, newDoc.body)()
+                case 'update': {
+                    this._uiUpdate(ui)
+                    break
+                }
 
-            this._uiComposeComponent(newEl, compToAdd)
+                case 'load': {
+                    this._uiLoad(ui)
+                    break
+                }
 
-            /** @type {HTMLElement} Where to add the new element? */
-            let elParent
-            if (compToAdd.parentEl) {
-                elParent = compToAdd.parentEl
-            } else if (ui.parentEl) {
-                elParent = ui.parentEl
-            } else if (compToAdd.parent) {
-                elParent = this.document.querySelector(compToAdd.parent)
-            } else if (ui.parent) {
-                elParent = this.document.querySelector(ui.parent)
-            }
-            if (!elParent) {
-                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()
-                elParent = this.document.querySelector('body')
-            }
+                case 'reload': {
+                    this._uiReload()
+                    break
+                }
 
-            if (compToAdd.position && compToAdd.position === 'first') {
-                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3
-                elParent.insertBefore(newEl, elParent.firstChild)
-            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {
-                elParent.insertBefore(newEl, elParent.children[compToAdd.position])
-            } else {
-                // Append to the required parent
-                elParent.appendChild(newEl)
-            }
+                case 'notify': {
+                    this.showDialog('notify', ui, msg)
+                    break
+                }
 
-            // If nested components, go again - but don't pass payload to sub-components
-            if (compToAdd.components) {
-                // this._uiAdd({
-                //     method: ui.method,
-                //     parentEl: newEl,
-                //     components: compToAdd.components,
-                // }, true)
-                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)
+                case 'alert': {
+                    this.showDialog('alert', ui, msg)
+                    break
+                }
+
+                default: {
+                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()
+                    break
+                }
             }
         })
-    } // --- end of _uiAdd ---
+    } // --- end of _uiManager ---
+
+    /** Handle a reload request */
+    _uiReload() {
+        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()
+        location.reload()
+    }
 
     // TODO Add better tests for failures (see comments)
     /** Handle incoming _ui remove requests
@@ -784,130 +609,264 @@ const Ui = class Ui {
         })
     } // --- end of _uiUpdate ---
 
-    // TODO Add more error handling and parameter validation
-    /** Handle incoming _ui load requests
-     * Can load JavaScript modules, JavaScript scripts and CSS.
-     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object
-     */
-    _uiLoad(ui) {
+    //#endregion ---- -------- ----
+    //#region ---- External Methods ----
 
-        // Self-loading ECMA Modules (e.g. web components)
-        if (ui.components) {
-            if (!Array.isArray(ui.components)) ui.components = [ui.components]
+    /** Converts markdown text input to HTML if the Markdown-IT library is loaded
+     * Otherwise simply returns the text
+     * @param {string} mdText The input markdown string
+     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text
+     */
+    convertMarkdown(mdText) {
+        if (!mdText) return ''
+        if (!this.window['markdownit']) return mdText
 
-            ui.components.forEach(async component => {
-                await import(component)
-            })
+        const opts = { // eslint-disable-line object-shorthand
+            html: true,
+            linkify: true,
+            _highlight: true,
+            langPrefix: 'language-',
+            highlight(str, lang) {
+                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {
+                    try {
+                        return `<pre class="highlight" data-language="${lang.toUpperCase()}">
+                                <code class="language-${lang}">${this.window['hljs'].highlightAuto(str).value}</code></pre>`
+                    } finally { } // eslint-disable-line no-empty
+                }
+                return `<pre class="highlight"><code>${md.utils.escapeHtml(str)}</code></pre>`
+            },
         }
-        // Remote Scripts
-        if (ui.srcScripts) {
-            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]
+        const md = this.window['markdownit'](opts)
+        // Convert from markdown to HTML
+        return md.render(mdText)
+    }
 
-            ui.srcScripts.forEach(script => {
-                this.loadScriptSrc(script)
-            })
+    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API
+     * Wraps the included object in a div tag.
+     * PDF's, text or unknown MIME types are also wrapped in an iFrame.
+     * @param {string} url The URL of the source file to include
+     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id
+     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag
+     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')
+     * @returns {Promise<any>} Status
+     */
+    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity
+        // TODO: src, id, parent must all be a strings
+        if (!fetch) {
+            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()
+            return 'Current environment does not include `fetch`, skipping.'
         }
-        // Scripts passed as text
-        if (ui.txtScripts) {
-            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]
-
-            this.loadScriptTxt(ui.txtScripts.join('\n'))
+        if (!url) {
+            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()
+            return 'url parameter must be provided, skipping.'
         }
-        // Remote Stylesheets
-        if (ui.srcStyles) {
-            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]
-
-            ui.srcStyles.forEach(sheet => {
-                this.loadStyleSrc(sheet)
-            })
+        if (!uiOptions || !uiOptions.id) {
+            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()
+            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'
         }
-        // Styles passed as text
-        if (ui.txtStyles) {
-            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]
 
-            this.loadStyleTxt(ui.txtStyles.join('\n'))
+        // Try to get the content via the URL
+        let response
+        try {
+            response = await fetch(url)
+        } catch (error) {
+            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()
+            return error.message
+        }
+        if (!response.ok) {
+            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()
+            return response.statusText
         }
 
-    } // --- end of _uiLoad ---
-
-    /** Handle a reload request */
-    _uiReload() {
-        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()
-        location.reload()
-    }
+        // Work out what type of data we got
+        const contentType = await response.headers.get('content-type')
+        let type = null
+        if (contentType) {
+            if (contentType.includes('text/html')) {
+                type = 'html'
+            } else if (contentType.includes('application/json')) {
+                type = 'json'
+            } else if (contentType.includes('multipart/form-data')) {
+                type = 'form'
+            } else if (contentType.includes('image/')) {
+                type = 'image'
+            } else if (contentType.includes('video/')) {
+                type = 'video'
+            } else if (contentType.includes('application/pdf')) {
+                type = 'pdf'
+            } else if (contentType.includes('text/plain')) {
+                type = 'text'
+            } // else type = null
+        }
 
-    /** Handle incoming _ui messages and loaded UI JSON files
-     * Called from start()
-     * @param {*} msg Standardised msg object containing a _ui property object
-     */
-    _uiManager(msg) {
-        if (!msg._ui) return
+        // Create the HTML to include on the page based on type
+        let slot = ''
+        let txtReturn = 'Include successful'
+        let data
+        switch (type) {
+            case 'html': {
+                data = await response.text()
+                slot = data
+                break
+            }
 
-        // Make sure that _ui is an array
-        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]
+            case 'json': {
+                data = await response.json()
+                slot = '<pre class="syntax-highlight">'
+                slot += this.syntaxHighlight(data)
+                slot += '</pre>'
+                break
+            }
 
-        msg._ui.forEach((ui, i) => {
-            if (!ui.method) {
-                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()
-                return
+            case 'form': {
+                data = await response.formData()
+                slot = '<pre class="syntax-highlight">'
+                slot += this.syntaxHighlight(data)
+                slot += '</pre>'
+                break
             }
 
-            ui.payload = msg.payload
-            ui.topic = msg.topic
-            switch (ui.method) {
-                case 'add': {
-                    this._uiAdd(ui, false)
-                    break
+            case 'image': {
+                data = await response.blob()
+                slot = `<img src="${URL.createObjectURL(data)}">`
+                if (this.window['DOMPurify']) {
+                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'
+                    Ui.log('warn', 'Ui:include:image', txtReturn)()
                 }
+                break
+            }
 
-                case 'remove': {
-                    this._uiRemove(ui, false)
-                    break
+            case 'video': {
+                data = await response.blob()
+                slot = `<video controls autoplay><source src="${URL.createObjectURL(data)}"></video>`
+                if (this.window['DOMPurify']) {
+                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'
+                    Ui.log('warn', 'Ui:include:video', txtReturn)()
                 }
+                break
+            }
 
-                case 'removeAll': {
-                    this._uiRemove(ui, true)
-                    break
-                }
-
-                case 'replace': {
-                    this._uiReplace(ui)
-                    break
+            case 'pdf':
+            case 'text':
+            default: {
+                data = await response.blob()
+                slot = `<iframe style="resize:both;width:inherit;height:inherit;" src="${URL.createObjectURL(data)}">`
+                if (this.window['DOMPurify']) {
+                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'
+                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()
                 }
+                break
+            }
+        }
 
-                case 'update': {
-                    this._uiUpdate(ui)
-                    break
-                }
+        // Wrap it all in a <div id="..." class="included">
+        uiOptions.type = 'div'
+        uiOptions.slot = slot
+        if (!uiOptions.parent) uiOptions.parent = 'body'
+        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }
 
-                case 'load': {
-                    this._uiLoad(ui)
-                    break
-                }
+        // Use uibuilder's standard ui processing to turn the instructions into HTML
+        this._uiReplace({
+            components: [
+                uiOptions
+            ]
+        })
 
-                case 'reload': {
-                    this._uiReload()
-                    break
-                }
+        Ui.log('trace', `Ui:include:${type}`, txtReturn)()
+        return txtReturn
+    } // ---- End of include() ---- //
 
-                case 'notify': {
-                    this.showDialog('notify', ui, msg)
-                    break
-                }
+    /** Attach a new remote script to the end of HEAD synchronously
+     * NOTE: It takes too long for most scripts to finish loading
+     *       so this is pretty useless to work with the dynamic UI features directly.
+     * @param {string} url The url to be used in the script src attribute
+     */
+    loadScriptSrc(url) {
+        const newScript = this.document.createElement('script')
+        newScript.src = url
+        newScript.async = false
+        this.document.head.appendChild(newScript)
+    }
 
-                case 'alert': {
-                    this.showDialog('alert', ui, msg)
-                    break
-                }
+    /** Attach a new text script to the end of HEAD synchronously
+     * NOTE: It takes too long for most scripts to finish loading
+     *       so this is pretty useless to work with the dynamic UI features directly.
+     * @param {string} textFn The text to be loaded as a script
+     */
+    loadScriptTxt(textFn) {
+        const newScript = this.document.createElement('script')
+        newScript.async = false
+        newScript.textContent = textFn
+        this.document.head.appendChild(newScript)
+    }
 
-                default: {
-                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()
-                    break
+    /** Attach a new remote stylesheet link to the end of HEAD synchronously
+     * NOTE: It takes too long for most scripts to finish loading
+     *       so this is pretty useless to work with the dynamic UI features directly.
+     * @param {string} url The url to be used in the style link href attribute
+     */
+    loadStyleSrc(url) {
+        const newStyle = this.document.createElement('link')
+        newStyle.href = url
+        newStyle.rel = 'stylesheet'
+        newStyle.type = 'text/css'
+
+        this.document.head.appendChild(newStyle)
+    }
+
+    /** Attach a new text stylesheet to the end of HEAD synchronously
+     * NOTE: It takes too long for most scripts to finish loading
+     *       so this is pretty useless to work with the dynamic UI features directly.
+     * @param {string} textFn The text to be loaded as a stylesheet
+     */
+    loadStyleTxt(textFn) {
+        const newStyle = this.document.createElement('style')
+        newStyle.textContent = textFn
+        this.document.head.appendChild(newStyle)
+    }
+
+    /** Load a dynamic UI from a JSON web reponse
+     * @param {string} url URL that will return the ui JSON
+     */
+    loadui(url) {
+        if (!fetch) {
+            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()
+            return
+        }
+        if (!url) {
+            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()
+            return
+        }
+
+        fetch(url)
+            .then(response => {
+                if (response.ok === false) {
+                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()
+                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)
                 }
-            }
-        })
 
-    } // --- end of _uiManager ---
+                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()
+                // Did we get json?
+                const contentType = response.headers.get('content-type')
+                if (!contentType || !contentType.includes('application/json')) {
+                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)
+                }
+                // Returns parsed json to next .then
+                return response.json()
+            })
+            .then(data => {
+                if (data !== undefined) {
+                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()
+                    // Call the _uiManager
+                    this._uiManager({ _ui: data })
+                    return true
+                }
+                return false
+            })
+            .catch(err => {
+                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()
+            })
+    } // --- end of loadui
 
     /** Get standard data from a DOM node.
      * @param {*} node DOM node to examine
@@ -981,6 +940,187 @@ const Ui = class Ui {
         return thisOut
     } // --- end of nodeGet --- //
 
+    /** Show a browser notification if possible. Returns a promise
+     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)
+     * or a Notifications API options object + config.title string.
+     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification
+     * @param {object|string} config Notification config object or simple message string
+     * @returns {Promise} Resolves on close or click event, returns the event.
+     */
+    async notification(config) {
+        if (typeof config === 'string') {
+            config = { body: config }
+        }
+        // Are notifications available?
+        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))
+        // Do we have permission? If not, ask for permission
+        let permit = Notification.permission
+        if (permit === 'denied') {
+            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return
+        } else if (permit === 'granted') {
+            return this._showNotification(config)
+        } else { // if (permit === 'default') {
+            permit = await Notification.requestPermission()
+            if (permit === 'granted') {
+                return this._showNotification(config)
+            }
+            return Promise.reject(new Error('Notifications not permitted by user'))
+        }
+    }
+
+    // TODO Add multi-slot
+    /** Replace or add an HTML element's slot from text or an HTML string
+     * Will use DOMPurify if that library has been loaded to window.
+     * param {*} ui Single entry from the msg._ui property
+     * @param {Element} el Reference to the element that we want to update
+     * @param {*} component The component we are trying to add/replace
+     */
+    replaceSlot(el, component) {
+        if (!component.slot) return
+        if (!el) return
+
+        // If DOMPurify is loaded, apply it now
+        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)
+        // Set the component content to the msg.payload or the slot property
+        el.innerHTML = component.slot
+    }
+
+    /** Replace or add an HTML element's slot from a Markdown string
+     * Only does something if the markdownit library has been loaded to window.
+     * Will use DOMPurify if that library has been loaded to window.
+     * @param {Element} el Reference to the element that we want to update
+     * @param {*} component The component we are trying to add/replace
+     */
+    replaceSlotMarkdown(el, component) {
+        if (!el) return
+        if (!component.slotMarkdown) return
+
+        // Convert from markdown to HTML
+        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)
+        // If DOMPurify is loaded, apply it now
+        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)
+        // Set the component content to the the converted slotMarkdown property
+        el.innerHTML = component.slotMarkdown
+    }
+
+    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded
+     * Otherwise just returns that HTML as-is.
+     * @param {string} html The input HTML string
+     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded
+     */
+    sanitiseHTML(html) {
+        if (!this.window['DOMPurify']) return html
+        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })
+    }
+
+    /** Show a pop-over "toast" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen
+     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,
+     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,
+     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/
+     * @param {"notify"|"alert"} type Dialog type
+     * @param {object} ui standardised ui data
+     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.
+     * @returns {void}
+     */
+    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity
+
+        //#region -- Check properties --
+
+        let content = ''
+        // Main body content
+        if (msg.payload && typeof msg.payload === 'string') content += msg.payload
+        if (ui.content) content += ui.content
+        // Toast wont show anyway if content is empty, may as well warn user
+        if (content === '') {
+            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()
+            return
+        }
+
+        // Use msg.topic as title if no title provided
+        if (!ui.title && msg.topic) ui.title = msg.topic
+        if (ui.title) content = `<p class="toast-head">${ui.title}</p><p>${content}</p>`
+
+        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue
+        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''
+
+        // Toasts auto-hide by default after 10s but alerts do not auto-hide
+        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide
+        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide
+        // If set, number of ms until toast is auto-hidden
+        if (ui.autoHideDelay) {
+            if (!ui.autohide) ui.autohide = true
+            ui.delay = ui.autoHideDelay
+        } else ui.autoHideDelay = 10000 // default = 10s
+        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true
+
+        if (type === 'alert') {
+            ui.modal = true
+            ui.autohide = false
+            content = `<svg viewBox="0 0 192.146 192.146" style="width:30;background-color:transparent;"><path d="M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z" /></svg> ${content}`
+        }
+
+        //#endregion -- -- --
+
+        // Create a toaster container element if not already created - or get a ref to it
+        let toaster = this.document.getElementById('toaster')
+        if (toaster === null) {
+            toaster = this.document.createElement('div')
+            toaster.id = 'toaster'
+            toaster.title = 'Click to clear all notifcations'
+            toaster.setAttribute('class', 'toaster')
+            toaster.setAttribute('role', 'dialog')
+            toaster.setAttribute('arial-label', 'Toast message')
+            toaster.onclick = function () {
+                // @ts-ignore
+                toaster.remove()
+            }
+            this.document.body.insertAdjacentElement('afterbegin', toaster)
+        }
+
+        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!
+        const toast = this.document.createElement('div')
+        toast.title = 'Click to clear this notifcation'
+        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)
+        toast.innerHTML = content
+        toast.setAttribute('role', 'alertdialog')
+        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)
+        toast.onclick = function (evt) {
+            evt.stopPropagation()
+            toast.remove()
+            // @ts-ignore
+            if (toaster.childElementCount < 1) toaster.remove()
+        }
+
+        // TODO
+        if (type === 'alert') {
+            // newD.setAttribute('aria-labelledby', '')
+            // newD.setAttribute('aria-describedby', '')
+        }
+
+        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)
+
+        // Auto-hide
+        if (ui.autohide === true) {
+            setInterval(() => {
+                toast.remove()
+                // @ts-ignore
+                if (toaster.childElementCount < 1) toaster.remove()
+            }, ui.autoHideDelay)
+        }
+    } // --- End of showDialog ---
+
+    /** Directly manage UI via JSON
+     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions
+     */
+    ui(json) {
+        // Simulate a msg and process
+        let msg = {}
+        if (json._ui) msg = json
+        else msg._ui = json
+
+        this._uiManager(msg)
+    }
+
     /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.
      * @param {string} cssSelector Identify the DOM element to get data from
      * @param {string} [propName] Optional. Specific name of property to get from the element
@@ -1039,140 +1179,7 @@ const Ui = class Ui {
         return out
     } // --- end of uiGet --- //
 
-    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API
-     * Wraps the included object in a div tag.
-     * PDF's, text or unknown MIME types are also wrapped in an iFrame.
-     * @param {string} url The URL of the source file to include
-     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id
-     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag
-     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')
-     * @returns {Promise<any>} Status
-     */
-    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity
-        // TODO: src, id, parent must all be a strings
-        if (!fetch) {
-            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()
-            return 'Current environment does not include `fetch`, skipping.'
-        }
-        if (!url) {
-            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()
-            return 'url parameter must be provided, skipping.'
-        }
-        if (!uiOptions || !uiOptions.id) {
-            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()
-            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'
-        }
-
-        // Try to get the content via the URL
-        let response
-        try {
-            response = await fetch(url)
-        } catch (error) {
-            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()
-            return error.message
-        }
-        if (!response.ok) {
-            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()
-            return response.statusText
-        }
-
-        // Work out what type of data we got
-        const contentType = await response.headers.get('content-type')
-        let type = null
-        if (contentType) {
-            if (contentType.includes('text/html')) {
-                type = 'html'
-            } else if (contentType.includes('application/json')) {
-                type = 'json'
-            } else if (contentType.includes('multipart/form-data')) {
-                type = 'form'
-            } else if (contentType.includes('image/')) {
-                type = 'image'
-            } else if (contentType.includes('video/')) {
-                type = 'video'
-            } else if (contentType.includes('application/pdf')) {
-                type = 'pdf'
-            } else if (contentType.includes('text/plain')) {
-                type = 'text'
-            } // else type = null
-        }
-
-        // Create the HTML to include on the page based on type
-        let slot = ''
-        let txtReturn = 'Include successful'
-        let data
-        switch (type) {
-            case 'html': {
-                data = await response.text()
-                slot = data
-                break
-            }
-
-            case 'json': {
-                data = await response.json()
-                slot = '<pre class="syntax-highlight">'
-                slot += this.syntaxHighlight(data)
-                slot += '</pre>'
-                break
-            }
-
-            case 'form': {
-                data = await response.formData()
-                slot = '<pre class="syntax-highlight">'
-                slot += this.syntaxHighlight(data)
-                slot += '</pre>'
-                break
-            }
-
-            case 'image': {
-                data = await response.blob()
-                slot = `<img src="${URL.createObjectURL(data)}">`
-                if (this.window['DOMPurify']) {
-                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'
-                    Ui.log('warn', 'Ui:include:image', txtReturn)()
-                }
-                break
-            }
-
-            case 'video': {
-                data = await response.blob()
-                slot = `<video controls autoplay><source src="${URL.createObjectURL(data)}"></video>`
-                if (this.window['DOMPurify']) {
-                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'
-                    Ui.log('warn', 'Ui:include:video', txtReturn)()
-                }
-                break
-            }
-
-            case 'pdf':
-            case 'text':
-            default: {
-                data = await response.blob()
-                slot = `<iframe style="resize:both;width:inherit;height:inherit;" src="${URL.createObjectURL(data)}">`
-                if (this.window['DOMPurify']) {
-                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'
-                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()
-                }
-                break
-            }
-        }
-
-        // Wrap it all in a <div id="..." class="included">
-        uiOptions.type = 'div'
-        uiOptions.slot = slot
-        if (!uiOptions.parent) uiOptions.parent = 'body'
-        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }
-
-        // Use uibuilder's standard ui processing to turn the instructions into HTML
-        this._uiReplace({
-            components: [
-                uiOptions
-            ]
-        })
-
-        Ui.log('trace', `Ui:include:${type}`, txtReturn)()
-        return txtReturn
-    } // ---- End of include() ---- //
+    //#endregion ---- -------- ----
 }
 
 module.exports = Ui

From bf412c78b20e070c03fb3bfd30055fe54e4be5d3 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Thu, 30 Nov 2023 17:54:40 +0000
Subject: [PATCH 15/78] Fix usePageName logic

---
 nodes/uib-save/customNode.js | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/nodes/uib-save/customNode.js b/nodes/uib-save/customNode.js
index d2e41b26..9f82306f 100644
--- a/nodes/uib-save/customNode.js
+++ b/nodes/uib-save/customNode.js
@@ -59,7 +59,6 @@ const mod = {
  * @this {runtimeNode & uibSaveNode}
  */
 async function inputMsgHandler(msg, send, done) { // eslint-disable-line no-unused-vars
-
     const RED = mod.RED
     let statusColor = 'blue'
 
@@ -72,12 +71,14 @@ async function inputMsgHandler(msg, send, done) { // eslint-disable-line no-unus
         let fname = this.fname
 
         // If "Use pageName"
-        if (this.usePageName === true && ( (msg._uib && msg._uib.pageName) || (msg._ui && msg._ui.pageName) )) {
-            fname = msg._uib ? msg._uib.pageName : msg._ui.pageName
-            const srcNode = RED.nodes.getNode(this.uibId)
-            folder = srcNode.sourceFolder
-        } else {
-            this.warn('Use pageName requested but neither msg._uib nor msg._ui exists')
+        if (this.usePageName === true) {
+            if ( (msg._uib && msg._uib.pageName) || (msg._ui && msg._ui.pageName) ) {
+                fname = msg._uib ? msg._uib.pageName : msg._ui.pageName
+                const srcNode = RED.nodes.getNode(this.uibId)
+                folder = srcNode.sourceFolder
+            } else {
+                this.warn('Use pageName requested but neither msg._uib nor msg._ui exists')
+            }
         }
 
         // If msg.fname or msg.folder provided, override the static setting but only if the static setting is blank

From 4b27846c608166f95e4802d7f9fe42810d962222 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Fri, 1 Dec 2023 14:08:29 +0000
Subject: [PATCH 16/78] Reorg, fixes & updates - see changelog

---
 front-end/ui.esm.js          | 99 ++++++++++++++++++++++++++++--------
 front-end/ui.esm.min.js      |  2 +-
 front-end/ui.esm.min.js.map  |  6 +--
 front-end/ui.iife.js         | 99 ++++++++++++++++++++++++++++--------
 front-end/ui.iife.min.js     |  2 +-
 front-end/ui.iife.min.js.map |  6 +--
 nodes/libs/ui.js             | 99 ++++++++++++++++++++++++++++--------
 src/front-end-module/ui.js   | 99 ++++++++++++++++++++++++++++--------
 8 files changed, 324 insertions(+), 88 deletions(-)

diff --git a/front-end/ui.esm.js b/front-end/ui.esm.js
index 24022542..32163887 100644
--- a/front-end/ui.esm.js
+++ b/front-end/ui.esm.js
@@ -204,13 +204,6 @@ var require_ui = __commonJS({
           this.replaceSlotMarkdown(el, comp);
         }
       }
-      /** External alias for _uiComposeComponent
-       * @param {*} el HTML Element to enhance
-       * @param {*} comp Individual uibuilder ui component spec
-       */
-      uiEnhanceElement(el, comp) {
-        this._uiComposeComponent(el, comp);
-      }
       /** Extend an HTML Element with appended elements using ui components
        * NOTE: This fn follows a strict hierarchy of added components.
        * @param {HTMLElement} parentEl The parent HTML Element we want to append to
@@ -462,6 +455,46 @@ var require_ui = __commonJS({
       // --- end of _uiUpdate ---
       //#endregion ---- -------- ----
       //#region ---- External Methods ----
+      /** Simplistic jQuery-like document CSS query selector, returns an HTML Element
+       * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.
+       * If the selected element is a <template>, returns the first child element.
+       * type {HTMLElement}
+       * @param {string} cssSelector A CSS Selector that identifies the element to return
+       * @returns {HTMLElement|null} Selected HTML element or null
+       */
+      $(cssSelector) {
+        let el = document.querySelector(cssSelector);
+        if (!el) {
+          _a.log(1, "Uib:$", `No element found for CSS selector ${cssSelector}`)();
+          return null;
+        }
+        if (el.nodeName === "TEMPLATE") {
+          el = el.content.firstElementChild;
+          if (!el) {
+            _a.log(0, "Uib:$", `Template selected for CSS selector ${cssSelector} but it is empty`)();
+            return null;
+          }
+        }
+        return el;
+      }
+      /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.
+       * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself
+       * @param {string} cssSelector A CSS Selector that identifies the elements to return
+       * @returns {HTMLElement[]} Array of DOM elements/nodes. Array is empty if selector is not found.
+       */
+      $$(cssSelector) {
+        return Array.from(document.querySelectorAll(cssSelector));
+      }
+      /** Add 1 or several class names to an element
+       * @param {string|string[]} classNames Single or array of classnames
+       * @param {HTMLElement} el HTML Element to add class(es) to
+       */
+      addClass(classNames, el) {
+        if (!Array.isArray(classNames))
+          classNames = [classNames];
+        if (el)
+          el.classList.add(...classNames);
+      }
       /** Converts markdown text input to HTML if the Markdown-IT library is loaded
        * Otherwise simply returns the text
        * @param {string} mdText The input markdown string
@@ -748,6 +781,8 @@ var require_ui = __commonJS({
             if (attrib.name !== "id") {
               thisOut.attributes[attrib.name] = node.attributes[attrib.name].value;
             }
+            if (attrib.name === "class")
+              thisOut.classes = Array.from(node.classList);
           }
         }
         if (node.nodeName === "#text") {
@@ -787,6 +822,20 @@ var require_ui = __commonJS({
           return Promise.reject(new Error("Notifications not permitted by user"));
         }
       }
+      /** Remove All, 1 or more class names from an element
+       * @param {undefined|null|""|string|string[]} classNames Single or array of classnames. If undefined, "" or null, remove all classes
+       * @param {HTMLElement} el HTML Element to add class(es) to
+       */
+      removeClass(classNames, el) {
+        if (!classNames) {
+          el.removeAttribute("class");
+          return;
+        }
+        if (!Array.isArray(classNames))
+          classNames = [classNames];
+        if (el)
+          el.classList.remove(...classNames);
+      }
       // TODO Add multi-slot
       /** Replace or add an HTML element's slot from text or an HTML string
        * Will use DOMPurify if that library has been loaded to window.
@@ -840,9 +889,9 @@ var require_ui = __commonJS({
       showDialog(type, ui, msg) {
         let content = "";
         if (msg.payload && typeof msg.payload === "string")
-          content += msg.payload;
+          content += `<div>${msg.payload}</div>`;
         if (ui.content)
-          content += ui.content;
+          content += `<div>${ui.content}</div>`;
         if (content === "") {
           _a.log(1, "Ui:showDialog", "Toast content is blank. Not shown.")();
           return;
@@ -915,6 +964,7 @@ var require_ui = __commonJS({
           msg = json;
         else
           msg._ui = json;
+        console.log(this);
         this._uiManager(msg);
       }
       /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.
@@ -929,7 +979,9 @@ var require_ui = __commonJS({
         );
         const out = [];
         selection.forEach((node) => {
-          if (propName !== null && propName !== "") {
+          if (propName) {
+            if (propName === "classes")
+              propName = "class";
             let prop = node.getAttribute(propName);
             if (prop === void 0 || prop === null) {
               try {
@@ -943,23 +995,23 @@ var require_ui = __commonJS({
               else
                 out.push(`Property '${propName}' not found`);
             } else {
-              if (prop.constructor.name === "NamedNodeMap") {
-                const p = {};
+              const p = {};
+              const cType = prop.constructor.name.toLowerCase();
+              if (cType === "namednodemap") {
                 for (const key of prop) {
                   p[key.name] = prop[key.name].value;
                 }
-                out.push(p);
-              } else if (!prop.constructor.name.toLowerCase().includes("map")) {
-                out.push({
-                  [propName]: prop
-                });
+              } else if (!cType.includes("map")) {
+                p[propName] = prop;
               } else {
-                const p = {};
+                const p2 = {};
                 for (const key in prop) {
-                  p[key] = prop[key];
+                  p2[key] = prop[key];
                 }
-                out.push(p);
               }
+              if (p.class)
+                p.classes = Array.from(node.classList);
+              out.push(p);
             }
           } else {
             out.push(this.nodeGet(node, cssSelector));
@@ -968,6 +1020,13 @@ var require_ui = __commonJS({
         return out;
       }
       // --- end of uiGet --- //
+      /** External alias for _uiComposeComponent
+       * @param {*} el HTML Element to enhance
+       * @param {*} comp Individual uibuilder ui component spec
+       */
+      uiEnhanceElement(el, comp) {
+        this._uiComposeComponent(el, comp);
+      }
       //#endregion ---- -------- ----
     }, /** Log function - passed in constructor or will be a dummy function
      * @type {function}
diff --git a/front-end/ui.esm.min.js b/front-end/ui.esm.min.js
index 912e78a1..009eaa6a 100644
--- a/front-end/ui.esm.min.js
+++ b/front-end/ui.esm.min.js
@@ -1,2 +1,2 @@
-var g=Object.create;var d=Object.defineProperty;var m=Object.getOwnPropertyDescriptor;var p=Object.getOwnPropertyNames;var b=Object.getPrototypeOf,v=Object.prototype.hasOwnProperty;var E=(l,e,t)=>e in l?d(l,e,{enumerable:!0,configurable:!0,writable:!0,value:t}):l[e]=t;var f=(l=>typeof require<"u"?require:typeof Proxy<"u"?new Proxy(l,{get:(e,t)=>(typeof require<"u"?require:e)[t]}):l)(function(l){if(typeof require<"u")return require.apply(this,arguments);throw Error('Dynamic require of "'+l+'" is not supported')});var S=(l,e)=>()=>(e||l((e={exports:{}}).exports,e),e.exports);var k=(l,e,t,i)=>{if(e&&typeof e=="object"||typeof e=="function")for(let r of p(e))!v.call(l,r)&&r!==t&&d(l,r,{get:()=>e[r],enumerable:!(i=m(e,r))||i.enumerable});return l};var y=(l,e,t)=>(t=l!=null?g(b(l)):{},k(e||!l||!l.__esModule?d(t,"default",{value:l,enumerable:!0}):t,l));var u=(l,e,t)=>(E(l,typeof e!="symbol"?e+"":e,t),t);var C=S((M,w)=>{var a,x=(a=class{constructor(e,t,i){u(this,"version","6.8.0-esm.min");u(this,"sanitiseExtraTags",["uib-var"]);u(this,"sanitiseExtraAttribs",["variable","report","undefined"]);u(this,"window");if(e)this.window=e;else throw new Error("Ui:constructor. Current environment does not include `window`, UI functions cannot be used.");this.document=this.window.document,t?a.log=t:a.log=function(){return function(){}},i?this.syntaxHighlight=i:this.syntaxHighlight=function(){}}_showNotification(e){e.topic&&!e.title&&(e.title=e.topic),e.title||(e.title="uibuilder notification"),e.payload&&!e.body&&(e.body=e.payload),e.body||(e.body=" No message given.");try{let t=new Notification(e.title,e);return new Promise((i,r)=>{t.addEventListener("close",n=>{n.currentTarget.userAction="close",i(n)}),t.addEventListener("click",n=>{n.currentTarget.userAction="click",i(n)}),t.addEventListener("error",n=>{n.currentTarget.userAction="error",r(n)})})}catch{return Promise.reject(new Error("Browser refused to create a Notification"))}}_uiAdd(e,t){a.log("trace","Ui:_uiManager:add","Starting _uiAdd")(),e.components.forEach((i,r)=>{a.log("trace","Ui:_uiAdd:components-forEach:".concat(r),"Component to add: ",i)();let n;switch(i.type){case"html":{i.ns="html",n=this.document.createElement("div");break}case"svg":{i.ns="svg",n=this.document.createElementNS("http://www.w3.org/2000/svg","svg");break}default:{i.ns="dom",n=this.document.createElement(i.type);break}}!i.slot&&e.payload&&(i.slot=e.payload),this._uiComposeComponent(n,i);let s;i.parentEl?s=i.parentEl:e.parentEl?s=e.parentEl:i.parent?s=this.document.querySelector(i.parent):e.parent&&(s=this.document.querySelector(e.parent)),s||(a.log("info","Ui:_uiAdd","No parent found, adding to body")(),s=this.document.querySelector("body")),i.position&&i.position==="first"?s.insertBefore(n,s.firstChild):i.position&&Number.isInteger(Number(i.position))?s.insertBefore(n,s.children[i.position]):s.appendChild(n),i.components&&this._uiExtendEl(n,i.components,i.ns)})}_uiComposeComponent(e,t){t.attributes&&Object.keys(t.attributes).forEach(i=>{i==="class"&&Array.isArray(t.attributes[i])&&t.attributes[i].join(" "),i==="value"&&(e.value=t.attributes[i]),i.startsWith("xlink:")?e.setAttributeNS("http://www.w3.org/1999/xlink",i,t.attributes[i]):e.setAttribute(i,t.attributes[i])}),t.id&&e.setAttribute("id",t.id),t.type==="svg"&&(e.setAttributeNS("http://www.w3.org/2000/xmlns/","xmlns","http://www.w3.org/2000/svg"),e.setAttributeNS("http://www.w3.org/2000/xmlns/","xmlns:xlink","http://www.w3.org/1999/xlink")),t.events&&Object.keys(t.events).forEach(i=>{i.toLowerCase==="onclick"&&(i="click");try{e.addEventListener(i,r=>{new Function("evt","".concat(t.events[i],"(evt)"))(r)})}catch(r){a.log("error","Ui:_uiComposeComponent","Add event '".concat(i,"' for element '").concat(t.type,"': Cannot add event handler. ").concat(r.message))()}}),t.properties&&Object.keys(t.properties).forEach(i=>{e[i]=t.properties[i]}),t.slot&&this.replaceSlot(e,t),t.slotMarkdown&&this.replaceSlotMarkdown(e,t)}uiEnhanceElement(e,t){this._uiComposeComponent(e,t)}_uiExtendEl(e,t,i=""){t.forEach((r,n)=>{a.log("trace","Ui:_uiExtendEl:components-forEach:".concat(n),r)();let s;r.ns=i,r.ns==="html"?(s=e,e.innerHTML=r.slot):r.ns==="svg"?(s=this.document.createElementNS("http://www.w3.org/2000/svg",r.type),this._uiComposeComponent(s,r),e.appendChild(s)):(s=this.document.createElement(r.type==="html"?"div":r.type),this._uiComposeComponent(s,r),e.appendChild(s)),r.components&&this._uiExtendEl(s,r.components,r.ns)})}_uiLoad(e){e.components&&(Array.isArray(e.components)||(e.components=[e.components]),e.components.forEach(async t=>{await Promise.resolve().then(()=>y(f(t)))})),e.srcScripts&&(Array.isArray(e.srcScripts)||(e.srcScripts=[e.srcScripts]),e.srcScripts.forEach(t=>{this.loadScriptSrc(t)})),e.txtScripts&&(Array.isArray(e.txtScripts)||(e.txtScripts=[e.txtScripts]),this.loadScriptTxt(e.txtScripts.join("\n"))),e.srcStyles&&(Array.isArray(e.srcStyles)||(e.srcStyles=[e.srcStyles]),e.srcStyles.forEach(t=>{this.loadStyleSrc(t)})),e.txtStyles&&(Array.isArray(e.txtStyles)||(e.txtStyles=[e.txtStyles]),this.loadStyleTxt(e.txtStyles.join("\n")))}_uiManager(e){e._ui&&(Array.isArray(e._ui)||(e._ui=[e._ui]),e._ui.forEach((t,i)=>{if(!t.method){a.log("error","Ui:_uiManager","No method defined for msg._ui[".concat(i,"]. Ignoring"))();return}switch(t.payload=e.payload,t.topic=e.topic,t.method){case"add":{this._uiAdd(t,!1);break}case"remove":{this._uiRemove(t,!1);break}case"removeAll":{this._uiRemove(t,!0);break}case"replace":{this._uiReplace(t);break}case"update":{this._uiUpdate(t);break}case"load":{this._uiLoad(t);break}case"reload":{this._uiReload();break}case"notify":{this.showDialog("notify",t,e);break}case"alert":{this.showDialog("alert",t,e);break}default:{a.log("error","Ui:_uiManager","Invalid msg._ui[".concat(i,"].method (").concat(t.method,"). Ignoring"))();break}}}))}_uiReload(){a.log("trace","Ui:uiManager:reload","reloading")(),location.reload()}_uiRemove(e,t=!1){e.components.forEach(i=>{let r;t!==!0?r=[this.document.querySelector(i)]:r=this.document.querySelectorAll(i),r.forEach(n=>{try{n.remove()}catch(s){a.log("trace","Ui:_uiRemove","Could not remove. ".concat(s.message))()}})})}_uiReplace(e){a.log("trace","Ui:_uiReplace","Starting")(),e.components.forEach((t,i)=>{a.log("trace","Ui:_uiReplace:components-forEach:".concat(i),"Component to replace: ",t)();let r;if(t.id?r=this.document.getElementById(t.id):t.selector||t.select?r=this.document.querySelector(t.selector):t.name?r=this.document.querySelector('[name="'.concat(t.name,'"]')):t.type&&(r=this.document.querySelector(t.type)),a.log("trace","Ui:_uiReplace:components-forEach:".concat(i),"Element to replace: ",r)(),r==null){a.log("trace","Ui:_uiReplace:components-forEach:".concat(i,":noReplace"),"Cannot find the DOM element. Adding instead.",t)(),this._uiAdd({components:[t]},!1);return}let n;switch(t.type){case"html":{t.ns="html",n=this.document.createElement("div");break}case"svg":{t.ns="svg",n=this.document.createElementNS("http://www.w3.org/2000/svg","svg");break}default:{t.ns="dom",n=this.document.createElement(t.type);break}}this._uiComposeComponent(n,t),r.replaceWith(n),t.components&&this._uiExtendEl(n,t.components,t.ns)})}_uiUpdate(e){a.log("trace","Ui:_uiManager:update","Starting _uiUpdate")(),e.components||(e.components=[Object.assign({},e)]),e.components.forEach((t,i)=>{a.log("trace","_uiUpdate:components-forEach","Component #".concat(i),t)();let r;if(t.id?r=this.document.querySelectorAll("#".concat(t.id)):t.selector||t.select?r=this.document.querySelectorAll(t.selector):t.name?r=this.document.querySelectorAll('[name="'.concat(t.name,'"]')):t.type&&(r=this.document.querySelectorAll(t.type)),r===void 0||r.length<1){a.log("warn","Ui:_uiManager:update","Cannot find the DOM element. Ignoring.",t)();return}a.log("trace","_uiUpdate:components-forEach","Element(s) to update. Count: ".concat(r.length),r)(),!t.slot&&t.payload&&(t.slot=t.payload),r.forEach(n=>{this._uiComposeComponent(n,t)}),t.components&&r.forEach(n=>{a.log("trace","_uiUpdate:components","el",n)(),this._uiUpdate({method:e.method,parentEl:n,components:t.components})})})}convertMarkdown(e){if(!e)return"";if(!this.window.markdownit)return e;let t={html:!0,linkify:!0,_highlight:!0,langPrefix:"language-",highlight(r,n){if(n&&this.window.hljs&&this.window.hljs.getLanguage(n))try{return'<pre class="highlight" data-language="'.concat(n.toUpperCase(),'">\n                                <code class="language-').concat(n,'">').concat(this.window.hljs.highlightAuto(r).value,"</code></pre>")}finally{}return'<pre class="highlight"><code>'.concat(i.utils.escapeHtml(r),"</code></pre>")}},i=this.window.markdownit(t);return i.render(e)}async include(e,t){if(!fetch)return a.log(0,"Ui:include","Current environment does not include `fetch`, skipping.")(),"Current environment does not include `fetch`, skipping.";if(!e)return a.log(0,"Ui:include","url parameter must be provided, skipping.")(),"url parameter must be provided, skipping.";if(!t||!t.id)return a.log(0,"Ui:include","uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.")(),"uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.";let i;try{i=await fetch(e)}catch(h){return a.log(0,"Ui:include","Fetch of file '".concat(e,"' failed. "),h.message)(),h.message}if(!i.ok)return a.log(0,"Ui:include","Fetch of file '".concat(e,"' failed. Status='").concat(i.statusText,"'"))(),i.statusText;let r=await i.headers.get("content-type"),n=null;r&&(r.includes("text/html")?n="html":r.includes("application/json")?n="json":r.includes("multipart/form-data")?n="form":r.includes("image/")?n="image":r.includes("video/")?n="video":r.includes("application/pdf")?n="pdf":r.includes("text/plain")&&(n="text"));let s="",c="Include successful",o;switch(n){case"html":{o=await i.text(),s=o;break}case"json":{o=await i.json(),s='<pre class="syntax-highlight">',s+=this.syntaxHighlight(o),s+="</pre>";break}case"form":{o=await i.formData(),s='<pre class="syntax-highlight">',s+=this.syntaxHighlight(o),s+="</pre>";break}case"image":{o=await i.blob(),s='<img src="'.concat(URL.createObjectURL(o),'">'),this.window.DOMPurify&&(c="Include successful. BUT DOMPurify loaded which may block its use.",a.log("warn","Ui:include:image",c)());break}case"video":{o=await i.blob(),s='<video controls autoplay><source src="'.concat(URL.createObjectURL(o),'"></video>'),this.window.DOMPurify&&(c="Include successful. BUT DOMPurify loaded which may block its use.",a.log("warn","Ui:include:video",c)());break}case"pdf":case"text":default:{o=await i.blob(),s='<iframe style="resize:both;width:inherit;height:inherit;" src="'.concat(URL.createObjectURL(o),'">'),this.window.DOMPurify&&(c="Include successful. BUT DOMPurify loaded which may block its use.",a.log("warn","Ui:include:".concat(n),c)());break}}return t.type="div",t.slot=s,t.parent||(t.parent="body"),t.attributes||(t.attributes={class:"included"}),this._uiReplace({components:[t]}),a.log("trace","Ui:include:".concat(n),c)(),c}loadScriptSrc(e){let t=this.document.createElement("script");t.src=e,t.async=!1,this.document.head.appendChild(t)}loadScriptTxt(e){let t=this.document.createElement("script");t.async=!1,t.textContent=e,this.document.head.appendChild(t)}loadStyleSrc(e){let t=this.document.createElement("link");t.href=e,t.rel="stylesheet",t.type="text/css",this.document.head.appendChild(t)}loadStyleTxt(e){let t=this.document.createElement("style");t.textContent=e,this.document.head.appendChild(t)}loadui(e){if(!fetch){a.log(0,"Ui:loadui","Current environment does not include `fetch`, skipping.")();return}if(!e){a.log(0,"Ui:loadui","url parameter must be provided, skipping.")();return}fetch(e).then(t=>{if(t.ok===!1)throw new Error("Could not load '".concat(e,"'. Status ").concat(t.status,", Error: ").concat(t.statusText));a.log("trace","Ui:loadui:then1","Loaded '".concat(e,"'. Status ").concat(t.status,", ").concat(t.statusText))();let i=t.headers.get("content-type");if(!i||!i.includes("application/json"))throw new TypeError("Fetch '".concat(e,"' did not return JSON, ignoring"));return t.json()}).then(t=>t!==void 0?(a.log("trace","Ui:loadui:then2","Parsed JSON successfully obtained")(),this._uiManager({_ui:t}),!0):!1).catch(t=>{a.log("warn","Ui:loadui:catch","Error. ",t)()})}nodeGet(e,t){let i={id:e.id===""?void 0:e.id,name:e.name,children:e.childNodes.length,type:e.nodeName,attributes:void 0,isUserInput:!!e.validity,userInput:e.validity?{value:e.value,validity:void 0,willValidate:e.willValidate,valueAsDate:e.valueAsDate,valueAsNumber:e.valueAsNumber,type:e.type}:void 0};if(["UL","OL"].includes(e.nodeName)){let r=this.document.querySelectorAll("".concat(t," li"));r&&(i.list={entries:r.length})}if(e.nodeName==="DL"){let r=this.document.querySelectorAll("".concat(t," dt"));r&&(i.list={entries:r.length})}if(e.nodeName==="TABLE"){let r=this.document.querySelectorAll("".concat(t," > tbody > tr")),n=this.document.querySelectorAll("".concat(t," > thead > tr")),s=this.document.querySelectorAll("".concat(t," > tbody > tr:last-child > *"));(r||n||s)&&(i.table={headRows:n?n.length:0,bodyRows:r?r.length:0,columns:s?s.length:0})}if(e.nodeName!=="#text"&&e.attributes&&e.attributes.length>0){i.attributes={};for(let r of e.attributes)r.name!=="id"&&(i.attributes[r.name]=e.attributes[r.name].value)}e.nodeName==="#text"&&(i.text=e.textContent),e.validity&&(i.userInput.validity={});for(let r in e.validity)i.userInput.validity[r]=e.validity[r];return i}async notification(e){if(typeof e=="string"&&(e={body:e}),typeof Notification>"u")return Promise.reject(new Error("Notifications not available in this browser"));let t=Notification.permission;return t==="denied"?Promise.reject(new Error("Notifications not permitted by user")):t==="granted"?this._showNotification(e):(t=await Notification.requestPermission(),t==="granted"?this._showNotification(e):Promise.reject(new Error("Notifications not permitted by user")))}replaceSlot(e,t){t.slot&&e&&(this.window.DOMPurify&&(t.slot=this.window.DOMPurify.sanitize(t.slot)),e.innerHTML=t.slot)}replaceSlotMarkdown(e,t){e&&t.slotMarkdown&&(t.slotMarkdown=this.convertMarkdown(t.slotMarkdown),t.slotMarkdown=this.sanitiseHTML(t.slotMarkdown),e.innerHTML=t.slotMarkdown)}sanitiseHTML(e){return this.window.DOMPurify?this.window.DOMPurify.sanitize(e,{ADD_TAGS:this.sanitiseExtraTags,ADD_ATTR:this.sanitiseExtraAttribs}):e}showDialog(e,t,i){let r="";if(i.payload&&typeof i.payload=="string"&&(r+=i.payload),t.content&&(r+=t.content),r===""){a.log(1,"Ui:showDialog","Toast content is blank. Not shown.")();return}!t.title&&i.topic&&(t.title=i.topic),t.title&&(r='<p class="toast-head">'.concat(t.title,"</p><p>").concat(r,"</p>")),t.noAutohide&&(t.noAutoHide=t.noAutohide),t.noAutoHide&&(t.autohide=!t.noAutoHide),t.autoHideDelay?(t.autohide||(t.autohide=!0),t.delay=t.autoHideDelay):t.autoHideDelay=1e4,Object.prototype.hasOwnProperty.call(t,"autohide")||(t.autohide=!0),e==="alert"&&(t.modal=!0,t.autohide=!1,r='<svg viewBox="0 0 192.146 192.146" style="width:30;background-color:transparent;"><path d="M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z" /></svg> '.concat(r));let n=this.document.getElementById("toaster");n===null&&(n=this.document.createElement("div"),n.id="toaster",n.title="Click to clear all notifcations",n.setAttribute("class","toaster"),n.setAttribute("role","dialog"),n.setAttribute("arial-label","Toast message"),n.onclick=function(){n.remove()},this.document.body.insertAdjacentElement("afterbegin",n));let s=this.document.createElement("div");s.title="Click to clear this notifcation",s.setAttribute("class","toast ".concat(t.variant?t.variant:""," ").concat(e)),s.innerHTML=r,s.setAttribute("role","alertdialog"),t.modal&&s.setAttribute("aria-modal",t.modal),s.onclick=function(c){c.stopPropagation(),s.remove(),n.childElementCount<1&&n.remove()},n.insertAdjacentElement(t.appendToast===!0?"beforeend":"afterbegin",s),t.autohide===!0&&setInterval(()=>{s.remove(),n.childElementCount<1&&n.remove()},t.autoHideDelay)}ui(e){let t={};e._ui?t=e:t._ui=e,this._uiManager(t)}uiGet(e,t=null){let i=this.document.querySelectorAll(e),r=[];return i.forEach(n=>{if(t!==null&&t!==""){let s=n.getAttribute(t);if(s==null)try{s=n[t]}catch{}if(s==null)t.toLowerCase()==="value"?r.push(n.innerText):r.push("Property '".concat(t,"' not found"));else if(s.constructor.name==="NamedNodeMap"){let c={};for(let o of s)c[o.name]=s[o.name].value;r.push(c)}else if(!s.constructor.name.toLowerCase().includes("map"))r.push({[t]:s});else{let c={};for(let o in s)c[o]=s[o];r.push(c)}}else r.push(this.nodeGet(n,e))}),r}},u(a,"log"),a);w.exports=x});export default C();
+var m=Object.create;var h=Object.defineProperty;var p=Object.getOwnPropertyDescriptor;var b=Object.getOwnPropertyNames;var v=Object.getPrototypeOf,E=Object.prototype.hasOwnProperty;var S=(l,e,t)=>e in l?h(l,e,{enumerable:!0,configurable:!0,writable:!0,value:t}):l[e]=t;var y=(l=>typeof require<"u"?require:typeof Proxy<"u"?new Proxy(l,{get:(e,t)=>(typeof require<"u"?require:e)[t]}):l)(function(l){if(typeof require<"u")return require.apply(this,arguments);throw Error('Dynamic require of "'+l+'" is not supported')});var k=(l,e)=>()=>(e||l((e={exports:{}}).exports,e),e.exports);var $=(l,e,t,i)=>{if(e&&typeof e=="object"||typeof e=="function")for(let r of b(e))!E.call(l,r)&&r!==t&&h(l,r,{get:()=>e[r],enumerable:!(i=p(e,r))||i.enumerable});return l};var g=(l,e,t)=>(t=l!=null?m(v(l)):{},$(e||!l||!l.__esModule?h(t,"default",{value:l,enumerable:!0}):t,l));var d=(l,e,t)=>(S(l,typeof e!="symbol"?e+"":e,t),t);var C=k((M,w)=>{var a,x=(a=class{constructor(e,t,i){d(this,"version","6.8.0-esm.min");d(this,"sanitiseExtraTags",["uib-var"]);d(this,"sanitiseExtraAttribs",["variable","report","undefined"]);d(this,"window");if(e)this.window=e;else throw new Error("Ui:constructor. Current environment does not include `window`, UI functions cannot be used.");this.document=this.window.document,t?a.log=t:a.log=function(){return function(){}},i?this.syntaxHighlight=i:this.syntaxHighlight=function(){}}_showNotification(e){e.topic&&!e.title&&(e.title=e.topic),e.title||(e.title="uibuilder notification"),e.payload&&!e.body&&(e.body=e.payload),e.body||(e.body=" No message given.");try{let t=new Notification(e.title,e);return new Promise((i,r)=>{t.addEventListener("close",n=>{n.currentTarget.userAction="close",i(n)}),t.addEventListener("click",n=>{n.currentTarget.userAction="click",i(n)}),t.addEventListener("error",n=>{n.currentTarget.userAction="error",r(n)})})}catch{return Promise.reject(new Error("Browser refused to create a Notification"))}}_uiAdd(e,t){a.log("trace","Ui:_uiManager:add","Starting _uiAdd")(),e.components.forEach((i,r)=>{a.log("trace","Ui:_uiAdd:components-forEach:".concat(r),"Component to add: ",i)();let n;switch(i.type){case"html":{i.ns="html",n=this.document.createElement("div");break}case"svg":{i.ns="svg",n=this.document.createElementNS("http://www.w3.org/2000/svg","svg");break}default:{i.ns="dom",n=this.document.createElement(i.type);break}}!i.slot&&e.payload&&(i.slot=e.payload),this._uiComposeComponent(n,i);let s;i.parentEl?s=i.parentEl:e.parentEl?s=e.parentEl:i.parent?s=this.document.querySelector(i.parent):e.parent&&(s=this.document.querySelector(e.parent)),s||(a.log("info","Ui:_uiAdd","No parent found, adding to body")(),s=this.document.querySelector("body")),i.position&&i.position==="first"?s.insertBefore(n,s.firstChild):i.position&&Number.isInteger(Number(i.position))?s.insertBefore(n,s.children[i.position]):s.appendChild(n),i.components&&this._uiExtendEl(n,i.components,i.ns)})}_uiComposeComponent(e,t){t.attributes&&Object.keys(t.attributes).forEach(i=>{i==="class"&&Array.isArray(t.attributes[i])&&t.attributes[i].join(" "),i==="value"&&(e.value=t.attributes[i]),i.startsWith("xlink:")?e.setAttributeNS("http://www.w3.org/1999/xlink",i,t.attributes[i]):e.setAttribute(i,t.attributes[i])}),t.id&&e.setAttribute("id",t.id),t.type==="svg"&&(e.setAttributeNS("http://www.w3.org/2000/xmlns/","xmlns","http://www.w3.org/2000/svg"),e.setAttributeNS("http://www.w3.org/2000/xmlns/","xmlns:xlink","http://www.w3.org/1999/xlink")),t.events&&Object.keys(t.events).forEach(i=>{i.toLowerCase==="onclick"&&(i="click");try{e.addEventListener(i,r=>{new Function("evt","".concat(t.events[i],"(evt)"))(r)})}catch(r){a.log("error","Ui:_uiComposeComponent","Add event '".concat(i,"' for element '").concat(t.type,"': Cannot add event handler. ").concat(r.message))()}}),t.properties&&Object.keys(t.properties).forEach(i=>{e[i]=t.properties[i]}),t.slot&&this.replaceSlot(e,t),t.slotMarkdown&&this.replaceSlotMarkdown(e,t)}_uiExtendEl(e,t,i=""){t.forEach((r,n)=>{a.log("trace","Ui:_uiExtendEl:components-forEach:".concat(n),r)();let s;r.ns=i,r.ns==="html"?(s=e,e.innerHTML=r.slot):r.ns==="svg"?(s=this.document.createElementNS("http://www.w3.org/2000/svg",r.type),this._uiComposeComponent(s,r),e.appendChild(s)):(s=this.document.createElement(r.type==="html"?"div":r.type),this._uiComposeComponent(s,r),e.appendChild(s)),r.components&&this._uiExtendEl(s,r.components,r.ns)})}_uiLoad(e){e.components&&(Array.isArray(e.components)||(e.components=[e.components]),e.components.forEach(async t=>{await Promise.resolve().then(()=>g(y(t)))})),e.srcScripts&&(Array.isArray(e.srcScripts)||(e.srcScripts=[e.srcScripts]),e.srcScripts.forEach(t=>{this.loadScriptSrc(t)})),e.txtScripts&&(Array.isArray(e.txtScripts)||(e.txtScripts=[e.txtScripts]),this.loadScriptTxt(e.txtScripts.join("\n"))),e.srcStyles&&(Array.isArray(e.srcStyles)||(e.srcStyles=[e.srcStyles]),e.srcStyles.forEach(t=>{this.loadStyleSrc(t)})),e.txtStyles&&(Array.isArray(e.txtStyles)||(e.txtStyles=[e.txtStyles]),this.loadStyleTxt(e.txtStyles.join("\n")))}_uiManager(e){e._ui&&(Array.isArray(e._ui)||(e._ui=[e._ui]),e._ui.forEach((t,i)=>{if(!t.method){a.log("error","Ui:_uiManager","No method defined for msg._ui[".concat(i,"]. Ignoring"))();return}switch(t.payload=e.payload,t.topic=e.topic,t.method){case"add":{this._uiAdd(t,!1);break}case"remove":{this._uiRemove(t,!1);break}case"removeAll":{this._uiRemove(t,!0);break}case"replace":{this._uiReplace(t);break}case"update":{this._uiUpdate(t);break}case"load":{this._uiLoad(t);break}case"reload":{this._uiReload();break}case"notify":{this.showDialog("notify",t,e);break}case"alert":{this.showDialog("alert",t,e);break}default:{a.log("error","Ui:_uiManager","Invalid msg._ui[".concat(i,"].method (").concat(t.method,"). Ignoring"))();break}}}))}_uiReload(){a.log("trace","Ui:uiManager:reload","reloading")(),location.reload()}_uiRemove(e,t=!1){e.components.forEach(i=>{let r;t!==!0?r=[this.document.querySelector(i)]:r=this.document.querySelectorAll(i),r.forEach(n=>{try{n.remove()}catch(s){a.log("trace","Ui:_uiRemove","Could not remove. ".concat(s.message))()}})})}_uiReplace(e){a.log("trace","Ui:_uiReplace","Starting")(),e.components.forEach((t,i)=>{a.log("trace","Ui:_uiReplace:components-forEach:".concat(i),"Component to replace: ",t)();let r;if(t.id?r=this.document.getElementById(t.id):t.selector||t.select?r=this.document.querySelector(t.selector):t.name?r=this.document.querySelector('[name="'.concat(t.name,'"]')):t.type&&(r=this.document.querySelector(t.type)),a.log("trace","Ui:_uiReplace:components-forEach:".concat(i),"Element to replace: ",r)(),r==null){a.log("trace","Ui:_uiReplace:components-forEach:".concat(i,":noReplace"),"Cannot find the DOM element. Adding instead.",t)(),this._uiAdd({components:[t]},!1);return}let n;switch(t.type){case"html":{t.ns="html",n=this.document.createElement("div");break}case"svg":{t.ns="svg",n=this.document.createElementNS("http://www.w3.org/2000/svg","svg");break}default:{t.ns="dom",n=this.document.createElement(t.type);break}}this._uiComposeComponent(n,t),r.replaceWith(n),t.components&&this._uiExtendEl(n,t.components,t.ns)})}_uiUpdate(e){a.log("trace","Ui:_uiManager:update","Starting _uiUpdate")(),e.components||(e.components=[Object.assign({},e)]),e.components.forEach((t,i)=>{a.log("trace","_uiUpdate:components-forEach","Component #".concat(i),t)();let r;if(t.id?r=this.document.querySelectorAll("#".concat(t.id)):t.selector||t.select?r=this.document.querySelectorAll(t.selector):t.name?r=this.document.querySelectorAll('[name="'.concat(t.name,'"]')):t.type&&(r=this.document.querySelectorAll(t.type)),r===void 0||r.length<1){a.log("warn","Ui:_uiManager:update","Cannot find the DOM element. Ignoring.",t)();return}a.log("trace","_uiUpdate:components-forEach","Element(s) to update. Count: ".concat(r.length),r)(),!t.slot&&t.payload&&(t.slot=t.payload),r.forEach(n=>{this._uiComposeComponent(n,t)}),t.components&&r.forEach(n=>{a.log("trace","_uiUpdate:components","el",n)(),this._uiUpdate({method:e.method,parentEl:n,components:t.components})})})}$(e){let t=document.querySelector(e);return t?t.nodeName==="TEMPLATE"&&(t=t.content.firstElementChild,!t)?(a.log(0,"Uib:$","Template selected for CSS selector ".concat(e," but it is empty"))(),null):t:(a.log(1,"Uib:$","No element found for CSS selector ".concat(e))(),null)}$$(e){return Array.from(document.querySelectorAll(e))}addClass(e,t){Array.isArray(e)||(e=[e]),t&&t.classList.add(...e)}convertMarkdown(e){if(!e)return"";if(!this.window.markdownit)return e;let t={html:!0,linkify:!0,_highlight:!0,langPrefix:"language-",highlight(r,n){if(n&&this.window.hljs&&this.window.hljs.getLanguage(n))try{return'<pre class="highlight" data-language="'.concat(n.toUpperCase(),'">\n                                <code class="language-').concat(n,'">').concat(this.window.hljs.highlightAuto(r).value,"</code></pre>")}finally{}return'<pre class="highlight"><code>'.concat(i.utils.escapeHtml(r),"</code></pre>")}},i=this.window.markdownit(t);return i.render(e)}async include(e,t){if(!fetch)return a.log(0,"Ui:include","Current environment does not include `fetch`, skipping.")(),"Current environment does not include `fetch`, skipping.";if(!e)return a.log(0,"Ui:include","url parameter must be provided, skipping.")(),"url parameter must be provided, skipping.";if(!t||!t.id)return a.log(0,"Ui:include","uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.")(),"uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.";let i;try{i=await fetch(e)}catch(u){return a.log(0,"Ui:include","Fetch of file '".concat(e,"' failed. "),u.message)(),u.message}if(!i.ok)return a.log(0,"Ui:include","Fetch of file '".concat(e,"' failed. Status='").concat(i.statusText,"'"))(),i.statusText;let r=await i.headers.get("content-type"),n=null;r&&(r.includes("text/html")?n="html":r.includes("application/json")?n="json":r.includes("multipart/form-data")?n="form":r.includes("image/")?n="image":r.includes("video/")?n="video":r.includes("application/pdf")?n="pdf":r.includes("text/plain")&&(n="text"));let s="",o="Include successful",c;switch(n){case"html":{c=await i.text(),s=c;break}case"json":{c=await i.json(),s='<pre class="syntax-highlight">',s+=this.syntaxHighlight(c),s+="</pre>";break}case"form":{c=await i.formData(),s='<pre class="syntax-highlight">',s+=this.syntaxHighlight(c),s+="</pre>";break}case"image":{c=await i.blob(),s='<img src="'.concat(URL.createObjectURL(c),'">'),this.window.DOMPurify&&(o="Include successful. BUT DOMPurify loaded which may block its use.",a.log("warn","Ui:include:image",o)());break}case"video":{c=await i.blob(),s='<video controls autoplay><source src="'.concat(URL.createObjectURL(c),'"></video>'),this.window.DOMPurify&&(o="Include successful. BUT DOMPurify loaded which may block its use.",a.log("warn","Ui:include:video",o)());break}case"pdf":case"text":default:{c=await i.blob(),s='<iframe style="resize:both;width:inherit;height:inherit;" src="'.concat(URL.createObjectURL(c),'">'),this.window.DOMPurify&&(o="Include successful. BUT DOMPurify loaded which may block its use.",a.log("warn","Ui:include:".concat(n),o)());break}}return t.type="div",t.slot=s,t.parent||(t.parent="body"),t.attributes||(t.attributes={class:"included"}),this._uiReplace({components:[t]}),a.log("trace","Ui:include:".concat(n),o)(),o}loadScriptSrc(e){let t=this.document.createElement("script");t.src=e,t.async=!1,this.document.head.appendChild(t)}loadScriptTxt(e){let t=this.document.createElement("script");t.async=!1,t.textContent=e,this.document.head.appendChild(t)}loadStyleSrc(e){let t=this.document.createElement("link");t.href=e,t.rel="stylesheet",t.type="text/css",this.document.head.appendChild(t)}loadStyleTxt(e){let t=this.document.createElement("style");t.textContent=e,this.document.head.appendChild(t)}loadui(e){if(!fetch){a.log(0,"Ui:loadui","Current environment does not include `fetch`, skipping.")();return}if(!e){a.log(0,"Ui:loadui","url parameter must be provided, skipping.")();return}fetch(e).then(t=>{if(t.ok===!1)throw new Error("Could not load '".concat(e,"'. Status ").concat(t.status,", Error: ").concat(t.statusText));a.log("trace","Ui:loadui:then1","Loaded '".concat(e,"'. Status ").concat(t.status,", ").concat(t.statusText))();let i=t.headers.get("content-type");if(!i||!i.includes("application/json"))throw new TypeError("Fetch '".concat(e,"' did not return JSON, ignoring"));return t.json()}).then(t=>t!==void 0?(a.log("trace","Ui:loadui:then2","Parsed JSON successfully obtained")(),this._uiManager({_ui:t}),!0):!1).catch(t=>{a.log("warn","Ui:loadui:catch","Error. ",t)()})}nodeGet(e,t){let i={id:e.id===""?void 0:e.id,name:e.name,children:e.childNodes.length,type:e.nodeName,attributes:void 0,isUserInput:!!e.validity,userInput:e.validity?{value:e.value,validity:void 0,willValidate:e.willValidate,valueAsDate:e.valueAsDate,valueAsNumber:e.valueAsNumber,type:e.type}:void 0};if(["UL","OL"].includes(e.nodeName)){let r=this.document.querySelectorAll("".concat(t," li"));r&&(i.list={entries:r.length})}if(e.nodeName==="DL"){let r=this.document.querySelectorAll("".concat(t," dt"));r&&(i.list={entries:r.length})}if(e.nodeName==="TABLE"){let r=this.document.querySelectorAll("".concat(t," > tbody > tr")),n=this.document.querySelectorAll("".concat(t," > thead > tr")),s=this.document.querySelectorAll("".concat(t," > tbody > tr:last-child > *"));(r||n||s)&&(i.table={headRows:n?n.length:0,bodyRows:r?r.length:0,columns:s?s.length:0})}if(e.nodeName!=="#text"&&e.attributes&&e.attributes.length>0){i.attributes={};for(let r of e.attributes)r.name!=="id"&&(i.attributes[r.name]=e.attributes[r.name].value),r.name==="class"&&(i.classes=Array.from(e.classList))}e.nodeName==="#text"&&(i.text=e.textContent),e.validity&&(i.userInput.validity={});for(let r in e.validity)i.userInput.validity[r]=e.validity[r];return i}async notification(e){if(typeof e=="string"&&(e={body:e}),typeof Notification>"u")return Promise.reject(new Error("Notifications not available in this browser"));let t=Notification.permission;return t==="denied"?Promise.reject(new Error("Notifications not permitted by user")):t==="granted"?this._showNotification(e):(t=await Notification.requestPermission(),t==="granted"?this._showNotification(e):Promise.reject(new Error("Notifications not permitted by user")))}removeClass(e,t){if(!e){t.removeAttribute("class");return}Array.isArray(e)||(e=[e]),t&&t.classList.remove(...e)}replaceSlot(e,t){t.slot&&e&&(this.window.DOMPurify&&(t.slot=this.window.DOMPurify.sanitize(t.slot)),e.innerHTML=t.slot)}replaceSlotMarkdown(e,t){e&&t.slotMarkdown&&(t.slotMarkdown=this.convertMarkdown(t.slotMarkdown),t.slotMarkdown=this.sanitiseHTML(t.slotMarkdown),e.innerHTML=t.slotMarkdown)}sanitiseHTML(e){return this.window.DOMPurify?this.window.DOMPurify.sanitize(e,{ADD_TAGS:this.sanitiseExtraTags,ADD_ATTR:this.sanitiseExtraAttribs}):e}showDialog(e,t,i){let r="";if(i.payload&&typeof i.payload=="string"&&(r+="<div>".concat(i.payload,"</div>")),t.content&&(r+="<div>".concat(t.content,"</div>")),r===""){a.log(1,"Ui:showDialog","Toast content is blank. Not shown.")();return}!t.title&&i.topic&&(t.title=i.topic),t.title&&(r='<p class="toast-head">'.concat(t.title,"</p><p>").concat(r,"</p>")),t.noAutohide&&(t.noAutoHide=t.noAutohide),t.noAutoHide&&(t.autohide=!t.noAutoHide),t.autoHideDelay?(t.autohide||(t.autohide=!0),t.delay=t.autoHideDelay):t.autoHideDelay=1e4,Object.prototype.hasOwnProperty.call(t,"autohide")||(t.autohide=!0),e==="alert"&&(t.modal=!0,t.autohide=!1,r='<svg viewBox="0 0 192.146 192.146" style="width:30;background-color:transparent;"><path d="M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z" /></svg> '.concat(r));let n=this.document.getElementById("toaster");n===null&&(n=this.document.createElement("div"),n.id="toaster",n.title="Click to clear all notifcations",n.setAttribute("class","toaster"),n.setAttribute("role","dialog"),n.setAttribute("arial-label","Toast message"),n.onclick=function(){n.remove()},this.document.body.insertAdjacentElement("afterbegin",n));let s=this.document.createElement("div");s.title="Click to clear this notifcation",s.setAttribute("class","toast ".concat(t.variant?t.variant:""," ").concat(e)),s.innerHTML=r,s.setAttribute("role","alertdialog"),t.modal&&s.setAttribute("aria-modal",t.modal),s.onclick=function(o){o.stopPropagation(),s.remove(),n.childElementCount<1&&n.remove()},n.insertAdjacentElement(t.appendToast===!0?"beforeend":"afterbegin",s),t.autohide===!0&&setInterval(()=>{s.remove(),n.childElementCount<1&&n.remove()},t.autoHideDelay)}ui(e){let t={};e._ui?t=e:t._ui=e,console.log(this),this._uiManager(t)}uiGet(e,t=null){let i=this.document.querySelectorAll(e),r=[];return i.forEach(n=>{if(t){t==="classes"&&(t="class");let s=n.getAttribute(t);if(s==null)try{s=n[t]}catch{}if(s==null)t.toLowerCase()==="value"?r.push(n.innerText):r.push("Property '".concat(t,"' not found"));else{let o={},c=s.constructor.name.toLowerCase();if(c==="namednodemap")for(let u of s)o[u.name]=s[u.name].value;else if(!c.includes("map"))o[t]=s;else{let u={};for(let f in s)u[f]=s[f]}o.class&&(o.classes=Array.from(n.classList)),r.push(o)}}else r.push(this.nodeGet(n,e))}),r}uiEnhanceElement(e,t){this._uiComposeComponent(e,t)}},d(a,"log"),a);w.exports=x});export default C();
 //# sourceMappingURL=ui.esm.min.js.map
diff --git a/front-end/ui.esm.min.js.map b/front-end/ui.esm.min.js.map
index 9c12a21d..18b813f0 100644
--- a/front-end/ui.esm.min.js.map
+++ b/front-end/ui.esm.min.js.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
   "sources": ["src/front-end-module/ui.js"],
-  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\n// Namespaces - See https://stackoverflow.com/a/52572048/1309986\n// const NAMESPACES = {\n//     svg: 'http://www.w3.org/2000/svg',\n//     html: 'http://www.w3.org/1999/xhtml',\n//     xml: 'http://www.w3.org/XML/1998/namespace',\n//     xlink: 'http://www.w3.org/1999/xlink',\n//     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n// }\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    //#region ---- Internal Methods ----\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                if (attrib === 'class' && Array.isArray(comp.attributes[attrib])) comp.attributes[attrib].join(' ')\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    /** External alias for _uiComposeComponent\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n    } // --- end of _uiManager ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    //#endregion ---- -------- ----\n    //#region ---- External Methods ----\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. 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Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += msg.payload\n        if (ui.content) content += ui.content\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. 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Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        this._uiManager(msg)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. 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+  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\n// Namespaces - See https://stackoverflow.com/a/52572048/1309986\n// const NAMESPACES = {\n//     svg: 'http://www.w3.org/2000/svg',\n//     html: 'http://www.w3.org/1999/xhtml',\n//     xml: 'http://www.w3.org/XML/1998/namespace',\n//     xlink: 'http://www.w3.org/1999/xlink',\n//     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n// }\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    //#region ---- Internal Methods ----\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                if (attrib === 'class' && Array.isArray(comp.attributes[attrib])) comp.attributes[attrib].join(' ')\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n    } // --- end of _uiManager ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    //#endregion ---- -------- ----\n    //#region ---- External Methods ----\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {HTMLElement|null} Selected HTML element or null\n     */\n    $(cssSelector) {\n        /** @type {*} Some kind of HTML element */\n        let el = document.querySelector(cssSelector)\n\n        if (!el) {\n            Ui.log(1, 'Uib:$', `No element found for CSS selector ${cssSelector}`)()\n            return null\n        }\n\n        if ( el.nodeName === 'TEMPLATE' ) {\n            el = el.content.firstElementChild\n            if (!el) {\n                Ui.log(0, 'Uib:$', `Template selected for CSS selector ${cssSelector} but it is empty`)()\n                return null\n            }\n        }\n\n        return el\n    }\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {string} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {HTMLElement[]} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$(cssSelector) {\n        return Array.from(document.querySelectorAll(cssSelector))\n    }\n\n    /** Add 1 or several class names to an element\n     * @param {string|string[]} classNames Single or array of classnames\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    addClass(classNames, el) {\n        if (!Array.isArray(classNames)) classNames = [classNames]\n        if (el) el.classList.add(...classNames)\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n                if (attrib.name === 'class') thisOut.classes = Array.from(node.classList)\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    /** Remove All, 1 or more class names from an element\n     * @param {undefined|null|\"\"|string|string[]} classNames Single or array of classnames. If undefined, \"\" or null, remove all classes\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    removeClass(classNames, el) {\n        if (!classNames) {\n            el.removeAttribute('class')\n            return\n        }\n        if (!Array.isArray(classNames)) classNames = [classNames]\n        if (el) el.classList.remove(...classNames)\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += `<div>${msg.payload}</div>`\n        if (ui.content) content += `<div>${ui.content}</div>`\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        console.log(this)\n        this._uiManager(msg)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName) {\n                if (propName === 'classes') propName = 'class'\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    const p = {}\n                    // Nightmare of different object types in a DOM Element!\n                    const cType = prop.constructor.name.toLowerCase()\n                    if (cType === 'namednodemap') {\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                    } else if (!cType.includes('map')) { // Ordinary properties (not a mapped type)\n                        p[propName] = prop\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                    }\n                    if (p.class) p.classes = Array.from(node.classList)\n                    out.push(p)\n                }\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    /** External alias for _uiComposeComponent\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    //#endregion ---- -------- ----\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n"],
+  "mappings": 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+  "names": ["require_ui", "__commonJSMin", "exports", "module", "_a", "Ui", "win", "extLog", "jsonHighlight", "__publicField", "config", "notify", "resolve", "reject", "ev", "ui", "isRecurse", "compToAdd", "i", "newEl", "elParent", "el", "comp", "attrib", "type", "evt", "err", "prop", "parentEl", "components", "ns", "component", "__toESM", "__require", "script", "sheet", "msg", "all", "compToRemove", "els", "compToReplace", "elToReplace", "compToUpd", "elToUpd", "cssSelector", "classNames", "mdText", "opts", "str", "lang", "md", "url", "uiOptions", "response", "error", "contentType", "slot", "txtReturn", "data", "newScript", "textFn", "newStyle", "node", "thisOut", "listEntries", "bodyEntries", "headEntries", "cols", "v", "permit", "html", "content", "toaster", "toast", "json", "propName", "selection", "out", "p", "cType", "key"]
 }
diff --git a/front-end/ui.iife.js b/front-end/ui.iife.js
index a8b3cc10..edc13f52 100644
--- a/front-end/ui.iife.js
+++ b/front-end/ui.iife.js
@@ -205,13 +205,6 @@
             this.replaceSlotMarkdown(el, comp);
           }
         }
-        /** External alias for _uiComposeComponent
-         * @param {*} el HTML Element to enhance
-         * @param {*} comp Individual uibuilder ui component spec
-         */
-        uiEnhanceElement(el, comp) {
-          this._uiComposeComponent(el, comp);
-        }
         /** Extend an HTML Element with appended elements using ui components
          * NOTE: This fn follows a strict hierarchy of added components.
          * @param {HTMLElement} parentEl The parent HTML Element we want to append to
@@ -463,6 +456,46 @@
         // --- end of _uiUpdate ---
         //#endregion ---- -------- ----
         //#region ---- External Methods ----
+        /** Simplistic jQuery-like document CSS query selector, returns an HTML Element
+         * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.
+         * If the selected element is a <template>, returns the first child element.
+         * type {HTMLElement}
+         * @param {string} cssSelector A CSS Selector that identifies the element to return
+         * @returns {HTMLElement|null} Selected HTML element or null
+         */
+        $(cssSelector) {
+          let el = document.querySelector(cssSelector);
+          if (!el) {
+            _a.log(1, "Uib:$", `No element found for CSS selector ${cssSelector}`)();
+            return null;
+          }
+          if (el.nodeName === "TEMPLATE") {
+            el = el.content.firstElementChild;
+            if (!el) {
+              _a.log(0, "Uib:$", `Template selected for CSS selector ${cssSelector} but it is empty`)();
+              return null;
+            }
+          }
+          return el;
+        }
+        /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.
+         * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself
+         * @param {string} cssSelector A CSS Selector that identifies the elements to return
+         * @returns {HTMLElement[]} Array of DOM elements/nodes. Array is empty if selector is not found.
+         */
+        $$(cssSelector) {
+          return Array.from(document.querySelectorAll(cssSelector));
+        }
+        /** Add 1 or several class names to an element
+         * @param {string|string[]} classNames Single or array of classnames
+         * @param {HTMLElement} el HTML Element to add class(es) to
+         */
+        addClass(classNames, el) {
+          if (!Array.isArray(classNames))
+            classNames = [classNames];
+          if (el)
+            el.classList.add(...classNames);
+        }
         /** Converts markdown text input to HTML if the Markdown-IT library is loaded
          * Otherwise simply returns the text
          * @param {string} mdText The input markdown string
@@ -749,6 +782,8 @@
               if (attrib.name !== "id") {
                 thisOut.attributes[attrib.name] = node.attributes[attrib.name].value;
               }
+              if (attrib.name === "class")
+                thisOut.classes = Array.from(node.classList);
             }
           }
           if (node.nodeName === "#text") {
@@ -788,6 +823,20 @@
             return Promise.reject(new Error("Notifications not permitted by user"));
           }
         }
+        /** Remove All, 1 or more class names from an element
+         * @param {undefined|null|""|string|string[]} classNames Single or array of classnames. If undefined, "" or null, remove all classes
+         * @param {HTMLElement} el HTML Element to add class(es) to
+         */
+        removeClass(classNames, el) {
+          if (!classNames) {
+            el.removeAttribute("class");
+            return;
+          }
+          if (!Array.isArray(classNames))
+            classNames = [classNames];
+          if (el)
+            el.classList.remove(...classNames);
+        }
         // TODO Add multi-slot
         /** Replace or add an HTML element's slot from text or an HTML string
          * Will use DOMPurify if that library has been loaded to window.
@@ -841,9 +890,9 @@
         showDialog(type, ui, msg) {
           let content = "";
           if (msg.payload && typeof msg.payload === "string")
-            content += msg.payload;
+            content += `<div>${msg.payload}</div>`;
           if (ui.content)
-            content += ui.content;
+            content += `<div>${ui.content}</div>`;
           if (content === "") {
             _a.log(1, "Ui:showDialog", "Toast content is blank. Not shown.")();
             return;
@@ -916,6 +965,7 @@
             msg = json;
           else
             msg._ui = json;
+          console.log(this);
           this._uiManager(msg);
         }
         /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.
@@ -930,7 +980,9 @@
           );
           const out = [];
           selection.forEach((node) => {
-            if (propName !== null && propName !== "") {
+            if (propName) {
+              if (propName === "classes")
+                propName = "class";
               let prop = node.getAttribute(propName);
               if (prop === void 0 || prop === null) {
                 try {
@@ -944,23 +996,23 @@
                 else
                   out.push(`Property '${propName}' not found`);
               } else {
-                if (prop.constructor.name === "NamedNodeMap") {
-                  const p = {};
+                const p = {};
+                const cType = prop.constructor.name.toLowerCase();
+                if (cType === "namednodemap") {
                   for (const key of prop) {
                     p[key.name] = prop[key.name].value;
                   }
-                  out.push(p);
-                } else if (!prop.constructor.name.toLowerCase().includes("map")) {
-                  out.push({
-                    [propName]: prop
-                  });
+                } else if (!cType.includes("map")) {
+                  p[propName] = prop;
                 } else {
-                  const p = {};
+                  const p2 = {};
                   for (const key in prop) {
-                    p[key] = prop[key];
+                    p2[key] = prop[key];
                   }
-                  out.push(p);
                 }
+                if (p.class)
+                  p.classes = Array.from(node.classList);
+                out.push(p);
               }
             } else {
               out.push(this.nodeGet(node, cssSelector));
@@ -969,6 +1021,13 @@
           return out;
         }
         // --- end of uiGet --- //
+        /** External alias for _uiComposeComponent
+         * @param {*} el HTML Element to enhance
+         * @param {*} comp Individual uibuilder ui component spec
+         */
+        uiEnhanceElement(el, comp) {
+          this._uiComposeComponent(el, comp);
+        }
         //#endregion ---- -------- ----
       }, /** Log function - passed in constructor or will be a dummy function
        * @type {function}
diff --git a/front-end/ui.iife.min.js b/front-end/ui.iife.min.js
index eed87786..1a4116a7 100644
--- a/front-end/ui.iife.min.js
+++ b/front-end/ui.iife.min.js
@@ -1,2 +1,2 @@
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diff --git a/front-end/ui.iife.min.js.map b/front-end/ui.iife.min.js.map
index f37bbeed..05f11a22 100644
--- a/front-end/ui.iife.min.js.map
+++ b/front-end/ui.iife.min.js.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
   "sources": ["src/front-end-module/ui.js"],
-  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\n// Namespaces - See https://stackoverflow.com/a/52572048/1309986\n// const NAMESPACES = {\n//     svg: 'http://www.w3.org/2000/svg',\n//     html: 'http://www.w3.org/1999/xhtml',\n//     xml: 'http://www.w3.org/XML/1998/namespace',\n//     xlink: 'http://www.w3.org/1999/xlink',\n//     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n// }\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    //#region ---- Internal Methods ----\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                if (attrib === 'class' && Array.isArray(comp.attributes[attrib])) comp.attributes[attrib].join(' ')\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    /** External alias for _uiComposeComponent\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n    } // --- end of _uiManager ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    //#endregion ---- -------- ----\n    //#region ---- External Methods ----\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += msg.payload\n        if (ui.content) content += ui.content\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        this._uiManager(msg)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName !== null && propName !== '') {\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    // Nightmare of different object types in a DOM Element!\n                    if (prop.constructor.name === 'NamedNodeMap') { // Attributes\n                        const p = {}\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                        out.push(p)\n                    } else if (!prop.constructor.name.toLowerCase().includes('map')) { // Ordinary properties\n                        out.push({\n                            [propName]: prop\n                        })\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                        out.push(p)\n                    }\n                }\n\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    //#endregion ---- -------- ----\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n"],
-  "mappings": 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+  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\n// Namespaces - See https://stackoverflow.com/a/52572048/1309986\n// const NAMESPACES = {\n//     svg: 'http://www.w3.org/2000/svg',\n//     html: 'http://www.w3.org/1999/xhtml',\n//     xml: 'http://www.w3.org/XML/1998/namespace',\n//     xlink: 'http://www.w3.org/1999/xlink',\n//     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n// }\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    //#region ---- Internal Methods ----\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                if (attrib === 'class' && Array.isArray(comp.attributes[attrib])) comp.attributes[attrib].join(' ')\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n    } // --- end of _uiManager ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    //#endregion ---- -------- ----\n    //#region ---- External Methods ----\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {HTMLElement|null} Selected HTML element or null\n     */\n    $(cssSelector) {\n        /** @type {*} Some kind of HTML element */\n        let el = document.querySelector(cssSelector)\n\n        if (!el) {\n            Ui.log(1, 'Uib:$', `No element found for CSS selector ${cssSelector}`)()\n            return null\n        }\n\n        if ( el.nodeName === 'TEMPLATE' ) {\n            el = el.content.firstElementChild\n            if (!el) {\n                Ui.log(0, 'Uib:$', `Template selected for CSS selector ${cssSelector} but it is empty`)()\n                return null\n            }\n        }\n\n        return el\n    }\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {string} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {HTMLElement[]} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$(cssSelector) {\n        return Array.from(document.querySelectorAll(cssSelector))\n    }\n\n    /** Add 1 or several class names to an element\n     * @param {string|string[]} classNames Single or array of classnames\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    addClass(classNames, el) {\n        if (!Array.isArray(classNames)) classNames = [classNames]\n        if (el) el.classList.add(...classNames)\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n                if (attrib.name === 'class') thisOut.classes = Array.from(node.classList)\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    /** Remove All, 1 or more class names from an element\n     * @param {undefined|null|\"\"|string|string[]} classNames Single or array of classnames. If undefined, \"\" or null, remove all classes\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    removeClass(classNames, el) {\n        if (!classNames) {\n            el.removeAttribute('class')\n            return\n        }\n        if (!Array.isArray(classNames)) classNames = [classNames]\n        if (el) el.classList.remove(...classNames)\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += `<div>${msg.payload}</div>`\n        if (ui.content) content += `<div>${ui.content}</div>`\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        console.log(this)\n        this._uiManager(msg)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName) {\n                if (propName === 'classes') propName = 'class'\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    const p = {}\n                    // Nightmare of different object types in a DOM Element!\n                    const cType = prop.constructor.name.toLowerCase()\n                    if (cType === 'namednodemap') {\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                    } else if (!cType.includes('map')) { // Ordinary properties (not a mapped type)\n                        p[propName] = prop\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                    }\n                    if (p.class) p.classes = Array.from(node.classList)\n                    out.push(p)\n                }\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    /** External alias for _uiComposeComponent\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    //#endregion ---- -------- ----\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n"],
+  "mappings": 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+  "names": ["require_ui", "__commonJSMin", "exports", "module", "_a", "Ui", "win", "extLog", "jsonHighlight", "__publicField", "config", "notify", "resolve", "reject", "ev", "ui", "isRecurse", "compToAdd", "i", "newEl", "elParent", "el", "comp", "attrib", "type", "evt", "err", "prop", "parentEl", "components", "ns", "component", "__toESM", "__require", "script", "sheet", "msg", "all", "compToRemove", "els", "compToReplace", "elToReplace", "compToUpd", "elToUpd", "cssSelector", "classNames", "mdText", "opts", "str", "lang", "md", "url", "uiOptions", "response", "error", "contentType", "slot", "txtReturn", "data", "newScript", "textFn", "newStyle", "node", "thisOut", "listEntries", "bodyEntries", "headEntries", "cols", "v", "permit", "html", "content", "toaster", "toast", "json", "propName", "selection", "out", "p", "cType", "key"]
 }
diff --git a/nodes/libs/ui.js b/nodes/libs/ui.js
index ed78b9cb..b8677a4f 100644
--- a/nodes/libs/ui.js
+++ b/nodes/libs/ui.js
@@ -193,13 +193,6 @@ const Ui = class Ui2 {
       this.replaceSlotMarkdown(el, comp);
     }
   }
-  /** External alias for _uiComposeComponent
-   * @param {*} el HTML Element to enhance
-   * @param {*} comp Individual uibuilder ui component spec
-   */
-  uiEnhanceElement(el, comp) {
-    this._uiComposeComponent(el, comp);
-  }
   /** Extend an HTML Element with appended elements using ui components
    * NOTE: This fn follows a strict hierarchy of added components.
    * @param {HTMLElement} parentEl The parent HTML Element we want to append to
@@ -451,6 +444,46 @@ const Ui = class Ui2 {
   // --- end of _uiUpdate ---
   //#endregion ---- -------- ----
   //#region ---- External Methods ----
+  /** Simplistic jQuery-like document CSS query selector, returns an HTML Element
+   * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.
+   * If the selected element is a <template>, returns the first child element.
+   * type {HTMLElement}
+   * @param {string} cssSelector A CSS Selector that identifies the element to return
+   * @returns {HTMLElement|null} Selected HTML element or null
+   */
+  $(cssSelector) {
+    let el = document.querySelector(cssSelector);
+    if (!el) {
+      Ui2.log(1, "Uib:$", `No element found for CSS selector ${cssSelector}`)();
+      return null;
+    }
+    if (el.nodeName === "TEMPLATE") {
+      el = el.content.firstElementChild;
+      if (!el) {
+        Ui2.log(0, "Uib:$", `Template selected for CSS selector ${cssSelector} but it is empty`)();
+        return null;
+      }
+    }
+    return el;
+  }
+  /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.
+   * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself
+   * @param {string} cssSelector A CSS Selector that identifies the elements to return
+   * @returns {HTMLElement[]} Array of DOM elements/nodes. Array is empty if selector is not found.
+   */
+  $$(cssSelector) {
+    return Array.from(document.querySelectorAll(cssSelector));
+  }
+  /** Add 1 or several class names to an element
+   * @param {string|string[]} classNames Single or array of classnames
+   * @param {HTMLElement} el HTML Element to add class(es) to
+   */
+  addClass(classNames, el) {
+    if (!Array.isArray(classNames))
+      classNames = [classNames];
+    if (el)
+      el.classList.add(...classNames);
+  }
   /** Converts markdown text input to HTML if the Markdown-IT library is loaded
    * Otherwise simply returns the text
    * @param {string} mdText The input markdown string
@@ -737,6 +770,8 @@ const Ui = class Ui2 {
         if (attrib.name !== "id") {
           thisOut.attributes[attrib.name] = node.attributes[attrib.name].value;
         }
+        if (attrib.name === "class")
+          thisOut.classes = Array.from(node.classList);
       }
     }
     if (node.nodeName === "#text") {
@@ -776,6 +811,20 @@ const Ui = class Ui2 {
       return Promise.reject(new Error("Notifications not permitted by user"));
     }
   }
+  /** Remove All, 1 or more class names from an element
+   * @param {undefined|null|""|string|string[]} classNames Single or array of classnames. If undefined, "" or null, remove all classes
+   * @param {HTMLElement} el HTML Element to add class(es) to
+   */
+  removeClass(classNames, el) {
+    if (!classNames) {
+      el.removeAttribute("class");
+      return;
+    }
+    if (!Array.isArray(classNames))
+      classNames = [classNames];
+    if (el)
+      el.classList.remove(...classNames);
+  }
   // TODO Add multi-slot
   /** Replace or add an HTML element's slot from text or an HTML string
    * Will use DOMPurify if that library has been loaded to window.
@@ -829,9 +878,9 @@ const Ui = class Ui2 {
   showDialog(type, ui, msg) {
     let content = "";
     if (msg.payload && typeof msg.payload === "string")
-      content += msg.payload;
+      content += `<div>${msg.payload}</div>`;
     if (ui.content)
-      content += ui.content;
+      content += `<div>${ui.content}</div>`;
     if (content === "") {
       Ui2.log(1, "Ui:showDialog", "Toast content is blank. Not shown.")();
       return;
@@ -904,6 +953,7 @@ const Ui = class Ui2 {
       msg = json;
     else
       msg._ui = json;
+    console.log(this);
     this._uiManager(msg);
   }
   /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.
@@ -918,7 +968,9 @@ const Ui = class Ui2 {
     );
     const out = [];
     selection.forEach((node) => {
-      if (propName !== null && propName !== "") {
+      if (propName) {
+        if (propName === "classes")
+          propName = "class";
         let prop = node.getAttribute(propName);
         if (prop === void 0 || prop === null) {
           try {
@@ -932,23 +984,23 @@ const Ui = class Ui2 {
           else
             out.push(`Property '${propName}' not found`);
         } else {
-          if (prop.constructor.name === "NamedNodeMap") {
-            const p = {};
+          const p = {};
+          const cType = prop.constructor.name.toLowerCase();
+          if (cType === "namednodemap") {
             for (const key of prop) {
               p[key.name] = prop[key.name].value;
             }
-            out.push(p);
-          } else if (!prop.constructor.name.toLowerCase().includes("map")) {
-            out.push({
-              [propName]: prop
-            });
+          } else if (!cType.includes("map")) {
+            p[propName] = prop;
           } else {
-            const p = {};
+            const p2 = {};
             for (const key in prop) {
-              p[key] = prop[key];
+              p2[key] = prop[key];
             }
-            out.push(p);
           }
+          if (p.class)
+            p.classes = Array.from(node.classList);
+          out.push(p);
         }
       } else {
         out.push(this.nodeGet(node, cssSelector));
@@ -957,6 +1009,13 @@ const Ui = class Ui2 {
     return out;
   }
   // --- end of uiGet --- //
+  /** External alias for _uiComposeComponent
+   * @param {*} el HTML Element to enhance
+   * @param {*} comp Individual uibuilder ui component spec
+   */
+  uiEnhanceElement(el, comp) {
+    this._uiComposeComponent(el, comp);
+  }
   //#endregion ---- -------- ----
 };
 module.exports = Ui;
diff --git a/src/front-end-module/ui.js b/src/front-end-module/ui.js
index 15b9b70d..47a2ed60 100644
--- a/src/front-end-module/ui.js
+++ b/src/front-end-module/ui.js
@@ -286,14 +286,6 @@ const Ui = class Ui {
         //#endregion
     }
 
-    /** External alias for _uiComposeComponent
-     * @param {*} el HTML Element to enhance
-     * @param {*} comp Individual uibuilder ui component spec
-     */
-    uiEnhanceElement(el, comp) {
-        this._uiComposeComponent(el, comp)
-    }
-
     /** Extend an HTML Element with appended elements using ui components
      * NOTE: This fn follows a strict hierarchy of added components.
      * @param {HTMLElement} parentEl The parent HTML Element we want to append to
@@ -612,6 +604,51 @@ const Ui = class Ui {
     //#endregion ---- -------- ----
     //#region ---- External Methods ----
 
+    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element
+     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.
+     * If the selected element is a <template>, returns the first child element.
+     * type {HTMLElement}
+     * @param {string} cssSelector A CSS Selector that identifies the element to return
+     * @returns {HTMLElement|null} Selected HTML element or null
+     */
+    $(cssSelector) {
+        /** @type {*} Some kind of HTML element */
+        let el = document.querySelector(cssSelector)
+
+        if (!el) {
+            Ui.log(1, 'Uib:$', `No element found for CSS selector ${cssSelector}`)()
+            return null
+        }
+
+        if ( el.nodeName === 'TEMPLATE' ) {
+            el = el.content.firstElementChild
+            if (!el) {
+                Ui.log(0, 'Uib:$', `Template selected for CSS selector ${cssSelector} but it is empty`)()
+                return null
+            }
+        }
+
+        return el
+    }
+
+    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.
+     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself
+     * @param {string} cssSelector A CSS Selector that identifies the elements to return
+     * @returns {HTMLElement[]} Array of DOM elements/nodes. Array is empty if selector is not found.
+     */
+    $$(cssSelector) {
+        return Array.from(document.querySelectorAll(cssSelector))
+    }
+
+    /** Add 1 or several class names to an element
+     * @param {string|string[]} classNames Single or array of classnames
+     * @param {HTMLElement} el HTML Element to add class(es) to
+     */
+    addClass(classNames, el) {
+        if (!Array.isArray(classNames)) classNames = [classNames]
+        if (el) el.classList.add(...classNames)
+    }
+
     /** Converts markdown text input to HTML if the Markdown-IT library is loaded
      * Otherwise simply returns the text
      * @param {string} mdText The input markdown string
@@ -927,6 +964,7 @@ const Ui = class Ui {
                 if (attrib.name !== 'id') {
                     thisOut.attributes[attrib.name] = node.attributes[attrib.name].value
                 }
+                if (attrib.name === 'class') thisOut.classes = Array.from(node.classList)
             }
         }
         if (node.nodeName === '#text') {
@@ -968,6 +1006,19 @@ const Ui = class Ui {
         }
     }
 
+    /** Remove All, 1 or more class names from an element
+     * @param {undefined|null|""|string|string[]} classNames Single or array of classnames. If undefined, "" or null, remove all classes
+     * @param {HTMLElement} el HTML Element to add class(es) to
+     */
+    removeClass(classNames, el) {
+        if (!classNames) {
+            el.removeAttribute('class')
+            return
+        }
+        if (!Array.isArray(classNames)) classNames = [classNames]
+        if (el) el.classList.remove(...classNames)
+    }
+
     // TODO Add multi-slot
     /** Replace or add an HTML element's slot from text or an HTML string
      * Will use DOMPurify if that library has been loaded to window.
@@ -1028,8 +1079,8 @@ const Ui = class Ui {
 
         let content = ''
         // Main body content
-        if (msg.payload && typeof msg.payload === 'string') content += msg.payload
-        if (ui.content) content += ui.content
+        if (msg.payload && typeof msg.payload === 'string') content += `<div>${msg.payload}</div>`
+        if (ui.content) content += `<div>${ui.content}</div>`
         // Toast wont show anyway if content is empty, may as well warn user
         if (content === '') {
             Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()
@@ -1118,6 +1169,7 @@ const Ui = class Ui {
         if (json._ui) msg = json
         else msg._ui = json
 
+        console.log(this)
         this._uiManager(msg)
     }
 
@@ -1134,7 +1186,8 @@ const Ui = class Ui {
 
         selection.forEach(node => {
             // Specific property asked for ...
-            if (propName !== null && propName !== '') {
+            if (propName) {
+                if (propName === 'classes') propName = 'class'
                 // Try assuming the prop is an attribute first (will return null or "" if not present)
                 let prop = node.getAttribute(propName)
                 // If not an attribute, try getting as a property of the element
@@ -1149,28 +1202,26 @@ const Ui = class Ui {
                     if (propName.toLowerCase() === 'value') out.push(node.innerText)
                     else out.push(`Property '${propName}' not found`)
                 } else {
+                    const p = {}
                     // Nightmare of different object types in a DOM Element!
-                    if (prop.constructor.name === 'NamedNodeMap') { // Attributes
-                        const p = {}
+                    const cType = prop.constructor.name.toLowerCase()
+                    if (cType === 'namednodemap') {
                         for (const key of prop) {
                             // @ts-ignore
                             p[key.name] = prop[key.name].value
                         }
-                        out.push(p)
-                    } else if (!prop.constructor.name.toLowerCase().includes('map')) { // Ordinary properties
-                        out.push({
-                            [propName]: prop
-                        })
+                    } else if (!cType.includes('map')) { // Ordinary properties (not a mapped type)
+                        p[propName] = prop
                     } else { // Other MAP types
                         const p = {}
                         // @ts-ignore
                         for (const key in prop) {
                             p[key] = prop[key]
                         }
-                        out.push(p)
                     }
+                    if (p.class) p.classes = Array.from(node.classList)
+                    out.push(p)
                 }
-
             } else { // Otherwise, grab everything useful
                 out.push(this.nodeGet(node, cssSelector))
             }
@@ -1179,6 +1230,14 @@ const Ui = class Ui {
         return out
     } // --- end of uiGet --- //
 
+    /** External alias for _uiComposeComponent
+     * @param {*} el HTML Element to enhance
+     * @param {*} comp Individual uibuilder ui component spec
+     */
+    uiEnhanceElement(el, comp) {
+        this._uiComposeComponent(el, comp)
+    }
+
     //#endregion ---- -------- ----
 }
 

From 3ac2db4f0da2e206aa6b541bc26880af4876f1ff Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Fri, 1 Dec 2023 14:09:52 +0000
Subject: [PATCH 17/78] Reorg fns alphabetically. Add window.$ui

---
 front-end/uibuilder.esm.js               | 866 +++++++++++----------
 front-end/uibuilder.esm.min.js           |   2 +-
 front-end/uibuilder.esm.min.js.map       |   6 +-
 front-end/uibuilder.iife.js              | 866 +++++++++++----------
 front-end/uibuilder.iife.min.js          |   2 +-
 front-end/uibuilder.iife.min.js.map      |   6 +-
 src/front-end-module/uibuilder.module.js | 929 ++++++++++++-----------
 7 files changed, 1402 insertions(+), 1275 deletions(-)

diff --git a/front-end/uibuilder.esm.js b/front-end/uibuilder.esm.js
index 9e2a381a..8719e7d7 100644
--- a/front-end/uibuilder.esm.js
+++ b/front-end/uibuilder.esm.js
@@ -246,13 +246,6 @@ var require_ui = __commonJS({
           this.replaceSlotMarkdown(el, comp);
         }
       }
-      /** External alias for _uiComposeComponent
-       * @param {*} el HTML Element to enhance
-       * @param {*} comp Individual uibuilder ui component spec
-       */
-      uiEnhanceElement(el, comp) {
-        this._uiComposeComponent(el, comp);
-      }
       /** Extend an HTML Element with appended elements using ui components
        * NOTE: This fn follows a strict hierarchy of added components.
        * @param {HTMLElement} parentEl The parent HTML Element we want to append to
@@ -504,6 +497,46 @@ var require_ui = __commonJS({
       // --- end of _uiUpdate ---
       //#endregion ---- -------- ----
       //#region ---- External Methods ----
+      /** Simplistic jQuery-like document CSS query selector, returns an HTML Element
+       * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.
+       * If the selected element is a <template>, returns the first child element.
+       * type {HTMLElement}
+       * @param {string} cssSelector A CSS Selector that identifies the element to return
+       * @returns {HTMLElement|null} Selected HTML element or null
+       */
+      $(cssSelector) {
+        let el = document.querySelector(cssSelector);
+        if (!el) {
+          _a2.log(1, "Uib:$", `No element found for CSS selector ${cssSelector}`)();
+          return null;
+        }
+        if (el.nodeName === "TEMPLATE") {
+          el = el.content.firstElementChild;
+          if (!el) {
+            _a2.log(0, "Uib:$", `Template selected for CSS selector ${cssSelector} but it is empty`)();
+            return null;
+          }
+        }
+        return el;
+      }
+      /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.
+       * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself
+       * @param {string} cssSelector A CSS Selector that identifies the elements to return
+       * @returns {HTMLElement[]} Array of DOM elements/nodes. Array is empty if selector is not found.
+       */
+      $$(cssSelector) {
+        return Array.from(document.querySelectorAll(cssSelector));
+      }
+      /** Add 1 or several class names to an element
+       * @param {string|string[]} classNames Single or array of classnames
+       * @param {HTMLElement} el HTML Element to add class(es) to
+       */
+      addClass(classNames, el) {
+        if (!Array.isArray(classNames))
+          classNames = [classNames];
+        if (el)
+          el.classList.add(...classNames);
+      }
       /** Converts markdown text input to HTML if the Markdown-IT library is loaded
        * Otherwise simply returns the text
        * @param {string} mdText The input markdown string
@@ -790,6 +823,8 @@ var require_ui = __commonJS({
             if (attrib.name !== "id") {
               thisOut.attributes[attrib.name] = node.attributes[attrib.name].value;
             }
+            if (attrib.name === "class")
+              thisOut.classes = Array.from(node.classList);
           }
         }
         if (node.nodeName === "#text") {
@@ -829,6 +864,20 @@ var require_ui = __commonJS({
           return Promise.reject(new Error("Notifications not permitted by user"));
         }
       }
+      /** Remove All, 1 or more class names from an element
+       * @param {undefined|null|""|string|string[]} classNames Single or array of classnames. If undefined, "" or null, remove all classes
+       * @param {HTMLElement} el HTML Element to add class(es) to
+       */
+      removeClass(classNames, el) {
+        if (!classNames) {
+          el.removeAttribute("class");
+          return;
+        }
+        if (!Array.isArray(classNames))
+          classNames = [classNames];
+        if (el)
+          el.classList.remove(...classNames);
+      }
       // TODO Add multi-slot
       /** Replace or add an HTML element's slot from text or an HTML string
        * Will use DOMPurify if that library has been loaded to window.
@@ -882,9 +931,9 @@ var require_ui = __commonJS({
       showDialog(type, ui, msg) {
         let content = "";
         if (msg.payload && typeof msg.payload === "string")
-          content += msg.payload;
+          content += `<div>${msg.payload}</div>`;
         if (ui.content)
-          content += ui.content;
+          content += `<div>${ui.content}</div>`;
         if (content === "") {
           _a2.log(1, "Ui:showDialog", "Toast content is blank. Not shown.")();
           return;
@@ -957,6 +1006,7 @@ var require_ui = __commonJS({
           msg = json;
         else
           msg._ui = json;
+        console.log(this);
         this._uiManager(msg);
       }
       /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.
@@ -971,7 +1021,9 @@ var require_ui = __commonJS({
         );
         const out = [];
         selection.forEach((node) => {
-          if (propName !== null && propName !== "") {
+          if (propName) {
+            if (propName === "classes")
+              propName = "class";
             let prop = node.getAttribute(propName);
             if (prop === void 0 || prop === null) {
               try {
@@ -985,23 +1037,23 @@ var require_ui = __commonJS({
               else
                 out.push(`Property '${propName}' not found`);
             } else {
-              if (prop.constructor.name === "NamedNodeMap") {
-                const p = {};
+              const p = {};
+              const cType = prop.constructor.name.toLowerCase();
+              if (cType === "namednodemap") {
                 for (const key of prop) {
                   p[key.name] = prop[key.name].value;
                 }
-                out.push(p);
-              } else if (!prop.constructor.name.toLowerCase().includes("map")) {
-                out.push({
-                  [propName]: prop
-                });
+              } else if (!cType.includes("map")) {
+                p[propName] = prop;
               } else {
-                const p = {};
+                const p2 = {};
                 for (const key in prop) {
-                  p[key] = prop[key];
+                  p2[key] = prop[key];
                 }
-                out.push(p);
               }
+              if (p.class)
+                p.classes = Array.from(node.classList);
+              out.push(p);
             }
           } else {
             out.push(this.nodeGet(node, cssSelector));
@@ -1010,6 +1062,13 @@ var require_ui = __commonJS({
         return out;
       }
       // --- end of uiGet --- //
+      /** External alias for _uiComposeComponent
+       * @param {*} el HTML Element to enhance
+       * @param {*} comp Individual uibuilder ui component spec
+       */
+      uiEnhanceElement(el, comp) {
+        this._uiComposeComponent(el, comp);
+      }
       //#endregion ---- -------- ----
     }, /** Log function - passed in constructor or will be a dummy function
      * @type {function}
@@ -4841,6 +4900,36 @@ var Uib = (_a = class {
         }
       }
     });
+    //#endregion -------- -------- -------- //
+    //#region ------- UI handlers --------- //
+    //#region -- Direct to _ui --
+    // ! NOTE: Direct assignments change the target `this` to here. Use with caution
+    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element
+     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.
+     * If the selected element is a <template>, returns the first child element.
+     * type {HTMLElement}
+     * @param {string} cssSelector A CSS Selector that identifies the element to return
+     * @returns {HTMLElement|null} Selected HTML element or null
+     */
+    __publicField(this, "$", _ui.$);
+    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.
+     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself
+     * @param {string} cssSelector A CSS Selector that identifies the elements to return
+     * @returns {HTMLElement[]} Array of DOM elements/nodes. Array is empty if selector is not found.
+     */
+    __publicField(this, "$$", _ui.$$);
+    /** Reference to the full ui library */
+    __publicField(this, "$ui", _ui);
+    /** Add 1 or several class names to an element
+     * @param {string|string[]} classNames Single or array of classnames
+     * @param {HTMLElement} el HTML Element to add class(es) to
+     */
+    __publicField(this, "addClass", _ui.addClass);
+    /** Remove All, 1 or more class names from an element
+     * @param {undefined|null|""|string|string[]} classNames Single or array of classnames. If undefined, "" or null, remove all classes
+     * @param {HTMLElement} el HTML Element to add class(es) to
+     */
+    __publicField(this, "removeClass", _ui.removeClass);
     log("trace", "Uib:constructor", "Starting")();
     window.addEventListener("offline", (e) => {
       this.set("online", false);
@@ -5159,36 +5248,6 @@ var Uib = (_a = class {
       }
     }
   }
-  /** Simplistic jQuery-like document CSS query selector, returns an HTML Element
-   * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.
-   * If the selected element is a <template>, returns the first child element.
-   * type {HTMLElement}
-   * @param {string} cssSelector A CSS Selector that identifies the element to return
-   * @returns {*} Selected HTML element or null
-   */
-  $(cssSelector) {
-    let el = document.querySelector(cssSelector);
-    if (!el) {
-      log(1, "Uib:$", `No element found for CSS selector ${cssSelector}`)();
-      return null;
-    }
-    if (el.nodeName === "TEMPLATE") {
-      el = el.content.firstElementChild;
-      if (!el) {
-        log(0, "Uib:$", `Template selected for CSS selector ${cssSelector} but it is empty`)();
-        return null;
-      }
-    }
-    return el;
-  }
-  /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.
-   * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself
-   * @param {*} cssSelector A CSS Selector that identifies the elements to return
-   * @returns {Array} Array of DOM elements/nodes. Array is empty if selector is not found.
-   */
-  $$(cssSelector) {
-    return Array.from(document.querySelectorAll(cssSelector));
-  }
   /** Set the default originator. Set to '' to ignore. Used with uib-sender.
    * @param {string} [originator] A Node-RED node ID to return the message to
    */
@@ -5263,6 +5322,7 @@ var Uib = (_a = class {
    * Requires IntersectionObserver (available to all mainstream browsers from early 2019)
    * Automatically sends a msg back to Node-RED.
    * Requires the element to already exist.
+   * @returns {false}
    */
   elementIsVisible() {
     const info = "elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex";
@@ -5344,48 +5404,24 @@ var Uib = (_a = class {
       window.location.href = url2;
     return window.location;
   }
-  //#endregion -------- -------- -------- //
-  //#region ------- UI handlers --------- //
-  //#region -- Direct to _ui --
-  /** Directly manage UI via JSON
-   * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions
-   */
-  ui(json) {
-    _ui.ui(json);
-  }
-  /** Replace or add an HTML element's slot from text or an HTML string
-   * Will use DOMPurify if that library has been loaded to window.
-   * param {*} ui Single entry from the msg._ui property
-   * @param {Element} el Reference to the element that we want to update
-   * @param {*} component The component we are trying to add/replace
-   */
-  replaceSlot(el, component) {
-    _ui.replaceSlot(el, component);
-  }
-  /** Replace or add an HTML element's slot from a Markdown string
-   * Only does something if the markdownit library has been loaded to window.
-   * Will use DOMPurify if that library has been loaded to window.
-   * @param {Element} el Reference to the element that we want to update
-   * @param {*} component The component we are trying to add/replace
-   */
-  replaceSlotMarkdown(el, component) {
-    _ui.replaceSlotMarkdown(el, component);
-  }
   /** Converts markdown text input to HTML if the Markdown-IT library is loaded
    * Otherwise simply returns the text
    * @param {string} mdText The input markdown string
    * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text
    */
   convertMarkdown(mdText) {
-    return _ui.convertMarkdown(mdText);
+    return _ui.convertMarkdown;
   }
-  /** Sanitise HTML to make it safe - if the DOMPurify library is loaded
-   * Otherwise just returns that HTML as-is.
-   * @param {string} html The input HTML string
-   * @returns {string} The sanitised HTML or the original if DOMPurify not loaded
+  /** ASYNC: Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API
+   * Wraps the included object in a div tag.
+   * PDF's, text or unknown MIME types are also wrapped in an iFrame.
+   * @param {string} url The URL of the source file to include
+   * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id
+   * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag
+   * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')
    */
-  sanitiseHTML(html) {
-    return _ui.sanitiseHTML(html);
+  async include(url2, uiOptions) {
+    await _ui.include(url2, uiOptions);
   }
   /** Attach a new remote script to the end of HEAD synchronously
    * NOTE: It takes too long for most scripts to finish loading
@@ -5419,6 +5455,38 @@ var Uib = (_a = class {
   loadStyleTxt(textFn) {
     _ui.loadStyleTxt(textFn);
   }
+  /** Load a dynamic UI from a JSON web reponse
+   * @param {string} url URL that will return the ui JSON
+   */
+  loadui(url2) {
+    _ui.loadui(url2);
+  }
+  /** Replace or add an HTML element's slot from text or an HTML string
+   * Will use DOMPurify if that library has been loaded to window.
+   * param {*} ui Single entry from the msg._ui property
+   * @param {Element} el Reference to the element that we want to update
+   * @param {*} component The component we are trying to add/replace
+   */
+  replaceSlot(el, component) {
+    _ui.replaceSlot(el, component);
+  }
+  /** Replace or add an HTML element's slot from a Markdown string
+   * Only does something if the markdownit library has been loaded to window.
+   * Will use DOMPurify if that library has been loaded to window.
+   * @param {Element} el Reference to the element that we want to update
+   * @param {*} component The component we are trying to add/replace
+   */
+  replaceSlotMarkdown(el, component) {
+    _ui.replaceSlotMarkdown(el, component);
+  }
+  /** Sanitise HTML to make it safe - if the DOMPurify library is loaded
+   * Otherwise just returns that HTML as-is.
+   * @param {string} html The input HTML string
+   * @returns {string} The sanitised HTML or the original if DOMPurify not loaded
+   */
+  sanitiseHTML(html) {
+    return _ui.sanitiseHTML(html);
+  }
   /** Show a pop-over "toast" dialog or a modal alert
    * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,
    *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,
@@ -5431,11 +5499,11 @@ var Uib = (_a = class {
   showDialog(type, ui, msg) {
     _ui.showDialog(type, ui, msg);
   }
-  /** Load a dynamic UI from a JSON web reponse
-   * @param {string} url URL that will return the ui JSON
+  /** Directly manage UI via JSON
+   * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions
    */
-  loadui(url2) {
-    _ui.loadui(url2);
+  ui(json) {
+    _ui.ui(json);
   }
   /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.
    * @param {string} cssSelector Identify the DOM element to get data from
@@ -5445,17 +5513,6 @@ var Uib = (_a = class {
   uiGet(cssSelector, propName = null) {
     return _ui.uiGet(cssSelector, propName);
   }
-  /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API
-   * Wraps the included object in a div tag.
-   * PDF's, text or unknown MIME types are also wrapped in an iFrame.
-   * @param {string} url The URL of the source file to include
-   * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id
-   * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag
-   * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')
-   */
-  async include(url2, uiOptions) {
-    _ui.include(url2, uiOptions);
-  }
   /** Enhance an HTML element that is being composed with ui data
    *  such as ID, attribs, event handlers, custom props, etc.
    * @param {*} el HTML Element to enhance
@@ -5768,6 +5825,98 @@ var Uib = (_a = class {
   // ---- End of watchDom ---- //
   //#endregion -------- -------- -------- //
   //#region ------- Message Handling (To/From Node-RED) -------- //
+  /** Handles original control msgs (not to be confused with "new" msg._uib controls)
+   * @param {*} receivedCtrlMsg The msg received on the socket.io control channel
+   */
+  _ctrlMsgFromServer(receivedCtrlMsg) {
+    if (receivedCtrlMsg === null) {
+      receivedCtrlMsg = {};
+    } else if (typeof receivedCtrlMsg !== "object") {
+      const msg = {};
+      msg["uibuilderCtrl:" + this._ioChannels.control] = receivedCtrlMsg;
+      receivedCtrlMsg = msg;
+    }
+    this._checkTimestamp(receivedCtrlMsg);
+    this.set("ctrlMsg", receivedCtrlMsg);
+    this.set("msgsCtrlReceived", ++this.msgsCtrlReceived);
+    log("trace", "Uib:ioSetup:_ctrlMsgFromServer", `Channel '${this._ioChannels.control}'. Received control msg #${this.msgsCtrlReceived}`, receivedCtrlMsg)();
+    switch (receivedCtrlMsg.uibuilderCtrl) {
+      case "shutdown": {
+        log("info", `Uib:ioSetup:${this._ioChannels.control}`, '\u274C Received "shutdown" from server')();
+        this.set("serverShutdown", void 0);
+        break;
+      }
+      case "client connect": {
+        log("trace", `Uib:ioSetup:${this._ioChannels.control}`, 'Received "client connect" from server')();
+        log("info", `Uib:ioSetup:${this._ioChannels.control}`, `\u2705 Server connected. Version: ${receivedCtrlMsg.version}
+Server time: ${receivedCtrlMsg.serverTimestamp}, Sever time offset: ${this.serverTimeOffset} hours`)();
+        if (!_a._meta.version.startsWith(receivedCtrlMsg.version.split("-")[0])) {
+          log("warn", `Uib:ioSetup:${this._ioChannels.control}`, `Server version (${receivedCtrlMsg.version}) not the same as the client version (${_a._meta.version})`)();
+        }
+        if (this.autoSendReady === true) {
+          log("trace", `Uib:ioSetup:${this._ioChannels.control}/client connect`, "Auto-sending ready-for-content/replay msg to server");
+        }
+        break;
+      }
+      default: {
+        log("trace", `uibuilderfe:ioSetup:${this._ioChannels.control}`, `Received ${receivedCtrlMsg.uibuilderCtrl} from server`);
+      }
+    }
+  }
+  // -- End of websocket receive CONTROL msg from Node-RED -- //
+  /** Do we want to process something? Check pageName, clientId, tabId. Defaults to yes.
+   * @param {*} obj Either a msg._ui or msg._uib object to check
+   * @returns {boolean} True if we should process the inbound _ui/_uib msg, false if not.
+   */
+  _forThis(obj) {
+    let r = true;
+    if (obj.pageName && obj.pageName !== this.pageName) {
+      log("trace", "Uib:_msgRcvdEvents:_uib", "Not for this page")();
+      r = false;
+    }
+    if (obj.clientId && obj.clientId !== this.clientId) {
+      log("trace", "Uib:_msgRcvdEvents:_uib", "Not for this clientId")();
+      r = false;
+    }
+    if (obj.tabId && obj.tabId !== this.tabId) {
+      log("trace", "Uib:_msgRcvdEvents:_uib", "Not for this tabId")();
+      r = false;
+    }
+    return r;
+  }
+  // Handle received messages - Process some msgs internally, emit specific events on document that make it easy for coders to use
+  _msgRcvdEvents(msg) {
+    this._dispatchCustomEvent("uibuilder:stdMsgReceived", msg);
+    if (msg.topic)
+      this._dispatchCustomEvent(`uibuilder:msg:topic:${msg.topic}`, msg);
+    if (msg._uib) {
+      if (!this._forThis(msg._uib))
+        return;
+      if (msg._uib.reload === true) {
+        log("trace", "Uib:_msgRcvdEvents:_uib:reload", "reloading")();
+        location.reload();
+        return;
+      }
+      if (msg._uib.command) {
+        this._uibCommand(msg);
+        return;
+      }
+      if (msg._uib.componentRef === "globalNotification") {
+        _ui.showDialog("notify", msg._uib.options, msg);
+      }
+      if (msg._uib.componentRef === "globalAlert") {
+        _ui.showDialog("alert", msg._uib.options, msg);
+      }
+    }
+    if (msg._ui) {
+      if (!this._forThis(msg._ui))
+        return;
+      log("trace", "Uib:_msgRcvdEvents:_ui", "Calling _uiManager")();
+      this._dispatchCustomEvent("uibuilder:msg:_ui", msg);
+      _ui._uiManager(msg);
+    }
+  }
+  // --- end of _msgRcvdEvents ---
   /** Internal send fn. Send a standard or control msg back to Node-RED via Socket.IO
    * NR will generally expect the msg to contain a payload topic
    * @param {object} msgToSend The msg object to send.
@@ -5814,26 +5963,209 @@ var Uib = (_a = class {
     this._socket.emit(channel, msgToSend);
   }
   // --- End of Send Msg Fn --- //
-  /** Send a standard message to NR
-   * @example uibuilder.send({payload:'Hello'})
-   * @param {object} msg Message to send
-   * @param {string} [originator] A Node-RED node ID to return the message to
+  /** Callback handler for messages from Node-RED
+   * NOTE: `this` is the class here rather the `socket` as would be normal since we bind the correct `this` in the call.
+   *       Use this._socket if needing reference to the socket.
+   * @callback ioSetupFromServer Called from ioSetup/this._socket.on(this.#ioChannels.server, this.stdMsgFromServer.bind(this))
+   * @param {object} receivedMsg The msg object from Node-RED
+   * @this Uib
    */
-  send(msg, originator = "") {
-    this._send(msg, this._ioChannels.client, originator);
+  _stdMsgFromServer(receivedMsg) {
+    receivedMsg = makeMeAnObject(receivedMsg, "payload");
+    if (receivedMsg._uib && !this._forThis(receivedMsg._uib))
+      return;
+    if (receivedMsg._ui && !this._forThis(receivedMsg._ui))
+      return;
+    this._checkTimestamp(receivedMsg);
+    this.set("msgsReceived", ++this.msgsReceived);
+    this._msgRcvdEvents(receivedMsg);
+    if (!("_ui" in receivedMsg && !("payload" in receivedMsg))) {
+      this.set("msg", receivedMsg);
+    }
+    log("info", "Uib:ioSetup:stdMsgFromServer", `Channel '${this._ioChannels.server}'. Received msg #${this.msgsReceived}.`, receivedMsg)();
   }
-  /** Send a control msg to NR
-   * @param {object} msg Message to send
+  // -- End of websocket receive DATA msg from Node-RED -- //
+  /** Process msg._uib.command - Remember to update #extCommands with new allowed commands
+   * @param {object} msg Msg from Node-RED containing a msg._uib object
    */
-  sendCtrl(msg) {
-    this._send(msg, this._ioChannels.control);
-  }
-  /** Easily send a msg back to Node-RED on a DOM event
-   * @example In plain HTML/JavaScript
-   *    `<button id="button1" name="button 1" data-fred="jim"></button>`
-   *    $('#button1').onclick = (evt) => {
-   *      uibuilder.eventSend(evt)
-   *    }
+  _uibCommand(msg) {
+    if (!msg._uib || !msg._uib.command) {
+      log("error", "uibuilder:_uibCommand", "Invalid command message received", { msg })();
+      msg.payload = msg.error = "Invalid command message received";
+      this.send(msg);
+      return;
+    }
+    const cmd = msg._uib.command;
+    if (!__privateGet(this, _extCommands).includes(cmd.trim())) {
+      log("error", "Uib:_uibCommand", `Command '${cmd} is not allowed to be called externally`)();
+      return;
+    }
+    const prop = msg._uib.prop;
+    const value2 = msg._uib.value;
+    const quiet = msg._uib.quiet ?? false;
+    let response, info;
+    switch (cmd) {
+      case "elementIsVisible": {
+        response = this.elementIsVisible(prop);
+        break;
+      }
+      case "elementExists": {
+        response = this.elementExists(prop, false);
+        info = `Element "${prop}" ${response ? "exists" : "does not exist"}`;
+        break;
+      }
+      case "get": {
+        response = this.get(prop);
+        break;
+      }
+      case "getManagedVarList": {
+        if (prop === "full")
+          response = this.getManagedVarList();
+        else
+          response = Object.values(this.getManagedVarList());
+        break;
+      }
+      case "getWatchedVars": {
+        if (prop === "full")
+          response = this.getWatchedVars();
+        else
+          response = Object.values(this.getWatchedVars());
+        break;
+      }
+      case "htmlSend": {
+        response = this.htmlSend("", false);
+        break;
+      }
+      case "include": {
+        response = _ui.include(prop, value2);
+        break;
+      }
+      case "navigate": {
+        let newUrl;
+        if (prop)
+          newUrl = prop;
+        else if (value2)
+          newUrl = value2;
+        response = this.navigate(newUrl);
+        break;
+      }
+      case "scrollTo": {
+        response = this.scrollTo(prop, value2);
+        break;
+      }
+      case "set": {
+        let store = false;
+        let autoload = false;
+        if (msg._uib.options && msg._uib.options.store) {
+          if (msg._uib.options.store === true)
+            store = true;
+          if (msg._uib.options.autoload === true)
+            autoload = true;
+        }
+        response = this.set(prop, value2, store, autoload);
+        break;
+      }
+      case "showMsg": {
+        response = this.showMsg(value2, prop);
+        break;
+      }
+      case "showStatus": {
+        response = this.showStatus(value2, prop);
+        break;
+      }
+      case "uiGet": {
+        response = _ui.uiGet(prop, value2);
+        break;
+      }
+      case "uiWatch": {
+        response = this.uiWatch(prop);
+        break;
+      }
+      case "watchUrlHash": {
+        response = this.watchUrlHash(prop);
+        break;
+      }
+      default: {
+        log("warning", "Uib:_uibCommand", `Command '${cmd}' not yet implemented`)();
+        break;
+      }
+    }
+    if (quiet !== true) {
+      if (response === void 0) {
+        response = `'${prop}' is undefined`;
+      }
+      if (Object(response).constructor === Promise) {
+        response.then((data) => {
+          msg.payload = msg._uib.response = data;
+          msg.info = msg._uib.info = info;
+          if (!msg.topic)
+            msg.topic = this.topic || `uib ${cmd} for '${prop}'`;
+          this.send(msg);
+          return true;
+        }).catch((err) => {
+          log(0, "Uib:_uibCommand", "Error: ", err)();
+        });
+      } else {
+        msg.payload = msg._uib.response = response;
+        msg.info = msg._uib.info = info;
+        if (!msg.topic)
+          msg.topic = this.topic || `uib ${cmd} for '${prop}'`;
+        this.send(msg);
+      }
+    }
+  }
+  // --- end of _uibCommand ---
+  /** Send log text to uibuilder's beacon endpoint (works even if socket.io not connected)
+   * @param {string} txtToSend Text string to send
+   * @param {string|undefined} logLevel Log level to use. If not supplied, will default to debug
+   */
+  beaconLog(txtToSend, logLevel2) {
+    if (!logLevel2)
+      logLevel2 = "debug";
+    navigator.sendBeacon("./_clientLog", `${logLevel2}::${txtToSend}`);
+  }
+  /** Easily send the entire DOM/HTML msg back to Node-RED
+   * @param {string} [originator] A Node-RED node ID to return the message to
+   * @param {boolean} [send] If true (default) directly send response to Node-RED. Is false when calling from Node-RED as a command.
+   * @returns {string} The HTML as a string
+   */
+  htmlSend(originator = "", send = true) {
+    const out = `<!doctype html>
+${document.documentElement.outerHTML}`;
+    const msg = {
+      payload: out,
+      length: out.length,
+      topic: this.topic
+    };
+    log("trace", "Uib:htmlSend", "Sending full HTML to Node-RED", msg)();
+    if (send === true)
+      this._send(msg, this._ioChannels.client, originator);
+    return out;
+  }
+  /** Send log info back to Node-RED over uibuilder's websocket control output (Port #2)
+   * @param {...*} arguments All arguments passed to the function are added to the msg.payload
+   */
+  logToServer() {
+    this.sendCtrl({
+      uibuilderCtrl: "client log message",
+      payload: arguments,
+      // "version":"6.1.0-iife.min",
+      _socketId: this._socket.id,
+      // "ip":"::1",
+      clientId: this.clientId,
+      tabId: this.tabId,
+      // "url":"esp-test",
+      pageName: this.pageName,
+      connections: this.connectedNum,
+      lastNavType: this.lastNavType
+    });
+  }
+  /** Easily send a msg back to Node-RED on a DOM event
+   * @example In plain HTML/JavaScript
+   *    `<button id="button1" name="button 1" data-fred="jim"></button>`
+   *    $('#button1').onclick = (evt) => {
+   *      uibuilder.eventSend(evt)
+   *    }
    * @example
    * In VueJS: `<b-button id="myButton1" @click="doEvent" data-something="hello"></b-button>`
    * In VueJS methods: `doEvent: uibuilder.eventSend,`
@@ -5989,294 +6321,19 @@ var Uib = (_a = class {
       log("warn", "Uib:eventSend", "No payload in msg. data-* attributes should be used.")();
     this._send(msg, this._ioChannels.client, originator);
   }
-  /** Easily send the entire DOM/HTML msg back to Node-RED
+  /** Send a standard message to NR
+   * @example uibuilder.send({payload:'Hello'})
+   * @param {object} msg Message to send
    * @param {string} [originator] A Node-RED node ID to return the message to
-   * @param {boolean} [send] If true (default) directly send response to Node-RED. Is false when calling from Node-RED as a command.
-   * @returns {string} The HTML as a string
-   */
-  htmlSend(originator = "", send = true) {
-    const out = `<!doctype html>
-${document.documentElement.outerHTML}`;
-    const msg = {
-      payload: out,
-      length: out.length,
-      topic: this.topic
-    };
-    log("trace", "Uib:htmlSend", "Sending full HTML to Node-RED", msg)();
-    if (send === true)
-      this._send(msg, this._ioChannels.client, originator);
-    return out;
-  }
-  /** Process msg._uib.command - Remember to update #extCommands with new allowed commands
-   * @param {object} msg Msg from Node-RED containing a msg._uib object
    */
-  _uibCommand(msg) {
-    if (!msg._uib || !msg._uib.command) {
-      log("error", "uibuilder:_uibCommand", "Invalid command message received", { msg })();
-      msg.payload = msg.error = "Invalid command message received";
-      this.send(msg);
-      return;
-    }
-    const cmd = msg._uib.command;
-    if (!__privateGet(this, _extCommands).includes(cmd.trim())) {
-      log("error", "Uib:_uibCommand", `Command '${cmd} is not allowed to be called externally`)();
-      return;
-    }
-    const prop = msg._uib.prop;
-    const value2 = msg._uib.value;
-    const quiet = msg._uib.quiet ?? false;
-    let response, info;
-    switch (cmd) {
-      case "elementIsVisible": {
-        response = this.elementIsVisible(prop);
-        break;
-      }
-      case "elementExists": {
-        response = this.elementExists(prop, false);
-        info = `Element "${prop}" ${response ? "exists" : "does not exist"}`;
-        break;
-      }
-      case "get": {
-        response = this.get(prop);
-        break;
-      }
-      case "getManagedVarList": {
-        if (prop === "full")
-          response = this.getManagedVarList();
-        else
-          response = Object.values(this.getManagedVarList());
-        break;
-      }
-      case "getWatchedVars": {
-        if (prop === "full")
-          response = this.getWatchedVars();
-        else
-          response = Object.values(this.getWatchedVars());
-        break;
-      }
-      case "htmlSend": {
-        response = this.htmlSend("", false);
-        break;
-      }
-      case "include": {
-        response = _ui.include(prop, value2);
-        break;
-      }
-      case "navigate": {
-        let newUrl;
-        if (prop)
-          newUrl = prop;
-        else if (value2)
-          newUrl = value2;
-        response = this.navigate(newUrl);
-        break;
-      }
-      case "scrollTo": {
-        response = this.scrollTo(prop, value2);
-        break;
-      }
-      case "set": {
-        let store = false;
-        let autoload = false;
-        if (msg._uib.options && msg._uib.options.store) {
-          if (msg._uib.options.store === true)
-            store = true;
-          if (msg._uib.options.autoload === true)
-            autoload = true;
-        }
-        response = this.set(prop, value2, store, autoload);
-        break;
-      }
-      case "showMsg": {
-        response = this.showMsg(value2, prop);
-        break;
-      }
-      case "showStatus": {
-        response = this.showStatus(value2, prop);
-        break;
-      }
-      case "uiGet": {
-        response = _ui.uiGet(prop, value2);
-        break;
-      }
-      case "uiWatch": {
-        response = this.uiWatch(prop);
-        break;
-      }
-      case "watchUrlHash": {
-        response = this.watchUrlHash(prop);
-        break;
-      }
-      default: {
-        log("warning", "Uib:_uibCommand", `Command '${cmd}' not yet implemented`)();
-        break;
-      }
-    }
-    if (quiet !== true) {
-      if (response === void 0) {
-        response = `'${prop}' is undefined`;
-      }
-      if (Object(response).constructor === Promise) {
-        response.then((data) => {
-          msg.payload = msg._uib.response = data;
-          msg.info = msg._uib.info = info;
-          if (!msg.topic)
-            msg.topic = this.topic || `uib ${cmd} for '${prop}'`;
-          this.send(msg);
-          return true;
-        }).catch((err) => {
-          log(0, "Uib:_uibCommand", "Error: ", err)();
-        });
-      } else {
-        msg.payload = msg._uib.response = response;
-        msg.info = msg._uib.info = info;
-        if (!msg.topic)
-          msg.topic = this.topic || `uib ${cmd} for '${prop}'`;
-        this.send(msg);
-      }
-    }
-  }
-  // --- end of _uibCommand ---
-  /** Do we want to process something? Check pageName, clientId, tabId. Defaults to yes.
-   * @param {*} obj Either a msg._ui or msg._uib object to check
-   * @returns {boolean} True if we should process the inbound _ui/_uib msg, false if not.
-   */
-  _forThis(obj) {
-    let r = true;
-    if (obj.pageName && obj.pageName !== this.pageName) {
-      log("trace", "Uib:_msgRcvdEvents:_uib", "Not for this page")();
-      r = false;
-    }
-    if (obj.clientId && obj.clientId !== this.clientId) {
-      log("trace", "Uib:_msgRcvdEvents:_uib", "Not for this clientId")();
-      r = false;
-    }
-    if (obj.tabId && obj.tabId !== this.tabId) {
-      log("trace", "Uib:_msgRcvdEvents:_uib", "Not for this tabId")();
-      r = false;
-    }
-    return r;
-  }
-  // Handle received messages - Process some msgs internally, emit specific events on document that make it easy for coders to use
-  _msgRcvdEvents(msg) {
-    this._dispatchCustomEvent("uibuilder:stdMsgReceived", msg);
-    if (msg.topic)
-      this._dispatchCustomEvent(`uibuilder:msg:topic:${msg.topic}`, msg);
-    if (msg._uib) {
-      if (!this._forThis(msg._uib))
-        return;
-      if (msg._uib.reload === true) {
-        log("trace", "Uib:_msgRcvdEvents:_uib:reload", "reloading")();
-        location.reload();
-        return;
-      }
-      if (msg._uib.command) {
-        this._uibCommand(msg);
-        return;
-      }
-      if (msg._uib.componentRef === "globalNotification") {
-        _ui.showDialog("notify", msg._uib.options, msg);
-      }
-      if (msg._uib.componentRef === "globalAlert") {
-        _ui.showDialog("alert", msg._uib.options, msg);
-      }
-    }
-    if (msg._ui) {
-      if (!this._forThis(msg._ui))
-        return;
-      log("trace", "Uib:_msgRcvdEvents:_ui", "Calling _uiManager")();
-      this._dispatchCustomEvent("uibuilder:msg:_ui", msg);
-      _ui._uiManager(msg);
-    }
-  }
-  // --- end of _msgRcvdEvents ---
-  /** Callback handler for messages from Node-RED
-   * NOTE: `this` is the class here rather the `socket` as would be normal since we bind the correct `this` in the call.
-   *       Use this._socket if needing reference to the socket.
-   * @callback ioSetupFromServer Called from ioSetup/this._socket.on(this.#ioChannels.server, this.stdMsgFromServer.bind(this))
-   * @param {object} receivedMsg The msg object from Node-RED
-   * @this Uib
-   */
-  _stdMsgFromServer(receivedMsg) {
-    receivedMsg = makeMeAnObject(receivedMsg, "payload");
-    if (receivedMsg._uib && !this._forThis(receivedMsg._uib))
-      return;
-    if (receivedMsg._ui && !this._forThis(receivedMsg._ui))
-      return;
-    this._checkTimestamp(receivedMsg);
-    this.set("msgsReceived", ++this.msgsReceived);
-    this._msgRcvdEvents(receivedMsg);
-    if (!("_ui" in receivedMsg && !("payload" in receivedMsg))) {
-      this.set("msg", receivedMsg);
-    }
-    log("info", "Uib:ioSetup:stdMsgFromServer", `Channel '${this._ioChannels.server}'. Received msg #${this.msgsReceived}.`, receivedMsg)();
-  }
-  // -- End of websocket receive DATA msg from Node-RED -- //
-  /** Handles original control msgs (not to be confused with "new" msg._uib controls)
-   * @param {*} receivedCtrlMsg The msg received on the socket.io control channel
-   */
-  _ctrlMsgFromServer(receivedCtrlMsg) {
-    if (receivedCtrlMsg === null) {
-      receivedCtrlMsg = {};
-    } else if (typeof receivedCtrlMsg !== "object") {
-      const msg = {};
-      msg["uibuilderCtrl:" + this._ioChannels.control] = receivedCtrlMsg;
-      receivedCtrlMsg = msg;
-    }
-    this._checkTimestamp(receivedCtrlMsg);
-    this.set("ctrlMsg", receivedCtrlMsg);
-    this.set("msgsCtrlReceived", ++this.msgsCtrlReceived);
-    log("trace", "Uib:ioSetup:_ctrlMsgFromServer", `Channel '${this._ioChannels.control}'. Received control msg #${this.msgsCtrlReceived}`, receivedCtrlMsg)();
-    switch (receivedCtrlMsg.uibuilderCtrl) {
-      case "shutdown": {
-        log("info", `Uib:ioSetup:${this._ioChannels.control}`, '\u274C Received "shutdown" from server')();
-        this.set("serverShutdown", void 0);
-        break;
-      }
-      case "client connect": {
-        log("trace", `Uib:ioSetup:${this._ioChannels.control}`, 'Received "client connect" from server')();
-        log("info", `Uib:ioSetup:${this._ioChannels.control}`, `\u2705 Server connected. Version: ${receivedCtrlMsg.version}
-Server time: ${receivedCtrlMsg.serverTimestamp}, Sever time offset: ${this.serverTimeOffset} hours`)();
-        if (!_a._meta.version.startsWith(receivedCtrlMsg.version.split("-")[0])) {
-          log("warn", `Uib:ioSetup:${this._ioChannels.control}`, `Server version (${receivedCtrlMsg.version}) not the same as the client version (${_a._meta.version})`)();
-        }
-        if (this.autoSendReady === true) {
-          log("trace", `Uib:ioSetup:${this._ioChannels.control}/client connect`, "Auto-sending ready-for-content/replay msg to server");
-        }
-        break;
-      }
-      default: {
-        log("trace", `uibuilderfe:ioSetup:${this._ioChannels.control}`, `Received ${receivedCtrlMsg.uibuilderCtrl} from server`);
-      }
-    }
-  }
-  // -- End of websocket receive CONTROL msg from Node-RED -- //
-  /** Send log text to uibuilder's beacon endpoint (works even if socket.io not connected)
-   * @param {string} txtToSend Text string to send
-   * @param {string|undefined} logLevel Log level to use. If not supplied, will default to debug
-   */
-  beaconLog(txtToSend, logLevel2) {
-    if (!logLevel2)
-      logLevel2 = "debug";
-    navigator.sendBeacon("./_clientLog", `${logLevel2}::${txtToSend}`);
+  send(msg, originator = "") {
+    this._send(msg, this._ioChannels.client, originator);
   }
-  /** Send log info back to Node-RED over uibuilder's websocket control output (Port #2)
-   * @param {...*} arguments All arguments passed to the function are added to the msg.payload
+  /** Send a control msg to NR
+   * @param {object} msg Message to send
    */
-  logToServer() {
-    this.sendCtrl({
-      uibuilderCtrl: "client log message",
-      payload: arguments,
-      // "version":"6.1.0-iife.min",
-      _socketId: this._socket.id,
-      // "ip":"::1",
-      clientId: this.clientId,
-      tabId: this.tabId,
-      // "url":"esp-test",
-      pageName: this.pageName,
-      connections: this.connectedNum,
-      lastNavType: this.lastNavType
-    });
+  sendCtrl(msg) {
+    this._send(msg, this._ioChannels.control);
   }
   //#endregion -------- ------------ -------- //
   //#region ------- Socket.IO -------- //
@@ -6499,12 +6556,17 @@ if (!window["uib"]) {
 if (!window["$"]) {
   window["$"] = window["uibuilder"].$;
 } else {
-  log("warn", "uibuilder.module.js", "Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` instead.");
+  log("warn", "uibuilder.module.js", "Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` or `uib.$` instead.");
 }
 if (!window["$$"]) {
   window["$$"] = window["uibuilder"].$$;
 } else {
-  log("warn", "uibuilder.module.js", "Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` instead.");
+  log("warn", "uibuilder.module.js", "Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` or `uib.$$` instead.");
+}
+if (!window["$ui"]) {
+  window["$ui"] = window["uibuilder"].$ui;
+} else {
+  log("warn", "uibuilder.module.js", "Cannot allocate the global `$ui`, it is already in use. Use `uibuilder.$ui` or `uib.$ui` instead.");
 }
 var uibuilder_module_default = uibuilder;
 uibuilder.start();
diff --git a/front-end/uibuilder.esm.min.js b/front-end/uibuilder.esm.min.js
index e89c0ca8..2c5f6b48 100644
--- a/front-end/uibuilder.esm.min.js
+++ b/front-end/uibuilder.esm.min.js
@@ -1,2 +1,2 @@
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e=0,t=this.upgrades.length;for(;e<t;e++)this.probe(this.upgrades[e])}}onPacket(e){if(this.readyState==="opening"||this.readyState==="open"||this.readyState==="closing")switch(this.emitReserved("packet",e),this.emitReserved("heartbeat"),this.resetPingTimeout(),e.type){case"open":this.onHandshake(JSON.parse(e.data));break;case"ping":this.sendPacket("pong"),this.emitReserved("ping"),this.emitReserved("pong");break;case"error":let t=new Error("server error");t.code=e.data,this.onError(t);break;case"message":this.emitReserved("data",e.data),this.emitReserved("message",e.data);break}}onHandshake(e){this.emitReserved("handshake",e),this.id=e.sid,this.transport.query.sid=e.sid,this.upgrades=this.filterUpgrades(e.upgrades),this.pingInterval=e.pingInterval,this.pingTimeout=e.pingTimeout,this.maxPayload=e.maxPayload,this.onOpen(),this.readyState!=="closed"&&this.resetPingTimeout()}resetPingTimeout(){this.clearTimeoutFn(this.pingTimeoutTimer),this.pingTimeoutTimer=this.setTimeoutFn(()=>{this.onClose("ping timeout")},this.pingInterval+this.pingTimeout),this.opts.autoUnref&&this.pingTimeoutTimer.unref()}onDrain(){this.writeBuffer.splice(0,this.prevBufferLen),this.prevBufferLen=0,this.writeBuffer.length===0?this.emitReserved("drain"):this.flush()}flush(){if(this.readyState!=="closed"&&this.transport.writable&&!this.upgrading&&this.writeBuffer.length){let e=this.getWritablePackets();this.transport.send(e),this.prevBufferLen=e.length,this.emitReserved("flush")}}getWritablePackets(){if(!(this.maxPayload&&this.transport.name==="polling"&&this.writeBuffer.length>1))return this.writeBuffer;let t=1;for(let i=0;i<this.writeBuffer.length;i++){let r=this.writeBuffer[i].data;if(r&&(t+=tt(r)),i>0&&t>this.maxPayload)return this.writeBuffer.slice(0,i);t+=2}return this.writeBuffer}write(e,t,i){return this.sendPacket("message",e,t,i),this}send(e,t,i){return this.sendPacket("message",e,t,i),this}sendPacket(e,t,i,r){if(typeof t=="function"&&(r=t,t=void 0),typeof i=="function"&&(r=i,i=null),this.readyState==="closing"||this.readyState==="closed")return;i=i||{},i.compress=i.compress!==!1;let n={type:e,data:t,options:i};this.emitReserved("packetCreate",n),this.writeBuffer.push(n),r&&this.once("flush",r),this.flush()}close(){let e=()=>{this.onClose("forced close"),this.transport.close()},t=()=>{this.off("upgrade",t),this.off("upgradeError",t),e()},i=()=>{this.once("upgrade",t),this.once("upgradeError",t)};return(this.readyState==="opening"||this.readyState==="open")&&(this.readyState="closing",this.writeBuffer.length?this.once("drain",()=>{this.upgrading?i():e()}):this.upgrading?i():e()),this}onError(e){s.priorWebsocketSuccess=!1,this.emitReserved("error",e),this.onClose("transport error",e)}onClose(e,t){(this.readyState==="opening"||this.readyState==="open"||this.readyState==="closing")&&(this.clearTimeoutFn(this.pingTimeoutTimer),this.transport.removeAllListeners("close"),this.transport.close(),this.transport.removeAllListeners(),typeof removeEventListener=="function"&&(removeEventListener("beforeunload",this.beforeunloadEventListener,!1),removeEventListener("offline",this.offlineEventListener,!1)),this.readyState="closed",this.id=null,this.emitReserved("close",e,t),this.writeBuffer=[],this.prevBufferLen=0)}filterUpgrades(e){let t=[],i=0,r=e.length;for(;i<r;i++)~this.transports.indexOf(e[i])&&t.push(e[i]);return t}};B.protocol=xe;var fs=B.protocol;function ft(s,e="",t){let i=s;t=t||typeof location<"u"&&location,s==null&&(s=t.protocol+"//"+t.host),typeof s=="string"&&(s.charAt(0)==="/"&&(s.charAt(1)==="/"?s=t.protocol+s:s=t.host+s),/^(https?|wss?):\/\//.test(s)||(typeof t<"u"?s=t.protocol+"//"+s:s="https://"+s),i=j(s)),i.port||(/^(http|ws)$/.test(i.protocol)?i.port="80":/^(http|ws)s$/.test(i.protocol)&&(i.port="443")),i.path=i.path||"/";let n=i.host.indexOf(":")!==-1?"["+i.host+"]":i.host;return i.id=i.protocol+"://"+n+":"+i.port+e,i.href=i.protocol+"://"+n+(t&&t.port===i.port?"":":"+i.port),i}var Ie={};Rt(Ie,{Decoder:()=>Le,Encoder:()=>$e,PacketType:()=>p,protocol:()=>bt});var Kt=typeof ArrayBuffer=="function",Jt=s=>typeof ArrayBuffer.isView=="function"?ArrayBuffer.isView(s):s.buffer instanceof ArrayBuffer,pt=Object.prototype.toString,zt=typeof Blob=="function"||typeof Blob<"u"&&pt.call(Blob)==="[object BlobConstructor]",Yt=typeof File=="function"||typeof File<"u"&&pt.call(File)==="[object FileConstructor]";function re(s){return Kt&&(s instanceof ArrayBuffer||Jt(s))||zt&&s instanceof Blob||Yt&&s instanceof File}function se(s,e){if(!s||typeof s!="object")return!1;if(Array.isArray(s)){for(let t=0,i=s.length;t<i;t++)if(se(s[t]))return!0;return!1}if(re(s))return!0;if(s.toJSON&&typeof s.toJSON=="function"&&arguments.length===1)return se(s.toJSON(),!0);for(let t in s)if(Object.prototype.hasOwnProperty.call(s,t)&&se(s[t]))return!0;return!1}function mt(s){let e=[],t=s.data,i=s;return i.data=Ae(t,e),i.attachments=e.length,{packet:i,buffers:e}}function Ae(s,e){if(!s)return s;if(re(s)){let t={_placeholder:!0,num:e.length};return e.push(s),t}else if(Array.isArray(s)){let t=new Array(s.length);for(let i=0;i<s.length;i++)t[i]=Ae(s[i],e);return t}else if(typeof s=="object"&&!(s instanceof Date)){let t={};for(let i in s)Object.prototype.hasOwnProperty.call(s,i)&&(t[i]=Ae(s[i],e));return t}return s}function gt(s,e){return s.data=Te(s.data,e),delete s.attachments,s}function Te(s,e){if(!s)return s;if(s&&s._placeholder===!0){if(typeof s.num=="number"&&s.num>=0&&s.num<e.length)return e[s.num];throw new Error("illegal attachments")}else if(Array.isArray(s))for(let t=0;t<s.length;t++)s[t]=Te(s[t],e);else if(typeof s=="object")for(let t in s)Object.prototype.hasOwnProperty.call(s,t)&&(s[t]=Te(s[t],e));return s}var Gt=["connect","connect_error","disconnect","disconnecting","newListener","removeListener"],bt=5,p;(function(s){s[s.CONNECT=0]="CONNECT",s[s.DISCONNECT=1]="DISCONNECT",s[s.EVENT=2]="EVENT",s[s.ACK=3]="ACK",s[s.CONNECT_ERROR=4]="CONNECT_ERROR",s[s.BINARY_EVENT=5]="BINARY_EVENT",s[s.BINARY_ACK=6]="BINARY_ACK"})(p||(p={}));var $e=class{constructor(e){this.replacer=e}encode(e){return(e.type===p.EVENT||e.type===p.ACK)&&se(e)?this.encodeAsBinary({type:e.type===p.EVENT?p.BINARY_EVENT:p.BINARY_ACK,nsp:e.nsp,data:e.data,id:e.id}):[this.encodeAsString(e)]}encodeAsString(e){let t=""+e.type;return(e.type===p.BINARY_EVENT||e.type===p.BINARY_ACK)&&(t+=e.attachments+"-"),e.nsp&&e.nsp!=="/"&&(t+=e.nsp+","),e.id!=null&&(t+=e.id),e.data!=null&&(t+=JSON.stringify(e.data,this.replacer)),t}encodeAsBinary(e){let t=mt(e),i=this.encodeAsString(t.packet),r=t.buffers;return r.unshift(i),r}};function yt(s){return Object.prototype.toString.call(s)==="[object Object]"}var Le=class s extends y{constructor(e){super(),this.reviver=e}add(e){let t;if(typeof e=="string"){if(this.reconstructor)throw new Error("got plaintext data when reconstructing a packet");t=this.decodeString(e);let i=t.type===p.BINARY_EVENT;i||t.type===p.BINARY_ACK?(t.type=i?p.EVENT:p.ACK,this.reconstructor=new Ue(t),t.attachments===0&&super.emitReserved("decoded",t)):super.emitReserved("decoded",t)}else if(re(e)||e.base64)if(this.reconstructor)t=this.reconstructor.takeBinaryData(e),t&&(this.reconstructor=null,super.emitReserved("decoded",t));else throw new Error("got binary data when not reconstructing a packet");else throw new Error("Unknown type: "+e)}decodeString(e){let t=0,i={type:Number(e.charAt(0))};if(p[i.type]===void 0)throw new Error("unknown packet type "+i.type);if(i.type===p.BINARY_EVENT||i.type===p.BINARY_ACK){let n=t+1;for(;e.charAt(++t)!=="-"&&t!=e.length;);let o=e.substring(n,t);if(o!=Number(o)||e.charAt(t)!=="-")throw new Error("Illegal attachments");i.attachments=Number(o)}if(e.charAt(t+1)==="/"){let n=t+1;for(;++t&&!(e.charAt(t)===","||t===e.length););i.nsp=e.substring(n,t)}else i.nsp="/";let r=e.charAt(t+1);if(r!==""&&Number(r)==r){let n=t+1;for(;++t;){let o=e.charAt(t);if(o==null||Number(o)!=o){--t;break}if(t===e.length)break}i.id=Number(e.substring(n,t+1))}if(e.charAt(++t)){let n=this.tryParse(e.substr(t));if(s.isPayloadValid(i.type,n))i.data=n;else throw new Error("invalid payload")}return i}tryParse(e){try{return JSON.parse(e,this.reviver)}catch{return!1}}static isPayloadValid(e,t){switch(e){case p.CONNECT:return yt(t);case p.DISCONNECT:return t===void 0;case p.CONNECT_ERROR:return typeof t=="string"||yt(t);case p.EVENT:case p.BINARY_EVENT:return Array.isArray(t)&&(typeof t[0]=="number"||typeof t[0]=="string"&&Gt.indexOf(t[0])===-1);case p.ACK:case p.BINARY_ACK:return Array.isArray(t)}}destroy(){this.reconstructor&&(this.reconstructor.finishedReconstruction(),this.reconstructor=null)}},Ue=class{constructor(e){this.packet=e,this.buffers=[],this.reconPack=e}takeBinaryData(e){if(this.buffers.push(e),this.buffers.length===this.reconPack.attachments){let t=gt(this.reconPack,this.buffers);return this.finishedReconstruction(),t}return null}finishedReconstruction(){this.reconPack=null,this.buffers=[]}};function S(s,e,t){return s.on(e,t),function(){s.off(e,t)}}var Xt=Object.freeze({connect:1,connect_error:1,disconnect:1,disconnecting:1,newListener:1,removeListener:1}),W=class extends y{constructor(e,t,i){super(),this.connected=!1,this.recovered=!1,this.receiveBuffer=[],this.sendBuffer=[],this._queue=[],this._queueSeq=0,this.ids=0,this.acks={},this.flags={},this.io=e,this.nsp=t,i&&i.auth&&(this.auth=i.auth),this._opts=Object.assign({},i),this.io._autoConnect&&this.open()}get disconnected(){return!this.connected}subEvents(){if(this.subs)return;let e=this.io;this.subs=[S(e,"open",this.onopen.bind(this)),S(e,"packet",this.onpacket.bind(this)),S(e,"error",this.onerror.bind(this)),S(e,"close",this.onclose.bind(this))]}get active(){return!!this.subs}connect(){return this.connected?this:(this.subEvents(),this.io._reconnecting||this.io.open(),this.io._readyState==="open"&&this.onopen(),this)}open(){return this.connect()}send(...e){return e.unshift("message"),this.emit.apply(this,e),this}emit(e,...t){if(Xt.hasOwnProperty(e))throw new Error('"'+e.toString()+'" is a reserved event name');if(t.unshift(e),this._opts.retries&&!this.flags.fromQueue&&!this.flags.volatile)return this._addToQueue(t),this;let i={type:p.EVENT,data:t};if(i.options={},i.options.compress=this.flags.compress!==!1,typeof t[t.length-1]=="function"){let o=this.ids++,c=t.pop();this._registerAckCallback(o,c),i.id=o}let r=this.io.engine&&this.io.engine.transport&&this.io.engine.transport.writable;return this.flags.volatile&&(!r||!this.connected)||(this.connected?(this.notifyOutgoingListeners(i),this.packet(i)):this.sendBuffer.push(i)),this.flags={},this}_registerAckCallback(e,t){var i;let r=(i=this.flags.timeout)!==null&&i!==void 0?i:this._opts.ackTimeout;if(r===void 0){this.acks[e]=t;return}let n=this.io.setTimeoutFn(()=>{delete this.acks[e];for(let o=0;o<this.sendBuffer.length;o++)this.sendBuffer[o].id===e&&this.sendBuffer.splice(o,1);t.call(this,new Error("operation has timed out"))},r);this.acks[e]=(...o)=>{this.io.clearTimeoutFn(n),t.apply(this,[null,...o])}}emitWithAck(e,...t){let i=this.flags.timeout!==void 0||this._opts.ackTimeout!==void 0;return new Promise((r,n)=>{t.push((o,c)=>i?o?n(o):r(c):r(o)),this.emit(e,...t)})}_addToQueue(e){let t;typeof e[e.length-1]=="function"&&(t=e.pop());let i={id:this._queueSeq++,tryCount:0,pending:!1,args:e,flags:Object.assign({fromQueue:!0},this.flags)};e.push((r,...n)=>i!==this._queue[0]?void 0:(r!==null?i.tryCount>this._opts.retries&&(this._queue.shift(),t&&t(r)):(this._queue.shift(),t&&t(null,...n)),i.pending=!1,this._drainQueue())),this._queue.push(i),this._drainQueue()}_drainQueue(e=!1){if(!this.connected||this._queue.length===0)return;let t=this._queue[0];t.pending&&!e||(t.pending=!0,t.tryCount++,this.flags=t.flags,this.emit.apply(this,t.args))}packet(e){e.nsp=this.nsp,this.io._packet(e)}onopen(){typeof this.auth=="function"?this.auth(e=>{this._sendConnectPacket(e)}):this._sendConnectPacket(this.auth)}_sendConnectPacket(e){this.packet({type:p.CONNECT,data:this._pid?Object.assign({pid:this._pid,offset:this._lastOffset},e):e})}onerror(e){this.connected||this.emitReserved("connect_error",e)}onclose(e,t){this.connected=!1,delete this.id,this.emitReserved("disconnect",e,t)}onpacket(e){if(e.nsp===this.nsp)switch(e.type){case p.CONNECT:e.data&&e.data.sid?this.onconnect(e.data.sid,e.data.pid):this.emitReserved("connect_error",new Error("It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)"));break;case p.EVENT:case p.BINARY_EVENT:this.onevent(e);break;case p.ACK:case p.BINARY_ACK:this.onack(e);break;case p.DISCONNECT:this.ondisconnect();break;case p.CONNECT_ERROR:this.destroy();let i=new Error(e.data.message);i.data=e.data.data,this.emitReserved("connect_error",i);break}}onevent(e){let t=e.data||[];e.id!=null&&t.push(this.ack(e.id)),this.connected?this.emitEvent(t):this.receiveBuffer.push(Object.freeze(t))}emitEvent(e){if(this._anyListeners&&this._anyListeners.length){let t=this._anyListeners.slice();for(let i of t)i.apply(this,e)}super.emit.apply(this,e),this._pid&&e.length&&typeof e[e.length-1]=="string"&&(this._lastOffset=e[e.length-1])}ack(e){let t=this,i=!1;return function(...r){i||(i=!0,t.packet({type:p.ACK,id:e,data:r}))}}onack(e){let t=this.acks[e.id];typeof t=="function"&&(t.apply(this,e.data),delete this.acks[e.id])}onconnect(e,t){this.id=e,this.recovered=t&&this._pid===t,this._pid=t,this.connected=!0,this.emitBuffered(),this.emitReserved("connect"),this._drainQueue(!0)}emitBuffered(){this.receiveBuffer.forEach(e=>this.emitEvent(e)),this.receiveBuffer=[],this.sendBuffer.forEach(e=>{this.notifyOutgoingListeners(e),this.packet(e)}),this.sendBuffer=[]}ondisconnect(){this.destroy(),this.onclose("io server disconnect")}destroy(){this.subs&&(this.subs.forEach(e=>e()),this.subs=void 0),this.io._destroy(this)}disconnect(){return this.connected&&this.packet({type:p.DISCONNECT}),this.destroy(),this.connected&&this.onclose("io client disconnect"),this}close(){return this.disconnect()}compress(e){return this.flags.compress=e,this}get volatile(){return this.flags.volatile=!0,this}timeout(e){return this.flags.timeout=e,this}onAny(e){return this._anyListeners=this._anyListeners||[],this._anyListeners.push(e),this}prependAny(e){return this._anyListeners=this._anyListeners||[],this._anyListeners.unshift(e),this}offAny(e){if(!this._anyListeners)return this;if(e){let t=this._anyListeners;for(let i=0;i<t.length;i++)if(e===t[i])return t.splice(i,1),this}else this._anyListeners=[];return this}listenersAny(){return this._anyListeners||[]}onAnyOutgoing(e){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.push(e),this}prependAnyOutgoing(e){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.unshift(e),this}offAnyOutgoing(e){if(!this._anyOutgoingListeners)return this;if(e){let t=this._anyOutgoingListeners;for(let i=0;i<t.length;i++)if(e===t[i])return t.splice(i,1),this}else this._anyOutgoingListeners=[];return this}listenersAnyOutgoing(){return this._anyOutgoingListeners||[]}notifyOutgoingListeners(e){if(this._anyOutgoingListeners&&this._anyOutgoingListeners.length){let t=this._anyOutgoingListeners.slice();for(let i of t)i.apply(this,e.data)}}};function P(s){s=s||{},this.ms=s.min||100,this.max=s.max||1e4,this.factor=s.factor||2,this.jitter=s.jitter>0&&s.jitter<=1?s.jitter:0,this.attempts=0}P.prototype.duration=function(){var s=this.ms*Math.pow(this.factor,this.attempts++);if(this.jitter){var e=Math.random(),t=Math.floor(e*this.jitter*s);s=Math.floor(e*10)&1?s+t:s-t}return Math.min(s,this.max)|0};P.prototype.reset=function(){this.attempts=0};P.prototype.setMin=function(s){this.ms=s};P.prototype.setMax=function(s){this.max=s};P.prototype.setJitter=function(s){this.jitter=s};var K=class extends y{constructor(e,t){var i;super(),this.nsps={},this.subs=[],e&&typeof e=="object"&&(t=e,e=void 0),t=t||{},t.path=t.path||"/socket.io",this.opts=t,$(this,t),this.reconnection(t.reconnection!==!1),this.reconnectionAttempts(t.reconnectionAttempts||1/0),this.reconnectionDelay(t.reconnectionDelay||1e3),this.reconnectionDelayMax(t.reconnectionDelayMax||5e3),this.randomizationFactor((i=t.randomizationFactor)!==null&&i!==void 0?i:.5),this.backoff=new P({min:this.reconnectionDelay(),max:this.reconnectionDelayMax(),jitter:this.randomizationFactor()}),this.timeout(t.timeout==null?2e4:t.timeout),this._readyState="closed",this.uri=e;let r=t.parser||Ie;this.encoder=new r.Encoder,this.decoder=new r.Decoder,this._autoConnect=t.autoConnect!==!1,this._autoConnect&&this.open()}reconnection(e){return arguments.length?(this._reconnection=!!e,this):this._reconnection}reconnectionAttempts(e){return e===void 0?this._reconnectionAttempts:(this._reconnectionAttempts=e,this)}reconnectionDelay(e){var t;return e===void 0?this._reconnectionDelay:(this._reconnectionDelay=e,(t=this.backoff)===null||t===void 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e=this.transports[0];this.readyState="opening";try{e=this.createTransport(e)}catch{this.transports.shift(),this.open();return}e.open(),this.setTransport(e)}setTransport(e){this.transport&&this.transport.removeAllListeners(),this.transport=e,e.on("drain",this.onDrain.bind(this)).on("packet",this.onPacket.bind(this)).on("error",this.onError.bind(this)).on("close",t=>this.onClose("transport close",t))}probe(e){let t=this.createTransport(e),i=!1;s.priorWebsocketSuccess=!1;let r=()=>{i||(t.send([{type:"ping",data:"probe"}]),t.once("packet",x=>{if(!i)if(x.type==="pong"&&x.data==="probe"){if(this.upgrading=!0,this.emitReserved("upgrading",t),!t)return;s.priorWebsocketSuccess=t.name==="websocket",this.transport.pause(()=>{i||this.readyState!=="closed"&&(y(),this.setTransport(t),t.send([{type:"upgrade"}]),this.emitReserved("upgrade",t),t=null,this.upgrading=!1,this.flush())})}else{let k=new Error("probe error");k.transport=t.name,this.emitReserved("upgradeError",k)}}))};function n(){i||(i=!0,y(),t.close(),t=null)}let o=x=>{let k=new Error("probe error: "+x);k.transport=t.name,n(),this.emitReserved("upgradeError",k)};function c(){o("transport closed")}function h(){o("socket closed")}function u(x){t&&x.name!==t.name&&n()}let y=()=>{t.removeListener("open",r),t.removeListener("error",o),t.removeListener("close",c),this.off("close",h),this.off("upgrading",u)};t.once("open",r),t.once("error",o),t.once("close",c),this.once("close",h),this.once("upgrading",u),this.upgrades.indexOf("webtransport")!==-1&&e!=="webtransport"?this.setTimeoutFn(()=>{i||t.open()},200):t.open()}onOpen(){if(this.readyState="open",s.priorWebsocketSuccess=this.transport.name==="websocket",this.emitReserved("open"),this.flush(),this.readyState==="open"&&this.opts.upgrade){let e=0,t=this.upgrades.length;for(;e<t;e++)this.probe(this.upgrades[e])}}onPacket(e){if(this.readyState==="opening"||this.readyState==="open"||this.readyState==="closing")switch(this.emitReserved("packet",e),this.emitReserved("heartbeat"),this.resetPingTimeout(),e.type){case"open":this.onHandshake(JSON.parse(e.data));break;case"ping":this.sendPacket("pong"),this.emitReserved("ping"),this.emitReserved("pong");break;case"error":let t=new Error("server error");t.code=e.data,this.onError(t);break;case"message":this.emitReserved("data",e.data),this.emitReserved("message",e.data);break}}onHandshake(e){this.emitReserved("handshake",e),this.id=e.sid,this.transport.query.sid=e.sid,this.upgrades=this.filterUpgrades(e.upgrades),this.pingInterval=e.pingInterval,this.pingTimeout=e.pingTimeout,this.maxPayload=e.maxPayload,this.onOpen(),this.readyState!=="closed"&&this.resetPingTimeout()}resetPingTimeout(){this.clearTimeoutFn(this.pingTimeoutTimer),this.pingTimeoutTimer=this.setTimeoutFn(()=>{this.onClose("ping timeout")},this.pingInterval+this.pingTimeout),this.opts.autoUnref&&this.pingTimeoutTimer.unref()}onDrain(){this.writeBuffer.splice(0,this.prevBufferLen),this.prevBufferLen=0,this.writeBuffer.length===0?this.emitReserved("drain"):this.flush()}flush(){if(this.readyState!=="closed"&&this.transport.writable&&!this.upgrading&&this.writeBuffer.length){let e=this.getWritablePackets();this.transport.send(e),this.prevBufferLen=e.length,this.emitReserved("flush")}}getWritablePackets(){if(!(this.maxPayload&&this.transport.name==="polling"&&this.writeBuffer.length>1))return this.writeBuffer;let t=1;for(let i=0;i<this.writeBuffer.length;i++){let r=this.writeBuffer[i].data;if(r&&(t+=tt(r)),i>0&&t>this.maxPayload)return this.writeBuffer.slice(0,i);t+=2}return this.writeBuffer}write(e,t,i){return this.sendPacket("message",e,t,i),this}send(e,t,i){return this.sendPacket("message",e,t,i),this}sendPacket(e,t,i,r){if(typeof t=="function"&&(r=t,t=void 0),typeof i=="function"&&(r=i,i=null),this.readyState==="closing"||this.readyState==="closed")return;i=i||{},i.compress=i.compress!==!1;let n={type:e,data:t,options:i};this.emitReserved("packetCreate",n),this.writeBuffer.push(n),r&&this.once("flush",r),this.flush()}close(){let e=()=>{this.onClose("forced close"),this.transport.close()},t=()=>{this.off("upgrade",t),this.off("upgradeError",t),e()},i=()=>{this.once("upgrade",t),this.once("upgradeError",t)};return(this.readyState==="opening"||this.readyState==="open")&&(this.readyState="closing",this.writeBuffer.length?this.once("drain",()=>{this.upgrading?i():e()}):this.upgrading?i():e()),this}onError(e){s.priorWebsocketSuccess=!1,this.emitReserved("error",e),this.onClose("transport error",e)}onClose(e,t){(this.readyState==="opening"||this.readyState==="open"||this.readyState==="closing")&&(this.clearTimeoutFn(this.pingTimeoutTimer),this.transport.removeAllListeners("close"),this.transport.close(),this.transport.removeAllListeners(),typeof removeEventListener=="function"&&(removeEventListener("beforeunload",this.beforeunloadEventListener,!1),removeEventListener("offline",this.offlineEventListener,!1)),this.readyState="closed",this.id=null,this.emitReserved("close",e,t),this.writeBuffer=[],this.prevBufferLen=0)}filterUpgrades(e){let t=[],i=0,r=e.length;for(;i<r;i++)~this.transports.indexOf(e[i])&&t.push(e[i]);return t}};B.protocol=xe;var fs=B.protocol;function ft(s,e="",t){let i=s;t=t||typeof location<"u"&&location,s==null&&(s=t.protocol+"//"+t.host),typeof s=="string"&&(s.charAt(0)==="/"&&(s.charAt(1)==="/"?s=t.protocol+s:s=t.host+s),/^(https?|wss?):\/\//.test(s)||(typeof t<"u"?s=t.protocol+"//"+s:s="https://"+s),i=j(s)),i.port||(/^(http|ws)$/.test(i.protocol)?i.port="80":/^(http|ws)s$/.test(i.protocol)&&(i.port="443")),i.path=i.path||"/";let n=i.host.indexOf(":")!==-1?"["+i.host+"]":i.host;return i.id=i.protocol+"://"+n+":"+i.port+e,i.href=i.protocol+"://"+n+(t&&t.port===i.port?"":":"+i.port),i}var Ie={};Rt(Ie,{Decoder:()=>Le,Encoder:()=>Te,PacketType:()=>p,protocol:()=>bt});var Kt=typeof ArrayBuffer=="function",Jt=s=>typeof ArrayBuffer.isView=="function"?ArrayBuffer.isView(s):s.buffer instanceof ArrayBuffer,pt=Object.prototype.toString,zt=typeof Blob=="function"||typeof Blob<"u"&&pt.call(Blob)==="[object BlobConstructor]",Yt=typeof File=="function"||typeof File<"u"&&pt.call(File)==="[object FileConstructor]";function re(s){return Kt&&(s instanceof ArrayBuffer||Jt(s))||zt&&s instanceof Blob||Yt&&s instanceof File}function se(s,e){if(!s||typeof s!="object")return!1;if(Array.isArray(s)){for(let t=0,i=s.length;t<i;t++)if(se(s[t]))return!0;return!1}if(re(s))return!0;if(s.toJSON&&typeof s.toJSON=="function"&&arguments.length===1)return se(s.toJSON(),!0);for(let t in s)if(Object.prototype.hasOwnProperty.call(s,t)&&se(s[t]))return!0;return!1}function mt(s){let e=[],t=s.data,i=s;return i.data=Ae(t,e),i.attachments=e.length,{packet:i,buffers:e}}function Ae(s,e){if(!s)return s;if(re(s)){let t={_placeholder:!0,num:e.length};return e.push(s),t}else if(Array.isArray(s)){let t=new Array(s.length);for(let i=0;i<s.length;i++)t[i]=Ae(s[i],e);return t}else if(typeof s=="object"&&!(s instanceof Date)){let t={};for(let i in s)Object.prototype.hasOwnProperty.call(s,i)&&(t[i]=Ae(s[i],e));return t}return s}function gt(s,e){return s.data=$e(s.data,e),delete s.attachments,s}function $e(s,e){if(!s)return s;if(s&&s._placeholder===!0){if(typeof s.num=="number"&&s.num>=0&&s.num<e.length)return e[s.num];throw new Error("illegal attachments")}else if(Array.isArray(s))for(let t=0;t<s.length;t++)s[t]=$e(s[t],e);else if(typeof s=="object")for(let t in s)Object.prototype.hasOwnProperty.call(s,t)&&(s[t]=$e(s[t],e));return s}var Gt=["connect","connect_error","disconnect","disconnecting","newListener","removeListener"],bt=5,p;(function(s){s[s.CONNECT=0]="CONNECT",s[s.DISCONNECT=1]="DISCONNECT",s[s.EVENT=2]="EVENT",s[s.ACK=3]="ACK",s[s.CONNECT_ERROR=4]="CONNECT_ERROR",s[s.BINARY_EVENT=5]="BINARY_EVENT",s[s.BINARY_ACK=6]="BINARY_ACK"})(p||(p={}));var Te=class{constructor(e){this.replacer=e}encode(e){return(e.type===p.EVENT||e.type===p.ACK)&&se(e)?this.encodeAsBinary({type:e.type===p.EVENT?p.BINARY_EVENT:p.BINARY_ACK,nsp:e.nsp,data:e.data,id:e.id}):[this.encodeAsString(e)]}encodeAsString(e){let t=""+e.type;return(e.type===p.BINARY_EVENT||e.type===p.BINARY_ACK)&&(t+=e.attachments+"-"),e.nsp&&e.nsp!=="/"&&(t+=e.nsp+","),e.id!=null&&(t+=e.id),e.data!=null&&(t+=JSON.stringify(e.data,this.replacer)),t}encodeAsBinary(e){let t=mt(e),i=this.encodeAsString(t.packet),r=t.buffers;return r.unshift(i),r}};function yt(s){return Object.prototype.toString.call(s)==="[object Object]"}var Le=class s extends b{constructor(e){super(),this.reviver=e}add(e){let t;if(typeof e=="string"){if(this.reconstructor)throw new Error("got plaintext data when reconstructing a packet");t=this.decodeString(e);let i=t.type===p.BINARY_EVENT;i||t.type===p.BINARY_ACK?(t.type=i?p.EVENT:p.ACK,this.reconstructor=new Ue(t),t.attachments===0&&super.emitReserved("decoded",t)):super.emitReserved("decoded",t)}else if(re(e)||e.base64)if(this.reconstructor)t=this.reconstructor.takeBinaryData(e),t&&(this.reconstructor=null,super.emitReserved("decoded",t));else throw new Error("got binary data when not reconstructing a packet");else throw new Error("Unknown type: "+e)}decodeString(e){let t=0,i={type:Number(e.charAt(0))};if(p[i.type]===void 0)throw new Error("unknown packet type "+i.type);if(i.type===p.BINARY_EVENT||i.type===p.BINARY_ACK){let n=t+1;for(;e.charAt(++t)!=="-"&&t!=e.length;);let o=e.substring(n,t);if(o!=Number(o)||e.charAt(t)!=="-")throw new Error("Illegal attachments");i.attachments=Number(o)}if(e.charAt(t+1)==="/"){let n=t+1;for(;++t&&!(e.charAt(t)===","||t===e.length););i.nsp=e.substring(n,t)}else i.nsp="/";let r=e.charAt(t+1);if(r!==""&&Number(r)==r){let n=t+1;for(;++t;){let o=e.charAt(t);if(o==null||Number(o)!=o){--t;break}if(t===e.length)break}i.id=Number(e.substring(n,t+1))}if(e.charAt(++t)){let n=this.tryParse(e.substr(t));if(s.isPayloadValid(i.type,n))i.data=n;else throw new Error("invalid payload")}return i}tryParse(e){try{return JSON.parse(e,this.reviver)}catch{return!1}}static isPayloadValid(e,t){switch(e){case p.CONNECT:return yt(t);case p.DISCONNECT:return t===void 0;case p.CONNECT_ERROR:return typeof t=="string"||yt(t);case p.EVENT:case p.BINARY_EVENT:return Array.isArray(t)&&(typeof t[0]=="number"||typeof t[0]=="string"&&Gt.indexOf(t[0])===-1);case p.ACK:case p.BINARY_ACK:return Array.isArray(t)}}destroy(){this.reconstructor&&(this.reconstructor.finishedReconstruction(),this.reconstructor=null)}},Ue=class{constructor(e){this.packet=e,this.buffers=[],this.reconPack=e}takeBinaryData(e){if(this.buffers.push(e),this.buffers.length===this.reconPack.attachments){let t=gt(this.reconPack,this.buffers);return this.finishedReconstruction(),t}return null}finishedReconstruction(){this.reconPack=null,this.buffers=[]}};function S(s,e,t){return s.on(e,t),function(){s.off(e,t)}}var Xt=Object.freeze({connect:1,connect_error:1,disconnect:1,disconnecting:1,newListener:1,removeListener:1}),W=class extends b{constructor(e,t,i){super(),this.connected=!1,this.recovered=!1,this.receiveBuffer=[],this.sendBuffer=[],this._queue=[],this._queueSeq=0,this.ids=0,this.acks={},this.flags={},this.io=e,this.nsp=t,i&&i.auth&&(this.auth=i.auth),this._opts=Object.assign({},i),this.io._autoConnect&&this.open()}get disconnected(){return!this.connected}subEvents(){if(this.subs)return;let e=this.io;this.subs=[S(e,"open",this.onopen.bind(this)),S(e,"packet",this.onpacket.bind(this)),S(e,"error",this.onerror.bind(this)),S(e,"close",this.onclose.bind(this))]}get active(){return!!this.subs}connect(){return this.connected?this:(this.subEvents(),this.io._reconnecting||this.io.open(),this.io._readyState==="open"&&this.onopen(),this)}open(){return this.connect()}send(...e){return e.unshift("message"),this.emit.apply(this,e),this}emit(e,...t){if(Xt.hasOwnProperty(e))throw new Error('"'+e.toString()+'" is a reserved event name');if(t.unshift(e),this._opts.retries&&!this.flags.fromQueue&&!this.flags.volatile)return this._addToQueue(t),this;let i={type:p.EVENT,data:t};if(i.options={},i.options.compress=this.flags.compress!==!1,typeof t[t.length-1]=="function"){let o=this.ids++,c=t.pop();this._registerAckCallback(o,c),i.id=o}let r=this.io.engine&&this.io.engine.transport&&this.io.engine.transport.writable;return this.flags.volatile&&(!r||!this.connected)||(this.connected?(this.notifyOutgoingListeners(i),this.packet(i)):this.sendBuffer.push(i)),this.flags={},this}_registerAckCallback(e,t){var i;let r=(i=this.flags.timeout)!==null&&i!==void 0?i:this._opts.ackTimeout;if(r===void 0){this.acks[e]=t;return}let n=this.io.setTimeoutFn(()=>{delete this.acks[e];for(let o=0;o<this.sendBuffer.length;o++)this.sendBuffer[o].id===e&&this.sendBuffer.splice(o,1);t.call(this,new Error("operation has timed out"))},r);this.acks[e]=(...o)=>{this.io.clearTimeoutFn(n),t.apply(this,[null,...o])}}emitWithAck(e,...t){let i=this.flags.timeout!==void 0||this._opts.ackTimeout!==void 0;return new Promise((r,n)=>{t.push((o,c)=>i?o?n(o):r(c):r(o)),this.emit(e,...t)})}_addToQueue(e){let t;typeof e[e.length-1]=="function"&&(t=e.pop());let i={id:this._queueSeq++,tryCount:0,pending:!1,args:e,flags:Object.assign({fromQueue:!0},this.flags)};e.push((r,...n)=>i!==this._queue[0]?void 0:(r!==null?i.tryCount>this._opts.retries&&(this._queue.shift(),t&&t(r)):(this._queue.shift(),t&&t(null,...n)),i.pending=!1,this._drainQueue())),this._queue.push(i),this._drainQueue()}_drainQueue(e=!1){if(!this.connected||this._queue.length===0)return;let t=this._queue[0];t.pending&&!e||(t.pending=!0,t.tryCount++,this.flags=t.flags,this.emit.apply(this,t.args))}packet(e){e.nsp=this.nsp,this.io._packet(e)}onopen(){typeof this.auth=="function"?this.auth(e=>{this._sendConnectPacket(e)}):this._sendConnectPacket(this.auth)}_sendConnectPacket(e){this.packet({type:p.CONNECT,data:this._pid?Object.assign({pid:this._pid,offset:this._lastOffset},e):e})}onerror(e){this.connected||this.emitReserved("connect_error",e)}onclose(e,t){this.connected=!1,delete this.id,this.emitReserved("disconnect",e,t)}onpacket(e){if(e.nsp===this.nsp)switch(e.type){case p.CONNECT:e.data&&e.data.sid?this.onconnect(e.data.sid,e.data.pid):this.emitReserved("connect_error",new Error("It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)"));break;case p.EVENT:case p.BINARY_EVENT:this.onevent(e);break;case p.ACK:case p.BINARY_ACK:this.onack(e);break;case p.DISCONNECT:this.ondisconnect();break;case p.CONNECT_ERROR:this.destroy();let i=new Error(e.data.message);i.data=e.data.data,this.emitReserved("connect_error",i);break}}onevent(e){let t=e.data||[];e.id!=null&&t.push(this.ack(e.id)),this.connected?this.emitEvent(t):this.receiveBuffer.push(Object.freeze(t))}emitEvent(e){if(this._anyListeners&&this._anyListeners.length){let t=this._anyListeners.slice();for(let i of t)i.apply(this,e)}super.emit.apply(this,e),this._pid&&e.length&&typeof e[e.length-1]=="string"&&(this._lastOffset=e[e.length-1])}ack(e){let t=this,i=!1;return function(...r){i||(i=!0,t.packet({type:p.ACK,id:e,data:r}))}}onack(e){let t=this.acks[e.id];typeof t=="function"&&(t.apply(this,e.data),delete this.acks[e.id])}onconnect(e,t){this.id=e,this.recovered=t&&this._pid===t,this._pid=t,this.connected=!0,this.emitBuffered(),this.emitReserved("connect"),this._drainQueue(!0)}emitBuffered(){this.receiveBuffer.forEach(e=>this.emitEvent(e)),this.receiveBuffer=[],this.sendBuffer.forEach(e=>{this.notifyOutgoingListeners(e),this.packet(e)}),this.sendBuffer=[]}ondisconnect(){this.destroy(),this.onclose("io server disconnect")}destroy(){this.subs&&(this.subs.forEach(e=>e()),this.subs=void 0),this.io._destroy(this)}disconnect(){return this.connected&&this.packet({type:p.DISCONNECT}),this.destroy(),this.connected&&this.onclose("io client disconnect"),this}close(){return this.disconnect()}compress(e){return this.flags.compress=e,this}get volatile(){return this.flags.volatile=!0,this}timeout(e){return this.flags.timeout=e,this}onAny(e){return this._anyListeners=this._anyListeners||[],this._anyListeners.push(e),this}prependAny(e){return this._anyListeners=this._anyListeners||[],this._anyListeners.unshift(e),this}offAny(e){if(!this._anyListeners)return this;if(e){let t=this._anyListeners;for(let i=0;i<t.length;i++)if(e===t[i])return t.splice(i,1),this}else this._anyListeners=[];return this}listenersAny(){return this._anyListeners||[]}onAnyOutgoing(e){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.push(e),this}prependAnyOutgoing(e){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.unshift(e),this}offAnyOutgoing(e){if(!this._anyOutgoingListeners)return this;if(e){let t=this._anyOutgoingListeners;for(let i=0;i<t.length;i++)if(e===t[i])return t.splice(i,1),this}else this._anyOutgoingListeners=[];return this}listenersAnyOutgoing(){return this._anyOutgoingListeners||[]}notifyOutgoingListeners(e){if(this._anyOutgoingListeners&&this._anyOutgoingListeners.length){let t=this._anyOutgoingListeners.slice();for(let i of t)i.apply(this,e.data)}}};function P(s){s=s||{},this.ms=s.min||100,this.max=s.max||1e4,this.factor=s.factor||2,this.jitter=s.jitter>0&&s.jitter<=1?s.jitter:0,this.attempts=0}P.prototype.duration=function(){var s=this.ms*Math.pow(this.factor,this.attempts++);if(this.jitter){var e=Math.random(),t=Math.floor(e*this.jitter*s);s=Math.floor(e*10)&1?s+t:s-t}return Math.min(s,this.max)|0};P.prototype.reset=function(){this.attempts=0};P.prototype.setMin=function(s){this.ms=s};P.prototype.setMax=function(s){this.max=s};P.prototype.setJitter=function(s){this.jitter=s};var K=class extends b{constructor(e,t){var i;super(),this.nsps={},this.subs=[],e&&typeof e=="object"&&(t=e,e=void 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MutationObserver(function(){this.takeRecords(),i.saveHtmlCache()})),e===!0||e===void 0?(this._htmlObserver.observe(t,{attributes:!0,childList:!0,subtree:!0,characterData:!0}),a("trace","uibuilder.module.js:watchDom","Started Watching and saving DOM changes")()):(this._htmlObserver.disconnect(),a("trace","uibuilder.module.js:watchDom","Stopped Watching and saving DOM changes")())}_ctrlMsgFromServer(e){if(e===null)e={};else if(typeof e!="object"){let t={};t["uibuilderCtrl:"+this._ioChannels.control]=e,e=t}switch(this._checkTimestamp(e),this.set("ctrlMsg",e),this.set("msgsCtrlReceived",++this.msgsCtrlReceived),a("trace","Uib:ioSetup:_ctrlMsgFromServer","Channel '".concat(this._ioChannels.control,"'. 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Sending msg #").concat(r),e)(),this._socket.emit(t,e)}_stdMsgFromServer(e){e=Me(e,"payload"),!(e._uib&&!this._forThis(e._uib))&&(e._ui&&!this._forThis(e._ui)||(this._checkTimestamp(e),this.set("msgsReceived",++this.msgsReceived),this._msgRcvdEvents(e),"_ui"in e&&!("payload"in e)||this.set("msg",e),a("info","Uib:ioSetup:stdMsgFromServer","Channel '".concat(this._ioChannels.server,"'. 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Make sure that you wrap the call in a function: `doEvent: function (event) { uibuilder.eventSend(event) },`")();return}if(!e&&!event){a("warn","Uib:eventSend","Neither the domevent nor the hidden event properties are set. You probably called this function directly rather than applying to an on click event.")();return}if((!e||!e.constructor)&&(e=event),!e.constructor.name.endsWith("Event")||!e.currentTarget){a("warn","Uib:eventSend","ARGUMENT NOT A DOM EVENT - use data attributes not function arguments to pass data. Arg Type: ".concat(e.constructor.name),e)();return}e.preventDefault();let i=e.currentTarget,r={};Object.keys(i).forEach(g=>{g.startsWith("_")||(r[g]=i[g])});let n=["class","id","name"],o;try{o=Object.assign({},...Array.from(i.attributes,({name:g,value:_e})=>{if(!n.includes(g))return{[g]:_e}}))}catch{}let c,h=[];i.form&&(c={},c.valid=i.form.checkValidity(),Object.values(i.form).forEach((g,_e)=>{let V=g.id!==""?g.id:g.name!==""?g.name:"".concat(_e,"-").concat(g.type);if(V!==""&&g.type){if("checked"in g&&g.value==="on"&&(g.value=g.checked.toString()),h.push({key:V,val:g.value}),c[V]={id:g.id,name:g.name,value:g.value,valid:g.checkValidity(),type:g.type},c[V].valid===!1){let w=g.validity;c[V].validity={badInput:w.badInput===!0?w.badInput:void 0,customError:w.customError===!0?w.customError:void 0,patternMismatch:w.patternMismatch===!0?w.patternMismatch:void 0,rangeOverflow:w.rangeOverflow===!0?w.rangeOverflow:void 0,rangeUnderflow:w.rangeUnderflow===!0?w.rangeUnderflow:void 0,stepMismatch:w.stepMismatch===!0?w.stepMismatch:void 0,tooLong:w.tooLong===!0?w.tooLong:void 0,tooShort:w.tooShort===!0?w.tooShort:void 0,typeMismatch:w.typeMismatch===!0?w.typeMismatch:void 0,valueMissing:w.valueMissing===!0?w.valueMissing:void 0}}g.dataset&&(c[V].data=g.dataset)}}));let u;try{u=Array.from(i.classList)}catch{}let y={...i.dataset},x;Object.prototype.toString.call(i)==="[object Notification]"&&(y="notification-".concat(i.userAction),x={actions:i.actions,badge:i.badge,body:i.body,data:i.data,dir:i.dir,icon:i.icon,image:i.image,lang:i.lang,renotify:i.renotify,requireInteraction:i.requireInteraction,silent:i.silent,tag:i.tag,timestamp:i.timestamp,title:i.title,vibrate:i.vibrate});let k={payload:y,_ui:{type:"eventSend",id:i.id!==""?i.id:void 0,name:i.name!==""?i.name:void 0,slotText:i.textContent?i.textContent.substring(0,255):void 0,form:c,props:r,attribs:o,classes:u,notification:x,event:e.type,altKey:e.altKey,ctrlKey:e.ctrlKey,shiftKey:e.shiftKey,metaKey:e.metaKey,pointerType:e.pointerType,nodeName:i.nodeName,clientId:this.clientId,pageName:this.pageName,tabId:this.tabId}};h.length>0&&h.forEach(g=>{k.payload[g.key]=g.val}),e.type==="change"&&(k._ui.newValue=k.payload.value="checked"in i?i.checked:e.target.value),a("trace","Uib:eventSend","Sending msg to Node-RED",k)(),i.dataset&&i.dataset.length===0&&a("warn","Uib:eventSend","No payload in msg. data-* attributes should be used.")(),this._send(k,this._ioChannels.client,t)}send(e,t=""){this._send(e,this._ioChannels.client,t)}sendCtrl(e){this._send(e,this._ioChannels.control)}_getIOnamespace(){let e;if(e=this.cookies["uibuilder-namespace"],e===void 0||e===""){let t=window.location.pathname.split("/").filter(function(i){return i.trim()!==""});t.length>0&&t[t.length-1].endsWith(".html")&&t.pop(),e=t.pop(),a("trace","uibuilder.module.js:getIOnamespace","Socket.IO namespace found via url path: ".concat(e))()}else a("trace","uibuilder.module.js:getIOnamespace","Socket.IO namespace found via cookie: ".concat(e))();return this.url=e,e="/"+e,a("trace","uibuilder.module.js:getIOnamespace","Final Socket.IO namespace: ".concat(e))(),e}_checkConnect(e,t,i=1){if(navigator.onLine!==!1)return e||(e=this.retryMs),t||(t=this.retryFactor),a("trace","Uib:checkConnect","Checking connection. Connected: ".concat(this._socket.connected,". Timer: ").concat(d(this,_),". Depth: ").concat(i,". Delay: ").concat(e,". Factor: ").concat(t),this._socket)(),this._socket.connected===!0?(d(this,_)&&(window.clearTimeout(d(this,_)),A(this,_,null)),this.set("ioConnected",!0),this.set("socketError",null),!0):(this.set("ioConnected",!1),d(this,_)&&window.clearTimeout(d(this,_)),A(this,_,window.setTimeout(()=>{a("warn","Uib:checkConnect:setTimeout","Socket.IO reconnection attempt. Current delay: ".concat(e,". Depth: ").concat(i))(),this._socket.close(),this._socket.connect(),A(this,_,null),this._checkConnect(e*t,t,i++)},e)),!1)}_onConnect(){a("info","Uib:ioSetup","\u2705 SOCKET CONNECTED. Connection count: ".concat(this.connectedNum,", Is a Recovery?: ").concat(this._socket.recovered,". \nNamespace: ").concat(this.ioNamespace))(),this._dispatchCustomEvent("uibuilder:socket:connected",{numConnections:this.connectedNum,isRecovery:this._socket.recovered}),this._checkConnect()}_onDisconnect(e){a("info","Uib:ioSetup:socket-disconnect","\u26D4 Socket Disconnected. Reason: ".concat(e))(),this._dispatchCustomEvent("uibuilder:socket:disconnected",e),this._checkConnect()}_ioSetup(){return J===void 0?(a("error","Uib:ioSetup","Socket.IO client not loaded, Node-RED comms will not work")(),!1):(this._socket&&(a("trace","Uib:ioSetup","Removing listeners in preparation for redoing Socket.IO connections")(),d(this,_)&&(window.clearTimeout(d(this,_)),A(this,_,null)),this._socket.close(),this._socket.offAny(),this._socket=void 0,this.set("ioConnected",!1)),this.socketOptions.path=this.ioPath,a("trace","Uib:ioSetup","About to create IO object. Transports: [".concat(this.socketOptions.transports.join(", "),"]"))(),this._socket=J(this.ioNamespace,this.socketOptions),this._socket.on("connect",this._onConnect.bind(this)),this._socket.on(this._ioChannels.server,this._stdMsgFromServer.bind(this)),this._socket.on(this._ioChannels.control,this._ctrlMsgFromServer.bind(this)),this._socket.on("disconnect",this._onDisconnect.bind(this)),this._socket.on("connect_error",e=>{navigator.onLine!==!1&&(a("error","Uib:ioSetup:connect_error","\u274C Socket.IO Connect Error. Reason: ".concat(e.message),e)(),this.set("ioConnected",!1),this.set("socketError",e),this._dispatchCustomEvent("uibuilder:socket:disconnected",e))}),this._socket.on("error",e=>{a("error","Uib:ioSetup:error","\u274C Socket.IO Error. Reason: ".concat(e.message),e)(),this.set("ioConnected",!1),this.set("socketError",e),this._dispatchCustomEvent("uibuilder:socket:disconnected",e)}),this._checkConnect(),!0)}start(e){a("trace","Uib:start","Starting")(),d(this,oe)&&this.cancelChange("msg",d(this,oe)),this.started===!0&&a("info","Uib:start","Start function already called. Resetting Socket.IO and msg handler.")(),a("log","Uib:start","Cookies: ",this.cookies,"\nClient ID: ".concat(this.clientId))(),a("trace","Uib:start","ioNamespace: ",this.ioNamespace,"\nioPath: ".concat(this.ioPath))(),e&&(e.ioNamespace!==void 0&&e.ioNamespace!==null&&e.ioNamespace!==""&&this.set("ioNamespace",e.ioNamespace),e.ioPath!==void 0&&e.ioPath!==null&&e.ioPath!==""&&this.set("ioPath",e.ioPath)),document.styleSheets.length>=1||document.styleSheets.length===1&&document.styleSheets[0].cssRules.length===0?a("info","Uib:start","Styles already loaded so not loading uibuilder default styles.")():e&&e.loadStylesheet===!1?a("info","Uib:start","No styles loaded & options.loadStylesheet === false.")():(a("info","Uib:start","No styles loaded, loading uibuilder default styles.")(),this.loadStyleSrc("".concat(this.httpNodeRoot,"/uibuilder/uib-brand.min.css")));let[t]=performance.getEntriesByType("navigation");if(this.set("lastNavType",t.type),this.set("started",this._ioSetup()),this.started===!0?a("trace","Uib:start","Start completed. Socket.IO client library loaded.")():a("error","Uib:start","Start completed. ERROR: Socket.IO client library NOT LOADED.")(),this._watchHashChanges(),window.Vue){this.set("isVue",!0);try{this.set("vueVersion",window.Vue.version)}catch{}a("trace","Uib:start","VueJS is loaded. Version: ".concat(this.vueVersion))()}else a("trace","Uib:start","VueJS is not loaded.")();window.DOMPurify?(this.set("purify",!0),a("trace","Uib:start","DOMPurify is loaded.")()):a("trace","Uib:start","DOMPurify is not loaded.")(),window.markdownit?(this.set("markdown",!0),a("trace","Uib:start","Markdown-IT is loaded.")()):a("trace","Uib:start","Markdown-IT is not loaded.")(),this.onChange("msg",i=>{if(d(this,z)===!0){let r=document.getElementById("uib_last_msg");r&&(r.innerHTML=this.syntaxHighlight(i))}}),this._dispatchCustomEvent("uibuilder:startComplete")}},q=new WeakMap,O=new WeakMap,$=new WeakMap,_=new WeakMap,oe=new WeakMap,z=new WeakMap,Y=new WeakMap,H=new WeakMap,ve=new WeakMap,ae=new WeakMap,ce=new WeakMap,M=new WeakMap,l(E,"_meta",{version:wt,type:"module",displayName:"uibuilder"}),E),ke=new ei;window.uibuilder?a("error","uibuilder.module.js","`uibuilder` already assigned to window. Have you tried to load it more than once?"):window.uibuilder=ke;window.uib?a("warn","uibuilder.module.js","`uib` shortcut already assigned to window."):window.uib=ke;window.$?a("warn","uibuilder.module.js","Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` or `uib.$` instead."):window.$=window.uibuilder.$;window.$$?a("warn","uibuilder.module.js","Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` or `uib.$$` instead."):window.$$=window.uibuilder.$$;window.$ui?a("warn","uibuilder.module.js","Cannot allocate the global `$ui`, it is already in use. Use `uibuilder.$ui` or `uib.$ui` instead."):window.$ui=window.uibuilder.$ui;var Js=ke;ke.start();customElements.define("uib-var",G);export{ei as Uib,Js as default,ke as uibuilder};
 //# sourceMappingURL=uibuilder.esm.min.js.map
diff --git a/front-end/uibuilder.esm.min.js.map b/front-end/uibuilder.esm.min.js.map
index 44519012..e46bd7d8 100644
--- a/front-end/uibuilder.esm.min.js.map
+++ b/front-end/uibuilder.esm.min.js.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
   "sources": ["src/front-end-module/ui.js", "src/front-end-module/uibuilder.module.js", "src/components/uib-var.js", "node_modules/engine.io-parser/build/esm/commons.js", "node_modules/engine.io-parser/build/esm/encodePacket.browser.js", "node_modules/engine.io-parser/build/esm/contrib/base64-arraybuffer.js", "node_modules/engine.io-parser/build/esm/decodePacket.browser.js", "node_modules/engine.io-parser/build/esm/index.js", "node_modules/@socket.io/component-emitter/index.mjs", "node_modules/engine.io-client/build/esm/globalThis.browser.js", "node_modules/engine.io-client/build/esm/util.js", "node_modules/engine.io-client/build/esm/contrib/parseqs.js", "node_modules/engine.io-client/build/esm/transport.js", "node_modules/engine.io-client/build/esm/contrib/yeast.js", "node_modules/engine.io-client/build/esm/contrib/has-cors.js", "node_modules/engine.io-client/build/esm/transports/xmlhttprequest.browser.js", "node_modules/engine.io-client/build/esm/transports/polling.js", "node_modules/engine.io-client/build/esm/transports/websocket-constructor.browser.js", "node_modules/engine.io-client/build/esm/transports/websocket.js", "node_modules/engine.io-client/build/esm/transports/webtransport.js", "node_modules/engine.io-client/build/esm/transports/index.js", "node_modules/engine.io-client/build/esm/contrib/parseuri.js", "node_modules/engine.io-client/build/esm/socket.js", "node_modules/engine.io-client/build/esm/index.js", "node_modules/socket.io-client/build/esm/url.js", "node_modules/socket.io-parser/build/esm/index.js", "node_modules/socket.io-parser/build/esm/is-binary.js", "node_modules/socket.io-parser/build/esm/binary.js", "node_modules/socket.io-client/build/esm/on.js", "node_modules/socket.io-client/build/esm/socket.js", "node_modules/socket.io-client/build/esm/contrib/backo2.js", "node_modules/socket.io-client/build/esm/manager.js", "node_modules/socket.io-client/build/esm/index.js"],
-  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\n// Namespaces - See https://stackoverflow.com/a/52572048/1309986\n// const NAMESPACES = {\n//     svg: 'http://www.w3.org/2000/svg',\n//     html: 'http://www.w3.org/1999/xhtml',\n//     xml: 'http://www.w3.org/XML/1998/namespace',\n//     xlink: 'http://www.w3.org/1999/xlink',\n//     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n// }\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    //#region ---- Internal Methods ----\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                if (attrib === 'class' && Array.isArray(comp.attributes[attrib])) comp.attributes[attrib].join(' ')\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    /** External alias for _uiComposeComponent\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n    } // --- end of _uiManager ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    //#endregion ---- -------- ----\n    //#region ---- External Methods ----\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += msg.payload\n        if (ui.content) content += ui.content\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        this._uiManager(msg)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName !== null && propName !== '') {\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    // Nightmare of different object types in a DOM Element!\n                    if (prop.constructor.name === 'NamedNodeMap') { // Attributes\n                        const p = {}\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                        out.push(p)\n                    } else if (!prop.constructor.name.toLowerCase().includes('map')) { // Ordinary properties\n                        out.push({\n                            [propName]: prop\n                        })\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                        out.push(p)\n                    }\n                }\n\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    //#endregion ---- -------- ----\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n", "/* This is the Front-End JavaScript for uibuilder  in HTML Module form\n  It provides a number of global objects that can be used in your own javascript.\n  see the docs folder `./docs/uibuilder.module.md` for details of how to use this fully.\n\n  Please use the default index.js file for your own code and leave this as-is.\n  See Uib._meta for client version string\n\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n//#region --- Type Defs --- //\n/**\n * A string containing HTML markup\n * @typedef {string} html\n */\n//#endregion --- Type Defs --- //\n\n//#region --- We need the Socket.IO & ui libraries & the uib-var component  --- //\n// @ts-ignore - Note: Only works when using esbuild to bundle\nimport Ui from './ui'\nimport UibVar from '../components/uib-var'\nimport io from 'socket.io-client'\n\n// TODO - Maybe - check if already loaded as window['io']?\n// TODO - Maybe - Should this be moved to inside the class - would know the httpRoot then so less need to guess?\n// TODO           Or, could pull the cookie processing out of the class\n// const ioLocns = [ // Likely locations of the Socket.IO client library\n//     // Where it should normally be\n//     '../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and haven't changed httpNodeRoot\n//     '/uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and have changed httpNodeRoot\n//     '../../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Direct from the Internet - last ditch attempt\n//     'https://cdn.jsdelivr.net/npm/socket.io-client/+esm',\n// ]\n\n// let io\n// for (const locn of ioLocns) {\n//     try {\n//         ({ io } = await import(locn))\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library found at '${locn}'`)()\n//     } catch (e) {\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library not found at '${locn}'`)()\n//     }\n//     if (io) break\n// }\n// if (!io) log('error', 'uibuilder.module.js', 'Socket.IO client failed to load')()\n//#endregion -------- -------- -------- //\n\nconst version = '6.8.0-src'\n\n// TODO Add option to allow log events to be sent back to Node-RED as uib ctrl msgs\n//#region --- Module-level utility functions --- //\n\n// @ts-ignore Detect whether the loaded library is minified or not\nconst isMinified = !(/param/).test(function (param) { }) // eslint-disable-line no-unused-vars\n\n//#region --- print/console - debugging output functions --- //\n\n/** Default log level - Error & Warn */\nlet logLevel = isMinified ? 0 : 1  // When using minified lib, assume production and only log errors otherwise also log warn\n// function changeLogLevel(level) {\n//     logLevel = level\n//     console.trace = logLevel < 4 ? function(){} : console.trace\n//     console.debug = logLevel < 2 ? function(){} : console.debug\n//     if ( logLevel < 1 ) {\n//         console.log = console.group = console.groupEnd =  function(){}\n//     }\n// }\n\n// Experimental\nconst LOG_STYLES = {\n    // 0\n    error: {\n        css: 'background: red; color: black;',\n        txtCss: 'color: red; ',\n        pre: '\u26D4 ',\n        console: 'error',  // or trace\n    },\n    // 1\n    warn: {\n        css: 'background: darkorange; color: black;',\n        txtCss: 'color: darkorange; ',\n        pre: '\u26A0 ',\n        console: 'warn',\n    },\n    // 2\n    info: {\n        css: 'background: aqua; color: black;',\n        txtCss: 'color: aqua;',\n        pre: '\u2757 ',\n        console: 'info',\n    },\n    // 3\n    log: {\n        css: 'background: grey; color: yellow;',\n        txtCss: 'color: grey;',\n        pre: '',\n        console: 'log',\n    },\n    // 4\n    debug: {\n        css: 'background: chartreuse; color: black;',\n        txtCss: 'color: chartreuse;',\n        pre: '',\n        console: 'debug',\n    },\n    // 5\n    trace: {\n        css: 'background: indigo; color: yellow;',\n        txtCss: 'color: hotpink;',\n        pre: '',\n        console: 'log',\n    },\n\n    names: ['error', 'warn', 'info', 'log', 'debug', 'trace'],\n    reset: 'color: inherit;',\n    head: 'font-weight:bold; font-style:italic;',\n    level: 'font-weight:bold; border-radius: 3px; padding: 2px 5px; display:inline-block;',\n}\n/** Custom logging. e.g. log(2, 'here:there', 'jiminy', {fred:'jim'})()\n * @returns {Function} Log function @example log(2, 'here:there', 'jiminy', {fred:'jim'})()\n */\nfunction log() {\n    // Get the args\n    const args = Array.prototype.slice.call(arguments)\n\n    // 1st arg is the log level/type\n    let level = args.shift()\n    let strLevel\n    switch (level) {\n        case 'trace':\n        case 5: {\n            if (logLevel < 5) break\n            level = 5 // make sure level is numeric\n            strLevel = 'trace'\n            break\n        }\n\n        case 'debug':\n        case 4: {\n            if (logLevel < 4) break\n            level = 4\n            strLevel = 'debug'\n            break\n        }\n\n        case 'log':\n        case 3: {\n            if (logLevel < 3) break\n            level = 3\n            strLevel = 'log'\n            break\n        }\n\n        case 'info':\n        case '':\n        case 2: {\n            if (logLevel < 2) break\n            level = 2\n            strLevel = 'info'\n            break\n        }\n\n        case 'warn':\n        case 1: {\n            if (logLevel < 1) break\n            level = 1\n            strLevel = 'warn'\n            break\n        }\n\n        case 'error':\n        case 'err':\n        case 0: {\n            if (logLevel < 0) break\n            level = 0\n            strLevel = 'error'\n            break\n        }\n\n        default: {\n            level = -1\n            break\n        }\n\n    }\n\n    // If set to something unknown, no log output\n    if (strLevel === undefined) return function () { }\n\n    // 2nd arg is a heading that will be colour highlighted\n    const head = args.shift()\n\n    // Bind back to console.log (could use console[strLevel] but some levels ignore some formatting, use console.xxx directly or dedicated fn)\n    return Function.prototype.bind.call(\n        console[LOG_STYLES[strLevel].console],\n        console,\n        `%c${LOG_STYLES[strLevel].pre}${strLevel}%c [${head}]`, `${LOG_STYLES.level} ${LOG_STYLES[strLevel].css}`, `${LOG_STYLES.head} ${LOG_STYLES[strLevel].txtCss}`,\n        ...args\n    )\n}\n//#endregion\n\n/** A hack to dynamically load a remote module and wait until it is loaded\n * @param {string} url The URL of the module to load\n * @returns {object|null} Either the result object or null (if the load fails)\n */\n// function loadModule(url) { // eslint-disable-line no-unused-vars\n//     let done\n\n//     import(url)\n//         .then(res => {\n//             log('debug', '>> then >>', res)()\n//             done = res\n//         })\n//         .catch(err => {\n//             console.error(`[uibuilder:loadModule] Could not load module ${url}`, err)\n//             done = null\n//         })\n\n//     //  eslint-disable-next-line no-empty\n//     while (!done) { } // eslint-disable-line no-unmodified-loop-condition\n\n//     return done\n// }\n\n/** Makes a null or non-object into an object\n * If not null, moves \"thing\" to {payload:thing}\n *\n * @param {*} thing Thing to check\n * @param {string} [property='payload'] property that \"thing\" is moved to if not null and not an object\n * @returns {!object} _\n */\nfunction makeMeAnObject(thing, property) {\n    if (!property) property = 'payload'\n    if (typeof property !== 'string') {\n        log('warn', 'uibuilderfe:makeMeAnObject', `WARNING: property parameter must be a string and not: ${typeof property}`)()\n        property = 'payload'\n    }\n    let out = {}\n    if ( thing !== null && thing.constructor.name === 'Object' ) {\n        out = thing\n    } else if (thing !== null) {\n        out[property] = thing\n    }\n    return out\n} // --- End of make me an object --- //\n\n/** Joins all arguments as a URL string\n * see http://stackoverflow.com/a/28592528/3016654\n * since v1.0.10, fixed potential double // issue\n * arguments {string} URL fragments\n * @returns {string} _\n */\nfunction urlJoin() {\n    const paths = Array.prototype.slice.call(arguments)\n    const url = '/' + paths.map(function (e) {\n        return e.replace(/^\\/|\\/$/g, '')\n    })\n        .filter(function (e) {\n            return e\n        })\n        .join('/')\n    return url.replace('//', '/')\n} // ---- End of urlJoin ---- //\n\n/** Convert JSON to Syntax Highlighted HTML\n * @param {object} json A JSON/JavaScript Object\n * @returns {html} Object reformatted as highlighted HTML\n */\nfunction syntaxHighlight(json) {\n    if (json === undefined) {\n        json = '<span class=\"undefined\">undefined</span>'\n    } else {\n        try {\n            json = JSON.stringify(json, undefined, 4)\n            // json = json.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;') // eslint-disable-line newline-per-chained-call\n            json = json.replace(/(\"(\\\\u[a-zA-Z0-9]{4}|\\\\[^u]|[^\\\\\"])*\"(\\s*:)?|\\b(true|false|null)\\b|-?\\d+(?:\\.\\d*)?(?:[eE][+-]?\\d+)?)/g, function (match) { // eslint-disable-line prefer-named-capture-group\n                let cls = 'number'\n                if ((/^\"/).test(match)) {\n                    if ((/:$/).test(match)) {\n                        cls = 'key'\n                    } else {\n                        cls = 'string'\n                    }\n                } else if ((/true|false/).test(match)) {\n                    cls = 'boolean'\n                } else if ((/null/).test(match)) {\n                    cls = 'null'\n                }\n                return `<span class=\"${cls}\">${match}</span>`\n            })\n        } catch (e) {\n            json = `Syntax Highlight ERROR: ${e.message}`\n        }\n    }\n    return json\n}\n\n/** msg._ui handling functions */\nconst _ui = new Ui(window, log, syntaxHighlight)\n\n//#endregion --- Module-level utility functions --- //\n\n/** Define and export the Uib class - note that an instance of the class is also exported in the wrap-up\n * @typicalname uibuilder\n */\nexport const Uib = class Uib {\n\n    //#region --- Static variables ---\n    static _meta = {\n        version: version,\n        type: 'module',\n        displayName: 'uibuilder',\n    }\n    //#endregion ---- ---- ---- ----\n\n    //#region private class vars\n\n    // How many times has the loaded instance connected to Socket.IO (detect if not a new load?)\n    connectedNum = 0\n    // event listener callbacks by property name\n    // #events = {}\n    // Socket.IO channel names\n    _ioChannels = { control: 'uiBuilderControl', client: 'uiBuilderClient', server: 'uiBuilder' }\n    /** setInterval holder for pings @type {function|undefined} */\n    #pingInterval\n    // onChange event callbacks\n    #propChangeCallbacks = {}\n    // onTopic event callbacks\n    #msgRecvdByTopicCallbacks = {}\n    // Is Vue available?\n    isVue = false\n    // What version? Set in startup if Vue is loaded. Won't always work\n    vueVersion = undefined\n    /** setInterval id holder for Socket.IO checkConnect\n     * @type {number|null}\n     */\n    #timerid = null\n    // Holds the reference ID for the internal msg change event handler so that it can be cancelled\n    #MsgHandler\n    // Placeholder for io.socket - can't make a # var until # fns allowed in all browsers\n    _socket\n    // Placeholder for an observer that watches the whole DOM for changes - can't make a # var until # fns allowed in all browsers\n    _htmlObserver\n    // Has showMsg been turned on?\n    #isShowMsg = false\n    // Has showStatus been turned on?\n    #isShowStatus = false\n    // If true, URL hash changes send msg back to node-red. Controlled by watchUrlHash()\n    #sendUrlHash = false\n    // Externally accessible command functions (NB: Case must match) - remember to update _uibCommand for new commands\n    #extCommands = [\n        'elementExists', 'get', 'getManagedVarList', 'getWatchedVars', 'htmlSend', 'include',\n        'navigate', 'scrollTo', 'set', 'showMsg', 'showStatus', 'uiGet', 'uiWatch', 'watchUrlHash',\n    ]\n\n    /** @type {{[key: string]: string}} Managed uibuilder variables */\n    #managedVars = {}\n\n    // What status variables to show via showStatus()\n    #showStatus = {\n        online: { 'var': 'online', 'label': 'Online?', 'description': 'Is the browser online?', },\n        ioConnected: { 'var': 'ioConnected', 'label': 'Socket.IO connected?', 'description': 'Is Socket.IO connected?', },\n        connectedNum: { 'var': 'connectedNum', 'label': '# reconnections', 'description': 'How many times has Socket.IO had to reconnect since last page load?', },\n\n        clientId: { 'var': 'clientId', 'label': 'Client ID', 'description': 'Static client unique id set in Node-RED. Only changes when browser is restarted.', },\n        tabId: { 'var': 'tabId', 'label': 'Browser tab ID', 'description': 'Static unique id for the browser\\'s current tab', },\n        cookies: { 'var': 'cookies', 'label': 'Cookies', 'description': 'Cookies set in Node-RED', },\n        httpNodeRoot: { 'var': 'httpNodeRoot', 'label': 'httpNodeRoot', 'description': 'From Node-RED\\' settings.js, affects URL\\'s. May be wrong for pages in sub-folders', },\n        pageName: { 'var': 'pageName', 'label': 'Page name', 'description': 'Actual name of this page', },\n\n        ioNamespace: { 'var': 'ioNamespace', 'label': 'SIO namespace', 'description': 'Socket.IO namespace - unique to each uibuilder node instance', },\n        // ioPath: { 'var': 'ioPath', 'label': 'SIO path', 'description': '', }, // no longer needed in the modern client\n        socketError: { 'var': 'socketError', 'label': 'Socket error', 'description': 'If the Socket.IO connection has failed, says why', },\n\n        msgsSent: { 'var': 'msgsSent', 'label': '# msgs sent', 'description': 'How many standard messages have been sent to Node-RED?', },\n        msgsReceived: { 'var': 'msgsReceived', 'label': '# msgs received', 'description': 'How many standard messages have been received from Node-RED?', },\n        msgsSentCtrl: { 'var': 'msgsSentCtrl', 'label': '# control msgs sent', 'description': 'How many control messages have been sent to Node-RED?', },\n        msgsCtrlReceived: { 'var': 'msgsCtrlReceived', 'label': '# control msgs received', 'description': 'How many control messages have been received from Node-RED?', },\n        originator: { 'var': 'originator', 'label': 'Node Originator', 'description': 'If the last msg from Node-RED was from a `uib-sender` node, this will be its node id so that messasges can be returned to it', },\n        topic: { 'var': 'topic', 'label': 'Default topic', 'description': 'Optional default topic to be included in outgoing standard messages', },\n\n        started: { 'var': 'started', 'label': 'Has uibuilder client started?', 'description': 'Whether `uibuilder.start()` ran successfully. This should self-run and should not need to be run manually', },\n        version: { 'var': 'version', 'label': 'uibuilder client version', 'description': 'The version of the loaded uibuilder client library', },\n        serverTimeOffset: { 'var': 'serverTimeOffset', 'label': 'Server time offset (Hrs)', 'description': 'The number of hours difference between the Node-red server and the client', },\n    }\n\n    // Track ui observers (see uiWatch)\n    #uiObservers = {}\n\n    //#endregion\n\n    //#region public class vars\n\n    // TODO Move to proper getters\n    //#region ---- Externally read-only (via .get method) ---- //\n    // version - moved to _meta\n    /** Client ID set by uibuilder on connect */\n    clientId = ''\n    /** The collection of cookies provided by uibuilder */\n    cookies = {}\n    /** Copy of last control msg object received from sever */\n    ctrlMsg = {}\n    /** Is Socket.IO client connected to the server? */\n    ioConnected = false\n    // Is the browser tab containing this page visible or not?\n    isVisible = false\n    // Remember the last page (re)load/navigation type: navigate, reload, back_forward, prerender\n    lastNavType = ''\n    /** Last std msg received from Node-RED */\n    msg = {}\n    /** number of messages sent to server since page load */\n    msgsSent = 0\n    /** number of messages received from server since page load */\n    msgsReceived = 0\n    /** number of control messages sent to server since page load */\n    msgsSentCtrl = 0\n    /** number of control messages received from server since page load */\n    msgsCtrlReceived = 0\n    /** Is the client online or offline? */\n    online = navigator.onLine\n    /** last control msg object sent via uibuilder.send() @since v2.0.0-dev3 */\n    sentCtrlMsg = {}\n    /** last std msg object sent via uibuilder.send() */\n    sentMsg = {}\n    /** placeholder to track time offset from server, see fn socket.on(ioChannels.server ...) */\n    serverTimeOffset = null\n    /** placeholder for a socket error message */\n    socketError = null\n    // tab identifier from session storage\n    tabId = ''\n    // Actual name of current page (set in constructor)\n    pageName = null\n    // Is the DOMPurify library loaded? Updated in start()\n    purify = false\n    // Is the Markdown-IT library loaded? Updated in start()\n    markdown = false\n    // Current URL hash. Initial set is done from start->watchHashChanges via a set to make it watched\n    urlHash = location.hash\n    //#endregion ---- ---- ---- ---- //\n\n    // TODO Move to proper getters/setters\n    //#region ---- Externally Writable (via .set method, read via .get method) ---- //\n    /** Default originator node id - empty string by default\n     * @type {string}\n     */\n    originator = ''\n    /** Default topic - used by send if set and no topic provided\n     * @type {(string|undefined)}\n     */\n    topic = undefined\n    //#endregion ---- ---- ---- ---- //\n\n    //#region ---- These are unlikely to be needed externally: ----\n    autoSendReady = true\n    httpNodeRoot = '' // Node-RED setting (via cookie)\n    ioNamespace = ''\n    ioPath = ''\n    retryFactor = 1.5       // starting delay factor for subsequent reconnect attempts\n    retryMs = 2000          // starting retry ms period for manual socket reconnections workaround\n    storePrefix = 'uib_'    // Prefix for all uib-related localStorage\n    started = false\n    // NOTE: These can only change when a client (re)connects\n    socketOptions = {\n        path: this.ioPath,\n        transports: ['polling', 'websocket'],\n        // Using callback so that they are updated automatically on (re)connect\n        // Only put things in here that will be valid for a websocket connected session\n        auth: (cb) => {\n            cb({ // eslint-disable-line n/no-callback-literal\n                clientVersion: version,\n                clientId: this.clientId,\n                pathName: window.location.pathname,\n                urlParams: Object.fromEntries(new URLSearchParams(location.search)),\n                pageName: this.pageName,\n                tabId: this.tabId,\n                lastNavType: this.lastNavType,\n                connectedNum: ++this.connectedNum,\n                // Used to calculate the diff between the server and client connection timestamps - reported if >1 minute\n                browserConnectTimestamp: (new Date()).toISOString(),\n            })\n        },\n        transportOptions: {\n            // Can only set headers when polling\n            polling: {\n                extraHeaders: {\n                    'x-clientid': `${Uib._meta.displayName}; ${Uib._meta.type}; ${Uib._meta.version}; ${this.clientId}`,\n                }\n            },\n        },\n    }\n    //#endregion -- not external --\n\n    //#endregion --- End of variables ---\n\n    //#region ------- Getters and Setters ------- //\n\n    // Change logging level dynamically (affects both console. and print.)\n    set logLevel(level) { logLevel = level; console.log('%c\u2757 info%c [logLevel]', `${LOG_STYLES.level} ${LOG_STYLES.info.css}`, `${LOG_STYLES.head} ${LOG_STYLES.info.txtCss}`, `Set to ${level} (${LOG_STYLES.names[level]})`) /* changeLogLevel(level)*/ }\n    get logLevel() { return logLevel }\n\n    get meta() { return Uib._meta }\n\n    /** Function to set uibuilder properties to a new value - works on any property except _* or #*\n     * Also triggers any event listeners.\n     * Example: this.set('msg', {topic:'uibuilder', payload:42});\n     * @param {string} prop Any uibuilder property who's name does not start with a _ or #\n     * @param {*} val The set value of the property or a string declaring that a protected property cannot be changed\n     * @param {boolean} [store] If true, the variable is also saved to the browser localStorage if possible\n     * @param {boolean} [autoload] If true & store is true, on load, uib will try to restore the value from the store automatically\n     * @returns {*} Input value\n     */\n    set(prop, val, store = false, autoload = false) {\n        // Check for excluded properties - we don't want people to set these\n        // if (this.#excludedSet.indexOf(prop) !== -1) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:set', `Cannot use set() on protected property \"${prop}\"`)()\n            return `Cannot use set() on protected property \"${prop}\"`\n        }\n\n        // We must add the var to the uibuilder object\n        this[prop] = val\n\n        // Keep track of all managed variables\n        this.#managedVars[prop] = prop\n\n        // If requested, save to store\n        if (store === true) this.setStore(prop, val, autoload)\n\n        log('trace', 'Uib:set', `prop set - prop: ${prop}, val: `, val, ` store: ${store}, autoload: ${autoload}`)()\n\n        // Trigger this prop's event callbacks (listeners which are set by this.onChange)\n        // this.emit(prop, val)\n\n        // trigger an event on the prop name, pass both the name and value to the event details\n        this._dispatchCustomEvent('uibuilder:propertyChanged', { 'prop': prop, 'value': val, 'store': store, 'autoload': autoload })\n\n        return val\n    }\n\n    /** Function to get the value of a uibuilder property\n     * Example: uibuilder.get('msg')\n     * @param {string} prop The name of the property to get as long as it does not start with a _ or #\n     * @returns {*|undefined} The current value of the property\n     */\n    get(prop) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:get', `Cannot use get() on protected property \"${prop}\"`)()\n            return\n        }\n        if (prop === 'version') return Uib._meta.version\n        if (prop === 'msgsCtrl') return this.msgsCtrlReceived\n        if (prop === 'reconnections') return this.connectedNum\n        if (this[prop] === undefined) {\n            log('warn', 'Uib:get', `get() - property \"${prop}\" is undefined`)()\n        }\n        return this[prop]\n    }\n\n    /** Write to localStorage if possible. console error output if can't write\n     * Also uses this.storePrefix\n     * @example\n     *   uibuilder.setStore('fred', 42)\n     *   console.log(uibuilder.getStore('fred'))\n     * @param {string} id localStorage var name to be used (prefixed with 'uib_')\n     * @param {*} value value to write to localstore\n     * @param {boolean} [autoload] If true, on load, uib will try to restore the value from the store\n     * @returns {boolean} True if succeeded else false\n     */\n    setStore(id, value, autoload = false) {\n        let autoVars = {}\n        if (autoload === true) {\n            try {\n                autoVars = this.getStore('_uibAutoloadVars') || {}\n            } catch (e) {}\n        }\n        if (typeof value === 'object') {\n            try {\n                value = JSON.stringify(value)\n            } catch (e) {\n                log('error', 'Uib:setStore', 'Cannot stringify object, not storing. ', e)()\n                return false\n            }\n        }\n        try {\n            localStorage.setItem(this.storePrefix + id, value)\n            if (autoload) {\n                autoVars[id] = id\n                try {\n                    localStorage.setItem(this.storePrefix + '_uibAutoloadVars', JSON.stringify(autoVars))\n                } catch (e) {\n                    log('error', 'Uib:setStore', 'Cannot save autoload list. ', e)()\n                }\n            }\n            this._dispatchCustomEvent('uibuilder:propertyStored', { 'prop': id, 'value': value, 'autoload': autoload })\n            return true\n        } catch (e) {\n            log('error', 'Uib:setStore', 'Cannot write to localStorage. ', e)()\n            return false\n        }\n    } // --- end of setStore --- //\n\n    /** Attempt to get and re-hydrate a key value from localStorage\n     * Note that all uib storage is automatically prefixed using this.storePrefix\n     * @param {*} id The key of the value to attempt to retrieve\n     * @returns {*|null|undefined} The re-hydrated value of the key or null if key not found, undefined on error\n     */\n    getStore(id) {\n        try {\n            // @ts-ignore\n            return JSON.parse(localStorage.getItem(this.storePrefix + id))\n        } catch (e) { }\n        try {\n            return localStorage.getItem(this.storePrefix + id)\n        } catch (e) {\n            return undefined\n        }\n    }\n\n    /** Remove a given id from the uib keys in localStorage\n     * @param {*} id The key to remove\n     */\n    removeStore(id) {\n        try {\n            localStorage.removeItem(this.storePrefix + id)\n        } catch (e) { }\n    }\n\n    /** Returns a list of uibuilder properties (variables) that can be watched with onChange\n     * @returns {{[key: string]: string}} List of uibuilder managed variables\n     */\n    getManagedVarList() {\n        return this.#managedVars\n    }\n\n    getWatchedVars() {\n        return Object.keys(this.#propChangeCallbacks)\n    }\n\n    //#endregion ------- -------- ------- //\n\n    //#region ------- Our own event handling system ---------- //\n\n    // TODO Add option to send event details back to Node-RED as uib ctrl msg\n    /** Standard fn to create a custom event with details & dispatch it\n     * @param {string} title The event name\n     * @param {*} details Any details to pass to event output\n     */\n    _dispatchCustomEvent(title, details) {\n        const event = new CustomEvent(title, { detail: details })\n        document.dispatchEvent(event)\n    }\n\n    // See the this.#propChangeCallbacks & msgRecvdByTopicCallbacks private vars\n\n    /** Register on-change event listeners for uibuilder tracked properties\n     * Make it possible to register a function that will be run when the property changes.\n     * Note that you can create listeners for non-existant properties\n     * @example: uibuilder.onChange('msg', (msg) => { console.log('uibuilder.msg changed! It is now: ', msg) })\n     *\n     * @param {string} prop The property of uibuilder that we want to monitor\n     * @param {Function} callback The function that will run when the property changes, parameter is the new value of the property after change\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelChange if you need to remove a listener\n     */\n    onChange(prop, callback) {\n        // Note: Property does not have to exist yet\n\n        // console.debug(`[Uib:onchange] pushing new callback (event listener) for property: ${prop}`)\n\n        // Create a new array or add to the array of callback functions for the property in the events object\n        // if (this.#events[prop]) {\n        //     this.#events[prop].push(callback)\n        // } else {\n        //     this.#events[prop] = [callback]\n        // }\n\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#propChangeCallbacks[prop]) this.#propChangeCallbacks[prop] = { _nextRef: 1 }\n        else this.#propChangeCallbacks[prop]._nextRef++\n\n        const nextCbRef = this.#propChangeCallbacks[prop]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const propChangeCallback = this.#propChangeCallbacks[prop][nextCbRef] = function propChangeCallback(e) {\n            // If the prop name matches the 1st arg in the onChange fn:\n            if (prop === e.detail.prop) {\n                const value = e.detail.value\n                // console.warn('[Uib:onChange:evt] uibuilder:propertyChanged. ', e.detail)\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(value, value)\n            }\n        }\n\n        document.addEventListener('uibuilder:propertyChanged', propChangeCallback)\n\n        return nextCbRef\n    } // ---- End of onChange() ---- //\n\n    cancelChange(prop, cbRef) {\n        document.removeEventListener('uibuilder:propertyChanged', this.#propChangeCallbacks[prop][cbRef])\n        delete this.#propChangeCallbacks[prop][cbRef]\n        // this.#propChangeCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Register a change callback for a specific msg.topic\n     * Similar to onChange but more convenient if needing to differentiate by msg.topic.\n     * @example: let otRef = uibuilder.onTopic('mytopic', function(){ console.log('Received a msg with msg.topic=`mytopic`. msg: ', this) })\n     * To cancel a change listener: uibuilder.cancelTopic('mytopic', otRef)\n     *\n     * @param {string} topic The msg.topic we want to listen for\n     * @param {Function} callback The function that will run when an appropriate msg is received. `this` inside the callback as well as the cb's single argument is the received msg.\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelTopic if you need to remove a listener\n     */\n    onTopic(topic, callback) {\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#msgRecvdByTopicCallbacks[topic]) this.#msgRecvdByTopicCallbacks[topic] = { _nextRef: 1 }\n        else this.#msgRecvdByTopicCallbacks[topic]._nextRef++\n\n        const nextCbRef = this.#msgRecvdByTopicCallbacks[topic]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const msgRecvdEvtCallback = this.#msgRecvdByTopicCallbacks[topic][nextCbRef] = function msgRecvdEvtCallback(e) {\n            const msg = e.detail\n            // console.log('[Uib:onTopic:evt] uibuilder:stdMsgReceived where topic matches. ', e.detail)\n            if (msg.topic === topic) {\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(msg, msg)\n            }\n        }\n\n        document.addEventListener('uibuilder:stdMsgReceived', msgRecvdEvtCallback)\n\n        return nextCbRef\n    }\n\n    cancelTopic(topic, cbRef) {\n        document.removeEventListener('uibuilder:stdMsgReceived', this.#msgRecvdByTopicCallbacks[topic][cbRef])\n        delete this.#msgRecvdByTopicCallbacks[topic][cbRef]\n        // this.#msgRecvdCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Trigger event listener for a given property\n     * Called when uibuilder.set is used\n     *\n     * @param {*} prop The property for which to run the callback functions\n     * arguments: Additional arguments contain the value to pass to the event callback (e.g. newValue)\n     */\n    // emit(prop) {\n    //     var evt = this.#events[prop]\n    //     if (!evt) {\n    //         return\n    //     }\n    //     var args = Array.prototype.slice.call(arguments, 1)\n    //     for (var i = 0; i < evt.length; i++) {\n    //         evt[i].apply(this, args)\n    //     }\n    //     log('trace', 'Uib:emit', `${evt.length} listeners run for prop ${prop} `)()\n    // }\n\n    /** Forcibly removes all event listeners from the events array\n     * Use if you need to re-initialise the environment\n     */\n    // clearEventListeners() {\n    //     this.#events = []\n    // } // ---- End of clearEventListeners() ---- //\n\n    /** Clear a single property event listeners\n     * @param {string} prop The property of uibuilder for which we want to clear the event listener\n     */\n    // clearListener(prop) {\n    //     if (this.#events[prop]) delete this.#events[prop]\n    // }\n\n    //#endregion ---------- End of event handling system ---------- //\n\n    //#region ------- General Utility Functions -------- //\n\n    /** Check supplied msg from server for a timestamp - if received, work out & store difference to browser time\n     * @param {object} receivedMsg A message object recieved from Node-RED\n     * @returns {void} Updates self.serverTimeOffset if different to previous value\n     */\n    _checkTimestamp(receivedMsg) {\n        if (Object.prototype.hasOwnProperty.call(receivedMsg, 'serverTimestamp')) {\n            const serverTimestamp = new Date(receivedMsg.serverTimestamp)\n            // @ts-ignore\n            const offset = Math.round(((new Date()) - serverTimestamp) / 3600000) // in ms /3.6m to get hours\n            if (offset !== this.serverTimeOffset) {\n                log('trace', `Uib:checkTimestamp:${this._ioChannels.server} (server)`, `Offset changed to: ${offset} from: ${this.serverTimeOffset}`)()\n                this.set('serverTimeOffset', offset)\n            }\n        }\n    }\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {*} Selected HTML element or null\n     */\n    $(cssSelector) {\n        /** @type {*} Some kind of HTML element */\n        let el = document.querySelector(cssSelector)\n\n        if (!el) {\n            log(1, 'Uib:$', `No element found for CSS selector ${cssSelector}`)()\n            return null\n        }\n\n        if ( el.nodeName === 'TEMPLATE' ) {\n            el = el.content.firstElementChild\n            if (!el) {\n                log(0, 'Uib:$', `Template selected for CSS selector ${cssSelector} but it is empty`)()\n                return null\n            }\n        }\n\n        return el\n    }\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {*} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {Array} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$(cssSelector) {\n        return Array.from(document.querySelectorAll(cssSelector))\n    }\n\n    /** Set the default originator. Set to '' to ignore. Used with uib-sender.\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    setOriginator(originator = '') {\n        this.set('originator', originator)\n    } // ---- End of setOriginator ---- //\n\n    /** HTTP Ping/Keep-alive - makes a call back to uibuilder's ExpressJS server and receives a 204 response\n     * Can be used to keep sessions alive.\n     * @example\n     *   uibuilder.setPing(2000) // repeat every 2 sec. Re-issue with ping(0) to turn off repeat.\n     *   uibuilder.onChange('ping', function(data) {\n     *      console.log('pinger', data)\n     *   })\n     * @param {number} ms Repeat interval in ms\n     */\n    setPing(ms = 0) {\n        const oReq = new XMLHttpRequest()\n        oReq.addEventListener('load', () => {\n            const headers = (oReq.getAllResponseHeaders()).split('\\r\\n')\n            const elapsedTime = Number(new Date()) - Number((oReq.responseURL.split('='))[1])\n            this.set('ping', {\n                success: !!((oReq.status === 201) || (oReq.status === 204)), // true if one of the listed codes else false\n                status: oReq.status,\n                headers: headers,\n                url: oReq.responseURL,\n                elapsedTime: elapsedTime,\n            })\n        })\n\n        if (this.#pingInterval) {\n            clearInterval(this.#pingInterval)\n            this.#pingInterval = undefined\n        }\n\n        oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n        oReq.send()\n\n        if (ms > 0) {\n            this.#pingInterval = setInterval(() => {\n                oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n                oReq.send()\n            }, ms)\n        }\n    } // ---- End of ping ---- //\n\n    log() {\n        log(...arguments)()\n    }\n\n    /** Convert JSON to Syntax Highlighted HTML\n     * @param {object} json A JSON/JavaScript Object\n     * @returns {html} Object reformatted as highlighted HTML\n     */\n    syntaxHighlight(json) {\n        return syntaxHighlight(json)\n    } // --- End of syntaxHighlight --- //\n\n    /** Copies a uibuilder variable to the browser clipboard\n     * @param {string} varToCopy The name of the uibuilder variable to copy to the clipboard\n     */\n    copyToClipboard(varToCopy) {\n        let data = ''\n        try {\n            console.log(this.get(varToCopy), JSON.stringify(this.get(varToCopy)))\n            data = JSON.stringify(this.get(varToCopy))\n        } catch (e) {\n            log('error', 'copyToClipboard', `Could not copy \"${varToCopy}\" to clipboard.`, e.message)()\n        }\n        navigator.clipboard.writeText(data)\n    } // --- End of copyToClipboard --- //\n\n    /** DEPRECATED FOR NOW - wasn't working properly.\n     * Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.\n     * Requires IntersectionObserver (available to all mainstream browsers from early 2019)\n     * Automatically sends a msg back to Node-RED.\n     * Requires the element to already exist.\n     */\n    elementIsVisible() {\n        const info = 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'\n        log('error', 'uib:elementIsVisible', info)()\n        this.send({payload: 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'})\n        return false\n    } // --- End of elementIsVisible --- //\n\n    /** Does the chosen CSS Selector currently exist?\n     * Automatically sends a msg back to Node-RED unless turned off.\n     * @param {string} cssSelector Required. CSS Selector to examine for visibility\n     * @param {boolean} [msg] Optional, default=true. If true also sends a message back to Node-RED\n     * @returns {boolean} True if the element exists\n     */\n    elementExists(cssSelector, msg = true) {\n        const el = document.querySelector(cssSelector)\n\n        let exists = false\n        if (el !== null) exists = true\n\n        if (msg === true) {\n            this.send({\n                payload: exists,\n                info: `Element \"${cssSelector}\" ${exists ? 'exists' : 'does not exist'}`\n            })\n        }\n\n        return exists\n    } // --- End of elementExists --- //\n\n    /** Only keep the URL Hash & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return '#' + url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Set up an event listener to watch for hash changes\n     * and set the watchable urlHash variable\n     */\n    _watchHashChanges() {\n        this.set('urlHash', location.hash)\n        window.addEventListener('hashchange', (event) => {\n            this.set('urlHash', location.hash)\n            if (this.#sendUrlHash === true) {\n                this.send({ topic: 'hashChange', payload: location.hash, newHash: this.keepHashFromUrl(event.newURL), oldHash: this.keepHashFromUrl(event.oldURL) })\n            }\n        })\n    }\n\n    /** Returns true/false or a default value for truthy/falsy and other values\n     * @param {string|number|boolean|*} val The value to test\n     * @param {any} deflt Default value to use if the value is not truthy/falsy\n     * @returns {boolean|any} The truth! Or the default\n     */\n    truthy(val, deflt) {\n        let ret\n        if (['on', 'On', 'ON', 'true', 'True', 'TRUE', '1', true, 1].includes(val)) ret = true\n        else if (['off', 'Off', 'OFF', 'false', 'False', 'FALSE', '0', false, 0].includes(val)) ret = false\n        else ret = deflt\n        return ret\n    }\n\n    /** Turn on/off/toggle sending URL hash changes back to Node-RED\n     * @param {string|number|boolean|undefined} [toggle] Optional on/off/etc\n     * @returns {boolean} True if we will send a msg to Node-RED on a hash change\n     */\n    watchUrlHash(toggle) {\n        this.#sendUrlHash = this.truthy(toggle, this.#sendUrlHash !== true)\n        return this.#sendUrlHash\n    }\n\n    /** Navigate to a new page or a new route (hash)\n     * @param {string} url URL to navigate to. Can be absolute or relative (to current page) or just a hash for a route change\n     * @returns {Location} The new window.location string\n     */\n    navigate(url) {\n        if (url) window.location.href = url\n        return window.location\n    }\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- UI handlers --------- //\n\n    //#region -- Direct to _ui --\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        _ui.ui(json)\n    }\n\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        _ui.replaceSlot(el, component)\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        _ui.replaceSlotMarkdown(el, component)\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        return _ui.convertMarkdown(mdText)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        return _ui.sanitiseHTML(html)\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        _ui.loadScriptSrc(url)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        _ui.loadStyleSrc(url)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        _ui.loadScriptTxt(textFn)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        _ui.loadStyleTxt(textFn)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) {\n        _ui.showDialog(type, ui, msg)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        _ui.loadui(url)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        return _ui.uiGet(cssSelector, propName)\n    }\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     */\n    async include(url, uiOptions) {\n        _ui.include(url, uiOptions)\n    }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} component Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, component) {\n        _ui.uiEnhanceElement(el, component)\n    }\n\n    //#endregion -- direct to _ui --\n\n    /** * Show/hide a display card on the end of the visible HTML that will dynamically display the last incoming msg from Node-RED\n     * The card has the id `uib_last_msg`. Updates are done from a listener set up in the start function.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showMsg(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowMsg\n        this.#isShowMsg = showHide\n        let slot = 'Waiting for a message from Node-RED'\n\n        if (this.msg && Object.keys(this.msg).length > 0) {\n            slot = this.syntaxHighlight(this.msg)\n        }\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_last_msg_wrap',\n                ],\n            })\n        } else {\n            _ui._uiReplace({\n                components: [\n                    {\n                        type: 'div',\n                        id: 'uib_last_msg_wrap',\n                        parent: parent,\n                        attributes: {\n                            title: 'Last message from Node-RED',\n                        },\n                        components: [\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.copyToClipboard(\"msg\")',\n                                    class: 'compact',\n                                    style: 'right:3em;',\n                                },\n                                slot: '\uD83D\uDCCB',\n                            },\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.showMsg()',\n                                    class: 'compact',\n                                    style: 'right:.5em;',\n                                },\n                                slot: '\u26D4',\n                            },\n                            {\n                                type: 'pre',\n                                id: 'uib_last_msg',\n                                // parent: 'uib_last_msg_wrap',\n                                attributes: {\n                                    class: 'syntax-highlight',\n                                },\n                                slot: slot,\n                            },\n                        ],\n                    },\n                ],\n            })\n        }\n\n        return showHide\n    }\n\n    /** Show a browser notification if possible.\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * @example uibuilder.notify( 'My simple message to the user' )\n     * @example uibuilder.notify( {topic: 'My Title', payload: 'My simple message to the user'} )\n     * @example uibuilder.notify( {title: 'My Title', body: 'My simple message to the user'} )\n     * @example // If config.return = true, a promise is returned.\n     * // The resolved promise is only returned if the notification is clicked by the user.\n     * // Can be used to send the response back to Node-RED\n     * uibuilder.notify(notifyConfig).then( res => uibuilder.eventSend(res) )\n     * @ref https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config data or simple message string\n     * @returns {Promise<Event>|null} A promise that resolves to the click event or null\n     */\n    notify(config) {\n        if (config.return) return _ui.notification(config)\n\n        _ui.notification(config)\n            .then( res => { // eslint-disable-line promise/always-return\n                log('info', 'Uib:notification', 'Notification completed event', res)()\n                // if (config.return) return res\n            })\n            .catch( err => {\n                log('error', 'Uib:notification', 'Notification error event', err)()\n            })\n        return null\n    }\n\n    /** Scroll the page\n     * https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollIntoView\n     * @param {string} [cssSelector] Optional. If not set, scrolls to top of page.\n     * @param {{block:(string|undefined),inline:(string|undefined),behavior:(string|undefined)}} [opts] Optional. DOM scrollIntoView options\n     * @returns {boolean} True if element was found, false otherwise\n     */\n    scrollTo(cssSelector, opts) {\n        // @ts-ignore\n        if (!opts) opts = {}\n        if (!cssSelector || cssSelector === 'top'  || cssSelector === 'start') cssSelector = 'body'\n        else if (cssSelector === 'bottom' || cssSelector === 'end') {\n            cssSelector = 'body'\n            opts.block = 'end'\n        }\n        const el = this.$(cssSelector)\n        if (el) {\n            el.scrollIntoView(opts)\n            return true\n        }\n        return false\n    }\n\n    /** Show/hide a display card on the end of the visible HTML that will dynamically display the current status of the uibuilder client\n     * The card has the id `uib_status`.\n     * The display is updated by an event listener created in the class constructor.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showStatus(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowStatus\n        this.#isShowStatus = showHide\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_status',\n                ],\n            })\n            return showHide\n        }\n\n        const root = {\n            components: [\n                {\n                    type: 'div',\n                    id: 'uib_status',\n                    parent: parent,\n                    attributes: {\n                        title: 'Current status of the uibuilder client',\n                        class: 'text-smaller',\n                    },\n                    components: [\n                        {\n                            'type': 'table',\n                            'components': [\n                                {\n                                    'type': 'tbody',\n                                    'components': []\n                                }\n                            ]\n                        }\n                    ]\n                }\n            ]\n        }\n        const details = root.components[0].components[0].components[0].components\n\n        Object.values(this.#showStatus).forEach( entry => {\n            details.push({\n                'type': 'tr',\n                'attributes': {\n                    title: entry.description,\n                },\n                'components': [\n                    {\n                        'type': 'th',\n                        'slot': entry.label,\n                    },\n                    {\n                        'type': 'td',\n                        'attributes': {\n                            'data-varType': entry.var,\n                        },\n                        'slot': entry.var === 'version' ? Uib._meta.version : JSON.stringify(this[entry.var]),\n                    }\n                ],\n            })\n        })\n\n        _ui._uiReplace(root)\n\n        return showHide\n    }\n\n    /** Use the Mutation Observer browser API to watch for changes to a single element on the page.\n     * OMG! It is sooo hard to turn the data into something that successfully serialises so it can be sent back to Node-RED!\n     * NB: Each cssSelector creates a unique watcher. Sending the same selector overwrites the previous one.\n     * @param {string} cssSelector A CSS Selector that selects the element to watch for changes\n     * @param {boolean|\"toggle\"} [startStop] true=start watching the DOM, false=stop. Default='toggle'\n     * @param {boolean} [send] true=Send changes to Node-RED, false=Don't send. Default=true\n     * @param {boolean} [showLog] true=Output changes to log, false=stop. Default=true. Log level is 2 (Info)\n     * @returns {boolean} True if the watch is on, false otherwise\n     */\n    uiWatch(cssSelector, startStop = 'toggle', send = true, showLog = true) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.querySelector(cssSelector)\n        if (!targetNode) {\n            log('warn', 'uibuilder.module.js:uiWatch', `CSS Selector '${cssSelector}' not found.`)()\n            return false\n        }\n\n        if (startStop === 'toggle' || startStop === undefined || startStop === null) {\n            if (this.#uiObservers[cssSelector]) startStop = false\n            else startStop = true\n        }\n\n        // Need a ref to the Uib this\n        const that = this\n\n        if (startStop === true) {\n            // Create an observer instance\n            this.#uiObservers[cssSelector] = new MutationObserver( function( mutationList /* , observer */ ) {\n                const out = []\n\n                mutationList.forEach( mu => {\n                    // console.log({ mu })\n                    const oMu = {\n                        type: mu.type,\n                        oldValue: mu.oldValue !== null ? mu.oldValue : undefined,\n                    }\n\n                    if (mu.addedNodes.length > 0) {\n                        oMu.addedNodes = []\n                        mu.addedNodes.forEach( (an, i) => {\n                            oMu.addedNodes.push(_ui.nodeGet(mu.addedNodes[i]))\n                        })\n                    }\n\n                    if (mu.removedNodes.length > 0) {\n                        oMu.removedNodes = []\n                        mu.removedNodes.forEach( (an, i) => {\n                            oMu.removedNodes.push(_ui.nodeGet(mu.removedNodes[i]))\n                        })\n                    }\n\n                    if ( mu.type === 'attributes' ) {\n                        oMu.attributeName = mu.attributeName\n                        // @ts-ignore\n                        oMu.newValue = mu.target.attributes[mu.attributeName].value\n                    }\n\n                    out.push(oMu)\n                })\n\n                // Custom event\n                that._dispatchCustomEvent('uibuilder:domChange', out)\n                // Send a msg back to node-red\n                if (send === true) {\n                    that.send({\n                        _ui: {\n                            cssSelector: cssSelector,\n                            uiChanges: out\n                        },\n                        topic: that.topic || `DOM Changes for '${cssSelector}'`,\n                    })\n                }\n                // Log to info\n                if (showLog === true) {\n                    log('info', 'uibuilder.module.js:uiWatch', `DOM Changes for '${cssSelector}'`, { uiChanges: out }, { mutationList })()\n                }\n            } )\n\n            // Start observing the target node for configured mutations\n            this.#uiObservers[cssSelector].observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:uiWatch', `Started Watching DOM changes for '${cssSelector}'`)()\n        } else {\n            this.#uiObservers[cssSelector].disconnect()\n            delete this.#uiObservers[cssSelector]\n            log('trace', 'uibuilder.module.js:uiWatch', `Stopped Watching DOM changes for '${cssSelector}'`)()\n        }\n\n        return startStop\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- HTML cache and DOM watch --------- //\n\n    /** Clear the saved DOM from localStorage */\n    clearHtmlCache() {\n        this.removeStore('htmlCache')\n        log('trace', 'uibuilder.module.js:clearHtmlCache', 'HTML cache cleared')()\n    }\n\n    /** Restore the complete DOM (the whole web page) from browser localStorage if available */\n    restoreHtmlFromCache() {\n        // Is the html cached? If so, restore it\n        const htmlCache = this.getStore('htmlCache')\n        if (htmlCache) {\n            const targetNode = document.getElementsByTagName('html')[0]\n            // Restore the entire HTML\n            targetNode.innerHTML = htmlCache\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'Restored HTML from cache')()\n        } else {\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'No cache to restore')()\n        }\n    }\n\n    /** Save the current DOM state to browser localStorage.\n     * localStorage is persistent and so can be recovered even after a browser restart.\n     */\n    saveHtmlCache() {\n        // Save the updated entire HTML in localStorage\n        this.setStore('htmlCache', document.documentElement.innerHTML)\n    }\n\n    /** Use the Mutation Observer browser API to watch for and save changes to the HTML\n     * Once the observer is created, it will be reused.\n     * Sending true or undefined will turn on the observer, false turns it off.\n     * saveHtmlCache is called whenever anything changes in the dom. This allows\n     * users to call restoreHtmlFromCache() on page load if desired to completely reload\n     * to the last saved state.\n     * @param {boolean} startStop true=start watching the DOM, false=stop\n     */\n    watchDom(startStop) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.documentElement\n\n        // Need a ref to the Uib this\n        const that = this\n\n        // Create an observer instance\n        if (!this._htmlObserver) {\n            this._htmlObserver = new MutationObserver( function(/* mutationList, observer */) {\n                // We don't need to know the details - so kill off any outstanding mutation records\n                this.takeRecords()\n                // Save the updated entire HTML in localStorage\n                that.saveHtmlCache()\n            } )\n        }\n\n        if (startStop === true || startStop === undefined) {\n            // Start observing the target node for configured mutations\n            this._htmlObserver.observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:watchDom', 'Started Watching and saving DOM changes')()\n        } else {\n            this._htmlObserver.disconnect()\n            log('trace', 'uibuilder.module.js:watchDom', 'Stopped Watching and saving DOM changes')()\n        }\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- Message Handling (To/From Node-RED) -------- //\n\n    /** Internal send fn. Send a standard or control msg back to Node-RED via Socket.IO\n     * NR will generally expect the msg to contain a payload topic\n     * @param {object} msgToSend The msg object to send.\n     * @param {string} [channel=uiBuilderClient] The Socket.IO channel to use, must be in self.ioChannels or it will be ignored\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    _send(msgToSend, channel, originator = '') {\n        if (channel === null || channel === undefined) channel = this._ioChannels.client\n\n        // Make sure msgToSend is an object\n        if (channel === this._ioChannels.client) {\n            msgToSend = makeMeAnObject(msgToSend, 'payload')\n        } else if (channel === this._ioChannels.control) {\n            msgToSend = makeMeAnObject(msgToSend, 'uibuilderCtrl')\n            if (!Object.prototype.hasOwnProperty.call(msgToSend, 'uibuilderCtrl')) {\n                msgToSend.uibuilderCtrl = 'manual send'\n            }\n            // help remember where this came from as ctrl msgs can come from server or client\n            msgToSend.from = 'client'\n        }\n\n        /** since 2020-01-02 Added _socketId which should be the same as the _socketId on the server */\n        msgToSend._socketId = this._socket.id\n\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n\n        // Add the originator metadata if required\n        if (originator === '' && this.originator !== '') originator = this.originator\n        if (originator !== '') Object.assign(msgToSend, { '_uib': { 'originator': originator } })\n\n        // If the msg does not have a topic - see if we want to add one\n        if ( !Object.prototype.hasOwnProperty.call(msgToSend, 'topic') ) {\n            // From the default (`uibuilder.set('topic', 'some topic')`)\n            if (this.topic !== undefined && this.topic !== '') msgToSend.topic = this.topic\n            else {\n                // Did the last inbound msg have a topic?\n                if ( Object.prototype.hasOwnProperty.call(this, 'msg') && Object.prototype.hasOwnProperty.call(this.msg, 'topic') ) {\n                    msgToSend.topic = this.msg.topic\n                }\n            }\n        }\n\n        // If a standard send & _ui property exists, make sure to add _ui.from = 'client'\n        if (msgToSend._ui) msgToSend._ui.from = 'client'\n\n        // Track how many messages have been sent & last msg sent\n        let numMsgs\n        if (channel === this._ioChannels.client) {\n            this.set('sentMsg', msgToSend)\n            numMsgs = this.set('msgsSent', ++this.msgsSent)\n        } else if (channel === this._ioChannels.control) {\n            this.set('sentCtrlMsg', msgToSend)\n            numMsgs = this.set('msgsSentCtrl', ++this.msgsSentCtrl)\n        }\n        log('trace', 'Uib:_send', ` Channel '${channel}'. Sending msg #${numMsgs}`, msgToSend)()\n\n        this._socket.emit(channel, msgToSend)\n    } // --- End of Send Msg Fn --- //\n\n    /** Send a standard message to NR\n     * @example uibuilder.send({payload:'Hello'})\n     * @param {object} msg Message to send\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    send(msg, originator = '') {\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Send a control msg to NR\n     * @param {object} msg Message to send\n     */\n    sendCtrl(msg) {\n        this._send(msg, this._ioChannels.control)\n    }\n\n    /** Easily send a msg back to Node-RED on a DOM event\n     * @example In plain HTML/JavaScript\n     *    `<button id=\"button1\" name=\"button 1\" data-fred=\"jim\"></button>`\n     *    $('#button1').onclick = (evt) => {\n     *      uibuilder.eventSend(evt)\n     *    }\n     * @example\n     * In VueJS: `<b-button id=\"myButton1\" @click=\"doEvent\" data-something=\"hello\"></b-button>`\n     * In VueJS methods: `doEvent: uibuilder.eventSend,`\n     *\n     * All `data-` attributes will be passed back to Node-RED,\n     *    use them instead of arguments in the click function.\n     *    All target._ui custom properties are also passed back to Node-RED.\n     *\n     * @param {MouseEvent|any} domevent DOM Event object\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    eventSend(domevent, originator = '') { // eslint-disable-line sonarjs/cognitive-complexity\n        // @ts-ignore Handle case where vue messes up `this`\n        if ( this.$attrs ) {\n            log('error', 'Uib:eventSend', '`this` has been usurped by VueJS. Make sure that you wrap the call in a function: `doEvent: function (event) { uibuilder.eventSend(event) },`' )()\n            return\n        }\n        if (!domevent && !event) {\n            log('warn', 'Uib:eventSend', 'Neither the domevent nor the hidden event properties are set. You probably called this function directly rather than applying to an on click event.' )()\n            return\n        }\n        // Handle no argument, e.g. <button onClick=\"uibuilder.eventSend()\"> - event is a hidden variable when fn used in addEventListener\n        if (!domevent || !domevent.constructor) domevent = event\n\n        // The argument must be a DOM event\n        if ((!domevent.constructor.name.endsWith('Event')) || (!domevent.currentTarget)) {\n            log('warn', 'Uib:eventSend', `ARGUMENT NOT A DOM EVENT - use data attributes not function arguments to pass data. Arg Type: ${domevent.constructor.name}`, domevent)()\n            return\n        }\n\n        // Prevent default event action\n        domevent.preventDefault()\n\n        // The target element\n        const target = domevent.currentTarget\n\n        // Get target properties - only shows custom props not element default ones\n        const props = {}\n        Object.keys(target).forEach( key => {\n            if (key.startsWith('_')) return // Exclude private\n            props[key] = target[key]\n        })\n\n        // Attempt to get target attributs - can fail for certain target types\n        const ignoreAttribs = ['class', 'id', 'name']\n        let attribs\n        try {\n            attribs = Object.assign({},\n                ...Array.from(target.attributes,\n                    ( { name, value } ) => {\n                        if ( !ignoreAttribs.includes(name) ) {\n                            return ({ [name]: value })\n                        }\n                        return undefined\n                    }\n                )\n            )\n        } catch (e) {}\n\n        // If target embedded in a form, include the form data\n        let form\n        const frmVals = []\n        if ( target.form ) {\n            form = {}\n            form.valid = target.form.checkValidity()\n            Object.values(target.form).forEach( (frmEl, i) => {\n                const id = frmEl.id !== '' ? frmEl.id : (frmEl.name !== '' ? frmEl.name : `${i}-${frmEl.type}`)\n\n                // We must have both an element id (we may have forced one above) AND\n                // the element type MUST be not undefined - to allow for the extra properties added by frameworks such as Svelte\n                if (id !== '' && frmEl.type) {\n                    // Stupid HTML doesn't use value attrib for checkboxes. So override if value is set to default\n                    if ('checked' in frmEl && frmEl.value === 'on') frmEl.value = frmEl.checked.toString()\n\n                    frmVals.push( { key: id, val: frmEl.value } ) // simplified for addition to msg.payload\n\n                    form[id] = {\n                        'id': frmEl.id,\n                        'name': frmEl.name,\n                        'value': frmEl.value,\n                        'valid': frmEl.checkValidity(),\n                        'type': frmEl.type,\n                    }\n\n                    if (form[id].valid === false) {\n                        const v = frmEl.validity\n                        form[id].validity = {\n                            badInput: v.badInput === true ? v.badInput : undefined,\n                            customError: v.customError === true ? v.customError : undefined,\n                            patternMismatch: v.patternMismatch === true ? v.patternMismatch : undefined,\n                            rangeOverflow: v.rangeOverflow === true ? v.rangeOverflow : undefined,\n                            rangeUnderflow: v.rangeUnderflow === true ? v.rangeUnderflow : undefined,\n                            stepMismatch: v.stepMismatch === true ? v.stepMismatch : undefined,\n                            tooLong: v.tooLong === true ? v.tooLong : undefined,\n                            tooShort: v.tooShort === true ? v.tooShort : undefined,\n                            typeMismatch: v.typeMismatch === true ? v.typeMismatch : undefined,\n                            valueMissing: v.valueMissing === true ? v.valueMissing : undefined,\n                        }\n                    }\n\n                    if (frmEl.dataset) form[id].data = frmEl.dataset\n                }\n            })\n        }\n\n        // Check for CSS Classes\n        let classes\n        try {\n            classes = Array.from(target.classList)\n        } catch (e) {}\n\n        // Each `data-xxxx` attribute is added as a property\n        let payload = { ...target.dataset }\n\n        // Handle Notification events\n        let nprops\n        if ( Object.prototype.toString.call(target) === '[object Notification]') {\n            // Fixed payload for convenience\n            payload = `notification-${target.userAction}`\n            // Capture the notification properties\n            nprops = {\n                // userAction: target.userAction, // uib custom prop: click, close or error\n                actions: target.actions,\n                badge: target.badge,\n                body: target.body,\n                data: target.data,\n                dir: target.dir,\n                icon: target.icon,\n                image: target.image,\n                lang: target.lang,\n                renotify: target.renotify,\n                requireInteraction: target.requireInteraction,\n                silent: target.silent,\n                tag: target.tag,\n                timestamp: target.timestamp,\n                title: target.title,\n                vibrate: target.vibrate,\n            }\n        }\n        // console.log(Object.prototype.toString.call(target))\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            // - this may be an empty Object if no data attributes defined\n            payload: payload,\n\n            _ui: {\n                type: 'eventSend',\n                id: target.id !== '' ? target.id : undefined,\n                name: target.name !== '' ? target.name : undefined,\n                slotText: target.textContent ? target.textContent.substring(0, 255) : undefined,\n\n                form: form,\n                props: props,\n                attribs: attribs,\n                classes: classes,\n\n                notification: nprops,\n\n                event: domevent.type,\n                altKey: domevent.altKey,\n                ctrlKey: domevent.ctrlKey,\n                shiftKey: domevent.shiftKey,\n                metaKey: domevent.metaKey,\n\n                pointerType: domevent.pointerType,\n                nodeName: target.nodeName,\n\n                clientId: this.clientId,\n                pageName: this.pageName,\n                tabId: this.tabId,\n            }\n        }\n\n        if (frmVals.length > 0) {\n            frmVals.forEach( entry => {\n                msg.payload[entry.key] = entry.val\n            })\n        }\n\n        if (domevent.type === 'change') {\n            // Checkboxes don't have a value!!\n            msg._ui.newValue = msg.payload.value = 'checked' in target ? target.checked : domevent.target.value\n        }\n\n        log('trace', 'Uib:eventSend', 'Sending msg to Node-RED', msg)()\n        if (target.dataset && target.dataset.length === 0) log('warn', 'Uib:eventSend', 'No payload in msg. data-* attributes should be used.')()\n\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Easily send the entire DOM/HTML msg back to Node-RED\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     * @param {boolean} [send] If true (default) directly send response to Node-RED. Is false when calling from Node-RED as a command.\n     * @returns {string} The HTML as a string\n     */\n    htmlSend(originator = '', send = true) {\n        const out = `<!doctype html>\\n${document.documentElement.outerHTML}`\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            payload: out,\n            length: out.length,\n            topic: this.topic,\n        }\n\n        log('trace', 'Uib:htmlSend', 'Sending full HTML to Node-RED', msg)()\n\n        if (send === true) this._send(msg, this._ioChannels.client, originator)\n        return out\n    }\n\n    /** Process msg._uib.command - Remember to update #extCommands with new allowed commands\n     * @param {object} msg Msg from Node-RED containing a msg._uib object\n     */\n    _uibCommand(msg) {\n        if (!msg._uib || !msg._uib.command) {\n            log('error', 'uibuilder:_uibCommand', 'Invalid command message received', { msg })()\n            msg.payload = msg.error = 'Invalid command message received'\n            this.send(msg)\n            return\n        }\n        const cmd = msg._uib.command\n        // Disallowed command request outputs error and ignores the msg (NB: Case must match)\n        if (!this.#extCommands.includes(cmd.trim())) {\n            log('error', 'Uib:_uibCommand', `Command '${cmd} is not allowed to be called externally`)()\n            return\n        }\n        const prop = msg._uib.prop\n        const value = msg._uib.value\n        const quiet = msg._uib.quiet ?? false\n        let response, info\n\n        // Don't forget to update `#extCommands`, `docs/client-docs/control-from-node-red.md` & `functions.md`\n        switch (cmd) {\n            case 'elementIsVisible': {\n                response = this.elementIsVisible(prop)\n                // info = `Element \"${prop}\" ${response ? 'is visible' : 'is not visible'}`\n                break\n            }\n\n            case 'elementExists': {\n                response = this.elementExists(prop, false)\n                info = `Element \"${prop}\" ${response ? 'exists' : 'does not exist'}`\n                break\n            }\n\n            case 'get': {\n                response = this.get(prop)\n                break\n            }\n\n            case 'getManagedVarList': {\n                if (prop === 'full') response = this.getManagedVarList()\n                else response = Object.values(this.getManagedVarList())\n                break\n            }\n\n            case 'getWatchedVars': {\n                if (prop === 'full') response = this.getWatchedVars()\n                else response = Object.values(this.getWatchedVars())\n                break\n            }\n\n            case 'htmlSend': {\n                response = this.htmlSend('', false)\n                break\n            }\n\n            case 'include': {\n                // include is async\n                response = _ui.include(prop, value)\n                break\n            }\n\n            case 'navigate': {\n                let newUrl\n                if (prop) newUrl = prop\n                else if (value) newUrl = value\n                response = this.navigate(newUrl)\n                break\n            }\n\n            case 'scrollTo': {\n                response = this.scrollTo(prop, value)\n                break\n            }\n\n            case 'set': {\n                let store = false\n                let autoload = false\n                if (msg._uib.options && msg._uib.options.store) {\n                    if (msg._uib.options.store === true) store = true\n                    if (msg._uib.options.autoload === true) autoload = true\n                }\n                response = this.set(prop, value, store, autoload)\n                break\n            }\n\n            case 'showMsg': {\n                response = this.showMsg(value, prop)\n                break\n            }\n\n            case 'showStatus': {\n                response = this.showStatus(value, prop)\n                break\n            }\n\n            case 'uiGet': {\n                response = _ui.uiGet(prop, value)\n                break\n            }\n\n            case 'uiWatch': {\n                response = this.uiWatch(prop)\n                break\n            }\n\n            case 'watchUrlHash': {\n                response = this.watchUrlHash(prop)\n                break\n            }\n\n            default: {\n                log('warning', 'Uib:_uibCommand', `Command '${cmd}' not yet implemented`)()\n                break\n            }\n        }\n\n        if (quiet !== true) {\n            if (response === undefined) {\n                response = `'${prop}' is undefined`\n            }\n            if (Object(response).constructor === Promise) {\n                // response = `'${cmd} ${prop}' submitted. Cmd is async, no response available`\n                response\n                    .then( (/** @type {any} */ data) => {\n                        msg.payload = msg._uib.response = data\n                        msg.info = msg._uib.info = info\n                        if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                        this.send(msg)\n                        return true\n                    })\n                    .catch( err => {\n                        log(0, 'Uib:_uibCommand', 'Error: ', err)()\n                    })\n            } else {\n                msg.payload = msg._uib.response = response\n                msg.info = msg._uib.info = info\n                if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                this.send(msg)\n            }\n        }\n    } // --- end of _uibCommand ---\n\n    /** Do we want to process something? Check pageName, clientId, tabId. Defaults to yes.\n     * @param {*} obj Either a msg._ui or msg._uib object to check\n     * @returns {boolean} True if we should process the inbound _ui/_uib msg, false if not.\n     */\n    _forThis(obj) {\n        let r = true\n\n        // Is this msg for this pageName?\n        if (obj.pageName && obj.pageName !== this.pageName) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this page')()\n            r = false\n        }\n\n        // Is this msg for this clientId?\n        if (obj.clientId && obj.clientId !== this.clientId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this clientId')()\n            r = false\n        }\n\n        // Is this msg for this tabId?\n        if (obj.tabId && obj.tabId !== this.tabId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this tabId')()\n            r = false\n        }\n\n        return r\n    }\n\n    // Handle received messages - Process some msgs internally, emit specific events on document that make it easy for coders to use\n    _msgRcvdEvents(msg) {\n        // Message received\n        this._dispatchCustomEvent('uibuilder:stdMsgReceived', msg)\n\n        // Topic\n        if ( msg.topic ) this._dispatchCustomEvent(`uibuilder:msg:topic:${msg.topic}`, msg)\n\n        // Handle msg._uib special requests\n        if (msg._uib) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._uib)) return\n\n            /** Process a client reload request from Node-RED - as the page is reloaded, everything else is ignored\n             * Note that msg._ui.reload is also actioned via the _ui processing below */\n            if (msg._uib.reload === true) {\n                log('trace', 'Uib:_msgRcvdEvents:_uib:reload', 'reloading')()\n                location.reload()\n                return\n            }\n\n            // Process msg._uib.command messages - allows Node-RED to run uibuilder FE functions\n            if (msg._uib.command) {\n                this._uibCommand(msg)\n                return\n            }\n\n            // Better to request via msg._ui - these are for backwards compatibility\n            if ( msg._uib.componentRef === 'globalNotification' ) {\n                _ui.showDialog('notify', msg._uib.options, msg)\n            }\n            if ( msg._uib.componentRef === 'globalAlert' ) {\n                _ui.showDialog('alert', msg._uib.options, msg)\n            }\n        }\n\n        // Handle msg._ui requests\n        if ( msg._ui ) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._ui)) return\n\n            log('trace', 'Uib:_msgRcvdEvents:_ui', 'Calling _uiManager')()\n            this._dispatchCustomEvent('uibuilder:msg:_ui', msg)\n            _ui._uiManager(msg)\n        }\n    } // --- end of _msgRcvdEvents ---\n\n    /** Callback handler for messages from Node-RED\n     * NOTE: `this` is the class here rather the `socket` as would be normal since we bind the correct `this` in the call.\n     *       Use this._socket if needing reference to the socket.\n     * @callback ioSetupFromServer Called from ioSetup/this._socket.on(this.#ioChannels.server, this.stdMsgFromServer.bind(this))\n     * @param {object} receivedMsg The msg object from Node-RED\n     * @this Uib\n     */\n    _stdMsgFromServer(receivedMsg) {\n\n        // Make sure that msg is an object & not null\n        receivedMsg = makeMeAnObject(receivedMsg, 'payload')\n\n        // Don't process if the inbound msg is not for us\n        if (receivedMsg._uib && !this._forThis(receivedMsg._uib)) return\n        if (receivedMsg._ui && !this._forThis(receivedMsg._ui)) return\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedMsg)\n\n        // Track how many messages have been received\n        this.set('msgsReceived', ++this.msgsReceived)\n\n        // Emit specific document events on msg receipt that make it easy for coders to use\n        this._msgRcvdEvents(receivedMsg)\n\n        if ( !('_ui' in receivedMsg && !('payload' in receivedMsg)) ) {\n            // Save the msg for further processing\n            this.set('msg', receivedMsg)\n        }\n\n        log('info', 'Uib:ioSetup:stdMsgFromServer', `Channel '${this._ioChannels.server}'. Received msg #${this.msgsReceived}.`, receivedMsg)()\n\n        // ! NOTE: Don't try to handle specialist messages here. See _msgRcvdEvents.\n\n    } // -- End of websocket receive DATA msg from Node-RED -- //\n\n    /** Handles original control msgs (not to be confused with \"new\" msg._uib controls)\n     * @param {*} receivedCtrlMsg The msg received on the socket.io control channel\n     */\n    _ctrlMsgFromServer(receivedCtrlMsg) {\n\n        // Make sure that msg is an object & not null\n        if (receivedCtrlMsg === null) {\n            receivedCtrlMsg = {}\n        } else if (typeof receivedCtrlMsg !== 'object') {\n            const msg = {}\n            msg['uibuilderCtrl:' + this._ioChannels.control] = receivedCtrlMsg\n            receivedCtrlMsg = msg\n        }\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedCtrlMsg)\n\n        this.set('ctrlMsg', receivedCtrlMsg)\n        this.set('msgsCtrlReceived', ++this.msgsCtrlReceived)\n\n        log('trace', 'Uib:ioSetup:_ctrlMsgFromServer', `Channel '${this._ioChannels.control}'. Received control msg #${this.msgsCtrlReceived}`, receivedCtrlMsg)()\n\n        /** Process control msg types */\n        switch (receivedCtrlMsg.uibuilderCtrl) {\n            // Node-RED is shutting down\n            case 'shutdown': {\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, '\u274C Received \"shutdown\" from server')()\n                this.set('serverShutdown', undefined)\n                break\n            }\n\n            /** We are connected to the server - 1st msg from server */\n            case 'client connect': {\n                log('trace', `Uib:ioSetup:${this._ioChannels.control}`, 'Received \"client connect\" from server')()\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, `\u2705 Server connected. Version: ${receivedCtrlMsg.version}\\nServer time: ${receivedCtrlMsg.serverTimestamp}, Sever time offset: ${this.serverTimeOffset} hours`)()\n\n                if ( !Uib._meta.version.startsWith(receivedCtrlMsg.version.split('-')[0]) ) {\n                    log('warn', `Uib:ioSetup:${this._ioChannels.control}`, `Server version (${receivedCtrlMsg.version}) not the same as the client version (${Uib._meta.version})`)()\n                }\n\n                if (this.autoSendReady === true) { // eslint-disable-line no-lonely-if\n                    log('trace', `Uib:ioSetup:${this._ioChannels.control}/client connect`, 'Auto-sending ready-for-content/replay msg to server')\n                    // @since 0.4.8c Add cacheControl property for use with node-red-contrib-infocache\n                    // @since 6.1.0 Don't bother, we use the \"client connect\" msg\n                    // this._send({\n                    //     'uibuilderCtrl': 'ready for content',\n                    //     'cacheControl': 'REPLAY',\n                    // }, this._ioChannels.control)\n                }\n\n                break\n            }\n\n            default: {\n                log('trace', `uibuilderfe:ioSetup:${this._ioChannels.control}`, `Received ${receivedCtrlMsg.uibuilderCtrl} from server`)\n                // Anything else to do for other control msgs?\n            }\n\n        } // ---- End of process control msg types ---- //\n\n    } // -- End of websocket receive CONTROL msg from Node-RED -- //\n\n    /** Send log text to uibuilder's beacon endpoint (works even if socket.io not connected)\n     * @param {string} txtToSend Text string to send\n     * @param {string|undefined} logLevel Log level to use. If not supplied, will default to debug\n     */\n    beaconLog(txtToSend, logLevel) {\n        if (!logLevel) logLevel = 'debug'\n        navigator.sendBeacon('./_clientLog', `${logLevel}::${txtToSend}`)\n    }\n\n    /** Send log info back to Node-RED over uibuilder's websocket control output (Port #2)\n     * @param {...*} arguments All arguments passed to the function are added to the msg.payload\n     */\n    logToServer() {\n        this.sendCtrl({\n            uibuilderCtrl: 'client log message',\n            payload: arguments,\n            // \"version\":\"6.1.0-iife.min\",\n            _socketId: this._socket.id,\n            // \"ip\":\"::1\",\n            clientId: this.clientId,\n            tabId: this.tabId,\n            // \"url\":\"esp-test\",\n            pageName: this.pageName,\n            connections: this.connectedNum,\n            lastNavType: this.lastNavType,\n        })\n    }\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Socket.IO -------- //\n\n    /** Return the Socket.IO namespace\n     * The cookie method is the most reliable but this falls back to trying to work it\n     * out from the URL if cookies not available. That won't work if page is in a sub-folder.\n     * since 2017-10-21 Improve method to cope with more complex paths - thanks to Steve Rickus @shrickus\n     * since 2017-11-10 v1.0.1 Check cookie first then url. cookie works even if the path is more complex (e.g. sub-folder)\n     * since 2020-01-25 Removed httpRoot from namespace to prevent proxy induced errors\n     * @returns {string} Socket.IO namespace\n     */\n    _getIOnamespace() {\n\n        let ioNamespace\n\n        /** Try getting the namespace cookie. */\n        ioNamespace = this.cookies['uibuilder-namespace']\n\n        // if it wasn't available, try using the current url path\n        if (ioNamespace === undefined || ioNamespace === '') {\n            // split url path & eliminate any blank elements, and trailing or double slashes\n            const u = window.location.pathname.split('/')\n                .filter(function (t) { return t.trim() !== '' })\n\n            /** since v2.0.5 Extra check for 0 length, Issue #73. since 2017-11-06 If the last element of the path is an .html file name, remove it */\n            if (u.length > 0 && (u[u.length - 1].endsWith('.html'))) u.pop()\n\n            // Get the last part of the url path, this MUST match the namespace in uibuilder\n            ioNamespace = u.pop()\n\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via url path: ${ioNamespace}`)()\n        } else {\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via cookie: ${ioNamespace}`)()\n        }\n\n        this.url = ioNamespace\n        // Namespace HAS to start with a /\n        ioNamespace = '/' + ioNamespace\n\n        log('trace', 'uibuilder.module.js:getIOnamespace', `Final Socket.IO namespace: ${ioNamespace}`)()\n\n        return ioNamespace\n    } // --- End of set IO namespace --- //\n\n    /** Function used to check whether Socket.IO is connected to the server, reconnect if not (recursive)\n     * @param {number} [delay] Initial delay before checking (ms). Default=2000ms\n     * @param {number} [factor] Multiplication factor for subsequent checks (delay*factor). Default=1.5\n     * @param {number} [depth] Recursion depth\n     * @returns {boolean|undefined} Whether or not Socket.IO is connected to uibuilder in Node-RED\n     */\n    _checkConnect(delay, factor, depth = 1) {\n        if ( navigator.onLine === false ) return // Don't bother if we know we are offline\n\n        if (!delay) delay = this.retryMs\n        if (!factor) factor = this.retryFactor\n\n        log('trace', 'Uib:checkConnect', `Checking connection. Connected: ${this._socket.connected}. Timer: ${this.#timerid}. Depth: ${depth}. Delay: ${delay}. Factor: ${factor}`, this._socket)()\n\n        // If we are connected ...\n        if (this._socket.connected === true) {\n            // Clear the setTimeout\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this.set('ioConnected', true)\n            this.set('socketError', null)\n            return true\n        }\n\n        // ... we aren't connected so:\n        this.set('ioConnected', false)\n\n        // we only want one running at a time\n        if (this.#timerid) window.clearTimeout(this.#timerid)\n\n        // Create the new timer\n        this.#timerid = window.setTimeout(() => {\n            log('warn', 'Uib:checkConnect:setTimeout', `Socket.IO reconnection attempt. Current delay: ${delay}. Depth: ${depth}`)()\n\n            // this is necessary sometimes when the socket fails to connect on startup\n            this._socket.close()\n\n            // Try to reconnect\n            this._socket.connect()\n\n            // don't need to check whether we have connected as the timer will have been cleared if we have\n            this.#timerid = null\n\n            // @ts-ignore Create new timer for next time round with extended delay\n            this._checkConnect(delay * factor, factor, depth++)\n        }, delay)\n\n        return false\n    } // --- End of checkConnect Fn--- //\n\n    // See message handling section for msg receipt handlers\n\n    /** Called by _ioSetup when Socket.IO connects to Node-RED */\n    _onConnect() {\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n        log('info', 'Uib:ioSetup', `\u2705 SOCKET CONNECTED. Connection count: ${this.connectedNum}, Is a Recovery?: ${this._socket.recovered}. \\nNamespace: ${this.ioNamespace}`)()\n        this._dispatchCustomEvent('uibuilder:socket:connected', { 'numConnections': this.connectedNum, 'isRecovery': this._socket.recovered })\n\n        this._checkConnect() // resets any reconnection timers & sets connected flag\n    }\n\n    /** Called by _ioSetup when Socket.IO disconnects from Node-RED\n     * @param {string} reason Disconnection title\n     */\n    _onDisconnect(reason) {\n        // reason === 'io server disconnect' - redeploy of Node instance\n        // reason === 'transport close' - Node-RED terminating\n        // reason === 'ping timeout' - didn't receive a pong response?\n        log('info', 'Uib:ioSetup:socket-disconnect', `\u26D4 Socket Disconnected. Reason: ${reason}`)()\n\n        this._dispatchCustomEvent('uibuilder:socket:disconnected', reason)\n\n        /** A workaround for SIO's failure to reconnect after a disconnection */\n        this._checkConnect()\n    }\n\n    /** Setup Socket.io\n     * since v2.0.0-beta2 Moved to a function and called by the user (uibuilder.start()) so that namespace & path can be passed manually if needed\n     * @returns {boolean} Attaches socket.io manager to self._socket and updates self.ioNamespace & self.ioPath as needed\n     */\n    _ioSetup() {\n\n        // Just a notification, actual load is done outside the class (see start of file)\n        if (io === undefined) {\n            log('error', 'Uib:ioSetup', 'Socket.IO client not loaded, Node-RED comms will not work')()\n            return false\n        }\n\n        // If socket is already set up, close it and remove all of the listeners\n        if (this._socket) {\n            log('trace', 'Uib:ioSetup', 'Removing listeners in preparation for redoing Socket.IO connections')()\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this._socket.close()\n            this._socket.offAny()\n            this._socket = undefined\n            this.set('ioConnected', false)\n        }\n\n        // Update the URL path to make sure we have the right one\n        this.socketOptions.path = this.ioPath\n\n        // NOTE: this._socket.auth is now set by callback and so automatically updated for each client (re)connection. No need to set here\n\n        // Create the socket - make sure client uses Socket.IO version from the uibuilder module (using path)\n        log('trace', 'Uib:ioSetup', `About to create IO object. Transports: [${this.socketOptions.transports.join(', ')}]`)()\n        this._socket = io(this.ioNamespace, this.socketOptions)\n\n        /** When the socket is connected - set ioConnected flag and reset connect timer  */\n        this._socket.on('connect', this._onConnect.bind(this))\n\n        // RECEIVE a STANDARD, non-control msg from Node-RED server\n        this._socket.on(this._ioChannels.server, this._stdMsgFromServer.bind(this))\n\n        // RECEIVE a CONTROL msg from Node-RED server - see also sendCtrl()\n        this._socket.on(this._ioChannels.control, this._ctrlMsgFromServer.bind(this))\n\n        // When the socket is disconnected ..............\n        this._socket.on('disconnect', this._onDisconnect.bind(this))\n\n        // Socket.io connection error - probably the wrong ioPath - or client is offline\n        this._socket.on('connect_error', (err) => {\n            if ( navigator.onLine === false ) return // Don't bother with an error if we know we are offline\n            log('error', 'Uib:ioSetup:connect_error', `\u274C Socket.IO Connect Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket connect error processing ---\n\n        // Socket.io error - from the server (socket.use middleware triggered an error response)\n        this._socket.on('error', (err) => {\n            log('error', 'Uib:ioSetup:error', `\u274C Socket.IO Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket error processing ---\n\n        // Ensure we are connected, retry if not\n        this._checkConnect()\n\n        return true\n\n        /* We really don't need these, just for interest\n            self._socket.io.on('packet', function onPacket(data){\n                // we get one of these for each REAL msg (not ping/pong)\n                console.debug('PACKET', data)\n            })\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n                //console.dir(self._socket)\n            }) // --- End of socket pong processing ---\n            self._socket.io.on('packet', function(data){\n                // We get one of these for actual messages, not ping/pong\n                console.debug('PACKET', data)\n            })\n            self._socket.on('connect_timeout', function(timeout) {\n                console.debug('SOCKET CONNECT TIMEOUT - Namespace: ' + ioNamespace + ', Timeout: ' + timeout)\n            }) // --- End of socket connect timeout processing ---\n            self._socket.on('reconnect', function(attemptNum) {\n                console.debug('SOCKET RECONNECTED - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect processing ---\n            self._socket.on('reconnect_attempt', function(attemptNum) {\n                console.debug('SOCKET RECONNECT ATTEMPT - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect_attempt processing ---\n            self._socket.on('reconnecting', function(attemptNum) {\n                console.debug('SOCKET RECONNECTING - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnecting processing ---\n            self._socket.on('reconnect_error', function(err) {\n                console.debug('SOCKET RECONNECT ERROR - Namespace: ' + ioNamespace + ', Reason: ' + err.message)\n                //console.dir(err)\n            }) // --- End of socket reconnect_error processing ---\n            self._socket.on('reconnect_failed', function() {\n                console.debug('SOCKET RECONNECT FAILED - Namespace: ' + ioNamespace)\n            }) // --- End of socket reconnect_failed processing ---\n            self._socket.on('ping', function() {\n                console.debug('SOCKET PING')\n            }) // --- End of socket ping processing ---\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n            }) // --- End of socket pong processing ---\n            */\n    } // ---- End of ioSetup ---- //\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Class construction & startup method -------- //\n\n    constructor() {\n        log('trace', 'Uib:constructor', 'Starting')()\n\n        // Track whether the client is online or offline\n        window.addEventListener('offline', (e) => {\n            this.set('online', false)\n            this.set('ioConnected', false)\n            log('warn', 'Browser', 'DISCONNECTED from network')()\n        })\n        window.addEventListener('online', (e) => {\n            this.set('online', true)\n            log('warn', 'Browser', 'Reconnected to network')()\n            this._checkConnect()\n        })\n\n        document.cookie.split(';').forEach((c) => {\n            const splitC = c.split('=')\n            this.cookies[splitC[0].trim()] = splitC[1]\n        })\n\n        /** Client ID set by uibuilder - lasts until browser profile is closed, applies to all tabs */\n        this.set('clientId', this.cookies['uibuilder-client-id'])\n        log('trace', 'Uib:constructor', 'Client ID: ', this.clientId)()\n\n        /** Tab ID - lasts while the tab is open (even if reloaded)\n         * WARNING: Duplicating a tab retains the same tabId\n         */\n        this.set('tabId', window.sessionStorage.getItem('tabId'))\n        if (!this.tabId) {\n            this.set('tabId', `t${Math.floor(Math.random() * 1000000)}`)\n            window.sessionStorage.setItem('tabId', this.tabId)\n        }\n\n        // document.addEventListener('pagehide', (event) => {\n        //     // console.log(`pagehide. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pagehide. From Cache?: ${event.persisted}`)\n        // })\n        // document.addEventListener('pageshow', (event) => {\n        //     // console.log(`pageshow. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pageshow. From Cache?: ${event.persisted}`)\n        // })\n        document.addEventListener('load', () => {\n            this.set('isVisible', true)\n        })\n        document.addEventListener('visibilitychange', () => {\n            // hidden=unload, minimise. visible=un-minimise (not fired on load)\n            this.set('isVisible', document.visibilityState === 'visible')\n            this.sendCtrl({ uibuilderCtrl: 'visibility', isVisible: this.isVisible })\n            // navigator.userActivation is experimental Chromium only\n            // console.log('visibilitychange', ':', `Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n            // navigator.sendBeacon('./_clientLog', `${(new Date()).toISOString()} Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n        })\n\n        // Set a listener to update showStatus table if it is active\n        document.addEventListener('uibuilder:propertyChanged', (event) => {\n            if (!this.#isShowStatus) return\n\n            // @ts-ignore\n            if (event.detail.prop in this.#showStatus) {\n                // @ts-ignore\n                document.querySelector(`td[data-vartype=\"${event.detail.prop}\"]`).innerText = JSON.stringify(event.detail.value)\n            }\n        })\n\n        this.set('ioNamespace', this._getIOnamespace())\n\n        //#region - Try to make sure client uses Socket.IO client version from the uibuilder module (using cookie or path) @since v2.0.0 2019-02-24 allows for httpNodeRoot\n\n        /** httpNodeRoot (to set path) */\n        if ('uibuilder-webRoot' in this.cookies) {\n            this.set('httpNodeRoot', this.cookies['uibuilder-webRoot'])\n            log('trace', 'Uib:constructor', `httpNodeRoot set by cookie to \"${this.httpNodeRoot}\"`)()\n        } else {\n            // split current url path, eliminate any blank elements and trailing or double slashes\n            const fullPath = window.location.pathname.split('/').filter(function (t) { return t.trim() !== '' })\n            /** handle url includes file name - @since v2.0.5 Extra check for 0 length, Issue #73. */\n            if (fullPath.length > 0 && fullPath[fullPath.length - 1].endsWith('.html')) fullPath.pop()\n            fullPath.pop() // gives the last path section of the url\n            this.set('httpNodeRoot', `/${fullPath.join('/')}`)\n            log('trace', '[Uib:constructor]', `httpNodeRoot set by URL parsing to \"${this.httpNodeRoot}\". NOTE: This may fail for pages in sub-folders.`)()\n        }\n        this.set('ioPath', urlJoin(this.httpNodeRoot, Uib._meta.displayName, 'vendor', 'socket.io'))\n        log('trace', 'Uib:constructor', `ioPath: \"${this.ioPath}\"`)()\n\n        //#endregion\n\n        // Work out pageName\n        this.set('pageName', window.location.pathname.replace(`${this.ioNamespace}/`, ''))\n        if ( this.pageName.endsWith('/') ) this.set('pageName', `${this.pageName}index.html`)\n        if ( this.pageName === '' ) this.set('pageName', 'index.html')\n\n        // Attempt to restore autoload variables\n        try {\n            const autoloadVars = this.getStore('_uibAutoloadVars')\n            if (Object.keys(autoloadVars).length > 0) {\n                Object.keys(autoloadVars).forEach( (id) => {\n                    this.set(id, this.getStore(id))\n                })\n            }\n        } catch (e) {}\n\n        this._dispatchCustomEvent('uibuilder:constructorComplete')\n\n        log('trace', 'Uib:constructor', 'Ending')()\n    }\n\n    /** Start up Socket.IO comms and listeners\n     * This has to be done separately because if running from a web page in a sub-folder of src/dist, uibuilder cannot\n     * necessarily work out the correct ioPath to use.\n     * Also, if cookies aren't permitted in the browser, both ioPath and ioNamespace may need to be specified.\n     * @param {object} [options] The start options object.\n     * @returns {void}\n     */\n    start(options) {\n        log('trace', 'Uib:start', 'Starting')()\n\n        // Cancel the msg event handler if already present\n        if ( this.#MsgHandler ) this.cancelChange('msg', this.#MsgHandler)\n\n        if (this.started === true) {\n            log('info', 'Uib:start', 'Start function already called. Resetting Socket.IO and msg handler.')()\n        }\n\n        log('log', 'Uib:start', 'Cookies: ', this.cookies, `\\nClient ID: ${this.clientId}`)()\n        log('trace', 'Uib:start', 'ioNamespace: ', this.ioNamespace, `\\nioPath: ${this.ioPath}`)()\n\n        // Handle options\n        if (options) {\n            if (options.ioNamespace !== undefined && options.ioNamespace !== null && options.ioNamespace !== '') this.set('ioNamespace', options.ioNamespace)\n            if (options.ioPath !== undefined && options.ioPath !== null && options.ioPath !== '') this.set('ioPath', options.ioPath)\n            // See below for handling of options.loadStylesheet\n        }\n\n        // Do we need to load styles?\n        if ( document.styleSheets.length >= 1 || (document.styleSheets.length === 1 && document.styleSheets[0].cssRules.length === 0) ) {\n            log('info', 'Uib:start', 'Styles already loaded so not loading uibuilder default styles.')()\n        } else {\n            if (options && options.loadStylesheet === false) log('info', 'Uib:start', 'No styles loaded & options.loadStylesheet === false.')()\n            else {\n                log('info', 'Uib:start', 'No styles loaded, loading uibuilder default styles.')()\n                this.loadStyleSrc(`${this.httpNodeRoot}/uibuilder/uib-brand.min.css`)\n            }\n        }\n\n        /** Handle specialist messages like reload and _ui -> Moved to _msgRcvdEvents */\n\n        // Track last browser navigation type: navigate, reload, back_forward, prerender\n        const [entry] = performance.getEntriesByType('navigation')\n        // @ts-ignore\n        this.set('lastNavType', entry.type)\n\n        // Start up (or restart) Socket.IO connections and listeners. Returns false if io not found\n        this.set('started', this._ioSetup())\n\n        if ( this.started === true ) {\n            log('trace', 'Uib:start', 'Start completed. Socket.IO client library loaded.')()\n        } else {\n            log('error', 'Uib:start', 'Start completed. ERROR: Socket.IO client library NOT LOADED.')()\n        }\n\n        // Watch for URL hash changes in case using a front-end router. Updates watched var `urlHash` and socket.io `auth.urlHash`\n        this._watchHashChanges()\n\n        // Check if Vue is present (used for dynamic UI processing)\n        if (window['Vue']) {\n            this.set('isVue', true)\n            try {\n                this.set('vueVersion', window['Vue'].version)\n            } catch (e) { }\n            log('trace', 'Uib:start', `VueJS is loaded. Version: ${this.vueVersion}`)()\n        } else {\n            log('trace', 'Uib:start', 'VueJS is not loaded.')()\n        }\n\n        // Check if DOMPurify library is loaded\n        if (window['DOMPurify']) {\n            this.set('purify', true)\n            log('trace', 'Uib:start', 'DOMPurify is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'DOMPurify is not loaded.')()\n        }\n        // Check if Markdown-IT library is loaded\n        if (window['markdownit']) {\n            this.set('markdown', true)\n            log('trace', 'Uib:start', 'Markdown-IT is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'Markdown-IT is not loaded.')()\n        }\n\n        // if (window['DOMPurify']) {\n        //     this.set('purify', true)\n        //     log('trace', 'Uib:start', 'DOMPurify is loaded.')\n        // } else {\n        //     log('trace', 'Uib:start', 'DOMPurify is not loaded.')\n        // }\n\n        // Set up msg listener for the optional showMsg\n        this.onChange('msg', (msg) => {\n            if (this.#isShowMsg === true) {\n                const eMsg = document.getElementById('uib_last_msg')\n                if (eMsg) eMsg.innerHTML = this.syntaxHighlight(msg)\n            }\n        })\n\n        this._dispatchCustomEvent('uibuilder:startComplete')\n    }\n\n    //#endregion -------- ------------ -------- //\n} // ==== End of Class Uib ====\n\n//#region --- Wrap up - get things started ---\n\n// Create an instance (we will only ever want one)\nconst uibuilder = new Uib()\n\n// Assign reference to the instance to the global `window` object\n// Only useful if loading via <script> tag - prefer loading via `import uibuilder from ...`\nif (!window['uibuilder']) {\n    window['uibuilder'] = uibuilder\n} else {\n    log('error', 'uibuilder.module.js', '`uibuilder` already assigned to window. Have you tried to load it more than once?')\n}\nif (!window['uib']) {\n    window['uib'] = uibuilder\n} else {\n    log('warn', 'uibuilder.module.js', '`uib` shortcut already assigned to window.')\n}\n\n// Assign `$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$`.\nif (!window['$']) {\n    /** @type {HTMLElement} */\n    window['$'] = window['uibuilder'].$ // document.querySelector.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` instead.')\n}\n// Assign `$$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$$']) {\n    /** @type {HTMLElement} */\n    window['$$'] = window['uibuilder'].$$ // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` instead.')\n}\n\n// Can import as `import uibuilder from ...` OR `import {uibuilder} from ...`\nexport { uibuilder }\nexport default uibuilder\n\n// Attempt to run start fn\nuibuilder.start()\n\n// Add the class as a new Custom Element to the window object\ncustomElements.define('uib-var', UibVar)\n\n//#endregion --- Wrap up ---\n\n// EOF\n", "/** A zero dependency web component that will display a managed uibuilder variable.\n *\n * Version: 0.0.1 2023-10-07\n *\n * ToDo:\n * -\n */\n/*\n  Copyright (c) 2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n// const template = document.createElement('template')\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<link type=\"text/css\" rel=\"stylesheet\" href=\"\"../uibuilder/uib-brand.min.css\"\" media=\"all\"><span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`\n// {/* <style>@import url(\"../uibuilder/uib-brand.min.css\");</style><span></span> */}\n// `\n\nexport default class UibVar extends HTMLElement {\n    //#region --- Class Properties ---\n    /** @type {string} Name of the uibuilder mangaged variable to use */\n    variable\n    /** Current value of the watched variable */\n    value\n    /** Whether to output if the variable is undefined */\n    undefined = false\n    /** Whether to send update value to Node-RED on change */\n    report = false\n    /** What is the value type */\n    type = 'plain'\n    /** what are the available types? */\n    types = ['plain', 'html', 'markdown', 'object']\n\n    /** Mini jQuery-like shadow dom selector (see constructor) */\n    $\n    \n    /** Holds a count of how many instances of this component are on the page */\n    static _iCount = 0\n    /** @type {Array<string>} List of all of the html attribs (props) listened to */\n    static props = ['name', 'id', 'variable', 'undefined', 'report', 'type']\n    //#endregion --- Class Properties ---\n\n    constructor() {\n        super()\n        this.shadow = this.attachShadow({ mode: 'open', delegatesFocus: true })\n            // .append(template.content.cloneNode(true))\n\n        this.$ = this.shadowRoot.querySelector.bind(this.shadowRoot)\n\n        // Apply external styles to the shadow dom\n        this.css = document.createElement(\"link\")\n        this.css.setAttribute(\"type\", \"text/css\")\n        this.css.setAttribute(\"rel\", \"stylesheet\")\n        this.css.setAttribute(\"href\", \"../uibuilder/uib-brand.min.css\")\n\n        this.dispatchEvent(new Event(`uib-var:construction`, { bubbles: true, composed: true }))\n    }\n\n    // Makes HTML attribute change watched\n    static get observedAttributes() {\n        return UibVar.props\n    }\n\n    /** NOTE: On initial startup, this is called for each watched attrib set in HTML - BEFORE connectedCallback is called  */\n    attributeChangedCallback(attrib, oldVal, newVal) {\n        if ( oldVal === newVal ) return\n\n        switch (attrib) {\n            case 'variable': {\n                if (newVal === '') throw new Error('[uib-var] Attribute \"variable\" MUST be set to a UIBUILDER managed variable name')\n                this.variable = newVal\n                this.doWatch()\n                break\n            }\n            case 'undefined': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.undefined = true\n                else this.undefined = false\n                break\n            }\n            case 'report': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.report = true\n                else this.report = false\n                break\n            }\n            case 'type': {\n                if (newVal === '' || !this.types.includes(newVal.toLowerCase())) this.type = 'plain'\n                else this.type = newVal\n                break\n            }\n\n            default: {\n                this[attrib] = newVal\n                break\n            }\n        }\n    } // --- end of attributeChangedCallback --- //\n\n    // Runs when an instance is added to the DOM\n    connectedCallback() {\n        // Make sure instance has an ID. Create an id from name or calculation if needed\n        if (!this.id) {\n            if (!this.name) this.name = this.getAttribute('name')\n            if (this.name) this.id = this.name.toLowerCase().replace(/\\s/g, '_')\n            else this.id = `uib-var-${++UibVar._iCount}`\n        }\n    }  // ---- end of connectedCallback ---- //\n\n    // Runs when an instance is removed from the DOM\n    // disconnectedCallback() {} // ---- end of disconnectedCallback ---- //\n\n    /** Process changes to the required uibuilder variable */\n    doWatch() {\n        if (!this.variable) throw new Error('No variable name provided')\n        // if (!window['uibuilder']) throw new Error('UIBUILDER client library not loaded - this component must be loaded AFTER the UIBUILDER library')\n\n        this.value = window['uibuilder'].get(this.variable)\n        this.varDom()\n\n        // Watch for changes in the variable\n        window['uibuilder'].onChange(this.variable, (val) => {\n            this.value = val\n            this.varDom()\n            if (this.report === true) window['uibuilder'].send({topic: this.variable, payload: this.value || undefined})\n        })\n    }\n\n    /** Convert this.value to DOM output */\n    varDom() {\n        // If user doesn't want to show undefined vars, allow the component slot to show instead\n        if (this.value === undefined && this.undefined !== true) { \n            this.shadow.innerHTML = '<slot></slot>'\n            return\n        }\n        \n        let val = this.value\n\n        // console.log('\uD83E\uDDEA varDOM: ', val, typeof val, this.type)\n\n        switch (this.type) {\n            case 'markdown': {\n                this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(window['uibuilder'].convertMarkdown(val))\n                break\n            }\n        \n            case 'object': {\n                // console.log(window['uibuilder'].syntaxHighlight(val))\n                this.shadow.innerHTML = `<pre class=\"syntax-highlight\">${window['uibuilder'].syntaxHighlight(val)}</pre>`\n                break\n            }\n        \n            case 'plain':\n            case 'html':\n            default: {\n                const t = typeof val\n                if (Array.isArray(val) || t === '[object Object]' || t === 'object') {\n                    try {\n                        this.shadow.innerHTML = JSON.stringify(val)\n                    } catch (e) {\n                        this.shadow.innerHTML = val\n                    }\n                } else {\n                    this.shadow.innerHTML = val\n                }\n                break\n            }\n        }\n\n        this.shadow.appendChild(this.css)\n        // this.$('span').innerHTML = window['uibuilder'].sanitiseHTML(val)\n        // this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(val)\n    }\n}\n\n// Add the class as a new Custom Element to the window object \n// customElements.define('uib-var', UibVar)\n", "const PACKET_TYPES = Object.create(null); // no Map = no polyfill\nPACKET_TYPES[\"open\"] = \"0\";\nPACKET_TYPES[\"close\"] = \"1\";\nPACKET_TYPES[\"ping\"] = \"2\";\nPACKET_TYPES[\"pong\"] = \"3\";\nPACKET_TYPES[\"message\"] = \"4\";\nPACKET_TYPES[\"upgrade\"] = \"5\";\nPACKET_TYPES[\"noop\"] = \"6\";\nconst PACKET_TYPES_REVERSE = Object.create(null);\nObject.keys(PACKET_TYPES).forEach(key => {\n    PACKET_TYPES_REVERSE[PACKET_TYPES[key]] = key;\n});\nconst ERROR_PACKET = { type: \"error\", data: \"parser error\" };\nexport { PACKET_TYPES, PACKET_TYPES_REVERSE, ERROR_PACKET };\n", "import { PACKET_TYPES } from \"./commons.js\";\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        Object.prototype.toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\n// ArrayBuffer.isView method is not defined in IE10\nconst isView = obj => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj && obj.buffer instanceof ArrayBuffer;\n};\nconst encodePacket = ({ type, data }, supportsBinary, callback) => {\n    if (withNativeBlob && data instanceof Blob) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(data, callback);\n        }\n    }\n    else if (withNativeArrayBuffer &&\n        (data instanceof ArrayBuffer || isView(data))) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(new Blob([data]), callback);\n        }\n    }\n    // plain string\n    return callback(PACKET_TYPES[type] + (data || \"\"));\n};\nconst encodeBlobAsBase64 = (data, callback) => {\n    const fileReader = new FileReader();\n    fileReader.onload = function () {\n        const content = fileReader.result.split(\",\")[1];\n        callback(\"b\" + (content || \"\"));\n    };\n    return fileReader.readAsDataURL(data);\n};\nfunction toArray(data) {\n    if (data instanceof Uint8Array) {\n        return data;\n    }\n    else if (data instanceof ArrayBuffer) {\n        return new Uint8Array(data);\n    }\n    else {\n        return new Uint8Array(data.buffer, data.byteOffset, data.byteLength);\n    }\n}\nlet TEXT_ENCODER;\nexport function encodePacketToBinary(packet, callback) {\n    if (withNativeBlob && packet.data instanceof Blob) {\n        return packet.data\n            .arrayBuffer()\n            .then(toArray)\n            .then(callback);\n    }\n    else if (withNativeArrayBuffer &&\n        (packet.data instanceof ArrayBuffer || isView(packet.data))) {\n        return callback(toArray(packet.data));\n    }\n    encodePacket(packet, false, encoded => {\n        if (!TEXT_ENCODER) {\n            TEXT_ENCODER = new TextEncoder();\n        }\n        callback(TEXT_ENCODER.encode(encoded));\n    });\n}\nexport { encodePacket };\n", "// imported from https://github.com/socketio/base64-arraybuffer\nconst chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';\n// Use a lookup table to find the index.\nconst lookup = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);\nfor (let i = 0; i < chars.length; i++) {\n    lookup[chars.charCodeAt(i)] = i;\n}\nexport const encode = (arraybuffer) => {\n    let bytes = new Uint8Array(arraybuffer), i, len = bytes.length, base64 = '';\n    for (i = 0; i < len; i += 3) {\n        base64 += chars[bytes[i] >> 2];\n        base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];\n        base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];\n        base64 += chars[bytes[i + 2] & 63];\n    }\n    if (len % 3 === 2) {\n        base64 = base64.substring(0, base64.length - 1) + '=';\n    }\n    else if (len % 3 === 1) {\n        base64 = base64.substring(0, base64.length - 2) + '==';\n    }\n    return base64;\n};\nexport const decode = (base64) => {\n    let bufferLength = base64.length * 0.75, len = base64.length, i, p = 0, encoded1, encoded2, encoded3, encoded4;\n    if (base64[base64.length - 1] === '=') {\n        bufferLength--;\n        if (base64[base64.length - 2] === '=') {\n            bufferLength--;\n        }\n    }\n    const arraybuffer = new ArrayBuffer(bufferLength), bytes = new Uint8Array(arraybuffer);\n    for (i = 0; i < len; i += 4) {\n        encoded1 = lookup[base64.charCodeAt(i)];\n        encoded2 = lookup[base64.charCodeAt(i + 1)];\n        encoded3 = lookup[base64.charCodeAt(i + 2)];\n        encoded4 = lookup[base64.charCodeAt(i + 3)];\n        bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n        bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n        bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n    }\n    return arraybuffer;\n};\n", "import { ERROR_PACKET, PACKET_TYPES_REVERSE } from \"./commons.js\";\nimport { decode } from \"./contrib/base64-arraybuffer.js\";\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nexport const decodePacket = (encodedPacket, binaryType) => {\n    if (typeof encodedPacket !== \"string\") {\n        return {\n            type: \"message\",\n            data: mapBinary(encodedPacket, binaryType)\n        };\n    }\n    const type = encodedPacket.charAt(0);\n    if (type === \"b\") {\n        return {\n            type: \"message\",\n            data: decodeBase64Packet(encodedPacket.substring(1), binaryType)\n        };\n    }\n    const packetType = PACKET_TYPES_REVERSE[type];\n    if (!packetType) {\n        return ERROR_PACKET;\n    }\n    return encodedPacket.length > 1\n        ? {\n            type: PACKET_TYPES_REVERSE[type],\n            data: encodedPacket.substring(1)\n        }\n        : {\n            type: PACKET_TYPES_REVERSE[type]\n        };\n};\nconst decodeBase64Packet = (data, binaryType) => {\n    if (withNativeArrayBuffer) {\n        const decoded = decode(data);\n        return mapBinary(decoded, binaryType);\n    }\n    else {\n        return { base64: true, data }; // fallback for old browsers\n    }\n};\nconst mapBinary = (data, binaryType) => {\n    switch (binaryType) {\n        case \"blob\":\n            if (data instanceof Blob) {\n                // from WebSocket + binaryType \"blob\"\n                return data;\n            }\n            else {\n                // from HTTP long-polling or WebTransport\n                return new Blob([data]);\n            }\n        case \"arraybuffer\":\n        default:\n            if (data instanceof ArrayBuffer) {\n                // from HTTP long-polling (base64) or WebSocket + binaryType \"arraybuffer\"\n                return data;\n            }\n            else {\n                // from WebTransport (Uint8Array)\n                return data.buffer;\n            }\n    }\n};\n", "import { encodePacket, encodePacketToBinary } from \"./encodePacket.js\";\nimport { decodePacket } from \"./decodePacket.js\";\nimport { ERROR_PACKET } from \"./commons.js\";\nconst SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text\nconst encodePayload = (packets, callback) => {\n    // some packets may be added to the array while encoding, so the initial length must be saved\n    const length = packets.length;\n    const encodedPackets = new Array(length);\n    let count = 0;\n    packets.forEach((packet, i) => {\n        // force base64 encoding for binary packets\n        encodePacket(packet, false, encodedPacket => {\n            encodedPackets[i] = encodedPacket;\n            if (++count === length) {\n                callback(encodedPackets.join(SEPARATOR));\n            }\n        });\n    });\n};\nconst decodePayload = (encodedPayload, binaryType) => {\n    const encodedPackets = encodedPayload.split(SEPARATOR);\n    const packets = [];\n    for (let i = 0; i < encodedPackets.length; i++) {\n        const decodedPacket = decodePacket(encodedPackets[i], binaryType);\n        packets.push(decodedPacket);\n        if (decodedPacket.type === \"error\") {\n            break;\n        }\n    }\n    return packets;\n};\nexport function createPacketEncoderStream() {\n    return new TransformStream({\n        transform(packet, controller) {\n            encodePacketToBinary(packet, encodedPacket => {\n                const payloadLength = encodedPacket.length;\n                let header;\n                // inspired by the WebSocket format: https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API/Writing_WebSocket_servers#decoding_payload_length\n                if (payloadLength < 126) {\n                    header = new Uint8Array(1);\n                    new DataView(header.buffer).setUint8(0, payloadLength);\n                }\n                else if (payloadLength < 65536) {\n                    header = new Uint8Array(3);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 126);\n                    view.setUint16(1, payloadLength);\n                }\n                else {\n                    header = new Uint8Array(9);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 127);\n                    view.setBigUint64(1, BigInt(payloadLength));\n                }\n                // first bit indicates whether the payload is plain text (0) or binary (1)\n                if (packet.data && typeof packet.data !== \"string\") {\n                    header[0] |= 0x80;\n                }\n                controller.enqueue(header);\n                controller.enqueue(encodedPacket);\n            });\n        }\n    });\n}\nlet TEXT_DECODER;\nfunction totalLength(chunks) {\n    return chunks.reduce((acc, chunk) => acc + chunk.length, 0);\n}\nfunction concatChunks(chunks, size) {\n    if (chunks[0].length === size) {\n        return chunks.shift();\n    }\n    const buffer = new Uint8Array(size);\n    let j = 0;\n    for (let i = 0; i < size; i++) {\n        buffer[i] = chunks[0][j++];\n        if (j === chunks[0].length) {\n            chunks.shift();\n            j = 0;\n        }\n    }\n    if (chunks.length && j < chunks[0].length) {\n        chunks[0] = chunks[0].slice(j);\n    }\n    return buffer;\n}\nexport function createPacketDecoderStream(maxPayload, binaryType) {\n    if (!TEXT_DECODER) {\n        TEXT_DECODER = new TextDecoder();\n    }\n    const chunks = [];\n    let state = 0 /* READ_HEADER */;\n    let expectedLength = -1;\n    let isBinary = false;\n    return new TransformStream({\n        transform(chunk, controller) {\n            chunks.push(chunk);\n            while (true) {\n                if (state === 0 /* READ_HEADER */) {\n                    if (totalLength(chunks) < 1) {\n                        break;\n                    }\n                    const header = concatChunks(chunks, 1);\n                    isBinary = (header[0] & 0x80) === 0x80;\n                    expectedLength = header[0] & 0x7f;\n                    if (expectedLength < 126) {\n                        state = 3 /* READ_PAYLOAD */;\n                    }\n                    else if (expectedLength === 126) {\n                        state = 1 /* READ_EXTENDED_LENGTH_16 */;\n                    }\n                    else {\n                        state = 2 /* READ_EXTENDED_LENGTH_64 */;\n                    }\n                }\n                else if (state === 1 /* READ_EXTENDED_LENGTH_16 */) {\n                    if (totalLength(chunks) < 2) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 2);\n                    expectedLength = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length).getUint16(0);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else if (state === 2 /* READ_EXTENDED_LENGTH_64 */) {\n                    if (totalLength(chunks) < 8) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 8);\n                    const view = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length);\n                    const n = view.getUint32(0);\n                    if (n > Math.pow(2, 53 - 32) - 1) {\n                        // the maximum safe integer in JavaScript is 2^53 - 1\n                        controller.enqueue(ERROR_PACKET);\n                        break;\n                    }\n                    expectedLength = n * Math.pow(2, 32) + view.getUint32(4);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else {\n                    if (totalLength(chunks) < expectedLength) {\n                        break;\n                    }\n                    const data = concatChunks(chunks, expectedLength);\n                    controller.enqueue(decodePacket(isBinary ? data : TEXT_DECODER.decode(data), binaryType));\n                    state = 0 /* READ_HEADER */;\n                }\n                if (expectedLength === 0 || expectedLength > maxPayload) {\n                    controller.enqueue(ERROR_PACKET);\n                    break;\n                }\n            }\n        }\n    });\n}\nexport const protocol = 4;\nexport { encodePacket, encodePayload, decodePacket, decodePayload };\n", "/**\n * Initialize a new `Emitter`.\n *\n * @api public\n */\n\nexport function Emitter(obj) {\n  if (obj) return mixin(obj);\n}\n\n/**\n * Mixin the emitter properties.\n *\n * @param {Object} obj\n * @return {Object}\n * @api private\n */\n\nfunction mixin(obj) {\n  for (var key in Emitter.prototype) {\n    obj[key] = Emitter.prototype[key];\n  }\n  return obj;\n}\n\n/**\n * Listen on the given `event` with `fn`.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.on =\nEmitter.prototype.addEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])\n    .push(fn);\n  return this;\n};\n\n/**\n * Adds an `event` listener that will be invoked a single\n * time then automatically removed.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.once = function(event, fn){\n  function on() {\n    this.off(event, on);\n    fn.apply(this, arguments);\n  }\n\n  on.fn = fn;\n  this.on(event, on);\n  return this;\n};\n\n/**\n * Remove the given callback for `event` or all\n * registered callbacks.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.off =\nEmitter.prototype.removeListener =\nEmitter.prototype.removeAllListeners =\nEmitter.prototype.removeEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n\n  // all\n  if (0 == arguments.length) {\n    this._callbacks = {};\n    return this;\n  }\n\n  // specific event\n  var callbacks = this._callbacks['$' + event];\n  if (!callbacks) return this;\n\n  // remove all handlers\n  if (1 == arguments.length) {\n    delete this._callbacks['$' + event];\n    return this;\n  }\n\n  // remove specific handler\n  var cb;\n  for (var i = 0; i < callbacks.length; i++) {\n    cb = callbacks[i];\n    if (cb === fn || cb.fn === fn) {\n      callbacks.splice(i, 1);\n      break;\n    }\n  }\n\n  // Remove event specific arrays for event types that no\n  // one is subscribed for to avoid memory leak.\n  if (callbacks.length === 0) {\n    delete this._callbacks['$' + event];\n  }\n\n  return this;\n};\n\n/**\n * Emit `event` with the given args.\n *\n * @param {String} event\n * @param {Mixed} ...\n * @return {Emitter}\n */\n\nEmitter.prototype.emit = function(event){\n  this._callbacks = this._callbacks || {};\n\n  var args = new Array(arguments.length - 1)\n    , callbacks = this._callbacks['$' + event];\n\n  for (var i = 1; i < arguments.length; i++) {\n    args[i - 1] = arguments[i];\n  }\n\n  if (callbacks) {\n    callbacks = callbacks.slice(0);\n    for (var i = 0, len = callbacks.length; i < len; ++i) {\n      callbacks[i].apply(this, args);\n    }\n  }\n\n  return this;\n};\n\n// alias used for reserved events (protected method)\nEmitter.prototype.emitReserved = Emitter.prototype.emit;\n\n/**\n * Return array of callbacks for `event`.\n *\n * @param {String} event\n * @return {Array}\n * @api public\n */\n\nEmitter.prototype.listeners = function(event){\n  this._callbacks = this._callbacks || {};\n  return this._callbacks['$' + event] || [];\n};\n\n/**\n * Check if this emitter has `event` handlers.\n *\n * @param {String} event\n * @return {Boolean}\n * @api public\n */\n\nEmitter.prototype.hasListeners = function(event){\n  return !! this.listeners(event).length;\n};\n", "export const globalThisShim = (() => {\n    if (typeof self !== \"undefined\") {\n        return self;\n    }\n    else if (typeof window !== \"undefined\") {\n        return window;\n    }\n    else {\n        return Function(\"return this\")();\n    }\n})();\n", "import { globalThisShim as globalThis } from \"./globalThis.js\";\nexport function pick(obj, ...attr) {\n    return attr.reduce((acc, k) => {\n        if (obj.hasOwnProperty(k)) {\n            acc[k] = obj[k];\n        }\n        return acc;\n    }, {});\n}\n// Keep a reference to the real timeout functions so they can be used when overridden\nconst NATIVE_SET_TIMEOUT = globalThis.setTimeout;\nconst NATIVE_CLEAR_TIMEOUT = globalThis.clearTimeout;\nexport function installTimerFunctions(obj, opts) {\n    if (opts.useNativeTimers) {\n        obj.setTimeoutFn = NATIVE_SET_TIMEOUT.bind(globalThis);\n        obj.clearTimeoutFn = NATIVE_CLEAR_TIMEOUT.bind(globalThis);\n    }\n    else {\n        obj.setTimeoutFn = globalThis.setTimeout.bind(globalThis);\n        obj.clearTimeoutFn = globalThis.clearTimeout.bind(globalThis);\n    }\n}\n// base64 encoded buffers are about 33% bigger (https://en.wikipedia.org/wiki/Base64)\nconst BASE64_OVERHEAD = 1.33;\n// we could also have used `new Blob([obj]).size`, but it isn't supported in IE9\nexport function byteLength(obj) {\n    if (typeof obj === \"string\") {\n        return utf8Length(obj);\n    }\n    // arraybuffer or blob\n    return Math.ceil((obj.byteLength || obj.size) * BASE64_OVERHEAD);\n}\nfunction utf8Length(str) {\n    let c = 0, length = 0;\n    for (let i = 0, l = str.length; i < l; i++) {\n        c = str.charCodeAt(i);\n        if (c < 0x80) {\n            length += 1;\n        }\n        else if (c < 0x800) {\n            length += 2;\n        }\n        else if (c < 0xd800 || c >= 0xe000) {\n            length += 3;\n        }\n        else {\n            i++;\n            length += 4;\n        }\n    }\n    return length;\n}\n", "// imported from https://github.com/galkn/querystring\n/**\n * Compiles a querystring\n * Returns string representation of the object\n *\n * @param {Object}\n * @api private\n */\nexport function encode(obj) {\n    let str = '';\n    for (let i in obj) {\n        if (obj.hasOwnProperty(i)) {\n            if (str.length)\n                str += '&';\n            str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);\n        }\n    }\n    return str;\n}\n/**\n * Parses a simple querystring into an object\n *\n * @param {String} qs\n * @api private\n */\nexport function decode(qs) {\n    let qry = {};\n    let pairs = qs.split('&');\n    for (let i = 0, l = pairs.length; i < l; i++) {\n        let pair = pairs[i].split('=');\n        qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);\n    }\n    return qry;\n}\n", "import { decodePacket } from \"engine.io-parser\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions } from \"./util.js\";\nimport { encode } from \"./contrib/parseqs.js\";\nexport class TransportError extends Error {\n    constructor(reason, description, context) {\n        super(reason);\n        this.description = description;\n        this.context = context;\n        this.type = \"TransportError\";\n    }\n}\nexport class Transport extends Emitter {\n    /**\n     * Transport abstract constructor.\n     *\n     * @param {Object} opts - options\n     * @protected\n     */\n    constructor(opts) {\n        super();\n        this.writable = false;\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.query = opts.query;\n        this.socket = opts.socket;\n    }\n    /**\n     * Emits an error.\n     *\n     * @param {String} reason\n     * @param description\n     * @param context - the error context\n     * @return {Transport} for chaining\n     * @protected\n     */\n    onError(reason, description, context) {\n        super.emitReserved(\"error\", new TransportError(reason, description, context));\n        return this;\n    }\n    /**\n     * Opens the transport.\n     */\n    open() {\n        this.readyState = \"opening\";\n        this.doOpen();\n        return this;\n    }\n    /**\n     * Closes the transport.\n     */\n    close() {\n        if (this.readyState === \"opening\" || this.readyState === \"open\") {\n            this.doClose();\n            this.onClose();\n        }\n        return this;\n    }\n    /**\n     * Sends multiple packets.\n     *\n     * @param {Array} packets\n     */\n    send(packets) {\n        if (this.readyState === \"open\") {\n            this.write(packets);\n        }\n        else {\n            // this might happen if the transport was silently closed in the beforeunload event handler\n        }\n    }\n    /**\n     * Called upon open\n     *\n     * @protected\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        this.writable = true;\n        super.emitReserved(\"open\");\n    }\n    /**\n     * Called with data.\n     *\n     * @param {String} data\n     * @protected\n     */\n    onData(data) {\n        const packet = decodePacket(data, this.socket.binaryType);\n        this.onPacket(packet);\n    }\n    /**\n     * Called with a decoded packet.\n     *\n     * @protected\n     */\n    onPacket(packet) {\n        super.emitReserved(\"packet\", packet);\n    }\n    /**\n     * Called upon close.\n     *\n     * @protected\n     */\n    onClose(details) {\n        this.readyState = \"closed\";\n        super.emitReserved(\"close\", details);\n    }\n    /**\n     * Pauses the transport, in order not to lose packets during an upgrade.\n     *\n     * @param onPause\n     */\n    pause(onPause) { }\n    createUri(schema, query = {}) {\n        return (schema +\n            \"://\" +\n            this._hostname() +\n            this._port() +\n            this.opts.path +\n            this._query(query));\n    }\n    _hostname() {\n        const hostname = this.opts.hostname;\n        return hostname.indexOf(\":\") === -1 ? hostname : \"[\" + hostname + \"]\";\n    }\n    _port() {\n        if (this.opts.port &&\n            ((this.opts.secure && Number(this.opts.port !== 443)) ||\n                (!this.opts.secure && Number(this.opts.port) !== 80))) {\n            return \":\" + this.opts.port;\n        }\n        else {\n            return \"\";\n        }\n    }\n    _query(query) {\n        const encodedQuery = encode(query);\n        return encodedQuery.length ? \"?\" + encodedQuery : \"\";\n    }\n}\n", "// imported from https://github.com/unshiftio/yeast\n'use strict';\nconst alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split(''), length = 64, map = {};\nlet seed = 0, i = 0, prev;\n/**\n * Return a string representing the specified number.\n *\n * @param {Number} num The number to convert.\n * @returns {String} The string representation of the number.\n * @api public\n */\nexport function encode(num) {\n    let encoded = '';\n    do {\n        encoded = alphabet[num % length] + encoded;\n        num = Math.floor(num / length);\n    } while (num > 0);\n    return encoded;\n}\n/**\n * Return the integer value specified by the given string.\n *\n * @param {String} str The string to convert.\n * @returns {Number} The integer value represented by the string.\n * @api public\n */\nexport function decode(str) {\n    let decoded = 0;\n    for (i = 0; i < str.length; i++) {\n        decoded = decoded * length + map[str.charAt(i)];\n    }\n    return decoded;\n}\n/**\n * Yeast: A tiny growing id generator.\n *\n * @returns {String} A unique id.\n * @api public\n */\nexport function yeast() {\n    const now = encode(+new Date());\n    if (now !== prev)\n        return seed = 0, prev = now;\n    return now + '.' + encode(seed++);\n}\n//\n// Map each character to its index.\n//\nfor (; i < length; i++)\n    map[alphabet[i]] = i;\n", "// imported from https://github.com/component/has-cors\nlet value = false;\ntry {\n    value = typeof XMLHttpRequest !== 'undefined' &&\n        'withCredentials' in new XMLHttpRequest();\n}\ncatch (err) {\n    // if XMLHttp support is disabled in IE then it will throw\n    // when trying to create\n}\nexport const hasCORS = value;\n", "// browser shim for xmlhttprequest module\nimport { hasCORS } from \"../contrib/has-cors.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nexport function XHR(opts) {\n    const xdomain = opts.xdomain;\n    // XMLHttpRequest can be disabled on IE\n    try {\n        if (\"undefined\" !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {\n            return new XMLHttpRequest();\n        }\n    }\n    catch (e) { }\n    if (!xdomain) {\n        try {\n            return new globalThis[[\"Active\"].concat(\"Object\").join(\"X\")](\"Microsoft.XMLHTTP\");\n        }\n        catch (e) { }\n    }\n}\nexport function createCookieJar() { }\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { encodePayload, decodePayload } from \"engine.io-parser\";\nimport { createCookieJar, XHR as XMLHttpRequest, } from \"./xmlhttprequest.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions, pick } from \"../util.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nfunction empty() { }\nconst hasXHR2 = (function () {\n    const xhr = new XMLHttpRequest({\n        xdomain: false,\n    });\n    return null != xhr.responseType;\n})();\nexport class Polling extends Transport {\n    /**\n     * XHR Polling constructor.\n     *\n     * @param {Object} opts\n     * @package\n     */\n    constructor(opts) {\n        super(opts);\n        this.polling = false;\n        if (typeof location !== \"undefined\") {\n            const isSSL = \"https:\" === location.protocol;\n            let port = location.port;\n            // some user agents have empty `location.port`\n            if (!port) {\n                port = isSSL ? \"443\" : \"80\";\n            }\n            this.xd =\n                (typeof location !== \"undefined\" &&\n                    opts.hostname !== location.hostname) ||\n                    port !== opts.port;\n        }\n        /**\n         * XHR supports binary\n         */\n        const forceBase64 = opts && opts.forceBase64;\n        this.supportsBinary = hasXHR2 && !forceBase64;\n        if (this.opts.withCredentials) {\n            this.cookieJar = createCookieJar();\n        }\n    }\n    get name() {\n        return \"polling\";\n    }\n    /**\n     * Opens the socket (triggers polling). We write a PING message to determine\n     * when the transport is open.\n     *\n     * @protected\n     */\n    doOpen() {\n        this.poll();\n    }\n    /**\n     * Pauses polling.\n     *\n     * @param {Function} onPause - callback upon buffers are flushed and transport is paused\n     * @package\n     */\n    pause(onPause) {\n        this.readyState = \"pausing\";\n        const pause = () => {\n            this.readyState = \"paused\";\n            onPause();\n        };\n        if (this.polling || !this.writable) {\n            let total = 0;\n            if (this.polling) {\n                total++;\n                this.once(\"pollComplete\", function () {\n                    --total || pause();\n                });\n            }\n            if (!this.writable) {\n                total++;\n                this.once(\"drain\", function () {\n                    --total || pause();\n                });\n            }\n        }\n        else {\n            pause();\n        }\n    }\n    /**\n     * Starts polling cycle.\n     *\n     * @private\n     */\n    poll() {\n        this.polling = true;\n        this.doPoll();\n        this.emitReserved(\"poll\");\n    }\n    /**\n     * Overloads onData to detect payloads.\n     *\n     * @protected\n     */\n    onData(data) {\n        const callback = (packet) => {\n            // if its the first message we consider the transport open\n            if (\"opening\" === this.readyState && packet.type === \"open\") {\n                this.onOpen();\n            }\n            // if its a close packet, we close the ongoing requests\n            if (\"close\" === packet.type) {\n                this.onClose({ description: \"transport closed by the server\" });\n                return false;\n            }\n            // otherwise bypass onData and handle the message\n            this.onPacket(packet);\n        };\n        // decode payload\n        decodePayload(data, this.socket.binaryType).forEach(callback);\n        // if an event did not trigger closing\n        if (\"closed\" !== this.readyState) {\n            // if we got data we're not polling\n            this.polling = false;\n            this.emitReserved(\"pollComplete\");\n            if (\"open\" === this.readyState) {\n                this.poll();\n            }\n            else {\n            }\n        }\n    }\n    /**\n     * For polling, send a close packet.\n     *\n     * @protected\n     */\n    doClose() {\n        const close = () => {\n            this.write([{ type: \"close\" }]);\n        };\n        if (\"open\" === this.readyState) {\n            close();\n        }\n        else {\n            // in case we're trying to close while\n            // handshaking is in progress (GH-164)\n            this.once(\"open\", close);\n        }\n    }\n    /**\n     * Writes a packets payload.\n     *\n     * @param {Array} packets - data packets\n     * @protected\n     */\n    write(packets) {\n        this.writable = false;\n        encodePayload(packets, (data) => {\n            this.doWrite(data, () => {\n                this.writable = true;\n                this.emitReserved(\"drain\");\n            });\n        });\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"https\" : \"http\";\n        const query = this.query || {};\n        // cache busting is forced\n        if (false !== this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        if (!this.supportsBinary && !query.sid) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Creates a request.\n     *\n     * @param {String} method\n     * @private\n     */\n    request(opts = {}) {\n        Object.assign(opts, { xd: this.xd, cookieJar: this.cookieJar }, this.opts);\n        return new Request(this.uri(), opts);\n    }\n    /**\n     * Sends data.\n     *\n     * @param {String} data to send.\n     * @param {Function} called upon flush.\n     * @private\n     */\n    doWrite(data, fn) {\n        const req = this.request({\n            method: \"POST\",\n            data: data,\n        });\n        req.on(\"success\", fn);\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr post error\", xhrStatus, context);\n        });\n    }\n    /**\n     * Starts a poll cycle.\n     *\n     * @private\n     */\n    doPoll() {\n        const req = this.request();\n        req.on(\"data\", this.onData.bind(this));\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr poll error\", xhrStatus, context);\n        });\n        this.pollXhr = req;\n    }\n}\nexport class Request extends Emitter {\n    /**\n     * Request constructor\n     *\n     * @param {Object} options\n     * @package\n     */\n    constructor(uri, opts) {\n        super();\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.method = opts.method || \"GET\";\n        this.uri = uri;\n        this.data = undefined !== opts.data ? opts.data : null;\n        this.create();\n    }\n    /**\n     * Creates the XHR object and sends the request.\n     *\n     * @private\n     */\n    create() {\n        var _a;\n        const opts = pick(this.opts, \"agent\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"autoUnref\");\n        opts.xdomain = !!this.opts.xd;\n        const xhr = (this.xhr = new XMLHttpRequest(opts));\n        try {\n            xhr.open(this.method, this.uri, true);\n            try {\n                if (this.opts.extraHeaders) {\n                    xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);\n                    for (let i in this.opts.extraHeaders) {\n                        if (this.opts.extraHeaders.hasOwnProperty(i)) {\n                            xhr.setRequestHeader(i, this.opts.extraHeaders[i]);\n                        }\n                    }\n                }\n            }\n            catch (e) { }\n            if (\"POST\" === this.method) {\n                try {\n                    xhr.setRequestHeader(\"Content-type\", \"text/plain;charset=UTF-8\");\n                }\n                catch (e) { }\n            }\n            try {\n                xhr.setRequestHeader(\"Accept\", \"*/*\");\n            }\n            catch (e) { }\n            (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.addCookies(xhr);\n            // ie6 check\n            if (\"withCredentials\" in xhr) {\n                xhr.withCredentials = this.opts.withCredentials;\n            }\n            if (this.opts.requestTimeout) {\n                xhr.timeout = this.opts.requestTimeout;\n            }\n            xhr.onreadystatechange = () => {\n                var _a;\n                if (xhr.readyState === 3) {\n                    (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.parseCookies(xhr);\n                }\n                if (4 !== xhr.readyState)\n                    return;\n                if (200 === xhr.status || 1223 === xhr.status) {\n                    this.onLoad();\n                }\n                else {\n                    // make sure the `error` event handler that's user-set\n                    // does not throw in the same tick and gets caught here\n                    this.setTimeoutFn(() => {\n                        this.onError(typeof xhr.status === \"number\" ? xhr.status : 0);\n                    }, 0);\n                }\n            };\n            xhr.send(this.data);\n        }\n        catch (e) {\n            // Need to defer since .create() is called directly from the constructor\n            // and thus the 'error' event can only be only bound *after* this exception\n            // occurs.  Therefore, also, we cannot throw here at all.\n            this.setTimeoutFn(() => {\n                this.onError(e);\n            }, 0);\n            return;\n        }\n        if (typeof document !== \"undefined\") {\n            this.index = Request.requestsCount++;\n            Request.requests[this.index] = this;\n        }\n    }\n    /**\n     * Called upon error.\n     *\n     * @private\n     */\n    onError(err) {\n        this.emitReserved(\"error\", err, this.xhr);\n        this.cleanup(true);\n    }\n    /**\n     * Cleans up house.\n     *\n     * @private\n     */\n    cleanup(fromError) {\n        if (\"undefined\" === typeof this.xhr || null === this.xhr) {\n            return;\n        }\n        this.xhr.onreadystatechange = empty;\n        if (fromError) {\n            try {\n                this.xhr.abort();\n            }\n            catch (e) { }\n        }\n        if (typeof document !== \"undefined\") {\n            delete Request.requests[this.index];\n        }\n        this.xhr = null;\n    }\n    /**\n     * Called upon load.\n     *\n     * @private\n     */\n    onLoad() {\n        const data = this.xhr.responseText;\n        if (data !== null) {\n            this.emitReserved(\"data\", data);\n            this.emitReserved(\"success\");\n            this.cleanup();\n        }\n    }\n    /**\n     * Aborts the request.\n     *\n     * @package\n     */\n    abort() {\n        this.cleanup();\n    }\n}\nRequest.requestsCount = 0;\nRequest.requests = {};\n/**\n * Aborts pending requests when unloading the window. This is needed to prevent\n * memory leaks (e.g. when using IE) and to ensure that no spurious error is\n * emitted.\n */\nif (typeof document !== \"undefined\") {\n    // @ts-ignore\n    if (typeof attachEvent === \"function\") {\n        // @ts-ignore\n        attachEvent(\"onunload\", unloadHandler);\n    }\n    else if (typeof addEventListener === \"function\") {\n        const terminationEvent = \"onpagehide\" in globalThis ? \"pagehide\" : \"unload\";\n        addEventListener(terminationEvent, unloadHandler, false);\n    }\n}\nfunction unloadHandler() {\n    for (let i in Request.requests) {\n        if (Request.requests.hasOwnProperty(i)) {\n            Request.requests[i].abort();\n        }\n    }\n}\n", "import { globalThisShim as globalThis } from \"../globalThis.js\";\nexport const nextTick = (() => {\n    const isPromiseAvailable = typeof Promise === \"function\" && typeof Promise.resolve === \"function\";\n    if (isPromiseAvailable) {\n        return (cb) => Promise.resolve().then(cb);\n    }\n    else {\n        return (cb, setTimeoutFn) => setTimeoutFn(cb, 0);\n    }\n})();\nexport const WebSocket = globalThis.WebSocket || globalThis.MozWebSocket;\nexport const usingBrowserWebSocket = true;\nexport const defaultBinaryType = \"arraybuffer\";\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { pick } from \"../util.js\";\nimport { nextTick, usingBrowserWebSocket, WebSocket, } from \"./websocket-constructor.js\";\nimport { encodePacket } from \"engine.io-parser\";\n// detect ReactNative environment\nconst isReactNative = typeof navigator !== \"undefined\" &&\n    typeof navigator.product === \"string\" &&\n    navigator.product.toLowerCase() === \"reactnative\";\nexport class WS extends Transport {\n    /**\n     * WebSocket transport constructor.\n     *\n     * @param {Object} opts - connection options\n     * @protected\n     */\n    constructor(opts) {\n        super(opts);\n        this.supportsBinary = !opts.forceBase64;\n    }\n    get name() {\n        return \"websocket\";\n    }\n    doOpen() {\n        if (!this.check()) {\n            // let probe timeout\n            return;\n        }\n        const uri = this.uri();\n        const protocols = this.opts.protocols;\n        // React Native only supports the 'headers' option, and will print a warning if anything else is passed\n        const opts = isReactNative\n            ? {}\n            : pick(this.opts, \"agent\", \"perMessageDeflate\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"localAddress\", \"protocolVersion\", \"origin\", \"maxPayload\", \"family\", \"checkServerIdentity\");\n        if (this.opts.extraHeaders) {\n            opts.headers = this.opts.extraHeaders;\n        }\n        try {\n            this.ws =\n                usingBrowserWebSocket && !isReactNative\n                    ? protocols\n                        ? new WebSocket(uri, protocols)\n                        : new WebSocket(uri)\n                    : new WebSocket(uri, protocols, opts);\n        }\n        catch (err) {\n            return this.emitReserved(\"error\", err);\n        }\n        this.ws.binaryType = this.socket.binaryType;\n        this.addEventListeners();\n    }\n    /**\n     * Adds event listeners to the socket\n     *\n     * @private\n     */\n    addEventListeners() {\n        this.ws.onopen = () => {\n            if (this.opts.autoUnref) {\n                this.ws._socket.unref();\n            }\n            this.onOpen();\n        };\n        this.ws.onclose = (closeEvent) => this.onClose({\n            description: \"websocket connection closed\",\n            context: closeEvent,\n        });\n        this.ws.onmessage = (ev) => this.onData(ev.data);\n        this.ws.onerror = (e) => this.onError(\"websocket error\", e);\n    }\n    write(packets) {\n        this.writable = false;\n        // encodePacket efficient as it uses WS framing\n        // no need for encodePayload\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            encodePacket(packet, this.supportsBinary, (data) => {\n                // always create a new object (GH-437)\n                const opts = {};\n                if (!usingBrowserWebSocket) {\n                    if (packet.options) {\n                        opts.compress = packet.options.compress;\n                    }\n                    if (this.opts.perMessageDeflate) {\n                        const len = \n                        // @ts-ignore\n                        \"string\" === typeof data ? Buffer.byteLength(data) : data.length;\n                        if (len < this.opts.perMessageDeflate.threshold) {\n                            opts.compress = false;\n                        }\n                    }\n                }\n                // Sometimes the websocket has already been closed but the browser didn't\n                // have a chance of informing us about it yet, in that case send will\n                // throw an error\n                try {\n                    if (usingBrowserWebSocket) {\n                        // TypeError is thrown when passing the second argument on Safari\n                        this.ws.send(data);\n                    }\n                    else {\n                        this.ws.send(data, opts);\n                    }\n                }\n                catch (e) {\n                }\n                if (lastPacket) {\n                    // fake drain\n                    // defer to next tick to allow Socket to clear writeBuffer\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        if (typeof this.ws !== \"undefined\") {\n            this.ws.close();\n            this.ws = null;\n        }\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"wss\" : \"ws\";\n        const query = this.query || {};\n        // append timestamp to URI\n        if (this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        // communicate binary support capabilities\n        if (!this.supportsBinary) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Feature detection for WebSocket.\n     *\n     * @return {Boolean} whether this transport is available.\n     * @private\n     */\n    check() {\n        return !!WebSocket;\n    }\n}\n", "import { Transport } from \"../transport.js\";\nimport { nextTick } from \"./websocket-constructor.js\";\nimport { createPacketDecoderStream, createPacketEncoderStream, } from \"engine.io-parser\";\nexport class WT extends Transport {\n    get name() {\n        return \"webtransport\";\n    }\n    doOpen() {\n        // @ts-ignore\n        if (typeof WebTransport !== \"function\") {\n            return;\n        }\n        // @ts-ignore\n        this.transport = new WebTransport(this.createUri(\"https\"), this.opts.transportOptions[this.name]);\n        this.transport.closed\n            .then(() => {\n            this.onClose();\n        })\n            .catch((err) => {\n            this.onError(\"webtransport error\", err);\n        });\n        // note: we could have used async/await, but that would require some additional polyfills\n        this.transport.ready.then(() => {\n            this.transport.createBidirectionalStream().then((stream) => {\n                const decoderStream = createPacketDecoderStream(Number.MAX_SAFE_INTEGER, this.socket.binaryType);\n                const reader = stream.readable.pipeThrough(decoderStream).getReader();\n                const encoderStream = createPacketEncoderStream();\n                encoderStream.readable.pipeTo(stream.writable);\n                this.writer = encoderStream.writable.getWriter();\n                const read = () => {\n                    reader\n                        .read()\n                        .then(({ done, value }) => {\n                        if (done) {\n                            return;\n                        }\n                        this.onPacket(value);\n                        read();\n                    })\n                        .catch((err) => {\n                    });\n                };\n                read();\n                const packet = { type: \"open\" };\n                if (this.query.sid) {\n                    packet.data = `{\"sid\":\"${this.query.sid}\"}`;\n                }\n                this.writer.write(packet).then(() => this.onOpen());\n            });\n        });\n    }\n    write(packets) {\n        this.writable = false;\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            this.writer.write(packet).then(() => {\n                if (lastPacket) {\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        var _a;\n        (_a = this.transport) === null || _a === void 0 ? void 0 : _a.close();\n    }\n}\n", "import { Polling } from \"./polling.js\";\nimport { WS } from \"./websocket.js\";\nimport { WT } from \"./webtransport.js\";\nexport const transports = {\n    websocket: WS,\n    webtransport: WT,\n    polling: Polling,\n};\n", "// imported from https://github.com/galkn/parseuri\n/**\n * Parses a URI\n *\n * Note: we could also have used the built-in URL object, but it isn't supported on all platforms.\n *\n * See:\n * - https://developer.mozilla.org/en-US/docs/Web/API/URL\n * - https://caniuse.com/url\n * - https://www.rfc-editor.org/rfc/rfc3986#appendix-B\n *\n * History of the parse() method:\n * - first commit: https://github.com/socketio/socket.io-client/commit/4ee1d5d94b3906a9c052b459f1a818b15f38f91c\n * - export into its own module: https://github.com/socketio/engine.io-client/commit/de2c561e4564efeb78f1bdb1ba39ef81b2822cb3\n * - reimport: https://github.com/socketio/engine.io-client/commit/df32277c3f6d622eec5ed09f493cae3f3391d242\n *\n * @author Steven Levithan <stevenlevithan.com> (MIT license)\n * @api private\n */\nconst re = /^(?:(?![^:@\\/?#]+:[^:@\\/]*@)(http|https|ws|wss):\\/\\/)?((?:(([^:@\\/?#]*)(?::([^:@\\/?#]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\\/?#]*)(?::(\\d*))?)(((\\/(?:[^?#](?![^?#\\/]*\\.[^?#\\/.]+(?:[?#]|$)))*\\/?)?([^?#\\/]*))(?:\\?([^#]*))?(?:#(.*))?)/;\nconst parts = [\n    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'\n];\nexport function parse(str) {\n    if (str.length > 2000) {\n        throw \"URI too long\";\n    }\n    const src = str, b = str.indexOf('['), e = str.indexOf(']');\n    if (b != -1 && e != -1) {\n        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);\n    }\n    let m = re.exec(str || ''), uri = {}, i = 14;\n    while (i--) {\n        uri[parts[i]] = m[i] || '';\n    }\n    if (b != -1 && e != -1) {\n        uri.source = src;\n        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');\n        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');\n        uri.ipv6uri = true;\n    }\n    uri.pathNames = pathNames(uri, uri['path']);\n    uri.queryKey = queryKey(uri, uri['query']);\n    return uri;\n}\nfunction pathNames(obj, path) {\n    const regx = /\\/{2,9}/g, names = path.replace(regx, \"/\").split(\"/\");\n    if (path.slice(0, 1) == '/' || path.length === 0) {\n        names.splice(0, 1);\n    }\n    if (path.slice(-1) == '/') {\n        names.splice(names.length - 1, 1);\n    }\n    return names;\n}\nfunction queryKey(uri, query) {\n    const data = {};\n    query.replace(/(?:^|&)([^&=]*)=?([^&]*)/g, function ($0, $1, $2) {\n        if ($1) {\n            data[$1] = $2;\n        }\n    });\n    return data;\n}\n", "import { transports } from \"./transports/index.js\";\nimport { installTimerFunctions, byteLength } from \"./util.js\";\nimport { decode } from \"./contrib/parseqs.js\";\nimport { parse } from \"./contrib/parseuri.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { protocol } from \"engine.io-parser\";\nimport { defaultBinaryType } from \"./transports/websocket-constructor.js\";\nexport class Socket extends Emitter {\n    /**\n     * Socket constructor.\n     *\n     * @param {String|Object} uri - uri or options\n     * @param {Object} opts - options\n     */\n    constructor(uri, opts = {}) {\n        super();\n        this.binaryType = defaultBinaryType;\n        this.writeBuffer = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = null;\n        }\n        if (uri) {\n            uri = parse(uri);\n            opts.hostname = uri.host;\n            opts.secure = uri.protocol === \"https\" || uri.protocol === \"wss\";\n            opts.port = uri.port;\n            if (uri.query)\n                opts.query = uri.query;\n        }\n        else if (opts.host) {\n            opts.hostname = parse(opts.host).host;\n        }\n        installTimerFunctions(this, opts);\n        this.secure =\n            null != opts.secure\n                ? opts.secure\n                : typeof location !== \"undefined\" && \"https:\" === location.protocol;\n        if (opts.hostname && !opts.port) {\n            // if no port is specified manually, use the protocol default\n            opts.port = this.secure ? \"443\" : \"80\";\n        }\n        this.hostname =\n            opts.hostname ||\n                (typeof location !== \"undefined\" ? location.hostname : \"localhost\");\n        this.port =\n            opts.port ||\n                (typeof location !== \"undefined\" && location.port\n                    ? location.port\n                    : this.secure\n                        ? \"443\"\n                        : \"80\");\n        this.transports = opts.transports || [\n            \"polling\",\n            \"websocket\",\n            \"webtransport\",\n        ];\n        this.writeBuffer = [];\n        this.prevBufferLen = 0;\n        this.opts = Object.assign({\n            path: \"/engine.io\",\n            agent: false,\n            withCredentials: false,\n            upgrade: true,\n            timestampParam: \"t\",\n            rememberUpgrade: false,\n            addTrailingSlash: true,\n            rejectUnauthorized: true,\n            perMessageDeflate: {\n                threshold: 1024,\n            },\n            transportOptions: {},\n            closeOnBeforeunload: false,\n        }, opts);\n        this.opts.path =\n            this.opts.path.replace(/\\/$/, \"\") +\n                (this.opts.addTrailingSlash ? \"/\" : \"\");\n        if (typeof this.opts.query === \"string\") {\n            this.opts.query = decode(this.opts.query);\n        }\n        // set on handshake\n        this.id = null;\n        this.upgrades = null;\n        this.pingInterval = null;\n        this.pingTimeout = null;\n        // set on heartbeat\n        this.pingTimeoutTimer = null;\n        if (typeof addEventListener === \"function\") {\n            if (this.opts.closeOnBeforeunload) {\n                // Firefox closes the connection when the \"beforeunload\" event is emitted but not Chrome. This event listener\n                // ensures every browser behaves the same (no \"disconnect\" event at the Socket.IO level when the page is\n                // closed/reloaded)\n                this.beforeunloadEventListener = () => {\n                    if (this.transport) {\n                        // silently close the transport\n                        this.transport.removeAllListeners();\n                        this.transport.close();\n                    }\n                };\n                addEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n            }\n            if (this.hostname !== \"localhost\") {\n                this.offlineEventListener = () => {\n                    this.onClose(\"transport close\", {\n                        description: \"network connection lost\",\n                    });\n                };\n                addEventListener(\"offline\", this.offlineEventListener, false);\n            }\n        }\n        this.open();\n    }\n    /**\n     * Creates transport of the given type.\n     *\n     * @param {String} name - transport name\n     * @return {Transport}\n     * @private\n     */\n    createTransport(name) {\n        const query = Object.assign({}, this.opts.query);\n        // append engine.io protocol identifier\n        query.EIO = protocol;\n        // transport name\n        query.transport = name;\n        // session id if we already have one\n        if (this.id)\n            query.sid = this.id;\n        const opts = Object.assign({}, this.opts, {\n            query,\n            socket: this,\n            hostname: this.hostname,\n            secure: this.secure,\n            port: this.port,\n        }, this.opts.transportOptions[name]);\n        return new transports[name](opts);\n    }\n    /**\n     * Initializes transport to use and starts probe.\n     *\n     * @private\n     */\n    open() {\n        let transport;\n        if (this.opts.rememberUpgrade &&\n            Socket.priorWebsocketSuccess &&\n            this.transports.indexOf(\"websocket\") !== -1) {\n            transport = \"websocket\";\n        }\n        else if (0 === this.transports.length) {\n            // Emit error on next tick so it can be listened to\n            this.setTimeoutFn(() => {\n                this.emitReserved(\"error\", \"No transports available\");\n            }, 0);\n            return;\n        }\n        else {\n            transport = this.transports[0];\n        }\n        this.readyState = \"opening\";\n        // Retry with the next transport if the transport is disabled (jsonp: false)\n        try {\n            transport = this.createTransport(transport);\n        }\n        catch (e) {\n            this.transports.shift();\n            this.open();\n            return;\n        }\n        transport.open();\n        this.setTransport(transport);\n    }\n    /**\n     * Sets the current transport. Disables the existing one (if any).\n     *\n     * @private\n     */\n    setTransport(transport) {\n        if (this.transport) {\n            this.transport.removeAllListeners();\n        }\n        // set up transport\n        this.transport = transport;\n        // set up transport listeners\n        transport\n            .on(\"drain\", this.onDrain.bind(this))\n            .on(\"packet\", this.onPacket.bind(this))\n            .on(\"error\", this.onError.bind(this))\n            .on(\"close\", (reason) => this.onClose(\"transport close\", reason));\n    }\n    /**\n     * Probes a transport.\n     *\n     * @param {String} name - transport name\n     * @private\n     */\n    probe(name) {\n        let transport = this.createTransport(name);\n        let failed = false;\n        Socket.priorWebsocketSuccess = false;\n        const onTransportOpen = () => {\n            if (failed)\n                return;\n            transport.send([{ type: \"ping\", data: \"probe\" }]);\n            transport.once(\"packet\", (msg) => {\n                if (failed)\n                    return;\n                if (\"pong\" === msg.type && \"probe\" === msg.data) {\n                    this.upgrading = true;\n                    this.emitReserved(\"upgrading\", transport);\n                    if (!transport)\n                        return;\n                    Socket.priorWebsocketSuccess = \"websocket\" === transport.name;\n                    this.transport.pause(() => {\n                        if (failed)\n                            return;\n                        if (\"closed\" === this.readyState)\n                            return;\n                        cleanup();\n                        this.setTransport(transport);\n                        transport.send([{ type: \"upgrade\" }]);\n                        this.emitReserved(\"upgrade\", transport);\n                        transport = null;\n                        this.upgrading = false;\n                        this.flush();\n                    });\n                }\n                else {\n                    const err = new Error(\"probe error\");\n                    // @ts-ignore\n                    err.transport = transport.name;\n                    this.emitReserved(\"upgradeError\", err);\n                }\n            });\n        };\n        function freezeTransport() {\n            if (failed)\n                return;\n            // Any callback called by transport should be ignored since now\n            failed = true;\n            cleanup();\n            transport.close();\n            transport = null;\n        }\n        // Handle any error that happens while probing\n        const onerror = (err) => {\n            const error = new Error(\"probe error: \" + err);\n            // @ts-ignore\n            error.transport = transport.name;\n            freezeTransport();\n            this.emitReserved(\"upgradeError\", error);\n        };\n        function onTransportClose() {\n            onerror(\"transport closed\");\n        }\n        // When the socket is closed while we're probing\n        function onclose() {\n            onerror(\"socket closed\");\n        }\n        // When the socket is upgraded while we're probing\n        function onupgrade(to) {\n            if (transport && to.name !== transport.name) {\n                freezeTransport();\n            }\n        }\n        // Remove all listeners on the transport and on self\n        const cleanup = () => {\n            transport.removeListener(\"open\", onTransportOpen);\n            transport.removeListener(\"error\", onerror);\n            transport.removeListener(\"close\", onTransportClose);\n            this.off(\"close\", onclose);\n            this.off(\"upgrading\", onupgrade);\n        };\n        transport.once(\"open\", onTransportOpen);\n        transport.once(\"error\", onerror);\n        transport.once(\"close\", onTransportClose);\n        this.once(\"close\", onclose);\n        this.once(\"upgrading\", onupgrade);\n        if (this.upgrades.indexOf(\"webtransport\") !== -1 &&\n            name !== \"webtransport\") {\n            // favor WebTransport\n            this.setTimeoutFn(() => {\n                if (!failed) {\n                    transport.open();\n                }\n            }, 200);\n        }\n        else {\n            transport.open();\n        }\n    }\n    /**\n     * Called when connection is deemed open.\n     *\n     * @private\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        Socket.priorWebsocketSuccess = \"websocket\" === this.transport.name;\n        this.emitReserved(\"open\");\n        this.flush();\n        // we check for `readyState` in case an `open`\n        // listener already closed the socket\n        if (\"open\" === this.readyState && this.opts.upgrade) {\n            let i = 0;\n            const l = this.upgrades.length;\n            for (; i < l; i++) {\n                this.probe(this.upgrades[i]);\n            }\n        }\n    }\n    /**\n     * Handles a packet.\n     *\n     * @private\n     */\n    onPacket(packet) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            this.emitReserved(\"packet\", packet);\n            // Socket is live - any packet counts\n            this.emitReserved(\"heartbeat\");\n            this.resetPingTimeout();\n            switch (packet.type) {\n                case \"open\":\n                    this.onHandshake(JSON.parse(packet.data));\n                    break;\n                case \"ping\":\n                    this.sendPacket(\"pong\");\n                    this.emitReserved(\"ping\");\n                    this.emitReserved(\"pong\");\n                    break;\n                case \"error\":\n                    const err = new Error(\"server error\");\n                    // @ts-ignore\n                    err.code = packet.data;\n                    this.onError(err);\n                    break;\n                case \"message\":\n                    this.emitReserved(\"data\", packet.data);\n                    this.emitReserved(\"message\", packet.data);\n                    break;\n            }\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon handshake completion.\n     *\n     * @param {Object} data - handshake obj\n     * @private\n     */\n    onHandshake(data) {\n        this.emitReserved(\"handshake\", data);\n        this.id = data.sid;\n        this.transport.query.sid = data.sid;\n        this.upgrades = this.filterUpgrades(data.upgrades);\n        this.pingInterval = data.pingInterval;\n        this.pingTimeout = data.pingTimeout;\n        this.maxPayload = data.maxPayload;\n        this.onOpen();\n        // In case open handler closes socket\n        if (\"closed\" === this.readyState)\n            return;\n        this.resetPingTimeout();\n    }\n    /**\n     * Sets and resets ping timeout timer based on server pings.\n     *\n     * @private\n     */\n    resetPingTimeout() {\n        this.clearTimeoutFn(this.pingTimeoutTimer);\n        this.pingTimeoutTimer = this.setTimeoutFn(() => {\n            this.onClose(\"ping timeout\");\n        }, this.pingInterval + this.pingTimeout);\n        if (this.opts.autoUnref) {\n            this.pingTimeoutTimer.unref();\n        }\n    }\n    /**\n     * Called on `drain` event\n     *\n     * @private\n     */\n    onDrain() {\n        this.writeBuffer.splice(0, this.prevBufferLen);\n        // setting prevBufferLen = 0 is very important\n        // for example, when upgrading, upgrade packet is sent over,\n        // and a nonzero prevBufferLen could cause problems on `drain`\n        this.prevBufferLen = 0;\n        if (0 === this.writeBuffer.length) {\n            this.emitReserved(\"drain\");\n        }\n        else {\n            this.flush();\n        }\n    }\n    /**\n     * Flush write buffers.\n     *\n     * @private\n     */\n    flush() {\n        if (\"closed\" !== this.readyState &&\n            this.transport.writable &&\n            !this.upgrading &&\n            this.writeBuffer.length) {\n            const packets = this.getWritablePackets();\n            this.transport.send(packets);\n            // keep track of current length of writeBuffer\n            // splice writeBuffer and callbackBuffer on `drain`\n            this.prevBufferLen = packets.length;\n            this.emitReserved(\"flush\");\n        }\n    }\n    /**\n     * Ensure the encoded size of the writeBuffer is below the maxPayload value sent by the server (only for HTTP\n     * long-polling)\n     *\n     * @private\n     */\n    getWritablePackets() {\n        const shouldCheckPayloadSize = this.maxPayload &&\n            this.transport.name === \"polling\" &&\n            this.writeBuffer.length > 1;\n        if (!shouldCheckPayloadSize) {\n            return this.writeBuffer;\n        }\n        let payloadSize = 1; // first packet type\n        for (let i = 0; i < this.writeBuffer.length; i++) {\n            const data = this.writeBuffer[i].data;\n            if (data) {\n                payloadSize += byteLength(data);\n            }\n            if (i > 0 && payloadSize > this.maxPayload) {\n                return this.writeBuffer.slice(0, i);\n            }\n            payloadSize += 2; // separator + packet type\n        }\n        return this.writeBuffer;\n    }\n    /**\n     * Sends a message.\n     *\n     * @param {String} msg - message.\n     * @param {Object} options.\n     * @param {Function} callback function.\n     * @return {Socket} for chaining.\n     */\n    write(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    send(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param {String} type: packet type.\n     * @param {String} data.\n     * @param {Object} options.\n     * @param {Function} fn - callback function.\n     * @private\n     */\n    sendPacket(type, data, options, fn) {\n        if (\"function\" === typeof data) {\n            fn = data;\n            data = undefined;\n        }\n        if (\"function\" === typeof options) {\n            fn = options;\n            options = null;\n        }\n        if (\"closing\" === this.readyState || \"closed\" === this.readyState) {\n            return;\n        }\n        options = options || {};\n        options.compress = false !== options.compress;\n        const packet = {\n            type: type,\n            data: data,\n            options: options,\n        };\n        this.emitReserved(\"packetCreate\", packet);\n        this.writeBuffer.push(packet);\n        if (fn)\n            this.once(\"flush\", fn);\n        this.flush();\n    }\n    /**\n     * Closes the connection.\n     */\n    close() {\n        const close = () => {\n            this.onClose(\"forced close\");\n            this.transport.close();\n        };\n        const cleanupAndClose = () => {\n            this.off(\"upgrade\", cleanupAndClose);\n            this.off(\"upgradeError\", cleanupAndClose);\n            close();\n        };\n        const waitForUpgrade = () => {\n            // wait for upgrade to finish since we can't send packets while pausing a transport\n            this.once(\"upgrade\", cleanupAndClose);\n            this.once(\"upgradeError\", cleanupAndClose);\n        };\n        if (\"opening\" === this.readyState || \"open\" === this.readyState) {\n            this.readyState = \"closing\";\n            if (this.writeBuffer.length) {\n                this.once(\"drain\", () => {\n                    if (this.upgrading) {\n                        waitForUpgrade();\n                    }\n                    else {\n                        close();\n                    }\n                });\n            }\n            else if (this.upgrading) {\n                waitForUpgrade();\n            }\n            else {\n                close();\n            }\n        }\n        return this;\n    }\n    /**\n     * Called upon transport error\n     *\n     * @private\n     */\n    onError(err) {\n        Socket.priorWebsocketSuccess = false;\n        this.emitReserved(\"error\", err);\n        this.onClose(\"transport error\", err);\n    }\n    /**\n     * Called upon transport close.\n     *\n     * @private\n     */\n    onClose(reason, description) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            // clear timers\n            this.clearTimeoutFn(this.pingTimeoutTimer);\n            // stop event from firing again for transport\n            this.transport.removeAllListeners(\"close\");\n            // ensure transport won't stay open\n            this.transport.close();\n            // ignore further transport communication\n            this.transport.removeAllListeners();\n            if (typeof removeEventListener === \"function\") {\n                removeEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n                removeEventListener(\"offline\", this.offlineEventListener, false);\n            }\n            // set ready state\n            this.readyState = \"closed\";\n            // clear session id\n            this.id = null;\n            // emit close event\n            this.emitReserved(\"close\", reason, description);\n            // clean buffers after, so users can still\n            // grab the buffers on `close` event\n            this.writeBuffer = [];\n            this.prevBufferLen = 0;\n        }\n    }\n    /**\n     * Filters upgrades, returning only those matching client transports.\n     *\n     * @param {Array} upgrades - server upgrades\n     * @private\n     */\n    filterUpgrades(upgrades) {\n        const filteredUpgrades = [];\n        let i = 0;\n        const j = upgrades.length;\n        for (; i < j; i++) {\n            if (~this.transports.indexOf(upgrades[i]))\n                filteredUpgrades.push(upgrades[i]);\n        }\n        return filteredUpgrades;\n    }\n}\nSocket.protocol = protocol;\n", "import { Socket } from \"./socket.js\";\nexport { Socket };\nexport const protocol = Socket.protocol;\nexport { Transport, TransportError } from \"./transport.js\";\nexport { transports } from \"./transports/index.js\";\nexport { installTimerFunctions } from \"./util.js\";\nexport { parse } from \"./contrib/parseuri.js\";\nexport { nextTick } from \"./transports/websocket-constructor.js\";\n", "import { parse } from \"engine.io-client\";\n/**\n * URL parser.\n *\n * @param uri - url\n * @param path - the request path of the connection\n * @param loc - An object meant to mimic window.location.\n *        Defaults to window.location.\n * @public\n */\nexport function url(uri, path = \"\", loc) {\n    let obj = uri;\n    // default to window.location\n    loc = loc || (typeof location !== \"undefined\" && location);\n    if (null == uri)\n        uri = loc.protocol + \"//\" + loc.host;\n    // relative path support\n    if (typeof uri === \"string\") {\n        if (\"/\" === uri.charAt(0)) {\n            if (\"/\" === uri.charAt(1)) {\n                uri = loc.protocol + uri;\n            }\n            else {\n                uri = loc.host + uri;\n            }\n        }\n        if (!/^(https?|wss?):\\/\\//.test(uri)) {\n            if (\"undefined\" !== typeof loc) {\n                uri = loc.protocol + \"//\" + uri;\n            }\n            else {\n                uri = \"https://\" + uri;\n            }\n        }\n        // parse\n        obj = parse(uri);\n    }\n    // make sure we treat `localhost:80` and `localhost` equally\n    if (!obj.port) {\n        if (/^(http|ws)$/.test(obj.protocol)) {\n            obj.port = \"80\";\n        }\n        else if (/^(http|ws)s$/.test(obj.protocol)) {\n            obj.port = \"443\";\n        }\n    }\n    obj.path = obj.path || \"/\";\n    const ipv6 = obj.host.indexOf(\":\") !== -1;\n    const host = ipv6 ? \"[\" + obj.host + \"]\" : obj.host;\n    // define unique id\n    obj.id = obj.protocol + \"://\" + host + \":\" + obj.port + path;\n    // define href\n    obj.href =\n        obj.protocol +\n            \"://\" +\n            host +\n            (loc && loc.port === obj.port ? \"\" : \":\" + obj.port);\n    return obj;\n}\n", "import { Emitter } from \"@socket.io/component-emitter\";\nimport { deconstructPacket, reconstructPacket } from \"./binary.js\";\nimport { isBinary, hasBinary } from \"./is-binary.js\";\n/**\n * These strings must not be used as event names, as they have a special meaning.\n */\nconst RESERVED_EVENTS = [\n    \"connect\",\n    \"connect_error\",\n    \"disconnect\",\n    \"disconnecting\",\n    \"newListener\",\n    \"removeListener\", // used by the Node.js EventEmitter\n];\n/**\n * Protocol version.\n *\n * @public\n */\nexport const protocol = 5;\nexport var PacketType;\n(function (PacketType) {\n    PacketType[PacketType[\"CONNECT\"] = 0] = \"CONNECT\";\n    PacketType[PacketType[\"DISCONNECT\"] = 1] = \"DISCONNECT\";\n    PacketType[PacketType[\"EVENT\"] = 2] = \"EVENT\";\n    PacketType[PacketType[\"ACK\"] = 3] = \"ACK\";\n    PacketType[PacketType[\"CONNECT_ERROR\"] = 4] = \"CONNECT_ERROR\";\n    PacketType[PacketType[\"BINARY_EVENT\"] = 5] = \"BINARY_EVENT\";\n    PacketType[PacketType[\"BINARY_ACK\"] = 6] = \"BINARY_ACK\";\n})(PacketType || (PacketType = {}));\n/**\n * A socket.io Encoder instance\n */\nexport class Encoder {\n    /**\n     * Encoder constructor\n     *\n     * @param {function} replacer - custom replacer to pass down to JSON.parse\n     */\n    constructor(replacer) {\n        this.replacer = replacer;\n    }\n    /**\n     * Encode a packet as a single string if non-binary, or as a\n     * buffer sequence, depending on packet type.\n     *\n     * @param {Object} obj - packet object\n     */\n    encode(obj) {\n        if (obj.type === PacketType.EVENT || obj.type === PacketType.ACK) {\n            if (hasBinary(obj)) {\n                return this.encodeAsBinary({\n                    type: obj.type === PacketType.EVENT\n                        ? PacketType.BINARY_EVENT\n                        : PacketType.BINARY_ACK,\n                    nsp: obj.nsp,\n                    data: obj.data,\n                    id: obj.id,\n                });\n            }\n        }\n        return [this.encodeAsString(obj)];\n    }\n    /**\n     * Encode packet as string.\n     */\n    encodeAsString(obj) {\n        // first is type\n        let str = \"\" + obj.type;\n        // attachments if we have them\n        if (obj.type === PacketType.BINARY_EVENT ||\n            obj.type === PacketType.BINARY_ACK) {\n            str += obj.attachments + \"-\";\n        }\n        // if we have a namespace other than `/`\n        // we append it followed by a comma `,`\n        if (obj.nsp && \"/\" !== obj.nsp) {\n            str += obj.nsp + \",\";\n        }\n        // immediately followed by the id\n        if (null != obj.id) {\n            str += obj.id;\n        }\n        // json data\n        if (null != obj.data) {\n            str += JSON.stringify(obj.data, this.replacer);\n        }\n        return str;\n    }\n    /**\n     * Encode packet as 'buffer sequence' by removing blobs, and\n     * deconstructing packet into object with placeholders and\n     * a list of buffers.\n     */\n    encodeAsBinary(obj) {\n        const deconstruction = deconstructPacket(obj);\n        const pack = this.encodeAsString(deconstruction.packet);\n        const buffers = deconstruction.buffers;\n        buffers.unshift(pack); // add packet info to beginning of data list\n        return buffers; // write all the buffers\n    }\n}\n// see https://stackoverflow.com/questions/8511281/check-if-a-value-is-an-object-in-javascript\nfunction isObject(value) {\n    return Object.prototype.toString.call(value) === \"[object Object]\";\n}\n/**\n * A socket.io Decoder instance\n *\n * @return {Object} decoder\n */\nexport class Decoder extends Emitter {\n    /**\n     * Decoder constructor\n     *\n     * @param {function} reviver - custom reviver to pass down to JSON.stringify\n     */\n    constructor(reviver) {\n        super();\n        this.reviver = reviver;\n    }\n    /**\n     * Decodes an encoded packet string into packet JSON.\n     *\n     * @param {String} obj - encoded packet\n     */\n    add(obj) {\n        let packet;\n        if (typeof obj === \"string\") {\n            if (this.reconstructor) {\n                throw new Error(\"got plaintext data when reconstructing a packet\");\n            }\n            packet = this.decodeString(obj);\n            const isBinaryEvent = packet.type === PacketType.BINARY_EVENT;\n            if (isBinaryEvent || packet.type === PacketType.BINARY_ACK) {\n                packet.type = isBinaryEvent ? PacketType.EVENT : PacketType.ACK;\n                // binary packet's json\n                this.reconstructor = new BinaryReconstructor(packet);\n                // no attachments, labeled binary but no binary data to follow\n                if (packet.attachments === 0) {\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n            else {\n                // non-binary full packet\n                super.emitReserved(\"decoded\", packet);\n            }\n        }\n        else if (isBinary(obj) || obj.base64) {\n            // raw binary data\n            if (!this.reconstructor) {\n                throw new Error(\"got binary data when not reconstructing a packet\");\n            }\n            else {\n                packet = this.reconstructor.takeBinaryData(obj);\n                if (packet) {\n                    // received final buffer\n                    this.reconstructor = null;\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n        }\n        else {\n            throw new Error(\"Unknown type: \" + obj);\n        }\n    }\n    /**\n     * Decode a packet String (JSON data)\n     *\n     * @param {String} str\n     * @return {Object} packet\n     */\n    decodeString(str) {\n        let i = 0;\n        // look up type\n        const p = {\n            type: Number(str.charAt(0)),\n        };\n        if (PacketType[p.type] === undefined) {\n            throw new Error(\"unknown packet type \" + p.type);\n        }\n        // look up attachments if type binary\n        if (p.type === PacketType.BINARY_EVENT ||\n            p.type === PacketType.BINARY_ACK) {\n            const start = i + 1;\n            while (str.charAt(++i) !== \"-\" && i != str.length) { }\n            const buf = str.substring(start, i);\n            if (buf != Number(buf) || str.charAt(i) !== \"-\") {\n                throw new Error(\"Illegal attachments\");\n            }\n            p.attachments = Number(buf);\n        }\n        // look up namespace (if any)\n        if (\"/\" === str.charAt(i + 1)) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (\",\" === c)\n                    break;\n                if (i === str.length)\n                    break;\n            }\n            p.nsp = str.substring(start, i);\n        }\n        else {\n            p.nsp = \"/\";\n        }\n        // look up id\n        const next = str.charAt(i + 1);\n        if (\"\" !== next && Number(next) == next) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (null == c || Number(c) != c) {\n                    --i;\n                    break;\n                }\n                if (i === str.length)\n                    break;\n            }\n            p.id = Number(str.substring(start, i + 1));\n        }\n        // look up json data\n        if (str.charAt(++i)) {\n            const payload = this.tryParse(str.substr(i));\n            if (Decoder.isPayloadValid(p.type, payload)) {\n                p.data = payload;\n            }\n            else {\n                throw new Error(\"invalid payload\");\n            }\n        }\n        return p;\n    }\n    tryParse(str) {\n        try {\n            return JSON.parse(str, this.reviver);\n        }\n        catch (e) {\n            return false;\n        }\n    }\n    static isPayloadValid(type, payload) {\n        switch (type) {\n            case PacketType.CONNECT:\n                return isObject(payload);\n            case PacketType.DISCONNECT:\n                return payload === undefined;\n            case PacketType.CONNECT_ERROR:\n                return typeof payload === \"string\" || isObject(payload);\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                return (Array.isArray(payload) &&\n                    (typeof payload[0] === \"number\" ||\n                        (typeof payload[0] === \"string\" &&\n                            RESERVED_EVENTS.indexOf(payload[0]) === -1)));\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                return Array.isArray(payload);\n        }\n    }\n    /**\n     * Deallocates a parser's resources\n     */\n    destroy() {\n        if (this.reconstructor) {\n            this.reconstructor.finishedReconstruction();\n            this.reconstructor = null;\n        }\n    }\n}\n/**\n * A manager of a binary event's 'buffer sequence'. Should\n * be constructed whenever a packet of type BINARY_EVENT is\n * decoded.\n *\n * @param {Object} packet\n * @return {BinaryReconstructor} initialized reconstructor\n */\nclass BinaryReconstructor {\n    constructor(packet) {\n        this.packet = packet;\n        this.buffers = [];\n        this.reconPack = packet;\n    }\n    /**\n     * Method to be called when binary data received from connection\n     * after a BINARY_EVENT packet.\n     *\n     * @param {Buffer | ArrayBuffer} binData - the raw binary data received\n     * @return {null | Object} returns null if more binary data is expected or\n     *   a reconstructed packet object if all buffers have been received.\n     */\n    takeBinaryData(binData) {\n        this.buffers.push(binData);\n        if (this.buffers.length === this.reconPack.attachments) {\n            // done with buffer list\n            const packet = reconstructPacket(this.reconPack, this.buffers);\n            this.finishedReconstruction();\n            return packet;\n        }\n        return null;\n    }\n    /**\n     * Cleans up binary packet reconstruction variables.\n     */\n    finishedReconstruction() {\n        this.reconPack = null;\n        this.buffers = [];\n    }\n}\n", "const withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nconst isView = (obj) => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj.buffer instanceof ArrayBuffer;\n};\nconst toString = Object.prototype.toString;\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeFile = typeof File === \"function\" ||\n    (typeof File !== \"undefined\" &&\n        toString.call(File) === \"[object FileConstructor]\");\n/**\n * Returns true if obj is a Buffer, an ArrayBuffer, a Blob or a File.\n *\n * @private\n */\nexport function isBinary(obj) {\n    return ((withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj))) ||\n        (withNativeBlob && obj instanceof Blob) ||\n        (withNativeFile && obj instanceof File));\n}\nexport function hasBinary(obj, toJSON) {\n    if (!obj || typeof obj !== \"object\") {\n        return false;\n    }\n    if (Array.isArray(obj)) {\n        for (let i = 0, l = obj.length; i < l; i++) {\n            if (hasBinary(obj[i])) {\n                return true;\n            }\n        }\n        return false;\n    }\n    if (isBinary(obj)) {\n        return true;\n    }\n    if (obj.toJSON &&\n        typeof obj.toJSON === \"function\" &&\n        arguments.length === 1) {\n        return hasBinary(obj.toJSON(), true);\n    }\n    for (const key in obj) {\n        if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {\n            return true;\n        }\n    }\n    return false;\n}\n", "import { isBinary } from \"./is-binary.js\";\n/**\n * Replaces every Buffer | ArrayBuffer | Blob | File in packet with a numbered placeholder.\n *\n * @param {Object} packet - socket.io event packet\n * @return {Object} with deconstructed packet and list of buffers\n * @public\n */\nexport function deconstructPacket(packet) {\n    const buffers = [];\n    const packetData = packet.data;\n    const pack = packet;\n    pack.data = _deconstructPacket(packetData, buffers);\n    pack.attachments = buffers.length; // number of binary 'attachments'\n    return { packet: pack, buffers: buffers };\n}\nfunction _deconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (isBinary(data)) {\n        const placeholder = { _placeholder: true, num: buffers.length };\n        buffers.push(data);\n        return placeholder;\n    }\n    else if (Array.isArray(data)) {\n        const newData = new Array(data.length);\n        for (let i = 0; i < data.length; i++) {\n            newData[i] = _deconstructPacket(data[i], buffers);\n        }\n        return newData;\n    }\n    else if (typeof data === \"object\" && !(data instanceof Date)) {\n        const newData = {};\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                newData[key] = _deconstructPacket(data[key], buffers);\n            }\n        }\n        return newData;\n    }\n    return data;\n}\n/**\n * Reconstructs a binary packet from its placeholder packet and buffers\n *\n * @param {Object} packet - event packet with placeholders\n * @param {Array} buffers - binary buffers to put in placeholder positions\n * @return {Object} reconstructed packet\n * @public\n */\nexport function reconstructPacket(packet, buffers) {\n    packet.data = _reconstructPacket(packet.data, buffers);\n    delete packet.attachments; // no longer useful\n    return packet;\n}\nfunction _reconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (data && data._placeholder === true) {\n        const isIndexValid = typeof data.num === \"number\" &&\n            data.num >= 0 &&\n            data.num < buffers.length;\n        if (isIndexValid) {\n            return buffers[data.num]; // appropriate buffer (should be natural order anyway)\n        }\n        else {\n            throw new Error(\"illegal attachments\");\n        }\n    }\n    else if (Array.isArray(data)) {\n        for (let i = 0; i < data.length; i++) {\n            data[i] = _reconstructPacket(data[i], buffers);\n        }\n    }\n    else if (typeof data === \"object\") {\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                data[key] = _reconstructPacket(data[key], buffers);\n            }\n        }\n    }\n    return data;\n}\n", "export function on(obj, ev, fn) {\n    obj.on(ev, fn);\n    return function subDestroy() {\n        obj.off(ev, fn);\n    };\n}\n", "import { PacketType } from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\n/**\n * Internal events.\n * These events can't be emitted by the user.\n */\nconst RESERVED_EVENTS = Object.freeze({\n    connect: 1,\n    connect_error: 1,\n    disconnect: 1,\n    disconnecting: 1,\n    // EventEmitter reserved events: https://nodejs.org/api/events.html#events_event_newlistener\n    newListener: 1,\n    removeListener: 1,\n});\n/**\n * A Socket is the fundamental class for interacting with the server.\n *\n * A Socket belongs to a certain Namespace (by default /) and uses an underlying {@link Manager} to communicate.\n *\n * @example\n * const socket = io();\n *\n * socket.on(\"connect\", () => {\n *   console.log(\"connected\");\n * });\n *\n * // send an event to the server\n * socket.emit(\"foo\", \"bar\");\n *\n * socket.on(\"foobar\", () => {\n *   // an event was received from the server\n * });\n *\n * // upon disconnection\n * socket.on(\"disconnect\", (reason) => {\n *   console.log(`disconnected due to ${reason}`);\n * });\n */\nexport class Socket extends Emitter {\n    /**\n     * `Socket` constructor.\n     */\n    constructor(io, nsp, opts) {\n        super();\n        /**\n         * Whether the socket is currently connected to the server.\n         *\n         * @example\n         * const socket = io();\n         *\n         * socket.on(\"connect\", () => {\n         *   console.log(socket.connected); // true\n         * });\n         *\n         * socket.on(\"disconnect\", () => {\n         *   console.log(socket.connected); // false\n         * });\n         */\n        this.connected = false;\n        /**\n         * Whether the connection state was recovered after a temporary disconnection. In that case, any missed packets will\n         * be transmitted by the server.\n         */\n        this.recovered = false;\n        /**\n         * Buffer for packets received before the CONNECT packet\n         */\n        this.receiveBuffer = [];\n        /**\n         * Buffer for packets that will be sent once the socket is connected\n         */\n        this.sendBuffer = [];\n        /**\n         * The queue of packets to be sent with retry in case of failure.\n         *\n         * Packets are sent one by one, each waiting for the server acknowledgement, in order to guarantee the delivery order.\n         * @private\n         */\n        this._queue = [];\n        /**\n         * A sequence to generate the ID of the {@link QueuedPacket}.\n         * @private\n         */\n        this._queueSeq = 0;\n        this.ids = 0;\n        this.acks = {};\n        this.flags = {};\n        this.io = io;\n        this.nsp = nsp;\n        if (opts && opts.auth) {\n            this.auth = opts.auth;\n        }\n        this._opts = Object.assign({}, opts);\n        if (this.io._autoConnect)\n            this.open();\n    }\n    /**\n     * Whether the socket is currently disconnected\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"connect\", () => {\n     *   console.log(socket.disconnected); // false\n     * });\n     *\n     * socket.on(\"disconnect\", () => {\n     *   console.log(socket.disconnected); // true\n     * });\n     */\n    get disconnected() {\n        return !this.connected;\n    }\n    /**\n     * Subscribe to open, close and packet events\n     *\n     * @private\n     */\n    subEvents() {\n        if (this.subs)\n            return;\n        const io = this.io;\n        this.subs = [\n            on(io, \"open\", this.onopen.bind(this)),\n            on(io, \"packet\", this.onpacket.bind(this)),\n            on(io, \"error\", this.onerror.bind(this)),\n            on(io, \"close\", this.onclose.bind(this)),\n        ];\n    }\n    /**\n     * Whether the Socket will try to reconnect when its Manager connects or reconnects.\n     *\n     * @example\n     * const socket = io();\n     *\n     * console.log(socket.active); // true\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   if (reason === \"io server disconnect\") {\n     *     // the disconnection was initiated by the server, you need to manually reconnect\n     *     console.log(socket.active); // false\n     *   }\n     *   // else the socket will automatically try to reconnect\n     *   console.log(socket.active); // true\n     * });\n     */\n    get active() {\n        return !!this.subs;\n    }\n    /**\n     * \"Opens\" the socket.\n     *\n     * @example\n     * const socket = io({\n     *   autoConnect: false\n     * });\n     *\n     * socket.connect();\n     */\n    connect() {\n        if (this.connected)\n            return this;\n        this.subEvents();\n        if (!this.io[\"_reconnecting\"])\n            this.io.open(); // ensure open\n        if (\"open\" === this.io._readyState)\n            this.onopen();\n        return this;\n    }\n    /**\n     * Alias for {@link connect()}.\n     */\n    open() {\n        return this.connect();\n    }\n    /**\n     * Sends a `message` event.\n     *\n     * This method mimics the WebSocket.send() method.\n     *\n     * @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send\n     *\n     * @example\n     * socket.send(\"hello\");\n     *\n     * // this is equivalent to\n     * socket.emit(\"message\", \"hello\");\n     *\n     * @return self\n     */\n    send(...args) {\n        args.unshift(\"message\");\n        this.emit.apply(this, args);\n        return this;\n    }\n    /**\n     * Override `emit`.\n     * If the event is in `events`, it's emitted normally.\n     *\n     * @example\n     * socket.emit(\"hello\", \"world\");\n     *\n     * // all serializable datastructures are supported (no need to call JSON.stringify)\n     * socket.emit(\"hello\", 1, \"2\", { 3: [\"4\"], 5: Uint8Array.from([6]) });\n     *\n     * // with an acknowledgement from the server\n     * socket.emit(\"hello\", \"world\", (val) => {\n     *   // ...\n     * });\n     *\n     * @return self\n     */\n    emit(ev, ...args) {\n        if (RESERVED_EVENTS.hasOwnProperty(ev)) {\n            throw new Error('\"' + ev.toString() + '\" is a reserved event name');\n        }\n        args.unshift(ev);\n        if (this._opts.retries && !this.flags.fromQueue && !this.flags.volatile) {\n            this._addToQueue(args);\n            return this;\n        }\n        const packet = {\n            type: PacketType.EVENT,\n            data: args,\n        };\n        packet.options = {};\n        packet.options.compress = this.flags.compress !== false;\n        // event ack callback\n        if (\"function\" === typeof args[args.length - 1]) {\n            const id = this.ids++;\n            const ack = args.pop();\n            this._registerAckCallback(id, ack);\n            packet.id = id;\n        }\n        const isTransportWritable = this.io.engine &&\n            this.io.engine.transport &&\n            this.io.engine.transport.writable;\n        const discardPacket = this.flags.volatile && (!isTransportWritable || !this.connected);\n        if (discardPacket) {\n        }\n        else if (this.connected) {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        }\n        else {\n            this.sendBuffer.push(packet);\n        }\n        this.flags = {};\n        return this;\n    }\n    /**\n     * @private\n     */\n    _registerAckCallback(id, ack) {\n        var _a;\n        const timeout = (_a = this.flags.timeout) !== null && _a !== void 0 ? _a : this._opts.ackTimeout;\n        if (timeout === undefined) {\n            this.acks[id] = ack;\n            return;\n        }\n        // @ts-ignore\n        const timer = this.io.setTimeoutFn(() => {\n            delete this.acks[id];\n            for (let i = 0; i < this.sendBuffer.length; i++) {\n                if (this.sendBuffer[i].id === id) {\n                    this.sendBuffer.splice(i, 1);\n                }\n            }\n            ack.call(this, new Error(\"operation has timed out\"));\n        }, timeout);\n        this.acks[id] = (...args) => {\n            // @ts-ignore\n            this.io.clearTimeoutFn(timer);\n            ack.apply(this, [null, ...args]);\n        };\n    }\n    /**\n     * Emits an event and waits for an acknowledgement\n     *\n     * @example\n     * // without timeout\n     * const response = await socket.emitWithAck(\"hello\", \"world\");\n     *\n     * // with a specific timeout\n     * try {\n     *   const response = await socket.timeout(1000).emitWithAck(\"hello\", \"world\");\n     * } catch (err) {\n     *   // the server did not acknowledge the event in the given delay\n     * }\n     *\n     * @return a Promise that will be fulfilled when the server acknowledges the event\n     */\n    emitWithAck(ev, ...args) {\n        // the timeout flag is optional\n        const withErr = this.flags.timeout !== undefined || this._opts.ackTimeout !== undefined;\n        return new Promise((resolve, reject) => {\n            args.push((arg1, arg2) => {\n                if (withErr) {\n                    return arg1 ? reject(arg1) : resolve(arg2);\n                }\n                else {\n                    return resolve(arg1);\n                }\n            });\n            this.emit(ev, ...args);\n        });\n    }\n    /**\n     * Add the packet to the queue.\n     * @param args\n     * @private\n     */\n    _addToQueue(args) {\n        let ack;\n        if (typeof args[args.length - 1] === \"function\") {\n            ack = args.pop();\n        }\n        const packet = {\n            id: this._queueSeq++,\n            tryCount: 0,\n            pending: false,\n            args,\n            flags: Object.assign({ fromQueue: true }, this.flags),\n        };\n        args.push((err, ...responseArgs) => {\n            if (packet !== this._queue[0]) {\n                // the packet has already been acknowledged\n                return;\n            }\n            const hasError = err !== null;\n            if (hasError) {\n                if (packet.tryCount > this._opts.retries) {\n                    this._queue.shift();\n                    if (ack) {\n                        ack(err);\n                    }\n                }\n            }\n            else {\n                this._queue.shift();\n                if (ack) {\n                    ack(null, ...responseArgs);\n                }\n            }\n            packet.pending = false;\n            return this._drainQueue();\n        });\n        this._queue.push(packet);\n        this._drainQueue();\n    }\n    /**\n     * Send the first packet of the queue, and wait for an acknowledgement from the server.\n     * @param force - whether to resend a packet that has not been acknowledged yet\n     *\n     * @private\n     */\n    _drainQueue(force = false) {\n        if (!this.connected || this._queue.length === 0) {\n            return;\n        }\n        const packet = this._queue[0];\n        if (packet.pending && !force) {\n            return;\n        }\n        packet.pending = true;\n        packet.tryCount++;\n        this.flags = packet.flags;\n        this.emit.apply(this, packet.args);\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param packet\n     * @private\n     */\n    packet(packet) {\n        packet.nsp = this.nsp;\n        this.io._packet(packet);\n    }\n    /**\n     * Called upon engine `open`.\n     *\n     * @private\n     */\n    onopen() {\n        if (typeof this.auth == \"function\") {\n            this.auth((data) => {\n                this._sendConnectPacket(data);\n            });\n        }\n        else {\n            this._sendConnectPacket(this.auth);\n        }\n    }\n    /**\n     * Sends a CONNECT packet to initiate the Socket.IO session.\n     *\n     * @param data\n     * @private\n     */\n    _sendConnectPacket(data) {\n        this.packet({\n            type: PacketType.CONNECT,\n            data: this._pid\n                ? Object.assign({ pid: this._pid, offset: this._lastOffset }, data)\n                : data,\n        });\n    }\n    /**\n     * Called upon engine or manager `error`.\n     *\n     * @param err\n     * @private\n     */\n    onerror(err) {\n        if (!this.connected) {\n            this.emitReserved(\"connect_error\", err);\n        }\n    }\n    /**\n     * Called upon engine `close`.\n     *\n     * @param reason\n     * @param description\n     * @private\n     */\n    onclose(reason, description) {\n        this.connected = false;\n        delete this.id;\n        this.emitReserved(\"disconnect\", reason, description);\n    }\n    /**\n     * Called with socket packet.\n     *\n     * @param packet\n     * @private\n     */\n    onpacket(packet) {\n        const sameNamespace = packet.nsp === this.nsp;\n        if (!sameNamespace)\n            return;\n        switch (packet.type) {\n            case PacketType.CONNECT:\n                if (packet.data && packet.data.sid) {\n                    this.onconnect(packet.data.sid, packet.data.pid);\n                }\n                else {\n                    this.emitReserved(\"connect_error\", new Error(\"It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)\"));\n                }\n                break;\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                this.onevent(packet);\n                break;\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                this.onack(packet);\n                break;\n            case PacketType.DISCONNECT:\n                this.ondisconnect();\n                break;\n            case PacketType.CONNECT_ERROR:\n                this.destroy();\n                const err = new Error(packet.data.message);\n                // @ts-ignore\n                err.data = packet.data.data;\n                this.emitReserved(\"connect_error\", err);\n                break;\n        }\n    }\n    /**\n     * Called upon a server event.\n     *\n     * @param packet\n     * @private\n     */\n    onevent(packet) {\n        const args = packet.data || [];\n        if (null != packet.id) {\n            args.push(this.ack(packet.id));\n        }\n        if (this.connected) {\n            this.emitEvent(args);\n        }\n        else {\n            this.receiveBuffer.push(Object.freeze(args));\n        }\n    }\n    emitEvent(args) {\n        if (this._anyListeners && this._anyListeners.length) {\n            const listeners = this._anyListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, args);\n            }\n        }\n        super.emit.apply(this, args);\n        if (this._pid && args.length && typeof args[args.length - 1] === \"string\") {\n            this._lastOffset = args[args.length - 1];\n        }\n    }\n    /**\n     * Produces an ack callback to emit with an event.\n     *\n     * @private\n     */\n    ack(id) {\n        const self = this;\n        let sent = false;\n        return function (...args) {\n            // prevent double callbacks\n            if (sent)\n                return;\n            sent = true;\n            self.packet({\n                type: PacketType.ACK,\n                id: id,\n                data: args,\n            });\n        };\n    }\n    /**\n     * Called upon a server acknowlegement.\n     *\n     * @param packet\n     * @private\n     */\n    onack(packet) {\n        const ack = this.acks[packet.id];\n        if (\"function\" === typeof ack) {\n            ack.apply(this, packet.data);\n            delete this.acks[packet.id];\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon server connect.\n     *\n     * @private\n     */\n    onconnect(id, pid) {\n        this.id = id;\n        this.recovered = pid && this._pid === pid;\n        this._pid = pid; // defined only if connection state recovery is enabled\n        this.connected = true;\n        this.emitBuffered();\n        this.emitReserved(\"connect\");\n        this._drainQueue(true);\n    }\n    /**\n     * Emit buffered events (received and emitted).\n     *\n     * @private\n     */\n    emitBuffered() {\n        this.receiveBuffer.forEach((args) => this.emitEvent(args));\n        this.receiveBuffer = [];\n        this.sendBuffer.forEach((packet) => {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        });\n        this.sendBuffer = [];\n    }\n    /**\n     * Called upon server disconnect.\n     *\n     * @private\n     */\n    ondisconnect() {\n        this.destroy();\n        this.onclose(\"io server disconnect\");\n    }\n    /**\n     * Called upon forced client/server side disconnections,\n     * this method ensures the manager stops tracking us and\n     * that reconnections don't get triggered for this.\n     *\n     * @private\n     */\n    destroy() {\n        if (this.subs) {\n            // clean subscriptions to avoid reconnections\n            this.subs.forEach((subDestroy) => subDestroy());\n            this.subs = undefined;\n        }\n        this.io[\"_destroy\"](this);\n    }\n    /**\n     * Disconnects the socket manually. In that case, the socket will not try to reconnect.\n     *\n     * If this is the last active Socket instance of the {@link Manager}, the low-level connection will be closed.\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   // console.log(reason); prints \"io client disconnect\"\n     * });\n     *\n     * socket.disconnect();\n     *\n     * @return self\n     */\n    disconnect() {\n        if (this.connected) {\n            this.packet({ type: PacketType.DISCONNECT });\n        }\n        // remove socket from pool\n        this.destroy();\n        if (this.connected) {\n            // fire events\n            this.onclose(\"io client disconnect\");\n        }\n        return this;\n    }\n    /**\n     * Alias for {@link disconnect()}.\n     *\n     * @return self\n     */\n    close() {\n        return this.disconnect();\n    }\n    /**\n     * Sets the compress flag.\n     *\n     * @example\n     * socket.compress(false).emit(\"hello\");\n     *\n     * @param compress - if `true`, compresses the sending data\n     * @return self\n     */\n    compress(compress) {\n        this.flags.compress = compress;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the event message will be dropped when this socket is not\n     * ready to send messages.\n     *\n     * @example\n     * socket.volatile.emit(\"hello\"); // the server may or may not receive it\n     *\n     * @returns self\n     */\n    get volatile() {\n        this.flags.volatile = true;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the callback will be called with an error when the\n     * given number of milliseconds have elapsed without an acknowledgement from the server:\n     *\n     * @example\n     * socket.timeout(5000).emit(\"my-event\", (err) => {\n     *   if (err) {\n     *     // the server did not acknowledge the event in the given delay\n     *   }\n     * });\n     *\n     * @returns self\n     */\n    timeout(timeout) {\n        this.flags.timeout = timeout;\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * @example\n     * socket.onAny((event, ...args) => {\n     *   console.log(`got ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * @example\n     * socket.prependAny((event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * }\n     *\n     * socket.onAny(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAny(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAny();\n     *\n     * @param listener\n     */\n    offAny(listener) {\n        if (!this._anyListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAny() {\n        return this._anyListeners || [];\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.onAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.prependAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * }\n     *\n     * socket.onAnyOutgoing(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAnyOutgoing(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAnyOutgoing();\n     *\n     * @param [listener] - the catch-all listener (optional)\n     */\n    offAnyOutgoing(listener) {\n        if (!this._anyOutgoingListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyOutgoingListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyOutgoingListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAnyOutgoing() {\n        return this._anyOutgoingListeners || [];\n    }\n    /**\n     * Notify the listeners for each packet sent\n     *\n     * @param packet\n     *\n     * @private\n     */\n    notifyOutgoingListeners(packet) {\n        if (this._anyOutgoingListeners && this._anyOutgoingListeners.length) {\n            const listeners = this._anyOutgoingListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, packet.data);\n            }\n        }\n    }\n}\n", "/**\n * Initialize backoff timer with `opts`.\n *\n * - `min` initial timeout in milliseconds [100]\n * - `max` max timeout [10000]\n * - `jitter` [0]\n * - `factor` [2]\n *\n * @param {Object} opts\n * @api public\n */\nexport function Backoff(opts) {\n    opts = opts || {};\n    this.ms = opts.min || 100;\n    this.max = opts.max || 10000;\n    this.factor = opts.factor || 2;\n    this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;\n    this.attempts = 0;\n}\n/**\n * Return the backoff duration.\n *\n * @return {Number}\n * @api public\n */\nBackoff.prototype.duration = function () {\n    var ms = this.ms * Math.pow(this.factor, this.attempts++);\n    if (this.jitter) {\n        var rand = Math.random();\n        var deviation = Math.floor(rand * this.jitter * ms);\n        ms = (Math.floor(rand * 10) & 1) == 0 ? ms - deviation : ms + deviation;\n    }\n    return Math.min(ms, this.max) | 0;\n};\n/**\n * Reset the number of attempts.\n *\n * @api public\n */\nBackoff.prototype.reset = function () {\n    this.attempts = 0;\n};\n/**\n * Set the minimum duration\n *\n * @api public\n */\nBackoff.prototype.setMin = function (min) {\n    this.ms = min;\n};\n/**\n * Set the maximum duration\n *\n * @api public\n */\nBackoff.prototype.setMax = function (max) {\n    this.max = max;\n};\n/**\n * Set the jitter\n *\n * @api public\n */\nBackoff.prototype.setJitter = function (jitter) {\n    this.jitter = jitter;\n};\n", "import { Socket as Engine, installTimerFunctions, nextTick, } from \"engine.io-client\";\nimport { Socket } from \"./socket.js\";\nimport * as parser from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Backoff } from \"./contrib/backo2.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\nexport class Manager extends Emitter {\n    constructor(uri, opts) {\n        var _a;\n        super();\n        this.nsps = {};\n        this.subs = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = undefined;\n        }\n        opts = opts || {};\n        opts.path = opts.path || \"/socket.io\";\n        this.opts = opts;\n        installTimerFunctions(this, opts);\n        this.reconnection(opts.reconnection !== false);\n        this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);\n        this.reconnectionDelay(opts.reconnectionDelay || 1000);\n        this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);\n        this.randomizationFactor((_a = opts.randomizationFactor) !== null && _a !== void 0 ? _a : 0.5);\n        this.backoff = new Backoff({\n            min: this.reconnectionDelay(),\n            max: this.reconnectionDelayMax(),\n            jitter: this.randomizationFactor(),\n        });\n        this.timeout(null == opts.timeout ? 20000 : opts.timeout);\n        this._readyState = \"closed\";\n        this.uri = uri;\n        const _parser = opts.parser || parser;\n        this.encoder = new _parser.Encoder();\n        this.decoder = new _parser.Decoder();\n        this._autoConnect = opts.autoConnect !== false;\n        if (this._autoConnect)\n            this.open();\n    }\n    reconnection(v) {\n        if (!arguments.length)\n            return this._reconnection;\n        this._reconnection = !!v;\n        return this;\n    }\n    reconnectionAttempts(v) {\n        if (v === undefined)\n            return this._reconnectionAttempts;\n        this._reconnectionAttempts = v;\n        return this;\n    }\n    reconnectionDelay(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelay;\n        this._reconnectionDelay = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMin(v);\n        return this;\n    }\n    randomizationFactor(v) {\n        var _a;\n        if (v === undefined)\n            return this._randomizationFactor;\n        this._randomizationFactor = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setJitter(v);\n        return this;\n    }\n    reconnectionDelayMax(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelayMax;\n        this._reconnectionDelayMax = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMax(v);\n        return this;\n    }\n    timeout(v) {\n        if (!arguments.length)\n            return this._timeout;\n        this._timeout = v;\n        return this;\n    }\n    /**\n     * Starts trying to reconnect if reconnection is enabled and we have not\n     * started reconnecting yet\n     *\n     * @private\n     */\n    maybeReconnectOnOpen() {\n        // Only try to reconnect if it's the first time we're connecting\n        if (!this._reconnecting &&\n            this._reconnection &&\n            this.backoff.attempts === 0) {\n            // keeps reconnection from firing twice for the same reconnection loop\n            this.reconnect();\n        }\n    }\n    /**\n     * Sets the current transport `socket`.\n     *\n     * @param {Function} fn - optional, callback\n     * @return self\n     * @public\n     */\n    open(fn) {\n        if (~this._readyState.indexOf(\"open\"))\n            return this;\n        this.engine = new Engine(this.uri, this.opts);\n        const socket = this.engine;\n        const self = this;\n        this._readyState = \"opening\";\n        this.skipReconnect = false;\n        // emit `open`\n        const openSubDestroy = on(socket, \"open\", function () {\n            self.onopen();\n            fn && fn();\n        });\n        const onError = (err) => {\n            this.cleanup();\n            this._readyState = \"closed\";\n            this.emitReserved(\"error\", err);\n            if (fn) {\n                fn(err);\n            }\n            else {\n                // Only do this if there is no fn to handle the error\n                this.maybeReconnectOnOpen();\n            }\n        };\n        // emit `error`\n        const errorSub = on(socket, \"error\", onError);\n        if (false !== this._timeout) {\n            const timeout = this._timeout;\n            // set timer\n            const timer = this.setTimeoutFn(() => {\n                openSubDestroy();\n                onError(new Error(\"timeout\"));\n                socket.close();\n            }, timeout);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n        this.subs.push(openSubDestroy);\n        this.subs.push(errorSub);\n        return this;\n    }\n    /**\n     * Alias for open()\n     *\n     * @return self\n     * @public\n     */\n    connect(fn) {\n        return this.open(fn);\n    }\n    /**\n     * Called upon transport open.\n     *\n     * @private\n     */\n    onopen() {\n        // clear old subs\n        this.cleanup();\n        // mark as open\n        this._readyState = \"open\";\n        this.emitReserved(\"open\");\n        // add new subs\n        const socket = this.engine;\n        this.subs.push(on(socket, \"ping\", this.onping.bind(this)), on(socket, \"data\", this.ondata.bind(this)), on(socket, \"error\", this.onerror.bind(this)), on(socket, \"close\", this.onclose.bind(this)), on(this.decoder, \"decoded\", this.ondecoded.bind(this)));\n    }\n    /**\n     * Called upon a ping.\n     *\n     * @private\n     */\n    onping() {\n        this.emitReserved(\"ping\");\n    }\n    /**\n     * Called with data.\n     *\n     * @private\n     */\n    ondata(data) {\n        try {\n            this.decoder.add(data);\n        }\n        catch (e) {\n            this.onclose(\"parse error\", e);\n        }\n    }\n    /**\n     * Called when parser fully decodes a packet.\n     *\n     * @private\n     */\n    ondecoded(packet) {\n        // the nextTick call prevents an exception in a user-provided event listener from triggering a disconnection due to a \"parse error\"\n        nextTick(() => {\n            this.emitReserved(\"packet\", packet);\n        }, this.setTimeoutFn);\n    }\n    /**\n     * Called upon socket error.\n     *\n     * @private\n     */\n    onerror(err) {\n        this.emitReserved(\"error\", err);\n    }\n    /**\n     * Creates a new socket for the given `nsp`.\n     *\n     * @return {Socket}\n     * @public\n     */\n    socket(nsp, opts) {\n        let socket = this.nsps[nsp];\n        if (!socket) {\n            socket = new Socket(this, nsp, opts);\n            this.nsps[nsp] = socket;\n        }\n        else if (this._autoConnect && !socket.active) {\n            socket.connect();\n        }\n        return socket;\n    }\n    /**\n     * Called upon a socket close.\n     *\n     * @param socket\n     * @private\n     */\n    _destroy(socket) {\n        const nsps = Object.keys(this.nsps);\n        for (const nsp of nsps) {\n            const socket = this.nsps[nsp];\n            if (socket.active) {\n                return;\n            }\n        }\n        this._close();\n    }\n    /**\n     * Writes a packet.\n     *\n     * @param packet\n     * @private\n     */\n    _packet(packet) {\n        const encodedPackets = this.encoder.encode(packet);\n        for (let i = 0; i < encodedPackets.length; i++) {\n            this.engine.write(encodedPackets[i], packet.options);\n        }\n    }\n    /**\n     * Clean up transport subscriptions and packet buffer.\n     *\n     * @private\n     */\n    cleanup() {\n        this.subs.forEach((subDestroy) => subDestroy());\n        this.subs.length = 0;\n        this.decoder.destroy();\n    }\n    /**\n     * Close the current socket.\n     *\n     * @private\n     */\n    _close() {\n        this.skipReconnect = true;\n        this._reconnecting = false;\n        this.onclose(\"forced close\");\n        if (this.engine)\n            this.engine.close();\n    }\n    /**\n     * Alias for close()\n     *\n     * @private\n     */\n    disconnect() {\n        return this._close();\n    }\n    /**\n     * Called upon engine close.\n     *\n     * @private\n     */\n    onclose(reason, description) {\n        this.cleanup();\n        this.backoff.reset();\n        this._readyState = \"closed\";\n        this.emitReserved(\"close\", reason, description);\n        if (this._reconnection && !this.skipReconnect) {\n            this.reconnect();\n        }\n    }\n    /**\n     * Attempt a reconnection.\n     *\n     * @private\n     */\n    reconnect() {\n        if (this._reconnecting || this.skipReconnect)\n            return this;\n        const self = this;\n        if (this.backoff.attempts >= this._reconnectionAttempts) {\n            this.backoff.reset();\n            this.emitReserved(\"reconnect_failed\");\n            this._reconnecting = false;\n        }\n        else {\n            const delay = this.backoff.duration();\n            this._reconnecting = true;\n            const timer = this.setTimeoutFn(() => {\n                if (self.skipReconnect)\n                    return;\n                this.emitReserved(\"reconnect_attempt\", self.backoff.attempts);\n                // check again for the case socket closed in above events\n                if (self.skipReconnect)\n                    return;\n                self.open((err) => {\n                    if (err) {\n                        self._reconnecting = false;\n                        self.reconnect();\n                        this.emitReserved(\"reconnect_error\", err);\n                    }\n                    else {\n                        self.onreconnect();\n                    }\n                });\n            }, delay);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n    }\n    /**\n     * Called upon successful reconnect.\n     *\n     * @private\n     */\n    onreconnect() {\n        const attempt = this.backoff.attempts;\n        this._reconnecting = false;\n        this.backoff.reset();\n        this.emitReserved(\"reconnect\", attempt);\n    }\n}\n", "import { url } from \"./url.js\";\nimport { Manager } from \"./manager.js\";\nimport { Socket } from \"./socket.js\";\n/**\n * Managers cache.\n */\nconst cache = {};\nfunction lookup(uri, opts) {\n    if (typeof uri === \"object\") {\n        opts = uri;\n        uri = undefined;\n    }\n    opts = opts || {};\n    const parsed = url(uri, opts.path || \"/socket.io\");\n    const source = parsed.source;\n    const id = parsed.id;\n    const path = parsed.path;\n    const sameNamespace = cache[id] && path in cache[id][\"nsps\"];\n    const newConnection = opts.forceNew ||\n        opts[\"force new connection\"] ||\n        false === opts.multiplex ||\n        sameNamespace;\n    let io;\n    if (newConnection) {\n        io = new Manager(source, opts);\n    }\n    else {\n        if (!cache[id]) {\n            cache[id] = new Manager(source, opts);\n        }\n        io = cache[id];\n    }\n    if (parsed.query && !opts.query) {\n        opts.query = parsed.queryKey;\n    }\n    return io.socket(parsed.path, opts);\n}\n// so that \"lookup\" can be used both as a function (e.g. `io(...)`) and as a\n// namespace (e.g. `io.connect(...)`), for backward compatibility\nObject.assign(lookup, {\n    Manager,\n    Socket,\n    io: lookup,\n    connect: lookup,\n});\n/**\n * Protocol version.\n *\n * @public\n */\nexport { protocol } from \"socket.io-parser\";\n/**\n * Expose constructors for standalone build.\n *\n * @public\n */\nexport { Manager, Socket, lookup as io, lookup as connect, lookup as default, };\n"],
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"delay", "factor", "depth", "reason", "lookup", "options", "eMsg", "uibuilder", "uibuilder_module_default", "uibuilder", "UibVar"]
+  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\n// Namespaces - See https://stackoverflow.com/a/52572048/1309986\n// const NAMESPACES = {\n//     svg: 'http://www.w3.org/2000/svg',\n//     html: 'http://www.w3.org/1999/xhtml',\n//     xml: 'http://www.w3.org/XML/1998/namespace',\n//     xlink: 'http://www.w3.org/1999/xlink',\n//     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n// }\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    //#region ---- Internal Methods ----\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                if (attrib === 'class' && Array.isArray(comp.attributes[attrib])) comp.attributes[attrib].join(' ')\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n    } // --- end of _uiManager ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    //#endregion ---- -------- ----\n    //#region ---- External Methods ----\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {HTMLElement|null} Selected HTML element or null\n     */\n    $(cssSelector) {\n        /** @type {*} Some kind of HTML element */\n        let el = document.querySelector(cssSelector)\n\n        if (!el) {\n            Ui.log(1, 'Uib:$', `No element found for CSS selector ${cssSelector}`)()\n            return null\n        }\n\n        if ( el.nodeName === 'TEMPLATE' ) {\n            el = el.content.firstElementChild\n            if (!el) {\n                Ui.log(0, 'Uib:$', `Template selected for CSS selector ${cssSelector} but it is empty`)()\n                return null\n            }\n        }\n\n        return el\n    }\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {string} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {HTMLElement[]} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$(cssSelector) {\n        return Array.from(document.querySelectorAll(cssSelector))\n    }\n\n    /** Add 1 or several class names to an element\n     * @param {string|string[]} classNames Single or array of classnames\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    addClass(classNames, el) {\n        if (!Array.isArray(classNames)) classNames = [classNames]\n        if (el) el.classList.add(...classNames)\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n                if (attrib.name === 'class') thisOut.classes = Array.from(node.classList)\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    /** Remove All, 1 or more class names from an element\n     * @param {undefined|null|\"\"|string|string[]} classNames Single or array of classnames. If undefined, \"\" or null, remove all classes\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    removeClass(classNames, el) {\n        if (!classNames) {\n            el.removeAttribute('class')\n            return\n        }\n        if (!Array.isArray(classNames)) classNames = [classNames]\n        if (el) el.classList.remove(...classNames)\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += `<div>${msg.payload}</div>`\n        if (ui.content) content += `<div>${ui.content}</div>`\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        console.log(this)\n        this._uiManager(msg)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName) {\n                if (propName === 'classes') propName = 'class'\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    const p = {}\n                    // Nightmare of different object types in a DOM Element!\n                    const cType = prop.constructor.name.toLowerCase()\n                    if (cType === 'namednodemap') {\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                    } else if (!cType.includes('map')) { // Ordinary properties (not a mapped type)\n                        p[propName] = prop\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                    }\n                    if (p.class) p.classes = Array.from(node.classList)\n                    out.push(p)\n                }\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    /** External alias for _uiComposeComponent\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    //#endregion ---- -------- ----\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n", "/* This is the Front-End JavaScript for uibuilder  in HTML Module form\n  It provides a number of global objects that can be used in your own javascript.\n  see the docs folder `./docs/uibuilder.module.md` for details of how to use this fully.\n\n  Please use the default index.js file for your own code and leave this as-is.\n  See Uib._meta for client version string\n\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n//#region --- Type Defs --- //\n/**\n * A string containing HTML markup\n * @typedef {string} html\n */\n//#endregion --- Type Defs --- //\n\n//#region --- We need the Socket.IO & ui libraries & the uib-var component  --- //\n// @ts-ignore - Note: Only works when using esbuild to bundle\nimport Ui from './ui'\nimport UibVar from '../components/uib-var'\nimport io from 'socket.io-client'\n\n// TODO - Maybe - check if already loaded as window['io']?\n// TODO - Maybe - Should this be moved to inside the class - would know the httpRoot then so less need to guess?\n// TODO           Or, could pull the cookie processing out of the class\n// const ioLocns = [ // Likely locations of the Socket.IO client library\n//     // Where it should normally be\n//     '../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and haven't changed httpNodeRoot\n//     '/uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and have changed httpNodeRoot\n//     '../../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Direct from the Internet - last ditch attempt\n//     'https://cdn.jsdelivr.net/npm/socket.io-client/+esm',\n// ]\n\n// let io\n// for (const locn of ioLocns) {\n//     try {\n//         ({ io } = await import(locn))\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library found at '${locn}'`)()\n//     } catch (e) {\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library not found at '${locn}'`)()\n//     }\n//     if (io) break\n// }\n// if (!io) log('error', 'uibuilder.module.js', 'Socket.IO client failed to load')()\n//#endregion -------- -------- -------- //\n\nconst version = '6.8.0-src'\n\n// TODO Add option to allow log events to be sent back to Node-RED as uib ctrl msgs\n//#region --- Module-level utility functions --- //\n\n// @ts-ignore Detect whether the loaded library is minified or not\nconst isMinified = !(/param/).test(function (param) { }) // eslint-disable-line no-unused-vars\n\n//#region --- print/console - debugging output functions --- //\n\n/** Default log level - Error & Warn */\nlet logLevel = isMinified ? 0 : 1  // When using minified lib, assume production and only log errors otherwise also log warn\n// function changeLogLevel(level) {\n//     logLevel = level\n//     console.trace = logLevel < 4 ? function(){} : console.trace\n//     console.debug = logLevel < 2 ? function(){} : console.debug\n//     if ( logLevel < 1 ) {\n//         console.log = console.group = console.groupEnd =  function(){}\n//     }\n// }\n\n// Experimental\nconst LOG_STYLES = {\n    // 0\n    error: {\n        css: 'background: red; color: black;',\n        txtCss: 'color: red; ',\n        pre: '\u26D4 ',\n        console: 'error',  // or trace\n    },\n    // 1\n    warn: {\n        css: 'background: darkorange; color: black;',\n        txtCss: 'color: darkorange; ',\n        pre: '\u26A0 ',\n        console: 'warn',\n    },\n    // 2\n    info: {\n        css: 'background: aqua; color: black;',\n        txtCss: 'color: aqua;',\n        pre: '\u2757 ',\n        console: 'info',\n    },\n    // 3\n    log: {\n        css: 'background: grey; color: yellow;',\n        txtCss: 'color: grey;',\n        pre: '',\n        console: 'log',\n    },\n    // 4\n    debug: {\n        css: 'background: chartreuse; color: black;',\n        txtCss: 'color: chartreuse;',\n        pre: '',\n        console: 'debug',\n    },\n    // 5\n    trace: {\n        css: 'background: indigo; color: yellow;',\n        txtCss: 'color: hotpink;',\n        pre: '',\n        console: 'log',\n    },\n\n    names: ['error', 'warn', 'info', 'log', 'debug', 'trace'],\n    reset: 'color: inherit;',\n    head: 'font-weight:bold; font-style:italic;',\n    level: 'font-weight:bold; border-radius: 3px; padding: 2px 5px; display:inline-block;',\n}\n/** Custom logging. e.g. log(2, 'here:there', 'jiminy', {fred:'jim'})()\n * @returns {Function} Log function @example log(2, 'here:there', 'jiminy', {fred:'jim'})()\n */\nfunction log() {\n    // Get the args\n    const args = Array.prototype.slice.call(arguments)\n\n    // 1st arg is the log level/type\n    let level = args.shift()\n    let strLevel\n    switch (level) {\n        case 'trace':\n        case 5: {\n            if (logLevel < 5) break\n            level = 5 // make sure level is numeric\n            strLevel = 'trace'\n            break\n        }\n\n        case 'debug':\n        case 4: {\n            if (logLevel < 4) break\n            level = 4\n            strLevel = 'debug'\n            break\n        }\n\n        case 'log':\n        case 3: {\n            if (logLevel < 3) break\n            level = 3\n            strLevel = 'log'\n            break\n        }\n\n        case 'info':\n        case '':\n        case 2: {\n            if (logLevel < 2) break\n            level = 2\n            strLevel = 'info'\n            break\n        }\n\n        case 'warn':\n        case 1: {\n            if (logLevel < 1) break\n            level = 1\n            strLevel = 'warn'\n            break\n        }\n\n        case 'error':\n        case 'err':\n        case 0: {\n            if (logLevel < 0) break\n            level = 0\n            strLevel = 'error'\n            break\n        }\n\n        default: {\n            level = -1\n            break\n        }\n\n    }\n\n    // If set to something unknown, no log output\n    if (strLevel === undefined) return function () { }\n\n    // 2nd arg is a heading that will be colour highlighted\n    const head = args.shift()\n\n    // Bind back to console.log (could use console[strLevel] but some levels ignore some formatting, use console.xxx directly or dedicated fn)\n    return Function.prototype.bind.call(\n        console[LOG_STYLES[strLevel].console],\n        console,\n        `%c${LOG_STYLES[strLevel].pre}${strLevel}%c [${head}]`, `${LOG_STYLES.level} ${LOG_STYLES[strLevel].css}`, `${LOG_STYLES.head} ${LOG_STYLES[strLevel].txtCss}`,\n        ...args\n    )\n}\n//#endregion\n\n/** A hack to dynamically load a remote module and wait until it is loaded\n * @param {string} url The URL of the module to load\n * @returns {object|null} Either the result object or null (if the load fails)\n */\n// function loadModule(url) { // eslint-disable-line no-unused-vars\n//     let done\n\n//     import(url)\n//         .then(res => {\n//             log('debug', '>> then >>', res)()\n//             done = res\n//         })\n//         .catch(err => {\n//             console.error(`[uibuilder:loadModule] Could not load module ${url}`, err)\n//             done = null\n//         })\n\n//     //  eslint-disable-next-line no-empty\n//     while (!done) { } // eslint-disable-line no-unmodified-loop-condition\n\n//     return done\n// }\n\n/** Makes a null or non-object into an object\n * If not null, moves \"thing\" to {payload:thing}\n *\n * @param {*} thing Thing to check\n * @param {string} [property='payload'] property that \"thing\" is moved to if not null and not an object\n * @returns {!object} _\n */\nfunction makeMeAnObject(thing, property) {\n    if (!property) property = 'payload'\n    if (typeof property !== 'string') {\n        log('warn', 'uibuilderfe:makeMeAnObject', `WARNING: property parameter must be a string and not: ${typeof property}`)()\n        property = 'payload'\n    }\n    let out = {}\n    if ( thing !== null && thing.constructor.name === 'Object' ) {\n        out = thing\n    } else if (thing !== null) {\n        out[property] = thing\n    }\n    return out\n} // --- End of make me an object --- //\n\n/** Joins all arguments as a URL string\n * see http://stackoverflow.com/a/28592528/3016654\n * since v1.0.10, fixed potential double // issue\n * arguments {string} URL fragments\n * @returns {string} _\n */\nfunction urlJoin() {\n    const paths = Array.prototype.slice.call(arguments)\n    const url = '/' + paths.map(function (e) {\n        return e.replace(/^\\/|\\/$/g, '')\n    })\n        .filter(function (e) {\n            return e\n        })\n        .join('/')\n    return url.replace('//', '/')\n} // ---- End of urlJoin ---- //\n\n/** Convert JSON to Syntax Highlighted HTML\n * @param {object} json A JSON/JavaScript Object\n * @returns {html} Object reformatted as highlighted HTML\n */\nfunction syntaxHighlight(json) {\n    if (json === undefined) {\n        json = '<span class=\"undefined\">undefined</span>'\n    } else {\n        try {\n            json = JSON.stringify(json, undefined, 4)\n            // json = json.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;') // eslint-disable-line newline-per-chained-call\n            json = json.replace(/(\"(\\\\u[a-zA-Z0-9]{4}|\\\\[^u]|[^\\\\\"])*\"(\\s*:)?|\\b(true|false|null)\\b|-?\\d+(?:\\.\\d*)?(?:[eE][+-]?\\d+)?)/g, function (match) { // eslint-disable-line prefer-named-capture-group\n                let cls = 'number'\n                if ((/^\"/).test(match)) {\n                    if ((/:$/).test(match)) {\n                        cls = 'key'\n                    } else {\n                        cls = 'string'\n                    }\n                } else if ((/true|false/).test(match)) {\n                    cls = 'boolean'\n                } else if ((/null/).test(match)) {\n                    cls = 'null'\n                }\n                return `<span class=\"${cls}\">${match}</span>`\n            })\n        } catch (e) {\n            json = `Syntax Highlight ERROR: ${e.message}`\n        }\n    }\n    return json\n}\n\n/** msg._ui handling functions */\nconst _ui = new Ui(window, log, syntaxHighlight)\n\n//#endregion --- Module-level utility functions --- //\n\n/** Define and export the Uib class - note that an instance of the class is also exported in the wrap-up\n * @typicalname uibuilder\n */\nexport const Uib = class Uib {\n\n    //#region --- Static variables ---\n    static _meta = {\n        version: version,\n        type: 'module',\n        displayName: 'uibuilder',\n    }\n    //#endregion ---- ---- ---- ----\n\n    //#region private class vars\n\n    // How many times has the loaded instance connected to Socket.IO (detect if not a new load?)\n    connectedNum = 0\n    // event listener callbacks by property name\n    // #events = {}\n    // Socket.IO channel names\n    _ioChannels = { control: 'uiBuilderControl', client: 'uiBuilderClient', server: 'uiBuilder' }\n    /** setInterval holder for pings @type {function|undefined} */\n    #pingInterval\n    // onChange event callbacks\n    #propChangeCallbacks = {}\n    // onTopic event callbacks\n    #msgRecvdByTopicCallbacks = {}\n    // Is Vue available?\n    isVue = false\n    // What version? Set in startup if Vue is loaded. Won't always work\n    vueVersion = undefined\n    /** setInterval id holder for Socket.IO checkConnect\n     * @type {number|null}\n     */\n    #timerid = null\n    // Holds the reference ID for the internal msg change event handler so that it can be cancelled\n    #MsgHandler\n    // Placeholder for io.socket - can't make a # var until # fns allowed in all browsers\n    _socket\n    // Placeholder for an observer that watches the whole DOM for changes - can't make a # var until # fns allowed in all browsers\n    _htmlObserver\n    // Has showMsg been turned on?\n    #isShowMsg = false\n    // Has showStatus been turned on?\n    #isShowStatus = false\n    // If true, URL hash changes send msg back to node-red. Controlled by watchUrlHash()\n    #sendUrlHash = false\n    // Externally accessible command functions (NB: Case must match) - remember to update _uibCommand for new commands\n    #extCommands = [\n        'elementExists', 'get', 'getManagedVarList', 'getWatchedVars', 'htmlSend', 'include',\n        'navigate', 'scrollTo', 'set', 'showMsg', 'showStatus', 'uiGet', 'uiWatch', 'watchUrlHash',\n    ]\n\n    /** @type {{[key: string]: string}} Managed uibuilder variables */\n    #managedVars = {}\n\n    // What status variables to show via showStatus()\n    #showStatus = {\n        online: { 'var': 'online', 'label': 'Online?', 'description': 'Is the browser online?', },\n        ioConnected: { 'var': 'ioConnected', 'label': 'Socket.IO connected?', 'description': 'Is Socket.IO connected?', },\n        connectedNum: { 'var': 'connectedNum', 'label': '# reconnections', 'description': 'How many times has Socket.IO had to reconnect since last page load?', },\n\n        clientId: { 'var': 'clientId', 'label': 'Client ID', 'description': 'Static client unique id set in Node-RED. Only changes when browser is restarted.', },\n        tabId: { 'var': 'tabId', 'label': 'Browser tab ID', 'description': 'Static unique id for the browser\\'s current tab', },\n        cookies: { 'var': 'cookies', 'label': 'Cookies', 'description': 'Cookies set in Node-RED', },\n        httpNodeRoot: { 'var': 'httpNodeRoot', 'label': 'httpNodeRoot', 'description': 'From Node-RED\\' settings.js, affects URL\\'s. May be wrong for pages in sub-folders', },\n        pageName: { 'var': 'pageName', 'label': 'Page name', 'description': 'Actual name of this page', },\n\n        ioNamespace: { 'var': 'ioNamespace', 'label': 'SIO namespace', 'description': 'Socket.IO namespace - unique to each uibuilder node instance', },\n        // ioPath: { 'var': 'ioPath', 'label': 'SIO path', 'description': '', }, // no longer needed in the modern client\n        socketError: { 'var': 'socketError', 'label': 'Socket error', 'description': 'If the Socket.IO connection has failed, says why', },\n\n        msgsSent: { 'var': 'msgsSent', 'label': '# msgs sent', 'description': 'How many standard messages have been sent to Node-RED?', },\n        msgsReceived: { 'var': 'msgsReceived', 'label': '# msgs received', 'description': 'How many standard messages have been received from Node-RED?', },\n        msgsSentCtrl: { 'var': 'msgsSentCtrl', 'label': '# control msgs sent', 'description': 'How many control messages have been sent to Node-RED?', },\n        msgsCtrlReceived: { 'var': 'msgsCtrlReceived', 'label': '# control msgs received', 'description': 'How many control messages have been received from Node-RED?', },\n        originator: { 'var': 'originator', 'label': 'Node Originator', 'description': 'If the last msg from Node-RED was from a `uib-sender` node, this will be its node id so that messasges can be returned to it', },\n        topic: { 'var': 'topic', 'label': 'Default topic', 'description': 'Optional default topic to be included in outgoing standard messages', },\n\n        started: { 'var': 'started', 'label': 'Has uibuilder client started?', 'description': 'Whether `uibuilder.start()` ran successfully. This should self-run and should not need to be run manually', },\n        version: { 'var': 'version', 'label': 'uibuilder client version', 'description': 'The version of the loaded uibuilder client library', },\n        serverTimeOffset: { 'var': 'serverTimeOffset', 'label': 'Server time offset (Hrs)', 'description': 'The number of hours difference between the Node-red server and the client', },\n    }\n\n    // Track ui observers (see uiWatch)\n    #uiObservers = {}\n\n    //#endregion\n\n    //#region public class vars\n\n    // TODO Move to proper getters\n    //#region ---- Externally read-only (via .get method) ---- //\n    // version - moved to _meta\n    /** Client ID set by uibuilder on connect */\n    clientId = ''\n    /** The collection of cookies provided by uibuilder */\n    cookies = {}\n    /** Copy of last control msg object received from sever */\n    ctrlMsg = {}\n    /** Is Socket.IO client connected to the server? */\n    ioConnected = false\n    // Is the browser tab containing this page visible or not?\n    isVisible = false\n    // Remember the last page (re)load/navigation type: navigate, reload, back_forward, prerender\n    lastNavType = ''\n    /** Last std msg received from Node-RED */\n    msg = {}\n    /** number of messages sent to server since page load */\n    msgsSent = 0\n    /** number of messages received from server since page load */\n    msgsReceived = 0\n    /** number of control messages sent to server since page load */\n    msgsSentCtrl = 0\n    /** number of control messages received from server since page load */\n    msgsCtrlReceived = 0\n    /** Is the client online or offline? */\n    online = navigator.onLine\n    /** last control msg object sent via uibuilder.send() @since v2.0.0-dev3 */\n    sentCtrlMsg = {}\n    /** last std msg object sent via uibuilder.send() */\n    sentMsg = {}\n    /** placeholder to track time offset from server, see fn socket.on(ioChannels.server ...) */\n    serverTimeOffset = null\n    /** placeholder for a socket error message */\n    socketError = null\n    // tab identifier from session storage\n    tabId = ''\n    // Actual name of current page (set in constructor)\n    pageName = null\n    // Is the DOMPurify library loaded? Updated in start()\n    purify = false\n    // Is the Markdown-IT library loaded? Updated in start()\n    markdown = false\n    // Current URL hash. Initial set is done from start->watchHashChanges via a set to make it watched\n    urlHash = location.hash\n    //#endregion ---- ---- ---- ---- //\n\n    // TODO Move to proper getters/setters\n    //#region ---- Externally Writable (via .set method, read via .get method) ---- //\n    /** Default originator node id - empty string by default\n     * @type {string}\n     */\n    originator = ''\n    /** Default topic - used by send if set and no topic provided\n     * @type {(string|undefined)}\n     */\n    topic = undefined\n    //#endregion ---- ---- ---- ---- //\n\n    //#region ---- These are unlikely to be needed externally: ----\n    autoSendReady = true\n    httpNodeRoot = '' // Node-RED setting (via cookie)\n    ioNamespace = ''\n    ioPath = ''\n    retryFactor = 1.5       // starting delay factor for subsequent reconnect attempts\n    retryMs = 2000          // starting retry ms period for manual socket reconnections workaround\n    storePrefix = 'uib_'    // Prefix for all uib-related localStorage\n    started = false\n    // NOTE: These can only change when a client (re)connects\n    socketOptions = {\n        path: this.ioPath,\n        transports: ['polling', 'websocket'],\n        // Using callback so that they are updated automatically on (re)connect\n        // Only put things in here that will be valid for a websocket connected session\n        auth: (cb) => {\n            cb({ // eslint-disable-line n/no-callback-literal\n                clientVersion: version,\n                clientId: this.clientId,\n                pathName: window.location.pathname,\n                urlParams: Object.fromEntries(new URLSearchParams(location.search)),\n                pageName: this.pageName,\n                tabId: this.tabId,\n                lastNavType: this.lastNavType,\n                connectedNum: ++this.connectedNum,\n                // Used to calculate the diff between the server and client connection timestamps - reported if >1 minute\n                browserConnectTimestamp: (new Date()).toISOString(),\n            })\n        },\n        transportOptions: {\n            // Can only set headers when polling\n            polling: {\n                extraHeaders: {\n                    'x-clientid': `${Uib._meta.displayName}; ${Uib._meta.type}; ${Uib._meta.version}; ${this.clientId}`,\n                }\n            },\n        },\n    }\n    //#endregion -- not external --\n\n    //#endregion --- End of variables ---\n\n    //#region ------- Getters and Setters ------- //\n\n    // Change logging level dynamically (affects both console. and print.)\n    set logLevel(level) { logLevel = level; console.log('%c\u2757 info%c [logLevel]', `${LOG_STYLES.level} ${LOG_STYLES.info.css}`, `${LOG_STYLES.head} ${LOG_STYLES.info.txtCss}`, `Set to ${level} (${LOG_STYLES.names[level]})`) /* changeLogLevel(level)*/ }\n    get logLevel() { return logLevel }\n\n    get meta() { return Uib._meta }\n\n    /** Function to set uibuilder properties to a new value - works on any property except _* or #*\n     * Also triggers any event listeners.\n     * Example: this.set('msg', {topic:'uibuilder', payload:42});\n     * @param {string} prop Any uibuilder property who's name does not start with a _ or #\n     * @param {*} val The set value of the property or a string declaring that a protected property cannot be changed\n     * @param {boolean} [store] If true, the variable is also saved to the browser localStorage if possible\n     * @param {boolean} [autoload] If true & store is true, on load, uib will try to restore the value from the store automatically\n     * @returns {*} Input value\n     */\n    set(prop, val, store = false, autoload = false) {\n        // Check for excluded properties - we don't want people to set these\n        // if (this.#excludedSet.indexOf(prop) !== -1) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:set', `Cannot use set() on protected property \"${prop}\"`)()\n            return `Cannot use set() on protected property \"${prop}\"`\n        }\n\n        // We must add the var to the uibuilder object\n        this[prop] = val\n\n        // Keep track of all managed variables\n        this.#managedVars[prop] = prop\n\n        // If requested, save to store\n        if (store === true) this.setStore(prop, val, autoload)\n\n        log('trace', 'Uib:set', `prop set - prop: ${prop}, val: `, val, ` store: ${store}, autoload: ${autoload}`)()\n\n        // Trigger this prop's event callbacks (listeners which are set by this.onChange)\n        // this.emit(prop, val)\n\n        // trigger an event on the prop name, pass both the name and value to the event details\n        this._dispatchCustomEvent('uibuilder:propertyChanged', { 'prop': prop, 'value': val, 'store': store, 'autoload': autoload })\n\n        return val\n    }\n\n    /** Function to get the value of a uibuilder property\n     * Example: uibuilder.get('msg')\n     * @param {string} prop The name of the property to get as long as it does not start with a _ or #\n     * @returns {*|undefined} The current value of the property\n     */\n    get(prop) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:get', `Cannot use get() on protected property \"${prop}\"`)()\n            return\n        }\n        if (prop === 'version') return Uib._meta.version\n        if (prop === 'msgsCtrl') return this.msgsCtrlReceived\n        if (prop === 'reconnections') return this.connectedNum\n        if (this[prop] === undefined) {\n            log('warn', 'Uib:get', `get() - property \"${prop}\" is undefined`)()\n        }\n        return this[prop]\n    }\n\n    /** Write to localStorage if possible. console error output if can't write\n     * Also uses this.storePrefix\n     * @example\n     *   uibuilder.setStore('fred', 42)\n     *   console.log(uibuilder.getStore('fred'))\n     * @param {string} id localStorage var name to be used (prefixed with 'uib_')\n     * @param {*} value value to write to localstore\n     * @param {boolean} [autoload] If true, on load, uib will try to restore the value from the store\n     * @returns {boolean} True if succeeded else false\n     */\n    setStore(id, value, autoload = false) {\n        let autoVars = {}\n        if (autoload === true) {\n            try {\n                autoVars = this.getStore('_uibAutoloadVars') || {}\n            } catch (e) {}\n        }\n        if (typeof value === 'object') {\n            try {\n                value = JSON.stringify(value)\n            } catch (e) {\n                log('error', 'Uib:setStore', 'Cannot stringify object, not storing. ', e)()\n                return false\n            }\n        }\n        try {\n            localStorage.setItem(this.storePrefix + id, value)\n            if (autoload) {\n                autoVars[id] = id\n                try {\n                    localStorage.setItem(this.storePrefix + '_uibAutoloadVars', JSON.stringify(autoVars))\n                } catch (e) {\n                    log('error', 'Uib:setStore', 'Cannot save autoload list. ', e)()\n                }\n            }\n            this._dispatchCustomEvent('uibuilder:propertyStored', { 'prop': id, 'value': value, 'autoload': autoload })\n            return true\n        } catch (e) {\n            log('error', 'Uib:setStore', 'Cannot write to localStorage. ', e)()\n            return false\n        }\n    } // --- end of setStore --- //\n\n    /** Attempt to get and re-hydrate a key value from localStorage\n     * Note that all uib storage is automatically prefixed using this.storePrefix\n     * @param {*} id The key of the value to attempt to retrieve\n     * @returns {*|null|undefined} The re-hydrated value of the key or null if key not found, undefined on error\n     */\n    getStore(id) {\n        try {\n            // @ts-ignore\n            return JSON.parse(localStorage.getItem(this.storePrefix + id))\n        } catch (e) { }\n        try {\n            return localStorage.getItem(this.storePrefix + id)\n        } catch (e) {\n            return undefined\n        }\n    }\n\n    /** Remove a given id from the uib keys in localStorage\n     * @param {*} id The key to remove\n     */\n    removeStore(id) {\n        try {\n            localStorage.removeItem(this.storePrefix + id)\n        } catch (e) { }\n    }\n\n    /** Returns a list of uibuilder properties (variables) that can be watched with onChange\n     * @returns {{[key: string]: string}} List of uibuilder managed variables\n     */\n    getManagedVarList() {\n        return this.#managedVars\n    }\n\n    getWatchedVars() {\n        return Object.keys(this.#propChangeCallbacks)\n    }\n\n    //#endregion ------- -------- ------- //\n\n    //#region ------- Our own event handling system ---------- //\n\n    // TODO Add option to send event details back to Node-RED as uib ctrl msg\n    /** Standard fn to create a custom event with details & dispatch it\n     * @param {string} title The event name\n     * @param {*} details Any details to pass to event output\n     */\n    _dispatchCustomEvent(title, details) {\n        const event = new CustomEvent(title, { detail: details })\n        document.dispatchEvent(event)\n    }\n\n    // See the this.#propChangeCallbacks & msgRecvdByTopicCallbacks private vars\n\n    /** Register on-change event listeners for uibuilder tracked properties\n     * Make it possible to register a function that will be run when the property changes.\n     * Note that you can create listeners for non-existant properties\n     * @example: uibuilder.onChange('msg', (msg) => { console.log('uibuilder.msg changed! It is now: ', msg) })\n     *\n     * @param {string} prop The property of uibuilder that we want to monitor\n     * @param {Function} callback The function that will run when the property changes, parameter is the new value of the property after change\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelChange if you need to remove a listener\n     */\n    onChange(prop, callback) {\n        // Note: Property does not have to exist yet\n\n        // console.debug(`[Uib:onchange] pushing new callback (event listener) for property: ${prop}`)\n\n        // Create a new array or add to the array of callback functions for the property in the events object\n        // if (this.#events[prop]) {\n        //     this.#events[prop].push(callback)\n        // } else {\n        //     this.#events[prop] = [callback]\n        // }\n\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#propChangeCallbacks[prop]) this.#propChangeCallbacks[prop] = { _nextRef: 1 }\n        else this.#propChangeCallbacks[prop]._nextRef++\n\n        const nextCbRef = this.#propChangeCallbacks[prop]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const propChangeCallback = this.#propChangeCallbacks[prop][nextCbRef] = function propChangeCallback(e) {\n            // If the prop name matches the 1st arg in the onChange fn:\n            if (prop === e.detail.prop) {\n                const value = e.detail.value\n                // console.warn('[Uib:onChange:evt] uibuilder:propertyChanged. ', e.detail)\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(value, value)\n            }\n        }\n\n        document.addEventListener('uibuilder:propertyChanged', propChangeCallback)\n\n        return nextCbRef\n    } // ---- End of onChange() ---- //\n\n    cancelChange(prop, cbRef) {\n        document.removeEventListener('uibuilder:propertyChanged', this.#propChangeCallbacks[prop][cbRef])\n        delete this.#propChangeCallbacks[prop][cbRef]\n        // this.#propChangeCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Register a change callback for a specific msg.topic\n     * Similar to onChange but more convenient if needing to differentiate by msg.topic.\n     * @example: let otRef = uibuilder.onTopic('mytopic', function(){ console.log('Received a msg with msg.topic=`mytopic`. msg: ', this) })\n     * To cancel a change listener: uibuilder.cancelTopic('mytopic', otRef)\n     *\n     * @param {string} topic The msg.topic we want to listen for\n     * @param {Function} callback The function that will run when an appropriate msg is received. `this` inside the callback as well as the cb's single argument is the received msg.\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelTopic if you need to remove a listener\n     */\n    onTopic(topic, callback) {\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#msgRecvdByTopicCallbacks[topic]) this.#msgRecvdByTopicCallbacks[topic] = { _nextRef: 1 }\n        else this.#msgRecvdByTopicCallbacks[topic]._nextRef++\n\n        const nextCbRef = this.#msgRecvdByTopicCallbacks[topic]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const msgRecvdEvtCallback = this.#msgRecvdByTopicCallbacks[topic][nextCbRef] = function msgRecvdEvtCallback(e) {\n            const msg = e.detail\n            // console.log('[Uib:onTopic:evt] uibuilder:stdMsgReceived where topic matches. ', e.detail)\n            if (msg.topic === topic) {\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(msg, msg)\n            }\n        }\n\n        document.addEventListener('uibuilder:stdMsgReceived', msgRecvdEvtCallback)\n\n        return nextCbRef\n    }\n\n    cancelTopic(topic, cbRef) {\n        document.removeEventListener('uibuilder:stdMsgReceived', this.#msgRecvdByTopicCallbacks[topic][cbRef])\n        delete this.#msgRecvdByTopicCallbacks[topic][cbRef]\n        // this.#msgRecvdCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Trigger event listener for a given property\n     * Called when uibuilder.set is used\n     *\n     * @param {*} prop The property for which to run the callback functions\n     * arguments: Additional arguments contain the value to pass to the event callback (e.g. newValue)\n     */\n    // emit(prop) {\n    //     var evt = this.#events[prop]\n    //     if (!evt) {\n    //         return\n    //     }\n    //     var args = Array.prototype.slice.call(arguments, 1)\n    //     for (var i = 0; i < evt.length; i++) {\n    //         evt[i].apply(this, args)\n    //     }\n    //     log('trace', 'Uib:emit', `${evt.length} listeners run for prop ${prop} `)()\n    // }\n\n    /** Forcibly removes all event listeners from the events array\n     * Use if you need to re-initialise the environment\n     */\n    // clearEventListeners() {\n    //     this.#events = []\n    // } // ---- End of clearEventListeners() ---- //\n\n    /** Clear a single property event listeners\n     * @param {string} prop The property of uibuilder for which we want to clear the event listener\n     */\n    // clearListener(prop) {\n    //     if (this.#events[prop]) delete this.#events[prop]\n    // }\n\n    //#endregion ---------- End of event handling system ---------- //\n\n    //#region ------- General Utility Functions -------- //\n\n    /** Check supplied msg from server for a timestamp - if received, work out & store difference to browser time\n     * @param {object} receivedMsg A message object recieved from Node-RED\n     * @returns {void} Updates self.serverTimeOffset if different to previous value\n     */\n    _checkTimestamp(receivedMsg) {\n        if (Object.prototype.hasOwnProperty.call(receivedMsg, 'serverTimestamp')) {\n            const serverTimestamp = new Date(receivedMsg.serverTimestamp)\n            // @ts-ignore\n            const offset = Math.round(((new Date()) - serverTimestamp) / 3600000) // in ms /3.6m to get hours\n            if (offset !== this.serverTimeOffset) {\n                log('trace', `Uib:checkTimestamp:${this._ioChannels.server} (server)`, `Offset changed to: ${offset} from: ${this.serverTimeOffset}`)()\n                this.set('serverTimeOffset', offset)\n            }\n        }\n    }\n\n    /** Set the default originator. Set to '' to ignore. Used with uib-sender.\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    setOriginator(originator = '') {\n        this.set('originator', originator)\n    } // ---- End of setOriginator ---- //\n\n    /** HTTP Ping/Keep-alive - makes a call back to uibuilder's ExpressJS server and receives a 204 response\n     * Can be used to keep sessions alive.\n     * @example\n     *   uibuilder.setPing(2000) // repeat every 2 sec. Re-issue with ping(0) to turn off repeat.\n     *   uibuilder.onChange('ping', function(data) {\n     *      console.log('pinger', data)\n     *   })\n     * @param {number} ms Repeat interval in ms\n     */\n    setPing(ms = 0) {\n        const oReq = new XMLHttpRequest()\n        oReq.addEventListener('load', () => {\n            const headers = (oReq.getAllResponseHeaders()).split('\\r\\n')\n            const elapsedTime = Number(new Date()) - Number((oReq.responseURL.split('='))[1])\n            this.set('ping', {\n                success: !!((oReq.status === 201) || (oReq.status === 204)), // true if one of the listed codes else false\n                status: oReq.status,\n                headers: headers,\n                url: oReq.responseURL,\n                elapsedTime: elapsedTime,\n            })\n        })\n\n        if (this.#pingInterval) {\n            clearInterval(this.#pingInterval)\n            this.#pingInterval = undefined\n        }\n\n        oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n        oReq.send()\n\n        if (ms > 0) {\n            this.#pingInterval = setInterval(() => {\n                oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n                oReq.send()\n            }, ms)\n        }\n    } // ---- End of ping ---- //\n\n    log() {\n        log(...arguments)()\n    }\n\n    /** Convert JSON to Syntax Highlighted HTML\n     * @param {object} json A JSON/JavaScript Object\n     * @returns {html} Object reformatted as highlighted HTML\n     */\n    syntaxHighlight(json) {\n        return syntaxHighlight(json)\n    } // --- End of syntaxHighlight --- //\n\n    /** Copies a uibuilder variable to the browser clipboard\n     * @param {string} varToCopy The name of the uibuilder variable to copy to the clipboard\n     */\n    copyToClipboard(varToCopy) {\n        let data = ''\n        try {\n            console.log(this.get(varToCopy), JSON.stringify(this.get(varToCopy)))\n            data = JSON.stringify(this.get(varToCopy))\n        } catch (e) {\n            log('error', 'copyToClipboard', `Could not copy \"${varToCopy}\" to clipboard.`, e.message)()\n        }\n        navigator.clipboard.writeText(data)\n    } // --- End of copyToClipboard --- //\n\n    /** DEPRECATED FOR NOW - wasn't working properly.\n     * Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.\n     * Requires IntersectionObserver (available to all mainstream browsers from early 2019)\n     * Automatically sends a msg back to Node-RED.\n     * Requires the element to already exist.\n     * @returns {false}\n     */\n    elementIsVisible() {\n        const info = 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'\n        log('error', 'uib:elementIsVisible', info)()\n        this.send({payload: 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'})\n        return false\n    } // --- End of elementIsVisible --- //\n\n    /** Does the chosen CSS Selector currently exist?\n     * Automatically sends a msg back to Node-RED unless turned off.\n     * @param {string} cssSelector Required. CSS Selector to examine for visibility\n     * @param {boolean} [msg] Optional, default=true. If true also sends a message back to Node-RED\n     * @returns {boolean} True if the element exists\n     */\n    elementExists(cssSelector, msg = true) {\n        const el = document.querySelector(cssSelector)\n\n        let exists = false\n        if (el !== null) exists = true\n\n        if (msg === true) {\n            this.send({\n                payload: exists,\n                info: `Element \"${cssSelector}\" ${exists ? 'exists' : 'does not exist'}`\n            })\n        }\n\n        return exists\n    } // --- End of elementExists --- //\n\n    /** Only keep the URL Hash & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return '#' + url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Set up an event listener to watch for hash changes\n     * and set the watchable urlHash variable\n     */\n    _watchHashChanges() {\n        this.set('urlHash', location.hash)\n        window.addEventListener('hashchange', (event) => {\n            this.set('urlHash', location.hash)\n            if (this.#sendUrlHash === true) {\n                this.send({ topic: 'hashChange', payload: location.hash, newHash: this.keepHashFromUrl(event.newURL), oldHash: this.keepHashFromUrl(event.oldURL) })\n            }\n        })\n    }\n\n    /** Returns true/false or a default value for truthy/falsy and other values\n     * @param {string|number|boolean|*} val The value to test\n     * @param {any} deflt Default value to use if the value is not truthy/falsy\n     * @returns {boolean|any} The truth! Or the default\n     */\n    truthy(val, deflt) {\n        let ret\n        if (['on', 'On', 'ON', 'true', 'True', 'TRUE', '1', true, 1].includes(val)) ret = true\n        else if (['off', 'Off', 'OFF', 'false', 'False', 'FALSE', '0', false, 0].includes(val)) ret = false\n        else ret = deflt\n        return ret\n    }\n\n    /** Turn on/off/toggle sending URL hash changes back to Node-RED\n     * @param {string|number|boolean|undefined} [toggle] Optional on/off/etc\n     * @returns {boolean} True if we will send a msg to Node-RED on a hash change\n     */\n    watchUrlHash(toggle) {\n        this.#sendUrlHash = this.truthy(toggle, this.#sendUrlHash !== true)\n        return this.#sendUrlHash\n    }\n\n    /** Navigate to a new page or a new route (hash)\n     * @param {string} url URL to navigate to. Can be absolute or relative (to current page) or just a hash for a route change\n     * @returns {Location} The new window.location string\n     */\n    navigate(url) {\n        if (url) window.location.href = url\n        return window.location\n    }\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- UI handlers --------- //\n\n    //#region -- Direct to _ui --\n    // ! NOTE: Direct assignments change the target `this` to here. Use with caution\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {HTMLElement|null} Selected HTML element or null\n     */\n    $ = _ui.$\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {string} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {HTMLElement[]} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$ = _ui.$$\n\n    /** Reference to the full ui library */\n    $ui = _ui\n\n    /** Add 1 or several class names to an element\n     * @param {string|string[]} classNames Single or array of classnames\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    addClass = _ui.addClass\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        return _ui.convertMarkdown\n    }\n\n    /** ASYNC: Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     */\n    async include(url, uiOptions) {\n        await _ui.include(url, uiOptions)\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        _ui.loadScriptSrc(url)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        _ui.loadStyleSrc(url)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        _ui.loadScriptTxt(textFn)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        _ui.loadStyleTxt(textFn)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        _ui.loadui(url)\n    }\n\n    /** Remove All, 1 or more class names from an element\n     * @param {undefined|null|\"\"|string|string[]} classNames Single or array of classnames. If undefined, \"\" or null, remove all classes\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    removeClass = _ui.removeClass\n\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        _ui.replaceSlot(el, component)\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        _ui.replaceSlotMarkdown(el, component)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        return _ui.sanitiseHTML(html)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) {\n        _ui.showDialog(type, ui, msg)\n    }\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        _ui.ui(json)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        return _ui.uiGet(cssSelector, propName)\n    }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} component Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, component) {\n        _ui.uiEnhanceElement(el, component)\n    }\n\n    //#endregion -- direct to _ui --\n\n    /** * Show/hide a display card on the end of the visible HTML that will dynamically display the last incoming msg from Node-RED\n     * The card has the id `uib_last_msg`. Updates are done from a listener set up in the start function.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showMsg(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowMsg\n        this.#isShowMsg = showHide\n        let slot = 'Waiting for a message from Node-RED'\n\n        if (this.msg && Object.keys(this.msg).length > 0) {\n            slot = this.syntaxHighlight(this.msg)\n        }\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_last_msg_wrap',\n                ],\n            })\n        } else {\n            _ui._uiReplace({\n                components: [\n                    {\n                        type: 'div',\n                        id: 'uib_last_msg_wrap',\n                        parent: parent,\n                        attributes: {\n                            title: 'Last message from Node-RED',\n                        },\n                        components: [\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.copyToClipboard(\"msg\")',\n                                    class: 'compact',\n                                    style: 'right:3em;',\n                                },\n                                slot: '\uD83D\uDCCB',\n                            },\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.showMsg()',\n                                    class: 'compact',\n                                    style: 'right:.5em;',\n                                },\n                                slot: '\u26D4',\n                            },\n                            {\n                                type: 'pre',\n                                id: 'uib_last_msg',\n                                // parent: 'uib_last_msg_wrap',\n                                attributes: {\n                                    class: 'syntax-highlight',\n                                },\n                                slot: slot,\n                            },\n                        ],\n                    },\n                ],\n            })\n        }\n\n        return showHide\n    }\n\n    /** Show a browser notification if possible.\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * @example uibuilder.notify( 'My simple message to the user' )\n     * @example uibuilder.notify( {topic: 'My Title', payload: 'My simple message to the user'} )\n     * @example uibuilder.notify( {title: 'My Title', body: 'My simple message to the user'} )\n     * @example // If config.return = true, a promise is returned.\n     * // The resolved promise is only returned if the notification is clicked by the user.\n     * // Can be used to send the response back to Node-RED\n     * uibuilder.notify(notifyConfig).then( res => uibuilder.eventSend(res) )\n     * @ref https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config data or simple message string\n     * @returns {Promise<Event>|null} A promise that resolves to the click event or null\n     */\n    notify(config) {\n        if (config.return) return _ui.notification(config)\n\n        _ui.notification(config)\n            .then( res => { // eslint-disable-line promise/always-return\n                log('info', 'Uib:notification', 'Notification completed event', res)()\n                // if (config.return) return res\n            })\n            .catch( err => {\n                log('error', 'Uib:notification', 'Notification error event', err)()\n            })\n        return null\n    }\n\n    /** Scroll the page\n     * https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollIntoView\n     * @param {string} [cssSelector] Optional. If not set, scrolls to top of page.\n     * @param {{block:(string|undefined),inline:(string|undefined),behavior:(string|undefined)}} [opts] Optional. DOM scrollIntoView options\n     * @returns {boolean} True if element was found, false otherwise\n     */\n    scrollTo(cssSelector, opts) {\n        // @ts-ignore\n        if (!opts) opts = {}\n        if (!cssSelector || cssSelector === 'top'  || cssSelector === 'start') cssSelector = 'body'\n        else if (cssSelector === 'bottom' || cssSelector === 'end') {\n            cssSelector = 'body'\n            opts.block = 'end'\n        }\n        const el = this.$(cssSelector)\n        if (el) {\n            el.scrollIntoView(opts)\n            return true\n        }\n        return false\n    }\n\n    /** Show/hide a display card on the end of the visible HTML that will dynamically display the current status of the uibuilder client\n     * The card has the id `uib_status`.\n     * The display is updated by an event listener created in the class constructor.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showStatus(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowStatus\n        this.#isShowStatus = showHide\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_status',\n                ],\n            })\n            return showHide\n        }\n\n        const root = {\n            components: [\n                {\n                    type: 'div',\n                    id: 'uib_status',\n                    parent: parent,\n                    attributes: {\n                        title: 'Current status of the uibuilder client',\n                        class: 'text-smaller',\n                    },\n                    components: [\n                        {\n                            'type': 'table',\n                            'components': [\n                                {\n                                    'type': 'tbody',\n                                    'components': []\n                                }\n                            ]\n                        }\n                    ]\n                }\n            ]\n        }\n        const details = root.components[0].components[0].components[0].components\n\n        Object.values(this.#showStatus).forEach( entry => {\n            details.push({\n                'type': 'tr',\n                'attributes': {\n                    title: entry.description,\n                },\n                'components': [\n                    {\n                        'type': 'th',\n                        'slot': entry.label,\n                    },\n                    {\n                        'type': 'td',\n                        'attributes': {\n                            'data-varType': entry.var,\n                        },\n                        'slot': entry.var === 'version' ? Uib._meta.version : JSON.stringify(this[entry.var]),\n                    }\n                ],\n            })\n        })\n\n        _ui._uiReplace(root)\n\n        return showHide\n    }\n\n    /** Use the Mutation Observer browser API to watch for changes to a single element on the page.\n     * OMG! It is sooo hard to turn the data into something that successfully serialises so it can be sent back to Node-RED!\n     * NB: Each cssSelector creates a unique watcher. Sending the same selector overwrites the previous one.\n     * @param {string} cssSelector A CSS Selector that selects the element to watch for changes\n     * @param {boolean|\"toggle\"} [startStop] true=start watching the DOM, false=stop. Default='toggle'\n     * @param {boolean} [send] true=Send changes to Node-RED, false=Don't send. Default=true\n     * @param {boolean} [showLog] true=Output changes to log, false=stop. Default=true. Log level is 2 (Info)\n     * @returns {boolean} True if the watch is on, false otherwise\n     */\n    uiWatch(cssSelector, startStop = 'toggle', send = true, showLog = true) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.querySelector(cssSelector)\n        if (!targetNode) {\n            log('warn', 'uibuilder.module.js:uiWatch', `CSS Selector '${cssSelector}' not found.`)()\n            return false\n        }\n\n        if (startStop === 'toggle' || startStop === undefined || startStop === null) {\n            if (this.#uiObservers[cssSelector]) startStop = false\n            else startStop = true\n        }\n\n        // Need a ref to the Uib this\n        const that = this\n\n        if (startStop === true) {\n            // Create an observer instance\n            this.#uiObservers[cssSelector] = new MutationObserver( function( mutationList /* , observer */ ) {\n                const out = []\n\n                mutationList.forEach( mu => {\n                    // console.log({ mu })\n                    const oMu = {\n                        type: mu.type,\n                        oldValue: mu.oldValue !== null ? mu.oldValue : undefined,\n                    }\n\n                    if (mu.addedNodes.length > 0) {\n                        oMu.addedNodes = []\n                        mu.addedNodes.forEach( (an, i) => {\n                            oMu.addedNodes.push(_ui.nodeGet(mu.addedNodes[i]))\n                        })\n                    }\n\n                    if (mu.removedNodes.length > 0) {\n                        oMu.removedNodes = []\n                        mu.removedNodes.forEach( (an, i) => {\n                            oMu.removedNodes.push(_ui.nodeGet(mu.removedNodes[i]))\n                        })\n                    }\n\n                    if ( mu.type === 'attributes' ) {\n                        oMu.attributeName = mu.attributeName\n                        // @ts-ignore\n                        oMu.newValue = mu.target.attributes[mu.attributeName].value\n                    }\n\n                    out.push(oMu)\n                })\n\n                // Custom event\n                that._dispatchCustomEvent('uibuilder:domChange', out)\n                // Send a msg back to node-red\n                if (send === true) {\n                    that.send({\n                        _ui: {\n                            cssSelector: cssSelector,\n                            uiChanges: out\n                        },\n                        topic: that.topic || `DOM Changes for '${cssSelector}'`,\n                    })\n                }\n                // Log to info\n                if (showLog === true) {\n                    log('info', 'uibuilder.module.js:uiWatch', `DOM Changes for '${cssSelector}'`, { uiChanges: out }, { mutationList })()\n                }\n            } )\n\n            // Start observing the target node for configured mutations\n            this.#uiObservers[cssSelector].observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:uiWatch', `Started Watching DOM changes for '${cssSelector}'`)()\n        } else {\n            this.#uiObservers[cssSelector].disconnect()\n            delete this.#uiObservers[cssSelector]\n            log('trace', 'uibuilder.module.js:uiWatch', `Stopped Watching DOM changes for '${cssSelector}'`)()\n        }\n\n        return startStop\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- HTML cache and DOM watch --------- //\n\n    /** Clear the saved DOM from localStorage */\n    clearHtmlCache() {\n        this.removeStore('htmlCache')\n        log('trace', 'uibuilder.module.js:clearHtmlCache', 'HTML cache cleared')()\n    }\n\n    /** Restore the complete DOM (the whole web page) from browser localStorage if available */\n    restoreHtmlFromCache() {\n        // Is the html cached? If so, restore it\n        const htmlCache = this.getStore('htmlCache')\n        if (htmlCache) {\n            const targetNode = document.getElementsByTagName('html')[0]\n            // Restore the entire HTML\n            targetNode.innerHTML = htmlCache\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'Restored HTML from cache')()\n        } else {\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'No cache to restore')()\n        }\n    }\n\n    /** Save the current DOM state to browser localStorage.\n     * localStorage is persistent and so can be recovered even after a browser restart.\n     */\n    saveHtmlCache() {\n        // Save the updated entire HTML in localStorage\n        this.setStore('htmlCache', document.documentElement.innerHTML)\n    }\n\n    /** Use the Mutation Observer browser API to watch for and save changes to the HTML\n     * Once the observer is created, it will be reused.\n     * Sending true or undefined will turn on the observer, false turns it off.\n     * saveHtmlCache is called whenever anything changes in the dom. This allows\n     * users to call restoreHtmlFromCache() on page load if desired to completely reload\n     * to the last saved state.\n     * @param {boolean} startStop true=start watching the DOM, false=stop\n     */\n    watchDom(startStop) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.documentElement\n\n        // Need a ref to the Uib this\n        const that = this\n\n        // Create an observer instance\n        if (!this._htmlObserver) {\n            this._htmlObserver = new MutationObserver( function(/* mutationList, observer */) {\n                // We don't need to know the details - so kill off any outstanding mutation records\n                this.takeRecords()\n                // Save the updated entire HTML in localStorage\n                that.saveHtmlCache()\n            } )\n        }\n\n        if (startStop === true || startStop === undefined) {\n            // Start observing the target node for configured mutations\n            this._htmlObserver.observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:watchDom', 'Started Watching and saving DOM changes')()\n        } else {\n            this._htmlObserver.disconnect()\n            log('trace', 'uibuilder.module.js:watchDom', 'Stopped Watching and saving DOM changes')()\n        }\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- Message Handling (To/From Node-RED) -------- //\n\n    /** Handles original control msgs (not to be confused with \"new\" msg._uib controls)\n     * @param {*} receivedCtrlMsg The msg received on the socket.io control channel\n     */\n    _ctrlMsgFromServer(receivedCtrlMsg) {\n\n        // Make sure that msg is an object & not null\n        if (receivedCtrlMsg === null) {\n            receivedCtrlMsg = {}\n        } else if (typeof receivedCtrlMsg !== 'object') {\n            const msg = {}\n            msg['uibuilderCtrl:' + this._ioChannels.control] = receivedCtrlMsg\n            receivedCtrlMsg = msg\n        }\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedCtrlMsg)\n\n        this.set('ctrlMsg', receivedCtrlMsg)\n        this.set('msgsCtrlReceived', ++this.msgsCtrlReceived)\n\n        log('trace', 'Uib:ioSetup:_ctrlMsgFromServer', `Channel '${this._ioChannels.control}'. Received control msg #${this.msgsCtrlReceived}`, receivedCtrlMsg)()\n\n        /** Process control msg types */\n        switch (receivedCtrlMsg.uibuilderCtrl) {\n            // Node-RED is shutting down\n            case 'shutdown': {\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, '\u274C Received \"shutdown\" from server')()\n                this.set('serverShutdown', undefined)\n                break\n            }\n\n            /** We are connected to the server - 1st msg from server */\n            case 'client connect': {\n                log('trace', `Uib:ioSetup:${this._ioChannels.control}`, 'Received \"client connect\" from server')()\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, `\u2705 Server connected. Version: ${receivedCtrlMsg.version}\\nServer time: ${receivedCtrlMsg.serverTimestamp}, Sever time offset: ${this.serverTimeOffset} hours`)()\n\n                if ( !Uib._meta.version.startsWith(receivedCtrlMsg.version.split('-')[0]) ) {\n                    log('warn', `Uib:ioSetup:${this._ioChannels.control}`, `Server version (${receivedCtrlMsg.version}) not the same as the client version (${Uib._meta.version})`)()\n                }\n\n                if (this.autoSendReady === true) { // eslint-disable-line no-lonely-if\n                    log('trace', `Uib:ioSetup:${this._ioChannels.control}/client connect`, 'Auto-sending ready-for-content/replay msg to server')\n                    // @since 0.4.8c Add cacheControl property for use with node-red-contrib-infocache\n                    // @since 6.1.0 Don't bother, we use the \"client connect\" msg\n                    // this._send({\n                    //     'uibuilderCtrl': 'ready for content',\n                    //     'cacheControl': 'REPLAY',\n                    // }, this._ioChannels.control)\n                }\n\n                break\n            }\n\n            default: {\n                log('trace', `uibuilderfe:ioSetup:${this._ioChannels.control}`, `Received ${receivedCtrlMsg.uibuilderCtrl} from server`)\n                // Anything else to do for other control msgs?\n            }\n        } // ---- End of process control msg types ---- //\n    } // -- End of websocket receive CONTROL msg from Node-RED -- //\n\n    /** Do we want to process something? Check pageName, clientId, tabId. Defaults to yes.\n     * @param {*} obj Either a msg._ui or msg._uib object to check\n     * @returns {boolean} True if we should process the inbound _ui/_uib msg, false if not.\n     */\n    _forThis(obj) {\n        let r = true\n\n        // Is this msg for this pageName?\n        if (obj.pageName && obj.pageName !== this.pageName) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this page')()\n            r = false\n        }\n\n        // Is this msg for this clientId?\n        if (obj.clientId && obj.clientId !== this.clientId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this clientId')()\n            r = false\n        }\n\n        // Is this msg for this tabId?\n        if (obj.tabId && obj.tabId !== this.tabId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this tabId')()\n            r = false\n        }\n\n        return r\n    }\n\n    // Handle received messages - Process some msgs internally, emit specific events on document that make it easy for coders to use\n    _msgRcvdEvents(msg) {\n        // Message received\n        this._dispatchCustomEvent('uibuilder:stdMsgReceived', msg)\n\n        // Topic\n        if ( msg.topic ) this._dispatchCustomEvent(`uibuilder:msg:topic:${msg.topic}`, msg)\n\n        // Handle msg._uib special requests\n        if (msg._uib) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._uib)) return\n\n            /** Process a client reload request from Node-RED - as the page is reloaded, everything else is ignored\n             * Note that msg._ui.reload is also actioned via the _ui processing below */\n            if (msg._uib.reload === true) {\n                log('trace', 'Uib:_msgRcvdEvents:_uib:reload', 'reloading')()\n                location.reload()\n                return\n            }\n\n            // Process msg._uib.command messages - allows Node-RED to run uibuilder FE functions\n            if (msg._uib.command) {\n                this._uibCommand(msg)\n                return\n            }\n\n            // Better to request via msg._ui - these are for backwards compatibility\n            if ( msg._uib.componentRef === 'globalNotification' ) {\n                _ui.showDialog('notify', msg._uib.options, msg)\n            }\n            if ( msg._uib.componentRef === 'globalAlert' ) {\n                _ui.showDialog('alert', msg._uib.options, msg)\n            }\n        }\n\n        // Handle msg._ui requests\n        if ( msg._ui ) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._ui)) return\n\n            log('trace', 'Uib:_msgRcvdEvents:_ui', 'Calling _uiManager')()\n            this._dispatchCustomEvent('uibuilder:msg:_ui', msg)\n            _ui._uiManager(msg)\n        }\n    } // --- end of _msgRcvdEvents ---\n\n    /** Internal send fn. Send a standard or control msg back to Node-RED via Socket.IO\n     * NR will generally expect the msg to contain a payload topic\n     * @param {object} msgToSend The msg object to send.\n     * @param {string} [channel=uiBuilderClient] The Socket.IO channel to use, must be in self.ioChannels or it will be ignored\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    _send(msgToSend, channel, originator = '') {\n        if (channel === null || channel === undefined) channel = this._ioChannels.client\n\n        // Make sure msgToSend is an object\n        if (channel === this._ioChannels.client) {\n            msgToSend = makeMeAnObject(msgToSend, 'payload')\n        } else if (channel === this._ioChannels.control) {\n            msgToSend = makeMeAnObject(msgToSend, 'uibuilderCtrl')\n            if (!Object.prototype.hasOwnProperty.call(msgToSend, 'uibuilderCtrl')) {\n                msgToSend.uibuilderCtrl = 'manual send'\n            }\n            // help remember where this came from as ctrl msgs can come from server or client\n            msgToSend.from = 'client'\n        }\n\n        /** since 2020-01-02 Added _socketId which should be the same as the _socketId on the server */\n        msgToSend._socketId = this._socket.id\n\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n\n        // Add the originator metadata if required\n        if (originator === '' && this.originator !== '') originator = this.originator\n        if (originator !== '') Object.assign(msgToSend, { '_uib': { 'originator': originator } })\n\n        // If the msg does not have a topic - see if we want to add one\n        if ( !Object.prototype.hasOwnProperty.call(msgToSend, 'topic') ) {\n            // From the default (`uibuilder.set('topic', 'some topic')`)\n            if (this.topic !== undefined && this.topic !== '') msgToSend.topic = this.topic\n            else {\n                // Did the last inbound msg have a topic?\n                if ( Object.prototype.hasOwnProperty.call(this, 'msg') && Object.prototype.hasOwnProperty.call(this.msg, 'topic') ) {\n                    msgToSend.topic = this.msg.topic\n                }\n            }\n        }\n\n        // If a standard send & _ui property exists, make sure to add _ui.from = 'client'\n        if (msgToSend._ui) msgToSend._ui.from = 'client'\n\n        // Track how many messages have been sent & last msg sent\n        let numMsgs\n        if (channel === this._ioChannels.client) {\n            this.set('sentMsg', msgToSend)\n            numMsgs = this.set('msgsSent', ++this.msgsSent)\n        } else if (channel === this._ioChannels.control) {\n            this.set('sentCtrlMsg', msgToSend)\n            numMsgs = this.set('msgsSentCtrl', ++this.msgsSentCtrl)\n        }\n        log('trace', 'Uib:_send', ` Channel '${channel}'. Sending msg #${numMsgs}`, msgToSend)()\n\n        this._socket.emit(channel, msgToSend)\n    } // --- End of Send Msg Fn --- //\n\n    /** Callback handler for messages from Node-RED\n     * NOTE: `this` is the class here rather the `socket` as would be normal since we bind the correct `this` in the call.\n     *       Use this._socket if needing reference to the socket.\n     * @callback ioSetupFromServer Called from ioSetup/this._socket.on(this.#ioChannels.server, this.stdMsgFromServer.bind(this))\n     * @param {object} receivedMsg The msg object from Node-RED\n     * @this Uib\n     */\n    _stdMsgFromServer(receivedMsg) {\n\n        // Make sure that msg is an object & not null\n        receivedMsg = makeMeAnObject(receivedMsg, 'payload')\n\n        // Don't process if the inbound msg is not for us\n        if (receivedMsg._uib && !this._forThis(receivedMsg._uib)) return\n        if (receivedMsg._ui && !this._forThis(receivedMsg._ui)) return\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedMsg)\n\n        // Track how many messages have been received\n        this.set('msgsReceived', ++this.msgsReceived)\n\n        // Emit specific document events on msg receipt that make it easy for coders to use\n        this._msgRcvdEvents(receivedMsg)\n\n        if ( !('_ui' in receivedMsg && !('payload' in receivedMsg)) ) {\n            // Save the msg for further processing\n            this.set('msg', receivedMsg)\n        }\n\n        log('info', 'Uib:ioSetup:stdMsgFromServer', `Channel '${this._ioChannels.server}'. Received msg #${this.msgsReceived}.`, receivedMsg)()\n\n        // ! NOTE: Don't try to handle specialist messages here. See _msgRcvdEvents.\n    } // -- End of websocket receive DATA msg from Node-RED -- //\n\n    /** Process msg._uib.command - Remember to update #extCommands with new allowed commands\n     * @param {object} msg Msg from Node-RED containing a msg._uib object\n     */\n    _uibCommand(msg) {\n        if (!msg._uib || !msg._uib.command) {\n            log('error', 'uibuilder:_uibCommand', 'Invalid command message received', { msg })()\n            msg.payload = msg.error = 'Invalid command message received'\n            this.send(msg)\n            return\n        }\n        const cmd = msg._uib.command\n        // Disallowed command request outputs error and ignores the msg (NB: Case must match)\n        if (!this.#extCommands.includes(cmd.trim())) {\n            log('error', 'Uib:_uibCommand', `Command '${cmd} is not allowed to be called externally`)()\n            return\n        }\n        const prop = msg._uib.prop\n        const value = msg._uib.value\n        const quiet = msg._uib.quiet ?? false\n        let response, info\n\n        // Don't forget to update `#extCommands`, `docs/client-docs/control-from-node-red.md` & `functions.md`\n        switch (cmd) {\n            case 'elementIsVisible': {\n                response = this.elementIsVisible(prop)\n                // info = `Element \"${prop}\" ${response ? 'is visible' : 'is not visible'}`\n                break\n            }\n\n            case 'elementExists': {\n                response = this.elementExists(prop, false)\n                info = `Element \"${prop}\" ${response ? 'exists' : 'does not exist'}`\n                break\n            }\n\n            case 'get': {\n                response = this.get(prop)\n                break\n            }\n\n            case 'getManagedVarList': {\n                if (prop === 'full') response = this.getManagedVarList()\n                else response = Object.values(this.getManagedVarList())\n                break\n            }\n\n            case 'getWatchedVars': {\n                if (prop === 'full') response = this.getWatchedVars()\n                else response = Object.values(this.getWatchedVars())\n                break\n            }\n\n            case 'htmlSend': {\n                response = this.htmlSend('', false)\n                break\n            }\n\n            case 'include': {\n                // include is async\n                response = _ui.include(prop, value)\n                break\n            }\n\n            case 'navigate': {\n                let newUrl\n                if (prop) newUrl = prop\n                else if (value) newUrl = value\n                response = this.navigate(newUrl)\n                break\n            }\n\n            case 'scrollTo': {\n                response = this.scrollTo(prop, value)\n                break\n            }\n\n            case 'set': {\n                let store = false\n                let autoload = false\n                if (msg._uib.options && msg._uib.options.store) {\n                    if (msg._uib.options.store === true) store = true\n                    if (msg._uib.options.autoload === true) autoload = true\n                }\n                response = this.set(prop, value, store, autoload)\n                break\n            }\n\n            case 'showMsg': {\n                response = this.showMsg(value, prop)\n                break\n            }\n\n            case 'showStatus': {\n                response = this.showStatus(value, prop)\n                break\n            }\n\n            case 'uiGet': {\n                response = _ui.uiGet(prop, value)\n                break\n            }\n\n            case 'uiWatch': {\n                response = this.uiWatch(prop)\n                break\n            }\n\n            case 'watchUrlHash': {\n                response = this.watchUrlHash(prop)\n                break\n            }\n\n            default: {\n                log('warning', 'Uib:_uibCommand', `Command '${cmd}' not yet implemented`)()\n                break\n            }\n        }\n\n        if (quiet !== true) {\n            if (response === undefined) {\n                response = `'${prop}' is undefined`\n            }\n            if (Object(response).constructor === Promise) {\n                // response = `'${cmd} ${prop}' submitted. Cmd is async, no response available`\n                response\n                    .then( (/** @type {any} */ data) => {\n                        msg.payload = msg._uib.response = data\n                        msg.info = msg._uib.info = info\n                        if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                        this.send(msg)\n                        return true\n                    })\n                    .catch( err => {\n                        log(0, 'Uib:_uibCommand', 'Error: ', err)()\n                    })\n            } else {\n                msg.payload = msg._uib.response = response\n                msg.info = msg._uib.info = info\n                if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                this.send(msg)\n            }\n        }\n    } // --- end of _uibCommand ---\n\n    /** Send log text to uibuilder's beacon endpoint (works even if socket.io not connected)\n     * @param {string} txtToSend Text string to send\n     * @param {string|undefined} logLevel Log level to use. If not supplied, will default to debug\n     */\n    beaconLog(txtToSend, logLevel) {\n        if (!logLevel) logLevel = 'debug'\n        navigator.sendBeacon('./_clientLog', `${logLevel}::${txtToSend}`)\n    }\n\n    /** Easily send the entire DOM/HTML msg back to Node-RED\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     * @param {boolean} [send] If true (default) directly send response to Node-RED. Is false when calling from Node-RED as a command.\n     * @returns {string} The HTML as a string\n     */\n    htmlSend(originator = '', send = true) {\n        const out = `<!doctype html>\\n${document.documentElement.outerHTML}`\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            payload: out,\n            length: out.length,\n            topic: this.topic,\n        }\n\n        log('trace', 'Uib:htmlSend', 'Sending full HTML to Node-RED', msg)()\n\n        if (send === true) this._send(msg, this._ioChannels.client, originator)\n        return out\n    }\n\n    /** Send log info back to Node-RED over uibuilder's websocket control output (Port #2)\n     * @param {...*} arguments All arguments passed to the function are added to the msg.payload\n     */\n    logToServer() {\n        this.sendCtrl({\n            uibuilderCtrl: 'client log message',\n            payload: arguments,\n            // \"version\":\"6.1.0-iife.min\",\n            _socketId: this._socket.id,\n            // \"ip\":\"::1\",\n            clientId: this.clientId,\n            tabId: this.tabId,\n            // \"url\":\"esp-test\",\n            pageName: this.pageName,\n            connections: this.connectedNum,\n            lastNavType: this.lastNavType,\n        })\n    }\n\n    /** Easily send a msg back to Node-RED on a DOM event\n     * @example In plain HTML/JavaScript\n     *    `<button id=\"button1\" name=\"button 1\" data-fred=\"jim\"></button>`\n     *    $('#button1').onclick = (evt) => {\n     *      uibuilder.eventSend(evt)\n     *    }\n     * @example\n     * In VueJS: `<b-button id=\"myButton1\" @click=\"doEvent\" data-something=\"hello\"></b-button>`\n     * In VueJS methods: `doEvent: uibuilder.eventSend,`\n     *\n     * All `data-` attributes will be passed back to Node-RED,\n     *    use them instead of arguments in the click function.\n     *    All target._ui custom properties are also passed back to Node-RED.\n     *\n     * @param {MouseEvent|any} domevent DOM Event object\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    eventSend(domevent, originator = '') { // eslint-disable-line sonarjs/cognitive-complexity\n        // @ts-ignore Handle case where vue messes up `this`\n        if ( this.$attrs ) {\n            log('error', 'Uib:eventSend', '`this` has been usurped by VueJS. Make sure that you wrap the call in a function: `doEvent: function (event) { uibuilder.eventSend(event) },`' )()\n            return\n        }\n        if (!domevent && !event) {\n            log('warn', 'Uib:eventSend', 'Neither the domevent nor the hidden event properties are set. You probably called this function directly rather than applying to an on click event.' )()\n            return\n        }\n        // Handle no argument, e.g. <button onClick=\"uibuilder.eventSend()\"> - event is a hidden variable when fn used in addEventListener\n        if (!domevent || !domevent.constructor) domevent = event\n\n        // The argument must be a DOM event\n        if ((!domevent.constructor.name.endsWith('Event')) || (!domevent.currentTarget)) {\n            log('warn', 'Uib:eventSend', `ARGUMENT NOT A DOM EVENT - use data attributes not function arguments to pass data. Arg Type: ${domevent.constructor.name}`, domevent)()\n            return\n        }\n\n        // Prevent default event action\n        domevent.preventDefault()\n\n        // The target element\n        const target = domevent.currentTarget\n\n        // Get target properties - only shows custom props not element default ones\n        const props = {}\n        Object.keys(target).forEach( key => {\n            if (key.startsWith('_')) return // Exclude private\n            props[key] = target[key]\n        })\n\n        // Attempt to get target attributs - can fail for certain target types\n        const ignoreAttribs = ['class', 'id', 'name']\n        let attribs\n        try {\n            attribs = Object.assign({},\n                ...Array.from(target.attributes,\n                    ( { name, value } ) => {\n                        if ( !ignoreAttribs.includes(name) ) {\n                            return ({ [name]: value })\n                        }\n                        return undefined\n                    }\n                )\n            )\n        } catch (e) {}\n\n        // If target embedded in a form, include the form data\n        let form\n        const frmVals = []\n        if ( target.form ) {\n            form = {}\n            form.valid = target.form.checkValidity()\n            Object.values(target.form).forEach( (frmEl, i) => {\n                const id = frmEl.id !== '' ? frmEl.id : (frmEl.name !== '' ? frmEl.name : `${i}-${frmEl.type}`)\n\n                // We must have both an element id (we may have forced one above) AND\n                // the element type MUST be not undefined - to allow for the extra properties added by frameworks such as Svelte\n                if (id !== '' && frmEl.type) {\n                    // Stupid HTML doesn't use value attrib for checkboxes. So override if value is set to default\n                    if ('checked' in frmEl && frmEl.value === 'on') frmEl.value = frmEl.checked.toString()\n\n                    frmVals.push( { key: id, val: frmEl.value } ) // simplified for addition to msg.payload\n\n                    form[id] = {\n                        'id': frmEl.id,\n                        'name': frmEl.name,\n                        'value': frmEl.value,\n                        'valid': frmEl.checkValidity(),\n                        'type': frmEl.type,\n                    }\n\n                    if (form[id].valid === false) {\n                        const v = frmEl.validity\n                        form[id].validity = {\n                            badInput: v.badInput === true ? v.badInput : undefined,\n                            customError: v.customError === true ? v.customError : undefined,\n                            patternMismatch: v.patternMismatch === true ? v.patternMismatch : undefined,\n                            rangeOverflow: v.rangeOverflow === true ? v.rangeOverflow : undefined,\n                            rangeUnderflow: v.rangeUnderflow === true ? v.rangeUnderflow : undefined,\n                            stepMismatch: v.stepMismatch === true ? v.stepMismatch : undefined,\n                            tooLong: v.tooLong === true ? v.tooLong : undefined,\n                            tooShort: v.tooShort === true ? v.tooShort : undefined,\n                            typeMismatch: v.typeMismatch === true ? v.typeMismatch : undefined,\n                            valueMissing: v.valueMissing === true ? v.valueMissing : undefined,\n                        }\n                    }\n\n                    if (frmEl.dataset) form[id].data = frmEl.dataset\n                }\n            })\n        }\n\n        // Check for CSS Classes\n        let classes\n        try {\n            classes = Array.from(target.classList)\n        } catch (e) {}\n\n        // Each `data-xxxx` attribute is added as a property\n        let payload = { ...target.dataset }\n\n        // Handle Notification events\n        let nprops\n        if ( Object.prototype.toString.call(target) === '[object Notification]') {\n            // Fixed payload for convenience\n            payload = `notification-${target.userAction}`\n            // Capture the notification properties\n            nprops = {\n                // userAction: target.userAction, // uib custom prop: click, close or error\n                actions: target.actions,\n                badge: target.badge,\n                body: target.body,\n                data: target.data,\n                dir: target.dir,\n                icon: target.icon,\n                image: target.image,\n                lang: target.lang,\n                renotify: target.renotify,\n                requireInteraction: target.requireInteraction,\n                silent: target.silent,\n                tag: target.tag,\n                timestamp: target.timestamp,\n                title: target.title,\n                vibrate: target.vibrate,\n            }\n        }\n        // console.log(Object.prototype.toString.call(target))\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            // - this may be an empty Object if no data attributes defined\n            payload: payload,\n\n            _ui: {\n                type: 'eventSend',\n                id: target.id !== '' ? target.id : undefined,\n                name: target.name !== '' ? target.name : undefined,\n                slotText: target.textContent ? target.textContent.substring(0, 255) : undefined,\n\n                form: form,\n                props: props,\n                attribs: attribs,\n                classes: classes,\n\n                notification: nprops,\n\n                event: domevent.type,\n                altKey: domevent.altKey,\n                ctrlKey: domevent.ctrlKey,\n                shiftKey: domevent.shiftKey,\n                metaKey: domevent.metaKey,\n\n                pointerType: domevent.pointerType,\n                nodeName: target.nodeName,\n\n                clientId: this.clientId,\n                pageName: this.pageName,\n                tabId: this.tabId,\n            }\n        }\n\n        if (frmVals.length > 0) {\n            frmVals.forEach( entry => {\n                msg.payload[entry.key] = entry.val\n            })\n        }\n\n        if (domevent.type === 'change') {\n            // Checkboxes don't have a value!!\n            msg._ui.newValue = msg.payload.value = 'checked' in target ? target.checked : domevent.target.value\n        }\n\n        log('trace', 'Uib:eventSend', 'Sending msg to Node-RED', msg)()\n        if (target.dataset && target.dataset.length === 0) log('warn', 'Uib:eventSend', 'No payload in msg. data-* attributes should be used.')()\n\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Send a standard message to NR\n     * @example uibuilder.send({payload:'Hello'})\n     * @param {object} msg Message to send\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    send(msg, originator = '') {\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Send a control msg to NR\n     * @param {object} msg Message to send\n     */\n    sendCtrl(msg) {\n        this._send(msg, this._ioChannels.control)\n    }\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Socket.IO -------- //\n\n    /** Return the Socket.IO namespace\n     * The cookie method is the most reliable but this falls back to trying to work it\n     * out from the URL if cookies not available. That won't work if page is in a sub-folder.\n     * since 2017-10-21 Improve method to cope with more complex paths - thanks to Steve Rickus @shrickus\n     * since 2017-11-10 v1.0.1 Check cookie first then url. cookie works even if the path is more complex (e.g. sub-folder)\n     * since 2020-01-25 Removed httpRoot from namespace to prevent proxy induced errors\n     * @returns {string} Socket.IO namespace\n     */\n    _getIOnamespace() {\n\n        let ioNamespace\n\n        /** Try getting the namespace cookie. */\n        ioNamespace = this.cookies['uibuilder-namespace']\n\n        // if it wasn't available, try using the current url path\n        if (ioNamespace === undefined || ioNamespace === '') {\n            // split url path & eliminate any blank elements, and trailing or double slashes\n            const u = window.location.pathname.split('/')\n                .filter(function (t) { return t.trim() !== '' })\n\n            /** since v2.0.5 Extra check for 0 length, Issue #73. since 2017-11-06 If the last element of the path is an .html file name, remove it */\n            if (u.length > 0 && (u[u.length - 1].endsWith('.html'))) u.pop()\n\n            // Get the last part of the url path, this MUST match the namespace in uibuilder\n            ioNamespace = u.pop()\n\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via url path: ${ioNamespace}`)()\n        } else {\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via cookie: ${ioNamespace}`)()\n        }\n\n        this.url = ioNamespace\n        // Namespace HAS to start with a /\n        ioNamespace = '/' + ioNamespace\n\n        log('trace', 'uibuilder.module.js:getIOnamespace', `Final Socket.IO namespace: ${ioNamespace}`)()\n\n        return ioNamespace\n    } // --- End of set IO namespace --- //\n\n    /** Function used to check whether Socket.IO is connected to the server, reconnect if not (recursive)\n     * @param {number} [delay] Initial delay before checking (ms). Default=2000ms\n     * @param {number} [factor] Multiplication factor for subsequent checks (delay*factor). Default=1.5\n     * @param {number} [depth] Recursion depth\n     * @returns {boolean|undefined} Whether or not Socket.IO is connected to uibuilder in Node-RED\n     */\n    _checkConnect(delay, factor, depth = 1) {\n        if ( navigator.onLine === false ) return // Don't bother if we know we are offline\n\n        if (!delay) delay = this.retryMs\n        if (!factor) factor = this.retryFactor\n\n        log('trace', 'Uib:checkConnect', `Checking connection. Connected: ${this._socket.connected}. Timer: ${this.#timerid}. Depth: ${depth}. Delay: ${delay}. Factor: ${factor}`, this._socket)()\n\n        // If we are connected ...\n        if (this._socket.connected === true) {\n            // Clear the setTimeout\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this.set('ioConnected', true)\n            this.set('socketError', null)\n            return true\n        }\n\n        // ... we aren't connected so:\n        this.set('ioConnected', false)\n\n        // we only want one running at a time\n        if (this.#timerid) window.clearTimeout(this.#timerid)\n\n        // Create the new timer\n        this.#timerid = window.setTimeout(() => {\n            log('warn', 'Uib:checkConnect:setTimeout', `Socket.IO reconnection attempt. Current delay: ${delay}. Depth: ${depth}`)()\n\n            // this is necessary sometimes when the socket fails to connect on startup\n            this._socket.close()\n\n            // Try to reconnect\n            this._socket.connect()\n\n            // don't need to check whether we have connected as the timer will have been cleared if we have\n            this.#timerid = null\n\n            // @ts-ignore Create new timer for next time round with extended delay\n            this._checkConnect(delay * factor, factor, depth++)\n        }, delay)\n\n        return false\n    } // --- End of checkConnect Fn--- //\n\n    // See message handling section for msg receipt handlers\n\n    /** Called by _ioSetup when Socket.IO connects to Node-RED */\n    _onConnect() {\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n        log('info', 'Uib:ioSetup', `\u2705 SOCKET CONNECTED. Connection count: ${this.connectedNum}, Is a Recovery?: ${this._socket.recovered}. \\nNamespace: ${this.ioNamespace}`)()\n        this._dispatchCustomEvent('uibuilder:socket:connected', { 'numConnections': this.connectedNum, 'isRecovery': this._socket.recovered })\n\n        this._checkConnect() // resets any reconnection timers & sets connected flag\n    }\n\n    /** Called by _ioSetup when Socket.IO disconnects from Node-RED\n     * @param {string} reason Disconnection title\n     */\n    _onDisconnect(reason) {\n        // reason === 'io server disconnect' - redeploy of Node instance\n        // reason === 'transport close' - Node-RED terminating\n        // reason === 'ping timeout' - didn't receive a pong response?\n        log('info', 'Uib:ioSetup:socket-disconnect', `\u26D4 Socket Disconnected. Reason: ${reason}`)()\n\n        this._dispatchCustomEvent('uibuilder:socket:disconnected', reason)\n\n        /** A workaround for SIO's failure to reconnect after a disconnection */\n        this._checkConnect()\n    }\n\n    /** Setup Socket.io\n     * since v2.0.0-beta2 Moved to a function and called by the user (uibuilder.start()) so that namespace & path can be passed manually if needed\n     * @returns {boolean} Attaches socket.io manager to self._socket and updates self.ioNamespace & self.ioPath as needed\n     */\n    _ioSetup() {\n\n        // Just a notification, actual load is done outside the class (see start of file)\n        if (io === undefined) {\n            log('error', 'Uib:ioSetup', 'Socket.IO client not loaded, Node-RED comms will not work')()\n            return false\n        }\n\n        // If socket is already set up, close it and remove all of the listeners\n        if (this._socket) {\n            log('trace', 'Uib:ioSetup', 'Removing listeners in preparation for redoing Socket.IO connections')()\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this._socket.close()\n            this._socket.offAny()\n            this._socket = undefined\n            this.set('ioConnected', false)\n        }\n\n        // Update the URL path to make sure we have the right one\n        this.socketOptions.path = this.ioPath\n\n        // NOTE: this._socket.auth is now set by callback and so automatically updated for each client (re)connection. No need to set here\n\n        // Create the socket - make sure client uses Socket.IO version from the uibuilder module (using path)\n        log('trace', 'Uib:ioSetup', `About to create IO object. Transports: [${this.socketOptions.transports.join(', ')}]`)()\n        this._socket = io(this.ioNamespace, this.socketOptions)\n\n        /** When the socket is connected - set ioConnected flag and reset connect timer  */\n        this._socket.on('connect', this._onConnect.bind(this))\n\n        // RECEIVE a STANDARD, non-control msg from Node-RED server\n        this._socket.on(this._ioChannels.server, this._stdMsgFromServer.bind(this))\n\n        // RECEIVE a CONTROL msg from Node-RED server - see also sendCtrl()\n        this._socket.on(this._ioChannels.control, this._ctrlMsgFromServer.bind(this))\n\n        // When the socket is disconnected ..............\n        this._socket.on('disconnect', this._onDisconnect.bind(this))\n\n        // Socket.io connection error - probably the wrong ioPath - or client is offline\n        this._socket.on('connect_error', (err) => {\n            if ( navigator.onLine === false ) return // Don't bother with an error if we know we are offline\n            log('error', 'Uib:ioSetup:connect_error', `\u274C Socket.IO Connect Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket connect error processing ---\n\n        // Socket.io error - from the server (socket.use middleware triggered an error response)\n        this._socket.on('error', (err) => {\n            log('error', 'Uib:ioSetup:error', `\u274C Socket.IO Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket error processing ---\n\n        // Ensure we are connected, retry if not\n        this._checkConnect()\n\n        return true\n\n        /* We really don't need these, just for interest\n            self._socket.io.on('packet', function onPacket(data){\n                // we get one of these for each REAL msg (not ping/pong)\n                console.debug('PACKET', data)\n            })\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n                //console.dir(self._socket)\n            }) // --- End of socket pong processing ---\n            self._socket.io.on('packet', function(data){\n                // We get one of these for actual messages, not ping/pong\n                console.debug('PACKET', data)\n            })\n            self._socket.on('connect_timeout', function(timeout) {\n                console.debug('SOCKET CONNECT TIMEOUT - Namespace: ' + ioNamespace + ', Timeout: ' + timeout)\n            }) // --- End of socket connect timeout processing ---\n            self._socket.on('reconnect', function(attemptNum) {\n                console.debug('SOCKET RECONNECTED - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect processing ---\n            self._socket.on('reconnect_attempt', function(attemptNum) {\n                console.debug('SOCKET RECONNECT ATTEMPT - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect_attempt processing ---\n            self._socket.on('reconnecting', function(attemptNum) {\n                console.debug('SOCKET RECONNECTING - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnecting processing ---\n            self._socket.on('reconnect_error', function(err) {\n                console.debug('SOCKET RECONNECT ERROR - Namespace: ' + ioNamespace + ', Reason: ' + err.message)\n                //console.dir(err)\n            }) // --- End of socket reconnect_error processing ---\n            self._socket.on('reconnect_failed', function() {\n                console.debug('SOCKET RECONNECT FAILED - Namespace: ' + ioNamespace)\n            }) // --- End of socket reconnect_failed processing ---\n            self._socket.on('ping', function() {\n                console.debug('SOCKET PING')\n            }) // --- End of socket ping processing ---\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n            }) // --- End of socket pong processing ---\n            */\n    } // ---- End of ioSetup ---- //\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Class construction & startup method -------- //\n\n    constructor() {\n        log('trace', 'Uib:constructor', 'Starting')()\n\n        // Track whether the client is online or offline\n        window.addEventListener('offline', (e) => {\n            this.set('online', false)\n            this.set('ioConnected', false)\n            log('warn', 'Browser', 'DISCONNECTED from network')()\n        })\n        window.addEventListener('online', (e) => {\n            this.set('online', true)\n            log('warn', 'Browser', 'Reconnected to network')()\n            this._checkConnect()\n        })\n\n        document.cookie.split(';').forEach((c) => {\n            const splitC = c.split('=')\n            this.cookies[splitC[0].trim()] = splitC[1]\n        })\n\n        /** Client ID set by uibuilder - lasts until browser profile is closed, applies to all tabs */\n        this.set('clientId', this.cookies['uibuilder-client-id'])\n        log('trace', 'Uib:constructor', 'Client ID: ', this.clientId)()\n\n        /** Tab ID - lasts while the tab is open (even if reloaded)\n         * WARNING: Duplicating a tab retains the same tabId\n         */\n        this.set('tabId', window.sessionStorage.getItem('tabId'))\n        if (!this.tabId) {\n            this.set('tabId', `t${Math.floor(Math.random() * 1000000)}`)\n            window.sessionStorage.setItem('tabId', this.tabId)\n        }\n\n        // document.addEventListener('pagehide', (event) => {\n        //     // console.log(`pagehide. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pagehide. From Cache?: ${event.persisted}`)\n        // })\n        // document.addEventListener('pageshow', (event) => {\n        //     // console.log(`pageshow. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pageshow. From Cache?: ${event.persisted}`)\n        // })\n        document.addEventListener('load', () => {\n            this.set('isVisible', true)\n        })\n        document.addEventListener('visibilitychange', () => {\n            // hidden=unload, minimise. visible=un-minimise (not fired on load)\n            this.set('isVisible', document.visibilityState === 'visible')\n            this.sendCtrl({ uibuilderCtrl: 'visibility', isVisible: this.isVisible })\n            // navigator.userActivation is experimental Chromium only\n            // console.log('visibilitychange', ':', `Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n            // navigator.sendBeacon('./_clientLog', `${(new Date()).toISOString()} Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n        })\n\n        // Set a listener to update showStatus table if it is active\n        document.addEventListener('uibuilder:propertyChanged', (event) => {\n            if (!this.#isShowStatus) return\n\n            // @ts-ignore\n            if (event.detail.prop in this.#showStatus) {\n                // @ts-ignore\n                document.querySelector(`td[data-vartype=\"${event.detail.prop}\"]`).innerText = JSON.stringify(event.detail.value)\n            }\n        })\n\n        this.set('ioNamespace', this._getIOnamespace())\n\n        //#region - Try to make sure client uses Socket.IO client version from the uibuilder module (using cookie or path) @since v2.0.0 2019-02-24 allows for httpNodeRoot\n\n        /** httpNodeRoot (to set path) */\n        if ('uibuilder-webRoot' in this.cookies) {\n            this.set('httpNodeRoot', this.cookies['uibuilder-webRoot'])\n            log('trace', 'Uib:constructor', `httpNodeRoot set by cookie to \"${this.httpNodeRoot}\"`)()\n        } else {\n            // split current url path, eliminate any blank elements and trailing or double slashes\n            const fullPath = window.location.pathname.split('/').filter(function (t) { return t.trim() !== '' })\n            /** handle url includes file name - @since v2.0.5 Extra check for 0 length, Issue #73. */\n            if (fullPath.length > 0 && fullPath[fullPath.length - 1].endsWith('.html')) fullPath.pop()\n            fullPath.pop() // gives the last path section of the url\n            this.set('httpNodeRoot', `/${fullPath.join('/')}`)\n            log('trace', '[Uib:constructor]', `httpNodeRoot set by URL parsing to \"${this.httpNodeRoot}\". NOTE: This may fail for pages in sub-folders.`)()\n        }\n        this.set('ioPath', urlJoin(this.httpNodeRoot, Uib._meta.displayName, 'vendor', 'socket.io'))\n        log('trace', 'Uib:constructor', `ioPath: \"${this.ioPath}\"`)()\n\n        //#endregion\n\n        // Work out pageName\n        this.set('pageName', window.location.pathname.replace(`${this.ioNamespace}/`, ''))\n        if ( this.pageName.endsWith('/') ) this.set('pageName', `${this.pageName}index.html`)\n        if ( this.pageName === '' ) this.set('pageName', 'index.html')\n\n        // Attempt to restore autoload variables\n        try {\n            const autoloadVars = this.getStore('_uibAutoloadVars')\n            if (Object.keys(autoloadVars).length > 0) {\n                Object.keys(autoloadVars).forEach( (id) => {\n                    this.set(id, this.getStore(id))\n                })\n            }\n        } catch (e) {}\n\n        this._dispatchCustomEvent('uibuilder:constructorComplete')\n\n        log('trace', 'Uib:constructor', 'Ending')()\n    }\n\n    /** Start up Socket.IO comms and listeners\n     * This has to be done separately because if running from a web page in a sub-folder of src/dist, uibuilder cannot\n     * necessarily work out the correct ioPath to use.\n     * Also, if cookies aren't permitted in the browser, both ioPath and ioNamespace may need to be specified.\n     * @param {object} [options] The start options object.\n     * @returns {void}\n     */\n    start(options) {\n        log('trace', 'Uib:start', 'Starting')()\n\n        // Cancel the msg event handler if already present\n        if ( this.#MsgHandler ) this.cancelChange('msg', this.#MsgHandler)\n\n        if (this.started === true) {\n            log('info', 'Uib:start', 'Start function already called. Resetting Socket.IO and msg handler.')()\n        }\n\n        log('log', 'Uib:start', 'Cookies: ', this.cookies, `\\nClient ID: ${this.clientId}`)()\n        log('trace', 'Uib:start', 'ioNamespace: ', this.ioNamespace, `\\nioPath: ${this.ioPath}`)()\n\n        // Handle options\n        if (options) {\n            if (options.ioNamespace !== undefined && options.ioNamespace !== null && options.ioNamespace !== '') this.set('ioNamespace', options.ioNamespace)\n            if (options.ioPath !== undefined && options.ioPath !== null && options.ioPath !== '') this.set('ioPath', options.ioPath)\n            // See below for handling of options.loadStylesheet\n        }\n\n        // Do we need to load styles?\n        if ( document.styleSheets.length >= 1 || (document.styleSheets.length === 1 && document.styleSheets[0].cssRules.length === 0) ) {\n            log('info', 'Uib:start', 'Styles already loaded so not loading uibuilder default styles.')()\n        } else {\n            if (options && options.loadStylesheet === false) log('info', 'Uib:start', 'No styles loaded & options.loadStylesheet === false.')()\n            else {\n                log('info', 'Uib:start', 'No styles loaded, loading uibuilder default styles.')()\n                this.loadStyleSrc(`${this.httpNodeRoot}/uibuilder/uib-brand.min.css`)\n            }\n        }\n\n        /** Handle specialist messages like reload and _ui -> Moved to _msgRcvdEvents */\n\n        // Track last browser navigation type: navigate, reload, back_forward, prerender\n        const [entry] = performance.getEntriesByType('navigation')\n        // @ts-ignore\n        this.set('lastNavType', entry.type)\n\n        // Start up (or restart) Socket.IO connections and listeners. Returns false if io not found\n        this.set('started', this._ioSetup())\n\n        if ( this.started === true ) {\n            log('trace', 'Uib:start', 'Start completed. Socket.IO client library loaded.')()\n        } else {\n            log('error', 'Uib:start', 'Start completed. ERROR: Socket.IO client library NOT LOADED.')()\n        }\n\n        // Watch for URL hash changes in case using a front-end router. Updates watched var `urlHash` and socket.io `auth.urlHash`\n        this._watchHashChanges()\n\n        // Check if Vue is present (used for dynamic UI processing)\n        if (window['Vue']) {\n            this.set('isVue', true)\n            try {\n                this.set('vueVersion', window['Vue'].version)\n            } catch (e) { }\n            log('trace', 'Uib:start', `VueJS is loaded. Version: ${this.vueVersion}`)()\n        } else {\n            log('trace', 'Uib:start', 'VueJS is not loaded.')()\n        }\n\n        // Check if DOMPurify library is loaded\n        if (window['DOMPurify']) {\n            this.set('purify', true)\n            log('trace', 'Uib:start', 'DOMPurify is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'DOMPurify is not loaded.')()\n        }\n        // Check if Markdown-IT library is loaded\n        if (window['markdownit']) {\n            this.set('markdown', true)\n            log('trace', 'Uib:start', 'Markdown-IT is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'Markdown-IT is not loaded.')()\n        }\n\n        // if (window['DOMPurify']) {\n        //     this.set('purify', true)\n        //     log('trace', 'Uib:start', 'DOMPurify is loaded.')\n        // } else {\n        //     log('trace', 'Uib:start', 'DOMPurify is not loaded.')\n        // }\n\n        // Set up msg listener for the optional showMsg\n        this.onChange('msg', (msg) => {\n            if (this.#isShowMsg === true) {\n                const eMsg = document.getElementById('uib_last_msg')\n                if (eMsg) eMsg.innerHTML = this.syntaxHighlight(msg)\n            }\n        })\n\n        this._dispatchCustomEvent('uibuilder:startComplete')\n    }\n\n    //#endregion -------- ------------ -------- //\n} // ==== End of Class Uib ====\n\n//#region --- Wrap up - get things started ---\n\n// Create an instance (we will only ever want one)\nconst uibuilder = new Uib()\n\n// Assign reference to the instance to the global `window` object\n// Only useful if loading via <script> tag - prefer loading via `import uibuilder from ...`\nif (!window['uibuilder']) {\n    window['uibuilder'] = uibuilder\n} else {\n    log('error', 'uibuilder.module.js', '`uibuilder` already assigned to window. Have you tried to load it more than once?')\n}\nif (!window['uib']) {\n    window['uib'] = uibuilder\n} else {\n    log('warn', 'uibuilder.module.js', '`uib` shortcut already assigned to window.')\n}\n\n// Assign `$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$`.\nif (!window['$']) {\n    /** @type {HTMLElement} */\n    window['$'] = window['uibuilder'].$ // document.querySelector.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` or `uib.$` instead.')\n}\n// Assign `$$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$$']) {\n    /** @type {HTMLElement} */\n    window['$$'] = window['uibuilder'].$$ // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` or `uib.$$` instead.')\n}\n\n// Assign `$ui` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$ui']) {\n    /** @type {HTMLElement} */\n    window['$ui'] = window['uibuilder'].$ui // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$ui`, it is already in use. Use `uibuilder.$ui` or `uib.$ui` instead.')\n}\n\n// Can import as `import uibuilder from ...` OR `import {uibuilder} from ...`\nexport { uibuilder }\nexport default uibuilder\n\n// Attempt to run start fn\nuibuilder.start()\n\n// Add the class as a new Custom Element to the window object\ncustomElements.define('uib-var', UibVar)\n\n//#endregion --- Wrap up ---\n\n// EOF\n", "/** A zero dependency web component that will display a managed uibuilder variable.\n *\n * Version: 0.0.1 2023-10-07\n *\n * ToDo:\n * -\n */\n/*\n  Copyright (c) 2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n// const template = document.createElement('template')\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<link type=\"text/css\" rel=\"stylesheet\" href=\"\"../uibuilder/uib-brand.min.css\"\" media=\"all\"><span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`\n// {/* <style>@import url(\"../uibuilder/uib-brand.min.css\");</style><span></span> */}\n// `\n\nexport default class UibVar extends HTMLElement {\n    //#region --- Class Properties ---\n    /** @type {string} Name of the uibuilder mangaged variable to use */\n    variable\n    /** Current value of the watched variable */\n    value\n    /** Whether to output if the variable is undefined */\n    undefined = false\n    /** Whether to send update value to Node-RED on change */\n    report = false\n    /** What is the value type */\n    type = 'plain'\n    /** what are the available types? */\n    types = ['plain', 'html', 'markdown', 'object']\n\n    /** Mini jQuery-like shadow dom selector (see constructor) */\n    $\n    \n    /** Holds a count of how many instances of this component are on the page */\n    static _iCount = 0\n    /** @type {Array<string>} List of all of the html attribs (props) listened to */\n    static props = ['name', 'id', 'variable', 'undefined', 'report', 'type']\n    //#endregion --- Class Properties ---\n\n    constructor() {\n        super()\n        this.shadow = this.attachShadow({ mode: 'open', delegatesFocus: true })\n            // .append(template.content.cloneNode(true))\n\n        this.$ = this.shadowRoot.querySelector.bind(this.shadowRoot)\n\n        // Apply external styles to the shadow dom\n        this.css = document.createElement(\"link\")\n        this.css.setAttribute(\"type\", \"text/css\")\n        this.css.setAttribute(\"rel\", \"stylesheet\")\n        this.css.setAttribute(\"href\", \"../uibuilder/uib-brand.min.css\")\n\n        this.dispatchEvent(new Event(`uib-var:construction`, { bubbles: true, composed: true }))\n    }\n\n    // Makes HTML attribute change watched\n    static get observedAttributes() {\n        return UibVar.props\n    }\n\n    /** NOTE: On initial startup, this is called for each watched attrib set in HTML - BEFORE connectedCallback is called  */\n    attributeChangedCallback(attrib, oldVal, newVal) {\n        if ( oldVal === newVal ) return\n\n        switch (attrib) {\n            case 'variable': {\n                if (newVal === '') throw new Error('[uib-var] Attribute \"variable\" MUST be set to a UIBUILDER managed variable name')\n                this.variable = newVal\n                this.doWatch()\n                break\n            }\n            case 'undefined': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.undefined = true\n                else this.undefined = false\n                break\n            }\n            case 'report': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.report = true\n                else this.report = false\n                break\n            }\n            case 'type': {\n                if (newVal === '' || !this.types.includes(newVal.toLowerCase())) this.type = 'plain'\n                else this.type = newVal\n                break\n            }\n\n            default: {\n                this[attrib] = newVal\n                break\n            }\n        }\n    } // --- end of attributeChangedCallback --- //\n\n    // Runs when an instance is added to the DOM\n    connectedCallback() {\n        // Make sure instance has an ID. Create an id from name or calculation if needed\n        if (!this.id) {\n            if (!this.name) this.name = this.getAttribute('name')\n            if (this.name) this.id = this.name.toLowerCase().replace(/\\s/g, '_')\n            else this.id = `uib-var-${++UibVar._iCount}`\n        }\n    }  // ---- end of connectedCallback ---- //\n\n    // Runs when an instance is removed from the DOM\n    // disconnectedCallback() {} // ---- end of disconnectedCallback ---- //\n\n    /** Process changes to the required uibuilder variable */\n    doWatch() {\n        if (!this.variable) throw new Error('No variable name provided')\n        // if (!window['uibuilder']) throw new Error('UIBUILDER client library not loaded - this component must be loaded AFTER the UIBUILDER library')\n\n        this.value = window['uibuilder'].get(this.variable)\n        this.varDom()\n\n        // Watch for changes in the variable\n        window['uibuilder'].onChange(this.variable, (val) => {\n            this.value = val\n            this.varDom()\n            if (this.report === true) window['uibuilder'].send({topic: this.variable, payload: this.value || undefined})\n        })\n    }\n\n    /** Convert this.value to DOM output */\n    varDom() {\n        // If user doesn't want to show undefined vars, allow the component slot to show instead\n        if (this.value === undefined && this.undefined !== true) { \n            this.shadow.innerHTML = '<slot></slot>'\n            return\n        }\n        \n        let val = this.value\n\n        // console.log('\uD83E\uDDEA varDOM: ', val, typeof val, this.type)\n\n        switch (this.type) {\n            case 'markdown': {\n                this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(window['uibuilder'].convertMarkdown(val))\n                break\n            }\n        \n            case 'object': {\n                // console.log(window['uibuilder'].syntaxHighlight(val))\n                this.shadow.innerHTML = `<pre class=\"syntax-highlight\">${window['uibuilder'].syntaxHighlight(val)}</pre>`\n                break\n            }\n        \n            case 'plain':\n            case 'html':\n            default: {\n                const t = typeof val\n                if (Array.isArray(val) || t === '[object Object]' || t === 'object') {\n                    try {\n                        this.shadow.innerHTML = JSON.stringify(val)\n                    } catch (e) {\n                        this.shadow.innerHTML = val\n                    }\n                } else {\n                    this.shadow.innerHTML = val\n                }\n                break\n            }\n        }\n\n        this.shadow.appendChild(this.css)\n        // this.$('span').innerHTML = window['uibuilder'].sanitiseHTML(val)\n        // this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(val)\n    }\n}\n\n// Add the class as a new Custom Element to the window object \n// customElements.define('uib-var', UibVar)\n", "const PACKET_TYPES = Object.create(null); // no Map = no polyfill\nPACKET_TYPES[\"open\"] = \"0\";\nPACKET_TYPES[\"close\"] = \"1\";\nPACKET_TYPES[\"ping\"] = \"2\";\nPACKET_TYPES[\"pong\"] = \"3\";\nPACKET_TYPES[\"message\"] = \"4\";\nPACKET_TYPES[\"upgrade\"] = \"5\";\nPACKET_TYPES[\"noop\"] = \"6\";\nconst PACKET_TYPES_REVERSE = Object.create(null);\nObject.keys(PACKET_TYPES).forEach(key => {\n    PACKET_TYPES_REVERSE[PACKET_TYPES[key]] = key;\n});\nconst ERROR_PACKET = { type: \"error\", data: \"parser error\" };\nexport { PACKET_TYPES, PACKET_TYPES_REVERSE, ERROR_PACKET };\n", "import { PACKET_TYPES } from \"./commons.js\";\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        Object.prototype.toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\n// ArrayBuffer.isView method is not defined in IE10\nconst isView = obj => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj && obj.buffer instanceof ArrayBuffer;\n};\nconst encodePacket = ({ type, data }, supportsBinary, callback) => {\n    if (withNativeBlob && data instanceof Blob) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(data, callback);\n        }\n    }\n    else if (withNativeArrayBuffer &&\n        (data instanceof ArrayBuffer || isView(data))) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(new Blob([data]), callback);\n        }\n    }\n    // plain string\n    return callback(PACKET_TYPES[type] + (data || \"\"));\n};\nconst encodeBlobAsBase64 = (data, callback) => {\n    const fileReader = new FileReader();\n    fileReader.onload = function () {\n        const content = fileReader.result.split(\",\")[1];\n        callback(\"b\" + (content || \"\"));\n    };\n    return fileReader.readAsDataURL(data);\n};\nfunction toArray(data) {\n    if (data instanceof Uint8Array) {\n        return data;\n    }\n    else if (data instanceof ArrayBuffer) {\n        return new Uint8Array(data);\n    }\n    else {\n        return new Uint8Array(data.buffer, data.byteOffset, data.byteLength);\n    }\n}\nlet TEXT_ENCODER;\nexport function encodePacketToBinary(packet, callback) {\n    if (withNativeBlob && packet.data instanceof Blob) {\n        return packet.data\n            .arrayBuffer()\n            .then(toArray)\n            .then(callback);\n    }\n    else if (withNativeArrayBuffer &&\n        (packet.data instanceof ArrayBuffer || isView(packet.data))) {\n        return callback(toArray(packet.data));\n    }\n    encodePacket(packet, false, encoded => {\n        if (!TEXT_ENCODER) {\n            TEXT_ENCODER = new TextEncoder();\n        }\n        callback(TEXT_ENCODER.encode(encoded));\n    });\n}\nexport { encodePacket };\n", "// imported from https://github.com/socketio/base64-arraybuffer\nconst chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';\n// Use a lookup table to find the index.\nconst lookup = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);\nfor (let i = 0; i < chars.length; i++) {\n    lookup[chars.charCodeAt(i)] = i;\n}\nexport const encode = (arraybuffer) => {\n    let bytes = new Uint8Array(arraybuffer), i, len = bytes.length, base64 = '';\n    for (i = 0; i < len; i += 3) {\n        base64 += chars[bytes[i] >> 2];\n        base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];\n        base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];\n        base64 += chars[bytes[i + 2] & 63];\n    }\n    if (len % 3 === 2) {\n        base64 = base64.substring(0, base64.length - 1) + '=';\n    }\n    else if (len % 3 === 1) {\n        base64 = base64.substring(0, base64.length - 2) + '==';\n    }\n    return base64;\n};\nexport const decode = (base64) => {\n    let bufferLength = base64.length * 0.75, len = base64.length, i, p = 0, encoded1, encoded2, encoded3, encoded4;\n    if (base64[base64.length - 1] === '=') {\n        bufferLength--;\n        if (base64[base64.length - 2] === '=') {\n            bufferLength--;\n        }\n    }\n    const arraybuffer = new ArrayBuffer(bufferLength), bytes = new Uint8Array(arraybuffer);\n    for (i = 0; i < len; i += 4) {\n        encoded1 = lookup[base64.charCodeAt(i)];\n        encoded2 = lookup[base64.charCodeAt(i + 1)];\n        encoded3 = lookup[base64.charCodeAt(i + 2)];\n        encoded4 = lookup[base64.charCodeAt(i + 3)];\n        bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n        bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n        bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n    }\n    return arraybuffer;\n};\n", "import { ERROR_PACKET, PACKET_TYPES_REVERSE } from \"./commons.js\";\nimport { decode } from \"./contrib/base64-arraybuffer.js\";\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nexport const decodePacket = (encodedPacket, binaryType) => {\n    if (typeof encodedPacket !== \"string\") {\n        return {\n            type: \"message\",\n            data: mapBinary(encodedPacket, binaryType)\n        };\n    }\n    const type = encodedPacket.charAt(0);\n    if (type === \"b\") {\n        return {\n            type: \"message\",\n            data: decodeBase64Packet(encodedPacket.substring(1), binaryType)\n        };\n    }\n    const packetType = PACKET_TYPES_REVERSE[type];\n    if (!packetType) {\n        return ERROR_PACKET;\n    }\n    return encodedPacket.length > 1\n        ? {\n            type: PACKET_TYPES_REVERSE[type],\n            data: encodedPacket.substring(1)\n        }\n        : {\n            type: PACKET_TYPES_REVERSE[type]\n        };\n};\nconst decodeBase64Packet = (data, binaryType) => {\n    if (withNativeArrayBuffer) {\n        const decoded = decode(data);\n        return mapBinary(decoded, binaryType);\n    }\n    else {\n        return { base64: true, data }; // fallback for old browsers\n    }\n};\nconst mapBinary = (data, binaryType) => {\n    switch (binaryType) {\n        case \"blob\":\n            if (data instanceof Blob) {\n                // from WebSocket + binaryType \"blob\"\n                return data;\n            }\n            else {\n                // from HTTP long-polling or WebTransport\n                return new Blob([data]);\n            }\n        case \"arraybuffer\":\n        default:\n            if (data instanceof ArrayBuffer) {\n                // from HTTP long-polling (base64) or WebSocket + binaryType \"arraybuffer\"\n                return data;\n            }\n            else {\n                // from WebTransport (Uint8Array)\n                return data.buffer;\n            }\n    }\n};\n", "import { encodePacket, encodePacketToBinary } from \"./encodePacket.js\";\nimport { decodePacket } from \"./decodePacket.js\";\nimport { ERROR_PACKET } from \"./commons.js\";\nconst SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text\nconst encodePayload = (packets, callback) => {\n    // some packets may be added to the array while encoding, so the initial length must be saved\n    const length = packets.length;\n    const encodedPackets = new Array(length);\n    let count = 0;\n    packets.forEach((packet, i) => {\n        // force base64 encoding for binary packets\n        encodePacket(packet, false, encodedPacket => {\n            encodedPackets[i] = encodedPacket;\n            if (++count === length) {\n                callback(encodedPackets.join(SEPARATOR));\n            }\n        });\n    });\n};\nconst decodePayload = (encodedPayload, binaryType) => {\n    const encodedPackets = encodedPayload.split(SEPARATOR);\n    const packets = [];\n    for (let i = 0; i < encodedPackets.length; i++) {\n        const decodedPacket = decodePacket(encodedPackets[i], binaryType);\n        packets.push(decodedPacket);\n        if (decodedPacket.type === \"error\") {\n            break;\n        }\n    }\n    return packets;\n};\nexport function createPacketEncoderStream() {\n    return new TransformStream({\n        transform(packet, controller) {\n            encodePacketToBinary(packet, encodedPacket => {\n                const payloadLength = encodedPacket.length;\n                let header;\n                // inspired by the WebSocket format: https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API/Writing_WebSocket_servers#decoding_payload_length\n                if (payloadLength < 126) {\n                    header = new Uint8Array(1);\n                    new DataView(header.buffer).setUint8(0, payloadLength);\n                }\n                else if (payloadLength < 65536) {\n                    header = new Uint8Array(3);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 126);\n                    view.setUint16(1, payloadLength);\n                }\n                else {\n                    header = new Uint8Array(9);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 127);\n                    view.setBigUint64(1, BigInt(payloadLength));\n                }\n                // first bit indicates whether the payload is plain text (0) or binary (1)\n                if (packet.data && typeof packet.data !== \"string\") {\n                    header[0] |= 0x80;\n                }\n                controller.enqueue(header);\n                controller.enqueue(encodedPacket);\n            });\n        }\n    });\n}\nlet TEXT_DECODER;\nfunction totalLength(chunks) {\n    return chunks.reduce((acc, chunk) => acc + chunk.length, 0);\n}\nfunction concatChunks(chunks, size) {\n    if (chunks[0].length === size) {\n        return chunks.shift();\n    }\n    const buffer = new Uint8Array(size);\n    let j = 0;\n    for (let i = 0; i < size; i++) {\n        buffer[i] = chunks[0][j++];\n        if (j === chunks[0].length) {\n            chunks.shift();\n            j = 0;\n        }\n    }\n    if (chunks.length && j < chunks[0].length) {\n        chunks[0] = chunks[0].slice(j);\n    }\n    return buffer;\n}\nexport function createPacketDecoderStream(maxPayload, binaryType) {\n    if (!TEXT_DECODER) {\n        TEXT_DECODER = new TextDecoder();\n    }\n    const chunks = [];\n    let state = 0 /* READ_HEADER */;\n    let expectedLength = -1;\n    let isBinary = false;\n    return new TransformStream({\n        transform(chunk, controller) {\n            chunks.push(chunk);\n            while (true) {\n                if (state === 0 /* READ_HEADER */) {\n                    if (totalLength(chunks) < 1) {\n                        break;\n                    }\n                    const header = concatChunks(chunks, 1);\n                    isBinary = (header[0] & 0x80) === 0x80;\n                    expectedLength = header[0] & 0x7f;\n                    if (expectedLength < 126) {\n                        state = 3 /* READ_PAYLOAD */;\n                    }\n                    else if (expectedLength === 126) {\n                        state = 1 /* READ_EXTENDED_LENGTH_16 */;\n                    }\n                    else {\n                        state = 2 /* READ_EXTENDED_LENGTH_64 */;\n                    }\n                }\n                else if (state === 1 /* READ_EXTENDED_LENGTH_16 */) {\n                    if (totalLength(chunks) < 2) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 2);\n                    expectedLength = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length).getUint16(0);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else if (state === 2 /* READ_EXTENDED_LENGTH_64 */) {\n                    if (totalLength(chunks) < 8) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 8);\n                    const view = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length);\n                    const n = view.getUint32(0);\n                    if (n > Math.pow(2, 53 - 32) - 1) {\n                        // the maximum safe integer in JavaScript is 2^53 - 1\n                        controller.enqueue(ERROR_PACKET);\n                        break;\n                    }\n                    expectedLength = n * Math.pow(2, 32) + view.getUint32(4);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else {\n                    if (totalLength(chunks) < expectedLength) {\n                        break;\n                    }\n                    const data = concatChunks(chunks, expectedLength);\n                    controller.enqueue(decodePacket(isBinary ? data : TEXT_DECODER.decode(data), binaryType));\n                    state = 0 /* READ_HEADER */;\n                }\n                if (expectedLength === 0 || expectedLength > maxPayload) {\n                    controller.enqueue(ERROR_PACKET);\n                    break;\n                }\n            }\n        }\n    });\n}\nexport const protocol = 4;\nexport { encodePacket, encodePayload, decodePacket, decodePayload };\n", "/**\n * Initialize a new `Emitter`.\n *\n * @api public\n */\n\nexport function Emitter(obj) {\n  if (obj) return mixin(obj);\n}\n\n/**\n * Mixin the emitter properties.\n *\n * @param {Object} obj\n * @return {Object}\n * @api private\n */\n\nfunction mixin(obj) {\n  for (var key in Emitter.prototype) {\n    obj[key] = Emitter.prototype[key];\n  }\n  return obj;\n}\n\n/**\n * Listen on the given `event` with `fn`.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.on =\nEmitter.prototype.addEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])\n    .push(fn);\n  return this;\n};\n\n/**\n * Adds an `event` listener that will be invoked a single\n * time then automatically removed.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.once = function(event, fn){\n  function on() {\n    this.off(event, on);\n    fn.apply(this, arguments);\n  }\n\n  on.fn = fn;\n  this.on(event, on);\n  return this;\n};\n\n/**\n * Remove the given callback for `event` or all\n * registered callbacks.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.off =\nEmitter.prototype.removeListener =\nEmitter.prototype.removeAllListeners =\nEmitter.prototype.removeEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n\n  // all\n  if (0 == arguments.length) {\n    this._callbacks = {};\n    return this;\n  }\n\n  // specific event\n  var callbacks = this._callbacks['$' + event];\n  if (!callbacks) return this;\n\n  // remove all handlers\n  if (1 == arguments.length) {\n    delete this._callbacks['$' + event];\n    return this;\n  }\n\n  // remove specific handler\n  var cb;\n  for (var i = 0; i < callbacks.length; i++) {\n    cb = callbacks[i];\n    if (cb === fn || cb.fn === fn) {\n      callbacks.splice(i, 1);\n      break;\n    }\n  }\n\n  // Remove event specific arrays for event types that no\n  // one is subscribed for to avoid memory leak.\n  if (callbacks.length === 0) {\n    delete this._callbacks['$' + event];\n  }\n\n  return this;\n};\n\n/**\n * Emit `event` with the given args.\n *\n * @param {String} event\n * @param {Mixed} ...\n * @return {Emitter}\n */\n\nEmitter.prototype.emit = function(event){\n  this._callbacks = this._callbacks || {};\n\n  var args = new Array(arguments.length - 1)\n    , callbacks = this._callbacks['$' + event];\n\n  for (var i = 1; i < arguments.length; i++) {\n    args[i - 1] = arguments[i];\n  }\n\n  if (callbacks) {\n    callbacks = callbacks.slice(0);\n    for (var i = 0, len = callbacks.length; i < len; ++i) {\n      callbacks[i].apply(this, args);\n    }\n  }\n\n  return this;\n};\n\n// alias used for reserved events (protected method)\nEmitter.prototype.emitReserved = Emitter.prototype.emit;\n\n/**\n * Return array of callbacks for `event`.\n *\n * @param {String} event\n * @return {Array}\n * @api public\n */\n\nEmitter.prototype.listeners = function(event){\n  this._callbacks = this._callbacks || {};\n  return this._callbacks['$' + event] || [];\n};\n\n/**\n * Check if this emitter has `event` handlers.\n *\n * @param {String} event\n * @return {Boolean}\n * @api public\n */\n\nEmitter.prototype.hasListeners = function(event){\n  return !! this.listeners(event).length;\n};\n", "export const globalThisShim = (() => {\n    if (typeof self !== \"undefined\") {\n        return self;\n    }\n    else if (typeof window !== \"undefined\") {\n        return window;\n    }\n    else {\n        return Function(\"return this\")();\n    }\n})();\n", "import { globalThisShim as globalThis } from \"./globalThis.js\";\nexport function pick(obj, ...attr) {\n    return attr.reduce((acc, k) => {\n        if (obj.hasOwnProperty(k)) {\n            acc[k] = obj[k];\n        }\n        return acc;\n    }, {});\n}\n// Keep a reference to the real timeout functions so they can be used when overridden\nconst NATIVE_SET_TIMEOUT = globalThis.setTimeout;\nconst NATIVE_CLEAR_TIMEOUT = globalThis.clearTimeout;\nexport function installTimerFunctions(obj, opts) {\n    if (opts.useNativeTimers) {\n        obj.setTimeoutFn = NATIVE_SET_TIMEOUT.bind(globalThis);\n        obj.clearTimeoutFn = NATIVE_CLEAR_TIMEOUT.bind(globalThis);\n    }\n    else {\n        obj.setTimeoutFn = globalThis.setTimeout.bind(globalThis);\n        obj.clearTimeoutFn = globalThis.clearTimeout.bind(globalThis);\n    }\n}\n// base64 encoded buffers are about 33% bigger (https://en.wikipedia.org/wiki/Base64)\nconst BASE64_OVERHEAD = 1.33;\n// we could also have used `new Blob([obj]).size`, but it isn't supported in IE9\nexport function byteLength(obj) {\n    if (typeof obj === \"string\") {\n        return utf8Length(obj);\n    }\n    // arraybuffer or blob\n    return Math.ceil((obj.byteLength || obj.size) * BASE64_OVERHEAD);\n}\nfunction utf8Length(str) {\n    let c = 0, length = 0;\n    for (let i = 0, l = str.length; i < l; i++) {\n        c = str.charCodeAt(i);\n        if (c < 0x80) {\n            length += 1;\n        }\n        else if (c < 0x800) {\n            length += 2;\n        }\n        else if (c < 0xd800 || c >= 0xe000) {\n            length += 3;\n        }\n        else {\n            i++;\n            length += 4;\n        }\n    }\n    return length;\n}\n", "// imported from https://github.com/galkn/querystring\n/**\n * Compiles a querystring\n * Returns string representation of the object\n *\n * @param {Object}\n * @api private\n */\nexport function encode(obj) {\n    let str = '';\n    for (let i in obj) {\n        if (obj.hasOwnProperty(i)) {\n            if (str.length)\n                str += '&';\n            str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);\n        }\n    }\n    return str;\n}\n/**\n * Parses a simple querystring into an object\n *\n * @param {String} qs\n * @api private\n */\nexport function decode(qs) {\n    let qry = {};\n    let pairs = qs.split('&');\n    for (let i = 0, l = pairs.length; i < l; i++) {\n        let pair = pairs[i].split('=');\n        qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);\n    }\n    return qry;\n}\n", "import { decodePacket } from \"engine.io-parser\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions } from \"./util.js\";\nimport { encode } from \"./contrib/parseqs.js\";\nexport class TransportError extends Error {\n    constructor(reason, description, context) {\n        super(reason);\n        this.description = description;\n        this.context = context;\n        this.type = \"TransportError\";\n    }\n}\nexport class Transport extends Emitter {\n    /**\n     * Transport abstract constructor.\n     *\n     * @param {Object} opts - options\n     * @protected\n     */\n    constructor(opts) {\n        super();\n        this.writable = false;\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.query = opts.query;\n        this.socket = opts.socket;\n    }\n    /**\n     * Emits an error.\n     *\n     * @param {String} reason\n     * @param description\n     * @param context - the error context\n     * @return {Transport} for chaining\n     * @protected\n     */\n    onError(reason, description, context) {\n        super.emitReserved(\"error\", new TransportError(reason, description, context));\n        return this;\n    }\n    /**\n     * Opens the transport.\n     */\n    open() {\n        this.readyState = \"opening\";\n        this.doOpen();\n        return this;\n    }\n    /**\n     * Closes the transport.\n     */\n    close() {\n        if (this.readyState === \"opening\" || this.readyState === \"open\") {\n            this.doClose();\n            this.onClose();\n        }\n        return this;\n    }\n    /**\n     * Sends multiple packets.\n     *\n     * @param {Array} packets\n     */\n    send(packets) {\n        if (this.readyState === \"open\") {\n            this.write(packets);\n        }\n        else {\n            // this might happen if the transport was silently closed in the beforeunload event handler\n        }\n    }\n    /**\n     * Called upon open\n     *\n     * @protected\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        this.writable = true;\n        super.emitReserved(\"open\");\n    }\n    /**\n     * Called with data.\n     *\n     * @param {String} data\n     * @protected\n     */\n    onData(data) {\n        const packet = decodePacket(data, this.socket.binaryType);\n        this.onPacket(packet);\n    }\n    /**\n     * Called with a decoded packet.\n     *\n     * @protected\n     */\n    onPacket(packet) {\n        super.emitReserved(\"packet\", packet);\n    }\n    /**\n     * Called upon close.\n     *\n     * @protected\n     */\n    onClose(details) {\n        this.readyState = \"closed\";\n        super.emitReserved(\"close\", details);\n    }\n    /**\n     * Pauses the transport, in order not to lose packets during an upgrade.\n     *\n     * @param onPause\n     */\n    pause(onPause) { }\n    createUri(schema, query = {}) {\n        return (schema +\n            \"://\" +\n            this._hostname() +\n            this._port() +\n            this.opts.path +\n            this._query(query));\n    }\n    _hostname() {\n        const hostname = this.opts.hostname;\n        return hostname.indexOf(\":\") === -1 ? hostname : \"[\" + hostname + \"]\";\n    }\n    _port() {\n        if (this.opts.port &&\n            ((this.opts.secure && Number(this.opts.port !== 443)) ||\n                (!this.opts.secure && Number(this.opts.port) !== 80))) {\n            return \":\" + this.opts.port;\n        }\n        else {\n            return \"\";\n        }\n    }\n    _query(query) {\n        const encodedQuery = encode(query);\n        return encodedQuery.length ? \"?\" + encodedQuery : \"\";\n    }\n}\n", "// imported from https://github.com/unshiftio/yeast\n'use strict';\nconst alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split(''), length = 64, map = {};\nlet seed = 0, i = 0, prev;\n/**\n * Return a string representing the specified number.\n *\n * @param {Number} num The number to convert.\n * @returns {String} The string representation of the number.\n * @api public\n */\nexport function encode(num) {\n    let encoded = '';\n    do {\n        encoded = alphabet[num % length] + encoded;\n        num = Math.floor(num / length);\n    } while (num > 0);\n    return encoded;\n}\n/**\n * Return the integer value specified by the given string.\n *\n * @param {String} str The string to convert.\n * @returns {Number} The integer value represented by the string.\n * @api public\n */\nexport function decode(str) {\n    let decoded = 0;\n    for (i = 0; i < str.length; i++) {\n        decoded = decoded * length + map[str.charAt(i)];\n    }\n    return decoded;\n}\n/**\n * Yeast: A tiny growing id generator.\n *\n * @returns {String} A unique id.\n * @api public\n */\nexport function yeast() {\n    const now = encode(+new Date());\n    if (now !== prev)\n        return seed = 0, prev = now;\n    return now + '.' + encode(seed++);\n}\n//\n// Map each character to its index.\n//\nfor (; i < length; i++)\n    map[alphabet[i]] = i;\n", "// imported from https://github.com/component/has-cors\nlet value = false;\ntry {\n    value = typeof XMLHttpRequest !== 'undefined' &&\n        'withCredentials' in new XMLHttpRequest();\n}\ncatch (err) {\n    // if XMLHttp support is disabled in IE then it will throw\n    // when trying to create\n}\nexport const hasCORS = value;\n", "// browser shim for xmlhttprequest module\nimport { hasCORS } from \"../contrib/has-cors.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nexport function XHR(opts) {\n    const xdomain = opts.xdomain;\n    // XMLHttpRequest can be disabled on IE\n    try {\n        if (\"undefined\" !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {\n            return new XMLHttpRequest();\n        }\n    }\n    catch (e) { }\n    if (!xdomain) {\n        try {\n            return new globalThis[[\"Active\"].concat(\"Object\").join(\"X\")](\"Microsoft.XMLHTTP\");\n        }\n        catch (e) { }\n    }\n}\nexport function createCookieJar() { }\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { encodePayload, decodePayload } from \"engine.io-parser\";\nimport { createCookieJar, XHR as XMLHttpRequest, } from \"./xmlhttprequest.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions, pick } from \"../util.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nfunction empty() { }\nconst hasXHR2 = (function () {\n    const xhr = new XMLHttpRequest({\n        xdomain: false,\n    });\n    return null != xhr.responseType;\n})();\nexport class Polling extends Transport {\n    /**\n     * XHR Polling constructor.\n     *\n     * @param {Object} opts\n     * @package\n     */\n    constructor(opts) {\n        super(opts);\n        this.polling = false;\n        if (typeof location !== \"undefined\") {\n            const isSSL = \"https:\" === location.protocol;\n            let port = location.port;\n            // some user agents have empty `location.port`\n            if (!port) {\n                port = isSSL ? \"443\" : \"80\";\n            }\n            this.xd =\n                (typeof location !== \"undefined\" &&\n                    opts.hostname !== location.hostname) ||\n                    port !== opts.port;\n        }\n        /**\n         * XHR supports binary\n         */\n        const forceBase64 = opts && opts.forceBase64;\n        this.supportsBinary = hasXHR2 && !forceBase64;\n        if (this.opts.withCredentials) {\n            this.cookieJar = createCookieJar();\n        }\n    }\n    get name() {\n        return \"polling\";\n    }\n    /**\n     * Opens the socket (triggers polling). We write a PING message to determine\n     * when the transport is open.\n     *\n     * @protected\n     */\n    doOpen() {\n        this.poll();\n    }\n    /**\n     * Pauses polling.\n     *\n     * @param {Function} onPause - callback upon buffers are flushed and transport is paused\n     * @package\n     */\n    pause(onPause) {\n        this.readyState = \"pausing\";\n        const pause = () => {\n            this.readyState = \"paused\";\n            onPause();\n        };\n        if (this.polling || !this.writable) {\n            let total = 0;\n            if (this.polling) {\n                total++;\n                this.once(\"pollComplete\", function () {\n                    --total || pause();\n                });\n            }\n            if (!this.writable) {\n                total++;\n                this.once(\"drain\", function () {\n                    --total || pause();\n                });\n            }\n        }\n        else {\n            pause();\n        }\n    }\n    /**\n     * Starts polling cycle.\n     *\n     * @private\n     */\n    poll() {\n        this.polling = true;\n        this.doPoll();\n        this.emitReserved(\"poll\");\n    }\n    /**\n     * Overloads onData to detect payloads.\n     *\n     * @protected\n     */\n    onData(data) {\n        const callback = (packet) => {\n            // if its the first message we consider the transport open\n            if (\"opening\" === this.readyState && packet.type === \"open\") {\n                this.onOpen();\n            }\n            // if its a close packet, we close the ongoing requests\n            if (\"close\" === packet.type) {\n                this.onClose({ description: \"transport closed by the server\" });\n                return false;\n            }\n            // otherwise bypass onData and handle the message\n            this.onPacket(packet);\n        };\n        // decode payload\n        decodePayload(data, this.socket.binaryType).forEach(callback);\n        // if an event did not trigger closing\n        if (\"closed\" !== this.readyState) {\n            // if we got data we're not polling\n            this.polling = false;\n            this.emitReserved(\"pollComplete\");\n            if (\"open\" === this.readyState) {\n                this.poll();\n            }\n            else {\n            }\n        }\n    }\n    /**\n     * For polling, send a close packet.\n     *\n     * @protected\n     */\n    doClose() {\n        const close = () => {\n            this.write([{ type: \"close\" }]);\n        };\n        if (\"open\" === this.readyState) {\n            close();\n        }\n        else {\n            // in case we're trying to close while\n            // handshaking is in progress (GH-164)\n            this.once(\"open\", close);\n        }\n    }\n    /**\n     * Writes a packets payload.\n     *\n     * @param {Array} packets - data packets\n     * @protected\n     */\n    write(packets) {\n        this.writable = false;\n        encodePayload(packets, (data) => {\n            this.doWrite(data, () => {\n                this.writable = true;\n                this.emitReserved(\"drain\");\n            });\n        });\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"https\" : \"http\";\n        const query = this.query || {};\n        // cache busting is forced\n        if (false !== this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        if (!this.supportsBinary && !query.sid) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Creates a request.\n     *\n     * @param {String} method\n     * @private\n     */\n    request(opts = {}) {\n        Object.assign(opts, { xd: this.xd, cookieJar: this.cookieJar }, this.opts);\n        return new Request(this.uri(), opts);\n    }\n    /**\n     * Sends data.\n     *\n     * @param {String} data to send.\n     * @param {Function} called upon flush.\n     * @private\n     */\n    doWrite(data, fn) {\n        const req = this.request({\n            method: \"POST\",\n            data: data,\n        });\n        req.on(\"success\", fn);\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr post error\", xhrStatus, context);\n        });\n    }\n    /**\n     * Starts a poll cycle.\n     *\n     * @private\n     */\n    doPoll() {\n        const req = this.request();\n        req.on(\"data\", this.onData.bind(this));\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr poll error\", xhrStatus, context);\n        });\n        this.pollXhr = req;\n    }\n}\nexport class Request extends Emitter {\n    /**\n     * Request constructor\n     *\n     * @param {Object} options\n     * @package\n     */\n    constructor(uri, opts) {\n        super();\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.method = opts.method || \"GET\";\n        this.uri = uri;\n        this.data = undefined !== opts.data ? opts.data : null;\n        this.create();\n    }\n    /**\n     * Creates the XHR object and sends the request.\n     *\n     * @private\n     */\n    create() {\n        var _a;\n        const opts = pick(this.opts, \"agent\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"autoUnref\");\n        opts.xdomain = !!this.opts.xd;\n        const xhr = (this.xhr = new XMLHttpRequest(opts));\n        try {\n            xhr.open(this.method, this.uri, true);\n            try {\n                if (this.opts.extraHeaders) {\n                    xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);\n                    for (let i in this.opts.extraHeaders) {\n                        if (this.opts.extraHeaders.hasOwnProperty(i)) {\n                            xhr.setRequestHeader(i, this.opts.extraHeaders[i]);\n                        }\n                    }\n                }\n            }\n            catch (e) { }\n            if (\"POST\" === this.method) {\n                try {\n                    xhr.setRequestHeader(\"Content-type\", \"text/plain;charset=UTF-8\");\n                }\n                catch (e) { }\n            }\n            try {\n                xhr.setRequestHeader(\"Accept\", \"*/*\");\n            }\n            catch (e) { }\n            (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.addCookies(xhr);\n            // ie6 check\n            if (\"withCredentials\" in xhr) {\n                xhr.withCredentials = this.opts.withCredentials;\n            }\n            if (this.opts.requestTimeout) {\n                xhr.timeout = this.opts.requestTimeout;\n            }\n            xhr.onreadystatechange = () => {\n                var _a;\n                if (xhr.readyState === 3) {\n                    (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.parseCookies(xhr);\n                }\n                if (4 !== xhr.readyState)\n                    return;\n                if (200 === xhr.status || 1223 === xhr.status) {\n                    this.onLoad();\n                }\n                else {\n                    // make sure the `error` event handler that's user-set\n                    // does not throw in the same tick and gets caught here\n                    this.setTimeoutFn(() => {\n                        this.onError(typeof xhr.status === \"number\" ? xhr.status : 0);\n                    }, 0);\n                }\n            };\n            xhr.send(this.data);\n        }\n        catch (e) {\n            // Need to defer since .create() is called directly from the constructor\n            // and thus the 'error' event can only be only bound *after* this exception\n            // occurs.  Therefore, also, we cannot throw here at all.\n            this.setTimeoutFn(() => {\n                this.onError(e);\n            }, 0);\n            return;\n        }\n        if (typeof document !== \"undefined\") {\n            this.index = Request.requestsCount++;\n            Request.requests[this.index] = this;\n        }\n    }\n    /**\n     * Called upon error.\n     *\n     * @private\n     */\n    onError(err) {\n        this.emitReserved(\"error\", err, this.xhr);\n        this.cleanup(true);\n    }\n    /**\n     * Cleans up house.\n     *\n     * @private\n     */\n    cleanup(fromError) {\n        if (\"undefined\" === typeof this.xhr || null === this.xhr) {\n            return;\n        }\n        this.xhr.onreadystatechange = empty;\n        if (fromError) {\n            try {\n                this.xhr.abort();\n            }\n            catch (e) { }\n        }\n        if (typeof document !== \"undefined\") {\n            delete Request.requests[this.index];\n        }\n        this.xhr = null;\n    }\n    /**\n     * Called upon load.\n     *\n     * @private\n     */\n    onLoad() {\n        const data = this.xhr.responseText;\n        if (data !== null) {\n            this.emitReserved(\"data\", data);\n            this.emitReserved(\"success\");\n            this.cleanup();\n        }\n    }\n    /**\n     * Aborts the request.\n     *\n     * @package\n     */\n    abort() {\n        this.cleanup();\n    }\n}\nRequest.requestsCount = 0;\nRequest.requests = {};\n/**\n * Aborts pending requests when unloading the window. This is needed to prevent\n * memory leaks (e.g. when using IE) and to ensure that no spurious error is\n * emitted.\n */\nif (typeof document !== \"undefined\") {\n    // @ts-ignore\n    if (typeof attachEvent === \"function\") {\n        // @ts-ignore\n        attachEvent(\"onunload\", unloadHandler);\n    }\n    else if (typeof addEventListener === \"function\") {\n        const terminationEvent = \"onpagehide\" in globalThis ? \"pagehide\" : \"unload\";\n        addEventListener(terminationEvent, unloadHandler, false);\n    }\n}\nfunction unloadHandler() {\n    for (let i in Request.requests) {\n        if (Request.requests.hasOwnProperty(i)) {\n            Request.requests[i].abort();\n        }\n    }\n}\n", "import { globalThisShim as globalThis } from \"../globalThis.js\";\nexport const nextTick = (() => {\n    const isPromiseAvailable = typeof Promise === \"function\" && typeof Promise.resolve === \"function\";\n    if (isPromiseAvailable) {\n        return (cb) => Promise.resolve().then(cb);\n    }\n    else {\n        return (cb, setTimeoutFn) => setTimeoutFn(cb, 0);\n    }\n})();\nexport const WebSocket = globalThis.WebSocket || globalThis.MozWebSocket;\nexport const usingBrowserWebSocket = true;\nexport const defaultBinaryType = \"arraybuffer\";\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { pick } from \"../util.js\";\nimport { nextTick, usingBrowserWebSocket, WebSocket, } from \"./websocket-constructor.js\";\nimport { encodePacket } from \"engine.io-parser\";\n// detect ReactNative environment\nconst isReactNative = typeof navigator !== \"undefined\" &&\n    typeof navigator.product === \"string\" &&\n    navigator.product.toLowerCase() === \"reactnative\";\nexport class WS extends Transport {\n    /**\n     * WebSocket transport constructor.\n     *\n     * @param {Object} opts - connection options\n     * @protected\n     */\n    constructor(opts) {\n        super(opts);\n        this.supportsBinary = !opts.forceBase64;\n    }\n    get name() {\n        return \"websocket\";\n    }\n    doOpen() {\n        if (!this.check()) {\n            // let probe timeout\n            return;\n        }\n        const uri = this.uri();\n        const protocols = this.opts.protocols;\n        // React Native only supports the 'headers' option, and will print a warning if anything else is passed\n        const opts = isReactNative\n            ? {}\n            : pick(this.opts, \"agent\", \"perMessageDeflate\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"localAddress\", \"protocolVersion\", \"origin\", \"maxPayload\", \"family\", \"checkServerIdentity\");\n        if (this.opts.extraHeaders) {\n            opts.headers = this.opts.extraHeaders;\n        }\n        try {\n            this.ws =\n                usingBrowserWebSocket && !isReactNative\n                    ? protocols\n                        ? new WebSocket(uri, protocols)\n                        : new WebSocket(uri)\n                    : new WebSocket(uri, protocols, opts);\n        }\n        catch (err) {\n            return this.emitReserved(\"error\", err);\n        }\n        this.ws.binaryType = this.socket.binaryType;\n        this.addEventListeners();\n    }\n    /**\n     * Adds event listeners to the socket\n     *\n     * @private\n     */\n    addEventListeners() {\n        this.ws.onopen = () => {\n            if (this.opts.autoUnref) {\n                this.ws._socket.unref();\n            }\n            this.onOpen();\n        };\n        this.ws.onclose = (closeEvent) => this.onClose({\n            description: \"websocket connection closed\",\n            context: closeEvent,\n        });\n        this.ws.onmessage = (ev) => this.onData(ev.data);\n        this.ws.onerror = (e) => this.onError(\"websocket error\", e);\n    }\n    write(packets) {\n        this.writable = false;\n        // encodePacket efficient as it uses WS framing\n        // no need for encodePayload\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            encodePacket(packet, this.supportsBinary, (data) => {\n                // always create a new object (GH-437)\n                const opts = {};\n                if (!usingBrowserWebSocket) {\n                    if (packet.options) {\n                        opts.compress = packet.options.compress;\n                    }\n                    if (this.opts.perMessageDeflate) {\n                        const len = \n                        // @ts-ignore\n                        \"string\" === typeof data ? Buffer.byteLength(data) : data.length;\n                        if (len < this.opts.perMessageDeflate.threshold) {\n                            opts.compress = false;\n                        }\n                    }\n                }\n                // Sometimes the websocket has already been closed but the browser didn't\n                // have a chance of informing us about it yet, in that case send will\n                // throw an error\n                try {\n                    if (usingBrowserWebSocket) {\n                        // TypeError is thrown when passing the second argument on Safari\n                        this.ws.send(data);\n                    }\n                    else {\n                        this.ws.send(data, opts);\n                    }\n                }\n                catch (e) {\n                }\n                if (lastPacket) {\n                    // fake drain\n                    // defer to next tick to allow Socket to clear writeBuffer\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        if (typeof this.ws !== \"undefined\") {\n            this.ws.close();\n            this.ws = null;\n        }\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"wss\" : \"ws\";\n        const query = this.query || {};\n        // append timestamp to URI\n        if (this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        // communicate binary support capabilities\n        if (!this.supportsBinary) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Feature detection for WebSocket.\n     *\n     * @return {Boolean} whether this transport is available.\n     * @private\n     */\n    check() {\n        return !!WebSocket;\n    }\n}\n", "import { Transport } from \"../transport.js\";\nimport { nextTick } from \"./websocket-constructor.js\";\nimport { createPacketDecoderStream, createPacketEncoderStream, } from \"engine.io-parser\";\nexport class WT extends Transport {\n    get name() {\n        return \"webtransport\";\n    }\n    doOpen() {\n        // @ts-ignore\n        if (typeof WebTransport !== \"function\") {\n            return;\n        }\n        // @ts-ignore\n        this.transport = new WebTransport(this.createUri(\"https\"), this.opts.transportOptions[this.name]);\n        this.transport.closed\n            .then(() => {\n            this.onClose();\n        })\n            .catch((err) => {\n            this.onError(\"webtransport error\", err);\n        });\n        // note: we could have used async/await, but that would require some additional polyfills\n        this.transport.ready.then(() => {\n            this.transport.createBidirectionalStream().then((stream) => {\n                const decoderStream = createPacketDecoderStream(Number.MAX_SAFE_INTEGER, this.socket.binaryType);\n                const reader = stream.readable.pipeThrough(decoderStream).getReader();\n                const encoderStream = createPacketEncoderStream();\n                encoderStream.readable.pipeTo(stream.writable);\n                this.writer = encoderStream.writable.getWriter();\n                const read = () => {\n                    reader\n                        .read()\n                        .then(({ done, value }) => {\n                        if (done) {\n                            return;\n                        }\n                        this.onPacket(value);\n                        read();\n                    })\n                        .catch((err) => {\n                    });\n                };\n                read();\n                const packet = { type: \"open\" };\n                if (this.query.sid) {\n                    packet.data = `{\"sid\":\"${this.query.sid}\"}`;\n                }\n                this.writer.write(packet).then(() => this.onOpen());\n            });\n        });\n    }\n    write(packets) {\n        this.writable = false;\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            this.writer.write(packet).then(() => {\n                if (lastPacket) {\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        var _a;\n        (_a = this.transport) === null || _a === void 0 ? void 0 : _a.close();\n    }\n}\n", "import { Polling } from \"./polling.js\";\nimport { WS } from \"./websocket.js\";\nimport { WT } from \"./webtransport.js\";\nexport const transports = {\n    websocket: WS,\n    webtransport: WT,\n    polling: Polling,\n};\n", "// imported from https://github.com/galkn/parseuri\n/**\n * Parses a URI\n *\n * Note: we could also have used the built-in URL object, but it isn't supported on all platforms.\n *\n * See:\n * - https://developer.mozilla.org/en-US/docs/Web/API/URL\n * - https://caniuse.com/url\n * - https://www.rfc-editor.org/rfc/rfc3986#appendix-B\n *\n * History of the parse() method:\n * - first commit: https://github.com/socketio/socket.io-client/commit/4ee1d5d94b3906a9c052b459f1a818b15f38f91c\n * - export into its own module: https://github.com/socketio/engine.io-client/commit/de2c561e4564efeb78f1bdb1ba39ef81b2822cb3\n * - reimport: https://github.com/socketio/engine.io-client/commit/df32277c3f6d622eec5ed09f493cae3f3391d242\n *\n * @author Steven Levithan <stevenlevithan.com> (MIT license)\n * @api private\n */\nconst re = /^(?:(?![^:@\\/?#]+:[^:@\\/]*@)(http|https|ws|wss):\\/\\/)?((?:(([^:@\\/?#]*)(?::([^:@\\/?#]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\\/?#]*)(?::(\\d*))?)(((\\/(?:[^?#](?![^?#\\/]*\\.[^?#\\/.]+(?:[?#]|$)))*\\/?)?([^?#\\/]*))(?:\\?([^#]*))?(?:#(.*))?)/;\nconst parts = [\n    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'\n];\nexport function parse(str) {\n    if (str.length > 2000) {\n        throw \"URI too long\";\n    }\n    const src = str, b = str.indexOf('['), e = str.indexOf(']');\n    if (b != -1 && e != -1) {\n        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);\n    }\n    let m = re.exec(str || ''), uri = {}, i = 14;\n    while (i--) {\n        uri[parts[i]] = m[i] || '';\n    }\n    if (b != -1 && e != -1) {\n        uri.source = src;\n        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');\n        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');\n        uri.ipv6uri = true;\n    }\n    uri.pathNames = pathNames(uri, uri['path']);\n    uri.queryKey = queryKey(uri, uri['query']);\n    return uri;\n}\nfunction pathNames(obj, path) {\n    const regx = /\\/{2,9}/g, names = path.replace(regx, \"/\").split(\"/\");\n    if (path.slice(0, 1) == '/' || path.length === 0) {\n        names.splice(0, 1);\n    }\n    if (path.slice(-1) == '/') {\n        names.splice(names.length - 1, 1);\n    }\n    return names;\n}\nfunction queryKey(uri, query) {\n    const data = {};\n    query.replace(/(?:^|&)([^&=]*)=?([^&]*)/g, function ($0, $1, $2) {\n        if ($1) {\n            data[$1] = $2;\n        }\n    });\n    return data;\n}\n", "import { transports } from \"./transports/index.js\";\nimport { installTimerFunctions, byteLength } from \"./util.js\";\nimport { decode } from \"./contrib/parseqs.js\";\nimport { parse } from \"./contrib/parseuri.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { protocol } from \"engine.io-parser\";\nimport { defaultBinaryType } from \"./transports/websocket-constructor.js\";\nexport class Socket extends Emitter {\n    /**\n     * Socket constructor.\n     *\n     * @param {String|Object} uri - uri or options\n     * @param {Object} opts - options\n     */\n    constructor(uri, opts = {}) {\n        super();\n        this.binaryType = defaultBinaryType;\n        this.writeBuffer = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = null;\n        }\n        if (uri) {\n            uri = parse(uri);\n            opts.hostname = uri.host;\n            opts.secure = uri.protocol === \"https\" || uri.protocol === \"wss\";\n            opts.port = uri.port;\n            if (uri.query)\n                opts.query = uri.query;\n        }\n        else if (opts.host) {\n            opts.hostname = parse(opts.host).host;\n        }\n        installTimerFunctions(this, opts);\n        this.secure =\n            null != opts.secure\n                ? opts.secure\n                : typeof location !== \"undefined\" && \"https:\" === location.protocol;\n        if (opts.hostname && !opts.port) {\n            // if no port is specified manually, use the protocol default\n            opts.port = this.secure ? \"443\" : \"80\";\n        }\n        this.hostname =\n            opts.hostname ||\n                (typeof location !== \"undefined\" ? location.hostname : \"localhost\");\n        this.port =\n            opts.port ||\n                (typeof location !== \"undefined\" && location.port\n                    ? location.port\n                    : this.secure\n                        ? \"443\"\n                        : \"80\");\n        this.transports = opts.transports || [\n            \"polling\",\n            \"websocket\",\n            \"webtransport\",\n        ];\n        this.writeBuffer = [];\n        this.prevBufferLen = 0;\n        this.opts = Object.assign({\n            path: \"/engine.io\",\n            agent: false,\n            withCredentials: false,\n            upgrade: true,\n            timestampParam: \"t\",\n            rememberUpgrade: false,\n            addTrailingSlash: true,\n            rejectUnauthorized: true,\n            perMessageDeflate: {\n                threshold: 1024,\n            },\n            transportOptions: {},\n            closeOnBeforeunload: false,\n        }, opts);\n        this.opts.path =\n            this.opts.path.replace(/\\/$/, \"\") +\n                (this.opts.addTrailingSlash ? \"/\" : \"\");\n        if (typeof this.opts.query === \"string\") {\n            this.opts.query = decode(this.opts.query);\n        }\n        // set on handshake\n        this.id = null;\n        this.upgrades = null;\n        this.pingInterval = null;\n        this.pingTimeout = null;\n        // set on heartbeat\n        this.pingTimeoutTimer = null;\n        if (typeof addEventListener === \"function\") {\n            if (this.opts.closeOnBeforeunload) {\n                // Firefox closes the connection when the \"beforeunload\" event is emitted but not Chrome. This event listener\n                // ensures every browser behaves the same (no \"disconnect\" event at the Socket.IO level when the page is\n                // closed/reloaded)\n                this.beforeunloadEventListener = () => {\n                    if (this.transport) {\n                        // silently close the transport\n                        this.transport.removeAllListeners();\n                        this.transport.close();\n                    }\n                };\n                addEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n            }\n            if (this.hostname !== \"localhost\") {\n                this.offlineEventListener = () => {\n                    this.onClose(\"transport close\", {\n                        description: \"network connection lost\",\n                    });\n                };\n                addEventListener(\"offline\", this.offlineEventListener, false);\n            }\n        }\n        this.open();\n    }\n    /**\n     * Creates transport of the given type.\n     *\n     * @param {String} name - transport name\n     * @return {Transport}\n     * @private\n     */\n    createTransport(name) {\n        const query = Object.assign({}, this.opts.query);\n        // append engine.io protocol identifier\n        query.EIO = protocol;\n        // transport name\n        query.transport = name;\n        // session id if we already have one\n        if (this.id)\n            query.sid = this.id;\n        const opts = Object.assign({}, this.opts, {\n            query,\n            socket: this,\n            hostname: this.hostname,\n            secure: this.secure,\n            port: this.port,\n        }, this.opts.transportOptions[name]);\n        return new transports[name](opts);\n    }\n    /**\n     * Initializes transport to use and starts probe.\n     *\n     * @private\n     */\n    open() {\n        let transport;\n        if (this.opts.rememberUpgrade &&\n            Socket.priorWebsocketSuccess &&\n            this.transports.indexOf(\"websocket\") !== -1) {\n            transport = \"websocket\";\n        }\n        else if (0 === this.transports.length) {\n            // Emit error on next tick so it can be listened to\n            this.setTimeoutFn(() => {\n                this.emitReserved(\"error\", \"No transports available\");\n            }, 0);\n            return;\n        }\n        else {\n            transport = this.transports[0];\n        }\n        this.readyState = \"opening\";\n        // Retry with the next transport if the transport is disabled (jsonp: false)\n        try {\n            transport = this.createTransport(transport);\n        }\n        catch (e) {\n            this.transports.shift();\n            this.open();\n            return;\n        }\n        transport.open();\n        this.setTransport(transport);\n    }\n    /**\n     * Sets the current transport. Disables the existing one (if any).\n     *\n     * @private\n     */\n    setTransport(transport) {\n        if (this.transport) {\n            this.transport.removeAllListeners();\n        }\n        // set up transport\n        this.transport = transport;\n        // set up transport listeners\n        transport\n            .on(\"drain\", this.onDrain.bind(this))\n            .on(\"packet\", this.onPacket.bind(this))\n            .on(\"error\", this.onError.bind(this))\n            .on(\"close\", (reason) => this.onClose(\"transport close\", reason));\n    }\n    /**\n     * Probes a transport.\n     *\n     * @param {String} name - transport name\n     * @private\n     */\n    probe(name) {\n        let transport = this.createTransport(name);\n        let failed = false;\n        Socket.priorWebsocketSuccess = false;\n        const onTransportOpen = () => {\n            if (failed)\n                return;\n            transport.send([{ type: \"ping\", data: \"probe\" }]);\n            transport.once(\"packet\", (msg) => {\n                if (failed)\n                    return;\n                if (\"pong\" === msg.type && \"probe\" === msg.data) {\n                    this.upgrading = true;\n                    this.emitReserved(\"upgrading\", transport);\n                    if (!transport)\n                        return;\n                    Socket.priorWebsocketSuccess = \"websocket\" === transport.name;\n                    this.transport.pause(() => {\n                        if (failed)\n                            return;\n                        if (\"closed\" === this.readyState)\n                            return;\n                        cleanup();\n                        this.setTransport(transport);\n                        transport.send([{ type: \"upgrade\" }]);\n                        this.emitReserved(\"upgrade\", transport);\n                        transport = null;\n                        this.upgrading = false;\n                        this.flush();\n                    });\n                }\n                else {\n                    const err = new Error(\"probe error\");\n                    // @ts-ignore\n                    err.transport = transport.name;\n                    this.emitReserved(\"upgradeError\", err);\n                }\n            });\n        };\n        function freezeTransport() {\n            if (failed)\n                return;\n            // Any callback called by transport should be ignored since now\n            failed = true;\n            cleanup();\n            transport.close();\n            transport = null;\n        }\n        // Handle any error that happens while probing\n        const onerror = (err) => {\n            const error = new Error(\"probe error: \" + err);\n            // @ts-ignore\n            error.transport = transport.name;\n            freezeTransport();\n            this.emitReserved(\"upgradeError\", error);\n        };\n        function onTransportClose() {\n            onerror(\"transport closed\");\n        }\n        // When the socket is closed while we're probing\n        function onclose() {\n            onerror(\"socket closed\");\n        }\n        // When the socket is upgraded while we're probing\n        function onupgrade(to) {\n            if (transport && to.name !== transport.name) {\n                freezeTransport();\n            }\n        }\n        // Remove all listeners on the transport and on self\n        const cleanup = () => {\n            transport.removeListener(\"open\", onTransportOpen);\n            transport.removeListener(\"error\", onerror);\n            transport.removeListener(\"close\", onTransportClose);\n            this.off(\"close\", onclose);\n            this.off(\"upgrading\", onupgrade);\n        };\n        transport.once(\"open\", onTransportOpen);\n        transport.once(\"error\", onerror);\n        transport.once(\"close\", onTransportClose);\n        this.once(\"close\", onclose);\n        this.once(\"upgrading\", onupgrade);\n        if (this.upgrades.indexOf(\"webtransport\") !== -1 &&\n            name !== \"webtransport\") {\n            // favor WebTransport\n            this.setTimeoutFn(() => {\n                if (!failed) {\n                    transport.open();\n                }\n            }, 200);\n        }\n        else {\n            transport.open();\n        }\n    }\n    /**\n     * Called when connection is deemed open.\n     *\n     * @private\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        Socket.priorWebsocketSuccess = \"websocket\" === this.transport.name;\n        this.emitReserved(\"open\");\n        this.flush();\n        // we check for `readyState` in case an `open`\n        // listener already closed the socket\n        if (\"open\" === this.readyState && this.opts.upgrade) {\n            let i = 0;\n            const l = this.upgrades.length;\n            for (; i < l; i++) {\n                this.probe(this.upgrades[i]);\n            }\n        }\n    }\n    /**\n     * Handles a packet.\n     *\n     * @private\n     */\n    onPacket(packet) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            this.emitReserved(\"packet\", packet);\n            // Socket is live - any packet counts\n            this.emitReserved(\"heartbeat\");\n            this.resetPingTimeout();\n            switch (packet.type) {\n                case \"open\":\n                    this.onHandshake(JSON.parse(packet.data));\n                    break;\n                case \"ping\":\n                    this.sendPacket(\"pong\");\n                    this.emitReserved(\"ping\");\n                    this.emitReserved(\"pong\");\n                    break;\n                case \"error\":\n                    const err = new Error(\"server error\");\n                    // @ts-ignore\n                    err.code = packet.data;\n                    this.onError(err);\n                    break;\n                case \"message\":\n                    this.emitReserved(\"data\", packet.data);\n                    this.emitReserved(\"message\", packet.data);\n                    break;\n            }\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon handshake completion.\n     *\n     * @param {Object} data - handshake obj\n     * @private\n     */\n    onHandshake(data) {\n        this.emitReserved(\"handshake\", data);\n        this.id = data.sid;\n        this.transport.query.sid = data.sid;\n        this.upgrades = this.filterUpgrades(data.upgrades);\n        this.pingInterval = data.pingInterval;\n        this.pingTimeout = data.pingTimeout;\n        this.maxPayload = data.maxPayload;\n        this.onOpen();\n        // In case open handler closes socket\n        if (\"closed\" === this.readyState)\n            return;\n        this.resetPingTimeout();\n    }\n    /**\n     * Sets and resets ping timeout timer based on server pings.\n     *\n     * @private\n     */\n    resetPingTimeout() {\n        this.clearTimeoutFn(this.pingTimeoutTimer);\n        this.pingTimeoutTimer = this.setTimeoutFn(() => {\n            this.onClose(\"ping timeout\");\n        }, this.pingInterval + this.pingTimeout);\n        if (this.opts.autoUnref) {\n            this.pingTimeoutTimer.unref();\n        }\n    }\n    /**\n     * Called on `drain` event\n     *\n     * @private\n     */\n    onDrain() {\n        this.writeBuffer.splice(0, this.prevBufferLen);\n        // setting prevBufferLen = 0 is very important\n        // for example, when upgrading, upgrade packet is sent over,\n        // and a nonzero prevBufferLen could cause problems on `drain`\n        this.prevBufferLen = 0;\n        if (0 === this.writeBuffer.length) {\n            this.emitReserved(\"drain\");\n        }\n        else {\n            this.flush();\n        }\n    }\n    /**\n     * Flush write buffers.\n     *\n     * @private\n     */\n    flush() {\n        if (\"closed\" !== this.readyState &&\n            this.transport.writable &&\n            !this.upgrading &&\n            this.writeBuffer.length) {\n            const packets = this.getWritablePackets();\n            this.transport.send(packets);\n            // keep track of current length of writeBuffer\n            // splice writeBuffer and callbackBuffer on `drain`\n            this.prevBufferLen = packets.length;\n            this.emitReserved(\"flush\");\n        }\n    }\n    /**\n     * Ensure the encoded size of the writeBuffer is below the maxPayload value sent by the server (only for HTTP\n     * long-polling)\n     *\n     * @private\n     */\n    getWritablePackets() {\n        const shouldCheckPayloadSize = this.maxPayload &&\n            this.transport.name === \"polling\" &&\n            this.writeBuffer.length > 1;\n        if (!shouldCheckPayloadSize) {\n            return this.writeBuffer;\n        }\n        let payloadSize = 1; // first packet type\n        for (let i = 0; i < this.writeBuffer.length; i++) {\n            const data = this.writeBuffer[i].data;\n            if (data) {\n                payloadSize += byteLength(data);\n            }\n            if (i > 0 && payloadSize > this.maxPayload) {\n                return this.writeBuffer.slice(0, i);\n            }\n            payloadSize += 2; // separator + packet type\n        }\n        return this.writeBuffer;\n    }\n    /**\n     * Sends a message.\n     *\n     * @param {String} msg - message.\n     * @param {Object} options.\n     * @param {Function} callback function.\n     * @return {Socket} for chaining.\n     */\n    write(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    send(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param {String} type: packet type.\n     * @param {String} data.\n     * @param {Object} options.\n     * @param {Function} fn - callback function.\n     * @private\n     */\n    sendPacket(type, data, options, fn) {\n        if (\"function\" === typeof data) {\n            fn = data;\n            data = undefined;\n        }\n        if (\"function\" === typeof options) {\n            fn = options;\n            options = null;\n        }\n        if (\"closing\" === this.readyState || \"closed\" === this.readyState) {\n            return;\n        }\n        options = options || {};\n        options.compress = false !== options.compress;\n        const packet = {\n            type: type,\n            data: data,\n            options: options,\n        };\n        this.emitReserved(\"packetCreate\", packet);\n        this.writeBuffer.push(packet);\n        if (fn)\n            this.once(\"flush\", fn);\n        this.flush();\n    }\n    /**\n     * Closes the connection.\n     */\n    close() {\n        const close = () => {\n            this.onClose(\"forced close\");\n            this.transport.close();\n        };\n        const cleanupAndClose = () => {\n            this.off(\"upgrade\", cleanupAndClose);\n            this.off(\"upgradeError\", cleanupAndClose);\n            close();\n        };\n        const waitForUpgrade = () => {\n            // wait for upgrade to finish since we can't send packets while pausing a transport\n            this.once(\"upgrade\", cleanupAndClose);\n            this.once(\"upgradeError\", cleanupAndClose);\n        };\n        if (\"opening\" === this.readyState || \"open\" === this.readyState) {\n            this.readyState = \"closing\";\n            if (this.writeBuffer.length) {\n                this.once(\"drain\", () => {\n                    if (this.upgrading) {\n                        waitForUpgrade();\n                    }\n                    else {\n                        close();\n                    }\n                });\n            }\n            else if (this.upgrading) {\n                waitForUpgrade();\n            }\n            else {\n                close();\n            }\n        }\n        return this;\n    }\n    /**\n     * Called upon transport error\n     *\n     * @private\n     */\n    onError(err) {\n        Socket.priorWebsocketSuccess = false;\n        this.emitReserved(\"error\", err);\n        this.onClose(\"transport error\", err);\n    }\n    /**\n     * Called upon transport close.\n     *\n     * @private\n     */\n    onClose(reason, description) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            // clear timers\n            this.clearTimeoutFn(this.pingTimeoutTimer);\n            // stop event from firing again for transport\n            this.transport.removeAllListeners(\"close\");\n            // ensure transport won't stay open\n            this.transport.close();\n            // ignore further transport communication\n            this.transport.removeAllListeners();\n            if (typeof removeEventListener === \"function\") {\n                removeEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n                removeEventListener(\"offline\", this.offlineEventListener, false);\n            }\n            // set ready state\n            this.readyState = \"closed\";\n            // clear session id\n            this.id = null;\n            // emit close event\n            this.emitReserved(\"close\", reason, description);\n            // clean buffers after, so users can still\n            // grab the buffers on `close` event\n            this.writeBuffer = [];\n            this.prevBufferLen = 0;\n        }\n    }\n    /**\n     * Filters upgrades, returning only those matching client transports.\n     *\n     * @param {Array} upgrades - server upgrades\n     * @private\n     */\n    filterUpgrades(upgrades) {\n        const filteredUpgrades = [];\n        let i = 0;\n        const j = upgrades.length;\n        for (; i < j; i++) {\n            if (~this.transports.indexOf(upgrades[i]))\n                filteredUpgrades.push(upgrades[i]);\n        }\n        return filteredUpgrades;\n    }\n}\nSocket.protocol = protocol;\n", "import { Socket } from \"./socket.js\";\nexport { Socket };\nexport const protocol = Socket.protocol;\nexport { Transport, TransportError } from \"./transport.js\";\nexport { transports } from \"./transports/index.js\";\nexport { installTimerFunctions } from \"./util.js\";\nexport { parse } from \"./contrib/parseuri.js\";\nexport { nextTick } from \"./transports/websocket-constructor.js\";\n", "import { parse } from \"engine.io-client\";\n/**\n * URL parser.\n *\n * @param uri - url\n * @param path - the request path of the connection\n * @param loc - An object meant to mimic window.location.\n *        Defaults to window.location.\n * @public\n */\nexport function url(uri, path = \"\", loc) {\n    let obj = uri;\n    // default to window.location\n    loc = loc || (typeof location !== \"undefined\" && location);\n    if (null == uri)\n        uri = loc.protocol + \"//\" + loc.host;\n    // relative path support\n    if (typeof uri === \"string\") {\n        if (\"/\" === uri.charAt(0)) {\n            if (\"/\" === uri.charAt(1)) {\n                uri = loc.protocol + uri;\n            }\n            else {\n                uri = loc.host + uri;\n            }\n        }\n        if (!/^(https?|wss?):\\/\\//.test(uri)) {\n            if (\"undefined\" !== typeof loc) {\n                uri = loc.protocol + \"//\" + uri;\n            }\n            else {\n                uri = \"https://\" + uri;\n            }\n        }\n        // parse\n        obj = parse(uri);\n    }\n    // make sure we treat `localhost:80` and `localhost` equally\n    if (!obj.port) {\n        if (/^(http|ws)$/.test(obj.protocol)) {\n            obj.port = \"80\";\n        }\n        else if (/^(http|ws)s$/.test(obj.protocol)) {\n            obj.port = \"443\";\n        }\n    }\n    obj.path = obj.path || \"/\";\n    const ipv6 = obj.host.indexOf(\":\") !== -1;\n    const host = ipv6 ? \"[\" + obj.host + \"]\" : obj.host;\n    // define unique id\n    obj.id = obj.protocol + \"://\" + host + \":\" + obj.port + path;\n    // define href\n    obj.href =\n        obj.protocol +\n            \"://\" +\n            host +\n            (loc && loc.port === obj.port ? \"\" : \":\" + obj.port);\n    return obj;\n}\n", "import { Emitter } from \"@socket.io/component-emitter\";\nimport { deconstructPacket, reconstructPacket } from \"./binary.js\";\nimport { isBinary, hasBinary } from \"./is-binary.js\";\n/**\n * These strings must not be used as event names, as they have a special meaning.\n */\nconst RESERVED_EVENTS = [\n    \"connect\",\n    \"connect_error\",\n    \"disconnect\",\n    \"disconnecting\",\n    \"newListener\",\n    \"removeListener\", // used by the Node.js EventEmitter\n];\n/**\n * Protocol version.\n *\n * @public\n */\nexport const protocol = 5;\nexport var PacketType;\n(function (PacketType) {\n    PacketType[PacketType[\"CONNECT\"] = 0] = \"CONNECT\";\n    PacketType[PacketType[\"DISCONNECT\"] = 1] = \"DISCONNECT\";\n    PacketType[PacketType[\"EVENT\"] = 2] = \"EVENT\";\n    PacketType[PacketType[\"ACK\"] = 3] = \"ACK\";\n    PacketType[PacketType[\"CONNECT_ERROR\"] = 4] = \"CONNECT_ERROR\";\n    PacketType[PacketType[\"BINARY_EVENT\"] = 5] = \"BINARY_EVENT\";\n    PacketType[PacketType[\"BINARY_ACK\"] = 6] = \"BINARY_ACK\";\n})(PacketType || (PacketType = {}));\n/**\n * A socket.io Encoder instance\n */\nexport class Encoder {\n    /**\n     * Encoder constructor\n     *\n     * @param {function} replacer - custom replacer to pass down to JSON.parse\n     */\n    constructor(replacer) {\n        this.replacer = replacer;\n    }\n    /**\n     * Encode a packet as a single string if non-binary, or as a\n     * buffer sequence, depending on packet type.\n     *\n     * @param {Object} obj - packet object\n     */\n    encode(obj) {\n        if (obj.type === PacketType.EVENT || obj.type === PacketType.ACK) {\n            if (hasBinary(obj)) {\n                return this.encodeAsBinary({\n                    type: obj.type === PacketType.EVENT\n                        ? PacketType.BINARY_EVENT\n                        : PacketType.BINARY_ACK,\n                    nsp: obj.nsp,\n                    data: obj.data,\n                    id: obj.id,\n                });\n            }\n        }\n        return [this.encodeAsString(obj)];\n    }\n    /**\n     * Encode packet as string.\n     */\n    encodeAsString(obj) {\n        // first is type\n        let str = \"\" + obj.type;\n        // attachments if we have them\n        if (obj.type === PacketType.BINARY_EVENT ||\n            obj.type === PacketType.BINARY_ACK) {\n            str += obj.attachments + \"-\";\n        }\n        // if we have a namespace other than `/`\n        // we append it followed by a comma `,`\n        if (obj.nsp && \"/\" !== obj.nsp) {\n            str += obj.nsp + \",\";\n        }\n        // immediately followed by the id\n        if (null != obj.id) {\n            str += obj.id;\n        }\n        // json data\n        if (null != obj.data) {\n            str += JSON.stringify(obj.data, this.replacer);\n        }\n        return str;\n    }\n    /**\n     * Encode packet as 'buffer sequence' by removing blobs, and\n     * deconstructing packet into object with placeholders and\n     * a list of buffers.\n     */\n    encodeAsBinary(obj) {\n        const deconstruction = deconstructPacket(obj);\n        const pack = this.encodeAsString(deconstruction.packet);\n        const buffers = deconstruction.buffers;\n        buffers.unshift(pack); // add packet info to beginning of data list\n        return buffers; // write all the buffers\n    }\n}\n// see https://stackoverflow.com/questions/8511281/check-if-a-value-is-an-object-in-javascript\nfunction isObject(value) {\n    return Object.prototype.toString.call(value) === \"[object Object]\";\n}\n/**\n * A socket.io Decoder instance\n *\n * @return {Object} decoder\n */\nexport class Decoder extends Emitter {\n    /**\n     * Decoder constructor\n     *\n     * @param {function} reviver - custom reviver to pass down to JSON.stringify\n     */\n    constructor(reviver) {\n        super();\n        this.reviver = reviver;\n    }\n    /**\n     * Decodes an encoded packet string into packet JSON.\n     *\n     * @param {String} obj - encoded packet\n     */\n    add(obj) {\n        let packet;\n        if (typeof obj === \"string\") {\n            if (this.reconstructor) {\n                throw new Error(\"got plaintext data when reconstructing a packet\");\n            }\n            packet = this.decodeString(obj);\n            const isBinaryEvent = packet.type === PacketType.BINARY_EVENT;\n            if (isBinaryEvent || packet.type === PacketType.BINARY_ACK) {\n                packet.type = isBinaryEvent ? PacketType.EVENT : PacketType.ACK;\n                // binary packet's json\n                this.reconstructor = new BinaryReconstructor(packet);\n                // no attachments, labeled binary but no binary data to follow\n                if (packet.attachments === 0) {\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n            else {\n                // non-binary full packet\n                super.emitReserved(\"decoded\", packet);\n            }\n        }\n        else if (isBinary(obj) || obj.base64) {\n            // raw binary data\n            if (!this.reconstructor) {\n                throw new Error(\"got binary data when not reconstructing a packet\");\n            }\n            else {\n                packet = this.reconstructor.takeBinaryData(obj);\n                if (packet) {\n                    // received final buffer\n                    this.reconstructor = null;\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n        }\n        else {\n            throw new Error(\"Unknown type: \" + obj);\n        }\n    }\n    /**\n     * Decode a packet String (JSON data)\n     *\n     * @param {String} str\n     * @return {Object} packet\n     */\n    decodeString(str) {\n        let i = 0;\n        // look up type\n        const p = {\n            type: Number(str.charAt(0)),\n        };\n        if (PacketType[p.type] === undefined) {\n            throw new Error(\"unknown packet type \" + p.type);\n        }\n        // look up attachments if type binary\n        if (p.type === PacketType.BINARY_EVENT ||\n            p.type === PacketType.BINARY_ACK) {\n            const start = i + 1;\n            while (str.charAt(++i) !== \"-\" && i != str.length) { }\n            const buf = str.substring(start, i);\n            if (buf != Number(buf) || str.charAt(i) !== \"-\") {\n                throw new Error(\"Illegal attachments\");\n            }\n            p.attachments = Number(buf);\n        }\n        // look up namespace (if any)\n        if (\"/\" === str.charAt(i + 1)) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (\",\" === c)\n                    break;\n                if (i === str.length)\n                    break;\n            }\n            p.nsp = str.substring(start, i);\n        }\n        else {\n            p.nsp = \"/\";\n        }\n        // look up id\n        const next = str.charAt(i + 1);\n        if (\"\" !== next && Number(next) == next) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (null == c || Number(c) != c) {\n                    --i;\n                    break;\n                }\n                if (i === str.length)\n                    break;\n            }\n            p.id = Number(str.substring(start, i + 1));\n        }\n        // look up json data\n        if (str.charAt(++i)) {\n            const payload = this.tryParse(str.substr(i));\n            if (Decoder.isPayloadValid(p.type, payload)) {\n                p.data = payload;\n            }\n            else {\n                throw new Error(\"invalid payload\");\n            }\n        }\n        return p;\n    }\n    tryParse(str) {\n        try {\n            return JSON.parse(str, this.reviver);\n        }\n        catch (e) {\n            return false;\n        }\n    }\n    static isPayloadValid(type, payload) {\n        switch (type) {\n            case PacketType.CONNECT:\n                return isObject(payload);\n            case PacketType.DISCONNECT:\n                return payload === undefined;\n            case PacketType.CONNECT_ERROR:\n                return typeof payload === \"string\" || isObject(payload);\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                return (Array.isArray(payload) &&\n                    (typeof payload[0] === \"number\" ||\n                        (typeof payload[0] === \"string\" &&\n                            RESERVED_EVENTS.indexOf(payload[0]) === -1)));\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                return Array.isArray(payload);\n        }\n    }\n    /**\n     * Deallocates a parser's resources\n     */\n    destroy() {\n        if (this.reconstructor) {\n            this.reconstructor.finishedReconstruction();\n            this.reconstructor = null;\n        }\n    }\n}\n/**\n * A manager of a binary event's 'buffer sequence'. Should\n * be constructed whenever a packet of type BINARY_EVENT is\n * decoded.\n *\n * @param {Object} packet\n * @return {BinaryReconstructor} initialized reconstructor\n */\nclass BinaryReconstructor {\n    constructor(packet) {\n        this.packet = packet;\n        this.buffers = [];\n        this.reconPack = packet;\n    }\n    /**\n     * Method to be called when binary data received from connection\n     * after a BINARY_EVENT packet.\n     *\n     * @param {Buffer | ArrayBuffer} binData - the raw binary data received\n     * @return {null | Object} returns null if more binary data is expected or\n     *   a reconstructed packet object if all buffers have been received.\n     */\n    takeBinaryData(binData) {\n        this.buffers.push(binData);\n        if (this.buffers.length === this.reconPack.attachments) {\n            // done with buffer list\n            const packet = reconstructPacket(this.reconPack, this.buffers);\n            this.finishedReconstruction();\n            return packet;\n        }\n        return null;\n    }\n    /**\n     * Cleans up binary packet reconstruction variables.\n     */\n    finishedReconstruction() {\n        this.reconPack = null;\n        this.buffers = [];\n    }\n}\n", "const withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nconst isView = (obj) => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj.buffer instanceof ArrayBuffer;\n};\nconst toString = Object.prototype.toString;\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeFile = typeof File === \"function\" ||\n    (typeof File !== \"undefined\" &&\n        toString.call(File) === \"[object FileConstructor]\");\n/**\n * Returns true if obj is a Buffer, an ArrayBuffer, a Blob or a File.\n *\n * @private\n */\nexport function isBinary(obj) {\n    return ((withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj))) ||\n        (withNativeBlob && obj instanceof Blob) ||\n        (withNativeFile && obj instanceof File));\n}\nexport function hasBinary(obj, toJSON) {\n    if (!obj || typeof obj !== \"object\") {\n        return false;\n    }\n    if (Array.isArray(obj)) {\n        for (let i = 0, l = obj.length; i < l; i++) {\n            if (hasBinary(obj[i])) {\n                return true;\n            }\n        }\n        return false;\n    }\n    if (isBinary(obj)) {\n        return true;\n    }\n    if (obj.toJSON &&\n        typeof obj.toJSON === \"function\" &&\n        arguments.length === 1) {\n        return hasBinary(obj.toJSON(), true);\n    }\n    for (const key in obj) {\n        if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {\n            return true;\n        }\n    }\n    return false;\n}\n", "import { isBinary } from \"./is-binary.js\";\n/**\n * Replaces every Buffer | ArrayBuffer | Blob | File in packet with a numbered placeholder.\n *\n * @param {Object} packet - socket.io event packet\n * @return {Object} with deconstructed packet and list of buffers\n * @public\n */\nexport function deconstructPacket(packet) {\n    const buffers = [];\n    const packetData = packet.data;\n    const pack = packet;\n    pack.data = _deconstructPacket(packetData, buffers);\n    pack.attachments = buffers.length; // number of binary 'attachments'\n    return { packet: pack, buffers: buffers };\n}\nfunction _deconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (isBinary(data)) {\n        const placeholder = { _placeholder: true, num: buffers.length };\n        buffers.push(data);\n        return placeholder;\n    }\n    else if (Array.isArray(data)) {\n        const newData = new Array(data.length);\n        for (let i = 0; i < data.length; i++) {\n            newData[i] = _deconstructPacket(data[i], buffers);\n        }\n        return newData;\n    }\n    else if (typeof data === \"object\" && !(data instanceof Date)) {\n        const newData = {};\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                newData[key] = _deconstructPacket(data[key], buffers);\n            }\n        }\n        return newData;\n    }\n    return data;\n}\n/**\n * Reconstructs a binary packet from its placeholder packet and buffers\n *\n * @param {Object} packet - event packet with placeholders\n * @param {Array} buffers - binary buffers to put in placeholder positions\n * @return {Object} reconstructed packet\n * @public\n */\nexport function reconstructPacket(packet, buffers) {\n    packet.data = _reconstructPacket(packet.data, buffers);\n    delete packet.attachments; // no longer useful\n    return packet;\n}\nfunction _reconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (data && data._placeholder === true) {\n        const isIndexValid = typeof data.num === \"number\" &&\n            data.num >= 0 &&\n            data.num < buffers.length;\n        if (isIndexValid) {\n            return buffers[data.num]; // appropriate buffer (should be natural order anyway)\n        }\n        else {\n            throw new Error(\"illegal attachments\");\n        }\n    }\n    else if (Array.isArray(data)) {\n        for (let i = 0; i < data.length; i++) {\n            data[i] = _reconstructPacket(data[i], buffers);\n        }\n    }\n    else if (typeof data === \"object\") {\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                data[key] = _reconstructPacket(data[key], buffers);\n            }\n        }\n    }\n    return data;\n}\n", "export function on(obj, ev, fn) {\n    obj.on(ev, fn);\n    return function subDestroy() {\n        obj.off(ev, fn);\n    };\n}\n", "import { PacketType } from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\n/**\n * Internal events.\n * These events can't be emitted by the user.\n */\nconst RESERVED_EVENTS = Object.freeze({\n    connect: 1,\n    connect_error: 1,\n    disconnect: 1,\n    disconnecting: 1,\n    // EventEmitter reserved events: https://nodejs.org/api/events.html#events_event_newlistener\n    newListener: 1,\n    removeListener: 1,\n});\n/**\n * A Socket is the fundamental class for interacting with the server.\n *\n * A Socket belongs to a certain Namespace (by default /) and uses an underlying {@link Manager} to communicate.\n *\n * @example\n * const socket = io();\n *\n * socket.on(\"connect\", () => {\n *   console.log(\"connected\");\n * });\n *\n * // send an event to the server\n * socket.emit(\"foo\", \"bar\");\n *\n * socket.on(\"foobar\", () => {\n *   // an event was received from the server\n * });\n *\n * // upon disconnection\n * socket.on(\"disconnect\", (reason) => {\n *   console.log(`disconnected due to ${reason}`);\n * });\n */\nexport class Socket extends Emitter {\n    /**\n     * `Socket` constructor.\n     */\n    constructor(io, nsp, opts) {\n        super();\n        /**\n         * Whether the socket is currently connected to the server.\n         *\n         * @example\n         * const socket = io();\n         *\n         * socket.on(\"connect\", () => {\n         *   console.log(socket.connected); // true\n         * });\n         *\n         * socket.on(\"disconnect\", () => {\n         *   console.log(socket.connected); // false\n         * });\n         */\n        this.connected = false;\n        /**\n         * Whether the connection state was recovered after a temporary disconnection. In that case, any missed packets will\n         * be transmitted by the server.\n         */\n        this.recovered = false;\n        /**\n         * Buffer for packets received before the CONNECT packet\n         */\n        this.receiveBuffer = [];\n        /**\n         * Buffer for packets that will be sent once the socket is connected\n         */\n        this.sendBuffer = [];\n        /**\n         * The queue of packets to be sent with retry in case of failure.\n         *\n         * Packets are sent one by one, each waiting for the server acknowledgement, in order to guarantee the delivery order.\n         * @private\n         */\n        this._queue = [];\n        /**\n         * A sequence to generate the ID of the {@link QueuedPacket}.\n         * @private\n         */\n        this._queueSeq = 0;\n        this.ids = 0;\n        this.acks = {};\n        this.flags = {};\n        this.io = io;\n        this.nsp = nsp;\n        if (opts && opts.auth) {\n            this.auth = opts.auth;\n        }\n        this._opts = Object.assign({}, opts);\n        if (this.io._autoConnect)\n            this.open();\n    }\n    /**\n     * Whether the socket is currently disconnected\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"connect\", () => {\n     *   console.log(socket.disconnected); // false\n     * });\n     *\n     * socket.on(\"disconnect\", () => {\n     *   console.log(socket.disconnected); // true\n     * });\n     */\n    get disconnected() {\n        return !this.connected;\n    }\n    /**\n     * Subscribe to open, close and packet events\n     *\n     * @private\n     */\n    subEvents() {\n        if (this.subs)\n            return;\n        const io = this.io;\n        this.subs = [\n            on(io, \"open\", this.onopen.bind(this)),\n            on(io, \"packet\", this.onpacket.bind(this)),\n            on(io, \"error\", this.onerror.bind(this)),\n            on(io, \"close\", this.onclose.bind(this)),\n        ];\n    }\n    /**\n     * Whether the Socket will try to reconnect when its Manager connects or reconnects.\n     *\n     * @example\n     * const socket = io();\n     *\n     * console.log(socket.active); // true\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   if (reason === \"io server disconnect\") {\n     *     // the disconnection was initiated by the server, you need to manually reconnect\n     *     console.log(socket.active); // false\n     *   }\n     *   // else the socket will automatically try to reconnect\n     *   console.log(socket.active); // true\n     * });\n     */\n    get active() {\n        return !!this.subs;\n    }\n    /**\n     * \"Opens\" the socket.\n     *\n     * @example\n     * const socket = io({\n     *   autoConnect: false\n     * });\n     *\n     * socket.connect();\n     */\n    connect() {\n        if (this.connected)\n            return this;\n        this.subEvents();\n        if (!this.io[\"_reconnecting\"])\n            this.io.open(); // ensure open\n        if (\"open\" === this.io._readyState)\n            this.onopen();\n        return this;\n    }\n    /**\n     * Alias for {@link connect()}.\n     */\n    open() {\n        return this.connect();\n    }\n    /**\n     * Sends a `message` event.\n     *\n     * This method mimics the WebSocket.send() method.\n     *\n     * @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send\n     *\n     * @example\n     * socket.send(\"hello\");\n     *\n     * // this is equivalent to\n     * socket.emit(\"message\", \"hello\");\n     *\n     * @return self\n     */\n    send(...args) {\n        args.unshift(\"message\");\n        this.emit.apply(this, args);\n        return this;\n    }\n    /**\n     * Override `emit`.\n     * If the event is in `events`, it's emitted normally.\n     *\n     * @example\n     * socket.emit(\"hello\", \"world\");\n     *\n     * // all serializable datastructures are supported (no need to call JSON.stringify)\n     * socket.emit(\"hello\", 1, \"2\", { 3: [\"4\"], 5: Uint8Array.from([6]) });\n     *\n     * // with an acknowledgement from the server\n     * socket.emit(\"hello\", \"world\", (val) => {\n     *   // ...\n     * });\n     *\n     * @return self\n     */\n    emit(ev, ...args) {\n        if (RESERVED_EVENTS.hasOwnProperty(ev)) {\n            throw new Error('\"' + ev.toString() + '\" is a reserved event name');\n        }\n        args.unshift(ev);\n        if (this._opts.retries && !this.flags.fromQueue && !this.flags.volatile) {\n            this._addToQueue(args);\n            return this;\n        }\n        const packet = {\n            type: PacketType.EVENT,\n            data: args,\n        };\n        packet.options = {};\n        packet.options.compress = this.flags.compress !== false;\n        // event ack callback\n        if (\"function\" === typeof args[args.length - 1]) {\n            const id = this.ids++;\n            const ack = args.pop();\n            this._registerAckCallback(id, ack);\n            packet.id = id;\n        }\n        const isTransportWritable = this.io.engine &&\n            this.io.engine.transport &&\n            this.io.engine.transport.writable;\n        const discardPacket = this.flags.volatile && (!isTransportWritable || !this.connected);\n        if (discardPacket) {\n        }\n        else if (this.connected) {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        }\n        else {\n            this.sendBuffer.push(packet);\n        }\n        this.flags = {};\n        return this;\n    }\n    /**\n     * @private\n     */\n    _registerAckCallback(id, ack) {\n        var _a;\n        const timeout = (_a = this.flags.timeout) !== null && _a !== void 0 ? _a : this._opts.ackTimeout;\n        if (timeout === undefined) {\n            this.acks[id] = ack;\n            return;\n        }\n        // @ts-ignore\n        const timer = this.io.setTimeoutFn(() => {\n            delete this.acks[id];\n            for (let i = 0; i < this.sendBuffer.length; i++) {\n                if (this.sendBuffer[i].id === id) {\n                    this.sendBuffer.splice(i, 1);\n                }\n            }\n            ack.call(this, new Error(\"operation has timed out\"));\n        }, timeout);\n        this.acks[id] = (...args) => {\n            // @ts-ignore\n            this.io.clearTimeoutFn(timer);\n            ack.apply(this, [null, ...args]);\n        };\n    }\n    /**\n     * Emits an event and waits for an acknowledgement\n     *\n     * @example\n     * // without timeout\n     * const response = await socket.emitWithAck(\"hello\", \"world\");\n     *\n     * // with a specific timeout\n     * try {\n     *   const response = await socket.timeout(1000).emitWithAck(\"hello\", \"world\");\n     * } catch (err) {\n     *   // the server did not acknowledge the event in the given delay\n     * }\n     *\n     * @return a Promise that will be fulfilled when the server acknowledges the event\n     */\n    emitWithAck(ev, ...args) {\n        // the timeout flag is optional\n        const withErr = this.flags.timeout !== undefined || this._opts.ackTimeout !== undefined;\n        return new Promise((resolve, reject) => {\n            args.push((arg1, arg2) => {\n                if (withErr) {\n                    return arg1 ? reject(arg1) : resolve(arg2);\n                }\n                else {\n                    return resolve(arg1);\n                }\n            });\n            this.emit(ev, ...args);\n        });\n    }\n    /**\n     * Add the packet to the queue.\n     * @param args\n     * @private\n     */\n    _addToQueue(args) {\n        let ack;\n        if (typeof args[args.length - 1] === \"function\") {\n            ack = args.pop();\n        }\n        const packet = {\n            id: this._queueSeq++,\n            tryCount: 0,\n            pending: false,\n            args,\n            flags: Object.assign({ fromQueue: true }, this.flags),\n        };\n        args.push((err, ...responseArgs) => {\n            if (packet !== this._queue[0]) {\n                // the packet has already been acknowledged\n                return;\n            }\n            const hasError = err !== null;\n            if (hasError) {\n                if (packet.tryCount > this._opts.retries) {\n                    this._queue.shift();\n                    if (ack) {\n                        ack(err);\n                    }\n                }\n            }\n            else {\n                this._queue.shift();\n                if (ack) {\n                    ack(null, ...responseArgs);\n                }\n            }\n            packet.pending = false;\n            return this._drainQueue();\n        });\n        this._queue.push(packet);\n        this._drainQueue();\n    }\n    /**\n     * Send the first packet of the queue, and wait for an acknowledgement from the server.\n     * @param force - whether to resend a packet that has not been acknowledged yet\n     *\n     * @private\n     */\n    _drainQueue(force = false) {\n        if (!this.connected || this._queue.length === 0) {\n            return;\n        }\n        const packet = this._queue[0];\n        if (packet.pending && !force) {\n            return;\n        }\n        packet.pending = true;\n        packet.tryCount++;\n        this.flags = packet.flags;\n        this.emit.apply(this, packet.args);\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param packet\n     * @private\n     */\n    packet(packet) {\n        packet.nsp = this.nsp;\n        this.io._packet(packet);\n    }\n    /**\n     * Called upon engine `open`.\n     *\n     * @private\n     */\n    onopen() {\n        if (typeof this.auth == \"function\") {\n            this.auth((data) => {\n                this._sendConnectPacket(data);\n            });\n        }\n        else {\n            this._sendConnectPacket(this.auth);\n        }\n    }\n    /**\n     * Sends a CONNECT packet to initiate the Socket.IO session.\n     *\n     * @param data\n     * @private\n     */\n    _sendConnectPacket(data) {\n        this.packet({\n            type: PacketType.CONNECT,\n            data: this._pid\n                ? Object.assign({ pid: this._pid, offset: this._lastOffset }, data)\n                : data,\n        });\n    }\n    /**\n     * Called upon engine or manager `error`.\n     *\n     * @param err\n     * @private\n     */\n    onerror(err) {\n        if (!this.connected) {\n            this.emitReserved(\"connect_error\", err);\n        }\n    }\n    /**\n     * Called upon engine `close`.\n     *\n     * @param reason\n     * @param description\n     * @private\n     */\n    onclose(reason, description) {\n        this.connected = false;\n        delete this.id;\n        this.emitReserved(\"disconnect\", reason, description);\n    }\n    /**\n     * Called with socket packet.\n     *\n     * @param packet\n     * @private\n     */\n    onpacket(packet) {\n        const sameNamespace = packet.nsp === this.nsp;\n        if (!sameNamespace)\n            return;\n        switch (packet.type) {\n            case PacketType.CONNECT:\n                if (packet.data && packet.data.sid) {\n                    this.onconnect(packet.data.sid, packet.data.pid);\n                }\n                else {\n                    this.emitReserved(\"connect_error\", new Error(\"It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)\"));\n                }\n                break;\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                this.onevent(packet);\n                break;\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                this.onack(packet);\n                break;\n            case PacketType.DISCONNECT:\n                this.ondisconnect();\n                break;\n            case PacketType.CONNECT_ERROR:\n                this.destroy();\n                const err = new Error(packet.data.message);\n                // @ts-ignore\n                err.data = packet.data.data;\n                this.emitReserved(\"connect_error\", err);\n                break;\n        }\n    }\n    /**\n     * Called upon a server event.\n     *\n     * @param packet\n     * @private\n     */\n    onevent(packet) {\n        const args = packet.data || [];\n        if (null != packet.id) {\n            args.push(this.ack(packet.id));\n        }\n        if (this.connected) {\n            this.emitEvent(args);\n        }\n        else {\n            this.receiveBuffer.push(Object.freeze(args));\n        }\n    }\n    emitEvent(args) {\n        if (this._anyListeners && this._anyListeners.length) {\n            const listeners = this._anyListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, args);\n            }\n        }\n        super.emit.apply(this, args);\n        if (this._pid && args.length && typeof args[args.length - 1] === \"string\") {\n            this._lastOffset = args[args.length - 1];\n        }\n    }\n    /**\n     * Produces an ack callback to emit with an event.\n     *\n     * @private\n     */\n    ack(id) {\n        const self = this;\n        let sent = false;\n        return function (...args) {\n            // prevent double callbacks\n            if (sent)\n                return;\n            sent = true;\n            self.packet({\n                type: PacketType.ACK,\n                id: id,\n                data: args,\n            });\n        };\n    }\n    /**\n     * Called upon a server acknowlegement.\n     *\n     * @param packet\n     * @private\n     */\n    onack(packet) {\n        const ack = this.acks[packet.id];\n        if (\"function\" === typeof ack) {\n            ack.apply(this, packet.data);\n            delete this.acks[packet.id];\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon server connect.\n     *\n     * @private\n     */\n    onconnect(id, pid) {\n        this.id = id;\n        this.recovered = pid && this._pid === pid;\n        this._pid = pid; // defined only if connection state recovery is enabled\n        this.connected = true;\n        this.emitBuffered();\n        this.emitReserved(\"connect\");\n        this._drainQueue(true);\n    }\n    /**\n     * Emit buffered events (received and emitted).\n     *\n     * @private\n     */\n    emitBuffered() {\n        this.receiveBuffer.forEach((args) => this.emitEvent(args));\n        this.receiveBuffer = [];\n        this.sendBuffer.forEach((packet) => {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        });\n        this.sendBuffer = [];\n    }\n    /**\n     * Called upon server disconnect.\n     *\n     * @private\n     */\n    ondisconnect() {\n        this.destroy();\n        this.onclose(\"io server disconnect\");\n    }\n    /**\n     * Called upon forced client/server side disconnections,\n     * this method ensures the manager stops tracking us and\n     * that reconnections don't get triggered for this.\n     *\n     * @private\n     */\n    destroy() {\n        if (this.subs) {\n            // clean subscriptions to avoid reconnections\n            this.subs.forEach((subDestroy) => subDestroy());\n            this.subs = undefined;\n        }\n        this.io[\"_destroy\"](this);\n    }\n    /**\n     * Disconnects the socket manually. In that case, the socket will not try to reconnect.\n     *\n     * If this is the last active Socket instance of the {@link Manager}, the low-level connection will be closed.\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   // console.log(reason); prints \"io client disconnect\"\n     * });\n     *\n     * socket.disconnect();\n     *\n     * @return self\n     */\n    disconnect() {\n        if (this.connected) {\n            this.packet({ type: PacketType.DISCONNECT });\n        }\n        // remove socket from pool\n        this.destroy();\n        if (this.connected) {\n            // fire events\n            this.onclose(\"io client disconnect\");\n        }\n        return this;\n    }\n    /**\n     * Alias for {@link disconnect()}.\n     *\n     * @return self\n     */\n    close() {\n        return this.disconnect();\n    }\n    /**\n     * Sets the compress flag.\n     *\n     * @example\n     * socket.compress(false).emit(\"hello\");\n     *\n     * @param compress - if `true`, compresses the sending data\n     * @return self\n     */\n    compress(compress) {\n        this.flags.compress = compress;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the event message will be dropped when this socket is not\n     * ready to send messages.\n     *\n     * @example\n     * socket.volatile.emit(\"hello\"); // the server may or may not receive it\n     *\n     * @returns self\n     */\n    get volatile() {\n        this.flags.volatile = true;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the callback will be called with an error when the\n     * given number of milliseconds have elapsed without an acknowledgement from the server:\n     *\n     * @example\n     * socket.timeout(5000).emit(\"my-event\", (err) => {\n     *   if (err) {\n     *     // the server did not acknowledge the event in the given delay\n     *   }\n     * });\n     *\n     * @returns self\n     */\n    timeout(timeout) {\n        this.flags.timeout = timeout;\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * @example\n     * socket.onAny((event, ...args) => {\n     *   console.log(`got ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * @example\n     * socket.prependAny((event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * }\n     *\n     * socket.onAny(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAny(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAny();\n     *\n     * @param listener\n     */\n    offAny(listener) {\n        if (!this._anyListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAny() {\n        return this._anyListeners || [];\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.onAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.prependAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * }\n     *\n     * socket.onAnyOutgoing(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAnyOutgoing(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAnyOutgoing();\n     *\n     * @param [listener] - the catch-all listener (optional)\n     */\n    offAnyOutgoing(listener) {\n        if (!this._anyOutgoingListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyOutgoingListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyOutgoingListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAnyOutgoing() {\n        return this._anyOutgoingListeners || [];\n    }\n    /**\n     * Notify the listeners for each packet sent\n     *\n     * @param packet\n     *\n     * @private\n     */\n    notifyOutgoingListeners(packet) {\n        if (this._anyOutgoingListeners && this._anyOutgoingListeners.length) {\n            const listeners = this._anyOutgoingListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, packet.data);\n            }\n        }\n    }\n}\n", "/**\n * Initialize backoff timer with `opts`.\n *\n * - `min` initial timeout in milliseconds [100]\n * - `max` max timeout [10000]\n * - `jitter` [0]\n * - `factor` [2]\n *\n * @param {Object} opts\n * @api public\n */\nexport function Backoff(opts) {\n    opts = opts || {};\n    this.ms = opts.min || 100;\n    this.max = opts.max || 10000;\n    this.factor = opts.factor || 2;\n    this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;\n    this.attempts = 0;\n}\n/**\n * Return the backoff duration.\n *\n * @return {Number}\n * @api public\n */\nBackoff.prototype.duration = function () {\n    var ms = this.ms * Math.pow(this.factor, this.attempts++);\n    if (this.jitter) {\n        var rand = Math.random();\n        var deviation = Math.floor(rand * this.jitter * ms);\n        ms = (Math.floor(rand * 10) & 1) == 0 ? ms - deviation : ms + deviation;\n    }\n    return Math.min(ms, this.max) | 0;\n};\n/**\n * Reset the number of attempts.\n *\n * @api public\n */\nBackoff.prototype.reset = function () {\n    this.attempts = 0;\n};\n/**\n * Set the minimum duration\n *\n * @api public\n */\nBackoff.prototype.setMin = function (min) {\n    this.ms = min;\n};\n/**\n * Set the maximum duration\n *\n * @api public\n */\nBackoff.prototype.setMax = function (max) {\n    this.max = max;\n};\n/**\n * Set the jitter\n *\n * @api public\n */\nBackoff.prototype.setJitter = function (jitter) {\n    this.jitter = jitter;\n};\n", "import { Socket as Engine, installTimerFunctions, nextTick, } from \"engine.io-client\";\nimport { Socket } from \"./socket.js\";\nimport * as parser from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Backoff } from \"./contrib/backo2.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\nexport class Manager extends Emitter {\n    constructor(uri, opts) {\n        var _a;\n        super();\n        this.nsps = {};\n        this.subs = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = undefined;\n        }\n        opts = opts || {};\n        opts.path = opts.path || \"/socket.io\";\n        this.opts = opts;\n        installTimerFunctions(this, opts);\n        this.reconnection(opts.reconnection !== false);\n        this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);\n        this.reconnectionDelay(opts.reconnectionDelay || 1000);\n        this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);\n        this.randomizationFactor((_a = opts.randomizationFactor) !== null && _a !== void 0 ? _a : 0.5);\n        this.backoff = new Backoff({\n            min: this.reconnectionDelay(),\n            max: this.reconnectionDelayMax(),\n            jitter: this.randomizationFactor(),\n        });\n        this.timeout(null == opts.timeout ? 20000 : opts.timeout);\n        this._readyState = \"closed\";\n        this.uri = uri;\n        const _parser = opts.parser || parser;\n        this.encoder = new _parser.Encoder();\n        this.decoder = new _parser.Decoder();\n        this._autoConnect = opts.autoConnect !== false;\n        if (this._autoConnect)\n            this.open();\n    }\n    reconnection(v) {\n        if (!arguments.length)\n            return this._reconnection;\n        this._reconnection = !!v;\n        return this;\n    }\n    reconnectionAttempts(v) {\n        if (v === undefined)\n            return this._reconnectionAttempts;\n        this._reconnectionAttempts = v;\n        return this;\n    }\n    reconnectionDelay(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelay;\n        this._reconnectionDelay = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMin(v);\n        return this;\n    }\n    randomizationFactor(v) {\n        var _a;\n        if (v === undefined)\n            return this._randomizationFactor;\n        this._randomizationFactor = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setJitter(v);\n        return this;\n    }\n    reconnectionDelayMax(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelayMax;\n        this._reconnectionDelayMax = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMax(v);\n        return this;\n    }\n    timeout(v) {\n        if (!arguments.length)\n            return this._timeout;\n        this._timeout = v;\n        return this;\n    }\n    /**\n     * Starts trying to reconnect if reconnection is enabled and we have not\n     * started reconnecting yet\n     *\n     * @private\n     */\n    maybeReconnectOnOpen() {\n        // Only try to reconnect if it's the first time we're connecting\n        if (!this._reconnecting &&\n            this._reconnection &&\n            this.backoff.attempts === 0) {\n            // keeps reconnection from firing twice for the same reconnection loop\n            this.reconnect();\n        }\n    }\n    /**\n     * Sets the current transport `socket`.\n     *\n     * @param {Function} fn - optional, callback\n     * @return self\n     * @public\n     */\n    open(fn) {\n        if (~this._readyState.indexOf(\"open\"))\n            return this;\n        this.engine = new Engine(this.uri, this.opts);\n        const socket = this.engine;\n        const self = this;\n        this._readyState = \"opening\";\n        this.skipReconnect = false;\n        // emit `open`\n        const openSubDestroy = on(socket, \"open\", function () {\n            self.onopen();\n            fn && fn();\n        });\n        const onError = (err) => {\n            this.cleanup();\n            this._readyState = \"closed\";\n            this.emitReserved(\"error\", err);\n            if (fn) {\n                fn(err);\n            }\n            else {\n                // Only do this if there is no fn to handle the error\n                this.maybeReconnectOnOpen();\n            }\n        };\n        // emit `error`\n        const errorSub = on(socket, \"error\", onError);\n        if (false !== this._timeout) {\n            const timeout = this._timeout;\n            // set timer\n            const timer = this.setTimeoutFn(() => {\n                openSubDestroy();\n                onError(new Error(\"timeout\"));\n                socket.close();\n            }, timeout);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n        this.subs.push(openSubDestroy);\n        this.subs.push(errorSub);\n        return this;\n    }\n    /**\n     * Alias for open()\n     *\n     * @return self\n     * @public\n     */\n    connect(fn) {\n        return this.open(fn);\n    }\n    /**\n     * Called upon transport open.\n     *\n     * @private\n     */\n    onopen() {\n        // clear old subs\n        this.cleanup();\n        // mark as open\n        this._readyState = \"open\";\n        this.emitReserved(\"open\");\n        // add new subs\n        const socket = this.engine;\n        this.subs.push(on(socket, \"ping\", this.onping.bind(this)), on(socket, \"data\", this.ondata.bind(this)), on(socket, \"error\", this.onerror.bind(this)), on(socket, \"close\", this.onclose.bind(this)), on(this.decoder, \"decoded\", this.ondecoded.bind(this)));\n    }\n    /**\n     * Called upon a ping.\n     *\n     * @private\n     */\n    onping() {\n        this.emitReserved(\"ping\");\n    }\n    /**\n     * Called with data.\n     *\n     * @private\n     */\n    ondata(data) {\n        try {\n            this.decoder.add(data);\n        }\n        catch (e) {\n            this.onclose(\"parse error\", e);\n        }\n    }\n    /**\n     * Called when parser fully decodes a packet.\n     *\n     * @private\n     */\n    ondecoded(packet) {\n        // the nextTick call prevents an exception in a user-provided event listener from triggering a disconnection due to a \"parse error\"\n        nextTick(() => {\n            this.emitReserved(\"packet\", packet);\n        }, this.setTimeoutFn);\n    }\n    /**\n     * Called upon socket error.\n     *\n     * @private\n     */\n    onerror(err) {\n        this.emitReserved(\"error\", err);\n    }\n    /**\n     * Creates a new socket for the given `nsp`.\n     *\n     * @return {Socket}\n     * @public\n     */\n    socket(nsp, opts) {\n        let socket = this.nsps[nsp];\n        if (!socket) {\n            socket = new Socket(this, nsp, opts);\n            this.nsps[nsp] = socket;\n        }\n        else if (this._autoConnect && !socket.active) {\n            socket.connect();\n        }\n        return socket;\n    }\n    /**\n     * Called upon a socket close.\n     *\n     * @param socket\n     * @private\n     */\n    _destroy(socket) {\n        const nsps = Object.keys(this.nsps);\n        for (const nsp of nsps) {\n            const socket = this.nsps[nsp];\n            if (socket.active) {\n                return;\n            }\n        }\n        this._close();\n    }\n    /**\n     * Writes a packet.\n     *\n     * @param packet\n     * @private\n     */\n    _packet(packet) {\n        const encodedPackets = this.encoder.encode(packet);\n        for (let i = 0; i < encodedPackets.length; i++) {\n            this.engine.write(encodedPackets[i], packet.options);\n        }\n    }\n    /**\n     * Clean up transport subscriptions and packet buffer.\n     *\n     * @private\n     */\n    cleanup() {\n        this.subs.forEach((subDestroy) => subDestroy());\n        this.subs.length = 0;\n        this.decoder.destroy();\n    }\n    /**\n     * Close the current socket.\n     *\n     * @private\n     */\n    _close() {\n        this.skipReconnect = true;\n        this._reconnecting = false;\n        this.onclose(\"forced close\");\n        if (this.engine)\n            this.engine.close();\n    }\n    /**\n     * Alias for close()\n     *\n     * @private\n     */\n    disconnect() {\n        return this._close();\n    }\n    /**\n     * Called upon engine close.\n     *\n     * @private\n     */\n    onclose(reason, description) {\n        this.cleanup();\n        this.backoff.reset();\n        this._readyState = \"closed\";\n        this.emitReserved(\"close\", reason, description);\n        if (this._reconnection && !this.skipReconnect) {\n            this.reconnect();\n        }\n    }\n    /**\n     * Attempt a reconnection.\n     *\n     * @private\n     */\n    reconnect() {\n        if (this._reconnecting || this.skipReconnect)\n            return this;\n        const self = this;\n        if (this.backoff.attempts >= this._reconnectionAttempts) {\n            this.backoff.reset();\n            this.emitReserved(\"reconnect_failed\");\n            this._reconnecting = false;\n        }\n        else {\n            const delay = this.backoff.duration();\n            this._reconnecting = true;\n            const timer = this.setTimeoutFn(() => {\n                if (self.skipReconnect)\n                    return;\n                this.emitReserved(\"reconnect_attempt\", self.backoff.attempts);\n                // check again for the case socket closed in above events\n                if (self.skipReconnect)\n                    return;\n                self.open((err) => {\n                    if (err) {\n                        self._reconnecting = false;\n                        self.reconnect();\n                        this.emitReserved(\"reconnect_error\", err);\n                    }\n                    else {\n                        self.onreconnect();\n                    }\n                });\n            }, delay);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n    }\n    /**\n     * Called upon successful reconnect.\n     *\n     * @private\n     */\n    onreconnect() {\n        const attempt = this.backoff.attempts;\n        this._reconnecting = false;\n        this.backoff.reset();\n        this.emitReserved(\"reconnect\", attempt);\n    }\n}\n", "import { url } from \"./url.js\";\nimport { Manager } from \"./manager.js\";\nimport { Socket } from \"./socket.js\";\n/**\n * Managers cache.\n */\nconst cache = {};\nfunction lookup(uri, opts) {\n    if (typeof uri === \"object\") {\n        opts = uri;\n        uri = undefined;\n    }\n    opts = opts || {};\n    const parsed = url(uri, opts.path || \"/socket.io\");\n    const source = parsed.source;\n    const id = parsed.id;\n    const path = parsed.path;\n    const sameNamespace = cache[id] && path in cache[id][\"nsps\"];\n    const newConnection = opts.forceNew ||\n        opts[\"force new connection\"] ||\n        false === opts.multiplex ||\n        sameNamespace;\n    let io;\n    if (newConnection) {\n        io = new Manager(source, opts);\n    }\n    else {\n        if (!cache[id]) {\n            cache[id] = new Manager(source, opts);\n        }\n        io = cache[id];\n    }\n    if (parsed.query && !opts.query) {\n        opts.query = parsed.queryKey;\n    }\n    return io.socket(parsed.path, opts);\n}\n// so that \"lookup\" can be used both as a function (e.g. `io(...)`) and as a\n// namespace (e.g. `io.connect(...)`), for backward compatibility\nObject.assign(lookup, {\n    Manager,\n    Socket,\n    io: lookup,\n    connect: lookup,\n});\n/**\n * Protocol version.\n *\n * @public\n */\nexport { protocol } from \"socket.io-parser\";\n/**\n * Expose constructors for standalone build.\n *\n * @public\n */\nexport { Manager, Socket, lookup as io, lookup as connect, lookup as default, };\n"],
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+  "names": ["require_ui", "__commonJSMin", "exports", "module", "_a", "Ui", "win", "extLog", "jsonHighlight", "__publicField", "config", "notify", "resolve", "reject", "ev", "ui", "isRecurse", "compToAdd", "i", "newEl", "elParent", "el", "comp", "attrib", "type", "evt", "err", "prop", "parentEl", "components", "ns", "component", "__toESM", "__require", "script", "sheet", "msg", "all", "compToRemove", "els", "compToReplace", "elToReplace", "compToUpd", "elToUpd", "cssSelector", "classNames", "mdText", "opts", "str", "lang", "md", "url", "uiOptions", "response", "error", "contentType", "slot", "txtReturn", "data", "newScript", "textFn", "newStyle", "node", "thisOut", "listEntries", "bodyEntries", "headEntries", "cols", "v", "permit", "html", "content", "toaster", "toast", "json", "propName", "selection", "out", "p", "cType", "key", "import_ui", "_UibVar", "__publicField", "attrib", "oldVal", "newVal", "val", "t", "UibVar", "PACKET_TYPES", "PACKET_TYPES_REVERSE", "key", "ERROR_PACKET", "withNativeBlob", "withNativeArrayBuffer", "isView", "obj", "encodePacket", "type", "data", "supportsBinary", "callback", "encodeBlobAsBase64", "PACKET_TYPES", "fileReader", "content", "toArray", "TEXT_ENCODER", "encodePacketToBinary", "packet", "encoded", "chars", "lookup", "i", "decode", "base64", "bufferLength", "len", "p", "encoded1", "encoded2", "encoded3", "encoded4", "arraybuffer", "bytes", "lookup", "withNativeArrayBuffer", "decodePacket", "encodedPacket", "binaryType", "mapBinary", "type", "decodeBase64Packet", "PACKET_TYPES_REVERSE", "ERROR_PACKET", "data", "decoded", "decode", "SEPARATOR", "encodePayload", "packets", "callback", "length", "encodedPackets", "count", "packet", "i", "encodePacket", "encodedPacket", "decodePayload", "encodedPayload", "binaryType", "decodedPacket", "decodePacket", "createPacketEncoderStream", "controller", "encodePacketToBinary", "payloadLength", "header", "view", "TEXT_DECODER", "totalLength", "chunks", "acc", "chunk", "concatChunks", "size", "buffer", "j", "createPacketDecoderStream", "maxPayload", "state", "expectedLength", "isBinary", "headerArray", "n", "ERROR_PACKET", "data", "protocol", "Emitter", "obj", "mixin", "key", "event", "fn", "on", "callbacks", "cb", "i", "args", "len", "globalThisShim", "pick", "obj", "attr", "acc", "k", "NATIVE_SET_TIMEOUT", "globalThisShim", "NATIVE_CLEAR_TIMEOUT", "installTimerFunctions", "opts", "BASE64_OVERHEAD", "byteLength", "utf8Length", "str", "c", "length", "l", "encode", "obj", "str", "i", "decode", "qs", "qry", "pairs", "l", "pair", "TransportError", "reason", "description", "context", "Transport", "Emitter", "opts", "installTimerFunctions", "packets", "data", "packet", "decodePacket", "details", "onPause", "schema", "query", "hostname", "encodedQuery", "encode", "alphabet", "length", "map", "seed", "i", "prev", "encode", "num", "encoded", "yeast", "now", "encode", "prev", "seed", "i", "length", "map", "alphabet", "value", "hasCORS", "XHR", "opts", "xdomain", "hasCORS", "globalThisShim", "empty", "hasXHR2", "XHR", "Polling", "Transport", "opts", "isSSL", "port", "forceBase64", "onPause", "pause", "total", "data", "callback", "packet", "decodePayload", "close", "packets", "encodePayload", "schema", "query", "yeast", "Request", "fn", "req", "xhrStatus", "context", "_Request", "Emitter", "uri", "installTimerFunctions", "_a", "pick", "xhr", "i", "e", "err", "fromError", "unloadHandler", "terminationEvent", "globalThisShim", "nextTick", "cb", "setTimeoutFn", "WebSocket", "globalThisShim", "usingBrowserWebSocket", "defaultBinaryType", "isReactNative", "WS", "Transport", "opts", "uri", "protocols", "pick", "usingBrowserWebSocket", "WebSocket", "err", "closeEvent", "ev", "packets", "i", "packet", "lastPacket", "encodePacket", "data", "nextTick", "schema", "query", "yeast", "WT", "Transport", "err", "stream", "decoderStream", "createPacketDecoderStream", "reader", "encoderStream", "createPacketEncoderStream", "read", "done", "value", "packet", "packets", "i", 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"hasBinary", "toJSON", "i", "l", "key", "deconstructPacket", "packet", "buffers", "packetData", "pack", "_deconstructPacket", "data", "isBinary", "placeholder", "newData", "key", "reconstructPacket", "_reconstructPacket", "i", "RESERVED_EVENTS", "protocol", "PacketType", "Encoder", "replacer", "obj", "hasBinary", "str", "deconstruction", "deconstructPacket", "pack", "buffers", "isObject", "value", "Decoder", "_Decoder", "Emitter", "reviver", "packet", "isBinaryEvent", "BinaryReconstructor", "isBinary", "i", "p", "start", "buf", "next", "c", "payload", "type", "binData", "reconstructPacket", "on", "obj", "ev", "fn", "RESERVED_EVENTS", "Socket", "Emitter", "io", "nsp", "opts", "on", "args", "ev", "packet", "PacketType", "id", "ack", "isTransportWritable", "_a", "timeout", "timer", "i", "withErr", "resolve", "reject", "arg1", "arg2", "err", "responseArgs", "force", "data", "reason", "description", "listeners", "listener", "self", "sent", "pid", "subDestroy", "compress", "Backoff", "opts", "ms", "rand", "deviation", "min", "max", "jitter", "Manager", "Emitter", "uri", "opts", "_a", "installTimerFunctions", "Backoff", "_parser", "esm_exports", "v", "fn", "Socket", "socket", "self", "openSubDestroy", "on", "onError", "err", "errorSub", "timeout", "timer", "data", "e", "packet", "nextTick", "nsp", "nsps", "encodedPackets", "subDestroy", "reason", "description", "delay", "attempt", "cache", "lookup", "uri", "opts", "parsed", "url", "source", "id", "path", "sameNamespace", "newConnection", "io", "Manager", "Socket", "version", "isMinified", "param", "logLevel", "LOG_STYLES", "log", "args", "level", "strLevel", "head", "makeMeAnObject", "thing", "property", "out", "urlJoin", "e", "syntaxHighlight", "json", "match", "cls", "_ui", "Ui", "_a", "_pingInterval", "_propChangeCallbacks", "_msgRecvdByTopicCallbacks", "_timerid", "_MsgHandler", "_isShowMsg", "_isShowStatus", "_sendUrlHash", "_extCommands", "_managedVars", "_showStatus", "_uiObservers", "Uib", "__publicField", "__privateAdd", "cb", "c", "splitC", "event", "__privateGet", "fullPath", "autoloadVars", "id", "prop", "val", "store", "autoload", "value", "autoVars", "title", "details", "callback", "nextCbRef", "propChangeCallback", "cbRef", "topic", "msgRecvdEvtCallback", "msg", "receivedMsg", "serverTimestamp", "offset", "originator", "ms", "oReq", "headers", "elapsedTime", "__privateSet", "varToCopy", "data", "cssSelector", "el", "exists", "url", "deflt", "ret", "toggle", "mdText", "uiOptions", "textFn", "component", "html", "type", "ui", "propName", "showHide", "parent", "slot", "config", "res", "err", "opts", "root", "entry", "startStop", "send", "showLog", "targetNode", "that", "mutationList", "mu", "oMu", "an", "i", "htmlCache", "receivedCtrlMsg", "obj", "r", "msgToSend", "channel", "numMsgs", "cmd", "quiet", "response", "info", "newUrl", "txtToSend", "domevent", "target", "props", "key", "ignoreAttribs", "attribs", "name", "form", "frmVals", "frmEl", "v", "classes", "payload", "nprops", "ioNamespace", "u", "t", "delay", "factor", "depth", "reason", "lookup", "options", "eMsg", "uibuilder", "uibuilder_module_default", "uibuilder", "UibVar"]
 }
diff --git a/front-end/uibuilder.iife.js b/front-end/uibuilder.iife.js
index 29df7dc7..8c88522b 100644
--- a/front-end/uibuilder.iife.js
+++ b/front-end/uibuilder.iife.js
@@ -247,13 +247,6 @@
             this.replaceSlotMarkdown(el, comp);
           }
         }
-        /** External alias for _uiComposeComponent
-         * @param {*} el HTML Element to enhance
-         * @param {*} comp Individual uibuilder ui component spec
-         */
-        uiEnhanceElement(el, comp) {
-          this._uiComposeComponent(el, comp);
-        }
         /** Extend an HTML Element with appended elements using ui components
          * NOTE: This fn follows a strict hierarchy of added components.
          * @param {HTMLElement} parentEl The parent HTML Element we want to append to
@@ -505,6 +498,46 @@
         // --- end of _uiUpdate ---
         //#endregion ---- -------- ----
         //#region ---- External Methods ----
+        /** Simplistic jQuery-like document CSS query selector, returns an HTML Element
+         * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.
+         * If the selected element is a <template>, returns the first child element.
+         * type {HTMLElement}
+         * @param {string} cssSelector A CSS Selector that identifies the element to return
+         * @returns {HTMLElement|null} Selected HTML element or null
+         */
+        $(cssSelector) {
+          let el = document.querySelector(cssSelector);
+          if (!el) {
+            _a2.log(1, "Uib:$", `No element found for CSS selector ${cssSelector}`)();
+            return null;
+          }
+          if (el.nodeName === "TEMPLATE") {
+            el = el.content.firstElementChild;
+            if (!el) {
+              _a2.log(0, "Uib:$", `Template selected for CSS selector ${cssSelector} but it is empty`)();
+              return null;
+            }
+          }
+          return el;
+        }
+        /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.
+         * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself
+         * @param {string} cssSelector A CSS Selector that identifies the elements to return
+         * @returns {HTMLElement[]} Array of DOM elements/nodes. Array is empty if selector is not found.
+         */
+        $$(cssSelector) {
+          return Array.from(document.querySelectorAll(cssSelector));
+        }
+        /** Add 1 or several class names to an element
+         * @param {string|string[]} classNames Single or array of classnames
+         * @param {HTMLElement} el HTML Element to add class(es) to
+         */
+        addClass(classNames, el) {
+          if (!Array.isArray(classNames))
+            classNames = [classNames];
+          if (el)
+            el.classList.add(...classNames);
+        }
         /** Converts markdown text input to HTML if the Markdown-IT library is loaded
          * Otherwise simply returns the text
          * @param {string} mdText The input markdown string
@@ -791,6 +824,8 @@
               if (attrib.name !== "id") {
                 thisOut.attributes[attrib.name] = node.attributes[attrib.name].value;
               }
+              if (attrib.name === "class")
+                thisOut.classes = Array.from(node.classList);
             }
           }
           if (node.nodeName === "#text") {
@@ -830,6 +865,20 @@
             return Promise.reject(new Error("Notifications not permitted by user"));
           }
         }
+        /** Remove All, 1 or more class names from an element
+         * @param {undefined|null|""|string|string[]} classNames Single or array of classnames. If undefined, "" or null, remove all classes
+         * @param {HTMLElement} el HTML Element to add class(es) to
+         */
+        removeClass(classNames, el) {
+          if (!classNames) {
+            el.removeAttribute("class");
+            return;
+          }
+          if (!Array.isArray(classNames))
+            classNames = [classNames];
+          if (el)
+            el.classList.remove(...classNames);
+        }
         // TODO Add multi-slot
         /** Replace or add an HTML element's slot from text or an HTML string
          * Will use DOMPurify if that library has been loaded to window.
@@ -883,9 +932,9 @@
         showDialog(type, ui, msg) {
           let content = "";
           if (msg.payload && typeof msg.payload === "string")
-            content += msg.payload;
+            content += `<div>${msg.payload}</div>`;
           if (ui.content)
-            content += ui.content;
+            content += `<div>${ui.content}</div>`;
           if (content === "") {
             _a2.log(1, "Ui:showDialog", "Toast content is blank. Not shown.")();
             return;
@@ -958,6 +1007,7 @@
             msg = json;
           else
             msg._ui = json;
+          console.log(this);
           this._uiManager(msg);
         }
         /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.
@@ -972,7 +1022,9 @@
           );
           const out = [];
           selection.forEach((node) => {
-            if (propName !== null && propName !== "") {
+            if (propName) {
+              if (propName === "classes")
+                propName = "class";
               let prop = node.getAttribute(propName);
               if (prop === void 0 || prop === null) {
                 try {
@@ -986,23 +1038,23 @@
                 else
                   out.push(`Property '${propName}' not found`);
               } else {
-                if (prop.constructor.name === "NamedNodeMap") {
-                  const p = {};
+                const p = {};
+                const cType = prop.constructor.name.toLowerCase();
+                if (cType === "namednodemap") {
                   for (const key of prop) {
                     p[key.name] = prop[key.name].value;
                   }
-                  out.push(p);
-                } else if (!prop.constructor.name.toLowerCase().includes("map")) {
-                  out.push({
-                    [propName]: prop
-                  });
+                } else if (!cType.includes("map")) {
+                  p[propName] = prop;
                 } else {
-                  const p = {};
+                  const p2 = {};
                   for (const key in prop) {
-                    p[key] = prop[key];
+                    p2[key] = prop[key];
                   }
-                  out.push(p);
                 }
+                if (p.class)
+                  p.classes = Array.from(node.classList);
+                out.push(p);
               }
             } else {
               out.push(this.nodeGet(node, cssSelector));
@@ -1011,6 +1063,13 @@
           return out;
         }
         // --- end of uiGet --- //
+        /** External alias for _uiComposeComponent
+         * @param {*} el HTML Element to enhance
+         * @param {*} comp Individual uibuilder ui component spec
+         */
+        uiEnhanceElement(el, comp) {
+          this._uiComposeComponent(el, comp);
+        }
         //#endregion ---- -------- ----
       }, /** Log function - passed in constructor or will be a dummy function
        * @type {function}
@@ -4842,6 +4901,36 @@
           }
         }
       });
+      //#endregion -------- -------- -------- //
+      //#region ------- UI handlers --------- //
+      //#region -- Direct to _ui --
+      // ! NOTE: Direct assignments change the target `this` to here. Use with caution
+      /** Simplistic jQuery-like document CSS query selector, returns an HTML Element
+       * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.
+       * If the selected element is a <template>, returns the first child element.
+       * type {HTMLElement}
+       * @param {string} cssSelector A CSS Selector that identifies the element to return
+       * @returns {HTMLElement|null} Selected HTML element or null
+       */
+      __publicField(this, "$", _ui.$);
+      /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.
+       * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself
+       * @param {string} cssSelector A CSS Selector that identifies the elements to return
+       * @returns {HTMLElement[]} Array of DOM elements/nodes. Array is empty if selector is not found.
+       */
+      __publicField(this, "$$", _ui.$$);
+      /** Reference to the full ui library */
+      __publicField(this, "$ui", _ui);
+      /** Add 1 or several class names to an element
+       * @param {string|string[]} classNames Single or array of classnames
+       * @param {HTMLElement} el HTML Element to add class(es) to
+       */
+      __publicField(this, "addClass", _ui.addClass);
+      /** Remove All, 1 or more class names from an element
+       * @param {undefined|null|""|string|string[]} classNames Single or array of classnames. If undefined, "" or null, remove all classes
+       * @param {HTMLElement} el HTML Element to add class(es) to
+       */
+      __publicField(this, "removeClass", _ui.removeClass);
       log("trace", "Uib:constructor", "Starting")();
       window.addEventListener("offline", (e) => {
         this.set("online", false);
@@ -5160,36 +5249,6 @@
         }
       }
     }
-    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element
-     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.
-     * If the selected element is a <template>, returns the first child element.
-     * type {HTMLElement}
-     * @param {string} cssSelector A CSS Selector that identifies the element to return
-     * @returns {*} Selected HTML element or null
-     */
-    $(cssSelector) {
-      let el = document.querySelector(cssSelector);
-      if (!el) {
-        log(1, "Uib:$", `No element found for CSS selector ${cssSelector}`)();
-        return null;
-      }
-      if (el.nodeName === "TEMPLATE") {
-        el = el.content.firstElementChild;
-        if (!el) {
-          log(0, "Uib:$", `Template selected for CSS selector ${cssSelector} but it is empty`)();
-          return null;
-        }
-      }
-      return el;
-    }
-    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.
-     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself
-     * @param {*} cssSelector A CSS Selector that identifies the elements to return
-     * @returns {Array} Array of DOM elements/nodes. Array is empty if selector is not found.
-     */
-    $$(cssSelector) {
-      return Array.from(document.querySelectorAll(cssSelector));
-    }
     /** Set the default originator. Set to '' to ignore. Used with uib-sender.
      * @param {string} [originator] A Node-RED node ID to return the message to
      */
@@ -5264,6 +5323,7 @@
      * Requires IntersectionObserver (available to all mainstream browsers from early 2019)
      * Automatically sends a msg back to Node-RED.
      * Requires the element to already exist.
+     * @returns {false}
      */
     elementIsVisible() {
       const info = "elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex";
@@ -5345,48 +5405,24 @@
         window.location.href = url2;
       return window.location;
     }
-    //#endregion -------- -------- -------- //
-    //#region ------- UI handlers --------- //
-    //#region -- Direct to _ui --
-    /** Directly manage UI via JSON
-     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions
-     */
-    ui(json) {
-      _ui.ui(json);
-    }
-    /** Replace or add an HTML element's slot from text or an HTML string
-     * Will use DOMPurify if that library has been loaded to window.
-     * param {*} ui Single entry from the msg._ui property
-     * @param {Element} el Reference to the element that we want to update
-     * @param {*} component The component we are trying to add/replace
-     */
-    replaceSlot(el, component) {
-      _ui.replaceSlot(el, component);
-    }
-    /** Replace or add an HTML element's slot from a Markdown string
-     * Only does something if the markdownit library has been loaded to window.
-     * Will use DOMPurify if that library has been loaded to window.
-     * @param {Element} el Reference to the element that we want to update
-     * @param {*} component The component we are trying to add/replace
-     */
-    replaceSlotMarkdown(el, component) {
-      _ui.replaceSlotMarkdown(el, component);
-    }
     /** Converts markdown text input to HTML if the Markdown-IT library is loaded
      * Otherwise simply returns the text
      * @param {string} mdText The input markdown string
      * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text
      */
     convertMarkdown(mdText) {
-      return _ui.convertMarkdown(mdText);
+      return _ui.convertMarkdown;
     }
-    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded
-     * Otherwise just returns that HTML as-is.
-     * @param {string} html The input HTML string
-     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded
+    /** ASYNC: Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API
+     * Wraps the included object in a div tag.
+     * PDF's, text or unknown MIME types are also wrapped in an iFrame.
+     * @param {string} url The URL of the source file to include
+     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id
+     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag
+     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')
      */
-    sanitiseHTML(html) {
-      return _ui.sanitiseHTML(html);
+    async include(url2, uiOptions) {
+      await _ui.include(url2, uiOptions);
     }
     /** Attach a new remote script to the end of HEAD synchronously
      * NOTE: It takes too long for most scripts to finish loading
@@ -5420,6 +5456,38 @@
     loadStyleTxt(textFn) {
       _ui.loadStyleTxt(textFn);
     }
+    /** Load a dynamic UI from a JSON web reponse
+     * @param {string} url URL that will return the ui JSON
+     */
+    loadui(url2) {
+      _ui.loadui(url2);
+    }
+    /** Replace or add an HTML element's slot from text or an HTML string
+     * Will use DOMPurify if that library has been loaded to window.
+     * param {*} ui Single entry from the msg._ui property
+     * @param {Element} el Reference to the element that we want to update
+     * @param {*} component The component we are trying to add/replace
+     */
+    replaceSlot(el, component) {
+      _ui.replaceSlot(el, component);
+    }
+    /** Replace or add an HTML element's slot from a Markdown string
+     * Only does something if the markdownit library has been loaded to window.
+     * Will use DOMPurify if that library has been loaded to window.
+     * @param {Element} el Reference to the element that we want to update
+     * @param {*} component The component we are trying to add/replace
+     */
+    replaceSlotMarkdown(el, component) {
+      _ui.replaceSlotMarkdown(el, component);
+    }
+    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded
+     * Otherwise just returns that HTML as-is.
+     * @param {string} html The input HTML string
+     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded
+     */
+    sanitiseHTML(html) {
+      return _ui.sanitiseHTML(html);
+    }
     /** Show a pop-over "toast" dialog or a modal alert
      * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,
      *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,
@@ -5432,11 +5500,11 @@
     showDialog(type, ui, msg) {
       _ui.showDialog(type, ui, msg);
     }
-    /** Load a dynamic UI from a JSON web reponse
-     * @param {string} url URL that will return the ui JSON
+    /** Directly manage UI via JSON
+     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions
      */
-    loadui(url2) {
-      _ui.loadui(url2);
+    ui(json) {
+      _ui.ui(json);
     }
     /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.
      * @param {string} cssSelector Identify the DOM element to get data from
@@ -5446,17 +5514,6 @@
     uiGet(cssSelector, propName = null) {
       return _ui.uiGet(cssSelector, propName);
     }
-    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API
-     * Wraps the included object in a div tag.
-     * PDF's, text or unknown MIME types are also wrapped in an iFrame.
-     * @param {string} url The URL of the source file to include
-     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id
-     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag
-     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')
-     */
-    async include(url2, uiOptions) {
-      _ui.include(url2, uiOptions);
-    }
     /** Enhance an HTML element that is being composed with ui data
      *  such as ID, attribs, event handlers, custom props, etc.
      * @param {*} el HTML Element to enhance
@@ -5769,6 +5826,98 @@
     // ---- End of watchDom ---- //
     //#endregion -------- -------- -------- //
     //#region ------- Message Handling (To/From Node-RED) -------- //
+    /** Handles original control msgs (not to be confused with "new" msg._uib controls)
+     * @param {*} receivedCtrlMsg The msg received on the socket.io control channel
+     */
+    _ctrlMsgFromServer(receivedCtrlMsg) {
+      if (receivedCtrlMsg === null) {
+        receivedCtrlMsg = {};
+      } else if (typeof receivedCtrlMsg !== "object") {
+        const msg = {};
+        msg["uibuilderCtrl:" + this._ioChannels.control] = receivedCtrlMsg;
+        receivedCtrlMsg = msg;
+      }
+      this._checkTimestamp(receivedCtrlMsg);
+      this.set("ctrlMsg", receivedCtrlMsg);
+      this.set("msgsCtrlReceived", ++this.msgsCtrlReceived);
+      log("trace", "Uib:ioSetup:_ctrlMsgFromServer", `Channel '${this._ioChannels.control}'. Received control msg #${this.msgsCtrlReceived}`, receivedCtrlMsg)();
+      switch (receivedCtrlMsg.uibuilderCtrl) {
+        case "shutdown": {
+          log("info", `Uib:ioSetup:${this._ioChannels.control}`, '\u274C Received "shutdown" from server')();
+          this.set("serverShutdown", void 0);
+          break;
+        }
+        case "client connect": {
+          log("trace", `Uib:ioSetup:${this._ioChannels.control}`, 'Received "client connect" from server')();
+          log("info", `Uib:ioSetup:${this._ioChannels.control}`, `\u2705 Server connected. Version: ${receivedCtrlMsg.version}
+Server time: ${receivedCtrlMsg.serverTimestamp}, Sever time offset: ${this.serverTimeOffset} hours`)();
+          if (!_a._meta.version.startsWith(receivedCtrlMsg.version.split("-")[0])) {
+            log("warn", `Uib:ioSetup:${this._ioChannels.control}`, `Server version (${receivedCtrlMsg.version}) not the same as the client version (${_a._meta.version})`)();
+          }
+          if (this.autoSendReady === true) {
+            log("trace", `Uib:ioSetup:${this._ioChannels.control}/client connect`, "Auto-sending ready-for-content/replay msg to server");
+          }
+          break;
+        }
+        default: {
+          log("trace", `uibuilderfe:ioSetup:${this._ioChannels.control}`, `Received ${receivedCtrlMsg.uibuilderCtrl} from server`);
+        }
+      }
+    }
+    // -- End of websocket receive CONTROL msg from Node-RED -- //
+    /** Do we want to process something? Check pageName, clientId, tabId. Defaults to yes.
+     * @param {*} obj Either a msg._ui or msg._uib object to check
+     * @returns {boolean} True if we should process the inbound _ui/_uib msg, false if not.
+     */
+    _forThis(obj) {
+      let r = true;
+      if (obj.pageName && obj.pageName !== this.pageName) {
+        log("trace", "Uib:_msgRcvdEvents:_uib", "Not for this page")();
+        r = false;
+      }
+      if (obj.clientId && obj.clientId !== this.clientId) {
+        log("trace", "Uib:_msgRcvdEvents:_uib", "Not for this clientId")();
+        r = false;
+      }
+      if (obj.tabId && obj.tabId !== this.tabId) {
+        log("trace", "Uib:_msgRcvdEvents:_uib", "Not for this tabId")();
+        r = false;
+      }
+      return r;
+    }
+    // Handle received messages - Process some msgs internally, emit specific events on document that make it easy for coders to use
+    _msgRcvdEvents(msg) {
+      this._dispatchCustomEvent("uibuilder:stdMsgReceived", msg);
+      if (msg.topic)
+        this._dispatchCustomEvent(`uibuilder:msg:topic:${msg.topic}`, msg);
+      if (msg._uib) {
+        if (!this._forThis(msg._uib))
+          return;
+        if (msg._uib.reload === true) {
+          log("trace", "Uib:_msgRcvdEvents:_uib:reload", "reloading")();
+          location.reload();
+          return;
+        }
+        if (msg._uib.command) {
+          this._uibCommand(msg);
+          return;
+        }
+        if (msg._uib.componentRef === "globalNotification") {
+          _ui.showDialog("notify", msg._uib.options, msg);
+        }
+        if (msg._uib.componentRef === "globalAlert") {
+          _ui.showDialog("alert", msg._uib.options, msg);
+        }
+      }
+      if (msg._ui) {
+        if (!this._forThis(msg._ui))
+          return;
+        log("trace", "Uib:_msgRcvdEvents:_ui", "Calling _uiManager")();
+        this._dispatchCustomEvent("uibuilder:msg:_ui", msg);
+        _ui._uiManager(msg);
+      }
+    }
+    // --- end of _msgRcvdEvents ---
     /** Internal send fn. Send a standard or control msg back to Node-RED via Socket.IO
      * NR will generally expect the msg to contain a payload topic
      * @param {object} msgToSend The msg object to send.
@@ -5815,26 +5964,209 @@
       this._socket.emit(channel, msgToSend);
     }
     // --- End of Send Msg Fn --- //
-    /** Send a standard message to NR
-     * @example uibuilder.send({payload:'Hello'})
-     * @param {object} msg Message to send
-     * @param {string} [originator] A Node-RED node ID to return the message to
+    /** Callback handler for messages from Node-RED
+     * NOTE: `this` is the class here rather the `socket` as would be normal since we bind the correct `this` in the call.
+     *       Use this._socket if needing reference to the socket.
+     * @callback ioSetupFromServer Called from ioSetup/this._socket.on(this.#ioChannels.server, this.stdMsgFromServer.bind(this))
+     * @param {object} receivedMsg The msg object from Node-RED
+     * @this Uib
      */
-    send(msg, originator = "") {
-      this._send(msg, this._ioChannels.client, originator);
+    _stdMsgFromServer(receivedMsg) {
+      receivedMsg = makeMeAnObject(receivedMsg, "payload");
+      if (receivedMsg._uib && !this._forThis(receivedMsg._uib))
+        return;
+      if (receivedMsg._ui && !this._forThis(receivedMsg._ui))
+        return;
+      this._checkTimestamp(receivedMsg);
+      this.set("msgsReceived", ++this.msgsReceived);
+      this._msgRcvdEvents(receivedMsg);
+      if (!("_ui" in receivedMsg && !("payload" in receivedMsg))) {
+        this.set("msg", receivedMsg);
+      }
+      log("info", "Uib:ioSetup:stdMsgFromServer", `Channel '${this._ioChannels.server}'. Received msg #${this.msgsReceived}.`, receivedMsg)();
     }
-    /** Send a control msg to NR
-     * @param {object} msg Message to send
+    // -- End of websocket receive DATA msg from Node-RED -- //
+    /** Process msg._uib.command - Remember to update #extCommands with new allowed commands
+     * @param {object} msg Msg from Node-RED containing a msg._uib object
      */
-    sendCtrl(msg) {
-      this._send(msg, this._ioChannels.control);
-    }
-    /** Easily send a msg back to Node-RED on a DOM event
-     * @example In plain HTML/JavaScript
-     *    `<button id="button1" name="button 1" data-fred="jim"></button>`
-     *    $('#button1').onclick = (evt) => {
-     *      uibuilder.eventSend(evt)
-     *    }
+    _uibCommand(msg) {
+      if (!msg._uib || !msg._uib.command) {
+        log("error", "uibuilder:_uibCommand", "Invalid command message received", { msg })();
+        msg.payload = msg.error = "Invalid command message received";
+        this.send(msg);
+        return;
+      }
+      const cmd = msg._uib.command;
+      if (!__privateGet(this, _extCommands).includes(cmd.trim())) {
+        log("error", "Uib:_uibCommand", `Command '${cmd} is not allowed to be called externally`)();
+        return;
+      }
+      const prop = msg._uib.prop;
+      const value2 = msg._uib.value;
+      const quiet = msg._uib.quiet ?? false;
+      let response, info;
+      switch (cmd) {
+        case "elementIsVisible": {
+          response = this.elementIsVisible(prop);
+          break;
+        }
+        case "elementExists": {
+          response = this.elementExists(prop, false);
+          info = `Element "${prop}" ${response ? "exists" : "does not exist"}`;
+          break;
+        }
+        case "get": {
+          response = this.get(prop);
+          break;
+        }
+        case "getManagedVarList": {
+          if (prop === "full")
+            response = this.getManagedVarList();
+          else
+            response = Object.values(this.getManagedVarList());
+          break;
+        }
+        case "getWatchedVars": {
+          if (prop === "full")
+            response = this.getWatchedVars();
+          else
+            response = Object.values(this.getWatchedVars());
+          break;
+        }
+        case "htmlSend": {
+          response = this.htmlSend("", false);
+          break;
+        }
+        case "include": {
+          response = _ui.include(prop, value2);
+          break;
+        }
+        case "navigate": {
+          let newUrl;
+          if (prop)
+            newUrl = prop;
+          else if (value2)
+            newUrl = value2;
+          response = this.navigate(newUrl);
+          break;
+        }
+        case "scrollTo": {
+          response = this.scrollTo(prop, value2);
+          break;
+        }
+        case "set": {
+          let store = false;
+          let autoload = false;
+          if (msg._uib.options && msg._uib.options.store) {
+            if (msg._uib.options.store === true)
+              store = true;
+            if (msg._uib.options.autoload === true)
+              autoload = true;
+          }
+          response = this.set(prop, value2, store, autoload);
+          break;
+        }
+        case "showMsg": {
+          response = this.showMsg(value2, prop);
+          break;
+        }
+        case "showStatus": {
+          response = this.showStatus(value2, prop);
+          break;
+        }
+        case "uiGet": {
+          response = _ui.uiGet(prop, value2);
+          break;
+        }
+        case "uiWatch": {
+          response = this.uiWatch(prop);
+          break;
+        }
+        case "watchUrlHash": {
+          response = this.watchUrlHash(prop);
+          break;
+        }
+        default: {
+          log("warning", "Uib:_uibCommand", `Command '${cmd}' not yet implemented`)();
+          break;
+        }
+      }
+      if (quiet !== true) {
+        if (response === void 0) {
+          response = `'${prop}' is undefined`;
+        }
+        if (Object(response).constructor === Promise) {
+          response.then((data) => {
+            msg.payload = msg._uib.response = data;
+            msg.info = msg._uib.info = info;
+            if (!msg.topic)
+              msg.topic = this.topic || `uib ${cmd} for '${prop}'`;
+            this.send(msg);
+            return true;
+          }).catch((err) => {
+            log(0, "Uib:_uibCommand", "Error: ", err)();
+          });
+        } else {
+          msg.payload = msg._uib.response = response;
+          msg.info = msg._uib.info = info;
+          if (!msg.topic)
+            msg.topic = this.topic || `uib ${cmd} for '${prop}'`;
+          this.send(msg);
+        }
+      }
+    }
+    // --- end of _uibCommand ---
+    /** Send log text to uibuilder's beacon endpoint (works even if socket.io not connected)
+     * @param {string} txtToSend Text string to send
+     * @param {string|undefined} logLevel Log level to use. If not supplied, will default to debug
+     */
+    beaconLog(txtToSend, logLevel2) {
+      if (!logLevel2)
+        logLevel2 = "debug";
+      navigator.sendBeacon("./_clientLog", `${logLevel2}::${txtToSend}`);
+    }
+    /** Easily send the entire DOM/HTML msg back to Node-RED
+     * @param {string} [originator] A Node-RED node ID to return the message to
+     * @param {boolean} [send] If true (default) directly send response to Node-RED. Is false when calling from Node-RED as a command.
+     * @returns {string} The HTML as a string
+     */
+    htmlSend(originator = "", send = true) {
+      const out = `<!doctype html>
+${document.documentElement.outerHTML}`;
+      const msg = {
+        payload: out,
+        length: out.length,
+        topic: this.topic
+      };
+      log("trace", "Uib:htmlSend", "Sending full HTML to Node-RED", msg)();
+      if (send === true)
+        this._send(msg, this._ioChannels.client, originator);
+      return out;
+    }
+    /** Send log info back to Node-RED over uibuilder's websocket control output (Port #2)
+     * @param {...*} arguments All arguments passed to the function are added to the msg.payload
+     */
+    logToServer() {
+      this.sendCtrl({
+        uibuilderCtrl: "client log message",
+        payload: arguments,
+        // "version":"6.1.0-iife.min",
+        _socketId: this._socket.id,
+        // "ip":"::1",
+        clientId: this.clientId,
+        tabId: this.tabId,
+        // "url":"esp-test",
+        pageName: this.pageName,
+        connections: this.connectedNum,
+        lastNavType: this.lastNavType
+      });
+    }
+    /** Easily send a msg back to Node-RED on a DOM event
+     * @example In plain HTML/JavaScript
+     *    `<button id="button1" name="button 1" data-fred="jim"></button>`
+     *    $('#button1').onclick = (evt) => {
+     *      uibuilder.eventSend(evt)
+     *    }
      * @example
      * In VueJS: `<b-button id="myButton1" @click="doEvent" data-something="hello"></b-button>`
      * In VueJS methods: `doEvent: uibuilder.eventSend,`
@@ -5990,294 +6322,19 @@
         log("warn", "Uib:eventSend", "No payload in msg. data-* attributes should be used.")();
       this._send(msg, this._ioChannels.client, originator);
     }
-    /** Easily send the entire DOM/HTML msg back to Node-RED
+    /** Send a standard message to NR
+     * @example uibuilder.send({payload:'Hello'})
+     * @param {object} msg Message to send
      * @param {string} [originator] A Node-RED node ID to return the message to
-     * @param {boolean} [send] If true (default) directly send response to Node-RED. Is false when calling from Node-RED as a command.
-     * @returns {string} The HTML as a string
-     */
-    htmlSend(originator = "", send = true) {
-      const out = `<!doctype html>
-${document.documentElement.outerHTML}`;
-      const msg = {
-        payload: out,
-        length: out.length,
-        topic: this.topic
-      };
-      log("trace", "Uib:htmlSend", "Sending full HTML to Node-RED", msg)();
-      if (send === true)
-        this._send(msg, this._ioChannels.client, originator);
-      return out;
-    }
-    /** Process msg._uib.command - Remember to update #extCommands with new allowed commands
-     * @param {object} msg Msg from Node-RED containing a msg._uib object
      */
-    _uibCommand(msg) {
-      if (!msg._uib || !msg._uib.command) {
-        log("error", "uibuilder:_uibCommand", "Invalid command message received", { msg })();
-        msg.payload = msg.error = "Invalid command message received";
-        this.send(msg);
-        return;
-      }
-      const cmd = msg._uib.command;
-      if (!__privateGet(this, _extCommands).includes(cmd.trim())) {
-        log("error", "Uib:_uibCommand", `Command '${cmd} is not allowed to be called externally`)();
-        return;
-      }
-      const prop = msg._uib.prop;
-      const value2 = msg._uib.value;
-      const quiet = msg._uib.quiet ?? false;
-      let response, info;
-      switch (cmd) {
-        case "elementIsVisible": {
-          response = this.elementIsVisible(prop);
-          break;
-        }
-        case "elementExists": {
-          response = this.elementExists(prop, false);
-          info = `Element "${prop}" ${response ? "exists" : "does not exist"}`;
-          break;
-        }
-        case "get": {
-          response = this.get(prop);
-          break;
-        }
-        case "getManagedVarList": {
-          if (prop === "full")
-            response = this.getManagedVarList();
-          else
-            response = Object.values(this.getManagedVarList());
-          break;
-        }
-        case "getWatchedVars": {
-          if (prop === "full")
-            response = this.getWatchedVars();
-          else
-            response = Object.values(this.getWatchedVars());
-          break;
-        }
-        case "htmlSend": {
-          response = this.htmlSend("", false);
-          break;
-        }
-        case "include": {
-          response = _ui.include(prop, value2);
-          break;
-        }
-        case "navigate": {
-          let newUrl;
-          if (prop)
-            newUrl = prop;
-          else if (value2)
-            newUrl = value2;
-          response = this.navigate(newUrl);
-          break;
-        }
-        case "scrollTo": {
-          response = this.scrollTo(prop, value2);
-          break;
-        }
-        case "set": {
-          let store = false;
-          let autoload = false;
-          if (msg._uib.options && msg._uib.options.store) {
-            if (msg._uib.options.store === true)
-              store = true;
-            if (msg._uib.options.autoload === true)
-              autoload = true;
-          }
-          response = this.set(prop, value2, store, autoload);
-          break;
-        }
-        case "showMsg": {
-          response = this.showMsg(value2, prop);
-          break;
-        }
-        case "showStatus": {
-          response = this.showStatus(value2, prop);
-          break;
-        }
-        case "uiGet": {
-          response = _ui.uiGet(prop, value2);
-          break;
-        }
-        case "uiWatch": {
-          response = this.uiWatch(prop);
-          break;
-        }
-        case "watchUrlHash": {
-          response = this.watchUrlHash(prop);
-          break;
-        }
-        default: {
-          log("warning", "Uib:_uibCommand", `Command '${cmd}' not yet implemented`)();
-          break;
-        }
-      }
-      if (quiet !== true) {
-        if (response === void 0) {
-          response = `'${prop}' is undefined`;
-        }
-        if (Object(response).constructor === Promise) {
-          response.then((data) => {
-            msg.payload = msg._uib.response = data;
-            msg.info = msg._uib.info = info;
-            if (!msg.topic)
-              msg.topic = this.topic || `uib ${cmd} for '${prop}'`;
-            this.send(msg);
-            return true;
-          }).catch((err) => {
-            log(0, "Uib:_uibCommand", "Error: ", err)();
-          });
-        } else {
-          msg.payload = msg._uib.response = response;
-          msg.info = msg._uib.info = info;
-          if (!msg.topic)
-            msg.topic = this.topic || `uib ${cmd} for '${prop}'`;
-          this.send(msg);
-        }
-      }
-    }
-    // --- end of _uibCommand ---
-    /** Do we want to process something? Check pageName, clientId, tabId. Defaults to yes.
-     * @param {*} obj Either a msg._ui or msg._uib object to check
-     * @returns {boolean} True if we should process the inbound _ui/_uib msg, false if not.
-     */
-    _forThis(obj) {
-      let r = true;
-      if (obj.pageName && obj.pageName !== this.pageName) {
-        log("trace", "Uib:_msgRcvdEvents:_uib", "Not for this page")();
-        r = false;
-      }
-      if (obj.clientId && obj.clientId !== this.clientId) {
-        log("trace", "Uib:_msgRcvdEvents:_uib", "Not for this clientId")();
-        r = false;
-      }
-      if (obj.tabId && obj.tabId !== this.tabId) {
-        log("trace", "Uib:_msgRcvdEvents:_uib", "Not for this tabId")();
-        r = false;
-      }
-      return r;
-    }
-    // Handle received messages - Process some msgs internally, emit specific events on document that make it easy for coders to use
-    _msgRcvdEvents(msg) {
-      this._dispatchCustomEvent("uibuilder:stdMsgReceived", msg);
-      if (msg.topic)
-        this._dispatchCustomEvent(`uibuilder:msg:topic:${msg.topic}`, msg);
-      if (msg._uib) {
-        if (!this._forThis(msg._uib))
-          return;
-        if (msg._uib.reload === true) {
-          log("trace", "Uib:_msgRcvdEvents:_uib:reload", "reloading")();
-          location.reload();
-          return;
-        }
-        if (msg._uib.command) {
-          this._uibCommand(msg);
-          return;
-        }
-        if (msg._uib.componentRef === "globalNotification") {
-          _ui.showDialog("notify", msg._uib.options, msg);
-        }
-        if (msg._uib.componentRef === "globalAlert") {
-          _ui.showDialog("alert", msg._uib.options, msg);
-        }
-      }
-      if (msg._ui) {
-        if (!this._forThis(msg._ui))
-          return;
-        log("trace", "Uib:_msgRcvdEvents:_ui", "Calling _uiManager")();
-        this._dispatchCustomEvent("uibuilder:msg:_ui", msg);
-        _ui._uiManager(msg);
-      }
-    }
-    // --- end of _msgRcvdEvents ---
-    /** Callback handler for messages from Node-RED
-     * NOTE: `this` is the class here rather the `socket` as would be normal since we bind the correct `this` in the call.
-     *       Use this._socket if needing reference to the socket.
-     * @callback ioSetupFromServer Called from ioSetup/this._socket.on(this.#ioChannels.server, this.stdMsgFromServer.bind(this))
-     * @param {object} receivedMsg The msg object from Node-RED
-     * @this Uib
-     */
-    _stdMsgFromServer(receivedMsg) {
-      receivedMsg = makeMeAnObject(receivedMsg, "payload");
-      if (receivedMsg._uib && !this._forThis(receivedMsg._uib))
-        return;
-      if (receivedMsg._ui && !this._forThis(receivedMsg._ui))
-        return;
-      this._checkTimestamp(receivedMsg);
-      this.set("msgsReceived", ++this.msgsReceived);
-      this._msgRcvdEvents(receivedMsg);
-      if (!("_ui" in receivedMsg && !("payload" in receivedMsg))) {
-        this.set("msg", receivedMsg);
-      }
-      log("info", "Uib:ioSetup:stdMsgFromServer", `Channel '${this._ioChannels.server}'. Received msg #${this.msgsReceived}.`, receivedMsg)();
-    }
-    // -- End of websocket receive DATA msg from Node-RED -- //
-    /** Handles original control msgs (not to be confused with "new" msg._uib controls)
-     * @param {*} receivedCtrlMsg The msg received on the socket.io control channel
-     */
-    _ctrlMsgFromServer(receivedCtrlMsg) {
-      if (receivedCtrlMsg === null) {
-        receivedCtrlMsg = {};
-      } else if (typeof receivedCtrlMsg !== "object") {
-        const msg = {};
-        msg["uibuilderCtrl:" + this._ioChannels.control] = receivedCtrlMsg;
-        receivedCtrlMsg = msg;
-      }
-      this._checkTimestamp(receivedCtrlMsg);
-      this.set("ctrlMsg", receivedCtrlMsg);
-      this.set("msgsCtrlReceived", ++this.msgsCtrlReceived);
-      log("trace", "Uib:ioSetup:_ctrlMsgFromServer", `Channel '${this._ioChannels.control}'. Received control msg #${this.msgsCtrlReceived}`, receivedCtrlMsg)();
-      switch (receivedCtrlMsg.uibuilderCtrl) {
-        case "shutdown": {
-          log("info", `Uib:ioSetup:${this._ioChannels.control}`, '\u274C Received "shutdown" from server')();
-          this.set("serverShutdown", void 0);
-          break;
-        }
-        case "client connect": {
-          log("trace", `Uib:ioSetup:${this._ioChannels.control}`, 'Received "client connect" from server')();
-          log("info", `Uib:ioSetup:${this._ioChannels.control}`, `\u2705 Server connected. Version: ${receivedCtrlMsg.version}
-Server time: ${receivedCtrlMsg.serverTimestamp}, Sever time offset: ${this.serverTimeOffset} hours`)();
-          if (!_a._meta.version.startsWith(receivedCtrlMsg.version.split("-")[0])) {
-            log("warn", `Uib:ioSetup:${this._ioChannels.control}`, `Server version (${receivedCtrlMsg.version}) not the same as the client version (${_a._meta.version})`)();
-          }
-          if (this.autoSendReady === true) {
-            log("trace", `Uib:ioSetup:${this._ioChannels.control}/client connect`, "Auto-sending ready-for-content/replay msg to server");
-          }
-          break;
-        }
-        default: {
-          log("trace", `uibuilderfe:ioSetup:${this._ioChannels.control}`, `Received ${receivedCtrlMsg.uibuilderCtrl} from server`);
-        }
-      }
-    }
-    // -- End of websocket receive CONTROL msg from Node-RED -- //
-    /** Send log text to uibuilder's beacon endpoint (works even if socket.io not connected)
-     * @param {string} txtToSend Text string to send
-     * @param {string|undefined} logLevel Log level to use. If not supplied, will default to debug
-     */
-    beaconLog(txtToSend, logLevel2) {
-      if (!logLevel2)
-        logLevel2 = "debug";
-      navigator.sendBeacon("./_clientLog", `${logLevel2}::${txtToSend}`);
+    send(msg, originator = "") {
+      this._send(msg, this._ioChannels.client, originator);
     }
-    /** Send log info back to Node-RED over uibuilder's websocket control output (Port #2)
-     * @param {...*} arguments All arguments passed to the function are added to the msg.payload
+    /** Send a control msg to NR
+     * @param {object} msg Message to send
      */
-    logToServer() {
-      this.sendCtrl({
-        uibuilderCtrl: "client log message",
-        payload: arguments,
-        // "version":"6.1.0-iife.min",
-        _socketId: this._socket.id,
-        // "ip":"::1",
-        clientId: this.clientId,
-        tabId: this.tabId,
-        // "url":"esp-test",
-        pageName: this.pageName,
-        connections: this.connectedNum,
-        lastNavType: this.lastNavType
-      });
+    sendCtrl(msg) {
+      this._send(msg, this._ioChannels.control);
     }
     //#endregion -------- ------------ -------- //
     //#region ------- Socket.IO -------- //
@@ -6500,12 +6557,17 @@ ioPath: ${this.ioPath}`)();
   if (!window["$"]) {
     window["$"] = window["uibuilder"].$;
   } else {
-    log("warn", "uibuilder.module.js", "Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` instead.");
+    log("warn", "uibuilder.module.js", "Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` or `uib.$` instead.");
   }
   if (!window["$$"]) {
     window["$$"] = window["uibuilder"].$$;
   } else {
-    log("warn", "uibuilder.module.js", "Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` instead.");
+    log("warn", "uibuilder.module.js", "Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` or `uib.$$` instead.");
+  }
+  if (!window["$ui"]) {
+    window["$ui"] = window["uibuilder"].$ui;
+  } else {
+    log("warn", "uibuilder.module.js", "Cannot allocate the global `$ui`, it is already in use. Use `uibuilder.$ui` or `uib.$ui` instead.");
   }
   var uibuilder_module_default = uibuilder;
   uibuilder.start();
diff --git a/front-end/uibuilder.iife.min.js b/front-end/uibuilder.iife.min.js
index be744982..3fe5ef4a 100644
--- a/front-end/uibuilder.iife.min.js
+++ b/front-end/uibuilder.iife.min.js
@@ -1,2 +1,2 @@
-(()=>{var _t=Object.create;var le=Object.defineProperty;var Et=Object.getOwnPropertyDescriptor;var Ct=Object.getOwnPropertyNames;var St=Object.getPrototypeOf,xt=Object.prototype.hasOwnProperty;var Nt=(s,e,t)=>e in s?le(s,e,{enumerable:!0,configurable:!0,writable:!0,value:t}):s[e]=t;var De=(s=>typeof require<"u"?require:typeof Proxy<"u"?new Proxy(s,{get:(e,t)=>(typeof require<"u"?require:e)[t]}):s)(function(s){if(typeof require<"u")return require.apply(this,arguments);throw Error('Dynamic require of "'+s+'" is not supported')});var Ot=(s,e)=>()=>(e||s((e={exports:{}}).exports,e),e.exports),Rt=(s,e)=>{for(var t in e)le(s,t,{get:e[t],enumerable:!0})},At=(s,e,t,i)=>{if(e&&typeof e=="object"||typeof e=="function")for(let r of Ct(e))!xt.call(s,r)&&r!==t&&le(s,r,{get:()=>e[r],enumerable:!(i=Et(e,r))||i.enumerable});return s};var Ee=(s,e,t)=>(t=s!=null?_t(St(s)):{},At(e||!s||!s.__esModule?le(t,"default",{value:s,enumerable:!0}):t,s));var h=(s,e,t)=>(Nt(s,typeof e!="symbol"?e+"":e,t),t),Be=(s,e,t)=>{if(!e.has(s))throw TypeError("Cannot "+t)};var u=(s,e,t)=>(Be(s,e,"read from private field"),t?t.call(s):e.get(s)),C=(s,e,t)=>{if(e.has(s))throw TypeError("Cannot add the same private member more than once");e instanceof WeakSet?e.add(s):e.set(s,t)},A=(s,e,t,i)=>(Be(s,e,"write to private field"),i?i.call(s,t):e.set(s,t),t);var qe=Ot((ii,Pe)=>{var d,Tt=(d=class{constructor(e,t,i){h(this,"version","6.8.0-src");h(this,"sanitiseExtraTags",["uib-var"]);h(this,"sanitiseExtraAttribs",["variable","report","undefined"]);h(this,"window");if(e)this.window=e;else throw new Error("Ui:constructor. Current environment does not include `window`, UI functions cannot be used.");this.document=this.window.document,t?d.log=t:d.log=function(){return function(){}},i?this.syntaxHighlight=i:this.syntaxHighlight=function(){}}_showNotification(e){e.topic&&!e.title&&(e.title=e.topic),e.title||(e.title="uibuilder notification"),e.payload&&!e.body&&(e.body=e.payload),e.body||(e.body=" No message given.");try{let t=new Notification(e.title,e);return new Promise((i,r)=>{t.addEventListener("close",n=>{n.currentTarget.userAction="close",i(n)}),t.addEventListener("click",n=>{n.currentTarget.userAction="click",i(n)}),t.addEventListener("error",n=>{n.currentTarget.userAction="error",r(n)})})}catch{return Promise.reject(new Error("Browser refused to create a Notification"))}}_uiAdd(e,t){d.log("trace","Ui:_uiManager:add","Starting _uiAdd")(),e.components.forEach((i,r)=>{d.log("trace","Ui:_uiAdd:components-forEach:".concat(r),"Component to add: ",i)();let n;switch(i.type){case"html":{i.ns="html",n=this.document.createElement("div");break}case"svg":{i.ns="svg",n=this.document.createElementNS("http://www.w3.org/2000/svg","svg");break}default:{i.ns="dom",n=this.document.createElement(i.type);break}}!i.slot&&e.payload&&(i.slot=e.payload),this._uiComposeComponent(n,i);let o;i.parentEl?o=i.parentEl:e.parentEl?o=e.parentEl:i.parent?o=this.document.querySelector(i.parent):e.parent&&(o=this.document.querySelector(e.parent)),o||(d.log("info","Ui:_uiAdd","No parent found, adding to body")(),o=this.document.querySelector("body")),i.position&&i.position==="first"?o.insertBefore(n,o.firstChild):i.position&&Number.isInteger(Number(i.position))?o.insertBefore(n,o.children[i.position]):o.appendChild(n),i.components&&this._uiExtendEl(n,i.components,i.ns)})}_uiComposeComponent(e,t){t.attributes&&Object.keys(t.attributes).forEach(i=>{i==="class"&&Array.isArray(t.attributes[i])&&t.attributes[i].join(" "),i==="value"&&(e.value=t.attributes[i]),i.startsWith("xlink:")?e.setAttributeNS("http://www.w3.org/1999/xlink",i,t.attributes[i]):e.setAttribute(i,t.attributes[i])}),t.id&&e.setAttribute("id",t.id),t.type==="svg"&&(e.setAttributeNS("http://www.w3.org/2000/xmlns/","xmlns","http://www.w3.org/2000/svg"),e.setAttributeNS("http://www.w3.org/2000/xmlns/","xmlns:xlink","http://www.w3.org/1999/xlink")),t.events&&Object.keys(t.events).forEach(i=>{i.toLowerCase==="onclick"&&(i="click");try{e.addEventListener(i,r=>{new Function("evt","".concat(t.events[i],"(evt)"))(r)})}catch(r){d.log("error","Ui:_uiComposeComponent","Add event '".concat(i,"' for element '").concat(t.type,"': Cannot add event handler. 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BlobConstructor]",Yt=typeof File=="function"||typeof File<"u"&&pt.call(File)==="[object FileConstructor]";function re(s){return Kt&&(s instanceof ArrayBuffer||Jt(s))||zt&&s instanceof Blob||Yt&&s instanceof File}function se(s,e){if(!s||typeof s!="object")return!1;if(Array.isArray(s)){for(let t=0,i=s.length;t<i;t++)if(se(s[t]))return!0;return!1}if(re(s))return!0;if(s.toJSON&&typeof s.toJSON=="function"&&arguments.length===1)return se(s.toJSON(),!0);for(let t in s)if(Object.prototype.hasOwnProperty.call(s,t)&&se(s[t]))return!0;return!1}function mt(s){let e=[],t=s.data,i=s;return i.data=Ae(t,e),i.attachments=e.length,{packet:i,buffers:e}}function Ae(s,e){if(!s)return s;if(re(s)){let t={_placeholder:!0,num:e.length};return e.push(s),t}else if(Array.isArray(s)){let t=new Array(s.length);for(let i=0;i<s.length;i++)t[i]=Ae(s[i],e);return t}else if(typeof s=="object"&&!(s instanceof Date)){let t={};for(let i in s)Object.prototype.hasOwnProperty.call(s,i)&&(t[i]=Ae(s[i],e));return t}return s}function gt(s,e){return s.data=Te(s.data,e),delete s.attachments,s}function Te(s,e){if(!s)return s;if(s&&s._placeholder===!0){if(typeof s.num=="number"&&s.num>=0&&s.num<e.length)return e[s.num];throw new Error("illegal attachments")}else if(Array.isArray(s))for(let t=0;t<s.length;t++)s[t]=Te(s[t],e);else if(typeof s=="object")for(let t in s)Object.prototype.hasOwnProperty.call(s,t)&&(s[t]=Te(s[t],e));return s}var Gt=["connect","connect_error","disconnect","disconnecting","newListener","removeListener"],bt=5,p;(function(s){s[s.CONNECT=0]="CONNECT",s[s.DISCONNECT=1]="DISCONNECT",s[s.EVENT=2]="EVENT",s[s.ACK=3]="ACK",s[s.CONNECT_ERROR=4]="CONNECT_ERROR",s[s.BINARY_EVENT=5]="BINARY_EVENT",s[s.BINARY_ACK=6]="BINARY_ACK"})(p||(p={}));var $e=class{constructor(e){this.replacer=e}encode(e){return(e.type===p.EVENT||e.type===p.ACK)&&se(e)?this.encodeAsBinary({type:e.type===p.EVENT?p.BINARY_EVENT:p.BINARY_ACK,nsp:e.nsp,data:e.data,id:e.id}):[this.encodeAsString(e)]}encodeAsString(e){let t=""+e.type;return(e.type===p.BINARY_EVENT||e.type===p.BINARY_ACK)&&(t+=e.attachments+"-"),e.nsp&&e.nsp!=="/"&&(t+=e.nsp+","),e.id!=null&&(t+=e.id),e.data!=null&&(t+=JSON.stringify(e.data,this.replacer)),t}encodeAsBinary(e){let t=mt(e),i=this.encodeAsString(t.packet),r=t.buffers;return r.unshift(i),r}};function yt(s){return Object.prototype.toString.call(s)==="[object Object]"}var Le=class s extends y{constructor(e){super(),this.reviver=e}add(e){let t;if(typeof e=="string"){if(this.reconstructor)throw new Error("got plaintext data when reconstructing a packet");t=this.decodeString(e);let i=t.type===p.BINARY_EVENT;i||t.type===p.BINARY_ACK?(t.type=i?p.EVENT:p.ACK,this.reconstructor=new Ue(t),t.attachments===0&&super.emitReserved("decoded",t)):super.emitReserved("decoded",t)}else if(re(e)||e.base64)if(this.reconstructor)t=this.reconstructor.takeBinaryData(e),t&&(this.reconstructor=null,super.emitReserved("decoded",t));else throw new Error("got binary data when not reconstructing a packet");else throw new Error("Unknown type: "+e)}decodeString(e){let t=0,i={type:Number(e.charAt(0))};if(p[i.type]===void 0)throw new Error("unknown packet type "+i.type);if(i.type===p.BINARY_EVENT||i.type===p.BINARY_ACK){let n=t+1;for(;e.charAt(++t)!=="-"&&t!=e.length;);let o=e.substring(n,t);if(o!=Number(o)||e.charAt(t)!=="-")throw new Error("Illegal attachments");i.attachments=Number(o)}if(e.charAt(t+1)==="/"){let n=t+1;for(;++t&&!(e.charAt(t)===","||t===e.length););i.nsp=e.substring(n,t)}else i.nsp="/";let r=e.charAt(t+1);if(r!==""&&Number(r)==r){let n=t+1;for(;++t;){let o=e.charAt(t);if(o==null||Number(o)!=o){--t;break}if(t===e.length)break}i.id=Number(e.substring(n,t+1))}if(e.charAt(++t)){let n=this.tryParse(e.substr(t));if(s.isPayloadValid(i.type,n))i.data=n;else throw new Error("invalid payload")}return i}tryParse(e){try{return JSON.parse(e,this.reviver)}catch{return!1}}static isPayloadValid(e,t){switch(e){case p.CONNECT:return yt(t);case p.DISCONNECT:return t===void 0;case p.CONNECT_ERROR:return typeof t=="string"||yt(t);case p.EVENT:case p.BINARY_EVENT:return Array.isArray(t)&&(typeof t[0]=="number"||typeof t[0]=="string"&&Gt.indexOf(t[0])===-1);case p.ACK:case p.BINARY_ACK:return Array.isArray(t)}}destroy(){this.reconstructor&&(this.reconstructor.finishedReconstruction(),this.reconstructor=null)}},Ue=class{constructor(e){this.packet=e,this.buffers=[],this.reconPack=e}takeBinaryData(e){if(this.buffers.push(e),this.buffers.length===this.reconPack.attachments){let t=gt(this.reconPack,this.buffers);return this.finishedReconstruction(),t}return null}finishedReconstruction(){this.reconPack=null,this.buffers=[]}};function S(s,e,t){return s.on(e,t),function(){s.off(e,t)}}var Xt=Object.freeze({connect:1,connect_error:1,disconnect:1,disconnecting:1,newListener:1,removeListener:1}),W=class extends y{constructor(e,t,i){super(),this.connected=!1,this.recovered=!1,this.receiveBuffer=[],this.sendBuffer=[],this._queue=[],this._queueSeq=0,this.ids=0,this.acks={},this.flags={},this.io=e,this.nsp=t,i&&i.auth&&(this.auth=i.auth),this._opts=Object.assign({},i),this.io._autoConnect&&this.open()}get disconnected(){return!this.connected}subEvents(){if(this.subs)return;let e=this.io;this.subs=[S(e,"open",this.onopen.bind(this)),S(e,"packet",this.onpacket.bind(this)),S(e,"error",this.onerror.bind(this)),S(e,"close",this.onclose.bind(this))]}get active(){return!!this.subs}connect(){return this.connected?this:(this.subEvents(),this.io._reconnecting||this.io.open(),this.io._readyState==="open"&&this.onopen(),this)}open(){return this.connect()}send(...e){return e.unshift("message"),this.emit.apply(this,e),this}emit(e,...t){if(Xt.hasOwnProperty(e))throw new Error('"'+e.toString()+'" is a reserved event name');if(t.unshift(e),this._opts.retries&&!this.flags.fromQueue&&!this.flags.volatile)return this._addToQueue(t),this;let i={type:p.EVENT,data:t};if(i.options={},i.options.compress=this.flags.compress!==!1,typeof t[t.length-1]=="function"){let o=this.ids++,c=t.pop();this._registerAckCallback(o,c),i.id=o}let r=this.io.engine&&this.io.engine.transport&&this.io.engine.transport.writable;return this.flags.volatile&&(!r||!this.connected)||(this.connected?(this.notifyOutgoingListeners(i),this.packet(i)):this.sendBuffer.push(i)),this.flags={},this}_registerAckCallback(e,t){var i;let r=(i=this.flags.timeout)!==null&&i!==void 0?i:this._opts.ackTimeout;if(r===void 0){this.acks[e]=t;return}let n=this.io.setTimeoutFn(()=>{delete this.acks[e];for(let o=0;o<this.sendBuffer.length;o++)this.sendBuffer[o].id===e&&this.sendBuffer.splice(o,1);t.call(this,new Error("operation has timed out"))},r);this.acks[e]=(...o)=>{this.io.clearTimeoutFn(n),t.apply(this,[null,...o])}}emitWithAck(e,...t){let i=this.flags.timeout!==void 0||this._opts.ackTimeout!==void 0;return new Promise((r,n)=>{t.push((o,c)=>i?o?n(o):r(c):r(o)),this.emit(e,...t)})}_addToQueue(e){let t;typeof e[e.length-1]=="function"&&(t=e.pop());let i={id:this._queueSeq++,tryCount:0,pending:!1,args:e,flags:Object.assign({fromQueue:!0},this.flags)};e.push((r,...n)=>i!==this._queue[0]?void 0:(r!==null?i.tryCount>this._opts.retries&&(this._queue.shift(),t&&t(r)):(this._queue.shift(),t&&t(null,...n)),i.pending=!1,this._drainQueue())),this._queue.push(i),this._drainQueue()}_drainQueue(e=!1){if(!this.connected||this._queue.length===0)return;let t=this._queue[0];t.pending&&!e||(t.pending=!0,t.tryCount++,this.flags=t.flags,this.emit.apply(this,t.args))}packet(e){e.nsp=this.nsp,this.io._packet(e)}onopen(){typeof this.auth=="function"?this.auth(e=>{this._sendConnectPacket(e)}):this._sendConnectPacket(this.auth)}_sendConnectPacket(e){this.packet({type:p.CONNECT,data:this._pid?Object.assign({pid:this._pid,offset:this._lastOffset},e):e})}onerror(e){this.connected||this.emitReserved("connect_error",e)}onclose(e,t){this.connected=!1,delete this.id,this.emitReserved("disconnect",e,t)}onpacket(e){if(e.nsp===this.nsp)switch(e.type){case p.CONNECT:e.data&&e.data.sid?this.onconnect(e.data.sid,e.data.pid):this.emitReserved("connect_error",new Error("It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)"));break;case p.EVENT:case p.BINARY_EVENT:this.onevent(e);break;case p.ACK:case p.BINARY_ACK:this.onack(e);break;case p.DISCONNECT:this.ondisconnect();break;case p.CONNECT_ERROR:this.destroy();let i=new Error(e.data.message);i.data=e.data.data,this.emitReserved("connect_error",i);break}}onevent(e){let t=e.data||[];e.id!=null&&t.push(this.ack(e.id)),this.connected?this.emitEvent(t):this.receiveBuffer.push(Object.freeze(t))}emitEvent(e){if(this._anyListeners&&this._anyListeners.length){let t=this._anyListeners.slice();for(let i of t)i.apply(this,e)}super.emit.apply(this,e),this._pid&&e.length&&typeof e[e.length-1]=="string"&&(this._lastOffset=e[e.length-1])}ack(e){let t=this,i=!1;return function(...r){i||(i=!0,t.packet({type:p.ACK,id:e,data:r}))}}onack(e){let t=this.acks[e.id];typeof t=="function"&&(t.apply(this,e.data),delete 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0||t.setMin(e),this)}randomizationFactor(e){var t;return e===void 0?this._randomizationFactor:(this._randomizationFactor=e,(t=this.backoff)===null||t===void 0||t.setJitter(e),this)}reconnectionDelayMax(e){var t;return e===void 0?this._reconnectionDelayMax:(this._reconnectionDelayMax=e,(t=this.backoff)===null||t===void 0||t.setMax(e),this)}timeout(e){return arguments.length?(this._timeout=e,this):this._timeout}maybeReconnectOnOpen(){!this._reconnecting&&this._reconnection&&this.backoff.attempts===0&&this.reconnect()}open(e){if(~this._readyState.indexOf("open"))return this;this.engine=new B(this.uri,this.opts);let t=this.engine,i=this;this._readyState="opening",this.skipReconnect=!1;let r=S(t,"open",function(){i.onopen(),e&&e()}),n=c=>{this.cleanup(),this._readyState="closed",this.emitReserved("error",c),e?e(c):this.maybeReconnectOnOpen()},o=S(t,"error",n);if(this._timeout!==!1){let c=this._timeout,l=this.setTimeoutFn(()=>{r(),n(new 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i=0;i<t.length;i++)this.engine.write(t[i],e.options)}cleanup(){this.subs.forEach(e=>e()),this.subs.length=0,this.decoder.destroy()}_close(){this.skipReconnect=!0,this._reconnecting=!1,this.onclose("forced close"),this.engine&&this.engine.close()}disconnect(){return this._close()}onclose(e,t){this.cleanup(),this.backoff.reset(),this._readyState="closed",this.emitReserved("close",e,t),this._reconnection&&!this.skipReconnect&&this.reconnect()}reconnect(){if(this._reconnecting||this.skipReconnect)return this;let e=this;if(this.backoff.attempts>=this._reconnectionAttempts)this.backoff.reset(),this.emitReserved("reconnect_failed"),this._reconnecting=!1;else{let t=this.backoff.duration();this._reconnecting=!0;let i=this.setTimeoutFn(()=>{e.skipReconnect||(this.emitReserved("reconnect_attempt",e.backoff.attempts),!e.skipReconnect&&e.open(r=>{r?(e._reconnecting=!1,e.reconnect(),this.emitReserved("reconnect_error",r)):e.onreconnect()}))},t);this.opts.autoUnref&&i.unref(),this.subs.push(()=>{this.clearTimeoutFn(i)})}}onreconnect(){let e=this.backoff.attempts;this._reconnecting=!1,this.backoff.reset(),this.emitReserved("reconnect",e)}};var ne={};function J(s,e){typeof s=="object"&&(e=s,s=void 0),e=e||{};let t=ft(s,e.path||"/socket.io"),i=t.source,r=t.id,n=t.path,o=ne[r]&&n in ne[r].nsps,c=e.forceNew||e["force new connection"]||e.multiplex===!1||o,l;return c?l=new K(i,e):(ne[r]||(ne[r]=new K(i,e)),l=ne[r]),t.query&&!e.query&&(e.query=t.queryKey),l.socket(t.path,e)}Object.assign(J,{Manager:K,Socket:W,io:J,connect:J});var wt="6.8.0-iife.min",Qt=!/param/.test(function(s){}),I=Qt?0:1,R={error:{css:"background: red; color: black;",txtCss:"color: red; ",pre:"\u26D4 ",console:"error"},warn:{css:"background: 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e=this.getWritablePackets();this.transport.send(e),this.prevBufferLen=e.length,this.emitReserved("flush")}}getWritablePackets(){if(!(this.maxPayload&&this.transport.name==="polling"&&this.writeBuffer.length>1))return this.writeBuffer;let t=1;for(let i=0;i<this.writeBuffer.length;i++){let r=this.writeBuffer[i].data;if(r&&(t+=tt(r)),i>0&&t>this.maxPayload)return this.writeBuffer.slice(0,i);t+=2}return this.writeBuffer}write(e,t,i){return this.sendPacket("message",e,t,i),this}send(e,t,i){return this.sendPacket("message",e,t,i),this}sendPacket(e,t,i,r){if(typeof t=="function"&&(r=t,t=void 0),typeof i=="function"&&(r=i,i=null),this.readyState==="closing"||this.readyState==="closed")return;i=i||{},i.compress=i.compress!==!1;let n={type:e,data:t,options:i};this.emitReserved("packetCreate",n),this.writeBuffer.push(n),r&&this.once("flush",r),this.flush()}close(){let e=()=>{this.onClose("forced 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t=[],i=0,r=e.length;for(;i<r;i++)~this.transports.indexOf(e[i])&&t.push(e[i]);return t}};B.protocol=xe;var fs=B.protocol;function ft(s,e="",t){let i=s;t=t||typeof location<"u"&&location,s==null&&(s=t.protocol+"//"+t.host),typeof s=="string"&&(s.charAt(0)==="/"&&(s.charAt(1)==="/"?s=t.protocol+s:s=t.host+s),/^(https?|wss?):\/\//.test(s)||(typeof t<"u"?s=t.protocol+"//"+s:s="https://"+s),i=j(s)),i.port||(/^(http|ws)$/.test(i.protocol)?i.port="80":/^(http|ws)s$/.test(i.protocol)&&(i.port="443")),i.path=i.path||"/";let n=i.host.indexOf(":")!==-1?"["+i.host+"]":i.host;return i.id=i.protocol+"://"+n+":"+i.port+e,i.href=i.protocol+"://"+n+(t&&t.port===i.port?"":":"+i.port),i}var Ie={};Rt(Ie,{Decoder:()=>Le,Encoder:()=>Te,PacketType:()=>p,protocol:()=>bt});var Kt=typeof ArrayBuffer=="function",Jt=s=>typeof ArrayBuffer.isView=="function"?ArrayBuffer.isView(s):s.buffer instanceof ArrayBuffer,pt=Object.prototype.toString,zt=typeof Blob=="function"||typeof Blob<"u"&&pt.call(Blob)==="[object BlobConstructor]",Yt=typeof File=="function"||typeof File<"u"&&pt.call(File)==="[object FileConstructor]";function re(s){return Kt&&(s instanceof ArrayBuffer||Jt(s))||zt&&s instanceof Blob||Yt&&s instanceof File}function se(s,e){if(!s||typeof s!="object")return!1;if(Array.isArray(s)){for(let t=0,i=s.length;t<i;t++)if(se(s[t]))return!0;return!1}if(re(s))return!0;if(s.toJSON&&typeof s.toJSON=="function"&&arguments.length===1)return se(s.toJSON(),!0);for(let t in s)if(Object.prototype.hasOwnProperty.call(s,t)&&se(s[t]))return!0;return!1}function mt(s){let e=[],t=s.data,i=s;return i.data=Ae(t,e),i.attachments=e.length,{packet:i,buffers:e}}function Ae(s,e){if(!s)return s;if(re(s)){let t={_placeholder:!0,num:e.length};return e.push(s),t}else if(Array.isArray(s)){let t=new Array(s.length);for(let i=0;i<s.length;i++)t[i]=Ae(s[i],e);return t}else if(typeof s=="object"&&!(s instanceof Date)){let t={};for(let i in s)Object.prototype.hasOwnProperty.call(s,i)&&(t[i]=Ae(s[i],e));return t}return s}function gt(s,e){return s.data=$e(s.data,e),delete s.attachments,s}function $e(s,e){if(!s)return s;if(s&&s._placeholder===!0){if(typeof s.num=="number"&&s.num>=0&&s.num<e.length)return e[s.num];throw new Error("illegal attachments")}else if(Array.isArray(s))for(let t=0;t<s.length;t++)s[t]=$e(s[t],e);else if(typeof s=="object")for(let t in s)Object.prototype.hasOwnProperty.call(s,t)&&(s[t]=$e(s[t],e));return s}var Gt=["connect","connect_error","disconnect","disconnecting","newListener","removeListener"],bt=5,p;(function(s){s[s.CONNECT=0]="CONNECT",s[s.DISCONNECT=1]="DISCONNECT",s[s.EVENT=2]="EVENT",s[s.ACK=3]="ACK",s[s.CONNECT_ERROR=4]="CONNECT_ERROR",s[s.BINARY_EVENT=5]="BINARY_EVENT",s[s.BINARY_ACK=6]="BINARY_ACK"})(p||(p={}));var Te=class{constructor(e){this.replacer=e}encode(e){return(e.type===p.EVENT||e.type===p.ACK)&&se(e)?this.encodeAsBinary({type:e.type===p.EVENT?p.BINARY_EVENT:p.BINARY_ACK,nsp:e.nsp,data:e.data,id:e.id}):[this.encodeAsString(e)]}encodeAsString(e){let t=""+e.type;return(e.type===p.BINARY_EVENT||e.type===p.BINARY_ACK)&&(t+=e.attachments+"-"),e.nsp&&e.nsp!=="/"&&(t+=e.nsp+","),e.id!=null&&(t+=e.id),e.data!=null&&(t+=JSON.stringify(e.data,this.replacer)),t}encodeAsBinary(e){let t=mt(e),i=this.encodeAsString(t.packet),r=t.buffers;return r.unshift(i),r}};function yt(s){return Object.prototype.toString.call(s)==="[object Object]"}var Le=class s extends b{constructor(e){super(),this.reviver=e}add(e){let t;if(typeof e=="string"){if(this.reconstructor)throw new Error("got plaintext data when reconstructing a packet");t=this.decodeString(e);let i=t.type===p.BINARY_EVENT;i||t.type===p.BINARY_ACK?(t.type=i?p.EVENT:p.ACK,this.reconstructor=new Ue(t),t.attachments===0&&super.emitReserved("decoded",t)):super.emitReserved("decoded",t)}else if(re(e)||e.base64)if(this.reconstructor)t=this.reconstructor.takeBinaryData(e),t&&(this.reconstructor=null,super.emitReserved("decoded",t));else throw new Error("got binary data when not reconstructing a packet");else throw new Error("Unknown type: "+e)}decodeString(e){let t=0,i={type:Number(e.charAt(0))};if(p[i.type]===void 0)throw new Error("unknown packet type "+i.type);if(i.type===p.BINARY_EVENT||i.type===p.BINARY_ACK){let n=t+1;for(;e.charAt(++t)!=="-"&&t!=e.length;);let o=e.substring(n,t);if(o!=Number(o)||e.charAt(t)!=="-")throw new Error("Illegal attachments");i.attachments=Number(o)}if(e.charAt(t+1)==="/"){let n=t+1;for(;++t&&!(e.charAt(t)===","||t===e.length););i.nsp=e.substring(n,t)}else i.nsp="/";let r=e.charAt(t+1);if(r!==""&&Number(r)==r){let n=t+1;for(;++t;){let o=e.charAt(t);if(o==null||Number(o)!=o){--t;break}if(t===e.length)break}i.id=Number(e.substring(n,t+1))}if(e.charAt(++t)){let n=this.tryParse(e.substr(t));if(s.isPayloadValid(i.type,n))i.data=n;else throw new Error("invalid payload")}return i}tryParse(e){try{return JSON.parse(e,this.reviver)}catch{return!1}}static isPayloadValid(e,t){switch(e){case p.CONNECT:return yt(t);case p.DISCONNECT:return t===void 0;case p.CONNECT_ERROR:return typeof t=="string"||yt(t);case p.EVENT:case p.BINARY_EVENT:return Array.isArray(t)&&(typeof t[0]=="number"||typeof t[0]=="string"&&Gt.indexOf(t[0])===-1);case p.ACK:case p.BINARY_ACK:return Array.isArray(t)}}destroy(){this.reconstructor&&(this.reconstructor.finishedReconstruction(),this.reconstructor=null)}},Ue=class{constructor(e){this.packet=e,this.buffers=[],this.reconPack=e}takeBinaryData(e){if(this.buffers.push(e),this.buffers.length===this.reconPack.attachments){let t=gt(this.reconPack,this.buffers);return this.finishedReconstruction(),t}return null}finishedReconstruction(){this.reconPack=null,this.buffers=[]}};function S(s,e,t){return s.on(e,t),function(){s.off(e,t)}}var Xt=Object.freeze({connect:1,connect_error:1,disconnect:1,disconnecting:1,newListener:1,removeListener:1}),W=class extends b{constructor(e,t,i){super(),this.connected=!1,this.recovered=!1,this.receiveBuffer=[],this.sendBuffer=[],this._queue=[],this._queueSeq=0,this.ids=0,this.acks={},this.flags={},this.io=e,this.nsp=t,i&&i.auth&&(this.auth=i.auth),this._opts=Object.assign({},i),this.io._autoConnect&&this.open()}get disconnected(){return!this.connected}subEvents(){if(this.subs)return;let e=this.io;this.subs=[S(e,"open",this.onopen.bind(this)),S(e,"packet",this.onpacket.bind(this)),S(e,"error",this.onerror.bind(this)),S(e,"close",this.onclose.bind(this))]}get active(){return!!this.subs}connect(){return this.connected?this:(this.subEvents(),this.io._reconnecting||this.io.open(),this.io._readyState==="open"&&this.onopen(),this)}open(){return this.connect()}send(...e){return e.unshift("message"),this.emit.apply(this,e),this}emit(e,...t){if(Xt.hasOwnProperty(e))throw new Error('"'+e.toString()+'" is a reserved event name');if(t.unshift(e),this._opts.retries&&!this.flags.fromQueue&&!this.flags.volatile)return this._addToQueue(t),this;let i={type:p.EVENT,data:t};if(i.options={},i.options.compress=this.flags.compress!==!1,typeof t[t.length-1]=="function"){let o=this.ids++,c=t.pop();this._registerAckCallback(o,c),i.id=o}let r=this.io.engine&&this.io.engine.transport&&this.io.engine.transport.writable;return this.flags.volatile&&(!r||!this.connected)||(this.connected?(this.notifyOutgoingListeners(i),this.packet(i)):this.sendBuffer.push(i)),this.flags={},this}_registerAckCallback(e,t){var i;let r=(i=this.flags.timeout)!==null&&i!==void 0?i:this._opts.ackTimeout;if(r===void 0){this.acks[e]=t;return}let n=this.io.setTimeoutFn(()=>{delete this.acks[e];for(let o=0;o<this.sendBuffer.length;o++)this.sendBuffer[o].id===e&&this.sendBuffer.splice(o,1);t.call(this,new Error("operation has timed out"))},r);this.acks[e]=(...o)=>{this.io.clearTimeoutFn(n),t.apply(this,[null,...o])}}emitWithAck(e,...t){let i=this.flags.timeout!==void 0||this._opts.ackTimeout!==void 0;return new Promise((r,n)=>{t.push((o,c)=>i?o?n(o):r(c):r(o)),this.emit(e,...t)})}_addToQueue(e){let t;typeof e[e.length-1]=="function"&&(t=e.pop());let i={id:this._queueSeq++,tryCount:0,pending:!1,args:e,flags:Object.assign({fromQueue:!0},this.flags)};e.push((r,...n)=>i!==this._queue[0]?void 0:(r!==null?i.tryCount>this._opts.retries&&(this._queue.shift(),t&&t(r)):(this._queue.shift(),t&&t(null,...n)),i.pending=!1,this._drainQueue())),this._queue.push(i),this._drainQueue()}_drainQueue(e=!1){if(!this.connected||this._queue.length===0)return;let t=this._queue[0];t.pending&&!e||(t.pending=!0,t.tryCount++,this.flags=t.flags,this.emit.apply(this,t.args))}packet(e){e.nsp=this.nsp,this.io._packet(e)}onopen(){typeof this.auth=="function"?this.auth(e=>{this._sendConnectPacket(e)}):this._sendConnectPacket(this.auth)}_sendConnectPacket(e){this.packet({type:p.CONNECT,data:this._pid?Object.assign({pid:this._pid,offset:this._lastOffset},e):e})}onerror(e){this.connected||this.emitReserved("connect_error",e)}onclose(e,t){this.connected=!1,delete this.id,this.emitReserved("disconnect",e,t)}onpacket(e){if(e.nsp===this.nsp)switch(e.type){case p.CONNECT:e.data&&e.data.sid?this.onconnect(e.data.sid,e.data.pid):this.emitReserved("connect_error",new Error("It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)"));break;case p.EVENT:case p.BINARY_EVENT:this.onevent(e);break;case p.ACK:case p.BINARY_ACK:this.onack(e);break;case p.DISCONNECT:this.ondisconnect();break;case p.CONNECT_ERROR:this.destroy();let i=new Error(e.data.message);i.data=e.data.data,this.emitReserved("connect_error",i);break}}onevent(e){let t=e.data||[];e.id!=null&&t.push(this.ack(e.id)),this.connected?this.emitEvent(t):this.receiveBuffer.push(Object.freeze(t))}emitEvent(e){if(this._anyListeners&&this._anyListeners.length){let t=this._anyListeners.slice();for(let i of t)i.apply(this,e)}super.emit.apply(this,e),this._pid&&e.length&&typeof e[e.length-1]=="string"&&(this._lastOffset=e[e.length-1])}ack(e){let t=this,i=!1;return function(...r){i||(i=!0,t.packet({type:p.ACK,id:e,data:r}))}}onack(e){let t=this.acks[e.id];typeof t=="function"&&(t.apply(this,e.data),delete this.acks[e.id])}onconnect(e,t){this.id=e,this.recovered=t&&this._pid===t,this._pid=t,this.connected=!0,this.emitBuffered(),this.emitReserved("connect"),this._drainQueue(!0)}emitBuffered(){this.receiveBuffer.forEach(e=>this.emitEvent(e)),this.receiveBuffer=[],this.sendBuffer.forEach(e=>{this.notifyOutgoingListeners(e),this.packet(e)}),this.sendBuffer=[]}ondisconnect(){this.destroy(),this.onclose("io server disconnect")}destroy(){this.subs&&(this.subs.forEach(e=>e()),this.subs=void 0),this.io._destroy(this)}disconnect(){return this.connected&&this.packet({type:p.DISCONNECT}),this.destroy(),this.connected&&this.onclose("io client disconnect"),this}close(){return this.disconnect()}compress(e){return this.flags.compress=e,this}get volatile(){return this.flags.volatile=!0,this}timeout(e){return this.flags.timeout=e,this}onAny(e){return this._anyListeners=this._anyListeners||[],this._anyListeners.push(e),this}prependAny(e){return this._anyListeners=this._anyListeners||[],this._anyListeners.unshift(e),this}offAny(e){if(!this._anyListeners)return this;if(e){let t=this._anyListeners;for(let i=0;i<t.length;i++)if(e===t[i])return t.splice(i,1),this}else this._anyListeners=[];return this}listenersAny(){return this._anyListeners||[]}onAnyOutgoing(e){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.push(e),this}prependAnyOutgoing(e){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.unshift(e),this}offAnyOutgoing(e){if(!this._anyOutgoingListeners)return this;if(e){let t=this._anyOutgoingListeners;for(let i=0;i<t.length;i++)if(e===t[i])return t.splice(i,1),this}else this._anyOutgoingListeners=[];return this}listenersAnyOutgoing(){return this._anyOutgoingListeners||[]}notifyOutgoingListeners(e){if(this._anyOutgoingListeners&&this._anyOutgoingListeners.length){let t=this._anyOutgoingListeners.slice();for(let i of t)i.apply(this,e.data)}}};function P(s){s=s||{},this.ms=s.min||100,this.max=s.max||1e4,this.factor=s.factor||2,this.jitter=s.jitter>0&&s.jitter<=1?s.jitter:0,this.attempts=0}P.prototype.duration=function(){var s=this.ms*Math.pow(this.factor,this.attempts++);if(this.jitter){var e=Math.random(),t=Math.floor(e*this.jitter*s);s=Math.floor(e*10)&1?s+t:s-t}return Math.min(s,this.max)|0};P.prototype.reset=function(){this.attempts=0};P.prototype.setMin=function(s){this.ms=s};P.prototype.setMax=function(s){this.max=s};P.prototype.setJitter=function(s){this.jitter=s};var K=class extends b{constructor(e,t){var i;super(),this.nsps={},this.subs=[],e&&typeof e=="object"&&(t=e,e=void 0),t=t||{},t.path=t.path||"/socket.io",this.opts=t,T(this,t),this.reconnection(t.reconnection!==!1),this.reconnectionAttempts(t.reconnectionAttempts||1/0),this.reconnectionDelay(t.reconnectionDelay||1e3),this.reconnectionDelayMax(t.reconnectionDelayMax||5e3),this.randomizationFactor((i=t.randomizationFactor)!==null&&i!==void 0?i:.5),this.backoff=new P({min:this.reconnectionDelay(),max:this.reconnectionDelayMax(),jitter:this.randomizationFactor()}),this.timeout(t.timeout==null?2e4:t.timeout),this._readyState="closed",this.uri=e;let r=t.parser||Ie;this.encoder=new r.Encoder,this.decoder=new r.Decoder,this._autoConnect=t.autoConnect!==!1,this._autoConnect&&this.open()}reconnection(e){return arguments.length?(this._reconnection=!!e,this):this._reconnection}reconnectionAttempts(e){return e===void 0?this._reconnectionAttempts:(this._reconnectionAttempts=e,this)}reconnectionDelay(e){var t;return e===void 0?this._reconnectionDelay:(this._reconnectionDelay=e,(t=this.backoff)===null||t===void 0||t.setMin(e),this)}randomizationFactor(e){var t;return e===void 0?this._randomizationFactor:(this._randomizationFactor=e,(t=this.backoff)===null||t===void 0||t.setJitter(e),this)}reconnectionDelayMax(e){var t;return e===void 0?this._reconnectionDelayMax:(this._reconnectionDelayMax=e,(t=this.backoff)===null||t===void 0||t.setMax(e),this)}timeout(e){return arguments.length?(this._timeout=e,this):this._timeout}maybeReconnectOnOpen(){!this._reconnecting&&this._reconnection&&this.backoff.attempts===0&&this.reconnect()}open(e){if(~this._readyState.indexOf("open"))return this;this.engine=new B(this.uri,this.opts);let t=this.engine,i=this;this._readyState="opening",this.skipReconnect=!1;let r=S(t,"open",function(){i.onopen(),e&&e()}),n=c=>{this.cleanup(),this._readyState="closed",this.emitReserved("error",c),e?e(c):this.maybeReconnectOnOpen()},o=S(t,"error",n);if(this._timeout!==!1){let c=this._timeout,h=this.setTimeoutFn(()=>{r(),n(new Error("timeout")),t.close()},c);this.opts.autoUnref&&h.unref(),this.subs.push(()=>{this.clearTimeoutFn(h)})}return this.subs.push(r),this.subs.push(o),this}connect(e){return this.open(e)}onopen(){this.cleanup(),this._readyState="open",this.emitReserved("open");let e=this.engine;this.subs.push(S(e,"ping",this.onping.bind(this)),S(e,"data",this.ondata.bind(this)),S(e,"error",this.onerror.bind(this)),S(e,"close",this.onclose.bind(this)),S(this.decoder,"decoded",this.ondecoded.bind(this)))}onping(){this.emitReserved("ping")}ondata(e){try{this.decoder.add(e)}catch(t){this.onclose("parse error",t)}}ondecoded(e){D(()=>{this.emitReserved("packet",e)},this.setTimeoutFn)}onerror(e){this.emitReserved("error",e)}socket(e,t){let i=this.nsps[e];return i?this._autoConnect&&!i.active&&i.connect():(i=new W(this,e,t),this.nsps[e]=i),i}_destroy(e){let t=Object.keys(this.nsps);for(let i of t)if(this.nsps[i].active)return;this._close()}_packet(e){let t=this.encoder.encode(e);for(let i=0;i<t.length;i++)this.engine.write(t[i],e.options)}cleanup(){this.subs.forEach(e=>e()),this.subs.length=0,this.decoder.destroy()}_close(){this.skipReconnect=!0,this._reconnecting=!1,this.onclose("forced close"),this.engine&&this.engine.close()}disconnect(){return this._close()}onclose(e,t){this.cleanup(),this.backoff.reset(),this._readyState="closed",this.emitReserved("close",e,t),this._reconnection&&!this.skipReconnect&&this.reconnect()}reconnect(){if(this._reconnecting||this.skipReconnect)return this;let e=this;if(this.backoff.attempts>=this._reconnectionAttempts)this.backoff.reset(),this.emitReserved("reconnect_failed"),this._reconnecting=!1;else{let t=this.backoff.duration();this._reconnecting=!0;let 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Version: ".concat(e.version,"\nServer time: ").concat(e.serverTimestamp,", Sever time offset: ").concat(this.serverTimeOffset," hours"))(),E._meta.version.startsWith(e.version.split("-")[0])||a("warn","Uib:ioSetup:".concat(this._ioChannels.control),"Server version (".concat(e.version,") not the same as the client version (").concat(E._meta.version,")"))(),this.autoSendReady===!0&&a("trace","Uib:ioSetup:".concat(this._ioChannels.control,"/client connect"),"Auto-sending ready-for-content/replay msg to server");break}default:a("trace","uibuilderfe:ioSetup:".concat(this._ioChannels.control),"Received ".concat(e.uibuilderCtrl," from server"))}}_forThis(e){let t=!0;return e.pageName&&e.pageName!==this.pageName&&(a("trace","Uib:_msgRcvdEvents:_uib","Not for this page")(),t=!1),e.clientId&&e.clientId!==this.clientId&&(a("trace","Uib:_msgRcvdEvents:_uib","Not for this clientId")(),t=!1),e.tabId&&e.tabId!==this.tabId&&(a("trace","Uib:_msgRcvdEvents:_uib","Not for this tabId")(),t=!1),t}_msgRcvdEvents(e){if(this._dispatchCustomEvent("uibuilder:stdMsgReceived",e),e.topic&&this._dispatchCustomEvent("uibuilder:msg:topic:".concat(e.topic),e),e._uib){if(!this._forThis(e._uib))return;if(e._uib.reload===!0){a("trace","Uib:_msgRcvdEvents:_uib:reload","reloading")(),location.reload();return}if(e._uib.command){this._uibCommand(e);return}e._uib.componentRef==="globalNotification"&&m.showDialog("notify",e._uib.options,e),e._uib.componentRef==="globalAlert"&&m.showDialog("alert",e._uib.options,e)}if(e._ui){if(!this._forThis(e._ui))return;a("trace","Uib:_msgRcvdEvents:_ui","Calling _uiManager")(),this._dispatchCustomEvent("uibuilder:msg:_ui",e),m._uiManager(e)}}_send(e,t,i=""){t==null&&(t=this._ioChannels.client),t===this._ioChannels.client?e=Me(e,"payload"):t===this._ioChannels.control&&(e=Me(e,"uibuilderCtrl"),Object.prototype.hasOwnProperty.call(e,"uibuilderCtrl")||(e.uibuilderCtrl="manual send"),e.from="client"),e._socketId=this._socket.id,i===""&&this.originator!==""&&(i=this.originator),i!==""&&Object.assign(e,{_uib:{originator:i}}),Object.prototype.hasOwnProperty.call(e,"topic")||(this.topic!==void 0&&this.topic!==""?e.topic=this.topic:Object.prototype.hasOwnProperty.call(this,"msg")&&Object.prototype.hasOwnProperty.call(this.msg,"topic")&&(e.topic=this.msg.topic)),e._ui&&(e._ui.from="client");let r;t===this._ioChannels.client?(this.set("sentMsg",e),r=this.set("msgsSent",++this.msgsSent)):t===this._ioChannels.control&&(this.set("sentCtrlMsg",e),r=this.set("msgsSentCtrl",++this.msgsSentCtrl)),a("trace","Uib:_send"," Channel '".concat(t,"'. Sending msg #").concat(r),e)(),this._socket.emit(t,e)}_stdMsgFromServer(e){e=Me(e,"payload"),!(e._uib&&!this._forThis(e._uib))&&(e._ui&&!this._forThis(e._ui)||(this._checkTimestamp(e),this.set("msgsReceived",++this.msgsReceived),this._msgRcvdEvents(e),"_ui"in e&&!("payload"in e)||this.set("msg",e),a("info","Uib:ioSetup:stdMsgFromServer","Channel '".concat(this._ioChannels.server,"'. Received msg #").concat(this.msgsReceived,"."),e)()))}_uibCommand(e){var h;if(!e._uib||!e._uib.command){a("error","uibuilder:_uibCommand","Invalid command message received",{msg:e})(),e.payload=e.error="Invalid command message received",this.send(e);return}let t=e._uib.command;if(!d(this,ve).includes(t.trim())){a("error","Uib:_uibCommand","Command '".concat(t," is not allowed to be called externally"))();return}let i=e._uib.prop,r=e._uib.value,n=(h=e._uib.quiet)!=null?h:!1,o,c;switch(t){case"elementIsVisible":{o=this.elementIsVisible(i);break}case"elementExists":{o=this.elementExists(i,!1),c='Element "'.concat(i,'" ').concat(o?"exists":"does not exist");break}case"get":{o=this.get(i);break}case"getManagedVarList":{i==="full"?o=this.getManagedVarList():o=Object.values(this.getManagedVarList());break}case"getWatchedVars":{i==="full"?o=this.getWatchedVars():o=Object.values(this.getWatchedVars());break}case"htmlSend":{o=this.htmlSend("",!1);break}case"include":{o=m.include(i,r);break}case"navigate":{let u;i?u=i:r&&(u=r),o=this.navigate(u);break}case"scrollTo":{o=this.scrollTo(i,r);break}case"set":{let u=!1,y=!1;e._uib.options&&e._uib.options.store&&(e._uib.options.store===!0&&(u=!0),e._uib.options.autoload===!0&&(y=!0)),o=this.set(i,r,u,y);break}case"showMsg":{o=this.showMsg(r,i);break}case"showStatus":{o=this.showStatus(r,i);break}case"uiGet":{o=m.uiGet(i,r);break}case"uiWatch":{o=this.uiWatch(i);break}case"watchUrlHash":{o=this.watchUrlHash(i);break}default:{a("warning","Uib:_uibCommand","Command '".concat(t,"' not yet implemented"))();break}}n!==!0&&(o===void 0&&(o="'".concat(i,"' is undefined")),Object(o).constructor===Promise?o.then(u=>(e.payload=e._uib.response=u,e.info=e._uib.info=c,e.topic||(e.topic=this.topic||"uib ".concat(t," for '").concat(i,"'")),this.send(e),!0)).catch(u=>{a(0,"Uib:_uibCommand","Error: ",u)()}):(e.payload=e._uib.response=o,e.info=e._uib.info=c,e.topic||(e.topic=this.topic||"uib ".concat(t," for '").concat(i,"'")),this.send(e)))}beaconLog(e,t){t||(t="debug"),navigator.sendBeacon("./_clientLog","".concat(t,"::").concat(e))}htmlSend(e="",t=!0){let i="<!doctype html>\n".concat(document.documentElement.outerHTML),r={payload:i,length:i.length,topic:this.topic};return a("trace","Uib:htmlSend","Sending full HTML to Node-RED",r)(),t===!0&&this._send(r,this._ioChannels.client,e),i}logToServer(){this.sendCtrl({uibuilderCtrl:"client log message",payload:arguments,_socketId:this._socket.id,clientId:this.clientId,tabId:this.tabId,pageName:this.pageName,connections:this.connectedNum,lastNavType:this.lastNavType})}eventSend(e,t=""){if(this.$attrs){a("error","Uib:eventSend","`this` has been usurped by VueJS. Make sure that you wrap the call in a function: `doEvent: function (event) { uibuilder.eventSend(event) },`")();return}if(!e&&!event){a("warn","Uib:eventSend","Neither the domevent nor the hidden event properties are set. You probably called this function directly rather than applying to an on click event.")();return}if((!e||!e.constructor)&&(e=event),!e.constructor.name.endsWith("Event")||!e.currentTarget){a("warn","Uib:eventSend","ARGUMENT NOT A DOM EVENT - use data attributes not function arguments to pass data. Arg Type: ".concat(e.constructor.name),e)();return}e.preventDefault();let i=e.currentTarget,r={};Object.keys(i).forEach(g=>{g.startsWith("_")||(r[g]=i[g])});let n=["class","id","name"],o;try{o=Object.assign({},...Array.from(i.attributes,({name:g,value:_e})=>{if(!n.includes(g))return{[g]:_e}}))}catch{}let c,h=[];i.form&&(c={},c.valid=i.form.checkValidity(),Object.values(i.form).forEach((g,_e)=>{let V=g.id!==""?g.id:g.name!==""?g.name:"".concat(_e,"-").concat(g.type);if(V!==""&&g.type){if("checked"in g&&g.value==="on"&&(g.value=g.checked.toString()),h.push({key:V,val:g.value}),c[V]={id:g.id,name:g.name,value:g.value,valid:g.checkValidity(),type:g.type},c[V].valid===!1){let w=g.validity;c[V].validity={badInput:w.badInput===!0?w.badInput:void 0,customError:w.customError===!0?w.customError:void 0,patternMismatch:w.patternMismatch===!0?w.patternMismatch:void 0,rangeOverflow:w.rangeOverflow===!0?w.rangeOverflow:void 0,rangeUnderflow:w.rangeUnderflow===!0?w.rangeUnderflow:void 0,stepMismatch:w.stepMismatch===!0?w.stepMismatch:void 0,tooLong:w.tooLong===!0?w.tooLong:void 0,tooShort:w.tooShort===!0?w.tooShort:void 0,typeMismatch:w.typeMismatch===!0?w.typeMismatch:void 0,valueMissing:w.valueMissing===!0?w.valueMissing:void 0}}g.dataset&&(c[V].data=g.dataset)}}));let u;try{u=Array.from(i.classList)}catch{}let y={...i.dataset},x;Object.prototype.toString.call(i)==="[object Notification]"&&(y="notification-".concat(i.userAction),x={actions:i.actions,badge:i.badge,body:i.body,data:i.data,dir:i.dir,icon:i.icon,image:i.image,lang:i.lang,renotify:i.renotify,requireInteraction:i.requireInteraction,silent:i.silent,tag:i.tag,timestamp:i.timestamp,title:i.title,vibrate:i.vibrate});let k={payload:y,_ui:{type:"eventSend",id:i.id!==""?i.id:void 0,name:i.name!==""?i.name:void 0,slotText:i.textContent?i.textContent.substring(0,255):void 0,form:c,props:r,attribs:o,classes:u,notification:x,event:e.type,altKey:e.altKey,ctrlKey:e.ctrlKey,shiftKey:e.shiftKey,metaKey:e.metaKey,pointerType:e.pointerType,nodeName:i.nodeName,clientId:this.clientId,pageName:this.pageName,tabId:this.tabId}};h.length>0&&h.forEach(g=>{k.payload[g.key]=g.val}),e.type==="change"&&(k._ui.newValue=k.payload.value="checked"in i?i.checked:e.target.value),a("trace","Uib:eventSend","Sending msg to Node-RED",k)(),i.dataset&&i.dataset.length===0&&a("warn","Uib:eventSend","No payload in msg. data-* attributes should be used.")(),this._send(k,this._ioChannels.client,t)}send(e,t=""){this._send(e,this._ioChannels.client,t)}sendCtrl(e){this._send(e,this._ioChannels.control)}_getIOnamespace(){let e;if(e=this.cookies["uibuilder-namespace"],e===void 0||e===""){let t=window.location.pathname.split("/").filter(function(i){return i.trim()!==""});t.length>0&&t[t.length-1].endsWith(".html")&&t.pop(),e=t.pop(),a("trace","uibuilder.module.js:getIOnamespace","Socket.IO namespace found via url path: ".concat(e))()}else a("trace","uibuilder.module.js:getIOnamespace","Socket.IO namespace found via cookie: ".concat(e))();return this.url=e,e="/"+e,a("trace","uibuilder.module.js:getIOnamespace","Final Socket.IO namespace: ".concat(e))(),e}_checkConnect(e,t,i=1){if(navigator.onLine!==!1)return e||(e=this.retryMs),t||(t=this.retryFactor),a("trace","Uib:checkConnect","Checking connection. Connected: ".concat(this._socket.connected,". Timer: ").concat(d(this,_),". Depth: ").concat(i,". Delay: ").concat(e,". Factor: ").concat(t),this._socket)(),this._socket.connected===!0?(d(this,_)&&(window.clearTimeout(d(this,_)),A(this,_,null)),this.set("ioConnected",!0),this.set("socketError",null),!0):(this.set("ioConnected",!1),d(this,_)&&window.clearTimeout(d(this,_)),A(this,_,window.setTimeout(()=>{a("warn","Uib:checkConnect:setTimeout","Socket.IO reconnection attempt. Current delay: ".concat(e,". Depth: ").concat(i))(),this._socket.close(),this._socket.connect(),A(this,_,null),this._checkConnect(e*t,t,i++)},e)),!1)}_onConnect(){a("info","Uib:ioSetup","\u2705 SOCKET CONNECTED. Connection count: ".concat(this.connectedNum,", Is a Recovery?: ").concat(this._socket.recovered,". \nNamespace: ").concat(this.ioNamespace))(),this._dispatchCustomEvent("uibuilder:socket:connected",{numConnections:this.connectedNum,isRecovery:this._socket.recovered}),this._checkConnect()}_onDisconnect(e){a("info","Uib:ioSetup:socket-disconnect","\u26D4 Socket Disconnected. Reason: ".concat(e))(),this._dispatchCustomEvent("uibuilder:socket:disconnected",e),this._checkConnect()}_ioSetup(){return J===void 0?(a("error","Uib:ioSetup","Socket.IO client not loaded, Node-RED comms will not work")(),!1):(this._socket&&(a("trace","Uib:ioSetup","Removing listeners in preparation for redoing Socket.IO connections")(),d(this,_)&&(window.clearTimeout(d(this,_)),A(this,_,null)),this._socket.close(),this._socket.offAny(),this._socket=void 0,this.set("ioConnected",!1)),this.socketOptions.path=this.ioPath,a("trace","Uib:ioSetup","About to create IO object. Transports: [".concat(this.socketOptions.transports.join(", "),"]"))(),this._socket=J(this.ioNamespace,this.socketOptions),this._socket.on("connect",this._onConnect.bind(this)),this._socket.on(this._ioChannels.server,this._stdMsgFromServer.bind(this)),this._socket.on(this._ioChannels.control,this._ctrlMsgFromServer.bind(this)),this._socket.on("disconnect",this._onDisconnect.bind(this)),this._socket.on("connect_error",e=>{navigator.onLine!==!1&&(a("error","Uib:ioSetup:connect_error","\u274C Socket.IO Connect Error. Reason: ".concat(e.message),e)(),this.set("ioConnected",!1),this.set("socketError",e),this._dispatchCustomEvent("uibuilder:socket:disconnected",e))}),this._socket.on("error",e=>{a("error","Uib:ioSetup:error","\u274C Socket.IO Error. Reason: ".concat(e.message),e)(),this.set("ioConnected",!1),this.set("socketError",e),this._dispatchCustomEvent("uibuilder:socket:disconnected",e)}),this._checkConnect(),!0)}start(e){a("trace","Uib:start","Starting")(),d(this,oe)&&this.cancelChange("msg",d(this,oe)),this.started===!0&&a("info","Uib:start","Start function already called. Resetting Socket.IO and msg handler.")(),a("log","Uib:start","Cookies: ",this.cookies,"\nClient ID: ".concat(this.clientId))(),a("trace","Uib:start","ioNamespace: ",this.ioNamespace,"\nioPath: ".concat(this.ioPath))(),e&&(e.ioNamespace!==void 0&&e.ioNamespace!==null&&e.ioNamespace!==""&&this.set("ioNamespace",e.ioNamespace),e.ioPath!==void 0&&e.ioPath!==null&&e.ioPath!==""&&this.set("ioPath",e.ioPath)),document.styleSheets.length>=1||document.styleSheets.length===1&&document.styleSheets[0].cssRules.length===0?a("info","Uib:start","Styles already loaded so not loading uibuilder default styles.")():e&&e.loadStylesheet===!1?a("info","Uib:start","No styles loaded & options.loadStylesheet === false.")():(a("info","Uib:start","No styles loaded, loading uibuilder default styles.")(),this.loadStyleSrc("".concat(this.httpNodeRoot,"/uibuilder/uib-brand.min.css")));let[t]=performance.getEntriesByType("navigation");if(this.set("lastNavType",t.type),this.set("started",this._ioSetup()),this.started===!0?a("trace","Uib:start","Start completed. Socket.IO client library loaded.")():a("error","Uib:start","Start completed. ERROR: Socket.IO client library NOT LOADED.")(),this._watchHashChanges(),window.Vue){this.set("isVue",!0);try{this.set("vueVersion",window.Vue.version)}catch{}a("trace","Uib:start","VueJS is loaded. Version: ".concat(this.vueVersion))()}else a("trace","Uib:start","VueJS is not loaded.")();window.DOMPurify?(this.set("purify",!0),a("trace","Uib:start","DOMPurify is loaded.")()):a("trace","Uib:start","DOMPurify is not loaded.")(),window.markdownit?(this.set("markdown",!0),a("trace","Uib:start","Markdown-IT is loaded.")()):a("trace","Uib:start","Markdown-IT is not loaded.")(),this.onChange("msg",i=>{if(d(this,z)===!0){let r=document.getElementById("uib_last_msg");r&&(r.innerHTML=this.syntaxHighlight(i))}}),this._dispatchCustomEvent("uibuilder:startComplete")}},q=new WeakMap,O=new WeakMap,$=new WeakMap,_=new WeakMap,oe=new WeakMap,z=new WeakMap,Y=new WeakMap,H=new WeakMap,ve=new WeakMap,ae=new WeakMap,ce=new WeakMap,M=new WeakMap,l(E,"_meta",{version:wt,type:"module",displayName:"uibuilder"}),E),ke=new ei;window.uibuilder?a("error","uibuilder.module.js","`uibuilder` already assigned to window. Have you tried to load it more than once?"):window.uibuilder=ke;window.uib?a("warn","uibuilder.module.js","`uib` shortcut already assigned to window."):window.uib=ke;window.$?a("warn","uibuilder.module.js","Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` or `uib.$` instead."):window.$=window.uibuilder.$;window.$$?a("warn","uibuilder.module.js","Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` or `uib.$$` instead."):window.$$=window.uibuilder.$$;window.$ui?a("warn","uibuilder.module.js","Cannot allocate the global `$ui`, it is already in use. Use `uibuilder.$ui` or `uib.$ui` instead."):window.$ui=window.uibuilder.$ui;var Js=ke;ke.start();customElements.define("uib-var",G);})();
 //# sourceMappingURL=uibuilder.iife.min.js.map
diff --git a/front-end/uibuilder.iife.min.js.map b/front-end/uibuilder.iife.min.js.map
index 710ef0e5..1ef5ddf3 100644
--- a/front-end/uibuilder.iife.min.js.map
+++ b/front-end/uibuilder.iife.min.js.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
   "sources": ["src/front-end-module/ui.js", "src/front-end-module/uibuilder.module.js", "src/components/uib-var.js", "node_modules/engine.io-parser/build/esm/commons.js", "node_modules/engine.io-parser/build/esm/encodePacket.browser.js", "node_modules/engine.io-parser/build/esm/contrib/base64-arraybuffer.js", "node_modules/engine.io-parser/build/esm/decodePacket.browser.js", "node_modules/engine.io-parser/build/esm/index.js", "node_modules/@socket.io/component-emitter/index.mjs", "node_modules/engine.io-client/build/esm/globalThis.browser.js", "node_modules/engine.io-client/build/esm/util.js", "node_modules/engine.io-client/build/esm/contrib/parseqs.js", "node_modules/engine.io-client/build/esm/transport.js", "node_modules/engine.io-client/build/esm/contrib/yeast.js", "node_modules/engine.io-client/build/esm/contrib/has-cors.js", "node_modules/engine.io-client/build/esm/transports/xmlhttprequest.browser.js", "node_modules/engine.io-client/build/esm/transports/polling.js", "node_modules/engine.io-client/build/esm/transports/websocket-constructor.browser.js", "node_modules/engine.io-client/build/esm/transports/websocket.js", "node_modules/engine.io-client/build/esm/transports/webtransport.js", "node_modules/engine.io-client/build/esm/transports/index.js", "node_modules/engine.io-client/build/esm/contrib/parseuri.js", "node_modules/engine.io-client/build/esm/socket.js", "node_modules/engine.io-client/build/esm/index.js", "node_modules/socket.io-client/build/esm/url.js", "node_modules/socket.io-parser/build/esm/index.js", "node_modules/socket.io-parser/build/esm/is-binary.js", "node_modules/socket.io-parser/build/esm/binary.js", "node_modules/socket.io-client/build/esm/on.js", "node_modules/socket.io-client/build/esm/socket.js", "node_modules/socket.io-client/build/esm/contrib/backo2.js", "node_modules/socket.io-client/build/esm/manager.js", "node_modules/socket.io-client/build/esm/index.js"],
-  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\n// Namespaces - See https://stackoverflow.com/a/52572048/1309986\n// const NAMESPACES = {\n//     svg: 'http://www.w3.org/2000/svg',\n//     html: 'http://www.w3.org/1999/xhtml',\n//     xml: 'http://www.w3.org/XML/1998/namespace',\n//     xlink: 'http://www.w3.org/1999/xlink',\n//     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n// }\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    //#region ---- Internal Methods ----\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                if (attrib === 'class' && Array.isArray(comp.attributes[attrib])) comp.attributes[attrib].join(' ')\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    /** External alias for _uiComposeComponent\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n    } // --- end of _uiManager ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    //#endregion ---- -------- ----\n    //#region ---- External Methods ----\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += msg.payload\n        if (ui.content) content += ui.content\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        this._uiManager(msg)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName !== null && propName !== '') {\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    // Nightmare of different object types in a DOM Element!\n                    if (prop.constructor.name === 'NamedNodeMap') { // Attributes\n                        const p = {}\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                        out.push(p)\n                    } else if (!prop.constructor.name.toLowerCase().includes('map')) { // Ordinary properties\n                        out.push({\n                            [propName]: prop\n                        })\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                        out.push(p)\n                    }\n                }\n\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    //#endregion ---- -------- ----\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n", "/* This is the Front-End JavaScript for uibuilder  in HTML Module form\n  It provides a number of global objects that can be used in your own javascript.\n  see the docs folder `./docs/uibuilder.module.md` for details of how to use this fully.\n\n  Please use the default index.js file for your own code and leave this as-is.\n  See Uib._meta for client version string\n\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n//#region --- Type Defs --- //\n/**\n * A string containing HTML markup\n * @typedef {string} html\n */\n//#endregion --- Type Defs --- //\n\n//#region --- We need the Socket.IO & ui libraries & the uib-var component  --- //\n// @ts-ignore - Note: Only works when using esbuild to bundle\nimport Ui from './ui'\nimport UibVar from '../components/uib-var'\nimport io from 'socket.io-client'\n\n// TODO - Maybe - check if already loaded as window['io']?\n// TODO - Maybe - Should this be moved to inside the class - would know the httpRoot then so less need to guess?\n// TODO           Or, could pull the cookie processing out of the class\n// const ioLocns = [ // Likely locations of the Socket.IO client library\n//     // Where it should normally be\n//     '../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and haven't changed httpNodeRoot\n//     '/uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and have changed httpNodeRoot\n//     '../../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Direct from the Internet - last ditch attempt\n//     'https://cdn.jsdelivr.net/npm/socket.io-client/+esm',\n// ]\n\n// let io\n// for (const locn of ioLocns) {\n//     try {\n//         ({ io } = await import(locn))\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library found at '${locn}'`)()\n//     } catch (e) {\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library not found at '${locn}'`)()\n//     }\n//     if (io) break\n// }\n// if (!io) log('error', 'uibuilder.module.js', 'Socket.IO client failed to load')()\n//#endregion -------- -------- -------- //\n\nconst version = '6.8.0-src'\n\n// TODO Add option to allow log events to be sent back to Node-RED as uib ctrl msgs\n//#region --- Module-level utility functions --- //\n\n// @ts-ignore Detect whether the loaded library is minified or not\nconst isMinified = !(/param/).test(function (param) { }) // eslint-disable-line no-unused-vars\n\n//#region --- print/console - debugging output functions --- //\n\n/** Default log level - Error & Warn */\nlet logLevel = isMinified ? 0 : 1  // When using minified lib, assume production and only log errors otherwise also log warn\n// function changeLogLevel(level) {\n//     logLevel = level\n//     console.trace = logLevel < 4 ? function(){} : console.trace\n//     console.debug = logLevel < 2 ? function(){} : console.debug\n//     if ( logLevel < 1 ) {\n//         console.log = console.group = console.groupEnd =  function(){}\n//     }\n// }\n\n// Experimental\nconst LOG_STYLES = {\n    // 0\n    error: {\n        css: 'background: red; color: black;',\n        txtCss: 'color: red; ',\n        pre: '\u26D4 ',\n        console: 'error',  // or trace\n    },\n    // 1\n    warn: {\n        css: 'background: darkorange; color: black;',\n        txtCss: 'color: darkorange; ',\n        pre: '\u26A0 ',\n        console: 'warn',\n    },\n    // 2\n    info: {\n        css: 'background: aqua; color: black;',\n        txtCss: 'color: aqua;',\n        pre: '\u2757 ',\n        console: 'info',\n    },\n    // 3\n    log: {\n        css: 'background: grey; color: yellow;',\n        txtCss: 'color: grey;',\n        pre: '',\n        console: 'log',\n    },\n    // 4\n    debug: {\n        css: 'background: chartreuse; color: black;',\n        txtCss: 'color: chartreuse;',\n        pre: '',\n        console: 'debug',\n    },\n    // 5\n    trace: {\n        css: 'background: indigo; color: yellow;',\n        txtCss: 'color: hotpink;',\n        pre: '',\n        console: 'log',\n    },\n\n    names: ['error', 'warn', 'info', 'log', 'debug', 'trace'],\n    reset: 'color: inherit;',\n    head: 'font-weight:bold; font-style:italic;',\n    level: 'font-weight:bold; border-radius: 3px; padding: 2px 5px; display:inline-block;',\n}\n/** Custom logging. e.g. log(2, 'here:there', 'jiminy', {fred:'jim'})()\n * @returns {Function} Log function @example log(2, 'here:there', 'jiminy', {fred:'jim'})()\n */\nfunction log() {\n    // Get the args\n    const args = Array.prototype.slice.call(arguments)\n\n    // 1st arg is the log level/type\n    let level = args.shift()\n    let strLevel\n    switch (level) {\n        case 'trace':\n        case 5: {\n            if (logLevel < 5) break\n            level = 5 // make sure level is numeric\n            strLevel = 'trace'\n            break\n        }\n\n        case 'debug':\n        case 4: {\n            if (logLevel < 4) break\n            level = 4\n            strLevel = 'debug'\n            break\n        }\n\n        case 'log':\n        case 3: {\n            if (logLevel < 3) break\n            level = 3\n            strLevel = 'log'\n            break\n        }\n\n        case 'info':\n        case '':\n        case 2: {\n            if (logLevel < 2) break\n            level = 2\n            strLevel = 'info'\n            break\n        }\n\n        case 'warn':\n        case 1: {\n            if (logLevel < 1) break\n            level = 1\n            strLevel = 'warn'\n            break\n        }\n\n        case 'error':\n        case 'err':\n        case 0: {\n            if (logLevel < 0) break\n            level = 0\n            strLevel = 'error'\n            break\n        }\n\n        default: {\n            level = -1\n            break\n        }\n\n    }\n\n    // If set to something unknown, no log output\n    if (strLevel === undefined) return function () { }\n\n    // 2nd arg is a heading that will be colour highlighted\n    const head = args.shift()\n\n    // Bind back to console.log (could use console[strLevel] but some levels ignore some formatting, use console.xxx directly or dedicated fn)\n    return Function.prototype.bind.call(\n        console[LOG_STYLES[strLevel].console],\n        console,\n        `%c${LOG_STYLES[strLevel].pre}${strLevel}%c [${head}]`, `${LOG_STYLES.level} ${LOG_STYLES[strLevel].css}`, `${LOG_STYLES.head} ${LOG_STYLES[strLevel].txtCss}`,\n        ...args\n    )\n}\n//#endregion\n\n/** A hack to dynamically load a remote module and wait until it is loaded\n * @param {string} url The URL of the module to load\n * @returns {object|null} Either the result object or null (if the load fails)\n */\n// function loadModule(url) { // eslint-disable-line no-unused-vars\n//     let done\n\n//     import(url)\n//         .then(res => {\n//             log('debug', '>> then >>', res)()\n//             done = res\n//         })\n//         .catch(err => {\n//             console.error(`[uibuilder:loadModule] Could not load module ${url}`, err)\n//             done = null\n//         })\n\n//     //  eslint-disable-next-line no-empty\n//     while (!done) { } // eslint-disable-line no-unmodified-loop-condition\n\n//     return done\n// }\n\n/** Makes a null or non-object into an object\n * If not null, moves \"thing\" to {payload:thing}\n *\n * @param {*} thing Thing to check\n * @param {string} [property='payload'] property that \"thing\" is moved to if not null and not an object\n * @returns {!object} _\n */\nfunction makeMeAnObject(thing, property) {\n    if (!property) property = 'payload'\n    if (typeof property !== 'string') {\n        log('warn', 'uibuilderfe:makeMeAnObject', `WARNING: property parameter must be a string and not: ${typeof property}`)()\n        property = 'payload'\n    }\n    let out = {}\n    if ( thing !== null && thing.constructor.name === 'Object' ) {\n        out = thing\n    } else if (thing !== null) {\n        out[property] = thing\n    }\n    return out\n} // --- End of make me an object --- //\n\n/** Joins all arguments as a URL string\n * see http://stackoverflow.com/a/28592528/3016654\n * since v1.0.10, fixed potential double // issue\n * arguments {string} URL fragments\n * @returns {string} _\n */\nfunction urlJoin() {\n    const paths = Array.prototype.slice.call(arguments)\n    const url = '/' + paths.map(function (e) {\n        return e.replace(/^\\/|\\/$/g, '')\n    })\n        .filter(function (e) {\n            return e\n        })\n        .join('/')\n    return url.replace('//', '/')\n} // ---- End of urlJoin ---- //\n\n/** Convert JSON to Syntax Highlighted HTML\n * @param {object} json A JSON/JavaScript Object\n * @returns {html} Object reformatted as highlighted HTML\n */\nfunction syntaxHighlight(json) {\n    if (json === undefined) {\n        json = '<span class=\"undefined\">undefined</span>'\n    } else {\n        try {\n            json = JSON.stringify(json, undefined, 4)\n            // json = json.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;') // eslint-disable-line newline-per-chained-call\n            json = json.replace(/(\"(\\\\u[a-zA-Z0-9]{4}|\\\\[^u]|[^\\\\\"])*\"(\\s*:)?|\\b(true|false|null)\\b|-?\\d+(?:\\.\\d*)?(?:[eE][+-]?\\d+)?)/g, function (match) { // eslint-disable-line prefer-named-capture-group\n                let cls = 'number'\n                if ((/^\"/).test(match)) {\n                    if ((/:$/).test(match)) {\n                        cls = 'key'\n                    } else {\n                        cls = 'string'\n                    }\n                } else if ((/true|false/).test(match)) {\n                    cls = 'boolean'\n                } else if ((/null/).test(match)) {\n                    cls = 'null'\n                }\n                return `<span class=\"${cls}\">${match}</span>`\n            })\n        } catch (e) {\n            json = `Syntax Highlight ERROR: ${e.message}`\n        }\n    }\n    return json\n}\n\n/** msg._ui handling functions */\nconst _ui = new Ui(window, log, syntaxHighlight)\n\n//#endregion --- Module-level utility functions --- //\n\n/** Define and export the Uib class - note that an instance of the class is also exported in the wrap-up\n * @typicalname uibuilder\n */\nexport const Uib = class Uib {\n\n    //#region --- Static variables ---\n    static _meta = {\n        version: version,\n        type: 'module',\n        displayName: 'uibuilder',\n    }\n    //#endregion ---- ---- ---- ----\n\n    //#region private class vars\n\n    // How many times has the loaded instance connected to Socket.IO (detect if not a new load?)\n    connectedNum = 0\n    // event listener callbacks by property name\n    // #events = {}\n    // Socket.IO channel names\n    _ioChannels = { control: 'uiBuilderControl', client: 'uiBuilderClient', server: 'uiBuilder' }\n    /** setInterval holder for pings @type {function|undefined} */\n    #pingInterval\n    // onChange event callbacks\n    #propChangeCallbacks = {}\n    // onTopic event callbacks\n    #msgRecvdByTopicCallbacks = {}\n    // Is Vue available?\n    isVue = false\n    // What version? Set in startup if Vue is loaded. Won't always work\n    vueVersion = undefined\n    /** setInterval id holder for Socket.IO checkConnect\n     * @type {number|null}\n     */\n    #timerid = null\n    // Holds the reference ID for the internal msg change event handler so that it can be cancelled\n    #MsgHandler\n    // Placeholder for io.socket - can't make a # var until # fns allowed in all browsers\n    _socket\n    // Placeholder for an observer that watches the whole DOM for changes - can't make a # var until # fns allowed in all browsers\n    _htmlObserver\n    // Has showMsg been turned on?\n    #isShowMsg = false\n    // Has showStatus been turned on?\n    #isShowStatus = false\n    // If true, URL hash changes send msg back to node-red. Controlled by watchUrlHash()\n    #sendUrlHash = false\n    // Externally accessible command functions (NB: Case must match) - remember to update _uibCommand for new commands\n    #extCommands = [\n        'elementExists', 'get', 'getManagedVarList', 'getWatchedVars', 'htmlSend', 'include',\n        'navigate', 'scrollTo', 'set', 'showMsg', 'showStatus', 'uiGet', 'uiWatch', 'watchUrlHash',\n    ]\n\n    /** @type {{[key: string]: string}} Managed uibuilder variables */\n    #managedVars = {}\n\n    // What status variables to show via showStatus()\n    #showStatus = {\n        online: { 'var': 'online', 'label': 'Online?', 'description': 'Is the browser online?', },\n        ioConnected: { 'var': 'ioConnected', 'label': 'Socket.IO connected?', 'description': 'Is Socket.IO connected?', },\n        connectedNum: { 'var': 'connectedNum', 'label': '# reconnections', 'description': 'How many times has Socket.IO had to reconnect since last page load?', },\n\n        clientId: { 'var': 'clientId', 'label': 'Client ID', 'description': 'Static client unique id set in Node-RED. Only changes when browser is restarted.', },\n        tabId: { 'var': 'tabId', 'label': 'Browser tab ID', 'description': 'Static unique id for the browser\\'s current tab', },\n        cookies: { 'var': 'cookies', 'label': 'Cookies', 'description': 'Cookies set in Node-RED', },\n        httpNodeRoot: { 'var': 'httpNodeRoot', 'label': 'httpNodeRoot', 'description': 'From Node-RED\\' settings.js, affects URL\\'s. May be wrong for pages in sub-folders', },\n        pageName: { 'var': 'pageName', 'label': 'Page name', 'description': 'Actual name of this page', },\n\n        ioNamespace: { 'var': 'ioNamespace', 'label': 'SIO namespace', 'description': 'Socket.IO namespace - unique to each uibuilder node instance', },\n        // ioPath: { 'var': 'ioPath', 'label': 'SIO path', 'description': '', }, // no longer needed in the modern client\n        socketError: { 'var': 'socketError', 'label': 'Socket error', 'description': 'If the Socket.IO connection has failed, says why', },\n\n        msgsSent: { 'var': 'msgsSent', 'label': '# msgs sent', 'description': 'How many standard messages have been sent to Node-RED?', },\n        msgsReceived: { 'var': 'msgsReceived', 'label': '# msgs received', 'description': 'How many standard messages have been received from Node-RED?', },\n        msgsSentCtrl: { 'var': 'msgsSentCtrl', 'label': '# control msgs sent', 'description': 'How many control messages have been sent to Node-RED?', },\n        msgsCtrlReceived: { 'var': 'msgsCtrlReceived', 'label': '# control msgs received', 'description': 'How many control messages have been received from Node-RED?', },\n        originator: { 'var': 'originator', 'label': 'Node Originator', 'description': 'If the last msg from Node-RED was from a `uib-sender` node, this will be its node id so that messasges can be returned to it', },\n        topic: { 'var': 'topic', 'label': 'Default topic', 'description': 'Optional default topic to be included in outgoing standard messages', },\n\n        started: { 'var': 'started', 'label': 'Has uibuilder client started?', 'description': 'Whether `uibuilder.start()` ran successfully. This should self-run and should not need to be run manually', },\n        version: { 'var': 'version', 'label': 'uibuilder client version', 'description': 'The version of the loaded uibuilder client library', },\n        serverTimeOffset: { 'var': 'serverTimeOffset', 'label': 'Server time offset (Hrs)', 'description': 'The number of hours difference between the Node-red server and the client', },\n    }\n\n    // Track ui observers (see uiWatch)\n    #uiObservers = {}\n\n    //#endregion\n\n    //#region public class vars\n\n    // TODO Move to proper getters\n    //#region ---- Externally read-only (via .get method) ---- //\n    // version - moved to _meta\n    /** Client ID set by uibuilder on connect */\n    clientId = ''\n    /** The collection of cookies provided by uibuilder */\n    cookies = {}\n    /** Copy of last control msg object received from sever */\n    ctrlMsg = {}\n    /** Is Socket.IO client connected to the server? */\n    ioConnected = false\n    // Is the browser tab containing this page visible or not?\n    isVisible = false\n    // Remember the last page (re)load/navigation type: navigate, reload, back_forward, prerender\n    lastNavType = ''\n    /** Last std msg received from Node-RED */\n    msg = {}\n    /** number of messages sent to server since page load */\n    msgsSent = 0\n    /** number of messages received from server since page load */\n    msgsReceived = 0\n    /** number of control messages sent to server since page load */\n    msgsSentCtrl = 0\n    /** number of control messages received from server since page load */\n    msgsCtrlReceived = 0\n    /** Is the client online or offline? */\n    online = navigator.onLine\n    /** last control msg object sent via uibuilder.send() @since v2.0.0-dev3 */\n    sentCtrlMsg = {}\n    /** last std msg object sent via uibuilder.send() */\n    sentMsg = {}\n    /** placeholder to track time offset from server, see fn socket.on(ioChannels.server ...) */\n    serverTimeOffset = null\n    /** placeholder for a socket error message */\n    socketError = null\n    // tab identifier from session storage\n    tabId = ''\n    // Actual name of current page (set in constructor)\n    pageName = null\n    // Is the DOMPurify library loaded? Updated in start()\n    purify = false\n    // Is the Markdown-IT library loaded? Updated in start()\n    markdown = false\n    // Current URL hash. Initial set is done from start->watchHashChanges via a set to make it watched\n    urlHash = location.hash\n    //#endregion ---- ---- ---- ---- //\n\n    // TODO Move to proper getters/setters\n    //#region ---- Externally Writable (via .set method, read via .get method) ---- //\n    /** Default originator node id - empty string by default\n     * @type {string}\n     */\n    originator = ''\n    /** Default topic - used by send if set and no topic provided\n     * @type {(string|undefined)}\n     */\n    topic = undefined\n    //#endregion ---- ---- ---- ---- //\n\n    //#region ---- These are unlikely to be needed externally: ----\n    autoSendReady = true\n    httpNodeRoot = '' // Node-RED setting (via cookie)\n    ioNamespace = ''\n    ioPath = ''\n    retryFactor = 1.5       // starting delay factor for subsequent reconnect attempts\n    retryMs = 2000          // starting retry ms period for manual socket reconnections workaround\n    storePrefix = 'uib_'    // Prefix for all uib-related localStorage\n    started = false\n    // NOTE: These can only change when a client (re)connects\n    socketOptions = {\n        path: this.ioPath,\n        transports: ['polling', 'websocket'],\n        // Using callback so that they are updated automatically on (re)connect\n        // Only put things in here that will be valid for a websocket connected session\n        auth: (cb) => {\n            cb({ // eslint-disable-line n/no-callback-literal\n                clientVersion: version,\n                clientId: this.clientId,\n                pathName: window.location.pathname,\n                urlParams: Object.fromEntries(new URLSearchParams(location.search)),\n                pageName: this.pageName,\n                tabId: this.tabId,\n                lastNavType: this.lastNavType,\n                connectedNum: ++this.connectedNum,\n                // Used to calculate the diff between the server and client connection timestamps - reported if >1 minute\n                browserConnectTimestamp: (new Date()).toISOString(),\n            })\n        },\n        transportOptions: {\n            // Can only set headers when polling\n            polling: {\n                extraHeaders: {\n                    'x-clientid': `${Uib._meta.displayName}; ${Uib._meta.type}; ${Uib._meta.version}; ${this.clientId}`,\n                }\n            },\n        },\n    }\n    //#endregion -- not external --\n\n    //#endregion --- End of variables ---\n\n    //#region ------- Getters and Setters ------- //\n\n    // Change logging level dynamically (affects both console. and print.)\n    set logLevel(level) { logLevel = level; console.log('%c\u2757 info%c [logLevel]', `${LOG_STYLES.level} ${LOG_STYLES.info.css}`, `${LOG_STYLES.head} ${LOG_STYLES.info.txtCss}`, `Set to ${level} (${LOG_STYLES.names[level]})`) /* changeLogLevel(level)*/ }\n    get logLevel() { return logLevel }\n\n    get meta() { return Uib._meta }\n\n    /** Function to set uibuilder properties to a new value - works on any property except _* or #*\n     * Also triggers any event listeners.\n     * Example: this.set('msg', {topic:'uibuilder', payload:42});\n     * @param {string} prop Any uibuilder property who's name does not start with a _ or #\n     * @param {*} val The set value of the property or a string declaring that a protected property cannot be changed\n     * @param {boolean} [store] If true, the variable is also saved to the browser localStorage if possible\n     * @param {boolean} [autoload] If true & store is true, on load, uib will try to restore the value from the store automatically\n     * @returns {*} Input value\n     */\n    set(prop, val, store = false, autoload = false) {\n        // Check for excluded properties - we don't want people to set these\n        // if (this.#excludedSet.indexOf(prop) !== -1) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:set', `Cannot use set() on protected property \"${prop}\"`)()\n            return `Cannot use set() on protected property \"${prop}\"`\n        }\n\n        // We must add the var to the uibuilder object\n        this[prop] = val\n\n        // Keep track of all managed variables\n        this.#managedVars[prop] = prop\n\n        // If requested, save to store\n        if (store === true) this.setStore(prop, val, autoload)\n\n        log('trace', 'Uib:set', `prop set - prop: ${prop}, val: `, val, ` store: ${store}, autoload: ${autoload}`)()\n\n        // Trigger this prop's event callbacks (listeners which are set by this.onChange)\n        // this.emit(prop, val)\n\n        // trigger an event on the prop name, pass both the name and value to the event details\n        this._dispatchCustomEvent('uibuilder:propertyChanged', { 'prop': prop, 'value': val, 'store': store, 'autoload': autoload })\n\n        return val\n    }\n\n    /** Function to get the value of a uibuilder property\n     * Example: uibuilder.get('msg')\n     * @param {string} prop The name of the property to get as long as it does not start with a _ or #\n     * @returns {*|undefined} The current value of the property\n     */\n    get(prop) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:get', `Cannot use get() on protected property \"${prop}\"`)()\n            return\n        }\n        if (prop === 'version') return Uib._meta.version\n        if (prop === 'msgsCtrl') return this.msgsCtrlReceived\n        if (prop === 'reconnections') return this.connectedNum\n        if (this[prop] === undefined) {\n            log('warn', 'Uib:get', `get() - property \"${prop}\" is undefined`)()\n        }\n        return this[prop]\n    }\n\n    /** Write to localStorage if possible. console error output if can't write\n     * Also uses this.storePrefix\n     * @example\n     *   uibuilder.setStore('fred', 42)\n     *   console.log(uibuilder.getStore('fred'))\n     * @param {string} id localStorage var name to be used (prefixed with 'uib_')\n     * @param {*} value value to write to localstore\n     * @param {boolean} [autoload] If true, on load, uib will try to restore the value from the store\n     * @returns {boolean} True if succeeded else false\n     */\n    setStore(id, value, autoload = false) {\n        let autoVars = {}\n        if (autoload === true) {\n            try {\n                autoVars = this.getStore('_uibAutoloadVars') || {}\n            } catch (e) {}\n        }\n        if (typeof value === 'object') {\n            try {\n                value = JSON.stringify(value)\n            } catch (e) {\n                log('error', 'Uib:setStore', 'Cannot stringify object, not storing. ', e)()\n                return false\n            }\n        }\n        try {\n            localStorage.setItem(this.storePrefix + id, value)\n            if (autoload) {\n                autoVars[id] = id\n                try {\n                    localStorage.setItem(this.storePrefix + '_uibAutoloadVars', JSON.stringify(autoVars))\n                } catch (e) {\n                    log('error', 'Uib:setStore', 'Cannot save autoload list. ', e)()\n                }\n            }\n            this._dispatchCustomEvent('uibuilder:propertyStored', { 'prop': id, 'value': value, 'autoload': autoload })\n            return true\n        } catch (e) {\n            log('error', 'Uib:setStore', 'Cannot write to localStorage. ', e)()\n            return false\n        }\n    } // --- end of setStore --- //\n\n    /** Attempt to get and re-hydrate a key value from localStorage\n     * Note that all uib storage is automatically prefixed using this.storePrefix\n     * @param {*} id The key of the value to attempt to retrieve\n     * @returns {*|null|undefined} The re-hydrated value of the key or null if key not found, undefined on error\n     */\n    getStore(id) {\n        try {\n            // @ts-ignore\n            return JSON.parse(localStorage.getItem(this.storePrefix + id))\n        } catch (e) { }\n        try {\n            return localStorage.getItem(this.storePrefix + id)\n        } catch (e) {\n            return undefined\n        }\n    }\n\n    /** Remove a given id from the uib keys in localStorage\n     * @param {*} id The key to remove\n     */\n    removeStore(id) {\n        try {\n            localStorage.removeItem(this.storePrefix + id)\n        } catch (e) { }\n    }\n\n    /** Returns a list of uibuilder properties (variables) that can be watched with onChange\n     * @returns {{[key: string]: string}} List of uibuilder managed variables\n     */\n    getManagedVarList() {\n        return this.#managedVars\n    }\n\n    getWatchedVars() {\n        return Object.keys(this.#propChangeCallbacks)\n    }\n\n    //#endregion ------- -------- ------- //\n\n    //#region ------- Our own event handling system ---------- //\n\n    // TODO Add option to send event details back to Node-RED as uib ctrl msg\n    /** Standard fn to create a custom event with details & dispatch it\n     * @param {string} title The event name\n     * @param {*} details Any details to pass to event output\n     */\n    _dispatchCustomEvent(title, details) {\n        const event = new CustomEvent(title, { detail: details })\n        document.dispatchEvent(event)\n    }\n\n    // See the this.#propChangeCallbacks & msgRecvdByTopicCallbacks private vars\n\n    /** Register on-change event listeners for uibuilder tracked properties\n     * Make it possible to register a function that will be run when the property changes.\n     * Note that you can create listeners for non-existant properties\n     * @example: uibuilder.onChange('msg', (msg) => { console.log('uibuilder.msg changed! It is now: ', msg) })\n     *\n     * @param {string} prop The property of uibuilder that we want to monitor\n     * @param {Function} callback The function that will run when the property changes, parameter is the new value of the property after change\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelChange if you need to remove a listener\n     */\n    onChange(prop, callback) {\n        // Note: Property does not have to exist yet\n\n        // console.debug(`[Uib:onchange] pushing new callback (event listener) for property: ${prop}`)\n\n        // Create a new array or add to the array of callback functions for the property in the events object\n        // if (this.#events[prop]) {\n        //     this.#events[prop].push(callback)\n        // } else {\n        //     this.#events[prop] = [callback]\n        // }\n\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#propChangeCallbacks[prop]) this.#propChangeCallbacks[prop] = { _nextRef: 1 }\n        else this.#propChangeCallbacks[prop]._nextRef++\n\n        const nextCbRef = this.#propChangeCallbacks[prop]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const propChangeCallback = this.#propChangeCallbacks[prop][nextCbRef] = function propChangeCallback(e) {\n            // If the prop name matches the 1st arg in the onChange fn:\n            if (prop === e.detail.prop) {\n                const value = e.detail.value\n                // console.warn('[Uib:onChange:evt] uibuilder:propertyChanged. ', e.detail)\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(value, value)\n            }\n        }\n\n        document.addEventListener('uibuilder:propertyChanged', propChangeCallback)\n\n        return nextCbRef\n    } // ---- End of onChange() ---- //\n\n    cancelChange(prop, cbRef) {\n        document.removeEventListener('uibuilder:propertyChanged', this.#propChangeCallbacks[prop][cbRef])\n        delete this.#propChangeCallbacks[prop][cbRef]\n        // this.#propChangeCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Register a change callback for a specific msg.topic\n     * Similar to onChange but more convenient if needing to differentiate by msg.topic.\n     * @example: let otRef = uibuilder.onTopic('mytopic', function(){ console.log('Received a msg with msg.topic=`mytopic`. msg: ', this) })\n     * To cancel a change listener: uibuilder.cancelTopic('mytopic', otRef)\n     *\n     * @param {string} topic The msg.topic we want to listen for\n     * @param {Function} callback The function that will run when an appropriate msg is received. `this` inside the callback as well as the cb's single argument is the received msg.\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelTopic if you need to remove a listener\n     */\n    onTopic(topic, callback) {\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#msgRecvdByTopicCallbacks[topic]) this.#msgRecvdByTopicCallbacks[topic] = { _nextRef: 1 }\n        else this.#msgRecvdByTopicCallbacks[topic]._nextRef++\n\n        const nextCbRef = this.#msgRecvdByTopicCallbacks[topic]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const msgRecvdEvtCallback = this.#msgRecvdByTopicCallbacks[topic][nextCbRef] = function msgRecvdEvtCallback(e) {\n            const msg = e.detail\n            // console.log('[Uib:onTopic:evt] uibuilder:stdMsgReceived where topic matches. ', e.detail)\n            if (msg.topic === topic) {\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(msg, msg)\n            }\n        }\n\n        document.addEventListener('uibuilder:stdMsgReceived', msgRecvdEvtCallback)\n\n        return nextCbRef\n    }\n\n    cancelTopic(topic, cbRef) {\n        document.removeEventListener('uibuilder:stdMsgReceived', this.#msgRecvdByTopicCallbacks[topic][cbRef])\n        delete this.#msgRecvdByTopicCallbacks[topic][cbRef]\n        // this.#msgRecvdCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Trigger event listener for a given property\n     * Called when uibuilder.set is used\n     *\n     * @param {*} prop The property for which to run the callback functions\n     * arguments: Additional arguments contain the value to pass to the event callback (e.g. newValue)\n     */\n    // emit(prop) {\n    //     var evt = this.#events[prop]\n    //     if (!evt) {\n    //         return\n    //     }\n    //     var args = Array.prototype.slice.call(arguments, 1)\n    //     for (var i = 0; i < evt.length; i++) {\n    //         evt[i].apply(this, args)\n    //     }\n    //     log('trace', 'Uib:emit', `${evt.length} listeners run for prop ${prop} `)()\n    // }\n\n    /** Forcibly removes all event listeners from the events array\n     * Use if you need to re-initialise the environment\n     */\n    // clearEventListeners() {\n    //     this.#events = []\n    // } // ---- End of clearEventListeners() ---- //\n\n    /** Clear a single property event listeners\n     * @param {string} prop The property of uibuilder for which we want to clear the event listener\n     */\n    // clearListener(prop) {\n    //     if (this.#events[prop]) delete this.#events[prop]\n    // }\n\n    //#endregion ---------- End of event handling system ---------- //\n\n    //#region ------- General Utility Functions -------- //\n\n    /** Check supplied msg from server for a timestamp - if received, work out & store difference to browser time\n     * @param {object} receivedMsg A message object recieved from Node-RED\n     * @returns {void} Updates self.serverTimeOffset if different to previous value\n     */\n    _checkTimestamp(receivedMsg) {\n        if (Object.prototype.hasOwnProperty.call(receivedMsg, 'serverTimestamp')) {\n            const serverTimestamp = new Date(receivedMsg.serverTimestamp)\n            // @ts-ignore\n            const offset = Math.round(((new Date()) - serverTimestamp) / 3600000) // in ms /3.6m to get hours\n            if (offset !== this.serverTimeOffset) {\n                log('trace', `Uib:checkTimestamp:${this._ioChannels.server} (server)`, `Offset changed to: ${offset} from: ${this.serverTimeOffset}`)()\n                this.set('serverTimeOffset', offset)\n            }\n        }\n    }\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {*} Selected HTML element or null\n     */\n    $(cssSelector) {\n        /** @type {*} Some kind of HTML element */\n        let el = document.querySelector(cssSelector)\n\n        if (!el) {\n            log(1, 'Uib:$', `No element found for CSS selector ${cssSelector}`)()\n            return null\n        }\n\n        if ( el.nodeName === 'TEMPLATE' ) {\n            el = el.content.firstElementChild\n            if (!el) {\n                log(0, 'Uib:$', `Template selected for CSS selector ${cssSelector} but it is empty`)()\n                return null\n            }\n        }\n\n        return el\n    }\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {*} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {Array} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$(cssSelector) {\n        return Array.from(document.querySelectorAll(cssSelector))\n    }\n\n    /** Set the default originator. Set to '' to ignore. Used with uib-sender.\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    setOriginator(originator = '') {\n        this.set('originator', originator)\n    } // ---- End of setOriginator ---- //\n\n    /** HTTP Ping/Keep-alive - makes a call back to uibuilder's ExpressJS server and receives a 204 response\n     * Can be used to keep sessions alive.\n     * @example\n     *   uibuilder.setPing(2000) // repeat every 2 sec. Re-issue with ping(0) to turn off repeat.\n     *   uibuilder.onChange('ping', function(data) {\n     *      console.log('pinger', data)\n     *   })\n     * @param {number} ms Repeat interval in ms\n     */\n    setPing(ms = 0) {\n        const oReq = new XMLHttpRequest()\n        oReq.addEventListener('load', () => {\n            const headers = (oReq.getAllResponseHeaders()).split('\\r\\n')\n            const elapsedTime = Number(new Date()) - Number((oReq.responseURL.split('='))[1])\n            this.set('ping', {\n                success: !!((oReq.status === 201) || (oReq.status === 204)), // true if one of the listed codes else false\n                status: oReq.status,\n                headers: headers,\n                url: oReq.responseURL,\n                elapsedTime: elapsedTime,\n            })\n        })\n\n        if (this.#pingInterval) {\n            clearInterval(this.#pingInterval)\n            this.#pingInterval = undefined\n        }\n\n        oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n        oReq.send()\n\n        if (ms > 0) {\n            this.#pingInterval = setInterval(() => {\n                oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n                oReq.send()\n            }, ms)\n        }\n    } // ---- End of ping ---- //\n\n    log() {\n        log(...arguments)()\n    }\n\n    /** Convert JSON to Syntax Highlighted HTML\n     * @param {object} json A JSON/JavaScript Object\n     * @returns {html} Object reformatted as highlighted HTML\n     */\n    syntaxHighlight(json) {\n        return syntaxHighlight(json)\n    } // --- End of syntaxHighlight --- //\n\n    /** Copies a uibuilder variable to the browser clipboard\n     * @param {string} varToCopy The name of the uibuilder variable to copy to the clipboard\n     */\n    copyToClipboard(varToCopy) {\n        let data = ''\n        try {\n            console.log(this.get(varToCopy), JSON.stringify(this.get(varToCopy)))\n            data = JSON.stringify(this.get(varToCopy))\n        } catch (e) {\n            log('error', 'copyToClipboard', `Could not copy \"${varToCopy}\" to clipboard.`, e.message)()\n        }\n        navigator.clipboard.writeText(data)\n    } // --- End of copyToClipboard --- //\n\n    /** DEPRECATED FOR NOW - wasn't working properly.\n     * Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.\n     * Requires IntersectionObserver (available to all mainstream browsers from early 2019)\n     * Automatically sends a msg back to Node-RED.\n     * Requires the element to already exist.\n     */\n    elementIsVisible() {\n        const info = 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'\n        log('error', 'uib:elementIsVisible', info)()\n        this.send({payload: 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'})\n        return false\n    } // --- End of elementIsVisible --- //\n\n    /** Does the chosen CSS Selector currently exist?\n     * Automatically sends a msg back to Node-RED unless turned off.\n     * @param {string} cssSelector Required. CSS Selector to examine for visibility\n     * @param {boolean} [msg] Optional, default=true. If true also sends a message back to Node-RED\n     * @returns {boolean} True if the element exists\n     */\n    elementExists(cssSelector, msg = true) {\n        const el = document.querySelector(cssSelector)\n\n        let exists = false\n        if (el !== null) exists = true\n\n        if (msg === true) {\n            this.send({\n                payload: exists,\n                info: `Element \"${cssSelector}\" ${exists ? 'exists' : 'does not exist'}`\n            })\n        }\n\n        return exists\n    } // --- End of elementExists --- //\n\n    /** Only keep the URL Hash & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return '#' + url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Set up an event listener to watch for hash changes\n     * and set the watchable urlHash variable\n     */\n    _watchHashChanges() {\n        this.set('urlHash', location.hash)\n        window.addEventListener('hashchange', (event) => {\n            this.set('urlHash', location.hash)\n            if (this.#sendUrlHash === true) {\n                this.send({ topic: 'hashChange', payload: location.hash, newHash: this.keepHashFromUrl(event.newURL), oldHash: this.keepHashFromUrl(event.oldURL) })\n            }\n        })\n    }\n\n    /** Returns true/false or a default value for truthy/falsy and other values\n     * @param {string|number|boolean|*} val The value to test\n     * @param {any} deflt Default value to use if the value is not truthy/falsy\n     * @returns {boolean|any} The truth! Or the default\n     */\n    truthy(val, deflt) {\n        let ret\n        if (['on', 'On', 'ON', 'true', 'True', 'TRUE', '1', true, 1].includes(val)) ret = true\n        else if (['off', 'Off', 'OFF', 'false', 'False', 'FALSE', '0', false, 0].includes(val)) ret = false\n        else ret = deflt\n        return ret\n    }\n\n    /** Turn on/off/toggle sending URL hash changes back to Node-RED\n     * @param {string|number|boolean|undefined} [toggle] Optional on/off/etc\n     * @returns {boolean} True if we will send a msg to Node-RED on a hash change\n     */\n    watchUrlHash(toggle) {\n        this.#sendUrlHash = this.truthy(toggle, this.#sendUrlHash !== true)\n        return this.#sendUrlHash\n    }\n\n    /** Navigate to a new page or a new route (hash)\n     * @param {string} url URL to navigate to. Can be absolute or relative (to current page) or just a hash for a route change\n     * @returns {Location} The new window.location string\n     */\n    navigate(url) {\n        if (url) window.location.href = url\n        return window.location\n    }\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- UI handlers --------- //\n\n    //#region -- Direct to _ui --\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        _ui.ui(json)\n    }\n\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        _ui.replaceSlot(el, component)\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        _ui.replaceSlotMarkdown(el, component)\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        return _ui.convertMarkdown(mdText)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        return _ui.sanitiseHTML(html)\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        _ui.loadScriptSrc(url)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        _ui.loadStyleSrc(url)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        _ui.loadScriptTxt(textFn)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        _ui.loadStyleTxt(textFn)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) {\n        _ui.showDialog(type, ui, msg)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        _ui.loadui(url)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        return _ui.uiGet(cssSelector, propName)\n    }\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     */\n    async include(url, uiOptions) {\n        _ui.include(url, uiOptions)\n    }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} component Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, component) {\n        _ui.uiEnhanceElement(el, component)\n    }\n\n    //#endregion -- direct to _ui --\n\n    /** * Show/hide a display card on the end of the visible HTML that will dynamically display the last incoming msg from Node-RED\n     * The card has the id `uib_last_msg`. Updates are done from a listener set up in the start function.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showMsg(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowMsg\n        this.#isShowMsg = showHide\n        let slot = 'Waiting for a message from Node-RED'\n\n        if (this.msg && Object.keys(this.msg).length > 0) {\n            slot = this.syntaxHighlight(this.msg)\n        }\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_last_msg_wrap',\n                ],\n            })\n        } else {\n            _ui._uiReplace({\n                components: [\n                    {\n                        type: 'div',\n                        id: 'uib_last_msg_wrap',\n                        parent: parent,\n                        attributes: {\n                            title: 'Last message from Node-RED',\n                        },\n                        components: [\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.copyToClipboard(\"msg\")',\n                                    class: 'compact',\n                                    style: 'right:3em;',\n                                },\n                                slot: '\uD83D\uDCCB',\n                            },\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.showMsg()',\n                                    class: 'compact',\n                                    style: 'right:.5em;',\n                                },\n                                slot: '\u26D4',\n                            },\n                            {\n                                type: 'pre',\n                                id: 'uib_last_msg',\n                                // parent: 'uib_last_msg_wrap',\n                                attributes: {\n                                    class: 'syntax-highlight',\n                                },\n                                slot: slot,\n                            },\n                        ],\n                    },\n                ],\n            })\n        }\n\n        return showHide\n    }\n\n    /** Show a browser notification if possible.\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * @example uibuilder.notify( 'My simple message to the user' )\n     * @example uibuilder.notify( {topic: 'My Title', payload: 'My simple message to the user'} )\n     * @example uibuilder.notify( {title: 'My Title', body: 'My simple message to the user'} )\n     * @example // If config.return = true, a promise is returned.\n     * // The resolved promise is only returned if the notification is clicked by the user.\n     * // Can be used to send the response back to Node-RED\n     * uibuilder.notify(notifyConfig).then( res => uibuilder.eventSend(res) )\n     * @ref https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config data or simple message string\n     * @returns {Promise<Event>|null} A promise that resolves to the click event or null\n     */\n    notify(config) {\n        if (config.return) return _ui.notification(config)\n\n        _ui.notification(config)\n            .then( res => { // eslint-disable-line promise/always-return\n                log('info', 'Uib:notification', 'Notification completed event', res)()\n                // if (config.return) return res\n            })\n            .catch( err => {\n                log('error', 'Uib:notification', 'Notification error event', err)()\n            })\n        return null\n    }\n\n    /** Scroll the page\n     * https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollIntoView\n     * @param {string} [cssSelector] Optional. If not set, scrolls to top of page.\n     * @param {{block:(string|undefined),inline:(string|undefined),behavior:(string|undefined)}} [opts] Optional. DOM scrollIntoView options\n     * @returns {boolean} True if element was found, false otherwise\n     */\n    scrollTo(cssSelector, opts) {\n        // @ts-ignore\n        if (!opts) opts = {}\n        if (!cssSelector || cssSelector === 'top'  || cssSelector === 'start') cssSelector = 'body'\n        else if (cssSelector === 'bottom' || cssSelector === 'end') {\n            cssSelector = 'body'\n            opts.block = 'end'\n        }\n        const el = this.$(cssSelector)\n        if (el) {\n            el.scrollIntoView(opts)\n            return true\n        }\n        return false\n    }\n\n    /** Show/hide a display card on the end of the visible HTML that will dynamically display the current status of the uibuilder client\n     * The card has the id `uib_status`.\n     * The display is updated by an event listener created in the class constructor.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showStatus(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowStatus\n        this.#isShowStatus = showHide\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_status',\n                ],\n            })\n            return showHide\n        }\n\n        const root = {\n            components: [\n                {\n                    type: 'div',\n                    id: 'uib_status',\n                    parent: parent,\n                    attributes: {\n                        title: 'Current status of the uibuilder client',\n                        class: 'text-smaller',\n                    },\n                    components: [\n                        {\n                            'type': 'table',\n                            'components': [\n                                {\n                                    'type': 'tbody',\n                                    'components': []\n                                }\n                            ]\n                        }\n                    ]\n                }\n            ]\n        }\n        const details = root.components[0].components[0].components[0].components\n\n        Object.values(this.#showStatus).forEach( entry => {\n            details.push({\n                'type': 'tr',\n                'attributes': {\n                    title: entry.description,\n                },\n                'components': [\n                    {\n                        'type': 'th',\n                        'slot': entry.label,\n                    },\n                    {\n                        'type': 'td',\n                        'attributes': {\n                            'data-varType': entry.var,\n                        },\n                        'slot': entry.var === 'version' ? Uib._meta.version : JSON.stringify(this[entry.var]),\n                    }\n                ],\n            })\n        })\n\n        _ui._uiReplace(root)\n\n        return showHide\n    }\n\n    /** Use the Mutation Observer browser API to watch for changes to a single element on the page.\n     * OMG! It is sooo hard to turn the data into something that successfully serialises so it can be sent back to Node-RED!\n     * NB: Each cssSelector creates a unique watcher. Sending the same selector overwrites the previous one.\n     * @param {string} cssSelector A CSS Selector that selects the element to watch for changes\n     * @param {boolean|\"toggle\"} [startStop] true=start watching the DOM, false=stop. Default='toggle'\n     * @param {boolean} [send] true=Send changes to Node-RED, false=Don't send. Default=true\n     * @param {boolean} [showLog] true=Output changes to log, false=stop. Default=true. Log level is 2 (Info)\n     * @returns {boolean} True if the watch is on, false otherwise\n     */\n    uiWatch(cssSelector, startStop = 'toggle', send = true, showLog = true) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.querySelector(cssSelector)\n        if (!targetNode) {\n            log('warn', 'uibuilder.module.js:uiWatch', `CSS Selector '${cssSelector}' not found.`)()\n            return false\n        }\n\n        if (startStop === 'toggle' || startStop === undefined || startStop === null) {\n            if (this.#uiObservers[cssSelector]) startStop = false\n            else startStop = true\n        }\n\n        // Need a ref to the Uib this\n        const that = this\n\n        if (startStop === true) {\n            // Create an observer instance\n            this.#uiObservers[cssSelector] = new MutationObserver( function( mutationList /* , observer */ ) {\n                const out = []\n\n                mutationList.forEach( mu => {\n                    // console.log({ mu })\n                    const oMu = {\n                        type: mu.type,\n                        oldValue: mu.oldValue !== null ? mu.oldValue : undefined,\n                    }\n\n                    if (mu.addedNodes.length > 0) {\n                        oMu.addedNodes = []\n                        mu.addedNodes.forEach( (an, i) => {\n                            oMu.addedNodes.push(_ui.nodeGet(mu.addedNodes[i]))\n                        })\n                    }\n\n                    if (mu.removedNodes.length > 0) {\n                        oMu.removedNodes = []\n                        mu.removedNodes.forEach( (an, i) => {\n                            oMu.removedNodes.push(_ui.nodeGet(mu.removedNodes[i]))\n                        })\n                    }\n\n                    if ( mu.type === 'attributes' ) {\n                        oMu.attributeName = mu.attributeName\n                        // @ts-ignore\n                        oMu.newValue = mu.target.attributes[mu.attributeName].value\n                    }\n\n                    out.push(oMu)\n                })\n\n                // Custom event\n                that._dispatchCustomEvent('uibuilder:domChange', out)\n                // Send a msg back to node-red\n                if (send === true) {\n                    that.send({\n                        _ui: {\n                            cssSelector: cssSelector,\n                            uiChanges: out\n                        },\n                        topic: that.topic || `DOM Changes for '${cssSelector}'`,\n                    })\n                }\n                // Log to info\n                if (showLog === true) {\n                    log('info', 'uibuilder.module.js:uiWatch', `DOM Changes for '${cssSelector}'`, { uiChanges: out }, { mutationList })()\n                }\n            } )\n\n            // Start observing the target node for configured mutations\n            this.#uiObservers[cssSelector].observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:uiWatch', `Started Watching DOM changes for '${cssSelector}'`)()\n        } else {\n            this.#uiObservers[cssSelector].disconnect()\n            delete this.#uiObservers[cssSelector]\n            log('trace', 'uibuilder.module.js:uiWatch', `Stopped Watching DOM changes for '${cssSelector}'`)()\n        }\n\n        return startStop\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- HTML cache and DOM watch --------- //\n\n    /** Clear the saved DOM from localStorage */\n    clearHtmlCache() {\n        this.removeStore('htmlCache')\n        log('trace', 'uibuilder.module.js:clearHtmlCache', 'HTML cache cleared')()\n    }\n\n    /** Restore the complete DOM (the whole web page) from browser localStorage if available */\n    restoreHtmlFromCache() {\n        // Is the html cached? If so, restore it\n        const htmlCache = this.getStore('htmlCache')\n        if (htmlCache) {\n            const targetNode = document.getElementsByTagName('html')[0]\n            // Restore the entire HTML\n            targetNode.innerHTML = htmlCache\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'Restored HTML from cache')()\n        } else {\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'No cache to restore')()\n        }\n    }\n\n    /** Save the current DOM state to browser localStorage.\n     * localStorage is persistent and so can be recovered even after a browser restart.\n     */\n    saveHtmlCache() {\n        // Save the updated entire HTML in localStorage\n        this.setStore('htmlCache', document.documentElement.innerHTML)\n    }\n\n    /** Use the Mutation Observer browser API to watch for and save changes to the HTML\n     * Once the observer is created, it will be reused.\n     * Sending true or undefined will turn on the observer, false turns it off.\n     * saveHtmlCache is called whenever anything changes in the dom. This allows\n     * users to call restoreHtmlFromCache() on page load if desired to completely reload\n     * to the last saved state.\n     * @param {boolean} startStop true=start watching the DOM, false=stop\n     */\n    watchDom(startStop) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.documentElement\n\n        // Need a ref to the Uib this\n        const that = this\n\n        // Create an observer instance\n        if (!this._htmlObserver) {\n            this._htmlObserver = new MutationObserver( function(/* mutationList, observer */) {\n                // We don't need to know the details - so kill off any outstanding mutation records\n                this.takeRecords()\n                // Save the updated entire HTML in localStorage\n                that.saveHtmlCache()\n            } )\n        }\n\n        if (startStop === true || startStop === undefined) {\n            // Start observing the target node for configured mutations\n            this._htmlObserver.observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:watchDom', 'Started Watching and saving DOM changes')()\n        } else {\n            this._htmlObserver.disconnect()\n            log('trace', 'uibuilder.module.js:watchDom', 'Stopped Watching and saving DOM changes')()\n        }\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- Message Handling (To/From Node-RED) -------- //\n\n    /** Internal send fn. Send a standard or control msg back to Node-RED via Socket.IO\n     * NR will generally expect the msg to contain a payload topic\n     * @param {object} msgToSend The msg object to send.\n     * @param {string} [channel=uiBuilderClient] The Socket.IO channel to use, must be in self.ioChannels or it will be ignored\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    _send(msgToSend, channel, originator = '') {\n        if (channel === null || channel === undefined) channel = this._ioChannels.client\n\n        // Make sure msgToSend is an object\n        if (channel === this._ioChannels.client) {\n            msgToSend = makeMeAnObject(msgToSend, 'payload')\n        } else if (channel === this._ioChannels.control) {\n            msgToSend = makeMeAnObject(msgToSend, 'uibuilderCtrl')\n            if (!Object.prototype.hasOwnProperty.call(msgToSend, 'uibuilderCtrl')) {\n                msgToSend.uibuilderCtrl = 'manual send'\n            }\n            // help remember where this came from as ctrl msgs can come from server or client\n            msgToSend.from = 'client'\n        }\n\n        /** since 2020-01-02 Added _socketId which should be the same as the _socketId on the server */\n        msgToSend._socketId = this._socket.id\n\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n\n        // Add the originator metadata if required\n        if (originator === '' && this.originator !== '') originator = this.originator\n        if (originator !== '') Object.assign(msgToSend, { '_uib': { 'originator': originator } })\n\n        // If the msg does not have a topic - see if we want to add one\n        if ( !Object.prototype.hasOwnProperty.call(msgToSend, 'topic') ) {\n            // From the default (`uibuilder.set('topic', 'some topic')`)\n            if (this.topic !== undefined && this.topic !== '') msgToSend.topic = this.topic\n            else {\n                // Did the last inbound msg have a topic?\n                if ( Object.prototype.hasOwnProperty.call(this, 'msg') && Object.prototype.hasOwnProperty.call(this.msg, 'topic') ) {\n                    msgToSend.topic = this.msg.topic\n                }\n            }\n        }\n\n        // If a standard send & _ui property exists, make sure to add _ui.from = 'client'\n        if (msgToSend._ui) msgToSend._ui.from = 'client'\n\n        // Track how many messages have been sent & last msg sent\n        let numMsgs\n        if (channel === this._ioChannels.client) {\n            this.set('sentMsg', msgToSend)\n            numMsgs = this.set('msgsSent', ++this.msgsSent)\n        } else if (channel === this._ioChannels.control) {\n            this.set('sentCtrlMsg', msgToSend)\n            numMsgs = this.set('msgsSentCtrl', ++this.msgsSentCtrl)\n        }\n        log('trace', 'Uib:_send', ` Channel '${channel}'. Sending msg #${numMsgs}`, msgToSend)()\n\n        this._socket.emit(channel, msgToSend)\n    } // --- End of Send Msg Fn --- //\n\n    /** Send a standard message to NR\n     * @example uibuilder.send({payload:'Hello'})\n     * @param {object} msg Message to send\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    send(msg, originator = '') {\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Send a control msg to NR\n     * @param {object} msg Message to send\n     */\n    sendCtrl(msg) {\n        this._send(msg, this._ioChannels.control)\n    }\n\n    /** Easily send a msg back to Node-RED on a DOM event\n     * @example In plain HTML/JavaScript\n     *    `<button id=\"button1\" name=\"button 1\" data-fred=\"jim\"></button>`\n     *    $('#button1').onclick = (evt) => {\n     *      uibuilder.eventSend(evt)\n     *    }\n     * @example\n     * In VueJS: `<b-button id=\"myButton1\" @click=\"doEvent\" data-something=\"hello\"></b-button>`\n     * In VueJS methods: `doEvent: uibuilder.eventSend,`\n     *\n     * All `data-` attributes will be passed back to Node-RED,\n     *    use them instead of arguments in the click function.\n     *    All target._ui custom properties are also passed back to Node-RED.\n     *\n     * @param {MouseEvent|any} domevent DOM Event object\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    eventSend(domevent, originator = '') { // eslint-disable-line sonarjs/cognitive-complexity\n        // @ts-ignore Handle case where vue messes up `this`\n        if ( this.$attrs ) {\n            log('error', 'Uib:eventSend', '`this` has been usurped by VueJS. Make sure that you wrap the call in a function: `doEvent: function (event) { uibuilder.eventSend(event) },`' )()\n            return\n        }\n        if (!domevent && !event) {\n            log('warn', 'Uib:eventSend', 'Neither the domevent nor the hidden event properties are set. You probably called this function directly rather than applying to an on click event.' )()\n            return\n        }\n        // Handle no argument, e.g. <button onClick=\"uibuilder.eventSend()\"> - event is a hidden variable when fn used in addEventListener\n        if (!domevent || !domevent.constructor) domevent = event\n\n        // The argument must be a DOM event\n        if ((!domevent.constructor.name.endsWith('Event')) || (!domevent.currentTarget)) {\n            log('warn', 'Uib:eventSend', `ARGUMENT NOT A DOM EVENT - use data attributes not function arguments to pass data. Arg Type: ${domevent.constructor.name}`, domevent)()\n            return\n        }\n\n        // Prevent default event action\n        domevent.preventDefault()\n\n        // The target element\n        const target = domevent.currentTarget\n\n        // Get target properties - only shows custom props not element default ones\n        const props = {}\n        Object.keys(target).forEach( key => {\n            if (key.startsWith('_')) return // Exclude private\n            props[key] = target[key]\n        })\n\n        // Attempt to get target attributs - can fail for certain target types\n        const ignoreAttribs = ['class', 'id', 'name']\n        let attribs\n        try {\n            attribs = Object.assign({},\n                ...Array.from(target.attributes,\n                    ( { name, value } ) => {\n                        if ( !ignoreAttribs.includes(name) ) {\n                            return ({ [name]: value })\n                        }\n                        return undefined\n                    }\n                )\n            )\n        } catch (e) {}\n\n        // If target embedded in a form, include the form data\n        let form\n        const frmVals = []\n        if ( target.form ) {\n            form = {}\n            form.valid = target.form.checkValidity()\n            Object.values(target.form).forEach( (frmEl, i) => {\n                const id = frmEl.id !== '' ? frmEl.id : (frmEl.name !== '' ? frmEl.name : `${i}-${frmEl.type}`)\n\n                // We must have both an element id (we may have forced one above) AND\n                // the element type MUST be not undefined - to allow for the extra properties added by frameworks such as Svelte\n                if (id !== '' && frmEl.type) {\n                    // Stupid HTML doesn't use value attrib for checkboxes. So override if value is set to default\n                    if ('checked' in frmEl && frmEl.value === 'on') frmEl.value = frmEl.checked.toString()\n\n                    frmVals.push( { key: id, val: frmEl.value } ) // simplified for addition to msg.payload\n\n                    form[id] = {\n                        'id': frmEl.id,\n                        'name': frmEl.name,\n                        'value': frmEl.value,\n                        'valid': frmEl.checkValidity(),\n                        'type': frmEl.type,\n                    }\n\n                    if (form[id].valid === false) {\n                        const v = frmEl.validity\n                        form[id].validity = {\n                            badInput: v.badInput === true ? v.badInput : undefined,\n                            customError: v.customError === true ? v.customError : undefined,\n                            patternMismatch: v.patternMismatch === true ? v.patternMismatch : undefined,\n                            rangeOverflow: v.rangeOverflow === true ? v.rangeOverflow : undefined,\n                            rangeUnderflow: v.rangeUnderflow === true ? v.rangeUnderflow : undefined,\n                            stepMismatch: v.stepMismatch === true ? v.stepMismatch : undefined,\n                            tooLong: v.tooLong === true ? v.tooLong : undefined,\n                            tooShort: v.tooShort === true ? v.tooShort : undefined,\n                            typeMismatch: v.typeMismatch === true ? v.typeMismatch : undefined,\n                            valueMissing: v.valueMissing === true ? v.valueMissing : undefined,\n                        }\n                    }\n\n                    if (frmEl.dataset) form[id].data = frmEl.dataset\n                }\n            })\n        }\n\n        // Check for CSS Classes\n        let classes\n        try {\n            classes = Array.from(target.classList)\n        } catch (e) {}\n\n        // Each `data-xxxx` attribute is added as a property\n        let payload = { ...target.dataset }\n\n        // Handle Notification events\n        let nprops\n        if ( Object.prototype.toString.call(target) === '[object Notification]') {\n            // Fixed payload for convenience\n            payload = `notification-${target.userAction}`\n            // Capture the notification properties\n            nprops = {\n                // userAction: target.userAction, // uib custom prop: click, close or error\n                actions: target.actions,\n                badge: target.badge,\n                body: target.body,\n                data: target.data,\n                dir: target.dir,\n                icon: target.icon,\n                image: target.image,\n                lang: target.lang,\n                renotify: target.renotify,\n                requireInteraction: target.requireInteraction,\n                silent: target.silent,\n                tag: target.tag,\n                timestamp: target.timestamp,\n                title: target.title,\n                vibrate: target.vibrate,\n            }\n        }\n        // console.log(Object.prototype.toString.call(target))\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            // - this may be an empty Object if no data attributes defined\n            payload: payload,\n\n            _ui: {\n                type: 'eventSend',\n                id: target.id !== '' ? target.id : undefined,\n                name: target.name !== '' ? target.name : undefined,\n                slotText: target.textContent ? target.textContent.substring(0, 255) : undefined,\n\n                form: form,\n                props: props,\n                attribs: attribs,\n                classes: classes,\n\n                notification: nprops,\n\n                event: domevent.type,\n                altKey: domevent.altKey,\n                ctrlKey: domevent.ctrlKey,\n                shiftKey: domevent.shiftKey,\n                metaKey: domevent.metaKey,\n\n                pointerType: domevent.pointerType,\n                nodeName: target.nodeName,\n\n                clientId: this.clientId,\n                pageName: this.pageName,\n                tabId: this.tabId,\n            }\n        }\n\n        if (frmVals.length > 0) {\n            frmVals.forEach( entry => {\n                msg.payload[entry.key] = entry.val\n            })\n        }\n\n        if (domevent.type === 'change') {\n            // Checkboxes don't have a value!!\n            msg._ui.newValue = msg.payload.value = 'checked' in target ? target.checked : domevent.target.value\n        }\n\n        log('trace', 'Uib:eventSend', 'Sending msg to Node-RED', msg)()\n        if (target.dataset && target.dataset.length === 0) log('warn', 'Uib:eventSend', 'No payload in msg. data-* attributes should be used.')()\n\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Easily send the entire DOM/HTML msg back to Node-RED\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     * @param {boolean} [send] If true (default) directly send response to Node-RED. Is false when calling from Node-RED as a command.\n     * @returns {string} The HTML as a string\n     */\n    htmlSend(originator = '', send = true) {\n        const out = `<!doctype html>\\n${document.documentElement.outerHTML}`\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            payload: out,\n            length: out.length,\n            topic: this.topic,\n        }\n\n        log('trace', 'Uib:htmlSend', 'Sending full HTML to Node-RED', msg)()\n\n        if (send === true) this._send(msg, this._ioChannels.client, originator)\n        return out\n    }\n\n    /** Process msg._uib.command - Remember to update #extCommands with new allowed commands\n     * @param {object} msg Msg from Node-RED containing a msg._uib object\n     */\n    _uibCommand(msg) {\n        if (!msg._uib || !msg._uib.command) {\n            log('error', 'uibuilder:_uibCommand', 'Invalid command message received', { msg })()\n            msg.payload = msg.error = 'Invalid command message received'\n            this.send(msg)\n            return\n        }\n        const cmd = msg._uib.command\n        // Disallowed command request outputs error and ignores the msg (NB: Case must match)\n        if (!this.#extCommands.includes(cmd.trim())) {\n            log('error', 'Uib:_uibCommand', `Command '${cmd} is not allowed to be called externally`)()\n            return\n        }\n        const prop = msg._uib.prop\n        const value = msg._uib.value\n        const quiet = msg._uib.quiet ?? false\n        let response, info\n\n        // Don't forget to update `#extCommands`, `docs/client-docs/control-from-node-red.md` & `functions.md`\n        switch (cmd) {\n            case 'elementIsVisible': {\n                response = this.elementIsVisible(prop)\n                // info = `Element \"${prop}\" ${response ? 'is visible' : 'is not visible'}`\n                break\n            }\n\n            case 'elementExists': {\n                response = this.elementExists(prop, false)\n                info = `Element \"${prop}\" ${response ? 'exists' : 'does not exist'}`\n                break\n            }\n\n            case 'get': {\n                response = this.get(prop)\n                break\n            }\n\n            case 'getManagedVarList': {\n                if (prop === 'full') response = this.getManagedVarList()\n                else response = Object.values(this.getManagedVarList())\n                break\n            }\n\n            case 'getWatchedVars': {\n                if (prop === 'full') response = this.getWatchedVars()\n                else response = Object.values(this.getWatchedVars())\n                break\n            }\n\n            case 'htmlSend': {\n                response = this.htmlSend('', false)\n                break\n            }\n\n            case 'include': {\n                // include is async\n                response = _ui.include(prop, value)\n                break\n            }\n\n            case 'navigate': {\n                let newUrl\n                if (prop) newUrl = prop\n                else if (value) newUrl = value\n                response = this.navigate(newUrl)\n                break\n            }\n\n            case 'scrollTo': {\n                response = this.scrollTo(prop, value)\n                break\n            }\n\n            case 'set': {\n                let store = false\n                let autoload = false\n                if (msg._uib.options && msg._uib.options.store) {\n                    if (msg._uib.options.store === true) store = true\n                    if (msg._uib.options.autoload === true) autoload = true\n                }\n                response = this.set(prop, value, store, autoload)\n                break\n            }\n\n            case 'showMsg': {\n                response = this.showMsg(value, prop)\n                break\n            }\n\n            case 'showStatus': {\n                response = this.showStatus(value, prop)\n                break\n            }\n\n            case 'uiGet': {\n                response = _ui.uiGet(prop, value)\n                break\n            }\n\n            case 'uiWatch': {\n                response = this.uiWatch(prop)\n                break\n            }\n\n            case 'watchUrlHash': {\n                response = this.watchUrlHash(prop)\n                break\n            }\n\n            default: {\n                log('warning', 'Uib:_uibCommand', `Command '${cmd}' not yet implemented`)()\n                break\n            }\n        }\n\n        if (quiet !== true) {\n            if (response === undefined) {\n                response = `'${prop}' is undefined`\n            }\n            if (Object(response).constructor === Promise) {\n                // response = `'${cmd} ${prop}' submitted. Cmd is async, no response available`\n                response\n                    .then( (/** @type {any} */ data) => {\n                        msg.payload = msg._uib.response = data\n                        msg.info = msg._uib.info = info\n                        if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                        this.send(msg)\n                        return true\n                    })\n                    .catch( err => {\n                        log(0, 'Uib:_uibCommand', 'Error: ', err)()\n                    })\n            } else {\n                msg.payload = msg._uib.response = response\n                msg.info = msg._uib.info = info\n                if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                this.send(msg)\n            }\n        }\n    } // --- end of _uibCommand ---\n\n    /** Do we want to process something? Check pageName, clientId, tabId. Defaults to yes.\n     * @param {*} obj Either a msg._ui or msg._uib object to check\n     * @returns {boolean} True if we should process the inbound _ui/_uib msg, false if not.\n     */\n    _forThis(obj) {\n        let r = true\n\n        // Is this msg for this pageName?\n        if (obj.pageName && obj.pageName !== this.pageName) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this page')()\n            r = false\n        }\n\n        // Is this msg for this clientId?\n        if (obj.clientId && obj.clientId !== this.clientId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this clientId')()\n            r = false\n        }\n\n        // Is this msg for this tabId?\n        if (obj.tabId && obj.tabId !== this.tabId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this tabId')()\n            r = false\n        }\n\n        return r\n    }\n\n    // Handle received messages - Process some msgs internally, emit specific events on document that make it easy for coders to use\n    _msgRcvdEvents(msg) {\n        // Message received\n        this._dispatchCustomEvent('uibuilder:stdMsgReceived', msg)\n\n        // Topic\n        if ( msg.topic ) this._dispatchCustomEvent(`uibuilder:msg:topic:${msg.topic}`, msg)\n\n        // Handle msg._uib special requests\n        if (msg._uib) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._uib)) return\n\n            /** Process a client reload request from Node-RED - as the page is reloaded, everything else is ignored\n             * Note that msg._ui.reload is also actioned via the _ui processing below */\n            if (msg._uib.reload === true) {\n                log('trace', 'Uib:_msgRcvdEvents:_uib:reload', 'reloading')()\n                location.reload()\n                return\n            }\n\n            // Process msg._uib.command messages - allows Node-RED to run uibuilder FE functions\n            if (msg._uib.command) {\n                this._uibCommand(msg)\n                return\n            }\n\n            // Better to request via msg._ui - these are for backwards compatibility\n            if ( msg._uib.componentRef === 'globalNotification' ) {\n                _ui.showDialog('notify', msg._uib.options, msg)\n            }\n            if ( msg._uib.componentRef === 'globalAlert' ) {\n                _ui.showDialog('alert', msg._uib.options, msg)\n            }\n        }\n\n        // Handle msg._ui requests\n        if ( msg._ui ) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._ui)) return\n\n            log('trace', 'Uib:_msgRcvdEvents:_ui', 'Calling _uiManager')()\n            this._dispatchCustomEvent('uibuilder:msg:_ui', msg)\n            _ui._uiManager(msg)\n        }\n    } // --- end of _msgRcvdEvents ---\n\n    /** Callback handler for messages from Node-RED\n     * NOTE: `this` is the class here rather the `socket` as would be normal since we bind the correct `this` in the call.\n     *       Use this._socket if needing reference to the socket.\n     * @callback ioSetupFromServer Called from ioSetup/this._socket.on(this.#ioChannels.server, this.stdMsgFromServer.bind(this))\n     * @param {object} receivedMsg The msg object from Node-RED\n     * @this Uib\n     */\n    _stdMsgFromServer(receivedMsg) {\n\n        // Make sure that msg is an object & not null\n        receivedMsg = makeMeAnObject(receivedMsg, 'payload')\n\n        // Don't process if the inbound msg is not for us\n        if (receivedMsg._uib && !this._forThis(receivedMsg._uib)) return\n        if (receivedMsg._ui && !this._forThis(receivedMsg._ui)) return\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedMsg)\n\n        // Track how many messages have been received\n        this.set('msgsReceived', ++this.msgsReceived)\n\n        // Emit specific document events on msg receipt that make it easy for coders to use\n        this._msgRcvdEvents(receivedMsg)\n\n        if ( !('_ui' in receivedMsg && !('payload' in receivedMsg)) ) {\n            // Save the msg for further processing\n            this.set('msg', receivedMsg)\n        }\n\n        log('info', 'Uib:ioSetup:stdMsgFromServer', `Channel '${this._ioChannels.server}'. Received msg #${this.msgsReceived}.`, receivedMsg)()\n\n        // ! NOTE: Don't try to handle specialist messages here. See _msgRcvdEvents.\n\n    } // -- End of websocket receive DATA msg from Node-RED -- //\n\n    /** Handles original control msgs (not to be confused with \"new\" msg._uib controls)\n     * @param {*} receivedCtrlMsg The msg received on the socket.io control channel\n     */\n    _ctrlMsgFromServer(receivedCtrlMsg) {\n\n        // Make sure that msg is an object & not null\n        if (receivedCtrlMsg === null) {\n            receivedCtrlMsg = {}\n        } else if (typeof receivedCtrlMsg !== 'object') {\n            const msg = {}\n            msg['uibuilderCtrl:' + this._ioChannels.control] = receivedCtrlMsg\n            receivedCtrlMsg = msg\n        }\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedCtrlMsg)\n\n        this.set('ctrlMsg', receivedCtrlMsg)\n        this.set('msgsCtrlReceived', ++this.msgsCtrlReceived)\n\n        log('trace', 'Uib:ioSetup:_ctrlMsgFromServer', `Channel '${this._ioChannels.control}'. Received control msg #${this.msgsCtrlReceived}`, receivedCtrlMsg)()\n\n        /** Process control msg types */\n        switch (receivedCtrlMsg.uibuilderCtrl) {\n            // Node-RED is shutting down\n            case 'shutdown': {\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, '\u274C Received \"shutdown\" from server')()\n                this.set('serverShutdown', undefined)\n                break\n            }\n\n            /** We are connected to the server - 1st msg from server */\n            case 'client connect': {\n                log('trace', `Uib:ioSetup:${this._ioChannels.control}`, 'Received \"client connect\" from server')()\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, `\u2705 Server connected. Version: ${receivedCtrlMsg.version}\\nServer time: ${receivedCtrlMsg.serverTimestamp}, Sever time offset: ${this.serverTimeOffset} hours`)()\n\n                if ( !Uib._meta.version.startsWith(receivedCtrlMsg.version.split('-')[0]) ) {\n                    log('warn', `Uib:ioSetup:${this._ioChannels.control}`, `Server version (${receivedCtrlMsg.version}) not the same as the client version (${Uib._meta.version})`)()\n                }\n\n                if (this.autoSendReady === true) { // eslint-disable-line no-lonely-if\n                    log('trace', `Uib:ioSetup:${this._ioChannels.control}/client connect`, 'Auto-sending ready-for-content/replay msg to server')\n                    // @since 0.4.8c Add cacheControl property for use with node-red-contrib-infocache\n                    // @since 6.1.0 Don't bother, we use the \"client connect\" msg\n                    // this._send({\n                    //     'uibuilderCtrl': 'ready for content',\n                    //     'cacheControl': 'REPLAY',\n                    // }, this._ioChannels.control)\n                }\n\n                break\n            }\n\n            default: {\n                log('trace', `uibuilderfe:ioSetup:${this._ioChannels.control}`, `Received ${receivedCtrlMsg.uibuilderCtrl} from server`)\n                // Anything else to do for other control msgs?\n            }\n\n        } // ---- End of process control msg types ---- //\n\n    } // -- End of websocket receive CONTROL msg from Node-RED -- //\n\n    /** Send log text to uibuilder's beacon endpoint (works even if socket.io not connected)\n     * @param {string} txtToSend Text string to send\n     * @param {string|undefined} logLevel Log level to use. If not supplied, will default to debug\n     */\n    beaconLog(txtToSend, logLevel) {\n        if (!logLevel) logLevel = 'debug'\n        navigator.sendBeacon('./_clientLog', `${logLevel}::${txtToSend}`)\n    }\n\n    /** Send log info back to Node-RED over uibuilder's websocket control output (Port #2)\n     * @param {...*} arguments All arguments passed to the function are added to the msg.payload\n     */\n    logToServer() {\n        this.sendCtrl({\n            uibuilderCtrl: 'client log message',\n            payload: arguments,\n            // \"version\":\"6.1.0-iife.min\",\n            _socketId: this._socket.id,\n            // \"ip\":\"::1\",\n            clientId: this.clientId,\n            tabId: this.tabId,\n            // \"url\":\"esp-test\",\n            pageName: this.pageName,\n            connections: this.connectedNum,\n            lastNavType: this.lastNavType,\n        })\n    }\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Socket.IO -------- //\n\n    /** Return the Socket.IO namespace\n     * The cookie method is the most reliable but this falls back to trying to work it\n     * out from the URL if cookies not available. That won't work if page is in a sub-folder.\n     * since 2017-10-21 Improve method to cope with more complex paths - thanks to Steve Rickus @shrickus\n     * since 2017-11-10 v1.0.1 Check cookie first then url. cookie works even if the path is more complex (e.g. sub-folder)\n     * since 2020-01-25 Removed httpRoot from namespace to prevent proxy induced errors\n     * @returns {string} Socket.IO namespace\n     */\n    _getIOnamespace() {\n\n        let ioNamespace\n\n        /** Try getting the namespace cookie. */\n        ioNamespace = this.cookies['uibuilder-namespace']\n\n        // if it wasn't available, try using the current url path\n        if (ioNamespace === undefined || ioNamespace === '') {\n            // split url path & eliminate any blank elements, and trailing or double slashes\n            const u = window.location.pathname.split('/')\n                .filter(function (t) { return t.trim() !== '' })\n\n            /** since v2.0.5 Extra check for 0 length, Issue #73. since 2017-11-06 If the last element of the path is an .html file name, remove it */\n            if (u.length > 0 && (u[u.length - 1].endsWith('.html'))) u.pop()\n\n            // Get the last part of the url path, this MUST match the namespace in uibuilder\n            ioNamespace = u.pop()\n\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via url path: ${ioNamespace}`)()\n        } else {\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via cookie: ${ioNamespace}`)()\n        }\n\n        this.url = ioNamespace\n        // Namespace HAS to start with a /\n        ioNamespace = '/' + ioNamespace\n\n        log('trace', 'uibuilder.module.js:getIOnamespace', `Final Socket.IO namespace: ${ioNamespace}`)()\n\n        return ioNamespace\n    } // --- End of set IO namespace --- //\n\n    /** Function used to check whether Socket.IO is connected to the server, reconnect if not (recursive)\n     * @param {number} [delay] Initial delay before checking (ms). Default=2000ms\n     * @param {number} [factor] Multiplication factor for subsequent checks (delay*factor). Default=1.5\n     * @param {number} [depth] Recursion depth\n     * @returns {boolean|undefined} Whether or not Socket.IO is connected to uibuilder in Node-RED\n     */\n    _checkConnect(delay, factor, depth = 1) {\n        if ( navigator.onLine === false ) return // Don't bother if we know we are offline\n\n        if (!delay) delay = this.retryMs\n        if (!factor) factor = this.retryFactor\n\n        log('trace', 'Uib:checkConnect', `Checking connection. Connected: ${this._socket.connected}. Timer: ${this.#timerid}. Depth: ${depth}. Delay: ${delay}. Factor: ${factor}`, this._socket)()\n\n        // If we are connected ...\n        if (this._socket.connected === true) {\n            // Clear the setTimeout\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this.set('ioConnected', true)\n            this.set('socketError', null)\n            return true\n        }\n\n        // ... we aren't connected so:\n        this.set('ioConnected', false)\n\n        // we only want one running at a time\n        if (this.#timerid) window.clearTimeout(this.#timerid)\n\n        // Create the new timer\n        this.#timerid = window.setTimeout(() => {\n            log('warn', 'Uib:checkConnect:setTimeout', `Socket.IO reconnection attempt. Current delay: ${delay}. Depth: ${depth}`)()\n\n            // this is necessary sometimes when the socket fails to connect on startup\n            this._socket.close()\n\n            // Try to reconnect\n            this._socket.connect()\n\n            // don't need to check whether we have connected as the timer will have been cleared if we have\n            this.#timerid = null\n\n            // @ts-ignore Create new timer for next time round with extended delay\n            this._checkConnect(delay * factor, factor, depth++)\n        }, delay)\n\n        return false\n    } // --- End of checkConnect Fn--- //\n\n    // See message handling section for msg receipt handlers\n\n    /** Called by _ioSetup when Socket.IO connects to Node-RED */\n    _onConnect() {\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n        log('info', 'Uib:ioSetup', `\u2705 SOCKET CONNECTED. Connection count: ${this.connectedNum}, Is a Recovery?: ${this._socket.recovered}. \\nNamespace: ${this.ioNamespace}`)()\n        this._dispatchCustomEvent('uibuilder:socket:connected', { 'numConnections': this.connectedNum, 'isRecovery': this._socket.recovered })\n\n        this._checkConnect() // resets any reconnection timers & sets connected flag\n    }\n\n    /** Called by _ioSetup when Socket.IO disconnects from Node-RED\n     * @param {string} reason Disconnection title\n     */\n    _onDisconnect(reason) {\n        // reason === 'io server disconnect' - redeploy of Node instance\n        // reason === 'transport close' - Node-RED terminating\n        // reason === 'ping timeout' - didn't receive a pong response?\n        log('info', 'Uib:ioSetup:socket-disconnect', `\u26D4 Socket Disconnected. Reason: ${reason}`)()\n\n        this._dispatchCustomEvent('uibuilder:socket:disconnected', reason)\n\n        /** A workaround for SIO's failure to reconnect after a disconnection */\n        this._checkConnect()\n    }\n\n    /** Setup Socket.io\n     * since v2.0.0-beta2 Moved to a function and called by the user (uibuilder.start()) so that namespace & path can be passed manually if needed\n     * @returns {boolean} Attaches socket.io manager to self._socket and updates self.ioNamespace & self.ioPath as needed\n     */\n    _ioSetup() {\n\n        // Just a notification, actual load is done outside the class (see start of file)\n        if (io === undefined) {\n            log('error', 'Uib:ioSetup', 'Socket.IO client not loaded, Node-RED comms will not work')()\n            return false\n        }\n\n        // If socket is already set up, close it and remove all of the listeners\n        if (this._socket) {\n            log('trace', 'Uib:ioSetup', 'Removing listeners in preparation for redoing Socket.IO connections')()\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this._socket.close()\n            this._socket.offAny()\n            this._socket = undefined\n            this.set('ioConnected', false)\n        }\n\n        // Update the URL path to make sure we have the right one\n        this.socketOptions.path = this.ioPath\n\n        // NOTE: this._socket.auth is now set by callback and so automatically updated for each client (re)connection. No need to set here\n\n        // Create the socket - make sure client uses Socket.IO version from the uibuilder module (using path)\n        log('trace', 'Uib:ioSetup', `About to create IO object. Transports: [${this.socketOptions.transports.join(', ')}]`)()\n        this._socket = io(this.ioNamespace, this.socketOptions)\n\n        /** When the socket is connected - set ioConnected flag and reset connect timer  */\n        this._socket.on('connect', this._onConnect.bind(this))\n\n        // RECEIVE a STANDARD, non-control msg from Node-RED server\n        this._socket.on(this._ioChannels.server, this._stdMsgFromServer.bind(this))\n\n        // RECEIVE a CONTROL msg from Node-RED server - see also sendCtrl()\n        this._socket.on(this._ioChannels.control, this._ctrlMsgFromServer.bind(this))\n\n        // When the socket is disconnected ..............\n        this._socket.on('disconnect', this._onDisconnect.bind(this))\n\n        // Socket.io connection error - probably the wrong ioPath - or client is offline\n        this._socket.on('connect_error', (err) => {\n            if ( navigator.onLine === false ) return // Don't bother with an error if we know we are offline\n            log('error', 'Uib:ioSetup:connect_error', `\u274C Socket.IO Connect Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket connect error processing ---\n\n        // Socket.io error - from the server (socket.use middleware triggered an error response)\n        this._socket.on('error', (err) => {\n            log('error', 'Uib:ioSetup:error', `\u274C Socket.IO Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket error processing ---\n\n        // Ensure we are connected, retry if not\n        this._checkConnect()\n\n        return true\n\n        /* We really don't need these, just for interest\n            self._socket.io.on('packet', function onPacket(data){\n                // we get one of these for each REAL msg (not ping/pong)\n                console.debug('PACKET', data)\n            })\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n                //console.dir(self._socket)\n            }) // --- End of socket pong processing ---\n            self._socket.io.on('packet', function(data){\n                // We get one of these for actual messages, not ping/pong\n                console.debug('PACKET', data)\n            })\n            self._socket.on('connect_timeout', function(timeout) {\n                console.debug('SOCKET CONNECT TIMEOUT - Namespace: ' + ioNamespace + ', Timeout: ' + timeout)\n            }) // --- End of socket connect timeout processing ---\n            self._socket.on('reconnect', function(attemptNum) {\n                console.debug('SOCKET RECONNECTED - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect processing ---\n            self._socket.on('reconnect_attempt', function(attemptNum) {\n                console.debug('SOCKET RECONNECT ATTEMPT - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect_attempt processing ---\n            self._socket.on('reconnecting', function(attemptNum) {\n                console.debug('SOCKET RECONNECTING - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnecting processing ---\n            self._socket.on('reconnect_error', function(err) {\n                console.debug('SOCKET RECONNECT ERROR - Namespace: ' + ioNamespace + ', Reason: ' + err.message)\n                //console.dir(err)\n            }) // --- End of socket reconnect_error processing ---\n            self._socket.on('reconnect_failed', function() {\n                console.debug('SOCKET RECONNECT FAILED - Namespace: ' + ioNamespace)\n            }) // --- End of socket reconnect_failed processing ---\n            self._socket.on('ping', function() {\n                console.debug('SOCKET PING')\n            }) // --- End of socket ping processing ---\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n            }) // --- End of socket pong processing ---\n            */\n    } // ---- End of ioSetup ---- //\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Class construction & startup method -------- //\n\n    constructor() {\n        log('trace', 'Uib:constructor', 'Starting')()\n\n        // Track whether the client is online or offline\n        window.addEventListener('offline', (e) => {\n            this.set('online', false)\n            this.set('ioConnected', false)\n            log('warn', 'Browser', 'DISCONNECTED from network')()\n        })\n        window.addEventListener('online', (e) => {\n            this.set('online', true)\n            log('warn', 'Browser', 'Reconnected to network')()\n            this._checkConnect()\n        })\n\n        document.cookie.split(';').forEach((c) => {\n            const splitC = c.split('=')\n            this.cookies[splitC[0].trim()] = splitC[1]\n        })\n\n        /** Client ID set by uibuilder - lasts until browser profile is closed, applies to all tabs */\n        this.set('clientId', this.cookies['uibuilder-client-id'])\n        log('trace', 'Uib:constructor', 'Client ID: ', this.clientId)()\n\n        /** Tab ID - lasts while the tab is open (even if reloaded)\n         * WARNING: Duplicating a tab retains the same tabId\n         */\n        this.set('tabId', window.sessionStorage.getItem('tabId'))\n        if (!this.tabId) {\n            this.set('tabId', `t${Math.floor(Math.random() * 1000000)}`)\n            window.sessionStorage.setItem('tabId', this.tabId)\n        }\n\n        // document.addEventListener('pagehide', (event) => {\n        //     // console.log(`pagehide. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pagehide. From Cache?: ${event.persisted}`)\n        // })\n        // document.addEventListener('pageshow', (event) => {\n        //     // console.log(`pageshow. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pageshow. From Cache?: ${event.persisted}`)\n        // })\n        document.addEventListener('load', () => {\n            this.set('isVisible', true)\n        })\n        document.addEventListener('visibilitychange', () => {\n            // hidden=unload, minimise. visible=un-minimise (not fired on load)\n            this.set('isVisible', document.visibilityState === 'visible')\n            this.sendCtrl({ uibuilderCtrl: 'visibility', isVisible: this.isVisible })\n            // navigator.userActivation is experimental Chromium only\n            // console.log('visibilitychange', ':', `Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n            // navigator.sendBeacon('./_clientLog', `${(new Date()).toISOString()} Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n        })\n\n        // Set a listener to update showStatus table if it is active\n        document.addEventListener('uibuilder:propertyChanged', (event) => {\n            if (!this.#isShowStatus) return\n\n            // @ts-ignore\n            if (event.detail.prop in this.#showStatus) {\n                // @ts-ignore\n                document.querySelector(`td[data-vartype=\"${event.detail.prop}\"]`).innerText = JSON.stringify(event.detail.value)\n            }\n        })\n\n        this.set('ioNamespace', this._getIOnamespace())\n\n        //#region - Try to make sure client uses Socket.IO client version from the uibuilder module (using cookie or path) @since v2.0.0 2019-02-24 allows for httpNodeRoot\n\n        /** httpNodeRoot (to set path) */\n        if ('uibuilder-webRoot' in this.cookies) {\n            this.set('httpNodeRoot', this.cookies['uibuilder-webRoot'])\n            log('trace', 'Uib:constructor', `httpNodeRoot set by cookie to \"${this.httpNodeRoot}\"`)()\n        } else {\n            // split current url path, eliminate any blank elements and trailing or double slashes\n            const fullPath = window.location.pathname.split('/').filter(function (t) { return t.trim() !== '' })\n            /** handle url includes file name - @since v2.0.5 Extra check for 0 length, Issue #73. */\n            if (fullPath.length > 0 && fullPath[fullPath.length - 1].endsWith('.html')) fullPath.pop()\n            fullPath.pop() // gives the last path section of the url\n            this.set('httpNodeRoot', `/${fullPath.join('/')}`)\n            log('trace', '[Uib:constructor]', `httpNodeRoot set by URL parsing to \"${this.httpNodeRoot}\". NOTE: This may fail for pages in sub-folders.`)()\n        }\n        this.set('ioPath', urlJoin(this.httpNodeRoot, Uib._meta.displayName, 'vendor', 'socket.io'))\n        log('trace', 'Uib:constructor', `ioPath: \"${this.ioPath}\"`)()\n\n        //#endregion\n\n        // Work out pageName\n        this.set('pageName', window.location.pathname.replace(`${this.ioNamespace}/`, ''))\n        if ( this.pageName.endsWith('/') ) this.set('pageName', `${this.pageName}index.html`)\n        if ( this.pageName === '' ) this.set('pageName', 'index.html')\n\n        // Attempt to restore autoload variables\n        try {\n            const autoloadVars = this.getStore('_uibAutoloadVars')\n            if (Object.keys(autoloadVars).length > 0) {\n                Object.keys(autoloadVars).forEach( (id) => {\n                    this.set(id, this.getStore(id))\n                })\n            }\n        } catch (e) {}\n\n        this._dispatchCustomEvent('uibuilder:constructorComplete')\n\n        log('trace', 'Uib:constructor', 'Ending')()\n    }\n\n    /** Start up Socket.IO comms and listeners\n     * This has to be done separately because if running from a web page in a sub-folder of src/dist, uibuilder cannot\n     * necessarily work out the correct ioPath to use.\n     * Also, if cookies aren't permitted in the browser, both ioPath and ioNamespace may need to be specified.\n     * @param {object} [options] The start options object.\n     * @returns {void}\n     */\n    start(options) {\n        log('trace', 'Uib:start', 'Starting')()\n\n        // Cancel the msg event handler if already present\n        if ( this.#MsgHandler ) this.cancelChange('msg', this.#MsgHandler)\n\n        if (this.started === true) {\n            log('info', 'Uib:start', 'Start function already called. Resetting Socket.IO and msg handler.')()\n        }\n\n        log('log', 'Uib:start', 'Cookies: ', this.cookies, `\\nClient ID: ${this.clientId}`)()\n        log('trace', 'Uib:start', 'ioNamespace: ', this.ioNamespace, `\\nioPath: ${this.ioPath}`)()\n\n        // Handle options\n        if (options) {\n            if (options.ioNamespace !== undefined && options.ioNamespace !== null && options.ioNamespace !== '') this.set('ioNamespace', options.ioNamespace)\n            if (options.ioPath !== undefined && options.ioPath !== null && options.ioPath !== '') this.set('ioPath', options.ioPath)\n            // See below for handling of options.loadStylesheet\n        }\n\n        // Do we need to load styles?\n        if ( document.styleSheets.length >= 1 || (document.styleSheets.length === 1 && document.styleSheets[0].cssRules.length === 0) ) {\n            log('info', 'Uib:start', 'Styles already loaded so not loading uibuilder default styles.')()\n        } else {\n            if (options && options.loadStylesheet === false) log('info', 'Uib:start', 'No styles loaded & options.loadStylesheet === false.')()\n            else {\n                log('info', 'Uib:start', 'No styles loaded, loading uibuilder default styles.')()\n                this.loadStyleSrc(`${this.httpNodeRoot}/uibuilder/uib-brand.min.css`)\n            }\n        }\n\n        /** Handle specialist messages like reload and _ui -> Moved to _msgRcvdEvents */\n\n        // Track last browser navigation type: navigate, reload, back_forward, prerender\n        const [entry] = performance.getEntriesByType('navigation')\n        // @ts-ignore\n        this.set('lastNavType', entry.type)\n\n        // Start up (or restart) Socket.IO connections and listeners. Returns false if io not found\n        this.set('started', this._ioSetup())\n\n        if ( this.started === true ) {\n            log('trace', 'Uib:start', 'Start completed. Socket.IO client library loaded.')()\n        } else {\n            log('error', 'Uib:start', 'Start completed. ERROR: Socket.IO client library NOT LOADED.')()\n        }\n\n        // Watch for URL hash changes in case using a front-end router. Updates watched var `urlHash` and socket.io `auth.urlHash`\n        this._watchHashChanges()\n\n        // Check if Vue is present (used for dynamic UI processing)\n        if (window['Vue']) {\n            this.set('isVue', true)\n            try {\n                this.set('vueVersion', window['Vue'].version)\n            } catch (e) { }\n            log('trace', 'Uib:start', `VueJS is loaded. Version: ${this.vueVersion}`)()\n        } else {\n            log('trace', 'Uib:start', 'VueJS is not loaded.')()\n        }\n\n        // Check if DOMPurify library is loaded\n        if (window['DOMPurify']) {\n            this.set('purify', true)\n            log('trace', 'Uib:start', 'DOMPurify is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'DOMPurify is not loaded.')()\n        }\n        // Check if Markdown-IT library is loaded\n        if (window['markdownit']) {\n            this.set('markdown', true)\n            log('trace', 'Uib:start', 'Markdown-IT is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'Markdown-IT is not loaded.')()\n        }\n\n        // if (window['DOMPurify']) {\n        //     this.set('purify', true)\n        //     log('trace', 'Uib:start', 'DOMPurify is loaded.')\n        // } else {\n        //     log('trace', 'Uib:start', 'DOMPurify is not loaded.')\n        // }\n\n        // Set up msg listener for the optional showMsg\n        this.onChange('msg', (msg) => {\n            if (this.#isShowMsg === true) {\n                const eMsg = document.getElementById('uib_last_msg')\n                if (eMsg) eMsg.innerHTML = this.syntaxHighlight(msg)\n            }\n        })\n\n        this._dispatchCustomEvent('uibuilder:startComplete')\n    }\n\n    //#endregion -------- ------------ -------- //\n} // ==== End of Class Uib ====\n\n//#region --- Wrap up - get things started ---\n\n// Create an instance (we will only ever want one)\nconst uibuilder = new Uib()\n\n// Assign reference to the instance to the global `window` object\n// Only useful if loading via <script> tag - prefer loading via `import uibuilder from ...`\nif (!window['uibuilder']) {\n    window['uibuilder'] = uibuilder\n} else {\n    log('error', 'uibuilder.module.js', '`uibuilder` already assigned to window. Have you tried to load it more than once?')\n}\nif (!window['uib']) {\n    window['uib'] = uibuilder\n} else {\n    log('warn', 'uibuilder.module.js', '`uib` shortcut already assigned to window.')\n}\n\n// Assign `$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$`.\nif (!window['$']) {\n    /** @type {HTMLElement} */\n    window['$'] = window['uibuilder'].$ // document.querySelector.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` instead.')\n}\n// Assign `$$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$$']) {\n    /** @type {HTMLElement} */\n    window['$$'] = window['uibuilder'].$$ // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` instead.')\n}\n\n// Can import as `import uibuilder from ...` OR `import {uibuilder} from ...`\nexport { uibuilder }\nexport default uibuilder\n\n// Attempt to run start fn\nuibuilder.start()\n\n// Add the class as a new Custom Element to the window object\ncustomElements.define('uib-var', UibVar)\n\n//#endregion --- Wrap up ---\n\n// EOF\n", "/** A zero dependency web component that will display a managed uibuilder variable.\n *\n * Version: 0.0.1 2023-10-07\n *\n * ToDo:\n * -\n */\n/*\n  Copyright (c) 2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n// const template = document.createElement('template')\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<link type=\"text/css\" rel=\"stylesheet\" href=\"\"../uibuilder/uib-brand.min.css\"\" media=\"all\"><span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`\n// {/* <style>@import url(\"../uibuilder/uib-brand.min.css\");</style><span></span> */}\n// `\n\nexport default class UibVar extends HTMLElement {\n    //#region --- Class Properties ---\n    /** @type {string} Name of the uibuilder mangaged variable to use */\n    variable\n    /** Current value of the watched variable */\n    value\n    /** Whether to output if the variable is undefined */\n    undefined = false\n    /** Whether to send update value to Node-RED on change */\n    report = false\n    /** What is the value type */\n    type = 'plain'\n    /** what are the available types? */\n    types = ['plain', 'html', 'markdown', 'object']\n\n    /** Mini jQuery-like shadow dom selector (see constructor) */\n    $\n    \n    /** Holds a count of how many instances of this component are on the page */\n    static _iCount = 0\n    /** @type {Array<string>} List of all of the html attribs (props) listened to */\n    static props = ['name', 'id', 'variable', 'undefined', 'report', 'type']\n    //#endregion --- Class Properties ---\n\n    constructor() {\n        super()\n        this.shadow = this.attachShadow({ mode: 'open', delegatesFocus: true })\n            // .append(template.content.cloneNode(true))\n\n        this.$ = this.shadowRoot.querySelector.bind(this.shadowRoot)\n\n        // Apply external styles to the shadow dom\n        this.css = document.createElement(\"link\")\n        this.css.setAttribute(\"type\", \"text/css\")\n        this.css.setAttribute(\"rel\", \"stylesheet\")\n        this.css.setAttribute(\"href\", \"../uibuilder/uib-brand.min.css\")\n\n        this.dispatchEvent(new Event(`uib-var:construction`, { bubbles: true, composed: true }))\n    }\n\n    // Makes HTML attribute change watched\n    static get observedAttributes() {\n        return UibVar.props\n    }\n\n    /** NOTE: On initial startup, this is called for each watched attrib set in HTML - BEFORE connectedCallback is called  */\n    attributeChangedCallback(attrib, oldVal, newVal) {\n        if ( oldVal === newVal ) return\n\n        switch (attrib) {\n            case 'variable': {\n                if (newVal === '') throw new Error('[uib-var] Attribute \"variable\" MUST be set to a UIBUILDER managed variable name')\n                this.variable = newVal\n                this.doWatch()\n                break\n            }\n            case 'undefined': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.undefined = true\n                else this.undefined = false\n                break\n            }\n            case 'report': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.report = true\n                else this.report = false\n                break\n            }\n            case 'type': {\n                if (newVal === '' || !this.types.includes(newVal.toLowerCase())) this.type = 'plain'\n                else this.type = newVal\n                break\n            }\n\n            default: {\n                this[attrib] = newVal\n                break\n            }\n        }\n    } // --- end of attributeChangedCallback --- //\n\n    // Runs when an instance is added to the DOM\n    connectedCallback() {\n        // Make sure instance has an ID. Create an id from name or calculation if needed\n        if (!this.id) {\n            if (!this.name) this.name = this.getAttribute('name')\n            if (this.name) this.id = this.name.toLowerCase().replace(/\\s/g, '_')\n            else this.id = `uib-var-${++UibVar._iCount}`\n        }\n    }  // ---- end of connectedCallback ---- //\n\n    // Runs when an instance is removed from the DOM\n    // disconnectedCallback() {} // ---- end of disconnectedCallback ---- //\n\n    /** Process changes to the required uibuilder variable */\n    doWatch() {\n        if (!this.variable) throw new Error('No variable name provided')\n        // if (!window['uibuilder']) throw new Error('UIBUILDER client library not loaded - this component must be loaded AFTER the UIBUILDER library')\n\n        this.value = window['uibuilder'].get(this.variable)\n        this.varDom()\n\n        // Watch for changes in the variable\n        window['uibuilder'].onChange(this.variable, (val) => {\n            this.value = val\n            this.varDom()\n            if (this.report === true) window['uibuilder'].send({topic: this.variable, payload: this.value || undefined})\n        })\n    }\n\n    /** Convert this.value to DOM output */\n    varDom() {\n        // If user doesn't want to show undefined vars, allow the component slot to show instead\n        if (this.value === undefined && this.undefined !== true) { \n            this.shadow.innerHTML = '<slot></slot>'\n            return\n        }\n        \n        let val = this.value\n\n        // console.log('\uD83E\uDDEA varDOM: ', val, typeof val, this.type)\n\n        switch (this.type) {\n            case 'markdown': {\n                this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(window['uibuilder'].convertMarkdown(val))\n                break\n            }\n        \n            case 'object': {\n                // console.log(window['uibuilder'].syntaxHighlight(val))\n                this.shadow.innerHTML = `<pre class=\"syntax-highlight\">${window['uibuilder'].syntaxHighlight(val)}</pre>`\n                break\n            }\n        \n            case 'plain':\n            case 'html':\n            default: {\n                const t = typeof val\n                if (Array.isArray(val) || t === '[object Object]' || t === 'object') {\n                    try {\n                        this.shadow.innerHTML = JSON.stringify(val)\n                    } catch (e) {\n                        this.shadow.innerHTML = val\n                    }\n                } else {\n                    this.shadow.innerHTML = val\n                }\n                break\n            }\n        }\n\n        this.shadow.appendChild(this.css)\n        // this.$('span').innerHTML = window['uibuilder'].sanitiseHTML(val)\n        // this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(val)\n    }\n}\n\n// Add the class as a new Custom Element to the window object \n// customElements.define('uib-var', UibVar)\n", "const PACKET_TYPES = Object.create(null); // no Map = no polyfill\nPACKET_TYPES[\"open\"] = \"0\";\nPACKET_TYPES[\"close\"] = \"1\";\nPACKET_TYPES[\"ping\"] = \"2\";\nPACKET_TYPES[\"pong\"] = \"3\";\nPACKET_TYPES[\"message\"] = \"4\";\nPACKET_TYPES[\"upgrade\"] = \"5\";\nPACKET_TYPES[\"noop\"] = \"6\";\nconst PACKET_TYPES_REVERSE = Object.create(null);\nObject.keys(PACKET_TYPES).forEach(key => {\n    PACKET_TYPES_REVERSE[PACKET_TYPES[key]] = key;\n});\nconst ERROR_PACKET = { type: \"error\", data: \"parser error\" };\nexport { PACKET_TYPES, PACKET_TYPES_REVERSE, ERROR_PACKET };\n", "import { PACKET_TYPES } from \"./commons.js\";\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        Object.prototype.toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\n// ArrayBuffer.isView method is not defined in IE10\nconst isView = obj => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj && obj.buffer instanceof ArrayBuffer;\n};\nconst encodePacket = ({ type, data }, supportsBinary, callback) => {\n    if (withNativeBlob && data instanceof Blob) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(data, callback);\n        }\n    }\n    else if (withNativeArrayBuffer &&\n        (data instanceof ArrayBuffer || isView(data))) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(new Blob([data]), callback);\n        }\n    }\n    // plain string\n    return callback(PACKET_TYPES[type] + (data || \"\"));\n};\nconst encodeBlobAsBase64 = (data, callback) => {\n    const fileReader = new FileReader();\n    fileReader.onload = function () {\n        const content = fileReader.result.split(\",\")[1];\n        callback(\"b\" + (content || \"\"));\n    };\n    return fileReader.readAsDataURL(data);\n};\nfunction toArray(data) {\n    if (data instanceof Uint8Array) {\n        return data;\n    }\n    else if (data instanceof ArrayBuffer) {\n        return new Uint8Array(data);\n    }\n    else {\n        return new Uint8Array(data.buffer, data.byteOffset, data.byteLength);\n    }\n}\nlet TEXT_ENCODER;\nexport function encodePacketToBinary(packet, callback) {\n    if (withNativeBlob && packet.data instanceof Blob) {\n        return packet.data\n            .arrayBuffer()\n            .then(toArray)\n            .then(callback);\n    }\n    else if (withNativeArrayBuffer &&\n        (packet.data instanceof ArrayBuffer || isView(packet.data))) {\n        return callback(toArray(packet.data));\n    }\n    encodePacket(packet, false, encoded => {\n        if (!TEXT_ENCODER) {\n            TEXT_ENCODER = new TextEncoder();\n        }\n        callback(TEXT_ENCODER.encode(encoded));\n    });\n}\nexport { encodePacket };\n", "// imported from https://github.com/socketio/base64-arraybuffer\nconst chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';\n// Use a lookup table to find the index.\nconst lookup = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);\nfor (let i = 0; i < chars.length; i++) {\n    lookup[chars.charCodeAt(i)] = i;\n}\nexport const encode = (arraybuffer) => {\n    let bytes = new Uint8Array(arraybuffer), i, len = bytes.length, base64 = '';\n    for (i = 0; i < len; i += 3) {\n        base64 += chars[bytes[i] >> 2];\n        base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];\n        base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];\n        base64 += chars[bytes[i + 2] & 63];\n    }\n    if (len % 3 === 2) {\n        base64 = base64.substring(0, base64.length - 1) + '=';\n    }\n    else if (len % 3 === 1) {\n        base64 = base64.substring(0, base64.length - 2) + '==';\n    }\n    return base64;\n};\nexport const decode = (base64) => {\n    let bufferLength = base64.length * 0.75, len = base64.length, i, p = 0, encoded1, encoded2, encoded3, encoded4;\n    if (base64[base64.length - 1] === '=') {\n        bufferLength--;\n        if (base64[base64.length - 2] === '=') {\n            bufferLength--;\n        }\n    }\n    const arraybuffer = new ArrayBuffer(bufferLength), bytes = new Uint8Array(arraybuffer);\n    for (i = 0; i < len; i += 4) {\n        encoded1 = lookup[base64.charCodeAt(i)];\n        encoded2 = lookup[base64.charCodeAt(i + 1)];\n        encoded3 = lookup[base64.charCodeAt(i + 2)];\n        encoded4 = lookup[base64.charCodeAt(i + 3)];\n        bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n        bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n        bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n    }\n    return arraybuffer;\n};\n", "import { ERROR_PACKET, PACKET_TYPES_REVERSE } from \"./commons.js\";\nimport { decode } from \"./contrib/base64-arraybuffer.js\";\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nexport const decodePacket = (encodedPacket, binaryType) => {\n    if (typeof encodedPacket !== \"string\") {\n        return {\n            type: \"message\",\n            data: mapBinary(encodedPacket, binaryType)\n        };\n    }\n    const type = encodedPacket.charAt(0);\n    if (type === \"b\") {\n        return {\n            type: \"message\",\n            data: decodeBase64Packet(encodedPacket.substring(1), binaryType)\n        };\n    }\n    const packetType = PACKET_TYPES_REVERSE[type];\n    if (!packetType) {\n        return ERROR_PACKET;\n    }\n    return encodedPacket.length > 1\n        ? {\n            type: PACKET_TYPES_REVERSE[type],\n            data: encodedPacket.substring(1)\n        }\n        : {\n            type: PACKET_TYPES_REVERSE[type]\n        };\n};\nconst decodeBase64Packet = (data, binaryType) => {\n    if (withNativeArrayBuffer) {\n        const decoded = decode(data);\n        return mapBinary(decoded, binaryType);\n    }\n    else {\n        return { base64: true, data }; // fallback for old browsers\n    }\n};\nconst mapBinary = (data, binaryType) => {\n    switch (binaryType) {\n        case \"blob\":\n            if (data instanceof Blob) {\n                // from WebSocket + binaryType \"blob\"\n                return data;\n            }\n            else {\n                // from HTTP long-polling or WebTransport\n                return new Blob([data]);\n            }\n        case \"arraybuffer\":\n        default:\n            if (data instanceof ArrayBuffer) {\n                // from HTTP long-polling (base64) or WebSocket + binaryType \"arraybuffer\"\n                return data;\n            }\n            else {\n                // from WebTransport (Uint8Array)\n                return data.buffer;\n            }\n    }\n};\n", "import { encodePacket, encodePacketToBinary } from \"./encodePacket.js\";\nimport { decodePacket } from \"./decodePacket.js\";\nimport { ERROR_PACKET } from \"./commons.js\";\nconst SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text\nconst encodePayload = (packets, callback) => {\n    // some packets may be added to the array while encoding, so the initial length must be saved\n    const length = packets.length;\n    const encodedPackets = new Array(length);\n    let count = 0;\n    packets.forEach((packet, i) => {\n        // force base64 encoding for binary packets\n        encodePacket(packet, false, encodedPacket => {\n            encodedPackets[i] = encodedPacket;\n            if (++count === length) {\n                callback(encodedPackets.join(SEPARATOR));\n            }\n        });\n    });\n};\nconst decodePayload = (encodedPayload, binaryType) => {\n    const encodedPackets = encodedPayload.split(SEPARATOR);\n    const packets = [];\n    for (let i = 0; i < encodedPackets.length; i++) {\n        const decodedPacket = decodePacket(encodedPackets[i], binaryType);\n        packets.push(decodedPacket);\n        if (decodedPacket.type === \"error\") {\n            break;\n        }\n    }\n    return packets;\n};\nexport function createPacketEncoderStream() {\n    return new TransformStream({\n        transform(packet, controller) {\n            encodePacketToBinary(packet, encodedPacket => {\n                const payloadLength = encodedPacket.length;\n                let header;\n                // inspired by the WebSocket format: https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API/Writing_WebSocket_servers#decoding_payload_length\n                if (payloadLength < 126) {\n                    header = new Uint8Array(1);\n                    new DataView(header.buffer).setUint8(0, payloadLength);\n                }\n                else if (payloadLength < 65536) {\n                    header = new Uint8Array(3);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 126);\n                    view.setUint16(1, payloadLength);\n                }\n                else {\n                    header = new Uint8Array(9);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 127);\n                    view.setBigUint64(1, BigInt(payloadLength));\n                }\n                // first bit indicates whether the payload is plain text (0) or binary (1)\n                if (packet.data && typeof packet.data !== \"string\") {\n                    header[0] |= 0x80;\n                }\n                controller.enqueue(header);\n                controller.enqueue(encodedPacket);\n            });\n        }\n    });\n}\nlet TEXT_DECODER;\nfunction totalLength(chunks) {\n    return chunks.reduce((acc, chunk) => acc + chunk.length, 0);\n}\nfunction concatChunks(chunks, size) {\n    if (chunks[0].length === size) {\n        return chunks.shift();\n    }\n    const buffer = new Uint8Array(size);\n    let j = 0;\n    for (let i = 0; i < size; i++) {\n        buffer[i] = chunks[0][j++];\n        if (j === chunks[0].length) {\n            chunks.shift();\n            j = 0;\n        }\n    }\n    if (chunks.length && j < chunks[0].length) {\n        chunks[0] = chunks[0].slice(j);\n    }\n    return buffer;\n}\nexport function createPacketDecoderStream(maxPayload, binaryType) {\n    if (!TEXT_DECODER) {\n        TEXT_DECODER = new TextDecoder();\n    }\n    const chunks = [];\n    let state = 0 /* READ_HEADER */;\n    let expectedLength = -1;\n    let isBinary = false;\n    return new TransformStream({\n        transform(chunk, controller) {\n            chunks.push(chunk);\n            while (true) {\n                if (state === 0 /* READ_HEADER */) {\n                    if (totalLength(chunks) < 1) {\n                        break;\n                    }\n                    const header = concatChunks(chunks, 1);\n                    isBinary = (header[0] & 0x80) === 0x80;\n                    expectedLength = header[0] & 0x7f;\n                    if (expectedLength < 126) {\n                        state = 3 /* READ_PAYLOAD */;\n                    }\n                    else if (expectedLength === 126) {\n                        state = 1 /* READ_EXTENDED_LENGTH_16 */;\n                    }\n                    else {\n                        state = 2 /* READ_EXTENDED_LENGTH_64 */;\n                    }\n                }\n                else if (state === 1 /* READ_EXTENDED_LENGTH_16 */) {\n                    if (totalLength(chunks) < 2) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 2);\n                    expectedLength = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length).getUint16(0);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else if (state === 2 /* READ_EXTENDED_LENGTH_64 */) {\n                    if (totalLength(chunks) < 8) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 8);\n                    const view = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length);\n                    const n = view.getUint32(0);\n                    if (n > Math.pow(2, 53 - 32) - 1) {\n                        // the maximum safe integer in JavaScript is 2^53 - 1\n                        controller.enqueue(ERROR_PACKET);\n                        break;\n                    }\n                    expectedLength = n * Math.pow(2, 32) + view.getUint32(4);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else {\n                    if (totalLength(chunks) < expectedLength) {\n                        break;\n                    }\n                    const data = concatChunks(chunks, expectedLength);\n                    controller.enqueue(decodePacket(isBinary ? data : TEXT_DECODER.decode(data), binaryType));\n                    state = 0 /* READ_HEADER */;\n                }\n                if (expectedLength === 0 || expectedLength > maxPayload) {\n                    controller.enqueue(ERROR_PACKET);\n                    break;\n                }\n            }\n        }\n    });\n}\nexport const protocol = 4;\nexport { encodePacket, encodePayload, decodePacket, decodePayload };\n", "/**\n * Initialize a new `Emitter`.\n *\n * @api public\n */\n\nexport function Emitter(obj) {\n  if (obj) return mixin(obj);\n}\n\n/**\n * Mixin the emitter properties.\n *\n * @param {Object} obj\n * @return {Object}\n * @api private\n */\n\nfunction mixin(obj) {\n  for (var key in Emitter.prototype) {\n    obj[key] = Emitter.prototype[key];\n  }\n  return obj;\n}\n\n/**\n * Listen on the given `event` with `fn`.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.on =\nEmitter.prototype.addEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])\n    .push(fn);\n  return this;\n};\n\n/**\n * Adds an `event` listener that will be invoked a single\n * time then automatically removed.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.once = function(event, fn){\n  function on() {\n    this.off(event, on);\n    fn.apply(this, arguments);\n  }\n\n  on.fn = fn;\n  this.on(event, on);\n  return this;\n};\n\n/**\n * Remove the given callback for `event` or all\n * registered callbacks.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.off =\nEmitter.prototype.removeListener =\nEmitter.prototype.removeAllListeners =\nEmitter.prototype.removeEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n\n  // all\n  if (0 == arguments.length) {\n    this._callbacks = {};\n    return this;\n  }\n\n  // specific event\n  var callbacks = this._callbacks['$' + event];\n  if (!callbacks) return this;\n\n  // remove all handlers\n  if (1 == arguments.length) {\n    delete this._callbacks['$' + event];\n    return this;\n  }\n\n  // remove specific handler\n  var cb;\n  for (var i = 0; i < callbacks.length; i++) {\n    cb = callbacks[i];\n    if (cb === fn || cb.fn === fn) {\n      callbacks.splice(i, 1);\n      break;\n    }\n  }\n\n  // Remove event specific arrays for event types that no\n  // one is subscribed for to avoid memory leak.\n  if (callbacks.length === 0) {\n    delete this._callbacks['$' + event];\n  }\n\n  return this;\n};\n\n/**\n * Emit `event` with the given args.\n *\n * @param {String} event\n * @param {Mixed} ...\n * @return {Emitter}\n */\n\nEmitter.prototype.emit = function(event){\n  this._callbacks = this._callbacks || {};\n\n  var args = new Array(arguments.length - 1)\n    , callbacks = this._callbacks['$' + event];\n\n  for (var i = 1; i < arguments.length; i++) {\n    args[i - 1] = arguments[i];\n  }\n\n  if (callbacks) {\n    callbacks = callbacks.slice(0);\n    for (var i = 0, len = callbacks.length; i < len; ++i) {\n      callbacks[i].apply(this, args);\n    }\n  }\n\n  return this;\n};\n\n// alias used for reserved events (protected method)\nEmitter.prototype.emitReserved = Emitter.prototype.emit;\n\n/**\n * Return array of callbacks for `event`.\n *\n * @param {String} event\n * @return {Array}\n * @api public\n */\n\nEmitter.prototype.listeners = function(event){\n  this._callbacks = this._callbacks || {};\n  return this._callbacks['$' + event] || [];\n};\n\n/**\n * Check if this emitter has `event` handlers.\n *\n * @param {String} event\n * @return {Boolean}\n * @api public\n */\n\nEmitter.prototype.hasListeners = function(event){\n  return !! this.listeners(event).length;\n};\n", "export const globalThisShim = (() => {\n    if (typeof self !== \"undefined\") {\n        return self;\n    }\n    else if (typeof window !== \"undefined\") {\n        return window;\n    }\n    else {\n        return Function(\"return this\")();\n    }\n})();\n", "import { globalThisShim as globalThis } from \"./globalThis.js\";\nexport function pick(obj, ...attr) {\n    return attr.reduce((acc, k) => {\n        if (obj.hasOwnProperty(k)) {\n            acc[k] = obj[k];\n        }\n        return acc;\n    }, {});\n}\n// Keep a reference to the real timeout functions so they can be used when overridden\nconst NATIVE_SET_TIMEOUT = globalThis.setTimeout;\nconst NATIVE_CLEAR_TIMEOUT = globalThis.clearTimeout;\nexport function installTimerFunctions(obj, opts) {\n    if (opts.useNativeTimers) {\n        obj.setTimeoutFn = NATIVE_SET_TIMEOUT.bind(globalThis);\n        obj.clearTimeoutFn = NATIVE_CLEAR_TIMEOUT.bind(globalThis);\n    }\n    else {\n        obj.setTimeoutFn = globalThis.setTimeout.bind(globalThis);\n        obj.clearTimeoutFn = globalThis.clearTimeout.bind(globalThis);\n    }\n}\n// base64 encoded buffers are about 33% bigger (https://en.wikipedia.org/wiki/Base64)\nconst BASE64_OVERHEAD = 1.33;\n// we could also have used `new Blob([obj]).size`, but it isn't supported in IE9\nexport function byteLength(obj) {\n    if (typeof obj === \"string\") {\n        return utf8Length(obj);\n    }\n    // arraybuffer or blob\n    return Math.ceil((obj.byteLength || obj.size) * BASE64_OVERHEAD);\n}\nfunction utf8Length(str) {\n    let c = 0, length = 0;\n    for (let i = 0, l = str.length; i < l; i++) {\n        c = str.charCodeAt(i);\n        if (c < 0x80) {\n            length += 1;\n        }\n        else if (c < 0x800) {\n            length += 2;\n        }\n        else if (c < 0xd800 || c >= 0xe000) {\n            length += 3;\n        }\n        else {\n            i++;\n            length += 4;\n        }\n    }\n    return length;\n}\n", "// imported from https://github.com/galkn/querystring\n/**\n * Compiles a querystring\n * Returns string representation of the object\n *\n * @param {Object}\n * @api private\n */\nexport function encode(obj) {\n    let str = '';\n    for (let i in obj) {\n        if (obj.hasOwnProperty(i)) {\n            if (str.length)\n                str += '&';\n            str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);\n        }\n    }\n    return str;\n}\n/**\n * Parses a simple querystring into an object\n *\n * @param {String} qs\n * @api private\n */\nexport function decode(qs) {\n    let qry = {};\n    let pairs = qs.split('&');\n    for (let i = 0, l = pairs.length; i < l; i++) {\n        let pair = pairs[i].split('=');\n        qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);\n    }\n    return qry;\n}\n", "import { decodePacket } from \"engine.io-parser\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions } from \"./util.js\";\nimport { encode } from \"./contrib/parseqs.js\";\nexport class TransportError extends Error {\n    constructor(reason, description, context) {\n        super(reason);\n        this.description = description;\n        this.context = context;\n        this.type = \"TransportError\";\n    }\n}\nexport class Transport extends Emitter {\n    /**\n     * Transport abstract constructor.\n     *\n     * @param {Object} opts - options\n     * @protected\n     */\n    constructor(opts) {\n        super();\n        this.writable = false;\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.query = opts.query;\n        this.socket = opts.socket;\n    }\n    /**\n     * Emits an error.\n     *\n     * @param {String} reason\n     * @param description\n     * @param context - the error context\n     * @return {Transport} for chaining\n     * @protected\n     */\n    onError(reason, description, context) {\n        super.emitReserved(\"error\", new TransportError(reason, description, context));\n        return this;\n    }\n    /**\n     * Opens the transport.\n     */\n    open() {\n        this.readyState = \"opening\";\n        this.doOpen();\n        return this;\n    }\n    /**\n     * Closes the transport.\n     */\n    close() {\n        if (this.readyState === \"opening\" || this.readyState === \"open\") {\n            this.doClose();\n            this.onClose();\n        }\n        return this;\n    }\n    /**\n     * Sends multiple packets.\n     *\n     * @param {Array} packets\n     */\n    send(packets) {\n        if (this.readyState === \"open\") {\n            this.write(packets);\n        }\n        else {\n            // this might happen if the transport was silently closed in the beforeunload event handler\n        }\n    }\n    /**\n     * Called upon open\n     *\n     * @protected\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        this.writable = true;\n        super.emitReserved(\"open\");\n    }\n    /**\n     * Called with data.\n     *\n     * @param {String} data\n     * @protected\n     */\n    onData(data) {\n        const packet = decodePacket(data, this.socket.binaryType);\n        this.onPacket(packet);\n    }\n    /**\n     * Called with a decoded packet.\n     *\n     * @protected\n     */\n    onPacket(packet) {\n        super.emitReserved(\"packet\", packet);\n    }\n    /**\n     * Called upon close.\n     *\n     * @protected\n     */\n    onClose(details) {\n        this.readyState = \"closed\";\n        super.emitReserved(\"close\", details);\n    }\n    /**\n     * Pauses the transport, in order not to lose packets during an upgrade.\n     *\n     * @param onPause\n     */\n    pause(onPause) { }\n    createUri(schema, query = {}) {\n        return (schema +\n            \"://\" +\n            this._hostname() +\n            this._port() +\n            this.opts.path +\n            this._query(query));\n    }\n    _hostname() {\n        const hostname = this.opts.hostname;\n        return hostname.indexOf(\":\") === -1 ? hostname : \"[\" + hostname + \"]\";\n    }\n    _port() {\n        if (this.opts.port &&\n            ((this.opts.secure && Number(this.opts.port !== 443)) ||\n                (!this.opts.secure && Number(this.opts.port) !== 80))) {\n            return \":\" + this.opts.port;\n        }\n        else {\n            return \"\";\n        }\n    }\n    _query(query) {\n        const encodedQuery = encode(query);\n        return encodedQuery.length ? \"?\" + encodedQuery : \"\";\n    }\n}\n", "// imported from https://github.com/unshiftio/yeast\n'use strict';\nconst alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split(''), length = 64, map = {};\nlet seed = 0, i = 0, prev;\n/**\n * Return a string representing the specified number.\n *\n * @param {Number} num The number to convert.\n * @returns {String} The string representation of the number.\n * @api public\n */\nexport function encode(num) {\n    let encoded = '';\n    do {\n        encoded = alphabet[num % length] + encoded;\n        num = Math.floor(num / length);\n    } while (num > 0);\n    return encoded;\n}\n/**\n * Return the integer value specified by the given string.\n *\n * @param {String} str The string to convert.\n * @returns {Number} The integer value represented by the string.\n * @api public\n */\nexport function decode(str) {\n    let decoded = 0;\n    for (i = 0; i < str.length; i++) {\n        decoded = decoded * length + map[str.charAt(i)];\n    }\n    return decoded;\n}\n/**\n * Yeast: A tiny growing id generator.\n *\n * @returns {String} A unique id.\n * @api public\n */\nexport function yeast() {\n    const now = encode(+new Date());\n    if (now !== prev)\n        return seed = 0, prev = now;\n    return now + '.' + encode(seed++);\n}\n//\n// Map each character to its index.\n//\nfor (; i < length; i++)\n    map[alphabet[i]] = i;\n", "// imported from https://github.com/component/has-cors\nlet value = false;\ntry {\n    value = typeof XMLHttpRequest !== 'undefined' &&\n        'withCredentials' in new XMLHttpRequest();\n}\ncatch (err) {\n    // if XMLHttp support is disabled in IE then it will throw\n    // when trying to create\n}\nexport const hasCORS = value;\n", "// browser shim for xmlhttprequest module\nimport { hasCORS } from \"../contrib/has-cors.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nexport function XHR(opts) {\n    const xdomain = opts.xdomain;\n    // XMLHttpRequest can be disabled on IE\n    try {\n        if (\"undefined\" !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {\n            return new XMLHttpRequest();\n        }\n    }\n    catch (e) { }\n    if (!xdomain) {\n        try {\n            return new globalThis[[\"Active\"].concat(\"Object\").join(\"X\")](\"Microsoft.XMLHTTP\");\n        }\n        catch (e) { }\n    }\n}\nexport function createCookieJar() { }\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { encodePayload, decodePayload } from \"engine.io-parser\";\nimport { createCookieJar, XHR as XMLHttpRequest, } from \"./xmlhttprequest.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions, pick } from \"../util.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nfunction empty() { }\nconst hasXHR2 = (function () {\n    const xhr = new XMLHttpRequest({\n        xdomain: false,\n    });\n    return null != xhr.responseType;\n})();\nexport class Polling extends Transport {\n    /**\n     * XHR Polling constructor.\n     *\n     * @param {Object} opts\n     * @package\n     */\n    constructor(opts) {\n        super(opts);\n        this.polling = false;\n        if (typeof location !== \"undefined\") {\n            const isSSL = \"https:\" === location.protocol;\n            let port = location.port;\n            // some user agents have empty `location.port`\n            if (!port) {\n                port = isSSL ? \"443\" : \"80\";\n            }\n            this.xd =\n                (typeof location !== \"undefined\" &&\n                    opts.hostname !== location.hostname) ||\n                    port !== opts.port;\n        }\n        /**\n         * XHR supports binary\n         */\n        const forceBase64 = opts && opts.forceBase64;\n        this.supportsBinary = hasXHR2 && !forceBase64;\n        if (this.opts.withCredentials) {\n            this.cookieJar = createCookieJar();\n        }\n    }\n    get name() {\n        return \"polling\";\n    }\n    /**\n     * Opens the socket (triggers polling). We write a PING message to determine\n     * when the transport is open.\n     *\n     * @protected\n     */\n    doOpen() {\n        this.poll();\n    }\n    /**\n     * Pauses polling.\n     *\n     * @param {Function} onPause - callback upon buffers are flushed and transport is paused\n     * @package\n     */\n    pause(onPause) {\n        this.readyState = \"pausing\";\n        const pause = () => {\n            this.readyState = \"paused\";\n            onPause();\n        };\n        if (this.polling || !this.writable) {\n            let total = 0;\n            if (this.polling) {\n                total++;\n                this.once(\"pollComplete\", function () {\n                    --total || pause();\n                });\n            }\n            if (!this.writable) {\n                total++;\n                this.once(\"drain\", function () {\n                    --total || pause();\n                });\n            }\n        }\n        else {\n            pause();\n        }\n    }\n    /**\n     * Starts polling cycle.\n     *\n     * @private\n     */\n    poll() {\n        this.polling = true;\n        this.doPoll();\n        this.emitReserved(\"poll\");\n    }\n    /**\n     * Overloads onData to detect payloads.\n     *\n     * @protected\n     */\n    onData(data) {\n        const callback = (packet) => {\n            // if its the first message we consider the transport open\n            if (\"opening\" === this.readyState && packet.type === \"open\") {\n                this.onOpen();\n            }\n            // if its a close packet, we close the ongoing requests\n            if (\"close\" === packet.type) {\n                this.onClose({ description: \"transport closed by the server\" });\n                return false;\n            }\n            // otherwise bypass onData and handle the message\n            this.onPacket(packet);\n        };\n        // decode payload\n        decodePayload(data, this.socket.binaryType).forEach(callback);\n        // if an event did not trigger closing\n        if (\"closed\" !== this.readyState) {\n            // if we got data we're not polling\n            this.polling = false;\n            this.emitReserved(\"pollComplete\");\n            if (\"open\" === this.readyState) {\n                this.poll();\n            }\n            else {\n            }\n        }\n    }\n    /**\n     * For polling, send a close packet.\n     *\n     * @protected\n     */\n    doClose() {\n        const close = () => {\n            this.write([{ type: \"close\" }]);\n        };\n        if (\"open\" === this.readyState) {\n            close();\n        }\n        else {\n            // in case we're trying to close while\n            // handshaking is in progress (GH-164)\n            this.once(\"open\", close);\n        }\n    }\n    /**\n     * Writes a packets payload.\n     *\n     * @param {Array} packets - data packets\n     * @protected\n     */\n    write(packets) {\n        this.writable = false;\n        encodePayload(packets, (data) => {\n            this.doWrite(data, () => {\n                this.writable = true;\n                this.emitReserved(\"drain\");\n            });\n        });\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"https\" : \"http\";\n        const query = this.query || {};\n        // cache busting is forced\n        if (false !== this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        if (!this.supportsBinary && !query.sid) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Creates a request.\n     *\n     * @param {String} method\n     * @private\n     */\n    request(opts = {}) {\n        Object.assign(opts, { xd: this.xd, cookieJar: this.cookieJar }, this.opts);\n        return new Request(this.uri(), opts);\n    }\n    /**\n     * Sends data.\n     *\n     * @param {String} data to send.\n     * @param {Function} called upon flush.\n     * @private\n     */\n    doWrite(data, fn) {\n        const req = this.request({\n            method: \"POST\",\n            data: data,\n        });\n        req.on(\"success\", fn);\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr post error\", xhrStatus, context);\n        });\n    }\n    /**\n     * Starts a poll cycle.\n     *\n     * @private\n     */\n    doPoll() {\n        const req = this.request();\n        req.on(\"data\", this.onData.bind(this));\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr poll error\", xhrStatus, context);\n        });\n        this.pollXhr = req;\n    }\n}\nexport class Request extends Emitter {\n    /**\n     * Request constructor\n     *\n     * @param {Object} options\n     * @package\n     */\n    constructor(uri, opts) {\n        super();\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.method = opts.method || \"GET\";\n        this.uri = uri;\n        this.data = undefined !== opts.data ? opts.data : null;\n        this.create();\n    }\n    /**\n     * Creates the XHR object and sends the request.\n     *\n     * @private\n     */\n    create() {\n        var _a;\n        const opts = pick(this.opts, \"agent\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"autoUnref\");\n        opts.xdomain = !!this.opts.xd;\n        const xhr = (this.xhr = new XMLHttpRequest(opts));\n        try {\n            xhr.open(this.method, this.uri, true);\n            try {\n                if (this.opts.extraHeaders) {\n                    xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);\n                    for (let i in this.opts.extraHeaders) {\n                        if (this.opts.extraHeaders.hasOwnProperty(i)) {\n                            xhr.setRequestHeader(i, this.opts.extraHeaders[i]);\n                        }\n                    }\n                }\n            }\n            catch (e) { }\n            if (\"POST\" === this.method) {\n                try {\n                    xhr.setRequestHeader(\"Content-type\", \"text/plain;charset=UTF-8\");\n                }\n                catch (e) { }\n            }\n            try {\n                xhr.setRequestHeader(\"Accept\", \"*/*\");\n            }\n            catch (e) { }\n            (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.addCookies(xhr);\n            // ie6 check\n            if (\"withCredentials\" in xhr) {\n                xhr.withCredentials = this.opts.withCredentials;\n            }\n            if (this.opts.requestTimeout) {\n                xhr.timeout = this.opts.requestTimeout;\n            }\n            xhr.onreadystatechange = () => {\n                var _a;\n                if (xhr.readyState === 3) {\n                    (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.parseCookies(xhr);\n                }\n                if (4 !== xhr.readyState)\n                    return;\n                if (200 === xhr.status || 1223 === xhr.status) {\n                    this.onLoad();\n                }\n                else {\n                    // make sure the `error` event handler that's user-set\n                    // does not throw in the same tick and gets caught here\n                    this.setTimeoutFn(() => {\n                        this.onError(typeof xhr.status === \"number\" ? xhr.status : 0);\n                    }, 0);\n                }\n            };\n            xhr.send(this.data);\n        }\n        catch (e) {\n            // Need to defer since .create() is called directly from the constructor\n            // and thus the 'error' event can only be only bound *after* this exception\n            // occurs.  Therefore, also, we cannot throw here at all.\n            this.setTimeoutFn(() => {\n                this.onError(e);\n            }, 0);\n            return;\n        }\n        if (typeof document !== \"undefined\") {\n            this.index = Request.requestsCount++;\n            Request.requests[this.index] = this;\n        }\n    }\n    /**\n     * Called upon error.\n     *\n     * @private\n     */\n    onError(err) {\n        this.emitReserved(\"error\", err, this.xhr);\n        this.cleanup(true);\n    }\n    /**\n     * Cleans up house.\n     *\n     * @private\n     */\n    cleanup(fromError) {\n        if (\"undefined\" === typeof this.xhr || null === this.xhr) {\n            return;\n        }\n        this.xhr.onreadystatechange = empty;\n        if (fromError) {\n            try {\n                this.xhr.abort();\n            }\n            catch (e) { }\n        }\n        if (typeof document !== \"undefined\") {\n            delete Request.requests[this.index];\n        }\n        this.xhr = null;\n    }\n    /**\n     * Called upon load.\n     *\n     * @private\n     */\n    onLoad() {\n        const data = this.xhr.responseText;\n        if (data !== null) {\n            this.emitReserved(\"data\", data);\n            this.emitReserved(\"success\");\n            this.cleanup();\n        }\n    }\n    /**\n     * Aborts the request.\n     *\n     * @package\n     */\n    abort() {\n        this.cleanup();\n    }\n}\nRequest.requestsCount = 0;\nRequest.requests = {};\n/**\n * Aborts pending requests when unloading the window. This is needed to prevent\n * memory leaks (e.g. when using IE) and to ensure that no spurious error is\n * emitted.\n */\nif (typeof document !== \"undefined\") {\n    // @ts-ignore\n    if (typeof attachEvent === \"function\") {\n        // @ts-ignore\n        attachEvent(\"onunload\", unloadHandler);\n    }\n    else if (typeof addEventListener === \"function\") {\n        const terminationEvent = \"onpagehide\" in globalThis ? \"pagehide\" : \"unload\";\n        addEventListener(terminationEvent, unloadHandler, false);\n    }\n}\nfunction unloadHandler() {\n    for (let i in Request.requests) {\n        if (Request.requests.hasOwnProperty(i)) {\n            Request.requests[i].abort();\n        }\n    }\n}\n", "import { globalThisShim as globalThis } from \"../globalThis.js\";\nexport const nextTick = (() => {\n    const isPromiseAvailable = typeof Promise === \"function\" && typeof Promise.resolve === \"function\";\n    if (isPromiseAvailable) {\n        return (cb) => Promise.resolve().then(cb);\n    }\n    else {\n        return (cb, setTimeoutFn) => setTimeoutFn(cb, 0);\n    }\n})();\nexport const WebSocket = globalThis.WebSocket || globalThis.MozWebSocket;\nexport const usingBrowserWebSocket = true;\nexport const defaultBinaryType = \"arraybuffer\";\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { pick } from \"../util.js\";\nimport { nextTick, usingBrowserWebSocket, WebSocket, } from \"./websocket-constructor.js\";\nimport { encodePacket } from \"engine.io-parser\";\n// detect ReactNative environment\nconst isReactNative = typeof navigator !== \"undefined\" &&\n    typeof navigator.product === \"string\" &&\n    navigator.product.toLowerCase() === \"reactnative\";\nexport class WS extends Transport {\n    /**\n     * WebSocket transport constructor.\n     *\n     * @param {Object} opts - connection options\n     * @protected\n     */\n    constructor(opts) {\n        super(opts);\n        this.supportsBinary = !opts.forceBase64;\n    }\n    get name() {\n        return \"websocket\";\n    }\n    doOpen() {\n        if (!this.check()) {\n            // let probe timeout\n            return;\n        }\n        const uri = this.uri();\n        const protocols = this.opts.protocols;\n        // React Native only supports the 'headers' option, and will print a warning if anything else is passed\n        const opts = isReactNative\n            ? {}\n            : pick(this.opts, \"agent\", \"perMessageDeflate\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"localAddress\", \"protocolVersion\", \"origin\", \"maxPayload\", \"family\", \"checkServerIdentity\");\n        if (this.opts.extraHeaders) {\n            opts.headers = this.opts.extraHeaders;\n        }\n        try {\n            this.ws =\n                usingBrowserWebSocket && !isReactNative\n                    ? protocols\n                        ? new WebSocket(uri, protocols)\n                        : new WebSocket(uri)\n                    : new WebSocket(uri, protocols, opts);\n        }\n        catch (err) {\n            return this.emitReserved(\"error\", err);\n        }\n        this.ws.binaryType = this.socket.binaryType;\n        this.addEventListeners();\n    }\n    /**\n     * Adds event listeners to the socket\n     *\n     * @private\n     */\n    addEventListeners() {\n        this.ws.onopen = () => {\n            if (this.opts.autoUnref) {\n                this.ws._socket.unref();\n            }\n            this.onOpen();\n        };\n        this.ws.onclose = (closeEvent) => this.onClose({\n            description: \"websocket connection closed\",\n            context: closeEvent,\n        });\n        this.ws.onmessage = (ev) => this.onData(ev.data);\n        this.ws.onerror = (e) => this.onError(\"websocket error\", e);\n    }\n    write(packets) {\n        this.writable = false;\n        // encodePacket efficient as it uses WS framing\n        // no need for encodePayload\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            encodePacket(packet, this.supportsBinary, (data) => {\n                // always create a new object (GH-437)\n                const opts = {};\n                if (!usingBrowserWebSocket) {\n                    if (packet.options) {\n                        opts.compress = packet.options.compress;\n                    }\n                    if (this.opts.perMessageDeflate) {\n                        const len = \n                        // @ts-ignore\n                        \"string\" === typeof data ? Buffer.byteLength(data) : data.length;\n                        if (len < this.opts.perMessageDeflate.threshold) {\n                            opts.compress = false;\n                        }\n                    }\n                }\n                // Sometimes the websocket has already been closed but the browser didn't\n                // have a chance of informing us about it yet, in that case send will\n                // throw an error\n                try {\n                    if (usingBrowserWebSocket) {\n                        // TypeError is thrown when passing the second argument on Safari\n                        this.ws.send(data);\n                    }\n                    else {\n                        this.ws.send(data, opts);\n                    }\n                }\n                catch (e) {\n                }\n                if (lastPacket) {\n                    // fake drain\n                    // defer to next tick to allow Socket to clear writeBuffer\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        if (typeof this.ws !== \"undefined\") {\n            this.ws.close();\n            this.ws = null;\n        }\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"wss\" : \"ws\";\n        const query = this.query || {};\n        // append timestamp to URI\n        if (this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        // communicate binary support capabilities\n        if (!this.supportsBinary) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Feature detection for WebSocket.\n     *\n     * @return {Boolean} whether this transport is available.\n     * @private\n     */\n    check() {\n        return !!WebSocket;\n    }\n}\n", "import { Transport } from \"../transport.js\";\nimport { nextTick } from \"./websocket-constructor.js\";\nimport { createPacketDecoderStream, createPacketEncoderStream, } from \"engine.io-parser\";\nexport class WT extends Transport {\n    get name() {\n        return \"webtransport\";\n    }\n    doOpen() {\n        // @ts-ignore\n        if (typeof WebTransport !== \"function\") {\n            return;\n        }\n        // @ts-ignore\n        this.transport = new WebTransport(this.createUri(\"https\"), this.opts.transportOptions[this.name]);\n        this.transport.closed\n            .then(() => {\n            this.onClose();\n        })\n            .catch((err) => {\n            this.onError(\"webtransport error\", err);\n        });\n        // note: we could have used async/await, but that would require some additional polyfills\n        this.transport.ready.then(() => {\n            this.transport.createBidirectionalStream().then((stream) => {\n                const decoderStream = createPacketDecoderStream(Number.MAX_SAFE_INTEGER, this.socket.binaryType);\n                const reader = stream.readable.pipeThrough(decoderStream).getReader();\n                const encoderStream = createPacketEncoderStream();\n                encoderStream.readable.pipeTo(stream.writable);\n                this.writer = encoderStream.writable.getWriter();\n                const read = () => {\n                    reader\n                        .read()\n                        .then(({ done, value }) => {\n                        if (done) {\n                            return;\n                        }\n                        this.onPacket(value);\n                        read();\n                    })\n                        .catch((err) => {\n                    });\n                };\n                read();\n                const packet = { type: \"open\" };\n                if (this.query.sid) {\n                    packet.data = `{\"sid\":\"${this.query.sid}\"}`;\n                }\n                this.writer.write(packet).then(() => this.onOpen());\n            });\n        });\n    }\n    write(packets) {\n        this.writable = false;\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            this.writer.write(packet).then(() => {\n                if (lastPacket) {\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        var _a;\n        (_a = this.transport) === null || _a === void 0 ? void 0 : _a.close();\n    }\n}\n", "import { Polling } from \"./polling.js\";\nimport { WS } from \"./websocket.js\";\nimport { WT } from \"./webtransport.js\";\nexport const transports = {\n    websocket: WS,\n    webtransport: WT,\n    polling: Polling,\n};\n", "// imported from https://github.com/galkn/parseuri\n/**\n * Parses a URI\n *\n * Note: we could also have used the built-in URL object, but it isn't supported on all platforms.\n *\n * See:\n * - https://developer.mozilla.org/en-US/docs/Web/API/URL\n * - https://caniuse.com/url\n * - https://www.rfc-editor.org/rfc/rfc3986#appendix-B\n *\n * History of the parse() method:\n * - first commit: https://github.com/socketio/socket.io-client/commit/4ee1d5d94b3906a9c052b459f1a818b15f38f91c\n * - export into its own module: https://github.com/socketio/engine.io-client/commit/de2c561e4564efeb78f1bdb1ba39ef81b2822cb3\n * - reimport: https://github.com/socketio/engine.io-client/commit/df32277c3f6d622eec5ed09f493cae3f3391d242\n *\n * @author Steven Levithan <stevenlevithan.com> (MIT license)\n * @api private\n */\nconst re = /^(?:(?![^:@\\/?#]+:[^:@\\/]*@)(http|https|ws|wss):\\/\\/)?((?:(([^:@\\/?#]*)(?::([^:@\\/?#]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\\/?#]*)(?::(\\d*))?)(((\\/(?:[^?#](?![^?#\\/]*\\.[^?#\\/.]+(?:[?#]|$)))*\\/?)?([^?#\\/]*))(?:\\?([^#]*))?(?:#(.*))?)/;\nconst parts = [\n    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'\n];\nexport function parse(str) {\n    if (str.length > 2000) {\n        throw \"URI too long\";\n    }\n    const src = str, b = str.indexOf('['), e = str.indexOf(']');\n    if (b != -1 && e != -1) {\n        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);\n    }\n    let m = re.exec(str || ''), uri = {}, i = 14;\n    while (i--) {\n        uri[parts[i]] = m[i] || '';\n    }\n    if (b != -1 && e != -1) {\n        uri.source = src;\n        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');\n        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');\n        uri.ipv6uri = true;\n    }\n    uri.pathNames = pathNames(uri, uri['path']);\n    uri.queryKey = queryKey(uri, uri['query']);\n    return uri;\n}\nfunction pathNames(obj, path) {\n    const regx = /\\/{2,9}/g, names = path.replace(regx, \"/\").split(\"/\");\n    if (path.slice(0, 1) == '/' || path.length === 0) {\n        names.splice(0, 1);\n    }\n    if (path.slice(-1) == '/') {\n        names.splice(names.length - 1, 1);\n    }\n    return names;\n}\nfunction queryKey(uri, query) {\n    const data = {};\n    query.replace(/(?:^|&)([^&=]*)=?([^&]*)/g, function ($0, $1, $2) {\n        if ($1) {\n            data[$1] = $2;\n        }\n    });\n    return data;\n}\n", "import { transports } from \"./transports/index.js\";\nimport { installTimerFunctions, byteLength } from \"./util.js\";\nimport { decode } from \"./contrib/parseqs.js\";\nimport { parse } from \"./contrib/parseuri.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { protocol } from \"engine.io-parser\";\nimport { defaultBinaryType } from \"./transports/websocket-constructor.js\";\nexport class Socket extends Emitter {\n    /**\n     * Socket constructor.\n     *\n     * @param {String|Object} uri - uri or options\n     * @param {Object} opts - options\n     */\n    constructor(uri, opts = {}) {\n        super();\n        this.binaryType = defaultBinaryType;\n        this.writeBuffer = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = null;\n        }\n        if (uri) {\n            uri = parse(uri);\n            opts.hostname = uri.host;\n            opts.secure = uri.protocol === \"https\" || uri.protocol === \"wss\";\n            opts.port = uri.port;\n            if (uri.query)\n                opts.query = uri.query;\n        }\n        else if (opts.host) {\n            opts.hostname = parse(opts.host).host;\n        }\n        installTimerFunctions(this, opts);\n        this.secure =\n            null != opts.secure\n                ? opts.secure\n                : typeof location !== \"undefined\" && \"https:\" === location.protocol;\n        if (opts.hostname && !opts.port) {\n            // if no port is specified manually, use the protocol default\n            opts.port = this.secure ? \"443\" : \"80\";\n        }\n        this.hostname =\n            opts.hostname ||\n                (typeof location !== \"undefined\" ? location.hostname : \"localhost\");\n        this.port =\n            opts.port ||\n                (typeof location !== \"undefined\" && location.port\n                    ? location.port\n                    : this.secure\n                        ? \"443\"\n                        : \"80\");\n        this.transports = opts.transports || [\n            \"polling\",\n            \"websocket\",\n            \"webtransport\",\n        ];\n        this.writeBuffer = [];\n        this.prevBufferLen = 0;\n        this.opts = Object.assign({\n            path: \"/engine.io\",\n            agent: false,\n            withCredentials: false,\n            upgrade: true,\n            timestampParam: \"t\",\n            rememberUpgrade: false,\n            addTrailingSlash: true,\n            rejectUnauthorized: true,\n            perMessageDeflate: {\n                threshold: 1024,\n            },\n            transportOptions: {},\n            closeOnBeforeunload: false,\n        }, opts);\n        this.opts.path =\n            this.opts.path.replace(/\\/$/, \"\") +\n                (this.opts.addTrailingSlash ? \"/\" : \"\");\n        if (typeof this.opts.query === \"string\") {\n            this.opts.query = decode(this.opts.query);\n        }\n        // set on handshake\n        this.id = null;\n        this.upgrades = null;\n        this.pingInterval = null;\n        this.pingTimeout = null;\n        // set on heartbeat\n        this.pingTimeoutTimer = null;\n        if (typeof addEventListener === \"function\") {\n            if (this.opts.closeOnBeforeunload) {\n                // Firefox closes the connection when the \"beforeunload\" event is emitted but not Chrome. This event listener\n                // ensures every browser behaves the same (no \"disconnect\" event at the Socket.IO level when the page is\n                // closed/reloaded)\n                this.beforeunloadEventListener = () => {\n                    if (this.transport) {\n                        // silently close the transport\n                        this.transport.removeAllListeners();\n                        this.transport.close();\n                    }\n                };\n                addEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n            }\n            if (this.hostname !== \"localhost\") {\n                this.offlineEventListener = () => {\n                    this.onClose(\"transport close\", {\n                        description: \"network connection lost\",\n                    });\n                };\n                addEventListener(\"offline\", this.offlineEventListener, false);\n            }\n        }\n        this.open();\n    }\n    /**\n     * Creates transport of the given type.\n     *\n     * @param {String} name - transport name\n     * @return {Transport}\n     * @private\n     */\n    createTransport(name) {\n        const query = Object.assign({}, this.opts.query);\n        // append engine.io protocol identifier\n        query.EIO = protocol;\n        // transport name\n        query.transport = name;\n        // session id if we already have one\n        if (this.id)\n            query.sid = this.id;\n        const opts = Object.assign({}, this.opts, {\n            query,\n            socket: this,\n            hostname: this.hostname,\n            secure: this.secure,\n            port: this.port,\n        }, this.opts.transportOptions[name]);\n        return new transports[name](opts);\n    }\n    /**\n     * Initializes transport to use and starts probe.\n     *\n     * @private\n     */\n    open() {\n        let transport;\n        if (this.opts.rememberUpgrade &&\n            Socket.priorWebsocketSuccess &&\n            this.transports.indexOf(\"websocket\") !== -1) {\n            transport = \"websocket\";\n        }\n        else if (0 === this.transports.length) {\n            // Emit error on next tick so it can be listened to\n            this.setTimeoutFn(() => {\n                this.emitReserved(\"error\", \"No transports available\");\n            }, 0);\n            return;\n        }\n        else {\n            transport = this.transports[0];\n        }\n        this.readyState = \"opening\";\n        // Retry with the next transport if the transport is disabled (jsonp: false)\n        try {\n            transport = this.createTransport(transport);\n        }\n        catch (e) {\n            this.transports.shift();\n            this.open();\n            return;\n        }\n        transport.open();\n        this.setTransport(transport);\n    }\n    /**\n     * Sets the current transport. Disables the existing one (if any).\n     *\n     * @private\n     */\n    setTransport(transport) {\n        if (this.transport) {\n            this.transport.removeAllListeners();\n        }\n        // set up transport\n        this.transport = transport;\n        // set up transport listeners\n        transport\n            .on(\"drain\", this.onDrain.bind(this))\n            .on(\"packet\", this.onPacket.bind(this))\n            .on(\"error\", this.onError.bind(this))\n            .on(\"close\", (reason) => this.onClose(\"transport close\", reason));\n    }\n    /**\n     * Probes a transport.\n     *\n     * @param {String} name - transport name\n     * @private\n     */\n    probe(name) {\n        let transport = this.createTransport(name);\n        let failed = false;\n        Socket.priorWebsocketSuccess = false;\n        const onTransportOpen = () => {\n            if (failed)\n                return;\n            transport.send([{ type: \"ping\", data: \"probe\" }]);\n            transport.once(\"packet\", (msg) => {\n                if (failed)\n                    return;\n                if (\"pong\" === msg.type && \"probe\" === msg.data) {\n                    this.upgrading = true;\n                    this.emitReserved(\"upgrading\", transport);\n                    if (!transport)\n                        return;\n                    Socket.priorWebsocketSuccess = \"websocket\" === transport.name;\n                    this.transport.pause(() => {\n                        if (failed)\n                            return;\n                        if (\"closed\" === this.readyState)\n                            return;\n                        cleanup();\n                        this.setTransport(transport);\n                        transport.send([{ type: \"upgrade\" }]);\n                        this.emitReserved(\"upgrade\", transport);\n                        transport = null;\n                        this.upgrading = false;\n                        this.flush();\n                    });\n                }\n                else {\n                    const err = new Error(\"probe error\");\n                    // @ts-ignore\n                    err.transport = transport.name;\n                    this.emitReserved(\"upgradeError\", err);\n                }\n            });\n        };\n        function freezeTransport() {\n            if (failed)\n                return;\n            // Any callback called by transport should be ignored since now\n            failed = true;\n            cleanup();\n            transport.close();\n            transport = null;\n        }\n        // Handle any error that happens while probing\n        const onerror = (err) => {\n            const error = new Error(\"probe error: \" + err);\n            // @ts-ignore\n            error.transport = transport.name;\n            freezeTransport();\n            this.emitReserved(\"upgradeError\", error);\n        };\n        function onTransportClose() {\n            onerror(\"transport closed\");\n        }\n        // When the socket is closed while we're probing\n        function onclose() {\n            onerror(\"socket closed\");\n        }\n        // When the socket is upgraded while we're probing\n        function onupgrade(to) {\n            if (transport && to.name !== transport.name) {\n                freezeTransport();\n            }\n        }\n        // Remove all listeners on the transport and on self\n        const cleanup = () => {\n            transport.removeListener(\"open\", onTransportOpen);\n            transport.removeListener(\"error\", onerror);\n            transport.removeListener(\"close\", onTransportClose);\n            this.off(\"close\", onclose);\n            this.off(\"upgrading\", onupgrade);\n        };\n        transport.once(\"open\", onTransportOpen);\n        transport.once(\"error\", onerror);\n        transport.once(\"close\", onTransportClose);\n        this.once(\"close\", onclose);\n        this.once(\"upgrading\", onupgrade);\n        if (this.upgrades.indexOf(\"webtransport\") !== -1 &&\n            name !== \"webtransport\") {\n            // favor WebTransport\n            this.setTimeoutFn(() => {\n                if (!failed) {\n                    transport.open();\n                }\n            }, 200);\n        }\n        else {\n            transport.open();\n        }\n    }\n    /**\n     * Called when connection is deemed open.\n     *\n     * @private\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        Socket.priorWebsocketSuccess = \"websocket\" === this.transport.name;\n        this.emitReserved(\"open\");\n        this.flush();\n        // we check for `readyState` in case an `open`\n        // listener already closed the socket\n        if (\"open\" === this.readyState && this.opts.upgrade) {\n            let i = 0;\n            const l = this.upgrades.length;\n            for (; i < l; i++) {\n                this.probe(this.upgrades[i]);\n            }\n        }\n    }\n    /**\n     * Handles a packet.\n     *\n     * @private\n     */\n    onPacket(packet) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            this.emitReserved(\"packet\", packet);\n            // Socket is live - any packet counts\n            this.emitReserved(\"heartbeat\");\n            this.resetPingTimeout();\n            switch (packet.type) {\n                case \"open\":\n                    this.onHandshake(JSON.parse(packet.data));\n                    break;\n                case \"ping\":\n                    this.sendPacket(\"pong\");\n                    this.emitReserved(\"ping\");\n                    this.emitReserved(\"pong\");\n                    break;\n                case \"error\":\n                    const err = new Error(\"server error\");\n                    // @ts-ignore\n                    err.code = packet.data;\n                    this.onError(err);\n                    break;\n                case \"message\":\n                    this.emitReserved(\"data\", packet.data);\n                    this.emitReserved(\"message\", packet.data);\n                    break;\n            }\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon handshake completion.\n     *\n     * @param {Object} data - handshake obj\n     * @private\n     */\n    onHandshake(data) {\n        this.emitReserved(\"handshake\", data);\n        this.id = data.sid;\n        this.transport.query.sid = data.sid;\n        this.upgrades = this.filterUpgrades(data.upgrades);\n        this.pingInterval = data.pingInterval;\n        this.pingTimeout = data.pingTimeout;\n        this.maxPayload = data.maxPayload;\n        this.onOpen();\n        // In case open handler closes socket\n        if (\"closed\" === this.readyState)\n            return;\n        this.resetPingTimeout();\n    }\n    /**\n     * Sets and resets ping timeout timer based on server pings.\n     *\n     * @private\n     */\n    resetPingTimeout() {\n        this.clearTimeoutFn(this.pingTimeoutTimer);\n        this.pingTimeoutTimer = this.setTimeoutFn(() => {\n            this.onClose(\"ping timeout\");\n        }, this.pingInterval + this.pingTimeout);\n        if (this.opts.autoUnref) {\n            this.pingTimeoutTimer.unref();\n        }\n    }\n    /**\n     * Called on `drain` event\n     *\n     * @private\n     */\n    onDrain() {\n        this.writeBuffer.splice(0, this.prevBufferLen);\n        // setting prevBufferLen = 0 is very important\n        // for example, when upgrading, upgrade packet is sent over,\n        // and a nonzero prevBufferLen could cause problems on `drain`\n        this.prevBufferLen = 0;\n        if (0 === this.writeBuffer.length) {\n            this.emitReserved(\"drain\");\n        }\n        else {\n            this.flush();\n        }\n    }\n    /**\n     * Flush write buffers.\n     *\n     * @private\n     */\n    flush() {\n        if (\"closed\" !== this.readyState &&\n            this.transport.writable &&\n            !this.upgrading &&\n            this.writeBuffer.length) {\n            const packets = this.getWritablePackets();\n            this.transport.send(packets);\n            // keep track of current length of writeBuffer\n            // splice writeBuffer and callbackBuffer on `drain`\n            this.prevBufferLen = packets.length;\n            this.emitReserved(\"flush\");\n        }\n    }\n    /**\n     * Ensure the encoded size of the writeBuffer is below the maxPayload value sent by the server (only for HTTP\n     * long-polling)\n     *\n     * @private\n     */\n    getWritablePackets() {\n        const shouldCheckPayloadSize = this.maxPayload &&\n            this.transport.name === \"polling\" &&\n            this.writeBuffer.length > 1;\n        if (!shouldCheckPayloadSize) {\n            return this.writeBuffer;\n        }\n        let payloadSize = 1; // first packet type\n        for (let i = 0; i < this.writeBuffer.length; i++) {\n            const data = this.writeBuffer[i].data;\n            if (data) {\n                payloadSize += byteLength(data);\n            }\n            if (i > 0 && payloadSize > this.maxPayload) {\n                return this.writeBuffer.slice(0, i);\n            }\n            payloadSize += 2; // separator + packet type\n        }\n        return this.writeBuffer;\n    }\n    /**\n     * Sends a message.\n     *\n     * @param {String} msg - message.\n     * @param {Object} options.\n     * @param {Function} callback function.\n     * @return {Socket} for chaining.\n     */\n    write(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    send(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param {String} type: packet type.\n     * @param {String} data.\n     * @param {Object} options.\n     * @param {Function} fn - callback function.\n     * @private\n     */\n    sendPacket(type, data, options, fn) {\n        if (\"function\" === typeof data) {\n            fn = data;\n            data = undefined;\n        }\n        if (\"function\" === typeof options) {\n            fn = options;\n            options = null;\n        }\n        if (\"closing\" === this.readyState || \"closed\" === this.readyState) {\n            return;\n        }\n        options = options || {};\n        options.compress = false !== options.compress;\n        const packet = {\n            type: type,\n            data: data,\n            options: options,\n        };\n        this.emitReserved(\"packetCreate\", packet);\n        this.writeBuffer.push(packet);\n        if (fn)\n            this.once(\"flush\", fn);\n        this.flush();\n    }\n    /**\n     * Closes the connection.\n     */\n    close() {\n        const close = () => {\n            this.onClose(\"forced close\");\n            this.transport.close();\n        };\n        const cleanupAndClose = () => {\n            this.off(\"upgrade\", cleanupAndClose);\n            this.off(\"upgradeError\", cleanupAndClose);\n            close();\n        };\n        const waitForUpgrade = () => {\n            // wait for upgrade to finish since we can't send packets while pausing a transport\n            this.once(\"upgrade\", cleanupAndClose);\n            this.once(\"upgradeError\", cleanupAndClose);\n        };\n        if (\"opening\" === this.readyState || \"open\" === this.readyState) {\n            this.readyState = \"closing\";\n            if (this.writeBuffer.length) {\n                this.once(\"drain\", () => {\n                    if (this.upgrading) {\n                        waitForUpgrade();\n                    }\n                    else {\n                        close();\n                    }\n                });\n            }\n            else if (this.upgrading) {\n                waitForUpgrade();\n            }\n            else {\n                close();\n            }\n        }\n        return this;\n    }\n    /**\n     * Called upon transport error\n     *\n     * @private\n     */\n    onError(err) {\n        Socket.priorWebsocketSuccess = false;\n        this.emitReserved(\"error\", err);\n        this.onClose(\"transport error\", err);\n    }\n    /**\n     * Called upon transport close.\n     *\n     * @private\n     */\n    onClose(reason, description) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            // clear timers\n            this.clearTimeoutFn(this.pingTimeoutTimer);\n            // stop event from firing again for transport\n            this.transport.removeAllListeners(\"close\");\n            // ensure transport won't stay open\n            this.transport.close();\n            // ignore further transport communication\n            this.transport.removeAllListeners();\n            if (typeof removeEventListener === \"function\") {\n                removeEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n                removeEventListener(\"offline\", this.offlineEventListener, false);\n            }\n            // set ready state\n            this.readyState = \"closed\";\n            // clear session id\n            this.id = null;\n            // emit close event\n            this.emitReserved(\"close\", reason, description);\n            // clean buffers after, so users can still\n            // grab the buffers on `close` event\n            this.writeBuffer = [];\n            this.prevBufferLen = 0;\n        }\n    }\n    /**\n     * Filters upgrades, returning only those matching client transports.\n     *\n     * @param {Array} upgrades - server upgrades\n     * @private\n     */\n    filterUpgrades(upgrades) {\n        const filteredUpgrades = [];\n        let i = 0;\n        const j = upgrades.length;\n        for (; i < j; i++) {\n            if (~this.transports.indexOf(upgrades[i]))\n                filteredUpgrades.push(upgrades[i]);\n        }\n        return filteredUpgrades;\n    }\n}\nSocket.protocol = protocol;\n", "import { Socket } from \"./socket.js\";\nexport { Socket };\nexport const protocol = Socket.protocol;\nexport { Transport, TransportError } from \"./transport.js\";\nexport { transports } from \"./transports/index.js\";\nexport { installTimerFunctions } from \"./util.js\";\nexport { parse } from \"./contrib/parseuri.js\";\nexport { nextTick } from \"./transports/websocket-constructor.js\";\n", "import { parse } from \"engine.io-client\";\n/**\n * URL parser.\n *\n * @param uri - url\n * @param path - the request path of the connection\n * @param loc - An object meant to mimic window.location.\n *        Defaults to window.location.\n * @public\n */\nexport function url(uri, path = \"\", loc) {\n    let obj = uri;\n    // default to window.location\n    loc = loc || (typeof location !== \"undefined\" && location);\n    if (null == uri)\n        uri = loc.protocol + \"//\" + loc.host;\n    // relative path support\n    if (typeof uri === \"string\") {\n        if (\"/\" === uri.charAt(0)) {\n            if (\"/\" === uri.charAt(1)) {\n                uri = loc.protocol + uri;\n            }\n            else {\n                uri = loc.host + uri;\n            }\n        }\n        if (!/^(https?|wss?):\\/\\//.test(uri)) {\n            if (\"undefined\" !== typeof loc) {\n                uri = loc.protocol + \"//\" + uri;\n            }\n            else {\n                uri = \"https://\" + uri;\n            }\n        }\n        // parse\n        obj = parse(uri);\n    }\n    // make sure we treat `localhost:80` and `localhost` equally\n    if (!obj.port) {\n        if (/^(http|ws)$/.test(obj.protocol)) {\n            obj.port = \"80\";\n        }\n        else if (/^(http|ws)s$/.test(obj.protocol)) {\n            obj.port = \"443\";\n        }\n    }\n    obj.path = obj.path || \"/\";\n    const ipv6 = obj.host.indexOf(\":\") !== -1;\n    const host = ipv6 ? \"[\" + obj.host + \"]\" : obj.host;\n    // define unique id\n    obj.id = obj.protocol + \"://\" + host + \":\" + obj.port + path;\n    // define href\n    obj.href =\n        obj.protocol +\n            \"://\" +\n            host +\n            (loc && loc.port === obj.port ? \"\" : \":\" + obj.port);\n    return obj;\n}\n", "import { Emitter } from \"@socket.io/component-emitter\";\nimport { deconstructPacket, reconstructPacket } from \"./binary.js\";\nimport { isBinary, hasBinary } from \"./is-binary.js\";\n/**\n * These strings must not be used as event names, as they have a special meaning.\n */\nconst RESERVED_EVENTS = [\n    \"connect\",\n    \"connect_error\",\n    \"disconnect\",\n    \"disconnecting\",\n    \"newListener\",\n    \"removeListener\", // used by the Node.js EventEmitter\n];\n/**\n * Protocol version.\n *\n * @public\n */\nexport const protocol = 5;\nexport var PacketType;\n(function (PacketType) {\n    PacketType[PacketType[\"CONNECT\"] = 0] = \"CONNECT\";\n    PacketType[PacketType[\"DISCONNECT\"] = 1] = \"DISCONNECT\";\n    PacketType[PacketType[\"EVENT\"] = 2] = \"EVENT\";\n    PacketType[PacketType[\"ACK\"] = 3] = \"ACK\";\n    PacketType[PacketType[\"CONNECT_ERROR\"] = 4] = \"CONNECT_ERROR\";\n    PacketType[PacketType[\"BINARY_EVENT\"] = 5] = \"BINARY_EVENT\";\n    PacketType[PacketType[\"BINARY_ACK\"] = 6] = \"BINARY_ACK\";\n})(PacketType || (PacketType = {}));\n/**\n * A socket.io Encoder instance\n */\nexport class Encoder {\n    /**\n     * Encoder constructor\n     *\n     * @param {function} replacer - custom replacer to pass down to JSON.parse\n     */\n    constructor(replacer) {\n        this.replacer = replacer;\n    }\n    /**\n     * Encode a packet as a single string if non-binary, or as a\n     * buffer sequence, depending on packet type.\n     *\n     * @param {Object} obj - packet object\n     */\n    encode(obj) {\n        if (obj.type === PacketType.EVENT || obj.type === PacketType.ACK) {\n            if (hasBinary(obj)) {\n                return this.encodeAsBinary({\n                    type: obj.type === PacketType.EVENT\n                        ? PacketType.BINARY_EVENT\n                        : PacketType.BINARY_ACK,\n                    nsp: obj.nsp,\n                    data: obj.data,\n                    id: obj.id,\n                });\n            }\n        }\n        return [this.encodeAsString(obj)];\n    }\n    /**\n     * Encode packet as string.\n     */\n    encodeAsString(obj) {\n        // first is type\n        let str = \"\" + obj.type;\n        // attachments if we have them\n        if (obj.type === PacketType.BINARY_EVENT ||\n            obj.type === PacketType.BINARY_ACK) {\n            str += obj.attachments + \"-\";\n        }\n        // if we have a namespace other than `/`\n        // we append it followed by a comma `,`\n        if (obj.nsp && \"/\" !== obj.nsp) {\n            str += obj.nsp + \",\";\n        }\n        // immediately followed by the id\n        if (null != obj.id) {\n            str += obj.id;\n        }\n        // json data\n        if (null != obj.data) {\n            str += JSON.stringify(obj.data, this.replacer);\n        }\n        return str;\n    }\n    /**\n     * Encode packet as 'buffer sequence' by removing blobs, and\n     * deconstructing packet into object with placeholders and\n     * a list of buffers.\n     */\n    encodeAsBinary(obj) {\n        const deconstruction = deconstructPacket(obj);\n        const pack = this.encodeAsString(deconstruction.packet);\n        const buffers = deconstruction.buffers;\n        buffers.unshift(pack); // add packet info to beginning of data list\n        return buffers; // write all the buffers\n    }\n}\n// see https://stackoverflow.com/questions/8511281/check-if-a-value-is-an-object-in-javascript\nfunction isObject(value) {\n    return Object.prototype.toString.call(value) === \"[object Object]\";\n}\n/**\n * A socket.io Decoder instance\n *\n * @return {Object} decoder\n */\nexport class Decoder extends Emitter {\n    /**\n     * Decoder constructor\n     *\n     * @param {function} reviver - custom reviver to pass down to JSON.stringify\n     */\n    constructor(reviver) {\n        super();\n        this.reviver = reviver;\n    }\n    /**\n     * Decodes an encoded packet string into packet JSON.\n     *\n     * @param {String} obj - encoded packet\n     */\n    add(obj) {\n        let packet;\n        if (typeof obj === \"string\") {\n            if (this.reconstructor) {\n                throw new Error(\"got plaintext data when reconstructing a packet\");\n            }\n            packet = this.decodeString(obj);\n            const isBinaryEvent = packet.type === PacketType.BINARY_EVENT;\n            if (isBinaryEvent || packet.type === PacketType.BINARY_ACK) {\n                packet.type = isBinaryEvent ? PacketType.EVENT : PacketType.ACK;\n                // binary packet's json\n                this.reconstructor = new BinaryReconstructor(packet);\n                // no attachments, labeled binary but no binary data to follow\n                if (packet.attachments === 0) {\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n            else {\n                // non-binary full packet\n                super.emitReserved(\"decoded\", packet);\n            }\n        }\n        else if (isBinary(obj) || obj.base64) {\n            // raw binary data\n            if (!this.reconstructor) {\n                throw new Error(\"got binary data when not reconstructing a packet\");\n            }\n            else {\n                packet = this.reconstructor.takeBinaryData(obj);\n                if (packet) {\n                    // received final buffer\n                    this.reconstructor = null;\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n        }\n        else {\n            throw new Error(\"Unknown type: \" + obj);\n        }\n    }\n    /**\n     * Decode a packet String (JSON data)\n     *\n     * @param {String} str\n     * @return {Object} packet\n     */\n    decodeString(str) {\n        let i = 0;\n        // look up type\n        const p = {\n            type: Number(str.charAt(0)),\n        };\n        if (PacketType[p.type] === undefined) {\n            throw new Error(\"unknown packet type \" + p.type);\n        }\n        // look up attachments if type binary\n        if (p.type === PacketType.BINARY_EVENT ||\n            p.type === PacketType.BINARY_ACK) {\n            const start = i + 1;\n            while (str.charAt(++i) !== \"-\" && i != str.length) { }\n            const buf = str.substring(start, i);\n            if (buf != Number(buf) || str.charAt(i) !== \"-\") {\n                throw new Error(\"Illegal attachments\");\n            }\n            p.attachments = Number(buf);\n        }\n        // look up namespace (if any)\n        if (\"/\" === str.charAt(i + 1)) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (\",\" === c)\n                    break;\n                if (i === str.length)\n                    break;\n            }\n            p.nsp = str.substring(start, i);\n        }\n        else {\n            p.nsp = \"/\";\n        }\n        // look up id\n        const next = str.charAt(i + 1);\n        if (\"\" !== next && Number(next) == next) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (null == c || Number(c) != c) {\n                    --i;\n                    break;\n                }\n                if (i === str.length)\n                    break;\n            }\n            p.id = Number(str.substring(start, i + 1));\n        }\n        // look up json data\n        if (str.charAt(++i)) {\n            const payload = this.tryParse(str.substr(i));\n            if (Decoder.isPayloadValid(p.type, payload)) {\n                p.data = payload;\n            }\n            else {\n                throw new Error(\"invalid payload\");\n            }\n        }\n        return p;\n    }\n    tryParse(str) {\n        try {\n            return JSON.parse(str, this.reviver);\n        }\n        catch (e) {\n            return false;\n        }\n    }\n    static isPayloadValid(type, payload) {\n        switch (type) {\n            case PacketType.CONNECT:\n                return isObject(payload);\n            case PacketType.DISCONNECT:\n                return payload === undefined;\n            case PacketType.CONNECT_ERROR:\n                return typeof payload === \"string\" || isObject(payload);\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                return (Array.isArray(payload) &&\n                    (typeof payload[0] === \"number\" ||\n                        (typeof payload[0] === \"string\" &&\n                            RESERVED_EVENTS.indexOf(payload[0]) === -1)));\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                return Array.isArray(payload);\n        }\n    }\n    /**\n     * Deallocates a parser's resources\n     */\n    destroy() {\n        if (this.reconstructor) {\n            this.reconstructor.finishedReconstruction();\n            this.reconstructor = null;\n        }\n    }\n}\n/**\n * A manager of a binary event's 'buffer sequence'. Should\n * be constructed whenever a packet of type BINARY_EVENT is\n * decoded.\n *\n * @param {Object} packet\n * @return {BinaryReconstructor} initialized reconstructor\n */\nclass BinaryReconstructor {\n    constructor(packet) {\n        this.packet = packet;\n        this.buffers = [];\n        this.reconPack = packet;\n    }\n    /**\n     * Method to be called when binary data received from connection\n     * after a BINARY_EVENT packet.\n     *\n     * @param {Buffer | ArrayBuffer} binData - the raw binary data received\n     * @return {null | Object} returns null if more binary data is expected or\n     *   a reconstructed packet object if all buffers have been received.\n     */\n    takeBinaryData(binData) {\n        this.buffers.push(binData);\n        if (this.buffers.length === this.reconPack.attachments) {\n            // done with buffer list\n            const packet = reconstructPacket(this.reconPack, this.buffers);\n            this.finishedReconstruction();\n            return packet;\n        }\n        return null;\n    }\n    /**\n     * Cleans up binary packet reconstruction variables.\n     */\n    finishedReconstruction() {\n        this.reconPack = null;\n        this.buffers = [];\n    }\n}\n", "const withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nconst isView = (obj) => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj.buffer instanceof ArrayBuffer;\n};\nconst toString = Object.prototype.toString;\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeFile = typeof File === \"function\" ||\n    (typeof File !== \"undefined\" &&\n        toString.call(File) === \"[object FileConstructor]\");\n/**\n * Returns true if obj is a Buffer, an ArrayBuffer, a Blob or a File.\n *\n * @private\n */\nexport function isBinary(obj) {\n    return ((withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj))) ||\n        (withNativeBlob && obj instanceof Blob) ||\n        (withNativeFile && obj instanceof File));\n}\nexport function hasBinary(obj, toJSON) {\n    if (!obj || typeof obj !== \"object\") {\n        return false;\n    }\n    if (Array.isArray(obj)) {\n        for (let i = 0, l = obj.length; i < l; i++) {\n            if (hasBinary(obj[i])) {\n                return true;\n            }\n        }\n        return false;\n    }\n    if (isBinary(obj)) {\n        return true;\n    }\n    if (obj.toJSON &&\n        typeof obj.toJSON === \"function\" &&\n        arguments.length === 1) {\n        return hasBinary(obj.toJSON(), true);\n    }\n    for (const key in obj) {\n        if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {\n            return true;\n        }\n    }\n    return false;\n}\n", "import { isBinary } from \"./is-binary.js\";\n/**\n * Replaces every Buffer | ArrayBuffer | Blob | File in packet with a numbered placeholder.\n *\n * @param {Object} packet - socket.io event packet\n * @return {Object} with deconstructed packet and list of buffers\n * @public\n */\nexport function deconstructPacket(packet) {\n    const buffers = [];\n    const packetData = packet.data;\n    const pack = packet;\n    pack.data = _deconstructPacket(packetData, buffers);\n    pack.attachments = buffers.length; // number of binary 'attachments'\n    return { packet: pack, buffers: buffers };\n}\nfunction _deconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (isBinary(data)) {\n        const placeholder = { _placeholder: true, num: buffers.length };\n        buffers.push(data);\n        return placeholder;\n    }\n    else if (Array.isArray(data)) {\n        const newData = new Array(data.length);\n        for (let i = 0; i < data.length; i++) {\n            newData[i] = _deconstructPacket(data[i], buffers);\n        }\n        return newData;\n    }\n    else if (typeof data === \"object\" && !(data instanceof Date)) {\n        const newData = {};\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                newData[key] = _deconstructPacket(data[key], buffers);\n            }\n        }\n        return newData;\n    }\n    return data;\n}\n/**\n * Reconstructs a binary packet from its placeholder packet and buffers\n *\n * @param {Object} packet - event packet with placeholders\n * @param {Array} buffers - binary buffers to put in placeholder positions\n * @return {Object} reconstructed packet\n * @public\n */\nexport function reconstructPacket(packet, buffers) {\n    packet.data = _reconstructPacket(packet.data, buffers);\n    delete packet.attachments; // no longer useful\n    return packet;\n}\nfunction _reconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (data && data._placeholder === true) {\n        const isIndexValid = typeof data.num === \"number\" &&\n            data.num >= 0 &&\n            data.num < buffers.length;\n        if (isIndexValid) {\n            return buffers[data.num]; // appropriate buffer (should be natural order anyway)\n        }\n        else {\n            throw new Error(\"illegal attachments\");\n        }\n    }\n    else if (Array.isArray(data)) {\n        for (let i = 0; i < data.length; i++) {\n            data[i] = _reconstructPacket(data[i], buffers);\n        }\n    }\n    else if (typeof data === \"object\") {\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                data[key] = _reconstructPacket(data[key], buffers);\n            }\n        }\n    }\n    return data;\n}\n", "export function on(obj, ev, fn) {\n    obj.on(ev, fn);\n    return function subDestroy() {\n        obj.off(ev, fn);\n    };\n}\n", "import { PacketType } from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\n/**\n * Internal events.\n * These events can't be emitted by the user.\n */\nconst RESERVED_EVENTS = Object.freeze({\n    connect: 1,\n    connect_error: 1,\n    disconnect: 1,\n    disconnecting: 1,\n    // EventEmitter reserved events: https://nodejs.org/api/events.html#events_event_newlistener\n    newListener: 1,\n    removeListener: 1,\n});\n/**\n * A Socket is the fundamental class for interacting with the server.\n *\n * A Socket belongs to a certain Namespace (by default /) and uses an underlying {@link Manager} to communicate.\n *\n * @example\n * const socket = io();\n *\n * socket.on(\"connect\", () => {\n *   console.log(\"connected\");\n * });\n *\n * // send an event to the server\n * socket.emit(\"foo\", \"bar\");\n *\n * socket.on(\"foobar\", () => {\n *   // an event was received from the server\n * });\n *\n * // upon disconnection\n * socket.on(\"disconnect\", (reason) => {\n *   console.log(`disconnected due to ${reason}`);\n * });\n */\nexport class Socket extends Emitter {\n    /**\n     * `Socket` constructor.\n     */\n    constructor(io, nsp, opts) {\n        super();\n        /**\n         * Whether the socket is currently connected to the server.\n         *\n         * @example\n         * const socket = io();\n         *\n         * socket.on(\"connect\", () => {\n         *   console.log(socket.connected); // true\n         * });\n         *\n         * socket.on(\"disconnect\", () => {\n         *   console.log(socket.connected); // false\n         * });\n         */\n        this.connected = false;\n        /**\n         * Whether the connection state was recovered after a temporary disconnection. In that case, any missed packets will\n         * be transmitted by the server.\n         */\n        this.recovered = false;\n        /**\n         * Buffer for packets received before the CONNECT packet\n         */\n        this.receiveBuffer = [];\n        /**\n         * Buffer for packets that will be sent once the socket is connected\n         */\n        this.sendBuffer = [];\n        /**\n         * The queue of packets to be sent with retry in case of failure.\n         *\n         * Packets are sent one by one, each waiting for the server acknowledgement, in order to guarantee the delivery order.\n         * @private\n         */\n        this._queue = [];\n        /**\n         * A sequence to generate the ID of the {@link QueuedPacket}.\n         * @private\n         */\n        this._queueSeq = 0;\n        this.ids = 0;\n        this.acks = {};\n        this.flags = {};\n        this.io = io;\n        this.nsp = nsp;\n        if (opts && opts.auth) {\n            this.auth = opts.auth;\n        }\n        this._opts = Object.assign({}, opts);\n        if (this.io._autoConnect)\n            this.open();\n    }\n    /**\n     * Whether the socket is currently disconnected\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"connect\", () => {\n     *   console.log(socket.disconnected); // false\n     * });\n     *\n     * socket.on(\"disconnect\", () => {\n     *   console.log(socket.disconnected); // true\n     * });\n     */\n    get disconnected() {\n        return !this.connected;\n    }\n    /**\n     * Subscribe to open, close and packet events\n     *\n     * @private\n     */\n    subEvents() {\n        if (this.subs)\n            return;\n        const io = this.io;\n        this.subs = [\n            on(io, \"open\", this.onopen.bind(this)),\n            on(io, \"packet\", this.onpacket.bind(this)),\n            on(io, \"error\", this.onerror.bind(this)),\n            on(io, \"close\", this.onclose.bind(this)),\n        ];\n    }\n    /**\n     * Whether the Socket will try to reconnect when its Manager connects or reconnects.\n     *\n     * @example\n     * const socket = io();\n     *\n     * console.log(socket.active); // true\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   if (reason === \"io server disconnect\") {\n     *     // the disconnection was initiated by the server, you need to manually reconnect\n     *     console.log(socket.active); // false\n     *   }\n     *   // else the socket will automatically try to reconnect\n     *   console.log(socket.active); // true\n     * });\n     */\n    get active() {\n        return !!this.subs;\n    }\n    /**\n     * \"Opens\" the socket.\n     *\n     * @example\n     * const socket = io({\n     *   autoConnect: false\n     * });\n     *\n     * socket.connect();\n     */\n    connect() {\n        if (this.connected)\n            return this;\n        this.subEvents();\n        if (!this.io[\"_reconnecting\"])\n            this.io.open(); // ensure open\n        if (\"open\" === this.io._readyState)\n            this.onopen();\n        return this;\n    }\n    /**\n     * Alias for {@link connect()}.\n     */\n    open() {\n        return this.connect();\n    }\n    /**\n     * Sends a `message` event.\n     *\n     * This method mimics the WebSocket.send() method.\n     *\n     * @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send\n     *\n     * @example\n     * socket.send(\"hello\");\n     *\n     * // this is equivalent to\n     * socket.emit(\"message\", \"hello\");\n     *\n     * @return self\n     */\n    send(...args) {\n        args.unshift(\"message\");\n        this.emit.apply(this, args);\n        return this;\n    }\n    /**\n     * Override `emit`.\n     * If the event is in `events`, it's emitted normally.\n     *\n     * @example\n     * socket.emit(\"hello\", \"world\");\n     *\n     * // all serializable datastructures are supported (no need to call JSON.stringify)\n     * socket.emit(\"hello\", 1, \"2\", { 3: [\"4\"], 5: Uint8Array.from([6]) });\n     *\n     * // with an acknowledgement from the server\n     * socket.emit(\"hello\", \"world\", (val) => {\n     *   // ...\n     * });\n     *\n     * @return self\n     */\n    emit(ev, ...args) {\n        if (RESERVED_EVENTS.hasOwnProperty(ev)) {\n            throw new Error('\"' + ev.toString() + '\" is a reserved event name');\n        }\n        args.unshift(ev);\n        if (this._opts.retries && !this.flags.fromQueue && !this.flags.volatile) {\n            this._addToQueue(args);\n            return this;\n        }\n        const packet = {\n            type: PacketType.EVENT,\n            data: args,\n        };\n        packet.options = {};\n        packet.options.compress = this.flags.compress !== false;\n        // event ack callback\n        if (\"function\" === typeof args[args.length - 1]) {\n            const id = this.ids++;\n            const ack = args.pop();\n            this._registerAckCallback(id, ack);\n            packet.id = id;\n        }\n        const isTransportWritable = this.io.engine &&\n            this.io.engine.transport &&\n            this.io.engine.transport.writable;\n        const discardPacket = this.flags.volatile && (!isTransportWritable || !this.connected);\n        if (discardPacket) {\n        }\n        else if (this.connected) {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        }\n        else {\n            this.sendBuffer.push(packet);\n        }\n        this.flags = {};\n        return this;\n    }\n    /**\n     * @private\n     */\n    _registerAckCallback(id, ack) {\n        var _a;\n        const timeout = (_a = this.flags.timeout) !== null && _a !== void 0 ? _a : this._opts.ackTimeout;\n        if (timeout === undefined) {\n            this.acks[id] = ack;\n            return;\n        }\n        // @ts-ignore\n        const timer = this.io.setTimeoutFn(() => {\n            delete this.acks[id];\n            for (let i = 0; i < this.sendBuffer.length; i++) {\n                if (this.sendBuffer[i].id === id) {\n                    this.sendBuffer.splice(i, 1);\n                }\n            }\n            ack.call(this, new Error(\"operation has timed out\"));\n        }, timeout);\n        this.acks[id] = (...args) => {\n            // @ts-ignore\n            this.io.clearTimeoutFn(timer);\n            ack.apply(this, [null, ...args]);\n        };\n    }\n    /**\n     * Emits an event and waits for an acknowledgement\n     *\n     * @example\n     * // without timeout\n     * const response = await socket.emitWithAck(\"hello\", \"world\");\n     *\n     * // with a specific timeout\n     * try {\n     *   const response = await socket.timeout(1000).emitWithAck(\"hello\", \"world\");\n     * } catch (err) {\n     *   // the server did not acknowledge the event in the given delay\n     * }\n     *\n     * @return a Promise that will be fulfilled when the server acknowledges the event\n     */\n    emitWithAck(ev, ...args) {\n        // the timeout flag is optional\n        const withErr = this.flags.timeout !== undefined || this._opts.ackTimeout !== undefined;\n        return new Promise((resolve, reject) => {\n            args.push((arg1, arg2) => {\n                if (withErr) {\n                    return arg1 ? reject(arg1) : resolve(arg2);\n                }\n                else {\n                    return resolve(arg1);\n                }\n            });\n            this.emit(ev, ...args);\n        });\n    }\n    /**\n     * Add the packet to the queue.\n     * @param args\n     * @private\n     */\n    _addToQueue(args) {\n        let ack;\n        if (typeof args[args.length - 1] === \"function\") {\n            ack = args.pop();\n        }\n        const packet = {\n            id: this._queueSeq++,\n            tryCount: 0,\n            pending: false,\n            args,\n            flags: Object.assign({ fromQueue: true }, this.flags),\n        };\n        args.push((err, ...responseArgs) => {\n            if (packet !== this._queue[0]) {\n                // the packet has already been acknowledged\n                return;\n            }\n            const hasError = err !== null;\n            if (hasError) {\n                if (packet.tryCount > this._opts.retries) {\n                    this._queue.shift();\n                    if (ack) {\n                        ack(err);\n                    }\n                }\n            }\n            else {\n                this._queue.shift();\n                if (ack) {\n                    ack(null, ...responseArgs);\n                }\n            }\n            packet.pending = false;\n            return this._drainQueue();\n        });\n        this._queue.push(packet);\n        this._drainQueue();\n    }\n    /**\n     * Send the first packet of the queue, and wait for an acknowledgement from the server.\n     * @param force - whether to resend a packet that has not been acknowledged yet\n     *\n     * @private\n     */\n    _drainQueue(force = false) {\n        if (!this.connected || this._queue.length === 0) {\n            return;\n        }\n        const packet = this._queue[0];\n        if (packet.pending && !force) {\n            return;\n        }\n        packet.pending = true;\n        packet.tryCount++;\n        this.flags = packet.flags;\n        this.emit.apply(this, packet.args);\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param packet\n     * @private\n     */\n    packet(packet) {\n        packet.nsp = this.nsp;\n        this.io._packet(packet);\n    }\n    /**\n     * Called upon engine `open`.\n     *\n     * @private\n     */\n    onopen() {\n        if (typeof this.auth == \"function\") {\n            this.auth((data) => {\n                this._sendConnectPacket(data);\n            });\n        }\n        else {\n            this._sendConnectPacket(this.auth);\n        }\n    }\n    /**\n     * Sends a CONNECT packet to initiate the Socket.IO session.\n     *\n     * @param data\n     * @private\n     */\n    _sendConnectPacket(data) {\n        this.packet({\n            type: PacketType.CONNECT,\n            data: this._pid\n                ? Object.assign({ pid: this._pid, offset: this._lastOffset }, data)\n                : data,\n        });\n    }\n    /**\n     * Called upon engine or manager `error`.\n     *\n     * @param err\n     * @private\n     */\n    onerror(err) {\n        if (!this.connected) {\n            this.emitReserved(\"connect_error\", err);\n        }\n    }\n    /**\n     * Called upon engine `close`.\n     *\n     * @param reason\n     * @param description\n     * @private\n     */\n    onclose(reason, description) {\n        this.connected = false;\n        delete this.id;\n        this.emitReserved(\"disconnect\", reason, description);\n    }\n    /**\n     * Called with socket packet.\n     *\n     * @param packet\n     * @private\n     */\n    onpacket(packet) {\n        const sameNamespace = packet.nsp === this.nsp;\n        if (!sameNamespace)\n            return;\n        switch (packet.type) {\n            case PacketType.CONNECT:\n                if (packet.data && packet.data.sid) {\n                    this.onconnect(packet.data.sid, packet.data.pid);\n                }\n                else {\n                    this.emitReserved(\"connect_error\", new Error(\"It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)\"));\n                }\n                break;\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                this.onevent(packet);\n                break;\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                this.onack(packet);\n                break;\n            case PacketType.DISCONNECT:\n                this.ondisconnect();\n                break;\n            case PacketType.CONNECT_ERROR:\n                this.destroy();\n                const err = new Error(packet.data.message);\n                // @ts-ignore\n                err.data = packet.data.data;\n                this.emitReserved(\"connect_error\", err);\n                break;\n        }\n    }\n    /**\n     * Called upon a server event.\n     *\n     * @param packet\n     * @private\n     */\n    onevent(packet) {\n        const args = packet.data || [];\n        if (null != packet.id) {\n            args.push(this.ack(packet.id));\n        }\n        if (this.connected) {\n            this.emitEvent(args);\n        }\n        else {\n            this.receiveBuffer.push(Object.freeze(args));\n        }\n    }\n    emitEvent(args) {\n        if (this._anyListeners && this._anyListeners.length) {\n            const listeners = this._anyListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, args);\n            }\n        }\n        super.emit.apply(this, args);\n        if (this._pid && args.length && typeof args[args.length - 1] === \"string\") {\n            this._lastOffset = args[args.length - 1];\n        }\n    }\n    /**\n     * Produces an ack callback to emit with an event.\n     *\n     * @private\n     */\n    ack(id) {\n        const self = this;\n        let sent = false;\n        return function (...args) {\n            // prevent double callbacks\n            if (sent)\n                return;\n            sent = true;\n            self.packet({\n                type: PacketType.ACK,\n                id: id,\n                data: args,\n            });\n        };\n    }\n    /**\n     * Called upon a server acknowlegement.\n     *\n     * @param packet\n     * @private\n     */\n    onack(packet) {\n        const ack = this.acks[packet.id];\n        if (\"function\" === typeof ack) {\n            ack.apply(this, packet.data);\n            delete this.acks[packet.id];\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon server connect.\n     *\n     * @private\n     */\n    onconnect(id, pid) {\n        this.id = id;\n        this.recovered = pid && this._pid === pid;\n        this._pid = pid; // defined only if connection state recovery is enabled\n        this.connected = true;\n        this.emitBuffered();\n        this.emitReserved(\"connect\");\n        this._drainQueue(true);\n    }\n    /**\n     * Emit buffered events (received and emitted).\n     *\n     * @private\n     */\n    emitBuffered() {\n        this.receiveBuffer.forEach((args) => this.emitEvent(args));\n        this.receiveBuffer = [];\n        this.sendBuffer.forEach((packet) => {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        });\n        this.sendBuffer = [];\n    }\n    /**\n     * Called upon server disconnect.\n     *\n     * @private\n     */\n    ondisconnect() {\n        this.destroy();\n        this.onclose(\"io server disconnect\");\n    }\n    /**\n     * Called upon forced client/server side disconnections,\n     * this method ensures the manager stops tracking us and\n     * that reconnections don't get triggered for this.\n     *\n     * @private\n     */\n    destroy() {\n        if (this.subs) {\n            // clean subscriptions to avoid reconnections\n            this.subs.forEach((subDestroy) => subDestroy());\n            this.subs = undefined;\n        }\n        this.io[\"_destroy\"](this);\n    }\n    /**\n     * Disconnects the socket manually. In that case, the socket will not try to reconnect.\n     *\n     * If this is the last active Socket instance of the {@link Manager}, the low-level connection will be closed.\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   // console.log(reason); prints \"io client disconnect\"\n     * });\n     *\n     * socket.disconnect();\n     *\n     * @return self\n     */\n    disconnect() {\n        if (this.connected) {\n            this.packet({ type: PacketType.DISCONNECT });\n        }\n        // remove socket from pool\n        this.destroy();\n        if (this.connected) {\n            // fire events\n            this.onclose(\"io client disconnect\");\n        }\n        return this;\n    }\n    /**\n     * Alias for {@link disconnect()}.\n     *\n     * @return self\n     */\n    close() {\n        return this.disconnect();\n    }\n    /**\n     * Sets the compress flag.\n     *\n     * @example\n     * socket.compress(false).emit(\"hello\");\n     *\n     * @param compress - if `true`, compresses the sending data\n     * @return self\n     */\n    compress(compress) {\n        this.flags.compress = compress;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the event message will be dropped when this socket is not\n     * ready to send messages.\n     *\n     * @example\n     * socket.volatile.emit(\"hello\"); // the server may or may not receive it\n     *\n     * @returns self\n     */\n    get volatile() {\n        this.flags.volatile = true;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the callback will be called with an error when the\n     * given number of milliseconds have elapsed without an acknowledgement from the server:\n     *\n     * @example\n     * socket.timeout(5000).emit(\"my-event\", (err) => {\n     *   if (err) {\n     *     // the server did not acknowledge the event in the given delay\n     *   }\n     * });\n     *\n     * @returns self\n     */\n    timeout(timeout) {\n        this.flags.timeout = timeout;\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * @example\n     * socket.onAny((event, ...args) => {\n     *   console.log(`got ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * @example\n     * socket.prependAny((event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * }\n     *\n     * socket.onAny(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAny(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAny();\n     *\n     * @param listener\n     */\n    offAny(listener) {\n        if (!this._anyListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAny() {\n        return this._anyListeners || [];\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.onAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.prependAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * }\n     *\n     * socket.onAnyOutgoing(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAnyOutgoing(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAnyOutgoing();\n     *\n     * @param [listener] - the catch-all listener (optional)\n     */\n    offAnyOutgoing(listener) {\n        if (!this._anyOutgoingListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyOutgoingListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyOutgoingListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAnyOutgoing() {\n        return this._anyOutgoingListeners || [];\n    }\n    /**\n     * Notify the listeners for each packet sent\n     *\n     * @param packet\n     *\n     * @private\n     */\n    notifyOutgoingListeners(packet) {\n        if (this._anyOutgoingListeners && this._anyOutgoingListeners.length) {\n            const listeners = this._anyOutgoingListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, packet.data);\n            }\n        }\n    }\n}\n", "/**\n * Initialize backoff timer with `opts`.\n *\n * - `min` initial timeout in milliseconds [100]\n * - `max` max timeout [10000]\n * - `jitter` [0]\n * - `factor` [2]\n *\n * @param {Object} opts\n * @api public\n */\nexport function Backoff(opts) {\n    opts = opts || {};\n    this.ms = opts.min || 100;\n    this.max = opts.max || 10000;\n    this.factor = opts.factor || 2;\n    this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;\n    this.attempts = 0;\n}\n/**\n * Return the backoff duration.\n *\n * @return {Number}\n * @api public\n */\nBackoff.prototype.duration = function () {\n    var ms = this.ms * Math.pow(this.factor, this.attempts++);\n    if (this.jitter) {\n        var rand = Math.random();\n        var deviation = Math.floor(rand * this.jitter * ms);\n        ms = (Math.floor(rand * 10) & 1) == 0 ? ms - deviation : ms + deviation;\n    }\n    return Math.min(ms, this.max) | 0;\n};\n/**\n * Reset the number of attempts.\n *\n * @api public\n */\nBackoff.prototype.reset = function () {\n    this.attempts = 0;\n};\n/**\n * Set the minimum duration\n *\n * @api public\n */\nBackoff.prototype.setMin = function (min) {\n    this.ms = min;\n};\n/**\n * Set the maximum duration\n *\n * @api public\n */\nBackoff.prototype.setMax = function (max) {\n    this.max = max;\n};\n/**\n * Set the jitter\n *\n * @api public\n */\nBackoff.prototype.setJitter = function (jitter) {\n    this.jitter = jitter;\n};\n", "import { Socket as Engine, installTimerFunctions, nextTick, } from \"engine.io-client\";\nimport { Socket } from \"./socket.js\";\nimport * as parser from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Backoff } from \"./contrib/backo2.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\nexport class Manager extends Emitter {\n    constructor(uri, opts) {\n        var _a;\n        super();\n        this.nsps = {};\n        this.subs = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = undefined;\n        }\n        opts = opts || {};\n        opts.path = opts.path || \"/socket.io\";\n        this.opts = opts;\n        installTimerFunctions(this, opts);\n        this.reconnection(opts.reconnection !== false);\n        this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);\n        this.reconnectionDelay(opts.reconnectionDelay || 1000);\n        this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);\n        this.randomizationFactor((_a = opts.randomizationFactor) !== null && _a !== void 0 ? _a : 0.5);\n        this.backoff = new Backoff({\n            min: this.reconnectionDelay(),\n            max: this.reconnectionDelayMax(),\n            jitter: this.randomizationFactor(),\n        });\n        this.timeout(null == opts.timeout ? 20000 : opts.timeout);\n        this._readyState = \"closed\";\n        this.uri = uri;\n        const _parser = opts.parser || parser;\n        this.encoder = new _parser.Encoder();\n        this.decoder = new _parser.Decoder();\n        this._autoConnect = opts.autoConnect !== false;\n        if (this._autoConnect)\n            this.open();\n    }\n    reconnection(v) {\n        if (!arguments.length)\n            return this._reconnection;\n        this._reconnection = !!v;\n        return this;\n    }\n    reconnectionAttempts(v) {\n        if (v === undefined)\n            return this._reconnectionAttempts;\n        this._reconnectionAttempts = v;\n        return this;\n    }\n    reconnectionDelay(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelay;\n        this._reconnectionDelay = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMin(v);\n        return this;\n    }\n    randomizationFactor(v) {\n        var _a;\n        if (v === undefined)\n            return this._randomizationFactor;\n        this._randomizationFactor = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setJitter(v);\n        return this;\n    }\n    reconnectionDelayMax(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelayMax;\n        this._reconnectionDelayMax = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMax(v);\n        return this;\n    }\n    timeout(v) {\n        if (!arguments.length)\n            return this._timeout;\n        this._timeout = v;\n        return this;\n    }\n    /**\n     * Starts trying to reconnect if reconnection is enabled and we have not\n     * started reconnecting yet\n     *\n     * @private\n     */\n    maybeReconnectOnOpen() {\n        // Only try to reconnect if it's the first time we're connecting\n        if (!this._reconnecting &&\n            this._reconnection &&\n            this.backoff.attempts === 0) {\n            // keeps reconnection from firing twice for the same reconnection loop\n            this.reconnect();\n        }\n    }\n    /**\n     * Sets the current transport `socket`.\n     *\n     * @param {Function} fn - optional, callback\n     * @return self\n     * @public\n     */\n    open(fn) {\n        if (~this._readyState.indexOf(\"open\"))\n            return this;\n        this.engine = new Engine(this.uri, this.opts);\n        const socket = this.engine;\n        const self = this;\n        this._readyState = \"opening\";\n        this.skipReconnect = false;\n        // emit `open`\n        const openSubDestroy = on(socket, \"open\", function () {\n            self.onopen();\n            fn && fn();\n        });\n        const onError = (err) => {\n            this.cleanup();\n            this._readyState = \"closed\";\n            this.emitReserved(\"error\", err);\n            if (fn) {\n                fn(err);\n            }\n            else {\n                // Only do this if there is no fn to handle the error\n                this.maybeReconnectOnOpen();\n            }\n        };\n        // emit `error`\n        const errorSub = on(socket, \"error\", onError);\n        if (false !== this._timeout) {\n            const timeout = this._timeout;\n            // set timer\n            const timer = this.setTimeoutFn(() => {\n                openSubDestroy();\n                onError(new Error(\"timeout\"));\n                socket.close();\n            }, timeout);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n        this.subs.push(openSubDestroy);\n        this.subs.push(errorSub);\n        return this;\n    }\n    /**\n     * Alias for open()\n     *\n     * @return self\n     * @public\n     */\n    connect(fn) {\n        return this.open(fn);\n    }\n    /**\n     * Called upon transport open.\n     *\n     * @private\n     */\n    onopen() {\n        // clear old subs\n        this.cleanup();\n        // mark as open\n        this._readyState = \"open\";\n        this.emitReserved(\"open\");\n        // add new subs\n        const socket = this.engine;\n        this.subs.push(on(socket, \"ping\", this.onping.bind(this)), on(socket, \"data\", this.ondata.bind(this)), on(socket, \"error\", this.onerror.bind(this)), on(socket, \"close\", this.onclose.bind(this)), on(this.decoder, \"decoded\", this.ondecoded.bind(this)));\n    }\n    /**\n     * Called upon a ping.\n     *\n     * @private\n     */\n    onping() {\n        this.emitReserved(\"ping\");\n    }\n    /**\n     * Called with data.\n     *\n     * @private\n     */\n    ondata(data) {\n        try {\n            this.decoder.add(data);\n        }\n        catch (e) {\n            this.onclose(\"parse error\", e);\n        }\n    }\n    /**\n     * Called when parser fully decodes a packet.\n     *\n     * @private\n     */\n    ondecoded(packet) {\n        // the nextTick call prevents an exception in a user-provided event listener from triggering a disconnection due to a \"parse error\"\n        nextTick(() => {\n            this.emitReserved(\"packet\", packet);\n        }, this.setTimeoutFn);\n    }\n    /**\n     * Called upon socket error.\n     *\n     * @private\n     */\n    onerror(err) {\n        this.emitReserved(\"error\", err);\n    }\n    /**\n     * Creates a new socket for the given `nsp`.\n     *\n     * @return {Socket}\n     * @public\n     */\n    socket(nsp, opts) {\n        let socket = this.nsps[nsp];\n        if (!socket) {\n            socket = new Socket(this, nsp, opts);\n            this.nsps[nsp] = socket;\n        }\n        else if (this._autoConnect && !socket.active) {\n            socket.connect();\n        }\n        return socket;\n    }\n    /**\n     * Called upon a socket close.\n     *\n     * @param socket\n     * @private\n     */\n    _destroy(socket) {\n        const nsps = Object.keys(this.nsps);\n        for (const nsp of nsps) {\n            const socket = this.nsps[nsp];\n            if (socket.active) {\n                return;\n            }\n        }\n        this._close();\n    }\n    /**\n     * Writes a packet.\n     *\n     * @param packet\n     * @private\n     */\n    _packet(packet) {\n        const encodedPackets = this.encoder.encode(packet);\n        for (let i = 0; i < encodedPackets.length; i++) {\n            this.engine.write(encodedPackets[i], packet.options);\n        }\n    }\n    /**\n     * Clean up transport subscriptions and packet buffer.\n     *\n     * @private\n     */\n    cleanup() {\n        this.subs.forEach((subDestroy) => subDestroy());\n        this.subs.length = 0;\n        this.decoder.destroy();\n    }\n    /**\n     * Close the current socket.\n     *\n     * @private\n     */\n    _close() {\n        this.skipReconnect = true;\n        this._reconnecting = false;\n        this.onclose(\"forced close\");\n        if (this.engine)\n            this.engine.close();\n    }\n    /**\n     * Alias for close()\n     *\n     * @private\n     */\n    disconnect() {\n        return this._close();\n    }\n    /**\n     * Called upon engine close.\n     *\n     * @private\n     */\n    onclose(reason, description) {\n        this.cleanup();\n        this.backoff.reset();\n        this._readyState = \"closed\";\n        this.emitReserved(\"close\", reason, description);\n        if (this._reconnection && !this.skipReconnect) {\n            this.reconnect();\n        }\n    }\n    /**\n     * Attempt a reconnection.\n     *\n     * @private\n     */\n    reconnect() {\n        if (this._reconnecting || this.skipReconnect)\n            return this;\n        const self = this;\n        if (this.backoff.attempts >= this._reconnectionAttempts) {\n            this.backoff.reset();\n            this.emitReserved(\"reconnect_failed\");\n            this._reconnecting = false;\n        }\n        else {\n            const delay = this.backoff.duration();\n            this._reconnecting = true;\n            const timer = this.setTimeoutFn(() => {\n                if (self.skipReconnect)\n                    return;\n                this.emitReserved(\"reconnect_attempt\", self.backoff.attempts);\n                // check again for the case socket closed in above events\n                if (self.skipReconnect)\n                    return;\n                self.open((err) => {\n                    if (err) {\n                        self._reconnecting = false;\n                        self.reconnect();\n                        this.emitReserved(\"reconnect_error\", err);\n                    }\n                    else {\n                        self.onreconnect();\n                    }\n                });\n            }, delay);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n    }\n    /**\n     * Called upon successful reconnect.\n     *\n     * @private\n     */\n    onreconnect() {\n        const attempt = this.backoff.attempts;\n        this._reconnecting = false;\n        this.backoff.reset();\n        this.emitReserved(\"reconnect\", attempt);\n    }\n}\n", "import { url } from \"./url.js\";\nimport { Manager } from \"./manager.js\";\nimport { Socket } from \"./socket.js\";\n/**\n * Managers cache.\n */\nconst cache = {};\nfunction lookup(uri, opts) {\n    if (typeof uri === \"object\") {\n        opts = uri;\n        uri = undefined;\n    }\n    opts = opts || {};\n    const parsed = url(uri, opts.path || \"/socket.io\");\n    const source = parsed.source;\n    const id = parsed.id;\n    const path = parsed.path;\n    const sameNamespace = cache[id] && path in cache[id][\"nsps\"];\n    const newConnection = opts.forceNew ||\n        opts[\"force new connection\"] ||\n        false === opts.multiplex ||\n        sameNamespace;\n    let io;\n    if (newConnection) {\n        io = new Manager(source, opts);\n    }\n    else {\n        if (!cache[id]) {\n            cache[id] = new Manager(source, opts);\n        }\n        io = cache[id];\n    }\n    if (parsed.query && !opts.query) {\n        opts.query = parsed.queryKey;\n    }\n    return io.socket(parsed.path, opts);\n}\n// so that \"lookup\" can be used both as a function (e.g. `io(...)`) and as a\n// namespace (e.g. `io.connect(...)`), for backward compatibility\nObject.assign(lookup, {\n    Manager,\n    Socket,\n    io: lookup,\n    connect: lookup,\n});\n/**\n * Protocol version.\n *\n * @public\n */\nexport { protocol } from \"socket.io-parser\";\n/**\n * Expose constructors for standalone build.\n *\n * @public\n */\nexport { Manager, Socket, lookup as io, lookup as connect, lookup as default, };\n"],
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"delay", "factor", "depth", "reason", "lookup", "options", "eMsg", "uibuilder", "uibuilder_module_default", "uibuilder", "UibVar"]
+  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\n// Namespaces - See https://stackoverflow.com/a/52572048/1309986\n// const NAMESPACES = {\n//     svg: 'http://www.w3.org/2000/svg',\n//     html: 'http://www.w3.org/1999/xhtml',\n//     xml: 'http://www.w3.org/XML/1998/namespace',\n//     xlink: 'http://www.w3.org/1999/xlink',\n//     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n// }\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    //#region ---- Internal Methods ----\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                if (attrib === 'class' && Array.isArray(comp.attributes[attrib])) comp.attributes[attrib].join(' ')\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n    } // --- end of _uiManager ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    //#endregion ---- -------- ----\n    //#region ---- External Methods ----\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {HTMLElement|null} Selected HTML element or null\n     */\n    $(cssSelector) {\n        /** @type {*} Some kind of HTML element */\n        let el = document.querySelector(cssSelector)\n\n        if (!el) {\n            Ui.log(1, 'Uib:$', `No element found for CSS selector ${cssSelector}`)()\n            return null\n        }\n\n        if ( el.nodeName === 'TEMPLATE' ) {\n            el = el.content.firstElementChild\n            if (!el) {\n                Ui.log(0, 'Uib:$', `Template selected for CSS selector ${cssSelector} but it is empty`)()\n                return null\n            }\n        }\n\n        return el\n    }\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {string} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {HTMLElement[]} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$(cssSelector) {\n        return Array.from(document.querySelectorAll(cssSelector))\n    }\n\n    /** Add 1 or several class names to an element\n     * @param {string|string[]} classNames Single or array of classnames\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    addClass(classNames, el) {\n        if (!Array.isArray(classNames)) classNames = [classNames]\n        if (el) el.classList.add(...classNames)\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n                if (attrib.name === 'class') thisOut.classes = Array.from(node.classList)\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    /** Remove All, 1 or more class names from an element\n     * @param {undefined|null|\"\"|string|string[]} classNames Single or array of classnames. If undefined, \"\" or null, remove all classes\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    removeClass(classNames, el) {\n        if (!classNames) {\n            el.removeAttribute('class')\n            return\n        }\n        if (!Array.isArray(classNames)) classNames = [classNames]\n        if (el) el.classList.remove(...classNames)\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += `<div>${msg.payload}</div>`\n        if (ui.content) content += `<div>${ui.content}</div>`\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        console.log(this)\n        this._uiManager(msg)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName) {\n                if (propName === 'classes') propName = 'class'\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    const p = {}\n                    // Nightmare of different object types in a DOM Element!\n                    const cType = prop.constructor.name.toLowerCase()\n                    if (cType === 'namednodemap') {\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                    } else if (!cType.includes('map')) { // Ordinary properties (not a mapped type)\n                        p[propName] = prop\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                    }\n                    if (p.class) p.classes = Array.from(node.classList)\n                    out.push(p)\n                }\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    /** External alias for _uiComposeComponent\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    //#endregion ---- -------- ----\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n", "/* This is the Front-End JavaScript for uibuilder  in HTML Module form\n  It provides a number of global objects that can be used in your own javascript.\n  see the docs folder `./docs/uibuilder.module.md` for details of how to use this fully.\n\n  Please use the default index.js file for your own code and leave this as-is.\n  See Uib._meta for client version string\n\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n//#region --- Type Defs --- //\n/**\n * A string containing HTML markup\n * @typedef {string} html\n */\n//#endregion --- Type Defs --- //\n\n//#region --- We need the Socket.IO & ui libraries & the uib-var component  --- //\n// @ts-ignore - Note: Only works when using esbuild to bundle\nimport Ui from './ui'\nimport UibVar from '../components/uib-var'\nimport io from 'socket.io-client'\n\n// TODO - Maybe - check if already loaded as window['io']?\n// TODO - Maybe - Should this be moved to inside the class - would know the httpRoot then so less need to guess?\n// TODO           Or, could pull the cookie processing out of the class\n// const ioLocns = [ // Likely locations of the Socket.IO client library\n//     // Where it should normally be\n//     '../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and haven't changed httpNodeRoot\n//     '/uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and have changed httpNodeRoot\n//     '../../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Direct from the Internet - last ditch attempt\n//     'https://cdn.jsdelivr.net/npm/socket.io-client/+esm',\n// ]\n\n// let io\n// for (const locn of ioLocns) {\n//     try {\n//         ({ io } = await import(locn))\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library found at '${locn}'`)()\n//     } catch (e) {\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library not found at '${locn}'`)()\n//     }\n//     if (io) break\n// }\n// if (!io) log('error', 'uibuilder.module.js', 'Socket.IO client failed to load')()\n//#endregion -------- -------- -------- //\n\nconst version = '6.8.0-src'\n\n// TODO Add option to allow log events to be sent back to Node-RED as uib ctrl msgs\n//#region --- Module-level utility functions --- //\n\n// @ts-ignore Detect whether the loaded library is minified or not\nconst isMinified = !(/param/).test(function (param) { }) // eslint-disable-line no-unused-vars\n\n//#region --- print/console - debugging output functions --- //\n\n/** Default log level - Error & Warn */\nlet logLevel = isMinified ? 0 : 1  // When using minified lib, assume production and only log errors otherwise also log warn\n// function changeLogLevel(level) {\n//     logLevel = level\n//     console.trace = logLevel < 4 ? function(){} : console.trace\n//     console.debug = logLevel < 2 ? function(){} : console.debug\n//     if ( logLevel < 1 ) {\n//         console.log = console.group = console.groupEnd =  function(){}\n//     }\n// }\n\n// Experimental\nconst LOG_STYLES = {\n    // 0\n    error: {\n        css: 'background: red; color: black;',\n        txtCss: 'color: red; ',\n        pre: '\u26D4 ',\n        console: 'error',  // or trace\n    },\n    // 1\n    warn: {\n        css: 'background: darkorange; color: black;',\n        txtCss: 'color: darkorange; ',\n        pre: '\u26A0 ',\n        console: 'warn',\n    },\n    // 2\n    info: {\n        css: 'background: aqua; color: black;',\n        txtCss: 'color: aqua;',\n        pre: '\u2757 ',\n        console: 'info',\n    },\n    // 3\n    log: {\n        css: 'background: grey; color: yellow;',\n        txtCss: 'color: grey;',\n        pre: '',\n        console: 'log',\n    },\n    // 4\n    debug: {\n        css: 'background: chartreuse; color: black;',\n        txtCss: 'color: chartreuse;',\n        pre: '',\n        console: 'debug',\n    },\n    // 5\n    trace: {\n        css: 'background: indigo; color: yellow;',\n        txtCss: 'color: hotpink;',\n        pre: '',\n        console: 'log',\n    },\n\n    names: ['error', 'warn', 'info', 'log', 'debug', 'trace'],\n    reset: 'color: inherit;',\n    head: 'font-weight:bold; font-style:italic;',\n    level: 'font-weight:bold; border-radius: 3px; padding: 2px 5px; display:inline-block;',\n}\n/** Custom logging. e.g. log(2, 'here:there', 'jiminy', {fred:'jim'})()\n * @returns {Function} Log function @example log(2, 'here:there', 'jiminy', {fred:'jim'})()\n */\nfunction log() {\n    // Get the args\n    const args = Array.prototype.slice.call(arguments)\n\n    // 1st arg is the log level/type\n    let level = args.shift()\n    let strLevel\n    switch (level) {\n        case 'trace':\n        case 5: {\n            if (logLevel < 5) break\n            level = 5 // make sure level is numeric\n            strLevel = 'trace'\n            break\n        }\n\n        case 'debug':\n        case 4: {\n            if (logLevel < 4) break\n            level = 4\n            strLevel = 'debug'\n            break\n        }\n\n        case 'log':\n        case 3: {\n            if (logLevel < 3) break\n            level = 3\n            strLevel = 'log'\n            break\n        }\n\n        case 'info':\n        case '':\n        case 2: {\n            if (logLevel < 2) break\n            level = 2\n            strLevel = 'info'\n            break\n        }\n\n        case 'warn':\n        case 1: {\n            if (logLevel < 1) break\n            level = 1\n            strLevel = 'warn'\n            break\n        }\n\n        case 'error':\n        case 'err':\n        case 0: {\n            if (logLevel < 0) break\n            level = 0\n            strLevel = 'error'\n            break\n        }\n\n        default: {\n            level = -1\n            break\n        }\n\n    }\n\n    // If set to something unknown, no log output\n    if (strLevel === undefined) return function () { }\n\n    // 2nd arg is a heading that will be colour highlighted\n    const head = args.shift()\n\n    // Bind back to console.log (could use console[strLevel] but some levels ignore some formatting, use console.xxx directly or dedicated fn)\n    return Function.prototype.bind.call(\n        console[LOG_STYLES[strLevel].console],\n        console,\n        `%c${LOG_STYLES[strLevel].pre}${strLevel}%c [${head}]`, `${LOG_STYLES.level} ${LOG_STYLES[strLevel].css}`, `${LOG_STYLES.head} ${LOG_STYLES[strLevel].txtCss}`,\n        ...args\n    )\n}\n//#endregion\n\n/** A hack to dynamically load a remote module and wait until it is loaded\n * @param {string} url The URL of the module to load\n * @returns {object|null} Either the result object or null (if the load fails)\n */\n// function loadModule(url) { // eslint-disable-line no-unused-vars\n//     let done\n\n//     import(url)\n//         .then(res => {\n//             log('debug', '>> then >>', res)()\n//             done = res\n//         })\n//         .catch(err => {\n//             console.error(`[uibuilder:loadModule] Could not load module ${url}`, err)\n//             done = null\n//         })\n\n//     //  eslint-disable-next-line no-empty\n//     while (!done) { } // eslint-disable-line no-unmodified-loop-condition\n\n//     return done\n// }\n\n/** Makes a null or non-object into an object\n * If not null, moves \"thing\" to {payload:thing}\n *\n * @param {*} thing Thing to check\n * @param {string} [property='payload'] property that \"thing\" is moved to if not null and not an object\n * @returns {!object} _\n */\nfunction makeMeAnObject(thing, property) {\n    if (!property) property = 'payload'\n    if (typeof property !== 'string') {\n        log('warn', 'uibuilderfe:makeMeAnObject', `WARNING: property parameter must be a string and not: ${typeof property}`)()\n        property = 'payload'\n    }\n    let out = {}\n    if ( thing !== null && thing.constructor.name === 'Object' ) {\n        out = thing\n    } else if (thing !== null) {\n        out[property] = thing\n    }\n    return out\n} // --- End of make me an object --- //\n\n/** Joins all arguments as a URL string\n * see http://stackoverflow.com/a/28592528/3016654\n * since v1.0.10, fixed potential double // issue\n * arguments {string} URL fragments\n * @returns {string} _\n */\nfunction urlJoin() {\n    const paths = Array.prototype.slice.call(arguments)\n    const url = '/' + paths.map(function (e) {\n        return e.replace(/^\\/|\\/$/g, '')\n    })\n        .filter(function (e) {\n            return e\n        })\n        .join('/')\n    return url.replace('//', '/')\n} // ---- End of urlJoin ---- //\n\n/** Convert JSON to Syntax Highlighted HTML\n * @param {object} json A JSON/JavaScript Object\n * @returns {html} Object reformatted as highlighted HTML\n */\nfunction syntaxHighlight(json) {\n    if (json === undefined) {\n        json = '<span class=\"undefined\">undefined</span>'\n    } else {\n        try {\n            json = JSON.stringify(json, undefined, 4)\n            // json = json.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;') // eslint-disable-line newline-per-chained-call\n            json = json.replace(/(\"(\\\\u[a-zA-Z0-9]{4}|\\\\[^u]|[^\\\\\"])*\"(\\s*:)?|\\b(true|false|null)\\b|-?\\d+(?:\\.\\d*)?(?:[eE][+-]?\\d+)?)/g, function (match) { // eslint-disable-line prefer-named-capture-group\n                let cls = 'number'\n                if ((/^\"/).test(match)) {\n                    if ((/:$/).test(match)) {\n                        cls = 'key'\n                    } else {\n                        cls = 'string'\n                    }\n                } else if ((/true|false/).test(match)) {\n                    cls = 'boolean'\n                } else if ((/null/).test(match)) {\n                    cls = 'null'\n                }\n                return `<span class=\"${cls}\">${match}</span>`\n            })\n        } catch (e) {\n            json = `Syntax Highlight ERROR: ${e.message}`\n        }\n    }\n    return json\n}\n\n/** msg._ui handling functions */\nconst _ui = new Ui(window, log, syntaxHighlight)\n\n//#endregion --- Module-level utility functions --- //\n\n/** Define and export the Uib class - note that an instance of the class is also exported in the wrap-up\n * @typicalname uibuilder\n */\nexport const Uib = class Uib {\n\n    //#region --- Static variables ---\n    static _meta = {\n        version: version,\n        type: 'module',\n        displayName: 'uibuilder',\n    }\n    //#endregion ---- ---- ---- ----\n\n    //#region private class vars\n\n    // How many times has the loaded instance connected to Socket.IO (detect if not a new load?)\n    connectedNum = 0\n    // event listener callbacks by property name\n    // #events = {}\n    // Socket.IO channel names\n    _ioChannels = { control: 'uiBuilderControl', client: 'uiBuilderClient', server: 'uiBuilder' }\n    /** setInterval holder for pings @type {function|undefined} */\n    #pingInterval\n    // onChange event callbacks\n    #propChangeCallbacks = {}\n    // onTopic event callbacks\n    #msgRecvdByTopicCallbacks = {}\n    // Is Vue available?\n    isVue = false\n    // What version? Set in startup if Vue is loaded. Won't always work\n    vueVersion = undefined\n    /** setInterval id holder for Socket.IO checkConnect\n     * @type {number|null}\n     */\n    #timerid = null\n    // Holds the reference ID for the internal msg change event handler so that it can be cancelled\n    #MsgHandler\n    // Placeholder for io.socket - can't make a # var until # fns allowed in all browsers\n    _socket\n    // Placeholder for an observer that watches the whole DOM for changes - can't make a # var until # fns allowed in all browsers\n    _htmlObserver\n    // Has showMsg been turned on?\n    #isShowMsg = false\n    // Has showStatus been turned on?\n    #isShowStatus = false\n    // If true, URL hash changes send msg back to node-red. Controlled by watchUrlHash()\n    #sendUrlHash = false\n    // Externally accessible command functions (NB: Case must match) - remember to update _uibCommand for new commands\n    #extCommands = [\n        'elementExists', 'get', 'getManagedVarList', 'getWatchedVars', 'htmlSend', 'include',\n        'navigate', 'scrollTo', 'set', 'showMsg', 'showStatus', 'uiGet', 'uiWatch', 'watchUrlHash',\n    ]\n\n    /** @type {{[key: string]: string}} Managed uibuilder variables */\n    #managedVars = {}\n\n    // What status variables to show via showStatus()\n    #showStatus = {\n        online: { 'var': 'online', 'label': 'Online?', 'description': 'Is the browser online?', },\n        ioConnected: { 'var': 'ioConnected', 'label': 'Socket.IO connected?', 'description': 'Is Socket.IO connected?', },\n        connectedNum: { 'var': 'connectedNum', 'label': '# reconnections', 'description': 'How many times has Socket.IO had to reconnect since last page load?', },\n\n        clientId: { 'var': 'clientId', 'label': 'Client ID', 'description': 'Static client unique id set in Node-RED. Only changes when browser is restarted.', },\n        tabId: { 'var': 'tabId', 'label': 'Browser tab ID', 'description': 'Static unique id for the browser\\'s current tab', },\n        cookies: { 'var': 'cookies', 'label': 'Cookies', 'description': 'Cookies set in Node-RED', },\n        httpNodeRoot: { 'var': 'httpNodeRoot', 'label': 'httpNodeRoot', 'description': 'From Node-RED\\' settings.js, affects URL\\'s. May be wrong for pages in sub-folders', },\n        pageName: { 'var': 'pageName', 'label': 'Page name', 'description': 'Actual name of this page', },\n\n        ioNamespace: { 'var': 'ioNamespace', 'label': 'SIO namespace', 'description': 'Socket.IO namespace - unique to each uibuilder node instance', },\n        // ioPath: { 'var': 'ioPath', 'label': 'SIO path', 'description': '', }, // no longer needed in the modern client\n        socketError: { 'var': 'socketError', 'label': 'Socket error', 'description': 'If the Socket.IO connection has failed, says why', },\n\n        msgsSent: { 'var': 'msgsSent', 'label': '# msgs sent', 'description': 'How many standard messages have been sent to Node-RED?', },\n        msgsReceived: { 'var': 'msgsReceived', 'label': '# msgs received', 'description': 'How many standard messages have been received from Node-RED?', },\n        msgsSentCtrl: { 'var': 'msgsSentCtrl', 'label': '# control msgs sent', 'description': 'How many control messages have been sent to Node-RED?', },\n        msgsCtrlReceived: { 'var': 'msgsCtrlReceived', 'label': '# control msgs received', 'description': 'How many control messages have been received from Node-RED?', },\n        originator: { 'var': 'originator', 'label': 'Node Originator', 'description': 'If the last msg from Node-RED was from a `uib-sender` node, this will be its node id so that messasges can be returned to it', },\n        topic: { 'var': 'topic', 'label': 'Default topic', 'description': 'Optional default topic to be included in outgoing standard messages', },\n\n        started: { 'var': 'started', 'label': 'Has uibuilder client started?', 'description': 'Whether `uibuilder.start()` ran successfully. This should self-run and should not need to be run manually', },\n        version: { 'var': 'version', 'label': 'uibuilder client version', 'description': 'The version of the loaded uibuilder client library', },\n        serverTimeOffset: { 'var': 'serverTimeOffset', 'label': 'Server time offset (Hrs)', 'description': 'The number of hours difference between the Node-red server and the client', },\n    }\n\n    // Track ui observers (see uiWatch)\n    #uiObservers = {}\n\n    //#endregion\n\n    //#region public class vars\n\n    // TODO Move to proper getters\n    //#region ---- Externally read-only (via .get method) ---- //\n    // version - moved to _meta\n    /** Client ID set by uibuilder on connect */\n    clientId = ''\n    /** The collection of cookies provided by uibuilder */\n    cookies = {}\n    /** Copy of last control msg object received from sever */\n    ctrlMsg = {}\n    /** Is Socket.IO client connected to the server? */\n    ioConnected = false\n    // Is the browser tab containing this page visible or not?\n    isVisible = false\n    // Remember the last page (re)load/navigation type: navigate, reload, back_forward, prerender\n    lastNavType = ''\n    /** Last std msg received from Node-RED */\n    msg = {}\n    /** number of messages sent to server since page load */\n    msgsSent = 0\n    /** number of messages received from server since page load */\n    msgsReceived = 0\n    /** number of control messages sent to server since page load */\n    msgsSentCtrl = 0\n    /** number of control messages received from server since page load */\n    msgsCtrlReceived = 0\n    /** Is the client online or offline? */\n    online = navigator.onLine\n    /** last control msg object sent via uibuilder.send() @since v2.0.0-dev3 */\n    sentCtrlMsg = {}\n    /** last std msg object sent via uibuilder.send() */\n    sentMsg = {}\n    /** placeholder to track time offset from server, see fn socket.on(ioChannels.server ...) */\n    serverTimeOffset = null\n    /** placeholder for a socket error message */\n    socketError = null\n    // tab identifier from session storage\n    tabId = ''\n    // Actual name of current page (set in constructor)\n    pageName = null\n    // Is the DOMPurify library loaded? Updated in start()\n    purify = false\n    // Is the Markdown-IT library loaded? Updated in start()\n    markdown = false\n    // Current URL hash. Initial set is done from start->watchHashChanges via a set to make it watched\n    urlHash = location.hash\n    //#endregion ---- ---- ---- ---- //\n\n    // TODO Move to proper getters/setters\n    //#region ---- Externally Writable (via .set method, read via .get method) ---- //\n    /** Default originator node id - empty string by default\n     * @type {string}\n     */\n    originator = ''\n    /** Default topic - used by send if set and no topic provided\n     * @type {(string|undefined)}\n     */\n    topic = undefined\n    //#endregion ---- ---- ---- ---- //\n\n    //#region ---- These are unlikely to be needed externally: ----\n    autoSendReady = true\n    httpNodeRoot = '' // Node-RED setting (via cookie)\n    ioNamespace = ''\n    ioPath = ''\n    retryFactor = 1.5       // starting delay factor for subsequent reconnect attempts\n    retryMs = 2000          // starting retry ms period for manual socket reconnections workaround\n    storePrefix = 'uib_'    // Prefix for all uib-related localStorage\n    started = false\n    // NOTE: These can only change when a client (re)connects\n    socketOptions = {\n        path: this.ioPath,\n        transports: ['polling', 'websocket'],\n        // Using callback so that they are updated automatically on (re)connect\n        // Only put things in here that will be valid for a websocket connected session\n        auth: (cb) => {\n            cb({ // eslint-disable-line n/no-callback-literal\n                clientVersion: version,\n                clientId: this.clientId,\n                pathName: window.location.pathname,\n                urlParams: Object.fromEntries(new URLSearchParams(location.search)),\n                pageName: this.pageName,\n                tabId: this.tabId,\n                lastNavType: this.lastNavType,\n                connectedNum: ++this.connectedNum,\n                // Used to calculate the diff between the server and client connection timestamps - reported if >1 minute\n                browserConnectTimestamp: (new Date()).toISOString(),\n            })\n        },\n        transportOptions: {\n            // Can only set headers when polling\n            polling: {\n                extraHeaders: {\n                    'x-clientid': `${Uib._meta.displayName}; ${Uib._meta.type}; ${Uib._meta.version}; ${this.clientId}`,\n                }\n            },\n        },\n    }\n    //#endregion -- not external --\n\n    //#endregion --- End of variables ---\n\n    //#region ------- Getters and Setters ------- //\n\n    // Change logging level dynamically (affects both console. and print.)\n    set logLevel(level) { logLevel = level; console.log('%c\u2757 info%c [logLevel]', `${LOG_STYLES.level} ${LOG_STYLES.info.css}`, `${LOG_STYLES.head} ${LOG_STYLES.info.txtCss}`, `Set to ${level} (${LOG_STYLES.names[level]})`) /* changeLogLevel(level)*/ }\n    get logLevel() { return logLevel }\n\n    get meta() { return Uib._meta }\n\n    /** Function to set uibuilder properties to a new value - works on any property except _* or #*\n     * Also triggers any event listeners.\n     * Example: this.set('msg', {topic:'uibuilder', payload:42});\n     * @param {string} prop Any uibuilder property who's name does not start with a _ or #\n     * @param {*} val The set value of the property or a string declaring that a protected property cannot be changed\n     * @param {boolean} [store] If true, the variable is also saved to the browser localStorage if possible\n     * @param {boolean} [autoload] If true & store is true, on load, uib will try to restore the value from the store automatically\n     * @returns {*} Input value\n     */\n    set(prop, val, store = false, autoload = false) {\n        // Check for excluded properties - we don't want people to set these\n        // if (this.#excludedSet.indexOf(prop) !== -1) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:set', `Cannot use set() on protected property \"${prop}\"`)()\n            return `Cannot use set() on protected property \"${prop}\"`\n        }\n\n        // We must add the var to the uibuilder object\n        this[prop] = val\n\n        // Keep track of all managed variables\n        this.#managedVars[prop] = prop\n\n        // If requested, save to store\n        if (store === true) this.setStore(prop, val, autoload)\n\n        log('trace', 'Uib:set', `prop set - prop: ${prop}, val: `, val, ` store: ${store}, autoload: ${autoload}`)()\n\n        // Trigger this prop's event callbacks (listeners which are set by this.onChange)\n        // this.emit(prop, val)\n\n        // trigger an event on the prop name, pass both the name and value to the event details\n        this._dispatchCustomEvent('uibuilder:propertyChanged', { 'prop': prop, 'value': val, 'store': store, 'autoload': autoload })\n\n        return val\n    }\n\n    /** Function to get the value of a uibuilder property\n     * Example: uibuilder.get('msg')\n     * @param {string} prop The name of the property to get as long as it does not start with a _ or #\n     * @returns {*|undefined} The current value of the property\n     */\n    get(prop) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:get', `Cannot use get() on protected property \"${prop}\"`)()\n            return\n        }\n        if (prop === 'version') return Uib._meta.version\n        if (prop === 'msgsCtrl') return this.msgsCtrlReceived\n        if (prop === 'reconnections') return this.connectedNum\n        if (this[prop] === undefined) {\n            log('warn', 'Uib:get', `get() - property \"${prop}\" is undefined`)()\n        }\n        return this[prop]\n    }\n\n    /** Write to localStorage if possible. console error output if can't write\n     * Also uses this.storePrefix\n     * @example\n     *   uibuilder.setStore('fred', 42)\n     *   console.log(uibuilder.getStore('fred'))\n     * @param {string} id localStorage var name to be used (prefixed with 'uib_')\n     * @param {*} value value to write to localstore\n     * @param {boolean} [autoload] If true, on load, uib will try to restore the value from the store\n     * @returns {boolean} True if succeeded else false\n     */\n    setStore(id, value, autoload = false) {\n        let autoVars = {}\n        if (autoload === true) {\n            try {\n                autoVars = this.getStore('_uibAutoloadVars') || {}\n            } catch (e) {}\n        }\n        if (typeof value === 'object') {\n            try {\n                value = JSON.stringify(value)\n            } catch (e) {\n                log('error', 'Uib:setStore', 'Cannot stringify object, not storing. ', e)()\n                return false\n            }\n        }\n        try {\n            localStorage.setItem(this.storePrefix + id, value)\n            if (autoload) {\n                autoVars[id] = id\n                try {\n                    localStorage.setItem(this.storePrefix + '_uibAutoloadVars', JSON.stringify(autoVars))\n                } catch (e) {\n                    log('error', 'Uib:setStore', 'Cannot save autoload list. ', e)()\n                }\n            }\n            this._dispatchCustomEvent('uibuilder:propertyStored', { 'prop': id, 'value': value, 'autoload': autoload })\n            return true\n        } catch (e) {\n            log('error', 'Uib:setStore', 'Cannot write to localStorage. ', e)()\n            return false\n        }\n    } // --- end of setStore --- //\n\n    /** Attempt to get and re-hydrate a key value from localStorage\n     * Note that all uib storage is automatically prefixed using this.storePrefix\n     * @param {*} id The key of the value to attempt to retrieve\n     * @returns {*|null|undefined} The re-hydrated value of the key or null if key not found, undefined on error\n     */\n    getStore(id) {\n        try {\n            // @ts-ignore\n            return JSON.parse(localStorage.getItem(this.storePrefix + id))\n        } catch (e) { }\n        try {\n            return localStorage.getItem(this.storePrefix + id)\n        } catch (e) {\n            return undefined\n        }\n    }\n\n    /** Remove a given id from the uib keys in localStorage\n     * @param {*} id The key to remove\n     */\n    removeStore(id) {\n        try {\n            localStorage.removeItem(this.storePrefix + id)\n        } catch (e) { }\n    }\n\n    /** Returns a list of uibuilder properties (variables) that can be watched with onChange\n     * @returns {{[key: string]: string}} List of uibuilder managed variables\n     */\n    getManagedVarList() {\n        return this.#managedVars\n    }\n\n    getWatchedVars() {\n        return Object.keys(this.#propChangeCallbacks)\n    }\n\n    //#endregion ------- -------- ------- //\n\n    //#region ------- Our own event handling system ---------- //\n\n    // TODO Add option to send event details back to Node-RED as uib ctrl msg\n    /** Standard fn to create a custom event with details & dispatch it\n     * @param {string} title The event name\n     * @param {*} details Any details to pass to event output\n     */\n    _dispatchCustomEvent(title, details) {\n        const event = new CustomEvent(title, { detail: details })\n        document.dispatchEvent(event)\n    }\n\n    // See the this.#propChangeCallbacks & msgRecvdByTopicCallbacks private vars\n\n    /** Register on-change event listeners for uibuilder tracked properties\n     * Make it possible to register a function that will be run when the property changes.\n     * Note that you can create listeners for non-existant properties\n     * @example: uibuilder.onChange('msg', (msg) => { console.log('uibuilder.msg changed! It is now: ', msg) })\n     *\n     * @param {string} prop The property of uibuilder that we want to monitor\n     * @param {Function} callback The function that will run when the property changes, parameter is the new value of the property after change\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelChange if you need to remove a listener\n     */\n    onChange(prop, callback) {\n        // Note: Property does not have to exist yet\n\n        // console.debug(`[Uib:onchange] pushing new callback (event listener) for property: ${prop}`)\n\n        // Create a new array or add to the array of callback functions for the property in the events object\n        // if (this.#events[prop]) {\n        //     this.#events[prop].push(callback)\n        // } else {\n        //     this.#events[prop] = [callback]\n        // }\n\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#propChangeCallbacks[prop]) this.#propChangeCallbacks[prop] = { _nextRef: 1 }\n        else this.#propChangeCallbacks[prop]._nextRef++\n\n        const nextCbRef = this.#propChangeCallbacks[prop]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const propChangeCallback = this.#propChangeCallbacks[prop][nextCbRef] = function propChangeCallback(e) {\n            // If the prop name matches the 1st arg in the onChange fn:\n            if (prop === e.detail.prop) {\n                const value = e.detail.value\n                // console.warn('[Uib:onChange:evt] uibuilder:propertyChanged. ', e.detail)\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(value, value)\n            }\n        }\n\n        document.addEventListener('uibuilder:propertyChanged', propChangeCallback)\n\n        return nextCbRef\n    } // ---- End of onChange() ---- //\n\n    cancelChange(prop, cbRef) {\n        document.removeEventListener('uibuilder:propertyChanged', this.#propChangeCallbacks[prop][cbRef])\n        delete this.#propChangeCallbacks[prop][cbRef]\n        // this.#propChangeCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Register a change callback for a specific msg.topic\n     * Similar to onChange but more convenient if needing to differentiate by msg.topic.\n     * @example: let otRef = uibuilder.onTopic('mytopic', function(){ console.log('Received a msg with msg.topic=`mytopic`. msg: ', this) })\n     * To cancel a change listener: uibuilder.cancelTopic('mytopic', otRef)\n     *\n     * @param {string} topic The msg.topic we want to listen for\n     * @param {Function} callback The function that will run when an appropriate msg is received. `this` inside the callback as well as the cb's single argument is the received msg.\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelTopic if you need to remove a listener\n     */\n    onTopic(topic, callback) {\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#msgRecvdByTopicCallbacks[topic]) this.#msgRecvdByTopicCallbacks[topic] = { _nextRef: 1 }\n        else this.#msgRecvdByTopicCallbacks[topic]._nextRef++\n\n        const nextCbRef = this.#msgRecvdByTopicCallbacks[topic]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const msgRecvdEvtCallback = this.#msgRecvdByTopicCallbacks[topic][nextCbRef] = function msgRecvdEvtCallback(e) {\n            const msg = e.detail\n            // console.log('[Uib:onTopic:evt] uibuilder:stdMsgReceived where topic matches. ', e.detail)\n            if (msg.topic === topic) {\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(msg, msg)\n            }\n        }\n\n        document.addEventListener('uibuilder:stdMsgReceived', msgRecvdEvtCallback)\n\n        return nextCbRef\n    }\n\n    cancelTopic(topic, cbRef) {\n        document.removeEventListener('uibuilder:stdMsgReceived', this.#msgRecvdByTopicCallbacks[topic][cbRef])\n        delete this.#msgRecvdByTopicCallbacks[topic][cbRef]\n        // this.#msgRecvdCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Trigger event listener for a given property\n     * Called when uibuilder.set is used\n     *\n     * @param {*} prop The property for which to run the callback functions\n     * arguments: Additional arguments contain the value to pass to the event callback (e.g. newValue)\n     */\n    // emit(prop) {\n    //     var evt = this.#events[prop]\n    //     if (!evt) {\n    //         return\n    //     }\n    //     var args = Array.prototype.slice.call(arguments, 1)\n    //     for (var i = 0; i < evt.length; i++) {\n    //         evt[i].apply(this, args)\n    //     }\n    //     log('trace', 'Uib:emit', `${evt.length} listeners run for prop ${prop} `)()\n    // }\n\n    /** Forcibly removes all event listeners from the events array\n     * Use if you need to re-initialise the environment\n     */\n    // clearEventListeners() {\n    //     this.#events = []\n    // } // ---- End of clearEventListeners() ---- //\n\n    /** Clear a single property event listeners\n     * @param {string} prop The property of uibuilder for which we want to clear the event listener\n     */\n    // clearListener(prop) {\n    //     if (this.#events[prop]) delete this.#events[prop]\n    // }\n\n    //#endregion ---------- End of event handling system ---------- //\n\n    //#region ------- General Utility Functions -------- //\n\n    /** Check supplied msg from server for a timestamp - if received, work out & store difference to browser time\n     * @param {object} receivedMsg A message object recieved from Node-RED\n     * @returns {void} Updates self.serverTimeOffset if different to previous value\n     */\n    _checkTimestamp(receivedMsg) {\n        if (Object.prototype.hasOwnProperty.call(receivedMsg, 'serverTimestamp')) {\n            const serverTimestamp = new Date(receivedMsg.serverTimestamp)\n            // @ts-ignore\n            const offset = Math.round(((new Date()) - serverTimestamp) / 3600000) // in ms /3.6m to get hours\n            if (offset !== this.serverTimeOffset) {\n                log('trace', `Uib:checkTimestamp:${this._ioChannels.server} (server)`, `Offset changed to: ${offset} from: ${this.serverTimeOffset}`)()\n                this.set('serverTimeOffset', offset)\n            }\n        }\n    }\n\n    /** Set the default originator. Set to '' to ignore. Used with uib-sender.\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    setOriginator(originator = '') {\n        this.set('originator', originator)\n    } // ---- End of setOriginator ---- //\n\n    /** HTTP Ping/Keep-alive - makes a call back to uibuilder's ExpressJS server and receives a 204 response\n     * Can be used to keep sessions alive.\n     * @example\n     *   uibuilder.setPing(2000) // repeat every 2 sec. Re-issue with ping(0) to turn off repeat.\n     *   uibuilder.onChange('ping', function(data) {\n     *      console.log('pinger', data)\n     *   })\n     * @param {number} ms Repeat interval in ms\n     */\n    setPing(ms = 0) {\n        const oReq = new XMLHttpRequest()\n        oReq.addEventListener('load', () => {\n            const headers = (oReq.getAllResponseHeaders()).split('\\r\\n')\n            const elapsedTime = Number(new Date()) - Number((oReq.responseURL.split('='))[1])\n            this.set('ping', {\n                success: !!((oReq.status === 201) || (oReq.status === 204)), // true if one of the listed codes else false\n                status: oReq.status,\n                headers: headers,\n                url: oReq.responseURL,\n                elapsedTime: elapsedTime,\n            })\n        })\n\n        if (this.#pingInterval) {\n            clearInterval(this.#pingInterval)\n            this.#pingInterval = undefined\n        }\n\n        oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n        oReq.send()\n\n        if (ms > 0) {\n            this.#pingInterval = setInterval(() => {\n                oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n                oReq.send()\n            }, ms)\n        }\n    } // ---- End of ping ---- //\n\n    log() {\n        log(...arguments)()\n    }\n\n    /** Convert JSON to Syntax Highlighted HTML\n     * @param {object} json A JSON/JavaScript Object\n     * @returns {html} Object reformatted as highlighted HTML\n     */\n    syntaxHighlight(json) {\n        return syntaxHighlight(json)\n    } // --- End of syntaxHighlight --- //\n\n    /** Copies a uibuilder variable to the browser clipboard\n     * @param {string} varToCopy The name of the uibuilder variable to copy to the clipboard\n     */\n    copyToClipboard(varToCopy) {\n        let data = ''\n        try {\n            console.log(this.get(varToCopy), JSON.stringify(this.get(varToCopy)))\n            data = JSON.stringify(this.get(varToCopy))\n        } catch (e) {\n            log('error', 'copyToClipboard', `Could not copy \"${varToCopy}\" to clipboard.`, e.message)()\n        }\n        navigator.clipboard.writeText(data)\n    } // --- End of copyToClipboard --- //\n\n    /** DEPRECATED FOR NOW - wasn't working properly.\n     * Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.\n     * Requires IntersectionObserver (available to all mainstream browsers from early 2019)\n     * Automatically sends a msg back to Node-RED.\n     * Requires the element to already exist.\n     * @returns {false}\n     */\n    elementIsVisible() {\n        const info = 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'\n        log('error', 'uib:elementIsVisible', info)()\n        this.send({payload: 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'})\n        return false\n    } // --- End of elementIsVisible --- //\n\n    /** Does the chosen CSS Selector currently exist?\n     * Automatically sends a msg back to Node-RED unless turned off.\n     * @param {string} cssSelector Required. CSS Selector to examine for visibility\n     * @param {boolean} [msg] Optional, default=true. If true also sends a message back to Node-RED\n     * @returns {boolean} True if the element exists\n     */\n    elementExists(cssSelector, msg = true) {\n        const el = document.querySelector(cssSelector)\n\n        let exists = false\n        if (el !== null) exists = true\n\n        if (msg === true) {\n            this.send({\n                payload: exists,\n                info: `Element \"${cssSelector}\" ${exists ? 'exists' : 'does not exist'}`\n            })\n        }\n\n        return exists\n    } // --- End of elementExists --- //\n\n    /** Only keep the URL Hash & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return '#' + url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Set up an event listener to watch for hash changes\n     * and set the watchable urlHash variable\n     */\n    _watchHashChanges() {\n        this.set('urlHash', location.hash)\n        window.addEventListener('hashchange', (event) => {\n            this.set('urlHash', location.hash)\n            if (this.#sendUrlHash === true) {\n                this.send({ topic: 'hashChange', payload: location.hash, newHash: this.keepHashFromUrl(event.newURL), oldHash: this.keepHashFromUrl(event.oldURL) })\n            }\n        })\n    }\n\n    /** Returns true/false or a default value for truthy/falsy and other values\n     * @param {string|number|boolean|*} val The value to test\n     * @param {any} deflt Default value to use if the value is not truthy/falsy\n     * @returns {boolean|any} The truth! Or the default\n     */\n    truthy(val, deflt) {\n        let ret\n        if (['on', 'On', 'ON', 'true', 'True', 'TRUE', '1', true, 1].includes(val)) ret = true\n        else if (['off', 'Off', 'OFF', 'false', 'False', 'FALSE', '0', false, 0].includes(val)) ret = false\n        else ret = deflt\n        return ret\n    }\n\n    /** Turn on/off/toggle sending URL hash changes back to Node-RED\n     * @param {string|number|boolean|undefined} [toggle] Optional on/off/etc\n     * @returns {boolean} True if we will send a msg to Node-RED on a hash change\n     */\n    watchUrlHash(toggle) {\n        this.#sendUrlHash = this.truthy(toggle, this.#sendUrlHash !== true)\n        return this.#sendUrlHash\n    }\n\n    /** Navigate to a new page or a new route (hash)\n     * @param {string} url URL to navigate to. Can be absolute or relative (to current page) or just a hash for a route change\n     * @returns {Location} The new window.location string\n     */\n    navigate(url) {\n        if (url) window.location.href = url\n        return window.location\n    }\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- UI handlers --------- //\n\n    //#region -- Direct to _ui --\n    // ! NOTE: Direct assignments change the target `this` to here. Use with caution\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {HTMLElement|null} Selected HTML element or null\n     */\n    $ = _ui.$\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {string} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {HTMLElement[]} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$ = _ui.$$\n\n    /** Reference to the full ui library */\n    $ui = _ui\n\n    /** Add 1 or several class names to an element\n     * @param {string|string[]} classNames Single or array of classnames\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    addClass = _ui.addClass\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        return _ui.convertMarkdown\n    }\n\n    /** ASYNC: Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     */\n    async include(url, uiOptions) {\n        await _ui.include(url, uiOptions)\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        _ui.loadScriptSrc(url)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        _ui.loadStyleSrc(url)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        _ui.loadScriptTxt(textFn)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        _ui.loadStyleTxt(textFn)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        _ui.loadui(url)\n    }\n\n    /** Remove All, 1 or more class names from an element\n     * @param {undefined|null|\"\"|string|string[]} classNames Single or array of classnames. If undefined, \"\" or null, remove all classes\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    removeClass = _ui.removeClass\n\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        _ui.replaceSlot(el, component)\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        _ui.replaceSlotMarkdown(el, component)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        return _ui.sanitiseHTML(html)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) {\n        _ui.showDialog(type, ui, msg)\n    }\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        _ui.ui(json)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        return _ui.uiGet(cssSelector, propName)\n    }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} component Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, component) {\n        _ui.uiEnhanceElement(el, component)\n    }\n\n    //#endregion -- direct to _ui --\n\n    /** * Show/hide a display card on the end of the visible HTML that will dynamically display the last incoming msg from Node-RED\n     * The card has the id `uib_last_msg`. Updates are done from a listener set up in the start function.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showMsg(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowMsg\n        this.#isShowMsg = showHide\n        let slot = 'Waiting for a message from Node-RED'\n\n        if (this.msg && Object.keys(this.msg).length > 0) {\n            slot = this.syntaxHighlight(this.msg)\n        }\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_last_msg_wrap',\n                ],\n            })\n        } else {\n            _ui._uiReplace({\n                components: [\n                    {\n                        type: 'div',\n                        id: 'uib_last_msg_wrap',\n                        parent: parent,\n                        attributes: {\n                            title: 'Last message from Node-RED',\n                        },\n                        components: [\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.copyToClipboard(\"msg\")',\n                                    class: 'compact',\n                                    style: 'right:3em;',\n                                },\n                                slot: '\uD83D\uDCCB',\n                            },\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.showMsg()',\n                                    class: 'compact',\n                                    style: 'right:.5em;',\n                                },\n                                slot: '\u26D4',\n                            },\n                            {\n                                type: 'pre',\n                                id: 'uib_last_msg',\n                                // parent: 'uib_last_msg_wrap',\n                                attributes: {\n                                    class: 'syntax-highlight',\n                                },\n                                slot: slot,\n                            },\n                        ],\n                    },\n                ],\n            })\n        }\n\n        return showHide\n    }\n\n    /** Show a browser notification if possible.\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * @example uibuilder.notify( 'My simple message to the user' )\n     * @example uibuilder.notify( {topic: 'My Title', payload: 'My simple message to the user'} )\n     * @example uibuilder.notify( {title: 'My Title', body: 'My simple message to the user'} )\n     * @example // If config.return = true, a promise is returned.\n     * // The resolved promise is only returned if the notification is clicked by the user.\n     * // Can be used to send the response back to Node-RED\n     * uibuilder.notify(notifyConfig).then( res => uibuilder.eventSend(res) )\n     * @ref https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config data or simple message string\n     * @returns {Promise<Event>|null} A promise that resolves to the click event or null\n     */\n    notify(config) {\n        if (config.return) return _ui.notification(config)\n\n        _ui.notification(config)\n            .then( res => { // eslint-disable-line promise/always-return\n                log('info', 'Uib:notification', 'Notification completed event', res)()\n                // if (config.return) return res\n            })\n            .catch( err => {\n                log('error', 'Uib:notification', 'Notification error event', err)()\n            })\n        return null\n    }\n\n    /** Scroll the page\n     * https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollIntoView\n     * @param {string} [cssSelector] Optional. If not set, scrolls to top of page.\n     * @param {{block:(string|undefined),inline:(string|undefined),behavior:(string|undefined)}} [opts] Optional. DOM scrollIntoView options\n     * @returns {boolean} True if element was found, false otherwise\n     */\n    scrollTo(cssSelector, opts) {\n        // @ts-ignore\n        if (!opts) opts = {}\n        if (!cssSelector || cssSelector === 'top'  || cssSelector === 'start') cssSelector = 'body'\n        else if (cssSelector === 'bottom' || cssSelector === 'end') {\n            cssSelector = 'body'\n            opts.block = 'end'\n        }\n        const el = this.$(cssSelector)\n        if (el) {\n            el.scrollIntoView(opts)\n            return true\n        }\n        return false\n    }\n\n    /** Show/hide a display card on the end of the visible HTML that will dynamically display the current status of the uibuilder client\n     * The card has the id `uib_status`.\n     * The display is updated by an event listener created in the class constructor.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showStatus(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowStatus\n        this.#isShowStatus = showHide\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_status',\n                ],\n            })\n            return showHide\n        }\n\n        const root = {\n            components: [\n                {\n                    type: 'div',\n                    id: 'uib_status',\n                    parent: parent,\n                    attributes: {\n                        title: 'Current status of the uibuilder client',\n                        class: 'text-smaller',\n                    },\n                    components: [\n                        {\n                            'type': 'table',\n                            'components': [\n                                {\n                                    'type': 'tbody',\n                                    'components': []\n                                }\n                            ]\n                        }\n                    ]\n                }\n            ]\n        }\n        const details = root.components[0].components[0].components[0].components\n\n        Object.values(this.#showStatus).forEach( entry => {\n            details.push({\n                'type': 'tr',\n                'attributes': {\n                    title: entry.description,\n                },\n                'components': [\n                    {\n                        'type': 'th',\n                        'slot': entry.label,\n                    },\n                    {\n                        'type': 'td',\n                        'attributes': {\n                            'data-varType': entry.var,\n                        },\n                        'slot': entry.var === 'version' ? Uib._meta.version : JSON.stringify(this[entry.var]),\n                    }\n                ],\n            })\n        })\n\n        _ui._uiReplace(root)\n\n        return showHide\n    }\n\n    /** Use the Mutation Observer browser API to watch for changes to a single element on the page.\n     * OMG! It is sooo hard to turn the data into something that successfully serialises so it can be sent back to Node-RED!\n     * NB: Each cssSelector creates a unique watcher. Sending the same selector overwrites the previous one.\n     * @param {string} cssSelector A CSS Selector that selects the element to watch for changes\n     * @param {boolean|\"toggle\"} [startStop] true=start watching the DOM, false=stop. Default='toggle'\n     * @param {boolean} [send] true=Send changes to Node-RED, false=Don't send. Default=true\n     * @param {boolean} [showLog] true=Output changes to log, false=stop. Default=true. Log level is 2 (Info)\n     * @returns {boolean} True if the watch is on, false otherwise\n     */\n    uiWatch(cssSelector, startStop = 'toggle', send = true, showLog = true) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.querySelector(cssSelector)\n        if (!targetNode) {\n            log('warn', 'uibuilder.module.js:uiWatch', `CSS Selector '${cssSelector}' not found.`)()\n            return false\n        }\n\n        if (startStop === 'toggle' || startStop === undefined || startStop === null) {\n            if (this.#uiObservers[cssSelector]) startStop = false\n            else startStop = true\n        }\n\n        // Need a ref to the Uib this\n        const that = this\n\n        if (startStop === true) {\n            // Create an observer instance\n            this.#uiObservers[cssSelector] = new MutationObserver( function( mutationList /* , observer */ ) {\n                const out = []\n\n                mutationList.forEach( mu => {\n                    // console.log({ mu })\n                    const oMu = {\n                        type: mu.type,\n                        oldValue: mu.oldValue !== null ? mu.oldValue : undefined,\n                    }\n\n                    if (mu.addedNodes.length > 0) {\n                        oMu.addedNodes = []\n                        mu.addedNodes.forEach( (an, i) => {\n                            oMu.addedNodes.push(_ui.nodeGet(mu.addedNodes[i]))\n                        })\n                    }\n\n                    if (mu.removedNodes.length > 0) {\n                        oMu.removedNodes = []\n                        mu.removedNodes.forEach( (an, i) => {\n                            oMu.removedNodes.push(_ui.nodeGet(mu.removedNodes[i]))\n                        })\n                    }\n\n                    if ( mu.type === 'attributes' ) {\n                        oMu.attributeName = mu.attributeName\n                        // @ts-ignore\n                        oMu.newValue = mu.target.attributes[mu.attributeName].value\n                    }\n\n                    out.push(oMu)\n                })\n\n                // Custom event\n                that._dispatchCustomEvent('uibuilder:domChange', out)\n                // Send a msg back to node-red\n                if (send === true) {\n                    that.send({\n                        _ui: {\n                            cssSelector: cssSelector,\n                            uiChanges: out\n                        },\n                        topic: that.topic || `DOM Changes for '${cssSelector}'`,\n                    })\n                }\n                // Log to info\n                if (showLog === true) {\n                    log('info', 'uibuilder.module.js:uiWatch', `DOM Changes for '${cssSelector}'`, { uiChanges: out }, { mutationList })()\n                }\n            } )\n\n            // Start observing the target node for configured mutations\n            this.#uiObservers[cssSelector].observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:uiWatch', `Started Watching DOM changes for '${cssSelector}'`)()\n        } else {\n            this.#uiObservers[cssSelector].disconnect()\n            delete this.#uiObservers[cssSelector]\n            log('trace', 'uibuilder.module.js:uiWatch', `Stopped Watching DOM changes for '${cssSelector}'`)()\n        }\n\n        return startStop\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- HTML cache and DOM watch --------- //\n\n    /** Clear the saved DOM from localStorage */\n    clearHtmlCache() {\n        this.removeStore('htmlCache')\n        log('trace', 'uibuilder.module.js:clearHtmlCache', 'HTML cache cleared')()\n    }\n\n    /** Restore the complete DOM (the whole web page) from browser localStorage if available */\n    restoreHtmlFromCache() {\n        // Is the html cached? If so, restore it\n        const htmlCache = this.getStore('htmlCache')\n        if (htmlCache) {\n            const targetNode = document.getElementsByTagName('html')[0]\n            // Restore the entire HTML\n            targetNode.innerHTML = htmlCache\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'Restored HTML from cache')()\n        } else {\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'No cache to restore')()\n        }\n    }\n\n    /** Save the current DOM state to browser localStorage.\n     * localStorage is persistent and so can be recovered even after a browser restart.\n     */\n    saveHtmlCache() {\n        // Save the updated entire HTML in localStorage\n        this.setStore('htmlCache', document.documentElement.innerHTML)\n    }\n\n    /** Use the Mutation Observer browser API to watch for and save changes to the HTML\n     * Once the observer is created, it will be reused.\n     * Sending true or undefined will turn on the observer, false turns it off.\n     * saveHtmlCache is called whenever anything changes in the dom. This allows\n     * users to call restoreHtmlFromCache() on page load if desired to completely reload\n     * to the last saved state.\n     * @param {boolean} startStop true=start watching the DOM, false=stop\n     */\n    watchDom(startStop) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.documentElement\n\n        // Need a ref to the Uib this\n        const that = this\n\n        // Create an observer instance\n        if (!this._htmlObserver) {\n            this._htmlObserver = new MutationObserver( function(/* mutationList, observer */) {\n                // We don't need to know the details - so kill off any outstanding mutation records\n                this.takeRecords()\n                // Save the updated entire HTML in localStorage\n                that.saveHtmlCache()\n            } )\n        }\n\n        if (startStop === true || startStop === undefined) {\n            // Start observing the target node for configured mutations\n            this._htmlObserver.observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:watchDom', 'Started Watching and saving DOM changes')()\n        } else {\n            this._htmlObserver.disconnect()\n            log('trace', 'uibuilder.module.js:watchDom', 'Stopped Watching and saving DOM changes')()\n        }\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- Message Handling (To/From Node-RED) -------- //\n\n    /** Handles original control msgs (not to be confused with \"new\" msg._uib controls)\n     * @param {*} receivedCtrlMsg The msg received on the socket.io control channel\n     */\n    _ctrlMsgFromServer(receivedCtrlMsg) {\n\n        // Make sure that msg is an object & not null\n        if (receivedCtrlMsg === null) {\n            receivedCtrlMsg = {}\n        } else if (typeof receivedCtrlMsg !== 'object') {\n            const msg = {}\n            msg['uibuilderCtrl:' + this._ioChannels.control] = receivedCtrlMsg\n            receivedCtrlMsg = msg\n        }\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedCtrlMsg)\n\n        this.set('ctrlMsg', receivedCtrlMsg)\n        this.set('msgsCtrlReceived', ++this.msgsCtrlReceived)\n\n        log('trace', 'Uib:ioSetup:_ctrlMsgFromServer', `Channel '${this._ioChannels.control}'. Received control msg #${this.msgsCtrlReceived}`, receivedCtrlMsg)()\n\n        /** Process control msg types */\n        switch (receivedCtrlMsg.uibuilderCtrl) {\n            // Node-RED is shutting down\n            case 'shutdown': {\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, '\u274C Received \"shutdown\" from server')()\n                this.set('serverShutdown', undefined)\n                break\n            }\n\n            /** We are connected to the server - 1st msg from server */\n            case 'client connect': {\n                log('trace', `Uib:ioSetup:${this._ioChannels.control}`, 'Received \"client connect\" from server')()\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, `\u2705 Server connected. Version: ${receivedCtrlMsg.version}\\nServer time: ${receivedCtrlMsg.serverTimestamp}, Sever time offset: ${this.serverTimeOffset} hours`)()\n\n                if ( !Uib._meta.version.startsWith(receivedCtrlMsg.version.split('-')[0]) ) {\n                    log('warn', `Uib:ioSetup:${this._ioChannels.control}`, `Server version (${receivedCtrlMsg.version}) not the same as the client version (${Uib._meta.version})`)()\n                }\n\n                if (this.autoSendReady === true) { // eslint-disable-line no-lonely-if\n                    log('trace', `Uib:ioSetup:${this._ioChannels.control}/client connect`, 'Auto-sending ready-for-content/replay msg to server')\n                    // @since 0.4.8c Add cacheControl property for use with node-red-contrib-infocache\n                    // @since 6.1.0 Don't bother, we use the \"client connect\" msg\n                    // this._send({\n                    //     'uibuilderCtrl': 'ready for content',\n                    //     'cacheControl': 'REPLAY',\n                    // }, this._ioChannels.control)\n                }\n\n                break\n            }\n\n            default: {\n                log('trace', `uibuilderfe:ioSetup:${this._ioChannels.control}`, `Received ${receivedCtrlMsg.uibuilderCtrl} from server`)\n                // Anything else to do for other control msgs?\n            }\n        } // ---- End of process control msg types ---- //\n    } // -- End of websocket receive CONTROL msg from Node-RED -- //\n\n    /** Do we want to process something? Check pageName, clientId, tabId. Defaults to yes.\n     * @param {*} obj Either a msg._ui or msg._uib object to check\n     * @returns {boolean} True if we should process the inbound _ui/_uib msg, false if not.\n     */\n    _forThis(obj) {\n        let r = true\n\n        // Is this msg for this pageName?\n        if (obj.pageName && obj.pageName !== this.pageName) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this page')()\n            r = false\n        }\n\n        // Is this msg for this clientId?\n        if (obj.clientId && obj.clientId !== this.clientId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this clientId')()\n            r = false\n        }\n\n        // Is this msg for this tabId?\n        if (obj.tabId && obj.tabId !== this.tabId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this tabId')()\n            r = false\n        }\n\n        return r\n    }\n\n    // Handle received messages - Process some msgs internally, emit specific events on document that make it easy for coders to use\n    _msgRcvdEvents(msg) {\n        // Message received\n        this._dispatchCustomEvent('uibuilder:stdMsgReceived', msg)\n\n        // Topic\n        if ( msg.topic ) this._dispatchCustomEvent(`uibuilder:msg:topic:${msg.topic}`, msg)\n\n        // Handle msg._uib special requests\n        if (msg._uib) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._uib)) return\n\n            /** Process a client reload request from Node-RED - as the page is reloaded, everything else is ignored\n             * Note that msg._ui.reload is also actioned via the _ui processing below */\n            if (msg._uib.reload === true) {\n                log('trace', 'Uib:_msgRcvdEvents:_uib:reload', 'reloading')()\n                location.reload()\n                return\n            }\n\n            // Process msg._uib.command messages - allows Node-RED to run uibuilder FE functions\n            if (msg._uib.command) {\n                this._uibCommand(msg)\n                return\n            }\n\n            // Better to request via msg._ui - these are for backwards compatibility\n            if ( msg._uib.componentRef === 'globalNotification' ) {\n                _ui.showDialog('notify', msg._uib.options, msg)\n            }\n            if ( msg._uib.componentRef === 'globalAlert' ) {\n                _ui.showDialog('alert', msg._uib.options, msg)\n            }\n        }\n\n        // Handle msg._ui requests\n        if ( msg._ui ) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._ui)) return\n\n            log('trace', 'Uib:_msgRcvdEvents:_ui', 'Calling _uiManager')()\n            this._dispatchCustomEvent('uibuilder:msg:_ui', msg)\n            _ui._uiManager(msg)\n        }\n    } // --- end of _msgRcvdEvents ---\n\n    /** Internal send fn. Send a standard or control msg back to Node-RED via Socket.IO\n     * NR will generally expect the msg to contain a payload topic\n     * @param {object} msgToSend The msg object to send.\n     * @param {string} [channel=uiBuilderClient] The Socket.IO channel to use, must be in self.ioChannels or it will be ignored\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    _send(msgToSend, channel, originator = '') {\n        if (channel === null || channel === undefined) channel = this._ioChannels.client\n\n        // Make sure msgToSend is an object\n        if (channel === this._ioChannels.client) {\n            msgToSend = makeMeAnObject(msgToSend, 'payload')\n        } else if (channel === this._ioChannels.control) {\n            msgToSend = makeMeAnObject(msgToSend, 'uibuilderCtrl')\n            if (!Object.prototype.hasOwnProperty.call(msgToSend, 'uibuilderCtrl')) {\n                msgToSend.uibuilderCtrl = 'manual send'\n            }\n            // help remember where this came from as ctrl msgs can come from server or client\n            msgToSend.from = 'client'\n        }\n\n        /** since 2020-01-02 Added _socketId which should be the same as the _socketId on the server */\n        msgToSend._socketId = this._socket.id\n\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n\n        // Add the originator metadata if required\n        if (originator === '' && this.originator !== '') originator = this.originator\n        if (originator !== '') Object.assign(msgToSend, { '_uib': { 'originator': originator } })\n\n        // If the msg does not have a topic - see if we want to add one\n        if ( !Object.prototype.hasOwnProperty.call(msgToSend, 'topic') ) {\n            // From the default (`uibuilder.set('topic', 'some topic')`)\n            if (this.topic !== undefined && this.topic !== '') msgToSend.topic = this.topic\n            else {\n                // Did the last inbound msg have a topic?\n                if ( Object.prototype.hasOwnProperty.call(this, 'msg') && Object.prototype.hasOwnProperty.call(this.msg, 'topic') ) {\n                    msgToSend.topic = this.msg.topic\n                }\n            }\n        }\n\n        // If a standard send & _ui property exists, make sure to add _ui.from = 'client'\n        if (msgToSend._ui) msgToSend._ui.from = 'client'\n\n        // Track how many messages have been sent & last msg sent\n        let numMsgs\n        if (channel === this._ioChannels.client) {\n            this.set('sentMsg', msgToSend)\n            numMsgs = this.set('msgsSent', ++this.msgsSent)\n        } else if (channel === this._ioChannels.control) {\n            this.set('sentCtrlMsg', msgToSend)\n            numMsgs = this.set('msgsSentCtrl', ++this.msgsSentCtrl)\n        }\n        log('trace', 'Uib:_send', ` Channel '${channel}'. Sending msg #${numMsgs}`, msgToSend)()\n\n        this._socket.emit(channel, msgToSend)\n    } // --- End of Send Msg Fn --- //\n\n    /** Callback handler for messages from Node-RED\n     * NOTE: `this` is the class here rather the `socket` as would be normal since we bind the correct `this` in the call.\n     *       Use this._socket if needing reference to the socket.\n     * @callback ioSetupFromServer Called from ioSetup/this._socket.on(this.#ioChannels.server, this.stdMsgFromServer.bind(this))\n     * @param {object} receivedMsg The msg object from Node-RED\n     * @this Uib\n     */\n    _stdMsgFromServer(receivedMsg) {\n\n        // Make sure that msg is an object & not null\n        receivedMsg = makeMeAnObject(receivedMsg, 'payload')\n\n        // Don't process if the inbound msg is not for us\n        if (receivedMsg._uib && !this._forThis(receivedMsg._uib)) return\n        if (receivedMsg._ui && !this._forThis(receivedMsg._ui)) return\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedMsg)\n\n        // Track how many messages have been received\n        this.set('msgsReceived', ++this.msgsReceived)\n\n        // Emit specific document events on msg receipt that make it easy for coders to use\n        this._msgRcvdEvents(receivedMsg)\n\n        if ( !('_ui' in receivedMsg && !('payload' in receivedMsg)) ) {\n            // Save the msg for further processing\n            this.set('msg', receivedMsg)\n        }\n\n        log('info', 'Uib:ioSetup:stdMsgFromServer', `Channel '${this._ioChannels.server}'. Received msg #${this.msgsReceived}.`, receivedMsg)()\n\n        // ! NOTE: Don't try to handle specialist messages here. See _msgRcvdEvents.\n    } // -- End of websocket receive DATA msg from Node-RED -- //\n\n    /** Process msg._uib.command - Remember to update #extCommands with new allowed commands\n     * @param {object} msg Msg from Node-RED containing a msg._uib object\n     */\n    _uibCommand(msg) {\n        if (!msg._uib || !msg._uib.command) {\n            log('error', 'uibuilder:_uibCommand', 'Invalid command message received', { msg })()\n            msg.payload = msg.error = 'Invalid command message received'\n            this.send(msg)\n            return\n        }\n        const cmd = msg._uib.command\n        // Disallowed command request outputs error and ignores the msg (NB: Case must match)\n        if (!this.#extCommands.includes(cmd.trim())) {\n            log('error', 'Uib:_uibCommand', `Command '${cmd} is not allowed to be called externally`)()\n            return\n        }\n        const prop = msg._uib.prop\n        const value = msg._uib.value\n        const quiet = msg._uib.quiet ?? false\n        let response, info\n\n        // Don't forget to update `#extCommands`, `docs/client-docs/control-from-node-red.md` & `functions.md`\n        switch (cmd) {\n            case 'elementIsVisible': {\n                response = this.elementIsVisible(prop)\n                // info = `Element \"${prop}\" ${response ? 'is visible' : 'is not visible'}`\n                break\n            }\n\n            case 'elementExists': {\n                response = this.elementExists(prop, false)\n                info = `Element \"${prop}\" ${response ? 'exists' : 'does not exist'}`\n                break\n            }\n\n            case 'get': {\n                response = this.get(prop)\n                break\n            }\n\n            case 'getManagedVarList': {\n                if (prop === 'full') response = this.getManagedVarList()\n                else response = Object.values(this.getManagedVarList())\n                break\n            }\n\n            case 'getWatchedVars': {\n                if (prop === 'full') response = this.getWatchedVars()\n                else response = Object.values(this.getWatchedVars())\n                break\n            }\n\n            case 'htmlSend': {\n                response = this.htmlSend('', false)\n                break\n            }\n\n            case 'include': {\n                // include is async\n                response = _ui.include(prop, value)\n                break\n            }\n\n            case 'navigate': {\n                let newUrl\n                if (prop) newUrl = prop\n                else if (value) newUrl = value\n                response = this.navigate(newUrl)\n                break\n            }\n\n            case 'scrollTo': {\n                response = this.scrollTo(prop, value)\n                break\n            }\n\n            case 'set': {\n                let store = false\n                let autoload = false\n                if (msg._uib.options && msg._uib.options.store) {\n                    if (msg._uib.options.store === true) store = true\n                    if (msg._uib.options.autoload === true) autoload = true\n                }\n                response = this.set(prop, value, store, autoload)\n                break\n            }\n\n            case 'showMsg': {\n                response = this.showMsg(value, prop)\n                break\n            }\n\n            case 'showStatus': {\n                response = this.showStatus(value, prop)\n                break\n            }\n\n            case 'uiGet': {\n                response = _ui.uiGet(prop, value)\n                break\n            }\n\n            case 'uiWatch': {\n                response = this.uiWatch(prop)\n                break\n            }\n\n            case 'watchUrlHash': {\n                response = this.watchUrlHash(prop)\n                break\n            }\n\n            default: {\n                log('warning', 'Uib:_uibCommand', `Command '${cmd}' not yet implemented`)()\n                break\n            }\n        }\n\n        if (quiet !== true) {\n            if (response === undefined) {\n                response = `'${prop}' is undefined`\n            }\n            if (Object(response).constructor === Promise) {\n                // response = `'${cmd} ${prop}' submitted. Cmd is async, no response available`\n                response\n                    .then( (/** @type {any} */ data) => {\n                        msg.payload = msg._uib.response = data\n                        msg.info = msg._uib.info = info\n                        if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                        this.send(msg)\n                        return true\n                    })\n                    .catch( err => {\n                        log(0, 'Uib:_uibCommand', 'Error: ', err)()\n                    })\n            } else {\n                msg.payload = msg._uib.response = response\n                msg.info = msg._uib.info = info\n                if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                this.send(msg)\n            }\n        }\n    } // --- end of _uibCommand ---\n\n    /** Send log text to uibuilder's beacon endpoint (works even if socket.io not connected)\n     * @param {string} txtToSend Text string to send\n     * @param {string|undefined} logLevel Log level to use. If not supplied, will default to debug\n     */\n    beaconLog(txtToSend, logLevel) {\n        if (!logLevel) logLevel = 'debug'\n        navigator.sendBeacon('./_clientLog', `${logLevel}::${txtToSend}`)\n    }\n\n    /** Easily send the entire DOM/HTML msg back to Node-RED\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     * @param {boolean} [send] If true (default) directly send response to Node-RED. Is false when calling from Node-RED as a command.\n     * @returns {string} The HTML as a string\n     */\n    htmlSend(originator = '', send = true) {\n        const out = `<!doctype html>\\n${document.documentElement.outerHTML}`\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            payload: out,\n            length: out.length,\n            topic: this.topic,\n        }\n\n        log('trace', 'Uib:htmlSend', 'Sending full HTML to Node-RED', msg)()\n\n        if (send === true) this._send(msg, this._ioChannels.client, originator)\n        return out\n    }\n\n    /** Send log info back to Node-RED over uibuilder's websocket control output (Port #2)\n     * @param {...*} arguments All arguments passed to the function are added to the msg.payload\n     */\n    logToServer() {\n        this.sendCtrl({\n            uibuilderCtrl: 'client log message',\n            payload: arguments,\n            // \"version\":\"6.1.0-iife.min\",\n            _socketId: this._socket.id,\n            // \"ip\":\"::1\",\n            clientId: this.clientId,\n            tabId: this.tabId,\n            // \"url\":\"esp-test\",\n            pageName: this.pageName,\n            connections: this.connectedNum,\n            lastNavType: this.lastNavType,\n        })\n    }\n\n    /** Easily send a msg back to Node-RED on a DOM event\n     * @example In plain HTML/JavaScript\n     *    `<button id=\"button1\" name=\"button 1\" data-fred=\"jim\"></button>`\n     *    $('#button1').onclick = (evt) => {\n     *      uibuilder.eventSend(evt)\n     *    }\n     * @example\n     * In VueJS: `<b-button id=\"myButton1\" @click=\"doEvent\" data-something=\"hello\"></b-button>`\n     * In VueJS methods: `doEvent: uibuilder.eventSend,`\n     *\n     * All `data-` attributes will be passed back to Node-RED,\n     *    use them instead of arguments in the click function.\n     *    All target._ui custom properties are also passed back to Node-RED.\n     *\n     * @param {MouseEvent|any} domevent DOM Event object\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    eventSend(domevent, originator = '') { // eslint-disable-line sonarjs/cognitive-complexity\n        // @ts-ignore Handle case where vue messes up `this`\n        if ( this.$attrs ) {\n            log('error', 'Uib:eventSend', '`this` has been usurped by VueJS. Make sure that you wrap the call in a function: `doEvent: function (event) { uibuilder.eventSend(event) },`' )()\n            return\n        }\n        if (!domevent && !event) {\n            log('warn', 'Uib:eventSend', 'Neither the domevent nor the hidden event properties are set. You probably called this function directly rather than applying to an on click event.' )()\n            return\n        }\n        // Handle no argument, e.g. <button onClick=\"uibuilder.eventSend()\"> - event is a hidden variable when fn used in addEventListener\n        if (!domevent || !domevent.constructor) domevent = event\n\n        // The argument must be a DOM event\n        if ((!domevent.constructor.name.endsWith('Event')) || (!domevent.currentTarget)) {\n            log('warn', 'Uib:eventSend', `ARGUMENT NOT A DOM EVENT - use data attributes not function arguments to pass data. Arg Type: ${domevent.constructor.name}`, domevent)()\n            return\n        }\n\n        // Prevent default event action\n        domevent.preventDefault()\n\n        // The target element\n        const target = domevent.currentTarget\n\n        // Get target properties - only shows custom props not element default ones\n        const props = {}\n        Object.keys(target).forEach( key => {\n            if (key.startsWith('_')) return // Exclude private\n            props[key] = target[key]\n        })\n\n        // Attempt to get target attributs - can fail for certain target types\n        const ignoreAttribs = ['class', 'id', 'name']\n        let attribs\n        try {\n            attribs = Object.assign({},\n                ...Array.from(target.attributes,\n                    ( { name, value } ) => {\n                        if ( !ignoreAttribs.includes(name) ) {\n                            return ({ [name]: value })\n                        }\n                        return undefined\n                    }\n                )\n            )\n        } catch (e) {}\n\n        // If target embedded in a form, include the form data\n        let form\n        const frmVals = []\n        if ( target.form ) {\n            form = {}\n            form.valid = target.form.checkValidity()\n            Object.values(target.form).forEach( (frmEl, i) => {\n                const id = frmEl.id !== '' ? frmEl.id : (frmEl.name !== '' ? frmEl.name : `${i}-${frmEl.type}`)\n\n                // We must have both an element id (we may have forced one above) AND\n                // the element type MUST be not undefined - to allow for the extra properties added by frameworks such as Svelte\n                if (id !== '' && frmEl.type) {\n                    // Stupid HTML doesn't use value attrib for checkboxes. So override if value is set to default\n                    if ('checked' in frmEl && frmEl.value === 'on') frmEl.value = frmEl.checked.toString()\n\n                    frmVals.push( { key: id, val: frmEl.value } ) // simplified for addition to msg.payload\n\n                    form[id] = {\n                        'id': frmEl.id,\n                        'name': frmEl.name,\n                        'value': frmEl.value,\n                        'valid': frmEl.checkValidity(),\n                        'type': frmEl.type,\n                    }\n\n                    if (form[id].valid === false) {\n                        const v = frmEl.validity\n                        form[id].validity = {\n                            badInput: v.badInput === true ? v.badInput : undefined,\n                            customError: v.customError === true ? v.customError : undefined,\n                            patternMismatch: v.patternMismatch === true ? v.patternMismatch : undefined,\n                            rangeOverflow: v.rangeOverflow === true ? v.rangeOverflow : undefined,\n                            rangeUnderflow: v.rangeUnderflow === true ? v.rangeUnderflow : undefined,\n                            stepMismatch: v.stepMismatch === true ? v.stepMismatch : undefined,\n                            tooLong: v.tooLong === true ? v.tooLong : undefined,\n                            tooShort: v.tooShort === true ? v.tooShort : undefined,\n                            typeMismatch: v.typeMismatch === true ? v.typeMismatch : undefined,\n                            valueMissing: v.valueMissing === true ? v.valueMissing : undefined,\n                        }\n                    }\n\n                    if (frmEl.dataset) form[id].data = frmEl.dataset\n                }\n            })\n        }\n\n        // Check for CSS Classes\n        let classes\n        try {\n            classes = Array.from(target.classList)\n        } catch (e) {}\n\n        // Each `data-xxxx` attribute is added as a property\n        let payload = { ...target.dataset }\n\n        // Handle Notification events\n        let nprops\n        if ( Object.prototype.toString.call(target) === '[object Notification]') {\n            // Fixed payload for convenience\n            payload = `notification-${target.userAction}`\n            // Capture the notification properties\n            nprops = {\n                // userAction: target.userAction, // uib custom prop: click, close or error\n                actions: target.actions,\n                badge: target.badge,\n                body: target.body,\n                data: target.data,\n                dir: target.dir,\n                icon: target.icon,\n                image: target.image,\n                lang: target.lang,\n                renotify: target.renotify,\n                requireInteraction: target.requireInteraction,\n                silent: target.silent,\n                tag: target.tag,\n                timestamp: target.timestamp,\n                title: target.title,\n                vibrate: target.vibrate,\n            }\n        }\n        // console.log(Object.prototype.toString.call(target))\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            // - this may be an empty Object if no data attributes defined\n            payload: payload,\n\n            _ui: {\n                type: 'eventSend',\n                id: target.id !== '' ? target.id : undefined,\n                name: target.name !== '' ? target.name : undefined,\n                slotText: target.textContent ? target.textContent.substring(0, 255) : undefined,\n\n                form: form,\n                props: props,\n                attribs: attribs,\n                classes: classes,\n\n                notification: nprops,\n\n                event: domevent.type,\n                altKey: domevent.altKey,\n                ctrlKey: domevent.ctrlKey,\n                shiftKey: domevent.shiftKey,\n                metaKey: domevent.metaKey,\n\n                pointerType: domevent.pointerType,\n                nodeName: target.nodeName,\n\n                clientId: this.clientId,\n                pageName: this.pageName,\n                tabId: this.tabId,\n            }\n        }\n\n        if (frmVals.length > 0) {\n            frmVals.forEach( entry => {\n                msg.payload[entry.key] = entry.val\n            })\n        }\n\n        if (domevent.type === 'change') {\n            // Checkboxes don't have a value!!\n            msg._ui.newValue = msg.payload.value = 'checked' in target ? target.checked : domevent.target.value\n        }\n\n        log('trace', 'Uib:eventSend', 'Sending msg to Node-RED', msg)()\n        if (target.dataset && target.dataset.length === 0) log('warn', 'Uib:eventSend', 'No payload in msg. data-* attributes should be used.')()\n\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Send a standard message to NR\n     * @example uibuilder.send({payload:'Hello'})\n     * @param {object} msg Message to send\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    send(msg, originator = '') {\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Send a control msg to NR\n     * @param {object} msg Message to send\n     */\n    sendCtrl(msg) {\n        this._send(msg, this._ioChannels.control)\n    }\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Socket.IO -------- //\n\n    /** Return the Socket.IO namespace\n     * The cookie method is the most reliable but this falls back to trying to work it\n     * out from the URL if cookies not available. That won't work if page is in a sub-folder.\n     * since 2017-10-21 Improve method to cope with more complex paths - thanks to Steve Rickus @shrickus\n     * since 2017-11-10 v1.0.1 Check cookie first then url. cookie works even if the path is more complex (e.g. sub-folder)\n     * since 2020-01-25 Removed httpRoot from namespace to prevent proxy induced errors\n     * @returns {string} Socket.IO namespace\n     */\n    _getIOnamespace() {\n\n        let ioNamespace\n\n        /** Try getting the namespace cookie. */\n        ioNamespace = this.cookies['uibuilder-namespace']\n\n        // if it wasn't available, try using the current url path\n        if (ioNamespace === undefined || ioNamespace === '') {\n            // split url path & eliminate any blank elements, and trailing or double slashes\n            const u = window.location.pathname.split('/')\n                .filter(function (t) { return t.trim() !== '' })\n\n            /** since v2.0.5 Extra check for 0 length, Issue #73. since 2017-11-06 If the last element of the path is an .html file name, remove it */\n            if (u.length > 0 && (u[u.length - 1].endsWith('.html'))) u.pop()\n\n            // Get the last part of the url path, this MUST match the namespace in uibuilder\n            ioNamespace = u.pop()\n\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via url path: ${ioNamespace}`)()\n        } else {\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via cookie: ${ioNamespace}`)()\n        }\n\n        this.url = ioNamespace\n        // Namespace HAS to start with a /\n        ioNamespace = '/' + ioNamespace\n\n        log('trace', 'uibuilder.module.js:getIOnamespace', `Final Socket.IO namespace: ${ioNamespace}`)()\n\n        return ioNamespace\n    } // --- End of set IO namespace --- //\n\n    /** Function used to check whether Socket.IO is connected to the server, reconnect if not (recursive)\n     * @param {number} [delay] Initial delay before checking (ms). Default=2000ms\n     * @param {number} [factor] Multiplication factor for subsequent checks (delay*factor). Default=1.5\n     * @param {number} [depth] Recursion depth\n     * @returns {boolean|undefined} Whether or not Socket.IO is connected to uibuilder in Node-RED\n     */\n    _checkConnect(delay, factor, depth = 1) {\n        if ( navigator.onLine === false ) return // Don't bother if we know we are offline\n\n        if (!delay) delay = this.retryMs\n        if (!factor) factor = this.retryFactor\n\n        log('trace', 'Uib:checkConnect', `Checking connection. Connected: ${this._socket.connected}. Timer: ${this.#timerid}. Depth: ${depth}. Delay: ${delay}. Factor: ${factor}`, this._socket)()\n\n        // If we are connected ...\n        if (this._socket.connected === true) {\n            // Clear the setTimeout\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this.set('ioConnected', true)\n            this.set('socketError', null)\n            return true\n        }\n\n        // ... we aren't connected so:\n        this.set('ioConnected', false)\n\n        // we only want one running at a time\n        if (this.#timerid) window.clearTimeout(this.#timerid)\n\n        // Create the new timer\n        this.#timerid = window.setTimeout(() => {\n            log('warn', 'Uib:checkConnect:setTimeout', `Socket.IO reconnection attempt. Current delay: ${delay}. Depth: ${depth}`)()\n\n            // this is necessary sometimes when the socket fails to connect on startup\n            this._socket.close()\n\n            // Try to reconnect\n            this._socket.connect()\n\n            // don't need to check whether we have connected as the timer will have been cleared if we have\n            this.#timerid = null\n\n            // @ts-ignore Create new timer for next time round with extended delay\n            this._checkConnect(delay * factor, factor, depth++)\n        }, delay)\n\n        return false\n    } // --- End of checkConnect Fn--- //\n\n    // See message handling section for msg receipt handlers\n\n    /** Called by _ioSetup when Socket.IO connects to Node-RED */\n    _onConnect() {\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n        log('info', 'Uib:ioSetup', `\u2705 SOCKET CONNECTED. Connection count: ${this.connectedNum}, Is a Recovery?: ${this._socket.recovered}. \\nNamespace: ${this.ioNamespace}`)()\n        this._dispatchCustomEvent('uibuilder:socket:connected', { 'numConnections': this.connectedNum, 'isRecovery': this._socket.recovered })\n\n        this._checkConnect() // resets any reconnection timers & sets connected flag\n    }\n\n    /** Called by _ioSetup when Socket.IO disconnects from Node-RED\n     * @param {string} reason Disconnection title\n     */\n    _onDisconnect(reason) {\n        // reason === 'io server disconnect' - redeploy of Node instance\n        // reason === 'transport close' - Node-RED terminating\n        // reason === 'ping timeout' - didn't receive a pong response?\n        log('info', 'Uib:ioSetup:socket-disconnect', `\u26D4 Socket Disconnected. Reason: ${reason}`)()\n\n        this._dispatchCustomEvent('uibuilder:socket:disconnected', reason)\n\n        /** A workaround for SIO's failure to reconnect after a disconnection */\n        this._checkConnect()\n    }\n\n    /** Setup Socket.io\n     * since v2.0.0-beta2 Moved to a function and called by the user (uibuilder.start()) so that namespace & path can be passed manually if needed\n     * @returns {boolean} Attaches socket.io manager to self._socket and updates self.ioNamespace & self.ioPath as needed\n     */\n    _ioSetup() {\n\n        // Just a notification, actual load is done outside the class (see start of file)\n        if (io === undefined) {\n            log('error', 'Uib:ioSetup', 'Socket.IO client not loaded, Node-RED comms will not work')()\n            return false\n        }\n\n        // If socket is already set up, close it and remove all of the listeners\n        if (this._socket) {\n            log('trace', 'Uib:ioSetup', 'Removing listeners in preparation for redoing Socket.IO connections')()\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this._socket.close()\n            this._socket.offAny()\n            this._socket = undefined\n            this.set('ioConnected', false)\n        }\n\n        // Update the URL path to make sure we have the right one\n        this.socketOptions.path = this.ioPath\n\n        // NOTE: this._socket.auth is now set by callback and so automatically updated for each client (re)connection. No need to set here\n\n        // Create the socket - make sure client uses Socket.IO version from the uibuilder module (using path)\n        log('trace', 'Uib:ioSetup', `About to create IO object. Transports: [${this.socketOptions.transports.join(', ')}]`)()\n        this._socket = io(this.ioNamespace, this.socketOptions)\n\n        /** When the socket is connected - set ioConnected flag and reset connect timer  */\n        this._socket.on('connect', this._onConnect.bind(this))\n\n        // RECEIVE a STANDARD, non-control msg from Node-RED server\n        this._socket.on(this._ioChannels.server, this._stdMsgFromServer.bind(this))\n\n        // RECEIVE a CONTROL msg from Node-RED server - see also sendCtrl()\n        this._socket.on(this._ioChannels.control, this._ctrlMsgFromServer.bind(this))\n\n        // When the socket is disconnected ..............\n        this._socket.on('disconnect', this._onDisconnect.bind(this))\n\n        // Socket.io connection error - probably the wrong ioPath - or client is offline\n        this._socket.on('connect_error', (err) => {\n            if ( navigator.onLine === false ) return // Don't bother with an error if we know we are offline\n            log('error', 'Uib:ioSetup:connect_error', `\u274C Socket.IO Connect Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket connect error processing ---\n\n        // Socket.io error - from the server (socket.use middleware triggered an error response)\n        this._socket.on('error', (err) => {\n            log('error', 'Uib:ioSetup:error', `\u274C Socket.IO Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket error processing ---\n\n        // Ensure we are connected, retry if not\n        this._checkConnect()\n\n        return true\n\n        /* We really don't need these, just for interest\n            self._socket.io.on('packet', function onPacket(data){\n                // we get one of these for each REAL msg (not ping/pong)\n                console.debug('PACKET', data)\n            })\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n                //console.dir(self._socket)\n            }) // --- End of socket pong processing ---\n            self._socket.io.on('packet', function(data){\n                // We get one of these for actual messages, not ping/pong\n                console.debug('PACKET', data)\n            })\n            self._socket.on('connect_timeout', function(timeout) {\n                console.debug('SOCKET CONNECT TIMEOUT - Namespace: ' + ioNamespace + ', Timeout: ' + timeout)\n            }) // --- End of socket connect timeout processing ---\n            self._socket.on('reconnect', function(attemptNum) {\n                console.debug('SOCKET RECONNECTED - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect processing ---\n            self._socket.on('reconnect_attempt', function(attemptNum) {\n                console.debug('SOCKET RECONNECT ATTEMPT - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect_attempt processing ---\n            self._socket.on('reconnecting', function(attemptNum) {\n                console.debug('SOCKET RECONNECTING - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnecting processing ---\n            self._socket.on('reconnect_error', function(err) {\n                console.debug('SOCKET RECONNECT ERROR - Namespace: ' + ioNamespace + ', Reason: ' + err.message)\n                //console.dir(err)\n            }) // --- End of socket reconnect_error processing ---\n            self._socket.on('reconnect_failed', function() {\n                console.debug('SOCKET RECONNECT FAILED - Namespace: ' + ioNamespace)\n            }) // --- End of socket reconnect_failed processing ---\n            self._socket.on('ping', function() {\n                console.debug('SOCKET PING')\n            }) // --- End of socket ping processing ---\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n            }) // --- End of socket pong processing ---\n            */\n    } // ---- End of ioSetup ---- //\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Class construction & startup method -------- //\n\n    constructor() {\n        log('trace', 'Uib:constructor', 'Starting')()\n\n        // Track whether the client is online or offline\n        window.addEventListener('offline', (e) => {\n            this.set('online', false)\n            this.set('ioConnected', false)\n            log('warn', 'Browser', 'DISCONNECTED from network')()\n        })\n        window.addEventListener('online', (e) => {\n            this.set('online', true)\n            log('warn', 'Browser', 'Reconnected to network')()\n            this._checkConnect()\n        })\n\n        document.cookie.split(';').forEach((c) => {\n            const splitC = c.split('=')\n            this.cookies[splitC[0].trim()] = splitC[1]\n        })\n\n        /** Client ID set by uibuilder - lasts until browser profile is closed, applies to all tabs */\n        this.set('clientId', this.cookies['uibuilder-client-id'])\n        log('trace', 'Uib:constructor', 'Client ID: ', this.clientId)()\n\n        /** Tab ID - lasts while the tab is open (even if reloaded)\n         * WARNING: Duplicating a tab retains the same tabId\n         */\n        this.set('tabId', window.sessionStorage.getItem('tabId'))\n        if (!this.tabId) {\n            this.set('tabId', `t${Math.floor(Math.random() * 1000000)}`)\n            window.sessionStorage.setItem('tabId', this.tabId)\n        }\n\n        // document.addEventListener('pagehide', (event) => {\n        //     // console.log(`pagehide. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pagehide. From Cache?: ${event.persisted}`)\n        // })\n        // document.addEventListener('pageshow', (event) => {\n        //     // console.log(`pageshow. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pageshow. From Cache?: ${event.persisted}`)\n        // })\n        document.addEventListener('load', () => {\n            this.set('isVisible', true)\n        })\n        document.addEventListener('visibilitychange', () => {\n            // hidden=unload, minimise. visible=un-minimise (not fired on load)\n            this.set('isVisible', document.visibilityState === 'visible')\n            this.sendCtrl({ uibuilderCtrl: 'visibility', isVisible: this.isVisible })\n            // navigator.userActivation is experimental Chromium only\n            // console.log('visibilitychange', ':', `Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n            // navigator.sendBeacon('./_clientLog', `${(new Date()).toISOString()} Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n        })\n\n        // Set a listener to update showStatus table if it is active\n        document.addEventListener('uibuilder:propertyChanged', (event) => {\n            if (!this.#isShowStatus) return\n\n            // @ts-ignore\n            if (event.detail.prop in this.#showStatus) {\n                // @ts-ignore\n                document.querySelector(`td[data-vartype=\"${event.detail.prop}\"]`).innerText = JSON.stringify(event.detail.value)\n            }\n        })\n\n        this.set('ioNamespace', this._getIOnamespace())\n\n        //#region - Try to make sure client uses Socket.IO client version from the uibuilder module (using cookie or path) @since v2.0.0 2019-02-24 allows for httpNodeRoot\n\n        /** httpNodeRoot (to set path) */\n        if ('uibuilder-webRoot' in this.cookies) {\n            this.set('httpNodeRoot', this.cookies['uibuilder-webRoot'])\n            log('trace', 'Uib:constructor', `httpNodeRoot set by cookie to \"${this.httpNodeRoot}\"`)()\n        } else {\n            // split current url path, eliminate any blank elements and trailing or double slashes\n            const fullPath = window.location.pathname.split('/').filter(function (t) { return t.trim() !== '' })\n            /** handle url includes file name - @since v2.0.5 Extra check for 0 length, Issue #73. */\n            if (fullPath.length > 0 && fullPath[fullPath.length - 1].endsWith('.html')) fullPath.pop()\n            fullPath.pop() // gives the last path section of the url\n            this.set('httpNodeRoot', `/${fullPath.join('/')}`)\n            log('trace', '[Uib:constructor]', `httpNodeRoot set by URL parsing to \"${this.httpNodeRoot}\". NOTE: This may fail for pages in sub-folders.`)()\n        }\n        this.set('ioPath', urlJoin(this.httpNodeRoot, Uib._meta.displayName, 'vendor', 'socket.io'))\n        log('trace', 'Uib:constructor', `ioPath: \"${this.ioPath}\"`)()\n\n        //#endregion\n\n        // Work out pageName\n        this.set('pageName', window.location.pathname.replace(`${this.ioNamespace}/`, ''))\n        if ( this.pageName.endsWith('/') ) this.set('pageName', `${this.pageName}index.html`)\n        if ( this.pageName === '' ) this.set('pageName', 'index.html')\n\n        // Attempt to restore autoload variables\n        try {\n            const autoloadVars = this.getStore('_uibAutoloadVars')\n            if (Object.keys(autoloadVars).length > 0) {\n                Object.keys(autoloadVars).forEach( (id) => {\n                    this.set(id, this.getStore(id))\n                })\n            }\n        } catch (e) {}\n\n        this._dispatchCustomEvent('uibuilder:constructorComplete')\n\n        log('trace', 'Uib:constructor', 'Ending')()\n    }\n\n    /** Start up Socket.IO comms and listeners\n     * This has to be done separately because if running from a web page in a sub-folder of src/dist, uibuilder cannot\n     * necessarily work out the correct ioPath to use.\n     * Also, if cookies aren't permitted in the browser, both ioPath and ioNamespace may need to be specified.\n     * @param {object} [options] The start options object.\n     * @returns {void}\n     */\n    start(options) {\n        log('trace', 'Uib:start', 'Starting')()\n\n        // Cancel the msg event handler if already present\n        if ( this.#MsgHandler ) this.cancelChange('msg', this.#MsgHandler)\n\n        if (this.started === true) {\n            log('info', 'Uib:start', 'Start function already called. Resetting Socket.IO and msg handler.')()\n        }\n\n        log('log', 'Uib:start', 'Cookies: ', this.cookies, `\\nClient ID: ${this.clientId}`)()\n        log('trace', 'Uib:start', 'ioNamespace: ', this.ioNamespace, `\\nioPath: ${this.ioPath}`)()\n\n        // Handle options\n        if (options) {\n            if (options.ioNamespace !== undefined && options.ioNamespace !== null && options.ioNamespace !== '') this.set('ioNamespace', options.ioNamespace)\n            if (options.ioPath !== undefined && options.ioPath !== null && options.ioPath !== '') this.set('ioPath', options.ioPath)\n            // See below for handling of options.loadStylesheet\n        }\n\n        // Do we need to load styles?\n        if ( document.styleSheets.length >= 1 || (document.styleSheets.length === 1 && document.styleSheets[0].cssRules.length === 0) ) {\n            log('info', 'Uib:start', 'Styles already loaded so not loading uibuilder default styles.')()\n        } else {\n            if (options && options.loadStylesheet === false) log('info', 'Uib:start', 'No styles loaded & options.loadStylesheet === false.')()\n            else {\n                log('info', 'Uib:start', 'No styles loaded, loading uibuilder default styles.')()\n                this.loadStyleSrc(`${this.httpNodeRoot}/uibuilder/uib-brand.min.css`)\n            }\n        }\n\n        /** Handle specialist messages like reload and _ui -> Moved to _msgRcvdEvents */\n\n        // Track last browser navigation type: navigate, reload, back_forward, prerender\n        const [entry] = performance.getEntriesByType('navigation')\n        // @ts-ignore\n        this.set('lastNavType', entry.type)\n\n        // Start up (or restart) Socket.IO connections and listeners. Returns false if io not found\n        this.set('started', this._ioSetup())\n\n        if ( this.started === true ) {\n            log('trace', 'Uib:start', 'Start completed. Socket.IO client library loaded.')()\n        } else {\n            log('error', 'Uib:start', 'Start completed. ERROR: Socket.IO client library NOT LOADED.')()\n        }\n\n        // Watch for URL hash changes in case using a front-end router. Updates watched var `urlHash` and socket.io `auth.urlHash`\n        this._watchHashChanges()\n\n        // Check if Vue is present (used for dynamic UI processing)\n        if (window['Vue']) {\n            this.set('isVue', true)\n            try {\n                this.set('vueVersion', window['Vue'].version)\n            } catch (e) { }\n            log('trace', 'Uib:start', `VueJS is loaded. Version: ${this.vueVersion}`)()\n        } else {\n            log('trace', 'Uib:start', 'VueJS is not loaded.')()\n        }\n\n        // Check if DOMPurify library is loaded\n        if (window['DOMPurify']) {\n            this.set('purify', true)\n            log('trace', 'Uib:start', 'DOMPurify is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'DOMPurify is not loaded.')()\n        }\n        // Check if Markdown-IT library is loaded\n        if (window['markdownit']) {\n            this.set('markdown', true)\n            log('trace', 'Uib:start', 'Markdown-IT is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'Markdown-IT is not loaded.')()\n        }\n\n        // if (window['DOMPurify']) {\n        //     this.set('purify', true)\n        //     log('trace', 'Uib:start', 'DOMPurify is loaded.')\n        // } else {\n        //     log('trace', 'Uib:start', 'DOMPurify is not loaded.')\n        // }\n\n        // Set up msg listener for the optional showMsg\n        this.onChange('msg', (msg) => {\n            if (this.#isShowMsg === true) {\n                const eMsg = document.getElementById('uib_last_msg')\n                if (eMsg) eMsg.innerHTML = this.syntaxHighlight(msg)\n            }\n        })\n\n        this._dispatchCustomEvent('uibuilder:startComplete')\n    }\n\n    //#endregion -------- ------------ -------- //\n} // ==== End of Class Uib ====\n\n//#region --- Wrap up - get things started ---\n\n// Create an instance (we will only ever want one)\nconst uibuilder = new Uib()\n\n// Assign reference to the instance to the global `window` object\n// Only useful if loading via <script> tag - prefer loading via `import uibuilder from ...`\nif (!window['uibuilder']) {\n    window['uibuilder'] = uibuilder\n} else {\n    log('error', 'uibuilder.module.js', '`uibuilder` already assigned to window. Have you tried to load it more than once?')\n}\nif (!window['uib']) {\n    window['uib'] = uibuilder\n} else {\n    log('warn', 'uibuilder.module.js', '`uib` shortcut already assigned to window.')\n}\n\n// Assign `$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$`.\nif (!window['$']) {\n    /** @type {HTMLElement} */\n    window['$'] = window['uibuilder'].$ // document.querySelector.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` or `uib.$` instead.')\n}\n// Assign `$$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$$']) {\n    /** @type {HTMLElement} */\n    window['$$'] = window['uibuilder'].$$ // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` or `uib.$$` instead.')\n}\n\n// Assign `$ui` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$ui']) {\n    /** @type {HTMLElement} */\n    window['$ui'] = window['uibuilder'].$ui // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$ui`, it is already in use. Use `uibuilder.$ui` or `uib.$ui` instead.')\n}\n\n// Can import as `import uibuilder from ...` OR `import {uibuilder} from ...`\nexport { uibuilder }\nexport default uibuilder\n\n// Attempt to run start fn\nuibuilder.start()\n\n// Add the class as a new Custom Element to the window object\ncustomElements.define('uib-var', UibVar)\n\n//#endregion --- Wrap up ---\n\n// EOF\n", "/** A zero dependency web component that will display a managed uibuilder variable.\n *\n * Version: 0.0.1 2023-10-07\n *\n * ToDo:\n * -\n */\n/*\n  Copyright (c) 2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n// const template = document.createElement('template')\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<link type=\"text/css\" rel=\"stylesheet\" href=\"\"../uibuilder/uib-brand.min.css\"\" media=\"all\"><span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`\n// {/* <style>@import url(\"../uibuilder/uib-brand.min.css\");</style><span></span> */}\n// `\n\nexport default class UibVar extends HTMLElement {\n    //#region --- Class Properties ---\n    /** @type {string} Name of the uibuilder mangaged variable to use */\n    variable\n    /** Current value of the watched variable */\n    value\n    /** Whether to output if the variable is undefined */\n    undefined = false\n    /** Whether to send update value to Node-RED on change */\n    report = false\n    /** What is the value type */\n    type = 'plain'\n    /** what are the available types? */\n    types = ['plain', 'html', 'markdown', 'object']\n\n    /** Mini jQuery-like shadow dom selector (see constructor) */\n    $\n    \n    /** Holds a count of how many instances of this component are on the page */\n    static _iCount = 0\n    /** @type {Array<string>} List of all of the html attribs (props) listened to */\n    static props = ['name', 'id', 'variable', 'undefined', 'report', 'type']\n    //#endregion --- Class Properties ---\n\n    constructor() {\n        super()\n        this.shadow = this.attachShadow({ mode: 'open', delegatesFocus: true })\n            // .append(template.content.cloneNode(true))\n\n        this.$ = this.shadowRoot.querySelector.bind(this.shadowRoot)\n\n        // Apply external styles to the shadow dom\n        this.css = document.createElement(\"link\")\n        this.css.setAttribute(\"type\", \"text/css\")\n        this.css.setAttribute(\"rel\", \"stylesheet\")\n        this.css.setAttribute(\"href\", \"../uibuilder/uib-brand.min.css\")\n\n        this.dispatchEvent(new Event(`uib-var:construction`, { bubbles: true, composed: true }))\n    }\n\n    // Makes HTML attribute change watched\n    static get observedAttributes() {\n        return UibVar.props\n    }\n\n    /** NOTE: On initial startup, this is called for each watched attrib set in HTML - BEFORE connectedCallback is called  */\n    attributeChangedCallback(attrib, oldVal, newVal) {\n        if ( oldVal === newVal ) return\n\n        switch (attrib) {\n            case 'variable': {\n                if (newVal === '') throw new Error('[uib-var] Attribute \"variable\" MUST be set to a UIBUILDER managed variable name')\n                this.variable = newVal\n                this.doWatch()\n                break\n            }\n            case 'undefined': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.undefined = true\n                else this.undefined = false\n                break\n            }\n            case 'report': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.report = true\n                else this.report = false\n                break\n            }\n            case 'type': {\n                if (newVal === '' || !this.types.includes(newVal.toLowerCase())) this.type = 'plain'\n                else this.type = newVal\n                break\n            }\n\n            default: {\n                this[attrib] = newVal\n                break\n            }\n        }\n    } // --- end of attributeChangedCallback --- //\n\n    // Runs when an instance is added to the DOM\n    connectedCallback() {\n        // Make sure instance has an ID. Create an id from name or calculation if needed\n        if (!this.id) {\n            if (!this.name) this.name = this.getAttribute('name')\n            if (this.name) this.id = this.name.toLowerCase().replace(/\\s/g, '_')\n            else this.id = `uib-var-${++UibVar._iCount}`\n        }\n    }  // ---- end of connectedCallback ---- //\n\n    // Runs when an instance is removed from the DOM\n    // disconnectedCallback() {} // ---- end of disconnectedCallback ---- //\n\n    /** Process changes to the required uibuilder variable */\n    doWatch() {\n        if (!this.variable) throw new Error('No variable name provided')\n        // if (!window['uibuilder']) throw new Error('UIBUILDER client library not loaded - this component must be loaded AFTER the UIBUILDER library')\n\n        this.value = window['uibuilder'].get(this.variable)\n        this.varDom()\n\n        // Watch for changes in the variable\n        window['uibuilder'].onChange(this.variable, (val) => {\n            this.value = val\n            this.varDom()\n            if (this.report === true) window['uibuilder'].send({topic: this.variable, payload: this.value || undefined})\n        })\n    }\n\n    /** Convert this.value to DOM output */\n    varDom() {\n        // If user doesn't want to show undefined vars, allow the component slot to show instead\n        if (this.value === undefined && this.undefined !== true) { \n            this.shadow.innerHTML = '<slot></slot>'\n            return\n        }\n        \n        let val = this.value\n\n        // console.log('\uD83E\uDDEA varDOM: ', val, typeof val, this.type)\n\n        switch (this.type) {\n            case 'markdown': {\n                this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(window['uibuilder'].convertMarkdown(val))\n                break\n            }\n        \n            case 'object': {\n                // console.log(window['uibuilder'].syntaxHighlight(val))\n                this.shadow.innerHTML = `<pre class=\"syntax-highlight\">${window['uibuilder'].syntaxHighlight(val)}</pre>`\n                break\n            }\n        \n            case 'plain':\n            case 'html':\n            default: {\n                const t = typeof val\n                if (Array.isArray(val) || t === '[object Object]' || t === 'object') {\n                    try {\n                        this.shadow.innerHTML = JSON.stringify(val)\n                    } catch (e) {\n                        this.shadow.innerHTML = val\n                    }\n                } else {\n                    this.shadow.innerHTML = val\n                }\n                break\n            }\n        }\n\n        this.shadow.appendChild(this.css)\n        // this.$('span').innerHTML = window['uibuilder'].sanitiseHTML(val)\n        // this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(val)\n    }\n}\n\n// Add the class as a new Custom Element to the window object \n// customElements.define('uib-var', UibVar)\n", "const PACKET_TYPES = Object.create(null); // no Map = no polyfill\nPACKET_TYPES[\"open\"] = \"0\";\nPACKET_TYPES[\"close\"] = \"1\";\nPACKET_TYPES[\"ping\"] = \"2\";\nPACKET_TYPES[\"pong\"] = \"3\";\nPACKET_TYPES[\"message\"] = \"4\";\nPACKET_TYPES[\"upgrade\"] = \"5\";\nPACKET_TYPES[\"noop\"] = \"6\";\nconst PACKET_TYPES_REVERSE = Object.create(null);\nObject.keys(PACKET_TYPES).forEach(key => {\n    PACKET_TYPES_REVERSE[PACKET_TYPES[key]] = key;\n});\nconst ERROR_PACKET = { type: \"error\", data: \"parser error\" };\nexport { PACKET_TYPES, PACKET_TYPES_REVERSE, ERROR_PACKET };\n", "import { PACKET_TYPES } from \"./commons.js\";\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        Object.prototype.toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\n// ArrayBuffer.isView method is not defined in IE10\nconst isView = obj => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj && obj.buffer instanceof ArrayBuffer;\n};\nconst encodePacket = ({ type, data }, supportsBinary, callback) => {\n    if (withNativeBlob && data instanceof Blob) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(data, callback);\n        }\n    }\n    else if (withNativeArrayBuffer &&\n        (data instanceof ArrayBuffer || isView(data))) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(new Blob([data]), callback);\n        }\n    }\n    // plain string\n    return callback(PACKET_TYPES[type] + (data || \"\"));\n};\nconst encodeBlobAsBase64 = (data, callback) => {\n    const fileReader = new FileReader();\n    fileReader.onload = function () {\n        const content = fileReader.result.split(\",\")[1];\n        callback(\"b\" + (content || \"\"));\n    };\n    return fileReader.readAsDataURL(data);\n};\nfunction toArray(data) {\n    if (data instanceof Uint8Array) {\n        return data;\n    }\n    else if (data instanceof ArrayBuffer) {\n        return new Uint8Array(data);\n    }\n    else {\n        return new Uint8Array(data.buffer, data.byteOffset, data.byteLength);\n    }\n}\nlet TEXT_ENCODER;\nexport function encodePacketToBinary(packet, callback) {\n    if (withNativeBlob && packet.data instanceof Blob) {\n        return packet.data\n            .arrayBuffer()\n            .then(toArray)\n            .then(callback);\n    }\n    else if (withNativeArrayBuffer &&\n        (packet.data instanceof ArrayBuffer || isView(packet.data))) {\n        return callback(toArray(packet.data));\n    }\n    encodePacket(packet, false, encoded => {\n        if (!TEXT_ENCODER) {\n            TEXT_ENCODER = new TextEncoder();\n        }\n        callback(TEXT_ENCODER.encode(encoded));\n    });\n}\nexport { encodePacket };\n", "// imported from https://github.com/socketio/base64-arraybuffer\nconst chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';\n// Use a lookup table to find the index.\nconst lookup = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);\nfor (let i = 0; i < chars.length; i++) {\n    lookup[chars.charCodeAt(i)] = i;\n}\nexport const encode = (arraybuffer) => {\n    let bytes = new Uint8Array(arraybuffer), i, len = bytes.length, base64 = '';\n    for (i = 0; i < len; i += 3) {\n        base64 += chars[bytes[i] >> 2];\n        base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];\n        base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];\n        base64 += chars[bytes[i + 2] & 63];\n    }\n    if (len % 3 === 2) {\n        base64 = base64.substring(0, base64.length - 1) + '=';\n    }\n    else if (len % 3 === 1) {\n        base64 = base64.substring(0, base64.length - 2) + '==';\n    }\n    return base64;\n};\nexport const decode = (base64) => {\n    let bufferLength = base64.length * 0.75, len = base64.length, i, p = 0, encoded1, encoded2, encoded3, encoded4;\n    if (base64[base64.length - 1] === '=') {\n        bufferLength--;\n        if (base64[base64.length - 2] === '=') {\n            bufferLength--;\n        }\n    }\n    const arraybuffer = new ArrayBuffer(bufferLength), bytes = new Uint8Array(arraybuffer);\n    for (i = 0; i < len; i += 4) {\n        encoded1 = lookup[base64.charCodeAt(i)];\n        encoded2 = lookup[base64.charCodeAt(i + 1)];\n        encoded3 = lookup[base64.charCodeAt(i + 2)];\n        encoded4 = lookup[base64.charCodeAt(i + 3)];\n        bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n        bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n        bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n    }\n    return arraybuffer;\n};\n", "import { ERROR_PACKET, PACKET_TYPES_REVERSE } from \"./commons.js\";\nimport { decode } from \"./contrib/base64-arraybuffer.js\";\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nexport const decodePacket = (encodedPacket, binaryType) => {\n    if (typeof encodedPacket !== \"string\") {\n        return {\n            type: \"message\",\n            data: mapBinary(encodedPacket, binaryType)\n        };\n    }\n    const type = encodedPacket.charAt(0);\n    if (type === \"b\") {\n        return {\n            type: \"message\",\n            data: decodeBase64Packet(encodedPacket.substring(1), binaryType)\n        };\n    }\n    const packetType = PACKET_TYPES_REVERSE[type];\n    if (!packetType) {\n        return ERROR_PACKET;\n    }\n    return encodedPacket.length > 1\n        ? {\n            type: PACKET_TYPES_REVERSE[type],\n            data: encodedPacket.substring(1)\n        }\n        : {\n            type: PACKET_TYPES_REVERSE[type]\n        };\n};\nconst decodeBase64Packet = (data, binaryType) => {\n    if (withNativeArrayBuffer) {\n        const decoded = decode(data);\n        return mapBinary(decoded, binaryType);\n    }\n    else {\n        return { base64: true, data }; // fallback for old browsers\n    }\n};\nconst mapBinary = (data, binaryType) => {\n    switch (binaryType) {\n        case \"blob\":\n            if (data instanceof Blob) {\n                // from WebSocket + binaryType \"blob\"\n                return data;\n            }\n            else {\n                // from HTTP long-polling or WebTransport\n                return new Blob([data]);\n            }\n        case \"arraybuffer\":\n        default:\n            if (data instanceof ArrayBuffer) {\n                // from HTTP long-polling (base64) or WebSocket + binaryType \"arraybuffer\"\n                return data;\n            }\n            else {\n                // from WebTransport (Uint8Array)\n                return data.buffer;\n            }\n    }\n};\n", "import { encodePacket, encodePacketToBinary } from \"./encodePacket.js\";\nimport { decodePacket } from \"./decodePacket.js\";\nimport { ERROR_PACKET } from \"./commons.js\";\nconst SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text\nconst encodePayload = (packets, callback) => {\n    // some packets may be added to the array while encoding, so the initial length must be saved\n    const length = packets.length;\n    const encodedPackets = new Array(length);\n    let count = 0;\n    packets.forEach((packet, i) => {\n        // force base64 encoding for binary packets\n        encodePacket(packet, false, encodedPacket => {\n            encodedPackets[i] = encodedPacket;\n            if (++count === length) {\n                callback(encodedPackets.join(SEPARATOR));\n            }\n        });\n    });\n};\nconst decodePayload = (encodedPayload, binaryType) => {\n    const encodedPackets = encodedPayload.split(SEPARATOR);\n    const packets = [];\n    for (let i = 0; i < encodedPackets.length; i++) {\n        const decodedPacket = decodePacket(encodedPackets[i], binaryType);\n        packets.push(decodedPacket);\n        if (decodedPacket.type === \"error\") {\n            break;\n        }\n    }\n    return packets;\n};\nexport function createPacketEncoderStream() {\n    return new TransformStream({\n        transform(packet, controller) {\n            encodePacketToBinary(packet, encodedPacket => {\n                const payloadLength = encodedPacket.length;\n                let header;\n                // inspired by the WebSocket format: https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API/Writing_WebSocket_servers#decoding_payload_length\n                if (payloadLength < 126) {\n                    header = new Uint8Array(1);\n                    new DataView(header.buffer).setUint8(0, payloadLength);\n                }\n                else if (payloadLength < 65536) {\n                    header = new Uint8Array(3);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 126);\n                    view.setUint16(1, payloadLength);\n                }\n                else {\n                    header = new Uint8Array(9);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 127);\n                    view.setBigUint64(1, BigInt(payloadLength));\n                }\n                // first bit indicates whether the payload is plain text (0) or binary (1)\n                if (packet.data && typeof packet.data !== \"string\") {\n                    header[0] |= 0x80;\n                }\n                controller.enqueue(header);\n                controller.enqueue(encodedPacket);\n            });\n        }\n    });\n}\nlet TEXT_DECODER;\nfunction totalLength(chunks) {\n    return chunks.reduce((acc, chunk) => acc + chunk.length, 0);\n}\nfunction concatChunks(chunks, size) {\n    if (chunks[0].length === size) {\n        return chunks.shift();\n    }\n    const buffer = new Uint8Array(size);\n    let j = 0;\n    for (let i = 0; i < size; i++) {\n        buffer[i] = chunks[0][j++];\n        if (j === chunks[0].length) {\n            chunks.shift();\n            j = 0;\n        }\n    }\n    if (chunks.length && j < chunks[0].length) {\n        chunks[0] = chunks[0].slice(j);\n    }\n    return buffer;\n}\nexport function createPacketDecoderStream(maxPayload, binaryType) {\n    if (!TEXT_DECODER) {\n        TEXT_DECODER = new TextDecoder();\n    }\n    const chunks = [];\n    let state = 0 /* READ_HEADER */;\n    let expectedLength = -1;\n    let isBinary = false;\n    return new TransformStream({\n        transform(chunk, controller) {\n            chunks.push(chunk);\n            while (true) {\n                if (state === 0 /* READ_HEADER */) {\n                    if (totalLength(chunks) < 1) {\n                        break;\n                    }\n                    const header = concatChunks(chunks, 1);\n                    isBinary = (header[0] & 0x80) === 0x80;\n                    expectedLength = header[0] & 0x7f;\n                    if (expectedLength < 126) {\n                        state = 3 /* READ_PAYLOAD */;\n                    }\n                    else if (expectedLength === 126) {\n                        state = 1 /* READ_EXTENDED_LENGTH_16 */;\n                    }\n                    else {\n                        state = 2 /* READ_EXTENDED_LENGTH_64 */;\n                    }\n                }\n                else if (state === 1 /* READ_EXTENDED_LENGTH_16 */) {\n                    if (totalLength(chunks) < 2) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 2);\n                    expectedLength = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length).getUint16(0);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else if (state === 2 /* READ_EXTENDED_LENGTH_64 */) {\n                    if (totalLength(chunks) < 8) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 8);\n                    const view = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length);\n                    const n = view.getUint32(0);\n                    if (n > Math.pow(2, 53 - 32) - 1) {\n                        // the maximum safe integer in JavaScript is 2^53 - 1\n                        controller.enqueue(ERROR_PACKET);\n                        break;\n                    }\n                    expectedLength = n * Math.pow(2, 32) + view.getUint32(4);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else {\n                    if (totalLength(chunks) < expectedLength) {\n                        break;\n                    }\n                    const data = concatChunks(chunks, expectedLength);\n                    controller.enqueue(decodePacket(isBinary ? data : TEXT_DECODER.decode(data), binaryType));\n                    state = 0 /* READ_HEADER */;\n                }\n                if (expectedLength === 0 || expectedLength > maxPayload) {\n                    controller.enqueue(ERROR_PACKET);\n                    break;\n                }\n            }\n        }\n    });\n}\nexport const protocol = 4;\nexport { encodePacket, encodePayload, decodePacket, decodePayload };\n", "/**\n * Initialize a new `Emitter`.\n *\n * @api public\n */\n\nexport function Emitter(obj) {\n  if (obj) return mixin(obj);\n}\n\n/**\n * Mixin the emitter properties.\n *\n * @param {Object} obj\n * @return {Object}\n * @api private\n */\n\nfunction mixin(obj) {\n  for (var key in Emitter.prototype) {\n    obj[key] = Emitter.prototype[key];\n  }\n  return obj;\n}\n\n/**\n * Listen on the given `event` with `fn`.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.on =\nEmitter.prototype.addEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])\n    .push(fn);\n  return this;\n};\n\n/**\n * Adds an `event` listener that will be invoked a single\n * time then automatically removed.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.once = function(event, fn){\n  function on() {\n    this.off(event, on);\n    fn.apply(this, arguments);\n  }\n\n  on.fn = fn;\n  this.on(event, on);\n  return this;\n};\n\n/**\n * Remove the given callback for `event` or all\n * registered callbacks.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.off =\nEmitter.prototype.removeListener =\nEmitter.prototype.removeAllListeners =\nEmitter.prototype.removeEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n\n  // all\n  if (0 == arguments.length) {\n    this._callbacks = {};\n    return this;\n  }\n\n  // specific event\n  var callbacks = this._callbacks['$' + event];\n  if (!callbacks) return this;\n\n  // remove all handlers\n  if (1 == arguments.length) {\n    delete this._callbacks['$' + event];\n    return this;\n  }\n\n  // remove specific handler\n  var cb;\n  for (var i = 0; i < callbacks.length; i++) {\n    cb = callbacks[i];\n    if (cb === fn || cb.fn === fn) {\n      callbacks.splice(i, 1);\n      break;\n    }\n  }\n\n  // Remove event specific arrays for event types that no\n  // one is subscribed for to avoid memory leak.\n  if (callbacks.length === 0) {\n    delete this._callbacks['$' + event];\n  }\n\n  return this;\n};\n\n/**\n * Emit `event` with the given args.\n *\n * @param {String} event\n * @param {Mixed} ...\n * @return {Emitter}\n */\n\nEmitter.prototype.emit = function(event){\n  this._callbacks = this._callbacks || {};\n\n  var args = new Array(arguments.length - 1)\n    , callbacks = this._callbacks['$' + event];\n\n  for (var i = 1; i < arguments.length; i++) {\n    args[i - 1] = arguments[i];\n  }\n\n  if (callbacks) {\n    callbacks = callbacks.slice(0);\n    for (var i = 0, len = callbacks.length; i < len; ++i) {\n      callbacks[i].apply(this, args);\n    }\n  }\n\n  return this;\n};\n\n// alias used for reserved events (protected method)\nEmitter.prototype.emitReserved = Emitter.prototype.emit;\n\n/**\n * Return array of callbacks for `event`.\n *\n * @param {String} event\n * @return {Array}\n * @api public\n */\n\nEmitter.prototype.listeners = function(event){\n  this._callbacks = this._callbacks || {};\n  return this._callbacks['$' + event] || [];\n};\n\n/**\n * Check if this emitter has `event` handlers.\n *\n * @param {String} event\n * @return {Boolean}\n * @api public\n */\n\nEmitter.prototype.hasListeners = function(event){\n  return !! this.listeners(event).length;\n};\n", "export const globalThisShim = (() => {\n    if (typeof self !== \"undefined\") {\n        return self;\n    }\n    else if (typeof window !== \"undefined\") {\n        return window;\n    }\n    else {\n        return Function(\"return this\")();\n    }\n})();\n", "import { globalThisShim as globalThis } from \"./globalThis.js\";\nexport function pick(obj, ...attr) {\n    return attr.reduce((acc, k) => {\n        if (obj.hasOwnProperty(k)) {\n            acc[k] = obj[k];\n        }\n        return acc;\n    }, {});\n}\n// Keep a reference to the real timeout functions so they can be used when overridden\nconst NATIVE_SET_TIMEOUT = globalThis.setTimeout;\nconst NATIVE_CLEAR_TIMEOUT = globalThis.clearTimeout;\nexport function installTimerFunctions(obj, opts) {\n    if (opts.useNativeTimers) {\n        obj.setTimeoutFn = NATIVE_SET_TIMEOUT.bind(globalThis);\n        obj.clearTimeoutFn = NATIVE_CLEAR_TIMEOUT.bind(globalThis);\n    }\n    else {\n        obj.setTimeoutFn = globalThis.setTimeout.bind(globalThis);\n        obj.clearTimeoutFn = globalThis.clearTimeout.bind(globalThis);\n    }\n}\n// base64 encoded buffers are about 33% bigger (https://en.wikipedia.org/wiki/Base64)\nconst BASE64_OVERHEAD = 1.33;\n// we could also have used `new Blob([obj]).size`, but it isn't supported in IE9\nexport function byteLength(obj) {\n    if (typeof obj === \"string\") {\n        return utf8Length(obj);\n    }\n    // arraybuffer or blob\n    return Math.ceil((obj.byteLength || obj.size) * BASE64_OVERHEAD);\n}\nfunction utf8Length(str) {\n    let c = 0, length = 0;\n    for (let i = 0, l = str.length; i < l; i++) {\n        c = str.charCodeAt(i);\n        if (c < 0x80) {\n            length += 1;\n        }\n        else if (c < 0x800) {\n            length += 2;\n        }\n        else if (c < 0xd800 || c >= 0xe000) {\n            length += 3;\n        }\n        else {\n            i++;\n            length += 4;\n        }\n    }\n    return length;\n}\n", "// imported from https://github.com/galkn/querystring\n/**\n * Compiles a querystring\n * Returns string representation of the object\n *\n * @param {Object}\n * @api private\n */\nexport function encode(obj) {\n    let str = '';\n    for (let i in obj) {\n        if (obj.hasOwnProperty(i)) {\n            if (str.length)\n                str += '&';\n            str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);\n        }\n    }\n    return str;\n}\n/**\n * Parses a simple querystring into an object\n *\n * @param {String} qs\n * @api private\n */\nexport function decode(qs) {\n    let qry = {};\n    let pairs = qs.split('&');\n    for (let i = 0, l = pairs.length; i < l; i++) {\n        let pair = pairs[i].split('=');\n        qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);\n    }\n    return qry;\n}\n", "import { decodePacket } from \"engine.io-parser\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions } from \"./util.js\";\nimport { encode } from \"./contrib/parseqs.js\";\nexport class TransportError extends Error {\n    constructor(reason, description, context) {\n        super(reason);\n        this.description = description;\n        this.context = context;\n        this.type = \"TransportError\";\n    }\n}\nexport class Transport extends Emitter {\n    /**\n     * Transport abstract constructor.\n     *\n     * @param {Object} opts - options\n     * @protected\n     */\n    constructor(opts) {\n        super();\n        this.writable = false;\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.query = opts.query;\n        this.socket = opts.socket;\n    }\n    /**\n     * Emits an error.\n     *\n     * @param {String} reason\n     * @param description\n     * @param context - the error context\n     * @return {Transport} for chaining\n     * @protected\n     */\n    onError(reason, description, context) {\n        super.emitReserved(\"error\", new TransportError(reason, description, context));\n        return this;\n    }\n    /**\n     * Opens the transport.\n     */\n    open() {\n        this.readyState = \"opening\";\n        this.doOpen();\n        return this;\n    }\n    /**\n     * Closes the transport.\n     */\n    close() {\n        if (this.readyState === \"opening\" || this.readyState === \"open\") {\n            this.doClose();\n            this.onClose();\n        }\n        return this;\n    }\n    /**\n     * Sends multiple packets.\n     *\n     * @param {Array} packets\n     */\n    send(packets) {\n        if (this.readyState === \"open\") {\n            this.write(packets);\n        }\n        else {\n            // this might happen if the transport was silently closed in the beforeunload event handler\n        }\n    }\n    /**\n     * Called upon open\n     *\n     * @protected\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        this.writable = true;\n        super.emitReserved(\"open\");\n    }\n    /**\n     * Called with data.\n     *\n     * @param {String} data\n     * @protected\n     */\n    onData(data) {\n        const packet = decodePacket(data, this.socket.binaryType);\n        this.onPacket(packet);\n    }\n    /**\n     * Called with a decoded packet.\n     *\n     * @protected\n     */\n    onPacket(packet) {\n        super.emitReserved(\"packet\", packet);\n    }\n    /**\n     * Called upon close.\n     *\n     * @protected\n     */\n    onClose(details) {\n        this.readyState = \"closed\";\n        super.emitReserved(\"close\", details);\n    }\n    /**\n     * Pauses the transport, in order not to lose packets during an upgrade.\n     *\n     * @param onPause\n     */\n    pause(onPause) { }\n    createUri(schema, query = {}) {\n        return (schema +\n            \"://\" +\n            this._hostname() +\n            this._port() +\n            this.opts.path +\n            this._query(query));\n    }\n    _hostname() {\n        const hostname = this.opts.hostname;\n        return hostname.indexOf(\":\") === -1 ? hostname : \"[\" + hostname + \"]\";\n    }\n    _port() {\n        if (this.opts.port &&\n            ((this.opts.secure && Number(this.opts.port !== 443)) ||\n                (!this.opts.secure && Number(this.opts.port) !== 80))) {\n            return \":\" + this.opts.port;\n        }\n        else {\n            return \"\";\n        }\n    }\n    _query(query) {\n        const encodedQuery = encode(query);\n        return encodedQuery.length ? \"?\" + encodedQuery : \"\";\n    }\n}\n", "// imported from https://github.com/unshiftio/yeast\n'use strict';\nconst alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split(''), length = 64, map = {};\nlet seed = 0, i = 0, prev;\n/**\n * Return a string representing the specified number.\n *\n * @param {Number} num The number to convert.\n * @returns {String} The string representation of the number.\n * @api public\n */\nexport function encode(num) {\n    let encoded = '';\n    do {\n        encoded = alphabet[num % length] + encoded;\n        num = Math.floor(num / length);\n    } while (num > 0);\n    return encoded;\n}\n/**\n * Return the integer value specified by the given string.\n *\n * @param {String} str The string to convert.\n * @returns {Number} The integer value represented by the string.\n * @api public\n */\nexport function decode(str) {\n    let decoded = 0;\n    for (i = 0; i < str.length; i++) {\n        decoded = decoded * length + map[str.charAt(i)];\n    }\n    return decoded;\n}\n/**\n * Yeast: A tiny growing id generator.\n *\n * @returns {String} A unique id.\n * @api public\n */\nexport function yeast() {\n    const now = encode(+new Date());\n    if (now !== prev)\n        return seed = 0, prev = now;\n    return now + '.' + encode(seed++);\n}\n//\n// Map each character to its index.\n//\nfor (; i < length; i++)\n    map[alphabet[i]] = i;\n", "// imported from https://github.com/component/has-cors\nlet value = false;\ntry {\n    value = typeof XMLHttpRequest !== 'undefined' &&\n        'withCredentials' in new XMLHttpRequest();\n}\ncatch (err) {\n    // if XMLHttp support is disabled in IE then it will throw\n    // when trying to create\n}\nexport const hasCORS = value;\n", "// browser shim for xmlhttprequest module\nimport { hasCORS } from \"../contrib/has-cors.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nexport function XHR(opts) {\n    const xdomain = opts.xdomain;\n    // XMLHttpRequest can be disabled on IE\n    try {\n        if (\"undefined\" !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {\n            return new XMLHttpRequest();\n        }\n    }\n    catch (e) { }\n    if (!xdomain) {\n        try {\n            return new globalThis[[\"Active\"].concat(\"Object\").join(\"X\")](\"Microsoft.XMLHTTP\");\n        }\n        catch (e) { }\n    }\n}\nexport function createCookieJar() { }\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { encodePayload, decodePayload } from \"engine.io-parser\";\nimport { createCookieJar, XHR as XMLHttpRequest, } from \"./xmlhttprequest.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions, pick } from \"../util.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nfunction empty() { }\nconst hasXHR2 = (function () {\n    const xhr = new XMLHttpRequest({\n        xdomain: false,\n    });\n    return null != xhr.responseType;\n})();\nexport class Polling extends Transport {\n    /**\n     * XHR Polling constructor.\n     *\n     * @param {Object} opts\n     * @package\n     */\n    constructor(opts) {\n        super(opts);\n        this.polling = false;\n        if (typeof location !== \"undefined\") {\n            const isSSL = \"https:\" === location.protocol;\n            let port = location.port;\n            // some user agents have empty `location.port`\n            if (!port) {\n                port = isSSL ? \"443\" : \"80\";\n            }\n            this.xd =\n                (typeof location !== \"undefined\" &&\n                    opts.hostname !== location.hostname) ||\n                    port !== opts.port;\n        }\n        /**\n         * XHR supports binary\n         */\n        const forceBase64 = opts && opts.forceBase64;\n        this.supportsBinary = hasXHR2 && !forceBase64;\n        if (this.opts.withCredentials) {\n            this.cookieJar = createCookieJar();\n        }\n    }\n    get name() {\n        return \"polling\";\n    }\n    /**\n     * Opens the socket (triggers polling). We write a PING message to determine\n     * when the transport is open.\n     *\n     * @protected\n     */\n    doOpen() {\n        this.poll();\n    }\n    /**\n     * Pauses polling.\n     *\n     * @param {Function} onPause - callback upon buffers are flushed and transport is paused\n     * @package\n     */\n    pause(onPause) {\n        this.readyState = \"pausing\";\n        const pause = () => {\n            this.readyState = \"paused\";\n            onPause();\n        };\n        if (this.polling || !this.writable) {\n            let total = 0;\n            if (this.polling) {\n                total++;\n                this.once(\"pollComplete\", function () {\n                    --total || pause();\n                });\n            }\n            if (!this.writable) {\n                total++;\n                this.once(\"drain\", function () {\n                    --total || pause();\n                });\n            }\n        }\n        else {\n            pause();\n        }\n    }\n    /**\n     * Starts polling cycle.\n     *\n     * @private\n     */\n    poll() {\n        this.polling = true;\n        this.doPoll();\n        this.emitReserved(\"poll\");\n    }\n    /**\n     * Overloads onData to detect payloads.\n     *\n     * @protected\n     */\n    onData(data) {\n        const callback = (packet) => {\n            // if its the first message we consider the transport open\n            if (\"opening\" === this.readyState && packet.type === \"open\") {\n                this.onOpen();\n            }\n            // if its a close packet, we close the ongoing requests\n            if (\"close\" === packet.type) {\n                this.onClose({ description: \"transport closed by the server\" });\n                return false;\n            }\n            // otherwise bypass onData and handle the message\n            this.onPacket(packet);\n        };\n        // decode payload\n        decodePayload(data, this.socket.binaryType).forEach(callback);\n        // if an event did not trigger closing\n        if (\"closed\" !== this.readyState) {\n            // if we got data we're not polling\n            this.polling = false;\n            this.emitReserved(\"pollComplete\");\n            if (\"open\" === this.readyState) {\n                this.poll();\n            }\n            else {\n            }\n        }\n    }\n    /**\n     * For polling, send a close packet.\n     *\n     * @protected\n     */\n    doClose() {\n        const close = () => {\n            this.write([{ type: \"close\" }]);\n        };\n        if (\"open\" === this.readyState) {\n            close();\n        }\n        else {\n            // in case we're trying to close while\n            // handshaking is in progress (GH-164)\n            this.once(\"open\", close);\n        }\n    }\n    /**\n     * Writes a packets payload.\n     *\n     * @param {Array} packets - data packets\n     * @protected\n     */\n    write(packets) {\n        this.writable = false;\n        encodePayload(packets, (data) => {\n            this.doWrite(data, () => {\n                this.writable = true;\n                this.emitReserved(\"drain\");\n            });\n        });\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"https\" : \"http\";\n        const query = this.query || {};\n        // cache busting is forced\n        if (false !== this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        if (!this.supportsBinary && !query.sid) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Creates a request.\n     *\n     * @param {String} method\n     * @private\n     */\n    request(opts = {}) {\n        Object.assign(opts, { xd: this.xd, cookieJar: this.cookieJar }, this.opts);\n        return new Request(this.uri(), opts);\n    }\n    /**\n     * Sends data.\n     *\n     * @param {String} data to send.\n     * @param {Function} called upon flush.\n     * @private\n     */\n    doWrite(data, fn) {\n        const req = this.request({\n            method: \"POST\",\n            data: data,\n        });\n        req.on(\"success\", fn);\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr post error\", xhrStatus, context);\n        });\n    }\n    /**\n     * Starts a poll cycle.\n     *\n     * @private\n     */\n    doPoll() {\n        const req = this.request();\n        req.on(\"data\", this.onData.bind(this));\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr poll error\", xhrStatus, context);\n        });\n        this.pollXhr = req;\n    }\n}\nexport class Request extends Emitter {\n    /**\n     * Request constructor\n     *\n     * @param {Object} options\n     * @package\n     */\n    constructor(uri, opts) {\n        super();\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.method = opts.method || \"GET\";\n        this.uri = uri;\n        this.data = undefined !== opts.data ? opts.data : null;\n        this.create();\n    }\n    /**\n     * Creates the XHR object and sends the request.\n     *\n     * @private\n     */\n    create() {\n        var _a;\n        const opts = pick(this.opts, \"agent\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"autoUnref\");\n        opts.xdomain = !!this.opts.xd;\n        const xhr = (this.xhr = new XMLHttpRequest(opts));\n        try {\n            xhr.open(this.method, this.uri, true);\n            try {\n                if (this.opts.extraHeaders) {\n                    xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);\n                    for (let i in this.opts.extraHeaders) {\n                        if (this.opts.extraHeaders.hasOwnProperty(i)) {\n                            xhr.setRequestHeader(i, this.opts.extraHeaders[i]);\n                        }\n                    }\n                }\n            }\n            catch (e) { }\n            if (\"POST\" === this.method) {\n                try {\n                    xhr.setRequestHeader(\"Content-type\", \"text/plain;charset=UTF-8\");\n                }\n                catch (e) { }\n            }\n            try {\n                xhr.setRequestHeader(\"Accept\", \"*/*\");\n            }\n            catch (e) { }\n            (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.addCookies(xhr);\n            // ie6 check\n            if (\"withCredentials\" in xhr) {\n                xhr.withCredentials = this.opts.withCredentials;\n            }\n            if (this.opts.requestTimeout) {\n                xhr.timeout = this.opts.requestTimeout;\n            }\n            xhr.onreadystatechange = () => {\n                var _a;\n                if (xhr.readyState === 3) {\n                    (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.parseCookies(xhr);\n                }\n                if (4 !== xhr.readyState)\n                    return;\n                if (200 === xhr.status || 1223 === xhr.status) {\n                    this.onLoad();\n                }\n                else {\n                    // make sure the `error` event handler that's user-set\n                    // does not throw in the same tick and gets caught here\n                    this.setTimeoutFn(() => {\n                        this.onError(typeof xhr.status === \"number\" ? xhr.status : 0);\n                    }, 0);\n                }\n            };\n            xhr.send(this.data);\n        }\n        catch (e) {\n            // Need to defer since .create() is called directly from the constructor\n            // and thus the 'error' event can only be only bound *after* this exception\n            // occurs.  Therefore, also, we cannot throw here at all.\n            this.setTimeoutFn(() => {\n                this.onError(e);\n            }, 0);\n            return;\n        }\n        if (typeof document !== \"undefined\") {\n            this.index = Request.requestsCount++;\n            Request.requests[this.index] = this;\n        }\n    }\n    /**\n     * Called upon error.\n     *\n     * @private\n     */\n    onError(err) {\n        this.emitReserved(\"error\", err, this.xhr);\n        this.cleanup(true);\n    }\n    /**\n     * Cleans up house.\n     *\n     * @private\n     */\n    cleanup(fromError) {\n        if (\"undefined\" === typeof this.xhr || null === this.xhr) {\n            return;\n        }\n        this.xhr.onreadystatechange = empty;\n        if (fromError) {\n            try {\n                this.xhr.abort();\n            }\n            catch (e) { }\n        }\n        if (typeof document !== \"undefined\") {\n            delete Request.requests[this.index];\n        }\n        this.xhr = null;\n    }\n    /**\n     * Called upon load.\n     *\n     * @private\n     */\n    onLoad() {\n        const data = this.xhr.responseText;\n        if (data !== null) {\n            this.emitReserved(\"data\", data);\n            this.emitReserved(\"success\");\n            this.cleanup();\n        }\n    }\n    /**\n     * Aborts the request.\n     *\n     * @package\n     */\n    abort() {\n        this.cleanup();\n    }\n}\nRequest.requestsCount = 0;\nRequest.requests = {};\n/**\n * Aborts pending requests when unloading the window. This is needed to prevent\n * memory leaks (e.g. when using IE) and to ensure that no spurious error is\n * emitted.\n */\nif (typeof document !== \"undefined\") {\n    // @ts-ignore\n    if (typeof attachEvent === \"function\") {\n        // @ts-ignore\n        attachEvent(\"onunload\", unloadHandler);\n    }\n    else if (typeof addEventListener === \"function\") {\n        const terminationEvent = \"onpagehide\" in globalThis ? \"pagehide\" : \"unload\";\n        addEventListener(terminationEvent, unloadHandler, false);\n    }\n}\nfunction unloadHandler() {\n    for (let i in Request.requests) {\n        if (Request.requests.hasOwnProperty(i)) {\n            Request.requests[i].abort();\n        }\n    }\n}\n", "import { globalThisShim as globalThis } from \"../globalThis.js\";\nexport const nextTick = (() => {\n    const isPromiseAvailable = typeof Promise === \"function\" && typeof Promise.resolve === \"function\";\n    if (isPromiseAvailable) {\n        return (cb) => Promise.resolve().then(cb);\n    }\n    else {\n        return (cb, setTimeoutFn) => setTimeoutFn(cb, 0);\n    }\n})();\nexport const WebSocket = globalThis.WebSocket || globalThis.MozWebSocket;\nexport const usingBrowserWebSocket = true;\nexport const defaultBinaryType = \"arraybuffer\";\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { pick } from \"../util.js\";\nimport { nextTick, usingBrowserWebSocket, WebSocket, } from \"./websocket-constructor.js\";\nimport { encodePacket } from \"engine.io-parser\";\n// detect ReactNative environment\nconst isReactNative = typeof navigator !== \"undefined\" &&\n    typeof navigator.product === \"string\" &&\n    navigator.product.toLowerCase() === \"reactnative\";\nexport class WS extends Transport {\n    /**\n     * WebSocket transport constructor.\n     *\n     * @param {Object} opts - connection options\n     * @protected\n     */\n    constructor(opts) {\n        super(opts);\n        this.supportsBinary = !opts.forceBase64;\n    }\n    get name() {\n        return \"websocket\";\n    }\n    doOpen() {\n        if (!this.check()) {\n            // let probe timeout\n            return;\n        }\n        const uri = this.uri();\n        const protocols = this.opts.protocols;\n        // React Native only supports the 'headers' option, and will print a warning if anything else is passed\n        const opts = isReactNative\n            ? {}\n            : pick(this.opts, \"agent\", \"perMessageDeflate\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"localAddress\", \"protocolVersion\", \"origin\", \"maxPayload\", \"family\", \"checkServerIdentity\");\n        if (this.opts.extraHeaders) {\n            opts.headers = this.opts.extraHeaders;\n        }\n        try {\n            this.ws =\n                usingBrowserWebSocket && !isReactNative\n                    ? protocols\n                        ? new WebSocket(uri, protocols)\n                        : new WebSocket(uri)\n                    : new WebSocket(uri, protocols, opts);\n        }\n        catch (err) {\n            return this.emitReserved(\"error\", err);\n        }\n        this.ws.binaryType = this.socket.binaryType;\n        this.addEventListeners();\n    }\n    /**\n     * Adds event listeners to the socket\n     *\n     * @private\n     */\n    addEventListeners() {\n        this.ws.onopen = () => {\n            if (this.opts.autoUnref) {\n                this.ws._socket.unref();\n            }\n            this.onOpen();\n        };\n        this.ws.onclose = (closeEvent) => this.onClose({\n            description: \"websocket connection closed\",\n            context: closeEvent,\n        });\n        this.ws.onmessage = (ev) => this.onData(ev.data);\n        this.ws.onerror = (e) => this.onError(\"websocket error\", e);\n    }\n    write(packets) {\n        this.writable = false;\n        // encodePacket efficient as it uses WS framing\n        // no need for encodePayload\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            encodePacket(packet, this.supportsBinary, (data) => {\n                // always create a new object (GH-437)\n                const opts = {};\n                if (!usingBrowserWebSocket) {\n                    if (packet.options) {\n                        opts.compress = packet.options.compress;\n                    }\n                    if (this.opts.perMessageDeflate) {\n                        const len = \n                        // @ts-ignore\n                        \"string\" === typeof data ? Buffer.byteLength(data) : data.length;\n                        if (len < this.opts.perMessageDeflate.threshold) {\n                            opts.compress = false;\n                        }\n                    }\n                }\n                // Sometimes the websocket has already been closed but the browser didn't\n                // have a chance of informing us about it yet, in that case send will\n                // throw an error\n                try {\n                    if (usingBrowserWebSocket) {\n                        // TypeError is thrown when passing the second argument on Safari\n                        this.ws.send(data);\n                    }\n                    else {\n                        this.ws.send(data, opts);\n                    }\n                }\n                catch (e) {\n                }\n                if (lastPacket) {\n                    // fake drain\n                    // defer to next tick to allow Socket to clear writeBuffer\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        if (typeof this.ws !== \"undefined\") {\n            this.ws.close();\n            this.ws = null;\n        }\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"wss\" : \"ws\";\n        const query = this.query || {};\n        // append timestamp to URI\n        if (this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        // communicate binary support capabilities\n        if (!this.supportsBinary) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Feature detection for WebSocket.\n     *\n     * @return {Boolean} whether this transport is available.\n     * @private\n     */\n    check() {\n        return !!WebSocket;\n    }\n}\n", "import { Transport } from \"../transport.js\";\nimport { nextTick } from \"./websocket-constructor.js\";\nimport { createPacketDecoderStream, createPacketEncoderStream, } from \"engine.io-parser\";\nexport class WT extends Transport {\n    get name() {\n        return \"webtransport\";\n    }\n    doOpen() {\n        // @ts-ignore\n        if (typeof WebTransport !== \"function\") {\n            return;\n        }\n        // @ts-ignore\n        this.transport = new WebTransport(this.createUri(\"https\"), this.opts.transportOptions[this.name]);\n        this.transport.closed\n            .then(() => {\n            this.onClose();\n        })\n            .catch((err) => {\n            this.onError(\"webtransport error\", err);\n        });\n        // note: we could have used async/await, but that would require some additional polyfills\n        this.transport.ready.then(() => {\n            this.transport.createBidirectionalStream().then((stream) => {\n                const decoderStream = createPacketDecoderStream(Number.MAX_SAFE_INTEGER, this.socket.binaryType);\n                const reader = stream.readable.pipeThrough(decoderStream).getReader();\n                const encoderStream = createPacketEncoderStream();\n                encoderStream.readable.pipeTo(stream.writable);\n                this.writer = encoderStream.writable.getWriter();\n                const read = () => {\n                    reader\n                        .read()\n                        .then(({ done, value }) => {\n                        if (done) {\n                            return;\n                        }\n                        this.onPacket(value);\n                        read();\n                    })\n                        .catch((err) => {\n                    });\n                };\n                read();\n                const packet = { type: \"open\" };\n                if (this.query.sid) {\n                    packet.data = `{\"sid\":\"${this.query.sid}\"}`;\n                }\n                this.writer.write(packet).then(() => this.onOpen());\n            });\n        });\n    }\n    write(packets) {\n        this.writable = false;\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            this.writer.write(packet).then(() => {\n                if (lastPacket) {\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        var _a;\n        (_a = this.transport) === null || _a === void 0 ? void 0 : _a.close();\n    }\n}\n", "import { Polling } from \"./polling.js\";\nimport { WS } from \"./websocket.js\";\nimport { WT } from \"./webtransport.js\";\nexport const transports = {\n    websocket: WS,\n    webtransport: WT,\n    polling: Polling,\n};\n", "// imported from https://github.com/galkn/parseuri\n/**\n * Parses a URI\n *\n * Note: we could also have used the built-in URL object, but it isn't supported on all platforms.\n *\n * See:\n * - https://developer.mozilla.org/en-US/docs/Web/API/URL\n * - https://caniuse.com/url\n * - https://www.rfc-editor.org/rfc/rfc3986#appendix-B\n *\n * History of the parse() method:\n * - first commit: https://github.com/socketio/socket.io-client/commit/4ee1d5d94b3906a9c052b459f1a818b15f38f91c\n * - export into its own module: https://github.com/socketio/engine.io-client/commit/de2c561e4564efeb78f1bdb1ba39ef81b2822cb3\n * - reimport: https://github.com/socketio/engine.io-client/commit/df32277c3f6d622eec5ed09f493cae3f3391d242\n *\n * @author Steven Levithan <stevenlevithan.com> (MIT license)\n * @api private\n */\nconst re = /^(?:(?![^:@\\/?#]+:[^:@\\/]*@)(http|https|ws|wss):\\/\\/)?((?:(([^:@\\/?#]*)(?::([^:@\\/?#]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\\/?#]*)(?::(\\d*))?)(((\\/(?:[^?#](?![^?#\\/]*\\.[^?#\\/.]+(?:[?#]|$)))*\\/?)?([^?#\\/]*))(?:\\?([^#]*))?(?:#(.*))?)/;\nconst parts = [\n    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'\n];\nexport function parse(str) {\n    if (str.length > 2000) {\n        throw \"URI too long\";\n    }\n    const src = str, b = str.indexOf('['), e = str.indexOf(']');\n    if (b != -1 && e != -1) {\n        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);\n    }\n    let m = re.exec(str || ''), uri = {}, i = 14;\n    while (i--) {\n        uri[parts[i]] = m[i] || '';\n    }\n    if (b != -1 && e != -1) {\n        uri.source = src;\n        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');\n        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');\n        uri.ipv6uri = true;\n    }\n    uri.pathNames = pathNames(uri, uri['path']);\n    uri.queryKey = queryKey(uri, uri['query']);\n    return uri;\n}\nfunction pathNames(obj, path) {\n    const regx = /\\/{2,9}/g, names = path.replace(regx, \"/\").split(\"/\");\n    if (path.slice(0, 1) == '/' || path.length === 0) {\n        names.splice(0, 1);\n    }\n    if (path.slice(-1) == '/') {\n        names.splice(names.length - 1, 1);\n    }\n    return names;\n}\nfunction queryKey(uri, query) {\n    const data = {};\n    query.replace(/(?:^|&)([^&=]*)=?([^&]*)/g, function ($0, $1, $2) {\n        if ($1) {\n            data[$1] = $2;\n        }\n    });\n    return data;\n}\n", "import { transports } from \"./transports/index.js\";\nimport { installTimerFunctions, byteLength } from \"./util.js\";\nimport { decode } from \"./contrib/parseqs.js\";\nimport { parse } from \"./contrib/parseuri.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { protocol } from \"engine.io-parser\";\nimport { defaultBinaryType } from \"./transports/websocket-constructor.js\";\nexport class Socket extends Emitter {\n    /**\n     * Socket constructor.\n     *\n     * @param {String|Object} uri - uri or options\n     * @param {Object} opts - options\n     */\n    constructor(uri, opts = {}) {\n        super();\n        this.binaryType = defaultBinaryType;\n        this.writeBuffer = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = null;\n        }\n        if (uri) {\n            uri = parse(uri);\n            opts.hostname = uri.host;\n            opts.secure = uri.protocol === \"https\" || uri.protocol === \"wss\";\n            opts.port = uri.port;\n            if (uri.query)\n                opts.query = uri.query;\n        }\n        else if (opts.host) {\n            opts.hostname = parse(opts.host).host;\n        }\n        installTimerFunctions(this, opts);\n        this.secure =\n            null != opts.secure\n                ? opts.secure\n                : typeof location !== \"undefined\" && \"https:\" === location.protocol;\n        if (opts.hostname && !opts.port) {\n            // if no port is specified manually, use the protocol default\n            opts.port = this.secure ? \"443\" : \"80\";\n        }\n        this.hostname =\n            opts.hostname ||\n                (typeof location !== \"undefined\" ? location.hostname : \"localhost\");\n        this.port =\n            opts.port ||\n                (typeof location !== \"undefined\" && location.port\n                    ? location.port\n                    : this.secure\n                        ? \"443\"\n                        : \"80\");\n        this.transports = opts.transports || [\n            \"polling\",\n            \"websocket\",\n            \"webtransport\",\n        ];\n        this.writeBuffer = [];\n        this.prevBufferLen = 0;\n        this.opts = Object.assign({\n            path: \"/engine.io\",\n            agent: false,\n            withCredentials: false,\n            upgrade: true,\n            timestampParam: \"t\",\n            rememberUpgrade: false,\n            addTrailingSlash: true,\n            rejectUnauthorized: true,\n            perMessageDeflate: {\n                threshold: 1024,\n            },\n            transportOptions: {},\n            closeOnBeforeunload: false,\n        }, opts);\n        this.opts.path =\n            this.opts.path.replace(/\\/$/, \"\") +\n                (this.opts.addTrailingSlash ? \"/\" : \"\");\n        if (typeof this.opts.query === \"string\") {\n            this.opts.query = decode(this.opts.query);\n        }\n        // set on handshake\n        this.id = null;\n        this.upgrades = null;\n        this.pingInterval = null;\n        this.pingTimeout = null;\n        // set on heartbeat\n        this.pingTimeoutTimer = null;\n        if (typeof addEventListener === \"function\") {\n            if (this.opts.closeOnBeforeunload) {\n                // Firefox closes the connection when the \"beforeunload\" event is emitted but not Chrome. This event listener\n                // ensures every browser behaves the same (no \"disconnect\" event at the Socket.IO level when the page is\n                // closed/reloaded)\n                this.beforeunloadEventListener = () => {\n                    if (this.transport) {\n                        // silently close the transport\n                        this.transport.removeAllListeners();\n                        this.transport.close();\n                    }\n                };\n                addEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n            }\n            if (this.hostname !== \"localhost\") {\n                this.offlineEventListener = () => {\n                    this.onClose(\"transport close\", {\n                        description: \"network connection lost\",\n                    });\n                };\n                addEventListener(\"offline\", this.offlineEventListener, false);\n            }\n        }\n        this.open();\n    }\n    /**\n     * Creates transport of the given type.\n     *\n     * @param {String} name - transport name\n     * @return {Transport}\n     * @private\n     */\n    createTransport(name) {\n        const query = Object.assign({}, this.opts.query);\n        // append engine.io protocol identifier\n        query.EIO = protocol;\n        // transport name\n        query.transport = name;\n        // session id if we already have one\n        if (this.id)\n            query.sid = this.id;\n        const opts = Object.assign({}, this.opts, {\n            query,\n            socket: this,\n            hostname: this.hostname,\n            secure: this.secure,\n            port: this.port,\n        }, this.opts.transportOptions[name]);\n        return new transports[name](opts);\n    }\n    /**\n     * Initializes transport to use and starts probe.\n     *\n     * @private\n     */\n    open() {\n        let transport;\n        if (this.opts.rememberUpgrade &&\n            Socket.priorWebsocketSuccess &&\n            this.transports.indexOf(\"websocket\") !== -1) {\n            transport = \"websocket\";\n        }\n        else if (0 === this.transports.length) {\n            // Emit error on next tick so it can be listened to\n            this.setTimeoutFn(() => {\n                this.emitReserved(\"error\", \"No transports available\");\n            }, 0);\n            return;\n        }\n        else {\n            transport = this.transports[0];\n        }\n        this.readyState = \"opening\";\n        // Retry with the next transport if the transport is disabled (jsonp: false)\n        try {\n            transport = this.createTransport(transport);\n        }\n        catch (e) {\n            this.transports.shift();\n            this.open();\n            return;\n        }\n        transport.open();\n        this.setTransport(transport);\n    }\n    /**\n     * Sets the current transport. Disables the existing one (if any).\n     *\n     * @private\n     */\n    setTransport(transport) {\n        if (this.transport) {\n            this.transport.removeAllListeners();\n        }\n        // set up transport\n        this.transport = transport;\n        // set up transport listeners\n        transport\n            .on(\"drain\", this.onDrain.bind(this))\n            .on(\"packet\", this.onPacket.bind(this))\n            .on(\"error\", this.onError.bind(this))\n            .on(\"close\", (reason) => this.onClose(\"transport close\", reason));\n    }\n    /**\n     * Probes a transport.\n     *\n     * @param {String} name - transport name\n     * @private\n     */\n    probe(name) {\n        let transport = this.createTransport(name);\n        let failed = false;\n        Socket.priorWebsocketSuccess = false;\n        const onTransportOpen = () => {\n            if (failed)\n                return;\n            transport.send([{ type: \"ping\", data: \"probe\" }]);\n            transport.once(\"packet\", (msg) => {\n                if (failed)\n                    return;\n                if (\"pong\" === msg.type && \"probe\" === msg.data) {\n                    this.upgrading = true;\n                    this.emitReserved(\"upgrading\", transport);\n                    if (!transport)\n                        return;\n                    Socket.priorWebsocketSuccess = \"websocket\" === transport.name;\n                    this.transport.pause(() => {\n                        if (failed)\n                            return;\n                        if (\"closed\" === this.readyState)\n                            return;\n                        cleanup();\n                        this.setTransport(transport);\n                        transport.send([{ type: \"upgrade\" }]);\n                        this.emitReserved(\"upgrade\", transport);\n                        transport = null;\n                        this.upgrading = false;\n                        this.flush();\n                    });\n                }\n                else {\n                    const err = new Error(\"probe error\");\n                    // @ts-ignore\n                    err.transport = transport.name;\n                    this.emitReserved(\"upgradeError\", err);\n                }\n            });\n        };\n        function freezeTransport() {\n            if (failed)\n                return;\n            // Any callback called by transport should be ignored since now\n            failed = true;\n            cleanup();\n            transport.close();\n            transport = null;\n        }\n        // Handle any error that happens while probing\n        const onerror = (err) => {\n            const error = new Error(\"probe error: \" + err);\n            // @ts-ignore\n            error.transport = transport.name;\n            freezeTransport();\n            this.emitReserved(\"upgradeError\", error);\n        };\n        function onTransportClose() {\n            onerror(\"transport closed\");\n        }\n        // When the socket is closed while we're probing\n        function onclose() {\n            onerror(\"socket closed\");\n        }\n        // When the socket is upgraded while we're probing\n        function onupgrade(to) {\n            if (transport && to.name !== transport.name) {\n                freezeTransport();\n            }\n        }\n        // Remove all listeners on the transport and on self\n        const cleanup = () => {\n            transport.removeListener(\"open\", onTransportOpen);\n            transport.removeListener(\"error\", onerror);\n            transport.removeListener(\"close\", onTransportClose);\n            this.off(\"close\", onclose);\n            this.off(\"upgrading\", onupgrade);\n        };\n        transport.once(\"open\", onTransportOpen);\n        transport.once(\"error\", onerror);\n        transport.once(\"close\", onTransportClose);\n        this.once(\"close\", onclose);\n        this.once(\"upgrading\", onupgrade);\n        if (this.upgrades.indexOf(\"webtransport\") !== -1 &&\n            name !== \"webtransport\") {\n            // favor WebTransport\n            this.setTimeoutFn(() => {\n                if (!failed) {\n                    transport.open();\n                }\n            }, 200);\n        }\n        else {\n            transport.open();\n        }\n    }\n    /**\n     * Called when connection is deemed open.\n     *\n     * @private\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        Socket.priorWebsocketSuccess = \"websocket\" === this.transport.name;\n        this.emitReserved(\"open\");\n        this.flush();\n        // we check for `readyState` in case an `open`\n        // listener already closed the socket\n        if (\"open\" === this.readyState && this.opts.upgrade) {\n            let i = 0;\n            const l = this.upgrades.length;\n            for (; i < l; i++) {\n                this.probe(this.upgrades[i]);\n            }\n        }\n    }\n    /**\n     * Handles a packet.\n     *\n     * @private\n     */\n    onPacket(packet) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            this.emitReserved(\"packet\", packet);\n            // Socket is live - any packet counts\n            this.emitReserved(\"heartbeat\");\n            this.resetPingTimeout();\n            switch (packet.type) {\n                case \"open\":\n                    this.onHandshake(JSON.parse(packet.data));\n                    break;\n                case \"ping\":\n                    this.sendPacket(\"pong\");\n                    this.emitReserved(\"ping\");\n                    this.emitReserved(\"pong\");\n                    break;\n                case \"error\":\n                    const err = new Error(\"server error\");\n                    // @ts-ignore\n                    err.code = packet.data;\n                    this.onError(err);\n                    break;\n                case \"message\":\n                    this.emitReserved(\"data\", packet.data);\n                    this.emitReserved(\"message\", packet.data);\n                    break;\n            }\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon handshake completion.\n     *\n     * @param {Object} data - handshake obj\n     * @private\n     */\n    onHandshake(data) {\n        this.emitReserved(\"handshake\", data);\n        this.id = data.sid;\n        this.transport.query.sid = data.sid;\n        this.upgrades = this.filterUpgrades(data.upgrades);\n        this.pingInterval = data.pingInterval;\n        this.pingTimeout = data.pingTimeout;\n        this.maxPayload = data.maxPayload;\n        this.onOpen();\n        // In case open handler closes socket\n        if (\"closed\" === this.readyState)\n            return;\n        this.resetPingTimeout();\n    }\n    /**\n     * Sets and resets ping timeout timer based on server pings.\n     *\n     * @private\n     */\n    resetPingTimeout() {\n        this.clearTimeoutFn(this.pingTimeoutTimer);\n        this.pingTimeoutTimer = this.setTimeoutFn(() => {\n            this.onClose(\"ping timeout\");\n        }, this.pingInterval + this.pingTimeout);\n        if (this.opts.autoUnref) {\n            this.pingTimeoutTimer.unref();\n        }\n    }\n    /**\n     * Called on `drain` event\n     *\n     * @private\n     */\n    onDrain() {\n        this.writeBuffer.splice(0, this.prevBufferLen);\n        // setting prevBufferLen = 0 is very important\n        // for example, when upgrading, upgrade packet is sent over,\n        // and a nonzero prevBufferLen could cause problems on `drain`\n        this.prevBufferLen = 0;\n        if (0 === this.writeBuffer.length) {\n            this.emitReserved(\"drain\");\n        }\n        else {\n            this.flush();\n        }\n    }\n    /**\n     * Flush write buffers.\n     *\n     * @private\n     */\n    flush() {\n        if (\"closed\" !== this.readyState &&\n            this.transport.writable &&\n            !this.upgrading &&\n            this.writeBuffer.length) {\n            const packets = this.getWritablePackets();\n            this.transport.send(packets);\n            // keep track of current length of writeBuffer\n            // splice writeBuffer and callbackBuffer on `drain`\n            this.prevBufferLen = packets.length;\n            this.emitReserved(\"flush\");\n        }\n    }\n    /**\n     * Ensure the encoded size of the writeBuffer is below the maxPayload value sent by the server (only for HTTP\n     * long-polling)\n     *\n     * @private\n     */\n    getWritablePackets() {\n        const shouldCheckPayloadSize = this.maxPayload &&\n            this.transport.name === \"polling\" &&\n            this.writeBuffer.length > 1;\n        if (!shouldCheckPayloadSize) {\n            return this.writeBuffer;\n        }\n        let payloadSize = 1; // first packet type\n        for (let i = 0; i < this.writeBuffer.length; i++) {\n            const data = this.writeBuffer[i].data;\n            if (data) {\n                payloadSize += byteLength(data);\n            }\n            if (i > 0 && payloadSize > this.maxPayload) {\n                return this.writeBuffer.slice(0, i);\n            }\n            payloadSize += 2; // separator + packet type\n        }\n        return this.writeBuffer;\n    }\n    /**\n     * Sends a message.\n     *\n     * @param {String} msg - message.\n     * @param {Object} options.\n     * @param {Function} callback function.\n     * @return {Socket} for chaining.\n     */\n    write(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    send(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param {String} type: packet type.\n     * @param {String} data.\n     * @param {Object} options.\n     * @param {Function} fn - callback function.\n     * @private\n     */\n    sendPacket(type, data, options, fn) {\n        if (\"function\" === typeof data) {\n            fn = data;\n            data = undefined;\n        }\n        if (\"function\" === typeof options) {\n            fn = options;\n            options = null;\n        }\n        if (\"closing\" === this.readyState || \"closed\" === this.readyState) {\n            return;\n        }\n        options = options || {};\n        options.compress = false !== options.compress;\n        const packet = {\n            type: type,\n            data: data,\n            options: options,\n        };\n        this.emitReserved(\"packetCreate\", packet);\n        this.writeBuffer.push(packet);\n        if (fn)\n            this.once(\"flush\", fn);\n        this.flush();\n    }\n    /**\n     * Closes the connection.\n     */\n    close() {\n        const close = () => {\n            this.onClose(\"forced close\");\n            this.transport.close();\n        };\n        const cleanupAndClose = () => {\n            this.off(\"upgrade\", cleanupAndClose);\n            this.off(\"upgradeError\", cleanupAndClose);\n            close();\n        };\n        const waitForUpgrade = () => {\n            // wait for upgrade to finish since we can't send packets while pausing a transport\n            this.once(\"upgrade\", cleanupAndClose);\n            this.once(\"upgradeError\", cleanupAndClose);\n        };\n        if (\"opening\" === this.readyState || \"open\" === this.readyState) {\n            this.readyState = \"closing\";\n            if (this.writeBuffer.length) {\n                this.once(\"drain\", () => {\n                    if (this.upgrading) {\n                        waitForUpgrade();\n                    }\n                    else {\n                        close();\n                    }\n                });\n            }\n            else if (this.upgrading) {\n                waitForUpgrade();\n            }\n            else {\n                close();\n            }\n        }\n        return this;\n    }\n    /**\n     * Called upon transport error\n     *\n     * @private\n     */\n    onError(err) {\n        Socket.priorWebsocketSuccess = false;\n        this.emitReserved(\"error\", err);\n        this.onClose(\"transport error\", err);\n    }\n    /**\n     * Called upon transport close.\n     *\n     * @private\n     */\n    onClose(reason, description) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            // clear timers\n            this.clearTimeoutFn(this.pingTimeoutTimer);\n            // stop event from firing again for transport\n            this.transport.removeAllListeners(\"close\");\n            // ensure transport won't stay open\n            this.transport.close();\n            // ignore further transport communication\n            this.transport.removeAllListeners();\n            if (typeof removeEventListener === \"function\") {\n                removeEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n                removeEventListener(\"offline\", this.offlineEventListener, false);\n            }\n            // set ready state\n            this.readyState = \"closed\";\n            // clear session id\n            this.id = null;\n            // emit close event\n            this.emitReserved(\"close\", reason, description);\n            // clean buffers after, so users can still\n            // grab the buffers on `close` event\n            this.writeBuffer = [];\n            this.prevBufferLen = 0;\n        }\n    }\n    /**\n     * Filters upgrades, returning only those matching client transports.\n     *\n     * @param {Array} upgrades - server upgrades\n     * @private\n     */\n    filterUpgrades(upgrades) {\n        const filteredUpgrades = [];\n        let i = 0;\n        const j = upgrades.length;\n        for (; i < j; i++) {\n            if (~this.transports.indexOf(upgrades[i]))\n                filteredUpgrades.push(upgrades[i]);\n        }\n        return filteredUpgrades;\n    }\n}\nSocket.protocol = protocol;\n", "import { Socket } from \"./socket.js\";\nexport { Socket };\nexport const protocol = Socket.protocol;\nexport { Transport, TransportError } from \"./transport.js\";\nexport { transports } from \"./transports/index.js\";\nexport { installTimerFunctions } from \"./util.js\";\nexport { parse } from \"./contrib/parseuri.js\";\nexport { nextTick } from \"./transports/websocket-constructor.js\";\n", "import { parse } from \"engine.io-client\";\n/**\n * URL parser.\n *\n * @param uri - url\n * @param path - the request path of the connection\n * @param loc - An object meant to mimic window.location.\n *        Defaults to window.location.\n * @public\n */\nexport function url(uri, path = \"\", loc) {\n    let obj = uri;\n    // default to window.location\n    loc = loc || (typeof location !== \"undefined\" && location);\n    if (null == uri)\n        uri = loc.protocol + \"//\" + loc.host;\n    // relative path support\n    if (typeof uri === \"string\") {\n        if (\"/\" === uri.charAt(0)) {\n            if (\"/\" === uri.charAt(1)) {\n                uri = loc.protocol + uri;\n            }\n            else {\n                uri = loc.host + uri;\n            }\n        }\n        if (!/^(https?|wss?):\\/\\//.test(uri)) {\n            if (\"undefined\" !== typeof loc) {\n                uri = loc.protocol + \"//\" + uri;\n            }\n            else {\n                uri = \"https://\" + uri;\n            }\n        }\n        // parse\n        obj = parse(uri);\n    }\n    // make sure we treat `localhost:80` and `localhost` equally\n    if (!obj.port) {\n        if (/^(http|ws)$/.test(obj.protocol)) {\n            obj.port = \"80\";\n        }\n        else if (/^(http|ws)s$/.test(obj.protocol)) {\n            obj.port = \"443\";\n        }\n    }\n    obj.path = obj.path || \"/\";\n    const ipv6 = obj.host.indexOf(\":\") !== -1;\n    const host = ipv6 ? \"[\" + obj.host + \"]\" : obj.host;\n    // define unique id\n    obj.id = obj.protocol + \"://\" + host + \":\" + obj.port + path;\n    // define href\n    obj.href =\n        obj.protocol +\n            \"://\" +\n            host +\n            (loc && loc.port === obj.port ? \"\" : \":\" + obj.port);\n    return obj;\n}\n", "import { Emitter } from \"@socket.io/component-emitter\";\nimport { deconstructPacket, reconstructPacket } from \"./binary.js\";\nimport { isBinary, hasBinary } from \"./is-binary.js\";\n/**\n * These strings must not be used as event names, as they have a special meaning.\n */\nconst RESERVED_EVENTS = [\n    \"connect\",\n    \"connect_error\",\n    \"disconnect\",\n    \"disconnecting\",\n    \"newListener\",\n    \"removeListener\", // used by the Node.js EventEmitter\n];\n/**\n * Protocol version.\n *\n * @public\n */\nexport const protocol = 5;\nexport var PacketType;\n(function (PacketType) {\n    PacketType[PacketType[\"CONNECT\"] = 0] = \"CONNECT\";\n    PacketType[PacketType[\"DISCONNECT\"] = 1] = \"DISCONNECT\";\n    PacketType[PacketType[\"EVENT\"] = 2] = \"EVENT\";\n    PacketType[PacketType[\"ACK\"] = 3] = \"ACK\";\n    PacketType[PacketType[\"CONNECT_ERROR\"] = 4] = \"CONNECT_ERROR\";\n    PacketType[PacketType[\"BINARY_EVENT\"] = 5] = \"BINARY_EVENT\";\n    PacketType[PacketType[\"BINARY_ACK\"] = 6] = \"BINARY_ACK\";\n})(PacketType || (PacketType = {}));\n/**\n * A socket.io Encoder instance\n */\nexport class Encoder {\n    /**\n     * Encoder constructor\n     *\n     * @param {function} replacer - custom replacer to pass down to JSON.parse\n     */\n    constructor(replacer) {\n        this.replacer = replacer;\n    }\n    /**\n     * Encode a packet as a single string if non-binary, or as a\n     * buffer sequence, depending on packet type.\n     *\n     * @param {Object} obj - packet object\n     */\n    encode(obj) {\n        if (obj.type === PacketType.EVENT || obj.type === PacketType.ACK) {\n            if (hasBinary(obj)) {\n                return this.encodeAsBinary({\n                    type: obj.type === PacketType.EVENT\n                        ? PacketType.BINARY_EVENT\n                        : PacketType.BINARY_ACK,\n                    nsp: obj.nsp,\n                    data: obj.data,\n                    id: obj.id,\n                });\n            }\n        }\n        return [this.encodeAsString(obj)];\n    }\n    /**\n     * Encode packet as string.\n     */\n    encodeAsString(obj) {\n        // first is type\n        let str = \"\" + obj.type;\n        // attachments if we have them\n        if (obj.type === PacketType.BINARY_EVENT ||\n            obj.type === PacketType.BINARY_ACK) {\n            str += obj.attachments + \"-\";\n        }\n        // if we have a namespace other than `/`\n        // we append it followed by a comma `,`\n        if (obj.nsp && \"/\" !== obj.nsp) {\n            str += obj.nsp + \",\";\n        }\n        // immediately followed by the id\n        if (null != obj.id) {\n            str += obj.id;\n        }\n        // json data\n        if (null != obj.data) {\n            str += JSON.stringify(obj.data, this.replacer);\n        }\n        return str;\n    }\n    /**\n     * Encode packet as 'buffer sequence' by removing blobs, and\n     * deconstructing packet into object with placeholders and\n     * a list of buffers.\n     */\n    encodeAsBinary(obj) {\n        const deconstruction = deconstructPacket(obj);\n        const pack = this.encodeAsString(deconstruction.packet);\n        const buffers = deconstruction.buffers;\n        buffers.unshift(pack); // add packet info to beginning of data list\n        return buffers; // write all the buffers\n    }\n}\n// see https://stackoverflow.com/questions/8511281/check-if-a-value-is-an-object-in-javascript\nfunction isObject(value) {\n    return Object.prototype.toString.call(value) === \"[object Object]\";\n}\n/**\n * A socket.io Decoder instance\n *\n * @return {Object} decoder\n */\nexport class Decoder extends Emitter {\n    /**\n     * Decoder constructor\n     *\n     * @param {function} reviver - custom reviver to pass down to JSON.stringify\n     */\n    constructor(reviver) {\n        super();\n        this.reviver = reviver;\n    }\n    /**\n     * Decodes an encoded packet string into packet JSON.\n     *\n     * @param {String} obj - encoded packet\n     */\n    add(obj) {\n        let packet;\n        if (typeof obj === \"string\") {\n            if (this.reconstructor) {\n                throw new Error(\"got plaintext data when reconstructing a packet\");\n            }\n            packet = this.decodeString(obj);\n            const isBinaryEvent = packet.type === PacketType.BINARY_EVENT;\n            if (isBinaryEvent || packet.type === PacketType.BINARY_ACK) {\n                packet.type = isBinaryEvent ? PacketType.EVENT : PacketType.ACK;\n                // binary packet's json\n                this.reconstructor = new BinaryReconstructor(packet);\n                // no attachments, labeled binary but no binary data to follow\n                if (packet.attachments === 0) {\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n            else {\n                // non-binary full packet\n                super.emitReserved(\"decoded\", packet);\n            }\n        }\n        else if (isBinary(obj) || obj.base64) {\n            // raw binary data\n            if (!this.reconstructor) {\n                throw new Error(\"got binary data when not reconstructing a packet\");\n            }\n            else {\n                packet = this.reconstructor.takeBinaryData(obj);\n                if (packet) {\n                    // received final buffer\n                    this.reconstructor = null;\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n        }\n        else {\n            throw new Error(\"Unknown type: \" + obj);\n        }\n    }\n    /**\n     * Decode a packet String (JSON data)\n     *\n     * @param {String} str\n     * @return {Object} packet\n     */\n    decodeString(str) {\n        let i = 0;\n        // look up type\n        const p = {\n            type: Number(str.charAt(0)),\n        };\n        if (PacketType[p.type] === undefined) {\n            throw new Error(\"unknown packet type \" + p.type);\n        }\n        // look up attachments if type binary\n        if (p.type === PacketType.BINARY_EVENT ||\n            p.type === PacketType.BINARY_ACK) {\n            const start = i + 1;\n            while (str.charAt(++i) !== \"-\" && i != str.length) { }\n            const buf = str.substring(start, i);\n            if (buf != Number(buf) || str.charAt(i) !== \"-\") {\n                throw new Error(\"Illegal attachments\");\n            }\n            p.attachments = Number(buf);\n        }\n        // look up namespace (if any)\n        if (\"/\" === str.charAt(i + 1)) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (\",\" === c)\n                    break;\n                if (i === str.length)\n                    break;\n            }\n            p.nsp = str.substring(start, i);\n        }\n        else {\n            p.nsp = \"/\";\n        }\n        // look up id\n        const next = str.charAt(i + 1);\n        if (\"\" !== next && Number(next) == next) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (null == c || Number(c) != c) {\n                    --i;\n                    break;\n                }\n                if (i === str.length)\n                    break;\n            }\n            p.id = Number(str.substring(start, i + 1));\n        }\n        // look up json data\n        if (str.charAt(++i)) {\n            const payload = this.tryParse(str.substr(i));\n            if (Decoder.isPayloadValid(p.type, payload)) {\n                p.data = payload;\n            }\n            else {\n                throw new Error(\"invalid payload\");\n            }\n        }\n        return p;\n    }\n    tryParse(str) {\n        try {\n            return JSON.parse(str, this.reviver);\n        }\n        catch (e) {\n            return false;\n        }\n    }\n    static isPayloadValid(type, payload) {\n        switch (type) {\n            case PacketType.CONNECT:\n                return isObject(payload);\n            case PacketType.DISCONNECT:\n                return payload === undefined;\n            case PacketType.CONNECT_ERROR:\n                return typeof payload === \"string\" || isObject(payload);\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                return (Array.isArray(payload) &&\n                    (typeof payload[0] === \"number\" ||\n                        (typeof payload[0] === \"string\" &&\n                            RESERVED_EVENTS.indexOf(payload[0]) === -1)));\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                return Array.isArray(payload);\n        }\n    }\n    /**\n     * Deallocates a parser's resources\n     */\n    destroy() {\n        if (this.reconstructor) {\n            this.reconstructor.finishedReconstruction();\n            this.reconstructor = null;\n        }\n    }\n}\n/**\n * A manager of a binary event's 'buffer sequence'. Should\n * be constructed whenever a packet of type BINARY_EVENT is\n * decoded.\n *\n * @param {Object} packet\n * @return {BinaryReconstructor} initialized reconstructor\n */\nclass BinaryReconstructor {\n    constructor(packet) {\n        this.packet = packet;\n        this.buffers = [];\n        this.reconPack = packet;\n    }\n    /**\n     * Method to be called when binary data received from connection\n     * after a BINARY_EVENT packet.\n     *\n     * @param {Buffer | ArrayBuffer} binData - the raw binary data received\n     * @return {null | Object} returns null if more binary data is expected or\n     *   a reconstructed packet object if all buffers have been received.\n     */\n    takeBinaryData(binData) {\n        this.buffers.push(binData);\n        if (this.buffers.length === this.reconPack.attachments) {\n            // done with buffer list\n            const packet = reconstructPacket(this.reconPack, this.buffers);\n            this.finishedReconstruction();\n            return packet;\n        }\n        return null;\n    }\n    /**\n     * Cleans up binary packet reconstruction variables.\n     */\n    finishedReconstruction() {\n        this.reconPack = null;\n        this.buffers = [];\n    }\n}\n", "const withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nconst isView = (obj) => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj.buffer instanceof ArrayBuffer;\n};\nconst toString = Object.prototype.toString;\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeFile = typeof File === \"function\" ||\n    (typeof File !== \"undefined\" &&\n        toString.call(File) === \"[object FileConstructor]\");\n/**\n * Returns true if obj is a Buffer, an ArrayBuffer, a Blob or a File.\n *\n * @private\n */\nexport function isBinary(obj) {\n    return ((withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj))) ||\n        (withNativeBlob && obj instanceof Blob) ||\n        (withNativeFile && obj instanceof File));\n}\nexport function hasBinary(obj, toJSON) {\n    if (!obj || typeof obj !== \"object\") {\n        return false;\n    }\n    if (Array.isArray(obj)) {\n        for (let i = 0, l = obj.length; i < l; i++) {\n            if (hasBinary(obj[i])) {\n                return true;\n            }\n        }\n        return false;\n    }\n    if (isBinary(obj)) {\n        return true;\n    }\n    if (obj.toJSON &&\n        typeof obj.toJSON === \"function\" &&\n        arguments.length === 1) {\n        return hasBinary(obj.toJSON(), true);\n    }\n    for (const key in obj) {\n        if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {\n            return true;\n        }\n    }\n    return false;\n}\n", "import { isBinary } from \"./is-binary.js\";\n/**\n * Replaces every Buffer | ArrayBuffer | Blob | File in packet with a numbered placeholder.\n *\n * @param {Object} packet - socket.io event packet\n * @return {Object} with deconstructed packet and list of buffers\n * @public\n */\nexport function deconstructPacket(packet) {\n    const buffers = [];\n    const packetData = packet.data;\n    const pack = packet;\n    pack.data = _deconstructPacket(packetData, buffers);\n    pack.attachments = buffers.length; // number of binary 'attachments'\n    return { packet: pack, buffers: buffers };\n}\nfunction _deconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (isBinary(data)) {\n        const placeholder = { _placeholder: true, num: buffers.length };\n        buffers.push(data);\n        return placeholder;\n    }\n    else if (Array.isArray(data)) {\n        const newData = new Array(data.length);\n        for (let i = 0; i < data.length; i++) {\n            newData[i] = _deconstructPacket(data[i], buffers);\n        }\n        return newData;\n    }\n    else if (typeof data === \"object\" && !(data instanceof Date)) {\n        const newData = {};\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                newData[key] = _deconstructPacket(data[key], buffers);\n            }\n        }\n        return newData;\n    }\n    return data;\n}\n/**\n * Reconstructs a binary packet from its placeholder packet and buffers\n *\n * @param {Object} packet - event packet with placeholders\n * @param {Array} buffers - binary buffers to put in placeholder positions\n * @return {Object} reconstructed packet\n * @public\n */\nexport function reconstructPacket(packet, buffers) {\n    packet.data = _reconstructPacket(packet.data, buffers);\n    delete packet.attachments; // no longer useful\n    return packet;\n}\nfunction _reconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (data && data._placeholder === true) {\n        const isIndexValid = typeof data.num === \"number\" &&\n            data.num >= 0 &&\n            data.num < buffers.length;\n        if (isIndexValid) {\n            return buffers[data.num]; // appropriate buffer (should be natural order anyway)\n        }\n        else {\n            throw new Error(\"illegal attachments\");\n        }\n    }\n    else if (Array.isArray(data)) {\n        for (let i = 0; i < data.length; i++) {\n            data[i] = _reconstructPacket(data[i], buffers);\n        }\n    }\n    else if (typeof data === \"object\") {\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                data[key] = _reconstructPacket(data[key], buffers);\n            }\n        }\n    }\n    return data;\n}\n", "export function on(obj, ev, fn) {\n    obj.on(ev, fn);\n    return function subDestroy() {\n        obj.off(ev, fn);\n    };\n}\n", "import { PacketType } from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\n/**\n * Internal events.\n * These events can't be emitted by the user.\n */\nconst RESERVED_EVENTS = Object.freeze({\n    connect: 1,\n    connect_error: 1,\n    disconnect: 1,\n    disconnecting: 1,\n    // EventEmitter reserved events: https://nodejs.org/api/events.html#events_event_newlistener\n    newListener: 1,\n    removeListener: 1,\n});\n/**\n * A Socket is the fundamental class for interacting with the server.\n *\n * A Socket belongs to a certain Namespace (by default /) and uses an underlying {@link Manager} to communicate.\n *\n * @example\n * const socket = io();\n *\n * socket.on(\"connect\", () => {\n *   console.log(\"connected\");\n * });\n *\n * // send an event to the server\n * socket.emit(\"foo\", \"bar\");\n *\n * socket.on(\"foobar\", () => {\n *   // an event was received from the server\n * });\n *\n * // upon disconnection\n * socket.on(\"disconnect\", (reason) => {\n *   console.log(`disconnected due to ${reason}`);\n * });\n */\nexport class Socket extends Emitter {\n    /**\n     * `Socket` constructor.\n     */\n    constructor(io, nsp, opts) {\n        super();\n        /**\n         * Whether the socket is currently connected to the server.\n         *\n         * @example\n         * const socket = io();\n         *\n         * socket.on(\"connect\", () => {\n         *   console.log(socket.connected); // true\n         * });\n         *\n         * socket.on(\"disconnect\", () => {\n         *   console.log(socket.connected); // false\n         * });\n         */\n        this.connected = false;\n        /**\n         * Whether the connection state was recovered after a temporary disconnection. In that case, any missed packets will\n         * be transmitted by the server.\n         */\n        this.recovered = false;\n        /**\n         * Buffer for packets received before the CONNECT packet\n         */\n        this.receiveBuffer = [];\n        /**\n         * Buffer for packets that will be sent once the socket is connected\n         */\n        this.sendBuffer = [];\n        /**\n         * The queue of packets to be sent with retry in case of failure.\n         *\n         * Packets are sent one by one, each waiting for the server acknowledgement, in order to guarantee the delivery order.\n         * @private\n         */\n        this._queue = [];\n        /**\n         * A sequence to generate the ID of the {@link QueuedPacket}.\n         * @private\n         */\n        this._queueSeq = 0;\n        this.ids = 0;\n        this.acks = {};\n        this.flags = {};\n        this.io = io;\n        this.nsp = nsp;\n        if (opts && opts.auth) {\n            this.auth = opts.auth;\n        }\n        this._opts = Object.assign({}, opts);\n        if (this.io._autoConnect)\n            this.open();\n    }\n    /**\n     * Whether the socket is currently disconnected\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"connect\", () => {\n     *   console.log(socket.disconnected); // false\n     * });\n     *\n     * socket.on(\"disconnect\", () => {\n     *   console.log(socket.disconnected); // true\n     * });\n     */\n    get disconnected() {\n        return !this.connected;\n    }\n    /**\n     * Subscribe to open, close and packet events\n     *\n     * @private\n     */\n    subEvents() {\n        if (this.subs)\n            return;\n        const io = this.io;\n        this.subs = [\n            on(io, \"open\", this.onopen.bind(this)),\n            on(io, \"packet\", this.onpacket.bind(this)),\n            on(io, \"error\", this.onerror.bind(this)),\n            on(io, \"close\", this.onclose.bind(this)),\n        ];\n    }\n    /**\n     * Whether the Socket will try to reconnect when its Manager connects or reconnects.\n     *\n     * @example\n     * const socket = io();\n     *\n     * console.log(socket.active); // true\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   if (reason === \"io server disconnect\") {\n     *     // the disconnection was initiated by the server, you need to manually reconnect\n     *     console.log(socket.active); // false\n     *   }\n     *   // else the socket will automatically try to reconnect\n     *   console.log(socket.active); // true\n     * });\n     */\n    get active() {\n        return !!this.subs;\n    }\n    /**\n     * \"Opens\" the socket.\n     *\n     * @example\n     * const socket = io({\n     *   autoConnect: false\n     * });\n     *\n     * socket.connect();\n     */\n    connect() {\n        if (this.connected)\n            return this;\n        this.subEvents();\n        if (!this.io[\"_reconnecting\"])\n            this.io.open(); // ensure open\n        if (\"open\" === this.io._readyState)\n            this.onopen();\n        return this;\n    }\n    /**\n     * Alias for {@link connect()}.\n     */\n    open() {\n        return this.connect();\n    }\n    /**\n     * Sends a `message` event.\n     *\n     * This method mimics the WebSocket.send() method.\n     *\n     * @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send\n     *\n     * @example\n     * socket.send(\"hello\");\n     *\n     * // this is equivalent to\n     * socket.emit(\"message\", \"hello\");\n     *\n     * @return self\n     */\n    send(...args) {\n        args.unshift(\"message\");\n        this.emit.apply(this, args);\n        return this;\n    }\n    /**\n     * Override `emit`.\n     * If the event is in `events`, it's emitted normally.\n     *\n     * @example\n     * socket.emit(\"hello\", \"world\");\n     *\n     * // all serializable datastructures are supported (no need to call JSON.stringify)\n     * socket.emit(\"hello\", 1, \"2\", { 3: [\"4\"], 5: Uint8Array.from([6]) });\n     *\n     * // with an acknowledgement from the server\n     * socket.emit(\"hello\", \"world\", (val) => {\n     *   // ...\n     * });\n     *\n     * @return self\n     */\n    emit(ev, ...args) {\n        if (RESERVED_EVENTS.hasOwnProperty(ev)) {\n            throw new Error('\"' + ev.toString() + '\" is a reserved event name');\n        }\n        args.unshift(ev);\n        if (this._opts.retries && !this.flags.fromQueue && !this.flags.volatile) {\n            this._addToQueue(args);\n            return this;\n        }\n        const packet = {\n            type: PacketType.EVENT,\n            data: args,\n        };\n        packet.options = {};\n        packet.options.compress = this.flags.compress !== false;\n        // event ack callback\n        if (\"function\" === typeof args[args.length - 1]) {\n            const id = this.ids++;\n            const ack = args.pop();\n            this._registerAckCallback(id, ack);\n            packet.id = id;\n        }\n        const isTransportWritable = this.io.engine &&\n            this.io.engine.transport &&\n            this.io.engine.transport.writable;\n        const discardPacket = this.flags.volatile && (!isTransportWritable || !this.connected);\n        if (discardPacket) {\n        }\n        else if (this.connected) {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        }\n        else {\n            this.sendBuffer.push(packet);\n        }\n        this.flags = {};\n        return this;\n    }\n    /**\n     * @private\n     */\n    _registerAckCallback(id, ack) {\n        var _a;\n        const timeout = (_a = this.flags.timeout) !== null && _a !== void 0 ? _a : this._opts.ackTimeout;\n        if (timeout === undefined) {\n            this.acks[id] = ack;\n            return;\n        }\n        // @ts-ignore\n        const timer = this.io.setTimeoutFn(() => {\n            delete this.acks[id];\n            for (let i = 0; i < this.sendBuffer.length; i++) {\n                if (this.sendBuffer[i].id === id) {\n                    this.sendBuffer.splice(i, 1);\n                }\n            }\n            ack.call(this, new Error(\"operation has timed out\"));\n        }, timeout);\n        this.acks[id] = (...args) => {\n            // @ts-ignore\n            this.io.clearTimeoutFn(timer);\n            ack.apply(this, [null, ...args]);\n        };\n    }\n    /**\n     * Emits an event and waits for an acknowledgement\n     *\n     * @example\n     * // without timeout\n     * const response = await socket.emitWithAck(\"hello\", \"world\");\n     *\n     * // with a specific timeout\n     * try {\n     *   const response = await socket.timeout(1000).emitWithAck(\"hello\", \"world\");\n     * } catch (err) {\n     *   // the server did not acknowledge the event in the given delay\n     * }\n     *\n     * @return a Promise that will be fulfilled when the server acknowledges the event\n     */\n    emitWithAck(ev, ...args) {\n        // the timeout flag is optional\n        const withErr = this.flags.timeout !== undefined || this._opts.ackTimeout !== undefined;\n        return new Promise((resolve, reject) => {\n            args.push((arg1, arg2) => {\n                if (withErr) {\n                    return arg1 ? reject(arg1) : resolve(arg2);\n                }\n                else {\n                    return resolve(arg1);\n                }\n            });\n            this.emit(ev, ...args);\n        });\n    }\n    /**\n     * Add the packet to the queue.\n     * @param args\n     * @private\n     */\n    _addToQueue(args) {\n        let ack;\n        if (typeof args[args.length - 1] === \"function\") {\n            ack = args.pop();\n        }\n        const packet = {\n            id: this._queueSeq++,\n            tryCount: 0,\n            pending: false,\n            args,\n            flags: Object.assign({ fromQueue: true }, this.flags),\n        };\n        args.push((err, ...responseArgs) => {\n            if (packet !== this._queue[0]) {\n                // the packet has already been acknowledged\n                return;\n            }\n            const hasError = err !== null;\n            if (hasError) {\n                if (packet.tryCount > this._opts.retries) {\n                    this._queue.shift();\n                    if (ack) {\n                        ack(err);\n                    }\n                }\n            }\n            else {\n                this._queue.shift();\n                if (ack) {\n                    ack(null, ...responseArgs);\n                }\n            }\n            packet.pending = false;\n            return this._drainQueue();\n        });\n        this._queue.push(packet);\n        this._drainQueue();\n    }\n    /**\n     * Send the first packet of the queue, and wait for an acknowledgement from the server.\n     * @param force - whether to resend a packet that has not been acknowledged yet\n     *\n     * @private\n     */\n    _drainQueue(force = false) {\n        if (!this.connected || this._queue.length === 0) {\n            return;\n        }\n        const packet = this._queue[0];\n        if (packet.pending && !force) {\n            return;\n        }\n        packet.pending = true;\n        packet.tryCount++;\n        this.flags = packet.flags;\n        this.emit.apply(this, packet.args);\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param packet\n     * @private\n     */\n    packet(packet) {\n        packet.nsp = this.nsp;\n        this.io._packet(packet);\n    }\n    /**\n     * Called upon engine `open`.\n     *\n     * @private\n     */\n    onopen() {\n        if (typeof this.auth == \"function\") {\n            this.auth((data) => {\n                this._sendConnectPacket(data);\n            });\n        }\n        else {\n            this._sendConnectPacket(this.auth);\n        }\n    }\n    /**\n     * Sends a CONNECT packet to initiate the Socket.IO session.\n     *\n     * @param data\n     * @private\n     */\n    _sendConnectPacket(data) {\n        this.packet({\n            type: PacketType.CONNECT,\n            data: this._pid\n                ? Object.assign({ pid: this._pid, offset: this._lastOffset }, data)\n                : data,\n        });\n    }\n    /**\n     * Called upon engine or manager `error`.\n     *\n     * @param err\n     * @private\n     */\n    onerror(err) {\n        if (!this.connected) {\n            this.emitReserved(\"connect_error\", err);\n        }\n    }\n    /**\n     * Called upon engine `close`.\n     *\n     * @param reason\n     * @param description\n     * @private\n     */\n    onclose(reason, description) {\n        this.connected = false;\n        delete this.id;\n        this.emitReserved(\"disconnect\", reason, description);\n    }\n    /**\n     * Called with socket packet.\n     *\n     * @param packet\n     * @private\n     */\n    onpacket(packet) {\n        const sameNamespace = packet.nsp === this.nsp;\n        if (!sameNamespace)\n            return;\n        switch (packet.type) {\n            case PacketType.CONNECT:\n                if (packet.data && packet.data.sid) {\n                    this.onconnect(packet.data.sid, packet.data.pid);\n                }\n                else {\n                    this.emitReserved(\"connect_error\", new Error(\"It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)\"));\n                }\n                break;\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                this.onevent(packet);\n                break;\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                this.onack(packet);\n                break;\n            case PacketType.DISCONNECT:\n                this.ondisconnect();\n                break;\n            case PacketType.CONNECT_ERROR:\n                this.destroy();\n                const err = new Error(packet.data.message);\n                // @ts-ignore\n                err.data = packet.data.data;\n                this.emitReserved(\"connect_error\", err);\n                break;\n        }\n    }\n    /**\n     * Called upon a server event.\n     *\n     * @param packet\n     * @private\n     */\n    onevent(packet) {\n        const args = packet.data || [];\n        if (null != packet.id) {\n            args.push(this.ack(packet.id));\n        }\n        if (this.connected) {\n            this.emitEvent(args);\n        }\n        else {\n            this.receiveBuffer.push(Object.freeze(args));\n        }\n    }\n    emitEvent(args) {\n        if (this._anyListeners && this._anyListeners.length) {\n            const listeners = this._anyListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, args);\n            }\n        }\n        super.emit.apply(this, args);\n        if (this._pid && args.length && typeof args[args.length - 1] === \"string\") {\n            this._lastOffset = args[args.length - 1];\n        }\n    }\n    /**\n     * Produces an ack callback to emit with an event.\n     *\n     * @private\n     */\n    ack(id) {\n        const self = this;\n        let sent = false;\n        return function (...args) {\n            // prevent double callbacks\n            if (sent)\n                return;\n            sent = true;\n            self.packet({\n                type: PacketType.ACK,\n                id: id,\n                data: args,\n            });\n        };\n    }\n    /**\n     * Called upon a server acknowlegement.\n     *\n     * @param packet\n     * @private\n     */\n    onack(packet) {\n        const ack = this.acks[packet.id];\n        if (\"function\" === typeof ack) {\n            ack.apply(this, packet.data);\n            delete this.acks[packet.id];\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon server connect.\n     *\n     * @private\n     */\n    onconnect(id, pid) {\n        this.id = id;\n        this.recovered = pid && this._pid === pid;\n        this._pid = pid; // defined only if connection state recovery is enabled\n        this.connected = true;\n        this.emitBuffered();\n        this.emitReserved(\"connect\");\n        this._drainQueue(true);\n    }\n    /**\n     * Emit buffered events (received and emitted).\n     *\n     * @private\n     */\n    emitBuffered() {\n        this.receiveBuffer.forEach((args) => this.emitEvent(args));\n        this.receiveBuffer = [];\n        this.sendBuffer.forEach((packet) => {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        });\n        this.sendBuffer = [];\n    }\n    /**\n     * Called upon server disconnect.\n     *\n     * @private\n     */\n    ondisconnect() {\n        this.destroy();\n        this.onclose(\"io server disconnect\");\n    }\n    /**\n     * Called upon forced client/server side disconnections,\n     * this method ensures the manager stops tracking us and\n     * that reconnections don't get triggered for this.\n     *\n     * @private\n     */\n    destroy() {\n        if (this.subs) {\n            // clean subscriptions to avoid reconnections\n            this.subs.forEach((subDestroy) => subDestroy());\n            this.subs = undefined;\n        }\n        this.io[\"_destroy\"](this);\n    }\n    /**\n     * Disconnects the socket manually. In that case, the socket will not try to reconnect.\n     *\n     * If this is the last active Socket instance of the {@link Manager}, the low-level connection will be closed.\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   // console.log(reason); prints \"io client disconnect\"\n     * });\n     *\n     * socket.disconnect();\n     *\n     * @return self\n     */\n    disconnect() {\n        if (this.connected) {\n            this.packet({ type: PacketType.DISCONNECT });\n        }\n        // remove socket from pool\n        this.destroy();\n        if (this.connected) {\n            // fire events\n            this.onclose(\"io client disconnect\");\n        }\n        return this;\n    }\n    /**\n     * Alias for {@link disconnect()}.\n     *\n     * @return self\n     */\n    close() {\n        return this.disconnect();\n    }\n    /**\n     * Sets the compress flag.\n     *\n     * @example\n     * socket.compress(false).emit(\"hello\");\n     *\n     * @param compress - if `true`, compresses the sending data\n     * @return self\n     */\n    compress(compress) {\n        this.flags.compress = compress;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the event message will be dropped when this socket is not\n     * ready to send messages.\n     *\n     * @example\n     * socket.volatile.emit(\"hello\"); // the server may or may not receive it\n     *\n     * @returns self\n     */\n    get volatile() {\n        this.flags.volatile = true;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the callback will be called with an error when the\n     * given number of milliseconds have elapsed without an acknowledgement from the server:\n     *\n     * @example\n     * socket.timeout(5000).emit(\"my-event\", (err) => {\n     *   if (err) {\n     *     // the server did not acknowledge the event in the given delay\n     *   }\n     * });\n     *\n     * @returns self\n     */\n    timeout(timeout) {\n        this.flags.timeout = timeout;\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * @example\n     * socket.onAny((event, ...args) => {\n     *   console.log(`got ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * @example\n     * socket.prependAny((event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * }\n     *\n     * socket.onAny(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAny(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAny();\n     *\n     * @param listener\n     */\n    offAny(listener) {\n        if (!this._anyListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAny() {\n        return this._anyListeners || [];\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.onAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.prependAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * }\n     *\n     * socket.onAnyOutgoing(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAnyOutgoing(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAnyOutgoing();\n     *\n     * @param [listener] - the catch-all listener (optional)\n     */\n    offAnyOutgoing(listener) {\n        if (!this._anyOutgoingListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyOutgoingListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyOutgoingListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAnyOutgoing() {\n        return this._anyOutgoingListeners || [];\n    }\n    /**\n     * Notify the listeners for each packet sent\n     *\n     * @param packet\n     *\n     * @private\n     */\n    notifyOutgoingListeners(packet) {\n        if (this._anyOutgoingListeners && this._anyOutgoingListeners.length) {\n            const listeners = this._anyOutgoingListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, packet.data);\n            }\n        }\n    }\n}\n", "/**\n * Initialize backoff timer with `opts`.\n *\n * - `min` initial timeout in milliseconds [100]\n * - `max` max timeout [10000]\n * - `jitter` [0]\n * - `factor` [2]\n *\n * @param {Object} opts\n * @api public\n */\nexport function Backoff(opts) {\n    opts = opts || {};\n    this.ms = opts.min || 100;\n    this.max = opts.max || 10000;\n    this.factor = opts.factor || 2;\n    this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;\n    this.attempts = 0;\n}\n/**\n * Return the backoff duration.\n *\n * @return {Number}\n * @api public\n */\nBackoff.prototype.duration = function () {\n    var ms = this.ms * Math.pow(this.factor, this.attempts++);\n    if (this.jitter) {\n        var rand = Math.random();\n        var deviation = Math.floor(rand * this.jitter * ms);\n        ms = (Math.floor(rand * 10) & 1) == 0 ? ms - deviation : ms + deviation;\n    }\n    return Math.min(ms, this.max) | 0;\n};\n/**\n * Reset the number of attempts.\n *\n * @api public\n */\nBackoff.prototype.reset = function () {\n    this.attempts = 0;\n};\n/**\n * Set the minimum duration\n *\n * @api public\n */\nBackoff.prototype.setMin = function (min) {\n    this.ms = min;\n};\n/**\n * Set the maximum duration\n *\n * @api public\n */\nBackoff.prototype.setMax = function (max) {\n    this.max = max;\n};\n/**\n * Set the jitter\n *\n * @api public\n */\nBackoff.prototype.setJitter = function (jitter) {\n    this.jitter = jitter;\n};\n", "import { Socket as Engine, installTimerFunctions, nextTick, } from \"engine.io-client\";\nimport { Socket } from \"./socket.js\";\nimport * as parser from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Backoff } from \"./contrib/backo2.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\nexport class Manager extends Emitter {\n    constructor(uri, opts) {\n        var _a;\n        super();\n        this.nsps = {};\n        this.subs = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = undefined;\n        }\n        opts = opts || {};\n        opts.path = opts.path || \"/socket.io\";\n        this.opts = opts;\n        installTimerFunctions(this, opts);\n        this.reconnection(opts.reconnection !== false);\n        this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);\n        this.reconnectionDelay(opts.reconnectionDelay || 1000);\n        this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);\n        this.randomizationFactor((_a = opts.randomizationFactor) !== null && _a !== void 0 ? _a : 0.5);\n        this.backoff = new Backoff({\n            min: this.reconnectionDelay(),\n            max: this.reconnectionDelayMax(),\n            jitter: this.randomizationFactor(),\n        });\n        this.timeout(null == opts.timeout ? 20000 : opts.timeout);\n        this._readyState = \"closed\";\n        this.uri = uri;\n        const _parser = opts.parser || parser;\n        this.encoder = new _parser.Encoder();\n        this.decoder = new _parser.Decoder();\n        this._autoConnect = opts.autoConnect !== false;\n        if (this._autoConnect)\n            this.open();\n    }\n    reconnection(v) {\n        if (!arguments.length)\n            return this._reconnection;\n        this._reconnection = !!v;\n        return this;\n    }\n    reconnectionAttempts(v) {\n        if (v === undefined)\n            return this._reconnectionAttempts;\n        this._reconnectionAttempts = v;\n        return this;\n    }\n    reconnectionDelay(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelay;\n        this._reconnectionDelay = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMin(v);\n        return this;\n    }\n    randomizationFactor(v) {\n        var _a;\n        if (v === undefined)\n            return this._randomizationFactor;\n        this._randomizationFactor = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setJitter(v);\n        return this;\n    }\n    reconnectionDelayMax(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelayMax;\n        this._reconnectionDelayMax = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMax(v);\n        return this;\n    }\n    timeout(v) {\n        if (!arguments.length)\n            return this._timeout;\n        this._timeout = v;\n        return this;\n    }\n    /**\n     * Starts trying to reconnect if reconnection is enabled and we have not\n     * started reconnecting yet\n     *\n     * @private\n     */\n    maybeReconnectOnOpen() {\n        // Only try to reconnect if it's the first time we're connecting\n        if (!this._reconnecting &&\n            this._reconnection &&\n            this.backoff.attempts === 0) {\n            // keeps reconnection from firing twice for the same reconnection loop\n            this.reconnect();\n        }\n    }\n    /**\n     * Sets the current transport `socket`.\n     *\n     * @param {Function} fn - optional, callback\n     * @return self\n     * @public\n     */\n    open(fn) {\n        if (~this._readyState.indexOf(\"open\"))\n            return this;\n        this.engine = new Engine(this.uri, this.opts);\n        const socket = this.engine;\n        const self = this;\n        this._readyState = \"opening\";\n        this.skipReconnect = false;\n        // emit `open`\n        const openSubDestroy = on(socket, \"open\", function () {\n            self.onopen();\n            fn && fn();\n        });\n        const onError = (err) => {\n            this.cleanup();\n            this._readyState = \"closed\";\n            this.emitReserved(\"error\", err);\n            if (fn) {\n                fn(err);\n            }\n            else {\n                // Only do this if there is no fn to handle the error\n                this.maybeReconnectOnOpen();\n            }\n        };\n        // emit `error`\n        const errorSub = on(socket, \"error\", onError);\n        if (false !== this._timeout) {\n            const timeout = this._timeout;\n            // set timer\n            const timer = this.setTimeoutFn(() => {\n                openSubDestroy();\n                onError(new Error(\"timeout\"));\n                socket.close();\n            }, timeout);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n        this.subs.push(openSubDestroy);\n        this.subs.push(errorSub);\n        return this;\n    }\n    /**\n     * Alias for open()\n     *\n     * @return self\n     * @public\n     */\n    connect(fn) {\n        return this.open(fn);\n    }\n    /**\n     * Called upon transport open.\n     *\n     * @private\n     */\n    onopen() {\n        // clear old subs\n        this.cleanup();\n        // mark as open\n        this._readyState = \"open\";\n        this.emitReserved(\"open\");\n        // add new subs\n        const socket = this.engine;\n        this.subs.push(on(socket, \"ping\", this.onping.bind(this)), on(socket, \"data\", this.ondata.bind(this)), on(socket, \"error\", this.onerror.bind(this)), on(socket, \"close\", this.onclose.bind(this)), on(this.decoder, \"decoded\", this.ondecoded.bind(this)));\n    }\n    /**\n     * Called upon a ping.\n     *\n     * @private\n     */\n    onping() {\n        this.emitReserved(\"ping\");\n    }\n    /**\n     * Called with data.\n     *\n     * @private\n     */\n    ondata(data) {\n        try {\n            this.decoder.add(data);\n        }\n        catch (e) {\n            this.onclose(\"parse error\", e);\n        }\n    }\n    /**\n     * Called when parser fully decodes a packet.\n     *\n     * @private\n     */\n    ondecoded(packet) {\n        // the nextTick call prevents an exception in a user-provided event listener from triggering a disconnection due to a \"parse error\"\n        nextTick(() => {\n            this.emitReserved(\"packet\", packet);\n        }, this.setTimeoutFn);\n    }\n    /**\n     * Called upon socket error.\n     *\n     * @private\n     */\n    onerror(err) {\n        this.emitReserved(\"error\", err);\n    }\n    /**\n     * Creates a new socket for the given `nsp`.\n     *\n     * @return {Socket}\n     * @public\n     */\n    socket(nsp, opts) {\n        let socket = this.nsps[nsp];\n        if (!socket) {\n            socket = new Socket(this, nsp, opts);\n            this.nsps[nsp] = socket;\n        }\n        else if (this._autoConnect && !socket.active) {\n            socket.connect();\n        }\n        return socket;\n    }\n    /**\n     * Called upon a socket close.\n     *\n     * @param socket\n     * @private\n     */\n    _destroy(socket) {\n        const nsps = Object.keys(this.nsps);\n        for (const nsp of nsps) {\n            const socket = this.nsps[nsp];\n            if (socket.active) {\n                return;\n            }\n        }\n        this._close();\n    }\n    /**\n     * Writes a packet.\n     *\n     * @param packet\n     * @private\n     */\n    _packet(packet) {\n        const encodedPackets = this.encoder.encode(packet);\n        for (let i = 0; i < encodedPackets.length; i++) {\n            this.engine.write(encodedPackets[i], packet.options);\n        }\n    }\n    /**\n     * Clean up transport subscriptions and packet buffer.\n     *\n     * @private\n     */\n    cleanup() {\n        this.subs.forEach((subDestroy) => subDestroy());\n        this.subs.length = 0;\n        this.decoder.destroy();\n    }\n    /**\n     * Close the current socket.\n     *\n     * @private\n     */\n    _close() {\n        this.skipReconnect = true;\n        this._reconnecting = false;\n        this.onclose(\"forced close\");\n        if (this.engine)\n            this.engine.close();\n    }\n    /**\n     * Alias for close()\n     *\n     * @private\n     */\n    disconnect() {\n        return this._close();\n    }\n    /**\n     * Called upon engine close.\n     *\n     * @private\n     */\n    onclose(reason, description) {\n        this.cleanup();\n        this.backoff.reset();\n        this._readyState = \"closed\";\n        this.emitReserved(\"close\", reason, description);\n        if (this._reconnection && !this.skipReconnect) {\n            this.reconnect();\n        }\n    }\n    /**\n     * Attempt a reconnection.\n     *\n     * @private\n     */\n    reconnect() {\n        if (this._reconnecting || this.skipReconnect)\n            return this;\n        const self = this;\n        if (this.backoff.attempts >= this._reconnectionAttempts) {\n            this.backoff.reset();\n            this.emitReserved(\"reconnect_failed\");\n            this._reconnecting = false;\n        }\n        else {\n            const delay = this.backoff.duration();\n            this._reconnecting = true;\n            const timer = this.setTimeoutFn(() => {\n                if (self.skipReconnect)\n                    return;\n                this.emitReserved(\"reconnect_attempt\", self.backoff.attempts);\n                // check again for the case socket closed in above events\n                if (self.skipReconnect)\n                    return;\n                self.open((err) => {\n                    if (err) {\n                        self._reconnecting = false;\n                        self.reconnect();\n                        this.emitReserved(\"reconnect_error\", err);\n                    }\n                    else {\n                        self.onreconnect();\n                    }\n                });\n            }, delay);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n    }\n    /**\n     * Called upon successful reconnect.\n     *\n     * @private\n     */\n    onreconnect() {\n        const attempt = this.backoff.attempts;\n        this._reconnecting = false;\n        this.backoff.reset();\n        this.emitReserved(\"reconnect\", attempt);\n    }\n}\n", "import { url } from \"./url.js\";\nimport { Manager } from \"./manager.js\";\nimport { Socket } from \"./socket.js\";\n/**\n * Managers cache.\n */\nconst cache = {};\nfunction lookup(uri, opts) {\n    if (typeof uri === \"object\") {\n        opts = uri;\n        uri = undefined;\n    }\n    opts = opts || {};\n    const parsed = url(uri, opts.path || \"/socket.io\");\n    const source = parsed.source;\n    const id = parsed.id;\n    const path = parsed.path;\n    const sameNamespace = cache[id] && path in cache[id][\"nsps\"];\n    const newConnection = opts.forceNew ||\n        opts[\"force new connection\"] ||\n        false === opts.multiplex ||\n        sameNamespace;\n    let io;\n    if (newConnection) {\n        io = new Manager(source, opts);\n    }\n    else {\n        if (!cache[id]) {\n            cache[id] = new Manager(source, opts);\n        }\n        io = cache[id];\n    }\n    if (parsed.query && !opts.query) {\n        opts.query = parsed.queryKey;\n    }\n    return io.socket(parsed.path, opts);\n}\n// so that \"lookup\" can be used both as a function (e.g. `io(...)`) and as a\n// namespace (e.g. `io.connect(...)`), for backward compatibility\nObject.assign(lookup, {\n    Manager,\n    Socket,\n    io: lookup,\n    connect: lookup,\n});\n/**\n * Protocol version.\n *\n * @public\n */\nexport { protocol } from \"socket.io-parser\";\n/**\n * Expose constructors for standalone build.\n *\n * @public\n */\nexport { Manager, Socket, lookup as io, lookup as connect, lookup as default, };\n"],
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+  "names": ["require_ui", "__commonJSMin", "exports", "module", "_a", "Ui", "win", "extLog", "jsonHighlight", "__publicField", "config", "notify", "resolve", "reject", "ev", "ui", "isRecurse", "compToAdd", "i", "newEl", "elParent", "el", "comp", "attrib", "type", "evt", "err", "prop", "parentEl", "components", "ns", "component", "__toESM", "__require", "script", "sheet", "msg", "all", "compToRemove", "els", "compToReplace", "elToReplace", "compToUpd", "elToUpd", "cssSelector", "classNames", "mdText", "opts", "str", "lang", "md", "url", "uiOptions", "response", "error", "contentType", "slot", "txtReturn", "data", "newScript", "textFn", "newStyle", "node", "thisOut", "listEntries", "bodyEntries", "headEntries", "cols", "v", "permit", "html", "content", "toaster", "toast", "json", "propName", "selection", "out", "p", "cType", "key", "import_ui", "_UibVar", "__publicField", "attrib", "oldVal", "newVal", "val", "t", "UibVar", "PACKET_TYPES", "PACKET_TYPES_REVERSE", "key", "ERROR_PACKET", "withNativeBlob", "withNativeArrayBuffer", "isView", "obj", "encodePacket", "type", "data", "supportsBinary", "callback", "encodeBlobAsBase64", "PACKET_TYPES", "fileReader", "content", "toArray", "TEXT_ENCODER", "encodePacketToBinary", "packet", "encoded", "chars", "lookup", "i", "decode", "base64", "bufferLength", "len", "p", "encoded1", "encoded2", "encoded3", "encoded4", "arraybuffer", "bytes", "lookup", "withNativeArrayBuffer", "decodePacket", "encodedPacket", "binaryType", "mapBinary", "type", "decodeBase64Packet", "PACKET_TYPES_REVERSE", "ERROR_PACKET", "data", "decoded", "decode", "SEPARATOR", "encodePayload", "packets", "callback", "length", "encodedPackets", "count", "packet", "i", "encodePacket", "encodedPacket", "decodePayload", "encodedPayload", "binaryType", "decodedPacket", "decodePacket", "createPacketEncoderStream", "controller", "encodePacketToBinary", "payloadLength", "header", "view", "TEXT_DECODER", "totalLength", "chunks", "acc", "chunk", "concatChunks", "size", "buffer", "j", "createPacketDecoderStream", "maxPayload", "state", "expectedLength", "isBinary", "headerArray", "n", "ERROR_PACKET", "data", "protocol", "Emitter", "obj", "mixin", "key", "event", "fn", "on", "callbacks", "cb", "i", "args", "len", "globalThisShim", "pick", "obj", "attr", "acc", "k", "NATIVE_SET_TIMEOUT", "globalThisShim", "NATIVE_CLEAR_TIMEOUT", "installTimerFunctions", "opts", "BASE64_OVERHEAD", "byteLength", "utf8Length", "str", "c", "length", "l", "encode", "obj", "str", "i", "decode", "qs", "qry", "pairs", "l", "pair", "TransportError", "reason", "description", "context", "Transport", "Emitter", "opts", "installTimerFunctions", "packets", "data", "packet", "decodePacket", "details", "onPause", "schema", "query", "hostname", "encodedQuery", "encode", "alphabet", "length", "map", "seed", "i", "prev", "encode", "num", "encoded", "yeast", "now", "encode", "prev", "seed", "i", "length", "map", "alphabet", "value", "hasCORS", "XHR", "opts", "xdomain", "hasCORS", "globalThisShim", "empty", "hasXHR2", "XHR", "Polling", "Transport", "opts", "isSSL", "port", "forceBase64", "onPause", "pause", "total", "data", "callback", "packet", "decodePayload", "close", "packets", "encodePayload", "schema", "query", "yeast", "Request", "fn", "req", "xhrStatus", "context", "_Request", "Emitter", "uri", "installTimerFunctions", "_a", "pick", "xhr", "i", "e", "err", "fromError", "unloadHandler", "terminationEvent", "globalThisShim", "nextTick", "cb", "setTimeoutFn", "WebSocket", "globalThisShim", "usingBrowserWebSocket", "defaultBinaryType", "isReactNative", "WS", "Transport", "opts", "uri", "protocols", "pick", "usingBrowserWebSocket", "WebSocket", "err", "closeEvent", "ev", "packets", "i", "packet", "lastPacket", "encodePacket", "data", "nextTick", "schema", "query", "yeast", "WT", "Transport", "err", "stream", "decoderStream", "createPacketDecoderStream", "reader", "encoderStream", "createPacketEncoderStream", "read", "done", "value", "packet", "packets", "i", 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"ms", "rand", "deviation", "min", "max", "jitter", "Manager", "Emitter", "uri", "opts", "_a", "installTimerFunctions", "Backoff", "_parser", "esm_exports", "v", "fn", "Socket", "socket", "self", "openSubDestroy", "on", "onError", "err", "errorSub", "timeout", "timer", "data", "e", "packet", "nextTick", "nsp", "nsps", "encodedPackets", "subDestroy", "reason", "description", "delay", "attempt", "cache", "lookup", "uri", "opts", "parsed", "url", "source", "id", "path", "sameNamespace", "newConnection", "io", "Manager", "Socket", "version", "isMinified", "param", "logLevel", "LOG_STYLES", "log", "args", "level", "strLevel", "head", "makeMeAnObject", "thing", "property", "out", "urlJoin", "e", "syntaxHighlight", "json", "match", "cls", "_ui", "Ui", "_a", "_pingInterval", "_propChangeCallbacks", "_msgRecvdByTopicCallbacks", "_timerid", "_MsgHandler", "_isShowMsg", "_isShowStatus", "_sendUrlHash", "_extCommands", "_managedVars", "_showStatus", "_uiObservers", "Uib", "__publicField", "__privateAdd", "cb", "c", "splitC", "event", "__privateGet", "fullPath", "autoloadVars", "id", "prop", "val", "store", "autoload", "value", "autoVars", "title", "details", "callback", "nextCbRef", "propChangeCallback", "cbRef", "topic", "msgRecvdEvtCallback", "msg", "receivedMsg", "serverTimestamp", "offset", "originator", "ms", "oReq", "headers", "elapsedTime", "__privateSet", "varToCopy", "data", "cssSelector", "el", "exists", "url", "deflt", "ret", "toggle", "mdText", "uiOptions", "textFn", "component", "html", "type", "ui", "propName", "showHide", "parent", "slot", "config", "res", "err", "opts", "root", "entry", "startStop", "send", "showLog", "targetNode", "that", "mutationList", "mu", "oMu", "an", "i", "htmlCache", "receivedCtrlMsg", "obj", "r", "msgToSend", "channel", "numMsgs", "cmd", "quiet", "response", "info", "newUrl", "txtToSend", "domevent", "target", "props", "key", "ignoreAttribs", "attribs", "name", "form", "frmVals", "frmEl", "v", "classes", "payload", "nprops", "ioNamespace", "u", "t", "delay", "factor", "depth", "reason", "lookup", "options", "eMsg", "uibuilder", "uibuilder_module_default", "uibuilder", "UibVar"]
 }
diff --git a/src/front-end-module/uibuilder.module.js b/src/front-end-module/uibuilder.module.js
index 87bb59ad..1dae35a5 100644
--- a/src/front-end-module/uibuilder.module.js
+++ b/src/front-end-module/uibuilder.module.js
@@ -809,42 +809,6 @@ export const Uib = class Uib {
         }
     }
 
-    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element
-     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.
-     * If the selected element is a <template>, returns the first child element.
-     * type {HTMLElement}
-     * @param {string} cssSelector A CSS Selector that identifies the element to return
-     * @returns {*} Selected HTML element or null
-     */
-    $(cssSelector) {
-        /** @type {*} Some kind of HTML element */
-        let el = document.querySelector(cssSelector)
-
-        if (!el) {
-            log(1, 'Uib:$', `No element found for CSS selector ${cssSelector}`)()
-            return null
-        }
-
-        if ( el.nodeName === 'TEMPLATE' ) {
-            el = el.content.firstElementChild
-            if (!el) {
-                log(0, 'Uib:$', `Template selected for CSS selector ${cssSelector} but it is empty`)()
-                return null
-            }
-        }
-
-        return el
-    }
-
-    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.
-     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself
-     * @param {*} cssSelector A CSS Selector that identifies the elements to return
-     * @returns {Array} Array of DOM elements/nodes. Array is empty if selector is not found.
-     */
-    $$(cssSelector) {
-        return Array.from(document.querySelectorAll(cssSelector))
-    }
-
     /** Set the default originator. Set to '' to ignore. Used with uib-sender.
      * @param {string} [originator] A Node-RED node ID to return the message to
      */
@@ -922,6 +886,7 @@ export const Uib = class Uib {
      * Requires IntersectionObserver (available to all mainstream browsers from early 2019)
      * Automatically sends a msg back to Node-RED.
      * Requires the element to already exist.
+     * @returns {false}
      */
     elementIsVisible() {
         const info = 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'
@@ -1010,33 +975,32 @@ export const Uib = class Uib {
     //#region ------- UI handlers --------- //
 
     //#region -- Direct to _ui --
+    // ! NOTE: Direct assignments change the target `this` to here. Use with caution
 
-    /** Directly manage UI via JSON
-     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions
+    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element
+     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.
+     * If the selected element is a <template>, returns the first child element.
+     * type {HTMLElement}
+     * @param {string} cssSelector A CSS Selector that identifies the element to return
+     * @returns {HTMLElement|null} Selected HTML element or null
      */
-    ui(json) {
-        _ui.ui(json)
-    }
+    $ = _ui.$
 
-    /** Replace or add an HTML element's slot from text or an HTML string
-     * Will use DOMPurify if that library has been loaded to window.
-     * param {*} ui Single entry from the msg._ui property
-     * @param {Element} el Reference to the element that we want to update
-     * @param {*} component The component we are trying to add/replace
+    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.
+     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself
+     * @param {string} cssSelector A CSS Selector that identifies the elements to return
+     * @returns {HTMLElement[]} Array of DOM elements/nodes. Array is empty if selector is not found.
      */
-    replaceSlot(el, component) {
-        _ui.replaceSlot(el, component)
-    }
+    $$ = _ui.$$
 
-    /** Replace or add an HTML element's slot from a Markdown string
-     * Only does something if the markdownit library has been loaded to window.
-     * Will use DOMPurify if that library has been loaded to window.
-     * @param {Element} el Reference to the element that we want to update
-     * @param {*} component The component we are trying to add/replace
+    /** Reference to the full ui library */
+    $ui = _ui
+
+    /** Add 1 or several class names to an element
+     * @param {string|string[]} classNames Single or array of classnames
+     * @param {HTMLElement} el HTML Element to add class(es) to
      */
-    replaceSlotMarkdown(el, component) {
-        _ui.replaceSlotMarkdown(el, component)
-    }
+    addClass = _ui.addClass
 
     /** Converts markdown text input to HTML if the Markdown-IT library is loaded
      * Otherwise simply returns the text
@@ -1044,16 +1008,19 @@ export const Uib = class Uib {
      * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text
      */
     convertMarkdown(mdText) {
-        return _ui.convertMarkdown(mdText)
+        return _ui.convertMarkdown
     }
 
-    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded
-     * Otherwise just returns that HTML as-is.
-     * @param {string} html The input HTML string
-     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded
+    /** ASYNC: Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API
+     * Wraps the included object in a div tag.
+     * PDF's, text or unknown MIME types are also wrapped in an iFrame.
+     * @param {string} url The URL of the source file to include
+     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id
+     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag
+     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')
      */
-    sanitiseHTML(html) {
-        return _ui.sanitiseHTML(html)
+    async include(url, uiOptions) {
+        await _ui.include(url, uiOptions)
     }
 
     /** Attach a new remote script to the end of HEAD synchronously
@@ -1092,6 +1059,48 @@ export const Uib = class Uib {
         _ui.loadStyleTxt(textFn)
     }
 
+    /** Load a dynamic UI from a JSON web reponse
+     * @param {string} url URL that will return the ui JSON
+     */
+    loadui(url) {
+        _ui.loadui(url)
+    }
+
+    /** Remove All, 1 or more class names from an element
+     * @param {undefined|null|""|string|string[]} classNames Single or array of classnames. If undefined, "" or null, remove all classes
+     * @param {HTMLElement} el HTML Element to add class(es) to
+     */
+    removeClass = _ui.removeClass
+
+    /** Replace or add an HTML element's slot from text or an HTML string
+     * Will use DOMPurify if that library has been loaded to window.
+     * param {*} ui Single entry from the msg._ui property
+     * @param {Element} el Reference to the element that we want to update
+     * @param {*} component The component we are trying to add/replace
+     */
+    replaceSlot(el, component) {
+        _ui.replaceSlot(el, component)
+    }
+
+    /** Replace or add an HTML element's slot from a Markdown string
+     * Only does something if the markdownit library has been loaded to window.
+     * Will use DOMPurify if that library has been loaded to window.
+     * @param {Element} el Reference to the element that we want to update
+     * @param {*} component The component we are trying to add/replace
+     */
+    replaceSlotMarkdown(el, component) {
+        _ui.replaceSlotMarkdown(el, component)
+    }
+
+    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded
+     * Otherwise just returns that HTML as-is.
+     * @param {string} html The input HTML string
+     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded
+     */
+    sanitiseHTML(html) {
+        return _ui.sanitiseHTML(html)
+    }
+
     /** Show a pop-over "toast" dialog or a modal alert
      * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,
      *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,
@@ -1105,11 +1114,11 @@ export const Uib = class Uib {
         _ui.showDialog(type, ui, msg)
     }
 
-    /** Load a dynamic UI from a JSON web reponse
-     * @param {string} url URL that will return the ui JSON
+    /** Directly manage UI via JSON
+     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions
      */
-    loadui(url) {
-        _ui.loadui(url)
+    ui(json) {
+        _ui.ui(json)
     }
 
     /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.
@@ -1121,18 +1130,6 @@ export const Uib = class Uib {
         return _ui.uiGet(cssSelector, propName)
     }
 
-    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API
-     * Wraps the included object in a div tag.
-     * PDF's, text or unknown MIME types are also wrapped in an iFrame.
-     * @param {string} url The URL of the source file to include
-     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id
-     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag
-     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')
-     */
-    async include(url, uiOptions) {
-        _ui.include(url, uiOptions)
-    }
-
     /** Enhance an HTML element that is being composed with ui data
      *  such as ID, attribs, event handlers, custom props, etc.
      * @param {*} el HTML Element to enhance
@@ -1496,6 +1493,141 @@ export const Uib = class Uib {
 
     //#region ------- Message Handling (To/From Node-RED) -------- //
 
+    /** Handles original control msgs (not to be confused with "new" msg._uib controls)
+     * @param {*} receivedCtrlMsg The msg received on the socket.io control channel
+     */
+    _ctrlMsgFromServer(receivedCtrlMsg) {
+
+        // Make sure that msg is an object & not null
+        if (receivedCtrlMsg === null) {
+            receivedCtrlMsg = {}
+        } else if (typeof receivedCtrlMsg !== 'object') {
+            const msg = {}
+            msg['uibuilderCtrl:' + this._ioChannels.control] = receivedCtrlMsg
+            receivedCtrlMsg = msg
+        }
+
+        // @since 2018-10-07 v1.0.9: Work out local time offset from server
+        this._checkTimestamp(receivedCtrlMsg)
+
+        this.set('ctrlMsg', receivedCtrlMsg)
+        this.set('msgsCtrlReceived', ++this.msgsCtrlReceived)
+
+        log('trace', 'Uib:ioSetup:_ctrlMsgFromServer', `Channel '${this._ioChannels.control}'. Received control msg #${this.msgsCtrlReceived}`, receivedCtrlMsg)()
+
+        /** Process control msg types */
+        switch (receivedCtrlMsg.uibuilderCtrl) {
+            // Node-RED is shutting down
+            case 'shutdown': {
+                log('info', `Uib:ioSetup:${this._ioChannels.control}`, '❌ Received "shutdown" from server')()
+                this.set('serverShutdown', undefined)
+                break
+            }
+
+            /** We are connected to the server - 1st msg from server */
+            case 'client connect': {
+                log('trace', `Uib:ioSetup:${this._ioChannels.control}`, 'Received "client connect" from server')()
+                log('info', `Uib:ioSetup:${this._ioChannels.control}`, `✅ Server connected. Version: ${receivedCtrlMsg.version}\nServer time: ${receivedCtrlMsg.serverTimestamp}, Sever time offset: ${this.serverTimeOffset} hours`)()
+
+                if ( !Uib._meta.version.startsWith(receivedCtrlMsg.version.split('-')[0]) ) {
+                    log('warn', `Uib:ioSetup:${this._ioChannels.control}`, `Server version (${receivedCtrlMsg.version}) not the same as the client version (${Uib._meta.version})`)()
+                }
+
+                if (this.autoSendReady === true) { // eslint-disable-line no-lonely-if
+                    log('trace', `Uib:ioSetup:${this._ioChannels.control}/client connect`, 'Auto-sending ready-for-content/replay msg to server')
+                    // @since 0.4.8c Add cacheControl property for use with node-red-contrib-infocache
+                    // @since 6.1.0 Don't bother, we use the "client connect" msg
+                    // this._send({
+                    //     'uibuilderCtrl': 'ready for content',
+                    //     'cacheControl': 'REPLAY',
+                    // }, this._ioChannels.control)
+                }
+
+                break
+            }
+
+            default: {
+                log('trace', `uibuilderfe:ioSetup:${this._ioChannels.control}`, `Received ${receivedCtrlMsg.uibuilderCtrl} from server`)
+                // Anything else to do for other control msgs?
+            }
+        } // ---- End of process control msg types ---- //
+    } // -- End of websocket receive CONTROL msg from Node-RED -- //
+
+    /** Do we want to process something? Check pageName, clientId, tabId. Defaults to yes.
+     * @param {*} obj Either a msg._ui or msg._uib object to check
+     * @returns {boolean} True if we should process the inbound _ui/_uib msg, false if not.
+     */
+    _forThis(obj) {
+        let r = true
+
+        // Is this msg for this pageName?
+        if (obj.pageName && obj.pageName !== this.pageName) {
+            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this page')()
+            r = false
+        }
+
+        // Is this msg for this clientId?
+        if (obj.clientId && obj.clientId !== this.clientId) {
+            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this clientId')()
+            r = false
+        }
+
+        // Is this msg for this tabId?
+        if (obj.tabId && obj.tabId !== this.tabId) {
+            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this tabId')()
+            r = false
+        }
+
+        return r
+    }
+
+    // Handle received messages - Process some msgs internally, emit specific events on document that make it easy for coders to use
+    _msgRcvdEvents(msg) {
+        // Message received
+        this._dispatchCustomEvent('uibuilder:stdMsgReceived', msg)
+
+        // Topic
+        if ( msg.topic ) this._dispatchCustomEvent(`uibuilder:msg:topic:${msg.topic}`, msg)
+
+        // Handle msg._uib special requests
+        if (msg._uib) {
+            // Don't process if the inbound msg is not for us
+            if (!this._forThis(msg._uib)) return
+
+            /** Process a client reload request from Node-RED - as the page is reloaded, everything else is ignored
+             * Note that msg._ui.reload is also actioned via the _ui processing below */
+            if (msg._uib.reload === true) {
+                log('trace', 'Uib:_msgRcvdEvents:_uib:reload', 'reloading')()
+                location.reload()
+                return
+            }
+
+            // Process msg._uib.command messages - allows Node-RED to run uibuilder FE functions
+            if (msg._uib.command) {
+                this._uibCommand(msg)
+                return
+            }
+
+            // Better to request via msg._ui - these are for backwards compatibility
+            if ( msg._uib.componentRef === 'globalNotification' ) {
+                _ui.showDialog('notify', msg._uib.options, msg)
+            }
+            if ( msg._uib.componentRef === 'globalAlert' ) {
+                _ui.showDialog('alert', msg._uib.options, msg)
+            }
+        }
+
+        // Handle msg._ui requests
+        if ( msg._ui ) {
+            // Don't process if the inbound msg is not for us
+            if (!this._forThis(msg._ui)) return
+
+            log('trace', 'Uib:_msgRcvdEvents:_ui', 'Calling _uiManager')()
+            this._dispatchCustomEvent('uibuilder:msg:_ui', msg)
+            _ui._uiManager(msg)
+        }
+    } // --- end of _msgRcvdEvents ---
+
     /** Internal send fn. Send a standard or control msg back to Node-RED via Socket.IO
      * NR will generally expect the msg to contain a payload topic
      * @param {object} msgToSend The msg object to send.
@@ -1555,239 +1687,40 @@ export const Uib = class Uib {
         this._socket.emit(channel, msgToSend)
     } // --- End of Send Msg Fn --- //
 
-    /** Send a standard message to NR
-     * @example uibuilder.send({payload:'Hello'})
-     * @param {object} msg Message to send
-     * @param {string} [originator] A Node-RED node ID to return the message to
-     */
-    send(msg, originator = '') {
-        this._send(msg, this._ioChannels.client, originator)
-    }
-
-    /** Send a control msg to NR
-     * @param {object} msg Message to send
-     */
-    sendCtrl(msg) {
-        this._send(msg, this._ioChannels.control)
-    }
-
-    /** Easily send a msg back to Node-RED on a DOM event
-     * @example In plain HTML/JavaScript
-     *    `<button id="button1" name="button 1" data-fred="jim"></button>`
-     *    $('#button1').onclick = (evt) => {
-     *      uibuilder.eventSend(evt)
-     *    }
-     * @example
-     * In VueJS: `<b-button id="myButton1" @click="doEvent" data-something="hello"></b-button>`
-     * In VueJS methods: `doEvent: uibuilder.eventSend,`
-     *
-     * All `data-` attributes will be passed back to Node-RED,
-     *    use them instead of arguments in the click function.
-     *    All target._ui custom properties are also passed back to Node-RED.
-     *
-     * @param {MouseEvent|any} domevent DOM Event object
-     * @param {string} [originator] A Node-RED node ID to return the message to
+    /** Callback handler for messages from Node-RED
+     * NOTE: `this` is the class here rather the `socket` as would be normal since we bind the correct `this` in the call.
+     *       Use this._socket if needing reference to the socket.
+     * @callback ioSetupFromServer Called from ioSetup/this._socket.on(this.#ioChannels.server, this.stdMsgFromServer.bind(this))
+     * @param {object} receivedMsg The msg object from Node-RED
+     * @this Uib
      */
-    eventSend(domevent, originator = '') { // eslint-disable-line sonarjs/cognitive-complexity
-        // @ts-ignore Handle case where vue messes up `this`
-        if ( this.$attrs ) {
-            log('error', 'Uib:eventSend', '`this` has been usurped by VueJS. Make sure that you wrap the call in a function: `doEvent: function (event) { uibuilder.eventSend(event) },`' )()
-            return
-        }
-        if (!domevent && !event) {
-            log('warn', 'Uib:eventSend', 'Neither the domevent nor the hidden event properties are set. You probably called this function directly rather than applying to an on click event.' )()
-            return
-        }
-        // Handle no argument, e.g. <button onClick="uibuilder.eventSend()"> - event is a hidden variable when fn used in addEventListener
-        if (!domevent || !domevent.constructor) domevent = event
-
-        // The argument must be a DOM event
-        if ((!domevent.constructor.name.endsWith('Event')) || (!domevent.currentTarget)) {
-            log('warn', 'Uib:eventSend', `ARGUMENT NOT A DOM EVENT - use data attributes not function arguments to pass data. Arg Type: ${domevent.constructor.name}`, domevent)()
-            return
-        }
-
-        // Prevent default event action
-        domevent.preventDefault()
-
-        // The target element
-        const target = domevent.currentTarget
-
-        // Get target properties - only shows custom props not element default ones
-        const props = {}
-        Object.keys(target).forEach( key => {
-            if (key.startsWith('_')) return // Exclude private
-            props[key] = target[key]
-        })
-
-        // Attempt to get target attributs - can fail for certain target types
-        const ignoreAttribs = ['class', 'id', 'name']
-        let attribs
-        try {
-            attribs = Object.assign({},
-                ...Array.from(target.attributes,
-                    ( { name, value } ) => {
-                        if ( !ignoreAttribs.includes(name) ) {
-                            return ({ [name]: value })
-                        }
-                        return undefined
-                    }
-                )
-            )
-        } catch (e) {}
-
-        // If target embedded in a form, include the form data
-        let form
-        const frmVals = []
-        if ( target.form ) {
-            form = {}
-            form.valid = target.form.checkValidity()
-            Object.values(target.form).forEach( (frmEl, i) => {
-                const id = frmEl.id !== '' ? frmEl.id : (frmEl.name !== '' ? frmEl.name : `${i}-${frmEl.type}`)
-
-                // We must have both an element id (we may have forced one above) AND
-                // the element type MUST be not undefined - to allow for the extra properties added by frameworks such as Svelte
-                if (id !== '' && frmEl.type) {
-                    // Stupid HTML doesn't use value attrib for checkboxes. So override if value is set to default
-                    if ('checked' in frmEl && frmEl.value === 'on') frmEl.value = frmEl.checked.toString()
-
-                    frmVals.push( { key: id, val: frmEl.value } ) // simplified for addition to msg.payload
-
-                    form[id] = {
-                        'id': frmEl.id,
-                        'name': frmEl.name,
-                        'value': frmEl.value,
-                        'valid': frmEl.checkValidity(),
-                        'type': frmEl.type,
-                    }
-
-                    if (form[id].valid === false) {
-                        const v = frmEl.validity
-                        form[id].validity = {
-                            badInput: v.badInput === true ? v.badInput : undefined,
-                            customError: v.customError === true ? v.customError : undefined,
-                            patternMismatch: v.patternMismatch === true ? v.patternMismatch : undefined,
-                            rangeOverflow: v.rangeOverflow === true ? v.rangeOverflow : undefined,
-                            rangeUnderflow: v.rangeUnderflow === true ? v.rangeUnderflow : undefined,
-                            stepMismatch: v.stepMismatch === true ? v.stepMismatch : undefined,
-                            tooLong: v.tooLong === true ? v.tooLong : undefined,
-                            tooShort: v.tooShort === true ? v.tooShort : undefined,
-                            typeMismatch: v.typeMismatch === true ? v.typeMismatch : undefined,
-                            valueMissing: v.valueMissing === true ? v.valueMissing : undefined,
-                        }
-                    }
-
-                    if (frmEl.dataset) form[id].data = frmEl.dataset
-                }
-            })
-        }
-
-        // Check for CSS Classes
-        let classes
-        try {
-            classes = Array.from(target.classList)
-        } catch (e) {}
-
-        // Each `data-xxxx` attribute is added as a property
-        let payload = { ...target.dataset }
-
-        // Handle Notification events
-        let nprops
-        if ( Object.prototype.toString.call(target) === '[object Notification]') {
-            // Fixed payload for convenience
-            payload = `notification-${target.userAction}`
-            // Capture the notification properties
-            nprops = {
-                // userAction: target.userAction, // uib custom prop: click, close or error
-                actions: target.actions,
-                badge: target.badge,
-                body: target.body,
-                data: target.data,
-                dir: target.dir,
-                icon: target.icon,
-                image: target.image,
-                lang: target.lang,
-                renotify: target.renotify,
-                requireInteraction: target.requireInteraction,
-                silent: target.silent,
-                tag: target.tag,
-                timestamp: target.timestamp,
-                title: target.title,
-                vibrate: target.vibrate,
-            }
-        }
-        // console.log(Object.prototype.toString.call(target))
-
-        // Set up the msg to send - NB: Topic may be added by this._send
-        const msg = {
-            // - this may be an empty Object if no data attributes defined
-            payload: payload,
-
-            _ui: {
-                type: 'eventSend',
-                id: target.id !== '' ? target.id : undefined,
-                name: target.name !== '' ? target.name : undefined,
-                slotText: target.textContent ? target.textContent.substring(0, 255) : undefined,
-
-                form: form,
-                props: props,
-                attribs: attribs,
-                classes: classes,
-
-                notification: nprops,
-
-                event: domevent.type,
-                altKey: domevent.altKey,
-                ctrlKey: domevent.ctrlKey,
-                shiftKey: domevent.shiftKey,
-                metaKey: domevent.metaKey,
-
-                pointerType: domevent.pointerType,
-                nodeName: target.nodeName,
-
-                clientId: this.clientId,
-                pageName: this.pageName,
-                tabId: this.tabId,
-            }
-        }
+    _stdMsgFromServer(receivedMsg) {
 
-        if (frmVals.length > 0) {
-            frmVals.forEach( entry => {
-                msg.payload[entry.key] = entry.val
-            })
-        }
+        // Make sure that msg is an object & not null
+        receivedMsg = makeMeAnObject(receivedMsg, 'payload')
 
-        if (domevent.type === 'change') {
-            // Checkboxes don't have a value!!
-            msg._ui.newValue = msg.payload.value = 'checked' in target ? target.checked : domevent.target.value
-        }
+        // Don't process if the inbound msg is not for us
+        if (receivedMsg._uib && !this._forThis(receivedMsg._uib)) return
+        if (receivedMsg._ui && !this._forThis(receivedMsg._ui)) return
 
-        log('trace', 'Uib:eventSend', 'Sending msg to Node-RED', msg)()
-        if (target.dataset && target.dataset.length === 0) log('warn', 'Uib:eventSend', 'No payload in msg. data-* attributes should be used.')()
+        // @since 2018-10-07 v1.0.9: Work out local time offset from server
+        this._checkTimestamp(receivedMsg)
 
-        this._send(msg, this._ioChannels.client, originator)
-    }
+        // Track how many messages have been received
+        this.set('msgsReceived', ++this.msgsReceived)
 
-    /** Easily send the entire DOM/HTML msg back to Node-RED
-     * @param {string} [originator] A Node-RED node ID to return the message to
-     * @param {boolean} [send] If true (default) directly send response to Node-RED. Is false when calling from Node-RED as a command.
-     * @returns {string} The HTML as a string
-     */
-    htmlSend(originator = '', send = true) {
-        const out = `<!doctype html>\n${document.documentElement.outerHTML}`
+        // Emit specific document events on msg receipt that make it easy for coders to use
+        this._msgRcvdEvents(receivedMsg)
 
-        // Set up the msg to send - NB: Topic may be added by this._send
-        const msg = {
-            payload: out,
-            length: out.length,
-            topic: this.topic,
+        if ( !('_ui' in receivedMsg && !('payload' in receivedMsg)) ) {
+            // Save the msg for further processing
+            this.set('msg', receivedMsg)
         }
 
-        log('trace', 'Uib:htmlSend', 'Sending full HTML to Node-RED', msg)()
+        log('info', 'Uib:ioSetup:stdMsgFromServer', `Channel '${this._ioChannels.server}'. Received msg #${this.msgsReceived}.`, receivedMsg)()
 
-        if (send === true) this._send(msg, this._ioChannels.client, originator)
-        return out
-    }
+        // ! NOTE: Don't try to handle specialist messages here. See _msgRcvdEvents.
+    } // -- End of websocket receive DATA msg from Node-RED -- //
 
     /** Process msg._uib.command - Remember to update #extCommands with new allowed commands
      * @param {object} msg Msg from Node-RED containing a msg._uib object
@@ -1933,205 +1866,266 @@ export const Uib = class Uib {
         }
     } // --- end of _uibCommand ---
 
-    /** Do we want to process something? Check pageName, clientId, tabId. Defaults to yes.
-     * @param {*} obj Either a msg._ui or msg._uib object to check
-     * @returns {boolean} True if we should process the inbound _ui/_uib msg, false if not.
+    /** Send log text to uibuilder's beacon endpoint (works even if socket.io not connected)
+     * @param {string} txtToSend Text string to send
+     * @param {string|undefined} logLevel Log level to use. If not supplied, will default to debug
      */
-    _forThis(obj) {
-        let r = true
+    beaconLog(txtToSend, logLevel) {
+        if (!logLevel) logLevel = 'debug'
+        navigator.sendBeacon('./_clientLog', `${logLevel}::${txtToSend}`)
+    }
 
-        // Is this msg for this pageName?
-        if (obj.pageName && obj.pageName !== this.pageName) {
-            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this page')()
-            r = false
-        }
+    /** Easily send the entire DOM/HTML msg back to Node-RED
+     * @param {string} [originator] A Node-RED node ID to return the message to
+     * @param {boolean} [send] If true (default) directly send response to Node-RED. Is false when calling from Node-RED as a command.
+     * @returns {string} The HTML as a string
+     */
+    htmlSend(originator = '', send = true) {
+        const out = `<!doctype html>\n${document.documentElement.outerHTML}`
 
-        // Is this msg for this clientId?
-        if (obj.clientId && obj.clientId !== this.clientId) {
-            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this clientId')()
-            r = false
+        // Set up the msg to send - NB: Topic may be added by this._send
+        const msg = {
+            payload: out,
+            length: out.length,
+            topic: this.topic,
         }
 
-        // Is this msg for this tabId?
-        if (obj.tabId && obj.tabId !== this.tabId) {
-            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this tabId')()
-            r = false
-        }
+        log('trace', 'Uib:htmlSend', 'Sending full HTML to Node-RED', msg)()
 
-        return r
+        if (send === true) this._send(msg, this._ioChannels.client, originator)
+        return out
     }
 
-    // Handle received messages - Process some msgs internally, emit specific events on document that make it easy for coders to use
-    _msgRcvdEvents(msg) {
-        // Message received
-        this._dispatchCustomEvent('uibuilder:stdMsgReceived', msg)
-
-        // Topic
-        if ( msg.topic ) this._dispatchCustomEvent(`uibuilder:msg:topic:${msg.topic}`, msg)
-
-        // Handle msg._uib special requests
-        if (msg._uib) {
-            // Don't process if the inbound msg is not for us
-            if (!this._forThis(msg._uib)) return
-
-            /** Process a client reload request from Node-RED - as the page is reloaded, everything else is ignored
-             * Note that msg._ui.reload is also actioned via the _ui processing below */
-            if (msg._uib.reload === true) {
-                log('trace', 'Uib:_msgRcvdEvents:_uib:reload', 'reloading')()
-                location.reload()
-                return
-            }
-
-            // Process msg._uib.command messages - allows Node-RED to run uibuilder FE functions
-            if (msg._uib.command) {
-                this._uibCommand(msg)
-                return
-            }
+    /** Send log info back to Node-RED over uibuilder's websocket control output (Port #2)
+     * @param {...*} arguments All arguments passed to the function are added to the msg.payload
+     */
+    logToServer() {
+        this.sendCtrl({
+            uibuilderCtrl: 'client log message',
+            payload: arguments,
+            // "version":"6.1.0-iife.min",
+            _socketId: this._socket.id,
+            // "ip":"::1",
+            clientId: this.clientId,
+            tabId: this.tabId,
+            // "url":"esp-test",
+            pageName: this.pageName,
+            connections: this.connectedNum,
+            lastNavType: this.lastNavType,
+        })
+    }
 
-            // Better to request via msg._ui - these are for backwards compatibility
-            if ( msg._uib.componentRef === 'globalNotification' ) {
-                _ui.showDialog('notify', msg._uib.options, msg)
-            }
-            if ( msg._uib.componentRef === 'globalAlert' ) {
-                _ui.showDialog('alert', msg._uib.options, msg)
-            }
+    /** Easily send a msg back to Node-RED on a DOM event
+     * @example In plain HTML/JavaScript
+     *    `<button id="button1" name="button 1" data-fred="jim"></button>`
+     *    $('#button1').onclick = (evt) => {
+     *      uibuilder.eventSend(evt)
+     *    }
+     * @example
+     * In VueJS: `<b-button id="myButton1" @click="doEvent" data-something="hello"></b-button>`
+     * In VueJS methods: `doEvent: uibuilder.eventSend,`
+     *
+     * All `data-` attributes will be passed back to Node-RED,
+     *    use them instead of arguments in the click function.
+     *    All target._ui custom properties are also passed back to Node-RED.
+     *
+     * @param {MouseEvent|any} domevent DOM Event object
+     * @param {string} [originator] A Node-RED node ID to return the message to
+     */
+    eventSend(domevent, originator = '') { // eslint-disable-line sonarjs/cognitive-complexity
+        // @ts-ignore Handle case where vue messes up `this`
+        if ( this.$attrs ) {
+            log('error', 'Uib:eventSend', '`this` has been usurped by VueJS. Make sure that you wrap the call in a function: `doEvent: function (event) { uibuilder.eventSend(event) },`' )()
+            return
         }
+        if (!domevent && !event) {
+            log('warn', 'Uib:eventSend', 'Neither the domevent nor the hidden event properties are set. You probably called this function directly rather than applying to an on click event.' )()
+            return
+        }
+        // Handle no argument, e.g. <button onClick="uibuilder.eventSend()"> - event is a hidden variable when fn used in addEventListener
+        if (!domevent || !domevent.constructor) domevent = event
 
-        // Handle msg._ui requests
-        if ( msg._ui ) {
-            // Don't process if the inbound msg is not for us
-            if (!this._forThis(msg._ui)) return
-
-            log('trace', 'Uib:_msgRcvdEvents:_ui', 'Calling _uiManager')()
-            this._dispatchCustomEvent('uibuilder:msg:_ui', msg)
-            _ui._uiManager(msg)
+        // The argument must be a DOM event
+        if ((!domevent.constructor.name.endsWith('Event')) || (!domevent.currentTarget)) {
+            log('warn', 'Uib:eventSend', `ARGUMENT NOT A DOM EVENT - use data attributes not function arguments to pass data. Arg Type: ${domevent.constructor.name}`, domevent)()
+            return
         }
-    } // --- end of _msgRcvdEvents ---
 
-    /** Callback handler for messages from Node-RED
-     * NOTE: `this` is the class here rather the `socket` as would be normal since we bind the correct `this` in the call.
-     *       Use this._socket if needing reference to the socket.
-     * @callback ioSetupFromServer Called from ioSetup/this._socket.on(this.#ioChannels.server, this.stdMsgFromServer.bind(this))
-     * @param {object} receivedMsg The msg object from Node-RED
-     * @this Uib
-     */
-    _stdMsgFromServer(receivedMsg) {
+        // Prevent default event action
+        domevent.preventDefault()
 
-        // Make sure that msg is an object & not null
-        receivedMsg = makeMeAnObject(receivedMsg, 'payload')
+        // The target element
+        const target = domevent.currentTarget
 
-        // Don't process if the inbound msg is not for us
-        if (receivedMsg._uib && !this._forThis(receivedMsg._uib)) return
-        if (receivedMsg._ui && !this._forThis(receivedMsg._ui)) return
+        // Get target properties - only shows custom props not element default ones
+        const props = {}
+        Object.keys(target).forEach( key => {
+            if (key.startsWith('_')) return // Exclude private
+            props[key] = target[key]
+        })
 
-        // @since 2018-10-07 v1.0.9: Work out local time offset from server
-        this._checkTimestamp(receivedMsg)
+        // Attempt to get target attributs - can fail for certain target types
+        const ignoreAttribs = ['class', 'id', 'name']
+        let attribs
+        try {
+            attribs = Object.assign({},
+                ...Array.from(target.attributes,
+                    ( { name, value } ) => {
+                        if ( !ignoreAttribs.includes(name) ) {
+                            return ({ [name]: value })
+                        }
+                        return undefined
+                    }
+                )
+            )
+        } catch (e) {}
 
-        // Track how many messages have been received
-        this.set('msgsReceived', ++this.msgsReceived)
+        // If target embedded in a form, include the form data
+        let form
+        const frmVals = []
+        if ( target.form ) {
+            form = {}
+            form.valid = target.form.checkValidity()
+            Object.values(target.form).forEach( (frmEl, i) => {
+                const id = frmEl.id !== '' ? frmEl.id : (frmEl.name !== '' ? frmEl.name : `${i}-${frmEl.type}`)
 
-        // Emit specific document events on msg receipt that make it easy for coders to use
-        this._msgRcvdEvents(receivedMsg)
+                // We must have both an element id (we may have forced one above) AND
+                // the element type MUST be not undefined - to allow for the extra properties added by frameworks such as Svelte
+                if (id !== '' && frmEl.type) {
+                    // Stupid HTML doesn't use value attrib for checkboxes. So override if value is set to default
+                    if ('checked' in frmEl && frmEl.value === 'on') frmEl.value = frmEl.checked.toString()
 
-        if ( !('_ui' in receivedMsg && !('payload' in receivedMsg)) ) {
-            // Save the msg for further processing
-            this.set('msg', receivedMsg)
-        }
+                    frmVals.push( { key: id, val: frmEl.value } ) // simplified for addition to msg.payload
 
-        log('info', 'Uib:ioSetup:stdMsgFromServer', `Channel '${this._ioChannels.server}'. Received msg #${this.msgsReceived}.`, receivedMsg)()
+                    form[id] = {
+                        'id': frmEl.id,
+                        'name': frmEl.name,
+                        'value': frmEl.value,
+                        'valid': frmEl.checkValidity(),
+                        'type': frmEl.type,
+                    }
 
-        // ! NOTE: Don't try to handle specialist messages here. See _msgRcvdEvents.
+                    if (form[id].valid === false) {
+                        const v = frmEl.validity
+                        form[id].validity = {
+                            badInput: v.badInput === true ? v.badInput : undefined,
+                            customError: v.customError === true ? v.customError : undefined,
+                            patternMismatch: v.patternMismatch === true ? v.patternMismatch : undefined,
+                            rangeOverflow: v.rangeOverflow === true ? v.rangeOverflow : undefined,
+                            rangeUnderflow: v.rangeUnderflow === true ? v.rangeUnderflow : undefined,
+                            stepMismatch: v.stepMismatch === true ? v.stepMismatch : undefined,
+                            tooLong: v.tooLong === true ? v.tooLong : undefined,
+                            tooShort: v.tooShort === true ? v.tooShort : undefined,
+                            typeMismatch: v.typeMismatch === true ? v.typeMismatch : undefined,
+                            valueMissing: v.valueMissing === true ? v.valueMissing : undefined,
+                        }
+                    }
 
-    } // -- End of websocket receive DATA msg from Node-RED -- //
+                    if (frmEl.dataset) form[id].data = frmEl.dataset
+                }
+            })
+        }
 
-    /** Handles original control msgs (not to be confused with "new" msg._uib controls)
-     * @param {*} receivedCtrlMsg The msg received on the socket.io control channel
-     */
-    _ctrlMsgFromServer(receivedCtrlMsg) {
+        // Check for CSS Classes
+        let classes
+        try {
+            classes = Array.from(target.classList)
+        } catch (e) {}
 
-        // Make sure that msg is an object & not null
-        if (receivedCtrlMsg === null) {
-            receivedCtrlMsg = {}
-        } else if (typeof receivedCtrlMsg !== 'object') {
-            const msg = {}
-            msg['uibuilderCtrl:' + this._ioChannels.control] = receivedCtrlMsg
-            receivedCtrlMsg = msg
-        }
+        // Each `data-xxxx` attribute is added as a property
+        let payload = { ...target.dataset }
 
-        // @since 2018-10-07 v1.0.9: Work out local time offset from server
-        this._checkTimestamp(receivedCtrlMsg)
+        // Handle Notification events
+        let nprops
+        if ( Object.prototype.toString.call(target) === '[object Notification]') {
+            // Fixed payload for convenience
+            payload = `notification-${target.userAction}`
+            // Capture the notification properties
+            nprops = {
+                // userAction: target.userAction, // uib custom prop: click, close or error
+                actions: target.actions,
+                badge: target.badge,
+                body: target.body,
+                data: target.data,
+                dir: target.dir,
+                icon: target.icon,
+                image: target.image,
+                lang: target.lang,
+                renotify: target.renotify,
+                requireInteraction: target.requireInteraction,
+                silent: target.silent,
+                tag: target.tag,
+                timestamp: target.timestamp,
+                title: target.title,
+                vibrate: target.vibrate,
+            }
+        }
+        // console.log(Object.prototype.toString.call(target))
 
-        this.set('ctrlMsg', receivedCtrlMsg)
-        this.set('msgsCtrlReceived', ++this.msgsCtrlReceived)
+        // Set up the msg to send - NB: Topic may be added by this._send
+        const msg = {
+            // - this may be an empty Object if no data attributes defined
+            payload: payload,
 
-        log('trace', 'Uib:ioSetup:_ctrlMsgFromServer', `Channel '${this._ioChannels.control}'. Received control msg #${this.msgsCtrlReceived}`, receivedCtrlMsg)()
+            _ui: {
+                type: 'eventSend',
+                id: target.id !== '' ? target.id : undefined,
+                name: target.name !== '' ? target.name : undefined,
+                slotText: target.textContent ? target.textContent.substring(0, 255) : undefined,
 
-        /** Process control msg types */
-        switch (receivedCtrlMsg.uibuilderCtrl) {
-            // Node-RED is shutting down
-            case 'shutdown': {
-                log('info', `Uib:ioSetup:${this._ioChannels.control}`, '❌ Received "shutdown" from server')()
-                this.set('serverShutdown', undefined)
-                break
-            }
+                form: form,
+                props: props,
+                attribs: attribs,
+                classes: classes,
 
-            /** We are connected to the server - 1st msg from server */
-            case 'client connect': {
-                log('trace', `Uib:ioSetup:${this._ioChannels.control}`, 'Received "client connect" from server')()
-                log('info', `Uib:ioSetup:${this._ioChannels.control}`, `✅ Server connected. Version: ${receivedCtrlMsg.version}\nServer time: ${receivedCtrlMsg.serverTimestamp}, Sever time offset: ${this.serverTimeOffset} hours`)()
+                notification: nprops,
 
-                if ( !Uib._meta.version.startsWith(receivedCtrlMsg.version.split('-')[0]) ) {
-                    log('warn', `Uib:ioSetup:${this._ioChannels.control}`, `Server version (${receivedCtrlMsg.version}) not the same as the client version (${Uib._meta.version})`)()
-                }
+                event: domevent.type,
+                altKey: domevent.altKey,
+                ctrlKey: domevent.ctrlKey,
+                shiftKey: domevent.shiftKey,
+                metaKey: domevent.metaKey,
 
-                if (this.autoSendReady === true) { // eslint-disable-line no-lonely-if
-                    log('trace', `Uib:ioSetup:${this._ioChannels.control}/client connect`, 'Auto-sending ready-for-content/replay msg to server')
-                    // @since 0.4.8c Add cacheControl property for use with node-red-contrib-infocache
-                    // @since 6.1.0 Don't bother, we use the "client connect" msg
-                    // this._send({
-                    //     'uibuilderCtrl': 'ready for content',
-                    //     'cacheControl': 'REPLAY',
-                    // }, this._ioChannels.control)
-                }
+                pointerType: domevent.pointerType,
+                nodeName: target.nodeName,
 
-                break
+                clientId: this.clientId,
+                pageName: this.pageName,
+                tabId: this.tabId,
             }
+        }
 
-            default: {
-                log('trace', `uibuilderfe:ioSetup:${this._ioChannels.control}`, `Received ${receivedCtrlMsg.uibuilderCtrl} from server`)
-                // Anything else to do for other control msgs?
-            }
+        if (frmVals.length > 0) {
+            frmVals.forEach( entry => {
+                msg.payload[entry.key] = entry.val
+            })
+        }
 
-        } // ---- End of process control msg types ---- //
+        if (domevent.type === 'change') {
+            // Checkboxes don't have a value!!
+            msg._ui.newValue = msg.payload.value = 'checked' in target ? target.checked : domevent.target.value
+        }
 
-    } // -- End of websocket receive CONTROL msg from Node-RED -- //
+        log('trace', 'Uib:eventSend', 'Sending msg to Node-RED', msg)()
+        if (target.dataset && target.dataset.length === 0) log('warn', 'Uib:eventSend', 'No payload in msg. data-* attributes should be used.')()
 
-    /** Send log text to uibuilder's beacon endpoint (works even if socket.io not connected)
-     * @param {string} txtToSend Text string to send
-     * @param {string|undefined} logLevel Log level to use. If not supplied, will default to debug
+        this._send(msg, this._ioChannels.client, originator)
+    }
+
+    /** Send a standard message to NR
+     * @example uibuilder.send({payload:'Hello'})
+     * @param {object} msg Message to send
+     * @param {string} [originator] A Node-RED node ID to return the message to
      */
-    beaconLog(txtToSend, logLevel) {
-        if (!logLevel) logLevel = 'debug'
-        navigator.sendBeacon('./_clientLog', `${logLevel}::${txtToSend}`)
+    send(msg, originator = '') {
+        this._send(msg, this._ioChannels.client, originator)
     }
 
-    /** Send log info back to Node-RED over uibuilder's websocket control output (Port #2)
-     * @param {...*} arguments All arguments passed to the function are added to the msg.payload
+    /** Send a control msg to NR
+     * @param {object} msg Message to send
      */
-    logToServer() {
-        this.sendCtrl({
-            uibuilderCtrl: 'client log message',
-            payload: arguments,
-            // "version":"6.1.0-iife.min",
-            _socketId: this._socket.id,
-            // "ip":"::1",
-            clientId: this.clientId,
-            tabId: this.tabId,
-            // "url":"esp-test",
-            pageName: this.pageName,
-            connections: this.connectedNum,
-            lastNavType: this.lastNavType,
-        })
+    sendCtrl(msg) {
+        this._send(msg, this._ioChannels.control)
     }
 
     //#endregion -------- ------------ -------- //
@@ -2604,7 +2598,7 @@ if (!window['$']) {
     /** @type {HTMLElement} */
     window['$'] = window['uibuilder'].$ // document.querySelector.bind(document)
 } else {
-    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` instead.')
+    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` or `uib.$` instead.')
 }
 // Assign `$$` to global window object unless it is already in use.
 // Note that this is also available as `uibuilder.$$`.
@@ -2612,7 +2606,16 @@ if (!window['$$']) {
     /** @type {HTMLElement} */
     window['$$'] = window['uibuilder'].$$ // document.querySelectorAll.bind(document)
 } else {
-    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` instead.')
+    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` or `uib.$$` instead.')
+}
+
+// Assign `$ui` to global window object unless it is already in use.
+// Note that this is also available as `uibuilder.$$`.
+if (!window['$ui']) {
+    /** @type {HTMLElement} */
+    window['$ui'] = window['uibuilder'].$ui // document.querySelectorAll.bind(document)
+} else {
+    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$ui`, it is already in use. Use `uibuilder.$ui` or `uib.$ui` instead.')
 }
 
 // Can import as `import uibuilder from ...` OR `import {uibuilder} from ...`

From e74c622fcd32e67954960192215f6a726330d66e Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Fri, 1 Dec 2023 14:10:05 +0000
Subject: [PATCH 18/78] Updates

---
 CHANGELOG.md                         | 42 +++++++++++++++++++
 docs/client-docs/config-driven-ui.md | 60 +++++++++++++++++++++++++---
 docs/client-docs/functions.md        | 34 ++++++++++++++++
 docs/roadmap.md                      | 13 ++++--
 4 files changed, 139 insertions(+), 10 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index d2afe603..3db5d932 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,10 +8,30 @@ Please see the documentation for archived changelogs - a new archive is produced
 
 ## To Fix
 
+* `uib-save` import - initial deployment does not connect to node - need to clear the entry
+* `jsdom` v22 is pinned to node.js v16
+
 ## To Do
 
 * update the `remote-commands` example
+* Add new low-code example
 * Update docs for ctrl msgs and msg._uib return data to say that anything set via the socket.io auth can only update when the client reconnects. Also document clientTimeDifference
+* Fixup CSS for showDialog (notifications/alerts) - left/right margin on p and svg need removing. Maybe on toast-head class too. Parent class is "toast"
+
+* More flexible low-code class attribute handling.
+  * In ui.js
+    * [ ] Update the low-code schema's with add/remove/replace `classes` property
+    * Update all fns to use the extra property
+  * In nodes - update to allow using array of classes and to have add/remove class arrays
+    * In uib-update
+    * In uib-element
+    * In uib-tag
+
+## Ideas
+
+* `uib-template` - New node to take a msg._ui template input and update parts of it belore sending (e.g. parent, id, ...). `uib-override` or `uib-config`? [Ref](https://discourse.nodered.org/t/an-idea-for-third-party-ui-in-ui-builder/83196/4?u=totallyinformation)
+* `<uib-loop>`. [Ref](https://discourse.nodered.org/t/ui/82818/33?u=totallyinformation)
+* Enhance `uib-save` - allow URL to be driven by msg or context (just add new options to select, don't bother with typed input)
 
 ------------
 
@@ -23,27 +43,49 @@ Please see the documentation for archived changelogs - a new archive is produced
 
 * New `navigate` function and command. Triggers a page change or a route change either from front-end JavaScript or via a command message in Node-RED.
 * New `scrollTo` function and command. Scrolls the visible page to a specific location either from front-end JavaScript or via a command message in Node-RED.
+* No-code and low-code features now all allow more flexible class handling (add, remove, and replace using lists). HTML element data outputs also now return an array of class names, not just a combined string.
 * Front-end commands issued from Node-RED can now take a `quiet` option set to `true` to prevent the return message. e.g. `{"_uib": {"command":"navigate","prop":"#newroute","quiet":true}}`
+* Front-end developers now have full access to the `ui.js` library via the `$ui` global.
 
 ### `uibrouter`
 
 * [Issue #232](https://github.com/TotallyInformation/node-red-contrib-uibuilder/issues/232) - Ensure origin script is removed after re-applying to ensure only 1 instance shows instead of 2.
 
+### `uib-save`
+
+* **FIXED** usePageName logic.
+
 ### Client library
 
 * **FIXED** - Some reported client data was incorrect. Notably the `connections`, and `lastNavType` properties. The `connections` property has now been corrected. The `lastNavType`, I now realise will never be correctly updated by the client and therefore it has been removed. Fixing these has also resulted in some simplification of the client code.
 
+* **NEW** - `$ui` is a new global created by the library which gives full access to the `ui.js` library, that library presents an instance of the `Ui` class. So typing `$ui.version` in the browser dev console will return the current version of the ui library. Also available as `uibuilder.$ui` just in case `$ui` was already taken when the uibuilder library is loaded.
+
+* **NEW ui functions** - `addClass(classNames, el)`, `removeClass(classNames, el)` - see `ui.js` below for details.
+
 * **NEW Function and Command** - `navigate(url)` - Load a new web page or change routes. Can be triggered from Node-RED with msg `{"_uib": {"command":"navigate","prop":"#newroute"}}`. See [Client Functions (navigate) in the docs](client-docs/functions#navigate) for details. URL's can be full, relative (to the current page) or routing (hashes). Obviously, can be called in front-end JavaScript as well as `uibuilder.navigate('./page2.html')` etc.
 * **NEW Function and Command** - `scrollTo(cssSelector)` - Scroll visible page to an element based on a CSS Selector. See [Client Functions (scrollTo) in the docs](client-docs/functions#scrollTo) for details. `top`, `start`, `bottom`, `end` can be used as shortcuts for the top/bottom of the page. An optional 2nd parameter gives more control.
 
 * Added `quiet` property to remote command processing. Set `msg._uib.quiet` to `true` to stop the library returning a message to Node-RED on completion of the command.
+* When using `uiGet` or `nodeGet` functions/commands, if class attribute is present, an additional `classes` property is returned which is an array of the class names.
 
 * **DEPRECATED Function** - `elementIsVisible` - Was not working correctly and a fix is complex. Will revisit in the future. Let me know if you need this function. This would normally be a breaking change but the function is still there - it returns a console msg and a node-red msg still - and as it wasn't working, I doubt anyone has used it.
+* Moved  `$` and `$$` functions to `ui.js` library. This library references them. So no change to usage.
+
+### `ui.js` low-code->HTML hydration library
+
+* **NEW functions** - `addClass(classNames, el)`, `removeClass(classNames, el)` - Add/remove classes individually. `classNames` can be a single class name, or an array of class names. For `removeClass`, an empty string, null or undefined can be used to remove all classes (removes the class attribute).
+* When using `uiGet` or `nodeGet` functions/commands, if class attribute is present, an additional `classes` property is returned which is an array of the class names.
+* Improved separation between `payload` and `content` in "alert" and "notify" methods.
+
+* Allowed low-code `attributes` property to be an array when specifying classes to apply. All classes in the array will be applied.
+* Moved `$` and `$$` functions to this library from uibuilder.
 
 ### Documentation
 
 * Heading levels 3+ have been made lighter to better differentiate them visually.
 * The front-end client functions page now has an alphabetical list of functions.
+* Improved low-code documentation for the `notify` and `alert` methods.
 
 
 ## [v6.7.0](https://github.com/TotallyInformation/node-red-contrib-uibuilder/compare/v6.6.0...v6.7.0)
diff --git a/docs/client-docs/config-driven-ui.md b/docs/client-docs/config-driven-ui.md
index faba1d15..4f8a7c68 100644
--- a/docs/client-docs/config-driven-ui.md
+++ b/docs/client-docs/config-driven-ui.md
@@ -491,8 +491,9 @@ This is the method used by the `uib-update` node. Dump output from that node to
         // List of component instances to update on the page - results in 1 or more HTML custom elements being selected and updated
         "components": [
             {
-                // Only 1 of these four properties will be used to search. 
-                // In the order of preference id > selector > name > type
+                /** Only 1 of these four properties will be used to search. 
+                 *  In the order of preference id > selector > name > type
+                 */
 
                 // The most direct way to select a single element
                 "id": "...",
@@ -503,6 +504,10 @@ This is the method used by the `uib-update` node. Dump output from that node to
                 // A generic CSS selector can be specified here as well. e.g. "div" or "p#classname", etc.
                 "type": "...",
                 
+                /** You can use as many or as few of the following as you like in an update.
+                 *  For example, only updating a single attribute.
+                 */
+
                 // Optional. Text or HTML to add to slot - if not present, the contents of msg.payload will be used. 
                 // This allows multi-components to have their own slot content. 
                 // However, the payload is not passed on to sub-components
@@ -518,6 +523,23 @@ This is the method used by the `uib-update` node. Dump output from that node to
                     // ... not recommended to include `onClick or similar event handlers, specify those in the events property below ...
                 },
 
+                // Optional. Update the elements classes - USE ONLY ONE STYLE (object or array)
+                "classes": {
+                    // Optional. Add a set of classes - processed in order with remove
+                    "add": [
+                        "myclass1", "myclass2",
+                    ],
+                    // Optional. Remove a set of classes - processed in order with add
+                    "remove": [
+                        "myclass2", "myclass3",
+                    ],
+                }
+                // OR - use an array to replace all existing classes
+                //      a convenient alternative to setting a class attribute string
+                // "classes": [
+                //     "myclass1", "myclass3",
+                // ],
+
                 // Optional. properties to be added to/replaced on the element. Unlike attributes, these can contain any data.
                 // Take care to avoid name clashes with internal properties or bad things are likely to happen!
                 // Most useful when working with ECMA Components though will work with custom front-end code as well.
@@ -557,9 +579,13 @@ Same as sending `msg._uib.reload`. But this method is preferred.
 
 Overlay a pop-over notification.
 
-Old-style `msg._uib.componentRef = 'globalNotification'` also works. But this method is preferred.
+Old-style `msg._uib.componentRef = 'globalNotification'` also works. But this method is preferred. Note that this is different to the `notification` command which shows an OS toast notification, this shows an on-page notification. Also note that you can use `uibuilder.showDialog(type, ui, msg)` in front-end code for the same effect.
+
+Defaults to auto-timeout after a 10 seconds.
 
-Defaults to auto-timeout.
+For accessibility, the wrapper element for all notifications is given `role="dialog"` and `aria-label="Toast message`. The wrapper element for each individual notification is given `role="alertdialog"` and `aria-modal="true"`.
+
+Note that the "alert" method (see next section) is similar but does not autohide and has an additional warning icon.
 
 ### HTML Tags
 
@@ -569,16 +595,38 @@ A new `<div id="toast">` element is added to `toaster`.
 
 #### Schema
 
-variant, title/topic, payload/content, autohide, noAutoHide/autohide, autoHideDelay/delay, appendToast, modal
+```jsonc
+{
+    "_ui": {
+        // REQUIRED
+        "method": "notify",
+
+        // Colour variant: error, warn, info, success, etc - can be ANY class name
+        "variant": "warn",
+
+        // Overrides msg.topic which is used if this isn't specified
+        "title": "My Title",
+        // msg.payload is used as message content, this is appended
+        "content": "Some content to show",
+        // Defaults to true, set to false to require user to cancel
+        "autohide": true,
+        // Delay time in milliseconds for autohide, default is 10s
+        // If present, automatically turns on `autohide`
+        "autoHideDelay": 10000,
+    }
+}
+```
 
 ## Method: alert
 
-Overlay an alert notification
+Overlay an alert notification. Alerts can be stacked. Click anywhere on-page to dismiss all alerts, on an individual alert to dismiss only it.
 
 Old-style `msg._uib.componentRef = 'globalAlert'` also works. But this method is preferred.
 
 Uses the same schema and styles as the `notify` method. Except that autohide is set to false, modal is set to true and the content is prefixed by an alert symbol.
 
+For accessibility, the wrapper element for all notifications is given `role="dialog"` and `aria-label="Toast message`. The wrapper element for each individual notification is given `role="alertdialog"` and `aria-modal="true"`.
+
 ---
 
 ## Manipulating `msg._ui`
diff --git a/docs/client-docs/functions.md b/docs/client-docs/functions.md
index b453c57f..0f9c58e1 100644
--- a/docs/client-docs/functions.md
+++ b/docs/client-docs/functions.md
@@ -211,6 +211,21 @@ In addition, internal message handling will recognise standard messages from nod
 
 For functions with no descriptions, please refer to the code. In general, these will not need to be used in your own code.
 
+### `addClass(classNames, el)` - Add one or more classes to an element :id=addClass
+
+`classNames` can be a string to add a single class or an array of strings for multiple classes.
+
+`el` must be a single HTML element, e.g. `$('#more')`
+
+```javascript
+uibuilder.addClass('myclass', $('#more'))
+uibuilder.addClass(['class1', 'class2'], $('#more'))
+```
+
+See also [removeClass](#removeClass). Uses [`el.classList.add`](https://developer.mozilla.org/en-US/docs/Web/API/DOMTokenList/add)
+
+Note that if you want to _toggle_ a class on/off, use the HTML DOM: `$('#more').classList.toggle('myclass')`. See [MDN DOMTokenList/toggle](https://developer.mozilla.org/en-US/docs/Web/API/DOMTokenList/toggle) for details.
+
 ### `convertMarkdown(mdText)` - Convert's Markdown text input to HTML :id=convertMarkdown
 
 Returns an HTML string converted from the Markdown input text. Only if the Markdown-IT library is loaded, otherwise just returns the input text.
@@ -353,6 +368,22 @@ When returning the response to Node-RED, the following style of msg is output:
 }
 ```
 
+### `removeClass(classNames, el)` - Remove all, one or more classes from an element :id=removeClass
+
+`classNames` can be a string to remove a single class, an array of strings for multiple classes. Or can be an empty string, `null` or `undefined` to remove all classes (will remove the `class` attribute).
+
+`el` must be a single HTML element, e.g. `$('#more')`
+
+```javascript
+uibuilder.removeClass(null, $('#more')) // remove all
+uibuilder.removeClass('myclass', $('#more')) // remove 1
+uibuilder.removeClass(['class1', 'class2'], $('#more')) // remove multiple
+```
+
+See also [addClass](#addClass). Uses [`el.classList.remove`](https://developer.mozilla.org/en-US/docs/Web/API/DOMTokenList/remove)
+
+Note that if you want to _toggle_ a class on/off, use the HTML DOM: `$('#more').classList.toggle('myclass')`. See [MDN DOMTokenList/toggle](https://developer.mozilla.org/en-US/docs/Web/API/DOMTokenList/toggle) for details.
+
 ### `replaceSlot(el, component)` - Replace or add an HTML element's slot from text or an HTML string
 
 This function is mostly for internal use.
@@ -710,6 +741,8 @@ If examining the library code, please remember that functions starting with `_`
 
 * [`$`](#$)
 * [`$$`](#$$)
+* [`$ui`](#$ui)§ - Reference to the ui.js library, not a function
+* [`addClass`](#addClass)§
 * [`beaconLog`](#beaconLog)
 * [`cancelChange`](#cancelChange)
 * [`cancelTopic`](#cancelTopic)
@@ -737,6 +770,7 @@ If examining the library code, please remember that functions starting with `_`
 * [`notify`](#notify)
 * [`onChange`](#onChange)
 * [`onTopic`](#onTopic)
+* [`removeClass`](#removeClass)§
 * [`removeStore`](#removeStore)
 * [`replaceSlot`](#replaceSlot)§
 * [`replaceSlotMarkdown`](#replaceSlotMarkdown)§
diff --git a/docs/roadmap.md b/docs/roadmap.md
index 4c3b5cf9..eb1f9b97 100644
--- a/docs/roadmap.md
+++ b/docs/roadmap.md
@@ -3,7 +3,7 @@ title: uibuilder Roadmap
 description: >
   This page outlines the future direction of uibuilder. Including specific things that will almost certainly happen as well as more speculative ideas.
 created: 2022-02-01 11:15:27
-lastUpdated: 2023-11-21 18:12:36
+lastUpdated: 2023-11-25 15:13:55
 ---
 
 Is there something in this list you would like to see prioritised? Is there something you could help with? Please get in touch via the [Node-RED forum](https://discourse.nodered.org/). Alternatively, you can start a [discussion on GitHub](https://github.com/TotallyInformation/node-red-contrib-uibuilder/discussions) or [raise a GitHub issue](https://github.com/TotallyInformation/node-red-contrib-uibuilder/issues).
@@ -74,6 +74,10 @@ To see what is currently being developed, please look at the "Unreleased" sectio
   * probably chart
   * How to pass data through?
 
+* New node: `uib-template` -  New node to take a msg._ui template input and update parts of it belore sending (e.g. parent, id, ...). `uib-override` or `uib-config`? [Ref](https://discourse.nodered.org/t/an-idea-for-third-party-ui-in-ui-builder/83196/4?u=totallyinformation).
+
+* New node: `uib-event` - Outputs uibuilder standard messages (or maybe both std and control) but is separate from the uibuilder instance node and can be filtered by user, client, page as well as the instance.
+
 
 
 ### Updates to `uibuilder` node
@@ -115,7 +119,6 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 * Auto-generate web manifest.
 * Add actions: open page? open docs? using RED.actions editor API. [ref](https://nodered.org/docs/api/ui/actions/)
 
-* Switch tooltips to using aria-label with hover CSS as in the new node.
 * Remove scripts/css flags from uibuilder panel, no longer in use (not while old client library still in use)
 * Better icons! See https://discourse.nodered.org/t/wish-for-new-nodes/73858/20
 * Consider adding an action for when a `uibuilder` node is selected - would open the web page. https://discourse.nodered.org/t/call-link-from-node-red-editor-ctrl-shift-d/73388/4
@@ -404,10 +407,12 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 * ?? Consider if worth adding a way to update a front-end javascript variable directly ??
 * New type option "Template" - Replaces the selected element with a template clone. Then applies attribs/slot if required. [Ref](https://developer.mozilla.org/en-US/docs/web/html/element/template)
 
+### Shared Editor Code Library `ti-common.js` and `ti-common.css`
+
+* Add `isNew` flag that indicates if a node instance has not yet been deployed. (e.g. new paste or import or drag from palatte)
 
 ### client Library
-* Add client time offset from server to standard client metadata. [ref](https://discourse.nodered.org/t/time-zone-in-a-z-in-node-red/82537/7?u=totallyinformation)
-* [**STARTED**] Ability to visually show all uibuilder managed variables.
+* [**STARTED**] Ability to visually show all uibuilder managed variables. 
 * A way to show and change uib-brand variables visually?
 * Add extra optional flag to set() to allow saving to localStorage - where set, auto-load on (re)load
 

From 87094e74d5eea72e5469682e89370dd598bc279e Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Sun, 3 Dec 2023 12:53:00 +0000
Subject: [PATCH 19/78] All fs dependencies moved to libs/fs.js

---
 nodes/libs/web.js | 28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/nodes/libs/web.js b/nodes/libs/web.js
index c10dabf4..1181a21e 100644
--- a/nodes/libs/web.js
+++ b/nodes/libs/web.js
@@ -30,9 +30,7 @@
  */
 
 const path = require('path')
-const fs = require('fs')
-// const fs = require('fs-extra') // only used for ensureDirSync
-const fg = require('fast-glob')
+const fslib = require('./fs.js')
 const serveIndex = require('serve-index')
 const express = require('express')
 const tilib = require('./tilib')
@@ -396,11 +394,11 @@ class UibWeb {
         const log = this.log
 
         try {
-            fs.accessSync( path.join(uib.masterStaticFeFolder, defaultPageName), fs.constants.R_OK )
-            log.trace(`[uibuilder:web:setMasterStaticFolder] Using master production build folder. ${uib.masterStaticFeFolder}`)
+            fslib.accessSync( path.join(uib.masterStaticFeFolder, defaultPageName), 'r' )
+            log.trace(`[uibuilder:web:setMasterStaticFolder] Using master production build folder. '${uib.masterStaticFeFolder}'`)
             this.masterStatic = uib.masterStaticFeFolder
         } catch (e) {
-            throw new Error(`setMasterStaticFolder: Cannot serve master production build folder. ${uib.masterStaticFeFolder}`)
+            throw new Error(`setMasterStaticFolder: Cannot serve master production build folder, cannot access to read: '${uib.masterStaticFeFolder}'`)
         }
     } // --- End of setMasterStaticFolder() --- //
 
@@ -613,7 +611,7 @@ class UibWeb {
 
             if (this.app.get('view engine')) {
                 filePath = path.join(pathRoot, `${requestedView.name}.ejs`)
-                if (fs.existsSync(filePath)) {
+                if (fslib.existsSync(filePath)) {
                     // console.log('>> render >>', requestedView.name, filePath) //! TODO - remove
                     try {
                         // res.render( path.join(uib.rootFolder, node.url, 'views', requestedView.name), {foo:'Crunchy', footon: 'bar stool', _env: node.context().global.get('_env')} )
@@ -788,7 +786,7 @@ class UibWeb {
         if ( node.sourceFolder === undefined ) {
             try {
                 // Check if local dist folder contains an index.html & if NR can read it - fall through to catch if not
-                fs.accessSync( path.join(node.customFolder, 'dist', defaultPageName), fs.constants.R_OK )
+                fslib.accessSync( path.join(node.customFolder, 'dist', defaultPageName), 'r' )
                 // If the ./dist/index.html exists use the dist folder...
                 customStatic = 'dist'
                 log.trace(`[uibuilder:web:setupInstanceStatic:${node.url}] Using local dist folder`)
@@ -806,15 +804,15 @@ class UibWeb {
         // Does the customStatic folder exist? If not, then create it
         try {
             // With recursive, will create missing parents and does not error if parents already exist
-            fs.mkdirSync( customFull, {recursive:true} )
-            // fs.ensureDirSync( customFull ) // requires fs-extra
+            fslib.mkdirSync( customFull, { recursive: true } )
+            // fslib.ensureDirSync( customFull )
             log.trace(`[uibuilder:web:setupInstanceStatic:${node.url}] Using local ${customStatic} folder`)
         } catch (e) {
             node.warn(`[uibuilder:web:setupInstanceStatic:${node.url}] Cannot create or access ${customFull} folder, no pages can be shown. Error: ${e.message}`)
         }
 
         // Does it contain an index.html file? If not, then issue a warn
-        if ( !fs.existsSync( path.join(customFull, defaultPageName) ) ) {
+        if ( !fslib.existsSync( path.join(customFull, defaultPageName) ) ) {
             node.warn(`[uibuilder:web:setupInstanceStatic:${node.url}] Cannot show default page, index.html does not exist in ${customFull}.`)
         }
 
@@ -837,7 +835,7 @@ class UibWeb {
         const log = this.log
 
         // Allow all .js files in api folder to be loaded, always returns an array - NB: Fast Glob requires fwd slashes even on Windows
-        const apiFiles = fg.sync(`${uib.rootFolder}/${node.url}/api/*.js`)
+        const apiFiles = fslib.fgSync(`${uib.rootFolder}/${node.url}/api/*.js`)
         // console.log('>> apiFiles >>', `${uib.rootFolder}/${node.url}/api/*.js`, apiFiles)
         apiFiles.forEach( instanceApiPath => {
             // console.log('>> api file >>', instanceApiPath)
@@ -1132,7 +1130,9 @@ class UibWeb {
         this.routers.instances[node.url].push( { name: 'Client Log', path: logUrl, desc: 'Client beacon log back to Node-RED', type: 'POST', folder: 'N/A' } )
     }
 
-    /** If allowed and if any exist, add instance custom routes from <uibRoot>/<node.url>/routes/*.js */
+    /** If allowed and if any exist, add instance custom routes from <uibRoot>/<node.url>/routes/*.js
+     * @param {uibNode} node configuration data for this instance
+     */
     addInstanceCustomRoutes(node) {
         // Reference static vars
         const uib = this.uib
@@ -1142,7 +1142,7 @@ class UibWeb {
         // Is this capability turned on in settings.js?
 
         // Add routers from each <uibRoot>/<node.url>/routes/*.js file (Empty list if fldr doesn't exist or no files)
-        const routeFiles = fg.sync(`${uib.rootFolder}/${node.url}/routes/*.js`)
+        const routeFiles = fslib.fgSync(`${uib.rootFolder}/${node.url}/routes/*.js`)
         routeFiles.forEach( routeFilePath => {
             let instanceRouteFile = {}
             let routeKeys = []

From 207c2df2ccbc62a50c176a444833a9f372c6ed1e Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Sun, 3 Dec 2023 15:14:15 +0000
Subject: [PATCH 20/78] Misc tests

---
 tests/fstests.js | 4 ++++
 tests/uuid.js    | 9 +++++++++
 2 files changed, 13 insertions(+)
 create mode 100644 tests/fstests.js
 create mode 100644 tests/uuid.js

diff --git a/tests/fstests.js b/tests/fstests.js
new file mode 100644
index 00000000..7b3728f7
--- /dev/null
+++ b/tests/fstests.js
@@ -0,0 +1,4 @@
+
+const fsNative = require('fs')
+
+console.log(fsNative.existsSync('.'))
diff --git a/tests/uuid.js b/tests/uuid.js
new file mode 100644
index 00000000..2e9d2d70
--- /dev/null
+++ b/tests/uuid.js
@@ -0,0 +1,9 @@
+let crypto;
+try {
+  crypto = require('node:crypto');
+} catch (err) {
+  console.log('crypto support is disabled!');
+}
+// const options = {}
+// crypto.randomUUID(options)
+// crypto.randomUUID()

From f0ce9e7678e1b6be2b76507be23aee0a33f8b719 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Sun, 3 Dec 2023 15:15:54 +0000
Subject: [PATCH 21/78] Rename uibFs to fslib. Add sendToFe function ref to
 instance. More fs calls move to fslib.

---
 docs/dev/uibuilder-js.md | 130 ++++++++++++++++++---------------------
 nodes/uibuilder.js       |  16 ++---
 2 files changed, 68 insertions(+), 78 deletions(-)

diff --git a/docs/dev/uibuilder-js.md b/docs/dev/uibuilder-js.md
index be81c294..127f30bf 100644
--- a/docs/dev/uibuilder-js.md
+++ b/docs/dev/uibuilder-js.md
@@ -9,27 +9,9 @@ lastUpdated: 2022-11-26 16:28:09
 !> This document needs updating, it is incomplete.
 
 - [Key processing elements](#key-processing-elements)
-  - [Installation](#installation)
-  - [Global Initialisation](#global-initialisation)
-  - [Instance Initialisation](#instance-initialisation)
-  - [Adding staticServer paths for vendor packages](#adding-staticserver-paths-for-vendor-packages)
-  - [Client Connection](#client-connection)
-  - [Client Disconnection](#client-disconnection)
-- [Global/Module Variables](#globalmodule-variables)
-  - [`uib` {Object} \[Module global\]](#uib-object-module-global)
-  - [Other variables](#other-variables)
-- [uibuilder Node Instance Variables](#uibuilder-node-instance-variables)
-  - [From the admin Editor ui](#from-the-admin-editor-ui)
-    - [Advanced Settings](#advanced-settings)
-    - [Security Related](#security-related)
-    - [Credentials](#credentials)
-  - [Locally configured (not set in Editor)](#locally-configured-not-set-in-editor)
-  - [Internals \& Typedef](#internals--typedef)
+- [Global/Module properties](#globalmodule-properties)
+- [uibuilder Node Instance properties](#uibuilder-node-instance-properties)
 - [Functions/Methods](#functionsmethods)
-  - [Module level](#module-level)
-  - [Instance level](#instance-level)
-  - [Utility Classes](#utility-classes)
-  - [Utility Functions](#utility-functions)
 - [Admin API's](#admin-apis)
 
 ## Key processing elements
@@ -94,7 +76,7 @@ When a client disconnects for any reason (page reload, tab closed, browser crash
 
 Note that if a client disconnects then reconnects it will have a different `_socketId` property.
 
-## Global/Module Variables
+## Global/Module properties
 
 ### `uib` {Object} [Module global]
 
@@ -190,11 +172,11 @@ Note that if a client disconnects then reconnects it will have a different `_soc
 
 * `degitEmitter` {Function}: Event emitter for degit, populated on 1st use. See POST admin API. Only used if an external template is loaded.
 
-### Other variables
+### Other properties
 
 * `userDir` {String}: The current userDir folder. `RED.settings.userDir`.
   
-## uibuilder Node Instance Variables
+## uibuilder Node Instance properties
 
 Each instance of the uibuilder node has the following variables.
 
@@ -229,18 +211,6 @@ Each instance of the uibuilder node has the following variables.
   an index page view showing the source files available. Turning this on in production would be
   unwise as it would be a security issue. If turned on, resulting URL is `<httpNodeRoot>/<node.url>/idx`.
 
-#### Security Related
-
-* `node.useSecurity` {Boolean}: Default `false`. Whether to use uibuilder's security architecture.
-* `node.tokenAutoExtend`: Whether to use client `ping` messages (every 25-30 sec) to automatically extend the token lifespan.
-* `node.sessionLength` {Integer}: Default `1.8e6`. (1.8e6 milliseconds = 30*60000 = 30min). How long without the client sending a msg will it be until a login is automatically logged out.
-
-#### Credentials
-
-Credentials in Node-RED are node configuration settings that are stored encrypted in a separate json file from your flows. They are _not_ exported when you export a flow.
-
-* `node.jwtSecret` {String}: The secret used to sign/verify the JWT token.
-
 ### Locally configured (not set in Editor)
 
 * `node.customFolder` {String}: Default `<uib.rootFolder>/<node.url>`. 
@@ -270,42 +240,59 @@ Note that the file `typedefs.js` may have a more up-to-date version of this.
 ```javascript
 /** uibNode
  * @typedef {object} uibNode Local copy of the node instance config + other info
- * @property {String} uibNode.id Unique identifier for this instance
- * @property {String} uibNode.type What type of node is this an instance of? (uibuilder)
- * @property {String} uibNode.name Descriptive name, only used by Editor
- * @property {String} uibNode.topic msg.topic overrides incoming msg.topic
- * @property {String} uibNode.url The url path (and folder path) to be used by this instance
- * @property {String} uibNode.oldUrl The PREVIOUS url path (and folder path) after a url rename
- * @property {boolean} uibNode.fwdInMessages Forward input msgs to output #1?
- * @property {boolean} uibNode.allowScripts Allow scripts to be sent to front-end via msg? WARNING: can be a security issue.
- * @property {boolean} uibNode.allowStyles Allow CSS to be sent to the front-end via msg? WARNING: can be a security issue.
- * @property {boolean} uibNode.copyIndex DEPRECATED Copy index.(html|js|css) files from templates if they don't exist? 
- * @property {String}  uibNode.templateFolder Folder name for the source of the chosen template
- * @property {String}  uibNode.extTemplate Degit url reference for an external template (e.g. from GitHub)
- * @property {boolean} uibNode.showfolder Provide a folder index web page?
- * @property {boolean} uibNode.useSecurity Use uibuilder's built-in security features?
- * @property {boolean} uibNode.tokenAutoExtend Extend token life when msg's received from client?
- * @property {Number} uibNode.sessionLength Lifespan of token (in seconds)
- * @property {boolean} uibNode.reload If true, notify all clients to reload on a change to any source file
- * @property {String} uibNode.jwtSecret Seed string for encryption of JWT
- * @property {String} uibNode.customFolder Name of the fs path used to hold custom files & folders for THIS INSTANCE
- * @property {Number} uibNode.ioClientsCount How many Socket clients connected to this instance?
- * @property {Number} uibNode.rcvMsgCount How many msg's received since last reset or redeploy?
- * @property {Object} uibNode.ioChannels The channel names for Socket.IO
- * @property {String} uibNode.ioChannels.control SIO Control channel name 'uiBuilderControl'
- * @property {String} uibNode.ioChannels.client SIO Client channel name 'uiBuilderClient'
- * @property {String} uibNode.ioChannels.server SIO Server channel name 'uiBuilder'
- * @property {String} uibNode.ioNamespace Make sure each node instance uses a separate Socket.IO namespace
- * @property {Function} uibNode.send Send a Node-RED msg to an output port
- * @property {Function=} uibNode.done Dummy done function for pre-Node-RED 1.0 servers
- * @property {Function=} uibNode.on Event handler
- * @property {Function=} uibNode.removeListener Event handling
- * @property {Object=} uibNode.credentials Optional secured credentials
- * @property {Object=} uibNode.z Internal
- * @property {Object=} uibNode.wires Internal. The wires attached to this node instance (uid's)
- * 
- * @property {boolean} uibNode.commonStaticLoaded Whether the common static folder has been added
- * @property {boolean} uibNode.initCopyDone Has the initial template copy been done?
+ * @property {string} id Unique identifier for this instance
+ * @property {string} type What type of node is this an instance of? (uibuilder)
+ *
+ * @property {string} name Descriptive name, only used by Editor
+ * @property {string} topic msg.topic overrides incoming msg.topic
+ * @property {string} url The url path (and folder path) to be used by this instance
+ * @property {string} oldUrl The PREVIOUS url path (and folder path) after a url rename
+ * @property {boolean} fwdInMessages Forward input msgs to output #1?
+ * @property {boolean} allowScripts Allow scripts to be sent to front-end via msg? WARNING: can be a security issue.
+ * @property {boolean} allowStyles Allow CSS to be sent to the front-end via msg? WARNING: can be a security issue.
+ * @property {boolean} copyIndex DEPRECATED Copy index.(html|js|css) files from templates if they don't exist?
+ * @property {string}  templateFolder Folder name for the source of the chosen template
+ * @property {string}  extTemplate Degit url reference for an external template (e.g. from GitHub)
+ * @property {boolean} showfolder Provide a folder index web page?
+ * @property {boolean} reload If true, notify all clients to reload on a change to any source file
+ * @property {string} sourceFolder (src or dist) the instance FE code folder to be served by ExpressJS
+ * @property {string} deployedVersion The version of uibuilder when this node was last deployed
+ * @property {boolean} showMsgUib Whether to include msg._uib (clientId/real IP/page name) in std output msgs
+ *
+ * @property {string} customFolder Name of the fs path used to hold custom files & folders for THIS INSTANCE
+ * @property {number} ioClientsCount How many Socket clients connected to this instance?
+ * @property {number} rcvMsgCount How many msg's received since last reset or redeploy?
+ * @property {object} ioChannels The channel names for Socket.IO
+ * @property {string} ioChannels.control SIO Control channel name 'uiBuilderControl'
+ * @property {string} ioChannels.client SIO Client channel name 'uiBuilderClient'
+ * @property {string} ioChannels.server SIO Server channel name 'uiBuilder'
+ * @property {string} ioNamespace Make sure each node instance uses a separate Socket.IO namespace
+ *
+ * @property {Function} send Send a Node-RED msg to an output port
+ * @property {Function=} done Dummy done Function for pre-Node-RED 1.0 servers
+ * @property {Function=} on Event handler
+ * @property {Function=} removeListener Event handling
+ * @property {Function=} context Function that accesses the nodes context vars or the flow/global vars
+ * @property {Function=} emit Function that emits an event
+ * @property {Function=} receive Function that ???
+ * @property {object=} credentials Optional secured credentials
+ * @property {object=} z Internal
+ * @property {object=} wires Internal. The wires attached to this node instance (uid's)
+ *
+ * @property {boolean} commonStaticLoaded Whether the common static folder has been added
+ * @property {boolean} initCopyDone Has the initial template copy been done?
+ *
+ * @property {Function} warn Output warn level info to node-red console and to editor debug
+ *
+ * @property {object} statusDisplay Settings for the uibuilder node status
+ * @property {string} statusDisplay.text Text to display
+ * @property {string} statusDisplay.fill Fill colour: black, blue, red, yellow, ...
+ * @property {string} statusDisplay.shape dot or ring
+ *
+ * @property {string} title Short descriptive title for the instance
+ * @property {string} descr Longer description for the instance
+ *
+ * @property {Function} sendToFe Ref to sockets.sendToFe
  */
 ```
 
@@ -322,6 +309,7 @@ Note that the file `typedefs.js` may have a more up-to-date version of this.
 
 * `ioNs`: Reference to Socket.IO namespace used for the instance.
 * `nodeInputHandler`: Function that handles incoming messages for a uibuilder instance.
+* `sendToFe`: A reference to sockets.sendToFe which allows a msg to be sent directly to attached clients.
 
 ### Utility Classes
 
diff --git a/nodes/uibuilder.js b/nodes/uibuilder.js
index 82ab4781..8a445623 100644
--- a/nodes/uibuilder.js
+++ b/nodes/uibuilder.js
@@ -32,7 +32,7 @@ const uiblib = require('./libs/uiblib')  // Utility library for uibuilder
 const tilib = require('./libs/tilib')   // General purpose library (by Totally Information)
 const packageMgt = require('./libs/package-mgt')
 const tiEvents = require('@totallyinformation/ti-common-event-handler') // https://github.com/EventEmitter2/EventEmitter2
-const uibFs  = require('./libs/fs')   // File/folder handling library (by Totally Information)
+const fslib  = require('./libs/fs')   // File/folder handling library (by Totally Information)
 // Wrap these require's with try/catch to force better error reports - just in case any of the modules have issues
 try {
     // Template configuration metadata
@@ -70,7 +70,7 @@ const fs = require('fs-extra')  // https://github.com/jprichardson/node-fs-extra
 
 /** @type {uibConfig} */
 const uib = {
-    me: uibFs.readJSONSync(path.join( __dirname, '..', 'package.json' )),
+    me: fslib.readJSONSync(path.join( __dirname, '..', 'package.json' )),
     moduleName: 'uibuilder',
     nodeRoot: '',
     deployments: {},
@@ -324,7 +324,7 @@ function nodeInstance(config) {
     // Does the custom folder exist? If not, create it and copy template to it. Otherwise make sure it is accessible.
     // TODO replace with uibFs.ensureFolder()
     let customFoldersOK = true
-    if ( !fs.existsSync(this.customFolder) ) {
+    if ( !fslib.existsSync(this.customFolder) ) {
         // Does not exist so check whether built-in or external template wanted
         if ( this.templateFolder !== 'external' ) {
 
@@ -366,7 +366,7 @@ function nodeInstance(config) {
     } else {
 
         try {
-            fs.accessSync(this.customFolder, fs.constants.W_OK)
+            fslib.accessSync(this.customFolder, 'w')
         } catch (e) {
             log.error(`🛑[uibuilder:nodeInstance:${this.url}] Local custom folder ERROR`, e.message)
             customFoldersOK = false
@@ -395,6 +395,9 @@ function nodeInstance(config) {
     /** Socket.IO instance configuration. Each deployed instance has it's own namespace */
     sockets.addNS(this) // NB: Namespace is set from url
 
+    // Save a reference to sendToFe to allow this and other nodes referencing this to send direct to clients
+    this.sendToFe = sockets.sendToFe.bind(sockets)
+
     log.trace(`[uibuilder:nodeInstance:${this.url}] URL . . . . .  : ${tilib.urlJoin( uib.nodeRoot, this.url )}`)
     log.trace(`[uibuilder:nodeInstance:${this.url}] Source files . : ${this.customFolder}`)
 
@@ -569,7 +572,7 @@ function runtimeSetup() { // eslint-disable-line sonarjs/cognitive-complexity
 
     // TODO: Move all file handling to separate uibFs lib
     // Configure the UibFs handler class
-    uibFs.setup(uib)
+    fslib.setup(uib)
 
     //#region ----- Set up uibuilder root, root/.config & root/common folders ----- //
 
@@ -587,7 +590,7 @@ function runtimeSetup() { // eslint-disable-line sonarjs/cognitive-complexity
     }
     // Try to access the root folder (read/write) - if we can, create and serve the common resource folder
     try {
-        fs.accessSync( uib.rootFolder, fs.constants.R_OK | fs.constants.W_OK ) // try to access read/write
+        fslib.accessSync( uib.rootFolder, 'rw' ) // try to access read/write
         log.trace(`[uibuilder:runtimeSetup] uibRoot folder is read/write accessible. ${uib.rootFolder}` )
     } catch (e) {
         RED.log.error(`🛑[uibuilder:runtimeSetup] Root folder is not accessible, path: ${uib.rootFolder}. ${e.message}`)
@@ -638,7 +641,6 @@ function runtimeSetup() { // eslint-disable-line sonarjs/cognitive-complexity
     web.setup(uib) // Singleton wrapper for ExpressJS
 
     /** Pass core objects to the Socket.IO handler module */
-    // @ts-ignore
     sockets.setup(uib, web.server) // Singleton wrapper for Socket.IO
 } // --- end of runtimeSetup --- //
 

From 016a7e28e92be05af787a06c7f2c9246ee75d554 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Sun, 3 Dec 2023 15:16:23 +0000
Subject: [PATCH 22/78] Add sendToFe function uibNode

---
 typedefs.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/typedefs.js b/typedefs.js
index 83d71598..a0911793 100644
--- a/typedefs.js
+++ b/typedefs.js
@@ -281,6 +281,8 @@
  *
  * @property {string} title Short descriptive title for the instance
  * @property {string} descr Longer description for the instance
+ *
+ * @property {Function} sendToFe Ref to sockets.sendToFe
  */
 
 /** uibConfig - THe module-level `uib` configuration variable

From dd8b8c1902fd6e6bd959a797f8a9ea6245b77abf Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Sun, 3 Dec 2023 15:18:41 +0000
Subject: [PATCH 23/78] Remove sendToFe from fslib to use uibuilder node
 instance ref. Rename uibFs to fslib

---
 nodes/uib-save/customNode.js | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/nodes/uib-save/customNode.js b/nodes/uib-save/customNode.js
index 9f82306f..a237ecf3 100644
--- a/nodes/uib-save/customNode.js
+++ b/nodes/uib-save/customNode.js
@@ -27,7 +27,7 @@
 
 //#region ----- Module level variables ---- //
 
-const uibFs  = require('../libs/fs')   // File/folder handling library (by Totally Information)
+const fslib  = require('../libs/fs')   // File/folder handling library (by Totally Information)
 // const uiblib = require('../libs/uiblib')  // Utility library for uibuilder
 const { setNodeStatus } = require('../libs/uiblib')  // Utility library for uibuilder
 
@@ -70,11 +70,12 @@ async function inputMsgHandler(msg, send, done) { // eslint-disable-line no-unus
         let folder = this.folder
         let fname = this.fname
 
+        const srcNode = RED.nodes.getNode(this.uibId)
+
         // If "Use pageName"
         if (this.usePageName === true) {
             if ( (msg._uib && msg._uib.pageName) || (msg._ui && msg._ui.pageName) ) {
                 fname = msg._uib ? msg._uib.pageName : msg._ui.pageName
-                const srcNode = RED.nodes.getNode(this.uibId)
                 folder = srcNode.sourceFolder
             } else {
                 this.warn('Use pageName requested but neither msg._uib nor msg._ui exists')
@@ -87,7 +88,18 @@ async function inputMsgHandler(msg, send, done) { // eslint-disable-line no-unus
 
         // Call uibuilder shared library to save file (optional sub-folder creation and client reload)
         try {
-            await uibFs.writeInstanceFile(this.url, folder, fname, msg.payload, this.createFolder, this.reload)
+            await fslib.writeInstanceFile(this.url, folder, fname, msg.payload, this.createFolder, this.reload)
+            if (this.reload === true ) {
+                // Reload connected clients if required by sending them a reload msg
+                srcNode.sendToFe(
+                    {
+                        _ui: { 'method': 'reload' },
+                        topic: 'uib-save reload'
+                    },
+                    this.url,
+                    'uiBuilder'
+                )
+            }
             this.counters.success++
             statusColor = 'green'
         } catch (err) {

From 30e191dd2793239a3aeedebfb9195a56f0fa974c Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Sun, 3 Dec 2023 15:20:55 +0000
Subject: [PATCH 24/78] Remove ref to sockets (circular). Add fast-glob ref.
 Typos & tidy. Add fns: accessSync, existsSync, fgSync, mkdirSync

---
 nodes/libs/fs.js | 96 +++++++++++++++++++++++++++++++++++-------------
 1 file changed, 70 insertions(+), 26 deletions(-)

diff --git a/nodes/libs/fs.js b/nodes/libs/fs.js
index 24d444c9..7ac3c27f 100644
--- a/nodes/libs/fs.js
+++ b/nodes/libs/fs.js
@@ -32,10 +32,13 @@
  */
 
 const path = require('path')
-// const fs = require('fs-extra')
+// Async
 const fs = require('fs/promises')
-const { readFileSync } = require('fs')
-const sockets = require('./socket') // Socket.io handler library for uibuilder
+// Sync
+const { existsSync, accessSync, constants: fsConstants, mkdirSync, readFileSync } = require('fs')
+// TODO Remove in future?
+const fg = require('fast-glob')
+// WARNING: Take care not to end up with circular requires. e.g. libs/socket.js cannot be required here
 
 // ! TODO: Move other file-handling functions into this class
 // !       In readiness for move to mono-repo (need node.js v16+ as a base)
@@ -88,7 +91,7 @@ class UibFs {
 
     /** returns true if the filename contains / or \ else false
      * @param {string} fname filename to test
-     * @returns {boolean}
+     * @returns {boolean} True if fname contains / or \
      */
     hasFolder(fname) {
         return /[/|\\]/.test(fname)
@@ -100,7 +103,7 @@ class UibFs {
      */
     throwOnFolderEscape(fname, note) {
         if (fname.includes('..')) {
-            throw new Error(`Path includes '..'. Folder traversal not permitted. '${folder}' [uibuilder:UibFs:throwOnFolderEscape] ${note}`)
+            throw new Error(`Path includes '..'. Folder traversal not permitted. '${fname}' [uibuilder:UibFs:throwOnFolderEscape] ${note}`)
         }
     }
 
@@ -171,7 +174,7 @@ class UibFs {
 
     async getUibInstanceRootFolders() {
         // const chkInstances = Object.values(uib.instances).includes(params.url)
-        // const chkFolders = fs.existsSync(path.join(uib.rootFolder, params.url))
+        // const chkFolders = existsSync(path.join(uib.rootFolder, params.url))
     }
 
     // TODO chk params
@@ -237,18 +240,6 @@ class UibFs {
         }
 
         log.trace(`📗[uibuilder:UibFs:writeInstanceFile] File write SUCCESS. url=${url}, file=${folder}/${fname}`)
-
-        // Reload connected clients if required by sending them a reload msg
-        if ( reload === true ) {
-            sockets.sendToFe(
-                {
-                    _ui: { 'method': 'reload' },
-                    topic: 'uib-save reload'
-                },
-                url,
-                'uiBuilder'
-            )
-        }
     } // -- End of writeFile -- //
 
     /** Get a text file from uibuilder's master template folders
@@ -264,21 +255,74 @@ class UibFs {
 
     //#region ---- Synchronous methods ----
 
-    ensureFolder({ folder, copyFrom,  }) {
-        // const cpyOpts = { 'preserveTimestamps': true }
-        // Make sure folder exists, create if not
-        // Make sure that the folder can be read/write
-        // If copyFrom not undefined/null/'', copy to folder
+    /** Synchronously try access and error if fail.
+     * @param {string} path Path to try to access
+     * @param {'r'|'w'|'rw'|number} mode Modes required to work: r, w or rw
+     */
+    accessSync(path, mode) {
+        switch (mode) {
+            case 'r': {
+                mode = fsConstants.R_OK
+                break
+            }
+
+            case 'w': {
+                mode = fsConstants.W_OK
+                break
+            }
+
+            case 'rw': {
+                mode = fsConstants.R_OK || fsConstants.W_OK
+                break
+            }
+
+            default: {
+                mode = fsConstants.R_OK || fsConstants.W_OK
+                break
+            }
+        }
+        accessSync(path, mode)
+    }
+
+    // ensureFolder({ folder, copyFrom,  }) {
+    // const cpyOpts = { 'preserveTimestamps': true }
+    // Make sure folder exists, create if not
+    // Make sure that the folder can be read/write
+    // If copyFrom not undefined/null/'', copy to folder
+    // }
+
+    /** Does the path exist?
+     * @param {string} path FS Path to check
+     * @returns {boolean} True if path exists
+     */
+    existsSync(path) {
+        return existsSync(path)
+    }
+
+    /** Return a list of files matching the glob specification
+     * @param {string} glob The pattern to match - see fast-glob for details
+     * @returns {string[]} A list of files
+     */
+    fgSync(glob) {
+        if (!glob) return []
+        return fg.sync(glob)
+    }
+
+    /** Synchronously create a folder
+     * @param {string} path The folder to create - creates intermediates only if recursive option is set
+     * @param {{recursive:boolean}|{recursive:boolean,mode:string|number}|number} [options] Options
+     * @returns {string|undefined} Returns undefined unless recursive is set in which case the 1st created path is returned
+     */
+    mkdirSync(path, options) {
+        return mkdirSync(path, options)
     }
 
     //#endregion ---- ---- ----
 
     /* TODO
         moveSync
-        existsSync
         copySync
         copy
-        accessSync (constants.W_OK, constants.R_OK)
         ensureDirSync
     */
 
@@ -290,7 +334,7 @@ class UibFs {
     /** Read a JSON file and return as a JavaScript object - can use instead of fs-extra
      * @throws If reading or parsing fails
      * @param {string} file JSON file path/name to read
-     * @returns {Object} The parsed JSON file as an object
+     * @returns {object} The parsed JSON file as an object
      */
     readJSONSync(file) {
         try {

From fe08659ae4e7def92650f77d262d58c56414251d Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Sun, 3 Dec 2023 15:22:37 +0000
Subject: [PATCH 25/78] Remove fs-extra, add existsSync from fslib. Tidy.

---
 nodes/libs/socket.js | 41 ++++++++++++++++++-----------------------
 1 file changed, 18 insertions(+), 23 deletions(-)

diff --git a/nodes/libs/socket.js b/nodes/libs/socket.js
index 185fa34d..cb48a007 100644
--- a/nodes/libs/socket.js
+++ b/nodes/libs/socket.js
@@ -24,16 +24,16 @@
  * @typedef {import('../../typedefs.js').MsgAuth} MsgAuth
  * @typedef {import('../../typedefs.js').uibNode} uibNode
  * @typedef {import('../../typedefs.js').uibConfig} uibConfig
- * @typedef {import('Express')} Express
+ * @typedef {import('express')} Express
  */
 
-const path     = require('path')
-const fs = require('fs-extra')
+const { join }     = require('path')
+const { existsSync } = require('./fs')
 const socketio = require('socket.io')
-const tilib    = require('./tilib')    // General purpose library (by Totally Information)
-const uiblib   = require('./uiblib')   // Utility library for uibuilder
+const { urlJoin }    = require('./tilib')    // General purpose library (by Totally Information)
+const { setNodeStatus }   = require('./uiblib')   // Utility library for uibuilder
 // const security = require('./sec-lib') // uibuilder security module
-const tiEventManager = require('@totallyinformation/ti-common-event-handler')
+const { emit } = require('@totallyinformation/ti-common-event-handler')
 
 /** Get client real ip address - NB: Optional chaining (?.) is node.js v14 not v12
  * @param {socketio.Socket} socket Socket.IO socket object
@@ -167,8 +167,8 @@ class UibSockets {
         // If available, set up optional outbound msg middleware
         this.outboundMsgMiddleware = function outboundMsgMiddleware( msg, url, channel ) { return null }
         // Try to load the sioMsgOut middleware function - sioMsgOut applies to all outgoing msgs
-        const mwfile = path.join(uib.configFolder, uib.sioMsgOutMwName)
-        if ( fs.existsSync(mwfile) ) { // not interested if the file doesn't exist
+        const mwfile = join(uib.configFolder, uib.sioMsgOutMwName)
+        if ( existsSync(mwfile) ) { // not interested if the file doesn't exist
             try {
                 const sioMsgOut = require( mwfile )
                 if ( typeof sioMsgOut === 'function' ) { // if exported, has to be a function
@@ -204,7 +204,7 @@ class UibSockets {
         if (RED === undefined) throw new Error('RED is undefined')
         if (log === undefined) throw new Error('log is undefined')
 
-        const uibSocketPath = this.uib_socketPath = tilib.urlJoin(uib.nodeRoot, uib.moduleName, 'vendor', 'socket.io')
+        const uibSocketPath = this.uib_socketPath = urlJoin(uib.nodeRoot, uib.moduleName, 'vendor', 'socket.io')
 
         log.trace(`[uibuilder:socket:socketIoSetup] Socket.IO initialisation - Socket Path=${uibSocketPath}, CORS Origin=*` )
         // Socket.Io server options, see https://socket.io/docs/v4/server-options/
@@ -399,7 +399,7 @@ class UibSockets {
     sendIt(msg, node) {
         if ( msg._uib && msg._uib.originator && (typeof msg._uib.originator === 'string') ) {
             // const eventName = `node-red-contrib-uibuilder/return/${msg._uib.originator}`
-            tiEventManager.emit(`node-red-contrib-uibuilder/return/${msg._uib.originator}`, msg)
+            emit(`node-red-contrib-uibuilder/return/${msg._uib.originator}`, msg)
         } else {
             node.send(msg)
         }
@@ -479,8 +479,8 @@ class UibSockets {
          * Applies ONCE on a new client connection.
          * Had to move to addNS since MW no longer globally loadable since sio v3
          */
-        const sioMwPath = path.join(uib.configFolder, 'sioMiddleware.js')
-        if ( fs.existsSync(sioMwPath) ) { // not interested if the file doesn't exist
+        const sioMwPath = join(uib.configFolder, 'sioMiddleware.js')
+        if ( existsSync(sioMwPath) ) { // not interested if the file doesn't exist
             try {
                 const sioMiddleware = require(sioMwPath)
                 if ( typeof sioMiddleware === 'function' ) {
@@ -502,7 +502,6 @@ class UibSockets {
 
             // NOTE: as of sio v4, disconnect seems to be fired AFTER a connect when a client reconnects
             socket.on('disconnect', (reason, description) => {
-
                 // ioNs.clientLog[socket.handshake.auth.clientId].connected = false
 
                 node.ioClientsCount = ioNs.sockets.size
@@ -510,7 +509,7 @@ class UibSockets {
                     `[uibuilder:socket:${url}:disconnect] Client disconnected, clientCount: ${ioNs.sockets.size}, Reason: ${reason}, ID: ${socket.id}, IP Addr: ${getClientRealIpAddress(socket)}, Client ID: ${socket.handshake.auth.clientId}. For node ${node.id}`
                 )
                 node.statusDisplay.text = 'connected ' + ioNs.sockets.size
-                uiblib.setNodeStatus( node )
+                setNodeStatus( node )
 
                 // Let the control output port know a client has disconnected
                 const ctrlMsg = {
@@ -530,8 +529,7 @@ class UibSockets {
                 that.sendCtrlMsg(ctrlMsg, node)
 
                 // Let other nodes know a client is disconnecting (via custom event manager)
-                tiEventManager.emit(`node-red-contrib-uibuilder/${this.url}/clientDisconnect`, ctrlMsg)
-
+                emit(`node-red-contrib-uibuilder/${node.url}/clientDisconnect`, ctrlMsg)
             }) // --- End of on-connection::on-disconnect() --- //
 
             // Listen for msgs from clients on standard channel
@@ -561,12 +559,10 @@ class UibSockets {
                 if ( !msg.topic ) msg.topic = node.topic
 
                 that.sendCtrlMsg(msg, node)
-
             }) // --- End of on-connection::on-incoming-control-msg() --- //
 
             // Listen for socket.io errors - output a control msg
             socket.on('error', function(err) {
-
                 log.error(`[uibuilder:socket:addNs:${url}] ERROR received, ID: ${socket.id}, Reason: ${err.message}`)
 
                 // Let the control output port (port #2) know there has been an error
@@ -580,7 +576,6 @@ class UibSockets {
                 }
 
                 that.sendCtrlMsg(ctrlMsg, node)
-
             }) // --- End of on-connection::on-error() --- //
 
             //#endregion ----- Event Handlers ----- //
@@ -597,8 +592,8 @@ class UibSockets {
             if (uib.configFolder === null) throw new Error('uib.configFolder is undefined')
 
             // Try to load the sioUse middleware function - sioUse applies to all incoming msgs
-            const mwfile = path.join(uib.configFolder, uib.sioUseMwName)
-            if ( fs.existsSync(mwfile) ) { // not interested if the file doesn't exist
+            const mwfile = join(uib.configFolder, uib.sioUseMwName)
+            if ( existsSync(mwfile) ) { // not interested if the file doesn't exist
                 try {
                     const sioUseMw = require( mwfile )
                     if ( typeof sioUseMw === 'function' ) { // if exported, has to be a function
@@ -613,7 +608,7 @@ class UibSockets {
             }
 
             node.statusDisplay.text = `connected ${ioNs.sockets.size}`
-            uiblib.setNodeStatus( node )
+            setNodeStatus( node )
 
             // Initial connect message to client
             const msgClient = {
@@ -650,7 +645,7 @@ class UibSockets {
             that.sendCtrlMsg(ctrlMsg, node)
 
             // Let other nodes know a client is connecting (via custom event manager)
-            tiEventManager.emit(`node-red-contrib-uibuilder/${this.url}/clientConnect`, ctrlMsg)
+            emit(`node-red-contrib-uibuilder/${node.url}/clientConnect`, ctrlMsg)
 
             //#endregion ---- run when client connects ---- //
 

From 0260a5d42013f575529238eb2df7cc291c1dc1ac Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Sun, 3 Dec 2023 15:25:56 +0000
Subject: [PATCH 26/78] Tidy & typos

---
 nodes/libs/web.js | 96 +++++++++++++++++++++++------------------------
 1 file changed, 46 insertions(+), 50 deletions(-)

diff --git a/nodes/libs/web.js b/nodes/libs/web.js
index 1181a21e..b48ae81b 100644
--- a/nodes/libs/web.js
+++ b/nodes/libs/web.js
@@ -23,23 +23,21 @@
  * @typedef {import('../../typedefs.js').uibConfig} uibConfig
  * @typedef {import('../../typedefs.js').runtimeRED} runtimeRED
  * @typedef {import('../../typedefs.js').uibPackageJsonPackage} uibPackageJsonPackage
- * @typedef {import('Express')} Express
- * @typedef {import('Express').Request} ExpressRequest
- * @typedef {import('Express').NextFunction} ExpressNextFunction
- * @typedef {import('Express').Router} ExpressRouter
+ * @typedef {import('express')} Express
+ * @typedef {import('express').Request} ExpressRequest
+ * @typedef {import('express').NextFunction} ExpressNextFunction
+ * @typedef {import('express').Router} ExpressRouter
  */
 
-const path = require('path')
-const fslib = require('./fs.js')
+const { join, dirname, parse } = require('path')
 const serveIndex = require('serve-index')
 const express = require('express')
-const tilib = require('./tilib')
-const uiblib = require('./uiblib')
+const { getNs } = require('./socket.js')
+const { getClientId } = require('./uiblib')
+const { accessSync, existsSync, mkdirSync, fgSync } = require('./fs.js')
+const { mylog, urlJoin } = require('./tilib') // dumpReq, mylog
+// WARNING: Don't try to deconstruct this, if you do the initial uibPackageJson access fails for some reason
 const packageMgt = require('./package-mgt.js')
-const socket = require('./socket.js')
-const { mylog } = require('./tilib') // dumpReq, mylog
-// const { isBuffer } = require('util')
-// const { type } = require('os')
 
 // Filename for default web page
 const defaultPageName = 'index.html'
@@ -142,7 +140,6 @@ class UibWeb {
         this._webSetup()
 
         log.trace('[uibuilder:web:setup] Web setup end')
-
     } // --- End of setup() --- //
 
     //#region ==== Setup - these are called AFTER #isConfigured=true ==== //
@@ -164,7 +161,7 @@ class UibWeb {
         /** Serve up the package docs folder on /<httpAdminRoot>/uibuilder/techdocs (uses docsify) - also make available on /uibuilder/docs
          * @see https://github.com/TotallyInformation/node-red-contrib-uibuilder/issues/108
          */
-        const techDocsPath = path.join(__dirname, '..', '..', 'docs')
+        const techDocsPath = join(__dirname, '..', '..', 'docs')
         this.adminRouter.use('/docs', express.static( techDocsPath, this.uib.staticOpts ) )
         this.routers.admin.push( { name: 'Documentation', path: `${this.RED.settings.httpAdminRoot}uibuilder/docs`, desc: 'Documentation website powered by Docsify', type: 'Static', folder: techDocsPath } )
         this.adminRouter.use('/techdocs', express.static( techDocsPath, this.uib.staticOpts ) )
@@ -279,8 +276,8 @@ class UibWeb {
         if (uib.rootFolder === null) throw new Error('uib.rootFolder is null')
         // Set views folder to uibRoot (but only if not overridden in settings)
         if ( !uib.customServer.serverOptions.views ) {
-            this.app.set('views', path.join(uib.rootFolder, 'views') )
-            log.trace(`[uibuilder:web:_webSetup] ExpressJS Views folder set to '${path.join(uib.rootFolder, 'views')}'`)
+            this.app.set('views', join(uib.rootFolder, 'views') )
+            log.trace(`[uibuilder:web:_webSetup] ExpressJS Views folder set to '${join(uib.rootFolder, 'views')}'`)
         } else {
             log.trace(`[uibuilder:web:_webSetup] ExpressJS Views folder is '${uib.customServer.serverOptions.views}'`)
         }
@@ -311,19 +308,18 @@ class UibWeb {
         // TODO: This needs some tweaking to allow the cache settings to change - currently you'd have to restart node-red.
         if (uib.commonFolder === null) throw new Error('uib.commonFolder is null')
         // Serve up the master common folder (e.g. <httpNodeRoute>/uibuilder/common/)
-        this.uibRouter.use( tilib.urlJoin(uib.commonFolderName), express.static( uib.commonFolder, uib.staticOpts ) )
+        this.uibRouter.use( urlJoin(uib.commonFolderName), express.static( uib.commonFolder, uib.staticOpts ) )
         this.routers.user.push( { name: 'Central Common Resources', path: `${this.uib.httpRoot}/uibuilder/${uib.commonFolderName}/*`, desc: 'Common resource library', type: 'Static', folder: uib.commonFolder } )
 
         // Assign the uibRouter to the ../uibuilder url path
-        this.app.use( tilib.urlJoin(uib.moduleName), this.uibRouter )
-
+        this.app.use( urlJoin(uib.moduleName), this.uibRouter )
     } // --- End of webSetup() --- //
 
     // TODO Add instance title & description to uibuilder node.
     /** Return a dynamic index page of all uibuilder user-accessible endpoints
-     * @param {express.Request} req Express request object
-     * @param {express.Response} res Express response object
-     * @param {Function} next Function to pass to next handler
+     * param {express.Request} req Express request object
+     * param {express.Response} res Express response object
+     * param {Function} next Function to pass to next handler
      */
     _serveUserUibIndex() {
         this.uibRouter.get('/apps', (req, res, next) => {
@@ -349,7 +345,7 @@ class UibWeb {
             if ( Object.keys(this.uib.instances).length === 0 ) {
                 page += '<p>Instance list not yet ready, please try again</p>'
             } else {
-                for (let [url, data] of Object.entries(this.uib.apps)) {
+                for (let [url, data] of Object.entries(this.uib.apps)) { // eslint-disable-line prefer-const
                     const title = data.title.length === 0 ? '' : `: ${data.title}`
                     const descr = data.descr.length === 0 ? '' : `<div>${data.descr}</div>`
                     page += `
@@ -394,7 +390,7 @@ class UibWeb {
         const log = this.log
 
         try {
-            fslib.accessSync( path.join(uib.masterStaticFeFolder, defaultPageName), 'r' )
+            accessSync( join(uib.masterStaticFeFolder, defaultPageName), 'r' )
             log.trace(`[uibuilder:web:setMasterStaticFolder] Using master production build folder. '${uib.masterStaticFeFolder}'`)
             this.masterStatic = uib.masterStaticFeFolder
         } catch (e) {
@@ -412,12 +408,12 @@ class UibWeb {
         }
 
         // Add socket.io client - look both in uibuilder master folder, then uibRoot, then userDir
-        let sioPath = packageMgt.getPackagePath2( 'socket.io-client', [path.join(__dirname, '..', '..'), this.uib.rootFolder, this.RED.settings.userDir] )
+        let sioPath = packageMgt.getPackagePath2( 'socket.io-client', [join(__dirname, '..', '..'), this.uib.rootFolder, this.RED.settings.userDir] )
 
         // If it can't be found the usual way - probably because Docker being used & socket.io not in usual place
         if ( sioPath === null ) {
             try {
-                sioPath = path.join(path.dirname(require.resolve('socket.io-client')), '..')
+                sioPath = join(dirname(require.resolve('socket.io-client')), '..')
             } catch (e) {
                 this.log.error(`[uibuilder:web:serveVendorSocketIo] Cannot find socket.io-client. ${e.message}`)
             }
@@ -451,10 +447,10 @@ class UibWeb {
 
         log.trace('[uibuilder:web:serveVendorPackages] Serve Vendor Packages started')
 
-        // Update the <uibRoot>/package.json file & packageMgt.uibPackageJson in case a package was manually installed then node-red restarted
+        // Update the <uibRoot>/package.json file & uibPackageJson in case a package was manually installed then node-red restarted
         // Get the installed packages from the `<uibRoot>/package.json` file. If it doesn't exist, this will create it.
         const pj = packageMgt.uibPackageJson
-        if (pj === null) throw new Error('web.js:serveVendorPackages: pj is null')
+        if (!pj) throw new Error('web.js:serveVendorPackages: pj is undefined or null')
         if ( pj.dependencies === undefined ) throw new Error('web.js:serveVendorPackages: pj.dependencies is undefined')
 
         /** Create Express Router to handle routes on `<httpNodeRoot>/uibuilder/vendor/`
@@ -605,17 +601,17 @@ class UibWeb {
          * ? TODO change instance static to optional render
          */
         this.instanceRouters[node.url].use( (req, res, next) => {
-            const pathRoot = path.join(rootFolder, node.url, 'views')
-            const requestedView = path.parse(req.path)
-            let filePath = path.join(pathRoot, requestedView.base)
+            const pathRoot = join(rootFolder, node.url, 'views')
+            const requestedView = parse(req.path)
+            let filePath = join(pathRoot, requestedView.base)
 
             if (this.app.get('view engine')) {
-                filePath = path.join(pathRoot, `${requestedView.name}.ejs`)
-                if (fslib.existsSync(filePath)) {
+                filePath = join(pathRoot, `${requestedView.name}.ejs`)
+                if (existsSync(filePath)) {
                     // console.log('>> render >>', requestedView.name, filePath) //! TODO - remove
                     try {
-                        // res.render( path.join(uib.rootFolder, node.url, 'views', requestedView.name), {foo:'Crunchy', footon: 'bar stool', _env: node.context().global.get('_env')} )
-                        res.render( path.join(rootFolder, node.url, 'views', requestedView.name), { _env: node.context().global.get('_env') } )
+                        // res.render( join(uib.rootFolder, node.url, 'views', requestedView.name), {foo:'Crunchy', footon: 'bar stool', _env: node.context().global.get('_env')} )
+                        res.render( join(rootFolder, node.url, 'views', requestedView.name), { _env: node.context().global.get('_env') } )
                     } catch (e) {
                         res.sendFile( requestedView.base, { root: pathRoot } )
                     }
@@ -647,12 +643,12 @@ class UibWeb {
         if (uib.commonFolder === null) throw new Error('uib.commonFolder is null')
 
         // (5) Serve up the uibuilder static common folder on `<httpNodeRoot>/<url>/<commonFolderName>` (it is already available on `<httpNodeRoot>/uibuilder/<commonFolderName>/`, see _webSetup()
-        this.instanceRouters[node.url].use( tilib.urlJoin(uib.commonFolderName), express.static( uib.commonFolder, uib.staticOpts ) )
+        this.instanceRouters[node.url].use( urlJoin(uib.commonFolderName), express.static( uib.commonFolder, uib.staticOpts ) )
         // Track routes
         this.routers.instances[node.url].push( { name: 'Common Code', path: `${this.uib.httpRoot}/${node.url}/common/`, desc: 'Shared FE code, same for all instances', type: 'Static', folder: uib.commonFolder } )
 
         // Apply this instances router to the url path on `<httpNodeRoot>/<url>/`
-        this.app.use( tilib.urlJoin(node.url), this.instanceRouters[node.url])
+        this.app.use( urlJoin(node.url), this.instanceRouters[node.url])
 
         // this.dumpUserRoutes(true)
         // this.dumpInstanceRoutes(true, node.url)
@@ -674,7 +670,7 @@ class UibWeb {
         if (uib.configFolder === null) throw new Error('uib.configFolder is null')
 
         /** Check for <uibRoot>/.config/uibMiddleware.js, use it if present. Copy template if not exists @since v2.0.0-dev4 */
-        const uibMwPath = path.join(uib.configFolder, 'uibMiddleware.js')
+        const uibMwPath = join(uib.configFolder, 'uibMiddleware.js')
         try {
             const uibMiddleware = require(uibMwPath)
             if ( typeof uibMiddleware === 'function' ) {
@@ -712,7 +708,7 @@ class UibWeb {
          */
         function masterMiddleware (req, res, next) {
             // Check for client id from client - if it exists, reuse it otherwise create one
-            const clientId = uiblib.getClientId(req)
+            const clientId = getClientId(req)
 
             // TODO: X-XSS-Protection only needed for html (and js?), not for css, etc
             res
@@ -786,7 +782,7 @@ class UibWeb {
         if ( node.sourceFolder === undefined ) {
             try {
                 // Check if local dist folder contains an index.html & if NR can read it - fall through to catch if not
-                fslib.accessSync( path.join(node.customFolder, 'dist', defaultPageName), 'r' )
+                accessSync( join(node.customFolder, 'dist', defaultPageName), 'r' )
                 // If the ./dist/index.html exists use the dist folder...
                 customStatic = 'dist'
                 log.trace(`[uibuilder:web:setupInstanceStatic:${node.url}] Using local dist folder`)
@@ -799,12 +795,12 @@ class UibWeb {
             }
         }
 
-        const customFull = path.join(node.customFolder, customStatic)
+        const customFull = join(node.customFolder, customStatic)
 
         // Does the customStatic folder exist? If not, then create it
         try {
             // With recursive, will create missing parents and does not error if parents already exist
-            fslib.mkdirSync( customFull, { recursive: true } )
+            mkdirSync( customFull, { recursive: true } )
             // fslib.ensureDirSync( customFull )
             log.trace(`[uibuilder:web:setupInstanceStatic:${node.url}] Using local ${customStatic} folder`)
         } catch (e) {
@@ -812,7 +808,7 @@ class UibWeb {
         }
 
         // Does it contain an index.html file? If not, then issue a warn
-        if ( !fslib.existsSync( path.join(customFull, defaultPageName) ) ) {
+        if ( !existsSync( join(customFull, defaultPageName) ) ) {
             node.warn(`[uibuilder:web:setupInstanceStatic:${node.url}] Cannot show default page, index.html does not exist in ${customFull}.`)
         }
 
@@ -835,7 +831,7 @@ class UibWeb {
         const log = this.log
 
         // Allow all .js files in api folder to be loaded, always returns an array - NB: Fast Glob requires fwd slashes even on Windows
-        const apiFiles = fslib.fgSync(`${uib.rootFolder}/${node.url}/api/*.js`)
+        const apiFiles = fgSync(`${uib.rootFolder}/${node.url}/api/*.js`)
         // console.log('>> apiFiles >>', `${uib.rootFolder}/${node.url}/api/*.js`, apiFiles)
         apiFiles.forEach( instanceApiPath => {
             // console.log('>> api file >>', instanceApiPath)
@@ -932,7 +928,7 @@ class UibWeb {
         // functions: ['_closeCallbacks', '_inputCallback', '_inputCallbacks', 'send', ]
         // Keep secret: ['jwtSecret', ]
 
-        const ns = socket.getNs(node.url)
+        const ns = getNs(node.url)
 
         page += `
             <!doctype html><html lang="en"><head>
@@ -967,7 +963,7 @@ class UibWeb {
                         </tr>
                         <tr>
                             <th>URL for the front-end resources</th>
-                            <td><a href="${urlPrefix}${tilib.urlJoin(uib.nodeRoot, node.url).replace('/', '')}" target="_blank">.${tilib.urlJoin(uib.nodeRoot, node.url)}/</a><br>Index.html page will be shown if you click.</td>
+                            <td><a href="${urlPrefix}${urlJoin(uib.nodeRoot, node.url).replace('/', '')}" target="_blank">.${urlJoin(uib.nodeRoot, node.url)}/</a><br>Index.html page will be shown if you click.</td>
                         </tr>
                         <tr>
                             <th>Node-RED userDir folder</th>
@@ -1073,7 +1069,7 @@ class UibWeb {
 
     /** Creates a route for logging to NR from the front-end via HTTP Beacons
      * In FE code, use as: navigator.sendBeacon('./_clientLog', `pageshow. From Cache?: ${event.persisted}`)
-     * Only text can be sent. This fn attempts to split the text on "::". If it succedes, the 1st entry
+     * Only text can be sent. This fn attempts to split the text on "::". If it succeeds, the 1st entry
      * is assumed to be the log level. If no level provided, assumes "debug" level so it won't show in NR logs by default.
      * @param {uibNode} node configuration data for this instance
      */
@@ -1142,7 +1138,7 @@ class UibWeb {
         // Is this capability turned on in settings.js?
 
         // Add routers from each <uibRoot>/<node.url>/routes/*.js file (Empty list if fldr doesn't exist or no files)
-        const routeFiles = fslib.fgSync(`${uib.rootFolder}/${node.url}/routes/*.js`)
+        const routeFiles = fgSync(`${uib.rootFolder}/${node.url}/routes/*.js`)
         routeFiles.forEach( routeFilePath => {
             let instanceRouteFile = {}
             let routeKeys = []
@@ -1360,14 +1356,14 @@ class UibWeb {
             ip: r.ip, // remote ip of request, proxy dependent
             ips: r.ips, // list of forwarded ips if proxy set
             method: r.method,
-            orginalUrl: r.originalUrl,
+            originalUrl: r.originalUrl,
             params: r.params,
             path: r.path,
             protocol: r.protocol,
             query: r.query,
             route: r.route,
             secure: r.secure,
-            stale: r.stale, // oposite of fresh
+            stale: r.stale, // opposite of fresh
             subdomains: r.subdomains,
             url: r.url, // from node.js url
             xhr: r.xhr,

From 40cde61f5978686c26e4020c151d3964ebde50e8 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Sun, 3 Dec 2023 15:31:44 +0000
Subject: [PATCH 27/78] Add ref to fslib, move some fns from fs-extra to fslib.
 Typos & tidy

---
 nodes/libs/package-mgt.js | 45 +++++++++++++++++++--------------------
 1 file changed, 22 insertions(+), 23 deletions(-)

diff --git a/nodes/libs/package-mgt.js b/nodes/libs/package-mgt.js
index fd9e6ab2..52289d72 100644
--- a/nodes/libs/package-mgt.js
+++ b/nodes/libs/package-mgt.js
@@ -25,10 +25,9 @@
  * @typedef {import('../../typedefs.js').uibPackageJson} uibPackageJson
  */
 
-const path = require('path')
-// const util = require('util')
-const fs = require('fs-extra')
-// const tilib = require('./tilib')
+const { join } = require('path')
+const { copy, readJsonSync, writeJson, writeJsonSync } = require('fs-extra')
+const { existsSync } = require('./fs.js')
 const execa = require('execa')
 
 class UibPackages {
@@ -150,7 +149,7 @@ class UibPackages {
             const pkg = pj.uibuilder.packages[pkgName]
             if ( this.uib.rootFolder === null ) throw this.#rootFldrNullError
             // The actual location of the package folder
-            pkg.installFolder = path.join(this.uib.rootFolder, 'node_modules', pkgName)
+            pkg.installFolder = join(this.uib.rootFolder, 'node_modules', pkgName)
             // The base url used by uib - note this is changed if this is a scoped package
             pkg.packageUrl = '/' + pkgName
             // this.log.debug(`[uibuilder:package-mgt:pkgsQuickUpd] Updating '${pkgName}'. Fldr: '${pkg.installFolder}', URL: '${pkg.packageUrl}'.`)
@@ -172,10 +171,10 @@ class UibPackages {
 
         let file = null
         try {
-            //! TODO: Replace fs-extra
+            // ! TODO: Replace fs-extra
             // const data = fs.readFileSync('./example.json')
             // const obj = JSON.parse(data)
-            file = fs.readJsonSync( path.join(folder, this.packageJson), 'utf8' )
+            file = readJsonSync( join(folder, this.packageJson), 'utf8' )
             this.log.trace(`[uibuilder:package-mgt:readPackageJson] package.json file read successfully from ${folder}`)
         } catch (err) {
             this.log.error(`[uibuilder:package-mgt:readPackageJson] Failed to read package.json file from  ${folder}`, this.packageJson, err)
@@ -191,17 +190,17 @@ class UibPackages {
     async writePackageJson(folder, json) {
         // Does not need setup to have finished running
 
-        const fileName = path.join( folder, this.packageJson )
+        const fileName = join( folder, this.packageJson )
 
         try { // Make a backup copy
-            await fs.copy(fileName, `${fileName}.bak`)
+            await copy(fileName, `${fileName}.bak`)
             this.log.trace(`[uibuilder:package-mgt:writePackageJson] package.json file successfully backed up in ${folder}`)
         } catch (err) {
             this.log.error(`[uibuilder:package-mgt:writePackageJson] Failed to copy package.json to backup.  ${folder}`, this.packageJson, err)
         }
 
         try {
-            await fs.writeJson(fileName, json, { spaces: 2 })
+            await writeJson(fileName, json, { spaces: 2 })
             this.log.trace(`[uibuilder:package-mgt:writePackageJson] package.json file written successfully in ${folder}`)
         } catch (err) {
             this.log.error(`[uibuilder:package-mgt:writePackageJson] Failed to write package.json.  ${folder}`, this.packageJson, err)
@@ -221,7 +220,7 @@ class UibPackages {
         if ( this.uib.rootFolder === null ) throw this.#rootFldrNullError
         const uibRoot = this.uib.rootFolder
 
-        const fileName = path.join( uibRoot, this.packageJson )
+        const fileName = join( uibRoot, this.packageJson )
 
         // Get it to class var or create minimal class var
         let res = this.readPackageJson(uibRoot)
@@ -382,10 +381,10 @@ class UibPackages {
         }
 
         const uibRoot = this.uib.rootFolder
-        const fileName = path.join( uibRoot, this.packageJson )
+        const fileName = join( uibRoot, this.packageJson )
 
-        // Make sure it exists & contains valid JSON - 
-        if ( !fs.existsSync(fileName) ) {
+        // Make sure it exists & contains valid JSON -
+        if ( !existsSync(fileName) ) {
             log.warn('[uibuilder:package-mgt:getUibRootPackageJson] No uibRoot/package.json file, creating minimal file.')
             this.setUibRootPackageJson()
         }
@@ -408,7 +407,7 @@ class UibPackages {
         pj.uibuilder.packages = {}
 
         if (this.uibPackageJson.dependencies !== pj.dependencies ) {
-            log.info(`[uibuilder:package-mgt:getUibRootPackageJson] package.json dependencies changed`)
+            log.info('[uibuilder:package-mgt:getUibRootPackageJson] package.json dependencies changed')
             // console.info({'pkg-deps': this.uibPackageJson.dependencies, 'memory-deps': pj.dependencies})
         }
 
@@ -432,14 +431,14 @@ class UibPackages {
 
         // Update the <uibRoot>/package.json file with updated details & Return it
         if (this.setUibRootPackageJson(pj) === true) return pj
-        
+
         // Failed
         return null
     } // ----- End of getUibRootPackageJson() ----- //
 
     /** Write updated <uibRoot>/package.json
      * @param {object} json The Object data to write to the file
-     * @returns {boolean} True if write was successful
+     * @returns {boolean|undefined} True if write was successful
      */
     setUibRootPackageJson(json) {
         if ( this.log === undefined ) throw this.#logUndefinedError
@@ -452,10 +451,10 @@ class UibPackages {
         }
 
         const uibRoot = this.uib.rootFolder
-        const fileName = path.join( uibRoot, this.packageJson )
+        const fileName = join( uibRoot, this.packageJson )
 
         if (!json) {
-            log.warn('[uibuilder:package-mgt:setUibRootPackageJson] Using dummy json')
+            this.log.warn('[uibuilder:package-mgt:setUibRootPackageJson] Using dummy json')
             json = {
                 'name': 'uib_root',
                 'version': this.uib.version,
@@ -474,12 +473,12 @@ class UibPackages {
         }
 
         try {
-            fs.writeJsonSync(fileName, json, { spaces: 2 })
+            writeJsonSync(fileName, json, { spaces: 2 })
             // Save it for use elsewhere
             this.uibPackageJson = json
             return true
         } catch (e) {
-            log.error(`[uibuilder:package-mgt:setUibRootPackageJson] Error writing ${fileName}. ${e.message}`)
+            this.log.error(`[uibuilder:package-mgt:setUibRootPackageJson] Error writing ${fileName}. ${e.message}`)
             this.uibPackageJson = null
             return false
         }
@@ -508,8 +507,8 @@ class UibPackages {
         if ( !Array.isArray(installRoot) ) installRoot = [installRoot]
 
         for (const r of installRoot) {
-            const loc = path.join(r, 'node_modules', packageName)
-            if (fs.existsSync( loc )) return loc
+            const loc = join(r, 'node_modules', packageName)
+            if (existsSync( loc )) return loc
         }
 
         this.log.warn(`[uibuilder:package-mgt:getPackagePath2] PACKAGE ${packageName} NOT FOUND`)

From 8e62560b95c61d5cf337c85d0a3037e2ccb43ebc Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Sun, 3 Dec 2023 15:34:22 +0000
Subject: [PATCH 28/78] Add dependencies

---
 docs/dev/README.md | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/docs/dev/README.md b/docs/dev/README.md
index d6bc8d47..91446118 100644
--- a/docs/dev/README.md
+++ b/docs/dev/README.md
@@ -10,6 +10,28 @@ lastUpdated: 2023-10-08 15:12:02
 
 * [Processes](processes/README.md)
 
+## Dependencies
+
+Due to its complexity, UIBUILDER has a higher than Node-RED average of external dependencies. Over time, these are reduced (e.g. `nanoid` can be replaced by a native library from node.js v19).
+
+### Client library dependencies
+
+* [Socket.IO Client](https://www.npmjs.com/package/socket.io-client) - This is the only dependency for the client. It is built into the client library and kept in step with the Socket.IO server library. It is required to manage secure communications between the client and Node-RED server.
+
+### Server dependencies
+
+* [@totallyinformation/ti-common-event-handler](https://www.npmjs.com/package/@totallyinformation/ti-common-event-handler) - My own shared library for doing extended event handling in Node.js. Allows for wildcards and is faster than Node's native event handler.
+* [degit](https://www.npmjs.com/package/degit) - Used to enable external uibuilder templates to be utilised from Git repositories - notably GitHub or GitLab.
+* [ejs](https://www.npmjs.com/package/ejs) - Embedded JavaScript Templates - an option in uibuilder that allows server-side templating.
+* [execa](https://www.npmjs.com/package/execa) - Process execution, used to run `npm` scripts/installs/updates/etc. Limited to v5 since later versions do not support CommonJS.
+* [ExpressJS](https://www.npmjs.com/package/express) - Node.js standard web server. Also used by Node-RED.
+* [fast-glob](https://www.npmjs.com/package/fast-glob) - Fast file find and traversal. Used in `libs/fs.js` only. **TO BE REMOVED IN THE FUTURE**
+* [fs-extra](https://www.npmjs.com/package/fs-extra) - Additional filing system methods. Used in several modules but is being slowly moved to `libs/fs.js` only. **IN THE PROCESS OF BEING REMOVED**
+* [jsdom](https://www.npmjs.com/package/jsdom) - Industry std Node.js module to simulate the browser DOM on the server. Used for the `uib-html` node to hydrate uibuilder's low-code JSON to HTML.
+* [nanoid](https://www.npmjs.com/package/nanoid) - Generate a short UUID as a stable client ID. Currently limited to v3 as that was the last version to support CommonJS. **To be replaced with native crypto uuid after Node.js is baseline**
+* [serve-index](https://www.npmjs.com/package/serve-index) - Simple module to enable serving of directory listings. Used in `libs/web.js`.
+* [Socket.IO](https://www.npmjs.com/package/socket.io) - Enhanced websockets.
+
 ## Server Libraries
 
 * [Server Libraries](dev/server-libs/README.md) - Information on each of the server libraries

From 29eab3d5c669980618c36c10fba28f799ac5ceec Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Sun, 3 Dec 2023 15:59:34 +0000
Subject: [PATCH 29/78] Updates

---
 CHANGELOG.md | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3db5d932..3767373a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -30,7 +30,7 @@ Please see the documentation for archived changelogs - a new archive is produced
 ## Ideas
 
 * `uib-template` - New node to take a msg._ui template input and update parts of it belore sending (e.g. parent, id, ...). `uib-override` or `uib-config`? [Ref](https://discourse.nodered.org/t/an-idea-for-third-party-ui-in-ui-builder/83196/4?u=totallyinformation)
-* `<uib-loop>`. [Ref](https://discourse.nodered.org/t/ui/82818/33?u=totallyinformation)
+* `<uib-loop>`. [Ref](https://discourse.nodered.org/t/ui/82818/33?u=totallyinformation) - A web component that takes a variable to loop over.
 * Enhance `uib-save` - allow URL to be driven by msg or context (just add new options to select, don't bother with typed input)
 
 ------------
@@ -87,6 +87,10 @@ Please see the documentation for archived changelogs - a new archive is produced
 * The front-end client functions page now has an alphabetical list of functions.
 * Improved low-code documentation for the `notify` and `alert` methods.
 
+## Other
+
+* More work done to move all filing system access into the single `libs/fs.js` library.
+* Usual ongoing work to tidy, clarify and simplify code & eliminate any small issues.
 
 ## [v6.7.0](https://github.com/TotallyInformation/node-red-contrib-uibuilder/compare/v6.6.0...v6.7.0)
 

From 0bd18c5deafac995650d0fe66dd5085f0572a895 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Tue, 5 Dec 2023 16:52:29 +0000
Subject: [PATCH 30/78] nopolling option added

---
 front-end/uibuilder.esm.js               |  9 +++++----
 front-end/uibuilder.esm.min.js           |  2 +-
 front-end/uibuilder.esm.min.js.map       |  4 ++--
 front-end/uibuilder.iife.js              |  9 +++++----
 front-end/uibuilder.iife.min.js          |  2 +-
 front-end/uibuilder.iife.min.js.map      |  4 ++--
 src/front-end-module/uibuilder.module.js | 11 ++++++-----
 7 files changed, 22 insertions(+), 19 deletions(-)

diff --git a/front-end/uibuilder.esm.js b/front-end/uibuilder.esm.js
index 8719e7d7..f776810f 100644
--- a/front-end/uibuilder.esm.js
+++ b/front-end/uibuilder.esm.js
@@ -5309,7 +5309,6 @@ var Uib = (_a = class {
   copyToClipboard(varToCopy) {
     let data = "";
     try {
-      console.log(this.get(varToCopy), JSON.stringify(this.get(varToCopy)));
       data = JSON.stringify(this.get(varToCopy));
     } catch (e) {
       log("error", "copyToClipboard", `Could not copy "${varToCopy}" to clipboard.`, e.message)();
@@ -5322,7 +5321,7 @@ var Uib = (_a = class {
    * Requires IntersectionObserver (available to all mainstream browsers from early 2019)
    * Automatically sends a msg back to Node-RED.
    * Requires the element to already exist.
-   * @returns {false}
+   * @returns {false} False if not visible
    */
   elementIsVisible() {
     const info = "elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex";
@@ -6480,10 +6479,12 @@ Client ID: ${this.clientId}`)();
     log("trace", "Uib:start", "ioNamespace: ", this.ioNamespace, `
 ioPath: ${this.ioPath}`)();
     if (options) {
-      if (options.ioNamespace !== void 0 && options.ioNamespace !== null && options.ioNamespace !== "")
+      if (options.ioNamespace)
         this.set("ioNamespace", options.ioNamespace);
-      if (options.ioPath !== void 0 && options.ioPath !== null && options.ioPath !== "")
+      if (options.ioPath)
         this.set("ioPath", options.ioPath);
+      if (options.nopolling && this.socketOptions.transports[0] === "polling")
+        this.socketOptions.transports.shift();
     }
     if (document.styleSheets.length >= 1 || document.styleSheets.length === 1 && document.styleSheets[0].cssRules.length === 0) {
       log("info", "Uib:start", "Styles already loaded so not loading uibuilder default styles.")();
diff --git a/front-end/uibuilder.esm.min.js b/front-end/uibuilder.esm.min.js
index 2c5f6b48..14305490 100644
--- a/front-end/uibuilder.esm.min.js
+++ b/front-end/uibuilder.esm.min.js
@@ -1,2 +1,2 @@
-var _t=Object.create;var le=Object.defineProperty;var Et=Object.getOwnPropertyDescriptor;var Ct=Object.getOwnPropertyNames;var St=Object.getPrototypeOf,xt=Object.prototype.hasOwnProperty;var Nt=(s,e,t)=>e in s?le(s,e,{enumerable:!0,configurable:!0,writable:!0,value:t}):s[e]=t;var De=(s=>typeof require<"u"?require:typeof Proxy<"u"?new Proxy(s,{get:(e,t)=>(typeof require<"u"?require:e)[t]}):s)(function(s){if(typeof require<"u")return require.apply(this,arguments);throw Error('Dynamic require of "'+s+'" is not supported')});var Ot=(s,e)=>()=>(e||s((e={exports:{}}).exports,e),e.exports),Rt=(s,e)=>{for(var t in e)le(s,t,{get:e[t],enumerable:!0})},At=(s,e,t,i)=>{if(e&&typeof e=="object"||typeof e=="function")for(let r of Ct(e))!xt.call(s,r)&&r!==t&&le(s,r,{get:()=>e[r],enumerable:!(i=Et(e,r))||i.enumerable});return s};var Ee=(s,e,t)=>(t=s!=null?_t(St(s)):{},At(e||!s||!s.__esModule?le(t,"default",{value:s,enumerable:!0}):t,s));var l=(s,e,t)=>(Nt(s,typeof e!="symbol"?e+"":e,t),t),Be=(s,e,t)=>{if(!e.has(s))throw TypeError("Cannot "+t)};var d=(s,e,t)=>(Be(s,e,"read from private field"),t?t.call(s):e.get(s)),C=(s,e,t)=>{if(e.has(s))throw TypeError("Cannot add the same private member more than once");e instanceof WeakSet?e.add(s):e.set(s,t)},A=(s,e,t,i)=>(Be(s,e,"write to private field"),i?i.call(s,t):e.set(s,t),t);var qe=Ot((ii,Pe)=>{var f,$t=(f=class{constructor(e,t,i){l(this,"version","6.8.0-src");l(this,"sanitiseExtraTags",["uib-var"]);l(this,"sanitiseExtraAttribs",["variable","report","undefined"]);l(this,"window");if(e)this.window=e;else throw new Error("Ui:constructor. Current environment does not include `window`, UI functions cannot be used.");this.document=this.window.document,t?f.log=t:f.log=function(){return function(){}},i?this.syntaxHighlight=i:this.syntaxHighlight=function(){}}_showNotification(e){e.topic&&!e.title&&(e.title=e.topic),e.title||(e.title="uibuilder notification"),e.payload&&!e.body&&(e.body=e.payload),e.body||(e.body=" No message given.");try{let t=new Notification(e.title,e);return new Promise((i,r)=>{t.addEventListener("close",n=>{n.currentTarget.userAction="close",i(n)}),t.addEventListener("click",n=>{n.currentTarget.userAction="click",i(n)}),t.addEventListener("error",n=>{n.currentTarget.userAction="error",r(n)})})}catch{return Promise.reject(new Error("Browser refused to create a Notification"))}}_uiAdd(e,t){f.log("trace","Ui:_uiManager:add","Starting _uiAdd")(),e.components.forEach((i,r)=>{f.log("trace","Ui:_uiAdd:components-forEach:".concat(r),"Component to add: ",i)();let n;switch(i.type){case"html":{i.ns="html",n=this.document.createElement("div");break}case"svg":{i.ns="svg",n=this.document.createElementNS("http://www.w3.org/2000/svg","svg");break}default:{i.ns="dom",n=this.document.createElement(i.type);break}}!i.slot&&e.payload&&(i.slot=e.payload),this._uiComposeComponent(n,i);let o;i.parentEl?o=i.parentEl:e.parentEl?o=e.parentEl:i.parent?o=this.document.querySelector(i.parent):e.parent&&(o=this.document.querySelector(e.parent)),o||(f.log("info","Ui:_uiAdd","No parent found, adding to body")(),o=this.document.querySelector("body")),i.position&&i.position==="first"?o.insertBefore(n,o.firstChild):i.position&&Number.isInteger(Number(i.position))?o.insertBefore(n,o.children[i.position]):o.appendChild(n),i.components&&this._uiExtendEl(n,i.components,i.ns)})}_uiComposeComponent(e,t){t.attributes&&Object.keys(t.attributes).forEach(i=>{i==="class"&&Array.isArray(t.attributes[i])&&t.attributes[i].join(" "),i==="value"&&(e.value=t.attributes[i]),i.startsWith("xlink:")?e.setAttributeNS("http://www.w3.org/1999/xlink",i,t.attributes[i]):e.setAttribute(i,t.attributes[i])}),t.id&&e.setAttribute("id",t.id),t.type==="svg"&&(e.setAttributeNS("http://www.w3.org/2000/xmlns/","xmlns","http://www.w3.org/2000/svg"),e.setAttributeNS("http://www.w3.org/2000/xmlns/","xmlns:xlink","http://www.w3.org/1999/xlink")),t.events&&Object.keys(t.events).forEach(i=>{i.toLowerCase==="onclick"&&(i="click");try{e.addEventListener(i,r=>{new Function("evt","".concat(t.events[i],"(evt)"))(r)})}catch(r){f.log("error","Ui:_uiComposeComponent","Add event '".concat(i,"' for element '").concat(t.type,"': Cannot add event handler. 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Adding instead.",t)(),this._uiAdd({components:[t]},!1);return}let n;switch(t.type){case"html":{t.ns="html",n=this.document.createElement("div");break}case"svg":{t.ns="svg",n=this.document.createElementNS("http://www.w3.org/2000/svg","svg");break}default:{t.ns="dom",n=this.document.createElement(t.type);break}}this._uiComposeComponent(n,t),r.replaceWith(n),t.components&&this._uiExtendEl(n,t.components,t.ns)})}_uiUpdate(e){f.log("trace","Ui:_uiManager:update","Starting _uiUpdate")(),e.components||(e.components=[Object.assign({},e)]),e.components.forEach((t,i)=>{f.log("trace","_uiUpdate:components-forEach","Component #".concat(i),t)();let r;if(t.id?r=this.document.querySelectorAll("#".concat(t.id)):t.selector||t.select?r=this.document.querySelectorAll(t.selector):t.name?r=this.document.querySelectorAll('[name="'.concat(t.name,'"]')):t.type&&(r=this.document.querySelectorAll(t.type)),r===void 0||r.length<1){f.log("warn","Ui:_uiManager:update","Cannot find the DOM element. 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"),u.message)(),u.message}if(!i.ok)return f.log(0,"Ui:include","Fetch of file '".concat(e,"' failed. Status='").concat(i.statusText,"'"))(),i.statusText;let r=await i.headers.get("content-type"),n=null;r&&(r.includes("text/html")?n="html":r.includes("application/json")?n="json":r.includes("multipart/form-data")?n="form":r.includes("image/")?n="image":r.includes("video/")?n="video":r.includes("application/pdf")?n="pdf":r.includes("text/plain")&&(n="text"));let o="",c="Include successful",h;switch(n){case"html":{h=await i.text(),o=h;break}case"json":{h=await i.json(),o='<pre class="syntax-highlight">',o+=this.syntaxHighlight(h),o+="</pre>";break}case"form":{h=await i.formData(),o='<pre class="syntax-highlight">',o+=this.syntaxHighlight(h),o+="</pre>";break}case"image":{h=await i.blob(),o='<img src="'.concat(URL.createObjectURL(h),'">'),this.window.DOMPurify&&(c="Include successful. 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name(){return"websocket"}doOpen(){if(!this.check())return;let e=this.uri(),t=this.opts.protocols,i=dt?{}:de(this.opts,"agent","perMessageDeflate","pfx","key","passphrase","cert","ca","ciphers","rejectUnauthorized","localAddress","protocolVersion","origin","maxPayload","family","checkServerIdentity");this.opts.extraHeaders&&(i.headers=this.opts.extraHeaders);try{this.ws=ye&&!dt?t?new ie(e,t):new ie(e):new ie(e,t,i)}catch(r){return this.emitReserved("error",r)}this.ws.binaryType=this.socket.binaryType,this.addEventListeners()}addEventListeners(){this.ws.onopen=()=>{this.opts.autoUnref&&this.ws._socket.unref(),this.onOpen()},this.ws.onclose=e=>this.onClose({description:"websocket connection closed",context:e}),this.ws.onmessage=e=>this.onData(e.data),this.ws.onerror=e=>this.onError("websocket error",e)}write(e){this.writable=!1;for(let t=0;t<e.length;t++){let i=e[t],r=t===e.length-1;Z(i,this.supportsBinary,n=>{let 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t=et(Number.MAX_SAFE_INTEGER,this.socket.binaryType),i=e.readable.pipeThrough(t).getReader(),r=Ze();r.readable.pipeTo(e.writable),this.writer=r.writable.getWriter();let n=()=>{i.read().then(({done:c,value:h})=>{c||(this.onPacket(h),n())}).catch(c=>{})};n();let o={type:"open"};this.query.sid&&(o.data='{"sid":"'.concat(this.query.sid,'"}')),this.writer.write(o).then(()=>this.onOpen())})}))}write(e){this.writable=!1;for(let t=0;t<e.length;t++){let i=e[t],r=t===e.length-1;this.writer.write(i).then(()=>{r&&D(()=>{this.writable=!0,this.emitReserved("drain")},this.setTimeoutFn)})}}doClose(){var e;(e=this.transport)===null||e===void 0||e.close()}};var Re={websocket:be,webtransport:we,polling:ge};var Vt=/^(?:(?![^:@\/?#]+:[^:@\/]*@)(http|https|ws|wss):\/\/)?((?:(([^:@\/?#]*)(?::([^:@\/?#]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/,Ft=["source","protocol","authority","userInfo","user","password","host","port","relative","path","directory","file","query","anchor"];function j(s){if(s.length>2e3)throw"URI too long";let e=s,t=s.indexOf("["),i=s.indexOf("]");t!=-1&&i!=-1&&(s=s.substring(0,t)+s.substring(t,i).replace(/:/g,";")+s.substring(i,s.length));let r=Vt.exec(s||""),n={},o=14;for(;o--;)n[Ft[o]]=r[o]||"";return t!=-1&&i!=-1&&(n.source=e,n.host=n.host.substring(1,n.host.length-1).replace(/;/g,":"),n.authority=n.authority.replace("[","").replace("]","").replace(/;/g,":"),n.ipv6uri=!0),n.pathNames=jt(n,n.path),n.queryKey=Wt(n,n.query),n}function jt(s,e){let t=/\/{2,9}/g,i=e.replace(t,"/").split("/");return(e.slice(0,1)=="/"||e.length===0)&&i.splice(0,1),e.slice(-1)=="/"&&i.splice(i.length-1,1),i}function Wt(s,e){let t={};return e.replace(/(?:^|&)([^&=]*)=?([^&]*)/g,function(i,r,n){r&&(t[r]=n)}),t}var B=class s extends b{constructor(e,t={}){super(),this.binaryType=ut,this.writeBuffer=[],e&&typeof e=="object"&&(t=e,e=null),e?(e=j(e),t.hostname=e.host,t.secure=e.protocol==="https"||e.protocol==="wss",t.port=e.port,e.query&&(t.query=e.query)):t.host&&(t.hostname=j(t.host).host),T(this,t),this.secure=t.secure!=null?t.secure:typeof location<"u"&&location.protocol==="https:",t.hostname&&!t.port&&(t.port=this.secure?"443":"80"),this.hostname=t.hostname||(typeof location<"u"?location.hostname:"localhost"),this.port=t.port||(typeof location<"u"&&location.port?location.port:this.secure?"443":"80"),this.transports=t.transports||["polling","websocket","webtransport"],this.writeBuffer=[],this.prevBufferLen=0,this.opts=Object.assign({path:"/engine.io",agent:!1,withCredentials:!1,upgrade:!0,timestampParam:"t",rememberUpgrade:!1,addTrailingSlash:!0,rejectUnauthorized:!0,perMessageDeflate:{threshold:1024},transportOptions:{},closeOnBeforeunload:!1},t),this.opts.path=this.opts.path.replace(/\/$/,"")+(this.opts.addTrailingSlash?"/":""),typeof this.opts.query=="string"&&(this.opts.query=st(this.opts.query)),this.id=null,this.upgrades=null,this.pingInterval=null,this.pingTimeout=null,this.pingTimeoutTimer=null,typeof addEventListener=="function"&&(this.opts.closeOnBeforeunload&&(this.beforeunloadEventListener=()=>{this.transport&&(this.transport.removeAllListeners(),this.transport.close())},addEventListener("beforeunload",this.beforeunloadEventListener,!1)),this.hostname!=="localhost"&&(this.offlineEventListener=()=>{this.onClose("transport close",{description:"network connection lost"})},addEventListener("offline",this.offlineEventListener,!1))),this.open()}createTransport(e){let t=Object.assign({},this.opts.query);t.EIO=xe,t.transport=e,this.id&&(t.sid=this.id);let i=Object.assign({},this.opts,{query:t,socket:this,hostname:this.hostname,secure:this.secure,port:this.port},this.opts.transportOptions[e]);return new Re[e](i)}open(){let e;if(this.opts.rememberUpgrade&&s.priorWebsocketSuccess&&this.transports.indexOf("websocket")!==-1)e="websocket";else if(this.transports.length===0){this.setTimeoutFn(()=>{this.emitReserved("error","No transports available")},0);return}else e=this.transports[0];this.readyState="opening";try{e=this.createTransport(e)}catch{this.transports.shift(),this.open();return}e.open(),this.setTransport(e)}setTransport(e){this.transport&&this.transport.removeAllListeners(),this.transport=e,e.on("drain",this.onDrain.bind(this)).on("packet",this.onPacket.bind(this)).on("error",this.onError.bind(this)).on("close",t=>this.onClose("transport close",t))}probe(e){let t=this.createTransport(e),i=!1;s.priorWebsocketSuccess=!1;let r=()=>{i||(t.send([{type:"ping",data:"probe"}]),t.once("packet",x=>{if(!i)if(x.type==="pong"&&x.data==="probe"){if(this.upgrading=!0,this.emitReserved("upgrading",t),!t)return;s.priorWebsocketSuccess=t.name==="websocket",this.transport.pause(()=>{i||this.readyState!=="closed"&&(y(),this.setTransport(t),t.send([{type:"upgrade"}]),this.emitReserved("upgrade",t),t=null,this.upgrading=!1,this.flush())})}else{let k=new Error("probe error");k.transport=t.name,this.emitReserved("upgradeError",k)}}))};function n(){i||(i=!0,y(),t.close(),t=null)}let o=x=>{let k=new Error("probe error: "+x);k.transport=t.name,n(),this.emitReserved("upgradeError",k)};function c(){o("transport closed")}function h(){o("socket closed")}function u(x){t&&x.name!==t.name&&n()}let y=()=>{t.removeListener("open",r),t.removeListener("error",o),t.removeListener("close",c),this.off("close",h),this.off("upgrading",u)};t.once("open",r),t.once("error",o),t.once("close",c),this.once("close",h),this.once("upgrading",u),this.upgrades.indexOf("webtransport")!==-1&&e!=="webtransport"?this.setTimeoutFn(()=>{i||t.open()},200):t.open()}onOpen(){if(this.readyState="open",s.priorWebsocketSuccess=this.transport.name==="websocket",this.emitReserved("open"),this.flush(),this.readyState==="open"&&this.opts.upgrade){let e=0,t=this.upgrades.length;for(;e<t;e++)this.probe(this.upgrades[e])}}onPacket(e){if(this.readyState==="opening"||this.readyState==="open"||this.readyState==="closing")switch(this.emitReserved("packet",e),this.emitReserved("heartbeat"),this.resetPingTimeout(),e.type){case"open":this.onHandshake(JSON.parse(e.data));break;case"ping":this.sendPacket("pong"),this.emitReserved("ping"),this.emitReserved("pong");break;case"error":let t=new Error("server 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e=this.getWritablePackets();this.transport.send(e),this.prevBufferLen=e.length,this.emitReserved("flush")}}getWritablePackets(){if(!(this.maxPayload&&this.transport.name==="polling"&&this.writeBuffer.length>1))return this.writeBuffer;let t=1;for(let i=0;i<this.writeBuffer.length;i++){let r=this.writeBuffer[i].data;if(r&&(t+=tt(r)),i>0&&t>this.maxPayload)return this.writeBuffer.slice(0,i);t+=2}return this.writeBuffer}write(e,t,i){return this.sendPacket("message",e,t,i),this}send(e,t,i){return this.sendPacket("message",e,t,i),this}sendPacket(e,t,i,r){if(typeof t=="function"&&(r=t,t=void 0),typeof i=="function"&&(r=i,i=null),this.readyState==="closing"||this.readyState==="closed")return;i=i||{},i.compress=i.compress!==!1;let n={type:e,data:t,options:i};this.emitReserved("packetCreate",n),this.writeBuffer.push(n),r&&this.once("flush",r),this.flush()}close(){let e=()=>{this.onClose("forced close"),this.transport.close()},t=()=>{this.off("upgrade",t),this.off("upgradeError",t),e()},i=()=>{this.once("upgrade",t),this.once("upgradeError",t)};return(this.readyState==="opening"||this.readyState==="open")&&(this.readyState="closing",this.writeBuffer.length?this.once("drain",()=>{this.upgrading?i():e()}):this.upgrading?i():e()),this}onError(e){s.priorWebsocketSuccess=!1,this.emitReserved("error",e),this.onClose("transport error",e)}onClose(e,t){(this.readyState==="opening"||this.readyState==="open"||this.readyState==="closing")&&(this.clearTimeoutFn(this.pingTimeoutTimer),this.transport.removeAllListeners("close"),this.transport.close(),this.transport.removeAllListeners(),typeof removeEventListener=="function"&&(removeEventListener("beforeunload",this.beforeunloadEventListener,!1),removeEventListener("offline",this.offlineEventListener,!1)),this.readyState="closed",this.id=null,this.emitReserved("close",e,t),this.writeBuffer=[],this.prevBufferLen=0)}filterUpgrades(e){let t=[],i=0,r=e.length;for(;i<r;i++)~this.transports.indexOf(e[i])&&t.push(e[i]);return t}};B.protocol=xe;var fs=B.protocol;function ft(s,e="",t){let i=s;t=t||typeof location<"u"&&location,s==null&&(s=t.protocol+"//"+t.host),typeof s=="string"&&(s.charAt(0)==="/"&&(s.charAt(1)==="/"?s=t.protocol+s:s=t.host+s),/^(https?|wss?):\/\//.test(s)||(typeof t<"u"?s=t.protocol+"//"+s:s="https://"+s),i=j(s)),i.port||(/^(http|ws)$/.test(i.protocol)?i.port="80":/^(http|ws)s$/.test(i.protocol)&&(i.port="443")),i.path=i.path||"/";let n=i.host.indexOf(":")!==-1?"["+i.host+"]":i.host;return i.id=i.protocol+"://"+n+":"+i.port+e,i.href=i.protocol+"://"+n+(t&&t.port===i.port?"":":"+i.port),i}var Ie={};Rt(Ie,{Decoder:()=>Le,Encoder:()=>Te,PacketType:()=>p,protocol:()=>bt});var Kt=typeof ArrayBuffer=="function",Jt=s=>typeof ArrayBuffer.isView=="function"?ArrayBuffer.isView(s):s.buffer instanceof ArrayBuffer,pt=Object.prototype.toString,zt=typeof Blob=="function"||typeof Blob<"u"&&pt.call(Blob)==="[object BlobConstructor]",Yt=typeof File=="function"||typeof File<"u"&&pt.call(File)==="[object FileConstructor]";function re(s){return Kt&&(s instanceof ArrayBuffer||Jt(s))||zt&&s instanceof Blob||Yt&&s instanceof File}function se(s,e){if(!s||typeof s!="object")return!1;if(Array.isArray(s)){for(let t=0,i=s.length;t<i;t++)if(se(s[t]))return!0;return!1}if(re(s))return!0;if(s.toJSON&&typeof s.toJSON=="function"&&arguments.length===1)return se(s.toJSON(),!0);for(let t in s)if(Object.prototype.hasOwnProperty.call(s,t)&&se(s[t]))return!0;return!1}function mt(s){let e=[],t=s.data,i=s;return i.data=Ae(t,e),i.attachments=e.length,{packet:i,buffers:e}}function Ae(s,e){if(!s)return s;if(re(s)){let t={_placeholder:!0,num:e.length};return e.push(s),t}else if(Array.isArray(s)){let t=new Array(s.length);for(let i=0;i<s.length;i++)t[i]=Ae(s[i],e);return t}else if(typeof s=="object"&&!(s instanceof Date)){let t={};for(let i in s)Object.prototype.hasOwnProperty.call(s,i)&&(t[i]=Ae(s[i],e));return t}return s}function gt(s,e){return s.data=$e(s.data,e),delete s.attachments,s}function $e(s,e){if(!s)return s;if(s&&s._placeholder===!0){if(typeof s.num=="number"&&s.num>=0&&s.num<e.length)return e[s.num];throw new Error("illegal attachments")}else if(Array.isArray(s))for(let t=0;t<s.length;t++)s[t]=$e(s[t],e);else if(typeof s=="object")for(let t in s)Object.prototype.hasOwnProperty.call(s,t)&&(s[t]=$e(s[t],e));return s}var Gt=["connect","connect_error","disconnect","disconnecting","newListener","removeListener"],bt=5,p;(function(s){s[s.CONNECT=0]="CONNECT",s[s.DISCONNECT=1]="DISCONNECT",s[s.EVENT=2]="EVENT",s[s.ACK=3]="ACK",s[s.CONNECT_ERROR=4]="CONNECT_ERROR",s[s.BINARY_EVENT=5]="BINARY_EVENT",s[s.BINARY_ACK=6]="BINARY_ACK"})(p||(p={}));var Te=class{constructor(e){this.replacer=e}encode(e){return(e.type===p.EVENT||e.type===p.ACK)&&se(e)?this.encodeAsBinary({type:e.type===p.EVENT?p.BINARY_EVENT:p.BINARY_ACK,nsp:e.nsp,data:e.data,id:e.id}):[this.encodeAsString(e)]}encodeAsString(e){let t=""+e.type;return(e.type===p.BINARY_EVENT||e.type===p.BINARY_ACK)&&(t+=e.attachments+"-"),e.nsp&&e.nsp!=="/"&&(t+=e.nsp+","),e.id!=null&&(t+=e.id),e.data!=null&&(t+=JSON.stringify(e.data,this.replacer)),t}encodeAsBinary(e){let t=mt(e),i=this.encodeAsString(t.packet),r=t.buffers;return r.unshift(i),r}};function yt(s){return Object.prototype.toString.call(s)==="[object Object]"}var Le=class s extends b{constructor(e){super(),this.reviver=e}add(e){let t;if(typeof e=="string"){if(this.reconstructor)throw new Error("got plaintext data when reconstructing a packet");t=this.decodeString(e);let i=t.type===p.BINARY_EVENT;i||t.type===p.BINARY_ACK?(t.type=i?p.EVENT:p.ACK,this.reconstructor=new Ue(t),t.attachments===0&&super.emitReserved("decoded",t)):super.emitReserved("decoded",t)}else if(re(e)||e.base64)if(this.reconstructor)t=this.reconstructor.takeBinaryData(e),t&&(this.reconstructor=null,super.emitReserved("decoded",t));else throw new Error("got binary data when not reconstructing a packet");else throw new Error("Unknown type: "+e)}decodeString(e){let t=0,i={type:Number(e.charAt(0))};if(p[i.type]===void 0)throw new Error("unknown packet type "+i.type);if(i.type===p.BINARY_EVENT||i.type===p.BINARY_ACK){let n=t+1;for(;e.charAt(++t)!=="-"&&t!=e.length;);let o=e.substring(n,t);if(o!=Number(o)||e.charAt(t)!=="-")throw new Error("Illegal attachments");i.attachments=Number(o)}if(e.charAt(t+1)==="/"){let n=t+1;for(;++t&&!(e.charAt(t)===","||t===e.length););i.nsp=e.substring(n,t)}else i.nsp="/";let r=e.charAt(t+1);if(r!==""&&Number(r)==r){let n=t+1;for(;++t;){let o=e.charAt(t);if(o==null||Number(o)!=o){--t;break}if(t===e.length)break}i.id=Number(e.substring(n,t+1))}if(e.charAt(++t)){let n=this.tryParse(e.substr(t));if(s.isPayloadValid(i.type,n))i.data=n;else throw new Error("invalid payload")}return i}tryParse(e){try{return JSON.parse(e,this.reviver)}catch{return!1}}static isPayloadValid(e,t){switch(e){case p.CONNECT:return yt(t);case p.DISCONNECT:return t===void 0;case 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t=""+e.type;return(e.type===p.BINARY_EVENT||e.type===p.BINARY_ACK)&&(t+=e.attachments+"-"),e.nsp&&e.nsp!=="/"&&(t+=e.nsp+","),e.id!=null&&(t+=e.id),e.data!=null&&(t+=JSON.stringify(e.data,this.replacer)),t}encodeAsBinary(e){let t=mt(e),i=this.encodeAsString(t.packet),r=t.buffers;return r.unshift(i),r}};function yt(s){return Object.prototype.toString.call(s)==="[object Object]"}var Le=class s extends b{constructor(e){super(),this.reviver=e}add(e){let t;if(typeof e=="string"){if(this.reconstructor)throw new Error("got plaintext data when reconstructing a packet");t=this.decodeString(e);let i=t.type===p.BINARY_EVENT;i||t.type===p.BINARY_ACK?(t.type=i?p.EVENT:p.ACK,this.reconstructor=new Ue(t),t.attachments===0&&super.emitReserved("decoded",t)):super.emitReserved("decoded",t)}else if(re(e)||e.base64)if(this.reconstructor)t=this.reconstructor.takeBinaryData(e),t&&(this.reconstructor=null,super.emitReserved("decoded",t));else throw new Error("got binary data when not reconstructing a 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this._addToQueue(t),this;let i={type:p.EVENT,data:t};if(i.options={},i.options.compress=this.flags.compress!==!1,typeof t[t.length-1]=="function"){let o=this.ids++,c=t.pop();this._registerAckCallback(o,c),i.id=o}let r=this.io.engine&&this.io.engine.transport&&this.io.engine.transport.writable;return this.flags.volatile&&(!r||!this.connected)||(this.connected?(this.notifyOutgoingListeners(i),this.packet(i)):this.sendBuffer.push(i)),this.flags={},this}_registerAckCallback(e,t){var i;let r=(i=this.flags.timeout)!==null&&i!==void 0?i:this._opts.ackTimeout;if(r===void 0){this.acks[e]=t;return}let n=this.io.setTimeoutFn(()=>{delete this.acks[e];for(let o=0;o<this.sendBuffer.length;o++)this.sendBuffer[o].id===e&&this.sendBuffer.splice(o,1);t.call(this,new Error("operation has timed out"))},r);this.acks[e]=(...o)=>{this.io.clearTimeoutFn(n),t.apply(this,[null,...o])}}emitWithAck(e,...t){let i=this.flags.timeout!==void 0||this._opts.ackTimeout!==void 0;return new 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Make sure that you wrap the call in a function: `doEvent: function (event) { uibuilder.eventSend(event) },`")();return}if(!e&&!event){a("warn","Uib:eventSend","Neither the domevent nor the hidden event properties are set. You probably called this function directly rather than applying to an on click event.")();return}if((!e||!e.constructor)&&(e=event),!e.constructor.name.endsWith("Event")||!e.currentTarget){a("warn","Uib:eventSend","ARGUMENT NOT A DOM EVENT - use data attributes not function arguments to pass data. Arg Type: ".concat(e.constructor.name),e)();return}e.preventDefault();let i=e.currentTarget,r={};Object.keys(i).forEach(g=>{g.startsWith("_")||(r[g]=i[g])});let n=["class","id","name"],o;try{o=Object.assign({},...Array.from(i.attributes,({name:g,value:_e})=>{if(!n.includes(g))return{[g]:_e}}))}catch{}let c,h=[];i.form&&(c={},c.valid=i.form.checkValidity(),Object.values(i.form).forEach((g,_e)=>{let V=g.id!==""?g.id:g.name!==""?g.name:"".concat(_e,"-").concat(g.type);if(V!==""&&g.type){if("checked"in g&&g.value==="on"&&(g.value=g.checked.toString()),h.push({key:V,val:g.value}),c[V]={id:g.id,name:g.name,value:g.value,valid:g.checkValidity(),type:g.type},c[V].valid===!1){let w=g.validity;c[V].validity={badInput:w.badInput===!0?w.badInput:void 0,customError:w.customError===!0?w.customError:void 0,patternMismatch:w.patternMismatch===!0?w.patternMismatch:void 0,rangeOverflow:w.rangeOverflow===!0?w.rangeOverflow:void 0,rangeUnderflow:w.rangeUnderflow===!0?w.rangeUnderflow:void 0,stepMismatch:w.stepMismatch===!0?w.stepMismatch:void 0,tooLong:w.tooLong===!0?w.tooLong:void 0,tooShort:w.tooShort===!0?w.tooShort:void 0,typeMismatch:w.typeMismatch===!0?w.typeMismatch:void 0,valueMissing:w.valueMissing===!0?w.valueMissing:void 0}}g.dataset&&(c[V].data=g.dataset)}}));let u;try{u=Array.from(i.classList)}catch{}let y={...i.dataset},x;Object.prototype.toString.call(i)==="[object Notification]"&&(y="notification-".concat(i.userAction),x={actions:i.actions,badge:i.badge,body:i.body,data:i.data,dir:i.dir,icon:i.icon,image:i.image,lang:i.lang,renotify:i.renotify,requireInteraction:i.requireInteraction,silent:i.silent,tag:i.tag,timestamp:i.timestamp,title:i.title,vibrate:i.vibrate});let k={payload:y,_ui:{type:"eventSend",id:i.id!==""?i.id:void 0,name:i.name!==""?i.name:void 0,slotText:i.textContent?i.textContent.substring(0,255):void 0,form:c,props:r,attribs:o,classes:u,notification:x,event:e.type,altKey:e.altKey,ctrlKey:e.ctrlKey,shiftKey:e.shiftKey,metaKey:e.metaKey,pointerType:e.pointerType,nodeName:i.nodeName,clientId:this.clientId,pageName:this.pageName,tabId:this.tabId}};h.length>0&&h.forEach(g=>{k.payload[g.key]=g.val}),e.type==="change"&&(k._ui.newValue=k.payload.value="checked"in i?i.checked:e.target.value),a("trace","Uib:eventSend","Sending msg to Node-RED",k)(),i.dataset&&i.dataset.length===0&&a("warn","Uib:eventSend","No payload in msg. data-* attributes should be used.")(),this._send(k,this._ioChannels.client,t)}send(e,t=""){this._send(e,this._ioChannels.client,t)}sendCtrl(e){this._send(e,this._ioChannels.control)}_getIOnamespace(){let e;if(e=this.cookies["uibuilder-namespace"],e===void 0||e===""){let t=window.location.pathname.split("/").filter(function(i){return i.trim()!==""});t.length>0&&t[t.length-1].endsWith(".html")&&t.pop(),e=t.pop(),a("trace","uibuilder.module.js:getIOnamespace","Socket.IO namespace found via url path: ".concat(e))()}else a("trace","uibuilder.module.js:getIOnamespace","Socket.IO namespace found via cookie: ".concat(e))();return this.url=e,e="/"+e,a("trace","uibuilder.module.js:getIOnamespace","Final Socket.IO namespace: ".concat(e))(),e}_checkConnect(e,t,i=1){if(navigator.onLine!==!1)return e||(e=this.retryMs),t||(t=this.retryFactor),a("trace","Uib:checkConnect","Checking connection. Connected: ".concat(this._socket.connected,". Timer: ").concat(d(this,_),". Depth: ").concat(i,". Delay: ").concat(e,". Factor: ").concat(t),this._socket)(),this._socket.connected===!0?(d(this,_)&&(window.clearTimeout(d(this,_)),A(this,_,null)),this.set("ioConnected",!0),this.set("socketError",null),!0):(this.set("ioConnected",!1),d(this,_)&&window.clearTimeout(d(this,_)),A(this,_,window.setTimeout(()=>{a("warn","Uib:checkConnect:setTimeout","Socket.IO reconnection attempt. Current delay: ".concat(e,". Depth: ").concat(i))(),this._socket.close(),this._socket.connect(),A(this,_,null),this._checkConnect(e*t,t,i++)},e)),!1)}_onConnect(){a("info","Uib:ioSetup","\u2705 SOCKET CONNECTED. Connection count: ".concat(this.connectedNum,", Is a Recovery?: ").concat(this._socket.recovered,". \nNamespace: ").concat(this.ioNamespace))(),this._dispatchCustomEvent("uibuilder:socket:connected",{numConnections:this.connectedNum,isRecovery:this._socket.recovered}),this._checkConnect()}_onDisconnect(e){a("info","Uib:ioSetup:socket-disconnect","\u26D4 Socket Disconnected. Reason: ".concat(e))(),this._dispatchCustomEvent("uibuilder:socket:disconnected",e),this._checkConnect()}_ioSetup(){return J===void 0?(a("error","Uib:ioSetup","Socket.IO client not loaded, Node-RED comms will not work")(),!1):(this._socket&&(a("trace","Uib:ioSetup","Removing listeners in preparation for redoing Socket.IO connections")(),d(this,_)&&(window.clearTimeout(d(this,_)),A(this,_,null)),this._socket.close(),this._socket.offAny(),this._socket=void 0,this.set("ioConnected",!1)),this.socketOptions.path=this.ioPath,a("trace","Uib:ioSetup","About to create IO object. Transports: [".concat(this.socketOptions.transports.join(", "),"]"))(),this._socket=J(this.ioNamespace,this.socketOptions),this._socket.on("connect",this._onConnect.bind(this)),this._socket.on(this._ioChannels.server,this._stdMsgFromServer.bind(this)),this._socket.on(this._ioChannels.control,this._ctrlMsgFromServer.bind(this)),this._socket.on("disconnect",this._onDisconnect.bind(this)),this._socket.on("connect_error",e=>{navigator.onLine!==!1&&(a("error","Uib:ioSetup:connect_error","\u274C Socket.IO Connect Error. Reason: ".concat(e.message),e)(),this.set("ioConnected",!1),this.set("socketError",e),this._dispatchCustomEvent("uibuilder:socket:disconnected",e))}),this._socket.on("error",e=>{a("error","Uib:ioSetup:error","\u274C Socket.IO Error. Reason: ".concat(e.message),e)(),this.set("ioConnected",!1),this.set("socketError",e),this._dispatchCustomEvent("uibuilder:socket:disconnected",e)}),this._checkConnect(),!0)}start(e){a("trace","Uib:start","Starting")(),d(this,oe)&&this.cancelChange("msg",d(this,oe)),this.started===!0&&a("info","Uib:start","Start function already called. Resetting Socket.IO and msg handler.")(),a("log","Uib:start","Cookies: ",this.cookies,"\nClient ID: ".concat(this.clientId))(),a("trace","Uib:start","ioNamespace: ",this.ioNamespace,"\nioPath: ".concat(this.ioPath))(),e&&(e.ioNamespace&&this.set("ioNamespace",e.ioNamespace),e.ioPath&&this.set("ioPath",e.ioPath),e.nopolling&&this.socketOptions.transports[0]==="polling"&&this.socketOptions.transports.shift()),document.styleSheets.length>=1||document.styleSheets.length===1&&document.styleSheets[0].cssRules.length===0?a("info","Uib:start","Styles already loaded so not loading uibuilder default styles.")():e&&e.loadStylesheet===!1?a("info","Uib:start","No styles loaded & options.loadStylesheet === false.")():(a("info","Uib:start","No styles loaded, loading uibuilder default styles.")(),this.loadStyleSrc("".concat(this.httpNodeRoot,"/uibuilder/uib-brand.min.css")));let[t]=performance.getEntriesByType("navigation");if(this.set("lastNavType",t.type),this.set("started",this._ioSetup()),this.started===!0?a("trace","Uib:start","Start completed. Socket.IO client library loaded.")():a("error","Uib:start","Start completed. ERROR: Socket.IO client library NOT LOADED.")(),this._watchHashChanges(),window.Vue){this.set("isVue",!0);try{this.set("vueVersion",window.Vue.version)}catch{}a("trace","Uib:start","VueJS is loaded. Version: ".concat(this.vueVersion))()}else a("trace","Uib:start","VueJS is not loaded.")();window.DOMPurify?(this.set("purify",!0),a("trace","Uib:start","DOMPurify is loaded.")()):a("trace","Uib:start","DOMPurify is not loaded.")(),window.markdownit?(this.set("markdown",!0),a("trace","Uib:start","Markdown-IT is loaded.")()):a("trace","Uib:start","Markdown-IT is not loaded.")(),this.onChange("msg",i=>{if(d(this,z)===!0){let r=document.getElementById("uib_last_msg");r&&(r.innerHTML=this.syntaxHighlight(i))}}),this._dispatchCustomEvent("uibuilder:startComplete")}},q=new WeakMap,N=new WeakMap,$=new WeakMap,_=new WeakMap,oe=new WeakMap,z=new WeakMap,Y=new WeakMap,H=new WeakMap,ve=new WeakMap,ae=new WeakMap,ce=new WeakMap,M=new WeakMap,l(E,"_meta",{version:wt,type:"module",displayName:"uibuilder"}),E),ke=new ei;window.uibuilder?a("error","uibuilder.module.js","`uibuilder` already assigned to window. Have you tried to load it more than once?"):window.uibuilder=ke;window.uib?a("warn","uibuilder.module.js","`uib` shortcut already assigned to window."):window.uib=ke;window.$?a("warn","uibuilder.module.js","Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` or `uib.$` instead."):window.$=window.uibuilder.$;window.$$?a("warn","uibuilder.module.js","Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` or `uib.$$` instead."):window.$$=window.uibuilder.$$;window.$ui?a("warn","uibuilder.module.js","Cannot allocate the global `$ui`, it is already in use. Use `uibuilder.$ui` or `uib.$ui` instead."):window.$ui=window.uibuilder.$ui;var Js=ke;ke.start();customElements.define("uib-var",G);export{ei as Uib,Js as default,ke as uibuilder};
 //# sourceMappingURL=uibuilder.esm.min.js.map
diff --git a/front-end/uibuilder.esm.min.js.map b/front-end/uibuilder.esm.min.js.map
index e46bd7d8..5d6bd53d 100644
--- a/front-end/uibuilder.esm.min.js.map
+++ b/front-end/uibuilder.esm.min.js.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
   "sources": ["src/front-end-module/ui.js", "src/front-end-module/uibuilder.module.js", "src/components/uib-var.js", "node_modules/engine.io-parser/build/esm/commons.js", "node_modules/engine.io-parser/build/esm/encodePacket.browser.js", "node_modules/engine.io-parser/build/esm/contrib/base64-arraybuffer.js", "node_modules/engine.io-parser/build/esm/decodePacket.browser.js", "node_modules/engine.io-parser/build/esm/index.js", "node_modules/@socket.io/component-emitter/index.mjs", "node_modules/engine.io-client/build/esm/globalThis.browser.js", "node_modules/engine.io-client/build/esm/util.js", "node_modules/engine.io-client/build/esm/contrib/parseqs.js", "node_modules/engine.io-client/build/esm/transport.js", "node_modules/engine.io-client/build/esm/contrib/yeast.js", "node_modules/engine.io-client/build/esm/contrib/has-cors.js", "node_modules/engine.io-client/build/esm/transports/xmlhttprequest.browser.js", "node_modules/engine.io-client/build/esm/transports/polling.js", "node_modules/engine.io-client/build/esm/transports/websocket-constructor.browser.js", "node_modules/engine.io-client/build/esm/transports/websocket.js", "node_modules/engine.io-client/build/esm/transports/webtransport.js", "node_modules/engine.io-client/build/esm/transports/index.js", "node_modules/engine.io-client/build/esm/contrib/parseuri.js", "node_modules/engine.io-client/build/esm/socket.js", "node_modules/engine.io-client/build/esm/index.js", "node_modules/socket.io-client/build/esm/url.js", "node_modules/socket.io-parser/build/esm/index.js", "node_modules/socket.io-parser/build/esm/is-binary.js", "node_modules/socket.io-parser/build/esm/binary.js", "node_modules/socket.io-client/build/esm/on.js", "node_modules/socket.io-client/build/esm/socket.js", "node_modules/socket.io-client/build/esm/contrib/backo2.js", "node_modules/socket.io-client/build/esm/manager.js", "node_modules/socket.io-client/build/esm/index.js"],
-  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\n// Namespaces - See https://stackoverflow.com/a/52572048/1309986\n// const NAMESPACES = {\n//     svg: 'http://www.w3.org/2000/svg',\n//     html: 'http://www.w3.org/1999/xhtml',\n//     xml: 'http://www.w3.org/XML/1998/namespace',\n//     xlink: 'http://www.w3.org/1999/xlink',\n//     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n// }\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    //#region ---- Internal Methods ----\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                if (attrib === 'class' && Array.isArray(comp.attributes[attrib])) comp.attributes[attrib].join(' ')\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n    } // --- end of _uiManager ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    //#endregion ---- -------- ----\n    //#region ---- External Methods ----\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {HTMLElement|null} Selected HTML element or null\n     */\n    $(cssSelector) {\n        /** @type {*} Some kind of HTML element */\n        let el = document.querySelector(cssSelector)\n\n        if (!el) {\n            Ui.log(1, 'Uib:$', `No element found for CSS selector ${cssSelector}`)()\n            return null\n        }\n\n        if ( el.nodeName === 'TEMPLATE' ) {\n            el = el.content.firstElementChild\n            if (!el) {\n                Ui.log(0, 'Uib:$', `Template selected for CSS selector ${cssSelector} but it is empty`)()\n                return null\n            }\n        }\n\n        return el\n    }\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {string} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {HTMLElement[]} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$(cssSelector) {\n        return Array.from(document.querySelectorAll(cssSelector))\n    }\n\n    /** Add 1 or several class names to an element\n     * @param {string|string[]} classNames Single or array of classnames\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    addClass(classNames, el) {\n        if (!Array.isArray(classNames)) classNames = [classNames]\n        if (el) el.classList.add(...classNames)\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n                if (attrib.name === 'class') thisOut.classes = Array.from(node.classList)\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    /** Remove All, 1 or more class names from an element\n     * @param {undefined|null|\"\"|string|string[]} classNames Single or array of classnames. If undefined, \"\" or null, remove all classes\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    removeClass(classNames, el) {\n        if (!classNames) {\n            el.removeAttribute('class')\n            return\n        }\n        if (!Array.isArray(classNames)) classNames = [classNames]\n        if (el) el.classList.remove(...classNames)\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += `<div>${msg.payload}</div>`\n        if (ui.content) content += `<div>${ui.content}</div>`\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        console.log(this)\n        this._uiManager(msg)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName) {\n                if (propName === 'classes') propName = 'class'\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    const p = {}\n                    // Nightmare of different object types in a DOM Element!\n                    const cType = prop.constructor.name.toLowerCase()\n                    if (cType === 'namednodemap') {\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                    } else if (!cType.includes('map')) { // Ordinary properties (not a mapped type)\n                        p[propName] = prop\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                    }\n                    if (p.class) p.classes = Array.from(node.classList)\n                    out.push(p)\n                }\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    /** External alias for _uiComposeComponent\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    //#endregion ---- -------- ----\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n", "/* This is the Front-End JavaScript for uibuilder  in HTML Module form\n  It provides a number of global objects that can be used in your own javascript.\n  see the docs folder `./docs/uibuilder.module.md` for details of how to use this fully.\n\n  Please use the default index.js file for your own code and leave this as-is.\n  See Uib._meta for client version string\n\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n//#region --- Type Defs --- //\n/**\n * A string containing HTML markup\n * @typedef {string} html\n */\n//#endregion --- Type Defs --- //\n\n//#region --- We need the Socket.IO & ui libraries & the uib-var component  --- //\n// @ts-ignore - Note: Only works when using esbuild to bundle\nimport Ui from './ui'\nimport UibVar from '../components/uib-var'\nimport io from 'socket.io-client'\n\n// TODO - Maybe - check if already loaded as window['io']?\n// TODO - Maybe - Should this be moved to inside the class - would know the httpRoot then so less need to guess?\n// TODO           Or, could pull the cookie processing out of the class\n// const ioLocns = [ // Likely locations of the Socket.IO client library\n//     // Where it should normally be\n//     '../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and haven't changed httpNodeRoot\n//     '/uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and have changed httpNodeRoot\n//     '../../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Direct from the Internet - last ditch attempt\n//     'https://cdn.jsdelivr.net/npm/socket.io-client/+esm',\n// ]\n\n// let io\n// for (const locn of ioLocns) {\n//     try {\n//         ({ io } = await import(locn))\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library found at '${locn}'`)()\n//     } catch (e) {\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library not found at '${locn}'`)()\n//     }\n//     if (io) break\n// }\n// if (!io) log('error', 'uibuilder.module.js', 'Socket.IO client failed to load')()\n//#endregion -------- -------- -------- //\n\nconst version = '6.8.0-src'\n\n// TODO Add option to allow log events to be sent back to Node-RED as uib ctrl msgs\n//#region --- Module-level utility functions --- //\n\n// @ts-ignore Detect whether the loaded library is minified or not\nconst isMinified = !(/param/).test(function (param) { }) // eslint-disable-line no-unused-vars\n\n//#region --- print/console - debugging output functions --- //\n\n/** Default log level - Error & Warn */\nlet logLevel = isMinified ? 0 : 1  // When using minified lib, assume production and only log errors otherwise also log warn\n// function changeLogLevel(level) {\n//     logLevel = level\n//     console.trace = logLevel < 4 ? function(){} : console.trace\n//     console.debug = logLevel < 2 ? function(){} : console.debug\n//     if ( logLevel < 1 ) {\n//         console.log = console.group = console.groupEnd =  function(){}\n//     }\n// }\n\n// Experimental\nconst LOG_STYLES = {\n    // 0\n    error: {\n        css: 'background: red; color: black;',\n        txtCss: 'color: red; ',\n        pre: '\u26D4 ',\n        console: 'error',  // or trace\n    },\n    // 1\n    warn: {\n        css: 'background: darkorange; color: black;',\n        txtCss: 'color: darkorange; ',\n        pre: '\u26A0 ',\n        console: 'warn',\n    },\n    // 2\n    info: {\n        css: 'background: aqua; color: black;',\n        txtCss: 'color: aqua;',\n        pre: '\u2757 ',\n        console: 'info',\n    },\n    // 3\n    log: {\n        css: 'background: grey; color: yellow;',\n        txtCss: 'color: grey;',\n        pre: '',\n        console: 'log',\n    },\n    // 4\n    debug: {\n        css: 'background: chartreuse; color: black;',\n        txtCss: 'color: chartreuse;',\n        pre: '',\n        console: 'debug',\n    },\n    // 5\n    trace: {\n        css: 'background: indigo; color: yellow;',\n        txtCss: 'color: hotpink;',\n        pre: '',\n        console: 'log',\n    },\n\n    names: ['error', 'warn', 'info', 'log', 'debug', 'trace'],\n    reset: 'color: inherit;',\n    head: 'font-weight:bold; font-style:italic;',\n    level: 'font-weight:bold; border-radius: 3px; padding: 2px 5px; display:inline-block;',\n}\n/** Custom logging. e.g. log(2, 'here:there', 'jiminy', {fred:'jim'})()\n * @returns {Function} Log function @example log(2, 'here:there', 'jiminy', {fred:'jim'})()\n */\nfunction log() {\n    // Get the args\n    const args = Array.prototype.slice.call(arguments)\n\n    // 1st arg is the log level/type\n    let level = args.shift()\n    let strLevel\n    switch (level) {\n        case 'trace':\n        case 5: {\n            if (logLevel < 5) break\n            level = 5 // make sure level is numeric\n            strLevel = 'trace'\n            break\n        }\n\n        case 'debug':\n        case 4: {\n            if (logLevel < 4) break\n            level = 4\n            strLevel = 'debug'\n            break\n        }\n\n        case 'log':\n        case 3: {\n            if (logLevel < 3) break\n            level = 3\n            strLevel = 'log'\n            break\n        }\n\n        case 'info':\n        case '':\n        case 2: {\n            if (logLevel < 2) break\n            level = 2\n            strLevel = 'info'\n            break\n        }\n\n        case 'warn':\n        case 1: {\n            if (logLevel < 1) break\n            level = 1\n            strLevel = 'warn'\n            break\n        }\n\n        case 'error':\n        case 'err':\n        case 0: {\n            if (logLevel < 0) break\n            level = 0\n            strLevel = 'error'\n            break\n        }\n\n        default: {\n            level = -1\n            break\n        }\n\n    }\n\n    // If set to something unknown, no log output\n    if (strLevel === undefined) return function () { }\n\n    // 2nd arg is a heading that will be colour highlighted\n    const head = args.shift()\n\n    // Bind back to console.log (could use console[strLevel] but some levels ignore some formatting, use console.xxx directly or dedicated fn)\n    return Function.prototype.bind.call(\n        console[LOG_STYLES[strLevel].console],\n        console,\n        `%c${LOG_STYLES[strLevel].pre}${strLevel}%c [${head}]`, `${LOG_STYLES.level} ${LOG_STYLES[strLevel].css}`, `${LOG_STYLES.head} ${LOG_STYLES[strLevel].txtCss}`,\n        ...args\n    )\n}\n//#endregion\n\n/** A hack to dynamically load a remote module and wait until it is loaded\n * @param {string} url The URL of the module to load\n * @returns {object|null} Either the result object or null (if the load fails)\n */\n// function loadModule(url) { // eslint-disable-line no-unused-vars\n//     let done\n\n//     import(url)\n//         .then(res => {\n//             log('debug', '>> then >>', res)()\n//             done = res\n//         })\n//         .catch(err => {\n//             console.error(`[uibuilder:loadModule] Could not load module ${url}`, err)\n//             done = null\n//         })\n\n//     //  eslint-disable-next-line no-empty\n//     while (!done) { } // eslint-disable-line no-unmodified-loop-condition\n\n//     return done\n// }\n\n/** Makes a null or non-object into an object\n * If not null, moves \"thing\" to {payload:thing}\n *\n * @param {*} thing Thing to check\n * @param {string} [property='payload'] property that \"thing\" is moved to if not null and not an object\n * @returns {!object} _\n */\nfunction makeMeAnObject(thing, property) {\n    if (!property) property = 'payload'\n    if (typeof property !== 'string') {\n        log('warn', 'uibuilderfe:makeMeAnObject', `WARNING: property parameter must be a string and not: ${typeof property}`)()\n        property = 'payload'\n    }\n    let out = {}\n    if ( thing !== null && thing.constructor.name === 'Object' ) {\n        out = thing\n    } else if (thing !== null) {\n        out[property] = thing\n    }\n    return out\n} // --- End of make me an object --- //\n\n/** Joins all arguments as a URL string\n * see http://stackoverflow.com/a/28592528/3016654\n * since v1.0.10, fixed potential double // issue\n * arguments {string} URL fragments\n * @returns {string} _\n */\nfunction urlJoin() {\n    const paths = Array.prototype.slice.call(arguments)\n    const url = '/' + paths.map(function (e) {\n        return e.replace(/^\\/|\\/$/g, '')\n    })\n        .filter(function (e) {\n            return e\n        })\n        .join('/')\n    return url.replace('//', '/')\n} // ---- End of urlJoin ---- //\n\n/** Convert JSON to Syntax Highlighted HTML\n * @param {object} json A JSON/JavaScript Object\n * @returns {html} Object reformatted as highlighted HTML\n */\nfunction syntaxHighlight(json) {\n    if (json === undefined) {\n        json = '<span class=\"undefined\">undefined</span>'\n    } else {\n        try {\n            json = JSON.stringify(json, undefined, 4)\n            // json = json.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;') // eslint-disable-line newline-per-chained-call\n            json = json.replace(/(\"(\\\\u[a-zA-Z0-9]{4}|\\\\[^u]|[^\\\\\"])*\"(\\s*:)?|\\b(true|false|null)\\b|-?\\d+(?:\\.\\d*)?(?:[eE][+-]?\\d+)?)/g, function (match) { // eslint-disable-line prefer-named-capture-group\n                let cls = 'number'\n                if ((/^\"/).test(match)) {\n                    if ((/:$/).test(match)) {\n                        cls = 'key'\n                    } else {\n                        cls = 'string'\n                    }\n                } else if ((/true|false/).test(match)) {\n                    cls = 'boolean'\n                } else if ((/null/).test(match)) {\n                    cls = 'null'\n                }\n                return `<span class=\"${cls}\">${match}</span>`\n            })\n        } catch (e) {\n            json = `Syntax Highlight ERROR: ${e.message}`\n        }\n    }\n    return json\n}\n\n/** msg._ui handling functions */\nconst _ui = new Ui(window, log, syntaxHighlight)\n\n//#endregion --- Module-level utility functions --- //\n\n/** Define and export the Uib class - note that an instance of the class is also exported in the wrap-up\n * @typicalname uibuilder\n */\nexport const Uib = class Uib {\n\n    //#region --- Static variables ---\n    static _meta = {\n        version: version,\n        type: 'module',\n        displayName: 'uibuilder',\n    }\n    //#endregion ---- ---- ---- ----\n\n    //#region private class vars\n\n    // How many times has the loaded instance connected to Socket.IO (detect if not a new load?)\n    connectedNum = 0\n    // event listener callbacks by property name\n    // #events = {}\n    // Socket.IO channel names\n    _ioChannels = { control: 'uiBuilderControl', client: 'uiBuilderClient', server: 'uiBuilder' }\n    /** setInterval holder for pings @type {function|undefined} */\n    #pingInterval\n    // onChange event callbacks\n    #propChangeCallbacks = {}\n    // onTopic event callbacks\n    #msgRecvdByTopicCallbacks = {}\n    // Is Vue available?\n    isVue = false\n    // What version? Set in startup if Vue is loaded. Won't always work\n    vueVersion = undefined\n    /** setInterval id holder for Socket.IO checkConnect\n     * @type {number|null}\n     */\n    #timerid = null\n    // Holds the reference ID for the internal msg change event handler so that it can be cancelled\n    #MsgHandler\n    // Placeholder for io.socket - can't make a # var until # fns allowed in all browsers\n    _socket\n    // Placeholder for an observer that watches the whole DOM for changes - can't make a # var until # fns allowed in all browsers\n    _htmlObserver\n    // Has showMsg been turned on?\n    #isShowMsg = false\n    // Has showStatus been turned on?\n    #isShowStatus = false\n    // If true, URL hash changes send msg back to node-red. Controlled by watchUrlHash()\n    #sendUrlHash = false\n    // Externally accessible command functions (NB: Case must match) - remember to update _uibCommand for new commands\n    #extCommands = [\n        'elementExists', 'get', 'getManagedVarList', 'getWatchedVars', 'htmlSend', 'include',\n        'navigate', 'scrollTo', 'set', 'showMsg', 'showStatus', 'uiGet', 'uiWatch', 'watchUrlHash',\n    ]\n\n    /** @type {{[key: string]: string}} Managed uibuilder variables */\n    #managedVars = {}\n\n    // What status variables to show via showStatus()\n    #showStatus = {\n        online: { 'var': 'online', 'label': 'Online?', 'description': 'Is the browser online?', },\n        ioConnected: { 'var': 'ioConnected', 'label': 'Socket.IO connected?', 'description': 'Is Socket.IO connected?', },\n        connectedNum: { 'var': 'connectedNum', 'label': '# reconnections', 'description': 'How many times has Socket.IO had to reconnect since last page load?', },\n\n        clientId: { 'var': 'clientId', 'label': 'Client ID', 'description': 'Static client unique id set in Node-RED. Only changes when browser is restarted.', },\n        tabId: { 'var': 'tabId', 'label': 'Browser tab ID', 'description': 'Static unique id for the browser\\'s current tab', },\n        cookies: { 'var': 'cookies', 'label': 'Cookies', 'description': 'Cookies set in Node-RED', },\n        httpNodeRoot: { 'var': 'httpNodeRoot', 'label': 'httpNodeRoot', 'description': 'From Node-RED\\' settings.js, affects URL\\'s. May be wrong for pages in sub-folders', },\n        pageName: { 'var': 'pageName', 'label': 'Page name', 'description': 'Actual name of this page', },\n\n        ioNamespace: { 'var': 'ioNamespace', 'label': 'SIO namespace', 'description': 'Socket.IO namespace - unique to each uibuilder node instance', },\n        // ioPath: { 'var': 'ioPath', 'label': 'SIO path', 'description': '', }, // no longer needed in the modern client\n        socketError: { 'var': 'socketError', 'label': 'Socket error', 'description': 'If the Socket.IO connection has failed, says why', },\n\n        msgsSent: { 'var': 'msgsSent', 'label': '# msgs sent', 'description': 'How many standard messages have been sent to Node-RED?', },\n        msgsReceived: { 'var': 'msgsReceived', 'label': '# msgs received', 'description': 'How many standard messages have been received from Node-RED?', },\n        msgsSentCtrl: { 'var': 'msgsSentCtrl', 'label': '# control msgs sent', 'description': 'How many control messages have been sent to Node-RED?', },\n        msgsCtrlReceived: { 'var': 'msgsCtrlReceived', 'label': '# control msgs received', 'description': 'How many control messages have been received from Node-RED?', },\n        originator: { 'var': 'originator', 'label': 'Node Originator', 'description': 'If the last msg from Node-RED was from a `uib-sender` node, this will be its node id so that messasges can be returned to it', },\n        topic: { 'var': 'topic', 'label': 'Default topic', 'description': 'Optional default topic to be included in outgoing standard messages', },\n\n        started: { 'var': 'started', 'label': 'Has uibuilder client started?', 'description': 'Whether `uibuilder.start()` ran successfully. This should self-run and should not need to be run manually', },\n        version: { 'var': 'version', 'label': 'uibuilder client version', 'description': 'The version of the loaded uibuilder client library', },\n        serverTimeOffset: { 'var': 'serverTimeOffset', 'label': 'Server time offset (Hrs)', 'description': 'The number of hours difference between the Node-red server and the client', },\n    }\n\n    // Track ui observers (see uiWatch)\n    #uiObservers = {}\n\n    //#endregion\n\n    //#region public class vars\n\n    // TODO Move to proper getters\n    //#region ---- Externally read-only (via .get method) ---- //\n    // version - moved to _meta\n    /** Client ID set by uibuilder on connect */\n    clientId = ''\n    /** The collection of cookies provided by uibuilder */\n    cookies = {}\n    /** Copy of last control msg object received from sever */\n    ctrlMsg = {}\n    /** Is Socket.IO client connected to the server? */\n    ioConnected = false\n    // Is the browser tab containing this page visible or not?\n    isVisible = false\n    // Remember the last page (re)load/navigation type: navigate, reload, back_forward, prerender\n    lastNavType = ''\n    /** Last std msg received from Node-RED */\n    msg = {}\n    /** number of messages sent to server since page load */\n    msgsSent = 0\n    /** number of messages received from server since page load */\n    msgsReceived = 0\n    /** number of control messages sent to server since page load */\n    msgsSentCtrl = 0\n    /** number of control messages received from server since page load */\n    msgsCtrlReceived = 0\n    /** Is the client online or offline? */\n    online = navigator.onLine\n    /** last control msg object sent via uibuilder.send() @since v2.0.0-dev3 */\n    sentCtrlMsg = {}\n    /** last std msg object sent via uibuilder.send() */\n    sentMsg = {}\n    /** placeholder to track time offset from server, see fn socket.on(ioChannels.server ...) */\n    serverTimeOffset = null\n    /** placeholder for a socket error message */\n    socketError = null\n    // tab identifier from session storage\n    tabId = ''\n    // Actual name of current page (set in constructor)\n    pageName = null\n    // Is the DOMPurify library loaded? Updated in start()\n    purify = false\n    // Is the Markdown-IT library loaded? Updated in start()\n    markdown = false\n    // Current URL hash. Initial set is done from start->watchHashChanges via a set to make it watched\n    urlHash = location.hash\n    //#endregion ---- ---- ---- ---- //\n\n    // TODO Move to proper getters/setters\n    //#region ---- Externally Writable (via .set method, read via .get method) ---- //\n    /** Default originator node id - empty string by default\n     * @type {string}\n     */\n    originator = ''\n    /** Default topic - used by send if set and no topic provided\n     * @type {(string|undefined)}\n     */\n    topic = undefined\n    //#endregion ---- ---- ---- ---- //\n\n    //#region ---- These are unlikely to be needed externally: ----\n    autoSendReady = true\n    httpNodeRoot = '' // Node-RED setting (via cookie)\n    ioNamespace = ''\n    ioPath = ''\n    retryFactor = 1.5       // starting delay factor for subsequent reconnect attempts\n    retryMs = 2000          // starting retry ms period for manual socket reconnections workaround\n    storePrefix = 'uib_'    // Prefix for all uib-related localStorage\n    started = false\n    // NOTE: These can only change when a client (re)connects\n    socketOptions = {\n        path: this.ioPath,\n        transports: ['polling', 'websocket'],\n        // Using callback so that they are updated automatically on (re)connect\n        // Only put things in here that will be valid for a websocket connected session\n        auth: (cb) => {\n            cb({ // eslint-disable-line n/no-callback-literal\n                clientVersion: version,\n                clientId: this.clientId,\n                pathName: window.location.pathname,\n                urlParams: Object.fromEntries(new URLSearchParams(location.search)),\n                pageName: this.pageName,\n                tabId: this.tabId,\n                lastNavType: this.lastNavType,\n                connectedNum: ++this.connectedNum,\n                // Used to calculate the diff between the server and client connection timestamps - reported if >1 minute\n                browserConnectTimestamp: (new Date()).toISOString(),\n            })\n        },\n        transportOptions: {\n            // Can only set headers when polling\n            polling: {\n                extraHeaders: {\n                    'x-clientid': `${Uib._meta.displayName}; ${Uib._meta.type}; ${Uib._meta.version}; ${this.clientId}`,\n                }\n            },\n        },\n    }\n    //#endregion -- not external --\n\n    //#endregion --- End of variables ---\n\n    //#region ------- Getters and Setters ------- //\n\n    // Change logging level dynamically (affects both console. and print.)\n    set logLevel(level) { logLevel = level; console.log('%c\u2757 info%c [logLevel]', `${LOG_STYLES.level} ${LOG_STYLES.info.css}`, `${LOG_STYLES.head} ${LOG_STYLES.info.txtCss}`, `Set to ${level} (${LOG_STYLES.names[level]})`) /* changeLogLevel(level)*/ }\n    get logLevel() { return logLevel }\n\n    get meta() { return Uib._meta }\n\n    /** Function to set uibuilder properties to a new value - works on any property except _* or #*\n     * Also triggers any event listeners.\n     * Example: this.set('msg', {topic:'uibuilder', payload:42});\n     * @param {string} prop Any uibuilder property who's name does not start with a _ or #\n     * @param {*} val The set value of the property or a string declaring that a protected property cannot be changed\n     * @param {boolean} [store] If true, the variable is also saved to the browser localStorage if possible\n     * @param {boolean} [autoload] If true & store is true, on load, uib will try to restore the value from the store automatically\n     * @returns {*} Input value\n     */\n    set(prop, val, store = false, autoload = false) {\n        // Check for excluded properties - we don't want people to set these\n        // if (this.#excludedSet.indexOf(prop) !== -1) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:set', `Cannot use set() on protected property \"${prop}\"`)()\n            return `Cannot use set() on protected property \"${prop}\"`\n        }\n\n        // We must add the var to the uibuilder object\n        this[prop] = val\n\n        // Keep track of all managed variables\n        this.#managedVars[prop] = prop\n\n        // If requested, save to store\n        if (store === true) this.setStore(prop, val, autoload)\n\n        log('trace', 'Uib:set', `prop set - prop: ${prop}, val: `, val, ` store: ${store}, autoload: ${autoload}`)()\n\n        // Trigger this prop's event callbacks (listeners which are set by this.onChange)\n        // this.emit(prop, val)\n\n        // trigger an event on the prop name, pass both the name and value to the event details\n        this._dispatchCustomEvent('uibuilder:propertyChanged', { 'prop': prop, 'value': val, 'store': store, 'autoload': autoload })\n\n        return val\n    }\n\n    /** Function to get the value of a uibuilder property\n     * Example: uibuilder.get('msg')\n     * @param {string} prop The name of the property to get as long as it does not start with a _ or #\n     * @returns {*|undefined} The current value of the property\n     */\n    get(prop) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:get', `Cannot use get() on protected property \"${prop}\"`)()\n            return\n        }\n        if (prop === 'version') return Uib._meta.version\n        if (prop === 'msgsCtrl') return this.msgsCtrlReceived\n        if (prop === 'reconnections') return this.connectedNum\n        if (this[prop] === undefined) {\n            log('warn', 'Uib:get', `get() - property \"${prop}\" is undefined`)()\n        }\n        return this[prop]\n    }\n\n    /** Write to localStorage if possible. console error output if can't write\n     * Also uses this.storePrefix\n     * @example\n     *   uibuilder.setStore('fred', 42)\n     *   console.log(uibuilder.getStore('fred'))\n     * @param {string} id localStorage var name to be used (prefixed with 'uib_')\n     * @param {*} value value to write to localstore\n     * @param {boolean} [autoload] If true, on load, uib will try to restore the value from the store\n     * @returns {boolean} True if succeeded else false\n     */\n    setStore(id, value, autoload = false) {\n        let autoVars = {}\n        if (autoload === true) {\n            try {\n                autoVars = this.getStore('_uibAutoloadVars') || {}\n            } catch (e) {}\n        }\n        if (typeof value === 'object') {\n            try {\n                value = JSON.stringify(value)\n            } catch (e) {\n                log('error', 'Uib:setStore', 'Cannot stringify object, not storing. ', e)()\n                return false\n            }\n        }\n        try {\n            localStorage.setItem(this.storePrefix + id, value)\n            if (autoload) {\n                autoVars[id] = id\n                try {\n                    localStorage.setItem(this.storePrefix + '_uibAutoloadVars', JSON.stringify(autoVars))\n                } catch (e) {\n                    log('error', 'Uib:setStore', 'Cannot save autoload list. ', e)()\n                }\n            }\n            this._dispatchCustomEvent('uibuilder:propertyStored', { 'prop': id, 'value': value, 'autoload': autoload })\n            return true\n        } catch (e) {\n            log('error', 'Uib:setStore', 'Cannot write to localStorage. ', e)()\n            return false\n        }\n    } // --- end of setStore --- //\n\n    /** Attempt to get and re-hydrate a key value from localStorage\n     * Note that all uib storage is automatically prefixed using this.storePrefix\n     * @param {*} id The key of the value to attempt to retrieve\n     * @returns {*|null|undefined} The re-hydrated value of the key or null if key not found, undefined on error\n     */\n    getStore(id) {\n        try {\n            // @ts-ignore\n            return JSON.parse(localStorage.getItem(this.storePrefix + id))\n        } catch (e) { }\n        try {\n            return localStorage.getItem(this.storePrefix + id)\n        } catch (e) {\n            return undefined\n        }\n    }\n\n    /** Remove a given id from the uib keys in localStorage\n     * @param {*} id The key to remove\n     */\n    removeStore(id) {\n        try {\n            localStorage.removeItem(this.storePrefix + id)\n        } catch (e) { }\n    }\n\n    /** Returns a list of uibuilder properties (variables) that can be watched with onChange\n     * @returns {{[key: string]: string}} List of uibuilder managed variables\n     */\n    getManagedVarList() {\n        return this.#managedVars\n    }\n\n    getWatchedVars() {\n        return Object.keys(this.#propChangeCallbacks)\n    }\n\n    //#endregion ------- -------- ------- //\n\n    //#region ------- Our own event handling system ---------- //\n\n    // TODO Add option to send event details back to Node-RED as uib ctrl msg\n    /** Standard fn to create a custom event with details & dispatch it\n     * @param {string} title The event name\n     * @param {*} details Any details to pass to event output\n     */\n    _dispatchCustomEvent(title, details) {\n        const event = new CustomEvent(title, { detail: details })\n        document.dispatchEvent(event)\n    }\n\n    // See the this.#propChangeCallbacks & msgRecvdByTopicCallbacks private vars\n\n    /** Register on-change event listeners for uibuilder tracked properties\n     * Make it possible to register a function that will be run when the property changes.\n     * Note that you can create listeners for non-existant properties\n     * @example: uibuilder.onChange('msg', (msg) => { console.log('uibuilder.msg changed! It is now: ', msg) })\n     *\n     * @param {string} prop The property of uibuilder that we want to monitor\n     * @param {Function} callback The function that will run when the property changes, parameter is the new value of the property after change\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelChange if you need to remove a listener\n     */\n    onChange(prop, callback) {\n        // Note: Property does not have to exist yet\n\n        // console.debug(`[Uib:onchange] pushing new callback (event listener) for property: ${prop}`)\n\n        // Create a new array or add to the array of callback functions for the property in the events object\n        // if (this.#events[prop]) {\n        //     this.#events[prop].push(callback)\n        // } else {\n        //     this.#events[prop] = [callback]\n        // }\n\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#propChangeCallbacks[prop]) this.#propChangeCallbacks[prop] = { _nextRef: 1 }\n        else this.#propChangeCallbacks[prop]._nextRef++\n\n        const nextCbRef = this.#propChangeCallbacks[prop]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const propChangeCallback = this.#propChangeCallbacks[prop][nextCbRef] = function propChangeCallback(e) {\n            // If the prop name matches the 1st arg in the onChange fn:\n            if (prop === e.detail.prop) {\n                const value = e.detail.value\n                // console.warn('[Uib:onChange:evt] uibuilder:propertyChanged. ', e.detail)\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(value, value)\n            }\n        }\n\n        document.addEventListener('uibuilder:propertyChanged', propChangeCallback)\n\n        return nextCbRef\n    } // ---- End of onChange() ---- //\n\n    cancelChange(prop, cbRef) {\n        document.removeEventListener('uibuilder:propertyChanged', this.#propChangeCallbacks[prop][cbRef])\n        delete this.#propChangeCallbacks[prop][cbRef]\n        // this.#propChangeCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Register a change callback for a specific msg.topic\n     * Similar to onChange but more convenient if needing to differentiate by msg.topic.\n     * @example: let otRef = uibuilder.onTopic('mytopic', function(){ console.log('Received a msg with msg.topic=`mytopic`. msg: ', this) })\n     * To cancel a change listener: uibuilder.cancelTopic('mytopic', otRef)\n     *\n     * @param {string} topic The msg.topic we want to listen for\n     * @param {Function} callback The function that will run when an appropriate msg is received. `this` inside the callback as well as the cb's single argument is the received msg.\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelTopic if you need to remove a listener\n     */\n    onTopic(topic, callback) {\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#msgRecvdByTopicCallbacks[topic]) this.#msgRecvdByTopicCallbacks[topic] = { _nextRef: 1 }\n        else this.#msgRecvdByTopicCallbacks[topic]._nextRef++\n\n        const nextCbRef = this.#msgRecvdByTopicCallbacks[topic]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const msgRecvdEvtCallback = this.#msgRecvdByTopicCallbacks[topic][nextCbRef] = function msgRecvdEvtCallback(e) {\n            const msg = e.detail\n            // console.log('[Uib:onTopic:evt] uibuilder:stdMsgReceived where topic matches. ', e.detail)\n            if (msg.topic === topic) {\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(msg, msg)\n            }\n        }\n\n        document.addEventListener('uibuilder:stdMsgReceived', msgRecvdEvtCallback)\n\n        return nextCbRef\n    }\n\n    cancelTopic(topic, cbRef) {\n        document.removeEventListener('uibuilder:stdMsgReceived', this.#msgRecvdByTopicCallbacks[topic][cbRef])\n        delete this.#msgRecvdByTopicCallbacks[topic][cbRef]\n        // this.#msgRecvdCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Trigger event listener for a given property\n     * Called when uibuilder.set is used\n     *\n     * @param {*} prop The property for which to run the callback functions\n     * arguments: Additional arguments contain the value to pass to the event callback (e.g. newValue)\n     */\n    // emit(prop) {\n    //     var evt = this.#events[prop]\n    //     if (!evt) {\n    //         return\n    //     }\n    //     var args = Array.prototype.slice.call(arguments, 1)\n    //     for (var i = 0; i < evt.length; i++) {\n    //         evt[i].apply(this, args)\n    //     }\n    //     log('trace', 'Uib:emit', `${evt.length} listeners run for prop ${prop} `)()\n    // }\n\n    /** Forcibly removes all event listeners from the events array\n     * Use if you need to re-initialise the environment\n     */\n    // clearEventListeners() {\n    //     this.#events = []\n    // } // ---- End of clearEventListeners() ---- //\n\n    /** Clear a single property event listeners\n     * @param {string} prop The property of uibuilder for which we want to clear the event listener\n     */\n    // clearListener(prop) {\n    //     if (this.#events[prop]) delete this.#events[prop]\n    // }\n\n    //#endregion ---------- End of event handling system ---------- //\n\n    //#region ------- General Utility Functions -------- //\n\n    /** Check supplied msg from server for a timestamp - if received, work out & store difference to browser time\n     * @param {object} receivedMsg A message object recieved from Node-RED\n     * @returns {void} Updates self.serverTimeOffset if different to previous value\n     */\n    _checkTimestamp(receivedMsg) {\n        if (Object.prototype.hasOwnProperty.call(receivedMsg, 'serverTimestamp')) {\n            const serverTimestamp = new Date(receivedMsg.serverTimestamp)\n            // @ts-ignore\n            const offset = Math.round(((new Date()) - serverTimestamp) / 3600000) // in ms /3.6m to get hours\n            if (offset !== this.serverTimeOffset) {\n                log('trace', `Uib:checkTimestamp:${this._ioChannels.server} (server)`, `Offset changed to: ${offset} from: ${this.serverTimeOffset}`)()\n                this.set('serverTimeOffset', offset)\n            }\n        }\n    }\n\n    /** Set the default originator. Set to '' to ignore. Used with uib-sender.\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    setOriginator(originator = '') {\n        this.set('originator', originator)\n    } // ---- End of setOriginator ---- //\n\n    /** HTTP Ping/Keep-alive - makes a call back to uibuilder's ExpressJS server and receives a 204 response\n     * Can be used to keep sessions alive.\n     * @example\n     *   uibuilder.setPing(2000) // repeat every 2 sec. Re-issue with ping(0) to turn off repeat.\n     *   uibuilder.onChange('ping', function(data) {\n     *      console.log('pinger', data)\n     *   })\n     * @param {number} ms Repeat interval in ms\n     */\n    setPing(ms = 0) {\n        const oReq = new XMLHttpRequest()\n        oReq.addEventListener('load', () => {\n            const headers = (oReq.getAllResponseHeaders()).split('\\r\\n')\n            const elapsedTime = Number(new Date()) - Number((oReq.responseURL.split('='))[1])\n            this.set('ping', {\n                success: !!((oReq.status === 201) || (oReq.status === 204)), // true if one of the listed codes else false\n                status: oReq.status,\n                headers: headers,\n                url: oReq.responseURL,\n                elapsedTime: elapsedTime,\n            })\n        })\n\n        if (this.#pingInterval) {\n            clearInterval(this.#pingInterval)\n            this.#pingInterval = undefined\n        }\n\n        oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n        oReq.send()\n\n        if (ms > 0) {\n            this.#pingInterval = setInterval(() => {\n                oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n                oReq.send()\n            }, ms)\n        }\n    } // ---- End of ping ---- //\n\n    log() {\n        log(...arguments)()\n    }\n\n    /** Convert JSON to Syntax Highlighted HTML\n     * @param {object} json A JSON/JavaScript Object\n     * @returns {html} Object reformatted as highlighted HTML\n     */\n    syntaxHighlight(json) {\n        return syntaxHighlight(json)\n    } // --- End of syntaxHighlight --- //\n\n    /** Copies a uibuilder variable to the browser clipboard\n     * @param {string} varToCopy The name of the uibuilder variable to copy to the clipboard\n     */\n    copyToClipboard(varToCopy) {\n        let data = ''\n        try {\n            console.log(this.get(varToCopy), JSON.stringify(this.get(varToCopy)))\n            data = JSON.stringify(this.get(varToCopy))\n        } catch (e) {\n            log('error', 'copyToClipboard', `Could not copy \"${varToCopy}\" to clipboard.`, e.message)()\n        }\n        navigator.clipboard.writeText(data)\n    } // --- End of copyToClipboard --- //\n\n    /** DEPRECATED FOR NOW - wasn't working properly.\n     * Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.\n     * Requires IntersectionObserver (available to all mainstream browsers from early 2019)\n     * Automatically sends a msg back to Node-RED.\n     * Requires the element to already exist.\n     * @returns {false}\n     */\n    elementIsVisible() {\n        const info = 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'\n        log('error', 'uib:elementIsVisible', info)()\n        this.send({payload: 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'})\n        return false\n    } // --- End of elementIsVisible --- //\n\n    /** Does the chosen CSS Selector currently exist?\n     * Automatically sends a msg back to Node-RED unless turned off.\n     * @param {string} cssSelector Required. CSS Selector to examine for visibility\n     * @param {boolean} [msg] Optional, default=true. If true also sends a message back to Node-RED\n     * @returns {boolean} True if the element exists\n     */\n    elementExists(cssSelector, msg = true) {\n        const el = document.querySelector(cssSelector)\n\n        let exists = false\n        if (el !== null) exists = true\n\n        if (msg === true) {\n            this.send({\n                payload: exists,\n                info: `Element \"${cssSelector}\" ${exists ? 'exists' : 'does not exist'}`\n            })\n        }\n\n        return exists\n    } // --- End of elementExists --- //\n\n    /** Only keep the URL Hash & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return '#' + url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Set up an event listener to watch for hash changes\n     * and set the watchable urlHash variable\n     */\n    _watchHashChanges() {\n        this.set('urlHash', location.hash)\n        window.addEventListener('hashchange', (event) => {\n            this.set('urlHash', location.hash)\n            if (this.#sendUrlHash === true) {\n                this.send({ topic: 'hashChange', payload: location.hash, newHash: this.keepHashFromUrl(event.newURL), oldHash: this.keepHashFromUrl(event.oldURL) })\n            }\n        })\n    }\n\n    /** Returns true/false or a default value for truthy/falsy and other values\n     * @param {string|number|boolean|*} val The value to test\n     * @param {any} deflt Default value to use if the value is not truthy/falsy\n     * @returns {boolean|any} The truth! Or the default\n     */\n    truthy(val, deflt) {\n        let ret\n        if (['on', 'On', 'ON', 'true', 'True', 'TRUE', '1', true, 1].includes(val)) ret = true\n        else if (['off', 'Off', 'OFF', 'false', 'False', 'FALSE', '0', false, 0].includes(val)) ret = false\n        else ret = deflt\n        return ret\n    }\n\n    /** Turn on/off/toggle sending URL hash changes back to Node-RED\n     * @param {string|number|boolean|undefined} [toggle] Optional on/off/etc\n     * @returns {boolean} True if we will send a msg to Node-RED on a hash change\n     */\n    watchUrlHash(toggle) {\n        this.#sendUrlHash = this.truthy(toggle, this.#sendUrlHash !== true)\n        return this.#sendUrlHash\n    }\n\n    /** Navigate to a new page or a new route (hash)\n     * @param {string} url URL to navigate to. Can be absolute or relative (to current page) or just a hash for a route change\n     * @returns {Location} The new window.location string\n     */\n    navigate(url) {\n        if (url) window.location.href = url\n        return window.location\n    }\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- UI handlers --------- //\n\n    //#region -- Direct to _ui --\n    // ! NOTE: Direct assignments change the target `this` to here. Use with caution\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {HTMLElement|null} Selected HTML element or null\n     */\n    $ = _ui.$\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {string} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {HTMLElement[]} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$ = _ui.$$\n\n    /** Reference to the full ui library */\n    $ui = _ui\n\n    /** Add 1 or several class names to an element\n     * @param {string|string[]} classNames Single or array of classnames\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    addClass = _ui.addClass\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        return _ui.convertMarkdown\n    }\n\n    /** ASYNC: Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     */\n    async include(url, uiOptions) {\n        await _ui.include(url, uiOptions)\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        _ui.loadScriptSrc(url)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        _ui.loadStyleSrc(url)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        _ui.loadScriptTxt(textFn)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        _ui.loadStyleTxt(textFn)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        _ui.loadui(url)\n    }\n\n    /** Remove All, 1 or more class names from an element\n     * @param {undefined|null|\"\"|string|string[]} classNames Single or array of classnames. If undefined, \"\" or null, remove all classes\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    removeClass = _ui.removeClass\n\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        _ui.replaceSlot(el, component)\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        _ui.replaceSlotMarkdown(el, component)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        return _ui.sanitiseHTML(html)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) {\n        _ui.showDialog(type, ui, msg)\n    }\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        _ui.ui(json)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        return _ui.uiGet(cssSelector, propName)\n    }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} component Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, component) {\n        _ui.uiEnhanceElement(el, component)\n    }\n\n    //#endregion -- direct to _ui --\n\n    /** * Show/hide a display card on the end of the visible HTML that will dynamically display the last incoming msg from Node-RED\n     * The card has the id `uib_last_msg`. Updates are done from a listener set up in the start function.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showMsg(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowMsg\n        this.#isShowMsg = showHide\n        let slot = 'Waiting for a message from Node-RED'\n\n        if (this.msg && Object.keys(this.msg).length > 0) {\n            slot = this.syntaxHighlight(this.msg)\n        }\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_last_msg_wrap',\n                ],\n            })\n        } else {\n            _ui._uiReplace({\n                components: [\n                    {\n                        type: 'div',\n                        id: 'uib_last_msg_wrap',\n                        parent: parent,\n                        attributes: {\n                            title: 'Last message from Node-RED',\n                        },\n                        components: [\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.copyToClipboard(\"msg\")',\n                                    class: 'compact',\n                                    style: 'right:3em;',\n                                },\n                                slot: '\uD83D\uDCCB',\n                            },\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.showMsg()',\n                                    class: 'compact',\n                                    style: 'right:.5em;',\n                                },\n                                slot: '\u26D4',\n                            },\n                            {\n                                type: 'pre',\n                                id: 'uib_last_msg',\n                                // parent: 'uib_last_msg_wrap',\n                                attributes: {\n                                    class: 'syntax-highlight',\n                                },\n                                slot: slot,\n                            },\n                        ],\n                    },\n                ],\n            })\n        }\n\n        return showHide\n    }\n\n    /** Show a browser notification if possible.\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * @example uibuilder.notify( 'My simple message to the user' )\n     * @example uibuilder.notify( {topic: 'My Title', payload: 'My simple message to the user'} )\n     * @example uibuilder.notify( {title: 'My Title', body: 'My simple message to the user'} )\n     * @example // If config.return = true, a promise is returned.\n     * // The resolved promise is only returned if the notification is clicked by the user.\n     * // Can be used to send the response back to Node-RED\n     * uibuilder.notify(notifyConfig).then( res => uibuilder.eventSend(res) )\n     * @ref https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config data or simple message string\n     * @returns {Promise<Event>|null} A promise that resolves to the click event or null\n     */\n    notify(config) {\n        if (config.return) return _ui.notification(config)\n\n        _ui.notification(config)\n            .then( res => { // eslint-disable-line promise/always-return\n                log('info', 'Uib:notification', 'Notification completed event', res)()\n                // if (config.return) return res\n            })\n            .catch( err => {\n                log('error', 'Uib:notification', 'Notification error event', err)()\n            })\n        return null\n    }\n\n    /** Scroll the page\n     * https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollIntoView\n     * @param {string} [cssSelector] Optional. If not set, scrolls to top of page.\n     * @param {{block:(string|undefined),inline:(string|undefined),behavior:(string|undefined)}} [opts] Optional. DOM scrollIntoView options\n     * @returns {boolean} True if element was found, false otherwise\n     */\n    scrollTo(cssSelector, opts) {\n        // @ts-ignore\n        if (!opts) opts = {}\n        if (!cssSelector || cssSelector === 'top'  || cssSelector === 'start') cssSelector = 'body'\n        else if (cssSelector === 'bottom' || cssSelector === 'end') {\n            cssSelector = 'body'\n            opts.block = 'end'\n        }\n        const el = this.$(cssSelector)\n        if (el) {\n            el.scrollIntoView(opts)\n            return true\n        }\n        return false\n    }\n\n    /** Show/hide a display card on the end of the visible HTML that will dynamically display the current status of the uibuilder client\n     * The card has the id `uib_status`.\n     * The display is updated by an event listener created in the class constructor.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showStatus(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowStatus\n        this.#isShowStatus = showHide\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_status',\n                ],\n            })\n            return showHide\n        }\n\n        const root = {\n            components: [\n                {\n                    type: 'div',\n                    id: 'uib_status',\n                    parent: parent,\n                    attributes: {\n                        title: 'Current status of the uibuilder client',\n                        class: 'text-smaller',\n                    },\n                    components: [\n                        {\n                            'type': 'table',\n                            'components': [\n                                {\n                                    'type': 'tbody',\n                                    'components': []\n                                }\n                            ]\n                        }\n                    ]\n                }\n            ]\n        }\n        const details = root.components[0].components[0].components[0].components\n\n        Object.values(this.#showStatus).forEach( entry => {\n            details.push({\n                'type': 'tr',\n                'attributes': {\n                    title: entry.description,\n                },\n                'components': [\n                    {\n                        'type': 'th',\n                        'slot': entry.label,\n                    },\n                    {\n                        'type': 'td',\n                        'attributes': {\n                            'data-varType': entry.var,\n                        },\n                        'slot': entry.var === 'version' ? Uib._meta.version : JSON.stringify(this[entry.var]),\n                    }\n                ],\n            })\n        })\n\n        _ui._uiReplace(root)\n\n        return showHide\n    }\n\n    /** Use the Mutation Observer browser API to watch for changes to a single element on the page.\n     * OMG! It is sooo hard to turn the data into something that successfully serialises so it can be sent back to Node-RED!\n     * NB: Each cssSelector creates a unique watcher. Sending the same selector overwrites the previous one.\n     * @param {string} cssSelector A CSS Selector that selects the element to watch for changes\n     * @param {boolean|\"toggle\"} [startStop] true=start watching the DOM, false=stop. Default='toggle'\n     * @param {boolean} [send] true=Send changes to Node-RED, false=Don't send. Default=true\n     * @param {boolean} [showLog] true=Output changes to log, false=stop. Default=true. Log level is 2 (Info)\n     * @returns {boolean} True if the watch is on, false otherwise\n     */\n    uiWatch(cssSelector, startStop = 'toggle', send = true, showLog = true) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.querySelector(cssSelector)\n        if (!targetNode) {\n            log('warn', 'uibuilder.module.js:uiWatch', `CSS Selector '${cssSelector}' not found.`)()\n            return false\n        }\n\n        if (startStop === 'toggle' || startStop === undefined || startStop === null) {\n            if (this.#uiObservers[cssSelector]) startStop = false\n            else startStop = true\n        }\n\n        // Need a ref to the Uib this\n        const that = this\n\n        if (startStop === true) {\n            // Create an observer instance\n            this.#uiObservers[cssSelector] = new MutationObserver( function( mutationList /* , observer */ ) {\n                const out = []\n\n                mutationList.forEach( mu => {\n                    // console.log({ mu })\n                    const oMu = {\n                        type: mu.type,\n                        oldValue: mu.oldValue !== null ? mu.oldValue : undefined,\n                    }\n\n                    if (mu.addedNodes.length > 0) {\n                        oMu.addedNodes = []\n                        mu.addedNodes.forEach( (an, i) => {\n                            oMu.addedNodes.push(_ui.nodeGet(mu.addedNodes[i]))\n                        })\n                    }\n\n                    if (mu.removedNodes.length > 0) {\n                        oMu.removedNodes = []\n                        mu.removedNodes.forEach( (an, i) => {\n                            oMu.removedNodes.push(_ui.nodeGet(mu.removedNodes[i]))\n                        })\n                    }\n\n                    if ( mu.type === 'attributes' ) {\n                        oMu.attributeName = mu.attributeName\n                        // @ts-ignore\n                        oMu.newValue = mu.target.attributes[mu.attributeName].value\n                    }\n\n                    out.push(oMu)\n                })\n\n                // Custom event\n                that._dispatchCustomEvent('uibuilder:domChange', out)\n                // Send a msg back to node-red\n                if (send === true) {\n                    that.send({\n                        _ui: {\n                            cssSelector: cssSelector,\n                            uiChanges: out\n                        },\n                        topic: that.topic || `DOM Changes for '${cssSelector}'`,\n                    })\n                }\n                // Log to info\n                if (showLog === true) {\n                    log('info', 'uibuilder.module.js:uiWatch', `DOM Changes for '${cssSelector}'`, { uiChanges: out }, { mutationList })()\n                }\n            } )\n\n            // Start observing the target node for configured mutations\n            this.#uiObservers[cssSelector].observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:uiWatch', `Started Watching DOM changes for '${cssSelector}'`)()\n        } else {\n            this.#uiObservers[cssSelector].disconnect()\n            delete this.#uiObservers[cssSelector]\n            log('trace', 'uibuilder.module.js:uiWatch', `Stopped Watching DOM changes for '${cssSelector}'`)()\n        }\n\n        return startStop\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- HTML cache and DOM watch --------- //\n\n    /** Clear the saved DOM from localStorage */\n    clearHtmlCache() {\n        this.removeStore('htmlCache')\n        log('trace', 'uibuilder.module.js:clearHtmlCache', 'HTML cache cleared')()\n    }\n\n    /** Restore the complete DOM (the whole web page) from browser localStorage if available */\n    restoreHtmlFromCache() {\n        // Is the html cached? If so, restore it\n        const htmlCache = this.getStore('htmlCache')\n        if (htmlCache) {\n            const targetNode = document.getElementsByTagName('html')[0]\n            // Restore the entire HTML\n            targetNode.innerHTML = htmlCache\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'Restored HTML from cache')()\n        } else {\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'No cache to restore')()\n        }\n    }\n\n    /** Save the current DOM state to browser localStorage.\n     * localStorage is persistent and so can be recovered even after a browser restart.\n     */\n    saveHtmlCache() {\n        // Save the updated entire HTML in localStorage\n        this.setStore('htmlCache', document.documentElement.innerHTML)\n    }\n\n    /** Use the Mutation Observer browser API to watch for and save changes to the HTML\n     * Once the observer is created, it will be reused.\n     * Sending true or undefined will turn on the observer, false turns it off.\n     * saveHtmlCache is called whenever anything changes in the dom. This allows\n     * users to call restoreHtmlFromCache() on page load if desired to completely reload\n     * to the last saved state.\n     * @param {boolean} startStop true=start watching the DOM, false=stop\n     */\n    watchDom(startStop) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.documentElement\n\n        // Need a ref to the Uib this\n        const that = this\n\n        // Create an observer instance\n        if (!this._htmlObserver) {\n            this._htmlObserver = new MutationObserver( function(/* mutationList, observer */) {\n                // We don't need to know the details - so kill off any outstanding mutation records\n                this.takeRecords()\n                // Save the updated entire HTML in localStorage\n                that.saveHtmlCache()\n            } )\n        }\n\n        if (startStop === true || startStop === undefined) {\n            // Start observing the target node for configured mutations\n            this._htmlObserver.observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:watchDom', 'Started Watching and saving DOM changes')()\n        } else {\n            this._htmlObserver.disconnect()\n            log('trace', 'uibuilder.module.js:watchDom', 'Stopped Watching and saving DOM changes')()\n        }\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- Message Handling (To/From Node-RED) -------- //\n\n    /** Handles original control msgs (not to be confused with \"new\" msg._uib controls)\n     * @param {*} receivedCtrlMsg The msg received on the socket.io control channel\n     */\n    _ctrlMsgFromServer(receivedCtrlMsg) {\n\n        // Make sure that msg is an object & not null\n        if (receivedCtrlMsg === null) {\n            receivedCtrlMsg = {}\n        } else if (typeof receivedCtrlMsg !== 'object') {\n            const msg = {}\n            msg['uibuilderCtrl:' + this._ioChannels.control] = receivedCtrlMsg\n            receivedCtrlMsg = msg\n        }\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedCtrlMsg)\n\n        this.set('ctrlMsg', receivedCtrlMsg)\n        this.set('msgsCtrlReceived', ++this.msgsCtrlReceived)\n\n        log('trace', 'Uib:ioSetup:_ctrlMsgFromServer', `Channel '${this._ioChannels.control}'. Received control msg #${this.msgsCtrlReceived}`, receivedCtrlMsg)()\n\n        /** Process control msg types */\n        switch (receivedCtrlMsg.uibuilderCtrl) {\n            // Node-RED is shutting down\n            case 'shutdown': {\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, '\u274C Received \"shutdown\" from server')()\n                this.set('serverShutdown', undefined)\n                break\n            }\n\n            /** We are connected to the server - 1st msg from server */\n            case 'client connect': {\n                log('trace', `Uib:ioSetup:${this._ioChannels.control}`, 'Received \"client connect\" from server')()\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, `\u2705 Server connected. Version: ${receivedCtrlMsg.version}\\nServer time: ${receivedCtrlMsg.serverTimestamp}, Sever time offset: ${this.serverTimeOffset} hours`)()\n\n                if ( !Uib._meta.version.startsWith(receivedCtrlMsg.version.split('-')[0]) ) {\n                    log('warn', `Uib:ioSetup:${this._ioChannels.control}`, `Server version (${receivedCtrlMsg.version}) not the same as the client version (${Uib._meta.version})`)()\n                }\n\n                if (this.autoSendReady === true) { // eslint-disable-line no-lonely-if\n                    log('trace', `Uib:ioSetup:${this._ioChannels.control}/client connect`, 'Auto-sending ready-for-content/replay msg to server')\n                    // @since 0.4.8c Add cacheControl property for use with node-red-contrib-infocache\n                    // @since 6.1.0 Don't bother, we use the \"client connect\" msg\n                    // this._send({\n                    //     'uibuilderCtrl': 'ready for content',\n                    //     'cacheControl': 'REPLAY',\n                    // }, this._ioChannels.control)\n                }\n\n                break\n            }\n\n            default: {\n                log('trace', `uibuilderfe:ioSetup:${this._ioChannels.control}`, `Received ${receivedCtrlMsg.uibuilderCtrl} from server`)\n                // Anything else to do for other control msgs?\n            }\n        } // ---- End of process control msg types ---- //\n    } // -- End of websocket receive CONTROL msg from Node-RED -- //\n\n    /** Do we want to process something? Check pageName, clientId, tabId. Defaults to yes.\n     * @param {*} obj Either a msg._ui or msg._uib object to check\n     * @returns {boolean} True if we should process the inbound _ui/_uib msg, false if not.\n     */\n    _forThis(obj) {\n        let r = true\n\n        // Is this msg for this pageName?\n        if (obj.pageName && obj.pageName !== this.pageName) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this page')()\n            r = false\n        }\n\n        // Is this msg for this clientId?\n        if (obj.clientId && obj.clientId !== this.clientId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this clientId')()\n            r = false\n        }\n\n        // Is this msg for this tabId?\n        if (obj.tabId && obj.tabId !== this.tabId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this tabId')()\n            r = false\n        }\n\n        return r\n    }\n\n    // Handle received messages - Process some msgs internally, emit specific events on document that make it easy for coders to use\n    _msgRcvdEvents(msg) {\n        // Message received\n        this._dispatchCustomEvent('uibuilder:stdMsgReceived', msg)\n\n        // Topic\n        if ( msg.topic ) this._dispatchCustomEvent(`uibuilder:msg:topic:${msg.topic}`, msg)\n\n        // Handle msg._uib special requests\n        if (msg._uib) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._uib)) return\n\n            /** Process a client reload request from Node-RED - as the page is reloaded, everything else is ignored\n             * Note that msg._ui.reload is also actioned via the _ui processing below */\n            if (msg._uib.reload === true) {\n                log('trace', 'Uib:_msgRcvdEvents:_uib:reload', 'reloading')()\n                location.reload()\n                return\n            }\n\n            // Process msg._uib.command messages - allows Node-RED to run uibuilder FE functions\n            if (msg._uib.command) {\n                this._uibCommand(msg)\n                return\n            }\n\n            // Better to request via msg._ui - these are for backwards compatibility\n            if ( msg._uib.componentRef === 'globalNotification' ) {\n                _ui.showDialog('notify', msg._uib.options, msg)\n            }\n            if ( msg._uib.componentRef === 'globalAlert' ) {\n                _ui.showDialog('alert', msg._uib.options, msg)\n            }\n        }\n\n        // Handle msg._ui requests\n        if ( msg._ui ) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._ui)) return\n\n            log('trace', 'Uib:_msgRcvdEvents:_ui', 'Calling _uiManager')()\n            this._dispatchCustomEvent('uibuilder:msg:_ui', msg)\n            _ui._uiManager(msg)\n        }\n    } // --- end of _msgRcvdEvents ---\n\n    /** Internal send fn. Send a standard or control msg back to Node-RED via Socket.IO\n     * NR will generally expect the msg to contain a payload topic\n     * @param {object} msgToSend The msg object to send.\n     * @param {string} [channel=uiBuilderClient] The Socket.IO channel to use, must be in self.ioChannels or it will be ignored\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    _send(msgToSend, channel, originator = '') {\n        if (channel === null || channel === undefined) channel = this._ioChannels.client\n\n        // Make sure msgToSend is an object\n        if (channel === this._ioChannels.client) {\n            msgToSend = makeMeAnObject(msgToSend, 'payload')\n        } else if (channel === this._ioChannels.control) {\n            msgToSend = makeMeAnObject(msgToSend, 'uibuilderCtrl')\n            if (!Object.prototype.hasOwnProperty.call(msgToSend, 'uibuilderCtrl')) {\n                msgToSend.uibuilderCtrl = 'manual send'\n            }\n            // help remember where this came from as ctrl msgs can come from server or client\n            msgToSend.from = 'client'\n        }\n\n        /** since 2020-01-02 Added _socketId which should be the same as the _socketId on the server */\n        msgToSend._socketId = this._socket.id\n\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n\n        // Add the originator metadata if required\n        if (originator === '' && this.originator !== '') originator = this.originator\n        if (originator !== '') Object.assign(msgToSend, { '_uib': { 'originator': originator } })\n\n        // If the msg does not have a topic - see if we want to add one\n        if ( !Object.prototype.hasOwnProperty.call(msgToSend, 'topic') ) {\n            // From the default (`uibuilder.set('topic', 'some topic')`)\n            if (this.topic !== undefined && this.topic !== '') msgToSend.topic = this.topic\n            else {\n                // Did the last inbound msg have a topic?\n                if ( Object.prototype.hasOwnProperty.call(this, 'msg') && Object.prototype.hasOwnProperty.call(this.msg, 'topic') ) {\n                    msgToSend.topic = this.msg.topic\n                }\n            }\n        }\n\n        // If a standard send & _ui property exists, make sure to add _ui.from = 'client'\n        if (msgToSend._ui) msgToSend._ui.from = 'client'\n\n        // Track how many messages have been sent & last msg sent\n        let numMsgs\n        if (channel === this._ioChannels.client) {\n            this.set('sentMsg', msgToSend)\n            numMsgs = this.set('msgsSent', ++this.msgsSent)\n        } else if (channel === this._ioChannels.control) {\n            this.set('sentCtrlMsg', msgToSend)\n            numMsgs = this.set('msgsSentCtrl', ++this.msgsSentCtrl)\n        }\n        log('trace', 'Uib:_send', ` Channel '${channel}'. Sending msg #${numMsgs}`, msgToSend)()\n\n        this._socket.emit(channel, msgToSend)\n    } // --- End of Send Msg Fn --- //\n\n    /** Callback handler for messages from Node-RED\n     * NOTE: `this` is the class here rather the `socket` as would be normal since we bind the correct `this` in the call.\n     *       Use this._socket if needing reference to the socket.\n     * @callback ioSetupFromServer Called from ioSetup/this._socket.on(this.#ioChannels.server, this.stdMsgFromServer.bind(this))\n     * @param {object} receivedMsg The msg object from Node-RED\n     * @this Uib\n     */\n    _stdMsgFromServer(receivedMsg) {\n\n        // Make sure that msg is an object & not null\n        receivedMsg = makeMeAnObject(receivedMsg, 'payload')\n\n        // Don't process if the inbound msg is not for us\n        if (receivedMsg._uib && !this._forThis(receivedMsg._uib)) return\n        if (receivedMsg._ui && !this._forThis(receivedMsg._ui)) return\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedMsg)\n\n        // Track how many messages have been received\n        this.set('msgsReceived', ++this.msgsReceived)\n\n        // Emit specific document events on msg receipt that make it easy for coders to use\n        this._msgRcvdEvents(receivedMsg)\n\n        if ( !('_ui' in receivedMsg && !('payload' in receivedMsg)) ) {\n            // Save the msg for further processing\n            this.set('msg', receivedMsg)\n        }\n\n        log('info', 'Uib:ioSetup:stdMsgFromServer', `Channel '${this._ioChannels.server}'. Received msg #${this.msgsReceived}.`, receivedMsg)()\n\n        // ! NOTE: Don't try to handle specialist messages here. See _msgRcvdEvents.\n    } // -- End of websocket receive DATA msg from Node-RED -- //\n\n    /** Process msg._uib.command - Remember to update #extCommands with new allowed commands\n     * @param {object} msg Msg from Node-RED containing a msg._uib object\n     */\n    _uibCommand(msg) {\n        if (!msg._uib || !msg._uib.command) {\n            log('error', 'uibuilder:_uibCommand', 'Invalid command message received', { msg })()\n            msg.payload = msg.error = 'Invalid command message received'\n            this.send(msg)\n            return\n        }\n        const cmd = msg._uib.command\n        // Disallowed command request outputs error and ignores the msg (NB: Case must match)\n        if (!this.#extCommands.includes(cmd.trim())) {\n            log('error', 'Uib:_uibCommand', `Command '${cmd} is not allowed to be called externally`)()\n            return\n        }\n        const prop = msg._uib.prop\n        const value = msg._uib.value\n        const quiet = msg._uib.quiet ?? false\n        let response, info\n\n        // Don't forget to update `#extCommands`, `docs/client-docs/control-from-node-red.md` & `functions.md`\n        switch (cmd) {\n            case 'elementIsVisible': {\n                response = this.elementIsVisible(prop)\n                // info = `Element \"${prop}\" ${response ? 'is visible' : 'is not visible'}`\n                break\n            }\n\n            case 'elementExists': {\n                response = this.elementExists(prop, false)\n                info = `Element \"${prop}\" ${response ? 'exists' : 'does not exist'}`\n                break\n            }\n\n            case 'get': {\n                response = this.get(prop)\n                break\n            }\n\n            case 'getManagedVarList': {\n                if (prop === 'full') response = this.getManagedVarList()\n                else response = Object.values(this.getManagedVarList())\n                break\n            }\n\n            case 'getWatchedVars': {\n                if (prop === 'full') response = this.getWatchedVars()\n                else response = Object.values(this.getWatchedVars())\n                break\n            }\n\n            case 'htmlSend': {\n                response = this.htmlSend('', false)\n                break\n            }\n\n            case 'include': {\n                // include is async\n                response = _ui.include(prop, value)\n                break\n            }\n\n            case 'navigate': {\n                let newUrl\n                if (prop) newUrl = prop\n                else if (value) newUrl = value\n                response = this.navigate(newUrl)\n                break\n            }\n\n            case 'scrollTo': {\n                response = this.scrollTo(prop, value)\n                break\n            }\n\n            case 'set': {\n                let store = false\n                let autoload = false\n                if (msg._uib.options && msg._uib.options.store) {\n                    if (msg._uib.options.store === true) store = true\n                    if (msg._uib.options.autoload === true) autoload = true\n                }\n                response = this.set(prop, value, store, autoload)\n                break\n            }\n\n            case 'showMsg': {\n                response = this.showMsg(value, prop)\n                break\n            }\n\n            case 'showStatus': {\n                response = this.showStatus(value, prop)\n                break\n            }\n\n            case 'uiGet': {\n                response = _ui.uiGet(prop, value)\n                break\n            }\n\n            case 'uiWatch': {\n                response = this.uiWatch(prop)\n                break\n            }\n\n            case 'watchUrlHash': {\n                response = this.watchUrlHash(prop)\n                break\n            }\n\n            default: {\n                log('warning', 'Uib:_uibCommand', `Command '${cmd}' not yet implemented`)()\n                break\n            }\n        }\n\n        if (quiet !== true) {\n            if (response === undefined) {\n                response = `'${prop}' is undefined`\n            }\n            if (Object(response).constructor === Promise) {\n                // response = `'${cmd} ${prop}' submitted. Cmd is async, no response available`\n                response\n                    .then( (/** @type {any} */ data) => {\n                        msg.payload = msg._uib.response = data\n                        msg.info = msg._uib.info = info\n                        if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                        this.send(msg)\n                        return true\n                    })\n                    .catch( err => {\n                        log(0, 'Uib:_uibCommand', 'Error: ', err)()\n                    })\n            } else {\n                msg.payload = msg._uib.response = response\n                msg.info = msg._uib.info = info\n                if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                this.send(msg)\n            }\n        }\n    } // --- end of _uibCommand ---\n\n    /** Send log text to uibuilder's beacon endpoint (works even if socket.io not connected)\n     * @param {string} txtToSend Text string to send\n     * @param {string|undefined} logLevel Log level to use. If not supplied, will default to debug\n     */\n    beaconLog(txtToSend, logLevel) {\n        if (!logLevel) logLevel = 'debug'\n        navigator.sendBeacon('./_clientLog', `${logLevel}::${txtToSend}`)\n    }\n\n    /** Easily send the entire DOM/HTML msg back to Node-RED\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     * @param {boolean} [send] If true (default) directly send response to Node-RED. Is false when calling from Node-RED as a command.\n     * @returns {string} The HTML as a string\n     */\n    htmlSend(originator = '', send = true) {\n        const out = `<!doctype html>\\n${document.documentElement.outerHTML}`\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            payload: out,\n            length: out.length,\n            topic: this.topic,\n        }\n\n        log('trace', 'Uib:htmlSend', 'Sending full HTML to Node-RED', msg)()\n\n        if (send === true) this._send(msg, this._ioChannels.client, originator)\n        return out\n    }\n\n    /** Send log info back to Node-RED over uibuilder's websocket control output (Port #2)\n     * @param {...*} arguments All arguments passed to the function are added to the msg.payload\n     */\n    logToServer() {\n        this.sendCtrl({\n            uibuilderCtrl: 'client log message',\n            payload: arguments,\n            // \"version\":\"6.1.0-iife.min\",\n            _socketId: this._socket.id,\n            // \"ip\":\"::1\",\n            clientId: this.clientId,\n            tabId: this.tabId,\n            // \"url\":\"esp-test\",\n            pageName: this.pageName,\n            connections: this.connectedNum,\n            lastNavType: this.lastNavType,\n        })\n    }\n\n    /** Easily send a msg back to Node-RED on a DOM event\n     * @example In plain HTML/JavaScript\n     *    `<button id=\"button1\" name=\"button 1\" data-fred=\"jim\"></button>`\n     *    $('#button1').onclick = (evt) => {\n     *      uibuilder.eventSend(evt)\n     *    }\n     * @example\n     * In VueJS: `<b-button id=\"myButton1\" @click=\"doEvent\" data-something=\"hello\"></b-button>`\n     * In VueJS methods: `doEvent: uibuilder.eventSend,`\n     *\n     * All `data-` attributes will be passed back to Node-RED,\n     *    use them instead of arguments in the click function.\n     *    All target._ui custom properties are also passed back to Node-RED.\n     *\n     * @param {MouseEvent|any} domevent DOM Event object\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    eventSend(domevent, originator = '') { // eslint-disable-line sonarjs/cognitive-complexity\n        // @ts-ignore Handle case where vue messes up `this`\n        if ( this.$attrs ) {\n            log('error', 'Uib:eventSend', '`this` has been usurped by VueJS. Make sure that you wrap the call in a function: `doEvent: function (event) { uibuilder.eventSend(event) },`' )()\n            return\n        }\n        if (!domevent && !event) {\n            log('warn', 'Uib:eventSend', 'Neither the domevent nor the hidden event properties are set. You probably called this function directly rather than applying to an on click event.' )()\n            return\n        }\n        // Handle no argument, e.g. <button onClick=\"uibuilder.eventSend()\"> - event is a hidden variable when fn used in addEventListener\n        if (!domevent || !domevent.constructor) domevent = event\n\n        // The argument must be a DOM event\n        if ((!domevent.constructor.name.endsWith('Event')) || (!domevent.currentTarget)) {\n            log('warn', 'Uib:eventSend', `ARGUMENT NOT A DOM EVENT - use data attributes not function arguments to pass data. Arg Type: ${domevent.constructor.name}`, domevent)()\n            return\n        }\n\n        // Prevent default event action\n        domevent.preventDefault()\n\n        // The target element\n        const target = domevent.currentTarget\n\n        // Get target properties - only shows custom props not element default ones\n        const props = {}\n        Object.keys(target).forEach( key => {\n            if (key.startsWith('_')) return // Exclude private\n            props[key] = target[key]\n        })\n\n        // Attempt to get target attributs - can fail for certain target types\n        const ignoreAttribs = ['class', 'id', 'name']\n        let attribs\n        try {\n            attribs = Object.assign({},\n                ...Array.from(target.attributes,\n                    ( { name, value } ) => {\n                        if ( !ignoreAttribs.includes(name) ) {\n                            return ({ [name]: value })\n                        }\n                        return undefined\n                    }\n                )\n            )\n        } catch (e) {}\n\n        // If target embedded in a form, include the form data\n        let form\n        const frmVals = []\n        if ( target.form ) {\n            form = {}\n            form.valid = target.form.checkValidity()\n            Object.values(target.form).forEach( (frmEl, i) => {\n                const id = frmEl.id !== '' ? frmEl.id : (frmEl.name !== '' ? frmEl.name : `${i}-${frmEl.type}`)\n\n                // We must have both an element id (we may have forced one above) AND\n                // the element type MUST be not undefined - to allow for the extra properties added by frameworks such as Svelte\n                if (id !== '' && frmEl.type) {\n                    // Stupid HTML doesn't use value attrib for checkboxes. So override if value is set to default\n                    if ('checked' in frmEl && frmEl.value === 'on') frmEl.value = frmEl.checked.toString()\n\n                    frmVals.push( { key: id, val: frmEl.value } ) // simplified for addition to msg.payload\n\n                    form[id] = {\n                        'id': frmEl.id,\n                        'name': frmEl.name,\n                        'value': frmEl.value,\n                        'valid': frmEl.checkValidity(),\n                        'type': frmEl.type,\n                    }\n\n                    if (form[id].valid === false) {\n                        const v = frmEl.validity\n                        form[id].validity = {\n                            badInput: v.badInput === true ? v.badInput : undefined,\n                            customError: v.customError === true ? v.customError : undefined,\n                            patternMismatch: v.patternMismatch === true ? v.patternMismatch : undefined,\n                            rangeOverflow: v.rangeOverflow === true ? v.rangeOverflow : undefined,\n                            rangeUnderflow: v.rangeUnderflow === true ? v.rangeUnderflow : undefined,\n                            stepMismatch: v.stepMismatch === true ? v.stepMismatch : undefined,\n                            tooLong: v.tooLong === true ? v.tooLong : undefined,\n                            tooShort: v.tooShort === true ? v.tooShort : undefined,\n                            typeMismatch: v.typeMismatch === true ? v.typeMismatch : undefined,\n                            valueMissing: v.valueMissing === true ? v.valueMissing : undefined,\n                        }\n                    }\n\n                    if (frmEl.dataset) form[id].data = frmEl.dataset\n                }\n            })\n        }\n\n        // Check for CSS Classes\n        let classes\n        try {\n            classes = Array.from(target.classList)\n        } catch (e) {}\n\n        // Each `data-xxxx` attribute is added as a property\n        let payload = { ...target.dataset }\n\n        // Handle Notification events\n        let nprops\n        if ( Object.prototype.toString.call(target) === '[object Notification]') {\n            // Fixed payload for convenience\n            payload = `notification-${target.userAction}`\n            // Capture the notification properties\n            nprops = {\n                // userAction: target.userAction, // uib custom prop: click, close or error\n                actions: target.actions,\n                badge: target.badge,\n                body: target.body,\n                data: target.data,\n                dir: target.dir,\n                icon: target.icon,\n                image: target.image,\n                lang: target.lang,\n                renotify: target.renotify,\n                requireInteraction: target.requireInteraction,\n                silent: target.silent,\n                tag: target.tag,\n                timestamp: target.timestamp,\n                title: target.title,\n                vibrate: target.vibrate,\n            }\n        }\n        // console.log(Object.prototype.toString.call(target))\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            // - this may be an empty Object if no data attributes defined\n            payload: payload,\n\n            _ui: {\n                type: 'eventSend',\n                id: target.id !== '' ? target.id : undefined,\n                name: target.name !== '' ? target.name : undefined,\n                slotText: target.textContent ? target.textContent.substring(0, 255) : undefined,\n\n                form: form,\n                props: props,\n                attribs: attribs,\n                classes: classes,\n\n                notification: nprops,\n\n                event: domevent.type,\n                altKey: domevent.altKey,\n                ctrlKey: domevent.ctrlKey,\n                shiftKey: domevent.shiftKey,\n                metaKey: domevent.metaKey,\n\n                pointerType: domevent.pointerType,\n                nodeName: target.nodeName,\n\n                clientId: this.clientId,\n                pageName: this.pageName,\n                tabId: this.tabId,\n            }\n        }\n\n        if (frmVals.length > 0) {\n            frmVals.forEach( entry => {\n                msg.payload[entry.key] = entry.val\n            })\n        }\n\n        if (domevent.type === 'change') {\n            // Checkboxes don't have a value!!\n            msg._ui.newValue = msg.payload.value = 'checked' in target ? target.checked : domevent.target.value\n        }\n\n        log('trace', 'Uib:eventSend', 'Sending msg to Node-RED', msg)()\n        if (target.dataset && target.dataset.length === 0) log('warn', 'Uib:eventSend', 'No payload in msg. data-* attributes should be used.')()\n\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Send a standard message to NR\n     * @example uibuilder.send({payload:'Hello'})\n     * @param {object} msg Message to send\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    send(msg, originator = '') {\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Send a control msg to NR\n     * @param {object} msg Message to send\n     */\n    sendCtrl(msg) {\n        this._send(msg, this._ioChannels.control)\n    }\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Socket.IO -------- //\n\n    /** Return the Socket.IO namespace\n     * The cookie method is the most reliable but this falls back to trying to work it\n     * out from the URL if cookies not available. That won't work if page is in a sub-folder.\n     * since 2017-10-21 Improve method to cope with more complex paths - thanks to Steve Rickus @shrickus\n     * since 2017-11-10 v1.0.1 Check cookie first then url. cookie works even if the path is more complex (e.g. sub-folder)\n     * since 2020-01-25 Removed httpRoot from namespace to prevent proxy induced errors\n     * @returns {string} Socket.IO namespace\n     */\n    _getIOnamespace() {\n\n        let ioNamespace\n\n        /** Try getting the namespace cookie. */\n        ioNamespace = this.cookies['uibuilder-namespace']\n\n        // if it wasn't available, try using the current url path\n        if (ioNamespace === undefined || ioNamespace === '') {\n            // split url path & eliminate any blank elements, and trailing or double slashes\n            const u = window.location.pathname.split('/')\n                .filter(function (t) { return t.trim() !== '' })\n\n            /** since v2.0.5 Extra check for 0 length, Issue #73. since 2017-11-06 If the last element of the path is an .html file name, remove it */\n            if (u.length > 0 && (u[u.length - 1].endsWith('.html'))) u.pop()\n\n            // Get the last part of the url path, this MUST match the namespace in uibuilder\n            ioNamespace = u.pop()\n\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via url path: ${ioNamespace}`)()\n        } else {\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via cookie: ${ioNamespace}`)()\n        }\n\n        this.url = ioNamespace\n        // Namespace HAS to start with a /\n        ioNamespace = '/' + ioNamespace\n\n        log('trace', 'uibuilder.module.js:getIOnamespace', `Final Socket.IO namespace: ${ioNamespace}`)()\n\n        return ioNamespace\n    } // --- End of set IO namespace --- //\n\n    /** Function used to check whether Socket.IO is connected to the server, reconnect if not (recursive)\n     * @param {number} [delay] Initial delay before checking (ms). Default=2000ms\n     * @param {number} [factor] Multiplication factor for subsequent checks (delay*factor). Default=1.5\n     * @param {number} [depth] Recursion depth\n     * @returns {boolean|undefined} Whether or not Socket.IO is connected to uibuilder in Node-RED\n     */\n    _checkConnect(delay, factor, depth = 1) {\n        if ( navigator.onLine === false ) return // Don't bother if we know we are offline\n\n        if (!delay) delay = this.retryMs\n        if (!factor) factor = this.retryFactor\n\n        log('trace', 'Uib:checkConnect', `Checking connection. Connected: ${this._socket.connected}. Timer: ${this.#timerid}. Depth: ${depth}. Delay: ${delay}. Factor: ${factor}`, this._socket)()\n\n        // If we are connected ...\n        if (this._socket.connected === true) {\n            // Clear the setTimeout\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this.set('ioConnected', true)\n            this.set('socketError', null)\n            return true\n        }\n\n        // ... we aren't connected so:\n        this.set('ioConnected', false)\n\n        // we only want one running at a time\n        if (this.#timerid) window.clearTimeout(this.#timerid)\n\n        // Create the new timer\n        this.#timerid = window.setTimeout(() => {\n            log('warn', 'Uib:checkConnect:setTimeout', `Socket.IO reconnection attempt. Current delay: ${delay}. Depth: ${depth}`)()\n\n            // this is necessary sometimes when the socket fails to connect on startup\n            this._socket.close()\n\n            // Try to reconnect\n            this._socket.connect()\n\n            // don't need to check whether we have connected as the timer will have been cleared if we have\n            this.#timerid = null\n\n            // @ts-ignore Create new timer for next time round with extended delay\n            this._checkConnect(delay * factor, factor, depth++)\n        }, delay)\n\n        return false\n    } // --- End of checkConnect Fn--- //\n\n    // See message handling section for msg receipt handlers\n\n    /** Called by _ioSetup when Socket.IO connects to Node-RED */\n    _onConnect() {\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n        log('info', 'Uib:ioSetup', `\u2705 SOCKET CONNECTED. Connection count: ${this.connectedNum}, Is a Recovery?: ${this._socket.recovered}. \\nNamespace: ${this.ioNamespace}`)()\n        this._dispatchCustomEvent('uibuilder:socket:connected', { 'numConnections': this.connectedNum, 'isRecovery': this._socket.recovered })\n\n        this._checkConnect() // resets any reconnection timers & sets connected flag\n    }\n\n    /** Called by _ioSetup when Socket.IO disconnects from Node-RED\n     * @param {string} reason Disconnection title\n     */\n    _onDisconnect(reason) {\n        // reason === 'io server disconnect' - redeploy of Node instance\n        // reason === 'transport close' - Node-RED terminating\n        // reason === 'ping timeout' - didn't receive a pong response?\n        log('info', 'Uib:ioSetup:socket-disconnect', `\u26D4 Socket Disconnected. Reason: ${reason}`)()\n\n        this._dispatchCustomEvent('uibuilder:socket:disconnected', reason)\n\n        /** A workaround for SIO's failure to reconnect after a disconnection */\n        this._checkConnect()\n    }\n\n    /** Setup Socket.io\n     * since v2.0.0-beta2 Moved to a function and called by the user (uibuilder.start()) so that namespace & path can be passed manually if needed\n     * @returns {boolean} Attaches socket.io manager to self._socket and updates self.ioNamespace & self.ioPath as needed\n     */\n    _ioSetup() {\n\n        // Just a notification, actual load is done outside the class (see start of file)\n        if (io === undefined) {\n            log('error', 'Uib:ioSetup', 'Socket.IO client not loaded, Node-RED comms will not work')()\n            return false\n        }\n\n        // If socket is already set up, close it and remove all of the listeners\n        if (this._socket) {\n            log('trace', 'Uib:ioSetup', 'Removing listeners in preparation for redoing Socket.IO connections')()\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this._socket.close()\n            this._socket.offAny()\n            this._socket = undefined\n            this.set('ioConnected', false)\n        }\n\n        // Update the URL path to make sure we have the right one\n        this.socketOptions.path = this.ioPath\n\n        // NOTE: this._socket.auth is now set by callback and so automatically updated for each client (re)connection. No need to set here\n\n        // Create the socket - make sure client uses Socket.IO version from the uibuilder module (using path)\n        log('trace', 'Uib:ioSetup', `About to create IO object. Transports: [${this.socketOptions.transports.join(', ')}]`)()\n        this._socket = io(this.ioNamespace, this.socketOptions)\n\n        /** When the socket is connected - set ioConnected flag and reset connect timer  */\n        this._socket.on('connect', this._onConnect.bind(this))\n\n        // RECEIVE a STANDARD, non-control msg from Node-RED server\n        this._socket.on(this._ioChannels.server, this._stdMsgFromServer.bind(this))\n\n        // RECEIVE a CONTROL msg from Node-RED server - see also sendCtrl()\n        this._socket.on(this._ioChannels.control, this._ctrlMsgFromServer.bind(this))\n\n        // When the socket is disconnected ..............\n        this._socket.on('disconnect', this._onDisconnect.bind(this))\n\n        // Socket.io connection error - probably the wrong ioPath - or client is offline\n        this._socket.on('connect_error', (err) => {\n            if ( navigator.onLine === false ) return // Don't bother with an error if we know we are offline\n            log('error', 'Uib:ioSetup:connect_error', `\u274C Socket.IO Connect Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket connect error processing ---\n\n        // Socket.io error - from the server (socket.use middleware triggered an error response)\n        this._socket.on('error', (err) => {\n            log('error', 'Uib:ioSetup:error', `\u274C Socket.IO Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket error processing ---\n\n        // Ensure we are connected, retry if not\n        this._checkConnect()\n\n        return true\n\n        /* We really don't need these, just for interest\n            self._socket.io.on('packet', function onPacket(data){\n                // we get one of these for each REAL msg (not ping/pong)\n                console.debug('PACKET', data)\n            })\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n                //console.dir(self._socket)\n            }) // --- End of socket pong processing ---\n            self._socket.io.on('packet', function(data){\n                // We get one of these for actual messages, not ping/pong\n                console.debug('PACKET', data)\n            })\n            self._socket.on('connect_timeout', function(timeout) {\n                console.debug('SOCKET CONNECT TIMEOUT - Namespace: ' + ioNamespace + ', Timeout: ' + timeout)\n            }) // --- End of socket connect timeout processing ---\n            self._socket.on('reconnect', function(attemptNum) {\n                console.debug('SOCKET RECONNECTED - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect processing ---\n            self._socket.on('reconnect_attempt', function(attemptNum) {\n                console.debug('SOCKET RECONNECT ATTEMPT - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect_attempt processing ---\n            self._socket.on('reconnecting', function(attemptNum) {\n                console.debug('SOCKET RECONNECTING - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnecting processing ---\n            self._socket.on('reconnect_error', function(err) {\n                console.debug('SOCKET RECONNECT ERROR - Namespace: ' + ioNamespace + ', Reason: ' + err.message)\n                //console.dir(err)\n            }) // --- End of socket reconnect_error processing ---\n            self._socket.on('reconnect_failed', function() {\n                console.debug('SOCKET RECONNECT FAILED - Namespace: ' + ioNamespace)\n            }) // --- End of socket reconnect_failed processing ---\n            self._socket.on('ping', function() {\n                console.debug('SOCKET PING')\n            }) // --- End of socket ping processing ---\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n            }) // --- End of socket pong processing ---\n            */\n    } // ---- End of ioSetup ---- //\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Class construction & startup method -------- //\n\n    constructor() {\n        log('trace', 'Uib:constructor', 'Starting')()\n\n        // Track whether the client is online or offline\n        window.addEventListener('offline', (e) => {\n            this.set('online', false)\n            this.set('ioConnected', false)\n            log('warn', 'Browser', 'DISCONNECTED from network')()\n        })\n        window.addEventListener('online', (e) => {\n            this.set('online', true)\n            log('warn', 'Browser', 'Reconnected to network')()\n            this._checkConnect()\n        })\n\n        document.cookie.split(';').forEach((c) => {\n            const splitC = c.split('=')\n            this.cookies[splitC[0].trim()] = splitC[1]\n        })\n\n        /** Client ID set by uibuilder - lasts until browser profile is closed, applies to all tabs */\n        this.set('clientId', this.cookies['uibuilder-client-id'])\n        log('trace', 'Uib:constructor', 'Client ID: ', this.clientId)()\n\n        /** Tab ID - lasts while the tab is open (even if reloaded)\n         * WARNING: Duplicating a tab retains the same tabId\n         */\n        this.set('tabId', window.sessionStorage.getItem('tabId'))\n        if (!this.tabId) {\n            this.set('tabId', `t${Math.floor(Math.random() * 1000000)}`)\n            window.sessionStorage.setItem('tabId', this.tabId)\n        }\n\n        // document.addEventListener('pagehide', (event) => {\n        //     // console.log(`pagehide. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pagehide. From Cache?: ${event.persisted}`)\n        // })\n        // document.addEventListener('pageshow', (event) => {\n        //     // console.log(`pageshow. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pageshow. From Cache?: ${event.persisted}`)\n        // })\n        document.addEventListener('load', () => {\n            this.set('isVisible', true)\n        })\n        document.addEventListener('visibilitychange', () => {\n            // hidden=unload, minimise. visible=un-minimise (not fired on load)\n            this.set('isVisible', document.visibilityState === 'visible')\n            this.sendCtrl({ uibuilderCtrl: 'visibility', isVisible: this.isVisible })\n            // navigator.userActivation is experimental Chromium only\n            // console.log('visibilitychange', ':', `Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n            // navigator.sendBeacon('./_clientLog', `${(new Date()).toISOString()} Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n        })\n\n        // Set a listener to update showStatus table if it is active\n        document.addEventListener('uibuilder:propertyChanged', (event) => {\n            if (!this.#isShowStatus) return\n\n            // @ts-ignore\n            if (event.detail.prop in this.#showStatus) {\n                // @ts-ignore\n                document.querySelector(`td[data-vartype=\"${event.detail.prop}\"]`).innerText = JSON.stringify(event.detail.value)\n            }\n        })\n\n        this.set('ioNamespace', this._getIOnamespace())\n\n        //#region - Try to make sure client uses Socket.IO client version from the uibuilder module (using cookie or path) @since v2.0.0 2019-02-24 allows for httpNodeRoot\n\n        /** httpNodeRoot (to set path) */\n        if ('uibuilder-webRoot' in this.cookies) {\n            this.set('httpNodeRoot', this.cookies['uibuilder-webRoot'])\n            log('trace', 'Uib:constructor', `httpNodeRoot set by cookie to \"${this.httpNodeRoot}\"`)()\n        } else {\n            // split current url path, eliminate any blank elements and trailing or double slashes\n            const fullPath = window.location.pathname.split('/').filter(function (t) { return t.trim() !== '' })\n            /** handle url includes file name - @since v2.0.5 Extra check for 0 length, Issue #73. */\n            if (fullPath.length > 0 && fullPath[fullPath.length - 1].endsWith('.html')) fullPath.pop()\n            fullPath.pop() // gives the last path section of the url\n            this.set('httpNodeRoot', `/${fullPath.join('/')}`)\n            log('trace', '[Uib:constructor]', `httpNodeRoot set by URL parsing to \"${this.httpNodeRoot}\". NOTE: This may fail for pages in sub-folders.`)()\n        }\n        this.set('ioPath', urlJoin(this.httpNodeRoot, Uib._meta.displayName, 'vendor', 'socket.io'))\n        log('trace', 'Uib:constructor', `ioPath: \"${this.ioPath}\"`)()\n\n        //#endregion\n\n        // Work out pageName\n        this.set('pageName', window.location.pathname.replace(`${this.ioNamespace}/`, ''))\n        if ( this.pageName.endsWith('/') ) this.set('pageName', `${this.pageName}index.html`)\n        if ( this.pageName === '' ) this.set('pageName', 'index.html')\n\n        // Attempt to restore autoload variables\n        try {\n            const autoloadVars = this.getStore('_uibAutoloadVars')\n            if (Object.keys(autoloadVars).length > 0) {\n                Object.keys(autoloadVars).forEach( (id) => {\n                    this.set(id, this.getStore(id))\n                })\n            }\n        } catch (e) {}\n\n        this._dispatchCustomEvent('uibuilder:constructorComplete')\n\n        log('trace', 'Uib:constructor', 'Ending')()\n    }\n\n    /** Start up Socket.IO comms and listeners\n     * This has to be done separately because if running from a web page in a sub-folder of src/dist, uibuilder cannot\n     * necessarily work out the correct ioPath to use.\n     * Also, if cookies aren't permitted in the browser, both ioPath and ioNamespace may need to be specified.\n     * @param {object} [options] The start options object.\n     * @returns {void}\n     */\n    start(options) {\n        log('trace', 'Uib:start', 'Starting')()\n\n        // Cancel the msg event handler if already present\n        if ( this.#MsgHandler ) this.cancelChange('msg', this.#MsgHandler)\n\n        if (this.started === true) {\n            log('info', 'Uib:start', 'Start function already called. Resetting Socket.IO and msg handler.')()\n        }\n\n        log('log', 'Uib:start', 'Cookies: ', this.cookies, `\\nClient ID: ${this.clientId}`)()\n        log('trace', 'Uib:start', 'ioNamespace: ', this.ioNamespace, `\\nioPath: ${this.ioPath}`)()\n\n        // Handle options\n        if (options) {\n            if (options.ioNamespace !== undefined && options.ioNamespace !== null && options.ioNamespace !== '') this.set('ioNamespace', options.ioNamespace)\n            if (options.ioPath !== undefined && options.ioPath !== null && options.ioPath !== '') this.set('ioPath', options.ioPath)\n            // See below for handling of options.loadStylesheet\n        }\n\n        // Do we need to load styles?\n        if ( document.styleSheets.length >= 1 || (document.styleSheets.length === 1 && document.styleSheets[0].cssRules.length === 0) ) {\n            log('info', 'Uib:start', 'Styles already loaded so not loading uibuilder default styles.')()\n        } else {\n            if (options && options.loadStylesheet === false) log('info', 'Uib:start', 'No styles loaded & options.loadStylesheet === false.')()\n            else {\n                log('info', 'Uib:start', 'No styles loaded, loading uibuilder default styles.')()\n                this.loadStyleSrc(`${this.httpNodeRoot}/uibuilder/uib-brand.min.css`)\n            }\n        }\n\n        /** Handle specialist messages like reload and _ui -> Moved to _msgRcvdEvents */\n\n        // Track last browser navigation type: navigate, reload, back_forward, prerender\n        const [entry] = performance.getEntriesByType('navigation')\n        // @ts-ignore\n        this.set('lastNavType', entry.type)\n\n        // Start up (or restart) Socket.IO connections and listeners. Returns false if io not found\n        this.set('started', this._ioSetup())\n\n        if ( this.started === true ) {\n            log('trace', 'Uib:start', 'Start completed. Socket.IO client library loaded.')()\n        } else {\n            log('error', 'Uib:start', 'Start completed. ERROR: Socket.IO client library NOT LOADED.')()\n        }\n\n        // Watch for URL hash changes in case using a front-end router. Updates watched var `urlHash` and socket.io `auth.urlHash`\n        this._watchHashChanges()\n\n        // Check if Vue is present (used for dynamic UI processing)\n        if (window['Vue']) {\n            this.set('isVue', true)\n            try {\n                this.set('vueVersion', window['Vue'].version)\n            } catch (e) { }\n            log('trace', 'Uib:start', `VueJS is loaded. Version: ${this.vueVersion}`)()\n        } else {\n            log('trace', 'Uib:start', 'VueJS is not loaded.')()\n        }\n\n        // Check if DOMPurify library is loaded\n        if (window['DOMPurify']) {\n            this.set('purify', true)\n            log('trace', 'Uib:start', 'DOMPurify is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'DOMPurify is not loaded.')()\n        }\n        // Check if Markdown-IT library is loaded\n        if (window['markdownit']) {\n            this.set('markdown', true)\n            log('trace', 'Uib:start', 'Markdown-IT is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'Markdown-IT is not loaded.')()\n        }\n\n        // if (window['DOMPurify']) {\n        //     this.set('purify', true)\n        //     log('trace', 'Uib:start', 'DOMPurify is loaded.')\n        // } else {\n        //     log('trace', 'Uib:start', 'DOMPurify is not loaded.')\n        // }\n\n        // Set up msg listener for the optional showMsg\n        this.onChange('msg', (msg) => {\n            if (this.#isShowMsg === true) {\n                const eMsg = document.getElementById('uib_last_msg')\n                if (eMsg) eMsg.innerHTML = this.syntaxHighlight(msg)\n            }\n        })\n\n        this._dispatchCustomEvent('uibuilder:startComplete')\n    }\n\n    //#endregion -------- ------------ -------- //\n} // ==== End of Class Uib ====\n\n//#region --- Wrap up - get things started ---\n\n// Create an instance (we will only ever want one)\nconst uibuilder = new Uib()\n\n// Assign reference to the instance to the global `window` object\n// Only useful if loading via <script> tag - prefer loading via `import uibuilder from ...`\nif (!window['uibuilder']) {\n    window['uibuilder'] = uibuilder\n} else {\n    log('error', 'uibuilder.module.js', '`uibuilder` already assigned to window. Have you tried to load it more than once?')\n}\nif (!window['uib']) {\n    window['uib'] = uibuilder\n} else {\n    log('warn', 'uibuilder.module.js', '`uib` shortcut already assigned to window.')\n}\n\n// Assign `$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$`.\nif (!window['$']) {\n    /** @type {HTMLElement} */\n    window['$'] = window['uibuilder'].$ // document.querySelector.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` or `uib.$` instead.')\n}\n// Assign `$$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$$']) {\n    /** @type {HTMLElement} */\n    window['$$'] = window['uibuilder'].$$ // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` or `uib.$$` instead.')\n}\n\n// Assign `$ui` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$ui']) {\n    /** @type {HTMLElement} */\n    window['$ui'] = window['uibuilder'].$ui // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$ui`, it is already in use. Use `uibuilder.$ui` or `uib.$ui` instead.')\n}\n\n// Can import as `import uibuilder from ...` OR `import {uibuilder} from ...`\nexport { uibuilder }\nexport default uibuilder\n\n// Attempt to run start fn\nuibuilder.start()\n\n// Add the class as a new Custom Element to the window object\ncustomElements.define('uib-var', UibVar)\n\n//#endregion --- Wrap up ---\n\n// EOF\n", "/** A zero dependency web component that will display a managed uibuilder variable.\n *\n * Version: 0.0.1 2023-10-07\n *\n * ToDo:\n * -\n */\n/*\n  Copyright (c) 2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n// const template = document.createElement('template')\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<link type=\"text/css\" rel=\"stylesheet\" href=\"\"../uibuilder/uib-brand.min.css\"\" media=\"all\"><span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`\n// {/* <style>@import url(\"../uibuilder/uib-brand.min.css\");</style><span></span> */}\n// `\n\nexport default class UibVar extends HTMLElement {\n    //#region --- Class Properties ---\n    /** @type {string} Name of the uibuilder mangaged variable to use */\n    variable\n    /** Current value of the watched variable */\n    value\n    /** Whether to output if the variable is undefined */\n    undefined = false\n    /** Whether to send update value to Node-RED on change */\n    report = false\n    /** What is the value type */\n    type = 'plain'\n    /** what are the available types? */\n    types = ['plain', 'html', 'markdown', 'object']\n\n    /** Mini jQuery-like shadow dom selector (see constructor) */\n    $\n    \n    /** Holds a count of how many instances of this component are on the page */\n    static _iCount = 0\n    /** @type {Array<string>} List of all of the html attribs (props) listened to */\n    static props = ['name', 'id', 'variable', 'undefined', 'report', 'type']\n    //#endregion --- Class Properties ---\n\n    constructor() {\n        super()\n        this.shadow = this.attachShadow({ mode: 'open', delegatesFocus: true })\n            // .append(template.content.cloneNode(true))\n\n        this.$ = this.shadowRoot.querySelector.bind(this.shadowRoot)\n\n        // Apply external styles to the shadow dom\n        this.css = document.createElement(\"link\")\n        this.css.setAttribute(\"type\", \"text/css\")\n        this.css.setAttribute(\"rel\", \"stylesheet\")\n        this.css.setAttribute(\"href\", \"../uibuilder/uib-brand.min.css\")\n\n        this.dispatchEvent(new Event(`uib-var:construction`, { bubbles: true, composed: true }))\n    }\n\n    // Makes HTML attribute change watched\n    static get observedAttributes() {\n        return UibVar.props\n    }\n\n    /** NOTE: On initial startup, this is called for each watched attrib set in HTML - BEFORE connectedCallback is called  */\n    attributeChangedCallback(attrib, oldVal, newVal) {\n        if ( oldVal === newVal ) return\n\n        switch (attrib) {\n            case 'variable': {\n                if (newVal === '') throw new Error('[uib-var] Attribute \"variable\" MUST be set to a UIBUILDER managed variable name')\n                this.variable = newVal\n                this.doWatch()\n                break\n            }\n            case 'undefined': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.undefined = true\n                else this.undefined = false\n                break\n            }\n            case 'report': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.report = true\n                else this.report = false\n                break\n            }\n            case 'type': {\n                if (newVal === '' || !this.types.includes(newVal.toLowerCase())) this.type = 'plain'\n                else this.type = newVal\n                break\n            }\n\n            default: {\n                this[attrib] = newVal\n                break\n            }\n        }\n    } // --- end of attributeChangedCallback --- //\n\n    // Runs when an instance is added to the DOM\n    connectedCallback() {\n        // Make sure instance has an ID. Create an id from name or calculation if needed\n        if (!this.id) {\n            if (!this.name) this.name = this.getAttribute('name')\n            if (this.name) this.id = this.name.toLowerCase().replace(/\\s/g, '_')\n            else this.id = `uib-var-${++UibVar._iCount}`\n        }\n    }  // ---- end of connectedCallback ---- //\n\n    // Runs when an instance is removed from the DOM\n    // disconnectedCallback() {} // ---- end of disconnectedCallback ---- //\n\n    /** Process changes to the required uibuilder variable */\n    doWatch() {\n        if (!this.variable) throw new Error('No variable name provided')\n        // if (!window['uibuilder']) throw new Error('UIBUILDER client library not loaded - this component must be loaded AFTER the UIBUILDER library')\n\n        this.value = window['uibuilder'].get(this.variable)\n        this.varDom()\n\n        // Watch for changes in the variable\n        window['uibuilder'].onChange(this.variable, (val) => {\n            this.value = val\n            this.varDom()\n            if (this.report === true) window['uibuilder'].send({topic: this.variable, payload: this.value || undefined})\n        })\n    }\n\n    /** Convert this.value to DOM output */\n    varDom() {\n        // If user doesn't want to show undefined vars, allow the component slot to show instead\n        if (this.value === undefined && this.undefined !== true) { \n            this.shadow.innerHTML = '<slot></slot>'\n            return\n        }\n        \n        let val = this.value\n\n        // console.log('\uD83E\uDDEA varDOM: ', val, typeof val, this.type)\n\n        switch (this.type) {\n            case 'markdown': {\n                this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(window['uibuilder'].convertMarkdown(val))\n                break\n            }\n        \n            case 'object': {\n                // console.log(window['uibuilder'].syntaxHighlight(val))\n                this.shadow.innerHTML = `<pre class=\"syntax-highlight\">${window['uibuilder'].syntaxHighlight(val)}</pre>`\n                break\n            }\n        \n            case 'plain':\n            case 'html':\n            default: {\n                const t = typeof val\n                if (Array.isArray(val) || t === '[object Object]' || t === 'object') {\n                    try {\n                        this.shadow.innerHTML = JSON.stringify(val)\n                    } catch (e) {\n                        this.shadow.innerHTML = val\n                    }\n                } else {\n                    this.shadow.innerHTML = val\n                }\n                break\n            }\n        }\n\n        this.shadow.appendChild(this.css)\n        // this.$('span').innerHTML = window['uibuilder'].sanitiseHTML(val)\n        // this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(val)\n    }\n}\n\n// Add the class as a new Custom Element to the window object \n// customElements.define('uib-var', UibVar)\n", "const PACKET_TYPES = Object.create(null); // no Map = no polyfill\nPACKET_TYPES[\"open\"] = \"0\";\nPACKET_TYPES[\"close\"] = \"1\";\nPACKET_TYPES[\"ping\"] = \"2\";\nPACKET_TYPES[\"pong\"] = \"3\";\nPACKET_TYPES[\"message\"] = \"4\";\nPACKET_TYPES[\"upgrade\"] = \"5\";\nPACKET_TYPES[\"noop\"] = \"6\";\nconst PACKET_TYPES_REVERSE = Object.create(null);\nObject.keys(PACKET_TYPES).forEach(key => {\n    PACKET_TYPES_REVERSE[PACKET_TYPES[key]] = key;\n});\nconst ERROR_PACKET = { type: \"error\", data: \"parser error\" };\nexport { PACKET_TYPES, PACKET_TYPES_REVERSE, ERROR_PACKET };\n", "import { PACKET_TYPES } from \"./commons.js\";\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        Object.prototype.toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\n// ArrayBuffer.isView method is not defined in IE10\nconst isView = obj => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj && obj.buffer instanceof ArrayBuffer;\n};\nconst encodePacket = ({ type, data }, supportsBinary, callback) => {\n    if (withNativeBlob && data instanceof Blob) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(data, callback);\n        }\n    }\n    else if (withNativeArrayBuffer &&\n        (data instanceof ArrayBuffer || isView(data))) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(new Blob([data]), callback);\n        }\n    }\n    // plain string\n    return callback(PACKET_TYPES[type] + (data || \"\"));\n};\nconst encodeBlobAsBase64 = (data, callback) => {\n    const fileReader = new FileReader();\n    fileReader.onload = function () {\n        const content = fileReader.result.split(\",\")[1];\n        callback(\"b\" + (content || \"\"));\n    };\n    return fileReader.readAsDataURL(data);\n};\nfunction toArray(data) {\n    if (data instanceof Uint8Array) {\n        return data;\n    }\n    else if (data instanceof ArrayBuffer) {\n        return new Uint8Array(data);\n    }\n    else {\n        return new Uint8Array(data.buffer, data.byteOffset, data.byteLength);\n    }\n}\nlet TEXT_ENCODER;\nexport function encodePacketToBinary(packet, callback) {\n    if (withNativeBlob && packet.data instanceof Blob) {\n        return packet.data\n            .arrayBuffer()\n            .then(toArray)\n            .then(callback);\n    }\n    else if (withNativeArrayBuffer &&\n        (packet.data instanceof ArrayBuffer || isView(packet.data))) {\n        return callback(toArray(packet.data));\n    }\n    encodePacket(packet, false, encoded => {\n        if (!TEXT_ENCODER) {\n            TEXT_ENCODER = new TextEncoder();\n        }\n        callback(TEXT_ENCODER.encode(encoded));\n    });\n}\nexport { encodePacket };\n", "// imported from https://github.com/socketio/base64-arraybuffer\nconst chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';\n// Use a lookup table to find the index.\nconst lookup = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);\nfor (let i = 0; i < chars.length; i++) {\n    lookup[chars.charCodeAt(i)] = i;\n}\nexport const encode = (arraybuffer) => {\n    let bytes = new Uint8Array(arraybuffer), i, len = bytes.length, base64 = '';\n    for (i = 0; i < len; i += 3) {\n        base64 += chars[bytes[i] >> 2];\n        base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];\n        base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];\n        base64 += chars[bytes[i + 2] & 63];\n    }\n    if (len % 3 === 2) {\n        base64 = base64.substring(0, base64.length - 1) + '=';\n    }\n    else if (len % 3 === 1) {\n        base64 = base64.substring(0, base64.length - 2) + '==';\n    }\n    return base64;\n};\nexport const decode = (base64) => {\n    let bufferLength = base64.length * 0.75, len = base64.length, i, p = 0, encoded1, encoded2, encoded3, encoded4;\n    if (base64[base64.length - 1] === '=') {\n        bufferLength--;\n        if (base64[base64.length - 2] === '=') {\n            bufferLength--;\n        }\n    }\n    const arraybuffer = new ArrayBuffer(bufferLength), bytes = new Uint8Array(arraybuffer);\n    for (i = 0; i < len; i += 4) {\n        encoded1 = lookup[base64.charCodeAt(i)];\n        encoded2 = lookup[base64.charCodeAt(i + 1)];\n        encoded3 = lookup[base64.charCodeAt(i + 2)];\n        encoded4 = lookup[base64.charCodeAt(i + 3)];\n        bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n        bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n        bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n    }\n    return arraybuffer;\n};\n", "import { ERROR_PACKET, PACKET_TYPES_REVERSE } from \"./commons.js\";\nimport { decode } from \"./contrib/base64-arraybuffer.js\";\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nexport const decodePacket = (encodedPacket, binaryType) => {\n    if (typeof encodedPacket !== \"string\") {\n        return {\n            type: \"message\",\n            data: mapBinary(encodedPacket, binaryType)\n        };\n    }\n    const type = encodedPacket.charAt(0);\n    if (type === \"b\") {\n        return {\n            type: \"message\",\n            data: decodeBase64Packet(encodedPacket.substring(1), binaryType)\n        };\n    }\n    const packetType = PACKET_TYPES_REVERSE[type];\n    if (!packetType) {\n        return ERROR_PACKET;\n    }\n    return encodedPacket.length > 1\n        ? {\n            type: PACKET_TYPES_REVERSE[type],\n            data: encodedPacket.substring(1)\n        }\n        : {\n            type: PACKET_TYPES_REVERSE[type]\n        };\n};\nconst decodeBase64Packet = (data, binaryType) => {\n    if (withNativeArrayBuffer) {\n        const decoded = decode(data);\n        return mapBinary(decoded, binaryType);\n    }\n    else {\n        return { base64: true, data }; // fallback for old browsers\n    }\n};\nconst mapBinary = (data, binaryType) => {\n    switch (binaryType) {\n        case \"blob\":\n            if (data instanceof Blob) {\n                // from WebSocket + binaryType \"blob\"\n                return data;\n            }\n            else {\n                // from HTTP long-polling or WebTransport\n                return new Blob([data]);\n            }\n        case \"arraybuffer\":\n        default:\n            if (data instanceof ArrayBuffer) {\n                // from HTTP long-polling (base64) or WebSocket + binaryType \"arraybuffer\"\n                return data;\n            }\n            else {\n                // from WebTransport (Uint8Array)\n                return data.buffer;\n            }\n    }\n};\n", "import { encodePacket, encodePacketToBinary } from \"./encodePacket.js\";\nimport { decodePacket } from \"./decodePacket.js\";\nimport { ERROR_PACKET } from \"./commons.js\";\nconst SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text\nconst encodePayload = (packets, callback) => {\n    // some packets may be added to the array while encoding, so the initial length must be saved\n    const length = packets.length;\n    const encodedPackets = new Array(length);\n    let count = 0;\n    packets.forEach((packet, i) => {\n        // force base64 encoding for binary packets\n        encodePacket(packet, false, encodedPacket => {\n            encodedPackets[i] = encodedPacket;\n            if (++count === length) {\n                callback(encodedPackets.join(SEPARATOR));\n            }\n        });\n    });\n};\nconst decodePayload = (encodedPayload, binaryType) => {\n    const encodedPackets = encodedPayload.split(SEPARATOR);\n    const packets = [];\n    for (let i = 0; i < encodedPackets.length; i++) {\n        const decodedPacket = decodePacket(encodedPackets[i], binaryType);\n        packets.push(decodedPacket);\n        if (decodedPacket.type === \"error\") {\n            break;\n        }\n    }\n    return packets;\n};\nexport function createPacketEncoderStream() {\n    return new TransformStream({\n        transform(packet, controller) {\n            encodePacketToBinary(packet, encodedPacket => {\n                const payloadLength = encodedPacket.length;\n                let header;\n                // inspired by the WebSocket format: https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API/Writing_WebSocket_servers#decoding_payload_length\n                if (payloadLength < 126) {\n                    header = new Uint8Array(1);\n                    new DataView(header.buffer).setUint8(0, payloadLength);\n                }\n                else if (payloadLength < 65536) {\n                    header = new Uint8Array(3);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 126);\n                    view.setUint16(1, payloadLength);\n                }\n                else {\n                    header = new Uint8Array(9);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 127);\n                    view.setBigUint64(1, BigInt(payloadLength));\n                }\n                // first bit indicates whether the payload is plain text (0) or binary (1)\n                if (packet.data && typeof packet.data !== \"string\") {\n                    header[0] |= 0x80;\n                }\n                controller.enqueue(header);\n                controller.enqueue(encodedPacket);\n            });\n        }\n    });\n}\nlet TEXT_DECODER;\nfunction totalLength(chunks) {\n    return chunks.reduce((acc, chunk) => acc + chunk.length, 0);\n}\nfunction concatChunks(chunks, size) {\n    if (chunks[0].length === size) {\n        return chunks.shift();\n    }\n    const buffer = new Uint8Array(size);\n    let j = 0;\n    for (let i = 0; i < size; i++) {\n        buffer[i] = chunks[0][j++];\n        if (j === chunks[0].length) {\n            chunks.shift();\n            j = 0;\n        }\n    }\n    if (chunks.length && j < chunks[0].length) {\n        chunks[0] = chunks[0].slice(j);\n    }\n    return buffer;\n}\nexport function createPacketDecoderStream(maxPayload, binaryType) {\n    if (!TEXT_DECODER) {\n        TEXT_DECODER = new TextDecoder();\n    }\n    const chunks = [];\n    let state = 0 /* READ_HEADER */;\n    let expectedLength = -1;\n    let isBinary = false;\n    return new TransformStream({\n        transform(chunk, controller) {\n            chunks.push(chunk);\n            while (true) {\n                if (state === 0 /* READ_HEADER */) {\n                    if (totalLength(chunks) < 1) {\n                        break;\n                    }\n                    const header = concatChunks(chunks, 1);\n                    isBinary = (header[0] & 0x80) === 0x80;\n                    expectedLength = header[0] & 0x7f;\n                    if (expectedLength < 126) {\n                        state = 3 /* READ_PAYLOAD */;\n                    }\n                    else if (expectedLength === 126) {\n                        state = 1 /* READ_EXTENDED_LENGTH_16 */;\n                    }\n                    else {\n                        state = 2 /* READ_EXTENDED_LENGTH_64 */;\n                    }\n                }\n                else if (state === 1 /* READ_EXTENDED_LENGTH_16 */) {\n                    if (totalLength(chunks) < 2) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 2);\n                    expectedLength = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length).getUint16(0);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else if (state === 2 /* READ_EXTENDED_LENGTH_64 */) {\n                    if (totalLength(chunks) < 8) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 8);\n                    const view = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length);\n                    const n = view.getUint32(0);\n                    if (n > Math.pow(2, 53 - 32) - 1) {\n                        // the maximum safe integer in JavaScript is 2^53 - 1\n                        controller.enqueue(ERROR_PACKET);\n                        break;\n                    }\n                    expectedLength = n * Math.pow(2, 32) + view.getUint32(4);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else {\n                    if (totalLength(chunks) < expectedLength) {\n                        break;\n                    }\n                    const data = concatChunks(chunks, expectedLength);\n                    controller.enqueue(decodePacket(isBinary ? data : TEXT_DECODER.decode(data), binaryType));\n                    state = 0 /* READ_HEADER */;\n                }\n                if (expectedLength === 0 || expectedLength > maxPayload) {\n                    controller.enqueue(ERROR_PACKET);\n                    break;\n                }\n            }\n        }\n    });\n}\nexport const protocol = 4;\nexport { encodePacket, encodePayload, decodePacket, decodePayload };\n", "/**\n * Initialize a new `Emitter`.\n *\n * @api public\n */\n\nexport function Emitter(obj) {\n  if (obj) return mixin(obj);\n}\n\n/**\n * Mixin the emitter properties.\n *\n * @param {Object} obj\n * @return {Object}\n * @api private\n */\n\nfunction mixin(obj) {\n  for (var key in Emitter.prototype) {\n    obj[key] = Emitter.prototype[key];\n  }\n  return obj;\n}\n\n/**\n * Listen on the given `event` with `fn`.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.on =\nEmitter.prototype.addEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])\n    .push(fn);\n  return this;\n};\n\n/**\n * Adds an `event` listener that will be invoked a single\n * time then automatically removed.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.once = function(event, fn){\n  function on() {\n    this.off(event, on);\n    fn.apply(this, arguments);\n  }\n\n  on.fn = fn;\n  this.on(event, on);\n  return this;\n};\n\n/**\n * Remove the given callback for `event` or all\n * registered callbacks.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.off =\nEmitter.prototype.removeListener =\nEmitter.prototype.removeAllListeners =\nEmitter.prototype.removeEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n\n  // all\n  if (0 == arguments.length) {\n    this._callbacks = {};\n    return this;\n  }\n\n  // specific event\n  var callbacks = this._callbacks['$' + event];\n  if (!callbacks) return this;\n\n  // remove all handlers\n  if (1 == arguments.length) {\n    delete this._callbacks['$' + event];\n    return this;\n  }\n\n  // remove specific handler\n  var cb;\n  for (var i = 0; i < callbacks.length; i++) {\n    cb = callbacks[i];\n    if (cb === fn || cb.fn === fn) {\n      callbacks.splice(i, 1);\n      break;\n    }\n  }\n\n  // Remove event specific arrays for event types that no\n  // one is subscribed for to avoid memory leak.\n  if (callbacks.length === 0) {\n    delete this._callbacks['$' + event];\n  }\n\n  return this;\n};\n\n/**\n * Emit `event` with the given args.\n *\n * @param {String} event\n * @param {Mixed} ...\n * @return {Emitter}\n */\n\nEmitter.prototype.emit = function(event){\n  this._callbacks = this._callbacks || {};\n\n  var args = new Array(arguments.length - 1)\n    , callbacks = this._callbacks['$' + event];\n\n  for (var i = 1; i < arguments.length; i++) {\n    args[i - 1] = arguments[i];\n  }\n\n  if (callbacks) {\n    callbacks = callbacks.slice(0);\n    for (var i = 0, len = callbacks.length; i < len; ++i) {\n      callbacks[i].apply(this, args);\n    }\n  }\n\n  return this;\n};\n\n// alias used for reserved events (protected method)\nEmitter.prototype.emitReserved = Emitter.prototype.emit;\n\n/**\n * Return array of callbacks for `event`.\n *\n * @param {String} event\n * @return {Array}\n * @api public\n */\n\nEmitter.prototype.listeners = function(event){\n  this._callbacks = this._callbacks || {};\n  return this._callbacks['$' + event] || [];\n};\n\n/**\n * Check if this emitter has `event` handlers.\n *\n * @param {String} event\n * @return {Boolean}\n * @api public\n */\n\nEmitter.prototype.hasListeners = function(event){\n  return !! this.listeners(event).length;\n};\n", "export const globalThisShim = (() => {\n    if (typeof self !== \"undefined\") {\n        return self;\n    }\n    else if (typeof window !== \"undefined\") {\n        return window;\n    }\n    else {\n        return Function(\"return this\")();\n    }\n})();\n", "import { globalThisShim as globalThis } from \"./globalThis.js\";\nexport function pick(obj, ...attr) {\n    return attr.reduce((acc, k) => {\n        if (obj.hasOwnProperty(k)) {\n            acc[k] = obj[k];\n        }\n        return acc;\n    }, {});\n}\n// Keep a reference to the real timeout functions so they can be used when overridden\nconst NATIVE_SET_TIMEOUT = globalThis.setTimeout;\nconst NATIVE_CLEAR_TIMEOUT = globalThis.clearTimeout;\nexport function installTimerFunctions(obj, opts) {\n    if (opts.useNativeTimers) {\n        obj.setTimeoutFn = NATIVE_SET_TIMEOUT.bind(globalThis);\n        obj.clearTimeoutFn = NATIVE_CLEAR_TIMEOUT.bind(globalThis);\n    }\n    else {\n        obj.setTimeoutFn = globalThis.setTimeout.bind(globalThis);\n        obj.clearTimeoutFn = globalThis.clearTimeout.bind(globalThis);\n    }\n}\n// base64 encoded buffers are about 33% bigger (https://en.wikipedia.org/wiki/Base64)\nconst BASE64_OVERHEAD = 1.33;\n// we could also have used `new Blob([obj]).size`, but it isn't supported in IE9\nexport function byteLength(obj) {\n    if (typeof obj === \"string\") {\n        return utf8Length(obj);\n    }\n    // arraybuffer or blob\n    return Math.ceil((obj.byteLength || obj.size) * BASE64_OVERHEAD);\n}\nfunction utf8Length(str) {\n    let c = 0, length = 0;\n    for (let i = 0, l = str.length; i < l; i++) {\n        c = str.charCodeAt(i);\n        if (c < 0x80) {\n            length += 1;\n        }\n        else if (c < 0x800) {\n            length += 2;\n        }\n        else if (c < 0xd800 || c >= 0xe000) {\n            length += 3;\n        }\n        else {\n            i++;\n            length += 4;\n        }\n    }\n    return length;\n}\n", "// imported from https://github.com/galkn/querystring\n/**\n * Compiles a querystring\n * Returns string representation of the object\n *\n * @param {Object}\n * @api private\n */\nexport function encode(obj) {\n    let str = '';\n    for (let i in obj) {\n        if (obj.hasOwnProperty(i)) {\n            if (str.length)\n                str += '&';\n            str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);\n        }\n    }\n    return str;\n}\n/**\n * Parses a simple querystring into an object\n *\n * @param {String} qs\n * @api private\n */\nexport function decode(qs) {\n    let qry = {};\n    let pairs = qs.split('&');\n    for (let i = 0, l = pairs.length; i < l; i++) {\n        let pair = pairs[i].split('=');\n        qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);\n    }\n    return qry;\n}\n", "import { decodePacket } from \"engine.io-parser\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions } from \"./util.js\";\nimport { encode } from \"./contrib/parseqs.js\";\nexport class TransportError extends Error {\n    constructor(reason, description, context) {\n        super(reason);\n        this.description = description;\n        this.context = context;\n        this.type = \"TransportError\";\n    }\n}\nexport class Transport extends Emitter {\n    /**\n     * Transport abstract constructor.\n     *\n     * @param {Object} opts - options\n     * @protected\n     */\n    constructor(opts) {\n        super();\n        this.writable = false;\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.query = opts.query;\n        this.socket = opts.socket;\n    }\n    /**\n     * Emits an error.\n     *\n     * @param {String} reason\n     * @param description\n     * @param context - the error context\n     * @return {Transport} for chaining\n     * @protected\n     */\n    onError(reason, description, context) {\n        super.emitReserved(\"error\", new TransportError(reason, description, context));\n        return this;\n    }\n    /**\n     * Opens the transport.\n     */\n    open() {\n        this.readyState = \"opening\";\n        this.doOpen();\n        return this;\n    }\n    /**\n     * Closes the transport.\n     */\n    close() {\n        if (this.readyState === \"opening\" || this.readyState === \"open\") {\n            this.doClose();\n            this.onClose();\n        }\n        return this;\n    }\n    /**\n     * Sends multiple packets.\n     *\n     * @param {Array} packets\n     */\n    send(packets) {\n        if (this.readyState === \"open\") {\n            this.write(packets);\n        }\n        else {\n            // this might happen if the transport was silently closed in the beforeunload event handler\n        }\n    }\n    /**\n     * Called upon open\n     *\n     * @protected\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        this.writable = true;\n        super.emitReserved(\"open\");\n    }\n    /**\n     * Called with data.\n     *\n     * @param {String} data\n     * @protected\n     */\n    onData(data) {\n        const packet = decodePacket(data, this.socket.binaryType);\n        this.onPacket(packet);\n    }\n    /**\n     * Called with a decoded packet.\n     *\n     * @protected\n     */\n    onPacket(packet) {\n        super.emitReserved(\"packet\", packet);\n    }\n    /**\n     * Called upon close.\n     *\n     * @protected\n     */\n    onClose(details) {\n        this.readyState = \"closed\";\n        super.emitReserved(\"close\", details);\n    }\n    /**\n     * Pauses the transport, in order not to lose packets during an upgrade.\n     *\n     * @param onPause\n     */\n    pause(onPause) { }\n    createUri(schema, query = {}) {\n        return (schema +\n            \"://\" +\n            this._hostname() +\n            this._port() +\n            this.opts.path +\n            this._query(query));\n    }\n    _hostname() {\n        const hostname = this.opts.hostname;\n        return hostname.indexOf(\":\") === -1 ? hostname : \"[\" + hostname + \"]\";\n    }\n    _port() {\n        if (this.opts.port &&\n            ((this.opts.secure && Number(this.opts.port !== 443)) ||\n                (!this.opts.secure && Number(this.opts.port) !== 80))) {\n            return \":\" + this.opts.port;\n        }\n        else {\n            return \"\";\n        }\n    }\n    _query(query) {\n        const encodedQuery = encode(query);\n        return encodedQuery.length ? \"?\" + encodedQuery : \"\";\n    }\n}\n", "// imported from https://github.com/unshiftio/yeast\n'use strict';\nconst alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split(''), length = 64, map = {};\nlet seed = 0, i = 0, prev;\n/**\n * Return a string representing the specified number.\n *\n * @param {Number} num The number to convert.\n * @returns {String} The string representation of the number.\n * @api public\n */\nexport function encode(num) {\n    let encoded = '';\n    do {\n        encoded = alphabet[num % length] + encoded;\n        num = Math.floor(num / length);\n    } while (num > 0);\n    return encoded;\n}\n/**\n * Return the integer value specified by the given string.\n *\n * @param {String} str The string to convert.\n * @returns {Number} The integer value represented by the string.\n * @api public\n */\nexport function decode(str) {\n    let decoded = 0;\n    for (i = 0; i < str.length; i++) {\n        decoded = decoded * length + map[str.charAt(i)];\n    }\n    return decoded;\n}\n/**\n * Yeast: A tiny growing id generator.\n *\n * @returns {String} A unique id.\n * @api public\n */\nexport function yeast() {\n    const now = encode(+new Date());\n    if (now !== prev)\n        return seed = 0, prev = now;\n    return now + '.' + encode(seed++);\n}\n//\n// Map each character to its index.\n//\nfor (; i < length; i++)\n    map[alphabet[i]] = i;\n", "// imported from https://github.com/component/has-cors\nlet value = false;\ntry {\n    value = typeof XMLHttpRequest !== 'undefined' &&\n        'withCredentials' in new XMLHttpRequest();\n}\ncatch (err) {\n    // if XMLHttp support is disabled in IE then it will throw\n    // when trying to create\n}\nexport const hasCORS = value;\n", "// browser shim for xmlhttprequest module\nimport { hasCORS } from \"../contrib/has-cors.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nexport function XHR(opts) {\n    const xdomain = opts.xdomain;\n    // XMLHttpRequest can be disabled on IE\n    try {\n        if (\"undefined\" !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {\n            return new XMLHttpRequest();\n        }\n    }\n    catch (e) { }\n    if (!xdomain) {\n        try {\n            return new globalThis[[\"Active\"].concat(\"Object\").join(\"X\")](\"Microsoft.XMLHTTP\");\n        }\n        catch (e) { }\n    }\n}\nexport function createCookieJar() { }\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { encodePayload, decodePayload } from \"engine.io-parser\";\nimport { createCookieJar, XHR as XMLHttpRequest, } from \"./xmlhttprequest.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions, pick } from \"../util.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nfunction empty() { }\nconst hasXHR2 = (function () {\n    const xhr = new XMLHttpRequest({\n        xdomain: false,\n    });\n    return null != xhr.responseType;\n})();\nexport class Polling extends Transport {\n    /**\n     * XHR Polling constructor.\n     *\n     * @param {Object} opts\n     * @package\n     */\n    constructor(opts) {\n        super(opts);\n        this.polling = false;\n        if (typeof location !== \"undefined\") {\n            const isSSL = \"https:\" === location.protocol;\n            let port = location.port;\n            // some user agents have empty `location.port`\n            if (!port) {\n                port = isSSL ? \"443\" : \"80\";\n            }\n            this.xd =\n                (typeof location !== \"undefined\" &&\n                    opts.hostname !== location.hostname) ||\n                    port !== opts.port;\n        }\n        /**\n         * XHR supports binary\n         */\n        const forceBase64 = opts && opts.forceBase64;\n        this.supportsBinary = hasXHR2 && !forceBase64;\n        if (this.opts.withCredentials) {\n            this.cookieJar = createCookieJar();\n        }\n    }\n    get name() {\n        return \"polling\";\n    }\n    /**\n     * Opens the socket (triggers polling). We write a PING message to determine\n     * when the transport is open.\n     *\n     * @protected\n     */\n    doOpen() {\n        this.poll();\n    }\n    /**\n     * Pauses polling.\n     *\n     * @param {Function} onPause - callback upon buffers are flushed and transport is paused\n     * @package\n     */\n    pause(onPause) {\n        this.readyState = \"pausing\";\n        const pause = () => {\n            this.readyState = \"paused\";\n            onPause();\n        };\n        if (this.polling || !this.writable) {\n            let total = 0;\n            if (this.polling) {\n                total++;\n                this.once(\"pollComplete\", function () {\n                    --total || pause();\n                });\n            }\n            if (!this.writable) {\n                total++;\n                this.once(\"drain\", function () {\n                    --total || pause();\n                });\n            }\n        }\n        else {\n            pause();\n        }\n    }\n    /**\n     * Starts polling cycle.\n     *\n     * @private\n     */\n    poll() {\n        this.polling = true;\n        this.doPoll();\n        this.emitReserved(\"poll\");\n    }\n    /**\n     * Overloads onData to detect payloads.\n     *\n     * @protected\n     */\n    onData(data) {\n        const callback = (packet) => {\n            // if its the first message we consider the transport open\n            if (\"opening\" === this.readyState && packet.type === \"open\") {\n                this.onOpen();\n            }\n            // if its a close packet, we close the ongoing requests\n            if (\"close\" === packet.type) {\n                this.onClose({ description: \"transport closed by the server\" });\n                return false;\n            }\n            // otherwise bypass onData and handle the message\n            this.onPacket(packet);\n        };\n        // decode payload\n        decodePayload(data, this.socket.binaryType).forEach(callback);\n        // if an event did not trigger closing\n        if (\"closed\" !== this.readyState) {\n            // if we got data we're not polling\n            this.polling = false;\n            this.emitReserved(\"pollComplete\");\n            if (\"open\" === this.readyState) {\n                this.poll();\n            }\n            else {\n            }\n        }\n    }\n    /**\n     * For polling, send a close packet.\n     *\n     * @protected\n     */\n    doClose() {\n        const close = () => {\n            this.write([{ type: \"close\" }]);\n        };\n        if (\"open\" === this.readyState) {\n            close();\n        }\n        else {\n            // in case we're trying to close while\n            // handshaking is in progress (GH-164)\n            this.once(\"open\", close);\n        }\n    }\n    /**\n     * Writes a packets payload.\n     *\n     * @param {Array} packets - data packets\n     * @protected\n     */\n    write(packets) {\n        this.writable = false;\n        encodePayload(packets, (data) => {\n            this.doWrite(data, () => {\n                this.writable = true;\n                this.emitReserved(\"drain\");\n            });\n        });\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"https\" : \"http\";\n        const query = this.query || {};\n        // cache busting is forced\n        if (false !== this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        if (!this.supportsBinary && !query.sid) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Creates a request.\n     *\n     * @param {String} method\n     * @private\n     */\n    request(opts = {}) {\n        Object.assign(opts, { xd: this.xd, cookieJar: this.cookieJar }, this.opts);\n        return new Request(this.uri(), opts);\n    }\n    /**\n     * Sends data.\n     *\n     * @param {String} data to send.\n     * @param {Function} called upon flush.\n     * @private\n     */\n    doWrite(data, fn) {\n        const req = this.request({\n            method: \"POST\",\n            data: data,\n        });\n        req.on(\"success\", fn);\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr post error\", xhrStatus, context);\n        });\n    }\n    /**\n     * Starts a poll cycle.\n     *\n     * @private\n     */\n    doPoll() {\n        const req = this.request();\n        req.on(\"data\", this.onData.bind(this));\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr poll error\", xhrStatus, context);\n        });\n        this.pollXhr = req;\n    }\n}\nexport class Request extends Emitter {\n    /**\n     * Request constructor\n     *\n     * @param {Object} options\n     * @package\n     */\n    constructor(uri, opts) {\n        super();\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.method = opts.method || \"GET\";\n        this.uri = uri;\n        this.data = undefined !== opts.data ? opts.data : null;\n        this.create();\n    }\n    /**\n     * Creates the XHR object and sends the request.\n     *\n     * @private\n     */\n    create() {\n        var _a;\n        const opts = pick(this.opts, \"agent\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"autoUnref\");\n        opts.xdomain = !!this.opts.xd;\n        const xhr = (this.xhr = new XMLHttpRequest(opts));\n        try {\n            xhr.open(this.method, this.uri, true);\n            try {\n                if (this.opts.extraHeaders) {\n                    xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);\n                    for (let i in this.opts.extraHeaders) {\n                        if (this.opts.extraHeaders.hasOwnProperty(i)) {\n                            xhr.setRequestHeader(i, this.opts.extraHeaders[i]);\n                        }\n                    }\n                }\n            }\n            catch (e) { }\n            if (\"POST\" === this.method) {\n                try {\n                    xhr.setRequestHeader(\"Content-type\", \"text/plain;charset=UTF-8\");\n                }\n                catch (e) { }\n            }\n            try {\n                xhr.setRequestHeader(\"Accept\", \"*/*\");\n            }\n            catch (e) { }\n            (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.addCookies(xhr);\n            // ie6 check\n            if (\"withCredentials\" in xhr) {\n                xhr.withCredentials = this.opts.withCredentials;\n            }\n            if (this.opts.requestTimeout) {\n                xhr.timeout = this.opts.requestTimeout;\n            }\n            xhr.onreadystatechange = () => {\n                var _a;\n                if (xhr.readyState === 3) {\n                    (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.parseCookies(xhr);\n                }\n                if (4 !== xhr.readyState)\n                    return;\n                if (200 === xhr.status || 1223 === xhr.status) {\n                    this.onLoad();\n                }\n                else {\n                    // make sure the `error` event handler that's user-set\n                    // does not throw in the same tick and gets caught here\n                    this.setTimeoutFn(() => {\n                        this.onError(typeof xhr.status === \"number\" ? xhr.status : 0);\n                    }, 0);\n                }\n            };\n            xhr.send(this.data);\n        }\n        catch (e) {\n            // Need to defer since .create() is called directly from the constructor\n            // and thus the 'error' event can only be only bound *after* this exception\n            // occurs.  Therefore, also, we cannot throw here at all.\n            this.setTimeoutFn(() => {\n                this.onError(e);\n            }, 0);\n            return;\n        }\n        if (typeof document !== \"undefined\") {\n            this.index = Request.requestsCount++;\n            Request.requests[this.index] = this;\n        }\n    }\n    /**\n     * Called upon error.\n     *\n     * @private\n     */\n    onError(err) {\n        this.emitReserved(\"error\", err, this.xhr);\n        this.cleanup(true);\n    }\n    /**\n     * Cleans up house.\n     *\n     * @private\n     */\n    cleanup(fromError) {\n        if (\"undefined\" === typeof this.xhr || null === this.xhr) {\n            return;\n        }\n        this.xhr.onreadystatechange = empty;\n        if (fromError) {\n            try {\n                this.xhr.abort();\n            }\n            catch (e) { }\n        }\n        if (typeof document !== \"undefined\") {\n            delete Request.requests[this.index];\n        }\n        this.xhr = null;\n    }\n    /**\n     * Called upon load.\n     *\n     * @private\n     */\n    onLoad() {\n        const data = this.xhr.responseText;\n        if (data !== null) {\n            this.emitReserved(\"data\", data);\n            this.emitReserved(\"success\");\n            this.cleanup();\n        }\n    }\n    /**\n     * Aborts the request.\n     *\n     * @package\n     */\n    abort() {\n        this.cleanup();\n    }\n}\nRequest.requestsCount = 0;\nRequest.requests = {};\n/**\n * Aborts pending requests when unloading the window. This is needed to prevent\n * memory leaks (e.g. when using IE) and to ensure that no spurious error is\n * emitted.\n */\nif (typeof document !== \"undefined\") {\n    // @ts-ignore\n    if (typeof attachEvent === \"function\") {\n        // @ts-ignore\n        attachEvent(\"onunload\", unloadHandler);\n    }\n    else if (typeof addEventListener === \"function\") {\n        const terminationEvent = \"onpagehide\" in globalThis ? \"pagehide\" : \"unload\";\n        addEventListener(terminationEvent, unloadHandler, false);\n    }\n}\nfunction unloadHandler() {\n    for (let i in Request.requests) {\n        if (Request.requests.hasOwnProperty(i)) {\n            Request.requests[i].abort();\n        }\n    }\n}\n", "import { globalThisShim as globalThis } from \"../globalThis.js\";\nexport const nextTick = (() => {\n    const isPromiseAvailable = typeof Promise === \"function\" && typeof Promise.resolve === \"function\";\n    if (isPromiseAvailable) {\n        return (cb) => Promise.resolve().then(cb);\n    }\n    else {\n        return (cb, setTimeoutFn) => setTimeoutFn(cb, 0);\n    }\n})();\nexport const WebSocket = globalThis.WebSocket || globalThis.MozWebSocket;\nexport const usingBrowserWebSocket = true;\nexport const defaultBinaryType = \"arraybuffer\";\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { pick } from \"../util.js\";\nimport { nextTick, usingBrowserWebSocket, WebSocket, } from \"./websocket-constructor.js\";\nimport { encodePacket } from \"engine.io-parser\";\n// detect ReactNative environment\nconst isReactNative = typeof navigator !== \"undefined\" &&\n    typeof navigator.product === \"string\" &&\n    navigator.product.toLowerCase() === \"reactnative\";\nexport class WS extends Transport {\n    /**\n     * WebSocket transport constructor.\n     *\n     * @param {Object} opts - connection options\n     * @protected\n     */\n    constructor(opts) {\n        super(opts);\n        this.supportsBinary = !opts.forceBase64;\n    }\n    get name() {\n        return \"websocket\";\n    }\n    doOpen() {\n        if (!this.check()) {\n            // let probe timeout\n            return;\n        }\n        const uri = this.uri();\n        const protocols = this.opts.protocols;\n        // React Native only supports the 'headers' option, and will print a warning if anything else is passed\n        const opts = isReactNative\n            ? {}\n            : pick(this.opts, \"agent\", \"perMessageDeflate\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"localAddress\", \"protocolVersion\", \"origin\", \"maxPayload\", \"family\", \"checkServerIdentity\");\n        if (this.opts.extraHeaders) {\n            opts.headers = this.opts.extraHeaders;\n        }\n        try {\n            this.ws =\n                usingBrowserWebSocket && !isReactNative\n                    ? protocols\n                        ? new WebSocket(uri, protocols)\n                        : new WebSocket(uri)\n                    : new WebSocket(uri, protocols, opts);\n        }\n        catch (err) {\n            return this.emitReserved(\"error\", err);\n        }\n        this.ws.binaryType = this.socket.binaryType;\n        this.addEventListeners();\n    }\n    /**\n     * Adds event listeners to the socket\n     *\n     * @private\n     */\n    addEventListeners() {\n        this.ws.onopen = () => {\n            if (this.opts.autoUnref) {\n                this.ws._socket.unref();\n            }\n            this.onOpen();\n        };\n        this.ws.onclose = (closeEvent) => this.onClose({\n            description: \"websocket connection closed\",\n            context: closeEvent,\n        });\n        this.ws.onmessage = (ev) => this.onData(ev.data);\n        this.ws.onerror = (e) => this.onError(\"websocket error\", e);\n    }\n    write(packets) {\n        this.writable = false;\n        // encodePacket efficient as it uses WS framing\n        // no need for encodePayload\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            encodePacket(packet, this.supportsBinary, (data) => {\n                // always create a new object (GH-437)\n                const opts = {};\n                if (!usingBrowserWebSocket) {\n                    if (packet.options) {\n                        opts.compress = packet.options.compress;\n                    }\n                    if (this.opts.perMessageDeflate) {\n                        const len = \n                        // @ts-ignore\n                        \"string\" === typeof data ? Buffer.byteLength(data) : data.length;\n                        if (len < this.opts.perMessageDeflate.threshold) {\n                            opts.compress = false;\n                        }\n                    }\n                }\n                // Sometimes the websocket has already been closed but the browser didn't\n                // have a chance of informing us about it yet, in that case send will\n                // throw an error\n                try {\n                    if (usingBrowserWebSocket) {\n                        // TypeError is thrown when passing the second argument on Safari\n                        this.ws.send(data);\n                    }\n                    else {\n                        this.ws.send(data, opts);\n                    }\n                }\n                catch (e) {\n                }\n                if (lastPacket) {\n                    // fake drain\n                    // defer to next tick to allow Socket to clear writeBuffer\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        if (typeof this.ws !== \"undefined\") {\n            this.ws.close();\n            this.ws = null;\n        }\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"wss\" : \"ws\";\n        const query = this.query || {};\n        // append timestamp to URI\n        if (this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        // communicate binary support capabilities\n        if (!this.supportsBinary) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Feature detection for WebSocket.\n     *\n     * @return {Boolean} whether this transport is available.\n     * @private\n     */\n    check() {\n        return !!WebSocket;\n    }\n}\n", "import { Transport } from \"../transport.js\";\nimport { nextTick } from \"./websocket-constructor.js\";\nimport { createPacketDecoderStream, createPacketEncoderStream, } from \"engine.io-parser\";\nexport class WT extends Transport {\n    get name() {\n        return \"webtransport\";\n    }\n    doOpen() {\n        // @ts-ignore\n        if (typeof WebTransport !== \"function\") {\n            return;\n        }\n        // @ts-ignore\n        this.transport = new WebTransport(this.createUri(\"https\"), this.opts.transportOptions[this.name]);\n        this.transport.closed\n            .then(() => {\n            this.onClose();\n        })\n            .catch((err) => {\n            this.onError(\"webtransport error\", err);\n        });\n        // note: we could have used async/await, but that would require some additional polyfills\n        this.transport.ready.then(() => {\n            this.transport.createBidirectionalStream().then((stream) => {\n                const decoderStream = createPacketDecoderStream(Number.MAX_SAFE_INTEGER, this.socket.binaryType);\n                const reader = stream.readable.pipeThrough(decoderStream).getReader();\n                const encoderStream = createPacketEncoderStream();\n                encoderStream.readable.pipeTo(stream.writable);\n                this.writer = encoderStream.writable.getWriter();\n                const read = () => {\n                    reader\n                        .read()\n                        .then(({ done, value }) => {\n                        if (done) {\n                            return;\n                        }\n                        this.onPacket(value);\n                        read();\n                    })\n                        .catch((err) => {\n                    });\n                };\n                read();\n                const packet = { type: \"open\" };\n                if (this.query.sid) {\n                    packet.data = `{\"sid\":\"${this.query.sid}\"}`;\n                }\n                this.writer.write(packet).then(() => this.onOpen());\n            });\n        });\n    }\n    write(packets) {\n        this.writable = false;\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            this.writer.write(packet).then(() => {\n                if (lastPacket) {\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        var _a;\n        (_a = this.transport) === null || _a === void 0 ? void 0 : _a.close();\n    }\n}\n", "import { Polling } from \"./polling.js\";\nimport { WS } from \"./websocket.js\";\nimport { WT } from \"./webtransport.js\";\nexport const transports = {\n    websocket: WS,\n    webtransport: WT,\n    polling: Polling,\n};\n", "// imported from https://github.com/galkn/parseuri\n/**\n * Parses a URI\n *\n * Note: we could also have used the built-in URL object, but it isn't supported on all platforms.\n *\n * See:\n * - https://developer.mozilla.org/en-US/docs/Web/API/URL\n * - https://caniuse.com/url\n * - https://www.rfc-editor.org/rfc/rfc3986#appendix-B\n *\n * History of the parse() method:\n * - first commit: https://github.com/socketio/socket.io-client/commit/4ee1d5d94b3906a9c052b459f1a818b15f38f91c\n * - export into its own module: https://github.com/socketio/engine.io-client/commit/de2c561e4564efeb78f1bdb1ba39ef81b2822cb3\n * - reimport: https://github.com/socketio/engine.io-client/commit/df32277c3f6d622eec5ed09f493cae3f3391d242\n *\n * @author Steven Levithan <stevenlevithan.com> (MIT license)\n * @api private\n */\nconst re = /^(?:(?![^:@\\/?#]+:[^:@\\/]*@)(http|https|ws|wss):\\/\\/)?((?:(([^:@\\/?#]*)(?::([^:@\\/?#]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\\/?#]*)(?::(\\d*))?)(((\\/(?:[^?#](?![^?#\\/]*\\.[^?#\\/.]+(?:[?#]|$)))*\\/?)?([^?#\\/]*))(?:\\?([^#]*))?(?:#(.*))?)/;\nconst parts = [\n    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'\n];\nexport function parse(str) {\n    if (str.length > 2000) {\n        throw \"URI too long\";\n    }\n    const src = str, b = str.indexOf('['), e = str.indexOf(']');\n    if (b != -1 && e != -1) {\n        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);\n    }\n    let m = re.exec(str || ''), uri = {}, i = 14;\n    while (i--) {\n        uri[parts[i]] = m[i] || '';\n    }\n    if (b != -1 && e != -1) {\n        uri.source = src;\n        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');\n        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');\n        uri.ipv6uri = true;\n    }\n    uri.pathNames = pathNames(uri, uri['path']);\n    uri.queryKey = queryKey(uri, uri['query']);\n    return uri;\n}\nfunction pathNames(obj, path) {\n    const regx = /\\/{2,9}/g, names = path.replace(regx, \"/\").split(\"/\");\n    if (path.slice(0, 1) == '/' || path.length === 0) {\n        names.splice(0, 1);\n    }\n    if (path.slice(-1) == '/') {\n        names.splice(names.length - 1, 1);\n    }\n    return names;\n}\nfunction queryKey(uri, query) {\n    const data = {};\n    query.replace(/(?:^|&)([^&=]*)=?([^&]*)/g, function ($0, $1, $2) {\n        if ($1) {\n            data[$1] = $2;\n        }\n    });\n    return data;\n}\n", "import { transports } from \"./transports/index.js\";\nimport { installTimerFunctions, byteLength } from \"./util.js\";\nimport { decode } from \"./contrib/parseqs.js\";\nimport { parse } from \"./contrib/parseuri.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { protocol } from \"engine.io-parser\";\nimport { defaultBinaryType } from \"./transports/websocket-constructor.js\";\nexport class Socket extends Emitter {\n    /**\n     * Socket constructor.\n     *\n     * @param {String|Object} uri - uri or options\n     * @param {Object} opts - options\n     */\n    constructor(uri, opts = {}) {\n        super();\n        this.binaryType = defaultBinaryType;\n        this.writeBuffer = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = null;\n        }\n        if (uri) {\n            uri = parse(uri);\n            opts.hostname = uri.host;\n            opts.secure = uri.protocol === \"https\" || uri.protocol === \"wss\";\n            opts.port = uri.port;\n            if (uri.query)\n                opts.query = uri.query;\n        }\n        else if (opts.host) {\n            opts.hostname = parse(opts.host).host;\n        }\n        installTimerFunctions(this, opts);\n        this.secure =\n            null != opts.secure\n                ? opts.secure\n                : typeof location !== \"undefined\" && \"https:\" === location.protocol;\n        if (opts.hostname && !opts.port) {\n            // if no port is specified manually, use the protocol default\n            opts.port = this.secure ? \"443\" : \"80\";\n        }\n        this.hostname =\n            opts.hostname ||\n                (typeof location !== \"undefined\" ? location.hostname : \"localhost\");\n        this.port =\n            opts.port ||\n                (typeof location !== \"undefined\" && location.port\n                    ? location.port\n                    : this.secure\n                        ? \"443\"\n                        : \"80\");\n        this.transports = opts.transports || [\n            \"polling\",\n            \"websocket\",\n            \"webtransport\",\n        ];\n        this.writeBuffer = [];\n        this.prevBufferLen = 0;\n        this.opts = Object.assign({\n            path: \"/engine.io\",\n            agent: false,\n            withCredentials: false,\n            upgrade: true,\n            timestampParam: \"t\",\n            rememberUpgrade: false,\n            addTrailingSlash: true,\n            rejectUnauthorized: true,\n            perMessageDeflate: {\n                threshold: 1024,\n            },\n            transportOptions: {},\n            closeOnBeforeunload: false,\n        }, opts);\n        this.opts.path =\n            this.opts.path.replace(/\\/$/, \"\") +\n                (this.opts.addTrailingSlash ? \"/\" : \"\");\n        if (typeof this.opts.query === \"string\") {\n            this.opts.query = decode(this.opts.query);\n        }\n        // set on handshake\n        this.id = null;\n        this.upgrades = null;\n        this.pingInterval = null;\n        this.pingTimeout = null;\n        // set on heartbeat\n        this.pingTimeoutTimer = null;\n        if (typeof addEventListener === \"function\") {\n            if (this.opts.closeOnBeforeunload) {\n                // Firefox closes the connection when the \"beforeunload\" event is emitted but not Chrome. This event listener\n                // ensures every browser behaves the same (no \"disconnect\" event at the Socket.IO level when the page is\n                // closed/reloaded)\n                this.beforeunloadEventListener = () => {\n                    if (this.transport) {\n                        // silently close the transport\n                        this.transport.removeAllListeners();\n                        this.transport.close();\n                    }\n                };\n                addEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n            }\n            if (this.hostname !== \"localhost\") {\n                this.offlineEventListener = () => {\n                    this.onClose(\"transport close\", {\n                        description: \"network connection lost\",\n                    });\n                };\n                addEventListener(\"offline\", this.offlineEventListener, false);\n            }\n        }\n        this.open();\n    }\n    /**\n     * Creates transport of the given type.\n     *\n     * @param {String} name - transport name\n     * @return {Transport}\n     * @private\n     */\n    createTransport(name) {\n        const query = Object.assign({}, this.opts.query);\n        // append engine.io protocol identifier\n        query.EIO = protocol;\n        // transport name\n        query.transport = name;\n        // session id if we already have one\n        if (this.id)\n            query.sid = this.id;\n        const opts = Object.assign({}, this.opts, {\n            query,\n            socket: this,\n            hostname: this.hostname,\n            secure: this.secure,\n            port: this.port,\n        }, this.opts.transportOptions[name]);\n        return new transports[name](opts);\n    }\n    /**\n     * Initializes transport to use and starts probe.\n     *\n     * @private\n     */\n    open() {\n        let transport;\n        if (this.opts.rememberUpgrade &&\n            Socket.priorWebsocketSuccess &&\n            this.transports.indexOf(\"websocket\") !== -1) {\n            transport = \"websocket\";\n        }\n        else if (0 === this.transports.length) {\n            // Emit error on next tick so it can be listened to\n            this.setTimeoutFn(() => {\n                this.emitReserved(\"error\", \"No transports available\");\n            }, 0);\n            return;\n        }\n        else {\n            transport = this.transports[0];\n        }\n        this.readyState = \"opening\";\n        // Retry with the next transport if the transport is disabled (jsonp: false)\n        try {\n            transport = this.createTransport(transport);\n        }\n        catch (e) {\n            this.transports.shift();\n            this.open();\n            return;\n        }\n        transport.open();\n        this.setTransport(transport);\n    }\n    /**\n     * Sets the current transport. Disables the existing one (if any).\n     *\n     * @private\n     */\n    setTransport(transport) {\n        if (this.transport) {\n            this.transport.removeAllListeners();\n        }\n        // set up transport\n        this.transport = transport;\n        // set up transport listeners\n        transport\n            .on(\"drain\", this.onDrain.bind(this))\n            .on(\"packet\", this.onPacket.bind(this))\n            .on(\"error\", this.onError.bind(this))\n            .on(\"close\", (reason) => this.onClose(\"transport close\", reason));\n    }\n    /**\n     * Probes a transport.\n     *\n     * @param {String} name - transport name\n     * @private\n     */\n    probe(name) {\n        let transport = this.createTransport(name);\n        let failed = false;\n        Socket.priorWebsocketSuccess = false;\n        const onTransportOpen = () => {\n            if (failed)\n                return;\n            transport.send([{ type: \"ping\", data: \"probe\" }]);\n            transport.once(\"packet\", (msg) => {\n                if (failed)\n                    return;\n                if (\"pong\" === msg.type && \"probe\" === msg.data) {\n                    this.upgrading = true;\n                    this.emitReserved(\"upgrading\", transport);\n                    if (!transport)\n                        return;\n                    Socket.priorWebsocketSuccess = \"websocket\" === transport.name;\n                    this.transport.pause(() => {\n                        if (failed)\n                            return;\n                        if (\"closed\" === this.readyState)\n                            return;\n                        cleanup();\n                        this.setTransport(transport);\n                        transport.send([{ type: \"upgrade\" }]);\n                        this.emitReserved(\"upgrade\", transport);\n                        transport = null;\n                        this.upgrading = false;\n                        this.flush();\n                    });\n                }\n                else {\n                    const err = new Error(\"probe error\");\n                    // @ts-ignore\n                    err.transport = transport.name;\n                    this.emitReserved(\"upgradeError\", err);\n                }\n            });\n        };\n        function freezeTransport() {\n            if (failed)\n                return;\n            // Any callback called by transport should be ignored since now\n            failed = true;\n            cleanup();\n            transport.close();\n            transport = null;\n        }\n        // Handle any error that happens while probing\n        const onerror = (err) => {\n            const error = new Error(\"probe error: \" + err);\n            // @ts-ignore\n            error.transport = transport.name;\n            freezeTransport();\n            this.emitReserved(\"upgradeError\", error);\n        };\n        function onTransportClose() {\n            onerror(\"transport closed\");\n        }\n        // When the socket is closed while we're probing\n        function onclose() {\n            onerror(\"socket closed\");\n        }\n        // When the socket is upgraded while we're probing\n        function onupgrade(to) {\n            if (transport && to.name !== transport.name) {\n                freezeTransport();\n            }\n        }\n        // Remove all listeners on the transport and on self\n        const cleanup = () => {\n            transport.removeListener(\"open\", onTransportOpen);\n            transport.removeListener(\"error\", onerror);\n            transport.removeListener(\"close\", onTransportClose);\n            this.off(\"close\", onclose);\n            this.off(\"upgrading\", onupgrade);\n        };\n        transport.once(\"open\", onTransportOpen);\n        transport.once(\"error\", onerror);\n        transport.once(\"close\", onTransportClose);\n        this.once(\"close\", onclose);\n        this.once(\"upgrading\", onupgrade);\n        if (this.upgrades.indexOf(\"webtransport\") !== -1 &&\n            name !== \"webtransport\") {\n            // favor WebTransport\n            this.setTimeoutFn(() => {\n                if (!failed) {\n                    transport.open();\n                }\n            }, 200);\n        }\n        else {\n            transport.open();\n        }\n    }\n    /**\n     * Called when connection is deemed open.\n     *\n     * @private\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        Socket.priorWebsocketSuccess = \"websocket\" === this.transport.name;\n        this.emitReserved(\"open\");\n        this.flush();\n        // we check for `readyState` in case an `open`\n        // listener already closed the socket\n        if (\"open\" === this.readyState && this.opts.upgrade) {\n            let i = 0;\n            const l = this.upgrades.length;\n            for (; i < l; i++) {\n                this.probe(this.upgrades[i]);\n            }\n        }\n    }\n    /**\n     * Handles a packet.\n     *\n     * @private\n     */\n    onPacket(packet) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            this.emitReserved(\"packet\", packet);\n            // Socket is live - any packet counts\n            this.emitReserved(\"heartbeat\");\n            this.resetPingTimeout();\n            switch (packet.type) {\n                case \"open\":\n                    this.onHandshake(JSON.parse(packet.data));\n                    break;\n                case \"ping\":\n                    this.sendPacket(\"pong\");\n                    this.emitReserved(\"ping\");\n                    this.emitReserved(\"pong\");\n                    break;\n                case \"error\":\n                    const err = new Error(\"server error\");\n                    // @ts-ignore\n                    err.code = packet.data;\n                    this.onError(err);\n                    break;\n                case \"message\":\n                    this.emitReserved(\"data\", packet.data);\n                    this.emitReserved(\"message\", packet.data);\n                    break;\n            }\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon handshake completion.\n     *\n     * @param {Object} data - handshake obj\n     * @private\n     */\n    onHandshake(data) {\n        this.emitReserved(\"handshake\", data);\n        this.id = data.sid;\n        this.transport.query.sid = data.sid;\n        this.upgrades = this.filterUpgrades(data.upgrades);\n        this.pingInterval = data.pingInterval;\n        this.pingTimeout = data.pingTimeout;\n        this.maxPayload = data.maxPayload;\n        this.onOpen();\n        // In case open handler closes socket\n        if (\"closed\" === this.readyState)\n            return;\n        this.resetPingTimeout();\n    }\n    /**\n     * Sets and resets ping timeout timer based on server pings.\n     *\n     * @private\n     */\n    resetPingTimeout() {\n        this.clearTimeoutFn(this.pingTimeoutTimer);\n        this.pingTimeoutTimer = this.setTimeoutFn(() => {\n            this.onClose(\"ping timeout\");\n        }, this.pingInterval + this.pingTimeout);\n        if (this.opts.autoUnref) {\n            this.pingTimeoutTimer.unref();\n        }\n    }\n    /**\n     * Called on `drain` event\n     *\n     * @private\n     */\n    onDrain() {\n        this.writeBuffer.splice(0, this.prevBufferLen);\n        // setting prevBufferLen = 0 is very important\n        // for example, when upgrading, upgrade packet is sent over,\n        // and a nonzero prevBufferLen could cause problems on `drain`\n        this.prevBufferLen = 0;\n        if (0 === this.writeBuffer.length) {\n            this.emitReserved(\"drain\");\n        }\n        else {\n            this.flush();\n        }\n    }\n    /**\n     * Flush write buffers.\n     *\n     * @private\n     */\n    flush() {\n        if (\"closed\" !== this.readyState &&\n            this.transport.writable &&\n            !this.upgrading &&\n            this.writeBuffer.length) {\n            const packets = this.getWritablePackets();\n            this.transport.send(packets);\n            // keep track of current length of writeBuffer\n            // splice writeBuffer and callbackBuffer on `drain`\n            this.prevBufferLen = packets.length;\n            this.emitReserved(\"flush\");\n        }\n    }\n    /**\n     * Ensure the encoded size of the writeBuffer is below the maxPayload value sent by the server (only for HTTP\n     * long-polling)\n     *\n     * @private\n     */\n    getWritablePackets() {\n        const shouldCheckPayloadSize = this.maxPayload &&\n            this.transport.name === \"polling\" &&\n            this.writeBuffer.length > 1;\n        if (!shouldCheckPayloadSize) {\n            return this.writeBuffer;\n        }\n        let payloadSize = 1; // first packet type\n        for (let i = 0; i < this.writeBuffer.length; i++) {\n            const data = this.writeBuffer[i].data;\n            if (data) {\n                payloadSize += byteLength(data);\n            }\n            if (i > 0 && payloadSize > this.maxPayload) {\n                return this.writeBuffer.slice(0, i);\n            }\n            payloadSize += 2; // separator + packet type\n        }\n        return this.writeBuffer;\n    }\n    /**\n     * Sends a message.\n     *\n     * @param {String} msg - message.\n     * @param {Object} options.\n     * @param {Function} callback function.\n     * @return {Socket} for chaining.\n     */\n    write(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    send(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param {String} type: packet type.\n     * @param {String} data.\n     * @param {Object} options.\n     * @param {Function} fn - callback function.\n     * @private\n     */\n    sendPacket(type, data, options, fn) {\n        if (\"function\" === typeof data) {\n            fn = data;\n            data = undefined;\n        }\n        if (\"function\" === typeof options) {\n            fn = options;\n            options = null;\n        }\n        if (\"closing\" === this.readyState || \"closed\" === this.readyState) {\n            return;\n        }\n        options = options || {};\n        options.compress = false !== options.compress;\n        const packet = {\n            type: type,\n            data: data,\n            options: options,\n        };\n        this.emitReserved(\"packetCreate\", packet);\n        this.writeBuffer.push(packet);\n        if (fn)\n            this.once(\"flush\", fn);\n        this.flush();\n    }\n    /**\n     * Closes the connection.\n     */\n    close() {\n        const close = () => {\n            this.onClose(\"forced close\");\n            this.transport.close();\n        };\n        const cleanupAndClose = () => {\n            this.off(\"upgrade\", cleanupAndClose);\n            this.off(\"upgradeError\", cleanupAndClose);\n            close();\n        };\n        const waitForUpgrade = () => {\n            // wait for upgrade to finish since we can't send packets while pausing a transport\n            this.once(\"upgrade\", cleanupAndClose);\n            this.once(\"upgradeError\", cleanupAndClose);\n        };\n        if (\"opening\" === this.readyState || \"open\" === this.readyState) {\n            this.readyState = \"closing\";\n            if (this.writeBuffer.length) {\n                this.once(\"drain\", () => {\n                    if (this.upgrading) {\n                        waitForUpgrade();\n                    }\n                    else {\n                        close();\n                    }\n                });\n            }\n            else if (this.upgrading) {\n                waitForUpgrade();\n            }\n            else {\n                close();\n            }\n        }\n        return this;\n    }\n    /**\n     * Called upon transport error\n     *\n     * @private\n     */\n    onError(err) {\n        Socket.priorWebsocketSuccess = false;\n        this.emitReserved(\"error\", err);\n        this.onClose(\"transport error\", err);\n    }\n    /**\n     * Called upon transport close.\n     *\n     * @private\n     */\n    onClose(reason, description) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            // clear timers\n            this.clearTimeoutFn(this.pingTimeoutTimer);\n            // stop event from firing again for transport\n            this.transport.removeAllListeners(\"close\");\n            // ensure transport won't stay open\n            this.transport.close();\n            // ignore further transport communication\n            this.transport.removeAllListeners();\n            if (typeof removeEventListener === \"function\") {\n                removeEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n                removeEventListener(\"offline\", this.offlineEventListener, false);\n            }\n            // set ready state\n            this.readyState = \"closed\";\n            // clear session id\n            this.id = null;\n            // emit close event\n            this.emitReserved(\"close\", reason, description);\n            // clean buffers after, so users can still\n            // grab the buffers on `close` event\n            this.writeBuffer = [];\n            this.prevBufferLen = 0;\n        }\n    }\n    /**\n     * Filters upgrades, returning only those matching client transports.\n     *\n     * @param {Array} upgrades - server upgrades\n     * @private\n     */\n    filterUpgrades(upgrades) {\n        const filteredUpgrades = [];\n        let i = 0;\n        const j = upgrades.length;\n        for (; i < j; i++) {\n            if (~this.transports.indexOf(upgrades[i]))\n                filteredUpgrades.push(upgrades[i]);\n        }\n        return filteredUpgrades;\n    }\n}\nSocket.protocol = protocol;\n", "import { Socket } from \"./socket.js\";\nexport { Socket };\nexport const protocol = Socket.protocol;\nexport { Transport, TransportError } from \"./transport.js\";\nexport { transports } from \"./transports/index.js\";\nexport { installTimerFunctions } from \"./util.js\";\nexport { parse } from \"./contrib/parseuri.js\";\nexport { nextTick } from \"./transports/websocket-constructor.js\";\n", "import { parse } from \"engine.io-client\";\n/**\n * URL parser.\n *\n * @param uri - url\n * @param path - the request path of the connection\n * @param loc - An object meant to mimic window.location.\n *        Defaults to window.location.\n * @public\n */\nexport function url(uri, path = \"\", loc) {\n    let obj = uri;\n    // default to window.location\n    loc = loc || (typeof location !== \"undefined\" && location);\n    if (null == uri)\n        uri = loc.protocol + \"//\" + loc.host;\n    // relative path support\n    if (typeof uri === \"string\") {\n        if (\"/\" === uri.charAt(0)) {\n            if (\"/\" === uri.charAt(1)) {\n                uri = loc.protocol + uri;\n            }\n            else {\n                uri = loc.host + uri;\n            }\n        }\n        if (!/^(https?|wss?):\\/\\//.test(uri)) {\n            if (\"undefined\" !== typeof loc) {\n                uri = loc.protocol + \"//\" + uri;\n            }\n            else {\n                uri = \"https://\" + uri;\n            }\n        }\n        // parse\n        obj = parse(uri);\n    }\n    // make sure we treat `localhost:80` and `localhost` equally\n    if (!obj.port) {\n        if (/^(http|ws)$/.test(obj.protocol)) {\n            obj.port = \"80\";\n        }\n        else if (/^(http|ws)s$/.test(obj.protocol)) {\n            obj.port = \"443\";\n        }\n    }\n    obj.path = obj.path || \"/\";\n    const ipv6 = obj.host.indexOf(\":\") !== -1;\n    const host = ipv6 ? \"[\" + obj.host + \"]\" : obj.host;\n    // define unique id\n    obj.id = obj.protocol + \"://\" + host + \":\" + obj.port + path;\n    // define href\n    obj.href =\n        obj.protocol +\n            \"://\" +\n            host +\n            (loc && loc.port === obj.port ? \"\" : \":\" + obj.port);\n    return obj;\n}\n", "import { Emitter } from \"@socket.io/component-emitter\";\nimport { deconstructPacket, reconstructPacket } from \"./binary.js\";\nimport { isBinary, hasBinary } from \"./is-binary.js\";\n/**\n * These strings must not be used as event names, as they have a special meaning.\n */\nconst RESERVED_EVENTS = [\n    \"connect\",\n    \"connect_error\",\n    \"disconnect\",\n    \"disconnecting\",\n    \"newListener\",\n    \"removeListener\", // used by the Node.js EventEmitter\n];\n/**\n * Protocol version.\n *\n * @public\n */\nexport const protocol = 5;\nexport var PacketType;\n(function (PacketType) {\n    PacketType[PacketType[\"CONNECT\"] = 0] = \"CONNECT\";\n    PacketType[PacketType[\"DISCONNECT\"] = 1] = \"DISCONNECT\";\n    PacketType[PacketType[\"EVENT\"] = 2] = \"EVENT\";\n    PacketType[PacketType[\"ACK\"] = 3] = \"ACK\";\n    PacketType[PacketType[\"CONNECT_ERROR\"] = 4] = \"CONNECT_ERROR\";\n    PacketType[PacketType[\"BINARY_EVENT\"] = 5] = \"BINARY_EVENT\";\n    PacketType[PacketType[\"BINARY_ACK\"] = 6] = \"BINARY_ACK\";\n})(PacketType || (PacketType = {}));\n/**\n * A socket.io Encoder instance\n */\nexport class Encoder {\n    /**\n     * Encoder constructor\n     *\n     * @param {function} replacer - custom replacer to pass down to JSON.parse\n     */\n    constructor(replacer) {\n        this.replacer = replacer;\n    }\n    /**\n     * Encode a packet as a single string if non-binary, or as a\n     * buffer sequence, depending on packet type.\n     *\n     * @param {Object} obj - packet object\n     */\n    encode(obj) {\n        if (obj.type === PacketType.EVENT || obj.type === PacketType.ACK) {\n            if (hasBinary(obj)) {\n                return this.encodeAsBinary({\n                    type: obj.type === PacketType.EVENT\n                        ? PacketType.BINARY_EVENT\n                        : PacketType.BINARY_ACK,\n                    nsp: obj.nsp,\n                    data: obj.data,\n                    id: obj.id,\n                });\n            }\n        }\n        return [this.encodeAsString(obj)];\n    }\n    /**\n     * Encode packet as string.\n     */\n    encodeAsString(obj) {\n        // first is type\n        let str = \"\" + obj.type;\n        // attachments if we have them\n        if (obj.type === PacketType.BINARY_EVENT ||\n            obj.type === PacketType.BINARY_ACK) {\n            str += obj.attachments + \"-\";\n        }\n        // if we have a namespace other than `/`\n        // we append it followed by a comma `,`\n        if (obj.nsp && \"/\" !== obj.nsp) {\n            str += obj.nsp + \",\";\n        }\n        // immediately followed by the id\n        if (null != obj.id) {\n            str += obj.id;\n        }\n        // json data\n        if (null != obj.data) {\n            str += JSON.stringify(obj.data, this.replacer);\n        }\n        return str;\n    }\n    /**\n     * Encode packet as 'buffer sequence' by removing blobs, and\n     * deconstructing packet into object with placeholders and\n     * a list of buffers.\n     */\n    encodeAsBinary(obj) {\n        const deconstruction = deconstructPacket(obj);\n        const pack = this.encodeAsString(deconstruction.packet);\n        const buffers = deconstruction.buffers;\n        buffers.unshift(pack); // add packet info to beginning of data list\n        return buffers; // write all the buffers\n    }\n}\n// see https://stackoverflow.com/questions/8511281/check-if-a-value-is-an-object-in-javascript\nfunction isObject(value) {\n    return Object.prototype.toString.call(value) === \"[object Object]\";\n}\n/**\n * A socket.io Decoder instance\n *\n * @return {Object} decoder\n */\nexport class Decoder extends Emitter {\n    /**\n     * Decoder constructor\n     *\n     * @param {function} reviver - custom reviver to pass down to JSON.stringify\n     */\n    constructor(reviver) {\n        super();\n        this.reviver = reviver;\n    }\n    /**\n     * Decodes an encoded packet string into packet JSON.\n     *\n     * @param {String} obj - encoded packet\n     */\n    add(obj) {\n        let packet;\n        if (typeof obj === \"string\") {\n            if (this.reconstructor) {\n                throw new Error(\"got plaintext data when reconstructing a packet\");\n            }\n            packet = this.decodeString(obj);\n            const isBinaryEvent = packet.type === PacketType.BINARY_EVENT;\n            if (isBinaryEvent || packet.type === PacketType.BINARY_ACK) {\n                packet.type = isBinaryEvent ? PacketType.EVENT : PacketType.ACK;\n                // binary packet's json\n                this.reconstructor = new BinaryReconstructor(packet);\n                // no attachments, labeled binary but no binary data to follow\n                if (packet.attachments === 0) {\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n            else {\n                // non-binary full packet\n                super.emitReserved(\"decoded\", packet);\n            }\n        }\n        else if (isBinary(obj) || obj.base64) {\n            // raw binary data\n            if (!this.reconstructor) {\n                throw new Error(\"got binary data when not reconstructing a packet\");\n            }\n            else {\n                packet = this.reconstructor.takeBinaryData(obj);\n                if (packet) {\n                    // received final buffer\n                    this.reconstructor = null;\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n        }\n        else {\n            throw new Error(\"Unknown type: \" + obj);\n        }\n    }\n    /**\n     * Decode a packet String (JSON data)\n     *\n     * @param {String} str\n     * @return {Object} packet\n     */\n    decodeString(str) {\n        let i = 0;\n        // look up type\n        const p = {\n            type: Number(str.charAt(0)),\n        };\n        if (PacketType[p.type] === undefined) {\n            throw new Error(\"unknown packet type \" + p.type);\n        }\n        // look up attachments if type binary\n        if (p.type === PacketType.BINARY_EVENT ||\n            p.type === PacketType.BINARY_ACK) {\n            const start = i + 1;\n            while (str.charAt(++i) !== \"-\" && i != str.length) { }\n            const buf = str.substring(start, i);\n            if (buf != Number(buf) || str.charAt(i) !== \"-\") {\n                throw new Error(\"Illegal attachments\");\n            }\n            p.attachments = Number(buf);\n        }\n        // look up namespace (if any)\n        if (\"/\" === str.charAt(i + 1)) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (\",\" === c)\n                    break;\n                if (i === str.length)\n                    break;\n            }\n            p.nsp = str.substring(start, i);\n        }\n        else {\n            p.nsp = \"/\";\n        }\n        // look up id\n        const next = str.charAt(i + 1);\n        if (\"\" !== next && Number(next) == next) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (null == c || Number(c) != c) {\n                    --i;\n                    break;\n                }\n                if (i === str.length)\n                    break;\n            }\n            p.id = Number(str.substring(start, i + 1));\n        }\n        // look up json data\n        if (str.charAt(++i)) {\n            const payload = this.tryParse(str.substr(i));\n            if (Decoder.isPayloadValid(p.type, payload)) {\n                p.data = payload;\n            }\n            else {\n                throw new Error(\"invalid payload\");\n            }\n        }\n        return p;\n    }\n    tryParse(str) {\n        try {\n            return JSON.parse(str, this.reviver);\n        }\n        catch (e) {\n            return false;\n        }\n    }\n    static isPayloadValid(type, payload) {\n        switch (type) {\n            case PacketType.CONNECT:\n                return isObject(payload);\n            case PacketType.DISCONNECT:\n                return payload === undefined;\n            case PacketType.CONNECT_ERROR:\n                return typeof payload === \"string\" || isObject(payload);\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                return (Array.isArray(payload) &&\n                    (typeof payload[0] === \"number\" ||\n                        (typeof payload[0] === \"string\" &&\n                            RESERVED_EVENTS.indexOf(payload[0]) === -1)));\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                return Array.isArray(payload);\n        }\n    }\n    /**\n     * Deallocates a parser's resources\n     */\n    destroy() {\n        if (this.reconstructor) {\n            this.reconstructor.finishedReconstruction();\n            this.reconstructor = null;\n        }\n    }\n}\n/**\n * A manager of a binary event's 'buffer sequence'. Should\n * be constructed whenever a packet of type BINARY_EVENT is\n * decoded.\n *\n * @param {Object} packet\n * @return {BinaryReconstructor} initialized reconstructor\n */\nclass BinaryReconstructor {\n    constructor(packet) {\n        this.packet = packet;\n        this.buffers = [];\n        this.reconPack = packet;\n    }\n    /**\n     * Method to be called when binary data received from connection\n     * after a BINARY_EVENT packet.\n     *\n     * @param {Buffer | ArrayBuffer} binData - the raw binary data received\n     * @return {null | Object} returns null if more binary data is expected or\n     *   a reconstructed packet object if all buffers have been received.\n     */\n    takeBinaryData(binData) {\n        this.buffers.push(binData);\n        if (this.buffers.length === this.reconPack.attachments) {\n            // done with buffer list\n            const packet = reconstructPacket(this.reconPack, this.buffers);\n            this.finishedReconstruction();\n            return packet;\n        }\n        return null;\n    }\n    /**\n     * Cleans up binary packet reconstruction variables.\n     */\n    finishedReconstruction() {\n        this.reconPack = null;\n        this.buffers = [];\n    }\n}\n", "const withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nconst isView = (obj) => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj.buffer instanceof ArrayBuffer;\n};\nconst toString = Object.prototype.toString;\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeFile = typeof File === \"function\" ||\n    (typeof File !== \"undefined\" &&\n        toString.call(File) === \"[object FileConstructor]\");\n/**\n * Returns true if obj is a Buffer, an ArrayBuffer, a Blob or a File.\n *\n * @private\n */\nexport function isBinary(obj) {\n    return ((withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj))) ||\n        (withNativeBlob && obj instanceof Blob) ||\n        (withNativeFile && obj instanceof File));\n}\nexport function hasBinary(obj, toJSON) {\n    if (!obj || typeof obj !== \"object\") {\n        return false;\n    }\n    if (Array.isArray(obj)) {\n        for (let i = 0, l = obj.length; i < l; i++) {\n            if (hasBinary(obj[i])) {\n                return true;\n            }\n        }\n        return false;\n    }\n    if (isBinary(obj)) {\n        return true;\n    }\n    if (obj.toJSON &&\n        typeof obj.toJSON === \"function\" &&\n        arguments.length === 1) {\n        return hasBinary(obj.toJSON(), true);\n    }\n    for (const key in obj) {\n        if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {\n            return true;\n        }\n    }\n    return false;\n}\n", "import { isBinary } from \"./is-binary.js\";\n/**\n * Replaces every Buffer | ArrayBuffer | Blob | File in packet with a numbered placeholder.\n *\n * @param {Object} packet - socket.io event packet\n * @return {Object} with deconstructed packet and list of buffers\n * @public\n */\nexport function deconstructPacket(packet) {\n    const buffers = [];\n    const packetData = packet.data;\n    const pack = packet;\n    pack.data = _deconstructPacket(packetData, buffers);\n    pack.attachments = buffers.length; // number of binary 'attachments'\n    return { packet: pack, buffers: buffers };\n}\nfunction _deconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (isBinary(data)) {\n        const placeholder = { _placeholder: true, num: buffers.length };\n        buffers.push(data);\n        return placeholder;\n    }\n    else if (Array.isArray(data)) {\n        const newData = new Array(data.length);\n        for (let i = 0; i < data.length; i++) {\n            newData[i] = _deconstructPacket(data[i], buffers);\n        }\n        return newData;\n    }\n    else if (typeof data === \"object\" && !(data instanceof Date)) {\n        const newData = {};\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                newData[key] = _deconstructPacket(data[key], buffers);\n            }\n        }\n        return newData;\n    }\n    return data;\n}\n/**\n * Reconstructs a binary packet from its placeholder packet and buffers\n *\n * @param {Object} packet - event packet with placeholders\n * @param {Array} buffers - binary buffers to put in placeholder positions\n * @return {Object} reconstructed packet\n * @public\n */\nexport function reconstructPacket(packet, buffers) {\n    packet.data = _reconstructPacket(packet.data, buffers);\n    delete packet.attachments; // no longer useful\n    return packet;\n}\nfunction _reconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (data && data._placeholder === true) {\n        const isIndexValid = typeof data.num === \"number\" &&\n            data.num >= 0 &&\n            data.num < buffers.length;\n        if (isIndexValid) {\n            return buffers[data.num]; // appropriate buffer (should be natural order anyway)\n        }\n        else {\n            throw new Error(\"illegal attachments\");\n        }\n    }\n    else if (Array.isArray(data)) {\n        for (let i = 0; i < data.length; i++) {\n            data[i] = _reconstructPacket(data[i], buffers);\n        }\n    }\n    else if (typeof data === \"object\") {\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                data[key] = _reconstructPacket(data[key], buffers);\n            }\n        }\n    }\n    return data;\n}\n", "export function on(obj, ev, fn) {\n    obj.on(ev, fn);\n    return function subDestroy() {\n        obj.off(ev, fn);\n    };\n}\n", "import { PacketType } from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\n/**\n * Internal events.\n * These events can't be emitted by the user.\n */\nconst RESERVED_EVENTS = Object.freeze({\n    connect: 1,\n    connect_error: 1,\n    disconnect: 1,\n    disconnecting: 1,\n    // EventEmitter reserved events: https://nodejs.org/api/events.html#events_event_newlistener\n    newListener: 1,\n    removeListener: 1,\n});\n/**\n * A Socket is the fundamental class for interacting with the server.\n *\n * A Socket belongs to a certain Namespace (by default /) and uses an underlying {@link Manager} to communicate.\n *\n * @example\n * const socket = io();\n *\n * socket.on(\"connect\", () => {\n *   console.log(\"connected\");\n * });\n *\n * // send an event to the server\n * socket.emit(\"foo\", \"bar\");\n *\n * socket.on(\"foobar\", () => {\n *   // an event was received from the server\n * });\n *\n * // upon disconnection\n * socket.on(\"disconnect\", (reason) => {\n *   console.log(`disconnected due to ${reason}`);\n * });\n */\nexport class Socket extends Emitter {\n    /**\n     * `Socket` constructor.\n     */\n    constructor(io, nsp, opts) {\n        super();\n        /**\n         * Whether the socket is currently connected to the server.\n         *\n         * @example\n         * const socket = io();\n         *\n         * socket.on(\"connect\", () => {\n         *   console.log(socket.connected); // true\n         * });\n         *\n         * socket.on(\"disconnect\", () => {\n         *   console.log(socket.connected); // false\n         * });\n         */\n        this.connected = false;\n        /**\n         * Whether the connection state was recovered after a temporary disconnection. In that case, any missed packets will\n         * be transmitted by the server.\n         */\n        this.recovered = false;\n        /**\n         * Buffer for packets received before the CONNECT packet\n         */\n        this.receiveBuffer = [];\n        /**\n         * Buffer for packets that will be sent once the socket is connected\n         */\n        this.sendBuffer = [];\n        /**\n         * The queue of packets to be sent with retry in case of failure.\n         *\n         * Packets are sent one by one, each waiting for the server acknowledgement, in order to guarantee the delivery order.\n         * @private\n         */\n        this._queue = [];\n        /**\n         * A sequence to generate the ID of the {@link QueuedPacket}.\n         * @private\n         */\n        this._queueSeq = 0;\n        this.ids = 0;\n        this.acks = {};\n        this.flags = {};\n        this.io = io;\n        this.nsp = nsp;\n        if (opts && opts.auth) {\n            this.auth = opts.auth;\n        }\n        this._opts = Object.assign({}, opts);\n        if (this.io._autoConnect)\n            this.open();\n    }\n    /**\n     * Whether the socket is currently disconnected\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"connect\", () => {\n     *   console.log(socket.disconnected); // false\n     * });\n     *\n     * socket.on(\"disconnect\", () => {\n     *   console.log(socket.disconnected); // true\n     * });\n     */\n    get disconnected() {\n        return !this.connected;\n    }\n    /**\n     * Subscribe to open, close and packet events\n     *\n     * @private\n     */\n    subEvents() {\n        if (this.subs)\n            return;\n        const io = this.io;\n        this.subs = [\n            on(io, \"open\", this.onopen.bind(this)),\n            on(io, \"packet\", this.onpacket.bind(this)),\n            on(io, \"error\", this.onerror.bind(this)),\n            on(io, \"close\", this.onclose.bind(this)),\n        ];\n    }\n    /**\n     * Whether the Socket will try to reconnect when its Manager connects or reconnects.\n     *\n     * @example\n     * const socket = io();\n     *\n     * console.log(socket.active); // true\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   if (reason === \"io server disconnect\") {\n     *     // the disconnection was initiated by the server, you need to manually reconnect\n     *     console.log(socket.active); // false\n     *   }\n     *   // else the socket will automatically try to reconnect\n     *   console.log(socket.active); // true\n     * });\n     */\n    get active() {\n        return !!this.subs;\n    }\n    /**\n     * \"Opens\" the socket.\n     *\n     * @example\n     * const socket = io({\n     *   autoConnect: false\n     * });\n     *\n     * socket.connect();\n     */\n    connect() {\n        if (this.connected)\n            return this;\n        this.subEvents();\n        if (!this.io[\"_reconnecting\"])\n            this.io.open(); // ensure open\n        if (\"open\" === this.io._readyState)\n            this.onopen();\n        return this;\n    }\n    /**\n     * Alias for {@link connect()}.\n     */\n    open() {\n        return this.connect();\n    }\n    /**\n     * Sends a `message` event.\n     *\n     * This method mimics the WebSocket.send() method.\n     *\n     * @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send\n     *\n     * @example\n     * socket.send(\"hello\");\n     *\n     * // this is equivalent to\n     * socket.emit(\"message\", \"hello\");\n     *\n     * @return self\n     */\n    send(...args) {\n        args.unshift(\"message\");\n        this.emit.apply(this, args);\n        return this;\n    }\n    /**\n     * Override `emit`.\n     * If the event is in `events`, it's emitted normally.\n     *\n     * @example\n     * socket.emit(\"hello\", \"world\");\n     *\n     * // all serializable datastructures are supported (no need to call JSON.stringify)\n     * socket.emit(\"hello\", 1, \"2\", { 3: [\"4\"], 5: Uint8Array.from([6]) });\n     *\n     * // with an acknowledgement from the server\n     * socket.emit(\"hello\", \"world\", (val) => {\n     *   // ...\n     * });\n     *\n     * @return self\n     */\n    emit(ev, ...args) {\n        if (RESERVED_EVENTS.hasOwnProperty(ev)) {\n            throw new Error('\"' + ev.toString() + '\" is a reserved event name');\n        }\n        args.unshift(ev);\n        if (this._opts.retries && !this.flags.fromQueue && !this.flags.volatile) {\n            this._addToQueue(args);\n            return this;\n        }\n        const packet = {\n            type: PacketType.EVENT,\n            data: args,\n        };\n        packet.options = {};\n        packet.options.compress = this.flags.compress !== false;\n        // event ack callback\n        if (\"function\" === typeof args[args.length - 1]) {\n            const id = this.ids++;\n            const ack = args.pop();\n            this._registerAckCallback(id, ack);\n            packet.id = id;\n        }\n        const isTransportWritable = this.io.engine &&\n            this.io.engine.transport &&\n            this.io.engine.transport.writable;\n        const discardPacket = this.flags.volatile && (!isTransportWritable || !this.connected);\n        if (discardPacket) {\n        }\n        else if (this.connected) {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        }\n        else {\n            this.sendBuffer.push(packet);\n        }\n        this.flags = {};\n        return this;\n    }\n    /**\n     * @private\n     */\n    _registerAckCallback(id, ack) {\n        var _a;\n        const timeout = (_a = this.flags.timeout) !== null && _a !== void 0 ? _a : this._opts.ackTimeout;\n        if (timeout === undefined) {\n            this.acks[id] = ack;\n            return;\n        }\n        // @ts-ignore\n        const timer = this.io.setTimeoutFn(() => {\n            delete this.acks[id];\n            for (let i = 0; i < this.sendBuffer.length; i++) {\n                if (this.sendBuffer[i].id === id) {\n                    this.sendBuffer.splice(i, 1);\n                }\n            }\n            ack.call(this, new Error(\"operation has timed out\"));\n        }, timeout);\n        this.acks[id] = (...args) => {\n            // @ts-ignore\n            this.io.clearTimeoutFn(timer);\n            ack.apply(this, [null, ...args]);\n        };\n    }\n    /**\n     * Emits an event and waits for an acknowledgement\n     *\n     * @example\n     * // without timeout\n     * const response = await socket.emitWithAck(\"hello\", \"world\");\n     *\n     * // with a specific timeout\n     * try {\n     *   const response = await socket.timeout(1000).emitWithAck(\"hello\", \"world\");\n     * } catch (err) {\n     *   // the server did not acknowledge the event in the given delay\n     * }\n     *\n     * @return a Promise that will be fulfilled when the server acknowledges the event\n     */\n    emitWithAck(ev, ...args) {\n        // the timeout flag is optional\n        const withErr = this.flags.timeout !== undefined || this._opts.ackTimeout !== undefined;\n        return new Promise((resolve, reject) => {\n            args.push((arg1, arg2) => {\n                if (withErr) {\n                    return arg1 ? reject(arg1) : resolve(arg2);\n                }\n                else {\n                    return resolve(arg1);\n                }\n            });\n            this.emit(ev, ...args);\n        });\n    }\n    /**\n     * Add the packet to the queue.\n     * @param args\n     * @private\n     */\n    _addToQueue(args) {\n        let ack;\n        if (typeof args[args.length - 1] === \"function\") {\n            ack = args.pop();\n        }\n        const packet = {\n            id: this._queueSeq++,\n            tryCount: 0,\n            pending: false,\n            args,\n            flags: Object.assign({ fromQueue: true }, this.flags),\n        };\n        args.push((err, ...responseArgs) => {\n            if (packet !== this._queue[0]) {\n                // the packet has already been acknowledged\n                return;\n            }\n            const hasError = err !== null;\n            if (hasError) {\n                if (packet.tryCount > this._opts.retries) {\n                    this._queue.shift();\n                    if (ack) {\n                        ack(err);\n                    }\n                }\n            }\n            else {\n                this._queue.shift();\n                if (ack) {\n                    ack(null, ...responseArgs);\n                }\n            }\n            packet.pending = false;\n            return this._drainQueue();\n        });\n        this._queue.push(packet);\n        this._drainQueue();\n    }\n    /**\n     * Send the first packet of the queue, and wait for an acknowledgement from the server.\n     * @param force - whether to resend a packet that has not been acknowledged yet\n     *\n     * @private\n     */\n    _drainQueue(force = false) {\n        if (!this.connected || this._queue.length === 0) {\n            return;\n        }\n        const packet = this._queue[0];\n        if (packet.pending && !force) {\n            return;\n        }\n        packet.pending = true;\n        packet.tryCount++;\n        this.flags = packet.flags;\n        this.emit.apply(this, packet.args);\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param packet\n     * @private\n     */\n    packet(packet) {\n        packet.nsp = this.nsp;\n        this.io._packet(packet);\n    }\n    /**\n     * Called upon engine `open`.\n     *\n     * @private\n     */\n    onopen() {\n        if (typeof this.auth == \"function\") {\n            this.auth((data) => {\n                this._sendConnectPacket(data);\n            });\n        }\n        else {\n            this._sendConnectPacket(this.auth);\n        }\n    }\n    /**\n     * Sends a CONNECT packet to initiate the Socket.IO session.\n     *\n     * @param data\n     * @private\n     */\n    _sendConnectPacket(data) {\n        this.packet({\n            type: PacketType.CONNECT,\n            data: this._pid\n                ? Object.assign({ pid: this._pid, offset: this._lastOffset }, data)\n                : data,\n        });\n    }\n    /**\n     * Called upon engine or manager `error`.\n     *\n     * @param err\n     * @private\n     */\n    onerror(err) {\n        if (!this.connected) {\n            this.emitReserved(\"connect_error\", err);\n        }\n    }\n    /**\n     * Called upon engine `close`.\n     *\n     * @param reason\n     * @param description\n     * @private\n     */\n    onclose(reason, description) {\n        this.connected = false;\n        delete this.id;\n        this.emitReserved(\"disconnect\", reason, description);\n    }\n    /**\n     * Called with socket packet.\n     *\n     * @param packet\n     * @private\n     */\n    onpacket(packet) {\n        const sameNamespace = packet.nsp === this.nsp;\n        if (!sameNamespace)\n            return;\n        switch (packet.type) {\n            case PacketType.CONNECT:\n                if (packet.data && packet.data.sid) {\n                    this.onconnect(packet.data.sid, packet.data.pid);\n                }\n                else {\n                    this.emitReserved(\"connect_error\", new Error(\"It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)\"));\n                }\n                break;\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                this.onevent(packet);\n                break;\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                this.onack(packet);\n                break;\n            case PacketType.DISCONNECT:\n                this.ondisconnect();\n                break;\n            case PacketType.CONNECT_ERROR:\n                this.destroy();\n                const err = new Error(packet.data.message);\n                // @ts-ignore\n                err.data = packet.data.data;\n                this.emitReserved(\"connect_error\", err);\n                break;\n        }\n    }\n    /**\n     * Called upon a server event.\n     *\n     * @param packet\n     * @private\n     */\n    onevent(packet) {\n        const args = packet.data || [];\n        if (null != packet.id) {\n            args.push(this.ack(packet.id));\n        }\n        if (this.connected) {\n            this.emitEvent(args);\n        }\n        else {\n            this.receiveBuffer.push(Object.freeze(args));\n        }\n    }\n    emitEvent(args) {\n        if (this._anyListeners && this._anyListeners.length) {\n            const listeners = this._anyListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, args);\n            }\n        }\n        super.emit.apply(this, args);\n        if (this._pid && args.length && typeof args[args.length - 1] === \"string\") {\n            this._lastOffset = args[args.length - 1];\n        }\n    }\n    /**\n     * Produces an ack callback to emit with an event.\n     *\n     * @private\n     */\n    ack(id) {\n        const self = this;\n        let sent = false;\n        return function (...args) {\n            // prevent double callbacks\n            if (sent)\n                return;\n            sent = true;\n            self.packet({\n                type: PacketType.ACK,\n                id: id,\n                data: args,\n            });\n        };\n    }\n    /**\n     * Called upon a server acknowlegement.\n     *\n     * @param packet\n     * @private\n     */\n    onack(packet) {\n        const ack = this.acks[packet.id];\n        if (\"function\" === typeof ack) {\n            ack.apply(this, packet.data);\n            delete this.acks[packet.id];\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon server connect.\n     *\n     * @private\n     */\n    onconnect(id, pid) {\n        this.id = id;\n        this.recovered = pid && this._pid === pid;\n        this._pid = pid; // defined only if connection state recovery is enabled\n        this.connected = true;\n        this.emitBuffered();\n        this.emitReserved(\"connect\");\n        this._drainQueue(true);\n    }\n    /**\n     * Emit buffered events (received and emitted).\n     *\n     * @private\n     */\n    emitBuffered() {\n        this.receiveBuffer.forEach((args) => this.emitEvent(args));\n        this.receiveBuffer = [];\n        this.sendBuffer.forEach((packet) => {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        });\n        this.sendBuffer = [];\n    }\n    /**\n     * Called upon server disconnect.\n     *\n     * @private\n     */\n    ondisconnect() {\n        this.destroy();\n        this.onclose(\"io server disconnect\");\n    }\n    /**\n     * Called upon forced client/server side disconnections,\n     * this method ensures the manager stops tracking us and\n     * that reconnections don't get triggered for this.\n     *\n     * @private\n     */\n    destroy() {\n        if (this.subs) {\n            // clean subscriptions to avoid reconnections\n            this.subs.forEach((subDestroy) => subDestroy());\n            this.subs = undefined;\n        }\n        this.io[\"_destroy\"](this);\n    }\n    /**\n     * Disconnects the socket manually. In that case, the socket will not try to reconnect.\n     *\n     * If this is the last active Socket instance of the {@link Manager}, the low-level connection will be closed.\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   // console.log(reason); prints \"io client disconnect\"\n     * });\n     *\n     * socket.disconnect();\n     *\n     * @return self\n     */\n    disconnect() {\n        if (this.connected) {\n            this.packet({ type: PacketType.DISCONNECT });\n        }\n        // remove socket from pool\n        this.destroy();\n        if (this.connected) {\n            // fire events\n            this.onclose(\"io client disconnect\");\n        }\n        return this;\n    }\n    /**\n     * Alias for {@link disconnect()}.\n     *\n     * @return self\n     */\n    close() {\n        return this.disconnect();\n    }\n    /**\n     * Sets the compress flag.\n     *\n     * @example\n     * socket.compress(false).emit(\"hello\");\n     *\n     * @param compress - if `true`, compresses the sending data\n     * @return self\n     */\n    compress(compress) {\n        this.flags.compress = compress;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the event message will be dropped when this socket is not\n     * ready to send messages.\n     *\n     * @example\n     * socket.volatile.emit(\"hello\"); // the server may or may not receive it\n     *\n     * @returns self\n     */\n    get volatile() {\n        this.flags.volatile = true;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the callback will be called with an error when the\n     * given number of milliseconds have elapsed without an acknowledgement from the server:\n     *\n     * @example\n     * socket.timeout(5000).emit(\"my-event\", (err) => {\n     *   if (err) {\n     *     // the server did not acknowledge the event in the given delay\n     *   }\n     * });\n     *\n     * @returns self\n     */\n    timeout(timeout) {\n        this.flags.timeout = timeout;\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * @example\n     * socket.onAny((event, ...args) => {\n     *   console.log(`got ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * @example\n     * socket.prependAny((event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * }\n     *\n     * socket.onAny(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAny(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAny();\n     *\n     * @param listener\n     */\n    offAny(listener) {\n        if (!this._anyListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAny() {\n        return this._anyListeners || [];\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.onAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.prependAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * }\n     *\n     * socket.onAnyOutgoing(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAnyOutgoing(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAnyOutgoing();\n     *\n     * @param [listener] - the catch-all listener (optional)\n     */\n    offAnyOutgoing(listener) {\n        if (!this._anyOutgoingListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyOutgoingListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyOutgoingListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAnyOutgoing() {\n        return this._anyOutgoingListeners || [];\n    }\n    /**\n     * Notify the listeners for each packet sent\n     *\n     * @param packet\n     *\n     * @private\n     */\n    notifyOutgoingListeners(packet) {\n        if (this._anyOutgoingListeners && this._anyOutgoingListeners.length) {\n            const listeners = this._anyOutgoingListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, packet.data);\n            }\n        }\n    }\n}\n", "/**\n * Initialize backoff timer with `opts`.\n *\n * - `min` initial timeout in milliseconds [100]\n * - `max` max timeout [10000]\n * - `jitter` [0]\n * - `factor` [2]\n *\n * @param {Object} opts\n * @api public\n */\nexport function Backoff(opts) {\n    opts = opts || {};\n    this.ms = opts.min || 100;\n    this.max = opts.max || 10000;\n    this.factor = opts.factor || 2;\n    this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;\n    this.attempts = 0;\n}\n/**\n * Return the backoff duration.\n *\n * @return {Number}\n * @api public\n */\nBackoff.prototype.duration = function () {\n    var ms = this.ms * Math.pow(this.factor, this.attempts++);\n    if (this.jitter) {\n        var rand = Math.random();\n        var deviation = Math.floor(rand * this.jitter * ms);\n        ms = (Math.floor(rand * 10) & 1) == 0 ? ms - deviation : ms + deviation;\n    }\n    return Math.min(ms, this.max) | 0;\n};\n/**\n * Reset the number of attempts.\n *\n * @api public\n */\nBackoff.prototype.reset = function () {\n    this.attempts = 0;\n};\n/**\n * Set the minimum duration\n *\n * @api public\n */\nBackoff.prototype.setMin = function (min) {\n    this.ms = min;\n};\n/**\n * Set the maximum duration\n *\n * @api public\n */\nBackoff.prototype.setMax = function (max) {\n    this.max = max;\n};\n/**\n * Set the jitter\n *\n * @api public\n */\nBackoff.prototype.setJitter = function (jitter) {\n    this.jitter = jitter;\n};\n", "import { Socket as Engine, installTimerFunctions, nextTick, } from \"engine.io-client\";\nimport { Socket } from \"./socket.js\";\nimport * as parser from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Backoff } from \"./contrib/backo2.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\nexport class Manager extends Emitter {\n    constructor(uri, opts) {\n        var _a;\n        super();\n        this.nsps = {};\n        this.subs = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = undefined;\n        }\n        opts = opts || {};\n        opts.path = opts.path || \"/socket.io\";\n        this.opts = opts;\n        installTimerFunctions(this, opts);\n        this.reconnection(opts.reconnection !== false);\n        this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);\n        this.reconnectionDelay(opts.reconnectionDelay || 1000);\n        this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);\n        this.randomizationFactor((_a = opts.randomizationFactor) !== null && _a !== void 0 ? _a : 0.5);\n        this.backoff = new Backoff({\n            min: this.reconnectionDelay(),\n            max: this.reconnectionDelayMax(),\n            jitter: this.randomizationFactor(),\n        });\n        this.timeout(null == opts.timeout ? 20000 : opts.timeout);\n        this._readyState = \"closed\";\n        this.uri = uri;\n        const _parser = opts.parser || parser;\n        this.encoder = new _parser.Encoder();\n        this.decoder = new _parser.Decoder();\n        this._autoConnect = opts.autoConnect !== false;\n        if (this._autoConnect)\n            this.open();\n    }\n    reconnection(v) {\n        if (!arguments.length)\n            return this._reconnection;\n        this._reconnection = !!v;\n        return this;\n    }\n    reconnectionAttempts(v) {\n        if (v === undefined)\n            return this._reconnectionAttempts;\n        this._reconnectionAttempts = v;\n        return this;\n    }\n    reconnectionDelay(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelay;\n        this._reconnectionDelay = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMin(v);\n        return this;\n    }\n    randomizationFactor(v) {\n        var _a;\n        if (v === undefined)\n            return this._randomizationFactor;\n        this._randomizationFactor = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setJitter(v);\n        return this;\n    }\n    reconnectionDelayMax(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelayMax;\n        this._reconnectionDelayMax = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMax(v);\n        return this;\n    }\n    timeout(v) {\n        if (!arguments.length)\n            return this._timeout;\n        this._timeout = v;\n        return this;\n    }\n    /**\n     * Starts trying to reconnect if reconnection is enabled and we have not\n     * started reconnecting yet\n     *\n     * @private\n     */\n    maybeReconnectOnOpen() {\n        // Only try to reconnect if it's the first time we're connecting\n        if (!this._reconnecting &&\n            this._reconnection &&\n            this.backoff.attempts === 0) {\n            // keeps reconnection from firing twice for the same reconnection loop\n            this.reconnect();\n        }\n    }\n    /**\n     * Sets the current transport `socket`.\n     *\n     * @param {Function} fn - optional, callback\n     * @return self\n     * @public\n     */\n    open(fn) {\n        if (~this._readyState.indexOf(\"open\"))\n            return this;\n        this.engine = new Engine(this.uri, this.opts);\n        const socket = this.engine;\n        const self = this;\n        this._readyState = \"opening\";\n        this.skipReconnect = false;\n        // emit `open`\n        const openSubDestroy = on(socket, \"open\", function () {\n            self.onopen();\n            fn && fn();\n        });\n        const onError = (err) => {\n            this.cleanup();\n            this._readyState = \"closed\";\n            this.emitReserved(\"error\", err);\n            if (fn) {\n                fn(err);\n            }\n            else {\n                // Only do this if there is no fn to handle the error\n                this.maybeReconnectOnOpen();\n            }\n        };\n        // emit `error`\n        const errorSub = on(socket, \"error\", onError);\n        if (false !== this._timeout) {\n            const timeout = this._timeout;\n            // set timer\n            const timer = this.setTimeoutFn(() => {\n                openSubDestroy();\n                onError(new Error(\"timeout\"));\n                socket.close();\n   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on(this.decoder, \"decoded\", this.ondecoded.bind(this)));\n    }\n    /**\n     * Called upon a ping.\n     *\n     * @private\n     */\n    onping() {\n        this.emitReserved(\"ping\");\n    }\n    /**\n     * Called with data.\n     *\n     * @private\n     */\n    ondata(data) {\n        try {\n            this.decoder.add(data);\n        }\n        catch (e) {\n            this.onclose(\"parse error\", e);\n        }\n    }\n    /**\n     * Called when parser fully decodes a packet.\n     *\n     * @private\n     */\n    ondecoded(packet) {\n        // the nextTick call prevents an exception in a user-provided event listener from triggering a disconnection due to a \"parse error\"\n        nextTick(() => {\n            this.emitReserved(\"packet\", packet);\n        }, this.setTimeoutFn);\n    }\n    /**\n     * Called upon socket error.\n     *\n     * @private\n     */\n    onerror(err) {\n        this.emitReserved(\"error\", err);\n    }\n    /**\n     * Creates a new socket for the given `nsp`.\n     *\n     * @return {Socket}\n     * @public\n     */\n    socket(nsp, opts) {\n        let socket = this.nsps[nsp];\n        if (!socket) {\n            socket = new Socket(this, nsp, opts);\n            this.nsps[nsp] = socket;\n        }\n        else if (this._autoConnect && !socket.active) {\n            socket.connect();\n        }\n        return socket;\n    }\n    /**\n     * Called upon a socket close.\n     *\n     * @param socket\n     * @private\n     */\n    _destroy(socket) {\n        const nsps = Object.keys(this.nsps);\n        for (const nsp of nsps) {\n            const socket = this.nsps[nsp];\n            if (socket.active) {\n                return;\n            }\n        }\n        this._close();\n    }\n    /**\n     * Writes a packet.\n     *\n     * @param packet\n     * @private\n     */\n    _packet(packet) {\n        const encodedPackets = this.encoder.encode(packet);\n        for (let i = 0; i < encodedPackets.length; i++) {\n            this.engine.write(encodedPackets[i], packet.options);\n        }\n    }\n    /**\n     * Clean up transport subscriptions and packet buffer.\n     *\n     * @private\n     */\n    cleanup() {\n        this.subs.forEach((subDestroy) => subDestroy());\n        this.subs.length = 0;\n        this.decoder.destroy();\n    }\n    /**\n     * Close the current socket.\n     *\n     * @private\n     */\n    _close() {\n        this.skipReconnect = true;\n        this._reconnecting = false;\n        this.onclose(\"forced close\");\n        if (this.engine)\n            this.engine.close();\n    }\n    /**\n     * Alias for close()\n     *\n     * @private\n     */\n    disconnect() {\n        return this._close();\n    }\n    /**\n     * Called upon engine close.\n     *\n     * @private\n     */\n    onclose(reason, description) {\n        this.cleanup();\n        this.backoff.reset();\n        this._readyState = \"closed\";\n        this.emitReserved(\"close\", reason, description);\n        if (this._reconnection && !this.skipReconnect) {\n            this.reconnect();\n        }\n    }\n    /**\n     * Attempt a reconnection.\n     *\n     * @private\n     */\n    reconnect() {\n        if (this._reconnecting || this.skipReconnect)\n            return this;\n        const self = this;\n        if (this.backoff.attempts >= this._reconnectionAttempts) {\n            this.backoff.reset();\n            this.emitReserved(\"reconnect_failed\");\n            this._reconnecting = false;\n        }\n        else {\n            const delay = this.backoff.duration();\n            this._reconnecting = true;\n            const timer = this.setTimeoutFn(() => {\n                if (self.skipReconnect)\n                    return;\n                this.emitReserved(\"reconnect_attempt\", self.backoff.attempts);\n                // check again for the case socket closed in above events\n                if (self.skipReconnect)\n                    return;\n                self.open((err) => {\n                    if (err) {\n                        self._reconnecting = false;\n                        self.reconnect();\n                        this.emitReserved(\"reconnect_error\", err);\n                    }\n                    else {\n                        self.onreconnect();\n                    }\n                });\n            }, delay);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n    }\n    /**\n     * Called upon successful reconnect.\n     *\n     * @private\n     */\n    onreconnect() {\n        const attempt = this.backoff.attempts;\n        this._reconnecting = false;\n        this.backoff.reset();\n        this.emitReserved(\"reconnect\", attempt);\n    }\n}\n", "import { url } from \"./url.js\";\nimport { Manager } from \"./manager.js\";\nimport { Socket } from \"./socket.js\";\n/**\n * Managers cache.\n */\nconst cache = {};\nfunction lookup(uri, opts) {\n    if (typeof uri === \"object\") {\n        opts = uri;\n        uri = undefined;\n    }\n    opts = opts || {};\n    const parsed = url(uri, opts.path || \"/socket.io\");\n    const source = parsed.source;\n    const id = parsed.id;\n    const path = parsed.path;\n    const sameNamespace = cache[id] && path in cache[id][\"nsps\"];\n    const newConnection = opts.forceNew ||\n        opts[\"force new connection\"] ||\n        false === opts.multiplex ||\n        sameNamespace;\n    let io;\n    if (newConnection) {\n        io = new Manager(source, opts);\n    }\n    else {\n        if (!cache[id]) {\n            cache[id] = new Manager(source, opts);\n        }\n        io = cache[id];\n    }\n    if (parsed.query && !opts.query) {\n        opts.query = parsed.queryKey;\n    }\n    return io.socket(parsed.path, opts);\n}\n// so that \"lookup\" can be used both as a function (e.g. `io(...)`) and as a\n// namespace (e.g. `io.connect(...)`), for backward compatibility\nObject.assign(lookup, {\n    Manager,\n    Socket,\n    io: lookup,\n    connect: lookup,\n});\n/**\n * Protocol version.\n *\n * @public\n */\nexport { protocol } from \"socket.io-parser\";\n/**\n * Expose constructors for standalone build.\n *\n * @public\n */\nexport { Manager, Socket, lookup as io, lookup as connect, lookup as default, };\n"],
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+  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\n// Namespaces - See https://stackoverflow.com/a/52572048/1309986\n// const NAMESPACES = {\n//     svg: 'http://www.w3.org/2000/svg',\n//     html: 'http://www.w3.org/1999/xhtml',\n//     xml: 'http://www.w3.org/XML/1998/namespace',\n//     xlink: 'http://www.w3.org/1999/xlink',\n//     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n// }\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    //#region ---- Internal Methods ----\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                if (attrib === 'class' && Array.isArray(comp.attributes[attrib])) comp.attributes[attrib].join(' ')\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n    } // --- end of _uiManager ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    //#endregion ---- -------- ----\n    //#region ---- External Methods ----\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {HTMLElement|null} Selected HTML element or null\n     */\n    $(cssSelector) {\n        /** @type {*} Some kind of HTML element */\n        let el = document.querySelector(cssSelector)\n\n        if (!el) {\n            Ui.log(1, 'Uib:$', `No element found for CSS selector ${cssSelector}`)()\n            return null\n        }\n\n        if ( el.nodeName === 'TEMPLATE' ) {\n            el = el.content.firstElementChild\n            if (!el) {\n                Ui.log(0, 'Uib:$', `Template selected for CSS selector ${cssSelector} but it is empty`)()\n                return null\n            }\n        }\n\n        return el\n    }\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {string} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {HTMLElement[]} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$(cssSelector) {\n        return Array.from(document.querySelectorAll(cssSelector))\n    }\n\n    /** Add 1 or several class names to an element\n     * @param {string|string[]} classNames Single or array of classnames\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    addClass(classNames, el) {\n        if (!Array.isArray(classNames)) classNames = [classNames]\n        if (el) el.classList.add(...classNames)\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n                if (attrib.name === 'class') thisOut.classes = Array.from(node.classList)\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    /** Remove All, 1 or more class names from an element\n     * @param {undefined|null|\"\"|string|string[]} classNames Single or array of classnames. If undefined, \"\" or null, remove all classes\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    removeClass(classNames, el) {\n        if (!classNames) {\n            el.removeAttribute('class')\n            return\n        }\n        if (!Array.isArray(classNames)) classNames = [classNames]\n        if (el) el.classList.remove(...classNames)\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += `<div>${msg.payload}</div>`\n        if (ui.content) content += `<div>${ui.content}</div>`\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        console.log(this)\n        this._uiManager(msg)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName) {\n                if (propName === 'classes') propName = 'class'\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    const p = {}\n                    // Nightmare of different object types in a DOM Element!\n                    const cType = prop.constructor.name.toLowerCase()\n                    if (cType === 'namednodemap') {\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                    } else if (!cType.includes('map')) { // Ordinary properties (not a mapped type)\n                        p[propName] = prop\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                    }\n                    if (p.class) p.classes = Array.from(node.classList)\n                    out.push(p)\n                }\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    /** External alias for _uiComposeComponent\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    //#endregion ---- -------- ----\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n", "/* This is the Front-End JavaScript for uibuilder  in HTML Module form\n  It provides a number of global objects that can be used in your own javascript.\n  see the docs folder `./docs/uibuilder.module.md` for details of how to use this fully.\n\n  Please use the default index.js file for your own code and leave this as-is.\n  See Uib._meta for client version string\n\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n//#region --- Type Defs --- //\n/**\n * A string containing HTML markup\n * @typedef {string} html\n */\n//#endregion --- Type Defs --- //\n\n//#region --- We need the Socket.IO & ui libraries & the uib-var component  --- //\n// @ts-ignore - Note: Only works when using esbuild to bundle\nimport Ui from './ui'\nimport UibVar from '../components/uib-var'\nimport io from 'socket.io-client'\n\n// TODO - Maybe - check if already loaded as window['io']?\n// TODO - Maybe - Should this be moved to inside the class - would know the httpRoot then so less need to guess?\n// TODO           Or, could pull the cookie processing out of the class\n// const ioLocns = [ // Likely locations of the Socket.IO client library\n//     // Where it should normally be\n//     '../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and haven't changed httpNodeRoot\n//     '/uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and have changed httpNodeRoot\n//     '../../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Direct from the Internet - last ditch attempt\n//     'https://cdn.jsdelivr.net/npm/socket.io-client/+esm',\n// ]\n\n// let io\n// for (const locn of ioLocns) {\n//     try {\n//         ({ io } = await import(locn))\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library found at '${locn}'`)()\n//     } catch (e) {\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library not found at '${locn}'`)()\n//     }\n//     if (io) break\n// }\n// if (!io) log('error', 'uibuilder.module.js', 'Socket.IO client failed to load')()\n//#endregion -------- -------- -------- //\n\nconst version = '6.8.0-src'\n\n// TODO Add option to allow log events to be sent back to Node-RED as uib ctrl msgs\n//#region --- Module-level utility functions --- //\n\n// @ts-ignore Detect whether the loaded library is minified or not\nconst isMinified = !(/param/).test(function (param) { }) // eslint-disable-line no-unused-vars\n\n//#region --- print/console - debugging output functions --- //\n\n/** Default log level - Error & Warn */\nlet logLevel = isMinified ? 0 : 1  // When using minified lib, assume production and only log errors otherwise also log warn\n// function changeLogLevel(level) {\n//     logLevel = level\n//     console.trace = logLevel < 4 ? function(){} : console.trace\n//     console.debug = logLevel < 2 ? function(){} : console.debug\n//     if ( logLevel < 1 ) {\n//         console.log = console.group = console.groupEnd =  function(){}\n//     }\n// }\n\n// Experimental\nconst LOG_STYLES = {\n    // 0\n    error: {\n        css: 'background: red; color: black;',\n        txtCss: 'color: red; ',\n        pre: '\u26D4 ',\n        console: 'error',  // or trace\n    },\n    // 1\n    warn: {\n        css: 'background: darkorange; color: black;',\n        txtCss: 'color: darkorange; ',\n        pre: '\u26A0 ',\n        console: 'warn',\n    },\n    // 2\n    info: {\n        css: 'background: aqua; color: black;',\n        txtCss: 'color: aqua;',\n        pre: '\u2757 ',\n        console: 'info',\n    },\n    // 3\n    log: {\n        css: 'background: grey; color: yellow;',\n        txtCss: 'color: grey;',\n        pre: '',\n        console: 'log',\n    },\n    // 4\n    debug: {\n        css: 'background: chartreuse; color: black;',\n        txtCss: 'color: chartreuse;',\n        pre: '',\n        console: 'debug',\n    },\n    // 5\n    trace: {\n        css: 'background: indigo; color: yellow;',\n        txtCss: 'color: hotpink;',\n        pre: '',\n        console: 'log',\n    },\n\n    names: ['error', 'warn', 'info', 'log', 'debug', 'trace'],\n    reset: 'color: inherit;',\n    head: 'font-weight:bold; font-style:italic;',\n    level: 'font-weight:bold; border-radius: 3px; padding: 2px 5px; display:inline-block;',\n}\n/** Custom logging. e.g. log(2, 'here:there', 'jiminy', {fred:'jim'})()\n * @returns {Function} Log function @example log(2, 'here:there', 'jiminy', {fred:'jim'})()\n */\nfunction log() {\n    // Get the args\n    const args = Array.prototype.slice.call(arguments)\n\n    // 1st arg is the log level/type\n    let level = args.shift()\n    let strLevel\n    switch (level) {\n        case 'trace':\n        case 5: {\n            if (logLevel < 5) break\n            level = 5 // make sure level is numeric\n            strLevel = 'trace'\n            break\n        }\n\n        case 'debug':\n        case 4: {\n            if (logLevel < 4) break\n            level = 4\n            strLevel = 'debug'\n            break\n        }\n\n        case 'log':\n        case 3: {\n            if (logLevel < 3) break\n            level = 3\n            strLevel = 'log'\n            break\n        }\n\n        case 'info':\n        case '':\n        case 2: {\n            if (logLevel < 2) break\n            level = 2\n            strLevel = 'info'\n            break\n        }\n\n        case 'warn':\n        case 1: {\n            if (logLevel < 1) break\n            level = 1\n            strLevel = 'warn'\n            break\n        }\n\n        case 'error':\n        case 'err':\n        case 0: {\n            if (logLevel < 0) break\n            level = 0\n            strLevel = 'error'\n            break\n        }\n\n        default: {\n            level = -1\n            break\n        }\n\n    }\n\n    // If set to something unknown, no log output\n    if (strLevel === undefined) return function () { }\n\n    // 2nd arg is a heading that will be colour highlighted\n    const head = args.shift()\n\n    // Bind back to console.log (could use console[strLevel] but some levels ignore some formatting, use console.xxx directly or dedicated fn)\n    return Function.prototype.bind.call(\n        console[LOG_STYLES[strLevel].console],\n        console,\n        `%c${LOG_STYLES[strLevel].pre}${strLevel}%c [${head}]`, `${LOG_STYLES.level} ${LOG_STYLES[strLevel].css}`, `${LOG_STYLES.head} ${LOG_STYLES[strLevel].txtCss}`,\n        ...args\n    )\n}\n//#endregion\n\n/** A hack to dynamically load a remote module and wait until it is loaded\n * @param {string} url The URL of the module to load\n * @returns {object|null} Either the result object or null (if the load fails)\n */\n// function loadModule(url) { // eslint-disable-line no-unused-vars\n//     let done\n\n//     import(url)\n//         .then(res => {\n//             log('debug', '>> then >>', res)()\n//             done = res\n//         })\n//         .catch(err => {\n//             console.error(`[uibuilder:loadModule] Could not load module ${url}`, err)\n//             done = null\n//         })\n\n//     //  eslint-disable-next-line no-empty\n//     while (!done) { } // eslint-disable-line no-unmodified-loop-condition\n\n//     return done\n// }\n\n/** Makes a null or non-object into an object\n * If not null, moves \"thing\" to {payload:thing}\n *\n * @param {*} thing Thing to check\n * @param {string} [property='payload'] property that \"thing\" is moved to if not null and not an object\n * @returns {!object} _\n */\nfunction makeMeAnObject(thing, property) {\n    if (!property) property = 'payload'\n    if (typeof property !== 'string') {\n        log('warn', 'uibuilderfe:makeMeAnObject', `WARNING: property parameter must be a string and not: ${typeof property}`)()\n        property = 'payload'\n    }\n    let out = {}\n    if ( thing !== null && thing.constructor.name === 'Object' ) {\n        out = thing\n    } else if (thing !== null) {\n        out[property] = thing\n    }\n    return out\n} // --- End of make me an object --- //\n\n/** Joins all arguments as a URL string\n * see http://stackoverflow.com/a/28592528/3016654\n * since v1.0.10, fixed potential double // issue\n * arguments {string} URL fragments\n * @returns {string} _\n */\nfunction urlJoin() {\n    const paths = Array.prototype.slice.call(arguments)\n    const url = '/' + paths.map(function (e) {\n        return e.replace(/^\\/|\\/$/g, '')\n    })\n        .filter(function (e) {\n            return e\n        })\n        .join('/')\n    return url.replace('//', '/')\n} // ---- End of urlJoin ---- //\n\n/** Convert JSON to Syntax Highlighted HTML\n * @param {object} json A JSON/JavaScript Object\n * @returns {html} Object reformatted as highlighted HTML\n */\nfunction syntaxHighlight(json) {\n    if (json === undefined) {\n        json = '<span class=\"undefined\">undefined</span>'\n    } else {\n        try {\n            json = JSON.stringify(json, undefined, 4)\n            // json = json.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;') // eslint-disable-line newline-per-chained-call\n            json = json.replace(/(\"(\\\\u[a-zA-Z0-9]{4}|\\\\[^u]|[^\\\\\"])*\"(\\s*:)?|\\b(true|false|null)\\b|-?\\d+(?:\\.\\d*)?(?:[eE][+-]?\\d+)?)/g, function (match) { // eslint-disable-line prefer-named-capture-group\n                let cls = 'number'\n                if ((/^\"/).test(match)) {\n                    if ((/:$/).test(match)) {\n                        cls = 'key'\n                    } else {\n                        cls = 'string'\n                    }\n                } else if ((/true|false/).test(match)) {\n                    cls = 'boolean'\n                } else if ((/null/).test(match)) {\n                    cls = 'null'\n                }\n                return `<span class=\"${cls}\">${match}</span>`\n            })\n        } catch (e) {\n            json = `Syntax Highlight ERROR: ${e.message}`\n        }\n    }\n    return json\n}\n\n/** msg._ui handling functions */\nconst _ui = new Ui(window, log, syntaxHighlight)\n\n//#endregion --- Module-level utility functions --- //\n\n/** Define and export the Uib class - note that an instance of the class is also exported in the wrap-up\n * @typicalname uibuilder\n */\nexport const Uib = class Uib {\n\n    //#region --- Static variables ---\n    static _meta = {\n        version: version,\n        type: 'module',\n        displayName: 'uibuilder',\n    }\n    //#endregion ---- ---- ---- ----\n\n    //#region private class vars\n\n    // How many times has the loaded instance connected to Socket.IO (detect if not a new load?)\n    connectedNum = 0\n    // event listener callbacks by property name\n    // #events = {}\n    // Socket.IO channel names\n    _ioChannels = { control: 'uiBuilderControl', client: 'uiBuilderClient', server: 'uiBuilder' }\n    /** setInterval holder for pings @type {function|undefined} */\n    #pingInterval\n    // onChange event callbacks\n    #propChangeCallbacks = {}\n    // onTopic event callbacks\n    #msgRecvdByTopicCallbacks = {}\n    // Is Vue available?\n    isVue = false\n    // What version? Set in startup if Vue is loaded. Won't always work\n    vueVersion = undefined\n    /** setInterval id holder for Socket.IO checkConnect\n     * @type {number|null}\n     */\n    #timerid = null\n    // Holds the reference ID for the internal msg change event handler so that it can be cancelled\n    #MsgHandler\n    // Placeholder for io.socket - can't make a # var until # fns allowed in all browsers\n    _socket\n    // Placeholder for an observer that watches the whole DOM for changes - can't make a # var until # fns allowed in all browsers\n    _htmlObserver\n    // Has showMsg been turned on?\n    #isShowMsg = false\n    // Has showStatus been turned on?\n    #isShowStatus = false\n    // If true, URL hash changes send msg back to node-red. Controlled by watchUrlHash()\n    #sendUrlHash = false\n    // Externally accessible command functions (NB: Case must match) - remember to update _uibCommand for new commands\n    #extCommands = [\n        'elementExists', 'get', 'getManagedVarList', 'getWatchedVars', 'htmlSend', 'include',\n        'navigate', 'scrollTo', 'set', 'showMsg', 'showStatus', 'uiGet', 'uiWatch', 'watchUrlHash',\n    ]\n\n    /** @type {{[key: string]: string}} Managed uibuilder variables */\n    #managedVars = {}\n\n    // What status variables to show via showStatus()\n    #showStatus = {\n        online: { 'var': 'online', 'label': 'Online?', 'description': 'Is the browser online?', },\n        ioConnected: { 'var': 'ioConnected', 'label': 'Socket.IO connected?', 'description': 'Is Socket.IO connected?', },\n        connectedNum: { 'var': 'connectedNum', 'label': '# reconnections', 'description': 'How many times has Socket.IO had to reconnect since last page load?', },\n\n        clientId: { 'var': 'clientId', 'label': 'Client ID', 'description': 'Static client unique id set in Node-RED. Only changes when browser is restarted.', },\n        tabId: { 'var': 'tabId', 'label': 'Browser tab ID', 'description': 'Static unique id for the browser\\'s current tab', },\n        cookies: { 'var': 'cookies', 'label': 'Cookies', 'description': 'Cookies set in Node-RED', },\n        httpNodeRoot: { 'var': 'httpNodeRoot', 'label': 'httpNodeRoot', 'description': 'From Node-RED\\' settings.js, affects URL\\'s. May be wrong for pages in sub-folders', },\n        pageName: { 'var': 'pageName', 'label': 'Page name', 'description': 'Actual name of this page', },\n\n        ioNamespace: { 'var': 'ioNamespace', 'label': 'SIO namespace', 'description': 'Socket.IO namespace - unique to each uibuilder node instance', },\n        // ioPath: { 'var': 'ioPath', 'label': 'SIO path', 'description': '', }, // no longer needed in the modern client\n        socketError: { 'var': 'socketError', 'label': 'Socket error', 'description': 'If the Socket.IO connection has failed, says why', },\n\n        msgsSent: { 'var': 'msgsSent', 'label': '# msgs sent', 'description': 'How many standard messages have been sent to Node-RED?', },\n        msgsReceived: { 'var': 'msgsReceived', 'label': '# msgs received', 'description': 'How many standard messages have been received from Node-RED?', },\n        msgsSentCtrl: { 'var': 'msgsSentCtrl', 'label': '# control msgs sent', 'description': 'How many control messages have been sent to Node-RED?', },\n        msgsCtrlReceived: { 'var': 'msgsCtrlReceived', 'label': '# control msgs received', 'description': 'How many control messages have been received from Node-RED?', },\n        originator: { 'var': 'originator', 'label': 'Node Originator', 'description': 'If the last msg from Node-RED was from a `uib-sender` node, this will be its node id so that messasges can be returned to it', },\n        topic: { 'var': 'topic', 'label': 'Default topic', 'description': 'Optional default topic to be included in outgoing standard messages', },\n\n        started: { 'var': 'started', 'label': 'Has uibuilder client started?', 'description': 'Whether `uibuilder.start()` ran successfully. This should self-run and should not need to be run manually', },\n        version: { 'var': 'version', 'label': 'uibuilder client version', 'description': 'The version of the loaded uibuilder client library', },\n        serverTimeOffset: { 'var': 'serverTimeOffset', 'label': 'Server time offset (Hrs)', 'description': 'The number of hours difference between the Node-red server and the client', },\n    }\n\n    // Track ui observers (see uiWatch)\n    #uiObservers = {}\n\n    //#endregion\n\n    //#region public class vars\n\n    // TODO Move to proper getters\n    //#region ---- Externally read-only (via .get method) ---- //\n    // version - moved to _meta\n    /** Client ID set by uibuilder on connect */\n    clientId = ''\n    /** The collection of cookies provided by uibuilder */\n    cookies = {}\n    /** Copy of last control msg object received from sever */\n    ctrlMsg = {}\n    /** Is Socket.IO client connected to the server? */\n    ioConnected = false\n    // Is the browser tab containing this page visible or not?\n    isVisible = false\n    // Remember the last page (re)load/navigation type: navigate, reload, back_forward, prerender\n    lastNavType = ''\n    /** Last std msg received from Node-RED */\n    msg = {}\n    /** number of messages sent to server since page load */\n    msgsSent = 0\n    /** number of messages received from server since page load */\n    msgsReceived = 0\n    /** number of control messages sent to server since page load */\n    msgsSentCtrl = 0\n    /** number of control messages received from server since page load */\n    msgsCtrlReceived = 0\n    /** Is the client online or offline? */\n    online = navigator.onLine\n    /** last control msg object sent via uibuilder.send() @since v2.0.0-dev3 */\n    sentCtrlMsg = {}\n    /** last std msg object sent via uibuilder.send() */\n    sentMsg = {}\n    /** placeholder to track time offset from server, see fn socket.on(ioChannels.server ...) */\n    serverTimeOffset = null\n    /** placeholder for a socket error message */\n    socketError = null\n    // tab identifier from session storage\n    tabId = ''\n    // Actual name of current page (set in constructor)\n    pageName = null\n    // Is the DOMPurify library loaded? Updated in start()\n    purify = false\n    // Is the Markdown-IT library loaded? Updated in start()\n    markdown = false\n    // Current URL hash. Initial set is done from start->watchHashChanges via a set to make it watched\n    urlHash = location.hash\n    //#endregion ---- ---- ---- ---- //\n\n    // TODO Move to proper getters/setters\n    //#region ---- Externally Writable (via .set method, read via .get method) ---- //\n    /** Default originator node id - empty string by default\n     * @type {string}\n     */\n    originator = ''\n    /** Default topic - used by send if set and no topic provided\n     * @type {(string|undefined)}\n     */\n    topic = undefined\n    //#endregion ---- ---- ---- ---- //\n\n    //#region ---- These are unlikely to be needed externally: ----\n    autoSendReady = true\n    httpNodeRoot = '' // Node-RED setting (via cookie)\n    ioNamespace = ''\n    ioPath = ''\n    retryFactor = 1.5       // starting delay factor for subsequent reconnect attempts\n    retryMs = 2000          // starting retry ms period for manual socket reconnections workaround\n    storePrefix = 'uib_'    // Prefix for all uib-related localStorage\n    started = false\n    // NOTE: These can only change when a client (re)connects\n    socketOptions = {\n        path: this.ioPath,\n        transports: ['polling', 'websocket'],\n        // Using callback so that they are updated automatically on (re)connect\n        // Only put things in here that will be valid for a websocket connected session\n        auth: (cb) => {\n            cb({ // eslint-disable-line n/no-callback-literal\n                clientVersion: version,\n                clientId: this.clientId,\n                pathName: window.location.pathname,\n                urlParams: Object.fromEntries(new URLSearchParams(location.search)),\n                pageName: this.pageName,\n                tabId: this.tabId,\n                lastNavType: this.lastNavType,\n                connectedNum: ++this.connectedNum,\n                // Used to calculate the diff between the server and client connection timestamps - reported if >1 minute\n                browserConnectTimestamp: (new Date()).toISOString(),\n            })\n        },\n        transportOptions: {\n            // Can only set headers when polling\n            polling: {\n                extraHeaders: {\n                    'x-clientid': `${Uib._meta.displayName}; ${Uib._meta.type}; ${Uib._meta.version}; ${this.clientId}`,\n                }\n            },\n        },\n    }\n    //#endregion -- not external --\n\n    //#endregion --- End of variables ---\n\n    //#region ------- Getters and Setters ------- //\n\n    // Change logging level dynamically (affects both console. and print.)\n    set logLevel(level) { logLevel = level; console.log('%c\u2757 info%c [logLevel]', `${LOG_STYLES.level} ${LOG_STYLES.info.css}`, `${LOG_STYLES.head} ${LOG_STYLES.info.txtCss}`, `Set to ${level} (${LOG_STYLES.names[level]})`) /* changeLogLevel(level)*/ }\n    get logLevel() { return logLevel }\n\n    get meta() { return Uib._meta }\n\n    /** Function to set uibuilder properties to a new value - works on any property except _* or #*\n     * Also triggers any event listeners.\n     * Example: this.set('msg', {topic:'uibuilder', payload:42});\n     * @param {string} prop Any uibuilder property who's name does not start with a _ or #\n     * @param {*} val The set value of the property or a string declaring that a protected property cannot be changed\n     * @param {boolean} [store] If true, the variable is also saved to the browser localStorage if possible\n     * @param {boolean} [autoload] If true & store is true, on load, uib will try to restore the value from the store automatically\n     * @returns {*} Input value\n     */\n    set(prop, val, store = false, autoload = false) {\n        // Check for excluded properties - we don't want people to set these\n        // if (this.#excludedSet.indexOf(prop) !== -1) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:set', `Cannot use set() on protected property \"${prop}\"`)()\n            return `Cannot use set() on protected property \"${prop}\"`\n        }\n\n        // We must add the var to the uibuilder object\n        this[prop] = val\n\n        // Keep track of all managed variables\n        this.#managedVars[prop] = prop\n\n        // If requested, save to store\n        if (store === true) this.setStore(prop, val, autoload)\n\n        log('trace', 'Uib:set', `prop set - prop: ${prop}, val: `, val, ` store: ${store}, autoload: ${autoload}`)()\n\n        // Trigger this prop's event callbacks (listeners which are set by this.onChange)\n        // this.emit(prop, val)\n\n        // trigger an event on the prop name, pass both the name and value to the event details\n        this._dispatchCustomEvent('uibuilder:propertyChanged', { 'prop': prop, 'value': val, 'store': store, 'autoload': autoload })\n\n        return val\n    }\n\n    /** Function to get the value of a uibuilder property\n     * Example: uibuilder.get('msg')\n     * @param {string} prop The name of the property to get as long as it does not start with a _ or #\n     * @returns {*|undefined} The current value of the property\n     */\n    get(prop) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:get', `Cannot use get() on protected property \"${prop}\"`)()\n            return\n        }\n        if (prop === 'version') return Uib._meta.version\n        if (prop === 'msgsCtrl') return this.msgsCtrlReceived\n        if (prop === 'reconnections') return this.connectedNum\n        if (this[prop] === undefined) {\n            log('warn', 'Uib:get', `get() - property \"${prop}\" is undefined`)()\n        }\n        return this[prop]\n    }\n\n    /** Write to localStorage if possible. console error output if can't write\n     * Also uses this.storePrefix\n     * @example\n     *   uibuilder.setStore('fred', 42)\n     *   console.log(uibuilder.getStore('fred'))\n     * @param {string} id localStorage var name to be used (prefixed with 'uib_')\n     * @param {*} value value to write to localstore\n     * @param {boolean} [autoload] If true, on load, uib will try to restore the value from the store\n     * @returns {boolean} True if succeeded else false\n     */\n    setStore(id, value, autoload = false) {\n        let autoVars = {}\n        if (autoload === true) {\n            try {\n                autoVars = this.getStore('_uibAutoloadVars') || {}\n            } catch (e) {}\n        }\n        if (typeof value === 'object') {\n            try {\n                value = JSON.stringify(value)\n            } catch (e) {\n                log('error', 'Uib:setStore', 'Cannot stringify object, not storing. ', e)()\n                return false\n            }\n        }\n        try {\n            localStorage.setItem(this.storePrefix + id, value)\n            if (autoload) {\n                autoVars[id] = id\n                try {\n                    localStorage.setItem(this.storePrefix + '_uibAutoloadVars', JSON.stringify(autoVars))\n                } catch (e) {\n                    log('error', 'Uib:setStore', 'Cannot save autoload list. ', e)()\n                }\n            }\n            this._dispatchCustomEvent('uibuilder:propertyStored', { 'prop': id, 'value': value, 'autoload': autoload })\n            return true\n        } catch (e) {\n            log('error', 'Uib:setStore', 'Cannot write to localStorage. ', e)()\n            return false\n        }\n    } // --- end of setStore --- //\n\n    /** Attempt to get and re-hydrate a key value from localStorage\n     * Note that all uib storage is automatically prefixed using this.storePrefix\n     * @param {*} id The key of the value to attempt to retrieve\n     * @returns {*|null|undefined} The re-hydrated value of the key or null if key not found, undefined on error\n     */\n    getStore(id) {\n        try {\n            // @ts-ignore\n            return JSON.parse(localStorage.getItem(this.storePrefix + id))\n        } catch (e) { }\n        try {\n            return localStorage.getItem(this.storePrefix + id)\n        } catch (e) {\n            return undefined\n        }\n    }\n\n    /** Remove a given id from the uib keys in localStorage\n     * @param {*} id The key to remove\n     */\n    removeStore(id) {\n        try {\n            localStorage.removeItem(this.storePrefix + id)\n        } catch (e) { }\n    }\n\n    /** Returns a list of uibuilder properties (variables) that can be watched with onChange\n     * @returns {{[key: string]: string}} List of uibuilder managed variables\n     */\n    getManagedVarList() {\n        return this.#managedVars\n    }\n\n    getWatchedVars() {\n        return Object.keys(this.#propChangeCallbacks)\n    }\n\n    //#endregion ------- -------- ------- //\n\n    //#region ------- Our own event handling system ---------- //\n\n    // TODO Add option to send event details back to Node-RED as uib ctrl msg\n    /** Standard fn to create a custom event with details & dispatch it\n     * @param {string} title The event name\n     * @param {*} details Any details to pass to event output\n     */\n    _dispatchCustomEvent(title, details) {\n        const event = new CustomEvent(title, { detail: details })\n        document.dispatchEvent(event)\n    }\n\n    // See the this.#propChangeCallbacks & msgRecvdByTopicCallbacks private vars\n\n    /** Register on-change event listeners for uibuilder tracked properties\n     * Make it possible to register a function that will be run when the property changes.\n     * Note that you can create listeners for non-existant properties\n     * @example: uibuilder.onChange('msg', (msg) => { console.log('uibuilder.msg changed! It is now: ', msg) })\n     *\n     * @param {string} prop The property of uibuilder that we want to monitor\n     * @param {Function} callback The function that will run when the property changes, parameter is the new value of the property after change\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelChange if you need to remove a listener\n     */\n    onChange(prop, callback) {\n        // Note: Property does not have to exist yet\n\n        // console.debug(`[Uib:onchange] pushing new callback (event listener) for property: ${prop}`)\n\n        // Create a new array or add to the array of callback functions for the property in the events object\n        // if (this.#events[prop]) {\n        //     this.#events[prop].push(callback)\n        // } else {\n        //     this.#events[prop] = [callback]\n        // }\n\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#propChangeCallbacks[prop]) this.#propChangeCallbacks[prop] = { _nextRef: 1 }\n        else this.#propChangeCallbacks[prop]._nextRef++\n\n        const nextCbRef = this.#propChangeCallbacks[prop]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const propChangeCallback = this.#propChangeCallbacks[prop][nextCbRef] = function propChangeCallback(e) {\n            // If the prop name matches the 1st arg in the onChange fn:\n            if (prop === e.detail.prop) {\n                const value = e.detail.value\n                // console.warn('[Uib:onChange:evt] uibuilder:propertyChanged. ', e.detail)\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(value, value)\n            }\n        }\n\n        document.addEventListener('uibuilder:propertyChanged', propChangeCallback)\n\n        return nextCbRef\n    } // ---- End of onChange() ---- //\n\n    cancelChange(prop, cbRef) {\n        document.removeEventListener('uibuilder:propertyChanged', this.#propChangeCallbacks[prop][cbRef])\n        delete this.#propChangeCallbacks[prop][cbRef]\n        // this.#propChangeCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Register a change callback for a specific msg.topic\n     * Similar to onChange but more convenient if needing to differentiate by msg.topic.\n     * @example: let otRef = uibuilder.onTopic('mytopic', function(){ console.log('Received a msg with msg.topic=`mytopic`. msg: ', this) })\n     * To cancel a change listener: uibuilder.cancelTopic('mytopic', otRef)\n     *\n     * @param {string} topic The msg.topic we want to listen for\n     * @param {Function} callback The function that will run when an appropriate msg is received. `this` inside the callback as well as the cb's single argument is the received msg.\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelTopic if you need to remove a listener\n     */\n    onTopic(topic, callback) {\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#msgRecvdByTopicCallbacks[topic]) this.#msgRecvdByTopicCallbacks[topic] = { _nextRef: 1 }\n        else this.#msgRecvdByTopicCallbacks[topic]._nextRef++\n\n        const nextCbRef = this.#msgRecvdByTopicCallbacks[topic]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const msgRecvdEvtCallback = this.#msgRecvdByTopicCallbacks[topic][nextCbRef] = function msgRecvdEvtCallback(e) {\n            const msg = e.detail\n            // console.log('[Uib:onTopic:evt] uibuilder:stdMsgReceived where topic matches. ', e.detail)\n            if (msg.topic === topic) {\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(msg, msg)\n            }\n        }\n\n        document.addEventListener('uibuilder:stdMsgReceived', msgRecvdEvtCallback)\n\n        return nextCbRef\n    }\n\n    cancelTopic(topic, cbRef) {\n        document.removeEventListener('uibuilder:stdMsgReceived', this.#msgRecvdByTopicCallbacks[topic][cbRef])\n        delete this.#msgRecvdByTopicCallbacks[topic][cbRef]\n        // this.#msgRecvdCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Trigger event listener for a given property\n     * Called when uibuilder.set is used\n     *\n     * @param {*} prop The property for which to run the callback functions\n     * arguments: Additional arguments contain the value to pass to the event callback (e.g. newValue)\n     */\n    // emit(prop) {\n    //     var evt = this.#events[prop]\n    //     if (!evt) {\n    //         return\n    //     }\n    //     var args = Array.prototype.slice.call(arguments, 1)\n    //     for (var i = 0; i < evt.length; i++) {\n    //         evt[i].apply(this, args)\n    //     }\n    //     log('trace', 'Uib:emit', `${evt.length} listeners run for prop ${prop} `)()\n    // }\n\n    /** Forcibly removes all event listeners from the events array\n     * Use if you need to re-initialise the environment\n     */\n    // clearEventListeners() {\n    //     this.#events = []\n    // } // ---- End of clearEventListeners() ---- //\n\n    /** Clear a single property event listeners\n     * @param {string} prop The property of uibuilder for which we want to clear the event listener\n     */\n    // clearListener(prop) {\n    //     if (this.#events[prop]) delete this.#events[prop]\n    // }\n\n    //#endregion ---------- End of event handling system ---------- //\n\n    //#region ------- General Utility Functions -------- //\n\n    /** Check supplied msg from server for a timestamp - if received, work out & store difference to browser time\n     * @param {object} receivedMsg A message object recieved from Node-RED\n     * @returns {void} Updates self.serverTimeOffset if different to previous value\n     */\n    _checkTimestamp(receivedMsg) {\n        if (Object.prototype.hasOwnProperty.call(receivedMsg, 'serverTimestamp')) {\n            const serverTimestamp = new Date(receivedMsg.serverTimestamp)\n            // @ts-ignore\n            const offset = Math.round(((new Date()) - serverTimestamp) / 3600000) // in ms /3.6m to get hours\n            if (offset !== this.serverTimeOffset) {\n                log('trace', `Uib:checkTimestamp:${this._ioChannels.server} (server)`, `Offset changed to: ${offset} from: ${this.serverTimeOffset}`)()\n                this.set('serverTimeOffset', offset)\n            }\n        }\n    }\n\n    /** Set the default originator. Set to '' to ignore. Used with uib-sender.\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    setOriginator(originator = '') {\n        this.set('originator', originator)\n    } // ---- End of setOriginator ---- //\n\n    /** HTTP Ping/Keep-alive - makes a call back to uibuilder's ExpressJS server and receives a 204 response\n     * Can be used to keep sessions alive.\n     * @example\n     *   uibuilder.setPing(2000) // repeat every 2 sec. Re-issue with ping(0) to turn off repeat.\n     *   uibuilder.onChange('ping', function(data) {\n     *      console.log('pinger', data)\n     *   })\n     * @param {number} ms Repeat interval in ms\n     */\n    setPing(ms = 0) {\n        const oReq = new XMLHttpRequest()\n        oReq.addEventListener('load', () => {\n            const headers = (oReq.getAllResponseHeaders()).split('\\r\\n')\n            const elapsedTime = Number(new Date()) - Number((oReq.responseURL.split('='))[1])\n            this.set('ping', {\n                success: !!((oReq.status === 201) || (oReq.status === 204)), // true if one of the listed codes else false\n                status: oReq.status,\n                headers: headers,\n                url: oReq.responseURL,\n                elapsedTime: elapsedTime,\n            })\n        })\n\n        if (this.#pingInterval) {\n            clearInterval(this.#pingInterval)\n            this.#pingInterval = undefined\n        }\n\n        oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n        oReq.send()\n\n        if (ms > 0) {\n            this.#pingInterval = setInterval(() => {\n                oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n                oReq.send()\n            }, ms)\n        }\n    } // ---- End of ping ---- //\n\n    log() {\n        log(...arguments)()\n    }\n\n    /** Convert JSON to Syntax Highlighted HTML\n     * @param {object} json A JSON/JavaScript Object\n     * @returns {html} Object reformatted as highlighted HTML\n     */\n    syntaxHighlight(json) {\n        return syntaxHighlight(json)\n    } // --- End of syntaxHighlight --- //\n\n    /** Copies a uibuilder variable to the browser clipboard\n     * @param {string} varToCopy The name of the uibuilder variable to copy to the clipboard\n     */\n    copyToClipboard(varToCopy) {\n        let data = ''\n        try {\n            data = JSON.stringify(this.get(varToCopy))\n        } catch (e) {\n            log('error', 'copyToClipboard', `Could not copy \"${varToCopy}\" to clipboard.`, e.message)()\n        }\n        navigator.clipboard.writeText(data)\n    } // --- End of copyToClipboard --- //\n\n    /** DEPRECATED FOR NOW - wasn't working properly.\n     * Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.\n     * Requires IntersectionObserver (available to all mainstream browsers from early 2019)\n     * Automatically sends a msg back to Node-RED.\n     * Requires the element to already exist.\n     * @returns {false} False if not visible\n     */\n    elementIsVisible() {\n        const info = 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'\n        log('error', 'uib:elementIsVisible', info)()\n        this.send({ payload: 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex' })\n        return false\n    } // --- End of elementIsVisible --- //\n\n    /** Does the chosen CSS Selector currently exist?\n     * Automatically sends a msg back to Node-RED unless turned off.\n     * @param {string} cssSelector Required. CSS Selector to examine for visibility\n     * @param {boolean} [msg] Optional, default=true. If true also sends a message back to Node-RED\n     * @returns {boolean} True if the element exists\n     */\n    elementExists(cssSelector, msg = true) {\n        const el = document.querySelector(cssSelector)\n\n        let exists = false\n        if (el !== null) exists = true\n\n        if (msg === true) {\n            this.send({\n                payload: exists,\n                info: `Element \"${cssSelector}\" ${exists ? 'exists' : 'does not exist'}`\n            })\n        }\n\n        return exists\n    } // --- End of elementExists --- //\n\n    /** Only keep the URL Hash & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return '#' + url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Set up an event listener to watch for hash changes\n     * and set the watchable urlHash variable\n     */\n    _watchHashChanges() {\n        this.set('urlHash', location.hash)\n        window.addEventListener('hashchange', (event) => {\n            this.set('urlHash', location.hash)\n            if (this.#sendUrlHash === true) {\n                this.send({ topic: 'hashChange', payload: location.hash, newHash: this.keepHashFromUrl(event.newURL), oldHash: this.keepHashFromUrl(event.oldURL) })\n            }\n        })\n    }\n\n    /** Returns true/false or a default value for truthy/falsy and other values\n     * @param {string|number|boolean|*} val The value to test\n     * @param {any} deflt Default value to use if the value is not truthy/falsy\n     * @returns {boolean|any} The truth! Or the default\n     */\n    truthy(val, deflt) {\n        let ret\n        if (['on', 'On', 'ON', 'true', 'True', 'TRUE', '1', true, 1].includes(val)) ret = true\n        else if (['off', 'Off', 'OFF', 'false', 'False', 'FALSE', '0', false, 0].includes(val)) ret = false\n        else ret = deflt\n        return ret\n    }\n\n    /** Turn on/off/toggle sending URL hash changes back to Node-RED\n     * @param {string|number|boolean|undefined} [toggle] Optional on/off/etc\n     * @returns {boolean} True if we will send a msg to Node-RED on a hash change\n     */\n    watchUrlHash(toggle) {\n        this.#sendUrlHash = this.truthy(toggle, this.#sendUrlHash !== true)\n        return this.#sendUrlHash\n    }\n\n    /** Navigate to a new page or a new route (hash)\n     * @param {string} url URL to navigate to. Can be absolute or relative (to current page) or just a hash for a route change\n     * @returns {Location} The new window.location string\n     */\n    navigate(url) {\n        if (url) window.location.href = url\n        return window.location\n    }\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- UI handlers --------- //\n\n    //#region -- Direct to _ui --\n    // ! NOTE: Direct assignments change the target `this` to here. Use with caution\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {HTMLElement|null} Selected HTML element or null\n     */\n    $ = _ui.$\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {string} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {HTMLElement[]} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$ = _ui.$$\n\n    /** Reference to the full ui library */\n    $ui = _ui\n\n    /** Add 1 or several class names to an element\n     * @param {string|string[]} classNames Single or array of classnames\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    addClass = _ui.addClass\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        return _ui.convertMarkdown\n    }\n\n    /** ASYNC: Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     */\n    async include(url, uiOptions) {\n        await _ui.include(url, uiOptions)\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        _ui.loadScriptSrc(url)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        _ui.loadStyleSrc(url)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        _ui.loadScriptTxt(textFn)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        _ui.loadStyleTxt(textFn)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        _ui.loadui(url)\n    }\n\n    /** Remove All, 1 or more class names from an element\n     * @param {undefined|null|\"\"|string|string[]} classNames Single or array of classnames. If undefined, \"\" or null, remove all classes\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    removeClass = _ui.removeClass\n\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        _ui.replaceSlot(el, component)\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        _ui.replaceSlotMarkdown(el, component)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        return _ui.sanitiseHTML(html)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) {\n        _ui.showDialog(type, ui, msg)\n    }\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        _ui.ui(json)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        return _ui.uiGet(cssSelector, propName)\n    }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} component Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, component) {\n        _ui.uiEnhanceElement(el, component)\n    }\n\n    //#endregion -- direct to _ui --\n\n    /** * Show/hide a display card on the end of the visible HTML that will dynamically display the last incoming msg from Node-RED\n     * The card has the id `uib_last_msg`. Updates are done from a listener set up in the start function.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showMsg(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowMsg\n        this.#isShowMsg = showHide\n        let slot = 'Waiting for a message from Node-RED'\n\n        if (this.msg && Object.keys(this.msg).length > 0) {\n            slot = this.syntaxHighlight(this.msg)\n        }\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_last_msg_wrap',\n                ],\n            })\n        } else {\n            _ui._uiReplace({\n                components: [\n                    {\n                        type: 'div',\n                        id: 'uib_last_msg_wrap',\n                        parent: parent,\n                        attributes: {\n                            title: 'Last message from Node-RED',\n                        },\n                        components: [\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.copyToClipboard(\"msg\")',\n                                    class: 'compact',\n                                    style: 'right:3em;',\n                                },\n                                slot: '\uD83D\uDCCB',\n                            },\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.showMsg()',\n                                    class: 'compact',\n                                    style: 'right:.5em;',\n                                },\n                                slot: '\u26D4',\n                            },\n                            {\n                                type: 'pre',\n                                id: 'uib_last_msg',\n                                // parent: 'uib_last_msg_wrap',\n                                attributes: {\n                                    class: 'syntax-highlight',\n                                },\n                                slot: slot,\n                            },\n                        ],\n                    },\n                ],\n            })\n        }\n\n        return showHide\n    }\n\n    /** Show a browser notification if possible.\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * @example uibuilder.notify( 'My simple message to the user' )\n     * @example uibuilder.notify( {topic: 'My Title', payload: 'My simple message to the user'} )\n     * @example uibuilder.notify( {title: 'My Title', body: 'My simple message to the user'} )\n     * @example // If config.return = true, a promise is returned.\n     * // The resolved promise is only returned if the notification is clicked by the user.\n     * // Can be used to send the response back to Node-RED\n     * uibuilder.notify(notifyConfig).then( res => uibuilder.eventSend(res) )\n     * @ref https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config data or simple message string\n     * @returns {Promise<Event>|null} A promise that resolves to the click event or null\n     */\n    notify(config) {\n        if (config.return) return _ui.notification(config)\n\n        _ui.notification(config)\n            .then( res => { // eslint-disable-line promise/always-return\n                log('info', 'Uib:notification', 'Notification completed event', res)()\n                // if (config.return) return res\n            })\n            .catch( err => {\n                log('error', 'Uib:notification', 'Notification error event', err)()\n            })\n        return null\n    }\n\n    /** Scroll the page\n     * https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollIntoView\n     * @param {string} [cssSelector] Optional. If not set, scrolls to top of page.\n     * @param {{block:(string|undefined),inline:(string|undefined),behavior:(string|undefined)}} [opts] Optional. DOM scrollIntoView options\n     * @returns {boolean} True if element was found, false otherwise\n     */\n    scrollTo(cssSelector, opts) {\n        // @ts-ignore\n        if (!opts) opts = {}\n        if (!cssSelector || cssSelector === 'top'  || cssSelector === 'start') cssSelector = 'body'\n        else if (cssSelector === 'bottom' || cssSelector === 'end') {\n            cssSelector = 'body'\n            opts.block = 'end'\n        }\n        const el = this.$(cssSelector)\n        if (el) {\n            el.scrollIntoView(opts)\n            return true\n        }\n        return false\n    }\n\n    /** Show/hide a display card on the end of the visible HTML that will dynamically display the current status of the uibuilder client\n     * The card has the id `uib_status`.\n     * The display is updated by an event listener created in the class constructor.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showStatus(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowStatus\n        this.#isShowStatus = showHide\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_status',\n                ],\n            })\n            return showHide\n        }\n\n        const root = {\n            components: [\n                {\n                    type: 'div',\n                    id: 'uib_status',\n                    parent: parent,\n                    attributes: {\n                        title: 'Current status of the uibuilder client',\n                        class: 'text-smaller',\n                    },\n                    components: [\n                        {\n                            'type': 'table',\n                            'components': [\n                                {\n                                    'type': 'tbody',\n                                    'components': []\n                                }\n                            ]\n                        }\n                    ]\n                }\n            ]\n        }\n        const details = root.components[0].components[0].components[0].components\n\n        Object.values(this.#showStatus).forEach( entry => {\n            details.push({\n                'type': 'tr',\n                'attributes': {\n                    title: entry.description,\n                },\n                'components': [\n                    {\n                        'type': 'th',\n                        'slot': entry.label,\n                    },\n                    {\n                        'type': 'td',\n                        'attributes': {\n                            'data-varType': entry.var,\n                        },\n                        'slot': entry.var === 'version' ? Uib._meta.version : JSON.stringify(this[entry.var]),\n                    }\n                ],\n            })\n        })\n\n        _ui._uiReplace(root)\n\n        return showHide\n    }\n\n    /** Use the Mutation Observer browser API to watch for changes to a single element on the page.\n     * OMG! It is sooo hard to turn the data into something that successfully serialises so it can be sent back to Node-RED!\n     * NB: Each cssSelector creates a unique watcher. Sending the same selector overwrites the previous one.\n     * @param {string} cssSelector A CSS Selector that selects the element to watch for changes\n     * @param {boolean|\"toggle\"} [startStop] true=start watching the DOM, false=stop. Default='toggle'\n     * @param {boolean} [send] true=Send changes to Node-RED, false=Don't send. Default=true\n     * @param {boolean} [showLog] true=Output changes to log, false=stop. Default=true. Log level is 2 (Info)\n     * @returns {boolean} True if the watch is on, false otherwise\n     */\n    uiWatch(cssSelector, startStop = 'toggle', send = true, showLog = true) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.querySelector(cssSelector)\n        if (!targetNode) {\n            log('warn', 'uibuilder.module.js:uiWatch', `CSS Selector '${cssSelector}' not found.`)()\n            return false\n        }\n\n        if (startStop === 'toggle' || startStop === undefined || startStop === null) {\n            if (this.#uiObservers[cssSelector]) startStop = false\n            else startStop = true\n        }\n\n        // Need a ref to the Uib this\n        const that = this\n\n        if (startStop === true) {\n            // Create an observer instance\n            this.#uiObservers[cssSelector] = new MutationObserver( function( mutationList /* , observer */ ) {\n                const out = []\n\n                mutationList.forEach( mu => {\n                    // console.log({ mu })\n                    const oMu = {\n                        type: mu.type,\n                        oldValue: mu.oldValue !== null ? mu.oldValue : undefined,\n                    }\n\n                    if (mu.addedNodes.length > 0) {\n                        oMu.addedNodes = []\n                        mu.addedNodes.forEach( (an, i) => {\n                            oMu.addedNodes.push(_ui.nodeGet(mu.addedNodes[i]))\n                        })\n                    }\n\n                    if (mu.removedNodes.length > 0) {\n                        oMu.removedNodes = []\n                        mu.removedNodes.forEach( (an, i) => {\n                            oMu.removedNodes.push(_ui.nodeGet(mu.removedNodes[i]))\n                        })\n                    }\n\n                    if ( mu.type === 'attributes' ) {\n                        oMu.attributeName = mu.attributeName\n                        // @ts-ignore\n                        oMu.newValue = mu.target.attributes[mu.attributeName].value\n                    }\n\n                    out.push(oMu)\n                })\n\n                // Custom event\n                that._dispatchCustomEvent('uibuilder:domChange', out)\n                // Send a msg back to node-red\n                if (send === true) {\n                    that.send({\n                        _ui: {\n                            cssSelector: cssSelector,\n                            uiChanges: out\n                        },\n                        topic: that.topic || `DOM Changes for '${cssSelector}'`,\n                    })\n                }\n                // Log to info\n                if (showLog === true) {\n                    log('info', 'uibuilder.module.js:uiWatch', `DOM Changes for '${cssSelector}'`, { uiChanges: out }, { mutationList })()\n                }\n            } )\n\n            // Start observing the target node for configured mutations\n            this.#uiObservers[cssSelector].observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:uiWatch', `Started Watching DOM changes for '${cssSelector}'`)()\n        } else {\n            this.#uiObservers[cssSelector].disconnect()\n            delete this.#uiObservers[cssSelector]\n            log('trace', 'uibuilder.module.js:uiWatch', `Stopped Watching DOM changes for '${cssSelector}'`)()\n        }\n\n        return startStop\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- HTML cache and DOM watch --------- //\n\n    /** Clear the saved DOM from localStorage */\n    clearHtmlCache() {\n        this.removeStore('htmlCache')\n        log('trace', 'uibuilder.module.js:clearHtmlCache', 'HTML cache cleared')()\n    }\n\n    /** Restore the complete DOM (the whole web page) from browser localStorage if available */\n    restoreHtmlFromCache() {\n        // Is the html cached? If so, restore it\n        const htmlCache = this.getStore('htmlCache')\n        if (htmlCache) {\n            const targetNode = document.getElementsByTagName('html')[0]\n            // Restore the entire HTML\n            targetNode.innerHTML = htmlCache\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'Restored HTML from cache')()\n        } else {\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'No cache to restore')()\n        }\n    }\n\n    /** Save the current DOM state to browser localStorage.\n     * localStorage is persistent and so can be recovered even after a browser restart.\n     */\n    saveHtmlCache() {\n        // Save the updated entire HTML in localStorage\n        this.setStore('htmlCache', document.documentElement.innerHTML)\n    }\n\n    /** Use the Mutation Observer browser API to watch for and save changes to the HTML\n     * Once the observer is created, it will be reused.\n     * Sending true or undefined will turn on the observer, false turns it off.\n     * saveHtmlCache is called whenever anything changes in the dom. This allows\n     * users to call restoreHtmlFromCache() on page load if desired to completely reload\n     * to the last saved state.\n     * @param {boolean} startStop true=start watching the DOM, false=stop\n     */\n    watchDom(startStop) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.documentElement\n\n        // Need a ref to the Uib this\n        const that = this\n\n        // Create an observer instance\n        if (!this._htmlObserver) {\n            this._htmlObserver = new MutationObserver( function(/* mutationList, observer */) {\n                // We don't need to know the details - so kill off any outstanding mutation records\n                this.takeRecords()\n                // Save the updated entire HTML in localStorage\n                that.saveHtmlCache()\n            } )\n        }\n\n        if (startStop === true || startStop === undefined) {\n            // Start observing the target node for configured mutations\n            this._htmlObserver.observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:watchDom', 'Started Watching and saving DOM changes')()\n        } else {\n            this._htmlObserver.disconnect()\n            log('trace', 'uibuilder.module.js:watchDom', 'Stopped Watching and saving DOM changes')()\n        }\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- Message Handling (To/From Node-RED) -------- //\n\n    /** Handles original control msgs (not to be confused with \"new\" msg._uib controls)\n     * @param {*} receivedCtrlMsg The msg received on the socket.io control channel\n     */\n    _ctrlMsgFromServer(receivedCtrlMsg) {\n\n        // Make sure that msg is an object & not null\n        if (receivedCtrlMsg === null) {\n            receivedCtrlMsg = {}\n        } else if (typeof receivedCtrlMsg !== 'object') {\n            const msg = {}\n            msg['uibuilderCtrl:' + this._ioChannels.control] = receivedCtrlMsg\n            receivedCtrlMsg = msg\n        }\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedCtrlMsg)\n\n        this.set('ctrlMsg', receivedCtrlMsg)\n        this.set('msgsCtrlReceived', ++this.msgsCtrlReceived)\n\n        log('trace', 'Uib:ioSetup:_ctrlMsgFromServer', `Channel '${this._ioChannels.control}'. Received control msg #${this.msgsCtrlReceived}`, receivedCtrlMsg)()\n\n        /** Process control msg types */\n        switch (receivedCtrlMsg.uibuilderCtrl) {\n            // Node-RED is shutting down\n            case 'shutdown': {\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, '\u274C Received \"shutdown\" from server')()\n                this.set('serverShutdown', undefined)\n                break\n            }\n\n            /** We are connected to the server - 1st msg from server */\n            case 'client connect': {\n                log('trace', `Uib:ioSetup:${this._ioChannels.control}`, 'Received \"client connect\" from server')()\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, `\u2705 Server connected. Version: ${receivedCtrlMsg.version}\\nServer time: ${receivedCtrlMsg.serverTimestamp}, Sever time offset: ${this.serverTimeOffset} hours`)()\n\n                if ( !Uib._meta.version.startsWith(receivedCtrlMsg.version.split('-')[0]) ) {\n                    log('warn', `Uib:ioSetup:${this._ioChannels.control}`, `Server version (${receivedCtrlMsg.version}) not the same as the client version (${Uib._meta.version})`)()\n                }\n\n                if (this.autoSendReady === true) { // eslint-disable-line no-lonely-if\n                    log('trace', `Uib:ioSetup:${this._ioChannels.control}/client connect`, 'Auto-sending ready-for-content/replay msg to server')\n                    // @since 0.4.8c Add cacheControl property for use with node-red-contrib-infocache\n                    // @since 6.1.0 Don't bother, we use the \"client connect\" msg\n                    // this._send({\n                    //     'uibuilderCtrl': 'ready for content',\n                    //     'cacheControl': 'REPLAY',\n                    // }, this._ioChannels.control)\n                }\n\n                break\n            }\n\n            default: {\n                log('trace', `uibuilderfe:ioSetup:${this._ioChannels.control}`, `Received ${receivedCtrlMsg.uibuilderCtrl} from server`)\n                // Anything else to do for other control msgs?\n            }\n        } // ---- End of process control msg types ---- //\n    } // -- End of websocket receive CONTROL msg from Node-RED -- //\n\n    /** Do we want to process something? Check pageName, clientId, tabId. Defaults to yes.\n     * @param {*} obj Either a msg._ui or msg._uib object to check\n     * @returns {boolean} True if we should process the inbound _ui/_uib msg, false if not.\n     */\n    _forThis(obj) {\n        let r = true\n\n        // Is this msg for this pageName?\n        if (obj.pageName && obj.pageName !== this.pageName) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this page')()\n            r = false\n        }\n\n        // Is this msg for this clientId?\n        if (obj.clientId && obj.clientId !== this.clientId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this clientId')()\n            r = false\n        }\n\n        // Is this msg for this tabId?\n        if (obj.tabId && obj.tabId !== this.tabId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this tabId')()\n            r = false\n        }\n\n        return r\n    }\n\n    // Handle received messages - Process some msgs internally, emit specific events on document that make it easy for coders to use\n    _msgRcvdEvents(msg) {\n        // Message received\n        this._dispatchCustomEvent('uibuilder:stdMsgReceived', msg)\n\n        // Topic\n        if ( msg.topic ) this._dispatchCustomEvent(`uibuilder:msg:topic:${msg.topic}`, msg)\n\n        // Handle msg._uib special requests\n        if (msg._uib) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._uib)) return\n\n            /** Process a client reload request from Node-RED - as the page is reloaded, everything else is ignored\n             * Note that msg._ui.reload is also actioned via the _ui processing below */\n            if (msg._uib.reload === true) {\n                log('trace', 'Uib:_msgRcvdEvents:_uib:reload', 'reloading')()\n                location.reload()\n                return\n            }\n\n            // Process msg._uib.command messages - allows Node-RED to run uibuilder FE functions\n            if (msg._uib.command) {\n                this._uibCommand(msg)\n                return\n            }\n\n            // Better to request via msg._ui - these are for backwards compatibility\n            if ( msg._uib.componentRef === 'globalNotification' ) {\n                _ui.showDialog('notify', msg._uib.options, msg)\n            }\n            if ( msg._uib.componentRef === 'globalAlert' ) {\n                _ui.showDialog('alert', msg._uib.options, msg)\n            }\n        }\n\n        // Handle msg._ui requests\n        if ( msg._ui ) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._ui)) return\n\n            log('trace', 'Uib:_msgRcvdEvents:_ui', 'Calling _uiManager')()\n            this._dispatchCustomEvent('uibuilder:msg:_ui', msg)\n            _ui._uiManager(msg)\n        }\n    } // --- end of _msgRcvdEvents ---\n\n    /** Internal send fn. Send a standard or control msg back to Node-RED via Socket.IO\n     * NR will generally expect the msg to contain a payload topic\n     * @param {object} msgToSend The msg object to send.\n     * @param {string} [channel=uiBuilderClient] The Socket.IO channel to use, must be in self.ioChannels or it will be ignored\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    _send(msgToSend, channel, originator = '') {\n        if (channel === null || channel === undefined) channel = this._ioChannels.client\n\n        // Make sure msgToSend is an object\n        if (channel === this._ioChannels.client) {\n            msgToSend = makeMeAnObject(msgToSend, 'payload')\n        } else if (channel === this._ioChannels.control) {\n            msgToSend = makeMeAnObject(msgToSend, 'uibuilderCtrl')\n            if (!Object.prototype.hasOwnProperty.call(msgToSend, 'uibuilderCtrl')) {\n                msgToSend.uibuilderCtrl = 'manual send'\n            }\n            // help remember where this came from as ctrl msgs can come from server or client\n            msgToSend.from = 'client'\n        }\n\n        /** since 2020-01-02 Added _socketId which should be the same as the _socketId on the server */\n        msgToSend._socketId = this._socket.id\n\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n\n        // Add the originator metadata if required\n        if (originator === '' && this.originator !== '') originator = this.originator\n        if (originator !== '') Object.assign(msgToSend, { '_uib': { 'originator': originator } })\n\n        // If the msg does not have a topic - see if we want to add one\n        if ( !Object.prototype.hasOwnProperty.call(msgToSend, 'topic') ) {\n            // From the default (`uibuilder.set('topic', 'some topic')`)\n            if (this.topic !== undefined && this.topic !== '') msgToSend.topic = this.topic\n            else {\n                // Did the last inbound msg have a topic?\n                if ( Object.prototype.hasOwnProperty.call(this, 'msg') && Object.prototype.hasOwnProperty.call(this.msg, 'topic') ) {\n                    msgToSend.topic = this.msg.topic\n                }\n            }\n        }\n\n        // If a standard send & _ui property exists, make sure to add _ui.from = 'client'\n        if (msgToSend._ui) msgToSend._ui.from = 'client'\n\n        // Track how many messages have been sent & last msg sent\n        let numMsgs\n        if (channel === this._ioChannels.client) {\n            this.set('sentMsg', msgToSend)\n            numMsgs = this.set('msgsSent', ++this.msgsSent)\n        } else if (channel === this._ioChannels.control) {\n            this.set('sentCtrlMsg', msgToSend)\n            numMsgs = this.set('msgsSentCtrl', ++this.msgsSentCtrl)\n        }\n        log('trace', 'Uib:_send', ` Channel '${channel}'. Sending msg #${numMsgs}`, msgToSend)()\n\n        this._socket.emit(channel, msgToSend)\n    } // --- End of Send Msg Fn --- //\n\n    /** Callback handler for messages from Node-RED\n     * NOTE: `this` is the class here rather the `socket` as would be normal since we bind the correct `this` in the call.\n     *       Use this._socket if needing reference to the socket.\n     * @callback ioSetupFromServer Called from ioSetup/this._socket.on(this.#ioChannels.server, this.stdMsgFromServer.bind(this))\n     * @param {object} receivedMsg The msg object from Node-RED\n     * @this Uib\n     */\n    _stdMsgFromServer(receivedMsg) {\n\n        // Make sure that msg is an object & not null\n        receivedMsg = makeMeAnObject(receivedMsg, 'payload')\n\n        // Don't process if the inbound msg is not for us\n        if (receivedMsg._uib && !this._forThis(receivedMsg._uib)) return\n        if (receivedMsg._ui && !this._forThis(receivedMsg._ui)) return\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedMsg)\n\n        // Track how many messages have been received\n        this.set('msgsReceived', ++this.msgsReceived)\n\n        // Emit specific document events on msg receipt that make it easy for coders to use\n        this._msgRcvdEvents(receivedMsg)\n\n        if ( !('_ui' in receivedMsg && !('payload' in receivedMsg)) ) {\n            // Save the msg for further processing\n            this.set('msg', receivedMsg)\n        }\n\n        log('info', 'Uib:ioSetup:stdMsgFromServer', `Channel '${this._ioChannels.server}'. Received msg #${this.msgsReceived}.`, receivedMsg)()\n\n        // ! NOTE: Don't try to handle specialist messages here. See _msgRcvdEvents.\n    } // -- End of websocket receive DATA msg from Node-RED -- //\n\n    /** Process msg._uib.command - Remember to update #extCommands with new allowed commands\n     * @param {object} msg Msg from Node-RED containing a msg._uib object\n     */\n    _uibCommand(msg) {\n        if (!msg._uib || !msg._uib.command) {\n            log('error', 'uibuilder:_uibCommand', 'Invalid command message received', { msg })()\n            msg.payload = msg.error = 'Invalid command message received'\n            this.send(msg)\n            return\n        }\n        const cmd = msg._uib.command\n        // Disallowed command request outputs error and ignores the msg (NB: Case must match)\n        if (!this.#extCommands.includes(cmd.trim())) {\n            log('error', 'Uib:_uibCommand', `Command '${cmd} is not allowed to be called externally`)()\n            return\n        }\n        const prop = msg._uib.prop\n        const value = msg._uib.value\n        const quiet = msg._uib.quiet ?? false\n        let response, info\n\n        // Don't forget to update `#extCommands`, `docs/client-docs/control-from-node-red.md` & `functions.md`\n        switch (cmd) {\n            case 'elementIsVisible': {\n                response = this.elementIsVisible(prop)\n                // info = `Element \"${prop}\" ${response ? 'is visible' : 'is not visible'}`\n                break\n            }\n\n            case 'elementExists': {\n                response = this.elementExists(prop, false)\n                info = `Element \"${prop}\" ${response ? 'exists' : 'does not exist'}`\n                break\n            }\n\n            case 'get': {\n                response = this.get(prop)\n                break\n            }\n\n            case 'getManagedVarList': {\n                if (prop === 'full') response = this.getManagedVarList()\n                else response = Object.values(this.getManagedVarList())\n                break\n            }\n\n            case 'getWatchedVars': {\n                if (prop === 'full') response = this.getWatchedVars()\n                else response = Object.values(this.getWatchedVars())\n                break\n            }\n\n            case 'htmlSend': {\n                response = this.htmlSend('', false)\n                break\n            }\n\n            case 'include': {\n                // include is async\n                response = _ui.include(prop, value)\n                break\n            }\n\n            case 'navigate': {\n                let newUrl\n                if (prop) newUrl = prop\n                else if (value) newUrl = value\n                response = this.navigate(newUrl)\n                break\n            }\n\n            case 'scrollTo': {\n                response = this.scrollTo(prop, value)\n                break\n            }\n\n            case 'set': {\n                let store = false\n                let autoload = false\n                if (msg._uib.options && msg._uib.options.store) {\n                    if (msg._uib.options.store === true) store = true\n                    if (msg._uib.options.autoload === true) autoload = true\n                }\n                response = this.set(prop, value, store, autoload)\n                break\n            }\n\n            case 'showMsg': {\n                response = this.showMsg(value, prop)\n                break\n            }\n\n            case 'showStatus': {\n                response = this.showStatus(value, prop)\n                break\n            }\n\n            case 'uiGet': {\n                response = _ui.uiGet(prop, value)\n                break\n            }\n\n            case 'uiWatch': {\n                response = this.uiWatch(prop)\n                break\n            }\n\n            case 'watchUrlHash': {\n                response = this.watchUrlHash(prop)\n                break\n            }\n\n            default: {\n                log('warning', 'Uib:_uibCommand', `Command '${cmd}' not yet implemented`)()\n                break\n            }\n        }\n\n        if (quiet !== true) {\n            if (response === undefined) {\n                response = `'${prop}' is undefined`\n            }\n            if (Object(response).constructor === Promise) {\n                // response = `'${cmd} ${prop}' submitted. Cmd is async, no response available`\n                response\n                    .then( (/** @type {any} */ data) => {\n                        msg.payload = msg._uib.response = data\n                        msg.info = msg._uib.info = info\n                        if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                        this.send(msg)\n                        return true\n                    })\n                    .catch( err => {\n                        log(0, 'Uib:_uibCommand', 'Error: ', err)()\n                    })\n            } else {\n                msg.payload = msg._uib.response = response\n                msg.info = msg._uib.info = info\n                if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                this.send(msg)\n            }\n        }\n    } // --- end of _uibCommand ---\n\n    /** Send log text to uibuilder's beacon endpoint (works even if socket.io not connected)\n     * @param {string} txtToSend Text string to send\n     * @param {string|undefined} logLevel Log level to use. If not supplied, will default to debug\n     */\n    beaconLog(txtToSend, logLevel) {\n        if (!logLevel) logLevel = 'debug'\n        navigator.sendBeacon('./_clientLog', `${logLevel}::${txtToSend}`)\n    }\n\n    /** Easily send the entire DOM/HTML msg back to Node-RED\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     * @param {boolean} [send] If true (default) directly send response to Node-RED. Is false when calling from Node-RED as a command.\n     * @returns {string} The HTML as a string\n     */\n    htmlSend(originator = '', send = true) {\n        const out = `<!doctype html>\\n${document.documentElement.outerHTML}`\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            payload: out,\n            length: out.length,\n            topic: this.topic,\n        }\n\n        log('trace', 'Uib:htmlSend', 'Sending full HTML to Node-RED', msg)()\n\n        if (send === true) this._send(msg, this._ioChannels.client, originator)\n        return out\n    }\n\n    /** Send log info back to Node-RED over uibuilder's websocket control output (Port #2)\n     * @param {...*} arguments All arguments passed to the function are added to the msg.payload\n     */\n    logToServer() {\n        this.sendCtrl({\n            uibuilderCtrl: 'client log message',\n            payload: arguments,\n            // \"version\":\"6.1.0-iife.min\",\n            _socketId: this._socket.id,\n            // \"ip\":\"::1\",\n            clientId: this.clientId,\n            tabId: this.tabId,\n            // \"url\":\"esp-test\",\n            pageName: this.pageName,\n            connections: this.connectedNum,\n            lastNavType: this.lastNavType,\n        })\n    }\n\n    /** Easily send a msg back to Node-RED on a DOM event\n     * @example In plain HTML/JavaScript\n     *    `<button id=\"button1\" name=\"button 1\" data-fred=\"jim\"></button>`\n     *    $('#button1').onclick = (evt) => {\n     *      uibuilder.eventSend(evt)\n     *    }\n     * @example\n     * In VueJS: `<b-button id=\"myButton1\" @click=\"doEvent\" data-something=\"hello\"></b-button>`\n     * In VueJS methods: `doEvent: uibuilder.eventSend,`\n     *\n     * All `data-` attributes will be passed back to Node-RED,\n     *    use them instead of arguments in the click function.\n     *    All target._ui custom properties are also passed back to Node-RED.\n     *\n     * @param {MouseEvent|any} domevent DOM Event object\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    eventSend(domevent, originator = '') { // eslint-disable-line sonarjs/cognitive-complexity\n        // @ts-ignore Handle case where vue messes up `this`\n        if ( this.$attrs ) {\n            log('error', 'Uib:eventSend', '`this` has been usurped by VueJS. Make sure that you wrap the call in a function: `doEvent: function (event) { uibuilder.eventSend(event) },`' )()\n            return\n        }\n        if (!domevent && !event) {\n            log('warn', 'Uib:eventSend', 'Neither the domevent nor the hidden event properties are set. You probably called this function directly rather than applying to an on click event.' )()\n            return\n        }\n        // Handle no argument, e.g. <button onClick=\"uibuilder.eventSend()\"> - event is a hidden variable when fn used in addEventListener\n        if (!domevent || !domevent.constructor) domevent = event\n\n        // The argument must be a DOM event\n        if ((!domevent.constructor.name.endsWith('Event')) || (!domevent.currentTarget)) {\n            log('warn', 'Uib:eventSend', `ARGUMENT NOT A DOM EVENT - use data attributes not function arguments to pass data. Arg Type: ${domevent.constructor.name}`, domevent)()\n            return\n        }\n\n        // Prevent default event action\n        domevent.preventDefault()\n\n        // The target element\n        const target = domevent.currentTarget\n\n        // Get target properties - only shows custom props not element default ones\n        const props = {}\n        Object.keys(target).forEach( key => {\n            if (key.startsWith('_')) return // Exclude private\n            props[key] = target[key]\n        })\n\n        // Attempt to get target attributs - can fail for certain target types\n        const ignoreAttribs = ['class', 'id', 'name']\n        let attribs\n        try {\n            attribs = Object.assign({},\n                ...Array.from(target.attributes,\n                    ( { name, value } ) => {\n                        if ( !ignoreAttribs.includes(name) ) {\n                            return ({ [name]: value })\n                        }\n                        return undefined\n                    }\n                )\n            )\n        } catch (e) {}\n\n        // If target embedded in a form, include the form data\n        let form\n        const frmVals = []\n        if ( target.form ) {\n            form = {}\n            form.valid = target.form.checkValidity()\n            Object.values(target.form).forEach( (frmEl, i) => {\n                const id = frmEl.id !== '' ? frmEl.id : (frmEl.name !== '' ? frmEl.name : `${i}-${frmEl.type}`)\n\n                // We must have both an element id (we may have forced one above) AND\n                // the element type MUST be not undefined - to allow for the extra properties added by frameworks such as Svelte\n                if (id !== '' && frmEl.type) {\n                    // Stupid HTML doesn't use value attrib for checkboxes. So override if value is set to default\n                    if ('checked' in frmEl && frmEl.value === 'on') frmEl.value = frmEl.checked.toString()\n\n                    frmVals.push( { key: id, val: frmEl.value } ) // simplified for addition to msg.payload\n\n                    form[id] = {\n                        'id': frmEl.id,\n                        'name': frmEl.name,\n                        'value': frmEl.value,\n                        'valid': frmEl.checkValidity(),\n                        'type': frmEl.type,\n                    }\n\n                    if (form[id].valid === false) {\n                        const v = frmEl.validity\n                        form[id].validity = {\n                            badInput: v.badInput === true ? v.badInput : undefined,\n                            customError: v.customError === true ? v.customError : undefined,\n                            patternMismatch: v.patternMismatch === true ? v.patternMismatch : undefined,\n                            rangeOverflow: v.rangeOverflow === true ? v.rangeOverflow : undefined,\n                            rangeUnderflow: v.rangeUnderflow === true ? v.rangeUnderflow : undefined,\n                            stepMismatch: v.stepMismatch === true ? v.stepMismatch : undefined,\n                            tooLong: v.tooLong === true ? v.tooLong : undefined,\n                            tooShort: v.tooShort === true ? v.tooShort : undefined,\n                            typeMismatch: v.typeMismatch === true ? v.typeMismatch : undefined,\n                            valueMissing: v.valueMissing === true ? v.valueMissing : undefined,\n                        }\n                    }\n\n                    if (frmEl.dataset) form[id].data = frmEl.dataset\n                }\n            })\n        }\n\n        // Check for CSS Classes\n        let classes\n        try {\n            classes = Array.from(target.classList)\n        } catch (e) {}\n\n        // Each `data-xxxx` attribute is added as a property\n        let payload = { ...target.dataset }\n\n        // Handle Notification events\n        let nprops\n        if ( Object.prototype.toString.call(target) === '[object Notification]') {\n            // Fixed payload for convenience\n            payload = `notification-${target.userAction}`\n            // Capture the notification properties\n            nprops = {\n                // userAction: target.userAction, // uib custom prop: click, close or error\n                actions: target.actions,\n                badge: target.badge,\n                body: target.body,\n                data: target.data,\n                dir: target.dir,\n                icon: target.icon,\n                image: target.image,\n                lang: target.lang,\n                renotify: target.renotify,\n                requireInteraction: target.requireInteraction,\n                silent: target.silent,\n                tag: target.tag,\n                timestamp: target.timestamp,\n                title: target.title,\n                vibrate: target.vibrate,\n            }\n        }\n        // console.log(Object.prototype.toString.call(target))\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            // - this may be an empty Object if no data attributes defined\n            payload: payload,\n\n            _ui: {\n                type: 'eventSend',\n                id: target.id !== '' ? target.id : undefined,\n                name: target.name !== '' ? target.name : undefined,\n                slotText: target.textContent ? target.textContent.substring(0, 255) : undefined,\n\n                form: form,\n                props: props,\n                attribs: attribs,\n                classes: classes,\n\n                notification: nprops,\n\n                event: domevent.type,\n                altKey: domevent.altKey,\n                ctrlKey: domevent.ctrlKey,\n                shiftKey: domevent.shiftKey,\n                metaKey: domevent.metaKey,\n\n                pointerType: domevent.pointerType,\n                nodeName: target.nodeName,\n\n                clientId: this.clientId,\n                pageName: this.pageName,\n                tabId: this.tabId,\n            }\n        }\n\n        if (frmVals.length > 0) {\n            frmVals.forEach( entry => {\n                msg.payload[entry.key] = entry.val\n            })\n        }\n\n        if (domevent.type === 'change') {\n            // Checkboxes don't have a value!!\n            msg._ui.newValue = msg.payload.value = 'checked' in target ? target.checked : domevent.target.value\n        }\n\n        log('trace', 'Uib:eventSend', 'Sending msg to Node-RED', msg)()\n        if (target.dataset && target.dataset.length === 0) log('warn', 'Uib:eventSend', 'No payload in msg. data-* attributes should be used.')()\n\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Send a standard message to NR\n     * @example uibuilder.send({payload:'Hello'})\n     * @param {object} msg Message to send\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    send(msg, originator = '') {\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Send a control msg to NR\n     * @param {object} msg Message to send\n     */\n    sendCtrl(msg) {\n        this._send(msg, this._ioChannels.control)\n    }\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Socket.IO -------- //\n\n    /** Return the Socket.IO namespace\n     * The cookie method is the most reliable but this falls back to trying to work it\n     * out from the URL if cookies not available. That won't work if page is in a sub-folder.\n     * since 2017-10-21 Improve method to cope with more complex paths - thanks to Steve Rickus @shrickus\n     * since 2017-11-10 v1.0.1 Check cookie first then url. cookie works even if the path is more complex (e.g. sub-folder)\n     * since 2020-01-25 Removed httpRoot from namespace to prevent proxy induced errors\n     * @returns {string} Socket.IO namespace\n     */\n    _getIOnamespace() {\n\n        let ioNamespace\n\n        /** Try getting the namespace cookie. */\n        ioNamespace = this.cookies['uibuilder-namespace']\n\n        // if it wasn't available, try using the current url path\n        if (ioNamespace === undefined || ioNamespace === '') {\n            // split url path & eliminate any blank elements, and trailing or double slashes\n            const u = window.location.pathname.split('/')\n                .filter(function (t) { return t.trim() !== '' })\n\n            /** since v2.0.5 Extra check for 0 length, Issue #73. since 2017-11-06 If the last element of the path is an .html file name, remove it */\n            if (u.length > 0 && (u[u.length - 1].endsWith('.html'))) u.pop()\n\n            // Get the last part of the url path, this MUST match the namespace in uibuilder\n            ioNamespace = u.pop()\n\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via url path: ${ioNamespace}`)()\n        } else {\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via cookie: ${ioNamespace}`)()\n        }\n\n        this.url = ioNamespace\n        // Namespace HAS to start with a /\n        ioNamespace = '/' + ioNamespace\n\n        log('trace', 'uibuilder.module.js:getIOnamespace', `Final Socket.IO namespace: ${ioNamespace}`)()\n\n        return ioNamespace\n    } // --- End of set IO namespace --- //\n\n    /** Function used to check whether Socket.IO is connected to the server, reconnect if not (recursive)\n     * @param {number} [delay] Initial delay before checking (ms). Default=2000ms\n     * @param {number} [factor] Multiplication factor for subsequent checks (delay*factor). Default=1.5\n     * @param {number} [depth] Recursion depth\n     * @returns {boolean|undefined} Whether or not Socket.IO is connected to uibuilder in Node-RED\n     */\n    _checkConnect(delay, factor, depth = 1) {\n        if ( navigator.onLine === false ) return // Don't bother if we know we are offline\n\n        if (!delay) delay = this.retryMs\n        if (!factor) factor = this.retryFactor\n\n        log('trace', 'Uib:checkConnect', `Checking connection. Connected: ${this._socket.connected}. Timer: ${this.#timerid}. Depth: ${depth}. Delay: ${delay}. Factor: ${factor}`, this._socket)()\n\n        // If we are connected ...\n        if (this._socket.connected === true) {\n            // Clear the setTimeout\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this.set('ioConnected', true)\n            this.set('socketError', null)\n            return true\n        }\n\n        // ... we aren't connected so:\n        this.set('ioConnected', false)\n\n        // we only want one running at a time\n        if (this.#timerid) window.clearTimeout(this.#timerid)\n\n        // Create the new timer\n        this.#timerid = window.setTimeout(() => {\n            log('warn', 'Uib:checkConnect:setTimeout', `Socket.IO reconnection attempt. Current delay: ${delay}. Depth: ${depth}`)()\n\n            // this is necessary sometimes when the socket fails to connect on startup\n            this._socket.close()\n\n            // Try to reconnect\n            this._socket.connect()\n\n            // don't need to check whether we have connected as the timer will have been cleared if we have\n            this.#timerid = null\n\n            // @ts-ignore Create new timer for next time round with extended delay\n            this._checkConnect(delay * factor, factor, depth++)\n        }, delay)\n\n        return false\n    } // --- End of checkConnect Fn--- //\n\n    // See message handling section for msg receipt handlers\n\n    /** Called by _ioSetup when Socket.IO connects to Node-RED */\n    _onConnect() {\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n        log('info', 'Uib:ioSetup', `\u2705 SOCKET CONNECTED. Connection count: ${this.connectedNum}, Is a Recovery?: ${this._socket.recovered}. \\nNamespace: ${this.ioNamespace}`)()\n        this._dispatchCustomEvent('uibuilder:socket:connected', { 'numConnections': this.connectedNum, 'isRecovery': this._socket.recovered })\n\n        this._checkConnect() // resets any reconnection timers & sets connected flag\n    }\n\n    /** Called by _ioSetup when Socket.IO disconnects from Node-RED\n     * @param {string} reason Disconnection title\n     */\n    _onDisconnect(reason) {\n        // reason === 'io server disconnect' - redeploy of Node instance\n        // reason === 'transport close' - Node-RED terminating\n        // reason === 'ping timeout' - didn't receive a pong response?\n        log('info', 'Uib:ioSetup:socket-disconnect', `\u26D4 Socket Disconnected. Reason: ${reason}`)()\n\n        this._dispatchCustomEvent('uibuilder:socket:disconnected', reason)\n\n        /** A workaround for SIO's failure to reconnect after a disconnection */\n        this._checkConnect()\n    }\n\n    /** Setup Socket.io\n     * since v2.0.0-beta2 Moved to a function and called by the user (uibuilder.start()) so that namespace & path can be passed manually if needed\n     * @returns {boolean} Attaches socket.io manager to self._socket and updates self.ioNamespace & self.ioPath as needed\n     */\n    _ioSetup() {\n\n        // Just a notification, actual load is done outside the class (see start of file)\n        if (io === undefined) {\n            log('error', 'Uib:ioSetup', 'Socket.IO client not loaded, Node-RED comms will not work')()\n            return false\n        }\n\n        // If socket is already set up, close it and remove all of the listeners\n        if (this._socket) {\n            log('trace', 'Uib:ioSetup', 'Removing listeners in preparation for redoing Socket.IO connections')()\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this._socket.close()\n            this._socket.offAny()\n            this._socket = undefined\n            this.set('ioConnected', false)\n        }\n\n        // Update the URL path to make sure we have the right one\n        this.socketOptions.path = this.ioPath\n\n        // NOTE: this._socket.auth is now set by callback and so automatically updated for each client (re)connection. No need to set here\n\n        // Create the socket - make sure client uses Socket.IO version from the uibuilder module (using path)\n        log('trace', 'Uib:ioSetup', `About to create IO object. Transports: [${this.socketOptions.transports.join(', ')}]`)()\n        this._socket = io(this.ioNamespace, this.socketOptions)\n\n        /** When the socket is connected - set ioConnected flag and reset connect timer  */\n        this._socket.on('connect', this._onConnect.bind(this))\n\n        // RECEIVE a STANDARD, non-control msg from Node-RED server\n        this._socket.on(this._ioChannels.server, this._stdMsgFromServer.bind(this))\n\n        // RECEIVE a CONTROL msg from Node-RED server - see also sendCtrl()\n        this._socket.on(this._ioChannels.control, this._ctrlMsgFromServer.bind(this))\n\n        // When the socket is disconnected ..............\n        this._socket.on('disconnect', this._onDisconnect.bind(this))\n\n        // Socket.io connection error - probably the wrong ioPath - or client is offline\n        this._socket.on('connect_error', (err) => {\n            if ( navigator.onLine === false ) return // Don't bother with an error if we know we are offline\n            log('error', 'Uib:ioSetup:connect_error', `\u274C Socket.IO Connect Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket connect error processing ---\n\n        // Socket.io error - from the server (socket.use middleware triggered an error response)\n        this._socket.on('error', (err) => {\n            log('error', 'Uib:ioSetup:error', `\u274C Socket.IO Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket error processing ---\n\n        // Ensure we are connected, retry if not\n        this._checkConnect()\n\n        return true\n\n        /* We really don't need these, just for interest\n            self._socket.io.on('packet', function onPacket(data){\n                // we get one of these for each REAL msg (not ping/pong)\n                console.debug('PACKET', data)\n            })\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n                //console.dir(self._socket)\n            }) // --- End of socket pong processing ---\n            self._socket.io.on('packet', function(data){\n                // We get one of these for actual messages, not ping/pong\n                console.debug('PACKET', data)\n            })\n            self._socket.on('connect_timeout', function(timeout) {\n                console.debug('SOCKET CONNECT TIMEOUT - Namespace: ' + ioNamespace + ', Timeout: ' + timeout)\n            }) // --- End of socket connect timeout processing ---\n            self._socket.on('reconnect', function(attemptNum) {\n                console.debug('SOCKET RECONNECTED - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect processing ---\n            self._socket.on('reconnect_attempt', function(attemptNum) {\n                console.debug('SOCKET RECONNECT ATTEMPT - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect_attempt processing ---\n            self._socket.on('reconnecting', function(attemptNum) {\n                console.debug('SOCKET RECONNECTING - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnecting processing ---\n            self._socket.on('reconnect_error', function(err) {\n                console.debug('SOCKET RECONNECT ERROR - Namespace: ' + ioNamespace + ', Reason: ' + err.message)\n                //console.dir(err)\n            }) // --- End of socket reconnect_error processing ---\n            self._socket.on('reconnect_failed', function() {\n                console.debug('SOCKET RECONNECT FAILED - Namespace: ' + ioNamespace)\n            }) // --- End of socket reconnect_failed processing ---\n            self._socket.on('ping', function() {\n                console.debug('SOCKET PING')\n            }) // --- End of socket ping processing ---\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n            }) // --- End of socket pong processing ---\n            */\n    } // ---- End of ioSetup ---- //\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Class construction & startup method -------- //\n\n    constructor() {\n        log('trace', 'Uib:constructor', 'Starting')()\n\n        // Track whether the client is online or offline\n        window.addEventListener('offline', (e) => {\n            this.set('online', false)\n            this.set('ioConnected', false)\n            log('warn', 'Browser', 'DISCONNECTED from network')()\n        })\n        window.addEventListener('online', (e) => {\n            this.set('online', true)\n            log('warn', 'Browser', 'Reconnected to network')()\n            this._checkConnect()\n        })\n\n        document.cookie.split(';').forEach((c) => {\n            const splitC = c.split('=')\n            this.cookies[splitC[0].trim()] = splitC[1]\n        })\n\n        /** Client ID set by uibuilder - lasts until browser profile is closed, applies to all tabs */\n        this.set('clientId', this.cookies['uibuilder-client-id'])\n        log('trace', 'Uib:constructor', 'Client ID: ', this.clientId)()\n\n        /** Tab ID - lasts while the tab is open (even if reloaded)\n         * WARNING: Duplicating a tab retains the same tabId\n         */\n        this.set('tabId', window.sessionStorage.getItem('tabId'))\n        if (!this.tabId) {\n            this.set('tabId', `t${Math.floor(Math.random() * 1000000)}`)\n            window.sessionStorage.setItem('tabId', this.tabId)\n        }\n\n        // document.addEventListener('pagehide', (event) => {\n        //     // console.log(`pagehide. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pagehide. From Cache?: ${event.persisted}`)\n        // })\n        // document.addEventListener('pageshow', (event) => {\n        //     // console.log(`pageshow. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pageshow. From Cache?: ${event.persisted}`)\n        // })\n        document.addEventListener('load', () => {\n            this.set('isVisible', true)\n        })\n        document.addEventListener('visibilitychange', () => {\n            // hidden=unload, minimise. visible=un-minimise (not fired on load)\n            this.set('isVisible', document.visibilityState === 'visible')\n            this.sendCtrl({ uibuilderCtrl: 'visibility', isVisible: this.isVisible })\n            // navigator.userActivation is experimental Chromium only\n            // console.log('visibilitychange', ':', `Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n            // navigator.sendBeacon('./_clientLog', `${(new Date()).toISOString()} Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n        })\n\n        // Set a listener to update showStatus table if it is active\n        document.addEventListener('uibuilder:propertyChanged', (event) => {\n            if (!this.#isShowStatus) return\n\n            // @ts-ignore\n            if (event.detail.prop in this.#showStatus) {\n                // @ts-ignore\n                document.querySelector(`td[data-vartype=\"${event.detail.prop}\"]`).innerText = JSON.stringify(event.detail.value)\n            }\n        })\n\n        this.set('ioNamespace', this._getIOnamespace())\n\n        //#region - Try to make sure client uses Socket.IO client version from the uibuilder module (using cookie or path) @since v2.0.0 2019-02-24 allows for httpNodeRoot\n\n        /** httpNodeRoot (to set path) */\n        if ('uibuilder-webRoot' in this.cookies) {\n            this.set('httpNodeRoot', this.cookies['uibuilder-webRoot'])\n            log('trace', 'Uib:constructor', `httpNodeRoot set by cookie to \"${this.httpNodeRoot}\"`)()\n        } else {\n            // split current url path, eliminate any blank elements and trailing or double slashes\n            const fullPath = window.location.pathname.split('/').filter(function (t) { return t.trim() !== '' })\n            /** handle url includes file name - @since v2.0.5 Extra check for 0 length, Issue #73. */\n            if (fullPath.length > 0 && fullPath[fullPath.length - 1].endsWith('.html')) fullPath.pop()\n            fullPath.pop() // gives the last path section of the url\n            this.set('httpNodeRoot', `/${fullPath.join('/')}`)\n            log('trace', '[Uib:constructor]', `httpNodeRoot set by URL parsing to \"${this.httpNodeRoot}\". NOTE: This may fail for pages in sub-folders.`)()\n        }\n        this.set('ioPath', urlJoin(this.httpNodeRoot, Uib._meta.displayName, 'vendor', 'socket.io'))\n        log('trace', 'Uib:constructor', `ioPath: \"${this.ioPath}\"`)()\n\n        //#endregion\n\n        // Work out pageName\n        this.set('pageName', window.location.pathname.replace(`${this.ioNamespace}/`, ''))\n        if ( this.pageName.endsWith('/') ) this.set('pageName', `${this.pageName}index.html`)\n        if ( this.pageName === '' ) this.set('pageName', 'index.html')\n\n        // Attempt to restore autoload variables\n        try {\n            const autoloadVars = this.getStore('_uibAutoloadVars')\n            if (Object.keys(autoloadVars).length > 0) {\n                Object.keys(autoloadVars).forEach( (id) => {\n                    this.set(id, this.getStore(id))\n                })\n            }\n        } catch (e) {}\n\n        this._dispatchCustomEvent('uibuilder:constructorComplete')\n\n        log('trace', 'Uib:constructor', 'Ending')()\n    }\n\n    /** Start up Socket.IO comms and listeners\n     * This has to be done separately because if running from a web page in a sub-folder of src/dist, uibuilder cannot\n     * necessarily work out the correct ioPath to use.\n     * Also, if cookies aren't permitted in the browser, both ioPath and ioNamespace may need to be specified.\n     * @param {object} [options] The start options object.\n     * @returns {void}\n     */\n    start(options) {\n        log('trace', 'Uib:start', 'Starting')()\n\n        // Cancel the msg event handler if already present\n        if ( this.#MsgHandler ) this.cancelChange('msg', this.#MsgHandler)\n\n        if (this.started === true) {\n            log('info', 'Uib:start', 'Start function already called. Resetting Socket.IO and msg handler.')()\n        }\n\n        log('log', 'Uib:start', 'Cookies: ', this.cookies, `\\nClient ID: ${this.clientId}`)()\n        log('trace', 'Uib:start', 'ioNamespace: ', this.ioNamespace, `\\nioPath: ${this.ioPath}`)()\n\n        // Handle options\n        if (options) {\n            if (options.ioNamespace) this.set('ioNamespace', options.ioNamespace)\n            if (options.ioPath) this.set('ioPath', options.ioPath)\n            if (options.nopolling && this.socketOptions.transports[0] === 'polling') this.socketOptions.transports.shift()\n            // See below for handling of options.loadStylesheet\n        }\n\n        // Do we need to load styles?\n        if ( document.styleSheets.length >= 1 || (document.styleSheets.length === 1 && document.styleSheets[0].cssRules.length === 0) ) {\n            log('info', 'Uib:start', 'Styles already loaded so not loading uibuilder default styles.')()\n        } else {\n            if (options && options.loadStylesheet === false) log('info', 'Uib:start', 'No styles loaded & options.loadStylesheet === false.')()\n            else {\n                log('info', 'Uib:start', 'No styles loaded, loading uibuilder default styles.')()\n                this.loadStyleSrc(`${this.httpNodeRoot}/uibuilder/uib-brand.min.css`)\n            }\n        }\n\n        /** Handle specialist messages like reload and _ui -> Moved to _msgRcvdEvents */\n\n        // Track last browser navigation type: navigate, reload, back_forward, prerender\n        // TODO Needs more work - updates on navigation needed?\n        const [entry] = performance.getEntriesByType('navigation')\n        // @ts-ignore\n        this.set('lastNavType', entry.type)\n\n        // Start up (or restart) Socket.IO connections and listeners. Returns false if io not found\n        this.set('started', this._ioSetup())\n\n        if ( this.started === true ) {\n            log('trace', 'Uib:start', 'Start completed. Socket.IO client library loaded.')()\n        } else {\n            log('error', 'Uib:start', 'Start completed. ERROR: Socket.IO client library NOT LOADED.')()\n        }\n\n        // Watch for URL hash changes in case using a front-end router. Updates watched var `urlHash` and socket.io `auth.urlHash`\n        this._watchHashChanges()\n\n        // Check if Vue is present (used for dynamic UI processing)\n        if (window['Vue']) {\n            this.set('isVue', true)\n            try {\n                this.set('vueVersion', window['Vue'].version)\n            } catch (e) { }\n            log('trace', 'Uib:start', `VueJS is loaded. Version: ${this.vueVersion}`)()\n        } else {\n            log('trace', 'Uib:start', 'VueJS is not loaded.')()\n        }\n\n        // Check if DOMPurify library is loaded\n        if (window['DOMPurify']) {\n            this.set('purify', true)\n            log('trace', 'Uib:start', 'DOMPurify is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'DOMPurify is not loaded.')()\n        }\n        // Check if Markdown-IT library is loaded\n        if (window['markdownit']) {\n            this.set('markdown', true)\n            log('trace', 'Uib:start', 'Markdown-IT is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'Markdown-IT is not loaded.')()\n        }\n\n        // if (window['DOMPurify']) {\n        //     this.set('purify', true)\n        //     log('trace', 'Uib:start', 'DOMPurify is loaded.')\n        // } else {\n        //     log('trace', 'Uib:start', 'DOMPurify is not loaded.')\n        // }\n\n        // Set up msg listener for the optional showMsg\n        this.onChange('msg', (msg) => {\n            if (this.#isShowMsg === true) {\n                const eMsg = document.getElementById('uib_last_msg')\n                if (eMsg) eMsg.innerHTML = this.syntaxHighlight(msg)\n            }\n        })\n\n        this._dispatchCustomEvent('uibuilder:startComplete')\n    }\n\n    //#endregion -------- ------------ -------- //\n} // ==== End of Class Uib ====\n\n//#region --- Wrap up - get things started ---\n\n// Create an instance (we will only ever want one)\nconst uibuilder = new Uib()\n\n// Assign reference to the instance to the global `window` object\n// Only useful if loading via <script> tag - prefer loading via `import uibuilder from ...`\nif (!window['uibuilder']) {\n    window['uibuilder'] = uibuilder\n} else {\n    log('error', 'uibuilder.module.js', '`uibuilder` already assigned to window. Have you tried to load it more than once?')\n}\nif (!window['uib']) {\n    window['uib'] = uibuilder\n} else {\n    log('warn', 'uibuilder.module.js', '`uib` shortcut already assigned to window.')\n}\n\n// Assign `$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$`.\nif (!window['$']) {\n    /** @type {HTMLElement} */\n    window['$'] = window['uibuilder'].$ // document.querySelector.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` or `uib.$` instead.')\n}\n// Assign `$$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$$']) {\n    /** @type {HTMLElement} */\n    window['$$'] = window['uibuilder'].$$ // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` or `uib.$$` instead.')\n}\n\n// Assign `$ui` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$ui']) {\n    /** @type {HTMLElement} */\n    window['$ui'] = window['uibuilder'].$ui // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$ui`, it is already in use. Use `uibuilder.$ui` or `uib.$ui` instead.')\n}\n\n// Can import as `import uibuilder from ...` OR `import {uibuilder} from ...`\nexport { uibuilder }\nexport default uibuilder\n\n// Attempt to run start fn\nuibuilder.start()\n\n// Add the class as a new Custom Element to the window object\ncustomElements.define('uib-var', UibVar)\n\n//#endregion --- Wrap up ---\n\n// EOF\n", "/** A zero dependency web component that will display a managed uibuilder variable.\n *\n * Version: 0.0.1 2023-10-07\n *\n * ToDo:\n * -\n */\n/*\n  Copyright (c) 2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n// const template = document.createElement('template')\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<link type=\"text/css\" rel=\"stylesheet\" href=\"\"../uibuilder/uib-brand.min.css\"\" media=\"all\"><span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`\n// {/* <style>@import url(\"../uibuilder/uib-brand.min.css\");</style><span></span> */}\n// `\n\nexport default class UibVar extends HTMLElement {\n    //#region --- Class Properties ---\n    /** @type {string} Name of the uibuilder mangaged variable to use */\n    variable\n    /** Current value of the watched variable */\n    value\n    /** Whether to output if the variable is undefined */\n    undefined = false\n    /** Whether to send update value to Node-RED on change */\n    report = false\n    /** What is the value type */\n    type = 'plain'\n    /** what are the available types? */\n    types = ['plain', 'html', 'markdown', 'object']\n\n    /** Mini jQuery-like shadow dom selector (see constructor) */\n    $\n    \n    /** Holds a count of how many instances of this component are on the page */\n    static _iCount = 0\n    /** @type {Array<string>} List of all of the html attribs (props) listened to */\n    static props = ['name', 'id', 'variable', 'undefined', 'report', 'type']\n    //#endregion --- Class Properties ---\n\n    constructor() {\n        super()\n        this.shadow = this.attachShadow({ mode: 'open', delegatesFocus: true })\n            // .append(template.content.cloneNode(true))\n\n        this.$ = this.shadowRoot.querySelector.bind(this.shadowRoot)\n\n        // Apply external styles to the shadow dom\n        this.css = document.createElement(\"link\")\n        this.css.setAttribute(\"type\", \"text/css\")\n        this.css.setAttribute(\"rel\", \"stylesheet\")\n        this.css.setAttribute(\"href\", \"../uibuilder/uib-brand.min.css\")\n\n        this.dispatchEvent(new Event(`uib-var:construction`, { bubbles: true, composed: true }))\n    }\n\n    // Makes HTML attribute change watched\n    static get observedAttributes() {\n        return UibVar.props\n    }\n\n    /** NOTE: On initial startup, this is called for each watched attrib set in HTML - BEFORE connectedCallback is called  */\n    attributeChangedCallback(attrib, oldVal, newVal) {\n        if ( oldVal === newVal ) return\n\n        switch (attrib) {\n            case 'variable': {\n                if (newVal === '') throw new Error('[uib-var] Attribute \"variable\" MUST be set to a UIBUILDER managed variable name')\n                this.variable = newVal\n                this.doWatch()\n                break\n            }\n            case 'undefined': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.undefined = true\n                else this.undefined = false\n                break\n            }\n            case 'report': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.report = true\n                else this.report = false\n                break\n            }\n            case 'type': {\n                if (newVal === '' || !this.types.includes(newVal.toLowerCase())) this.type = 'plain'\n                else this.type = newVal\n                break\n            }\n\n            default: {\n                this[attrib] = newVal\n                break\n            }\n        }\n    } // --- end of attributeChangedCallback --- //\n\n    // Runs when an instance is added to the DOM\n    connectedCallback() {\n        // Make sure instance has an ID. Create an id from name or calculation if needed\n        if (!this.id) {\n            if (!this.name) this.name = this.getAttribute('name')\n            if (this.name) this.id = this.name.toLowerCase().replace(/\\s/g, '_')\n            else this.id = `uib-var-${++UibVar._iCount}`\n        }\n    }  // ---- end of connectedCallback ---- //\n\n    // Runs when an instance is removed from the DOM\n    // disconnectedCallback() {} // ---- end of disconnectedCallback ---- //\n\n    /** Process changes to the required uibuilder variable */\n    doWatch() {\n        if (!this.variable) throw new Error('No variable name provided')\n        // if (!window['uibuilder']) throw new Error('UIBUILDER client library not loaded - this component must be loaded AFTER the UIBUILDER library')\n\n        this.value = window['uibuilder'].get(this.variable)\n        this.varDom()\n\n        // Watch for changes in the variable\n        window['uibuilder'].onChange(this.variable, (val) => {\n            this.value = val\n            this.varDom()\n            if (this.report === true) window['uibuilder'].send({topic: this.variable, payload: this.value || undefined})\n        })\n    }\n\n    /** Convert this.value to DOM output */\n    varDom() {\n        // If user doesn't want to show undefined vars, allow the component slot to show instead\n        if (this.value === undefined && this.undefined !== true) { \n            this.shadow.innerHTML = '<slot></slot>'\n            return\n        }\n        \n        let val = this.value\n\n        // console.log('\uD83E\uDDEA varDOM: ', val, typeof val, this.type)\n\n        switch (this.type) {\n            case 'markdown': {\n                this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(window['uibuilder'].convertMarkdown(val))\n                break\n            }\n        \n            case 'object': {\n                // console.log(window['uibuilder'].syntaxHighlight(val))\n                this.shadow.innerHTML = `<pre class=\"syntax-highlight\">${window['uibuilder'].syntaxHighlight(val)}</pre>`\n                break\n            }\n        \n            case 'plain':\n            case 'html':\n            default: {\n                const t = typeof val\n                if (Array.isArray(val) || t === '[object Object]' || t === 'object') {\n                    try {\n                        this.shadow.innerHTML = JSON.stringify(val)\n                    } catch (e) {\n                        this.shadow.innerHTML = val\n                    }\n                } else {\n                    this.shadow.innerHTML = val\n                }\n                break\n            }\n        }\n\n        this.shadow.appendChild(this.css)\n        // this.$('span').innerHTML = window['uibuilder'].sanitiseHTML(val)\n        // this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(val)\n    }\n}\n\n// Add the class as a new Custom Element to the window object \n// customElements.define('uib-var', UibVar)\n", "const PACKET_TYPES = Object.create(null); // no Map = no polyfill\nPACKET_TYPES[\"open\"] = \"0\";\nPACKET_TYPES[\"close\"] = \"1\";\nPACKET_TYPES[\"ping\"] = \"2\";\nPACKET_TYPES[\"pong\"] = \"3\";\nPACKET_TYPES[\"message\"] = \"4\";\nPACKET_TYPES[\"upgrade\"] = \"5\";\nPACKET_TYPES[\"noop\"] = \"6\";\nconst PACKET_TYPES_REVERSE = Object.create(null);\nObject.keys(PACKET_TYPES).forEach(key => {\n    PACKET_TYPES_REVERSE[PACKET_TYPES[key]] = key;\n});\nconst ERROR_PACKET = { type: \"error\", data: \"parser error\" };\nexport { PACKET_TYPES, PACKET_TYPES_REVERSE, ERROR_PACKET };\n", "import { PACKET_TYPES } from \"./commons.js\";\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        Object.prototype.toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\n// ArrayBuffer.isView method is not defined in IE10\nconst isView = obj => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj && obj.buffer instanceof ArrayBuffer;\n};\nconst encodePacket = ({ type, data }, supportsBinary, callback) => {\n    if (withNativeBlob && data instanceof Blob) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(data, callback);\n        }\n    }\n    else if (withNativeArrayBuffer &&\n        (data instanceof ArrayBuffer || isView(data))) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(new Blob([data]), callback);\n        }\n    }\n    // plain string\n    return callback(PACKET_TYPES[type] + (data || \"\"));\n};\nconst encodeBlobAsBase64 = (data, callback) => {\n    const fileReader = new FileReader();\n    fileReader.onload = function () {\n        const content = fileReader.result.split(\",\")[1];\n        callback(\"b\" + (content || \"\"));\n    };\n    return fileReader.readAsDataURL(data);\n};\nfunction toArray(data) {\n    if (data instanceof Uint8Array) {\n        return data;\n    }\n    else if (data instanceof ArrayBuffer) {\n        return new Uint8Array(data);\n    }\n    else {\n        return new Uint8Array(data.buffer, data.byteOffset, data.byteLength);\n    }\n}\nlet TEXT_ENCODER;\nexport function encodePacketToBinary(packet, callback) {\n    if (withNativeBlob && packet.data instanceof Blob) {\n        return packet.data\n            .arrayBuffer()\n            .then(toArray)\n            .then(callback);\n    }\n    else if (withNativeArrayBuffer &&\n        (packet.data instanceof ArrayBuffer || isView(packet.data))) {\n        return callback(toArray(packet.data));\n    }\n    encodePacket(packet, false, encoded => {\n        if (!TEXT_ENCODER) {\n            TEXT_ENCODER = new TextEncoder();\n        }\n        callback(TEXT_ENCODER.encode(encoded));\n    });\n}\nexport { encodePacket };\n", "// imported from https://github.com/socketio/base64-arraybuffer\nconst chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';\n// Use a lookup table to find the index.\nconst lookup = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);\nfor (let i = 0; i < chars.length; i++) {\n    lookup[chars.charCodeAt(i)] = i;\n}\nexport const encode = (arraybuffer) => {\n    let bytes = new Uint8Array(arraybuffer), i, len = bytes.length, base64 = '';\n    for (i = 0; i < len; i += 3) {\n        base64 += chars[bytes[i] >> 2];\n        base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];\n        base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];\n        base64 += chars[bytes[i + 2] & 63];\n    }\n    if (len % 3 === 2) {\n        base64 = base64.substring(0, base64.length - 1) + '=';\n    }\n    else if (len % 3 === 1) {\n        base64 = base64.substring(0, base64.length - 2) + '==';\n    }\n    return base64;\n};\nexport const decode = (base64) => {\n    let bufferLength = base64.length * 0.75, len = base64.length, i, p = 0, encoded1, encoded2, encoded3, encoded4;\n    if (base64[base64.length - 1] === '=') {\n        bufferLength--;\n        if (base64[base64.length - 2] === '=') {\n            bufferLength--;\n        }\n    }\n    const arraybuffer = new ArrayBuffer(bufferLength), bytes = new Uint8Array(arraybuffer);\n    for (i = 0; i < len; i += 4) {\n        encoded1 = lookup[base64.charCodeAt(i)];\n        encoded2 = lookup[base64.charCodeAt(i + 1)];\n        encoded3 = lookup[base64.charCodeAt(i + 2)];\n        encoded4 = lookup[base64.charCodeAt(i + 3)];\n        bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n        bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n        bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n    }\n    return arraybuffer;\n};\n", "import { ERROR_PACKET, PACKET_TYPES_REVERSE } from \"./commons.js\";\nimport { decode } from \"./contrib/base64-arraybuffer.js\";\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nexport const decodePacket = (encodedPacket, binaryType) => {\n    if (typeof encodedPacket !== \"string\") {\n        return {\n            type: \"message\",\n            data: mapBinary(encodedPacket, binaryType)\n        };\n    }\n    const type = encodedPacket.charAt(0);\n    if (type === \"b\") {\n        return {\n            type: \"message\",\n            data: decodeBase64Packet(encodedPacket.substring(1), binaryType)\n        };\n    }\n    const packetType = PACKET_TYPES_REVERSE[type];\n    if (!packetType) {\n        return ERROR_PACKET;\n    }\n    return encodedPacket.length > 1\n        ? {\n            type: PACKET_TYPES_REVERSE[type],\n            data: encodedPacket.substring(1)\n        }\n        : {\n            type: PACKET_TYPES_REVERSE[type]\n        };\n};\nconst decodeBase64Packet = (data, binaryType) => {\n    if (withNativeArrayBuffer) {\n        const decoded = decode(data);\n        return mapBinary(decoded, binaryType);\n    }\n    else {\n        return { base64: true, data }; // fallback for old browsers\n    }\n};\nconst mapBinary = (data, binaryType) => {\n    switch (binaryType) {\n        case \"blob\":\n            if (data instanceof Blob) {\n                // from WebSocket + binaryType \"blob\"\n                return data;\n            }\n            else {\n                // from HTTP long-polling or WebTransport\n                return new Blob([data]);\n            }\n        case \"arraybuffer\":\n        default:\n            if (data instanceof ArrayBuffer) {\n                // from HTTP long-polling (base64) or WebSocket + binaryType \"arraybuffer\"\n                return data;\n            }\n            else {\n                // from WebTransport (Uint8Array)\n                return data.buffer;\n            }\n    }\n};\n", "import { encodePacket, encodePacketToBinary } from \"./encodePacket.js\";\nimport { decodePacket } from \"./decodePacket.js\";\nimport { ERROR_PACKET } from \"./commons.js\";\nconst SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text\nconst encodePayload = (packets, callback) => {\n    // some packets may be added to the array while encoding, so the initial length must be saved\n    const length = packets.length;\n    const encodedPackets = new Array(length);\n    let count = 0;\n    packets.forEach((packet, i) => {\n        // force base64 encoding for binary packets\n        encodePacket(packet, false, encodedPacket => {\n            encodedPackets[i] = encodedPacket;\n            if (++count === length) {\n                callback(encodedPackets.join(SEPARATOR));\n            }\n        });\n    });\n};\nconst decodePayload = (encodedPayload, binaryType) => {\n    const encodedPackets = encodedPayload.split(SEPARATOR);\n    const packets = [];\n    for (let i = 0; i < encodedPackets.length; i++) {\n        const decodedPacket = decodePacket(encodedPackets[i], binaryType);\n        packets.push(decodedPacket);\n        if (decodedPacket.type === \"error\") {\n            break;\n        }\n    }\n    return packets;\n};\nexport function createPacketEncoderStream() {\n    return new TransformStream({\n        transform(packet, controller) {\n            encodePacketToBinary(packet, encodedPacket => {\n                const payloadLength = encodedPacket.length;\n                let header;\n                // inspired by the WebSocket format: https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API/Writing_WebSocket_servers#decoding_payload_length\n                if (payloadLength < 126) {\n                    header = new Uint8Array(1);\n                    new DataView(header.buffer).setUint8(0, payloadLength);\n                }\n                else if (payloadLength < 65536) {\n                    header = new Uint8Array(3);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 126);\n                    view.setUint16(1, payloadLength);\n                }\n                else {\n                    header = new Uint8Array(9);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 127);\n                    view.setBigUint64(1, BigInt(payloadLength));\n                }\n                // first bit indicates whether the payload is plain text (0) or binary (1)\n                if (packet.data && typeof packet.data !== \"string\") {\n                    header[0] |= 0x80;\n                }\n                controller.enqueue(header);\n                controller.enqueue(encodedPacket);\n            });\n        }\n    });\n}\nlet TEXT_DECODER;\nfunction totalLength(chunks) {\n    return chunks.reduce((acc, chunk) => acc + chunk.length, 0);\n}\nfunction concatChunks(chunks, size) {\n    if (chunks[0].length === size) {\n        return chunks.shift();\n    }\n    const buffer = new Uint8Array(size);\n    let j = 0;\n    for (let i = 0; i < size; i++) {\n        buffer[i] = chunks[0][j++];\n        if (j === chunks[0].length) {\n            chunks.shift();\n            j = 0;\n        }\n    }\n    if (chunks.length && j < chunks[0].length) {\n        chunks[0] = chunks[0].slice(j);\n    }\n    return buffer;\n}\nexport function createPacketDecoderStream(maxPayload, binaryType) {\n    if (!TEXT_DECODER) {\n        TEXT_DECODER = new TextDecoder();\n    }\n    const chunks = [];\n    let state = 0 /* READ_HEADER */;\n    let expectedLength = -1;\n    let isBinary = false;\n    return new TransformStream({\n        transform(chunk, controller) {\n            chunks.push(chunk);\n            while (true) {\n                if (state === 0 /* READ_HEADER */) {\n                    if (totalLength(chunks) < 1) {\n                        break;\n                    }\n                    const header = concatChunks(chunks, 1);\n                    isBinary = (header[0] & 0x80) === 0x80;\n                    expectedLength = header[0] & 0x7f;\n                    if (expectedLength < 126) {\n                        state = 3 /* READ_PAYLOAD */;\n                    }\n                    else if (expectedLength === 126) {\n                        state = 1 /* READ_EXTENDED_LENGTH_16 */;\n                    }\n                    else {\n                        state = 2 /* READ_EXTENDED_LENGTH_64 */;\n                    }\n                }\n                else if (state === 1 /* READ_EXTENDED_LENGTH_16 */) {\n                    if (totalLength(chunks) < 2) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 2);\n                    expectedLength = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length).getUint16(0);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else if (state === 2 /* READ_EXTENDED_LENGTH_64 */) {\n                    if (totalLength(chunks) < 8) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 8);\n                    const view = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length);\n                    const n = view.getUint32(0);\n                    if (n > Math.pow(2, 53 - 32) - 1) {\n                        // the maximum safe integer in JavaScript is 2^53 - 1\n                        controller.enqueue(ERROR_PACKET);\n                        break;\n                    }\n                    expectedLength = n * Math.pow(2, 32) + view.getUint32(4);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else {\n                    if (totalLength(chunks) < expectedLength) {\n                        break;\n                    }\n                    const data = concatChunks(chunks, expectedLength);\n                    controller.enqueue(decodePacket(isBinary ? data : TEXT_DECODER.decode(data), binaryType));\n                    state = 0 /* READ_HEADER */;\n                }\n                if (expectedLength === 0 || expectedLength > maxPayload) {\n                    controller.enqueue(ERROR_PACKET);\n                    break;\n                }\n            }\n        }\n    });\n}\nexport const protocol = 4;\nexport { encodePacket, encodePayload, decodePacket, decodePayload };\n", "/**\n * Initialize a new `Emitter`.\n *\n * @api public\n */\n\nexport function Emitter(obj) {\n  if (obj) return mixin(obj);\n}\n\n/**\n * Mixin the emitter properties.\n *\n * @param {Object} obj\n * @return {Object}\n * @api private\n */\n\nfunction mixin(obj) {\n  for (var key in Emitter.prototype) {\n    obj[key] = Emitter.prototype[key];\n  }\n  return obj;\n}\n\n/**\n * Listen on the given `event` with `fn`.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.on =\nEmitter.prototype.addEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])\n    .push(fn);\n  return this;\n};\n\n/**\n * Adds an `event` listener that will be invoked a single\n * time then automatically removed.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.once = function(event, fn){\n  function on() {\n    this.off(event, on);\n    fn.apply(this, arguments);\n  }\n\n  on.fn = fn;\n  this.on(event, on);\n  return this;\n};\n\n/**\n * Remove the given callback for `event` or all\n * registered callbacks.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.off =\nEmitter.prototype.removeListener =\nEmitter.prototype.removeAllListeners =\nEmitter.prototype.removeEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n\n  // all\n  if (0 == arguments.length) {\n    this._callbacks = {};\n    return this;\n  }\n\n  // specific event\n  var callbacks = this._callbacks['$' + event];\n  if (!callbacks) return this;\n\n  // remove all handlers\n  if (1 == arguments.length) {\n    delete this._callbacks['$' + event];\n    return this;\n  }\n\n  // remove specific handler\n  var cb;\n  for (var i = 0; i < callbacks.length; i++) {\n    cb = callbacks[i];\n    if (cb === fn || cb.fn === fn) {\n      callbacks.splice(i, 1);\n      break;\n    }\n  }\n\n  // Remove event specific arrays for event types that no\n  // one is subscribed for to avoid memory leak.\n  if (callbacks.length === 0) {\n    delete this._callbacks['$' + event];\n  }\n\n  return this;\n};\n\n/**\n * Emit `event` with the given args.\n *\n * @param {String} event\n * @param {Mixed} ...\n * @return {Emitter}\n */\n\nEmitter.prototype.emit = function(event){\n  this._callbacks = this._callbacks || {};\n\n  var args = new Array(arguments.length - 1)\n    , callbacks = this._callbacks['$' + event];\n\n  for (var i = 1; i < arguments.length; i++) {\n    args[i - 1] = arguments[i];\n  }\n\n  if (callbacks) {\n    callbacks = callbacks.slice(0);\n    for (var i = 0, len = callbacks.length; i < len; ++i) {\n      callbacks[i].apply(this, args);\n    }\n  }\n\n  return this;\n};\n\n// alias used for reserved events (protected method)\nEmitter.prototype.emitReserved = Emitter.prototype.emit;\n\n/**\n * Return array of callbacks for `event`.\n *\n * @param {String} event\n * @return {Array}\n * @api public\n */\n\nEmitter.prototype.listeners = function(event){\n  this._callbacks = this._callbacks || {};\n  return this._callbacks['$' + event] || [];\n};\n\n/**\n * Check if this emitter has `event` handlers.\n *\n * @param {String} event\n * @return {Boolean}\n * @api public\n */\n\nEmitter.prototype.hasListeners = function(event){\n  return !! this.listeners(event).length;\n};\n", "export const globalThisShim = (() => {\n    if (typeof self !== \"undefined\") {\n        return self;\n    }\n    else if (typeof window !== \"undefined\") {\n        return window;\n    }\n    else {\n        return Function(\"return this\")();\n    }\n})();\n", "import { globalThisShim as globalThis } from \"./globalThis.js\";\nexport function pick(obj, ...attr) {\n    return attr.reduce((acc, k) => {\n        if (obj.hasOwnProperty(k)) {\n            acc[k] = obj[k];\n        }\n        return acc;\n    }, {});\n}\n// Keep a reference to the real timeout functions so they can be used when overridden\nconst NATIVE_SET_TIMEOUT = globalThis.setTimeout;\nconst NATIVE_CLEAR_TIMEOUT = globalThis.clearTimeout;\nexport function installTimerFunctions(obj, opts) {\n    if (opts.useNativeTimers) {\n        obj.setTimeoutFn = NATIVE_SET_TIMEOUT.bind(globalThis);\n        obj.clearTimeoutFn = NATIVE_CLEAR_TIMEOUT.bind(globalThis);\n    }\n    else {\n        obj.setTimeoutFn = globalThis.setTimeout.bind(globalThis);\n        obj.clearTimeoutFn = globalThis.clearTimeout.bind(globalThis);\n    }\n}\n// base64 encoded buffers are about 33% bigger (https://en.wikipedia.org/wiki/Base64)\nconst BASE64_OVERHEAD = 1.33;\n// we could also have used `new Blob([obj]).size`, but it isn't supported in IE9\nexport function byteLength(obj) {\n    if (typeof obj === \"string\") {\n        return utf8Length(obj);\n    }\n    // arraybuffer or blob\n    return Math.ceil((obj.byteLength || obj.size) * BASE64_OVERHEAD);\n}\nfunction utf8Length(str) {\n    let c = 0, length = 0;\n    for (let i = 0, l = str.length; i < l; i++) {\n        c = str.charCodeAt(i);\n        if (c < 0x80) {\n            length += 1;\n        }\n        else if (c < 0x800) {\n            length += 2;\n        }\n        else if (c < 0xd800 || c >= 0xe000) {\n            length += 3;\n        }\n        else {\n            i++;\n            length += 4;\n        }\n    }\n    return length;\n}\n", "// imported from https://github.com/galkn/querystring\n/**\n * Compiles a querystring\n * Returns string representation of the object\n *\n * @param {Object}\n * @api private\n */\nexport function encode(obj) {\n    let str = '';\n    for (let i in obj) {\n        if (obj.hasOwnProperty(i)) {\n            if (str.length)\n                str += '&';\n            str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);\n        }\n    }\n    return str;\n}\n/**\n * Parses a simple querystring into an object\n *\n * @param {String} qs\n * @api private\n */\nexport function decode(qs) {\n    let qry = {};\n    let pairs = qs.split('&');\n    for (let i = 0, l = pairs.length; i < l; i++) {\n        let pair = pairs[i].split('=');\n        qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);\n    }\n    return qry;\n}\n", "import { decodePacket } from \"engine.io-parser\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions } from \"./util.js\";\nimport { encode } from \"./contrib/parseqs.js\";\nexport class TransportError extends Error {\n    constructor(reason, description, context) {\n        super(reason);\n        this.description = description;\n        this.context = context;\n        this.type = \"TransportError\";\n    }\n}\nexport class Transport extends Emitter {\n    /**\n     * Transport abstract constructor.\n     *\n     * @param {Object} opts - options\n     * @protected\n     */\n    constructor(opts) {\n        super();\n        this.writable = false;\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.query = opts.query;\n        this.socket = opts.socket;\n    }\n    /**\n     * Emits an error.\n     *\n     * @param {String} reason\n     * @param description\n     * @param context - the error context\n     * @return {Transport} for chaining\n     * @protected\n     */\n    onError(reason, description, context) {\n        super.emitReserved(\"error\", new TransportError(reason, description, context));\n        return this;\n    }\n    /**\n     * Opens the transport.\n     */\n    open() {\n        this.readyState = \"opening\";\n        this.doOpen();\n        return this;\n    }\n    /**\n     * Closes the transport.\n     */\n    close() {\n        if (this.readyState === \"opening\" || this.readyState === \"open\") {\n            this.doClose();\n            this.onClose();\n        }\n        return this;\n    }\n    /**\n     * Sends multiple packets.\n     *\n     * @param {Array} packets\n     */\n    send(packets) {\n        if (this.readyState === \"open\") {\n            this.write(packets);\n        }\n        else {\n            // this might happen if the transport was silently closed in the beforeunload event handler\n        }\n    }\n    /**\n     * Called upon open\n     *\n     * @protected\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        this.writable = true;\n        super.emitReserved(\"open\");\n    }\n    /**\n     * Called with data.\n     *\n     * @param {String} data\n     * @protected\n     */\n    onData(data) {\n        const packet = decodePacket(data, this.socket.binaryType);\n        this.onPacket(packet);\n    }\n    /**\n     * Called with a decoded packet.\n     *\n     * @protected\n     */\n    onPacket(packet) {\n        super.emitReserved(\"packet\", packet);\n    }\n    /**\n     * Called upon close.\n     *\n     * @protected\n     */\n    onClose(details) {\n        this.readyState = \"closed\";\n        super.emitReserved(\"close\", details);\n    }\n    /**\n     * Pauses the transport, in order not to lose packets during an upgrade.\n     *\n     * @param onPause\n     */\n    pause(onPause) { }\n    createUri(schema, query = {}) {\n        return (schema +\n            \"://\" +\n            this._hostname() +\n            this._port() +\n            this.opts.path +\n            this._query(query));\n    }\n    _hostname() {\n        const hostname = this.opts.hostname;\n        return hostname.indexOf(\":\") === -1 ? hostname : \"[\" + hostname + \"]\";\n    }\n    _port() {\n        if (this.opts.port &&\n            ((this.opts.secure && Number(this.opts.port !== 443)) ||\n                (!this.opts.secure && Number(this.opts.port) !== 80))) {\n            return \":\" + this.opts.port;\n        }\n        else {\n            return \"\";\n        }\n    }\n    _query(query) {\n        const encodedQuery = encode(query);\n        return encodedQuery.length ? \"?\" + encodedQuery : \"\";\n    }\n}\n", "// imported from https://github.com/unshiftio/yeast\n'use strict';\nconst alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split(''), length = 64, map = {};\nlet seed = 0, i = 0, prev;\n/**\n * Return a string representing the specified number.\n *\n * @param {Number} num The number to convert.\n * @returns {String} The string representation of the number.\n * @api public\n */\nexport function encode(num) {\n    let encoded = '';\n    do {\n        encoded = alphabet[num % length] + encoded;\n        num = Math.floor(num / length);\n    } while (num > 0);\n    return encoded;\n}\n/**\n * Return the integer value specified by the given string.\n *\n * @param {String} str The string to convert.\n * @returns {Number} The integer value represented by the string.\n * @api public\n */\nexport function decode(str) {\n    let decoded = 0;\n    for (i = 0; i < str.length; i++) {\n        decoded = decoded * length + map[str.charAt(i)];\n    }\n    return decoded;\n}\n/**\n * Yeast: A tiny growing id generator.\n *\n * @returns {String} A unique id.\n * @api public\n */\nexport function yeast() {\n    const now = encode(+new Date());\n    if (now !== prev)\n        return seed = 0, prev = now;\n    return now + '.' + encode(seed++);\n}\n//\n// Map each character to its index.\n//\nfor (; i < length; i++)\n    map[alphabet[i]] = i;\n", "// imported from https://github.com/component/has-cors\nlet value = false;\ntry {\n    value = typeof XMLHttpRequest !== 'undefined' &&\n        'withCredentials' in new XMLHttpRequest();\n}\ncatch (err) {\n    // if XMLHttp support is disabled in IE then it will throw\n    // when trying to create\n}\nexport const hasCORS = value;\n", "// browser shim for xmlhttprequest module\nimport { hasCORS } from \"../contrib/has-cors.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nexport function XHR(opts) {\n    const xdomain = opts.xdomain;\n    // XMLHttpRequest can be disabled on IE\n    try {\n        if (\"undefined\" !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {\n            return new XMLHttpRequest();\n        }\n    }\n    catch (e) { }\n    if (!xdomain) {\n        try {\n            return new globalThis[[\"Active\"].concat(\"Object\").join(\"X\")](\"Microsoft.XMLHTTP\");\n        }\n        catch (e) { }\n    }\n}\nexport function createCookieJar() { }\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { encodePayload, decodePayload } from \"engine.io-parser\";\nimport { createCookieJar, XHR as XMLHttpRequest, } from \"./xmlhttprequest.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions, pick } from \"../util.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nfunction empty() { }\nconst hasXHR2 = (function () {\n    const xhr = new XMLHttpRequest({\n        xdomain: false,\n    });\n    return null != xhr.responseType;\n})();\nexport class Polling extends Transport {\n    /**\n     * XHR Polling constructor.\n     *\n     * @param {Object} opts\n     * @package\n     */\n    constructor(opts) {\n        super(opts);\n        this.polling = false;\n        if (typeof location !== \"undefined\") {\n            const isSSL = \"https:\" === location.protocol;\n            let port = location.port;\n            // some user agents have empty `location.port`\n            if (!port) {\n                port = isSSL ? \"443\" : \"80\";\n            }\n            this.xd =\n                (typeof location !== \"undefined\" &&\n                    opts.hostname !== location.hostname) ||\n                    port !== opts.port;\n        }\n        /**\n         * XHR supports binary\n         */\n        const forceBase64 = opts && opts.forceBase64;\n        this.supportsBinary = hasXHR2 && !forceBase64;\n        if (this.opts.withCredentials) {\n            this.cookieJar = createCookieJar();\n        }\n    }\n    get name() {\n        return \"polling\";\n    }\n    /**\n     * Opens the socket (triggers polling). We write a PING message to determine\n     * when the transport is open.\n     *\n     * @protected\n     */\n    doOpen() {\n        this.poll();\n    }\n    /**\n     * Pauses polling.\n     *\n     * @param {Function} onPause - callback upon buffers are flushed and transport is paused\n     * @package\n     */\n    pause(onPause) {\n        this.readyState = \"pausing\";\n        const pause = () => {\n            this.readyState = \"paused\";\n            onPause();\n        };\n        if (this.polling || !this.writable) {\n            let total = 0;\n            if (this.polling) {\n                total++;\n                this.once(\"pollComplete\", function () {\n                    --total || pause();\n                });\n            }\n            if (!this.writable) {\n                total++;\n                this.once(\"drain\", function () {\n                    --total || pause();\n                });\n            }\n        }\n        else {\n            pause();\n        }\n    }\n    /**\n     * Starts polling cycle.\n     *\n     * @private\n     */\n    poll() {\n        this.polling = true;\n        this.doPoll();\n        this.emitReserved(\"poll\");\n    }\n    /**\n     * Overloads onData to detect payloads.\n     *\n     * @protected\n     */\n    onData(data) {\n        const callback = (packet) => {\n            // if its the first message we consider the transport open\n            if (\"opening\" === this.readyState && packet.type === \"open\") {\n                this.onOpen();\n            }\n            // if its a close packet, we close the ongoing requests\n            if (\"close\" === packet.type) {\n                this.onClose({ description: \"transport closed by the server\" });\n                return false;\n            }\n            // otherwise bypass onData and handle the message\n            this.onPacket(packet);\n        };\n        // decode payload\n        decodePayload(data, this.socket.binaryType).forEach(callback);\n        // if an event did not trigger closing\n        if (\"closed\" !== this.readyState) {\n            // if we got data we're not polling\n            this.polling = false;\n            this.emitReserved(\"pollComplete\");\n            if (\"open\" === this.readyState) {\n                this.poll();\n            }\n            else {\n            }\n        }\n    }\n    /**\n     * For polling, send a close packet.\n     *\n     * @protected\n     */\n    doClose() {\n        const close = () => {\n            this.write([{ type: \"close\" }]);\n        };\n        if (\"open\" === this.readyState) {\n            close();\n        }\n        else {\n            // in case we're trying to close while\n            // handshaking is in progress (GH-164)\n            this.once(\"open\", close);\n        }\n    }\n    /**\n     * Writes a packets payload.\n     *\n     * @param {Array} packets - data packets\n     * @protected\n     */\n    write(packets) {\n        this.writable = false;\n        encodePayload(packets, (data) => {\n            this.doWrite(data, () => {\n                this.writable = true;\n                this.emitReserved(\"drain\");\n            });\n        });\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"https\" : \"http\";\n        const query = this.query || {};\n        // cache busting is forced\n        if (false !== this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        if (!this.supportsBinary && !query.sid) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Creates a request.\n     *\n     * @param {String} method\n     * @private\n     */\n    request(opts = {}) {\n        Object.assign(opts, { xd: this.xd, cookieJar: this.cookieJar }, this.opts);\n        return new Request(this.uri(), opts);\n    }\n    /**\n     * Sends data.\n     *\n     * @param {String} data to send.\n     * @param {Function} called upon flush.\n     * @private\n     */\n    doWrite(data, fn) {\n        const req = this.request({\n            method: \"POST\",\n            data: data,\n        });\n        req.on(\"success\", fn);\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr post error\", xhrStatus, context);\n        });\n    }\n    /**\n     * Starts a poll cycle.\n     *\n     * @private\n     */\n    doPoll() {\n        const req = this.request();\n        req.on(\"data\", this.onData.bind(this));\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr poll error\", xhrStatus, context);\n        });\n        this.pollXhr = req;\n    }\n}\nexport class Request extends Emitter {\n    /**\n     * Request constructor\n     *\n     * @param {Object} options\n     * @package\n     */\n    constructor(uri, opts) {\n        super();\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.method = opts.method || \"GET\";\n        this.uri = uri;\n        this.data = undefined !== opts.data ? opts.data : null;\n        this.create();\n    }\n    /**\n     * Creates the XHR object and sends the request.\n     *\n     * @private\n     */\n    create() {\n        var _a;\n        const opts = pick(this.opts, \"agent\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"autoUnref\");\n        opts.xdomain = !!this.opts.xd;\n        const xhr = (this.xhr = new XMLHttpRequest(opts));\n        try {\n            xhr.open(this.method, this.uri, true);\n            try {\n                if (this.opts.extraHeaders) {\n                    xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);\n                    for (let i in this.opts.extraHeaders) {\n                        if (this.opts.extraHeaders.hasOwnProperty(i)) {\n                            xhr.setRequestHeader(i, this.opts.extraHeaders[i]);\n                        }\n                    }\n                }\n            }\n            catch (e) { }\n            if (\"POST\" === this.method) {\n                try {\n                    xhr.setRequestHeader(\"Content-type\", \"text/plain;charset=UTF-8\");\n                }\n                catch (e) { }\n            }\n            try {\n                xhr.setRequestHeader(\"Accept\", \"*/*\");\n            }\n            catch (e) { }\n            (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.addCookies(xhr);\n            // ie6 check\n            if (\"withCredentials\" in xhr) {\n                xhr.withCredentials = this.opts.withCredentials;\n            }\n            if (this.opts.requestTimeout) {\n                xhr.timeout = this.opts.requestTimeout;\n            }\n            xhr.onreadystatechange = () => {\n                var _a;\n                if (xhr.readyState === 3) {\n                    (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.parseCookies(xhr);\n                }\n                if (4 !== xhr.readyState)\n                    return;\n                if (200 === xhr.status || 1223 === xhr.status) {\n                    this.onLoad();\n                }\n                else {\n                    // make sure the `error` event handler that's user-set\n                    // does not throw in the same tick and gets caught here\n                    this.setTimeoutFn(() => {\n                        this.onError(typeof xhr.status === \"number\" ? xhr.status : 0);\n                    }, 0);\n                }\n            };\n            xhr.send(this.data);\n        }\n        catch (e) {\n            // Need to defer since .create() is called directly from the constructor\n            // and thus the 'error' event can only be only bound *after* this exception\n            // occurs.  Therefore, also, we cannot throw here at all.\n            this.setTimeoutFn(() => {\n                this.onError(e);\n            }, 0);\n            return;\n        }\n        if (typeof document !== \"undefined\") {\n            this.index = Request.requestsCount++;\n            Request.requests[this.index] = this;\n        }\n    }\n    /**\n     * Called upon error.\n     *\n     * @private\n     */\n    onError(err) {\n        this.emitReserved(\"error\", err, this.xhr);\n        this.cleanup(true);\n    }\n    /**\n     * Cleans up house.\n     *\n     * @private\n     */\n    cleanup(fromError) {\n        if (\"undefined\" === typeof this.xhr || null === this.xhr) {\n            return;\n        }\n        this.xhr.onreadystatechange = empty;\n        if (fromError) {\n            try {\n                this.xhr.abort();\n            }\n            catch (e) { }\n        }\n        if (typeof document !== \"undefined\") {\n            delete Request.requests[this.index];\n        }\n        this.xhr = null;\n    }\n    /**\n     * Called upon load.\n     *\n     * @private\n     */\n    onLoad() {\n        const data = this.xhr.responseText;\n        if (data !== null) {\n            this.emitReserved(\"data\", data);\n            this.emitReserved(\"success\");\n            this.cleanup();\n        }\n    }\n    /**\n     * Aborts the request.\n     *\n     * @package\n     */\n    abort() {\n        this.cleanup();\n    }\n}\nRequest.requestsCount = 0;\nRequest.requests = {};\n/**\n * Aborts pending requests when unloading the window. This is needed to prevent\n * memory leaks (e.g. when using IE) and to ensure that no spurious error is\n * emitted.\n */\nif (typeof document !== \"undefined\") {\n    // @ts-ignore\n    if (typeof attachEvent === \"function\") {\n        // @ts-ignore\n        attachEvent(\"onunload\", unloadHandler);\n    }\n    else if (typeof addEventListener === \"function\") {\n        const terminationEvent = \"onpagehide\" in globalThis ? \"pagehide\" : \"unload\";\n        addEventListener(terminationEvent, unloadHandler, false);\n    }\n}\nfunction unloadHandler() {\n    for (let i in Request.requests) {\n        if (Request.requests.hasOwnProperty(i)) {\n            Request.requests[i].abort();\n        }\n    }\n}\n", "import { globalThisShim as globalThis } from \"../globalThis.js\";\nexport const nextTick = (() => {\n    const isPromiseAvailable = typeof Promise === \"function\" && typeof Promise.resolve === \"function\";\n    if (isPromiseAvailable) {\n        return (cb) => Promise.resolve().then(cb);\n    }\n    else {\n        return (cb, setTimeoutFn) => setTimeoutFn(cb, 0);\n    }\n})();\nexport const WebSocket = globalThis.WebSocket || globalThis.MozWebSocket;\nexport const usingBrowserWebSocket = true;\nexport const defaultBinaryType = \"arraybuffer\";\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { pick } from \"../util.js\";\nimport { nextTick, usingBrowserWebSocket, WebSocket, } from \"./websocket-constructor.js\";\nimport { encodePacket } from \"engine.io-parser\";\n// detect ReactNative environment\nconst isReactNative = typeof navigator !== \"undefined\" &&\n    typeof navigator.product === \"string\" &&\n    navigator.product.toLowerCase() === \"reactnative\";\nexport class WS extends Transport {\n    /**\n     * WebSocket transport constructor.\n     *\n     * @param {Object} opts - connection options\n     * @protected\n     */\n    constructor(opts) {\n        super(opts);\n        this.supportsBinary = !opts.forceBase64;\n    }\n    get name() {\n        return \"websocket\";\n    }\n    doOpen() {\n        if (!this.check()) {\n            // let probe timeout\n            return;\n        }\n        const uri = this.uri();\n        const protocols = this.opts.protocols;\n        // React Native only supports the 'headers' option, and will print a warning if anything else is passed\n        const opts = isReactNative\n            ? {}\n            : pick(this.opts, \"agent\", \"perMessageDeflate\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"localAddress\", \"protocolVersion\", \"origin\", \"maxPayload\", \"family\", \"checkServerIdentity\");\n        if (this.opts.extraHeaders) {\n            opts.headers = this.opts.extraHeaders;\n        }\n        try {\n            this.ws =\n                usingBrowserWebSocket && !isReactNative\n                    ? protocols\n                        ? new WebSocket(uri, protocols)\n                        : new WebSocket(uri)\n                    : new WebSocket(uri, protocols, opts);\n        }\n        catch (err) {\n            return this.emitReserved(\"error\", err);\n        }\n        this.ws.binaryType = this.socket.binaryType;\n        this.addEventListeners();\n    }\n    /**\n     * Adds event listeners to the socket\n     *\n     * @private\n     */\n    addEventListeners() {\n        this.ws.onopen = () => {\n            if (this.opts.autoUnref) {\n                this.ws._socket.unref();\n            }\n            this.onOpen();\n        };\n        this.ws.onclose = (closeEvent) => this.onClose({\n            description: \"websocket connection closed\",\n            context: closeEvent,\n        });\n        this.ws.onmessage = (ev) => this.onData(ev.data);\n        this.ws.onerror = (e) => this.onError(\"websocket error\", e);\n    }\n    write(packets) {\n        this.writable = false;\n        // encodePacket efficient as it uses WS framing\n        // no need for encodePayload\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            encodePacket(packet, this.supportsBinary, (data) => {\n                // always create a new object (GH-437)\n                const opts = {};\n                if (!usingBrowserWebSocket) {\n                    if (packet.options) {\n                        opts.compress = packet.options.compress;\n                    }\n                    if (this.opts.perMessageDeflate) {\n                        const len = \n                        // @ts-ignore\n                        \"string\" === typeof data ? Buffer.byteLength(data) : data.length;\n                        if (len < this.opts.perMessageDeflate.threshold) {\n                            opts.compress = false;\n                        }\n                    }\n                }\n                // Sometimes the websocket has already been closed but the browser didn't\n                // have a chance of informing us about it yet, in that case send will\n                // throw an error\n                try {\n                    if (usingBrowserWebSocket) {\n                        // TypeError is thrown when passing the second argument on Safari\n                        this.ws.send(data);\n                    }\n                    else {\n                        this.ws.send(data, opts);\n                    }\n                }\n                catch (e) {\n                }\n                if (lastPacket) {\n                    // fake drain\n                    // defer to next tick to allow Socket to clear writeBuffer\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        if (typeof this.ws !== \"undefined\") {\n            this.ws.close();\n            this.ws = null;\n        }\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"wss\" : \"ws\";\n        const query = this.query || {};\n        // append timestamp to URI\n        if (this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        // communicate binary support capabilities\n        if (!this.supportsBinary) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Feature detection for WebSocket.\n     *\n     * @return {Boolean} whether this transport is available.\n     * @private\n     */\n    check() {\n        return !!WebSocket;\n    }\n}\n", "import { Transport } from \"../transport.js\";\nimport { nextTick } from \"./websocket-constructor.js\";\nimport { createPacketDecoderStream, createPacketEncoderStream, } from \"engine.io-parser\";\nexport class WT extends Transport {\n    get name() {\n        return \"webtransport\";\n    }\n    doOpen() {\n        // @ts-ignore\n        if (typeof WebTransport !== \"function\") {\n            return;\n        }\n        // @ts-ignore\n        this.transport = new WebTransport(this.createUri(\"https\"), this.opts.transportOptions[this.name]);\n        this.transport.closed\n            .then(() => {\n            this.onClose();\n        })\n            .catch((err) => {\n            this.onError(\"webtransport error\", err);\n        });\n        // note: we could have used async/await, but that would require some additional polyfills\n        this.transport.ready.then(() => {\n            this.transport.createBidirectionalStream().then((stream) => {\n                const decoderStream = createPacketDecoderStream(Number.MAX_SAFE_INTEGER, this.socket.binaryType);\n                const reader = stream.readable.pipeThrough(decoderStream).getReader();\n                const encoderStream = createPacketEncoderStream();\n                encoderStream.readable.pipeTo(stream.writable);\n                this.writer = encoderStream.writable.getWriter();\n                const read = () => {\n                    reader\n                        .read()\n                        .then(({ done, value }) => {\n                        if (done) {\n                            return;\n                        }\n                        this.onPacket(value);\n                        read();\n                    })\n                        .catch((err) => {\n                    });\n                };\n                read();\n                const packet = { type: \"open\" };\n                if (this.query.sid) {\n                    packet.data = `{\"sid\":\"${this.query.sid}\"}`;\n                }\n                this.writer.write(packet).then(() => this.onOpen());\n            });\n        });\n    }\n    write(packets) {\n        this.writable = false;\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            this.writer.write(packet).then(() => {\n                if (lastPacket) {\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        var _a;\n        (_a = this.transport) === null || _a === void 0 ? void 0 : _a.close();\n    }\n}\n", "import { Polling } from \"./polling.js\";\nimport { WS } from \"./websocket.js\";\nimport { WT } from \"./webtransport.js\";\nexport const transports = {\n    websocket: WS,\n    webtransport: WT,\n    polling: Polling,\n};\n", "// imported from https://github.com/galkn/parseuri\n/**\n * Parses a URI\n *\n * Note: we could also have used the built-in URL object, but it isn't supported on all platforms.\n *\n * See:\n * - https://developer.mozilla.org/en-US/docs/Web/API/URL\n * - https://caniuse.com/url\n * - https://www.rfc-editor.org/rfc/rfc3986#appendix-B\n *\n * History of the parse() method:\n * - first commit: https://github.com/socketio/socket.io-client/commit/4ee1d5d94b3906a9c052b459f1a818b15f38f91c\n * - export into its own module: https://github.com/socketio/engine.io-client/commit/de2c561e4564efeb78f1bdb1ba39ef81b2822cb3\n * - reimport: https://github.com/socketio/engine.io-client/commit/df32277c3f6d622eec5ed09f493cae3f3391d242\n *\n * @author Steven Levithan <stevenlevithan.com> (MIT license)\n * @api private\n */\nconst re = /^(?:(?![^:@\\/?#]+:[^:@\\/]*@)(http|https|ws|wss):\\/\\/)?((?:(([^:@\\/?#]*)(?::([^:@\\/?#]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\\/?#]*)(?::(\\d*))?)(((\\/(?:[^?#](?![^?#\\/]*\\.[^?#\\/.]+(?:[?#]|$)))*\\/?)?([^?#\\/]*))(?:\\?([^#]*))?(?:#(.*))?)/;\nconst parts = [\n    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'\n];\nexport function parse(str) {\n    if (str.length > 2000) {\n        throw \"URI too long\";\n    }\n    const src = str, b = str.indexOf('['), e = str.indexOf(']');\n    if (b != -1 && e != -1) {\n        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);\n    }\n    let m = re.exec(str || ''), uri = {}, i = 14;\n    while (i--) {\n        uri[parts[i]] = m[i] || '';\n    }\n    if (b != -1 && e != -1) {\n        uri.source = src;\n        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');\n        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');\n        uri.ipv6uri = true;\n    }\n    uri.pathNames = pathNames(uri, uri['path']);\n    uri.queryKey = queryKey(uri, uri['query']);\n    return uri;\n}\nfunction pathNames(obj, path) {\n    const regx = /\\/{2,9}/g, names = path.replace(regx, \"/\").split(\"/\");\n    if (path.slice(0, 1) == '/' || path.length === 0) {\n        names.splice(0, 1);\n    }\n    if (path.slice(-1) == '/') {\n        names.splice(names.length - 1, 1);\n    }\n    return names;\n}\nfunction queryKey(uri, query) {\n    const data = {};\n    query.replace(/(?:^|&)([^&=]*)=?([^&]*)/g, function ($0, $1, $2) {\n        if ($1) {\n            data[$1] = $2;\n        }\n    });\n    return data;\n}\n", "import { transports } from \"./transports/index.js\";\nimport { installTimerFunctions, byteLength } from \"./util.js\";\nimport { decode } from \"./contrib/parseqs.js\";\nimport { parse } from \"./contrib/parseuri.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { protocol } from \"engine.io-parser\";\nimport { defaultBinaryType } from \"./transports/websocket-constructor.js\";\nexport class Socket extends Emitter {\n    /**\n     * Socket constructor.\n     *\n     * @param {String|Object} uri - uri or options\n     * @param {Object} opts - options\n     */\n    constructor(uri, opts = {}) {\n        super();\n        this.binaryType = defaultBinaryType;\n        this.writeBuffer = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = null;\n        }\n        if (uri) {\n            uri = parse(uri);\n            opts.hostname = uri.host;\n            opts.secure = uri.protocol === \"https\" || uri.protocol === \"wss\";\n            opts.port = uri.port;\n            if (uri.query)\n                opts.query = uri.query;\n        }\n        else if (opts.host) {\n            opts.hostname = parse(opts.host).host;\n        }\n        installTimerFunctions(this, opts);\n        this.secure =\n            null != opts.secure\n                ? opts.secure\n                : typeof location !== \"undefined\" && \"https:\" === location.protocol;\n        if (opts.hostname && !opts.port) {\n            // if no port is specified manually, use the protocol default\n            opts.port = this.secure ? \"443\" : \"80\";\n        }\n        this.hostname =\n            opts.hostname ||\n                (typeof location !== \"undefined\" ? location.hostname : \"localhost\");\n        this.port =\n            opts.port ||\n                (typeof location !== \"undefined\" && location.port\n                    ? location.port\n                    : this.secure\n                        ? \"443\"\n                        : \"80\");\n        this.transports = opts.transports || [\n            \"polling\",\n            \"websocket\",\n            \"webtransport\",\n        ];\n        this.writeBuffer = [];\n        this.prevBufferLen = 0;\n        this.opts = Object.assign({\n            path: \"/engine.io\",\n            agent: false,\n            withCredentials: false,\n            upgrade: true,\n            timestampParam: \"t\",\n            rememberUpgrade: false,\n            addTrailingSlash: true,\n            rejectUnauthorized: true,\n            perMessageDeflate: {\n                threshold: 1024,\n            },\n            transportOptions: {},\n            closeOnBeforeunload: false,\n        }, opts);\n        this.opts.path =\n            this.opts.path.replace(/\\/$/, \"\") +\n                (this.opts.addTrailingSlash ? \"/\" : \"\");\n        if (typeof this.opts.query === \"string\") {\n            this.opts.query = decode(this.opts.query);\n        }\n        // set on handshake\n        this.id = null;\n        this.upgrades = null;\n        this.pingInterval = null;\n        this.pingTimeout = null;\n        // set on heartbeat\n        this.pingTimeoutTimer = null;\n        if (typeof addEventListener === \"function\") {\n            if (this.opts.closeOnBeforeunload) {\n                // Firefox closes the connection when the \"beforeunload\" event is emitted but not Chrome. This event listener\n                // ensures every browser behaves the same (no \"disconnect\" event at the Socket.IO level when the page is\n                // closed/reloaded)\n                this.beforeunloadEventListener = () => {\n                    if (this.transport) {\n                        // silently close the transport\n                        this.transport.removeAllListeners();\n                        this.transport.close();\n                    }\n                };\n                addEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n            }\n            if (this.hostname !== \"localhost\") {\n                this.offlineEventListener = () => {\n                    this.onClose(\"transport close\", {\n                        description: \"network connection lost\",\n                    });\n                };\n                addEventListener(\"offline\", this.offlineEventListener, false);\n            }\n        }\n        this.open();\n    }\n    /**\n     * Creates transport of the given type.\n     *\n     * @param {String} name - transport name\n     * @return {Transport}\n     * @private\n     */\n    createTransport(name) {\n        const query = Object.assign({}, this.opts.query);\n        // append engine.io protocol identifier\n        query.EIO = protocol;\n        // transport name\n        query.transport = name;\n        // session id if we already have one\n        if (this.id)\n            query.sid = this.id;\n        const opts = Object.assign({}, this.opts, {\n            query,\n            socket: this,\n            hostname: this.hostname,\n            secure: this.secure,\n            port: this.port,\n        }, this.opts.transportOptions[name]);\n        return new transports[name](opts);\n    }\n    /**\n     * Initializes transport to use and starts probe.\n     *\n     * @private\n     */\n    open() {\n        let transport;\n        if (this.opts.rememberUpgrade &&\n            Socket.priorWebsocketSuccess &&\n            this.transports.indexOf(\"websocket\") !== -1) {\n            transport = \"websocket\";\n        }\n        else if (0 === this.transports.length) {\n            // Emit error on next tick so it can be listened to\n            this.setTimeoutFn(() => {\n                this.emitReserved(\"error\", \"No transports available\");\n            }, 0);\n            return;\n        }\n        else {\n            transport = this.transports[0];\n        }\n        this.readyState = \"opening\";\n        // Retry with the next transport if the transport is disabled (jsonp: false)\n        try {\n            transport = this.createTransport(transport);\n        }\n        catch (e) {\n            this.transports.shift();\n            this.open();\n            return;\n        }\n        transport.open();\n        this.setTransport(transport);\n    }\n    /**\n     * Sets the current transport. Disables the existing one (if any).\n     *\n     * @private\n     */\n    setTransport(transport) {\n        if (this.transport) {\n            this.transport.removeAllListeners();\n        }\n        // set up transport\n        this.transport = transport;\n        // set up transport listeners\n        transport\n            .on(\"drain\", this.onDrain.bind(this))\n            .on(\"packet\", this.onPacket.bind(this))\n            .on(\"error\", this.onError.bind(this))\n            .on(\"close\", (reason) => this.onClose(\"transport close\", reason));\n    }\n    /**\n     * Probes a transport.\n     *\n     * @param {String} name - transport name\n     * @private\n     */\n    probe(name) {\n        let transport = this.createTransport(name);\n        let failed = false;\n        Socket.priorWebsocketSuccess = false;\n        const onTransportOpen = () => {\n            if (failed)\n                return;\n            transport.send([{ type: \"ping\", data: \"probe\" }]);\n            transport.once(\"packet\", (msg) => {\n                if (failed)\n                    return;\n                if (\"pong\" === msg.type && \"probe\" === msg.data) {\n                    this.upgrading = true;\n                    this.emitReserved(\"upgrading\", transport);\n                    if (!transport)\n                        return;\n                    Socket.priorWebsocketSuccess = \"websocket\" === transport.name;\n                    this.transport.pause(() => {\n                        if (failed)\n                            return;\n                        if (\"closed\" === this.readyState)\n                            return;\n                        cleanup();\n                        this.setTransport(transport);\n                        transport.send([{ type: \"upgrade\" }]);\n                        this.emitReserved(\"upgrade\", transport);\n                        transport = null;\n                        this.upgrading = false;\n                        this.flush();\n                    });\n                }\n                else {\n                    const err = new Error(\"probe error\");\n                    // @ts-ignore\n                    err.transport = transport.name;\n                    this.emitReserved(\"upgradeError\", err);\n                }\n            });\n        };\n        function freezeTransport() {\n            if (failed)\n                return;\n            // Any callback called by transport should be ignored since now\n            failed = true;\n            cleanup();\n            transport.close();\n            transport = null;\n        }\n        // Handle any error that happens while probing\n        const onerror = (err) => {\n            const error = new Error(\"probe error: \" + err);\n            // @ts-ignore\n            error.transport = transport.name;\n            freezeTransport();\n            this.emitReserved(\"upgradeError\", error);\n        };\n        function onTransportClose() {\n            onerror(\"transport closed\");\n        }\n        // When the socket is closed while we're probing\n        function onclose() {\n            onerror(\"socket closed\");\n        }\n        // When the socket is upgraded while we're probing\n        function onupgrade(to) {\n            if (transport && to.name !== transport.name) {\n                freezeTransport();\n            }\n        }\n        // Remove all listeners on the transport and on self\n        const cleanup = () => {\n            transport.removeListener(\"open\", onTransportOpen);\n            transport.removeListener(\"error\", onerror);\n            transport.removeListener(\"close\", onTransportClose);\n            this.off(\"close\", onclose);\n            this.off(\"upgrading\", onupgrade);\n        };\n        transport.once(\"open\", onTransportOpen);\n        transport.once(\"error\", onerror);\n        transport.once(\"close\", onTransportClose);\n        this.once(\"close\", onclose);\n        this.once(\"upgrading\", onupgrade);\n        if (this.upgrades.indexOf(\"webtransport\") !== -1 &&\n            name !== \"webtransport\") {\n            // favor WebTransport\n            this.setTimeoutFn(() => {\n                if (!failed) {\n                    transport.open();\n                }\n            }, 200);\n        }\n        else {\n            transport.open();\n        }\n    }\n    /**\n     * Called when connection is deemed open.\n     *\n     * @private\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        Socket.priorWebsocketSuccess = \"websocket\" === this.transport.name;\n        this.emitReserved(\"open\");\n        this.flush();\n        // we check for `readyState` in case an `open`\n        // listener already closed the socket\n        if (\"open\" === this.readyState && this.opts.upgrade) {\n            let i = 0;\n            const l = this.upgrades.length;\n            for (; i < l; i++) {\n                this.probe(this.upgrades[i]);\n            }\n        }\n    }\n    /**\n     * Handles a packet.\n     *\n     * @private\n     */\n    onPacket(packet) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            this.emitReserved(\"packet\", packet);\n            // Socket is live - any packet counts\n            this.emitReserved(\"heartbeat\");\n            this.resetPingTimeout();\n            switch (packet.type) {\n                case \"open\":\n                    this.onHandshake(JSON.parse(packet.data));\n                    break;\n                case \"ping\":\n                    this.sendPacket(\"pong\");\n                    this.emitReserved(\"ping\");\n                    this.emitReserved(\"pong\");\n                    break;\n                case \"error\":\n                    const err = new Error(\"server error\");\n                    // @ts-ignore\n                    err.code = packet.data;\n                    this.onError(err);\n                    break;\n                case \"message\":\n                    this.emitReserved(\"data\", packet.data);\n                    this.emitReserved(\"message\", packet.data);\n                    break;\n            }\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon handshake completion.\n     *\n     * @param {Object} data - handshake obj\n     * @private\n     */\n    onHandshake(data) {\n        this.emitReserved(\"handshake\", data);\n        this.id = data.sid;\n        this.transport.query.sid = data.sid;\n        this.upgrades = this.filterUpgrades(data.upgrades);\n        this.pingInterval = data.pingInterval;\n        this.pingTimeout = data.pingTimeout;\n        this.maxPayload = data.maxPayload;\n        this.onOpen();\n        // In case open handler closes socket\n        if (\"closed\" === this.readyState)\n            return;\n        this.resetPingTimeout();\n    }\n    /**\n     * Sets and resets ping timeout timer based on server pings.\n     *\n     * @private\n     */\n    resetPingTimeout() {\n        this.clearTimeoutFn(this.pingTimeoutTimer);\n        this.pingTimeoutTimer = this.setTimeoutFn(() => {\n            this.onClose(\"ping timeout\");\n        }, this.pingInterval + this.pingTimeout);\n        if (this.opts.autoUnref) {\n            this.pingTimeoutTimer.unref();\n        }\n    }\n    /**\n     * Called on `drain` event\n     *\n     * @private\n     */\n    onDrain() {\n        this.writeBuffer.splice(0, this.prevBufferLen);\n        // setting prevBufferLen = 0 is very important\n        // for example, when upgrading, upgrade packet is sent over,\n        // and a nonzero prevBufferLen could cause problems on `drain`\n        this.prevBufferLen = 0;\n        if (0 === this.writeBuffer.length) {\n            this.emitReserved(\"drain\");\n        }\n        else {\n            this.flush();\n        }\n    }\n    /**\n     * Flush write buffers.\n     *\n     * @private\n     */\n    flush() {\n        if (\"closed\" !== this.readyState &&\n            this.transport.writable &&\n            !this.upgrading &&\n            this.writeBuffer.length) {\n            const packets = this.getWritablePackets();\n            this.transport.send(packets);\n            // keep track of current length of writeBuffer\n            // splice writeBuffer and callbackBuffer on `drain`\n            this.prevBufferLen = packets.length;\n            this.emitReserved(\"flush\");\n        }\n    }\n    /**\n     * Ensure the encoded size of the writeBuffer is below the maxPayload value sent by the server (only for HTTP\n     * long-polling)\n     *\n     * @private\n     */\n    getWritablePackets() {\n        const shouldCheckPayloadSize = this.maxPayload &&\n            this.transport.name === \"polling\" &&\n            this.writeBuffer.length > 1;\n        if (!shouldCheckPayloadSize) {\n            return this.writeBuffer;\n        }\n        let payloadSize = 1; // first packet type\n        for (let i = 0; i < this.writeBuffer.length; i++) {\n            const data = this.writeBuffer[i].data;\n            if (data) {\n                payloadSize += byteLength(data);\n            }\n            if (i > 0 && payloadSize > this.maxPayload) {\n                return this.writeBuffer.slice(0, i);\n            }\n            payloadSize += 2; // separator + packet type\n        }\n        return this.writeBuffer;\n    }\n    /**\n     * Sends a message.\n     *\n     * @param {String} msg - message.\n     * @param {Object} options.\n     * @param {Function} callback function.\n     * @return {Socket} for chaining.\n     */\n    write(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    send(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param {String} type: packet type.\n     * @param {String} data.\n     * @param {Object} options.\n     * @param {Function} fn - callback function.\n     * @private\n     */\n    sendPacket(type, data, options, fn) {\n        if (\"function\" === typeof data) {\n            fn = data;\n            data = undefined;\n        }\n        if (\"function\" === typeof options) {\n            fn = options;\n            options = null;\n        }\n        if (\"closing\" === this.readyState || \"closed\" === this.readyState) {\n            return;\n        }\n        options = options || {};\n        options.compress = false !== options.compress;\n        const packet = {\n            type: type,\n            data: data,\n            options: options,\n        };\n        this.emitReserved(\"packetCreate\", packet);\n        this.writeBuffer.push(packet);\n        if (fn)\n            this.once(\"flush\", fn);\n        this.flush();\n    }\n    /**\n     * Closes the connection.\n     */\n    close() {\n        const close = () => {\n            this.onClose(\"forced close\");\n            this.transport.close();\n        };\n        const cleanupAndClose = () => {\n            this.off(\"upgrade\", cleanupAndClose);\n            this.off(\"upgradeError\", cleanupAndClose);\n            close();\n        };\n        const waitForUpgrade = () => {\n            // wait for upgrade to finish since we can't send packets while pausing a transport\n            this.once(\"upgrade\", cleanupAndClose);\n            this.once(\"upgradeError\", cleanupAndClose);\n        };\n        if (\"opening\" === this.readyState || \"open\" === this.readyState) {\n            this.readyState = \"closing\";\n            if (this.writeBuffer.length) {\n                this.once(\"drain\", () => {\n                    if (this.upgrading) {\n                        waitForUpgrade();\n                    }\n                    else {\n                        close();\n                    }\n                });\n            }\n            else if (this.upgrading) {\n                waitForUpgrade();\n            }\n            else {\n                close();\n            }\n        }\n        return this;\n    }\n    /**\n     * Called upon transport error\n     *\n     * @private\n     */\n    onError(err) {\n        Socket.priorWebsocketSuccess = false;\n        this.emitReserved(\"error\", err);\n        this.onClose(\"transport error\", err);\n    }\n    /**\n     * Called upon transport close.\n     *\n     * @private\n     */\n    onClose(reason, description) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            // clear timers\n            this.clearTimeoutFn(this.pingTimeoutTimer);\n            // stop event from firing again for transport\n            this.transport.removeAllListeners(\"close\");\n            // ensure transport won't stay open\n            this.transport.close();\n            // ignore further transport communication\n            this.transport.removeAllListeners();\n            if (typeof removeEventListener === \"function\") {\n                removeEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n                removeEventListener(\"offline\", this.offlineEventListener, false);\n            }\n            // set ready state\n            this.readyState = \"closed\";\n            // clear session id\n            this.id = null;\n            // emit close event\n            this.emitReserved(\"close\", reason, description);\n            // clean buffers after, so users can still\n            // grab the buffers on `close` event\n            this.writeBuffer = [];\n            this.prevBufferLen = 0;\n        }\n    }\n    /**\n     * Filters upgrades, returning only those matching client transports.\n     *\n     * @param {Array} upgrades - server upgrades\n     * @private\n     */\n    filterUpgrades(upgrades) {\n        const filteredUpgrades = [];\n        let i = 0;\n        const j = upgrades.length;\n        for (; i < j; i++) {\n            if (~this.transports.indexOf(upgrades[i]))\n                filteredUpgrades.push(upgrades[i]);\n        }\n        return filteredUpgrades;\n    }\n}\nSocket.protocol = protocol;\n", "import { Socket } from \"./socket.js\";\nexport { Socket };\nexport const protocol = Socket.protocol;\nexport { Transport, TransportError } from \"./transport.js\";\nexport { transports } from \"./transports/index.js\";\nexport { installTimerFunctions } from \"./util.js\";\nexport { parse } from \"./contrib/parseuri.js\";\nexport { nextTick } from \"./transports/websocket-constructor.js\";\n", "import { parse } from \"engine.io-client\";\n/**\n * URL parser.\n *\n * @param uri - url\n * @param path - the request path of the connection\n * @param loc - An object meant to mimic window.location.\n *        Defaults to window.location.\n * @public\n */\nexport function url(uri, path = \"\", loc) {\n    let obj = uri;\n    // default to window.location\n    loc = loc || (typeof location !== \"undefined\" && location);\n    if (null == uri)\n        uri = loc.protocol + \"//\" + loc.host;\n    // relative path support\n    if (typeof uri === \"string\") {\n        if (\"/\" === uri.charAt(0)) {\n            if (\"/\" === uri.charAt(1)) {\n                uri = loc.protocol + uri;\n            }\n            else {\n                uri = loc.host + uri;\n            }\n        }\n        if (!/^(https?|wss?):\\/\\//.test(uri)) {\n            if (\"undefined\" !== typeof loc) {\n                uri = loc.protocol + \"//\" + uri;\n            }\n            else {\n                uri = \"https://\" + uri;\n            }\n        }\n        // parse\n        obj = parse(uri);\n    }\n    // make sure we treat `localhost:80` and `localhost` equally\n    if (!obj.port) {\n        if (/^(http|ws)$/.test(obj.protocol)) {\n            obj.port = \"80\";\n        }\n        else if (/^(http|ws)s$/.test(obj.protocol)) {\n            obj.port = \"443\";\n        }\n    }\n    obj.path = obj.path || \"/\";\n    const ipv6 = obj.host.indexOf(\":\") !== -1;\n    const host = ipv6 ? \"[\" + obj.host + \"]\" : obj.host;\n    // define unique id\n    obj.id = obj.protocol + \"://\" + host + \":\" + obj.port + path;\n    // define href\n    obj.href =\n        obj.protocol +\n            \"://\" +\n            host +\n            (loc && loc.port === obj.port ? \"\" : \":\" + obj.port);\n    return obj;\n}\n", "import { Emitter } from \"@socket.io/component-emitter\";\nimport { deconstructPacket, reconstructPacket } from \"./binary.js\";\nimport { isBinary, hasBinary } from \"./is-binary.js\";\n/**\n * These strings must not be used as event names, as they have a special meaning.\n */\nconst RESERVED_EVENTS = [\n    \"connect\",\n    \"connect_error\",\n    \"disconnect\",\n    \"disconnecting\",\n    \"newListener\",\n    \"removeListener\", // used by the Node.js EventEmitter\n];\n/**\n * Protocol version.\n *\n * @public\n */\nexport const protocol = 5;\nexport var PacketType;\n(function (PacketType) {\n    PacketType[PacketType[\"CONNECT\"] = 0] = \"CONNECT\";\n    PacketType[PacketType[\"DISCONNECT\"] = 1] = \"DISCONNECT\";\n    PacketType[PacketType[\"EVENT\"] = 2] = \"EVENT\";\n    PacketType[PacketType[\"ACK\"] = 3] = \"ACK\";\n    PacketType[PacketType[\"CONNECT_ERROR\"] = 4] = \"CONNECT_ERROR\";\n    PacketType[PacketType[\"BINARY_EVENT\"] = 5] = \"BINARY_EVENT\";\n    PacketType[PacketType[\"BINARY_ACK\"] = 6] = \"BINARY_ACK\";\n})(PacketType || (PacketType = {}));\n/**\n * A socket.io Encoder instance\n */\nexport class Encoder {\n    /**\n     * Encoder constructor\n     *\n     * @param {function} replacer - custom replacer to pass down to JSON.parse\n     */\n    constructor(replacer) {\n        this.replacer = replacer;\n    }\n    /**\n     * Encode a packet as a single string if non-binary, or as a\n     * buffer sequence, depending on packet type.\n     *\n     * @param {Object} obj - packet object\n     */\n    encode(obj) {\n        if (obj.type === PacketType.EVENT || obj.type === PacketType.ACK) {\n            if (hasBinary(obj)) {\n                return this.encodeAsBinary({\n                    type: obj.type === PacketType.EVENT\n                        ? PacketType.BINARY_EVENT\n                        : PacketType.BINARY_ACK,\n                    nsp: obj.nsp,\n                    data: obj.data,\n                    id: obj.id,\n                });\n            }\n        }\n        return [this.encodeAsString(obj)];\n    }\n    /**\n     * Encode packet as string.\n     */\n    encodeAsString(obj) {\n        // first is type\n        let str = \"\" + obj.type;\n        // attachments if we have them\n        if (obj.type === PacketType.BINARY_EVENT ||\n            obj.type === PacketType.BINARY_ACK) {\n            str += obj.attachments + \"-\";\n        }\n        // if we have a namespace other than `/`\n        // we append it followed by a comma `,`\n        if (obj.nsp && \"/\" !== obj.nsp) {\n            str += obj.nsp + \",\";\n        }\n        // immediately followed by the id\n        if (null != obj.id) {\n            str += obj.id;\n        }\n        // json data\n        if (null != obj.data) {\n            str += JSON.stringify(obj.data, this.replacer);\n        }\n        return str;\n    }\n    /**\n     * Encode packet as 'buffer sequence' by removing blobs, and\n     * deconstructing packet into object with placeholders and\n     * a list of buffers.\n     */\n    encodeAsBinary(obj) {\n        const deconstruction = deconstructPacket(obj);\n        const pack = this.encodeAsString(deconstruction.packet);\n        const buffers = deconstruction.buffers;\n        buffers.unshift(pack); // add packet info to beginning of data list\n        return buffers; // write all the buffers\n    }\n}\n// see https://stackoverflow.com/questions/8511281/check-if-a-value-is-an-object-in-javascript\nfunction isObject(value) {\n    return Object.prototype.toString.call(value) === \"[object Object]\";\n}\n/**\n * A socket.io Decoder instance\n *\n * @return {Object} decoder\n */\nexport class Decoder extends Emitter {\n    /**\n     * Decoder constructor\n     *\n     * @param {function} reviver - custom reviver to pass down to JSON.stringify\n     */\n    constructor(reviver) {\n        super();\n        this.reviver = reviver;\n    }\n    /**\n     * Decodes an encoded packet string into packet JSON.\n     *\n     * @param {String} obj - encoded packet\n     */\n    add(obj) {\n        let packet;\n        if (typeof obj === \"string\") {\n            if (this.reconstructor) {\n                throw new Error(\"got plaintext data when reconstructing a packet\");\n            }\n            packet = this.decodeString(obj);\n            const isBinaryEvent = packet.type === PacketType.BINARY_EVENT;\n            if (isBinaryEvent || packet.type === PacketType.BINARY_ACK) {\n                packet.type = isBinaryEvent ? PacketType.EVENT : PacketType.ACK;\n                // binary packet's json\n                this.reconstructor = new BinaryReconstructor(packet);\n                // no attachments, labeled binary but no binary data to follow\n                if (packet.attachments === 0) {\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n            else {\n                // non-binary full packet\n                super.emitReserved(\"decoded\", packet);\n            }\n        }\n        else if (isBinary(obj) || obj.base64) {\n            // raw binary data\n            if (!this.reconstructor) {\n                throw new Error(\"got binary data when not reconstructing a packet\");\n            }\n            else {\n                packet = this.reconstructor.takeBinaryData(obj);\n                if (packet) {\n                    // received final buffer\n                    this.reconstructor = null;\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n        }\n        else {\n            throw new Error(\"Unknown type: \" + obj);\n        }\n    }\n    /**\n     * Decode a packet String (JSON data)\n     *\n     * @param {String} str\n     * @return {Object} packet\n     */\n    decodeString(str) {\n        let i = 0;\n        // look up type\n        const p = {\n            type: Number(str.charAt(0)),\n        };\n        if (PacketType[p.type] === undefined) {\n            throw new Error(\"unknown packet type \" + p.type);\n        }\n        // look up attachments if type binary\n        if (p.type === PacketType.BINARY_EVENT ||\n            p.type === PacketType.BINARY_ACK) {\n            const start = i + 1;\n            while (str.charAt(++i) !== \"-\" && i != str.length) { }\n            const buf = str.substring(start, i);\n            if (buf != Number(buf) || str.charAt(i) !== \"-\") {\n                throw new Error(\"Illegal attachments\");\n            }\n            p.attachments = Number(buf);\n        }\n        // look up namespace (if any)\n        if (\"/\" === str.charAt(i + 1)) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (\",\" === c)\n                    break;\n                if (i === str.length)\n                    break;\n            }\n            p.nsp = str.substring(start, i);\n        }\n        else {\n            p.nsp = \"/\";\n        }\n        // look up id\n        const next = str.charAt(i + 1);\n        if (\"\" !== next && Number(next) == next) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (null == c || Number(c) != c) {\n                    --i;\n                    break;\n                }\n                if (i === str.length)\n                    break;\n            }\n            p.id = Number(str.substring(start, i + 1));\n        }\n        // look up json data\n        if (str.charAt(++i)) {\n            const payload = this.tryParse(str.substr(i));\n            if (Decoder.isPayloadValid(p.type, payload)) {\n                p.data = payload;\n            }\n            else {\n                throw new Error(\"invalid payload\");\n            }\n        }\n        return p;\n    }\n    tryParse(str) {\n        try {\n            return JSON.parse(str, this.reviver);\n        }\n        catch (e) {\n            return false;\n        }\n    }\n    static isPayloadValid(type, payload) {\n        switch (type) {\n            case PacketType.CONNECT:\n                return isObject(payload);\n            case PacketType.DISCONNECT:\n                return payload === undefined;\n            case PacketType.CONNECT_ERROR:\n                return typeof payload === \"string\" || isObject(payload);\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                return (Array.isArray(payload) &&\n                    (typeof payload[0] === \"number\" ||\n                        (typeof payload[0] === \"string\" &&\n                            RESERVED_EVENTS.indexOf(payload[0]) === -1)));\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                return Array.isArray(payload);\n        }\n    }\n    /**\n     * Deallocates a parser's resources\n     */\n    destroy() {\n        if (this.reconstructor) {\n            this.reconstructor.finishedReconstruction();\n            this.reconstructor = null;\n        }\n    }\n}\n/**\n * A manager of a binary event's 'buffer sequence'. Should\n * be constructed whenever a packet of type BINARY_EVENT is\n * decoded.\n *\n * @param {Object} packet\n * @return {BinaryReconstructor} initialized reconstructor\n */\nclass BinaryReconstructor {\n    constructor(packet) {\n        this.packet = packet;\n        this.buffers = [];\n        this.reconPack = packet;\n    }\n    /**\n     * Method to be called when binary data received from connection\n     * after a BINARY_EVENT packet.\n     *\n     * @param {Buffer | ArrayBuffer} binData - the raw binary data received\n     * @return {null | Object} returns null if more binary data is expected or\n     *   a reconstructed packet object if all buffers have been received.\n     */\n    takeBinaryData(binData) {\n        this.buffers.push(binData);\n        if (this.buffers.length === this.reconPack.attachments) {\n            // done with buffer list\n            const packet = reconstructPacket(this.reconPack, this.buffers);\n            this.finishedReconstruction();\n            return packet;\n        }\n        return null;\n    }\n    /**\n     * Cleans up binary packet reconstruction variables.\n     */\n    finishedReconstruction() {\n        this.reconPack = null;\n        this.buffers = [];\n    }\n}\n", "const withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nconst isView = (obj) => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj.buffer instanceof ArrayBuffer;\n};\nconst toString = Object.prototype.toString;\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeFile = typeof File === \"function\" ||\n    (typeof File !== \"undefined\" &&\n        toString.call(File) === \"[object FileConstructor]\");\n/**\n * Returns true if obj is a Buffer, an ArrayBuffer, a Blob or a File.\n *\n * @private\n */\nexport function isBinary(obj) {\n    return ((withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj))) ||\n        (withNativeBlob && obj instanceof Blob) ||\n        (withNativeFile && obj instanceof File));\n}\nexport function hasBinary(obj, toJSON) {\n    if (!obj || typeof obj !== \"object\") {\n        return false;\n    }\n    if (Array.isArray(obj)) {\n        for (let i = 0, l = obj.length; i < l; i++) {\n            if (hasBinary(obj[i])) {\n                return true;\n            }\n        }\n        return false;\n    }\n    if (isBinary(obj)) {\n        return true;\n    }\n    if (obj.toJSON &&\n        typeof obj.toJSON === \"function\" &&\n        arguments.length === 1) {\n        return hasBinary(obj.toJSON(), true);\n    }\n    for (const key in obj) {\n        if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {\n            return true;\n        }\n    }\n    return false;\n}\n", "import { isBinary } from \"./is-binary.js\";\n/**\n * Replaces every Buffer | ArrayBuffer | Blob | File in packet with a numbered placeholder.\n *\n * @param {Object} packet - socket.io event packet\n * @return {Object} with deconstructed packet and list of buffers\n * @public\n */\nexport function deconstructPacket(packet) {\n    const buffers = [];\n    const packetData = packet.data;\n    const pack = packet;\n    pack.data = _deconstructPacket(packetData, buffers);\n    pack.attachments = buffers.length; // number of binary 'attachments'\n    return { packet: pack, buffers: buffers };\n}\nfunction _deconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (isBinary(data)) {\n        const placeholder = { _placeholder: true, num: buffers.length };\n        buffers.push(data);\n        return placeholder;\n    }\n    else if (Array.isArray(data)) {\n        const newData = new Array(data.length);\n        for (let i = 0; i < data.length; i++) {\n            newData[i] = _deconstructPacket(data[i], buffers);\n        }\n        return newData;\n    }\n    else if (typeof data === \"object\" && !(data instanceof Date)) {\n        const newData = {};\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                newData[key] = _deconstructPacket(data[key], buffers);\n            }\n        }\n        return newData;\n    }\n    return data;\n}\n/**\n * Reconstructs a binary packet from its placeholder packet and buffers\n *\n * @param {Object} packet - event packet with placeholders\n * @param {Array} buffers - binary buffers to put in placeholder positions\n * @return {Object} reconstructed packet\n * @public\n */\nexport function reconstructPacket(packet, buffers) {\n    packet.data = _reconstructPacket(packet.data, buffers);\n    delete packet.attachments; // no longer useful\n    return packet;\n}\nfunction _reconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (data && data._placeholder === true) {\n        const isIndexValid = typeof data.num === \"number\" &&\n            data.num >= 0 &&\n            data.num < buffers.length;\n        if (isIndexValid) {\n            return buffers[data.num]; // appropriate buffer (should be natural order anyway)\n        }\n        else {\n            throw new Error(\"illegal attachments\");\n        }\n    }\n    else if (Array.isArray(data)) {\n        for (let i = 0; i < data.length; i++) {\n            data[i] = _reconstructPacket(data[i], buffers);\n        }\n    }\n    else if (typeof data === \"object\") {\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                data[key] = _reconstructPacket(data[key], buffers);\n            }\n        }\n    }\n    return data;\n}\n", "export function on(obj, ev, fn) {\n    obj.on(ev, fn);\n    return function subDestroy() {\n        obj.off(ev, fn);\n    };\n}\n", "import { PacketType } from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\n/**\n * Internal events.\n * These events can't be emitted by the user.\n */\nconst RESERVED_EVENTS = Object.freeze({\n    connect: 1,\n    connect_error: 1,\n    disconnect: 1,\n    disconnecting: 1,\n    // EventEmitter reserved events: https://nodejs.org/api/events.html#events_event_newlistener\n    newListener: 1,\n    removeListener: 1,\n});\n/**\n * A Socket is the fundamental class for interacting with the server.\n *\n * A Socket belongs to a certain Namespace (by default /) and uses an underlying {@link Manager} to communicate.\n *\n * @example\n * const socket = io();\n *\n * socket.on(\"connect\", () => {\n *   console.log(\"connected\");\n * });\n *\n * // send an event to the server\n * socket.emit(\"foo\", \"bar\");\n *\n * socket.on(\"foobar\", () => {\n *   // an event was received from the server\n * });\n *\n * // upon disconnection\n * socket.on(\"disconnect\", (reason) => {\n *   console.log(`disconnected due to ${reason}`);\n * });\n */\nexport class Socket extends Emitter {\n    /**\n     * `Socket` constructor.\n     */\n    constructor(io, nsp, opts) {\n        super();\n        /**\n         * Whether the socket is currently connected to the server.\n         *\n         * @example\n         * const socket = io();\n         *\n         * socket.on(\"connect\", () => {\n         *   console.log(socket.connected); // true\n         * });\n         *\n         * socket.on(\"disconnect\", () => {\n         *   console.log(socket.connected); // false\n         * });\n         */\n        this.connected = false;\n        /**\n         * Whether the connection state was recovered after a temporary disconnection. In that case, any missed packets will\n         * be transmitted by the server.\n         */\n        this.recovered = false;\n        /**\n         * Buffer for packets received before the CONNECT packet\n         */\n        this.receiveBuffer = [];\n        /**\n         * Buffer for packets that will be sent once the socket is connected\n         */\n        this.sendBuffer = [];\n        /**\n         * The queue of packets to be sent with retry in case of failure.\n         *\n         * Packets are sent one by one, each waiting for the server acknowledgement, in order to guarantee the delivery order.\n         * @private\n         */\n        this._queue = [];\n        /**\n         * A sequence to generate the ID of the {@link QueuedPacket}.\n         * @private\n         */\n        this._queueSeq = 0;\n        this.ids = 0;\n        this.acks = {};\n        this.flags = {};\n        this.io = io;\n        this.nsp = nsp;\n        if (opts && opts.auth) {\n            this.auth = opts.auth;\n        }\n        this._opts = Object.assign({}, opts);\n        if (this.io._autoConnect)\n            this.open();\n    }\n    /**\n     * Whether the socket is currently disconnected\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"connect\", () => {\n     *   console.log(socket.disconnected); // false\n     * });\n     *\n     * socket.on(\"disconnect\", () => {\n     *   console.log(socket.disconnected); // true\n     * });\n     */\n    get disconnected() {\n        return !this.connected;\n    }\n    /**\n     * Subscribe to open, close and packet events\n     *\n     * @private\n     */\n    subEvents() {\n        if (this.subs)\n            return;\n        const io = this.io;\n        this.subs = [\n            on(io, \"open\", this.onopen.bind(this)),\n            on(io, \"packet\", this.onpacket.bind(this)),\n            on(io, \"error\", this.onerror.bind(this)),\n            on(io, \"close\", this.onclose.bind(this)),\n        ];\n    }\n    /**\n     * Whether the Socket will try to reconnect when its Manager connects or reconnects.\n     *\n     * @example\n     * const socket = io();\n     *\n     * console.log(socket.active); // true\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   if (reason === \"io server disconnect\") {\n     *     // the disconnection was initiated by the server, you need to manually reconnect\n     *     console.log(socket.active); // false\n     *   }\n     *   // else the socket will automatically try to reconnect\n     *   console.log(socket.active); // true\n     * });\n     */\n    get active() {\n        return !!this.subs;\n    }\n    /**\n     * \"Opens\" the socket.\n     *\n     * @example\n     * const socket = io({\n     *   autoConnect: false\n     * });\n     *\n     * socket.connect();\n     */\n    connect() {\n        if (this.connected)\n            return this;\n        this.subEvents();\n        if (!this.io[\"_reconnecting\"])\n            this.io.open(); // ensure open\n        if (\"open\" === this.io._readyState)\n            this.onopen();\n        return this;\n    }\n    /**\n     * Alias for {@link connect()}.\n     */\n    open() {\n        return this.connect();\n    }\n    /**\n     * Sends a `message` event.\n     *\n     * This method mimics the WebSocket.send() method.\n     *\n     * @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send\n     *\n     * @example\n     * socket.send(\"hello\");\n     *\n     * // this is equivalent to\n     * socket.emit(\"message\", \"hello\");\n     *\n     * @return self\n     */\n    send(...args) {\n        args.unshift(\"message\");\n        this.emit.apply(this, args);\n        return this;\n    }\n    /**\n     * Override `emit`.\n     * If the event is in `events`, it's emitted normally.\n     *\n     * @example\n     * socket.emit(\"hello\", \"world\");\n     *\n     * // all serializable datastructures are supported (no need to call JSON.stringify)\n     * socket.emit(\"hello\", 1, \"2\", { 3: [\"4\"], 5: Uint8Array.from([6]) });\n     *\n     * // with an acknowledgement from the server\n     * socket.emit(\"hello\", \"world\", (val) => {\n     *   // ...\n     * });\n     *\n     * @return self\n     */\n    emit(ev, ...args) {\n        if (RESERVED_EVENTS.hasOwnProperty(ev)) {\n            throw new Error('\"' + ev.toString() + '\" is a reserved event name');\n        }\n        args.unshift(ev);\n        if (this._opts.retries && !this.flags.fromQueue && !this.flags.volatile) {\n            this._addToQueue(args);\n            return this;\n        }\n        const packet = {\n            type: PacketType.EVENT,\n            data: args,\n        };\n        packet.options = {};\n        packet.options.compress = this.flags.compress !== false;\n        // event ack callback\n        if (\"function\" === typeof args[args.length - 1]) {\n            const id = this.ids++;\n            const ack = args.pop();\n            this._registerAckCallback(id, ack);\n            packet.id = id;\n        }\n        const isTransportWritable = this.io.engine &&\n            this.io.engine.transport &&\n            this.io.engine.transport.writable;\n        const discardPacket = this.flags.volatile && (!isTransportWritable || !this.connected);\n        if (discardPacket) {\n        }\n        else if (this.connected) {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        }\n        else {\n            this.sendBuffer.push(packet);\n        }\n        this.flags = {};\n        return this;\n    }\n    /**\n     * @private\n     */\n    _registerAckCallback(id, ack) {\n        var _a;\n        const timeout = (_a = this.flags.timeout) !== null && _a !== void 0 ? _a : this._opts.ackTimeout;\n        if (timeout === undefined) {\n            this.acks[id] = ack;\n            return;\n        }\n        // @ts-ignore\n        const timer = this.io.setTimeoutFn(() => {\n            delete this.acks[id];\n            for (let i = 0; i < this.sendBuffer.length; i++) {\n                if (this.sendBuffer[i].id === id) {\n                    this.sendBuffer.splice(i, 1);\n                }\n            }\n            ack.call(this, new Error(\"operation has timed out\"));\n        }, timeout);\n        this.acks[id] = (...args) => {\n            // @ts-ignore\n            this.io.clearTimeoutFn(timer);\n            ack.apply(this, [null, ...args]);\n        };\n    }\n    /**\n     * Emits an event and waits for an acknowledgement\n     *\n     * @example\n     * // without timeout\n     * const response = await socket.emitWithAck(\"hello\", \"world\");\n     *\n     * // with a specific timeout\n     * try {\n     *   const response = await socket.timeout(1000).emitWithAck(\"hello\", \"world\");\n     * } catch (err) {\n     *   // the server did not acknowledge the event in the given delay\n     * }\n     *\n     * @return a Promise that will be fulfilled when the server acknowledges the event\n     */\n    emitWithAck(ev, ...args) {\n        // the timeout flag is optional\n        const withErr = this.flags.timeout !== undefined || this._opts.ackTimeout !== undefined;\n        return new Promise((resolve, reject) => {\n            args.push((arg1, arg2) => {\n                if (withErr) {\n                    return arg1 ? reject(arg1) : resolve(arg2);\n                }\n                else {\n                    return resolve(arg1);\n                }\n            });\n            this.emit(ev, ...args);\n        });\n    }\n    /**\n     * Add the packet to the queue.\n     * @param args\n     * @private\n     */\n    _addToQueue(args) {\n        let ack;\n        if (typeof args[args.length - 1] === \"function\") {\n            ack = args.pop();\n        }\n        const packet = {\n            id: this._queueSeq++,\n            tryCount: 0,\n            pending: false,\n            args,\n            flags: Object.assign({ fromQueue: true }, this.flags),\n        };\n        args.push((err, ...responseArgs) => {\n            if (packet !== this._queue[0]) {\n                // the packet has already been acknowledged\n                return;\n            }\n            const hasError = err !== null;\n            if (hasError) {\n                if (packet.tryCount > this._opts.retries) {\n                    this._queue.shift();\n                    if (ack) {\n                        ack(err);\n                    }\n                }\n            }\n            else {\n                this._queue.shift();\n                if (ack) {\n                    ack(null, ...responseArgs);\n                }\n            }\n            packet.pending = false;\n            return this._drainQueue();\n        });\n        this._queue.push(packet);\n        this._drainQueue();\n    }\n    /**\n     * Send the first packet of the queue, and wait for an acknowledgement from the server.\n     * @param force - whether to resend a packet that has not been acknowledged yet\n     *\n     * @private\n     */\n    _drainQueue(force = false) {\n        if (!this.connected || this._queue.length === 0) {\n            return;\n        }\n        const packet = this._queue[0];\n        if (packet.pending && !force) {\n            return;\n        }\n        packet.pending = true;\n        packet.tryCount++;\n        this.flags = packet.flags;\n        this.emit.apply(this, packet.args);\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param packet\n     * @private\n     */\n    packet(packet) {\n        packet.nsp = this.nsp;\n        this.io._packet(packet);\n    }\n    /**\n     * Called upon engine `open`.\n     *\n     * @private\n     */\n    onopen() {\n        if (typeof this.auth == \"function\") {\n            this.auth((data) => {\n                this._sendConnectPacket(data);\n            });\n        }\n        else {\n            this._sendConnectPacket(this.auth);\n        }\n    }\n    /**\n     * Sends a CONNECT packet to initiate the Socket.IO session.\n     *\n     * @param data\n     * @private\n     */\n    _sendConnectPacket(data) {\n        this.packet({\n            type: PacketType.CONNECT,\n            data: this._pid\n                ? Object.assign({ pid: this._pid, offset: this._lastOffset }, data)\n                : data,\n        });\n    }\n    /**\n     * Called upon engine or manager `error`.\n     *\n     * @param err\n     * @private\n     */\n    onerror(err) {\n        if (!this.connected) {\n            this.emitReserved(\"connect_error\", err);\n        }\n    }\n    /**\n     * Called upon engine `close`.\n     *\n     * @param reason\n     * @param description\n     * @private\n     */\n    onclose(reason, description) {\n        this.connected = false;\n        delete this.id;\n        this.emitReserved(\"disconnect\", reason, description);\n    }\n    /**\n     * Called with socket packet.\n     *\n     * @param packet\n     * @private\n     */\n    onpacket(packet) {\n        const sameNamespace = packet.nsp === this.nsp;\n        if (!sameNamespace)\n            return;\n        switch (packet.type) {\n            case PacketType.CONNECT:\n                if (packet.data && packet.data.sid) {\n                    this.onconnect(packet.data.sid, packet.data.pid);\n                }\n                else {\n                    this.emitReserved(\"connect_error\", new Error(\"It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)\"));\n                }\n                break;\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                this.onevent(packet);\n                break;\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                this.onack(packet);\n                break;\n            case PacketType.DISCONNECT:\n                this.ondisconnect();\n                break;\n            case PacketType.CONNECT_ERROR:\n                this.destroy();\n                const err = new Error(packet.data.message);\n                // @ts-ignore\n                err.data = packet.data.data;\n                this.emitReserved(\"connect_error\", err);\n                break;\n        }\n    }\n    /**\n     * Called upon a server event.\n     *\n     * @param packet\n     * @private\n     */\n    onevent(packet) {\n        const args = packet.data || [];\n        if (null != packet.id) {\n            args.push(this.ack(packet.id));\n        }\n        if (this.connected) {\n            this.emitEvent(args);\n        }\n        else {\n            this.receiveBuffer.push(Object.freeze(args));\n        }\n    }\n    emitEvent(args) {\n        if (this._anyListeners && this._anyListeners.length) {\n            const listeners = this._anyListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, args);\n            }\n        }\n        super.emit.apply(this, args);\n        if (this._pid && args.length && typeof args[args.length - 1] === \"string\") {\n            this._lastOffset = args[args.length - 1];\n        }\n    }\n    /**\n     * Produces an ack callback to emit with an event.\n     *\n     * @private\n     */\n    ack(id) {\n        const self = this;\n        let sent = false;\n        return function (...args) {\n            // prevent double callbacks\n            if (sent)\n                return;\n            sent = true;\n            self.packet({\n                type: PacketType.ACK,\n                id: id,\n                data: args,\n            });\n        };\n    }\n    /**\n     * Called upon a server acknowlegement.\n     *\n     * @param packet\n     * @private\n     */\n    onack(packet) {\n        const ack = this.acks[packet.id];\n        if (\"function\" === typeof ack) {\n            ack.apply(this, packet.data);\n            delete this.acks[packet.id];\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon server connect.\n     *\n     * @private\n     */\n    onconnect(id, pid) {\n        this.id = id;\n        this.recovered = pid && this._pid === pid;\n        this._pid = pid; // defined only if connection state recovery is enabled\n        this.connected = true;\n        this.emitBuffered();\n        this.emitReserved(\"connect\");\n        this._drainQueue(true);\n    }\n    /**\n     * Emit buffered events (received and emitted).\n     *\n     * @private\n     */\n    emitBuffered() {\n        this.receiveBuffer.forEach((args) => this.emitEvent(args));\n        this.receiveBuffer = [];\n        this.sendBuffer.forEach((packet) => {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        });\n        this.sendBuffer = [];\n    }\n    /**\n     * Called upon server disconnect.\n     *\n     * @private\n     */\n    ondisconnect() {\n        this.destroy();\n        this.onclose(\"io server disconnect\");\n    }\n    /**\n     * Called upon forced client/server side disconnections,\n     * this method ensures the manager stops tracking us and\n     * that reconnections don't get triggered for this.\n     *\n     * @private\n     */\n    destroy() {\n        if (this.subs) {\n            // clean subscriptions to avoid reconnections\n            this.subs.forEach((subDestroy) => subDestroy());\n            this.subs = undefined;\n        }\n        this.io[\"_destroy\"](this);\n    }\n    /**\n     * Disconnects the socket manually. In that case, the socket will not try to reconnect.\n     *\n     * If this is the last active Socket instance of the {@link Manager}, the low-level connection will be closed.\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   // console.log(reason); prints \"io client disconnect\"\n     * });\n     *\n     * socket.disconnect();\n     *\n     * @return self\n     */\n    disconnect() {\n        if (this.connected) {\n            this.packet({ type: PacketType.DISCONNECT });\n        }\n        // remove socket from pool\n        this.destroy();\n        if (this.connected) {\n            // fire events\n            this.onclose(\"io client disconnect\");\n        }\n        return this;\n    }\n    /**\n     * Alias for {@link disconnect()}.\n     *\n     * @return self\n     */\n    close() {\n        return this.disconnect();\n    }\n    /**\n     * Sets the compress flag.\n     *\n     * @example\n     * socket.compress(false).emit(\"hello\");\n     *\n     * @param compress - if `true`, compresses the sending data\n     * @return self\n     */\n    compress(compress) {\n        this.flags.compress = compress;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the event message will be dropped when this socket is not\n     * ready to send messages.\n     *\n     * @example\n     * socket.volatile.emit(\"hello\"); // the server may or may not receive it\n     *\n     * @returns self\n     */\n    get volatile() {\n        this.flags.volatile = true;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the callback will be called with an error when the\n     * given number of milliseconds have elapsed without an acknowledgement from the server:\n     *\n     * @example\n     * socket.timeout(5000).emit(\"my-event\", (err) => {\n     *   if (err) {\n     *     // the server did not acknowledge the event in the given delay\n     *   }\n     * });\n     *\n     * @returns self\n     */\n    timeout(timeout) {\n        this.flags.timeout = timeout;\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * @example\n     * socket.onAny((event, ...args) => {\n     *   console.log(`got ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * @example\n     * socket.prependAny((event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * }\n     *\n     * socket.onAny(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAny(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAny();\n     *\n     * @param listener\n     */\n    offAny(listener) {\n        if (!this._anyListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAny() {\n        return this._anyListeners || [];\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.onAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.prependAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * }\n     *\n     * socket.onAnyOutgoing(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAnyOutgoing(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAnyOutgoing();\n     *\n     * @param [listener] - the catch-all listener (optional)\n     */\n    offAnyOutgoing(listener) {\n        if (!this._anyOutgoingListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyOutgoingListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyOutgoingListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAnyOutgoing() {\n        return this._anyOutgoingListeners || [];\n    }\n    /**\n     * Notify the listeners for each packet sent\n     *\n     * @param packet\n     *\n     * @private\n     */\n    notifyOutgoingListeners(packet) {\n        if (this._anyOutgoingListeners && this._anyOutgoingListeners.length) {\n            const listeners = this._anyOutgoingListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, packet.data);\n            }\n        }\n    }\n}\n", "/**\n * Initialize backoff timer with `opts`.\n *\n * - `min` initial timeout in milliseconds [100]\n * - `max` max timeout [10000]\n * - `jitter` [0]\n * - `factor` [2]\n *\n * @param {Object} opts\n * @api public\n */\nexport function Backoff(opts) {\n    opts = opts || {};\n    this.ms = opts.min || 100;\n    this.max = opts.max || 10000;\n    this.factor = opts.factor || 2;\n    this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;\n    this.attempts = 0;\n}\n/**\n * Return the backoff duration.\n *\n * @return {Number}\n * @api public\n */\nBackoff.prototype.duration = function () {\n    var ms = this.ms * Math.pow(this.factor, this.attempts++);\n    if (this.jitter) {\n        var rand = Math.random();\n        var deviation = Math.floor(rand * this.jitter * ms);\n        ms = (Math.floor(rand * 10) & 1) == 0 ? ms - deviation : ms + deviation;\n    }\n    return Math.min(ms, this.max) | 0;\n};\n/**\n * Reset the number of attempts.\n *\n * @api public\n */\nBackoff.prototype.reset = function () {\n    this.attempts = 0;\n};\n/**\n * Set the minimum duration\n *\n * @api public\n */\nBackoff.prototype.setMin = function (min) {\n    this.ms = min;\n};\n/**\n * Set the maximum duration\n *\n * @api public\n */\nBackoff.prototype.setMax = function (max) {\n    this.max = max;\n};\n/**\n * Set the jitter\n *\n * @api public\n */\nBackoff.prototype.setJitter = function (jitter) {\n    this.jitter = jitter;\n};\n", "import { Socket as Engine, installTimerFunctions, nextTick, } from \"engine.io-client\";\nimport { Socket } from \"./socket.js\";\nimport * as parser from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Backoff } from \"./contrib/backo2.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\nexport class Manager extends Emitter {\n    constructor(uri, opts) {\n        var _a;\n        super();\n        this.nsps = {};\n        this.subs = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = undefined;\n        }\n        opts = opts || {};\n        opts.path = opts.path || \"/socket.io\";\n        this.opts = opts;\n        installTimerFunctions(this, opts);\n        this.reconnection(opts.reconnection !== false);\n        this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);\n        this.reconnectionDelay(opts.reconnectionDelay || 1000);\n        this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);\n        this.randomizationFactor((_a = opts.randomizationFactor) !== null && _a !== void 0 ? _a : 0.5);\n        this.backoff = new Backoff({\n            min: this.reconnectionDelay(),\n            max: this.reconnectionDelayMax(),\n            jitter: this.randomizationFactor(),\n        });\n        this.timeout(null == opts.timeout ? 20000 : opts.timeout);\n        this._readyState = \"closed\";\n        this.uri = uri;\n        const _parser = opts.parser || parser;\n        this.encoder = new _parser.Encoder();\n        this.decoder = new _parser.Decoder();\n        this._autoConnect = opts.autoConnect !== false;\n        if (this._autoConnect)\n            this.open();\n    }\n    reconnection(v) {\n        if (!arguments.length)\n            return this._reconnection;\n        this._reconnection = !!v;\n        return this;\n    }\n    reconnectionAttempts(v) {\n        if (v === undefined)\n            return this._reconnectionAttempts;\n        this._reconnectionAttempts = v;\n        return this;\n    }\n    reconnectionDelay(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelay;\n        this._reconnectionDelay = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMin(v);\n        return this;\n    }\n    randomizationFactor(v) {\n        var _a;\n        if (v === undefined)\n            return this._randomizationFactor;\n        this._randomizationFactor = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setJitter(v);\n        return this;\n    }\n    reconnectionDelayMax(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelayMax;\n        this._reconnectionDelayMax = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMax(v);\n        return this;\n    }\n    timeout(v) {\n        if (!arguments.length)\n            return this._timeout;\n        this._timeout = v;\n        return this;\n    }\n    /**\n     * Starts trying to reconnect if reconnection is enabled and we have not\n     * started reconnecting yet\n     *\n     * @private\n     */\n    maybeReconnectOnOpen() {\n        // Only try to reconnect if it's the first time we're connecting\n        if (!this._reconnecting &&\n            this._reconnection &&\n            this.backoff.attempts === 0) {\n            // keeps reconnection from firing twice for the same reconnection loop\n            this.reconnect();\n        }\n    }\n    /**\n     * Sets the current transport `socket`.\n     *\n     * @param {Function} fn - optional, callback\n     * @return self\n     * @public\n     */\n    open(fn) {\n        if (~this._readyState.indexOf(\"open\"))\n            return this;\n        this.engine = new Engine(this.uri, this.opts);\n        const socket = this.engine;\n        const self = this;\n        this._readyState = \"opening\";\n        this.skipReconnect = false;\n        // emit `open`\n        const openSubDestroy = on(socket, \"open\", function () {\n            self.onopen();\n            fn && fn();\n        });\n        const onError = (err) => {\n            this.cleanup();\n            this._readyState = \"closed\";\n            this.emitReserved(\"error\", err);\n            if (fn) {\n                fn(err);\n            }\n            else {\n                // Only do this if there is no fn to handle the error\n                this.maybeReconnectOnOpen();\n            }\n        };\n        // emit `error`\n        const errorSub = on(socket, \"error\", onError);\n        if (false !== this._timeout) {\n            const timeout = this._timeout;\n            // set timer\n            const timer = this.setTimeoutFn(() => {\n                openSubDestroy();\n                onError(new Error(\"timeout\"));\n                socket.close();\n   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on(this.decoder, \"decoded\", this.ondecoded.bind(this)));\n    }\n    /**\n     * Called upon a ping.\n     *\n     * @private\n     */\n    onping() {\n        this.emitReserved(\"ping\");\n    }\n    /**\n     * Called with data.\n     *\n     * @private\n     */\n    ondata(data) {\n        try {\n            this.decoder.add(data);\n        }\n        catch (e) {\n            this.onclose(\"parse error\", e);\n        }\n    }\n    /**\n     * Called when parser fully decodes a packet.\n     *\n     * @private\n     */\n    ondecoded(packet) {\n        // the nextTick call prevents an exception in a user-provided event listener from triggering a disconnection due to a \"parse error\"\n        nextTick(() => {\n            this.emitReserved(\"packet\", packet);\n        }, this.setTimeoutFn);\n    }\n    /**\n     * Called upon socket error.\n     *\n     * @private\n     */\n    onerror(err) {\n        this.emitReserved(\"error\", err);\n    }\n    /**\n     * Creates a new socket for the given `nsp`.\n     *\n     * @return {Socket}\n     * @public\n     */\n    socket(nsp, opts) {\n        let socket = this.nsps[nsp];\n        if (!socket) {\n            socket = new Socket(this, nsp, opts);\n            this.nsps[nsp] = socket;\n        }\n        else if (this._autoConnect && !socket.active) {\n            socket.connect();\n        }\n        return socket;\n    }\n    /**\n     * Called upon a socket close.\n     *\n     * @param socket\n     * @private\n     */\n    _destroy(socket) {\n        const nsps = Object.keys(this.nsps);\n        for (const nsp of nsps) {\n            const socket = this.nsps[nsp];\n            if (socket.active) {\n                return;\n            }\n        }\n        this._close();\n    }\n    /**\n     * Writes a packet.\n     *\n     * @param packet\n     * @private\n     */\n    _packet(packet) {\n        const encodedPackets = this.encoder.encode(packet);\n        for (let i = 0; i < encodedPackets.length; i++) {\n            this.engine.write(encodedPackets[i], packet.options);\n        }\n    }\n    /**\n     * Clean up transport subscriptions and packet buffer.\n     *\n     * @private\n     */\n    cleanup() {\n        this.subs.forEach((subDestroy) => subDestroy());\n        this.subs.length = 0;\n        this.decoder.destroy();\n    }\n    /**\n     * Close the current socket.\n     *\n     * @private\n     */\n    _close() {\n        this.skipReconnect = true;\n        this._reconnecting = false;\n        this.onclose(\"forced close\");\n        if (this.engine)\n            this.engine.close();\n    }\n    /**\n     * Alias for close()\n     *\n     * @private\n     */\n    disconnect() {\n        return this._close();\n    }\n    /**\n     * Called upon engine close.\n     *\n     * @private\n     */\n    onclose(reason, description) {\n        this.cleanup();\n        this.backoff.reset();\n        this._readyState = \"closed\";\n        this.emitReserved(\"close\", reason, description);\n        if (this._reconnection && !this.skipReconnect) {\n            this.reconnect();\n        }\n    }\n    /**\n     * Attempt a reconnection.\n     *\n     * @private\n     */\n    reconnect() {\n        if (this._reconnecting || this.skipReconnect)\n            return this;\n        const self = this;\n        if (this.backoff.attempts >= this._reconnectionAttempts) {\n            this.backoff.reset();\n            this.emitReserved(\"reconnect_failed\");\n            this._reconnecting = false;\n        }\n        else {\n            const delay = this.backoff.duration();\n            this._reconnecting = true;\n            const timer = this.setTimeoutFn(() => {\n                if (self.skipReconnect)\n                    return;\n                this.emitReserved(\"reconnect_attempt\", self.backoff.attempts);\n                // check again for the case socket closed in above events\n                if (self.skipReconnect)\n                    return;\n                self.open((err) => {\n                    if (err) {\n                        self._reconnecting = false;\n                        self.reconnect();\n                        this.emitReserved(\"reconnect_error\", err);\n                    }\n                    else {\n                        self.onreconnect();\n                    }\n                });\n            }, delay);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n    }\n    /**\n     * Called upon successful reconnect.\n     *\n     * @private\n     */\n    onreconnect() {\n        const attempt = this.backoff.attempts;\n        this._reconnecting = false;\n        this.backoff.reset();\n        this.emitReserved(\"reconnect\", attempt);\n    }\n}\n", "import { url } from \"./url.js\";\nimport { Manager } from \"./manager.js\";\nimport { Socket } from \"./socket.js\";\n/**\n * Managers cache.\n */\nconst cache = {};\nfunction lookup(uri, opts) {\n    if (typeof uri === \"object\") {\n        opts = uri;\n        uri = undefined;\n    }\n    opts = opts || {};\n    const parsed = url(uri, opts.path || \"/socket.io\");\n    const source = parsed.source;\n    const id = parsed.id;\n    const path = parsed.path;\n    const sameNamespace = cache[id] && path in cache[id][\"nsps\"];\n    const newConnection = opts.forceNew ||\n        opts[\"force new connection\"] ||\n        false === opts.multiplex ||\n        sameNamespace;\n    let io;\n    if (newConnection) {\n        io = new Manager(source, opts);\n    }\n    else {\n        if (!cache[id]) {\n            cache[id] = new Manager(source, opts);\n        }\n        io = cache[id];\n    }\n    if (parsed.query && !opts.query) {\n        opts.query = parsed.queryKey;\n    }\n    return io.socket(parsed.path, opts);\n}\n// so that \"lookup\" can be used both as a function (e.g. `io(...)`) and as a\n// namespace (e.g. `io.connect(...)`), for backward compatibility\nObject.assign(lookup, {\n    Manager,\n    Socket,\n    io: lookup,\n    connect: lookup,\n});\n/**\n * Protocol version.\n *\n * @public\n */\nexport { protocol } from \"socket.io-parser\";\n/**\n * Expose constructors for standalone build.\n *\n * @public\n */\nexport { Manager, Socket, lookup as io, lookup as connect, lookup as default, };\n"],
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   "names": ["require_ui", "__commonJSMin", "exports", "module", "_a", "Ui", "win", "extLog", "jsonHighlight", "__publicField", "config", "notify", "resolve", "reject", "ev", "ui", "isRecurse", "compToAdd", "i", "newEl", "elParent", "el", "comp", "attrib", "type", "evt", "err", "prop", "parentEl", "components", "ns", "component", "__toESM", "__require", "script", "sheet", "msg", "all", "compToRemove", "els", "compToReplace", "elToReplace", "compToUpd", "elToUpd", "cssSelector", "classNames", "mdText", "opts", "str", "lang", "md", "url", "uiOptions", "response", "error", "contentType", "slot", "txtReturn", "data", "newScript", "textFn", "newStyle", "node", "thisOut", "listEntries", "bodyEntries", "headEntries", "cols", "v", "permit", "html", "content", "toaster", "toast", "json", "propName", "selection", "out", "p", "cType", "key", "import_ui", "_UibVar", "__publicField", "attrib", "oldVal", "newVal", "val", "t", "UibVar", "PACKET_TYPES", "PACKET_TYPES_REVERSE", "key", "ERROR_PACKET", 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"__privateAdd", "cb", "c", "splitC", "event", "__privateGet", "fullPath", "autoloadVars", "id", "prop", "val", "store", "autoload", "value", "autoVars", "title", "details", "callback", "nextCbRef", "propChangeCallback", "cbRef", "topic", "msgRecvdEvtCallback", "msg", "receivedMsg", "serverTimestamp", "offset", "originator", "ms", "oReq", "headers", "elapsedTime", "__privateSet", "varToCopy", "data", "cssSelector", "el", "exists", "url", "deflt", "ret", "toggle", "mdText", "uiOptions", "textFn", "component", "html", "type", "ui", "propName", "showHide", "parent", "slot", "config", "res", "err", "opts", "root", "entry", "startStop", "send", "showLog", "targetNode", "that", "mutationList", "mu", "oMu", "an", "i", "htmlCache", "receivedCtrlMsg", "obj", "r", "msgToSend", "channel", "numMsgs", "cmd", "quiet", "response", "info", "newUrl", "txtToSend", "domevent", "target", "props", "key", "ignoreAttribs", "attribs", "name", "form", "frmVals", "frmEl", "v", "classes", "payload", "nprops", "ioNamespace", "u", "t", "delay", "factor", "depth", "reason", "lookup", "options", "eMsg", "uibuilder", "uibuilder_module_default", "uibuilder", "UibVar"]
 }
diff --git a/front-end/uibuilder.iife.js b/front-end/uibuilder.iife.js
index 8c88522b..4a5da8a7 100644
--- a/front-end/uibuilder.iife.js
+++ b/front-end/uibuilder.iife.js
@@ -5310,7 +5310,6 @@
     copyToClipboard(varToCopy) {
       let data = "";
       try {
-        console.log(this.get(varToCopy), JSON.stringify(this.get(varToCopy)));
         data = JSON.stringify(this.get(varToCopy));
       } catch (e) {
         log("error", "copyToClipboard", `Could not copy "${varToCopy}" to clipboard.`, e.message)();
@@ -5323,7 +5322,7 @@
      * Requires IntersectionObserver (available to all mainstream browsers from early 2019)
      * Automatically sends a msg back to Node-RED.
      * Requires the element to already exist.
-     * @returns {false}
+     * @returns {false} False if not visible
      */
     elementIsVisible() {
       const info = "elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex";
@@ -6481,10 +6480,12 @@ Client ID: ${this.clientId}`)();
       log("trace", "Uib:start", "ioNamespace: ", this.ioNamespace, `
 ioPath: ${this.ioPath}`)();
       if (options) {
-        if (options.ioNamespace !== void 0 && options.ioNamespace !== null && options.ioNamespace !== "")
+        if (options.ioNamespace)
           this.set("ioNamespace", options.ioNamespace);
-        if (options.ioPath !== void 0 && options.ioPath !== null && options.ioPath !== "")
+        if (options.ioPath)
           this.set("ioPath", options.ioPath);
+        if (options.nopolling && this.socketOptions.transports[0] === "polling")
+          this.socketOptions.transports.shift();
       }
       if (document.styleSheets.length >= 1 || document.styleSheets.length === 1 && document.styleSheets[0].cssRules.length === 0) {
         log("info", "Uib:start", "Styles already loaded so not loading uibuilder default styles.")();
diff --git a/front-end/uibuilder.iife.min.js b/front-end/uibuilder.iife.min.js
index 3fe5ef4a..ed556710 100644
--- a/front-end/uibuilder.iife.min.js
+++ b/front-end/uibuilder.iife.min.js
@@ -1,2 +1,2 @@
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e=this.transports[0];this.readyState="opening";try{e=this.createTransport(e)}catch{this.transports.shift(),this.open();return}e.open(),this.setTransport(e)}setTransport(e){this.transport&&this.transport.removeAllListeners(),this.transport=e,e.on("drain",this.onDrain.bind(this)).on("packet",this.onPacket.bind(this)).on("error",this.onError.bind(this)).on("close",t=>this.onClose("transport close",t))}probe(e){let t=this.createTransport(e),i=!1;s.priorWebsocketSuccess=!1;let r=()=>{i||(t.send([{type:"ping",data:"probe"}]),t.once("packet",x=>{if(!i)if(x.type==="pong"&&x.data==="probe"){if(this.upgrading=!0,this.emitReserved("upgrading",t),!t)return;s.priorWebsocketSuccess=t.name==="websocket",this.transport.pause(()=>{i||this.readyState!=="closed"&&(y(),this.setTransport(t),t.send([{type:"upgrade"}]),this.emitReserved("upgrade",t),t=null,this.upgrading=!1,this.flush())})}else{let k=new Error("probe error");k.transport=t.name,this.emitReserved("upgradeError",k)}}))};function n(){i||(i=!0,y(),t.close(),t=null)}let o=x=>{let k=new Error("probe error: "+x);k.transport=t.name,n(),this.emitReserved("upgradeError",k)};function c(){o("transport closed")}function h(){o("socket closed")}function u(x){t&&x.name!==t.name&&n()}let y=()=>{t.removeListener("open",r),t.removeListener("error",o),t.removeListener("close",c),this.off("close",h),this.off("upgrading",u)};t.once("open",r),t.once("error",o),t.once("close",c),this.once("close",h),this.once("upgrading",u),this.upgrades.indexOf("webtransport")!==-1&&e!=="webtransport"?this.setTimeoutFn(()=>{i||t.open()},200):t.open()}onOpen(){if(this.readyState="open",s.priorWebsocketSuccess=this.transport.name==="websocket",this.emitReserved("open"),this.flush(),this.readyState==="open"&&this.opts.upgrade){let e=0,t=this.upgrades.length;for(;e<t;e++)this.probe(this.upgrades[e])}}onPacket(e){if(this.readyState==="opening"||this.readyState==="open"||this.readyState==="closing")switch(this.emitReserved("packet",e),this.emitReserved("heartbeat"),this.resetPingTimeout(),e.type){case"open":this.onHandshake(JSON.parse(e.data));break;case"ping":this.sendPacket("pong"),this.emitReserved("ping"),this.emitReserved("pong");break;case"error":let t=new Error("server error");t.code=e.data,this.onError(t);break;case"message":this.emitReserved("data",e.data),this.emitReserved("message",e.data);break}}onHandshake(e){this.emitReserved("handshake",e),this.id=e.sid,this.transport.query.sid=e.sid,this.upgrades=this.filterUpgrades(e.upgrades),this.pingInterval=e.pingInterval,this.pingTimeout=e.pingTimeout,this.maxPayload=e.maxPayload,this.onOpen(),this.readyState!=="closed"&&this.resetPingTimeout()}resetPingTimeout(){this.clearTimeoutFn(this.pingTimeoutTimer),this.pingTimeoutTimer=this.setTimeoutFn(()=>{this.onClose("ping timeout")},this.pingInterval+this.pingTimeout),this.opts.autoUnref&&this.pingTimeoutTimer.unref()}onDrain(){this.writeBuffer.splice(0,this.prevBufferLen),this.prevBufferLen=0,this.writeBuffer.length===0?this.emitReserved("drain"):this.flush()}flush(){if(this.readyState!=="closed"&&this.transport.writable&&!this.upgrading&&this.writeBuffer.length){let e=this.getWritablePackets();this.transport.send(e),this.prevBufferLen=e.length,this.emitReserved("flush")}}getWritablePackets(){if(!(this.maxPayload&&this.transport.name==="polling"&&this.writeBuffer.length>1))return this.writeBuffer;let t=1;for(let i=0;i<this.writeBuffer.length;i++){let r=this.writeBuffer[i].data;if(r&&(t+=tt(r)),i>0&&t>this.maxPayload)return this.writeBuffer.slice(0,i);t+=2}return this.writeBuffer}write(e,t,i){return this.sendPacket("message",e,t,i),this}send(e,t,i){return this.sendPacket("message",e,t,i),this}sendPacket(e,t,i,r){if(typeof t=="function"&&(r=t,t=void 0),typeof i=="function"&&(r=i,i=null),this.readyState==="closing"||this.readyState==="closed")return;i=i||{},i.compress=i.compress!==!1;let n={type:e,data:t,options:i};this.emitReserved("packetCreate",n),this.writeBuffer.push(n),r&&this.once("flush",r),this.flush()}close(){let e=()=>{this.onClose("forced close"),this.transport.close()},t=()=>{this.off("upgrade",t),this.off("upgradeError",t),e()},i=()=>{this.once("upgrade",t),this.once("upgradeError",t)};return(this.readyState==="opening"||this.readyState==="open")&&(this.readyState="closing",this.writeBuffer.length?this.once("drain",()=>{this.upgrading?i():e()}):this.upgrading?i():e()),this}onError(e){s.priorWebsocketSuccess=!1,this.emitReserved("error",e),this.onClose("transport error",e)}onClose(e,t){(this.readyState==="opening"||this.readyState==="open"||this.readyState==="closing")&&(this.clearTimeoutFn(this.pingTimeoutTimer),this.transport.removeAllListeners("close"),this.transport.close(),this.transport.removeAllListeners(),typeof removeEventListener=="function"&&(removeEventListener("beforeunload",this.beforeunloadEventListener,!1),removeEventListener("offline",this.offlineEventListener,!1)),this.readyState="closed",this.id=null,this.emitReserved("close",e,t),this.writeBuffer=[],this.prevBufferLen=0)}filterUpgrades(e){let t=[],i=0,r=e.length;for(;i<r;i++)~this.transports.indexOf(e[i])&&t.push(e[i]);return t}};B.protocol=xe;var fs=B.protocol;function ft(s,e="",t){let i=s;t=t||typeof location<"u"&&location,s==null&&(s=t.protocol+"//"+t.host),typeof s=="string"&&(s.charAt(0)==="/"&&(s.charAt(1)==="/"?s=t.protocol+s:s=t.host+s),/^(https?|wss?):\/\//.test(s)||(typeof t<"u"?s=t.protocol+"//"+s:s="https://"+s),i=j(s)),i.port||(/^(http|ws)$/.test(i.protocol)?i.port="80":/^(http|ws)s$/.test(i.protocol)&&(i.port="443")),i.path=i.path||"/";let n=i.host.indexOf(":")!==-1?"["+i.host+"]":i.host;return i.id=i.protocol+"://"+n+":"+i.port+e,i.href=i.protocol+"://"+n+(t&&t.port===i.port?"":":"+i.port),i}var Ie={};Rt(Ie,{Decoder:()=>Le,Encoder:()=>Te,PacketType:()=>p,protocol:()=>bt});var Kt=typeof ArrayBuffer=="function",Jt=s=>typeof ArrayBuffer.isView=="function"?ArrayBuffer.isView(s):s.buffer instanceof ArrayBuffer,pt=Object.prototype.toString,zt=typeof Blob=="function"||typeof Blob<"u"&&pt.call(Blob)==="[object BlobConstructor]",Yt=typeof File=="function"||typeof File<"u"&&pt.call(File)==="[object FileConstructor]";function re(s){return Kt&&(s instanceof ArrayBuffer||Jt(s))||zt&&s instanceof Blob||Yt&&s instanceof File}function se(s,e){if(!s||typeof s!="object")return!1;if(Array.isArray(s)){for(let t=0,i=s.length;t<i;t++)if(se(s[t]))return!0;return!1}if(re(s))return!0;if(s.toJSON&&typeof s.toJSON=="function"&&arguments.length===1)return se(s.toJSON(),!0);for(let t in s)if(Object.prototype.hasOwnProperty.call(s,t)&&se(s[t]))return!0;return!1}function mt(s){let e=[],t=s.data,i=s;return i.data=Ae(t,e),i.attachments=e.length,{packet:i,buffers:e}}function Ae(s,e){if(!s)return s;if(re(s)){let t={_placeholder:!0,num:e.length};return e.push(s),t}else if(Array.isArray(s)){let t=new Array(s.length);for(let i=0;i<s.length;i++)t[i]=Ae(s[i],e);return t}else if(typeof s=="object"&&!(s instanceof Date)){let t={};for(let i in s)Object.prototype.hasOwnProperty.call(s,i)&&(t[i]=Ae(s[i],e));return t}return s}function gt(s,e){return s.data=$e(s.data,e),delete s.attachments,s}function $e(s,e){if(!s)return s;if(s&&s._placeholder===!0){if(typeof s.num=="number"&&s.num>=0&&s.num<e.length)return e[s.num];throw new Error("illegal attachments")}else if(Array.isArray(s))for(let t=0;t<s.length;t++)s[t]=$e(s[t],e);else if(typeof s=="object")for(let t in s)Object.prototype.hasOwnProperty.call(s,t)&&(s[t]=$e(s[t],e));return s}var Gt=["connect","connect_error","disconnect","disconnecting","newListener","removeListener"],bt=5,p;(function(s){s[s.CONNECT=0]="CONNECT",s[s.DISCONNECT=1]="DISCONNECT",s[s.EVENT=2]="EVENT",s[s.ACK=3]="ACK",s[s.CONNECT_ERROR=4]="CONNECT_ERROR",s[s.BINARY_EVENT=5]="BINARY_EVENT",s[s.BINARY_ACK=6]="BINARY_ACK"})(p||(p={}));var Te=class{constructor(e){this.replacer=e}encode(e){return(e.type===p.EVENT||e.type===p.ACK)&&se(e)?this.encodeAsBinary({type:e.type===p.EVENT?p.BINARY_EVENT:p.BINARY_ACK,nsp:e.nsp,data:e.data,id:e.id}):[this.encodeAsString(e)]}encodeAsString(e){let t=""+e.type;return(e.type===p.BINARY_EVENT||e.type===p.BINARY_ACK)&&(t+=e.attachments+"-"),e.nsp&&e.nsp!=="/"&&(t+=e.nsp+","),e.id!=null&&(t+=e.id),e.data!=null&&(t+=JSON.stringify(e.data,this.replacer)),t}encodeAsBinary(e){let t=mt(e),i=this.encodeAsString(t.packet),r=t.buffers;return r.unshift(i),r}};function yt(s){return Object.prototype.toString.call(s)==="[object Object]"}var Le=class s extends b{constructor(e){super(),this.reviver=e}add(e){let t;if(typeof e=="string"){if(this.reconstructor)throw new Error("got plaintext data when reconstructing a packet");t=this.decodeString(e);let i=t.type===p.BINARY_EVENT;i||t.type===p.BINARY_ACK?(t.type=i?p.EVENT:p.ACK,this.reconstructor=new Ue(t),t.attachments===0&&super.emitReserved("decoded",t)):super.emitReserved("decoded",t)}else if(re(e)||e.base64)if(this.reconstructor)t=this.reconstructor.takeBinaryData(e),t&&(this.reconstructor=null,super.emitReserved("decoded",t));else throw new Error("got binary data when not reconstructing a packet");else throw new Error("Unknown type: "+e)}decodeString(e){let t=0,i={type:Number(e.charAt(0))};if(p[i.type]===void 0)throw new Error("unknown packet type "+i.type);if(i.type===p.BINARY_EVENT||i.type===p.BINARY_ACK){let n=t+1;for(;e.charAt(++t)!=="-"&&t!=e.length;);let o=e.substring(n,t);if(o!=Number(o)||e.charAt(t)!=="-")throw new Error("Illegal attachments");i.attachments=Number(o)}if(e.charAt(t+1)==="/"){let n=t+1;for(;++t&&!(e.charAt(t)===","||t===e.length););i.nsp=e.substring(n,t)}else i.nsp="/";let r=e.charAt(t+1);if(r!==""&&Number(r)==r){let n=t+1;for(;++t;){let o=e.charAt(t);if(o==null||Number(o)!=o){--t;break}if(t===e.length)break}i.id=Number(e.substring(n,t+1))}if(e.charAt(++t)){let n=this.tryParse(e.substr(t));if(s.isPayloadValid(i.type,n))i.data=n;else throw new Error("invalid payload")}return i}tryParse(e){try{return JSON.parse(e,this.reviver)}catch{return!1}}static isPayloadValid(e,t){switch(e){case p.CONNECT:return yt(t);case p.DISCONNECT:return t===void 0;case p.CONNECT_ERROR:return typeof t=="string"||yt(t);case p.EVENT:case p.BINARY_EVENT:return Array.isArray(t)&&(typeof t[0]=="number"||typeof t[0]=="string"&&Gt.indexOf(t[0])===-1);case p.ACK:case p.BINARY_ACK:return Array.isArray(t)}}destroy(){this.reconstructor&&(this.reconstructor.finishedReconstruction(),this.reconstructor=null)}},Ue=class{constructor(e){this.packet=e,this.buffers=[],this.reconPack=e}takeBinaryData(e){if(this.buffers.push(e),this.buffers.length===this.reconPack.attachments){let t=gt(this.reconPack,this.buffers);return this.finishedReconstruction(),t}return null}finishedReconstruction(){this.reconPack=null,this.buffers=[]}};function S(s,e,t){return s.on(e,t),function(){s.off(e,t)}}var Xt=Object.freeze({connect:1,connect_error:1,disconnect:1,disconnecting:1,newListener:1,removeListener:1}),W=class extends b{constructor(e,t,i){super(),this.connected=!1,this.recovered=!1,this.receiveBuffer=[],this.sendBuffer=[],this._queue=[],this._queueSeq=0,this.ids=0,this.acks={},this.flags={},this.io=e,this.nsp=t,i&&i.auth&&(this.auth=i.auth),this._opts=Object.assign({},i),this.io._autoConnect&&this.open()}get disconnected(){return!this.connected}subEvents(){if(this.subs)return;let e=this.io;this.subs=[S(e,"open",this.onopen.bind(this)),S(e,"packet",this.onpacket.bind(this)),S(e,"error",this.onerror.bind(this)),S(e,"close",this.onclose.bind(this))]}get active(){return!!this.subs}connect(){return this.connected?this:(this.subEvents(),this.io._reconnecting||this.io.open(),this.io._readyState==="open"&&this.onopen(),this)}open(){return this.connect()}send(...e){return e.unshift("message"),this.emit.apply(this,e),this}emit(e,...t){if(Xt.hasOwnProperty(e))throw new Error('"'+e.toString()+'" is a reserved event name');if(t.unshift(e),this._opts.retries&&!this.flags.fromQueue&&!this.flags.volatile)return this._addToQueue(t),this;let i={type:p.EVENT,data:t};if(i.options={},i.options.compress=this.flags.compress!==!1,typeof t[t.length-1]=="function"){let o=this.ids++,c=t.pop();this._registerAckCallback(o,c),i.id=o}let r=this.io.engine&&this.io.engine.transport&&this.io.engine.transport.writable;return this.flags.volatile&&(!r||!this.connected)||(this.connected?(this.notifyOutgoingListeners(i),this.packet(i)):this.sendBuffer.push(i)),this.flags={},this}_registerAckCallback(e,t){var i;let r=(i=this.flags.timeout)!==null&&i!==void 0?i:this._opts.ackTimeout;if(r===void 0){this.acks[e]=t;return}let n=this.io.setTimeoutFn(()=>{delete this.acks[e];for(let o=0;o<this.sendBuffer.length;o++)this.sendBuffer[o].id===e&&this.sendBuffer.splice(o,1);t.call(this,new Error("operation has timed out"))},r);this.acks[e]=(...o)=>{this.io.clearTimeoutFn(n),t.apply(this,[null,...o])}}emitWithAck(e,...t){let i=this.flags.timeout!==void 0||this._opts.ackTimeout!==void 0;return new Promise((r,n)=>{t.push((o,c)=>i?o?n(o):r(c):r(o)),this.emit(e,...t)})}_addToQueue(e){let t;typeof e[e.length-1]=="function"&&(t=e.pop());let i={id:this._queueSeq++,tryCount:0,pending:!1,args:e,flags:Object.assign({fromQueue:!0},this.flags)};e.push((r,...n)=>i!==this._queue[0]?void 0:(r!==null?i.tryCount>this._opts.retries&&(this._queue.shift(),t&&t(r)):(this._queue.shift(),t&&t(null,...n)),i.pending=!1,this._drainQueue())),this._queue.push(i),this._drainQueue()}_drainQueue(e=!1){if(!this.connected||this._queue.length===0)return;let t=this._queue[0];t.pending&&!e||(t.pending=!0,t.tryCount++,this.flags=t.flags,this.emit.apply(this,t.args))}packet(e){e.nsp=this.nsp,this.io._packet(e)}onopen(){typeof this.auth=="function"?this.auth(e=>{this._sendConnectPacket(e)}):this._sendConnectPacket(this.auth)}_sendConnectPacket(e){this.packet({type:p.CONNECT,data:this._pid?Object.assign({pid:this._pid,offset:this._lastOffset},e):e})}onerror(e){this.connected||this.emitReserved("connect_error",e)}onclose(e,t){this.connected=!1,delete this.id,this.emitReserved("disconnect",e,t)}onpacket(e){if(e.nsp===this.nsp)switch(e.type){case p.CONNECT:e.data&&e.data.sid?this.onconnect(e.data.sid,e.data.pid):this.emitReserved("connect_error",new Error("It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)"));break;case p.EVENT:case p.BINARY_EVENT:this.onevent(e);break;case p.ACK:case p.BINARY_ACK:this.onack(e);break;case p.DISCONNECT:this.ondisconnect();break;case p.CONNECT_ERROR:this.destroy();let i=new Error(e.data.message);i.data=e.data.data,this.emitReserved("connect_error",i);break}}onevent(e){let t=e.data||[];e.id!=null&&t.push(this.ack(e.id)),this.connected?this.emitEvent(t):this.receiveBuffer.push(Object.freeze(t))}emitEvent(e){if(this._anyListeners&&this._anyListeners.length){let t=this._anyListeners.slice();for(let i of t)i.apply(this,e)}super.emit.apply(this,e),this._pid&&e.length&&typeof e[e.length-1]=="string"&&(this._lastOffset=e[e.length-1])}ack(e){let t=this,i=!1;return function(...r){i||(i=!0,t.packet({type:p.ACK,id:e,data:r}))}}onack(e){let t=this.acks[e.id];typeof t=="function"&&(t.apply(this,e.data),delete this.acks[e.id])}onconnect(e,t){this.id=e,this.recovered=t&&this._pid===t,this._pid=t,this.connected=!0,this.emitBuffered(),this.emitReserved("connect"),this._drainQueue(!0)}emitBuffered(){this.receiveBuffer.forEach(e=>this.emitEvent(e)),this.receiveBuffer=[],this.sendBuffer.forEach(e=>{this.notifyOutgoingListeners(e),this.packet(e)}),this.sendBuffer=[]}ondisconnect(){this.destroy(),this.onclose("io server disconnect")}destroy(){this.subs&&(this.subs.forEach(e=>e()),this.subs=void 0),this.io._destroy(this)}disconnect(){return this.connected&&this.packet({type:p.DISCONNECT}),this.destroy(),this.connected&&this.onclose("io client disconnect"),this}close(){return this.disconnect()}compress(e){return this.flags.compress=e,this}get volatile(){return this.flags.volatile=!0,this}timeout(e){return this.flags.timeout=e,this}onAny(e){return this._anyListeners=this._anyListeners||[],this._anyListeners.push(e),this}prependAny(e){return this._anyListeners=this._anyListeners||[],this._anyListeners.unshift(e),this}offAny(e){if(!this._anyListeners)return this;if(e){let t=this._anyListeners;for(let i=0;i<t.length;i++)if(e===t[i])return t.splice(i,1),this}else this._anyListeners=[];return this}listenersAny(){return this._anyListeners||[]}onAnyOutgoing(e){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.push(e),this}prependAnyOutgoing(e){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.unshift(e),this}offAnyOutgoing(e){if(!this._anyOutgoingListeners)return this;if(e){let t=this._anyOutgoingListeners;for(let i=0;i<t.length;i++)if(e===t[i])return t.splice(i,1),this}else this._anyOutgoingListeners=[];return this}listenersAnyOutgoing(){return this._anyOutgoingListeners||[]}notifyOutgoingListeners(e){if(this._anyOutgoingListeners&&this._anyOutgoingListeners.length){let t=this._anyOutgoingListeners.slice();for(let i of t)i.apply(this,e.data)}}};function P(s){s=s||{},this.ms=s.min||100,this.max=s.max||1e4,this.factor=s.factor||2,this.jitter=s.jitter>0&&s.jitter<=1?s.jitter:0,this.attempts=0}P.prototype.duration=function(){var s=this.ms*Math.pow(this.factor,this.attempts++);if(this.jitter){var e=Math.random(),t=Math.floor(e*this.jitter*s);s=Math.floor(e*10)&1?s+t:s-t}return Math.min(s,this.max)|0};P.prototype.reset=function(){this.attempts=0};P.prototype.setMin=function(s){this.ms=s};P.prototype.setMax=function(s){this.max=s};P.prototype.setJitter=function(s){this.jitter=s};var K=class extends b{constructor(e,t){var i;super(),this.nsps={},this.subs=[],e&&typeof e=="object"&&(t=e,e=void 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e=this.transports[0];this.readyState="opening";try{e=this.createTransport(e)}catch{this.transports.shift(),this.open();return}e.open(),this.setTransport(e)}setTransport(e){this.transport&&this.transport.removeAllListeners(),this.transport=e,e.on("drain",this.onDrain.bind(this)).on("packet",this.onPacket.bind(this)).on("error",this.onError.bind(this)).on("close",t=>this.onClose("transport close",t))}probe(e){let t=this.createTransport(e),i=!1;s.priorWebsocketSuccess=!1;let r=()=>{i||(t.send([{type:"ping",data:"probe"}]),t.once("packet",x=>{if(!i)if(x.type==="pong"&&x.data==="probe"){if(this.upgrading=!0,this.emitReserved("upgrading",t),!t)return;s.priorWebsocketSuccess=t.name==="websocket",this.transport.pause(()=>{i||this.readyState!=="closed"&&(y(),this.setTransport(t),t.send([{type:"upgrade"}]),this.emitReserved("upgrade",t),t=null,this.upgrading=!1,this.flush())})}else{let k=new Error("probe error");k.transport=t.name,this.emitReserved("upgradeError",k)}}))};function n(){i||(i=!0,y(),t.close(),t=null)}let o=x=>{let k=new Error("probe error: "+x);k.transport=t.name,n(),this.emitReserved("upgradeError",k)};function c(){o("transport closed")}function h(){o("socket closed")}function u(x){t&&x.name!==t.name&&n()}let y=()=>{t.removeListener("open",r),t.removeListener("error",o),t.removeListener("close",c),this.off("close",h),this.off("upgrading",u)};t.once("open",r),t.once("error",o),t.once("close",c),this.once("close",h),this.once("upgrading",u),this.upgrades.indexOf("webtransport")!==-1&&e!=="webtransport"?this.setTimeoutFn(()=>{i||t.open()},200):t.open()}onOpen(){if(this.readyState="open",s.priorWebsocketSuccess=this.transport.name==="websocket",this.emitReserved("open"),this.flush(),this.readyState==="open"&&this.opts.upgrade){let e=0,t=this.upgrades.length;for(;e<t;e++)this.probe(this.upgrades[e])}}onPacket(e){if(this.readyState==="opening"||this.readyState==="open"||this.readyState==="closing")switch(this.emitReserved("packet",e),this.emitReserved("heartbeat"),this.resetPingTimeout(),e.type){case"open":this.onHandshake(JSON.parse(e.data));break;case"ping":this.sendPacket("pong"),this.emitReserved("ping"),this.emitReserved("pong");break;case"error":let t=new Error("server error");t.code=e.data,this.onError(t);break;case"message":this.emitReserved("data",e.data),this.emitReserved("message",e.data);break}}onHandshake(e){this.emitReserved("handshake",e),this.id=e.sid,this.transport.query.sid=e.sid,this.upgrades=this.filterUpgrades(e.upgrades),this.pingInterval=e.pingInterval,this.pingTimeout=e.pingTimeout,this.maxPayload=e.maxPayload,this.onOpen(),this.readyState!=="closed"&&this.resetPingTimeout()}resetPingTimeout(){this.clearTimeoutFn(this.pingTimeoutTimer),this.pingTimeoutTimer=this.setTimeoutFn(()=>{this.onClose("ping timeout")},this.pingInterval+this.pingTimeout),this.opts.autoUnref&&this.pingTimeoutTimer.unref()}onDrain(){this.writeBuffer.splice(0,this.prevBufferLen),this.prevBufferLen=0,this.writeBuffer.length===0?this.emitReserved("drain"):this.flush()}flush(){if(this.readyState!=="closed"&&this.transport.writable&&!this.upgrading&&this.writeBuffer.length){let e=this.getWritablePackets();this.transport.send(e),this.prevBufferLen=e.length,this.emitReserved("flush")}}getWritablePackets(){if(!(this.maxPayload&&this.transport.name==="polling"&&this.writeBuffer.length>1))return this.writeBuffer;let t=1;for(let i=0;i<this.writeBuffer.length;i++){let r=this.writeBuffer[i].data;if(r&&(t+=tt(r)),i>0&&t>this.maxPayload)return this.writeBuffer.slice(0,i);t+=2}return this.writeBuffer}write(e,t,i){return this.sendPacket("message",e,t,i),this}send(e,t,i){return this.sendPacket("message",e,t,i),this}sendPacket(e,t,i,r){if(typeof t=="function"&&(r=t,t=void 0),typeof i=="function"&&(r=i,i=null),this.readyState==="closing"||this.readyState==="closed")return;i=i||{},i.compress=i.compress!==!1;let n={type:e,data:t,options:i};this.emitReserved("packetCreate",n),this.writeBuffer.push(n),r&&this.once("flush",r),this.flush()}close(){let e=()=>{this.onClose("forced close"),this.transport.close()},t=()=>{this.off("upgrade",t),this.off("upgradeError",t),e()},i=()=>{this.once("upgrade",t),this.once("upgradeError",t)};return(this.readyState==="opening"||this.readyState==="open")&&(this.readyState="closing",this.writeBuffer.length?this.once("drain",()=>{this.upgrading?i():e()}):this.upgrading?i():e()),this}onError(e){s.priorWebsocketSuccess=!1,this.emitReserved("error",e),this.onClose("transport error",e)}onClose(e,t){(this.readyState==="opening"||this.readyState==="open"||this.readyState==="closing")&&(this.clearTimeoutFn(this.pingTimeoutTimer),this.transport.removeAllListeners("close"),this.transport.close(),this.transport.removeAllListeners(),typeof removeEventListener=="function"&&(removeEventListener("beforeunload",this.beforeunloadEventListener,!1),removeEventListener("offline",this.offlineEventListener,!1)),this.readyState="closed",this.id=null,this.emitReserved("close",e,t),this.writeBuffer=[],this.prevBufferLen=0)}filterUpgrades(e){let t=[],i=0,r=e.length;for(;i<r;i++)~this.transports.indexOf(e[i])&&t.push(e[i]);return t}};B.protocol=xe;var fs=B.protocol;function ft(s,e="",t){let i=s;t=t||typeof location<"u"&&location,s==null&&(s=t.protocol+"//"+t.host),typeof s=="string"&&(s.charAt(0)==="/"&&(s.charAt(1)==="/"?s=t.protocol+s:s=t.host+s),/^(https?|wss?):\/\//.test(s)||(typeof t<"u"?s=t.protocol+"//"+s:s="https://"+s),i=j(s)),i.port||(/^(http|ws)$/.test(i.protocol)?i.port="80":/^(http|ws)s$/.test(i.protocol)&&(i.port="443")),i.path=i.path||"/";let n=i.host.indexOf(":")!==-1?"["+i.host+"]":i.host;return i.id=i.protocol+"://"+n+":"+i.port+e,i.href=i.protocol+"://"+n+(t&&t.port===i.port?"":":"+i.port),i}var Ie={};Rt(Ie,{Decoder:()=>Le,Encoder:()=>Te,PacketType:()=>p,protocol:()=>bt});var Kt=typeof ArrayBuffer=="function",Jt=s=>typeof ArrayBuffer.isView=="function"?ArrayBuffer.isView(s):s.buffer instanceof ArrayBuffer,pt=Object.prototype.toString,zt=typeof Blob=="function"||typeof Blob<"u"&&pt.call(Blob)==="[object BlobConstructor]",Yt=typeof File=="function"||typeof File<"u"&&pt.call(File)==="[object FileConstructor]";function re(s){return Kt&&(s instanceof ArrayBuffer||Jt(s))||zt&&s instanceof Blob||Yt&&s instanceof File}function se(s,e){if(!s||typeof s!="object")return!1;if(Array.isArray(s)){for(let t=0,i=s.length;t<i;t++)if(se(s[t]))return!0;return!1}if(re(s))return!0;if(s.toJSON&&typeof s.toJSON=="function"&&arguments.length===1)return se(s.toJSON(),!0);for(let t in s)if(Object.prototype.hasOwnProperty.call(s,t)&&se(s[t]))return!0;return!1}function mt(s){let e=[],t=s.data,i=s;return i.data=Ae(t,e),i.attachments=e.length,{packet:i,buffers:e}}function Ae(s,e){if(!s)return s;if(re(s)){let t={_placeholder:!0,num:e.length};return e.push(s),t}else if(Array.isArray(s)){let t=new Array(s.length);for(let i=0;i<s.length;i++)t[i]=Ae(s[i],e);return t}else if(typeof s=="object"&&!(s instanceof Date)){let t={};for(let i in s)Object.prototype.hasOwnProperty.call(s,i)&&(t[i]=Ae(s[i],e));return t}return s}function gt(s,e){return s.data=$e(s.data,e),delete s.attachments,s}function $e(s,e){if(!s)return s;if(s&&s._placeholder===!0){if(typeof s.num=="number"&&s.num>=0&&s.num<e.length)return e[s.num];throw new Error("illegal attachments")}else if(Array.isArray(s))for(let t=0;t<s.length;t++)s[t]=$e(s[t],e);else if(typeof s=="object")for(let t in s)Object.prototype.hasOwnProperty.call(s,t)&&(s[t]=$e(s[t],e));return s}var Gt=["connect","connect_error","disconnect","disconnecting","newListener","removeListener"],bt=5,p;(function(s){s[s.CONNECT=0]="CONNECT",s[s.DISCONNECT=1]="DISCONNECT",s[s.EVENT=2]="EVENT",s[s.ACK=3]="ACK",s[s.CONNECT_ERROR=4]="CONNECT_ERROR",s[s.BINARY_EVENT=5]="BINARY_EVENT",s[s.BINARY_ACK=6]="BINARY_ACK"})(p||(p={}));var Te=class{constructor(e){this.replacer=e}encode(e){return(e.type===p.EVENT||e.type===p.ACK)&&se(e)?this.encodeAsBinary({type:e.type===p.EVENT?p.BINARY_EVENT:p.BINARY_ACK,nsp:e.nsp,data:e.data,id:e.id}):[this.encodeAsString(e)]}encodeAsString(e){let t=""+e.type;return(e.type===p.BINARY_EVENT||e.type===p.BINARY_ACK)&&(t+=e.attachments+"-"),e.nsp&&e.nsp!=="/"&&(t+=e.nsp+","),e.id!=null&&(t+=e.id),e.data!=null&&(t+=JSON.stringify(e.data,this.replacer)),t}encodeAsBinary(e){let t=mt(e),i=this.encodeAsString(t.packet),r=t.buffers;return r.unshift(i),r}};function yt(s){return Object.prototype.toString.call(s)==="[object Object]"}var Le=class s extends b{constructor(e){super(),this.reviver=e}add(e){let t;if(typeof e=="string"){if(this.reconstructor)throw new Error("got plaintext data when reconstructing a packet");t=this.decodeString(e);let i=t.type===p.BINARY_EVENT;i||t.type===p.BINARY_ACK?(t.type=i?p.EVENT:p.ACK,this.reconstructor=new Ue(t),t.attachments===0&&super.emitReserved("decoded",t)):super.emitReserved("decoded",t)}else if(re(e)||e.base64)if(this.reconstructor)t=this.reconstructor.takeBinaryData(e),t&&(this.reconstructor=null,super.emitReserved("decoded",t));else throw new Error("got binary data when not reconstructing a packet");else throw new Error("Unknown type: "+e)}decodeString(e){let t=0,i={type:Number(e.charAt(0))};if(p[i.type]===void 0)throw new Error("unknown packet type "+i.type);if(i.type===p.BINARY_EVENT||i.type===p.BINARY_ACK){let n=t+1;for(;e.charAt(++t)!=="-"&&t!=e.length;);let o=e.substring(n,t);if(o!=Number(o)||e.charAt(t)!=="-")throw new Error("Illegal attachments");i.attachments=Number(o)}if(e.charAt(t+1)==="/"){let n=t+1;for(;++t&&!(e.charAt(t)===","||t===e.length););i.nsp=e.substring(n,t)}else i.nsp="/";let r=e.charAt(t+1);if(r!==""&&Number(r)==r){let n=t+1;for(;++t;){let o=e.charAt(t);if(o==null||Number(o)!=o){--t;break}if(t===e.length)break}i.id=Number(e.substring(n,t+1))}if(e.charAt(++t)){let n=this.tryParse(e.substr(t));if(s.isPayloadValid(i.type,n))i.data=n;else throw new Error("invalid payload")}return i}tryParse(e){try{return JSON.parse(e,this.reviver)}catch{return!1}}static isPayloadValid(e,t){switch(e){case p.CONNECT:return yt(t);case p.DISCONNECT:return t===void 0;case p.CONNECT_ERROR:return typeof t=="string"||yt(t);case p.EVENT:case p.BINARY_EVENT:return Array.isArray(t)&&(typeof t[0]=="number"||typeof t[0]=="string"&&Gt.indexOf(t[0])===-1);case p.ACK:case p.BINARY_ACK:return Array.isArray(t)}}destroy(){this.reconstructor&&(this.reconstructor.finishedReconstruction(),this.reconstructor=null)}},Ue=class{constructor(e){this.packet=e,this.buffers=[],this.reconPack=e}takeBinaryData(e){if(this.buffers.push(e),this.buffers.length===this.reconPack.attachments){let t=gt(this.reconPack,this.buffers);return this.finishedReconstruction(),t}return null}finishedReconstruction(){this.reconPack=null,this.buffers=[]}};function S(s,e,t){return s.on(e,t),function(){s.off(e,t)}}var Xt=Object.freeze({connect:1,connect_error:1,disconnect:1,disconnecting:1,newListener:1,removeListener:1}),W=class extends b{constructor(e,t,i){super(),this.connected=!1,this.recovered=!1,this.receiveBuffer=[],this.sendBuffer=[],this._queue=[],this._queueSeq=0,this.ids=0,this.acks={},this.flags={},this.io=e,this.nsp=t,i&&i.auth&&(this.auth=i.auth),this._opts=Object.assign({},i),this.io._autoConnect&&this.open()}get disconnected(){return!this.connected}subEvents(){if(this.subs)return;let e=this.io;this.subs=[S(e,"open",this.onopen.bind(this)),S(e,"packet",this.onpacket.bind(this)),S(e,"error",this.onerror.bind(this)),S(e,"close",this.onclose.bind(this))]}get active(){return!!this.subs}connect(){return this.connected?this:(this.subEvents(),this.io._reconnecting||this.io.open(),this.io._readyState==="open"&&this.onopen(),this)}open(){return this.connect()}send(...e){return e.unshift("message"),this.emit.apply(this,e),this}emit(e,...t){if(Xt.hasOwnProperty(e))throw new Error('"'+e.toString()+'" is a reserved event name');if(t.unshift(e),this._opts.retries&&!this.flags.fromQueue&&!this.flags.volatile)return this._addToQueue(t),this;let i={type:p.EVENT,data:t};if(i.options={},i.options.compress=this.flags.compress!==!1,typeof t[t.length-1]=="function"){let o=this.ids++,c=t.pop();this._registerAckCallback(o,c),i.id=o}let r=this.io.engine&&this.io.engine.transport&&this.io.engine.transport.writable;return this.flags.volatile&&(!r||!this.connected)||(this.connected?(this.notifyOutgoingListeners(i),this.packet(i)):this.sendBuffer.push(i)),this.flags={},this}_registerAckCallback(e,t){var i;let r=(i=this.flags.timeout)!==null&&i!==void 0?i:this._opts.ackTimeout;if(r===void 0){this.acks[e]=t;return}let n=this.io.setTimeoutFn(()=>{delete this.acks[e];for(let o=0;o<this.sendBuffer.length;o++)this.sendBuffer[o].id===e&&this.sendBuffer.splice(o,1);t.call(this,new Error("operation has timed out"))},r);this.acks[e]=(...o)=>{this.io.clearTimeoutFn(n),t.apply(this,[null,...o])}}emitWithAck(e,...t){let i=this.flags.timeout!==void 0||this._opts.ackTimeout!==void 0;return new Promise((r,n)=>{t.push((o,c)=>i?o?n(o):r(c):r(o)),this.emit(e,...t)})}_addToQueue(e){let t;typeof e[e.length-1]=="function"&&(t=e.pop());let i={id:this._queueSeq++,tryCount:0,pending:!1,args:e,flags:Object.assign({fromQueue:!0},this.flags)};e.push((r,...n)=>i!==this._queue[0]?void 0:(r!==null?i.tryCount>this._opts.retries&&(this._queue.shift(),t&&t(r)):(this._queue.shift(),t&&t(null,...n)),i.pending=!1,this._drainQueue())),this._queue.push(i),this._drainQueue()}_drainQueue(e=!1){if(!this.connected||this._queue.length===0)return;let t=this._queue[0];t.pending&&!e||(t.pending=!0,t.tryCount++,this.flags=t.flags,this.emit.apply(this,t.args))}packet(e){e.nsp=this.nsp,this.io._packet(e)}onopen(){typeof this.auth=="function"?this.auth(e=>{this._sendConnectPacket(e)}):this._sendConnectPacket(this.auth)}_sendConnectPacket(e){this.packet({type:p.CONNECT,data:this._pid?Object.assign({pid:this._pid,offset:this._lastOffset},e):e})}onerror(e){this.connected||this.emitReserved("connect_error",e)}onclose(e,t){this.connected=!1,delete this.id,this.emitReserved("disconnect",e,t)}onpacket(e){if(e.nsp===this.nsp)switch(e.type){case p.CONNECT:e.data&&e.data.sid?this.onconnect(e.data.sid,e.data.pid):this.emitReserved("connect_error",new Error("It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)"));break;case p.EVENT:case p.BINARY_EVENT:this.onevent(e);break;case p.ACK:case p.BINARY_ACK:this.onack(e);break;case p.DISCONNECT:this.ondisconnect();break;case p.CONNECT_ERROR:this.destroy();let i=new Error(e.data.message);i.data=e.data.data,this.emitReserved("connect_error",i);break}}onevent(e){let t=e.data||[];e.id!=null&&t.push(this.ack(e.id)),this.connected?this.emitEvent(t):this.receiveBuffer.push(Object.freeze(t))}emitEvent(e){if(this._anyListeners&&this._anyListeners.length){let t=this._anyListeners.slice();for(let i of t)i.apply(this,e)}super.emit.apply(this,e),this._pid&&e.length&&typeof e[e.length-1]=="string"&&(this._lastOffset=e[e.length-1])}ack(e){let t=this,i=!1;return function(...r){i||(i=!0,t.packet({type:p.ACK,id:e,data:r}))}}onack(e){let t=this.acks[e.id];typeof t=="function"&&(t.apply(this,e.data),delete this.acks[e.id])}onconnect(e,t){this.id=e,this.recovered=t&&this._pid===t,this._pid=t,this.connected=!0,this.emitBuffered(),this.emitReserved("connect"),this._drainQueue(!0)}emitBuffered(){this.receiveBuffer.forEach(e=>this.emitEvent(e)),this.receiveBuffer=[],this.sendBuffer.forEach(e=>{this.notifyOutgoingListeners(e),this.packet(e)}),this.sendBuffer=[]}ondisconnect(){this.destroy(),this.onclose("io server disconnect")}destroy(){this.subs&&(this.subs.forEach(e=>e()),this.subs=void 0),this.io._destroy(this)}disconnect(){return this.connected&&this.packet({type:p.DISCONNECT}),this.destroy(),this.connected&&this.onclose("io client disconnect"),this}close(){return this.disconnect()}compress(e){return this.flags.compress=e,this}get volatile(){return this.flags.volatile=!0,this}timeout(e){return this.flags.timeout=e,this}onAny(e){return this._anyListeners=this._anyListeners||[],this._anyListeners.push(e),this}prependAny(e){return this._anyListeners=this._anyListeners||[],this._anyListeners.unshift(e),this}offAny(e){if(!this._anyListeners)return this;if(e){let t=this._anyListeners;for(let i=0;i<t.length;i++)if(e===t[i])return t.splice(i,1),this}else this._anyListeners=[];return this}listenersAny(){return this._anyListeners||[]}onAnyOutgoing(e){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.push(e),this}prependAnyOutgoing(e){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.unshift(e),this}offAnyOutgoing(e){if(!this._anyOutgoingListeners)return this;if(e){let t=this._anyOutgoingListeners;for(let i=0;i<t.length;i++)if(e===t[i])return t.splice(i,1),this}else this._anyOutgoingListeners=[];return this}listenersAnyOutgoing(){return this._anyOutgoingListeners||[]}notifyOutgoingListeners(e){if(this._anyOutgoingListeners&&this._anyOutgoingListeners.length){let t=this._anyOutgoingListeners.slice();for(let i of t)i.apply(this,e.data)}}};function P(s){s=s||{},this.ms=s.min||100,this.max=s.max||1e4,this.factor=s.factor||2,this.jitter=s.jitter>0&&s.jitter<=1?s.jitter:0,this.attempts=0}P.prototype.duration=function(){var s=this.ms*Math.pow(this.factor,this.attempts++);if(this.jitter){var e=Math.random(),t=Math.floor(e*this.jitter*s);s=Math.floor(e*10)&1?s+t:s-t}return Math.min(s,this.max)|0};P.prototype.reset=function(){this.attempts=0};P.prototype.setMin=function(s){this.ms=s};P.prototype.setMax=function(s){this.max=s};P.prototype.setJitter=function(s){this.jitter=s};var K=class extends b{constructor(e,t){var i;super(),this.nsps={},this.subs=[],e&&typeof e=="object"&&(t=e,e=void 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MutationObserver(function(){this.takeRecords(),i.saveHtmlCache()})),e===!0||e===void 0?(this._htmlObserver.observe(t,{attributes:!0,childList:!0,subtree:!0,characterData:!0}),a("trace","uibuilder.module.js:watchDom","Started Watching and saving DOM changes")()):(this._htmlObserver.disconnect(),a("trace","uibuilder.module.js:watchDom","Stopped Watching and saving DOM changes")())}_ctrlMsgFromServer(e){if(e===null)e={};else if(typeof e!="object"){let t={};t["uibuilderCtrl:"+this._ioChannels.control]=e,e=t}switch(this._checkTimestamp(e),this.set("ctrlMsg",e),this.set("msgsCtrlReceived",++this.msgsCtrlReceived),a("trace","Uib:ioSetup:_ctrlMsgFromServer","Channel '".concat(this._ioChannels.control,"'. 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Make sure that you wrap the call in a function: `doEvent: function (event) { uibuilder.eventSend(event) },`")();return}if(!e&&!event){a("warn","Uib:eventSend","Neither the domevent nor the hidden event properties are set. You probably called this function directly rather than applying to an on click event.")();return}if((!e||!e.constructor)&&(e=event),!e.constructor.name.endsWith("Event")||!e.currentTarget){a("warn","Uib:eventSend","ARGUMENT NOT A DOM EVENT - use data attributes not function arguments to pass data. Arg Type: ".concat(e.constructor.name),e)();return}e.preventDefault();let i=e.currentTarget,r={};Object.keys(i).forEach(g=>{g.startsWith("_")||(r[g]=i[g])});let n=["class","id","name"],o;try{o=Object.assign({},...Array.from(i.attributes,({name:g,value:_e})=>{if(!n.includes(g))return{[g]:_e}}))}catch{}let c,h=[];i.form&&(c={},c.valid=i.form.checkValidity(),Object.values(i.form).forEach((g,_e)=>{let V=g.id!==""?g.id:g.name!==""?g.name:"".concat(_e,"-").concat(g.type);if(V!==""&&g.type){if("checked"in g&&g.value==="on"&&(g.value=g.checked.toString()),h.push({key:V,val:g.value}),c[V]={id:g.id,name:g.name,value:g.value,valid:g.checkValidity(),type:g.type},c[V].valid===!1){let w=g.validity;c[V].validity={badInput:w.badInput===!0?w.badInput:void 0,customError:w.customError===!0?w.customError:void 0,patternMismatch:w.patternMismatch===!0?w.patternMismatch:void 0,rangeOverflow:w.rangeOverflow===!0?w.rangeOverflow:void 0,rangeUnderflow:w.rangeUnderflow===!0?w.rangeUnderflow:void 0,stepMismatch:w.stepMismatch===!0?w.stepMismatch:void 0,tooLong:w.tooLong===!0?w.tooLong:void 0,tooShort:w.tooShort===!0?w.tooShort:void 0,typeMismatch:w.typeMismatch===!0?w.typeMismatch:void 0,valueMissing:w.valueMissing===!0?w.valueMissing:void 0}}g.dataset&&(c[V].data=g.dataset)}}));let u;try{u=Array.from(i.classList)}catch{}let y={...i.dataset},x;Object.prototype.toString.call(i)==="[object Notification]"&&(y="notification-".concat(i.userAction),x={actions:i.actions,badge:i.badge,body:i.body,data:i.data,dir:i.dir,icon:i.icon,image:i.image,lang:i.lang,renotify:i.renotify,requireInteraction:i.requireInteraction,silent:i.silent,tag:i.tag,timestamp:i.timestamp,title:i.title,vibrate:i.vibrate});let k={payload:y,_ui:{type:"eventSend",id:i.id!==""?i.id:void 0,name:i.name!==""?i.name:void 0,slotText:i.textContent?i.textContent.substring(0,255):void 0,form:c,props:r,attribs:o,classes:u,notification:x,event:e.type,altKey:e.altKey,ctrlKey:e.ctrlKey,shiftKey:e.shiftKey,metaKey:e.metaKey,pointerType:e.pointerType,nodeName:i.nodeName,clientId:this.clientId,pageName:this.pageName,tabId:this.tabId}};h.length>0&&h.forEach(g=>{k.payload[g.key]=g.val}),e.type==="change"&&(k._ui.newValue=k.payload.value="checked"in i?i.checked:e.target.value),a("trace","Uib:eventSend","Sending msg to Node-RED",k)(),i.dataset&&i.dataset.length===0&&a("warn","Uib:eventSend","No payload in msg. data-* attributes should be used.")(),this._send(k,this._ioChannels.client,t)}send(e,t=""){this._send(e,this._ioChannels.client,t)}sendCtrl(e){this._send(e,this._ioChannels.control)}_getIOnamespace(){let e;if(e=this.cookies["uibuilder-namespace"],e===void 0||e===""){let t=window.location.pathname.split("/").filter(function(i){return i.trim()!==""});t.length>0&&t[t.length-1].endsWith(".html")&&t.pop(),e=t.pop(),a("trace","uibuilder.module.js:getIOnamespace","Socket.IO namespace found via url path: ".concat(e))()}else a("trace","uibuilder.module.js:getIOnamespace","Socket.IO namespace found via cookie: ".concat(e))();return this.url=e,e="/"+e,a("trace","uibuilder.module.js:getIOnamespace","Final Socket.IO namespace: ".concat(e))(),e}_checkConnect(e,t,i=1){if(navigator.onLine!==!1)return e||(e=this.retryMs),t||(t=this.retryFactor),a("trace","Uib:checkConnect","Checking connection. Connected: ".concat(this._socket.connected,". Timer: ").concat(d(this,_),". Depth: ").concat(i,". Delay: ").concat(e,". Factor: ").concat(t),this._socket)(),this._socket.connected===!0?(d(this,_)&&(window.clearTimeout(d(this,_)),A(this,_,null)),this.set("ioConnected",!0),this.set("socketError",null),!0):(this.set("ioConnected",!1),d(this,_)&&window.clearTimeout(d(this,_)),A(this,_,window.setTimeout(()=>{a("warn","Uib:checkConnect:setTimeout","Socket.IO reconnection attempt. Current delay: ".concat(e,". Depth: ").concat(i))(),this._socket.close(),this._socket.connect(),A(this,_,null),this._checkConnect(e*t,t,i++)},e)),!1)}_onConnect(){a("info","Uib:ioSetup","\u2705 SOCKET CONNECTED. Connection count: ".concat(this.connectedNum,", Is a Recovery?: ").concat(this._socket.recovered,". \nNamespace: ").concat(this.ioNamespace))(),this._dispatchCustomEvent("uibuilder:socket:connected",{numConnections:this.connectedNum,isRecovery:this._socket.recovered}),this._checkConnect()}_onDisconnect(e){a("info","Uib:ioSetup:socket-disconnect","\u26D4 Socket Disconnected. Reason: ".concat(e))(),this._dispatchCustomEvent("uibuilder:socket:disconnected",e),this._checkConnect()}_ioSetup(){return J===void 0?(a("error","Uib:ioSetup","Socket.IO client not loaded, Node-RED comms will not work")(),!1):(this._socket&&(a("trace","Uib:ioSetup","Removing listeners in preparation for redoing Socket.IO connections")(),d(this,_)&&(window.clearTimeout(d(this,_)),A(this,_,null)),this._socket.close(),this._socket.offAny(),this._socket=void 0,this.set("ioConnected",!1)),this.socketOptions.path=this.ioPath,a("trace","Uib:ioSetup","About to create IO object. Transports: [".concat(this.socketOptions.transports.join(", "),"]"))(),this._socket=J(this.ioNamespace,this.socketOptions),this._socket.on("connect",this._onConnect.bind(this)),this._socket.on(this._ioChannels.server,this._stdMsgFromServer.bind(this)),this._socket.on(this._ioChannels.control,this._ctrlMsgFromServer.bind(this)),this._socket.on("disconnect",this._onDisconnect.bind(this)),this._socket.on("connect_error",e=>{navigator.onLine!==!1&&(a("error","Uib:ioSetup:connect_error","\u274C Socket.IO Connect Error. Reason: ".concat(e.message),e)(),this.set("ioConnected",!1),this.set("socketError",e),this._dispatchCustomEvent("uibuilder:socket:disconnected",e))}),this._socket.on("error",e=>{a("error","Uib:ioSetup:error","\u274C Socket.IO Error. Reason: ".concat(e.message),e)(),this.set("ioConnected",!1),this.set("socketError",e),this._dispatchCustomEvent("uibuilder:socket:disconnected",e)}),this._checkConnect(),!0)}start(e){a("trace","Uib:start","Starting")(),d(this,oe)&&this.cancelChange("msg",d(this,oe)),this.started===!0&&a("info","Uib:start","Start function already called. Resetting Socket.IO and msg handler.")(),a("log","Uib:start","Cookies: ",this.cookies,"\nClient ID: ".concat(this.clientId))(),a("trace","Uib:start","ioNamespace: ",this.ioNamespace,"\nioPath: ".concat(this.ioPath))(),e&&(e.ioNamespace&&this.set("ioNamespace",e.ioNamespace),e.ioPath&&this.set("ioPath",e.ioPath),e.nopolling&&this.socketOptions.transports[0]==="polling"&&this.socketOptions.transports.shift()),document.styleSheets.length>=1||document.styleSheets.length===1&&document.styleSheets[0].cssRules.length===0?a("info","Uib:start","Styles already loaded so not loading uibuilder default styles.")():e&&e.loadStylesheet===!1?a("info","Uib:start","No styles loaded & options.loadStylesheet === false.")():(a("info","Uib:start","No styles loaded, loading uibuilder default styles.")(),this.loadStyleSrc("".concat(this.httpNodeRoot,"/uibuilder/uib-brand.min.css")));let[t]=performance.getEntriesByType("navigation");if(this.set("lastNavType",t.type),this.set("started",this._ioSetup()),this.started===!0?a("trace","Uib:start","Start completed. Socket.IO client library loaded.")():a("error","Uib:start","Start completed. ERROR: Socket.IO client library NOT LOADED.")(),this._watchHashChanges(),window.Vue){this.set("isVue",!0);try{this.set("vueVersion",window.Vue.version)}catch{}a("trace","Uib:start","VueJS is loaded. Version: ".concat(this.vueVersion))()}else a("trace","Uib:start","VueJS is not loaded.")();window.DOMPurify?(this.set("purify",!0),a("trace","Uib:start","DOMPurify is loaded.")()):a("trace","Uib:start","DOMPurify is not loaded.")(),window.markdownit?(this.set("markdown",!0),a("trace","Uib:start","Markdown-IT is loaded.")()):a("trace","Uib:start","Markdown-IT is not loaded.")(),this.onChange("msg",i=>{if(d(this,z)===!0){let r=document.getElementById("uib_last_msg");r&&(r.innerHTML=this.syntaxHighlight(i))}}),this._dispatchCustomEvent("uibuilder:startComplete")}},q=new WeakMap,N=new WeakMap,$=new WeakMap,_=new WeakMap,oe=new WeakMap,z=new WeakMap,Y=new WeakMap,H=new WeakMap,ve=new WeakMap,ae=new WeakMap,ce=new WeakMap,M=new WeakMap,l(E,"_meta",{version:wt,type:"module",displayName:"uibuilder"}),E),ke=new ei;window.uibuilder?a("error","uibuilder.module.js","`uibuilder` already assigned to window. Have you tried to load it more than once?"):window.uibuilder=ke;window.uib?a("warn","uibuilder.module.js","`uib` shortcut already assigned to window."):window.uib=ke;window.$?a("warn","uibuilder.module.js","Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` or `uib.$` instead."):window.$=window.uibuilder.$;window.$$?a("warn","uibuilder.module.js","Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` or `uib.$$` instead."):window.$$=window.uibuilder.$$;window.$ui?a("warn","uibuilder.module.js","Cannot allocate the global `$ui`, it is already in use. Use `uibuilder.$ui` or `uib.$ui` instead."):window.$ui=window.uibuilder.$ui;var Js=ke;ke.start();customElements.define("uib-var",G);})();
 //# sourceMappingURL=uibuilder.iife.min.js.map
diff --git a/front-end/uibuilder.iife.min.js.map b/front-end/uibuilder.iife.min.js.map
index 1ef5ddf3..139e491a 100644
--- a/front-end/uibuilder.iife.min.js.map
+++ b/front-end/uibuilder.iife.min.js.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
   "sources": ["src/front-end-module/ui.js", "src/front-end-module/uibuilder.module.js", "src/components/uib-var.js", "node_modules/engine.io-parser/build/esm/commons.js", "node_modules/engine.io-parser/build/esm/encodePacket.browser.js", "node_modules/engine.io-parser/build/esm/contrib/base64-arraybuffer.js", "node_modules/engine.io-parser/build/esm/decodePacket.browser.js", "node_modules/engine.io-parser/build/esm/index.js", "node_modules/@socket.io/component-emitter/index.mjs", "node_modules/engine.io-client/build/esm/globalThis.browser.js", "node_modules/engine.io-client/build/esm/util.js", "node_modules/engine.io-client/build/esm/contrib/parseqs.js", "node_modules/engine.io-client/build/esm/transport.js", "node_modules/engine.io-client/build/esm/contrib/yeast.js", "node_modules/engine.io-client/build/esm/contrib/has-cors.js", "node_modules/engine.io-client/build/esm/transports/xmlhttprequest.browser.js", "node_modules/engine.io-client/build/esm/transports/polling.js", "node_modules/engine.io-client/build/esm/transports/websocket-constructor.browser.js", "node_modules/engine.io-client/build/esm/transports/websocket.js", "node_modules/engine.io-client/build/esm/transports/webtransport.js", "node_modules/engine.io-client/build/esm/transports/index.js", "node_modules/engine.io-client/build/esm/contrib/parseuri.js", "node_modules/engine.io-client/build/esm/socket.js", "node_modules/engine.io-client/build/esm/index.js", "node_modules/socket.io-client/build/esm/url.js", "node_modules/socket.io-parser/build/esm/index.js", "node_modules/socket.io-parser/build/esm/is-binary.js", "node_modules/socket.io-parser/build/esm/binary.js", "node_modules/socket.io-client/build/esm/on.js", "node_modules/socket.io-client/build/esm/socket.js", "node_modules/socket.io-client/build/esm/contrib/backo2.js", "node_modules/socket.io-client/build/esm/manager.js", "node_modules/socket.io-client/build/esm/index.js"],
-  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\n// Namespaces - See https://stackoverflow.com/a/52572048/1309986\n// const NAMESPACES = {\n//     svg: 'http://www.w3.org/2000/svg',\n//     html: 'http://www.w3.org/1999/xhtml',\n//     xml: 'http://www.w3.org/XML/1998/namespace',\n//     xlink: 'http://www.w3.org/1999/xlink',\n//     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n// }\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    //#region ---- Internal Methods ----\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                if (attrib === 'class' && Array.isArray(comp.attributes[attrib])) comp.attributes[attrib].join(' ')\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n    } // --- end of _uiManager ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    //#endregion ---- -------- ----\n    //#region ---- External Methods ----\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {HTMLElement|null} Selected HTML element or null\n     */\n    $(cssSelector) {\n        /** @type {*} Some kind of HTML element */\n        let el = document.querySelector(cssSelector)\n\n        if (!el) {\n            Ui.log(1, 'Uib:$', `No element found for CSS selector ${cssSelector}`)()\n            return null\n        }\n\n        if ( el.nodeName === 'TEMPLATE' ) {\n            el = el.content.firstElementChild\n            if (!el) {\n                Ui.log(0, 'Uib:$', `Template selected for CSS selector ${cssSelector} but it is empty`)()\n                return null\n            }\n        }\n\n        return el\n    }\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {string} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {HTMLElement[]} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$(cssSelector) {\n        return Array.from(document.querySelectorAll(cssSelector))\n    }\n\n    /** Add 1 or several class names to an element\n     * @param {string|string[]} classNames Single or array of classnames\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    addClass(classNames, el) {\n        if (!Array.isArray(classNames)) classNames = [classNames]\n        if (el) el.classList.add(...classNames)\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n                if (attrib.name === 'class') thisOut.classes = Array.from(node.classList)\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    /** Remove All, 1 or more class names from an element\n     * @param {undefined|null|\"\"|string|string[]} classNames Single or array of classnames. If undefined, \"\" or null, remove all classes\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    removeClass(classNames, el) {\n        if (!classNames) {\n            el.removeAttribute('class')\n            return\n        }\n        if (!Array.isArray(classNames)) classNames = [classNames]\n        if (el) el.classList.remove(...classNames)\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += `<div>${msg.payload}</div>`\n        if (ui.content) content += `<div>${ui.content}</div>`\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        console.log(this)\n        this._uiManager(msg)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName) {\n                if (propName === 'classes') propName = 'class'\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    const p = {}\n                    // Nightmare of different object types in a DOM Element!\n                    const cType = prop.constructor.name.toLowerCase()\n                    if (cType === 'namednodemap') {\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                    } else if (!cType.includes('map')) { // Ordinary properties (not a mapped type)\n                        p[propName] = prop\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                    }\n                    if (p.class) p.classes = Array.from(node.classList)\n                    out.push(p)\n                }\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    /** External alias for _uiComposeComponent\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    //#endregion ---- -------- ----\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n", "/* This is the Front-End JavaScript for uibuilder  in HTML Module form\n  It provides a number of global objects that can be used in your own javascript.\n  see the docs folder `./docs/uibuilder.module.md` for details of how to use this fully.\n\n  Please use the default index.js file for your own code and leave this as-is.\n  See Uib._meta for client version string\n\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n//#region --- Type Defs --- //\n/**\n * A string containing HTML markup\n * @typedef {string} html\n */\n//#endregion --- Type Defs --- //\n\n//#region --- We need the Socket.IO & ui libraries & the uib-var component  --- //\n// @ts-ignore - Note: Only works when using esbuild to bundle\nimport Ui from './ui'\nimport UibVar from '../components/uib-var'\nimport io from 'socket.io-client'\n\n// TODO - Maybe - check if already loaded as window['io']?\n// TODO - Maybe - Should this be moved to inside the class - would know the httpRoot then so less need to guess?\n// TODO           Or, could pull the cookie processing out of the class\n// const ioLocns = [ // Likely locations of the Socket.IO client library\n//     // Where it should normally be\n//     '../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and haven't changed httpNodeRoot\n//     '/uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and have changed httpNodeRoot\n//     '../../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Direct from the Internet - last ditch attempt\n//     'https://cdn.jsdelivr.net/npm/socket.io-client/+esm',\n// ]\n\n// let io\n// for (const locn of ioLocns) {\n//     try {\n//         ({ io } = await import(locn))\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library found at '${locn}'`)()\n//     } catch (e) {\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library not found at '${locn}'`)()\n//     }\n//     if (io) break\n// }\n// if (!io) log('error', 'uibuilder.module.js', 'Socket.IO client failed to load')()\n//#endregion -------- -------- -------- //\n\nconst version = '6.8.0-src'\n\n// TODO Add option to allow log events to be sent back to Node-RED as uib ctrl msgs\n//#region --- Module-level utility functions --- //\n\n// @ts-ignore Detect whether the loaded library is minified or not\nconst isMinified = !(/param/).test(function (param) { }) // eslint-disable-line no-unused-vars\n\n//#region --- print/console - debugging output functions --- //\n\n/** Default log level - Error & Warn */\nlet logLevel = isMinified ? 0 : 1  // When using minified lib, assume production and only log errors otherwise also log warn\n// function changeLogLevel(level) {\n//     logLevel = level\n//     console.trace = logLevel < 4 ? function(){} : console.trace\n//     console.debug = logLevel < 2 ? function(){} : console.debug\n//     if ( logLevel < 1 ) {\n//         console.log = console.group = console.groupEnd =  function(){}\n//     }\n// }\n\n// Experimental\nconst LOG_STYLES = {\n    // 0\n    error: {\n        css: 'background: red; color: black;',\n        txtCss: 'color: red; ',\n        pre: '\u26D4 ',\n        console: 'error',  // or trace\n    },\n    // 1\n    warn: {\n        css: 'background: darkorange; color: black;',\n        txtCss: 'color: darkorange; ',\n        pre: '\u26A0 ',\n        console: 'warn',\n    },\n    // 2\n    info: {\n        css: 'background: aqua; color: black;',\n        txtCss: 'color: aqua;',\n        pre: '\u2757 ',\n        console: 'info',\n    },\n    // 3\n    log: {\n        css: 'background: grey; color: yellow;',\n        txtCss: 'color: grey;',\n        pre: '',\n        console: 'log',\n    },\n    // 4\n    debug: {\n        css: 'background: chartreuse; color: black;',\n        txtCss: 'color: chartreuse;',\n        pre: '',\n        console: 'debug',\n    },\n    // 5\n    trace: {\n        css: 'background: indigo; color: yellow;',\n        txtCss: 'color: hotpink;',\n        pre: '',\n        console: 'log',\n    },\n\n    names: ['error', 'warn', 'info', 'log', 'debug', 'trace'],\n    reset: 'color: inherit;',\n    head: 'font-weight:bold; font-style:italic;',\n    level: 'font-weight:bold; border-radius: 3px; padding: 2px 5px; display:inline-block;',\n}\n/** Custom logging. e.g. log(2, 'here:there', 'jiminy', {fred:'jim'})()\n * @returns {Function} Log function @example log(2, 'here:there', 'jiminy', {fred:'jim'})()\n */\nfunction log() {\n    // Get the args\n    const args = Array.prototype.slice.call(arguments)\n\n    // 1st arg is the log level/type\n    let level = args.shift()\n    let strLevel\n    switch (level) {\n        case 'trace':\n        case 5: {\n            if (logLevel < 5) break\n            level = 5 // make sure level is numeric\n            strLevel = 'trace'\n            break\n        }\n\n        case 'debug':\n        case 4: {\n            if (logLevel < 4) break\n            level = 4\n            strLevel = 'debug'\n            break\n        }\n\n        case 'log':\n        case 3: {\n            if (logLevel < 3) break\n            level = 3\n            strLevel = 'log'\n            break\n        }\n\n        case 'info':\n        case '':\n        case 2: {\n            if (logLevel < 2) break\n            level = 2\n            strLevel = 'info'\n            break\n        }\n\n        case 'warn':\n        case 1: {\n            if (logLevel < 1) break\n            level = 1\n            strLevel = 'warn'\n            break\n        }\n\n        case 'error':\n        case 'err':\n        case 0: {\n            if (logLevel < 0) break\n            level = 0\n            strLevel = 'error'\n            break\n        }\n\n        default: {\n            level = -1\n            break\n        }\n\n    }\n\n    // If set to something unknown, no log output\n    if (strLevel === undefined) return function () { }\n\n    // 2nd arg is a heading that will be colour highlighted\n    const head = args.shift()\n\n    // Bind back to console.log (could use console[strLevel] but some levels ignore some formatting, use console.xxx directly or dedicated fn)\n    return Function.prototype.bind.call(\n        console[LOG_STYLES[strLevel].console],\n        console,\n        `%c${LOG_STYLES[strLevel].pre}${strLevel}%c [${head}]`, `${LOG_STYLES.level} ${LOG_STYLES[strLevel].css}`, `${LOG_STYLES.head} ${LOG_STYLES[strLevel].txtCss}`,\n        ...args\n    )\n}\n//#endregion\n\n/** A hack to dynamically load a remote module and wait until it is loaded\n * @param {string} url The URL of the module to load\n * @returns {object|null} Either the result object or null (if the load fails)\n */\n// function loadModule(url) { // eslint-disable-line no-unused-vars\n//     let done\n\n//     import(url)\n//         .then(res => {\n//             log('debug', '>> then >>', res)()\n//             done = res\n//         })\n//         .catch(err => {\n//             console.error(`[uibuilder:loadModule] Could not load module ${url}`, err)\n//             done = null\n//         })\n\n//     //  eslint-disable-next-line no-empty\n//     while (!done) { } // eslint-disable-line no-unmodified-loop-condition\n\n//     return done\n// }\n\n/** Makes a null or non-object into an object\n * If not null, moves \"thing\" to {payload:thing}\n *\n * @param {*} thing Thing to check\n * @param {string} [property='payload'] property that \"thing\" is moved to if not null and not an object\n * @returns {!object} _\n */\nfunction makeMeAnObject(thing, property) {\n    if (!property) property = 'payload'\n    if (typeof property !== 'string') {\n        log('warn', 'uibuilderfe:makeMeAnObject', `WARNING: property parameter must be a string and not: ${typeof property}`)()\n        property = 'payload'\n    }\n    let out = {}\n    if ( thing !== null && thing.constructor.name === 'Object' ) {\n        out = thing\n    } else if (thing !== null) {\n        out[property] = thing\n    }\n    return out\n} // --- End of make me an object --- //\n\n/** Joins all arguments as a URL string\n * see http://stackoverflow.com/a/28592528/3016654\n * since v1.0.10, fixed potential double // issue\n * arguments {string} URL fragments\n * @returns {string} _\n */\nfunction urlJoin() {\n    const paths = Array.prototype.slice.call(arguments)\n    const url = '/' + paths.map(function (e) {\n        return e.replace(/^\\/|\\/$/g, '')\n    })\n        .filter(function (e) {\n            return e\n        })\n        .join('/')\n    return url.replace('//', '/')\n} // ---- End of urlJoin ---- //\n\n/** Convert JSON to Syntax Highlighted HTML\n * @param {object} json A JSON/JavaScript Object\n * @returns {html} Object reformatted as highlighted HTML\n */\nfunction syntaxHighlight(json) {\n    if (json === undefined) {\n        json = '<span class=\"undefined\">undefined</span>'\n    } else {\n        try {\n            json = JSON.stringify(json, undefined, 4)\n            // json = json.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;') // eslint-disable-line newline-per-chained-call\n            json = json.replace(/(\"(\\\\u[a-zA-Z0-9]{4}|\\\\[^u]|[^\\\\\"])*\"(\\s*:)?|\\b(true|false|null)\\b|-?\\d+(?:\\.\\d*)?(?:[eE][+-]?\\d+)?)/g, function (match) { // eslint-disable-line prefer-named-capture-group\n                let cls = 'number'\n                if ((/^\"/).test(match)) {\n                    if ((/:$/).test(match)) {\n                        cls = 'key'\n                    } else {\n                        cls = 'string'\n                    }\n                } else if ((/true|false/).test(match)) {\n                    cls = 'boolean'\n                } else if ((/null/).test(match)) {\n                    cls = 'null'\n                }\n                return `<span class=\"${cls}\">${match}</span>`\n            })\n        } catch (e) {\n            json = `Syntax Highlight ERROR: ${e.message}`\n        }\n    }\n    return json\n}\n\n/** msg._ui handling functions */\nconst _ui = new Ui(window, log, syntaxHighlight)\n\n//#endregion --- Module-level utility functions --- //\n\n/** Define and export the Uib class - note that an instance of the class is also exported in the wrap-up\n * @typicalname uibuilder\n */\nexport const Uib = class Uib {\n\n    //#region --- Static variables ---\n    static _meta = {\n        version: version,\n        type: 'module',\n        displayName: 'uibuilder',\n    }\n    //#endregion ---- ---- ---- ----\n\n    //#region private class vars\n\n    // How many times has the loaded instance connected to Socket.IO (detect if not a new load?)\n    connectedNum = 0\n    // event listener callbacks by property name\n    // #events = {}\n    // Socket.IO channel names\n    _ioChannels = { control: 'uiBuilderControl', client: 'uiBuilderClient', server: 'uiBuilder' }\n    /** setInterval holder for pings @type {function|undefined} */\n    #pingInterval\n    // onChange event callbacks\n    #propChangeCallbacks = {}\n    // onTopic event callbacks\n    #msgRecvdByTopicCallbacks = {}\n    // Is Vue available?\n    isVue = false\n    // What version? Set in startup if Vue is loaded. Won't always work\n    vueVersion = undefined\n    /** setInterval id holder for Socket.IO checkConnect\n     * @type {number|null}\n     */\n    #timerid = null\n    // Holds the reference ID for the internal msg change event handler so that it can be cancelled\n    #MsgHandler\n    // Placeholder for io.socket - can't make a # var until # fns allowed in all browsers\n    _socket\n    // Placeholder for an observer that watches the whole DOM for changes - can't make a # var until # fns allowed in all browsers\n    _htmlObserver\n    // Has showMsg been turned on?\n    #isShowMsg = false\n    // Has showStatus been turned on?\n    #isShowStatus = false\n    // If true, URL hash changes send msg back to node-red. Controlled by watchUrlHash()\n    #sendUrlHash = false\n    // Externally accessible command functions (NB: Case must match) - remember to update _uibCommand for new commands\n    #extCommands = [\n        'elementExists', 'get', 'getManagedVarList', 'getWatchedVars', 'htmlSend', 'include',\n        'navigate', 'scrollTo', 'set', 'showMsg', 'showStatus', 'uiGet', 'uiWatch', 'watchUrlHash',\n    ]\n\n    /** @type {{[key: string]: string}} Managed uibuilder variables */\n    #managedVars = {}\n\n    // What status variables to show via showStatus()\n    #showStatus = {\n        online: { 'var': 'online', 'label': 'Online?', 'description': 'Is the browser online?', },\n        ioConnected: { 'var': 'ioConnected', 'label': 'Socket.IO connected?', 'description': 'Is Socket.IO connected?', },\n        connectedNum: { 'var': 'connectedNum', 'label': '# reconnections', 'description': 'How many times has Socket.IO had to reconnect since last page load?', },\n\n        clientId: { 'var': 'clientId', 'label': 'Client ID', 'description': 'Static client unique id set in Node-RED. Only changes when browser is restarted.', },\n        tabId: { 'var': 'tabId', 'label': 'Browser tab ID', 'description': 'Static unique id for the browser\\'s current tab', },\n        cookies: { 'var': 'cookies', 'label': 'Cookies', 'description': 'Cookies set in Node-RED', },\n        httpNodeRoot: { 'var': 'httpNodeRoot', 'label': 'httpNodeRoot', 'description': 'From Node-RED\\' settings.js, affects URL\\'s. May be wrong for pages in sub-folders', },\n        pageName: { 'var': 'pageName', 'label': 'Page name', 'description': 'Actual name of this page', },\n\n        ioNamespace: { 'var': 'ioNamespace', 'label': 'SIO namespace', 'description': 'Socket.IO namespace - unique to each uibuilder node instance', },\n        // ioPath: { 'var': 'ioPath', 'label': 'SIO path', 'description': '', }, // no longer needed in the modern client\n        socketError: { 'var': 'socketError', 'label': 'Socket error', 'description': 'If the Socket.IO connection has failed, says why', },\n\n        msgsSent: { 'var': 'msgsSent', 'label': '# msgs sent', 'description': 'How many standard messages have been sent to Node-RED?', },\n        msgsReceived: { 'var': 'msgsReceived', 'label': '# msgs received', 'description': 'How many standard messages have been received from Node-RED?', },\n        msgsSentCtrl: { 'var': 'msgsSentCtrl', 'label': '# control msgs sent', 'description': 'How many control messages have been sent to Node-RED?', },\n        msgsCtrlReceived: { 'var': 'msgsCtrlReceived', 'label': '# control msgs received', 'description': 'How many control messages have been received from Node-RED?', },\n        originator: { 'var': 'originator', 'label': 'Node Originator', 'description': 'If the last msg from Node-RED was from a `uib-sender` node, this will be its node id so that messasges can be returned to it', },\n        topic: { 'var': 'topic', 'label': 'Default topic', 'description': 'Optional default topic to be included in outgoing standard messages', },\n\n        started: { 'var': 'started', 'label': 'Has uibuilder client started?', 'description': 'Whether `uibuilder.start()` ran successfully. This should self-run and should not need to be run manually', },\n        version: { 'var': 'version', 'label': 'uibuilder client version', 'description': 'The version of the loaded uibuilder client library', },\n        serverTimeOffset: { 'var': 'serverTimeOffset', 'label': 'Server time offset (Hrs)', 'description': 'The number of hours difference between the Node-red server and the client', },\n    }\n\n    // Track ui observers (see uiWatch)\n    #uiObservers = {}\n\n    //#endregion\n\n    //#region public class vars\n\n    // TODO Move to proper getters\n    //#region ---- Externally read-only (via .get method) ---- //\n    // version - moved to _meta\n    /** Client ID set by uibuilder on connect */\n    clientId = ''\n    /** The collection of cookies provided by uibuilder */\n    cookies = {}\n    /** Copy of last control msg object received from sever */\n    ctrlMsg = {}\n    /** Is Socket.IO client connected to the server? */\n    ioConnected = false\n    // Is the browser tab containing this page visible or not?\n    isVisible = false\n    // Remember the last page (re)load/navigation type: navigate, reload, back_forward, prerender\n    lastNavType = ''\n    /** Last std msg received from Node-RED */\n    msg = {}\n    /** number of messages sent to server since page load */\n    msgsSent = 0\n    /** number of messages received from server since page load */\n    msgsReceived = 0\n    /** number of control messages sent to server since page load */\n    msgsSentCtrl = 0\n    /** number of control messages received from server since page load */\n    msgsCtrlReceived = 0\n    /** Is the client online or offline? */\n    online = navigator.onLine\n    /** last control msg object sent via uibuilder.send() @since v2.0.0-dev3 */\n    sentCtrlMsg = {}\n    /** last std msg object sent via uibuilder.send() */\n    sentMsg = {}\n    /** placeholder to track time offset from server, see fn socket.on(ioChannels.server ...) */\n    serverTimeOffset = null\n    /** placeholder for a socket error message */\n    socketError = null\n    // tab identifier from session storage\n    tabId = ''\n    // Actual name of current page (set in constructor)\n    pageName = null\n    // Is the DOMPurify library loaded? Updated in start()\n    purify = false\n    // Is the Markdown-IT library loaded? Updated in start()\n    markdown = false\n    // Current URL hash. Initial set is done from start->watchHashChanges via a set to make it watched\n    urlHash = location.hash\n    //#endregion ---- ---- ---- ---- //\n\n    // TODO Move to proper getters/setters\n    //#region ---- Externally Writable (via .set method, read via .get method) ---- //\n    /** Default originator node id - empty string by default\n     * @type {string}\n     */\n    originator = ''\n    /** Default topic - used by send if set and no topic provided\n     * @type {(string|undefined)}\n     */\n    topic = undefined\n    //#endregion ---- ---- ---- ---- //\n\n    //#region ---- These are unlikely to be needed externally: ----\n    autoSendReady = true\n    httpNodeRoot = '' // Node-RED setting (via cookie)\n    ioNamespace = ''\n    ioPath = ''\n    retryFactor = 1.5       // starting delay factor for subsequent reconnect attempts\n    retryMs = 2000          // starting retry ms period for manual socket reconnections workaround\n    storePrefix = 'uib_'    // Prefix for all uib-related localStorage\n    started = false\n    // NOTE: These can only change when a client (re)connects\n    socketOptions = {\n        path: this.ioPath,\n        transports: ['polling', 'websocket'],\n        // Using callback so that they are updated automatically on (re)connect\n        // Only put things in here that will be valid for a websocket connected session\n        auth: (cb) => {\n            cb({ // eslint-disable-line n/no-callback-literal\n                clientVersion: version,\n                clientId: this.clientId,\n                pathName: window.location.pathname,\n                urlParams: Object.fromEntries(new URLSearchParams(location.search)),\n                pageName: this.pageName,\n                tabId: this.tabId,\n                lastNavType: this.lastNavType,\n                connectedNum: ++this.connectedNum,\n                // Used to calculate the diff between the server and client connection timestamps - reported if >1 minute\n                browserConnectTimestamp: (new Date()).toISOString(),\n            })\n        },\n        transportOptions: {\n            // Can only set headers when polling\n            polling: {\n                extraHeaders: {\n                    'x-clientid': `${Uib._meta.displayName}; ${Uib._meta.type}; ${Uib._meta.version}; ${this.clientId}`,\n                }\n            },\n        },\n    }\n    //#endregion -- not external --\n\n    //#endregion --- End of variables ---\n\n    //#region ------- Getters and Setters ------- //\n\n    // Change logging level dynamically (affects both console. and print.)\n    set logLevel(level) { logLevel = level; console.log('%c\u2757 info%c [logLevel]', `${LOG_STYLES.level} ${LOG_STYLES.info.css}`, `${LOG_STYLES.head} ${LOG_STYLES.info.txtCss}`, `Set to ${level} (${LOG_STYLES.names[level]})`) /* changeLogLevel(level)*/ }\n    get logLevel() { return logLevel }\n\n    get meta() { return Uib._meta }\n\n    /** Function to set uibuilder properties to a new value - works on any property except _* or #*\n     * Also triggers any event listeners.\n     * Example: this.set('msg', {topic:'uibuilder', payload:42});\n     * @param {string} prop Any uibuilder property who's name does not start with a _ or #\n     * @param {*} val The set value of the property or a string declaring that a protected property cannot be changed\n     * @param {boolean} [store] If true, the variable is also saved to the browser localStorage if possible\n     * @param {boolean} [autoload] If true & store is true, on load, uib will try to restore the value from the store automatically\n     * @returns {*} Input value\n     */\n    set(prop, val, store = false, autoload = false) {\n        // Check for excluded properties - we don't want people to set these\n        // if (this.#excludedSet.indexOf(prop) !== -1) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:set', `Cannot use set() on protected property \"${prop}\"`)()\n            return `Cannot use set() on protected property \"${prop}\"`\n        }\n\n        // We must add the var to the uibuilder object\n        this[prop] = val\n\n        // Keep track of all managed variables\n        this.#managedVars[prop] = prop\n\n        // If requested, save to store\n        if (store === true) this.setStore(prop, val, autoload)\n\n        log('trace', 'Uib:set', `prop set - prop: ${prop}, val: `, val, ` store: ${store}, autoload: ${autoload}`)()\n\n        // Trigger this prop's event callbacks (listeners which are set by this.onChange)\n        // this.emit(prop, val)\n\n        // trigger an event on the prop name, pass both the name and value to the event details\n        this._dispatchCustomEvent('uibuilder:propertyChanged', { 'prop': prop, 'value': val, 'store': store, 'autoload': autoload })\n\n        return val\n    }\n\n    /** Function to get the value of a uibuilder property\n     * Example: uibuilder.get('msg')\n     * @param {string} prop The name of the property to get as long as it does not start with a _ or #\n     * @returns {*|undefined} The current value of the property\n     */\n    get(prop) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:get', `Cannot use get() on protected property \"${prop}\"`)()\n            return\n        }\n        if (prop === 'version') return Uib._meta.version\n        if (prop === 'msgsCtrl') return this.msgsCtrlReceived\n        if (prop === 'reconnections') return this.connectedNum\n        if (this[prop] === undefined) {\n            log('warn', 'Uib:get', `get() - property \"${prop}\" is undefined`)()\n        }\n        return this[prop]\n    }\n\n    /** Write to localStorage if possible. console error output if can't write\n     * Also uses this.storePrefix\n     * @example\n     *   uibuilder.setStore('fred', 42)\n     *   console.log(uibuilder.getStore('fred'))\n     * @param {string} id localStorage var name to be used (prefixed with 'uib_')\n     * @param {*} value value to write to localstore\n     * @param {boolean} [autoload] If true, on load, uib will try to restore the value from the store\n     * @returns {boolean} True if succeeded else false\n     */\n    setStore(id, value, autoload = false) {\n        let autoVars = {}\n        if (autoload === true) {\n            try {\n                autoVars = this.getStore('_uibAutoloadVars') || {}\n            } catch (e) {}\n        }\n        if (typeof value === 'object') {\n            try {\n                value = JSON.stringify(value)\n            } catch (e) {\n                log('error', 'Uib:setStore', 'Cannot stringify object, not storing. ', e)()\n                return false\n            }\n        }\n        try {\n            localStorage.setItem(this.storePrefix + id, value)\n            if (autoload) {\n                autoVars[id] = id\n                try {\n                    localStorage.setItem(this.storePrefix + '_uibAutoloadVars', JSON.stringify(autoVars))\n                } catch (e) {\n                    log('error', 'Uib:setStore', 'Cannot save autoload list. ', e)()\n                }\n            }\n            this._dispatchCustomEvent('uibuilder:propertyStored', { 'prop': id, 'value': value, 'autoload': autoload })\n            return true\n        } catch (e) {\n            log('error', 'Uib:setStore', 'Cannot write to localStorage. ', e)()\n            return false\n        }\n    } // --- end of setStore --- //\n\n    /** Attempt to get and re-hydrate a key value from localStorage\n     * Note that all uib storage is automatically prefixed using this.storePrefix\n     * @param {*} id The key of the value to attempt to retrieve\n     * @returns {*|null|undefined} The re-hydrated value of the key or null if key not found, undefined on error\n     */\n    getStore(id) {\n        try {\n            // @ts-ignore\n            return JSON.parse(localStorage.getItem(this.storePrefix + id))\n        } catch (e) { }\n        try {\n            return localStorage.getItem(this.storePrefix + id)\n        } catch (e) {\n            return undefined\n        }\n    }\n\n    /** Remove a given id from the uib keys in localStorage\n     * @param {*} id The key to remove\n     */\n    removeStore(id) {\n        try {\n            localStorage.removeItem(this.storePrefix + id)\n        } catch (e) { }\n    }\n\n    /** Returns a list of uibuilder properties (variables) that can be watched with onChange\n     * @returns {{[key: string]: string}} List of uibuilder managed variables\n     */\n    getManagedVarList() {\n        return this.#managedVars\n    }\n\n    getWatchedVars() {\n        return Object.keys(this.#propChangeCallbacks)\n    }\n\n    //#endregion ------- -------- ------- //\n\n    //#region ------- Our own event handling system ---------- //\n\n    // TODO Add option to send event details back to Node-RED as uib ctrl msg\n    /** Standard fn to create a custom event with details & dispatch it\n     * @param {string} title The event name\n     * @param {*} details Any details to pass to event output\n     */\n    _dispatchCustomEvent(title, details) {\n        const event = new CustomEvent(title, { detail: details })\n        document.dispatchEvent(event)\n    }\n\n    // See the this.#propChangeCallbacks & msgRecvdByTopicCallbacks private vars\n\n    /** Register on-change event listeners for uibuilder tracked properties\n     * Make it possible to register a function that will be run when the property changes.\n     * Note that you can create listeners for non-existant properties\n     * @example: uibuilder.onChange('msg', (msg) => { console.log('uibuilder.msg changed! It is now: ', msg) })\n     *\n     * @param {string} prop The property of uibuilder that we want to monitor\n     * @param {Function} callback The function that will run when the property changes, parameter is the new value of the property after change\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelChange if you need to remove a listener\n     */\n    onChange(prop, callback) {\n        // Note: Property does not have to exist yet\n\n        // console.debug(`[Uib:onchange] pushing new callback (event listener) for property: ${prop}`)\n\n        // Create a new array or add to the array of callback functions for the property in the events object\n        // if (this.#events[prop]) {\n        //     this.#events[prop].push(callback)\n        // } else {\n        //     this.#events[prop] = [callback]\n        // }\n\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#propChangeCallbacks[prop]) this.#propChangeCallbacks[prop] = { _nextRef: 1 }\n        else this.#propChangeCallbacks[prop]._nextRef++\n\n        const nextCbRef = this.#propChangeCallbacks[prop]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const propChangeCallback = this.#propChangeCallbacks[prop][nextCbRef] = function propChangeCallback(e) {\n            // If the prop name matches the 1st arg in the onChange fn:\n            if (prop === e.detail.prop) {\n                const value = e.detail.value\n                // console.warn('[Uib:onChange:evt] uibuilder:propertyChanged. ', e.detail)\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(value, value)\n            }\n        }\n\n        document.addEventListener('uibuilder:propertyChanged', propChangeCallback)\n\n        return nextCbRef\n    } // ---- End of onChange() ---- //\n\n    cancelChange(prop, cbRef) {\n        document.removeEventListener('uibuilder:propertyChanged', this.#propChangeCallbacks[prop][cbRef])\n        delete this.#propChangeCallbacks[prop][cbRef]\n        // this.#propChangeCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Register a change callback for a specific msg.topic\n     * Similar to onChange but more convenient if needing to differentiate by msg.topic.\n     * @example: let otRef = uibuilder.onTopic('mytopic', function(){ console.log('Received a msg with msg.topic=`mytopic`. msg: ', this) })\n     * To cancel a change listener: uibuilder.cancelTopic('mytopic', otRef)\n     *\n     * @param {string} topic The msg.topic we want to listen for\n     * @param {Function} callback The function that will run when an appropriate msg is received. `this` inside the callback as well as the cb's single argument is the received msg.\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelTopic if you need to remove a listener\n     */\n    onTopic(topic, callback) {\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#msgRecvdByTopicCallbacks[topic]) this.#msgRecvdByTopicCallbacks[topic] = { _nextRef: 1 }\n        else this.#msgRecvdByTopicCallbacks[topic]._nextRef++\n\n        const nextCbRef = this.#msgRecvdByTopicCallbacks[topic]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const msgRecvdEvtCallback = this.#msgRecvdByTopicCallbacks[topic][nextCbRef] = function msgRecvdEvtCallback(e) {\n            const msg = e.detail\n            // console.log('[Uib:onTopic:evt] uibuilder:stdMsgReceived where topic matches. ', e.detail)\n            if (msg.topic === topic) {\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(msg, msg)\n            }\n        }\n\n        document.addEventListener('uibuilder:stdMsgReceived', msgRecvdEvtCallback)\n\n        return nextCbRef\n    }\n\n    cancelTopic(topic, cbRef) {\n        document.removeEventListener('uibuilder:stdMsgReceived', this.#msgRecvdByTopicCallbacks[topic][cbRef])\n        delete this.#msgRecvdByTopicCallbacks[topic][cbRef]\n        // this.#msgRecvdCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Trigger event listener for a given property\n     * Called when uibuilder.set is used\n     *\n     * @param {*} prop The property for which to run the callback functions\n     * arguments: Additional arguments contain the value to pass to the event callback (e.g. newValue)\n     */\n    // emit(prop) {\n    //     var evt = this.#events[prop]\n    //     if (!evt) {\n    //         return\n    //     }\n    //     var args = Array.prototype.slice.call(arguments, 1)\n    //     for (var i = 0; i < evt.length; i++) {\n    //         evt[i].apply(this, args)\n    //     }\n    //     log('trace', 'Uib:emit', `${evt.length} listeners run for prop ${prop} `)()\n    // }\n\n    /** Forcibly removes all event listeners from the events array\n     * Use if you need to re-initialise the environment\n     */\n    // clearEventListeners() {\n    //     this.#events = []\n    // } // ---- End of clearEventListeners() ---- //\n\n    /** Clear a single property event listeners\n     * @param {string} prop The property of uibuilder for which we want to clear the event listener\n     */\n    // clearListener(prop) {\n    //     if (this.#events[prop]) delete this.#events[prop]\n    // }\n\n    //#endregion ---------- End of event handling system ---------- //\n\n    //#region ------- General Utility Functions -------- //\n\n    /** Check supplied msg from server for a timestamp - if received, work out & store difference to browser time\n     * @param {object} receivedMsg A message object recieved from Node-RED\n     * @returns {void} Updates self.serverTimeOffset if different to previous value\n     */\n    _checkTimestamp(receivedMsg) {\n        if (Object.prototype.hasOwnProperty.call(receivedMsg, 'serverTimestamp')) {\n            const serverTimestamp = new Date(receivedMsg.serverTimestamp)\n            // @ts-ignore\n            const offset = Math.round(((new Date()) - serverTimestamp) / 3600000) // in ms /3.6m to get hours\n            if (offset !== this.serverTimeOffset) {\n                log('trace', `Uib:checkTimestamp:${this._ioChannels.server} (server)`, `Offset changed to: ${offset} from: ${this.serverTimeOffset}`)()\n                this.set('serverTimeOffset', offset)\n            }\n        }\n    }\n\n    /** Set the default originator. Set to '' to ignore. Used with uib-sender.\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    setOriginator(originator = '') {\n        this.set('originator', originator)\n    } // ---- End of setOriginator ---- //\n\n    /** HTTP Ping/Keep-alive - makes a call back to uibuilder's ExpressJS server and receives a 204 response\n     * Can be used to keep sessions alive.\n     * @example\n     *   uibuilder.setPing(2000) // repeat every 2 sec. Re-issue with ping(0) to turn off repeat.\n     *   uibuilder.onChange('ping', function(data) {\n     *      console.log('pinger', data)\n     *   })\n     * @param {number} ms Repeat interval in ms\n     */\n    setPing(ms = 0) {\n        const oReq = new XMLHttpRequest()\n        oReq.addEventListener('load', () => {\n            const headers = (oReq.getAllResponseHeaders()).split('\\r\\n')\n            const elapsedTime = Number(new Date()) - Number((oReq.responseURL.split('='))[1])\n            this.set('ping', {\n                success: !!((oReq.status === 201) || (oReq.status === 204)), // true if one of the listed codes else false\n                status: oReq.status,\n                headers: headers,\n                url: oReq.responseURL,\n                elapsedTime: elapsedTime,\n            })\n        })\n\n        if (this.#pingInterval) {\n            clearInterval(this.#pingInterval)\n            this.#pingInterval = undefined\n        }\n\n        oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n        oReq.send()\n\n        if (ms > 0) {\n            this.#pingInterval = setInterval(() => {\n                oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n                oReq.send()\n            }, ms)\n        }\n    } // ---- End of ping ---- //\n\n    log() {\n        log(...arguments)()\n    }\n\n    /** Convert JSON to Syntax Highlighted HTML\n     * @param {object} json A JSON/JavaScript Object\n     * @returns {html} Object reformatted as highlighted HTML\n     */\n    syntaxHighlight(json) {\n        return syntaxHighlight(json)\n    } // --- End of syntaxHighlight --- //\n\n    /** Copies a uibuilder variable to the browser clipboard\n     * @param {string} varToCopy The name of the uibuilder variable to copy to the clipboard\n     */\n    copyToClipboard(varToCopy) {\n        let data = ''\n        try {\n            console.log(this.get(varToCopy), JSON.stringify(this.get(varToCopy)))\n            data = JSON.stringify(this.get(varToCopy))\n        } catch (e) {\n            log('error', 'copyToClipboard', `Could not copy \"${varToCopy}\" to clipboard.`, e.message)()\n        }\n        navigator.clipboard.writeText(data)\n    } // --- End of copyToClipboard --- //\n\n    /** DEPRECATED FOR NOW - wasn't working properly.\n     * Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.\n     * Requires IntersectionObserver (available to all mainstream browsers from early 2019)\n     * Automatically sends a msg back to Node-RED.\n     * Requires the element to already exist.\n     * @returns {false}\n     */\n    elementIsVisible() {\n        const info = 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'\n        log('error', 'uib:elementIsVisible', info)()\n        this.send({payload: 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'})\n        return false\n    } // --- End of elementIsVisible --- //\n\n    /** Does the chosen CSS Selector currently exist?\n     * Automatically sends a msg back to Node-RED unless turned off.\n     * @param {string} cssSelector Required. CSS Selector to examine for visibility\n     * @param {boolean} [msg] Optional, default=true. If true also sends a message back to Node-RED\n     * @returns {boolean} True if the element exists\n     */\n    elementExists(cssSelector, msg = true) {\n        const el = document.querySelector(cssSelector)\n\n        let exists = false\n        if (el !== null) exists = true\n\n        if (msg === true) {\n            this.send({\n                payload: exists,\n                info: `Element \"${cssSelector}\" ${exists ? 'exists' : 'does not exist'}`\n            })\n        }\n\n        return exists\n    } // --- End of elementExists --- //\n\n    /** Only keep the URL Hash & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return '#' + url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Set up an event listener to watch for hash changes\n     * and set the watchable urlHash variable\n     */\n    _watchHashChanges() {\n        this.set('urlHash', location.hash)\n        window.addEventListener('hashchange', (event) => {\n            this.set('urlHash', location.hash)\n            if (this.#sendUrlHash === true) {\n                this.send({ topic: 'hashChange', payload: location.hash, newHash: this.keepHashFromUrl(event.newURL), oldHash: this.keepHashFromUrl(event.oldURL) })\n            }\n        })\n    }\n\n    /** Returns true/false or a default value for truthy/falsy and other values\n     * @param {string|number|boolean|*} val The value to test\n     * @param {any} deflt Default value to use if the value is not truthy/falsy\n     * @returns {boolean|any} The truth! Or the default\n     */\n    truthy(val, deflt) {\n        let ret\n        if (['on', 'On', 'ON', 'true', 'True', 'TRUE', '1', true, 1].includes(val)) ret = true\n        else if (['off', 'Off', 'OFF', 'false', 'False', 'FALSE', '0', false, 0].includes(val)) ret = false\n        else ret = deflt\n        return ret\n    }\n\n    /** Turn on/off/toggle sending URL hash changes back to Node-RED\n     * @param {string|number|boolean|undefined} [toggle] Optional on/off/etc\n     * @returns {boolean} True if we will send a msg to Node-RED on a hash change\n     */\n    watchUrlHash(toggle) {\n        this.#sendUrlHash = this.truthy(toggle, this.#sendUrlHash !== true)\n        return this.#sendUrlHash\n    }\n\n    /** Navigate to a new page or a new route (hash)\n     * @param {string} url URL to navigate to. Can be absolute or relative (to current page) or just a hash for a route change\n     * @returns {Location} The new window.location string\n     */\n    navigate(url) {\n        if (url) window.location.href = url\n        return window.location\n    }\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- UI handlers --------- //\n\n    //#region -- Direct to _ui --\n    // ! NOTE: Direct assignments change the target `this` to here. Use with caution\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {HTMLElement|null} Selected HTML element or null\n     */\n    $ = _ui.$\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {string} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {HTMLElement[]} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$ = _ui.$$\n\n    /** Reference to the full ui library */\n    $ui = _ui\n\n    /** Add 1 or several class names to an element\n     * @param {string|string[]} classNames Single or array of classnames\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    addClass = _ui.addClass\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        return _ui.convertMarkdown\n    }\n\n    /** ASYNC: Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     */\n    async include(url, uiOptions) {\n        await _ui.include(url, uiOptions)\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        _ui.loadScriptSrc(url)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        _ui.loadStyleSrc(url)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        _ui.loadScriptTxt(textFn)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        _ui.loadStyleTxt(textFn)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        _ui.loadui(url)\n    }\n\n    /** Remove All, 1 or more class names from an element\n     * @param {undefined|null|\"\"|string|string[]} classNames Single or array of classnames. If undefined, \"\" or null, remove all classes\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    removeClass = _ui.removeClass\n\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        _ui.replaceSlot(el, component)\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        _ui.replaceSlotMarkdown(el, component)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        return _ui.sanitiseHTML(html)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) {\n        _ui.showDialog(type, ui, msg)\n    }\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        _ui.ui(json)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        return _ui.uiGet(cssSelector, propName)\n    }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} component Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, component) {\n        _ui.uiEnhanceElement(el, component)\n    }\n\n    //#endregion -- direct to _ui --\n\n    /** * Show/hide a display card on the end of the visible HTML that will dynamically display the last incoming msg from Node-RED\n     * The card has the id `uib_last_msg`. Updates are done from a listener set up in the start function.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showMsg(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowMsg\n        this.#isShowMsg = showHide\n        let slot = 'Waiting for a message from Node-RED'\n\n        if (this.msg && Object.keys(this.msg).length > 0) {\n            slot = this.syntaxHighlight(this.msg)\n        }\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_last_msg_wrap',\n                ],\n            })\n        } else {\n            _ui._uiReplace({\n                components: [\n                    {\n                        type: 'div',\n                        id: 'uib_last_msg_wrap',\n                        parent: parent,\n                        attributes: {\n                            title: 'Last message from Node-RED',\n                        },\n                        components: [\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.copyToClipboard(\"msg\")',\n                                    class: 'compact',\n                                    style: 'right:3em;',\n                                },\n                                slot: '\uD83D\uDCCB',\n                            },\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.showMsg()',\n                                    class: 'compact',\n                                    style: 'right:.5em;',\n                                },\n                                slot: '\u26D4',\n                            },\n                            {\n                                type: 'pre',\n                                id: 'uib_last_msg',\n                                // parent: 'uib_last_msg_wrap',\n                                attributes: {\n                                    class: 'syntax-highlight',\n                                },\n                                slot: slot,\n                            },\n                        ],\n                    },\n                ],\n            })\n        }\n\n        return showHide\n    }\n\n    /** Show a browser notification if possible.\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * @example uibuilder.notify( 'My simple message to the user' )\n     * @example uibuilder.notify( {topic: 'My Title', payload: 'My simple message to the user'} )\n     * @example uibuilder.notify( {title: 'My Title', body: 'My simple message to the user'} )\n     * @example // If config.return = true, a promise is returned.\n     * // The resolved promise is only returned if the notification is clicked by the user.\n     * // Can be used to send the response back to Node-RED\n     * uibuilder.notify(notifyConfig).then( res => uibuilder.eventSend(res) )\n     * @ref https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config data or simple message string\n     * @returns {Promise<Event>|null} A promise that resolves to the click event or null\n     */\n    notify(config) {\n        if (config.return) return _ui.notification(config)\n\n        _ui.notification(config)\n            .then( res => { // eslint-disable-line promise/always-return\n                log('info', 'Uib:notification', 'Notification completed event', res)()\n                // if (config.return) return res\n            })\n            .catch( err => {\n                log('error', 'Uib:notification', 'Notification error event', err)()\n            })\n        return null\n    }\n\n    /** Scroll the page\n     * https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollIntoView\n     * @param {string} [cssSelector] Optional. If not set, scrolls to top of page.\n     * @param {{block:(string|undefined),inline:(string|undefined),behavior:(string|undefined)}} [opts] Optional. DOM scrollIntoView options\n     * @returns {boolean} True if element was found, false otherwise\n     */\n    scrollTo(cssSelector, opts) {\n        // @ts-ignore\n        if (!opts) opts = {}\n        if (!cssSelector || cssSelector === 'top'  || cssSelector === 'start') cssSelector = 'body'\n        else if (cssSelector === 'bottom' || cssSelector === 'end') {\n            cssSelector = 'body'\n            opts.block = 'end'\n        }\n        const el = this.$(cssSelector)\n        if (el) {\n            el.scrollIntoView(opts)\n            return true\n        }\n        return false\n    }\n\n    /** Show/hide a display card on the end of the visible HTML that will dynamically display the current status of the uibuilder client\n     * The card has the id `uib_status`.\n     * The display is updated by an event listener created in the class constructor.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showStatus(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowStatus\n        this.#isShowStatus = showHide\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_status',\n                ],\n            })\n            return showHide\n        }\n\n        const root = {\n            components: [\n                {\n                    type: 'div',\n                    id: 'uib_status',\n                    parent: parent,\n                    attributes: {\n                        title: 'Current status of the uibuilder client',\n                        class: 'text-smaller',\n                    },\n                    components: [\n                        {\n                            'type': 'table',\n                            'components': [\n                                {\n                                    'type': 'tbody',\n                                    'components': []\n                                }\n                            ]\n                        }\n                    ]\n                }\n            ]\n        }\n        const details = root.components[0].components[0].components[0].components\n\n        Object.values(this.#showStatus).forEach( entry => {\n            details.push({\n                'type': 'tr',\n                'attributes': {\n                    title: entry.description,\n                },\n                'components': [\n                    {\n                        'type': 'th',\n                        'slot': entry.label,\n                    },\n                    {\n                        'type': 'td',\n                        'attributes': {\n                            'data-varType': entry.var,\n                        },\n                        'slot': entry.var === 'version' ? Uib._meta.version : JSON.stringify(this[entry.var]),\n                    }\n                ],\n            })\n        })\n\n        _ui._uiReplace(root)\n\n        return showHide\n    }\n\n    /** Use the Mutation Observer browser API to watch for changes to a single element on the page.\n     * OMG! It is sooo hard to turn the data into something that successfully serialises so it can be sent back to Node-RED!\n     * NB: Each cssSelector creates a unique watcher. Sending the same selector overwrites the previous one.\n     * @param {string} cssSelector A CSS Selector that selects the element to watch for changes\n     * @param {boolean|\"toggle\"} [startStop] true=start watching the DOM, false=stop. Default='toggle'\n     * @param {boolean} [send] true=Send changes to Node-RED, false=Don't send. Default=true\n     * @param {boolean} [showLog] true=Output changes to log, false=stop. Default=true. Log level is 2 (Info)\n     * @returns {boolean} True if the watch is on, false otherwise\n     */\n    uiWatch(cssSelector, startStop = 'toggle', send = true, showLog = true) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.querySelector(cssSelector)\n        if (!targetNode) {\n            log('warn', 'uibuilder.module.js:uiWatch', `CSS Selector '${cssSelector}' not found.`)()\n            return false\n        }\n\n        if (startStop === 'toggle' || startStop === undefined || startStop === null) {\n            if (this.#uiObservers[cssSelector]) startStop = false\n            else startStop = true\n        }\n\n        // Need a ref to the Uib this\n        const that = this\n\n        if (startStop === true) {\n            // Create an observer instance\n            this.#uiObservers[cssSelector] = new MutationObserver( function( mutationList /* , observer */ ) {\n                const out = []\n\n                mutationList.forEach( mu => {\n                    // console.log({ mu })\n                    const oMu = {\n                        type: mu.type,\n                        oldValue: mu.oldValue !== null ? mu.oldValue : undefined,\n                    }\n\n                    if (mu.addedNodes.length > 0) {\n                        oMu.addedNodes = []\n                        mu.addedNodes.forEach( (an, i) => {\n                            oMu.addedNodes.push(_ui.nodeGet(mu.addedNodes[i]))\n                        })\n                    }\n\n                    if (mu.removedNodes.length > 0) {\n                        oMu.removedNodes = []\n                        mu.removedNodes.forEach( (an, i) => {\n                            oMu.removedNodes.push(_ui.nodeGet(mu.removedNodes[i]))\n                        })\n                    }\n\n                    if ( mu.type === 'attributes' ) {\n                        oMu.attributeName = mu.attributeName\n                        // @ts-ignore\n                        oMu.newValue = mu.target.attributes[mu.attributeName].value\n                    }\n\n                    out.push(oMu)\n                })\n\n                // Custom event\n                that._dispatchCustomEvent('uibuilder:domChange', out)\n                // Send a msg back to node-red\n                if (send === true) {\n                    that.send({\n                        _ui: {\n                            cssSelector: cssSelector,\n                            uiChanges: out\n                        },\n                        topic: that.topic || `DOM Changes for '${cssSelector}'`,\n                    })\n                }\n                // Log to info\n                if (showLog === true) {\n                    log('info', 'uibuilder.module.js:uiWatch', `DOM Changes for '${cssSelector}'`, { uiChanges: out }, { mutationList })()\n                }\n            } )\n\n            // Start observing the target node for configured mutations\n            this.#uiObservers[cssSelector].observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:uiWatch', `Started Watching DOM changes for '${cssSelector}'`)()\n        } else {\n            this.#uiObservers[cssSelector].disconnect()\n            delete this.#uiObservers[cssSelector]\n            log('trace', 'uibuilder.module.js:uiWatch', `Stopped Watching DOM changes for '${cssSelector}'`)()\n        }\n\n        return startStop\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- HTML cache and DOM watch --------- //\n\n    /** Clear the saved DOM from localStorage */\n    clearHtmlCache() {\n        this.removeStore('htmlCache')\n        log('trace', 'uibuilder.module.js:clearHtmlCache', 'HTML cache cleared')()\n    }\n\n    /** Restore the complete DOM (the whole web page) from browser localStorage if available */\n    restoreHtmlFromCache() {\n        // Is the html cached? If so, restore it\n        const htmlCache = this.getStore('htmlCache')\n        if (htmlCache) {\n            const targetNode = document.getElementsByTagName('html')[0]\n            // Restore the entire HTML\n            targetNode.innerHTML = htmlCache\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'Restored HTML from cache')()\n        } else {\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'No cache to restore')()\n        }\n    }\n\n    /** Save the current DOM state to browser localStorage.\n     * localStorage is persistent and so can be recovered even after a browser restart.\n     */\n    saveHtmlCache() {\n        // Save the updated entire HTML in localStorage\n        this.setStore('htmlCache', document.documentElement.innerHTML)\n    }\n\n    /** Use the Mutation Observer browser API to watch for and save changes to the HTML\n     * Once the observer is created, it will be reused.\n     * Sending true or undefined will turn on the observer, false turns it off.\n     * saveHtmlCache is called whenever anything changes in the dom. This allows\n     * users to call restoreHtmlFromCache() on page load if desired to completely reload\n     * to the last saved state.\n     * @param {boolean} startStop true=start watching the DOM, false=stop\n     */\n    watchDom(startStop) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.documentElement\n\n        // Need a ref to the Uib this\n        const that = this\n\n        // Create an observer instance\n        if (!this._htmlObserver) {\n            this._htmlObserver = new MutationObserver( function(/* mutationList, observer */) {\n                // We don't need to know the details - so kill off any outstanding mutation records\n                this.takeRecords()\n                // Save the updated entire HTML in localStorage\n                that.saveHtmlCache()\n            } )\n        }\n\n        if (startStop === true || startStop === undefined) {\n            // Start observing the target node for configured mutations\n            this._htmlObserver.observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:watchDom', 'Started Watching and saving DOM changes')()\n        } else {\n            this._htmlObserver.disconnect()\n            log('trace', 'uibuilder.module.js:watchDom', 'Stopped Watching and saving DOM changes')()\n        }\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- Message Handling (To/From Node-RED) -------- //\n\n    /** Handles original control msgs (not to be confused with \"new\" msg._uib controls)\n     * @param {*} receivedCtrlMsg The msg received on the socket.io control channel\n     */\n    _ctrlMsgFromServer(receivedCtrlMsg) {\n\n        // Make sure that msg is an object & not null\n        if (receivedCtrlMsg === null) {\n            receivedCtrlMsg = {}\n        } else if (typeof receivedCtrlMsg !== 'object') {\n            const msg = {}\n            msg['uibuilderCtrl:' + this._ioChannels.control] = receivedCtrlMsg\n            receivedCtrlMsg = msg\n        }\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedCtrlMsg)\n\n        this.set('ctrlMsg', receivedCtrlMsg)\n        this.set('msgsCtrlReceived', ++this.msgsCtrlReceived)\n\n        log('trace', 'Uib:ioSetup:_ctrlMsgFromServer', `Channel '${this._ioChannels.control}'. Received control msg #${this.msgsCtrlReceived}`, receivedCtrlMsg)()\n\n        /** Process control msg types */\n        switch (receivedCtrlMsg.uibuilderCtrl) {\n            // Node-RED is shutting down\n            case 'shutdown': {\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, '\u274C Received \"shutdown\" from server')()\n                this.set('serverShutdown', undefined)\n                break\n            }\n\n            /** We are connected to the server - 1st msg from server */\n            case 'client connect': {\n                log('trace', `Uib:ioSetup:${this._ioChannels.control}`, 'Received \"client connect\" from server')()\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, `\u2705 Server connected. Version: ${receivedCtrlMsg.version}\\nServer time: ${receivedCtrlMsg.serverTimestamp}, Sever time offset: ${this.serverTimeOffset} hours`)()\n\n                if ( !Uib._meta.version.startsWith(receivedCtrlMsg.version.split('-')[0]) ) {\n                    log('warn', `Uib:ioSetup:${this._ioChannels.control}`, `Server version (${receivedCtrlMsg.version}) not the same as the client version (${Uib._meta.version})`)()\n                }\n\n                if (this.autoSendReady === true) { // eslint-disable-line no-lonely-if\n                    log('trace', `Uib:ioSetup:${this._ioChannels.control}/client connect`, 'Auto-sending ready-for-content/replay msg to server')\n                    // @since 0.4.8c Add cacheControl property for use with node-red-contrib-infocache\n                    // @since 6.1.0 Don't bother, we use the \"client connect\" msg\n                    // this._send({\n                    //     'uibuilderCtrl': 'ready for content',\n                    //     'cacheControl': 'REPLAY',\n                    // }, this._ioChannels.control)\n                }\n\n                break\n            }\n\n            default: {\n                log('trace', `uibuilderfe:ioSetup:${this._ioChannels.control}`, `Received ${receivedCtrlMsg.uibuilderCtrl} from server`)\n                // Anything else to do for other control msgs?\n            }\n        } // ---- End of process control msg types ---- //\n    } // -- End of websocket receive CONTROL msg from Node-RED -- //\n\n    /** Do we want to process something? Check pageName, clientId, tabId. Defaults to yes.\n     * @param {*} obj Either a msg._ui or msg._uib object to check\n     * @returns {boolean} True if we should process the inbound _ui/_uib msg, false if not.\n     */\n    _forThis(obj) {\n        let r = true\n\n        // Is this msg for this pageName?\n        if (obj.pageName && obj.pageName !== this.pageName) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this page')()\n            r = false\n        }\n\n        // Is this msg for this clientId?\n        if (obj.clientId && obj.clientId !== this.clientId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this clientId')()\n            r = false\n        }\n\n        // Is this msg for this tabId?\n        if (obj.tabId && obj.tabId !== this.tabId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this tabId')()\n            r = false\n        }\n\n        return r\n    }\n\n    // Handle received messages - Process some msgs internally, emit specific events on document that make it easy for coders to use\n    _msgRcvdEvents(msg) {\n        // Message received\n        this._dispatchCustomEvent('uibuilder:stdMsgReceived', msg)\n\n        // Topic\n        if ( msg.topic ) this._dispatchCustomEvent(`uibuilder:msg:topic:${msg.topic}`, msg)\n\n        // Handle msg._uib special requests\n        if (msg._uib) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._uib)) return\n\n            /** Process a client reload request from Node-RED - as the page is reloaded, everything else is ignored\n             * Note that msg._ui.reload is also actioned via the _ui processing below */\n            if (msg._uib.reload === true) {\n                log('trace', 'Uib:_msgRcvdEvents:_uib:reload', 'reloading')()\n                location.reload()\n                return\n            }\n\n            // Process msg._uib.command messages - allows Node-RED to run uibuilder FE functions\n            if (msg._uib.command) {\n                this._uibCommand(msg)\n                return\n            }\n\n            // Better to request via msg._ui - these are for backwards compatibility\n            if ( msg._uib.componentRef === 'globalNotification' ) {\n                _ui.showDialog('notify', msg._uib.options, msg)\n            }\n            if ( msg._uib.componentRef === 'globalAlert' ) {\n                _ui.showDialog('alert', msg._uib.options, msg)\n            }\n        }\n\n        // Handle msg._ui requests\n        if ( msg._ui ) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._ui)) return\n\n            log('trace', 'Uib:_msgRcvdEvents:_ui', 'Calling _uiManager')()\n            this._dispatchCustomEvent('uibuilder:msg:_ui', msg)\n            _ui._uiManager(msg)\n        }\n    } // --- end of _msgRcvdEvents ---\n\n    /** Internal send fn. Send a standard or control msg back to Node-RED via Socket.IO\n     * NR will generally expect the msg to contain a payload topic\n     * @param {object} msgToSend The msg object to send.\n     * @param {string} [channel=uiBuilderClient] The Socket.IO channel to use, must be in self.ioChannels or it will be ignored\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    _send(msgToSend, channel, originator = '') {\n        if (channel === null || channel === undefined) channel = this._ioChannels.client\n\n        // Make sure msgToSend is an object\n        if (channel === this._ioChannels.client) {\n            msgToSend = makeMeAnObject(msgToSend, 'payload')\n        } else if (channel === this._ioChannels.control) {\n            msgToSend = makeMeAnObject(msgToSend, 'uibuilderCtrl')\n            if (!Object.prototype.hasOwnProperty.call(msgToSend, 'uibuilderCtrl')) {\n                msgToSend.uibuilderCtrl = 'manual send'\n            }\n            // help remember where this came from as ctrl msgs can come from server or client\n            msgToSend.from = 'client'\n        }\n\n        /** since 2020-01-02 Added _socketId which should be the same as the _socketId on the server */\n        msgToSend._socketId = this._socket.id\n\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n\n        // Add the originator metadata if required\n        if (originator === '' && this.originator !== '') originator = this.originator\n        if (originator !== '') Object.assign(msgToSend, { '_uib': { 'originator': originator } })\n\n        // If the msg does not have a topic - see if we want to add one\n        if ( !Object.prototype.hasOwnProperty.call(msgToSend, 'topic') ) {\n            // From the default (`uibuilder.set('topic', 'some topic')`)\n            if (this.topic !== undefined && this.topic !== '') msgToSend.topic = this.topic\n            else {\n                // Did the last inbound msg have a topic?\n                if ( Object.prototype.hasOwnProperty.call(this, 'msg') && Object.prototype.hasOwnProperty.call(this.msg, 'topic') ) {\n                    msgToSend.topic = this.msg.topic\n                }\n            }\n        }\n\n        // If a standard send & _ui property exists, make sure to add _ui.from = 'client'\n        if (msgToSend._ui) msgToSend._ui.from = 'client'\n\n        // Track how many messages have been sent & last msg sent\n        let numMsgs\n        if (channel === this._ioChannels.client) {\n            this.set('sentMsg', msgToSend)\n            numMsgs = this.set('msgsSent', ++this.msgsSent)\n        } else if (channel === this._ioChannels.control) {\n            this.set('sentCtrlMsg', msgToSend)\n            numMsgs = this.set('msgsSentCtrl', ++this.msgsSentCtrl)\n        }\n        log('trace', 'Uib:_send', ` Channel '${channel}'. Sending msg #${numMsgs}`, msgToSend)()\n\n        this._socket.emit(channel, msgToSend)\n    } // --- End of Send Msg Fn --- //\n\n    /** Callback handler for messages from Node-RED\n     * NOTE: `this` is the class here rather the `socket` as would be normal since we bind the correct `this` in the call.\n     *       Use this._socket if needing reference to the socket.\n     * @callback ioSetupFromServer Called from ioSetup/this._socket.on(this.#ioChannels.server, this.stdMsgFromServer.bind(this))\n     * @param {object} receivedMsg The msg object from Node-RED\n     * @this Uib\n     */\n    _stdMsgFromServer(receivedMsg) {\n\n        // Make sure that msg is an object & not null\n        receivedMsg = makeMeAnObject(receivedMsg, 'payload')\n\n        // Don't process if the inbound msg is not for us\n        if (receivedMsg._uib && !this._forThis(receivedMsg._uib)) return\n        if (receivedMsg._ui && !this._forThis(receivedMsg._ui)) return\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedMsg)\n\n        // Track how many messages have been received\n        this.set('msgsReceived', ++this.msgsReceived)\n\n        // Emit specific document events on msg receipt that make it easy for coders to use\n        this._msgRcvdEvents(receivedMsg)\n\n        if ( !('_ui' in receivedMsg && !('payload' in receivedMsg)) ) {\n            // Save the msg for further processing\n            this.set('msg', receivedMsg)\n        }\n\n        log('info', 'Uib:ioSetup:stdMsgFromServer', `Channel '${this._ioChannels.server}'. Received msg #${this.msgsReceived}.`, receivedMsg)()\n\n        // ! NOTE: Don't try to handle specialist messages here. See _msgRcvdEvents.\n    } // -- End of websocket receive DATA msg from Node-RED -- //\n\n    /** Process msg._uib.command - Remember to update #extCommands with new allowed commands\n     * @param {object} msg Msg from Node-RED containing a msg._uib object\n     */\n    _uibCommand(msg) {\n        if (!msg._uib || !msg._uib.command) {\n            log('error', 'uibuilder:_uibCommand', 'Invalid command message received', { msg })()\n            msg.payload = msg.error = 'Invalid command message received'\n            this.send(msg)\n            return\n        }\n        const cmd = msg._uib.command\n        // Disallowed command request outputs error and ignores the msg (NB: Case must match)\n        if (!this.#extCommands.includes(cmd.trim())) {\n            log('error', 'Uib:_uibCommand', `Command '${cmd} is not allowed to be called externally`)()\n            return\n        }\n        const prop = msg._uib.prop\n        const value = msg._uib.value\n        const quiet = msg._uib.quiet ?? false\n        let response, info\n\n        // Don't forget to update `#extCommands`, `docs/client-docs/control-from-node-red.md` & `functions.md`\n        switch (cmd) {\n            case 'elementIsVisible': {\n                response = this.elementIsVisible(prop)\n                // info = `Element \"${prop}\" ${response ? 'is visible' : 'is not visible'}`\n                break\n            }\n\n            case 'elementExists': {\n                response = this.elementExists(prop, false)\n                info = `Element \"${prop}\" ${response ? 'exists' : 'does not exist'}`\n                break\n            }\n\n            case 'get': {\n                response = this.get(prop)\n                break\n            }\n\n            case 'getManagedVarList': {\n                if (prop === 'full') response = this.getManagedVarList()\n                else response = Object.values(this.getManagedVarList())\n                break\n            }\n\n            case 'getWatchedVars': {\n                if (prop === 'full') response = this.getWatchedVars()\n                else response = Object.values(this.getWatchedVars())\n                break\n            }\n\n            case 'htmlSend': {\n                response = this.htmlSend('', false)\n                break\n            }\n\n            case 'include': {\n                // include is async\n                response = _ui.include(prop, value)\n                break\n            }\n\n            case 'navigate': {\n                let newUrl\n                if (prop) newUrl = prop\n                else if (value) newUrl = value\n                response = this.navigate(newUrl)\n                break\n            }\n\n            case 'scrollTo': {\n                response = this.scrollTo(prop, value)\n                break\n            }\n\n            case 'set': {\n                let store = false\n                let autoload = false\n                if (msg._uib.options && msg._uib.options.store) {\n                    if (msg._uib.options.store === true) store = true\n                    if (msg._uib.options.autoload === true) autoload = true\n                }\n                response = this.set(prop, value, store, autoload)\n                break\n            }\n\n            case 'showMsg': {\n                response = this.showMsg(value, prop)\n                break\n            }\n\n            case 'showStatus': {\n                response = this.showStatus(value, prop)\n                break\n            }\n\n            case 'uiGet': {\n                response = _ui.uiGet(prop, value)\n                break\n            }\n\n            case 'uiWatch': {\n                response = this.uiWatch(prop)\n                break\n            }\n\n            case 'watchUrlHash': {\n                response = this.watchUrlHash(prop)\n                break\n            }\n\n            default: {\n                log('warning', 'Uib:_uibCommand', `Command '${cmd}' not yet implemented`)()\n                break\n            }\n        }\n\n        if (quiet !== true) {\n            if (response === undefined) {\n                response = `'${prop}' is undefined`\n            }\n            if (Object(response).constructor === Promise) {\n                // response = `'${cmd} ${prop}' submitted. Cmd is async, no response available`\n                response\n                    .then( (/** @type {any} */ data) => {\n                        msg.payload = msg._uib.response = data\n                        msg.info = msg._uib.info = info\n                        if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                        this.send(msg)\n                        return true\n                    })\n                    .catch( err => {\n                        log(0, 'Uib:_uibCommand', 'Error: ', err)()\n                    })\n            } else {\n                msg.payload = msg._uib.response = response\n                msg.info = msg._uib.info = info\n                if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                this.send(msg)\n            }\n        }\n    } // --- end of _uibCommand ---\n\n    /** Send log text to uibuilder's beacon endpoint (works even if socket.io not connected)\n     * @param {string} txtToSend Text string to send\n     * @param {string|undefined} logLevel Log level to use. If not supplied, will default to debug\n     */\n    beaconLog(txtToSend, logLevel) {\n        if (!logLevel) logLevel = 'debug'\n        navigator.sendBeacon('./_clientLog', `${logLevel}::${txtToSend}`)\n    }\n\n    /** Easily send the entire DOM/HTML msg back to Node-RED\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     * @param {boolean} [send] If true (default) directly send response to Node-RED. Is false when calling from Node-RED as a command.\n     * @returns {string} The HTML as a string\n     */\n    htmlSend(originator = '', send = true) {\n        const out = `<!doctype html>\\n${document.documentElement.outerHTML}`\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            payload: out,\n            length: out.length,\n            topic: this.topic,\n        }\n\n        log('trace', 'Uib:htmlSend', 'Sending full HTML to Node-RED', msg)()\n\n        if (send === true) this._send(msg, this._ioChannels.client, originator)\n        return out\n    }\n\n    /** Send log info back to Node-RED over uibuilder's websocket control output (Port #2)\n     * @param {...*} arguments All arguments passed to the function are added to the msg.payload\n     */\n    logToServer() {\n        this.sendCtrl({\n            uibuilderCtrl: 'client log message',\n            payload: arguments,\n            // \"version\":\"6.1.0-iife.min\",\n            _socketId: this._socket.id,\n            // \"ip\":\"::1\",\n            clientId: this.clientId,\n            tabId: this.tabId,\n            // \"url\":\"esp-test\",\n            pageName: this.pageName,\n            connections: this.connectedNum,\n            lastNavType: this.lastNavType,\n        })\n    }\n\n    /** Easily send a msg back to Node-RED on a DOM event\n     * @example In plain HTML/JavaScript\n     *    `<button id=\"button1\" name=\"button 1\" data-fred=\"jim\"></button>`\n     *    $('#button1').onclick = (evt) => {\n     *      uibuilder.eventSend(evt)\n     *    }\n     * @example\n     * In VueJS: `<b-button id=\"myButton1\" @click=\"doEvent\" data-something=\"hello\"></b-button>`\n     * In VueJS methods: `doEvent: uibuilder.eventSend,`\n     *\n     * All `data-` attributes will be passed back to Node-RED,\n     *    use them instead of arguments in the click function.\n     *    All target._ui custom properties are also passed back to Node-RED.\n     *\n     * @param {MouseEvent|any} domevent DOM Event object\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    eventSend(domevent, originator = '') { // eslint-disable-line sonarjs/cognitive-complexity\n        // @ts-ignore Handle case where vue messes up `this`\n        if ( this.$attrs ) {\n            log('error', 'Uib:eventSend', '`this` has been usurped by VueJS. Make sure that you wrap the call in a function: `doEvent: function (event) { uibuilder.eventSend(event) },`' )()\n            return\n        }\n        if (!domevent && !event) {\n            log('warn', 'Uib:eventSend', 'Neither the domevent nor the hidden event properties are set. You probably called this function directly rather than applying to an on click event.' )()\n            return\n        }\n        // Handle no argument, e.g. <button onClick=\"uibuilder.eventSend()\"> - event is a hidden variable when fn used in addEventListener\n        if (!domevent || !domevent.constructor) domevent = event\n\n        // The argument must be a DOM event\n        if ((!domevent.constructor.name.endsWith('Event')) || (!domevent.currentTarget)) {\n            log('warn', 'Uib:eventSend', `ARGUMENT NOT A DOM EVENT - use data attributes not function arguments to pass data. Arg Type: ${domevent.constructor.name}`, domevent)()\n            return\n        }\n\n        // Prevent default event action\n        domevent.preventDefault()\n\n        // The target element\n        const target = domevent.currentTarget\n\n        // Get target properties - only shows custom props not element default ones\n        const props = {}\n        Object.keys(target).forEach( key => {\n            if (key.startsWith('_')) return // Exclude private\n            props[key] = target[key]\n        })\n\n        // Attempt to get target attributs - can fail for certain target types\n        const ignoreAttribs = ['class', 'id', 'name']\n        let attribs\n        try {\n            attribs = Object.assign({},\n                ...Array.from(target.attributes,\n                    ( { name, value } ) => {\n                        if ( !ignoreAttribs.includes(name) ) {\n                            return ({ [name]: value })\n                        }\n                        return undefined\n                    }\n                )\n            )\n        } catch (e) {}\n\n        // If target embedded in a form, include the form data\n        let form\n        const frmVals = []\n        if ( target.form ) {\n            form = {}\n            form.valid = target.form.checkValidity()\n            Object.values(target.form).forEach( (frmEl, i) => {\n                const id = frmEl.id !== '' ? frmEl.id : (frmEl.name !== '' ? frmEl.name : `${i}-${frmEl.type}`)\n\n                // We must have both an element id (we may have forced one above) AND\n                // the element type MUST be not undefined - to allow for the extra properties added by frameworks such as Svelte\n                if (id !== '' && frmEl.type) {\n                    // Stupid HTML doesn't use value attrib for checkboxes. So override if value is set to default\n                    if ('checked' in frmEl && frmEl.value === 'on') frmEl.value = frmEl.checked.toString()\n\n                    frmVals.push( { key: id, val: frmEl.value } ) // simplified for addition to msg.payload\n\n                    form[id] = {\n                        'id': frmEl.id,\n                        'name': frmEl.name,\n                        'value': frmEl.value,\n                        'valid': frmEl.checkValidity(),\n                        'type': frmEl.type,\n                    }\n\n                    if (form[id].valid === false) {\n                        const v = frmEl.validity\n                        form[id].validity = {\n                            badInput: v.badInput === true ? v.badInput : undefined,\n                            customError: v.customError === true ? v.customError : undefined,\n                            patternMismatch: v.patternMismatch === true ? v.patternMismatch : undefined,\n                            rangeOverflow: v.rangeOverflow === true ? v.rangeOverflow : undefined,\n                            rangeUnderflow: v.rangeUnderflow === true ? v.rangeUnderflow : undefined,\n                            stepMismatch: v.stepMismatch === true ? v.stepMismatch : undefined,\n                            tooLong: v.tooLong === true ? v.tooLong : undefined,\n                            tooShort: v.tooShort === true ? v.tooShort : undefined,\n                            typeMismatch: v.typeMismatch === true ? v.typeMismatch : undefined,\n                            valueMissing: v.valueMissing === true ? v.valueMissing : undefined,\n                        }\n                    }\n\n                    if (frmEl.dataset) form[id].data = frmEl.dataset\n                }\n            })\n        }\n\n        // Check for CSS Classes\n        let classes\n        try {\n            classes = Array.from(target.classList)\n        } catch (e) {}\n\n        // Each `data-xxxx` attribute is added as a property\n        let payload = { ...target.dataset }\n\n        // Handle Notification events\n        let nprops\n        if ( Object.prototype.toString.call(target) === '[object Notification]') {\n            // Fixed payload for convenience\n            payload = `notification-${target.userAction}`\n            // Capture the notification properties\n            nprops = {\n                // userAction: target.userAction, // uib custom prop: click, close or error\n                actions: target.actions,\n                badge: target.badge,\n                body: target.body,\n                data: target.data,\n                dir: target.dir,\n                icon: target.icon,\n                image: target.image,\n                lang: target.lang,\n                renotify: target.renotify,\n                requireInteraction: target.requireInteraction,\n                silent: target.silent,\n                tag: target.tag,\n                timestamp: target.timestamp,\n                title: target.title,\n                vibrate: target.vibrate,\n            }\n        }\n        // console.log(Object.prototype.toString.call(target))\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            // - this may be an empty Object if no data attributes defined\n            payload: payload,\n\n            _ui: {\n                type: 'eventSend',\n                id: target.id !== '' ? target.id : undefined,\n                name: target.name !== '' ? target.name : undefined,\n                slotText: target.textContent ? target.textContent.substring(0, 255) : undefined,\n\n                form: form,\n                props: props,\n                attribs: attribs,\n                classes: classes,\n\n                notification: nprops,\n\n                event: domevent.type,\n                altKey: domevent.altKey,\n                ctrlKey: domevent.ctrlKey,\n                shiftKey: domevent.shiftKey,\n                metaKey: domevent.metaKey,\n\n                pointerType: domevent.pointerType,\n                nodeName: target.nodeName,\n\n                clientId: this.clientId,\n                pageName: this.pageName,\n                tabId: this.tabId,\n            }\n        }\n\n        if (frmVals.length > 0) {\n            frmVals.forEach( entry => {\n                msg.payload[entry.key] = entry.val\n            })\n        }\n\n        if (domevent.type === 'change') {\n            // Checkboxes don't have a value!!\n            msg._ui.newValue = msg.payload.value = 'checked' in target ? target.checked : domevent.target.value\n        }\n\n        log('trace', 'Uib:eventSend', 'Sending msg to Node-RED', msg)()\n        if (target.dataset && target.dataset.length === 0) log('warn', 'Uib:eventSend', 'No payload in msg. data-* attributes should be used.')()\n\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Send a standard message to NR\n     * @example uibuilder.send({payload:'Hello'})\n     * @param {object} msg Message to send\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    send(msg, originator = '') {\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Send a control msg to NR\n     * @param {object} msg Message to send\n     */\n    sendCtrl(msg) {\n        this._send(msg, this._ioChannels.control)\n    }\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Socket.IO -------- //\n\n    /** Return the Socket.IO namespace\n     * The cookie method is the most reliable but this falls back to trying to work it\n     * out from the URL if cookies not available. That won't work if page is in a sub-folder.\n     * since 2017-10-21 Improve method to cope with more complex paths - thanks to Steve Rickus @shrickus\n     * since 2017-11-10 v1.0.1 Check cookie first then url. cookie works even if the path is more complex (e.g. sub-folder)\n     * since 2020-01-25 Removed httpRoot from namespace to prevent proxy induced errors\n     * @returns {string} Socket.IO namespace\n     */\n    _getIOnamespace() {\n\n        let ioNamespace\n\n        /** Try getting the namespace cookie. */\n        ioNamespace = this.cookies['uibuilder-namespace']\n\n        // if it wasn't available, try using the current url path\n        if (ioNamespace === undefined || ioNamespace === '') {\n            // split url path & eliminate any blank elements, and trailing or double slashes\n            const u = window.location.pathname.split('/')\n                .filter(function (t) { return t.trim() !== '' })\n\n            /** since v2.0.5 Extra check for 0 length, Issue #73. since 2017-11-06 If the last element of the path is an .html file name, remove it */\n            if (u.length > 0 && (u[u.length - 1].endsWith('.html'))) u.pop()\n\n            // Get the last part of the url path, this MUST match the namespace in uibuilder\n            ioNamespace = u.pop()\n\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via url path: ${ioNamespace}`)()\n        } else {\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via cookie: ${ioNamespace}`)()\n        }\n\n        this.url = ioNamespace\n        // Namespace HAS to start with a /\n        ioNamespace = '/' + ioNamespace\n\n        log('trace', 'uibuilder.module.js:getIOnamespace', `Final Socket.IO namespace: ${ioNamespace}`)()\n\n        return ioNamespace\n    } // --- End of set IO namespace --- //\n\n    /** Function used to check whether Socket.IO is connected to the server, reconnect if not (recursive)\n     * @param {number} [delay] Initial delay before checking (ms). Default=2000ms\n     * @param {number} [factor] Multiplication factor for subsequent checks (delay*factor). Default=1.5\n     * @param {number} [depth] Recursion depth\n     * @returns {boolean|undefined} Whether or not Socket.IO is connected to uibuilder in Node-RED\n     */\n    _checkConnect(delay, factor, depth = 1) {\n        if ( navigator.onLine === false ) return // Don't bother if we know we are offline\n\n        if (!delay) delay = this.retryMs\n        if (!factor) factor = this.retryFactor\n\n        log('trace', 'Uib:checkConnect', `Checking connection. Connected: ${this._socket.connected}. Timer: ${this.#timerid}. Depth: ${depth}. Delay: ${delay}. Factor: ${factor}`, this._socket)()\n\n        // If we are connected ...\n        if (this._socket.connected === true) {\n            // Clear the setTimeout\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this.set('ioConnected', true)\n            this.set('socketError', null)\n            return true\n        }\n\n        // ... we aren't connected so:\n        this.set('ioConnected', false)\n\n        // we only want one running at a time\n        if (this.#timerid) window.clearTimeout(this.#timerid)\n\n        // Create the new timer\n        this.#timerid = window.setTimeout(() => {\n            log('warn', 'Uib:checkConnect:setTimeout', `Socket.IO reconnection attempt. Current delay: ${delay}. Depth: ${depth}`)()\n\n            // this is necessary sometimes when the socket fails to connect on startup\n            this._socket.close()\n\n            // Try to reconnect\n            this._socket.connect()\n\n            // don't need to check whether we have connected as the timer will have been cleared if we have\n            this.#timerid = null\n\n            // @ts-ignore Create new timer for next time round with extended delay\n            this._checkConnect(delay * factor, factor, depth++)\n        }, delay)\n\n        return false\n    } // --- End of checkConnect Fn--- //\n\n    // See message handling section for msg receipt handlers\n\n    /** Called by _ioSetup when Socket.IO connects to Node-RED */\n    _onConnect() {\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n        log('info', 'Uib:ioSetup', `\u2705 SOCKET CONNECTED. Connection count: ${this.connectedNum}, Is a Recovery?: ${this._socket.recovered}. \\nNamespace: ${this.ioNamespace}`)()\n        this._dispatchCustomEvent('uibuilder:socket:connected', { 'numConnections': this.connectedNum, 'isRecovery': this._socket.recovered })\n\n        this._checkConnect() // resets any reconnection timers & sets connected flag\n    }\n\n    /** Called by _ioSetup when Socket.IO disconnects from Node-RED\n     * @param {string} reason Disconnection title\n     */\n    _onDisconnect(reason) {\n        // reason === 'io server disconnect' - redeploy of Node instance\n        // reason === 'transport close' - Node-RED terminating\n        // reason === 'ping timeout' - didn't receive a pong response?\n        log('info', 'Uib:ioSetup:socket-disconnect', `\u26D4 Socket Disconnected. Reason: ${reason}`)()\n\n        this._dispatchCustomEvent('uibuilder:socket:disconnected', reason)\n\n        /** A workaround for SIO's failure to reconnect after a disconnection */\n        this._checkConnect()\n    }\n\n    /** Setup Socket.io\n     * since v2.0.0-beta2 Moved to a function and called by the user (uibuilder.start()) so that namespace & path can be passed manually if needed\n     * @returns {boolean} Attaches socket.io manager to self._socket and updates self.ioNamespace & self.ioPath as needed\n     */\n    _ioSetup() {\n\n        // Just a notification, actual load is done outside the class (see start of file)\n        if (io === undefined) {\n            log('error', 'Uib:ioSetup', 'Socket.IO client not loaded, Node-RED comms will not work')()\n            return false\n        }\n\n        // If socket is already set up, close it and remove all of the listeners\n        if (this._socket) {\n            log('trace', 'Uib:ioSetup', 'Removing listeners in preparation for redoing Socket.IO connections')()\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this._socket.close()\n            this._socket.offAny()\n            this._socket = undefined\n            this.set('ioConnected', false)\n        }\n\n        // Update the URL path to make sure we have the right one\n        this.socketOptions.path = this.ioPath\n\n        // NOTE: this._socket.auth is now set by callback and so automatically updated for each client (re)connection. No need to set here\n\n        // Create the socket - make sure client uses Socket.IO version from the uibuilder module (using path)\n        log('trace', 'Uib:ioSetup', `About to create IO object. Transports: [${this.socketOptions.transports.join(', ')}]`)()\n        this._socket = io(this.ioNamespace, this.socketOptions)\n\n        /** When the socket is connected - set ioConnected flag and reset connect timer  */\n        this._socket.on('connect', this._onConnect.bind(this))\n\n        // RECEIVE a STANDARD, non-control msg from Node-RED server\n        this._socket.on(this._ioChannels.server, this._stdMsgFromServer.bind(this))\n\n        // RECEIVE a CONTROL msg from Node-RED server - see also sendCtrl()\n        this._socket.on(this._ioChannels.control, this._ctrlMsgFromServer.bind(this))\n\n        // When the socket is disconnected ..............\n        this._socket.on('disconnect', this._onDisconnect.bind(this))\n\n        // Socket.io connection error - probably the wrong ioPath - or client is offline\n        this._socket.on('connect_error', (err) => {\n            if ( navigator.onLine === false ) return // Don't bother with an error if we know we are offline\n            log('error', 'Uib:ioSetup:connect_error', `\u274C Socket.IO Connect Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket connect error processing ---\n\n        // Socket.io error - from the server (socket.use middleware triggered an error response)\n        this._socket.on('error', (err) => {\n            log('error', 'Uib:ioSetup:error', `\u274C Socket.IO Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket error processing ---\n\n        // Ensure we are connected, retry if not\n        this._checkConnect()\n\n        return true\n\n        /* We really don't need these, just for interest\n            self._socket.io.on('packet', function onPacket(data){\n                // we get one of these for each REAL msg (not ping/pong)\n                console.debug('PACKET', data)\n            })\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n                //console.dir(self._socket)\n            }) // --- End of socket pong processing ---\n            self._socket.io.on('packet', function(data){\n                // We get one of these for actual messages, not ping/pong\n                console.debug('PACKET', data)\n            })\n            self._socket.on('connect_timeout', function(timeout) {\n                console.debug('SOCKET CONNECT TIMEOUT - Namespace: ' + ioNamespace + ', Timeout: ' + timeout)\n            }) // --- End of socket connect timeout processing ---\n            self._socket.on('reconnect', function(attemptNum) {\n                console.debug('SOCKET RECONNECTED - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect processing ---\n            self._socket.on('reconnect_attempt', function(attemptNum) {\n                console.debug('SOCKET RECONNECT ATTEMPT - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect_attempt processing ---\n            self._socket.on('reconnecting', function(attemptNum) {\n                console.debug('SOCKET RECONNECTING - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnecting processing ---\n            self._socket.on('reconnect_error', function(err) {\n                console.debug('SOCKET RECONNECT ERROR - Namespace: ' + ioNamespace + ', Reason: ' + err.message)\n                //console.dir(err)\n            }) // --- End of socket reconnect_error processing ---\n            self._socket.on('reconnect_failed', function() {\n                console.debug('SOCKET RECONNECT FAILED - Namespace: ' + ioNamespace)\n            }) // --- End of socket reconnect_failed processing ---\n            self._socket.on('ping', function() {\n                console.debug('SOCKET PING')\n            }) // --- End of socket ping processing ---\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n            }) // --- End of socket pong processing ---\n            */\n    } // ---- End of ioSetup ---- //\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Class construction & startup method -------- //\n\n    constructor() {\n        log('trace', 'Uib:constructor', 'Starting')()\n\n        // Track whether the client is online or offline\n        window.addEventListener('offline', (e) => {\n            this.set('online', false)\n            this.set('ioConnected', false)\n            log('warn', 'Browser', 'DISCONNECTED from network')()\n        })\n        window.addEventListener('online', (e) => {\n            this.set('online', true)\n            log('warn', 'Browser', 'Reconnected to network')()\n            this._checkConnect()\n        })\n\n        document.cookie.split(';').forEach((c) => {\n            const splitC = c.split('=')\n            this.cookies[splitC[0].trim()] = splitC[1]\n        })\n\n        /** Client ID set by uibuilder - lasts until browser profile is closed, applies to all tabs */\n        this.set('clientId', this.cookies['uibuilder-client-id'])\n        log('trace', 'Uib:constructor', 'Client ID: ', this.clientId)()\n\n        /** Tab ID - lasts while the tab is open (even if reloaded)\n         * WARNING: Duplicating a tab retains the same tabId\n         */\n        this.set('tabId', window.sessionStorage.getItem('tabId'))\n        if (!this.tabId) {\n            this.set('tabId', `t${Math.floor(Math.random() * 1000000)}`)\n            window.sessionStorage.setItem('tabId', this.tabId)\n        }\n\n        // document.addEventListener('pagehide', (event) => {\n        //     // console.log(`pagehide. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pagehide. From Cache?: ${event.persisted}`)\n        // })\n        // document.addEventListener('pageshow', (event) => {\n        //     // console.log(`pageshow. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pageshow. From Cache?: ${event.persisted}`)\n        // })\n        document.addEventListener('load', () => {\n            this.set('isVisible', true)\n        })\n        document.addEventListener('visibilitychange', () => {\n            // hidden=unload, minimise. visible=un-minimise (not fired on load)\n            this.set('isVisible', document.visibilityState === 'visible')\n            this.sendCtrl({ uibuilderCtrl: 'visibility', isVisible: this.isVisible })\n            // navigator.userActivation is experimental Chromium only\n            // console.log('visibilitychange', ':', `Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n            // navigator.sendBeacon('./_clientLog', `${(new Date()).toISOString()} Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n        })\n\n        // Set a listener to update showStatus table if it is active\n        document.addEventListener('uibuilder:propertyChanged', (event) => {\n            if (!this.#isShowStatus) return\n\n            // @ts-ignore\n            if (event.detail.prop in this.#showStatus) {\n                // @ts-ignore\n                document.querySelector(`td[data-vartype=\"${event.detail.prop}\"]`).innerText = JSON.stringify(event.detail.value)\n            }\n        })\n\n        this.set('ioNamespace', this._getIOnamespace())\n\n        //#region - Try to make sure client uses Socket.IO client version from the uibuilder module (using cookie or path) @since v2.0.0 2019-02-24 allows for httpNodeRoot\n\n        /** httpNodeRoot (to set path) */\n        if ('uibuilder-webRoot' in this.cookies) {\n            this.set('httpNodeRoot', this.cookies['uibuilder-webRoot'])\n            log('trace', 'Uib:constructor', `httpNodeRoot set by cookie to \"${this.httpNodeRoot}\"`)()\n        } else {\n            // split current url path, eliminate any blank elements and trailing or double slashes\n            const fullPath = window.location.pathname.split('/').filter(function (t) { return t.trim() !== '' })\n            /** handle url includes file name - @since v2.0.5 Extra check for 0 length, Issue #73. */\n            if (fullPath.length > 0 && fullPath[fullPath.length - 1].endsWith('.html')) fullPath.pop()\n            fullPath.pop() // gives the last path section of the url\n            this.set('httpNodeRoot', `/${fullPath.join('/')}`)\n            log('trace', '[Uib:constructor]', `httpNodeRoot set by URL parsing to \"${this.httpNodeRoot}\". NOTE: This may fail for pages in sub-folders.`)()\n        }\n        this.set('ioPath', urlJoin(this.httpNodeRoot, Uib._meta.displayName, 'vendor', 'socket.io'))\n        log('trace', 'Uib:constructor', `ioPath: \"${this.ioPath}\"`)()\n\n        //#endregion\n\n        // Work out pageName\n        this.set('pageName', window.location.pathname.replace(`${this.ioNamespace}/`, ''))\n        if ( this.pageName.endsWith('/') ) this.set('pageName', `${this.pageName}index.html`)\n        if ( this.pageName === '' ) this.set('pageName', 'index.html')\n\n        // Attempt to restore autoload variables\n        try {\n            const autoloadVars = this.getStore('_uibAutoloadVars')\n            if (Object.keys(autoloadVars).length > 0) {\n                Object.keys(autoloadVars).forEach( (id) => {\n                    this.set(id, this.getStore(id))\n                })\n            }\n        } catch (e) {}\n\n        this._dispatchCustomEvent('uibuilder:constructorComplete')\n\n        log('trace', 'Uib:constructor', 'Ending')()\n    }\n\n    /** Start up Socket.IO comms and listeners\n     * This has to be done separately because if running from a web page in a sub-folder of src/dist, uibuilder cannot\n     * necessarily work out the correct ioPath to use.\n     * Also, if cookies aren't permitted in the browser, both ioPath and ioNamespace may need to be specified.\n     * @param {object} [options] The start options object.\n     * @returns {void}\n     */\n    start(options) {\n        log('trace', 'Uib:start', 'Starting')()\n\n        // Cancel the msg event handler if already present\n        if ( this.#MsgHandler ) this.cancelChange('msg', this.#MsgHandler)\n\n        if (this.started === true) {\n            log('info', 'Uib:start', 'Start function already called. Resetting Socket.IO and msg handler.')()\n        }\n\n        log('log', 'Uib:start', 'Cookies: ', this.cookies, `\\nClient ID: ${this.clientId}`)()\n        log('trace', 'Uib:start', 'ioNamespace: ', this.ioNamespace, `\\nioPath: ${this.ioPath}`)()\n\n        // Handle options\n        if (options) {\n            if (options.ioNamespace !== undefined && options.ioNamespace !== null && options.ioNamespace !== '') this.set('ioNamespace', options.ioNamespace)\n            if (options.ioPath !== undefined && options.ioPath !== null && options.ioPath !== '') this.set('ioPath', options.ioPath)\n            // See below for handling of options.loadStylesheet\n        }\n\n        // Do we need to load styles?\n        if ( document.styleSheets.length >= 1 || (document.styleSheets.length === 1 && document.styleSheets[0].cssRules.length === 0) ) {\n            log('info', 'Uib:start', 'Styles already loaded so not loading uibuilder default styles.')()\n        } else {\n            if (options && options.loadStylesheet === false) log('info', 'Uib:start', 'No styles loaded & options.loadStylesheet === false.')()\n            else {\n                log('info', 'Uib:start', 'No styles loaded, loading uibuilder default styles.')()\n                this.loadStyleSrc(`${this.httpNodeRoot}/uibuilder/uib-brand.min.css`)\n            }\n        }\n\n        /** Handle specialist messages like reload and _ui -> Moved to _msgRcvdEvents */\n\n        // Track last browser navigation type: navigate, reload, back_forward, prerender\n        const [entry] = performance.getEntriesByType('navigation')\n        // @ts-ignore\n        this.set('lastNavType', entry.type)\n\n        // Start up (or restart) Socket.IO connections and listeners. Returns false if io not found\n        this.set('started', this._ioSetup())\n\n        if ( this.started === true ) {\n            log('trace', 'Uib:start', 'Start completed. Socket.IO client library loaded.')()\n        } else {\n            log('error', 'Uib:start', 'Start completed. ERROR: Socket.IO client library NOT LOADED.')()\n        }\n\n        // Watch for URL hash changes in case using a front-end router. Updates watched var `urlHash` and socket.io `auth.urlHash`\n        this._watchHashChanges()\n\n        // Check if Vue is present (used for dynamic UI processing)\n        if (window['Vue']) {\n            this.set('isVue', true)\n            try {\n                this.set('vueVersion', window['Vue'].version)\n            } catch (e) { }\n            log('trace', 'Uib:start', `VueJS is loaded. Version: ${this.vueVersion}`)()\n        } else {\n            log('trace', 'Uib:start', 'VueJS is not loaded.')()\n        }\n\n        // Check if DOMPurify library is loaded\n        if (window['DOMPurify']) {\n            this.set('purify', true)\n            log('trace', 'Uib:start', 'DOMPurify is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'DOMPurify is not loaded.')()\n        }\n        // Check if Markdown-IT library is loaded\n        if (window['markdownit']) {\n            this.set('markdown', true)\n            log('trace', 'Uib:start', 'Markdown-IT is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'Markdown-IT is not loaded.')()\n        }\n\n        // if (window['DOMPurify']) {\n        //     this.set('purify', true)\n        //     log('trace', 'Uib:start', 'DOMPurify is loaded.')\n        // } else {\n        //     log('trace', 'Uib:start', 'DOMPurify is not loaded.')\n        // }\n\n        // Set up msg listener for the optional showMsg\n        this.onChange('msg', (msg) => {\n            if (this.#isShowMsg === true) {\n                const eMsg = document.getElementById('uib_last_msg')\n                if (eMsg) eMsg.innerHTML = this.syntaxHighlight(msg)\n            }\n        })\n\n        this._dispatchCustomEvent('uibuilder:startComplete')\n    }\n\n    //#endregion -------- ------------ -------- //\n} // ==== End of Class Uib ====\n\n//#region --- Wrap up - get things started ---\n\n// Create an instance (we will only ever want one)\nconst uibuilder = new Uib()\n\n// Assign reference to the instance to the global `window` object\n// Only useful if loading via <script> tag - prefer loading via `import uibuilder from ...`\nif (!window['uibuilder']) {\n    window['uibuilder'] = uibuilder\n} else {\n    log('error', 'uibuilder.module.js', '`uibuilder` already assigned to window. Have you tried to load it more than once?')\n}\nif (!window['uib']) {\n    window['uib'] = uibuilder\n} else {\n    log('warn', 'uibuilder.module.js', '`uib` shortcut already assigned to window.')\n}\n\n// Assign `$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$`.\nif (!window['$']) {\n    /** @type {HTMLElement} */\n    window['$'] = window['uibuilder'].$ // document.querySelector.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` or `uib.$` instead.')\n}\n// Assign `$$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$$']) {\n    /** @type {HTMLElement} */\n    window['$$'] = window['uibuilder'].$$ // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` or `uib.$$` instead.')\n}\n\n// Assign `$ui` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$ui']) {\n    /** @type {HTMLElement} */\n    window['$ui'] = window['uibuilder'].$ui // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$ui`, it is already in use. Use `uibuilder.$ui` or `uib.$ui` instead.')\n}\n\n// Can import as `import uibuilder from ...` OR `import {uibuilder} from ...`\nexport { uibuilder }\nexport default uibuilder\n\n// Attempt to run start fn\nuibuilder.start()\n\n// Add the class as a new Custom Element to the window object\ncustomElements.define('uib-var', UibVar)\n\n//#endregion --- Wrap up ---\n\n// EOF\n", "/** A zero dependency web component that will display a managed uibuilder variable.\n *\n * Version: 0.0.1 2023-10-07\n *\n * ToDo:\n * -\n */\n/*\n  Copyright (c) 2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n// const template = document.createElement('template')\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<link type=\"text/css\" rel=\"stylesheet\" href=\"\"../uibuilder/uib-brand.min.css\"\" media=\"all\"><span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`\n// {/* <style>@import url(\"../uibuilder/uib-brand.min.css\");</style><span></span> */}\n// `\n\nexport default class UibVar extends HTMLElement {\n    //#region --- Class Properties ---\n    /** @type {string} Name of the uibuilder mangaged variable to use */\n    variable\n    /** Current value of the watched variable */\n    value\n    /** Whether to output if the variable is undefined */\n    undefined = false\n    /** Whether to send update value to Node-RED on change */\n    report = false\n    /** What is the value type */\n    type = 'plain'\n    /** what are the available types? */\n    types = ['plain', 'html', 'markdown', 'object']\n\n    /** Mini jQuery-like shadow dom selector (see constructor) */\n    $\n    \n    /** Holds a count of how many instances of this component are on the page */\n    static _iCount = 0\n    /** @type {Array<string>} List of all of the html attribs (props) listened to */\n    static props = ['name', 'id', 'variable', 'undefined', 'report', 'type']\n    //#endregion --- Class Properties ---\n\n    constructor() {\n        super()\n        this.shadow = this.attachShadow({ mode: 'open', delegatesFocus: true })\n            // .append(template.content.cloneNode(true))\n\n        this.$ = this.shadowRoot.querySelector.bind(this.shadowRoot)\n\n        // Apply external styles to the shadow dom\n        this.css = document.createElement(\"link\")\n        this.css.setAttribute(\"type\", \"text/css\")\n        this.css.setAttribute(\"rel\", \"stylesheet\")\n        this.css.setAttribute(\"href\", \"../uibuilder/uib-brand.min.css\")\n\n        this.dispatchEvent(new Event(`uib-var:construction`, { bubbles: true, composed: true }))\n    }\n\n    // Makes HTML attribute change watched\n    static get observedAttributes() {\n        return UibVar.props\n    }\n\n    /** NOTE: On initial startup, this is called for each watched attrib set in HTML - BEFORE connectedCallback is called  */\n    attributeChangedCallback(attrib, oldVal, newVal) {\n        if ( oldVal === newVal ) return\n\n        switch (attrib) {\n            case 'variable': {\n                if (newVal === '') throw new Error('[uib-var] Attribute \"variable\" MUST be set to a UIBUILDER managed variable name')\n                this.variable = newVal\n                this.doWatch()\n                break\n            }\n            case 'undefined': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.undefined = true\n                else this.undefined = false\n                break\n            }\n            case 'report': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.report = true\n                else this.report = false\n                break\n            }\n            case 'type': {\n                if (newVal === '' || !this.types.includes(newVal.toLowerCase())) this.type = 'plain'\n                else this.type = newVal\n                break\n            }\n\n            default: {\n                this[attrib] = newVal\n                break\n            }\n        }\n    } // --- end of attributeChangedCallback --- //\n\n    // Runs when an instance is added to the DOM\n    connectedCallback() {\n        // Make sure instance has an ID. Create an id from name or calculation if needed\n        if (!this.id) {\n            if (!this.name) this.name = this.getAttribute('name')\n            if (this.name) this.id = this.name.toLowerCase().replace(/\\s/g, '_')\n            else this.id = `uib-var-${++UibVar._iCount}`\n        }\n    }  // ---- end of connectedCallback ---- //\n\n    // Runs when an instance is removed from the DOM\n    // disconnectedCallback() {} // ---- end of disconnectedCallback ---- //\n\n    /** Process changes to the required uibuilder variable */\n    doWatch() {\n        if (!this.variable) throw new Error('No variable name provided')\n        // if (!window['uibuilder']) throw new Error('UIBUILDER client library not loaded - this component must be loaded AFTER the UIBUILDER library')\n\n        this.value = window['uibuilder'].get(this.variable)\n        this.varDom()\n\n        // Watch for changes in the variable\n        window['uibuilder'].onChange(this.variable, (val) => {\n            this.value = val\n            this.varDom()\n            if (this.report === true) window['uibuilder'].send({topic: this.variable, payload: this.value || undefined})\n        })\n    }\n\n    /** Convert this.value to DOM output */\n    varDom() {\n        // If user doesn't want to show undefined vars, allow the component slot to show instead\n        if (this.value === undefined && this.undefined !== true) { \n            this.shadow.innerHTML = '<slot></slot>'\n            return\n        }\n        \n        let val = this.value\n\n        // console.log('\uD83E\uDDEA varDOM: ', val, typeof val, this.type)\n\n        switch (this.type) {\n            case 'markdown': {\n                this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(window['uibuilder'].convertMarkdown(val))\n                break\n            }\n        \n            case 'object': {\n                // console.log(window['uibuilder'].syntaxHighlight(val))\n                this.shadow.innerHTML = `<pre class=\"syntax-highlight\">${window['uibuilder'].syntaxHighlight(val)}</pre>`\n                break\n            }\n        \n            case 'plain':\n            case 'html':\n            default: {\n                const t = typeof val\n                if (Array.isArray(val) || t === '[object Object]' || t === 'object') {\n                    try {\n                        this.shadow.innerHTML = JSON.stringify(val)\n                    } catch (e) {\n                        this.shadow.innerHTML = val\n                    }\n                } else {\n                    this.shadow.innerHTML = val\n                }\n                break\n            }\n        }\n\n        this.shadow.appendChild(this.css)\n        // this.$('span').innerHTML = window['uibuilder'].sanitiseHTML(val)\n        // this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(val)\n    }\n}\n\n// Add the class as a new Custom Element to the window object \n// customElements.define('uib-var', UibVar)\n", "const PACKET_TYPES = Object.create(null); // no Map = no polyfill\nPACKET_TYPES[\"open\"] = \"0\";\nPACKET_TYPES[\"close\"] = \"1\";\nPACKET_TYPES[\"ping\"] = \"2\";\nPACKET_TYPES[\"pong\"] = \"3\";\nPACKET_TYPES[\"message\"] = \"4\";\nPACKET_TYPES[\"upgrade\"] = \"5\";\nPACKET_TYPES[\"noop\"] = \"6\";\nconst PACKET_TYPES_REVERSE = Object.create(null);\nObject.keys(PACKET_TYPES).forEach(key => {\n    PACKET_TYPES_REVERSE[PACKET_TYPES[key]] = key;\n});\nconst ERROR_PACKET = { type: \"error\", data: \"parser error\" };\nexport { PACKET_TYPES, PACKET_TYPES_REVERSE, ERROR_PACKET };\n", "import { PACKET_TYPES } from \"./commons.js\";\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        Object.prototype.toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\n// ArrayBuffer.isView method is not defined in IE10\nconst isView = obj => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj && obj.buffer instanceof ArrayBuffer;\n};\nconst encodePacket = ({ type, data }, supportsBinary, callback) => {\n    if (withNativeBlob && data instanceof Blob) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(data, callback);\n        }\n    }\n    else if (withNativeArrayBuffer &&\n        (data instanceof ArrayBuffer || isView(data))) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(new Blob([data]), callback);\n        }\n    }\n    // plain string\n    return callback(PACKET_TYPES[type] + (data || \"\"));\n};\nconst encodeBlobAsBase64 = (data, callback) => {\n    const fileReader = new FileReader();\n    fileReader.onload = function () {\n        const content = fileReader.result.split(\",\")[1];\n        callback(\"b\" + (content || \"\"));\n    };\n    return fileReader.readAsDataURL(data);\n};\nfunction toArray(data) {\n    if (data instanceof Uint8Array) {\n        return data;\n    }\n    else if (data instanceof ArrayBuffer) {\n        return new Uint8Array(data);\n    }\n    else {\n        return new Uint8Array(data.buffer, data.byteOffset, data.byteLength);\n    }\n}\nlet TEXT_ENCODER;\nexport function encodePacketToBinary(packet, callback) {\n    if (withNativeBlob && packet.data instanceof Blob) {\n        return packet.data\n            .arrayBuffer()\n            .then(toArray)\n            .then(callback);\n    }\n    else if (withNativeArrayBuffer &&\n        (packet.data instanceof ArrayBuffer || isView(packet.data))) {\n        return callback(toArray(packet.data));\n    }\n    encodePacket(packet, false, encoded => {\n        if (!TEXT_ENCODER) {\n            TEXT_ENCODER = new TextEncoder();\n        }\n        callback(TEXT_ENCODER.encode(encoded));\n    });\n}\nexport { encodePacket };\n", "// imported from https://github.com/socketio/base64-arraybuffer\nconst chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';\n// Use a lookup table to find the index.\nconst lookup = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);\nfor (let i = 0; i < chars.length; i++) {\n    lookup[chars.charCodeAt(i)] = i;\n}\nexport const encode = (arraybuffer) => {\n    let bytes = new Uint8Array(arraybuffer), i, len = bytes.length, base64 = '';\n    for (i = 0; i < len; i += 3) {\n        base64 += chars[bytes[i] >> 2];\n        base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];\n        base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];\n        base64 += chars[bytes[i + 2] & 63];\n    }\n    if (len % 3 === 2) {\n        base64 = base64.substring(0, base64.length - 1) + '=';\n    }\n    else if (len % 3 === 1) {\n        base64 = base64.substring(0, base64.length - 2) + '==';\n    }\n    return base64;\n};\nexport const decode = (base64) => {\n    let bufferLength = base64.length * 0.75, len = base64.length, i, p = 0, encoded1, encoded2, encoded3, encoded4;\n    if (base64[base64.length - 1] === '=') {\n        bufferLength--;\n        if (base64[base64.length - 2] === '=') {\n            bufferLength--;\n        }\n    }\n    const arraybuffer = new ArrayBuffer(bufferLength), bytes = new Uint8Array(arraybuffer);\n    for (i = 0; i < len; i += 4) {\n        encoded1 = lookup[base64.charCodeAt(i)];\n        encoded2 = lookup[base64.charCodeAt(i + 1)];\n        encoded3 = lookup[base64.charCodeAt(i + 2)];\n        encoded4 = lookup[base64.charCodeAt(i + 3)];\n        bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n        bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n        bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n    }\n    return arraybuffer;\n};\n", "import { ERROR_PACKET, PACKET_TYPES_REVERSE } from \"./commons.js\";\nimport { decode } from \"./contrib/base64-arraybuffer.js\";\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nexport const decodePacket = (encodedPacket, binaryType) => {\n    if (typeof encodedPacket !== \"string\") {\n        return {\n            type: \"message\",\n            data: mapBinary(encodedPacket, binaryType)\n        };\n    }\n    const type = encodedPacket.charAt(0);\n    if (type === \"b\") {\n        return {\n            type: \"message\",\n            data: decodeBase64Packet(encodedPacket.substring(1), binaryType)\n        };\n    }\n    const packetType = PACKET_TYPES_REVERSE[type];\n    if (!packetType) {\n        return ERROR_PACKET;\n    }\n    return encodedPacket.length > 1\n        ? {\n            type: PACKET_TYPES_REVERSE[type],\n            data: encodedPacket.substring(1)\n        }\n        : {\n            type: PACKET_TYPES_REVERSE[type]\n        };\n};\nconst decodeBase64Packet = (data, binaryType) => {\n    if (withNativeArrayBuffer) {\n        const decoded = decode(data);\n        return mapBinary(decoded, binaryType);\n    }\n    else {\n        return { base64: true, data }; // fallback for old browsers\n    }\n};\nconst mapBinary = (data, binaryType) => {\n    switch (binaryType) {\n        case \"blob\":\n            if (data instanceof Blob) {\n                // from WebSocket + binaryType \"blob\"\n                return data;\n            }\n            else {\n                // from HTTP long-polling or WebTransport\n                return new Blob([data]);\n            }\n        case \"arraybuffer\":\n        default:\n            if (data instanceof ArrayBuffer) {\n                // from HTTP long-polling (base64) or WebSocket + binaryType \"arraybuffer\"\n                return data;\n            }\n            else {\n                // from WebTransport (Uint8Array)\n                return data.buffer;\n            }\n    }\n};\n", "import { encodePacket, encodePacketToBinary } from \"./encodePacket.js\";\nimport { decodePacket } from \"./decodePacket.js\";\nimport { ERROR_PACKET } from \"./commons.js\";\nconst SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text\nconst encodePayload = (packets, callback) => {\n    // some packets may be added to the array while encoding, so the initial length must be saved\n    const length = packets.length;\n    const encodedPackets = new Array(length);\n    let count = 0;\n    packets.forEach((packet, i) => {\n        // force base64 encoding for binary packets\n        encodePacket(packet, false, encodedPacket => {\n            encodedPackets[i] = encodedPacket;\n            if (++count === length) {\n                callback(encodedPackets.join(SEPARATOR));\n            }\n        });\n    });\n};\nconst decodePayload = (encodedPayload, binaryType) => {\n    const encodedPackets = encodedPayload.split(SEPARATOR);\n    const packets = [];\n    for (let i = 0; i < encodedPackets.length; i++) {\n        const decodedPacket = decodePacket(encodedPackets[i], binaryType);\n        packets.push(decodedPacket);\n        if (decodedPacket.type === \"error\") {\n            break;\n        }\n    }\n    return packets;\n};\nexport function createPacketEncoderStream() {\n    return new TransformStream({\n        transform(packet, controller) {\n            encodePacketToBinary(packet, encodedPacket => {\n                const payloadLength = encodedPacket.length;\n                let header;\n                // inspired by the WebSocket format: https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API/Writing_WebSocket_servers#decoding_payload_length\n                if (payloadLength < 126) {\n                    header = new Uint8Array(1);\n                    new DataView(header.buffer).setUint8(0, payloadLength);\n                }\n                else if (payloadLength < 65536) {\n                    header = new Uint8Array(3);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 126);\n                    view.setUint16(1, payloadLength);\n                }\n                else {\n                    header = new Uint8Array(9);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 127);\n                    view.setBigUint64(1, BigInt(payloadLength));\n                }\n                // first bit indicates whether the payload is plain text (0) or binary (1)\n                if (packet.data && typeof packet.data !== \"string\") {\n                    header[0] |= 0x80;\n                }\n                controller.enqueue(header);\n                controller.enqueue(encodedPacket);\n            });\n        }\n    });\n}\nlet TEXT_DECODER;\nfunction totalLength(chunks) {\n    return chunks.reduce((acc, chunk) => acc + chunk.length, 0);\n}\nfunction concatChunks(chunks, size) {\n    if (chunks[0].length === size) {\n        return chunks.shift();\n    }\n    const buffer = new Uint8Array(size);\n    let j = 0;\n    for (let i = 0; i < size; i++) {\n        buffer[i] = chunks[0][j++];\n        if (j === chunks[0].length) {\n            chunks.shift();\n            j = 0;\n        }\n    }\n    if (chunks.length && j < chunks[0].length) {\n        chunks[0] = chunks[0].slice(j);\n    }\n    return buffer;\n}\nexport function createPacketDecoderStream(maxPayload, binaryType) {\n    if (!TEXT_DECODER) {\n        TEXT_DECODER = new TextDecoder();\n    }\n    const chunks = [];\n    let state = 0 /* READ_HEADER */;\n    let expectedLength = -1;\n    let isBinary = false;\n    return new TransformStream({\n        transform(chunk, controller) {\n            chunks.push(chunk);\n            while (true) {\n                if (state === 0 /* READ_HEADER */) {\n                    if (totalLength(chunks) < 1) {\n                        break;\n                    }\n                    const header = concatChunks(chunks, 1);\n                    isBinary = (header[0] & 0x80) === 0x80;\n                    expectedLength = header[0] & 0x7f;\n                    if (expectedLength < 126) {\n                        state = 3 /* READ_PAYLOAD */;\n                    }\n                    else if (expectedLength === 126) {\n                        state = 1 /* READ_EXTENDED_LENGTH_16 */;\n                    }\n                    else {\n                        state = 2 /* READ_EXTENDED_LENGTH_64 */;\n                    }\n                }\n                else if (state === 1 /* READ_EXTENDED_LENGTH_16 */) {\n                    if (totalLength(chunks) < 2) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 2);\n                    expectedLength = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length).getUint16(0);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else if (state === 2 /* READ_EXTENDED_LENGTH_64 */) {\n                    if (totalLength(chunks) < 8) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 8);\n                    const view = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length);\n                    const n = view.getUint32(0);\n                    if (n > Math.pow(2, 53 - 32) - 1) {\n                        // the maximum safe integer in JavaScript is 2^53 - 1\n                        controller.enqueue(ERROR_PACKET);\n                        break;\n                    }\n                    expectedLength = n * Math.pow(2, 32) + view.getUint32(4);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else {\n                    if (totalLength(chunks) < expectedLength) {\n                        break;\n                    }\n                    const data = concatChunks(chunks, expectedLength);\n                    controller.enqueue(decodePacket(isBinary ? data : TEXT_DECODER.decode(data), binaryType));\n                    state = 0 /* READ_HEADER */;\n                }\n                if (expectedLength === 0 || expectedLength > maxPayload) {\n                    controller.enqueue(ERROR_PACKET);\n                    break;\n                }\n            }\n        }\n    });\n}\nexport const protocol = 4;\nexport { encodePacket, encodePayload, decodePacket, decodePayload };\n", "/**\n * Initialize a new `Emitter`.\n *\n * @api public\n */\n\nexport function Emitter(obj) {\n  if (obj) return mixin(obj);\n}\n\n/**\n * Mixin the emitter properties.\n *\n * @param {Object} obj\n * @return {Object}\n * @api private\n */\n\nfunction mixin(obj) {\n  for (var key in Emitter.prototype) {\n    obj[key] = Emitter.prototype[key];\n  }\n  return obj;\n}\n\n/**\n * Listen on the given `event` with `fn`.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.on =\nEmitter.prototype.addEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])\n    .push(fn);\n  return this;\n};\n\n/**\n * Adds an `event` listener that will be invoked a single\n * time then automatically removed.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.once = function(event, fn){\n  function on() {\n    this.off(event, on);\n    fn.apply(this, arguments);\n  }\n\n  on.fn = fn;\n  this.on(event, on);\n  return this;\n};\n\n/**\n * Remove the given callback for `event` or all\n * registered callbacks.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.off =\nEmitter.prototype.removeListener =\nEmitter.prototype.removeAllListeners =\nEmitter.prototype.removeEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n\n  // all\n  if (0 == arguments.length) {\n    this._callbacks = {};\n    return this;\n  }\n\n  // specific event\n  var callbacks = this._callbacks['$' + event];\n  if (!callbacks) return this;\n\n  // remove all handlers\n  if (1 == arguments.length) {\n    delete this._callbacks['$' + event];\n    return this;\n  }\n\n  // remove specific handler\n  var cb;\n  for (var i = 0; i < callbacks.length; i++) {\n    cb = callbacks[i];\n    if (cb === fn || cb.fn === fn) {\n      callbacks.splice(i, 1);\n      break;\n    }\n  }\n\n  // Remove event specific arrays for event types that no\n  // one is subscribed for to avoid memory leak.\n  if (callbacks.length === 0) {\n    delete this._callbacks['$' + event];\n  }\n\n  return this;\n};\n\n/**\n * Emit `event` with the given args.\n *\n * @param {String} event\n * @param {Mixed} ...\n * @return {Emitter}\n */\n\nEmitter.prototype.emit = function(event){\n  this._callbacks = this._callbacks || {};\n\n  var args = new Array(arguments.length - 1)\n    , callbacks = this._callbacks['$' + event];\n\n  for (var i = 1; i < arguments.length; i++) {\n    args[i - 1] = arguments[i];\n  }\n\n  if (callbacks) {\n    callbacks = callbacks.slice(0);\n    for (var i = 0, len = callbacks.length; i < len; ++i) {\n      callbacks[i].apply(this, args);\n    }\n  }\n\n  return this;\n};\n\n// alias used for reserved events (protected method)\nEmitter.prototype.emitReserved = Emitter.prototype.emit;\n\n/**\n * Return array of callbacks for `event`.\n *\n * @param {String} event\n * @return {Array}\n * @api public\n */\n\nEmitter.prototype.listeners = function(event){\n  this._callbacks = this._callbacks || {};\n  return this._callbacks['$' + event] || [];\n};\n\n/**\n * Check if this emitter has `event` handlers.\n *\n * @param {String} event\n * @return {Boolean}\n * @api public\n */\n\nEmitter.prototype.hasListeners = function(event){\n  return !! this.listeners(event).length;\n};\n", "export const globalThisShim = (() => {\n    if (typeof self !== \"undefined\") {\n        return self;\n    }\n    else if (typeof window !== \"undefined\") {\n        return window;\n    }\n    else {\n        return Function(\"return this\")();\n    }\n})();\n", "import { globalThisShim as globalThis } from \"./globalThis.js\";\nexport function pick(obj, ...attr) {\n    return attr.reduce((acc, k) => {\n        if (obj.hasOwnProperty(k)) {\n            acc[k] = obj[k];\n        }\n        return acc;\n    }, {});\n}\n// Keep a reference to the real timeout functions so they can be used when overridden\nconst NATIVE_SET_TIMEOUT = globalThis.setTimeout;\nconst NATIVE_CLEAR_TIMEOUT = globalThis.clearTimeout;\nexport function installTimerFunctions(obj, opts) {\n    if (opts.useNativeTimers) {\n        obj.setTimeoutFn = NATIVE_SET_TIMEOUT.bind(globalThis);\n        obj.clearTimeoutFn = NATIVE_CLEAR_TIMEOUT.bind(globalThis);\n    }\n    else {\n        obj.setTimeoutFn = globalThis.setTimeout.bind(globalThis);\n        obj.clearTimeoutFn = globalThis.clearTimeout.bind(globalThis);\n    }\n}\n// base64 encoded buffers are about 33% bigger (https://en.wikipedia.org/wiki/Base64)\nconst BASE64_OVERHEAD = 1.33;\n// we could also have used `new Blob([obj]).size`, but it isn't supported in IE9\nexport function byteLength(obj) {\n    if (typeof obj === \"string\") {\n        return utf8Length(obj);\n    }\n    // arraybuffer or blob\n    return Math.ceil((obj.byteLength || obj.size) * BASE64_OVERHEAD);\n}\nfunction utf8Length(str) {\n    let c = 0, length = 0;\n    for (let i = 0, l = str.length; i < l; i++) {\n        c = str.charCodeAt(i);\n        if (c < 0x80) {\n            length += 1;\n        }\n        else if (c < 0x800) {\n            length += 2;\n        }\n        else if (c < 0xd800 || c >= 0xe000) {\n            length += 3;\n        }\n        else {\n            i++;\n            length += 4;\n        }\n    }\n    return length;\n}\n", "// imported from https://github.com/galkn/querystring\n/**\n * Compiles a querystring\n * Returns string representation of the object\n *\n * @param {Object}\n * @api private\n */\nexport function encode(obj) {\n    let str = '';\n    for (let i in obj) {\n        if (obj.hasOwnProperty(i)) {\n            if (str.length)\n                str += '&';\n            str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);\n        }\n    }\n    return str;\n}\n/**\n * Parses a simple querystring into an object\n *\n * @param {String} qs\n * @api private\n */\nexport function decode(qs) {\n    let qry = {};\n    let pairs = qs.split('&');\n    for (let i = 0, l = pairs.length; i < l; i++) {\n        let pair = pairs[i].split('=');\n        qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);\n    }\n    return qry;\n}\n", "import { decodePacket } from \"engine.io-parser\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions } from \"./util.js\";\nimport { encode } from \"./contrib/parseqs.js\";\nexport class TransportError extends Error {\n    constructor(reason, description, context) {\n        super(reason);\n        this.description = description;\n        this.context = context;\n        this.type = \"TransportError\";\n    }\n}\nexport class Transport extends Emitter {\n    /**\n     * Transport abstract constructor.\n     *\n     * @param {Object} opts - options\n     * @protected\n     */\n    constructor(opts) {\n        super();\n        this.writable = false;\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.query = opts.query;\n        this.socket = opts.socket;\n    }\n    /**\n     * Emits an error.\n     *\n     * @param {String} reason\n     * @param description\n     * @param context - the error context\n     * @return {Transport} for chaining\n     * @protected\n     */\n    onError(reason, description, context) {\n        super.emitReserved(\"error\", new TransportError(reason, description, context));\n        return this;\n    }\n    /**\n     * Opens the transport.\n     */\n    open() {\n        this.readyState = \"opening\";\n        this.doOpen();\n        return this;\n    }\n    /**\n     * Closes the transport.\n     */\n    close() {\n        if (this.readyState === \"opening\" || this.readyState === \"open\") {\n            this.doClose();\n            this.onClose();\n        }\n        return this;\n    }\n    /**\n     * Sends multiple packets.\n     *\n     * @param {Array} packets\n     */\n    send(packets) {\n        if (this.readyState === \"open\") {\n            this.write(packets);\n        }\n        else {\n            // this might happen if the transport was silently closed in the beforeunload event handler\n        }\n    }\n    /**\n     * Called upon open\n     *\n     * @protected\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        this.writable = true;\n        super.emitReserved(\"open\");\n    }\n    /**\n     * Called with data.\n     *\n     * @param {String} data\n     * @protected\n     */\n    onData(data) {\n        const packet = decodePacket(data, this.socket.binaryType);\n        this.onPacket(packet);\n    }\n    /**\n     * Called with a decoded packet.\n     *\n     * @protected\n     */\n    onPacket(packet) {\n        super.emitReserved(\"packet\", packet);\n    }\n    /**\n     * Called upon close.\n     *\n     * @protected\n     */\n    onClose(details) {\n        this.readyState = \"closed\";\n        super.emitReserved(\"close\", details);\n    }\n    /**\n     * Pauses the transport, in order not to lose packets during an upgrade.\n     *\n     * @param onPause\n     */\n    pause(onPause) { }\n    createUri(schema, query = {}) {\n        return (schema +\n            \"://\" +\n            this._hostname() +\n            this._port() +\n            this.opts.path +\n            this._query(query));\n    }\n    _hostname() {\n        const hostname = this.opts.hostname;\n        return hostname.indexOf(\":\") === -1 ? hostname : \"[\" + hostname + \"]\";\n    }\n    _port() {\n        if (this.opts.port &&\n            ((this.opts.secure && Number(this.opts.port !== 443)) ||\n                (!this.opts.secure && Number(this.opts.port) !== 80))) {\n            return \":\" + this.opts.port;\n        }\n        else {\n            return \"\";\n        }\n    }\n    _query(query) {\n        const encodedQuery = encode(query);\n        return encodedQuery.length ? \"?\" + encodedQuery : \"\";\n    }\n}\n", "// imported from https://github.com/unshiftio/yeast\n'use strict';\nconst alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split(''), length = 64, map = {};\nlet seed = 0, i = 0, prev;\n/**\n * Return a string representing the specified number.\n *\n * @param {Number} num The number to convert.\n * @returns {String} The string representation of the number.\n * @api public\n */\nexport function encode(num) {\n    let encoded = '';\n    do {\n        encoded = alphabet[num % length] + encoded;\n        num = Math.floor(num / length);\n    } while (num > 0);\n    return encoded;\n}\n/**\n * Return the integer value specified by the given string.\n *\n * @param {String} str The string to convert.\n * @returns {Number} The integer value represented by the string.\n * @api public\n */\nexport function decode(str) {\n    let decoded = 0;\n    for (i = 0; i < str.length; i++) {\n        decoded = decoded * length + map[str.charAt(i)];\n    }\n    return decoded;\n}\n/**\n * Yeast: A tiny growing id generator.\n *\n * @returns {String} A unique id.\n * @api public\n */\nexport function yeast() {\n    const now = encode(+new Date());\n    if (now !== prev)\n        return seed = 0, prev = now;\n    return now + '.' + encode(seed++);\n}\n//\n// Map each character to its index.\n//\nfor (; i < length; i++)\n    map[alphabet[i]] = i;\n", "// imported from https://github.com/component/has-cors\nlet value = false;\ntry {\n    value = typeof XMLHttpRequest !== 'undefined' &&\n        'withCredentials' in new XMLHttpRequest();\n}\ncatch (err) {\n    // if XMLHttp support is disabled in IE then it will throw\n    // when trying to create\n}\nexport const hasCORS = value;\n", "// browser shim for xmlhttprequest module\nimport { hasCORS } from \"../contrib/has-cors.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nexport function XHR(opts) {\n    const xdomain = opts.xdomain;\n    // XMLHttpRequest can be disabled on IE\n    try {\n        if (\"undefined\" !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {\n            return new XMLHttpRequest();\n        }\n    }\n    catch (e) { }\n    if (!xdomain) {\n        try {\n            return new globalThis[[\"Active\"].concat(\"Object\").join(\"X\")](\"Microsoft.XMLHTTP\");\n        }\n        catch (e) { }\n    }\n}\nexport function createCookieJar() { }\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { encodePayload, decodePayload } from \"engine.io-parser\";\nimport { createCookieJar, XHR as XMLHttpRequest, } from \"./xmlhttprequest.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions, pick } from \"../util.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nfunction empty() { }\nconst hasXHR2 = (function () {\n    const xhr = new XMLHttpRequest({\n        xdomain: false,\n    });\n    return null != xhr.responseType;\n})();\nexport class Polling extends Transport {\n    /**\n     * XHR Polling constructor.\n     *\n     * @param {Object} opts\n     * @package\n     */\n    constructor(opts) {\n        super(opts);\n        this.polling = false;\n        if (typeof location !== \"undefined\") {\n            const isSSL = \"https:\" === location.protocol;\n            let port = location.port;\n            // some user agents have empty `location.port`\n            if (!port) {\n                port = isSSL ? \"443\" : \"80\";\n            }\n            this.xd =\n                (typeof location !== \"undefined\" &&\n                    opts.hostname !== location.hostname) ||\n                    port !== opts.port;\n        }\n        /**\n         * XHR supports binary\n         */\n        const forceBase64 = opts && opts.forceBase64;\n        this.supportsBinary = hasXHR2 && !forceBase64;\n        if (this.opts.withCredentials) {\n            this.cookieJar = createCookieJar();\n        }\n    }\n    get name() {\n        return \"polling\";\n    }\n    /**\n     * Opens the socket (triggers polling). We write a PING message to determine\n     * when the transport is open.\n     *\n     * @protected\n     */\n    doOpen() {\n        this.poll();\n    }\n    /**\n     * Pauses polling.\n     *\n     * @param {Function} onPause - callback upon buffers are flushed and transport is paused\n     * @package\n     */\n    pause(onPause) {\n        this.readyState = \"pausing\";\n        const pause = () => {\n            this.readyState = \"paused\";\n            onPause();\n        };\n        if (this.polling || !this.writable) {\n            let total = 0;\n            if (this.polling) {\n                total++;\n                this.once(\"pollComplete\", function () {\n                    --total || pause();\n                });\n            }\n            if (!this.writable) {\n                total++;\n                this.once(\"drain\", function () {\n                    --total || pause();\n                });\n            }\n        }\n        else {\n            pause();\n        }\n    }\n    /**\n     * Starts polling cycle.\n     *\n     * @private\n     */\n    poll() {\n        this.polling = true;\n        this.doPoll();\n        this.emitReserved(\"poll\");\n    }\n    /**\n     * Overloads onData to detect payloads.\n     *\n     * @protected\n     */\n    onData(data) {\n        const callback = (packet) => {\n            // if its the first message we consider the transport open\n            if (\"opening\" === this.readyState && packet.type === \"open\") {\n                this.onOpen();\n            }\n            // if its a close packet, we close the ongoing requests\n            if (\"close\" === packet.type) {\n                this.onClose({ description: \"transport closed by the server\" });\n                return false;\n            }\n            // otherwise bypass onData and handle the message\n            this.onPacket(packet);\n        };\n        // decode payload\n        decodePayload(data, this.socket.binaryType).forEach(callback);\n        // if an event did not trigger closing\n        if (\"closed\" !== this.readyState) {\n            // if we got data we're not polling\n            this.polling = false;\n            this.emitReserved(\"pollComplete\");\n            if (\"open\" === this.readyState) {\n                this.poll();\n            }\n            else {\n            }\n        }\n    }\n    /**\n     * For polling, send a close packet.\n     *\n     * @protected\n     */\n    doClose() {\n        const close = () => {\n            this.write([{ type: \"close\" }]);\n        };\n        if (\"open\" === this.readyState) {\n            close();\n        }\n        else {\n            // in case we're trying to close while\n            // handshaking is in progress (GH-164)\n            this.once(\"open\", close);\n        }\n    }\n    /**\n     * Writes a packets payload.\n     *\n     * @param {Array} packets - data packets\n     * @protected\n     */\n    write(packets) {\n        this.writable = false;\n        encodePayload(packets, (data) => {\n            this.doWrite(data, () => {\n                this.writable = true;\n                this.emitReserved(\"drain\");\n            });\n        });\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"https\" : \"http\";\n        const query = this.query || {};\n        // cache busting is forced\n        if (false !== this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        if (!this.supportsBinary && !query.sid) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Creates a request.\n     *\n     * @param {String} method\n     * @private\n     */\n    request(opts = {}) {\n        Object.assign(opts, { xd: this.xd, cookieJar: this.cookieJar }, this.opts);\n        return new Request(this.uri(), opts);\n    }\n    /**\n     * Sends data.\n     *\n     * @param {String} data to send.\n     * @param {Function} called upon flush.\n     * @private\n     */\n    doWrite(data, fn) {\n        const req = this.request({\n            method: \"POST\",\n            data: data,\n        });\n        req.on(\"success\", fn);\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr post error\", xhrStatus, context);\n        });\n    }\n    /**\n     * Starts a poll cycle.\n     *\n     * @private\n     */\n    doPoll() {\n        const req = this.request();\n        req.on(\"data\", this.onData.bind(this));\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr poll error\", xhrStatus, context);\n        });\n        this.pollXhr = req;\n    }\n}\nexport class Request extends Emitter {\n    /**\n     * Request constructor\n     *\n     * @param {Object} options\n     * @package\n     */\n    constructor(uri, opts) {\n        super();\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.method = opts.method || \"GET\";\n        this.uri = uri;\n        this.data = undefined !== opts.data ? opts.data : null;\n        this.create();\n    }\n    /**\n     * Creates the XHR object and sends the request.\n     *\n     * @private\n     */\n    create() {\n        var _a;\n        const opts = pick(this.opts, \"agent\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"autoUnref\");\n        opts.xdomain = !!this.opts.xd;\n        const xhr = (this.xhr = new XMLHttpRequest(opts));\n        try {\n            xhr.open(this.method, this.uri, true);\n            try {\n                if (this.opts.extraHeaders) {\n                    xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);\n                    for (let i in this.opts.extraHeaders) {\n                        if (this.opts.extraHeaders.hasOwnProperty(i)) {\n                            xhr.setRequestHeader(i, this.opts.extraHeaders[i]);\n                        }\n                    }\n                }\n            }\n            catch (e) { }\n            if (\"POST\" === this.method) {\n                try {\n                    xhr.setRequestHeader(\"Content-type\", \"text/plain;charset=UTF-8\");\n                }\n                catch (e) { }\n            }\n            try {\n                xhr.setRequestHeader(\"Accept\", \"*/*\");\n            }\n            catch (e) { }\n            (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.addCookies(xhr);\n            // ie6 check\n            if (\"withCredentials\" in xhr) {\n                xhr.withCredentials = this.opts.withCredentials;\n            }\n            if (this.opts.requestTimeout) {\n                xhr.timeout = this.opts.requestTimeout;\n            }\n            xhr.onreadystatechange = () => {\n                var _a;\n                if (xhr.readyState === 3) {\n                    (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.parseCookies(xhr);\n                }\n                if (4 !== xhr.readyState)\n                    return;\n                if (200 === xhr.status || 1223 === xhr.status) {\n                    this.onLoad();\n                }\n                else {\n                    // make sure the `error` event handler that's user-set\n                    // does not throw in the same tick and gets caught here\n                    this.setTimeoutFn(() => {\n                        this.onError(typeof xhr.status === \"number\" ? xhr.status : 0);\n                    }, 0);\n                }\n            };\n            xhr.send(this.data);\n        }\n        catch (e) {\n            // Need to defer since .create() is called directly from the constructor\n            // and thus the 'error' event can only be only bound *after* this exception\n            // occurs.  Therefore, also, we cannot throw here at all.\n            this.setTimeoutFn(() => {\n                this.onError(e);\n            }, 0);\n            return;\n        }\n        if (typeof document !== \"undefined\") {\n            this.index = Request.requestsCount++;\n            Request.requests[this.index] = this;\n        }\n    }\n    /**\n     * Called upon error.\n     *\n     * @private\n     */\n    onError(err) {\n        this.emitReserved(\"error\", err, this.xhr);\n        this.cleanup(true);\n    }\n    /**\n     * Cleans up house.\n     *\n     * @private\n     */\n    cleanup(fromError) {\n        if (\"undefined\" === typeof this.xhr || null === this.xhr) {\n            return;\n        }\n        this.xhr.onreadystatechange = empty;\n        if (fromError) {\n            try {\n                this.xhr.abort();\n            }\n            catch (e) { }\n        }\n        if (typeof document !== \"undefined\") {\n            delete Request.requests[this.index];\n        }\n        this.xhr = null;\n    }\n    /**\n     * Called upon load.\n     *\n     * @private\n     */\n    onLoad() {\n        const data = this.xhr.responseText;\n        if (data !== null) {\n            this.emitReserved(\"data\", data);\n            this.emitReserved(\"success\");\n            this.cleanup();\n        }\n    }\n    /**\n     * Aborts the request.\n     *\n     * @package\n     */\n    abort() {\n        this.cleanup();\n    }\n}\nRequest.requestsCount = 0;\nRequest.requests = {};\n/**\n * Aborts pending requests when unloading the window. This is needed to prevent\n * memory leaks (e.g. when using IE) and to ensure that no spurious error is\n * emitted.\n */\nif (typeof document !== \"undefined\") {\n    // @ts-ignore\n    if (typeof attachEvent === \"function\") {\n        // @ts-ignore\n        attachEvent(\"onunload\", unloadHandler);\n    }\n    else if (typeof addEventListener === \"function\") {\n        const terminationEvent = \"onpagehide\" in globalThis ? \"pagehide\" : \"unload\";\n        addEventListener(terminationEvent, unloadHandler, false);\n    }\n}\nfunction unloadHandler() {\n    for (let i in Request.requests) {\n        if (Request.requests.hasOwnProperty(i)) {\n            Request.requests[i].abort();\n        }\n    }\n}\n", "import { globalThisShim as globalThis } from \"../globalThis.js\";\nexport const nextTick = (() => {\n    const isPromiseAvailable = typeof Promise === \"function\" && typeof Promise.resolve === \"function\";\n    if (isPromiseAvailable) {\n        return (cb) => Promise.resolve().then(cb);\n    }\n    else {\n        return (cb, setTimeoutFn) => setTimeoutFn(cb, 0);\n    }\n})();\nexport const WebSocket = globalThis.WebSocket || globalThis.MozWebSocket;\nexport const usingBrowserWebSocket = true;\nexport const defaultBinaryType = \"arraybuffer\";\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { pick } from \"../util.js\";\nimport { nextTick, usingBrowserWebSocket, WebSocket, } from \"./websocket-constructor.js\";\nimport { encodePacket } from \"engine.io-parser\";\n// detect ReactNative environment\nconst isReactNative = typeof navigator !== \"undefined\" &&\n    typeof navigator.product === \"string\" &&\n    navigator.product.toLowerCase() === \"reactnative\";\nexport class WS extends Transport {\n    /**\n     * WebSocket transport constructor.\n     *\n     * @param {Object} opts - connection options\n     * @protected\n     */\n    constructor(opts) {\n        super(opts);\n        this.supportsBinary = !opts.forceBase64;\n    }\n    get name() {\n        return \"websocket\";\n    }\n    doOpen() {\n        if (!this.check()) {\n            // let probe timeout\n            return;\n        }\n        const uri = this.uri();\n        const protocols = this.opts.protocols;\n        // React Native only supports the 'headers' option, and will print a warning if anything else is passed\n        const opts = isReactNative\n            ? {}\n            : pick(this.opts, \"agent\", \"perMessageDeflate\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"localAddress\", \"protocolVersion\", \"origin\", \"maxPayload\", \"family\", \"checkServerIdentity\");\n        if (this.opts.extraHeaders) {\n            opts.headers = this.opts.extraHeaders;\n        }\n        try {\n            this.ws =\n                usingBrowserWebSocket && !isReactNative\n                    ? protocols\n                        ? new WebSocket(uri, protocols)\n                        : new WebSocket(uri)\n                    : new WebSocket(uri, protocols, opts);\n        }\n        catch (err) {\n            return this.emitReserved(\"error\", err);\n        }\n        this.ws.binaryType = this.socket.binaryType;\n        this.addEventListeners();\n    }\n    /**\n     * Adds event listeners to the socket\n     *\n     * @private\n     */\n    addEventListeners() {\n        this.ws.onopen = () => {\n            if (this.opts.autoUnref) {\n                this.ws._socket.unref();\n            }\n            this.onOpen();\n        };\n        this.ws.onclose = (closeEvent) => this.onClose({\n            description: \"websocket connection closed\",\n            context: closeEvent,\n        });\n        this.ws.onmessage = (ev) => this.onData(ev.data);\n        this.ws.onerror = (e) => this.onError(\"websocket error\", e);\n    }\n    write(packets) {\n        this.writable = false;\n        // encodePacket efficient as it uses WS framing\n        // no need for encodePayload\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            encodePacket(packet, this.supportsBinary, (data) => {\n                // always create a new object (GH-437)\n                const opts = {};\n                if (!usingBrowserWebSocket) {\n                    if (packet.options) {\n                        opts.compress = packet.options.compress;\n                    }\n                    if (this.opts.perMessageDeflate) {\n                        const len = \n                        // @ts-ignore\n                        \"string\" === typeof data ? Buffer.byteLength(data) : data.length;\n                        if (len < this.opts.perMessageDeflate.threshold) {\n                            opts.compress = false;\n                        }\n                    }\n                }\n                // Sometimes the websocket has already been closed but the browser didn't\n                // have a chance of informing us about it yet, in that case send will\n                // throw an error\n                try {\n                    if (usingBrowserWebSocket) {\n                        // TypeError is thrown when passing the second argument on Safari\n                        this.ws.send(data);\n                    }\n                    else {\n                        this.ws.send(data, opts);\n                    }\n                }\n                catch (e) {\n                }\n                if (lastPacket) {\n                    // fake drain\n                    // defer to next tick to allow Socket to clear writeBuffer\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        if (typeof this.ws !== \"undefined\") {\n            this.ws.close();\n            this.ws = null;\n        }\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"wss\" : \"ws\";\n        const query = this.query || {};\n        // append timestamp to URI\n        if (this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        // communicate binary support capabilities\n        if (!this.supportsBinary) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Feature detection for WebSocket.\n     *\n     * @return {Boolean} whether this transport is available.\n     * @private\n     */\n    check() {\n        return !!WebSocket;\n    }\n}\n", "import { Transport } from \"../transport.js\";\nimport { nextTick } from \"./websocket-constructor.js\";\nimport { createPacketDecoderStream, createPacketEncoderStream, } from \"engine.io-parser\";\nexport class WT extends Transport {\n    get name() {\n        return \"webtransport\";\n    }\n    doOpen() {\n        // @ts-ignore\n        if (typeof WebTransport !== \"function\") {\n            return;\n        }\n        // @ts-ignore\n        this.transport = new WebTransport(this.createUri(\"https\"), this.opts.transportOptions[this.name]);\n        this.transport.closed\n            .then(() => {\n            this.onClose();\n        })\n            .catch((err) => {\n            this.onError(\"webtransport error\", err);\n        });\n        // note: we could have used async/await, but that would require some additional polyfills\n        this.transport.ready.then(() => {\n            this.transport.createBidirectionalStream().then((stream) => {\n                const decoderStream = createPacketDecoderStream(Number.MAX_SAFE_INTEGER, this.socket.binaryType);\n                const reader = stream.readable.pipeThrough(decoderStream).getReader();\n                const encoderStream = createPacketEncoderStream();\n                encoderStream.readable.pipeTo(stream.writable);\n                this.writer = encoderStream.writable.getWriter();\n                const read = () => {\n                    reader\n                        .read()\n                        .then(({ done, value }) => {\n                        if (done) {\n                            return;\n                        }\n                        this.onPacket(value);\n                        read();\n                    })\n                        .catch((err) => {\n                    });\n                };\n                read();\n                const packet = { type: \"open\" };\n                if (this.query.sid) {\n                    packet.data = `{\"sid\":\"${this.query.sid}\"}`;\n                }\n                this.writer.write(packet).then(() => this.onOpen());\n            });\n        });\n    }\n    write(packets) {\n        this.writable = false;\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            this.writer.write(packet).then(() => {\n                if (lastPacket) {\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        var _a;\n        (_a = this.transport) === null || _a === void 0 ? void 0 : _a.close();\n    }\n}\n", "import { Polling } from \"./polling.js\";\nimport { WS } from \"./websocket.js\";\nimport { WT } from \"./webtransport.js\";\nexport const transports = {\n    websocket: WS,\n    webtransport: WT,\n    polling: Polling,\n};\n", "// imported from https://github.com/galkn/parseuri\n/**\n * Parses a URI\n *\n * Note: we could also have used the built-in URL object, but it isn't supported on all platforms.\n *\n * See:\n * - https://developer.mozilla.org/en-US/docs/Web/API/URL\n * - https://caniuse.com/url\n * - https://www.rfc-editor.org/rfc/rfc3986#appendix-B\n *\n * History of the parse() method:\n * - first commit: https://github.com/socketio/socket.io-client/commit/4ee1d5d94b3906a9c052b459f1a818b15f38f91c\n * - export into its own module: https://github.com/socketio/engine.io-client/commit/de2c561e4564efeb78f1bdb1ba39ef81b2822cb3\n * - reimport: https://github.com/socketio/engine.io-client/commit/df32277c3f6d622eec5ed09f493cae3f3391d242\n *\n * @author Steven Levithan <stevenlevithan.com> (MIT license)\n * @api private\n */\nconst re = /^(?:(?![^:@\\/?#]+:[^:@\\/]*@)(http|https|ws|wss):\\/\\/)?((?:(([^:@\\/?#]*)(?::([^:@\\/?#]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\\/?#]*)(?::(\\d*))?)(((\\/(?:[^?#](?![^?#\\/]*\\.[^?#\\/.]+(?:[?#]|$)))*\\/?)?([^?#\\/]*))(?:\\?([^#]*))?(?:#(.*))?)/;\nconst parts = [\n    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'\n];\nexport function parse(str) {\n    if (str.length > 2000) {\n        throw \"URI too long\";\n    }\n    const src = str, b = str.indexOf('['), e = str.indexOf(']');\n    if (b != -1 && e != -1) {\n        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);\n    }\n    let m = re.exec(str || ''), uri = {}, i = 14;\n    while (i--) {\n        uri[parts[i]] = m[i] || '';\n    }\n    if (b != -1 && e != -1) {\n        uri.source = src;\n        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');\n        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');\n        uri.ipv6uri = true;\n    }\n    uri.pathNames = pathNames(uri, uri['path']);\n    uri.queryKey = queryKey(uri, uri['query']);\n    return uri;\n}\nfunction pathNames(obj, path) {\n    const regx = /\\/{2,9}/g, names = path.replace(regx, \"/\").split(\"/\");\n    if (path.slice(0, 1) == '/' || path.length === 0) {\n        names.splice(0, 1);\n    }\n    if (path.slice(-1) == '/') {\n        names.splice(names.length - 1, 1);\n    }\n    return names;\n}\nfunction queryKey(uri, query) {\n    const data = {};\n    query.replace(/(?:^|&)([^&=]*)=?([^&]*)/g, function ($0, $1, $2) {\n        if ($1) {\n            data[$1] = $2;\n        }\n    });\n    return data;\n}\n", "import { transports } from \"./transports/index.js\";\nimport { installTimerFunctions, byteLength } from \"./util.js\";\nimport { decode } from \"./contrib/parseqs.js\";\nimport { parse } from \"./contrib/parseuri.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { protocol } from \"engine.io-parser\";\nimport { defaultBinaryType } from \"./transports/websocket-constructor.js\";\nexport class Socket extends Emitter {\n    /**\n     * Socket constructor.\n     *\n     * @param {String|Object} uri - uri or options\n     * @param {Object} opts - options\n     */\n    constructor(uri, opts = {}) {\n        super();\n        this.binaryType = defaultBinaryType;\n        this.writeBuffer = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = null;\n        }\n        if (uri) {\n            uri = parse(uri);\n            opts.hostname = uri.host;\n            opts.secure = uri.protocol === \"https\" || uri.protocol === \"wss\";\n            opts.port = uri.port;\n            if (uri.query)\n                opts.query = uri.query;\n        }\n        else if (opts.host) {\n            opts.hostname = parse(opts.host).host;\n        }\n        installTimerFunctions(this, opts);\n        this.secure =\n            null != opts.secure\n                ? opts.secure\n                : typeof location !== \"undefined\" && \"https:\" === location.protocol;\n        if (opts.hostname && !opts.port) {\n            // if no port is specified manually, use the protocol default\n            opts.port = this.secure ? \"443\" : \"80\";\n        }\n        this.hostname =\n            opts.hostname ||\n                (typeof location !== \"undefined\" ? location.hostname : \"localhost\");\n        this.port =\n            opts.port ||\n                (typeof location !== \"undefined\" && location.port\n                    ? location.port\n                    : this.secure\n                        ? \"443\"\n                        : \"80\");\n        this.transports = opts.transports || [\n            \"polling\",\n            \"websocket\",\n            \"webtransport\",\n        ];\n        this.writeBuffer = [];\n        this.prevBufferLen = 0;\n        this.opts = Object.assign({\n            path: \"/engine.io\",\n            agent: false,\n            withCredentials: false,\n            upgrade: true,\n            timestampParam: \"t\",\n            rememberUpgrade: false,\n            addTrailingSlash: true,\n            rejectUnauthorized: true,\n            perMessageDeflate: {\n                threshold: 1024,\n            },\n            transportOptions: {},\n            closeOnBeforeunload: false,\n        }, opts);\n        this.opts.path =\n            this.opts.path.replace(/\\/$/, \"\") +\n                (this.opts.addTrailingSlash ? \"/\" : \"\");\n        if (typeof this.opts.query === \"string\") {\n            this.opts.query = decode(this.opts.query);\n        }\n        // set on handshake\n        this.id = null;\n        this.upgrades = null;\n        this.pingInterval = null;\n        this.pingTimeout = null;\n        // set on heartbeat\n        this.pingTimeoutTimer = null;\n        if (typeof addEventListener === \"function\") {\n            if (this.opts.closeOnBeforeunload) {\n                // Firefox closes the connection when the \"beforeunload\" event is emitted but not Chrome. This event listener\n                // ensures every browser behaves the same (no \"disconnect\" event at the Socket.IO level when the page is\n                // closed/reloaded)\n                this.beforeunloadEventListener = () => {\n                    if (this.transport) {\n                        // silently close the transport\n                        this.transport.removeAllListeners();\n                        this.transport.close();\n                    }\n                };\n                addEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n            }\n            if (this.hostname !== \"localhost\") {\n                this.offlineEventListener = () => {\n                    this.onClose(\"transport close\", {\n                        description: \"network connection lost\",\n                    });\n                };\n                addEventListener(\"offline\", this.offlineEventListener, false);\n            }\n        }\n        this.open();\n    }\n    /**\n     * Creates transport of the given type.\n     *\n     * @param {String} name - transport name\n     * @return {Transport}\n     * @private\n     */\n    createTransport(name) {\n        const query = Object.assign({}, this.opts.query);\n        // append engine.io protocol identifier\n        query.EIO = protocol;\n        // transport name\n        query.transport = name;\n        // session id if we already have one\n        if (this.id)\n            query.sid = this.id;\n        const opts = Object.assign({}, this.opts, {\n            query,\n            socket: this,\n            hostname: this.hostname,\n            secure: this.secure,\n            port: this.port,\n        }, this.opts.transportOptions[name]);\n        return new transports[name](opts);\n    }\n    /**\n     * Initializes transport to use and starts probe.\n     *\n     * @private\n     */\n    open() {\n        let transport;\n        if (this.opts.rememberUpgrade &&\n            Socket.priorWebsocketSuccess &&\n            this.transports.indexOf(\"websocket\") !== -1) {\n            transport = \"websocket\";\n        }\n        else if (0 === this.transports.length) {\n            // Emit error on next tick so it can be listened to\n            this.setTimeoutFn(() => {\n                this.emitReserved(\"error\", \"No transports available\");\n            }, 0);\n            return;\n        }\n        else {\n            transport = this.transports[0];\n        }\n        this.readyState = \"opening\";\n        // Retry with the next transport if the transport is disabled (jsonp: false)\n        try {\n            transport = this.createTransport(transport);\n        }\n        catch (e) {\n            this.transports.shift();\n            this.open();\n            return;\n        }\n        transport.open();\n        this.setTransport(transport);\n    }\n    /**\n     * Sets the current transport. Disables the existing one (if any).\n     *\n     * @private\n     */\n    setTransport(transport) {\n        if (this.transport) {\n            this.transport.removeAllListeners();\n        }\n        // set up transport\n        this.transport = transport;\n        // set up transport listeners\n        transport\n            .on(\"drain\", this.onDrain.bind(this))\n            .on(\"packet\", this.onPacket.bind(this))\n            .on(\"error\", this.onError.bind(this))\n            .on(\"close\", (reason) => this.onClose(\"transport close\", reason));\n    }\n    /**\n     * Probes a transport.\n     *\n     * @param {String} name - transport name\n     * @private\n     */\n    probe(name) {\n        let transport = this.createTransport(name);\n        let failed = false;\n        Socket.priorWebsocketSuccess = false;\n        const onTransportOpen = () => {\n            if (failed)\n                return;\n            transport.send([{ type: \"ping\", data: \"probe\" }]);\n            transport.once(\"packet\", (msg) => {\n                if (failed)\n                    return;\n                if (\"pong\" === msg.type && \"probe\" === msg.data) {\n                    this.upgrading = true;\n                    this.emitReserved(\"upgrading\", transport);\n                    if (!transport)\n                        return;\n                    Socket.priorWebsocketSuccess = \"websocket\" === transport.name;\n                    this.transport.pause(() => {\n                        if (failed)\n                            return;\n                        if (\"closed\" === this.readyState)\n                            return;\n                        cleanup();\n                        this.setTransport(transport);\n                        transport.send([{ type: \"upgrade\" }]);\n                        this.emitReserved(\"upgrade\", transport);\n                        transport = null;\n                        this.upgrading = false;\n                        this.flush();\n                    });\n                }\n                else {\n                    const err = new Error(\"probe error\");\n                    // @ts-ignore\n                    err.transport = transport.name;\n                    this.emitReserved(\"upgradeError\", err);\n                }\n            });\n        };\n        function freezeTransport() {\n            if (failed)\n                return;\n            // Any callback called by transport should be ignored since now\n            failed = true;\n            cleanup();\n            transport.close();\n            transport = null;\n        }\n        // Handle any error that happens while probing\n        const onerror = (err) => {\n            const error = new Error(\"probe error: \" + err);\n            // @ts-ignore\n            error.transport = transport.name;\n            freezeTransport();\n            this.emitReserved(\"upgradeError\", error);\n        };\n        function onTransportClose() {\n            onerror(\"transport closed\");\n        }\n        // When the socket is closed while we're probing\n        function onclose() {\n            onerror(\"socket closed\");\n        }\n        // When the socket is upgraded while we're probing\n        function onupgrade(to) {\n            if (transport && to.name !== transport.name) {\n                freezeTransport();\n            }\n        }\n        // Remove all listeners on the transport and on self\n        const cleanup = () => {\n            transport.removeListener(\"open\", onTransportOpen);\n            transport.removeListener(\"error\", onerror);\n            transport.removeListener(\"close\", onTransportClose);\n            this.off(\"close\", onclose);\n            this.off(\"upgrading\", onupgrade);\n        };\n        transport.once(\"open\", onTransportOpen);\n        transport.once(\"error\", onerror);\n        transport.once(\"close\", onTransportClose);\n        this.once(\"close\", onclose);\n        this.once(\"upgrading\", onupgrade);\n        if (this.upgrades.indexOf(\"webtransport\") !== -1 &&\n            name !== \"webtransport\") {\n            // favor WebTransport\n            this.setTimeoutFn(() => {\n                if (!failed) {\n                    transport.open();\n                }\n            }, 200);\n        }\n        else {\n            transport.open();\n        }\n    }\n    /**\n     * Called when connection is deemed open.\n     *\n     * @private\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        Socket.priorWebsocketSuccess = \"websocket\" === this.transport.name;\n        this.emitReserved(\"open\");\n        this.flush();\n        // we check for `readyState` in case an `open`\n        // listener already closed the socket\n        if (\"open\" === this.readyState && this.opts.upgrade) {\n            let i = 0;\n            const l = this.upgrades.length;\n            for (; i < l; i++) {\n                this.probe(this.upgrades[i]);\n            }\n        }\n    }\n    /**\n     * Handles a packet.\n     *\n     * @private\n     */\n    onPacket(packet) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            this.emitReserved(\"packet\", packet);\n            // Socket is live - any packet counts\n            this.emitReserved(\"heartbeat\");\n            this.resetPingTimeout();\n            switch (packet.type) {\n                case \"open\":\n                    this.onHandshake(JSON.parse(packet.data));\n                    break;\n                case \"ping\":\n                    this.sendPacket(\"pong\");\n                    this.emitReserved(\"ping\");\n                    this.emitReserved(\"pong\");\n                    break;\n                case \"error\":\n                    const err = new Error(\"server error\");\n                    // @ts-ignore\n                    err.code = packet.data;\n                    this.onError(err);\n                    break;\n                case \"message\":\n                    this.emitReserved(\"data\", packet.data);\n                    this.emitReserved(\"message\", packet.data);\n                    break;\n            }\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon handshake completion.\n     *\n     * @param {Object} data - handshake obj\n     * @private\n     */\n    onHandshake(data) {\n        this.emitReserved(\"handshake\", data);\n        this.id = data.sid;\n        this.transport.query.sid = data.sid;\n        this.upgrades = this.filterUpgrades(data.upgrades);\n        this.pingInterval = data.pingInterval;\n        this.pingTimeout = data.pingTimeout;\n        this.maxPayload = data.maxPayload;\n        this.onOpen();\n        // In case open handler closes socket\n        if (\"closed\" === this.readyState)\n            return;\n        this.resetPingTimeout();\n    }\n    /**\n     * Sets and resets ping timeout timer based on server pings.\n     *\n     * @private\n     */\n    resetPingTimeout() {\n        this.clearTimeoutFn(this.pingTimeoutTimer);\n        this.pingTimeoutTimer = this.setTimeoutFn(() => {\n            this.onClose(\"ping timeout\");\n        }, this.pingInterval + this.pingTimeout);\n        if (this.opts.autoUnref) {\n            this.pingTimeoutTimer.unref();\n        }\n    }\n    /**\n     * Called on `drain` event\n     *\n     * @private\n     */\n    onDrain() {\n        this.writeBuffer.splice(0, this.prevBufferLen);\n        // setting prevBufferLen = 0 is very important\n        // for example, when upgrading, upgrade packet is sent over,\n        // and a nonzero prevBufferLen could cause problems on `drain`\n        this.prevBufferLen = 0;\n        if (0 === this.writeBuffer.length) {\n            this.emitReserved(\"drain\");\n        }\n        else {\n            this.flush();\n        }\n    }\n    /**\n     * Flush write buffers.\n     *\n     * @private\n     */\n    flush() {\n        if (\"closed\" !== this.readyState &&\n            this.transport.writable &&\n            !this.upgrading &&\n            this.writeBuffer.length) {\n            const packets = this.getWritablePackets();\n            this.transport.send(packets);\n            // keep track of current length of writeBuffer\n            // splice writeBuffer and callbackBuffer on `drain`\n            this.prevBufferLen = packets.length;\n            this.emitReserved(\"flush\");\n        }\n    }\n    /**\n     * Ensure the encoded size of the writeBuffer is below the maxPayload value sent by the server (only for HTTP\n     * long-polling)\n     *\n     * @private\n     */\n    getWritablePackets() {\n        const shouldCheckPayloadSize = this.maxPayload &&\n            this.transport.name === \"polling\" &&\n            this.writeBuffer.length > 1;\n        if (!shouldCheckPayloadSize) {\n            return this.writeBuffer;\n        }\n        let payloadSize = 1; // first packet type\n        for (let i = 0; i < this.writeBuffer.length; i++) {\n            const data = this.writeBuffer[i].data;\n            if (data) {\n                payloadSize += byteLength(data);\n            }\n            if (i > 0 && payloadSize > this.maxPayload) {\n                return this.writeBuffer.slice(0, i);\n            }\n            payloadSize += 2; // separator + packet type\n        }\n        return this.writeBuffer;\n    }\n    /**\n     * Sends a message.\n     *\n     * @param {String} msg - message.\n     * @param {Object} options.\n     * @param {Function} callback function.\n     * @return {Socket} for chaining.\n     */\n    write(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    send(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param {String} type: packet type.\n     * @param {String} data.\n     * @param {Object} options.\n     * @param {Function} fn - callback function.\n     * @private\n     */\n    sendPacket(type, data, options, fn) {\n        if (\"function\" === typeof data) {\n            fn = data;\n            data = undefined;\n        }\n        if (\"function\" === typeof options) {\n            fn = options;\n            options = null;\n        }\n        if (\"closing\" === this.readyState || \"closed\" === this.readyState) {\n            return;\n        }\n        options = options || {};\n        options.compress = false !== options.compress;\n        const packet = {\n            type: type,\n            data: data,\n            options: options,\n        };\n        this.emitReserved(\"packetCreate\", packet);\n        this.writeBuffer.push(packet);\n        if (fn)\n            this.once(\"flush\", fn);\n        this.flush();\n    }\n    /**\n     * Closes the connection.\n     */\n    close() {\n        const close = () => {\n            this.onClose(\"forced close\");\n            this.transport.close();\n        };\n        const cleanupAndClose = () => {\n            this.off(\"upgrade\", cleanupAndClose);\n            this.off(\"upgradeError\", cleanupAndClose);\n            close();\n        };\n        const waitForUpgrade = () => {\n            // wait for upgrade to finish since we can't send packets while pausing a transport\n            this.once(\"upgrade\", cleanupAndClose);\n            this.once(\"upgradeError\", cleanupAndClose);\n        };\n        if (\"opening\" === this.readyState || \"open\" === this.readyState) {\n            this.readyState = \"closing\";\n            if (this.writeBuffer.length) {\n                this.once(\"drain\", () => {\n                    if (this.upgrading) {\n                        waitForUpgrade();\n                    }\n                    else {\n                        close();\n                    }\n                });\n            }\n            else if (this.upgrading) {\n                waitForUpgrade();\n            }\n            else {\n                close();\n            }\n        }\n        return this;\n    }\n    /**\n     * Called upon transport error\n     *\n     * @private\n     */\n    onError(err) {\n        Socket.priorWebsocketSuccess = false;\n        this.emitReserved(\"error\", err);\n        this.onClose(\"transport error\", err);\n    }\n    /**\n     * Called upon transport close.\n     *\n     * @private\n     */\n    onClose(reason, description) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            // clear timers\n            this.clearTimeoutFn(this.pingTimeoutTimer);\n            // stop event from firing again for transport\n            this.transport.removeAllListeners(\"close\");\n            // ensure transport won't stay open\n            this.transport.close();\n            // ignore further transport communication\n            this.transport.removeAllListeners();\n            if (typeof removeEventListener === \"function\") {\n                removeEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n                removeEventListener(\"offline\", this.offlineEventListener, false);\n            }\n            // set ready state\n            this.readyState = \"closed\";\n            // clear session id\n            this.id = null;\n            // emit close event\n            this.emitReserved(\"close\", reason, description);\n            // clean buffers after, so users can still\n            // grab the buffers on `close` event\n            this.writeBuffer = [];\n            this.prevBufferLen = 0;\n        }\n    }\n    /**\n     * Filters upgrades, returning only those matching client transports.\n     *\n     * @param {Array} upgrades - server upgrades\n     * @private\n     */\n    filterUpgrades(upgrades) {\n        const filteredUpgrades = [];\n        let i = 0;\n        const j = upgrades.length;\n        for (; i < j; i++) {\n            if (~this.transports.indexOf(upgrades[i]))\n                filteredUpgrades.push(upgrades[i]);\n        }\n        return filteredUpgrades;\n    }\n}\nSocket.protocol = protocol;\n", "import { Socket } from \"./socket.js\";\nexport { Socket };\nexport const protocol = Socket.protocol;\nexport { Transport, TransportError } from \"./transport.js\";\nexport { transports } from \"./transports/index.js\";\nexport { installTimerFunctions } from \"./util.js\";\nexport { parse } from \"./contrib/parseuri.js\";\nexport { nextTick } from \"./transports/websocket-constructor.js\";\n", "import { parse } from \"engine.io-client\";\n/**\n * URL parser.\n *\n * @param uri - url\n * @param path - the request path of the connection\n * @param loc - An object meant to mimic window.location.\n *        Defaults to window.location.\n * @public\n */\nexport function url(uri, path = \"\", loc) {\n    let obj = uri;\n    // default to window.location\n    loc = loc || (typeof location !== \"undefined\" && location);\n    if (null == uri)\n        uri = loc.protocol + \"//\" + loc.host;\n    // relative path support\n    if (typeof uri === \"string\") {\n        if (\"/\" === uri.charAt(0)) {\n            if (\"/\" === uri.charAt(1)) {\n                uri = loc.protocol + uri;\n            }\n            else {\n                uri = loc.host + uri;\n            }\n        }\n        if (!/^(https?|wss?):\\/\\//.test(uri)) {\n            if (\"undefined\" !== typeof loc) {\n                uri = loc.protocol + \"//\" + uri;\n            }\n            else {\n                uri = \"https://\" + uri;\n            }\n        }\n        // parse\n        obj = parse(uri);\n    }\n    // make sure we treat `localhost:80` and `localhost` equally\n    if (!obj.port) {\n        if (/^(http|ws)$/.test(obj.protocol)) {\n            obj.port = \"80\";\n        }\n        else if (/^(http|ws)s$/.test(obj.protocol)) {\n            obj.port = \"443\";\n        }\n    }\n    obj.path = obj.path || \"/\";\n    const ipv6 = obj.host.indexOf(\":\") !== -1;\n    const host = ipv6 ? \"[\" + obj.host + \"]\" : obj.host;\n    // define unique id\n    obj.id = obj.protocol + \"://\" + host + \":\" + obj.port + path;\n    // define href\n    obj.href =\n        obj.protocol +\n            \"://\" +\n            host +\n            (loc && loc.port === obj.port ? \"\" : \":\" + obj.port);\n    return obj;\n}\n", "import { Emitter } from \"@socket.io/component-emitter\";\nimport { deconstructPacket, reconstructPacket } from \"./binary.js\";\nimport { isBinary, hasBinary } from \"./is-binary.js\";\n/**\n * These strings must not be used as event names, as they have a special meaning.\n */\nconst RESERVED_EVENTS = [\n    \"connect\",\n    \"connect_error\",\n    \"disconnect\",\n    \"disconnecting\",\n    \"newListener\",\n    \"removeListener\", // used by the Node.js EventEmitter\n];\n/**\n * Protocol version.\n *\n * @public\n */\nexport const protocol = 5;\nexport var PacketType;\n(function (PacketType) {\n    PacketType[PacketType[\"CONNECT\"] = 0] = \"CONNECT\";\n    PacketType[PacketType[\"DISCONNECT\"] = 1] = \"DISCONNECT\";\n    PacketType[PacketType[\"EVENT\"] = 2] = \"EVENT\";\n    PacketType[PacketType[\"ACK\"] = 3] = \"ACK\";\n    PacketType[PacketType[\"CONNECT_ERROR\"] = 4] = \"CONNECT_ERROR\";\n    PacketType[PacketType[\"BINARY_EVENT\"] = 5] = \"BINARY_EVENT\";\n    PacketType[PacketType[\"BINARY_ACK\"] = 6] = \"BINARY_ACK\";\n})(PacketType || (PacketType = {}));\n/**\n * A socket.io Encoder instance\n */\nexport class Encoder {\n    /**\n     * Encoder constructor\n     *\n     * @param {function} replacer - custom replacer to pass down to JSON.parse\n     */\n    constructor(replacer) {\n        this.replacer = replacer;\n    }\n    /**\n     * Encode a packet as a single string if non-binary, or as a\n     * buffer sequence, depending on packet type.\n     *\n     * @param {Object} obj - packet object\n     */\n    encode(obj) {\n        if (obj.type === PacketType.EVENT || obj.type === PacketType.ACK) {\n            if (hasBinary(obj)) {\n                return this.encodeAsBinary({\n                    type: obj.type === PacketType.EVENT\n                        ? PacketType.BINARY_EVENT\n                        : PacketType.BINARY_ACK,\n                    nsp: obj.nsp,\n                    data: obj.data,\n                    id: obj.id,\n                });\n            }\n        }\n        return [this.encodeAsString(obj)];\n    }\n    /**\n     * Encode packet as string.\n     */\n    encodeAsString(obj) {\n        // first is type\n        let str = \"\" + obj.type;\n        // attachments if we have them\n        if (obj.type === PacketType.BINARY_EVENT ||\n            obj.type === PacketType.BINARY_ACK) {\n            str += obj.attachments + \"-\";\n        }\n        // if we have a namespace other than `/`\n        // we append it followed by a comma `,`\n        if (obj.nsp && \"/\" !== obj.nsp) {\n            str += obj.nsp + \",\";\n        }\n        // immediately followed by the id\n        if (null != obj.id) {\n            str += obj.id;\n        }\n        // json data\n        if (null != obj.data) {\n            str += JSON.stringify(obj.data, this.replacer);\n        }\n        return str;\n    }\n    /**\n     * Encode packet as 'buffer sequence' by removing blobs, and\n     * deconstructing packet into object with placeholders and\n     * a list of buffers.\n     */\n    encodeAsBinary(obj) {\n        const deconstruction = deconstructPacket(obj);\n        const pack = this.encodeAsString(deconstruction.packet);\n        const buffers = deconstruction.buffers;\n        buffers.unshift(pack); // add packet info to beginning of data list\n        return buffers; // write all the buffers\n    }\n}\n// see https://stackoverflow.com/questions/8511281/check-if-a-value-is-an-object-in-javascript\nfunction isObject(value) {\n    return Object.prototype.toString.call(value) === \"[object Object]\";\n}\n/**\n * A socket.io Decoder instance\n *\n * @return {Object} decoder\n */\nexport class Decoder extends Emitter {\n    /**\n     * Decoder constructor\n     *\n     * @param {function} reviver - custom reviver to pass down to JSON.stringify\n     */\n    constructor(reviver) {\n        super();\n        this.reviver = reviver;\n    }\n    /**\n     * Decodes an encoded packet string into packet JSON.\n     *\n     * @param {String} obj - encoded packet\n     */\n    add(obj) {\n        let packet;\n        if (typeof obj === \"string\") {\n            if (this.reconstructor) {\n                throw new Error(\"got plaintext data when reconstructing a packet\");\n            }\n            packet = this.decodeString(obj);\n            const isBinaryEvent = packet.type === PacketType.BINARY_EVENT;\n            if (isBinaryEvent || packet.type === PacketType.BINARY_ACK) {\n                packet.type = isBinaryEvent ? PacketType.EVENT : PacketType.ACK;\n                // binary packet's json\n                this.reconstructor = new BinaryReconstructor(packet);\n                // no attachments, labeled binary but no binary data to follow\n                if (packet.attachments === 0) {\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n            else {\n                // non-binary full packet\n                super.emitReserved(\"decoded\", packet);\n            }\n        }\n        else if (isBinary(obj) || obj.base64) {\n            // raw binary data\n            if (!this.reconstructor) {\n                throw new Error(\"got binary data when not reconstructing a packet\");\n            }\n            else {\n                packet = this.reconstructor.takeBinaryData(obj);\n                if (packet) {\n                    // received final buffer\n                    this.reconstructor = null;\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n        }\n        else {\n            throw new Error(\"Unknown type: \" + obj);\n        }\n    }\n    /**\n     * Decode a packet String (JSON data)\n     *\n     * @param {String} str\n     * @return {Object} packet\n     */\n    decodeString(str) {\n        let i = 0;\n        // look up type\n        const p = {\n            type: Number(str.charAt(0)),\n        };\n        if (PacketType[p.type] === undefined) {\n            throw new Error(\"unknown packet type \" + p.type);\n        }\n        // look up attachments if type binary\n        if (p.type === PacketType.BINARY_EVENT ||\n            p.type === PacketType.BINARY_ACK) {\n            const start = i + 1;\n            while (str.charAt(++i) !== \"-\" && i != str.length) { }\n            const buf = str.substring(start, i);\n            if (buf != Number(buf) || str.charAt(i) !== \"-\") {\n                throw new Error(\"Illegal attachments\");\n            }\n            p.attachments = Number(buf);\n        }\n        // look up namespace (if any)\n        if (\"/\" === str.charAt(i + 1)) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (\",\" === c)\n                    break;\n                if (i === str.length)\n                    break;\n            }\n            p.nsp = str.substring(start, i);\n        }\n        else {\n            p.nsp = \"/\";\n        }\n        // look up id\n        const next = str.charAt(i + 1);\n        if (\"\" !== next && Number(next) == next) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (null == c || Number(c) != c) {\n                    --i;\n                    break;\n                }\n                if (i === str.length)\n                    break;\n            }\n            p.id = Number(str.substring(start, i + 1));\n        }\n        // look up json data\n        if (str.charAt(++i)) {\n            const payload = this.tryParse(str.substr(i));\n            if (Decoder.isPayloadValid(p.type, payload)) {\n                p.data = payload;\n            }\n            else {\n                throw new Error(\"invalid payload\");\n            }\n        }\n        return p;\n    }\n    tryParse(str) {\n        try {\n            return JSON.parse(str, this.reviver);\n        }\n        catch (e) {\n            return false;\n        }\n    }\n    static isPayloadValid(type, payload) {\n        switch (type) {\n            case PacketType.CONNECT:\n                return isObject(payload);\n            case PacketType.DISCONNECT:\n                return payload === undefined;\n            case PacketType.CONNECT_ERROR:\n                return typeof payload === \"string\" || isObject(payload);\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                return (Array.isArray(payload) &&\n                    (typeof payload[0] === \"number\" ||\n                        (typeof payload[0] === \"string\" &&\n                            RESERVED_EVENTS.indexOf(payload[0]) === -1)));\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                return Array.isArray(payload);\n        }\n    }\n    /**\n     * Deallocates a parser's resources\n     */\n    destroy() {\n        if (this.reconstructor) {\n            this.reconstructor.finishedReconstruction();\n            this.reconstructor = null;\n        }\n    }\n}\n/**\n * A manager of a binary event's 'buffer sequence'. Should\n * be constructed whenever a packet of type BINARY_EVENT is\n * decoded.\n *\n * @param {Object} packet\n * @return {BinaryReconstructor} initialized reconstructor\n */\nclass BinaryReconstructor {\n    constructor(packet) {\n        this.packet = packet;\n        this.buffers = [];\n        this.reconPack = packet;\n    }\n    /**\n     * Method to be called when binary data received from connection\n     * after a BINARY_EVENT packet.\n     *\n     * @param {Buffer | ArrayBuffer} binData - the raw binary data received\n     * @return {null | Object} returns null if more binary data is expected or\n     *   a reconstructed packet object if all buffers have been received.\n     */\n    takeBinaryData(binData) {\n        this.buffers.push(binData);\n        if (this.buffers.length === this.reconPack.attachments) {\n            // done with buffer list\n            const packet = reconstructPacket(this.reconPack, this.buffers);\n            this.finishedReconstruction();\n            return packet;\n        }\n        return null;\n    }\n    /**\n     * Cleans up binary packet reconstruction variables.\n     */\n    finishedReconstruction() {\n        this.reconPack = null;\n        this.buffers = [];\n    }\n}\n", "const withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nconst isView = (obj) => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj.buffer instanceof ArrayBuffer;\n};\nconst toString = Object.prototype.toString;\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeFile = typeof File === \"function\" ||\n    (typeof File !== \"undefined\" &&\n        toString.call(File) === \"[object FileConstructor]\");\n/**\n * Returns true if obj is a Buffer, an ArrayBuffer, a Blob or a File.\n *\n * @private\n */\nexport function isBinary(obj) {\n    return ((withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj))) ||\n        (withNativeBlob && obj instanceof Blob) ||\n        (withNativeFile && obj instanceof File));\n}\nexport function hasBinary(obj, toJSON) {\n    if (!obj || typeof obj !== \"object\") {\n        return false;\n    }\n    if (Array.isArray(obj)) {\n        for (let i = 0, l = obj.length; i < l; i++) {\n            if (hasBinary(obj[i])) {\n                return true;\n            }\n        }\n        return false;\n    }\n    if (isBinary(obj)) {\n        return true;\n    }\n    if (obj.toJSON &&\n        typeof obj.toJSON === \"function\" &&\n        arguments.length === 1) {\n        return hasBinary(obj.toJSON(), true);\n    }\n    for (const key in obj) {\n        if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {\n            return true;\n        }\n    }\n    return false;\n}\n", "import { isBinary } from \"./is-binary.js\";\n/**\n * Replaces every Buffer | ArrayBuffer | Blob | File in packet with a numbered placeholder.\n *\n * @param {Object} packet - socket.io event packet\n * @return {Object} with deconstructed packet and list of buffers\n * @public\n */\nexport function deconstructPacket(packet) {\n    const buffers = [];\n    const packetData = packet.data;\n    const pack = packet;\n    pack.data = _deconstructPacket(packetData, buffers);\n    pack.attachments = buffers.length; // number of binary 'attachments'\n    return { packet: pack, buffers: buffers };\n}\nfunction _deconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (isBinary(data)) {\n        const placeholder = { _placeholder: true, num: buffers.length };\n        buffers.push(data);\n        return placeholder;\n    }\n    else if (Array.isArray(data)) {\n        const newData = new Array(data.length);\n        for (let i = 0; i < data.length; i++) {\n            newData[i] = _deconstructPacket(data[i], buffers);\n        }\n        return newData;\n    }\n    else if (typeof data === \"object\" && !(data instanceof Date)) {\n        const newData = {};\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                newData[key] = _deconstructPacket(data[key], buffers);\n            }\n        }\n        return newData;\n    }\n    return data;\n}\n/**\n * Reconstructs a binary packet from its placeholder packet and buffers\n *\n * @param {Object} packet - event packet with placeholders\n * @param {Array} buffers - binary buffers to put in placeholder positions\n * @return {Object} reconstructed packet\n * @public\n */\nexport function reconstructPacket(packet, buffers) {\n    packet.data = _reconstructPacket(packet.data, buffers);\n    delete packet.attachments; // no longer useful\n    return packet;\n}\nfunction _reconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (data && data._placeholder === true) {\n        const isIndexValid = typeof data.num === \"number\" &&\n            data.num >= 0 &&\n            data.num < buffers.length;\n        if (isIndexValid) {\n            return buffers[data.num]; // appropriate buffer (should be natural order anyway)\n        }\n        else {\n            throw new Error(\"illegal attachments\");\n        }\n    }\n    else if (Array.isArray(data)) {\n        for (let i = 0; i < data.length; i++) {\n            data[i] = _reconstructPacket(data[i], buffers);\n        }\n    }\n    else if (typeof data === \"object\") {\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                data[key] = _reconstructPacket(data[key], buffers);\n            }\n        }\n    }\n    return data;\n}\n", "export function on(obj, ev, fn) {\n    obj.on(ev, fn);\n    return function subDestroy() {\n        obj.off(ev, fn);\n    };\n}\n", "import { PacketType } from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\n/**\n * Internal events.\n * These events can't be emitted by the user.\n */\nconst RESERVED_EVENTS = Object.freeze({\n    connect: 1,\n    connect_error: 1,\n    disconnect: 1,\n    disconnecting: 1,\n    // EventEmitter reserved events: https://nodejs.org/api/events.html#events_event_newlistener\n    newListener: 1,\n    removeListener: 1,\n});\n/**\n * A Socket is the fundamental class for interacting with the server.\n *\n * A Socket belongs to a certain Namespace (by default /) and uses an underlying {@link Manager} to communicate.\n *\n * @example\n * const socket = io();\n *\n * socket.on(\"connect\", () => {\n *   console.log(\"connected\");\n * });\n *\n * // send an event to the server\n * socket.emit(\"foo\", \"bar\");\n *\n * socket.on(\"foobar\", () => {\n *   // an event was received from the server\n * });\n *\n * // upon disconnection\n * socket.on(\"disconnect\", (reason) => {\n *   console.log(`disconnected due to ${reason}`);\n * });\n */\nexport class Socket extends Emitter {\n    /**\n     * `Socket` constructor.\n     */\n    constructor(io, nsp, opts) {\n        super();\n        /**\n         * Whether the socket is currently connected to the server.\n         *\n         * @example\n         * const socket = io();\n         *\n         * socket.on(\"connect\", () => {\n         *   console.log(socket.connected); // true\n         * });\n         *\n         * socket.on(\"disconnect\", () => {\n         *   console.log(socket.connected); // false\n         * });\n         */\n        this.connected = false;\n        /**\n         * Whether the connection state was recovered after a temporary disconnection. In that case, any missed packets will\n         * be transmitted by the server.\n         */\n        this.recovered = false;\n        /**\n         * Buffer for packets received before the CONNECT packet\n         */\n        this.receiveBuffer = [];\n        /**\n         * Buffer for packets that will be sent once the socket is connected\n         */\n        this.sendBuffer = [];\n        /**\n         * The queue of packets to be sent with retry in case of failure.\n         *\n         * Packets are sent one by one, each waiting for the server acknowledgement, in order to guarantee the delivery order.\n         * @private\n         */\n        this._queue = [];\n        /**\n         * A sequence to generate the ID of the {@link QueuedPacket}.\n         * @private\n         */\n        this._queueSeq = 0;\n        this.ids = 0;\n        this.acks = {};\n        this.flags = {};\n        this.io = io;\n        this.nsp = nsp;\n        if (opts && opts.auth) {\n            this.auth = opts.auth;\n        }\n        this._opts = Object.assign({}, opts);\n        if (this.io._autoConnect)\n            this.open();\n    }\n    /**\n     * Whether the socket is currently disconnected\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"connect\", () => {\n     *   console.log(socket.disconnected); // false\n     * });\n     *\n     * socket.on(\"disconnect\", () => {\n     *   console.log(socket.disconnected); // true\n     * });\n     */\n    get disconnected() {\n        return !this.connected;\n    }\n    /**\n     * Subscribe to open, close and packet events\n     *\n     * @private\n     */\n    subEvents() {\n        if (this.subs)\n            return;\n        const io = this.io;\n        this.subs = [\n            on(io, \"open\", this.onopen.bind(this)),\n            on(io, \"packet\", this.onpacket.bind(this)),\n            on(io, \"error\", this.onerror.bind(this)),\n            on(io, \"close\", this.onclose.bind(this)),\n        ];\n    }\n    /**\n     * Whether the Socket will try to reconnect when its Manager connects or reconnects.\n     *\n     * @example\n     * const socket = io();\n     *\n     * console.log(socket.active); // true\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   if (reason === \"io server disconnect\") {\n     *     // the disconnection was initiated by the server, you need to manually reconnect\n     *     console.log(socket.active); // false\n     *   }\n     *   // else the socket will automatically try to reconnect\n     *   console.log(socket.active); // true\n     * });\n     */\n    get active() {\n        return !!this.subs;\n    }\n    /**\n     * \"Opens\" the socket.\n     *\n     * @example\n     * const socket = io({\n     *   autoConnect: false\n     * });\n     *\n     * socket.connect();\n     */\n    connect() {\n        if (this.connected)\n            return this;\n        this.subEvents();\n        if (!this.io[\"_reconnecting\"])\n            this.io.open(); // ensure open\n        if (\"open\" === this.io._readyState)\n            this.onopen();\n        return this;\n    }\n    /**\n     * Alias for {@link connect()}.\n     */\n    open() {\n        return this.connect();\n    }\n    /**\n     * Sends a `message` event.\n     *\n     * This method mimics the WebSocket.send() method.\n     *\n     * @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send\n     *\n     * @example\n     * socket.send(\"hello\");\n     *\n     * // this is equivalent to\n     * socket.emit(\"message\", \"hello\");\n     *\n     * @return self\n     */\n    send(...args) {\n        args.unshift(\"message\");\n        this.emit.apply(this, args);\n        return this;\n    }\n    /**\n     * Override `emit`.\n     * If the event is in `events`, it's emitted normally.\n     *\n     * @example\n     * socket.emit(\"hello\", \"world\");\n     *\n     * // all serializable datastructures are supported (no need to call JSON.stringify)\n     * socket.emit(\"hello\", 1, \"2\", { 3: [\"4\"], 5: Uint8Array.from([6]) });\n     *\n     * // with an acknowledgement from the server\n     * socket.emit(\"hello\", \"world\", (val) => {\n     *   // ...\n     * });\n     *\n     * @return self\n     */\n    emit(ev, ...args) {\n        if (RESERVED_EVENTS.hasOwnProperty(ev)) {\n            throw new Error('\"' + ev.toString() + '\" is a reserved event name');\n        }\n        args.unshift(ev);\n        if (this._opts.retries && !this.flags.fromQueue && !this.flags.volatile) {\n            this._addToQueue(args);\n            return this;\n        }\n        const packet = {\n            type: PacketType.EVENT,\n            data: args,\n        };\n        packet.options = {};\n        packet.options.compress = this.flags.compress !== false;\n        // event ack callback\n        if (\"function\" === typeof args[args.length - 1]) {\n            const id = this.ids++;\n            const ack = args.pop();\n            this._registerAckCallback(id, ack);\n            packet.id = id;\n        }\n        const isTransportWritable = this.io.engine &&\n            this.io.engine.transport &&\n            this.io.engine.transport.writable;\n        const discardPacket = this.flags.volatile && (!isTransportWritable || !this.connected);\n        if (discardPacket) {\n        }\n        else if (this.connected) {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        }\n        else {\n            this.sendBuffer.push(packet);\n        }\n        this.flags = {};\n        return this;\n    }\n    /**\n     * @private\n     */\n    _registerAckCallback(id, ack) {\n        var _a;\n        const timeout = (_a = this.flags.timeout) !== null && _a !== void 0 ? _a : this._opts.ackTimeout;\n        if (timeout === undefined) {\n            this.acks[id] = ack;\n            return;\n        }\n        // @ts-ignore\n        const timer = this.io.setTimeoutFn(() => {\n            delete this.acks[id];\n            for (let i = 0; i < this.sendBuffer.length; i++) {\n                if (this.sendBuffer[i].id === id) {\n                    this.sendBuffer.splice(i, 1);\n                }\n            }\n            ack.call(this, new Error(\"operation has timed out\"));\n        }, timeout);\n        this.acks[id] = (...args) => {\n            // @ts-ignore\n            this.io.clearTimeoutFn(timer);\n            ack.apply(this, [null, ...args]);\n        };\n    }\n    /**\n     * Emits an event and waits for an acknowledgement\n     *\n     * @example\n     * // without timeout\n     * const response = await socket.emitWithAck(\"hello\", \"world\");\n     *\n     * // with a specific timeout\n     * try {\n     *   const response = await socket.timeout(1000).emitWithAck(\"hello\", \"world\");\n     * } catch (err) {\n     *   // the server did not acknowledge the event in the given delay\n     * }\n     *\n     * @return a Promise that will be fulfilled when the server acknowledges the event\n     */\n    emitWithAck(ev, ...args) {\n        // the timeout flag is optional\n        const withErr = this.flags.timeout !== undefined || this._opts.ackTimeout !== undefined;\n        return new Promise((resolve, reject) => {\n            args.push((arg1, arg2) => {\n                if (withErr) {\n                    return arg1 ? reject(arg1) : resolve(arg2);\n                }\n                else {\n                    return resolve(arg1);\n                }\n            });\n            this.emit(ev, ...args);\n        });\n    }\n    /**\n     * Add the packet to the queue.\n     * @param args\n     * @private\n     */\n    _addToQueue(args) {\n        let ack;\n        if (typeof args[args.length - 1] === \"function\") {\n            ack = args.pop();\n        }\n        const packet = {\n            id: this._queueSeq++,\n            tryCount: 0,\n            pending: false,\n            args,\n            flags: Object.assign({ fromQueue: true }, this.flags),\n        };\n        args.push((err, ...responseArgs) => {\n            if (packet !== this._queue[0]) {\n                // the packet has already been acknowledged\n                return;\n            }\n            const hasError = err !== null;\n            if (hasError) {\n                if (packet.tryCount > this._opts.retries) {\n                    this._queue.shift();\n                    if (ack) {\n                        ack(err);\n                    }\n                }\n            }\n            else {\n                this._queue.shift();\n                if (ack) {\n                    ack(null, ...responseArgs);\n                }\n            }\n            packet.pending = false;\n            return this._drainQueue();\n        });\n        this._queue.push(packet);\n        this._drainQueue();\n    }\n    /**\n     * Send the first packet of the queue, and wait for an acknowledgement from the server.\n     * @param force - whether to resend a packet that has not been acknowledged yet\n     *\n     * @private\n     */\n    _drainQueue(force = false) {\n        if (!this.connected || this._queue.length === 0) {\n            return;\n        }\n        const packet = this._queue[0];\n        if (packet.pending && !force) {\n            return;\n        }\n        packet.pending = true;\n        packet.tryCount++;\n        this.flags = packet.flags;\n        this.emit.apply(this, packet.args);\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param packet\n     * @private\n     */\n    packet(packet) {\n        packet.nsp = this.nsp;\n        this.io._packet(packet);\n    }\n    /**\n     * Called upon engine `open`.\n     *\n     * @private\n     */\n    onopen() {\n        if (typeof this.auth == \"function\") {\n            this.auth((data) => {\n                this._sendConnectPacket(data);\n            });\n        }\n        else {\n            this._sendConnectPacket(this.auth);\n        }\n    }\n    /**\n     * Sends a CONNECT packet to initiate the Socket.IO session.\n     *\n     * @param data\n     * @private\n     */\n    _sendConnectPacket(data) {\n        this.packet({\n            type: PacketType.CONNECT,\n            data: this._pid\n                ? Object.assign({ pid: this._pid, offset: this._lastOffset }, data)\n                : data,\n        });\n    }\n    /**\n     * Called upon engine or manager `error`.\n     *\n     * @param err\n     * @private\n     */\n    onerror(err) {\n        if (!this.connected) {\n            this.emitReserved(\"connect_error\", err);\n        }\n    }\n    /**\n     * Called upon engine `close`.\n     *\n     * @param reason\n     * @param description\n     * @private\n     */\n    onclose(reason, description) {\n        this.connected = false;\n        delete this.id;\n        this.emitReserved(\"disconnect\", reason, description);\n    }\n    /**\n     * Called with socket packet.\n     *\n     * @param packet\n     * @private\n     */\n    onpacket(packet) {\n        const sameNamespace = packet.nsp === this.nsp;\n        if (!sameNamespace)\n            return;\n        switch (packet.type) {\n            case PacketType.CONNECT:\n                if (packet.data && packet.data.sid) {\n                    this.onconnect(packet.data.sid, packet.data.pid);\n                }\n                else {\n                    this.emitReserved(\"connect_error\", new Error(\"It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)\"));\n                }\n                break;\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                this.onevent(packet);\n                break;\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                this.onack(packet);\n                break;\n            case PacketType.DISCONNECT:\n                this.ondisconnect();\n                break;\n            case PacketType.CONNECT_ERROR:\n                this.destroy();\n                const err = new Error(packet.data.message);\n                // @ts-ignore\n                err.data = packet.data.data;\n                this.emitReserved(\"connect_error\", err);\n                break;\n        }\n    }\n    /**\n     * Called upon a server event.\n     *\n     * @param packet\n     * @private\n     */\n    onevent(packet) {\n        const args = packet.data || [];\n        if (null != packet.id) {\n            args.push(this.ack(packet.id));\n        }\n        if (this.connected) {\n            this.emitEvent(args);\n        }\n        else {\n            this.receiveBuffer.push(Object.freeze(args));\n        }\n    }\n    emitEvent(args) {\n        if (this._anyListeners && this._anyListeners.length) {\n            const listeners = this._anyListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, args);\n            }\n        }\n        super.emit.apply(this, args);\n        if (this._pid && args.length && typeof args[args.length - 1] === \"string\") {\n            this._lastOffset = args[args.length - 1];\n        }\n    }\n    /**\n     * Produces an ack callback to emit with an event.\n     *\n     * @private\n     */\n    ack(id) {\n        const self = this;\n        let sent = false;\n        return function (...args) {\n            // prevent double callbacks\n            if (sent)\n                return;\n            sent = true;\n            self.packet({\n                type: PacketType.ACK,\n                id: id,\n                data: args,\n            });\n        };\n    }\n    /**\n     * Called upon a server acknowlegement.\n     *\n     * @param packet\n     * @private\n     */\n    onack(packet) {\n        const ack = this.acks[packet.id];\n        if (\"function\" === typeof ack) {\n            ack.apply(this, packet.data);\n            delete this.acks[packet.id];\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon server connect.\n     *\n     * @private\n     */\n    onconnect(id, pid) {\n        this.id = id;\n        this.recovered = pid && this._pid === pid;\n        this._pid = pid; // defined only if connection state recovery is enabled\n        this.connected = true;\n        this.emitBuffered();\n        this.emitReserved(\"connect\");\n        this._drainQueue(true);\n    }\n    /**\n     * Emit buffered events (received and emitted).\n     *\n     * @private\n     */\n    emitBuffered() {\n        this.receiveBuffer.forEach((args) => this.emitEvent(args));\n        this.receiveBuffer = [];\n        this.sendBuffer.forEach((packet) => {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        });\n        this.sendBuffer = [];\n    }\n    /**\n     * Called upon server disconnect.\n     *\n     * @private\n     */\n    ondisconnect() {\n        this.destroy();\n        this.onclose(\"io server disconnect\");\n    }\n    /**\n     * Called upon forced client/server side disconnections,\n     * this method ensures the manager stops tracking us and\n     * that reconnections don't get triggered for this.\n     *\n     * @private\n     */\n    destroy() {\n        if (this.subs) {\n            // clean subscriptions to avoid reconnections\n            this.subs.forEach((subDestroy) => subDestroy());\n            this.subs = undefined;\n        }\n        this.io[\"_destroy\"](this);\n    }\n    /**\n     * Disconnects the socket manually. In that case, the socket will not try to reconnect.\n     *\n     * If this is the last active Socket instance of the {@link Manager}, the low-level connection will be closed.\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   // console.log(reason); prints \"io client disconnect\"\n     * });\n     *\n     * socket.disconnect();\n     *\n     * @return self\n     */\n    disconnect() {\n        if (this.connected) {\n            this.packet({ type: PacketType.DISCONNECT });\n        }\n        // remove socket from pool\n        this.destroy();\n        if (this.connected) {\n            // fire events\n            this.onclose(\"io client disconnect\");\n        }\n        return this;\n    }\n    /**\n     * Alias for {@link disconnect()}.\n     *\n     * @return self\n     */\n    close() {\n        return this.disconnect();\n    }\n    /**\n     * Sets the compress flag.\n     *\n     * @example\n     * socket.compress(false).emit(\"hello\");\n     *\n     * @param compress - if `true`, compresses the sending data\n     * @return self\n     */\n    compress(compress) {\n        this.flags.compress = compress;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the event message will be dropped when this socket is not\n     * ready to send messages.\n     *\n     * @example\n     * socket.volatile.emit(\"hello\"); // the server may or may not receive it\n     *\n     * @returns self\n     */\n    get volatile() {\n        this.flags.volatile = true;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the callback will be called with an error when the\n     * given number of milliseconds have elapsed without an acknowledgement from the server:\n     *\n     * @example\n     * socket.timeout(5000).emit(\"my-event\", (err) => {\n     *   if (err) {\n     *     // the server did not acknowledge the event in the given delay\n     *   }\n     * });\n     *\n     * @returns self\n     */\n    timeout(timeout) {\n        this.flags.timeout = timeout;\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * @example\n     * socket.onAny((event, ...args) => {\n     *   console.log(`got ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * @example\n     * socket.prependAny((event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * }\n     *\n     * socket.onAny(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAny(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAny();\n     *\n     * @param listener\n     */\n    offAny(listener) {\n        if (!this._anyListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAny() {\n        return this._anyListeners || [];\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.onAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.prependAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * }\n     *\n     * socket.onAnyOutgoing(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAnyOutgoing(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAnyOutgoing();\n     *\n     * @param [listener] - the catch-all listener (optional)\n     */\n    offAnyOutgoing(listener) {\n        if (!this._anyOutgoingListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyOutgoingListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyOutgoingListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAnyOutgoing() {\n        return this._anyOutgoingListeners || [];\n    }\n    /**\n     * Notify the listeners for each packet sent\n     *\n     * @param packet\n     *\n     * @private\n     */\n    notifyOutgoingListeners(packet) {\n        if (this._anyOutgoingListeners && this._anyOutgoingListeners.length) {\n            const listeners = this._anyOutgoingListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, packet.data);\n            }\n        }\n    }\n}\n", "/**\n * Initialize backoff timer with `opts`.\n *\n * - `min` initial timeout in milliseconds [100]\n * - `max` max timeout [10000]\n * - `jitter` [0]\n * - `factor` [2]\n *\n * @param {Object} opts\n * @api public\n */\nexport function Backoff(opts) {\n    opts = opts || {};\n    this.ms = opts.min || 100;\n    this.max = opts.max || 10000;\n    this.factor = opts.factor || 2;\n    this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;\n    this.attempts = 0;\n}\n/**\n * Return the backoff duration.\n *\n * @return {Number}\n * @api public\n */\nBackoff.prototype.duration = function () {\n    var ms = this.ms * Math.pow(this.factor, this.attempts++);\n    if (this.jitter) {\n        var rand = Math.random();\n        var deviation = Math.floor(rand * this.jitter * ms);\n        ms = (Math.floor(rand * 10) & 1) == 0 ? ms - deviation : ms + deviation;\n    }\n    return Math.min(ms, this.max) | 0;\n};\n/**\n * Reset the number of attempts.\n *\n * @api public\n */\nBackoff.prototype.reset = function () {\n    this.attempts = 0;\n};\n/**\n * Set the minimum duration\n *\n * @api public\n */\nBackoff.prototype.setMin = function (min) {\n    this.ms = min;\n};\n/**\n * Set the maximum duration\n *\n * @api public\n */\nBackoff.prototype.setMax = function (max) {\n    this.max = max;\n};\n/**\n * Set the jitter\n *\n * @api public\n */\nBackoff.prototype.setJitter = function (jitter) {\n    this.jitter = jitter;\n};\n", "import { Socket as Engine, installTimerFunctions, nextTick, } from \"engine.io-client\";\nimport { Socket } from \"./socket.js\";\nimport * as parser from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Backoff } from \"./contrib/backo2.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\nexport class Manager extends Emitter {\n    constructor(uri, opts) {\n        var _a;\n        super();\n        this.nsps = {};\n        this.subs = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = undefined;\n        }\n        opts = opts || {};\n        opts.path = opts.path || \"/socket.io\";\n        this.opts = opts;\n        installTimerFunctions(this, opts);\n        this.reconnection(opts.reconnection !== false);\n        this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);\n        this.reconnectionDelay(opts.reconnectionDelay || 1000);\n        this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);\n        this.randomizationFactor((_a = opts.randomizationFactor) !== null && _a !== void 0 ? _a : 0.5);\n        this.backoff = new Backoff({\n            min: this.reconnectionDelay(),\n            max: this.reconnectionDelayMax(),\n            jitter: this.randomizationFactor(),\n        });\n        this.timeout(null == opts.timeout ? 20000 : opts.timeout);\n        this._readyState = \"closed\";\n        this.uri = uri;\n        const _parser = opts.parser || parser;\n        this.encoder = new _parser.Encoder();\n        this.decoder = new _parser.Decoder();\n        this._autoConnect = opts.autoConnect !== false;\n        if (this._autoConnect)\n            this.open();\n    }\n    reconnection(v) {\n        if (!arguments.length)\n            return this._reconnection;\n        this._reconnection = !!v;\n        return this;\n    }\n    reconnectionAttempts(v) {\n        if (v === undefined)\n            return this._reconnectionAttempts;\n        this._reconnectionAttempts = v;\n        return this;\n    }\n    reconnectionDelay(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelay;\n        this._reconnectionDelay = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMin(v);\n        return this;\n    }\n    randomizationFactor(v) {\n        var _a;\n        if (v === undefined)\n            return this._randomizationFactor;\n        this._randomizationFactor = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setJitter(v);\n        return this;\n    }\n    reconnectionDelayMax(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelayMax;\n        this._reconnectionDelayMax = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMax(v);\n        return this;\n    }\n    timeout(v) {\n        if (!arguments.length)\n            return this._timeout;\n        this._timeout = v;\n        return this;\n    }\n    /**\n     * Starts trying to reconnect if reconnection is enabled and we have not\n     * started reconnecting yet\n     *\n     * @private\n     */\n    maybeReconnectOnOpen() {\n        // Only try to reconnect if it's the first time we're connecting\n        if (!this._reconnecting &&\n            this._reconnection &&\n            this.backoff.attempts === 0) {\n            // keeps reconnection from firing twice for the same reconnection loop\n            this.reconnect();\n        }\n    }\n    /**\n     * Sets the current transport `socket`.\n     *\n     * @param {Function} fn - optional, callback\n     * @return self\n     * @public\n     */\n    open(fn) {\n        if (~this._readyState.indexOf(\"open\"))\n            return this;\n        this.engine = new Engine(this.uri, this.opts);\n        const socket = this.engine;\n        const self = this;\n        this._readyState = \"opening\";\n        this.skipReconnect = false;\n        // emit `open`\n        const openSubDestroy = on(socket, \"open\", function () {\n            self.onopen();\n            fn && fn();\n        });\n        const onError = (err) => {\n            this.cleanup();\n            this._readyState = \"closed\";\n            this.emitReserved(\"error\", err);\n            if (fn) {\n                fn(err);\n            }\n            else {\n                // Only do this if there is no fn to handle the error\n                this.maybeReconnectOnOpen();\n            }\n        };\n        // emit `error`\n        const errorSub = on(socket, \"error\", onError);\n        if (false !== this._timeout) {\n            const timeout = this._timeout;\n            // set timer\n            const timer = this.setTimeoutFn(() => {\n                openSubDestroy();\n                onError(new Error(\"timeout\"));\n                socket.close();\n            }, timeout);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n        this.subs.push(openSubDestroy);\n        this.subs.push(errorSub);\n        return this;\n    }\n    /**\n     * Alias for open()\n     *\n     * @return self\n     * @public\n     */\n    connect(fn) {\n        return this.open(fn);\n    }\n    /**\n     * Called upon transport open.\n     *\n     * @private\n     */\n    onopen() {\n        // clear old subs\n        this.cleanup();\n        // mark as open\n        this._readyState = \"open\";\n        this.emitReserved(\"open\");\n        // add new subs\n        const socket = this.engine;\n        this.subs.push(on(socket, \"ping\", this.onping.bind(this)), on(socket, \"data\", this.ondata.bind(this)), on(socket, \"error\", this.onerror.bind(this)), on(socket, \"close\", this.onclose.bind(this)), on(this.decoder, \"decoded\", this.ondecoded.bind(this)));\n    }\n    /**\n     * Called upon a ping.\n     *\n     * @private\n     */\n    onping() {\n        this.emitReserved(\"ping\");\n    }\n    /**\n     * Called with data.\n     *\n     * @private\n     */\n    ondata(data) {\n        try {\n            this.decoder.add(data);\n        }\n        catch (e) {\n            this.onclose(\"parse error\", e);\n        }\n    }\n    /**\n     * Called when parser fully decodes a packet.\n     *\n     * @private\n     */\n    ondecoded(packet) {\n        // the nextTick call prevents an exception in a user-provided event listener from triggering a disconnection due to a \"parse error\"\n        nextTick(() => {\n            this.emitReserved(\"packet\", packet);\n        }, this.setTimeoutFn);\n    }\n    /**\n     * Called upon socket error.\n     *\n     * @private\n     */\n    onerror(err) {\n        this.emitReserved(\"error\", err);\n    }\n    /**\n     * Creates a new socket for the given `nsp`.\n     *\n     * @return {Socket}\n     * @public\n     */\n    socket(nsp, opts) {\n        let socket = this.nsps[nsp];\n        if (!socket) {\n            socket = new Socket(this, nsp, opts);\n            this.nsps[nsp] = socket;\n        }\n        else if (this._autoConnect && !socket.active) {\n            socket.connect();\n        }\n        return socket;\n    }\n    /**\n     * Called upon a socket close.\n     *\n     * @param socket\n     * @private\n     */\n    _destroy(socket) {\n        const nsps = Object.keys(this.nsps);\n        for (const nsp of nsps) {\n            const socket = this.nsps[nsp];\n            if (socket.active) {\n                return;\n            }\n        }\n        this._close();\n    }\n    /**\n     * Writes a packet.\n     *\n     * @param packet\n     * @private\n     */\n    _packet(packet) {\n        const encodedPackets = this.encoder.encode(packet);\n        for (let i = 0; i < encodedPackets.length; i++) {\n            this.engine.write(encodedPackets[i], packet.options);\n        }\n    }\n    /**\n     * Clean up transport subscriptions and packet buffer.\n     *\n     * @private\n     */\n    cleanup() {\n        this.subs.forEach((subDestroy) => subDestroy());\n        this.subs.length = 0;\n        this.decoder.destroy();\n    }\n    /**\n     * Close the current socket.\n     *\n     * @private\n     */\n    _close() {\n        this.skipReconnect = true;\n        this._reconnecting = false;\n        this.onclose(\"forced close\");\n        if (this.engine)\n            this.engine.close();\n    }\n    /**\n     * Alias for close()\n     *\n     * @private\n     */\n    disconnect() {\n        return this._close();\n    }\n    /**\n     * Called upon engine close.\n     *\n     * @private\n     */\n    onclose(reason, description) {\n        this.cleanup();\n        this.backoff.reset();\n        this._readyState = \"closed\";\n        this.emitReserved(\"close\", reason, description);\n        if (this._reconnection && !this.skipReconnect) {\n            this.reconnect();\n        }\n    }\n    /**\n     * Attempt a reconnection.\n     *\n     * @private\n     */\n    reconnect() {\n        if (this._reconnecting || this.skipReconnect)\n            return this;\n        const self = this;\n        if (this.backoff.attempts >= this._reconnectionAttempts) {\n            this.backoff.reset();\n            this.emitReserved(\"reconnect_failed\");\n            this._reconnecting = false;\n        }\n        else {\n            const delay = this.backoff.duration();\n            this._reconnecting = true;\n            const timer = this.setTimeoutFn(() => {\n                if (self.skipReconnect)\n                    return;\n                this.emitReserved(\"reconnect_attempt\", self.backoff.attempts);\n                // check again for the case socket closed in above events\n                if (self.skipReconnect)\n                    return;\n                self.open((err) => {\n                    if (err) {\n                        self._reconnecting = false;\n                        self.reconnect();\n                        this.emitReserved(\"reconnect_error\", err);\n                    }\n                    else {\n                        self.onreconnect();\n                    }\n                });\n            }, delay);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n    }\n    /**\n     * Called upon successful reconnect.\n     *\n     * @private\n     */\n    onreconnect() {\n        const attempt = this.backoff.attempts;\n        this._reconnecting = false;\n        this.backoff.reset();\n        this.emitReserved(\"reconnect\", attempt);\n    }\n}\n", "import { url } from \"./url.js\";\nimport { Manager } from \"./manager.js\";\nimport { Socket } from \"./socket.js\";\n/**\n * Managers cache.\n */\nconst cache = {};\nfunction lookup(uri, opts) {\n    if (typeof uri === \"object\") {\n        opts = uri;\n        uri = undefined;\n    }\n    opts = opts || {};\n    const parsed = url(uri, opts.path || \"/socket.io\");\n    const source = parsed.source;\n    const id = parsed.id;\n    const path = parsed.path;\n    const sameNamespace = cache[id] && path in cache[id][\"nsps\"];\n    const newConnection = opts.forceNew ||\n        opts[\"force new connection\"] ||\n        false === opts.multiplex ||\n        sameNamespace;\n    let io;\n    if (newConnection) {\n        io = new Manager(source, opts);\n    }\n    else {\n        if (!cache[id]) {\n            cache[id] = new Manager(source, opts);\n        }\n        io = cache[id];\n    }\n    if (parsed.query && !opts.query) {\n        opts.query = parsed.queryKey;\n    }\n    return io.socket(parsed.path, opts);\n}\n// so that \"lookup\" can be used both as a function (e.g. `io(...)`) and as a\n// namespace (e.g. `io.connect(...)`), for backward compatibility\nObject.assign(lookup, {\n    Manager,\n    Socket,\n    io: lookup,\n    connect: lookup,\n});\n/**\n * Protocol version.\n *\n * @public\n */\nexport { protocol } from \"socket.io-parser\";\n/**\n * Expose constructors for standalone build.\n *\n * @public\n */\nexport { Manager, Socket, lookup as io, lookup as connect, lookup as default, };\n"],
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+  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\n// Namespaces - See https://stackoverflow.com/a/52572048/1309986\n// const NAMESPACES = {\n//     svg: 'http://www.w3.org/2000/svg',\n//     html: 'http://www.w3.org/1999/xhtml',\n//     xml: 'http://www.w3.org/XML/1998/namespace',\n//     xlink: 'http://www.w3.org/1999/xlink',\n//     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n// }\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    //#region ---- Internal Methods ----\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                if (attrib === 'class' && Array.isArray(comp.attributes[attrib])) comp.attributes[attrib].join(' ')\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n    } // --- end of _uiManager ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    //#endregion ---- -------- ----\n    //#region ---- External Methods ----\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {HTMLElement|null} Selected HTML element or null\n     */\n    $(cssSelector) {\n        /** @type {*} Some kind of HTML element */\n        let el = document.querySelector(cssSelector)\n\n        if (!el) {\n            Ui.log(1, 'Uib:$', `No element found for CSS selector ${cssSelector}`)()\n            return null\n        }\n\n        if ( el.nodeName === 'TEMPLATE' ) {\n            el = el.content.firstElementChild\n            if (!el) {\n                Ui.log(0, 'Uib:$', `Template selected for CSS selector ${cssSelector} but it is empty`)()\n                return null\n            }\n        }\n\n        return el\n    }\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {string} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {HTMLElement[]} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$(cssSelector) {\n        return Array.from(document.querySelectorAll(cssSelector))\n    }\n\n    /** Add 1 or several class names to an element\n     * @param {string|string[]} classNames Single or array of classnames\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    addClass(classNames, el) {\n        if (!Array.isArray(classNames)) classNames = [classNames]\n        if (el) el.classList.add(...classNames)\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n                if (attrib.name === 'class') thisOut.classes = Array.from(node.classList)\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    /** Remove All, 1 or more class names from an element\n     * @param {undefined|null|\"\"|string|string[]} classNames Single or array of classnames. If undefined, \"\" or null, remove all classes\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    removeClass(classNames, el) {\n        if (!classNames) {\n            el.removeAttribute('class')\n            return\n        }\n        if (!Array.isArray(classNames)) classNames = [classNames]\n        if (el) el.classList.remove(...classNames)\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += `<div>${msg.payload}</div>`\n        if (ui.content) content += `<div>${ui.content}</div>`\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        console.log(this)\n        this._uiManager(msg)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName) {\n                if (propName === 'classes') propName = 'class'\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    const p = {}\n                    // Nightmare of different object types in a DOM Element!\n                    const cType = prop.constructor.name.toLowerCase()\n                    if (cType === 'namednodemap') {\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                    } else if (!cType.includes('map')) { // Ordinary properties (not a mapped type)\n                        p[propName] = prop\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                    }\n                    if (p.class) p.classes = Array.from(node.classList)\n                    out.push(p)\n                }\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    /** External alias for _uiComposeComponent\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    //#endregion ---- -------- ----\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n", "/* This is the Front-End JavaScript for uibuilder  in HTML Module form\n  It provides a number of global objects that can be used in your own javascript.\n  see the docs folder `./docs/uibuilder.module.md` for details of how to use this fully.\n\n  Please use the default index.js file for your own code and leave this as-is.\n  See Uib._meta for client version string\n\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n//#region --- Type Defs --- //\n/**\n * A string containing HTML markup\n * @typedef {string} html\n */\n//#endregion --- Type Defs --- //\n\n//#region --- We need the Socket.IO & ui libraries & the uib-var component  --- //\n// @ts-ignore - Note: Only works when using esbuild to bundle\nimport Ui from './ui'\nimport UibVar from '../components/uib-var'\nimport io from 'socket.io-client'\n\n// TODO - Maybe - check if already loaded as window['io']?\n// TODO - Maybe - Should this be moved to inside the class - would know the httpRoot then so less need to guess?\n// TODO           Or, could pull the cookie processing out of the class\n// const ioLocns = [ // Likely locations of the Socket.IO client library\n//     // Where it should normally be\n//     '../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and haven't changed httpNodeRoot\n//     '/uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and have changed httpNodeRoot\n//     '../../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Direct from the Internet - last ditch attempt\n//     'https://cdn.jsdelivr.net/npm/socket.io-client/+esm',\n// ]\n\n// let io\n// for (const locn of ioLocns) {\n//     try {\n//         ({ io } = await import(locn))\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library found at '${locn}'`)()\n//     } catch (e) {\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library not found at '${locn}'`)()\n//     }\n//     if (io) break\n// }\n// if (!io) log('error', 'uibuilder.module.js', 'Socket.IO client failed to load')()\n//#endregion -------- -------- -------- //\n\nconst version = '6.8.0-src'\n\n// TODO Add option to allow log events to be sent back to Node-RED as uib ctrl msgs\n//#region --- Module-level utility functions --- //\n\n// @ts-ignore Detect whether the loaded library is minified or not\nconst isMinified = !(/param/).test(function (param) { }) // eslint-disable-line no-unused-vars\n\n//#region --- print/console - debugging output functions --- //\n\n/** Default log level - Error & Warn */\nlet logLevel = isMinified ? 0 : 1  // When using minified lib, assume production and only log errors otherwise also log warn\n// function changeLogLevel(level) {\n//     logLevel = level\n//     console.trace = logLevel < 4 ? function(){} : console.trace\n//     console.debug = logLevel < 2 ? function(){} : console.debug\n//     if ( logLevel < 1 ) {\n//         console.log = console.group = console.groupEnd =  function(){}\n//     }\n// }\n\n// Experimental\nconst LOG_STYLES = {\n    // 0\n    error: {\n        css: 'background: red; color: black;',\n        txtCss: 'color: red; ',\n        pre: '\u26D4 ',\n        console: 'error',  // or trace\n    },\n    // 1\n    warn: {\n        css: 'background: darkorange; color: black;',\n        txtCss: 'color: darkorange; ',\n        pre: '\u26A0 ',\n        console: 'warn',\n    },\n    // 2\n    info: {\n        css: 'background: aqua; color: black;',\n        txtCss: 'color: aqua;',\n        pre: '\u2757 ',\n        console: 'info',\n    },\n    // 3\n    log: {\n        css: 'background: grey; color: yellow;',\n        txtCss: 'color: grey;',\n        pre: '',\n        console: 'log',\n    },\n    // 4\n    debug: {\n        css: 'background: chartreuse; color: black;',\n        txtCss: 'color: chartreuse;',\n        pre: '',\n        console: 'debug',\n    },\n    // 5\n    trace: {\n        css: 'background: indigo; color: yellow;',\n        txtCss: 'color: hotpink;',\n        pre: '',\n        console: 'log',\n    },\n\n    names: ['error', 'warn', 'info', 'log', 'debug', 'trace'],\n    reset: 'color: inherit;',\n    head: 'font-weight:bold; font-style:italic;',\n    level: 'font-weight:bold; border-radius: 3px; padding: 2px 5px; display:inline-block;',\n}\n/** Custom logging. e.g. log(2, 'here:there', 'jiminy', {fred:'jim'})()\n * @returns {Function} Log function @example log(2, 'here:there', 'jiminy', {fred:'jim'})()\n */\nfunction log() {\n    // Get the args\n    const args = Array.prototype.slice.call(arguments)\n\n    // 1st arg is the log level/type\n    let level = args.shift()\n    let strLevel\n    switch (level) {\n        case 'trace':\n        case 5: {\n            if (logLevel < 5) break\n            level = 5 // make sure level is numeric\n            strLevel = 'trace'\n            break\n        }\n\n        case 'debug':\n        case 4: {\n            if (logLevel < 4) break\n            level = 4\n            strLevel = 'debug'\n            break\n        }\n\n        case 'log':\n        case 3: {\n            if (logLevel < 3) break\n            level = 3\n            strLevel = 'log'\n            break\n        }\n\n        case 'info':\n        case '':\n        case 2: {\n            if (logLevel < 2) break\n            level = 2\n            strLevel = 'info'\n            break\n        }\n\n        case 'warn':\n        case 1: {\n            if (logLevel < 1) break\n            level = 1\n            strLevel = 'warn'\n            break\n        }\n\n        case 'error':\n        case 'err':\n        case 0: {\n            if (logLevel < 0) break\n            level = 0\n            strLevel = 'error'\n            break\n        }\n\n        default: {\n            level = -1\n            break\n        }\n\n    }\n\n    // If set to something unknown, no log output\n    if (strLevel === undefined) return function () { }\n\n    // 2nd arg is a heading that will be colour highlighted\n    const head = args.shift()\n\n    // Bind back to console.log (could use console[strLevel] but some levels ignore some formatting, use console.xxx directly or dedicated fn)\n    return Function.prototype.bind.call(\n        console[LOG_STYLES[strLevel].console],\n        console,\n        `%c${LOG_STYLES[strLevel].pre}${strLevel}%c [${head}]`, `${LOG_STYLES.level} ${LOG_STYLES[strLevel].css}`, `${LOG_STYLES.head} ${LOG_STYLES[strLevel].txtCss}`,\n        ...args\n    )\n}\n//#endregion\n\n/** A hack to dynamically load a remote module and wait until it is loaded\n * @param {string} url The URL of the module to load\n * @returns {object|null} Either the result object or null (if the load fails)\n */\n// function loadModule(url) { // eslint-disable-line no-unused-vars\n//     let done\n\n//     import(url)\n//         .then(res => {\n//             log('debug', '>> then >>', res)()\n//             done = res\n//         })\n//         .catch(err => {\n//             console.error(`[uibuilder:loadModule] Could not load module ${url}`, err)\n//             done = null\n//         })\n\n//     //  eslint-disable-next-line no-empty\n//     while (!done) { } // eslint-disable-line no-unmodified-loop-condition\n\n//     return done\n// }\n\n/** Makes a null or non-object into an object\n * If not null, moves \"thing\" to {payload:thing}\n *\n * @param {*} thing Thing to check\n * @param {string} [property='payload'] property that \"thing\" is moved to if not null and not an object\n * @returns {!object} _\n */\nfunction makeMeAnObject(thing, property) {\n    if (!property) property = 'payload'\n    if (typeof property !== 'string') {\n        log('warn', 'uibuilderfe:makeMeAnObject', `WARNING: property parameter must be a string and not: ${typeof property}`)()\n        property = 'payload'\n    }\n    let out = {}\n    if ( thing !== null && thing.constructor.name === 'Object' ) {\n        out = thing\n    } else if (thing !== null) {\n        out[property] = thing\n    }\n    return out\n} // --- End of make me an object --- //\n\n/** Joins all arguments as a URL string\n * see http://stackoverflow.com/a/28592528/3016654\n * since v1.0.10, fixed potential double // issue\n * arguments {string} URL fragments\n * @returns {string} _\n */\nfunction urlJoin() {\n    const paths = Array.prototype.slice.call(arguments)\n    const url = '/' + paths.map(function (e) {\n        return e.replace(/^\\/|\\/$/g, '')\n    })\n        .filter(function (e) {\n            return e\n        })\n        .join('/')\n    return url.replace('//', '/')\n} // ---- End of urlJoin ---- //\n\n/** Convert JSON to Syntax Highlighted HTML\n * @param {object} json A JSON/JavaScript Object\n * @returns {html} Object reformatted as highlighted HTML\n */\nfunction syntaxHighlight(json) {\n    if (json === undefined) {\n        json = '<span class=\"undefined\">undefined</span>'\n    } else {\n        try {\n            json = JSON.stringify(json, undefined, 4)\n            // json = json.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;') // eslint-disable-line newline-per-chained-call\n            json = json.replace(/(\"(\\\\u[a-zA-Z0-9]{4}|\\\\[^u]|[^\\\\\"])*\"(\\s*:)?|\\b(true|false|null)\\b|-?\\d+(?:\\.\\d*)?(?:[eE][+-]?\\d+)?)/g, function (match) { // eslint-disable-line prefer-named-capture-group\n                let cls = 'number'\n                if ((/^\"/).test(match)) {\n                    if ((/:$/).test(match)) {\n                        cls = 'key'\n                    } else {\n                        cls = 'string'\n                    }\n                } else if ((/true|false/).test(match)) {\n                    cls = 'boolean'\n                } else if ((/null/).test(match)) {\n                    cls = 'null'\n                }\n                return `<span class=\"${cls}\">${match}</span>`\n            })\n        } catch (e) {\n            json = `Syntax Highlight ERROR: ${e.message}`\n        }\n    }\n    return json\n}\n\n/** msg._ui handling functions */\nconst _ui = new Ui(window, log, syntaxHighlight)\n\n//#endregion --- Module-level utility functions --- //\n\n/** Define and export the Uib class - note that an instance of the class is also exported in the wrap-up\n * @typicalname uibuilder\n */\nexport const Uib = class Uib {\n\n    //#region --- Static variables ---\n    static _meta = {\n        version: version,\n        type: 'module',\n        displayName: 'uibuilder',\n    }\n    //#endregion ---- ---- ---- ----\n\n    //#region private class vars\n\n    // How many times has the loaded instance connected to Socket.IO (detect if not a new load?)\n    connectedNum = 0\n    // event listener callbacks by property name\n    // #events = {}\n    // Socket.IO channel names\n    _ioChannels = { control: 'uiBuilderControl', client: 'uiBuilderClient', server: 'uiBuilder' }\n    /** setInterval holder for pings @type {function|undefined} */\n    #pingInterval\n    // onChange event callbacks\n    #propChangeCallbacks = {}\n    // onTopic event callbacks\n    #msgRecvdByTopicCallbacks = {}\n    // Is Vue available?\n    isVue = false\n    // What version? Set in startup if Vue is loaded. Won't always work\n    vueVersion = undefined\n    /** setInterval id holder for Socket.IO checkConnect\n     * @type {number|null}\n     */\n    #timerid = null\n    // Holds the reference ID for the internal msg change event handler so that it can be cancelled\n    #MsgHandler\n    // Placeholder for io.socket - can't make a # var until # fns allowed in all browsers\n    _socket\n    // Placeholder for an observer that watches the whole DOM for changes - can't make a # var until # fns allowed in all browsers\n    _htmlObserver\n    // Has showMsg been turned on?\n    #isShowMsg = false\n    // Has showStatus been turned on?\n    #isShowStatus = false\n    // If true, URL hash changes send msg back to node-red. Controlled by watchUrlHash()\n    #sendUrlHash = false\n    // Externally accessible command functions (NB: Case must match) - remember to update _uibCommand for new commands\n    #extCommands = [\n        'elementExists', 'get', 'getManagedVarList', 'getWatchedVars', 'htmlSend', 'include',\n        'navigate', 'scrollTo', 'set', 'showMsg', 'showStatus', 'uiGet', 'uiWatch', 'watchUrlHash',\n    ]\n\n    /** @type {{[key: string]: string}} Managed uibuilder variables */\n    #managedVars = {}\n\n    // What status variables to show via showStatus()\n    #showStatus = {\n        online: { 'var': 'online', 'label': 'Online?', 'description': 'Is the browser online?', },\n        ioConnected: { 'var': 'ioConnected', 'label': 'Socket.IO connected?', 'description': 'Is Socket.IO connected?', },\n        connectedNum: { 'var': 'connectedNum', 'label': '# reconnections', 'description': 'How many times has Socket.IO had to reconnect since last page load?', },\n\n        clientId: { 'var': 'clientId', 'label': 'Client ID', 'description': 'Static client unique id set in Node-RED. Only changes when browser is restarted.', },\n        tabId: { 'var': 'tabId', 'label': 'Browser tab ID', 'description': 'Static unique id for the browser\\'s current tab', },\n        cookies: { 'var': 'cookies', 'label': 'Cookies', 'description': 'Cookies set in Node-RED', },\n        httpNodeRoot: { 'var': 'httpNodeRoot', 'label': 'httpNodeRoot', 'description': 'From Node-RED\\' settings.js, affects URL\\'s. May be wrong for pages in sub-folders', },\n        pageName: { 'var': 'pageName', 'label': 'Page name', 'description': 'Actual name of this page', },\n\n        ioNamespace: { 'var': 'ioNamespace', 'label': 'SIO namespace', 'description': 'Socket.IO namespace - unique to each uibuilder node instance', },\n        // ioPath: { 'var': 'ioPath', 'label': 'SIO path', 'description': '', }, // no longer needed in the modern client\n        socketError: { 'var': 'socketError', 'label': 'Socket error', 'description': 'If the Socket.IO connection has failed, says why', },\n\n        msgsSent: { 'var': 'msgsSent', 'label': '# msgs sent', 'description': 'How many standard messages have been sent to Node-RED?', },\n        msgsReceived: { 'var': 'msgsReceived', 'label': '# msgs received', 'description': 'How many standard messages have been received from Node-RED?', },\n        msgsSentCtrl: { 'var': 'msgsSentCtrl', 'label': '# control msgs sent', 'description': 'How many control messages have been sent to Node-RED?', },\n        msgsCtrlReceived: { 'var': 'msgsCtrlReceived', 'label': '# control msgs received', 'description': 'How many control messages have been received from Node-RED?', },\n        originator: { 'var': 'originator', 'label': 'Node Originator', 'description': 'If the last msg from Node-RED was from a `uib-sender` node, this will be its node id so that messasges can be returned to it', },\n        topic: { 'var': 'topic', 'label': 'Default topic', 'description': 'Optional default topic to be included in outgoing standard messages', },\n\n        started: { 'var': 'started', 'label': 'Has uibuilder client started?', 'description': 'Whether `uibuilder.start()` ran successfully. This should self-run and should not need to be run manually', },\n        version: { 'var': 'version', 'label': 'uibuilder client version', 'description': 'The version of the loaded uibuilder client library', },\n        serverTimeOffset: { 'var': 'serverTimeOffset', 'label': 'Server time offset (Hrs)', 'description': 'The number of hours difference between the Node-red server and the client', },\n    }\n\n    // Track ui observers (see uiWatch)\n    #uiObservers = {}\n\n    //#endregion\n\n    //#region public class vars\n\n    // TODO Move to proper getters\n    //#region ---- Externally read-only (via .get method) ---- //\n    // version - moved to _meta\n    /** Client ID set by uibuilder on connect */\n    clientId = ''\n    /** The collection of cookies provided by uibuilder */\n    cookies = {}\n    /** Copy of last control msg object received from sever */\n    ctrlMsg = {}\n    /** Is Socket.IO client connected to the server? */\n    ioConnected = false\n    // Is the browser tab containing this page visible or not?\n    isVisible = false\n    // Remember the last page (re)load/navigation type: navigate, reload, back_forward, prerender\n    lastNavType = ''\n    /** Last std msg received from Node-RED */\n    msg = {}\n    /** number of messages sent to server since page load */\n    msgsSent = 0\n    /** number of messages received from server since page load */\n    msgsReceived = 0\n    /** number of control messages sent to server since page load */\n    msgsSentCtrl = 0\n    /** number of control messages received from server since page load */\n    msgsCtrlReceived = 0\n    /** Is the client online or offline? */\n    online = navigator.onLine\n    /** last control msg object sent via uibuilder.send() @since v2.0.0-dev3 */\n    sentCtrlMsg = {}\n    /** last std msg object sent via uibuilder.send() */\n    sentMsg = {}\n    /** placeholder to track time offset from server, see fn socket.on(ioChannels.server ...) */\n    serverTimeOffset = null\n    /** placeholder for a socket error message */\n    socketError = null\n    // tab identifier from session storage\n    tabId = ''\n    // Actual name of current page (set in constructor)\n    pageName = null\n    // Is the DOMPurify library loaded? Updated in start()\n    purify = false\n    // Is the Markdown-IT library loaded? Updated in start()\n    markdown = false\n    // Current URL hash. Initial set is done from start->watchHashChanges via a set to make it watched\n    urlHash = location.hash\n    //#endregion ---- ---- ---- ---- //\n\n    // TODO Move to proper getters/setters\n    //#region ---- Externally Writable (via .set method, read via .get method) ---- //\n    /** Default originator node id - empty string by default\n     * @type {string}\n     */\n    originator = ''\n    /** Default topic - used by send if set and no topic provided\n     * @type {(string|undefined)}\n     */\n    topic = undefined\n    //#endregion ---- ---- ---- ---- //\n\n    //#region ---- These are unlikely to be needed externally: ----\n    autoSendReady = true\n    httpNodeRoot = '' // Node-RED setting (via cookie)\n    ioNamespace = ''\n    ioPath = ''\n    retryFactor = 1.5       // starting delay factor for subsequent reconnect attempts\n    retryMs = 2000          // starting retry ms period for manual socket reconnections workaround\n    storePrefix = 'uib_'    // Prefix for all uib-related localStorage\n    started = false\n    // NOTE: These can only change when a client (re)connects\n    socketOptions = {\n        path: this.ioPath,\n        transports: ['polling', 'websocket'],\n        // Using callback so that they are updated automatically on (re)connect\n        // Only put things in here that will be valid for a websocket connected session\n        auth: (cb) => {\n            cb({ // eslint-disable-line n/no-callback-literal\n                clientVersion: version,\n                clientId: this.clientId,\n                pathName: window.location.pathname,\n                urlParams: Object.fromEntries(new URLSearchParams(location.search)),\n                pageName: this.pageName,\n                tabId: this.tabId,\n                lastNavType: this.lastNavType,\n                connectedNum: ++this.connectedNum,\n                // Used to calculate the diff between the server and client connection timestamps - reported if >1 minute\n                browserConnectTimestamp: (new Date()).toISOString(),\n            })\n        },\n        transportOptions: {\n            // Can only set headers when polling\n            polling: {\n                extraHeaders: {\n                    'x-clientid': `${Uib._meta.displayName}; ${Uib._meta.type}; ${Uib._meta.version}; ${this.clientId}`,\n                }\n            },\n        },\n    }\n    //#endregion -- not external --\n\n    //#endregion --- End of variables ---\n\n    //#region ------- Getters and Setters ------- //\n\n    // Change logging level dynamically (affects both console. and print.)\n    set logLevel(level) { logLevel = level; console.log('%c\u2757 info%c [logLevel]', `${LOG_STYLES.level} ${LOG_STYLES.info.css}`, `${LOG_STYLES.head} ${LOG_STYLES.info.txtCss}`, `Set to ${level} (${LOG_STYLES.names[level]})`) /* changeLogLevel(level)*/ }\n    get logLevel() { return logLevel }\n\n    get meta() { return Uib._meta }\n\n    /** Function to set uibuilder properties to a new value - works on any property except _* or #*\n     * Also triggers any event listeners.\n     * Example: this.set('msg', {topic:'uibuilder', payload:42});\n     * @param {string} prop Any uibuilder property who's name does not start with a _ or #\n     * @param {*} val The set value of the property or a string declaring that a protected property cannot be changed\n     * @param {boolean} [store] If true, the variable is also saved to the browser localStorage if possible\n     * @param {boolean} [autoload] If true & store is true, on load, uib will try to restore the value from the store automatically\n     * @returns {*} Input value\n     */\n    set(prop, val, store = false, autoload = false) {\n        // Check for excluded properties - we don't want people to set these\n        // if (this.#excludedSet.indexOf(prop) !== -1) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:set', `Cannot use set() on protected property \"${prop}\"`)()\n            return `Cannot use set() on protected property \"${prop}\"`\n        }\n\n        // We must add the var to the uibuilder object\n        this[prop] = val\n\n        // Keep track of all managed variables\n        this.#managedVars[prop] = prop\n\n        // If requested, save to store\n        if (store === true) this.setStore(prop, val, autoload)\n\n        log('trace', 'Uib:set', `prop set - prop: ${prop}, val: `, val, ` store: ${store}, autoload: ${autoload}`)()\n\n        // Trigger this prop's event callbacks (listeners which are set by this.onChange)\n        // this.emit(prop, val)\n\n        // trigger an event on the prop name, pass both the name and value to the event details\n        this._dispatchCustomEvent('uibuilder:propertyChanged', { 'prop': prop, 'value': val, 'store': store, 'autoload': autoload })\n\n        return val\n    }\n\n    /** Function to get the value of a uibuilder property\n     * Example: uibuilder.get('msg')\n     * @param {string} prop The name of the property to get as long as it does not start with a _ or #\n     * @returns {*|undefined} The current value of the property\n     */\n    get(prop) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:get', `Cannot use get() on protected property \"${prop}\"`)()\n            return\n        }\n        if (prop === 'version') return Uib._meta.version\n        if (prop === 'msgsCtrl') return this.msgsCtrlReceived\n        if (prop === 'reconnections') return this.connectedNum\n        if (this[prop] === undefined) {\n            log('warn', 'Uib:get', `get() - property \"${prop}\" is undefined`)()\n        }\n        return this[prop]\n    }\n\n    /** Write to localStorage if possible. console error output if can't write\n     * Also uses this.storePrefix\n     * @example\n     *   uibuilder.setStore('fred', 42)\n     *   console.log(uibuilder.getStore('fred'))\n     * @param {string} id localStorage var name to be used (prefixed with 'uib_')\n     * @param {*} value value to write to localstore\n     * @param {boolean} [autoload] If true, on load, uib will try to restore the value from the store\n     * @returns {boolean} True if succeeded else false\n     */\n    setStore(id, value, autoload = false) {\n        let autoVars = {}\n        if (autoload === true) {\n            try {\n                autoVars = this.getStore('_uibAutoloadVars') || {}\n            } catch (e) {}\n        }\n        if (typeof value === 'object') {\n            try {\n                value = JSON.stringify(value)\n            } catch (e) {\n                log('error', 'Uib:setStore', 'Cannot stringify object, not storing. ', e)()\n                return false\n            }\n        }\n        try {\n            localStorage.setItem(this.storePrefix + id, value)\n            if (autoload) {\n                autoVars[id] = id\n                try {\n                    localStorage.setItem(this.storePrefix + '_uibAutoloadVars', JSON.stringify(autoVars))\n                } catch (e) {\n                    log('error', 'Uib:setStore', 'Cannot save autoload list. ', e)()\n                }\n            }\n            this._dispatchCustomEvent('uibuilder:propertyStored', { 'prop': id, 'value': value, 'autoload': autoload })\n            return true\n        } catch (e) {\n            log('error', 'Uib:setStore', 'Cannot write to localStorage. ', e)()\n            return false\n        }\n    } // --- end of setStore --- //\n\n    /** Attempt to get and re-hydrate a key value from localStorage\n     * Note that all uib storage is automatically prefixed using this.storePrefix\n     * @param {*} id The key of the value to attempt to retrieve\n     * @returns {*|null|undefined} The re-hydrated value of the key or null if key not found, undefined on error\n     */\n    getStore(id) {\n        try {\n            // @ts-ignore\n            return JSON.parse(localStorage.getItem(this.storePrefix + id))\n        } catch (e) { }\n        try {\n            return localStorage.getItem(this.storePrefix + id)\n        } catch (e) {\n            return undefined\n        }\n    }\n\n    /** Remove a given id from the uib keys in localStorage\n     * @param {*} id The key to remove\n     */\n    removeStore(id) {\n        try {\n            localStorage.removeItem(this.storePrefix + id)\n        } catch (e) { }\n    }\n\n    /** Returns a list of uibuilder properties (variables) that can be watched with onChange\n     * @returns {{[key: string]: string}} List of uibuilder managed variables\n     */\n    getManagedVarList() {\n        return this.#managedVars\n    }\n\n    getWatchedVars() {\n        return Object.keys(this.#propChangeCallbacks)\n    }\n\n    //#endregion ------- -------- ------- //\n\n    //#region ------- Our own event handling system ---------- //\n\n    // TODO Add option to send event details back to Node-RED as uib ctrl msg\n    /** Standard fn to create a custom event with details & dispatch it\n     * @param {string} title The event name\n     * @param {*} details Any details to pass to event output\n     */\n    _dispatchCustomEvent(title, details) {\n        const event = new CustomEvent(title, { detail: details })\n        document.dispatchEvent(event)\n    }\n\n    // See the this.#propChangeCallbacks & msgRecvdByTopicCallbacks private vars\n\n    /** Register on-change event listeners for uibuilder tracked properties\n     * Make it possible to register a function that will be run when the property changes.\n     * Note that you can create listeners for non-existant properties\n     * @example: uibuilder.onChange('msg', (msg) => { console.log('uibuilder.msg changed! It is now: ', msg) })\n     *\n     * @param {string} prop The property of uibuilder that we want to monitor\n     * @param {Function} callback The function that will run when the property changes, parameter is the new value of the property after change\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelChange if you need to remove a listener\n     */\n    onChange(prop, callback) {\n        // Note: Property does not have to exist yet\n\n        // console.debug(`[Uib:onchange] pushing new callback (event listener) for property: ${prop}`)\n\n        // Create a new array or add to the array of callback functions for the property in the events object\n        // if (this.#events[prop]) {\n        //     this.#events[prop].push(callback)\n        // } else {\n        //     this.#events[prop] = [callback]\n        // }\n\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#propChangeCallbacks[prop]) this.#propChangeCallbacks[prop] = { _nextRef: 1 }\n        else this.#propChangeCallbacks[prop]._nextRef++\n\n        const nextCbRef = this.#propChangeCallbacks[prop]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const propChangeCallback = this.#propChangeCallbacks[prop][nextCbRef] = function propChangeCallback(e) {\n            // If the prop name matches the 1st arg in the onChange fn:\n            if (prop === e.detail.prop) {\n                const value = e.detail.value\n                // console.warn('[Uib:onChange:evt] uibuilder:propertyChanged. ', e.detail)\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(value, value)\n            }\n        }\n\n        document.addEventListener('uibuilder:propertyChanged', propChangeCallback)\n\n        return nextCbRef\n    } // ---- End of onChange() ---- //\n\n    cancelChange(prop, cbRef) {\n        document.removeEventListener('uibuilder:propertyChanged', this.#propChangeCallbacks[prop][cbRef])\n        delete this.#propChangeCallbacks[prop][cbRef]\n        // this.#propChangeCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Register a change callback for a specific msg.topic\n     * Similar to onChange but more convenient if needing to differentiate by msg.topic.\n     * @example: let otRef = uibuilder.onTopic('mytopic', function(){ console.log('Received a msg with msg.topic=`mytopic`. msg: ', this) })\n     * To cancel a change listener: uibuilder.cancelTopic('mytopic', otRef)\n     *\n     * @param {string} topic The msg.topic we want to listen for\n     * @param {Function} callback The function that will run when an appropriate msg is received. `this` inside the callback as well as the cb's single argument is the received msg.\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelTopic if you need to remove a listener\n     */\n    onTopic(topic, callback) {\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#msgRecvdByTopicCallbacks[topic]) this.#msgRecvdByTopicCallbacks[topic] = { _nextRef: 1 }\n        else this.#msgRecvdByTopicCallbacks[topic]._nextRef++\n\n        const nextCbRef = this.#msgRecvdByTopicCallbacks[topic]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const msgRecvdEvtCallback = this.#msgRecvdByTopicCallbacks[topic][nextCbRef] = function msgRecvdEvtCallback(e) {\n            const msg = e.detail\n            // console.log('[Uib:onTopic:evt] uibuilder:stdMsgReceived where topic matches. ', e.detail)\n            if (msg.topic === topic) {\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(msg, msg)\n            }\n        }\n\n        document.addEventListener('uibuilder:stdMsgReceived', msgRecvdEvtCallback)\n\n        return nextCbRef\n    }\n\n    cancelTopic(topic, cbRef) {\n        document.removeEventListener('uibuilder:stdMsgReceived', this.#msgRecvdByTopicCallbacks[topic][cbRef])\n        delete this.#msgRecvdByTopicCallbacks[topic][cbRef]\n        // this.#msgRecvdCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Trigger event listener for a given property\n     * Called when uibuilder.set is used\n     *\n     * @param {*} prop The property for which to run the callback functions\n     * arguments: Additional arguments contain the value to pass to the event callback (e.g. newValue)\n     */\n    // emit(prop) {\n    //     var evt = this.#events[prop]\n    //     if (!evt) {\n    //         return\n    //     }\n    //     var args = Array.prototype.slice.call(arguments, 1)\n    //     for (var i = 0; i < evt.length; i++) {\n    //         evt[i].apply(this, args)\n    //     }\n    //     log('trace', 'Uib:emit', `${evt.length} listeners run for prop ${prop} `)()\n    // }\n\n    /** Forcibly removes all event listeners from the events array\n     * Use if you need to re-initialise the environment\n     */\n    // clearEventListeners() {\n    //     this.#events = []\n    // } // ---- End of clearEventListeners() ---- //\n\n    /** Clear a single property event listeners\n     * @param {string} prop The property of uibuilder for which we want to clear the event listener\n     */\n    // clearListener(prop) {\n    //     if (this.#events[prop]) delete this.#events[prop]\n    // }\n\n    //#endregion ---------- End of event handling system ---------- //\n\n    //#region ------- General Utility Functions -------- //\n\n    /** Check supplied msg from server for a timestamp - if received, work out & store difference to browser time\n     * @param {object} receivedMsg A message object recieved from Node-RED\n     * @returns {void} Updates self.serverTimeOffset if different to previous value\n     */\n    _checkTimestamp(receivedMsg) {\n        if (Object.prototype.hasOwnProperty.call(receivedMsg, 'serverTimestamp')) {\n            const serverTimestamp = new Date(receivedMsg.serverTimestamp)\n            // @ts-ignore\n            const offset = Math.round(((new Date()) - serverTimestamp) / 3600000) // in ms /3.6m to get hours\n            if (offset !== this.serverTimeOffset) {\n                log('trace', `Uib:checkTimestamp:${this._ioChannels.server} (server)`, `Offset changed to: ${offset} from: ${this.serverTimeOffset}`)()\n                this.set('serverTimeOffset', offset)\n            }\n        }\n    }\n\n    /** Set the default originator. Set to '' to ignore. Used with uib-sender.\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    setOriginator(originator = '') {\n        this.set('originator', originator)\n    } // ---- End of setOriginator ---- //\n\n    /** HTTP Ping/Keep-alive - makes a call back to uibuilder's ExpressJS server and receives a 204 response\n     * Can be used to keep sessions alive.\n     * @example\n     *   uibuilder.setPing(2000) // repeat every 2 sec. Re-issue with ping(0) to turn off repeat.\n     *   uibuilder.onChange('ping', function(data) {\n     *      console.log('pinger', data)\n     *   })\n     * @param {number} ms Repeat interval in ms\n     */\n    setPing(ms = 0) {\n        const oReq = new XMLHttpRequest()\n        oReq.addEventListener('load', () => {\n            const headers = (oReq.getAllResponseHeaders()).split('\\r\\n')\n            const elapsedTime = Number(new Date()) - Number((oReq.responseURL.split('='))[1])\n            this.set('ping', {\n                success: !!((oReq.status === 201) || (oReq.status === 204)), // true if one of the listed codes else false\n                status: oReq.status,\n                headers: headers,\n                url: oReq.responseURL,\n                elapsedTime: elapsedTime,\n            })\n        })\n\n        if (this.#pingInterval) {\n            clearInterval(this.#pingInterval)\n            this.#pingInterval = undefined\n        }\n\n        oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n        oReq.send()\n\n        if (ms > 0) {\n            this.#pingInterval = setInterval(() => {\n                oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n                oReq.send()\n            }, ms)\n        }\n    } // ---- End of ping ---- //\n\n    log() {\n        log(...arguments)()\n    }\n\n    /** Convert JSON to Syntax Highlighted HTML\n     * @param {object} json A JSON/JavaScript Object\n     * @returns {html} Object reformatted as highlighted HTML\n     */\n    syntaxHighlight(json) {\n        return syntaxHighlight(json)\n    } // --- End of syntaxHighlight --- //\n\n    /** Copies a uibuilder variable to the browser clipboard\n     * @param {string} varToCopy The name of the uibuilder variable to copy to the clipboard\n     */\n    copyToClipboard(varToCopy) {\n        let data = ''\n        try {\n            data = JSON.stringify(this.get(varToCopy))\n        } catch (e) {\n            log('error', 'copyToClipboard', `Could not copy \"${varToCopy}\" to clipboard.`, e.message)()\n        }\n        navigator.clipboard.writeText(data)\n    } // --- End of copyToClipboard --- //\n\n    /** DEPRECATED FOR NOW - wasn't working properly.\n     * Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.\n     * Requires IntersectionObserver (available to all mainstream browsers from early 2019)\n     * Automatically sends a msg back to Node-RED.\n     * Requires the element to already exist.\n     * @returns {false} False if not visible\n     */\n    elementIsVisible() {\n        const info = 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'\n        log('error', 'uib:elementIsVisible', info)()\n        this.send({ payload: 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex' })\n        return false\n    } // --- End of elementIsVisible --- //\n\n    /** Does the chosen CSS Selector currently exist?\n     * Automatically sends a msg back to Node-RED unless turned off.\n     * @param {string} cssSelector Required. CSS Selector to examine for visibility\n     * @param {boolean} [msg] Optional, default=true. If true also sends a message back to Node-RED\n     * @returns {boolean} True if the element exists\n     */\n    elementExists(cssSelector, msg = true) {\n        const el = document.querySelector(cssSelector)\n\n        let exists = false\n        if (el !== null) exists = true\n\n        if (msg === true) {\n            this.send({\n                payload: exists,\n                info: `Element \"${cssSelector}\" ${exists ? 'exists' : 'does not exist'}`\n            })\n        }\n\n        return exists\n    } // --- End of elementExists --- //\n\n    /** Only keep the URL Hash & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return '#' + url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Set up an event listener to watch for hash changes\n     * and set the watchable urlHash variable\n     */\n    _watchHashChanges() {\n        this.set('urlHash', location.hash)\n        window.addEventListener('hashchange', (event) => {\n            this.set('urlHash', location.hash)\n            if (this.#sendUrlHash === true) {\n                this.send({ topic: 'hashChange', payload: location.hash, newHash: this.keepHashFromUrl(event.newURL), oldHash: this.keepHashFromUrl(event.oldURL) })\n            }\n        })\n    }\n\n    /** Returns true/false or a default value for truthy/falsy and other values\n     * @param {string|number|boolean|*} val The value to test\n     * @param {any} deflt Default value to use if the value is not truthy/falsy\n     * @returns {boolean|any} The truth! Or the default\n     */\n    truthy(val, deflt) {\n        let ret\n        if (['on', 'On', 'ON', 'true', 'True', 'TRUE', '1', true, 1].includes(val)) ret = true\n        else if (['off', 'Off', 'OFF', 'false', 'False', 'FALSE', '0', false, 0].includes(val)) ret = false\n        else ret = deflt\n        return ret\n    }\n\n    /** Turn on/off/toggle sending URL hash changes back to Node-RED\n     * @param {string|number|boolean|undefined} [toggle] Optional on/off/etc\n     * @returns {boolean} True if we will send a msg to Node-RED on a hash change\n     */\n    watchUrlHash(toggle) {\n        this.#sendUrlHash = this.truthy(toggle, this.#sendUrlHash !== true)\n        return this.#sendUrlHash\n    }\n\n    /** Navigate to a new page or a new route (hash)\n     * @param {string} url URL to navigate to. Can be absolute or relative (to current page) or just a hash for a route change\n     * @returns {Location} The new window.location string\n     */\n    navigate(url) {\n        if (url) window.location.href = url\n        return window.location\n    }\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- UI handlers --------- //\n\n    //#region -- Direct to _ui --\n    // ! NOTE: Direct assignments change the target `this` to here. Use with caution\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {HTMLElement|null} Selected HTML element or null\n     */\n    $ = _ui.$\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {string} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {HTMLElement[]} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$ = _ui.$$\n\n    /** Reference to the full ui library */\n    $ui = _ui\n\n    /** Add 1 or several class names to an element\n     * @param {string|string[]} classNames Single or array of classnames\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    addClass = _ui.addClass\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        return _ui.convertMarkdown\n    }\n\n    /** ASYNC: Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     */\n    async include(url, uiOptions) {\n        await _ui.include(url, uiOptions)\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        _ui.loadScriptSrc(url)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        _ui.loadStyleSrc(url)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        _ui.loadScriptTxt(textFn)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        _ui.loadStyleTxt(textFn)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        _ui.loadui(url)\n    }\n\n    /** Remove All, 1 or more class names from an element\n     * @param {undefined|null|\"\"|string|string[]} classNames Single or array of classnames. If undefined, \"\" or null, remove all classes\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    removeClass = _ui.removeClass\n\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        _ui.replaceSlot(el, component)\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        _ui.replaceSlotMarkdown(el, component)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        return _ui.sanitiseHTML(html)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) {\n        _ui.showDialog(type, ui, msg)\n    }\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        _ui.ui(json)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        return _ui.uiGet(cssSelector, propName)\n    }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} component Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, component) {\n        _ui.uiEnhanceElement(el, component)\n    }\n\n    //#endregion -- direct to _ui --\n\n    /** * Show/hide a display card on the end of the visible HTML that will dynamically display the last incoming msg from Node-RED\n     * The card has the id `uib_last_msg`. Updates are done from a listener set up in the start function.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showMsg(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowMsg\n        this.#isShowMsg = showHide\n        let slot = 'Waiting for a message from Node-RED'\n\n        if (this.msg && Object.keys(this.msg).length > 0) {\n            slot = this.syntaxHighlight(this.msg)\n        }\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_last_msg_wrap',\n                ],\n            })\n        } else {\n            _ui._uiReplace({\n                components: [\n                    {\n                        type: 'div',\n                        id: 'uib_last_msg_wrap',\n                        parent: parent,\n                        attributes: {\n                            title: 'Last message from Node-RED',\n                        },\n                        components: [\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.copyToClipboard(\"msg\")',\n                                    class: 'compact',\n                                    style: 'right:3em;',\n                                },\n                                slot: '\uD83D\uDCCB',\n                            },\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.showMsg()',\n                                    class: 'compact',\n                                    style: 'right:.5em;',\n                                },\n                                slot: '\u26D4',\n                            },\n                            {\n                                type: 'pre',\n                                id: 'uib_last_msg',\n                                // parent: 'uib_last_msg_wrap',\n                                attributes: {\n                                    class: 'syntax-highlight',\n                                },\n                                slot: slot,\n                            },\n                        ],\n                    },\n                ],\n            })\n        }\n\n        return showHide\n    }\n\n    /** Show a browser notification if possible.\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * @example uibuilder.notify( 'My simple message to the user' )\n     * @example uibuilder.notify( {topic: 'My Title', payload: 'My simple message to the user'} )\n     * @example uibuilder.notify( {title: 'My Title', body: 'My simple message to the user'} )\n     * @example // If config.return = true, a promise is returned.\n     * // The resolved promise is only returned if the notification is clicked by the user.\n     * // Can be used to send the response back to Node-RED\n     * uibuilder.notify(notifyConfig).then( res => uibuilder.eventSend(res) )\n     * @ref https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config data or simple message string\n     * @returns {Promise<Event>|null} A promise that resolves to the click event or null\n     */\n    notify(config) {\n        if (config.return) return _ui.notification(config)\n\n        _ui.notification(config)\n            .then( res => { // eslint-disable-line promise/always-return\n                log('info', 'Uib:notification', 'Notification completed event', res)()\n                // if (config.return) return res\n            })\n            .catch( err => {\n                log('error', 'Uib:notification', 'Notification error event', err)()\n            })\n        return null\n    }\n\n    /** Scroll the page\n     * https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollIntoView\n     * @param {string} [cssSelector] Optional. If not set, scrolls to top of page.\n     * @param {{block:(string|undefined),inline:(string|undefined),behavior:(string|undefined)}} [opts] Optional. DOM scrollIntoView options\n     * @returns {boolean} True if element was found, false otherwise\n     */\n    scrollTo(cssSelector, opts) {\n        // @ts-ignore\n        if (!opts) opts = {}\n        if (!cssSelector || cssSelector === 'top'  || cssSelector === 'start') cssSelector = 'body'\n        else if (cssSelector === 'bottom' || cssSelector === 'end') {\n            cssSelector = 'body'\n            opts.block = 'end'\n        }\n        const el = this.$(cssSelector)\n        if (el) {\n            el.scrollIntoView(opts)\n            return true\n        }\n        return false\n    }\n\n    /** Show/hide a display card on the end of the visible HTML that will dynamically display the current status of the uibuilder client\n     * The card has the id `uib_status`.\n     * The display is updated by an event listener created in the class constructor.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showStatus(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowStatus\n        this.#isShowStatus = showHide\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_status',\n                ],\n            })\n            return showHide\n        }\n\n        const root = {\n            components: [\n                {\n                    type: 'div',\n                    id: 'uib_status',\n                    parent: parent,\n                    attributes: {\n                        title: 'Current status of the uibuilder client',\n                        class: 'text-smaller',\n                    },\n                    components: [\n                        {\n                            'type': 'table',\n                            'components': [\n                                {\n                                    'type': 'tbody',\n                                    'components': []\n                                }\n                            ]\n                        }\n                    ]\n                }\n            ]\n        }\n        const details = root.components[0].components[0].components[0].components\n\n        Object.values(this.#showStatus).forEach( entry => {\n            details.push({\n                'type': 'tr',\n                'attributes': {\n                    title: entry.description,\n                },\n                'components': [\n                    {\n                        'type': 'th',\n                        'slot': entry.label,\n                    },\n                    {\n                        'type': 'td',\n                        'attributes': {\n                            'data-varType': entry.var,\n                        },\n                        'slot': entry.var === 'version' ? Uib._meta.version : JSON.stringify(this[entry.var]),\n                    }\n                ],\n            })\n        })\n\n        _ui._uiReplace(root)\n\n        return showHide\n    }\n\n    /** Use the Mutation Observer browser API to watch for changes to a single element on the page.\n     * OMG! It is sooo hard to turn the data into something that successfully serialises so it can be sent back to Node-RED!\n     * NB: Each cssSelector creates a unique watcher. Sending the same selector overwrites the previous one.\n     * @param {string} cssSelector A CSS Selector that selects the element to watch for changes\n     * @param {boolean|\"toggle\"} [startStop] true=start watching the DOM, false=stop. Default='toggle'\n     * @param {boolean} [send] true=Send changes to Node-RED, false=Don't send. Default=true\n     * @param {boolean} [showLog] true=Output changes to log, false=stop. Default=true. Log level is 2 (Info)\n     * @returns {boolean} True if the watch is on, false otherwise\n     */\n    uiWatch(cssSelector, startStop = 'toggle', send = true, showLog = true) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.querySelector(cssSelector)\n        if (!targetNode) {\n            log('warn', 'uibuilder.module.js:uiWatch', `CSS Selector '${cssSelector}' not found.`)()\n            return false\n        }\n\n        if (startStop === 'toggle' || startStop === undefined || startStop === null) {\n            if (this.#uiObservers[cssSelector]) startStop = false\n            else startStop = true\n        }\n\n        // Need a ref to the Uib this\n        const that = this\n\n        if (startStop === true) {\n            // Create an observer instance\n            this.#uiObservers[cssSelector] = new MutationObserver( function( mutationList /* , observer */ ) {\n                const out = []\n\n                mutationList.forEach( mu => {\n                    // console.log({ mu })\n                    const oMu = {\n                        type: mu.type,\n                        oldValue: mu.oldValue !== null ? mu.oldValue : undefined,\n                    }\n\n                    if (mu.addedNodes.length > 0) {\n                        oMu.addedNodes = []\n                        mu.addedNodes.forEach( (an, i) => {\n                            oMu.addedNodes.push(_ui.nodeGet(mu.addedNodes[i]))\n                        })\n                    }\n\n                    if (mu.removedNodes.length > 0) {\n                        oMu.removedNodes = []\n                        mu.removedNodes.forEach( (an, i) => {\n                            oMu.removedNodes.push(_ui.nodeGet(mu.removedNodes[i]))\n                        })\n                    }\n\n                    if ( mu.type === 'attributes' ) {\n                        oMu.attributeName = mu.attributeName\n                        // @ts-ignore\n                        oMu.newValue = mu.target.attributes[mu.attributeName].value\n                    }\n\n                    out.push(oMu)\n                })\n\n                // Custom event\n                that._dispatchCustomEvent('uibuilder:domChange', out)\n                // Send a msg back to node-red\n                if (send === true) {\n                    that.send({\n                        _ui: {\n                            cssSelector: cssSelector,\n                            uiChanges: out\n                        },\n                        topic: that.topic || `DOM Changes for '${cssSelector}'`,\n                    })\n                }\n                // Log to info\n                if (showLog === true) {\n                    log('info', 'uibuilder.module.js:uiWatch', `DOM Changes for '${cssSelector}'`, { uiChanges: out }, { mutationList })()\n                }\n            } )\n\n            // Start observing the target node for configured mutations\n            this.#uiObservers[cssSelector].observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:uiWatch', `Started Watching DOM changes for '${cssSelector}'`)()\n        } else {\n            this.#uiObservers[cssSelector].disconnect()\n            delete this.#uiObservers[cssSelector]\n            log('trace', 'uibuilder.module.js:uiWatch', `Stopped Watching DOM changes for '${cssSelector}'`)()\n        }\n\n        return startStop\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- HTML cache and DOM watch --------- //\n\n    /** Clear the saved DOM from localStorage */\n    clearHtmlCache() {\n        this.removeStore('htmlCache')\n        log('trace', 'uibuilder.module.js:clearHtmlCache', 'HTML cache cleared')()\n    }\n\n    /** Restore the complete DOM (the whole web page) from browser localStorage if available */\n    restoreHtmlFromCache() {\n        // Is the html cached? If so, restore it\n        const htmlCache = this.getStore('htmlCache')\n        if (htmlCache) {\n            const targetNode = document.getElementsByTagName('html')[0]\n            // Restore the entire HTML\n            targetNode.innerHTML = htmlCache\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'Restored HTML from cache')()\n        } else {\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'No cache to restore')()\n        }\n    }\n\n    /** Save the current DOM state to browser localStorage.\n     * localStorage is persistent and so can be recovered even after a browser restart.\n     */\n    saveHtmlCache() {\n        // Save the updated entire HTML in localStorage\n        this.setStore('htmlCache', document.documentElement.innerHTML)\n    }\n\n    /** Use the Mutation Observer browser API to watch for and save changes to the HTML\n     * Once the observer is created, it will be reused.\n     * Sending true or undefined will turn on the observer, false turns it off.\n     * saveHtmlCache is called whenever anything changes in the dom. This allows\n     * users to call restoreHtmlFromCache() on page load if desired to completely reload\n     * to the last saved state.\n     * @param {boolean} startStop true=start watching the DOM, false=stop\n     */\n    watchDom(startStop) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.documentElement\n\n        // Need a ref to the Uib this\n        const that = this\n\n        // Create an observer instance\n        if (!this._htmlObserver) {\n            this._htmlObserver = new MutationObserver( function(/* mutationList, observer */) {\n                // We don't need to know the details - so kill off any outstanding mutation records\n                this.takeRecords()\n                // Save the updated entire HTML in localStorage\n                that.saveHtmlCache()\n            } )\n        }\n\n        if (startStop === true || startStop === undefined) {\n            // Start observing the target node for configured mutations\n            this._htmlObserver.observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:watchDom', 'Started Watching and saving DOM changes')()\n        } else {\n            this._htmlObserver.disconnect()\n            log('trace', 'uibuilder.module.js:watchDom', 'Stopped Watching and saving DOM changes')()\n        }\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- Message Handling (To/From Node-RED) -------- //\n\n    /** Handles original control msgs (not to be confused with \"new\" msg._uib controls)\n     * @param {*} receivedCtrlMsg The msg received on the socket.io control channel\n     */\n    _ctrlMsgFromServer(receivedCtrlMsg) {\n\n        // Make sure that msg is an object & not null\n        if (receivedCtrlMsg === null) {\n            receivedCtrlMsg = {}\n        } else if (typeof receivedCtrlMsg !== 'object') {\n            const msg = {}\n            msg['uibuilderCtrl:' + this._ioChannels.control] = receivedCtrlMsg\n            receivedCtrlMsg = msg\n        }\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedCtrlMsg)\n\n        this.set('ctrlMsg', receivedCtrlMsg)\n        this.set('msgsCtrlReceived', ++this.msgsCtrlReceived)\n\n        log('trace', 'Uib:ioSetup:_ctrlMsgFromServer', `Channel '${this._ioChannels.control}'. Received control msg #${this.msgsCtrlReceived}`, receivedCtrlMsg)()\n\n        /** Process control msg types */\n        switch (receivedCtrlMsg.uibuilderCtrl) {\n            // Node-RED is shutting down\n            case 'shutdown': {\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, '\u274C Received \"shutdown\" from server')()\n                this.set('serverShutdown', undefined)\n                break\n            }\n\n            /** We are connected to the server - 1st msg from server */\n            case 'client connect': {\n                log('trace', `Uib:ioSetup:${this._ioChannels.control}`, 'Received \"client connect\" from server')()\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, `\u2705 Server connected. Version: ${receivedCtrlMsg.version}\\nServer time: ${receivedCtrlMsg.serverTimestamp}, Sever time offset: ${this.serverTimeOffset} hours`)()\n\n                if ( !Uib._meta.version.startsWith(receivedCtrlMsg.version.split('-')[0]) ) {\n                    log('warn', `Uib:ioSetup:${this._ioChannels.control}`, `Server version (${receivedCtrlMsg.version}) not the same as the client version (${Uib._meta.version})`)()\n                }\n\n                if (this.autoSendReady === true) { // eslint-disable-line no-lonely-if\n                    log('trace', `Uib:ioSetup:${this._ioChannels.control}/client connect`, 'Auto-sending ready-for-content/replay msg to server')\n                    // @since 0.4.8c Add cacheControl property for use with node-red-contrib-infocache\n                    // @since 6.1.0 Don't bother, we use the \"client connect\" msg\n                    // this._send({\n                    //     'uibuilderCtrl': 'ready for content',\n                    //     'cacheControl': 'REPLAY',\n                    // }, this._ioChannels.control)\n                }\n\n                break\n            }\n\n            default: {\n                log('trace', `uibuilderfe:ioSetup:${this._ioChannels.control}`, `Received ${receivedCtrlMsg.uibuilderCtrl} from server`)\n                // Anything else to do for other control msgs?\n            }\n        } // ---- End of process control msg types ---- //\n    } // -- End of websocket receive CONTROL msg from Node-RED -- //\n\n    /** Do we want to process something? Check pageName, clientId, tabId. Defaults to yes.\n     * @param {*} obj Either a msg._ui or msg._uib object to check\n     * @returns {boolean} True if we should process the inbound _ui/_uib msg, false if not.\n     */\n    _forThis(obj) {\n        let r = true\n\n        // Is this msg for this pageName?\n        if (obj.pageName && obj.pageName !== this.pageName) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this page')()\n            r = false\n        }\n\n        // Is this msg for this clientId?\n        if (obj.clientId && obj.clientId !== this.clientId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this clientId')()\n            r = false\n        }\n\n        // Is this msg for this tabId?\n        if (obj.tabId && obj.tabId !== this.tabId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this tabId')()\n            r = false\n        }\n\n        return r\n    }\n\n    // Handle received messages - Process some msgs internally, emit specific events on document that make it easy for coders to use\n    _msgRcvdEvents(msg) {\n        // Message received\n        this._dispatchCustomEvent('uibuilder:stdMsgReceived', msg)\n\n        // Topic\n        if ( msg.topic ) this._dispatchCustomEvent(`uibuilder:msg:topic:${msg.topic}`, msg)\n\n        // Handle msg._uib special requests\n        if (msg._uib) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._uib)) return\n\n            /** Process a client reload request from Node-RED - as the page is reloaded, everything else is ignored\n             * Note that msg._ui.reload is also actioned via the _ui processing below */\n            if (msg._uib.reload === true) {\n                log('trace', 'Uib:_msgRcvdEvents:_uib:reload', 'reloading')()\n                location.reload()\n                return\n            }\n\n            // Process msg._uib.command messages - allows Node-RED to run uibuilder FE functions\n            if (msg._uib.command) {\n                this._uibCommand(msg)\n                return\n            }\n\n            // Better to request via msg._ui - these are for backwards compatibility\n            if ( msg._uib.componentRef === 'globalNotification' ) {\n                _ui.showDialog('notify', msg._uib.options, msg)\n            }\n            if ( msg._uib.componentRef === 'globalAlert' ) {\n                _ui.showDialog('alert', msg._uib.options, msg)\n            }\n        }\n\n        // Handle msg._ui requests\n        if ( msg._ui ) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._ui)) return\n\n            log('trace', 'Uib:_msgRcvdEvents:_ui', 'Calling _uiManager')()\n            this._dispatchCustomEvent('uibuilder:msg:_ui', msg)\n            _ui._uiManager(msg)\n        }\n    } // --- end of _msgRcvdEvents ---\n\n    /** Internal send fn. Send a standard or control msg back to Node-RED via Socket.IO\n     * NR will generally expect the msg to contain a payload topic\n     * @param {object} msgToSend The msg object to send.\n     * @param {string} [channel=uiBuilderClient] The Socket.IO channel to use, must be in self.ioChannels or it will be ignored\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    _send(msgToSend, channel, originator = '') {\n        if (channel === null || channel === undefined) channel = this._ioChannels.client\n\n        // Make sure msgToSend is an object\n        if (channel === this._ioChannels.client) {\n            msgToSend = makeMeAnObject(msgToSend, 'payload')\n        } else if (channel === this._ioChannels.control) {\n            msgToSend = makeMeAnObject(msgToSend, 'uibuilderCtrl')\n            if (!Object.prototype.hasOwnProperty.call(msgToSend, 'uibuilderCtrl')) {\n                msgToSend.uibuilderCtrl = 'manual send'\n            }\n            // help remember where this came from as ctrl msgs can come from server or client\n            msgToSend.from = 'client'\n        }\n\n        /** since 2020-01-02 Added _socketId which should be the same as the _socketId on the server */\n        msgToSend._socketId = this._socket.id\n\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n\n        // Add the originator metadata if required\n        if (originator === '' && this.originator !== '') originator = this.originator\n        if (originator !== '') Object.assign(msgToSend, { '_uib': { 'originator': originator } })\n\n        // If the msg does not have a topic - see if we want to add one\n        if ( !Object.prototype.hasOwnProperty.call(msgToSend, 'topic') ) {\n            // From the default (`uibuilder.set('topic', 'some topic')`)\n            if (this.topic !== undefined && this.topic !== '') msgToSend.topic = this.topic\n            else {\n                // Did the last inbound msg have a topic?\n                if ( Object.prototype.hasOwnProperty.call(this, 'msg') && Object.prototype.hasOwnProperty.call(this.msg, 'topic') ) {\n                    msgToSend.topic = this.msg.topic\n                }\n            }\n        }\n\n        // If a standard send & _ui property exists, make sure to add _ui.from = 'client'\n        if (msgToSend._ui) msgToSend._ui.from = 'client'\n\n        // Track how many messages have been sent & last msg sent\n        let numMsgs\n        if (channel === this._ioChannels.client) {\n            this.set('sentMsg', msgToSend)\n            numMsgs = this.set('msgsSent', ++this.msgsSent)\n        } else if (channel === this._ioChannels.control) {\n            this.set('sentCtrlMsg', msgToSend)\n            numMsgs = this.set('msgsSentCtrl', ++this.msgsSentCtrl)\n        }\n        log('trace', 'Uib:_send', ` Channel '${channel}'. Sending msg #${numMsgs}`, msgToSend)()\n\n        this._socket.emit(channel, msgToSend)\n    } // --- End of Send Msg Fn --- //\n\n    /** Callback handler for messages from Node-RED\n     * NOTE: `this` is the class here rather the `socket` as would be normal since we bind the correct `this` in the call.\n     *       Use this._socket if needing reference to the socket.\n     * @callback ioSetupFromServer Called from ioSetup/this._socket.on(this.#ioChannels.server, this.stdMsgFromServer.bind(this))\n     * @param {object} receivedMsg The msg object from Node-RED\n     * @this Uib\n     */\n    _stdMsgFromServer(receivedMsg) {\n\n        // Make sure that msg is an object & not null\n        receivedMsg = makeMeAnObject(receivedMsg, 'payload')\n\n        // Don't process if the inbound msg is not for us\n        if (receivedMsg._uib && !this._forThis(receivedMsg._uib)) return\n        if (receivedMsg._ui && !this._forThis(receivedMsg._ui)) return\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedMsg)\n\n        // Track how many messages have been received\n        this.set('msgsReceived', ++this.msgsReceived)\n\n        // Emit specific document events on msg receipt that make it easy for coders to use\n        this._msgRcvdEvents(receivedMsg)\n\n        if ( !('_ui' in receivedMsg && !('payload' in receivedMsg)) ) {\n            // Save the msg for further processing\n            this.set('msg', receivedMsg)\n        }\n\n        log('info', 'Uib:ioSetup:stdMsgFromServer', `Channel '${this._ioChannels.server}'. Received msg #${this.msgsReceived}.`, receivedMsg)()\n\n        // ! NOTE: Don't try to handle specialist messages here. See _msgRcvdEvents.\n    } // -- End of websocket receive DATA msg from Node-RED -- //\n\n    /** Process msg._uib.command - Remember to update #extCommands with new allowed commands\n     * @param {object} msg Msg from Node-RED containing a msg._uib object\n     */\n    _uibCommand(msg) {\n        if (!msg._uib || !msg._uib.command) {\n            log('error', 'uibuilder:_uibCommand', 'Invalid command message received', { msg })()\n            msg.payload = msg.error = 'Invalid command message received'\n            this.send(msg)\n            return\n        }\n        const cmd = msg._uib.command\n        // Disallowed command request outputs error and ignores the msg (NB: Case must match)\n        if (!this.#extCommands.includes(cmd.trim())) {\n            log('error', 'Uib:_uibCommand', `Command '${cmd} is not allowed to be called externally`)()\n            return\n        }\n        const prop = msg._uib.prop\n        const value = msg._uib.value\n        const quiet = msg._uib.quiet ?? false\n        let response, info\n\n        // Don't forget to update `#extCommands`, `docs/client-docs/control-from-node-red.md` & `functions.md`\n        switch (cmd) {\n            case 'elementIsVisible': {\n                response = this.elementIsVisible(prop)\n                // info = `Element \"${prop}\" ${response ? 'is visible' : 'is not visible'}`\n                break\n            }\n\n            case 'elementExists': {\n                response = this.elementExists(prop, false)\n                info = `Element \"${prop}\" ${response ? 'exists' : 'does not exist'}`\n                break\n            }\n\n            case 'get': {\n                response = this.get(prop)\n                break\n            }\n\n            case 'getManagedVarList': {\n                if (prop === 'full') response = this.getManagedVarList()\n                else response = Object.values(this.getManagedVarList())\n                break\n            }\n\n            case 'getWatchedVars': {\n                if (prop === 'full') response = this.getWatchedVars()\n                else response = Object.values(this.getWatchedVars())\n                break\n            }\n\n            case 'htmlSend': {\n                response = this.htmlSend('', false)\n                break\n            }\n\n            case 'include': {\n                // include is async\n                response = _ui.include(prop, value)\n                break\n            }\n\n            case 'navigate': {\n                let newUrl\n                if (prop) newUrl = prop\n                else if (value) newUrl = value\n                response = this.navigate(newUrl)\n                break\n            }\n\n            case 'scrollTo': {\n                response = this.scrollTo(prop, value)\n                break\n            }\n\n            case 'set': {\n                let store = false\n                let autoload = false\n                if (msg._uib.options && msg._uib.options.store) {\n                    if (msg._uib.options.store === true) store = true\n                    if (msg._uib.options.autoload === true) autoload = true\n                }\n                response = this.set(prop, value, store, autoload)\n                break\n            }\n\n            case 'showMsg': {\n                response = this.showMsg(value, prop)\n                break\n            }\n\n            case 'showStatus': {\n                response = this.showStatus(value, prop)\n                break\n            }\n\n            case 'uiGet': {\n                response = _ui.uiGet(prop, value)\n                break\n            }\n\n            case 'uiWatch': {\n                response = this.uiWatch(prop)\n                break\n            }\n\n            case 'watchUrlHash': {\n                response = this.watchUrlHash(prop)\n                break\n            }\n\n            default: {\n                log('warning', 'Uib:_uibCommand', `Command '${cmd}' not yet implemented`)()\n                break\n            }\n        }\n\n        if (quiet !== true) {\n            if (response === undefined) {\n                response = `'${prop}' is undefined`\n            }\n            if (Object(response).constructor === Promise) {\n                // response = `'${cmd} ${prop}' submitted. Cmd is async, no response available`\n                response\n                    .then( (/** @type {any} */ data) => {\n                        msg.payload = msg._uib.response = data\n                        msg.info = msg._uib.info = info\n                        if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                        this.send(msg)\n                        return true\n                    })\n                    .catch( err => {\n                        log(0, 'Uib:_uibCommand', 'Error: ', err)()\n                    })\n            } else {\n                msg.payload = msg._uib.response = response\n                msg.info = msg._uib.info = info\n                if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                this.send(msg)\n            }\n        }\n    } // --- end of _uibCommand ---\n\n    /** Send log text to uibuilder's beacon endpoint (works even if socket.io not connected)\n     * @param {string} txtToSend Text string to send\n     * @param {string|undefined} logLevel Log level to use. If not supplied, will default to debug\n     */\n    beaconLog(txtToSend, logLevel) {\n        if (!logLevel) logLevel = 'debug'\n        navigator.sendBeacon('./_clientLog', `${logLevel}::${txtToSend}`)\n    }\n\n    /** Easily send the entire DOM/HTML msg back to Node-RED\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     * @param {boolean} [send] If true (default) directly send response to Node-RED. Is false when calling from Node-RED as a command.\n     * @returns {string} The HTML as a string\n     */\n    htmlSend(originator = '', send = true) {\n        const out = `<!doctype html>\\n${document.documentElement.outerHTML}`\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            payload: out,\n            length: out.length,\n            topic: this.topic,\n        }\n\n        log('trace', 'Uib:htmlSend', 'Sending full HTML to Node-RED', msg)()\n\n        if (send === true) this._send(msg, this._ioChannels.client, originator)\n        return out\n    }\n\n    /** Send log info back to Node-RED over uibuilder's websocket control output (Port #2)\n     * @param {...*} arguments All arguments passed to the function are added to the msg.payload\n     */\n    logToServer() {\n        this.sendCtrl({\n            uibuilderCtrl: 'client log message',\n            payload: arguments,\n            // \"version\":\"6.1.0-iife.min\",\n            _socketId: this._socket.id,\n            // \"ip\":\"::1\",\n            clientId: this.clientId,\n            tabId: this.tabId,\n            // \"url\":\"esp-test\",\n            pageName: this.pageName,\n            connections: this.connectedNum,\n            lastNavType: this.lastNavType,\n        })\n    }\n\n    /** Easily send a msg back to Node-RED on a DOM event\n     * @example In plain HTML/JavaScript\n     *    `<button id=\"button1\" name=\"button 1\" data-fred=\"jim\"></button>`\n     *    $('#button1').onclick = (evt) => {\n     *      uibuilder.eventSend(evt)\n     *    }\n     * @example\n     * In VueJS: `<b-button id=\"myButton1\" @click=\"doEvent\" data-something=\"hello\"></b-button>`\n     * In VueJS methods: `doEvent: uibuilder.eventSend,`\n     *\n     * All `data-` attributes will be passed back to Node-RED,\n     *    use them instead of arguments in the click function.\n     *    All target._ui custom properties are also passed back to Node-RED.\n     *\n     * @param {MouseEvent|any} domevent DOM Event object\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    eventSend(domevent, originator = '') { // eslint-disable-line sonarjs/cognitive-complexity\n        // @ts-ignore Handle case where vue messes up `this`\n        if ( this.$attrs ) {\n            log('error', 'Uib:eventSend', '`this` has been usurped by VueJS. Make sure that you wrap the call in a function: `doEvent: function (event) { uibuilder.eventSend(event) },`' )()\n            return\n        }\n        if (!domevent && !event) {\n            log('warn', 'Uib:eventSend', 'Neither the domevent nor the hidden event properties are set. You probably called this function directly rather than applying to an on click event.' )()\n            return\n        }\n        // Handle no argument, e.g. <button onClick=\"uibuilder.eventSend()\"> - event is a hidden variable when fn used in addEventListener\n        if (!domevent || !domevent.constructor) domevent = event\n\n        // The argument must be a DOM event\n        if ((!domevent.constructor.name.endsWith('Event')) || (!domevent.currentTarget)) {\n            log('warn', 'Uib:eventSend', `ARGUMENT NOT A DOM EVENT - use data attributes not function arguments to pass data. Arg Type: ${domevent.constructor.name}`, domevent)()\n            return\n        }\n\n        // Prevent default event action\n        domevent.preventDefault()\n\n        // The target element\n        const target = domevent.currentTarget\n\n        // Get target properties - only shows custom props not element default ones\n        const props = {}\n        Object.keys(target).forEach( key => {\n            if (key.startsWith('_')) return // Exclude private\n            props[key] = target[key]\n        })\n\n        // Attempt to get target attributs - can fail for certain target types\n        const ignoreAttribs = ['class', 'id', 'name']\n        let attribs\n        try {\n            attribs = Object.assign({},\n                ...Array.from(target.attributes,\n                    ( { name, value } ) => {\n                        if ( !ignoreAttribs.includes(name) ) {\n                            return ({ [name]: value })\n                        }\n                        return undefined\n                    }\n                )\n            )\n        } catch (e) {}\n\n        // If target embedded in a form, include the form data\n        let form\n        const frmVals = []\n        if ( target.form ) {\n            form = {}\n            form.valid = target.form.checkValidity()\n            Object.values(target.form).forEach( (frmEl, i) => {\n                const id = frmEl.id !== '' ? frmEl.id : (frmEl.name !== '' ? frmEl.name : `${i}-${frmEl.type}`)\n\n                // We must have both an element id (we may have forced one above) AND\n                // the element type MUST be not undefined - to allow for the extra properties added by frameworks such as Svelte\n                if (id !== '' && frmEl.type) {\n                    // Stupid HTML doesn't use value attrib for checkboxes. So override if value is set to default\n                    if ('checked' in frmEl && frmEl.value === 'on') frmEl.value = frmEl.checked.toString()\n\n                    frmVals.push( { key: id, val: frmEl.value } ) // simplified for addition to msg.payload\n\n                    form[id] = {\n                        'id': frmEl.id,\n                        'name': frmEl.name,\n                        'value': frmEl.value,\n                        'valid': frmEl.checkValidity(),\n                        'type': frmEl.type,\n                    }\n\n                    if (form[id].valid === false) {\n                        const v = frmEl.validity\n                        form[id].validity = {\n                            badInput: v.badInput === true ? v.badInput : undefined,\n                            customError: v.customError === true ? v.customError : undefined,\n                            patternMismatch: v.patternMismatch === true ? v.patternMismatch : undefined,\n                            rangeOverflow: v.rangeOverflow === true ? v.rangeOverflow : undefined,\n                            rangeUnderflow: v.rangeUnderflow === true ? v.rangeUnderflow : undefined,\n                            stepMismatch: v.stepMismatch === true ? v.stepMismatch : undefined,\n                            tooLong: v.tooLong === true ? v.tooLong : undefined,\n                            tooShort: v.tooShort === true ? v.tooShort : undefined,\n                            typeMismatch: v.typeMismatch === true ? v.typeMismatch : undefined,\n                            valueMissing: v.valueMissing === true ? v.valueMissing : undefined,\n                        }\n                    }\n\n                    if (frmEl.dataset) form[id].data = frmEl.dataset\n                }\n            })\n        }\n\n        // Check for CSS Classes\n        let classes\n        try {\n            classes = Array.from(target.classList)\n        } catch (e) {}\n\n        // Each `data-xxxx` attribute is added as a property\n        let payload = { ...target.dataset }\n\n        // Handle Notification events\n        let nprops\n        if ( Object.prototype.toString.call(target) === '[object Notification]') {\n            // Fixed payload for convenience\n            payload = `notification-${target.userAction}`\n            // Capture the notification properties\n            nprops = {\n                // userAction: target.userAction, // uib custom prop: click, close or error\n                actions: target.actions,\n                badge: target.badge,\n                body: target.body,\n                data: target.data,\n                dir: target.dir,\n                icon: target.icon,\n                image: target.image,\n                lang: target.lang,\n                renotify: target.renotify,\n                requireInteraction: target.requireInteraction,\n                silent: target.silent,\n                tag: target.tag,\n                timestamp: target.timestamp,\n                title: target.title,\n                vibrate: target.vibrate,\n            }\n        }\n        // console.log(Object.prototype.toString.call(target))\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            // - this may be an empty Object if no data attributes defined\n            payload: payload,\n\n            _ui: {\n                type: 'eventSend',\n                id: target.id !== '' ? target.id : undefined,\n                name: target.name !== '' ? target.name : undefined,\n                slotText: target.textContent ? target.textContent.substring(0, 255) : undefined,\n\n                form: form,\n                props: props,\n                attribs: attribs,\n                classes: classes,\n\n                notification: nprops,\n\n                event: domevent.type,\n                altKey: domevent.altKey,\n                ctrlKey: domevent.ctrlKey,\n                shiftKey: domevent.shiftKey,\n                metaKey: domevent.metaKey,\n\n                pointerType: domevent.pointerType,\n                nodeName: target.nodeName,\n\n                clientId: this.clientId,\n                pageName: this.pageName,\n                tabId: this.tabId,\n            }\n        }\n\n        if (frmVals.length > 0) {\n            frmVals.forEach( entry => {\n                msg.payload[entry.key] = entry.val\n            })\n        }\n\n        if (domevent.type === 'change') {\n            // Checkboxes don't have a value!!\n            msg._ui.newValue = msg.payload.value = 'checked' in target ? target.checked : domevent.target.value\n        }\n\n        log('trace', 'Uib:eventSend', 'Sending msg to Node-RED', msg)()\n        if (target.dataset && target.dataset.length === 0) log('warn', 'Uib:eventSend', 'No payload in msg. data-* attributes should be used.')()\n\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Send a standard message to NR\n     * @example uibuilder.send({payload:'Hello'})\n     * @param {object} msg Message to send\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    send(msg, originator = '') {\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Send a control msg to NR\n     * @param {object} msg Message to send\n     */\n    sendCtrl(msg) {\n        this._send(msg, this._ioChannels.control)\n    }\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Socket.IO -------- //\n\n    /** Return the Socket.IO namespace\n     * The cookie method is the most reliable but this falls back to trying to work it\n     * out from the URL if cookies not available. That won't work if page is in a sub-folder.\n     * since 2017-10-21 Improve method to cope with more complex paths - thanks to Steve Rickus @shrickus\n     * since 2017-11-10 v1.0.1 Check cookie first then url. cookie works even if the path is more complex (e.g. sub-folder)\n     * since 2020-01-25 Removed httpRoot from namespace to prevent proxy induced errors\n     * @returns {string} Socket.IO namespace\n     */\n    _getIOnamespace() {\n\n        let ioNamespace\n\n        /** Try getting the namespace cookie. */\n        ioNamespace = this.cookies['uibuilder-namespace']\n\n        // if it wasn't available, try using the current url path\n        if (ioNamespace === undefined || ioNamespace === '') {\n            // split url path & eliminate any blank elements, and trailing or double slashes\n            const u = window.location.pathname.split('/')\n                .filter(function (t) { return t.trim() !== '' })\n\n            /** since v2.0.5 Extra check for 0 length, Issue #73. since 2017-11-06 If the last element of the path is an .html file name, remove it */\n            if (u.length > 0 && (u[u.length - 1].endsWith('.html'))) u.pop()\n\n            // Get the last part of the url path, this MUST match the namespace in uibuilder\n            ioNamespace = u.pop()\n\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via url path: ${ioNamespace}`)()\n        } else {\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via cookie: ${ioNamespace}`)()\n        }\n\n        this.url = ioNamespace\n        // Namespace HAS to start with a /\n        ioNamespace = '/' + ioNamespace\n\n        log('trace', 'uibuilder.module.js:getIOnamespace', `Final Socket.IO namespace: ${ioNamespace}`)()\n\n        return ioNamespace\n    } // --- End of set IO namespace --- //\n\n    /** Function used to check whether Socket.IO is connected to the server, reconnect if not (recursive)\n     * @param {number} [delay] Initial delay before checking (ms). Default=2000ms\n     * @param {number} [factor] Multiplication factor for subsequent checks (delay*factor). Default=1.5\n     * @param {number} [depth] Recursion depth\n     * @returns {boolean|undefined} Whether or not Socket.IO is connected to uibuilder in Node-RED\n     */\n    _checkConnect(delay, factor, depth = 1) {\n        if ( navigator.onLine === false ) return // Don't bother if we know we are offline\n\n        if (!delay) delay = this.retryMs\n        if (!factor) factor = this.retryFactor\n\n        log('trace', 'Uib:checkConnect', `Checking connection. Connected: ${this._socket.connected}. Timer: ${this.#timerid}. Depth: ${depth}. Delay: ${delay}. Factor: ${factor}`, this._socket)()\n\n        // If we are connected ...\n        if (this._socket.connected === true) {\n            // Clear the setTimeout\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this.set('ioConnected', true)\n            this.set('socketError', null)\n            return true\n        }\n\n        // ... we aren't connected so:\n        this.set('ioConnected', false)\n\n        // we only want one running at a time\n        if (this.#timerid) window.clearTimeout(this.#timerid)\n\n        // Create the new timer\n        this.#timerid = window.setTimeout(() => {\n            log('warn', 'Uib:checkConnect:setTimeout', `Socket.IO reconnection attempt. Current delay: ${delay}. Depth: ${depth}`)()\n\n            // this is necessary sometimes when the socket fails to connect on startup\n            this._socket.close()\n\n            // Try to reconnect\n            this._socket.connect()\n\n            // don't need to check whether we have connected as the timer will have been cleared if we have\n            this.#timerid = null\n\n            // @ts-ignore Create new timer for next time round with extended delay\n            this._checkConnect(delay * factor, factor, depth++)\n        }, delay)\n\n        return false\n    } // --- End of checkConnect Fn--- //\n\n    // See message handling section for msg receipt handlers\n\n    /** Called by _ioSetup when Socket.IO connects to Node-RED */\n    _onConnect() {\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n        log('info', 'Uib:ioSetup', `\u2705 SOCKET CONNECTED. Connection count: ${this.connectedNum}, Is a Recovery?: ${this._socket.recovered}. \\nNamespace: ${this.ioNamespace}`)()\n        this._dispatchCustomEvent('uibuilder:socket:connected', { 'numConnections': this.connectedNum, 'isRecovery': this._socket.recovered })\n\n        this._checkConnect() // resets any reconnection timers & sets connected flag\n    }\n\n    /** Called by _ioSetup when Socket.IO disconnects from Node-RED\n     * @param {string} reason Disconnection title\n     */\n    _onDisconnect(reason) {\n        // reason === 'io server disconnect' - redeploy of Node instance\n        // reason === 'transport close' - Node-RED terminating\n        // reason === 'ping timeout' - didn't receive a pong response?\n        log('info', 'Uib:ioSetup:socket-disconnect', `\u26D4 Socket Disconnected. Reason: ${reason}`)()\n\n        this._dispatchCustomEvent('uibuilder:socket:disconnected', reason)\n\n        /** A workaround for SIO's failure to reconnect after a disconnection */\n        this._checkConnect()\n    }\n\n    /** Setup Socket.io\n     * since v2.0.0-beta2 Moved to a function and called by the user (uibuilder.start()) so that namespace & path can be passed manually if needed\n     * @returns {boolean} Attaches socket.io manager to self._socket and updates self.ioNamespace & self.ioPath as needed\n     */\n    _ioSetup() {\n\n        // Just a notification, actual load is done outside the class (see start of file)\n        if (io === undefined) {\n            log('error', 'Uib:ioSetup', 'Socket.IO client not loaded, Node-RED comms will not work')()\n            return false\n        }\n\n        // If socket is already set up, close it and remove all of the listeners\n        if (this._socket) {\n            log('trace', 'Uib:ioSetup', 'Removing listeners in preparation for redoing Socket.IO connections')()\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this._socket.close()\n            this._socket.offAny()\n            this._socket = undefined\n            this.set('ioConnected', false)\n        }\n\n        // Update the URL path to make sure we have the right one\n        this.socketOptions.path = this.ioPath\n\n        // NOTE: this._socket.auth is now set by callback and so automatically updated for each client (re)connection. No need to set here\n\n        // Create the socket - make sure client uses Socket.IO version from the uibuilder module (using path)\n        log('trace', 'Uib:ioSetup', `About to create IO object. Transports: [${this.socketOptions.transports.join(', ')}]`)()\n        this._socket = io(this.ioNamespace, this.socketOptions)\n\n        /** When the socket is connected - set ioConnected flag and reset connect timer  */\n        this._socket.on('connect', this._onConnect.bind(this))\n\n        // RECEIVE a STANDARD, non-control msg from Node-RED server\n        this._socket.on(this._ioChannels.server, this._stdMsgFromServer.bind(this))\n\n        // RECEIVE a CONTROL msg from Node-RED server - see also sendCtrl()\n        this._socket.on(this._ioChannels.control, this._ctrlMsgFromServer.bind(this))\n\n        // When the socket is disconnected ..............\n        this._socket.on('disconnect', this._onDisconnect.bind(this))\n\n        // Socket.io connection error - probably the wrong ioPath - or client is offline\n        this._socket.on('connect_error', (err) => {\n            if ( navigator.onLine === false ) return // Don't bother with an error if we know we are offline\n            log('error', 'Uib:ioSetup:connect_error', `\u274C Socket.IO Connect Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket connect error processing ---\n\n        // Socket.io error - from the server (socket.use middleware triggered an error response)\n        this._socket.on('error', (err) => {\n            log('error', 'Uib:ioSetup:error', `\u274C Socket.IO Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket error processing ---\n\n        // Ensure we are connected, retry if not\n        this._checkConnect()\n\n        return true\n\n        /* We really don't need these, just for interest\n            self._socket.io.on('packet', function onPacket(data){\n                // we get one of these for each REAL msg (not ping/pong)\n                console.debug('PACKET', data)\n            })\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n                //console.dir(self._socket)\n            }) // --- End of socket pong processing ---\n            self._socket.io.on('packet', function(data){\n                // We get one of these for actual messages, not ping/pong\n                console.debug('PACKET', data)\n            })\n            self._socket.on('connect_timeout', function(timeout) {\n                console.debug('SOCKET CONNECT TIMEOUT - Namespace: ' + ioNamespace + ', Timeout: ' + timeout)\n            }) // --- End of socket connect timeout processing ---\n            self._socket.on('reconnect', function(attemptNum) {\n                console.debug('SOCKET RECONNECTED - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect processing ---\n            self._socket.on('reconnect_attempt', function(attemptNum) {\n                console.debug('SOCKET RECONNECT ATTEMPT - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect_attempt processing ---\n            self._socket.on('reconnecting', function(attemptNum) {\n                console.debug('SOCKET RECONNECTING - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnecting processing ---\n            self._socket.on('reconnect_error', function(err) {\n                console.debug('SOCKET RECONNECT ERROR - Namespace: ' + ioNamespace + ', Reason: ' + err.message)\n                //console.dir(err)\n            }) // --- End of socket reconnect_error processing ---\n            self._socket.on('reconnect_failed', function() {\n                console.debug('SOCKET RECONNECT FAILED - Namespace: ' + ioNamespace)\n            }) // --- End of socket reconnect_failed processing ---\n            self._socket.on('ping', function() {\n                console.debug('SOCKET PING')\n            }) // --- End of socket ping processing ---\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n            }) // --- End of socket pong processing ---\n            */\n    } // ---- End of ioSetup ---- //\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Class construction & startup method -------- //\n\n    constructor() {\n        log('trace', 'Uib:constructor', 'Starting')()\n\n        // Track whether the client is online or offline\n        window.addEventListener('offline', (e) => {\n            this.set('online', false)\n            this.set('ioConnected', false)\n            log('warn', 'Browser', 'DISCONNECTED from network')()\n        })\n        window.addEventListener('online', (e) => {\n            this.set('online', true)\n            log('warn', 'Browser', 'Reconnected to network')()\n            this._checkConnect()\n        })\n\n        document.cookie.split(';').forEach((c) => {\n            const splitC = c.split('=')\n            this.cookies[splitC[0].trim()] = splitC[1]\n        })\n\n        /** Client ID set by uibuilder - lasts until browser profile is closed, applies to all tabs */\n        this.set('clientId', this.cookies['uibuilder-client-id'])\n        log('trace', 'Uib:constructor', 'Client ID: ', this.clientId)()\n\n        /** Tab ID - lasts while the tab is open (even if reloaded)\n         * WARNING: Duplicating a tab retains the same tabId\n         */\n        this.set('tabId', window.sessionStorage.getItem('tabId'))\n        if (!this.tabId) {\n            this.set('tabId', `t${Math.floor(Math.random() * 1000000)}`)\n            window.sessionStorage.setItem('tabId', this.tabId)\n        }\n\n        // document.addEventListener('pagehide', (event) => {\n        //     // console.log(`pagehide. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pagehide. From Cache?: ${event.persisted}`)\n        // })\n        // document.addEventListener('pageshow', (event) => {\n        //     // console.log(`pageshow. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pageshow. From Cache?: ${event.persisted}`)\n        // })\n        document.addEventListener('load', () => {\n            this.set('isVisible', true)\n        })\n        document.addEventListener('visibilitychange', () => {\n            // hidden=unload, minimise. visible=un-minimise (not fired on load)\n            this.set('isVisible', document.visibilityState === 'visible')\n            this.sendCtrl({ uibuilderCtrl: 'visibility', isVisible: this.isVisible })\n            // navigator.userActivation is experimental Chromium only\n            // console.log('visibilitychange', ':', `Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n            // navigator.sendBeacon('./_clientLog', `${(new Date()).toISOString()} Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n        })\n\n        // Set a listener to update showStatus table if it is active\n        document.addEventListener('uibuilder:propertyChanged', (event) => {\n            if (!this.#isShowStatus) return\n\n            // @ts-ignore\n            if (event.detail.prop in this.#showStatus) {\n                // @ts-ignore\n                document.querySelector(`td[data-vartype=\"${event.detail.prop}\"]`).innerText = JSON.stringify(event.detail.value)\n            }\n        })\n\n        this.set('ioNamespace', this._getIOnamespace())\n\n        //#region - Try to make sure client uses Socket.IO client version from the uibuilder module (using cookie or path) @since v2.0.0 2019-02-24 allows for httpNodeRoot\n\n        /** httpNodeRoot (to set path) */\n        if ('uibuilder-webRoot' in this.cookies) {\n            this.set('httpNodeRoot', this.cookies['uibuilder-webRoot'])\n            log('trace', 'Uib:constructor', `httpNodeRoot set by cookie to \"${this.httpNodeRoot}\"`)()\n        } else {\n            // split current url path, eliminate any blank elements and trailing or double slashes\n            const fullPath = window.location.pathname.split('/').filter(function (t) { return t.trim() !== '' })\n            /** handle url includes file name - @since v2.0.5 Extra check for 0 length, Issue #73. */\n            if (fullPath.length > 0 && fullPath[fullPath.length - 1].endsWith('.html')) fullPath.pop()\n            fullPath.pop() // gives the last path section of the url\n            this.set('httpNodeRoot', `/${fullPath.join('/')}`)\n            log('trace', '[Uib:constructor]', `httpNodeRoot set by URL parsing to \"${this.httpNodeRoot}\". NOTE: This may fail for pages in sub-folders.`)()\n        }\n        this.set('ioPath', urlJoin(this.httpNodeRoot, Uib._meta.displayName, 'vendor', 'socket.io'))\n        log('trace', 'Uib:constructor', `ioPath: \"${this.ioPath}\"`)()\n\n        //#endregion\n\n        // Work out pageName\n        this.set('pageName', window.location.pathname.replace(`${this.ioNamespace}/`, ''))\n        if ( this.pageName.endsWith('/') ) this.set('pageName', `${this.pageName}index.html`)\n        if ( this.pageName === '' ) this.set('pageName', 'index.html')\n\n        // Attempt to restore autoload variables\n        try {\n            const autoloadVars = this.getStore('_uibAutoloadVars')\n            if (Object.keys(autoloadVars).length > 0) {\n                Object.keys(autoloadVars).forEach( (id) => {\n                    this.set(id, this.getStore(id))\n                })\n            }\n        } catch (e) {}\n\n        this._dispatchCustomEvent('uibuilder:constructorComplete')\n\n        log('trace', 'Uib:constructor', 'Ending')()\n    }\n\n    /** Start up Socket.IO comms and listeners\n     * This has to be done separately because if running from a web page in a sub-folder of src/dist, uibuilder cannot\n     * necessarily work out the correct ioPath to use.\n     * Also, if cookies aren't permitted in the browser, both ioPath and ioNamespace may need to be specified.\n     * @param {object} [options] The start options object.\n     * @returns {void}\n     */\n    start(options) {\n        log('trace', 'Uib:start', 'Starting')()\n\n        // Cancel the msg event handler if already present\n        if ( this.#MsgHandler ) this.cancelChange('msg', this.#MsgHandler)\n\n        if (this.started === true) {\n            log('info', 'Uib:start', 'Start function already called. Resetting Socket.IO and msg handler.')()\n        }\n\n        log('log', 'Uib:start', 'Cookies: ', this.cookies, `\\nClient ID: ${this.clientId}`)()\n        log('trace', 'Uib:start', 'ioNamespace: ', this.ioNamespace, `\\nioPath: ${this.ioPath}`)()\n\n        // Handle options\n        if (options) {\n            if (options.ioNamespace) this.set('ioNamespace', options.ioNamespace)\n            if (options.ioPath) this.set('ioPath', options.ioPath)\n            if (options.nopolling && this.socketOptions.transports[0] === 'polling') this.socketOptions.transports.shift()\n            // See below for handling of options.loadStylesheet\n        }\n\n        // Do we need to load styles?\n        if ( document.styleSheets.length >= 1 || (document.styleSheets.length === 1 && document.styleSheets[0].cssRules.length === 0) ) {\n            log('info', 'Uib:start', 'Styles already loaded so not loading uibuilder default styles.')()\n        } else {\n            if (options && options.loadStylesheet === false) log('info', 'Uib:start', 'No styles loaded & options.loadStylesheet === false.')()\n            else {\n                log('info', 'Uib:start', 'No styles loaded, loading uibuilder default styles.')()\n                this.loadStyleSrc(`${this.httpNodeRoot}/uibuilder/uib-brand.min.css`)\n            }\n        }\n\n        /** Handle specialist messages like reload and _ui -> Moved to _msgRcvdEvents */\n\n        // Track last browser navigation type: navigate, reload, back_forward, prerender\n        // TODO Needs more work - updates on navigation needed?\n        const [entry] = performance.getEntriesByType('navigation')\n        // @ts-ignore\n        this.set('lastNavType', entry.type)\n\n        // Start up (or restart) Socket.IO connections and listeners. Returns false if io not found\n        this.set('started', this._ioSetup())\n\n        if ( this.started === true ) {\n            log('trace', 'Uib:start', 'Start completed. Socket.IO client library loaded.')()\n        } else {\n            log('error', 'Uib:start', 'Start completed. ERROR: Socket.IO client library NOT LOADED.')()\n        }\n\n        // Watch for URL hash changes in case using a front-end router. Updates watched var `urlHash` and socket.io `auth.urlHash`\n        this._watchHashChanges()\n\n        // Check if Vue is present (used for dynamic UI processing)\n        if (window['Vue']) {\n            this.set('isVue', true)\n            try {\n                this.set('vueVersion', window['Vue'].version)\n            } catch (e) { }\n            log('trace', 'Uib:start', `VueJS is loaded. Version: ${this.vueVersion}`)()\n        } else {\n            log('trace', 'Uib:start', 'VueJS is not loaded.')()\n        }\n\n        // Check if DOMPurify library is loaded\n        if (window['DOMPurify']) {\n            this.set('purify', true)\n            log('trace', 'Uib:start', 'DOMPurify is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'DOMPurify is not loaded.')()\n        }\n        // Check if Markdown-IT library is loaded\n        if (window['markdownit']) {\n            this.set('markdown', true)\n            log('trace', 'Uib:start', 'Markdown-IT is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'Markdown-IT is not loaded.')()\n        }\n\n        // if (window['DOMPurify']) {\n        //     this.set('purify', true)\n        //     log('trace', 'Uib:start', 'DOMPurify is loaded.')\n        // } else {\n        //     log('trace', 'Uib:start', 'DOMPurify is not loaded.')\n        // }\n\n        // Set up msg listener for the optional showMsg\n        this.onChange('msg', (msg) => {\n            if (this.#isShowMsg === true) {\n                const eMsg = document.getElementById('uib_last_msg')\n                if (eMsg) eMsg.innerHTML = this.syntaxHighlight(msg)\n            }\n        })\n\n        this._dispatchCustomEvent('uibuilder:startComplete')\n    }\n\n    //#endregion -------- ------------ -------- //\n} // ==== End of Class Uib ====\n\n//#region --- Wrap up - get things started ---\n\n// Create an instance (we will only ever want one)\nconst uibuilder = new Uib()\n\n// Assign reference to the instance to the global `window` object\n// Only useful if loading via <script> tag - prefer loading via `import uibuilder from ...`\nif (!window['uibuilder']) {\n    window['uibuilder'] = uibuilder\n} else {\n    log('error', 'uibuilder.module.js', '`uibuilder` already assigned to window. Have you tried to load it more than once?')\n}\nif (!window['uib']) {\n    window['uib'] = uibuilder\n} else {\n    log('warn', 'uibuilder.module.js', '`uib` shortcut already assigned to window.')\n}\n\n// Assign `$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$`.\nif (!window['$']) {\n    /** @type {HTMLElement} */\n    window['$'] = window['uibuilder'].$ // document.querySelector.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` or `uib.$` instead.')\n}\n// Assign `$$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$$']) {\n    /** @type {HTMLElement} */\n    window['$$'] = window['uibuilder'].$$ // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` or `uib.$$` instead.')\n}\n\n// Assign `$ui` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$ui']) {\n    /** @type {HTMLElement} */\n    window['$ui'] = window['uibuilder'].$ui // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$ui`, it is already in use. Use `uibuilder.$ui` or `uib.$ui` instead.')\n}\n\n// Can import as `import uibuilder from ...` OR `import {uibuilder} from ...`\nexport { uibuilder }\nexport default uibuilder\n\n// Attempt to run start fn\nuibuilder.start()\n\n// Add the class as a new Custom Element to the window object\ncustomElements.define('uib-var', UibVar)\n\n//#endregion --- Wrap up ---\n\n// EOF\n", "/** A zero dependency web component that will display a managed uibuilder variable.\n *\n * Version: 0.0.1 2023-10-07\n *\n * ToDo:\n * -\n */\n/*\n  Copyright (c) 2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n// const template = document.createElement('template')\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<link type=\"text/css\" rel=\"stylesheet\" href=\"\"../uibuilder/uib-brand.min.css\"\" media=\"all\"><span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`\n// {/* <style>@import url(\"../uibuilder/uib-brand.min.css\");</style><span></span> */}\n// `\n\nexport default class UibVar extends HTMLElement {\n    //#region --- Class Properties ---\n    /** @type {string} Name of the uibuilder mangaged variable to use */\n    variable\n    /** Current value of the watched variable */\n    value\n    /** Whether to output if the variable is undefined */\n    undefined = false\n    /** Whether to send update value to Node-RED on change */\n    report = false\n    /** What is the value type */\n    type = 'plain'\n    /** what are the available types? */\n    types = ['plain', 'html', 'markdown', 'object']\n\n    /** Mini jQuery-like shadow dom selector (see constructor) */\n    $\n    \n    /** Holds a count of how many instances of this component are on the page */\n    static _iCount = 0\n    /** @type {Array<string>} List of all of the html attribs (props) listened to */\n    static props = ['name', 'id', 'variable', 'undefined', 'report', 'type']\n    //#endregion --- Class Properties ---\n\n    constructor() {\n        super()\n        this.shadow = this.attachShadow({ mode: 'open', delegatesFocus: true })\n            // .append(template.content.cloneNode(true))\n\n        this.$ = this.shadowRoot.querySelector.bind(this.shadowRoot)\n\n        // Apply external styles to the shadow dom\n        this.css = document.createElement(\"link\")\n        this.css.setAttribute(\"type\", \"text/css\")\n        this.css.setAttribute(\"rel\", \"stylesheet\")\n        this.css.setAttribute(\"href\", \"../uibuilder/uib-brand.min.css\")\n\n        this.dispatchEvent(new Event(`uib-var:construction`, { bubbles: true, composed: true }))\n    }\n\n    // Makes HTML attribute change watched\n    static get observedAttributes() {\n        return UibVar.props\n    }\n\n    /** NOTE: On initial startup, this is called for each watched attrib set in HTML - BEFORE connectedCallback is called  */\n    attributeChangedCallback(attrib, oldVal, newVal) {\n        if ( oldVal === newVal ) return\n\n        switch (attrib) {\n            case 'variable': {\n                if (newVal === '') throw new Error('[uib-var] Attribute \"variable\" MUST be set to a UIBUILDER managed variable name')\n                this.variable = newVal\n                this.doWatch()\n                break\n            }\n            case 'undefined': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.undefined = true\n                else this.undefined = false\n                break\n            }\n            case 'report': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.report = true\n                else this.report = false\n                break\n            }\n            case 'type': {\n                if (newVal === '' || !this.types.includes(newVal.toLowerCase())) this.type = 'plain'\n                else this.type = newVal\n                break\n            }\n\n            default: {\n                this[attrib] = newVal\n                break\n            }\n        }\n    } // --- end of attributeChangedCallback --- //\n\n    // Runs when an instance is added to the DOM\n    connectedCallback() {\n        // Make sure instance has an ID. Create an id from name or calculation if needed\n        if (!this.id) {\n            if (!this.name) this.name = this.getAttribute('name')\n            if (this.name) this.id = this.name.toLowerCase().replace(/\\s/g, '_')\n            else this.id = `uib-var-${++UibVar._iCount}`\n        }\n    }  // ---- end of connectedCallback ---- //\n\n    // Runs when an instance is removed from the DOM\n    // disconnectedCallback() {} // ---- end of disconnectedCallback ---- //\n\n    /** Process changes to the required uibuilder variable */\n    doWatch() {\n        if (!this.variable) throw new Error('No variable name provided')\n        // if (!window['uibuilder']) throw new Error('UIBUILDER client library not loaded - this component must be loaded AFTER the UIBUILDER library')\n\n        this.value = window['uibuilder'].get(this.variable)\n        this.varDom()\n\n        // Watch for changes in the variable\n        window['uibuilder'].onChange(this.variable, (val) => {\n            this.value = val\n            this.varDom()\n            if (this.report === true) window['uibuilder'].send({topic: this.variable, payload: this.value || undefined})\n        })\n    }\n\n    /** Convert this.value to DOM output */\n    varDom() {\n        // If user doesn't want to show undefined vars, allow the component slot to show instead\n        if (this.value === undefined && this.undefined !== true) { \n            this.shadow.innerHTML = '<slot></slot>'\n            return\n        }\n        \n        let val = this.value\n\n        // console.log('\uD83E\uDDEA varDOM: ', val, typeof val, this.type)\n\n        switch (this.type) {\n            case 'markdown': {\n                this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(window['uibuilder'].convertMarkdown(val))\n                break\n            }\n        \n            case 'object': {\n                // console.log(window['uibuilder'].syntaxHighlight(val))\n                this.shadow.innerHTML = `<pre class=\"syntax-highlight\">${window['uibuilder'].syntaxHighlight(val)}</pre>`\n                break\n            }\n        \n            case 'plain':\n            case 'html':\n            default: {\n                const t = typeof val\n                if (Array.isArray(val) || t === '[object Object]' || t === 'object') {\n                    try {\n                        this.shadow.innerHTML = JSON.stringify(val)\n                    } catch (e) {\n                        this.shadow.innerHTML = val\n                    }\n                } else {\n                    this.shadow.innerHTML = val\n                }\n                break\n            }\n        }\n\n        this.shadow.appendChild(this.css)\n        // this.$('span').innerHTML = window['uibuilder'].sanitiseHTML(val)\n        // this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(val)\n    }\n}\n\n// Add the class as a new Custom Element to the window object \n// customElements.define('uib-var', UibVar)\n", "const PACKET_TYPES = Object.create(null); // no Map = no polyfill\nPACKET_TYPES[\"open\"] = \"0\";\nPACKET_TYPES[\"close\"] = \"1\";\nPACKET_TYPES[\"ping\"] = \"2\";\nPACKET_TYPES[\"pong\"] = \"3\";\nPACKET_TYPES[\"message\"] = \"4\";\nPACKET_TYPES[\"upgrade\"] = \"5\";\nPACKET_TYPES[\"noop\"] = \"6\";\nconst PACKET_TYPES_REVERSE = Object.create(null);\nObject.keys(PACKET_TYPES).forEach(key => {\n    PACKET_TYPES_REVERSE[PACKET_TYPES[key]] = key;\n});\nconst ERROR_PACKET = { type: \"error\", data: \"parser error\" };\nexport { PACKET_TYPES, PACKET_TYPES_REVERSE, ERROR_PACKET };\n", "import { PACKET_TYPES } from \"./commons.js\";\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        Object.prototype.toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\n// ArrayBuffer.isView method is not defined in IE10\nconst isView = obj => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj && obj.buffer instanceof ArrayBuffer;\n};\nconst encodePacket = ({ type, data }, supportsBinary, callback) => {\n    if (withNativeBlob && data instanceof Blob) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(data, callback);\n        }\n    }\n    else if (withNativeArrayBuffer &&\n        (data instanceof ArrayBuffer || isView(data))) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(new Blob([data]), callback);\n        }\n    }\n    // plain string\n    return callback(PACKET_TYPES[type] + (data || \"\"));\n};\nconst encodeBlobAsBase64 = (data, callback) => {\n    const fileReader = new FileReader();\n    fileReader.onload = function () {\n        const content = fileReader.result.split(\",\")[1];\n        callback(\"b\" + (content || \"\"));\n    };\n    return fileReader.readAsDataURL(data);\n};\nfunction toArray(data) {\n    if (data instanceof Uint8Array) {\n        return data;\n    }\n    else if (data instanceof ArrayBuffer) {\n        return new Uint8Array(data);\n    }\n    else {\n        return new Uint8Array(data.buffer, data.byteOffset, data.byteLength);\n    }\n}\nlet TEXT_ENCODER;\nexport function encodePacketToBinary(packet, callback) {\n    if (withNativeBlob && packet.data instanceof Blob) {\n        return packet.data\n            .arrayBuffer()\n            .then(toArray)\n            .then(callback);\n    }\n    else if (withNativeArrayBuffer &&\n        (packet.data instanceof ArrayBuffer || isView(packet.data))) {\n        return callback(toArray(packet.data));\n    }\n    encodePacket(packet, false, encoded => {\n        if (!TEXT_ENCODER) {\n            TEXT_ENCODER = new TextEncoder();\n        }\n        callback(TEXT_ENCODER.encode(encoded));\n    });\n}\nexport { encodePacket };\n", "// imported from https://github.com/socketio/base64-arraybuffer\nconst chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';\n// Use a lookup table to find the index.\nconst lookup = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);\nfor (let i = 0; i < chars.length; i++) {\n    lookup[chars.charCodeAt(i)] = i;\n}\nexport const encode = (arraybuffer) => {\n    let bytes = new Uint8Array(arraybuffer), i, len = bytes.length, base64 = '';\n    for (i = 0; i < len; i += 3) {\n        base64 += chars[bytes[i] >> 2];\n        base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];\n        base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];\n        base64 += chars[bytes[i + 2] & 63];\n    }\n    if (len % 3 === 2) {\n        base64 = base64.substring(0, base64.length - 1) + '=';\n    }\n    else if (len % 3 === 1) {\n        base64 = base64.substring(0, base64.length - 2) + '==';\n    }\n    return base64;\n};\nexport const decode = (base64) => {\n    let bufferLength = base64.length * 0.75, len = base64.length, i, p = 0, encoded1, encoded2, encoded3, encoded4;\n    if (base64[base64.length - 1] === '=') {\n        bufferLength--;\n        if (base64[base64.length - 2] === '=') {\n            bufferLength--;\n        }\n    }\n    const arraybuffer = new ArrayBuffer(bufferLength), bytes = new Uint8Array(arraybuffer);\n    for (i = 0; i < len; i += 4) {\n        encoded1 = lookup[base64.charCodeAt(i)];\n        encoded2 = lookup[base64.charCodeAt(i + 1)];\n        encoded3 = lookup[base64.charCodeAt(i + 2)];\n        encoded4 = lookup[base64.charCodeAt(i + 3)];\n        bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n        bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n        bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n    }\n    return arraybuffer;\n};\n", "import { ERROR_PACKET, PACKET_TYPES_REVERSE } from \"./commons.js\";\nimport { decode } from \"./contrib/base64-arraybuffer.js\";\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nexport const decodePacket = (encodedPacket, binaryType) => {\n    if (typeof encodedPacket !== \"string\") {\n        return {\n            type: \"message\",\n            data: mapBinary(encodedPacket, binaryType)\n        };\n    }\n    const type = encodedPacket.charAt(0);\n    if (type === \"b\") {\n        return {\n            type: \"message\",\n            data: decodeBase64Packet(encodedPacket.substring(1), binaryType)\n        };\n    }\n    const packetType = PACKET_TYPES_REVERSE[type];\n    if (!packetType) {\n        return ERROR_PACKET;\n    }\n    return encodedPacket.length > 1\n        ? {\n            type: PACKET_TYPES_REVERSE[type],\n            data: encodedPacket.substring(1)\n        }\n        : {\n            type: PACKET_TYPES_REVERSE[type]\n        };\n};\nconst decodeBase64Packet = (data, binaryType) => {\n    if (withNativeArrayBuffer) {\n        const decoded = decode(data);\n        return mapBinary(decoded, binaryType);\n    }\n    else {\n        return { base64: true, data }; // fallback for old browsers\n    }\n};\nconst mapBinary = (data, binaryType) => {\n    switch (binaryType) {\n        case \"blob\":\n            if (data instanceof Blob) {\n                // from WebSocket + binaryType \"blob\"\n                return data;\n            }\n            else {\n                // from HTTP long-polling or WebTransport\n                return new Blob([data]);\n            }\n        case \"arraybuffer\":\n        default:\n            if (data instanceof ArrayBuffer) {\n                // from HTTP long-polling (base64) or WebSocket + binaryType \"arraybuffer\"\n                return data;\n            }\n            else {\n                // from WebTransport (Uint8Array)\n                return data.buffer;\n            }\n    }\n};\n", "import { encodePacket, encodePacketToBinary } from \"./encodePacket.js\";\nimport { decodePacket } from \"./decodePacket.js\";\nimport { ERROR_PACKET } from \"./commons.js\";\nconst SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text\nconst encodePayload = (packets, callback) => {\n    // some packets may be added to the array while encoding, so the initial length must be saved\n    const length = packets.length;\n    const encodedPackets = new Array(length);\n    let count = 0;\n    packets.forEach((packet, i) => {\n        // force base64 encoding for binary packets\n        encodePacket(packet, false, encodedPacket => {\n            encodedPackets[i] = encodedPacket;\n            if (++count === length) {\n                callback(encodedPackets.join(SEPARATOR));\n            }\n        });\n    });\n};\nconst decodePayload = (encodedPayload, binaryType) => {\n    const encodedPackets = encodedPayload.split(SEPARATOR);\n    const packets = [];\n    for (let i = 0; i < encodedPackets.length; i++) {\n        const decodedPacket = decodePacket(encodedPackets[i], binaryType);\n        packets.push(decodedPacket);\n        if (decodedPacket.type === \"error\") {\n            break;\n        }\n    }\n    return packets;\n};\nexport function createPacketEncoderStream() {\n    return new TransformStream({\n        transform(packet, controller) {\n            encodePacketToBinary(packet, encodedPacket => {\n                const payloadLength = encodedPacket.length;\n                let header;\n                // inspired by the WebSocket format: https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API/Writing_WebSocket_servers#decoding_payload_length\n                if (payloadLength < 126) {\n                    header = new Uint8Array(1);\n                    new DataView(header.buffer).setUint8(0, payloadLength);\n                }\n                else if (payloadLength < 65536) {\n                    header = new Uint8Array(3);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 126);\n                    view.setUint16(1, payloadLength);\n                }\n                else {\n                    header = new Uint8Array(9);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 127);\n                    view.setBigUint64(1, BigInt(payloadLength));\n                }\n                // first bit indicates whether the payload is plain text (0) or binary (1)\n                if (packet.data && typeof packet.data !== \"string\") {\n                    header[0] |= 0x80;\n                }\n                controller.enqueue(header);\n                controller.enqueue(encodedPacket);\n            });\n        }\n    });\n}\nlet TEXT_DECODER;\nfunction totalLength(chunks) {\n    return chunks.reduce((acc, chunk) => acc + chunk.length, 0);\n}\nfunction concatChunks(chunks, size) {\n    if (chunks[0].length === size) {\n        return chunks.shift();\n    }\n    const buffer = new Uint8Array(size);\n    let j = 0;\n    for (let i = 0; i < size; i++) {\n        buffer[i] = chunks[0][j++];\n        if (j === chunks[0].length) {\n            chunks.shift();\n            j = 0;\n        }\n    }\n    if (chunks.length && j < chunks[0].length) {\n        chunks[0] = chunks[0].slice(j);\n    }\n    return buffer;\n}\nexport function createPacketDecoderStream(maxPayload, binaryType) {\n    if (!TEXT_DECODER) {\n        TEXT_DECODER = new TextDecoder();\n    }\n    const chunks = [];\n    let state = 0 /* READ_HEADER */;\n    let expectedLength = -1;\n    let isBinary = false;\n    return new TransformStream({\n        transform(chunk, controller) {\n            chunks.push(chunk);\n            while (true) {\n                if (state === 0 /* READ_HEADER */) {\n                    if (totalLength(chunks) < 1) {\n                        break;\n                    }\n                    const header = concatChunks(chunks, 1);\n                    isBinary = (header[0] & 0x80) === 0x80;\n                    expectedLength = header[0] & 0x7f;\n                    if (expectedLength < 126) {\n                        state = 3 /* READ_PAYLOAD */;\n                    }\n                    else if (expectedLength === 126) {\n                        state = 1 /* READ_EXTENDED_LENGTH_16 */;\n                    }\n                    else {\n                        state = 2 /* READ_EXTENDED_LENGTH_64 */;\n                    }\n                }\n                else if (state === 1 /* READ_EXTENDED_LENGTH_16 */) {\n                    if (totalLength(chunks) < 2) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 2);\n                    expectedLength = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length).getUint16(0);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else if (state === 2 /* READ_EXTENDED_LENGTH_64 */) {\n                    if (totalLength(chunks) < 8) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 8);\n                    const view = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length);\n                    const n = view.getUint32(0);\n                    if (n > Math.pow(2, 53 - 32) - 1) {\n                        // the maximum safe integer in JavaScript is 2^53 - 1\n                        controller.enqueue(ERROR_PACKET);\n                        break;\n                    }\n                    expectedLength = n * Math.pow(2, 32) + view.getUint32(4);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else {\n                    if (totalLength(chunks) < expectedLength) {\n                        break;\n                    }\n                    const data = concatChunks(chunks, expectedLength);\n                    controller.enqueue(decodePacket(isBinary ? data : TEXT_DECODER.decode(data), binaryType));\n                    state = 0 /* READ_HEADER */;\n                }\n                if (expectedLength === 0 || expectedLength > maxPayload) {\n                    controller.enqueue(ERROR_PACKET);\n                    break;\n                }\n            }\n        }\n    });\n}\nexport const protocol = 4;\nexport { encodePacket, encodePayload, decodePacket, decodePayload };\n", "/**\n * Initialize a new `Emitter`.\n *\n * @api public\n */\n\nexport function Emitter(obj) {\n  if (obj) return mixin(obj);\n}\n\n/**\n * Mixin the emitter properties.\n *\n * @param {Object} obj\n * @return {Object}\n * @api private\n */\n\nfunction mixin(obj) {\n  for (var key in Emitter.prototype) {\n    obj[key] = Emitter.prototype[key];\n  }\n  return obj;\n}\n\n/**\n * Listen on the given `event` with `fn`.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.on =\nEmitter.prototype.addEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])\n    .push(fn);\n  return this;\n};\n\n/**\n * Adds an `event` listener that will be invoked a single\n * time then automatically removed.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.once = function(event, fn){\n  function on() {\n    this.off(event, on);\n    fn.apply(this, arguments);\n  }\n\n  on.fn = fn;\n  this.on(event, on);\n  return this;\n};\n\n/**\n * Remove the given callback for `event` or all\n * registered callbacks.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.off =\nEmitter.prototype.removeListener =\nEmitter.prototype.removeAllListeners =\nEmitter.prototype.removeEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n\n  // all\n  if (0 == arguments.length) {\n    this._callbacks = {};\n    return this;\n  }\n\n  // specific event\n  var callbacks = this._callbacks['$' + event];\n  if (!callbacks) return this;\n\n  // remove all handlers\n  if (1 == arguments.length) {\n    delete this._callbacks['$' + event];\n    return this;\n  }\n\n  // remove specific handler\n  var cb;\n  for (var i = 0; i < callbacks.length; i++) {\n    cb = callbacks[i];\n    if (cb === fn || cb.fn === fn) {\n      callbacks.splice(i, 1);\n      break;\n    }\n  }\n\n  // Remove event specific arrays for event types that no\n  // one is subscribed for to avoid memory leak.\n  if (callbacks.length === 0) {\n    delete this._callbacks['$' + event];\n  }\n\n  return this;\n};\n\n/**\n * Emit `event` with the given args.\n *\n * @param {String} event\n * @param {Mixed} ...\n * @return {Emitter}\n */\n\nEmitter.prototype.emit = function(event){\n  this._callbacks = this._callbacks || {};\n\n  var args = new Array(arguments.length - 1)\n    , callbacks = this._callbacks['$' + event];\n\n  for (var i = 1; i < arguments.length; i++) {\n    args[i - 1] = arguments[i];\n  }\n\n  if (callbacks) {\n    callbacks = callbacks.slice(0);\n    for (var i = 0, len = callbacks.length; i < len; ++i) {\n      callbacks[i].apply(this, args);\n    }\n  }\n\n  return this;\n};\n\n// alias used for reserved events (protected method)\nEmitter.prototype.emitReserved = Emitter.prototype.emit;\n\n/**\n * Return array of callbacks for `event`.\n *\n * @param {String} event\n * @return {Array}\n * @api public\n */\n\nEmitter.prototype.listeners = function(event){\n  this._callbacks = this._callbacks || {};\n  return this._callbacks['$' + event] || [];\n};\n\n/**\n * Check if this emitter has `event` handlers.\n *\n * @param {String} event\n * @return {Boolean}\n * @api public\n */\n\nEmitter.prototype.hasListeners = function(event){\n  return !! this.listeners(event).length;\n};\n", "export const globalThisShim = (() => {\n    if (typeof self !== \"undefined\") {\n        return self;\n    }\n    else if (typeof window !== \"undefined\") {\n        return window;\n    }\n    else {\n        return Function(\"return this\")();\n    }\n})();\n", "import { globalThisShim as globalThis } from \"./globalThis.js\";\nexport function pick(obj, ...attr) {\n    return attr.reduce((acc, k) => {\n        if (obj.hasOwnProperty(k)) {\n            acc[k] = obj[k];\n        }\n        return acc;\n    }, {});\n}\n// Keep a reference to the real timeout functions so they can be used when overridden\nconst NATIVE_SET_TIMEOUT = globalThis.setTimeout;\nconst NATIVE_CLEAR_TIMEOUT = globalThis.clearTimeout;\nexport function installTimerFunctions(obj, opts) {\n    if (opts.useNativeTimers) {\n        obj.setTimeoutFn = NATIVE_SET_TIMEOUT.bind(globalThis);\n        obj.clearTimeoutFn = NATIVE_CLEAR_TIMEOUT.bind(globalThis);\n    }\n    else {\n        obj.setTimeoutFn = globalThis.setTimeout.bind(globalThis);\n        obj.clearTimeoutFn = globalThis.clearTimeout.bind(globalThis);\n    }\n}\n// base64 encoded buffers are about 33% bigger (https://en.wikipedia.org/wiki/Base64)\nconst BASE64_OVERHEAD = 1.33;\n// we could also have used `new Blob([obj]).size`, but it isn't supported in IE9\nexport function byteLength(obj) {\n    if (typeof obj === \"string\") {\n        return utf8Length(obj);\n    }\n    // arraybuffer or blob\n    return Math.ceil((obj.byteLength || obj.size) * BASE64_OVERHEAD);\n}\nfunction utf8Length(str) {\n    let c = 0, length = 0;\n    for (let i = 0, l = str.length; i < l; i++) {\n        c = str.charCodeAt(i);\n        if (c < 0x80) {\n            length += 1;\n        }\n        else if (c < 0x800) {\n            length += 2;\n        }\n        else if (c < 0xd800 || c >= 0xe000) {\n            length += 3;\n        }\n        else {\n            i++;\n            length += 4;\n        }\n    }\n    return length;\n}\n", "// imported from https://github.com/galkn/querystring\n/**\n * Compiles a querystring\n * Returns string representation of the object\n *\n * @param {Object}\n * @api private\n */\nexport function encode(obj) {\n    let str = '';\n    for (let i in obj) {\n        if (obj.hasOwnProperty(i)) {\n            if (str.length)\n                str += '&';\n            str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);\n        }\n    }\n    return str;\n}\n/**\n * Parses a simple querystring into an object\n *\n * @param {String} qs\n * @api private\n */\nexport function decode(qs) {\n    let qry = {};\n    let pairs = qs.split('&');\n    for (let i = 0, l = pairs.length; i < l; i++) {\n        let pair = pairs[i].split('=');\n        qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);\n    }\n    return qry;\n}\n", "import { decodePacket } from \"engine.io-parser\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions } from \"./util.js\";\nimport { encode } from \"./contrib/parseqs.js\";\nexport class TransportError extends Error {\n    constructor(reason, description, context) {\n        super(reason);\n        this.description = description;\n        this.context = context;\n        this.type = \"TransportError\";\n    }\n}\nexport class Transport extends Emitter {\n    /**\n     * Transport abstract constructor.\n     *\n     * @param {Object} opts - options\n     * @protected\n     */\n    constructor(opts) {\n        super();\n        this.writable = false;\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.query = opts.query;\n        this.socket = opts.socket;\n    }\n    /**\n     * Emits an error.\n     *\n     * @param {String} reason\n     * @param description\n     * @param context - the error context\n     * @return {Transport} for chaining\n     * @protected\n     */\n    onError(reason, description, context) {\n        super.emitReserved(\"error\", new TransportError(reason, description, context));\n        return this;\n    }\n    /**\n     * Opens the transport.\n     */\n    open() {\n        this.readyState = \"opening\";\n        this.doOpen();\n        return this;\n    }\n    /**\n     * Closes the transport.\n     */\n    close() {\n        if (this.readyState === \"opening\" || this.readyState === \"open\") {\n            this.doClose();\n            this.onClose();\n        }\n        return this;\n    }\n    /**\n     * Sends multiple packets.\n     *\n     * @param {Array} packets\n     */\n    send(packets) {\n        if (this.readyState === \"open\") {\n            this.write(packets);\n        }\n        else {\n            // this might happen if the transport was silently closed in the beforeunload event handler\n        }\n    }\n    /**\n     * Called upon open\n     *\n     * @protected\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        this.writable = true;\n        super.emitReserved(\"open\");\n    }\n    /**\n     * Called with data.\n     *\n     * @param {String} data\n     * @protected\n     */\n    onData(data) {\n        const packet = decodePacket(data, this.socket.binaryType);\n        this.onPacket(packet);\n    }\n    /**\n     * Called with a decoded packet.\n     *\n     * @protected\n     */\n    onPacket(packet) {\n        super.emitReserved(\"packet\", packet);\n    }\n    /**\n     * Called upon close.\n     *\n     * @protected\n     */\n    onClose(details) {\n        this.readyState = \"closed\";\n        super.emitReserved(\"close\", details);\n    }\n    /**\n     * Pauses the transport, in order not to lose packets during an upgrade.\n     *\n     * @param onPause\n     */\n    pause(onPause) { }\n    createUri(schema, query = {}) {\n        return (schema +\n            \"://\" +\n            this._hostname() +\n            this._port() +\n            this.opts.path +\n            this._query(query));\n    }\n    _hostname() {\n        const hostname = this.opts.hostname;\n        return hostname.indexOf(\":\") === -1 ? hostname : \"[\" + hostname + \"]\";\n    }\n    _port() {\n        if (this.opts.port &&\n            ((this.opts.secure && Number(this.opts.port !== 443)) ||\n                (!this.opts.secure && Number(this.opts.port) !== 80))) {\n            return \":\" + this.opts.port;\n        }\n        else {\n            return \"\";\n        }\n    }\n    _query(query) {\n        const encodedQuery = encode(query);\n        return encodedQuery.length ? \"?\" + encodedQuery : \"\";\n    }\n}\n", "// imported from https://github.com/unshiftio/yeast\n'use strict';\nconst alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split(''), length = 64, map = {};\nlet seed = 0, i = 0, prev;\n/**\n * Return a string representing the specified number.\n *\n * @param {Number} num The number to convert.\n * @returns {String} The string representation of the number.\n * @api public\n */\nexport function encode(num) {\n    let encoded = '';\n    do {\n        encoded = alphabet[num % length] + encoded;\n        num = Math.floor(num / length);\n    } while (num > 0);\n    return encoded;\n}\n/**\n * Return the integer value specified by the given string.\n *\n * @param {String} str The string to convert.\n * @returns {Number} The integer value represented by the string.\n * @api public\n */\nexport function decode(str) {\n    let decoded = 0;\n    for (i = 0; i < str.length; i++) {\n        decoded = decoded * length + map[str.charAt(i)];\n    }\n    return decoded;\n}\n/**\n * Yeast: A tiny growing id generator.\n *\n * @returns {String} A unique id.\n * @api public\n */\nexport function yeast() {\n    const now = encode(+new Date());\n    if (now !== prev)\n        return seed = 0, prev = now;\n    return now + '.' + encode(seed++);\n}\n//\n// Map each character to its index.\n//\nfor (; i < length; i++)\n    map[alphabet[i]] = i;\n", "// imported from https://github.com/component/has-cors\nlet value = false;\ntry {\n    value = typeof XMLHttpRequest !== 'undefined' &&\n        'withCredentials' in new XMLHttpRequest();\n}\ncatch (err) {\n    // if XMLHttp support is disabled in IE then it will throw\n    // when trying to create\n}\nexport const hasCORS = value;\n", "// browser shim for xmlhttprequest module\nimport { hasCORS } from \"../contrib/has-cors.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nexport function XHR(opts) {\n    const xdomain = opts.xdomain;\n    // XMLHttpRequest can be disabled on IE\n    try {\n        if (\"undefined\" !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {\n            return new XMLHttpRequest();\n        }\n    }\n    catch (e) { }\n    if (!xdomain) {\n        try {\n            return new globalThis[[\"Active\"].concat(\"Object\").join(\"X\")](\"Microsoft.XMLHTTP\");\n        }\n        catch (e) { }\n    }\n}\nexport function createCookieJar() { }\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { encodePayload, decodePayload } from \"engine.io-parser\";\nimport { createCookieJar, XHR as XMLHttpRequest, } from \"./xmlhttprequest.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions, pick } from \"../util.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nfunction empty() { }\nconst hasXHR2 = (function () {\n    const xhr = new XMLHttpRequest({\n        xdomain: false,\n    });\n    return null != xhr.responseType;\n})();\nexport class Polling extends Transport {\n    /**\n     * XHR Polling constructor.\n     *\n     * @param {Object} opts\n     * @package\n     */\n    constructor(opts) {\n        super(opts);\n        this.polling = false;\n        if (typeof location !== \"undefined\") {\n            const isSSL = \"https:\" === location.protocol;\n            let port = location.port;\n            // some user agents have empty `location.port`\n            if (!port) {\n                port = isSSL ? \"443\" : \"80\";\n            }\n            this.xd =\n                (typeof location !== \"undefined\" &&\n                    opts.hostname !== location.hostname) ||\n                    port !== opts.port;\n        }\n        /**\n         * XHR supports binary\n         */\n        const forceBase64 = opts && opts.forceBase64;\n        this.supportsBinary = hasXHR2 && !forceBase64;\n        if (this.opts.withCredentials) {\n            this.cookieJar = createCookieJar();\n        }\n    }\n    get name() {\n        return \"polling\";\n    }\n    /**\n     * Opens the socket (triggers polling). We write a PING message to determine\n     * when the transport is open.\n     *\n     * @protected\n     */\n    doOpen() {\n        this.poll();\n    }\n    /**\n     * Pauses polling.\n     *\n     * @param {Function} onPause - callback upon buffers are flushed and transport is paused\n     * @package\n     */\n    pause(onPause) {\n        this.readyState = \"pausing\";\n        const pause = () => {\n            this.readyState = \"paused\";\n            onPause();\n        };\n        if (this.polling || !this.writable) {\n            let total = 0;\n            if (this.polling) {\n                total++;\n                this.once(\"pollComplete\", function () {\n                    --total || pause();\n                });\n            }\n            if (!this.writable) {\n                total++;\n                this.once(\"drain\", function () {\n                    --total || pause();\n                });\n            }\n        }\n        else {\n            pause();\n        }\n    }\n    /**\n     * Starts polling cycle.\n     *\n     * @private\n     */\n    poll() {\n        this.polling = true;\n        this.doPoll();\n        this.emitReserved(\"poll\");\n    }\n    /**\n     * Overloads onData to detect payloads.\n     *\n     * @protected\n     */\n    onData(data) {\n        const callback = (packet) => {\n            // if its the first message we consider the transport open\n            if (\"opening\" === this.readyState && packet.type === \"open\") {\n                this.onOpen();\n            }\n            // if its a close packet, we close the ongoing requests\n            if (\"close\" === packet.type) {\n                this.onClose({ description: \"transport closed by the server\" });\n                return false;\n            }\n            // otherwise bypass onData and handle the message\n            this.onPacket(packet);\n        };\n        // decode payload\n        decodePayload(data, this.socket.binaryType).forEach(callback);\n        // if an event did not trigger closing\n        if (\"closed\" !== this.readyState) {\n            // if we got data we're not polling\n            this.polling = false;\n            this.emitReserved(\"pollComplete\");\n            if (\"open\" === this.readyState) {\n                this.poll();\n            }\n            else {\n            }\n        }\n    }\n    /**\n     * For polling, send a close packet.\n     *\n     * @protected\n     */\n    doClose() {\n        const close = () => {\n            this.write([{ type: \"close\" }]);\n        };\n        if (\"open\" === this.readyState) {\n            close();\n        }\n        else {\n            // in case we're trying to close while\n            // handshaking is in progress (GH-164)\n            this.once(\"open\", close);\n        }\n    }\n    /**\n     * Writes a packets payload.\n     *\n     * @param {Array} packets - data packets\n     * @protected\n     */\n    write(packets) {\n        this.writable = false;\n        encodePayload(packets, (data) => {\n            this.doWrite(data, () => {\n                this.writable = true;\n                this.emitReserved(\"drain\");\n            });\n        });\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"https\" : \"http\";\n        const query = this.query || {};\n        // cache busting is forced\n        if (false !== this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        if (!this.supportsBinary && !query.sid) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Creates a request.\n     *\n     * @param {String} method\n     * @private\n     */\n    request(opts = {}) {\n        Object.assign(opts, { xd: this.xd, cookieJar: this.cookieJar }, this.opts);\n        return new Request(this.uri(), opts);\n    }\n    /**\n     * Sends data.\n     *\n     * @param {String} data to send.\n     * @param {Function} called upon flush.\n     * @private\n     */\n    doWrite(data, fn) {\n        const req = this.request({\n            method: \"POST\",\n            data: data,\n        });\n        req.on(\"success\", fn);\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr post error\", xhrStatus, context);\n        });\n    }\n    /**\n     * Starts a poll cycle.\n     *\n     * @private\n     */\n    doPoll() {\n        const req = this.request();\n        req.on(\"data\", this.onData.bind(this));\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr poll error\", xhrStatus, context);\n        });\n        this.pollXhr = req;\n    }\n}\nexport class Request extends Emitter {\n    /**\n     * Request constructor\n     *\n     * @param {Object} options\n     * @package\n     */\n    constructor(uri, opts) {\n        super();\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.method = opts.method || \"GET\";\n        this.uri = uri;\n        this.data = undefined !== opts.data ? opts.data : null;\n        this.create();\n    }\n    /**\n     * Creates the XHR object and sends the request.\n     *\n     * @private\n     */\n    create() {\n        var _a;\n        const opts = pick(this.opts, \"agent\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"autoUnref\");\n        opts.xdomain = !!this.opts.xd;\n        const xhr = (this.xhr = new XMLHttpRequest(opts));\n        try {\n            xhr.open(this.method, this.uri, true);\n            try {\n                if (this.opts.extraHeaders) {\n                    xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);\n                    for (let i in this.opts.extraHeaders) {\n                        if (this.opts.extraHeaders.hasOwnProperty(i)) {\n                            xhr.setRequestHeader(i, this.opts.extraHeaders[i]);\n                        }\n                    }\n                }\n            }\n            catch (e) { }\n            if (\"POST\" === this.method) {\n                try {\n                    xhr.setRequestHeader(\"Content-type\", \"text/plain;charset=UTF-8\");\n                }\n                catch (e) { }\n            }\n            try {\n                xhr.setRequestHeader(\"Accept\", \"*/*\");\n            }\n            catch (e) { }\n            (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.addCookies(xhr);\n            // ie6 check\n            if (\"withCredentials\" in xhr) {\n                xhr.withCredentials = this.opts.withCredentials;\n            }\n            if (this.opts.requestTimeout) {\n                xhr.timeout = this.opts.requestTimeout;\n            }\n            xhr.onreadystatechange = () => {\n                var _a;\n                if (xhr.readyState === 3) {\n                    (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.parseCookies(xhr);\n                }\n                if (4 !== xhr.readyState)\n                    return;\n                if (200 === xhr.status || 1223 === xhr.status) {\n                    this.onLoad();\n                }\n                else {\n                    // make sure the `error` event handler that's user-set\n                    // does not throw in the same tick and gets caught here\n                    this.setTimeoutFn(() => {\n                        this.onError(typeof xhr.status === \"number\" ? xhr.status : 0);\n                    }, 0);\n                }\n            };\n            xhr.send(this.data);\n        }\n        catch (e) {\n            // Need to defer since .create() is called directly from the constructor\n            // and thus the 'error' event can only be only bound *after* this exception\n            // occurs.  Therefore, also, we cannot throw here at all.\n            this.setTimeoutFn(() => {\n                this.onError(e);\n            }, 0);\n            return;\n        }\n        if (typeof document !== \"undefined\") {\n            this.index = Request.requestsCount++;\n            Request.requests[this.index] = this;\n        }\n    }\n    /**\n     * Called upon error.\n     *\n     * @private\n     */\n    onError(err) {\n        this.emitReserved(\"error\", err, this.xhr);\n        this.cleanup(true);\n    }\n    /**\n     * Cleans up house.\n     *\n     * @private\n     */\n    cleanup(fromError) {\n        if (\"undefined\" === typeof this.xhr || null === this.xhr) {\n            return;\n        }\n        this.xhr.onreadystatechange = empty;\n        if (fromError) {\n            try {\n                this.xhr.abort();\n            }\n            catch (e) { }\n        }\n        if (typeof document !== \"undefined\") {\n            delete Request.requests[this.index];\n        }\n        this.xhr = null;\n    }\n    /**\n     * Called upon load.\n     *\n     * @private\n     */\n    onLoad() {\n        const data = this.xhr.responseText;\n        if (data !== null) {\n            this.emitReserved(\"data\", data);\n            this.emitReserved(\"success\");\n            this.cleanup();\n        }\n    }\n    /**\n     * Aborts the request.\n     *\n     * @package\n     */\n    abort() {\n        this.cleanup();\n    }\n}\nRequest.requestsCount = 0;\nRequest.requests = {};\n/**\n * Aborts pending requests when unloading the window. This is needed to prevent\n * memory leaks (e.g. when using IE) and to ensure that no spurious error is\n * emitted.\n */\nif (typeof document !== \"undefined\") {\n    // @ts-ignore\n    if (typeof attachEvent === \"function\") {\n        // @ts-ignore\n        attachEvent(\"onunload\", unloadHandler);\n    }\n    else if (typeof addEventListener === \"function\") {\n        const terminationEvent = \"onpagehide\" in globalThis ? \"pagehide\" : \"unload\";\n        addEventListener(terminationEvent, unloadHandler, false);\n    }\n}\nfunction unloadHandler() {\n    for (let i in Request.requests) {\n        if (Request.requests.hasOwnProperty(i)) {\n            Request.requests[i].abort();\n        }\n    }\n}\n", "import { globalThisShim as globalThis } from \"../globalThis.js\";\nexport const nextTick = (() => {\n    const isPromiseAvailable = typeof Promise === \"function\" && typeof Promise.resolve === \"function\";\n    if (isPromiseAvailable) {\n        return (cb) => Promise.resolve().then(cb);\n    }\n    else {\n        return (cb, setTimeoutFn) => setTimeoutFn(cb, 0);\n    }\n})();\nexport const WebSocket = globalThis.WebSocket || globalThis.MozWebSocket;\nexport const usingBrowserWebSocket = true;\nexport const defaultBinaryType = \"arraybuffer\";\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { pick } from \"../util.js\";\nimport { nextTick, usingBrowserWebSocket, WebSocket, } from \"./websocket-constructor.js\";\nimport { encodePacket } from \"engine.io-parser\";\n// detect ReactNative environment\nconst isReactNative = typeof navigator !== \"undefined\" &&\n    typeof navigator.product === \"string\" &&\n    navigator.product.toLowerCase() === \"reactnative\";\nexport class WS extends Transport {\n    /**\n     * WebSocket transport constructor.\n     *\n     * @param {Object} opts - connection options\n     * @protected\n     */\n    constructor(opts) {\n        super(opts);\n        this.supportsBinary = !opts.forceBase64;\n    }\n    get name() {\n        return \"websocket\";\n    }\n    doOpen() {\n        if (!this.check()) {\n            // let probe timeout\n            return;\n        }\n        const uri = this.uri();\n        const protocols = this.opts.protocols;\n        // React Native only supports the 'headers' option, and will print a warning if anything else is passed\n        const opts = isReactNative\n            ? {}\n            : pick(this.opts, \"agent\", \"perMessageDeflate\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"localAddress\", \"protocolVersion\", \"origin\", \"maxPayload\", \"family\", \"checkServerIdentity\");\n        if (this.opts.extraHeaders) {\n            opts.headers = this.opts.extraHeaders;\n        }\n        try {\n            this.ws =\n                usingBrowserWebSocket && !isReactNative\n                    ? protocols\n                        ? new WebSocket(uri, protocols)\n                        : new WebSocket(uri)\n                    : new WebSocket(uri, protocols, opts);\n        }\n        catch (err) {\n            return this.emitReserved(\"error\", err);\n        }\n        this.ws.binaryType = this.socket.binaryType;\n        this.addEventListeners();\n    }\n    /**\n     * Adds event listeners to the socket\n     *\n     * @private\n     */\n    addEventListeners() {\n        this.ws.onopen = () => {\n            if (this.opts.autoUnref) {\n                this.ws._socket.unref();\n            }\n            this.onOpen();\n        };\n        this.ws.onclose = (closeEvent) => this.onClose({\n            description: \"websocket connection closed\",\n            context: closeEvent,\n        });\n        this.ws.onmessage = (ev) => this.onData(ev.data);\n        this.ws.onerror = (e) => this.onError(\"websocket error\", e);\n    }\n    write(packets) {\n        this.writable = false;\n        // encodePacket efficient as it uses WS framing\n        // no need for encodePayload\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            encodePacket(packet, this.supportsBinary, (data) => {\n                // always create a new object (GH-437)\n                const opts = {};\n                if (!usingBrowserWebSocket) {\n                    if (packet.options) {\n                        opts.compress = packet.options.compress;\n                    }\n                    if (this.opts.perMessageDeflate) {\n                        const len = \n                        // @ts-ignore\n                        \"string\" === typeof data ? Buffer.byteLength(data) : data.length;\n                        if (len < this.opts.perMessageDeflate.threshold) {\n                            opts.compress = false;\n                        }\n                    }\n                }\n                // Sometimes the websocket has already been closed but the browser didn't\n                // have a chance of informing us about it yet, in that case send will\n                // throw an error\n                try {\n                    if (usingBrowserWebSocket) {\n                        // TypeError is thrown when passing the second argument on Safari\n                        this.ws.send(data);\n                    }\n                    else {\n                        this.ws.send(data, opts);\n                    }\n                }\n                catch (e) {\n                }\n                if (lastPacket) {\n                    // fake drain\n                    // defer to next tick to allow Socket to clear writeBuffer\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        if (typeof this.ws !== \"undefined\") {\n            this.ws.close();\n            this.ws = null;\n        }\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"wss\" : \"ws\";\n        const query = this.query || {};\n        // append timestamp to URI\n        if (this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        // communicate binary support capabilities\n        if (!this.supportsBinary) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Feature detection for WebSocket.\n     *\n     * @return {Boolean} whether this transport is available.\n     * @private\n     */\n    check() {\n        return !!WebSocket;\n    }\n}\n", "import { Transport } from \"../transport.js\";\nimport { nextTick } from \"./websocket-constructor.js\";\nimport { createPacketDecoderStream, createPacketEncoderStream, } from \"engine.io-parser\";\nexport class WT extends Transport {\n    get name() {\n        return \"webtransport\";\n    }\n    doOpen() {\n        // @ts-ignore\n        if (typeof WebTransport !== \"function\") {\n            return;\n        }\n        // @ts-ignore\n        this.transport = new WebTransport(this.createUri(\"https\"), this.opts.transportOptions[this.name]);\n        this.transport.closed\n            .then(() => {\n            this.onClose();\n        })\n            .catch((err) => {\n            this.onError(\"webtransport error\", err);\n        });\n        // note: we could have used async/await, but that would require some additional polyfills\n        this.transport.ready.then(() => {\n            this.transport.createBidirectionalStream().then((stream) => {\n                const decoderStream = createPacketDecoderStream(Number.MAX_SAFE_INTEGER, this.socket.binaryType);\n                const reader = stream.readable.pipeThrough(decoderStream).getReader();\n                const encoderStream = createPacketEncoderStream();\n                encoderStream.readable.pipeTo(stream.writable);\n                this.writer = encoderStream.writable.getWriter();\n                const read = () => {\n                    reader\n                        .read()\n                        .then(({ done, value }) => {\n                        if (done) {\n                            return;\n                        }\n                        this.onPacket(value);\n                        read();\n                    })\n                        .catch((err) => {\n                    });\n                };\n                read();\n                const packet = { type: \"open\" };\n                if (this.query.sid) {\n                    packet.data = `{\"sid\":\"${this.query.sid}\"}`;\n                }\n                this.writer.write(packet).then(() => this.onOpen());\n            });\n        });\n    }\n    write(packets) {\n        this.writable = false;\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            this.writer.write(packet).then(() => {\n                if (lastPacket) {\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        var _a;\n        (_a = this.transport) === null || _a === void 0 ? void 0 : _a.close();\n    }\n}\n", "import { Polling } from \"./polling.js\";\nimport { WS } from \"./websocket.js\";\nimport { WT } from \"./webtransport.js\";\nexport const transports = {\n    websocket: WS,\n    webtransport: WT,\n    polling: Polling,\n};\n", "// imported from https://github.com/galkn/parseuri\n/**\n * Parses a URI\n *\n * Note: we could also have used the built-in URL object, but it isn't supported on all platforms.\n *\n * See:\n * - https://developer.mozilla.org/en-US/docs/Web/API/URL\n * - https://caniuse.com/url\n * - https://www.rfc-editor.org/rfc/rfc3986#appendix-B\n *\n * History of the parse() method:\n * - first commit: https://github.com/socketio/socket.io-client/commit/4ee1d5d94b3906a9c052b459f1a818b15f38f91c\n * - export into its own module: https://github.com/socketio/engine.io-client/commit/de2c561e4564efeb78f1bdb1ba39ef81b2822cb3\n * - reimport: https://github.com/socketio/engine.io-client/commit/df32277c3f6d622eec5ed09f493cae3f3391d242\n *\n * @author Steven Levithan <stevenlevithan.com> (MIT license)\n * @api private\n */\nconst re = /^(?:(?![^:@\\/?#]+:[^:@\\/]*@)(http|https|ws|wss):\\/\\/)?((?:(([^:@\\/?#]*)(?::([^:@\\/?#]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\\/?#]*)(?::(\\d*))?)(((\\/(?:[^?#](?![^?#\\/]*\\.[^?#\\/.]+(?:[?#]|$)))*\\/?)?([^?#\\/]*))(?:\\?([^#]*))?(?:#(.*))?)/;\nconst parts = [\n    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'\n];\nexport function parse(str) {\n    if (str.length > 2000) {\n        throw \"URI too long\";\n    }\n    const src = str, b = str.indexOf('['), e = str.indexOf(']');\n    if (b != -1 && e != -1) {\n        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);\n    }\n    let m = re.exec(str || ''), uri = {}, i = 14;\n    while (i--) {\n        uri[parts[i]] = m[i] || '';\n    }\n    if (b != -1 && e != -1) {\n        uri.source = src;\n        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');\n        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');\n        uri.ipv6uri = true;\n    }\n    uri.pathNames = pathNames(uri, uri['path']);\n    uri.queryKey = queryKey(uri, uri['query']);\n    return uri;\n}\nfunction pathNames(obj, path) {\n    const regx = /\\/{2,9}/g, names = path.replace(regx, \"/\").split(\"/\");\n    if (path.slice(0, 1) == '/' || path.length === 0) {\n        names.splice(0, 1);\n    }\n    if (path.slice(-1) == '/') {\n        names.splice(names.length - 1, 1);\n    }\n    return names;\n}\nfunction queryKey(uri, query) {\n    const data = {};\n    query.replace(/(?:^|&)([^&=]*)=?([^&]*)/g, function ($0, $1, $2) {\n        if ($1) {\n            data[$1] = $2;\n        }\n    });\n    return data;\n}\n", "import { transports } from \"./transports/index.js\";\nimport { installTimerFunctions, byteLength } from \"./util.js\";\nimport { decode } from \"./contrib/parseqs.js\";\nimport { parse } from \"./contrib/parseuri.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { protocol } from \"engine.io-parser\";\nimport { defaultBinaryType } from \"./transports/websocket-constructor.js\";\nexport class Socket extends Emitter {\n    /**\n     * Socket constructor.\n     *\n     * @param {String|Object} uri - uri or options\n     * @param {Object} opts - options\n     */\n    constructor(uri, opts = {}) {\n        super();\n        this.binaryType = defaultBinaryType;\n        this.writeBuffer = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = null;\n        }\n        if (uri) {\n            uri = parse(uri);\n            opts.hostname = uri.host;\n            opts.secure = uri.protocol === \"https\" || uri.protocol === \"wss\";\n            opts.port = uri.port;\n            if (uri.query)\n                opts.query = uri.query;\n        }\n        else if (opts.host) {\n            opts.hostname = parse(opts.host).host;\n        }\n        installTimerFunctions(this, opts);\n        this.secure =\n            null != opts.secure\n                ? opts.secure\n                : typeof location !== \"undefined\" && \"https:\" === location.protocol;\n        if (opts.hostname && !opts.port) {\n            // if no port is specified manually, use the protocol default\n            opts.port = this.secure ? \"443\" : \"80\";\n        }\n        this.hostname =\n            opts.hostname ||\n                (typeof location !== \"undefined\" ? location.hostname : \"localhost\");\n        this.port =\n            opts.port ||\n                (typeof location !== \"undefined\" && location.port\n                    ? location.port\n                    : this.secure\n                        ? \"443\"\n                        : \"80\");\n        this.transports = opts.transports || [\n            \"polling\",\n            \"websocket\",\n            \"webtransport\",\n        ];\n        this.writeBuffer = [];\n        this.prevBufferLen = 0;\n        this.opts = Object.assign({\n            path: \"/engine.io\",\n            agent: false,\n            withCredentials: false,\n            upgrade: true,\n            timestampParam: \"t\",\n            rememberUpgrade: false,\n            addTrailingSlash: true,\n            rejectUnauthorized: true,\n            perMessageDeflate: {\n                threshold: 1024,\n            },\n            transportOptions: {},\n            closeOnBeforeunload: false,\n        }, opts);\n        this.opts.path =\n            this.opts.path.replace(/\\/$/, \"\") +\n                (this.opts.addTrailingSlash ? \"/\" : \"\");\n        if (typeof this.opts.query === \"string\") {\n            this.opts.query = decode(this.opts.query);\n        }\n        // set on handshake\n        this.id = null;\n        this.upgrades = null;\n        this.pingInterval = null;\n        this.pingTimeout = null;\n        // set on heartbeat\n        this.pingTimeoutTimer = null;\n        if (typeof addEventListener === \"function\") {\n            if (this.opts.closeOnBeforeunload) {\n                // Firefox closes the connection when the \"beforeunload\" event is emitted but not Chrome. This event listener\n                // ensures every browser behaves the same (no \"disconnect\" event at the Socket.IO level when the page is\n                // closed/reloaded)\n                this.beforeunloadEventListener = () => {\n                    if (this.transport) {\n                        // silently close the transport\n                        this.transport.removeAllListeners();\n                        this.transport.close();\n                    }\n                };\n                addEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n            }\n            if (this.hostname !== \"localhost\") {\n                this.offlineEventListener = () => {\n                    this.onClose(\"transport close\", {\n                        description: \"network connection lost\",\n                    });\n                };\n                addEventListener(\"offline\", this.offlineEventListener, false);\n            }\n        }\n        this.open();\n    }\n    /**\n     * Creates transport of the given type.\n     *\n     * @param {String} name - transport name\n     * @return {Transport}\n     * @private\n     */\n    createTransport(name) {\n        const query = Object.assign({}, this.opts.query);\n        // append engine.io protocol identifier\n        query.EIO = protocol;\n        // transport name\n        query.transport = name;\n        // session id if we already have one\n        if (this.id)\n            query.sid = this.id;\n        const opts = Object.assign({}, this.opts, {\n            query,\n            socket: this,\n            hostname: this.hostname,\n            secure: this.secure,\n            port: this.port,\n        }, this.opts.transportOptions[name]);\n        return new transports[name](opts);\n    }\n    /**\n     * Initializes transport to use and starts probe.\n     *\n     * @private\n     */\n    open() {\n        let transport;\n        if (this.opts.rememberUpgrade &&\n            Socket.priorWebsocketSuccess &&\n            this.transports.indexOf(\"websocket\") !== -1) {\n            transport = \"websocket\";\n        }\n        else if (0 === this.transports.length) {\n            // Emit error on next tick so it can be listened to\n            this.setTimeoutFn(() => {\n                this.emitReserved(\"error\", \"No transports available\");\n            }, 0);\n            return;\n        }\n        else {\n            transport = this.transports[0];\n        }\n        this.readyState = \"opening\";\n        // Retry with the next transport if the transport is disabled (jsonp: false)\n        try {\n            transport = this.createTransport(transport);\n        }\n        catch (e) {\n            this.transports.shift();\n            this.open();\n            return;\n        }\n        transport.open();\n        this.setTransport(transport);\n    }\n    /**\n     * Sets the current transport. Disables the existing one (if any).\n     *\n     * @private\n     */\n    setTransport(transport) {\n        if (this.transport) {\n            this.transport.removeAllListeners();\n        }\n        // set up transport\n        this.transport = transport;\n        // set up transport listeners\n        transport\n            .on(\"drain\", this.onDrain.bind(this))\n            .on(\"packet\", this.onPacket.bind(this))\n            .on(\"error\", this.onError.bind(this))\n            .on(\"close\", (reason) => this.onClose(\"transport close\", reason));\n    }\n    /**\n     * Probes a transport.\n     *\n     * @param {String} name - transport name\n     * @private\n     */\n    probe(name) {\n        let transport = this.createTransport(name);\n        let failed = false;\n        Socket.priorWebsocketSuccess = false;\n        const onTransportOpen = () => {\n            if (failed)\n                return;\n            transport.send([{ type: \"ping\", data: \"probe\" }]);\n            transport.once(\"packet\", (msg) => {\n                if (failed)\n                    return;\n                if (\"pong\" === msg.type && \"probe\" === msg.data) {\n                    this.upgrading = true;\n                    this.emitReserved(\"upgrading\", transport);\n                    if (!transport)\n                        return;\n                    Socket.priorWebsocketSuccess = \"websocket\" === transport.name;\n                    this.transport.pause(() => {\n                        if (failed)\n                            return;\n                        if (\"closed\" === this.readyState)\n                            return;\n                        cleanup();\n                        this.setTransport(transport);\n                        transport.send([{ type: \"upgrade\" }]);\n                        this.emitReserved(\"upgrade\", transport);\n                        transport = null;\n                        this.upgrading = false;\n                        this.flush();\n                    });\n                }\n                else {\n                    const err = new Error(\"probe error\");\n                    // @ts-ignore\n                    err.transport = transport.name;\n                    this.emitReserved(\"upgradeError\", err);\n                }\n            });\n        };\n        function freezeTransport() {\n            if (failed)\n                return;\n            // Any callback called by transport should be ignored since now\n            failed = true;\n            cleanup();\n            transport.close();\n            transport = null;\n        }\n        // Handle any error that happens while probing\n        const onerror = (err) => {\n            const error = new Error(\"probe error: \" + err);\n            // @ts-ignore\n            error.transport = transport.name;\n            freezeTransport();\n            this.emitReserved(\"upgradeError\", error);\n        };\n        function onTransportClose() {\n            onerror(\"transport closed\");\n        }\n        // When the socket is closed while we're probing\n        function onclose() {\n            onerror(\"socket closed\");\n        }\n        // When the socket is upgraded while we're probing\n        function onupgrade(to) {\n            if (transport && to.name !== transport.name) {\n                freezeTransport();\n            }\n        }\n        // Remove all listeners on the transport and on self\n        const cleanup = () => {\n            transport.removeListener(\"open\", onTransportOpen);\n            transport.removeListener(\"error\", onerror);\n            transport.removeListener(\"close\", onTransportClose);\n            this.off(\"close\", onclose);\n            this.off(\"upgrading\", onupgrade);\n        };\n        transport.once(\"open\", onTransportOpen);\n        transport.once(\"error\", onerror);\n        transport.once(\"close\", onTransportClose);\n        this.once(\"close\", onclose);\n        this.once(\"upgrading\", onupgrade);\n        if (this.upgrades.indexOf(\"webtransport\") !== -1 &&\n            name !== \"webtransport\") {\n            // favor WebTransport\n            this.setTimeoutFn(() => {\n                if (!failed) {\n                    transport.open();\n                }\n            }, 200);\n        }\n        else {\n            transport.open();\n        }\n    }\n    /**\n     * Called when connection is deemed open.\n     *\n     * @private\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        Socket.priorWebsocketSuccess = \"websocket\" === this.transport.name;\n        this.emitReserved(\"open\");\n        this.flush();\n        // we check for `readyState` in case an `open`\n        // listener already closed the socket\n        if (\"open\" === this.readyState && this.opts.upgrade) {\n            let i = 0;\n            const l = this.upgrades.length;\n            for (; i < l; i++) {\n                this.probe(this.upgrades[i]);\n            }\n        }\n    }\n    /**\n     * Handles a packet.\n     *\n     * @private\n     */\n    onPacket(packet) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            this.emitReserved(\"packet\", packet);\n            // Socket is live - any packet counts\n            this.emitReserved(\"heartbeat\");\n            this.resetPingTimeout();\n            switch (packet.type) {\n                case \"open\":\n                    this.onHandshake(JSON.parse(packet.data));\n                    break;\n                case \"ping\":\n                    this.sendPacket(\"pong\");\n                    this.emitReserved(\"ping\");\n                    this.emitReserved(\"pong\");\n                    break;\n                case \"error\":\n                    const err = new Error(\"server error\");\n                    // @ts-ignore\n                    err.code = packet.data;\n                    this.onError(err);\n                    break;\n                case \"message\":\n                    this.emitReserved(\"data\", packet.data);\n                    this.emitReserved(\"message\", packet.data);\n                    break;\n            }\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon handshake completion.\n     *\n     * @param {Object} data - handshake obj\n     * @private\n     */\n    onHandshake(data) {\n        this.emitReserved(\"handshake\", data);\n        this.id = data.sid;\n        this.transport.query.sid = data.sid;\n        this.upgrades = this.filterUpgrades(data.upgrades);\n        this.pingInterval = data.pingInterval;\n        this.pingTimeout = data.pingTimeout;\n        this.maxPayload = data.maxPayload;\n        this.onOpen();\n        // In case open handler closes socket\n        if (\"closed\" === this.readyState)\n            return;\n        this.resetPingTimeout();\n    }\n    /**\n     * Sets and resets ping timeout timer based on server pings.\n     *\n     * @private\n     */\n    resetPingTimeout() {\n        this.clearTimeoutFn(this.pingTimeoutTimer);\n        this.pingTimeoutTimer = this.setTimeoutFn(() => {\n            this.onClose(\"ping timeout\");\n        }, this.pingInterval + this.pingTimeout);\n        if (this.opts.autoUnref) {\n            this.pingTimeoutTimer.unref();\n        }\n    }\n    /**\n     * Called on `drain` event\n     *\n     * @private\n     */\n    onDrain() {\n        this.writeBuffer.splice(0, this.prevBufferLen);\n        // setting prevBufferLen = 0 is very important\n        // for example, when upgrading, upgrade packet is sent over,\n        // and a nonzero prevBufferLen could cause problems on `drain`\n        this.prevBufferLen = 0;\n        if (0 === this.writeBuffer.length) {\n            this.emitReserved(\"drain\");\n        }\n        else {\n            this.flush();\n        }\n    }\n    /**\n     * Flush write buffers.\n     *\n     * @private\n     */\n    flush() {\n        if (\"closed\" !== this.readyState &&\n            this.transport.writable &&\n            !this.upgrading &&\n            this.writeBuffer.length) {\n            const packets = this.getWritablePackets();\n            this.transport.send(packets);\n            // keep track of current length of writeBuffer\n            // splice writeBuffer and callbackBuffer on `drain`\n            this.prevBufferLen = packets.length;\n            this.emitReserved(\"flush\");\n        }\n    }\n    /**\n     * Ensure the encoded size of the writeBuffer is below the maxPayload value sent by the server (only for HTTP\n     * long-polling)\n     *\n     * @private\n     */\n    getWritablePackets() {\n        const shouldCheckPayloadSize = this.maxPayload &&\n            this.transport.name === \"polling\" &&\n            this.writeBuffer.length > 1;\n        if (!shouldCheckPayloadSize) {\n            return this.writeBuffer;\n        }\n        let payloadSize = 1; // first packet type\n        for (let i = 0; i < this.writeBuffer.length; i++) {\n            const data = this.writeBuffer[i].data;\n            if (data) {\n                payloadSize += byteLength(data);\n            }\n            if (i > 0 && payloadSize > this.maxPayload) {\n                return this.writeBuffer.slice(0, i);\n            }\n            payloadSize += 2; // separator + packet type\n        }\n        return this.writeBuffer;\n    }\n    /**\n     * Sends a message.\n     *\n     * @param {String} msg - message.\n     * @param {Object} options.\n     * @param {Function} callback function.\n     * @return {Socket} for chaining.\n     */\n    write(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    send(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param {String} type: packet type.\n     * @param {String} data.\n     * @param {Object} options.\n     * @param {Function} fn - callback function.\n     * @private\n     */\n    sendPacket(type, data, options, fn) {\n        if (\"function\" === typeof data) {\n            fn = data;\n            data = undefined;\n        }\n        if (\"function\" === typeof options) {\n            fn = options;\n            options = null;\n        }\n        if (\"closing\" === this.readyState || \"closed\" === this.readyState) {\n            return;\n        }\n        options = options || {};\n        options.compress = false !== options.compress;\n        const packet = {\n            type: type,\n            data: data,\n            options: options,\n        };\n        this.emitReserved(\"packetCreate\", packet);\n        this.writeBuffer.push(packet);\n        if (fn)\n            this.once(\"flush\", fn);\n        this.flush();\n    }\n    /**\n     * Closes the connection.\n     */\n    close() {\n        const close = () => {\n            this.onClose(\"forced close\");\n            this.transport.close();\n        };\n        const cleanupAndClose = () => {\n            this.off(\"upgrade\", cleanupAndClose);\n            this.off(\"upgradeError\", cleanupAndClose);\n            close();\n        };\n        const waitForUpgrade = () => {\n            // wait for upgrade to finish since we can't send packets while pausing a transport\n            this.once(\"upgrade\", cleanupAndClose);\n            this.once(\"upgradeError\", cleanupAndClose);\n        };\n        if (\"opening\" === this.readyState || \"open\" === this.readyState) {\n            this.readyState = \"closing\";\n            if (this.writeBuffer.length) {\n                this.once(\"drain\", () => {\n                    if (this.upgrading) {\n                        waitForUpgrade();\n                    }\n                    else {\n                        close();\n                    }\n                });\n            }\n            else if (this.upgrading) {\n                waitForUpgrade();\n            }\n            else {\n                close();\n            }\n        }\n        return this;\n    }\n    /**\n     * Called upon transport error\n     *\n     * @private\n     */\n    onError(err) {\n        Socket.priorWebsocketSuccess = false;\n        this.emitReserved(\"error\", err);\n        this.onClose(\"transport error\", err);\n    }\n    /**\n     * Called upon transport close.\n     *\n     * @private\n     */\n    onClose(reason, description) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            // clear timers\n            this.clearTimeoutFn(this.pingTimeoutTimer);\n            // stop event from firing again for transport\n            this.transport.removeAllListeners(\"close\");\n            // ensure transport won't stay open\n            this.transport.close();\n            // ignore further transport communication\n            this.transport.removeAllListeners();\n            if (typeof removeEventListener === \"function\") {\n                removeEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n                removeEventListener(\"offline\", this.offlineEventListener, false);\n            }\n            // set ready state\n            this.readyState = \"closed\";\n            // clear session id\n            this.id = null;\n            // emit close event\n            this.emitReserved(\"close\", reason, description);\n            // clean buffers after, so users can still\n            // grab the buffers on `close` event\n            this.writeBuffer = [];\n            this.prevBufferLen = 0;\n        }\n    }\n    /**\n     * Filters upgrades, returning only those matching client transports.\n     *\n     * @param {Array} upgrades - server upgrades\n     * @private\n     */\n    filterUpgrades(upgrades) {\n        const filteredUpgrades = [];\n        let i = 0;\n        const j = upgrades.length;\n        for (; i < j; i++) {\n            if (~this.transports.indexOf(upgrades[i]))\n                filteredUpgrades.push(upgrades[i]);\n        }\n        return filteredUpgrades;\n    }\n}\nSocket.protocol = protocol;\n", "import { Socket } from \"./socket.js\";\nexport { Socket };\nexport const protocol = Socket.protocol;\nexport { Transport, TransportError } from \"./transport.js\";\nexport { transports } from \"./transports/index.js\";\nexport { installTimerFunctions } from \"./util.js\";\nexport { parse } from \"./contrib/parseuri.js\";\nexport { nextTick } from \"./transports/websocket-constructor.js\";\n", "import { parse } from \"engine.io-client\";\n/**\n * URL parser.\n *\n * @param uri - url\n * @param path - the request path of the connection\n * @param loc - An object meant to mimic window.location.\n *        Defaults to window.location.\n * @public\n */\nexport function url(uri, path = \"\", loc) {\n    let obj = uri;\n    // default to window.location\n    loc = loc || (typeof location !== \"undefined\" && location);\n    if (null == uri)\n        uri = loc.protocol + \"//\" + loc.host;\n    // relative path support\n    if (typeof uri === \"string\") {\n        if (\"/\" === uri.charAt(0)) {\n            if (\"/\" === uri.charAt(1)) {\n                uri = loc.protocol + uri;\n            }\n            else {\n                uri = loc.host + uri;\n            }\n        }\n        if (!/^(https?|wss?):\\/\\//.test(uri)) {\n            if (\"undefined\" !== typeof loc) {\n                uri = loc.protocol + \"//\" + uri;\n            }\n            else {\n                uri = \"https://\" + uri;\n            }\n        }\n        // parse\n        obj = parse(uri);\n    }\n    // make sure we treat `localhost:80` and `localhost` equally\n    if (!obj.port) {\n        if (/^(http|ws)$/.test(obj.protocol)) {\n            obj.port = \"80\";\n        }\n        else if (/^(http|ws)s$/.test(obj.protocol)) {\n            obj.port = \"443\";\n        }\n    }\n    obj.path = obj.path || \"/\";\n    const ipv6 = obj.host.indexOf(\":\") !== -1;\n    const host = ipv6 ? \"[\" + obj.host + \"]\" : obj.host;\n    // define unique id\n    obj.id = obj.protocol + \"://\" + host + \":\" + obj.port + path;\n    // define href\n    obj.href =\n        obj.protocol +\n            \"://\" +\n            host +\n            (loc && loc.port === obj.port ? \"\" : \":\" + obj.port);\n    return obj;\n}\n", "import { Emitter } from \"@socket.io/component-emitter\";\nimport { deconstructPacket, reconstructPacket } from \"./binary.js\";\nimport { isBinary, hasBinary } from \"./is-binary.js\";\n/**\n * These strings must not be used as event names, as they have a special meaning.\n */\nconst RESERVED_EVENTS = [\n    \"connect\",\n    \"connect_error\",\n    \"disconnect\",\n    \"disconnecting\",\n    \"newListener\",\n    \"removeListener\", // used by the Node.js EventEmitter\n];\n/**\n * Protocol version.\n *\n * @public\n */\nexport const protocol = 5;\nexport var PacketType;\n(function (PacketType) {\n    PacketType[PacketType[\"CONNECT\"] = 0] = \"CONNECT\";\n    PacketType[PacketType[\"DISCONNECT\"] = 1] = \"DISCONNECT\";\n    PacketType[PacketType[\"EVENT\"] = 2] = \"EVENT\";\n    PacketType[PacketType[\"ACK\"] = 3] = \"ACK\";\n    PacketType[PacketType[\"CONNECT_ERROR\"] = 4] = \"CONNECT_ERROR\";\n    PacketType[PacketType[\"BINARY_EVENT\"] = 5] = \"BINARY_EVENT\";\n    PacketType[PacketType[\"BINARY_ACK\"] = 6] = \"BINARY_ACK\";\n})(PacketType || (PacketType = {}));\n/**\n * A socket.io Encoder instance\n */\nexport class Encoder {\n    /**\n     * Encoder constructor\n     *\n     * @param {function} replacer - custom replacer to pass down to JSON.parse\n     */\n    constructor(replacer) {\n        this.replacer = replacer;\n    }\n    /**\n     * Encode a packet as a single string if non-binary, or as a\n     * buffer sequence, depending on packet type.\n     *\n     * @param {Object} obj - packet object\n     */\n    encode(obj) {\n        if (obj.type === PacketType.EVENT || obj.type === PacketType.ACK) {\n            if (hasBinary(obj)) {\n                return this.encodeAsBinary({\n                    type: obj.type === PacketType.EVENT\n                        ? PacketType.BINARY_EVENT\n                        : PacketType.BINARY_ACK,\n                    nsp: obj.nsp,\n                    data: obj.data,\n                    id: obj.id,\n                });\n            }\n        }\n        return [this.encodeAsString(obj)];\n    }\n    /**\n     * Encode packet as string.\n     */\n    encodeAsString(obj) {\n        // first is type\n        let str = \"\" + obj.type;\n        // attachments if we have them\n        if (obj.type === PacketType.BINARY_EVENT ||\n            obj.type === PacketType.BINARY_ACK) {\n            str += obj.attachments + \"-\";\n        }\n        // if we have a namespace other than `/`\n        // we append it followed by a comma `,`\n        if (obj.nsp && \"/\" !== obj.nsp) {\n            str += obj.nsp + \",\";\n        }\n        // immediately followed by the id\n        if (null != obj.id) {\n            str += obj.id;\n        }\n        // json data\n        if (null != obj.data) {\n            str += JSON.stringify(obj.data, this.replacer);\n        }\n        return str;\n    }\n    /**\n     * Encode packet as 'buffer sequence' by removing blobs, and\n     * deconstructing packet into object with placeholders and\n     * a list of buffers.\n     */\n    encodeAsBinary(obj) {\n        const deconstruction = deconstructPacket(obj);\n        const pack = this.encodeAsString(deconstruction.packet);\n        const buffers = deconstruction.buffers;\n        buffers.unshift(pack); // add packet info to beginning of data list\n        return buffers; // write all the buffers\n    }\n}\n// see https://stackoverflow.com/questions/8511281/check-if-a-value-is-an-object-in-javascript\nfunction isObject(value) {\n    return Object.prototype.toString.call(value) === \"[object Object]\";\n}\n/**\n * A socket.io Decoder instance\n *\n * @return {Object} decoder\n */\nexport class Decoder extends Emitter {\n    /**\n     * Decoder constructor\n     *\n     * @param {function} reviver - custom reviver to pass down to JSON.stringify\n     */\n    constructor(reviver) {\n        super();\n        this.reviver = reviver;\n    }\n    /**\n     * Decodes an encoded packet string into packet JSON.\n     *\n     * @param {String} obj - encoded packet\n     */\n    add(obj) {\n        let packet;\n        if (typeof obj === \"string\") {\n            if (this.reconstructor) {\n                throw new Error(\"got plaintext data when reconstructing a packet\");\n            }\n            packet = this.decodeString(obj);\n            const isBinaryEvent = packet.type === PacketType.BINARY_EVENT;\n            if (isBinaryEvent || packet.type === PacketType.BINARY_ACK) {\n                packet.type = isBinaryEvent ? PacketType.EVENT : PacketType.ACK;\n                // binary packet's json\n                this.reconstructor = new BinaryReconstructor(packet);\n                // no attachments, labeled binary but no binary data to follow\n                if (packet.attachments === 0) {\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n            else {\n                // non-binary full packet\n                super.emitReserved(\"decoded\", packet);\n            }\n        }\n        else if (isBinary(obj) || obj.base64) {\n            // raw binary data\n            if (!this.reconstructor) {\n                throw new Error(\"got binary data when not reconstructing a packet\");\n            }\n            else {\n                packet = this.reconstructor.takeBinaryData(obj);\n                if (packet) {\n                    // received final buffer\n                    this.reconstructor = null;\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n        }\n        else {\n            throw new Error(\"Unknown type: \" + obj);\n        }\n    }\n    /**\n     * Decode a packet String (JSON data)\n     *\n     * @param {String} str\n     * @return {Object} packet\n     */\n    decodeString(str) {\n        let i = 0;\n        // look up type\n        const p = {\n            type: Number(str.charAt(0)),\n        };\n        if (PacketType[p.type] === undefined) {\n            throw new Error(\"unknown packet type \" + p.type);\n        }\n        // look up attachments if type binary\n        if (p.type === PacketType.BINARY_EVENT ||\n            p.type === PacketType.BINARY_ACK) {\n            const start = i + 1;\n            while (str.charAt(++i) !== \"-\" && i != str.length) { }\n            const buf = str.substring(start, i);\n            if (buf != Number(buf) || str.charAt(i) !== \"-\") {\n                throw new Error(\"Illegal attachments\");\n            }\n            p.attachments = Number(buf);\n        }\n        // look up namespace (if any)\n        if (\"/\" === str.charAt(i + 1)) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (\",\" === c)\n                    break;\n                if (i === str.length)\n                    break;\n            }\n            p.nsp = str.substring(start, i);\n        }\n        else {\n            p.nsp = \"/\";\n        }\n        // look up id\n        const next = str.charAt(i + 1);\n        if (\"\" !== next && Number(next) == next) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (null == c || Number(c) != c) {\n                    --i;\n                    break;\n                }\n                if (i === str.length)\n                    break;\n            }\n            p.id = Number(str.substring(start, i + 1));\n        }\n        // look up json data\n        if (str.charAt(++i)) {\n            const payload = this.tryParse(str.substr(i));\n            if (Decoder.isPayloadValid(p.type, payload)) {\n                p.data = payload;\n            }\n            else {\n                throw new Error(\"invalid payload\");\n            }\n        }\n        return p;\n    }\n    tryParse(str) {\n        try {\n            return JSON.parse(str, this.reviver);\n        }\n        catch (e) {\n            return false;\n        }\n    }\n    static isPayloadValid(type, payload) {\n        switch (type) {\n            case PacketType.CONNECT:\n                return isObject(payload);\n            case PacketType.DISCONNECT:\n                return payload === undefined;\n            case PacketType.CONNECT_ERROR:\n                return typeof payload === \"string\" || isObject(payload);\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                return (Array.isArray(payload) &&\n                    (typeof payload[0] === \"number\" ||\n                        (typeof payload[0] === \"string\" &&\n                            RESERVED_EVENTS.indexOf(payload[0]) === -1)));\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                return Array.isArray(payload);\n        }\n    }\n    /**\n     * Deallocates a parser's resources\n     */\n    destroy() {\n        if (this.reconstructor) {\n            this.reconstructor.finishedReconstruction();\n            this.reconstructor = null;\n        }\n    }\n}\n/**\n * A manager of a binary event's 'buffer sequence'. Should\n * be constructed whenever a packet of type BINARY_EVENT is\n * decoded.\n *\n * @param {Object} packet\n * @return {BinaryReconstructor} initialized reconstructor\n */\nclass BinaryReconstructor {\n    constructor(packet) {\n        this.packet = packet;\n        this.buffers = [];\n        this.reconPack = packet;\n    }\n    /**\n     * Method to be called when binary data received from connection\n     * after a BINARY_EVENT packet.\n     *\n     * @param {Buffer | ArrayBuffer} binData - the raw binary data received\n     * @return {null | Object} returns null if more binary data is expected or\n     *   a reconstructed packet object if all buffers have been received.\n     */\n    takeBinaryData(binData) {\n        this.buffers.push(binData);\n        if (this.buffers.length === this.reconPack.attachments) {\n            // done with buffer list\n            const packet = reconstructPacket(this.reconPack, this.buffers);\n            this.finishedReconstruction();\n            return packet;\n        }\n        return null;\n    }\n    /**\n     * Cleans up binary packet reconstruction variables.\n     */\n    finishedReconstruction() {\n        this.reconPack = null;\n        this.buffers = [];\n    }\n}\n", "const withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nconst isView = (obj) => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj.buffer instanceof ArrayBuffer;\n};\nconst toString = Object.prototype.toString;\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeFile = typeof File === \"function\" ||\n    (typeof File !== \"undefined\" &&\n        toString.call(File) === \"[object FileConstructor]\");\n/**\n * Returns true if obj is a Buffer, an ArrayBuffer, a Blob or a File.\n *\n * @private\n */\nexport function isBinary(obj) {\n    return ((withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj))) ||\n        (withNativeBlob && obj instanceof Blob) ||\n        (withNativeFile && obj instanceof File));\n}\nexport function hasBinary(obj, toJSON) {\n    if (!obj || typeof obj !== \"object\") {\n        return false;\n    }\n    if (Array.isArray(obj)) {\n        for (let i = 0, l = obj.length; i < l; i++) {\n            if (hasBinary(obj[i])) {\n                return true;\n            }\n        }\n        return false;\n    }\n    if (isBinary(obj)) {\n        return true;\n    }\n    if (obj.toJSON &&\n        typeof obj.toJSON === \"function\" &&\n        arguments.length === 1) {\n        return hasBinary(obj.toJSON(), true);\n    }\n    for (const key in obj) {\n        if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {\n            return true;\n        }\n    }\n    return false;\n}\n", "import { isBinary } from \"./is-binary.js\";\n/**\n * Replaces every Buffer | ArrayBuffer | Blob | File in packet with a numbered placeholder.\n *\n * @param {Object} packet - socket.io event packet\n * @return {Object} with deconstructed packet and list of buffers\n * @public\n */\nexport function deconstructPacket(packet) {\n    const buffers = [];\n    const packetData = packet.data;\n    const pack = packet;\n    pack.data = _deconstructPacket(packetData, buffers);\n    pack.attachments = buffers.length; // number of binary 'attachments'\n    return { packet: pack, buffers: buffers };\n}\nfunction _deconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (isBinary(data)) {\n        const placeholder = { _placeholder: true, num: buffers.length };\n        buffers.push(data);\n        return placeholder;\n    }\n    else if (Array.isArray(data)) {\n        const newData = new Array(data.length);\n        for (let i = 0; i < data.length; i++) {\n            newData[i] = _deconstructPacket(data[i], buffers);\n        }\n        return newData;\n    }\n    else if (typeof data === \"object\" && !(data instanceof Date)) {\n        const newData = {};\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                newData[key] = _deconstructPacket(data[key], buffers);\n            }\n        }\n        return newData;\n    }\n    return data;\n}\n/**\n * Reconstructs a binary packet from its placeholder packet and buffers\n *\n * @param {Object} packet - event packet with placeholders\n * @param {Array} buffers - binary buffers to put in placeholder positions\n * @return {Object} reconstructed packet\n * @public\n */\nexport function reconstructPacket(packet, buffers) {\n    packet.data = _reconstructPacket(packet.data, buffers);\n    delete packet.attachments; // no longer useful\n    return packet;\n}\nfunction _reconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (data && data._placeholder === true) {\n        const isIndexValid = typeof data.num === \"number\" &&\n            data.num >= 0 &&\n            data.num < buffers.length;\n        if (isIndexValid) {\n            return buffers[data.num]; // appropriate buffer (should be natural order anyway)\n        }\n        else {\n            throw new Error(\"illegal attachments\");\n        }\n    }\n    else if (Array.isArray(data)) {\n        for (let i = 0; i < data.length; i++) {\n            data[i] = _reconstructPacket(data[i], buffers);\n        }\n    }\n    else if (typeof data === \"object\") {\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                data[key] = _reconstructPacket(data[key], buffers);\n            }\n        }\n    }\n    return data;\n}\n", "export function on(obj, ev, fn) {\n    obj.on(ev, fn);\n    return function subDestroy() {\n        obj.off(ev, fn);\n    };\n}\n", "import { PacketType } from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\n/**\n * Internal events.\n * These events can't be emitted by the user.\n */\nconst RESERVED_EVENTS = Object.freeze({\n    connect: 1,\n    connect_error: 1,\n    disconnect: 1,\n    disconnecting: 1,\n    // EventEmitter reserved events: https://nodejs.org/api/events.html#events_event_newlistener\n    newListener: 1,\n    removeListener: 1,\n});\n/**\n * A Socket is the fundamental class for interacting with the server.\n *\n * A Socket belongs to a certain Namespace (by default /) and uses an underlying {@link Manager} to communicate.\n *\n * @example\n * const socket = io();\n *\n * socket.on(\"connect\", () => {\n *   console.log(\"connected\");\n * });\n *\n * // send an event to the server\n * socket.emit(\"foo\", \"bar\");\n *\n * socket.on(\"foobar\", () => {\n *   // an event was received from the server\n * });\n *\n * // upon disconnection\n * socket.on(\"disconnect\", (reason) => {\n *   console.log(`disconnected due to ${reason}`);\n * });\n */\nexport class Socket extends Emitter {\n    /**\n     * `Socket` constructor.\n     */\n    constructor(io, nsp, opts) {\n        super();\n        /**\n         * Whether the socket is currently connected to the server.\n         *\n         * @example\n         * const socket = io();\n         *\n         * socket.on(\"connect\", () => {\n         *   console.log(socket.connected); // true\n         * });\n         *\n         * socket.on(\"disconnect\", () => {\n         *   console.log(socket.connected); // false\n         * });\n         */\n        this.connected = false;\n        /**\n         * Whether the connection state was recovered after a temporary disconnection. In that case, any missed packets will\n         * be transmitted by the server.\n         */\n        this.recovered = false;\n        /**\n         * Buffer for packets received before the CONNECT packet\n         */\n        this.receiveBuffer = [];\n        /**\n         * Buffer for packets that will be sent once the socket is connected\n         */\n        this.sendBuffer = [];\n        /**\n         * The queue of packets to be sent with retry in case of failure.\n         *\n         * Packets are sent one by one, each waiting for the server acknowledgement, in order to guarantee the delivery order.\n         * @private\n         */\n        this._queue = [];\n        /**\n         * A sequence to generate the ID of the {@link QueuedPacket}.\n         * @private\n         */\n        this._queueSeq = 0;\n        this.ids = 0;\n        this.acks = {};\n        this.flags = {};\n        this.io = io;\n        this.nsp = nsp;\n        if (opts && opts.auth) {\n            this.auth = opts.auth;\n        }\n        this._opts = Object.assign({}, opts);\n        if (this.io._autoConnect)\n            this.open();\n    }\n    /**\n     * Whether the socket is currently disconnected\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"connect\", () => {\n     *   console.log(socket.disconnected); // false\n     * });\n     *\n     * socket.on(\"disconnect\", () => {\n     *   console.log(socket.disconnected); // true\n     * });\n     */\n    get disconnected() {\n        return !this.connected;\n    }\n    /**\n     * Subscribe to open, close and packet events\n     *\n     * @private\n     */\n    subEvents() {\n        if (this.subs)\n            return;\n        const io = this.io;\n        this.subs = [\n            on(io, \"open\", this.onopen.bind(this)),\n            on(io, \"packet\", this.onpacket.bind(this)),\n            on(io, \"error\", this.onerror.bind(this)),\n            on(io, \"close\", this.onclose.bind(this)),\n        ];\n    }\n    /**\n     * Whether the Socket will try to reconnect when its Manager connects or reconnects.\n     *\n     * @example\n     * const socket = io();\n     *\n     * console.log(socket.active); // true\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   if (reason === \"io server disconnect\") {\n     *     // the disconnection was initiated by the server, you need to manually reconnect\n     *     console.log(socket.active); // false\n     *   }\n     *   // else the socket will automatically try to reconnect\n     *   console.log(socket.active); // true\n     * });\n     */\n    get active() {\n        return !!this.subs;\n    }\n    /**\n     * \"Opens\" the socket.\n     *\n     * @example\n     * const socket = io({\n     *   autoConnect: false\n     * });\n     *\n     * socket.connect();\n     */\n    connect() {\n        if (this.connected)\n            return this;\n        this.subEvents();\n        if (!this.io[\"_reconnecting\"])\n            this.io.open(); // ensure open\n        if (\"open\" === this.io._readyState)\n            this.onopen();\n        return this;\n    }\n    /**\n     * Alias for {@link connect()}.\n     */\n    open() {\n        return this.connect();\n    }\n    /**\n     * Sends a `message` event.\n     *\n     * This method mimics the WebSocket.send() method.\n     *\n     * @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send\n     *\n     * @example\n     * socket.send(\"hello\");\n     *\n     * // this is equivalent to\n     * socket.emit(\"message\", \"hello\");\n     *\n     * @return self\n     */\n    send(...args) {\n        args.unshift(\"message\");\n        this.emit.apply(this, args);\n        return this;\n    }\n    /**\n     * Override `emit`.\n     * If the event is in `events`, it's emitted normally.\n     *\n     * @example\n     * socket.emit(\"hello\", \"world\");\n     *\n     * // all serializable datastructures are supported (no need to call JSON.stringify)\n     * socket.emit(\"hello\", 1, \"2\", { 3: [\"4\"], 5: Uint8Array.from([6]) });\n     *\n     * // with an acknowledgement from the server\n     * socket.emit(\"hello\", \"world\", (val) => {\n     *   // ...\n     * });\n     *\n     * @return self\n     */\n    emit(ev, ...args) {\n        if (RESERVED_EVENTS.hasOwnProperty(ev)) {\n            throw new Error('\"' + ev.toString() + '\" is a reserved event name');\n        }\n        args.unshift(ev);\n        if (this._opts.retries && !this.flags.fromQueue && !this.flags.volatile) {\n            this._addToQueue(args);\n            return this;\n        }\n        const packet = {\n            type: PacketType.EVENT,\n            data: args,\n        };\n        packet.options = {};\n        packet.options.compress = this.flags.compress !== false;\n        // event ack callback\n        if (\"function\" === typeof args[args.length - 1]) {\n            const id = this.ids++;\n            const ack = args.pop();\n            this._registerAckCallback(id, ack);\n            packet.id = id;\n        }\n        const isTransportWritable = this.io.engine &&\n            this.io.engine.transport &&\n            this.io.engine.transport.writable;\n        const discardPacket = this.flags.volatile && (!isTransportWritable || !this.connected);\n        if (discardPacket) {\n        }\n        else if (this.connected) {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        }\n        else {\n            this.sendBuffer.push(packet);\n        }\n        this.flags = {};\n        return this;\n    }\n    /**\n     * @private\n     */\n    _registerAckCallback(id, ack) {\n        var _a;\n        const timeout = (_a = this.flags.timeout) !== null && _a !== void 0 ? _a : this._opts.ackTimeout;\n        if (timeout === undefined) {\n            this.acks[id] = ack;\n            return;\n        }\n        // @ts-ignore\n        const timer = this.io.setTimeoutFn(() => {\n            delete this.acks[id];\n            for (let i = 0; i < this.sendBuffer.length; i++) {\n                if (this.sendBuffer[i].id === id) {\n                    this.sendBuffer.splice(i, 1);\n                }\n            }\n            ack.call(this, new Error(\"operation has timed out\"));\n        }, timeout);\n        this.acks[id] = (...args) => {\n            // @ts-ignore\n            this.io.clearTimeoutFn(timer);\n            ack.apply(this, [null, ...args]);\n        };\n    }\n    /**\n     * Emits an event and waits for an acknowledgement\n     *\n     * @example\n     * // without timeout\n     * const response = await socket.emitWithAck(\"hello\", \"world\");\n     *\n     * // with a specific timeout\n     * try {\n     *   const response = await socket.timeout(1000).emitWithAck(\"hello\", \"world\");\n     * } catch (err) {\n     *   // the server did not acknowledge the event in the given delay\n     * }\n     *\n     * @return a Promise that will be fulfilled when the server acknowledges the event\n     */\n    emitWithAck(ev, ...args) {\n        // the timeout flag is optional\n        const withErr = this.flags.timeout !== undefined || this._opts.ackTimeout !== undefined;\n        return new Promise((resolve, reject) => {\n            args.push((arg1, arg2) => {\n                if (withErr) {\n                    return arg1 ? reject(arg1) : resolve(arg2);\n                }\n                else {\n                    return resolve(arg1);\n                }\n            });\n            this.emit(ev, ...args);\n        });\n    }\n    /**\n     * Add the packet to the queue.\n     * @param args\n     * @private\n     */\n    _addToQueue(args) {\n        let ack;\n        if (typeof args[args.length - 1] === \"function\") {\n            ack = args.pop();\n        }\n        const packet = {\n            id: this._queueSeq++,\n            tryCount: 0,\n            pending: false,\n            args,\n            flags: Object.assign({ fromQueue: true }, this.flags),\n        };\n        args.push((err, ...responseArgs) => {\n            if (packet !== this._queue[0]) {\n                // the packet has already been acknowledged\n                return;\n            }\n            const hasError = err !== null;\n            if (hasError) {\n                if (packet.tryCount > this._opts.retries) {\n                    this._queue.shift();\n                    if (ack) {\n                        ack(err);\n                    }\n                }\n            }\n            else {\n                this._queue.shift();\n                if (ack) {\n                    ack(null, ...responseArgs);\n                }\n            }\n            packet.pending = false;\n            return this._drainQueue();\n        });\n        this._queue.push(packet);\n        this._drainQueue();\n    }\n    /**\n     * Send the first packet of the queue, and wait for an acknowledgement from the server.\n     * @param force - whether to resend a packet that has not been acknowledged yet\n     *\n     * @private\n     */\n    _drainQueue(force = false) {\n        if (!this.connected || this._queue.length === 0) {\n            return;\n        }\n        const packet = this._queue[0];\n        if (packet.pending && !force) {\n            return;\n        }\n        packet.pending = true;\n        packet.tryCount++;\n        this.flags = packet.flags;\n        this.emit.apply(this, packet.args);\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param packet\n     * @private\n     */\n    packet(packet) {\n        packet.nsp = this.nsp;\n        this.io._packet(packet);\n    }\n    /**\n     * Called upon engine `open`.\n     *\n     * @private\n     */\n    onopen() {\n        if (typeof this.auth == \"function\") {\n            this.auth((data) => {\n                this._sendConnectPacket(data);\n            });\n        }\n        else {\n            this._sendConnectPacket(this.auth);\n        }\n    }\n    /**\n     * Sends a CONNECT packet to initiate the Socket.IO session.\n     *\n     * @param data\n     * @private\n     */\n    _sendConnectPacket(data) {\n        this.packet({\n            type: PacketType.CONNECT,\n            data: this._pid\n                ? Object.assign({ pid: this._pid, offset: this._lastOffset }, data)\n                : data,\n        });\n    }\n    /**\n     * Called upon engine or manager `error`.\n     *\n     * @param err\n     * @private\n     */\n    onerror(err) {\n        if (!this.connected) {\n            this.emitReserved(\"connect_error\", err);\n        }\n    }\n    /**\n     * Called upon engine `close`.\n     *\n     * @param reason\n     * @param description\n     * @private\n     */\n    onclose(reason, description) {\n        this.connected = false;\n        delete this.id;\n        this.emitReserved(\"disconnect\", reason, description);\n    }\n    /**\n     * Called with socket packet.\n     *\n     * @param packet\n     * @private\n     */\n    onpacket(packet) {\n        const sameNamespace = packet.nsp === this.nsp;\n        if (!sameNamespace)\n            return;\n        switch (packet.type) {\n            case PacketType.CONNECT:\n                if (packet.data && packet.data.sid) {\n                    this.onconnect(packet.data.sid, packet.data.pid);\n                }\n                else {\n                    this.emitReserved(\"connect_error\", new Error(\"It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)\"));\n                }\n                break;\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                this.onevent(packet);\n                break;\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                this.onack(packet);\n                break;\n            case PacketType.DISCONNECT:\n                this.ondisconnect();\n                break;\n            case PacketType.CONNECT_ERROR:\n                this.destroy();\n                const err = new Error(packet.data.message);\n                // @ts-ignore\n                err.data = packet.data.data;\n                this.emitReserved(\"connect_error\", err);\n                break;\n        }\n    }\n    /**\n     * Called upon a server event.\n     *\n     * @param packet\n     * @private\n     */\n    onevent(packet) {\n        const args = packet.data || [];\n        if (null != packet.id) {\n            args.push(this.ack(packet.id));\n        }\n        if (this.connected) {\n            this.emitEvent(args);\n        }\n        else {\n            this.receiveBuffer.push(Object.freeze(args));\n        }\n    }\n    emitEvent(args) {\n        if (this._anyListeners && this._anyListeners.length) {\n            const listeners = this._anyListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, args);\n            }\n        }\n        super.emit.apply(this, args);\n        if (this._pid && args.length && typeof args[args.length - 1] === \"string\") {\n            this._lastOffset = args[args.length - 1];\n        }\n    }\n    /**\n     * Produces an ack callback to emit with an event.\n     *\n     * @private\n     */\n    ack(id) {\n        const self = this;\n        let sent = false;\n        return function (...args) {\n            // prevent double callbacks\n            if (sent)\n                return;\n            sent = true;\n            self.packet({\n                type: PacketType.ACK,\n                id: id,\n                data: args,\n            });\n        };\n    }\n    /**\n     * Called upon a server acknowlegement.\n     *\n     * @param packet\n     * @private\n     */\n    onack(packet) {\n        const ack = this.acks[packet.id];\n        if (\"function\" === typeof ack) {\n            ack.apply(this, packet.data);\n            delete this.acks[packet.id];\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon server connect.\n     *\n     * @private\n     */\n    onconnect(id, pid) {\n        this.id = id;\n        this.recovered = pid && this._pid === pid;\n        this._pid = pid; // defined only if connection state recovery is enabled\n        this.connected = true;\n        this.emitBuffered();\n        this.emitReserved(\"connect\");\n        this._drainQueue(true);\n    }\n    /**\n     * Emit buffered events (received and emitted).\n     *\n     * @private\n     */\n    emitBuffered() {\n        this.receiveBuffer.forEach((args) => this.emitEvent(args));\n        this.receiveBuffer = [];\n        this.sendBuffer.forEach((packet) => {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        });\n        this.sendBuffer = [];\n    }\n    /**\n     * Called upon server disconnect.\n     *\n     * @private\n     */\n    ondisconnect() {\n        this.destroy();\n        this.onclose(\"io server disconnect\");\n    }\n    /**\n     * Called upon forced client/server side disconnections,\n     * this method ensures the manager stops tracking us and\n     * that reconnections don't get triggered for this.\n     *\n     * @private\n     */\n    destroy() {\n        if (this.subs) {\n            // clean subscriptions to avoid reconnections\n            this.subs.forEach((subDestroy) => subDestroy());\n            this.subs = undefined;\n        }\n        this.io[\"_destroy\"](this);\n    }\n    /**\n     * Disconnects the socket manually. In that case, the socket will not try to reconnect.\n     *\n     * If this is the last active Socket instance of the {@link Manager}, the low-level connection will be closed.\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   // console.log(reason); prints \"io client disconnect\"\n     * });\n     *\n     * socket.disconnect();\n     *\n     * @return self\n     */\n    disconnect() {\n        if (this.connected) {\n            this.packet({ type: PacketType.DISCONNECT });\n        }\n        // remove socket from pool\n        this.destroy();\n        if (this.connected) {\n            // fire events\n            this.onclose(\"io client disconnect\");\n        }\n        return this;\n    }\n    /**\n     * Alias for {@link disconnect()}.\n     *\n     * @return self\n     */\n    close() {\n        return this.disconnect();\n    }\n    /**\n     * Sets the compress flag.\n     *\n     * @example\n     * socket.compress(false).emit(\"hello\");\n     *\n     * @param compress - if `true`, compresses the sending data\n     * @return self\n     */\n    compress(compress) {\n        this.flags.compress = compress;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the event message will be dropped when this socket is not\n     * ready to send messages.\n     *\n     * @example\n     * socket.volatile.emit(\"hello\"); // the server may or may not receive it\n     *\n     * @returns self\n     */\n    get volatile() {\n        this.flags.volatile = true;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the callback will be called with an error when the\n     * given number of milliseconds have elapsed without an acknowledgement from the server:\n     *\n     * @example\n     * socket.timeout(5000).emit(\"my-event\", (err) => {\n     *   if (err) {\n     *     // the server did not acknowledge the event in the given delay\n     *   }\n     * });\n     *\n     * @returns self\n     */\n    timeout(timeout) {\n        this.flags.timeout = timeout;\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * @example\n     * socket.onAny((event, ...args) => {\n     *   console.log(`got ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * @example\n     * socket.prependAny((event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * }\n     *\n     * socket.onAny(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAny(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAny();\n     *\n     * @param listener\n     */\n    offAny(listener) {\n        if (!this._anyListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAny() {\n        return this._anyListeners || [];\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.onAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.prependAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * }\n     *\n     * socket.onAnyOutgoing(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAnyOutgoing(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAnyOutgoing();\n     *\n     * @param [listener] - the catch-all listener (optional)\n     */\n    offAnyOutgoing(listener) {\n        if (!this._anyOutgoingListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyOutgoingListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyOutgoingListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAnyOutgoing() {\n        return this._anyOutgoingListeners || [];\n    }\n    /**\n     * Notify the listeners for each packet sent\n     *\n     * @param packet\n     *\n     * @private\n     */\n    notifyOutgoingListeners(packet) {\n        if (this._anyOutgoingListeners && this._anyOutgoingListeners.length) {\n            const listeners = this._anyOutgoingListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, packet.data);\n            }\n        }\n    }\n}\n", "/**\n * Initialize backoff timer with `opts`.\n *\n * - `min` initial timeout in milliseconds [100]\n * - `max` max timeout [10000]\n * - `jitter` [0]\n * - `factor` [2]\n *\n * @param {Object} opts\n * @api public\n */\nexport function Backoff(opts) {\n    opts = opts || {};\n    this.ms = opts.min || 100;\n    this.max = opts.max || 10000;\n    this.factor = opts.factor || 2;\n    this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;\n    this.attempts = 0;\n}\n/**\n * Return the backoff duration.\n *\n * @return {Number}\n * @api public\n */\nBackoff.prototype.duration = function () {\n    var ms = this.ms * Math.pow(this.factor, this.attempts++);\n    if (this.jitter) {\n        var rand = Math.random();\n        var deviation = Math.floor(rand * this.jitter * ms);\n        ms = (Math.floor(rand * 10) & 1) == 0 ? ms - deviation : ms + deviation;\n    }\n    return Math.min(ms, this.max) | 0;\n};\n/**\n * Reset the number of attempts.\n *\n * @api public\n */\nBackoff.prototype.reset = function () {\n    this.attempts = 0;\n};\n/**\n * Set the minimum duration\n *\n * @api public\n */\nBackoff.prototype.setMin = function (min) {\n    this.ms = min;\n};\n/**\n * Set the maximum duration\n *\n * @api public\n */\nBackoff.prototype.setMax = function (max) {\n    this.max = max;\n};\n/**\n * Set the jitter\n *\n * @api public\n */\nBackoff.prototype.setJitter = function (jitter) {\n    this.jitter = jitter;\n};\n", "import { Socket as Engine, installTimerFunctions, nextTick, } from \"engine.io-client\";\nimport { Socket } from \"./socket.js\";\nimport * as parser from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Backoff } from \"./contrib/backo2.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\nexport class Manager extends Emitter {\n    constructor(uri, opts) {\n        var _a;\n        super();\n        this.nsps = {};\n        this.subs = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = undefined;\n        }\n        opts = opts || {};\n        opts.path = opts.path || \"/socket.io\";\n        this.opts = opts;\n        installTimerFunctions(this, opts);\n        this.reconnection(opts.reconnection !== false);\n        this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);\n        this.reconnectionDelay(opts.reconnectionDelay || 1000);\n        this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);\n        this.randomizationFactor((_a = opts.randomizationFactor) !== null && _a !== void 0 ? _a : 0.5);\n        this.backoff = new Backoff({\n            min: this.reconnectionDelay(),\n            max: this.reconnectionDelayMax(),\n            jitter: this.randomizationFactor(),\n        });\n        this.timeout(null == opts.timeout ? 20000 : opts.timeout);\n        this._readyState = \"closed\";\n        this.uri = uri;\n        const _parser = opts.parser || parser;\n        this.encoder = new _parser.Encoder();\n        this.decoder = new _parser.Decoder();\n        this._autoConnect = opts.autoConnect !== false;\n        if (this._autoConnect)\n            this.open();\n    }\n    reconnection(v) {\n        if (!arguments.length)\n            return this._reconnection;\n        this._reconnection = !!v;\n        return this;\n    }\n    reconnectionAttempts(v) {\n        if (v === undefined)\n            return this._reconnectionAttempts;\n        this._reconnectionAttempts = v;\n        return this;\n    }\n    reconnectionDelay(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelay;\n        this._reconnectionDelay = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMin(v);\n        return this;\n    }\n    randomizationFactor(v) {\n        var _a;\n        if (v === undefined)\n            return this._randomizationFactor;\n        this._randomizationFactor = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setJitter(v);\n        return this;\n    }\n    reconnectionDelayMax(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelayMax;\n        this._reconnectionDelayMax = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMax(v);\n        return this;\n    }\n    timeout(v) {\n        if (!arguments.length)\n            return this._timeout;\n        this._timeout = v;\n        return this;\n    }\n    /**\n     * Starts trying to reconnect if reconnection is enabled and we have not\n     * started reconnecting yet\n     *\n     * @private\n     */\n    maybeReconnectOnOpen() {\n        // Only try to reconnect if it's the first time we're connecting\n        if (!this._reconnecting &&\n            this._reconnection &&\n            this.backoff.attempts === 0) {\n            // keeps reconnection from firing twice for the same reconnection loop\n            this.reconnect();\n        }\n    }\n    /**\n     * Sets the current transport `socket`.\n     *\n     * @param {Function} fn - optional, callback\n     * @return self\n     * @public\n     */\n    open(fn) {\n        if (~this._readyState.indexOf(\"open\"))\n            return this;\n        this.engine = new Engine(this.uri, this.opts);\n        const socket = this.engine;\n        const self = this;\n        this._readyState = \"opening\";\n        this.skipReconnect = false;\n        // emit `open`\n        const openSubDestroy = on(socket, \"open\", function () {\n            self.onopen();\n            fn && fn();\n        });\n        const onError = (err) => {\n            this.cleanup();\n            this._readyState = \"closed\";\n            this.emitReserved(\"error\", err);\n            if (fn) {\n                fn(err);\n            }\n            else {\n                // Only do this if there is no fn to handle the error\n                this.maybeReconnectOnOpen();\n            }\n        };\n        // emit `error`\n        const errorSub = on(socket, \"error\", onError);\n        if (false !== this._timeout) {\n            const timeout = this._timeout;\n            // set timer\n            const timer = this.setTimeoutFn(() => {\n                openSubDestroy();\n                onError(new Error(\"timeout\"));\n                socket.close();\n   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on(this.decoder, \"decoded\", this.ondecoded.bind(this)));\n    }\n    /**\n     * Called upon a ping.\n     *\n     * @private\n     */\n    onping() {\n        this.emitReserved(\"ping\");\n    }\n    /**\n     * Called with data.\n     *\n     * @private\n     */\n    ondata(data) {\n        try {\n            this.decoder.add(data);\n        }\n        catch (e) {\n            this.onclose(\"parse error\", e);\n        }\n    }\n    /**\n     * Called when parser fully decodes a packet.\n     *\n     * @private\n     */\n    ondecoded(packet) {\n        // the nextTick call prevents an exception in a user-provided event listener from triggering a disconnection due to a \"parse error\"\n        nextTick(() => {\n            this.emitReserved(\"packet\", packet);\n        }, this.setTimeoutFn);\n    }\n    /**\n     * Called upon socket error.\n     *\n     * @private\n     */\n    onerror(err) {\n        this.emitReserved(\"error\", err);\n    }\n    /**\n     * Creates a new socket for the given `nsp`.\n     *\n     * @return {Socket}\n     * @public\n     */\n    socket(nsp, opts) {\n        let socket = this.nsps[nsp];\n        if (!socket) {\n            socket = new Socket(this, nsp, opts);\n            this.nsps[nsp] = socket;\n        }\n        else if (this._autoConnect && !socket.active) {\n            socket.connect();\n        }\n        return socket;\n    }\n    /**\n     * Called upon a socket close.\n     *\n     * @param socket\n     * @private\n     */\n    _destroy(socket) {\n        const nsps = Object.keys(this.nsps);\n        for (const nsp of nsps) {\n            const socket = this.nsps[nsp];\n            if (socket.active) {\n                return;\n            }\n        }\n        this._close();\n    }\n    /**\n     * Writes a packet.\n     *\n     * @param packet\n     * @private\n     */\n    _packet(packet) {\n        const encodedPackets = this.encoder.encode(packet);\n        for (let i = 0; i < encodedPackets.length; i++) {\n            this.engine.write(encodedPackets[i], packet.options);\n        }\n    }\n    /**\n     * Clean up transport subscriptions and packet buffer.\n     *\n     * @private\n     */\n    cleanup() {\n        this.subs.forEach((subDestroy) => subDestroy());\n        this.subs.length = 0;\n        this.decoder.destroy();\n    }\n    /**\n     * Close the current socket.\n     *\n     * @private\n     */\n    _close() {\n        this.skipReconnect = true;\n        this._reconnecting = false;\n        this.onclose(\"forced close\");\n        if (this.engine)\n            this.engine.close();\n    }\n    /**\n     * Alias for close()\n     *\n     * @private\n     */\n    disconnect() {\n        return this._close();\n    }\n    /**\n     * Called upon engine close.\n     *\n     * @private\n     */\n    onclose(reason, description) {\n        this.cleanup();\n        this.backoff.reset();\n        this._readyState = \"closed\";\n        this.emitReserved(\"close\", reason, description);\n        if (this._reconnection && !this.skipReconnect) {\n            this.reconnect();\n        }\n    }\n    /**\n     * Attempt a reconnection.\n     *\n     * @private\n     */\n    reconnect() {\n        if (this._reconnecting || this.skipReconnect)\n            return this;\n        const self = this;\n        if (this.backoff.attempts >= this._reconnectionAttempts) {\n            this.backoff.reset();\n            this.emitReserved(\"reconnect_failed\");\n            this._reconnecting = false;\n        }\n        else {\n            const delay = this.backoff.duration();\n            this._reconnecting = true;\n            const timer = this.setTimeoutFn(() => {\n                if (self.skipReconnect)\n                    return;\n                this.emitReserved(\"reconnect_attempt\", self.backoff.attempts);\n                // check again for the case socket closed in above events\n                if (self.skipReconnect)\n                    return;\n                self.open((err) => {\n                    if (err) {\n                        self._reconnecting = false;\n                        self.reconnect();\n                        this.emitReserved(\"reconnect_error\", err);\n                    }\n                    else {\n                        self.onreconnect();\n                    }\n                });\n            }, delay);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n    }\n    /**\n     * Called upon successful reconnect.\n     *\n     * @private\n     */\n    onreconnect() {\n        const attempt = this.backoff.attempts;\n        this._reconnecting = false;\n        this.backoff.reset();\n        this.emitReserved(\"reconnect\", attempt);\n    }\n}\n", "import { url } from \"./url.js\";\nimport { Manager } from \"./manager.js\";\nimport { Socket } from \"./socket.js\";\n/**\n * Managers cache.\n */\nconst cache = {};\nfunction lookup(uri, opts) {\n    if (typeof uri === \"object\") {\n        opts = uri;\n        uri = undefined;\n    }\n    opts = opts || {};\n    const parsed = url(uri, opts.path || \"/socket.io\");\n    const source = parsed.source;\n    const id = parsed.id;\n    const path = parsed.path;\n    const sameNamespace = cache[id] && path in cache[id][\"nsps\"];\n    const newConnection = opts.forceNew ||\n        opts[\"force new connection\"] ||\n        false === opts.multiplex ||\n        sameNamespace;\n    let io;\n    if (newConnection) {\n        io = new Manager(source, opts);\n    }\n    else {\n        if (!cache[id]) {\n            cache[id] = new Manager(source, opts);\n        }\n        io = cache[id];\n    }\n    if (parsed.query && !opts.query) {\n        opts.query = parsed.queryKey;\n    }\n    return io.socket(parsed.path, opts);\n}\n// so that \"lookup\" can be used both as a function (e.g. `io(...)`) and as a\n// namespace (e.g. `io.connect(...)`), for backward compatibility\nObject.assign(lookup, {\n    Manager,\n    Socket,\n    io: lookup,\n    connect: lookup,\n});\n/**\n * Protocol version.\n *\n * @public\n */\nexport { protocol } from \"socket.io-parser\";\n/**\n * Expose constructors for standalone build.\n *\n * @public\n */\nexport { Manager, Socket, lookup as io, lookup as connect, lookup as default, };\n"],
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"ioNamespace", "u", "t", "delay", "factor", "depth", "reason", "lookup", "options", "eMsg", "uibuilder", "uibuilder_module_default", "uibuilder", "UibVar"]
 }
diff --git a/src/front-end-module/uibuilder.module.js b/src/front-end-module/uibuilder.module.js
index 1dae35a5..a8cbfe3f 100644
--- a/src/front-end-module/uibuilder.module.js
+++ b/src/front-end-module/uibuilder.module.js
@@ -873,7 +873,6 @@ export const Uib = class Uib {
     copyToClipboard(varToCopy) {
         let data = ''
         try {
-            console.log(this.get(varToCopy), JSON.stringify(this.get(varToCopy)))
             data = JSON.stringify(this.get(varToCopy))
         } catch (e) {
             log('error', 'copyToClipboard', `Could not copy "${varToCopy}" to clipboard.`, e.message)()
@@ -886,12 +885,12 @@ export const Uib = class Uib {
      * Requires IntersectionObserver (available to all mainstream browsers from early 2019)
      * Automatically sends a msg back to Node-RED.
      * Requires the element to already exist.
-     * @returns {false}
+     * @returns {false} False if not visible
      */
     elementIsVisible() {
         const info = 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'
         log('error', 'uib:elementIsVisible', info)()
-        this.send({payload: 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'})
+        this.send({ payload: 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex' })
         return false
     } // --- End of elementIsVisible --- //
 
@@ -2492,8 +2491,9 @@ export const Uib = class Uib {
 
         // Handle options
         if (options) {
-            if (options.ioNamespace !== undefined && options.ioNamespace !== null && options.ioNamespace !== '') this.set('ioNamespace', options.ioNamespace)
-            if (options.ioPath !== undefined && options.ioPath !== null && options.ioPath !== '') this.set('ioPath', options.ioPath)
+            if (options.ioNamespace) this.set('ioNamespace', options.ioNamespace)
+            if (options.ioPath) this.set('ioPath', options.ioPath)
+            if (options.nopolling && this.socketOptions.transports[0] === 'polling') this.socketOptions.transports.shift()
             // See below for handling of options.loadStylesheet
         }
 
@@ -2511,6 +2511,7 @@ export const Uib = class Uib {
         /** Handle specialist messages like reload and _ui -> Moved to _msgRcvdEvents */
 
         // Track last browser navigation type: navigate, reload, back_forward, prerender
+        // TODO Needs more work - updates on navigation needed?
         const [entry] = performance.getEntriesByType('navigation')
         // @ts-ignore
         this.set('lastNavType', entry.type)

From b0a1b971ef9fa49f5793aff07c08e2531b3e862e Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Thu, 7 Dec 2023 21:34:08 +0000
Subject: [PATCH 31/78] Chg addType to work on all uib nodes

---
 resources/ti-common.js | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/resources/ti-common.js b/resources/ti-common.js
index 6dcd48e1..876d83d0 100644
--- a/resources/ti-common.js
+++ b/resources/ti-common.js
@@ -33,6 +33,8 @@
             deployedUibInstances: {},
             /** Tracks uibuilder's installed front-end packages - changes as packages added/removed (in uibuilder node) */
             packages: [],
+            /** List of uib node names */
+            uibNodeTypes: ['uibuilder', 'uib-cache', 'uib-element', 'uib-html', 'uib-save', 'uib-sender', 'uib-tag', 'uib-update'],
 
             // Debug output via log() - turn on/off with true/false
             get debug() { return _dbg },
@@ -131,11 +133,14 @@
          *  as these can contain duplicate urls before deployment.
          */
         RED.events.on('nodes:add', function(node) {
-            if ( node.type === 'uibuilder') {
-                // Track what type of addition this is
+            // For any newly added uib node, track what type of addition this is
+            if ( uibuilder.uibNodeTypes.includes(node.type) ) {
                 if (node.changed === false && !('moved' in node)) node.addType = 'load'
                 else if (!('_config' in node)) node.addType = 'new'
                 else if (node.changed === true && ('_config' in node)) node.addType = 'paste/import'
+            }
+
+            if ( node.type === 'uibuilder') {
                 // Remove the URL on paste or import
                 if (node.addType === 'paste/import') {
                     delete node.url
@@ -143,7 +148,7 @@
                     // We have to change this if we want the display version to change (if the prop is part of the label)
                     delete node._config.url
                 }
-                // Keep a list of ALL uib nodes in the editor incl disabled, undeployed, etc. Different to the deployed list
+                // Keep a list of ALL uibuilder nodes in the editor incl disabled, undeployed, etc. Different to the deployed list
                 if (node.url) uibuilder.editorUibInstances[node.id] = node.url
                 // Inform interested functions that something was added (and why)
                 RED.events.emit('uibuilder:node-added', node)

From 03f845d52bb47b9de0a31d299ba4e734cd881212 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Thu, 7 Dec 2023 21:34:42 +0000
Subject: [PATCH 32/78] Downgrade jsdom from v22 to v21

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 54b79434..d39f7d22 100644
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
     "express": "^4.17.1",
     "fast-glob": "^3.2.7",
     "fs-extra": "^11.1.0",
-    "jsdom": "^22.1.0",
+    "jsdom": "^21",
     "nanoid": "^3",
     "serve-index": "^1.9.1",
     "socket.io": "^4.3.2",

From 1cb049915e437dc339f4bc23fcac384c728f4bad Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Thu, 7 Dec 2023 21:34:56 +0000
Subject: [PATCH 33/78] Updates

---
 CHANGELOG.md    | 9 +++++++--
 docs/roadmap.md | 3 +++
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3767373a..db121743 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,14 +9,14 @@ Please see the documentation for archived changelogs - a new archive is produced
 ## To Fix
 
 * `uib-save` import - initial deployment does not connect to node - need to clear the entry
-* `jsdom` v22 is pinned to node.js v16
 
 ## To Do
 
 * update the `remote-commands` example
 * Add new low-code example
 * Update docs for ctrl msgs and msg._uib return data to say that anything set via the socket.io auth can only update when the client reconnects. Also document clientTimeDifference
-* Fixup CSS for showDialog (notifications/alerts) - left/right margin on p and svg need removing. Maybe on toast-head class too. Parent class is "toast"
+* Fixup CSS for showDialog (notifications/alerts) - left/right margin on p and svg need removing. Maybe on toast-head class too. Parent class is "toast".
+* Add client msg filter for URL Hash.
 
 * More flexible low-code class attribute handling.
   * In ui.js
@@ -51,6 +51,10 @@ Please see the documentation for archived changelogs - a new archive is produced
 
 * [Issue #232](https://github.com/TotallyInformation/node-red-contrib-uibuilder/issues/232) - Ensure origin script is removed after re-applying to ensure only 1 instance shows instead of 2.
 
+### `uib-html`
+
+* Downgrade `jsdom` version to 21.* as that is the last version that supports Node.js v14.
+
 ### `uib-save`
 
 * **FIXED** usePageName logic.
@@ -91,6 +95,7 @@ Please see the documentation for archived changelogs - a new archive is produced
 
 * More work done to move all filing system access into the single `libs/fs.js` library.
 * Usual ongoing work to tidy, clarify and simplify code & eliminate any small issues.
+* All nodes now have an Editor property `addType` which is set to 1 of 'load', 'new', or 'paste/import'. Allowing processing to differentiate between different circumstances that add nodes to the flow.
 
 ## [v6.7.0](https://github.com/TotallyInformation/node-red-contrib-uibuilder/compare/v6.6.0...v6.7.0)
 
diff --git a/docs/roadmap.md b/docs/roadmap.md
index eb1f9b97..88fa7ec3 100644
--- a/docs/roadmap.md
+++ b/docs/roadmap.md
@@ -621,6 +621,8 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 
 * Change fixed text to use `RED._` for l8n. See: https://discourse.nodered.org/t/flexdash-alpha-release-a-dashboard-for-node-red/65861/48. [ref](https://discourse.nodered.org/t/question-on-internationalisation-can-i-have-1-json-file-for-several-nodes/76300/2)
 
+* NEW NODE: `uib-room` - linked to a uibuilder node, creates a socket.io room. Will need a way to tell the connected clients to subscribe to the romm (optional) and FE fns to connect/disconnect from rooms.
+
 
 #### Questions that need answers
 
@@ -676,6 +678,7 @@ To see what is currently being developed, please look at the "Unreleased" sectio
     Refs: [release notes](https://nodejs.org/en/blog/release/v16.0.0), [What's New In Node.js 16?](https://www.howtogeek.com/devops/whats-new-in-node-js-16/)
 
   * Changes due once Node.js v18 live
+    * [Socket.IO with WebTransport](https://socket.io/get-started/webtransport) - requires https
     * [`findLast` and `findLastIndex` array methods](https://v8.dev/features/finding-in-arrays) (18.0.0)
     * Top-level await (experimental in v14 - behind flag, full in v18)
     * V8 updates

From 5c3938bd843f5ff799bb4a52fb0015920494b824 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Sat, 9 Dec 2023 16:37:36 +0000
Subject: [PATCH 34/78] New how-to

---
 docs/how-to/change-element.md | 87 +++++++++++++++++++++++++++++++++++
 1 file changed, 87 insertions(+)
 create mode 100644 docs/how-to/change-element.md

diff --git a/docs/how-to/change-element.md b/docs/how-to/change-element.md
new file mode 100644
index 00000000..60d5bc06
--- /dev/null
+++ b/docs/how-to/change-element.md
@@ -0,0 +1,87 @@
+---
+title: Change attributes and content of a UI element
+description: >
+   Various ways to easily change either the attributes or content of a UI element either from Node-RED or from front-end code.
+created: 2023-12-09 14:03:57
+lastUpdated: 2023-12-09 14:04:02
+---
+
+When using frameworks such as Vue, REACT, etc. Including Node-RED's Dashboard, changable content is usually represented by a managed variable and included in the UI using something like `<p>{{varname}}</p>`. With UIBUILDER, this is unnecessary. HTML already has everything required to do easy updates.
+
+The structure of a UI in HTML is defined using `elements` which are represented in HTML as `tags`. So a paragraph element is represented by `<p>...</p>` opening and closing tags. Attributes are properties added to tags to give visual or data hints to the element, e.g. `<p id="p001" class="myclass">` where `id` and `class` are both _attributes_ of the element.
+
+So to be able to control and change both the content (the stuff between the opening and closing tag, often referred to as the "slot" content) or the attributes, we need to be able to get a reference to the element. Mostly, this is done using ["CSS Selectors"](how-to/change-element.md) and the simplest method is to ensure that the element has an `id` attribute from the outset. Example: `<p id="p001"></p>` has a unique CSS selector of `#p001`.
+
+Now that we know _what_ to use and _how_ to get a reference to it, we know that we can use _any_ element in our UI and easily change both its content and attributes. Note that if you are using UIBUILDER's standard templates, they all have a `<div id="more"></div>` element, so you can always use that for playing with things.
+
+In the following, we will use the `more` div as the example element.
+
+## Adding elements
+
+You can add an element to control in a variety of ways:
+
+1. Node-RED coding
+   1. No-code methods
+      1. `uib-element` node will create many different types of compound elements. The required ID defines the outer wrapper of the element tree. This can sometimes make inner content difficult to remember.
+      2. `uib-tag` lets you add a single element of any type. The element's content (slot) can be HTML or even Markdown.
+   2. Low-code methods - create your own low-code JSON or amend the output of one or more no-code nodes. This lets you create any number of elements of any complexity.
+2. Front-end coding
+   1. Hard code in the `index.html` file. This is simple and gives you a decent visual picture of the hierarchy of the elements on the page but requires a little knowledge of HTML.
+   2. Use native DOM or uibuilder UI (low-code) methods in a JavaScript script.
+
+The safest "blank" elements to use are one of these:
+
+* `div` - "division" is a block (multi-line) element like a paragraph but often with minimal formatting.
+* `span` - A span is an in-line element and is great if you need dynamic variable text
+
+UIBUILDER also includes its own custom element [`<uib-var>`](client-docs/custom-components#uib-var-include-a-managed-variable-in-the-page) if you prefer. It uses uibuilder's managed variables feature. See the linked documentation for details. It has a number of advantages: 
+
+* You can use a simple command from Node-RED to make changes to the managed variable which updates the display automatically. Updates can also be done in front-end code with `uibuilder.set('myvarname', myvalue)`.
+* Can let Node-RED know when the variable changes (great for allowing change from a number of different sources including front-end code).
+* Can show HTML, plain text, Markdown (if the Markdown-IT library is loaded) or a formatted JSON object.
+* Will sanitise any HTML updates if the DOMPurify library is loaded. Good if you are allowing HTML/Markdown content to be defined by user input.
+
+## Amending elements
+
+Now that you have something to work with, here are the ways you can make changes.
+
+### From Node-RED
+
+By far the simplest method is to use the `uib-update` node.
+
+Alternatively, you can use the same kind of `msg._ui` output that the `uib-update` node produces in your own low-code flows.
+
+If using the `<uib-var>` custom tag, you could instead simply update the value of the variable given to that tag as described in the previous section.
+
+### From front-end code
+
+The "traditional" way to do things is to use the `uibuilder.onChange('msg', (msg) => { ... })` function to capture and process messages from Node-RED, you can directly update the UI.
+
+```javascript
+uibuilder.onChange('msg', (msg) => {
+    // Assuming msg.topic as a simplistic way to identify the element to change
+
+    // Use the uibuilder $ shortcut to get a reference to the element
+    const whatToChange = $(`#${msg.topic}`)
+
+    // Give up if it wasn't found
+    if (!whatToChange) return
+
+    // If the msg says to change an attribute
+    // - msg.attribute contains the attribute name, msg.payload the value
+    if (msg.attribute) {
+        whatToChange.setAttribute( msg.attribute, msg.payload)
+    } else {
+        // Otherwise, assume the content changes (allows HTML)
+        whatToChange.innerHTML = msg.payload
+        // Use this instead if you only want text content
+        // whatToChange.innerText = msg.payload
+    }
+})
+```
+
+Now, send a message containing `{topic:'more', attribute:'class', payload:'myclassname'}` to change the elements class dynamically. Or send `{topic:'more', payload:'This is some <b>BOLD</b> text.'}` to change the content (with some simple HTML formatting in this case.)
+
+Alternatively, use `uibuilder.ui(someJson)` to update things using the same low-code JSON as from Node-RED but this is only really useful for more complex changes.
+
+Or, if using the `<uib-var>` custom element, simply update the linked variable with `uibuilder.set('myvarname', myvalue)`

From 0476097a88aa7ade8a0b7fe2ecdbb085735cdcf2 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Tue, 19 Dec 2023 17:37:57 +0000
Subject: [PATCH 35/78] Code tidy

---
 gulpfile.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/gulpfile.js b/gulpfile.js
index 122fb568..e1629ac8 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -36,13 +36,13 @@ const include = require('gulp-include')
 const once = require('gulp-once')
 // const prompt = require('gulp-prompt')
 const greplace = require('gulp-replace')
-const debug = require('gulp-debug')
+// const debug = require('gulp-debug')
 const htmlmin = require('gulp-htmlmin')
 const jeditor = require('gulp-json-editor')
 // const gulpEsbuild = require('gulp-esbuild')
-const {createGulpEsbuild} = require('gulp-esbuild')
+const { createGulpEsbuild } = require('gulp-esbuild')
 const gulpEsbuild = createGulpEsbuild({
-	pipe: true,
+    pipe: true,
 })
 const cleanCSS = require('gulp-clean-css')
 

From 53cf7a59423ef39b075555ab35eb912c25827101 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Tue, 19 Dec 2023 17:39:17 +0000
Subject: [PATCH 36/78] Added sortInstances & sortApps functions

---
 nodes/libs/uiblib.js | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/nodes/libs/uiblib.js b/nodes/libs/uiblib.js
index eca689ed..b7a33266 100644
--- a/nodes/libs/uiblib.js
+++ b/nodes/libs/uiblib.js
@@ -302,6 +302,35 @@ module.exports = {
         }
     },
 
+    /** Sort a uibuilder instances object by url instead of the natural order added
+     * @param {*} instances The instances object to sort
+     * @returns {*} instances sorted by url
+     */
+    sortInstances: function sortInstances(instances) {
+        return Object.fromEntries(
+            Object.entries(instances).sort(([,a],[,b]) => {
+                const nameA = a.toUpperCase()
+                const nameB = b.toUpperCase()
+                if (nameA < nameB) return -1
+                if (nameA > nameB) return 1
+                return 0
+            })
+        )
+    },
+    /** Sort a uibuilder apps object by url instead of the natural order added
+     * @param {*} apps The apps object to sort
+     * @returns {*} apps sorted by url
+     */
+    sortApps: function sortApps(apps) {
+        return apps.sort((a, b) => {
+            const nameA = a[0].toUpperCase()
+            const nameB = b[0].toUpperCase()
+            if (nameA < nameB) return -1
+            if (nameA > nameB) return 1
+            return 0
+        })
+    },
+
 } // ---- End of module.exports ---- //
 
 // EOF

From 67447cb61e828cfc513346e2fa7007b169d095c1 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Tue, 19 Dec 2023 17:41:20 +0000
Subject: [PATCH 37/78] Add sortInstances fn. getDeployedUrls sort & direct upd
 of deployedUibInstances

---
 resources/ti-common.js | 34 +++++++++++++++++++++++++---------
 1 file changed, 25 insertions(+), 9 deletions(-)

diff --git a/resources/ti-common.js b/resources/ti-common.js
index 876d83d0..f9a29fa0 100644
--- a/resources/ti-common.js
+++ b/resources/ti-common.js
@@ -12,6 +12,7 @@
          * To contain common functions, variables and constants for UIBUILDER nodes
          */
         const uibuilder = window['uibuilder'] = {
+            // Standard palette category for all uibuilder nodes
             paletteCategory: 'uibuilder',
             // Standard width for typed input fields
             typedInputWidth: '68.5%',
@@ -45,7 +46,8 @@
                 this.log = _dbg ? console.log : function() {}
             },
             log: function(...args) {},
-            /** Add jQuery UI formatted tooltips
+
+            /** Add jQuery UI formatted tooltips - add as the last line of oneditprepare in a node
              * @param {string} baseSelector CSS Selector that is the top of the hierarchy to impact
              */
             doTooltips: function doTooltips(baseSelector) {
@@ -65,12 +67,11 @@
                     },
                 })
             },
-            /** Get all of the currently deployed uibuilder URL's
+            /** Get all of the currently deployed uibuilder URL's & updates this.deployedUibInstances
              * NOTE that the uibuilder.editorUibInstances cannot be used as that includes disabled nodes/flows
              * @returns {{string,string}} URLs by node id of deployed uibuilder nodes
              */
             getDeployedUrls: function getDeployedUrls() {
-                let out
                 $.ajax({
                     type: 'GET',
                     async: false,
@@ -79,13 +80,28 @@
                     data: {
                         'cmd': 'listinstances',
                     },
-                    success: function(instances) {
-                        // uibuilder.log('[uibuilder] Deployed Instances >>', instances )
-                        out = instances
+                    success: (instances) => {
+                        this.deployedUibInstances = this.sortInstances(instances)
+                        // uibuilder.log('[uibuilder] Deployed Instances >>', instances, this )
                     }
                 })
-                return out
-            } // ---- end of getDeployedUrls ---- //
+                return this.deployedUibInstances
+            }, // ---- end of getDeployedUrls ---- //
+            /** Sort an instances object by url instead of the natural order added
+             * @param {*} instances The instances object to sort
+             * @returns {*} instances sorted by url
+             */
+            sortInstances: function sortInstances(instances) {
+                return Object.fromEntries(
+                    Object.entries(instances).sort(([,a],[,b]) => {
+                        const nameA = a.toUpperCase()
+                        const nameB = b.toUpperCase()
+                        if (nameA < nameB) return -1
+                        if (nameA > nameB) return 1
+                        return 0
+                    })
+                )
+            },
         }
 
         //#region --- Calculate the node url root & the uibuilder FE url prefix
@@ -127,7 +143,7 @@
         })
 
         /** Get initial list of deployed uibuilder instances */
-        uibuilder.deployedUibInstances =  uibuilder.getDeployedUrls()
+        uibuilder.getDeployedUrls()
 
         /** Track which urls have been used - required to handle copy/paste and import
          *  as these can contain duplicate urls before deployment.

From 2766cc23f056de97c4a1d7fb8573c666149517c8 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Tue, 19 Dec 2023 17:42:00 +0000
Subject: [PATCH 38/78] Add linting for custom web components

---
 src/components/.eslintrc.js | 74 +++++++++++++++++++++++++++++++++++++
 1 file changed, 74 insertions(+)
 create mode 100644 src/components/.eslintrc.js

diff --git a/src/components/.eslintrc.js b/src/components/.eslintrc.js
new file mode 100644
index 00000000..3dcafd20
--- /dev/null
+++ b/src/components/.eslintrc.js
@@ -0,0 +1,74 @@
+/* eslint-env node commonjs */
+/* global module */
+/** JavaScript Versions
+ *  5 is minimum -> Last IE11
+ *  6 = 2015 -> Node >8.10, iOS12+
+ *  7 = 2016 -> FF78+,
+ *  8 = 2017 -> Node 10.9+
+ *  9 = 2018 -> Node 12.11+
+ * 10 = 2019
+ * 11 = 2020
+ * 12 = 2021
+ */
+'use strict'
+module.exports = {
+    env: {
+        browser: true,
+        jquery: false,
+        node: false,
+        'shared-node-browser': false
+    },
+    // We use ES2020 because we use esbuild to down-convert to ES2019, allows us to use private class vars
+    parserOptions: {
+        // Because we are using esbuild to restrict actual library to 2019
+        ecmaVersion: 2022,
+        sourceType: 'module'
+    },
+    root: true,
+    plugins: [
+        'html',     // Check scripts in HTML. https://www.npmjs.com/package/eslint-plugin-html
+        'es',       // Help avoid js that is too new. https://eslint-plugin-es.mysticatea.dev/
+        'jsdoc',    // JSDoc. https://www.npmjs.com/package/eslint-plugin-jsdoc
+        'promise',  // Better promises. https://www.npmjs.com/package/eslint-plugin-promise
+        'sonarjs',  // Detect bugs and suspicious patterns. https://github.com/SonarSource/eslint-plugin-sonarjs
+    ],
+    extends: [
+        'standard',
+        'plugin:es/no-new-in-esnext',
+        'plugin:jsdoc/recommended',
+        'plugin:promise/recommended',
+        'plugin:sonarjs/recommended',
+    ],
+    rules: {
+        'sonarjs/no-duplicate-string': ['warn', { 'threshold': 6 }],  // default is 3
+        // 'sonarjs/cognitive-complexity': ['error', 15], // Default is 15
+        'sonarjs/no-nested-template-literals': 0,
+
+        // Tidy up some jsdoc oddities
+        'jsdoc/multiline-blocks': 0,
+        'jsdoc/newline-after-description': 0,
+        'jsdoc/no-multi-asterisks': 0,
+        'jsdoc/tag-lines': 0,
+        'jsdoc/check-tag-names': 0, // Seriously poor quality check
+        'jsdoc/valid-types': 0, // Rubbish, fails on common type configs
+        'jsdoc/no-undefined-types': 0, // ['error'|'warn', {'definedTypes':['Promise']}],
+
+        // Try to keep code complexity in functions to a minimum
+        'sonarjs/cognitive-complexity': ['error', 60],  // default is 15! Need to try and improve this :-)
+
+        // Make Standard less annoying
+        'brace-style': 'off',     // You should only use one-true-brace style but sometimes we want to compress things a bit.
+        'comma-dangle': 'off',    // Lack of dangles wastes soo much time correcting lists
+        'dot-notation': 'off',    // Turn off to allow for tslint's brain-dead treatment of expando objects in JS
+        'indent': ['error', 4, { 'SwitchCase': 1 }],   // Standard wants 2, I like 4
+        'space-before-function-paren': 'off', // No, don't need space between fn and arg!
+        'no-multi-spaces': 'off', // Readability is more important than size (reduce size using uglify)
+        'object-shorthand': ['error', 'consistent'],
+        'padded-blocks': 'off',   // Sometimes you just need some space! See above.
+        'space-in-parens': 'off', // Sometimes you just need some space!
+        'spaced-comment': ['error', 'always', {
+            'markers': ['html', '#region', '#endregion']
+        }],
+        'quote-props': 'off',     // Sometimes it is necessary and then much nicer to be able to quote things that don't need it.
+    }
+}

From 110a74e67680bc617fd926bcefd754cd4bcaafa5 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Tue, 19 Dec 2023 17:43:12 +0000
Subject: [PATCH 39/78] Add --border-pad & --border-margin for border class
 control.

---
 front-end/uib-brand.css     | 6 +++++-
 front-end/uib-brand.min.css | 4 ++--
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/front-end/uib-brand.css b/front-end/uib-brand.css
index b57f6e60..c1be386a 100644
--- a/front-end/uib-brand.css
+++ b/front-end/uib-brand.css
@@ -63,6 +63,9 @@
     --lightness: calc(var(--lightness-value) + var(--lightness-bias));
 
     --border-radius: 0.5rem; /*8px;*/
+    --border-pad: 0.5rem;
+    --border-margin: 0;
+
     /* For the .grid-fit class, the minimum child element size */
     --grid-fit-min: 15rem;
 
@@ -326,7 +329,6 @@
     );
     --secondary: var(--secondary-bg);
     /*#endregion --- --- */
-
 }
 
 /* If the browser reports it, we can adjust for light/dark theme preferences
@@ -691,6 +693,8 @@ form > label:focus-within {
 .border {
     border: 1px solid var(--text3);
     border-radius: var(--border-radius);
+    padding: var(--border-pad);
+    margin: var(--border-margin);
 }
 
 .box {
diff --git a/front-end/uib-brand.min.css b/front-end/uib-brand.min.css
index 3db84667..050e857c 100644
--- a/front-end/uib-brand.min.css
+++ b/front-end/uib-brand.min.css
@@ -1,4 +1,4 @@
-:root,:root.light{color-scheme:light dark;--mode:light;--uib-css:uib-brand;--font-family:sans-serif;--brand-hue:200;--text-hue:var(--brand-hue);--surface-hue:var(--brand-hue);--complementary-offset:180;--accent-offset:30;--saturation-bias:0;--light-saturation:.66;--dark-saturation:calc(var(--light-saturation) * .6);--saturation-value:var(--light-saturation);--saturation:calc(var(--saturation-value) + var(--saturation-bias));--lightness-bias:0;--light-lightness:.57;--dark-lightness:calc(var(--light-lightness) * .75);--lightness-value:var(--light-lightness);--lightness:calc(var(--lightness-value) + var(--lightness-bias));--border-radius:0.5rem;--grid-fit-min:15rem;--brand:hsl(
+:root,:root.light{color-scheme:light dark;--mode:light;--uib-css:uib-brand;--font-family:sans-serif;--brand-hue:200;--text-hue:var(--brand-hue);--surface-hue:var(--brand-hue);--complementary-offset:180;--accent-offset:30;--saturation-bias:0;--light-saturation:.66;--dark-saturation:calc(var(--light-saturation) * .6);--saturation-value:var(--light-saturation);--saturation:calc(var(--saturation-value) + var(--saturation-bias));--lightness-bias:0;--light-lightness:.57;--dark-lightness:calc(var(--light-lightness) * .75);--lightness-value:var(--light-lightness);--lightness:calc(var(--lightness-value) + var(--lightness-bias));--border-radius:0.5rem;--border-pad:0.5rem;--border-margin:0;--grid-fit-min:15rem;--brand:hsl(
         var(--brand-hue)
         calc(100% * var(--saturation))
         calc(100% * var(--lightness))
@@ -121,4 +121,4 @@
         var(--secondary-hue)
         calc(100% * var(--saturation))
         calc(100% * var(--lightness))
-    );--secondary:var(--secondary-bg)}@media (prefers-color-scheme:light){:root{color-scheme:light dark;--mode:light}}@media (prefers-color-scheme:dark){:root{color-scheme:dark light;--mode:dark;--saturation-value:var(--dark-saturation);--lightness-value:var(--dark-lightness);--surface-shadow:var(--surface-shadow-dark);--shadow-strength:var(--shadow-strength-dark);--text-factor:var(--dark-text-factor);--text-lightness:var(--dark-text-lightness);--surfaces-factor:var(--dark-surfaces-factor);--surfaces-lightness:var(--dark-surfaces-lightness)}}:root.dark{color-scheme:dark light;--mode:dark;--saturation-value:var(--dark-saturation);--lightness-value:var(--dark-lightness);--surface-shadow:var(--surface-shadow-dark);--shadow-strength:var(--shadow-strength-dark);--text-factor:var(--dark-text-factor);--text-lightness:var(--dark-text-lightness);--surfaces-factor:var(--dark-surfaces-factor);--surfaces-lightness:var(--dark-surfaces-lightness)}.brand{color:var(--text1);background-color:var(--brand)}.complementary{color:var(--text1);background-color:var(--complementary)}.surface1{background-color:var(--surface1);color:var(--text2)}.surface2{background-color:var(--surface2);color:var(--text2)}.surface3{background-color:var(--surface3);color:var(--text1)}.surface4{background-color:var(--surface4);color:var(--text1)}.surface5{background-color:var(--surface5);color:var(--text1)}.rad-shadow{box-shadow:var(--shadow)}.info{color:var(--text1)!important;background-color:var(--info)!important}.info-intense{color:var(--text1)!important;background-color:var(--info-intense)!important}.success{color:var(--text1)!important;background-color:var(--success)!important}.success-intense{color:var(--text1)!important;background-color:var(--success-intense)!important}.warn,.warning{color:var(--text1)!important;background-color:var(--warning)!important}.warn-intense,.warning-intense{color:var(--text1)!important;background-color:var(--warning-intense)!important}.danger,.error,.failure{color:var(--text1)!important;background-color:var(--failure)!important}.danger-intense,.error-intense,.failure-intense{color:var(--text1)!important;background-color:var(--failure-intense)!important}.primary{color:var(--primary-fg);background-color:var(--primary-bg)}.secondary{color:var(--secondary-fg);background-color:var(--secondary-bg)}*{box-sizing:border-box}html{line-height:1.5;font-size:100%;background-color:var(--surface2);color:var(--text2);accent-color:var(--brand)}body{margin-left:1rem;margin-right:1rem;font-family:var(--font-family)}h1,h2,h3,h4,h5,h6,heading{line-height:1.3}canvas,img,picture,svg,video{object-fit:cover;vertical-align:bottom;max-width:100%;background-color:var(--surface2);margin:1rem}blockquote,dl,dt,h1,h2,h3,h4,h5,h6,heading,li,p{overflow-wrap:break-word;-webkit-hyphens:auto;hyphens:auto;word-break:break-word}div>p{margin-left:1rem;margin-right:1rem}button,input[type=button i],input[type=reset i],input[type=submit i]{align-items:center;justify-content:center;border:none;padding:.5rem 1rem;text-decoration:none;background-color:var(--info);color:var(--text1);font-family:inherit;font-size:1rem;line-height:1.1;cursor:pointer;text-align:center;transition:background 250ms ease-in-out,transform 150ms ease;-webkit-appearance:none;-moz-appearance:none;appearance:none;border-radius:var(--border-radius);box-shadow:inset 2px 2px 3px rgba(255,255,255,.3),inset -2px -2px 3px rgba(0,0,0,.3)}button:hover,input[type=button i]:hover,input[type=reset i]:hover,input[type=submit i]:hover{background-color:hsl(var(--info-hsl) / .5)}button:focus,input[type=button i]:focus,input[type=reset i]:focus,input[type=submit i]:focus{outline:1px solid var(--text4);outline-offset:-4px}button:active,input[type=button i]:active,input[type=reset i]:active,input[type=submit i]:active{transform:scale(.97)}button,input,select,textarea{font:inherit}blockquote{border:1px solid var(--text3);padding:.3rem;box-shadow:var(--shadow)}code{font-size:120%}main{padding-left:1rem;padding-right:1rem;max-width:64rem;margin-left:auto;margin-right:auto}table{border-collapse:collapse;border:1px solid var(--text3);margin-top:1rem;margin-bottom:1rem}thead td,thead th{color:var(--text2);font-weight:bolder;background:var(--surface4)}tfoot td,tfoot th{color:var(--text2);font-style:italic;background:var(--surface4)}tbody th,th[scope=row]{font-style:italic;color:var(--text2);font-weight:lighter;background:var(--surface4);background-blend-mode:lighten;text-align:left}td,th{padding:.5rem;border:1px solid var(--text4)}tbody tr:nth-child(even){color:var(--text2);background-color:var(--surface3);background-blend-mode:lighten}form{border:1px solid var(--text3);margin:.5rem;padding:.5rem;border-radius:var(--border-radius);display:flex;gap:1em;flex-direction:column}input[type=color]{width:100%;height:2.5rem}input:invalid,select:invalid,textarea:invalid{border:2px solid var(--failure)}form input,form select,form textarea{flex:2;border-radius:var(--border-radius);padding:.2rem;border:1px solid var(--text3)}form select{cursor:pointer;transition:background 250ms ease-in-out,transform 150ms ease;box-shadow:inset 1px 1px 2px rgba(255,255,255,.3),inset -1px -1px 2px rgba(0,0,0,.3);background-color:hsl(var(--brand-hue) calc(60% * var(--saturation)) calc(100% * var(--lightness)))}form button,form input[type=reset i],form input[type=submit i],input[type=button i]{width:auto;margin-left:.2em;margin-right:.2em}form input[type=checkbox i]{height:1.5em}form:invalid button{background-color:var(--warning)}form label{flex:1}form label[required]::after{content:" *"}form>div{display:inherit}form>label{align-self:center;text-transform:capitalize}form>label:focus-within{font-weight:700}@media screen and (max-width:600px){form,form *{display:block;width:100%}form>div.btn-row,form>label{margin-top:.8rem}form>:not(label){margin-bottom:.5rem}}.emoji{font-family:"Twemoji Mozilla","Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji","EmojiOne Color","Android Emoji",sans-serif}.noborder{border:none}.border{border:1px solid var(--text3);border-radius:var(--border-radius)}.box{border:1px solid var(--text3);border-radius:var(--border-radius);padding:.5rem}.box h2,.box h3,.box h4,.box h5,.box h6{margin-top:.5rem}.with-subtitle{margin-bottom:0}[role=doc-subtitle]{font-size:smaller;font-style:italic;margin-bottom:1em}.uppercase{text-transform:uppercase}.center,.centre{margin-left:auto;margin-right:auto;text-align:center}.animate-pulse{animation:pulse 2s cubic-bezier(.4,0,.6,1) infinite}@keyframes pulse{50%{opacity:.5}}.status-side-panel{border-radius:9999px;width:.5rem;height:100%;background-color:var(--surface1)}.text-smaller{font-size:smaller}.text-larger{font-size:larger}.compact{margin:0;padding-top:.2rem;padding-bottom:.2rem}button.compact{padding:2px 5px;border-radius:0;background:inherit;margin:2px}.toaster{position:absolute;top:0;left:0;min-width:100vw;min-height:100vh;-webkit-backdrop-filter:grayscale(60%) blur(10px);backdrop-filter:grayscale(60%) blur(10px);display:flex;flex-direction:column;justify-content:center;align-items:center;z-index:998}.toast{border:4px solid var(--text3);border-radius:var(--border-radius);box-shadow:var(--shadow2);background-clip:border-box;box-sizing:border-box;min-width:50vw;max-width:50vw;max-height:50vh;overflow-y:auto;padding:1em;margin-bottom:.5em;margin-top:.5em;z-index:999}.toast.alert{border:4px solid var(--text3);border-radius:var(--border-radius);box-shadow:var(--shadow2);background-clip:border-box;box-sizing:border-box;min-width:50vw;max-width:50vw;max-height:50vh;overflow-y:auto;padding:1em;margin-bottom:.5em;margin-top:.5em;z-index:999}.toast-head{font-weight:700}.status-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(14em,1fr));gap:.5rem;list-style-position:inside}.status-heading{grid-column:1/-1}.status-link{display:contents;color:inherit;text-decoration:none}.grid{display:grid;gap:.5rem}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.5rem}.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.5rem}.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:.5rem}.grid-fit{display:grid;gap:.5rem;grid-template-columns:repeat(auto-fit,minmax(min(var(--grid-fit-min),100%),1fr))}.flex{display:flex;gap:.5rem}.flex-wrap{display:flex;flex-wrap:wrap;gap:.5rem}#uib_last_msg_wrap{position:relative}#uib_last_msg_wrap>button{display:none;position:absolute;color:hsl(0,0%,50%,.5)}#uib_last_msg_wrap:hover>button{display:initial}#uib_last_msg_wrap>button:hover{color:#7f7f7f}.syntax-highlight{color:#fff;display:block;background-color:#000;padding:5px 10px;font-family:Consolas,ui-monospace,"Lucida Console",monospace;font-size:smaller;white-space:pre;width:99%;height:22em;overflow:auto;resize:both}.syntax-highlight>.key{color:#ffbf35}.syntax-highlight>.string{color:#5dff39}.syntax-highlight>.number{color:#70aeff}.syntax-highlight>.boolean{color:#b993ff}.syntax-highlight>.null{color:#93ffe4}.syntax-highlight>.undefined{color:#ff93c9}
\ No newline at end of file
+    );--secondary:var(--secondary-bg)}@media (prefers-color-scheme:light){:root{color-scheme:light dark;--mode:light}}@media (prefers-color-scheme:dark){:root{color-scheme:dark light;--mode:dark;--saturation-value:var(--dark-saturation);--lightness-value:var(--dark-lightness);--surface-shadow:var(--surface-shadow-dark);--shadow-strength:var(--shadow-strength-dark);--text-factor:var(--dark-text-factor);--text-lightness:var(--dark-text-lightness);--surfaces-factor:var(--dark-surfaces-factor);--surfaces-lightness:var(--dark-surfaces-lightness)}}:root.dark{color-scheme:dark light;--mode:dark;--saturation-value:var(--dark-saturation);--lightness-value:var(--dark-lightness);--surface-shadow:var(--surface-shadow-dark);--shadow-strength:var(--shadow-strength-dark);--text-factor:var(--dark-text-factor);--text-lightness:var(--dark-text-lightness);--surfaces-factor:var(--dark-surfaces-factor);--surfaces-lightness:var(--dark-surfaces-lightness)}.brand{color:var(--text1);background-color:var(--brand)}.complementary{color:var(--text1);background-color:var(--complementary)}.surface1{background-color:var(--surface1);color:var(--text2)}.surface2{background-color:var(--surface2);color:var(--text2)}.surface3{background-color:var(--surface3);color:var(--text1)}.surface4{background-color:var(--surface4);color:var(--text1)}.surface5{background-color:var(--surface5);color:var(--text1)}.rad-shadow{box-shadow:var(--shadow)}.info{color:var(--text1)!important;background-color:var(--info)!important}.info-intense{color:var(--text1)!important;background-color:var(--info-intense)!important}.success{color:var(--text1)!important;background-color:var(--success)!important}.success-intense{color:var(--text1)!important;background-color:var(--success-intense)!important}.warn,.warning{color:var(--text1)!important;background-color:var(--warning)!important}.warn-intense,.warning-intense{color:var(--text1)!important;background-color:var(--warning-intense)!important}.danger,.error,.failure{color:var(--text1)!important;background-color:var(--failure)!important}.danger-intense,.error-intense,.failure-intense{color:var(--text1)!important;background-color:var(--failure-intense)!important}.primary{color:var(--primary-fg);background-color:var(--primary-bg)}.secondary{color:var(--secondary-fg);background-color:var(--secondary-bg)}*{box-sizing:border-box}html{line-height:1.5;font-size:100%;background-color:var(--surface2);color:var(--text2);accent-color:var(--brand)}body{margin-left:1rem;margin-right:1rem;font-family:var(--font-family)}h1,h2,h3,h4,h5,h6,heading{line-height:1.3}canvas,img,picture,svg,video{object-fit:cover;vertical-align:bottom;max-width:100%;background-color:var(--surface2);margin:1rem}blockquote,dl,dt,h1,h2,h3,h4,h5,h6,heading,li,p{overflow-wrap:break-word;-webkit-hyphens:auto;hyphens:auto;word-break:break-word}div>p{margin-left:1rem;margin-right:1rem}button,input[type=button i],input[type=reset i],input[type=submit i]{align-items:center;justify-content:center;border:none;padding:.5rem 1rem;text-decoration:none;background-color:var(--info);color:var(--text1);font-family:inherit;font-size:1rem;line-height:1.1;cursor:pointer;text-align:center;transition:background 250ms ease-in-out,transform 150ms ease;-webkit-appearance:none;-moz-appearance:none;appearance:none;border-radius:var(--border-radius);box-shadow:inset 2px 2px 3px rgba(255,255,255,.3),inset -2px -2px 3px rgba(0,0,0,.3)}button:hover,input[type=button i]:hover,input[type=reset i]:hover,input[type=submit i]:hover{background-color:hsl(var(--info-hsl) / .5)}button:focus,input[type=button i]:focus,input[type=reset i]:focus,input[type=submit i]:focus{outline:1px solid var(--text4);outline-offset:-4px}button:active,input[type=button i]:active,input[type=reset i]:active,input[type=submit i]:active{transform:scale(.97)}button,input,select,textarea{font:inherit}blockquote{border:1px solid var(--text3);padding:.3rem;box-shadow:var(--shadow)}code{font-size:120%}main{padding-left:1rem;padding-right:1rem;max-width:64rem;margin-left:auto;margin-right:auto}table{border-collapse:collapse;border:1px solid var(--text3);margin-top:1rem;margin-bottom:1rem}thead td,thead th{color:var(--text2);font-weight:bolder;background:var(--surface4)}tfoot td,tfoot th{color:var(--text2);font-style:italic;background:var(--surface4)}tbody th,th[scope=row]{font-style:italic;color:var(--text2);font-weight:lighter;background:var(--surface4);background-blend-mode:lighten;text-align:left}td,th{padding:.5rem;border:1px solid var(--text4)}tbody tr:nth-child(even){color:var(--text2);background-color:var(--surface3);background-blend-mode:lighten}form{border:1px solid var(--text3);margin:.5rem;padding:.5rem;border-radius:var(--border-radius);display:flex;gap:1em;flex-direction:column}input[type=color]{width:100%;height:2.5rem}input:invalid,select:invalid,textarea:invalid{border:2px solid var(--failure)}form input,form select,form textarea{flex:2;border-radius:var(--border-radius);padding:.2rem;border:1px solid var(--text3)}form select{cursor:pointer;transition:background 250ms ease-in-out,transform 150ms ease;box-shadow:inset 1px 1px 2px rgba(255,255,255,.3),inset -1px -1px 2px rgba(0,0,0,.3);background-color:hsl(var(--brand-hue) calc(60% * var(--saturation)) calc(100% * var(--lightness)))}form button,form input[type=reset i],form input[type=submit i],input[type=button i]{width:auto;margin-left:.2em;margin-right:.2em}form input[type=checkbox i]{height:1.5em}form:invalid button{background-color:var(--warning)}form label{flex:1}form label[required]::after{content:" *"}form>div{display:inherit}form>label{align-self:center;text-transform:capitalize}form>label:focus-within{font-weight:700}@media screen and (max-width:600px){form,form *{display:block;width:100%}form>div.btn-row,form>label{margin-top:.8rem}form>:not(label){margin-bottom:.5rem}}.emoji{font-family:"Twemoji Mozilla","Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji","EmojiOne Color","Android Emoji",sans-serif}.noborder{border:none}.border{border:1px solid var(--text3);border-radius:var(--border-radius);padding:var(--border-pad);margin:var(--border-margin)}.box{border:1px solid var(--text3);border-radius:var(--border-radius);padding:.5rem}.box h2,.box h3,.box h4,.box h5,.box h6{margin-top:.5rem}.with-subtitle{margin-bottom:0}[role=doc-subtitle]{font-size:smaller;font-style:italic;margin-bottom:1em}.uppercase{text-transform:uppercase}.center,.centre{margin-left:auto;margin-right:auto;text-align:center}.animate-pulse{animation:pulse 2s cubic-bezier(.4,0,.6,1) infinite}@keyframes pulse{50%{opacity:.5}}.status-side-panel{border-radius:9999px;width:.5rem;height:100%;background-color:var(--surface1)}.text-smaller{font-size:smaller}.text-larger{font-size:larger}.compact{margin:0;padding-top:.2rem;padding-bottom:.2rem}button.compact{padding:2px 5px;border-radius:0;background:inherit;margin:2px}.toaster{position:absolute;top:0;left:0;min-width:100vw;min-height:100vh;-webkit-backdrop-filter:grayscale(60%) blur(10px);backdrop-filter:grayscale(60%) blur(10px);display:flex;flex-direction:column;justify-content:center;align-items:center;z-index:998}.toast{border:4px solid var(--text3);border-radius:var(--border-radius);box-shadow:var(--shadow2);background-clip:border-box;box-sizing:border-box;min-width:50vw;max-width:50vw;max-height:50vh;overflow-y:auto;padding:1em;margin-bottom:.5em;margin-top:.5em;z-index:999}.toast.alert{border:4px solid var(--text3);border-radius:var(--border-radius);box-shadow:var(--shadow2);background-clip:border-box;box-sizing:border-box;min-width:50vw;max-width:50vw;max-height:50vh;overflow-y:auto;padding:1em;margin-bottom:.5em;margin-top:.5em;z-index:999}.toast-head{font-weight:700}.status-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(14em,1fr));gap:.5rem;list-style-position:inside}.status-heading{grid-column:1/-1}.status-link{display:contents;color:inherit;text-decoration:none}.grid{display:grid;gap:.5rem}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.5rem}.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.5rem}.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:.5rem}.grid-fit{display:grid;gap:.5rem;grid-template-columns:repeat(auto-fit,minmax(min(var(--grid-fit-min),100%),1fr))}.flex{display:flex;gap:.5rem}.flex-wrap{display:flex;flex-wrap:wrap;gap:.5rem}#uib_last_msg_wrap{position:relative}#uib_last_msg_wrap>button{display:none;position:absolute;color:hsl(0,0%,50%,.5)}#uib_last_msg_wrap:hover>button{display:initial}#uib_last_msg_wrap>button:hover{color:#7f7f7f}.syntax-highlight{color:#fff;display:block;background-color:#000;padding:5px 10px;font-family:Consolas,ui-monospace,"Lucida Console",monospace;font-size:smaller;white-space:pre;width:99%;height:22em;overflow:auto;resize:both}.syntax-highlight>.key{color:#ffbf35}.syntax-highlight>.string{color:#5dff39}.syntax-highlight>.number{color:#70aeff}.syntax-highlight>.boolean{color:#b993ff}.syntax-highlight>.null{color:#93ffe4}.syntax-highlight>.undefined{color:#ff93c9}
\ No newline at end of file

From 98af7b57b880ae58153f54d17b2355c392074aba Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Fri, 29 Dec 2023 13:13:44 +0000
Subject: [PATCH 40/78] FIX: Chk if RED.settings.uibuilderNodeEnv exists before
 using it.

---
 resources/ti-common.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/resources/ti-common.js b/resources/ti-common.js
index f9a29fa0..74c03170 100644
--- a/resources/ti-common.js
+++ b/resources/ti-common.js
@@ -121,8 +121,10 @@
         uibuilder.urlPrefix = `${eUrlSplit.join(':')}/${uibuilder.nodeRoot}`
         //#endregion ---- ---- ----
 
-        uibuilder.debug = RED.settings.uibuilderNodeEnv.toLowerCase() === 'development' || RED.settings.uibuilderNodeEnv.toLowerCase() === 'dev' // uibuilder.localHost
-        uibuilder.log(`[uibuilder] DEBUG ON (because env NODE_ENV is '${RED.settings.uibuilderNodeEnv}')`)
+        if (RED.settings.uibuilderNodeEnv) {
+            uibuilder.debug = RED.settings.uibuilderNodeEnv.toLowerCase() === 'development' || RED.settings.uibuilderNodeEnv.toLowerCase() === 'dev' // uibuilder.localHost
+            uibuilder.log(`[uibuilder] DEBUG ON (because env NODE_ENV is '${RED.settings.uibuilderNodeEnv}')`)
+        }
 
         /** Get initial list of installed FE packages via v2 API - save to master list */
         $.ajax({

From 58bee9277cf398ca44f6ca2307084afb42f07efa Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Fri, 29 Dec 2023 13:15:15 +0000
Subject: [PATCH 41/78] Add validation of slotSourceProp and allow blanks

---
 nodes/uib-update/customNode.html | 2 +-
 src/editor/uib-update/editor.js  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/nodes/uib-update/customNode.html b/nodes/uib-update/customNode.html
index 71c2585b..13344e84 100644
--- a/nodes/uib-update/customNode.html
+++ b/nodes/uib-update/customNode.html
@@ -333,7 +333,7 @@ <h3>Details</h3>
                 cssSelector: { value: '', validate: (v) => tiValidateOptString(v, 'cssSelector', false, true) },
                 cssSelectorType: { value: 'str', required: true },
     
-                slotSourceProp: { value: '' },
+                slotSourceProp: { value: '', validate: (v) => tiValidateOptString(v, 'slotSourceProp', true, true) },
                 slotSourcePropType: { value: 'msg' },
     
                 attribsSource: { value: '' },
diff --git a/src/editor/uib-update/editor.js b/src/editor/uib-update/editor.js
index 78a721b9..d3a06177 100644
--- a/src/editor/uib-update/editor.js
+++ b/src/editor/uib-update/editor.js
@@ -141,7 +141,7 @@
             cssSelector: { value: '', validate: (v) => tiValidateOptString(v, 'cssSelector', false, true) },
             cssSelectorType: { value: 'str', required: true },
 
-            slotSourceProp: { value: '' },
+            slotSourceProp: { value: '', validate: (v) => tiValidateOptString(v, 'slotSourceProp', true, true) },
             slotSourcePropType: { value: 'msg' },
 
             attribsSource: { value: '' },

From ed8482dffe49c4325ad59dc8c924058271d3a244 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Fri, 29 Dec 2023 13:18:55 +0000
Subject: [PATCH 42/78] Add topic processing. Change ext style from brand to
 index.css. Add filter processing.

---
 src/components/uib-var.js | 196 ++++++++++++++++++++++++++++++--------
 1 file changed, 157 insertions(+), 39 deletions(-)

diff --git a/src/components/uib-var.js b/src/components/uib-var.js
index 0429aa7f..4835c218 100644
--- a/src/components/uib-var.js
+++ b/src/components/uib-var.js
@@ -1,12 +1,9 @@
 /** A zero dependency web component that will display a managed uibuilder variable.
  *
- * Version: 0.0.1 2023-10-07
- *
- * ToDo:
- * -
+ * Version: 1.0.1 2023-12-27
  */
 /*
-  Copyright (c) 2023 Julian Knight (Totally Information)
+  Copyright (c) 2023-2024 Julian Knight (Totally Information)
 
   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
@@ -35,37 +32,41 @@ export default class UibVar extends HTMLElement {
     /** Current value of the watched variable */
     value
     /** Whether to output if the variable is undefined */
-    undefined = false
+    undef = false
     /** Whether to send update value to Node-RED on change */
     report = false
     /** What is the value type */
     type = 'plain'
     /** what are the available types? */
     types = ['plain', 'html', 'markdown', 'object']
+    /** Holds uibuilder.onTopic listeners */
+    topicMonitors = {}
+    /** Is UIBUILDER loaded? */
+    uib = !!window['uibuilder']
 
     /** Mini jQuery-like shadow dom selector (see constructor) */
     $
-    
+
     /** Holds a count of how many instances of this component are on the page */
     static _iCount = 0
     /** @type {Array<string>} List of all of the html attribs (props) listened to */
-    static props = ['name', 'id', 'variable', 'undefined', 'report', 'type']
+    static props = ['filter', 'id', 'name', 'report', 'topic', 'type', 'undefined', 'variable',]
     //#endregion --- Class Properties ---
 
     constructor() {
         super()
         this.shadow = this.attachShadow({ mode: 'open', delegatesFocus: true })
-            // .append(template.content.cloneNode(true))
+        //  .append(template.content.cloneNode(true))
 
         this.$ = this.shadowRoot.querySelector.bind(this.shadowRoot)
 
-        // Apply external styles to the shadow dom
-        this.css = document.createElement("link")
-        this.css.setAttribute("type", "text/css")
-        this.css.setAttribute("rel", "stylesheet")
-        this.css.setAttribute("href", "../uibuilder/uib-brand.min.css")
+        // Apply external styles to the shadow dom - assumes you use index.css in same url location as main url
+        this.css = document.createElement('link')
+        this.css.setAttribute('type', 'text/css')
+        this.css.setAttribute('rel', 'stylesheet')
+        this.css.setAttribute('href', './index.css')
 
-        this.dispatchEvent(new Event(`uib-var:construction`, { bubbles: true, composed: true }))
+        this.dispatchEvent(new Event('uib-var:construction', { bubbles: true, composed: true }))
     }
 
     // Makes HTML attribute change watched
@@ -73,20 +74,27 @@ export default class UibVar extends HTMLElement {
         return UibVar.props
     }
 
-    /** NOTE: On initial startup, this is called for each watched attrib set in HTML - BEFORE connectedCallback is called  */
+    /** Handle watched attributes
+     * NOTE: On initial startup, this is called for each watched attrib set in HTML - BEFORE connectedCallback is called.
+     * Attribute values can only ever be strings
+     * @param {string} attrib The name of the attribute that is changing
+     * @param {string} newVal The new value of the attribute
+     * @param {string} oldVal The old value of the attribute
+     */
     attributeChangedCallback(attrib, oldVal, newVal) {
         if ( oldVal === newVal ) return
 
         switch (attrib) {
             case 'variable': {
+                // NB Doesn't check if var exists because it might not be set yet
                 if (newVal === '') throw new Error('[uib-var] Attribute "variable" MUST be set to a UIBUILDER managed variable name')
                 this.variable = newVal
                 this.doWatch()
                 break
             }
             case 'undefined': {
-                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.undefined = true
-                else this.undefined = false
+                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.undef = true
+                else this.undef = false
                 break
             }
             case 'report': {
@@ -99,6 +107,80 @@ export default class UibVar extends HTMLElement {
                 else this.type = newVal
                 break
             }
+            case 'topic': {
+                // console.log(1, attrib, newVal)
+                // Handle empty topic
+                if (!newVal) break
+                // Ignore if not using uibuilder
+                if (!this.uib) break
+                // If variable attrib set, give warning and ignore
+                if (this.variable) {
+                    console.warn('⚠️ [uib-var] Cannot process both variable and topic attributes, use only 1. Using variable')
+                    break
+                }
+
+                this.topic = newVal
+
+                // Cancel old listener just in case
+                if (this.topicMonitors[newVal]) uibuilder.cancelTopic(newVal, this.topicMonitors[newVal])
+                // Set up a uibuilder listener for this topic - ASSUMES msg.payload contains the VALUE to show
+                this.topicMonitors[newVal] = uibuilder.onTopic(newVal, (msg) => {
+                    // console.log('topicMonitor ', newVal, msg)
+                    this.value = msg.payload
+                    this.varDom()
+                    if (this.report === true) window['uibuilder'].send({ topic: this.variable, payload: this.value || undefined })
+                })
+                this.varDom()
+
+                break
+            }
+            case 'filter': {
+                this.filter = undefined
+                this.filterArgs = []
+
+                // Handle empty filter
+                if (!newVal) break
+
+                this.filter = newVal
+
+                // Filter the input - at least limit the length of the attr
+                newVal = newVal.slice(0, 127)
+                // Remove spaces and then separate fn name from potential extra arguments
+                const f = newVal.replace(/\s/g, '').match(/([a-zA-Z_$][a-zA-Z_$0-9.-]+)(\((.*)\))?/)
+                if (!f) {
+                    console.warn(`⚠️ [uib-var] Filter function "${newVal}" invalid. Cannot process.`)
+                    break
+                }
+                // Fn name
+                this.filter = f[1]
+                // Fn arguments
+                if (f[3]) { // undefined if no args found
+                    // TODO Do we really want to try this?
+                    try {
+                        this.filterArgs = JSON.parse(f[3])
+                    } catch (e) {}
+
+                    this.filterArgs = f[3].split(',').map((x) => {
+                        // No objects/arrays allowed - if they have a , they are split
+                        x = x.trim()
+                        // @ts-ignore NB: Do NOT use Number.isNaN here, it is too narrow minded
+                        if (isNaN(x)) {
+                            // String inside string ends up double quoted so remove those
+                            let y = x.replace(/^["'`]/, '').replace(/["'`]$/, '')
+                            // Attempt very limited parse in case it is valid object/array
+                            try {
+                                y = new Function(`return ${y}`)() // eslint-disable-line no-new-func
+                            } catch (e) {}
+                            return y
+                        }
+                        return Number(x)
+                    })
+                }
+
+                // Apply the filter directly if neither variable nor topic attribs set
+                if (!this.variable && !this.topic) this.varDom(false)
+                break
+            }
 
             default: {
                 this[attrib] = newVal
@@ -118,12 +200,19 @@ export default class UibVar extends HTMLElement {
     }  // ---- end of connectedCallback ---- //
 
     // Runs when an instance is removed from the DOM
-    // disconnectedCallback() {} // ---- end of disconnectedCallback ---- //
+    disconnectedCallback() {
+        // Ignore if not using uibuilder
+        if (this.uib) {
+            Object.keys(this.topicMonitors).forEach( topic => {
+                uibuilder.cancelTopic(topic, this.topicMonitors[topic])
+            })
+        }
+    } // ---- end of disconnectedCallback ---- //
 
     /** Process changes to the required uibuilder variable */
     doWatch() {
         if (!this.variable) throw new Error('No variable name provided')
-        // if (!window['uibuilder']) throw new Error('UIBUILDER client library not loaded - this component must be loaded AFTER the UIBUILDER library')
+        // if (!this.uib) throw new Error('UIBUILDER client library not loaded - this component must be loaded AFTER the UIBUILDER library')
 
         this.value = window['uibuilder'].get(this.variable)
         this.varDom()
@@ -132,56 +221,85 @@ export default class UibVar extends HTMLElement {
         window['uibuilder'].onChange(this.variable, (val) => {
             this.value = val
             this.varDom()
-            if (this.report === true) window['uibuilder'].send({topic: this.variable, payload: this.value || undefined})
+            if (this.report === true) window['uibuilder'].send({ topic: this.variable, payload: this.value || undefined })
         })
     }
 
-    /** Convert this.value to DOM output */
-    varDom() {
+    /** Convert this.value to DOM output (applies output filter if needed)
+     * @param {boolean} chkVal If true (default), check for undefined value. False used to run filter even with no value set.
+     */
+    varDom(chkVal = true) {
         // If user doesn't want to show undefined vars, allow the component slot to show instead
-        if (this.value === undefined && this.undefined !== true) { 
+        if (chkVal === true && !this.value && this.undef !== true) {
             this.shadow.innerHTML = '<slot></slot>'
             return
         }
-        
-        let val = this.value
+
+        // Apply the filter to the value before display
+        const val = chkVal ? this.doFilter(this.value) : this.doFilter()
 
         // console.log('🧪 varDOM: ', val, typeof val, this.type)
 
+        let out = val
+
         switch (this.type) {
             case 'markdown': {
-                this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(window['uibuilder'].convertMarkdown(val))
+                if (this.uib) out = window['uibuilder'].convertMarkdown(val)
                 break
             }
-        
+
             case 'object': {
                 // console.log(window['uibuilder'].syntaxHighlight(val))
-                this.shadow.innerHTML = `<pre class="syntax-highlight">${window['uibuilder'].syntaxHighlight(val)}</pre>`
+                out = `<pre class="syntax-highlight">${this.uib ? window['uibuilder'].syntaxHighlight(val) : val}</pre>`
                 break
             }
-        
+
             case 'plain':
             case 'html':
             default: {
                 const t = typeof val
                 if (Array.isArray(val) || t === '[object Object]' || t === 'object') {
                     try {
-                        this.shadow.innerHTML = JSON.stringify(val)
-                    } catch (e) {
-                        this.shadow.innerHTML = val
-                    }
-                } else {
-                    this.shadow.innerHTML = val
+                        out = JSON.stringify(val)
+                    } catch (e) {}
                 }
                 break
             }
         }
+        if (this.uib) this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(out)
+        else this.shadow.innerHTML = out
 
         this.shadow.appendChild(this.css)
-        // this.$('span').innerHTML = window['uibuilder'].sanitiseHTML(val)
-        // this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(val)
+    }
+
+    /** Apply value filter if specified
+     * @param {*} value The value to change
+     * @returns {*} The amended value that will be displayed
+     */
+    doFilter(value) {
+        if (this.filter) {
+            // Cater for dotted notation functions (e.g. uibuilder.get)
+            const splitFilter = this.filter.split('.')
+            let globalFn = globalThis[splitFilter[0]]
+            if (globalFn && splitFilter.length > 1) {
+                const parts = [splitFilter.pop()]
+                parts.forEach( part => {
+                    globalFn = globalFn[part]
+                } )
+            }
+            if (!globalFn && this.uib === true) globalFn = globalThis['uibuilder'][splitFilter[0]]
+            if (globalFn && typeof globalFn !== 'function' ) globalFn = undefined
+            if (globalFn) {
+                const argList = value === undefined ? [...this.filterArgs] : [value, ...this.filterArgs]
+                value = Reflect.apply(globalFn, value ?? globalFn, argList)
+            } else {
+                console.warn(`⚠️ [uib-var] Filter function "${this.filter}" ${typeof globalFn === 'object' ? 'is an object not a function' : 'not found'}`)
+            }
+        }
+
+        return value
     }
 }
 
-// Add the class as a new Custom Element to the window object 
+// Add the class as a new Custom Element to the window object
 // customElements.define('uib-var', UibVar)

From 8043cecbfba98661f14227905083ed0605f1ddd1 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Fri, 29 Dec 2023 13:20:26 +0000
Subject: [PATCH 43/78] Add std menu updates & managed uib vars on route
 changes. Add routeHeading & currentRoute fns.

---
 front-end/utils/uibrouter.esm.js          | 28 +++++++++++++++++-
 front-end/utils/uibrouter.esm.min.js      |  4 +--
 front-end/utils/uibrouter.esm.min.js.map  |  6 ++--
 front-end/utils/uibrouter.iife.js         | 28 +++++++++++++++++-
 front-end/utils/uibrouter.iife.min.js     |  4 +--
 front-end/utils/uibrouter.iife.min.js.map |  6 ++--
 src/front-end-module/uibrouter.js         | 36 ++++++++++++++++++++++-
 7 files changed, 99 insertions(+), 13 deletions(-)

diff --git a/front-end/utils/uibrouter.esm.js b/front-end/utils/uibrouter.esm.js
index 94a0c769..1ae81855 100644
--- a/front-end/utils/uibrouter.esm.js
+++ b/front-end/utils/uibrouter.esm.js
@@ -234,9 +234,14 @@ var UibRouter = class {
     this.currentRouteId = newRouteId;
     this.previousRouteId = oldRouteId;
     container.dataset.currentRoute = newRouteId;
+    this.setCurrentMenuItems();
     document.dispatchEvent(new CustomEvent("uibrouter:route-changed", { detail: { newRouteId, oldRouteId } }));
-    if (uibuilder)
+    if (uibuilder) {
       uibuilder.set("uibrouter", "route changed");
+      uibuilder.set("uibrouter_CurrentRoute", newRouteId);
+      uibuilder.set("uibrouter_CurrentHeading", this.routeHeading());
+      uibuilder.set("uibrouter_CurrentDetails", this.getRouteConfigById(newRouteId));
+    }
   }
   /** Return a route config given a route id (returns undefined if route not found)
    * @param {string} routeId Route ID to search for
@@ -296,6 +301,27 @@ var UibRouter = class {
         uibuilder.set("uibrouter", "routes added");
     });
   }
+  //#region --- utils for page display & processing ---
+  setCurrentMenuItems() {
+    const items = document.querySelectorAll("li[data-route]");
+    items.forEach((item) => {
+      if (item.dataset.route === this.currentRouteId) {
+        item.classList.add("currentRoute");
+        item.setAttribute("aria-current", "page");
+      } else {
+        item.classList.remove("currentRoute");
+        item.removeAttribute("aria-current");
+      }
+    });
+  }
+  routeHeading() {
+    const thisRoute = this.currentRoute() || {};
+    return thisRoute.heading || thisRoute.title || thisRoute.description || thisRoute.id || "[ROUTE NOT FOUND]";
+  }
+  currentRoute() {
+    return this.getRouteConfigById(this.currentRouteId);
+  }
+  //#endregion ---- ----- ----
   // TODO
   // deleteRoutes(aRoutes) {
   //     // Delete all if no list provided
diff --git a/front-end/utils/uibrouter.esm.min.js b/front-end/utils/uibrouter.esm.min.js
index ee3c7214..fb64e484 100644
--- a/front-end/utils/uibrouter.esm.min.js
+++ b/front-end/utils/uibrouter.esm.min.js
@@ -1,3 +1,3 @@
-var b=Object.defineProperty;var w=(n,e,t)=>e in n?b(n,e,{enumerable:!0,configurable:!0,writable:!0,value:t}):n[e]=t;var u=(n,e,t)=>(w(n,typeof e!="symbol"?e+"":e,t),t),h=(n,e,t)=>{if(!e.has(n))throw TypeError("Cannot "+t)};var f=(n,e,t)=>(h(n,e,"read from private field"),t?t.call(n):e.get(n)),p=(n,e,t)=>{if(e.has(n))throw TypeError("Cannot add the same private member more than once");e instanceof WeakSet?e.add(n):e.set(n,t)},m=(n,e,t,r)=>(h(n,e,"write to private field"),r?r.call(n,t):e.set(n,t),t);var d,s=class{constructor(e){u(this,"config");u(this,"routeContainerEl");u(this,"currentRouteId");u(this,"previousRouteId");p(this,d,!1);if(!fetch)throw new Error("[uibrouter:constructor] UibRouter requires `fetch`. Please use a current browser or load a fetch polyfill.");if(!e)throw new Error("[uibrouter:constructor] No config provided");if(!e.routes)throw new Error("[uibrouter:constructor] No routes provided in routerConfig");e.routeContainer||(e.routeContainer="#uibroutecontainer"),this.config=e,this._setRouteContainer(),Promise.all(Object.values(e.routes).filter(t=>t.type==="url").map(this._loadExternal)).then(this._appendExternalTemplates).then(()=>{this._start()})}_setRouteContainer(){let e=document.getElementsByTagName("body")[0],t=this.routeContainerEl=document.querySelector(this.config.routeContainer);if(!t){let r=document.createElement("div");r.setAttribute("id",this.config.routeContainer.replace("#","")),e.append(r),t=this.routeContainerEl=document.querySelector(this.config.routeContainer)}}_appendExternalTemplates(e){let t=document.getElementsByTagName("head")[0];e.forEach(r=>{Array.isArray(r)?console.error(...r):t.append(r)})}_start(){f(this,d)!==!0&&(window.addEventListener("hashchange",e=>this._hashChange(e)),this.doRoute(),document.dispatchEvent(new CustomEvent("uibrouter:loaded")),uibuilder&&uibuilder.set("uibrouter","loaded"),m(this,d,!0))}_hashChange(e){this.doRoute(e)}_createRouteContent(e){let t=document.querySelector(`#${e}`);if(!t)return console.error(`[uibrouter:createRouteContent] No route template found for route selector '#${e}'. Does the link url match a defined route id?`),!1;let r=t.content.cloneNode(!0);this.isRouteExternal(e)&&this._applyScripts(r);let o=document.createElement("div");o.dataset.route=e,o.append(r);try{this.routeContainerEl.append(o)}catch(i){return console.error(`[uibrouter:createRouteContent] Failed to apply route id '${e}'. 
- ${i.message}`),!1}return!0}_loadExternal(e){let t=e.id;return fetch(e.src).then(r=>r.ok===!1?[e.id,e.src,r.status,r.statusText]:r.text()).then(r=>{if(Array.isArray(r))return r;try{let i=document.querySelector(`#${t}`);i&&i.remove()}catch{}let o=document.createElement("template");return o.innerHTML=r,o.setAttribute("id",t),o}).catch(r=>{console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${e.src}:`,r)})}_applyScripts(e){e.querySelectorAll("script").forEach(r=>{let o=document.createElement("script");o.textContent=r.innerText,e.append(o),r.remove()})}doRoute(e){let t=this.routeContainerEl;if(!t)throw new Error("[uibrouter:doRoute] Cannot route, has router.setup() been called yet?");let r=this.keepHashFromUrl(window.location.hash);e||(e=r);let o,i;if(typeof e=="string"){if(o=this.keepHashFromUrl(e),i=r,o===""&&this.config.defaultRoute&&(o=this.config.defaultRoute),o!==r){window.location.hash=`#${o}`;return}}else if(e.type==="hashchange"){let a=e.newURL;if(a.includes("#"))i=this.keepHashFromUrl(e.oldURL),o=this.keepHashFromUrl(a);else return}else{i=r;try{o=this.keepHashFromUrl(e.target.attributes.href.value)}catch{throw new Error("[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute")}}let l=!1;if(!o||!this.routeList().includes(o))throw document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:i}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=i?`#${i}`:"",new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${o}'`);if(this.config.hide){if(i){let c=document.querySelector(`div[data-route="${i}"]`);c&&(c.style.display="none")}let a=document.querySelector(`div[data-route="${o}"]`);a?(a.style.removeProperty("display"),l=!0):l=this._createRouteContent(o)}else t.replaceChildren(),l=this._createRouteContent(o);if(l===!1){document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:i}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=i?`#${i}`:"";return}this.currentRouteId=o,this.previousRouteId=i,t.dataset.currentRoute=o,document.dispatchEvent(new CustomEvent("uibrouter:route-changed",{detail:{newRouteId:o,oldRouteId:i}})),uibuilder&&uibuilder.set("uibrouter","route changed")}getRouteConfigById(e){return Object.values(this.config.routes).filter(t=>t.id===e)[0]}isRouteExternal(e){let t=this.getRouteConfigById(e);return!!(t&&t.type==="url")}defaultRoute(){this.config.defaultRoute&&this.doRoute(this.config.defaultRoute)}removeHash(){history.pushState("",document.title,window.location.pathname+window.location.search)}noRoute(){this.removeHash(),this.routeContainerEl.replaceChildren()}keepHashFromUrl(e){return e?e.replace(/^.*#(.*)/,"$1").replace(/\?.*$/,""):""}routeList(e){return Object.values(this.config.routes).map(t=>e===!0?`#${t.id}`:t.id)}addRoutes(e){Array.isArray(e)||(e=[e]),Promise.all(Object.values(e).filter(t=>t.type==="url").map(this._loadExternal)).then(this._appendExternalTemplates).then(()=>{this.config.routes.push(...e),document.dispatchEvent(new CustomEvent("uibrouter:routes-added",{detail:e})),uibuilder&&uibuilder.set("uibrouter","routes added")})}};d=new WeakMap,u(s,"version","1.0.1");var y=s;window.UibRouter?console.warn("`UibRouter` already assigned to window. Have you tried to load it more than once?"):window.UibRouter=s;export{s as UibRouter,y as default};
+var b=Object.defineProperty;var R=(i,e,t)=>e in i?b(i,e,{enumerable:!0,configurable:!0,writable:!0,value:t}):i[e]=t;var a=(i,e,t)=>(R(i,typeof e!="symbol"?e+"":e,t),t),h=(i,e,t)=>{if(!e.has(i))throw TypeError("Cannot "+t)};var f=(i,e,t)=>(h(i,e,"read from private field"),t?t.call(i):e.get(i)),p=(i,e,t)=>{if(e.has(i))throw TypeError("Cannot add the same private member more than once");e instanceof WeakSet?e.add(i):e.set(i,t)},m=(i,e,t,r)=>(h(i,e,"write to private field"),r?r.call(i,t):e.set(i,t),t);var d,s=class{constructor(e){a(this,"config");a(this,"routeContainerEl");a(this,"currentRouteId");a(this,"previousRouteId");p(this,d,!1);if(!fetch)throw new Error("[uibrouter:constructor] UibRouter requires `fetch`. Please use a current browser or load a fetch polyfill.");if(!e)throw new Error("[uibrouter:constructor] No config provided");if(!e.routes)throw new Error("[uibrouter:constructor] No routes provided in routerConfig");e.routeContainer||(e.routeContainer="#uibroutecontainer"),this.config=e,this._setRouteContainer(),Promise.all(Object.values(e.routes).filter(t=>t.type==="url").map(this._loadExternal)).then(this._appendExternalTemplates).then(()=>{this._start()})}_setRouteContainer(){let e=document.getElementsByTagName("body")[0],t=this.routeContainerEl=document.querySelector(this.config.routeContainer);if(!t){let r=document.createElement("div");r.setAttribute("id",this.config.routeContainer.replace("#","")),e.append(r),t=this.routeContainerEl=document.querySelector(this.config.routeContainer)}}_appendExternalTemplates(e){let t=document.getElementsByTagName("head")[0];e.forEach(r=>{Array.isArray(r)?console.error(...r):t.append(r)})}_start(){f(this,d)!==!0&&(window.addEventListener("hashchange",e=>this._hashChange(e)),this.doRoute(),document.dispatchEvent(new CustomEvent("uibrouter:loaded")),uibuilder&&uibuilder.set("uibrouter","loaded"),m(this,d,!0))}_hashChange(e){this.doRoute(e)}_createRouteContent(e){let t=document.querySelector(`#${e}`);if(!t)return console.error(`[uibrouter:createRouteContent] No route template found for route selector '#${e}'. Does the link url match a defined route id?`),!1;let r=t.content.cloneNode(!0);this.isRouteExternal(e)&&this._applyScripts(r);let o=document.createElement("div");o.dataset.route=e,o.append(r);try{this.routeContainerEl.append(o)}catch(n){return console.error(`[uibrouter:createRouteContent] Failed to apply route id '${e}'. 
+ ${n.message}`),!1}return!0}_loadExternal(e){let t=e.id;return fetch(e.src).then(r=>r.ok===!1?[e.id,e.src,r.status,r.statusText]:r.text()).then(r=>{if(Array.isArray(r))return r;try{let n=document.querySelector(`#${t}`);n&&n.remove()}catch{}let o=document.createElement("template");return o.innerHTML=r,o.setAttribute("id",t),o}).catch(r=>{console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${e.src}:`,r)})}_applyScripts(e){e.querySelectorAll("script").forEach(r=>{let o=document.createElement("script");o.textContent=r.innerText,e.append(o),r.remove()})}doRoute(e){let t=this.routeContainerEl;if(!t)throw new Error("[uibrouter:doRoute] Cannot route, has router.setup() been called yet?");let r=this.keepHashFromUrl(window.location.hash);e||(e=r);let o,n;if(typeof e=="string"){if(o=this.keepHashFromUrl(e),n=r,o===""&&this.config.defaultRoute&&(o=this.config.defaultRoute),o!==r){window.location.hash=`#${o}`;return}}else if(e.type==="hashchange"){let u=e.newURL;if(u.includes("#"))n=this.keepHashFromUrl(e.oldURL),o=this.keepHashFromUrl(u);else return}else{n=r;try{o=this.keepHashFromUrl(e.target.attributes.href.value)}catch{throw new Error("[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute")}}let l=!1;if(!o||!this.routeList().includes(o))throw document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:n}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=n?`#${n}`:"",new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${o}'`);if(this.config.hide){if(n){let c=document.querySelector(`div[data-route="${n}"]`);c&&(c.style.display="none")}let u=document.querySelector(`div[data-route="${o}"]`);u?(u.style.removeProperty("display"),l=!0):l=this._createRouteContent(o)}else t.replaceChildren(),l=this._createRouteContent(o);if(l===!1){document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:n}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=n?`#${n}`:"";return}this.currentRouteId=o,this.previousRouteId=n,t.dataset.currentRoute=o,this.setCurrentMenuItems(),document.dispatchEvent(new CustomEvent("uibrouter:route-changed",{detail:{newRouteId:o,oldRouteId:n}})),uibuilder&&(uibuilder.set("uibrouter","route changed"),uibuilder.set("uibrouter_CurrentRoute",o),uibuilder.set("uibrouter_CurrentHeading",this.routeHeading()),uibuilder.set("uibrouter_CurrentDetails",this.getRouteConfigById(o)))}getRouteConfigById(e){return Object.values(this.config.routes).filter(t=>t.id===e)[0]}isRouteExternal(e){let t=this.getRouteConfigById(e);return!!(t&&t.type==="url")}defaultRoute(){this.config.defaultRoute&&this.doRoute(this.config.defaultRoute)}removeHash(){history.pushState("",document.title,window.location.pathname+window.location.search)}noRoute(){this.removeHash(),this.routeContainerEl.replaceChildren()}keepHashFromUrl(e){return e?e.replace(/^.*#(.*)/,"$1").replace(/\?.*$/,""):""}routeList(e){return Object.values(this.config.routes).map(t=>e===!0?`#${t.id}`:t.id)}addRoutes(e){Array.isArray(e)||(e=[e]),Promise.all(Object.values(e).filter(t=>t.type==="url").map(this._loadExternal)).then(this._appendExternalTemplates).then(()=>{this.config.routes.push(...e),document.dispatchEvent(new CustomEvent("uibrouter:routes-added",{detail:e})),uibuilder&&uibuilder.set("uibrouter","routes added")})}setCurrentMenuItems(){document.querySelectorAll("li[data-route]").forEach(t=>{t.dataset.route===this.currentRouteId?(t.classList.add("currentRoute"),t.setAttribute("aria-current","page")):(t.classList.remove("currentRoute"),t.removeAttribute("aria-current"))})}routeHeading(){let e=this.currentRoute()||{};return e.heading||e.title||e.description||e.id||"[ROUTE NOT FOUND]"}currentRoute(){return this.getRouteConfigById(this.currentRouteId)}};d=new WeakMap,a(s,"version","1.0.1");var w=s;window.UibRouter?console.warn("`UibRouter` already assigned to window. Have you tried to load it more than once?"):window.UibRouter=s;export{s as UibRouter,w as default};
 //# sourceMappingURL=uibrouter.esm.min.js.map
diff --git a/front-end/utils/uibrouter.esm.min.js.map b/front-end/utils/uibrouter.esm.min.js.map
index 57cb3d4e..89a52992 100644
--- a/front-end/utils/uibrouter.esm.min.js.map
+++ b/front-end/utils/uibrouter.esm.min.js.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
   "sources": ["src/front-end-module/uibrouter.js"],
-  "sourcesContent": ["// @ts-nocheck\n/** A simple, vanilla JavaScript front-end router class\n * Included in node-red-contrib-uibuilder but is not dependent on it.\n * May be used in other contexts as desired.\n * \n * Copyright (c) 2023-2023 Julian Knight (Totally Information)\n * https://it.knightnet.org.uk\n *\n * Licensed under the Apache License, Version 2.0 (the 'License');\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an 'AS IS' BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/** ---------------------------------------------------------------------\n * TODO\n * Methods needed:\n *   Delete route\n *   Update/reload route\n *   shutdown - that removes all elements\n *   delete templates - unloads a list of (or all) templates\n *   reload templates - to facilitate updates of a list of (or all) templates\n * Additional options:\n *   unload templates after they are added to the route container. Only if hide=true. `unload: true`\n *   Maybe: options to auto-load js and css files with the same name as a template file.\n * ---------------------------------------------------------------------  */\n\n/** Type definitions\n * routeConfig\n * @typedef {object} routeDefinition Single route configuration\n * @property {string} id REQUIRED. Route ID\n * @property {string} src REQUIRED. CSS Selector for template tag routes, url for external routes\n * @property {\"url\"|undefined} [type] OPTIONAL. \"url\" for external routes\n * UibRouterConfig\n * @typedef {object} UibRouterConfig Configuration for the UiBRouter class instances\n * @property {routeDefinition[]} routes REQUIRED. Array of route definitions\n * @property {string} [defaultRoute] OPTIONAL. If set to a route id, that route will be automatically shown on load\n * @property {string} [routeContainer] OPTIONAL. CSS Selector for an HTML Element containing routes\n * @property {boolean} [hide] OPTIONAL. If TRUE, routes will be hidden/shown on change instead of removed/added\n * @property {boolean} [unload] OPTIONAL. If TRUE, route templates will be unloaded from DOM after access. Only useful with the `hide` option\n */\n\nclass UibRouter { // eslint-disable-line no-unused-vars\n    //#region --- Variables ---\n    /** Class version */\n    static version = '1.0.1'\n\n    /** Configuration settings @type {UibRouterConfig} */\n    config\n    /** Reference to the container DOM element - set in setup() @type {HTMLDivElement} */\n    routeContainerEl\n    /** The current route id after doRoute() has been called */\n    currentRouteId\n    /** The previous route id after doRoute() has been called */\n    previousRouteId\n\n    /** Internal only. Set to true when the _start() method has been called */\n    #startDone = false\n    //#endregion --- ----- ---\n\n    //#region --- Internal Methods ---\n    /** Class constructor\n     * @param {UibRouterConfig} routerConfig Configuration object\n     */\n    constructor(routerConfig) {\n        // Fetch is on desktop browsers since 2017 at latest. Not so much on mobile (Android!)\n        // May need a polyfill on mobile or old browsers.\n        if (!fetch) throw new Error('[uibrouter:constructor] UibRouter requires `fetch`. Please use a current browser or load a fetch polyfill.')\n\n        if (!routerConfig) throw new Error('[uibrouter:constructor] No config provided')\n        if (!routerConfig.routes) throw new Error('[uibrouter:constructor] No routes provided in routerConfig')\n        // Add a default route container uf needed\n        if (!routerConfig.routeContainer)routerConfig.routeContainer = '#uibroutecontainer'\n\n        // Save the config\n        this.config = routerConfig\n        // Create/access the route container element, sets this.routeContainerEl\n        this._setRouteContainer()\n\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routerConfig.routes).filter(r => r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded so we can start\n                this._start()\n            } )\n    }\n\n    /** Save a reference to, and create if necessary, the HTML element to hold routes */\n    _setRouteContainer() {\n        const body = document.getElementsByTagName('body')[0]\n        // Get reference to route container or create it\n        let routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        if (!routeContainerEl) {\n            // throw new Error(`Route container element with CSS selector '${routerConfig.routeContainer}' not found in HTML`)\n            const tempContainer = document.createElement('div')\n            tempContainer.setAttribute('id', this.config.routeContainer.replace('#', ''))\n            body.append(tempContainer)\n            routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        }\n    }\n\n    /** Load fetched external elements to templates tags under the head tag\n     * @param {HTMLElement[]} loadedElements Array of loaded external elements to add as templates to the head tag\n     */\n    _appendExternalTemplates(loadedElements) {\n        const head = document.getElementsByTagName('head')[0]\n        // Append the loaded content to the main container\n        loadedElements.forEach(element => {\n            if (Array.isArray(element)) {\n                console.error(...element)\n            } else {\n                head.append(element)\n            }\n        })\n    }\n\n    /** Called once all external templates have been loaded */\n    _start() {\n        if (this.#startDone === true) return // Don't run this again\n\n        // Listen for url hash changes and process route change\n        window.addEventListener('hashchange', (event) => this._hashChange(event) )\n        // Go to default route if no route in url and if a default is defined or ensure current route is shown\n        this.doRoute()\n        // Events on fully loaded ...\n        document.dispatchEvent(new CustomEvent('uibrouter:loaded'))\n        if (uibuilder) uibuilder.set('uibrouter', 'loaded') // eslint-disable-line no-undef\n\n        this.#startDone = true // Don't run this again\n    }\n\n    /** Called when the URL Hash changes\n     * @param {HashChangeEvent} event URL Hash change event object\n     */\n    _hashChange(event) {\n        // console.log(`[uibrouter] hashchange: ${this.keepHashFromUrl(event.oldURL)} => ${this.keepHashFromUrl(event.newURL)}` )\n        this.doRoute(event)\n    }\n\n    /** Create DOM route content from a route template (internal or external)\n     * Route templates have to be a `<template>` tag with an ID that matches the route id.\n     * @param {string} routeId ID of the route definition to use to create the content\n     * @returns {boolean} True if the route content was created successfully, false otherwise\n     */\n    _createRouteContent(routeId) {\n        const rContent = document.querySelector(`#${routeId}`)\n        if (!rContent) {\n            console.error(`[uibrouter:createRouteContent] No route template found for route selector '#${routeId}'. Does the link url match a defined route id?`)\n            return false\n        }\n        const docFrag = rContent.content.cloneNode(true)\n        // Have to re-apply the scripts to make them run - only for external templates\n        if (this.isRouteExternal(routeId)) this._applyScripts(docFrag)\n        // Create the route wrapper div with data-route attrib\n        const tempContainer = document.createElement('div')\n        tempContainer.dataset.route = routeId\n        tempContainer.append(docFrag)\n        // And finally try to append to the container\n        try {\n            this.routeContainerEl.append(tempContainer)\n        } catch (e) {\n            console.error(`[uibrouter:createRouteContent] Failed to apply route id '${routeId}'. \\n ${e.message}`)\n            return false\n        }\n        return true\n    }\n\n    /** Loads an external HTML file into a `<template>` tag, adding the router id as the template id.\n     *  or returns an error array\n     * @param {routeDefinition} routeDefinition Configuration for a single route\n     * @returns {Promise<HTMLTemplateElement[]|[string,string,number,string]>} A promise that fulfills to an HTMLTemplateElement or an array containing error information\n     */\n    _loadExternal(routeDefinition) {\n        // const id = singleConfig.src.split('/').pop().replace('.html','')\n        const id = routeDefinition.id\n        // @ts-ignore\n        return fetch(routeDefinition.src)\n            .then(response => {\n                // Fetch failed?\n                if (response.ok === false) return [routeDefinition.id, routeDefinition.src, response.status, response.statusText]\n                return response.text()\n            })\n            .then((/** @type {string} */ htmlText) => {\n                if (Array.isArray(htmlText)) return htmlText // if the fetch failed\n\n                // Check to see if template already exists, if so, remove it\n                try {\n                    const chkTemplate = document.querySelector(`#${id}`)\n                    if (chkTemplate) chkTemplate.remove()\n                } catch (e) {}\n\n                const tempContainer = document.createElement('template')\n                tempContainer.innerHTML = htmlText\n                tempContainer.setAttribute('id', id)\n                return tempContainer\n            })\n            .catch(error => {\n                console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${routeDefinition.src}:`, error)\n            })\n    }\n\n    /** Remove/re-apply scripts in a container Element so that they are executed.\n     * @param {HTMLElement} tempContainer HTML Element of container to process\n     */\n    _applyScripts(tempContainer) {\n        const scripts = tempContainer.querySelectorAll('script')\n        scripts.forEach( scr => {\n            const newScript = document.createElement('script')\n            newScript.textContent = scr.innerText\n            tempContainer.append(newScript)\n            scr.remove() // remove the origin\n        })\n    }\n    //#endregion --- ----- --\n\n    /** Process a routing request\n     * @param {PointerEvent|MouseEvent|HashChangeEvent|TouchEvent|string} routeSource Either string containing route id or DOM Event object either click/touch on element containing `href=\"#routeid\"` or Hash URL change event\n     */\n    doRoute(routeSource) {\n        const container = this.routeContainerEl\n        if (!container) throw new Error('[uibrouter:doRoute] Cannot route, has router.setup() been called yet?')\n\n        // Remove all the url and query param text and any leading # - returns '' if no current hash\n        const currentHash = this.keepHashFromUrl(window.location.hash)\n\n        // If no route source provided, take the current hash (which might be '' and that will trigger the default route if defined)\n        if (!routeSource) routeSource = currentHash\n\n        let newRouteId, oldRouteId\n\n        // Define new and old routes depending on different call types\n        if (typeof routeSource === 'string') { // Manually provided route id\n            // console.log(`[uibrouter:doRoute] manual: ${currentHash} => ${this.keepHashFromUrl(routeSource)}. Current: ${currentHash}` )\n            newRouteId = this.keepHashFromUrl(routeSource)\n            oldRouteId = currentHash\n            // If no hash & config has default, set the default as new\n            if (newRouteId === '' && this.config.defaultRoute) newRouteId = this.config.defaultRoute\n            // If the new route id not the same as the current one in the url hash, just change the current hash & exit\n            if (newRouteId !== currentHash ) {\n                window.location.hash = `#${newRouteId}`\n                return\n            }\n        } else if (routeSource.type === 'hashchange') { // A URL Hash change event\n            // console.log(`[uibrouter:doRoute] hashchange: ${this.keepHashFromUrl(routeSource.oldURL)} => ${this.keepHashFromUrl(routeSource.newURL)}. Current: ${currentHash}` )\n            const newUrl = routeSource.newURL\n            // Check if URL actually contains a #\n            if (newUrl.includes('#')) {\n                oldRouteId = this.keepHashFromUrl(routeSource.oldURL)\n                newRouteId = this.keepHashFromUrl(newUrl) // Only keep anything after the # & ignoring query params\n            } else return\n        } else { // A mouse click/touch event on a dom element with an href attribute\n            oldRouteId = currentHash\n            // Try to get the route name from the URL hash\n            try {\n                newRouteId = this.keepHashFromUrl(routeSource.target.attributes.href.value) // Only keep anything after the # & ignoring query params\n            } catch (e) {\n                throw new Error('[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute')\n            }\n        }\n\n        let routeShown = false\n\n        // If no defined valid route, undo and throw error\n        if (!newRouteId || !this.routeList().includes(newRouteId)) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            throw new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${newRouteId}'`)\n        }\n\n        // Show the new container (replace or show)\n        if (this.config.hide) {\n            // config.hide = true so hide previous contents\n            if (oldRouteId) {\n                /** @type {HTMLElement|null} */\n                const oldContent = document.querySelector(`div[data-route=\"${oldRouteId}\"]`)\n                if (oldContent) oldContent.style.display = 'none'\n            }\n            /** and unhide new route if possible @type {HTMLElement|null} */\n            const content = document.querySelector(`div[data-route=\"${newRouteId}\"]`)\n            if (content) {\n                content.style.removeProperty('display')\n                routeShown = true\n            } else {\n                // else create new content from template\n                routeShown = this._createRouteContent(newRouteId)\n            }\n        } else {\n            // config.hide != true so remove previous contents\n            container.replaceChildren()\n            // Create new content from template\n            routeShown = this._createRouteContent(newRouteId)\n        }\n\n        // console.log({ newRouteId, oldRouteId, currentHash, routeShown })\n\n        // Roll back the route change if the new route cannot be shown\n        if (routeShown === false) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            return\n        }\n\n        // Retain current and previous route id's\n        this.currentRouteId = newRouteId\n        this.previousRouteId = oldRouteId\n\n        // Record the current route on the route container\n        container.dataset.currentRoute = newRouteId\n\n        // Events on route changed ...\n        document.dispatchEvent(new CustomEvent('uibrouter:route-changed', { detail: { newRouteId, oldRouteId } }))\n        if (uibuilder) uibuilder.set('uibrouter', 'route changed') // eslint-disable-line no-undef\n    }\n\n    /** Return a route config given a route id (returns undefined if route not found)\n     * @param {string} routeId Route ID to search for\n     * @returns {routeDefinition|undefined} Route config for found id else undefined\n     */\n    getRouteConfigById(routeId) {\n        return Object.values(this.config.routes).filter(r => r.id === routeId)[0]\n    }\n\n    /** Return true if the given route is external, false otherwise\n     * Used to correctly (re)apply script tags when cloning the template to the DOM (createRouteContent)\n     * @param {string} routeId Route ID to check\n     * @returns {boolean} True if the given route is external, false otherwise\n     */\n    isRouteExternal(routeId) {\n        const routeConfig = this.getRouteConfigById(routeId)\n        return !!(routeConfig && routeConfig.type === 'url')\n    }\n\n    /** Go to the default route if it has been specified */\n    defaultRoute() {\n        if (this.config.defaultRoute) this.doRoute(this.config.defaultRoute)\n    }\n\n    removeHash() {\n        history.pushState('', document.title, window.location.pathname + window.location.search)\n    }\n\n    /** Empty the current container and remove url hash - does not trigger a route change */\n    noRoute() {\n        this.removeHash()\n        this.routeContainerEl.replaceChildren()\n    }\n\n    /** Only keep anything after the # & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Return an array of route ids (to facilitate creation of menus)\n     * @param {boolean} returnHash If true, returns id's with leading `#` to apply to href attributes else returns the id\n     * @returns {string[]} Array of route id's or route url hashes\n     */\n    routeList(returnHash) {\n        return Object.values(this.config.routes).map((r) => returnHash === true ? `#${r.id}` : r.id)\n    }\n\n    /** Add new route definitions to the existing ones\n     * @param {routeDefinition|routeDefinition[]} routeConfig Single or array of route definitions to add\n     */\n    addRoutes(routeConfig) {\n        if (!Array.isArray(routeConfig)) routeConfig = [routeConfig]\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routeConfig).filter(r => r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded - Add new routes to config\n                this.config.routes.push(...routeConfig)\n                // Let everyone know it all finished\n                document.dispatchEvent(new CustomEvent('uibrouter:routes-added', { detail: routeConfig }))\n                if (uibuilder) uibuilder.set('uibrouter', 'routes added') // eslint-disable-line no-undef, promise/always-return\n            } )\n    }\n\n    // TODO\n    // deleteRoutes(aRoutes) {\n    //     // Delete all if no list provided\n    //     if (!aRoutes) aRoutes = this.config.routes\n    //     if (!Array.isArray(aRoutes)) aRoutes = [aRoutes]\n    //     console.log('to be deleted', this.config.routes.filter(r => aRoutes.includes(r.id)))\n    //     console.log('to be retained', this.config.routes.filter(r => !aRoutes.includes(r.id)))\n\n    //     // TODO actually remove the unwanted route templates\n    //     // TODO remove from the config: this.config.routes = this.config.routes.filter(r => !aRoutes.includes(r.id))\n\n    //     // ? Optional future upgrade - attempt to also remove any links to this route?\n    // }\n\n    // TODO\n    // deleteTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO delete\n    //     } )\n    // }\n\n    // TODO\n    // reloadTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO reload\n    //     } )\n    // }\n} // ---- End of class ----\n\n// For use in ESM loads\nexport { UibRouter }\nexport default UibRouter\n\n// Auto-assign for when the library is loaded via a script tag\nif (!window['UibRouter']) {\n    window['UibRouter'] = UibRouter\n} else {\n    console.warn('`UibRouter` already assigned to window. Have you tried to load it more than once?')\n}\n"],
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-  "names": ["_startDone", "UibRouter", "routerConfig", "__publicField", "__privateAdd", "r", "body", "routeContainerEl", "tempContainer", "loadedElements", "head", "element", "__privateGet", "event", "__privateSet", "routeId", "rContent", "docFrag", "e", "routeDefinition", "id", "response", "htmlText", "chkTemplate", "error", "scr", "newScript", "routeSource", "container", "currentHash", "newRouteId", "oldRouteId", "newUrl", "routeShown", "oldContent", "content", "routeConfig", "url", "returnHash", "uibrouter_default", "UibRouter"]
+  "sourcesContent": ["/* eslint-disable no-undef */\n// @ts-nocheck\n/** A simple, vanilla JavaScript front-end router class\n * Included in node-red-contrib-uibuilder but is not dependent on it.\n * May be used in other contexts as desired.\n * \n * Copyright (c) 2023-2023 Julian Knight (Totally Information)\n * https://it.knightnet.org.uk\n *\n * Licensed under the Apache License, Version 2.0 (the 'License');\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an 'AS IS' BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/** ---------------------------------------------------------------------\n * TODO\n * Methods needed:\n *   Delete route\n *   Update/reload route\n *   shutdown - that removes all elements\n *   delete templates - unloads a list of (or all) templates\n *   reload templates - to facilitate updates of a list of (or all) templates\n * Additional options:\n *   unload templates after they are added to the route container. Only if hide=true. `unload: true`\n *   Maybe: options to auto-load js and css files with the same name as a template file.\n * ---------------------------------------------------------------------  */\n\n/** Type definitions\n * routeConfig\n * @typedef {object} routeDefinition Single route configuration\n * @property {string} id REQUIRED. Route ID\n * @property {string} src REQUIRED. CSS Selector for template tag routes, url for external routes\n * @property {\"url\"|undefined} [type] OPTIONAL. \"url\" for external routes\n * UibRouterConfig\n * @typedef {object} UibRouterConfig Configuration for the UiBRouter class instances\n * @property {routeDefinition[]} routes REQUIRED. Array of route definitions\n * @property {string} [defaultRoute] OPTIONAL. If set to a route id, that route will be automatically shown on load\n * @property {string} [routeContainer] OPTIONAL. CSS Selector for an HTML Element containing routes\n * @property {boolean} [hide] OPTIONAL. If TRUE, routes will be hidden/shown on change instead of removed/added\n * @property {boolean} [unload] OPTIONAL. If TRUE, route templates will be unloaded from DOM after access. Only useful with the `hide` option\n */\n\nclass UibRouter { // eslint-disable-line no-unused-vars\n    //#region --- Variables ---\n    /** Class version */\n    static version = '1.0.1'\n\n    /** Configuration settings @type {UibRouterConfig} */\n    config\n    /** Reference to the container DOM element - set in setup() @type {HTMLDivElement} */\n    routeContainerEl\n    /** The current route id after doRoute() has been called */\n    currentRouteId\n    /** The previous route id after doRoute() has been called */\n    previousRouteId\n\n    /** Internal only. Set to true when the _start() method has been called */\n    #startDone = false\n    //#endregion --- ----- ---\n\n    //#region --- Internal Methods ---\n    /** Class constructor\n     * @param {UibRouterConfig} routerConfig Configuration object\n     */\n    constructor(routerConfig) {\n        // Fetch is on desktop browsers since 2017 at latest. Not so much on mobile (Android!)\n        // May need a polyfill on mobile or old browsers.\n        if (!fetch) throw new Error('[uibrouter:constructor] UibRouter requires `fetch`. Please use a current browser or load a fetch polyfill.')\n\n        if (!routerConfig) throw new Error('[uibrouter:constructor] No config provided')\n        if (!routerConfig.routes) throw new Error('[uibrouter:constructor] No routes provided in routerConfig')\n        // Add a default route container uf needed\n        if (!routerConfig.routeContainer)routerConfig.routeContainer = '#uibroutecontainer'\n\n        // Save the config\n        this.config = routerConfig\n        // Create/access the route container element, sets this.routeContainerEl\n        this._setRouteContainer()\n\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routerConfig.routes).filter(r => r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded so we can start\n                this._start()\n            } )\n    }\n\n    /** Save a reference to, and create if necessary, the HTML element to hold routes */\n    _setRouteContainer() {\n        const body = document.getElementsByTagName('body')[0]\n        // Get reference to route container or create it\n        let routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        if (!routeContainerEl) {\n            // throw new Error(`Route container element with CSS selector '${routerConfig.routeContainer}' not found in HTML`)\n            const tempContainer = document.createElement('div')\n            tempContainer.setAttribute('id', this.config.routeContainer.replace('#', ''))\n            body.append(tempContainer)\n            routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        }\n    }\n\n    /** Load fetched external elements to templates tags under the head tag\n     * @param {HTMLElement[]} loadedElements Array of loaded external elements to add as templates to the head tag\n     */\n    _appendExternalTemplates(loadedElements) {\n        const head = document.getElementsByTagName('head')[0]\n        // Append the loaded content to the main container\n        loadedElements.forEach(element => {\n            if (Array.isArray(element)) {\n                console.error(...element)\n            } else {\n                head.append(element)\n            }\n        })\n    }\n\n    /** Called once all external templates have been loaded */\n    _start() {\n        if (this.#startDone === true) return // Don't run this again\n\n        // Listen for url hash changes and process route change\n        window.addEventListener('hashchange', (event) => this._hashChange(event) )\n        // Go to default route if no route in url and if a default is defined or ensure current route is shown\n        this.doRoute()\n        // Events on fully loaded ...\n        document.dispatchEvent(new CustomEvent('uibrouter:loaded'))\n        if (uibuilder) uibuilder.set('uibrouter', 'loaded') // eslint-disable-line no-undef\n\n        this.#startDone = true // Don't run this again\n    }\n\n    /** Called when the URL Hash changes\n     * @param {HashChangeEvent} event URL Hash change event object\n     */\n    _hashChange(event) {\n        // console.log(`[uibrouter] hashchange: ${this.keepHashFromUrl(event.oldURL)} => ${this.keepHashFromUrl(event.newURL)}` )\n        this.doRoute(event)\n    }\n\n    /** Create DOM route content from a route template (internal or external)\n     * Route templates have to be a `<template>` tag with an ID that matches the route id.\n     * @param {string} routeId ID of the route definition to use to create the content\n     * @returns {boolean} True if the route content was created successfully, false otherwise\n     */\n    _createRouteContent(routeId) {\n        const rContent = document.querySelector(`#${routeId}`)\n        if (!rContent) {\n            console.error(`[uibrouter:createRouteContent] No route template found for route selector '#${routeId}'. Does the link url match a defined route id?`)\n            return false\n        }\n        const docFrag = rContent.content.cloneNode(true)\n        // Have to re-apply the scripts to make them run - only for external templates\n        if (this.isRouteExternal(routeId)) this._applyScripts(docFrag)\n        // Create the route wrapper div with data-route attrib\n        const tempContainer = document.createElement('div')\n        tempContainer.dataset.route = routeId\n        tempContainer.append(docFrag)\n        // And finally try to append to the container\n        try {\n            this.routeContainerEl.append(tempContainer)\n        } catch (e) {\n            console.error(`[uibrouter:createRouteContent] Failed to apply route id '${routeId}'. \\n ${e.message}`)\n            return false\n        }\n        return true\n    }\n\n    /** Loads an external HTML file into a `<template>` tag, adding the router id as the template id.\n     *  or returns an error array\n     * @param {routeDefinition} routeDefinition Configuration for a single route\n     * @returns {Promise<HTMLTemplateElement[]|[string,string,number,string]>} A promise that fulfills to an HTMLTemplateElement or an array containing error information\n     */\n    _loadExternal(routeDefinition) {\n        // const id = singleConfig.src.split('/').pop().replace('.html','')\n        const id = routeDefinition.id\n        // @ts-ignore\n        return fetch(routeDefinition.src)\n            .then(response => {\n                // Fetch failed?\n                if (response.ok === false) return [routeDefinition.id, routeDefinition.src, response.status, response.statusText]\n                return response.text()\n            })\n            .then((/** @type {string} */ htmlText) => {\n                if (Array.isArray(htmlText)) return htmlText // if the fetch failed\n\n                // Check to see if template already exists, if so, remove it\n                try {\n                    const chkTemplate = document.querySelector(`#${id}`)\n                    if (chkTemplate) chkTemplate.remove()\n                } catch (e) {}\n\n                const tempContainer = document.createElement('template')\n                tempContainer.innerHTML = htmlText\n                tempContainer.setAttribute('id', id)\n                return tempContainer\n            })\n            .catch(error => {\n                console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${routeDefinition.src}:`, error)\n            })\n    }\n\n    /** Remove/re-apply scripts in a container Element so that they are executed.\n     * @param {HTMLElement} tempContainer HTML Element of container to process\n     */\n    _applyScripts(tempContainer) {\n        const scripts = tempContainer.querySelectorAll('script')\n        scripts.forEach( scr => {\n            const newScript = document.createElement('script')\n            newScript.textContent = scr.innerText\n            tempContainer.append(newScript)\n            scr.remove() // remove the origin\n        })\n    }\n    //#endregion --- ----- --\n\n    /** Process a routing request\n     * @param {PointerEvent|MouseEvent|HashChangeEvent|TouchEvent|string} routeSource Either string containing route id or DOM Event object either click/touch on element containing `href=\"#routeid\"` or Hash URL change event\n     */\n    doRoute(routeSource) {\n        const container = this.routeContainerEl\n        if (!container) throw new Error('[uibrouter:doRoute] Cannot route, has router.setup() been called yet?')\n\n        // Remove all the url and query param text and any leading # - returns '' if no current hash\n        const currentHash = this.keepHashFromUrl(window.location.hash)\n\n        // If no route source provided, take the current hash (which might be '' and that will trigger the default route if defined)\n        if (!routeSource) routeSource = currentHash\n\n        let newRouteId, oldRouteId\n\n        // Define new and old routes depending on different call types\n        if (typeof routeSource === 'string') { // Manually provided route id\n            // console.log(`[uibrouter:doRoute] manual: ${currentHash} => ${this.keepHashFromUrl(routeSource)}. Current: ${currentHash}` )\n            newRouteId = this.keepHashFromUrl(routeSource)\n            oldRouteId = currentHash\n            // If no hash & config has default, set the default as new\n            if (newRouteId === '' && this.config.defaultRoute) newRouteId = this.config.defaultRoute\n            // If the new route id not the same as the current one in the url hash, just change the current hash & exit\n            if (newRouteId !== currentHash ) {\n                window.location.hash = `#${newRouteId}`\n                return\n            }\n        } else if (routeSource.type === 'hashchange') { // A URL Hash change event\n            // console.log(`[uibrouter:doRoute] hashchange: ${this.keepHashFromUrl(routeSource.oldURL)} => ${this.keepHashFromUrl(routeSource.newURL)}. Current: ${currentHash}` )\n            const newUrl = routeSource.newURL\n            // Check if URL actually contains a #\n            if (newUrl.includes('#')) {\n                oldRouteId = this.keepHashFromUrl(routeSource.oldURL)\n                newRouteId = this.keepHashFromUrl(newUrl) // Only keep anything after the # & ignoring query params\n            } else return\n        } else { // A mouse click/touch event on a dom element with an href attribute\n            oldRouteId = currentHash\n            // Try to get the route name from the URL hash\n            try {\n                newRouteId = this.keepHashFromUrl(routeSource.target.attributes.href.value) // Only keep anything after the # & ignoring query params\n            } catch (e) {\n                throw new Error('[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute')\n            }\n        }\n\n        let routeShown = false\n\n        // If no defined valid route, undo and throw error\n        if (!newRouteId || !this.routeList().includes(newRouteId)) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            throw new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${newRouteId}'`)\n        }\n\n        // Show the new container (replace or show)\n        if (this.config.hide) {\n            // config.hide = true so hide previous contents\n            if (oldRouteId) {\n                /** @type {HTMLElement|null} */\n                const oldContent = document.querySelector(`div[data-route=\"${oldRouteId}\"]`)\n                if (oldContent) oldContent.style.display = 'none'\n            }\n            /** and unhide new route if possible @type {HTMLElement|null} */\n            const content = document.querySelector(`div[data-route=\"${newRouteId}\"]`)\n            if (content) {\n                content.style.removeProperty('display')\n                routeShown = true\n            } else {\n                // else create new content from template\n                routeShown = this._createRouteContent(newRouteId)\n            }\n        } else {\n            // config.hide != true so remove previous contents\n            container.replaceChildren()\n            // Create new content from template\n            routeShown = this._createRouteContent(newRouteId)\n        }\n\n        // console.log({ newRouteId, oldRouteId, currentHash, routeShown })\n\n        // Roll back the route change if the new route cannot be shown\n        if (routeShown === false) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            return\n        }\n\n        // Retain current and previous route id's\n        this.currentRouteId = newRouteId\n        this.previousRouteId = oldRouteId\n\n        // Record the current route on the route container\n        container.dataset.currentRoute = newRouteId\n\n        // Update any existing HTML menu items\n        this.setCurrentMenuItems()\n\n        // Events on route changed ...\n        document.dispatchEvent(new CustomEvent('uibrouter:route-changed', { detail: { newRouteId, oldRouteId } }))\n        if (uibuilder) {\n            uibuilder.set('uibrouter', 'route changed')\n            uibuilder.set('uibrouter_CurrentRoute', newRouteId)\n            uibuilder.set('uibrouter_CurrentHeading', this.routeHeading())\n            uibuilder.set('uibrouter_CurrentDetails', this.getRouteConfigById(newRouteId))\n        }\n    }\n\n    /** Return a route config given a route id (returns undefined if route not found)\n     * @param {string} routeId Route ID to search for\n     * @returns {routeDefinition|undefined} Route config for found id else undefined\n     */\n    getRouteConfigById(routeId) {\n        return Object.values(this.config.routes).filter(r => r.id === routeId)[0]\n    }\n\n    /** Return true if the given route is external, false otherwise\n     * Used to correctly (re)apply script tags when cloning the template to the DOM (createRouteContent)\n     * @param {string} routeId Route ID to check\n     * @returns {boolean} True if the given route is external, false otherwise\n     */\n    isRouteExternal(routeId) {\n        const routeConfig = this.getRouteConfigById(routeId)\n        return !!(routeConfig && routeConfig.type === 'url')\n    }\n\n    /** Go to the default route if it has been specified */\n    defaultRoute() {\n        if (this.config.defaultRoute) this.doRoute(this.config.defaultRoute)\n    }\n\n    removeHash() {\n        history.pushState('', document.title, window.location.pathname + window.location.search)\n    }\n\n    /** Empty the current container and remove url hash - does not trigger a route change */\n    noRoute() {\n        this.removeHash()\n        this.routeContainerEl.replaceChildren()\n    }\n\n    /** Only keep anything after the # & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Return an array of route ids (to facilitate creation of menus)\n     * @param {boolean} returnHash If true, returns id's with leading `#` to apply to href attributes else returns the id\n     * @returns {string[]} Array of route id's or route url hashes\n     */\n    routeList(returnHash) {\n        return Object.values(this.config.routes).map((r) => returnHash === true ? `#${r.id}` : r.id)\n    }\n\n    /** Add new route definitions to the existing ones\n     * @param {routeDefinition|routeDefinition[]} routeConfig Single or array of route definitions to add\n     */\n    addRoutes(routeConfig) {\n        if (!Array.isArray(routeConfig)) routeConfig = [routeConfig]\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routeConfig).filter(r => r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded - Add new routes to config\n                this.config.routes.push(...routeConfig)\n                // Let everyone know it all finished\n                document.dispatchEvent(new CustomEvent('uibrouter:routes-added', { detail: routeConfig }))\n                if (uibuilder) uibuilder.set('uibrouter', 'routes added') // eslint-disable-line no-undef, promise/always-return\n            } )\n    }\n\n    //#region --- utils for page display & processing ---\n    setCurrentMenuItems() {\n        // const items = document.querySelectorAll(`li[data-route=\"${this.currentRouteId}\"]`)\n        const items = document.querySelectorAll('li[data-route]')\n        items.forEach( item => {\n            if (item.dataset.route === this.currentRouteId) {\n                item.classList.add('currentRoute')\n                item.setAttribute('aria-current', 'page')\n            } else {\n                item.classList.remove('currentRoute')\n                item.removeAttribute('aria-current')\n            }\n        })\n    }\n\n    routeHeading() {\n        const thisRoute = this.currentRoute() || {}\n        return thisRoute.heading || thisRoute.title || thisRoute.description || thisRoute.id || '[ROUTE NOT FOUND]'\n    }\n\n    currentRoute() {\n        return this.getRouteConfigById(this.currentRouteId)\n    }\n    //#endregion ---- ----- ----\n\n    // TODO\n    // deleteRoutes(aRoutes) {\n    //     // Delete all if no list provided\n    //     if (!aRoutes) aRoutes = this.config.routes\n    //     if (!Array.isArray(aRoutes)) aRoutes = [aRoutes]\n    //     console.log('to be deleted', this.config.routes.filter(r => aRoutes.includes(r.id)))\n    //     console.log('to be retained', this.config.routes.filter(r => !aRoutes.includes(r.id)))\n\n    //     // TODO actually remove the unwanted route templates\n    //     // TODO remove from the config: this.config.routes = this.config.routes.filter(r => !aRoutes.includes(r.id))\n\n    //     // ? Optional future upgrade - attempt to also remove any links to this route?\n    // }\n\n    // TODO\n    // deleteTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO delete\n    //     } )\n    // }\n\n    // TODO\n    // reloadTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO reload\n    //     } )\n    // }\n} // ---- End of class ----\n\n// For use in ESM loads\nexport { UibRouter }\nexport default UibRouter\n\n// Auto-assign for when the library is loaded via a script tag\nif (!window['UibRouter']) {\n    window['UibRouter'] = UibRouter\n} else {\n    console.warn('`UibRouter` already assigned to window. Have you tried to load it more than once?')\n}\n"],
+  "mappings": 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+  "names": ["_startDone", "UibRouter", "routerConfig", "__publicField", "__privateAdd", "r", "body", "routeContainerEl", "tempContainer", "loadedElements", "head", "element", "__privateGet", "event", "__privateSet", "routeId", "rContent", "docFrag", "e", "routeDefinition", "id", "response", "htmlText", "chkTemplate", "error", "scr", "newScript", "routeSource", "container", "currentHash", "newRouteId", "oldRouteId", "newUrl", "routeShown", "oldContent", "content", "routeConfig", "url", "returnHash", "item", "thisRoute", "uibrouter_default", "UibRouter"]
 }
diff --git a/front-end/utils/uibrouter.iife.js b/front-end/utils/uibrouter.iife.js
index 00c304b8..ccd3b4d5 100644
--- a/front-end/utils/uibrouter.iife.js
+++ b/front-end/utils/uibrouter.iife.js
@@ -235,9 +235,14 @@
       this.currentRouteId = newRouteId;
       this.previousRouteId = oldRouteId;
       container.dataset.currentRoute = newRouteId;
+      this.setCurrentMenuItems();
       document.dispatchEvent(new CustomEvent("uibrouter:route-changed", { detail: { newRouteId, oldRouteId } }));
-      if (uibuilder)
+      if (uibuilder) {
         uibuilder.set("uibrouter", "route changed");
+        uibuilder.set("uibrouter_CurrentRoute", newRouteId);
+        uibuilder.set("uibrouter_CurrentHeading", this.routeHeading());
+        uibuilder.set("uibrouter_CurrentDetails", this.getRouteConfigById(newRouteId));
+      }
     }
     /** Return a route config given a route id (returns undefined if route not found)
      * @param {string} routeId Route ID to search for
@@ -297,6 +302,27 @@
           uibuilder.set("uibrouter", "routes added");
       });
     }
+    //#region --- utils for page display & processing ---
+    setCurrentMenuItems() {
+      const items = document.querySelectorAll("li[data-route]");
+      items.forEach((item) => {
+        if (item.dataset.route === this.currentRouteId) {
+          item.classList.add("currentRoute");
+          item.setAttribute("aria-current", "page");
+        } else {
+          item.classList.remove("currentRoute");
+          item.removeAttribute("aria-current");
+        }
+      });
+    }
+    routeHeading() {
+      const thisRoute = this.currentRoute() || {};
+      return thisRoute.heading || thisRoute.title || thisRoute.description || thisRoute.id || "[ROUTE NOT FOUND]";
+    }
+    currentRoute() {
+      return this.getRouteConfigById(this.currentRouteId);
+    }
+    //#endregion ---- ----- ----
     // TODO
     // deleteRoutes(aRoutes) {
     //     // Delete all if no list provided
diff --git a/front-end/utils/uibrouter.iife.min.js b/front-end/utils/uibrouter.iife.min.js
index 15829674..22919c56 100644
--- a/front-end/utils/uibrouter.iife.min.js
+++ b/front-end/utils/uibrouter.iife.min.js
@@ -1,3 +1,3 @@
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- ${i.message}`),!1}return!0}_loadExternal(e){let t=e.id;return fetch(e.src).then(r=>r.ok===!1?[e.id,e.src,r.status,r.statusText]:r.text()).then(r=>{if(Array.isArray(r))return r;try{let i=document.querySelector(`#${t}`);i&&i.remove()}catch{}let o=document.createElement("template");return o.innerHTML=r,o.setAttribute("id",t),o}).catch(r=>{console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${e.src}:`,r)})}_applyScripts(e){e.querySelectorAll("script").forEach(r=>{let o=document.createElement("script");o.textContent=r.innerText,e.append(o),r.remove()})}doRoute(e){let t=this.routeContainerEl;if(!t)throw new Error("[uibrouter:doRoute] Cannot route, has router.setup() been called yet?");let r=this.keepHashFromUrl(window.location.hash);e||(e=r);let o,i;if(typeof e=="string"){if(o=this.keepHashFromUrl(e),i=r,o===""&&this.config.defaultRoute&&(o=this.config.defaultRoute),o!==r){window.location.hash=`#${o}`;return}}else if(e.type==="hashchange"){let a=e.newURL;if(a.includes("#"))i=this.keepHashFromUrl(e.oldURL),o=this.keepHashFromUrl(a);else return}else{i=r;try{o=this.keepHashFromUrl(e.target.attributes.href.value)}catch{throw new Error("[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute")}}let l=!1;if(!o||!this.routeList().includes(o))throw document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:i}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=i?`#${i}`:"",new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${o}'`);if(this.config.hide){if(i){let c=document.querySelector(`div[data-route="${i}"]`);c&&(c.style.display="none")}let a=document.querySelector(`div[data-route="${o}"]`);a?(a.style.removeProperty("display"),l=!0):l=this._createRouteContent(o)}else t.replaceChildren(),l=this._createRouteContent(o);if(l===!1){document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:i}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=i?`#${i}`:"";return}this.currentRouteId=o,this.previousRouteId=i,t.dataset.currentRoute=o,document.dispatchEvent(new CustomEvent("uibrouter:route-changed",{detail:{newRouteId:o,oldRouteId:i}})),uibuilder&&uibuilder.set("uibrouter","route changed")}getRouteConfigById(e){return Object.values(this.config.routes).filter(t=>t.id===e)[0]}isRouteExternal(e){let t=this.getRouteConfigById(e);return!!(t&&t.type==="url")}defaultRoute(){this.config.defaultRoute&&this.doRoute(this.config.defaultRoute)}removeHash(){history.pushState("",document.title,window.location.pathname+window.location.search)}noRoute(){this.removeHash(),this.routeContainerEl.replaceChildren()}keepHashFromUrl(e){return e?e.replace(/^.*#(.*)/,"$1").replace(/\?.*$/,""):""}routeList(e){return Object.values(this.config.routes).map(t=>e===!0?`#${t.id}`:t.id)}addRoutes(e){Array.isArray(e)||(e=[e]),Promise.all(Object.values(e).filter(t=>t.type==="url").map(this._loadExternal)).then(this._appendExternalTemplates).then(()=>{this.config.routes.push(...e),document.dispatchEvent(new CustomEvent("uibrouter:routes-added",{detail:e})),uibuilder&&uibuilder.set("uibrouter","routes added")})}};d=new WeakMap,u(s,"version","1.0.1");var y=s;window.UibRouter?console.warn("`UibRouter` already assigned to window. Have you tried to load it more than once?"):window.UibRouter=s;})();
+(()=>{var b=Object.defineProperty;var R=(i,e,t)=>e in i?b(i,e,{enumerable:!0,configurable:!0,writable:!0,value:t}):i[e]=t;var a=(i,e,t)=>(R(i,typeof e!="symbol"?e+"":e,t),t),h=(i,e,t)=>{if(!e.has(i))throw TypeError("Cannot "+t)};var f=(i,e,t)=>(h(i,e,"read from private field"),t?t.call(i):e.get(i)),p=(i,e,t)=>{if(e.has(i))throw TypeError("Cannot add the same private member more than once");e instanceof WeakSet?e.add(i):e.set(i,t)},m=(i,e,t,r)=>(h(i,e,"write to private field"),r?r.call(i,t):e.set(i,t),t);var d,s=class{constructor(e){a(this,"config");a(this,"routeContainerEl");a(this,"currentRouteId");a(this,"previousRouteId");p(this,d,!1);if(!fetch)throw new Error("[uibrouter:constructor] UibRouter requires `fetch`. Please use a current browser or load a fetch polyfill.");if(!e)throw new Error("[uibrouter:constructor] No config provided");if(!e.routes)throw new Error("[uibrouter:constructor] No routes provided in routerConfig");e.routeContainer||(e.routeContainer="#uibroutecontainer"),this.config=e,this._setRouteContainer(),Promise.all(Object.values(e.routes).filter(t=>t.type==="url").map(this._loadExternal)).then(this._appendExternalTemplates).then(()=>{this._start()})}_setRouteContainer(){let e=document.getElementsByTagName("body")[0],t=this.routeContainerEl=document.querySelector(this.config.routeContainer);if(!t){let r=document.createElement("div");r.setAttribute("id",this.config.routeContainer.replace("#","")),e.append(r),t=this.routeContainerEl=document.querySelector(this.config.routeContainer)}}_appendExternalTemplates(e){let t=document.getElementsByTagName("head")[0];e.forEach(r=>{Array.isArray(r)?console.error(...r):t.append(r)})}_start(){f(this,d)!==!0&&(window.addEventListener("hashchange",e=>this._hashChange(e)),this.doRoute(),document.dispatchEvent(new CustomEvent("uibrouter:loaded")),uibuilder&&uibuilder.set("uibrouter","loaded"),m(this,d,!0))}_hashChange(e){this.doRoute(e)}_createRouteContent(e){let t=document.querySelector(`#${e}`);if(!t)return console.error(`[uibrouter:createRouteContent] No route template found for route selector '#${e}'. Does the link url match a defined route id?`),!1;let r=t.content.cloneNode(!0);this.isRouteExternal(e)&&this._applyScripts(r);let o=document.createElement("div");o.dataset.route=e,o.append(r);try{this.routeContainerEl.append(o)}catch(n){return console.error(`[uibrouter:createRouteContent] Failed to apply route id '${e}'. 
+ ${n.message}`),!1}return!0}_loadExternal(e){let t=e.id;return fetch(e.src).then(r=>r.ok===!1?[e.id,e.src,r.status,r.statusText]:r.text()).then(r=>{if(Array.isArray(r))return r;try{let n=document.querySelector(`#${t}`);n&&n.remove()}catch{}let o=document.createElement("template");return o.innerHTML=r,o.setAttribute("id",t),o}).catch(r=>{console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${e.src}:`,r)})}_applyScripts(e){e.querySelectorAll("script").forEach(r=>{let o=document.createElement("script");o.textContent=r.innerText,e.append(o),r.remove()})}doRoute(e){let t=this.routeContainerEl;if(!t)throw new Error("[uibrouter:doRoute] Cannot route, has router.setup() been called yet?");let r=this.keepHashFromUrl(window.location.hash);e||(e=r);let o,n;if(typeof e=="string"){if(o=this.keepHashFromUrl(e),n=r,o===""&&this.config.defaultRoute&&(o=this.config.defaultRoute),o!==r){window.location.hash=`#${o}`;return}}else if(e.type==="hashchange"){let u=e.newURL;if(u.includes("#"))n=this.keepHashFromUrl(e.oldURL),o=this.keepHashFromUrl(u);else return}else{n=r;try{o=this.keepHashFromUrl(e.target.attributes.href.value)}catch{throw new Error("[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute")}}let l=!1;if(!o||!this.routeList().includes(o))throw document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:n}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=n?`#${n}`:"",new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${o}'`);if(this.config.hide){if(n){let c=document.querySelector(`div[data-route="${n}"]`);c&&(c.style.display="none")}let u=document.querySelector(`div[data-route="${o}"]`);u?(u.style.removeProperty("display"),l=!0):l=this._createRouteContent(o)}else t.replaceChildren(),l=this._createRouteContent(o);if(l===!1){document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:n}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=n?`#${n}`:"";return}this.currentRouteId=o,this.previousRouteId=n,t.dataset.currentRoute=o,this.setCurrentMenuItems(),document.dispatchEvent(new CustomEvent("uibrouter:route-changed",{detail:{newRouteId:o,oldRouteId:n}})),uibuilder&&(uibuilder.set("uibrouter","route changed"),uibuilder.set("uibrouter_CurrentRoute",o),uibuilder.set("uibrouter_CurrentHeading",this.routeHeading()),uibuilder.set("uibrouter_CurrentDetails",this.getRouteConfigById(o)))}getRouteConfigById(e){return Object.values(this.config.routes).filter(t=>t.id===e)[0]}isRouteExternal(e){let t=this.getRouteConfigById(e);return!!(t&&t.type==="url")}defaultRoute(){this.config.defaultRoute&&this.doRoute(this.config.defaultRoute)}removeHash(){history.pushState("",document.title,window.location.pathname+window.location.search)}noRoute(){this.removeHash(),this.routeContainerEl.replaceChildren()}keepHashFromUrl(e){return e?e.replace(/^.*#(.*)/,"$1").replace(/\?.*$/,""):""}routeList(e){return Object.values(this.config.routes).map(t=>e===!0?`#${t.id}`:t.id)}addRoutes(e){Array.isArray(e)||(e=[e]),Promise.all(Object.values(e).filter(t=>t.type==="url").map(this._loadExternal)).then(this._appendExternalTemplates).then(()=>{this.config.routes.push(...e),document.dispatchEvent(new CustomEvent("uibrouter:routes-added",{detail:e})),uibuilder&&uibuilder.set("uibrouter","routes added")})}setCurrentMenuItems(){document.querySelectorAll("li[data-route]").forEach(t=>{t.dataset.route===this.currentRouteId?(t.classList.add("currentRoute"),t.setAttribute("aria-current","page")):(t.classList.remove("currentRoute"),t.removeAttribute("aria-current"))})}routeHeading(){let e=this.currentRoute()||{};return e.heading||e.title||e.description||e.id||"[ROUTE NOT FOUND]"}currentRoute(){return this.getRouteConfigById(this.currentRouteId)}};d=new WeakMap,a(s,"version","1.0.1");var w=s;window.UibRouter?console.warn("`UibRouter` already assigned to window. Have you tried to load it more than once?"):window.UibRouter=s;})();
 //# sourceMappingURL=uibrouter.iife.min.js.map
diff --git a/front-end/utils/uibrouter.iife.min.js.map b/front-end/utils/uibrouter.iife.min.js.map
index 8314a8de..8eb4d238 100644
--- a/front-end/utils/uibrouter.iife.min.js.map
+++ b/front-end/utils/uibrouter.iife.min.js.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
   "sources": ["src/front-end-module/uibrouter.js"],
-  "sourcesContent": ["// @ts-nocheck\n/** A simple, vanilla JavaScript front-end router class\n * Included in node-red-contrib-uibuilder but is not dependent on it.\n * May be used in other contexts as desired.\n * \n * Copyright (c) 2023-2023 Julian Knight (Totally Information)\n * https://it.knightnet.org.uk\n *\n * Licensed under the Apache License, Version 2.0 (the 'License');\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an 'AS IS' BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/** ---------------------------------------------------------------------\n * TODO\n * Methods needed:\n *   Delete route\n *   Update/reload route\n *   shutdown - that removes all elements\n *   delete templates - unloads a list of (or all) templates\n *   reload templates - to facilitate updates of a list of (or all) templates\n * Additional options:\n *   unload templates after they are added to the route container. Only if hide=true. `unload: true`\n *   Maybe: options to auto-load js and css files with the same name as a template file.\n * ---------------------------------------------------------------------  */\n\n/** Type definitions\n * routeConfig\n * @typedef {object} routeDefinition Single route configuration\n * @property {string} id REQUIRED. Route ID\n * @property {string} src REQUIRED. CSS Selector for template tag routes, url for external routes\n * @property {\"url\"|undefined} [type] OPTIONAL. \"url\" for external routes\n * UibRouterConfig\n * @typedef {object} UibRouterConfig Configuration for the UiBRouter class instances\n * @property {routeDefinition[]} routes REQUIRED. Array of route definitions\n * @property {string} [defaultRoute] OPTIONAL. If set to a route id, that route will be automatically shown on load\n * @property {string} [routeContainer] OPTIONAL. CSS Selector for an HTML Element containing routes\n * @property {boolean} [hide] OPTIONAL. If TRUE, routes will be hidden/shown on change instead of removed/added\n * @property {boolean} [unload] OPTIONAL. If TRUE, route templates will be unloaded from DOM after access. Only useful with the `hide` option\n */\n\nclass UibRouter { // eslint-disable-line no-unused-vars\n    //#region --- Variables ---\n    /** Class version */\n    static version = '1.0.1'\n\n    /** Configuration settings @type {UibRouterConfig} */\n    config\n    /** Reference to the container DOM element - set in setup() @type {HTMLDivElement} */\n    routeContainerEl\n    /** The current route id after doRoute() has been called */\n    currentRouteId\n    /** The previous route id after doRoute() has been called */\n    previousRouteId\n\n    /** Internal only. Set to true when the _start() method has been called */\n    #startDone = false\n    //#endregion --- ----- ---\n\n    //#region --- Internal Methods ---\n    /** Class constructor\n     * @param {UibRouterConfig} routerConfig Configuration object\n     */\n    constructor(routerConfig) {\n        // Fetch is on desktop browsers since 2017 at latest. Not so much on mobile (Android!)\n        // May need a polyfill on mobile or old browsers.\n        if (!fetch) throw new Error('[uibrouter:constructor] UibRouter requires `fetch`. Please use a current browser or load a fetch polyfill.')\n\n        if (!routerConfig) throw new Error('[uibrouter:constructor] No config provided')\n        if (!routerConfig.routes) throw new Error('[uibrouter:constructor] No routes provided in routerConfig')\n        // Add a default route container uf needed\n        if (!routerConfig.routeContainer)routerConfig.routeContainer = '#uibroutecontainer'\n\n        // Save the config\n        this.config = routerConfig\n        // Create/access the route container element, sets this.routeContainerEl\n        this._setRouteContainer()\n\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routerConfig.routes).filter(r => r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded so we can start\n                this._start()\n            } )\n    }\n\n    /** Save a reference to, and create if necessary, the HTML element to hold routes */\n    _setRouteContainer() {\n        const body = document.getElementsByTagName('body')[0]\n        // Get reference to route container or create it\n        let routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        if (!routeContainerEl) {\n            // throw new Error(`Route container element with CSS selector '${routerConfig.routeContainer}' not found in HTML`)\n            const tempContainer = document.createElement('div')\n            tempContainer.setAttribute('id', this.config.routeContainer.replace('#', ''))\n            body.append(tempContainer)\n            routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        }\n    }\n\n    /** Load fetched external elements to templates tags under the head tag\n     * @param {HTMLElement[]} loadedElements Array of loaded external elements to add as templates to the head tag\n     */\n    _appendExternalTemplates(loadedElements) {\n        const head = document.getElementsByTagName('head')[0]\n        // Append the loaded content to the main container\n        loadedElements.forEach(element => {\n            if (Array.isArray(element)) {\n                console.error(...element)\n            } else {\n                head.append(element)\n            }\n        })\n    }\n\n    /** Called once all external templates have been loaded */\n    _start() {\n        if (this.#startDone === true) return // Don't run this again\n\n        // Listen for url hash changes and process route change\n        window.addEventListener('hashchange', (event) => this._hashChange(event) )\n        // Go to default route if no route in url and if a default is defined or ensure current route is shown\n        this.doRoute()\n        // Events on fully loaded ...\n        document.dispatchEvent(new CustomEvent('uibrouter:loaded'))\n        if (uibuilder) uibuilder.set('uibrouter', 'loaded') // eslint-disable-line no-undef\n\n        this.#startDone = true // Don't run this again\n    }\n\n    /** Called when the URL Hash changes\n     * @param {HashChangeEvent} event URL Hash change event object\n     */\n    _hashChange(event) {\n        // console.log(`[uibrouter] hashchange: ${this.keepHashFromUrl(event.oldURL)} => ${this.keepHashFromUrl(event.newURL)}` )\n        this.doRoute(event)\n    }\n\n    /** Create DOM route content from a route template (internal or external)\n     * Route templates have to be a `<template>` tag with an ID that matches the route id.\n     * @param {string} routeId ID of the route definition to use to create the content\n     * @returns {boolean} True if the route content was created successfully, false otherwise\n     */\n    _createRouteContent(routeId) {\n        const rContent = document.querySelector(`#${routeId}`)\n        if (!rContent) {\n            console.error(`[uibrouter:createRouteContent] No route template found for route selector '#${routeId}'. Does the link url match a defined route id?`)\n            return false\n        }\n        const docFrag = rContent.content.cloneNode(true)\n        // Have to re-apply the scripts to make them run - only for external templates\n        if (this.isRouteExternal(routeId)) this._applyScripts(docFrag)\n        // Create the route wrapper div with data-route attrib\n        const tempContainer = document.createElement('div')\n        tempContainer.dataset.route = routeId\n        tempContainer.append(docFrag)\n        // And finally try to append to the container\n        try {\n            this.routeContainerEl.append(tempContainer)\n        } catch (e) {\n            console.error(`[uibrouter:createRouteContent] Failed to apply route id '${routeId}'. \\n ${e.message}`)\n            return false\n        }\n        return true\n    }\n\n    /** Loads an external HTML file into a `<template>` tag, adding the router id as the template id.\n     *  or returns an error array\n     * @param {routeDefinition} routeDefinition Configuration for a single route\n     * @returns {Promise<HTMLTemplateElement[]|[string,string,number,string]>} A promise that fulfills to an HTMLTemplateElement or an array containing error information\n     */\n    _loadExternal(routeDefinition) {\n        // const id = singleConfig.src.split('/').pop().replace('.html','')\n        const id = routeDefinition.id\n        // @ts-ignore\n        return fetch(routeDefinition.src)\n            .then(response => {\n                // Fetch failed?\n                if (response.ok === false) return [routeDefinition.id, routeDefinition.src, response.status, response.statusText]\n                return response.text()\n            })\n            .then((/** @type {string} */ htmlText) => {\n                if (Array.isArray(htmlText)) return htmlText // if the fetch failed\n\n                // Check to see if template already exists, if so, remove it\n                try {\n                    const chkTemplate = document.querySelector(`#${id}`)\n                    if (chkTemplate) chkTemplate.remove()\n                } catch (e) {}\n\n                const tempContainer = document.createElement('template')\n                tempContainer.innerHTML = htmlText\n                tempContainer.setAttribute('id', id)\n                return tempContainer\n            })\n            .catch(error => {\n                console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${routeDefinition.src}:`, error)\n            })\n    }\n\n    /** Remove/re-apply scripts in a container Element so that they are executed.\n     * @param {HTMLElement} tempContainer HTML Element of container to process\n     */\n    _applyScripts(tempContainer) {\n        const scripts = tempContainer.querySelectorAll('script')\n        scripts.forEach( scr => {\n            const newScript = document.createElement('script')\n            newScript.textContent = scr.innerText\n            tempContainer.append(newScript)\n            scr.remove() // remove the origin\n        })\n    }\n    //#endregion --- ----- --\n\n    /** Process a routing request\n     * @param {PointerEvent|MouseEvent|HashChangeEvent|TouchEvent|string} routeSource Either string containing route id or DOM Event object either click/touch on element containing `href=\"#routeid\"` or Hash URL change event\n     */\n    doRoute(routeSource) {\n        const container = this.routeContainerEl\n        if (!container) throw new Error('[uibrouter:doRoute] Cannot route, has router.setup() been called yet?')\n\n        // Remove all the url and query param text and any leading # - returns '' if no current hash\n        const currentHash = this.keepHashFromUrl(window.location.hash)\n\n        // If no route source provided, take the current hash (which might be '' and that will trigger the default route if defined)\n        if (!routeSource) routeSource = currentHash\n\n        let newRouteId, oldRouteId\n\n        // Define new and old routes depending on different call types\n        if (typeof routeSource === 'string') { // Manually provided route id\n            // console.log(`[uibrouter:doRoute] manual: ${currentHash} => ${this.keepHashFromUrl(routeSource)}. Current: ${currentHash}` )\n            newRouteId = this.keepHashFromUrl(routeSource)\n            oldRouteId = currentHash\n            // If no hash & config has default, set the default as new\n            if (newRouteId === '' && this.config.defaultRoute) newRouteId = this.config.defaultRoute\n            // If the new route id not the same as the current one in the url hash, just change the current hash & exit\n            if (newRouteId !== currentHash ) {\n                window.location.hash = `#${newRouteId}`\n                return\n            }\n        } else if (routeSource.type === 'hashchange') { // A URL Hash change event\n            // console.log(`[uibrouter:doRoute] hashchange: ${this.keepHashFromUrl(routeSource.oldURL)} => ${this.keepHashFromUrl(routeSource.newURL)}. Current: ${currentHash}` )\n            const newUrl = routeSource.newURL\n            // Check if URL actually contains a #\n            if (newUrl.includes('#')) {\n                oldRouteId = this.keepHashFromUrl(routeSource.oldURL)\n                newRouteId = this.keepHashFromUrl(newUrl) // Only keep anything after the # & ignoring query params\n            } else return\n        } else { // A mouse click/touch event on a dom element with an href attribute\n            oldRouteId = currentHash\n            // Try to get the route name from the URL hash\n            try {\n                newRouteId = this.keepHashFromUrl(routeSource.target.attributes.href.value) // Only keep anything after the # & ignoring query params\n            } catch (e) {\n                throw new Error('[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute')\n            }\n        }\n\n        let routeShown = false\n\n        // If no defined valid route, undo and throw error\n        if (!newRouteId || !this.routeList().includes(newRouteId)) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            throw new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${newRouteId}'`)\n        }\n\n        // Show the new container (replace or show)\n        if (this.config.hide) {\n            // config.hide = true so hide previous contents\n            if (oldRouteId) {\n                /** @type {HTMLElement|null} */\n                const oldContent = document.querySelector(`div[data-route=\"${oldRouteId}\"]`)\n                if (oldContent) oldContent.style.display = 'none'\n            }\n            /** and unhide new route if possible @type {HTMLElement|null} */\n            const content = document.querySelector(`div[data-route=\"${newRouteId}\"]`)\n            if (content) {\n                content.style.removeProperty('display')\n                routeShown = true\n            } else {\n                // else create new content from template\n                routeShown = this._createRouteContent(newRouteId)\n            }\n        } else {\n            // config.hide != true so remove previous contents\n            container.replaceChildren()\n            // Create new content from template\n            routeShown = this._createRouteContent(newRouteId)\n        }\n\n        // console.log({ newRouteId, oldRouteId, currentHash, routeShown })\n\n        // Roll back the route change if the new route cannot be shown\n        if (routeShown === false) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            return\n        }\n\n        // Retain current and previous route id's\n        this.currentRouteId = newRouteId\n        this.previousRouteId = oldRouteId\n\n        // Record the current route on the route container\n        container.dataset.currentRoute = newRouteId\n\n        // Events on route changed ...\n        document.dispatchEvent(new CustomEvent('uibrouter:route-changed', { detail: { newRouteId, oldRouteId } }))\n        if (uibuilder) uibuilder.set('uibrouter', 'route changed') // eslint-disable-line no-undef\n    }\n\n    /** Return a route config given a route id (returns undefined if route not found)\n     * @param {string} routeId Route ID to search for\n     * @returns {routeDefinition|undefined} Route config for found id else undefined\n     */\n    getRouteConfigById(routeId) {\n        return Object.values(this.config.routes).filter(r => r.id === routeId)[0]\n    }\n\n    /** Return true if the given route is external, false otherwise\n     * Used to correctly (re)apply script tags when cloning the template to the DOM (createRouteContent)\n     * @param {string} routeId Route ID to check\n     * @returns {boolean} True if the given route is external, false otherwise\n     */\n    isRouteExternal(routeId) {\n        const routeConfig = this.getRouteConfigById(routeId)\n        return !!(routeConfig && routeConfig.type === 'url')\n    }\n\n    /** Go to the default route if it has been specified */\n    defaultRoute() {\n        if (this.config.defaultRoute) this.doRoute(this.config.defaultRoute)\n    }\n\n    removeHash() {\n        history.pushState('', document.title, window.location.pathname + window.location.search)\n    }\n\n    /** Empty the current container and remove url hash - does not trigger a route change */\n    noRoute() {\n        this.removeHash()\n        this.routeContainerEl.replaceChildren()\n    }\n\n    /** Only keep anything after the # & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Return an array of route ids (to facilitate creation of menus)\n     * @param {boolean} returnHash If true, returns id's with leading `#` to apply to href attributes else returns the id\n     * @returns {string[]} Array of route id's or route url hashes\n     */\n    routeList(returnHash) {\n        return Object.values(this.config.routes).map((r) => returnHash === true ? `#${r.id}` : r.id)\n    }\n\n    /** Add new route definitions to the existing ones\n     * @param {routeDefinition|routeDefinition[]} routeConfig Single or array of route definitions to add\n     */\n    addRoutes(routeConfig) {\n        if (!Array.isArray(routeConfig)) routeConfig = [routeConfig]\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routeConfig).filter(r => r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded - Add new routes to config\n                this.config.routes.push(...routeConfig)\n                // Let everyone know it all finished\n                document.dispatchEvent(new CustomEvent('uibrouter:routes-added', { detail: routeConfig }))\n                if (uibuilder) uibuilder.set('uibrouter', 'routes added') // eslint-disable-line no-undef, promise/always-return\n            } )\n    }\n\n    // TODO\n    // deleteRoutes(aRoutes) {\n    //     // Delete all if no list provided\n    //     if (!aRoutes) aRoutes = this.config.routes\n    //     if (!Array.isArray(aRoutes)) aRoutes = [aRoutes]\n    //     console.log('to be deleted', this.config.routes.filter(r => aRoutes.includes(r.id)))\n    //     console.log('to be retained', this.config.routes.filter(r => !aRoutes.includes(r.id)))\n\n    //     // TODO actually remove the unwanted route templates\n    //     // TODO remove from the config: this.config.routes = this.config.routes.filter(r => !aRoutes.includes(r.id))\n\n    //     // ? Optional future upgrade - attempt to also remove any links to this route?\n    // }\n\n    // TODO\n    // deleteTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO delete\n    //     } )\n    // }\n\n    // TODO\n    // reloadTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO reload\n    //     } )\n    // }\n} // ---- End of class ----\n\n// For use in ESM loads\nexport { UibRouter }\nexport default UibRouter\n\n// Auto-assign for when the library is loaded via a script tag\nif (!window['UibRouter']) {\n    window['UibRouter'] = UibRouter\n} else {\n    console.warn('`UibRouter` already assigned to window. Have you tried to load it more than once?')\n}\n"],
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-  "names": ["_startDone", "UibRouter", "routerConfig", "__publicField", "__privateAdd", "r", "body", "routeContainerEl", "tempContainer", "loadedElements", "head", "element", "__privateGet", "event", "__privateSet", "routeId", "rContent", "docFrag", "e", "routeDefinition", "id", "response", "htmlText", "chkTemplate", "error", "scr", "newScript", "routeSource", "container", "currentHash", "newRouteId", "oldRouteId", "newUrl", "routeShown", "oldContent", "content", "routeConfig", "url", "returnHash", "uibrouter_default", "UibRouter"]
+  "sourcesContent": ["/* eslint-disable no-undef */\n// @ts-nocheck\n/** A simple, vanilla JavaScript front-end router class\n * Included in node-red-contrib-uibuilder but is not dependent on it.\n * May be used in other contexts as desired.\n * \n * Copyright (c) 2023-2023 Julian Knight (Totally Information)\n * https://it.knightnet.org.uk\n *\n * Licensed under the Apache License, Version 2.0 (the 'License');\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an 'AS IS' BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/** ---------------------------------------------------------------------\n * TODO\n * Methods needed:\n *   Delete route\n *   Update/reload route\n *   shutdown - that removes all elements\n *   delete templates - unloads a list of (or all) templates\n *   reload templates - to facilitate updates of a list of (or all) templates\n * Additional options:\n *   unload templates after they are added to the route container. Only if hide=true. `unload: true`\n *   Maybe: options to auto-load js and css files with the same name as a template file.\n * ---------------------------------------------------------------------  */\n\n/** Type definitions\n * routeConfig\n * @typedef {object} routeDefinition Single route configuration\n * @property {string} id REQUIRED. Route ID\n * @property {string} src REQUIRED. CSS Selector for template tag routes, url for external routes\n * @property {\"url\"|undefined} [type] OPTIONAL. \"url\" for external routes\n * UibRouterConfig\n * @typedef {object} UibRouterConfig Configuration for the UiBRouter class instances\n * @property {routeDefinition[]} routes REQUIRED. Array of route definitions\n * @property {string} [defaultRoute] OPTIONAL. If set to a route id, that route will be automatically shown on load\n * @property {string} [routeContainer] OPTIONAL. CSS Selector for an HTML Element containing routes\n * @property {boolean} [hide] OPTIONAL. If TRUE, routes will be hidden/shown on change instead of removed/added\n * @property {boolean} [unload] OPTIONAL. If TRUE, route templates will be unloaded from DOM after access. Only useful with the `hide` option\n */\n\nclass UibRouter { // eslint-disable-line no-unused-vars\n    //#region --- Variables ---\n    /** Class version */\n    static version = '1.0.1'\n\n    /** Configuration settings @type {UibRouterConfig} */\n    config\n    /** Reference to the container DOM element - set in setup() @type {HTMLDivElement} */\n    routeContainerEl\n    /** The current route id after doRoute() has been called */\n    currentRouteId\n    /** The previous route id after doRoute() has been called */\n    previousRouteId\n\n    /** Internal only. Set to true when the _start() method has been called */\n    #startDone = false\n    //#endregion --- ----- ---\n\n    //#region --- Internal Methods ---\n    /** Class constructor\n     * @param {UibRouterConfig} routerConfig Configuration object\n     */\n    constructor(routerConfig) {\n        // Fetch is on desktop browsers since 2017 at latest. Not so much on mobile (Android!)\n        // May need a polyfill on mobile or old browsers.\n        if (!fetch) throw new Error('[uibrouter:constructor] UibRouter requires `fetch`. Please use a current browser or load a fetch polyfill.')\n\n        if (!routerConfig) throw new Error('[uibrouter:constructor] No config provided')\n        if (!routerConfig.routes) throw new Error('[uibrouter:constructor] No routes provided in routerConfig')\n        // Add a default route container uf needed\n        if (!routerConfig.routeContainer)routerConfig.routeContainer = '#uibroutecontainer'\n\n        // Save the config\n        this.config = routerConfig\n        // Create/access the route container element, sets this.routeContainerEl\n        this._setRouteContainer()\n\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routerConfig.routes).filter(r => r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded so we can start\n                this._start()\n            } )\n    }\n\n    /** Save a reference to, and create if necessary, the HTML element to hold routes */\n    _setRouteContainer() {\n        const body = document.getElementsByTagName('body')[0]\n        // Get reference to route container or create it\n        let routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        if (!routeContainerEl) {\n            // throw new Error(`Route container element with CSS selector '${routerConfig.routeContainer}' not found in HTML`)\n            const tempContainer = document.createElement('div')\n            tempContainer.setAttribute('id', this.config.routeContainer.replace('#', ''))\n            body.append(tempContainer)\n            routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        }\n    }\n\n    /** Load fetched external elements to templates tags under the head tag\n     * @param {HTMLElement[]} loadedElements Array of loaded external elements to add as templates to the head tag\n     */\n    _appendExternalTemplates(loadedElements) {\n        const head = document.getElementsByTagName('head')[0]\n        // Append the loaded content to the main container\n        loadedElements.forEach(element => {\n            if (Array.isArray(element)) {\n                console.error(...element)\n            } else {\n                head.append(element)\n            }\n        })\n    }\n\n    /** Called once all external templates have been loaded */\n    _start() {\n        if (this.#startDone === true) return // Don't run this again\n\n        // Listen for url hash changes and process route change\n        window.addEventListener('hashchange', (event) => this._hashChange(event) )\n        // Go to default route if no route in url and if a default is defined or ensure current route is shown\n        this.doRoute()\n        // Events on fully loaded ...\n        document.dispatchEvent(new CustomEvent('uibrouter:loaded'))\n        if (uibuilder) uibuilder.set('uibrouter', 'loaded') // eslint-disable-line no-undef\n\n        this.#startDone = true // Don't run this again\n    }\n\n    /** Called when the URL Hash changes\n     * @param {HashChangeEvent} event URL Hash change event object\n     */\n    _hashChange(event) {\n        // console.log(`[uibrouter] hashchange: ${this.keepHashFromUrl(event.oldURL)} => ${this.keepHashFromUrl(event.newURL)}` )\n        this.doRoute(event)\n    }\n\n    /** Create DOM route content from a route template (internal or external)\n     * Route templates have to be a `<template>` tag with an ID that matches the route id.\n     * @param {string} routeId ID of the route definition to use to create the content\n     * @returns {boolean} True if the route content was created successfully, false otherwise\n     */\n    _createRouteContent(routeId) {\n        const rContent = document.querySelector(`#${routeId}`)\n        if (!rContent) {\n            console.error(`[uibrouter:createRouteContent] No route template found for route selector '#${routeId}'. Does the link url match a defined route id?`)\n            return false\n        }\n        const docFrag = rContent.content.cloneNode(true)\n        // Have to re-apply the scripts to make them run - only for external templates\n        if (this.isRouteExternal(routeId)) this._applyScripts(docFrag)\n        // Create the route wrapper div with data-route attrib\n        const tempContainer = document.createElement('div')\n        tempContainer.dataset.route = routeId\n        tempContainer.append(docFrag)\n        // And finally try to append to the container\n        try {\n            this.routeContainerEl.append(tempContainer)\n        } catch (e) {\n            console.error(`[uibrouter:createRouteContent] Failed to apply route id '${routeId}'. \\n ${e.message}`)\n            return false\n        }\n        return true\n    }\n\n    /** Loads an external HTML file into a `<template>` tag, adding the router id as the template id.\n     *  or returns an error array\n     * @param {routeDefinition} routeDefinition Configuration for a single route\n     * @returns {Promise<HTMLTemplateElement[]|[string,string,number,string]>} A promise that fulfills to an HTMLTemplateElement or an array containing error information\n     */\n    _loadExternal(routeDefinition) {\n        // const id = singleConfig.src.split('/').pop().replace('.html','')\n        const id = routeDefinition.id\n        // @ts-ignore\n        return fetch(routeDefinition.src)\n            .then(response => {\n                // Fetch failed?\n                if (response.ok === false) return [routeDefinition.id, routeDefinition.src, response.status, response.statusText]\n                return response.text()\n            })\n            .then((/** @type {string} */ htmlText) => {\n                if (Array.isArray(htmlText)) return htmlText // if the fetch failed\n\n                // Check to see if template already exists, if so, remove it\n                try {\n                    const chkTemplate = document.querySelector(`#${id}`)\n                    if (chkTemplate) chkTemplate.remove()\n                } catch (e) {}\n\n                const tempContainer = document.createElement('template')\n                tempContainer.innerHTML = htmlText\n                tempContainer.setAttribute('id', id)\n                return tempContainer\n            })\n            .catch(error => {\n                console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${routeDefinition.src}:`, error)\n            })\n    }\n\n    /** Remove/re-apply scripts in a container Element so that they are executed.\n     * @param {HTMLElement} tempContainer HTML Element of container to process\n     */\n    _applyScripts(tempContainer) {\n        const scripts = tempContainer.querySelectorAll('script')\n        scripts.forEach( scr => {\n            const newScript = document.createElement('script')\n            newScript.textContent = scr.innerText\n            tempContainer.append(newScript)\n            scr.remove() // remove the origin\n        })\n    }\n    //#endregion --- ----- --\n\n    /** Process a routing request\n     * @param {PointerEvent|MouseEvent|HashChangeEvent|TouchEvent|string} routeSource Either string containing route id or DOM Event object either click/touch on element containing `href=\"#routeid\"` or Hash URL change event\n     */\n    doRoute(routeSource) {\n        const container = this.routeContainerEl\n        if (!container) throw new Error('[uibrouter:doRoute] Cannot route, has router.setup() been called yet?')\n\n        // Remove all the url and query param text and any leading # - returns '' if no current hash\n        const currentHash = this.keepHashFromUrl(window.location.hash)\n\n        // If no route source provided, take the current hash (which might be '' and that will trigger the default route if defined)\n        if (!routeSource) routeSource = currentHash\n\n        let newRouteId, oldRouteId\n\n        // Define new and old routes depending on different call types\n        if (typeof routeSource === 'string') { // Manually provided route id\n            // console.log(`[uibrouter:doRoute] manual: ${currentHash} => ${this.keepHashFromUrl(routeSource)}. Current: ${currentHash}` )\n            newRouteId = this.keepHashFromUrl(routeSource)\n            oldRouteId = currentHash\n            // If no hash & config has default, set the default as new\n            if (newRouteId === '' && this.config.defaultRoute) newRouteId = this.config.defaultRoute\n            // If the new route id not the same as the current one in the url hash, just change the current hash & exit\n            if (newRouteId !== currentHash ) {\n                window.location.hash = `#${newRouteId}`\n                return\n            }\n        } else if (routeSource.type === 'hashchange') { // A URL Hash change event\n            // console.log(`[uibrouter:doRoute] hashchange: ${this.keepHashFromUrl(routeSource.oldURL)} => ${this.keepHashFromUrl(routeSource.newURL)}. Current: ${currentHash}` )\n            const newUrl = routeSource.newURL\n            // Check if URL actually contains a #\n            if (newUrl.includes('#')) {\n                oldRouteId = this.keepHashFromUrl(routeSource.oldURL)\n                newRouteId = this.keepHashFromUrl(newUrl) // Only keep anything after the # & ignoring query params\n            } else return\n        } else { // A mouse click/touch event on a dom element with an href attribute\n            oldRouteId = currentHash\n            // Try to get the route name from the URL hash\n            try {\n                newRouteId = this.keepHashFromUrl(routeSource.target.attributes.href.value) // Only keep anything after the # & ignoring query params\n            } catch (e) {\n                throw new Error('[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute')\n            }\n        }\n\n        let routeShown = false\n\n        // If no defined valid route, undo and throw error\n        if (!newRouteId || !this.routeList().includes(newRouteId)) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            throw new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${newRouteId}'`)\n        }\n\n        // Show the new container (replace or show)\n        if (this.config.hide) {\n            // config.hide = true so hide previous contents\n            if (oldRouteId) {\n                /** @type {HTMLElement|null} */\n                const oldContent = document.querySelector(`div[data-route=\"${oldRouteId}\"]`)\n                if (oldContent) oldContent.style.display = 'none'\n            }\n            /** and unhide new route if possible @type {HTMLElement|null} */\n            const content = document.querySelector(`div[data-route=\"${newRouteId}\"]`)\n            if (content) {\n                content.style.removeProperty('display')\n                routeShown = true\n            } else {\n                // else create new content from template\n                routeShown = this._createRouteContent(newRouteId)\n            }\n        } else {\n            // config.hide != true so remove previous contents\n            container.replaceChildren()\n            // Create new content from template\n            routeShown = this._createRouteContent(newRouteId)\n        }\n\n        // console.log({ newRouteId, oldRouteId, currentHash, routeShown })\n\n        // Roll back the route change if the new route cannot be shown\n        if (routeShown === false) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            return\n        }\n\n        // Retain current and previous route id's\n        this.currentRouteId = newRouteId\n        this.previousRouteId = oldRouteId\n\n        // Record the current route on the route container\n        container.dataset.currentRoute = newRouteId\n\n        // Update any existing HTML menu items\n        this.setCurrentMenuItems()\n\n        // Events on route changed ...\n        document.dispatchEvent(new CustomEvent('uibrouter:route-changed', { detail: { newRouteId, oldRouteId } }))\n        if (uibuilder) {\n            uibuilder.set('uibrouter', 'route changed')\n            uibuilder.set('uibrouter_CurrentRoute', newRouteId)\n            uibuilder.set('uibrouter_CurrentHeading', this.routeHeading())\n            uibuilder.set('uibrouter_CurrentDetails', this.getRouteConfigById(newRouteId))\n        }\n    }\n\n    /** Return a route config given a route id (returns undefined if route not found)\n     * @param {string} routeId Route ID to search for\n     * @returns {routeDefinition|undefined} Route config for found id else undefined\n     */\n    getRouteConfigById(routeId) {\n        return Object.values(this.config.routes).filter(r => r.id === routeId)[0]\n    }\n\n    /** Return true if the given route is external, false otherwise\n     * Used to correctly (re)apply script tags when cloning the template to the DOM (createRouteContent)\n     * @param {string} routeId Route ID to check\n     * @returns {boolean} True if the given route is external, false otherwise\n     */\n    isRouteExternal(routeId) {\n        const routeConfig = this.getRouteConfigById(routeId)\n        return !!(routeConfig && routeConfig.type === 'url')\n    }\n\n    /** Go to the default route if it has been specified */\n    defaultRoute() {\n        if (this.config.defaultRoute) this.doRoute(this.config.defaultRoute)\n    }\n\n    removeHash() {\n        history.pushState('', document.title, window.location.pathname + window.location.search)\n    }\n\n    /** Empty the current container and remove url hash - does not trigger a route change */\n    noRoute() {\n        this.removeHash()\n        this.routeContainerEl.replaceChildren()\n    }\n\n    /** Only keep anything after the # & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Return an array of route ids (to facilitate creation of menus)\n     * @param {boolean} returnHash If true, returns id's with leading `#` to apply to href attributes else returns the id\n     * @returns {string[]} Array of route id's or route url hashes\n     */\n    routeList(returnHash) {\n        return Object.values(this.config.routes).map((r) => returnHash === true ? `#${r.id}` : r.id)\n    }\n\n    /** Add new route definitions to the existing ones\n     * @param {routeDefinition|routeDefinition[]} routeConfig Single or array of route definitions to add\n     */\n    addRoutes(routeConfig) {\n        if (!Array.isArray(routeConfig)) routeConfig = [routeConfig]\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routeConfig).filter(r => r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded - Add new routes to config\n                this.config.routes.push(...routeConfig)\n                // Let everyone know it all finished\n                document.dispatchEvent(new CustomEvent('uibrouter:routes-added', { detail: routeConfig }))\n                if (uibuilder) uibuilder.set('uibrouter', 'routes added') // eslint-disable-line no-undef, promise/always-return\n            } )\n    }\n\n    //#region --- utils for page display & processing ---\n    setCurrentMenuItems() {\n        // const items = document.querySelectorAll(`li[data-route=\"${this.currentRouteId}\"]`)\n        const items = document.querySelectorAll('li[data-route]')\n        items.forEach( item => {\n            if (item.dataset.route === this.currentRouteId) {\n                item.classList.add('currentRoute')\n                item.setAttribute('aria-current', 'page')\n            } else {\n                item.classList.remove('currentRoute')\n                item.removeAttribute('aria-current')\n            }\n        })\n    }\n\n    routeHeading() {\n        const thisRoute = this.currentRoute() || {}\n        return thisRoute.heading || thisRoute.title || thisRoute.description || thisRoute.id || '[ROUTE NOT FOUND]'\n    }\n\n    currentRoute() {\n        return this.getRouteConfigById(this.currentRouteId)\n    }\n    //#endregion ---- ----- ----\n\n    // TODO\n    // deleteRoutes(aRoutes) {\n    //     // Delete all if no list provided\n    //     if (!aRoutes) aRoutes = this.config.routes\n    //     if (!Array.isArray(aRoutes)) aRoutes = [aRoutes]\n    //     console.log('to be deleted', this.config.routes.filter(r => aRoutes.includes(r.id)))\n    //     console.log('to be retained', this.config.routes.filter(r => !aRoutes.includes(r.id)))\n\n    //     // TODO actually remove the unwanted route templates\n    //     // TODO remove from the config: this.config.routes = this.config.routes.filter(r => !aRoutes.includes(r.id))\n\n    //     // ? Optional future upgrade - attempt to also remove any links to this route?\n    // }\n\n    // TODO\n    // deleteTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO delete\n    //     } )\n    // }\n\n    // TODO\n    // reloadTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO reload\n    //     } )\n    // }\n} // ---- End of class ----\n\n// For use in ESM loads\nexport { UibRouter }\nexport default UibRouter\n\n// Auto-assign for when the library is loaded via a script tag\nif (!window['UibRouter']) {\n    window['UibRouter'] = UibRouter\n} else {\n    console.warn('`UibRouter` already assigned to window. Have you tried to load it more than once?')\n}\n"],
+  "mappings": 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,cAAc,EACjCA,EAAK,aAAa,eAAgB,MAAM,IAExCA,EAAK,UAAU,OAAO,cAAc,EACpCA,EAAK,gBAAgB,cAAc,EAE3C,CAAC,CACL,CAEA,cAAe,CACX,IAAMC,EAAY,KAAK,aAAa,GAAK,CAAC,EAC1C,OAAOA,EAAU,SAAWA,EAAU,OAASA,EAAU,aAAeA,EAAU,IAAM,mBAC5F,CAEA,cAAe,CACX,OAAO,KAAK,mBAAmB,KAAK,cAAc,CACtD,CAgCJ,EA3YIxC,EAAA,YAZAG,EAHEF,EAGK,UAAU,SA2ZrB,IAAOwC,EAAQC,EAGV,OAAO,UAGR,QAAQ,KAAK,mFAAmF,EAFhG,OAAO,UAAeA",
+  "names": ["_startDone", "UibRouter", "routerConfig", "__publicField", "__privateAdd", "r", "body", "routeContainerEl", "tempContainer", "loadedElements", "head", "element", "__privateGet", "event", "__privateSet", "routeId", "rContent", "docFrag", "e", "routeDefinition", "id", "response", "htmlText", "chkTemplate", "error", "scr", "newScript", "routeSource", "container", "currentHash", "newRouteId", "oldRouteId", "newUrl", "routeShown", "oldContent", "content", "routeConfig", "url", "returnHash", "item", "thisRoute", "uibrouter_default", "UibRouter"]
 }
diff --git a/src/front-end-module/uibrouter.js b/src/front-end-module/uibrouter.js
index 6a781223..a0c6b3ef 100644
--- a/src/front-end-module/uibrouter.js
+++ b/src/front-end-module/uibrouter.js
@@ -1,3 +1,4 @@
+/* eslint-disable no-undef */
 // @ts-nocheck
 /** A simple, vanilla JavaScript front-end router class
  * Included in node-red-contrib-uibuilder but is not dependent on it.
@@ -322,9 +323,17 @@ class UibRouter { // eslint-disable-line no-unused-vars
         // Record the current route on the route container
         container.dataset.currentRoute = newRouteId
 
+        // Update any existing HTML menu items
+        this.setCurrentMenuItems()
+
         // Events on route changed ...
         document.dispatchEvent(new CustomEvent('uibrouter:route-changed', { detail: { newRouteId, oldRouteId } }))
-        if (uibuilder) uibuilder.set('uibrouter', 'route changed') // eslint-disable-line no-undef
+        if (uibuilder) {
+            uibuilder.set('uibrouter', 'route changed')
+            uibuilder.set('uibrouter_CurrentRoute', newRouteId)
+            uibuilder.set('uibrouter_CurrentHeading', this.routeHeading())
+            uibuilder.set('uibrouter_CurrentDetails', this.getRouteConfigById(newRouteId))
+        }
     }
 
     /** Return a route config given a route id (returns undefined if route not found)
@@ -395,6 +404,31 @@ class UibRouter { // eslint-disable-line no-unused-vars
             } )
     }
 
+    //#region --- utils for page display & processing ---
+    setCurrentMenuItems() {
+        // const items = document.querySelectorAll(`li[data-route="${this.currentRouteId}"]`)
+        const items = document.querySelectorAll('li[data-route]')
+        items.forEach( item => {
+            if (item.dataset.route === this.currentRouteId) {
+                item.classList.add('currentRoute')
+                item.setAttribute('aria-current', 'page')
+            } else {
+                item.classList.remove('currentRoute')
+                item.removeAttribute('aria-current')
+            }
+        })
+    }
+
+    routeHeading() {
+        const thisRoute = this.currentRoute() || {}
+        return thisRoute.heading || thisRoute.title || thisRoute.description || thisRoute.id || '[ROUTE NOT FOUND]'
+    }
+
+    currentRoute() {
+        return this.getRouteConfigById(this.currentRouteId)
+    }
+    //#endregion ---- ----- ----
+
     // TODO
     // deleteRoutes(aRoutes) {
     //     // Delete all if no list provided

From 34193f19ceba14d88a0438ab26f845c366594f88 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Fri, 29 Dec 2023 13:23:36 +0000
Subject: [PATCH 44/78] Add formatNumber fn. Add initial socket.io room
 handling. Disconnect not close socket. Add socket connection for the global
 socket. Add manual socket connect/disconnect fns

---
 src/front-end-module/uibuilder.module.js | 112 ++++++++++++++++-------
 1 file changed, 78 insertions(+), 34 deletions(-)

diff --git a/src/front-end-module/uibuilder.module.js b/src/front-end-module/uibuilder.module.js
index a8cbfe3f..6bf8abc9 100644
--- a/src/front-end-module/uibuilder.module.js
+++ b/src/front-end-module/uibuilder.module.js
@@ -5,7 +5,7 @@
   Please use the default index.js file for your own code and leave this as-is.
   See Uib._meta for client version string
 
-  Copyright (c) 2022-2023 Julian Knight (Totally Information)
+  Copyright (c) 2022-2024 Julian Knight (Totally Information)
 
   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
@@ -27,41 +27,11 @@
  */
 //#endregion --- Type Defs --- //
 
-//#region --- We need the Socket.IO & ui libraries & the uib-var component  --- //
+// We need the Socket.IO & ui libraries & the uib-var component  --- //
 // @ts-ignore - Note: Only works when using esbuild to bundle
 import Ui from './ui'
-import UibVar from '../components/uib-var'
 import io from 'socket.io-client'
-
-// TODO - Maybe - check if already loaded as window['io']?
-// TODO - Maybe - Should this be moved to inside the class - would know the httpRoot then so less need to guess?
-// TODO           Or, could pull the cookie processing out of the class
-// const ioLocns = [ // Likely locations of the Socket.IO client library
-//     // Where it should normally be
-//     '../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',
-//     // Where it might be if using a custom uib Express server and haven't changed httpNodeRoot
-//     '/uibuilder/vendor/socket.io-client/socket.io.esm.min.js',
-//     // Where it might be if using a custom uib Express server and have changed httpNodeRoot
-//     '../../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',
-//     '../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',
-//     '../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',
-//     '../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',
-//     // Direct from the Internet - last ditch attempt
-//     'https://cdn.jsdelivr.net/npm/socket.io-client/+esm',
-// ]
-
-// let io
-// for (const locn of ioLocns) {
-//     try {
-//         ({ io } = await import(locn))
-//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library found at '${locn}'`)()
-//     } catch (e) {
-//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library not found at '${locn}'`)()
-//     }
-//     if (io) break
-// }
-// if (!io) log('error', 'uibuilder.module.js', 'Socket.IO client failed to load')()
-//#endregion -------- -------- -------- //
+import UibVar from '../components/uib-var'
 
 const version = '6.8.0-src'
 
@@ -969,6 +939,35 @@ export const Uib = class Uib {
         return window.location
     }
 
+    /** Format a number using the INTL standard library - compatible with uib-var filter function
+     * @param {number} value Number to format
+     * @param {number} decimalPlaces Number of decimal places to include. Default=no default
+     * @param {string} intl standard locale spec, e.g. "ja-JP" or "en-GB". Default=navigator.language
+     * @param {object} opts INTL library options object. Optional
+     * @returns {string} formatted number
+     * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/toLocaleString
+     */
+    formatNumber(value, decimalPlaces, intl, opts) {
+        if (isNaN(value)) {
+            log('error', 'formatNumber', `Value must be a number. Value type: "${typeof value}"`)()
+            return 'NaN'
+        }
+        if (!opts) opts = {}
+        if (!intl) intl = navigator.language ? navigator.language : 'en-GB'
+        if (decimalPlaces) {
+            opts.minimumFractionDigits = decimalPlaces
+            opts.maximumFractionDigits = decimalPlaces
+        }
+        let out
+        try {
+            out = Number(value).toLocaleString(intl, opts)
+        } catch (e) {
+            log('error', 'formatNumber', `${e.message}. value=${value}, dp=${decimalPlaces}, intl="${intl}", opts=${JSON.stringify(opts)}`)()
+            return 'NaN'
+        }
+        return out
+    }
+
     //#endregion -------- -------- -------- //
 
     //#region ------- UI handlers --------- //
@@ -2120,6 +2119,28 @@ export const Uib = class Uib {
         this._send(msg, this._ioChannels.client, originator)
     }
 
+    // ! TODO: Rooms do not auto-reconnect. Add tracking and update _onConnect
+
+    // NOTE: Rooms only understood by server not client so we have to use custom emits
+    //       They do not auto-reconnect
+
+    /** Send a msg to a pre-defined Socket.IO room
+     * @link https://socket.io/docs/v4/rooms/
+     * @param {string} room Name of a Socket.IO pre-defined room.
+     * @param {*} msg Message to send
+     */
+    sendRoom(room, msg) {
+        this._socket.emit('uib-room-send', room, msg )
+    }
+
+    joinRoom(room) {
+        this._socket.emit('uib-room-join', room)
+    }
+
+    leaveRoom(room) {
+        this._socket.emit('uib-room-leave', room)
+    }
+
     /** Send a control msg to NR
      * @param {object} msg Message to send
      */
@@ -2209,7 +2230,7 @@ export const Uib = class Uib {
             log('warn', 'Uib:checkConnect:setTimeout', `Socket.IO reconnection attempt. Current delay: ${delay}. Depth: ${depth}`)()
 
             // this is necessary sometimes when the socket fails to connect on startup
-            this._socket.close()
+            this._socket.disconnect()
 
             // Try to reconnect
             this._socket.connect()
@@ -2284,6 +2305,8 @@ export const Uib = class Uib {
         log('trace', 'Uib:ioSetup', `About to create IO object. Transports: [${this.socketOptions.transports.join(', ')}]`)()
         this._socket = io(this.ioNamespace, this.socketOptions)
 
+        this._connectGlobal()
+
         /** When the socket is connected - set ioConnected flag and reset connect timer  */
         this._socket.on('connect', this._onConnect.bind(this))
 
@@ -2359,6 +2382,27 @@ export const Uib = class Uib {
             */
     } // ---- End of ioSetup ---- //
 
+    /** Connect to global namespace & create global listener that updates the `globalMsg` var */
+    _connectGlobal() {
+        this._socketGlobal = io('/', this.socketOptions)
+        this._socketGlobal.onAny( (...args) => {
+            this.set('globalMsg', args.slice(0, -1))
+        })
+    }
+
+    /** Manually (re)connect socket.io */
+    connect() {
+        // ? Should I use this._checkConnect()?
+        this._socket.connect()
+    }
+
+    /** Manually disconnect socket.io and stop any auto-reconnect timer */
+    disconnect() {
+        this._socket.disconnect()
+        // As this is a manual disconnect, stop any reconnect timers
+        if (this.#timerid) window.clearTimeout(this.#timerid)
+    }
+
     //#endregion -------- ------------ -------- //
 
     //#region ------- Class construction & startup method -------- //

From da3b6431faaef7ed723fb76d0209108007bf0b6b Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Fri, 29 Dec 2023 13:24:20 +0000
Subject: [PATCH 45/78] Updates to core, router and uib-var - see source files
 for details.

---
 front-end/uibuilder.esm.js          | 466 +++++++++++++++++++---------
 front-end/uibuilder.esm.min.js      |   2 +-
 front-end/uibuilder.esm.min.js.map  |   8 +-
 front-end/uibuilder.iife.js         | 464 ++++++++++++++++++---------
 front-end/uibuilder.iife.min.js     |   2 +-
 front-end/uibuilder.iife.min.js.map |   8 +-
 6 files changed, 645 insertions(+), 305 deletions(-)

diff --git a/front-end/uibuilder.esm.js b/front-end/uibuilder.esm.js
index f776810f..41cdb1f8 100644
--- a/front-end/uibuilder.esm.js
+++ b/front-end/uibuilder.esm.js
@@ -1081,146 +1081,6 @@ var require_ui = __commonJS({
 // src/front-end-module/uibuilder.module.js
 var import_ui = __toESM(require_ui());
 
-// src/components/uib-var.js
-var _UibVar = class _UibVar extends HTMLElement {
-  //#endregion --- Class Properties ---
-  constructor() {
-    super();
-    //#region --- Class Properties ---
-    /** @type {string} Name of the uibuilder mangaged variable to use */
-    __publicField(this, "variable");
-    /** Current value of the watched variable */
-    __publicField(this, "value");
-    /** Whether to output if the variable is undefined */
-    __publicField(this, "undefined", false);
-    /** Whether to send update value to Node-RED on change */
-    __publicField(this, "report", false);
-    /** What is the value type */
-    __publicField(this, "type", "plain");
-    /** what are the available types? */
-    __publicField(this, "types", ["plain", "html", "markdown", "object"]);
-    /** Mini jQuery-like shadow dom selector (see constructor) */
-    __publicField(this, "$");
-    this.shadow = this.attachShadow({ mode: "open", delegatesFocus: true });
-    this.$ = this.shadowRoot.querySelector.bind(this.shadowRoot);
-    this.css = document.createElement("link");
-    this.css.setAttribute("type", "text/css");
-    this.css.setAttribute("rel", "stylesheet");
-    this.css.setAttribute("href", "../uibuilder/uib-brand.min.css");
-    this.dispatchEvent(new Event(`uib-var:construction`, { bubbles: true, composed: true }));
-  }
-  // Makes HTML attribute change watched
-  static get observedAttributes() {
-    return _UibVar.props;
-  }
-  /** NOTE: On initial startup, this is called for each watched attrib set in HTML - BEFORE connectedCallback is called  */
-  attributeChangedCallback(attrib, oldVal, newVal) {
-    if (oldVal === newVal)
-      return;
-    switch (attrib) {
-      case "variable": {
-        if (newVal === "")
-          throw new Error('[uib-var] Attribute "variable" MUST be set to a UIBUILDER managed variable name');
-        this.variable = newVal;
-        this.doWatch();
-        break;
-      }
-      case "undefined": {
-        if (newVal === "" || ["on", "true", "report"].includes(newVal.toLowerCase()))
-          this.undefined = true;
-        else
-          this.undefined = false;
-        break;
-      }
-      case "report": {
-        if (newVal === "" || ["on", "true", "report"].includes(newVal.toLowerCase()))
-          this.report = true;
-        else
-          this.report = false;
-        break;
-      }
-      case "type": {
-        if (newVal === "" || !this.types.includes(newVal.toLowerCase()))
-          this.type = "plain";
-        else
-          this.type = newVal;
-        break;
-      }
-      default: {
-        this[attrib] = newVal;
-        break;
-      }
-    }
-  }
-  // --- end of attributeChangedCallback --- //
-  // Runs when an instance is added to the DOM
-  connectedCallback() {
-    if (!this.id) {
-      if (!this.name)
-        this.name = this.getAttribute("name");
-      if (this.name)
-        this.id = this.name.toLowerCase().replace(/\s/g, "_");
-      else
-        this.id = `uib-var-${++_UibVar._iCount}`;
-    }
-  }
-  // ---- end of connectedCallback ---- //
-  // Runs when an instance is removed from the DOM
-  // disconnectedCallback() {} // ---- end of disconnectedCallback ---- //
-  /** Process changes to the required uibuilder variable */
-  doWatch() {
-    if (!this.variable)
-      throw new Error("No variable name provided");
-    this.value = window["uibuilder"].get(this.variable);
-    this.varDom();
-    window["uibuilder"].onChange(this.variable, (val) => {
-      this.value = val;
-      this.varDom();
-      if (this.report === true)
-        window["uibuilder"].send({ topic: this.variable, payload: this.value || void 0 });
-    });
-  }
-  /** Convert this.value to DOM output */
-  varDom() {
-    if (this.value === void 0 && this.undefined !== true) {
-      this.shadow.innerHTML = "<slot></slot>";
-      return;
-    }
-    let val = this.value;
-    switch (this.type) {
-      case "markdown": {
-        this.shadow.innerHTML = window["uibuilder"].sanitiseHTML(window["uibuilder"].convertMarkdown(val));
-        break;
-      }
-      case "object": {
-        this.shadow.innerHTML = `<pre class="syntax-highlight">${window["uibuilder"].syntaxHighlight(val)}</pre>`;
-        break;
-      }
-      case "plain":
-      case "html":
-      default: {
-        const t = typeof val;
-        if (Array.isArray(val) || t === "[object Object]" || t === "object") {
-          try {
-            this.shadow.innerHTML = JSON.stringify(val);
-          } catch (e) {
-            this.shadow.innerHTML = val;
-          }
-        } else {
-          this.shadow.innerHTML = val;
-        }
-        break;
-      }
-    }
-    this.shadow.appendChild(this.css);
-  }
-};
-/** Holds a count of how many instances of this component are on the page */
-__publicField(_UibVar, "_iCount", 0);
-/** @type {Array<string>} List of all of the html attribs (props) listened to */
-__publicField(_UibVar, "props", ["name", "id", "variable", "undefined", "report", "type"]);
-var UibVar = _UibVar;
-
 // node_modules/engine.io-parser/build/esm/commons.js
 var PACKET_TYPES = /* @__PURE__ */ Object.create(null);
 PACKET_TYPES["open"] = "0";
@@ -4535,6 +4395,251 @@ Object.assign(lookup2, {
   connect: lookup2
 });
 
+// src/components/uib-var.js
+var _UibVar = class _UibVar extends HTMLElement {
+  //#endregion --- Class Properties ---
+  constructor() {
+    super();
+    //#region --- Class Properties ---
+    /** @type {string} Name of the uibuilder mangaged variable to use */
+    __publicField(this, "variable");
+    /** Current value of the watched variable */
+    __publicField(this, "value");
+    /** Whether to output if the variable is undefined */
+    __publicField(this, "undef", false);
+    /** Whether to send update value to Node-RED on change */
+    __publicField(this, "report", false);
+    /** What is the value type */
+    __publicField(this, "type", "plain");
+    /** what are the available types? */
+    __publicField(this, "types", ["plain", "html", "markdown", "object"]);
+    /** Holds uibuilder.onTopic listeners */
+    __publicField(this, "topicMonitors", {});
+    /** Is UIBUILDER loaded? */
+    __publicField(this, "uib", !!window["uibuilder"]);
+    /** Mini jQuery-like shadow dom selector (see constructor) */
+    __publicField(this, "$");
+    this.shadow = this.attachShadow({ mode: "open", delegatesFocus: true });
+    this.$ = this.shadowRoot.querySelector.bind(this.shadowRoot);
+    this.css = document.createElement("link");
+    this.css.setAttribute("type", "text/css");
+    this.css.setAttribute("rel", "stylesheet");
+    this.css.setAttribute("href", "./index.css");
+    this.dispatchEvent(new Event("uib-var:construction", { bubbles: true, composed: true }));
+  }
+  // Makes HTML attribute change watched
+  static get observedAttributes() {
+    return _UibVar.props;
+  }
+  /** Handle watched attributes
+   * NOTE: On initial startup, this is called for each watched attrib set in HTML - BEFORE connectedCallback is called.
+   * Attribute values can only ever be strings
+   * @param {string} attrib The name of the attribute that is changing
+   * @param {string} newVal The new value of the attribute
+   * @param {string} oldVal The old value of the attribute
+   */
+  attributeChangedCallback(attrib, oldVal, newVal) {
+    if (oldVal === newVal)
+      return;
+    switch (attrib) {
+      case "variable": {
+        if (newVal === "")
+          throw new Error('[uib-var] Attribute "variable" MUST be set to a UIBUILDER managed variable name');
+        this.variable = newVal;
+        this.doWatch();
+        break;
+      }
+      case "undefined": {
+        if (newVal === "" || ["on", "true", "report"].includes(newVal.toLowerCase()))
+          this.undef = true;
+        else
+          this.undef = false;
+        break;
+      }
+      case "report": {
+        if (newVal === "" || ["on", "true", "report"].includes(newVal.toLowerCase()))
+          this.report = true;
+        else
+          this.report = false;
+        break;
+      }
+      case "type": {
+        if (newVal === "" || !this.types.includes(newVal.toLowerCase()))
+          this.type = "plain";
+        else
+          this.type = newVal;
+        break;
+      }
+      case "topic": {
+        if (!newVal)
+          break;
+        if (!this.uib)
+          break;
+        if (this.variable) {
+          console.warn("\u26A0\uFE0F [uib-var] Cannot process both variable and topic attributes, use only 1. Using variable");
+          break;
+        }
+        this.topic = newVal;
+        if (this.topicMonitors[newVal])
+          uibuilder.cancelTopic(newVal, this.topicMonitors[newVal]);
+        this.topicMonitors[newVal] = uibuilder.onTopic(newVal, (msg) => {
+          this.value = msg.payload;
+          this.varDom();
+          if (this.report === true)
+            window["uibuilder"].send({ topic: this.variable, payload: this.value || void 0 });
+        });
+        this.varDom();
+        break;
+      }
+      case "filter": {
+        this.filter = void 0;
+        this.filterArgs = [];
+        if (!newVal)
+          break;
+        this.filter = newVal;
+        newVal = newVal.slice(0, 127);
+        const f = newVal.replace(/\s/g, "").match(/([a-zA-Z_$][a-zA-Z_$0-9.-]+)(\((.*)\))?/);
+        if (!f) {
+          console.warn(`\u26A0\uFE0F [uib-var] Filter function "${newVal}" invalid. Cannot process.`);
+          break;
+        }
+        this.filter = f[1];
+        if (f[3]) {
+          try {
+            this.filterArgs = JSON.parse(f[3]);
+          } catch (e) {
+          }
+          this.filterArgs = f[3].split(",").map((x) => {
+            x = x.trim();
+            if (isNaN(x)) {
+              let y = x.replace(/^["'`]/, "").replace(/["'`]$/, "");
+              try {
+                y = new Function(`return ${y}`)();
+              } catch (e) {
+              }
+              return y;
+            }
+            return Number(x);
+          });
+        }
+        if (!this.variable && !this.topic)
+          this.varDom(false);
+        break;
+      }
+      default: {
+        this[attrib] = newVal;
+        break;
+      }
+    }
+  }
+  // --- end of attributeChangedCallback --- //
+  // Runs when an instance is added to the DOM
+  connectedCallback() {
+    if (!this.id) {
+      if (!this.name)
+        this.name = this.getAttribute("name");
+      if (this.name)
+        this.id = this.name.toLowerCase().replace(/\s/g, "_");
+      else
+        this.id = `uib-var-${++_UibVar._iCount}`;
+    }
+  }
+  // ---- end of connectedCallback ---- //
+  // Runs when an instance is removed from the DOM
+  disconnectedCallback() {
+    if (this.uib) {
+      Object.keys(this.topicMonitors).forEach((topic) => {
+        uibuilder.cancelTopic(topic, this.topicMonitors[topic]);
+      });
+    }
+  }
+  // ---- end of disconnectedCallback ---- //
+  /** Process changes to the required uibuilder variable */
+  doWatch() {
+    if (!this.variable)
+      throw new Error("No variable name provided");
+    this.value = window["uibuilder"].get(this.variable);
+    this.varDom();
+    window["uibuilder"].onChange(this.variable, (val) => {
+      this.value = val;
+      this.varDom();
+      if (this.report === true)
+        window["uibuilder"].send({ topic: this.variable, payload: this.value || void 0 });
+    });
+  }
+  /** Convert this.value to DOM output (applies output filter if needed)
+   * @param {boolean} chkVal If true (default), check for undefined value. False used to run filter even with no value set.
+   */
+  varDom(chkVal = true) {
+    if (chkVal === true && !this.value && this.undef !== true) {
+      this.shadow.innerHTML = "<slot></slot>";
+      return;
+    }
+    const val = chkVal ? this.doFilter(this.value) : this.doFilter();
+    let out = val;
+    switch (this.type) {
+      case "markdown": {
+        if (this.uib)
+          out = window["uibuilder"].convertMarkdown(val);
+        break;
+      }
+      case "object": {
+        out = `<pre class="syntax-highlight">${this.uib ? window["uibuilder"].syntaxHighlight(val) : val}</pre>`;
+        break;
+      }
+      case "plain":
+      case "html":
+      default: {
+        const t = typeof val;
+        if (Array.isArray(val) || t === "[object Object]" || t === "object") {
+          try {
+            out = JSON.stringify(val);
+          } catch (e) {
+          }
+        }
+        break;
+      }
+    }
+    if (this.uib)
+      this.shadow.innerHTML = window["uibuilder"].sanitiseHTML(out);
+    else
+      this.shadow.innerHTML = out;
+    this.shadow.appendChild(this.css);
+  }
+  /** Apply value filter if specified
+   * @param {*} value The value to change
+   * @returns {*} The amended value that will be displayed
+   */
+  doFilter(value2) {
+    if (this.filter) {
+      const splitFilter = this.filter.split(".");
+      let globalFn = globalThis[splitFilter[0]];
+      if (globalFn && splitFilter.length > 1) {
+        const parts2 = [splitFilter.pop()];
+        parts2.forEach((part) => {
+          globalFn = globalFn[part];
+        });
+      }
+      if (!globalFn && this.uib === true)
+        globalFn = globalThis["uibuilder"][splitFilter[0]];
+      if (globalFn && typeof globalFn !== "function")
+        globalFn = void 0;
+      if (globalFn) {
+        const argList = value2 === void 0 ? [...this.filterArgs] : [value2, ...this.filterArgs];
+        value2 = Reflect.apply(globalFn, value2 ?? globalFn, argList);
+      } else {
+        console.warn(`\u26A0\uFE0F [uib-var] Filter function "${this.filter}" ${typeof globalFn === "object" ? "is an object not a function" : "not found"}`);
+      }
+    }
+    return value2;
+  }
+};
+/** Holds a count of how many instances of this component are on the page */
+__publicField(_UibVar, "_iCount", 0);
+/** @type {Array<string>} List of all of the html attribs (props) listened to */
+__publicField(_UibVar, "props", ["filter", "id", "name", "report", "topic", "type", "undefined", "variable"]);
+var UibVar = _UibVar;
+
 // src/front-end-module/uibuilder.module.js
 var version = "6.8.0-esm";
 var isMinified = !/param/.test(function(param) {
@@ -4716,7 +4821,6 @@ function syntaxHighlight(json) {
 var _ui = new import_ui.default(window, log, syntaxHighlight);
 var _a, _pingInterval, _propChangeCallbacks, _msgRecvdByTopicCallbacks, _timerid, _MsgHandler, _isShowMsg, _isShowStatus, _sendUrlHash, _extCommands, _managedVars, _showStatus, _uiObservers;
 var Uib = (_a = class {
-  // ---- End of ioSetup ---- //
   //#endregion -------- ------------ -------- //
   //#region ------- Class construction & startup method -------- //
   constructor() {
@@ -5403,6 +5507,36 @@ var Uib = (_a = class {
       window.location.href = url2;
     return window.location;
   }
+  /** Format a number using the INTL standard library - compatible with uib-var filter function
+   * @param {number} value Number to format
+   * @param {number} decimalPlaces Number of decimal places to include. Default=no default
+   * @param {string} intl standard locale spec, e.g. "ja-JP" or "en-GB". Default=navigator.language
+   * @param {object} opts INTL library options object. Optional
+   * @returns {string} formatted number
+   * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/toLocaleString
+   */
+  formatNumber(value2, decimalPlaces, intl, opts) {
+    if (isNaN(value2)) {
+      log("error", "formatNumber", `Value must be a number. Value type: "${typeof value2}"`)();
+      return "NaN";
+    }
+    if (!opts)
+      opts = {};
+    if (!intl)
+      intl = navigator.language ? navigator.language : "en-GB";
+    if (decimalPlaces) {
+      opts.minimumFractionDigits = decimalPlaces;
+      opts.maximumFractionDigits = decimalPlaces;
+    }
+    let out;
+    try {
+      out = Number(value2).toLocaleString(intl, opts);
+    } catch (e) {
+      log("error", "formatNumber", `${e.message}. value=${value2}, dp=${decimalPlaces}, intl="${intl}", opts=${JSON.stringify(opts)}`)();
+      return "NaN";
+    }
+    return out;
+  }
   /** Converts markdown text input to HTML if the Markdown-IT library is loaded
    * Otherwise simply returns the text
    * @param {string} mdText The input markdown string
@@ -6328,6 +6462,23 @@ ${document.documentElement.outerHTML}`;
   send(msg, originator = "") {
     this._send(msg, this._ioChannels.client, originator);
   }
+  // ! TODO: Rooms do not auto-reconnect. Add tracking and update _onConnect
+  // NOTE: Rooms only understood by server not client so we have to use custom emits
+  //       They do not auto-reconnect
+  /** Send a msg to a pre-defined Socket.IO room
+   * @link https://socket.io/docs/v4/rooms/
+   * @param {string} room Name of a Socket.IO pre-defined room.
+   * @param {*} msg Message to send
+   */
+  sendRoom(room, msg) {
+    this._socket.emit("uib-room-send", room, msg);
+  }
+  joinRoom(room) {
+    this._socket.emit("uib-room-join", room);
+  }
+  leaveRoom(room) {
+    this._socket.emit("uib-room-leave", room);
+  }
   /** Send a control msg to NR
    * @param {object} msg Message to send
    */
@@ -6392,7 +6543,7 @@ ${document.documentElement.outerHTML}`;
       window.clearTimeout(__privateGet(this, _timerid));
     __privateSet(this, _timerid, window.setTimeout(() => {
       log("warn", "Uib:checkConnect:setTimeout", `Socket.IO reconnection attempt. Current delay: ${delay}. Depth: ${depth}`)();
-      this._socket.close();
+      this._socket.disconnect();
       this._socket.connect();
       __privateSet(this, _timerid, null);
       this._checkConnect(delay * factor, factor, depth++);
@@ -6439,6 +6590,7 @@ Namespace: ${this.ioNamespace}`)();
     this.socketOptions.path = this.ioPath;
     log("trace", "Uib:ioSetup", `About to create IO object. Transports: [${this.socketOptions.transports.join(", ")}]`)();
     this._socket = lookup2(this.ioNamespace, this.socketOptions);
+    this._connectGlobal();
     this._socket.on("connect", this._onConnect.bind(this));
     this._socket.on(this._ioChannels.server, this._stdMsgFromServer.bind(this));
     this._socket.on(this._ioChannels.control, this._ctrlMsgFromServer.bind(this));
@@ -6460,6 +6612,24 @@ Namespace: ${this.ioNamespace}`)();
     this._checkConnect();
     return true;
   }
+  // ---- End of ioSetup ---- //
+  /** Connect to global namespace & create global listener that updates the `globalMsg` var */
+  _connectGlobal() {
+    this._socketGlobal = lookup2("/", this.socketOptions);
+    this._socketGlobal.onAny((...args) => {
+      this.set("globalMsg", args.slice(0, -1));
+    });
+  }
+  /** Manually (re)connect socket.io */
+  connect() {
+    this._socket.connect();
+  }
+  /** Manually disconnect socket.io and stop any auto-reconnect timer */
+  disconnect() {
+    this._socket.disconnect();
+    if (__privateGet(this, _timerid))
+      window.clearTimeout(__privateGet(this, _timerid));
+  }
   /** Start up Socket.IO comms and listeners
    * This has to be done separately because if running from a web page in a sub-folder of src/dist, uibuilder cannot
    * necessarily work out the correct ioPath to use.
@@ -6543,14 +6713,14 @@ __publicField(_a, "_meta", {
   type: "module",
   displayName: "uibuilder"
 }), _a);
-var uibuilder = new Uib();
+var uibuilder2 = new Uib();
 if (!window["uibuilder"]) {
-  window["uibuilder"] = uibuilder;
+  window["uibuilder"] = uibuilder2;
 } else {
   log("error", "uibuilder.module.js", "`uibuilder` already assigned to window. Have you tried to load it more than once?");
 }
 if (!window["uib"]) {
-  window["uib"] = uibuilder;
+  window["uib"] = uibuilder2;
 } else {
   log("warn", "uibuilder.module.js", "`uib` shortcut already assigned to window.");
 }
@@ -6569,11 +6739,11 @@ if (!window["$ui"]) {
 } else {
   log("warn", "uibuilder.module.js", "Cannot allocate the global `$ui`, it is already in use. Use `uibuilder.$ui` or `uib.$ui` instead.");
 }
-var uibuilder_module_default = uibuilder;
-uibuilder.start();
+var uibuilder_module_default = uibuilder2;
+uibuilder2.start();
 customElements.define("uib-var", UibVar);
 export {
   Uib,
   uibuilder_module_default as default,
-  uibuilder
+  uibuilder2 as uibuilder
 };
diff --git a/front-end/uibuilder.esm.min.js b/front-end/uibuilder.esm.min.js
index 14305490..e160258c 100644
--- a/front-end/uibuilder.esm.min.js
+++ b/front-end/uibuilder.esm.min.js
@@ -1,2 +1,2 @@
-var _t=Object.create;var le=Object.defineProperty;var Et=Object.getOwnPropertyDescriptor;var Ct=Object.getOwnPropertyNames;var St=Object.getPrototypeOf,xt=Object.prototype.hasOwnProperty;var Ot=(s,e,t)=>e in s?le(s,e,{enumerable:!0,configurable:!0,writable:!0,value:t}):s[e]=t;var De=(s=>typeof require<"u"?require:typeof Proxy<"u"?new Proxy(s,{get:(e,t)=>(typeof require<"u"?require:e)[t]}):s)(function(s){if(typeof require<"u")return require.apply(this,arguments);throw Error('Dynamic require of "'+s+'" is not supported')});var Nt=(s,e)=>()=>(e||s((e={exports:{}}).exports,e),e.exports),Rt=(s,e)=>{for(var t in e)le(s,t,{get:e[t],enumerable:!0})},At=(s,e,t,i)=>{if(e&&typeof e=="object"||typeof e=="function")for(let r of Ct(e))!xt.call(s,r)&&r!==t&&le(s,r,{get:()=>e[r],enumerable:!(i=Et(e,r))||i.enumerable});return s};var Ee=(s,e,t)=>(t=s!=null?_t(St(s)):{},At(e||!s||!s.__esModule?le(t,"default",{value:s,enumerable:!0}):t,s));var l=(s,e,t)=>(Ot(s,typeof e!="symbol"?e+"":e,t),t),Be=(s,e,t)=>{if(!e.has(s))throw TypeError("Cannot "+t)};var d=(s,e,t)=>(Be(s,e,"read from private field"),t?t.call(s):e.get(s)),C=(s,e,t)=>{if(e.has(s))throw TypeError("Cannot add the same private member more than once");e instanceof WeakSet?e.add(s):e.set(s,t)},A=(s,e,t,i)=>(Be(s,e,"write to private field"),i?i.call(s,t):e.set(s,t),t);var qe=Nt((ii,Pe)=>{var f,$t=(f=class{constructor(e,t,i){l(this,"version","6.8.0-src");l(this,"sanitiseExtraTags",["uib-var"]);l(this,"sanitiseExtraAttribs",["variable","report","undefined"]);l(this,"window");if(e)this.window=e;else throw new Error("Ui:constructor. 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e=this.transports[0];this.readyState="opening";try{e=this.createTransport(e)}catch{this.transports.shift(),this.open();return}e.open(),this.setTransport(e)}setTransport(e){this.transport&&this.transport.removeAllListeners(),this.transport=e,e.on("drain",this.onDrain.bind(this)).on("packet",this.onPacket.bind(this)).on("error",this.onError.bind(this)).on("close",t=>this.onClose("transport close",t))}probe(e){let t=this.createTransport(e),i=!1;s.priorWebsocketSuccess=!1;let r=()=>{i||(t.send([{type:"ping",data:"probe"}]),t.once("packet",x=>{if(!i)if(x.type==="pong"&&x.data==="probe"){if(this.upgrading=!0,this.emitReserved("upgrading",t),!t)return;s.priorWebsocketSuccess=t.name==="websocket",this.transport.pause(()=>{i||this.readyState!=="closed"&&(y(),this.setTransport(t),t.send([{type:"upgrade"}]),this.emitReserved("upgrade",t),t=null,this.upgrading=!1,this.flush())})}else{let k=new Error("probe error");k.transport=t.name,this.emitReserved("upgradeError",k)}}))};function n(){i||(i=!0,y(),t.close(),t=null)}let o=x=>{let k=new Error("probe error: "+x);k.transport=t.name,n(),this.emitReserved("upgradeError",k)};function c(){o("transport closed")}function h(){o("socket closed")}function u(x){t&&x.name!==t.name&&n()}let y=()=>{t.removeListener("open",r),t.removeListener("error",o),t.removeListener("close",c),this.off("close",h),this.off("upgrading",u)};t.once("open",r),t.once("error",o),t.once("close",c),this.once("close",h),this.once("upgrading",u),this.upgrades.indexOf("webtransport")!==-1&&e!=="webtransport"?this.setTimeoutFn(()=>{i||t.open()},200):t.open()}onOpen(){if(this.readyState="open",s.priorWebsocketSuccess=this.transport.name==="websocket",this.emitReserved("open"),this.flush(),this.readyState==="open"&&this.opts.upgrade){let e=0,t=this.upgrades.length;for(;e<t;e++)this.probe(this.upgrades[e])}}onPacket(e){if(this.readyState==="opening"||this.readyState==="open"||this.readyState==="closing")switch(this.emitReserved("packet",e),this.emitReserved("heartbeat"),this.resetPingTimeout(),e.type){case"open":this.onHandshake(JSON.parse(e.data));break;case"ping":this.sendPacket("pong"),this.emitReserved("ping"),this.emitReserved("pong");break;case"error":let t=new Error("server error");t.code=e.data,this.onError(t);break;case"message":this.emitReserved("data",e.data),this.emitReserved("message",e.data);break}}onHandshake(e){this.emitReserved("handshake",e),this.id=e.sid,this.transport.query.sid=e.sid,this.upgrades=this.filterUpgrades(e.upgrades),this.pingInterval=e.pingInterval,this.pingTimeout=e.pingTimeout,this.maxPayload=e.maxPayload,this.onOpen(),this.readyState!=="closed"&&this.resetPingTimeout()}resetPingTimeout(){this.clearTimeoutFn(this.pingTimeoutTimer),this.pingTimeoutTimer=this.setTimeoutFn(()=>{this.onClose("ping timeout")},this.pingInterval+this.pingTimeout),this.opts.autoUnref&&this.pingTimeoutTimer.unref()}onDrain(){this.writeBuffer.splice(0,this.prevBufferLen),this.prevBufferLen=0,this.writeBuffer.length===0?this.emitReserved("drain"):this.flush()}flush(){if(this.readyState!=="closed"&&this.transport.writable&&!this.upgrading&&this.writeBuffer.length){let e=this.getWritablePackets();this.transport.send(e),this.prevBufferLen=e.length,this.emitReserved("flush")}}getWritablePackets(){if(!(this.maxPayload&&this.transport.name==="polling"&&this.writeBuffer.length>1))return this.writeBuffer;let t=1;for(let i=0;i<this.writeBuffer.length;i++){let r=this.writeBuffer[i].data;if(r&&(t+=tt(r)),i>0&&t>this.maxPayload)return this.writeBuffer.slice(0,i);t+=2}return this.writeBuffer}write(e,t,i){return this.sendPacket("message",e,t,i),this}send(e,t,i){return this.sendPacket("message",e,t,i),this}sendPacket(e,t,i,r){if(typeof t=="function"&&(r=t,t=void 0),typeof i=="function"&&(r=i,i=null),this.readyState==="closing"||this.readyState==="closed")return;i=i||{},i.compress=i.compress!==!1;let n={type:e,data:t,options:i};this.emitReserved("packetCreate",n),this.writeBuffer.push(n),r&&this.once("flush",r),this.flush()}close(){let e=()=>{this.onClose("forced close"),this.transport.close()},t=()=>{this.off("upgrade",t),this.off("upgradeError",t),e()},i=()=>{this.once("upgrade",t),this.once("upgradeError",t)};return(this.readyState==="opening"||this.readyState==="open")&&(this.readyState="closing",this.writeBuffer.length?this.once("drain",()=>{this.upgrading?i():e()}):this.upgrading?i():e()),this}onError(e){s.priorWebsocketSuccess=!1,this.emitReserved("error",e),this.onClose("transport error",e)}onClose(e,t){(this.readyState==="opening"||this.readyState==="open"||this.readyState==="closing")&&(this.clearTimeoutFn(this.pingTimeoutTimer),this.transport.removeAllListeners("close"),this.transport.close(),this.transport.removeAllListeners(),typeof removeEventListener=="function"&&(removeEventListener("beforeunload",this.beforeunloadEventListener,!1),removeEventListener("offline",this.offlineEventListener,!1)),this.readyState="closed",this.id=null,this.emitReserved("close",e,t),this.writeBuffer=[],this.prevBufferLen=0)}filterUpgrades(e){let t=[],i=0,r=e.length;for(;i<r;i++)~this.transports.indexOf(e[i])&&t.push(e[i]);return t}};B.protocol=xe;var fs=B.protocol;function ft(s,e="",t){let i=s;t=t||typeof location<"u"&&location,s==null&&(s=t.protocol+"//"+t.host),typeof s=="string"&&(s.charAt(0)==="/"&&(s.charAt(1)==="/"?s=t.protocol+s:s=t.host+s),/^(https?|wss?):\/\//.test(s)||(typeof t<"u"?s=t.protocol+"//"+s:s="https://"+s),i=j(s)),i.port||(/^(http|ws)$/.test(i.protocol)?i.port="80":/^(http|ws)s$/.test(i.protocol)&&(i.port="443")),i.path=i.path||"/";let n=i.host.indexOf(":")!==-1?"["+i.host+"]":i.host;return i.id=i.protocol+"://"+n+":"+i.port+e,i.href=i.protocol+"://"+n+(t&&t.port===i.port?"":":"+i.port),i}var Ie={};Rt(Ie,{Decoder:()=>Le,Encoder:()=>Te,PacketType:()=>p,protocol:()=>bt});var Kt=typeof ArrayBuffer=="function",Jt=s=>typeof ArrayBuffer.isView=="function"?ArrayBuffer.isView(s):s.buffer instanceof ArrayBuffer,pt=Object.prototype.toString,zt=typeof Blob=="function"||typeof Blob<"u"&&pt.call(Blob)==="[object BlobConstructor]",Yt=typeof File=="function"||typeof File<"u"&&pt.call(File)==="[object FileConstructor]";function re(s){return Kt&&(s instanceof ArrayBuffer||Jt(s))||zt&&s instanceof Blob||Yt&&s instanceof File}function se(s,e){if(!s||typeof s!="object")return!1;if(Array.isArray(s)){for(let t=0,i=s.length;t<i;t++)if(se(s[t]))return!0;return!1}if(re(s))return!0;if(s.toJSON&&typeof s.toJSON=="function"&&arguments.length===1)return se(s.toJSON(),!0);for(let t in s)if(Object.prototype.hasOwnProperty.call(s,t)&&se(s[t]))return!0;return!1}function mt(s){let e=[],t=s.data,i=s;return i.data=Ae(t,e),i.attachments=e.length,{packet:i,buffers:e}}function Ae(s,e){if(!s)return s;if(re(s)){let t={_placeholder:!0,num:e.length};return e.push(s),t}else if(Array.isArray(s)){let t=new Array(s.length);for(let i=0;i<s.length;i++)t[i]=Ae(s[i],e);return t}else if(typeof s=="object"&&!(s instanceof Date)){let t={};for(let i in s)Object.prototype.hasOwnProperty.call(s,i)&&(t[i]=Ae(s[i],e));return t}return s}function gt(s,e){return s.data=$e(s.data,e),delete s.attachments,s}function $e(s,e){if(!s)return s;if(s&&s._placeholder===!0){if(typeof s.num=="number"&&s.num>=0&&s.num<e.length)return e[s.num];throw new Error("illegal attachments")}else if(Array.isArray(s))for(let t=0;t<s.length;t++)s[t]=$e(s[t],e);else if(typeof s=="object")for(let t in s)Object.prototype.hasOwnProperty.call(s,t)&&(s[t]=$e(s[t],e));return s}var Gt=["connect","connect_error","disconnect","disconnecting","newListener","removeListener"],bt=5,p;(function(s){s[s.CONNECT=0]="CONNECT",s[s.DISCONNECT=1]="DISCONNECT",s[s.EVENT=2]="EVENT",s[s.ACK=3]="ACK",s[s.CONNECT_ERROR=4]="CONNECT_ERROR",s[s.BINARY_EVENT=5]="BINARY_EVENT",s[s.BINARY_ACK=6]="BINARY_ACK"})(p||(p={}));var Te=class{constructor(e){this.replacer=e}encode(e){return(e.type===p.EVENT||e.type===p.ACK)&&se(e)?this.encodeAsBinary({type:e.type===p.EVENT?p.BINARY_EVENT:p.BINARY_ACK,nsp:e.nsp,data:e.data,id:e.id}):[this.encodeAsString(e)]}encodeAsString(e){let t=""+e.type;return(e.type===p.BINARY_EVENT||e.type===p.BINARY_ACK)&&(t+=e.attachments+"-"),e.nsp&&e.nsp!=="/"&&(t+=e.nsp+","),e.id!=null&&(t+=e.id),e.data!=null&&(t+=JSON.stringify(e.data,this.replacer)),t}encodeAsBinary(e){let t=mt(e),i=this.encodeAsString(t.packet),r=t.buffers;return r.unshift(i),r}};function yt(s){return Object.prototype.toString.call(s)==="[object Object]"}var Le=class s extends b{constructor(e){super(),this.reviver=e}add(e){let t;if(typeof e=="string"){if(this.reconstructor)throw new Error("got plaintext data when reconstructing a packet");t=this.decodeString(e);let i=t.type===p.BINARY_EVENT;i||t.type===p.BINARY_ACK?(t.type=i?p.EVENT:p.ACK,this.reconstructor=new Ue(t),t.attachments===0&&super.emitReserved("decoded",t)):super.emitReserved("decoded",t)}else if(re(e)||e.base64)if(this.reconstructor)t=this.reconstructor.takeBinaryData(e),t&&(this.reconstructor=null,super.emitReserved("decoded",t));else throw new Error("got binary data when not reconstructing a packet");else throw new Error("Unknown type: "+e)}decodeString(e){let t=0,i={type:Number(e.charAt(0))};if(p[i.type]===void 0)throw new Error("unknown packet type "+i.type);if(i.type===p.BINARY_EVENT||i.type===p.BINARY_ACK){let n=t+1;for(;e.charAt(++t)!=="-"&&t!=e.length;);let o=e.substring(n,t);if(o!=Number(o)||e.charAt(t)!=="-")throw new Error("Illegal attachments");i.attachments=Number(o)}if(e.charAt(t+1)==="/"){let n=t+1;for(;++t&&!(e.charAt(t)===","||t===e.length););i.nsp=e.substring(n,t)}else i.nsp="/";let r=e.charAt(t+1);if(r!==""&&Number(r)==r){let n=t+1;for(;++t;){let o=e.charAt(t);if(o==null||Number(o)!=o){--t;break}if(t===e.length)break}i.id=Number(e.substring(n,t+1))}if(e.charAt(++t)){let n=this.tryParse(e.substr(t));if(s.isPayloadValid(i.type,n))i.data=n;else throw new Error("invalid payload")}return i}tryParse(e){try{return JSON.parse(e,this.reviver)}catch{return!1}}static isPayloadValid(e,t){switch(e){case p.CONNECT:return yt(t);case p.DISCONNECT:return t===void 0;case p.CONNECT_ERROR:return typeof t=="string"||yt(t);case p.EVENT:case p.BINARY_EVENT:return Array.isArray(t)&&(typeof t[0]=="number"||typeof t[0]=="string"&&Gt.indexOf(t[0])===-1);case p.ACK:case p.BINARY_ACK:return Array.isArray(t)}}destroy(){this.reconstructor&&(this.reconstructor.finishedReconstruction(),this.reconstructor=null)}},Ue=class{constructor(e){this.packet=e,this.buffers=[],this.reconPack=e}takeBinaryData(e){if(this.buffers.push(e),this.buffers.length===this.reconPack.attachments){let t=gt(this.reconPack,this.buffers);return this.finishedReconstruction(),t}return null}finishedReconstruction(){this.reconPack=null,this.buffers=[]}};function S(s,e,t){return s.on(e,t),function(){s.off(e,t)}}var Xt=Object.freeze({connect:1,connect_error:1,disconnect:1,disconnecting:1,newListener:1,removeListener:1}),W=class extends b{constructor(e,t,i){super(),this.connected=!1,this.recovered=!1,this.receiveBuffer=[],this.sendBuffer=[],this._queue=[],this._queueSeq=0,this.ids=0,this.acks={},this.flags={},this.io=e,this.nsp=t,i&&i.auth&&(this.auth=i.auth),this._opts=Object.assign({},i),this.io._autoConnect&&this.open()}get disconnected(){return!this.connected}subEvents(){if(this.subs)return;let e=this.io;this.subs=[S(e,"open",this.onopen.bind(this)),S(e,"packet",this.onpacket.bind(this)),S(e,"error",this.onerror.bind(this)),S(e,"close",this.onclose.bind(this))]}get active(){return!!this.subs}connect(){return this.connected?this:(this.subEvents(),this.io._reconnecting||this.io.open(),this.io._readyState==="open"&&this.onopen(),this)}open(){return this.connect()}send(...e){return e.unshift("message"),this.emit.apply(this,e),this}emit(e,...t){if(Xt.hasOwnProperty(e))throw new Error('"'+e.toString()+'" is a reserved event name');if(t.unshift(e),this._opts.retries&&!this.flags.fromQueue&&!this.flags.volatile)return this._addToQueue(t),this;let i={type:p.EVENT,data:t};if(i.options={},i.options.compress=this.flags.compress!==!1,typeof t[t.length-1]=="function"){let o=this.ids++,c=t.pop();this._registerAckCallback(o,c),i.id=o}let r=this.io.engine&&this.io.engine.transport&&this.io.engine.transport.writable;return this.flags.volatile&&(!r||!this.connected)||(this.connected?(this.notifyOutgoingListeners(i),this.packet(i)):this.sendBuffer.push(i)),this.flags={},this}_registerAckCallback(e,t){var i;let r=(i=this.flags.timeout)!==null&&i!==void 0?i:this._opts.ackTimeout;if(r===void 0){this.acks[e]=t;return}let n=this.io.setTimeoutFn(()=>{delete this.acks[e];for(let o=0;o<this.sendBuffer.length;o++)this.sendBuffer[o].id===e&&this.sendBuffer.splice(o,1);t.call(this,new Error("operation has timed out"))},r);this.acks[e]=(...o)=>{this.io.clearTimeoutFn(n),t.apply(this,[null,...o])}}emitWithAck(e,...t){let i=this.flags.timeout!==void 0||this._opts.ackTimeout!==void 0;return new Promise((r,n)=>{t.push((o,c)=>i?o?n(o):r(c):r(o)),this.emit(e,...t)})}_addToQueue(e){let t;typeof e[e.length-1]=="function"&&(t=e.pop());let i={id:this._queueSeq++,tryCount:0,pending:!1,args:e,flags:Object.assign({fromQueue:!0},this.flags)};e.push((r,...n)=>i!==this._queue[0]?void 0:(r!==null?i.tryCount>this._opts.retries&&(this._queue.shift(),t&&t(r)):(this._queue.shift(),t&&t(null,...n)),i.pending=!1,this._drainQueue())),this._queue.push(i),this._drainQueue()}_drainQueue(e=!1){if(!this.connected||this._queue.length===0)return;let t=this._queue[0];t.pending&&!e||(t.pending=!0,t.tryCount++,this.flags=t.flags,this.emit.apply(this,t.args))}packet(e){e.nsp=this.nsp,this.io._packet(e)}onopen(){typeof this.auth=="function"?this.auth(e=>{this._sendConnectPacket(e)}):this._sendConnectPacket(this.auth)}_sendConnectPacket(e){this.packet({type:p.CONNECT,data:this._pid?Object.assign({pid:this._pid,offset:this._lastOffset},e):e})}onerror(e){this.connected||this.emitReserved("connect_error",e)}onclose(e,t){this.connected=!1,delete this.id,this.emitReserved("disconnect",e,t)}onpacket(e){if(e.nsp===this.nsp)switch(e.type){case p.CONNECT:e.data&&e.data.sid?this.onconnect(e.data.sid,e.data.pid):this.emitReserved("connect_error",new Error("It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)"));break;case p.EVENT:case p.BINARY_EVENT:this.onevent(e);break;case p.ACK:case p.BINARY_ACK:this.onack(e);break;case p.DISCONNECT:this.ondisconnect();break;case p.CONNECT_ERROR:this.destroy();let i=new Error(e.data.message);i.data=e.data.data,this.emitReserved("connect_error",i);break}}onevent(e){let t=e.data||[];e.id!=null&&t.push(this.ack(e.id)),this.connected?this.emitEvent(t):this.receiveBuffer.push(Object.freeze(t))}emitEvent(e){if(this._anyListeners&&this._anyListeners.length){let t=this._anyListeners.slice();for(let i of t)i.apply(this,e)}super.emit.apply(this,e),this._pid&&e.length&&typeof e[e.length-1]=="string"&&(this._lastOffset=e[e.length-1])}ack(e){let t=this,i=!1;return function(...r){i||(i=!0,t.packet({type:p.ACK,id:e,data:r}))}}onack(e){let t=this.acks[e.id];typeof t=="function"&&(t.apply(this,e.data),delete this.acks[e.id])}onconnect(e,t){this.id=e,this.recovered=t&&this._pid===t,this._pid=t,this.connected=!0,this.emitBuffered(),this.emitReserved("connect"),this._drainQueue(!0)}emitBuffered(){this.receiveBuffer.forEach(e=>this.emitEvent(e)),this.receiveBuffer=[],this.sendBuffer.forEach(e=>{this.notifyOutgoingListeners(e),this.packet(e)}),this.sendBuffer=[]}ondisconnect(){this.destroy(),this.onclose("io server disconnect")}destroy(){this.subs&&(this.subs.forEach(e=>e()),this.subs=void 0),this.io._destroy(this)}disconnect(){return this.connected&&this.packet({type:p.DISCONNECT}),this.destroy(),this.connected&&this.onclose("io client disconnect"),this}close(){return this.disconnect()}compress(e){return this.flags.compress=e,this}get volatile(){return this.flags.volatile=!0,this}timeout(e){return this.flags.timeout=e,this}onAny(e){return this._anyListeners=this._anyListeners||[],this._anyListeners.push(e),this}prependAny(e){return this._anyListeners=this._anyListeners||[],this._anyListeners.unshift(e),this}offAny(e){if(!this._anyListeners)return this;if(e){let t=this._anyListeners;for(let i=0;i<t.length;i++)if(e===t[i])return t.splice(i,1),this}else this._anyListeners=[];return this}listenersAny(){return this._anyListeners||[]}onAnyOutgoing(e){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.push(e),this}prependAnyOutgoing(e){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.unshift(e),this}offAnyOutgoing(e){if(!this._anyOutgoingListeners)return this;if(e){let t=this._anyOutgoingListeners;for(let i=0;i<t.length;i++)if(e===t[i])return t.splice(i,1),this}else this._anyOutgoingListeners=[];return this}listenersAnyOutgoing(){return this._anyOutgoingListeners||[]}notifyOutgoingListeners(e){if(this._anyOutgoingListeners&&this._anyOutgoingListeners.length){let t=this._anyOutgoingListeners.slice();for(let i of t)i.apply(this,e.data)}}};function P(s){s=s||{},this.ms=s.min||100,this.max=s.max||1e4,this.factor=s.factor||2,this.jitter=s.jitter>0&&s.jitter<=1?s.jitter:0,this.attempts=0}P.prototype.duration=function(){var s=this.ms*Math.pow(this.factor,this.attempts++);if(this.jitter){var e=Math.random(),t=Math.floor(e*this.jitter*s);s=Math.floor(e*10)&1?s+t:s-t}return Math.min(s,this.max)|0};P.prototype.reset=function(){this.attempts=0};P.prototype.setMin=function(s){this.ms=s};P.prototype.setMax=function(s){this.max=s};P.prototype.setJitter=function(s){this.jitter=s};var K=class extends b{constructor(e,t){var i;super(),this.nsps={},this.subs=[],e&&typeof e=="object"&&(t=e,e=void 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n(){i||(i=!0,g(),t.close(),t=null)}let o=x=>{let _=new Error("probe error: "+x);_.transport=t.name,n(),this.emitReserved("upgradeError",_)};function c(){o("transport closed")}function h(){o("socket closed")}function d(x){t&&x.name!==t.name&&n()}let g=()=>{t.removeListener("open",r),t.removeListener("error",o),t.removeListener("close",c),this.off("close",h),this.off("upgrading",d)};t.once("open",r),t.once("error",o),t.once("close",c),this.once("close",h),this.once("upgrading",d),this.upgrades.indexOf("webtransport")!==-1&&e!=="webtransport"?this.setTimeoutFn(()=>{i||t.open()},200):t.open()}onOpen(){if(this.readyState="open",s.priorWebsocketSuccess=this.transport.name==="websocket",this.emitReserved("open"),this.flush(),this.readyState==="open"&&this.opts.upgrade){let 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error");t.code=e.data,this.onError(t);break;case"message":this.emitReserved("data",e.data),this.emitReserved("message",e.data);break}}onHandshake(e){this.emitReserved("handshake",e),this.id=e.sid,this.transport.query.sid=e.sid,this.upgrades=this.filterUpgrades(e.upgrades),this.pingInterval=e.pingInterval,this.pingTimeout=e.pingTimeout,this.maxPayload=e.maxPayload,this.onOpen(),this.readyState!=="closed"&&this.resetPingTimeout()}resetPingTimeout(){this.clearTimeoutFn(this.pingTimeoutTimer),this.pingTimeoutTimer=this.setTimeoutFn(()=>{this.onClose("ping timeout")},this.pingInterval+this.pingTimeout),this.opts.autoUnref&&this.pingTimeoutTimer.unref()}onDrain(){this.writeBuffer.splice(0,this.prevBufferLen),this.prevBufferLen=0,this.writeBuffer.length===0?this.emitReserved("drain"):this.flush()}flush(){if(this.readyState!=="closed"&&this.transport.writable&&!this.upgrading&&this.writeBuffer.length){let e=this.getWritablePackets();this.transport.send(e),this.prevBufferLen=e.length,this.emitReserved("flush")}}getWritablePackets(){if(!(this.maxPayload&&this.transport.name==="polling"&&this.writeBuffer.length>1))return this.writeBuffer;let t=1;for(let i=0;i<this.writeBuffer.length;i++){let r=this.writeBuffer[i].data;if(r&&(t+=tt(r)),i>0&&t>this.maxPayload)return this.writeBuffer.slice(0,i);t+=2}return this.writeBuffer}write(e,t,i){return this.sendPacket("message",e,t,i),this}send(e,t,i){return this.sendPacket("message",e,t,i),this}sendPacket(e,t,i,r){if(typeof t=="function"&&(r=t,t=void 0),typeof i=="function"&&(r=i,i=null),this.readyState==="closing"||this.readyState==="closed")return;i=i||{},i.compress=i.compress!==!1;let n={type:e,data:t,options:i};this.emitReserved("packetCreate",n),this.writeBuffer.push(n),r&&this.once("flush",r),this.flush()}close(){let e=()=>{this.onClose("forced close"),this.transport.close()},t=()=>{this.off("upgrade",t),this.off("upgradeError",t),e()},i=()=>{this.once("upgrade",t),this.once("upgradeError",t)};return(this.readyState==="opening"||this.readyState==="open")&&(this.readyState="closing",this.writeBuffer.length?this.once("drain",()=>{this.upgrading?i():e()}):this.upgrading?i():e()),this}onError(e){s.priorWebsocketSuccess=!1,this.emitReserved("error",e),this.onClose("transport error",e)}onClose(e,t){(this.readyState==="opening"||this.readyState==="open"||this.readyState==="closing")&&(this.clearTimeoutFn(this.pingTimeoutTimer),this.transport.removeAllListeners("close"),this.transport.close(),this.transport.removeAllListeners(),typeof removeEventListener=="function"&&(removeEventListener("beforeunload",this.beforeunloadEventListener,!1),removeEventListener("offline",this.offlineEventListener,!1)),this.readyState="closed",this.id=null,this.emitReserved("close",e,t),this.writeBuffer=[],this.prevBufferLen=0)}filterUpgrades(e){let t=[],i=0,r=e.length;for(;i<r;i++)~this.transports.indexOf(e[i])&&t.push(e[i]);return t}};B.protocol=xe;var us=B.protocol;function ft(s,e="",t){let i=s;t=t||typeof location<"u"&&location,s==null&&(s=t.protocol+"//"+t.host),typeof s=="string"&&(s.charAt(0)==="/"&&(s.charAt(1)==="/"?s=t.protocol+s:s=t.host+s),/^(https?|wss?):\/\//.test(s)||(typeof t<"u"?s=t.protocol+"//"+s:s="https://"+s),i=j(s)),i.port||(/^(http|ws)$/.test(i.protocol)?i.port="80":/^(http|ws)s$/.test(i.protocol)&&(i.port="443")),i.path=i.path||"/";let n=i.host.indexOf(":")!==-1?"["+i.host+"]":i.host;return i.id=i.protocol+"://"+n+":"+i.port+e,i.href=i.protocol+"://"+n+(t&&t.port===i.port?"":":"+i.port),i}var Ie={};Rt(Ie,{Decoder:()=>Le,Encoder:()=>Te,PacketType:()=>p,protocol:()=>yt});var Kt=typeof ArrayBuffer=="function",Jt=s=>typeof ArrayBuffer.isView=="function"?ArrayBuffer.isView(s):s.buffer instanceof ArrayBuffer,pt=Object.prototype.toString,zt=typeof Blob=="function"||typeof Blob<"u"&&pt.call(Blob)==="[object BlobConstructor]",Gt=typeof File=="function"||typeof File<"u"&&pt.call(File)==="[object FileConstructor]";function se(s){return Kt&&(s instanceof ArrayBuffer||Jt(s))||zt&&s instanceof Blob||Gt&&s instanceof File}function ie(s,e){if(!s||typeof s!="object")return!1;if(Array.isArray(s)){for(let t=0,i=s.length;t<i;t++)if(ie(s[t]))return!0;return!1}if(se(s))return!0;if(s.toJSON&&typeof s.toJSON=="function"&&arguments.length===1)return ie(s.toJSON(),!0);for(let t in s)if(Object.prototype.hasOwnProperty.call(s,t)&&ie(s[t]))return!0;return!1}function mt(s){let e=[],t=s.data,i=s;return i.data=Ae(t,e),i.attachments=e.length,{packet:i,buffers:e}}function Ae(s,e){if(!s)return s;if(se(s)){let t={_placeholder:!0,num:e.length};return e.push(s),t}else if(Array.isArray(s)){let t=new Array(s.length);for(let i=0;i<s.length;i++)t[i]=Ae(s[i],e);return t}else if(typeof s=="object"&&!(s instanceof Date)){let t={};for(let i in s)Object.prototype.hasOwnProperty.call(s,i)&&(t[i]=Ae(s[i],e));return t}return s}function bt(s,e){return s.data=$e(s.data,e),delete s.attachments,s}function $e(s,e){if(!s)return s;if(s&&s._placeholder===!0){if(typeof s.num=="number"&&s.num>=0&&s.num<e.length)return e[s.num];throw new Error("illegal attachments")}else if(Array.isArray(s))for(let t=0;t<s.length;t++)s[t]=$e(s[t],e);else if(typeof s=="object")for(let t in s)Object.prototype.hasOwnProperty.call(s,t)&&(s[t]=$e(s[t],e));return s}var Yt=["connect","connect_error","disconnect","disconnecting","newListener","removeListener"],yt=5,p;(function(s){s[s.CONNECT=0]="CONNECT",s[s.DISCONNECT=1]="DISCONNECT",s[s.EVENT=2]="EVENT",s[s.ACK=3]="ACK",s[s.CONNECT_ERROR=4]="CONNECT_ERROR",s[s.BINARY_EVENT=5]="BINARY_EVENT",s[s.BINARY_ACK=6]="BINARY_ACK"})(p||(p={}));var Te=class{constructor(e){this.replacer=e}encode(e){return(e.type===p.EVENT||e.type===p.ACK)&&ie(e)?this.encodeAsBinary({type:e.type===p.EVENT?p.BINARY_EVENT:p.BINARY_ACK,nsp:e.nsp,data:e.data,id:e.id}):[this.encodeAsString(e)]}encodeAsString(e){let t=""+e.type;return(e.type===p.BINARY_EVENT||e.type===p.BINARY_ACK)&&(t+=e.attachments+"-"),e.nsp&&e.nsp!=="/"&&(t+=e.nsp+","),e.id!=null&&(t+=e.id),e.data!=null&&(t+=JSON.stringify(e.data,this.replacer)),t}encodeAsBinary(e){let t=mt(e),i=this.encodeAsString(t.packet),r=t.buffers;return r.unshift(i),r}};function gt(s){return Object.prototype.toString.call(s)==="[object Object]"}var Le=class s extends y{constructor(e){super(),this.reviver=e}add(e){let t;if(typeof e=="string"){if(this.reconstructor)throw new Error("got plaintext data when reconstructing a packet");t=this.decodeString(e);let i=t.type===p.BINARY_EVENT;i||t.type===p.BINARY_ACK?(t.type=i?p.EVENT:p.ACK,this.reconstructor=new Ue(t),t.attachments===0&&super.emitReserved("decoded",t)):super.emitReserved("decoded",t)}else if(se(e)||e.base64)if(this.reconstructor)t=this.reconstructor.takeBinaryData(e),t&&(this.reconstructor=null,super.emitReserved("decoded",t));else throw new Error("got binary data when not reconstructing a packet");else throw new Error("Unknown type: "+e)}decodeString(e){let t=0,i={type:Number(e.charAt(0))};if(p[i.type]===void 0)throw new Error("unknown packet type "+i.type);if(i.type===p.BINARY_EVENT||i.type===p.BINARY_ACK){let n=t+1;for(;e.charAt(++t)!=="-"&&t!=e.length;);let o=e.substring(n,t);if(o!=Number(o)||e.charAt(t)!=="-")throw new Error("Illegal attachments");i.attachments=Number(o)}if(e.charAt(t+1)==="/"){let n=t+1;for(;++t&&!(e.charAt(t)===","||t===e.length););i.nsp=e.substring(n,t)}else i.nsp="/";let r=e.charAt(t+1);if(r!==""&&Number(r)==r){let n=t+1;for(;++t;){let o=e.charAt(t);if(o==null||Number(o)!=o){--t;break}if(t===e.length)break}i.id=Number(e.substring(n,t+1))}if(e.charAt(++t)){let n=this.tryParse(e.substr(t));if(s.isPayloadValid(i.type,n))i.data=n;else throw new Error("invalid payload")}return i}tryParse(e){try{return JSON.parse(e,this.reviver)}catch{return!1}}static isPayloadValid(e,t){switch(e){case p.CONNECT:return gt(t);case p.DISCONNECT:return t===void 0;case p.CONNECT_ERROR:return typeof t=="string"||gt(t);case p.EVENT:case p.BINARY_EVENT:return Array.isArray(t)&&(typeof t[0]=="number"||typeof t[0]=="string"&&Yt.indexOf(t[0])===-1);case p.ACK:case p.BINARY_ACK:return Array.isArray(t)}}destroy(){this.reconstructor&&(this.reconstructor.finishedReconstruction(),this.reconstructor=null)}},Ue=class{constructor(e){this.packet=e,this.buffers=[],this.reconPack=e}takeBinaryData(e){if(this.buffers.push(e),this.buffers.length===this.reconPack.attachments){let t=bt(this.reconPack,this.buffers);return this.finishedReconstruction(),t}return null}finishedReconstruction(){this.reconPack=null,this.buffers=[]}};function S(s,e,t){return s.on(e,t),function(){s.off(e,t)}}var Xt=Object.freeze({connect:1,connect_error:1,disconnect:1,disconnecting:1,newListener:1,removeListener:1}),W=class extends y{constructor(e,t,i){super(),this.connected=!1,this.recovered=!1,this.receiveBuffer=[],this.sendBuffer=[],this._queue=[],this._queueSeq=0,this.ids=0,this.acks={},this.flags={},this.io=e,this.nsp=t,i&&i.auth&&(this.auth=i.auth),this._opts=Object.assign({},i),this.io._autoConnect&&this.open()}get disconnected(){return!this.connected}subEvents(){if(this.subs)return;let e=this.io;this.subs=[S(e,"open",this.onopen.bind(this)),S(e,"packet",this.onpacket.bind(this)),S(e,"error",this.onerror.bind(this)),S(e,"close",this.onclose.bind(this))]}get active(){return!!this.subs}connect(){return this.connected?this:(this.subEvents(),this.io._reconnecting||this.io.open(),this.io._readyState==="open"&&this.onopen(),this)}open(){return this.connect()}send(...e){return e.unshift("message"),this.emit.apply(this,e),this}emit(e,...t){if(Xt.hasOwnProperty(e))throw new Error('"'+e.toString()+'" is a reserved event name');if(t.unshift(e),this._opts.retries&&!this.flags.fromQueue&&!this.flags.volatile)return this._addToQueue(t),this;let i={type:p.EVENT,data:t};if(i.options={},i.options.compress=this.flags.compress!==!1,typeof t[t.length-1]=="function"){let o=this.ids++,c=t.pop();this._registerAckCallback(o,c),i.id=o}let r=this.io.engine&&this.io.engine.transport&&this.io.engine.transport.writable;return this.flags.volatile&&(!r||!this.connected)||(this.connected?(this.notifyOutgoingListeners(i),this.packet(i)):this.sendBuffer.push(i)),this.flags={},this}_registerAckCallback(e,t){var i;let r=(i=this.flags.timeout)!==null&&i!==void 0?i:this._opts.ackTimeout;if(r===void 0){this.acks[e]=t;return}let n=this.io.setTimeoutFn(()=>{delete this.acks[e];for(let o=0;o<this.sendBuffer.length;o++)this.sendBuffer[o].id===e&&this.sendBuffer.splice(o,1);t.call(this,new Error("operation has timed out"))},r);this.acks[e]=(...o)=>{this.io.clearTimeoutFn(n),t.apply(this,[null,...o])}}emitWithAck(e,...t){let i=this.flags.timeout!==void 0||this._opts.ackTimeout!==void 0;return new Promise((r,n)=>{t.push((o,c)=>i?o?n(o):r(c):r(o)),this.emit(e,...t)})}_addToQueue(e){let t;typeof e[e.length-1]=="function"&&(t=e.pop());let i={id:this._queueSeq++,tryCount:0,pending:!1,args:e,flags:Object.assign({fromQueue:!0},this.flags)};e.push((r,...n)=>i!==this._queue[0]?void 0:(r!==null?i.tryCount>this._opts.retries&&(this._queue.shift(),t&&t(r)):(this._queue.shift(),t&&t(null,...n)),i.pending=!1,this._drainQueue())),this._queue.push(i),this._drainQueue()}_drainQueue(e=!1){if(!this.connected||this._queue.length===0)return;let t=this._queue[0];t.pending&&!e||(t.pending=!0,t.tryCount++,this.flags=t.flags,this.emit.apply(this,t.args))}packet(e){e.nsp=this.nsp,this.io._packet(e)}onopen(){typeof this.auth=="function"?this.auth(e=>{this._sendConnectPacket(e)}):this._sendConnectPacket(this.auth)}_sendConnectPacket(e){this.packet({type:p.CONNECT,data:this._pid?Object.assign({pid:this._pid,offset:this._lastOffset},e):e})}onerror(e){this.connected||this.emitReserved("connect_error",e)}onclose(e,t){this.connected=!1,delete this.id,this.emitReserved("disconnect",e,t)}onpacket(e){if(e.nsp===this.nsp)switch(e.type){case p.CONNECT:e.data&&e.data.sid?this.onconnect(e.data.sid,e.data.pid):this.emitReserved("connect_error",new Error("It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)"));break;case p.EVENT:case p.BINARY_EVENT:this.onevent(e);break;case p.ACK:case p.BINARY_ACK:this.onack(e);break;case p.DISCONNECT:this.ondisconnect();break;case p.CONNECT_ERROR:this.destroy();let i=new Error(e.data.message);i.data=e.data.data,this.emitReserved("connect_error",i);break}}onevent(e){let t=e.data||[];e.id!=null&&t.push(this.ack(e.id)),this.connected?this.emitEvent(t):this.receiveBuffer.push(Object.freeze(t))}emitEvent(e){if(this._anyListeners&&this._anyListeners.length){let t=this._anyListeners.slice();for(let i of t)i.apply(this,e)}super.emit.apply(this,e),this._pid&&e.length&&typeof e[e.length-1]=="string"&&(this._lastOffset=e[e.length-1])}ack(e){let t=this,i=!1;return function(...r){i||(i=!0,t.packet({type:p.ACK,id:e,data:r}))}}onack(e){let t=this.acks[e.id];typeof t=="function"&&(t.apply(this,e.data),delete this.acks[e.id])}onconnect(e,t){this.id=e,this.recovered=t&&this._pid===t,this._pid=t,this.connected=!0,this.emitBuffered(),this.emitReserved("connect"),this._drainQueue(!0)}emitBuffered(){this.receiveBuffer.forEach(e=>this.emitEvent(e)),this.receiveBuffer=[],this.sendBuffer.forEach(e=>{this.notifyOutgoingListeners(e),this.packet(e)}),this.sendBuffer=[]}ondisconnect(){this.destroy(),this.onclose("io server disconnect")}destroy(){this.subs&&(this.subs.forEach(e=>e()),this.subs=void 0),this.io._destroy(this)}disconnect(){return this.connected&&this.packet({type:p.DISCONNECT}),this.destroy(),this.connected&&this.onclose("io client disconnect"),this}close(){return this.disconnect()}compress(e){return this.flags.compress=e,this}get volatile(){return this.flags.volatile=!0,this}timeout(e){return this.flags.timeout=e,this}onAny(e){return this._anyListeners=this._anyListeners||[],this._anyListeners.push(e),this}prependAny(e){return this._anyListeners=this._anyListeners||[],this._anyListeners.unshift(e),this}offAny(e){if(!this._anyListeners)return this;if(e){let t=this._anyListeners;for(let i=0;i<t.length;i++)if(e===t[i])return t.splice(i,1),this}else this._anyListeners=[];return this}listenersAny(){return this._anyListeners||[]}onAnyOutgoing(e){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.push(e),this}prependAnyOutgoing(e){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.unshift(e),this}offAnyOutgoing(e){if(!this._anyOutgoingListeners)return this;if(e){let t=this._anyOutgoingListeners;for(let i=0;i<t.length;i++)if(e===t[i])return t.splice(i,1),this}else this._anyOutgoingListeners=[];return this}listenersAnyOutgoing(){return this._anyOutgoingListeners||[]}notifyOutgoingListeners(e){if(this._anyOutgoingListeners&&this._anyOutgoingListeners.length){let t=this._anyOutgoingListeners.slice();for(let i of t)i.apply(this,e.data)}}};function P(s){s=s||{},this.ms=s.min||100,this.max=s.max||1e4,this.factor=s.factor||2,this.jitter=s.jitter>0&&s.jitter<=1?s.jitter:0,this.attempts=0}P.prototype.duration=function(){var s=this.ms*Math.pow(this.factor,this.attempts++);if(this.jitter){var e=Math.random(),t=Math.floor(e*this.jitter*s);s=Math.floor(e*10)&1?s+t:s-t}return Math.min(s,this.max)|0};P.prototype.reset=function(){this.attempts=0};P.prototype.setMin=function(s){this.ms=s};P.prototype.setMax=function(s){this.max=s};P.prototype.setJitter=function(s){this.jitter=s};var K=class extends y{constructor(e,t){var i;super(),this.nsps={},this.subs=[],e&&typeof e=="object"&&(t=e,e=void 0),t=t||{},t.path=t.path||"/socket.io",this.opts=t,T(this,t),this.reconnection(t.reconnection!==!1),this.reconnectionAttempts(t.reconnectionAttempts||1/0),this.reconnectionDelay(t.reconnectionDelay||1e3),this.reconnectionDelayMax(t.reconnectionDelayMax||5e3),this.randomizationFactor((i=t.randomizationFactor)!==null&&i!==void 0?i:.5),this.backoff=new P({min:this.reconnectionDelay(),max:this.reconnectionDelayMax(),jitter:this.randomizationFactor()}),this.timeout(t.timeout==null?2e4:t.timeout),this._readyState="closed",this.uri=e;let r=t.parser||Ie;this.encoder=new r.Encoder,this.decoder=new r.Decoder,this._autoConnect=t.autoConnect!==!1,this._autoConnect&&this.open()}reconnection(e){return arguments.length?(this._reconnection=!!e,this):this._reconnection}reconnectionAttempts(e){return e===void 0?this._reconnectionAttempts:(this._reconnectionAttempts=e,this)}reconnectionDelay(e){var t;return e===void 0?this._reconnectionDelay:(this._reconnectionDelay=e,(t=this.backoff)===null||t===void 0||t.setMin(e),this)}randomizationFactor(e){var t;return e===void 0?this._randomizationFactor:(this._randomizationFactor=e,(t=this.backoff)===null||t===void 0||t.setJitter(e),this)}reconnectionDelayMax(e){var t;return e===void 0?this._reconnectionDelayMax:(this._reconnectionDelayMax=e,(t=this.backoff)===null||t===void 0||t.setMax(e),this)}timeout(e){return arguments.length?(this._timeout=e,this):this._timeout}maybeReconnectOnOpen(){!this._reconnecting&&this._reconnection&&this.backoff.attempts===0&&this.reconnect()}open(e){if(~this._readyState.indexOf("open"))return this;this.engine=new B(this.uri,this.opts);let t=this.engine,i=this;this._readyState="opening",this.skipReconnect=!1;let r=S(t,"open",function(){i.onopen(),e&&e()}),n=c=>{this.cleanup(),this._readyState="closed",this.emitReserved("error",c),e?e(c):this.maybeReconnectOnOpen()},o=S(t,"error",n);if(this._timeout!==!1){let c=this._timeout,h=this.setTimeoutFn(()=>{r(),n(new 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Arg Type: ".concat(e.constructor.name),e)();return}e.preventDefault();let i=e.currentTarget,r={};Object.keys(i).forEach(b=>{b.startsWith("_")||(r[b]=i[b])});let n=["class","id","name"],o;try{o=Object.assign({},...Array.from(i.attributes,({name:b,value:_e})=>{if(!n.includes(b))return{[b]:_e}}))}catch{}let c,h=[];i.form&&(c={},c.valid=i.form.checkValidity(),Object.values(i.form).forEach((b,_e)=>{let V=b.id!==""?b.id:b.name!==""?b.name:"".concat(_e,"-").concat(b.type);if(V!==""&&b.type){if("checked"in b&&b.value==="on"&&(b.value=b.checked.toString()),h.push({key:V,val:b.value}),c[V]={id:b.id,name:b.name,value:b.value,valid:b.checkValidity(),type:b.type},c[V].valid===!1){let w=b.validity;c[V].validity={badInput:w.badInput===!0?w.badInput:void 0,customError:w.customError===!0?w.customError:void 0,patternMismatch:w.patternMismatch===!0?w.patternMismatch:void 0,rangeOverflow:w.rangeOverflow===!0?w.rangeOverflow:void 0,rangeUnderflow:w.rangeUnderflow===!0?w.rangeUnderflow:void 0,stepMismatch:w.stepMismatch===!0?w.stepMismatch:void 0,tooLong:w.tooLong===!0?w.tooLong:void 0,tooShort:w.tooShort===!0?w.tooShort:void 0,typeMismatch:w.typeMismatch===!0?w.typeMismatch:void 0,valueMissing:w.valueMissing===!0?w.valueMissing:void 0}}b.dataset&&(c[V].data=b.dataset)}}));let d;try{d=Array.from(i.classList)}catch{}let g={...i.dataset},x;Object.prototype.toString.call(i)==="[object Notification]"&&(g="notification-".concat(i.userAction),x={actions:i.actions,badge:i.badge,body:i.body,data:i.data,dir:i.dir,icon:i.icon,image:i.image,lang:i.lang,renotify:i.renotify,requireInteraction:i.requireInteraction,silent:i.silent,tag:i.tag,timestamp:i.timestamp,title:i.title,vibrate:i.vibrate});let _={payload:g,_ui:{type:"eventSend",id:i.id!==""?i.id:void 0,name:i.name!==""?i.name:void 0,slotText:i.textContent?i.textContent.substring(0,255):void 0,form:c,props:r,attribs:o,classes:d,notification:x,event:e.type,altKey:e.altKey,ctrlKey:e.ctrlKey,shiftKey:e.shiftKey,metaKey:e.metaKey,pointerType:e.pointerType,nodeName:i.nodeName,clientId:this.clientId,pageName:this.pageName,tabId:this.tabId}};h.length>0&&h.forEach(b=>{_.payload[b.key]=b.val}),e.type==="change"&&(_._ui.newValue=_.payload.value="checked"in i?i.checked:e.target.value),a("trace","Uib:eventSend","Sending msg to Node-RED",_)(),i.dataset&&i.dataset.length===0&&a("warn","Uib:eventSend","No payload in msg. data-* attributes should be used.")(),this._send(_,this._ioChannels.client,t)}send(e,t=""){this._send(e,this._ioChannels.client,t)}sendRoom(e,t){this._socket.emit("uib-room-send",e,t)}joinRoom(e){this._socket.emit("uib-room-join",e)}leaveRoom(e){this._socket.emit("uib-room-leave",e)}sendCtrl(e){this._send(e,this._ioChannels.control)}_getIOnamespace(){let e;if(e=this.cookies["uibuilder-namespace"],e===void 0||e===""){let t=window.location.pathname.split("/").filter(function(i){return i.trim()!==""});t.length>0&&t[t.length-1].endsWith(".html")&&t.pop(),e=t.pop(),a("trace","uibuilder.module.js:getIOnamespace","Socket.IO namespace found via url path: ".concat(e))()}else a("trace","uibuilder.module.js:getIOnamespace","Socket.IO namespace found via cookie: ".concat(e))();return this.url=e,e="/"+e,a("trace","uibuilder.module.js:getIOnamespace","Final Socket.IO namespace: ".concat(e))(),e}_checkConnect(e,t,i=1){if(navigator.onLine!==!1)return e||(e=this.retryMs),t||(t=this.retryFactor),a("trace","Uib:checkConnect","Checking connection. 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Connection count: ".concat(this.connectedNum,", Is a Recovery?: ").concat(this._socket.recovered,". \nNamespace: ").concat(this.ioNamespace))(),this._dispatchCustomEvent("uibuilder:socket:connected",{numConnections:this.connectedNum,isRecovery:this._socket.recovered}),this._checkConnect()}_onDisconnect(e){a("info","Uib:ioSetup:socket-disconnect","\u26D4 Socket Disconnected. Reason: ".concat(e))(),this._dispatchCustomEvent("uibuilder:socket:disconnected",e),this._checkConnect()}_ioSetup(){return q===void 0?(a("error","Uib:ioSetup","Socket.IO client not loaded, Node-RED comms will not work")(),!1):(this._socket&&(a("trace","Uib:ioSetup","Removing listeners in preparation for redoing Socket.IO connections")(),u(this,k)&&(window.clearTimeout(u(this,k)),A(this,k,null)),this._socket.close(),this._socket.offAny(),this._socket=void 0,this.set("ioConnected",!1)),this.socketOptions.path=this.ioPath,a("trace","Uib:ioSetup","About to create IO object. Transports: [".concat(this.socketOptions.transports.join(", "),"]"))(),this._socket=q(this.ioNamespace,this.socketOptions),this._connectGlobal(),this._socket.on("connect",this._onConnect.bind(this)),this._socket.on(this._ioChannels.server,this._stdMsgFromServer.bind(this)),this._socket.on(this._ioChannels.control,this._ctrlMsgFromServer.bind(this)),this._socket.on("disconnect",this._onDisconnect.bind(this)),this._socket.on("connect_error",e=>{navigator.onLine!==!1&&(a("error","Uib:ioSetup:connect_error","\u274C Socket.IO Connect Error. Reason: ".concat(e.message),e)(),this.set("ioConnected",!1),this.set("socketError",e),this._dispatchCustomEvent("uibuilder:socket:disconnected",e))}),this._socket.on("error",e=>{a("error","Uib:ioSetup:error","\u274C Socket.IO Error. Reason: ".concat(e.message),e)(),this.set("ioConnected",!1),this.set("socketError",e),this._dispatchCustomEvent("uibuilder:socket:disconnected",e)}),this._checkConnect(),!0)}_connectGlobal(){this._socketGlobal=q("/",this.socketOptions),this._socketGlobal.onAny((...e)=>{this.set("globalMsg",e.slice(0,-1))})}connect(){this._socket.connect()}disconnect(){this._socket.disconnect(),u(this,k)&&window.clearTimeout(u(this,k))}start(e){a("trace","Uib:start","Starting")(),u(this,oe)&&this.cancelChange("msg",u(this,oe)),this.started===!0&&a("info","Uib:start","Start function already called. Resetting Socket.IO and msg handler.")(),a("log","Uib:start","Cookies: ",this.cookies,"\nClient ID: ".concat(this.clientId))(),a("trace","Uib:start","ioNamespace: ",this.ioNamespace,"\nioPath: ".concat(this.ioPath))(),e&&(e.ioNamespace&&this.set("ioNamespace",e.ioNamespace),e.ioPath&&this.set("ioPath",e.ioPath),e.nopolling&&this.socketOptions.transports[0]==="polling"&&this.socketOptions.transports.shift()),document.styleSheets.length>=1||document.styleSheets.length===1&&document.styleSheets[0].cssRules.length===0?a("info","Uib:start","Styles already loaded so not loading uibuilder default styles.")():e&&e.loadStylesheet===!1?a("info","Uib:start","No styles loaded & options.loadStylesheet === false.")():(a("info","Uib:start","No styles loaded, loading uibuilder default styles.")(),this.loadStyleSrc("".concat(this.httpNodeRoot,"/uibuilder/uib-brand.min.css")));let[t]=performance.getEntriesByType("navigation");if(this.set("lastNavType",t.type),this.set("started",this._ioSetup()),this.started===!0?a("trace","Uib:start","Start completed. Socket.IO client library loaded.")():a("error","Uib:start","Start completed. ERROR: Socket.IO client library NOT LOADED.")(),this._watchHashChanges(),window.Vue){this.set("isVue",!0);try{this.set("vueVersion",window.Vue.version)}catch{}a("trace","Uib:start","VueJS is loaded. Version: ".concat(this.vueVersion))()}else a("trace","Uib:start","VueJS is not loaded.")();window.DOMPurify?(this.set("purify",!0),a("trace","Uib:start","DOMPurify is loaded.")()):a("trace","Uib:start","DOMPurify is not loaded.")(),window.markdownit?(this.set("markdown",!0),a("trace","Uib:start","Markdown-IT is loaded.")()):a("trace","Uib:start","Markdown-IT is not loaded.")(),this.onChange("msg",i=>{if(u(this,z)===!0){let r=document.getElementById("uib_last_msg");r&&(r.innerHTML=this.syntaxHighlight(i))}}),this._dispatchCustomEvent("uibuilder:startComplete")}},H=new WeakMap,O=new WeakMap,$=new WeakMap,k=new WeakMap,oe=new WeakMap,z=new WeakMap,G=new WeakMap,F=new WeakMap,ve=new WeakMap,ae=new WeakMap,ce=new WeakMap,D=new WeakMap,l(E,"_meta",{version:wt,type:"module",displayName:"uibuilder"}),E),ke=new ei;window.uibuilder?a("error","uibuilder.module.js","`uibuilder` already assigned to window. Have you tried to load it more than once?"):window.uibuilder=ke;window.uib?a("warn","uibuilder.module.js","`uib` shortcut already assigned to window."):window.uib=ke;window.$?a("warn","uibuilder.module.js","Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` or `uib.$` instead."):window.$=window.uibuilder.$;window.$$?a("warn","uibuilder.module.js","Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` or `uib.$$` instead."):window.$$=window.uibuilder.$$;window.$ui?a("warn","uibuilder.module.js","Cannot allocate the global `$ui`, it is already in use. Use `uibuilder.$ui` or `uib.$ui` instead."):window.$ui=window.uibuilder.$ui;var Js=ke;ke.start();customElements.define("uib-var",ne);export{ei as Uib,Js as default,ke as uibuilder};
 //# sourceMappingURL=uibuilder.esm.min.js.map
diff --git a/front-end/uibuilder.esm.min.js.map b/front-end/uibuilder.esm.min.js.map
index 5d6bd53d..94c4db7c 100644
--- a/front-end/uibuilder.esm.min.js.map
+++ b/front-end/uibuilder.esm.min.js.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
-  "sources": ["src/front-end-module/ui.js", "src/front-end-module/uibuilder.module.js", "src/components/uib-var.js", "node_modules/engine.io-parser/build/esm/commons.js", "node_modules/engine.io-parser/build/esm/encodePacket.browser.js", "node_modules/engine.io-parser/build/esm/contrib/base64-arraybuffer.js", "node_modules/engine.io-parser/build/esm/decodePacket.browser.js", "node_modules/engine.io-parser/build/esm/index.js", "node_modules/@socket.io/component-emitter/index.mjs", "node_modules/engine.io-client/build/esm/globalThis.browser.js", "node_modules/engine.io-client/build/esm/util.js", "node_modules/engine.io-client/build/esm/contrib/parseqs.js", "node_modules/engine.io-client/build/esm/transport.js", "node_modules/engine.io-client/build/esm/contrib/yeast.js", "node_modules/engine.io-client/build/esm/contrib/has-cors.js", "node_modules/engine.io-client/build/esm/transports/xmlhttprequest.browser.js", "node_modules/engine.io-client/build/esm/transports/polling.js", "node_modules/engine.io-client/build/esm/transports/websocket-constructor.browser.js", "node_modules/engine.io-client/build/esm/transports/websocket.js", "node_modules/engine.io-client/build/esm/transports/webtransport.js", "node_modules/engine.io-client/build/esm/transports/index.js", "node_modules/engine.io-client/build/esm/contrib/parseuri.js", "node_modules/engine.io-client/build/esm/socket.js", "node_modules/engine.io-client/build/esm/index.js", "node_modules/socket.io-client/build/esm/url.js", "node_modules/socket.io-parser/build/esm/index.js", "node_modules/socket.io-parser/build/esm/is-binary.js", "node_modules/socket.io-parser/build/esm/binary.js", "node_modules/socket.io-client/build/esm/on.js", "node_modules/socket.io-client/build/esm/socket.js", "node_modules/socket.io-client/build/esm/contrib/backo2.js", "node_modules/socket.io-client/build/esm/manager.js", "node_modules/socket.io-client/build/esm/index.js"],
-  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\n// Namespaces - See https://stackoverflow.com/a/52572048/1309986\n// const NAMESPACES = {\n//     svg: 'http://www.w3.org/2000/svg',\n//     html: 'http://www.w3.org/1999/xhtml',\n//     xml: 'http://www.w3.org/XML/1998/namespace',\n//     xlink: 'http://www.w3.org/1999/xlink',\n//     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n// }\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    //#region ---- Internal Methods ----\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                if (attrib === 'class' && Array.isArray(comp.attributes[attrib])) comp.attributes[attrib].join(' ')\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n    } // --- end of _uiManager ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    //#endregion ---- -------- ----\n    //#region ---- External Methods ----\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {HTMLElement|null} Selected HTML element or null\n     */\n    $(cssSelector) {\n        /** @type {*} Some kind of HTML element */\n        let el = document.querySelector(cssSelector)\n\n        if (!el) {\n            Ui.log(1, 'Uib:$', `No element found for CSS selector ${cssSelector}`)()\n            return null\n        }\n\n        if ( el.nodeName === 'TEMPLATE' ) {\n            el = el.content.firstElementChild\n            if (!el) {\n                Ui.log(0, 'Uib:$', `Template selected for CSS selector ${cssSelector} but it is empty`)()\n                return null\n            }\n        }\n\n        return el\n    }\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {string} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {HTMLElement[]} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$(cssSelector) {\n        return Array.from(document.querySelectorAll(cssSelector))\n    }\n\n    /** Add 1 or several class names to an element\n     * @param {string|string[]} classNames Single or array of classnames\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    addClass(classNames, el) {\n        if (!Array.isArray(classNames)) classNames = [classNames]\n        if (el) el.classList.add(...classNames)\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n                if (attrib.name === 'class') thisOut.classes = Array.from(node.classList)\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    /** Remove All, 1 or more class names from an element\n     * @param {undefined|null|\"\"|string|string[]} classNames Single or array of classnames. If undefined, \"\" or null, remove all classes\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    removeClass(classNames, el) {\n        if (!classNames) {\n            el.removeAttribute('class')\n            return\n        }\n        if (!Array.isArray(classNames)) classNames = [classNames]\n        if (el) el.classList.remove(...classNames)\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += `<div>${msg.payload}</div>`\n        if (ui.content) content += `<div>${ui.content}</div>`\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        console.log(this)\n        this._uiManager(msg)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName) {\n                if (propName === 'classes') propName = 'class'\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    const p = {}\n                    // Nightmare of different object types in a DOM Element!\n                    const cType = prop.constructor.name.toLowerCase()\n                    if (cType === 'namednodemap') {\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                    } else if (!cType.includes('map')) { // Ordinary properties (not a mapped type)\n                        p[propName] = prop\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                    }\n                    if (p.class) p.classes = Array.from(node.classList)\n                    out.push(p)\n                }\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    /** External alias for _uiComposeComponent\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    //#endregion ---- -------- ----\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n", "/* This is the Front-End JavaScript for uibuilder  in HTML Module form\n  It provides a number of global objects that can be used in your own javascript.\n  see the docs folder `./docs/uibuilder.module.md` for details of how to use this fully.\n\n  Please use the default index.js file for your own code and leave this as-is.\n  See Uib._meta for client version string\n\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n//#region --- Type Defs --- //\n/**\n * A string containing HTML markup\n * @typedef {string} html\n */\n//#endregion --- Type Defs --- //\n\n//#region --- We need the Socket.IO & ui libraries & the uib-var component  --- //\n// @ts-ignore - Note: Only works when using esbuild to bundle\nimport Ui from './ui'\nimport UibVar from '../components/uib-var'\nimport io from 'socket.io-client'\n\n// TODO - Maybe - check if already loaded as window['io']?\n// TODO - Maybe - Should this be moved to inside the class - would know the httpRoot then so less need to guess?\n// TODO           Or, could pull the cookie processing out of the class\n// const ioLocns = [ // Likely locations of the Socket.IO client library\n//     // Where it should normally be\n//     '../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and haven't changed httpNodeRoot\n//     '/uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and have changed httpNodeRoot\n//     '../../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Direct from the Internet - last ditch attempt\n//     'https://cdn.jsdelivr.net/npm/socket.io-client/+esm',\n// ]\n\n// let io\n// for (const locn of ioLocns) {\n//     try {\n//         ({ io } = await import(locn))\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library found at '${locn}'`)()\n//     } catch (e) {\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library not found at '${locn}'`)()\n//     }\n//     if (io) break\n// }\n// if (!io) log('error', 'uibuilder.module.js', 'Socket.IO client failed to load')()\n//#endregion -------- -------- -------- //\n\nconst version = '6.8.0-src'\n\n// TODO Add option to allow log events to be sent back to Node-RED as uib ctrl msgs\n//#region --- Module-level utility functions --- //\n\n// @ts-ignore Detect whether the loaded library is minified or not\nconst isMinified = !(/param/).test(function (param) { }) // eslint-disable-line no-unused-vars\n\n//#region --- print/console - debugging output functions --- //\n\n/** Default log level - Error & Warn */\nlet logLevel = isMinified ? 0 : 1  // When using minified lib, assume production and only log errors otherwise also log warn\n// function changeLogLevel(level) {\n//     logLevel = level\n//     console.trace = logLevel < 4 ? function(){} : console.trace\n//     console.debug = logLevel < 2 ? function(){} : console.debug\n//     if ( logLevel < 1 ) {\n//         console.log = console.group = console.groupEnd =  function(){}\n//     }\n// }\n\n// Experimental\nconst LOG_STYLES = {\n    // 0\n    error: {\n        css: 'background: red; color: black;',\n        txtCss: 'color: red; ',\n        pre: '\u26D4 ',\n        console: 'error',  // or trace\n    },\n    // 1\n    warn: {\n        css: 'background: darkorange; color: black;',\n        txtCss: 'color: darkorange; ',\n        pre: '\u26A0 ',\n        console: 'warn',\n    },\n    // 2\n    info: {\n        css: 'background: aqua; color: black;',\n        txtCss: 'color: aqua;',\n        pre: '\u2757 ',\n        console: 'info',\n    },\n    // 3\n    log: {\n        css: 'background: grey; color: yellow;',\n        txtCss: 'color: grey;',\n        pre: '',\n        console: 'log',\n    },\n    // 4\n    debug: {\n        css: 'background: chartreuse; color: black;',\n        txtCss: 'color: chartreuse;',\n        pre: '',\n        console: 'debug',\n    },\n    // 5\n    trace: {\n        css: 'background: indigo; color: yellow;',\n        txtCss: 'color: hotpink;',\n        pre: '',\n        console: 'log',\n    },\n\n    names: ['error', 'warn', 'info', 'log', 'debug', 'trace'],\n    reset: 'color: inherit;',\n    head: 'font-weight:bold; font-style:italic;',\n    level: 'font-weight:bold; border-radius: 3px; padding: 2px 5px; display:inline-block;',\n}\n/** Custom logging. e.g. log(2, 'here:there', 'jiminy', {fred:'jim'})()\n * @returns {Function} Log function @example log(2, 'here:there', 'jiminy', {fred:'jim'})()\n */\nfunction log() {\n    // Get the args\n    const args = Array.prototype.slice.call(arguments)\n\n    // 1st arg is the log level/type\n    let level = args.shift()\n    let strLevel\n    switch (level) {\n        case 'trace':\n        case 5: {\n            if (logLevel < 5) break\n            level = 5 // make sure level is numeric\n            strLevel = 'trace'\n            break\n        }\n\n        case 'debug':\n        case 4: {\n            if (logLevel < 4) break\n            level = 4\n            strLevel = 'debug'\n            break\n        }\n\n        case 'log':\n        case 3: {\n            if (logLevel < 3) break\n            level = 3\n            strLevel = 'log'\n            break\n        }\n\n        case 'info':\n        case '':\n        case 2: {\n            if (logLevel < 2) break\n            level = 2\n            strLevel = 'info'\n            break\n        }\n\n        case 'warn':\n        case 1: {\n            if (logLevel < 1) break\n            level = 1\n            strLevel = 'warn'\n            break\n        }\n\n        case 'error':\n        case 'err':\n        case 0: {\n            if (logLevel < 0) break\n            level = 0\n            strLevel = 'error'\n            break\n        }\n\n        default: {\n            level = -1\n            break\n        }\n\n    }\n\n    // If set to something unknown, no log output\n    if (strLevel === undefined) return function () { }\n\n    // 2nd arg is a heading that will be colour highlighted\n    const head = args.shift()\n\n    // Bind back to console.log (could use console[strLevel] but some levels ignore some formatting, use console.xxx directly or dedicated fn)\n    return Function.prototype.bind.call(\n        console[LOG_STYLES[strLevel].console],\n        console,\n        `%c${LOG_STYLES[strLevel].pre}${strLevel}%c [${head}]`, `${LOG_STYLES.level} ${LOG_STYLES[strLevel].css}`, `${LOG_STYLES.head} ${LOG_STYLES[strLevel].txtCss}`,\n        ...args\n    )\n}\n//#endregion\n\n/** A hack to dynamically load a remote module and wait until it is loaded\n * @param {string} url The URL of the module to load\n * @returns {object|null} Either the result object or null (if the load fails)\n */\n// function loadModule(url) { // eslint-disable-line no-unused-vars\n//     let done\n\n//     import(url)\n//         .then(res => {\n//             log('debug', '>> then >>', res)()\n//             done = res\n//         })\n//         .catch(err => {\n//             console.error(`[uibuilder:loadModule] Could not load module ${url}`, err)\n//             done = null\n//         })\n\n//     //  eslint-disable-next-line no-empty\n//     while (!done) { } // eslint-disable-line no-unmodified-loop-condition\n\n//     return done\n// }\n\n/** Makes a null or non-object into an object\n * If not null, moves \"thing\" to {payload:thing}\n *\n * @param {*} thing Thing to check\n * @param {string} [property='payload'] property that \"thing\" is moved to if not null and not an object\n * @returns {!object} _\n */\nfunction makeMeAnObject(thing, property) {\n    if (!property) property = 'payload'\n    if (typeof property !== 'string') {\n        log('warn', 'uibuilderfe:makeMeAnObject', `WARNING: property parameter must be a string and not: ${typeof property}`)()\n        property = 'payload'\n    }\n    let out = {}\n    if ( thing !== null && thing.constructor.name === 'Object' ) {\n        out = thing\n    } else if (thing !== null) {\n        out[property] = thing\n    }\n    return out\n} // --- End of make me an object --- //\n\n/** Joins all arguments as a URL string\n * see http://stackoverflow.com/a/28592528/3016654\n * since v1.0.10, fixed potential double // issue\n * arguments {string} URL fragments\n * @returns {string} _\n */\nfunction urlJoin() {\n    const paths = Array.prototype.slice.call(arguments)\n    const url = '/' + paths.map(function (e) {\n        return e.replace(/^\\/|\\/$/g, '')\n    })\n        .filter(function (e) {\n            return e\n        })\n        .join('/')\n    return url.replace('//', '/')\n} // ---- End of urlJoin ---- //\n\n/** Convert JSON to Syntax Highlighted HTML\n * @param {object} json A JSON/JavaScript Object\n * @returns {html} Object reformatted as highlighted HTML\n */\nfunction syntaxHighlight(json) {\n    if (json === undefined) {\n        json = '<span class=\"undefined\">undefined</span>'\n    } else {\n        try {\n            json = JSON.stringify(json, undefined, 4)\n            // json = json.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;') // eslint-disable-line newline-per-chained-call\n            json = json.replace(/(\"(\\\\u[a-zA-Z0-9]{4}|\\\\[^u]|[^\\\\\"])*\"(\\s*:)?|\\b(true|false|null)\\b|-?\\d+(?:\\.\\d*)?(?:[eE][+-]?\\d+)?)/g, function (match) { // eslint-disable-line prefer-named-capture-group\n                let cls = 'number'\n                if ((/^\"/).test(match)) {\n                    if ((/:$/).test(match)) {\n                        cls = 'key'\n                    } else {\n                        cls = 'string'\n                    }\n                } else if ((/true|false/).test(match)) {\n                    cls = 'boolean'\n                } else if ((/null/).test(match)) {\n                    cls = 'null'\n                }\n                return `<span class=\"${cls}\">${match}</span>`\n            })\n        } catch (e) {\n            json = `Syntax Highlight ERROR: ${e.message}`\n        }\n    }\n    return json\n}\n\n/** msg._ui handling functions */\nconst _ui = new Ui(window, log, syntaxHighlight)\n\n//#endregion --- Module-level utility functions --- //\n\n/** Define and export the Uib class - note that an instance of the class is also exported in the wrap-up\n * @typicalname uibuilder\n */\nexport const Uib = class Uib {\n\n    //#region --- Static variables ---\n    static _meta = {\n        version: version,\n        type: 'module',\n        displayName: 'uibuilder',\n    }\n    //#endregion ---- ---- ---- ----\n\n    //#region private class vars\n\n    // How many times has the loaded instance connected to Socket.IO (detect if not a new load?)\n    connectedNum = 0\n    // event listener callbacks by property name\n    // #events = {}\n    // Socket.IO channel names\n    _ioChannels = { control: 'uiBuilderControl', client: 'uiBuilderClient', server: 'uiBuilder' }\n    /** setInterval holder for pings @type {function|undefined} */\n    #pingInterval\n    // onChange event callbacks\n    #propChangeCallbacks = {}\n    // onTopic event callbacks\n    #msgRecvdByTopicCallbacks = {}\n    // Is Vue available?\n    isVue = false\n    // What version? Set in startup if Vue is loaded. Won't always work\n    vueVersion = undefined\n    /** setInterval id holder for Socket.IO checkConnect\n     * @type {number|null}\n     */\n    #timerid = null\n    // Holds the reference ID for the internal msg change event handler so that it can be cancelled\n    #MsgHandler\n    // Placeholder for io.socket - can't make a # var until # fns allowed in all browsers\n    _socket\n    // Placeholder for an observer that watches the whole DOM for changes - can't make a # var until # fns allowed in all browsers\n    _htmlObserver\n    // Has showMsg been turned on?\n    #isShowMsg = false\n    // Has showStatus been turned on?\n    #isShowStatus = false\n    // If true, URL hash changes send msg back to node-red. Controlled by watchUrlHash()\n    #sendUrlHash = false\n    // Externally accessible command functions (NB: Case must match) - remember to update _uibCommand for new commands\n    #extCommands = [\n        'elementExists', 'get', 'getManagedVarList', 'getWatchedVars', 'htmlSend', 'include',\n        'navigate', 'scrollTo', 'set', 'showMsg', 'showStatus', 'uiGet', 'uiWatch', 'watchUrlHash',\n    ]\n\n    /** @type {{[key: string]: string}} Managed uibuilder variables */\n    #managedVars = {}\n\n    // What status variables to show via showStatus()\n    #showStatus = {\n        online: { 'var': 'online', 'label': 'Online?', 'description': 'Is the browser online?', },\n        ioConnected: { 'var': 'ioConnected', 'label': 'Socket.IO connected?', 'description': 'Is Socket.IO connected?', },\n        connectedNum: { 'var': 'connectedNum', 'label': '# reconnections', 'description': 'How many times has Socket.IO had to reconnect since last page load?', },\n\n        clientId: { 'var': 'clientId', 'label': 'Client ID', 'description': 'Static client unique id set in Node-RED. Only changes when browser is restarted.', },\n        tabId: { 'var': 'tabId', 'label': 'Browser tab ID', 'description': 'Static unique id for the browser\\'s current tab', },\n        cookies: { 'var': 'cookies', 'label': 'Cookies', 'description': 'Cookies set in Node-RED', },\n        httpNodeRoot: { 'var': 'httpNodeRoot', 'label': 'httpNodeRoot', 'description': 'From Node-RED\\' settings.js, affects URL\\'s. May be wrong for pages in sub-folders', },\n        pageName: { 'var': 'pageName', 'label': 'Page name', 'description': 'Actual name of this page', },\n\n        ioNamespace: { 'var': 'ioNamespace', 'label': 'SIO namespace', 'description': 'Socket.IO namespace - unique to each uibuilder node instance', },\n        // ioPath: { 'var': 'ioPath', 'label': 'SIO path', 'description': '', }, // no longer needed in the modern client\n        socketError: { 'var': 'socketError', 'label': 'Socket error', 'description': 'If the Socket.IO connection has failed, says why', },\n\n        msgsSent: { 'var': 'msgsSent', 'label': '# msgs sent', 'description': 'How many standard messages have been sent to Node-RED?', },\n        msgsReceived: { 'var': 'msgsReceived', 'label': '# msgs received', 'description': 'How many standard messages have been received from Node-RED?', },\n        msgsSentCtrl: { 'var': 'msgsSentCtrl', 'label': '# control msgs sent', 'description': 'How many control messages have been sent to Node-RED?', },\n        msgsCtrlReceived: { 'var': 'msgsCtrlReceived', 'label': '# control msgs received', 'description': 'How many control messages have been received from Node-RED?', },\n        originator: { 'var': 'originator', 'label': 'Node Originator', 'description': 'If the last msg from Node-RED was from a `uib-sender` node, this will be its node id so that messasges can be returned to it', },\n        topic: { 'var': 'topic', 'label': 'Default topic', 'description': 'Optional default topic to be included in outgoing standard messages', },\n\n        started: { 'var': 'started', 'label': 'Has uibuilder client started?', 'description': 'Whether `uibuilder.start()` ran successfully. This should self-run and should not need to be run manually', },\n        version: { 'var': 'version', 'label': 'uibuilder client version', 'description': 'The version of the loaded uibuilder client library', },\n        serverTimeOffset: { 'var': 'serverTimeOffset', 'label': 'Server time offset (Hrs)', 'description': 'The number of hours difference between the Node-red server and the client', },\n    }\n\n    // Track ui observers (see uiWatch)\n    #uiObservers = {}\n\n    //#endregion\n\n    //#region public class vars\n\n    // TODO Move to proper getters\n    //#region ---- Externally read-only (via .get method) ---- //\n    // version - moved to _meta\n    /** Client ID set by uibuilder on connect */\n    clientId = ''\n    /** The collection of cookies provided by uibuilder */\n    cookies = {}\n    /** Copy of last control msg object received from sever */\n    ctrlMsg = {}\n    /** Is Socket.IO client connected to the server? */\n    ioConnected = false\n    // Is the browser tab containing this page visible or not?\n    isVisible = false\n    // Remember the last page (re)load/navigation type: navigate, reload, back_forward, prerender\n    lastNavType = ''\n    /** Last std msg received from Node-RED */\n    msg = {}\n    /** number of messages sent to server since page load */\n    msgsSent = 0\n    /** number of messages received from server since page load */\n    msgsReceived = 0\n    /** number of control messages sent to server since page load */\n    msgsSentCtrl = 0\n    /** number of control messages received from server since page load */\n    msgsCtrlReceived = 0\n    /** Is the client online or offline? */\n    online = navigator.onLine\n    /** last control msg object sent via uibuilder.send() @since v2.0.0-dev3 */\n    sentCtrlMsg = {}\n    /** last std msg object sent via uibuilder.send() */\n    sentMsg = {}\n    /** placeholder to track time offset from server, see fn socket.on(ioChannels.server ...) */\n    serverTimeOffset = null\n    /** placeholder for a socket error message */\n    socketError = null\n    // tab identifier from session storage\n    tabId = ''\n    // Actual name of current page (set in constructor)\n    pageName = null\n    // Is the DOMPurify library loaded? Updated in start()\n    purify = false\n    // Is the Markdown-IT library loaded? Updated in start()\n    markdown = false\n    // Current URL hash. Initial set is done from start->watchHashChanges via a set to make it watched\n    urlHash = location.hash\n    //#endregion ---- ---- ---- ---- //\n\n    // TODO Move to proper getters/setters\n    //#region ---- Externally Writable (via .set method, read via .get method) ---- //\n    /** Default originator node id - empty string by default\n     * @type {string}\n     */\n    originator = ''\n    /** Default topic - used by send if set and no topic provided\n     * @type {(string|undefined)}\n     */\n    topic = undefined\n    //#endregion ---- ---- ---- ---- //\n\n    //#region ---- These are unlikely to be needed externally: ----\n    autoSendReady = true\n    httpNodeRoot = '' // Node-RED setting (via cookie)\n    ioNamespace = ''\n    ioPath = ''\n    retryFactor = 1.5       // starting delay factor for subsequent reconnect attempts\n    retryMs = 2000          // starting retry ms period for manual socket reconnections workaround\n    storePrefix = 'uib_'    // Prefix for all uib-related localStorage\n    started = false\n    // NOTE: These can only change when a client (re)connects\n    socketOptions = {\n        path: this.ioPath,\n        transports: ['polling', 'websocket'],\n        // Using callback so that they are updated automatically on (re)connect\n        // Only put things in here that will be valid for a websocket connected session\n        auth: (cb) => {\n            cb({ // eslint-disable-line n/no-callback-literal\n                clientVersion: version,\n                clientId: this.clientId,\n                pathName: window.location.pathname,\n                urlParams: Object.fromEntries(new URLSearchParams(location.search)),\n                pageName: this.pageName,\n                tabId: this.tabId,\n                lastNavType: this.lastNavType,\n                connectedNum: ++this.connectedNum,\n                // Used to calculate the diff between the server and client connection timestamps - reported if >1 minute\n                browserConnectTimestamp: (new Date()).toISOString(),\n            })\n        },\n        transportOptions: {\n            // Can only set headers when polling\n            polling: {\n                extraHeaders: {\n                    'x-clientid': `${Uib._meta.displayName}; ${Uib._meta.type}; ${Uib._meta.version}; ${this.clientId}`,\n                }\n            },\n        },\n    }\n    //#endregion -- not external --\n\n    //#endregion --- End of variables ---\n\n    //#region ------- Getters and Setters ------- //\n\n    // Change logging level dynamically (affects both console. and print.)\n    set logLevel(level) { logLevel = level; console.log('%c\u2757 info%c [logLevel]', `${LOG_STYLES.level} ${LOG_STYLES.info.css}`, `${LOG_STYLES.head} ${LOG_STYLES.info.txtCss}`, `Set to ${level} (${LOG_STYLES.names[level]})`) /* changeLogLevel(level)*/ }\n    get logLevel() { return logLevel }\n\n    get meta() { return Uib._meta }\n\n    /** Function to set uibuilder properties to a new value - works on any property except _* or #*\n     * Also triggers any event listeners.\n     * Example: this.set('msg', {topic:'uibuilder', payload:42});\n     * @param {string} prop Any uibuilder property who's name does not start with a _ or #\n     * @param {*} val The set value of the property or a string declaring that a protected property cannot be changed\n     * @param {boolean} [store] If true, the variable is also saved to the browser localStorage if possible\n     * @param {boolean} [autoload] If true & store is true, on load, uib will try to restore the value from the store automatically\n     * @returns {*} Input value\n     */\n    set(prop, val, store = false, autoload = false) {\n        // Check for excluded properties - we don't want people to set these\n        // if (this.#excludedSet.indexOf(prop) !== -1) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:set', `Cannot use set() on protected property \"${prop}\"`)()\n            return `Cannot use set() on protected property \"${prop}\"`\n        }\n\n        // We must add the var to the uibuilder object\n        this[prop] = val\n\n        // Keep track of all managed variables\n        this.#managedVars[prop] = prop\n\n        // If requested, save to store\n        if (store === true) this.setStore(prop, val, autoload)\n\n        log('trace', 'Uib:set', `prop set - prop: ${prop}, val: `, val, ` store: ${store}, autoload: ${autoload}`)()\n\n        // Trigger this prop's event callbacks (listeners which are set by this.onChange)\n        // this.emit(prop, val)\n\n        // trigger an event on the prop name, pass both the name and value to the event details\n        this._dispatchCustomEvent('uibuilder:propertyChanged', { 'prop': prop, 'value': val, 'store': store, 'autoload': autoload })\n\n        return val\n    }\n\n    /** Function to get the value of a uibuilder property\n     * Example: uibuilder.get('msg')\n     * @param {string} prop The name of the property to get as long as it does not start with a _ or #\n     * @returns {*|undefined} The current value of the property\n     */\n    get(prop) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:get', `Cannot use get() on protected property \"${prop}\"`)()\n            return\n        }\n        if (prop === 'version') return Uib._meta.version\n        if (prop === 'msgsCtrl') return this.msgsCtrlReceived\n        if (prop === 'reconnections') return this.connectedNum\n        if (this[prop] === undefined) {\n            log('warn', 'Uib:get', `get() - property \"${prop}\" is undefined`)()\n        }\n        return this[prop]\n    }\n\n    /** Write to localStorage if possible. console error output if can't write\n     * Also uses this.storePrefix\n     * @example\n     *   uibuilder.setStore('fred', 42)\n     *   console.log(uibuilder.getStore('fred'))\n     * @param {string} id localStorage var name to be used (prefixed with 'uib_')\n     * @param {*} value value to write to localstore\n     * @param {boolean} [autoload] If true, on load, uib will try to restore the value from the store\n     * @returns {boolean} True if succeeded else false\n     */\n    setStore(id, value, autoload = false) {\n        let autoVars = {}\n        if (autoload === true) {\n            try {\n                autoVars = this.getStore('_uibAutoloadVars') || {}\n            } catch (e) {}\n        }\n        if (typeof value === 'object') {\n            try {\n                value = JSON.stringify(value)\n            } catch (e) {\n                log('error', 'Uib:setStore', 'Cannot stringify object, not storing. ', e)()\n                return false\n            }\n        }\n        try {\n            localStorage.setItem(this.storePrefix + id, value)\n            if (autoload) {\n                autoVars[id] = id\n                try {\n                    localStorage.setItem(this.storePrefix + '_uibAutoloadVars', JSON.stringify(autoVars))\n                } catch (e) {\n                    log('error', 'Uib:setStore', 'Cannot save autoload list. ', e)()\n                }\n            }\n            this._dispatchCustomEvent('uibuilder:propertyStored', { 'prop': id, 'value': value, 'autoload': autoload })\n            return true\n        } catch (e) {\n            log('error', 'Uib:setStore', 'Cannot write to localStorage. ', e)()\n            return false\n        }\n    } // --- end of setStore --- //\n\n    /** Attempt to get and re-hydrate a key value from localStorage\n     * Note that all uib storage is automatically prefixed using this.storePrefix\n     * @param {*} id The key of the value to attempt to retrieve\n     * @returns {*|null|undefined} The re-hydrated value of the key or null if key not found, undefined on error\n     */\n    getStore(id) {\n        try {\n            // @ts-ignore\n            return JSON.parse(localStorage.getItem(this.storePrefix + id))\n        } catch (e) { }\n        try {\n            return localStorage.getItem(this.storePrefix + id)\n        } catch (e) {\n            return undefined\n        }\n    }\n\n    /** Remove a given id from the uib keys in localStorage\n     * @param {*} id The key to remove\n     */\n    removeStore(id) {\n        try {\n            localStorage.removeItem(this.storePrefix + id)\n        } catch (e) { }\n    }\n\n    /** Returns a list of uibuilder properties (variables) that can be watched with onChange\n     * @returns {{[key: string]: string}} List of uibuilder managed variables\n     */\n    getManagedVarList() {\n        return this.#managedVars\n    }\n\n    getWatchedVars() {\n        return Object.keys(this.#propChangeCallbacks)\n    }\n\n    //#endregion ------- -------- ------- //\n\n    //#region ------- Our own event handling system ---------- //\n\n    // TODO Add option to send event details back to Node-RED as uib ctrl msg\n    /** Standard fn to create a custom event with details & dispatch it\n     * @param {string} title The event name\n     * @param {*} details Any details to pass to event output\n     */\n    _dispatchCustomEvent(title, details) {\n        const event = new CustomEvent(title, { detail: details })\n        document.dispatchEvent(event)\n    }\n\n    // See the this.#propChangeCallbacks & msgRecvdByTopicCallbacks private vars\n\n    /** Register on-change event listeners for uibuilder tracked properties\n     * Make it possible to register a function that will be run when the property changes.\n     * Note that you can create listeners for non-existant properties\n     * @example: uibuilder.onChange('msg', (msg) => { console.log('uibuilder.msg changed! It is now: ', msg) })\n     *\n     * @param {string} prop The property of uibuilder that we want to monitor\n     * @param {Function} callback The function that will run when the property changes, parameter is the new value of the property after change\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelChange if you need to remove a listener\n     */\n    onChange(prop, callback) {\n        // Note: Property does not have to exist yet\n\n        // console.debug(`[Uib:onchange] pushing new callback (event listener) for property: ${prop}`)\n\n        // Create a new array or add to the array of callback functions for the property in the events object\n        // if (this.#events[prop]) {\n        //     this.#events[prop].push(callback)\n        // } else {\n        //     this.#events[prop] = [callback]\n        // }\n\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#propChangeCallbacks[prop]) this.#propChangeCallbacks[prop] = { _nextRef: 1 }\n        else this.#propChangeCallbacks[prop]._nextRef++\n\n        const nextCbRef = this.#propChangeCallbacks[prop]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const propChangeCallback = this.#propChangeCallbacks[prop][nextCbRef] = function propChangeCallback(e) {\n            // If the prop name matches the 1st arg in the onChange fn:\n            if (prop === e.detail.prop) {\n                const value = e.detail.value\n                // console.warn('[Uib:onChange:evt] uibuilder:propertyChanged. ', e.detail)\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(value, value)\n            }\n        }\n\n        document.addEventListener('uibuilder:propertyChanged', propChangeCallback)\n\n        return nextCbRef\n    } // ---- End of onChange() ---- //\n\n    cancelChange(prop, cbRef) {\n        document.removeEventListener('uibuilder:propertyChanged', this.#propChangeCallbacks[prop][cbRef])\n        delete this.#propChangeCallbacks[prop][cbRef]\n        // this.#propChangeCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Register a change callback for a specific msg.topic\n     * Similar to onChange but more convenient if needing to differentiate by msg.topic.\n     * @example: let otRef = uibuilder.onTopic('mytopic', function(){ console.log('Received a msg with msg.topic=`mytopic`. msg: ', this) })\n     * To cancel a change listener: uibuilder.cancelTopic('mytopic', otRef)\n     *\n     * @param {string} topic The msg.topic we want to listen for\n     * @param {Function} callback The function that will run when an appropriate msg is received. `this` inside the callback as well as the cb's single argument is the received msg.\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelTopic if you need to remove a listener\n     */\n    onTopic(topic, callback) {\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#msgRecvdByTopicCallbacks[topic]) this.#msgRecvdByTopicCallbacks[topic] = { _nextRef: 1 }\n        else this.#msgRecvdByTopicCallbacks[topic]._nextRef++\n\n        const nextCbRef = this.#msgRecvdByTopicCallbacks[topic]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const msgRecvdEvtCallback = this.#msgRecvdByTopicCallbacks[topic][nextCbRef] = function msgRecvdEvtCallback(e) {\n            const msg = e.detail\n            // console.log('[Uib:onTopic:evt] uibuilder:stdMsgReceived where topic matches. ', e.detail)\n            if (msg.topic === topic) {\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(msg, msg)\n            }\n        }\n\n        document.addEventListener('uibuilder:stdMsgReceived', msgRecvdEvtCallback)\n\n        return nextCbRef\n    }\n\n    cancelTopic(topic, cbRef) {\n        document.removeEventListener('uibuilder:stdMsgReceived', this.#msgRecvdByTopicCallbacks[topic][cbRef])\n        delete this.#msgRecvdByTopicCallbacks[topic][cbRef]\n        // this.#msgRecvdCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Trigger event listener for a given property\n     * Called when uibuilder.set is used\n     *\n     * @param {*} prop The property for which to run the callback functions\n     * arguments: Additional arguments contain the value to pass to the event callback (e.g. newValue)\n     */\n    // emit(prop) {\n    //     var evt = this.#events[prop]\n    //     if (!evt) {\n    //         return\n    //     }\n    //     var args = Array.prototype.slice.call(arguments, 1)\n    //     for (var i = 0; i < evt.length; i++) {\n    //         evt[i].apply(this, args)\n    //     }\n    //     log('trace', 'Uib:emit', `${evt.length} listeners run for prop ${prop} `)()\n    // }\n\n    /** Forcibly removes all event listeners from the events array\n     * Use if you need to re-initialise the environment\n     */\n    // clearEventListeners() {\n    //     this.#events = []\n    // } // ---- End of clearEventListeners() ---- //\n\n    /** Clear a single property event listeners\n     * @param {string} prop The property of uibuilder for which we want to clear the event listener\n     */\n    // clearListener(prop) {\n    //     if (this.#events[prop]) delete this.#events[prop]\n    // }\n\n    //#endregion ---------- End of event handling system ---------- //\n\n    //#region ------- General Utility Functions -------- //\n\n    /** Check supplied msg from server for a timestamp - if received, work out & store difference to browser time\n     * @param {object} receivedMsg A message object recieved from Node-RED\n     * @returns {void} Updates self.serverTimeOffset if different to previous value\n     */\n    _checkTimestamp(receivedMsg) {\n        if (Object.prototype.hasOwnProperty.call(receivedMsg, 'serverTimestamp')) {\n            const serverTimestamp = new Date(receivedMsg.serverTimestamp)\n            // @ts-ignore\n            const offset = Math.round(((new Date()) - serverTimestamp) / 3600000) // in ms /3.6m to get hours\n            if (offset !== this.serverTimeOffset) {\n                log('trace', `Uib:checkTimestamp:${this._ioChannels.server} (server)`, `Offset changed to: ${offset} from: ${this.serverTimeOffset}`)()\n                this.set('serverTimeOffset', offset)\n            }\n        }\n    }\n\n    /** Set the default originator. Set to '' to ignore. Used with uib-sender.\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    setOriginator(originator = '') {\n        this.set('originator', originator)\n    } // ---- End of setOriginator ---- //\n\n    /** HTTP Ping/Keep-alive - makes a call back to uibuilder's ExpressJS server and receives a 204 response\n     * Can be used to keep sessions alive.\n     * @example\n     *   uibuilder.setPing(2000) // repeat every 2 sec. Re-issue with ping(0) to turn off repeat.\n     *   uibuilder.onChange('ping', function(data) {\n     *      console.log('pinger', data)\n     *   })\n     * @param {number} ms Repeat interval in ms\n     */\n    setPing(ms = 0) {\n        const oReq = new XMLHttpRequest()\n        oReq.addEventListener('load', () => {\n            const headers = (oReq.getAllResponseHeaders()).split('\\r\\n')\n            const elapsedTime = Number(new Date()) - Number((oReq.responseURL.split('='))[1])\n            this.set('ping', {\n                success: !!((oReq.status === 201) || (oReq.status === 204)), // true if one of the listed codes else false\n                status: oReq.status,\n                headers: headers,\n                url: oReq.responseURL,\n                elapsedTime: elapsedTime,\n            })\n        })\n\n        if (this.#pingInterval) {\n            clearInterval(this.#pingInterval)\n            this.#pingInterval = undefined\n        }\n\n        oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n        oReq.send()\n\n        if (ms > 0) {\n            this.#pingInterval = setInterval(() => {\n                oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n                oReq.send()\n            }, ms)\n        }\n    } // ---- End of ping ---- //\n\n    log() {\n        log(...arguments)()\n    }\n\n    /** Convert JSON to Syntax Highlighted HTML\n     * @param {object} json A JSON/JavaScript Object\n     * @returns {html} Object reformatted as highlighted HTML\n     */\n    syntaxHighlight(json) {\n        return syntaxHighlight(json)\n    } // --- End of syntaxHighlight --- //\n\n    /** Copies a uibuilder variable to the browser clipboard\n     * @param {string} varToCopy The name of the uibuilder variable to copy to the clipboard\n     */\n    copyToClipboard(varToCopy) {\n        let data = ''\n        try {\n            data = JSON.stringify(this.get(varToCopy))\n        } catch (e) {\n            log('error', 'copyToClipboard', `Could not copy \"${varToCopy}\" to clipboard.`, e.message)()\n        }\n        navigator.clipboard.writeText(data)\n    } // --- End of copyToClipboard --- //\n\n    /** DEPRECATED FOR NOW - wasn't working properly.\n     * Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.\n     * Requires IntersectionObserver (available to all mainstream browsers from early 2019)\n     * Automatically sends a msg back to Node-RED.\n     * Requires the element to already exist.\n     * @returns {false} False if not visible\n     */\n    elementIsVisible() {\n        const info = 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'\n        log('error', 'uib:elementIsVisible', info)()\n        this.send({ payload: 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex' })\n        return false\n    } // --- End of elementIsVisible --- //\n\n    /** Does the chosen CSS Selector currently exist?\n     * Automatically sends a msg back to Node-RED unless turned off.\n     * @param {string} cssSelector Required. CSS Selector to examine for visibility\n     * @param {boolean} [msg] Optional, default=true. If true also sends a message back to Node-RED\n     * @returns {boolean} True if the element exists\n     */\n    elementExists(cssSelector, msg = true) {\n        const el = document.querySelector(cssSelector)\n\n        let exists = false\n        if (el !== null) exists = true\n\n        if (msg === true) {\n            this.send({\n                payload: exists,\n                info: `Element \"${cssSelector}\" ${exists ? 'exists' : 'does not exist'}`\n            })\n        }\n\n        return exists\n    } // --- End of elementExists --- //\n\n    /** Only keep the URL Hash & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return '#' + url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Set up an event listener to watch for hash changes\n     * and set the watchable urlHash variable\n     */\n    _watchHashChanges() {\n        this.set('urlHash', location.hash)\n        window.addEventListener('hashchange', (event) => {\n            this.set('urlHash', location.hash)\n            if (this.#sendUrlHash === true) {\n                this.send({ topic: 'hashChange', payload: location.hash, newHash: this.keepHashFromUrl(event.newURL), oldHash: this.keepHashFromUrl(event.oldURL) })\n            }\n        })\n    }\n\n    /** Returns true/false or a default value for truthy/falsy and other values\n     * @param {string|number|boolean|*} val The value to test\n     * @param {any} deflt Default value to use if the value is not truthy/falsy\n     * @returns {boolean|any} The truth! Or the default\n     */\n    truthy(val, deflt) {\n        let ret\n        if (['on', 'On', 'ON', 'true', 'True', 'TRUE', '1', true, 1].includes(val)) ret = true\n        else if (['off', 'Off', 'OFF', 'false', 'False', 'FALSE', '0', false, 0].includes(val)) ret = false\n        else ret = deflt\n        return ret\n    }\n\n    /** Turn on/off/toggle sending URL hash changes back to Node-RED\n     * @param {string|number|boolean|undefined} [toggle] Optional on/off/etc\n     * @returns {boolean} True if we will send a msg to Node-RED on a hash change\n     */\n    watchUrlHash(toggle) {\n        this.#sendUrlHash = this.truthy(toggle, this.#sendUrlHash !== true)\n        return this.#sendUrlHash\n    }\n\n    /** Navigate to a new page or a new route (hash)\n     * @param {string} url URL to navigate to. Can be absolute or relative (to current page) or just a hash for a route change\n     * @returns {Location} The new window.location string\n     */\n    navigate(url) {\n        if (url) window.location.href = url\n        return window.location\n    }\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- UI handlers --------- //\n\n    //#region -- Direct to _ui --\n    // ! NOTE: Direct assignments change the target `this` to here. Use with caution\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {HTMLElement|null} Selected HTML element or null\n     */\n    $ = _ui.$\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {string} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {HTMLElement[]} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$ = _ui.$$\n\n    /** Reference to the full ui library */\n    $ui = _ui\n\n    /** Add 1 or several class names to an element\n     * @param {string|string[]} classNames Single or array of classnames\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    addClass = _ui.addClass\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        return _ui.convertMarkdown\n    }\n\n    /** ASYNC: Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     */\n    async include(url, uiOptions) {\n        await _ui.include(url, uiOptions)\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        _ui.loadScriptSrc(url)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        _ui.loadStyleSrc(url)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        _ui.loadScriptTxt(textFn)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        _ui.loadStyleTxt(textFn)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        _ui.loadui(url)\n    }\n\n    /** Remove All, 1 or more class names from an element\n     * @param {undefined|null|\"\"|string|string[]} classNames Single or array of classnames. If undefined, \"\" or null, remove all classes\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    removeClass = _ui.removeClass\n\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        _ui.replaceSlot(el, component)\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        _ui.replaceSlotMarkdown(el, component)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        return _ui.sanitiseHTML(html)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) {\n        _ui.showDialog(type, ui, msg)\n    }\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        _ui.ui(json)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        return _ui.uiGet(cssSelector, propName)\n    }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} component Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, component) {\n        _ui.uiEnhanceElement(el, component)\n    }\n\n    //#endregion -- direct to _ui --\n\n    /** * Show/hide a display card on the end of the visible HTML that will dynamically display the last incoming msg from Node-RED\n     * The card has the id `uib_last_msg`. Updates are done from a listener set up in the start function.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showMsg(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowMsg\n        this.#isShowMsg = showHide\n        let slot = 'Waiting for a message from Node-RED'\n\n        if (this.msg && Object.keys(this.msg).length > 0) {\n            slot = this.syntaxHighlight(this.msg)\n        }\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_last_msg_wrap',\n                ],\n            })\n        } else {\n            _ui._uiReplace({\n                components: [\n                    {\n                        type: 'div',\n                        id: 'uib_last_msg_wrap',\n                        parent: parent,\n                        attributes: {\n                            title: 'Last message from Node-RED',\n                        },\n                        components: [\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.copyToClipboard(\"msg\")',\n                                    class: 'compact',\n                                    style: 'right:3em;',\n                                },\n                                slot: '\uD83D\uDCCB',\n                            },\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.showMsg()',\n                                    class: 'compact',\n                                    style: 'right:.5em;',\n                                },\n                                slot: '\u26D4',\n                            },\n                            {\n                                type: 'pre',\n                                id: 'uib_last_msg',\n                                // parent: 'uib_last_msg_wrap',\n                                attributes: {\n                                    class: 'syntax-highlight',\n                                },\n                                slot: slot,\n                            },\n                        ],\n                    },\n                ],\n            })\n        }\n\n        return showHide\n    }\n\n    /** Show a browser notification if possible.\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * @example uibuilder.notify( 'My simple message to the user' )\n     * @example uibuilder.notify( {topic: 'My Title', payload: 'My simple message to the user'} )\n     * @example uibuilder.notify( {title: 'My Title', body: 'My simple message to the user'} )\n     * @example // If config.return = true, a promise is returned.\n     * // The resolved promise is only returned if the notification is clicked by the user.\n     * // Can be used to send the response back to Node-RED\n     * uibuilder.notify(notifyConfig).then( res => uibuilder.eventSend(res) )\n     * @ref https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config data or simple message string\n     * @returns {Promise<Event>|null} A promise that resolves to the click event or null\n     */\n    notify(config) {\n        if (config.return) return _ui.notification(config)\n\n        _ui.notification(config)\n            .then( res => { // eslint-disable-line promise/always-return\n                log('info', 'Uib:notification', 'Notification completed event', res)()\n                // if (config.return) return res\n            })\n            .catch( err => {\n                log('error', 'Uib:notification', 'Notification error event', err)()\n            })\n        return null\n    }\n\n    /** Scroll the page\n     * https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollIntoView\n     * @param {string} [cssSelector] Optional. If not set, scrolls to top of page.\n     * @param {{block:(string|undefined),inline:(string|undefined),behavior:(string|undefined)}} [opts] Optional. DOM scrollIntoView options\n     * @returns {boolean} True if element was found, false otherwise\n     */\n    scrollTo(cssSelector, opts) {\n        // @ts-ignore\n        if (!opts) opts = {}\n        if (!cssSelector || cssSelector === 'top'  || cssSelector === 'start') cssSelector = 'body'\n        else if (cssSelector === 'bottom' || cssSelector === 'end') {\n            cssSelector = 'body'\n            opts.block = 'end'\n        }\n        const el = this.$(cssSelector)\n        if (el) {\n            el.scrollIntoView(opts)\n            return true\n        }\n        return false\n    }\n\n    /** Show/hide a display card on the end of the visible HTML that will dynamically display the current status of the uibuilder client\n     * The card has the id `uib_status`.\n     * The display is updated by an event listener created in the class constructor.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showStatus(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowStatus\n        this.#isShowStatus = showHide\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_status',\n                ],\n            })\n            return showHide\n        }\n\n        const root = {\n            components: [\n                {\n                    type: 'div',\n                    id: 'uib_status',\n                    parent: parent,\n                    attributes: {\n                        title: 'Current status of the uibuilder client',\n                        class: 'text-smaller',\n                    },\n                    components: [\n                        {\n                            'type': 'table',\n                            'components': [\n                                {\n                                    'type': 'tbody',\n                                    'components': []\n                                }\n                            ]\n                        }\n                    ]\n                }\n            ]\n        }\n        const details = root.components[0].components[0].components[0].components\n\n        Object.values(this.#showStatus).forEach( entry => {\n            details.push({\n                'type': 'tr',\n                'attributes': {\n                    title: entry.description,\n                },\n                'components': [\n                    {\n                        'type': 'th',\n                        'slot': entry.label,\n                    },\n                    {\n                        'type': 'td',\n                        'attributes': {\n                            'data-varType': entry.var,\n                        },\n                        'slot': entry.var === 'version' ? Uib._meta.version : JSON.stringify(this[entry.var]),\n                    }\n                ],\n            })\n        })\n\n        _ui._uiReplace(root)\n\n        return showHide\n    }\n\n    /** Use the Mutation Observer browser API to watch for changes to a single element on the page.\n     * OMG! It is sooo hard to turn the data into something that successfully serialises so it can be sent back to Node-RED!\n     * NB: Each cssSelector creates a unique watcher. Sending the same selector overwrites the previous one.\n     * @param {string} cssSelector A CSS Selector that selects the element to watch for changes\n     * @param {boolean|\"toggle\"} [startStop] true=start watching the DOM, false=stop. Default='toggle'\n     * @param {boolean} [send] true=Send changes to Node-RED, false=Don't send. Default=true\n     * @param {boolean} [showLog] true=Output changes to log, false=stop. Default=true. Log level is 2 (Info)\n     * @returns {boolean} True if the watch is on, false otherwise\n     */\n    uiWatch(cssSelector, startStop = 'toggle', send = true, showLog = true) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.querySelector(cssSelector)\n        if (!targetNode) {\n            log('warn', 'uibuilder.module.js:uiWatch', `CSS Selector '${cssSelector}' not found.`)()\n            return false\n        }\n\n        if (startStop === 'toggle' || startStop === undefined || startStop === null) {\n            if (this.#uiObservers[cssSelector]) startStop = false\n            else startStop = true\n        }\n\n        // Need a ref to the Uib this\n        const that = this\n\n        if (startStop === true) {\n            // Create an observer instance\n            this.#uiObservers[cssSelector] = new MutationObserver( function( mutationList /* , observer */ ) {\n                const out = []\n\n                mutationList.forEach( mu => {\n                    // console.log({ mu })\n                    const oMu = {\n                        type: mu.type,\n                        oldValue: mu.oldValue !== null ? mu.oldValue : undefined,\n                    }\n\n                    if (mu.addedNodes.length > 0) {\n                        oMu.addedNodes = []\n                        mu.addedNodes.forEach( (an, i) => {\n                            oMu.addedNodes.push(_ui.nodeGet(mu.addedNodes[i]))\n                        })\n                    }\n\n                    if (mu.removedNodes.length > 0) {\n                        oMu.removedNodes = []\n                        mu.removedNodes.forEach( (an, i) => {\n                            oMu.removedNodes.push(_ui.nodeGet(mu.removedNodes[i]))\n                        })\n                    }\n\n                    if ( mu.type === 'attributes' ) {\n                        oMu.attributeName = mu.attributeName\n                        // @ts-ignore\n                        oMu.newValue = mu.target.attributes[mu.attributeName].value\n                    }\n\n                    out.push(oMu)\n                })\n\n                // Custom event\n                that._dispatchCustomEvent('uibuilder:domChange', out)\n                // Send a msg back to node-red\n                if (send === true) {\n                    that.send({\n                        _ui: {\n                            cssSelector: cssSelector,\n                            uiChanges: out\n                        },\n                        topic: that.topic || `DOM Changes for '${cssSelector}'`,\n                    })\n                }\n                // Log to info\n                if (showLog === true) {\n                    log('info', 'uibuilder.module.js:uiWatch', `DOM Changes for '${cssSelector}'`, { uiChanges: out }, { mutationList })()\n                }\n            } )\n\n            // Start observing the target node for configured mutations\n            this.#uiObservers[cssSelector].observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:uiWatch', `Started Watching DOM changes for '${cssSelector}'`)()\n        } else {\n            this.#uiObservers[cssSelector].disconnect()\n            delete this.#uiObservers[cssSelector]\n            log('trace', 'uibuilder.module.js:uiWatch', `Stopped Watching DOM changes for '${cssSelector}'`)()\n        }\n\n        return startStop\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- HTML cache and DOM watch --------- //\n\n    /** Clear the saved DOM from localStorage */\n    clearHtmlCache() {\n        this.removeStore('htmlCache')\n        log('trace', 'uibuilder.module.js:clearHtmlCache', 'HTML cache cleared')()\n    }\n\n    /** Restore the complete DOM (the whole web page) from browser localStorage if available */\n    restoreHtmlFromCache() {\n        // Is the html cached? If so, restore it\n        const htmlCache = this.getStore('htmlCache')\n        if (htmlCache) {\n            const targetNode = document.getElementsByTagName('html')[0]\n            // Restore the entire HTML\n            targetNode.innerHTML = htmlCache\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'Restored HTML from cache')()\n        } else {\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'No cache to restore')()\n        }\n    }\n\n    /** Save the current DOM state to browser localStorage.\n     * localStorage is persistent and so can be recovered even after a browser restart.\n     */\n    saveHtmlCache() {\n        // Save the updated entire HTML in localStorage\n        this.setStore('htmlCache', document.documentElement.innerHTML)\n    }\n\n    /** Use the Mutation Observer browser API to watch for and save changes to the HTML\n     * Once the observer is created, it will be reused.\n     * Sending true or undefined will turn on the observer, false turns it off.\n     * saveHtmlCache is called whenever anything changes in the dom. This allows\n     * users to call restoreHtmlFromCache() on page load if desired to completely reload\n     * to the last saved state.\n     * @param {boolean} startStop true=start watching the DOM, false=stop\n     */\n    watchDom(startStop) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.documentElement\n\n        // Need a ref to the Uib this\n        const that = this\n\n        // Create an observer instance\n        if (!this._htmlObserver) {\n            this._htmlObserver = new MutationObserver( function(/* mutationList, observer */) {\n                // We don't need to know the details - so kill off any outstanding mutation records\n                this.takeRecords()\n                // Save the updated entire HTML in localStorage\n                that.saveHtmlCache()\n            } )\n        }\n\n        if (startStop === true || startStop === undefined) {\n            // Start observing the target node for configured mutations\n            this._htmlObserver.observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:watchDom', 'Started Watching and saving DOM changes')()\n        } else {\n            this._htmlObserver.disconnect()\n            log('trace', 'uibuilder.module.js:watchDom', 'Stopped Watching and saving DOM changes')()\n        }\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- Message Handling (To/From Node-RED) -------- //\n\n    /** Handles original control msgs (not to be confused with \"new\" msg._uib controls)\n     * @param {*} receivedCtrlMsg The msg received on the socket.io control channel\n     */\n    _ctrlMsgFromServer(receivedCtrlMsg) {\n\n        // Make sure that msg is an object & not null\n        if (receivedCtrlMsg === null) {\n            receivedCtrlMsg = {}\n        } else if (typeof receivedCtrlMsg !== 'object') {\n            const msg = {}\n            msg['uibuilderCtrl:' + this._ioChannels.control] = receivedCtrlMsg\n            receivedCtrlMsg = msg\n        }\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedCtrlMsg)\n\n        this.set('ctrlMsg', receivedCtrlMsg)\n        this.set('msgsCtrlReceived', ++this.msgsCtrlReceived)\n\n        log('trace', 'Uib:ioSetup:_ctrlMsgFromServer', `Channel '${this._ioChannels.control}'. Received control msg #${this.msgsCtrlReceived}`, receivedCtrlMsg)()\n\n        /** Process control msg types */\n        switch (receivedCtrlMsg.uibuilderCtrl) {\n            // Node-RED is shutting down\n            case 'shutdown': {\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, '\u274C Received \"shutdown\" from server')()\n                this.set('serverShutdown', undefined)\n                break\n            }\n\n            /** We are connected to the server - 1st msg from server */\n            case 'client connect': {\n                log('trace', `Uib:ioSetup:${this._ioChannels.control}`, 'Received \"client connect\" from server')()\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, `\u2705 Server connected. Version: ${receivedCtrlMsg.version}\\nServer time: ${receivedCtrlMsg.serverTimestamp}, Sever time offset: ${this.serverTimeOffset} hours`)()\n\n                if ( !Uib._meta.version.startsWith(receivedCtrlMsg.version.split('-')[0]) ) {\n                    log('warn', `Uib:ioSetup:${this._ioChannels.control}`, `Server version (${receivedCtrlMsg.version}) not the same as the client version (${Uib._meta.version})`)()\n                }\n\n                if (this.autoSendReady === true) { // eslint-disable-line no-lonely-if\n                    log('trace', `Uib:ioSetup:${this._ioChannels.control}/client connect`, 'Auto-sending ready-for-content/replay msg to server')\n                    // @since 0.4.8c Add cacheControl property for use with node-red-contrib-infocache\n                    // @since 6.1.0 Don't bother, we use the \"client connect\" msg\n                    // this._send({\n                    //     'uibuilderCtrl': 'ready for content',\n                    //     'cacheControl': 'REPLAY',\n                    // }, this._ioChannels.control)\n                }\n\n                break\n            }\n\n            default: {\n                log('trace', `uibuilderfe:ioSetup:${this._ioChannels.control}`, `Received ${receivedCtrlMsg.uibuilderCtrl} from server`)\n                // Anything else to do for other control msgs?\n            }\n        } // ---- End of process control msg types ---- //\n    } // -- End of websocket receive CONTROL msg from Node-RED -- //\n\n    /** Do we want to process something? Check pageName, clientId, tabId. Defaults to yes.\n     * @param {*} obj Either a msg._ui or msg._uib object to check\n     * @returns {boolean} True if we should process the inbound _ui/_uib msg, false if not.\n     */\n    _forThis(obj) {\n        let r = true\n\n        // Is this msg for this pageName?\n        if (obj.pageName && obj.pageName !== this.pageName) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this page')()\n            r = false\n        }\n\n        // Is this msg for this clientId?\n        if (obj.clientId && obj.clientId !== this.clientId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this clientId')()\n            r = false\n        }\n\n        // Is this msg for this tabId?\n        if (obj.tabId && obj.tabId !== this.tabId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this tabId')()\n            r = false\n        }\n\n        return r\n    }\n\n    // Handle received messages - Process some msgs internally, emit specific events on document that make it easy for coders to use\n    _msgRcvdEvents(msg) {\n        // Message received\n        this._dispatchCustomEvent('uibuilder:stdMsgReceived', msg)\n\n        // Topic\n        if ( msg.topic ) this._dispatchCustomEvent(`uibuilder:msg:topic:${msg.topic}`, msg)\n\n        // Handle msg._uib special requests\n        if (msg._uib) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._uib)) return\n\n            /** Process a client reload request from Node-RED - as the page is reloaded, everything else is ignored\n             * Note that msg._ui.reload is also actioned via the _ui processing below */\n            if (msg._uib.reload === true) {\n                log('trace', 'Uib:_msgRcvdEvents:_uib:reload', 'reloading')()\n                location.reload()\n                return\n            }\n\n            // Process msg._uib.command messages - allows Node-RED to run uibuilder FE functions\n            if (msg._uib.command) {\n                this._uibCommand(msg)\n                return\n            }\n\n            // Better to request via msg._ui - these are for backwards compatibility\n            if ( msg._uib.componentRef === 'globalNotification' ) {\n                _ui.showDialog('notify', msg._uib.options, msg)\n            }\n            if ( msg._uib.componentRef === 'globalAlert' ) {\n                _ui.showDialog('alert', msg._uib.options, msg)\n            }\n        }\n\n        // Handle msg._ui requests\n        if ( msg._ui ) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._ui)) return\n\n            log('trace', 'Uib:_msgRcvdEvents:_ui', 'Calling _uiManager')()\n            this._dispatchCustomEvent('uibuilder:msg:_ui', msg)\n            _ui._uiManager(msg)\n        }\n    } // --- end of _msgRcvdEvents ---\n\n    /** Internal send fn. Send a standard or control msg back to Node-RED via Socket.IO\n     * NR will generally expect the msg to contain a payload topic\n     * @param {object} msgToSend The msg object to send.\n     * @param {string} [channel=uiBuilderClient] The Socket.IO channel to use, must be in self.ioChannels or it will be ignored\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    _send(msgToSend, channel, originator = '') {\n        if (channel === null || channel === undefined) channel = this._ioChannels.client\n\n        // Make sure msgToSend is an object\n        if (channel === this._ioChannels.client) {\n            msgToSend = makeMeAnObject(msgToSend, 'payload')\n        } else if (channel === this._ioChannels.control) {\n            msgToSend = makeMeAnObject(msgToSend, 'uibuilderCtrl')\n            if (!Object.prototype.hasOwnProperty.call(msgToSend, 'uibuilderCtrl')) {\n                msgToSend.uibuilderCtrl = 'manual send'\n            }\n            // help remember where this came from as ctrl msgs can come from server or client\n            msgToSend.from = 'client'\n        }\n\n        /** since 2020-01-02 Added _socketId which should be the same as the _socketId on the server */\n        msgToSend._socketId = this._socket.id\n\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n\n        // Add the originator metadata if required\n        if (originator === '' && this.originator !== '') originator = this.originator\n        if (originator !== '') Object.assign(msgToSend, { '_uib': { 'originator': originator } })\n\n        // If the msg does not have a topic - see if we want to add one\n        if ( !Object.prototype.hasOwnProperty.call(msgToSend, 'topic') ) {\n            // From the default (`uibuilder.set('topic', 'some topic')`)\n            if (this.topic !== undefined && this.topic !== '') msgToSend.topic = this.topic\n            else {\n                // Did the last inbound msg have a topic?\n                if ( Object.prototype.hasOwnProperty.call(this, 'msg') && Object.prototype.hasOwnProperty.call(this.msg, 'topic') ) {\n                    msgToSend.topic = this.msg.topic\n                }\n            }\n        }\n\n        // If a standard send & _ui property exists, make sure to add _ui.from = 'client'\n        if (msgToSend._ui) msgToSend._ui.from = 'client'\n\n        // Track how many messages have been sent & last msg sent\n        let numMsgs\n        if (channel === this._ioChannels.client) {\n            this.set('sentMsg', msgToSend)\n            numMsgs = this.set('msgsSent', ++this.msgsSent)\n        } else if (channel === this._ioChannels.control) {\n            this.set('sentCtrlMsg', msgToSend)\n            numMsgs = this.set('msgsSentCtrl', ++this.msgsSentCtrl)\n        }\n        log('trace', 'Uib:_send', ` Channel '${channel}'. Sending msg #${numMsgs}`, msgToSend)()\n\n        this._socket.emit(channel, msgToSend)\n    } // --- End of Send Msg Fn --- //\n\n    /** Callback handler for messages from Node-RED\n     * NOTE: `this` is the class here rather the `socket` as would be normal since we bind the correct `this` in the call.\n     *       Use this._socket if needing reference to the socket.\n     * @callback ioSetupFromServer Called from ioSetup/this._socket.on(this.#ioChannels.server, this.stdMsgFromServer.bind(this))\n     * @param {object} receivedMsg The msg object from Node-RED\n     * @this Uib\n     */\n    _stdMsgFromServer(receivedMsg) {\n\n        // Make sure that msg is an object & not null\n        receivedMsg = makeMeAnObject(receivedMsg, 'payload')\n\n        // Don't process if the inbound msg is not for us\n        if (receivedMsg._uib && !this._forThis(receivedMsg._uib)) return\n        if (receivedMsg._ui && !this._forThis(receivedMsg._ui)) return\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedMsg)\n\n        // Track how many messages have been received\n        this.set('msgsReceived', ++this.msgsReceived)\n\n        // Emit specific document events on msg receipt that make it easy for coders to use\n        this._msgRcvdEvents(receivedMsg)\n\n        if ( !('_ui' in receivedMsg && !('payload' in receivedMsg)) ) {\n            // Save the msg for further processing\n            this.set('msg', receivedMsg)\n        }\n\n        log('info', 'Uib:ioSetup:stdMsgFromServer', `Channel '${this._ioChannels.server}'. Received msg #${this.msgsReceived}.`, receivedMsg)()\n\n        // ! NOTE: Don't try to handle specialist messages here. See _msgRcvdEvents.\n    } // -- End of websocket receive DATA msg from Node-RED -- //\n\n    /** Process msg._uib.command - Remember to update #extCommands with new allowed commands\n     * @param {object} msg Msg from Node-RED containing a msg._uib object\n     */\n    _uibCommand(msg) {\n        if (!msg._uib || !msg._uib.command) {\n            log('error', 'uibuilder:_uibCommand', 'Invalid command message received', { msg })()\n            msg.payload = msg.error = 'Invalid command message received'\n            this.send(msg)\n            return\n        }\n        const cmd = msg._uib.command\n        // Disallowed command request outputs error and ignores the msg (NB: Case must match)\n        if (!this.#extCommands.includes(cmd.trim())) {\n            log('error', 'Uib:_uibCommand', `Command '${cmd} is not allowed to be called externally`)()\n            return\n        }\n        const prop = msg._uib.prop\n        const value = msg._uib.value\n        const quiet = msg._uib.quiet ?? false\n        let response, info\n\n        // Don't forget to update `#extCommands`, `docs/client-docs/control-from-node-red.md` & `functions.md`\n        switch (cmd) {\n            case 'elementIsVisible': {\n                response = this.elementIsVisible(prop)\n                // info = `Element \"${prop}\" ${response ? 'is visible' : 'is not visible'}`\n                break\n            }\n\n            case 'elementExists': {\n                response = this.elementExists(prop, false)\n                info = `Element \"${prop}\" ${response ? 'exists' : 'does not exist'}`\n                break\n            }\n\n            case 'get': {\n                response = this.get(prop)\n                break\n            }\n\n            case 'getManagedVarList': {\n                if (prop === 'full') response = this.getManagedVarList()\n                else response = Object.values(this.getManagedVarList())\n                break\n            }\n\n            case 'getWatchedVars': {\n                if (prop === 'full') response = this.getWatchedVars()\n                else response = Object.values(this.getWatchedVars())\n                break\n            }\n\n            case 'htmlSend': {\n                response = this.htmlSend('', false)\n                break\n            }\n\n            case 'include': {\n                // include is async\n                response = _ui.include(prop, value)\n                break\n            }\n\n            case 'navigate': {\n                let newUrl\n                if (prop) newUrl = prop\n                else if (value) newUrl = value\n                response = this.navigate(newUrl)\n                break\n            }\n\n            case 'scrollTo': {\n                response = this.scrollTo(prop, value)\n                break\n            }\n\n            case 'set': {\n                let store = false\n                let autoload = false\n                if (msg._uib.options && msg._uib.options.store) {\n                    if (msg._uib.options.store === true) store = true\n                    if (msg._uib.options.autoload === true) autoload = true\n                }\n                response = this.set(prop, value, store, autoload)\n                break\n            }\n\n            case 'showMsg': {\n                response = this.showMsg(value, prop)\n                break\n            }\n\n            case 'showStatus': {\n                response = this.showStatus(value, prop)\n                break\n            }\n\n            case 'uiGet': {\n                response = _ui.uiGet(prop, value)\n                break\n            }\n\n            case 'uiWatch': {\n                response = this.uiWatch(prop)\n                break\n            }\n\n            case 'watchUrlHash': {\n                response = this.watchUrlHash(prop)\n                break\n            }\n\n            default: {\n                log('warning', 'Uib:_uibCommand', `Command '${cmd}' not yet implemented`)()\n                break\n            }\n        }\n\n        if (quiet !== true) {\n            if (response === undefined) {\n                response = `'${prop}' is undefined`\n            }\n            if (Object(response).constructor === Promise) {\n                // response = `'${cmd} ${prop}' submitted. Cmd is async, no response available`\n                response\n                    .then( (/** @type {any} */ data) => {\n                        msg.payload = msg._uib.response = data\n                        msg.info = msg._uib.info = info\n                        if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                        this.send(msg)\n                        return true\n                    })\n                    .catch( err => {\n                        log(0, 'Uib:_uibCommand', 'Error: ', err)()\n                    })\n            } else {\n                msg.payload = msg._uib.response = response\n                msg.info = msg._uib.info = info\n                if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                this.send(msg)\n            }\n        }\n    } // --- end of _uibCommand ---\n\n    /** Send log text to uibuilder's beacon endpoint (works even if socket.io not connected)\n     * @param {string} txtToSend Text string to send\n     * @param {string|undefined} logLevel Log level to use. If not supplied, will default to debug\n     */\n    beaconLog(txtToSend, logLevel) {\n        if (!logLevel) logLevel = 'debug'\n        navigator.sendBeacon('./_clientLog', `${logLevel}::${txtToSend}`)\n    }\n\n    /** Easily send the entire DOM/HTML msg back to Node-RED\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     * @param {boolean} [send] If true (default) directly send response to Node-RED. Is false when calling from Node-RED as a command.\n     * @returns {string} The HTML as a string\n     */\n    htmlSend(originator = '', send = true) {\n        const out = `<!doctype html>\\n${document.documentElement.outerHTML}`\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            payload: out,\n            length: out.length,\n            topic: this.topic,\n        }\n\n        log('trace', 'Uib:htmlSend', 'Sending full HTML to Node-RED', msg)()\n\n        if (send === true) this._send(msg, this._ioChannels.client, originator)\n        return out\n    }\n\n    /** Send log info back to Node-RED over uibuilder's websocket control output (Port #2)\n     * @param {...*} arguments All arguments passed to the function are added to the msg.payload\n     */\n    logToServer() {\n        this.sendCtrl({\n            uibuilderCtrl: 'client log message',\n            payload: arguments,\n            // \"version\":\"6.1.0-iife.min\",\n            _socketId: this._socket.id,\n            // \"ip\":\"::1\",\n            clientId: this.clientId,\n            tabId: this.tabId,\n            // \"url\":\"esp-test\",\n            pageName: this.pageName,\n            connections: this.connectedNum,\n            lastNavType: this.lastNavType,\n        })\n    }\n\n    /** Easily send a msg back to Node-RED on a DOM event\n     * @example In plain HTML/JavaScript\n     *    `<button id=\"button1\" name=\"button 1\" data-fred=\"jim\"></button>`\n     *    $('#button1').onclick = (evt) => {\n     *      uibuilder.eventSend(evt)\n     *    }\n     * @example\n     * In VueJS: `<b-button id=\"myButton1\" @click=\"doEvent\" data-something=\"hello\"></b-button>`\n     * In VueJS methods: `doEvent: uibuilder.eventSend,`\n     *\n     * All `data-` attributes will be passed back to Node-RED,\n     *    use them instead of arguments in the click function.\n     *    All target._ui custom properties are also passed back to Node-RED.\n     *\n     * @param {MouseEvent|any} domevent DOM Event object\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    eventSend(domevent, originator = '') { // eslint-disable-line sonarjs/cognitive-complexity\n        // @ts-ignore Handle case where vue messes up `this`\n        if ( this.$attrs ) {\n            log('error', 'Uib:eventSend', '`this` has been usurped by VueJS. Make sure that you wrap the call in a function: `doEvent: function (event) { uibuilder.eventSend(event) },`' )()\n            return\n        }\n        if (!domevent && !event) {\n            log('warn', 'Uib:eventSend', 'Neither the domevent nor the hidden event properties are set. You probably called this function directly rather than applying to an on click event.' )()\n            return\n        }\n        // Handle no argument, e.g. <button onClick=\"uibuilder.eventSend()\"> - event is a hidden variable when fn used in addEventListener\n        if (!domevent || !domevent.constructor) domevent = event\n\n        // The argument must be a DOM event\n        if ((!domevent.constructor.name.endsWith('Event')) || (!domevent.currentTarget)) {\n            log('warn', 'Uib:eventSend', `ARGUMENT NOT A DOM EVENT - use data attributes not function arguments to pass data. Arg Type: ${domevent.constructor.name}`, domevent)()\n            return\n        }\n\n        // Prevent default event action\n        domevent.preventDefault()\n\n        // The target element\n        const target = domevent.currentTarget\n\n        // Get target properties - only shows custom props not element default ones\n        const props = {}\n        Object.keys(target).forEach( key => {\n            if (key.startsWith('_')) return // Exclude private\n            props[key] = target[key]\n        })\n\n        // Attempt to get target attributs - can fail for certain target types\n        const ignoreAttribs = ['class', 'id', 'name']\n        let attribs\n        try {\n            attribs = Object.assign({},\n                ...Array.from(target.attributes,\n                    ( { name, value } ) => {\n                        if ( !ignoreAttribs.includes(name) ) {\n                            return ({ [name]: value })\n                        }\n                        return undefined\n                    }\n                )\n            )\n        } catch (e) {}\n\n        // If target embedded in a form, include the form data\n        let form\n        const frmVals = []\n        if ( target.form ) {\n            form = {}\n            form.valid = target.form.checkValidity()\n            Object.values(target.form).forEach( (frmEl, i) => {\n                const id = frmEl.id !== '' ? frmEl.id : (frmEl.name !== '' ? frmEl.name : `${i}-${frmEl.type}`)\n\n                // We must have both an element id (we may have forced one above) AND\n                // the element type MUST be not undefined - to allow for the extra properties added by frameworks such as Svelte\n                if (id !== '' && frmEl.type) {\n                    // Stupid HTML doesn't use value attrib for checkboxes. So override if value is set to default\n                    if ('checked' in frmEl && frmEl.value === 'on') frmEl.value = frmEl.checked.toString()\n\n                    frmVals.push( { key: id, val: frmEl.value } ) // simplified for addition to msg.payload\n\n                    form[id] = {\n                        'id': frmEl.id,\n                        'name': frmEl.name,\n                        'value': frmEl.value,\n                        'valid': frmEl.checkValidity(),\n                        'type': frmEl.type,\n                    }\n\n                    if (form[id].valid === false) {\n                        const v = frmEl.validity\n                        form[id].validity = {\n                            badInput: v.badInput === true ? v.badInput : undefined,\n                            customError: v.customError === true ? v.customError : undefined,\n                            patternMismatch: v.patternMismatch === true ? v.patternMismatch : undefined,\n                            rangeOverflow: v.rangeOverflow === true ? v.rangeOverflow : undefined,\n                            rangeUnderflow: v.rangeUnderflow === true ? v.rangeUnderflow : undefined,\n                            stepMismatch: v.stepMismatch === true ? v.stepMismatch : undefined,\n                            tooLong: v.tooLong === true ? v.tooLong : undefined,\n                            tooShort: v.tooShort === true ? v.tooShort : undefined,\n                            typeMismatch: v.typeMismatch === true ? v.typeMismatch : undefined,\n                            valueMissing: v.valueMissing === true ? v.valueMissing : undefined,\n                        }\n                    }\n\n                    if (frmEl.dataset) form[id].data = frmEl.dataset\n                }\n            })\n        }\n\n        // Check for CSS Classes\n        let classes\n        try {\n            classes = Array.from(target.classList)\n        } catch (e) {}\n\n        // Each `data-xxxx` attribute is added as a property\n        let payload = { ...target.dataset }\n\n        // Handle Notification events\n        let nprops\n        if ( Object.prototype.toString.call(target) === '[object Notification]') {\n            // Fixed payload for convenience\n            payload = `notification-${target.userAction}`\n            // Capture the notification properties\n            nprops = {\n                // userAction: target.userAction, // uib custom prop: click, close or error\n                actions: target.actions,\n                badge: target.badge,\n                body: target.body,\n                data: target.data,\n                dir: target.dir,\n                icon: target.icon,\n                image: target.image,\n                lang: target.lang,\n                renotify: target.renotify,\n                requireInteraction: target.requireInteraction,\n                silent: target.silent,\n                tag: target.tag,\n                timestamp: target.timestamp,\n                title: target.title,\n                vibrate: target.vibrate,\n            }\n        }\n        // console.log(Object.prototype.toString.call(target))\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            // - this may be an empty Object if no data attributes defined\n            payload: payload,\n\n            _ui: {\n                type: 'eventSend',\n                id: target.id !== '' ? target.id : undefined,\n                name: target.name !== '' ? target.name : undefined,\n                slotText: target.textContent ? target.textContent.substring(0, 255) : undefined,\n\n                form: form,\n                props: props,\n                attribs: attribs,\n                classes: classes,\n\n                notification: nprops,\n\n                event: domevent.type,\n                altKey: domevent.altKey,\n                ctrlKey: domevent.ctrlKey,\n                shiftKey: domevent.shiftKey,\n                metaKey: domevent.metaKey,\n\n                pointerType: domevent.pointerType,\n                nodeName: target.nodeName,\n\n                clientId: this.clientId,\n                pageName: this.pageName,\n                tabId: this.tabId,\n            }\n        }\n\n        if (frmVals.length > 0) {\n            frmVals.forEach( entry => {\n                msg.payload[entry.key] = entry.val\n            })\n        }\n\n        if (domevent.type === 'change') {\n            // Checkboxes don't have a value!!\n            msg._ui.newValue = msg.payload.value = 'checked' in target ? target.checked : domevent.target.value\n        }\n\n        log('trace', 'Uib:eventSend', 'Sending msg to Node-RED', msg)()\n        if (target.dataset && target.dataset.length === 0) log('warn', 'Uib:eventSend', 'No payload in msg. data-* attributes should be used.')()\n\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Send a standard message to NR\n     * @example uibuilder.send({payload:'Hello'})\n     * @param {object} msg Message to send\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    send(msg, originator = '') {\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Send a control msg to NR\n     * @param {object} msg Message to send\n     */\n    sendCtrl(msg) {\n        this._send(msg, this._ioChannels.control)\n    }\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Socket.IO -------- //\n\n    /** Return the Socket.IO namespace\n     * The cookie method is the most reliable but this falls back to trying to work it\n     * out from the URL if cookies not available. That won't work if page is in a sub-folder.\n     * since 2017-10-21 Improve method to cope with more complex paths - thanks to Steve Rickus @shrickus\n     * since 2017-11-10 v1.0.1 Check cookie first then url. cookie works even if the path is more complex (e.g. sub-folder)\n     * since 2020-01-25 Removed httpRoot from namespace to prevent proxy induced errors\n     * @returns {string} Socket.IO namespace\n     */\n    _getIOnamespace() {\n\n        let ioNamespace\n\n        /** Try getting the namespace cookie. */\n        ioNamespace = this.cookies['uibuilder-namespace']\n\n        // if it wasn't available, try using the current url path\n        if (ioNamespace === undefined || ioNamespace === '') {\n            // split url path & eliminate any blank elements, and trailing or double slashes\n            const u = window.location.pathname.split('/')\n                .filter(function (t) { return t.trim() !== '' })\n\n            /** since v2.0.5 Extra check for 0 length, Issue #73. since 2017-11-06 If the last element of the path is an .html file name, remove it */\n            if (u.length > 0 && (u[u.length - 1].endsWith('.html'))) u.pop()\n\n            // Get the last part of the url path, this MUST match the namespace in uibuilder\n            ioNamespace = u.pop()\n\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via url path: ${ioNamespace}`)()\n        } else {\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via cookie: ${ioNamespace}`)()\n        }\n\n        this.url = ioNamespace\n        // Namespace HAS to start with a /\n        ioNamespace = '/' + ioNamespace\n\n        log('trace', 'uibuilder.module.js:getIOnamespace', `Final Socket.IO namespace: ${ioNamespace}`)()\n\n        return ioNamespace\n    } // --- End of set IO namespace --- //\n\n    /** Function used to check whether Socket.IO is connected to the server, reconnect if not (recursive)\n     * @param {number} [delay] Initial delay before checking (ms). Default=2000ms\n     * @param {number} [factor] Multiplication factor for subsequent checks (delay*factor). Default=1.5\n     * @param {number} [depth] Recursion depth\n     * @returns {boolean|undefined} Whether or not Socket.IO is connected to uibuilder in Node-RED\n     */\n    _checkConnect(delay, factor, depth = 1) {\n        if ( navigator.onLine === false ) return // Don't bother if we know we are offline\n\n        if (!delay) delay = this.retryMs\n        if (!factor) factor = this.retryFactor\n\n        log('trace', 'Uib:checkConnect', `Checking connection. Connected: ${this._socket.connected}. Timer: ${this.#timerid}. Depth: ${depth}. Delay: ${delay}. Factor: ${factor}`, this._socket)()\n\n        // If we are connected ...\n        if (this._socket.connected === true) {\n            // Clear the setTimeout\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this.set('ioConnected', true)\n            this.set('socketError', null)\n            return true\n        }\n\n        // ... we aren't connected so:\n        this.set('ioConnected', false)\n\n        // we only want one running at a time\n        if (this.#timerid) window.clearTimeout(this.#timerid)\n\n        // Create the new timer\n        this.#timerid = window.setTimeout(() => {\n            log('warn', 'Uib:checkConnect:setTimeout', `Socket.IO reconnection attempt. Current delay: ${delay}. Depth: ${depth}`)()\n\n            // this is necessary sometimes when the socket fails to connect on startup\n            this._socket.close()\n\n            // Try to reconnect\n            this._socket.connect()\n\n            // don't need to check whether we have connected as the timer will have been cleared if we have\n            this.#timerid = null\n\n            // @ts-ignore Create new timer for next time round with extended delay\n            this._checkConnect(delay * factor, factor, depth++)\n        }, delay)\n\n        return false\n    } // --- End of checkConnect Fn--- //\n\n    // See message handling section for msg receipt handlers\n\n    /** Called by _ioSetup when Socket.IO connects to Node-RED */\n    _onConnect() {\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n        log('info', 'Uib:ioSetup', `\u2705 SOCKET CONNECTED. Connection count: ${this.connectedNum}, Is a Recovery?: ${this._socket.recovered}. \\nNamespace: ${this.ioNamespace}`)()\n        this._dispatchCustomEvent('uibuilder:socket:connected', { 'numConnections': this.connectedNum, 'isRecovery': this._socket.recovered })\n\n        this._checkConnect() // resets any reconnection timers & sets connected flag\n    }\n\n    /** Called by _ioSetup when Socket.IO disconnects from Node-RED\n     * @param {string} reason Disconnection title\n     */\n    _onDisconnect(reason) {\n        // reason === 'io server disconnect' - redeploy of Node instance\n        // reason === 'transport close' - Node-RED terminating\n        // reason === 'ping timeout' - didn't receive a pong response?\n        log('info', 'Uib:ioSetup:socket-disconnect', `\u26D4 Socket Disconnected. Reason: ${reason}`)()\n\n        this._dispatchCustomEvent('uibuilder:socket:disconnected', reason)\n\n        /** A workaround for SIO's failure to reconnect after a disconnection */\n        this._checkConnect()\n    }\n\n    /** Setup Socket.io\n     * since v2.0.0-beta2 Moved to a function and called by the user (uibuilder.start()) so that namespace & path can be passed manually if needed\n     * @returns {boolean} Attaches socket.io manager to self._socket and updates self.ioNamespace & self.ioPath as needed\n     */\n    _ioSetup() {\n\n        // Just a notification, actual load is done outside the class (see start of file)\n        if (io === undefined) {\n            log('error', 'Uib:ioSetup', 'Socket.IO client not loaded, Node-RED comms will not work')()\n            return false\n        }\n\n        // If socket is already set up, close it and remove all of the listeners\n        if (this._socket) {\n            log('trace', 'Uib:ioSetup', 'Removing listeners in preparation for redoing Socket.IO connections')()\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this._socket.close()\n            this._socket.offAny()\n            this._socket = undefined\n            this.set('ioConnected', false)\n        }\n\n        // Update the URL path to make sure we have the right one\n        this.socketOptions.path = this.ioPath\n\n        // NOTE: this._socket.auth is now set by callback and so automatically updated for each client (re)connection. No need to set here\n\n        // Create the socket - make sure client uses Socket.IO version from the uibuilder module (using path)\n        log('trace', 'Uib:ioSetup', `About to create IO object. Transports: [${this.socketOptions.transports.join(', ')}]`)()\n        this._socket = io(this.ioNamespace, this.socketOptions)\n\n        /** When the socket is connected - set ioConnected flag and reset connect timer  */\n        this._socket.on('connect', this._onConnect.bind(this))\n\n        // RECEIVE a STANDARD, non-control msg from Node-RED server\n        this._socket.on(this._ioChannels.server, this._stdMsgFromServer.bind(this))\n\n        // RECEIVE a CONTROL msg from Node-RED server - see also sendCtrl()\n        this._socket.on(this._ioChannels.control, this._ctrlMsgFromServer.bind(this))\n\n        // When the socket is disconnected ..............\n        this._socket.on('disconnect', this._onDisconnect.bind(this))\n\n        // Socket.io connection error - probably the wrong ioPath - or client is offline\n        this._socket.on('connect_error', (err) => {\n            if ( navigator.onLine === false ) return // Don't bother with an error if we know we are offline\n            log('error', 'Uib:ioSetup:connect_error', `\u274C Socket.IO Connect Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket connect error processing ---\n\n        // Socket.io error - from the server (socket.use middleware triggered an error response)\n        this._socket.on('error', (err) => {\n            log('error', 'Uib:ioSetup:error', `\u274C Socket.IO Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket error processing ---\n\n        // Ensure we are connected, retry if not\n        this._checkConnect()\n\n        return true\n\n        /* We really don't need these, just for interest\n            self._socket.io.on('packet', function onPacket(data){\n                // we get one of these for each REAL msg (not ping/pong)\n                console.debug('PACKET', data)\n            })\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n                //console.dir(self._socket)\n            }) // --- End of socket pong processing ---\n            self._socket.io.on('packet', function(data){\n                // We get one of these for actual messages, not ping/pong\n                console.debug('PACKET', data)\n            })\n            self._socket.on('connect_timeout', function(timeout) {\n                console.debug('SOCKET CONNECT TIMEOUT - Namespace: ' + ioNamespace + ', Timeout: ' + timeout)\n            }) // --- End of socket connect timeout processing ---\n            self._socket.on('reconnect', function(attemptNum) {\n                console.debug('SOCKET RECONNECTED - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect processing ---\n            self._socket.on('reconnect_attempt', function(attemptNum) {\n                console.debug('SOCKET RECONNECT ATTEMPT - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect_attempt processing ---\n            self._socket.on('reconnecting', function(attemptNum) {\n                console.debug('SOCKET RECONNECTING - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnecting processing ---\n            self._socket.on('reconnect_error', function(err) {\n                console.debug('SOCKET RECONNECT ERROR - Namespace: ' + ioNamespace + ', Reason: ' + err.message)\n                //console.dir(err)\n            }) // --- End of socket reconnect_error processing ---\n            self._socket.on('reconnect_failed', function() {\n                console.debug('SOCKET RECONNECT FAILED - Namespace: ' + ioNamespace)\n            }) // --- End of socket reconnect_failed processing ---\n            self._socket.on('ping', function() {\n                console.debug('SOCKET PING')\n            }) // --- End of socket ping processing ---\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n            }) // --- End of socket pong processing ---\n            */\n    } // ---- End of ioSetup ---- //\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Class construction & startup method -------- //\n\n    constructor() {\n        log('trace', 'Uib:constructor', 'Starting')()\n\n        // Track whether the client is online or offline\n        window.addEventListener('offline', (e) => {\n            this.set('online', false)\n            this.set('ioConnected', false)\n            log('warn', 'Browser', 'DISCONNECTED from network')()\n        })\n        window.addEventListener('online', (e) => {\n            this.set('online', true)\n            log('warn', 'Browser', 'Reconnected to network')()\n            this._checkConnect()\n        })\n\n        document.cookie.split(';').forEach((c) => {\n            const splitC = c.split('=')\n            this.cookies[splitC[0].trim()] = splitC[1]\n        })\n\n        /** Client ID set by uibuilder - lasts until browser profile is closed, applies to all tabs */\n        this.set('clientId', this.cookies['uibuilder-client-id'])\n        log('trace', 'Uib:constructor', 'Client ID: ', this.clientId)()\n\n        /** Tab ID - lasts while the tab is open (even if reloaded)\n         * WARNING: Duplicating a tab retains the same tabId\n         */\n        this.set('tabId', window.sessionStorage.getItem('tabId'))\n        if (!this.tabId) {\n            this.set('tabId', `t${Math.floor(Math.random() * 1000000)}`)\n            window.sessionStorage.setItem('tabId', this.tabId)\n        }\n\n        // document.addEventListener('pagehide', (event) => {\n        //     // console.log(`pagehide. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pagehide. From Cache?: ${event.persisted}`)\n        // })\n        // document.addEventListener('pageshow', (event) => {\n        //     // console.log(`pageshow. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pageshow. From Cache?: ${event.persisted}`)\n        // })\n        document.addEventListener('load', () => {\n            this.set('isVisible', true)\n        })\n        document.addEventListener('visibilitychange', () => {\n            // hidden=unload, minimise. visible=un-minimise (not fired on load)\n            this.set('isVisible', document.visibilityState === 'visible')\n            this.sendCtrl({ uibuilderCtrl: 'visibility', isVisible: this.isVisible })\n            // navigator.userActivation is experimental Chromium only\n            // console.log('visibilitychange', ':', `Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n            // navigator.sendBeacon('./_clientLog', `${(new Date()).toISOString()} Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n        })\n\n        // Set a listener to update showStatus table if it is active\n        document.addEventListener('uibuilder:propertyChanged', (event) => {\n            if (!this.#isShowStatus) return\n\n            // @ts-ignore\n            if (event.detail.prop in this.#showStatus) {\n                // @ts-ignore\n                document.querySelector(`td[data-vartype=\"${event.detail.prop}\"]`).innerText = JSON.stringify(event.detail.value)\n            }\n        })\n\n        this.set('ioNamespace', this._getIOnamespace())\n\n        //#region - Try to make sure client uses Socket.IO client version from the uibuilder module (using cookie or path) @since v2.0.0 2019-02-24 allows for httpNodeRoot\n\n        /** httpNodeRoot (to set path) */\n        if ('uibuilder-webRoot' in this.cookies) {\n            this.set('httpNodeRoot', this.cookies['uibuilder-webRoot'])\n            log('trace', 'Uib:constructor', `httpNodeRoot set by cookie to \"${this.httpNodeRoot}\"`)()\n        } else {\n            // split current url path, eliminate any blank elements and trailing or double slashes\n            const fullPath = window.location.pathname.split('/').filter(function (t) { return t.trim() !== '' })\n            /** handle url includes file name - @since v2.0.5 Extra check for 0 length, Issue #73. */\n            if (fullPath.length > 0 && fullPath[fullPath.length - 1].endsWith('.html')) fullPath.pop()\n            fullPath.pop() // gives the last path section of the url\n            this.set('httpNodeRoot', `/${fullPath.join('/')}`)\n            log('trace', '[Uib:constructor]', `httpNodeRoot set by URL parsing to \"${this.httpNodeRoot}\". NOTE: This may fail for pages in sub-folders.`)()\n        }\n        this.set('ioPath', urlJoin(this.httpNodeRoot, Uib._meta.displayName, 'vendor', 'socket.io'))\n        log('trace', 'Uib:constructor', `ioPath: \"${this.ioPath}\"`)()\n\n        //#endregion\n\n        // Work out pageName\n        this.set('pageName', window.location.pathname.replace(`${this.ioNamespace}/`, ''))\n        if ( this.pageName.endsWith('/') ) this.set('pageName', `${this.pageName}index.html`)\n        if ( this.pageName === '' ) this.set('pageName', 'index.html')\n\n        // Attempt to restore autoload variables\n        try {\n            const autoloadVars = this.getStore('_uibAutoloadVars')\n            if (Object.keys(autoloadVars).length > 0) {\n                Object.keys(autoloadVars).forEach( (id) => {\n                    this.set(id, this.getStore(id))\n                })\n            }\n        } catch (e) {}\n\n        this._dispatchCustomEvent('uibuilder:constructorComplete')\n\n        log('trace', 'Uib:constructor', 'Ending')()\n    }\n\n    /** Start up Socket.IO comms and listeners\n     * This has to be done separately because if running from a web page in a sub-folder of src/dist, uibuilder cannot\n     * necessarily work out the correct ioPath to use.\n     * Also, if cookies aren't permitted in the browser, both ioPath and ioNamespace may need to be specified.\n     * @param {object} [options] The start options object.\n     * @returns {void}\n     */\n    start(options) {\n        log('trace', 'Uib:start', 'Starting')()\n\n        // Cancel the msg event handler if already present\n        if ( this.#MsgHandler ) this.cancelChange('msg', this.#MsgHandler)\n\n        if (this.started === true) {\n            log('info', 'Uib:start', 'Start function already called. Resetting Socket.IO and msg handler.')()\n        }\n\n        log('log', 'Uib:start', 'Cookies: ', this.cookies, `\\nClient ID: ${this.clientId}`)()\n        log('trace', 'Uib:start', 'ioNamespace: ', this.ioNamespace, `\\nioPath: ${this.ioPath}`)()\n\n        // Handle options\n        if (options) {\n            if (options.ioNamespace) this.set('ioNamespace', options.ioNamespace)\n            if (options.ioPath) this.set('ioPath', options.ioPath)\n            if (options.nopolling && this.socketOptions.transports[0] === 'polling') this.socketOptions.transports.shift()\n            // See below for handling of options.loadStylesheet\n        }\n\n        // Do we need to load styles?\n        if ( document.styleSheets.length >= 1 || (document.styleSheets.length === 1 && document.styleSheets[0].cssRules.length === 0) ) {\n            log('info', 'Uib:start', 'Styles already loaded so not loading uibuilder default styles.')()\n        } else {\n            if (options && options.loadStylesheet === false) log('info', 'Uib:start', 'No styles loaded & options.loadStylesheet === false.')()\n            else {\n                log('info', 'Uib:start', 'No styles loaded, loading uibuilder default styles.')()\n                this.loadStyleSrc(`${this.httpNodeRoot}/uibuilder/uib-brand.min.css`)\n            }\n        }\n\n        /** Handle specialist messages like reload and _ui -> Moved to _msgRcvdEvents */\n\n        // Track last browser navigation type: navigate, reload, back_forward, prerender\n        // TODO Needs more work - updates on navigation needed?\n        const [entry] = performance.getEntriesByType('navigation')\n        // @ts-ignore\n        this.set('lastNavType', entry.type)\n\n        // Start up (or restart) Socket.IO connections and listeners. Returns false if io not found\n        this.set('started', this._ioSetup())\n\n        if ( this.started === true ) {\n            log('trace', 'Uib:start', 'Start completed. Socket.IO client library loaded.')()\n        } else {\n            log('error', 'Uib:start', 'Start completed. ERROR: Socket.IO client library NOT LOADED.')()\n        }\n\n        // Watch for URL hash changes in case using a front-end router. Updates watched var `urlHash` and socket.io `auth.urlHash`\n        this._watchHashChanges()\n\n        // Check if Vue is present (used for dynamic UI processing)\n        if (window['Vue']) {\n            this.set('isVue', true)\n            try {\n                this.set('vueVersion', window['Vue'].version)\n            } catch (e) { }\n            log('trace', 'Uib:start', `VueJS is loaded. Version: ${this.vueVersion}`)()\n        } else {\n            log('trace', 'Uib:start', 'VueJS is not loaded.')()\n        }\n\n        // Check if DOMPurify library is loaded\n        if (window['DOMPurify']) {\n            this.set('purify', true)\n            log('trace', 'Uib:start', 'DOMPurify is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'DOMPurify is not loaded.')()\n        }\n        // Check if Markdown-IT library is loaded\n        if (window['markdownit']) {\n            this.set('markdown', true)\n            log('trace', 'Uib:start', 'Markdown-IT is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'Markdown-IT is not loaded.')()\n        }\n\n        // if (window['DOMPurify']) {\n        //     this.set('purify', true)\n        //     log('trace', 'Uib:start', 'DOMPurify is loaded.')\n        // } else {\n        //     log('trace', 'Uib:start', 'DOMPurify is not loaded.')\n        // }\n\n        // Set up msg listener for the optional showMsg\n        this.onChange('msg', (msg) => {\n            if (this.#isShowMsg === true) {\n                const eMsg = document.getElementById('uib_last_msg')\n                if (eMsg) eMsg.innerHTML = this.syntaxHighlight(msg)\n            }\n        })\n\n        this._dispatchCustomEvent('uibuilder:startComplete')\n    }\n\n    //#endregion -------- ------------ -------- //\n} // ==== End of Class Uib ====\n\n//#region --- Wrap up - get things started ---\n\n// Create an instance (we will only ever want one)\nconst uibuilder = new Uib()\n\n// Assign reference to the instance to the global `window` object\n// Only useful if loading via <script> tag - prefer loading via `import uibuilder from ...`\nif (!window['uibuilder']) {\n    window['uibuilder'] = uibuilder\n} else {\n    log('error', 'uibuilder.module.js', '`uibuilder` already assigned to window. Have you tried to load it more than once?')\n}\nif (!window['uib']) {\n    window['uib'] = uibuilder\n} else {\n    log('warn', 'uibuilder.module.js', '`uib` shortcut already assigned to window.')\n}\n\n// Assign `$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$`.\nif (!window['$']) {\n    /** @type {HTMLElement} */\n    window['$'] = window['uibuilder'].$ // document.querySelector.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` or `uib.$` instead.')\n}\n// Assign `$$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$$']) {\n    /** @type {HTMLElement} */\n    window['$$'] = window['uibuilder'].$$ // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` or `uib.$$` instead.')\n}\n\n// Assign `$ui` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$ui']) {\n    /** @type {HTMLElement} */\n    window['$ui'] = window['uibuilder'].$ui // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$ui`, it is already in use. Use `uibuilder.$ui` or `uib.$ui` instead.')\n}\n\n// Can import as `import uibuilder from ...` OR `import {uibuilder} from ...`\nexport { uibuilder }\nexport default uibuilder\n\n// Attempt to run start fn\nuibuilder.start()\n\n// Add the class as a new Custom Element to the window object\ncustomElements.define('uib-var', UibVar)\n\n//#endregion --- Wrap up ---\n\n// EOF\n", "/** A zero dependency web component that will display a managed uibuilder variable.\n *\n * Version: 0.0.1 2023-10-07\n *\n * ToDo:\n * -\n */\n/*\n  Copyright (c) 2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n// const template = document.createElement('template')\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<link type=\"text/css\" rel=\"stylesheet\" href=\"\"../uibuilder/uib-brand.min.css\"\" media=\"all\"><span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`\n// {/* <style>@import url(\"../uibuilder/uib-brand.min.css\");</style><span></span> */}\n// `\n\nexport default class UibVar extends HTMLElement {\n    //#region --- Class Properties ---\n    /** @type {string} Name of the uibuilder mangaged variable to use */\n    variable\n    /** Current value of the watched variable */\n    value\n    /** Whether to output if the variable is undefined */\n    undefined = false\n    /** Whether to send update value to Node-RED on change */\n    report = false\n    /** What is the value type */\n    type = 'plain'\n    /** what are the available types? */\n    types = ['plain', 'html', 'markdown', 'object']\n\n    /** Mini jQuery-like shadow dom selector (see constructor) */\n    $\n    \n    /** Holds a count of how many instances of this component are on the page */\n    static _iCount = 0\n    /** @type {Array<string>} List of all of the html attribs (props) listened to */\n    static props = ['name', 'id', 'variable', 'undefined', 'report', 'type']\n    //#endregion --- Class Properties ---\n\n    constructor() {\n        super()\n        this.shadow = this.attachShadow({ mode: 'open', delegatesFocus: true })\n            // .append(template.content.cloneNode(true))\n\n        this.$ = this.shadowRoot.querySelector.bind(this.shadowRoot)\n\n        // Apply external styles to the shadow dom\n        this.css = document.createElement(\"link\")\n        this.css.setAttribute(\"type\", \"text/css\")\n        this.css.setAttribute(\"rel\", \"stylesheet\")\n        this.css.setAttribute(\"href\", \"../uibuilder/uib-brand.min.css\")\n\n        this.dispatchEvent(new Event(`uib-var:construction`, { bubbles: true, composed: true }))\n    }\n\n    // Makes HTML attribute change watched\n    static get observedAttributes() {\n        return UibVar.props\n    }\n\n    /** NOTE: On initial startup, this is called for each watched attrib set in HTML - BEFORE connectedCallback is called  */\n    attributeChangedCallback(attrib, oldVal, newVal) {\n        if ( oldVal === newVal ) return\n\n        switch (attrib) {\n            case 'variable': {\n                if (newVal === '') throw new Error('[uib-var] Attribute \"variable\" MUST be set to a UIBUILDER managed variable name')\n                this.variable = newVal\n                this.doWatch()\n                break\n            }\n            case 'undefined': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.undefined = true\n                else this.undefined = false\n                break\n            }\n            case 'report': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.report = true\n                else this.report = false\n                break\n            }\n            case 'type': {\n                if (newVal === '' || !this.types.includes(newVal.toLowerCase())) this.type = 'plain'\n                else this.type = newVal\n                break\n            }\n\n            default: {\n                this[attrib] = newVal\n                break\n            }\n        }\n    } // --- end of attributeChangedCallback --- //\n\n    // Runs when an instance is added to the DOM\n    connectedCallback() {\n        // Make sure instance has an ID. Create an id from name or calculation if needed\n        if (!this.id) {\n            if (!this.name) this.name = this.getAttribute('name')\n            if (this.name) this.id = this.name.toLowerCase().replace(/\\s/g, '_')\n            else this.id = `uib-var-${++UibVar._iCount}`\n        }\n    }  // ---- end of connectedCallback ---- //\n\n    // Runs when an instance is removed from the DOM\n    // disconnectedCallback() {} // ---- end of disconnectedCallback ---- //\n\n    /** Process changes to the required uibuilder variable */\n    doWatch() {\n        if (!this.variable) throw new Error('No variable name provided')\n        // if (!window['uibuilder']) throw new Error('UIBUILDER client library not loaded - this component must be loaded AFTER the UIBUILDER library')\n\n        this.value = window['uibuilder'].get(this.variable)\n        this.varDom()\n\n        // Watch for changes in the variable\n        window['uibuilder'].onChange(this.variable, (val) => {\n            this.value = val\n            this.varDom()\n            if (this.report === true) window['uibuilder'].send({topic: this.variable, payload: this.value || undefined})\n        })\n    }\n\n    /** Convert this.value to DOM output */\n    varDom() {\n        // If user doesn't want to show undefined vars, allow the component slot to show instead\n        if (this.value === undefined && this.undefined !== true) { \n            this.shadow.innerHTML = '<slot></slot>'\n            return\n        }\n        \n        let val = this.value\n\n        // console.log('\uD83E\uDDEA varDOM: ', val, typeof val, this.type)\n\n        switch (this.type) {\n            case 'markdown': {\n                this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(window['uibuilder'].convertMarkdown(val))\n                break\n            }\n        \n            case 'object': {\n                // console.log(window['uibuilder'].syntaxHighlight(val))\n                this.shadow.innerHTML = `<pre class=\"syntax-highlight\">${window['uibuilder'].syntaxHighlight(val)}</pre>`\n                break\n            }\n        \n            case 'plain':\n            case 'html':\n            default: {\n                const t = typeof val\n                if (Array.isArray(val) || t === '[object Object]' || t === 'object') {\n                    try {\n                        this.shadow.innerHTML = JSON.stringify(val)\n                    } catch (e) {\n                        this.shadow.innerHTML = val\n                    }\n                } else {\n                    this.shadow.innerHTML = val\n                }\n                break\n            }\n        }\n\n        this.shadow.appendChild(this.css)\n        // this.$('span').innerHTML = window['uibuilder'].sanitiseHTML(val)\n        // this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(val)\n    }\n}\n\n// Add the class as a new Custom Element to the window object \n// customElements.define('uib-var', UibVar)\n", "const PACKET_TYPES = Object.create(null); // no Map = no polyfill\nPACKET_TYPES[\"open\"] = \"0\";\nPACKET_TYPES[\"close\"] = \"1\";\nPACKET_TYPES[\"ping\"] = \"2\";\nPACKET_TYPES[\"pong\"] = \"3\";\nPACKET_TYPES[\"message\"] = \"4\";\nPACKET_TYPES[\"upgrade\"] = \"5\";\nPACKET_TYPES[\"noop\"] = \"6\";\nconst PACKET_TYPES_REVERSE = Object.create(null);\nObject.keys(PACKET_TYPES).forEach(key => {\n    PACKET_TYPES_REVERSE[PACKET_TYPES[key]] = key;\n});\nconst ERROR_PACKET = { type: \"error\", data: \"parser error\" };\nexport { PACKET_TYPES, PACKET_TYPES_REVERSE, ERROR_PACKET };\n", "import { PACKET_TYPES } from \"./commons.js\";\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        Object.prototype.toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\n// ArrayBuffer.isView method is not defined in IE10\nconst isView = obj => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj && obj.buffer instanceof ArrayBuffer;\n};\nconst encodePacket = ({ type, data }, supportsBinary, callback) => {\n    if (withNativeBlob && data instanceof Blob) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(data, callback);\n        }\n    }\n    else if (withNativeArrayBuffer &&\n        (data instanceof ArrayBuffer || isView(data))) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(new Blob([data]), callback);\n        }\n    }\n    // plain string\n    return callback(PACKET_TYPES[type] + (data || \"\"));\n};\nconst encodeBlobAsBase64 = (data, callback) => {\n    const fileReader = new FileReader();\n    fileReader.onload = function () {\n        const content = fileReader.result.split(\",\")[1];\n        callback(\"b\" + (content || \"\"));\n    };\n    return fileReader.readAsDataURL(data);\n};\nfunction toArray(data) {\n    if (data instanceof Uint8Array) {\n        return data;\n    }\n    else if (data instanceof ArrayBuffer) {\n        return new Uint8Array(data);\n    }\n    else {\n        return new Uint8Array(data.buffer, data.byteOffset, data.byteLength);\n    }\n}\nlet TEXT_ENCODER;\nexport function encodePacketToBinary(packet, callback) {\n    if (withNativeBlob && packet.data instanceof Blob) {\n        return packet.data\n            .arrayBuffer()\n            .then(toArray)\n            .then(callback);\n    }\n    else if (withNativeArrayBuffer &&\n        (packet.data instanceof ArrayBuffer || isView(packet.data))) {\n        return callback(toArray(packet.data));\n    }\n    encodePacket(packet, false, encoded => {\n        if (!TEXT_ENCODER) {\n            TEXT_ENCODER = new TextEncoder();\n        }\n        callback(TEXT_ENCODER.encode(encoded));\n    });\n}\nexport { encodePacket };\n", "// imported from https://github.com/socketio/base64-arraybuffer\nconst chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';\n// Use a lookup table to find the index.\nconst lookup = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);\nfor (let i = 0; i < chars.length; i++) {\n    lookup[chars.charCodeAt(i)] = i;\n}\nexport const encode = (arraybuffer) => {\n    let bytes = new Uint8Array(arraybuffer), i, len = bytes.length, base64 = '';\n    for (i = 0; i < len; i += 3) {\n        base64 += chars[bytes[i] >> 2];\n        base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];\n        base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];\n        base64 += chars[bytes[i + 2] & 63];\n    }\n    if (len % 3 === 2) {\n        base64 = base64.substring(0, base64.length - 1) + '=';\n    }\n    else if (len % 3 === 1) {\n        base64 = base64.substring(0, base64.length - 2) + '==';\n    }\n    return base64;\n};\nexport const decode = (base64) => {\n    let bufferLength = base64.length * 0.75, len = base64.length, i, p = 0, encoded1, encoded2, encoded3, encoded4;\n    if (base64[base64.length - 1] === '=') {\n        bufferLength--;\n        if (base64[base64.length - 2] === '=') {\n            bufferLength--;\n        }\n    }\n    const arraybuffer = new ArrayBuffer(bufferLength), bytes = new Uint8Array(arraybuffer);\n    for (i = 0; i < len; i += 4) {\n        encoded1 = lookup[base64.charCodeAt(i)];\n        encoded2 = lookup[base64.charCodeAt(i + 1)];\n        encoded3 = lookup[base64.charCodeAt(i + 2)];\n        encoded4 = lookup[base64.charCodeAt(i + 3)];\n        bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n        bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n        bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n    }\n    return arraybuffer;\n};\n", "import { ERROR_PACKET, PACKET_TYPES_REVERSE } from \"./commons.js\";\nimport { decode } from \"./contrib/base64-arraybuffer.js\";\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nexport const decodePacket = (encodedPacket, binaryType) => {\n    if (typeof encodedPacket !== \"string\") {\n        return {\n            type: \"message\",\n            data: mapBinary(encodedPacket, binaryType)\n        };\n    }\n    const type = encodedPacket.charAt(0);\n    if (type === \"b\") {\n        return {\n            type: \"message\",\n            data: decodeBase64Packet(encodedPacket.substring(1), binaryType)\n        };\n    }\n    const packetType = PACKET_TYPES_REVERSE[type];\n    if (!packetType) {\n        return ERROR_PACKET;\n    }\n    return encodedPacket.length > 1\n        ? {\n            type: PACKET_TYPES_REVERSE[type],\n            data: encodedPacket.substring(1)\n        }\n        : {\n            type: PACKET_TYPES_REVERSE[type]\n        };\n};\nconst decodeBase64Packet = (data, binaryType) => {\n    if (withNativeArrayBuffer) {\n        const decoded = decode(data);\n        return mapBinary(decoded, binaryType);\n    }\n    else {\n        return { base64: true, data }; // fallback for old browsers\n    }\n};\nconst mapBinary = (data, binaryType) => {\n    switch (binaryType) {\n        case \"blob\":\n            if (data instanceof Blob) {\n                // from WebSocket + binaryType \"blob\"\n                return data;\n            }\n            else {\n                // from HTTP long-polling or WebTransport\n                return new Blob([data]);\n            }\n        case \"arraybuffer\":\n        default:\n            if (data instanceof ArrayBuffer) {\n                // from HTTP long-polling (base64) or WebSocket + binaryType \"arraybuffer\"\n                return data;\n            }\n            else {\n                // from WebTransport (Uint8Array)\n                return data.buffer;\n            }\n    }\n};\n", "import { encodePacket, encodePacketToBinary } from \"./encodePacket.js\";\nimport { decodePacket } from \"./decodePacket.js\";\nimport { ERROR_PACKET } from \"./commons.js\";\nconst SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text\nconst encodePayload = (packets, callback) => {\n    // some packets may be added to the array while encoding, so the initial length must be saved\n    const length = packets.length;\n    const encodedPackets = new Array(length);\n    let count = 0;\n    packets.forEach((packet, i) => {\n        // force base64 encoding for binary packets\n        encodePacket(packet, false, encodedPacket => {\n            encodedPackets[i] = encodedPacket;\n            if (++count === length) {\n                callback(encodedPackets.join(SEPARATOR));\n            }\n        });\n    });\n};\nconst decodePayload = (encodedPayload, binaryType) => {\n    const encodedPackets = encodedPayload.split(SEPARATOR);\n    const packets = [];\n    for (let i = 0; i < encodedPackets.length; i++) {\n        const decodedPacket = decodePacket(encodedPackets[i], binaryType);\n        packets.push(decodedPacket);\n        if (decodedPacket.type === \"error\") {\n            break;\n        }\n    }\n    return packets;\n};\nexport function createPacketEncoderStream() {\n    return new TransformStream({\n        transform(packet, controller) {\n            encodePacketToBinary(packet, encodedPacket => {\n                const payloadLength = encodedPacket.length;\n                let header;\n                // inspired by the WebSocket format: https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API/Writing_WebSocket_servers#decoding_payload_length\n                if (payloadLength < 126) {\n                    header = new Uint8Array(1);\n                    new DataView(header.buffer).setUint8(0, payloadLength);\n                }\n                else if (payloadLength < 65536) {\n                    header = new Uint8Array(3);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 126);\n                    view.setUint16(1, payloadLength);\n                }\n                else {\n                    header = new Uint8Array(9);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 127);\n                    view.setBigUint64(1, BigInt(payloadLength));\n                }\n                // first bit indicates whether the payload is plain text (0) or binary (1)\n                if (packet.data && typeof packet.data !== \"string\") {\n                    header[0] |= 0x80;\n                }\n                controller.enqueue(header);\n                controller.enqueue(encodedPacket);\n            });\n        }\n    });\n}\nlet TEXT_DECODER;\nfunction totalLength(chunks) {\n    return chunks.reduce((acc, chunk) => acc + chunk.length, 0);\n}\nfunction concatChunks(chunks, size) {\n    if (chunks[0].length === size) {\n        return chunks.shift();\n    }\n    const buffer = new Uint8Array(size);\n    let j = 0;\n    for (let i = 0; i < size; i++) {\n        buffer[i] = chunks[0][j++];\n        if (j === chunks[0].length) {\n            chunks.shift();\n            j = 0;\n        }\n    }\n    if (chunks.length && j < chunks[0].length) {\n        chunks[0] = chunks[0].slice(j);\n    }\n    return buffer;\n}\nexport function createPacketDecoderStream(maxPayload, binaryType) {\n    if (!TEXT_DECODER) {\n        TEXT_DECODER = new TextDecoder();\n    }\n    const chunks = [];\n    let state = 0 /* READ_HEADER */;\n    let expectedLength = -1;\n    let isBinary = false;\n    return new TransformStream({\n        transform(chunk, controller) {\n            chunks.push(chunk);\n            while (true) {\n                if (state === 0 /* READ_HEADER */) {\n                    if (totalLength(chunks) < 1) {\n                        break;\n                    }\n                    const header = concatChunks(chunks, 1);\n                    isBinary = (header[0] & 0x80) === 0x80;\n                    expectedLength = header[0] & 0x7f;\n                    if (expectedLength < 126) {\n                        state = 3 /* READ_PAYLOAD */;\n                    }\n                    else if (expectedLength === 126) {\n                        state = 1 /* READ_EXTENDED_LENGTH_16 */;\n                    }\n                    else {\n                        state = 2 /* READ_EXTENDED_LENGTH_64 */;\n                    }\n                }\n                else if (state === 1 /* READ_EXTENDED_LENGTH_16 */) {\n                    if (totalLength(chunks) < 2) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 2);\n                    expectedLength = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length).getUint16(0);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else if (state === 2 /* READ_EXTENDED_LENGTH_64 */) {\n                    if (totalLength(chunks) < 8) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 8);\n                    const view = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length);\n                    const n = view.getUint32(0);\n                    if (n > Math.pow(2, 53 - 32) - 1) {\n                        // the maximum safe integer in JavaScript is 2^53 - 1\n                        controller.enqueue(ERROR_PACKET);\n                        break;\n                    }\n                    expectedLength = n * Math.pow(2, 32) + view.getUint32(4);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else {\n                    if (totalLength(chunks) < expectedLength) {\n                        break;\n                    }\n                    const data = concatChunks(chunks, expectedLength);\n                    controller.enqueue(decodePacket(isBinary ? data : TEXT_DECODER.decode(data), binaryType));\n                    state = 0 /* READ_HEADER */;\n                }\n                if (expectedLength === 0 || expectedLength > maxPayload) {\n                    controller.enqueue(ERROR_PACKET);\n                    break;\n                }\n            }\n        }\n    });\n}\nexport const protocol = 4;\nexport { encodePacket, encodePayload, decodePacket, decodePayload };\n", "/**\n * Initialize a new `Emitter`.\n *\n * @api public\n */\n\nexport function Emitter(obj) {\n  if (obj) return mixin(obj);\n}\n\n/**\n * Mixin the emitter properties.\n *\n * @param {Object} obj\n * @return {Object}\n * @api private\n */\n\nfunction mixin(obj) {\n  for (var key in Emitter.prototype) {\n    obj[key] = Emitter.prototype[key];\n  }\n  return obj;\n}\n\n/**\n * Listen on the given `event` with `fn`.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.on =\nEmitter.prototype.addEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])\n    .push(fn);\n  return this;\n};\n\n/**\n * Adds an `event` listener that will be invoked a single\n * time then automatically removed.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.once = function(event, fn){\n  function on() {\n    this.off(event, on);\n    fn.apply(this, arguments);\n  }\n\n  on.fn = fn;\n  this.on(event, on);\n  return this;\n};\n\n/**\n * Remove the given callback for `event` or all\n * registered callbacks.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.off =\nEmitter.prototype.removeListener =\nEmitter.prototype.removeAllListeners =\nEmitter.prototype.removeEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n\n  // all\n  if (0 == arguments.length) {\n    this._callbacks = {};\n    return this;\n  }\n\n  // specific event\n  var callbacks = this._callbacks['$' + event];\n  if (!callbacks) return this;\n\n  // remove all handlers\n  if (1 == arguments.length) {\n    delete this._callbacks['$' + event];\n    return this;\n  }\n\n  // remove specific handler\n  var cb;\n  for (var i = 0; i < callbacks.length; i++) {\n    cb = callbacks[i];\n    if (cb === fn || cb.fn === fn) {\n      callbacks.splice(i, 1);\n      break;\n    }\n  }\n\n  // Remove event specific arrays for event types that no\n  // one is subscribed for to avoid memory leak.\n  if (callbacks.length === 0) {\n    delete this._callbacks['$' + event];\n  }\n\n  return this;\n};\n\n/**\n * Emit `event` with the given args.\n *\n * @param {String} event\n * @param {Mixed} ...\n * @return {Emitter}\n */\n\nEmitter.prototype.emit = function(event){\n  this._callbacks = this._callbacks || {};\n\n  var args = new Array(arguments.length - 1)\n    , callbacks = this._callbacks['$' + event];\n\n  for (var i = 1; i < arguments.length; i++) {\n    args[i - 1] = arguments[i];\n  }\n\n  if (callbacks) {\n    callbacks = callbacks.slice(0);\n    for (var i = 0, len = callbacks.length; i < len; ++i) {\n      callbacks[i].apply(this, args);\n    }\n  }\n\n  return this;\n};\n\n// alias used for reserved events (protected method)\nEmitter.prototype.emitReserved = Emitter.prototype.emit;\n\n/**\n * Return array of callbacks for `event`.\n *\n * @param {String} event\n * @return {Array}\n * @api public\n */\n\nEmitter.prototype.listeners = function(event){\n  this._callbacks = this._callbacks || {};\n  return this._callbacks['$' + event] || [];\n};\n\n/**\n * Check if this emitter has `event` handlers.\n *\n * @param {String} event\n * @return {Boolean}\n * @api public\n */\n\nEmitter.prototype.hasListeners = function(event){\n  return !! this.listeners(event).length;\n};\n", "export const globalThisShim = (() => {\n    if (typeof self !== \"undefined\") {\n        return self;\n    }\n    else if (typeof window !== \"undefined\") {\n        return window;\n    }\n    else {\n        return Function(\"return this\")();\n    }\n})();\n", "import { globalThisShim as globalThis } from \"./globalThis.js\";\nexport function pick(obj, ...attr) {\n    return attr.reduce((acc, k) => {\n        if (obj.hasOwnProperty(k)) {\n            acc[k] = obj[k];\n        }\n        return acc;\n    }, {});\n}\n// Keep a reference to the real timeout functions so they can be used when overridden\nconst NATIVE_SET_TIMEOUT = globalThis.setTimeout;\nconst NATIVE_CLEAR_TIMEOUT = globalThis.clearTimeout;\nexport function installTimerFunctions(obj, opts) {\n    if (opts.useNativeTimers) {\n        obj.setTimeoutFn = NATIVE_SET_TIMEOUT.bind(globalThis);\n        obj.clearTimeoutFn = NATIVE_CLEAR_TIMEOUT.bind(globalThis);\n    }\n    else {\n        obj.setTimeoutFn = globalThis.setTimeout.bind(globalThis);\n        obj.clearTimeoutFn = globalThis.clearTimeout.bind(globalThis);\n    }\n}\n// base64 encoded buffers are about 33% bigger (https://en.wikipedia.org/wiki/Base64)\nconst BASE64_OVERHEAD = 1.33;\n// we could also have used `new Blob([obj]).size`, but it isn't supported in IE9\nexport function byteLength(obj) {\n    if (typeof obj === \"string\") {\n        return utf8Length(obj);\n    }\n    // arraybuffer or blob\n    return Math.ceil((obj.byteLength || obj.size) * BASE64_OVERHEAD);\n}\nfunction utf8Length(str) {\n    let c = 0, length = 0;\n    for (let i = 0, l = str.length; i < l; i++) {\n        c = str.charCodeAt(i);\n        if (c < 0x80) {\n            length += 1;\n        }\n        else if (c < 0x800) {\n            length += 2;\n        }\n        else if (c < 0xd800 || c >= 0xe000) {\n            length += 3;\n        }\n        else {\n            i++;\n            length += 4;\n        }\n    }\n    return length;\n}\n", "// imported from https://github.com/galkn/querystring\n/**\n * Compiles a querystring\n * Returns string representation of the object\n *\n * @param {Object}\n * @api private\n */\nexport function encode(obj) {\n    let str = '';\n    for (let i in obj) {\n        if (obj.hasOwnProperty(i)) {\n            if (str.length)\n                str += '&';\n            str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);\n        }\n    }\n    return str;\n}\n/**\n * Parses a simple querystring into an object\n *\n * @param {String} qs\n * @api private\n */\nexport function decode(qs) {\n    let qry = {};\n    let pairs = qs.split('&');\n    for (let i = 0, l = pairs.length; i < l; i++) {\n        let pair = pairs[i].split('=');\n        qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);\n    }\n    return qry;\n}\n", "import { decodePacket } from \"engine.io-parser\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions } from \"./util.js\";\nimport { encode } from \"./contrib/parseqs.js\";\nexport class TransportError extends Error {\n    constructor(reason, description, context) {\n        super(reason);\n        this.description = description;\n        this.context = context;\n        this.type = \"TransportError\";\n    }\n}\nexport class Transport extends Emitter {\n    /**\n     * Transport abstract constructor.\n     *\n     * @param {Object} opts - options\n     * @protected\n     */\n    constructor(opts) {\n        super();\n        this.writable = false;\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.query = opts.query;\n        this.socket = opts.socket;\n    }\n    /**\n     * Emits an error.\n     *\n     * @param {String} reason\n     * @param description\n     * @param context - the error context\n     * @return {Transport} for chaining\n     * @protected\n     */\n    onError(reason, description, context) {\n        super.emitReserved(\"error\", new TransportError(reason, description, context));\n        return this;\n    }\n    /**\n     * Opens the transport.\n     */\n    open() {\n        this.readyState = \"opening\";\n        this.doOpen();\n        return this;\n    }\n    /**\n     * Closes the transport.\n     */\n    close() {\n        if (this.readyState === \"opening\" || this.readyState === \"open\") {\n            this.doClose();\n            this.onClose();\n        }\n        return this;\n    }\n    /**\n     * Sends multiple packets.\n     *\n     * @param {Array} packets\n     */\n    send(packets) {\n        if (this.readyState === \"open\") {\n            this.write(packets);\n        }\n        else {\n            // this might happen if the transport was silently closed in the beforeunload event handler\n        }\n    }\n    /**\n     * Called upon open\n     *\n     * @protected\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        this.writable = true;\n        super.emitReserved(\"open\");\n    }\n    /**\n     * Called with data.\n     *\n     * @param {String} data\n     * @protected\n     */\n    onData(data) {\n        const packet = decodePacket(data, this.socket.binaryType);\n        this.onPacket(packet);\n    }\n    /**\n     * Called with a decoded packet.\n     *\n     * @protected\n     */\n    onPacket(packet) {\n        super.emitReserved(\"packet\", packet);\n    }\n    /**\n     * Called upon close.\n     *\n     * @protected\n     */\n    onClose(details) {\n        this.readyState = \"closed\";\n        super.emitReserved(\"close\", details);\n    }\n    /**\n     * Pauses the transport, in order not to lose packets during an upgrade.\n     *\n     * @param onPause\n     */\n    pause(onPause) { }\n    createUri(schema, query = {}) {\n        return (schema +\n            \"://\" +\n            this._hostname() +\n            this._port() +\n            this.opts.path +\n            this._query(query));\n    }\n    _hostname() {\n        const hostname = this.opts.hostname;\n        return hostname.indexOf(\":\") === -1 ? hostname : \"[\" + hostname + \"]\";\n    }\n    _port() {\n        if (this.opts.port &&\n            ((this.opts.secure && Number(this.opts.port !== 443)) ||\n                (!this.opts.secure && Number(this.opts.port) !== 80))) {\n            return \":\" + this.opts.port;\n        }\n        else {\n            return \"\";\n        }\n    }\n    _query(query) {\n        const encodedQuery = encode(query);\n        return encodedQuery.length ? \"?\" + encodedQuery : \"\";\n    }\n}\n", "// imported from https://github.com/unshiftio/yeast\n'use strict';\nconst alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split(''), length = 64, map = {};\nlet seed = 0, i = 0, prev;\n/**\n * Return a string representing the specified number.\n *\n * @param {Number} num The number to convert.\n * @returns {String} The string representation of the number.\n * @api public\n */\nexport function encode(num) {\n    let encoded = '';\n    do {\n        encoded = alphabet[num % length] + encoded;\n        num = Math.floor(num / length);\n    } while (num > 0);\n    return encoded;\n}\n/**\n * Return the integer value specified by the given string.\n *\n * @param {String} str The string to convert.\n * @returns {Number} The integer value represented by the string.\n * @api public\n */\nexport function decode(str) {\n    let decoded = 0;\n    for (i = 0; i < str.length; i++) {\n        decoded = decoded * length + map[str.charAt(i)];\n    }\n    return decoded;\n}\n/**\n * Yeast: A tiny growing id generator.\n *\n * @returns {String} A unique id.\n * @api public\n */\nexport function yeast() {\n    const now = encode(+new Date());\n    if (now !== prev)\n        return seed = 0, prev = now;\n    return now + '.' + encode(seed++);\n}\n//\n// Map each character to its index.\n//\nfor (; i < length; i++)\n    map[alphabet[i]] = i;\n", "// imported from https://github.com/component/has-cors\nlet value = false;\ntry {\n    value = typeof XMLHttpRequest !== 'undefined' &&\n        'withCredentials' in new XMLHttpRequest();\n}\ncatch (err) {\n    // if XMLHttp support is disabled in IE then it will throw\n    // when trying to create\n}\nexport const hasCORS = value;\n", "// browser shim for xmlhttprequest module\nimport { hasCORS } from \"../contrib/has-cors.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nexport function XHR(opts) {\n    const xdomain = opts.xdomain;\n    // XMLHttpRequest can be disabled on IE\n    try {\n        if (\"undefined\" !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {\n            return new XMLHttpRequest();\n        }\n    }\n    catch (e) { }\n    if (!xdomain) {\n        try {\n            return new globalThis[[\"Active\"].concat(\"Object\").join(\"X\")](\"Microsoft.XMLHTTP\");\n        }\n        catch (e) { }\n    }\n}\nexport function createCookieJar() { }\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { encodePayload, decodePayload } from \"engine.io-parser\";\nimport { createCookieJar, XHR as XMLHttpRequest, } from \"./xmlhttprequest.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions, pick } from \"../util.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nfunction empty() { }\nconst hasXHR2 = (function () {\n    const xhr = new XMLHttpRequest({\n        xdomain: false,\n    });\n    return null != xhr.responseType;\n})();\nexport class Polling extends Transport {\n    /**\n     * XHR Polling constructor.\n     *\n     * @param {Object} opts\n     * @package\n     */\n    constructor(opts) {\n        super(opts);\n        this.polling = false;\n        if (typeof location !== \"undefined\") {\n            const isSSL = \"https:\" === location.protocol;\n            let port = location.port;\n            // some user agents have empty `location.port`\n            if (!port) {\n                port = isSSL ? \"443\" : \"80\";\n            }\n            this.xd =\n                (typeof location !== \"undefined\" &&\n                    opts.hostname !== location.hostname) ||\n                    port !== opts.port;\n        }\n        /**\n         * XHR supports binary\n         */\n        const forceBase64 = opts && opts.forceBase64;\n        this.supportsBinary = hasXHR2 && !forceBase64;\n        if (this.opts.withCredentials) {\n            this.cookieJar = createCookieJar();\n        }\n    }\n    get name() {\n        return \"polling\";\n    }\n    /**\n     * Opens the socket (triggers polling). We write a PING message to determine\n     * when the transport is open.\n     *\n     * @protected\n     */\n    doOpen() {\n        this.poll();\n    }\n    /**\n     * Pauses polling.\n     *\n     * @param {Function} onPause - callback upon buffers are flushed and transport is paused\n     * @package\n     */\n    pause(onPause) {\n        this.readyState = \"pausing\";\n        const pause = () => {\n            this.readyState = \"paused\";\n            onPause();\n        };\n        if (this.polling || !this.writable) {\n            let total = 0;\n            if (this.polling) {\n                total++;\n                this.once(\"pollComplete\", function () {\n                    --total || pause();\n                });\n            }\n            if (!this.writable) {\n                total++;\n                this.once(\"drain\", function () {\n                    --total || pause();\n                });\n            }\n        }\n        else {\n            pause();\n        }\n    }\n    /**\n     * Starts polling cycle.\n     *\n     * @private\n     */\n    poll() {\n        this.polling = true;\n        this.doPoll();\n        this.emitReserved(\"poll\");\n    }\n    /**\n     * Overloads onData to detect payloads.\n     *\n     * @protected\n     */\n    onData(data) {\n        const callback = (packet) => {\n            // if its the first message we consider the transport open\n            if (\"opening\" === this.readyState && packet.type === \"open\") {\n                this.onOpen();\n            }\n            // if its a close packet, we close the ongoing requests\n            if (\"close\" === packet.type) {\n                this.onClose({ description: \"transport closed by the server\" });\n                return false;\n            }\n            // otherwise bypass onData and handle the message\n            this.onPacket(packet);\n        };\n        // decode payload\n        decodePayload(data, this.socket.binaryType).forEach(callback);\n        // if an event did not trigger closing\n        if (\"closed\" !== this.readyState) {\n            // if we got data we're not polling\n            this.polling = false;\n            this.emitReserved(\"pollComplete\");\n            if (\"open\" === this.readyState) {\n                this.poll();\n            }\n            else {\n            }\n        }\n    }\n    /**\n     * For polling, send a close packet.\n     *\n     * @protected\n     */\n    doClose() {\n        const close = () => {\n            this.write([{ type: \"close\" }]);\n        };\n        if (\"open\" === this.readyState) {\n            close();\n        }\n        else {\n            // in case we're trying to close while\n            // handshaking is in progress (GH-164)\n            this.once(\"open\", close);\n        }\n    }\n    /**\n     * Writes a packets payload.\n     *\n     * @param {Array} packets - data packets\n     * @protected\n     */\n    write(packets) {\n        this.writable = false;\n        encodePayload(packets, (data) => {\n            this.doWrite(data, () => {\n                this.writable = true;\n                this.emitReserved(\"drain\");\n            });\n        });\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"https\" : \"http\";\n        const query = this.query || {};\n        // cache busting is forced\n        if (false !== this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        if (!this.supportsBinary && !query.sid) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Creates a request.\n     *\n     * @param {String} method\n     * @private\n     */\n    request(opts = {}) {\n        Object.assign(opts, { xd: this.xd, cookieJar: this.cookieJar }, this.opts);\n        return new Request(this.uri(), opts);\n    }\n    /**\n     * Sends data.\n     *\n     * @param {String} data to send.\n     * @param {Function} called upon flush.\n     * @private\n     */\n    doWrite(data, fn) {\n        const req = this.request({\n            method: \"POST\",\n            data: data,\n        });\n        req.on(\"success\", fn);\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr post error\", xhrStatus, context);\n        });\n    }\n    /**\n     * Starts a poll cycle.\n     *\n     * @private\n     */\n    doPoll() {\n        const req = this.request();\n        req.on(\"data\", this.onData.bind(this));\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr poll error\", xhrStatus, context);\n        });\n        this.pollXhr = req;\n    }\n}\nexport class Request extends Emitter {\n    /**\n     * Request constructor\n     *\n     * @param {Object} options\n     * @package\n     */\n    constructor(uri, opts) {\n        super();\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.method = opts.method || \"GET\";\n        this.uri = uri;\n        this.data = undefined !== opts.data ? opts.data : null;\n        this.create();\n    }\n    /**\n     * Creates the XHR object and sends the request.\n     *\n     * @private\n     */\n    create() {\n        var _a;\n        const opts = pick(this.opts, \"agent\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"autoUnref\");\n        opts.xdomain = !!this.opts.xd;\n        const xhr = (this.xhr = new XMLHttpRequest(opts));\n        try {\n            xhr.open(this.method, this.uri, true);\n            try {\n                if (this.opts.extraHeaders) {\n                    xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);\n                    for (let i in this.opts.extraHeaders) {\n                        if (this.opts.extraHeaders.hasOwnProperty(i)) {\n                            xhr.setRequestHeader(i, this.opts.extraHeaders[i]);\n                        }\n                    }\n                }\n            }\n            catch (e) { }\n            if (\"POST\" === this.method) {\n                try {\n                    xhr.setRequestHeader(\"Content-type\", \"text/plain;charset=UTF-8\");\n                }\n                catch (e) { }\n            }\n            try {\n                xhr.setRequestHeader(\"Accept\", \"*/*\");\n            }\n            catch (e) { }\n            (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.addCookies(xhr);\n            // ie6 check\n            if (\"withCredentials\" in xhr) {\n                xhr.withCredentials = this.opts.withCredentials;\n            }\n            if (this.opts.requestTimeout) {\n                xhr.timeout = this.opts.requestTimeout;\n            }\n            xhr.onreadystatechange = () => {\n                var _a;\n                if (xhr.readyState === 3) {\n                    (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.parseCookies(xhr);\n                }\n                if (4 !== xhr.readyState)\n                    return;\n                if (200 === xhr.status || 1223 === xhr.status) {\n                    this.onLoad();\n                }\n                else {\n                    // make sure the `error` event handler that's user-set\n                    // does not throw in the same tick and gets caught here\n                    this.setTimeoutFn(() => {\n                        this.onError(typeof xhr.status === \"number\" ? xhr.status : 0);\n                    }, 0);\n                }\n            };\n            xhr.send(this.data);\n        }\n        catch (e) {\n            // Need to defer since .create() is called directly from the constructor\n            // and thus the 'error' event can only be only bound *after* this exception\n            // occurs.  Therefore, also, we cannot throw here at all.\n            this.setTimeoutFn(() => {\n                this.onError(e);\n            }, 0);\n            return;\n        }\n        if (typeof document !== \"undefined\") {\n            this.index = Request.requestsCount++;\n            Request.requests[this.index] = this;\n        }\n    }\n    /**\n     * Called upon error.\n     *\n     * @private\n     */\n    onError(err) {\n        this.emitReserved(\"error\", err, this.xhr);\n        this.cleanup(true);\n    }\n    /**\n     * Cleans up house.\n     *\n     * @private\n     */\n    cleanup(fromError) {\n        if (\"undefined\" === typeof this.xhr || null === this.xhr) {\n            return;\n        }\n        this.xhr.onreadystatechange = empty;\n        if (fromError) {\n            try {\n                this.xhr.abort();\n            }\n            catch (e) { }\n        }\n        if (typeof document !== \"undefined\") {\n            delete Request.requests[this.index];\n        }\n        this.xhr = null;\n    }\n    /**\n     * Called upon load.\n     *\n     * @private\n     */\n    onLoad() {\n        const data = this.xhr.responseText;\n        if (data !== null) {\n            this.emitReserved(\"data\", data);\n            this.emitReserved(\"success\");\n            this.cleanup();\n        }\n    }\n    /**\n     * Aborts the request.\n     *\n     * @package\n     */\n    abort() {\n        this.cleanup();\n    }\n}\nRequest.requestsCount = 0;\nRequest.requests = {};\n/**\n * Aborts pending requests when unloading the window. This is needed to prevent\n * memory leaks (e.g. when using IE) and to ensure that no spurious error is\n * emitted.\n */\nif (typeof document !== \"undefined\") {\n    // @ts-ignore\n    if (typeof attachEvent === \"function\") {\n        // @ts-ignore\n        attachEvent(\"onunload\", unloadHandler);\n    }\n    else if (typeof addEventListener === \"function\") {\n        const terminationEvent = \"onpagehide\" in globalThis ? \"pagehide\" : \"unload\";\n        addEventListener(terminationEvent, unloadHandler, false);\n    }\n}\nfunction unloadHandler() {\n    for (let i in Request.requests) {\n        if (Request.requests.hasOwnProperty(i)) {\n            Request.requests[i].abort();\n        }\n    }\n}\n", "import { globalThisShim as globalThis } from \"../globalThis.js\";\nexport const nextTick = (() => {\n    const isPromiseAvailable = typeof Promise === \"function\" && typeof Promise.resolve === \"function\";\n    if (isPromiseAvailable) {\n        return (cb) => Promise.resolve().then(cb);\n    }\n    else {\n        return (cb, setTimeoutFn) => setTimeoutFn(cb, 0);\n    }\n})();\nexport const WebSocket = globalThis.WebSocket || globalThis.MozWebSocket;\nexport const usingBrowserWebSocket = true;\nexport const defaultBinaryType = \"arraybuffer\";\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { pick } from \"../util.js\";\nimport { nextTick, usingBrowserWebSocket, WebSocket, } from \"./websocket-constructor.js\";\nimport { encodePacket } from \"engine.io-parser\";\n// detect ReactNative environment\nconst isReactNative = typeof navigator !== \"undefined\" &&\n    typeof navigator.product === \"string\" &&\n    navigator.product.toLowerCase() === \"reactnative\";\nexport class WS extends Transport {\n    /**\n     * WebSocket transport constructor.\n     *\n     * @param {Object} opts - connection options\n     * @protected\n     */\n    constructor(opts) {\n        super(opts);\n        this.supportsBinary = !opts.forceBase64;\n    }\n    get name() {\n        return \"websocket\";\n    }\n    doOpen() {\n        if (!this.check()) {\n            // let probe timeout\n            return;\n        }\n        const uri = this.uri();\n        const protocols = this.opts.protocols;\n        // React Native only supports the 'headers' option, and will print a warning if anything else is passed\n        const opts = isReactNative\n            ? {}\n            : pick(this.opts, \"agent\", \"perMessageDeflate\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"localAddress\", \"protocolVersion\", \"origin\", \"maxPayload\", \"family\", \"checkServerIdentity\");\n        if (this.opts.extraHeaders) {\n            opts.headers = this.opts.extraHeaders;\n        }\n        try {\n            this.ws =\n                usingBrowserWebSocket && !isReactNative\n                    ? protocols\n                        ? new WebSocket(uri, protocols)\n                        : new WebSocket(uri)\n                    : new WebSocket(uri, protocols, opts);\n        }\n        catch (err) {\n            return this.emitReserved(\"error\", err);\n        }\n        this.ws.binaryType = this.socket.binaryType;\n        this.addEventListeners();\n    }\n    /**\n     * Adds event listeners to the socket\n     *\n     * @private\n     */\n    addEventListeners() {\n        this.ws.onopen = () => {\n            if (this.opts.autoUnref) {\n                this.ws._socket.unref();\n            }\n            this.onOpen();\n        };\n        this.ws.onclose = (closeEvent) => this.onClose({\n            description: \"websocket connection closed\",\n            context: closeEvent,\n        });\n        this.ws.onmessage = (ev) => this.onData(ev.data);\n        this.ws.onerror = (e) => this.onError(\"websocket error\", e);\n    }\n    write(packets) {\n        this.writable = false;\n        // encodePacket efficient as it uses WS framing\n        // no need for encodePayload\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            encodePacket(packet, this.supportsBinary, (data) => {\n                // always create a new object (GH-437)\n                const opts = {};\n                if (!usingBrowserWebSocket) {\n                    if (packet.options) {\n                        opts.compress = packet.options.compress;\n                    }\n                    if (this.opts.perMessageDeflate) {\n                        const len = \n                        // @ts-ignore\n                        \"string\" === typeof data ? Buffer.byteLength(data) : data.length;\n                        if (len < this.opts.perMessageDeflate.threshold) {\n                            opts.compress = false;\n                        }\n                    }\n                }\n                // Sometimes the websocket has already been closed but the browser didn't\n                // have a chance of informing us about it yet, in that case send will\n                // throw an error\n                try {\n                    if (usingBrowserWebSocket) {\n                        // TypeError is thrown when passing the second argument on Safari\n                        this.ws.send(data);\n                    }\n                    else {\n                        this.ws.send(data, opts);\n                    }\n                }\n                catch (e) {\n                }\n                if (lastPacket) {\n                    // fake drain\n                    // defer to next tick to allow Socket to clear writeBuffer\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        if (typeof this.ws !== \"undefined\") {\n            this.ws.close();\n            this.ws = null;\n        }\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"wss\" : \"ws\";\n        const query = this.query || {};\n        // append timestamp to URI\n        if (this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        // communicate binary support capabilities\n        if (!this.supportsBinary) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Feature detection for WebSocket.\n     *\n     * @return {Boolean} whether this transport is available.\n     * @private\n     */\n    check() {\n        return !!WebSocket;\n    }\n}\n", "import { Transport } from \"../transport.js\";\nimport { nextTick } from \"./websocket-constructor.js\";\nimport { createPacketDecoderStream, createPacketEncoderStream, } from \"engine.io-parser\";\nexport class WT extends Transport {\n    get name() {\n        return \"webtransport\";\n    }\n    doOpen() {\n        // @ts-ignore\n        if (typeof WebTransport !== \"function\") {\n            return;\n        }\n        // @ts-ignore\n        this.transport = new WebTransport(this.createUri(\"https\"), this.opts.transportOptions[this.name]);\n        this.transport.closed\n            .then(() => {\n            this.onClose();\n        })\n            .catch((err) => {\n            this.onError(\"webtransport error\", err);\n        });\n        // note: we could have used async/await, but that would require some additional polyfills\n        this.transport.ready.then(() => {\n            this.transport.createBidirectionalStream().then((stream) => {\n                const decoderStream = createPacketDecoderStream(Number.MAX_SAFE_INTEGER, this.socket.binaryType);\n                const reader = stream.readable.pipeThrough(decoderStream).getReader();\n                const encoderStream = createPacketEncoderStream();\n                encoderStream.readable.pipeTo(stream.writable);\n                this.writer = encoderStream.writable.getWriter();\n                const read = () => {\n                    reader\n                        .read()\n                        .then(({ done, value }) => {\n                        if (done) {\n                            return;\n                        }\n                        this.onPacket(value);\n                        read();\n                    })\n                        .catch((err) => {\n                    });\n                };\n                read();\n                const packet = { type: \"open\" };\n                if (this.query.sid) {\n                    packet.data = `{\"sid\":\"${this.query.sid}\"}`;\n                }\n                this.writer.write(packet).then(() => this.onOpen());\n            });\n        });\n    }\n    write(packets) {\n        this.writable = false;\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            this.writer.write(packet).then(() => {\n                if (lastPacket) {\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        var _a;\n        (_a = this.transport) === null || _a === void 0 ? void 0 : _a.close();\n    }\n}\n", "import { Polling } from \"./polling.js\";\nimport { WS } from \"./websocket.js\";\nimport { WT } from \"./webtransport.js\";\nexport const transports = {\n    websocket: WS,\n    webtransport: WT,\n    polling: Polling,\n};\n", "// imported from https://github.com/galkn/parseuri\n/**\n * Parses a URI\n *\n * Note: we could also have used the built-in URL object, but it isn't supported on all platforms.\n *\n * See:\n * - https://developer.mozilla.org/en-US/docs/Web/API/URL\n * - https://caniuse.com/url\n * - https://www.rfc-editor.org/rfc/rfc3986#appendix-B\n *\n * History of the parse() method:\n * - first commit: https://github.com/socketio/socket.io-client/commit/4ee1d5d94b3906a9c052b459f1a818b15f38f91c\n * - export into its own module: https://github.com/socketio/engine.io-client/commit/de2c561e4564efeb78f1bdb1ba39ef81b2822cb3\n * - reimport: https://github.com/socketio/engine.io-client/commit/df32277c3f6d622eec5ed09f493cae3f3391d242\n *\n * @author Steven Levithan <stevenlevithan.com> (MIT license)\n * @api private\n */\nconst re = /^(?:(?![^:@\\/?#]+:[^:@\\/]*@)(http|https|ws|wss):\\/\\/)?((?:(([^:@\\/?#]*)(?::([^:@\\/?#]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\\/?#]*)(?::(\\d*))?)(((\\/(?:[^?#](?![^?#\\/]*\\.[^?#\\/.]+(?:[?#]|$)))*\\/?)?([^?#\\/]*))(?:\\?([^#]*))?(?:#(.*))?)/;\nconst parts = [\n    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'\n];\nexport function parse(str) {\n    if (str.length > 2000) {\n        throw \"URI too long\";\n    }\n    const src = str, b = str.indexOf('['), e = str.indexOf(']');\n    if (b != -1 && e != -1) {\n        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);\n    }\n    let m = re.exec(str || ''), uri = {}, i = 14;\n    while (i--) {\n        uri[parts[i]] = m[i] || '';\n    }\n    if (b != -1 && e != -1) {\n        uri.source = src;\n        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');\n        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');\n        uri.ipv6uri = true;\n    }\n    uri.pathNames = pathNames(uri, uri['path']);\n    uri.queryKey = queryKey(uri, uri['query']);\n    return uri;\n}\nfunction pathNames(obj, path) {\n    const regx = /\\/{2,9}/g, names = path.replace(regx, \"/\").split(\"/\");\n    if (path.slice(0, 1) == '/' || path.length === 0) {\n        names.splice(0, 1);\n    }\n    if (path.slice(-1) == '/') {\n        names.splice(names.length - 1, 1);\n    }\n    return names;\n}\nfunction queryKey(uri, query) {\n    const data = {};\n    query.replace(/(?:^|&)([^&=]*)=?([^&]*)/g, function ($0, $1, $2) {\n        if ($1) {\n            data[$1] = $2;\n        }\n    });\n    return data;\n}\n", "import { transports } from \"./transports/index.js\";\nimport { installTimerFunctions, byteLength } from \"./util.js\";\nimport { decode } from \"./contrib/parseqs.js\";\nimport { parse } from \"./contrib/parseuri.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { protocol } from \"engine.io-parser\";\nimport { defaultBinaryType } from \"./transports/websocket-constructor.js\";\nexport class Socket extends Emitter {\n    /**\n     * Socket constructor.\n     *\n     * @param {String|Object} uri - uri or options\n     * @param {Object} opts - options\n     */\n    constructor(uri, opts = {}) {\n        super();\n        this.binaryType = defaultBinaryType;\n        this.writeBuffer = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = null;\n        }\n        if (uri) {\n            uri = parse(uri);\n            opts.hostname = uri.host;\n            opts.secure = uri.protocol === \"https\" || uri.protocol === \"wss\";\n            opts.port = uri.port;\n            if (uri.query)\n                opts.query = uri.query;\n        }\n        else if (opts.host) {\n            opts.hostname = parse(opts.host).host;\n        }\n        installTimerFunctions(this, opts);\n        this.secure =\n            null != opts.secure\n                ? opts.secure\n                : typeof location !== \"undefined\" && \"https:\" === location.protocol;\n        if (opts.hostname && !opts.port) {\n            // if no port is specified manually, use the protocol default\n            opts.port = this.secure ? \"443\" : \"80\";\n        }\n        this.hostname =\n            opts.hostname ||\n                (typeof location !== \"undefined\" ? location.hostname : \"localhost\");\n        this.port =\n            opts.port ||\n                (typeof location !== \"undefined\" && location.port\n                    ? location.port\n                    : this.secure\n                        ? \"443\"\n                        : \"80\");\n        this.transports = opts.transports || [\n            \"polling\",\n            \"websocket\",\n            \"webtransport\",\n        ];\n        this.writeBuffer = [];\n        this.prevBufferLen = 0;\n        this.opts = Object.assign({\n            path: \"/engine.io\",\n            agent: false,\n            withCredentials: false,\n            upgrade: true,\n            timestampParam: \"t\",\n            rememberUpgrade: false,\n            addTrailingSlash: true,\n            rejectUnauthorized: true,\n            perMessageDeflate: {\n                threshold: 1024,\n            },\n            transportOptions: {},\n            closeOnBeforeunload: false,\n        }, opts);\n        this.opts.path =\n            this.opts.path.replace(/\\/$/, \"\") +\n                (this.opts.addTrailingSlash ? \"/\" : \"\");\n        if (typeof this.opts.query === \"string\") {\n            this.opts.query = decode(this.opts.query);\n        }\n        // set on handshake\n        this.id = null;\n        this.upgrades = null;\n        this.pingInterval = null;\n        this.pingTimeout = null;\n        // set on heartbeat\n        this.pingTimeoutTimer = null;\n        if (typeof addEventListener === \"function\") {\n            if (this.opts.closeOnBeforeunload) {\n                // Firefox closes the connection when the \"beforeunload\" event is emitted but not Chrome. This event listener\n                // ensures every browser behaves the same (no \"disconnect\" event at the Socket.IO level when the page is\n                // closed/reloaded)\n                this.beforeunloadEventListener = () => {\n                    if (this.transport) {\n                        // silently close the transport\n                        this.transport.removeAllListeners();\n                        this.transport.close();\n                    }\n                };\n                addEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n            }\n            if (this.hostname !== \"localhost\") {\n                this.offlineEventListener = () => {\n                    this.onClose(\"transport close\", {\n                        description: \"network connection lost\",\n                    });\n                };\n                addEventListener(\"offline\", this.offlineEventListener, false);\n            }\n        }\n        this.open();\n    }\n    /**\n     * Creates transport of the given type.\n     *\n     * @param {String} name - transport name\n     * @return {Transport}\n     * @private\n     */\n    createTransport(name) {\n        const query = Object.assign({}, this.opts.query);\n        // append engine.io protocol identifier\n        query.EIO = protocol;\n        // transport name\n        query.transport = name;\n        // session id if we already have one\n        if (this.id)\n            query.sid = this.id;\n        const opts = Object.assign({}, this.opts, {\n            query,\n            socket: this,\n            hostname: this.hostname,\n            secure: this.secure,\n            port: this.port,\n        }, this.opts.transportOptions[name]);\n        return new transports[name](opts);\n    }\n    /**\n     * Initializes transport to use and starts probe.\n     *\n     * @private\n     */\n    open() {\n        let transport;\n        if (this.opts.rememberUpgrade &&\n            Socket.priorWebsocketSuccess &&\n            this.transports.indexOf(\"websocket\") !== -1) {\n            transport = \"websocket\";\n        }\n        else if (0 === this.transports.length) {\n            // Emit error on next tick so it can be listened to\n            this.setTimeoutFn(() => {\n                this.emitReserved(\"error\", \"No transports available\");\n            }, 0);\n            return;\n        }\n        else {\n            transport = this.transports[0];\n        }\n        this.readyState = \"opening\";\n        // Retry with the next transport if the transport is disabled (jsonp: false)\n        try {\n            transport = this.createTransport(transport);\n        }\n        catch (e) {\n            this.transports.shift();\n            this.open();\n            return;\n        }\n        transport.open();\n        this.setTransport(transport);\n    }\n    /**\n     * Sets the current transport. Disables the existing one (if any).\n     *\n     * @private\n     */\n    setTransport(transport) {\n        if (this.transport) {\n            this.transport.removeAllListeners();\n        }\n        // set up transport\n        this.transport = transport;\n        // set up transport listeners\n        transport\n            .on(\"drain\", this.onDrain.bind(this))\n            .on(\"packet\", this.onPacket.bind(this))\n            .on(\"error\", this.onError.bind(this))\n            .on(\"close\", (reason) => this.onClose(\"transport close\", reason));\n    }\n    /**\n     * Probes a transport.\n     *\n     * @param {String} name - transport name\n     * @private\n     */\n    probe(name) {\n        let transport = this.createTransport(name);\n        let failed = false;\n        Socket.priorWebsocketSuccess = false;\n        const onTransportOpen = () => {\n            if (failed)\n                return;\n            transport.send([{ type: \"ping\", data: \"probe\" }]);\n            transport.once(\"packet\", (msg) => {\n                if (failed)\n                    return;\n                if (\"pong\" === msg.type && \"probe\" === msg.data) {\n                    this.upgrading = true;\n                    this.emitReserved(\"upgrading\", transport);\n                    if (!transport)\n                        return;\n                    Socket.priorWebsocketSuccess = \"websocket\" === transport.name;\n                    this.transport.pause(() => {\n                        if (failed)\n                            return;\n                        if (\"closed\" === this.readyState)\n                            return;\n                        cleanup();\n                        this.setTransport(transport);\n                        transport.send([{ type: \"upgrade\" }]);\n                        this.emitReserved(\"upgrade\", transport);\n                        transport = null;\n                        this.upgrading = false;\n                        this.flush();\n                    });\n                }\n                else {\n                    const err = new Error(\"probe error\");\n                    // @ts-ignore\n                    err.transport = transport.name;\n                    this.emitReserved(\"upgradeError\", err);\n                }\n            });\n        };\n        function freezeTransport() {\n            if (failed)\n                return;\n            // Any callback called by transport should be ignored since now\n            failed = true;\n            cleanup();\n            transport.close();\n            transport = null;\n        }\n        // Handle any error that happens while probing\n        const onerror = (err) => {\n            const error = new Error(\"probe error: \" + err);\n            // @ts-ignore\n            error.transport = transport.name;\n            freezeTransport();\n            this.emitReserved(\"upgradeError\", error);\n        };\n        function onTransportClose() {\n            onerror(\"transport closed\");\n        }\n        // When the socket is closed while we're probing\n        function onclose() {\n            onerror(\"socket closed\");\n        }\n        // When the socket is upgraded while we're probing\n        function onupgrade(to) {\n            if (transport && to.name !== transport.name) {\n                freezeTransport();\n            }\n        }\n        // Remove all listeners on the transport and on self\n        const cleanup = () => {\n            transport.removeListener(\"open\", onTransportOpen);\n            transport.removeListener(\"error\", onerror);\n            transport.removeListener(\"close\", onTransportClose);\n            this.off(\"close\", onclose);\n            this.off(\"upgrading\", onupgrade);\n        };\n        transport.once(\"open\", onTransportOpen);\n        transport.once(\"error\", onerror);\n        transport.once(\"close\", onTransportClose);\n        this.once(\"close\", onclose);\n        this.once(\"upgrading\", onupgrade);\n        if (this.upgrades.indexOf(\"webtransport\") !== -1 &&\n            name !== \"webtransport\") {\n            // favor WebTransport\n            this.setTimeoutFn(() => {\n                if (!failed) {\n                    transport.open();\n                }\n            }, 200);\n        }\n        else {\n            transport.open();\n        }\n    }\n    /**\n     * Called when connection is deemed open.\n     *\n     * @private\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        Socket.priorWebsocketSuccess = \"websocket\" === this.transport.name;\n        this.emitReserved(\"open\");\n        this.flush();\n        // we check for `readyState` in case an `open`\n        // listener already closed the socket\n        if (\"open\" === this.readyState && this.opts.upgrade) {\n            let i = 0;\n            const l = this.upgrades.length;\n            for (; i < l; i++) {\n                this.probe(this.upgrades[i]);\n            }\n        }\n    }\n    /**\n     * Handles a packet.\n     *\n     * @private\n     */\n    onPacket(packet) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            this.emitReserved(\"packet\", packet);\n            // Socket is live - any packet counts\n            this.emitReserved(\"heartbeat\");\n            this.resetPingTimeout();\n            switch (packet.type) {\n                case \"open\":\n                    this.onHandshake(JSON.parse(packet.data));\n                    break;\n                case \"ping\":\n                    this.sendPacket(\"pong\");\n                    this.emitReserved(\"ping\");\n                    this.emitReserved(\"pong\");\n                    break;\n                case \"error\":\n                    const err = new Error(\"server error\");\n                    // @ts-ignore\n                    err.code = packet.data;\n                    this.onError(err);\n                    break;\n                case \"message\":\n                    this.emitReserved(\"data\", packet.data);\n                    this.emitReserved(\"message\", packet.data);\n                    break;\n            }\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon handshake completion.\n     *\n     * @param {Object} data - handshake obj\n     * @private\n     */\n    onHandshake(data) {\n        this.emitReserved(\"handshake\", data);\n        this.id = data.sid;\n        this.transport.query.sid = data.sid;\n        this.upgrades = this.filterUpgrades(data.upgrades);\n        this.pingInterval = data.pingInterval;\n        this.pingTimeout = data.pingTimeout;\n        this.maxPayload = data.maxPayload;\n        this.onOpen();\n        // In case open handler closes socket\n        if (\"closed\" === this.readyState)\n            return;\n        this.resetPingTimeout();\n    }\n    /**\n     * Sets and resets ping timeout timer based on server pings.\n     *\n     * @private\n     */\n    resetPingTimeout() {\n        this.clearTimeoutFn(this.pingTimeoutTimer);\n        this.pingTimeoutTimer = this.setTimeoutFn(() => {\n            this.onClose(\"ping timeout\");\n        }, this.pingInterval + this.pingTimeout);\n        if (this.opts.autoUnref) {\n            this.pingTimeoutTimer.unref();\n        }\n    }\n    /**\n     * Called on `drain` event\n     *\n     * @private\n     */\n    onDrain() {\n        this.writeBuffer.splice(0, this.prevBufferLen);\n        // setting prevBufferLen = 0 is very important\n        // for example, when upgrading, upgrade packet is sent over,\n        // and a nonzero prevBufferLen could cause problems on `drain`\n        this.prevBufferLen = 0;\n        if (0 === this.writeBuffer.length) {\n            this.emitReserved(\"drain\");\n        }\n        else {\n            this.flush();\n        }\n    }\n    /**\n     * Flush write buffers.\n     *\n     * @private\n     */\n    flush() {\n        if (\"closed\" !== this.readyState &&\n            this.transport.writable &&\n            !this.upgrading &&\n            this.writeBuffer.length) {\n            const packets = this.getWritablePackets();\n            this.transport.send(packets);\n            // keep track of current length of writeBuffer\n            // splice writeBuffer and callbackBuffer on `drain`\n            this.prevBufferLen = packets.length;\n            this.emitReserved(\"flush\");\n        }\n    }\n    /**\n     * Ensure the encoded size of the writeBuffer is below the maxPayload value sent by the server (only for HTTP\n     * long-polling)\n     *\n     * @private\n     */\n    getWritablePackets() {\n        const shouldCheckPayloadSize = this.maxPayload &&\n            this.transport.name === \"polling\" &&\n            this.writeBuffer.length > 1;\n        if (!shouldCheckPayloadSize) {\n            return this.writeBuffer;\n        }\n        let payloadSize = 1; // first packet type\n        for (let i = 0; i < this.writeBuffer.length; i++) {\n            const data = this.writeBuffer[i].data;\n            if (data) {\n                payloadSize += byteLength(data);\n            }\n            if (i > 0 && payloadSize > this.maxPayload) {\n                return this.writeBuffer.slice(0, i);\n            }\n            payloadSize += 2; // separator + packet type\n        }\n        return this.writeBuffer;\n    }\n    /**\n     * Sends a message.\n     *\n     * @param {String} msg - message.\n     * @param {Object} options.\n     * @param {Function} callback function.\n     * @return {Socket} for chaining.\n     */\n    write(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    send(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param {String} type: packet type.\n     * @param {String} data.\n     * @param {Object} options.\n     * @param {Function} fn - callback function.\n     * @private\n     */\n    sendPacket(type, data, options, fn) {\n        if (\"function\" === typeof data) {\n            fn = data;\n            data = undefined;\n        }\n        if (\"function\" === typeof options) {\n            fn = options;\n            options = null;\n        }\n        if (\"closing\" === this.readyState || \"closed\" === this.readyState) {\n            return;\n        }\n        options = options || {};\n        options.compress = false !== options.compress;\n        const packet = {\n            type: type,\n            data: data,\n            options: options,\n        };\n        this.emitReserved(\"packetCreate\", packet);\n        this.writeBuffer.push(packet);\n        if (fn)\n            this.once(\"flush\", fn);\n        this.flush();\n    }\n    /**\n     * Closes the connection.\n     */\n    close() {\n        const close = () => {\n            this.onClose(\"forced close\");\n            this.transport.close();\n        };\n        const cleanupAndClose = () => {\n            this.off(\"upgrade\", cleanupAndClose);\n            this.off(\"upgradeError\", cleanupAndClose);\n            close();\n        };\n        const waitForUpgrade = () => {\n            // wait for upgrade to finish since we can't send packets while pausing a transport\n            this.once(\"upgrade\", cleanupAndClose);\n            this.once(\"upgradeError\", cleanupAndClose);\n        };\n        if (\"opening\" === this.readyState || \"open\" === this.readyState) {\n            this.readyState = \"closing\";\n            if (this.writeBuffer.length) {\n                this.once(\"drain\", () => {\n                    if (this.upgrading) {\n                        waitForUpgrade();\n                    }\n                    else {\n                        close();\n                    }\n                });\n            }\n            else if (this.upgrading) {\n                waitForUpgrade();\n            }\n            else {\n                close();\n            }\n        }\n        return this;\n    }\n    /**\n     * Called upon transport error\n     *\n     * @private\n     */\n    onError(err) {\n        Socket.priorWebsocketSuccess = false;\n        this.emitReserved(\"error\", err);\n        this.onClose(\"transport error\", err);\n    }\n    /**\n     * Called upon transport close.\n     *\n     * @private\n     */\n    onClose(reason, description) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            // clear timers\n            this.clearTimeoutFn(this.pingTimeoutTimer);\n            // stop event from firing again for transport\n            this.transport.removeAllListeners(\"close\");\n            // ensure transport won't stay open\n            this.transport.close();\n            // ignore further transport communication\n            this.transport.removeAllListeners();\n            if (typeof removeEventListener === \"function\") {\n                removeEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n                removeEventListener(\"offline\", this.offlineEventListener, false);\n            }\n            // set ready state\n            this.readyState = \"closed\";\n            // clear session id\n            this.id = null;\n            // emit close event\n            this.emitReserved(\"close\", reason, description);\n            // clean buffers after, so users can still\n            // grab the buffers on `close` event\n            this.writeBuffer = [];\n            this.prevBufferLen = 0;\n        }\n    }\n    /**\n     * Filters upgrades, returning only those matching client transports.\n     *\n     * @param {Array} upgrades - server upgrades\n     * @private\n     */\n    filterUpgrades(upgrades) {\n        const filteredUpgrades = [];\n        let i = 0;\n        const j = upgrades.length;\n        for (; i < j; i++) {\n            if (~this.transports.indexOf(upgrades[i]))\n                filteredUpgrades.push(upgrades[i]);\n        }\n        return filteredUpgrades;\n    }\n}\nSocket.protocol = protocol;\n", "import { Socket } from \"./socket.js\";\nexport { Socket };\nexport const protocol = Socket.protocol;\nexport { Transport, TransportError } from \"./transport.js\";\nexport { transports } from \"./transports/index.js\";\nexport { installTimerFunctions } from \"./util.js\";\nexport { parse } from \"./contrib/parseuri.js\";\nexport { nextTick } from \"./transports/websocket-constructor.js\";\n", "import { parse } from \"engine.io-client\";\n/**\n * URL parser.\n *\n * @param uri - url\n * @param path - the request path of the connection\n * @param loc - An object meant to mimic window.location.\n *        Defaults to window.location.\n * @public\n */\nexport function url(uri, path = \"\", loc) {\n    let obj = uri;\n    // default to window.location\n    loc = loc || (typeof location !== \"undefined\" && location);\n    if (null == uri)\n        uri = loc.protocol + \"//\" + loc.host;\n    // relative path support\n    if (typeof uri === \"string\") {\n        if (\"/\" === uri.charAt(0)) {\n            if (\"/\" === uri.charAt(1)) {\n                uri = loc.protocol + uri;\n            }\n            else {\n                uri = loc.host + uri;\n            }\n        }\n        if (!/^(https?|wss?):\\/\\//.test(uri)) {\n            if (\"undefined\" !== typeof loc) {\n                uri = loc.protocol + \"//\" + uri;\n            }\n            else {\n                uri = \"https://\" + uri;\n            }\n        }\n        // parse\n        obj = parse(uri);\n    }\n    // make sure we treat `localhost:80` and `localhost` equally\n    if (!obj.port) {\n        if (/^(http|ws)$/.test(obj.protocol)) {\n            obj.port = \"80\";\n        }\n        else if (/^(http|ws)s$/.test(obj.protocol)) {\n            obj.port = \"443\";\n        }\n    }\n    obj.path = obj.path || \"/\";\n    const ipv6 = obj.host.indexOf(\":\") !== -1;\n    const host = ipv6 ? \"[\" + obj.host + \"]\" : obj.host;\n    // define unique id\n    obj.id = obj.protocol + \"://\" + host + \":\" + obj.port + path;\n    // define href\n    obj.href =\n        obj.protocol +\n            \"://\" +\n            host +\n            (loc && loc.port === obj.port ? \"\" : \":\" + obj.port);\n    return obj;\n}\n", "import { Emitter } from \"@socket.io/component-emitter\";\nimport { deconstructPacket, reconstructPacket } from \"./binary.js\";\nimport { isBinary, hasBinary } from \"./is-binary.js\";\n/**\n * These strings must not be used as event names, as they have a special meaning.\n */\nconst RESERVED_EVENTS = [\n    \"connect\",\n    \"connect_error\",\n    \"disconnect\",\n    \"disconnecting\",\n    \"newListener\",\n    \"removeListener\", // used by the Node.js EventEmitter\n];\n/**\n * Protocol version.\n *\n * @public\n */\nexport const protocol = 5;\nexport var PacketType;\n(function (PacketType) {\n    PacketType[PacketType[\"CONNECT\"] = 0] = \"CONNECT\";\n    PacketType[PacketType[\"DISCONNECT\"] = 1] = \"DISCONNECT\";\n    PacketType[PacketType[\"EVENT\"] = 2] = \"EVENT\";\n    PacketType[PacketType[\"ACK\"] = 3] = \"ACK\";\n    PacketType[PacketType[\"CONNECT_ERROR\"] = 4] = \"CONNECT_ERROR\";\n    PacketType[PacketType[\"BINARY_EVENT\"] = 5] = \"BINARY_EVENT\";\n    PacketType[PacketType[\"BINARY_ACK\"] = 6] = \"BINARY_ACK\";\n})(PacketType || (PacketType = {}));\n/**\n * A socket.io Encoder instance\n */\nexport class Encoder {\n    /**\n     * Encoder constructor\n     *\n     * @param {function} replacer - custom replacer to pass down to JSON.parse\n     */\n    constructor(replacer) {\n        this.replacer = replacer;\n    }\n    /**\n     * Encode a packet as a single string if non-binary, or as a\n     * buffer sequence, depending on packet type.\n     *\n     * @param {Object} obj - packet object\n     */\n    encode(obj) {\n        if (obj.type === PacketType.EVENT || obj.type === PacketType.ACK) {\n            if (hasBinary(obj)) {\n                return this.encodeAsBinary({\n                    type: obj.type === PacketType.EVENT\n                        ? PacketType.BINARY_EVENT\n                        : PacketType.BINARY_ACK,\n                    nsp: obj.nsp,\n                    data: obj.data,\n                    id: obj.id,\n                });\n            }\n        }\n        return [this.encodeAsString(obj)];\n    }\n    /**\n     * Encode packet as string.\n     */\n    encodeAsString(obj) {\n        // first is type\n        let str = \"\" + obj.type;\n        // attachments if we have them\n        if (obj.type === PacketType.BINARY_EVENT ||\n            obj.type === PacketType.BINARY_ACK) {\n            str += obj.attachments + \"-\";\n        }\n        // if we have a namespace other than `/`\n        // we append it followed by a comma `,`\n        if (obj.nsp && \"/\" !== obj.nsp) {\n            str += obj.nsp + \",\";\n        }\n        // immediately followed by the id\n        if (null != obj.id) {\n            str += obj.id;\n        }\n        // json data\n        if (null != obj.data) {\n            str += JSON.stringify(obj.data, this.replacer);\n        }\n        return str;\n    }\n    /**\n     * Encode packet as 'buffer sequence' by removing blobs, and\n     * deconstructing packet into object with placeholders and\n     * a list of buffers.\n     */\n    encodeAsBinary(obj) {\n        const deconstruction = deconstructPacket(obj);\n        const pack = this.encodeAsString(deconstruction.packet);\n        const buffers = deconstruction.buffers;\n        buffers.unshift(pack); // add packet info to beginning of data list\n        return buffers; // write all the buffers\n    }\n}\n// see https://stackoverflow.com/questions/8511281/check-if-a-value-is-an-object-in-javascript\nfunction isObject(value) {\n    return Object.prototype.toString.call(value) === \"[object Object]\";\n}\n/**\n * A socket.io Decoder instance\n *\n * @return {Object} decoder\n */\nexport class Decoder extends Emitter {\n    /**\n     * Decoder constructor\n     *\n     * @param {function} reviver - custom reviver to pass down to JSON.stringify\n     */\n    constructor(reviver) {\n        super();\n        this.reviver = reviver;\n    }\n    /**\n     * Decodes an encoded packet string into packet JSON.\n     *\n     * @param {String} obj - encoded packet\n     */\n    add(obj) {\n        let packet;\n        if (typeof obj === \"string\") {\n            if (this.reconstructor) {\n                throw new Error(\"got plaintext data when reconstructing a packet\");\n            }\n            packet = this.decodeString(obj);\n            const isBinaryEvent = packet.type === PacketType.BINARY_EVENT;\n            if (isBinaryEvent || packet.type === PacketType.BINARY_ACK) {\n                packet.type = isBinaryEvent ? PacketType.EVENT : PacketType.ACK;\n                // binary packet's json\n                this.reconstructor = new BinaryReconstructor(packet);\n                // no attachments, labeled binary but no binary data to follow\n                if (packet.attachments === 0) {\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n            else {\n                // non-binary full packet\n                super.emitReserved(\"decoded\", packet);\n            }\n        }\n        else if (isBinary(obj) || obj.base64) {\n            // raw binary data\n            if (!this.reconstructor) {\n                throw new Error(\"got binary data when not reconstructing a packet\");\n            }\n            else {\n                packet = this.reconstructor.takeBinaryData(obj);\n                if (packet) {\n                    // received final buffer\n                    this.reconstructor = null;\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n        }\n        else {\n            throw new Error(\"Unknown type: \" + obj);\n        }\n    }\n    /**\n     * Decode a packet String (JSON data)\n     *\n     * @param {String} str\n     * @return {Object} packet\n     */\n    decodeString(str) {\n        let i = 0;\n        // look up type\n        const p = {\n            type: Number(str.charAt(0)),\n        };\n        if (PacketType[p.type] === undefined) {\n            throw new Error(\"unknown packet type \" + p.type);\n        }\n        // look up attachments if type binary\n        if (p.type === PacketType.BINARY_EVENT ||\n            p.type === PacketType.BINARY_ACK) {\n            const start = i + 1;\n            while (str.charAt(++i) !== \"-\" && i != str.length) { }\n            const buf = str.substring(start, i);\n            if (buf != Number(buf) || str.charAt(i) !== \"-\") {\n                throw new Error(\"Illegal attachments\");\n            }\n            p.attachments = Number(buf);\n        }\n        // look up namespace (if any)\n        if (\"/\" === str.charAt(i + 1)) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (\",\" === c)\n                    break;\n                if (i === str.length)\n                    break;\n            }\n            p.nsp = str.substring(start, i);\n        }\n        else {\n            p.nsp = \"/\";\n        }\n        // look up id\n        const next = str.charAt(i + 1);\n        if (\"\" !== next && Number(next) == next) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (null == c || Number(c) != c) {\n                    --i;\n                    break;\n                }\n                if (i === str.length)\n                    break;\n            }\n            p.id = Number(str.substring(start, i + 1));\n        }\n        // look up json data\n        if (str.charAt(++i)) {\n            const payload = this.tryParse(str.substr(i));\n            if (Decoder.isPayloadValid(p.type, payload)) {\n                p.data = payload;\n            }\n            else {\n                throw new Error(\"invalid payload\");\n            }\n        }\n        return p;\n    }\n    tryParse(str) {\n        try {\n            return JSON.parse(str, this.reviver);\n        }\n        catch (e) {\n            return false;\n        }\n    }\n    static isPayloadValid(type, payload) {\n        switch (type) {\n            case PacketType.CONNECT:\n                return isObject(payload);\n            case PacketType.DISCONNECT:\n                return payload === undefined;\n            case PacketType.CONNECT_ERROR:\n                return typeof payload === \"string\" || isObject(payload);\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                return (Array.isArray(payload) &&\n                    (typeof payload[0] === \"number\" ||\n                        (typeof payload[0] === \"string\" &&\n                            RESERVED_EVENTS.indexOf(payload[0]) === -1)));\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                return Array.isArray(payload);\n        }\n    }\n    /**\n     * Deallocates a parser's resources\n     */\n    destroy() {\n        if (this.reconstructor) {\n            this.reconstructor.finishedReconstruction();\n            this.reconstructor = null;\n        }\n    }\n}\n/**\n * A manager of a binary event's 'buffer sequence'. Should\n * be constructed whenever a packet of type BINARY_EVENT is\n * decoded.\n *\n * @param {Object} packet\n * @return {BinaryReconstructor} initialized reconstructor\n */\nclass BinaryReconstructor {\n    constructor(packet) {\n        this.packet = packet;\n        this.buffers = [];\n        this.reconPack = packet;\n    }\n    /**\n     * Method to be called when binary data received from connection\n     * after a BINARY_EVENT packet.\n     *\n     * @param {Buffer | ArrayBuffer} binData - the raw binary data received\n     * @return {null | Object} returns null if more binary data is expected or\n     *   a reconstructed packet object if all buffers have been received.\n     */\n    takeBinaryData(binData) {\n        this.buffers.push(binData);\n        if (this.buffers.length === this.reconPack.attachments) {\n            // done with buffer list\n            const packet = reconstructPacket(this.reconPack, this.buffers);\n            this.finishedReconstruction();\n            return packet;\n        }\n        return null;\n    }\n    /**\n     * Cleans up binary packet reconstruction variables.\n     */\n    finishedReconstruction() {\n        this.reconPack = null;\n        this.buffers = [];\n    }\n}\n", "const withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nconst isView = (obj) => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj.buffer instanceof ArrayBuffer;\n};\nconst toString = Object.prototype.toString;\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeFile = typeof File === \"function\" ||\n    (typeof File !== \"undefined\" &&\n        toString.call(File) === \"[object FileConstructor]\");\n/**\n * Returns true if obj is a Buffer, an ArrayBuffer, a Blob or a File.\n *\n * @private\n */\nexport function isBinary(obj) {\n    return ((withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj))) ||\n        (withNativeBlob && obj instanceof Blob) ||\n        (withNativeFile && obj instanceof File));\n}\nexport function hasBinary(obj, toJSON) {\n    if (!obj || typeof obj !== \"object\") {\n        return false;\n    }\n    if (Array.isArray(obj)) {\n        for (let i = 0, l = obj.length; i < l; i++) {\n            if (hasBinary(obj[i])) {\n                return true;\n            }\n        }\n        return false;\n    }\n    if (isBinary(obj)) {\n        return true;\n    }\n    if (obj.toJSON &&\n        typeof obj.toJSON === \"function\" &&\n        arguments.length === 1) {\n        return hasBinary(obj.toJSON(), true);\n    }\n    for (const key in obj) {\n        if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {\n            return true;\n        }\n    }\n    return false;\n}\n", "import { isBinary } from \"./is-binary.js\";\n/**\n * Replaces every Buffer | ArrayBuffer | Blob | File in packet with a numbered placeholder.\n *\n * @param {Object} packet - socket.io event packet\n * @return {Object} with deconstructed packet and list of buffers\n * @public\n */\nexport function deconstructPacket(packet) {\n    const buffers = [];\n    const packetData = packet.data;\n    const pack = packet;\n    pack.data = _deconstructPacket(packetData, buffers);\n    pack.attachments = buffers.length; // number of binary 'attachments'\n    return { packet: pack, buffers: buffers };\n}\nfunction _deconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (isBinary(data)) {\n        const placeholder = { _placeholder: true, num: buffers.length };\n        buffers.push(data);\n        return placeholder;\n    }\n    else if (Array.isArray(data)) {\n        const newData = new Array(data.length);\n        for (let i = 0; i < data.length; i++) {\n            newData[i] = _deconstructPacket(data[i], buffers);\n        }\n        return newData;\n    }\n    else if (typeof data === \"object\" && !(data instanceof Date)) {\n        const newData = {};\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                newData[key] = _deconstructPacket(data[key], buffers);\n            }\n        }\n        return newData;\n    }\n    return data;\n}\n/**\n * Reconstructs a binary packet from its placeholder packet and buffers\n *\n * @param {Object} packet - event packet with placeholders\n * @param {Array} buffers - binary buffers to put in placeholder positions\n * @return {Object} reconstructed packet\n * @public\n */\nexport function reconstructPacket(packet, buffers) {\n    packet.data = _reconstructPacket(packet.data, buffers);\n    delete packet.attachments; // no longer useful\n    return packet;\n}\nfunction _reconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (data && data._placeholder === true) {\n        const isIndexValid = typeof data.num === \"number\" &&\n            data.num >= 0 &&\n            data.num < buffers.length;\n        if (isIndexValid) {\n            return buffers[data.num]; // appropriate buffer (should be natural order anyway)\n        }\n        else {\n            throw new Error(\"illegal attachments\");\n        }\n    }\n    else if (Array.isArray(data)) {\n        for (let i = 0; i < data.length; i++) {\n            data[i] = _reconstructPacket(data[i], buffers);\n        }\n    }\n    else if (typeof data === \"object\") {\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                data[key] = _reconstructPacket(data[key], buffers);\n            }\n        }\n    }\n    return data;\n}\n", "export function on(obj, ev, fn) {\n    obj.on(ev, fn);\n    return function subDestroy() {\n        obj.off(ev, fn);\n    };\n}\n", "import { PacketType } from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\n/**\n * Internal events.\n * These events can't be emitted by the user.\n */\nconst RESERVED_EVENTS = Object.freeze({\n    connect: 1,\n    connect_error: 1,\n    disconnect: 1,\n    disconnecting: 1,\n    // EventEmitter reserved events: https://nodejs.org/api/events.html#events_event_newlistener\n    newListener: 1,\n    removeListener: 1,\n});\n/**\n * A Socket is the fundamental class for interacting with the server.\n *\n * A Socket belongs to a certain Namespace (by default /) and uses an underlying {@link Manager} to communicate.\n *\n * @example\n * const socket = io();\n *\n * socket.on(\"connect\", () => {\n *   console.log(\"connected\");\n * });\n *\n * // send an event to the server\n * socket.emit(\"foo\", \"bar\");\n *\n * socket.on(\"foobar\", () => {\n *   // an event was received from the server\n * });\n *\n * // upon disconnection\n * socket.on(\"disconnect\", (reason) => {\n *   console.log(`disconnected due to ${reason}`);\n * });\n */\nexport class Socket extends Emitter {\n    /**\n     * `Socket` constructor.\n     */\n    constructor(io, nsp, opts) {\n        super();\n        /**\n         * Whether the socket is currently connected to the server.\n         *\n         * @example\n         * const socket = io();\n         *\n         * socket.on(\"connect\", () => {\n         *   console.log(socket.connected); // true\n         * });\n         *\n         * socket.on(\"disconnect\", () => {\n         *   console.log(socket.connected); // false\n         * });\n         */\n        this.connected = false;\n        /**\n         * Whether the connection state was recovered after a temporary disconnection. In that case, any missed packets will\n         * be transmitted by the server.\n         */\n        this.recovered = false;\n        /**\n         * Buffer for packets received before the CONNECT packet\n         */\n        this.receiveBuffer = [];\n        /**\n         * Buffer for packets that will be sent once the socket is connected\n         */\n        this.sendBuffer = [];\n        /**\n         * The queue of packets to be sent with retry in case of failure.\n         *\n         * Packets are sent one by one, each waiting for the server acknowledgement, in order to guarantee the delivery order.\n         * @private\n         */\n        this._queue = [];\n        /**\n         * A sequence to generate the ID of the {@link QueuedPacket}.\n         * @private\n         */\n        this._queueSeq = 0;\n        this.ids = 0;\n        this.acks = {};\n        this.flags = {};\n        this.io = io;\n        this.nsp = nsp;\n        if (opts && opts.auth) {\n            this.auth = opts.auth;\n        }\n        this._opts = Object.assign({}, opts);\n        if (this.io._autoConnect)\n            this.open();\n    }\n    /**\n     * Whether the socket is currently disconnected\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"connect\", () => {\n     *   console.log(socket.disconnected); // false\n     * });\n     *\n     * socket.on(\"disconnect\", () => {\n     *   console.log(socket.disconnected); // true\n     * });\n     */\n    get disconnected() {\n        return !this.connected;\n    }\n    /**\n     * Subscribe to open, close and packet events\n     *\n     * @private\n     */\n    subEvents() {\n        if (this.subs)\n            return;\n        const io = this.io;\n        this.subs = [\n            on(io, \"open\", this.onopen.bind(this)),\n            on(io, \"packet\", this.onpacket.bind(this)),\n            on(io, \"error\", this.onerror.bind(this)),\n            on(io, \"close\", this.onclose.bind(this)),\n        ];\n    }\n    /**\n     * Whether the Socket will try to reconnect when its Manager connects or reconnects.\n     *\n     * @example\n     * const socket = io();\n     *\n     * console.log(socket.active); // true\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   if (reason === \"io server disconnect\") {\n     *     // the disconnection was initiated by the server, you need to manually reconnect\n     *     console.log(socket.active); // false\n     *   }\n     *   // else the socket will automatically try to reconnect\n     *   console.log(socket.active); // true\n     * });\n     */\n    get active() {\n        return !!this.subs;\n    }\n    /**\n     * \"Opens\" the socket.\n     *\n     * @example\n     * const socket = io({\n     *   autoConnect: false\n     * });\n     *\n     * socket.connect();\n     */\n    connect() {\n        if (this.connected)\n            return this;\n        this.subEvents();\n        if (!this.io[\"_reconnecting\"])\n            this.io.open(); // ensure open\n        if (\"open\" === this.io._readyState)\n            this.onopen();\n        return this;\n    }\n    /**\n     * Alias for {@link connect()}.\n     */\n    open() {\n        return this.connect();\n    }\n    /**\n     * Sends a `message` event.\n     *\n     * This method mimics the WebSocket.send() method.\n     *\n     * @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send\n     *\n     * @example\n     * socket.send(\"hello\");\n     *\n     * // this is equivalent to\n     * socket.emit(\"message\", \"hello\");\n     *\n     * @return self\n     */\n    send(...args) {\n        args.unshift(\"message\");\n        this.emit.apply(this, args);\n        return this;\n    }\n    /**\n     * Override `emit`.\n     * If the event is in `events`, it's emitted normally.\n     *\n     * @example\n     * socket.emit(\"hello\", \"world\");\n     *\n     * // all serializable datastructures are supported (no need to call JSON.stringify)\n     * socket.emit(\"hello\", 1, \"2\", { 3: [\"4\"], 5: Uint8Array.from([6]) });\n     *\n     * // with an acknowledgement from the server\n     * socket.emit(\"hello\", \"world\", (val) => {\n     *   // ...\n     * });\n     *\n     * @return self\n     */\n    emit(ev, ...args) {\n        if (RESERVED_EVENTS.hasOwnProperty(ev)) {\n            throw new Error('\"' + ev.toString() + '\" is a reserved event name');\n        }\n        args.unshift(ev);\n        if (this._opts.retries && !this.flags.fromQueue && !this.flags.volatile) {\n            this._addToQueue(args);\n            return this;\n        }\n        const packet = {\n            type: PacketType.EVENT,\n            data: args,\n        };\n        packet.options = {};\n        packet.options.compress = this.flags.compress !== false;\n        // event ack callback\n        if (\"function\" === typeof args[args.length - 1]) {\n            const id = this.ids++;\n            const ack = args.pop();\n            this._registerAckCallback(id, ack);\n            packet.id = id;\n        }\n        const isTransportWritable = this.io.engine &&\n            this.io.engine.transport &&\n            this.io.engine.transport.writable;\n        const discardPacket = this.flags.volatile && (!isTransportWritable || !this.connected);\n        if (discardPacket) {\n        }\n        else if (this.connected) {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        }\n        else {\n            this.sendBuffer.push(packet);\n        }\n        this.flags = {};\n        return this;\n    }\n    /**\n     * @private\n     */\n    _registerAckCallback(id, ack) {\n        var _a;\n        const timeout = (_a = this.flags.timeout) !== null && _a !== void 0 ? _a : this._opts.ackTimeout;\n        if (timeout === undefined) {\n            this.acks[id] = ack;\n            return;\n        }\n        // @ts-ignore\n        const timer = this.io.setTimeoutFn(() => {\n            delete this.acks[id];\n            for (let i = 0; i < this.sendBuffer.length; i++) {\n                if (this.sendBuffer[i].id === id) {\n                    this.sendBuffer.splice(i, 1);\n                }\n            }\n            ack.call(this, new Error(\"operation has timed out\"));\n        }, timeout);\n        this.acks[id] = (...args) => {\n            // @ts-ignore\n            this.io.clearTimeoutFn(timer);\n            ack.apply(this, [null, ...args]);\n        };\n    }\n    /**\n     * Emits an event and waits for an acknowledgement\n     *\n     * @example\n     * // without timeout\n     * const response = await socket.emitWithAck(\"hello\", \"world\");\n     *\n     * // with a specific timeout\n     * try {\n     *   const response = await socket.timeout(1000).emitWithAck(\"hello\", \"world\");\n     * } catch (err) {\n     *   // the server did not acknowledge the event in the given delay\n     * }\n     *\n     * @return a Promise that will be fulfilled when the server acknowledges the event\n     */\n    emitWithAck(ev, ...args) {\n        // the timeout flag is optional\n        const withErr = this.flags.timeout !== undefined || this._opts.ackTimeout !== undefined;\n        return new Promise((resolve, reject) => {\n            args.push((arg1, arg2) => {\n                if (withErr) {\n                    return arg1 ? reject(arg1) : resolve(arg2);\n                }\n                else {\n                    return resolve(arg1);\n                }\n            });\n            this.emit(ev, ...args);\n        });\n    }\n    /**\n     * Add the packet to the queue.\n     * @param args\n     * @private\n     */\n    _addToQueue(args) {\n        let ack;\n        if (typeof args[args.length - 1] === \"function\") {\n            ack = args.pop();\n        }\n        const packet = {\n            id: this._queueSeq++,\n            tryCount: 0,\n            pending: false,\n            args,\n            flags: Object.assign({ fromQueue: true }, this.flags),\n        };\n        args.push((err, ...responseArgs) => {\n            if (packet !== this._queue[0]) {\n                // the packet has already been acknowledged\n                return;\n            }\n            const hasError = err !== null;\n            if (hasError) {\n                if (packet.tryCount > this._opts.retries) {\n                    this._queue.shift();\n                    if (ack) {\n                        ack(err);\n                    }\n                }\n            }\n            else {\n                this._queue.shift();\n                if (ack) {\n                    ack(null, ...responseArgs);\n                }\n            }\n            packet.pending = false;\n            return this._drainQueue();\n        });\n        this._queue.push(packet);\n        this._drainQueue();\n    }\n    /**\n     * Send the first packet of the queue, and wait for an acknowledgement from the server.\n     * @param force - whether to resend a packet that has not been acknowledged yet\n     *\n     * @private\n     */\n    _drainQueue(force = false) {\n        if (!this.connected || this._queue.length === 0) {\n            return;\n        }\n        const packet = this._queue[0];\n        if (packet.pending && !force) {\n            return;\n        }\n        packet.pending = true;\n        packet.tryCount++;\n        this.flags = packet.flags;\n        this.emit.apply(this, packet.args);\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param packet\n     * @private\n     */\n    packet(packet) {\n        packet.nsp = this.nsp;\n        this.io._packet(packet);\n    }\n    /**\n     * Called upon engine `open`.\n     *\n     * @private\n     */\n    onopen() {\n        if (typeof this.auth == \"function\") {\n            this.auth((data) => {\n                this._sendConnectPacket(data);\n            });\n        }\n        else {\n            this._sendConnectPacket(this.auth);\n        }\n    }\n    /**\n     * Sends a CONNECT packet to initiate the Socket.IO session.\n     *\n     * @param data\n     * @private\n     */\n    _sendConnectPacket(data) {\n        this.packet({\n            type: PacketType.CONNECT,\n            data: this._pid\n                ? Object.assign({ pid: this._pid, offset: this._lastOffset }, data)\n                : data,\n        });\n    }\n    /**\n     * Called upon engine or manager `error`.\n     *\n     * @param err\n     * @private\n     */\n    onerror(err) {\n        if (!this.connected) {\n            this.emitReserved(\"connect_error\", err);\n        }\n    }\n    /**\n     * Called upon engine `close`.\n     *\n     * @param reason\n     * @param description\n     * @private\n     */\n    onclose(reason, description) {\n        this.connected = false;\n        delete this.id;\n        this.emitReserved(\"disconnect\", reason, description);\n    }\n    /**\n     * Called with socket packet.\n     *\n     * @param packet\n     * @private\n     */\n    onpacket(packet) {\n        const sameNamespace = packet.nsp === this.nsp;\n        if (!sameNamespace)\n            return;\n        switch (packet.type) {\n            case PacketType.CONNECT:\n                if (packet.data && packet.data.sid) {\n                    this.onconnect(packet.data.sid, packet.data.pid);\n                }\n                else {\n                    this.emitReserved(\"connect_error\", new Error(\"It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)\"));\n                }\n                break;\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                this.onevent(packet);\n                break;\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                this.onack(packet);\n                break;\n            case PacketType.DISCONNECT:\n                this.ondisconnect();\n                break;\n            case PacketType.CONNECT_ERROR:\n                this.destroy();\n                const err = new Error(packet.data.message);\n                // @ts-ignore\n                err.data = packet.data.data;\n                this.emitReserved(\"connect_error\", err);\n                break;\n        }\n    }\n    /**\n     * Called upon a server event.\n     *\n     * @param packet\n     * @private\n     */\n    onevent(packet) {\n        const args = packet.data || [];\n        if (null != packet.id) {\n            args.push(this.ack(packet.id));\n        }\n        if (this.connected) {\n            this.emitEvent(args);\n        }\n        else {\n            this.receiveBuffer.push(Object.freeze(args));\n        }\n    }\n    emitEvent(args) {\n        if (this._anyListeners && this._anyListeners.length) {\n            const listeners = this._anyListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, args);\n            }\n        }\n        super.emit.apply(this, args);\n        if (this._pid && args.length && typeof args[args.length - 1] === \"string\") {\n            this._lastOffset = args[args.length - 1];\n        }\n    }\n    /**\n     * Produces an ack callback to emit with an event.\n     *\n     * @private\n     */\n    ack(id) {\n        const self = this;\n        let sent = false;\n        return function (...args) {\n            // prevent double callbacks\n            if (sent)\n                return;\n            sent = true;\n            self.packet({\n                type: PacketType.ACK,\n                id: id,\n                data: args,\n            });\n        };\n    }\n    /**\n     * Called upon a server acknowlegement.\n     *\n     * @param packet\n     * @private\n     */\n    onack(packet) {\n        const ack = this.acks[packet.id];\n        if (\"function\" === typeof ack) {\n            ack.apply(this, packet.data);\n            delete this.acks[packet.id];\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon server connect.\n     *\n     * @private\n     */\n    onconnect(id, pid) {\n        this.id = id;\n        this.recovered = pid && this._pid === pid;\n        this._pid = pid; // defined only if connection state recovery is enabled\n        this.connected = true;\n        this.emitBuffered();\n        this.emitReserved(\"connect\");\n        this._drainQueue(true);\n    }\n    /**\n     * Emit buffered events (received and emitted).\n     *\n     * @private\n     */\n    emitBuffered() {\n        this.receiveBuffer.forEach((args) => this.emitEvent(args));\n        this.receiveBuffer = [];\n        this.sendBuffer.forEach((packet) => {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        });\n        this.sendBuffer = [];\n    }\n    /**\n     * Called upon server disconnect.\n     *\n     * @private\n     */\n    ondisconnect() {\n        this.destroy();\n        this.onclose(\"io server disconnect\");\n    }\n    /**\n     * Called upon forced client/server side disconnections,\n     * this method ensures the manager stops tracking us and\n     * that reconnections don't get triggered for this.\n     *\n     * @private\n     */\n    destroy() {\n        if (this.subs) {\n            // clean subscriptions to avoid reconnections\n            this.subs.forEach((subDestroy) => subDestroy());\n            this.subs = undefined;\n        }\n        this.io[\"_destroy\"](this);\n    }\n    /**\n     * Disconnects the socket manually. In that case, the socket will not try to reconnect.\n     *\n     * If this is the last active Socket instance of the {@link Manager}, the low-level connection will be closed.\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   // console.log(reason); prints \"io client disconnect\"\n     * });\n     *\n     * socket.disconnect();\n     *\n     * @return self\n     */\n    disconnect() {\n        if (this.connected) {\n            this.packet({ type: PacketType.DISCONNECT });\n        }\n        // remove socket from pool\n        this.destroy();\n        if (this.connected) {\n            // fire events\n            this.onclose(\"io client disconnect\");\n        }\n        return this;\n    }\n    /**\n     * Alias for {@link disconnect()}.\n     *\n     * @return self\n     */\n    close() {\n        return this.disconnect();\n    }\n    /**\n     * Sets the compress flag.\n     *\n     * @example\n     * socket.compress(false).emit(\"hello\");\n     *\n     * @param compress - if `true`, compresses the sending data\n     * @return self\n     */\n    compress(compress) {\n        this.flags.compress = compress;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the event message will be dropped when this socket is not\n     * ready to send messages.\n     *\n     * @example\n     * socket.volatile.emit(\"hello\"); // the server may or may not receive it\n     *\n     * @returns self\n     */\n    get volatile() {\n        this.flags.volatile = true;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the callback will be called with an error when the\n     * given number of milliseconds have elapsed without an acknowledgement from the server:\n     *\n     * @example\n     * socket.timeout(5000).emit(\"my-event\", (err) => {\n     *   if (err) {\n     *     // the server did not acknowledge the event in the given delay\n     *   }\n     * });\n     *\n     * @returns self\n     */\n    timeout(timeout) {\n        this.flags.timeout = timeout;\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * @example\n     * socket.onAny((event, ...args) => {\n     *   console.log(`got ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * @example\n     * socket.prependAny((event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * }\n     *\n     * socket.onAny(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAny(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAny();\n     *\n     * @param listener\n     */\n    offAny(listener) {\n        if (!this._anyListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAny() {\n        return this._anyListeners || [];\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.onAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.prependAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * }\n     *\n     * socket.onAnyOutgoing(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAnyOutgoing(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAnyOutgoing();\n     *\n     * @param [listener] - the catch-all listener (optional)\n     */\n    offAnyOutgoing(listener) {\n        if (!this._anyOutgoingListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyOutgoingListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyOutgoingListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAnyOutgoing() {\n        return this._anyOutgoingListeners || [];\n    }\n    /**\n     * Notify the listeners for each packet sent\n     *\n     * @param packet\n     *\n     * @private\n     */\n    notifyOutgoingListeners(packet) {\n        if (this._anyOutgoingListeners && this._anyOutgoingListeners.length) {\n            const listeners = this._anyOutgoingListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, packet.data);\n            }\n        }\n    }\n}\n", "/**\n * Initialize backoff timer with `opts`.\n *\n * - `min` initial timeout in milliseconds [100]\n * - `max` max timeout [10000]\n * - `jitter` [0]\n * - `factor` [2]\n *\n * @param {Object} opts\n * @api public\n */\nexport function Backoff(opts) {\n    opts = opts || {};\n    this.ms = opts.min || 100;\n    this.max = opts.max || 10000;\n    this.factor = opts.factor || 2;\n    this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;\n    this.attempts = 0;\n}\n/**\n * Return the backoff duration.\n *\n * @return {Number}\n * @api public\n */\nBackoff.prototype.duration = function () {\n    var ms = this.ms * Math.pow(this.factor, this.attempts++);\n    if (this.jitter) {\n        var rand = Math.random();\n        var deviation = Math.floor(rand * this.jitter * ms);\n        ms = (Math.floor(rand * 10) & 1) == 0 ? ms - deviation : ms + deviation;\n    }\n    return Math.min(ms, this.max) | 0;\n};\n/**\n * Reset the number of attempts.\n *\n * @api public\n */\nBackoff.prototype.reset = function () {\n    this.attempts = 0;\n};\n/**\n * Set the minimum duration\n *\n * @api public\n */\nBackoff.prototype.setMin = function (min) {\n    this.ms = min;\n};\n/**\n * Set the maximum duration\n *\n * @api public\n */\nBackoff.prototype.setMax = function (max) {\n    this.max = max;\n};\n/**\n * Set the jitter\n *\n * @api public\n */\nBackoff.prototype.setJitter = function (jitter) {\n    this.jitter = jitter;\n};\n", "import { Socket as Engine, installTimerFunctions, nextTick, } from \"engine.io-client\";\nimport { Socket } from \"./socket.js\";\nimport * as parser from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Backoff } from \"./contrib/backo2.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\nexport class Manager extends Emitter {\n    constructor(uri, opts) {\n        var _a;\n        super();\n        this.nsps = {};\n        this.subs = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = undefined;\n        }\n        opts = opts || {};\n        opts.path = opts.path || \"/socket.io\";\n        this.opts = opts;\n        installTimerFunctions(this, opts);\n        this.reconnection(opts.reconnection !== false);\n        this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);\n        this.reconnectionDelay(opts.reconnectionDelay || 1000);\n        this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);\n        this.randomizationFactor((_a = opts.randomizationFactor) !== null && _a !== void 0 ? _a : 0.5);\n        this.backoff = new Backoff({\n            min: this.reconnectionDelay(),\n            max: this.reconnectionDelayMax(),\n            jitter: this.randomizationFactor(),\n        });\n        this.timeout(null == opts.timeout ? 20000 : opts.timeout);\n        this._readyState = \"closed\";\n        this.uri = uri;\n        const _parser = opts.parser || parser;\n        this.encoder = new _parser.Encoder();\n        this.decoder = new _parser.Decoder();\n        this._autoConnect = opts.autoConnect !== false;\n        if (this._autoConnect)\n            this.open();\n    }\n    reconnection(v) {\n        if (!arguments.length)\n            return this._reconnection;\n        this._reconnection = !!v;\n        return this;\n    }\n    reconnectionAttempts(v) {\n        if (v === undefined)\n            return this._reconnectionAttempts;\n        this._reconnectionAttempts = v;\n        return this;\n    }\n    reconnectionDelay(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelay;\n        this._reconnectionDelay = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMin(v);\n        return this;\n    }\n    randomizationFactor(v) {\n        var _a;\n        if (v === undefined)\n            return this._randomizationFactor;\n        this._randomizationFactor = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setJitter(v);\n        return this;\n    }\n    reconnectionDelayMax(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelayMax;\n        this._reconnectionDelayMax = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMax(v);\n        return this;\n    }\n    timeout(v) {\n        if (!arguments.length)\n            return this._timeout;\n        this._timeout = v;\n        return this;\n    }\n    /**\n     * Starts trying to reconnect if reconnection is enabled and we have not\n     * started reconnecting yet\n     *\n     * @private\n     */\n    maybeReconnectOnOpen() {\n        // Only try to reconnect if it's the first time we're connecting\n        if (!this._reconnecting &&\n            this._reconnection &&\n            this.backoff.attempts === 0) {\n            // keeps reconnection from firing twice for the same reconnection loop\n            this.reconnect();\n        }\n    }\n    /**\n     * Sets the current transport `socket`.\n     *\n     * @param {Function} fn - optional, callback\n     * @return self\n     * @public\n     */\n    open(fn) {\n        if (~this._readyState.indexOf(\"open\"))\n            return this;\n        this.engine = new Engine(this.uri, this.opts);\n        const socket = this.engine;\n        const self = this;\n        this._readyState = \"opening\";\n        this.skipReconnect = false;\n        // emit `open`\n        const openSubDestroy = on(socket, \"open\", function () {\n            self.onopen();\n            fn && fn();\n        });\n        const onError = (err) => {\n            this.cleanup();\n            this._readyState = \"closed\";\n            this.emitReserved(\"error\", err);\n            if (fn) {\n                fn(err);\n            }\n            else {\n                // Only do this if there is no fn to handle the error\n                this.maybeReconnectOnOpen();\n            }\n        };\n        // emit `error`\n        const errorSub = on(socket, \"error\", onError);\n        if (false !== this._timeout) {\n            const timeout = this._timeout;\n            // set timer\n            const timer = this.setTimeoutFn(() => {\n                openSubDestroy();\n                onError(new Error(\"timeout\"));\n                socket.close();\n   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on(this.decoder, \"decoded\", this.ondecoded.bind(this)));\n    }\n    /**\n     * Called upon a ping.\n     *\n     * @private\n     */\n    onping() {\n        this.emitReserved(\"ping\");\n    }\n    /**\n     * Called with data.\n     *\n     * @private\n     */\n    ondata(data) {\n        try {\n            this.decoder.add(data);\n        }\n        catch (e) {\n            this.onclose(\"parse error\", e);\n        }\n    }\n    /**\n     * Called when parser fully decodes a packet.\n     *\n     * @private\n     */\n    ondecoded(packet) {\n        // the nextTick call prevents an exception in a user-provided event listener from triggering a disconnection due to a \"parse error\"\n        nextTick(() => {\n            this.emitReserved(\"packet\", packet);\n        }, this.setTimeoutFn);\n    }\n    /**\n     * Called upon socket error.\n     *\n     * @private\n     */\n    onerror(err) {\n        this.emitReserved(\"error\", err);\n    }\n    /**\n     * Creates a new socket for the given `nsp`.\n     *\n     * @return {Socket}\n     * @public\n     */\n    socket(nsp, opts) {\n        let socket = this.nsps[nsp];\n        if (!socket) {\n            socket = new Socket(this, nsp, opts);\n            this.nsps[nsp] = socket;\n        }\n        else if (this._autoConnect && !socket.active) {\n            socket.connect();\n        }\n        return socket;\n    }\n    /**\n     * Called upon a socket close.\n     *\n     * @param socket\n     * @private\n     */\n    _destroy(socket) {\n        const nsps = Object.keys(this.nsps);\n        for (const nsp of nsps) {\n            const socket = this.nsps[nsp];\n            if (socket.active) {\n                return;\n            }\n        }\n        this._close();\n    }\n    /**\n     * Writes a packet.\n     *\n     * @param packet\n     * @private\n     */\n    _packet(packet) {\n        const encodedPackets = this.encoder.encode(packet);\n        for (let i = 0; i < encodedPackets.length; i++) {\n            this.engine.write(encodedPackets[i], packet.options);\n        }\n    }\n    /**\n     * Clean up transport subscriptions and packet buffer.\n     *\n     * @private\n     */\n    cleanup() {\n        this.subs.forEach((subDestroy) => subDestroy());\n        this.subs.length = 0;\n        this.decoder.destroy();\n    }\n    /**\n     * Close the current socket.\n     *\n     * @private\n     */\n    _close() {\n        this.skipReconnect = true;\n        this._reconnecting = false;\n        this.onclose(\"forced close\");\n        if (this.engine)\n            this.engine.close();\n    }\n    /**\n     * Alias for close()\n     *\n     * @private\n     */\n    disconnect() {\n        return this._close();\n    }\n    /**\n     * Called upon engine close.\n     *\n     * @private\n     */\n    onclose(reason, description) {\n        this.cleanup();\n        this.backoff.reset();\n        this._readyState = \"closed\";\n        this.emitReserved(\"close\", reason, description);\n        if (this._reconnection && !this.skipReconnect) {\n            this.reconnect();\n        }\n    }\n    /**\n     * Attempt a reconnection.\n     *\n     * @private\n     */\n    reconnect() {\n        if (this._reconnecting || this.skipReconnect)\n            return this;\n        const self = this;\n        if (this.backoff.attempts >= this._reconnectionAttempts) {\n            this.backoff.reset();\n            this.emitReserved(\"reconnect_failed\");\n            this._reconnecting = false;\n        }\n        else {\n            const delay = this.backoff.duration();\n            this._reconnecting = true;\n            const timer = this.setTimeoutFn(() => {\n                if (self.skipReconnect)\n                    return;\n                this.emitReserved(\"reconnect_attempt\", self.backoff.attempts);\n                // check again for the case socket closed in above events\n                if (self.skipReconnect)\n                    return;\n                self.open((err) => {\n                    if (err) {\n                        self._reconnecting = false;\n                        self.reconnect();\n                        this.emitReserved(\"reconnect_error\", err);\n                    }\n                    else {\n                        self.onreconnect();\n                    }\n                });\n            }, delay);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n    }\n    /**\n     * Called upon successful reconnect.\n     *\n     * @private\n     */\n    onreconnect() {\n        const attempt = this.backoff.attempts;\n        this._reconnecting = false;\n        this.backoff.reset();\n        this.emitReserved(\"reconnect\", attempt);\n    }\n}\n", "import { url } from \"./url.js\";\nimport { Manager } from \"./manager.js\";\nimport { Socket } from \"./socket.js\";\n/**\n * Managers cache.\n */\nconst cache = {};\nfunction lookup(uri, opts) {\n    if (typeof uri === \"object\") {\n        opts = uri;\n        uri = undefined;\n    }\n    opts = opts || {};\n    const parsed = url(uri, opts.path || \"/socket.io\");\n    const source = parsed.source;\n    const id = parsed.id;\n    const path = parsed.path;\n    const sameNamespace = cache[id] && path in cache[id][\"nsps\"];\n    const newConnection = opts.forceNew ||\n        opts[\"force new connection\"] ||\n        false === opts.multiplex ||\n        sameNamespace;\n    let io;\n    if (newConnection) {\n        io = new Manager(source, opts);\n    }\n    else {\n        if (!cache[id]) {\n            cache[id] = new Manager(source, opts);\n        }\n        io = cache[id];\n    }\n    if (parsed.query && !opts.query) {\n        opts.query = parsed.queryKey;\n    }\n    return io.socket(parsed.path, opts);\n}\n// so that \"lookup\" can be used both as a function (e.g. `io(...)`) and as a\n// namespace (e.g. `io.connect(...)`), for backward compatibility\nObject.assign(lookup, {\n    Manager,\n    Socket,\n    io: lookup,\n    connect: lookup,\n});\n/**\n * Protocol version.\n *\n * @public\n */\nexport { protocol } from \"socket.io-parser\";\n/**\n * Expose constructors for standalone build.\n *\n * @public\n */\nexport { Manager, Socket, lookup as io, lookup as connect, lookup as default, };\n"],
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"ioNamespace", "u", "t", "delay", "factor", "depth", "reason", "lookup", "options", "eMsg", "uibuilder", "uibuilder_module_default", "uibuilder", "UibVar"]
+  "sources": ["src/front-end-module/ui.js", "src/front-end-module/uibuilder.module.js", "node_modules/engine.io-parser/build/esm/commons.js", "node_modules/engine.io-parser/build/esm/encodePacket.browser.js", "node_modules/engine.io-parser/build/esm/contrib/base64-arraybuffer.js", "node_modules/engine.io-parser/build/esm/decodePacket.browser.js", "node_modules/engine.io-parser/build/esm/index.js", "node_modules/@socket.io/component-emitter/index.mjs", "node_modules/engine.io-client/build/esm/globalThis.browser.js", "node_modules/engine.io-client/build/esm/util.js", "node_modules/engine.io-client/build/esm/contrib/parseqs.js", "node_modules/engine.io-client/build/esm/transport.js", "node_modules/engine.io-client/build/esm/contrib/yeast.js", "node_modules/engine.io-client/build/esm/contrib/has-cors.js", "node_modules/engine.io-client/build/esm/transports/xmlhttprequest.browser.js", "node_modules/engine.io-client/build/esm/transports/polling.js", "node_modules/engine.io-client/build/esm/transports/websocket-constructor.browser.js", "node_modules/engine.io-client/build/esm/transports/websocket.js", "node_modules/engine.io-client/build/esm/transports/webtransport.js", "node_modules/engine.io-client/build/esm/transports/index.js", "node_modules/engine.io-client/build/esm/contrib/parseuri.js", "node_modules/engine.io-client/build/esm/socket.js", "node_modules/engine.io-client/build/esm/index.js", "node_modules/socket.io-client/build/esm/url.js", "node_modules/socket.io-parser/build/esm/index.js", "node_modules/socket.io-parser/build/esm/is-binary.js", "node_modules/socket.io-parser/build/esm/binary.js", "node_modules/socket.io-client/build/esm/on.js", "node_modules/socket.io-client/build/esm/socket.js", "node_modules/socket.io-client/build/esm/contrib/backo2.js", "node_modules/socket.io-client/build/esm/manager.js", "node_modules/socket.io-client/build/esm/index.js", "src/components/uib-var.js"],
+  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\n// Namespaces - See https://stackoverflow.com/a/52572048/1309986\n// const NAMESPACES = {\n//     svg: 'http://www.w3.org/2000/svg',\n//     html: 'http://www.w3.org/1999/xhtml',\n//     xml: 'http://www.w3.org/XML/1998/namespace',\n//     xlink: 'http://www.w3.org/1999/xlink',\n//     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n// }\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    //#region ---- Internal Methods ----\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                if (attrib === 'class' && Array.isArray(comp.attributes[attrib])) comp.attributes[attrib].join(' ')\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n    } // --- end of _uiManager ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    //#endregion ---- -------- ----\n    //#region ---- External Methods ----\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {HTMLElement|null} Selected HTML element or null\n     */\n    $(cssSelector) {\n        /** @type {*} Some kind of HTML element */\n        let el = document.querySelector(cssSelector)\n\n        if (!el) {\n            Ui.log(1, 'Uib:$', `No element found for CSS selector ${cssSelector}`)()\n            return null\n        }\n\n        if ( el.nodeName === 'TEMPLATE' ) {\n            el = el.content.firstElementChild\n            if (!el) {\n                Ui.log(0, 'Uib:$', `Template selected for CSS selector ${cssSelector} but it is empty`)()\n                return null\n            }\n        }\n\n        return el\n    }\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {string} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {HTMLElement[]} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$(cssSelector) {\n        return Array.from(document.querySelectorAll(cssSelector))\n    }\n\n    /** Add 1 or several class names to an element\n     * @param {string|string[]} classNames Single or array of classnames\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    addClass(classNames, el) {\n        if (!Array.isArray(classNames)) classNames = [classNames]\n        if (el) el.classList.add(...classNames)\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n                if (attrib.name === 'class') thisOut.classes = Array.from(node.classList)\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    /** Remove All, 1 or more class names from an element\n     * @param {undefined|null|\"\"|string|string[]} classNames Single or array of classnames. If undefined, \"\" or null, remove all classes\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    removeClass(classNames, el) {\n        if (!classNames) {\n            el.removeAttribute('class')\n            return\n        }\n        if (!Array.isArray(classNames)) classNames = [classNames]\n        if (el) el.classList.remove(...classNames)\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += `<div>${msg.payload}</div>`\n        if (ui.content) content += `<div>${ui.content}</div>`\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        console.log(this)\n        this._uiManager(msg)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName) {\n                if (propName === 'classes') propName = 'class'\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    const p = {}\n                    // Nightmare of different object types in a DOM Element!\n                    const cType = prop.constructor.name.toLowerCase()\n                    if (cType === 'namednodemap') {\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                    } else if (!cType.includes('map')) { // Ordinary properties (not a mapped type)\n                        p[propName] = prop\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                    }\n                    if (p.class) p.classes = Array.from(node.classList)\n                    out.push(p)\n                }\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    /** External alias for _uiComposeComponent\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    //#endregion ---- -------- ----\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n", "/* This is the Front-End JavaScript for uibuilder  in HTML Module form\n  It provides a number of global objects that can be used in your own javascript.\n  see the docs folder `./docs/uibuilder.module.md` for details of how to use this fully.\n\n  Please use the default index.js file for your own code and leave this as-is.\n  See Uib._meta for client version string\n\n  Copyright (c) 2022-2024 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n//#region --- Type Defs --- //\n/**\n * A string containing HTML markup\n * @typedef {string} html\n */\n//#endregion --- Type Defs --- //\n\n// We need the Socket.IO & ui libraries & the uib-var component  --- //\n// @ts-ignore - Note: Only works when using esbuild to bundle\nimport Ui from './ui'\nimport io from 'socket.io-client'\nimport UibVar from '../components/uib-var'\n\nconst version = '6.8.0-src'\n\n// TODO Add option to allow log events to be sent back to Node-RED as uib ctrl msgs\n//#region --- Module-level utility functions --- //\n\n// @ts-ignore Detect whether the loaded library is minified or not\nconst isMinified = !(/param/).test(function (param) { }) // eslint-disable-line no-unused-vars\n\n//#region --- print/console - debugging output functions --- //\n\n/** Default log level - Error & Warn */\nlet logLevel = isMinified ? 0 : 1  // When using minified lib, assume production and only log errors otherwise also log warn\n// function changeLogLevel(level) {\n//     logLevel = level\n//     console.trace = logLevel < 4 ? function(){} : console.trace\n//     console.debug = logLevel < 2 ? function(){} : console.debug\n//     if ( logLevel < 1 ) {\n//         console.log = console.group = console.groupEnd =  function(){}\n//     }\n// }\n\n// Experimental\nconst LOG_STYLES = {\n    // 0\n    error: {\n        css: 'background: red; color: black;',\n        txtCss: 'color: red; ',\n        pre: '\u26D4 ',\n        console: 'error',  // or trace\n    },\n    // 1\n    warn: {\n        css: 'background: darkorange; color: black;',\n        txtCss: 'color: darkorange; ',\n        pre: '\u26A0 ',\n        console: 'warn',\n    },\n    // 2\n    info: {\n        css: 'background: aqua; color: black;',\n        txtCss: 'color: aqua;',\n        pre: '\u2757 ',\n        console: 'info',\n    },\n    // 3\n    log: {\n        css: 'background: grey; color: yellow;',\n        txtCss: 'color: grey;',\n        pre: '',\n        console: 'log',\n    },\n    // 4\n    debug: {\n        css: 'background: chartreuse; color: black;',\n        txtCss: 'color: chartreuse;',\n        pre: '',\n        console: 'debug',\n    },\n    // 5\n    trace: {\n        css: 'background: indigo; color: yellow;',\n        txtCss: 'color: hotpink;',\n        pre: '',\n        console: 'log',\n    },\n\n    names: ['error', 'warn', 'info', 'log', 'debug', 'trace'],\n    reset: 'color: inherit;',\n    head: 'font-weight:bold; font-style:italic;',\n    level: 'font-weight:bold; border-radius: 3px; padding: 2px 5px; display:inline-block;',\n}\n/** Custom logging. e.g. log(2, 'here:there', 'jiminy', {fred:'jim'})()\n * @returns {Function} Log function @example log(2, 'here:there', 'jiminy', {fred:'jim'})()\n */\nfunction log() {\n    // Get the args\n    const args = Array.prototype.slice.call(arguments)\n\n    // 1st arg is the log level/type\n    let level = args.shift()\n    let strLevel\n    switch (level) {\n        case 'trace':\n        case 5: {\n            if (logLevel < 5) break\n            level = 5 // make sure level is numeric\n            strLevel = 'trace'\n            break\n        }\n\n        case 'debug':\n        case 4: {\n            if (logLevel < 4) break\n            level = 4\n            strLevel = 'debug'\n            break\n        }\n\n        case 'log':\n        case 3: {\n            if (logLevel < 3) break\n            level = 3\n            strLevel = 'log'\n            break\n        }\n\n        case 'info':\n        case '':\n        case 2: {\n            if (logLevel < 2) break\n            level = 2\n            strLevel = 'info'\n            break\n        }\n\n        case 'warn':\n        case 1: {\n            if (logLevel < 1) break\n            level = 1\n            strLevel = 'warn'\n            break\n        }\n\n        case 'error':\n        case 'err':\n        case 0: {\n            if (logLevel < 0) break\n            level = 0\n            strLevel = 'error'\n            break\n        }\n\n        default: {\n            level = -1\n            break\n        }\n\n    }\n\n    // If set to something unknown, no log output\n    if (strLevel === undefined) return function () { }\n\n    // 2nd arg is a heading that will be colour highlighted\n    const head = args.shift()\n\n    // Bind back to console.log (could use console[strLevel] but some levels ignore some formatting, use console.xxx directly or dedicated fn)\n    return Function.prototype.bind.call(\n        console[LOG_STYLES[strLevel].console],\n        console,\n        `%c${LOG_STYLES[strLevel].pre}${strLevel}%c [${head}]`, `${LOG_STYLES.level} ${LOG_STYLES[strLevel].css}`, `${LOG_STYLES.head} ${LOG_STYLES[strLevel].txtCss}`,\n        ...args\n    )\n}\n//#endregion\n\n/** A hack to dynamically load a remote module and wait until it is loaded\n * @param {string} url The URL of the module to load\n * @returns {object|null} Either the result object or null (if the load fails)\n */\n// function loadModule(url) { // eslint-disable-line no-unused-vars\n//     let done\n\n//     import(url)\n//         .then(res => {\n//             log('debug', '>> then >>', res)()\n//             done = res\n//         })\n//         .catch(err => {\n//             console.error(`[uibuilder:loadModule] Could not load module ${url}`, err)\n//             done = null\n//         })\n\n//     //  eslint-disable-next-line no-empty\n//     while (!done) { } // eslint-disable-line no-unmodified-loop-condition\n\n//     return done\n// }\n\n/** Makes a null or non-object into an object\n * If not null, moves \"thing\" to {payload:thing}\n *\n * @param {*} thing Thing to check\n * @param {string} [property='payload'] property that \"thing\" is moved to if not null and not an object\n * @returns {!object} _\n */\nfunction makeMeAnObject(thing, property) {\n    if (!property) property = 'payload'\n    if (typeof property !== 'string') {\n        log('warn', 'uibuilderfe:makeMeAnObject', `WARNING: property parameter must be a string and not: ${typeof property}`)()\n        property = 'payload'\n    }\n    let out = {}\n    if ( thing !== null && thing.constructor.name === 'Object' ) {\n        out = thing\n    } else if (thing !== null) {\n        out[property] = thing\n    }\n    return out\n} // --- End of make me an object --- //\n\n/** Joins all arguments as a URL string\n * see http://stackoverflow.com/a/28592528/3016654\n * since v1.0.10, fixed potential double // issue\n * arguments {string} URL fragments\n * @returns {string} _\n */\nfunction urlJoin() {\n    const paths = Array.prototype.slice.call(arguments)\n    const url = '/' + paths.map(function (e) {\n        return e.replace(/^\\/|\\/$/g, '')\n    })\n        .filter(function (e) {\n            return e\n        })\n        .join('/')\n    return url.replace('//', '/')\n} // ---- End of urlJoin ---- //\n\n/** Convert JSON to Syntax Highlighted HTML\n * @param {object} json A JSON/JavaScript Object\n * @returns {html} Object reformatted as highlighted HTML\n */\nfunction syntaxHighlight(json) {\n    if (json === undefined) {\n        json = '<span class=\"undefined\">undefined</span>'\n    } else {\n        try {\n            json = JSON.stringify(json, undefined, 4)\n            // json = json.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;') // eslint-disable-line newline-per-chained-call\n            json = json.replace(/(\"(\\\\u[a-zA-Z0-9]{4}|\\\\[^u]|[^\\\\\"])*\"(\\s*:)?|\\b(true|false|null)\\b|-?\\d+(?:\\.\\d*)?(?:[eE][+-]?\\d+)?)/g, function (match) { // eslint-disable-line prefer-named-capture-group\n                let cls = 'number'\n                if ((/^\"/).test(match)) {\n                    if ((/:$/).test(match)) {\n                        cls = 'key'\n                    } else {\n                        cls = 'string'\n                    }\n                } else if ((/true|false/).test(match)) {\n                    cls = 'boolean'\n                } else if ((/null/).test(match)) {\n                    cls = 'null'\n                }\n                return `<span class=\"${cls}\">${match}</span>`\n            })\n        } catch (e) {\n            json = `Syntax Highlight ERROR: ${e.message}`\n        }\n    }\n    return json\n}\n\n/** msg._ui handling functions */\nconst _ui = new Ui(window, log, syntaxHighlight)\n\n//#endregion --- Module-level utility functions --- //\n\n/** Define and export the Uib class - note that an instance of the class is also exported in the wrap-up\n * @typicalname uibuilder\n */\nexport const Uib = class Uib {\n\n    //#region --- Static variables ---\n    static _meta = {\n        version: version,\n        type: 'module',\n        displayName: 'uibuilder',\n    }\n    //#endregion ---- ---- ---- ----\n\n    //#region private class vars\n\n    // How many times has the loaded instance connected to Socket.IO (detect if not a new load?)\n    connectedNum = 0\n    // event listener callbacks by property name\n    // #events = {}\n    // Socket.IO channel names\n    _ioChannels = { control: 'uiBuilderControl', client: 'uiBuilderClient', server: 'uiBuilder' }\n    /** setInterval holder for pings @type {function|undefined} */\n    #pingInterval\n    // onChange event callbacks\n    #propChangeCallbacks = {}\n    // onTopic event callbacks\n    #msgRecvdByTopicCallbacks = {}\n    // Is Vue available?\n    isVue = false\n    // What version? Set in startup if Vue is loaded. Won't always work\n    vueVersion = undefined\n    /** setInterval id holder for Socket.IO checkConnect\n     * @type {number|null}\n     */\n    #timerid = null\n    // Holds the reference ID for the internal msg change event handler so that it can be cancelled\n    #MsgHandler\n    // Placeholder for io.socket - can't make a # var until # fns allowed in all browsers\n    _socket\n    // Placeholder for an observer that watches the whole DOM for changes - can't make a # var until # fns allowed in all browsers\n    _htmlObserver\n    // Has showMsg been turned on?\n    #isShowMsg = false\n    // Has showStatus been turned on?\n    #isShowStatus = false\n    // If true, URL hash changes send msg back to node-red. Controlled by watchUrlHash()\n    #sendUrlHash = false\n    // Externally accessible command functions (NB: Case must match) - remember to update _uibCommand for new commands\n    #extCommands = [\n        'elementExists', 'get', 'getManagedVarList', 'getWatchedVars', 'htmlSend', 'include',\n        'navigate', 'scrollTo', 'set', 'showMsg', 'showStatus', 'uiGet', 'uiWatch', 'watchUrlHash',\n    ]\n\n    /** @type {{[key: string]: string}} Managed uibuilder variables */\n    #managedVars = {}\n\n    // What status variables to show via showStatus()\n    #showStatus = {\n        online: { 'var': 'online', 'label': 'Online?', 'description': 'Is the browser online?', },\n        ioConnected: { 'var': 'ioConnected', 'label': 'Socket.IO connected?', 'description': 'Is Socket.IO connected?', },\n        connectedNum: { 'var': 'connectedNum', 'label': '# reconnections', 'description': 'How many times has Socket.IO had to reconnect since last page load?', },\n\n        clientId: { 'var': 'clientId', 'label': 'Client ID', 'description': 'Static client unique id set in Node-RED. Only changes when browser is restarted.', },\n        tabId: { 'var': 'tabId', 'label': 'Browser tab ID', 'description': 'Static unique id for the browser\\'s current tab', },\n        cookies: { 'var': 'cookies', 'label': 'Cookies', 'description': 'Cookies set in Node-RED', },\n        httpNodeRoot: { 'var': 'httpNodeRoot', 'label': 'httpNodeRoot', 'description': 'From Node-RED\\' settings.js, affects URL\\'s. May be wrong for pages in sub-folders', },\n        pageName: { 'var': 'pageName', 'label': 'Page name', 'description': 'Actual name of this page', },\n\n        ioNamespace: { 'var': 'ioNamespace', 'label': 'SIO namespace', 'description': 'Socket.IO namespace - unique to each uibuilder node instance', },\n        // ioPath: { 'var': 'ioPath', 'label': 'SIO path', 'description': '', }, // no longer needed in the modern client\n        socketError: { 'var': 'socketError', 'label': 'Socket error', 'description': 'If the Socket.IO connection has failed, says why', },\n\n        msgsSent: { 'var': 'msgsSent', 'label': '# msgs sent', 'description': 'How many standard messages have been sent to Node-RED?', },\n        msgsReceived: { 'var': 'msgsReceived', 'label': '# msgs received', 'description': 'How many standard messages have been received from Node-RED?', },\n        msgsSentCtrl: { 'var': 'msgsSentCtrl', 'label': '# control msgs sent', 'description': 'How many control messages have been sent to Node-RED?', },\n        msgsCtrlReceived: { 'var': 'msgsCtrlReceived', 'label': '# control msgs received', 'description': 'How many control messages have been received from Node-RED?', },\n        originator: { 'var': 'originator', 'label': 'Node Originator', 'description': 'If the last msg from Node-RED was from a `uib-sender` node, this will be its node id so that messasges can be returned to it', },\n        topic: { 'var': 'topic', 'label': 'Default topic', 'description': 'Optional default topic to be included in outgoing standard messages', },\n\n        started: { 'var': 'started', 'label': 'Has uibuilder client started?', 'description': 'Whether `uibuilder.start()` ran successfully. This should self-run and should not need to be run manually', },\n        version: { 'var': 'version', 'label': 'uibuilder client version', 'description': 'The version of the loaded uibuilder client library', },\n        serverTimeOffset: { 'var': 'serverTimeOffset', 'label': 'Server time offset (Hrs)', 'description': 'The number of hours difference between the Node-red server and the client', },\n    }\n\n    // Track ui observers (see uiWatch)\n    #uiObservers = {}\n\n    //#endregion\n\n    //#region public class vars\n\n    // TODO Move to proper getters\n    //#region ---- Externally read-only (via .get method) ---- //\n    // version - moved to _meta\n    /** Client ID set by uibuilder on connect */\n    clientId = ''\n    /** The collection of cookies provided by uibuilder */\n    cookies = {}\n    /** Copy of last control msg object received from sever */\n    ctrlMsg = {}\n    /** Is Socket.IO client connected to the server? */\n    ioConnected = false\n    // Is the browser tab containing this page visible or not?\n    isVisible = false\n    // Remember the last page (re)load/navigation type: navigate, reload, back_forward, prerender\n    lastNavType = ''\n    /** Last std msg received from Node-RED */\n    msg = {}\n    /** number of messages sent to server since page load */\n    msgsSent = 0\n    /** number of messages received from server since page load */\n    msgsReceived = 0\n    /** number of control messages sent to server since page load */\n    msgsSentCtrl = 0\n    /** number of control messages received from server since page load */\n    msgsCtrlReceived = 0\n    /** Is the client online or offline? */\n    online = navigator.onLine\n    /** last control msg object sent via uibuilder.send() @since v2.0.0-dev3 */\n    sentCtrlMsg = {}\n    /** last std msg object sent via uibuilder.send() */\n    sentMsg = {}\n    /** placeholder to track time offset from server, see fn socket.on(ioChannels.server ...) */\n    serverTimeOffset = null\n    /** placeholder for a socket error message */\n    socketError = null\n    // tab identifier from session storage\n    tabId = ''\n    // Actual name of current page (set in constructor)\n    pageName = null\n    // Is the DOMPurify library loaded? Updated in start()\n    purify = false\n    // Is the Markdown-IT library loaded? Updated in start()\n    markdown = false\n    // Current URL hash. Initial set is done from start->watchHashChanges via a set to make it watched\n    urlHash = location.hash\n    //#endregion ---- ---- ---- ---- //\n\n    // TODO Move to proper getters/setters\n    //#region ---- Externally Writable (via .set method, read via .get method) ---- //\n    /** Default originator node id - empty string by default\n     * @type {string}\n     */\n    originator = ''\n    /** Default topic - used by send if set and no topic provided\n     * @type {(string|undefined)}\n     */\n    topic = undefined\n    //#endregion ---- ---- ---- ---- //\n\n    //#region ---- These are unlikely to be needed externally: ----\n    autoSendReady = true\n    httpNodeRoot = '' // Node-RED setting (via cookie)\n    ioNamespace = ''\n    ioPath = ''\n    retryFactor = 1.5       // starting delay factor for subsequent reconnect attempts\n    retryMs = 2000          // starting retry ms period for manual socket reconnections workaround\n    storePrefix = 'uib_'    // Prefix for all uib-related localStorage\n    started = false\n    // NOTE: These can only change when a client (re)connects\n    socketOptions = {\n        path: this.ioPath,\n        transports: ['polling', 'websocket'],\n        // Using callback so that they are updated automatically on (re)connect\n        // Only put things in here that will be valid for a websocket connected session\n        auth: (cb) => {\n            cb({ // eslint-disable-line n/no-callback-literal\n                clientVersion: version,\n                clientId: this.clientId,\n                pathName: window.location.pathname,\n                urlParams: Object.fromEntries(new URLSearchParams(location.search)),\n                pageName: this.pageName,\n                tabId: this.tabId,\n                lastNavType: this.lastNavType,\n                connectedNum: ++this.connectedNum,\n                // Used to calculate the diff between the server and client connection timestamps - reported if >1 minute\n                browserConnectTimestamp: (new Date()).toISOString(),\n            })\n        },\n        transportOptions: {\n            // Can only set headers when polling\n            polling: {\n                extraHeaders: {\n                    'x-clientid': `${Uib._meta.displayName}; ${Uib._meta.type}; ${Uib._meta.version}; ${this.clientId}`,\n                }\n            },\n        },\n    }\n    //#endregion -- not external --\n\n    //#endregion --- End of variables ---\n\n    //#region ------- Getters and Setters ------- //\n\n    // Change logging level dynamically (affects both console. and print.)\n    set logLevel(level) { logLevel = level; console.log('%c\u2757 info%c [logLevel]', `${LOG_STYLES.level} ${LOG_STYLES.info.css}`, `${LOG_STYLES.head} ${LOG_STYLES.info.txtCss}`, `Set to ${level} (${LOG_STYLES.names[level]})`) /* changeLogLevel(level)*/ }\n    get logLevel() { return logLevel }\n\n    get meta() { return Uib._meta }\n\n    /** Function to set uibuilder properties to a new value - works on any property except _* or #*\n     * Also triggers any event listeners.\n     * Example: this.set('msg', {topic:'uibuilder', payload:42});\n     * @param {string} prop Any uibuilder property who's name does not start with a _ or #\n     * @param {*} val The set value of the property or a string declaring that a protected property cannot be changed\n     * @param {boolean} [store] If true, the variable is also saved to the browser localStorage if possible\n     * @param {boolean} [autoload] If true & store is true, on load, uib will try to restore the value from the store automatically\n     * @returns {*} Input value\n     */\n    set(prop, val, store = false, autoload = false) {\n        // Check for excluded properties - we don't want people to set these\n        // if (this.#excludedSet.indexOf(prop) !== -1) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:set', `Cannot use set() on protected property \"${prop}\"`)()\n            return `Cannot use set() on protected property \"${prop}\"`\n        }\n\n        // We must add the var to the uibuilder object\n        this[prop] = val\n\n        // Keep track of all managed variables\n        this.#managedVars[prop] = prop\n\n        // If requested, save to store\n        if (store === true) this.setStore(prop, val, autoload)\n\n        log('trace', 'Uib:set', `prop set - prop: ${prop}, val: `, val, ` store: ${store}, autoload: ${autoload}`)()\n\n        // Trigger this prop's event callbacks (listeners which are set by this.onChange)\n        // this.emit(prop, val)\n\n        // trigger an event on the prop name, pass both the name and value to the event details\n        this._dispatchCustomEvent('uibuilder:propertyChanged', { 'prop': prop, 'value': val, 'store': store, 'autoload': autoload })\n\n        return val\n    }\n\n    /** Function to get the value of a uibuilder property\n     * Example: uibuilder.get('msg')\n     * @param {string} prop The name of the property to get as long as it does not start with a _ or #\n     * @returns {*|undefined} The current value of the property\n     */\n    get(prop) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:get', `Cannot use get() on protected property \"${prop}\"`)()\n            return\n        }\n        if (prop === 'version') return Uib._meta.version\n        if (prop === 'msgsCtrl') return this.msgsCtrlReceived\n        if (prop === 'reconnections') return this.connectedNum\n        if (this[prop] === undefined) {\n            log('warn', 'Uib:get', `get() - property \"${prop}\" is undefined`)()\n        }\n        return this[prop]\n    }\n\n    /** Write to localStorage if possible. console error output if can't write\n     * Also uses this.storePrefix\n     * @example\n     *   uibuilder.setStore('fred', 42)\n     *   console.log(uibuilder.getStore('fred'))\n     * @param {string} id localStorage var name to be used (prefixed with 'uib_')\n     * @param {*} value value to write to localstore\n     * @param {boolean} [autoload] If true, on load, uib will try to restore the value from the store\n     * @returns {boolean} True if succeeded else false\n     */\n    setStore(id, value, autoload = false) {\n        let autoVars = {}\n        if (autoload === true) {\n            try {\n                autoVars = this.getStore('_uibAutoloadVars') || {}\n            } catch (e) {}\n        }\n        if (typeof value === 'object') {\n            try {\n                value = JSON.stringify(value)\n            } catch (e) {\n                log('error', 'Uib:setStore', 'Cannot stringify object, not storing. ', e)()\n                return false\n            }\n        }\n        try {\n            localStorage.setItem(this.storePrefix + id, value)\n            if (autoload) {\n                autoVars[id] = id\n                try {\n                    localStorage.setItem(this.storePrefix + '_uibAutoloadVars', JSON.stringify(autoVars))\n                } catch (e) {\n                    log('error', 'Uib:setStore', 'Cannot save autoload list. ', e)()\n                }\n            }\n            this._dispatchCustomEvent('uibuilder:propertyStored', { 'prop': id, 'value': value, 'autoload': autoload })\n            return true\n        } catch (e) {\n            log('error', 'Uib:setStore', 'Cannot write to localStorage. ', e)()\n            return false\n        }\n    } // --- end of setStore --- //\n\n    /** Attempt to get and re-hydrate a key value from localStorage\n     * Note that all uib storage is automatically prefixed using this.storePrefix\n     * @param {*} id The key of the value to attempt to retrieve\n     * @returns {*|null|undefined} The re-hydrated value of the key or null if key not found, undefined on error\n     */\n    getStore(id) {\n        try {\n            // @ts-ignore\n            return JSON.parse(localStorage.getItem(this.storePrefix + id))\n        } catch (e) { }\n        try {\n            return localStorage.getItem(this.storePrefix + id)\n        } catch (e) {\n            return undefined\n        }\n    }\n\n    /** Remove a given id from the uib keys in localStorage\n     * @param {*} id The key to remove\n     */\n    removeStore(id) {\n        try {\n            localStorage.removeItem(this.storePrefix + id)\n        } catch (e) { }\n    }\n\n    /** Returns a list of uibuilder properties (variables) that can be watched with onChange\n     * @returns {{[key: string]: string}} List of uibuilder managed variables\n     */\n    getManagedVarList() {\n        return this.#managedVars\n    }\n\n    getWatchedVars() {\n        return Object.keys(this.#propChangeCallbacks)\n    }\n\n    //#endregion ------- -------- ------- //\n\n    //#region ------- Our own event handling system ---------- //\n\n    // TODO Add option to send event details back to Node-RED as uib ctrl msg\n    /** Standard fn to create a custom event with details & dispatch it\n     * @param {string} title The event name\n     * @param {*} details Any details to pass to event output\n     */\n    _dispatchCustomEvent(title, details) {\n        const event = new CustomEvent(title, { detail: details })\n        document.dispatchEvent(event)\n    }\n\n    // See the this.#propChangeCallbacks & msgRecvdByTopicCallbacks private vars\n\n    /** Register on-change event listeners for uibuilder tracked properties\n     * Make it possible to register a function that will be run when the property changes.\n     * Note that you can create listeners for non-existant properties\n     * @example: uibuilder.onChange('msg', (msg) => { console.log('uibuilder.msg changed! It is now: ', msg) })\n     *\n     * @param {string} prop The property of uibuilder that we want to monitor\n     * @param {Function} callback The function that will run when the property changes, parameter is the new value of the property after change\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelChange if you need to remove a listener\n     */\n    onChange(prop, callback) {\n        // Note: Property does not have to exist yet\n\n        // console.debug(`[Uib:onchange] pushing new callback (event listener) for property: ${prop}`)\n\n        // Create a new array or add to the array of callback functions for the property in the events object\n        // if (this.#events[prop]) {\n        //     this.#events[prop].push(callback)\n        // } else {\n        //     this.#events[prop] = [callback]\n        // }\n\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#propChangeCallbacks[prop]) this.#propChangeCallbacks[prop] = { _nextRef: 1 }\n        else this.#propChangeCallbacks[prop]._nextRef++\n\n        const nextCbRef = this.#propChangeCallbacks[prop]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const propChangeCallback = this.#propChangeCallbacks[prop][nextCbRef] = function propChangeCallback(e) {\n            // If the prop name matches the 1st arg in the onChange fn:\n            if (prop === e.detail.prop) {\n                const value = e.detail.value\n                // console.warn('[Uib:onChange:evt] uibuilder:propertyChanged. ', e.detail)\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(value, value)\n            }\n        }\n\n        document.addEventListener('uibuilder:propertyChanged', propChangeCallback)\n\n        return nextCbRef\n    } // ---- End of onChange() ---- //\n\n    cancelChange(prop, cbRef) {\n        document.removeEventListener('uibuilder:propertyChanged', this.#propChangeCallbacks[prop][cbRef])\n        delete this.#propChangeCallbacks[prop][cbRef]\n        // this.#propChangeCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Register a change callback for a specific msg.topic\n     * Similar to onChange but more convenient if needing to differentiate by msg.topic.\n     * @example: let otRef = uibuilder.onTopic('mytopic', function(){ console.log('Received a msg with msg.topic=`mytopic`. msg: ', this) })\n     * To cancel a change listener: uibuilder.cancelTopic('mytopic', otRef)\n     *\n     * @param {string} topic The msg.topic we want to listen for\n     * @param {Function} callback The function that will run when an appropriate msg is received. `this` inside the callback as well as the cb's single argument is the received msg.\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelTopic if you need to remove a listener\n     */\n    onTopic(topic, callback) {\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#msgRecvdByTopicCallbacks[topic]) this.#msgRecvdByTopicCallbacks[topic] = { _nextRef: 1 }\n        else this.#msgRecvdByTopicCallbacks[topic]._nextRef++\n\n        const nextCbRef = this.#msgRecvdByTopicCallbacks[topic]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const msgRecvdEvtCallback = this.#msgRecvdByTopicCallbacks[topic][nextCbRef] = function msgRecvdEvtCallback(e) {\n            const msg = e.detail\n            // console.log('[Uib:onTopic:evt] uibuilder:stdMsgReceived where topic matches. ', e.detail)\n            if (msg.topic === topic) {\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(msg, msg)\n            }\n        }\n\n        document.addEventListener('uibuilder:stdMsgReceived', msgRecvdEvtCallback)\n\n        return nextCbRef\n    }\n\n    cancelTopic(topic, cbRef) {\n        document.removeEventListener('uibuilder:stdMsgReceived', this.#msgRecvdByTopicCallbacks[topic][cbRef])\n        delete this.#msgRecvdByTopicCallbacks[topic][cbRef]\n        // this.#msgRecvdCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Trigger event listener for a given property\n     * Called when uibuilder.set is used\n     *\n     * @param {*} prop The property for which to run the callback functions\n     * arguments: Additional arguments contain the value to pass to the event callback (e.g. newValue)\n     */\n    // emit(prop) {\n    //     var evt = this.#events[prop]\n    //     if (!evt) {\n    //         return\n    //     }\n    //     var args = Array.prototype.slice.call(arguments, 1)\n    //     for (var i = 0; i < evt.length; i++) {\n    //         evt[i].apply(this, args)\n    //     }\n    //     log('trace', 'Uib:emit', `${evt.length} listeners run for prop ${prop} `)()\n    // }\n\n    /** Forcibly removes all event listeners from the events array\n     * Use if you need to re-initialise the environment\n     */\n    // clearEventListeners() {\n    //     this.#events = []\n    // } // ---- End of clearEventListeners() ---- //\n\n    /** Clear a single property event listeners\n     * @param {string} prop The property of uibuilder for which we want to clear the event listener\n     */\n    // clearListener(prop) {\n    //     if (this.#events[prop]) delete this.#events[prop]\n    // }\n\n    //#endregion ---------- End of event handling system ---------- //\n\n    //#region ------- General Utility Functions -------- //\n\n    /** Check supplied msg from server for a timestamp - if received, work out & store difference to browser time\n     * @param {object} receivedMsg A message object recieved from Node-RED\n     * @returns {void} Updates self.serverTimeOffset if different to previous value\n     */\n    _checkTimestamp(receivedMsg) {\n        if (Object.prototype.hasOwnProperty.call(receivedMsg, 'serverTimestamp')) {\n            const serverTimestamp = new Date(receivedMsg.serverTimestamp)\n            // @ts-ignore\n            const offset = Math.round(((new Date()) - serverTimestamp) / 3600000) // in ms /3.6m to get hours\n            if (offset !== this.serverTimeOffset) {\n                log('trace', `Uib:checkTimestamp:${this._ioChannels.server} (server)`, `Offset changed to: ${offset} from: ${this.serverTimeOffset}`)()\n                this.set('serverTimeOffset', offset)\n            }\n        }\n    }\n\n    /** Set the default originator. Set to '' to ignore. Used with uib-sender.\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    setOriginator(originator = '') {\n        this.set('originator', originator)\n    } // ---- End of setOriginator ---- //\n\n    /** HTTP Ping/Keep-alive - makes a call back to uibuilder's ExpressJS server and receives a 204 response\n     * Can be used to keep sessions alive.\n     * @example\n     *   uibuilder.setPing(2000) // repeat every 2 sec. Re-issue with ping(0) to turn off repeat.\n     *   uibuilder.onChange('ping', function(data) {\n     *      console.log('pinger', data)\n     *   })\n     * @param {number} ms Repeat interval in ms\n     */\n    setPing(ms = 0) {\n        const oReq = new XMLHttpRequest()\n        oReq.addEventListener('load', () => {\n            const headers = (oReq.getAllResponseHeaders()).split('\\r\\n')\n            const elapsedTime = Number(new Date()) - Number((oReq.responseURL.split('='))[1])\n            this.set('ping', {\n                success: !!((oReq.status === 201) || (oReq.status === 204)), // true if one of the listed codes else false\n                status: oReq.status,\n                headers: headers,\n                url: oReq.responseURL,\n                elapsedTime: elapsedTime,\n            })\n        })\n\n        if (this.#pingInterval) {\n            clearInterval(this.#pingInterval)\n            this.#pingInterval = undefined\n        }\n\n        oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n        oReq.send()\n\n        if (ms > 0) {\n            this.#pingInterval = setInterval(() => {\n                oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n                oReq.send()\n            }, ms)\n        }\n    } // ---- End of ping ---- //\n\n    log() {\n        log(...arguments)()\n    }\n\n    /** Convert JSON to Syntax Highlighted HTML\n     * @param {object} json A JSON/JavaScript Object\n     * @returns {html} Object reformatted as highlighted HTML\n     */\n    syntaxHighlight(json) {\n        return syntaxHighlight(json)\n    } // --- End of syntaxHighlight --- //\n\n    /** Copies a uibuilder variable to the browser clipboard\n     * @param {string} varToCopy The name of the uibuilder variable to copy to the clipboard\n     */\n    copyToClipboard(varToCopy) {\n        let data = ''\n        try {\n            data = JSON.stringify(this.get(varToCopy))\n        } catch (e) {\n            log('error', 'copyToClipboard', `Could not copy \"${varToCopy}\" to clipboard.`, e.message)()\n        }\n        navigator.clipboard.writeText(data)\n    } // --- End of copyToClipboard --- //\n\n    /** DEPRECATED FOR NOW - wasn't working properly.\n     * Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.\n     * Requires IntersectionObserver (available to all mainstream browsers from early 2019)\n     * Automatically sends a msg back to Node-RED.\n     * Requires the element to already exist.\n     * @returns {false} False if not visible\n     */\n    elementIsVisible() {\n        const info = 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'\n        log('error', 'uib:elementIsVisible', info)()\n        this.send({ payload: 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex' })\n        return false\n    } // --- End of elementIsVisible --- //\n\n    /** Does the chosen CSS Selector currently exist?\n     * Automatically sends a msg back to Node-RED unless turned off.\n     * @param {string} cssSelector Required. CSS Selector to examine for visibility\n     * @param {boolean} [msg] Optional, default=true. If true also sends a message back to Node-RED\n     * @returns {boolean} True if the element exists\n     */\n    elementExists(cssSelector, msg = true) {\n        const el = document.querySelector(cssSelector)\n\n        let exists = false\n        if (el !== null) exists = true\n\n        if (msg === true) {\n            this.send({\n                payload: exists,\n                info: `Element \"${cssSelector}\" ${exists ? 'exists' : 'does not exist'}`\n            })\n        }\n\n        return exists\n    } // --- End of elementExists --- //\n\n    /** Only keep the URL Hash & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return '#' + url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Set up an event listener to watch for hash changes\n     * and set the watchable urlHash variable\n     */\n    _watchHashChanges() {\n        this.set('urlHash', location.hash)\n        window.addEventListener('hashchange', (event) => {\n            this.set('urlHash', location.hash)\n            if (this.#sendUrlHash === true) {\n                this.send({ topic: 'hashChange', payload: location.hash, newHash: this.keepHashFromUrl(event.newURL), oldHash: this.keepHashFromUrl(event.oldURL) })\n            }\n        })\n    }\n\n    /** Returns true/false or a default value for truthy/falsy and other values\n     * @param {string|number|boolean|*} val The value to test\n     * @param {any} deflt Default value to use if the value is not truthy/falsy\n     * @returns {boolean|any} The truth! Or the default\n     */\n    truthy(val, deflt) {\n        let ret\n        if (['on', 'On', 'ON', 'true', 'True', 'TRUE', '1', true, 1].includes(val)) ret = true\n        else if (['off', 'Off', 'OFF', 'false', 'False', 'FALSE', '0', false, 0].includes(val)) ret = false\n        else ret = deflt\n        return ret\n    }\n\n    /** Turn on/off/toggle sending URL hash changes back to Node-RED\n     * @param {string|number|boolean|undefined} [toggle] Optional on/off/etc\n     * @returns {boolean} True if we will send a msg to Node-RED on a hash change\n     */\n    watchUrlHash(toggle) {\n        this.#sendUrlHash = this.truthy(toggle, this.#sendUrlHash !== true)\n        return this.#sendUrlHash\n    }\n\n    /** Navigate to a new page or a new route (hash)\n     * @param {string} url URL to navigate to. Can be absolute or relative (to current page) or just a hash for a route change\n     * @returns {Location} The new window.location string\n     */\n    navigate(url) {\n        if (url) window.location.href = url\n        return window.location\n    }\n\n    /** Format a number using the INTL standard library - compatible with uib-var filter function\n     * @param {number} value Number to format\n     * @param {number} decimalPlaces Number of decimal places to include. Default=no default\n     * @param {string} intl standard locale spec, e.g. \"ja-JP\" or \"en-GB\". Default=navigator.language\n     * @param {object} opts INTL library options object. Optional\n     * @returns {string} formatted number\n     * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/toLocaleString\n     */\n    formatNumber(value, decimalPlaces, intl, opts) {\n        if (isNaN(value)) {\n            log('error', 'formatNumber', `Value must be a number. Value type: \"${typeof value}\"`)()\n            return 'NaN'\n        }\n        if (!opts) opts = {}\n        if (!intl) intl = navigator.language ? navigator.language : 'en-GB'\n        if (decimalPlaces) {\n            opts.minimumFractionDigits = decimalPlaces\n            opts.maximumFractionDigits = decimalPlaces\n        }\n        let out\n        try {\n            out = Number(value).toLocaleString(intl, opts)\n        } catch (e) {\n            log('error', 'formatNumber', `${e.message}. value=${value}, dp=${decimalPlaces}, intl=\"${intl}\", opts=${JSON.stringify(opts)}`)()\n            return 'NaN'\n        }\n        return out\n    }\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- UI handlers --------- //\n\n    //#region -- Direct to _ui --\n    // ! NOTE: Direct assignments change the target `this` to here. Use with caution\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {HTMLElement|null} Selected HTML element or null\n     */\n    $ = _ui.$\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {string} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {HTMLElement[]} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$ = _ui.$$\n\n    /** Reference to the full ui library */\n    $ui = _ui\n\n    /** Add 1 or several class names to an element\n     * @param {string|string[]} classNames Single or array of classnames\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    addClass = _ui.addClass\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        return _ui.convertMarkdown\n    }\n\n    /** ASYNC: Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     */\n    async include(url, uiOptions) {\n        await _ui.include(url, uiOptions)\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        _ui.loadScriptSrc(url)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        _ui.loadStyleSrc(url)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        _ui.loadScriptTxt(textFn)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        _ui.loadStyleTxt(textFn)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        _ui.loadui(url)\n    }\n\n    /** Remove All, 1 or more class names from an element\n     * @param {undefined|null|\"\"|string|string[]} classNames Single or array of classnames. If undefined, \"\" or null, remove all classes\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    removeClass = _ui.removeClass\n\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        _ui.replaceSlot(el, component)\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        _ui.replaceSlotMarkdown(el, component)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        return _ui.sanitiseHTML(html)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) {\n        _ui.showDialog(type, ui, msg)\n    }\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        _ui.ui(json)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        return _ui.uiGet(cssSelector, propName)\n    }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} component Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, component) {\n        _ui.uiEnhanceElement(el, component)\n    }\n\n    //#endregion -- direct to _ui --\n\n    /** * Show/hide a display card on the end of the visible HTML that will dynamically display the last incoming msg from Node-RED\n     * The card has the id `uib_last_msg`. Updates are done from a listener set up in the start function.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showMsg(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowMsg\n        this.#isShowMsg = showHide\n        let slot = 'Waiting for a message from Node-RED'\n\n        if (this.msg && Object.keys(this.msg).length > 0) {\n            slot = this.syntaxHighlight(this.msg)\n        }\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_last_msg_wrap',\n                ],\n            })\n        } else {\n            _ui._uiReplace({\n                components: [\n                    {\n                        type: 'div',\n                        id: 'uib_last_msg_wrap',\n                        parent: parent,\n                        attributes: {\n                            title: 'Last message from Node-RED',\n                        },\n                        components: [\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.copyToClipboard(\"msg\")',\n                                    class: 'compact',\n                                    style: 'right:3em;',\n                                },\n                                slot: '\uD83D\uDCCB',\n                            },\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.showMsg()',\n                                    class: 'compact',\n                                    style: 'right:.5em;',\n                                },\n                                slot: '\u26D4',\n                            },\n                            {\n                                type: 'pre',\n                                id: 'uib_last_msg',\n                                // parent: 'uib_last_msg_wrap',\n                                attributes: {\n                                    class: 'syntax-highlight',\n                                },\n                                slot: slot,\n                            },\n                        ],\n                    },\n                ],\n            })\n        }\n\n        return showHide\n    }\n\n    /** Show a browser notification if possible.\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * @example uibuilder.notify( 'My simple message to the user' )\n     * @example uibuilder.notify( {topic: 'My Title', payload: 'My simple message to the user'} )\n     * @example uibuilder.notify( {title: 'My Title', body: 'My simple message to the user'} )\n     * @example // If config.return = true, a promise is returned.\n     * // The resolved promise is only returned if the notification is clicked by the user.\n     * // Can be used to send the response back to Node-RED\n     * uibuilder.notify(notifyConfig).then( res => uibuilder.eventSend(res) )\n     * @ref https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config data or simple message string\n     * @returns {Promise<Event>|null} A promise that resolves to the click event or null\n     */\n    notify(config) {\n        if (config.return) return _ui.notification(config)\n\n        _ui.notification(config)\n            .then( res => { // eslint-disable-line promise/always-return\n                log('info', 'Uib:notification', 'Notification completed event', res)()\n                // if (config.return) return res\n            })\n            .catch( err => {\n                log('error', 'Uib:notification', 'Notification error event', err)()\n            })\n        return null\n    }\n\n    /** Scroll the page\n     * https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollIntoView\n     * @param {string} [cssSelector] Optional. If not set, scrolls to top of page.\n     * @param {{block:(string|undefined),inline:(string|undefined),behavior:(string|undefined)}} [opts] Optional. DOM scrollIntoView options\n     * @returns {boolean} True if element was found, false otherwise\n     */\n    scrollTo(cssSelector, opts) {\n        // @ts-ignore\n        if (!opts) opts = {}\n        if (!cssSelector || cssSelector === 'top'  || cssSelector === 'start') cssSelector = 'body'\n        else if (cssSelector === 'bottom' || cssSelector === 'end') {\n            cssSelector = 'body'\n            opts.block = 'end'\n        }\n        const el = this.$(cssSelector)\n        if (el) {\n            el.scrollIntoView(opts)\n            return true\n        }\n        return false\n    }\n\n    /** Show/hide a display card on the end of the visible HTML that will dynamically display the current status of the uibuilder client\n     * The card has the id `uib_status`.\n     * The display is updated by an event listener created in the class constructor.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showStatus(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowStatus\n        this.#isShowStatus = showHide\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_status',\n                ],\n            })\n            return showHide\n        }\n\n        const root = {\n            components: [\n                {\n                    type: 'div',\n                    id: 'uib_status',\n                    parent: parent,\n                    attributes: {\n                        title: 'Current status of the uibuilder client',\n                        class: 'text-smaller',\n                    },\n                    components: [\n                        {\n                            'type': 'table',\n                            'components': [\n                                {\n                                    'type': 'tbody',\n                                    'components': []\n                                }\n                            ]\n                        }\n                    ]\n                }\n            ]\n        }\n        const details = root.components[0].components[0].components[0].components\n\n        Object.values(this.#showStatus).forEach( entry => {\n            details.push({\n                'type': 'tr',\n                'attributes': {\n                    title: entry.description,\n                },\n                'components': [\n                    {\n                        'type': 'th',\n                        'slot': entry.label,\n                    },\n                    {\n                        'type': 'td',\n                        'attributes': {\n                            'data-varType': entry.var,\n                        },\n                        'slot': entry.var === 'version' ? Uib._meta.version : JSON.stringify(this[entry.var]),\n                    }\n                ],\n            })\n        })\n\n        _ui._uiReplace(root)\n\n        return showHide\n    }\n\n    /** Use the Mutation Observer browser API to watch for changes to a single element on the page.\n     * OMG! It is sooo hard to turn the data into something that successfully serialises so it can be sent back to Node-RED!\n     * NB: Each cssSelector creates a unique watcher. Sending the same selector overwrites the previous one.\n     * @param {string} cssSelector A CSS Selector that selects the element to watch for changes\n     * @param {boolean|\"toggle\"} [startStop] true=start watching the DOM, false=stop. Default='toggle'\n     * @param {boolean} [send] true=Send changes to Node-RED, false=Don't send. Default=true\n     * @param {boolean} [showLog] true=Output changes to log, false=stop. Default=true. Log level is 2 (Info)\n     * @returns {boolean} True if the watch is on, false otherwise\n     */\n    uiWatch(cssSelector, startStop = 'toggle', send = true, showLog = true) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.querySelector(cssSelector)\n        if (!targetNode) {\n            log('warn', 'uibuilder.module.js:uiWatch', `CSS Selector '${cssSelector}' not found.`)()\n            return false\n        }\n\n        if (startStop === 'toggle' || startStop === undefined || startStop === null) {\n            if (this.#uiObservers[cssSelector]) startStop = false\n            else startStop = true\n        }\n\n        // Need a ref to the Uib this\n        const that = this\n\n        if (startStop === true) {\n            // Create an observer instance\n            this.#uiObservers[cssSelector] = new MutationObserver( function( mutationList /* , observer */ ) {\n                const out = []\n\n                mutationList.forEach( mu => {\n                    // console.log({ mu })\n                    const oMu = {\n                        type: mu.type,\n                        oldValue: mu.oldValue !== null ? mu.oldValue : undefined,\n                    }\n\n                    if (mu.addedNodes.length > 0) {\n                        oMu.addedNodes = []\n                        mu.addedNodes.forEach( (an, i) => {\n                            oMu.addedNodes.push(_ui.nodeGet(mu.addedNodes[i]))\n                        })\n                    }\n\n                    if (mu.removedNodes.length > 0) {\n                        oMu.removedNodes = []\n                        mu.removedNodes.forEach( (an, i) => {\n                            oMu.removedNodes.push(_ui.nodeGet(mu.removedNodes[i]))\n                        })\n                    }\n\n                    if ( mu.type === 'attributes' ) {\n                        oMu.attributeName = mu.attributeName\n                        // @ts-ignore\n                        oMu.newValue = mu.target.attributes[mu.attributeName].value\n                    }\n\n                    out.push(oMu)\n                })\n\n                // Custom event\n                that._dispatchCustomEvent('uibuilder:domChange', out)\n                // Send a msg back to node-red\n                if (send === true) {\n                    that.send({\n                        _ui: {\n                            cssSelector: cssSelector,\n                            uiChanges: out\n                        },\n                        topic: that.topic || `DOM Changes for '${cssSelector}'`,\n                    })\n                }\n                // Log to info\n                if (showLog === true) {\n                    log('info', 'uibuilder.module.js:uiWatch', `DOM Changes for '${cssSelector}'`, { uiChanges: out }, { mutationList })()\n                }\n            } )\n\n            // Start observing the target node for configured mutations\n            this.#uiObservers[cssSelector].observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:uiWatch', `Started Watching DOM changes for '${cssSelector}'`)()\n        } else {\n            this.#uiObservers[cssSelector].disconnect()\n            delete this.#uiObservers[cssSelector]\n            log('trace', 'uibuilder.module.js:uiWatch', `Stopped Watching DOM changes for '${cssSelector}'`)()\n        }\n\n        return startStop\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- HTML cache and DOM watch --------- //\n\n    /** Clear the saved DOM from localStorage */\n    clearHtmlCache() {\n        this.removeStore('htmlCache')\n        log('trace', 'uibuilder.module.js:clearHtmlCache', 'HTML cache cleared')()\n    }\n\n    /** Restore the complete DOM (the whole web page) from browser localStorage if available */\n    restoreHtmlFromCache() {\n        // Is the html cached? If so, restore it\n        const htmlCache = this.getStore('htmlCache')\n        if (htmlCache) {\n            const targetNode = document.getElementsByTagName('html')[0]\n            // Restore the entire HTML\n            targetNode.innerHTML = htmlCache\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'Restored HTML from cache')()\n        } else {\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'No cache to restore')()\n        }\n    }\n\n    /** Save the current DOM state to browser localStorage.\n     * localStorage is persistent and so can be recovered even after a browser restart.\n     */\n    saveHtmlCache() {\n        // Save the updated entire HTML in localStorage\n        this.setStore('htmlCache', document.documentElement.innerHTML)\n    }\n\n    /** Use the Mutation Observer browser API to watch for and save changes to the HTML\n     * Once the observer is created, it will be reused.\n     * Sending true or undefined will turn on the observer, false turns it off.\n     * saveHtmlCache is called whenever anything changes in the dom. This allows\n     * users to call restoreHtmlFromCache() on page load if desired to completely reload\n     * to the last saved state.\n     * @param {boolean} startStop true=start watching the DOM, false=stop\n     */\n    watchDom(startStop) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.documentElement\n\n        // Need a ref to the Uib this\n        const that = this\n\n        // Create an observer instance\n        if (!this._htmlObserver) {\n            this._htmlObserver = new MutationObserver( function(/* mutationList, observer */) {\n                // We don't need to know the details - so kill off any outstanding mutation records\n                this.takeRecords()\n                // Save the updated entire HTML in localStorage\n                that.saveHtmlCache()\n            } )\n        }\n\n        if (startStop === true || startStop === undefined) {\n            // Start observing the target node for configured mutations\n            this._htmlObserver.observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:watchDom', 'Started Watching and saving DOM changes')()\n        } else {\n            this._htmlObserver.disconnect()\n            log('trace', 'uibuilder.module.js:watchDom', 'Stopped Watching and saving DOM changes')()\n        }\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- Message Handling (To/From Node-RED) -------- //\n\n    /** Handles original control msgs (not to be confused with \"new\" msg._uib controls)\n     * @param {*} receivedCtrlMsg The msg received on the socket.io control channel\n     */\n    _ctrlMsgFromServer(receivedCtrlMsg) {\n\n        // Make sure that msg is an object & not null\n        if (receivedCtrlMsg === null) {\n            receivedCtrlMsg = {}\n        } else if (typeof receivedCtrlMsg !== 'object') {\n            const msg = {}\n            msg['uibuilderCtrl:' + this._ioChannels.control] = receivedCtrlMsg\n            receivedCtrlMsg = msg\n        }\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedCtrlMsg)\n\n        this.set('ctrlMsg', receivedCtrlMsg)\n        this.set('msgsCtrlReceived', ++this.msgsCtrlReceived)\n\n        log('trace', 'Uib:ioSetup:_ctrlMsgFromServer', `Channel '${this._ioChannels.control}'. Received control msg #${this.msgsCtrlReceived}`, receivedCtrlMsg)()\n\n        /** Process control msg types */\n        switch (receivedCtrlMsg.uibuilderCtrl) {\n            // Node-RED is shutting down\n            case 'shutdown': {\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, '\u274C Received \"shutdown\" from server')()\n                this.set('serverShutdown', undefined)\n                break\n            }\n\n            /** We are connected to the server - 1st msg from server */\n            case 'client connect': {\n                log('trace', `Uib:ioSetup:${this._ioChannels.control}`, 'Received \"client connect\" from server')()\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, `\u2705 Server connected. Version: ${receivedCtrlMsg.version}\\nServer time: ${receivedCtrlMsg.serverTimestamp}, Sever time offset: ${this.serverTimeOffset} hours`)()\n\n                if ( !Uib._meta.version.startsWith(receivedCtrlMsg.version.split('-')[0]) ) {\n                    log('warn', `Uib:ioSetup:${this._ioChannels.control}`, `Server version (${receivedCtrlMsg.version}) not the same as the client version (${Uib._meta.version})`)()\n                }\n\n                if (this.autoSendReady === true) { // eslint-disable-line no-lonely-if\n                    log('trace', `Uib:ioSetup:${this._ioChannels.control}/client connect`, 'Auto-sending ready-for-content/replay msg to server')\n                    // @since 0.4.8c Add cacheControl property for use with node-red-contrib-infocache\n                    // @since 6.1.0 Don't bother, we use the \"client connect\" msg\n                    // this._send({\n                    //     'uibuilderCtrl': 'ready for content',\n                    //     'cacheControl': 'REPLAY',\n                    // }, this._ioChannels.control)\n                }\n\n                break\n            }\n\n            default: {\n                log('trace', `uibuilderfe:ioSetup:${this._ioChannels.control}`, `Received ${receivedCtrlMsg.uibuilderCtrl} from server`)\n                // Anything else to do for other control msgs?\n            }\n        } // ---- End of process control msg types ---- //\n    } // -- End of websocket receive CONTROL msg from Node-RED -- //\n\n    /** Do we want to process something? Check pageName, clientId, tabId. Defaults to yes.\n     * @param {*} obj Either a msg._ui or msg._uib object to check\n     * @returns {boolean} True if we should process the inbound _ui/_uib msg, false if not.\n     */\n    _forThis(obj) {\n        let r = true\n\n        // Is this msg for this pageName?\n        if (obj.pageName && obj.pageName !== this.pageName) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this page')()\n            r = false\n        }\n\n        // Is this msg for this clientId?\n        if (obj.clientId && obj.clientId !== this.clientId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this clientId')()\n            r = false\n        }\n\n        // Is this msg for this tabId?\n        if (obj.tabId && obj.tabId !== this.tabId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this tabId')()\n            r = false\n        }\n\n        return r\n    }\n\n    // Handle received messages - Process some msgs internally, emit specific events on document that make it easy for coders to use\n    _msgRcvdEvents(msg) {\n        // Message received\n        this._dispatchCustomEvent('uibuilder:stdMsgReceived', msg)\n\n        // Topic\n        if ( msg.topic ) this._dispatchCustomEvent(`uibuilder:msg:topic:${msg.topic}`, msg)\n\n        // Handle msg._uib special requests\n        if (msg._uib) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._uib)) return\n\n            /** Process a client reload request from Node-RED - as the page is reloaded, everything else is ignored\n             * Note that msg._ui.reload is also actioned via the _ui processing below */\n            if (msg._uib.reload === true) {\n                log('trace', 'Uib:_msgRcvdEvents:_uib:reload', 'reloading')()\n                location.reload()\n                return\n            }\n\n            // Process msg._uib.command messages - allows Node-RED to run uibuilder FE functions\n            if (msg._uib.command) {\n                this._uibCommand(msg)\n                return\n            }\n\n            // Better to request via msg._ui - these are for backwards compatibility\n            if ( msg._uib.componentRef === 'globalNotification' ) {\n                _ui.showDialog('notify', msg._uib.options, msg)\n            }\n            if ( msg._uib.componentRef === 'globalAlert' ) {\n                _ui.showDialog('alert', msg._uib.options, msg)\n            }\n        }\n\n        // Handle msg._ui requests\n        if ( msg._ui ) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._ui)) return\n\n            log('trace', 'Uib:_msgRcvdEvents:_ui', 'Calling _uiManager')()\n            this._dispatchCustomEvent('uibuilder:msg:_ui', msg)\n            _ui._uiManager(msg)\n        }\n    } // --- end of _msgRcvdEvents ---\n\n    /** Internal send fn. Send a standard or control msg back to Node-RED via Socket.IO\n     * NR will generally expect the msg to contain a payload topic\n     * @param {object} msgToSend The msg object to send.\n     * @param {string} [channel=uiBuilderClient] The Socket.IO channel to use, must be in self.ioChannels or it will be ignored\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    _send(msgToSend, channel, originator = '') {\n        if (channel === null || channel === undefined) channel = this._ioChannels.client\n\n        // Make sure msgToSend is an object\n        if (channel === this._ioChannels.client) {\n            msgToSend = makeMeAnObject(msgToSend, 'payload')\n        } else if (channel === this._ioChannels.control) {\n            msgToSend = makeMeAnObject(msgToSend, 'uibuilderCtrl')\n            if (!Object.prototype.hasOwnProperty.call(msgToSend, 'uibuilderCtrl')) {\n                msgToSend.uibuilderCtrl = 'manual send'\n            }\n            // help remember where this came from as ctrl msgs can come from server or client\n            msgToSend.from = 'client'\n        }\n\n        /** since 2020-01-02 Added _socketId which should be the same as the _socketId on the server */\n        msgToSend._socketId = this._socket.id\n\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n\n        // Add the originator metadata if required\n        if (originator === '' && this.originator !== '') originator = this.originator\n        if (originator !== '') Object.assign(msgToSend, { '_uib': { 'originator': originator } })\n\n        // If the msg does not have a topic - see if we want to add one\n        if ( !Object.prototype.hasOwnProperty.call(msgToSend, 'topic') ) {\n            // From the default (`uibuilder.set('topic', 'some topic')`)\n            if (this.topic !== undefined && this.topic !== '') msgToSend.topic = this.topic\n            else {\n                // Did the last inbound msg have a topic?\n                if ( Object.prototype.hasOwnProperty.call(this, 'msg') && Object.prototype.hasOwnProperty.call(this.msg, 'topic') ) {\n                    msgToSend.topic = this.msg.topic\n                }\n            }\n        }\n\n        // If a standard send & _ui property exists, make sure to add _ui.from = 'client'\n        if (msgToSend._ui) msgToSend._ui.from = 'client'\n\n        // Track how many messages have been sent & last msg sent\n        let numMsgs\n        if (channel === this._ioChannels.client) {\n            this.set('sentMsg', msgToSend)\n            numMsgs = this.set('msgsSent', ++this.msgsSent)\n        } else if (channel === this._ioChannels.control) {\n            this.set('sentCtrlMsg', msgToSend)\n            numMsgs = this.set('msgsSentCtrl', ++this.msgsSentCtrl)\n        }\n        log('trace', 'Uib:_send', ` Channel '${channel}'. Sending msg #${numMsgs}`, msgToSend)()\n\n        this._socket.emit(channel, msgToSend)\n    } // --- End of Send Msg Fn --- //\n\n    /** Callback handler for messages from Node-RED\n     * NOTE: `this` is the class here rather the `socket` as would be normal since we bind the correct `this` in the call.\n     *       Use this._socket if needing reference to the socket.\n     * @callback ioSetupFromServer Called from ioSetup/this._socket.on(this.#ioChannels.server, this.stdMsgFromServer.bind(this))\n     * @param {object} receivedMsg The msg object from Node-RED\n     * @this Uib\n     */\n    _stdMsgFromServer(receivedMsg) {\n\n        // Make sure that msg is an object & not null\n        receivedMsg = makeMeAnObject(receivedMsg, 'payload')\n\n        // Don't process if the inbound msg is not for us\n        if (receivedMsg._uib && !this._forThis(receivedMsg._uib)) return\n        if (receivedMsg._ui && !this._forThis(receivedMsg._ui)) return\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedMsg)\n\n        // Track how many messages have been received\n        this.set('msgsReceived', ++this.msgsReceived)\n\n        // Emit specific document events on msg receipt that make it easy for coders to use\n        this._msgRcvdEvents(receivedMsg)\n\n        if ( !('_ui' in receivedMsg && !('payload' in receivedMsg)) ) {\n            // Save the msg for further processing\n            this.set('msg', receivedMsg)\n        }\n\n        log('info', 'Uib:ioSetup:stdMsgFromServer', `Channel '${this._ioChannels.server}'. Received msg #${this.msgsReceived}.`, receivedMsg)()\n\n        // ! NOTE: Don't try to handle specialist messages here. See _msgRcvdEvents.\n    } // -- End of websocket receive DATA msg from Node-RED -- //\n\n    /** Process msg._uib.command - Remember to update #extCommands with new allowed commands\n     * @param {object} msg Msg from Node-RED containing a msg._uib object\n     */\n    _uibCommand(msg) {\n        if (!msg._uib || !msg._uib.command) {\n            log('error', 'uibuilder:_uibCommand', 'Invalid command message received', { msg })()\n            msg.payload = msg.error = 'Invalid command message received'\n            this.send(msg)\n            return\n        }\n        const cmd = msg._uib.command\n        // Disallowed command request outputs error and ignores the msg (NB: Case must match)\n        if (!this.#extCommands.includes(cmd.trim())) {\n            log('error', 'Uib:_uibCommand', `Command '${cmd} is not allowed to be called externally`)()\n            return\n        }\n        const prop = msg._uib.prop\n        const value = msg._uib.value\n        const quiet = msg._uib.quiet ?? false\n        let response, info\n\n        // Don't forget to update `#extCommands`, `docs/client-docs/control-from-node-red.md` & `functions.md`\n        switch (cmd) {\n            case 'elementIsVisible': {\n                response = this.elementIsVisible(prop)\n                // info = `Element \"${prop}\" ${response ? 'is visible' : 'is not visible'}`\n                break\n            }\n\n            case 'elementExists': {\n                response = this.elementExists(prop, false)\n                info = `Element \"${prop}\" ${response ? 'exists' : 'does not exist'}`\n                break\n            }\n\n            case 'get': {\n                response = this.get(prop)\n                break\n            }\n\n            case 'getManagedVarList': {\n                if (prop === 'full') response = this.getManagedVarList()\n                else response = Object.values(this.getManagedVarList())\n                break\n            }\n\n            case 'getWatchedVars': {\n                if (prop === 'full') response = this.getWatchedVars()\n                else response = Object.values(this.getWatchedVars())\n                break\n            }\n\n            case 'htmlSend': {\n                response = this.htmlSend('', false)\n                break\n            }\n\n            case 'include': {\n                // include is async\n                response = _ui.include(prop, value)\n                break\n            }\n\n            case 'navigate': {\n                let newUrl\n                if (prop) newUrl = prop\n                else if (value) newUrl = value\n                response = this.navigate(newUrl)\n                break\n            }\n\n            case 'scrollTo': {\n                response = this.scrollTo(prop, value)\n                break\n            }\n\n            case 'set': {\n                let store = false\n                let autoload = false\n                if (msg._uib.options && msg._uib.options.store) {\n                    if (msg._uib.options.store === true) store = true\n                    if (msg._uib.options.autoload === true) autoload = true\n                }\n                response = this.set(prop, value, store, autoload)\n                break\n            }\n\n            case 'showMsg': {\n                response = this.showMsg(value, prop)\n                break\n            }\n\n            case 'showStatus': {\n                response = this.showStatus(value, prop)\n                break\n            }\n\n            case 'uiGet': {\n                response = _ui.uiGet(prop, value)\n                break\n            }\n\n            case 'uiWatch': {\n                response = this.uiWatch(prop)\n                break\n            }\n\n            case 'watchUrlHash': {\n                response = this.watchUrlHash(prop)\n                break\n            }\n\n            default: {\n                log('warning', 'Uib:_uibCommand', `Command '${cmd}' not yet implemented`)()\n                break\n            }\n        }\n\n        if (quiet !== true) {\n            if (response === undefined) {\n                response = `'${prop}' is undefined`\n            }\n            if (Object(response).constructor === Promise) {\n                // response = `'${cmd} ${prop}' submitted. Cmd is async, no response available`\n                response\n                    .then( (/** @type {any} */ data) => {\n                        msg.payload = msg._uib.response = data\n                        msg.info = msg._uib.info = info\n                        if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                        this.send(msg)\n                        return true\n                    })\n                    .catch( err => {\n                        log(0, 'Uib:_uibCommand', 'Error: ', err)()\n                    })\n            } else {\n                msg.payload = msg._uib.response = response\n                msg.info = msg._uib.info = info\n                if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                this.send(msg)\n            }\n        }\n    } // --- end of _uibCommand ---\n\n    /** Send log text to uibuilder's beacon endpoint (works even if socket.io not connected)\n     * @param {string} txtToSend Text string to send\n     * @param {string|undefined} logLevel Log level to use. If not supplied, will default to debug\n     */\n    beaconLog(txtToSend, logLevel) {\n        if (!logLevel) logLevel = 'debug'\n        navigator.sendBeacon('./_clientLog', `${logLevel}::${txtToSend}`)\n    }\n\n    /** Easily send the entire DOM/HTML msg back to Node-RED\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     * @param {boolean} [send] If true (default) directly send response to Node-RED. Is false when calling from Node-RED as a command.\n     * @returns {string} The HTML as a string\n     */\n    htmlSend(originator = '', send = true) {\n        const out = `<!doctype html>\\n${document.documentElement.outerHTML}`\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            payload: out,\n            length: out.length,\n            topic: this.topic,\n        }\n\n        log('trace', 'Uib:htmlSend', 'Sending full HTML to Node-RED', msg)()\n\n        if (send === true) this._send(msg, this._ioChannels.client, originator)\n        return out\n    }\n\n    /** Send log info back to Node-RED over uibuilder's websocket control output (Port #2)\n     * @param {...*} arguments All arguments passed to the function are added to the msg.payload\n     */\n    logToServer() {\n        this.sendCtrl({\n            uibuilderCtrl: 'client log message',\n            payload: arguments,\n            // \"version\":\"6.1.0-iife.min\",\n            _socketId: this._socket.id,\n            // \"ip\":\"::1\",\n            clientId: this.clientId,\n            tabId: this.tabId,\n            // \"url\":\"esp-test\",\n            pageName: this.pageName,\n            connections: this.connectedNum,\n            lastNavType: this.lastNavType,\n        })\n    }\n\n    /** Easily send a msg back to Node-RED on a DOM event\n     * @example In plain HTML/JavaScript\n     *    `<button id=\"button1\" name=\"button 1\" data-fred=\"jim\"></button>`\n     *    $('#button1').onclick = (evt) => {\n     *      uibuilder.eventSend(evt)\n     *    }\n     * @example\n     * In VueJS: `<b-button id=\"myButton1\" @click=\"doEvent\" data-something=\"hello\"></b-button>`\n     * In VueJS methods: `doEvent: uibuilder.eventSend,`\n     *\n     * All `data-` attributes will be passed back to Node-RED,\n     *    use them instead of arguments in the click function.\n     *    All target._ui custom properties are also passed back to Node-RED.\n     *\n     * @param {MouseEvent|any} domevent DOM Event object\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    eventSend(domevent, originator = '') { // eslint-disable-line sonarjs/cognitive-complexity\n        // @ts-ignore Handle case where vue messes up `this`\n        if ( this.$attrs ) {\n            log('error', 'Uib:eventSend', '`this` has been usurped by VueJS. Make sure that you wrap the call in a function: `doEvent: function (event) { uibuilder.eventSend(event) },`' )()\n            return\n        }\n        if (!domevent && !event) {\n            log('warn', 'Uib:eventSend', 'Neither the domevent nor the hidden event properties are set. You probably called this function directly rather than applying to an on click event.' )()\n            return\n        }\n        // Handle no argument, e.g. <button onClick=\"uibuilder.eventSend()\"> - event is a hidden variable when fn used in addEventListener\n        if (!domevent || !domevent.constructor) domevent = event\n\n        // The argument must be a DOM event\n        if ((!domevent.constructor.name.endsWith('Event')) || (!domevent.currentTarget)) {\n            log('warn', 'Uib:eventSend', `ARGUMENT NOT A DOM EVENT - use data attributes not function arguments to pass data. Arg Type: ${domevent.constructor.name}`, domevent)()\n            return\n        }\n\n        // Prevent default event action\n        domevent.preventDefault()\n\n        // The target element\n        const target = domevent.currentTarget\n\n        // Get target properties - only shows custom props not element default ones\n        const props = {}\n        Object.keys(target).forEach( key => {\n            if (key.startsWith('_')) return // Exclude private\n            props[key] = target[key]\n        })\n\n        // Attempt to get target attributs - can fail for certain target types\n        const ignoreAttribs = ['class', 'id', 'name']\n        let attribs\n        try {\n            attribs = Object.assign({},\n                ...Array.from(target.attributes,\n                    ( { name, value } ) => {\n                        if ( !ignoreAttribs.includes(name) ) {\n                            return ({ [name]: value })\n                        }\n                        return undefined\n                    }\n                )\n            )\n        } catch (e) {}\n\n        // If target embedded in a form, include the form data\n        let form\n        const frmVals = []\n        if ( target.form ) {\n            form = {}\n            form.valid = target.form.checkValidity()\n            Object.values(target.form).forEach( (frmEl, i) => {\n                const id = frmEl.id !== '' ? frmEl.id : (frmEl.name !== '' ? frmEl.name : `${i}-${frmEl.type}`)\n\n                // We must have both an element id (we may have forced one above) AND\n                // the element type MUST be not undefined - to allow for the extra properties added by frameworks such as Svelte\n                if (id !== '' && frmEl.type) {\n                    // Stupid HTML doesn't use value attrib for checkboxes. So override if value is set to default\n                    if ('checked' in frmEl && frmEl.value === 'on') frmEl.value = frmEl.checked.toString()\n\n                    frmVals.push( { key: id, val: frmEl.value } ) // simplified for addition to msg.payload\n\n                    form[id] = {\n                        'id': frmEl.id,\n                        'name': frmEl.name,\n                        'value': frmEl.value,\n                        'valid': frmEl.checkValidity(),\n                        'type': frmEl.type,\n                    }\n\n                    if (form[id].valid === false) {\n                        const v = frmEl.validity\n                        form[id].validity = {\n                            badInput: v.badInput === true ? v.badInput : undefined,\n                            customError: v.customError === true ? v.customError : undefined,\n                            patternMismatch: v.patternMismatch === true ? v.patternMismatch : undefined,\n                            rangeOverflow: v.rangeOverflow === true ? v.rangeOverflow : undefined,\n                            rangeUnderflow: v.rangeUnderflow === true ? v.rangeUnderflow : undefined,\n                            stepMismatch: v.stepMismatch === true ? v.stepMismatch : undefined,\n                            tooLong: v.tooLong === true ? v.tooLong : undefined,\n                            tooShort: v.tooShort === true ? v.tooShort : undefined,\n                            typeMismatch: v.typeMismatch === true ? v.typeMismatch : undefined,\n                            valueMissing: v.valueMissing === true ? v.valueMissing : undefined,\n                        }\n                    }\n\n                    if (frmEl.dataset) form[id].data = frmEl.dataset\n                }\n            })\n        }\n\n        // Check for CSS Classes\n        let classes\n        try {\n            classes = Array.from(target.classList)\n        } catch (e) {}\n\n        // Each `data-xxxx` attribute is added as a property\n        let payload = { ...target.dataset }\n\n        // Handle Notification events\n        let nprops\n        if ( Object.prototype.toString.call(target) === '[object Notification]') {\n            // Fixed payload for convenience\n            payload = `notification-${target.userAction}`\n            // Capture the notification properties\n            nprops = {\n                // userAction: target.userAction, // uib custom prop: click, close or error\n                actions: target.actions,\n                badge: target.badge,\n                body: target.body,\n                data: target.data,\n                dir: target.dir,\n                icon: target.icon,\n                image: target.image,\n                lang: target.lang,\n                renotify: target.renotify,\n                requireInteraction: target.requireInteraction,\n                silent: target.silent,\n                tag: target.tag,\n                timestamp: target.timestamp,\n                title: target.title,\n                vibrate: target.vibrate,\n            }\n        }\n        // console.log(Object.prototype.toString.call(target))\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            // - this may be an empty Object if no data attributes defined\n            payload: payload,\n\n            _ui: {\n                type: 'eventSend',\n                id: target.id !== '' ? target.id : undefined,\n                name: target.name !== '' ? target.name : undefined,\n                slotText: target.textContent ? target.textContent.substring(0, 255) : undefined,\n\n                form: form,\n                props: props,\n                attribs: attribs,\n                classes: classes,\n\n                notification: nprops,\n\n                event: domevent.type,\n                altKey: domevent.altKey,\n                ctrlKey: domevent.ctrlKey,\n                shiftKey: domevent.shiftKey,\n                metaKey: domevent.metaKey,\n\n                pointerType: domevent.pointerType,\n                nodeName: target.nodeName,\n\n                clientId: this.clientId,\n                pageName: this.pageName,\n                tabId: this.tabId,\n            }\n        }\n\n        if (frmVals.length > 0) {\n            frmVals.forEach( entry => {\n                msg.payload[entry.key] = entry.val\n            })\n        }\n\n        if (domevent.type === 'change') {\n            // Checkboxes don't have a value!!\n            msg._ui.newValue = msg.payload.value = 'checked' in target ? target.checked : domevent.target.value\n        }\n\n        log('trace', 'Uib:eventSend', 'Sending msg to Node-RED', msg)()\n        if (target.dataset && target.dataset.length === 0) log('warn', 'Uib:eventSend', 'No payload in msg. data-* attributes should be used.')()\n\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Send a standard message to NR\n     * @example uibuilder.send({payload:'Hello'})\n     * @param {object} msg Message to send\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    send(msg, originator = '') {\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    // ! TODO: Rooms do not auto-reconnect. Add tracking and update _onConnect\n\n    // NOTE: Rooms only understood by server not client so we have to use custom emits\n    //       They do not auto-reconnect\n\n    /** Send a msg to a pre-defined Socket.IO room\n     * @link https://socket.io/docs/v4/rooms/\n     * @param {string} room Name of a Socket.IO pre-defined room.\n     * @param {*} msg Message to send\n     */\n    sendRoom(room, msg) {\n        this._socket.emit('uib-room-send', room, msg )\n    }\n\n    joinRoom(room) {\n        this._socket.emit('uib-room-join', room)\n    }\n\n    leaveRoom(room) {\n        this._socket.emit('uib-room-leave', room)\n    }\n\n    /** Send a control msg to NR\n     * @param {object} msg Message to send\n     */\n    sendCtrl(msg) {\n        this._send(msg, this._ioChannels.control)\n    }\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Socket.IO -------- //\n\n    /** Return the Socket.IO namespace\n     * The cookie method is the most reliable but this falls back to trying to work it\n     * out from the URL if cookies not available. That won't work if page is in a sub-folder.\n     * since 2017-10-21 Improve method to cope with more complex paths - thanks to Steve Rickus @shrickus\n     * since 2017-11-10 v1.0.1 Check cookie first then url. cookie works even if the path is more complex (e.g. sub-folder)\n     * since 2020-01-25 Removed httpRoot from namespace to prevent proxy induced errors\n     * @returns {string} Socket.IO namespace\n     */\n    _getIOnamespace() {\n\n        let ioNamespace\n\n        /** Try getting the namespace cookie. */\n        ioNamespace = this.cookies['uibuilder-namespace']\n\n        // if it wasn't available, try using the current url path\n        if (ioNamespace === undefined || ioNamespace === '') {\n            // split url path & eliminate any blank elements, and trailing or double slashes\n            const u = window.location.pathname.split('/')\n                .filter(function (t) { return t.trim() !== '' })\n\n            /** since v2.0.5 Extra check for 0 length, Issue #73. since 2017-11-06 If the last element of the path is an .html file name, remove it */\n            if (u.length > 0 && (u[u.length - 1].endsWith('.html'))) u.pop()\n\n            // Get the last part of the url path, this MUST match the namespace in uibuilder\n            ioNamespace = u.pop()\n\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via url path: ${ioNamespace}`)()\n        } else {\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via cookie: ${ioNamespace}`)()\n        }\n\n        this.url = ioNamespace\n        // Namespace HAS to start with a /\n        ioNamespace = '/' + ioNamespace\n\n        log('trace', 'uibuilder.module.js:getIOnamespace', `Final Socket.IO namespace: ${ioNamespace}`)()\n\n        return ioNamespace\n    } // --- End of set IO namespace --- //\n\n    /** Function used to check whether Socket.IO is connected to the server, reconnect if not (recursive)\n     * @param {number} [delay] Initial delay before checking (ms). Default=2000ms\n     * @param {number} [factor] Multiplication factor for subsequent checks (delay*factor). Default=1.5\n     * @param {number} [depth] Recursion depth\n     * @returns {boolean|undefined} Whether or not Socket.IO is connected to uibuilder in Node-RED\n     */\n    _checkConnect(delay, factor, depth = 1) {\n        if ( navigator.onLine === false ) return // Don't bother if we know we are offline\n\n        if (!delay) delay = this.retryMs\n        if (!factor) factor = this.retryFactor\n\n        log('trace', 'Uib:checkConnect', `Checking connection. Connected: ${this._socket.connected}. Timer: ${this.#timerid}. Depth: ${depth}. Delay: ${delay}. Factor: ${factor}`, this._socket)()\n\n        // If we are connected ...\n        if (this._socket.connected === true) {\n            // Clear the setTimeout\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this.set('ioConnected', true)\n            this.set('socketError', null)\n            return true\n        }\n\n        // ... we aren't connected so:\n        this.set('ioConnected', false)\n\n        // we only want one running at a time\n        if (this.#timerid) window.clearTimeout(this.#timerid)\n\n        // Create the new timer\n        this.#timerid = window.setTimeout(() => {\n            log('warn', 'Uib:checkConnect:setTimeout', `Socket.IO reconnection attempt. Current delay: ${delay}. Depth: ${depth}`)()\n\n            // this is necessary sometimes when the socket fails to connect on startup\n            this._socket.disconnect()\n\n            // Try to reconnect\n            this._socket.connect()\n\n            // don't need to check whether we have connected as the timer will have been cleared if we have\n            this.#timerid = null\n\n            // @ts-ignore Create new timer for next time round with extended delay\n            this._checkConnect(delay * factor, factor, depth++)\n        }, delay)\n\n        return false\n    } // --- End of checkConnect Fn--- //\n\n    // See message handling section for msg receipt handlers\n\n    /** Called by _ioSetup when Socket.IO connects to Node-RED */\n    _onConnect() {\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n        log('info', 'Uib:ioSetup', `\u2705 SOCKET CONNECTED. Connection count: ${this.connectedNum}, Is a Recovery?: ${this._socket.recovered}. \\nNamespace: ${this.ioNamespace}`)()\n        this._dispatchCustomEvent('uibuilder:socket:connected', { 'numConnections': this.connectedNum, 'isRecovery': this._socket.recovered })\n\n        this._checkConnect() // resets any reconnection timers & sets connected flag\n    }\n\n    /** Called by _ioSetup when Socket.IO disconnects from Node-RED\n     * @param {string} reason Disconnection title\n     */\n    _onDisconnect(reason) {\n        // reason === 'io server disconnect' - redeploy of Node instance\n        // reason === 'transport close' - Node-RED terminating\n        // reason === 'ping timeout' - didn't receive a pong response?\n        log('info', 'Uib:ioSetup:socket-disconnect', `\u26D4 Socket Disconnected. Reason: ${reason}`)()\n\n        this._dispatchCustomEvent('uibuilder:socket:disconnected', reason)\n\n        /** A workaround for SIO's failure to reconnect after a disconnection */\n        this._checkConnect()\n    }\n\n    /** Setup Socket.io\n     * since v2.0.0-beta2 Moved to a function and called by the user (uibuilder.start()) so that namespace & path can be passed manually if needed\n     * @returns {boolean} Attaches socket.io manager to self._socket and updates self.ioNamespace & self.ioPath as needed\n     */\n    _ioSetup() {\n\n        // Just a notification, actual load is done outside the class (see start of file)\n        if (io === undefined) {\n            log('error', 'Uib:ioSetup', 'Socket.IO client not loaded, Node-RED comms will not work')()\n            return false\n        }\n\n        // If socket is already set up, close it and remove all of the listeners\n        if (this._socket) {\n            log('trace', 'Uib:ioSetup', 'Removing listeners in preparation for redoing Socket.IO connections')()\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this._socket.close()\n            this._socket.offAny()\n            this._socket = undefined\n            this.set('ioConnected', false)\n        }\n\n        // Update the URL path to make sure we have the right one\n        this.socketOptions.path = this.ioPath\n\n        // NOTE: this._socket.auth is now set by callback and so automatically updated for each client (re)connection. No need to set here\n\n        // Create the socket - make sure client uses Socket.IO version from the uibuilder module (using path)\n        log('trace', 'Uib:ioSetup', `About to create IO object. Transports: [${this.socketOptions.transports.join(', ')}]`)()\n        this._socket = io(this.ioNamespace, this.socketOptions)\n\n        this._connectGlobal()\n\n        /** When the socket is connected - set ioConnected flag and reset connect timer  */\n        this._socket.on('connect', this._onConnect.bind(this))\n\n        // RECEIVE a STANDARD, non-control msg from Node-RED server\n        this._socket.on(this._ioChannels.server, this._stdMsgFromServer.bind(this))\n\n        // RECEIVE a CONTROL msg from Node-RED server - see also sendCtrl()\n        this._socket.on(this._ioChannels.control, this._ctrlMsgFromServer.bind(this))\n\n        // When the socket is disconnected ..............\n        this._socket.on('disconnect', this._onDisconnect.bind(this))\n\n        // Socket.io connection error - probably the wrong ioPath - or client is offline\n        this._socket.on('connect_error', (err) => {\n            if ( navigator.onLine === false ) return // Don't bother with an error if we know we are offline\n            log('error', 'Uib:ioSetup:connect_error', `\u274C Socket.IO Connect Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket connect error processing ---\n\n        // Socket.io error - from the server (socket.use middleware triggered an error response)\n        this._socket.on('error', (err) => {\n            log('error', 'Uib:ioSetup:error', `\u274C Socket.IO Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket error processing ---\n\n        // Ensure we are connected, retry if not\n        this._checkConnect()\n\n        return true\n\n        /* We really don't need these, just for interest\n            self._socket.io.on('packet', function onPacket(data){\n                // we get one of these for each REAL msg (not ping/pong)\n                console.debug('PACKET', data)\n            })\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n                //console.dir(self._socket)\n            }) // --- End of socket pong processing ---\n            self._socket.io.on('packet', function(data){\n                // We get one of these for actual messages, not ping/pong\n                console.debug('PACKET', data)\n            })\n            self._socket.on('connect_timeout', function(timeout) {\n                console.debug('SOCKET CONNECT TIMEOUT - Namespace: ' + ioNamespace + ', Timeout: ' + timeout)\n            }) // --- End of socket connect timeout processing ---\n            self._socket.on('reconnect', function(attemptNum) {\n                console.debug('SOCKET RECONNECTED - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect processing ---\n            self._socket.on('reconnect_attempt', function(attemptNum) {\n                console.debug('SOCKET RECONNECT ATTEMPT - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect_attempt processing ---\n            self._socket.on('reconnecting', function(attemptNum) {\n                console.debug('SOCKET RECONNECTING - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnecting processing ---\n            self._socket.on('reconnect_error', function(err) {\n                console.debug('SOCKET RECONNECT ERROR - Namespace: ' + ioNamespace + ', Reason: ' + err.message)\n                //console.dir(err)\n            }) // --- End of socket reconnect_error processing ---\n            self._socket.on('reconnect_failed', function() {\n                console.debug('SOCKET RECONNECT FAILED - Namespace: ' + ioNamespace)\n            }) // --- End of socket reconnect_failed processing ---\n            self._socket.on('ping', function() {\n                console.debug('SOCKET PING')\n            }) // --- End of socket ping processing ---\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n            }) // --- End of socket pong processing ---\n            */\n    } // ---- End of ioSetup ---- //\n\n    /** Connect to global namespace & create global listener that updates the `globalMsg` var */\n    _connectGlobal() {\n        this._socketGlobal = io('/', this.socketOptions)\n        this._socketGlobal.onAny( (...args) => {\n            this.set('globalMsg', args.slice(0, -1))\n        })\n    }\n\n    /** Manually (re)connect socket.io */\n    connect() {\n        // ? Should I use this._checkConnect()?\n        this._socket.connect()\n    }\n\n    /** Manually disconnect socket.io and stop any auto-reconnect timer */\n    disconnect() {\n        this._socket.disconnect()\n        // As this is a manual disconnect, stop any reconnect timers\n        if (this.#timerid) window.clearTimeout(this.#timerid)\n    }\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Class construction & startup method -------- //\n\n    constructor() {\n        log('trace', 'Uib:constructor', 'Starting')()\n\n        // Track whether the client is online or offline\n        window.addEventListener('offline', (e) => {\n            this.set('online', false)\n            this.set('ioConnected', false)\n            log('warn', 'Browser', 'DISCONNECTED from network')()\n        })\n        window.addEventListener('online', (e) => {\n            this.set('online', true)\n            log('warn', 'Browser', 'Reconnected to network')()\n            this._checkConnect()\n        })\n\n        document.cookie.split(';').forEach((c) => {\n            const splitC = c.split('=')\n            this.cookies[splitC[0].trim()] = splitC[1]\n        })\n\n        /** Client ID set by uibuilder - lasts until browser profile is closed, applies to all tabs */\n        this.set('clientId', this.cookies['uibuilder-client-id'])\n        log('trace', 'Uib:constructor', 'Client ID: ', this.clientId)()\n\n        /** Tab ID - lasts while the tab is open (even if reloaded)\n         * WARNING: Duplicating a tab retains the same tabId\n         */\n        this.set('tabId', window.sessionStorage.getItem('tabId'))\n        if (!this.tabId) {\n            this.set('tabId', `t${Math.floor(Math.random() * 1000000)}`)\n            window.sessionStorage.setItem('tabId', this.tabId)\n        }\n\n        // document.addEventListener('pagehide', (event) => {\n        //     // console.log(`pagehide. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pagehide. From Cache?: ${event.persisted}`)\n        // })\n        // document.addEventListener('pageshow', (event) => {\n        //     // console.log(`pageshow. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pageshow. From Cache?: ${event.persisted}`)\n        // })\n        document.addEventListener('load', () => {\n            this.set('isVisible', true)\n        })\n        document.addEventListener('visibilitychange', () => {\n            // hidden=unload, minimise. visible=un-minimise (not fired on load)\n            this.set('isVisible', document.visibilityState === 'visible')\n            this.sendCtrl({ uibuilderCtrl: 'visibility', isVisible: this.isVisible })\n            // navigator.userActivation is experimental Chromium only\n            // console.log('visibilitychange', ':', `Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n            // navigator.sendBeacon('./_clientLog', `${(new Date()).toISOString()} Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n        })\n\n        // Set a listener to update showStatus table if it is active\n        document.addEventListener('uibuilder:propertyChanged', (event) => {\n            if (!this.#isShowStatus) return\n\n            // @ts-ignore\n            if (event.detail.prop in this.#showStatus) {\n                // @ts-ignore\n                document.querySelector(`td[data-vartype=\"${event.detail.prop}\"]`).innerText = JSON.stringify(event.detail.value)\n            }\n        })\n\n        this.set('ioNamespace', this._getIOnamespace())\n\n        //#region - Try to make sure client uses Socket.IO client version from the uibuilder module (using cookie or path) @since v2.0.0 2019-02-24 allows for httpNodeRoot\n\n        /** httpNodeRoot (to set path) */\n        if ('uibuilder-webRoot' in this.cookies) {\n            this.set('httpNodeRoot', this.cookies['uibuilder-webRoot'])\n            log('trace', 'Uib:constructor', `httpNodeRoot set by cookie to \"${this.httpNodeRoot}\"`)()\n        } else {\n            // split current url path, eliminate any blank elements and trailing or double slashes\n            const fullPath = window.location.pathname.split('/').filter(function (t) { return t.trim() !== '' })\n            /** handle url includes file name - @since v2.0.5 Extra check for 0 length, Issue #73. */\n            if (fullPath.length > 0 && fullPath[fullPath.length - 1].endsWith('.html')) fullPath.pop()\n            fullPath.pop() // gives the last path section of the url\n            this.set('httpNodeRoot', `/${fullPath.join('/')}`)\n            log('trace', '[Uib:constructor]', `httpNodeRoot set by URL parsing to \"${this.httpNodeRoot}\". NOTE: This may fail for pages in sub-folders.`)()\n        }\n        this.set('ioPath', urlJoin(this.httpNodeRoot, Uib._meta.displayName, 'vendor', 'socket.io'))\n        log('trace', 'Uib:constructor', `ioPath: \"${this.ioPath}\"`)()\n\n        //#endregion\n\n        // Work out pageName\n        this.set('pageName', window.location.pathname.replace(`${this.ioNamespace}/`, ''))\n        if ( this.pageName.endsWith('/') ) this.set('pageName', `${this.pageName}index.html`)\n        if ( this.pageName === '' ) this.set('pageName', 'index.html')\n\n        // Attempt to restore autoload variables\n        try {\n            const autoloadVars = this.getStore('_uibAutoloadVars')\n            if (Object.keys(autoloadVars).length > 0) {\n                Object.keys(autoloadVars).forEach( (id) => {\n                    this.set(id, this.getStore(id))\n                })\n            }\n        } catch (e) {}\n\n        this._dispatchCustomEvent('uibuilder:constructorComplete')\n\n        log('trace', 'Uib:constructor', 'Ending')()\n    }\n\n    /** Start up Socket.IO comms and listeners\n     * This has to be done separately because if running from a web page in a sub-folder of src/dist, uibuilder cannot\n     * necessarily work out the correct ioPath to use.\n     * Also, if cookies aren't permitted in the browser, both ioPath and ioNamespace may need to be specified.\n     * @param {object} [options] The start options object.\n     * @returns {void}\n     */\n    start(options) {\n        log('trace', 'Uib:start', 'Starting')()\n\n        // Cancel the msg event handler if already present\n        if ( this.#MsgHandler ) this.cancelChange('msg', this.#MsgHandler)\n\n        if (this.started === true) {\n            log('info', 'Uib:start', 'Start function already called. Resetting Socket.IO and msg handler.')()\n        }\n\n        log('log', 'Uib:start', 'Cookies: ', this.cookies, `\\nClient ID: ${this.clientId}`)()\n        log('trace', 'Uib:start', 'ioNamespace: ', this.ioNamespace, `\\nioPath: ${this.ioPath}`)()\n\n        // Handle options\n        if (options) {\n            if (options.ioNamespace) this.set('ioNamespace', options.ioNamespace)\n            if (options.ioPath) this.set('ioPath', options.ioPath)\n            if (options.nopolling && this.socketOptions.transports[0] === 'polling') this.socketOptions.transports.shift()\n            // See below for handling of options.loadStylesheet\n        }\n\n        // Do we need to load styles?\n        if ( document.styleSheets.length >= 1 || (document.styleSheets.length === 1 && document.styleSheets[0].cssRules.length === 0) ) {\n            log('info', 'Uib:start', 'Styles already loaded so not loading uibuilder default styles.')()\n        } else {\n            if (options && options.loadStylesheet === false) log('info', 'Uib:start', 'No styles loaded & options.loadStylesheet === false.')()\n            else {\n                log('info', 'Uib:start', 'No styles loaded, loading uibuilder default styles.')()\n                this.loadStyleSrc(`${this.httpNodeRoot}/uibuilder/uib-brand.min.css`)\n            }\n        }\n\n        /** Handle specialist messages like reload and _ui -> Moved to _msgRcvdEvents */\n\n        // Track last browser navigation type: navigate, reload, back_forward, prerender\n        // TODO Needs more work - updates on navigation needed?\n        const [entry] = performance.getEntriesByType('navigation')\n        // @ts-ignore\n        this.set('lastNavType', entry.type)\n\n        // Start up (or restart) Socket.IO connections and listeners. Returns false if io not found\n        this.set('started', this._ioSetup())\n\n        if ( this.started === true ) {\n            log('trace', 'Uib:start', 'Start completed. Socket.IO client library loaded.')()\n        } else {\n            log('error', 'Uib:start', 'Start completed. ERROR: Socket.IO client library NOT LOADED.')()\n        }\n\n        // Watch for URL hash changes in case using a front-end router. Updates watched var `urlHash` and socket.io `auth.urlHash`\n        this._watchHashChanges()\n\n        // Check if Vue is present (used for dynamic UI processing)\n        if (window['Vue']) {\n            this.set('isVue', true)\n            try {\n                this.set('vueVersion', window['Vue'].version)\n            } catch (e) { }\n            log('trace', 'Uib:start', `VueJS is loaded. Version: ${this.vueVersion}`)()\n        } else {\n            log('trace', 'Uib:start', 'VueJS is not loaded.')()\n        }\n\n        // Check if DOMPurify library is loaded\n        if (window['DOMPurify']) {\n            this.set('purify', true)\n            log('trace', 'Uib:start', 'DOMPurify is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'DOMPurify is not loaded.')()\n        }\n        // Check if Markdown-IT library is loaded\n        if (window['markdownit']) {\n            this.set('markdown', true)\n            log('trace', 'Uib:start', 'Markdown-IT is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'Markdown-IT is not loaded.')()\n        }\n\n        // if (window['DOMPurify']) {\n        //     this.set('purify', true)\n        //     log('trace', 'Uib:start', 'DOMPurify is loaded.')\n        // } else {\n        //     log('trace', 'Uib:start', 'DOMPurify is not loaded.')\n        // }\n\n        // Set up msg listener for the optional showMsg\n        this.onChange('msg', (msg) => {\n            if (this.#isShowMsg === true) {\n                const eMsg = document.getElementById('uib_last_msg')\n                if (eMsg) eMsg.innerHTML = this.syntaxHighlight(msg)\n            }\n        })\n\n        this._dispatchCustomEvent('uibuilder:startComplete')\n    }\n\n    //#endregion -------- ------------ -------- //\n} // ==== End of Class Uib ====\n\n//#region --- Wrap up - get things started ---\n\n// Create an instance (we will only ever want one)\nconst uibuilder = new Uib()\n\n// Assign reference to the instance to the global `window` object\n// Only useful if loading via <script> tag - prefer loading via `import uibuilder from ...`\nif (!window['uibuilder']) {\n    window['uibuilder'] = uibuilder\n} else {\n    log('error', 'uibuilder.module.js', '`uibuilder` already assigned to window. Have you tried to load it more than once?')\n}\nif (!window['uib']) {\n    window['uib'] = uibuilder\n} else {\n    log('warn', 'uibuilder.module.js', '`uib` shortcut already assigned to window.')\n}\n\n// Assign `$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$`.\nif (!window['$']) {\n    /** @type {HTMLElement} */\n    window['$'] = window['uibuilder'].$ // document.querySelector.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` or `uib.$` instead.')\n}\n// Assign `$$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$$']) {\n    /** @type {HTMLElement} */\n    window['$$'] = window['uibuilder'].$$ // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` or `uib.$$` instead.')\n}\n\n// Assign `$ui` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$ui']) {\n    /** @type {HTMLElement} */\n    window['$ui'] = window['uibuilder'].$ui // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$ui`, it is already in use. Use `uibuilder.$ui` or `uib.$ui` instead.')\n}\n\n// Can import as `import uibuilder from ...` OR `import {uibuilder} from ...`\nexport { uibuilder }\nexport default uibuilder\n\n// Attempt to run start fn\nuibuilder.start()\n\n// Add the class as a new Custom Element to the window object\ncustomElements.define('uib-var', UibVar)\n\n//#endregion --- Wrap up ---\n\n// EOF\n", "const PACKET_TYPES = Object.create(null); // no Map = no polyfill\nPACKET_TYPES[\"open\"] = \"0\";\nPACKET_TYPES[\"close\"] = \"1\";\nPACKET_TYPES[\"ping\"] = \"2\";\nPACKET_TYPES[\"pong\"] = \"3\";\nPACKET_TYPES[\"message\"] = \"4\";\nPACKET_TYPES[\"upgrade\"] = \"5\";\nPACKET_TYPES[\"noop\"] = \"6\";\nconst PACKET_TYPES_REVERSE = Object.create(null);\nObject.keys(PACKET_TYPES).forEach(key => {\n    PACKET_TYPES_REVERSE[PACKET_TYPES[key]] = key;\n});\nconst ERROR_PACKET = { type: \"error\", data: \"parser error\" };\nexport { PACKET_TYPES, PACKET_TYPES_REVERSE, ERROR_PACKET };\n", "import { PACKET_TYPES } from \"./commons.js\";\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        Object.prototype.toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\n// ArrayBuffer.isView method is not defined in IE10\nconst isView = obj => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj && obj.buffer instanceof ArrayBuffer;\n};\nconst encodePacket = ({ type, data }, supportsBinary, callback) => {\n    if (withNativeBlob && data instanceof Blob) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(data, callback);\n        }\n    }\n    else if (withNativeArrayBuffer &&\n        (data instanceof ArrayBuffer || isView(data))) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(new Blob([data]), callback);\n        }\n    }\n    // plain string\n    return callback(PACKET_TYPES[type] + (data || \"\"));\n};\nconst encodeBlobAsBase64 = (data, callback) => {\n    const fileReader = new FileReader();\n    fileReader.onload = function () {\n        const content = fileReader.result.split(\",\")[1];\n        callback(\"b\" + (content || \"\"));\n    };\n    return fileReader.readAsDataURL(data);\n};\nfunction toArray(data) {\n    if (data instanceof Uint8Array) {\n        return data;\n    }\n    else if (data instanceof ArrayBuffer) {\n        return new Uint8Array(data);\n    }\n    else {\n        return new Uint8Array(data.buffer, data.byteOffset, data.byteLength);\n    }\n}\nlet TEXT_ENCODER;\nexport function encodePacketToBinary(packet, callback) {\n    if (withNativeBlob && packet.data instanceof Blob) {\n        return packet.data\n            .arrayBuffer()\n            .then(toArray)\n            .then(callback);\n    }\n    else if (withNativeArrayBuffer &&\n        (packet.data instanceof ArrayBuffer || isView(packet.data))) {\n        return callback(toArray(packet.data));\n    }\n    encodePacket(packet, false, encoded => {\n        if (!TEXT_ENCODER) {\n            TEXT_ENCODER = new TextEncoder();\n        }\n        callback(TEXT_ENCODER.encode(encoded));\n    });\n}\nexport { encodePacket };\n", "// imported from https://github.com/socketio/base64-arraybuffer\nconst chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';\n// Use a lookup table to find the index.\nconst lookup = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);\nfor (let i = 0; i < chars.length; i++) {\n    lookup[chars.charCodeAt(i)] = i;\n}\nexport const encode = (arraybuffer) => {\n    let bytes = new Uint8Array(arraybuffer), i, len = bytes.length, base64 = '';\n    for (i = 0; i < len; i += 3) {\n        base64 += chars[bytes[i] >> 2];\n        base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];\n        base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];\n        base64 += chars[bytes[i + 2] & 63];\n    }\n    if (len % 3 === 2) {\n        base64 = base64.substring(0, base64.length - 1) + '=';\n    }\n    else if (len % 3 === 1) {\n        base64 = base64.substring(0, base64.length - 2) + '==';\n    }\n    return base64;\n};\nexport const decode = (base64) => {\n    let bufferLength = base64.length * 0.75, len = base64.length, i, p = 0, encoded1, encoded2, encoded3, encoded4;\n    if (base64[base64.length - 1] === '=') {\n        bufferLength--;\n        if (base64[base64.length - 2] === '=') {\n            bufferLength--;\n        }\n    }\n    const arraybuffer = new ArrayBuffer(bufferLength), bytes = new Uint8Array(arraybuffer);\n    for (i = 0; i < len; i += 4) {\n        encoded1 = lookup[base64.charCodeAt(i)];\n        encoded2 = lookup[base64.charCodeAt(i + 1)];\n        encoded3 = lookup[base64.charCodeAt(i + 2)];\n        encoded4 = lookup[base64.charCodeAt(i + 3)];\n        bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n        bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n        bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n    }\n    return arraybuffer;\n};\n", "import { ERROR_PACKET, PACKET_TYPES_REVERSE } from \"./commons.js\";\nimport { decode } from \"./contrib/base64-arraybuffer.js\";\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nexport const decodePacket = (encodedPacket, binaryType) => {\n    if (typeof encodedPacket !== \"string\") {\n        return {\n            type: \"message\",\n            data: mapBinary(encodedPacket, binaryType)\n        };\n    }\n    const type = encodedPacket.charAt(0);\n    if (type === \"b\") {\n        return {\n            type: \"message\",\n            data: decodeBase64Packet(encodedPacket.substring(1), binaryType)\n        };\n    }\n    const packetType = PACKET_TYPES_REVERSE[type];\n    if (!packetType) {\n        return ERROR_PACKET;\n    }\n    return encodedPacket.length > 1\n        ? {\n            type: PACKET_TYPES_REVERSE[type],\n            data: encodedPacket.substring(1)\n        }\n        : {\n            type: PACKET_TYPES_REVERSE[type]\n        };\n};\nconst decodeBase64Packet = (data, binaryType) => {\n    if (withNativeArrayBuffer) {\n        const decoded = decode(data);\n        return mapBinary(decoded, binaryType);\n    }\n    else {\n        return { base64: true, data }; // fallback for old browsers\n    }\n};\nconst mapBinary = (data, binaryType) => {\n    switch (binaryType) {\n        case \"blob\":\n            if (data instanceof Blob) {\n                // from WebSocket + binaryType \"blob\"\n                return data;\n            }\n            else {\n                // from HTTP long-polling or WebTransport\n                return new Blob([data]);\n            }\n        case \"arraybuffer\":\n        default:\n            if (data instanceof ArrayBuffer) {\n                // from HTTP long-polling (base64) or WebSocket + binaryType \"arraybuffer\"\n                return data;\n            }\n            else {\n                // from WebTransport (Uint8Array)\n                return data.buffer;\n            }\n    }\n};\n", "import { encodePacket, encodePacketToBinary } from \"./encodePacket.js\";\nimport { decodePacket } from \"./decodePacket.js\";\nimport { ERROR_PACKET } from \"./commons.js\";\nconst SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text\nconst encodePayload = (packets, callback) => {\n    // some packets may be added to the array while encoding, so the initial length must be saved\n    const length = packets.length;\n    const encodedPackets = new Array(length);\n    let count = 0;\n    packets.forEach((packet, i) => {\n        // force base64 encoding for binary packets\n        encodePacket(packet, false, encodedPacket => {\n            encodedPackets[i] = encodedPacket;\n            if (++count === length) {\n                callback(encodedPackets.join(SEPARATOR));\n            }\n        });\n    });\n};\nconst decodePayload = (encodedPayload, binaryType) => {\n    const encodedPackets = encodedPayload.split(SEPARATOR);\n    const packets = [];\n    for (let i = 0; i < encodedPackets.length; i++) {\n        const decodedPacket = decodePacket(encodedPackets[i], binaryType);\n        packets.push(decodedPacket);\n        if (decodedPacket.type === \"error\") {\n            break;\n        }\n    }\n    return packets;\n};\nexport function createPacketEncoderStream() {\n    return new TransformStream({\n        transform(packet, controller) {\n            encodePacketToBinary(packet, encodedPacket => {\n                const payloadLength = encodedPacket.length;\n                let header;\n                // inspired by the WebSocket format: https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API/Writing_WebSocket_servers#decoding_payload_length\n                if (payloadLength < 126) {\n                    header = new Uint8Array(1);\n                    new DataView(header.buffer).setUint8(0, payloadLength);\n                }\n                else if (payloadLength < 65536) {\n                    header = new Uint8Array(3);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 126);\n                    view.setUint16(1, payloadLength);\n                }\n                else {\n                    header = new Uint8Array(9);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 127);\n                    view.setBigUint64(1, BigInt(payloadLength));\n                }\n                // first bit indicates whether the payload is plain text (0) or binary (1)\n                if (packet.data && typeof packet.data !== \"string\") {\n                    header[0] |= 0x80;\n                }\n                controller.enqueue(header);\n                controller.enqueue(encodedPacket);\n            });\n        }\n    });\n}\nlet TEXT_DECODER;\nfunction totalLength(chunks) {\n    return chunks.reduce((acc, chunk) => acc + chunk.length, 0);\n}\nfunction concatChunks(chunks, size) {\n    if (chunks[0].length === size) {\n        return chunks.shift();\n    }\n    const buffer = new Uint8Array(size);\n    let j = 0;\n    for (let i = 0; i < size; i++) {\n        buffer[i] = chunks[0][j++];\n        if (j === chunks[0].length) {\n            chunks.shift();\n            j = 0;\n        }\n    }\n    if (chunks.length && j < chunks[0].length) {\n        chunks[0] = chunks[0].slice(j);\n    }\n    return buffer;\n}\nexport function createPacketDecoderStream(maxPayload, binaryType) {\n    if (!TEXT_DECODER) {\n        TEXT_DECODER = new TextDecoder();\n    }\n    const chunks = [];\n    let state = 0 /* READ_HEADER */;\n    let expectedLength = -1;\n    let isBinary = false;\n    return new TransformStream({\n        transform(chunk, controller) {\n            chunks.push(chunk);\n            while (true) {\n                if (state === 0 /* READ_HEADER */) {\n                    if (totalLength(chunks) < 1) {\n                        break;\n                    }\n                    const header = concatChunks(chunks, 1);\n                    isBinary = (header[0] & 0x80) === 0x80;\n                    expectedLength = header[0] & 0x7f;\n                    if (expectedLength < 126) {\n                        state = 3 /* READ_PAYLOAD */;\n                    }\n                    else if (expectedLength === 126) {\n                        state = 1 /* READ_EXTENDED_LENGTH_16 */;\n                    }\n                    else {\n                        state = 2 /* READ_EXTENDED_LENGTH_64 */;\n                    }\n                }\n                else if (state === 1 /* READ_EXTENDED_LENGTH_16 */) {\n                    if (totalLength(chunks) < 2) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 2);\n                    expectedLength = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length).getUint16(0);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else if (state === 2 /* READ_EXTENDED_LENGTH_64 */) {\n                    if (totalLength(chunks) < 8) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 8);\n                    const view = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length);\n                    const n = view.getUint32(0);\n                    if (n > Math.pow(2, 53 - 32) - 1) {\n                        // the maximum safe integer in JavaScript is 2^53 - 1\n                        controller.enqueue(ERROR_PACKET);\n                        break;\n                    }\n                    expectedLength = n * Math.pow(2, 32) + view.getUint32(4);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else {\n                    if (totalLength(chunks) < expectedLength) {\n                        break;\n                    }\n                    const data = concatChunks(chunks, expectedLength);\n                    controller.enqueue(decodePacket(isBinary ? data : TEXT_DECODER.decode(data), binaryType));\n                    state = 0 /* READ_HEADER */;\n                }\n                if (expectedLength === 0 || expectedLength > maxPayload) {\n                    controller.enqueue(ERROR_PACKET);\n                    break;\n                }\n            }\n        }\n    });\n}\nexport const protocol = 4;\nexport { encodePacket, encodePayload, decodePacket, decodePayload };\n", "/**\n * Initialize a new `Emitter`.\n *\n * @api public\n */\n\nexport function Emitter(obj) {\n  if (obj) return mixin(obj);\n}\n\n/**\n * Mixin the emitter properties.\n *\n * @param {Object} obj\n * @return {Object}\n * @api private\n */\n\nfunction mixin(obj) {\n  for (var key in Emitter.prototype) {\n    obj[key] = Emitter.prototype[key];\n  }\n  return obj;\n}\n\n/**\n * Listen on the given `event` with `fn`.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.on =\nEmitter.prototype.addEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])\n    .push(fn);\n  return this;\n};\n\n/**\n * Adds an `event` listener that will be invoked a single\n * time then automatically removed.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.once = function(event, fn){\n  function on() {\n    this.off(event, on);\n    fn.apply(this, arguments);\n  }\n\n  on.fn = fn;\n  this.on(event, on);\n  return this;\n};\n\n/**\n * Remove the given callback for `event` or all\n * registered callbacks.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.off =\nEmitter.prototype.removeListener =\nEmitter.prototype.removeAllListeners =\nEmitter.prototype.removeEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n\n  // all\n  if (0 == arguments.length) {\n    this._callbacks = {};\n    return this;\n  }\n\n  // specific event\n  var callbacks = this._callbacks['$' + event];\n  if (!callbacks) return this;\n\n  // remove all handlers\n  if (1 == arguments.length) {\n    delete this._callbacks['$' + event];\n    return this;\n  }\n\n  // remove specific handler\n  var cb;\n  for (var i = 0; i < callbacks.length; i++) {\n    cb = callbacks[i];\n    if (cb === fn || cb.fn === fn) {\n      callbacks.splice(i, 1);\n      break;\n    }\n  }\n\n  // Remove event specific arrays for event types that no\n  // one is subscribed for to avoid memory leak.\n  if (callbacks.length === 0) {\n    delete this._callbacks['$' + event];\n  }\n\n  return this;\n};\n\n/**\n * Emit `event` with the given args.\n *\n * @param {String} event\n * @param {Mixed} ...\n * @return {Emitter}\n */\n\nEmitter.prototype.emit = function(event){\n  this._callbacks = this._callbacks || {};\n\n  var args = new Array(arguments.length - 1)\n    , callbacks = this._callbacks['$' + event];\n\n  for (var i = 1; i < arguments.length; i++) {\n    args[i - 1] = arguments[i];\n  }\n\n  if (callbacks) {\n    callbacks = callbacks.slice(0);\n    for (var i = 0, len = callbacks.length; i < len; ++i) {\n      callbacks[i].apply(this, args);\n    }\n  }\n\n  return this;\n};\n\n// alias used for reserved events (protected method)\nEmitter.prototype.emitReserved = Emitter.prototype.emit;\n\n/**\n * Return array of callbacks for `event`.\n *\n * @param {String} event\n * @return {Array}\n * @api public\n */\n\nEmitter.prototype.listeners = function(event){\n  this._callbacks = this._callbacks || {};\n  return this._callbacks['$' + event] || [];\n};\n\n/**\n * Check if this emitter has `event` handlers.\n *\n * @param {String} event\n * @return {Boolean}\n * @api public\n */\n\nEmitter.prototype.hasListeners = function(event){\n  return !! this.listeners(event).length;\n};\n", "export const globalThisShim = (() => {\n    if (typeof self !== \"undefined\") {\n        return self;\n    }\n    else if (typeof window !== \"undefined\") {\n        return window;\n    }\n    else {\n        return Function(\"return this\")();\n    }\n})();\n", "import { globalThisShim as globalThis } from \"./globalThis.js\";\nexport function pick(obj, ...attr) {\n    return attr.reduce((acc, k) => {\n        if (obj.hasOwnProperty(k)) {\n            acc[k] = obj[k];\n        }\n        return acc;\n    }, {});\n}\n// Keep a reference to the real timeout functions so they can be used when overridden\nconst NATIVE_SET_TIMEOUT = globalThis.setTimeout;\nconst NATIVE_CLEAR_TIMEOUT = globalThis.clearTimeout;\nexport function installTimerFunctions(obj, opts) {\n    if (opts.useNativeTimers) {\n        obj.setTimeoutFn = NATIVE_SET_TIMEOUT.bind(globalThis);\n        obj.clearTimeoutFn = NATIVE_CLEAR_TIMEOUT.bind(globalThis);\n    }\n    else {\n        obj.setTimeoutFn = globalThis.setTimeout.bind(globalThis);\n        obj.clearTimeoutFn = globalThis.clearTimeout.bind(globalThis);\n    }\n}\n// base64 encoded buffers are about 33% bigger (https://en.wikipedia.org/wiki/Base64)\nconst BASE64_OVERHEAD = 1.33;\n// we could also have used `new Blob([obj]).size`, but it isn't supported in IE9\nexport function byteLength(obj) {\n    if (typeof obj === \"string\") {\n        return utf8Length(obj);\n    }\n    // arraybuffer or blob\n    return Math.ceil((obj.byteLength || obj.size) * BASE64_OVERHEAD);\n}\nfunction utf8Length(str) {\n    let c = 0, length = 0;\n    for (let i = 0, l = str.length; i < l; i++) {\n        c = str.charCodeAt(i);\n        if (c < 0x80) {\n            length += 1;\n        }\n        else if (c < 0x800) {\n            length += 2;\n        }\n        else if (c < 0xd800 || c >= 0xe000) {\n            length += 3;\n        }\n        else {\n            i++;\n            length += 4;\n        }\n    }\n    return length;\n}\n", "// imported from https://github.com/galkn/querystring\n/**\n * Compiles a querystring\n * Returns string representation of the object\n *\n * @param {Object}\n * @api private\n */\nexport function encode(obj) {\n    let str = '';\n    for (let i in obj) {\n        if (obj.hasOwnProperty(i)) {\n            if (str.length)\n                str += '&';\n            str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);\n        }\n    }\n    return str;\n}\n/**\n * Parses a simple querystring into an object\n *\n * @param {String} qs\n * @api private\n */\nexport function decode(qs) {\n    let qry = {};\n    let pairs = qs.split('&');\n    for (let i = 0, l = pairs.length; i < l; i++) {\n        let pair = pairs[i].split('=');\n        qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);\n    }\n    return qry;\n}\n", "import { decodePacket } from \"engine.io-parser\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions } from \"./util.js\";\nimport { encode } from \"./contrib/parseqs.js\";\nexport class TransportError extends Error {\n    constructor(reason, description, context) {\n        super(reason);\n        this.description = description;\n        this.context = context;\n        this.type = \"TransportError\";\n    }\n}\nexport class Transport extends Emitter {\n    /**\n     * Transport abstract constructor.\n     *\n     * @param {Object} opts - options\n     * @protected\n     */\n    constructor(opts) {\n        super();\n        this.writable = false;\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.query = opts.query;\n        this.socket = opts.socket;\n    }\n    /**\n     * Emits an error.\n     *\n     * @param {String} reason\n     * @param description\n     * @param context - the error context\n     * @return {Transport} for chaining\n     * @protected\n     */\n    onError(reason, description, context) {\n        super.emitReserved(\"error\", new TransportError(reason, description, context));\n        return this;\n    }\n    /**\n     * Opens the transport.\n     */\n    open() {\n        this.readyState = \"opening\";\n        this.doOpen();\n        return this;\n    }\n    /**\n     * Closes the transport.\n     */\n    close() {\n        if (this.readyState === \"opening\" || this.readyState === \"open\") {\n            this.doClose();\n            this.onClose();\n        }\n        return this;\n    }\n    /**\n     * Sends multiple packets.\n     *\n     * @param {Array} packets\n     */\n    send(packets) {\n        if (this.readyState === \"open\") {\n            this.write(packets);\n        }\n        else {\n            // this might happen if the transport was silently closed in the beforeunload event handler\n        }\n    }\n    /**\n     * Called upon open\n     *\n     * @protected\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        this.writable = true;\n        super.emitReserved(\"open\");\n    }\n    /**\n     * Called with data.\n     *\n     * @param {String} data\n     * @protected\n     */\n    onData(data) {\n        const packet = decodePacket(data, this.socket.binaryType);\n        this.onPacket(packet);\n    }\n    /**\n     * Called with a decoded packet.\n     *\n     * @protected\n     */\n    onPacket(packet) {\n        super.emitReserved(\"packet\", packet);\n    }\n    /**\n     * Called upon close.\n     *\n     * @protected\n     */\n    onClose(details) {\n        this.readyState = \"closed\";\n        super.emitReserved(\"close\", details);\n    }\n    /**\n     * Pauses the transport, in order not to lose packets during an upgrade.\n     *\n     * @param onPause\n     */\n    pause(onPause) { }\n    createUri(schema, query = {}) {\n        return (schema +\n            \"://\" +\n            this._hostname() +\n            this._port() +\n            this.opts.path +\n            this._query(query));\n    }\n    _hostname() {\n        const hostname = this.opts.hostname;\n        return hostname.indexOf(\":\") === -1 ? hostname : \"[\" + hostname + \"]\";\n    }\n    _port() {\n        if (this.opts.port &&\n            ((this.opts.secure && Number(this.opts.port !== 443)) ||\n                (!this.opts.secure && Number(this.opts.port) !== 80))) {\n            return \":\" + this.opts.port;\n        }\n        else {\n            return \"\";\n        }\n    }\n    _query(query) {\n        const encodedQuery = encode(query);\n        return encodedQuery.length ? \"?\" + encodedQuery : \"\";\n    }\n}\n", "// imported from https://github.com/unshiftio/yeast\n'use strict';\nconst alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split(''), length = 64, map = {};\nlet seed = 0, i = 0, prev;\n/**\n * Return a string representing the specified number.\n *\n * @param {Number} num The number to convert.\n * @returns {String} The string representation of the number.\n * @api public\n */\nexport function encode(num) {\n    let encoded = '';\n    do {\n        encoded = alphabet[num % length] + encoded;\n        num = Math.floor(num / length);\n    } while (num > 0);\n    return encoded;\n}\n/**\n * Return the integer value specified by the given string.\n *\n * @param {String} str The string to convert.\n * @returns {Number} The integer value represented by the string.\n * @api public\n */\nexport function decode(str) {\n    let decoded = 0;\n    for (i = 0; i < str.length; i++) {\n        decoded = decoded * length + map[str.charAt(i)];\n    }\n    return decoded;\n}\n/**\n * Yeast: A tiny growing id generator.\n *\n * @returns {String} A unique id.\n * @api public\n */\nexport function yeast() {\n    const now = encode(+new Date());\n    if (now !== prev)\n        return seed = 0, prev = now;\n    return now + '.' + encode(seed++);\n}\n//\n// Map each character to its index.\n//\nfor (; i < length; i++)\n    map[alphabet[i]] = i;\n", "// imported from https://github.com/component/has-cors\nlet value = false;\ntry {\n    value = typeof XMLHttpRequest !== 'undefined' &&\n        'withCredentials' in new XMLHttpRequest();\n}\ncatch (err) {\n    // if XMLHttp support is disabled in IE then it will throw\n    // when trying to create\n}\nexport const hasCORS = value;\n", "// browser shim for xmlhttprequest module\nimport { hasCORS } from \"../contrib/has-cors.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nexport function XHR(opts) {\n    const xdomain = opts.xdomain;\n    // XMLHttpRequest can be disabled on IE\n    try {\n        if (\"undefined\" !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {\n            return new XMLHttpRequest();\n        }\n    }\n    catch (e) { }\n    if (!xdomain) {\n        try {\n            return new globalThis[[\"Active\"].concat(\"Object\").join(\"X\")](\"Microsoft.XMLHTTP\");\n        }\n        catch (e) { }\n    }\n}\nexport function createCookieJar() { }\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { encodePayload, decodePayload } from \"engine.io-parser\";\nimport { createCookieJar, XHR as XMLHttpRequest, } from \"./xmlhttprequest.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions, pick } from \"../util.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nfunction empty() { }\nconst hasXHR2 = (function () {\n    const xhr = new XMLHttpRequest({\n        xdomain: false,\n    });\n    return null != xhr.responseType;\n})();\nexport class Polling extends Transport {\n    /**\n     * XHR Polling constructor.\n     *\n     * @param {Object} opts\n     * @package\n     */\n    constructor(opts) {\n        super(opts);\n        this.polling = false;\n        if (typeof location !== \"undefined\") {\n            const isSSL = \"https:\" === location.protocol;\n            let port = location.port;\n            // some user agents have empty `location.port`\n            if (!port) {\n                port = isSSL ? \"443\" : \"80\";\n            }\n            this.xd =\n                (typeof location !== \"undefined\" &&\n                    opts.hostname !== location.hostname) ||\n                    port !== opts.port;\n        }\n        /**\n         * XHR supports binary\n         */\n        const forceBase64 = opts && opts.forceBase64;\n        this.supportsBinary = hasXHR2 && !forceBase64;\n        if (this.opts.withCredentials) {\n            this.cookieJar = createCookieJar();\n        }\n    }\n    get name() {\n        return \"polling\";\n    }\n    /**\n     * Opens the socket (triggers polling). We write a PING message to determine\n     * when the transport is open.\n     *\n     * @protected\n     */\n    doOpen() {\n        this.poll();\n    }\n    /**\n     * Pauses polling.\n     *\n     * @param {Function} onPause - callback upon buffers are flushed and transport is paused\n     * @package\n     */\n    pause(onPause) {\n        this.readyState = \"pausing\";\n        const pause = () => {\n            this.readyState = \"paused\";\n            onPause();\n        };\n        if (this.polling || !this.writable) {\n            let total = 0;\n            if (this.polling) {\n                total++;\n                this.once(\"pollComplete\", function () {\n                    --total || pause();\n                });\n            }\n            if (!this.writable) {\n                total++;\n                this.once(\"drain\", function () {\n                    --total || pause();\n                });\n            }\n        }\n        else {\n            pause();\n        }\n    }\n    /**\n     * Starts polling cycle.\n     *\n     * @private\n     */\n    poll() {\n        this.polling = true;\n        this.doPoll();\n        this.emitReserved(\"poll\");\n    }\n    /**\n     * Overloads onData to detect payloads.\n     *\n     * @protected\n     */\n    onData(data) {\n        const callback = (packet) => {\n            // if its the first message we consider the transport open\n            if (\"opening\" === this.readyState && packet.type === \"open\") {\n                this.onOpen();\n            }\n            // if its a close packet, we close the ongoing requests\n            if (\"close\" === packet.type) {\n                this.onClose({ description: \"transport closed by the server\" });\n                return false;\n            }\n            // otherwise bypass onData and handle the message\n            this.onPacket(packet);\n        };\n        // decode payload\n        decodePayload(data, this.socket.binaryType).forEach(callback);\n        // if an event did not trigger closing\n        if (\"closed\" !== this.readyState) {\n            // if we got data we're not polling\n            this.polling = false;\n            this.emitReserved(\"pollComplete\");\n            if (\"open\" === this.readyState) {\n                this.poll();\n            }\n            else {\n            }\n        }\n    }\n    /**\n     * For polling, send a close packet.\n     *\n     * @protected\n     */\n    doClose() {\n        const close = () => {\n            this.write([{ type: \"close\" }]);\n        };\n        if (\"open\" === this.readyState) {\n            close();\n        }\n        else {\n            // in case we're trying to close while\n            // handshaking is in progress (GH-164)\n            this.once(\"open\", close);\n        }\n    }\n    /**\n     * Writes a packets payload.\n     *\n     * @param {Array} packets - data packets\n     * @protected\n     */\n    write(packets) {\n        this.writable = false;\n        encodePayload(packets, (data) => {\n            this.doWrite(data, () => {\n                this.writable = true;\n                this.emitReserved(\"drain\");\n            });\n        });\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"https\" : \"http\";\n        const query = this.query || {};\n        // cache busting is forced\n        if (false !== this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        if (!this.supportsBinary && !query.sid) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Creates a request.\n     *\n     * @param {String} method\n     * @private\n     */\n    request(opts = {}) {\n        Object.assign(opts, { xd: this.xd, cookieJar: this.cookieJar }, this.opts);\n        return new Request(this.uri(), opts);\n    }\n    /**\n     * Sends data.\n     *\n     * @param {String} data to send.\n     * @param {Function} called upon flush.\n     * @private\n     */\n    doWrite(data, fn) {\n        const req = this.request({\n            method: \"POST\",\n            data: data,\n        });\n        req.on(\"success\", fn);\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr post error\", xhrStatus, context);\n        });\n    }\n    /**\n     * Starts a poll cycle.\n     *\n     * @private\n     */\n    doPoll() {\n        const req = this.request();\n        req.on(\"data\", this.onData.bind(this));\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr poll error\", xhrStatus, context);\n        });\n        this.pollXhr = req;\n    }\n}\nexport class Request extends Emitter {\n    /**\n     * Request constructor\n     *\n     * @param {Object} options\n     * @package\n     */\n    constructor(uri, opts) {\n        super();\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.method = opts.method || \"GET\";\n        this.uri = uri;\n        this.data = undefined !== opts.data ? opts.data : null;\n        this.create();\n    }\n    /**\n     * Creates the XHR object and sends the request.\n     *\n     * @private\n     */\n    create() {\n        var _a;\n        const opts = pick(this.opts, \"agent\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"autoUnref\");\n        opts.xdomain = !!this.opts.xd;\n        const xhr = (this.xhr = new XMLHttpRequest(opts));\n        try {\n            xhr.open(this.method, this.uri, true);\n            try {\n                if (this.opts.extraHeaders) {\n                    xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);\n                    for (let i in this.opts.extraHeaders) {\n                        if (this.opts.extraHeaders.hasOwnProperty(i)) {\n                            xhr.setRequestHeader(i, this.opts.extraHeaders[i]);\n                        }\n                    }\n                }\n            }\n            catch (e) { }\n            if (\"POST\" === this.method) {\n                try {\n                    xhr.setRequestHeader(\"Content-type\", \"text/plain;charset=UTF-8\");\n                }\n                catch (e) { }\n            }\n            try {\n                xhr.setRequestHeader(\"Accept\", \"*/*\");\n            }\n            catch (e) { }\n            (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.addCookies(xhr);\n            // ie6 check\n            if (\"withCredentials\" in xhr) {\n                xhr.withCredentials = this.opts.withCredentials;\n            }\n            if (this.opts.requestTimeout) {\n                xhr.timeout = this.opts.requestTimeout;\n            }\n            xhr.onreadystatechange = () => {\n                var _a;\n                if (xhr.readyState === 3) {\n                    (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.parseCookies(xhr);\n                }\n                if (4 !== xhr.readyState)\n                    return;\n                if (200 === xhr.status || 1223 === xhr.status) {\n                    this.onLoad();\n                }\n                else {\n                    // make sure the `error` event handler that's user-set\n                    // does not throw in the same tick and gets caught here\n                    this.setTimeoutFn(() => {\n                        this.onError(typeof xhr.status === \"number\" ? xhr.status : 0);\n                    }, 0);\n                }\n            };\n            xhr.send(this.data);\n        }\n        catch (e) {\n            // Need to defer since .create() is called directly from the constructor\n            // and thus the 'error' event can only be only bound *after* this exception\n            // occurs.  Therefore, also, we cannot throw here at all.\n            this.setTimeoutFn(() => {\n                this.onError(e);\n            }, 0);\n            return;\n        }\n        if (typeof document !== \"undefined\") {\n            this.index = Request.requestsCount++;\n            Request.requests[this.index] = this;\n        }\n    }\n    /**\n     * Called upon error.\n     *\n     * @private\n     */\n    onError(err) {\n        this.emitReserved(\"error\", err, this.xhr);\n        this.cleanup(true);\n    }\n    /**\n     * Cleans up house.\n     *\n     * @private\n     */\n    cleanup(fromError) {\n        if (\"undefined\" === typeof this.xhr || null === this.xhr) {\n            return;\n        }\n        this.xhr.onreadystatechange = empty;\n        if (fromError) {\n            try {\n                this.xhr.abort();\n            }\n            catch (e) { }\n        }\n        if (typeof document !== \"undefined\") {\n            delete Request.requests[this.index];\n        }\n        this.xhr = null;\n    }\n    /**\n     * Called upon load.\n     *\n     * @private\n     */\n    onLoad() {\n        const data = this.xhr.responseText;\n        if (data !== null) {\n            this.emitReserved(\"data\", data);\n            this.emitReserved(\"success\");\n            this.cleanup();\n        }\n    }\n    /**\n     * Aborts the request.\n     *\n     * @package\n     */\n    abort() {\n        this.cleanup();\n    }\n}\nRequest.requestsCount = 0;\nRequest.requests = {};\n/**\n * Aborts pending requests when unloading the window. This is needed to prevent\n * memory leaks (e.g. when using IE) and to ensure that no spurious error is\n * emitted.\n */\nif (typeof document !== \"undefined\") {\n    // @ts-ignore\n    if (typeof attachEvent === \"function\") {\n        // @ts-ignore\n        attachEvent(\"onunload\", unloadHandler);\n    }\n    else if (typeof addEventListener === \"function\") {\n        const terminationEvent = \"onpagehide\" in globalThis ? \"pagehide\" : \"unload\";\n        addEventListener(terminationEvent, unloadHandler, false);\n    }\n}\nfunction unloadHandler() {\n    for (let i in Request.requests) {\n        if (Request.requests.hasOwnProperty(i)) {\n            Request.requests[i].abort();\n        }\n    }\n}\n", "import { globalThisShim as globalThis } from \"../globalThis.js\";\nexport const nextTick = (() => {\n    const isPromiseAvailable = typeof Promise === \"function\" && typeof Promise.resolve === \"function\";\n    if (isPromiseAvailable) {\n        return (cb) => Promise.resolve().then(cb);\n    }\n    else {\n        return (cb, setTimeoutFn) => setTimeoutFn(cb, 0);\n    }\n})();\nexport const WebSocket = globalThis.WebSocket || globalThis.MozWebSocket;\nexport const usingBrowserWebSocket = true;\nexport const defaultBinaryType = \"arraybuffer\";\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { pick } from \"../util.js\";\nimport { nextTick, usingBrowserWebSocket, WebSocket, } from \"./websocket-constructor.js\";\nimport { encodePacket } from \"engine.io-parser\";\n// detect ReactNative environment\nconst isReactNative = typeof navigator !== \"undefined\" &&\n    typeof navigator.product === \"string\" &&\n    navigator.product.toLowerCase() === \"reactnative\";\nexport class WS extends Transport {\n    /**\n     * WebSocket transport constructor.\n     *\n     * @param {Object} opts - connection options\n     * @protected\n     */\n    constructor(opts) {\n        super(opts);\n        this.supportsBinary = !opts.forceBase64;\n    }\n    get name() {\n        return \"websocket\";\n    }\n    doOpen() {\n        if (!this.check()) {\n            // let probe timeout\n            return;\n        }\n        const uri = this.uri();\n        const protocols = this.opts.protocols;\n        // React Native only supports the 'headers' option, and will print a warning if anything else is passed\n        const opts = isReactNative\n            ? {}\n            : pick(this.opts, \"agent\", \"perMessageDeflate\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"localAddress\", \"protocolVersion\", \"origin\", \"maxPayload\", \"family\", \"checkServerIdentity\");\n        if (this.opts.extraHeaders) {\n            opts.headers = this.opts.extraHeaders;\n        }\n        try {\n            this.ws =\n                usingBrowserWebSocket && !isReactNative\n                    ? protocols\n                        ? new WebSocket(uri, protocols)\n                        : new WebSocket(uri)\n                    : new WebSocket(uri, protocols, opts);\n        }\n        catch (err) {\n            return this.emitReserved(\"error\", err);\n        }\n        this.ws.binaryType = this.socket.binaryType;\n        this.addEventListeners();\n    }\n    /**\n     * Adds event listeners to the socket\n     *\n     * @private\n     */\n    addEventListeners() {\n        this.ws.onopen = () => {\n            if (this.opts.autoUnref) {\n                this.ws._socket.unref();\n            }\n            this.onOpen();\n        };\n        this.ws.onclose = (closeEvent) => this.onClose({\n            description: \"websocket connection closed\",\n            context: closeEvent,\n        });\n        this.ws.onmessage = (ev) => this.onData(ev.data);\n        this.ws.onerror = (e) => this.onError(\"websocket error\", e);\n    }\n    write(packets) {\n        this.writable = false;\n        // encodePacket efficient as it uses WS framing\n        // no need for encodePayload\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            encodePacket(packet, this.supportsBinary, (data) => {\n                // always create a new object (GH-437)\n                const opts = {};\n                if (!usingBrowserWebSocket) {\n                    if (packet.options) {\n                        opts.compress = packet.options.compress;\n                    }\n                    if (this.opts.perMessageDeflate) {\n                        const len = \n                        // @ts-ignore\n                        \"string\" === typeof data ? Buffer.byteLength(data) : data.length;\n                        if (len < this.opts.perMessageDeflate.threshold) {\n                            opts.compress = false;\n                        }\n                    }\n                }\n                // Sometimes the websocket has already been closed but the browser didn't\n                // have a chance of informing us about it yet, in that case send will\n                // throw an error\n                try {\n                    if (usingBrowserWebSocket) {\n                        // TypeError is thrown when passing the second argument on Safari\n                        this.ws.send(data);\n                    }\n                    else {\n                        this.ws.send(data, opts);\n                    }\n                }\n                catch (e) {\n                }\n                if (lastPacket) {\n                    // fake drain\n                    // defer to next tick to allow Socket to clear writeBuffer\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        if (typeof this.ws !== \"undefined\") {\n            this.ws.close();\n            this.ws = null;\n        }\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"wss\" : \"ws\";\n        const query = this.query || {};\n        // append timestamp to URI\n        if (this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        // communicate binary support capabilities\n        if (!this.supportsBinary) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Feature detection for WebSocket.\n     *\n     * @return {Boolean} whether this transport is available.\n     * @private\n     */\n    check() {\n        return !!WebSocket;\n    }\n}\n", "import { Transport } from \"../transport.js\";\nimport { nextTick } from \"./websocket-constructor.js\";\nimport { createPacketDecoderStream, createPacketEncoderStream, } from \"engine.io-parser\";\nexport class WT extends Transport {\n    get name() {\n        return \"webtransport\";\n    }\n    doOpen() {\n        // @ts-ignore\n        if (typeof WebTransport !== \"function\") {\n            return;\n        }\n        // @ts-ignore\n        this.transport = new WebTransport(this.createUri(\"https\"), this.opts.transportOptions[this.name]);\n        this.transport.closed\n            .then(() => {\n            this.onClose();\n        })\n            .catch((err) => {\n            this.onError(\"webtransport error\", err);\n        });\n        // note: we could have used async/await, but that would require some additional polyfills\n        this.transport.ready.then(() => {\n            this.transport.createBidirectionalStream().then((stream) => {\n                const decoderStream = createPacketDecoderStream(Number.MAX_SAFE_INTEGER, this.socket.binaryType);\n                const reader = stream.readable.pipeThrough(decoderStream).getReader();\n                const encoderStream = createPacketEncoderStream();\n                encoderStream.readable.pipeTo(stream.writable);\n                this.writer = encoderStream.writable.getWriter();\n                const read = () => {\n                    reader\n                        .read()\n                        .then(({ done, value }) => {\n                        if (done) {\n                            return;\n                        }\n                        this.onPacket(value);\n                        read();\n                    })\n                        .catch((err) => {\n                    });\n                };\n                read();\n                const packet = { type: \"open\" };\n                if (this.query.sid) {\n                    packet.data = `{\"sid\":\"${this.query.sid}\"}`;\n                }\n                this.writer.write(packet).then(() => this.onOpen());\n            });\n        });\n    }\n    write(packets) {\n        this.writable = false;\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            this.writer.write(packet).then(() => {\n                if (lastPacket) {\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        var _a;\n        (_a = this.transport) === null || _a === void 0 ? void 0 : _a.close();\n    }\n}\n", "import { Polling } from \"./polling.js\";\nimport { WS } from \"./websocket.js\";\nimport { WT } from \"./webtransport.js\";\nexport const transports = {\n    websocket: WS,\n    webtransport: WT,\n    polling: Polling,\n};\n", "// imported from https://github.com/galkn/parseuri\n/**\n * Parses a URI\n *\n * Note: we could also have used the built-in URL object, but it isn't supported on all platforms.\n *\n * See:\n * - https://developer.mozilla.org/en-US/docs/Web/API/URL\n * - https://caniuse.com/url\n * - https://www.rfc-editor.org/rfc/rfc3986#appendix-B\n *\n * History of the parse() method:\n * - first commit: https://github.com/socketio/socket.io-client/commit/4ee1d5d94b3906a9c052b459f1a818b15f38f91c\n * - export into its own module: https://github.com/socketio/engine.io-client/commit/de2c561e4564efeb78f1bdb1ba39ef81b2822cb3\n * - reimport: https://github.com/socketio/engine.io-client/commit/df32277c3f6d622eec5ed09f493cae3f3391d242\n *\n * @author Steven Levithan <stevenlevithan.com> (MIT license)\n * @api private\n */\nconst re = /^(?:(?![^:@\\/?#]+:[^:@\\/]*@)(http|https|ws|wss):\\/\\/)?((?:(([^:@\\/?#]*)(?::([^:@\\/?#]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\\/?#]*)(?::(\\d*))?)(((\\/(?:[^?#](?![^?#\\/]*\\.[^?#\\/.]+(?:[?#]|$)))*\\/?)?([^?#\\/]*))(?:\\?([^#]*))?(?:#(.*))?)/;\nconst parts = [\n    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'\n];\nexport function parse(str) {\n    if (str.length > 2000) {\n        throw \"URI too long\";\n    }\n    const src = str, b = str.indexOf('['), e = str.indexOf(']');\n    if (b != -1 && e != -1) {\n        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);\n    }\n    let m = re.exec(str || ''), uri = {}, i = 14;\n    while (i--) {\n        uri[parts[i]] = m[i] || '';\n    }\n    if (b != -1 && e != -1) {\n        uri.source = src;\n        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');\n        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');\n        uri.ipv6uri = true;\n    }\n    uri.pathNames = pathNames(uri, uri['path']);\n    uri.queryKey = queryKey(uri, uri['query']);\n    return uri;\n}\nfunction pathNames(obj, path) {\n    const regx = /\\/{2,9}/g, names = path.replace(regx, \"/\").split(\"/\");\n    if (path.slice(0, 1) == '/' || path.length === 0) {\n        names.splice(0, 1);\n    }\n    if (path.slice(-1) == '/') {\n        names.splice(names.length - 1, 1);\n    }\n    return names;\n}\nfunction queryKey(uri, query) {\n    const data = {};\n    query.replace(/(?:^|&)([^&=]*)=?([^&]*)/g, function ($0, $1, $2) {\n        if ($1) {\n            data[$1] = $2;\n        }\n    });\n    return data;\n}\n", "import { transports } from \"./transports/index.js\";\nimport { installTimerFunctions, byteLength } from \"./util.js\";\nimport { decode } from \"./contrib/parseqs.js\";\nimport { parse } from \"./contrib/parseuri.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { protocol } from \"engine.io-parser\";\nimport { defaultBinaryType } from \"./transports/websocket-constructor.js\";\nexport class Socket extends Emitter {\n    /**\n     * Socket constructor.\n     *\n     * @param {String|Object} uri - uri or options\n     * @param {Object} opts - options\n     */\n    constructor(uri, opts = {}) {\n        super();\n        this.binaryType = defaultBinaryType;\n        this.writeBuffer = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = null;\n        }\n        if (uri) {\n            uri = parse(uri);\n            opts.hostname = uri.host;\n            opts.secure = uri.protocol === \"https\" || uri.protocol === \"wss\";\n            opts.port = uri.port;\n            if (uri.query)\n                opts.query = uri.query;\n        }\n        else if (opts.host) {\n            opts.hostname = parse(opts.host).host;\n        }\n        installTimerFunctions(this, opts);\n        this.secure =\n            null != opts.secure\n                ? opts.secure\n                : typeof location !== \"undefined\" && \"https:\" === location.protocol;\n        if (opts.hostname && !opts.port) {\n            // if no port is specified manually, use the protocol default\n            opts.port = this.secure ? \"443\" : \"80\";\n        }\n        this.hostname =\n            opts.hostname ||\n                (typeof location !== \"undefined\" ? location.hostname : \"localhost\");\n        this.port =\n            opts.port ||\n                (typeof location !== \"undefined\" && location.port\n                    ? location.port\n                    : this.secure\n                        ? \"443\"\n                        : \"80\");\n        this.transports = opts.transports || [\n            \"polling\",\n            \"websocket\",\n            \"webtransport\",\n        ];\n        this.writeBuffer = [];\n        this.prevBufferLen = 0;\n        this.opts = Object.assign({\n            path: \"/engine.io\",\n            agent: false,\n            withCredentials: false,\n            upgrade: true,\n            timestampParam: \"t\",\n            rememberUpgrade: false,\n            addTrailingSlash: true,\n            rejectUnauthorized: true,\n            perMessageDeflate: {\n                threshold: 1024,\n            },\n            transportOptions: {},\n            closeOnBeforeunload: false,\n        }, opts);\n        this.opts.path =\n            this.opts.path.replace(/\\/$/, \"\") +\n                (this.opts.addTrailingSlash ? \"/\" : \"\");\n        if (typeof this.opts.query === \"string\") {\n            this.opts.query = decode(this.opts.query);\n        }\n        // set on handshake\n        this.id = null;\n        this.upgrades = null;\n        this.pingInterval = null;\n        this.pingTimeout = null;\n        // set on heartbeat\n        this.pingTimeoutTimer = null;\n        if (typeof addEventListener === \"function\") {\n            if (this.opts.closeOnBeforeunload) {\n                // Firefox closes the connection when the \"beforeunload\" event is emitted but not Chrome. This event listener\n                // ensures every browser behaves the same (no \"disconnect\" event at the Socket.IO level when the page is\n                // closed/reloaded)\n                this.beforeunloadEventListener = () => {\n                    if (this.transport) {\n                        // silently close the transport\n                        this.transport.removeAllListeners();\n                        this.transport.close();\n                    }\n                };\n                addEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n            }\n            if (this.hostname !== \"localhost\") {\n                this.offlineEventListener = () => {\n                    this.onClose(\"transport close\", {\n                        description: \"network connection lost\",\n                    });\n                };\n                addEventListener(\"offline\", this.offlineEventListener, false);\n            }\n        }\n        this.open();\n    }\n    /**\n     * Creates transport of the given type.\n     *\n     * @param {String} name - transport name\n     * @return {Transport}\n     * @private\n     */\n    createTransport(name) {\n        const query = Object.assign({}, this.opts.query);\n        // append engine.io protocol identifier\n        query.EIO = protocol;\n        // transport name\n        query.transport = name;\n        // session id if we already have one\n        if (this.id)\n            query.sid = this.id;\n        const opts = Object.assign({}, this.opts, {\n            query,\n            socket: this,\n            hostname: this.hostname,\n            secure: this.secure,\n            port: this.port,\n        }, this.opts.transportOptions[name]);\n        return new transports[name](opts);\n    }\n    /**\n     * Initializes transport to use and starts probe.\n     *\n     * @private\n     */\n    open() {\n        let transport;\n        if (this.opts.rememberUpgrade &&\n            Socket.priorWebsocketSuccess &&\n            this.transports.indexOf(\"websocket\") !== -1) {\n            transport = \"websocket\";\n        }\n        else if (0 === this.transports.length) {\n            // Emit error on next tick so it can be listened to\n            this.setTimeoutFn(() => {\n                this.emitReserved(\"error\", \"No transports available\");\n            }, 0);\n            return;\n        }\n        else {\n            transport = this.transports[0];\n        }\n        this.readyState = \"opening\";\n        // Retry with the next transport if the transport is disabled (jsonp: false)\n        try {\n            transport = this.createTransport(transport);\n        }\n        catch (e) {\n            this.transports.shift();\n            this.open();\n            return;\n        }\n        transport.open();\n        this.setTransport(transport);\n    }\n    /**\n     * Sets the current transport. Disables the existing one (if any).\n     *\n     * @private\n     */\n    setTransport(transport) {\n        if (this.transport) {\n            this.transport.removeAllListeners();\n        }\n        // set up transport\n        this.transport = transport;\n        // set up transport listeners\n        transport\n            .on(\"drain\", this.onDrain.bind(this))\n            .on(\"packet\", this.onPacket.bind(this))\n            .on(\"error\", this.onError.bind(this))\n            .on(\"close\", (reason) => this.onClose(\"transport close\", reason));\n    }\n    /**\n     * Probes a transport.\n     *\n     * @param {String} name - transport name\n     * @private\n     */\n    probe(name) {\n        let transport = this.createTransport(name);\n        let failed = false;\n        Socket.priorWebsocketSuccess = false;\n        const onTransportOpen = () => {\n            if (failed)\n                return;\n            transport.send([{ type: \"ping\", data: \"probe\" }]);\n            transport.once(\"packet\", (msg) => {\n                if (failed)\n                    return;\n                if (\"pong\" === msg.type && \"probe\" === msg.data) {\n                    this.upgrading = true;\n                    this.emitReserved(\"upgrading\", transport);\n                    if (!transport)\n                        return;\n                    Socket.priorWebsocketSuccess = \"websocket\" === transport.name;\n                    this.transport.pause(() => {\n                        if (failed)\n                            return;\n                        if (\"closed\" === this.readyState)\n                            return;\n                        cleanup();\n                        this.setTransport(transport);\n                        transport.send([{ type: \"upgrade\" }]);\n                        this.emitReserved(\"upgrade\", transport);\n                        transport = null;\n                        this.upgrading = false;\n                        this.flush();\n                    });\n                }\n                else {\n                    const err = new Error(\"probe error\");\n                    // @ts-ignore\n                    err.transport = transport.name;\n                    this.emitReserved(\"upgradeError\", err);\n                }\n            });\n        };\n        function freezeTransport() {\n            if (failed)\n                return;\n            // Any callback called by transport should be ignored since now\n            failed = true;\n            cleanup();\n            transport.close();\n            transport = null;\n        }\n        // Handle any error that happens while probing\n        const onerror = (err) => {\n            const error = new Error(\"probe error: \" + err);\n            // @ts-ignore\n            error.transport = transport.name;\n            freezeTransport();\n            this.emitReserved(\"upgradeError\", error);\n        };\n        function onTransportClose() {\n            onerror(\"transport closed\");\n        }\n        // When the socket is closed while we're probing\n        function onclose() {\n            onerror(\"socket closed\");\n        }\n        // When the socket is upgraded while we're probing\n        function onupgrade(to) {\n            if (transport && to.name !== transport.name) {\n                freezeTransport();\n            }\n        }\n        // Remove all listeners on the transport and on self\n        const cleanup = () => {\n            transport.removeListener(\"open\", onTransportOpen);\n            transport.removeListener(\"error\", onerror);\n            transport.removeListener(\"close\", onTransportClose);\n            this.off(\"close\", onclose);\n            this.off(\"upgrading\", onupgrade);\n        };\n        transport.once(\"open\", onTransportOpen);\n        transport.once(\"error\", onerror);\n        transport.once(\"close\", onTransportClose);\n        this.once(\"close\", onclose);\n        this.once(\"upgrading\", onupgrade);\n        if (this.upgrades.indexOf(\"webtransport\") !== -1 &&\n            name !== \"webtransport\") {\n            // favor WebTransport\n            this.setTimeoutFn(() => {\n                if (!failed) {\n                    transport.open();\n                }\n            }, 200);\n        }\n        else {\n            transport.open();\n        }\n    }\n    /**\n     * Called when connection is deemed open.\n     *\n     * @private\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        Socket.priorWebsocketSuccess = \"websocket\" === this.transport.name;\n        this.emitReserved(\"open\");\n        this.flush();\n        // we check for `readyState` in case an `open`\n        // listener already closed the socket\n        if (\"open\" === this.readyState && this.opts.upgrade) {\n            let i = 0;\n            const l = this.upgrades.length;\n            for (; i < l; i++) {\n                this.probe(this.upgrades[i]);\n            }\n        }\n    }\n    /**\n     * Handles a packet.\n     *\n     * @private\n     */\n    onPacket(packet) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            this.emitReserved(\"packet\", packet);\n            // Socket is live - any packet counts\n            this.emitReserved(\"heartbeat\");\n            this.resetPingTimeout();\n            switch (packet.type) {\n                case \"open\":\n                    this.onHandshake(JSON.parse(packet.data));\n                    break;\n                case \"ping\":\n                    this.sendPacket(\"pong\");\n                    this.emitReserved(\"ping\");\n                    this.emitReserved(\"pong\");\n                    break;\n                case \"error\":\n                    const err = new Error(\"server error\");\n                    // @ts-ignore\n                    err.code = packet.data;\n                    this.onError(err);\n                    break;\n                case \"message\":\n                    this.emitReserved(\"data\", packet.data);\n                    this.emitReserved(\"message\", packet.data);\n                    break;\n            }\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon handshake completion.\n     *\n     * @param {Object} data - handshake obj\n     * @private\n     */\n    onHandshake(data) {\n        this.emitReserved(\"handshake\", data);\n        this.id = data.sid;\n        this.transport.query.sid = data.sid;\n        this.upgrades = this.filterUpgrades(data.upgrades);\n        this.pingInterval = data.pingInterval;\n        this.pingTimeout = data.pingTimeout;\n        this.maxPayload = data.maxPayload;\n        this.onOpen();\n        // In case open handler closes socket\n        if (\"closed\" === this.readyState)\n            return;\n        this.resetPingTimeout();\n    }\n    /**\n     * Sets and resets ping timeout timer based on server pings.\n     *\n     * @private\n     */\n    resetPingTimeout() {\n        this.clearTimeoutFn(this.pingTimeoutTimer);\n        this.pingTimeoutTimer = this.setTimeoutFn(() => {\n            this.onClose(\"ping timeout\");\n        }, this.pingInterval + this.pingTimeout);\n        if (this.opts.autoUnref) {\n            this.pingTimeoutTimer.unref();\n        }\n    }\n    /**\n     * Called on `drain` event\n     *\n     * @private\n     */\n    onDrain() {\n        this.writeBuffer.splice(0, this.prevBufferLen);\n        // setting prevBufferLen = 0 is very important\n        // for example, when upgrading, upgrade packet is sent over,\n        // and a nonzero prevBufferLen could cause problems on `drain`\n        this.prevBufferLen = 0;\n        if (0 === this.writeBuffer.length) {\n            this.emitReserved(\"drain\");\n        }\n        else {\n            this.flush();\n        }\n    }\n    /**\n     * Flush write buffers.\n     *\n     * @private\n     */\n    flush() {\n        if (\"closed\" !== this.readyState &&\n            this.transport.writable &&\n            !this.upgrading &&\n            this.writeBuffer.length) {\n            const packets = this.getWritablePackets();\n            this.transport.send(packets);\n            // keep track of current length of writeBuffer\n            // splice writeBuffer and callbackBuffer on `drain`\n            this.prevBufferLen = packets.length;\n            this.emitReserved(\"flush\");\n        }\n    }\n    /**\n     * Ensure the encoded size of the writeBuffer is below the maxPayload value sent by the server (only for HTTP\n     * long-polling)\n     *\n     * @private\n     */\n    getWritablePackets() {\n        const shouldCheckPayloadSize = this.maxPayload &&\n            this.transport.name === \"polling\" &&\n            this.writeBuffer.length > 1;\n        if (!shouldCheckPayloadSize) {\n            return this.writeBuffer;\n        }\n        let payloadSize = 1; // first packet type\n        for (let i = 0; i < this.writeBuffer.length; i++) {\n            const data = this.writeBuffer[i].data;\n            if (data) {\n                payloadSize += byteLength(data);\n            }\n            if (i > 0 && payloadSize > this.maxPayload) {\n                return this.writeBuffer.slice(0, i);\n            }\n            payloadSize += 2; // separator + packet type\n        }\n        return this.writeBuffer;\n    }\n    /**\n     * Sends a message.\n     *\n     * @param {String} msg - message.\n     * @param {Object} options.\n     * @param {Function} callback function.\n     * @return {Socket} for chaining.\n     */\n    write(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    send(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param {String} type: packet type.\n     * @param {String} data.\n     * @param {Object} options.\n     * @param {Function} fn - callback function.\n     * @private\n     */\n    sendPacket(type, data, options, fn) {\n        if (\"function\" === typeof data) {\n            fn = data;\n            data = undefined;\n        }\n        if (\"function\" === typeof options) {\n            fn = options;\n            options = null;\n        }\n        if (\"closing\" === this.readyState || \"closed\" === this.readyState) {\n            return;\n        }\n        options = options || {};\n        options.compress = false !== options.compress;\n        const packet = {\n            type: type,\n            data: data,\n            options: options,\n        };\n        this.emitReserved(\"packetCreate\", packet);\n        this.writeBuffer.push(packet);\n        if (fn)\n            this.once(\"flush\", fn);\n        this.flush();\n    }\n    /**\n     * Closes the connection.\n     */\n    close() {\n        const close = () => {\n            this.onClose(\"forced close\");\n            this.transport.close();\n        };\n        const cleanupAndClose = () => {\n            this.off(\"upgrade\", cleanupAndClose);\n            this.off(\"upgradeError\", cleanupAndClose);\n            close();\n        };\n        const waitForUpgrade = () => {\n            // wait for upgrade to finish since we can't send packets while pausing a transport\n            this.once(\"upgrade\", cleanupAndClose);\n            this.once(\"upgradeError\", cleanupAndClose);\n        };\n        if (\"opening\" === this.readyState || \"open\" === this.readyState) {\n            this.readyState = \"closing\";\n            if (this.writeBuffer.length) {\n                this.once(\"drain\", () => {\n                    if (this.upgrading) {\n                        waitForUpgrade();\n                    }\n                    else {\n                        close();\n                    }\n                });\n            }\n            else if (this.upgrading) {\n                waitForUpgrade();\n            }\n            else {\n                close();\n            }\n        }\n        return this;\n    }\n    /**\n     * Called upon transport error\n     *\n     * @private\n     */\n    onError(err) {\n        Socket.priorWebsocketSuccess = false;\n        this.emitReserved(\"error\", err);\n        this.onClose(\"transport error\", err);\n    }\n    /**\n     * Called upon transport close.\n     *\n     * @private\n     */\n    onClose(reason, description) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            // clear timers\n            this.clearTimeoutFn(this.pingTimeoutTimer);\n            // stop event from firing again for transport\n            this.transport.removeAllListeners(\"close\");\n            // ensure transport won't stay open\n            this.transport.close();\n            // ignore further transport communication\n            this.transport.removeAllListeners();\n            if (typeof removeEventListener === \"function\") {\n                removeEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n                removeEventListener(\"offline\", this.offlineEventListener, false);\n            }\n            // set ready state\n            this.readyState = \"closed\";\n            // clear session id\n            this.id = null;\n            // emit close event\n            this.emitReserved(\"close\", reason, description);\n            // clean buffers after, so users can still\n            // grab the buffers on `close` event\n            this.writeBuffer = [];\n            this.prevBufferLen = 0;\n        }\n    }\n    /**\n     * Filters upgrades, returning only those matching client transports.\n     *\n     * @param {Array} upgrades - server upgrades\n     * @private\n     */\n    filterUpgrades(upgrades) {\n        const filteredUpgrades = [];\n        let i = 0;\n        const j = upgrades.length;\n        for (; i < j; i++) {\n            if (~this.transports.indexOf(upgrades[i]))\n                filteredUpgrades.push(upgrades[i]);\n        }\n        return filteredUpgrades;\n    }\n}\nSocket.protocol = protocol;\n", "import { Socket } from \"./socket.js\";\nexport { Socket };\nexport const protocol = Socket.protocol;\nexport { Transport, TransportError } from \"./transport.js\";\nexport { transports } from \"./transports/index.js\";\nexport { installTimerFunctions } from \"./util.js\";\nexport { parse } from \"./contrib/parseuri.js\";\nexport { nextTick } from \"./transports/websocket-constructor.js\";\n", "import { parse } from \"engine.io-client\";\n/**\n * URL parser.\n *\n * @param uri - url\n * @param path - the request path of the connection\n * @param loc - An object meant to mimic window.location.\n *        Defaults to window.location.\n * @public\n */\nexport function url(uri, path = \"\", loc) {\n    let obj = uri;\n    // default to window.location\n    loc = loc || (typeof location !== \"undefined\" && location);\n    if (null == uri)\n        uri = loc.protocol + \"//\" + loc.host;\n    // relative path support\n    if (typeof uri === \"string\") {\n        if (\"/\" === uri.charAt(0)) {\n            if (\"/\" === uri.charAt(1)) {\n                uri = loc.protocol + uri;\n            }\n            else {\n                uri = loc.host + uri;\n            }\n        }\n        if (!/^(https?|wss?):\\/\\//.test(uri)) {\n            if (\"undefined\" !== typeof loc) {\n                uri = loc.protocol + \"//\" + uri;\n            }\n            else {\n                uri = \"https://\" + uri;\n            }\n        }\n        // parse\n        obj = parse(uri);\n    }\n    // make sure we treat `localhost:80` and `localhost` equally\n    if (!obj.port) {\n        if (/^(http|ws)$/.test(obj.protocol)) {\n            obj.port = \"80\";\n        }\n        else if (/^(http|ws)s$/.test(obj.protocol)) {\n            obj.port = \"443\";\n        }\n    }\n    obj.path = obj.path || \"/\";\n    const ipv6 = obj.host.indexOf(\":\") !== -1;\n    const host = ipv6 ? \"[\" + obj.host + \"]\" : obj.host;\n    // define unique id\n    obj.id = obj.protocol + \"://\" + host + \":\" + obj.port + path;\n    // define href\n    obj.href =\n        obj.protocol +\n            \"://\" +\n            host +\n            (loc && loc.port === obj.port ? \"\" : \":\" + obj.port);\n    return obj;\n}\n", "import { Emitter } from \"@socket.io/component-emitter\";\nimport { deconstructPacket, reconstructPacket } from \"./binary.js\";\nimport { isBinary, hasBinary } from \"./is-binary.js\";\n/**\n * These strings must not be used as event names, as they have a special meaning.\n */\nconst RESERVED_EVENTS = [\n    \"connect\",\n    \"connect_error\",\n    \"disconnect\",\n    \"disconnecting\",\n    \"newListener\",\n    \"removeListener\", // used by the Node.js EventEmitter\n];\n/**\n * Protocol version.\n *\n * @public\n */\nexport const protocol = 5;\nexport var PacketType;\n(function (PacketType) {\n    PacketType[PacketType[\"CONNECT\"] = 0] = \"CONNECT\";\n    PacketType[PacketType[\"DISCONNECT\"] = 1] = \"DISCONNECT\";\n    PacketType[PacketType[\"EVENT\"] = 2] = \"EVENT\";\n    PacketType[PacketType[\"ACK\"] = 3] = \"ACK\";\n    PacketType[PacketType[\"CONNECT_ERROR\"] = 4] = \"CONNECT_ERROR\";\n    PacketType[PacketType[\"BINARY_EVENT\"] = 5] = \"BINARY_EVENT\";\n    PacketType[PacketType[\"BINARY_ACK\"] = 6] = \"BINARY_ACK\";\n})(PacketType || (PacketType = {}));\n/**\n * A socket.io Encoder instance\n */\nexport class Encoder {\n    /**\n     * Encoder constructor\n     *\n     * @param {function} replacer - custom replacer to pass down to JSON.parse\n     */\n    constructor(replacer) {\n        this.replacer = replacer;\n    }\n    /**\n     * Encode a packet as a single string if non-binary, or as a\n     * buffer sequence, depending on packet type.\n     *\n     * @param {Object} obj - packet object\n     */\n    encode(obj) {\n        if (obj.type === PacketType.EVENT || obj.type === PacketType.ACK) {\n            if (hasBinary(obj)) {\n                return this.encodeAsBinary({\n                    type: obj.type === PacketType.EVENT\n                        ? PacketType.BINARY_EVENT\n                        : PacketType.BINARY_ACK,\n                    nsp: obj.nsp,\n                    data: obj.data,\n                    id: obj.id,\n                });\n            }\n        }\n        return [this.encodeAsString(obj)];\n    }\n    /**\n     * Encode packet as string.\n     */\n    encodeAsString(obj) {\n        // first is type\n        let str = \"\" + obj.type;\n        // attachments if we have them\n        if (obj.type === PacketType.BINARY_EVENT ||\n            obj.type === PacketType.BINARY_ACK) {\n            str += obj.attachments + \"-\";\n        }\n        // if we have a namespace other than `/`\n        // we append it followed by a comma `,`\n        if (obj.nsp && \"/\" !== obj.nsp) {\n            str += obj.nsp + \",\";\n        }\n        // immediately followed by the id\n        if (null != obj.id) {\n            str += obj.id;\n        }\n        // json data\n        if (null != obj.data) {\n            str += JSON.stringify(obj.data, this.replacer);\n        }\n        return str;\n    }\n    /**\n     * Encode packet as 'buffer sequence' by removing blobs, and\n     * deconstructing packet into object with placeholders and\n     * a list of buffers.\n     */\n    encodeAsBinary(obj) {\n        const deconstruction = deconstructPacket(obj);\n        const pack = this.encodeAsString(deconstruction.packet);\n        const buffers = deconstruction.buffers;\n        buffers.unshift(pack); // add packet info to beginning of data list\n        return buffers; // write all the buffers\n    }\n}\n// see https://stackoverflow.com/questions/8511281/check-if-a-value-is-an-object-in-javascript\nfunction isObject(value) {\n    return Object.prototype.toString.call(value) === \"[object Object]\";\n}\n/**\n * A socket.io Decoder instance\n *\n * @return {Object} decoder\n */\nexport class Decoder extends Emitter {\n    /**\n     * Decoder constructor\n     *\n     * @param {function} reviver - custom reviver to pass down to JSON.stringify\n     */\n    constructor(reviver) {\n        super();\n        this.reviver = reviver;\n    }\n    /**\n     * Decodes an encoded packet string into packet JSON.\n     *\n     * @param {String} obj - encoded packet\n     */\n    add(obj) {\n        let packet;\n        if (typeof obj === \"string\") {\n            if (this.reconstructor) {\n                throw new Error(\"got plaintext data when reconstructing a packet\");\n            }\n            packet = this.decodeString(obj);\n            const isBinaryEvent = packet.type === PacketType.BINARY_EVENT;\n            if (isBinaryEvent || packet.type === PacketType.BINARY_ACK) {\n                packet.type = isBinaryEvent ? PacketType.EVENT : PacketType.ACK;\n                // binary packet's json\n                this.reconstructor = new BinaryReconstructor(packet);\n                // no attachments, labeled binary but no binary data to follow\n                if (packet.attachments === 0) {\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n            else {\n                // non-binary full packet\n                super.emitReserved(\"decoded\", packet);\n            }\n        }\n        else if (isBinary(obj) || obj.base64) {\n            // raw binary data\n            if (!this.reconstructor) {\n                throw new Error(\"got binary data when not reconstructing a packet\");\n            }\n            else {\n                packet = this.reconstructor.takeBinaryData(obj);\n                if (packet) {\n                    // received final buffer\n                    this.reconstructor = null;\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n        }\n        else {\n            throw new Error(\"Unknown type: \" + obj);\n        }\n    }\n    /**\n     * Decode a packet String (JSON data)\n     *\n     * @param {String} str\n     * @return {Object} packet\n     */\n    decodeString(str) {\n        let i = 0;\n        // look up type\n        const p = {\n            type: Number(str.charAt(0)),\n        };\n        if (PacketType[p.type] === undefined) {\n            throw new Error(\"unknown packet type \" + p.type);\n        }\n        // look up attachments if type binary\n        if (p.type === PacketType.BINARY_EVENT ||\n            p.type === PacketType.BINARY_ACK) {\n            const start = i + 1;\n            while (str.charAt(++i) !== \"-\" && i != str.length) { }\n            const buf = str.substring(start, i);\n            if (buf != Number(buf) || str.charAt(i) !== \"-\") {\n                throw new Error(\"Illegal attachments\");\n            }\n            p.attachments = Number(buf);\n        }\n        // look up namespace (if any)\n        if (\"/\" === str.charAt(i + 1)) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (\",\" === c)\n                    break;\n                if (i === str.length)\n                    break;\n            }\n            p.nsp = str.substring(start, i);\n        }\n        else {\n            p.nsp = \"/\";\n        }\n        // look up id\n        const next = str.charAt(i + 1);\n        if (\"\" !== next && Number(next) == next) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (null == c || Number(c) != c) {\n                    --i;\n                    break;\n                }\n                if (i === str.length)\n                    break;\n            }\n            p.id = Number(str.substring(start, i + 1));\n        }\n        // look up json data\n        if (str.charAt(++i)) {\n            const payload = this.tryParse(str.substr(i));\n            if (Decoder.isPayloadValid(p.type, payload)) {\n                p.data = payload;\n            }\n            else {\n                throw new Error(\"invalid payload\");\n            }\n        }\n        return p;\n    }\n    tryParse(str) {\n        try {\n            return JSON.parse(str, this.reviver);\n        }\n        catch (e) {\n            return false;\n        }\n    }\n    static isPayloadValid(type, payload) {\n        switch (type) {\n            case PacketType.CONNECT:\n                return isObject(payload);\n            case PacketType.DISCONNECT:\n                return payload === undefined;\n            case PacketType.CONNECT_ERROR:\n                return typeof payload === \"string\" || isObject(payload);\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                return (Array.isArray(payload) &&\n                    (typeof payload[0] === \"number\" ||\n                        (typeof payload[0] === \"string\" &&\n                            RESERVED_EVENTS.indexOf(payload[0]) === -1)));\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                return Array.isArray(payload);\n        }\n    }\n    /**\n     * Deallocates a parser's resources\n     */\n    destroy() {\n        if (this.reconstructor) {\n            this.reconstructor.finishedReconstruction();\n            this.reconstructor = null;\n        }\n    }\n}\n/**\n * A manager of a binary event's 'buffer sequence'. Should\n * be constructed whenever a packet of type BINARY_EVENT is\n * decoded.\n *\n * @param {Object} packet\n * @return {BinaryReconstructor} initialized reconstructor\n */\nclass BinaryReconstructor {\n    constructor(packet) {\n        this.packet = packet;\n        this.buffers = [];\n        this.reconPack = packet;\n    }\n    /**\n     * Method to be called when binary data received from connection\n     * after a BINARY_EVENT packet.\n     *\n     * @param {Buffer | ArrayBuffer} binData - the raw binary data received\n     * @return {null | Object} returns null if more binary data is expected or\n     *   a reconstructed packet object if all buffers have been received.\n     */\n    takeBinaryData(binData) {\n        this.buffers.push(binData);\n        if (this.buffers.length === this.reconPack.attachments) {\n            // done with buffer list\n            const packet = reconstructPacket(this.reconPack, this.buffers);\n            this.finishedReconstruction();\n            return packet;\n        }\n        return null;\n    }\n    /**\n     * Cleans up binary packet reconstruction variables.\n     */\n    finishedReconstruction() {\n        this.reconPack = null;\n        this.buffers = [];\n    }\n}\n", "const withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nconst isView = (obj) => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj.buffer instanceof ArrayBuffer;\n};\nconst toString = Object.prototype.toString;\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeFile = typeof File === \"function\" ||\n    (typeof File !== \"undefined\" &&\n        toString.call(File) === \"[object FileConstructor]\");\n/**\n * Returns true if obj is a Buffer, an ArrayBuffer, a Blob or a File.\n *\n * @private\n */\nexport function isBinary(obj) {\n    return ((withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj))) ||\n        (withNativeBlob && obj instanceof Blob) ||\n        (withNativeFile && obj instanceof File));\n}\nexport function hasBinary(obj, toJSON) {\n    if (!obj || typeof obj !== \"object\") {\n        return false;\n    }\n    if (Array.isArray(obj)) {\n        for (let i = 0, l = obj.length; i < l; i++) {\n            if (hasBinary(obj[i])) {\n                return true;\n            }\n        }\n        return false;\n    }\n    if (isBinary(obj)) {\n        return true;\n    }\n    if (obj.toJSON &&\n        typeof obj.toJSON === \"function\" &&\n        arguments.length === 1) {\n        return hasBinary(obj.toJSON(), true);\n    }\n    for (const key in obj) {\n        if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {\n            return true;\n        }\n    }\n    return false;\n}\n", "import { isBinary } from \"./is-binary.js\";\n/**\n * Replaces every Buffer | ArrayBuffer | Blob | File in packet with a numbered placeholder.\n *\n * @param {Object} packet - socket.io event packet\n * @return {Object} with deconstructed packet and list of buffers\n * @public\n */\nexport function deconstructPacket(packet) {\n    const buffers = [];\n    const packetData = packet.data;\n    const pack = packet;\n    pack.data = _deconstructPacket(packetData, buffers);\n    pack.attachments = buffers.length; // number of binary 'attachments'\n    return { packet: pack, buffers: buffers };\n}\nfunction _deconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (isBinary(data)) {\n        const placeholder = { _placeholder: true, num: buffers.length };\n        buffers.push(data);\n        return placeholder;\n    }\n    else if (Array.isArray(data)) {\n        const newData = new Array(data.length);\n        for (let i = 0; i < data.length; i++) {\n            newData[i] = _deconstructPacket(data[i], buffers);\n        }\n        return newData;\n    }\n    else if (typeof data === \"object\" && !(data instanceof Date)) {\n        const newData = {};\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                newData[key] = _deconstructPacket(data[key], buffers);\n            }\n        }\n        return newData;\n    }\n    return data;\n}\n/**\n * Reconstructs a binary packet from its placeholder packet and buffers\n *\n * @param {Object} packet - event packet with placeholders\n * @param {Array} buffers - binary buffers to put in placeholder positions\n * @return {Object} reconstructed packet\n * @public\n */\nexport function reconstructPacket(packet, buffers) {\n    packet.data = _reconstructPacket(packet.data, buffers);\n    delete packet.attachments; // no longer useful\n    return packet;\n}\nfunction _reconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (data && data._placeholder === true) {\n        const isIndexValid = typeof data.num === \"number\" &&\n            data.num >= 0 &&\n            data.num < buffers.length;\n        if (isIndexValid) {\n            return buffers[data.num]; // appropriate buffer (should be natural order anyway)\n        }\n        else {\n            throw new Error(\"illegal attachments\");\n        }\n    }\n    else if (Array.isArray(data)) {\n        for (let i = 0; i < data.length; i++) {\n            data[i] = _reconstructPacket(data[i], buffers);\n        }\n    }\n    else if (typeof data === \"object\") {\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                data[key] = _reconstructPacket(data[key], buffers);\n            }\n        }\n    }\n    return data;\n}\n", "export function on(obj, ev, fn) {\n    obj.on(ev, fn);\n    return function subDestroy() {\n        obj.off(ev, fn);\n    };\n}\n", "import { PacketType } from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\n/**\n * Internal events.\n * These events can't be emitted by the user.\n */\nconst RESERVED_EVENTS = Object.freeze({\n    connect: 1,\n    connect_error: 1,\n    disconnect: 1,\n    disconnecting: 1,\n    // EventEmitter reserved events: https://nodejs.org/api/events.html#events_event_newlistener\n    newListener: 1,\n    removeListener: 1,\n});\n/**\n * A Socket is the fundamental class for interacting with the server.\n *\n * A Socket belongs to a certain Namespace (by default /) and uses an underlying {@link Manager} to communicate.\n *\n * @example\n * const socket = io();\n *\n * socket.on(\"connect\", () => {\n *   console.log(\"connected\");\n * });\n *\n * // send an event to the server\n * socket.emit(\"foo\", \"bar\");\n *\n * socket.on(\"foobar\", () => {\n *   // an event was received from the server\n * });\n *\n * // upon disconnection\n * socket.on(\"disconnect\", (reason) => {\n *   console.log(`disconnected due to ${reason}`);\n * });\n */\nexport class Socket extends Emitter {\n    /**\n     * `Socket` constructor.\n     */\n    constructor(io, nsp, opts) {\n        super();\n        /**\n         * Whether the socket is currently connected to the server.\n         *\n         * @example\n         * const socket = io();\n         *\n         * socket.on(\"connect\", () => {\n         *   console.log(socket.connected); // true\n         * });\n         *\n         * socket.on(\"disconnect\", () => {\n         *   console.log(socket.connected); // false\n         * });\n         */\n        this.connected = false;\n        /**\n         * Whether the connection state was recovered after a temporary disconnection. In that case, any missed packets will\n         * be transmitted by the server.\n         */\n        this.recovered = false;\n        /**\n         * Buffer for packets received before the CONNECT packet\n         */\n        this.receiveBuffer = [];\n        /**\n         * Buffer for packets that will be sent once the socket is connected\n         */\n        this.sendBuffer = [];\n        /**\n         * The queue of packets to be sent with retry in case of failure.\n         *\n         * Packets are sent one by one, each waiting for the server acknowledgement, in order to guarantee the delivery order.\n         * @private\n         */\n        this._queue = [];\n        /**\n         * A sequence to generate the ID of the {@link QueuedPacket}.\n         * @private\n         */\n        this._queueSeq = 0;\n        this.ids = 0;\n        this.acks = {};\n        this.flags = {};\n        this.io = io;\n        this.nsp = nsp;\n        if (opts && opts.auth) {\n            this.auth = opts.auth;\n        }\n        this._opts = Object.assign({}, opts);\n        if (this.io._autoConnect)\n            this.open();\n    }\n    /**\n     * Whether the socket is currently disconnected\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"connect\", () => {\n     *   console.log(socket.disconnected); // false\n     * });\n     *\n     * socket.on(\"disconnect\", () => {\n     *   console.log(socket.disconnected); // true\n     * });\n     */\n    get disconnected() {\n        return !this.connected;\n    }\n    /**\n     * Subscribe to open, close and packet events\n     *\n     * @private\n     */\n    subEvents() {\n        if (this.subs)\n            return;\n        const io = this.io;\n        this.subs = [\n            on(io, \"open\", this.onopen.bind(this)),\n            on(io, \"packet\", this.onpacket.bind(this)),\n            on(io, \"error\", this.onerror.bind(this)),\n            on(io, \"close\", this.onclose.bind(this)),\n        ];\n    }\n    /**\n     * Whether the Socket will try to reconnect when its Manager connects or reconnects.\n     *\n     * @example\n     * const socket = io();\n     *\n     * console.log(socket.active); // true\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   if (reason === \"io server disconnect\") {\n     *     // the disconnection was initiated by the server, you need to manually reconnect\n     *     console.log(socket.active); // false\n     *   }\n     *   // else the socket will automatically try to reconnect\n     *   console.log(socket.active); // true\n     * });\n     */\n    get active() {\n        return !!this.subs;\n    }\n    /**\n     * \"Opens\" the socket.\n     *\n     * @example\n     * const socket = io({\n     *   autoConnect: false\n     * });\n     *\n     * socket.connect();\n     */\n    connect() {\n        if (this.connected)\n            return this;\n        this.subEvents();\n        if (!this.io[\"_reconnecting\"])\n            this.io.open(); // ensure open\n        if (\"open\" === this.io._readyState)\n            this.onopen();\n        return this;\n    }\n    /**\n     * Alias for {@link connect()}.\n     */\n    open() {\n        return this.connect();\n    }\n    /**\n     * Sends a `message` event.\n     *\n     * This method mimics the WebSocket.send() method.\n     *\n     * @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send\n     *\n     * @example\n     * socket.send(\"hello\");\n     *\n     * // this is equivalent to\n     * socket.emit(\"message\", \"hello\");\n     *\n     * @return self\n     */\n    send(...args) {\n        args.unshift(\"message\");\n        this.emit.apply(this, args);\n        return this;\n    }\n    /**\n     * Override `emit`.\n     * If the event is in `events`, it's emitted normally.\n     *\n     * @example\n     * socket.emit(\"hello\", \"world\");\n     *\n     * // all serializable datastructures are supported (no need to call JSON.stringify)\n     * socket.emit(\"hello\", 1, \"2\", { 3: [\"4\"], 5: Uint8Array.from([6]) });\n     *\n     * // with an acknowledgement from the server\n     * socket.emit(\"hello\", \"world\", (val) => {\n     *   // ...\n     * });\n     *\n     * @return self\n     */\n    emit(ev, ...args) {\n        if (RESERVED_EVENTS.hasOwnProperty(ev)) {\n            throw new Error('\"' + ev.toString() + '\" is a reserved event name');\n        }\n        args.unshift(ev);\n        if (this._opts.retries && !this.flags.fromQueue && !this.flags.volatile) {\n            this._addToQueue(args);\n            return this;\n        }\n        const packet = {\n            type: PacketType.EVENT,\n            data: args,\n        };\n        packet.options = {};\n        packet.options.compress = this.flags.compress !== false;\n        // event ack callback\n        if (\"function\" === typeof args[args.length - 1]) {\n            const id = this.ids++;\n            const ack = args.pop();\n            this._registerAckCallback(id, ack);\n            packet.id = id;\n        }\n        const isTransportWritable = this.io.engine &&\n            this.io.engine.transport &&\n            this.io.engine.transport.writable;\n        const discardPacket = this.flags.volatile && (!isTransportWritable || !this.connected);\n        if (discardPacket) {\n        }\n        else if (this.connected) {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        }\n        else {\n            this.sendBuffer.push(packet);\n        }\n        this.flags = {};\n        return this;\n    }\n    /**\n     * @private\n     */\n    _registerAckCallback(id, ack) {\n        var _a;\n        const timeout = (_a = this.flags.timeout) !== null && _a !== void 0 ? _a : this._opts.ackTimeout;\n        if (timeout === undefined) {\n            this.acks[id] = ack;\n            return;\n        }\n        // @ts-ignore\n        const timer = this.io.setTimeoutFn(() => {\n            delete this.acks[id];\n            for (let i = 0; i < this.sendBuffer.length; i++) {\n                if (this.sendBuffer[i].id === id) {\n                    this.sendBuffer.splice(i, 1);\n                }\n            }\n            ack.call(this, new Error(\"operation has timed out\"));\n        }, timeout);\n        this.acks[id] = (...args) => {\n            // @ts-ignore\n            this.io.clearTimeoutFn(timer);\n            ack.apply(this, [null, ...args]);\n        };\n    }\n    /**\n     * Emits an event and waits for an acknowledgement\n     *\n     * @example\n     * // without timeout\n     * const response = await socket.emitWithAck(\"hello\", \"world\");\n     *\n     * // with a specific timeout\n     * try {\n     *   const response = await socket.timeout(1000).emitWithAck(\"hello\", \"world\");\n     * } catch (err) {\n     *   // the server did not acknowledge the event in the given delay\n     * }\n     *\n     * @return a Promise that will be fulfilled when the server acknowledges the event\n     */\n    emitWithAck(ev, ...args) {\n        // the timeout flag is optional\n        const withErr = this.flags.timeout !== undefined || this._opts.ackTimeout !== undefined;\n        return new Promise((resolve, reject) => {\n            args.push((arg1, arg2) => {\n                if (withErr) {\n                    return arg1 ? reject(arg1) : resolve(arg2);\n                }\n                else {\n                    return resolve(arg1);\n                }\n            });\n            this.emit(ev, ...args);\n        });\n    }\n    /**\n     * Add the packet to the queue.\n     * @param args\n     * @private\n     */\n    _addToQueue(args) {\n        let ack;\n        if (typeof args[args.length - 1] === \"function\") {\n            ack = args.pop();\n        }\n        const packet = {\n            id: this._queueSeq++,\n            tryCount: 0,\n            pending: false,\n            args,\n            flags: Object.assign({ fromQueue: true }, this.flags),\n        };\n        args.push((err, ...responseArgs) => {\n            if (packet !== this._queue[0]) {\n                // the packet has already been acknowledged\n                return;\n            }\n            const hasError = err !== null;\n            if (hasError) {\n                if (packet.tryCount > this._opts.retries) {\n                    this._queue.shift();\n                    if (ack) {\n                        ack(err);\n                    }\n                }\n            }\n            else {\n                this._queue.shift();\n                if (ack) {\n                    ack(null, ...responseArgs);\n                }\n            }\n            packet.pending = false;\n            return this._drainQueue();\n        });\n        this._queue.push(packet);\n        this._drainQueue();\n    }\n    /**\n     * Send the first packet of the queue, and wait for an acknowledgement from the server.\n     * @param force - whether to resend a packet that has not been acknowledged yet\n     *\n     * @private\n     */\n    _drainQueue(force = false) {\n        if (!this.connected || this._queue.length === 0) {\n            return;\n        }\n        const packet = this._queue[0];\n        if (packet.pending && !force) {\n            return;\n        }\n        packet.pending = true;\n        packet.tryCount++;\n        this.flags = packet.flags;\n        this.emit.apply(this, packet.args);\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param packet\n     * @private\n     */\n    packet(packet) {\n        packet.nsp = this.nsp;\n        this.io._packet(packet);\n    }\n    /**\n     * Called upon engine `open`.\n     *\n     * @private\n     */\n    onopen() {\n        if (typeof this.auth == \"function\") {\n            this.auth((data) => {\n                this._sendConnectPacket(data);\n            });\n        }\n        else {\n            this._sendConnectPacket(this.auth);\n        }\n    }\n    /**\n     * Sends a CONNECT packet to initiate the Socket.IO session.\n     *\n     * @param data\n     * @private\n     */\n    _sendConnectPacket(data) {\n        this.packet({\n            type: PacketType.CONNECT,\n            data: this._pid\n                ? Object.assign({ pid: this._pid, offset: this._lastOffset }, data)\n                : data,\n        });\n    }\n    /**\n     * Called upon engine or manager `error`.\n     *\n     * @param err\n     * @private\n     */\n    onerror(err) {\n        if (!this.connected) {\n            this.emitReserved(\"connect_error\", err);\n        }\n    }\n    /**\n     * Called upon engine `close`.\n     *\n     * @param reason\n     * @param description\n     * @private\n     */\n    onclose(reason, description) {\n        this.connected = false;\n        delete this.id;\n        this.emitReserved(\"disconnect\", reason, description);\n    }\n    /**\n     * Called with socket packet.\n     *\n     * @param packet\n     * @private\n     */\n    onpacket(packet) {\n        const sameNamespace = packet.nsp === this.nsp;\n        if (!sameNamespace)\n            return;\n        switch (packet.type) {\n            case PacketType.CONNECT:\n                if (packet.data && packet.data.sid) {\n                    this.onconnect(packet.data.sid, packet.data.pid);\n                }\n                else {\n                    this.emitReserved(\"connect_error\", new Error(\"It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)\"));\n                }\n                break;\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                this.onevent(packet);\n                break;\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                this.onack(packet);\n                break;\n            case PacketType.DISCONNECT:\n                this.ondisconnect();\n                break;\n            case PacketType.CONNECT_ERROR:\n                this.destroy();\n                const err = new Error(packet.data.message);\n                // @ts-ignore\n                err.data = packet.data.data;\n                this.emitReserved(\"connect_error\", err);\n                break;\n        }\n    }\n    /**\n     * Called upon a server event.\n     *\n     * @param packet\n     * @private\n     */\n    onevent(packet) {\n        const args = packet.data || [];\n        if (null != packet.id) {\n            args.push(this.ack(packet.id));\n        }\n        if (this.connected) {\n            this.emitEvent(args);\n        }\n        else {\n            this.receiveBuffer.push(Object.freeze(args));\n        }\n    }\n    emitEvent(args) {\n        if (this._anyListeners && this._anyListeners.length) {\n            const listeners = this._anyListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, args);\n            }\n        }\n        super.emit.apply(this, args);\n        if (this._pid && args.length && typeof args[args.length - 1] === \"string\") {\n            this._lastOffset = args[args.length - 1];\n        }\n    }\n    /**\n     * Produces an ack callback to emit with an event.\n     *\n     * @private\n     */\n    ack(id) {\n        const self = this;\n        let sent = false;\n        return function (...args) {\n            // prevent double callbacks\n            if (sent)\n                return;\n            sent = true;\n            self.packet({\n                type: PacketType.ACK,\n                id: id,\n                data: args,\n            });\n        };\n    }\n    /**\n     * Called upon a server acknowlegement.\n     *\n     * @param packet\n     * @private\n     */\n    onack(packet) {\n        const ack = this.acks[packet.id];\n        if (\"function\" === typeof ack) {\n            ack.apply(this, packet.data);\n            delete this.acks[packet.id];\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon server connect.\n     *\n     * @private\n     */\n    onconnect(id, pid) {\n        this.id = id;\n        this.recovered = pid && this._pid === pid;\n        this._pid = pid; // defined only if connection state recovery is enabled\n        this.connected = true;\n        this.emitBuffered();\n        this.emitReserved(\"connect\");\n        this._drainQueue(true);\n    }\n    /**\n     * Emit buffered events (received and emitted).\n     *\n     * @private\n     */\n    emitBuffered() {\n        this.receiveBuffer.forEach((args) => this.emitEvent(args));\n        this.receiveBuffer = [];\n        this.sendBuffer.forEach((packet) => {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        });\n        this.sendBuffer = [];\n    }\n    /**\n     * Called upon server disconnect.\n     *\n     * @private\n     */\n    ondisconnect() {\n        this.destroy();\n        this.onclose(\"io server disconnect\");\n    }\n    /**\n     * Called upon forced client/server side disconnections,\n     * this method ensures the manager stops tracking us and\n     * that reconnections don't get triggered for this.\n     *\n     * @private\n     */\n    destroy() {\n        if (this.subs) {\n            // clean subscriptions to avoid reconnections\n            this.subs.forEach((subDestroy) => subDestroy());\n            this.subs = undefined;\n        }\n        this.io[\"_destroy\"](this);\n    }\n    /**\n     * Disconnects the socket manually. In that case, the socket will not try to reconnect.\n     *\n     * If this is the last active Socket instance of the {@link Manager}, the low-level connection will be closed.\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   // console.log(reason); prints \"io client disconnect\"\n     * });\n     *\n     * socket.disconnect();\n     *\n     * @return self\n     */\n    disconnect() {\n        if (this.connected) {\n            this.packet({ type: PacketType.DISCONNECT });\n        }\n        // remove socket from pool\n        this.destroy();\n        if (this.connected) {\n            // fire events\n            this.onclose(\"io client disconnect\");\n        }\n        return this;\n    }\n    /**\n     * Alias for {@link disconnect()}.\n     *\n     * @return self\n     */\n    close() {\n        return this.disconnect();\n    }\n    /**\n     * Sets the compress flag.\n     *\n     * @example\n     * socket.compress(false).emit(\"hello\");\n     *\n     * @param compress - if `true`, compresses the sending data\n     * @return self\n     */\n    compress(compress) {\n        this.flags.compress = compress;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the event message will be dropped when this socket is not\n     * ready to send messages.\n     *\n     * @example\n     * socket.volatile.emit(\"hello\"); // the server may or may not receive it\n     *\n     * @returns self\n     */\n    get volatile() {\n        this.flags.volatile = true;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the callback will be called with an error when the\n     * given number of milliseconds have elapsed without an acknowledgement from the server:\n     *\n     * @example\n     * socket.timeout(5000).emit(\"my-event\", (err) => {\n     *   if (err) {\n     *     // the server did not acknowledge the event in the given delay\n     *   }\n     * });\n     *\n     * @returns self\n     */\n    timeout(timeout) {\n        this.flags.timeout = timeout;\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * @example\n     * socket.onAny((event, ...args) => {\n     *   console.log(`got ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * @example\n     * socket.prependAny((event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * }\n     *\n     * socket.onAny(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAny(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAny();\n     *\n     * @param listener\n     */\n    offAny(listener) {\n        if (!this._anyListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAny() {\n        return this._anyListeners || [];\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.onAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.prependAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * }\n     *\n     * socket.onAnyOutgoing(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAnyOutgoing(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAnyOutgoing();\n     *\n     * @param [listener] - the catch-all listener (optional)\n     */\n    offAnyOutgoing(listener) {\n        if (!this._anyOutgoingListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyOutgoingListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyOutgoingListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAnyOutgoing() {\n        return this._anyOutgoingListeners || [];\n    }\n    /**\n     * Notify the listeners for each packet sent\n     *\n     * @param packet\n     *\n     * @private\n     */\n    notifyOutgoingListeners(packet) {\n        if (this._anyOutgoingListeners && this._anyOutgoingListeners.length) {\n            const listeners = this._anyOutgoingListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, packet.data);\n            }\n        }\n    }\n}\n", "/**\n * Initialize backoff timer with `opts`.\n *\n * - `min` initial timeout in milliseconds [100]\n * - `max` max timeout [10000]\n * - `jitter` [0]\n * - `factor` [2]\n *\n * @param {Object} opts\n * @api public\n */\nexport function Backoff(opts) {\n    opts = opts || {};\n    this.ms = opts.min || 100;\n    this.max = opts.max || 10000;\n    this.factor = opts.factor || 2;\n    this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;\n    this.attempts = 0;\n}\n/**\n * Return the backoff duration.\n *\n * @return {Number}\n * @api public\n */\nBackoff.prototype.duration = function () {\n    var ms = this.ms * Math.pow(this.factor, this.attempts++);\n    if (this.jitter) {\n        var rand = Math.random();\n        var deviation = Math.floor(rand * this.jitter * ms);\n        ms = (Math.floor(rand * 10) & 1) == 0 ? ms - deviation : ms + deviation;\n    }\n    return Math.min(ms, this.max) | 0;\n};\n/**\n * Reset the number of attempts.\n *\n * @api public\n */\nBackoff.prototype.reset = function () {\n    this.attempts = 0;\n};\n/**\n * Set the minimum duration\n *\n * @api public\n */\nBackoff.prototype.setMin = function (min) {\n    this.ms = min;\n};\n/**\n * Set the maximum duration\n *\n * @api public\n */\nBackoff.prototype.setMax = function (max) {\n    this.max = max;\n};\n/**\n * Set the jitter\n *\n * @api public\n */\nBackoff.prototype.setJitter = function (jitter) {\n    this.jitter = jitter;\n};\n", "import { Socket as Engine, installTimerFunctions, nextTick, } from \"engine.io-client\";\nimport { Socket } from \"./socket.js\";\nimport * as parser from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Backoff } from \"./contrib/backo2.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\nexport class Manager extends Emitter {\n    constructor(uri, opts) {\n        var _a;\n        super();\n        this.nsps = {};\n        this.subs = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = undefined;\n        }\n        opts = opts || {};\n        opts.path = opts.path || \"/socket.io\";\n        this.opts = opts;\n        installTimerFunctions(this, opts);\n        this.reconnection(opts.reconnection !== false);\n        this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);\n        this.reconnectionDelay(opts.reconnectionDelay || 1000);\n        this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);\n        this.randomizationFactor((_a = opts.randomizationFactor) !== null && _a !== void 0 ? _a : 0.5);\n        this.backoff = new Backoff({\n            min: this.reconnectionDelay(),\n            max: this.reconnectionDelayMax(),\n            jitter: this.randomizationFactor(),\n        });\n        this.timeout(null == opts.timeout ? 20000 : opts.timeout);\n        this._readyState = \"closed\";\n        this.uri = uri;\n        const _parser = opts.parser || parser;\n        this.encoder = new _parser.Encoder();\n        this.decoder = new _parser.Decoder();\n        this._autoConnect = opts.autoConnect !== false;\n        if (this._autoConnect)\n            this.open();\n    }\n    reconnection(v) {\n        if (!arguments.length)\n            return this._reconnection;\n        this._reconnection = !!v;\n        return this;\n    }\n    reconnectionAttempts(v) {\n        if (v === undefined)\n            return this._reconnectionAttempts;\n        this._reconnectionAttempts = v;\n        return this;\n    }\n    reconnectionDelay(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelay;\n        this._reconnectionDelay = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMin(v);\n        return this;\n    }\n    randomizationFactor(v) {\n        var _a;\n        if (v === undefined)\n            return this._randomizationFactor;\n        this._randomizationFactor = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setJitter(v);\n        return this;\n    }\n    reconnectionDelayMax(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelayMax;\n        this._reconnectionDelayMax = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMax(v);\n        return this;\n    }\n    timeout(v) {\n        if (!arguments.length)\n            return this._timeout;\n        this._timeout = v;\n        return this;\n    }\n    /**\n     * Starts trying to reconnect if reconnection is enabled and we have not\n     * started reconnecting yet\n     *\n     * @private\n     */\n    maybeReconnectOnOpen() {\n        // Only try to reconnect if it's the first time we're connecting\n        if (!this._reconnecting &&\n            this._reconnection &&\n            this.backoff.attempts === 0) {\n            // keeps reconnection from firing twice for the same reconnection loop\n            this.reconnect();\n        }\n    }\n    /**\n     * Sets the current transport `socket`.\n     *\n     * @param {Function} fn - optional, callback\n     * @return self\n     * @public\n     */\n    open(fn) {\n        if (~this._readyState.indexOf(\"open\"))\n            return this;\n        this.engine = new Engine(this.uri, this.opts);\n        const socket = this.engine;\n        const self = this;\n        this._readyState = \"opening\";\n        this.skipReconnect = false;\n        // emit `open`\n        const openSubDestroy = on(socket, \"open\", function () {\n            self.onopen();\n            fn && fn();\n        });\n        const onError = (err) => {\n            this.cleanup();\n            this._readyState = \"closed\";\n            this.emitReserved(\"error\", err);\n            if (fn) {\n                fn(err);\n            }\n            else {\n                // Only do this if there is no fn to handle the error\n                this.maybeReconnectOnOpen();\n            }\n        };\n        // emit `error`\n        const errorSub = on(socket, \"error\", onError);\n        if (false !== this._timeout) {\n            const timeout = this._timeout;\n            // set timer\n            const timer = this.setTimeoutFn(() => {\n                openSubDestroy();\n                onError(new Error(\"timeout\"));\n                socket.close();\n            }, timeout);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n        this.subs.push(openSubDestroy);\n        this.subs.push(errorSub);\n        return this;\n    }\n    /**\n     * Alias for open()\n     *\n     * @return self\n     * @public\n     */\n    connect(fn) {\n        return this.open(fn);\n    }\n    /**\n     * Called upon transport open.\n     *\n     * @private\n     */\n    onopen() {\n        // clear old subs\n        this.cleanup();\n        // mark as open\n        this._readyState = \"open\";\n        this.emitReserved(\"open\");\n        // add new subs\n        const socket = this.engine;\n        this.subs.push(on(socket, \"ping\", this.onping.bind(this)), on(socket, \"data\", this.ondata.bind(this)), on(socket, \"error\", this.onerror.bind(this)), on(socket, \"close\", this.onclose.bind(this)), on(this.decoder, \"decoded\", this.ondecoded.bind(this)));\n    }\n    /**\n     * Called upon a ping.\n     *\n     * @private\n     */\n    onping() {\n        this.emitReserved(\"ping\");\n    }\n    /**\n     * Called with data.\n     *\n     * @private\n     */\n    ondata(data) {\n        try {\n            this.decoder.add(data);\n        }\n        catch (e) {\n            this.onclose(\"parse error\", e);\n        }\n    }\n    /**\n     * Called when parser fully decodes a packet.\n     *\n     * @private\n     */\n    ondecoded(packet) {\n        // the nextTick call prevents an exception in a user-provided event listener from triggering a disconnection due to a \"parse error\"\n        nextTick(() => {\n            this.emitReserved(\"packet\", packet);\n        }, this.setTimeoutFn);\n    }\n    /**\n     * Called upon socket error.\n     *\n     * @private\n     */\n    onerror(err) {\n        this.emitReserved(\"error\", err);\n    }\n    /**\n     * Creates a new socket for the given `nsp`.\n     *\n     * @return {Socket}\n     * @public\n     */\n    socket(nsp, opts) {\n        let socket = this.nsps[nsp];\n        if (!socket) {\n            socket = new Socket(this, nsp, opts);\n            this.nsps[nsp] = socket;\n        }\n        else if (this._autoConnect && !socket.active) {\n            socket.connect();\n        }\n        return socket;\n    }\n    /**\n     * Called upon a socket close.\n     *\n     * @param socket\n     * @private\n     */\n    _destroy(socket) {\n        const nsps = Object.keys(this.nsps);\n        for (const nsp of nsps) {\n            const socket = this.nsps[nsp];\n            if (socket.active) {\n                return;\n            }\n        }\n        this._close();\n    }\n    /**\n     * Writes a packet.\n     *\n     * @param packet\n     * @private\n     */\n    _packet(packet) {\n        const encodedPackets = this.encoder.encode(packet);\n        for (let i = 0; i < encodedPackets.length; i++) {\n            this.engine.write(encodedPackets[i], packet.options);\n        }\n    }\n    /**\n     * Clean up transport subscriptions and packet buffer.\n     *\n     * @private\n     */\n    cleanup() {\n        this.subs.forEach((subDestroy) => subDestroy());\n        this.subs.length = 0;\n        this.decoder.destroy();\n    }\n    /**\n     * Close the current socket.\n     *\n     * @private\n     */\n    _close() {\n        this.skipReconnect = true;\n        this._reconnecting = false;\n        this.onclose(\"forced close\");\n        if (this.engine)\n            this.engine.close();\n    }\n    /**\n     * Alias for close()\n     *\n     * @private\n     */\n    disconnect() {\n        return this._close();\n    }\n    /**\n     * Called upon engine close.\n     *\n     * @private\n     */\n    onclose(reason, description) {\n        this.cleanup();\n        this.backoff.reset();\n        this._readyState = \"closed\";\n        this.emitReserved(\"close\", reason, description);\n        if (this._reconnection && !this.skipReconnect) {\n            this.reconnect();\n        }\n    }\n    /**\n     * Attempt a reconnection.\n     *\n     * @private\n     */\n    reconnect() {\n        if (this._reconnecting || this.skipReconnect)\n            return this;\n        const self = this;\n        if (this.backoff.attempts >= this._reconnectionAttempts) {\n            this.backoff.reset();\n            this.emitReserved(\"reconnect_failed\");\n            this._reconnecting = false;\n        }\n        else {\n            const delay = this.backoff.duration();\n            this._reconnecting = true;\n            const timer = this.setTimeoutFn(() => {\n                if (self.skipReconnect)\n                    return;\n                this.emitReserved(\"reconnect_attempt\", self.backoff.attempts);\n                // check again for the case socket closed in above events\n                if (self.skipReconnect)\n                    return;\n                self.open((err) => {\n                    if (err) {\n                        self._reconnecting = false;\n                        self.reconnect();\n                        this.emitReserved(\"reconnect_error\", err);\n                    }\n                    else {\n                        self.onreconnect();\n                    }\n                });\n            }, delay);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n    }\n    /**\n     * Called upon successful reconnect.\n     *\n     * @private\n     */\n    onreconnect() {\n        const attempt = this.backoff.attempts;\n        this._reconnecting = false;\n        this.backoff.reset();\n        this.emitReserved(\"reconnect\", attempt);\n    }\n}\n", "import { url } from \"./url.js\";\nimport { Manager } from \"./manager.js\";\nimport { Socket } from \"./socket.js\";\n/**\n * Managers cache.\n */\nconst cache = {};\nfunction lookup(uri, opts) {\n    if (typeof uri === \"object\") {\n        opts = uri;\n        uri = undefined;\n    }\n    opts = opts || {};\n    const parsed = url(uri, opts.path || \"/socket.io\");\n    const source = parsed.source;\n    const id = parsed.id;\n    const path = parsed.path;\n    const sameNamespace = cache[id] && path in cache[id][\"nsps\"];\n    const newConnection = opts.forceNew ||\n        opts[\"force new connection\"] ||\n        false === opts.multiplex ||\n        sameNamespace;\n    let io;\n    if (newConnection) {\n        io = new Manager(source, opts);\n    }\n    else {\n        if (!cache[id]) {\n            cache[id] = new Manager(source, opts);\n        }\n        io = cache[id];\n    }\n    if (parsed.query && !opts.query) {\n        opts.query = parsed.queryKey;\n    }\n    return io.socket(parsed.path, opts);\n}\n// so that \"lookup\" can be used both as a function (e.g. `io(...)`) and as a\n// namespace (e.g. `io.connect(...)`), for backward compatibility\nObject.assign(lookup, {\n    Manager,\n    Socket,\n    io: lookup,\n    connect: lookup,\n});\n/**\n * Protocol version.\n *\n * @public\n */\nexport { protocol } from \"socket.io-parser\";\n/**\n * Expose constructors for standalone build.\n *\n * @public\n */\nexport { Manager, Socket, lookup as io, lookup as connect, lookup as default, };\n", "/** A zero dependency web component that will display a managed uibuilder variable.\n *\n * Version: 1.0.1 2023-12-27\n */\n/*\n  Copyright (c) 2023-2024 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n// const template = document.createElement('template')\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<link type=\"text/css\" rel=\"stylesheet\" href=\"\"../uibuilder/uib-brand.min.css\"\" media=\"all\"><span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`\n// {/* <style>@import url(\"../uibuilder/uib-brand.min.css\");</style><span></span> */}\n// `\n\nexport default class UibVar extends HTMLElement {\n    //#region --- Class Properties ---\n    /** @type {string} Name of the uibuilder mangaged variable to use */\n    variable\n    /** Current value of the watched variable */\n    value\n    /** Whether to output if the variable is undefined */\n    undef = false\n    /** Whether to send update value to Node-RED on change */\n    report = false\n    /** What is the value type */\n    type = 'plain'\n    /** what are the available types? */\n    types = ['plain', 'html', 'markdown', 'object']\n    /** Holds uibuilder.onTopic listeners */\n    topicMonitors = {}\n    /** Is UIBUILDER loaded? */\n    uib = !!window['uibuilder']\n\n    /** Mini jQuery-like shadow dom selector (see constructor) */\n    $\n\n    /** Holds a count of how many instances of this component are on the page */\n    static _iCount = 0\n    /** @type {Array<string>} List of all of the html attribs (props) listened to */\n    static props = ['filter', 'id', 'name', 'report', 'topic', 'type', 'undefined', 'variable',]\n    //#endregion --- Class Properties ---\n\n    constructor() {\n        super()\n        this.shadow = this.attachShadow({ mode: 'open', delegatesFocus: true })\n        //  .append(template.content.cloneNode(true))\n\n        this.$ = this.shadowRoot.querySelector.bind(this.shadowRoot)\n\n        // Apply external styles to the shadow dom - assumes you use index.css in same url location as main url\n        this.css = document.createElement('link')\n        this.css.setAttribute('type', 'text/css')\n        this.css.setAttribute('rel', 'stylesheet')\n        this.css.setAttribute('href', './index.css')\n\n        this.dispatchEvent(new Event('uib-var:construction', { bubbles: true, composed: true }))\n    }\n\n    // Makes HTML attribute change watched\n    static get observedAttributes() {\n        return UibVar.props\n    }\n\n    /** Handle watched attributes\n     * NOTE: On initial startup, this is called for each watched attrib set in HTML - BEFORE connectedCallback is called.\n     * Attribute values can only ever be strings\n     * @param {string} attrib The name of the attribute that is changing\n     * @param {string} newVal The new value of the attribute\n     * @param {string} oldVal The old value of the attribute\n     */\n    attributeChangedCallback(attrib, oldVal, newVal) {\n        if ( oldVal === newVal ) return\n\n        switch (attrib) {\n            case 'variable': {\n                // NB Doesn't check if var exists because it might not be set yet\n                if (newVal === '') throw new Error('[uib-var] Attribute \"variable\" MUST be set to a UIBUILDER managed variable name')\n                this.variable = newVal\n                this.doWatch()\n                break\n            }\n            case 'undefined': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.undef = true\n                else this.undef = false\n                break\n            }\n            case 'report': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.report = true\n                else this.report = false\n                break\n            }\n            case 'type': {\n                if (newVal === '' || !this.types.includes(newVal.toLowerCase())) this.type = 'plain'\n                else this.type = newVal\n                break\n            }\n            case 'topic': {\n                // console.log(1, attrib, newVal)\n                // Handle empty topic\n                if (!newVal) break\n                // Ignore if not using uibuilder\n                if (!this.uib) break\n                // If variable attrib set, give warning and ignore\n                if (this.variable) {\n                    console.warn('\u26A0\uFE0F [uib-var] Cannot process both variable and topic attributes, use only 1. Using variable')\n                    break\n                }\n\n                this.topic = newVal\n\n                // Cancel old listener just in case\n                if (this.topicMonitors[newVal]) uibuilder.cancelTopic(newVal, this.topicMonitors[newVal])\n                // Set up a uibuilder listener for this topic - ASSUMES msg.payload contains the VALUE to show\n                this.topicMonitors[newVal] = uibuilder.onTopic(newVal, (msg) => {\n                    // console.log('topicMonitor ', newVal, msg)\n                    this.value = msg.payload\n                    this.varDom()\n                    if (this.report === true) window['uibuilder'].send({ topic: this.variable, payload: this.value || undefined })\n                })\n                this.varDom()\n\n                break\n            }\n            case 'filter': {\n                this.filter = undefined\n                this.filterArgs = []\n\n                // Handle empty filter\n                if (!newVal) break\n\n                this.filter = newVal\n\n                // Filter the input - at least limit the length of the attr\n                newVal = newVal.slice(0, 127)\n                // Remove spaces and then separate fn name from potential extra arguments\n                const f = newVal.replace(/\\s/g, '').match(/([a-zA-Z_$][a-zA-Z_$0-9.-]+)(\\((.*)\\))?/)\n                if (!f) {\n                    console.warn(`\u26A0\uFE0F [uib-var] Filter function \"${newVal}\" invalid. Cannot process.`)\n                    break\n                }\n                // Fn name\n                this.filter = f[1]\n                // Fn arguments\n                if (f[3]) { // undefined if no args found\n                    // TODO Do we really want to try this?\n                    try {\n                        this.filterArgs = JSON.parse(f[3])\n                    } catch (e) {}\n\n                    this.filterArgs = f[3].split(',').map((x) => {\n                        // No objects/arrays allowed - if they have a , they are split\n                        x = x.trim()\n                        // @ts-ignore NB: Do NOT use Number.isNaN here, it is too narrow minded\n                        if (isNaN(x)) {\n                            // String inside string ends up double quoted so remove those\n                            let y = x.replace(/^[\"'`]/, '').replace(/[\"'`]$/, '')\n                            // Attempt very limited parse in case it is valid object/array\n                            try {\n                                y = new Function(`return ${y}`)() // eslint-disable-line no-new-func\n                            } catch (e) {}\n                            return y\n                        }\n                        return Number(x)\n                    })\n                }\n\n                // Apply the filter directly if neither variable nor topic attribs set\n                if (!this.variable && !this.topic) this.varDom(false)\n                break\n            }\n\n            default: {\n                this[attrib] = newVal\n                break\n            }\n        }\n    } // --- end of attributeChangedCallback --- //\n\n    // Runs when an instance is added to the DOM\n    connectedCallback() {\n        // Make sure instance has an ID. Create an id from name or calculation if needed\n        if (!this.id) {\n            if (!this.name) this.name = this.getAttribute('name')\n            if (this.name) this.id = this.name.toLowerCase().replace(/\\s/g, '_')\n            else this.id = `uib-var-${++UibVar._iCount}`\n        }\n    }  // ---- end of connectedCallback ---- //\n\n    // Runs when an instance is removed from the DOM\n    disconnectedCallback() {\n        // Ignore if not using uibuilder\n        if (this.uib) {\n            Object.keys(this.topicMonitors).forEach( topic => {\n                uibuilder.cancelTopic(topic, this.topicMonitors[topic])\n            })\n        }\n    } // ---- end of disconnectedCallback ---- //\n\n    /** Process changes to the required uibuilder variable */\n    doWatch() {\n        if (!this.variable) throw new Error('No variable name provided')\n        // if (!this.uib) throw new Error('UIBUILDER client library not loaded - this component must be loaded AFTER the UIBUILDER library')\n\n        this.value = window['uibuilder'].get(this.variable)\n        this.varDom()\n\n        // Watch for changes in the variable\n        window['uibuilder'].onChange(this.variable, (val) => {\n            this.value = val\n            this.varDom()\n            if (this.report === true) window['uibuilder'].send({ topic: this.variable, payload: this.value || undefined })\n        })\n    }\n\n    /** Convert this.value to DOM output (applies output filter if needed)\n     * @param {boolean} chkVal If true (default), check for undefined value. False used to run filter even with no value set.\n     */\n    varDom(chkVal = true) {\n        // If user doesn't want to show undefined vars, allow the component slot to show instead\n        if (chkVal === true && !this.value && this.undef !== true) {\n            this.shadow.innerHTML = '<slot></slot>'\n            return\n        }\n\n        // Apply the filter to the value before display\n        const val = chkVal ? this.doFilter(this.value) : this.doFilter()\n\n        // console.log('\uD83E\uDDEA varDOM: ', val, typeof val, this.type)\n\n        let out = val\n\n        switch (this.type) {\n            case 'markdown': {\n                if (this.uib) out = window['uibuilder'].convertMarkdown(val)\n                break\n            }\n\n            case 'object': {\n                // console.log(window['uibuilder'].syntaxHighlight(val))\n                out = `<pre class=\"syntax-highlight\">${this.uib ? window['uibuilder'].syntaxHighlight(val) : val}</pre>`\n                break\n            }\n\n            case 'plain':\n            case 'html':\n            default: {\n                const t = typeof val\n                if (Array.isArray(val) || t === '[object Object]' || t === 'object') {\n                    try {\n                        out = JSON.stringify(val)\n                    } catch (e) {}\n                }\n                break\n            }\n        }\n        if (this.uib) this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(out)\n        else this.shadow.innerHTML = out\n\n        this.shadow.appendChild(this.css)\n    }\n\n    /** Apply value filter if specified\n     * @param {*} value The value to change\n     * @returns {*} The amended value that will be displayed\n     */\n    doFilter(value) {\n        if (this.filter) {\n            // Cater for dotted notation functions (e.g. uibuilder.get)\n            const splitFilter = this.filter.split('.')\n            let globalFn = globalThis[splitFilter[0]]\n            if (globalFn && splitFilter.length > 1) {\n                const parts = [splitFilter.pop()]\n                parts.forEach( part => {\n                    globalFn = globalFn[part]\n                } )\n            }\n            if (!globalFn && this.uib === true) globalFn = globalThis['uibuilder'][splitFilter[0]]\n            if (globalFn && typeof globalFn !== 'function' ) globalFn = undefined\n            if (globalFn) {\n                const argList = value === undefined ? [...this.filterArgs] : [value, ...this.filterArgs]\n                value = Reflect.apply(globalFn, value ?? globalFn, argList)\n            } else {\n                console.warn(`\u26A0\uFE0F [uib-var] Filter function \"${this.filter}\" ${typeof globalFn === 'object' ? 'is an object not a function' : 'not found'}`)\n            }\n        }\n\n        return value\n    }\n}\n\n// Add the class as a new Custom Element to the window object\n// customElements.define('uib-var', UibVar)\n"],
+  "mappings": 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"expectedLength", "isBinary", "headerArray", "n", "ERROR_PACKET", "data", "protocol", "Emitter", "obj", "mixin", "key", "event", "fn", "on", "callbacks", "cb", "i", "args", "len", "globalThisShim", "pick", "obj", "attr", "acc", "k", "NATIVE_SET_TIMEOUT", "globalThisShim", "NATIVE_CLEAR_TIMEOUT", "installTimerFunctions", "opts", "BASE64_OVERHEAD", "byteLength", "utf8Length", "str", "c", "length", "l", "encode", "obj", "str", "i", "decode", "qs", "qry", "pairs", "l", "pair", "TransportError", "reason", "description", "context", "Transport", "Emitter", "opts", "installTimerFunctions", "packets", "data", "packet", "decodePacket", "details", "onPause", "schema", "query", "hostname", "encodedQuery", "encode", "alphabet", "length", "map", "seed", "i", "prev", "encode", "num", "encoded", "yeast", "now", "encode", "prev", "seed", "i", "length", "map", "alphabet", "value", "hasCORS", "XHR", "opts", "xdomain", "hasCORS", "globalThisShim", "empty", "hasXHR2", "XHR", "Polling", "Transport", "opts", "isSSL", "port", "forceBase64", "onPause", "pause", "total", "data", "callback", "packet", "decodePayload", "close", "packets", "encodePayload", "schema", "query", "yeast", "Request", "fn", "req", "xhrStatus", "context", "_Request", "Emitter", "uri", "installTimerFunctions", "_a", "pick", "xhr", "i", "e", "err", "fromError", "unloadHandler", "terminationEvent", "globalThisShim", "nextTick", "cb", "setTimeoutFn", "WebSocket", "globalThisShim", "usingBrowserWebSocket", "defaultBinaryType", "isReactNative", "WS", "Transport", "opts", "uri", "protocols", "pick", "usingBrowserWebSocket", "WebSocket", "err", "closeEvent", "ev", "packets", "i", "packet", "lastPacket", "encodePacket", "data", "nextTick", "schema", "query", "yeast", "WT", "Transport", "err", "stream", "decoderStream", "createPacketDecoderStream", "reader", "encoderStream", "createPacketEncoderStream", "read", "done", "value", "packet", "packets", "i", "lastPacket", "nextTick", "_a", "transports", "WS", "WT", "Polling", "re", "parts", "parse", "str", "src", "b", "e", "m", "uri", "i", "pathNames", "queryKey", "obj", "path", "regx", "names", "query", "data", "$0", "$1", "$2", "Socket", "_Socket", "Emitter", "uri", "opts", "defaultBinaryType", "parse", "installTimerFunctions", "decode", "name", "query", "protocol", "transports", "transport", "reason", "failed", "onTransportOpen", "msg", "cleanup", "err", "freezeTransport", "onerror", "error", "onTransportClose", "onclose", "onupgrade", "to", "i", "l", "packet", "data", "packets", "payloadSize", "byteLength", "options", "fn", "type", "close", "cleanupAndClose", "waitForUpgrade", "description", "upgrades", "filteredUpgrades", "j", "protocol", "Socket", "url", "uri", "path", "loc", "obj", "parse", "host", "esm_exports", "__export", "Decoder", "Encoder", "PacketType", "protocol", "withNativeArrayBuffer", "isView", "obj", "toString", "withNativeBlob", "withNativeFile", "isBinary", "hasBinary", "toJSON", "i", "l", "key", "deconstructPacket", "packet", "buffers", "packetData", "pack", "_deconstructPacket", "data", "isBinary", "placeholder", "newData", "key", "reconstructPacket", "_reconstructPacket", "i", "RESERVED_EVENTS", "protocol", "PacketType", "Encoder", "replacer", "obj", "hasBinary", "str", "deconstruction", "deconstructPacket", "pack", "buffers", "isObject", "value", "Decoder", "_Decoder", "Emitter", "reviver", "packet", "isBinaryEvent", "BinaryReconstructor", "isBinary", "i", "p", "start", "buf", "next", "c", "payload", "type", "binData", "reconstructPacket", "on", "obj", "ev", "fn", "RESERVED_EVENTS", "Socket", "Emitter", "io", "nsp", "opts", "on", "args", "ev", "packet", "PacketType", "id", "ack", "isTransportWritable", "_a", "timeout", "timer", "i", "withErr", "resolve", "reject", "arg1", "arg2", "err", "responseArgs", "force", "data", "reason", "description", "listeners", "listener", "self", "sent", "pid", "subDestroy", "compress", "Backoff", "opts", "ms", "rand", "deviation", "min", "max", "jitter", "Manager", "Emitter", "uri", "opts", "_a", "installTimerFunctions", "Backoff", "_parser", "esm_exports", "v", "fn", "Socket", "socket", "self", "openSubDestroy", "on", "onError", "err", "errorSub", "timeout", "timer", "data", "e", "packet", "nextTick", "nsp", "nsps", "encodedPackets", "subDestroy", "reason", "description", "delay", "attempt", "cache", "lookup", "uri", "opts", "parsed", "url", "source", "id", "path", "sameNamespace", "newConnection", "io", "Manager", "Socket", "_UibVar", "__publicField", "attrib", "oldVal", "newVal", "msg", "f", "x", "y", "topic", "val", "chkVal", "out", "t", "value", "splitFilter", "globalFn", "part", "argList", "UibVar", "version", "isMinified", "param", "logLevel", "LOG_STYLES", "log", "args", "level", "strLevel", "head", "makeMeAnObject", "thing", "property", "out", "urlJoin", "e", "syntaxHighlight", "json", "match", "cls", "_ui", "Ui", "_a", "_pingInterval", "_propChangeCallbacks", "_msgRecvdByTopicCallbacks", "_timerid", "_MsgHandler", "_isShowMsg", "_isShowStatus", "_sendUrlHash", "_extCommands", "_managedVars", "_showStatus", "_uiObservers", "Uib", "__publicField", "__privateAdd", "cb", "c", "splitC", "event", "__privateGet", "fullPath", "autoloadVars", "id", "prop", "val", "store", "autoload", "value", "autoVars", "title", "details", "callback", "nextCbRef", "propChangeCallback", "cbRef", "topic", "msgRecvdEvtCallback", "msg", "receivedMsg", "serverTimestamp", "offset", "originator", "ms", "oReq", "headers", "elapsedTime", "__privateSet", "varToCopy", "data", "cssSelector", "el", "exists", "url", "deflt", "ret", "toggle", "decimalPlaces", "intl", "opts", "mdText", "uiOptions", "textFn", "component", "html", "type", "ui", "propName", "showHide", "parent", "slot", "config", "res", "err", "root", "entry", "startStop", "send", "showLog", "targetNode", "that", "mutationList", "mu", "oMu", "an", "i", "htmlCache", "receivedCtrlMsg", "obj", "r", "msgToSend", "channel", "numMsgs", "cmd", "quiet", "response", "info", "newUrl", "txtToSend", "domevent", "target", "props", "key", "ignoreAttribs", "attribs", "name", "form", "frmVals", "frmEl", "v", "classes", "payload", "nprops", "room", "ioNamespace", "u", "t", "delay", "factor", "depth", "reason", "lookup", "options", "eMsg", "uibuilder", "uibuilder_module_default", "uibuilder", "UibVar"]
 }
diff --git a/front-end/uibuilder.iife.js b/front-end/uibuilder.iife.js
index 4a5da8a7..d32a5693 100644
--- a/front-end/uibuilder.iife.js
+++ b/front-end/uibuilder.iife.js
@@ -1082,146 +1082,6 @@
   // src/front-end-module/uibuilder.module.js
   var import_ui = __toESM(require_ui());
 
-  // src/components/uib-var.js
-  var _UibVar = class _UibVar extends HTMLElement {
-    //#endregion --- Class Properties ---
-    constructor() {
-      super();
-      //#region --- Class Properties ---
-      /** @type {string} Name of the uibuilder mangaged variable to use */
-      __publicField(this, "variable");
-      /** Current value of the watched variable */
-      __publicField(this, "value");
-      /** Whether to output if the variable is undefined */
-      __publicField(this, "undefined", false);
-      /** Whether to send update value to Node-RED on change */
-      __publicField(this, "report", false);
-      /** What is the value type */
-      __publicField(this, "type", "plain");
-      /** what are the available types? */
-      __publicField(this, "types", ["plain", "html", "markdown", "object"]);
-      /** Mini jQuery-like shadow dom selector (see constructor) */
-      __publicField(this, "$");
-      this.shadow = this.attachShadow({ mode: "open", delegatesFocus: true });
-      this.$ = this.shadowRoot.querySelector.bind(this.shadowRoot);
-      this.css = document.createElement("link");
-      this.css.setAttribute("type", "text/css");
-      this.css.setAttribute("rel", "stylesheet");
-      this.css.setAttribute("href", "../uibuilder/uib-brand.min.css");
-      this.dispatchEvent(new Event(`uib-var:construction`, { bubbles: true, composed: true }));
-    }
-    // Makes HTML attribute change watched
-    static get observedAttributes() {
-      return _UibVar.props;
-    }
-    /** NOTE: On initial startup, this is called for each watched attrib set in HTML - BEFORE connectedCallback is called  */
-    attributeChangedCallback(attrib, oldVal, newVal) {
-      if (oldVal === newVal)
-        return;
-      switch (attrib) {
-        case "variable": {
-          if (newVal === "")
-            throw new Error('[uib-var] Attribute "variable" MUST be set to a UIBUILDER managed variable name');
-          this.variable = newVal;
-          this.doWatch();
-          break;
-        }
-        case "undefined": {
-          if (newVal === "" || ["on", "true", "report"].includes(newVal.toLowerCase()))
-            this.undefined = true;
-          else
-            this.undefined = false;
-          break;
-        }
-        case "report": {
-          if (newVal === "" || ["on", "true", "report"].includes(newVal.toLowerCase()))
-            this.report = true;
-          else
-            this.report = false;
-          break;
-        }
-        case "type": {
-          if (newVal === "" || !this.types.includes(newVal.toLowerCase()))
-            this.type = "plain";
-          else
-            this.type = newVal;
-          break;
-        }
-        default: {
-          this[attrib] = newVal;
-          break;
-        }
-      }
-    }
-    // --- end of attributeChangedCallback --- //
-    // Runs when an instance is added to the DOM
-    connectedCallback() {
-      if (!this.id) {
-        if (!this.name)
-          this.name = this.getAttribute("name");
-        if (this.name)
-          this.id = this.name.toLowerCase().replace(/\s/g, "_");
-        else
-          this.id = `uib-var-${++_UibVar._iCount}`;
-      }
-    }
-    // ---- end of connectedCallback ---- //
-    // Runs when an instance is removed from the DOM
-    // disconnectedCallback() {} // ---- end of disconnectedCallback ---- //
-    /** Process changes to the required uibuilder variable */
-    doWatch() {
-      if (!this.variable)
-        throw new Error("No variable name provided");
-      this.value = window["uibuilder"].get(this.variable);
-      this.varDom();
-      window["uibuilder"].onChange(this.variable, (val) => {
-        this.value = val;
-        this.varDom();
-        if (this.report === true)
-          window["uibuilder"].send({ topic: this.variable, payload: this.value || void 0 });
-      });
-    }
-    /** Convert this.value to DOM output */
-    varDom() {
-      if (this.value === void 0 && this.undefined !== true) {
-        this.shadow.innerHTML = "<slot></slot>";
-        return;
-      }
-      let val = this.value;
-      switch (this.type) {
-        case "markdown": {
-          this.shadow.innerHTML = window["uibuilder"].sanitiseHTML(window["uibuilder"].convertMarkdown(val));
-          break;
-        }
-        case "object": {
-          this.shadow.innerHTML = `<pre class="syntax-highlight">${window["uibuilder"].syntaxHighlight(val)}</pre>`;
-          break;
-        }
-        case "plain":
-        case "html":
-        default: {
-          const t = typeof val;
-          if (Array.isArray(val) || t === "[object Object]" || t === "object") {
-            try {
-              this.shadow.innerHTML = JSON.stringify(val);
-            } catch (e) {
-              this.shadow.innerHTML = val;
-            }
-          } else {
-            this.shadow.innerHTML = val;
-          }
-          break;
-        }
-      }
-      this.shadow.appendChild(this.css);
-    }
-  };
-  /** Holds a count of how many instances of this component are on the page */
-  __publicField(_UibVar, "_iCount", 0);
-  /** @type {Array<string>} List of all of the html attribs (props) listened to */
-  __publicField(_UibVar, "props", ["name", "id", "variable", "undefined", "report", "type"]);
-  var UibVar = _UibVar;
-
   // node_modules/engine.io-parser/build/esm/commons.js
   var PACKET_TYPES = /* @__PURE__ */ Object.create(null);
   PACKET_TYPES["open"] = "0";
@@ -4536,6 +4396,251 @@
     connect: lookup2
   });
 
+  // src/components/uib-var.js
+  var _UibVar = class _UibVar extends HTMLElement {
+    //#endregion --- Class Properties ---
+    constructor() {
+      super();
+      //#region --- Class Properties ---
+      /** @type {string} Name of the uibuilder mangaged variable to use */
+      __publicField(this, "variable");
+      /** Current value of the watched variable */
+      __publicField(this, "value");
+      /** Whether to output if the variable is undefined */
+      __publicField(this, "undef", false);
+      /** Whether to send update value to Node-RED on change */
+      __publicField(this, "report", false);
+      /** What is the value type */
+      __publicField(this, "type", "plain");
+      /** what are the available types? */
+      __publicField(this, "types", ["plain", "html", "markdown", "object"]);
+      /** Holds uibuilder.onTopic listeners */
+      __publicField(this, "topicMonitors", {});
+      /** Is UIBUILDER loaded? */
+      __publicField(this, "uib", !!window["uibuilder"]);
+      /** Mini jQuery-like shadow dom selector (see constructor) */
+      __publicField(this, "$");
+      this.shadow = this.attachShadow({ mode: "open", delegatesFocus: true });
+      this.$ = this.shadowRoot.querySelector.bind(this.shadowRoot);
+      this.css = document.createElement("link");
+      this.css.setAttribute("type", "text/css");
+      this.css.setAttribute("rel", "stylesheet");
+      this.css.setAttribute("href", "./index.css");
+      this.dispatchEvent(new Event("uib-var:construction", { bubbles: true, composed: true }));
+    }
+    // Makes HTML attribute change watched
+    static get observedAttributes() {
+      return _UibVar.props;
+    }
+    /** Handle watched attributes
+     * NOTE: On initial startup, this is called for each watched attrib set in HTML - BEFORE connectedCallback is called.
+     * Attribute values can only ever be strings
+     * @param {string} attrib The name of the attribute that is changing
+     * @param {string} newVal The new value of the attribute
+     * @param {string} oldVal The old value of the attribute
+     */
+    attributeChangedCallback(attrib, oldVal, newVal) {
+      if (oldVal === newVal)
+        return;
+      switch (attrib) {
+        case "variable": {
+          if (newVal === "")
+            throw new Error('[uib-var] Attribute "variable" MUST be set to a UIBUILDER managed variable name');
+          this.variable = newVal;
+          this.doWatch();
+          break;
+        }
+        case "undefined": {
+          if (newVal === "" || ["on", "true", "report"].includes(newVal.toLowerCase()))
+            this.undef = true;
+          else
+            this.undef = false;
+          break;
+        }
+        case "report": {
+          if (newVal === "" || ["on", "true", "report"].includes(newVal.toLowerCase()))
+            this.report = true;
+          else
+            this.report = false;
+          break;
+        }
+        case "type": {
+          if (newVal === "" || !this.types.includes(newVal.toLowerCase()))
+            this.type = "plain";
+          else
+            this.type = newVal;
+          break;
+        }
+        case "topic": {
+          if (!newVal)
+            break;
+          if (!this.uib)
+            break;
+          if (this.variable) {
+            console.warn("\u26A0\uFE0F [uib-var] Cannot process both variable and topic attributes, use only 1. Using variable");
+            break;
+          }
+          this.topic = newVal;
+          if (this.topicMonitors[newVal])
+            uibuilder.cancelTopic(newVal, this.topicMonitors[newVal]);
+          this.topicMonitors[newVal] = uibuilder.onTopic(newVal, (msg) => {
+            this.value = msg.payload;
+            this.varDom();
+            if (this.report === true)
+              window["uibuilder"].send({ topic: this.variable, payload: this.value || void 0 });
+          });
+          this.varDom();
+          break;
+        }
+        case "filter": {
+          this.filter = void 0;
+          this.filterArgs = [];
+          if (!newVal)
+            break;
+          this.filter = newVal;
+          newVal = newVal.slice(0, 127);
+          const f = newVal.replace(/\s/g, "").match(/([a-zA-Z_$][a-zA-Z_$0-9.-]+)(\((.*)\))?/);
+          if (!f) {
+            console.warn(`\u26A0\uFE0F [uib-var] Filter function "${newVal}" invalid. Cannot process.`);
+            break;
+          }
+          this.filter = f[1];
+          if (f[3]) {
+            try {
+              this.filterArgs = JSON.parse(f[3]);
+            } catch (e) {
+            }
+            this.filterArgs = f[3].split(",").map((x) => {
+              x = x.trim();
+              if (isNaN(x)) {
+                let y = x.replace(/^["'`]/, "").replace(/["'`]$/, "");
+                try {
+                  y = new Function(`return ${y}`)();
+                } catch (e) {
+                }
+                return y;
+              }
+              return Number(x);
+            });
+          }
+          if (!this.variable && !this.topic)
+            this.varDom(false);
+          break;
+        }
+        default: {
+          this[attrib] = newVal;
+          break;
+        }
+      }
+    }
+    // --- end of attributeChangedCallback --- //
+    // Runs when an instance is added to the DOM
+    connectedCallback() {
+      if (!this.id) {
+        if (!this.name)
+          this.name = this.getAttribute("name");
+        if (this.name)
+          this.id = this.name.toLowerCase().replace(/\s/g, "_");
+        else
+          this.id = `uib-var-${++_UibVar._iCount}`;
+      }
+    }
+    // ---- end of connectedCallback ---- //
+    // Runs when an instance is removed from the DOM
+    disconnectedCallback() {
+      if (this.uib) {
+        Object.keys(this.topicMonitors).forEach((topic) => {
+          uibuilder.cancelTopic(topic, this.topicMonitors[topic]);
+        });
+      }
+    }
+    // ---- end of disconnectedCallback ---- //
+    /** Process changes to the required uibuilder variable */
+    doWatch() {
+      if (!this.variable)
+        throw new Error("No variable name provided");
+      this.value = window["uibuilder"].get(this.variable);
+      this.varDom();
+      window["uibuilder"].onChange(this.variable, (val) => {
+        this.value = val;
+        this.varDom();
+        if (this.report === true)
+          window["uibuilder"].send({ topic: this.variable, payload: this.value || void 0 });
+      });
+    }
+    /** Convert this.value to DOM output (applies output filter if needed)
+     * @param {boolean} chkVal If true (default), check for undefined value. False used to run filter even with no value set.
+     */
+    varDom(chkVal = true) {
+      if (chkVal === true && !this.value && this.undef !== true) {
+        this.shadow.innerHTML = "<slot></slot>";
+        return;
+      }
+      const val = chkVal ? this.doFilter(this.value) : this.doFilter();
+      let out = val;
+      switch (this.type) {
+        case "markdown": {
+          if (this.uib)
+            out = window["uibuilder"].convertMarkdown(val);
+          break;
+        }
+        case "object": {
+          out = `<pre class="syntax-highlight">${this.uib ? window["uibuilder"].syntaxHighlight(val) : val}</pre>`;
+          break;
+        }
+        case "plain":
+        case "html":
+        default: {
+          const t = typeof val;
+          if (Array.isArray(val) || t === "[object Object]" || t === "object") {
+            try {
+              out = JSON.stringify(val);
+            } catch (e) {
+            }
+          }
+          break;
+        }
+      }
+      if (this.uib)
+        this.shadow.innerHTML = window["uibuilder"].sanitiseHTML(out);
+      else
+        this.shadow.innerHTML = out;
+      this.shadow.appendChild(this.css);
+    }
+    /** Apply value filter if specified
+     * @param {*} value The value to change
+     * @returns {*} The amended value that will be displayed
+     */
+    doFilter(value2) {
+      if (this.filter) {
+        const splitFilter = this.filter.split(".");
+        let globalFn = globalThis[splitFilter[0]];
+        if (globalFn && splitFilter.length > 1) {
+          const parts2 = [splitFilter.pop()];
+          parts2.forEach((part) => {
+            globalFn = globalFn[part];
+          });
+        }
+        if (!globalFn && this.uib === true)
+          globalFn = globalThis["uibuilder"][splitFilter[0]];
+        if (globalFn && typeof globalFn !== "function")
+          globalFn = void 0;
+        if (globalFn) {
+          const argList = value2 === void 0 ? [...this.filterArgs] : [value2, ...this.filterArgs];
+          value2 = Reflect.apply(globalFn, value2 ?? globalFn, argList);
+        } else {
+          console.warn(`\u26A0\uFE0F [uib-var] Filter function "${this.filter}" ${typeof globalFn === "object" ? "is an object not a function" : "not found"}`);
+        }
+      }
+      return value2;
+    }
+  };
+  /** Holds a count of how many instances of this component are on the page */
+  __publicField(_UibVar, "_iCount", 0);
+  /** @type {Array<string>} List of all of the html attribs (props) listened to */
+  __publicField(_UibVar, "props", ["filter", "id", "name", "report", "topic", "type", "undefined", "variable"]);
+  var UibVar = _UibVar;
+
   // src/front-end-module/uibuilder.module.js
   var version = "6.8.0-iife";
   var isMinified = !/param/.test(function(param) {
@@ -4717,7 +4822,6 @@
   var _ui = new import_ui.default(window, log, syntaxHighlight);
   var _a, _pingInterval, _propChangeCallbacks, _msgRecvdByTopicCallbacks, _timerid, _MsgHandler, _isShowMsg, _isShowStatus, _sendUrlHash, _extCommands, _managedVars, _showStatus, _uiObservers;
   var Uib = (_a = class {
-    // ---- End of ioSetup ---- //
     //#endregion -------- ------------ -------- //
     //#region ------- Class construction & startup method -------- //
     constructor() {
@@ -5404,6 +5508,36 @@
         window.location.href = url2;
       return window.location;
     }
+    /** Format a number using the INTL standard library - compatible with uib-var filter function
+     * @param {number} value Number to format
+     * @param {number} decimalPlaces Number of decimal places to include. Default=no default
+     * @param {string} intl standard locale spec, e.g. "ja-JP" or "en-GB". Default=navigator.language
+     * @param {object} opts INTL library options object. Optional
+     * @returns {string} formatted number
+     * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/toLocaleString
+     */
+    formatNumber(value2, decimalPlaces, intl, opts) {
+      if (isNaN(value2)) {
+        log("error", "formatNumber", `Value must be a number. Value type: "${typeof value2}"`)();
+        return "NaN";
+      }
+      if (!opts)
+        opts = {};
+      if (!intl)
+        intl = navigator.language ? navigator.language : "en-GB";
+      if (decimalPlaces) {
+        opts.minimumFractionDigits = decimalPlaces;
+        opts.maximumFractionDigits = decimalPlaces;
+      }
+      let out;
+      try {
+        out = Number(value2).toLocaleString(intl, opts);
+      } catch (e) {
+        log("error", "formatNumber", `${e.message}. value=${value2}, dp=${decimalPlaces}, intl="${intl}", opts=${JSON.stringify(opts)}`)();
+        return "NaN";
+      }
+      return out;
+    }
     /** Converts markdown text input to HTML if the Markdown-IT library is loaded
      * Otherwise simply returns the text
      * @param {string} mdText The input markdown string
@@ -6329,6 +6463,23 @@ ${document.documentElement.outerHTML}`;
     send(msg, originator = "") {
       this._send(msg, this._ioChannels.client, originator);
     }
+    // ! TODO: Rooms do not auto-reconnect. Add tracking and update _onConnect
+    // NOTE: Rooms only understood by server not client so we have to use custom emits
+    //       They do not auto-reconnect
+    /** Send a msg to a pre-defined Socket.IO room
+     * @link https://socket.io/docs/v4/rooms/
+     * @param {string} room Name of a Socket.IO pre-defined room.
+     * @param {*} msg Message to send
+     */
+    sendRoom(room, msg) {
+      this._socket.emit("uib-room-send", room, msg);
+    }
+    joinRoom(room) {
+      this._socket.emit("uib-room-join", room);
+    }
+    leaveRoom(room) {
+      this._socket.emit("uib-room-leave", room);
+    }
     /** Send a control msg to NR
      * @param {object} msg Message to send
      */
@@ -6393,7 +6544,7 @@ ${document.documentElement.outerHTML}`;
         window.clearTimeout(__privateGet(this, _timerid));
       __privateSet(this, _timerid, window.setTimeout(() => {
         log("warn", "Uib:checkConnect:setTimeout", `Socket.IO reconnection attempt. Current delay: ${delay}. Depth: ${depth}`)();
-        this._socket.close();
+        this._socket.disconnect();
         this._socket.connect();
         __privateSet(this, _timerid, null);
         this._checkConnect(delay * factor, factor, depth++);
@@ -6440,6 +6591,7 @@ Namespace: ${this.ioNamespace}`)();
       this.socketOptions.path = this.ioPath;
       log("trace", "Uib:ioSetup", `About to create IO object. Transports: [${this.socketOptions.transports.join(", ")}]`)();
       this._socket = lookup2(this.ioNamespace, this.socketOptions);
+      this._connectGlobal();
       this._socket.on("connect", this._onConnect.bind(this));
       this._socket.on(this._ioChannels.server, this._stdMsgFromServer.bind(this));
       this._socket.on(this._ioChannels.control, this._ctrlMsgFromServer.bind(this));
@@ -6461,6 +6613,24 @@ Namespace: ${this.ioNamespace}`)();
       this._checkConnect();
       return true;
     }
+    // ---- End of ioSetup ---- //
+    /** Connect to global namespace & create global listener that updates the `globalMsg` var */
+    _connectGlobal() {
+      this._socketGlobal = lookup2("/", this.socketOptions);
+      this._socketGlobal.onAny((...args) => {
+        this.set("globalMsg", args.slice(0, -1));
+      });
+    }
+    /** Manually (re)connect socket.io */
+    connect() {
+      this._socket.connect();
+    }
+    /** Manually disconnect socket.io and stop any auto-reconnect timer */
+    disconnect() {
+      this._socket.disconnect();
+      if (__privateGet(this, _timerid))
+        window.clearTimeout(__privateGet(this, _timerid));
+    }
     /** Start up Socket.IO comms and listeners
      * This has to be done separately because if running from a web page in a sub-folder of src/dist, uibuilder cannot
      * necessarily work out the correct ioPath to use.
@@ -6544,14 +6714,14 @@ ioPath: ${this.ioPath}`)();
     type: "module",
     displayName: "uibuilder"
   }), _a);
-  var uibuilder = new Uib();
+  var uibuilder2 = new Uib();
   if (!window["uibuilder"]) {
-    window["uibuilder"] = uibuilder;
+    window["uibuilder"] = uibuilder2;
   } else {
     log("error", "uibuilder.module.js", "`uibuilder` already assigned to window. Have you tried to load it more than once?");
   }
   if (!window["uib"]) {
-    window["uib"] = uibuilder;
+    window["uib"] = uibuilder2;
   } else {
     log("warn", "uibuilder.module.js", "`uib` shortcut already assigned to window.");
   }
@@ -6570,7 +6740,7 @@ ioPath: ${this.ioPath}`)();
   } else {
     log("warn", "uibuilder.module.js", "Cannot allocate the global `$ui`, it is already in use. Use `uibuilder.$ui` or `uib.$ui` instead.");
   }
-  var uibuilder_module_default = uibuilder;
-  uibuilder.start();
+  var uibuilder_module_default = uibuilder2;
+  uibuilder2.start();
   customElements.define("uib-var", UibVar);
 })();
diff --git a/front-end/uibuilder.iife.min.js b/front-end/uibuilder.iife.min.js
index ed556710..c2df4357 100644
--- a/front-end/uibuilder.iife.min.js
+++ b/front-end/uibuilder.iife.min.js
@@ -1,2 +1,2 @@
-(()=>{var _t=Object.create;var le=Object.defineProperty;var Et=Object.getOwnPropertyDescriptor;var Ct=Object.getOwnPropertyNames;var St=Object.getPrototypeOf,xt=Object.prototype.hasOwnProperty;var Ot=(s,e,t)=>e in s?le(s,e,{enumerable:!0,configurable:!0,writable:!0,value:t}):s[e]=t;var De=(s=>typeof require<"u"?require:typeof Proxy<"u"?new Proxy(s,{get:(e,t)=>(typeof require<"u"?require:e)[t]}):s)(function(s){if(typeof require<"u")return require.apply(this,arguments);throw Error('Dynamic require of "'+s+'" is not supported')});var Nt=(s,e)=>()=>(e||s((e={exports:{}}).exports,e),e.exports),Rt=(s,e)=>{for(var t in e)le(s,t,{get:e[t],enumerable:!0})},At=(s,e,t,i)=>{if(e&&typeof e=="object"||typeof e=="function")for(let r of Ct(e))!xt.call(s,r)&&r!==t&&le(s,r,{get:()=>e[r],enumerable:!(i=Et(e,r))||i.enumerable});return s};var Ee=(s,e,t)=>(t=s!=null?_t(St(s)):{},At(e||!s||!s.__esModule?le(t,"default",{value:s,enumerable:!0}):t,s));var l=(s,e,t)=>(Ot(s,typeof e!="symbol"?e+"":e,t),t),Be=(s,e,t)=>{if(!e.has(s))throw TypeError("Cannot "+t)};var d=(s,e,t)=>(Be(s,e,"read from private field"),t?t.call(s):e.get(s)),C=(s,e,t)=>{if(e.has(s))throw TypeError("Cannot add the same private member more than once");e instanceof WeakSet?e.add(s):e.set(s,t)},A=(s,e,t,i)=>(Be(s,e,"write to private field"),i?i.call(s,t):e.set(s,t),t);var qe=Nt((ii,Pe)=>{var f,$t=(f=class{constructor(e,t,i){l(this,"version","6.8.0-src");l(this,"sanitiseExtraTags",["uib-var"]);l(this,"sanitiseExtraAttribs",["variable","report","undefined"]);l(this,"window");if(e)this.window=e;else throw new Error("Ui:constructor. Current environment does not include `window`, UI functions cannot be used.");this.document=this.window.document,t?f.log=t:f.log=function(){return function(){}},i?this.syntaxHighlight=i:this.syntaxHighlight=function(){}}_showNotification(e){e.topic&&!e.title&&(e.title=e.topic),e.title||(e.title="uibuilder notification"),e.payload&&!e.body&&(e.body=e.payload),e.body||(e.body=" No message given.");try{let t=new Notification(e.title,e);return new Promise((i,r)=>{t.addEventListener("close",n=>{n.currentTarget.userAction="close",i(n)}),t.addEventListener("click",n=>{n.currentTarget.userAction="click",i(n)}),t.addEventListener("error",n=>{n.currentTarget.userAction="error",r(n)})})}catch{return Promise.reject(new Error("Browser refused to create a Notification"))}}_uiAdd(e,t){f.log("trace","Ui:_uiManager:add","Starting _uiAdd")(),e.components.forEach((i,r)=>{f.log("trace","Ui:_uiAdd:components-forEach:".concat(r),"Component to add: ",i)();let n;switch(i.type){case"html":{i.ns="html",n=this.document.createElement("div");break}case"svg":{i.ns="svg",n=this.document.createElementNS("http://www.w3.org/2000/svg","svg");break}default:{i.ns="dom",n=this.document.createElement(i.type);break}}!i.slot&&e.payload&&(i.slot=e.payload),this._uiComposeComponent(n,i);let o;i.parentEl?o=i.parentEl:e.parentEl?o=e.parentEl:i.parent?o=this.document.querySelector(i.parent):e.parent&&(o=this.document.querySelector(e.parent)),o||(f.log("info","Ui:_uiAdd","No parent found, adding to body")(),o=this.document.querySelector("body")),i.position&&i.position==="first"?o.insertBefore(n,o.firstChild):i.position&&Number.isInteger(Number(i.position))?o.insertBefore(n,o.children[i.position]):o.appendChild(n),i.components&&this._uiExtendEl(n,i.components,i.ns)})}_uiComposeComponent(e,t){t.attributes&&Object.keys(t.attributes).forEach(i=>{i==="class"&&Array.isArray(t.attributes[i])&&t.attributes[i].join(" "),i==="value"&&(e.value=t.attributes[i]),i.startsWith("xlink:")?e.setAttributeNS("http://www.w3.org/1999/xlink",i,t.attributes[i]):e.setAttribute(i,t.attributes[i])}),t.id&&e.setAttribute("id",t.id),t.type==="svg"&&(e.setAttributeNS("http://www.w3.org/2000/xmlns/","xmlns","http://www.w3.org/2000/svg"),e.setAttributeNS("http://www.w3.org/2000/xmlns/","xmlns:xlink","http://www.w3.org/1999/xlink")),t.events&&Object.keys(t.events).forEach(i=>{i.toLowerCase==="onclick"&&(i="click");try{e.addEventListener(i,r=>{new Function("evt","".concat(t.events[i],"(evt)"))(r)})}catch(r){f.log("error","Ui:_uiComposeComponent","Add event '".concat(i,"' for element '").concat(t.type,"': Cannot add event handler. ").concat(r.message))()}}),t.properties&&Object.keys(t.properties).forEach(i=>{e[i]=t.properties[i]}),t.slot&&this.replaceSlot(e,t),t.slotMarkdown&&this.replaceSlotMarkdown(e,t)}_uiExtendEl(e,t,i=""){t.forEach((r,n)=>{f.log("trace","Ui:_uiExtendEl:components-forEach:".concat(n),r)();let o;r.ns=i,r.ns==="html"?(o=e,e.innerHTML=r.slot):r.ns==="svg"?(o=this.document.createElementNS("http://www.w3.org/2000/svg",r.type),this._uiComposeComponent(o,r),e.appendChild(o)):(o=this.document.createElement(r.type==="html"?"div":r.type),this._uiComposeComponent(o,r),e.appendChild(o)),r.components&&this._uiExtendEl(o,r.components,r.ns)})}_uiLoad(e){e.components&&(Array.isArray(e.components)||(e.components=[e.components]),e.components.forEach(async t=>{await Promise.resolve().then(()=>Ee(De(t)))})),e.srcScripts&&(Array.isArray(e.srcScripts)||(e.srcScripts=[e.srcScripts]),e.srcScripts.forEach(t=>{this.loadScriptSrc(t)})),e.txtScripts&&(Array.isArray(e.txtScripts)||(e.txtScripts=[e.txtScripts]),this.loadScriptTxt(e.txtScripts.join("\n"))),e.srcStyles&&(Array.isArray(e.srcStyles)||(e.srcStyles=[e.srcStyles]),e.srcStyles.forEach(t=>{this.loadStyleSrc(t)})),e.txtStyles&&(Array.isArray(e.txtStyles)||(e.txtStyles=[e.txtStyles]),this.loadStyleTxt(e.txtStyles.join("\n")))}_uiManager(e){e._ui&&(Array.isArray(e._ui)||(e._ui=[e._ui]),e._ui.forEach((t,i)=>{if(!t.method){f.log("error","Ui:_uiManager","No method defined for msg._ui[".concat(i,"]. Ignoring"))();return}switch(t.payload=e.payload,t.topic=e.topic,t.method){case"add":{this._uiAdd(t,!1);break}case"remove":{this._uiRemove(t,!1);break}case"removeAll":{this._uiRemove(t,!0);break}case"replace":{this._uiReplace(t);break}case"update":{this._uiUpdate(t);break}case"load":{this._uiLoad(t);break}case"reload":{this._uiReload();break}case"notify":{this.showDialog("notify",t,e);break}case"alert":{this.showDialog("alert",t,e);break}default:{f.log("error","Ui:_uiManager","Invalid msg._ui[".concat(i,"].method (").concat(t.method,"). Ignoring"))();break}}}))}_uiReload(){f.log("trace","Ui:uiManager:reload","reloading")(),location.reload()}_uiRemove(e,t=!1){e.components.forEach(i=>{let r;t!==!0?r=[this.document.querySelector(i)]:r=this.document.querySelectorAll(i),r.forEach(n=>{try{n.remove()}catch(o){f.log("trace","Ui:_uiRemove","Could not remove. ".concat(o.message))()}})})}_uiReplace(e){f.log("trace","Ui:_uiReplace","Starting")(),e.components.forEach((t,i)=>{f.log("trace","Ui:_uiReplace:components-forEach:".concat(i),"Component to replace: ",t)();let r;if(t.id?r=this.document.getElementById(t.id):t.selector||t.select?r=this.document.querySelector(t.selector):t.name?r=this.document.querySelector('[name="'.concat(t.name,'"]')):t.type&&(r=this.document.querySelector(t.type)),f.log("trace","Ui:_uiReplace:components-forEach:".concat(i),"Element to replace: ",r)(),r==null){f.log("trace","Ui:_uiReplace:components-forEach:".concat(i,":noReplace"),"Cannot find the DOM element. Adding instead.",t)(),this._uiAdd({components:[t]},!1);return}let n;switch(t.type){case"html":{t.ns="html",n=this.document.createElement("div");break}case"svg":{t.ns="svg",n=this.document.createElementNS("http://www.w3.org/2000/svg","svg");break}default:{t.ns="dom",n=this.document.createElement(t.type);break}}this._uiComposeComponent(n,t),r.replaceWith(n),t.components&&this._uiExtendEl(n,t.components,t.ns)})}_uiUpdate(e){f.log("trace","Ui:_uiManager:update","Starting _uiUpdate")(),e.components||(e.components=[Object.assign({},e)]),e.components.forEach((t,i)=>{f.log("trace","_uiUpdate:components-forEach","Component #".concat(i),t)();let r;if(t.id?r=this.document.querySelectorAll("#".concat(t.id)):t.selector||t.select?r=this.document.querySelectorAll(t.selector):t.name?r=this.document.querySelectorAll('[name="'.concat(t.name,'"]')):t.type&&(r=this.document.querySelectorAll(t.type)),r===void 0||r.length<1){f.log("warn","Ui:_uiManager:update","Cannot find the DOM element. Ignoring.",t)();return}f.log("trace","_uiUpdate:components-forEach","Element(s) to update. Count: ".concat(r.length),r)(),!t.slot&&t.payload&&(t.slot=t.payload),r.forEach(n=>{this._uiComposeComponent(n,t)}),t.components&&r.forEach(n=>{f.log("trace","_uiUpdate:components","el",n)(),this._uiUpdate({method:e.method,parentEl:n,components:t.components})})})}$(e){let t=document.querySelector(e);return t?t.nodeName==="TEMPLATE"&&(t=t.content.firstElementChild,!t)?(f.log(0,"Uib:$","Template selected for CSS selector ".concat(e," but it is empty"))(),null):t:(f.log(1,"Uib:$","No element found for CSS selector ".concat(e))(),null)}$$(e){return Array.from(document.querySelectorAll(e))}addClass(e,t){Array.isArray(e)||(e=[e]),t&&t.classList.add(...e)}convertMarkdown(e){if(!e)return"";if(!this.window.markdownit)return e;let t={html:!0,linkify:!0,_highlight:!0,langPrefix:"language-",highlight(r,n){if(n&&this.window.hljs&&this.window.hljs.getLanguage(n))try{return'<pre class="highlight" data-language="'.concat(n.toUpperCase(),'">\n                                <code class="language-').concat(n,'">').concat(this.window.hljs.highlightAuto(r).value,"</code></pre>")}finally{}return'<pre class="highlight"><code>'.concat(i.utils.escapeHtml(r),"</code></pre>")}},i=this.window.markdownit(t);return i.render(e)}async include(e,t){if(!fetch)return f.log(0,"Ui:include","Current environment does not include `fetch`, skipping.")(),"Current environment does not include `fetch`, skipping.";if(!e)return f.log(0,"Ui:include","url parameter must be provided, skipping.")(),"url parameter must be provided, skipping.";if(!t||!t.id)return f.log(0,"Ui:include","uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.")(),"uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.";let i;try{i=await fetch(e)}catch(u){return f.log(0,"Ui:include","Fetch of file '".concat(e,"' failed. "),u.message)(),u.message}if(!i.ok)return f.log(0,"Ui:include","Fetch of file '".concat(e,"' failed. Status='").concat(i.statusText,"'"))(),i.statusText;let r=await i.headers.get("content-type"),n=null;r&&(r.includes("text/html")?n="html":r.includes("application/json")?n="json":r.includes("multipart/form-data")?n="form":r.includes("image/")?n="image":r.includes("video/")?n="video":r.includes("application/pdf")?n="pdf":r.includes("text/plain")&&(n="text"));let o="",c="Include successful",h;switch(n){case"html":{h=await i.text(),o=h;break}case"json":{h=await i.json(),o='<pre class="syntax-highlight">',o+=this.syntaxHighlight(h),o+="</pre>";break}case"form":{h=await i.formData(),o='<pre class="syntax-highlight">',o+=this.syntaxHighlight(h),o+="</pre>";break}case"image":{h=await i.blob(),o='<img src="'.concat(URL.createObjectURL(h),'">'),this.window.DOMPurify&&(c="Include successful. BUT DOMPurify loaded which may block its use.",f.log("warn","Ui:include:image",c)());break}case"video":{h=await i.blob(),o='<video controls autoplay><source src="'.concat(URL.createObjectURL(h),'"></video>'),this.window.DOMPurify&&(c="Include successful. BUT DOMPurify loaded which may block its use.",f.log("warn","Ui:include:video",c)());break}case"pdf":case"text":default:{h=await i.blob(),o='<iframe style="resize:both;width:inherit;height:inherit;" src="'.concat(URL.createObjectURL(h),'">'),this.window.DOMPurify&&(c="Include successful. BUT DOMPurify loaded which may block its use.",f.log("warn","Ui:include:".concat(n),c)());break}}return t.type="div",t.slot=o,t.parent||(t.parent="body"),t.attributes||(t.attributes={class:"included"}),this._uiReplace({components:[t]}),f.log("trace","Ui:include:".concat(n),c)(),c}loadScriptSrc(e){let t=this.document.createElement("script");t.src=e,t.async=!1,this.document.head.appendChild(t)}loadScriptTxt(e){let t=this.document.createElement("script");t.async=!1,t.textContent=e,this.document.head.appendChild(t)}loadStyleSrc(e){let t=this.document.createElement("link");t.href=e,t.rel="stylesheet",t.type="text/css",this.document.head.appendChild(t)}loadStyleTxt(e){let t=this.document.createElement("style");t.textContent=e,this.document.head.appendChild(t)}loadui(e){if(!fetch){f.log(0,"Ui:loadui","Current environment does not include `fetch`, skipping.")();return}if(!e){f.log(0,"Ui:loadui","url parameter must be provided, skipping.")();return}fetch(e).then(t=>{if(t.ok===!1)throw new Error("Could not load '".concat(e,"'. 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",t)()})}nodeGet(e,t){let i={id:e.id===""?void 0:e.id,name:e.name,children:e.childNodes.length,type:e.nodeName,attributes:void 0,isUserInput:!!e.validity,userInput:e.validity?{value:e.value,validity:void 0,willValidate:e.willValidate,valueAsDate:e.valueAsDate,valueAsNumber:e.valueAsNumber,type:e.type}:void 0};if(["UL","OL"].includes(e.nodeName)){let r=this.document.querySelectorAll("".concat(t," li"));r&&(i.list={entries:r.length})}if(e.nodeName==="DL"){let r=this.document.querySelectorAll("".concat(t," dt"));r&&(i.list={entries:r.length})}if(e.nodeName==="TABLE"){let r=this.document.querySelectorAll("".concat(t," > tbody > tr")),n=this.document.querySelectorAll("".concat(t," > thead > tr")),o=this.document.querySelectorAll("".concat(t," > tbody > tr:last-child > *"));(r||n||o)&&(i.table={headRows:n?n.length:0,bodyRows:r?r.length:0,columns:o?o.length:0})}if(e.nodeName!=="#text"&&e.attributes&&e.attributes.length>0){i.attributes={};for(let r of e.attributes)r.name!=="id"&&(i.attributes[r.name]=e.attributes[r.name].value),r.name==="class"&&(i.classes=Array.from(e.classList))}e.nodeName==="#text"&&(i.text=e.textContent),e.validity&&(i.userInput.validity={});for(let r in e.validity)i.userInput.validity[r]=e.validity[r];return i}async notification(e){if(typeof e=="string"&&(e={body:e}),typeof Notification>"u")return Promise.reject(new Error("Notifications not available in this browser"));let t=Notification.permission;return t==="denied"?Promise.reject(new Error("Notifications not permitted by user")):t==="granted"?this._showNotification(e):(t=await Notification.requestPermission(),t==="granted"?this._showNotification(e):Promise.reject(new Error("Notifications not permitted by user")))}removeClass(e,t){if(!e){t.removeAttribute("class");return}Array.isArray(e)||(e=[e]),t&&t.classList.remove(...e)}replaceSlot(e,t){t.slot&&e&&(this.window.DOMPurify&&(t.slot=this.window.DOMPurify.sanitize(t.slot)),e.innerHTML=t.slot)}replaceSlotMarkdown(e,t){e&&t.slotMarkdown&&(t.slotMarkdown=this.convertMarkdown(t.slotMarkdown),t.slotMarkdown=this.sanitiseHTML(t.slotMarkdown),e.innerHTML=t.slotMarkdown)}sanitiseHTML(e){return this.window.DOMPurify?this.window.DOMPurify.sanitize(e,{ADD_TAGS:this.sanitiseExtraTags,ADD_ATTR:this.sanitiseExtraAttribs}):e}showDialog(e,t,i){let r="";if(i.payload&&typeof i.payload=="string"&&(r+="<div>".concat(i.payload,"</div>")),t.content&&(r+="<div>".concat(t.content,"</div>")),r===""){f.log(1,"Ui:showDialog","Toast content is blank. 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Vt=/^(?:(?![^:@\/?#]+:[^:@\/]*@)(http|https|ws|wss):\/\/)?((?:(([^:@\/?#]*)(?::([^:@\/?#]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/,Ft=["source","protocol","authority","userInfo","user","password","host","port","relative","path","directory","file","query","anchor"];function j(s){if(s.length>2e3)throw"URI too long";let e=s,t=s.indexOf("["),i=s.indexOf("]");t!=-1&&i!=-1&&(s=s.substring(0,t)+s.substring(t,i).replace(/:/g,";")+s.substring(i,s.length));let r=Vt.exec(s||""),n={},o=14;for(;o--;)n[Ft[o]]=r[o]||"";return t!=-1&&i!=-1&&(n.source=e,n.host=n.host.substring(1,n.host.length-1).replace(/;/g,":"),n.authority=n.authority.replace("[","").replace("]","").replace(/;/g,":"),n.ipv6uri=!0),n.pathNames=jt(n,n.path),n.queryKey=Wt(n,n.query),n}function jt(s,e){let t=/\/{2,9}/g,i=e.replace(t,"/").split("/");return(e.slice(0,1)=="/"||e.length===0)&&i.splice(0,1),e.slice(-1)=="/"&&i.splice(i.length-1,1),i}function Wt(s,e){let t={};return e.replace(/(?:^|&)([^&=]*)=?([^&]*)/g,function(i,r,n){r&&(t[r]=n)}),t}var B=class s extends b{constructor(e,t={}){super(),this.binaryType=ut,this.writeBuffer=[],e&&typeof e=="object"&&(t=e,e=null),e?(e=j(e),t.hostname=e.host,t.secure=e.protocol==="https"||e.protocol==="wss",t.port=e.port,e.query&&(t.query=e.query)):t.host&&(t.hostname=j(t.host).host),T(this,t),this.secure=t.secure!=null?t.secure:typeof location<"u"&&location.protocol==="https:",t.hostname&&!t.port&&(t.port=this.secure?"443":"80"),this.hostname=t.hostname||(typeof location<"u"?location.hostname:"localhost"),this.port=t.port||(typeof location<"u"&&location.port?location.port:this.secure?"443":"80"),this.transports=t.transports||["polling","websocket","webtransport"],this.writeBuffer=[],this.prevBufferLen=0,this.opts=Object.assign({path:"/engine.io",agent:!1,withCredentials:!1,upgrade:!0,timestampParam:"t",rememberUpgrade:!1,addTrailingSlash:!0,rejectUnauthorized:!0,perMessageDeflate:{threshold:1024},transportOptions:{},closeOnBeforeunload:!1},t),this.opts.path=this.opts.path.replace(/\/$/,"")+(this.opts.addTrailingSlash?"/":""),typeof this.opts.query=="string"&&(this.opts.query=st(this.opts.query)),this.id=null,this.upgrades=null,this.pingInterval=null,this.pingTimeout=null,this.pingTimeoutTimer=null,typeof addEventListener=="function"&&(this.opts.closeOnBeforeunload&&(this.beforeunloadEventListener=()=>{this.transport&&(this.transport.removeAllListeners(),this.transport.close())},addEventListener("beforeunload",this.beforeunloadEventListener,!1)),this.hostname!=="localhost"&&(this.offlineEventListener=()=>{this.onClose("transport close",{description:"network connection lost"})},addEventListener("offline",this.offlineEventListener,!1))),this.open()}createTransport(e){let t=Object.assign({},this.opts.query);t.EIO=xe,t.transport=e,this.id&&(t.sid=this.id);let i=Object.assign({},this.opts,{query:t,socket:this,hostname:this.hostname,secure:this.secure,port:this.port},this.opts.transportOptions[e]);return new Re[e](i)}open(){let e;if(this.opts.rememberUpgrade&&s.priorWebsocketSuccess&&this.transports.indexOf("websocket")!==-1)e="websocket";else if(this.transports.length===0){this.setTimeoutFn(()=>{this.emitReserved("error","No transports available")},0);return}else e=this.transports[0];this.readyState="opening";try{e=this.createTransport(e)}catch{this.transports.shift(),this.open();return}e.open(),this.setTransport(e)}setTransport(e){this.transport&&this.transport.removeAllListeners(),this.transport=e,e.on("drain",this.onDrain.bind(this)).on("packet",this.onPacket.bind(this)).on("error",this.onError.bind(this)).on("close",t=>this.onClose("transport close",t))}probe(e){let t=this.createTransport(e),i=!1;s.priorWebsocketSuccess=!1;let r=()=>{i||(t.send([{type:"ping",data:"probe"}]),t.once("packet",x=>{if(!i)if(x.type==="pong"&&x.data==="probe"){if(this.upgrading=!0,this.emitReserved("upgrading",t),!t)return;s.priorWebsocketSuccess=t.name==="websocket",this.transport.pause(()=>{i||this.readyState!=="closed"&&(y(),this.setTransport(t),t.send([{type:"upgrade"}]),this.emitReserved("upgrade",t),t=null,this.upgrading=!1,this.flush())})}else{let k=new Error("probe error");k.transport=t.name,this.emitReserved("upgradeError",k)}}))};function n(){i||(i=!0,y(),t.close(),t=null)}let o=x=>{let k=new Error("probe error: "+x);k.transport=t.name,n(),this.emitReserved("upgradeError",k)};function c(){o("transport closed")}function h(){o("socket closed")}function u(x){t&&x.name!==t.name&&n()}let y=()=>{t.removeListener("open",r),t.removeListener("error",o),t.removeListener("close",c),this.off("close",h),this.off("upgrading",u)};t.once("open",r),t.once("error",o),t.once("close",c),this.once("close",h),this.once("upgrading",u),this.upgrades.indexOf("webtransport")!==-1&&e!=="webtransport"?this.setTimeoutFn(()=>{i||t.open()},200):t.open()}onOpen(){if(this.readyState="open",s.priorWebsocketSuccess=this.transport.name==="websocket",this.emitReserved("open"),this.flush(),this.readyState==="open"&&this.opts.upgrade){let e=0,t=this.upgrades.length;for(;e<t;e++)this.probe(this.upgrades[e])}}onPacket(e){if(this.readyState==="opening"||this.readyState==="open"||this.readyState==="closing")switch(this.emitReserved("packet",e),this.emitReserved("heartbeat"),this.resetPingTimeout(),e.type){case"open":this.onHandshake(JSON.parse(e.data));break;case"ping":this.sendPacket("pong"),this.emitReserved("ping"),this.emitReserved("pong");break;case"error":let t=new Error("server error");t.code=e.data,this.onError(t);break;case"message":this.emitReserved("data",e.data),this.emitReserved("message",e.data);break}}onHandshake(e){this.emitReserved("handshake",e),this.id=e.sid,this.transport.query.sid=e.sid,this.upgrades=this.filterUpgrades(e.upgrades),this.pingInterval=e.pingInterval,this.pingTimeout=e.pingTimeout,this.maxPayload=e.maxPayload,this.onOpen(),this.readyState!=="closed"&&this.resetPingTimeout()}resetPingTimeout(){this.clearTimeoutFn(this.pingTimeoutTimer),this.pingTimeoutTimer=this.setTimeoutFn(()=>{this.onClose("ping timeout")},this.pingInterval+this.pingTimeout),this.opts.autoUnref&&this.pingTimeoutTimer.unref()}onDrain(){this.writeBuffer.splice(0,this.prevBufferLen),this.prevBufferLen=0,this.writeBuffer.length===0?this.emitReserved("drain"):this.flush()}flush(){if(this.readyState!=="closed"&&this.transport.writable&&!this.upgrading&&this.writeBuffer.length){let e=this.getWritablePackets();this.transport.send(e),this.prevBufferLen=e.length,this.emitReserved("flush")}}getWritablePackets(){if(!(this.maxPayload&&this.transport.name==="polling"&&this.writeBuffer.length>1))return this.writeBuffer;let t=1;for(let i=0;i<this.writeBuffer.length;i++){let r=this.writeBuffer[i].data;if(r&&(t+=tt(r)),i>0&&t>this.maxPayload)return this.writeBuffer.slice(0,i);t+=2}return this.writeBuffer}write(e,t,i){return this.sendPacket("message",e,t,i),this}send(e,t,i){return this.sendPacket("message",e,t,i),this}sendPacket(e,t,i,r){if(typeof t=="function"&&(r=t,t=void 0),typeof i=="function"&&(r=i,i=null),this.readyState==="closing"||this.readyState==="closed")return;i=i||{},i.compress=i.compress!==!1;let n={type:e,data:t,options:i};this.emitReserved("packetCreate",n),this.writeBuffer.push(n),r&&this.once("flush",r),this.flush()}close(){let e=()=>{this.onClose("forced close"),this.transport.close()},t=()=>{this.off("upgrade",t),this.off("upgradeError",t),e()},i=()=>{this.once("upgrade",t),this.once("upgradeError",t)};return(this.readyState==="opening"||this.readyState==="open")&&(this.readyState="closing",this.writeBuffer.length?this.once("drain",()=>{this.upgrading?i():e()}):this.upgrading?i():e()),this}onError(e){s.priorWebsocketSuccess=!1,this.emitReserved("error",e),this.onClose("transport error",e)}onClose(e,t){(this.readyState==="opening"||this.readyState==="open"||this.readyState==="closing")&&(this.clearTimeoutFn(this.pingTimeoutTimer),this.transport.removeAllListeners("close"),this.transport.close(),this.transport.removeAllListeners(),typeof removeEventListener=="function"&&(removeEventListener("beforeunload",this.beforeunloadEventListener,!1),removeEventListener("offline",this.offlineEventListener,!1)),this.readyState="closed",this.id=null,this.emitReserved("close",e,t),this.writeBuffer=[],this.prevBufferLen=0)}filterUpgrades(e){let t=[],i=0,r=e.length;for(;i<r;i++)~this.transports.indexOf(e[i])&&t.push(e[i]);return t}};B.protocol=xe;var fs=B.protocol;function ft(s,e="",t){let i=s;t=t||typeof location<"u"&&location,s==null&&(s=t.protocol+"//"+t.host),typeof s=="string"&&(s.charAt(0)==="/"&&(s.charAt(1)==="/"?s=t.protocol+s:s=t.host+s),/^(https?|wss?):\/\//.test(s)||(typeof t<"u"?s=t.protocol+"//"+s:s="https://"+s),i=j(s)),i.port||(/^(http|ws)$/.test(i.protocol)?i.port="80":/^(http|ws)s$/.test(i.protocol)&&(i.port="443")),i.path=i.path||"/";let n=i.host.indexOf(":")!==-1?"["+i.host+"]":i.host;return i.id=i.protocol+"://"+n+":"+i.port+e,i.href=i.protocol+"://"+n+(t&&t.port===i.port?"":":"+i.port),i}var Ie={};Rt(Ie,{Decoder:()=>Le,Encoder:()=>Te,PacketType:()=>p,protocol:()=>bt});var Kt=typeof ArrayBuffer=="function",Jt=s=>typeof ArrayBuffer.isView=="function"?ArrayBuffer.isView(s):s.buffer instanceof ArrayBuffer,pt=Object.prototype.toString,zt=typeof Blob=="function"||typeof Blob<"u"&&pt.call(Blob)==="[object BlobConstructor]",Yt=typeof File=="function"||typeof File<"u"&&pt.call(File)==="[object FileConstructor]";function re(s){return Kt&&(s instanceof ArrayBuffer||Jt(s))||zt&&s instanceof Blob||Yt&&s instanceof File}function se(s,e){if(!s||typeof s!="object")return!1;if(Array.isArray(s)){for(let t=0,i=s.length;t<i;t++)if(se(s[t]))return!0;return!1}if(re(s))return!0;if(s.toJSON&&typeof s.toJSON=="function"&&arguments.length===1)return se(s.toJSON(),!0);for(let t in s)if(Object.prototype.hasOwnProperty.call(s,t)&&se(s[t]))return!0;return!1}function mt(s){let e=[],t=s.data,i=s;return i.data=Ae(t,e),i.attachments=e.length,{packet:i,buffers:e}}function Ae(s,e){if(!s)return s;if(re(s)){let t={_placeholder:!0,num:e.length};return e.push(s),t}else if(Array.isArray(s)){let t=new Array(s.length);for(let i=0;i<s.length;i++)t[i]=Ae(s[i],e);return t}else if(typeof s=="object"&&!(s instanceof Date)){let t={};for(let i in s)Object.prototype.hasOwnProperty.call(s,i)&&(t[i]=Ae(s[i],e));return t}return s}function gt(s,e){return s.data=$e(s.data,e),delete s.attachments,s}function $e(s,e){if(!s)return s;if(s&&s._placeholder===!0){if(typeof s.num=="number"&&s.num>=0&&s.num<e.length)return e[s.num];throw new Error("illegal attachments")}else if(Array.isArray(s))for(let t=0;t<s.length;t++)s[t]=$e(s[t],e);else if(typeof s=="object")for(let t in s)Object.prototype.hasOwnProperty.call(s,t)&&(s[t]=$e(s[t],e));return s}var Gt=["connect","connect_error","disconnect","disconnecting","newListener","removeListener"],bt=5,p;(function(s){s[s.CONNECT=0]="CONNECT",s[s.DISCONNECT=1]="DISCONNECT",s[s.EVENT=2]="EVENT",s[s.ACK=3]="ACK",s[s.CONNECT_ERROR=4]="CONNECT_ERROR",s[s.BINARY_EVENT=5]="BINARY_EVENT",s[s.BINARY_ACK=6]="BINARY_ACK"})(p||(p={}));var Te=class{constructor(e){this.replacer=e}encode(e){return(e.type===p.EVENT||e.type===p.ACK)&&se(e)?this.encodeAsBinary({type:e.type===p.EVENT?p.BINARY_EVENT:p.BINARY_ACK,nsp:e.nsp,data:e.data,id:e.id}):[this.encodeAsString(e)]}encodeAsString(e){let t=""+e.type;return(e.type===p.BINARY_EVENT||e.type===p.BINARY_ACK)&&(t+=e.attachments+"-"),e.nsp&&e.nsp!=="/"&&(t+=e.nsp+","),e.id!=null&&(t+=e.id),e.data!=null&&(t+=JSON.stringify(e.data,this.replacer)),t}encodeAsBinary(e){let t=mt(e),i=this.encodeAsString(t.packet),r=t.buffers;return r.unshift(i),r}};function yt(s){return Object.prototype.toString.call(s)==="[object Object]"}var Le=class s extends b{constructor(e){super(),this.reviver=e}add(e){let t;if(typeof e=="string"){if(this.reconstructor)throw new Error("got plaintext data when reconstructing a packet");t=this.decodeString(e);let i=t.type===p.BINARY_EVENT;i||t.type===p.BINARY_ACK?(t.type=i?p.EVENT:p.ACK,this.reconstructor=new Ue(t),t.attachments===0&&super.emitReserved("decoded",t)):super.emitReserved("decoded",t)}else if(re(e)||e.base64)if(this.reconstructor)t=this.reconstructor.takeBinaryData(e),t&&(this.reconstructor=null,super.emitReserved("decoded",t));else throw new Error("got binary data when not reconstructing a packet");else throw new Error("Unknown type: "+e)}decodeString(e){let t=0,i={type:Number(e.charAt(0))};if(p[i.type]===void 0)throw new Error("unknown packet type "+i.type);if(i.type===p.BINARY_EVENT||i.type===p.BINARY_ACK){let n=t+1;for(;e.charAt(++t)!=="-"&&t!=e.length;);let o=e.substring(n,t);if(o!=Number(o)||e.charAt(t)!=="-")throw new Error("Illegal attachments");i.attachments=Number(o)}if(e.charAt(t+1)==="/"){let n=t+1;for(;++t&&!(e.charAt(t)===","||t===e.length););i.nsp=e.substring(n,t)}else i.nsp="/";let r=e.charAt(t+1);if(r!==""&&Number(r)==r){let n=t+1;for(;++t;){let o=e.charAt(t);if(o==null||Number(o)!=o){--t;break}if(t===e.length)break}i.id=Number(e.substring(n,t+1))}if(e.charAt(++t)){let n=this.tryParse(e.substr(t));if(s.isPayloadValid(i.type,n))i.data=n;else throw new Error("invalid payload")}return i}tryParse(e){try{return JSON.parse(e,this.reviver)}catch{return!1}}static isPayloadValid(e,t){switch(e){case p.CONNECT:return yt(t);case p.DISCONNECT:return t===void 0;case p.CONNECT_ERROR:return typeof t=="string"||yt(t);case p.EVENT:case p.BINARY_EVENT:return Array.isArray(t)&&(typeof t[0]=="number"||typeof t[0]=="string"&&Gt.indexOf(t[0])===-1);case p.ACK:case p.BINARY_ACK:return Array.isArray(t)}}destroy(){this.reconstructor&&(this.reconstructor.finishedReconstruction(),this.reconstructor=null)}},Ue=class{constructor(e){this.packet=e,this.buffers=[],this.reconPack=e}takeBinaryData(e){if(this.buffers.push(e),this.buffers.length===this.reconPack.attachments){let t=gt(this.reconPack,this.buffers);return this.finishedReconstruction(),t}return null}finishedReconstruction(){this.reconPack=null,this.buffers=[]}};function S(s,e,t){return s.on(e,t),function(){s.off(e,t)}}var Xt=Object.freeze({connect:1,connect_error:1,disconnect:1,disconnecting:1,newListener:1,removeListener:1}),W=class extends b{constructor(e,t,i){super(),this.connected=!1,this.recovered=!1,this.receiveBuffer=[],this.sendBuffer=[],this._queue=[],this._queueSeq=0,this.ids=0,this.acks={},this.flags={},this.io=e,this.nsp=t,i&&i.auth&&(this.auth=i.auth),this._opts=Object.assign({},i),this.io._autoConnect&&this.open()}get disconnected(){return!this.connected}subEvents(){if(this.subs)return;let e=this.io;this.subs=[S(e,"open",this.onopen.bind(this)),S(e,"packet",this.onpacket.bind(this)),S(e,"error",this.onerror.bind(this)),S(e,"close",this.onclose.bind(this))]}get active(){return!!this.subs}connect(){return this.connected?this:(this.subEvents(),this.io._reconnecting||this.io.open(),this.io._readyState==="open"&&this.onopen(),this)}open(){return this.connect()}send(...e){return e.unshift("message"),this.emit.apply(this,e),this}emit(e,...t){if(Xt.hasOwnProperty(e))throw new Error('"'+e.toString()+'" is a reserved event name');if(t.unshift(e),this._opts.retries&&!this.flags.fromQueue&&!this.flags.volatile)return this._addToQueue(t),this;let i={type:p.EVENT,data:t};if(i.options={},i.options.compress=this.flags.compress!==!1,typeof t[t.length-1]=="function"){let o=this.ids++,c=t.pop();this._registerAckCallback(o,c),i.id=o}let r=this.io.engine&&this.io.engine.transport&&this.io.engine.transport.writable;return this.flags.volatile&&(!r||!this.connected)||(this.connected?(this.notifyOutgoingListeners(i),this.packet(i)):this.sendBuffer.push(i)),this.flags={},this}_registerAckCallback(e,t){var i;let r=(i=this.flags.timeout)!==null&&i!==void 0?i:this._opts.ackTimeout;if(r===void 0){this.acks[e]=t;return}let n=this.io.setTimeoutFn(()=>{delete this.acks[e];for(let o=0;o<this.sendBuffer.length;o++)this.sendBuffer[o].id===e&&this.sendBuffer.splice(o,1);t.call(this,new Error("operation has timed out"))},r);this.acks[e]=(...o)=>{this.io.clearTimeoutFn(n),t.apply(this,[null,...o])}}emitWithAck(e,...t){let i=this.flags.timeout!==void 0||this._opts.ackTimeout!==void 0;return new Promise((r,n)=>{t.push((o,c)=>i?o?n(o):r(c):r(o)),this.emit(e,...t)})}_addToQueue(e){let t;typeof e[e.length-1]=="function"&&(t=e.pop());let i={id:this._queueSeq++,tryCount:0,pending:!1,args:e,flags:Object.assign({fromQueue:!0},this.flags)};e.push((r,...n)=>i!==this._queue[0]?void 0:(r!==null?i.tryCount>this._opts.retries&&(this._queue.shift(),t&&t(r)):(this._queue.shift(),t&&t(null,...n)),i.pending=!1,this._drainQueue())),this._queue.push(i),this._drainQueue()}_drainQueue(e=!1){if(!this.connected||this._queue.length===0)return;let t=this._queue[0];t.pending&&!e||(t.pending=!0,t.tryCount++,this.flags=t.flags,this.emit.apply(this,t.args))}packet(e){e.nsp=this.nsp,this.io._packet(e)}onopen(){typeof 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Make sure that you wrap the call in a function: `doEvent: function (event) { uibuilder.eventSend(event) },`")();return}if(!e&&!event){a("warn","Uib:eventSend","Neither the domevent nor the hidden event properties are set. You probably called this function directly rather than applying to an on click event.")();return}if((!e||!e.constructor)&&(e=event),!e.constructor.name.endsWith("Event")||!e.currentTarget){a("warn","Uib:eventSend","ARGUMENT NOT A DOM EVENT - use data attributes not function arguments to pass data. Arg Type: ".concat(e.constructor.name),e)();return}e.preventDefault();let i=e.currentTarget,r={};Object.keys(i).forEach(g=>{g.startsWith("_")||(r[g]=i[g])});let n=["class","id","name"],o;try{o=Object.assign({},...Array.from(i.attributes,({name:g,value:_e})=>{if(!n.includes(g))return{[g]:_e}}))}catch{}let c,h=[];i.form&&(c={},c.valid=i.form.checkValidity(),Object.values(i.form).forEach((g,_e)=>{let V=g.id!==""?g.id:g.name!==""?g.name:"".concat(_e,"-").concat(g.type);if(V!==""&&g.type){if("checked"in g&&g.value==="on"&&(g.value=g.checked.toString()),h.push({key:V,val:g.value}),c[V]={id:g.id,name:g.name,value:g.value,valid:g.checkValidity(),type:g.type},c[V].valid===!1){let w=g.validity;c[V].validity={badInput:w.badInput===!0?w.badInput:void 0,customError:w.customError===!0?w.customError:void 0,patternMismatch:w.patternMismatch===!0?w.patternMismatch:void 0,rangeOverflow:w.rangeOverflow===!0?w.rangeOverflow:void 0,rangeUnderflow:w.rangeUnderflow===!0?w.rangeUnderflow:void 0,stepMismatch:w.stepMismatch===!0?w.stepMismatch:void 0,tooLong:w.tooLong===!0?w.tooLong:void 0,tooShort:w.tooShort===!0?w.tooShort:void 0,typeMismatch:w.typeMismatch===!0?w.typeMismatch:void 0,valueMissing:w.valueMissing===!0?w.valueMissing:void 0}}g.dataset&&(c[V].data=g.dataset)}}));let u;try{u=Array.from(i.classList)}catch{}let y={...i.dataset},x;Object.prototype.toString.call(i)==="[object Notification]"&&(y="notification-".concat(i.userAction),x={actions:i.actions,badge:i.badge,body:i.body,data:i.data,dir:i.dir,icon:i.icon,image:i.image,lang:i.lang,renotify:i.renotify,requireInteraction:i.requireInteraction,silent:i.silent,tag:i.tag,timestamp:i.timestamp,title:i.title,vibrate:i.vibrate});let k={payload:y,_ui:{type:"eventSend",id:i.id!==""?i.id:void 0,name:i.name!==""?i.name:void 0,slotText:i.textContent?i.textContent.substring(0,255):void 0,form:c,props:r,attribs:o,classes:u,notification:x,event:e.type,altKey:e.altKey,ctrlKey:e.ctrlKey,shiftKey:e.shiftKey,metaKey:e.metaKey,pointerType:e.pointerType,nodeName:i.nodeName,clientId:this.clientId,pageName:this.pageName,tabId:this.tabId}};h.length>0&&h.forEach(g=>{k.payload[g.key]=g.val}),e.type==="change"&&(k._ui.newValue=k.payload.value="checked"in i?i.checked:e.target.value),a("trace","Uib:eventSend","Sending msg to Node-RED",k)(),i.dataset&&i.dataset.length===0&&a("warn","Uib:eventSend","No payload in msg. data-* attributes should be used.")(),this._send(k,this._ioChannels.client,t)}send(e,t=""){this._send(e,this._ioChannels.client,t)}sendCtrl(e){this._send(e,this._ioChannels.control)}_getIOnamespace(){let e;if(e=this.cookies["uibuilder-namespace"],e===void 0||e===""){let t=window.location.pathname.split("/").filter(function(i){return i.trim()!==""});t.length>0&&t[t.length-1].endsWith(".html")&&t.pop(),e=t.pop(),a("trace","uibuilder.module.js:getIOnamespace","Socket.IO namespace found via url path: ".concat(e))()}else a("trace","uibuilder.module.js:getIOnamespace","Socket.IO namespace found via cookie: ".concat(e))();return this.url=e,e="/"+e,a("trace","uibuilder.module.js:getIOnamespace","Final Socket.IO namespace: ".concat(e))(),e}_checkConnect(e,t,i=1){if(navigator.onLine!==!1)return e||(e=this.retryMs),t||(t=this.retryFactor),a("trace","Uib:checkConnect","Checking connection. Connected: ".concat(this._socket.connected,". Timer: ").concat(d(this,_),". Depth: ").concat(i,". Delay: ").concat(e,". Factor: ").concat(t),this._socket)(),this._socket.connected===!0?(d(this,_)&&(window.clearTimeout(d(this,_)),A(this,_,null)),this.set("ioConnected",!0),this.set("socketError",null),!0):(this.set("ioConnected",!1),d(this,_)&&window.clearTimeout(d(this,_)),A(this,_,window.setTimeout(()=>{a("warn","Uib:checkConnect:setTimeout","Socket.IO reconnection attempt. Current delay: ".concat(e,". Depth: ").concat(i))(),this._socket.close(),this._socket.connect(),A(this,_,null),this._checkConnect(e*t,t,i++)},e)),!1)}_onConnect(){a("info","Uib:ioSetup","\u2705 SOCKET CONNECTED. Connection count: ".concat(this.connectedNum,", Is a Recovery?: ").concat(this._socket.recovered,". \nNamespace: ").concat(this.ioNamespace))(),this._dispatchCustomEvent("uibuilder:socket:connected",{numConnections:this.connectedNum,isRecovery:this._socket.recovered}),this._checkConnect()}_onDisconnect(e){a("info","Uib:ioSetup:socket-disconnect","\u26D4 Socket Disconnected. Reason: ".concat(e))(),this._dispatchCustomEvent("uibuilder:socket:disconnected",e),this._checkConnect()}_ioSetup(){return J===void 0?(a("error","Uib:ioSetup","Socket.IO client not loaded, Node-RED comms will not work")(),!1):(this._socket&&(a("trace","Uib:ioSetup","Removing listeners in preparation for redoing Socket.IO connections")(),d(this,_)&&(window.clearTimeout(d(this,_)),A(this,_,null)),this._socket.close(),this._socket.offAny(),this._socket=void 0,this.set("ioConnected",!1)),this.socketOptions.path=this.ioPath,a("trace","Uib:ioSetup","About to create IO object. Transports: [".concat(this.socketOptions.transports.join(", "),"]"))(),this._socket=J(this.ioNamespace,this.socketOptions),this._socket.on("connect",this._onConnect.bind(this)),this._socket.on(this._ioChannels.server,this._stdMsgFromServer.bind(this)),this._socket.on(this._ioChannels.control,this._ctrlMsgFromServer.bind(this)),this._socket.on("disconnect",this._onDisconnect.bind(this)),this._socket.on("connect_error",e=>{navigator.onLine!==!1&&(a("error","Uib:ioSetup:connect_error","\u274C Socket.IO Connect Error. Reason: ".concat(e.message),e)(),this.set("ioConnected",!1),this.set("socketError",e),this._dispatchCustomEvent("uibuilder:socket:disconnected",e))}),this._socket.on("error",e=>{a("error","Uib:ioSetup:error","\u274C Socket.IO Error. Reason: ".concat(e.message),e)(),this.set("ioConnected",!1),this.set("socketError",e),this._dispatchCustomEvent("uibuilder:socket:disconnected",e)}),this._checkConnect(),!0)}start(e){a("trace","Uib:start","Starting")(),d(this,oe)&&this.cancelChange("msg",d(this,oe)),this.started===!0&&a("info","Uib:start","Start function already called. 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e=this.transports[0];this.readyState="opening";try{e=this.createTransport(e)}catch{this.transports.shift(),this.open();return}e.open(),this.setTransport(e)}setTransport(e){this.transport&&this.transport.removeAllListeners(),this.transport=e,e.on("drain",this.onDrain.bind(this)).on("packet",this.onPacket.bind(this)).on("error",this.onError.bind(this)).on("close",t=>this.onClose("transport close",t))}probe(e){let t=this.createTransport(e),i=!1;s.priorWebsocketSuccess=!1;let r=()=>{i||(t.send([{type:"ping",data:"probe"}]),t.once("packet",x=>{if(!i)if(x.type==="pong"&&x.data==="probe"){if(this.upgrading=!0,this.emitReserved("upgrading",t),!t)return;s.priorWebsocketSuccess=t.name==="websocket",this.transport.pause(()=>{i||this.readyState!=="closed"&&(g(),this.setTransport(t),t.send([{type:"upgrade"}]),this.emitReserved("upgrade",t),t=null,this.upgrading=!1,this.flush())})}else{let _=new Error("probe error");_.transport=t.name,this.emitReserved("upgradeError",_)}}))};function n(){i||(i=!0,g(),t.close(),t=null)}let o=x=>{let _=new Error("probe error: "+x);_.transport=t.name,n(),this.emitReserved("upgradeError",_)};function c(){o("transport closed")}function h(){o("socket closed")}function d(x){t&&x.name!==t.name&&n()}let g=()=>{t.removeListener("open",r),t.removeListener("error",o),t.removeListener("close",c),this.off("close",h),this.off("upgrading",d)};t.once("open",r),t.once("error",o),t.once("close",c),this.once("close",h),this.once("upgrading",d),this.upgrades.indexOf("webtransport")!==-1&&e!=="webtransport"?this.setTimeoutFn(()=>{i||t.open()},200):t.open()}onOpen(){if(this.readyState="open",s.priorWebsocketSuccess=this.transport.name==="websocket",this.emitReserved("open"),this.flush(),this.readyState==="open"&&this.opts.upgrade){let e=0,t=this.upgrades.length;for(;e<t;e++)this.probe(this.upgrades[e])}}onPacket(e){if(this.readyState==="opening"||this.readyState==="open"||this.readyState==="closing")switch(this.emitReserved("packet",e),this.emitReserved("heartbeat"),this.resetPingTimeout(),e.type){case"open":this.onHandshake(JSON.parse(e.data));break;case"ping":this.sendPacket("pong"),this.emitReserved("ping"),this.emitReserved("pong");break;case"error":let t=new Error("server error");t.code=e.data,this.onError(t);break;case"message":this.emitReserved("data",e.data),this.emitReserved("message",e.data);break}}onHandshake(e){this.emitReserved("handshake",e),this.id=e.sid,this.transport.query.sid=e.sid,this.upgrades=this.filterUpgrades(e.upgrades),this.pingInterval=e.pingInterval,this.pingTimeout=e.pingTimeout,this.maxPayload=e.maxPayload,this.onOpen(),this.readyState!=="closed"&&this.resetPingTimeout()}resetPingTimeout(){this.clearTimeoutFn(this.pingTimeoutTimer),this.pingTimeoutTimer=this.setTimeoutFn(()=>{this.onClose("ping timeout")},this.pingInterval+this.pingTimeout),this.opts.autoUnref&&this.pingTimeoutTimer.unref()}onDrain(){this.writeBuffer.splice(0,this.prevBufferLen),this.prevBufferLen=0,this.writeBuffer.length===0?this.emitReserved("drain"):this.flush()}flush(){if(this.readyState!=="closed"&&this.transport.writable&&!this.upgrading&&this.writeBuffer.length){let e=this.getWritablePackets();this.transport.send(e),this.prevBufferLen=e.length,this.emitReserved("flush")}}getWritablePackets(){if(!(this.maxPayload&&this.transport.name==="polling"&&this.writeBuffer.length>1))return this.writeBuffer;let t=1;for(let i=0;i<this.writeBuffer.length;i++){let r=this.writeBuffer[i].data;if(r&&(t+=tt(r)),i>0&&t>this.maxPayload)return this.writeBuffer.slice(0,i);t+=2}return this.writeBuffer}write(e,t,i){return this.sendPacket("message",e,t,i),this}send(e,t,i){return this.sendPacket("message",e,t,i),this}sendPacket(e,t,i,r){if(typeof t=="function"&&(r=t,t=void 0),typeof i=="function"&&(r=i,i=null),this.readyState==="closing"||this.readyState==="closed")return;i=i||{},i.compress=i.compress!==!1;let n={type:e,data:t,options:i};this.emitReserved("packetCreate",n),this.writeBuffer.push(n),r&&this.once("flush",r),this.flush()}close(){let e=()=>{this.onClose("forced close"),this.transport.close()},t=()=>{this.off("upgrade",t),this.off("upgradeError",t),e()},i=()=>{this.once("upgrade",t),this.once("upgradeError",t)};return(this.readyState==="opening"||this.readyState==="open")&&(this.readyState="closing",this.writeBuffer.length?this.once("drain",()=>{this.upgrading?i():e()}):this.upgrading?i():e()),this}onError(e){s.priorWebsocketSuccess=!1,this.emitReserved("error",e),this.onClose("transport error",e)}onClose(e,t){(this.readyState==="opening"||this.readyState==="open"||this.readyState==="closing")&&(this.clearTimeoutFn(this.pingTimeoutTimer),this.transport.removeAllListeners("close"),this.transport.close(),this.transport.removeAllListeners(),typeof removeEventListener=="function"&&(removeEventListener("beforeunload",this.beforeunloadEventListener,!1),removeEventListener("offline",this.offlineEventListener,!1)),this.readyState="closed",this.id=null,this.emitReserved("close",e,t),this.writeBuffer=[],this.prevBufferLen=0)}filterUpgrades(e){let t=[],i=0,r=e.length;for(;i<r;i++)~this.transports.indexOf(e[i])&&t.push(e[i]);return t}};B.protocol=xe;var us=B.protocol;function ft(s,e="",t){let i=s;t=t||typeof location<"u"&&location,s==null&&(s=t.protocol+"//"+t.host),typeof s=="string"&&(s.charAt(0)==="/"&&(s.charAt(1)==="/"?s=t.protocol+s:s=t.host+s),/^(https?|wss?):\/\//.test(s)||(typeof t<"u"?s=t.protocol+"//"+s:s="https://"+s),i=j(s)),i.port||(/^(http|ws)$/.test(i.protocol)?i.port="80":/^(http|ws)s$/.test(i.protocol)&&(i.port="443")),i.path=i.path||"/";let n=i.host.indexOf(":")!==-1?"["+i.host+"]":i.host;return i.id=i.protocol+"://"+n+":"+i.port+e,i.href=i.protocol+"://"+n+(t&&t.port===i.port?"":":"+i.port),i}var Ie={};Rt(Ie,{Decoder:()=>Le,Encoder:()=>Te,PacketType:()=>p,protocol:()=>yt});var Kt=typeof ArrayBuffer=="function",Jt=s=>typeof ArrayBuffer.isView=="function"?ArrayBuffer.isView(s):s.buffer instanceof ArrayBuffer,pt=Object.prototype.toString,zt=typeof Blob=="function"||typeof Blob<"u"&&pt.call(Blob)==="[object BlobConstructor]",Gt=typeof File=="function"||typeof File<"u"&&pt.call(File)==="[object FileConstructor]";function se(s){return Kt&&(s instanceof ArrayBuffer||Jt(s))||zt&&s instanceof Blob||Gt&&s instanceof File}function ie(s,e){if(!s||typeof s!="object")return!1;if(Array.isArray(s)){for(let t=0,i=s.length;t<i;t++)if(ie(s[t]))return!0;return!1}if(se(s))return!0;if(s.toJSON&&typeof s.toJSON=="function"&&arguments.length===1)return ie(s.toJSON(),!0);for(let t in s)if(Object.prototype.hasOwnProperty.call(s,t)&&ie(s[t]))return!0;return!1}function mt(s){let e=[],t=s.data,i=s;return i.data=Ae(t,e),i.attachments=e.length,{packet:i,buffers:e}}function Ae(s,e){if(!s)return s;if(se(s)){let t={_placeholder:!0,num:e.length};return e.push(s),t}else if(Array.isArray(s)){let t=new Array(s.length);for(let i=0;i<s.length;i++)t[i]=Ae(s[i],e);return t}else if(typeof s=="object"&&!(s instanceof Date)){let t={};for(let i in s)Object.prototype.hasOwnProperty.call(s,i)&&(t[i]=Ae(s[i],e));return t}return s}function bt(s,e){return s.data=$e(s.data,e),delete s.attachments,s}function $e(s,e){if(!s)return s;if(s&&s._placeholder===!0){if(typeof s.num=="number"&&s.num>=0&&s.num<e.length)return e[s.num];throw new Error("illegal attachments")}else if(Array.isArray(s))for(let t=0;t<s.length;t++)s[t]=$e(s[t],e);else if(typeof s=="object")for(let t in s)Object.prototype.hasOwnProperty.call(s,t)&&(s[t]=$e(s[t],e));return s}var Yt=["connect","connect_error","disconnect","disconnecting","newListener","removeListener"],yt=5,p;(function(s){s[s.CONNECT=0]="CONNECT",s[s.DISCONNECT=1]="DISCONNECT",s[s.EVENT=2]="EVENT",s[s.ACK=3]="ACK",s[s.CONNECT_ERROR=4]="CONNECT_ERROR",s[s.BINARY_EVENT=5]="BINARY_EVENT",s[s.BINARY_ACK=6]="BINARY_ACK"})(p||(p={}));var Te=class{constructor(e){this.replacer=e}encode(e){return(e.type===p.EVENT||e.type===p.ACK)&&ie(e)?this.encodeAsBinary({type:e.type===p.EVENT?p.BINARY_EVENT:p.BINARY_ACK,nsp:e.nsp,data:e.data,id:e.id}):[this.encodeAsString(e)]}encodeAsString(e){let t=""+e.type;return(e.type===p.BINARY_EVENT||e.type===p.BINARY_ACK)&&(t+=e.attachments+"-"),e.nsp&&e.nsp!=="/"&&(t+=e.nsp+","),e.id!=null&&(t+=e.id),e.data!=null&&(t+=JSON.stringify(e.data,this.replacer)),t}encodeAsBinary(e){let t=mt(e),i=this.encodeAsString(t.packet),r=t.buffers;return r.unshift(i),r}};function gt(s){return Object.prototype.toString.call(s)==="[object Object]"}var Le=class s extends y{constructor(e){super(),this.reviver=e}add(e){let t;if(typeof e=="string"){if(this.reconstructor)throw new Error("got plaintext data when reconstructing a packet");t=this.decodeString(e);let i=t.type===p.BINARY_EVENT;i||t.type===p.BINARY_ACK?(t.type=i?p.EVENT:p.ACK,this.reconstructor=new Ue(t),t.attachments===0&&super.emitReserved("decoded",t)):super.emitReserved("decoded",t)}else if(se(e)||e.base64)if(this.reconstructor)t=this.reconstructor.takeBinaryData(e),t&&(this.reconstructor=null,super.emitReserved("decoded",t));else throw new Error("got binary data when not reconstructing a packet");else throw new Error("Unknown type: "+e)}decodeString(e){let t=0,i={type:Number(e.charAt(0))};if(p[i.type]===void 0)throw new Error("unknown packet type "+i.type);if(i.type===p.BINARY_EVENT||i.type===p.BINARY_ACK){let n=t+1;for(;e.charAt(++t)!=="-"&&t!=e.length;);let o=e.substring(n,t);if(o!=Number(o)||e.charAt(t)!=="-")throw new Error("Illegal attachments");i.attachments=Number(o)}if(e.charAt(t+1)==="/"){let n=t+1;for(;++t&&!(e.charAt(t)===","||t===e.length););i.nsp=e.substring(n,t)}else i.nsp="/";let r=e.charAt(t+1);if(r!==""&&Number(r)==r){let n=t+1;for(;++t;){let o=e.charAt(t);if(o==null||Number(o)!=o){--t;break}if(t===e.length)break}i.id=Number(e.substring(n,t+1))}if(e.charAt(++t)){let n=this.tryParse(e.substr(t));if(s.isPayloadValid(i.type,n))i.data=n;else throw new Error("invalid payload")}return i}tryParse(e){try{return JSON.parse(e,this.reviver)}catch{return!1}}static isPayloadValid(e,t){switch(e){case p.CONNECT:return gt(t);case p.DISCONNECT:return t===void 0;case p.CONNECT_ERROR:return typeof t=="string"||gt(t);case p.EVENT:case p.BINARY_EVENT:return Array.isArray(t)&&(typeof t[0]=="number"||typeof t[0]=="string"&&Yt.indexOf(t[0])===-1);case p.ACK:case p.BINARY_ACK:return Array.isArray(t)}}destroy(){this.reconstructor&&(this.reconstructor.finishedReconstruction(),this.reconstructor=null)}},Ue=class{constructor(e){this.packet=e,this.buffers=[],this.reconPack=e}takeBinaryData(e){if(this.buffers.push(e),this.buffers.length===this.reconPack.attachments){let t=bt(this.reconPack,this.buffers);return this.finishedReconstruction(),t}return null}finishedReconstruction(){this.reconPack=null,this.buffers=[]}};function S(s,e,t){return s.on(e,t),function(){s.off(e,t)}}var Xt=Object.freeze({connect:1,connect_error:1,disconnect:1,disconnecting:1,newListener:1,removeListener:1}),W=class extends y{constructor(e,t,i){super(),this.connected=!1,this.recovered=!1,this.receiveBuffer=[],this.sendBuffer=[],this._queue=[],this._queueSeq=0,this.ids=0,this.acks={},this.flags={},this.io=e,this.nsp=t,i&&i.auth&&(this.auth=i.auth),this._opts=Object.assign({},i),this.io._autoConnect&&this.open()}get disconnected(){return!this.connected}subEvents(){if(this.subs)return;let e=this.io;this.subs=[S(e,"open",this.onopen.bind(this)),S(e,"packet",this.onpacket.bind(this)),S(e,"error",this.onerror.bind(this)),S(e,"close",this.onclose.bind(this))]}get active(){return!!this.subs}connect(){return this.connected?this:(this.subEvents(),this.io._reconnecting||this.io.open(),this.io._readyState==="open"&&this.onopen(),this)}open(){return this.connect()}send(...e){return e.unshift("message"),this.emit.apply(this,e),this}emit(e,...t){if(Xt.hasOwnProperty(e))throw new Error('"'+e.toString()+'" is a reserved event name');if(t.unshift(e),this._opts.retries&&!this.flags.fromQueue&&!this.flags.volatile)return this._addToQueue(t),this;let i={type:p.EVENT,data:t};if(i.options={},i.options.compress=this.flags.compress!==!1,typeof t[t.length-1]=="function"){let o=this.ids++,c=t.pop();this._registerAckCallback(o,c),i.id=o}let r=this.io.engine&&this.io.engine.transport&&this.io.engine.transport.writable;return this.flags.volatile&&(!r||!this.connected)||(this.connected?(this.notifyOutgoingListeners(i),this.packet(i)):this.sendBuffer.push(i)),this.flags={},this}_registerAckCallback(e,t){var i;let r=(i=this.flags.timeout)!==null&&i!==void 0?i:this._opts.ackTimeout;if(r===void 0){this.acks[e]=t;return}let n=this.io.setTimeoutFn(()=>{delete this.acks[e];for(let o=0;o<this.sendBuffer.length;o++)this.sendBuffer[o].id===e&&this.sendBuffer.splice(o,1);t.call(this,new Error("operation has timed out"))},r);this.acks[e]=(...o)=>{this.io.clearTimeoutFn(n),t.apply(this,[null,...o])}}emitWithAck(e,...t){let i=this.flags.timeout!==void 0||this._opts.ackTimeout!==void 0;return new Promise((r,n)=>{t.push((o,c)=>i?o?n(o):r(c):r(o)),this.emit(e,...t)})}_addToQueue(e){let t;typeof e[e.length-1]=="function"&&(t=e.pop());let i={id:this._queueSeq++,tryCount:0,pending:!1,args:e,flags:Object.assign({fromQueue:!0},this.flags)};e.push((r,...n)=>i!==this._queue[0]?void 0:(r!==null?i.tryCount>this._opts.retries&&(this._queue.shift(),t&&t(r)):(this._queue.shift(),t&&t(null,...n)),i.pending=!1,this._drainQueue())),this._queue.push(i),this._drainQueue()}_drainQueue(e=!1){if(!this.connected||this._queue.length===0)return;let t=this._queue[0];t.pending&&!e||(t.pending=!0,t.tryCount++,this.flags=t.flags,this.emit.apply(this,t.args))}packet(e){e.nsp=this.nsp,this.io._packet(e)}onopen(){typeof this.auth=="function"?this.auth(e=>{this._sendConnectPacket(e)}):this._sendConnectPacket(this.auth)}_sendConnectPacket(e){this.packet({type:p.CONNECT,data:this._pid?Object.assign({pid:this._pid,offset:this._lastOffset},e):e})}onerror(e){this.connected||this.emitReserved("connect_error",e)}onclose(e,t){this.connected=!1,delete this.id,this.emitReserved("disconnect",e,t)}onpacket(e){if(e.nsp===this.nsp)switch(e.type){case p.CONNECT:e.data&&e.data.sid?this.onconnect(e.data.sid,e.data.pid):this.emitReserved("connect_error",new Error("It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)"));break;case p.EVENT:case p.BINARY_EVENT:this.onevent(e);break;case p.ACK:case p.BINARY_ACK:this.onack(e);break;case p.DISCONNECT:this.ondisconnect();break;case p.CONNECT_ERROR:this.destroy();let i=new Error(e.data.message);i.data=e.data.data,this.emitReserved("connect_error",i);break}}onevent(e){let t=e.data||[];e.id!=null&&t.push(this.ack(e.id)),this.connected?this.emitEvent(t):this.receiveBuffer.push(Object.freeze(t))}emitEvent(e){if(this._anyListeners&&this._anyListeners.length){let t=this._anyListeners.slice();for(let i of t)i.apply(this,e)}super.emit.apply(this,e),this._pid&&e.length&&typeof e[e.length-1]=="string"&&(this._lastOffset=e[e.length-1])}ack(e){let t=this,i=!1;return function(...r){i||(i=!0,t.packet({type:p.ACK,id:e,data:r}))}}onack(e){let t=this.acks[e.id];typeof t=="function"&&(t.apply(this,e.data),delete this.acks[e.id])}onconnect(e,t){this.id=e,this.recovered=t&&this._pid===t,this._pid=t,this.connected=!0,this.emitBuffered(),this.emitReserved("connect"),this._drainQueue(!0)}emitBuffered(){this.receiveBuffer.forEach(e=>this.emitEvent(e)),this.receiveBuffer=[],this.sendBuffer.forEach(e=>{this.notifyOutgoingListeners(e),this.packet(e)}),this.sendBuffer=[]}ondisconnect(){this.destroy(),this.onclose("io server disconnect")}destroy(){this.subs&&(this.subs.forEach(e=>e()),this.subs=void 0),this.io._destroy(this)}disconnect(){return this.connected&&this.packet({type:p.DISCONNECT}),this.destroy(),this.connected&&this.onclose("io client disconnect"),this}close(){return this.disconnect()}compress(e){return this.flags.compress=e,this}get volatile(){return this.flags.volatile=!0,this}timeout(e){return this.flags.timeout=e,this}onAny(e){return this._anyListeners=this._anyListeners||[],this._anyListeners.push(e),this}prependAny(e){return this._anyListeners=this._anyListeners||[],this._anyListeners.unshift(e),this}offAny(e){if(!this._anyListeners)return this;if(e){let t=this._anyListeners;for(let i=0;i<t.length;i++)if(e===t[i])return t.splice(i,1),this}else this._anyListeners=[];return this}listenersAny(){return this._anyListeners||[]}onAnyOutgoing(e){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.push(e),this}prependAnyOutgoing(e){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.unshift(e),this}offAnyOutgoing(e){if(!this._anyOutgoingListeners)return this;if(e){let t=this._anyOutgoingListeners;for(let i=0;i<t.length;i++)if(e===t[i])return t.splice(i,1),this}else this._anyOutgoingListeners=[];return this}listenersAnyOutgoing(){return this._anyOutgoingListeners||[]}notifyOutgoingListeners(e){if(this._anyOutgoingListeners&&this._anyOutgoingListeners.length){let t=this._anyOutgoingListeners.slice();for(let i of t)i.apply(this,e.data)}}};function P(s){s=s||{},this.ms=s.min||100,this.max=s.max||1e4,this.factor=s.factor||2,this.jitter=s.jitter>0&&s.jitter<=1?s.jitter:0,this.attempts=0}P.prototype.duration=function(){var s=this.ms*Math.pow(this.factor,this.attempts++);if(this.jitter){var e=Math.random(),t=Math.floor(e*this.jitter*s);s=Math.floor(e*10)&1?s+t:s-t}return Math.min(s,this.max)|0};P.prototype.reset=function(){this.attempts=0};P.prototype.setMin=function(s){this.ms=s};P.prototype.setMax=function(s){this.max=s};P.prototype.setJitter=function(s){this.jitter=s};var K=class extends y{constructor(e,t){var i;super(),this.nsps={},this.subs=[],e&&typeof e=="object"&&(t=e,e=void 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",n)(),!1}}getStore(e){try{return JSON.parse(localStorage.getItem(this.storePrefix+e))}catch{}try{return localStorage.getItem(this.storePrefix+e)}catch{return}}removeStore(e){try{localStorage.removeItem(this.storePrefix+e)}catch{}}getManagedVarList(){return u(this,ae)}getWatchedVars(){return Object.keys(u(this,O))}_dispatchCustomEvent(e,t){let i=new CustomEvent(e,{detail:t});document.dispatchEvent(i)}onChange(e,t){u(this,O)[e]?u(this,O)[e]._nextRef++:u(this,O)[e]={_nextRef:1};let i=u(this,O)[e]._nextRef,r=u(this,O)[e][i]=function(o){if(e===o.detail.prop){let c=o.detail.value;t.call(c,c)}};return document.addEventListener("uibuilder:propertyChanged",r),i}cancelChange(e,t){document.removeEventListener("uibuilder:propertyChanged",u(this,O)[e][t]),delete u(this,O)[e][t]}onTopic(e,t){u(this,$)[e]?u(this,$)[e]._nextRef++:u(this,$)[e]={_nextRef:1};let i=u(this,$)[e]._nextRef,r=u(this,$)[e][i]=function(o){let c=o.detail;c.topic===e&&t.call(c,c)};return document.addEventListener("uibuilder:stdMsgReceived",r),i}cancelTopic(e,t){document.removeEventListener("uibuilder:stdMsgReceived",u(this,$)[e][t]),delete u(this,$)[e][t]}_checkTimestamp(e){if(Object.prototype.hasOwnProperty.call(e,"serverTimestamp")){let t=new Date(e.serverTimestamp),i=Math.round((new Date-t)/36e5);i!==this.serverTimeOffset&&(a("trace","Uib:checkTimestamp:".concat(this._ioChannels.server," (server)"),"Offset changed to: ".concat(i," from: ").concat(this.serverTimeOffset))(),this.set("serverTimeOffset",i))}}setOriginator(e=""){this.set("originator",e)}setPing(e=0){let t=new XMLHttpRequest;t.addEventListener("load",()=>{let i=t.getAllResponseHeaders().split("\r\n"),r=Number(new Date)-Number(t.responseURL.split("=")[1]);this.set("ping",{success:t.status===201||t.status===204,status:t.status,headers:i,url:t.responseURL,elapsedTime:r})}),u(this,H)&&(clearInterval(u(this,H)),A(this,H,void 0)),t.open("GET","".concat(this.httpNodeRoot,"/uibuilder/ping?t=").concat(Number(new Date))),t.send(),e>0&&A(this,H,setInterval(()=>{t.open("GET","".concat(this.httpNodeRoot,"/uibuilder/ping?t=").concat(Number(new Date))),t.send()},e))}log(){a(...arguments)()}syntaxHighlight(e){return kt(e)}copyToClipboard(e){let t="";try{t=JSON.stringify(this.get(e))}catch(i){a("error","copyToClipboard",'Could not copy "'.concat(e,'" to clipboard.'),i.message)()}navigator.clipboard.writeText(t)}elementIsVisible(){return a("error","uib:elementIsVisible","elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex")(),this.send({payload:"elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex"}),!1}elementExists(e,t=!0){let i=document.querySelector(e),r=!1;return i!==null&&(r=!0),t===!0&&this.send({payload:r,info:'Element "'.concat(e,'" ').concat(r?"exists":"does not exist")}),r}keepHashFromUrl(e){return e?"#"+e.replace(/^.*#(.*)/,"$1").replace(/\?.*$/,""):""}_watchHashChanges(){this.set("urlHash",location.hash),window.addEventListener("hashchange",e=>{this.set("urlHash",location.hash),u(this,F)===!0&&this.send({topic:"hashChange",payload:location.hash,newHash:this.keepHashFromUrl(e.newURL),oldHash:this.keepHashFromUrl(e.oldURL)})})}truthy(e,t){let i;return["on","On","ON","true","True","TRUE","1",!0,1].includes(e)?i=!0:["off","Off","OFF","false","False","FALSE","0",!1,0].includes(e)?i=!1:i=t,i}watchUrlHash(e){return A(this,F,this.truthy(e,u(this,F)!==!0)),u(this,F)}navigate(e){return e&&(window.location.href=e),window.location}formatNumber(e,t,i,r){if(isNaN(e))return a("error","formatNumber",'Value must be a number. 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i?(i.scrollIntoView(t),!0):!1}showStatus(e,t="body"){if(e===void 0&&(e=!u(this,G)),A(this,G,e),e===!1)return m._uiRemove({components:["#uib_status"]}),e;let i={components:[{type:"div",id:"uib_status",parent:t,attributes:{title:"Current status of the uibuilder client",class:"text-smaller"},components:[{type:"table",components:[{type:"tbody",components:[]}]}]}]},r=i.components[0].components[0].components[0].components;return Object.values(u(this,ce)).forEach(n=>{r.push({type:"tr",attributes:{title:n.description},components:[{type:"th",slot:n.label},{type:"td",attributes:{"data-varType":n.var},slot:n.var==="version"?E._meta.version:JSON.stringify(this[n.var])}]})}),m._uiReplace(i),e}uiWatch(e,t="toggle",i=!0,r=!0){let n=document.querySelector(e);if(!n)return a("warn","uibuilder.module.js:uiWatch","CSS Selector '".concat(e,"' not found."))(),!1;(t==="toggle"||t===void 0||t===null)&&(u(this,D)[e]?t=!1:t=!0);let o=this;return t===!0?(u(this,D)[e]=new MutationObserver(function(c){let h=[];c.forEach(d=>{let g={type:d.type,oldValue:d.oldValue!==null?d.oldValue:void 0};d.addedNodes.length>0&&(g.addedNodes=[],d.addedNodes.forEach((x,_)=>{g.addedNodes.push(m.nodeGet(d.addedNodes[_]))})),d.removedNodes.length>0&&(g.removedNodes=[],d.removedNodes.forEach((x,_)=>{g.removedNodes.push(m.nodeGet(d.removedNodes[_]))})),d.type==="attributes"&&(g.attributeName=d.attributeName,g.newValue=d.target.attributes[d.attributeName].value),h.push(g)}),o._dispatchCustomEvent("uibuilder:domChange",h),i===!0&&o.send({_ui:{cssSelector:e,uiChanges:h},topic:o.topic||"DOM Changes for '".concat(e,"'")}),r===!0&&a("info","uibuilder.module.js:uiWatch","DOM Changes for '".concat(e,"'"),{uiChanges:h},{mutationList:c})()}),u(this,D)[e].observe(n,{attributes:!0,childList:!0,subtree:!0,characterData:!0}),a("trace","uibuilder.module.js:uiWatch","Started Watching DOM changes for '".concat(e,"'"))()):(u(this,D)[e].disconnect(),delete u(this,D)[e],a("trace","uibuilder.module.js:uiWatch","Stopped Watching 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changes")())}_ctrlMsgFromServer(e){if(e===null)e={};else if(typeof e!="object"){let t={};t["uibuilderCtrl:"+this._ioChannels.control]=e,e=t}switch(this._checkTimestamp(e),this.set("ctrlMsg",e),this.set("msgsCtrlReceived",++this.msgsCtrlReceived),a("trace","Uib:ioSetup:_ctrlMsgFromServer","Channel '".concat(this._ioChannels.control,"'. 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Version: ".concat(e.version,"\nServer time: ").concat(e.serverTimestamp,", Sever time offset: ").concat(this.serverTimeOffset," hours"))(),E._meta.version.startsWith(e.version.split("-")[0])||a("warn","Uib:ioSetup:".concat(this._ioChannels.control),"Server version (".concat(e.version,") not the same as the client version (").concat(E._meta.version,")"))(),this.autoSendReady===!0&&a("trace","Uib:ioSetup:".concat(this._ioChannels.control,"/client connect"),"Auto-sending ready-for-content/replay msg to server");break}default:a("trace","uibuilderfe:ioSetup:".concat(this._ioChannels.control),"Received ".concat(e.uibuilderCtrl," from server"))}}_forThis(e){let t=!0;return e.pageName&&e.pageName!==this.pageName&&(a("trace","Uib:_msgRcvdEvents:_uib","Not for this page")(),t=!1),e.clientId&&e.clientId!==this.clientId&&(a("trace","Uib:_msgRcvdEvents:_uib","Not for this clientId")(),t=!1),e.tabId&&e.tabId!==this.tabId&&(a("trace","Uib:_msgRcvdEvents:_uib","Not for this tabId")(),t=!1),t}_msgRcvdEvents(e){if(this._dispatchCustomEvent("uibuilder:stdMsgReceived",e),e.topic&&this._dispatchCustomEvent("uibuilder:msg:topic:".concat(e.topic),e),e._uib){if(!this._forThis(e._uib))return;if(e._uib.reload===!0){a("trace","Uib:_msgRcvdEvents:_uib:reload","reloading")(),location.reload();return}if(e._uib.command){this._uibCommand(e);return}e._uib.componentRef==="globalNotification"&&m.showDialog("notify",e._uib.options,e),e._uib.componentRef==="globalAlert"&&m.showDialog("alert",e._uib.options,e)}if(e._ui){if(!this._forThis(e._ui))return;a("trace","Uib:_msgRcvdEvents:_ui","Calling _uiManager")(),this._dispatchCustomEvent("uibuilder:msg:_ui",e),m._uiManager(e)}}_send(e,t,i=""){t==null&&(t=this._ioChannels.client),t===this._ioChannels.client?e=De(e,"payload"):t===this._ioChannels.control&&(e=De(e,"uibuilderCtrl"),Object.prototype.hasOwnProperty.call(e,"uibuilderCtrl")||(e.uibuilderCtrl="manual send"),e.from="client"),e._socketId=this._socket.id,i===""&&this.originator!==""&&(i=this.originator),i!==""&&Object.assign(e,{_uib:{originator:i}}),Object.prototype.hasOwnProperty.call(e,"topic")||(this.topic!==void 0&&this.topic!==""?e.topic=this.topic:Object.prototype.hasOwnProperty.call(this,"msg")&&Object.prototype.hasOwnProperty.call(this.msg,"topic")&&(e.topic=this.msg.topic)),e._ui&&(e._ui.from="client");let r;t===this._ioChannels.client?(this.set("sentMsg",e),r=this.set("msgsSent",++this.msgsSent)):t===this._ioChannels.control&&(this.set("sentCtrlMsg",e),r=this.set("msgsSentCtrl",++this.msgsSentCtrl)),a("trace","Uib:_send"," Channel '".concat(t,"'. 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Make sure that you wrap the call in a function: `doEvent: function (event) { uibuilder.eventSend(event) },`")();return}if(!e&&!event){a("warn","Uib:eventSend","Neither the domevent nor the hidden event properties are set. You probably called this function directly rather than applying to an on click event.")();return}if((!e||!e.constructor)&&(e=event),!e.constructor.name.endsWith("Event")||!e.currentTarget){a("warn","Uib:eventSend","ARGUMENT NOT A DOM EVENT - use data attributes not function arguments to pass data. Arg Type: ".concat(e.constructor.name),e)();return}e.preventDefault();let i=e.currentTarget,r={};Object.keys(i).forEach(b=>{b.startsWith("_")||(r[b]=i[b])});let n=["class","id","name"],o;try{o=Object.assign({},...Array.from(i.attributes,({name:b,value:_e})=>{if(!n.includes(b))return{[b]:_e}}))}catch{}let c,h=[];i.form&&(c={},c.valid=i.form.checkValidity(),Object.values(i.form).forEach((b,_e)=>{let V=b.id!==""?b.id:b.name!==""?b.name:"".concat(_e,"-").concat(b.type);if(V!==""&&b.type){if("checked"in b&&b.value==="on"&&(b.value=b.checked.toString()),h.push({key:V,val:b.value}),c[V]={id:b.id,name:b.name,value:b.value,valid:b.checkValidity(),type:b.type},c[V].valid===!1){let w=b.validity;c[V].validity={badInput:w.badInput===!0?w.badInput:void 0,customError:w.customError===!0?w.customError:void 0,patternMismatch:w.patternMismatch===!0?w.patternMismatch:void 0,rangeOverflow:w.rangeOverflow===!0?w.rangeOverflow:void 0,rangeUnderflow:w.rangeUnderflow===!0?w.rangeUnderflow:void 0,stepMismatch:w.stepMismatch===!0?w.stepMismatch:void 0,tooLong:w.tooLong===!0?w.tooLong:void 0,tooShort:w.tooShort===!0?w.tooShort:void 0,typeMismatch:w.typeMismatch===!0?w.typeMismatch:void 0,valueMissing:w.valueMissing===!0?w.valueMissing:void 0}}b.dataset&&(c[V].data=b.dataset)}}));let d;try{d=Array.from(i.classList)}catch{}let g={...i.dataset},x;Object.prototype.toString.call(i)==="[object Notification]"&&(g="notification-".concat(i.userAction),x={actions:i.actions,badge:i.badge,body:i.body,data:i.data,dir:i.dir,icon:i.icon,image:i.image,lang:i.lang,renotify:i.renotify,requireInteraction:i.requireInteraction,silent:i.silent,tag:i.tag,timestamp:i.timestamp,title:i.title,vibrate:i.vibrate});let _={payload:g,_ui:{type:"eventSend",id:i.id!==""?i.id:void 0,name:i.name!==""?i.name:void 0,slotText:i.textContent?i.textContent.substring(0,255):void 0,form:c,props:r,attribs:o,classes:d,notification:x,event:e.type,altKey:e.altKey,ctrlKey:e.ctrlKey,shiftKey:e.shiftKey,metaKey:e.metaKey,pointerType:e.pointerType,nodeName:i.nodeName,clientId:this.clientId,pageName:this.pageName,tabId:this.tabId}};h.length>0&&h.forEach(b=>{_.payload[b.key]=b.val}),e.type==="change"&&(_._ui.newValue=_.payload.value="checked"in i?i.checked:e.target.value),a("trace","Uib:eventSend","Sending msg to Node-RED",_)(),i.dataset&&i.dataset.length===0&&a("warn","Uib:eventSend","No payload in msg. data-* attributes should be used.")(),this._send(_,this._ioChannels.client,t)}send(e,t=""){this._send(e,this._ioChannels.client,t)}sendRoom(e,t){this._socket.emit("uib-room-send",e,t)}joinRoom(e){this._socket.emit("uib-room-join",e)}leaveRoom(e){this._socket.emit("uib-room-leave",e)}sendCtrl(e){this._send(e,this._ioChannels.control)}_getIOnamespace(){let e;if(e=this.cookies["uibuilder-namespace"],e===void 0||e===""){let t=window.location.pathname.split("/").filter(function(i){return i.trim()!==""});t.length>0&&t[t.length-1].endsWith(".html")&&t.pop(),e=t.pop(),a("trace","uibuilder.module.js:getIOnamespace","Socket.IO namespace found via url path: ".concat(e))()}else a("trace","uibuilder.module.js:getIOnamespace","Socket.IO namespace found via cookie: ".concat(e))();return this.url=e,e="/"+e,a("trace","uibuilder.module.js:getIOnamespace","Final Socket.IO namespace: ".concat(e))(),e}_checkConnect(e,t,i=1){if(navigator.onLine!==!1)return e||(e=this.retryMs),t||(t=this.retryFactor),a("trace","Uib:checkConnect","Checking connection. Connected: ".concat(this._socket.connected,". Timer: ").concat(u(this,k),". Depth: ").concat(i,". Delay: ").concat(e,". Factor: ").concat(t),this._socket)(),this._socket.connected===!0?(u(this,k)&&(window.clearTimeout(u(this,k)),A(this,k,null)),this.set("ioConnected",!0),this.set("socketError",null),!0):(this.set("ioConnected",!1),u(this,k)&&window.clearTimeout(u(this,k)),A(this,k,window.setTimeout(()=>{a("warn","Uib:checkConnect:setTimeout","Socket.IO reconnection attempt. Current delay: ".concat(e,". Depth: ").concat(i))(),this._socket.disconnect(),this._socket.connect(),A(this,k,null),this._checkConnect(e*t,t,i++)},e)),!1)}_onConnect(){a("info","Uib:ioSetup","\u2705 SOCKET CONNECTED. Connection count: ".concat(this.connectedNum,", Is a Recovery?: ").concat(this._socket.recovered,". \nNamespace: ").concat(this.ioNamespace))(),this._dispatchCustomEvent("uibuilder:socket:connected",{numConnections:this.connectedNum,isRecovery:this._socket.recovered}),this._checkConnect()}_onDisconnect(e){a("info","Uib:ioSetup:socket-disconnect","\u26D4 Socket Disconnected. Reason: ".concat(e))(),this._dispatchCustomEvent("uibuilder:socket:disconnected",e),this._checkConnect()}_ioSetup(){return q===void 0?(a("error","Uib:ioSetup","Socket.IO client not loaded, Node-RED comms will not work")(),!1):(this._socket&&(a("trace","Uib:ioSetup","Removing listeners in preparation for redoing Socket.IO connections")(),u(this,k)&&(window.clearTimeout(u(this,k)),A(this,k,null)),this._socket.close(),this._socket.offAny(),this._socket=void 0,this.set("ioConnected",!1)),this.socketOptions.path=this.ioPath,a("trace","Uib:ioSetup","About to create IO object. Transports: [".concat(this.socketOptions.transports.join(", "),"]"))(),this._socket=q(this.ioNamespace,this.socketOptions),this._connectGlobal(),this._socket.on("connect",this._onConnect.bind(this)),this._socket.on(this._ioChannels.server,this._stdMsgFromServer.bind(this)),this._socket.on(this._ioChannels.control,this._ctrlMsgFromServer.bind(this)),this._socket.on("disconnect",this._onDisconnect.bind(this)),this._socket.on("connect_error",e=>{navigator.onLine!==!1&&(a("error","Uib:ioSetup:connect_error","\u274C Socket.IO Connect Error. Reason: ".concat(e.message),e)(),this.set("ioConnected",!1),this.set("socketError",e),this._dispatchCustomEvent("uibuilder:socket:disconnected",e))}),this._socket.on("error",e=>{a("error","Uib:ioSetup:error","\u274C Socket.IO Error. Reason: ".concat(e.message),e)(),this.set("ioConnected",!1),this.set("socketError",e),this._dispatchCustomEvent("uibuilder:socket:disconnected",e)}),this._checkConnect(),!0)}_connectGlobal(){this._socketGlobal=q("/",this.socketOptions),this._socketGlobal.onAny((...e)=>{this.set("globalMsg",e.slice(0,-1))})}connect(){this._socket.connect()}disconnect(){this._socket.disconnect(),u(this,k)&&window.clearTimeout(u(this,k))}start(e){a("trace","Uib:start","Starting")(),u(this,oe)&&this.cancelChange("msg",u(this,oe)),this.started===!0&&a("info","Uib:start","Start function already called. Resetting Socket.IO and msg handler.")(),a("log","Uib:start","Cookies: ",this.cookies,"\nClient ID: ".concat(this.clientId))(),a("trace","Uib:start","ioNamespace: ",this.ioNamespace,"\nioPath: ".concat(this.ioPath))(),e&&(e.ioNamespace&&this.set("ioNamespace",e.ioNamespace),e.ioPath&&this.set("ioPath",e.ioPath),e.nopolling&&this.socketOptions.transports[0]==="polling"&&this.socketOptions.transports.shift()),document.styleSheets.length>=1||document.styleSheets.length===1&&document.styleSheets[0].cssRules.length===0?a("info","Uib:start","Styles already loaded so not loading uibuilder default styles.")():e&&e.loadStylesheet===!1?a("info","Uib:start","No styles loaded & options.loadStylesheet === false.")():(a("info","Uib:start","No styles loaded, loading uibuilder default styles.")(),this.loadStyleSrc("".concat(this.httpNodeRoot,"/uibuilder/uib-brand.min.css")));let[t]=performance.getEntriesByType("navigation");if(this.set("lastNavType",t.type),this.set("started",this._ioSetup()),this.started===!0?a("trace","Uib:start","Start completed. Socket.IO client library loaded.")():a("error","Uib:start","Start completed. ERROR: Socket.IO client library NOT LOADED.")(),this._watchHashChanges(),window.Vue){this.set("isVue",!0);try{this.set("vueVersion",window.Vue.version)}catch{}a("trace","Uib:start","VueJS is loaded. Version: ".concat(this.vueVersion))()}else a("trace","Uib:start","VueJS is not loaded.")();window.DOMPurify?(this.set("purify",!0),a("trace","Uib:start","DOMPurify is loaded.")()):a("trace","Uib:start","DOMPurify is not loaded.")(),window.markdownit?(this.set("markdown",!0),a("trace","Uib:start","Markdown-IT is loaded.")()):a("trace","Uib:start","Markdown-IT is not loaded.")(),this.onChange("msg",i=>{if(u(this,z)===!0){let r=document.getElementById("uib_last_msg");r&&(r.innerHTML=this.syntaxHighlight(i))}}),this._dispatchCustomEvent("uibuilder:startComplete")}},H=new WeakMap,O=new WeakMap,$=new WeakMap,k=new WeakMap,oe=new WeakMap,z=new WeakMap,G=new WeakMap,F=new WeakMap,ve=new WeakMap,ae=new WeakMap,ce=new WeakMap,D=new WeakMap,l(E,"_meta",{version:wt,type:"module",displayName:"uibuilder"}),E),ke=new ei;window.uibuilder?a("error","uibuilder.module.js","`uibuilder` already assigned to window. Have you tried to load it more than once?"):window.uibuilder=ke;window.uib?a("warn","uibuilder.module.js","`uib` shortcut already assigned to window."):window.uib=ke;window.$?a("warn","uibuilder.module.js","Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` or `uib.$` instead."):window.$=window.uibuilder.$;window.$$?a("warn","uibuilder.module.js","Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` or `uib.$$` instead."):window.$$=window.uibuilder.$$;window.$ui?a("warn","uibuilder.module.js","Cannot allocate the global `$ui`, it is already in use. Use `uibuilder.$ui` or `uib.$ui` instead."):window.$ui=window.uibuilder.$ui;var Js=ke;ke.start();customElements.define("uib-var",ne);})();
 //# sourceMappingURL=uibuilder.iife.min.js.map
diff --git a/front-end/uibuilder.iife.min.js.map b/front-end/uibuilder.iife.min.js.map
index 139e491a..5d875cf5 100644
--- a/front-end/uibuilder.iife.min.js.map
+++ b/front-end/uibuilder.iife.min.js.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
-  "sources": ["src/front-end-module/ui.js", "src/front-end-module/uibuilder.module.js", "src/components/uib-var.js", "node_modules/engine.io-parser/build/esm/commons.js", "node_modules/engine.io-parser/build/esm/encodePacket.browser.js", "node_modules/engine.io-parser/build/esm/contrib/base64-arraybuffer.js", "node_modules/engine.io-parser/build/esm/decodePacket.browser.js", "node_modules/engine.io-parser/build/esm/index.js", "node_modules/@socket.io/component-emitter/index.mjs", "node_modules/engine.io-client/build/esm/globalThis.browser.js", "node_modules/engine.io-client/build/esm/util.js", "node_modules/engine.io-client/build/esm/contrib/parseqs.js", "node_modules/engine.io-client/build/esm/transport.js", "node_modules/engine.io-client/build/esm/contrib/yeast.js", "node_modules/engine.io-client/build/esm/contrib/has-cors.js", "node_modules/engine.io-client/build/esm/transports/xmlhttprequest.browser.js", "node_modules/engine.io-client/build/esm/transports/polling.js", "node_modules/engine.io-client/build/esm/transports/websocket-constructor.browser.js", "node_modules/engine.io-client/build/esm/transports/websocket.js", "node_modules/engine.io-client/build/esm/transports/webtransport.js", "node_modules/engine.io-client/build/esm/transports/index.js", "node_modules/engine.io-client/build/esm/contrib/parseuri.js", "node_modules/engine.io-client/build/esm/socket.js", "node_modules/engine.io-client/build/esm/index.js", "node_modules/socket.io-client/build/esm/url.js", "node_modules/socket.io-parser/build/esm/index.js", "node_modules/socket.io-parser/build/esm/is-binary.js", "node_modules/socket.io-parser/build/esm/binary.js", "node_modules/socket.io-client/build/esm/on.js", "node_modules/socket.io-client/build/esm/socket.js", "node_modules/socket.io-client/build/esm/contrib/backo2.js", "node_modules/socket.io-client/build/esm/manager.js", "node_modules/socket.io-client/build/esm/index.js"],
-  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\n// Namespaces - See https://stackoverflow.com/a/52572048/1309986\n// const NAMESPACES = {\n//     svg: 'http://www.w3.org/2000/svg',\n//     html: 'http://www.w3.org/1999/xhtml',\n//     xml: 'http://www.w3.org/XML/1998/namespace',\n//     xlink: 'http://www.w3.org/1999/xlink',\n//     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n// }\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    //#region ---- Internal Methods ----\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                if (attrib === 'class' && Array.isArray(comp.attributes[attrib])) comp.attributes[attrib].join(' ')\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n    } // --- end of _uiManager ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    //#endregion ---- -------- ----\n    //#region ---- External Methods ----\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {HTMLElement|null} Selected HTML element or null\n     */\n    $(cssSelector) {\n        /** @type {*} Some kind of HTML element */\n        let el = document.querySelector(cssSelector)\n\n        if (!el) {\n            Ui.log(1, 'Uib:$', `No element found for CSS selector ${cssSelector}`)()\n            return null\n        }\n\n        if ( el.nodeName === 'TEMPLATE' ) {\n            el = el.content.firstElementChild\n            if (!el) {\n                Ui.log(0, 'Uib:$', `Template selected for CSS selector ${cssSelector} but it is empty`)()\n                return null\n            }\n        }\n\n        return el\n    }\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {string} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {HTMLElement[]} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$(cssSelector) {\n        return Array.from(document.querySelectorAll(cssSelector))\n    }\n\n    /** Add 1 or several class names to an element\n     * @param {string|string[]} classNames Single or array of classnames\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    addClass(classNames, el) {\n        if (!Array.isArray(classNames)) classNames = [classNames]\n        if (el) el.classList.add(...classNames)\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n                if (attrib.name === 'class') thisOut.classes = Array.from(node.classList)\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    /** Remove All, 1 or more class names from an element\n     * @param {undefined|null|\"\"|string|string[]} classNames Single or array of classnames. If undefined, \"\" or null, remove all classes\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    removeClass(classNames, el) {\n        if (!classNames) {\n            el.removeAttribute('class')\n            return\n        }\n        if (!Array.isArray(classNames)) classNames = [classNames]\n        if (el) el.classList.remove(...classNames)\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += `<div>${msg.payload}</div>`\n        if (ui.content) content += `<div>${ui.content}</div>`\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        console.log(this)\n        this._uiManager(msg)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName) {\n                if (propName === 'classes') propName = 'class'\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    const p = {}\n                    // Nightmare of different object types in a DOM Element!\n                    const cType = prop.constructor.name.toLowerCase()\n                    if (cType === 'namednodemap') {\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                    } else if (!cType.includes('map')) { // Ordinary properties (not a mapped type)\n                        p[propName] = prop\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                    }\n                    if (p.class) p.classes = Array.from(node.classList)\n                    out.push(p)\n                }\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    /** External alias for _uiComposeComponent\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    //#endregion ---- -------- ----\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n", "/* This is the Front-End JavaScript for uibuilder  in HTML Module form\n  It provides a number of global objects that can be used in your own javascript.\n  see the docs folder `./docs/uibuilder.module.md` for details of how to use this fully.\n\n  Please use the default index.js file for your own code and leave this as-is.\n  See Uib._meta for client version string\n\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n//#region --- Type Defs --- //\n/**\n * A string containing HTML markup\n * @typedef {string} html\n */\n//#endregion --- Type Defs --- //\n\n//#region --- We need the Socket.IO & ui libraries & the uib-var component  --- //\n// @ts-ignore - Note: Only works when using esbuild to bundle\nimport Ui from './ui'\nimport UibVar from '../components/uib-var'\nimport io from 'socket.io-client'\n\n// TODO - Maybe - check if already loaded as window['io']?\n// TODO - Maybe - Should this be moved to inside the class - would know the httpRoot then so less need to guess?\n// TODO           Or, could pull the cookie processing out of the class\n// const ioLocns = [ // Likely locations of the Socket.IO client library\n//     // Where it should normally be\n//     '../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and haven't changed httpNodeRoot\n//     '/uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Where it might be if using a custom uib Express server and have changed httpNodeRoot\n//     '../../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     '../../uibuilder/vendor/socket.io-client/socket.io.esm.min.js',\n//     // Direct from the Internet - last ditch attempt\n//     'https://cdn.jsdelivr.net/npm/socket.io-client/+esm',\n// ]\n\n// let io\n// for (const locn of ioLocns) {\n//     try {\n//         ({ io } = await import(locn))\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library found at '${locn}'`)()\n//     } catch (e) {\n//         log('trace', 'uibuilder.module.js:io', `Socket.IO client library not found at '${locn}'`)()\n//     }\n//     if (io) break\n// }\n// if (!io) log('error', 'uibuilder.module.js', 'Socket.IO client failed to load')()\n//#endregion -------- -------- -------- //\n\nconst version = '6.8.0-src'\n\n// TODO Add option to allow log events to be sent back to Node-RED as uib ctrl msgs\n//#region --- Module-level utility functions --- //\n\n// @ts-ignore Detect whether the loaded library is minified or not\nconst isMinified = !(/param/).test(function (param) { }) // eslint-disable-line no-unused-vars\n\n//#region --- print/console - debugging output functions --- //\n\n/** Default log level - Error & Warn */\nlet logLevel = isMinified ? 0 : 1  // When using minified lib, assume production and only log errors otherwise also log warn\n// function changeLogLevel(level) {\n//     logLevel = level\n//     console.trace = logLevel < 4 ? function(){} : console.trace\n//     console.debug = logLevel < 2 ? function(){} : console.debug\n//     if ( logLevel < 1 ) {\n//         console.log = console.group = console.groupEnd =  function(){}\n//     }\n// }\n\n// Experimental\nconst LOG_STYLES = {\n    // 0\n    error: {\n        css: 'background: red; color: black;',\n        txtCss: 'color: red; ',\n        pre: '\u26D4 ',\n        console: 'error',  // or trace\n    },\n    // 1\n    warn: {\n        css: 'background: darkorange; color: black;',\n        txtCss: 'color: darkorange; ',\n        pre: '\u26A0 ',\n        console: 'warn',\n    },\n    // 2\n    info: {\n        css: 'background: aqua; color: black;',\n        txtCss: 'color: aqua;',\n        pre: '\u2757 ',\n        console: 'info',\n    },\n    // 3\n    log: {\n        css: 'background: grey; color: yellow;',\n        txtCss: 'color: grey;',\n        pre: '',\n        console: 'log',\n    },\n    // 4\n    debug: {\n        css: 'background: chartreuse; color: black;',\n        txtCss: 'color: chartreuse;',\n        pre: '',\n        console: 'debug',\n    },\n    // 5\n    trace: {\n        css: 'background: indigo; color: yellow;',\n        txtCss: 'color: hotpink;',\n        pre: '',\n        console: 'log',\n    },\n\n    names: ['error', 'warn', 'info', 'log', 'debug', 'trace'],\n    reset: 'color: inherit;',\n    head: 'font-weight:bold; font-style:italic;',\n    level: 'font-weight:bold; border-radius: 3px; padding: 2px 5px; display:inline-block;',\n}\n/** Custom logging. e.g. log(2, 'here:there', 'jiminy', {fred:'jim'})()\n * @returns {Function} Log function @example log(2, 'here:there', 'jiminy', {fred:'jim'})()\n */\nfunction log() {\n    // Get the args\n    const args = Array.prototype.slice.call(arguments)\n\n    // 1st arg is the log level/type\n    let level = args.shift()\n    let strLevel\n    switch (level) {\n        case 'trace':\n        case 5: {\n            if (logLevel < 5) break\n            level = 5 // make sure level is numeric\n            strLevel = 'trace'\n            break\n        }\n\n        case 'debug':\n        case 4: {\n            if (logLevel < 4) break\n            level = 4\n            strLevel = 'debug'\n            break\n        }\n\n        case 'log':\n        case 3: {\n            if (logLevel < 3) break\n            level = 3\n            strLevel = 'log'\n            break\n        }\n\n        case 'info':\n        case '':\n        case 2: {\n            if (logLevel < 2) break\n            level = 2\n            strLevel = 'info'\n            break\n        }\n\n        case 'warn':\n        case 1: {\n            if (logLevel < 1) break\n            level = 1\n            strLevel = 'warn'\n            break\n        }\n\n        case 'error':\n        case 'err':\n        case 0: {\n            if (logLevel < 0) break\n            level = 0\n            strLevel = 'error'\n            break\n        }\n\n        default: {\n            level = -1\n            break\n        }\n\n    }\n\n    // If set to something unknown, no log output\n    if (strLevel === undefined) return function () { }\n\n    // 2nd arg is a heading that will be colour highlighted\n    const head = args.shift()\n\n    // Bind back to console.log (could use console[strLevel] but some levels ignore some formatting, use console.xxx directly or dedicated fn)\n    return Function.prototype.bind.call(\n        console[LOG_STYLES[strLevel].console],\n        console,\n        `%c${LOG_STYLES[strLevel].pre}${strLevel}%c [${head}]`, `${LOG_STYLES.level} ${LOG_STYLES[strLevel].css}`, `${LOG_STYLES.head} ${LOG_STYLES[strLevel].txtCss}`,\n        ...args\n    )\n}\n//#endregion\n\n/** A hack to dynamically load a remote module and wait until it is loaded\n * @param {string} url The URL of the module to load\n * @returns {object|null} Either the result object or null (if the load fails)\n */\n// function loadModule(url) { // eslint-disable-line no-unused-vars\n//     let done\n\n//     import(url)\n//         .then(res => {\n//             log('debug', '>> then >>', res)()\n//             done = res\n//         })\n//         .catch(err => {\n//             console.error(`[uibuilder:loadModule] Could not load module ${url}`, err)\n//             done = null\n//         })\n\n//     //  eslint-disable-next-line no-empty\n//     while (!done) { } // eslint-disable-line no-unmodified-loop-condition\n\n//     return done\n// }\n\n/** Makes a null or non-object into an object\n * If not null, moves \"thing\" to {payload:thing}\n *\n * @param {*} thing Thing to check\n * @param {string} [property='payload'] property that \"thing\" is moved to if not null and not an object\n * @returns {!object} _\n */\nfunction makeMeAnObject(thing, property) {\n    if (!property) property = 'payload'\n    if (typeof property !== 'string') {\n        log('warn', 'uibuilderfe:makeMeAnObject', `WARNING: property parameter must be a string and not: ${typeof property}`)()\n        property = 'payload'\n    }\n    let out = {}\n    if ( thing !== null && thing.constructor.name === 'Object' ) {\n        out = thing\n    } else if (thing !== null) {\n        out[property] = thing\n    }\n    return out\n} // --- End of make me an object --- //\n\n/** Joins all arguments as a URL string\n * see http://stackoverflow.com/a/28592528/3016654\n * since v1.0.10, fixed potential double // issue\n * arguments {string} URL fragments\n * @returns {string} _\n */\nfunction urlJoin() {\n    const paths = Array.prototype.slice.call(arguments)\n    const url = '/' + paths.map(function (e) {\n        return e.replace(/^\\/|\\/$/g, '')\n    })\n        .filter(function (e) {\n            return e\n        })\n        .join('/')\n    return url.replace('//', '/')\n} // ---- End of urlJoin ---- //\n\n/** Convert JSON to Syntax Highlighted HTML\n * @param {object} json A JSON/JavaScript Object\n * @returns {html} Object reformatted as highlighted HTML\n */\nfunction syntaxHighlight(json) {\n    if (json === undefined) {\n        json = '<span class=\"undefined\">undefined</span>'\n    } else {\n        try {\n            json = JSON.stringify(json, undefined, 4)\n            // json = json.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;') // eslint-disable-line newline-per-chained-call\n            json = json.replace(/(\"(\\\\u[a-zA-Z0-9]{4}|\\\\[^u]|[^\\\\\"])*\"(\\s*:)?|\\b(true|false|null)\\b|-?\\d+(?:\\.\\d*)?(?:[eE][+-]?\\d+)?)/g, function (match) { // eslint-disable-line prefer-named-capture-group\n                let cls = 'number'\n                if ((/^\"/).test(match)) {\n                    if ((/:$/).test(match)) {\n                        cls = 'key'\n                    } else {\n                        cls = 'string'\n                    }\n                } else if ((/true|false/).test(match)) {\n                    cls = 'boolean'\n                } else if ((/null/).test(match)) {\n                    cls = 'null'\n                }\n                return `<span class=\"${cls}\">${match}</span>`\n            })\n        } catch (e) {\n            json = `Syntax Highlight ERROR: ${e.message}`\n        }\n    }\n    return json\n}\n\n/** msg._ui handling functions */\nconst _ui = new Ui(window, log, syntaxHighlight)\n\n//#endregion --- Module-level utility functions --- //\n\n/** Define and export the Uib class - note that an instance of the class is also exported in the wrap-up\n * @typicalname uibuilder\n */\nexport const Uib = class Uib {\n\n    //#region --- Static variables ---\n    static _meta = {\n        version: version,\n        type: 'module',\n        displayName: 'uibuilder',\n    }\n    //#endregion ---- ---- ---- ----\n\n    //#region private class vars\n\n    // How many times has the loaded instance connected to Socket.IO (detect if not a new load?)\n    connectedNum = 0\n    // event listener callbacks by property name\n    // #events = {}\n    // Socket.IO channel names\n    _ioChannels = { control: 'uiBuilderControl', client: 'uiBuilderClient', server: 'uiBuilder' }\n    /** setInterval holder for pings @type {function|undefined} */\n    #pingInterval\n    // onChange event callbacks\n    #propChangeCallbacks = {}\n    // onTopic event callbacks\n    #msgRecvdByTopicCallbacks = {}\n    // Is Vue available?\n    isVue = false\n    // What version? Set in startup if Vue is loaded. Won't always work\n    vueVersion = undefined\n    /** setInterval id holder for Socket.IO checkConnect\n     * @type {number|null}\n     */\n    #timerid = null\n    // Holds the reference ID for the internal msg change event handler so that it can be cancelled\n    #MsgHandler\n    // Placeholder for io.socket - can't make a # var until # fns allowed in all browsers\n    _socket\n    // Placeholder for an observer that watches the whole DOM for changes - can't make a # var until # fns allowed in all browsers\n    _htmlObserver\n    // Has showMsg been turned on?\n    #isShowMsg = false\n    // Has showStatus been turned on?\n    #isShowStatus = false\n    // If true, URL hash changes send msg back to node-red. Controlled by watchUrlHash()\n    #sendUrlHash = false\n    // Externally accessible command functions (NB: Case must match) - remember to update _uibCommand for new commands\n    #extCommands = [\n        'elementExists', 'get', 'getManagedVarList', 'getWatchedVars', 'htmlSend', 'include',\n        'navigate', 'scrollTo', 'set', 'showMsg', 'showStatus', 'uiGet', 'uiWatch', 'watchUrlHash',\n    ]\n\n    /** @type {{[key: string]: string}} Managed uibuilder variables */\n    #managedVars = {}\n\n    // What status variables to show via showStatus()\n    #showStatus = {\n        online: { 'var': 'online', 'label': 'Online?', 'description': 'Is the browser online?', },\n        ioConnected: { 'var': 'ioConnected', 'label': 'Socket.IO connected?', 'description': 'Is Socket.IO connected?', },\n        connectedNum: { 'var': 'connectedNum', 'label': '# reconnections', 'description': 'How many times has Socket.IO had to reconnect since last page load?', },\n\n        clientId: { 'var': 'clientId', 'label': 'Client ID', 'description': 'Static client unique id set in Node-RED. Only changes when browser is restarted.', },\n        tabId: { 'var': 'tabId', 'label': 'Browser tab ID', 'description': 'Static unique id for the browser\\'s current tab', },\n        cookies: { 'var': 'cookies', 'label': 'Cookies', 'description': 'Cookies set in Node-RED', },\n        httpNodeRoot: { 'var': 'httpNodeRoot', 'label': 'httpNodeRoot', 'description': 'From Node-RED\\' settings.js, affects URL\\'s. May be wrong for pages in sub-folders', },\n        pageName: { 'var': 'pageName', 'label': 'Page name', 'description': 'Actual name of this page', },\n\n        ioNamespace: { 'var': 'ioNamespace', 'label': 'SIO namespace', 'description': 'Socket.IO namespace - unique to each uibuilder node instance', },\n        // ioPath: { 'var': 'ioPath', 'label': 'SIO path', 'description': '', }, // no longer needed in the modern client\n        socketError: { 'var': 'socketError', 'label': 'Socket error', 'description': 'If the Socket.IO connection has failed, says why', },\n\n        msgsSent: { 'var': 'msgsSent', 'label': '# msgs sent', 'description': 'How many standard messages have been sent to Node-RED?', },\n        msgsReceived: { 'var': 'msgsReceived', 'label': '# msgs received', 'description': 'How many standard messages have been received from Node-RED?', },\n        msgsSentCtrl: { 'var': 'msgsSentCtrl', 'label': '# control msgs sent', 'description': 'How many control messages have been sent to Node-RED?', },\n        msgsCtrlReceived: { 'var': 'msgsCtrlReceived', 'label': '# control msgs received', 'description': 'How many control messages have been received from Node-RED?', },\n        originator: { 'var': 'originator', 'label': 'Node Originator', 'description': 'If the last msg from Node-RED was from a `uib-sender` node, this will be its node id so that messasges can be returned to it', },\n        topic: { 'var': 'topic', 'label': 'Default topic', 'description': 'Optional default topic to be included in outgoing standard messages', },\n\n        started: { 'var': 'started', 'label': 'Has uibuilder client started?', 'description': 'Whether `uibuilder.start()` ran successfully. This should self-run and should not need to be run manually', },\n        version: { 'var': 'version', 'label': 'uibuilder client version', 'description': 'The version of the loaded uibuilder client library', },\n        serverTimeOffset: { 'var': 'serverTimeOffset', 'label': 'Server time offset (Hrs)', 'description': 'The number of hours difference between the Node-red server and the client', },\n    }\n\n    // Track ui observers (see uiWatch)\n    #uiObservers = {}\n\n    //#endregion\n\n    //#region public class vars\n\n    // TODO Move to proper getters\n    //#region ---- Externally read-only (via .get method) ---- //\n    // version - moved to _meta\n    /** Client ID set by uibuilder on connect */\n    clientId = ''\n    /** The collection of cookies provided by uibuilder */\n    cookies = {}\n    /** Copy of last control msg object received from sever */\n    ctrlMsg = {}\n    /** Is Socket.IO client connected to the server? */\n    ioConnected = false\n    // Is the browser tab containing this page visible or not?\n    isVisible = false\n    // Remember the last page (re)load/navigation type: navigate, reload, back_forward, prerender\n    lastNavType = ''\n    /** Last std msg received from Node-RED */\n    msg = {}\n    /** number of messages sent to server since page load */\n    msgsSent = 0\n    /** number of messages received from server since page load */\n    msgsReceived = 0\n    /** number of control messages sent to server since page load */\n    msgsSentCtrl = 0\n    /** number of control messages received from server since page load */\n    msgsCtrlReceived = 0\n    /** Is the client online or offline? */\n    online = navigator.onLine\n    /** last control msg object sent via uibuilder.send() @since v2.0.0-dev3 */\n    sentCtrlMsg = {}\n    /** last std msg object sent via uibuilder.send() */\n    sentMsg = {}\n    /** placeholder to track time offset from server, see fn socket.on(ioChannels.server ...) */\n    serverTimeOffset = null\n    /** placeholder for a socket error message */\n    socketError = null\n    // tab identifier from session storage\n    tabId = ''\n    // Actual name of current page (set in constructor)\n    pageName = null\n    // Is the DOMPurify library loaded? Updated in start()\n    purify = false\n    // Is the Markdown-IT library loaded? Updated in start()\n    markdown = false\n    // Current URL hash. Initial set is done from start->watchHashChanges via a set to make it watched\n    urlHash = location.hash\n    //#endregion ---- ---- ---- ---- //\n\n    // TODO Move to proper getters/setters\n    //#region ---- Externally Writable (via .set method, read via .get method) ---- //\n    /** Default originator node id - empty string by default\n     * @type {string}\n     */\n    originator = ''\n    /** Default topic - used by send if set and no topic provided\n     * @type {(string|undefined)}\n     */\n    topic = undefined\n    //#endregion ---- ---- ---- ---- //\n\n    //#region ---- These are unlikely to be needed externally: ----\n    autoSendReady = true\n    httpNodeRoot = '' // Node-RED setting (via cookie)\n    ioNamespace = ''\n    ioPath = ''\n    retryFactor = 1.5       // starting delay factor for subsequent reconnect attempts\n    retryMs = 2000          // starting retry ms period for manual socket reconnections workaround\n    storePrefix = 'uib_'    // Prefix for all uib-related localStorage\n    started = false\n    // NOTE: These can only change when a client (re)connects\n    socketOptions = {\n        path: this.ioPath,\n        transports: ['polling', 'websocket'],\n        // Using callback so that they are updated automatically on (re)connect\n        // Only put things in here that will be valid for a websocket connected session\n        auth: (cb) => {\n            cb({ // eslint-disable-line n/no-callback-literal\n                clientVersion: version,\n                clientId: this.clientId,\n                pathName: window.location.pathname,\n                urlParams: Object.fromEntries(new URLSearchParams(location.search)),\n                pageName: this.pageName,\n                tabId: this.tabId,\n                lastNavType: this.lastNavType,\n                connectedNum: ++this.connectedNum,\n                // Used to calculate the diff between the server and client connection timestamps - reported if >1 minute\n                browserConnectTimestamp: (new Date()).toISOString(),\n            })\n        },\n        transportOptions: {\n            // Can only set headers when polling\n            polling: {\n                extraHeaders: {\n                    'x-clientid': `${Uib._meta.displayName}; ${Uib._meta.type}; ${Uib._meta.version}; ${this.clientId}`,\n                }\n            },\n        },\n    }\n    //#endregion -- not external --\n\n    //#endregion --- End of variables ---\n\n    //#region ------- Getters and Setters ------- //\n\n    // Change logging level dynamically (affects both console. and print.)\n    set logLevel(level) { logLevel = level; console.log('%c\u2757 info%c [logLevel]', `${LOG_STYLES.level} ${LOG_STYLES.info.css}`, `${LOG_STYLES.head} ${LOG_STYLES.info.txtCss}`, `Set to ${level} (${LOG_STYLES.names[level]})`) /* changeLogLevel(level)*/ }\n    get logLevel() { return logLevel }\n\n    get meta() { return Uib._meta }\n\n    /** Function to set uibuilder properties to a new value - works on any property except _* or #*\n     * Also triggers any event listeners.\n     * Example: this.set('msg', {topic:'uibuilder', payload:42});\n     * @param {string} prop Any uibuilder property who's name does not start with a _ or #\n     * @param {*} val The set value of the property or a string declaring that a protected property cannot be changed\n     * @param {boolean} [store] If true, the variable is also saved to the browser localStorage if possible\n     * @param {boolean} [autoload] If true & store is true, on load, uib will try to restore the value from the store automatically\n     * @returns {*} Input value\n     */\n    set(prop, val, store = false, autoload = false) {\n        // Check for excluded properties - we don't want people to set these\n        // if (this.#excludedSet.indexOf(prop) !== -1) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:set', `Cannot use set() on protected property \"${prop}\"`)()\n            return `Cannot use set() on protected property \"${prop}\"`\n        }\n\n        // We must add the var to the uibuilder object\n        this[prop] = val\n\n        // Keep track of all managed variables\n        this.#managedVars[prop] = prop\n\n        // If requested, save to store\n        if (store === true) this.setStore(prop, val, autoload)\n\n        log('trace', 'Uib:set', `prop set - prop: ${prop}, val: `, val, ` store: ${store}, autoload: ${autoload}`)()\n\n        // Trigger this prop's event callbacks (listeners which are set by this.onChange)\n        // this.emit(prop, val)\n\n        // trigger an event on the prop name, pass both the name and value to the event details\n        this._dispatchCustomEvent('uibuilder:propertyChanged', { 'prop': prop, 'value': val, 'store': store, 'autoload': autoload })\n\n        return val\n    }\n\n    /** Function to get the value of a uibuilder property\n     * Example: uibuilder.get('msg')\n     * @param {string} prop The name of the property to get as long as it does not start with a _ or #\n     * @returns {*|undefined} The current value of the property\n     */\n    get(prop) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:get', `Cannot use get() on protected property \"${prop}\"`)()\n            return\n        }\n        if (prop === 'version') return Uib._meta.version\n        if (prop === 'msgsCtrl') return this.msgsCtrlReceived\n        if (prop === 'reconnections') return this.connectedNum\n        if (this[prop] === undefined) {\n            log('warn', 'Uib:get', `get() - property \"${prop}\" is undefined`)()\n        }\n        return this[prop]\n    }\n\n    /** Write to localStorage if possible. console error output if can't write\n     * Also uses this.storePrefix\n     * @example\n     *   uibuilder.setStore('fred', 42)\n     *   console.log(uibuilder.getStore('fred'))\n     * @param {string} id localStorage var name to be used (prefixed with 'uib_')\n     * @param {*} value value to write to localstore\n     * @param {boolean} [autoload] If true, on load, uib will try to restore the value from the store\n     * @returns {boolean} True if succeeded else false\n     */\n    setStore(id, value, autoload = false) {\n        let autoVars = {}\n        if (autoload === true) {\n            try {\n                autoVars = this.getStore('_uibAutoloadVars') || {}\n            } catch (e) {}\n        }\n        if (typeof value === 'object') {\n            try {\n                value = JSON.stringify(value)\n            } catch (e) {\n                log('error', 'Uib:setStore', 'Cannot stringify object, not storing. ', e)()\n                return false\n            }\n        }\n        try {\n            localStorage.setItem(this.storePrefix + id, value)\n            if (autoload) {\n                autoVars[id] = id\n                try {\n                    localStorage.setItem(this.storePrefix + '_uibAutoloadVars', JSON.stringify(autoVars))\n                } catch (e) {\n                    log('error', 'Uib:setStore', 'Cannot save autoload list. ', e)()\n                }\n            }\n            this._dispatchCustomEvent('uibuilder:propertyStored', { 'prop': id, 'value': value, 'autoload': autoload })\n            return true\n        } catch (e) {\n            log('error', 'Uib:setStore', 'Cannot write to localStorage. ', e)()\n            return false\n        }\n    } // --- end of setStore --- //\n\n    /** Attempt to get and re-hydrate a key value from localStorage\n     * Note that all uib storage is automatically prefixed using this.storePrefix\n     * @param {*} id The key of the value to attempt to retrieve\n     * @returns {*|null|undefined} The re-hydrated value of the key or null if key not found, undefined on error\n     */\n    getStore(id) {\n        try {\n            // @ts-ignore\n            return JSON.parse(localStorage.getItem(this.storePrefix + id))\n        } catch (e) { }\n        try {\n            return localStorage.getItem(this.storePrefix + id)\n        } catch (e) {\n            return undefined\n        }\n    }\n\n    /** Remove a given id from the uib keys in localStorage\n     * @param {*} id The key to remove\n     */\n    removeStore(id) {\n        try {\n            localStorage.removeItem(this.storePrefix + id)\n        } catch (e) { }\n    }\n\n    /** Returns a list of uibuilder properties (variables) that can be watched with onChange\n     * @returns {{[key: string]: string}} List of uibuilder managed variables\n     */\n    getManagedVarList() {\n        return this.#managedVars\n    }\n\n    getWatchedVars() {\n        return Object.keys(this.#propChangeCallbacks)\n    }\n\n    //#endregion ------- -------- ------- //\n\n    //#region ------- Our own event handling system ---------- //\n\n    // TODO Add option to send event details back to Node-RED as uib ctrl msg\n    /** Standard fn to create a custom event with details & dispatch it\n     * @param {string} title The event name\n     * @param {*} details Any details to pass to event output\n     */\n    _dispatchCustomEvent(title, details) {\n        const event = new CustomEvent(title, { detail: details })\n        document.dispatchEvent(event)\n    }\n\n    // See the this.#propChangeCallbacks & msgRecvdByTopicCallbacks private vars\n\n    /** Register on-change event listeners for uibuilder tracked properties\n     * Make it possible to register a function that will be run when the property changes.\n     * Note that you can create listeners for non-existant properties\n     * @example: uibuilder.onChange('msg', (msg) => { console.log('uibuilder.msg changed! It is now: ', msg) })\n     *\n     * @param {string} prop The property of uibuilder that we want to monitor\n     * @param {Function} callback The function that will run when the property changes, parameter is the new value of the property after change\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelChange if you need to remove a listener\n     */\n    onChange(prop, callback) {\n        // Note: Property does not have to exist yet\n\n        // console.debug(`[Uib:onchange] pushing new callback (event listener) for property: ${prop}`)\n\n        // Create a new array or add to the array of callback functions for the property in the events object\n        // if (this.#events[prop]) {\n        //     this.#events[prop].push(callback)\n        // } else {\n        //     this.#events[prop] = [callback]\n        // }\n\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#propChangeCallbacks[prop]) this.#propChangeCallbacks[prop] = { _nextRef: 1 }\n        else this.#propChangeCallbacks[prop]._nextRef++\n\n        const nextCbRef = this.#propChangeCallbacks[prop]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const propChangeCallback = this.#propChangeCallbacks[prop][nextCbRef] = function propChangeCallback(e) {\n            // If the prop name matches the 1st arg in the onChange fn:\n            if (prop === e.detail.prop) {\n                const value = e.detail.value\n                // console.warn('[Uib:onChange:evt] uibuilder:propertyChanged. ', e.detail)\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(value, value)\n            }\n        }\n\n        document.addEventListener('uibuilder:propertyChanged', propChangeCallback)\n\n        return nextCbRef\n    } // ---- End of onChange() ---- //\n\n    cancelChange(prop, cbRef) {\n        document.removeEventListener('uibuilder:propertyChanged', this.#propChangeCallbacks[prop][cbRef])\n        delete this.#propChangeCallbacks[prop][cbRef]\n        // this.#propChangeCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Register a change callback for a specific msg.topic\n     * Similar to onChange but more convenient if needing to differentiate by msg.topic.\n     * @example: let otRef = uibuilder.onTopic('mytopic', function(){ console.log('Received a msg with msg.topic=`mytopic`. msg: ', this) })\n     * To cancel a change listener: uibuilder.cancelTopic('mytopic', otRef)\n     *\n     * @param {string} topic The msg.topic we want to listen for\n     * @param {Function} callback The function that will run when an appropriate msg is received. `this` inside the callback as well as the cb's single argument is the received msg.\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelTopic if you need to remove a listener\n     */\n    onTopic(topic, callback) {\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#msgRecvdByTopicCallbacks[topic]) this.#msgRecvdByTopicCallbacks[topic] = { _nextRef: 1 }\n        else this.#msgRecvdByTopicCallbacks[topic]._nextRef++\n\n        const nextCbRef = this.#msgRecvdByTopicCallbacks[topic]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const msgRecvdEvtCallback = this.#msgRecvdByTopicCallbacks[topic][nextCbRef] = function msgRecvdEvtCallback(e) {\n            const msg = e.detail\n            // console.log('[Uib:onTopic:evt] uibuilder:stdMsgReceived where topic matches. ', e.detail)\n            if (msg.topic === topic) {\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(msg, msg)\n            }\n        }\n\n        document.addEventListener('uibuilder:stdMsgReceived', msgRecvdEvtCallback)\n\n        return nextCbRef\n    }\n\n    cancelTopic(topic, cbRef) {\n        document.removeEventListener('uibuilder:stdMsgReceived', this.#msgRecvdByTopicCallbacks[topic][cbRef])\n        delete this.#msgRecvdByTopicCallbacks[topic][cbRef]\n        // this.#msgRecvdCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Trigger event listener for a given property\n     * Called when uibuilder.set is used\n     *\n     * @param {*} prop The property for which to run the callback functions\n     * arguments: Additional arguments contain the value to pass to the event callback (e.g. newValue)\n     */\n    // emit(prop) {\n    //     var evt = this.#events[prop]\n    //     if (!evt) {\n    //         return\n    //     }\n    //     var args = Array.prototype.slice.call(arguments, 1)\n    //     for (var i = 0; i < evt.length; i++) {\n    //         evt[i].apply(this, args)\n    //     }\n    //     log('trace', 'Uib:emit', `${evt.length} listeners run for prop ${prop} `)()\n    // }\n\n    /** Forcibly removes all event listeners from the events array\n     * Use if you need to re-initialise the environment\n     */\n    // clearEventListeners() {\n    //     this.#events = []\n    // } // ---- End of clearEventListeners() ---- //\n\n    /** Clear a single property event listeners\n     * @param {string} prop The property of uibuilder for which we want to clear the event listener\n     */\n    // clearListener(prop) {\n    //     if (this.#events[prop]) delete this.#events[prop]\n    // }\n\n    //#endregion ---------- End of event handling system ---------- //\n\n    //#region ------- General Utility Functions -------- //\n\n    /** Check supplied msg from server for a timestamp - if received, work out & store difference to browser time\n     * @param {object} receivedMsg A message object recieved from Node-RED\n     * @returns {void} Updates self.serverTimeOffset if different to previous value\n     */\n    _checkTimestamp(receivedMsg) {\n        if (Object.prototype.hasOwnProperty.call(receivedMsg, 'serverTimestamp')) {\n            const serverTimestamp = new Date(receivedMsg.serverTimestamp)\n            // @ts-ignore\n            const offset = Math.round(((new Date()) - serverTimestamp) / 3600000) // in ms /3.6m to get hours\n            if (offset !== this.serverTimeOffset) {\n                log('trace', `Uib:checkTimestamp:${this._ioChannels.server} (server)`, `Offset changed to: ${offset} from: ${this.serverTimeOffset}`)()\n                this.set('serverTimeOffset', offset)\n            }\n        }\n    }\n\n    /** Set the default originator. Set to '' to ignore. Used with uib-sender.\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    setOriginator(originator = '') {\n        this.set('originator', originator)\n    } // ---- End of setOriginator ---- //\n\n    /** HTTP Ping/Keep-alive - makes a call back to uibuilder's ExpressJS server and receives a 204 response\n     * Can be used to keep sessions alive.\n     * @example\n     *   uibuilder.setPing(2000) // repeat every 2 sec. Re-issue with ping(0) to turn off repeat.\n     *   uibuilder.onChange('ping', function(data) {\n     *      console.log('pinger', data)\n     *   })\n     * @param {number} ms Repeat interval in ms\n     */\n    setPing(ms = 0) {\n        const oReq = new XMLHttpRequest()\n        oReq.addEventListener('load', () => {\n            const headers = (oReq.getAllResponseHeaders()).split('\\r\\n')\n            const elapsedTime = Number(new Date()) - Number((oReq.responseURL.split('='))[1])\n            this.set('ping', {\n                success: !!((oReq.status === 201) || (oReq.status === 204)), // true if one of the listed codes else false\n                status: oReq.status,\n                headers: headers,\n                url: oReq.responseURL,\n                elapsedTime: elapsedTime,\n            })\n        })\n\n        if (this.#pingInterval) {\n            clearInterval(this.#pingInterval)\n            this.#pingInterval = undefined\n        }\n\n        oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n        oReq.send()\n\n        if (ms > 0) {\n            this.#pingInterval = setInterval(() => {\n                oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n                oReq.send()\n            }, ms)\n        }\n    } // ---- End of ping ---- //\n\n    log() {\n        log(...arguments)()\n    }\n\n    /** Convert JSON to Syntax Highlighted HTML\n     * @param {object} json A JSON/JavaScript Object\n     * @returns {html} Object reformatted as highlighted HTML\n     */\n    syntaxHighlight(json) {\n        return syntaxHighlight(json)\n    } // --- End of syntaxHighlight --- //\n\n    /** Copies a uibuilder variable to the browser clipboard\n     * @param {string} varToCopy The name of the uibuilder variable to copy to the clipboard\n     */\n    copyToClipboard(varToCopy) {\n        let data = ''\n        try {\n            data = JSON.stringify(this.get(varToCopy))\n        } catch (e) {\n            log('error', 'copyToClipboard', `Could not copy \"${varToCopy}\" to clipboard.`, e.message)()\n        }\n        navigator.clipboard.writeText(data)\n    } // --- End of copyToClipboard --- //\n\n    /** DEPRECATED FOR NOW - wasn't working properly.\n     * Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.\n     * Requires IntersectionObserver (available to all mainstream browsers from early 2019)\n     * Automatically sends a msg back to Node-RED.\n     * Requires the element to already exist.\n     * @returns {false} False if not visible\n     */\n    elementIsVisible() {\n        const info = 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'\n        log('error', 'uib:elementIsVisible', info)()\n        this.send({ payload: 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex' })\n        return false\n    } // --- End of elementIsVisible --- //\n\n    /** Does the chosen CSS Selector currently exist?\n     * Automatically sends a msg back to Node-RED unless turned off.\n     * @param {string} cssSelector Required. CSS Selector to examine for visibility\n     * @param {boolean} [msg] Optional, default=true. If true also sends a message back to Node-RED\n     * @returns {boolean} True if the element exists\n     */\n    elementExists(cssSelector, msg = true) {\n        const el = document.querySelector(cssSelector)\n\n        let exists = false\n        if (el !== null) exists = true\n\n        if (msg === true) {\n            this.send({\n                payload: exists,\n                info: `Element \"${cssSelector}\" ${exists ? 'exists' : 'does not exist'}`\n            })\n        }\n\n        return exists\n    } // --- End of elementExists --- //\n\n    /** Only keep the URL Hash & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return '#' + url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Set up an event listener to watch for hash changes\n     * and set the watchable urlHash variable\n     */\n    _watchHashChanges() {\n        this.set('urlHash', location.hash)\n        window.addEventListener('hashchange', (event) => {\n            this.set('urlHash', location.hash)\n            if (this.#sendUrlHash === true) {\n                this.send({ topic: 'hashChange', payload: location.hash, newHash: this.keepHashFromUrl(event.newURL), oldHash: this.keepHashFromUrl(event.oldURL) })\n            }\n        })\n    }\n\n    /** Returns true/false or a default value for truthy/falsy and other values\n     * @param {string|number|boolean|*} val The value to test\n     * @param {any} deflt Default value to use if the value is not truthy/falsy\n     * @returns {boolean|any} The truth! Or the default\n     */\n    truthy(val, deflt) {\n        let ret\n        if (['on', 'On', 'ON', 'true', 'True', 'TRUE', '1', true, 1].includes(val)) ret = true\n        else if (['off', 'Off', 'OFF', 'false', 'False', 'FALSE', '0', false, 0].includes(val)) ret = false\n        else ret = deflt\n        return ret\n    }\n\n    /** Turn on/off/toggle sending URL hash changes back to Node-RED\n     * @param {string|number|boolean|undefined} [toggle] Optional on/off/etc\n     * @returns {boolean} True if we will send a msg to Node-RED on a hash change\n     */\n    watchUrlHash(toggle) {\n        this.#sendUrlHash = this.truthy(toggle, this.#sendUrlHash !== true)\n        return this.#sendUrlHash\n    }\n\n    /** Navigate to a new page or a new route (hash)\n     * @param {string} url URL to navigate to. Can be absolute or relative (to current page) or just a hash for a route change\n     * @returns {Location} The new window.location string\n     */\n    navigate(url) {\n        if (url) window.location.href = url\n        return window.location\n    }\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- UI handlers --------- //\n\n    //#region -- Direct to _ui --\n    // ! NOTE: Direct assignments change the target `this` to here. Use with caution\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {HTMLElement|null} Selected HTML element or null\n     */\n    $ = _ui.$\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {string} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {HTMLElement[]} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$ = _ui.$$\n\n    /** Reference to the full ui library */\n    $ui = _ui\n\n    /** Add 1 or several class names to an element\n     * @param {string|string[]} classNames Single or array of classnames\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    addClass = _ui.addClass\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        return _ui.convertMarkdown\n    }\n\n    /** ASYNC: Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     */\n    async include(url, uiOptions) {\n        await _ui.include(url, uiOptions)\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        _ui.loadScriptSrc(url)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        _ui.loadStyleSrc(url)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        _ui.loadScriptTxt(textFn)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        _ui.loadStyleTxt(textFn)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        _ui.loadui(url)\n    }\n\n    /** Remove All, 1 or more class names from an element\n     * @param {undefined|null|\"\"|string|string[]} classNames Single or array of classnames. If undefined, \"\" or null, remove all classes\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    removeClass = _ui.removeClass\n\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        _ui.replaceSlot(el, component)\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        _ui.replaceSlotMarkdown(el, component)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        return _ui.sanitiseHTML(html)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) {\n        _ui.showDialog(type, ui, msg)\n    }\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        _ui.ui(json)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        return _ui.uiGet(cssSelector, propName)\n    }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} component Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, component) {\n        _ui.uiEnhanceElement(el, component)\n    }\n\n    //#endregion -- direct to _ui --\n\n    /** * Show/hide a display card on the end of the visible HTML that will dynamically display the last incoming msg from Node-RED\n     * The card has the id `uib_last_msg`. Updates are done from a listener set up in the start function.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showMsg(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowMsg\n        this.#isShowMsg = showHide\n        let slot = 'Waiting for a message from Node-RED'\n\n        if (this.msg && Object.keys(this.msg).length > 0) {\n            slot = this.syntaxHighlight(this.msg)\n        }\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_last_msg_wrap',\n                ],\n            })\n        } else {\n            _ui._uiReplace({\n                components: [\n                    {\n                        type: 'div',\n                        id: 'uib_last_msg_wrap',\n                        parent: parent,\n                        attributes: {\n                            title: 'Last message from Node-RED',\n                        },\n                        components: [\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.copyToClipboard(\"msg\")',\n                                    class: 'compact',\n                                    style: 'right:3em;',\n                                },\n                                slot: '\uD83D\uDCCB',\n                            },\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.showMsg()',\n                                    class: 'compact',\n                                    style: 'right:.5em;',\n                                },\n                                slot: '\u26D4',\n                            },\n                            {\n                                type: 'pre',\n                                id: 'uib_last_msg',\n                                // parent: 'uib_last_msg_wrap',\n                                attributes: {\n                                    class: 'syntax-highlight',\n                                },\n                                slot: slot,\n                            },\n                        ],\n                    },\n                ],\n            })\n        }\n\n        return showHide\n    }\n\n    /** Show a browser notification if possible.\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * @example uibuilder.notify( 'My simple message to the user' )\n     * @example uibuilder.notify( {topic: 'My Title', payload: 'My simple message to the user'} )\n     * @example uibuilder.notify( {title: 'My Title', body: 'My simple message to the user'} )\n     * @example // If config.return = true, a promise is returned.\n     * // The resolved promise is only returned if the notification is clicked by the user.\n     * // Can be used to send the response back to Node-RED\n     * uibuilder.notify(notifyConfig).then( res => uibuilder.eventSend(res) )\n     * @ref https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config data or simple message string\n     * @returns {Promise<Event>|null} A promise that resolves to the click event or null\n     */\n    notify(config) {\n        if (config.return) return _ui.notification(config)\n\n        _ui.notification(config)\n            .then( res => { // eslint-disable-line promise/always-return\n                log('info', 'Uib:notification', 'Notification completed event', res)()\n                // if (config.return) return res\n            })\n            .catch( err => {\n                log('error', 'Uib:notification', 'Notification error event', err)()\n            })\n        return null\n    }\n\n    /** Scroll the page\n     * https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollIntoView\n     * @param {string} [cssSelector] Optional. If not set, scrolls to top of page.\n     * @param {{block:(string|undefined),inline:(string|undefined),behavior:(string|undefined)}} [opts] Optional. DOM scrollIntoView options\n     * @returns {boolean} True if element was found, false otherwise\n     */\n    scrollTo(cssSelector, opts) {\n        // @ts-ignore\n        if (!opts) opts = {}\n        if (!cssSelector || cssSelector === 'top'  || cssSelector === 'start') cssSelector = 'body'\n        else if (cssSelector === 'bottom' || cssSelector === 'end') {\n            cssSelector = 'body'\n            opts.block = 'end'\n        }\n        const el = this.$(cssSelector)\n        if (el) {\n            el.scrollIntoView(opts)\n            return true\n        }\n        return false\n    }\n\n    /** Show/hide a display card on the end of the visible HTML that will dynamically display the current status of the uibuilder client\n     * The card has the id `uib_status`.\n     * The display is updated by an event listener created in the class constructor.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showStatus(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowStatus\n        this.#isShowStatus = showHide\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_status',\n                ],\n            })\n            return showHide\n        }\n\n        const root = {\n            components: [\n                {\n                    type: 'div',\n                    id: 'uib_status',\n                    parent: parent,\n                    attributes: {\n                        title: 'Current status of the uibuilder client',\n                        class: 'text-smaller',\n                    },\n                    components: [\n                        {\n                            'type': 'table',\n                            'components': [\n                                {\n                                    'type': 'tbody',\n                                    'components': []\n                                }\n                            ]\n                        }\n                    ]\n                }\n            ]\n        }\n        const details = root.components[0].components[0].components[0].components\n\n        Object.values(this.#showStatus).forEach( entry => {\n            details.push({\n                'type': 'tr',\n                'attributes': {\n                    title: entry.description,\n                },\n                'components': [\n                    {\n                        'type': 'th',\n                        'slot': entry.label,\n                    },\n                    {\n                        'type': 'td',\n                        'attributes': {\n                            'data-varType': entry.var,\n                        },\n                        'slot': entry.var === 'version' ? Uib._meta.version : JSON.stringify(this[entry.var]),\n                    }\n                ],\n            })\n        })\n\n        _ui._uiReplace(root)\n\n        return showHide\n    }\n\n    /** Use the Mutation Observer browser API to watch for changes to a single element on the page.\n     * OMG! It is sooo hard to turn the data into something that successfully serialises so it can be sent back to Node-RED!\n     * NB: Each cssSelector creates a unique watcher. Sending the same selector overwrites the previous one.\n     * @param {string} cssSelector A CSS Selector that selects the element to watch for changes\n     * @param {boolean|\"toggle\"} [startStop] true=start watching the DOM, false=stop. Default='toggle'\n     * @param {boolean} [send] true=Send changes to Node-RED, false=Don't send. Default=true\n     * @param {boolean} [showLog] true=Output changes to log, false=stop. Default=true. Log level is 2 (Info)\n     * @returns {boolean} True if the watch is on, false otherwise\n     */\n    uiWatch(cssSelector, startStop = 'toggle', send = true, showLog = true) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.querySelector(cssSelector)\n        if (!targetNode) {\n            log('warn', 'uibuilder.module.js:uiWatch', `CSS Selector '${cssSelector}' not found.`)()\n            return false\n        }\n\n        if (startStop === 'toggle' || startStop === undefined || startStop === null) {\n            if (this.#uiObservers[cssSelector]) startStop = false\n            else startStop = true\n        }\n\n        // Need a ref to the Uib this\n        const that = this\n\n        if (startStop === true) {\n            // Create an observer instance\n            this.#uiObservers[cssSelector] = new MutationObserver( function( mutationList /* , observer */ ) {\n                const out = []\n\n                mutationList.forEach( mu => {\n                    // console.log({ mu })\n                    const oMu = {\n                        type: mu.type,\n                        oldValue: mu.oldValue !== null ? mu.oldValue : undefined,\n                    }\n\n                    if (mu.addedNodes.length > 0) {\n                        oMu.addedNodes = []\n                        mu.addedNodes.forEach( (an, i) => {\n                            oMu.addedNodes.push(_ui.nodeGet(mu.addedNodes[i]))\n                        })\n                    }\n\n                    if (mu.removedNodes.length > 0) {\n                        oMu.removedNodes = []\n                        mu.removedNodes.forEach( (an, i) => {\n                            oMu.removedNodes.push(_ui.nodeGet(mu.removedNodes[i]))\n                        })\n                    }\n\n                    if ( mu.type === 'attributes' ) {\n                        oMu.attributeName = mu.attributeName\n                        // @ts-ignore\n                        oMu.newValue = mu.target.attributes[mu.attributeName].value\n                    }\n\n                    out.push(oMu)\n                })\n\n                // Custom event\n                that._dispatchCustomEvent('uibuilder:domChange', out)\n                // Send a msg back to node-red\n                if (send === true) {\n                    that.send({\n                        _ui: {\n                            cssSelector: cssSelector,\n                            uiChanges: out\n                        },\n                        topic: that.topic || `DOM Changes for '${cssSelector}'`,\n                    })\n                }\n                // Log to info\n                if (showLog === true) {\n                    log('info', 'uibuilder.module.js:uiWatch', `DOM Changes for '${cssSelector}'`, { uiChanges: out }, { mutationList })()\n                }\n            } )\n\n            // Start observing the target node for configured mutations\n            this.#uiObservers[cssSelector].observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:uiWatch', `Started Watching DOM changes for '${cssSelector}'`)()\n        } else {\n            this.#uiObservers[cssSelector].disconnect()\n            delete this.#uiObservers[cssSelector]\n            log('trace', 'uibuilder.module.js:uiWatch', `Stopped Watching DOM changes for '${cssSelector}'`)()\n        }\n\n        return startStop\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- HTML cache and DOM watch --------- //\n\n    /** Clear the saved DOM from localStorage */\n    clearHtmlCache() {\n        this.removeStore('htmlCache')\n        log('trace', 'uibuilder.module.js:clearHtmlCache', 'HTML cache cleared')()\n    }\n\n    /** Restore the complete DOM (the whole web page) from browser localStorage if available */\n    restoreHtmlFromCache() {\n        // Is the html cached? If so, restore it\n        const htmlCache = this.getStore('htmlCache')\n        if (htmlCache) {\n            const targetNode = document.getElementsByTagName('html')[0]\n            // Restore the entire HTML\n            targetNode.innerHTML = htmlCache\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'Restored HTML from cache')()\n        } else {\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'No cache to restore')()\n        }\n    }\n\n    /** Save the current DOM state to browser localStorage.\n     * localStorage is persistent and so can be recovered even after a browser restart.\n     */\n    saveHtmlCache() {\n        // Save the updated entire HTML in localStorage\n        this.setStore('htmlCache', document.documentElement.innerHTML)\n    }\n\n    /** Use the Mutation Observer browser API to watch for and save changes to the HTML\n     * Once the observer is created, it will be reused.\n     * Sending true or undefined will turn on the observer, false turns it off.\n     * saveHtmlCache is called whenever anything changes in the dom. This allows\n     * users to call restoreHtmlFromCache() on page load if desired to completely reload\n     * to the last saved state.\n     * @param {boolean} startStop true=start watching the DOM, false=stop\n     */\n    watchDom(startStop) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.documentElement\n\n        // Need a ref to the Uib this\n        const that = this\n\n        // Create an observer instance\n        if (!this._htmlObserver) {\n            this._htmlObserver = new MutationObserver( function(/* mutationList, observer */) {\n                // We don't need to know the details - so kill off any outstanding mutation records\n                this.takeRecords()\n                // Save the updated entire HTML in localStorage\n                that.saveHtmlCache()\n            } )\n        }\n\n        if (startStop === true || startStop === undefined) {\n            // Start observing the target node for configured mutations\n            this._htmlObserver.observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:watchDom', 'Started Watching and saving DOM changes')()\n        } else {\n            this._htmlObserver.disconnect()\n            log('trace', 'uibuilder.module.js:watchDom', 'Stopped Watching and saving DOM changes')()\n        }\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- Message Handling (To/From Node-RED) -------- //\n\n    /** Handles original control msgs (not to be confused with \"new\" msg._uib controls)\n     * @param {*} receivedCtrlMsg The msg received on the socket.io control channel\n     */\n    _ctrlMsgFromServer(receivedCtrlMsg) {\n\n        // Make sure that msg is an object & not null\n        if (receivedCtrlMsg === null) {\n            receivedCtrlMsg = {}\n        } else if (typeof receivedCtrlMsg !== 'object') {\n            const msg = {}\n            msg['uibuilderCtrl:' + this._ioChannels.control] = receivedCtrlMsg\n            receivedCtrlMsg = msg\n        }\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedCtrlMsg)\n\n        this.set('ctrlMsg', receivedCtrlMsg)\n        this.set('msgsCtrlReceived', ++this.msgsCtrlReceived)\n\n        log('trace', 'Uib:ioSetup:_ctrlMsgFromServer', `Channel '${this._ioChannels.control}'. Received control msg #${this.msgsCtrlReceived}`, receivedCtrlMsg)()\n\n        /** Process control msg types */\n        switch (receivedCtrlMsg.uibuilderCtrl) {\n            // Node-RED is shutting down\n            case 'shutdown': {\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, '\u274C Received \"shutdown\" from server')()\n                this.set('serverShutdown', undefined)\n                break\n            }\n\n            /** We are connected to the server - 1st msg from server */\n            case 'client connect': {\n                log('trace', `Uib:ioSetup:${this._ioChannels.control}`, 'Received \"client connect\" from server')()\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, `\u2705 Server connected. Version: ${receivedCtrlMsg.version}\\nServer time: ${receivedCtrlMsg.serverTimestamp}, Sever time offset: ${this.serverTimeOffset} hours`)()\n\n                if ( !Uib._meta.version.startsWith(receivedCtrlMsg.version.split('-')[0]) ) {\n                    log('warn', `Uib:ioSetup:${this._ioChannels.control}`, `Server version (${receivedCtrlMsg.version}) not the same as the client version (${Uib._meta.version})`)()\n                }\n\n                if (this.autoSendReady === true) { // eslint-disable-line no-lonely-if\n                    log('trace', `Uib:ioSetup:${this._ioChannels.control}/client connect`, 'Auto-sending ready-for-content/replay msg to server')\n                    // @since 0.4.8c Add cacheControl property for use with node-red-contrib-infocache\n                    // @since 6.1.0 Don't bother, we use the \"client connect\" msg\n                    // this._send({\n                    //     'uibuilderCtrl': 'ready for content',\n                    //     'cacheControl': 'REPLAY',\n                    // }, this._ioChannels.control)\n                }\n\n                break\n            }\n\n            default: {\n                log('trace', `uibuilderfe:ioSetup:${this._ioChannels.control}`, `Received ${receivedCtrlMsg.uibuilderCtrl} from server`)\n                // Anything else to do for other control msgs?\n            }\n        } // ---- End of process control msg types ---- //\n    } // -- End of websocket receive CONTROL msg from Node-RED -- //\n\n    /** Do we want to process something? Check pageName, clientId, tabId. Defaults to yes.\n     * @param {*} obj Either a msg._ui or msg._uib object to check\n     * @returns {boolean} True if we should process the inbound _ui/_uib msg, false if not.\n     */\n    _forThis(obj) {\n        let r = true\n\n        // Is this msg for this pageName?\n        if (obj.pageName && obj.pageName !== this.pageName) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this page')()\n            r = false\n        }\n\n        // Is this msg for this clientId?\n        if (obj.clientId && obj.clientId !== this.clientId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this clientId')()\n            r = false\n        }\n\n        // Is this msg for this tabId?\n        if (obj.tabId && obj.tabId !== this.tabId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this tabId')()\n            r = false\n        }\n\n        return r\n    }\n\n    // Handle received messages - Process some msgs internally, emit specific events on document that make it easy for coders to use\n    _msgRcvdEvents(msg) {\n        // Message received\n        this._dispatchCustomEvent('uibuilder:stdMsgReceived', msg)\n\n        // Topic\n        if ( msg.topic ) this._dispatchCustomEvent(`uibuilder:msg:topic:${msg.topic}`, msg)\n\n        // Handle msg._uib special requests\n        if (msg._uib) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._uib)) return\n\n            /** Process a client reload request from Node-RED - as the page is reloaded, everything else is ignored\n             * Note that msg._ui.reload is also actioned via the _ui processing below */\n            if (msg._uib.reload === true) {\n                log('trace', 'Uib:_msgRcvdEvents:_uib:reload', 'reloading')()\n                location.reload()\n                return\n            }\n\n            // Process msg._uib.command messages - allows Node-RED to run uibuilder FE functions\n            if (msg._uib.command) {\n                this._uibCommand(msg)\n                return\n            }\n\n            // Better to request via msg._ui - these are for backwards compatibility\n            if ( msg._uib.componentRef === 'globalNotification' ) {\n                _ui.showDialog('notify', msg._uib.options, msg)\n            }\n            if ( msg._uib.componentRef === 'globalAlert' ) {\n                _ui.showDialog('alert', msg._uib.options, msg)\n            }\n        }\n\n        // Handle msg._ui requests\n        if ( msg._ui ) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._ui)) return\n\n            log('trace', 'Uib:_msgRcvdEvents:_ui', 'Calling _uiManager')()\n            this._dispatchCustomEvent('uibuilder:msg:_ui', msg)\n            _ui._uiManager(msg)\n        }\n    } // --- end of _msgRcvdEvents ---\n\n    /** Internal send fn. Send a standard or control msg back to Node-RED via Socket.IO\n     * NR will generally expect the msg to contain a payload topic\n     * @param {object} msgToSend The msg object to send.\n     * @param {string} [channel=uiBuilderClient] The Socket.IO channel to use, must be in self.ioChannels or it will be ignored\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    _send(msgToSend, channel, originator = '') {\n        if (channel === null || channel === undefined) channel = this._ioChannels.client\n\n        // Make sure msgToSend is an object\n        if (channel === this._ioChannels.client) {\n            msgToSend = makeMeAnObject(msgToSend, 'payload')\n        } else if (channel === this._ioChannels.control) {\n            msgToSend = makeMeAnObject(msgToSend, 'uibuilderCtrl')\n            if (!Object.prototype.hasOwnProperty.call(msgToSend, 'uibuilderCtrl')) {\n                msgToSend.uibuilderCtrl = 'manual send'\n            }\n            // help remember where this came from as ctrl msgs can come from server or client\n            msgToSend.from = 'client'\n        }\n\n        /** since 2020-01-02 Added _socketId which should be the same as the _socketId on the server */\n        msgToSend._socketId = this._socket.id\n\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n\n        // Add the originator metadata if required\n        if (originator === '' && this.originator !== '') originator = this.originator\n        if (originator !== '') Object.assign(msgToSend, { '_uib': { 'originator': originator } })\n\n        // If the msg does not have a topic - see if we want to add one\n        if ( !Object.prototype.hasOwnProperty.call(msgToSend, 'topic') ) {\n            // From the default (`uibuilder.set('topic', 'some topic')`)\n            if (this.topic !== undefined && this.topic !== '') msgToSend.topic = this.topic\n            else {\n                // Did the last inbound msg have a topic?\n                if ( Object.prototype.hasOwnProperty.call(this, 'msg') && Object.prototype.hasOwnProperty.call(this.msg, 'topic') ) {\n                    msgToSend.topic = this.msg.topic\n                }\n            }\n        }\n\n        // If a standard send & _ui property exists, make sure to add _ui.from = 'client'\n        if (msgToSend._ui) msgToSend._ui.from = 'client'\n\n        // Track how many messages have been sent & last msg sent\n        let numMsgs\n        if (channel === this._ioChannels.client) {\n            this.set('sentMsg', msgToSend)\n            numMsgs = this.set('msgsSent', ++this.msgsSent)\n        } else if (channel === this._ioChannels.control) {\n            this.set('sentCtrlMsg', msgToSend)\n            numMsgs = this.set('msgsSentCtrl', ++this.msgsSentCtrl)\n        }\n        log('trace', 'Uib:_send', ` Channel '${channel}'. Sending msg #${numMsgs}`, msgToSend)()\n\n        this._socket.emit(channel, msgToSend)\n    } // --- End of Send Msg Fn --- //\n\n    /** Callback handler for messages from Node-RED\n     * NOTE: `this` is the class here rather the `socket` as would be normal since we bind the correct `this` in the call.\n     *       Use this._socket if needing reference to the socket.\n     * @callback ioSetupFromServer Called from ioSetup/this._socket.on(this.#ioChannels.server, this.stdMsgFromServer.bind(this))\n     * @param {object} receivedMsg The msg object from Node-RED\n     * @this Uib\n     */\n    _stdMsgFromServer(receivedMsg) {\n\n        // Make sure that msg is an object & not null\n        receivedMsg = makeMeAnObject(receivedMsg, 'payload')\n\n        // Don't process if the inbound msg is not for us\n        if (receivedMsg._uib && !this._forThis(receivedMsg._uib)) return\n        if (receivedMsg._ui && !this._forThis(receivedMsg._ui)) return\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedMsg)\n\n        // Track how many messages have been received\n        this.set('msgsReceived', ++this.msgsReceived)\n\n        // Emit specific document events on msg receipt that make it easy for coders to use\n        this._msgRcvdEvents(receivedMsg)\n\n        if ( !('_ui' in receivedMsg && !('payload' in receivedMsg)) ) {\n            // Save the msg for further processing\n            this.set('msg', receivedMsg)\n        }\n\n        log('info', 'Uib:ioSetup:stdMsgFromServer', `Channel '${this._ioChannels.server}'. Received msg #${this.msgsReceived}.`, receivedMsg)()\n\n        // ! NOTE: Don't try to handle specialist messages here. See _msgRcvdEvents.\n    } // -- End of websocket receive DATA msg from Node-RED -- //\n\n    /** Process msg._uib.command - Remember to update #extCommands with new allowed commands\n     * @param {object} msg Msg from Node-RED containing a msg._uib object\n     */\n    _uibCommand(msg) {\n        if (!msg._uib || !msg._uib.command) {\n            log('error', 'uibuilder:_uibCommand', 'Invalid command message received', { msg })()\n            msg.payload = msg.error = 'Invalid command message received'\n            this.send(msg)\n            return\n        }\n        const cmd = msg._uib.command\n        // Disallowed command request outputs error and ignores the msg (NB: Case must match)\n        if (!this.#extCommands.includes(cmd.trim())) {\n            log('error', 'Uib:_uibCommand', `Command '${cmd} is not allowed to be called externally`)()\n            return\n        }\n        const prop = msg._uib.prop\n        const value = msg._uib.value\n        const quiet = msg._uib.quiet ?? false\n        let response, info\n\n        // Don't forget to update `#extCommands`, `docs/client-docs/control-from-node-red.md` & `functions.md`\n        switch (cmd) {\n            case 'elementIsVisible': {\n                response = this.elementIsVisible(prop)\n                // info = `Element \"${prop}\" ${response ? 'is visible' : 'is not visible'}`\n                break\n            }\n\n            case 'elementExists': {\n                response = this.elementExists(prop, false)\n                info = `Element \"${prop}\" ${response ? 'exists' : 'does not exist'}`\n                break\n            }\n\n            case 'get': {\n                response = this.get(prop)\n                break\n            }\n\n            case 'getManagedVarList': {\n                if (prop === 'full') response = this.getManagedVarList()\n                else response = Object.values(this.getManagedVarList())\n                break\n            }\n\n            case 'getWatchedVars': {\n                if (prop === 'full') response = this.getWatchedVars()\n                else response = Object.values(this.getWatchedVars())\n                break\n            }\n\n            case 'htmlSend': {\n                response = this.htmlSend('', false)\n                break\n            }\n\n            case 'include': {\n                // include is async\n                response = _ui.include(prop, value)\n                break\n            }\n\n            case 'navigate': {\n                let newUrl\n                if (prop) newUrl = prop\n                else if (value) newUrl = value\n                response = this.navigate(newUrl)\n                break\n            }\n\n            case 'scrollTo': {\n                response = this.scrollTo(prop, value)\n                break\n            }\n\n            case 'set': {\n                let store = false\n                let autoload = false\n                if (msg._uib.options && msg._uib.options.store) {\n                    if (msg._uib.options.store === true) store = true\n                    if (msg._uib.options.autoload === true) autoload = true\n                }\n                response = this.set(prop, value, store, autoload)\n                break\n            }\n\n            case 'showMsg': {\n                response = this.showMsg(value, prop)\n                break\n            }\n\n            case 'showStatus': {\n                response = this.showStatus(value, prop)\n                break\n            }\n\n            case 'uiGet': {\n                response = _ui.uiGet(prop, value)\n                break\n            }\n\n            case 'uiWatch': {\n                response = this.uiWatch(prop)\n                break\n            }\n\n            case 'watchUrlHash': {\n                response = this.watchUrlHash(prop)\n                break\n            }\n\n            default: {\n                log('warning', 'Uib:_uibCommand', `Command '${cmd}' not yet implemented`)()\n                break\n            }\n        }\n\n        if (quiet !== true) {\n            if (response === undefined) {\n                response = `'${prop}' is undefined`\n            }\n            if (Object(response).constructor === Promise) {\n                // response = `'${cmd} ${prop}' submitted. Cmd is async, no response available`\n                response\n                    .then( (/** @type {any} */ data) => {\n                        msg.payload = msg._uib.response = data\n                        msg.info = msg._uib.info = info\n                        if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                        this.send(msg)\n                        return true\n                    })\n                    .catch( err => {\n                        log(0, 'Uib:_uibCommand', 'Error: ', err)()\n                    })\n            } else {\n                msg.payload = msg._uib.response = response\n                msg.info = msg._uib.info = info\n                if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                this.send(msg)\n            }\n        }\n    } // --- end of _uibCommand ---\n\n    /** Send log text to uibuilder's beacon endpoint (works even if socket.io not connected)\n     * @param {string} txtToSend Text string to send\n     * @param {string|undefined} logLevel Log level to use. If not supplied, will default to debug\n     */\n    beaconLog(txtToSend, logLevel) {\n        if (!logLevel) logLevel = 'debug'\n        navigator.sendBeacon('./_clientLog', `${logLevel}::${txtToSend}`)\n    }\n\n    /** Easily send the entire DOM/HTML msg back to Node-RED\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     * @param {boolean} [send] If true (default) directly send response to Node-RED. Is false when calling from Node-RED as a command.\n     * @returns {string} The HTML as a string\n     */\n    htmlSend(originator = '', send = true) {\n        const out = `<!doctype html>\\n${document.documentElement.outerHTML}`\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            payload: out,\n            length: out.length,\n            topic: this.topic,\n        }\n\n        log('trace', 'Uib:htmlSend', 'Sending full HTML to Node-RED', msg)()\n\n        if (send === true) this._send(msg, this._ioChannels.client, originator)\n        return out\n    }\n\n    /** Send log info back to Node-RED over uibuilder's websocket control output (Port #2)\n     * @param {...*} arguments All arguments passed to the function are added to the msg.payload\n     */\n    logToServer() {\n        this.sendCtrl({\n            uibuilderCtrl: 'client log message',\n            payload: arguments,\n            // \"version\":\"6.1.0-iife.min\",\n            _socketId: this._socket.id,\n            // \"ip\":\"::1\",\n            clientId: this.clientId,\n            tabId: this.tabId,\n            // \"url\":\"esp-test\",\n            pageName: this.pageName,\n            connections: this.connectedNum,\n            lastNavType: this.lastNavType,\n        })\n    }\n\n    /** Easily send a msg back to Node-RED on a DOM event\n     * @example In plain HTML/JavaScript\n     *    `<button id=\"button1\" name=\"button 1\" data-fred=\"jim\"></button>`\n     *    $('#button1').onclick = (evt) => {\n     *      uibuilder.eventSend(evt)\n     *    }\n     * @example\n     * In VueJS: `<b-button id=\"myButton1\" @click=\"doEvent\" data-something=\"hello\"></b-button>`\n     * In VueJS methods: `doEvent: uibuilder.eventSend,`\n     *\n     * All `data-` attributes will be passed back to Node-RED,\n     *    use them instead of arguments in the click function.\n     *    All target._ui custom properties are also passed back to Node-RED.\n     *\n     * @param {MouseEvent|any} domevent DOM Event object\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    eventSend(domevent, originator = '') { // eslint-disable-line sonarjs/cognitive-complexity\n        // @ts-ignore Handle case where vue messes up `this`\n        if ( this.$attrs ) {\n            log('error', 'Uib:eventSend', '`this` has been usurped by VueJS. Make sure that you wrap the call in a function: `doEvent: function (event) { uibuilder.eventSend(event) },`' )()\n            return\n        }\n        if (!domevent && !event) {\n            log('warn', 'Uib:eventSend', 'Neither the domevent nor the hidden event properties are set. You probably called this function directly rather than applying to an on click event.' )()\n            return\n        }\n        // Handle no argument, e.g. <button onClick=\"uibuilder.eventSend()\"> - event is a hidden variable when fn used in addEventListener\n        if (!domevent || !domevent.constructor) domevent = event\n\n        // The argument must be a DOM event\n        if ((!domevent.constructor.name.endsWith('Event')) || (!domevent.currentTarget)) {\n            log('warn', 'Uib:eventSend', `ARGUMENT NOT A DOM EVENT - use data attributes not function arguments to pass data. Arg Type: ${domevent.constructor.name}`, domevent)()\n            return\n        }\n\n        // Prevent default event action\n        domevent.preventDefault()\n\n        // The target element\n        const target = domevent.currentTarget\n\n        // Get target properties - only shows custom props not element default ones\n        const props = {}\n        Object.keys(target).forEach( key => {\n            if (key.startsWith('_')) return // Exclude private\n            props[key] = target[key]\n        })\n\n        // Attempt to get target attributs - can fail for certain target types\n        const ignoreAttribs = ['class', 'id', 'name']\n        let attribs\n        try {\n            attribs = Object.assign({},\n                ...Array.from(target.attributes,\n                    ( { name, value } ) => {\n                        if ( !ignoreAttribs.includes(name) ) {\n                            return ({ [name]: value })\n                        }\n                        return undefined\n                    }\n                )\n            )\n        } catch (e) {}\n\n        // If target embedded in a form, include the form data\n        let form\n        const frmVals = []\n        if ( target.form ) {\n            form = {}\n            form.valid = target.form.checkValidity()\n            Object.values(target.form).forEach( (frmEl, i) => {\n                const id = frmEl.id !== '' ? frmEl.id : (frmEl.name !== '' ? frmEl.name : `${i}-${frmEl.type}`)\n\n                // We must have both an element id (we may have forced one above) AND\n                // the element type MUST be not undefined - to allow for the extra properties added by frameworks such as Svelte\n                if (id !== '' && frmEl.type) {\n                    // Stupid HTML doesn't use value attrib for checkboxes. So override if value is set to default\n                    if ('checked' in frmEl && frmEl.value === 'on') frmEl.value = frmEl.checked.toString()\n\n                    frmVals.push( { key: id, val: frmEl.value } ) // simplified for addition to msg.payload\n\n                    form[id] = {\n                        'id': frmEl.id,\n                        'name': frmEl.name,\n                        'value': frmEl.value,\n                        'valid': frmEl.checkValidity(),\n                        'type': frmEl.type,\n                    }\n\n                    if (form[id].valid === false) {\n                        const v = frmEl.validity\n                        form[id].validity = {\n                            badInput: v.badInput === true ? v.badInput : undefined,\n                            customError: v.customError === true ? v.customError : undefined,\n                            patternMismatch: v.patternMismatch === true ? v.patternMismatch : undefined,\n                            rangeOverflow: v.rangeOverflow === true ? v.rangeOverflow : undefined,\n                            rangeUnderflow: v.rangeUnderflow === true ? v.rangeUnderflow : undefined,\n                            stepMismatch: v.stepMismatch === true ? v.stepMismatch : undefined,\n                            tooLong: v.tooLong === true ? v.tooLong : undefined,\n                            tooShort: v.tooShort === true ? v.tooShort : undefined,\n                            typeMismatch: v.typeMismatch === true ? v.typeMismatch : undefined,\n                            valueMissing: v.valueMissing === true ? v.valueMissing : undefined,\n                        }\n                    }\n\n                    if (frmEl.dataset) form[id].data = frmEl.dataset\n                }\n            })\n        }\n\n        // Check for CSS Classes\n        let classes\n        try {\n            classes = Array.from(target.classList)\n        } catch (e) {}\n\n        // Each `data-xxxx` attribute is added as a property\n        let payload = { ...target.dataset }\n\n        // Handle Notification events\n        let nprops\n        if ( Object.prototype.toString.call(target) === '[object Notification]') {\n            // Fixed payload for convenience\n            payload = `notification-${target.userAction}`\n            // Capture the notification properties\n            nprops = {\n                // userAction: target.userAction, // uib custom prop: click, close or error\n                actions: target.actions,\n                badge: target.badge,\n                body: target.body,\n                data: target.data,\n                dir: target.dir,\n                icon: target.icon,\n                image: target.image,\n                lang: target.lang,\n                renotify: target.renotify,\n                requireInteraction: target.requireInteraction,\n                silent: target.silent,\n                tag: target.tag,\n                timestamp: target.timestamp,\n                title: target.title,\n                vibrate: target.vibrate,\n            }\n        }\n        // console.log(Object.prototype.toString.call(target))\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            // - this may be an empty Object if no data attributes defined\n            payload: payload,\n\n            _ui: {\n                type: 'eventSend',\n                id: target.id !== '' ? target.id : undefined,\n                name: target.name !== '' ? target.name : undefined,\n                slotText: target.textContent ? target.textContent.substring(0, 255) : undefined,\n\n                form: form,\n                props: props,\n                attribs: attribs,\n                classes: classes,\n\n                notification: nprops,\n\n                event: domevent.type,\n                altKey: domevent.altKey,\n                ctrlKey: domevent.ctrlKey,\n                shiftKey: domevent.shiftKey,\n                metaKey: domevent.metaKey,\n\n                pointerType: domevent.pointerType,\n                nodeName: target.nodeName,\n\n                clientId: this.clientId,\n                pageName: this.pageName,\n                tabId: this.tabId,\n            }\n        }\n\n        if (frmVals.length > 0) {\n            frmVals.forEach( entry => {\n                msg.payload[entry.key] = entry.val\n            })\n        }\n\n        if (domevent.type === 'change') {\n            // Checkboxes don't have a value!!\n            msg._ui.newValue = msg.payload.value = 'checked' in target ? target.checked : domevent.target.value\n        }\n\n        log('trace', 'Uib:eventSend', 'Sending msg to Node-RED', msg)()\n        if (target.dataset && target.dataset.length === 0) log('warn', 'Uib:eventSend', 'No payload in msg. data-* attributes should be used.')()\n\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Send a standard message to NR\n     * @example uibuilder.send({payload:'Hello'})\n     * @param {object} msg Message to send\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    send(msg, originator = '') {\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Send a control msg to NR\n     * @param {object} msg Message to send\n     */\n    sendCtrl(msg) {\n        this._send(msg, this._ioChannels.control)\n    }\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Socket.IO -------- //\n\n    /** Return the Socket.IO namespace\n     * The cookie method is the most reliable but this falls back to trying to work it\n     * out from the URL if cookies not available. That won't work if page is in a sub-folder.\n     * since 2017-10-21 Improve method to cope with more complex paths - thanks to Steve Rickus @shrickus\n     * since 2017-11-10 v1.0.1 Check cookie first then url. cookie works even if the path is more complex (e.g. sub-folder)\n     * since 2020-01-25 Removed httpRoot from namespace to prevent proxy induced errors\n     * @returns {string} Socket.IO namespace\n     */\n    _getIOnamespace() {\n\n        let ioNamespace\n\n        /** Try getting the namespace cookie. */\n        ioNamespace = this.cookies['uibuilder-namespace']\n\n        // if it wasn't available, try using the current url path\n        if (ioNamespace === undefined || ioNamespace === '') {\n            // split url path & eliminate any blank elements, and trailing or double slashes\n            const u = window.location.pathname.split('/')\n                .filter(function (t) { return t.trim() !== '' })\n\n            /** since v2.0.5 Extra check for 0 length, Issue #73. since 2017-11-06 If the last element of the path is an .html file name, remove it */\n            if (u.length > 0 && (u[u.length - 1].endsWith('.html'))) u.pop()\n\n            // Get the last part of the url path, this MUST match the namespace in uibuilder\n            ioNamespace = u.pop()\n\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via url path: ${ioNamespace}`)()\n        } else {\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via cookie: ${ioNamespace}`)()\n        }\n\n        this.url = ioNamespace\n        // Namespace HAS to start with a /\n        ioNamespace = '/' + ioNamespace\n\n        log('trace', 'uibuilder.module.js:getIOnamespace', `Final Socket.IO namespace: ${ioNamespace}`)()\n\n        return ioNamespace\n    } // --- End of set IO namespace --- //\n\n    /** Function used to check whether Socket.IO is connected to the server, reconnect if not (recursive)\n     * @param {number} [delay] Initial delay before checking (ms). Default=2000ms\n     * @param {number} [factor] Multiplication factor for subsequent checks (delay*factor). Default=1.5\n     * @param {number} [depth] Recursion depth\n     * @returns {boolean|undefined} Whether or not Socket.IO is connected to uibuilder in Node-RED\n     */\n    _checkConnect(delay, factor, depth = 1) {\n        if ( navigator.onLine === false ) return // Don't bother if we know we are offline\n\n        if (!delay) delay = this.retryMs\n        if (!factor) factor = this.retryFactor\n\n        log('trace', 'Uib:checkConnect', `Checking connection. Connected: ${this._socket.connected}. Timer: ${this.#timerid}. Depth: ${depth}. Delay: ${delay}. Factor: ${factor}`, this._socket)()\n\n        // If we are connected ...\n        if (this._socket.connected === true) {\n            // Clear the setTimeout\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this.set('ioConnected', true)\n            this.set('socketError', null)\n            return true\n        }\n\n        // ... we aren't connected so:\n        this.set('ioConnected', false)\n\n        // we only want one running at a time\n        if (this.#timerid) window.clearTimeout(this.#timerid)\n\n        // Create the new timer\n        this.#timerid = window.setTimeout(() => {\n            log('warn', 'Uib:checkConnect:setTimeout', `Socket.IO reconnection attempt. Current delay: ${delay}. Depth: ${depth}`)()\n\n            // this is necessary sometimes when the socket fails to connect on startup\n            this._socket.close()\n\n            // Try to reconnect\n            this._socket.connect()\n\n            // don't need to check whether we have connected as the timer will have been cleared if we have\n            this.#timerid = null\n\n            // @ts-ignore Create new timer for next time round with extended delay\n            this._checkConnect(delay * factor, factor, depth++)\n        }, delay)\n\n        return false\n    } // --- End of checkConnect Fn--- //\n\n    // See message handling section for msg receipt handlers\n\n    /** Called by _ioSetup when Socket.IO connects to Node-RED */\n    _onConnect() {\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n        log('info', 'Uib:ioSetup', `\u2705 SOCKET CONNECTED. Connection count: ${this.connectedNum}, Is a Recovery?: ${this._socket.recovered}. \\nNamespace: ${this.ioNamespace}`)()\n        this._dispatchCustomEvent('uibuilder:socket:connected', { 'numConnections': this.connectedNum, 'isRecovery': this._socket.recovered })\n\n        this._checkConnect() // resets any reconnection timers & sets connected flag\n    }\n\n    /** Called by _ioSetup when Socket.IO disconnects from Node-RED\n     * @param {string} reason Disconnection title\n     */\n    _onDisconnect(reason) {\n        // reason === 'io server disconnect' - redeploy of Node instance\n        // reason === 'transport close' - Node-RED terminating\n        // reason === 'ping timeout' - didn't receive a pong response?\n        log('info', 'Uib:ioSetup:socket-disconnect', `\u26D4 Socket Disconnected. Reason: ${reason}`)()\n\n        this._dispatchCustomEvent('uibuilder:socket:disconnected', reason)\n\n        /** A workaround for SIO's failure to reconnect after a disconnection */\n        this._checkConnect()\n    }\n\n    /** Setup Socket.io\n     * since v2.0.0-beta2 Moved to a function and called by the user (uibuilder.start()) so that namespace & path can be passed manually if needed\n     * @returns {boolean} Attaches socket.io manager to self._socket and updates self.ioNamespace & self.ioPath as needed\n     */\n    _ioSetup() {\n\n        // Just a notification, actual load is done outside the class (see start of file)\n        if (io === undefined) {\n            log('error', 'Uib:ioSetup', 'Socket.IO client not loaded, Node-RED comms will not work')()\n            return false\n        }\n\n        // If socket is already set up, close it and remove all of the listeners\n        if (this._socket) {\n            log('trace', 'Uib:ioSetup', 'Removing listeners in preparation for redoing Socket.IO connections')()\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this._socket.close()\n            this._socket.offAny()\n            this._socket = undefined\n            this.set('ioConnected', false)\n        }\n\n        // Update the URL path to make sure we have the right one\n        this.socketOptions.path = this.ioPath\n\n        // NOTE: this._socket.auth is now set by callback and so automatically updated for each client (re)connection. No need to set here\n\n        // Create the socket - make sure client uses Socket.IO version from the uibuilder module (using path)\n        log('trace', 'Uib:ioSetup', `About to create IO object. Transports: [${this.socketOptions.transports.join(', ')}]`)()\n        this._socket = io(this.ioNamespace, this.socketOptions)\n\n        /** When the socket is connected - set ioConnected flag and reset connect timer  */\n        this._socket.on('connect', this._onConnect.bind(this))\n\n        // RECEIVE a STANDARD, non-control msg from Node-RED server\n        this._socket.on(this._ioChannels.server, this._stdMsgFromServer.bind(this))\n\n        // RECEIVE a CONTROL msg from Node-RED server - see also sendCtrl()\n        this._socket.on(this._ioChannels.control, this._ctrlMsgFromServer.bind(this))\n\n        // When the socket is disconnected ..............\n        this._socket.on('disconnect', this._onDisconnect.bind(this))\n\n        // Socket.io connection error - probably the wrong ioPath - or client is offline\n        this._socket.on('connect_error', (err) => {\n            if ( navigator.onLine === false ) return // Don't bother with an error if we know we are offline\n            log('error', 'Uib:ioSetup:connect_error', `\u274C Socket.IO Connect Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket connect error processing ---\n\n        // Socket.io error - from the server (socket.use middleware triggered an error response)\n        this._socket.on('error', (err) => {\n            log('error', 'Uib:ioSetup:error', `\u274C Socket.IO Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket error processing ---\n\n        // Ensure we are connected, retry if not\n        this._checkConnect()\n\n        return true\n\n        /* We really don't need these, just for interest\n            self._socket.io.on('packet', function onPacket(data){\n                // we get one of these for each REAL msg (not ping/pong)\n                console.debug('PACKET', data)\n            })\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n                //console.dir(self._socket)\n            }) // --- End of socket pong processing ---\n            self._socket.io.on('packet', function(data){\n                // We get one of these for actual messages, not ping/pong\n                console.debug('PACKET', data)\n            })\n            self._socket.on('connect_timeout', function(timeout) {\n                console.debug('SOCKET CONNECT TIMEOUT - Namespace: ' + ioNamespace + ', Timeout: ' + timeout)\n            }) // --- End of socket connect timeout processing ---\n            self._socket.on('reconnect', function(attemptNum) {\n                console.debug('SOCKET RECONNECTED - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect processing ---\n            self._socket.on('reconnect_attempt', function(attemptNum) {\n                console.debug('SOCKET RECONNECT ATTEMPT - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect_attempt processing ---\n            self._socket.on('reconnecting', function(attemptNum) {\n                console.debug('SOCKET RECONNECTING - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnecting processing ---\n            self._socket.on('reconnect_error', function(err) {\n                console.debug('SOCKET RECONNECT ERROR - Namespace: ' + ioNamespace + ', Reason: ' + err.message)\n                //console.dir(err)\n            }) // --- End of socket reconnect_error processing ---\n            self._socket.on('reconnect_failed', function() {\n                console.debug('SOCKET RECONNECT FAILED - Namespace: ' + ioNamespace)\n            }) // --- End of socket reconnect_failed processing ---\n            self._socket.on('ping', function() {\n                console.debug('SOCKET PING')\n            }) // --- End of socket ping processing ---\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n            }) // --- End of socket pong processing ---\n            */\n    } // ---- End of ioSetup ---- //\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Class construction & startup method -------- //\n\n    constructor() {\n        log('trace', 'Uib:constructor', 'Starting')()\n\n        // Track whether the client is online or offline\n        window.addEventListener('offline', (e) => {\n            this.set('online', false)\n            this.set('ioConnected', false)\n            log('warn', 'Browser', 'DISCONNECTED from network')()\n        })\n        window.addEventListener('online', (e) => {\n            this.set('online', true)\n            log('warn', 'Browser', 'Reconnected to network')()\n            this._checkConnect()\n        })\n\n        document.cookie.split(';').forEach((c) => {\n            const splitC = c.split('=')\n            this.cookies[splitC[0].trim()] = splitC[1]\n        })\n\n        /** Client ID set by uibuilder - lasts until browser profile is closed, applies to all tabs */\n        this.set('clientId', this.cookies['uibuilder-client-id'])\n        log('trace', 'Uib:constructor', 'Client ID: ', this.clientId)()\n\n        /** Tab ID - lasts while the tab is open (even if reloaded)\n         * WARNING: Duplicating a tab retains the same tabId\n         */\n        this.set('tabId', window.sessionStorage.getItem('tabId'))\n        if (!this.tabId) {\n            this.set('tabId', `t${Math.floor(Math.random() * 1000000)}`)\n            window.sessionStorage.setItem('tabId', this.tabId)\n        }\n\n        // document.addEventListener('pagehide', (event) => {\n        //     // console.log(`pagehide. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pagehide. From Cache?: ${event.persisted}`)\n        // })\n        // document.addEventListener('pageshow', (event) => {\n        //     // console.log(`pageshow. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pageshow. From Cache?: ${event.persisted}`)\n        // })\n        document.addEventListener('load', () => {\n            this.set('isVisible', true)\n        })\n        document.addEventListener('visibilitychange', () => {\n            // hidden=unload, minimise. visible=un-minimise (not fired on load)\n            this.set('isVisible', document.visibilityState === 'visible')\n            this.sendCtrl({ uibuilderCtrl: 'visibility', isVisible: this.isVisible })\n            // navigator.userActivation is experimental Chromium only\n            // console.log('visibilitychange', ':', `Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n            // navigator.sendBeacon('./_clientLog', `${(new Date()).toISOString()} Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n        })\n\n        // Set a listener to update showStatus table if it is active\n        document.addEventListener('uibuilder:propertyChanged', (event) => {\n            if (!this.#isShowStatus) return\n\n            // @ts-ignore\n            if (event.detail.prop in this.#showStatus) {\n                // @ts-ignore\n                document.querySelector(`td[data-vartype=\"${event.detail.prop}\"]`).innerText = JSON.stringify(event.detail.value)\n            }\n        })\n\n        this.set('ioNamespace', this._getIOnamespace())\n\n        //#region - Try to make sure client uses Socket.IO client version from the uibuilder module (using cookie or path) @since v2.0.0 2019-02-24 allows for httpNodeRoot\n\n        /** httpNodeRoot (to set path) */\n        if ('uibuilder-webRoot' in this.cookies) {\n            this.set('httpNodeRoot', this.cookies['uibuilder-webRoot'])\n            log('trace', 'Uib:constructor', `httpNodeRoot set by cookie to \"${this.httpNodeRoot}\"`)()\n        } else {\n            // split current url path, eliminate any blank elements and trailing or double slashes\n            const fullPath = window.location.pathname.split('/').filter(function (t) { return t.trim() !== '' })\n            /** handle url includes file name - @since v2.0.5 Extra check for 0 length, Issue #73. */\n            if (fullPath.length > 0 && fullPath[fullPath.length - 1].endsWith('.html')) fullPath.pop()\n            fullPath.pop() // gives the last path section of the url\n            this.set('httpNodeRoot', `/${fullPath.join('/')}`)\n            log('trace', '[Uib:constructor]', `httpNodeRoot set by URL parsing to \"${this.httpNodeRoot}\". NOTE: This may fail for pages in sub-folders.`)()\n        }\n        this.set('ioPath', urlJoin(this.httpNodeRoot, Uib._meta.displayName, 'vendor', 'socket.io'))\n        log('trace', 'Uib:constructor', `ioPath: \"${this.ioPath}\"`)()\n\n        //#endregion\n\n        // Work out pageName\n        this.set('pageName', window.location.pathname.replace(`${this.ioNamespace}/`, ''))\n        if ( this.pageName.endsWith('/') ) this.set('pageName', `${this.pageName}index.html`)\n        if ( this.pageName === '' ) this.set('pageName', 'index.html')\n\n        // Attempt to restore autoload variables\n        try {\n            const autoloadVars = this.getStore('_uibAutoloadVars')\n            if (Object.keys(autoloadVars).length > 0) {\n                Object.keys(autoloadVars).forEach( (id) => {\n                    this.set(id, this.getStore(id))\n                })\n            }\n        } catch (e) {}\n\n        this._dispatchCustomEvent('uibuilder:constructorComplete')\n\n        log('trace', 'Uib:constructor', 'Ending')()\n    }\n\n    /** Start up Socket.IO comms and listeners\n     * This has to be done separately because if running from a web page in a sub-folder of src/dist, uibuilder cannot\n     * necessarily work out the correct ioPath to use.\n     * Also, if cookies aren't permitted in the browser, both ioPath and ioNamespace may need to be specified.\n     * @param {object} [options] The start options object.\n     * @returns {void}\n     */\n    start(options) {\n        log('trace', 'Uib:start', 'Starting')()\n\n        // Cancel the msg event handler if already present\n        if ( this.#MsgHandler ) this.cancelChange('msg', this.#MsgHandler)\n\n        if (this.started === true) {\n            log('info', 'Uib:start', 'Start function already called. Resetting Socket.IO and msg handler.')()\n        }\n\n        log('log', 'Uib:start', 'Cookies: ', this.cookies, `\\nClient ID: ${this.clientId}`)()\n        log('trace', 'Uib:start', 'ioNamespace: ', this.ioNamespace, `\\nioPath: ${this.ioPath}`)()\n\n        // Handle options\n        if (options) {\n            if (options.ioNamespace) this.set('ioNamespace', options.ioNamespace)\n            if (options.ioPath) this.set('ioPath', options.ioPath)\n            if (options.nopolling && this.socketOptions.transports[0] === 'polling') this.socketOptions.transports.shift()\n            // See below for handling of options.loadStylesheet\n        }\n\n        // Do we need to load styles?\n        if ( document.styleSheets.length >= 1 || (document.styleSheets.length === 1 && document.styleSheets[0].cssRules.length === 0) ) {\n            log('info', 'Uib:start', 'Styles already loaded so not loading uibuilder default styles.')()\n        } else {\n            if (options && options.loadStylesheet === false) log('info', 'Uib:start', 'No styles loaded & options.loadStylesheet === false.')()\n            else {\n                log('info', 'Uib:start', 'No styles loaded, loading uibuilder default styles.')()\n                this.loadStyleSrc(`${this.httpNodeRoot}/uibuilder/uib-brand.min.css`)\n            }\n        }\n\n        /** Handle specialist messages like reload and _ui -> Moved to _msgRcvdEvents */\n\n        // Track last browser navigation type: navigate, reload, back_forward, prerender\n        // TODO Needs more work - updates on navigation needed?\n        const [entry] = performance.getEntriesByType('navigation')\n        // @ts-ignore\n        this.set('lastNavType', entry.type)\n\n        // Start up (or restart) Socket.IO connections and listeners. Returns false if io not found\n        this.set('started', this._ioSetup())\n\n        if ( this.started === true ) {\n            log('trace', 'Uib:start', 'Start completed. Socket.IO client library loaded.')()\n        } else {\n            log('error', 'Uib:start', 'Start completed. ERROR: Socket.IO client library NOT LOADED.')()\n        }\n\n        // Watch for URL hash changes in case using a front-end router. Updates watched var `urlHash` and socket.io `auth.urlHash`\n        this._watchHashChanges()\n\n        // Check if Vue is present (used for dynamic UI processing)\n        if (window['Vue']) {\n            this.set('isVue', true)\n            try {\n                this.set('vueVersion', window['Vue'].version)\n            } catch (e) { }\n            log('trace', 'Uib:start', `VueJS is loaded. Version: ${this.vueVersion}`)()\n        } else {\n            log('trace', 'Uib:start', 'VueJS is not loaded.')()\n        }\n\n        // Check if DOMPurify library is loaded\n        if (window['DOMPurify']) {\n            this.set('purify', true)\n            log('trace', 'Uib:start', 'DOMPurify is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'DOMPurify is not loaded.')()\n        }\n        // Check if Markdown-IT library is loaded\n        if (window['markdownit']) {\n            this.set('markdown', true)\n            log('trace', 'Uib:start', 'Markdown-IT is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'Markdown-IT is not loaded.')()\n        }\n\n        // if (window['DOMPurify']) {\n        //     this.set('purify', true)\n        //     log('trace', 'Uib:start', 'DOMPurify is loaded.')\n        // } else {\n        //     log('trace', 'Uib:start', 'DOMPurify is not loaded.')\n        // }\n\n        // Set up msg listener for the optional showMsg\n        this.onChange('msg', (msg) => {\n            if (this.#isShowMsg === true) {\n                const eMsg = document.getElementById('uib_last_msg')\n                if (eMsg) eMsg.innerHTML = this.syntaxHighlight(msg)\n            }\n        })\n\n        this._dispatchCustomEvent('uibuilder:startComplete')\n    }\n\n    //#endregion -------- ------------ -------- //\n} // ==== End of Class Uib ====\n\n//#region --- Wrap up - get things started ---\n\n// Create an instance (we will only ever want one)\nconst uibuilder = new Uib()\n\n// Assign reference to the instance to the global `window` object\n// Only useful if loading via <script> tag - prefer loading via `import uibuilder from ...`\nif (!window['uibuilder']) {\n    window['uibuilder'] = uibuilder\n} else {\n    log('error', 'uibuilder.module.js', '`uibuilder` already assigned to window. Have you tried to load it more than once?')\n}\nif (!window['uib']) {\n    window['uib'] = uibuilder\n} else {\n    log('warn', 'uibuilder.module.js', '`uib` shortcut already assigned to window.')\n}\n\n// Assign `$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$`.\nif (!window['$']) {\n    /** @type {HTMLElement} */\n    window['$'] = window['uibuilder'].$ // document.querySelector.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` or `uib.$` instead.')\n}\n// Assign `$$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$$']) {\n    /** @type {HTMLElement} */\n    window['$$'] = window['uibuilder'].$$ // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` or `uib.$$` instead.')\n}\n\n// Assign `$ui` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$ui']) {\n    /** @type {HTMLElement} */\n    window['$ui'] = window['uibuilder'].$ui // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$ui`, it is already in use. Use `uibuilder.$ui` or `uib.$ui` instead.')\n}\n\n// Can import as `import uibuilder from ...` OR `import {uibuilder} from ...`\nexport { uibuilder }\nexport default uibuilder\n\n// Attempt to run start fn\nuibuilder.start()\n\n// Add the class as a new Custom Element to the window object\ncustomElements.define('uib-var', UibVar)\n\n//#endregion --- Wrap up ---\n\n// EOF\n", "/** A zero dependency web component that will display a managed uibuilder variable.\n *\n * Version: 0.0.1 2023-10-07\n *\n * ToDo:\n * -\n */\n/*\n  Copyright (c) 2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n// const template = document.createElement('template')\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<link type=\"text/css\" rel=\"stylesheet\" href=\"\"../uibuilder/uib-brand.min.css\"\" media=\"all\"><span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`\n// {/* <style>@import url(\"../uibuilder/uib-brand.min.css\");</style><span></span> */}\n// `\n\nexport default class UibVar extends HTMLElement {\n    //#region --- Class Properties ---\n    /** @type {string} Name of the uibuilder mangaged variable to use */\n    variable\n    /** Current value of the watched variable */\n    value\n    /** Whether to output if the variable is undefined */\n    undefined = false\n    /** Whether to send update value to Node-RED on change */\n    report = false\n    /** What is the value type */\n    type = 'plain'\n    /** what are the available types? */\n    types = ['plain', 'html', 'markdown', 'object']\n\n    /** Mini jQuery-like shadow dom selector (see constructor) */\n    $\n    \n    /** Holds a count of how many instances of this component are on the page */\n    static _iCount = 0\n    /** @type {Array<string>} List of all of the html attribs (props) listened to */\n    static props = ['name', 'id', 'variable', 'undefined', 'report', 'type']\n    //#endregion --- Class Properties ---\n\n    constructor() {\n        super()\n        this.shadow = this.attachShadow({ mode: 'open', delegatesFocus: true })\n            // .append(template.content.cloneNode(true))\n\n        this.$ = this.shadowRoot.querySelector.bind(this.shadowRoot)\n\n        // Apply external styles to the shadow dom\n        this.css = document.createElement(\"link\")\n        this.css.setAttribute(\"type\", \"text/css\")\n        this.css.setAttribute(\"rel\", \"stylesheet\")\n        this.css.setAttribute(\"href\", \"../uibuilder/uib-brand.min.css\")\n\n        this.dispatchEvent(new Event(`uib-var:construction`, { bubbles: true, composed: true }))\n    }\n\n    // Makes HTML attribute change watched\n    static get observedAttributes() {\n        return UibVar.props\n    }\n\n    /** NOTE: On initial startup, this is called for each watched attrib set in HTML - BEFORE connectedCallback is called  */\n    attributeChangedCallback(attrib, oldVal, newVal) {\n        if ( oldVal === newVal ) return\n\n        switch (attrib) {\n            case 'variable': {\n                if (newVal === '') throw new Error('[uib-var] Attribute \"variable\" MUST be set to a UIBUILDER managed variable name')\n                this.variable = newVal\n                this.doWatch()\n                break\n            }\n            case 'undefined': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.undefined = true\n                else this.undefined = false\n                break\n            }\n            case 'report': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.report = true\n                else this.report = false\n                break\n            }\n            case 'type': {\n                if (newVal === '' || !this.types.includes(newVal.toLowerCase())) this.type = 'plain'\n                else this.type = newVal\n                break\n            }\n\n            default: {\n                this[attrib] = newVal\n                break\n            }\n        }\n    } // --- end of attributeChangedCallback --- //\n\n    // Runs when an instance is added to the DOM\n    connectedCallback() {\n        // Make sure instance has an ID. Create an id from name or calculation if needed\n        if (!this.id) {\n            if (!this.name) this.name = this.getAttribute('name')\n            if (this.name) this.id = this.name.toLowerCase().replace(/\\s/g, '_')\n            else this.id = `uib-var-${++UibVar._iCount}`\n        }\n    }  // ---- end of connectedCallback ---- //\n\n    // Runs when an instance is removed from the DOM\n    // disconnectedCallback() {} // ---- end of disconnectedCallback ---- //\n\n    /** Process changes to the required uibuilder variable */\n    doWatch() {\n        if (!this.variable) throw new Error('No variable name provided')\n        // if (!window['uibuilder']) throw new Error('UIBUILDER client library not loaded - this component must be loaded AFTER the UIBUILDER library')\n\n        this.value = window['uibuilder'].get(this.variable)\n        this.varDom()\n\n        // Watch for changes in the variable\n        window['uibuilder'].onChange(this.variable, (val) => {\n            this.value = val\n            this.varDom()\n            if (this.report === true) window['uibuilder'].send({topic: this.variable, payload: this.value || undefined})\n        })\n    }\n\n    /** Convert this.value to DOM output */\n    varDom() {\n        // If user doesn't want to show undefined vars, allow the component slot to show instead\n        if (this.value === undefined && this.undefined !== true) { \n            this.shadow.innerHTML = '<slot></slot>'\n            return\n        }\n        \n        let val = this.value\n\n        // console.log('\uD83E\uDDEA varDOM: ', val, typeof val, this.type)\n\n        switch (this.type) {\n            case 'markdown': {\n                this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(window['uibuilder'].convertMarkdown(val))\n                break\n            }\n        \n            case 'object': {\n                // console.log(window['uibuilder'].syntaxHighlight(val))\n                this.shadow.innerHTML = `<pre class=\"syntax-highlight\">${window['uibuilder'].syntaxHighlight(val)}</pre>`\n                break\n            }\n        \n            case 'plain':\n            case 'html':\n            default: {\n                const t = typeof val\n                if (Array.isArray(val) || t === '[object Object]' || t === 'object') {\n                    try {\n                        this.shadow.innerHTML = JSON.stringify(val)\n                    } catch (e) {\n                        this.shadow.innerHTML = val\n                    }\n                } else {\n                    this.shadow.innerHTML = val\n                }\n                break\n            }\n        }\n\n        this.shadow.appendChild(this.css)\n        // this.$('span').innerHTML = window['uibuilder'].sanitiseHTML(val)\n        // this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(val)\n    }\n}\n\n// Add the class as a new Custom Element to the window object \n// customElements.define('uib-var', UibVar)\n", "const PACKET_TYPES = Object.create(null); // no Map = no polyfill\nPACKET_TYPES[\"open\"] = \"0\";\nPACKET_TYPES[\"close\"] = \"1\";\nPACKET_TYPES[\"ping\"] = \"2\";\nPACKET_TYPES[\"pong\"] = \"3\";\nPACKET_TYPES[\"message\"] = \"4\";\nPACKET_TYPES[\"upgrade\"] = \"5\";\nPACKET_TYPES[\"noop\"] = \"6\";\nconst PACKET_TYPES_REVERSE = Object.create(null);\nObject.keys(PACKET_TYPES).forEach(key => {\n    PACKET_TYPES_REVERSE[PACKET_TYPES[key]] = key;\n});\nconst ERROR_PACKET = { type: \"error\", data: \"parser error\" };\nexport { PACKET_TYPES, PACKET_TYPES_REVERSE, ERROR_PACKET };\n", "import { PACKET_TYPES } from \"./commons.js\";\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        Object.prototype.toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\n// ArrayBuffer.isView method is not defined in IE10\nconst isView = obj => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj && obj.buffer instanceof ArrayBuffer;\n};\nconst encodePacket = ({ type, data }, supportsBinary, callback) => {\n    if (withNativeBlob && data instanceof Blob) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(data, callback);\n        }\n    }\n    else if (withNativeArrayBuffer &&\n        (data instanceof ArrayBuffer || isView(data))) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(new Blob([data]), callback);\n        }\n    }\n    // plain string\n    return callback(PACKET_TYPES[type] + (data || \"\"));\n};\nconst encodeBlobAsBase64 = (data, callback) => {\n    const fileReader = new FileReader();\n    fileReader.onload = function () {\n        const content = fileReader.result.split(\",\")[1];\n        callback(\"b\" + (content || \"\"));\n    };\n    return fileReader.readAsDataURL(data);\n};\nfunction toArray(data) {\n    if (data instanceof Uint8Array) {\n        return data;\n    }\n    else if (data instanceof ArrayBuffer) {\n        return new Uint8Array(data);\n    }\n    else {\n        return new Uint8Array(data.buffer, data.byteOffset, data.byteLength);\n    }\n}\nlet TEXT_ENCODER;\nexport function encodePacketToBinary(packet, callback) {\n    if (withNativeBlob && packet.data instanceof Blob) {\n        return packet.data\n            .arrayBuffer()\n            .then(toArray)\n            .then(callback);\n    }\n    else if (withNativeArrayBuffer &&\n        (packet.data instanceof ArrayBuffer || isView(packet.data))) {\n        return callback(toArray(packet.data));\n    }\n    encodePacket(packet, false, encoded => {\n        if (!TEXT_ENCODER) {\n            TEXT_ENCODER = new TextEncoder();\n        }\n        callback(TEXT_ENCODER.encode(encoded));\n    });\n}\nexport { encodePacket };\n", "// imported from https://github.com/socketio/base64-arraybuffer\nconst chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';\n// Use a lookup table to find the index.\nconst lookup = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);\nfor (let i = 0; i < chars.length; i++) {\n    lookup[chars.charCodeAt(i)] = i;\n}\nexport const encode = (arraybuffer) => {\n    let bytes = new Uint8Array(arraybuffer), i, len = bytes.length, base64 = '';\n    for (i = 0; i < len; i += 3) {\n        base64 += chars[bytes[i] >> 2];\n        base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];\n        base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];\n        base64 += chars[bytes[i + 2] & 63];\n    }\n    if (len % 3 === 2) {\n        base64 = base64.substring(0, base64.length - 1) + '=';\n    }\n    else if (len % 3 === 1) {\n        base64 = base64.substring(0, base64.length - 2) + '==';\n    }\n    return base64;\n};\nexport const decode = (base64) => {\n    let bufferLength = base64.length * 0.75, len = base64.length, i, p = 0, encoded1, encoded2, encoded3, encoded4;\n    if (base64[base64.length - 1] === '=') {\n        bufferLength--;\n        if (base64[base64.length - 2] === '=') {\n            bufferLength--;\n        }\n    }\n    const arraybuffer = new ArrayBuffer(bufferLength), bytes = new Uint8Array(arraybuffer);\n    for (i = 0; i < len; i += 4) {\n        encoded1 = lookup[base64.charCodeAt(i)];\n        encoded2 = lookup[base64.charCodeAt(i + 1)];\n        encoded3 = lookup[base64.charCodeAt(i + 2)];\n        encoded4 = lookup[base64.charCodeAt(i + 3)];\n        bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n        bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n        bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n    }\n    return arraybuffer;\n};\n", "import { ERROR_PACKET, PACKET_TYPES_REVERSE } from \"./commons.js\";\nimport { decode } from \"./contrib/base64-arraybuffer.js\";\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nexport const decodePacket = (encodedPacket, binaryType) => {\n    if (typeof encodedPacket !== \"string\") {\n        return {\n            type: \"message\",\n            data: mapBinary(encodedPacket, binaryType)\n        };\n    }\n    const type = encodedPacket.charAt(0);\n    if (type === \"b\") {\n        return {\n            type: \"message\",\n            data: decodeBase64Packet(encodedPacket.substring(1), binaryType)\n        };\n    }\n    const packetType = PACKET_TYPES_REVERSE[type];\n    if (!packetType) {\n        return ERROR_PACKET;\n    }\n    return encodedPacket.length > 1\n        ? {\n            type: PACKET_TYPES_REVERSE[type],\n            data: encodedPacket.substring(1)\n        }\n        : {\n            type: PACKET_TYPES_REVERSE[type]\n        };\n};\nconst decodeBase64Packet = (data, binaryType) => {\n    if (withNativeArrayBuffer) {\n        const decoded = decode(data);\n        return mapBinary(decoded, binaryType);\n    }\n    else {\n        return { base64: true, data }; // fallback for old browsers\n    }\n};\nconst mapBinary = (data, binaryType) => {\n    switch (binaryType) {\n        case \"blob\":\n            if (data instanceof Blob) {\n                // from WebSocket + binaryType \"blob\"\n                return data;\n            }\n            else {\n                // from HTTP long-polling or WebTransport\n                return new Blob([data]);\n            }\n        case \"arraybuffer\":\n        default:\n            if (data instanceof ArrayBuffer) {\n                // from HTTP long-polling (base64) or WebSocket + binaryType \"arraybuffer\"\n                return data;\n            }\n            else {\n                // from WebTransport (Uint8Array)\n                return data.buffer;\n            }\n    }\n};\n", "import { encodePacket, encodePacketToBinary } from \"./encodePacket.js\";\nimport { decodePacket } from \"./decodePacket.js\";\nimport { ERROR_PACKET } from \"./commons.js\";\nconst SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text\nconst encodePayload = (packets, callback) => {\n    // some packets may be added to the array while encoding, so the initial length must be saved\n    const length = packets.length;\n    const encodedPackets = new Array(length);\n    let count = 0;\n    packets.forEach((packet, i) => {\n        // force base64 encoding for binary packets\n        encodePacket(packet, false, encodedPacket => {\n            encodedPackets[i] = encodedPacket;\n            if (++count === length) {\n                callback(encodedPackets.join(SEPARATOR));\n            }\n        });\n    });\n};\nconst decodePayload = (encodedPayload, binaryType) => {\n    const encodedPackets = encodedPayload.split(SEPARATOR);\n    const packets = [];\n    for (let i = 0; i < encodedPackets.length; i++) {\n        const decodedPacket = decodePacket(encodedPackets[i], binaryType);\n        packets.push(decodedPacket);\n        if (decodedPacket.type === \"error\") {\n            break;\n        }\n    }\n    return packets;\n};\nexport function createPacketEncoderStream() {\n    return new TransformStream({\n        transform(packet, controller) {\n            encodePacketToBinary(packet, encodedPacket => {\n                const payloadLength = encodedPacket.length;\n                let header;\n                // inspired by the WebSocket format: https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API/Writing_WebSocket_servers#decoding_payload_length\n                if (payloadLength < 126) {\n                    header = new Uint8Array(1);\n                    new DataView(header.buffer).setUint8(0, payloadLength);\n                }\n                else if (payloadLength < 65536) {\n                    header = new Uint8Array(3);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 126);\n                    view.setUint16(1, payloadLength);\n                }\n                else {\n                    header = new Uint8Array(9);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 127);\n                    view.setBigUint64(1, BigInt(payloadLength));\n                }\n                // first bit indicates whether the payload is plain text (0) or binary (1)\n                if (packet.data && typeof packet.data !== \"string\") {\n                    header[0] |= 0x80;\n                }\n                controller.enqueue(header);\n                controller.enqueue(encodedPacket);\n            });\n        }\n    });\n}\nlet TEXT_DECODER;\nfunction totalLength(chunks) {\n    return chunks.reduce((acc, chunk) => acc + chunk.length, 0);\n}\nfunction concatChunks(chunks, size) {\n    if (chunks[0].length === size) {\n        return chunks.shift();\n    }\n    const buffer = new Uint8Array(size);\n    let j = 0;\n    for (let i = 0; i < size; i++) {\n        buffer[i] = chunks[0][j++];\n        if (j === chunks[0].length) {\n            chunks.shift();\n            j = 0;\n        }\n    }\n    if (chunks.length && j < chunks[0].length) {\n        chunks[0] = chunks[0].slice(j);\n    }\n    return buffer;\n}\nexport function createPacketDecoderStream(maxPayload, binaryType) {\n    if (!TEXT_DECODER) {\n        TEXT_DECODER = new TextDecoder();\n    }\n    const chunks = [];\n    let state = 0 /* READ_HEADER */;\n    let expectedLength = -1;\n    let isBinary = false;\n    return new TransformStream({\n        transform(chunk, controller) {\n            chunks.push(chunk);\n            while (true) {\n                if (state === 0 /* READ_HEADER */) {\n                    if (totalLength(chunks) < 1) {\n                        break;\n                    }\n                    const header = concatChunks(chunks, 1);\n                    isBinary = (header[0] & 0x80) === 0x80;\n                    expectedLength = header[0] & 0x7f;\n                    if (expectedLength < 126) {\n                        state = 3 /* READ_PAYLOAD */;\n                    }\n                    else if (expectedLength === 126) {\n                        state = 1 /* READ_EXTENDED_LENGTH_16 */;\n                    }\n                    else {\n                        state = 2 /* READ_EXTENDED_LENGTH_64 */;\n                    }\n                }\n                else if (state === 1 /* READ_EXTENDED_LENGTH_16 */) {\n                    if (totalLength(chunks) < 2) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 2);\n                    expectedLength = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length).getUint16(0);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else if (state === 2 /* READ_EXTENDED_LENGTH_64 */) {\n                    if (totalLength(chunks) < 8) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 8);\n                    const view = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length);\n                    const n = view.getUint32(0);\n                    if (n > Math.pow(2, 53 - 32) - 1) {\n                        // the maximum safe integer in JavaScript is 2^53 - 1\n                        controller.enqueue(ERROR_PACKET);\n                        break;\n                    }\n                    expectedLength = n * Math.pow(2, 32) + view.getUint32(4);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else {\n                    if (totalLength(chunks) < expectedLength) {\n                        break;\n                    }\n                    const data = concatChunks(chunks, expectedLength);\n                    controller.enqueue(decodePacket(isBinary ? data : TEXT_DECODER.decode(data), binaryType));\n                    state = 0 /* READ_HEADER */;\n                }\n                if (expectedLength === 0 || expectedLength > maxPayload) {\n                    controller.enqueue(ERROR_PACKET);\n                    break;\n                }\n            }\n        }\n    });\n}\nexport const protocol = 4;\nexport { encodePacket, encodePayload, decodePacket, decodePayload };\n", "/**\n * Initialize a new `Emitter`.\n *\n * @api public\n */\n\nexport function Emitter(obj) {\n  if (obj) return mixin(obj);\n}\n\n/**\n * Mixin the emitter properties.\n *\n * @param {Object} obj\n * @return {Object}\n * @api private\n */\n\nfunction mixin(obj) {\n  for (var key in Emitter.prototype) {\n    obj[key] = Emitter.prototype[key];\n  }\n  return obj;\n}\n\n/**\n * Listen on the given `event` with `fn`.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.on =\nEmitter.prototype.addEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])\n    .push(fn);\n  return this;\n};\n\n/**\n * Adds an `event` listener that will be invoked a single\n * time then automatically removed.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.once = function(event, fn){\n  function on() {\n    this.off(event, on);\n    fn.apply(this, arguments);\n  }\n\n  on.fn = fn;\n  this.on(event, on);\n  return this;\n};\n\n/**\n * Remove the given callback for `event` or all\n * registered callbacks.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.off =\nEmitter.prototype.removeListener =\nEmitter.prototype.removeAllListeners =\nEmitter.prototype.removeEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n\n  // all\n  if (0 == arguments.length) {\n    this._callbacks = {};\n    return this;\n  }\n\n  // specific event\n  var callbacks = this._callbacks['$' + event];\n  if (!callbacks) return this;\n\n  // remove all handlers\n  if (1 == arguments.length) {\n    delete this._callbacks['$' + event];\n    return this;\n  }\n\n  // remove specific handler\n  var cb;\n  for (var i = 0; i < callbacks.length; i++) {\n    cb = callbacks[i];\n    if (cb === fn || cb.fn === fn) {\n      callbacks.splice(i, 1);\n      break;\n    }\n  }\n\n  // Remove event specific arrays for event types that no\n  // one is subscribed for to avoid memory leak.\n  if (callbacks.length === 0) {\n    delete this._callbacks['$' + event];\n  }\n\n  return this;\n};\n\n/**\n * Emit `event` with the given args.\n *\n * @param {String} event\n * @param {Mixed} ...\n * @return {Emitter}\n */\n\nEmitter.prototype.emit = function(event){\n  this._callbacks = this._callbacks || {};\n\n  var args = new Array(arguments.length - 1)\n    , callbacks = this._callbacks['$' + event];\n\n  for (var i = 1; i < arguments.length; i++) {\n    args[i - 1] = arguments[i];\n  }\n\n  if (callbacks) {\n    callbacks = callbacks.slice(0);\n    for (var i = 0, len = callbacks.length; i < len; ++i) {\n      callbacks[i].apply(this, args);\n    }\n  }\n\n  return this;\n};\n\n// alias used for reserved events (protected method)\nEmitter.prototype.emitReserved = Emitter.prototype.emit;\n\n/**\n * Return array of callbacks for `event`.\n *\n * @param {String} event\n * @return {Array}\n * @api public\n */\n\nEmitter.prototype.listeners = function(event){\n  this._callbacks = this._callbacks || {};\n  return this._callbacks['$' + event] || [];\n};\n\n/**\n * Check if this emitter has `event` handlers.\n *\n * @param {String} event\n * @return {Boolean}\n * @api public\n */\n\nEmitter.prototype.hasListeners = function(event){\n  return !! this.listeners(event).length;\n};\n", "export const globalThisShim = (() => {\n    if (typeof self !== \"undefined\") {\n        return self;\n    }\n    else if (typeof window !== \"undefined\") {\n        return window;\n    }\n    else {\n        return Function(\"return this\")();\n    }\n})();\n", "import { globalThisShim as globalThis } from \"./globalThis.js\";\nexport function pick(obj, ...attr) {\n    return attr.reduce((acc, k) => {\n        if (obj.hasOwnProperty(k)) {\n            acc[k] = obj[k];\n        }\n        return acc;\n    }, {});\n}\n// Keep a reference to the real timeout functions so they can be used when overridden\nconst NATIVE_SET_TIMEOUT = globalThis.setTimeout;\nconst NATIVE_CLEAR_TIMEOUT = globalThis.clearTimeout;\nexport function installTimerFunctions(obj, opts) {\n    if (opts.useNativeTimers) {\n        obj.setTimeoutFn = NATIVE_SET_TIMEOUT.bind(globalThis);\n        obj.clearTimeoutFn = NATIVE_CLEAR_TIMEOUT.bind(globalThis);\n    }\n    else {\n        obj.setTimeoutFn = globalThis.setTimeout.bind(globalThis);\n        obj.clearTimeoutFn = globalThis.clearTimeout.bind(globalThis);\n    }\n}\n// base64 encoded buffers are about 33% bigger (https://en.wikipedia.org/wiki/Base64)\nconst BASE64_OVERHEAD = 1.33;\n// we could also have used `new Blob([obj]).size`, but it isn't supported in IE9\nexport function byteLength(obj) {\n    if (typeof obj === \"string\") {\n        return utf8Length(obj);\n    }\n    // arraybuffer or blob\n    return Math.ceil((obj.byteLength || obj.size) * BASE64_OVERHEAD);\n}\nfunction utf8Length(str) {\n    let c = 0, length = 0;\n    for (let i = 0, l = str.length; i < l; i++) {\n        c = str.charCodeAt(i);\n        if (c < 0x80) {\n            length += 1;\n        }\n        else if (c < 0x800) {\n            length += 2;\n        }\n        else if (c < 0xd800 || c >= 0xe000) {\n            length += 3;\n        }\n        else {\n            i++;\n            length += 4;\n        }\n    }\n    return length;\n}\n", "// imported from https://github.com/galkn/querystring\n/**\n * Compiles a querystring\n * Returns string representation of the object\n *\n * @param {Object}\n * @api private\n */\nexport function encode(obj) {\n    let str = '';\n    for (let i in obj) {\n        if (obj.hasOwnProperty(i)) {\n            if (str.length)\n                str += '&';\n            str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);\n        }\n    }\n    return str;\n}\n/**\n * Parses a simple querystring into an object\n *\n * @param {String} qs\n * @api private\n */\nexport function decode(qs) {\n    let qry = {};\n    let pairs = qs.split('&');\n    for (let i = 0, l = pairs.length; i < l; i++) {\n        let pair = pairs[i].split('=');\n        qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);\n    }\n    return qry;\n}\n", "import { decodePacket } from \"engine.io-parser\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions } from \"./util.js\";\nimport { encode } from \"./contrib/parseqs.js\";\nexport class TransportError extends Error {\n    constructor(reason, description, context) {\n        super(reason);\n        this.description = description;\n        this.context = context;\n        this.type = \"TransportError\";\n    }\n}\nexport class Transport extends Emitter {\n    /**\n     * Transport abstract constructor.\n     *\n     * @param {Object} opts - options\n     * @protected\n     */\n    constructor(opts) {\n        super();\n        this.writable = false;\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.query = opts.query;\n        this.socket = opts.socket;\n    }\n    /**\n     * Emits an error.\n     *\n     * @param {String} reason\n     * @param description\n     * @param context - the error context\n     * @return {Transport} for chaining\n     * @protected\n     */\n    onError(reason, description, context) {\n        super.emitReserved(\"error\", new TransportError(reason, description, context));\n        return this;\n    }\n    /**\n     * Opens the transport.\n     */\n    open() {\n        this.readyState = \"opening\";\n        this.doOpen();\n        return this;\n    }\n    /**\n     * Closes the transport.\n     */\n    close() {\n        if (this.readyState === \"opening\" || this.readyState === \"open\") {\n            this.doClose();\n            this.onClose();\n        }\n        return this;\n    }\n    /**\n     * Sends multiple packets.\n     *\n     * @param {Array} packets\n     */\n    send(packets) {\n        if (this.readyState === \"open\") {\n            this.write(packets);\n        }\n        else {\n            // this might happen if the transport was silently closed in the beforeunload event handler\n        }\n    }\n    /**\n     * Called upon open\n     *\n     * @protected\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        this.writable = true;\n        super.emitReserved(\"open\");\n    }\n    /**\n     * Called with data.\n     *\n     * @param {String} data\n     * @protected\n     */\n    onData(data) {\n        const packet = decodePacket(data, this.socket.binaryType);\n        this.onPacket(packet);\n    }\n    /**\n     * Called with a decoded packet.\n     *\n     * @protected\n     */\n    onPacket(packet) {\n        super.emitReserved(\"packet\", packet);\n    }\n    /**\n     * Called upon close.\n     *\n     * @protected\n     */\n    onClose(details) {\n        this.readyState = \"closed\";\n        super.emitReserved(\"close\", details);\n    }\n    /**\n     * Pauses the transport, in order not to lose packets during an upgrade.\n     *\n     * @param onPause\n     */\n    pause(onPause) { }\n    createUri(schema, query = {}) {\n        return (schema +\n            \"://\" +\n            this._hostname() +\n            this._port() +\n            this.opts.path +\n            this._query(query));\n    }\n    _hostname() {\n        const hostname = this.opts.hostname;\n        return hostname.indexOf(\":\") === -1 ? hostname : \"[\" + hostname + \"]\";\n    }\n    _port() {\n        if (this.opts.port &&\n            ((this.opts.secure && Number(this.opts.port !== 443)) ||\n                (!this.opts.secure && Number(this.opts.port) !== 80))) {\n            return \":\" + this.opts.port;\n        }\n        else {\n            return \"\";\n        }\n    }\n    _query(query) {\n        const encodedQuery = encode(query);\n        return encodedQuery.length ? \"?\" + encodedQuery : \"\";\n    }\n}\n", "// imported from https://github.com/unshiftio/yeast\n'use strict';\nconst alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split(''), length = 64, map = {};\nlet seed = 0, i = 0, prev;\n/**\n * Return a string representing the specified number.\n *\n * @param {Number} num The number to convert.\n * @returns {String} The string representation of the number.\n * @api public\n */\nexport function encode(num) {\n    let encoded = '';\n    do {\n        encoded = alphabet[num % length] + encoded;\n        num = Math.floor(num / length);\n    } while (num > 0);\n    return encoded;\n}\n/**\n * Return the integer value specified by the given string.\n *\n * @param {String} str The string to convert.\n * @returns {Number} The integer value represented by the string.\n * @api public\n */\nexport function decode(str) {\n    let decoded = 0;\n    for (i = 0; i < str.length; i++) {\n        decoded = decoded * length + map[str.charAt(i)];\n    }\n    return decoded;\n}\n/**\n * Yeast: A tiny growing id generator.\n *\n * @returns {String} A unique id.\n * @api public\n */\nexport function yeast() {\n    const now = encode(+new Date());\n    if (now !== prev)\n        return seed = 0, prev = now;\n    return now + '.' + encode(seed++);\n}\n//\n// Map each character to its index.\n//\nfor (; i < length; i++)\n    map[alphabet[i]] = i;\n", "// imported from https://github.com/component/has-cors\nlet value = false;\ntry {\n    value = typeof XMLHttpRequest !== 'undefined' &&\n        'withCredentials' in new XMLHttpRequest();\n}\ncatch (err) {\n    // if XMLHttp support is disabled in IE then it will throw\n    // when trying to create\n}\nexport const hasCORS = value;\n", "// browser shim for xmlhttprequest module\nimport { hasCORS } from \"../contrib/has-cors.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nexport function XHR(opts) {\n    const xdomain = opts.xdomain;\n    // XMLHttpRequest can be disabled on IE\n    try {\n        if (\"undefined\" !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {\n            return new XMLHttpRequest();\n        }\n    }\n    catch (e) { }\n    if (!xdomain) {\n        try {\n            return new globalThis[[\"Active\"].concat(\"Object\").join(\"X\")](\"Microsoft.XMLHTTP\");\n        }\n        catch (e) { }\n    }\n}\nexport function createCookieJar() { }\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { encodePayload, decodePayload } from \"engine.io-parser\";\nimport { createCookieJar, XHR as XMLHttpRequest, } from \"./xmlhttprequest.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions, pick } from \"../util.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nfunction empty() { }\nconst hasXHR2 = (function () {\n    const xhr = new XMLHttpRequest({\n        xdomain: false,\n    });\n    return null != xhr.responseType;\n})();\nexport class Polling extends Transport {\n    /**\n     * XHR Polling constructor.\n     *\n     * @param {Object} opts\n     * @package\n     */\n    constructor(opts) {\n        super(opts);\n        this.polling = false;\n        if (typeof location !== \"undefined\") {\n            const isSSL = \"https:\" === location.protocol;\n            let port = location.port;\n            // some user agents have empty `location.port`\n            if (!port) {\n                port = isSSL ? \"443\" : \"80\";\n            }\n            this.xd =\n                (typeof location !== \"undefined\" &&\n                    opts.hostname !== location.hostname) ||\n                    port !== opts.port;\n        }\n        /**\n         * XHR supports binary\n         */\n        const forceBase64 = opts && opts.forceBase64;\n        this.supportsBinary = hasXHR2 && !forceBase64;\n        if (this.opts.withCredentials) {\n            this.cookieJar = createCookieJar();\n        }\n    }\n    get name() {\n        return \"polling\";\n    }\n    /**\n     * Opens the socket (triggers polling). We write a PING message to determine\n     * when the transport is open.\n     *\n     * @protected\n     */\n    doOpen() {\n        this.poll();\n    }\n    /**\n     * Pauses polling.\n     *\n     * @param {Function} onPause - callback upon buffers are flushed and transport is paused\n     * @package\n     */\n    pause(onPause) {\n        this.readyState = \"pausing\";\n        const pause = () => {\n            this.readyState = \"paused\";\n            onPause();\n        };\n        if (this.polling || !this.writable) {\n            let total = 0;\n            if (this.polling) {\n                total++;\n                this.once(\"pollComplete\", function () {\n                    --total || pause();\n                });\n            }\n            if (!this.writable) {\n                total++;\n                this.once(\"drain\", function () {\n                    --total || pause();\n                });\n            }\n        }\n        else {\n            pause();\n        }\n    }\n    /**\n     * Starts polling cycle.\n     *\n     * @private\n     */\n    poll() {\n        this.polling = true;\n        this.doPoll();\n        this.emitReserved(\"poll\");\n    }\n    /**\n     * Overloads onData to detect payloads.\n     *\n     * @protected\n     */\n    onData(data) {\n        const callback = (packet) => {\n            // if its the first message we consider the transport open\n            if (\"opening\" === this.readyState && packet.type === \"open\") {\n                this.onOpen();\n            }\n            // if its a close packet, we close the ongoing requests\n            if (\"close\" === packet.type) {\n                this.onClose({ description: \"transport closed by the server\" });\n                return false;\n            }\n            // otherwise bypass onData and handle the message\n            this.onPacket(packet);\n        };\n        // decode payload\n        decodePayload(data, this.socket.binaryType).forEach(callback);\n        // if an event did not trigger closing\n        if (\"closed\" !== this.readyState) {\n            // if we got data we're not polling\n            this.polling = false;\n            this.emitReserved(\"pollComplete\");\n            if (\"open\" === this.readyState) {\n                this.poll();\n            }\n            else {\n            }\n        }\n    }\n    /**\n     * For polling, send a close packet.\n     *\n     * @protected\n     */\n    doClose() {\n        const close = () => {\n            this.write([{ type: \"close\" }]);\n        };\n        if (\"open\" === this.readyState) {\n            close();\n        }\n        else {\n            // in case we're trying to close while\n            // handshaking is in progress (GH-164)\n            this.once(\"open\", close);\n        }\n    }\n    /**\n     * Writes a packets payload.\n     *\n     * @param {Array} packets - data packets\n     * @protected\n     */\n    write(packets) {\n        this.writable = false;\n        encodePayload(packets, (data) => {\n            this.doWrite(data, () => {\n                this.writable = true;\n                this.emitReserved(\"drain\");\n            });\n        });\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"https\" : \"http\";\n        const query = this.query || {};\n        // cache busting is forced\n        if (false !== this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        if (!this.supportsBinary && !query.sid) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Creates a request.\n     *\n     * @param {String} method\n     * @private\n     */\n    request(opts = {}) {\n        Object.assign(opts, { xd: this.xd, cookieJar: this.cookieJar }, this.opts);\n        return new Request(this.uri(), opts);\n    }\n    /**\n     * Sends data.\n     *\n     * @param {String} data to send.\n     * @param {Function} called upon flush.\n     * @private\n     */\n    doWrite(data, fn) {\n        const req = this.request({\n            method: \"POST\",\n            data: data,\n        });\n        req.on(\"success\", fn);\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr post error\", xhrStatus, context);\n        });\n    }\n    /**\n     * Starts a poll cycle.\n     *\n     * @private\n     */\n    doPoll() {\n        const req = this.request();\n        req.on(\"data\", this.onData.bind(this));\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr poll error\", xhrStatus, context);\n        });\n        this.pollXhr = req;\n    }\n}\nexport class Request extends Emitter {\n    /**\n     * Request constructor\n     *\n     * @param {Object} options\n     * @package\n     */\n    constructor(uri, opts) {\n        super();\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.method = opts.method || \"GET\";\n        this.uri = uri;\n        this.data = undefined !== opts.data ? opts.data : null;\n        this.create();\n    }\n    /**\n     * Creates the XHR object and sends the request.\n     *\n     * @private\n     */\n    create() {\n        var _a;\n        const opts = pick(this.opts, \"agent\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"autoUnref\");\n        opts.xdomain = !!this.opts.xd;\n        const xhr = (this.xhr = new XMLHttpRequest(opts));\n        try {\n            xhr.open(this.method, this.uri, true);\n            try {\n                if (this.opts.extraHeaders) {\n                    xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);\n                    for (let i in this.opts.extraHeaders) {\n                        if (this.opts.extraHeaders.hasOwnProperty(i)) {\n                            xhr.setRequestHeader(i, this.opts.extraHeaders[i]);\n                        }\n                    }\n                }\n            }\n            catch (e) { }\n            if (\"POST\" === this.method) {\n                try {\n                    xhr.setRequestHeader(\"Content-type\", \"text/plain;charset=UTF-8\");\n                }\n                catch (e) { }\n            }\n            try {\n                xhr.setRequestHeader(\"Accept\", \"*/*\");\n            }\n            catch (e) { }\n            (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.addCookies(xhr);\n            // ie6 check\n            if (\"withCredentials\" in xhr) {\n                xhr.withCredentials = this.opts.withCredentials;\n            }\n            if (this.opts.requestTimeout) {\n                xhr.timeout = this.opts.requestTimeout;\n            }\n            xhr.onreadystatechange = () => {\n                var _a;\n                if (xhr.readyState === 3) {\n                    (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.parseCookies(xhr);\n                }\n                if (4 !== xhr.readyState)\n                    return;\n                if (200 === xhr.status || 1223 === xhr.status) {\n                    this.onLoad();\n                }\n                else {\n                    // make sure the `error` event handler that's user-set\n                    // does not throw in the same tick and gets caught here\n                    this.setTimeoutFn(() => {\n                        this.onError(typeof xhr.status === \"number\" ? xhr.status : 0);\n                    }, 0);\n                }\n            };\n            xhr.send(this.data);\n        }\n        catch (e) {\n            // Need to defer since .create() is called directly from the constructor\n            // and thus the 'error' event can only be only bound *after* this exception\n            // occurs.  Therefore, also, we cannot throw here at all.\n            this.setTimeoutFn(() => {\n                this.onError(e);\n            }, 0);\n            return;\n        }\n        if (typeof document !== \"undefined\") {\n            this.index = Request.requestsCount++;\n            Request.requests[this.index] = this;\n        }\n    }\n    /**\n     * Called upon error.\n     *\n     * @private\n     */\n    onError(err) {\n        this.emitReserved(\"error\", err, this.xhr);\n        this.cleanup(true);\n    }\n    /**\n     * Cleans up house.\n     *\n     * @private\n     */\n    cleanup(fromError) {\n        if (\"undefined\" === typeof this.xhr || null === this.xhr) {\n            return;\n        }\n        this.xhr.onreadystatechange = empty;\n        if (fromError) {\n            try {\n                this.xhr.abort();\n            }\n            catch (e) { }\n        }\n        if (typeof document !== \"undefined\") {\n            delete Request.requests[this.index];\n        }\n        this.xhr = null;\n    }\n    /**\n     * Called upon load.\n     *\n     * @private\n     */\n    onLoad() {\n        const data = this.xhr.responseText;\n        if (data !== null) {\n            this.emitReserved(\"data\", data);\n            this.emitReserved(\"success\");\n            this.cleanup();\n        }\n    }\n    /**\n     * Aborts the request.\n     *\n     * @package\n     */\n    abort() {\n        this.cleanup();\n    }\n}\nRequest.requestsCount = 0;\nRequest.requests = {};\n/**\n * Aborts pending requests when unloading the window. This is needed to prevent\n * memory leaks (e.g. when using IE) and to ensure that no spurious error is\n * emitted.\n */\nif (typeof document !== \"undefined\") {\n    // @ts-ignore\n    if (typeof attachEvent === \"function\") {\n        // @ts-ignore\n        attachEvent(\"onunload\", unloadHandler);\n    }\n    else if (typeof addEventListener === \"function\") {\n        const terminationEvent = \"onpagehide\" in globalThis ? \"pagehide\" : \"unload\";\n        addEventListener(terminationEvent, unloadHandler, false);\n    }\n}\nfunction unloadHandler() {\n    for (let i in Request.requests) {\n        if (Request.requests.hasOwnProperty(i)) {\n            Request.requests[i].abort();\n        }\n    }\n}\n", "import { globalThisShim as globalThis } from \"../globalThis.js\";\nexport const nextTick = (() => {\n    const isPromiseAvailable = typeof Promise === \"function\" && typeof Promise.resolve === \"function\";\n    if (isPromiseAvailable) {\n        return (cb) => Promise.resolve().then(cb);\n    }\n    else {\n        return (cb, setTimeoutFn) => setTimeoutFn(cb, 0);\n    }\n})();\nexport const WebSocket = globalThis.WebSocket || globalThis.MozWebSocket;\nexport const usingBrowserWebSocket = true;\nexport const defaultBinaryType = \"arraybuffer\";\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { pick } from \"../util.js\";\nimport { nextTick, usingBrowserWebSocket, WebSocket, } from \"./websocket-constructor.js\";\nimport { encodePacket } from \"engine.io-parser\";\n// detect ReactNative environment\nconst isReactNative = typeof navigator !== \"undefined\" &&\n    typeof navigator.product === \"string\" &&\n    navigator.product.toLowerCase() === \"reactnative\";\nexport class WS extends Transport {\n    /**\n     * WebSocket transport constructor.\n     *\n     * @param {Object} opts - connection options\n     * @protected\n     */\n    constructor(opts) {\n        super(opts);\n        this.supportsBinary = !opts.forceBase64;\n    }\n    get name() {\n        return \"websocket\";\n    }\n    doOpen() {\n        if (!this.check()) {\n            // let probe timeout\n            return;\n        }\n        const uri = this.uri();\n        const protocols = this.opts.protocols;\n        // React Native only supports the 'headers' option, and will print a warning if anything else is passed\n        const opts = isReactNative\n            ? {}\n            : pick(this.opts, \"agent\", \"perMessageDeflate\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"localAddress\", \"protocolVersion\", \"origin\", \"maxPayload\", \"family\", \"checkServerIdentity\");\n        if (this.opts.extraHeaders) {\n            opts.headers = this.opts.extraHeaders;\n        }\n        try {\n            this.ws =\n                usingBrowserWebSocket && !isReactNative\n                    ? protocols\n                        ? new WebSocket(uri, protocols)\n                        : new WebSocket(uri)\n                    : new WebSocket(uri, protocols, opts);\n        }\n        catch (err) {\n            return this.emitReserved(\"error\", err);\n        }\n        this.ws.binaryType = this.socket.binaryType;\n        this.addEventListeners();\n    }\n    /**\n     * Adds event listeners to the socket\n     *\n     * @private\n     */\n    addEventListeners() {\n        this.ws.onopen = () => {\n            if (this.opts.autoUnref) {\n                this.ws._socket.unref();\n            }\n            this.onOpen();\n        };\n        this.ws.onclose = (closeEvent) => this.onClose({\n            description: \"websocket connection closed\",\n            context: closeEvent,\n        });\n        this.ws.onmessage = (ev) => this.onData(ev.data);\n        this.ws.onerror = (e) => this.onError(\"websocket error\", e);\n    }\n    write(packets) {\n        this.writable = false;\n        // encodePacket efficient as it uses WS framing\n        // no need for encodePayload\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            encodePacket(packet, this.supportsBinary, (data) => {\n                // always create a new object (GH-437)\n                const opts = {};\n                if (!usingBrowserWebSocket) {\n                    if (packet.options) {\n                        opts.compress = packet.options.compress;\n                    }\n                    if (this.opts.perMessageDeflate) {\n                        const len = \n                        // @ts-ignore\n                        \"string\" === typeof data ? Buffer.byteLength(data) : data.length;\n                        if (len < this.opts.perMessageDeflate.threshold) {\n                            opts.compress = false;\n                        }\n                    }\n                }\n                // Sometimes the websocket has already been closed but the browser didn't\n                // have a chance of informing us about it yet, in that case send will\n                // throw an error\n                try {\n                    if (usingBrowserWebSocket) {\n                        // TypeError is thrown when passing the second argument on Safari\n                        this.ws.send(data);\n                    }\n                    else {\n                        this.ws.send(data, opts);\n                    }\n                }\n                catch (e) {\n                }\n                if (lastPacket) {\n                    // fake drain\n                    // defer to next tick to allow Socket to clear writeBuffer\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        if (typeof this.ws !== \"undefined\") {\n            this.ws.close();\n            this.ws = null;\n        }\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"wss\" : \"ws\";\n        const query = this.query || {};\n        // append timestamp to URI\n        if (this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        // communicate binary support capabilities\n        if (!this.supportsBinary) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Feature detection for WebSocket.\n     *\n     * @return {Boolean} whether this transport is available.\n     * @private\n     */\n    check() {\n        return !!WebSocket;\n    }\n}\n", "import { Transport } from \"../transport.js\";\nimport { nextTick } from \"./websocket-constructor.js\";\nimport { createPacketDecoderStream, createPacketEncoderStream, } from \"engine.io-parser\";\nexport class WT extends Transport {\n    get name() {\n        return \"webtransport\";\n    }\n    doOpen() {\n        // @ts-ignore\n        if (typeof WebTransport !== \"function\") {\n            return;\n        }\n        // @ts-ignore\n        this.transport = new WebTransport(this.createUri(\"https\"), this.opts.transportOptions[this.name]);\n        this.transport.closed\n            .then(() => {\n            this.onClose();\n        })\n            .catch((err) => {\n            this.onError(\"webtransport error\", err);\n        });\n        // note: we could have used async/await, but that would require some additional polyfills\n        this.transport.ready.then(() => {\n            this.transport.createBidirectionalStream().then((stream) => {\n                const decoderStream = createPacketDecoderStream(Number.MAX_SAFE_INTEGER, this.socket.binaryType);\n                const reader = stream.readable.pipeThrough(decoderStream).getReader();\n                const encoderStream = createPacketEncoderStream();\n                encoderStream.readable.pipeTo(stream.writable);\n                this.writer = encoderStream.writable.getWriter();\n                const read = () => {\n                    reader\n                        .read()\n                        .then(({ done, value }) => {\n                        if (done) {\n                            return;\n                        }\n                        this.onPacket(value);\n                        read();\n                    })\n                        .catch((err) => {\n                    });\n                };\n                read();\n                const packet = { type: \"open\" };\n                if (this.query.sid) {\n                    packet.data = `{\"sid\":\"${this.query.sid}\"}`;\n                }\n                this.writer.write(packet).then(() => this.onOpen());\n            });\n        });\n    }\n    write(packets) {\n        this.writable = false;\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            this.writer.write(packet).then(() => {\n                if (lastPacket) {\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        var _a;\n        (_a = this.transport) === null || _a === void 0 ? void 0 : _a.close();\n    }\n}\n", "import { Polling } from \"./polling.js\";\nimport { WS } from \"./websocket.js\";\nimport { WT } from \"./webtransport.js\";\nexport const transports = {\n    websocket: WS,\n    webtransport: WT,\n    polling: Polling,\n};\n", "// imported from https://github.com/galkn/parseuri\n/**\n * Parses a URI\n *\n * Note: we could also have used the built-in URL object, but it isn't supported on all platforms.\n *\n * See:\n * - https://developer.mozilla.org/en-US/docs/Web/API/URL\n * - https://caniuse.com/url\n * - https://www.rfc-editor.org/rfc/rfc3986#appendix-B\n *\n * History of the parse() method:\n * - first commit: https://github.com/socketio/socket.io-client/commit/4ee1d5d94b3906a9c052b459f1a818b15f38f91c\n * - export into its own module: https://github.com/socketio/engine.io-client/commit/de2c561e4564efeb78f1bdb1ba39ef81b2822cb3\n * - reimport: https://github.com/socketio/engine.io-client/commit/df32277c3f6d622eec5ed09f493cae3f3391d242\n *\n * @author Steven Levithan <stevenlevithan.com> (MIT license)\n * @api private\n */\nconst re = /^(?:(?![^:@\\/?#]+:[^:@\\/]*@)(http|https|ws|wss):\\/\\/)?((?:(([^:@\\/?#]*)(?::([^:@\\/?#]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\\/?#]*)(?::(\\d*))?)(((\\/(?:[^?#](?![^?#\\/]*\\.[^?#\\/.]+(?:[?#]|$)))*\\/?)?([^?#\\/]*))(?:\\?([^#]*))?(?:#(.*))?)/;\nconst parts = [\n    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'\n];\nexport function parse(str) {\n    if (str.length > 2000) {\n        throw \"URI too long\";\n    }\n    const src = str, b = str.indexOf('['), e = str.indexOf(']');\n    if (b != -1 && e != -1) {\n        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);\n    }\n    let m = re.exec(str || ''), uri = {}, i = 14;\n    while (i--) {\n        uri[parts[i]] = m[i] || '';\n    }\n    if (b != -1 && e != -1) {\n        uri.source = src;\n        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');\n        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');\n        uri.ipv6uri = true;\n    }\n    uri.pathNames = pathNames(uri, uri['path']);\n    uri.queryKey = queryKey(uri, uri['query']);\n    return uri;\n}\nfunction pathNames(obj, path) {\n    const regx = /\\/{2,9}/g, names = path.replace(regx, \"/\").split(\"/\");\n    if (path.slice(0, 1) == '/' || path.length === 0) {\n        names.splice(0, 1);\n    }\n    if (path.slice(-1) == '/') {\n        names.splice(names.length - 1, 1);\n    }\n    return names;\n}\nfunction queryKey(uri, query) {\n    const data = {};\n    query.replace(/(?:^|&)([^&=]*)=?([^&]*)/g, function ($0, $1, $2) {\n        if ($1) {\n            data[$1] = $2;\n        }\n    });\n    return data;\n}\n", "import { transports } from \"./transports/index.js\";\nimport { installTimerFunctions, byteLength } from \"./util.js\";\nimport { decode } from \"./contrib/parseqs.js\";\nimport { parse } from \"./contrib/parseuri.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { protocol } from \"engine.io-parser\";\nimport { defaultBinaryType } from \"./transports/websocket-constructor.js\";\nexport class Socket extends Emitter {\n    /**\n     * Socket constructor.\n     *\n     * @param {String|Object} uri - uri or options\n     * @param {Object} opts - options\n     */\n    constructor(uri, opts = {}) {\n        super();\n        this.binaryType = defaultBinaryType;\n        this.writeBuffer = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = null;\n        }\n        if (uri) {\n            uri = parse(uri);\n            opts.hostname = uri.host;\n            opts.secure = uri.protocol === \"https\" || uri.protocol === \"wss\";\n            opts.port = uri.port;\n            if (uri.query)\n                opts.query = uri.query;\n        }\n        else if (opts.host) {\n            opts.hostname = parse(opts.host).host;\n        }\n        installTimerFunctions(this, opts);\n        this.secure =\n            null != opts.secure\n                ? opts.secure\n                : typeof location !== \"undefined\" && \"https:\" === location.protocol;\n        if (opts.hostname && !opts.port) {\n            // if no port is specified manually, use the protocol default\n            opts.port = this.secure ? \"443\" : \"80\";\n        }\n        this.hostname =\n            opts.hostname ||\n                (typeof location !== \"undefined\" ? location.hostname : \"localhost\");\n        this.port =\n            opts.port ||\n                (typeof location !== \"undefined\" && location.port\n                    ? location.port\n                    : this.secure\n                        ? \"443\"\n                        : \"80\");\n        this.transports = opts.transports || [\n            \"polling\",\n            \"websocket\",\n            \"webtransport\",\n        ];\n        this.writeBuffer = [];\n        this.prevBufferLen = 0;\n        this.opts = Object.assign({\n            path: \"/engine.io\",\n            agent: false,\n            withCredentials: false,\n            upgrade: true,\n            timestampParam: \"t\",\n            rememberUpgrade: false,\n            addTrailingSlash: true,\n            rejectUnauthorized: true,\n            perMessageDeflate: {\n                threshold: 1024,\n            },\n            transportOptions: {},\n            closeOnBeforeunload: false,\n        }, opts);\n        this.opts.path =\n            this.opts.path.replace(/\\/$/, \"\") +\n                (this.opts.addTrailingSlash ? \"/\" : \"\");\n        if (typeof this.opts.query === \"string\") {\n            this.opts.query = decode(this.opts.query);\n        }\n        // set on handshake\n        this.id = null;\n        this.upgrades = null;\n        this.pingInterval = null;\n        this.pingTimeout = null;\n        // set on heartbeat\n        this.pingTimeoutTimer = null;\n        if (typeof addEventListener === \"function\") {\n            if (this.opts.closeOnBeforeunload) {\n                // Firefox closes the connection when the \"beforeunload\" event is emitted but not Chrome. This event listener\n                // ensures every browser behaves the same (no \"disconnect\" event at the Socket.IO level when the page is\n                // closed/reloaded)\n                this.beforeunloadEventListener = () => {\n                    if (this.transport) {\n                        // silently close the transport\n                        this.transport.removeAllListeners();\n                        this.transport.close();\n                    }\n                };\n                addEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n            }\n            if (this.hostname !== \"localhost\") {\n                this.offlineEventListener = () => {\n                    this.onClose(\"transport close\", {\n                        description: \"network connection lost\",\n                    });\n                };\n                addEventListener(\"offline\", this.offlineEventListener, false);\n            }\n        }\n        this.open();\n    }\n    /**\n     * Creates transport of the given type.\n     *\n     * @param {String} name - transport name\n     * @return {Transport}\n     * @private\n     */\n    createTransport(name) {\n        const query = Object.assign({}, this.opts.query);\n        // append engine.io protocol identifier\n        query.EIO = protocol;\n        // transport name\n        query.transport = name;\n        // session id if we already have one\n        if (this.id)\n            query.sid = this.id;\n        const opts = Object.assign({}, this.opts, {\n            query,\n            socket: this,\n            hostname: this.hostname,\n            secure: this.secure,\n            port: this.port,\n        }, this.opts.transportOptions[name]);\n        return new transports[name](opts);\n    }\n    /**\n     * Initializes transport to use and starts probe.\n     *\n     * @private\n     */\n    open() {\n        let transport;\n        if (this.opts.rememberUpgrade &&\n            Socket.priorWebsocketSuccess &&\n            this.transports.indexOf(\"websocket\") !== -1) {\n            transport = \"websocket\";\n        }\n        else if (0 === this.transports.length) {\n            // Emit error on next tick so it can be listened to\n            this.setTimeoutFn(() => {\n                this.emitReserved(\"error\", \"No transports available\");\n            }, 0);\n            return;\n        }\n        else {\n            transport = this.transports[0];\n        }\n        this.readyState = \"opening\";\n        // Retry with the next transport if the transport is disabled (jsonp: false)\n        try {\n            transport = this.createTransport(transport);\n        }\n        catch (e) {\n            this.transports.shift();\n            this.open();\n            return;\n        }\n        transport.open();\n        this.setTransport(transport);\n    }\n    /**\n     * Sets the current transport. Disables the existing one (if any).\n     *\n     * @private\n     */\n    setTransport(transport) {\n        if (this.transport) {\n            this.transport.removeAllListeners();\n        }\n        // set up transport\n        this.transport = transport;\n        // set up transport listeners\n        transport\n            .on(\"drain\", this.onDrain.bind(this))\n            .on(\"packet\", this.onPacket.bind(this))\n            .on(\"error\", this.onError.bind(this))\n            .on(\"close\", (reason) => this.onClose(\"transport close\", reason));\n    }\n    /**\n     * Probes a transport.\n     *\n     * @param {String} name - transport name\n     * @private\n     */\n    probe(name) {\n        let transport = this.createTransport(name);\n        let failed = false;\n        Socket.priorWebsocketSuccess = false;\n        const onTransportOpen = () => {\n            if (failed)\n                return;\n            transport.send([{ type: \"ping\", data: \"probe\" }]);\n            transport.once(\"packet\", (msg) => {\n                if (failed)\n                    return;\n                if (\"pong\" === msg.type && \"probe\" === msg.data) {\n                    this.upgrading = true;\n                    this.emitReserved(\"upgrading\", transport);\n                    if (!transport)\n                        return;\n                    Socket.priorWebsocketSuccess = \"websocket\" === transport.name;\n                    this.transport.pause(() => {\n                        if (failed)\n                            return;\n                        if (\"closed\" === this.readyState)\n                            return;\n                        cleanup();\n                        this.setTransport(transport);\n                        transport.send([{ type: \"upgrade\" }]);\n                        this.emitReserved(\"upgrade\", transport);\n                        transport = null;\n                        this.upgrading = false;\n                        this.flush();\n                    });\n                }\n                else {\n                    const err = new Error(\"probe error\");\n                    // @ts-ignore\n                    err.transport = transport.name;\n                    this.emitReserved(\"upgradeError\", err);\n                }\n            });\n        };\n        function freezeTransport() {\n            if (failed)\n                return;\n            // Any callback called by transport should be ignored since now\n            failed = true;\n            cleanup();\n            transport.close();\n            transport = null;\n        }\n        // Handle any error that happens while probing\n        const onerror = (err) => {\n            const error = new Error(\"probe error: \" + err);\n            // @ts-ignore\n            error.transport = transport.name;\n            freezeTransport();\n            this.emitReserved(\"upgradeError\", error);\n        };\n        function onTransportClose() {\n            onerror(\"transport closed\");\n        }\n        // When the socket is closed while we're probing\n        function onclose() {\n            onerror(\"socket closed\");\n        }\n        // When the socket is upgraded while we're probing\n        function onupgrade(to) {\n            if (transport && to.name !== transport.name) {\n                freezeTransport();\n            }\n        }\n        // Remove all listeners on the transport and on self\n        const cleanup = () => {\n            transport.removeListener(\"open\", onTransportOpen);\n            transport.removeListener(\"error\", onerror);\n            transport.removeListener(\"close\", onTransportClose);\n            this.off(\"close\", onclose);\n            this.off(\"upgrading\", onupgrade);\n        };\n        transport.once(\"open\", onTransportOpen);\n        transport.once(\"error\", onerror);\n        transport.once(\"close\", onTransportClose);\n        this.once(\"close\", onclose);\n        this.once(\"upgrading\", onupgrade);\n        if (this.upgrades.indexOf(\"webtransport\") !== -1 &&\n            name !== \"webtransport\") {\n            // favor WebTransport\n            this.setTimeoutFn(() => {\n                if (!failed) {\n                    transport.open();\n                }\n            }, 200);\n        }\n        else {\n            transport.open();\n        }\n    }\n    /**\n     * Called when connection is deemed open.\n     *\n     * @private\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        Socket.priorWebsocketSuccess = \"websocket\" === this.transport.name;\n        this.emitReserved(\"open\");\n        this.flush();\n        // we check for `readyState` in case an `open`\n        // listener already closed the socket\n        if (\"open\" === this.readyState && this.opts.upgrade) {\n            let i = 0;\n            const l = this.upgrades.length;\n            for (; i < l; i++) {\n                this.probe(this.upgrades[i]);\n            }\n        }\n    }\n    /**\n     * Handles a packet.\n     *\n     * @private\n     */\n    onPacket(packet) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            this.emitReserved(\"packet\", packet);\n            // Socket is live - any packet counts\n            this.emitReserved(\"heartbeat\");\n            this.resetPingTimeout();\n            switch (packet.type) {\n                case \"open\":\n                    this.onHandshake(JSON.parse(packet.data));\n                    break;\n                case \"ping\":\n                    this.sendPacket(\"pong\");\n                    this.emitReserved(\"ping\");\n                    this.emitReserved(\"pong\");\n                    break;\n                case \"error\":\n                    const err = new Error(\"server error\");\n                    // @ts-ignore\n                    err.code = packet.data;\n                    this.onError(err);\n                    break;\n                case \"message\":\n                    this.emitReserved(\"data\", packet.data);\n                    this.emitReserved(\"message\", packet.data);\n                    break;\n            }\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon handshake completion.\n     *\n     * @param {Object} data - handshake obj\n     * @private\n     */\n    onHandshake(data) {\n        this.emitReserved(\"handshake\", data);\n        this.id = data.sid;\n        this.transport.query.sid = data.sid;\n        this.upgrades = this.filterUpgrades(data.upgrades);\n        this.pingInterval = data.pingInterval;\n        this.pingTimeout = data.pingTimeout;\n        this.maxPayload = data.maxPayload;\n        this.onOpen();\n        // In case open handler closes socket\n        if (\"closed\" === this.readyState)\n            return;\n        this.resetPingTimeout();\n    }\n    /**\n     * Sets and resets ping timeout timer based on server pings.\n     *\n     * @private\n     */\n    resetPingTimeout() {\n        this.clearTimeoutFn(this.pingTimeoutTimer);\n        this.pingTimeoutTimer = this.setTimeoutFn(() => {\n            this.onClose(\"ping timeout\");\n        }, this.pingInterval + this.pingTimeout);\n        if (this.opts.autoUnref) {\n            this.pingTimeoutTimer.unref();\n        }\n    }\n    /**\n     * Called on `drain` event\n     *\n     * @private\n     */\n    onDrain() {\n        this.writeBuffer.splice(0, this.prevBufferLen);\n        // setting prevBufferLen = 0 is very important\n        // for example, when upgrading, upgrade packet is sent over,\n        // and a nonzero prevBufferLen could cause problems on `drain`\n        this.prevBufferLen = 0;\n        if (0 === this.writeBuffer.length) {\n            this.emitReserved(\"drain\");\n        }\n        else {\n            this.flush();\n        }\n    }\n    /**\n     * Flush write buffers.\n     *\n     * @private\n     */\n    flush() {\n        if (\"closed\" !== this.readyState &&\n            this.transport.writable &&\n            !this.upgrading &&\n            this.writeBuffer.length) {\n            const packets = this.getWritablePackets();\n            this.transport.send(packets);\n            // keep track of current length of writeBuffer\n            // splice writeBuffer and callbackBuffer on `drain`\n            this.prevBufferLen = packets.length;\n            this.emitReserved(\"flush\");\n        }\n    }\n    /**\n     * Ensure the encoded size of the writeBuffer is below the maxPayload value sent by the server (only for HTTP\n     * long-polling)\n     *\n     * @private\n     */\n    getWritablePackets() {\n        const shouldCheckPayloadSize = this.maxPayload &&\n            this.transport.name === \"polling\" &&\n            this.writeBuffer.length > 1;\n        if (!shouldCheckPayloadSize) {\n            return this.writeBuffer;\n        }\n        let payloadSize = 1; // first packet type\n        for (let i = 0; i < this.writeBuffer.length; i++) {\n            const data = this.writeBuffer[i].data;\n            if (data) {\n                payloadSize += byteLength(data);\n            }\n            if (i > 0 && payloadSize > this.maxPayload) {\n                return this.writeBuffer.slice(0, i);\n            }\n            payloadSize += 2; // separator + packet type\n        }\n        return this.writeBuffer;\n    }\n    /**\n     * Sends a message.\n     *\n     * @param {String} msg - message.\n     * @param {Object} options.\n     * @param {Function} callback function.\n     * @return {Socket} for chaining.\n     */\n    write(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    send(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param {String} type: packet type.\n     * @param {String} data.\n     * @param {Object} options.\n     * @param {Function} fn - callback function.\n     * @private\n     */\n    sendPacket(type, data, options, fn) {\n        if (\"function\" === typeof data) {\n            fn = data;\n            data = undefined;\n        }\n        if (\"function\" === typeof options) {\n            fn = options;\n            options = null;\n        }\n        if (\"closing\" === this.readyState || \"closed\" === this.readyState) {\n            return;\n        }\n        options = options || {};\n        options.compress = false !== options.compress;\n        const packet = {\n            type: type,\n            data: data,\n            options: options,\n        };\n        this.emitReserved(\"packetCreate\", packet);\n        this.writeBuffer.push(packet);\n        if (fn)\n            this.once(\"flush\", fn);\n        this.flush();\n    }\n    /**\n     * Closes the connection.\n     */\n    close() {\n        const close = () => {\n            this.onClose(\"forced close\");\n            this.transport.close();\n        };\n        const cleanupAndClose = () => {\n            this.off(\"upgrade\", cleanupAndClose);\n            this.off(\"upgradeError\", cleanupAndClose);\n            close();\n        };\n        const waitForUpgrade = () => {\n            // wait for upgrade to finish since we can't send packets while pausing a transport\n            this.once(\"upgrade\", cleanupAndClose);\n            this.once(\"upgradeError\", cleanupAndClose);\n        };\n        if (\"opening\" === this.readyState || \"open\" === this.readyState) {\n            this.readyState = \"closing\";\n            if (this.writeBuffer.length) {\n                this.once(\"drain\", () => {\n                    if (this.upgrading) {\n                        waitForUpgrade();\n                    }\n                    else {\n                        close();\n                    }\n                });\n            }\n            else if (this.upgrading) {\n                waitForUpgrade();\n            }\n            else {\n                close();\n            }\n        }\n        return this;\n    }\n    /**\n     * Called upon transport error\n     *\n     * @private\n     */\n    onError(err) {\n        Socket.priorWebsocketSuccess = false;\n        this.emitReserved(\"error\", err);\n        this.onClose(\"transport error\", err);\n    }\n    /**\n     * Called upon transport close.\n     *\n     * @private\n     */\n    onClose(reason, description) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            // clear timers\n            this.clearTimeoutFn(this.pingTimeoutTimer);\n            // stop event from firing again for transport\n            this.transport.removeAllListeners(\"close\");\n            // ensure transport won't stay open\n            this.transport.close();\n            // ignore further transport communication\n            this.transport.removeAllListeners();\n            if (typeof removeEventListener === \"function\") {\n                removeEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n                removeEventListener(\"offline\", this.offlineEventListener, false);\n            }\n            // set ready state\n            this.readyState = \"closed\";\n            // clear session id\n            this.id = null;\n            // emit close event\n            this.emitReserved(\"close\", reason, description);\n            // clean buffers after, so users can still\n            // grab the buffers on `close` event\n            this.writeBuffer = [];\n            this.prevBufferLen = 0;\n        }\n    }\n    /**\n     * Filters upgrades, returning only those matching client transports.\n     *\n     * @param {Array} upgrades - server upgrades\n     * @private\n     */\n    filterUpgrades(upgrades) {\n        const filteredUpgrades = [];\n        let i = 0;\n        const j = upgrades.length;\n        for (; i < j; i++) {\n            if (~this.transports.indexOf(upgrades[i]))\n                filteredUpgrades.push(upgrades[i]);\n        }\n        return filteredUpgrades;\n    }\n}\nSocket.protocol = protocol;\n", "import { Socket } from \"./socket.js\";\nexport { Socket };\nexport const protocol = Socket.protocol;\nexport { Transport, TransportError } from \"./transport.js\";\nexport { transports } from \"./transports/index.js\";\nexport { installTimerFunctions } from \"./util.js\";\nexport { parse } from \"./contrib/parseuri.js\";\nexport { nextTick } from \"./transports/websocket-constructor.js\";\n", "import { parse } from \"engine.io-client\";\n/**\n * URL parser.\n *\n * @param uri - url\n * @param path - the request path of the connection\n * @param loc - An object meant to mimic window.location.\n *        Defaults to window.location.\n * @public\n */\nexport function url(uri, path = \"\", loc) {\n    let obj = uri;\n    // default to window.location\n    loc = loc || (typeof location !== \"undefined\" && location);\n    if (null == uri)\n        uri = loc.protocol + \"//\" + loc.host;\n    // relative path support\n    if (typeof uri === \"string\") {\n        if (\"/\" === uri.charAt(0)) {\n            if (\"/\" === uri.charAt(1)) {\n                uri = loc.protocol + uri;\n            }\n            else {\n                uri = loc.host + uri;\n            }\n        }\n        if (!/^(https?|wss?):\\/\\//.test(uri)) {\n            if (\"undefined\" !== typeof loc) {\n                uri = loc.protocol + \"//\" + uri;\n            }\n            else {\n                uri = \"https://\" + uri;\n            }\n        }\n        // parse\n        obj = parse(uri);\n    }\n    // make sure we treat `localhost:80` and `localhost` equally\n    if (!obj.port) {\n        if (/^(http|ws)$/.test(obj.protocol)) {\n            obj.port = \"80\";\n        }\n        else if (/^(http|ws)s$/.test(obj.protocol)) {\n            obj.port = \"443\";\n        }\n    }\n    obj.path = obj.path || \"/\";\n    const ipv6 = obj.host.indexOf(\":\") !== -1;\n    const host = ipv6 ? \"[\" + obj.host + \"]\" : obj.host;\n    // define unique id\n    obj.id = obj.protocol + \"://\" + host + \":\" + obj.port + path;\n    // define href\n    obj.href =\n        obj.protocol +\n            \"://\" +\n            host +\n            (loc && loc.port === obj.port ? \"\" : \":\" + obj.port);\n    return obj;\n}\n", "import { Emitter } from \"@socket.io/component-emitter\";\nimport { deconstructPacket, reconstructPacket } from \"./binary.js\";\nimport { isBinary, hasBinary } from \"./is-binary.js\";\n/**\n * These strings must not be used as event names, as they have a special meaning.\n */\nconst RESERVED_EVENTS = [\n    \"connect\",\n    \"connect_error\",\n    \"disconnect\",\n    \"disconnecting\",\n    \"newListener\",\n    \"removeListener\", // used by the Node.js EventEmitter\n];\n/**\n * Protocol version.\n *\n * @public\n */\nexport const protocol = 5;\nexport var PacketType;\n(function (PacketType) {\n    PacketType[PacketType[\"CONNECT\"] = 0] = \"CONNECT\";\n    PacketType[PacketType[\"DISCONNECT\"] = 1] = \"DISCONNECT\";\n    PacketType[PacketType[\"EVENT\"] = 2] = \"EVENT\";\n    PacketType[PacketType[\"ACK\"] = 3] = \"ACK\";\n    PacketType[PacketType[\"CONNECT_ERROR\"] = 4] = \"CONNECT_ERROR\";\n    PacketType[PacketType[\"BINARY_EVENT\"] = 5] = \"BINARY_EVENT\";\n    PacketType[PacketType[\"BINARY_ACK\"] = 6] = \"BINARY_ACK\";\n})(PacketType || (PacketType = {}));\n/**\n * A socket.io Encoder instance\n */\nexport class Encoder {\n    /**\n     * Encoder constructor\n     *\n     * @param {function} replacer - custom replacer to pass down to JSON.parse\n     */\n    constructor(replacer) {\n        this.replacer = replacer;\n    }\n    /**\n     * Encode a packet as a single string if non-binary, or as a\n     * buffer sequence, depending on packet type.\n     *\n     * @param {Object} obj - packet object\n     */\n    encode(obj) {\n        if (obj.type === PacketType.EVENT || obj.type === PacketType.ACK) {\n            if (hasBinary(obj)) {\n                return this.encodeAsBinary({\n                    type: obj.type === PacketType.EVENT\n                        ? PacketType.BINARY_EVENT\n                        : PacketType.BINARY_ACK,\n                    nsp: obj.nsp,\n                    data: obj.data,\n                    id: obj.id,\n                });\n            }\n        }\n        return [this.encodeAsString(obj)];\n    }\n    /**\n     * Encode packet as string.\n     */\n    encodeAsString(obj) {\n        // first is type\n        let str = \"\" + obj.type;\n        // attachments if we have them\n        if (obj.type === PacketType.BINARY_EVENT ||\n            obj.type === PacketType.BINARY_ACK) {\n            str += obj.attachments + \"-\";\n        }\n        // if we have a namespace other than `/`\n        // we append it followed by a comma `,`\n        if (obj.nsp && \"/\" !== obj.nsp) {\n            str += obj.nsp + \",\";\n        }\n        // immediately followed by the id\n        if (null != obj.id) {\n            str += obj.id;\n        }\n        // json data\n        if (null != obj.data) {\n            str += JSON.stringify(obj.data, this.replacer);\n        }\n        return str;\n    }\n    /**\n     * Encode packet as 'buffer sequence' by removing blobs, and\n     * deconstructing packet into object with placeholders and\n     * a list of buffers.\n     */\n    encodeAsBinary(obj) {\n        const deconstruction = deconstructPacket(obj);\n        const pack = this.encodeAsString(deconstruction.packet);\n        const buffers = deconstruction.buffers;\n        buffers.unshift(pack); // add packet info to beginning of data list\n        return buffers; // write all the buffers\n    }\n}\n// see https://stackoverflow.com/questions/8511281/check-if-a-value-is-an-object-in-javascript\nfunction isObject(value) {\n    return Object.prototype.toString.call(value) === \"[object Object]\";\n}\n/**\n * A socket.io Decoder instance\n *\n * @return {Object} decoder\n */\nexport class Decoder extends Emitter {\n    /**\n     * Decoder constructor\n     *\n     * @param {function} reviver - custom reviver to pass down to JSON.stringify\n     */\n    constructor(reviver) {\n        super();\n        this.reviver = reviver;\n    }\n    /**\n     * Decodes an encoded packet string into packet JSON.\n     *\n     * @param {String} obj - encoded packet\n     */\n    add(obj) {\n        let packet;\n        if (typeof obj === \"string\") {\n            if (this.reconstructor) {\n                throw new Error(\"got plaintext data when reconstructing a packet\");\n            }\n            packet = this.decodeString(obj);\n            const isBinaryEvent = packet.type === PacketType.BINARY_EVENT;\n            if (isBinaryEvent || packet.type === PacketType.BINARY_ACK) {\n                packet.type = isBinaryEvent ? PacketType.EVENT : PacketType.ACK;\n                // binary packet's json\n                this.reconstructor = new BinaryReconstructor(packet);\n                // no attachments, labeled binary but no binary data to follow\n                if (packet.attachments === 0) {\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n            else {\n                // non-binary full packet\n                super.emitReserved(\"decoded\", packet);\n            }\n        }\n        else if (isBinary(obj) || obj.base64) {\n            // raw binary data\n            if (!this.reconstructor) {\n                throw new Error(\"got binary data when not reconstructing a packet\");\n            }\n            else {\n                packet = this.reconstructor.takeBinaryData(obj);\n                if (packet) {\n                    // received final buffer\n                    this.reconstructor = null;\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n        }\n        else {\n            throw new Error(\"Unknown type: \" + obj);\n        }\n    }\n    /**\n     * Decode a packet String (JSON data)\n     *\n     * @param {String} str\n     * @return {Object} packet\n     */\n    decodeString(str) {\n        let i = 0;\n        // look up type\n        const p = {\n            type: Number(str.charAt(0)),\n        };\n        if (PacketType[p.type] === undefined) {\n            throw new Error(\"unknown packet type \" + p.type);\n        }\n        // look up attachments if type binary\n        if (p.type === PacketType.BINARY_EVENT ||\n            p.type === PacketType.BINARY_ACK) {\n            const start = i + 1;\n            while (str.charAt(++i) !== \"-\" && i != str.length) { }\n            const buf = str.substring(start, i);\n            if (buf != Number(buf) || str.charAt(i) !== \"-\") {\n                throw new Error(\"Illegal attachments\");\n            }\n            p.attachments = Number(buf);\n        }\n        // look up namespace (if any)\n        if (\"/\" === str.charAt(i + 1)) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (\",\" === c)\n                    break;\n                if (i === str.length)\n                    break;\n            }\n            p.nsp = str.substring(start, i);\n        }\n        else {\n            p.nsp = \"/\";\n        }\n        // look up id\n        const next = str.charAt(i + 1);\n        if (\"\" !== next && Number(next) == next) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (null == c || Number(c) != c) {\n                    --i;\n                    break;\n                }\n                if (i === str.length)\n                    break;\n            }\n            p.id = Number(str.substring(start, i + 1));\n        }\n        // look up json data\n        if (str.charAt(++i)) {\n            const payload = this.tryParse(str.substr(i));\n            if (Decoder.isPayloadValid(p.type, payload)) {\n                p.data = payload;\n            }\n            else {\n                throw new Error(\"invalid payload\");\n            }\n        }\n        return p;\n    }\n    tryParse(str) {\n        try {\n            return JSON.parse(str, this.reviver);\n        }\n        catch (e) {\n            return false;\n        }\n    }\n    static isPayloadValid(type, payload) {\n        switch (type) {\n            case PacketType.CONNECT:\n                return isObject(payload);\n            case PacketType.DISCONNECT:\n                return payload === undefined;\n            case PacketType.CONNECT_ERROR:\n                return typeof payload === \"string\" || isObject(payload);\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                return (Array.isArray(payload) &&\n                    (typeof payload[0] === \"number\" ||\n                        (typeof payload[0] === \"string\" &&\n                            RESERVED_EVENTS.indexOf(payload[0]) === -1)));\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                return Array.isArray(payload);\n        }\n    }\n    /**\n     * Deallocates a parser's resources\n     */\n    destroy() {\n        if (this.reconstructor) {\n            this.reconstructor.finishedReconstruction();\n            this.reconstructor = null;\n        }\n    }\n}\n/**\n * A manager of a binary event's 'buffer sequence'. Should\n * be constructed whenever a packet of type BINARY_EVENT is\n * decoded.\n *\n * @param {Object} packet\n * @return {BinaryReconstructor} initialized reconstructor\n */\nclass BinaryReconstructor {\n    constructor(packet) {\n        this.packet = packet;\n        this.buffers = [];\n        this.reconPack = packet;\n    }\n    /**\n     * Method to be called when binary data received from connection\n     * after a BINARY_EVENT packet.\n     *\n     * @param {Buffer | ArrayBuffer} binData - the raw binary data received\n     * @return {null | Object} returns null if more binary data is expected or\n     *   a reconstructed packet object if all buffers have been received.\n     */\n    takeBinaryData(binData) {\n        this.buffers.push(binData);\n        if (this.buffers.length === this.reconPack.attachments) {\n            // done with buffer list\n            const packet = reconstructPacket(this.reconPack, this.buffers);\n            this.finishedReconstruction();\n            return packet;\n        }\n        return null;\n    }\n    /**\n     * Cleans up binary packet reconstruction variables.\n     */\n    finishedReconstruction() {\n        this.reconPack = null;\n        this.buffers = [];\n    }\n}\n", "const withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nconst isView = (obj) => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj.buffer instanceof ArrayBuffer;\n};\nconst toString = Object.prototype.toString;\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeFile = typeof File === \"function\" ||\n    (typeof File !== \"undefined\" &&\n        toString.call(File) === \"[object FileConstructor]\");\n/**\n * Returns true if obj is a Buffer, an ArrayBuffer, a Blob or a File.\n *\n * @private\n */\nexport function isBinary(obj) {\n    return ((withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj))) ||\n        (withNativeBlob && obj instanceof Blob) ||\n        (withNativeFile && obj instanceof File));\n}\nexport function hasBinary(obj, toJSON) {\n    if (!obj || typeof obj !== \"object\") {\n        return false;\n    }\n    if (Array.isArray(obj)) {\n        for (let i = 0, l = obj.length; i < l; i++) {\n            if (hasBinary(obj[i])) {\n                return true;\n            }\n        }\n        return false;\n    }\n    if (isBinary(obj)) {\n        return true;\n    }\n    if (obj.toJSON &&\n        typeof obj.toJSON === \"function\" &&\n        arguments.length === 1) {\n        return hasBinary(obj.toJSON(), true);\n    }\n    for (const key in obj) {\n        if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {\n            return true;\n        }\n    }\n    return false;\n}\n", "import { isBinary } from \"./is-binary.js\";\n/**\n * Replaces every Buffer | ArrayBuffer | Blob | File in packet with a numbered placeholder.\n *\n * @param {Object} packet - socket.io event packet\n * @return {Object} with deconstructed packet and list of buffers\n * @public\n */\nexport function deconstructPacket(packet) {\n    const buffers = [];\n    const packetData = packet.data;\n    const pack = packet;\n    pack.data = _deconstructPacket(packetData, buffers);\n    pack.attachments = buffers.length; // number of binary 'attachments'\n    return { packet: pack, buffers: buffers };\n}\nfunction _deconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (isBinary(data)) {\n        const placeholder = { _placeholder: true, num: buffers.length };\n        buffers.push(data);\n        return placeholder;\n    }\n    else if (Array.isArray(data)) {\n        const newData = new Array(data.length);\n        for (let i = 0; i < data.length; i++) {\n            newData[i] = _deconstructPacket(data[i], buffers);\n        }\n        return newData;\n    }\n    else if (typeof data === \"object\" && !(data instanceof Date)) {\n        const newData = {};\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                newData[key] = _deconstructPacket(data[key], buffers);\n            }\n        }\n        return newData;\n    }\n    return data;\n}\n/**\n * Reconstructs a binary packet from its placeholder packet and buffers\n *\n * @param {Object} packet - event packet with placeholders\n * @param {Array} buffers - binary buffers to put in placeholder positions\n * @return {Object} reconstructed packet\n * @public\n */\nexport function reconstructPacket(packet, buffers) {\n    packet.data = _reconstructPacket(packet.data, buffers);\n    delete packet.attachments; // no longer useful\n    return packet;\n}\nfunction _reconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (data && data._placeholder === true) {\n        const isIndexValid = typeof data.num === \"number\" &&\n            data.num >= 0 &&\n            data.num < buffers.length;\n        if (isIndexValid) {\n            return buffers[data.num]; // appropriate buffer (should be natural order anyway)\n        }\n        else {\n            throw new Error(\"illegal attachments\");\n        }\n    }\n    else if (Array.isArray(data)) {\n        for (let i = 0; i < data.length; i++) {\n            data[i] = _reconstructPacket(data[i], buffers);\n        }\n    }\n    else if (typeof data === \"object\") {\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                data[key] = _reconstructPacket(data[key], buffers);\n            }\n        }\n    }\n    return data;\n}\n", "export function on(obj, ev, fn) {\n    obj.on(ev, fn);\n    return function subDestroy() {\n        obj.off(ev, fn);\n    };\n}\n", "import { PacketType } from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\n/**\n * Internal events.\n * These events can't be emitted by the user.\n */\nconst RESERVED_EVENTS = Object.freeze({\n    connect: 1,\n    connect_error: 1,\n    disconnect: 1,\n    disconnecting: 1,\n    // EventEmitter reserved events: https://nodejs.org/api/events.html#events_event_newlistener\n    newListener: 1,\n    removeListener: 1,\n});\n/**\n * A Socket is the fundamental class for interacting with the server.\n *\n * A Socket belongs to a certain Namespace (by default /) and uses an underlying {@link Manager} to communicate.\n *\n * @example\n * const socket = io();\n *\n * socket.on(\"connect\", () => {\n *   console.log(\"connected\");\n * });\n *\n * // send an event to the server\n * socket.emit(\"foo\", \"bar\");\n *\n * socket.on(\"foobar\", () => {\n *   // an event was received from the server\n * });\n *\n * // upon disconnection\n * socket.on(\"disconnect\", (reason) => {\n *   console.log(`disconnected due to ${reason}`);\n * });\n */\nexport class Socket extends Emitter {\n    /**\n     * `Socket` constructor.\n     */\n    constructor(io, nsp, opts) {\n        super();\n        /**\n         * Whether the socket is currently connected to the server.\n         *\n         * @example\n         * const socket = io();\n         *\n         * socket.on(\"connect\", () => {\n         *   console.log(socket.connected); // true\n         * });\n         *\n         * socket.on(\"disconnect\", () => {\n         *   console.log(socket.connected); // false\n         * });\n         */\n        this.connected = false;\n        /**\n         * Whether the connection state was recovered after a temporary disconnection. In that case, any missed packets will\n         * be transmitted by the server.\n         */\n        this.recovered = false;\n        /**\n         * Buffer for packets received before the CONNECT packet\n         */\n        this.receiveBuffer = [];\n        /**\n         * Buffer for packets that will be sent once the socket is connected\n         */\n        this.sendBuffer = [];\n        /**\n         * The queue of packets to be sent with retry in case of failure.\n         *\n         * Packets are sent one by one, each waiting for the server acknowledgement, in order to guarantee the delivery order.\n         * @private\n         */\n        this._queue = [];\n        /**\n         * A sequence to generate the ID of the {@link QueuedPacket}.\n         * @private\n         */\n        this._queueSeq = 0;\n        this.ids = 0;\n        this.acks = {};\n        this.flags = {};\n        this.io = io;\n        this.nsp = nsp;\n        if (opts && opts.auth) {\n            this.auth = opts.auth;\n        }\n        this._opts = Object.assign({}, opts);\n        if (this.io._autoConnect)\n            this.open();\n    }\n    /**\n     * Whether the socket is currently disconnected\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"connect\", () => {\n     *   console.log(socket.disconnected); // false\n     * });\n     *\n     * socket.on(\"disconnect\", () => {\n     *   console.log(socket.disconnected); // true\n     * });\n     */\n    get disconnected() {\n        return !this.connected;\n    }\n    /**\n     * Subscribe to open, close and packet events\n     *\n     * @private\n     */\n    subEvents() {\n        if (this.subs)\n            return;\n        const io = this.io;\n        this.subs = [\n            on(io, \"open\", this.onopen.bind(this)),\n            on(io, \"packet\", this.onpacket.bind(this)),\n            on(io, \"error\", this.onerror.bind(this)),\n            on(io, \"close\", this.onclose.bind(this)),\n        ];\n    }\n    /**\n     * Whether the Socket will try to reconnect when its Manager connects or reconnects.\n     *\n     * @example\n     * const socket = io();\n     *\n     * console.log(socket.active); // true\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   if (reason === \"io server disconnect\") {\n     *     // the disconnection was initiated by the server, you need to manually reconnect\n     *     console.log(socket.active); // false\n     *   }\n     *   // else the socket will automatically try to reconnect\n     *   console.log(socket.active); // true\n     * });\n     */\n    get active() {\n        return !!this.subs;\n    }\n    /**\n     * \"Opens\" the socket.\n     *\n     * @example\n     * const socket = io({\n     *   autoConnect: false\n     * });\n     *\n     * socket.connect();\n     */\n    connect() {\n        if (this.connected)\n            return this;\n        this.subEvents();\n        if (!this.io[\"_reconnecting\"])\n            this.io.open(); // ensure open\n        if (\"open\" === this.io._readyState)\n            this.onopen();\n        return this;\n    }\n    /**\n     * Alias for {@link connect()}.\n     */\n    open() {\n        return this.connect();\n    }\n    /**\n     * Sends a `message` event.\n     *\n     * This method mimics the WebSocket.send() method.\n     *\n     * @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send\n     *\n     * @example\n     * socket.send(\"hello\");\n     *\n     * // this is equivalent to\n     * socket.emit(\"message\", \"hello\");\n     *\n     * @return self\n     */\n    send(...args) {\n        args.unshift(\"message\");\n        this.emit.apply(this, args);\n        return this;\n    }\n    /**\n     * Override `emit`.\n     * If the event is in `events`, it's emitted normally.\n     *\n     * @example\n     * socket.emit(\"hello\", \"world\");\n     *\n     * // all serializable datastructures are supported (no need to call JSON.stringify)\n     * socket.emit(\"hello\", 1, \"2\", { 3: [\"4\"], 5: Uint8Array.from([6]) });\n     *\n     * // with an acknowledgement from the server\n     * socket.emit(\"hello\", \"world\", (val) => {\n     *   // ...\n     * });\n     *\n     * @return self\n     */\n    emit(ev, ...args) {\n        if (RESERVED_EVENTS.hasOwnProperty(ev)) {\n            throw new Error('\"' + ev.toString() + '\" is a reserved event name');\n        }\n        args.unshift(ev);\n        if (this._opts.retries && !this.flags.fromQueue && !this.flags.volatile) {\n            this._addToQueue(args);\n            return this;\n        }\n        const packet = {\n            type: PacketType.EVENT,\n            data: args,\n        };\n        packet.options = {};\n        packet.options.compress = this.flags.compress !== false;\n        // event ack callback\n        if (\"function\" === typeof args[args.length - 1]) {\n            const id = this.ids++;\n            const ack = args.pop();\n            this._registerAckCallback(id, ack);\n            packet.id = id;\n        }\n        const isTransportWritable = this.io.engine &&\n            this.io.engine.transport &&\n            this.io.engine.transport.writable;\n        const discardPacket = this.flags.volatile && (!isTransportWritable || !this.connected);\n        if (discardPacket) {\n        }\n        else if (this.connected) {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        }\n        else {\n            this.sendBuffer.push(packet);\n        }\n        this.flags = {};\n        return this;\n    }\n    /**\n     * @private\n     */\n    _registerAckCallback(id, ack) {\n        var _a;\n        const timeout = (_a = this.flags.timeout) !== null && _a !== void 0 ? _a : this._opts.ackTimeout;\n        if (timeout === undefined) {\n            this.acks[id] = ack;\n            return;\n        }\n        // @ts-ignore\n        const timer = this.io.setTimeoutFn(() => {\n            delete this.acks[id];\n            for (let i = 0; i < this.sendBuffer.length; i++) {\n                if (this.sendBuffer[i].id === id) {\n                    this.sendBuffer.splice(i, 1);\n                }\n            }\n            ack.call(this, new Error(\"operation has timed out\"));\n        }, timeout);\n        this.acks[id] = (...args) => {\n            // @ts-ignore\n            this.io.clearTimeoutFn(timer);\n            ack.apply(this, [null, ...args]);\n        };\n    }\n    /**\n     * Emits an event and waits for an acknowledgement\n     *\n     * @example\n     * // without timeout\n     * const response = await socket.emitWithAck(\"hello\", \"world\");\n     *\n     * // with a specific timeout\n     * try {\n     *   const response = await socket.timeout(1000).emitWithAck(\"hello\", \"world\");\n     * } catch (err) {\n     *   // the server did not acknowledge the event in the given delay\n     * }\n     *\n     * @return a Promise that will be fulfilled when the server acknowledges the event\n     */\n    emitWithAck(ev, ...args) {\n        // the timeout flag is optional\n        const withErr = this.flags.timeout !== undefined || this._opts.ackTimeout !== undefined;\n        return new Promise((resolve, reject) => {\n            args.push((arg1, arg2) => {\n                if (withErr) {\n                    return arg1 ? reject(arg1) : resolve(arg2);\n                }\n                else {\n                    return resolve(arg1);\n                }\n            });\n            this.emit(ev, ...args);\n        });\n    }\n    /**\n     * Add the packet to the queue.\n     * @param args\n     * @private\n     */\n    _addToQueue(args) {\n        let ack;\n        if (typeof args[args.length - 1] === \"function\") {\n            ack = args.pop();\n        }\n        const packet = {\n            id: this._queueSeq++,\n            tryCount: 0,\n            pending: false,\n            args,\n            flags: Object.assign({ fromQueue: true }, this.flags),\n        };\n        args.push((err, ...responseArgs) => {\n            if (packet !== this._queue[0]) {\n                // the packet has already been acknowledged\n                return;\n            }\n            const hasError = err !== null;\n            if (hasError) {\n                if (packet.tryCount > this._opts.retries) {\n                    this._queue.shift();\n                    if (ack) {\n                        ack(err);\n                    }\n                }\n            }\n            else {\n                this._queue.shift();\n                if (ack) {\n                    ack(null, ...responseArgs);\n                }\n            }\n            packet.pending = false;\n            return this._drainQueue();\n        });\n        this._queue.push(packet);\n        this._drainQueue();\n    }\n    /**\n     * Send the first packet of the queue, and wait for an acknowledgement from the server.\n     * @param force - whether to resend a packet that has not been acknowledged yet\n     *\n     * @private\n     */\n    _drainQueue(force = false) {\n        if (!this.connected || this._queue.length === 0) {\n            return;\n        }\n        const packet = this._queue[0];\n        if (packet.pending && !force) {\n            return;\n        }\n        packet.pending = true;\n        packet.tryCount++;\n        this.flags = packet.flags;\n        this.emit.apply(this, packet.args);\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param packet\n     * @private\n     */\n    packet(packet) {\n        packet.nsp = this.nsp;\n        this.io._packet(packet);\n    }\n    /**\n     * Called upon engine `open`.\n     *\n     * @private\n     */\n    onopen() {\n        if (typeof this.auth == \"function\") {\n            this.auth((data) => {\n                this._sendConnectPacket(data);\n            });\n        }\n        else {\n            this._sendConnectPacket(this.auth);\n        }\n    }\n    /**\n     * Sends a CONNECT packet to initiate the Socket.IO session.\n     *\n     * @param data\n     * @private\n     */\n    _sendConnectPacket(data) {\n        this.packet({\n            type: PacketType.CONNECT,\n            data: this._pid\n                ? Object.assign({ pid: this._pid, offset: this._lastOffset }, data)\n                : data,\n        });\n    }\n    /**\n     * Called upon engine or manager `error`.\n     *\n     * @param err\n     * @private\n     */\n    onerror(err) {\n        if (!this.connected) {\n            this.emitReserved(\"connect_error\", err);\n        }\n    }\n    /**\n     * Called upon engine `close`.\n     *\n     * @param reason\n     * @param description\n     * @private\n     */\n    onclose(reason, description) {\n        this.connected = false;\n        delete this.id;\n        this.emitReserved(\"disconnect\", reason, description);\n    }\n    /**\n     * Called with socket packet.\n     *\n     * @param packet\n     * @private\n     */\n    onpacket(packet) {\n        const sameNamespace = packet.nsp === this.nsp;\n        if (!sameNamespace)\n            return;\n        switch (packet.type) {\n            case PacketType.CONNECT:\n                if (packet.data && packet.data.sid) {\n                    this.onconnect(packet.data.sid, packet.data.pid);\n                }\n                else {\n                    this.emitReserved(\"connect_error\", new Error(\"It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)\"));\n                }\n                break;\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                this.onevent(packet);\n                break;\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                this.onack(packet);\n                break;\n            case PacketType.DISCONNECT:\n                this.ondisconnect();\n                break;\n            case PacketType.CONNECT_ERROR:\n                this.destroy();\n                const err = new Error(packet.data.message);\n                // @ts-ignore\n                err.data = packet.data.data;\n                this.emitReserved(\"connect_error\", err);\n                break;\n        }\n    }\n    /**\n     * Called upon a server event.\n     *\n     * @param packet\n     * @private\n     */\n    onevent(packet) {\n        const args = packet.data || [];\n        if (null != packet.id) {\n            args.push(this.ack(packet.id));\n        }\n        if (this.connected) {\n            this.emitEvent(args);\n        }\n        else {\n            this.receiveBuffer.push(Object.freeze(args));\n        }\n    }\n    emitEvent(args) {\n        if (this._anyListeners && this._anyListeners.length) {\n            const listeners = this._anyListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, args);\n            }\n        }\n        super.emit.apply(this, args);\n        if (this._pid && args.length && typeof args[args.length - 1] === \"string\") {\n            this._lastOffset = args[args.length - 1];\n        }\n    }\n    /**\n     * Produces an ack callback to emit with an event.\n     *\n     * @private\n     */\n    ack(id) {\n        const self = this;\n        let sent = false;\n        return function (...args) {\n            // prevent double callbacks\n            if (sent)\n                return;\n            sent = true;\n            self.packet({\n                type: PacketType.ACK,\n                id: id,\n                data: args,\n            });\n        };\n    }\n    /**\n     * Called upon a server acknowlegement.\n     *\n     * @param packet\n     * @private\n     */\n    onack(packet) {\n        const ack = this.acks[packet.id];\n        if (\"function\" === typeof ack) {\n            ack.apply(this, packet.data);\n            delete this.acks[packet.id];\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon server connect.\n     *\n     * @private\n     */\n    onconnect(id, pid) {\n        this.id = id;\n        this.recovered = pid && this._pid === pid;\n        this._pid = pid; // defined only if connection state recovery is enabled\n        this.connected = true;\n        this.emitBuffered();\n        this.emitReserved(\"connect\");\n        this._drainQueue(true);\n    }\n    /**\n     * Emit buffered events (received and emitted).\n     *\n     * @private\n     */\n    emitBuffered() {\n        this.receiveBuffer.forEach((args) => this.emitEvent(args));\n        this.receiveBuffer = [];\n        this.sendBuffer.forEach((packet) => {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        });\n        this.sendBuffer = [];\n    }\n    /**\n     * Called upon server disconnect.\n     *\n     * @private\n     */\n    ondisconnect() {\n        this.destroy();\n        this.onclose(\"io server disconnect\");\n    }\n    /**\n     * Called upon forced client/server side disconnections,\n     * this method ensures the manager stops tracking us and\n     * that reconnections don't get triggered for this.\n     *\n     * @private\n     */\n    destroy() {\n        if (this.subs) {\n            // clean subscriptions to avoid reconnections\n            this.subs.forEach((subDestroy) => subDestroy());\n            this.subs = undefined;\n        }\n        this.io[\"_destroy\"](this);\n    }\n    /**\n     * Disconnects the socket manually. In that case, the socket will not try to reconnect.\n     *\n     * If this is the last active Socket instance of the {@link Manager}, the low-level connection will be closed.\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   // console.log(reason); prints \"io client disconnect\"\n     * });\n     *\n     * socket.disconnect();\n     *\n     * @return self\n     */\n    disconnect() {\n        if (this.connected) {\n            this.packet({ type: PacketType.DISCONNECT });\n        }\n        // remove socket from pool\n        this.destroy();\n        if (this.connected) {\n            // fire events\n            this.onclose(\"io client disconnect\");\n        }\n        return this;\n    }\n    /**\n     * Alias for {@link disconnect()}.\n     *\n     * @return self\n     */\n    close() {\n        return this.disconnect();\n    }\n    /**\n     * Sets the compress flag.\n     *\n     * @example\n     * socket.compress(false).emit(\"hello\");\n     *\n     * @param compress - if `true`, compresses the sending data\n     * @return self\n     */\n    compress(compress) {\n        this.flags.compress = compress;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the event message will be dropped when this socket is not\n     * ready to send messages.\n     *\n     * @example\n     * socket.volatile.emit(\"hello\"); // the server may or may not receive it\n     *\n     * @returns self\n     */\n    get volatile() {\n        this.flags.volatile = true;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the callback will be called with an error when the\n     * given number of milliseconds have elapsed without an acknowledgement from the server:\n     *\n     * @example\n     * socket.timeout(5000).emit(\"my-event\", (err) => {\n     *   if (err) {\n     *     // the server did not acknowledge the event in the given delay\n     *   }\n     * });\n     *\n     * @returns self\n     */\n    timeout(timeout) {\n        this.flags.timeout = timeout;\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * @example\n     * socket.onAny((event, ...args) => {\n     *   console.log(`got ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * @example\n     * socket.prependAny((event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * }\n     *\n     * socket.onAny(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAny(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAny();\n     *\n     * @param listener\n     */\n    offAny(listener) {\n        if (!this._anyListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAny() {\n        return this._anyListeners || [];\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.onAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.prependAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * }\n     *\n     * socket.onAnyOutgoing(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAnyOutgoing(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAnyOutgoing();\n     *\n     * @param [listener] - the catch-all listener (optional)\n     */\n    offAnyOutgoing(listener) {\n        if (!this._anyOutgoingListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyOutgoingListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyOutgoingListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAnyOutgoing() {\n        return this._anyOutgoingListeners || [];\n    }\n    /**\n     * Notify the listeners for each packet sent\n     *\n     * @param packet\n     *\n     * @private\n     */\n    notifyOutgoingListeners(packet) {\n        if (this._anyOutgoingListeners && this._anyOutgoingListeners.length) {\n            const listeners = this._anyOutgoingListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, packet.data);\n            }\n        }\n    }\n}\n", "/**\n * Initialize backoff timer with `opts`.\n *\n * - `min` initial timeout in milliseconds [100]\n * - `max` max timeout [10000]\n * - `jitter` [0]\n * - `factor` [2]\n *\n * @param {Object} opts\n * @api public\n */\nexport function Backoff(opts) {\n    opts = opts || {};\n    this.ms = opts.min || 100;\n    this.max = opts.max || 10000;\n    this.factor = opts.factor || 2;\n    this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;\n    this.attempts = 0;\n}\n/**\n * Return the backoff duration.\n *\n * @return {Number}\n * @api public\n */\nBackoff.prototype.duration = function () {\n    var ms = this.ms * Math.pow(this.factor, this.attempts++);\n    if (this.jitter) {\n        var rand = Math.random();\n        var deviation = Math.floor(rand * this.jitter * ms);\n        ms = (Math.floor(rand * 10) & 1) == 0 ? ms - deviation : ms + deviation;\n    }\n    return Math.min(ms, this.max) | 0;\n};\n/**\n * Reset the number of attempts.\n *\n * @api public\n */\nBackoff.prototype.reset = function () {\n    this.attempts = 0;\n};\n/**\n * Set the minimum duration\n *\n * @api public\n */\nBackoff.prototype.setMin = function (min) {\n    this.ms = min;\n};\n/**\n * Set the maximum duration\n *\n * @api public\n */\nBackoff.prototype.setMax = function (max) {\n    this.max = max;\n};\n/**\n * Set the jitter\n *\n * @api public\n */\nBackoff.prototype.setJitter = function (jitter) {\n    this.jitter = jitter;\n};\n", "import { Socket as Engine, installTimerFunctions, nextTick, } from \"engine.io-client\";\nimport { Socket } from \"./socket.js\";\nimport * as parser from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Backoff } from \"./contrib/backo2.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\nexport class Manager extends Emitter {\n    constructor(uri, opts) {\n        var _a;\n        super();\n        this.nsps = {};\n        this.subs = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = undefined;\n        }\n        opts = opts || {};\n        opts.path = opts.path || \"/socket.io\";\n        this.opts = opts;\n        installTimerFunctions(this, opts);\n        this.reconnection(opts.reconnection !== false);\n        this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);\n        this.reconnectionDelay(opts.reconnectionDelay || 1000);\n        this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);\n        this.randomizationFactor((_a = opts.randomizationFactor) !== null && _a !== void 0 ? _a : 0.5);\n        this.backoff = new Backoff({\n            min: this.reconnectionDelay(),\n            max: this.reconnectionDelayMax(),\n            jitter: this.randomizationFactor(),\n        });\n        this.timeout(null == opts.timeout ? 20000 : opts.timeout);\n        this._readyState = \"closed\";\n        this.uri = uri;\n        const _parser = opts.parser || parser;\n        this.encoder = new _parser.Encoder();\n        this.decoder = new _parser.Decoder();\n        this._autoConnect = opts.autoConnect !== false;\n        if (this._autoConnect)\n            this.open();\n    }\n    reconnection(v) {\n        if (!arguments.length)\n            return this._reconnection;\n        this._reconnection = !!v;\n        return this;\n    }\n    reconnectionAttempts(v) {\n        if (v === undefined)\n            return this._reconnectionAttempts;\n        this._reconnectionAttempts = v;\n        return this;\n    }\n    reconnectionDelay(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelay;\n        this._reconnectionDelay = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMin(v);\n        return this;\n    }\n    randomizationFactor(v) {\n        var _a;\n        if (v === undefined)\n            return this._randomizationFactor;\n        this._randomizationFactor = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setJitter(v);\n        return this;\n    }\n    reconnectionDelayMax(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelayMax;\n        this._reconnectionDelayMax = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMax(v);\n        return this;\n    }\n    timeout(v) {\n        if (!arguments.length)\n            return this._timeout;\n        this._timeout = v;\n        return this;\n    }\n    /**\n     * Starts trying to reconnect if reconnection is enabled and we have not\n     * started reconnecting yet\n     *\n     * @private\n     */\n    maybeReconnectOnOpen() {\n        // Only try to reconnect if it's the first time we're connecting\n        if (!this._reconnecting &&\n            this._reconnection &&\n            this.backoff.attempts === 0) {\n            // keeps reconnection from firing twice for the same reconnection loop\n            this.reconnect();\n        }\n    }\n    /**\n     * Sets the current transport `socket`.\n     *\n     * @param {Function} fn - optional, callback\n     * @return self\n     * @public\n     */\n    open(fn) {\n        if (~this._readyState.indexOf(\"open\"))\n            return this;\n        this.engine = new Engine(this.uri, this.opts);\n        const socket = this.engine;\n        const self = this;\n        this._readyState = \"opening\";\n        this.skipReconnect = false;\n        // emit `open`\n        const openSubDestroy = on(socket, \"open\", function () {\n            self.onopen();\n            fn && fn();\n        });\n        const onError = (err) => {\n            this.cleanup();\n            this._readyState = \"closed\";\n            this.emitReserved(\"error\", err);\n            if (fn) {\n                fn(err);\n            }\n            else {\n                // Only do this if there is no fn to handle the error\n                this.maybeReconnectOnOpen();\n            }\n        };\n        // emit `error`\n        const errorSub = on(socket, \"error\", onError);\n        if (false !== this._timeout) {\n            const timeout = this._timeout;\n            // set timer\n            const timer = this.setTimeoutFn(() => {\n                openSubDestroy();\n                onError(new Error(\"timeout\"));\n                socket.close();\n   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on(this.decoder, \"decoded\", this.ondecoded.bind(this)));\n    }\n    /**\n     * Called upon a ping.\n     *\n     * @private\n     */\n    onping() {\n        this.emitReserved(\"ping\");\n    }\n    /**\n     * Called with data.\n     *\n     * @private\n     */\n    ondata(data) {\n        try {\n            this.decoder.add(data);\n        }\n        catch (e) {\n            this.onclose(\"parse error\", e);\n        }\n    }\n    /**\n     * Called when parser fully decodes a packet.\n     *\n     * @private\n     */\n    ondecoded(packet) {\n        // the nextTick call prevents an exception in a user-provided event listener from triggering a disconnection due to a \"parse error\"\n        nextTick(() => {\n            this.emitReserved(\"packet\", packet);\n        }, this.setTimeoutFn);\n    }\n    /**\n     * Called upon socket error.\n     *\n     * @private\n     */\n    onerror(err) {\n        this.emitReserved(\"error\", err);\n    }\n    /**\n     * Creates a new socket for the given `nsp`.\n     *\n     * @return {Socket}\n     * @public\n     */\n    socket(nsp, opts) {\n        let socket = this.nsps[nsp];\n        if (!socket) {\n            socket = new Socket(this, nsp, opts);\n            this.nsps[nsp] = socket;\n        }\n        else if (this._autoConnect && !socket.active) {\n            socket.connect();\n        }\n        return socket;\n    }\n    /**\n     * Called upon a socket close.\n     *\n     * @param socket\n     * @private\n     */\n    _destroy(socket) {\n        const nsps = Object.keys(this.nsps);\n        for (const nsp of nsps) {\n            const socket = this.nsps[nsp];\n            if (socket.active) {\n                return;\n            }\n        }\n        this._close();\n    }\n    /**\n     * Writes a packet.\n     *\n     * @param packet\n     * @private\n     */\n    _packet(packet) {\n        const encodedPackets = this.encoder.encode(packet);\n        for (let i = 0; i < encodedPackets.length; i++) {\n            this.engine.write(encodedPackets[i], packet.options);\n        }\n    }\n    /**\n     * Clean up transport subscriptions and packet buffer.\n     *\n     * @private\n     */\n    cleanup() {\n        this.subs.forEach((subDestroy) => subDestroy());\n        this.subs.length = 0;\n        this.decoder.destroy();\n    }\n    /**\n     * Close the current socket.\n     *\n     * @private\n     */\n    _close() {\n        this.skipReconnect = true;\n        this._reconnecting = false;\n        this.onclose(\"forced close\");\n        if (this.engine)\n            this.engine.close();\n    }\n    /**\n     * Alias for close()\n     *\n     * @private\n     */\n    disconnect() {\n        return this._close();\n    }\n    /**\n     * Called upon engine close.\n     *\n     * @private\n     */\n    onclose(reason, description) {\n        this.cleanup();\n        this.backoff.reset();\n        this._readyState = \"closed\";\n        this.emitReserved(\"close\", reason, description);\n        if (this._reconnection && !this.skipReconnect) {\n            this.reconnect();\n        }\n    }\n    /**\n     * Attempt a reconnection.\n     *\n     * @private\n     */\n    reconnect() {\n        if (this._reconnecting || this.skipReconnect)\n            return this;\n        const self = this;\n        if (this.backoff.attempts >= this._reconnectionAttempts) {\n            this.backoff.reset();\n            this.emitReserved(\"reconnect_failed\");\n            this._reconnecting = false;\n        }\n        else {\n            const delay = this.backoff.duration();\n            this._reconnecting = true;\n            const timer = this.setTimeoutFn(() => {\n                if (self.skipReconnect)\n                    return;\n                this.emitReserved(\"reconnect_attempt\", self.backoff.attempts);\n                // check again for the case socket closed in above events\n                if (self.skipReconnect)\n                    return;\n                self.open((err) => {\n                    if (err) {\n                        self._reconnecting = false;\n                        self.reconnect();\n                        this.emitReserved(\"reconnect_error\", err);\n                    }\n                    else {\n                        self.onreconnect();\n                    }\n                });\n            }, delay);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n    }\n    /**\n     * Called upon successful reconnect.\n     *\n     * @private\n     */\n    onreconnect() {\n        const attempt = this.backoff.attempts;\n        this._reconnecting = false;\n        this.backoff.reset();\n        this.emitReserved(\"reconnect\", attempt);\n    }\n}\n", "import { url } from \"./url.js\";\nimport { Manager } from \"./manager.js\";\nimport { Socket } from \"./socket.js\";\n/**\n * Managers cache.\n */\nconst cache = {};\nfunction lookup(uri, opts) {\n    if (typeof uri === \"object\") {\n        opts = uri;\n        uri = undefined;\n    }\n    opts = opts || {};\n    const parsed = url(uri, opts.path || \"/socket.io\");\n    const source = parsed.source;\n    const id = parsed.id;\n    const path = parsed.path;\n    const sameNamespace = cache[id] && path in cache[id][\"nsps\"];\n    const newConnection = opts.forceNew ||\n        opts[\"force new connection\"] ||\n        false === opts.multiplex ||\n        sameNamespace;\n    let io;\n    if (newConnection) {\n        io = new Manager(source, opts);\n    }\n    else {\n        if (!cache[id]) {\n            cache[id] = new Manager(source, opts);\n        }\n        io = cache[id];\n    }\n    if (parsed.query && !opts.query) {\n        opts.query = parsed.queryKey;\n    }\n    return io.socket(parsed.path, opts);\n}\n// so that \"lookup\" can be used both as a function (e.g. `io(...)`) and as a\n// namespace (e.g. `io.connect(...)`), for backward compatibility\nObject.assign(lookup, {\n    Manager,\n    Socket,\n    io: lookup,\n    connect: lookup,\n});\n/**\n * Protocol version.\n *\n * @public\n */\nexport { protocol } from \"socket.io-parser\";\n/**\n * Expose constructors for standalone build.\n *\n * @public\n */\nexport { Manager, Socket, lookup as io, lookup as connect, lookup as default, };\n"],
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"ioNamespace", "u", "t", "delay", "factor", "depth", "reason", "lookup", "options", "eMsg", "uibuilder", "uibuilder_module_default", "uibuilder", "UibVar"]
+  "sources": ["src/front-end-module/ui.js", "src/front-end-module/uibuilder.module.js", "node_modules/engine.io-parser/build/esm/commons.js", "node_modules/engine.io-parser/build/esm/encodePacket.browser.js", "node_modules/engine.io-parser/build/esm/contrib/base64-arraybuffer.js", "node_modules/engine.io-parser/build/esm/decodePacket.browser.js", "node_modules/engine.io-parser/build/esm/index.js", "node_modules/@socket.io/component-emitter/index.mjs", "node_modules/engine.io-client/build/esm/globalThis.browser.js", "node_modules/engine.io-client/build/esm/util.js", "node_modules/engine.io-client/build/esm/contrib/parseqs.js", "node_modules/engine.io-client/build/esm/transport.js", "node_modules/engine.io-client/build/esm/contrib/yeast.js", "node_modules/engine.io-client/build/esm/contrib/has-cors.js", "node_modules/engine.io-client/build/esm/transports/xmlhttprequest.browser.js", "node_modules/engine.io-client/build/esm/transports/polling.js", "node_modules/engine.io-client/build/esm/transports/websocket-constructor.browser.js", "node_modules/engine.io-client/build/esm/transports/websocket.js", "node_modules/engine.io-client/build/esm/transports/webtransport.js", "node_modules/engine.io-client/build/esm/transports/index.js", "node_modules/engine.io-client/build/esm/contrib/parseuri.js", "node_modules/engine.io-client/build/esm/socket.js", "node_modules/engine.io-client/build/esm/index.js", "node_modules/socket.io-client/build/esm/url.js", "node_modules/socket.io-parser/build/esm/index.js", "node_modules/socket.io-parser/build/esm/is-binary.js", "node_modules/socket.io-parser/build/esm/binary.js", "node_modules/socket.io-client/build/esm/on.js", "node_modules/socket.io-client/build/esm/socket.js", "node_modules/socket.io-client/build/esm/contrib/backo2.js", "node_modules/socket.io-client/build/esm/manager.js", "node_modules/socket.io-client/build/esm/index.js", "src/components/uib-var.js"],
+  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\n// Namespaces - See https://stackoverflow.com/a/52572048/1309986\n// const NAMESPACES = {\n//     svg: 'http://www.w3.org/2000/svg',\n//     html: 'http://www.w3.org/1999/xhtml',\n//     xml: 'http://www.w3.org/XML/1998/namespace',\n//     xlink: 'http://www.w3.org/1999/xlink',\n//     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n// }\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    //#region ---- Internal Methods ----\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                if (attrib === 'class' && Array.isArray(comp.attributes[attrib])) comp.attributes[attrib].join(' ')\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n    } // --- end of _uiManager ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    //#endregion ---- -------- ----\n    //#region ---- External Methods ----\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {HTMLElement|null} Selected HTML element or null\n     */\n    $(cssSelector) {\n        /** @type {*} Some kind of HTML element */\n        let el = document.querySelector(cssSelector)\n\n        if (!el) {\n            Ui.log(1, 'Uib:$', `No element found for CSS selector ${cssSelector}`)()\n            return null\n        }\n\n        if ( el.nodeName === 'TEMPLATE' ) {\n            el = el.content.firstElementChild\n            if (!el) {\n                Ui.log(0, 'Uib:$', `Template selected for CSS selector ${cssSelector} but it is empty`)()\n                return null\n            }\n        }\n\n        return el\n    }\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {string} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {HTMLElement[]} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$(cssSelector) {\n        return Array.from(document.querySelectorAll(cssSelector))\n    }\n\n    /** Add 1 or several class names to an element\n     * @param {string|string[]} classNames Single or array of classnames\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    addClass(classNames, el) {\n        if (!Array.isArray(classNames)) classNames = [classNames]\n        if (el) el.classList.add(...classNames)\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n                if (attrib.name === 'class') thisOut.classes = Array.from(node.classList)\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    /** Remove All, 1 or more class names from an element\n     * @param {undefined|null|\"\"|string|string[]} classNames Single or array of classnames. If undefined, \"\" or null, remove all classes\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    removeClass(classNames, el) {\n        if (!classNames) {\n            el.removeAttribute('class')\n            return\n        }\n        if (!Array.isArray(classNames)) classNames = [classNames]\n        if (el) el.classList.remove(...classNames)\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += `<div>${msg.payload}</div>`\n        if (ui.content) content += `<div>${ui.content}</div>`\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        console.log(this)\n        this._uiManager(msg)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName) {\n                if (propName === 'classes') propName = 'class'\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    const p = {}\n                    // Nightmare of different object types in a DOM Element!\n                    const cType = prop.constructor.name.toLowerCase()\n                    if (cType === 'namednodemap') {\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                    } else if (!cType.includes('map')) { // Ordinary properties (not a mapped type)\n                        p[propName] = prop\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                    }\n                    if (p.class) p.classes = Array.from(node.classList)\n                    out.push(p)\n                }\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    /** External alias for _uiComposeComponent\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    //#endregion ---- -------- ----\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n", "/* This is the Front-End JavaScript for uibuilder  in HTML Module form\n  It provides a number of global objects that can be used in your own javascript.\n  see the docs folder `./docs/uibuilder.module.md` for details of how to use this fully.\n\n  Please use the default index.js file for your own code and leave this as-is.\n  See Uib._meta for client version string\n\n  Copyright (c) 2022-2024 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n//#region --- Type Defs --- //\n/**\n * A string containing HTML markup\n * @typedef {string} html\n */\n//#endregion --- Type Defs --- //\n\n// We need the Socket.IO & ui libraries & the uib-var component  --- //\n// @ts-ignore - Note: Only works when using esbuild to bundle\nimport Ui from './ui'\nimport io from 'socket.io-client'\nimport UibVar from '../components/uib-var'\n\nconst version = '6.8.0-src'\n\n// TODO Add option to allow log events to be sent back to Node-RED as uib ctrl msgs\n//#region --- Module-level utility functions --- //\n\n// @ts-ignore Detect whether the loaded library is minified or not\nconst isMinified = !(/param/).test(function (param) { }) // eslint-disable-line no-unused-vars\n\n//#region --- print/console - debugging output functions --- //\n\n/** Default log level - Error & Warn */\nlet logLevel = isMinified ? 0 : 1  // When using minified lib, assume production and only log errors otherwise also log warn\n// function changeLogLevel(level) {\n//     logLevel = level\n//     console.trace = logLevel < 4 ? function(){} : console.trace\n//     console.debug = logLevel < 2 ? function(){} : console.debug\n//     if ( logLevel < 1 ) {\n//         console.log = console.group = console.groupEnd =  function(){}\n//     }\n// }\n\n// Experimental\nconst LOG_STYLES = {\n    // 0\n    error: {\n        css: 'background: red; color: black;',\n        txtCss: 'color: red; ',\n        pre: '\u26D4 ',\n        console: 'error',  // or trace\n    },\n    // 1\n    warn: {\n        css: 'background: darkorange; color: black;',\n        txtCss: 'color: darkorange; ',\n        pre: '\u26A0 ',\n        console: 'warn',\n    },\n    // 2\n    info: {\n        css: 'background: aqua; color: black;',\n        txtCss: 'color: aqua;',\n        pre: '\u2757 ',\n        console: 'info',\n    },\n    // 3\n    log: {\n        css: 'background: grey; color: yellow;',\n        txtCss: 'color: grey;',\n        pre: '',\n        console: 'log',\n    },\n    // 4\n    debug: {\n        css: 'background: chartreuse; color: black;',\n        txtCss: 'color: chartreuse;',\n        pre: '',\n        console: 'debug',\n    },\n    // 5\n    trace: {\n        css: 'background: indigo; color: yellow;',\n        txtCss: 'color: hotpink;',\n        pre: '',\n        console: 'log',\n    },\n\n    names: ['error', 'warn', 'info', 'log', 'debug', 'trace'],\n    reset: 'color: inherit;',\n    head: 'font-weight:bold; font-style:italic;',\n    level: 'font-weight:bold; border-radius: 3px; padding: 2px 5px; display:inline-block;',\n}\n/** Custom logging. e.g. log(2, 'here:there', 'jiminy', {fred:'jim'})()\n * @returns {Function} Log function @example log(2, 'here:there', 'jiminy', {fred:'jim'})()\n */\nfunction log() {\n    // Get the args\n    const args = Array.prototype.slice.call(arguments)\n\n    // 1st arg is the log level/type\n    let level = args.shift()\n    let strLevel\n    switch (level) {\n        case 'trace':\n        case 5: {\n            if (logLevel < 5) break\n            level = 5 // make sure level is numeric\n            strLevel = 'trace'\n            break\n        }\n\n        case 'debug':\n        case 4: {\n            if (logLevel < 4) break\n            level = 4\n            strLevel = 'debug'\n            break\n        }\n\n        case 'log':\n        case 3: {\n            if (logLevel < 3) break\n            level = 3\n            strLevel = 'log'\n            break\n        }\n\n        case 'info':\n        case '':\n        case 2: {\n            if (logLevel < 2) break\n            level = 2\n            strLevel = 'info'\n            break\n        }\n\n        case 'warn':\n        case 1: {\n            if (logLevel < 1) break\n            level = 1\n            strLevel = 'warn'\n            break\n        }\n\n        case 'error':\n        case 'err':\n        case 0: {\n            if (logLevel < 0) break\n            level = 0\n            strLevel = 'error'\n            break\n        }\n\n        default: {\n            level = -1\n            break\n        }\n\n    }\n\n    // If set to something unknown, no log output\n    if (strLevel === undefined) return function () { }\n\n    // 2nd arg is a heading that will be colour highlighted\n    const head = args.shift()\n\n    // Bind back to console.log (could use console[strLevel] but some levels ignore some formatting, use console.xxx directly or dedicated fn)\n    return Function.prototype.bind.call(\n        console[LOG_STYLES[strLevel].console],\n        console,\n        `%c${LOG_STYLES[strLevel].pre}${strLevel}%c [${head}]`, `${LOG_STYLES.level} ${LOG_STYLES[strLevel].css}`, `${LOG_STYLES.head} ${LOG_STYLES[strLevel].txtCss}`,\n        ...args\n    )\n}\n//#endregion\n\n/** A hack to dynamically load a remote module and wait until it is loaded\n * @param {string} url The URL of the module to load\n * @returns {object|null} Either the result object or null (if the load fails)\n */\n// function loadModule(url) { // eslint-disable-line no-unused-vars\n//     let done\n\n//     import(url)\n//         .then(res => {\n//             log('debug', '>> then >>', res)()\n//             done = res\n//         })\n//         .catch(err => {\n//             console.error(`[uibuilder:loadModule] Could not load module ${url}`, err)\n//             done = null\n//         })\n\n//     //  eslint-disable-next-line no-empty\n//     while (!done) { } // eslint-disable-line no-unmodified-loop-condition\n\n//     return done\n// }\n\n/** Makes a null or non-object into an object\n * If not null, moves \"thing\" to {payload:thing}\n *\n * @param {*} thing Thing to check\n * @param {string} [property='payload'] property that \"thing\" is moved to if not null and not an object\n * @returns {!object} _\n */\nfunction makeMeAnObject(thing, property) {\n    if (!property) property = 'payload'\n    if (typeof property !== 'string') {\n        log('warn', 'uibuilderfe:makeMeAnObject', `WARNING: property parameter must be a string and not: ${typeof property}`)()\n        property = 'payload'\n    }\n    let out = {}\n    if ( thing !== null && thing.constructor.name === 'Object' ) {\n        out = thing\n    } else if (thing !== null) {\n        out[property] = thing\n    }\n    return out\n} // --- End of make me an object --- //\n\n/** Joins all arguments as a URL string\n * see http://stackoverflow.com/a/28592528/3016654\n * since v1.0.10, fixed potential double // issue\n * arguments {string} URL fragments\n * @returns {string} _\n */\nfunction urlJoin() {\n    const paths = Array.prototype.slice.call(arguments)\n    const url = '/' + paths.map(function (e) {\n        return e.replace(/^\\/|\\/$/g, '')\n    })\n        .filter(function (e) {\n            return e\n        })\n        .join('/')\n    return url.replace('//', '/')\n} // ---- End of urlJoin ---- //\n\n/** Convert JSON to Syntax Highlighted HTML\n * @param {object} json A JSON/JavaScript Object\n * @returns {html} Object reformatted as highlighted HTML\n */\nfunction syntaxHighlight(json) {\n    if (json === undefined) {\n        json = '<span class=\"undefined\">undefined</span>'\n    } else {\n        try {\n            json = JSON.stringify(json, undefined, 4)\n            // json = json.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;') // eslint-disable-line newline-per-chained-call\n            json = json.replace(/(\"(\\\\u[a-zA-Z0-9]{4}|\\\\[^u]|[^\\\\\"])*\"(\\s*:)?|\\b(true|false|null)\\b|-?\\d+(?:\\.\\d*)?(?:[eE][+-]?\\d+)?)/g, function (match) { // eslint-disable-line prefer-named-capture-group\n                let cls = 'number'\n                if ((/^\"/).test(match)) {\n                    if ((/:$/).test(match)) {\n                        cls = 'key'\n                    } else {\n                        cls = 'string'\n                    }\n                } else if ((/true|false/).test(match)) {\n                    cls = 'boolean'\n                } else if ((/null/).test(match)) {\n                    cls = 'null'\n                }\n                return `<span class=\"${cls}\">${match}</span>`\n            })\n        } catch (e) {\n            json = `Syntax Highlight ERROR: ${e.message}`\n        }\n    }\n    return json\n}\n\n/** msg._ui handling functions */\nconst _ui = new Ui(window, log, syntaxHighlight)\n\n//#endregion --- Module-level utility functions --- //\n\n/** Define and export the Uib class - note that an instance of the class is also exported in the wrap-up\n * @typicalname uibuilder\n */\nexport const Uib = class Uib {\n\n    //#region --- Static variables ---\n    static _meta = {\n        version: version,\n        type: 'module',\n        displayName: 'uibuilder',\n    }\n    //#endregion ---- ---- ---- ----\n\n    //#region private class vars\n\n    // How many times has the loaded instance connected to Socket.IO (detect if not a new load?)\n    connectedNum = 0\n    // event listener callbacks by property name\n    // #events = {}\n    // Socket.IO channel names\n    _ioChannels = { control: 'uiBuilderControl', client: 'uiBuilderClient', server: 'uiBuilder' }\n    /** setInterval holder for pings @type {function|undefined} */\n    #pingInterval\n    // onChange event callbacks\n    #propChangeCallbacks = {}\n    // onTopic event callbacks\n    #msgRecvdByTopicCallbacks = {}\n    // Is Vue available?\n    isVue = false\n    // What version? Set in startup if Vue is loaded. Won't always work\n    vueVersion = undefined\n    /** setInterval id holder for Socket.IO checkConnect\n     * @type {number|null}\n     */\n    #timerid = null\n    // Holds the reference ID for the internal msg change event handler so that it can be cancelled\n    #MsgHandler\n    // Placeholder for io.socket - can't make a # var until # fns allowed in all browsers\n    _socket\n    // Placeholder for an observer that watches the whole DOM for changes - can't make a # var until # fns allowed in all browsers\n    _htmlObserver\n    // Has showMsg been turned on?\n    #isShowMsg = false\n    // Has showStatus been turned on?\n    #isShowStatus = false\n    // If true, URL hash changes send msg back to node-red. Controlled by watchUrlHash()\n    #sendUrlHash = false\n    // Externally accessible command functions (NB: Case must match) - remember to update _uibCommand for new commands\n    #extCommands = [\n        'elementExists', 'get', 'getManagedVarList', 'getWatchedVars', 'htmlSend', 'include',\n        'navigate', 'scrollTo', 'set', 'showMsg', 'showStatus', 'uiGet', 'uiWatch', 'watchUrlHash',\n    ]\n\n    /** @type {{[key: string]: string}} Managed uibuilder variables */\n    #managedVars = {}\n\n    // What status variables to show via showStatus()\n    #showStatus = {\n        online: { 'var': 'online', 'label': 'Online?', 'description': 'Is the browser online?', },\n        ioConnected: { 'var': 'ioConnected', 'label': 'Socket.IO connected?', 'description': 'Is Socket.IO connected?', },\n        connectedNum: { 'var': 'connectedNum', 'label': '# reconnections', 'description': 'How many times has Socket.IO had to reconnect since last page load?', },\n\n        clientId: { 'var': 'clientId', 'label': 'Client ID', 'description': 'Static client unique id set in Node-RED. Only changes when browser is restarted.', },\n        tabId: { 'var': 'tabId', 'label': 'Browser tab ID', 'description': 'Static unique id for the browser\\'s current tab', },\n        cookies: { 'var': 'cookies', 'label': 'Cookies', 'description': 'Cookies set in Node-RED', },\n        httpNodeRoot: { 'var': 'httpNodeRoot', 'label': 'httpNodeRoot', 'description': 'From Node-RED\\' settings.js, affects URL\\'s. May be wrong for pages in sub-folders', },\n        pageName: { 'var': 'pageName', 'label': 'Page name', 'description': 'Actual name of this page', },\n\n        ioNamespace: { 'var': 'ioNamespace', 'label': 'SIO namespace', 'description': 'Socket.IO namespace - unique to each uibuilder node instance', },\n        // ioPath: { 'var': 'ioPath', 'label': 'SIO path', 'description': '', }, // no longer needed in the modern client\n        socketError: { 'var': 'socketError', 'label': 'Socket error', 'description': 'If the Socket.IO connection has failed, says why', },\n\n        msgsSent: { 'var': 'msgsSent', 'label': '# msgs sent', 'description': 'How many standard messages have been sent to Node-RED?', },\n        msgsReceived: { 'var': 'msgsReceived', 'label': '# msgs received', 'description': 'How many standard messages have been received from Node-RED?', },\n        msgsSentCtrl: { 'var': 'msgsSentCtrl', 'label': '# control msgs sent', 'description': 'How many control messages have been sent to Node-RED?', },\n        msgsCtrlReceived: { 'var': 'msgsCtrlReceived', 'label': '# control msgs received', 'description': 'How many control messages have been received from Node-RED?', },\n        originator: { 'var': 'originator', 'label': 'Node Originator', 'description': 'If the last msg from Node-RED was from a `uib-sender` node, this will be its node id so that messasges can be returned to it', },\n        topic: { 'var': 'topic', 'label': 'Default topic', 'description': 'Optional default topic to be included in outgoing standard messages', },\n\n        started: { 'var': 'started', 'label': 'Has uibuilder client started?', 'description': 'Whether `uibuilder.start()` ran successfully. This should self-run and should not need to be run manually', },\n        version: { 'var': 'version', 'label': 'uibuilder client version', 'description': 'The version of the loaded uibuilder client library', },\n        serverTimeOffset: { 'var': 'serverTimeOffset', 'label': 'Server time offset (Hrs)', 'description': 'The number of hours difference between the Node-red server and the client', },\n    }\n\n    // Track ui observers (see uiWatch)\n    #uiObservers = {}\n\n    //#endregion\n\n    //#region public class vars\n\n    // TODO Move to proper getters\n    //#region ---- Externally read-only (via .get method) ---- //\n    // version - moved to _meta\n    /** Client ID set by uibuilder on connect */\n    clientId = ''\n    /** The collection of cookies provided by uibuilder */\n    cookies = {}\n    /** Copy of last control msg object received from sever */\n    ctrlMsg = {}\n    /** Is Socket.IO client connected to the server? */\n    ioConnected = false\n    // Is the browser tab containing this page visible or not?\n    isVisible = false\n    // Remember the last page (re)load/navigation type: navigate, reload, back_forward, prerender\n    lastNavType = ''\n    /** Last std msg received from Node-RED */\n    msg = {}\n    /** number of messages sent to server since page load */\n    msgsSent = 0\n    /** number of messages received from server since page load */\n    msgsReceived = 0\n    /** number of control messages sent to server since page load */\n    msgsSentCtrl = 0\n    /** number of control messages received from server since page load */\n    msgsCtrlReceived = 0\n    /** Is the client online or offline? */\n    online = navigator.onLine\n    /** last control msg object sent via uibuilder.send() @since v2.0.0-dev3 */\n    sentCtrlMsg = {}\n    /** last std msg object sent via uibuilder.send() */\n    sentMsg = {}\n    /** placeholder to track time offset from server, see fn socket.on(ioChannels.server ...) */\n    serverTimeOffset = null\n    /** placeholder for a socket error message */\n    socketError = null\n    // tab identifier from session storage\n    tabId = ''\n    // Actual name of current page (set in constructor)\n    pageName = null\n    // Is the DOMPurify library loaded? Updated in start()\n    purify = false\n    // Is the Markdown-IT library loaded? Updated in start()\n    markdown = false\n    // Current URL hash. Initial set is done from start->watchHashChanges via a set to make it watched\n    urlHash = location.hash\n    //#endregion ---- ---- ---- ---- //\n\n    // TODO Move to proper getters/setters\n    //#region ---- Externally Writable (via .set method, read via .get method) ---- //\n    /** Default originator node id - empty string by default\n     * @type {string}\n     */\n    originator = ''\n    /** Default topic - used by send if set and no topic provided\n     * @type {(string|undefined)}\n     */\n    topic = undefined\n    //#endregion ---- ---- ---- ---- //\n\n    //#region ---- These are unlikely to be needed externally: ----\n    autoSendReady = true\n    httpNodeRoot = '' // Node-RED setting (via cookie)\n    ioNamespace = ''\n    ioPath = ''\n    retryFactor = 1.5       // starting delay factor for subsequent reconnect attempts\n    retryMs = 2000          // starting retry ms period for manual socket reconnections workaround\n    storePrefix = 'uib_'    // Prefix for all uib-related localStorage\n    started = false\n    // NOTE: These can only change when a client (re)connects\n    socketOptions = {\n        path: this.ioPath,\n        transports: ['polling', 'websocket'],\n        // Using callback so that they are updated automatically on (re)connect\n        // Only put things in here that will be valid for a websocket connected session\n        auth: (cb) => {\n            cb({ // eslint-disable-line n/no-callback-literal\n                clientVersion: version,\n                clientId: this.clientId,\n                pathName: window.location.pathname,\n                urlParams: Object.fromEntries(new URLSearchParams(location.search)),\n                pageName: this.pageName,\n                tabId: this.tabId,\n                lastNavType: this.lastNavType,\n                connectedNum: ++this.connectedNum,\n                // Used to calculate the diff between the server and client connection timestamps - reported if >1 minute\n                browserConnectTimestamp: (new Date()).toISOString(),\n            })\n        },\n        transportOptions: {\n            // Can only set headers when polling\n            polling: {\n                extraHeaders: {\n                    'x-clientid': `${Uib._meta.displayName}; ${Uib._meta.type}; ${Uib._meta.version}; ${this.clientId}`,\n                }\n            },\n        },\n    }\n    //#endregion -- not external --\n\n    //#endregion --- End of variables ---\n\n    //#region ------- Getters and Setters ------- //\n\n    // Change logging level dynamically (affects both console. and print.)\n    set logLevel(level) { logLevel = level; console.log('%c\u2757 info%c [logLevel]', `${LOG_STYLES.level} ${LOG_STYLES.info.css}`, `${LOG_STYLES.head} ${LOG_STYLES.info.txtCss}`, `Set to ${level} (${LOG_STYLES.names[level]})`) /* changeLogLevel(level)*/ }\n    get logLevel() { return logLevel }\n\n    get meta() { return Uib._meta }\n\n    /** Function to set uibuilder properties to a new value - works on any property except _* or #*\n     * Also triggers any event listeners.\n     * Example: this.set('msg', {topic:'uibuilder', payload:42});\n     * @param {string} prop Any uibuilder property who's name does not start with a _ or #\n     * @param {*} val The set value of the property or a string declaring that a protected property cannot be changed\n     * @param {boolean} [store] If true, the variable is also saved to the browser localStorage if possible\n     * @param {boolean} [autoload] If true & store is true, on load, uib will try to restore the value from the store automatically\n     * @returns {*} Input value\n     */\n    set(prop, val, store = false, autoload = false) {\n        // Check for excluded properties - we don't want people to set these\n        // if (this.#excludedSet.indexOf(prop) !== -1) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:set', `Cannot use set() on protected property \"${prop}\"`)()\n            return `Cannot use set() on protected property \"${prop}\"`\n        }\n\n        // We must add the var to the uibuilder object\n        this[prop] = val\n\n        // Keep track of all managed variables\n        this.#managedVars[prop] = prop\n\n        // If requested, save to store\n        if (store === true) this.setStore(prop, val, autoload)\n\n        log('trace', 'Uib:set', `prop set - prop: ${prop}, val: `, val, ` store: ${store}, autoload: ${autoload}`)()\n\n        // Trigger this prop's event callbacks (listeners which are set by this.onChange)\n        // this.emit(prop, val)\n\n        // trigger an event on the prop name, pass both the name and value to the event details\n        this._dispatchCustomEvent('uibuilder:propertyChanged', { 'prop': prop, 'value': val, 'store': store, 'autoload': autoload })\n\n        return val\n    }\n\n    /** Function to get the value of a uibuilder property\n     * Example: uibuilder.get('msg')\n     * @param {string} prop The name of the property to get as long as it does not start with a _ or #\n     * @returns {*|undefined} The current value of the property\n     */\n    get(prop) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:get', `Cannot use get() on protected property \"${prop}\"`)()\n            return\n        }\n        if (prop === 'version') return Uib._meta.version\n        if (prop === 'msgsCtrl') return this.msgsCtrlReceived\n        if (prop === 'reconnections') return this.connectedNum\n        if (this[prop] === undefined) {\n            log('warn', 'Uib:get', `get() - property \"${prop}\" is undefined`)()\n        }\n        return this[prop]\n    }\n\n    /** Write to localStorage if possible. console error output if can't write\n     * Also uses this.storePrefix\n     * @example\n     *   uibuilder.setStore('fred', 42)\n     *   console.log(uibuilder.getStore('fred'))\n     * @param {string} id localStorage var name to be used (prefixed with 'uib_')\n     * @param {*} value value to write to localstore\n     * @param {boolean} [autoload] If true, on load, uib will try to restore the value from the store\n     * @returns {boolean} True if succeeded else false\n     */\n    setStore(id, value, autoload = false) {\n        let autoVars = {}\n        if (autoload === true) {\n            try {\n                autoVars = this.getStore('_uibAutoloadVars') || {}\n            } catch (e) {}\n        }\n        if (typeof value === 'object') {\n            try {\n                value = JSON.stringify(value)\n            } catch (e) {\n                log('error', 'Uib:setStore', 'Cannot stringify object, not storing. ', e)()\n                return false\n            }\n        }\n        try {\n            localStorage.setItem(this.storePrefix + id, value)\n            if (autoload) {\n                autoVars[id] = id\n                try {\n                    localStorage.setItem(this.storePrefix + '_uibAutoloadVars', JSON.stringify(autoVars))\n                } catch (e) {\n                    log('error', 'Uib:setStore', 'Cannot save autoload list. ', e)()\n                }\n            }\n            this._dispatchCustomEvent('uibuilder:propertyStored', { 'prop': id, 'value': value, 'autoload': autoload })\n            return true\n        } catch (e) {\n            log('error', 'Uib:setStore', 'Cannot write to localStorage. ', e)()\n            return false\n        }\n    } // --- end of setStore --- //\n\n    /** Attempt to get and re-hydrate a key value from localStorage\n     * Note that all uib storage is automatically prefixed using this.storePrefix\n     * @param {*} id The key of the value to attempt to retrieve\n     * @returns {*|null|undefined} The re-hydrated value of the key or null if key not found, undefined on error\n     */\n    getStore(id) {\n        try {\n            // @ts-ignore\n            return JSON.parse(localStorage.getItem(this.storePrefix + id))\n        } catch (e) { }\n        try {\n            return localStorage.getItem(this.storePrefix + id)\n        } catch (e) {\n            return undefined\n        }\n    }\n\n    /** Remove a given id from the uib keys in localStorage\n     * @param {*} id The key to remove\n     */\n    removeStore(id) {\n        try {\n            localStorage.removeItem(this.storePrefix + id)\n        } catch (e) { }\n    }\n\n    /** Returns a list of uibuilder properties (variables) that can be watched with onChange\n     * @returns {{[key: string]: string}} List of uibuilder managed variables\n     */\n    getManagedVarList() {\n        return this.#managedVars\n    }\n\n    getWatchedVars() {\n        return Object.keys(this.#propChangeCallbacks)\n    }\n\n    //#endregion ------- -------- ------- //\n\n    //#region ------- Our own event handling system ---------- //\n\n    // TODO Add option to send event details back to Node-RED as uib ctrl msg\n    /** Standard fn to create a custom event with details & dispatch it\n     * @param {string} title The event name\n     * @param {*} details Any details to pass to event output\n     */\n    _dispatchCustomEvent(title, details) {\n        const event = new CustomEvent(title, { detail: details })\n        document.dispatchEvent(event)\n    }\n\n    // See the this.#propChangeCallbacks & msgRecvdByTopicCallbacks private vars\n\n    /** Register on-change event listeners for uibuilder tracked properties\n     * Make it possible to register a function that will be run when the property changes.\n     * Note that you can create listeners for non-existant properties\n     * @example: uibuilder.onChange('msg', (msg) => { console.log('uibuilder.msg changed! It is now: ', msg) })\n     *\n     * @param {string} prop The property of uibuilder that we want to monitor\n     * @param {Function} callback The function that will run when the property changes, parameter is the new value of the property after change\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelChange if you need to remove a listener\n     */\n    onChange(prop, callback) {\n        // Note: Property does not have to exist yet\n\n        // console.debug(`[Uib:onchange] pushing new callback (event listener) for property: ${prop}`)\n\n        // Create a new array or add to the array of callback functions for the property in the events object\n        // if (this.#events[prop]) {\n        //     this.#events[prop].push(callback)\n        // } else {\n        //     this.#events[prop] = [callback]\n        // }\n\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#propChangeCallbacks[prop]) this.#propChangeCallbacks[prop] = { _nextRef: 1 }\n        else this.#propChangeCallbacks[prop]._nextRef++\n\n        const nextCbRef = this.#propChangeCallbacks[prop]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const propChangeCallback = this.#propChangeCallbacks[prop][nextCbRef] = function propChangeCallback(e) {\n            // If the prop name matches the 1st arg in the onChange fn:\n            if (prop === e.detail.prop) {\n                const value = e.detail.value\n                // console.warn('[Uib:onChange:evt] uibuilder:propertyChanged. ', e.detail)\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(value, value)\n            }\n        }\n\n        document.addEventListener('uibuilder:propertyChanged', propChangeCallback)\n\n        return nextCbRef\n    } // ---- End of onChange() ---- //\n\n    cancelChange(prop, cbRef) {\n        document.removeEventListener('uibuilder:propertyChanged', this.#propChangeCallbacks[prop][cbRef])\n        delete this.#propChangeCallbacks[prop][cbRef]\n        // this.#propChangeCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Register a change callback for a specific msg.topic\n     * Similar to onChange but more convenient if needing to differentiate by msg.topic.\n     * @example: let otRef = uibuilder.onTopic('mytopic', function(){ console.log('Received a msg with msg.topic=`mytopic`. msg: ', this) })\n     * To cancel a change listener: uibuilder.cancelTopic('mytopic', otRef)\n     *\n     * @param {string} topic The msg.topic we want to listen for\n     * @param {Function} callback The function that will run when an appropriate msg is received. `this` inside the callback as well as the cb's single argument is the received msg.\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelTopic if you need to remove a listener\n     */\n    onTopic(topic, callback) {\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#msgRecvdByTopicCallbacks[topic]) this.#msgRecvdByTopicCallbacks[topic] = { _nextRef: 1 }\n        else this.#msgRecvdByTopicCallbacks[topic]._nextRef++\n\n        const nextCbRef = this.#msgRecvdByTopicCallbacks[topic]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const msgRecvdEvtCallback = this.#msgRecvdByTopicCallbacks[topic][nextCbRef] = function msgRecvdEvtCallback(e) {\n            const msg = e.detail\n            // console.log('[Uib:onTopic:evt] uibuilder:stdMsgReceived where topic matches. ', e.detail)\n            if (msg.topic === topic) {\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(msg, msg)\n            }\n        }\n\n        document.addEventListener('uibuilder:stdMsgReceived', msgRecvdEvtCallback)\n\n        return nextCbRef\n    }\n\n    cancelTopic(topic, cbRef) {\n        document.removeEventListener('uibuilder:stdMsgReceived', this.#msgRecvdByTopicCallbacks[topic][cbRef])\n        delete this.#msgRecvdByTopicCallbacks[topic][cbRef]\n        // this.#msgRecvdCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Trigger event listener for a given property\n     * Called when uibuilder.set is used\n     *\n     * @param {*} prop The property for which to run the callback functions\n     * arguments: Additional arguments contain the value to pass to the event callback (e.g. newValue)\n     */\n    // emit(prop) {\n    //     var evt = this.#events[prop]\n    //     if (!evt) {\n    //         return\n    //     }\n    //     var args = Array.prototype.slice.call(arguments, 1)\n    //     for (var i = 0; i < evt.length; i++) {\n    //         evt[i].apply(this, args)\n    //     }\n    //     log('trace', 'Uib:emit', `${evt.length} listeners run for prop ${prop} `)()\n    // }\n\n    /** Forcibly removes all event listeners from the events array\n     * Use if you need to re-initialise the environment\n     */\n    // clearEventListeners() {\n    //     this.#events = []\n    // } // ---- End of clearEventListeners() ---- //\n\n    /** Clear a single property event listeners\n     * @param {string} prop The property of uibuilder for which we want to clear the event listener\n     */\n    // clearListener(prop) {\n    //     if (this.#events[prop]) delete this.#events[prop]\n    // }\n\n    //#endregion ---------- End of event handling system ---------- //\n\n    //#region ------- General Utility Functions -------- //\n\n    /** Check supplied msg from server for a timestamp - if received, work out & store difference to browser time\n     * @param {object} receivedMsg A message object recieved from Node-RED\n     * @returns {void} Updates self.serverTimeOffset if different to previous value\n     */\n    _checkTimestamp(receivedMsg) {\n        if (Object.prototype.hasOwnProperty.call(receivedMsg, 'serverTimestamp')) {\n            const serverTimestamp = new Date(receivedMsg.serverTimestamp)\n            // @ts-ignore\n            const offset = Math.round(((new Date()) - serverTimestamp) / 3600000) // in ms /3.6m to get hours\n            if (offset !== this.serverTimeOffset) {\n                log('trace', `Uib:checkTimestamp:${this._ioChannels.server} (server)`, `Offset changed to: ${offset} from: ${this.serverTimeOffset}`)()\n                this.set('serverTimeOffset', offset)\n            }\n        }\n    }\n\n    /** Set the default originator. Set to '' to ignore. Used with uib-sender.\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    setOriginator(originator = '') {\n        this.set('originator', originator)\n    } // ---- End of setOriginator ---- //\n\n    /** HTTP Ping/Keep-alive - makes a call back to uibuilder's ExpressJS server and receives a 204 response\n     * Can be used to keep sessions alive.\n     * @example\n     *   uibuilder.setPing(2000) // repeat every 2 sec. Re-issue with ping(0) to turn off repeat.\n     *   uibuilder.onChange('ping', function(data) {\n     *      console.log('pinger', data)\n     *   })\n     * @param {number} ms Repeat interval in ms\n     */\n    setPing(ms = 0) {\n        const oReq = new XMLHttpRequest()\n        oReq.addEventListener('load', () => {\n            const headers = (oReq.getAllResponseHeaders()).split('\\r\\n')\n            const elapsedTime = Number(new Date()) - Number((oReq.responseURL.split('='))[1])\n            this.set('ping', {\n                success: !!((oReq.status === 201) || (oReq.status === 204)), // true if one of the listed codes else false\n                status: oReq.status,\n                headers: headers,\n                url: oReq.responseURL,\n                elapsedTime: elapsedTime,\n            })\n        })\n\n        if (this.#pingInterval) {\n            clearInterval(this.#pingInterval)\n            this.#pingInterval = undefined\n        }\n\n        oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n        oReq.send()\n\n        if (ms > 0) {\n            this.#pingInterval = setInterval(() => {\n                oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n                oReq.send()\n            }, ms)\n        }\n    } // ---- End of ping ---- //\n\n    log() {\n        log(...arguments)()\n    }\n\n    /** Convert JSON to Syntax Highlighted HTML\n     * @param {object} json A JSON/JavaScript Object\n     * @returns {html} Object reformatted as highlighted HTML\n     */\n    syntaxHighlight(json) {\n        return syntaxHighlight(json)\n    } // --- End of syntaxHighlight --- //\n\n    /** Copies a uibuilder variable to the browser clipboard\n     * @param {string} varToCopy The name of the uibuilder variable to copy to the clipboard\n     */\n    copyToClipboard(varToCopy) {\n        let data = ''\n        try {\n            data = JSON.stringify(this.get(varToCopy))\n        } catch (e) {\n            log('error', 'copyToClipboard', `Could not copy \"${varToCopy}\" to clipboard.`, e.message)()\n        }\n        navigator.clipboard.writeText(data)\n    } // --- End of copyToClipboard --- //\n\n    /** DEPRECATED FOR NOW - wasn't working properly.\n     * Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.\n     * Requires IntersectionObserver (available to all mainstream browsers from early 2019)\n     * Automatically sends a msg back to Node-RED.\n     * Requires the element to already exist.\n     * @returns {false} False if not visible\n     */\n    elementIsVisible() {\n        const info = 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'\n        log('error', 'uib:elementIsVisible', info)()\n        this.send({ payload: 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex' })\n        return false\n    } // --- End of elementIsVisible --- //\n\n    /** Does the chosen CSS Selector currently exist?\n     * Automatically sends a msg back to Node-RED unless turned off.\n     * @param {string} cssSelector Required. CSS Selector to examine for visibility\n     * @param {boolean} [msg] Optional, default=true. If true also sends a message back to Node-RED\n     * @returns {boolean} True if the element exists\n     */\n    elementExists(cssSelector, msg = true) {\n        const el = document.querySelector(cssSelector)\n\n        let exists = false\n        if (el !== null) exists = true\n\n        if (msg === true) {\n            this.send({\n                payload: exists,\n                info: `Element \"${cssSelector}\" ${exists ? 'exists' : 'does not exist'}`\n            })\n        }\n\n        return exists\n    } // --- End of elementExists --- //\n\n    /** Only keep the URL Hash & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return '#' + url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Set up an event listener to watch for hash changes\n     * and set the watchable urlHash variable\n     */\n    _watchHashChanges() {\n        this.set('urlHash', location.hash)\n        window.addEventListener('hashchange', (event) => {\n            this.set('urlHash', location.hash)\n            if (this.#sendUrlHash === true) {\n                this.send({ topic: 'hashChange', payload: location.hash, newHash: this.keepHashFromUrl(event.newURL), oldHash: this.keepHashFromUrl(event.oldURL) })\n            }\n        })\n    }\n\n    /** Returns true/false or a default value for truthy/falsy and other values\n     * @param {string|number|boolean|*} val The value to test\n     * @param {any} deflt Default value to use if the value is not truthy/falsy\n     * @returns {boolean|any} The truth! Or the default\n     */\n    truthy(val, deflt) {\n        let ret\n        if (['on', 'On', 'ON', 'true', 'True', 'TRUE', '1', true, 1].includes(val)) ret = true\n        else if (['off', 'Off', 'OFF', 'false', 'False', 'FALSE', '0', false, 0].includes(val)) ret = false\n        else ret = deflt\n        return ret\n    }\n\n    /** Turn on/off/toggle sending URL hash changes back to Node-RED\n     * @param {string|number|boolean|undefined} [toggle] Optional on/off/etc\n     * @returns {boolean} True if we will send a msg to Node-RED on a hash change\n     */\n    watchUrlHash(toggle) {\n        this.#sendUrlHash = this.truthy(toggle, this.#sendUrlHash !== true)\n        return this.#sendUrlHash\n    }\n\n    /** Navigate to a new page or a new route (hash)\n     * @param {string} url URL to navigate to. Can be absolute or relative (to current page) or just a hash for a route change\n     * @returns {Location} The new window.location string\n     */\n    navigate(url) {\n        if (url) window.location.href = url\n        return window.location\n    }\n\n    /** Format a number using the INTL standard library - compatible with uib-var filter function\n     * @param {number} value Number to format\n     * @param {number} decimalPlaces Number of decimal places to include. Default=no default\n     * @param {string} intl standard locale spec, e.g. \"ja-JP\" or \"en-GB\". Default=navigator.language\n     * @param {object} opts INTL library options object. Optional\n     * @returns {string} formatted number\n     * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/toLocaleString\n     */\n    formatNumber(value, decimalPlaces, intl, opts) {\n        if (isNaN(value)) {\n            log('error', 'formatNumber', `Value must be a number. Value type: \"${typeof value}\"`)()\n            return 'NaN'\n        }\n        if (!opts) opts = {}\n        if (!intl) intl = navigator.language ? navigator.language : 'en-GB'\n        if (decimalPlaces) {\n            opts.minimumFractionDigits = decimalPlaces\n            opts.maximumFractionDigits = decimalPlaces\n        }\n        let out\n        try {\n            out = Number(value).toLocaleString(intl, opts)\n        } catch (e) {\n            log('error', 'formatNumber', `${e.message}. value=${value}, dp=${decimalPlaces}, intl=\"${intl}\", opts=${JSON.stringify(opts)}`)()\n            return 'NaN'\n        }\n        return out\n    }\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- UI handlers --------- //\n\n    //#region -- Direct to _ui --\n    // ! NOTE: Direct assignments change the target `this` to here. Use with caution\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {HTMLElement|null} Selected HTML element or null\n     */\n    $ = _ui.$\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {string} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {HTMLElement[]} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$ = _ui.$$\n\n    /** Reference to the full ui library */\n    $ui = _ui\n\n    /** Add 1 or several class names to an element\n     * @param {string|string[]} classNames Single or array of classnames\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    addClass = _ui.addClass\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        return _ui.convertMarkdown\n    }\n\n    /** ASYNC: Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     */\n    async include(url, uiOptions) {\n        await _ui.include(url, uiOptions)\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        _ui.loadScriptSrc(url)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        _ui.loadStyleSrc(url)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        _ui.loadScriptTxt(textFn)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        _ui.loadStyleTxt(textFn)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        _ui.loadui(url)\n    }\n\n    /** Remove All, 1 or more class names from an element\n     * @param {undefined|null|\"\"|string|string[]} classNames Single or array of classnames. If undefined, \"\" or null, remove all classes\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    removeClass = _ui.removeClass\n\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        _ui.replaceSlot(el, component)\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        _ui.replaceSlotMarkdown(el, component)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        return _ui.sanitiseHTML(html)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) {\n        _ui.showDialog(type, ui, msg)\n    }\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        _ui.ui(json)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        return _ui.uiGet(cssSelector, propName)\n    }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} component Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, component) {\n        _ui.uiEnhanceElement(el, component)\n    }\n\n    //#endregion -- direct to _ui --\n\n    /** * Show/hide a display card on the end of the visible HTML that will dynamically display the last incoming msg from Node-RED\n     * The card has the id `uib_last_msg`. Updates are done from a listener set up in the start function.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showMsg(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowMsg\n        this.#isShowMsg = showHide\n        let slot = 'Waiting for a message from Node-RED'\n\n        if (this.msg && Object.keys(this.msg).length > 0) {\n            slot = this.syntaxHighlight(this.msg)\n        }\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_last_msg_wrap',\n                ],\n            })\n        } else {\n            _ui._uiReplace({\n                components: [\n                    {\n                        type: 'div',\n                        id: 'uib_last_msg_wrap',\n                        parent: parent,\n                        attributes: {\n                            title: 'Last message from Node-RED',\n                        },\n                        components: [\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.copyToClipboard(\"msg\")',\n                                    class: 'compact',\n                                    style: 'right:3em;',\n                                },\n                                slot: '\uD83D\uDCCB',\n                            },\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.showMsg()',\n                                    class: 'compact',\n                                    style: 'right:.5em;',\n                                },\n                                slot: '\u26D4',\n                            },\n                            {\n                                type: 'pre',\n                                id: 'uib_last_msg',\n                                // parent: 'uib_last_msg_wrap',\n                                attributes: {\n                                    class: 'syntax-highlight',\n                                },\n                                slot: slot,\n                            },\n                        ],\n                    },\n                ],\n            })\n        }\n\n        return showHide\n    }\n\n    /** Show a browser notification if possible.\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * @example uibuilder.notify( 'My simple message to the user' )\n     * @example uibuilder.notify( {topic: 'My Title', payload: 'My simple message to the user'} )\n     * @example uibuilder.notify( {title: 'My Title', body: 'My simple message to the user'} )\n     * @example // If config.return = true, a promise is returned.\n     * // The resolved promise is only returned if the notification is clicked by the user.\n     * // Can be used to send the response back to Node-RED\n     * uibuilder.notify(notifyConfig).then( res => uibuilder.eventSend(res) )\n     * @ref https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config data or simple message string\n     * @returns {Promise<Event>|null} A promise that resolves to the click event or null\n     */\n    notify(config) {\n        if (config.return) return _ui.notification(config)\n\n        _ui.notification(config)\n            .then( res => { // eslint-disable-line promise/always-return\n                log('info', 'Uib:notification', 'Notification completed event', res)()\n                // if (config.return) return res\n            })\n            .catch( err => {\n                log('error', 'Uib:notification', 'Notification error event', err)()\n            })\n        return null\n    }\n\n    /** Scroll the page\n     * https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollIntoView\n     * @param {string} [cssSelector] Optional. If not set, scrolls to top of page.\n     * @param {{block:(string|undefined),inline:(string|undefined),behavior:(string|undefined)}} [opts] Optional. DOM scrollIntoView options\n     * @returns {boolean} True if element was found, false otherwise\n     */\n    scrollTo(cssSelector, opts) {\n        // @ts-ignore\n        if (!opts) opts = {}\n        if (!cssSelector || cssSelector === 'top'  || cssSelector === 'start') cssSelector = 'body'\n        else if (cssSelector === 'bottom' || cssSelector === 'end') {\n            cssSelector = 'body'\n            opts.block = 'end'\n        }\n        const el = this.$(cssSelector)\n        if (el) {\n            el.scrollIntoView(opts)\n            return true\n        }\n        return false\n    }\n\n    /** Show/hide a display card on the end of the visible HTML that will dynamically display the current status of the uibuilder client\n     * The card has the id `uib_status`.\n     * The display is updated by an event listener created in the class constructor.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showStatus(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowStatus\n        this.#isShowStatus = showHide\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_status',\n                ],\n            })\n            return showHide\n        }\n\n        const root = {\n            components: [\n                {\n                    type: 'div',\n                    id: 'uib_status',\n                    parent: parent,\n                    attributes: {\n                        title: 'Current status of the uibuilder client',\n                        class: 'text-smaller',\n                    },\n                    components: [\n                        {\n                            'type': 'table',\n                            'components': [\n                                {\n                                    'type': 'tbody',\n                                    'components': []\n                                }\n                            ]\n                        }\n                    ]\n                }\n            ]\n        }\n        const details = root.components[0].components[0].components[0].components\n\n        Object.values(this.#showStatus).forEach( entry => {\n            details.push({\n                'type': 'tr',\n                'attributes': {\n                    title: entry.description,\n                },\n                'components': [\n                    {\n                        'type': 'th',\n                        'slot': entry.label,\n                    },\n                    {\n                        'type': 'td',\n                        'attributes': {\n                            'data-varType': entry.var,\n                        },\n                        'slot': entry.var === 'version' ? Uib._meta.version : JSON.stringify(this[entry.var]),\n                    }\n                ],\n            })\n        })\n\n        _ui._uiReplace(root)\n\n        return showHide\n    }\n\n    /** Use the Mutation Observer browser API to watch for changes to a single element on the page.\n     * OMG! It is sooo hard to turn the data into something that successfully serialises so it can be sent back to Node-RED!\n     * NB: Each cssSelector creates a unique watcher. Sending the same selector overwrites the previous one.\n     * @param {string} cssSelector A CSS Selector that selects the element to watch for changes\n     * @param {boolean|\"toggle\"} [startStop] true=start watching the DOM, false=stop. Default='toggle'\n     * @param {boolean} [send] true=Send changes to Node-RED, false=Don't send. Default=true\n     * @param {boolean} [showLog] true=Output changes to log, false=stop. Default=true. Log level is 2 (Info)\n     * @returns {boolean} True if the watch is on, false otherwise\n     */\n    uiWatch(cssSelector, startStop = 'toggle', send = true, showLog = true) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.querySelector(cssSelector)\n        if (!targetNode) {\n            log('warn', 'uibuilder.module.js:uiWatch', `CSS Selector '${cssSelector}' not found.`)()\n            return false\n        }\n\n        if (startStop === 'toggle' || startStop === undefined || startStop === null) {\n            if (this.#uiObservers[cssSelector]) startStop = false\n            else startStop = true\n        }\n\n        // Need a ref to the Uib this\n        const that = this\n\n        if (startStop === true) {\n            // Create an observer instance\n            this.#uiObservers[cssSelector] = new MutationObserver( function( mutationList /* , observer */ ) {\n                const out = []\n\n                mutationList.forEach( mu => {\n                    // console.log({ mu })\n                    const oMu = {\n                        type: mu.type,\n                        oldValue: mu.oldValue !== null ? mu.oldValue : undefined,\n                    }\n\n                    if (mu.addedNodes.length > 0) {\n                        oMu.addedNodes = []\n                        mu.addedNodes.forEach( (an, i) => {\n                            oMu.addedNodes.push(_ui.nodeGet(mu.addedNodes[i]))\n                        })\n                    }\n\n                    if (mu.removedNodes.length > 0) {\n                        oMu.removedNodes = []\n                        mu.removedNodes.forEach( (an, i) => {\n                            oMu.removedNodes.push(_ui.nodeGet(mu.removedNodes[i]))\n                        })\n                    }\n\n                    if ( mu.type === 'attributes' ) {\n                        oMu.attributeName = mu.attributeName\n                        // @ts-ignore\n                        oMu.newValue = mu.target.attributes[mu.attributeName].value\n                    }\n\n                    out.push(oMu)\n                })\n\n                // Custom event\n                that._dispatchCustomEvent('uibuilder:domChange', out)\n                // Send a msg back to node-red\n                if (send === true) {\n                    that.send({\n                        _ui: {\n                            cssSelector: cssSelector,\n                            uiChanges: out\n                        },\n                        topic: that.topic || `DOM Changes for '${cssSelector}'`,\n                    })\n                }\n                // Log to info\n                if (showLog === true) {\n                    log('info', 'uibuilder.module.js:uiWatch', `DOM Changes for '${cssSelector}'`, { uiChanges: out }, { mutationList })()\n                }\n            } )\n\n            // Start observing the target node for configured mutations\n            this.#uiObservers[cssSelector].observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:uiWatch', `Started Watching DOM changes for '${cssSelector}'`)()\n        } else {\n            this.#uiObservers[cssSelector].disconnect()\n            delete this.#uiObservers[cssSelector]\n            log('trace', 'uibuilder.module.js:uiWatch', `Stopped Watching DOM changes for '${cssSelector}'`)()\n        }\n\n        return startStop\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- HTML cache and DOM watch --------- //\n\n    /** Clear the saved DOM from localStorage */\n    clearHtmlCache() {\n        this.removeStore('htmlCache')\n        log('trace', 'uibuilder.module.js:clearHtmlCache', 'HTML cache cleared')()\n    }\n\n    /** Restore the complete DOM (the whole web page) from browser localStorage if available */\n    restoreHtmlFromCache() {\n        // Is the html cached? If so, restore it\n        const htmlCache = this.getStore('htmlCache')\n        if (htmlCache) {\n            const targetNode = document.getElementsByTagName('html')[0]\n            // Restore the entire HTML\n            targetNode.innerHTML = htmlCache\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'Restored HTML from cache')()\n        } else {\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'No cache to restore')()\n        }\n    }\n\n    /** Save the current DOM state to browser localStorage.\n     * localStorage is persistent and so can be recovered even after a browser restart.\n     */\n    saveHtmlCache() {\n        // Save the updated entire HTML in localStorage\n        this.setStore('htmlCache', document.documentElement.innerHTML)\n    }\n\n    /** Use the Mutation Observer browser API to watch for and save changes to the HTML\n     * Once the observer is created, it will be reused.\n     * Sending true or undefined will turn on the observer, false turns it off.\n     * saveHtmlCache is called whenever anything changes in the dom. This allows\n     * users to call restoreHtmlFromCache() on page load if desired to completely reload\n     * to the last saved state.\n     * @param {boolean} startStop true=start watching the DOM, false=stop\n     */\n    watchDom(startStop) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.documentElement\n\n        // Need a ref to the Uib this\n        const that = this\n\n        // Create an observer instance\n        if (!this._htmlObserver) {\n            this._htmlObserver = new MutationObserver( function(/* mutationList, observer */) {\n                // We don't need to know the details - so kill off any outstanding mutation records\n                this.takeRecords()\n                // Save the updated entire HTML in localStorage\n                that.saveHtmlCache()\n            } )\n        }\n\n        if (startStop === true || startStop === undefined) {\n            // Start observing the target node for configured mutations\n            this._htmlObserver.observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:watchDom', 'Started Watching and saving DOM changes')()\n        } else {\n            this._htmlObserver.disconnect()\n            log('trace', 'uibuilder.module.js:watchDom', 'Stopped Watching and saving DOM changes')()\n        }\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- Message Handling (To/From Node-RED) -------- //\n\n    /** Handles original control msgs (not to be confused with \"new\" msg._uib controls)\n     * @param {*} receivedCtrlMsg The msg received on the socket.io control channel\n     */\n    _ctrlMsgFromServer(receivedCtrlMsg) {\n\n        // Make sure that msg is an object & not null\n        if (receivedCtrlMsg === null) {\n            receivedCtrlMsg = {}\n        } else if (typeof receivedCtrlMsg !== 'object') {\n            const msg = {}\n            msg['uibuilderCtrl:' + this._ioChannels.control] = receivedCtrlMsg\n            receivedCtrlMsg = msg\n        }\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedCtrlMsg)\n\n        this.set('ctrlMsg', receivedCtrlMsg)\n        this.set('msgsCtrlReceived', ++this.msgsCtrlReceived)\n\n        log('trace', 'Uib:ioSetup:_ctrlMsgFromServer', `Channel '${this._ioChannels.control}'. Received control msg #${this.msgsCtrlReceived}`, receivedCtrlMsg)()\n\n        /** Process control msg types */\n        switch (receivedCtrlMsg.uibuilderCtrl) {\n            // Node-RED is shutting down\n            case 'shutdown': {\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, '\u274C Received \"shutdown\" from server')()\n                this.set('serverShutdown', undefined)\n                break\n            }\n\n            /** We are connected to the server - 1st msg from server */\n            case 'client connect': {\n                log('trace', `Uib:ioSetup:${this._ioChannels.control}`, 'Received \"client connect\" from server')()\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, `\u2705 Server connected. Version: ${receivedCtrlMsg.version}\\nServer time: ${receivedCtrlMsg.serverTimestamp}, Sever time offset: ${this.serverTimeOffset} hours`)()\n\n                if ( !Uib._meta.version.startsWith(receivedCtrlMsg.version.split('-')[0]) ) {\n                    log('warn', `Uib:ioSetup:${this._ioChannels.control}`, `Server version (${receivedCtrlMsg.version}) not the same as the client version (${Uib._meta.version})`)()\n                }\n\n                if (this.autoSendReady === true) { // eslint-disable-line no-lonely-if\n                    log('trace', `Uib:ioSetup:${this._ioChannels.control}/client connect`, 'Auto-sending ready-for-content/replay msg to server')\n                    // @since 0.4.8c Add cacheControl property for use with node-red-contrib-infocache\n                    // @since 6.1.0 Don't bother, we use the \"client connect\" msg\n                    // this._send({\n                    //     'uibuilderCtrl': 'ready for content',\n                    //     'cacheControl': 'REPLAY',\n                    // }, this._ioChannels.control)\n                }\n\n                break\n            }\n\n            default: {\n                log('trace', `uibuilderfe:ioSetup:${this._ioChannels.control}`, `Received ${receivedCtrlMsg.uibuilderCtrl} from server`)\n                // Anything else to do for other control msgs?\n            }\n        } // ---- End of process control msg types ---- //\n    } // -- End of websocket receive CONTROL msg from Node-RED -- //\n\n    /** Do we want to process something? Check pageName, clientId, tabId. Defaults to yes.\n     * @param {*} obj Either a msg._ui or msg._uib object to check\n     * @returns {boolean} True if we should process the inbound _ui/_uib msg, false if not.\n     */\n    _forThis(obj) {\n        let r = true\n\n        // Is this msg for this pageName?\n        if (obj.pageName && obj.pageName !== this.pageName) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this page')()\n            r = false\n        }\n\n        // Is this msg for this clientId?\n        if (obj.clientId && obj.clientId !== this.clientId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this clientId')()\n            r = false\n        }\n\n        // Is this msg for this tabId?\n        if (obj.tabId && obj.tabId !== this.tabId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this tabId')()\n            r = false\n        }\n\n        return r\n    }\n\n    // Handle received messages - Process some msgs internally, emit specific events on document that make it easy for coders to use\n    _msgRcvdEvents(msg) {\n        // Message received\n        this._dispatchCustomEvent('uibuilder:stdMsgReceived', msg)\n\n        // Topic\n        if ( msg.topic ) this._dispatchCustomEvent(`uibuilder:msg:topic:${msg.topic}`, msg)\n\n        // Handle msg._uib special requests\n        if (msg._uib) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._uib)) return\n\n            /** Process a client reload request from Node-RED - as the page is reloaded, everything else is ignored\n             * Note that msg._ui.reload is also actioned via the _ui processing below */\n            if (msg._uib.reload === true) {\n                log('trace', 'Uib:_msgRcvdEvents:_uib:reload', 'reloading')()\n                location.reload()\n                return\n            }\n\n            // Process msg._uib.command messages - allows Node-RED to run uibuilder FE functions\n            if (msg._uib.command) {\n                this._uibCommand(msg)\n                return\n            }\n\n            // Better to request via msg._ui - these are for backwards compatibility\n            if ( msg._uib.componentRef === 'globalNotification' ) {\n                _ui.showDialog('notify', msg._uib.options, msg)\n            }\n            if ( msg._uib.componentRef === 'globalAlert' ) {\n                _ui.showDialog('alert', msg._uib.options, msg)\n            }\n        }\n\n        // Handle msg._ui requests\n        if ( msg._ui ) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._ui)) return\n\n            log('trace', 'Uib:_msgRcvdEvents:_ui', 'Calling _uiManager')()\n            this._dispatchCustomEvent('uibuilder:msg:_ui', msg)\n            _ui._uiManager(msg)\n        }\n    } // --- end of _msgRcvdEvents ---\n\n    /** Internal send fn. Send a standard or control msg back to Node-RED via Socket.IO\n     * NR will generally expect the msg to contain a payload topic\n     * @param {object} msgToSend The msg object to send.\n     * @param {string} [channel=uiBuilderClient] The Socket.IO channel to use, must be in self.ioChannels or it will be ignored\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    _send(msgToSend, channel, originator = '') {\n        if (channel === null || channel === undefined) channel = this._ioChannels.client\n\n        // Make sure msgToSend is an object\n        if (channel === this._ioChannels.client) {\n            msgToSend = makeMeAnObject(msgToSend, 'payload')\n        } else if (channel === this._ioChannels.control) {\n            msgToSend = makeMeAnObject(msgToSend, 'uibuilderCtrl')\n            if (!Object.prototype.hasOwnProperty.call(msgToSend, 'uibuilderCtrl')) {\n                msgToSend.uibuilderCtrl = 'manual send'\n            }\n            // help remember where this came from as ctrl msgs can come from server or client\n            msgToSend.from = 'client'\n        }\n\n        /** since 2020-01-02 Added _socketId which should be the same as the _socketId on the server */\n        msgToSend._socketId = this._socket.id\n\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n\n        // Add the originator metadata if required\n        if (originator === '' && this.originator !== '') originator = this.originator\n        if (originator !== '') Object.assign(msgToSend, { '_uib': { 'originator': originator } })\n\n        // If the msg does not have a topic - see if we want to add one\n        if ( !Object.prototype.hasOwnProperty.call(msgToSend, 'topic') ) {\n            // From the default (`uibuilder.set('topic', 'some topic')`)\n            if (this.topic !== undefined && this.topic !== '') msgToSend.topic = this.topic\n            else {\n                // Did the last inbound msg have a topic?\n                if ( Object.prototype.hasOwnProperty.call(this, 'msg') && Object.prototype.hasOwnProperty.call(this.msg, 'topic') ) {\n                    msgToSend.topic = this.msg.topic\n                }\n            }\n        }\n\n        // If a standard send & _ui property exists, make sure to add _ui.from = 'client'\n        if (msgToSend._ui) msgToSend._ui.from = 'client'\n\n        // Track how many messages have been sent & last msg sent\n        let numMsgs\n        if (channel === this._ioChannels.client) {\n            this.set('sentMsg', msgToSend)\n            numMsgs = this.set('msgsSent', ++this.msgsSent)\n        } else if (channel === this._ioChannels.control) {\n            this.set('sentCtrlMsg', msgToSend)\n            numMsgs = this.set('msgsSentCtrl', ++this.msgsSentCtrl)\n        }\n        log('trace', 'Uib:_send', ` Channel '${channel}'. Sending msg #${numMsgs}`, msgToSend)()\n\n        this._socket.emit(channel, msgToSend)\n    } // --- End of Send Msg Fn --- //\n\n    /** Callback handler for messages from Node-RED\n     * NOTE: `this` is the class here rather the `socket` as would be normal since we bind the correct `this` in the call.\n     *       Use this._socket if needing reference to the socket.\n     * @callback ioSetupFromServer Called from ioSetup/this._socket.on(this.#ioChannels.server, this.stdMsgFromServer.bind(this))\n     * @param {object} receivedMsg The msg object from Node-RED\n     * @this Uib\n     */\n    _stdMsgFromServer(receivedMsg) {\n\n        // Make sure that msg is an object & not null\n        receivedMsg = makeMeAnObject(receivedMsg, 'payload')\n\n        // Don't process if the inbound msg is not for us\n        if (receivedMsg._uib && !this._forThis(receivedMsg._uib)) return\n        if (receivedMsg._ui && !this._forThis(receivedMsg._ui)) return\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedMsg)\n\n        // Track how many messages have been received\n        this.set('msgsReceived', ++this.msgsReceived)\n\n        // Emit specific document events on msg receipt that make it easy for coders to use\n        this._msgRcvdEvents(receivedMsg)\n\n        if ( !('_ui' in receivedMsg && !('payload' in receivedMsg)) ) {\n            // Save the msg for further processing\n            this.set('msg', receivedMsg)\n        }\n\n        log('info', 'Uib:ioSetup:stdMsgFromServer', `Channel '${this._ioChannels.server}'. Received msg #${this.msgsReceived}.`, receivedMsg)()\n\n        // ! NOTE: Don't try to handle specialist messages here. See _msgRcvdEvents.\n    } // -- End of websocket receive DATA msg from Node-RED -- //\n\n    /** Process msg._uib.command - Remember to update #extCommands with new allowed commands\n     * @param {object} msg Msg from Node-RED containing a msg._uib object\n     */\n    _uibCommand(msg) {\n        if (!msg._uib || !msg._uib.command) {\n            log('error', 'uibuilder:_uibCommand', 'Invalid command message received', { msg })()\n            msg.payload = msg.error = 'Invalid command message received'\n            this.send(msg)\n            return\n        }\n        const cmd = msg._uib.command\n        // Disallowed command request outputs error and ignores the msg (NB: Case must match)\n        if (!this.#extCommands.includes(cmd.trim())) {\n            log('error', 'Uib:_uibCommand', `Command '${cmd} is not allowed to be called externally`)()\n            return\n        }\n        const prop = msg._uib.prop\n        const value = msg._uib.value\n        const quiet = msg._uib.quiet ?? false\n        let response, info\n\n        // Don't forget to update `#extCommands`, `docs/client-docs/control-from-node-red.md` & `functions.md`\n        switch (cmd) {\n            case 'elementIsVisible': {\n                response = this.elementIsVisible(prop)\n                // info = `Element \"${prop}\" ${response ? 'is visible' : 'is not visible'}`\n                break\n            }\n\n            case 'elementExists': {\n                response = this.elementExists(prop, false)\n                info = `Element \"${prop}\" ${response ? 'exists' : 'does not exist'}`\n                break\n            }\n\n            case 'get': {\n                response = this.get(prop)\n                break\n            }\n\n            case 'getManagedVarList': {\n                if (prop === 'full') response = this.getManagedVarList()\n                else response = Object.values(this.getManagedVarList())\n                break\n            }\n\n            case 'getWatchedVars': {\n                if (prop === 'full') response = this.getWatchedVars()\n                else response = Object.values(this.getWatchedVars())\n                break\n            }\n\n            case 'htmlSend': {\n                response = this.htmlSend('', false)\n                break\n            }\n\n            case 'include': {\n                // include is async\n                response = _ui.include(prop, value)\n                break\n            }\n\n            case 'navigate': {\n                let newUrl\n                if (prop) newUrl = prop\n                else if (value) newUrl = value\n                response = this.navigate(newUrl)\n                break\n            }\n\n            case 'scrollTo': {\n                response = this.scrollTo(prop, value)\n                break\n            }\n\n            case 'set': {\n                let store = false\n                let autoload = false\n                if (msg._uib.options && msg._uib.options.store) {\n                    if (msg._uib.options.store === true) store = true\n                    if (msg._uib.options.autoload === true) autoload = true\n                }\n                response = this.set(prop, value, store, autoload)\n                break\n            }\n\n            case 'showMsg': {\n                response = this.showMsg(value, prop)\n                break\n            }\n\n            case 'showStatus': {\n                response = this.showStatus(value, prop)\n                break\n            }\n\n            case 'uiGet': {\n                response = _ui.uiGet(prop, value)\n                break\n            }\n\n            case 'uiWatch': {\n                response = this.uiWatch(prop)\n                break\n            }\n\n            case 'watchUrlHash': {\n                response = this.watchUrlHash(prop)\n                break\n            }\n\n            default: {\n                log('warning', 'Uib:_uibCommand', `Command '${cmd}' not yet implemented`)()\n                break\n            }\n        }\n\n        if (quiet !== true) {\n            if (response === undefined) {\n                response = `'${prop}' is undefined`\n            }\n            if (Object(response).constructor === Promise) {\n                // response = `'${cmd} ${prop}' submitted. Cmd is async, no response available`\n                response\n                    .then( (/** @type {any} */ data) => {\n                        msg.payload = msg._uib.response = data\n                        msg.info = msg._uib.info = info\n                        if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                        this.send(msg)\n                        return true\n                    })\n                    .catch( err => {\n                        log(0, 'Uib:_uibCommand', 'Error: ', err)()\n                    })\n            } else {\n                msg.payload = msg._uib.response = response\n                msg.info = msg._uib.info = info\n                if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                this.send(msg)\n            }\n        }\n    } // --- end of _uibCommand ---\n\n    /** Send log text to uibuilder's beacon endpoint (works even if socket.io not connected)\n     * @param {string} txtToSend Text string to send\n     * @param {string|undefined} logLevel Log level to use. If not supplied, will default to debug\n     */\n    beaconLog(txtToSend, logLevel) {\n        if (!logLevel) logLevel = 'debug'\n        navigator.sendBeacon('./_clientLog', `${logLevel}::${txtToSend}`)\n    }\n\n    /** Easily send the entire DOM/HTML msg back to Node-RED\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     * @param {boolean} [send] If true (default) directly send response to Node-RED. Is false when calling from Node-RED as a command.\n     * @returns {string} The HTML as a string\n     */\n    htmlSend(originator = '', send = true) {\n        const out = `<!doctype html>\\n${document.documentElement.outerHTML}`\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            payload: out,\n            length: out.length,\n            topic: this.topic,\n        }\n\n        log('trace', 'Uib:htmlSend', 'Sending full HTML to Node-RED', msg)()\n\n        if (send === true) this._send(msg, this._ioChannels.client, originator)\n        return out\n    }\n\n    /** Send log info back to Node-RED over uibuilder's websocket control output (Port #2)\n     * @param {...*} arguments All arguments passed to the function are added to the msg.payload\n     */\n    logToServer() {\n        this.sendCtrl({\n            uibuilderCtrl: 'client log message',\n            payload: arguments,\n            // \"version\":\"6.1.0-iife.min\",\n            _socketId: this._socket.id,\n            // \"ip\":\"::1\",\n            clientId: this.clientId,\n            tabId: this.tabId,\n            // \"url\":\"esp-test\",\n            pageName: this.pageName,\n            connections: this.connectedNum,\n            lastNavType: this.lastNavType,\n        })\n    }\n\n    /** Easily send a msg back to Node-RED on a DOM event\n     * @example In plain HTML/JavaScript\n     *    `<button id=\"button1\" name=\"button 1\" data-fred=\"jim\"></button>`\n     *    $('#button1').onclick = (evt) => {\n     *      uibuilder.eventSend(evt)\n     *    }\n     * @example\n     * In VueJS: `<b-button id=\"myButton1\" @click=\"doEvent\" data-something=\"hello\"></b-button>`\n     * In VueJS methods: `doEvent: uibuilder.eventSend,`\n     *\n     * All `data-` attributes will be passed back to Node-RED,\n     *    use them instead of arguments in the click function.\n     *    All target._ui custom properties are also passed back to Node-RED.\n     *\n     * @param {MouseEvent|any} domevent DOM Event object\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    eventSend(domevent, originator = '') { // eslint-disable-line sonarjs/cognitive-complexity\n        // @ts-ignore Handle case where vue messes up `this`\n        if ( this.$attrs ) {\n            log('error', 'Uib:eventSend', '`this` has been usurped by VueJS. Make sure that you wrap the call in a function: `doEvent: function (event) { uibuilder.eventSend(event) },`' )()\n            return\n        }\n        if (!domevent && !event) {\n            log('warn', 'Uib:eventSend', 'Neither the domevent nor the hidden event properties are set. You probably called this function directly rather than applying to an on click event.' )()\n            return\n        }\n        // Handle no argument, e.g. <button onClick=\"uibuilder.eventSend()\"> - event is a hidden variable when fn used in addEventListener\n        if (!domevent || !domevent.constructor) domevent = event\n\n        // The argument must be a DOM event\n        if ((!domevent.constructor.name.endsWith('Event')) || (!domevent.currentTarget)) {\n            log('warn', 'Uib:eventSend', `ARGUMENT NOT A DOM EVENT - use data attributes not function arguments to pass data. Arg Type: ${domevent.constructor.name}`, domevent)()\n            return\n        }\n\n        // Prevent default event action\n        domevent.preventDefault()\n\n        // The target element\n        const target = domevent.currentTarget\n\n        // Get target properties - only shows custom props not element default ones\n        const props = {}\n        Object.keys(target).forEach( key => {\n            if (key.startsWith('_')) return // Exclude private\n            props[key] = target[key]\n        })\n\n        // Attempt to get target attributs - can fail for certain target types\n        const ignoreAttribs = ['class', 'id', 'name']\n        let attribs\n        try {\n            attribs = Object.assign({},\n                ...Array.from(target.attributes,\n                    ( { name, value } ) => {\n                        if ( !ignoreAttribs.includes(name) ) {\n                            return ({ [name]: value })\n                        }\n                        return undefined\n                    }\n                )\n            )\n        } catch (e) {}\n\n        // If target embedded in a form, include the form data\n        let form\n        const frmVals = []\n        if ( target.form ) {\n            form = {}\n            form.valid = target.form.checkValidity()\n            Object.values(target.form).forEach( (frmEl, i) => {\n                const id = frmEl.id !== '' ? frmEl.id : (frmEl.name !== '' ? frmEl.name : `${i}-${frmEl.type}`)\n\n                // We must have both an element id (we may have forced one above) AND\n                // the element type MUST be not undefined - to allow for the extra properties added by frameworks such as Svelte\n                if (id !== '' && frmEl.type) {\n                    // Stupid HTML doesn't use value attrib for checkboxes. So override if value is set to default\n                    if ('checked' in frmEl && frmEl.value === 'on') frmEl.value = frmEl.checked.toString()\n\n                    frmVals.push( { key: id, val: frmEl.value } ) // simplified for addition to msg.payload\n\n                    form[id] = {\n                        'id': frmEl.id,\n                        'name': frmEl.name,\n                        'value': frmEl.value,\n                        'valid': frmEl.checkValidity(),\n                        'type': frmEl.type,\n                    }\n\n                    if (form[id].valid === false) {\n                        const v = frmEl.validity\n                        form[id].validity = {\n                            badInput: v.badInput === true ? v.badInput : undefined,\n                            customError: v.customError === true ? v.customError : undefined,\n                            patternMismatch: v.patternMismatch === true ? v.patternMismatch : undefined,\n                            rangeOverflow: v.rangeOverflow === true ? v.rangeOverflow : undefined,\n                            rangeUnderflow: v.rangeUnderflow === true ? v.rangeUnderflow : undefined,\n                            stepMismatch: v.stepMismatch === true ? v.stepMismatch : undefined,\n                            tooLong: v.tooLong === true ? v.tooLong : undefined,\n                            tooShort: v.tooShort === true ? v.tooShort : undefined,\n                            typeMismatch: v.typeMismatch === true ? v.typeMismatch : undefined,\n                            valueMissing: v.valueMissing === true ? v.valueMissing : undefined,\n                        }\n                    }\n\n                    if (frmEl.dataset) form[id].data = frmEl.dataset\n                }\n            })\n        }\n\n        // Check for CSS Classes\n        let classes\n        try {\n            classes = Array.from(target.classList)\n        } catch (e) {}\n\n        // Each `data-xxxx` attribute is added as a property\n        let payload = { ...target.dataset }\n\n        // Handle Notification events\n        let nprops\n        if ( Object.prototype.toString.call(target) === '[object Notification]') {\n            // Fixed payload for convenience\n            payload = `notification-${target.userAction}`\n            // Capture the notification properties\n            nprops = {\n                // userAction: target.userAction, // uib custom prop: click, close or error\n                actions: target.actions,\n                badge: target.badge,\n                body: target.body,\n                data: target.data,\n                dir: target.dir,\n                icon: target.icon,\n                image: target.image,\n                lang: target.lang,\n                renotify: target.renotify,\n                requireInteraction: target.requireInteraction,\n                silent: target.silent,\n                tag: target.tag,\n                timestamp: target.timestamp,\n                title: target.title,\n                vibrate: target.vibrate,\n            }\n        }\n        // console.log(Object.prototype.toString.call(target))\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            // - this may be an empty Object if no data attributes defined\n            payload: payload,\n\n            _ui: {\n                type: 'eventSend',\n                id: target.id !== '' ? target.id : undefined,\n                name: target.name !== '' ? target.name : undefined,\n                slotText: target.textContent ? target.textContent.substring(0, 255) : undefined,\n\n                form: form,\n                props: props,\n                attribs: attribs,\n                classes: classes,\n\n                notification: nprops,\n\n                event: domevent.type,\n                altKey: domevent.altKey,\n                ctrlKey: domevent.ctrlKey,\n                shiftKey: domevent.shiftKey,\n                metaKey: domevent.metaKey,\n\n                pointerType: domevent.pointerType,\n                nodeName: target.nodeName,\n\n                clientId: this.clientId,\n                pageName: this.pageName,\n                tabId: this.tabId,\n            }\n        }\n\n        if (frmVals.length > 0) {\n            frmVals.forEach( entry => {\n                msg.payload[entry.key] = entry.val\n            })\n        }\n\n        if (domevent.type === 'change') {\n            // Checkboxes don't have a value!!\n            msg._ui.newValue = msg.payload.value = 'checked' in target ? target.checked : domevent.target.value\n        }\n\n        log('trace', 'Uib:eventSend', 'Sending msg to Node-RED', msg)()\n        if (target.dataset && target.dataset.length === 0) log('warn', 'Uib:eventSend', 'No payload in msg. data-* attributes should be used.')()\n\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Send a standard message to NR\n     * @example uibuilder.send({payload:'Hello'})\n     * @param {object} msg Message to send\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    send(msg, originator = '') {\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    // ! TODO: Rooms do not auto-reconnect. Add tracking and update _onConnect\n\n    // NOTE: Rooms only understood by server not client so we have to use custom emits\n    //       They do not auto-reconnect\n\n    /** Send a msg to a pre-defined Socket.IO room\n     * @link https://socket.io/docs/v4/rooms/\n     * @param {string} room Name of a Socket.IO pre-defined room.\n     * @param {*} msg Message to send\n     */\n    sendRoom(room, msg) {\n        this._socket.emit('uib-room-send', room, msg )\n    }\n\n    joinRoom(room) {\n        this._socket.emit('uib-room-join', room)\n    }\n\n    leaveRoom(room) {\n        this._socket.emit('uib-room-leave', room)\n    }\n\n    /** Send a control msg to NR\n     * @param {object} msg Message to send\n     */\n    sendCtrl(msg) {\n        this._send(msg, this._ioChannels.control)\n    }\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Socket.IO -------- //\n\n    /** Return the Socket.IO namespace\n     * The cookie method is the most reliable but this falls back to trying to work it\n     * out from the URL if cookies not available. That won't work if page is in a sub-folder.\n     * since 2017-10-21 Improve method to cope with more complex paths - thanks to Steve Rickus @shrickus\n     * since 2017-11-10 v1.0.1 Check cookie first then url. cookie works even if the path is more complex (e.g. sub-folder)\n     * since 2020-01-25 Removed httpRoot from namespace to prevent proxy induced errors\n     * @returns {string} Socket.IO namespace\n     */\n    _getIOnamespace() {\n\n        let ioNamespace\n\n        /** Try getting the namespace cookie. */\n        ioNamespace = this.cookies['uibuilder-namespace']\n\n        // if it wasn't available, try using the current url path\n        if (ioNamespace === undefined || ioNamespace === '') {\n            // split url path & eliminate any blank elements, and trailing or double slashes\n            const u = window.location.pathname.split('/')\n                .filter(function (t) { return t.trim() !== '' })\n\n            /** since v2.0.5 Extra check for 0 length, Issue #73. since 2017-11-06 If the last element of the path is an .html file name, remove it */\n            if (u.length > 0 && (u[u.length - 1].endsWith('.html'))) u.pop()\n\n            // Get the last part of the url path, this MUST match the namespace in uibuilder\n            ioNamespace = u.pop()\n\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via url path: ${ioNamespace}`)()\n        } else {\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via cookie: ${ioNamespace}`)()\n        }\n\n        this.url = ioNamespace\n        // Namespace HAS to start with a /\n        ioNamespace = '/' + ioNamespace\n\n        log('trace', 'uibuilder.module.js:getIOnamespace', `Final Socket.IO namespace: ${ioNamespace}`)()\n\n        return ioNamespace\n    } // --- End of set IO namespace --- //\n\n    /** Function used to check whether Socket.IO is connected to the server, reconnect if not (recursive)\n     * @param {number} [delay] Initial delay before checking (ms). Default=2000ms\n     * @param {number} [factor] Multiplication factor for subsequent checks (delay*factor). Default=1.5\n     * @param {number} [depth] Recursion depth\n     * @returns {boolean|undefined} Whether or not Socket.IO is connected to uibuilder in Node-RED\n     */\n    _checkConnect(delay, factor, depth = 1) {\n        if ( navigator.onLine === false ) return // Don't bother if we know we are offline\n\n        if (!delay) delay = this.retryMs\n        if (!factor) factor = this.retryFactor\n\n        log('trace', 'Uib:checkConnect', `Checking connection. Connected: ${this._socket.connected}. Timer: ${this.#timerid}. Depth: ${depth}. Delay: ${delay}. Factor: ${factor}`, this._socket)()\n\n        // If we are connected ...\n        if (this._socket.connected === true) {\n            // Clear the setTimeout\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this.set('ioConnected', true)\n            this.set('socketError', null)\n            return true\n        }\n\n        // ... we aren't connected so:\n        this.set('ioConnected', false)\n\n        // we only want one running at a time\n        if (this.#timerid) window.clearTimeout(this.#timerid)\n\n        // Create the new timer\n        this.#timerid = window.setTimeout(() => {\n            log('warn', 'Uib:checkConnect:setTimeout', `Socket.IO reconnection attempt. Current delay: ${delay}. Depth: ${depth}`)()\n\n            // this is necessary sometimes when the socket fails to connect on startup\n            this._socket.disconnect()\n\n            // Try to reconnect\n            this._socket.connect()\n\n            // don't need to check whether we have connected as the timer will have been cleared if we have\n            this.#timerid = null\n\n            // @ts-ignore Create new timer for next time round with extended delay\n            this._checkConnect(delay * factor, factor, depth++)\n        }, delay)\n\n        return false\n    } // --- End of checkConnect Fn--- //\n\n    // See message handling section for msg receipt handlers\n\n    /** Called by _ioSetup when Socket.IO connects to Node-RED */\n    _onConnect() {\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n        log('info', 'Uib:ioSetup', `\u2705 SOCKET CONNECTED. Connection count: ${this.connectedNum}, Is a Recovery?: ${this._socket.recovered}. \\nNamespace: ${this.ioNamespace}`)()\n        this._dispatchCustomEvent('uibuilder:socket:connected', { 'numConnections': this.connectedNum, 'isRecovery': this._socket.recovered })\n\n        this._checkConnect() // resets any reconnection timers & sets connected flag\n    }\n\n    /** Called by _ioSetup when Socket.IO disconnects from Node-RED\n     * @param {string} reason Disconnection title\n     */\n    _onDisconnect(reason) {\n        // reason === 'io server disconnect' - redeploy of Node instance\n        // reason === 'transport close' - Node-RED terminating\n        // reason === 'ping timeout' - didn't receive a pong response?\n        log('info', 'Uib:ioSetup:socket-disconnect', `\u26D4 Socket Disconnected. Reason: ${reason}`)()\n\n        this._dispatchCustomEvent('uibuilder:socket:disconnected', reason)\n\n        /** A workaround for SIO's failure to reconnect after a disconnection */\n        this._checkConnect()\n    }\n\n    /** Setup Socket.io\n     * since v2.0.0-beta2 Moved to a function and called by the user (uibuilder.start()) so that namespace & path can be passed manually if needed\n     * @returns {boolean} Attaches socket.io manager to self._socket and updates self.ioNamespace & self.ioPath as needed\n     */\n    _ioSetup() {\n\n        // Just a notification, actual load is done outside the class (see start of file)\n        if (io === undefined) {\n            log('error', 'Uib:ioSetup', 'Socket.IO client not loaded, Node-RED comms will not work')()\n            return false\n        }\n\n        // If socket is already set up, close it and remove all of the listeners\n        if (this._socket) {\n            log('trace', 'Uib:ioSetup', 'Removing listeners in preparation for redoing Socket.IO connections')()\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this._socket.close()\n            this._socket.offAny()\n            this._socket = undefined\n            this.set('ioConnected', false)\n        }\n\n        // Update the URL path to make sure we have the right one\n        this.socketOptions.path = this.ioPath\n\n        // NOTE: this._socket.auth is now set by callback and so automatically updated for each client (re)connection. No need to set here\n\n        // Create the socket - make sure client uses Socket.IO version from the uibuilder module (using path)\n        log('trace', 'Uib:ioSetup', `About to create IO object. Transports: [${this.socketOptions.transports.join(', ')}]`)()\n        this._socket = io(this.ioNamespace, this.socketOptions)\n\n        this._connectGlobal()\n\n        /** When the socket is connected - set ioConnected flag and reset connect timer  */\n        this._socket.on('connect', this._onConnect.bind(this))\n\n        // RECEIVE a STANDARD, non-control msg from Node-RED server\n        this._socket.on(this._ioChannels.server, this._stdMsgFromServer.bind(this))\n\n        // RECEIVE a CONTROL msg from Node-RED server - see also sendCtrl()\n        this._socket.on(this._ioChannels.control, this._ctrlMsgFromServer.bind(this))\n\n        // When the socket is disconnected ..............\n        this._socket.on('disconnect', this._onDisconnect.bind(this))\n\n        // Socket.io connection error - probably the wrong ioPath - or client is offline\n        this._socket.on('connect_error', (err) => {\n            if ( navigator.onLine === false ) return // Don't bother with an error if we know we are offline\n            log('error', 'Uib:ioSetup:connect_error', `\u274C Socket.IO Connect Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket connect error processing ---\n\n        // Socket.io error - from the server (socket.use middleware triggered an error response)\n        this._socket.on('error', (err) => {\n            log('error', 'Uib:ioSetup:error', `\u274C Socket.IO Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket error processing ---\n\n        // Ensure we are connected, retry if not\n        this._checkConnect()\n\n        return true\n\n        /* We really don't need these, just for interest\n            self._socket.io.on('packet', function onPacket(data){\n                // we get one of these for each REAL msg (not ping/pong)\n                console.debug('PACKET', data)\n            })\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n                //console.dir(self._socket)\n            }) // --- End of socket pong processing ---\n            self._socket.io.on('packet', function(data){\n                // We get one of these for actual messages, not ping/pong\n                console.debug('PACKET', data)\n            })\n            self._socket.on('connect_timeout', function(timeout) {\n                console.debug('SOCKET CONNECT TIMEOUT - Namespace: ' + ioNamespace + ', Timeout: ' + timeout)\n            }) // --- End of socket connect timeout processing ---\n            self._socket.on('reconnect', function(attemptNum) {\n                console.debug('SOCKET RECONNECTED - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect processing ---\n            self._socket.on('reconnect_attempt', function(attemptNum) {\n                console.debug('SOCKET RECONNECT ATTEMPT - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect_attempt processing ---\n            self._socket.on('reconnecting', function(attemptNum) {\n                console.debug('SOCKET RECONNECTING - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnecting processing ---\n            self._socket.on('reconnect_error', function(err) {\n                console.debug('SOCKET RECONNECT ERROR - Namespace: ' + ioNamespace + ', Reason: ' + err.message)\n                //console.dir(err)\n            }) // --- End of socket reconnect_error processing ---\n            self._socket.on('reconnect_failed', function() {\n                console.debug('SOCKET RECONNECT FAILED - Namespace: ' + ioNamespace)\n            }) // --- End of socket reconnect_failed processing ---\n            self._socket.on('ping', function() {\n                console.debug('SOCKET PING')\n            }) // --- End of socket ping processing ---\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n            }) // --- End of socket pong processing ---\n            */\n    } // ---- End of ioSetup ---- //\n\n    /** Connect to global namespace & create global listener that updates the `globalMsg` var */\n    _connectGlobal() {\n        this._socketGlobal = io('/', this.socketOptions)\n        this._socketGlobal.onAny( (...args) => {\n            this.set('globalMsg', args.slice(0, -1))\n        })\n    }\n\n    /** Manually (re)connect socket.io */\n    connect() {\n        // ? Should I use this._checkConnect()?\n        this._socket.connect()\n    }\n\n    /** Manually disconnect socket.io and stop any auto-reconnect timer */\n    disconnect() {\n        this._socket.disconnect()\n        // As this is a manual disconnect, stop any reconnect timers\n        if (this.#timerid) window.clearTimeout(this.#timerid)\n    }\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Class construction & startup method -------- //\n\n    constructor() {\n        log('trace', 'Uib:constructor', 'Starting')()\n\n        // Track whether the client is online or offline\n        window.addEventListener('offline', (e) => {\n            this.set('online', false)\n            this.set('ioConnected', false)\n            log('warn', 'Browser', 'DISCONNECTED from network')()\n        })\n        window.addEventListener('online', (e) => {\n            this.set('online', true)\n            log('warn', 'Browser', 'Reconnected to network')()\n            this._checkConnect()\n        })\n\n        document.cookie.split(';').forEach((c) => {\n            const splitC = c.split('=')\n            this.cookies[splitC[0].trim()] = splitC[1]\n        })\n\n        /** Client ID set by uibuilder - lasts until browser profile is closed, applies to all tabs */\n        this.set('clientId', this.cookies['uibuilder-client-id'])\n        log('trace', 'Uib:constructor', 'Client ID: ', this.clientId)()\n\n        /** Tab ID - lasts while the tab is open (even if reloaded)\n         * WARNING: Duplicating a tab retains the same tabId\n         */\n        this.set('tabId', window.sessionStorage.getItem('tabId'))\n        if (!this.tabId) {\n            this.set('tabId', `t${Math.floor(Math.random() * 1000000)}`)\n            window.sessionStorage.setItem('tabId', this.tabId)\n        }\n\n        // document.addEventListener('pagehide', (event) => {\n        //     // console.log(`pagehide. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pagehide. From Cache?: ${event.persisted}`)\n        // })\n        // document.addEventListener('pageshow', (event) => {\n        //     // console.log(`pageshow. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pageshow. From Cache?: ${event.persisted}`)\n        // })\n        document.addEventListener('load', () => {\n            this.set('isVisible', true)\n        })\n        document.addEventListener('visibilitychange', () => {\n            // hidden=unload, minimise. visible=un-minimise (not fired on load)\n            this.set('isVisible', document.visibilityState === 'visible')\n            this.sendCtrl({ uibuilderCtrl: 'visibility', isVisible: this.isVisible })\n            // navigator.userActivation is experimental Chromium only\n            // console.log('visibilitychange', ':', `Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n            // navigator.sendBeacon('./_clientLog', `${(new Date()).toISOString()} Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n        })\n\n        // Set a listener to update showStatus table if it is active\n        document.addEventListener('uibuilder:propertyChanged', (event) => {\n            if (!this.#isShowStatus) return\n\n            // @ts-ignore\n            if (event.detail.prop in this.#showStatus) {\n                // @ts-ignore\n                document.querySelector(`td[data-vartype=\"${event.detail.prop}\"]`).innerText = JSON.stringify(event.detail.value)\n            }\n        })\n\n        this.set('ioNamespace', this._getIOnamespace())\n\n        //#region - Try to make sure client uses Socket.IO client version from the uibuilder module (using cookie or path) @since v2.0.0 2019-02-24 allows for httpNodeRoot\n\n        /** httpNodeRoot (to set path) */\n        if ('uibuilder-webRoot' in this.cookies) {\n            this.set('httpNodeRoot', this.cookies['uibuilder-webRoot'])\n            log('trace', 'Uib:constructor', `httpNodeRoot set by cookie to \"${this.httpNodeRoot}\"`)()\n        } else {\n            // split current url path, eliminate any blank elements and trailing or double slashes\n            const fullPath = window.location.pathname.split('/').filter(function (t) { return t.trim() !== '' })\n            /** handle url includes file name - @since v2.0.5 Extra check for 0 length, Issue #73. */\n            if (fullPath.length > 0 && fullPath[fullPath.length - 1].endsWith('.html')) fullPath.pop()\n            fullPath.pop() // gives the last path section of the url\n            this.set('httpNodeRoot', `/${fullPath.join('/')}`)\n            log('trace', '[Uib:constructor]', `httpNodeRoot set by URL parsing to \"${this.httpNodeRoot}\". NOTE: This may fail for pages in sub-folders.`)()\n        }\n        this.set('ioPath', urlJoin(this.httpNodeRoot, Uib._meta.displayName, 'vendor', 'socket.io'))\n        log('trace', 'Uib:constructor', `ioPath: \"${this.ioPath}\"`)()\n\n        //#endregion\n\n        // Work out pageName\n        this.set('pageName', window.location.pathname.replace(`${this.ioNamespace}/`, ''))\n        if ( this.pageName.endsWith('/') ) this.set('pageName', `${this.pageName}index.html`)\n        if ( this.pageName === '' ) this.set('pageName', 'index.html')\n\n        // Attempt to restore autoload variables\n        try {\n            const autoloadVars = this.getStore('_uibAutoloadVars')\n            if (Object.keys(autoloadVars).length > 0) {\n                Object.keys(autoloadVars).forEach( (id) => {\n                    this.set(id, this.getStore(id))\n                })\n            }\n        } catch (e) {}\n\n        this._dispatchCustomEvent('uibuilder:constructorComplete')\n\n        log('trace', 'Uib:constructor', 'Ending')()\n    }\n\n    /** Start up Socket.IO comms and listeners\n     * This has to be done separately because if running from a web page in a sub-folder of src/dist, uibuilder cannot\n     * necessarily work out the correct ioPath to use.\n     * Also, if cookies aren't permitted in the browser, both ioPath and ioNamespace may need to be specified.\n     * @param {object} [options] The start options object.\n     * @returns {void}\n     */\n    start(options) {\n        log('trace', 'Uib:start', 'Starting')()\n\n        // Cancel the msg event handler if already present\n        if ( this.#MsgHandler ) this.cancelChange('msg', this.#MsgHandler)\n\n        if (this.started === true) {\n            log('info', 'Uib:start', 'Start function already called. Resetting Socket.IO and msg handler.')()\n        }\n\n        log('log', 'Uib:start', 'Cookies: ', this.cookies, `\\nClient ID: ${this.clientId}`)()\n        log('trace', 'Uib:start', 'ioNamespace: ', this.ioNamespace, `\\nioPath: ${this.ioPath}`)()\n\n        // Handle options\n        if (options) {\n            if (options.ioNamespace) this.set('ioNamespace', options.ioNamespace)\n            if (options.ioPath) this.set('ioPath', options.ioPath)\n            if (options.nopolling && this.socketOptions.transports[0] === 'polling') this.socketOptions.transports.shift()\n            // See below for handling of options.loadStylesheet\n        }\n\n        // Do we need to load styles?\n        if ( document.styleSheets.length >= 1 || (document.styleSheets.length === 1 && document.styleSheets[0].cssRules.length === 0) ) {\n            log('info', 'Uib:start', 'Styles already loaded so not loading uibuilder default styles.')()\n        } else {\n            if (options && options.loadStylesheet === false) log('info', 'Uib:start', 'No styles loaded & options.loadStylesheet === false.')()\n            else {\n                log('info', 'Uib:start', 'No styles loaded, loading uibuilder default styles.')()\n                this.loadStyleSrc(`${this.httpNodeRoot}/uibuilder/uib-brand.min.css`)\n            }\n        }\n\n        /** Handle specialist messages like reload and _ui -> Moved to _msgRcvdEvents */\n\n        // Track last browser navigation type: navigate, reload, back_forward, prerender\n        // TODO Needs more work - updates on navigation needed?\n        const [entry] = performance.getEntriesByType('navigation')\n        // @ts-ignore\n        this.set('lastNavType', entry.type)\n\n        // Start up (or restart) Socket.IO connections and listeners. Returns false if io not found\n        this.set('started', this._ioSetup())\n\n        if ( this.started === true ) {\n            log('trace', 'Uib:start', 'Start completed. Socket.IO client library loaded.')()\n        } else {\n            log('error', 'Uib:start', 'Start completed. ERROR: Socket.IO client library NOT LOADED.')()\n        }\n\n        // Watch for URL hash changes in case using a front-end router. Updates watched var `urlHash` and socket.io `auth.urlHash`\n        this._watchHashChanges()\n\n        // Check if Vue is present (used for dynamic UI processing)\n        if (window['Vue']) {\n            this.set('isVue', true)\n            try {\n                this.set('vueVersion', window['Vue'].version)\n            } catch (e) { }\n            log('trace', 'Uib:start', `VueJS is loaded. Version: ${this.vueVersion}`)()\n        } else {\n            log('trace', 'Uib:start', 'VueJS is not loaded.')()\n        }\n\n        // Check if DOMPurify library is loaded\n        if (window['DOMPurify']) {\n            this.set('purify', true)\n            log('trace', 'Uib:start', 'DOMPurify is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'DOMPurify is not loaded.')()\n        }\n        // Check if Markdown-IT library is loaded\n        if (window['markdownit']) {\n            this.set('markdown', true)\n            log('trace', 'Uib:start', 'Markdown-IT is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'Markdown-IT is not loaded.')()\n        }\n\n        // if (window['DOMPurify']) {\n        //     this.set('purify', true)\n        //     log('trace', 'Uib:start', 'DOMPurify is loaded.')\n        // } else {\n        //     log('trace', 'Uib:start', 'DOMPurify is not loaded.')\n        // }\n\n        // Set up msg listener for the optional showMsg\n        this.onChange('msg', (msg) => {\n            if (this.#isShowMsg === true) {\n                const eMsg = document.getElementById('uib_last_msg')\n                if (eMsg) eMsg.innerHTML = this.syntaxHighlight(msg)\n            }\n        })\n\n        this._dispatchCustomEvent('uibuilder:startComplete')\n    }\n\n    //#endregion -------- ------------ -------- //\n} // ==== End of Class Uib ====\n\n//#region --- Wrap up - get things started ---\n\n// Create an instance (we will only ever want one)\nconst uibuilder = new Uib()\n\n// Assign reference to the instance to the global `window` object\n// Only useful if loading via <script> tag - prefer loading via `import uibuilder from ...`\nif (!window['uibuilder']) {\n    window['uibuilder'] = uibuilder\n} else {\n    log('error', 'uibuilder.module.js', '`uibuilder` already assigned to window. Have you tried to load it more than once?')\n}\nif (!window['uib']) {\n    window['uib'] = uibuilder\n} else {\n    log('warn', 'uibuilder.module.js', '`uib` shortcut already assigned to window.')\n}\n\n// Assign `$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$`.\nif (!window['$']) {\n    /** @type {HTMLElement} */\n    window['$'] = window['uibuilder'].$ // document.querySelector.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` or `uib.$` instead.')\n}\n// Assign `$$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$$']) {\n    /** @type {HTMLElement} */\n    window['$$'] = window['uibuilder'].$$ // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` or `uib.$$` instead.')\n}\n\n// Assign `$ui` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$ui']) {\n    /** @type {HTMLElement} */\n    window['$ui'] = window['uibuilder'].$ui // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$ui`, it is already in use. Use `uibuilder.$ui` or `uib.$ui` instead.')\n}\n\n// Can import as `import uibuilder from ...` OR `import {uibuilder} from ...`\nexport { uibuilder }\nexport default uibuilder\n\n// Attempt to run start fn\nuibuilder.start()\n\n// Add the class as a new Custom Element to the window object\ncustomElements.define('uib-var', UibVar)\n\n//#endregion --- Wrap up ---\n\n// EOF\n", "const PACKET_TYPES = Object.create(null); // no Map = no polyfill\nPACKET_TYPES[\"open\"] = \"0\";\nPACKET_TYPES[\"close\"] = \"1\";\nPACKET_TYPES[\"ping\"] = \"2\";\nPACKET_TYPES[\"pong\"] = \"3\";\nPACKET_TYPES[\"message\"] = \"4\";\nPACKET_TYPES[\"upgrade\"] = \"5\";\nPACKET_TYPES[\"noop\"] = \"6\";\nconst PACKET_TYPES_REVERSE = Object.create(null);\nObject.keys(PACKET_TYPES).forEach(key => {\n    PACKET_TYPES_REVERSE[PACKET_TYPES[key]] = key;\n});\nconst ERROR_PACKET = { type: \"error\", data: \"parser error\" };\nexport { PACKET_TYPES, PACKET_TYPES_REVERSE, ERROR_PACKET };\n", "import { PACKET_TYPES } from \"./commons.js\";\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        Object.prototype.toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\n// ArrayBuffer.isView method is not defined in IE10\nconst isView = obj => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj && obj.buffer instanceof ArrayBuffer;\n};\nconst encodePacket = ({ type, data }, supportsBinary, callback) => {\n    if (withNativeBlob && data instanceof Blob) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(data, callback);\n        }\n    }\n    else if (withNativeArrayBuffer &&\n        (data instanceof ArrayBuffer || isView(data))) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(new Blob([data]), callback);\n        }\n    }\n    // plain string\n    return callback(PACKET_TYPES[type] + (data || \"\"));\n};\nconst encodeBlobAsBase64 = (data, callback) => {\n    const fileReader = new FileReader();\n    fileReader.onload = function () {\n        const content = fileReader.result.split(\",\")[1];\n        callback(\"b\" + (content || \"\"));\n    };\n    return fileReader.readAsDataURL(data);\n};\nfunction toArray(data) {\n    if (data instanceof Uint8Array) {\n        return data;\n    }\n    else if (data instanceof ArrayBuffer) {\n        return new Uint8Array(data);\n    }\n    else {\n        return new Uint8Array(data.buffer, data.byteOffset, data.byteLength);\n    }\n}\nlet TEXT_ENCODER;\nexport function encodePacketToBinary(packet, callback) {\n    if (withNativeBlob && packet.data instanceof Blob) {\n        return packet.data\n            .arrayBuffer()\n            .then(toArray)\n            .then(callback);\n    }\n    else if (withNativeArrayBuffer &&\n        (packet.data instanceof ArrayBuffer || isView(packet.data))) {\n        return callback(toArray(packet.data));\n    }\n    encodePacket(packet, false, encoded => {\n        if (!TEXT_ENCODER) {\n            TEXT_ENCODER = new TextEncoder();\n        }\n        callback(TEXT_ENCODER.encode(encoded));\n    });\n}\nexport { encodePacket };\n", "// imported from https://github.com/socketio/base64-arraybuffer\nconst chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';\n// Use a lookup table to find the index.\nconst lookup = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);\nfor (let i = 0; i < chars.length; i++) {\n    lookup[chars.charCodeAt(i)] = i;\n}\nexport const encode = (arraybuffer) => {\n    let bytes = new Uint8Array(arraybuffer), i, len = bytes.length, base64 = '';\n    for (i = 0; i < len; i += 3) {\n        base64 += chars[bytes[i] >> 2];\n        base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];\n        base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];\n        base64 += chars[bytes[i + 2] & 63];\n    }\n    if (len % 3 === 2) {\n        base64 = base64.substring(0, base64.length - 1) + '=';\n    }\n    else if (len % 3 === 1) {\n        base64 = base64.substring(0, base64.length - 2) + '==';\n    }\n    return base64;\n};\nexport const decode = (base64) => {\n    let bufferLength = base64.length * 0.75, len = base64.length, i, p = 0, encoded1, encoded2, encoded3, encoded4;\n    if (base64[base64.length - 1] === '=') {\n        bufferLength--;\n        if (base64[base64.length - 2] === '=') {\n            bufferLength--;\n        }\n    }\n    const arraybuffer = new ArrayBuffer(bufferLength), bytes = new Uint8Array(arraybuffer);\n    for (i = 0; i < len; i += 4) {\n        encoded1 = lookup[base64.charCodeAt(i)];\n        encoded2 = lookup[base64.charCodeAt(i + 1)];\n        encoded3 = lookup[base64.charCodeAt(i + 2)];\n        encoded4 = lookup[base64.charCodeAt(i + 3)];\n        bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n        bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n        bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n    }\n    return arraybuffer;\n};\n", "import { ERROR_PACKET, PACKET_TYPES_REVERSE } from \"./commons.js\";\nimport { decode } from \"./contrib/base64-arraybuffer.js\";\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nexport const decodePacket = (encodedPacket, binaryType) => {\n    if (typeof encodedPacket !== \"string\") {\n        return {\n            type: \"message\",\n            data: mapBinary(encodedPacket, binaryType)\n        };\n    }\n    const type = encodedPacket.charAt(0);\n    if (type === \"b\") {\n        return {\n            type: \"message\",\n            data: decodeBase64Packet(encodedPacket.substring(1), binaryType)\n        };\n    }\n    const packetType = PACKET_TYPES_REVERSE[type];\n    if (!packetType) {\n        return ERROR_PACKET;\n    }\n    return encodedPacket.length > 1\n        ? {\n            type: PACKET_TYPES_REVERSE[type],\n            data: encodedPacket.substring(1)\n        }\n        : {\n            type: PACKET_TYPES_REVERSE[type]\n        };\n};\nconst decodeBase64Packet = (data, binaryType) => {\n    if (withNativeArrayBuffer) {\n        const decoded = decode(data);\n        return mapBinary(decoded, binaryType);\n    }\n    else {\n        return { base64: true, data }; // fallback for old browsers\n    }\n};\nconst mapBinary = (data, binaryType) => {\n    switch (binaryType) {\n        case \"blob\":\n            if (data instanceof Blob) {\n                // from WebSocket + binaryType \"blob\"\n                return data;\n            }\n            else {\n                // from HTTP long-polling or WebTransport\n                return new Blob([data]);\n            }\n        case \"arraybuffer\":\n        default:\n            if (data instanceof ArrayBuffer) {\n                // from HTTP long-polling (base64) or WebSocket + binaryType \"arraybuffer\"\n                return data;\n            }\n            else {\n                // from WebTransport (Uint8Array)\n                return data.buffer;\n            }\n    }\n};\n", "import { encodePacket, encodePacketToBinary } from \"./encodePacket.js\";\nimport { decodePacket } from \"./decodePacket.js\";\nimport { ERROR_PACKET } from \"./commons.js\";\nconst SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text\nconst encodePayload = (packets, callback) => {\n    // some packets may be added to the array while encoding, so the initial length must be saved\n    const length = packets.length;\n    const encodedPackets = new Array(length);\n    let count = 0;\n    packets.forEach((packet, i) => {\n        // force base64 encoding for binary packets\n        encodePacket(packet, false, encodedPacket => {\n            encodedPackets[i] = encodedPacket;\n            if (++count === length) {\n                callback(encodedPackets.join(SEPARATOR));\n            }\n        });\n    });\n};\nconst decodePayload = (encodedPayload, binaryType) => {\n    const encodedPackets = encodedPayload.split(SEPARATOR);\n    const packets = [];\n    for (let i = 0; i < encodedPackets.length; i++) {\n        const decodedPacket = decodePacket(encodedPackets[i], binaryType);\n        packets.push(decodedPacket);\n        if (decodedPacket.type === \"error\") {\n            break;\n        }\n    }\n    return packets;\n};\nexport function createPacketEncoderStream() {\n    return new TransformStream({\n        transform(packet, controller) {\n            encodePacketToBinary(packet, encodedPacket => {\n                const payloadLength = encodedPacket.length;\n                let header;\n                // inspired by the WebSocket format: https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API/Writing_WebSocket_servers#decoding_payload_length\n                if (payloadLength < 126) {\n                    header = new Uint8Array(1);\n                    new DataView(header.buffer).setUint8(0, payloadLength);\n                }\n                else if (payloadLength < 65536) {\n                    header = new Uint8Array(3);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 126);\n                    view.setUint16(1, payloadLength);\n                }\n                else {\n                    header = new Uint8Array(9);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 127);\n                    view.setBigUint64(1, BigInt(payloadLength));\n                }\n                // first bit indicates whether the payload is plain text (0) or binary (1)\n                if (packet.data && typeof packet.data !== \"string\") {\n                    header[0] |= 0x80;\n                }\n                controller.enqueue(header);\n                controller.enqueue(encodedPacket);\n            });\n        }\n    });\n}\nlet TEXT_DECODER;\nfunction totalLength(chunks) {\n    return chunks.reduce((acc, chunk) => acc + chunk.length, 0);\n}\nfunction concatChunks(chunks, size) {\n    if (chunks[0].length === size) {\n        return chunks.shift();\n    }\n    const buffer = new Uint8Array(size);\n    let j = 0;\n    for (let i = 0; i < size; i++) {\n        buffer[i] = chunks[0][j++];\n        if (j === chunks[0].length) {\n            chunks.shift();\n            j = 0;\n        }\n    }\n    if (chunks.length && j < chunks[0].length) {\n        chunks[0] = chunks[0].slice(j);\n    }\n    return buffer;\n}\nexport function createPacketDecoderStream(maxPayload, binaryType) {\n    if (!TEXT_DECODER) {\n        TEXT_DECODER = new TextDecoder();\n    }\n    const chunks = [];\n    let state = 0 /* READ_HEADER */;\n    let expectedLength = -1;\n    let isBinary = false;\n    return new TransformStream({\n        transform(chunk, controller) {\n            chunks.push(chunk);\n            while (true) {\n                if (state === 0 /* READ_HEADER */) {\n                    if (totalLength(chunks) < 1) {\n                        break;\n                    }\n                    const header = concatChunks(chunks, 1);\n                    isBinary = (header[0] & 0x80) === 0x80;\n                    expectedLength = header[0] & 0x7f;\n                    if (expectedLength < 126) {\n                        state = 3 /* READ_PAYLOAD */;\n                    }\n                    else if (expectedLength === 126) {\n                        state = 1 /* READ_EXTENDED_LENGTH_16 */;\n                    }\n                    else {\n                        state = 2 /* READ_EXTENDED_LENGTH_64 */;\n                    }\n                }\n                else if (state === 1 /* READ_EXTENDED_LENGTH_16 */) {\n                    if (totalLength(chunks) < 2) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 2);\n                    expectedLength = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length).getUint16(0);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else if (state === 2 /* READ_EXTENDED_LENGTH_64 */) {\n                    if (totalLength(chunks) < 8) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 8);\n                    const view = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length);\n                    const n = view.getUint32(0);\n                    if (n > Math.pow(2, 53 - 32) - 1) {\n                        // the maximum safe integer in JavaScript is 2^53 - 1\n                        controller.enqueue(ERROR_PACKET);\n                        break;\n                    }\n                    expectedLength = n * Math.pow(2, 32) + view.getUint32(4);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else {\n                    if (totalLength(chunks) < expectedLength) {\n                        break;\n                    }\n                    const data = concatChunks(chunks, expectedLength);\n                    controller.enqueue(decodePacket(isBinary ? data : TEXT_DECODER.decode(data), binaryType));\n                    state = 0 /* READ_HEADER */;\n                }\n                if (expectedLength === 0 || expectedLength > maxPayload) {\n                    controller.enqueue(ERROR_PACKET);\n                    break;\n                }\n            }\n        }\n    });\n}\nexport const protocol = 4;\nexport { encodePacket, encodePayload, decodePacket, decodePayload };\n", "/**\n * Initialize a new `Emitter`.\n *\n * @api public\n */\n\nexport function Emitter(obj) {\n  if (obj) return mixin(obj);\n}\n\n/**\n * Mixin the emitter properties.\n *\n * @param {Object} obj\n * @return {Object}\n * @api private\n */\n\nfunction mixin(obj) {\n  for (var key in Emitter.prototype) {\n    obj[key] = Emitter.prototype[key];\n  }\n  return obj;\n}\n\n/**\n * Listen on the given `event` with `fn`.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.on =\nEmitter.prototype.addEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])\n    .push(fn);\n  return this;\n};\n\n/**\n * Adds an `event` listener that will be invoked a single\n * time then automatically removed.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.once = function(event, fn){\n  function on() {\n    this.off(event, on);\n    fn.apply(this, arguments);\n  }\n\n  on.fn = fn;\n  this.on(event, on);\n  return this;\n};\n\n/**\n * Remove the given callback for `event` or all\n * registered callbacks.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.off =\nEmitter.prototype.removeListener =\nEmitter.prototype.removeAllListeners =\nEmitter.prototype.removeEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n\n  // all\n  if (0 == arguments.length) {\n    this._callbacks = {};\n    return this;\n  }\n\n  // specific event\n  var callbacks = this._callbacks['$' + event];\n  if (!callbacks) return this;\n\n  // remove all handlers\n  if (1 == arguments.length) {\n    delete this._callbacks['$' + event];\n    return this;\n  }\n\n  // remove specific handler\n  var cb;\n  for (var i = 0; i < callbacks.length; i++) {\n    cb = callbacks[i];\n    if (cb === fn || cb.fn === fn) {\n      callbacks.splice(i, 1);\n      break;\n    }\n  }\n\n  // Remove event specific arrays for event types that no\n  // one is subscribed for to avoid memory leak.\n  if (callbacks.length === 0) {\n    delete this._callbacks['$' + event];\n  }\n\n  return this;\n};\n\n/**\n * Emit `event` with the given args.\n *\n * @param {String} event\n * @param {Mixed} ...\n * @return {Emitter}\n */\n\nEmitter.prototype.emit = function(event){\n  this._callbacks = this._callbacks || {};\n\n  var args = new Array(arguments.length - 1)\n    , callbacks = this._callbacks['$' + event];\n\n  for (var i = 1; i < arguments.length; i++) {\n    args[i - 1] = arguments[i];\n  }\n\n  if (callbacks) {\n    callbacks = callbacks.slice(0);\n    for (var i = 0, len = callbacks.length; i < len; ++i) {\n      callbacks[i].apply(this, args);\n    }\n  }\n\n  return this;\n};\n\n// alias used for reserved events (protected method)\nEmitter.prototype.emitReserved = Emitter.prototype.emit;\n\n/**\n * Return array of callbacks for `event`.\n *\n * @param {String} event\n * @return {Array}\n * @api public\n */\n\nEmitter.prototype.listeners = function(event){\n  this._callbacks = this._callbacks || {};\n  return this._callbacks['$' + event] || [];\n};\n\n/**\n * Check if this emitter has `event` handlers.\n *\n * @param {String} event\n * @return {Boolean}\n * @api public\n */\n\nEmitter.prototype.hasListeners = function(event){\n  return !! this.listeners(event).length;\n};\n", "export const globalThisShim = (() => {\n    if (typeof self !== \"undefined\") {\n        return self;\n    }\n    else if (typeof window !== \"undefined\") {\n        return window;\n    }\n    else {\n        return Function(\"return this\")();\n    }\n})();\n", "import { globalThisShim as globalThis } from \"./globalThis.js\";\nexport function pick(obj, ...attr) {\n    return attr.reduce((acc, k) => {\n        if (obj.hasOwnProperty(k)) {\n            acc[k] = obj[k];\n        }\n        return acc;\n    }, {});\n}\n// Keep a reference to the real timeout functions so they can be used when overridden\nconst NATIVE_SET_TIMEOUT = globalThis.setTimeout;\nconst NATIVE_CLEAR_TIMEOUT = globalThis.clearTimeout;\nexport function installTimerFunctions(obj, opts) {\n    if (opts.useNativeTimers) {\n        obj.setTimeoutFn = NATIVE_SET_TIMEOUT.bind(globalThis);\n        obj.clearTimeoutFn = NATIVE_CLEAR_TIMEOUT.bind(globalThis);\n    }\n    else {\n        obj.setTimeoutFn = globalThis.setTimeout.bind(globalThis);\n        obj.clearTimeoutFn = globalThis.clearTimeout.bind(globalThis);\n    }\n}\n// base64 encoded buffers are about 33% bigger (https://en.wikipedia.org/wiki/Base64)\nconst BASE64_OVERHEAD = 1.33;\n// we could also have used `new Blob([obj]).size`, but it isn't supported in IE9\nexport function byteLength(obj) {\n    if (typeof obj === \"string\") {\n        return utf8Length(obj);\n    }\n    // arraybuffer or blob\n    return Math.ceil((obj.byteLength || obj.size) * BASE64_OVERHEAD);\n}\nfunction utf8Length(str) {\n    let c = 0, length = 0;\n    for (let i = 0, l = str.length; i < l; i++) {\n        c = str.charCodeAt(i);\n        if (c < 0x80) {\n            length += 1;\n        }\n        else if (c < 0x800) {\n            length += 2;\n        }\n        else if (c < 0xd800 || c >= 0xe000) {\n            length += 3;\n        }\n        else {\n            i++;\n            length += 4;\n        }\n    }\n    return length;\n}\n", "// imported from https://github.com/galkn/querystring\n/**\n * Compiles a querystring\n * Returns string representation of the object\n *\n * @param {Object}\n * @api private\n */\nexport function encode(obj) {\n    let str = '';\n    for (let i in obj) {\n        if (obj.hasOwnProperty(i)) {\n            if (str.length)\n                str += '&';\n            str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);\n        }\n    }\n    return str;\n}\n/**\n * Parses a simple querystring into an object\n *\n * @param {String} qs\n * @api private\n */\nexport function decode(qs) {\n    let qry = {};\n    let pairs = qs.split('&');\n    for (let i = 0, l = pairs.length; i < l; i++) {\n        let pair = pairs[i].split('=');\n        qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);\n    }\n    return qry;\n}\n", "import { decodePacket } from \"engine.io-parser\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions } from \"./util.js\";\nimport { encode } from \"./contrib/parseqs.js\";\nexport class TransportError extends Error {\n    constructor(reason, description, context) {\n        super(reason);\n        this.description = description;\n        this.context = context;\n        this.type = \"TransportError\";\n    }\n}\nexport class Transport extends Emitter {\n    /**\n     * Transport abstract constructor.\n     *\n     * @param {Object} opts - options\n     * @protected\n     */\n    constructor(opts) {\n        super();\n        this.writable = false;\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.query = opts.query;\n        this.socket = opts.socket;\n    }\n    /**\n     * Emits an error.\n     *\n     * @param {String} reason\n     * @param description\n     * @param context - the error context\n     * @return {Transport} for chaining\n     * @protected\n     */\n    onError(reason, description, context) {\n        super.emitReserved(\"error\", new TransportError(reason, description, context));\n        return this;\n    }\n    /**\n     * Opens the transport.\n     */\n    open() {\n        this.readyState = \"opening\";\n        this.doOpen();\n        return this;\n    }\n    /**\n     * Closes the transport.\n     */\n    close() {\n        if (this.readyState === \"opening\" || this.readyState === \"open\") {\n            this.doClose();\n            this.onClose();\n        }\n        return this;\n    }\n    /**\n     * Sends multiple packets.\n     *\n     * @param {Array} packets\n     */\n    send(packets) {\n        if (this.readyState === \"open\") {\n            this.write(packets);\n        }\n        else {\n            // this might happen if the transport was silently closed in the beforeunload event handler\n        }\n    }\n    /**\n     * Called upon open\n     *\n     * @protected\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        this.writable = true;\n        super.emitReserved(\"open\");\n    }\n    /**\n     * Called with data.\n     *\n     * @param {String} data\n     * @protected\n     */\n    onData(data) {\n        const packet = decodePacket(data, this.socket.binaryType);\n        this.onPacket(packet);\n    }\n    /**\n     * Called with a decoded packet.\n     *\n     * @protected\n     */\n    onPacket(packet) {\n        super.emitReserved(\"packet\", packet);\n    }\n    /**\n     * Called upon close.\n     *\n     * @protected\n     */\n    onClose(details) {\n        this.readyState = \"closed\";\n        super.emitReserved(\"close\", details);\n    }\n    /**\n     * Pauses the transport, in order not to lose packets during an upgrade.\n     *\n     * @param onPause\n     */\n    pause(onPause) { }\n    createUri(schema, query = {}) {\n        return (schema +\n            \"://\" +\n            this._hostname() +\n            this._port() +\n            this.opts.path +\n            this._query(query));\n    }\n    _hostname() {\n        const hostname = this.opts.hostname;\n        return hostname.indexOf(\":\") === -1 ? hostname : \"[\" + hostname + \"]\";\n    }\n    _port() {\n        if (this.opts.port &&\n            ((this.opts.secure && Number(this.opts.port !== 443)) ||\n                (!this.opts.secure && Number(this.opts.port) !== 80))) {\n            return \":\" + this.opts.port;\n        }\n        else {\n            return \"\";\n        }\n    }\n    _query(query) {\n        const encodedQuery = encode(query);\n        return encodedQuery.length ? \"?\" + encodedQuery : \"\";\n    }\n}\n", "// imported from https://github.com/unshiftio/yeast\n'use strict';\nconst alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split(''), length = 64, map = {};\nlet seed = 0, i = 0, prev;\n/**\n * Return a string representing the specified number.\n *\n * @param {Number} num The number to convert.\n * @returns {String} The string representation of the number.\n * @api public\n */\nexport function encode(num) {\n    let encoded = '';\n    do {\n        encoded = alphabet[num % length] + encoded;\n        num = Math.floor(num / length);\n    } while (num > 0);\n    return encoded;\n}\n/**\n * Return the integer value specified by the given string.\n *\n * @param {String} str The string to convert.\n * @returns {Number} The integer value represented by the string.\n * @api public\n */\nexport function decode(str) {\n    let decoded = 0;\n    for (i = 0; i < str.length; i++) {\n        decoded = decoded * length + map[str.charAt(i)];\n    }\n    return decoded;\n}\n/**\n * Yeast: A tiny growing id generator.\n *\n * @returns {String} A unique id.\n * @api public\n */\nexport function yeast() {\n    const now = encode(+new Date());\n    if (now !== prev)\n        return seed = 0, prev = now;\n    return now + '.' + encode(seed++);\n}\n//\n// Map each character to its index.\n//\nfor (; i < length; i++)\n    map[alphabet[i]] = i;\n", "// imported from https://github.com/component/has-cors\nlet value = false;\ntry {\n    value = typeof XMLHttpRequest !== 'undefined' &&\n        'withCredentials' in new XMLHttpRequest();\n}\ncatch (err) {\n    // if XMLHttp support is disabled in IE then it will throw\n    // when trying to create\n}\nexport const hasCORS = value;\n", "// browser shim for xmlhttprequest module\nimport { hasCORS } from \"../contrib/has-cors.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nexport function XHR(opts) {\n    const xdomain = opts.xdomain;\n    // XMLHttpRequest can be disabled on IE\n    try {\n        if (\"undefined\" !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {\n            return new XMLHttpRequest();\n        }\n    }\n    catch (e) { }\n    if (!xdomain) {\n        try {\n            return new globalThis[[\"Active\"].concat(\"Object\").join(\"X\")](\"Microsoft.XMLHTTP\");\n        }\n        catch (e) { }\n    }\n}\nexport function createCookieJar() { }\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { encodePayload, decodePayload } from \"engine.io-parser\";\nimport { createCookieJar, XHR as XMLHttpRequest, } from \"./xmlhttprequest.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions, pick } from \"../util.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nfunction empty() { }\nconst hasXHR2 = (function () {\n    const xhr = new XMLHttpRequest({\n        xdomain: false,\n    });\n    return null != xhr.responseType;\n})();\nexport class Polling extends Transport {\n    /**\n     * XHR Polling constructor.\n     *\n     * @param {Object} opts\n     * @package\n     */\n    constructor(opts) {\n        super(opts);\n        this.polling = false;\n        if (typeof location !== \"undefined\") {\n            const isSSL = \"https:\" === location.protocol;\n            let port = location.port;\n            // some user agents have empty `location.port`\n            if (!port) {\n                port = isSSL ? \"443\" : \"80\";\n            }\n            this.xd =\n                (typeof location !== \"undefined\" &&\n                    opts.hostname !== location.hostname) ||\n                    port !== opts.port;\n        }\n        /**\n         * XHR supports binary\n         */\n        const forceBase64 = opts && opts.forceBase64;\n        this.supportsBinary = hasXHR2 && !forceBase64;\n        if (this.opts.withCredentials) {\n            this.cookieJar = createCookieJar();\n        }\n    }\n    get name() {\n        return \"polling\";\n    }\n    /**\n     * Opens the socket (triggers polling). We write a PING message to determine\n     * when the transport is open.\n     *\n     * @protected\n     */\n    doOpen() {\n        this.poll();\n    }\n    /**\n     * Pauses polling.\n     *\n     * @param {Function} onPause - callback upon buffers are flushed and transport is paused\n     * @package\n     */\n    pause(onPause) {\n        this.readyState = \"pausing\";\n        const pause = () => {\n            this.readyState = \"paused\";\n            onPause();\n        };\n        if (this.polling || !this.writable) {\n            let total = 0;\n            if (this.polling) {\n                total++;\n                this.once(\"pollComplete\", function () {\n                    --total || pause();\n                });\n            }\n            if (!this.writable) {\n                total++;\n                this.once(\"drain\", function () {\n                    --total || pause();\n                });\n            }\n        }\n        else {\n            pause();\n        }\n    }\n    /**\n     * Starts polling cycle.\n     *\n     * @private\n     */\n    poll() {\n        this.polling = true;\n        this.doPoll();\n        this.emitReserved(\"poll\");\n    }\n    /**\n     * Overloads onData to detect payloads.\n     *\n     * @protected\n     */\n    onData(data) {\n        const callback = (packet) => {\n            // if its the first message we consider the transport open\n            if (\"opening\" === this.readyState && packet.type === \"open\") {\n                this.onOpen();\n            }\n            // if its a close packet, we close the ongoing requests\n            if (\"close\" === packet.type) {\n                this.onClose({ description: \"transport closed by the server\" });\n                return false;\n            }\n            // otherwise bypass onData and handle the message\n            this.onPacket(packet);\n        };\n        // decode payload\n        decodePayload(data, this.socket.binaryType).forEach(callback);\n        // if an event did not trigger closing\n        if (\"closed\" !== this.readyState) {\n            // if we got data we're not polling\n            this.polling = false;\n            this.emitReserved(\"pollComplete\");\n            if (\"open\" === this.readyState) {\n                this.poll();\n            }\n            else {\n            }\n        }\n    }\n    /**\n     * For polling, send a close packet.\n     *\n     * @protected\n     */\n    doClose() {\n        const close = () => {\n            this.write([{ type: \"close\" }]);\n        };\n        if (\"open\" === this.readyState) {\n            close();\n        }\n        else {\n            // in case we're trying to close while\n            // handshaking is in progress (GH-164)\n            this.once(\"open\", close);\n        }\n    }\n    /**\n     * Writes a packets payload.\n     *\n     * @param {Array} packets - data packets\n     * @protected\n     */\n    write(packets) {\n        this.writable = false;\n        encodePayload(packets, (data) => {\n            this.doWrite(data, () => {\n                this.writable = true;\n                this.emitReserved(\"drain\");\n            });\n        });\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"https\" : \"http\";\n        const query = this.query || {};\n        // cache busting is forced\n        if (false !== this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        if (!this.supportsBinary && !query.sid) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Creates a request.\n     *\n     * @param {String} method\n     * @private\n     */\n    request(opts = {}) {\n        Object.assign(opts, { xd: this.xd, cookieJar: this.cookieJar }, this.opts);\n        return new Request(this.uri(), opts);\n    }\n    /**\n     * Sends data.\n     *\n     * @param {String} data to send.\n     * @param {Function} called upon flush.\n     * @private\n     */\n    doWrite(data, fn) {\n        const req = this.request({\n            method: \"POST\",\n            data: data,\n        });\n        req.on(\"success\", fn);\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr post error\", xhrStatus, context);\n        });\n    }\n    /**\n     * Starts a poll cycle.\n     *\n     * @private\n     */\n    doPoll() {\n        const req = this.request();\n        req.on(\"data\", this.onData.bind(this));\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr poll error\", xhrStatus, context);\n        });\n        this.pollXhr = req;\n    }\n}\nexport class Request extends Emitter {\n    /**\n     * Request constructor\n     *\n     * @param {Object} options\n     * @package\n     */\n    constructor(uri, opts) {\n        super();\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.method = opts.method || \"GET\";\n        this.uri = uri;\n        this.data = undefined !== opts.data ? opts.data : null;\n        this.create();\n    }\n    /**\n     * Creates the XHR object and sends the request.\n     *\n     * @private\n     */\n    create() {\n        var _a;\n        const opts = pick(this.opts, \"agent\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"autoUnref\");\n        opts.xdomain = !!this.opts.xd;\n        const xhr = (this.xhr = new XMLHttpRequest(opts));\n        try {\n            xhr.open(this.method, this.uri, true);\n            try {\n                if (this.opts.extraHeaders) {\n                    xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);\n                    for (let i in this.opts.extraHeaders) {\n                        if (this.opts.extraHeaders.hasOwnProperty(i)) {\n                            xhr.setRequestHeader(i, this.opts.extraHeaders[i]);\n                        }\n                    }\n                }\n            }\n            catch (e) { }\n            if (\"POST\" === this.method) {\n                try {\n                    xhr.setRequestHeader(\"Content-type\", \"text/plain;charset=UTF-8\");\n                }\n                catch (e) { }\n            }\n            try {\n                xhr.setRequestHeader(\"Accept\", \"*/*\");\n            }\n            catch (e) { }\n            (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.addCookies(xhr);\n            // ie6 check\n            if (\"withCredentials\" in xhr) {\n                xhr.withCredentials = this.opts.withCredentials;\n            }\n            if (this.opts.requestTimeout) {\n                xhr.timeout = this.opts.requestTimeout;\n            }\n            xhr.onreadystatechange = () => {\n                var _a;\n                if (xhr.readyState === 3) {\n                    (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.parseCookies(xhr);\n                }\n                if (4 !== xhr.readyState)\n                    return;\n                if (200 === xhr.status || 1223 === xhr.status) {\n                    this.onLoad();\n                }\n                else {\n                    // make sure the `error` event handler that's user-set\n                    // does not throw in the same tick and gets caught here\n                    this.setTimeoutFn(() => {\n                        this.onError(typeof xhr.status === \"number\" ? xhr.status : 0);\n                    }, 0);\n                }\n            };\n            xhr.send(this.data);\n        }\n        catch (e) {\n            // Need to defer since .create() is called directly from the constructor\n            // and thus the 'error' event can only be only bound *after* this exception\n            // occurs.  Therefore, also, we cannot throw here at all.\n            this.setTimeoutFn(() => {\n                this.onError(e);\n            }, 0);\n            return;\n        }\n        if (typeof document !== \"undefined\") {\n            this.index = Request.requestsCount++;\n            Request.requests[this.index] = this;\n        }\n    }\n    /**\n     * Called upon error.\n     *\n     * @private\n     */\n    onError(err) {\n        this.emitReserved(\"error\", err, this.xhr);\n        this.cleanup(true);\n    }\n    /**\n     * Cleans up house.\n     *\n     * @private\n     */\n    cleanup(fromError) {\n        if (\"undefined\" === typeof this.xhr || null === this.xhr) {\n            return;\n        }\n        this.xhr.onreadystatechange = empty;\n        if (fromError) {\n            try {\n                this.xhr.abort();\n            }\n            catch (e) { }\n        }\n        if (typeof document !== \"undefined\") {\n            delete Request.requests[this.index];\n        }\n        this.xhr = null;\n    }\n    /**\n     * Called upon load.\n     *\n     * @private\n     */\n    onLoad() {\n        const data = this.xhr.responseText;\n        if (data !== null) {\n            this.emitReserved(\"data\", data);\n            this.emitReserved(\"success\");\n            this.cleanup();\n        }\n    }\n    /**\n     * Aborts the request.\n     *\n     * @package\n     */\n    abort() {\n        this.cleanup();\n    }\n}\nRequest.requestsCount = 0;\nRequest.requests = {};\n/**\n * Aborts pending requests when unloading the window. This is needed to prevent\n * memory leaks (e.g. when using IE) and to ensure that no spurious error is\n * emitted.\n */\nif (typeof document !== \"undefined\") {\n    // @ts-ignore\n    if (typeof attachEvent === \"function\") {\n        // @ts-ignore\n        attachEvent(\"onunload\", unloadHandler);\n    }\n    else if (typeof addEventListener === \"function\") {\n        const terminationEvent = \"onpagehide\" in globalThis ? \"pagehide\" : \"unload\";\n        addEventListener(terminationEvent, unloadHandler, false);\n    }\n}\nfunction unloadHandler() {\n    for (let i in Request.requests) {\n        if (Request.requests.hasOwnProperty(i)) {\n            Request.requests[i].abort();\n        }\n    }\n}\n", "import { globalThisShim as globalThis } from \"../globalThis.js\";\nexport const nextTick = (() => {\n    const isPromiseAvailable = typeof Promise === \"function\" && typeof Promise.resolve === \"function\";\n    if (isPromiseAvailable) {\n        return (cb) => Promise.resolve().then(cb);\n    }\n    else {\n        return (cb, setTimeoutFn) => setTimeoutFn(cb, 0);\n    }\n})();\nexport const WebSocket = globalThis.WebSocket || globalThis.MozWebSocket;\nexport const usingBrowserWebSocket = true;\nexport const defaultBinaryType = \"arraybuffer\";\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { pick } from \"../util.js\";\nimport { nextTick, usingBrowserWebSocket, WebSocket, } from \"./websocket-constructor.js\";\nimport { encodePacket } from \"engine.io-parser\";\n// detect ReactNative environment\nconst isReactNative = typeof navigator !== \"undefined\" &&\n    typeof navigator.product === \"string\" &&\n    navigator.product.toLowerCase() === \"reactnative\";\nexport class WS extends Transport {\n    /**\n     * WebSocket transport constructor.\n     *\n     * @param {Object} opts - connection options\n     * @protected\n     */\n    constructor(opts) {\n        super(opts);\n        this.supportsBinary = !opts.forceBase64;\n    }\n    get name() {\n        return \"websocket\";\n    }\n    doOpen() {\n        if (!this.check()) {\n            // let probe timeout\n            return;\n        }\n        const uri = this.uri();\n        const protocols = this.opts.protocols;\n        // React Native only supports the 'headers' option, and will print a warning if anything else is passed\n        const opts = isReactNative\n            ? {}\n            : pick(this.opts, \"agent\", \"perMessageDeflate\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"localAddress\", \"protocolVersion\", \"origin\", \"maxPayload\", \"family\", \"checkServerIdentity\");\n        if (this.opts.extraHeaders) {\n            opts.headers = this.opts.extraHeaders;\n        }\n        try {\n            this.ws =\n                usingBrowserWebSocket && !isReactNative\n                    ? protocols\n                        ? new WebSocket(uri, protocols)\n                        : new WebSocket(uri)\n                    : new WebSocket(uri, protocols, opts);\n        }\n        catch (err) {\n            return this.emitReserved(\"error\", err);\n        }\n        this.ws.binaryType = this.socket.binaryType;\n        this.addEventListeners();\n    }\n    /**\n     * Adds event listeners to the socket\n     *\n     * @private\n     */\n    addEventListeners() {\n        this.ws.onopen = () => {\n            if (this.opts.autoUnref) {\n                this.ws._socket.unref();\n            }\n            this.onOpen();\n        };\n        this.ws.onclose = (closeEvent) => this.onClose({\n            description: \"websocket connection closed\",\n            context: closeEvent,\n        });\n        this.ws.onmessage = (ev) => this.onData(ev.data);\n        this.ws.onerror = (e) => this.onError(\"websocket error\", e);\n    }\n    write(packets) {\n        this.writable = false;\n        // encodePacket efficient as it uses WS framing\n        // no need for encodePayload\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            encodePacket(packet, this.supportsBinary, (data) => {\n                // always create a new object (GH-437)\n                const opts = {};\n                if (!usingBrowserWebSocket) {\n                    if (packet.options) {\n                        opts.compress = packet.options.compress;\n                    }\n                    if (this.opts.perMessageDeflate) {\n                        const len = \n                        // @ts-ignore\n                        \"string\" === typeof data ? Buffer.byteLength(data) : data.length;\n                        if (len < this.opts.perMessageDeflate.threshold) {\n                            opts.compress = false;\n                        }\n                    }\n                }\n                // Sometimes the websocket has already been closed but the browser didn't\n                // have a chance of informing us about it yet, in that case send will\n                // throw an error\n                try {\n                    if (usingBrowserWebSocket) {\n                        // TypeError is thrown when passing the second argument on Safari\n                        this.ws.send(data);\n                    }\n                    else {\n                        this.ws.send(data, opts);\n                    }\n                }\n                catch (e) {\n                }\n                if (lastPacket) {\n                    // fake drain\n                    // defer to next tick to allow Socket to clear writeBuffer\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        if (typeof this.ws !== \"undefined\") {\n            this.ws.close();\n            this.ws = null;\n        }\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"wss\" : \"ws\";\n        const query = this.query || {};\n        // append timestamp to URI\n        if (this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        // communicate binary support capabilities\n        if (!this.supportsBinary) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Feature detection for WebSocket.\n     *\n     * @return {Boolean} whether this transport is available.\n     * @private\n     */\n    check() {\n        return !!WebSocket;\n    }\n}\n", "import { Transport } from \"../transport.js\";\nimport { nextTick } from \"./websocket-constructor.js\";\nimport { createPacketDecoderStream, createPacketEncoderStream, } from \"engine.io-parser\";\nexport class WT extends Transport {\n    get name() {\n        return \"webtransport\";\n    }\n    doOpen() {\n        // @ts-ignore\n        if (typeof WebTransport !== \"function\") {\n            return;\n        }\n        // @ts-ignore\n        this.transport = new WebTransport(this.createUri(\"https\"), this.opts.transportOptions[this.name]);\n        this.transport.closed\n            .then(() => {\n            this.onClose();\n        })\n            .catch((err) => {\n            this.onError(\"webtransport error\", err);\n        });\n        // note: we could have used async/await, but that would require some additional polyfills\n        this.transport.ready.then(() => {\n            this.transport.createBidirectionalStream().then((stream) => {\n                const decoderStream = createPacketDecoderStream(Number.MAX_SAFE_INTEGER, this.socket.binaryType);\n                const reader = stream.readable.pipeThrough(decoderStream).getReader();\n                const encoderStream = createPacketEncoderStream();\n                encoderStream.readable.pipeTo(stream.writable);\n                this.writer = encoderStream.writable.getWriter();\n                const read = () => {\n                    reader\n                        .read()\n                        .then(({ done, value }) => {\n                        if (done) {\n                            return;\n                        }\n                        this.onPacket(value);\n                        read();\n                    })\n                        .catch((err) => {\n                    });\n                };\n                read();\n                const packet = { type: \"open\" };\n                if (this.query.sid) {\n                    packet.data = `{\"sid\":\"${this.query.sid}\"}`;\n                }\n                this.writer.write(packet).then(() => this.onOpen());\n            });\n        });\n    }\n    write(packets) {\n        this.writable = false;\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            this.writer.write(packet).then(() => {\n                if (lastPacket) {\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        var _a;\n        (_a = this.transport) === null || _a === void 0 ? void 0 : _a.close();\n    }\n}\n", "import { Polling } from \"./polling.js\";\nimport { WS } from \"./websocket.js\";\nimport { WT } from \"./webtransport.js\";\nexport const transports = {\n    websocket: WS,\n    webtransport: WT,\n    polling: Polling,\n};\n", "// imported from https://github.com/galkn/parseuri\n/**\n * Parses a URI\n *\n * Note: we could also have used the built-in URL object, but it isn't supported on all platforms.\n *\n * See:\n * - https://developer.mozilla.org/en-US/docs/Web/API/URL\n * - https://caniuse.com/url\n * - https://www.rfc-editor.org/rfc/rfc3986#appendix-B\n *\n * History of the parse() method:\n * - first commit: https://github.com/socketio/socket.io-client/commit/4ee1d5d94b3906a9c052b459f1a818b15f38f91c\n * - export into its own module: https://github.com/socketio/engine.io-client/commit/de2c561e4564efeb78f1bdb1ba39ef81b2822cb3\n * - reimport: https://github.com/socketio/engine.io-client/commit/df32277c3f6d622eec5ed09f493cae3f3391d242\n *\n * @author Steven Levithan <stevenlevithan.com> (MIT license)\n * @api private\n */\nconst re = /^(?:(?![^:@\\/?#]+:[^:@\\/]*@)(http|https|ws|wss):\\/\\/)?((?:(([^:@\\/?#]*)(?::([^:@\\/?#]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\\/?#]*)(?::(\\d*))?)(((\\/(?:[^?#](?![^?#\\/]*\\.[^?#\\/.]+(?:[?#]|$)))*\\/?)?([^?#\\/]*))(?:\\?([^#]*))?(?:#(.*))?)/;\nconst parts = [\n    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'\n];\nexport function parse(str) {\n    if (str.length > 2000) {\n        throw \"URI too long\";\n    }\n    const src = str, b = str.indexOf('['), e = str.indexOf(']');\n    if (b != -1 && e != -1) {\n        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);\n    }\n    let m = re.exec(str || ''), uri = {}, i = 14;\n    while (i--) {\n        uri[parts[i]] = m[i] || '';\n    }\n    if (b != -1 && e != -1) {\n        uri.source = src;\n        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');\n        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');\n        uri.ipv6uri = true;\n    }\n    uri.pathNames = pathNames(uri, uri['path']);\n    uri.queryKey = queryKey(uri, uri['query']);\n    return uri;\n}\nfunction pathNames(obj, path) {\n    const regx = /\\/{2,9}/g, names = path.replace(regx, \"/\").split(\"/\");\n    if (path.slice(0, 1) == '/' || path.length === 0) {\n        names.splice(0, 1);\n    }\n    if (path.slice(-1) == '/') {\n        names.splice(names.length - 1, 1);\n    }\n    return names;\n}\nfunction queryKey(uri, query) {\n    const data = {};\n    query.replace(/(?:^|&)([^&=]*)=?([^&]*)/g, function ($0, $1, $2) {\n        if ($1) {\n            data[$1] = $2;\n        }\n    });\n    return data;\n}\n", "import { transports } from \"./transports/index.js\";\nimport { installTimerFunctions, byteLength } from \"./util.js\";\nimport { decode } from \"./contrib/parseqs.js\";\nimport { parse } from \"./contrib/parseuri.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { protocol } from \"engine.io-parser\";\nimport { defaultBinaryType } from \"./transports/websocket-constructor.js\";\nexport class Socket extends Emitter {\n    /**\n     * Socket constructor.\n     *\n     * @param {String|Object} uri - uri or options\n     * @param {Object} opts - options\n     */\n    constructor(uri, opts = {}) {\n        super();\n        this.binaryType = defaultBinaryType;\n        this.writeBuffer = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = null;\n        }\n        if (uri) {\n            uri = parse(uri);\n            opts.hostname = uri.host;\n            opts.secure = uri.protocol === \"https\" || uri.protocol === \"wss\";\n            opts.port = uri.port;\n            if (uri.query)\n                opts.query = uri.query;\n        }\n        else if (opts.host) {\n            opts.hostname = parse(opts.host).host;\n        }\n        installTimerFunctions(this, opts);\n        this.secure =\n            null != opts.secure\n                ? opts.secure\n                : typeof location !== \"undefined\" && \"https:\" === location.protocol;\n        if (opts.hostname && !opts.port) {\n            // if no port is specified manually, use the protocol default\n            opts.port = this.secure ? \"443\" : \"80\";\n        }\n        this.hostname =\n            opts.hostname ||\n                (typeof location !== \"undefined\" ? location.hostname : \"localhost\");\n        this.port =\n            opts.port ||\n                (typeof location !== \"undefined\" && location.port\n                    ? location.port\n                    : this.secure\n                        ? \"443\"\n                        : \"80\");\n        this.transports = opts.transports || [\n            \"polling\",\n            \"websocket\",\n            \"webtransport\",\n        ];\n        this.writeBuffer = [];\n        this.prevBufferLen = 0;\n        this.opts = Object.assign({\n            path: \"/engine.io\",\n            agent: false,\n            withCredentials: false,\n            upgrade: true,\n            timestampParam: \"t\",\n            rememberUpgrade: false,\n            addTrailingSlash: true,\n            rejectUnauthorized: true,\n            perMessageDeflate: {\n                threshold: 1024,\n            },\n            transportOptions: {},\n            closeOnBeforeunload: false,\n        }, opts);\n        this.opts.path =\n            this.opts.path.replace(/\\/$/, \"\") +\n                (this.opts.addTrailingSlash ? \"/\" : \"\");\n        if (typeof this.opts.query === \"string\") {\n            this.opts.query = decode(this.opts.query);\n        }\n        // set on handshake\n        this.id = null;\n        this.upgrades = null;\n        this.pingInterval = null;\n        this.pingTimeout = null;\n        // set on heartbeat\n        this.pingTimeoutTimer = null;\n        if (typeof addEventListener === \"function\") {\n            if (this.opts.closeOnBeforeunload) {\n                // Firefox closes the connection when the \"beforeunload\" event is emitted but not Chrome. This event listener\n                // ensures every browser behaves the same (no \"disconnect\" event at the Socket.IO level when the page is\n                // closed/reloaded)\n                this.beforeunloadEventListener = () => {\n                    if (this.transport) {\n                        // silently close the transport\n                        this.transport.removeAllListeners();\n                        this.transport.close();\n                    }\n                };\n                addEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n            }\n            if (this.hostname !== \"localhost\") {\n                this.offlineEventListener = () => {\n                    this.onClose(\"transport close\", {\n                        description: \"network connection lost\",\n                    });\n                };\n                addEventListener(\"offline\", this.offlineEventListener, false);\n            }\n        }\n        this.open();\n    }\n    /**\n     * Creates transport of the given type.\n     *\n     * @param {String} name - transport name\n     * @return {Transport}\n     * @private\n     */\n    createTransport(name) {\n        const query = Object.assign({}, this.opts.query);\n        // append engine.io protocol identifier\n        query.EIO = protocol;\n        // transport name\n        query.transport = name;\n        // session id if we already have one\n        if (this.id)\n            query.sid = this.id;\n        const opts = Object.assign({}, this.opts, {\n            query,\n            socket: this,\n            hostname: this.hostname,\n            secure: this.secure,\n            port: this.port,\n        }, this.opts.transportOptions[name]);\n        return new transports[name](opts);\n    }\n    /**\n     * Initializes transport to use and starts probe.\n     *\n     * @private\n     */\n    open() {\n        let transport;\n        if (this.opts.rememberUpgrade &&\n            Socket.priorWebsocketSuccess &&\n            this.transports.indexOf(\"websocket\") !== -1) {\n            transport = \"websocket\";\n        }\n        else if (0 === this.transports.length) {\n            // Emit error on next tick so it can be listened to\n            this.setTimeoutFn(() => {\n                this.emitReserved(\"error\", \"No transports available\");\n            }, 0);\n            return;\n        }\n        else {\n            transport = this.transports[0];\n        }\n        this.readyState = \"opening\";\n        // Retry with the next transport if the transport is disabled (jsonp: false)\n        try {\n            transport = this.createTransport(transport);\n        }\n        catch (e) {\n            this.transports.shift();\n            this.open();\n            return;\n        }\n        transport.open();\n        this.setTransport(transport);\n    }\n    /**\n     * Sets the current transport. Disables the existing one (if any).\n     *\n     * @private\n     */\n    setTransport(transport) {\n        if (this.transport) {\n            this.transport.removeAllListeners();\n        }\n        // set up transport\n        this.transport = transport;\n        // set up transport listeners\n        transport\n            .on(\"drain\", this.onDrain.bind(this))\n            .on(\"packet\", this.onPacket.bind(this))\n            .on(\"error\", this.onError.bind(this))\n            .on(\"close\", (reason) => this.onClose(\"transport close\", reason));\n    }\n    /**\n     * Probes a transport.\n     *\n     * @param {String} name - transport name\n     * @private\n     */\n    probe(name) {\n        let transport = this.createTransport(name);\n        let failed = false;\n        Socket.priorWebsocketSuccess = false;\n        const onTransportOpen = () => {\n            if (failed)\n                return;\n            transport.send([{ type: \"ping\", data: \"probe\" }]);\n            transport.once(\"packet\", (msg) => {\n                if (failed)\n                    return;\n                if (\"pong\" === msg.type && \"probe\" === msg.data) {\n                    this.upgrading = true;\n                    this.emitReserved(\"upgrading\", transport);\n                    if (!transport)\n                        return;\n                    Socket.priorWebsocketSuccess = \"websocket\" === transport.name;\n                    this.transport.pause(() => {\n                        if (failed)\n                            return;\n                        if (\"closed\" === this.readyState)\n                            return;\n                        cleanup();\n                        this.setTransport(transport);\n                        transport.send([{ type: \"upgrade\" }]);\n                        this.emitReserved(\"upgrade\", transport);\n                        transport = null;\n                        this.upgrading = false;\n                        this.flush();\n                    });\n                }\n                else {\n                    const err = new Error(\"probe error\");\n                    // @ts-ignore\n                    err.transport = transport.name;\n                    this.emitReserved(\"upgradeError\", err);\n                }\n            });\n        };\n        function freezeTransport() {\n            if (failed)\n                return;\n            // Any callback called by transport should be ignored since now\n            failed = true;\n            cleanup();\n            transport.close();\n            transport = null;\n        }\n        // Handle any error that happens while probing\n        const onerror = (err) => {\n            const error = new Error(\"probe error: \" + err);\n            // @ts-ignore\n            error.transport = transport.name;\n            freezeTransport();\n            this.emitReserved(\"upgradeError\", error);\n        };\n        function onTransportClose() {\n            onerror(\"transport closed\");\n        }\n        // When the socket is closed while we're probing\n        function onclose() {\n            onerror(\"socket closed\");\n        }\n        // When the socket is upgraded while we're probing\n        function onupgrade(to) {\n            if (transport && to.name !== transport.name) {\n                freezeTransport();\n            }\n        }\n        // Remove all listeners on the transport and on self\n        const cleanup = () => {\n            transport.removeListener(\"open\", onTransportOpen);\n            transport.removeListener(\"error\", onerror);\n            transport.removeListener(\"close\", onTransportClose);\n            this.off(\"close\", onclose);\n            this.off(\"upgrading\", onupgrade);\n        };\n        transport.once(\"open\", onTransportOpen);\n        transport.once(\"error\", onerror);\n        transport.once(\"close\", onTransportClose);\n        this.once(\"close\", onclose);\n        this.once(\"upgrading\", onupgrade);\n        if (this.upgrades.indexOf(\"webtransport\") !== -1 &&\n            name !== \"webtransport\") {\n            // favor WebTransport\n            this.setTimeoutFn(() => {\n                if (!failed) {\n                    transport.open();\n                }\n            }, 200);\n        }\n        else {\n            transport.open();\n        }\n    }\n    /**\n     * Called when connection is deemed open.\n     *\n     * @private\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        Socket.priorWebsocketSuccess = \"websocket\" === this.transport.name;\n        this.emitReserved(\"open\");\n        this.flush();\n        // we check for `readyState` in case an `open`\n        // listener already closed the socket\n        if (\"open\" === this.readyState && this.opts.upgrade) {\n            let i = 0;\n            const l = this.upgrades.length;\n            for (; i < l; i++) {\n                this.probe(this.upgrades[i]);\n            }\n        }\n    }\n    /**\n     * Handles a packet.\n     *\n     * @private\n     */\n    onPacket(packet) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            this.emitReserved(\"packet\", packet);\n            // Socket is live - any packet counts\n            this.emitReserved(\"heartbeat\");\n            this.resetPingTimeout();\n            switch (packet.type) {\n                case \"open\":\n                    this.onHandshake(JSON.parse(packet.data));\n                    break;\n                case \"ping\":\n                    this.sendPacket(\"pong\");\n                    this.emitReserved(\"ping\");\n                    this.emitReserved(\"pong\");\n                    break;\n                case \"error\":\n                    const err = new Error(\"server error\");\n                    // @ts-ignore\n                    err.code = packet.data;\n                    this.onError(err);\n                    break;\n                case \"message\":\n                    this.emitReserved(\"data\", packet.data);\n                    this.emitReserved(\"message\", packet.data);\n                    break;\n            }\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon handshake completion.\n     *\n     * @param {Object} data - handshake obj\n     * @private\n     */\n    onHandshake(data) {\n        this.emitReserved(\"handshake\", data);\n        this.id = data.sid;\n        this.transport.query.sid = data.sid;\n        this.upgrades = this.filterUpgrades(data.upgrades);\n        this.pingInterval = data.pingInterval;\n        this.pingTimeout = data.pingTimeout;\n        this.maxPayload = data.maxPayload;\n        this.onOpen();\n        // In case open handler closes socket\n        if (\"closed\" === this.readyState)\n            return;\n        this.resetPingTimeout();\n    }\n    /**\n     * Sets and resets ping timeout timer based on server pings.\n     *\n     * @private\n     */\n    resetPingTimeout() {\n        this.clearTimeoutFn(this.pingTimeoutTimer);\n        this.pingTimeoutTimer = this.setTimeoutFn(() => {\n            this.onClose(\"ping timeout\");\n        }, this.pingInterval + this.pingTimeout);\n        if (this.opts.autoUnref) {\n            this.pingTimeoutTimer.unref();\n        }\n    }\n    /**\n     * Called on `drain` event\n     *\n     * @private\n     */\n    onDrain() {\n        this.writeBuffer.splice(0, this.prevBufferLen);\n        // setting prevBufferLen = 0 is very important\n        // for example, when upgrading, upgrade packet is sent over,\n        // and a nonzero prevBufferLen could cause problems on `drain`\n        this.prevBufferLen = 0;\n        if (0 === this.writeBuffer.length) {\n            this.emitReserved(\"drain\");\n        }\n        else {\n            this.flush();\n        }\n    }\n    /**\n     * Flush write buffers.\n     *\n     * @private\n     */\n    flush() {\n        if (\"closed\" !== this.readyState &&\n            this.transport.writable &&\n            !this.upgrading &&\n            this.writeBuffer.length) {\n            const packets = this.getWritablePackets();\n            this.transport.send(packets);\n            // keep track of current length of writeBuffer\n            // splice writeBuffer and callbackBuffer on `drain`\n            this.prevBufferLen = packets.length;\n            this.emitReserved(\"flush\");\n        }\n    }\n    /**\n     * Ensure the encoded size of the writeBuffer is below the maxPayload value sent by the server (only for HTTP\n     * long-polling)\n     *\n     * @private\n     */\n    getWritablePackets() {\n        const shouldCheckPayloadSize = this.maxPayload &&\n            this.transport.name === \"polling\" &&\n            this.writeBuffer.length > 1;\n        if (!shouldCheckPayloadSize) {\n            return this.writeBuffer;\n        }\n        let payloadSize = 1; // first packet type\n        for (let i = 0; i < this.writeBuffer.length; i++) {\n            const data = this.writeBuffer[i].data;\n            if (data) {\n                payloadSize += byteLength(data);\n            }\n            if (i > 0 && payloadSize > this.maxPayload) {\n                return this.writeBuffer.slice(0, i);\n            }\n            payloadSize += 2; // separator + packet type\n        }\n        return this.writeBuffer;\n    }\n    /**\n     * Sends a message.\n     *\n     * @param {String} msg - message.\n     * @param {Object} options.\n     * @param {Function} callback function.\n     * @return {Socket} for chaining.\n     */\n    write(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    send(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param {String} type: packet type.\n     * @param {String} data.\n     * @param {Object} options.\n     * @param {Function} fn - callback function.\n     * @private\n     */\n    sendPacket(type, data, options, fn) {\n        if (\"function\" === typeof data) {\n            fn = data;\n            data = undefined;\n        }\n        if (\"function\" === typeof options) {\n            fn = options;\n            options = null;\n        }\n        if (\"closing\" === this.readyState || \"closed\" === this.readyState) {\n            return;\n        }\n        options = options || {};\n        options.compress = false !== options.compress;\n        const packet = {\n            type: type,\n            data: data,\n            options: options,\n        };\n        this.emitReserved(\"packetCreate\", packet);\n        this.writeBuffer.push(packet);\n        if (fn)\n            this.once(\"flush\", fn);\n        this.flush();\n    }\n    /**\n     * Closes the connection.\n     */\n    close() {\n        const close = () => {\n            this.onClose(\"forced close\");\n            this.transport.close();\n        };\n        const cleanupAndClose = () => {\n            this.off(\"upgrade\", cleanupAndClose);\n            this.off(\"upgradeError\", cleanupAndClose);\n            close();\n        };\n        const waitForUpgrade = () => {\n            // wait for upgrade to finish since we can't send packets while pausing a transport\n            this.once(\"upgrade\", cleanupAndClose);\n            this.once(\"upgradeError\", cleanupAndClose);\n        };\n        if (\"opening\" === this.readyState || \"open\" === this.readyState) {\n            this.readyState = \"closing\";\n            if (this.writeBuffer.length) {\n                this.once(\"drain\", () => {\n                    if (this.upgrading) {\n                        waitForUpgrade();\n                    }\n                    else {\n                        close();\n                    }\n                });\n            }\n            else if (this.upgrading) {\n                waitForUpgrade();\n            }\n            else {\n                close();\n            }\n        }\n        return this;\n    }\n    /**\n     * Called upon transport error\n     *\n     * @private\n     */\n    onError(err) {\n        Socket.priorWebsocketSuccess = false;\n        this.emitReserved(\"error\", err);\n        this.onClose(\"transport error\", err);\n    }\n    /**\n     * Called upon transport close.\n     *\n     * @private\n     */\n    onClose(reason, description) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            // clear timers\n            this.clearTimeoutFn(this.pingTimeoutTimer);\n            // stop event from firing again for transport\n            this.transport.removeAllListeners(\"close\");\n            // ensure transport won't stay open\n            this.transport.close();\n            // ignore further transport communication\n            this.transport.removeAllListeners();\n            if (typeof removeEventListener === \"function\") {\n                removeEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n                removeEventListener(\"offline\", this.offlineEventListener, false);\n            }\n            // set ready state\n            this.readyState = \"closed\";\n            // clear session id\n            this.id = null;\n            // emit close event\n            this.emitReserved(\"close\", reason, description);\n            // clean buffers after, so users can still\n            // grab the buffers on `close` event\n            this.writeBuffer = [];\n            this.prevBufferLen = 0;\n        }\n    }\n    /**\n     * Filters upgrades, returning only those matching client transports.\n     *\n     * @param {Array} upgrades - server upgrades\n     * @private\n     */\n    filterUpgrades(upgrades) {\n        const filteredUpgrades = [];\n        let i = 0;\n        const j = upgrades.length;\n        for (; i < j; i++) {\n            if (~this.transports.indexOf(upgrades[i]))\n                filteredUpgrades.push(upgrades[i]);\n        }\n        return filteredUpgrades;\n    }\n}\nSocket.protocol = protocol;\n", "import { Socket } from \"./socket.js\";\nexport { Socket };\nexport const protocol = Socket.protocol;\nexport { Transport, TransportError } from \"./transport.js\";\nexport { transports } from \"./transports/index.js\";\nexport { installTimerFunctions } from \"./util.js\";\nexport { parse } from \"./contrib/parseuri.js\";\nexport { nextTick } from \"./transports/websocket-constructor.js\";\n", "import { parse } from \"engine.io-client\";\n/**\n * URL parser.\n *\n * @param uri - url\n * @param path - the request path of the connection\n * @param loc - An object meant to mimic window.location.\n *        Defaults to window.location.\n * @public\n */\nexport function url(uri, path = \"\", loc) {\n    let obj = uri;\n    // default to window.location\n    loc = loc || (typeof location !== \"undefined\" && location);\n    if (null == uri)\n        uri = loc.protocol + \"//\" + loc.host;\n    // relative path support\n    if (typeof uri === \"string\") {\n        if (\"/\" === uri.charAt(0)) {\n            if (\"/\" === uri.charAt(1)) {\n                uri = loc.protocol + uri;\n            }\n            else {\n                uri = loc.host + uri;\n            }\n        }\n        if (!/^(https?|wss?):\\/\\//.test(uri)) {\n            if (\"undefined\" !== typeof loc) {\n                uri = loc.protocol + \"//\" + uri;\n            }\n            else {\n                uri = \"https://\" + uri;\n            }\n        }\n        // parse\n        obj = parse(uri);\n    }\n    // make sure we treat `localhost:80` and `localhost` equally\n    if (!obj.port) {\n        if (/^(http|ws)$/.test(obj.protocol)) {\n            obj.port = \"80\";\n        }\n        else if (/^(http|ws)s$/.test(obj.protocol)) {\n            obj.port = \"443\";\n        }\n    }\n    obj.path = obj.path || \"/\";\n    const ipv6 = obj.host.indexOf(\":\") !== -1;\n    const host = ipv6 ? \"[\" + obj.host + \"]\" : obj.host;\n    // define unique id\n    obj.id = obj.protocol + \"://\" + host + \":\" + obj.port + path;\n    // define href\n    obj.href =\n        obj.protocol +\n            \"://\" +\n            host +\n            (loc && loc.port === obj.port ? \"\" : \":\" + obj.port);\n    return obj;\n}\n", "import { Emitter } from \"@socket.io/component-emitter\";\nimport { deconstructPacket, reconstructPacket } from \"./binary.js\";\nimport { isBinary, hasBinary } from \"./is-binary.js\";\n/**\n * These strings must not be used as event names, as they have a special meaning.\n */\nconst RESERVED_EVENTS = [\n    \"connect\",\n    \"connect_error\",\n    \"disconnect\",\n    \"disconnecting\",\n    \"newListener\",\n    \"removeListener\", // used by the Node.js EventEmitter\n];\n/**\n * Protocol version.\n *\n * @public\n */\nexport const protocol = 5;\nexport var PacketType;\n(function (PacketType) {\n    PacketType[PacketType[\"CONNECT\"] = 0] = \"CONNECT\";\n    PacketType[PacketType[\"DISCONNECT\"] = 1] = \"DISCONNECT\";\n    PacketType[PacketType[\"EVENT\"] = 2] = \"EVENT\";\n    PacketType[PacketType[\"ACK\"] = 3] = \"ACK\";\n    PacketType[PacketType[\"CONNECT_ERROR\"] = 4] = \"CONNECT_ERROR\";\n    PacketType[PacketType[\"BINARY_EVENT\"] = 5] = \"BINARY_EVENT\";\n    PacketType[PacketType[\"BINARY_ACK\"] = 6] = \"BINARY_ACK\";\n})(PacketType || (PacketType = {}));\n/**\n * A socket.io Encoder instance\n */\nexport class Encoder {\n    /**\n     * Encoder constructor\n     *\n     * @param {function} replacer - custom replacer to pass down to JSON.parse\n     */\n    constructor(replacer) {\n        this.replacer = replacer;\n    }\n    /**\n     * Encode a packet as a single string if non-binary, or as a\n     * buffer sequence, depending on packet type.\n     *\n     * @param {Object} obj - packet object\n     */\n    encode(obj) {\n        if (obj.type === PacketType.EVENT || obj.type === PacketType.ACK) {\n            if (hasBinary(obj)) {\n                return this.encodeAsBinary({\n                    type: obj.type === PacketType.EVENT\n                        ? PacketType.BINARY_EVENT\n                        : PacketType.BINARY_ACK,\n                    nsp: obj.nsp,\n                    data: obj.data,\n                    id: obj.id,\n                });\n            }\n        }\n        return [this.encodeAsString(obj)];\n    }\n    /**\n     * Encode packet as string.\n     */\n    encodeAsString(obj) {\n        // first is type\n        let str = \"\" + obj.type;\n        // attachments if we have them\n        if (obj.type === PacketType.BINARY_EVENT ||\n            obj.type === PacketType.BINARY_ACK) {\n            str += obj.attachments + \"-\";\n        }\n        // if we have a namespace other than `/`\n        // we append it followed by a comma `,`\n        if (obj.nsp && \"/\" !== obj.nsp) {\n            str += obj.nsp + \",\";\n        }\n        // immediately followed by the id\n        if (null != obj.id) {\n            str += obj.id;\n        }\n        // json data\n        if (null != obj.data) {\n            str += JSON.stringify(obj.data, this.replacer);\n        }\n        return str;\n    }\n    /**\n     * Encode packet as 'buffer sequence' by removing blobs, and\n     * deconstructing packet into object with placeholders and\n     * a list of buffers.\n     */\n    encodeAsBinary(obj) {\n        const deconstruction = deconstructPacket(obj);\n        const pack = this.encodeAsString(deconstruction.packet);\n        const buffers = deconstruction.buffers;\n        buffers.unshift(pack); // add packet info to beginning of data list\n        return buffers; // write all the buffers\n    }\n}\n// see https://stackoverflow.com/questions/8511281/check-if-a-value-is-an-object-in-javascript\nfunction isObject(value) {\n    return Object.prototype.toString.call(value) === \"[object Object]\";\n}\n/**\n * A socket.io Decoder instance\n *\n * @return {Object} decoder\n */\nexport class Decoder extends Emitter {\n    /**\n     * Decoder constructor\n     *\n     * @param {function} reviver - custom reviver to pass down to JSON.stringify\n     */\n    constructor(reviver) {\n        super();\n        this.reviver = reviver;\n    }\n    /**\n     * Decodes an encoded packet string into packet JSON.\n     *\n     * @param {String} obj - encoded packet\n     */\n    add(obj) {\n        let packet;\n        if (typeof obj === \"string\") {\n            if (this.reconstructor) {\n                throw new Error(\"got plaintext data when reconstructing a packet\");\n            }\n            packet = this.decodeString(obj);\n            const isBinaryEvent = packet.type === PacketType.BINARY_EVENT;\n            if (isBinaryEvent || packet.type === PacketType.BINARY_ACK) {\n                packet.type = isBinaryEvent ? PacketType.EVENT : PacketType.ACK;\n                // binary packet's json\n                this.reconstructor = new BinaryReconstructor(packet);\n                // no attachments, labeled binary but no binary data to follow\n                if (packet.attachments === 0) {\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n            else {\n                // non-binary full packet\n                super.emitReserved(\"decoded\", packet);\n            }\n        }\n        else if (isBinary(obj) || obj.base64) {\n            // raw binary data\n            if (!this.reconstructor) {\n                throw new Error(\"got binary data when not reconstructing a packet\");\n            }\n            else {\n                packet = this.reconstructor.takeBinaryData(obj);\n                if (packet) {\n                    // received final buffer\n                    this.reconstructor = null;\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n        }\n        else {\n            throw new Error(\"Unknown type: \" + obj);\n        }\n    }\n    /**\n     * Decode a packet String (JSON data)\n     *\n     * @param {String} str\n     * @return {Object} packet\n     */\n    decodeString(str) {\n        let i = 0;\n        // look up type\n        const p = {\n            type: Number(str.charAt(0)),\n        };\n        if (PacketType[p.type] === undefined) {\n            throw new Error(\"unknown packet type \" + p.type);\n        }\n        // look up attachments if type binary\n        if (p.type === PacketType.BINARY_EVENT ||\n            p.type === PacketType.BINARY_ACK) {\n            const start = i + 1;\n            while (str.charAt(++i) !== \"-\" && i != str.length) { }\n            const buf = str.substring(start, i);\n            if (buf != Number(buf) || str.charAt(i) !== \"-\") {\n                throw new Error(\"Illegal attachments\");\n            }\n            p.attachments = Number(buf);\n        }\n        // look up namespace (if any)\n        if (\"/\" === str.charAt(i + 1)) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (\",\" === c)\n                    break;\n                if (i === str.length)\n                    break;\n            }\n            p.nsp = str.substring(start, i);\n        }\n        else {\n            p.nsp = \"/\";\n        }\n        // look up id\n        const next = str.charAt(i + 1);\n        if (\"\" !== next && Number(next) == next) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (null == c || Number(c) != c) {\n                    --i;\n                    break;\n                }\n                if (i === str.length)\n                    break;\n            }\n            p.id = Number(str.substring(start, i + 1));\n        }\n        // look up json data\n        if (str.charAt(++i)) {\n            const payload = this.tryParse(str.substr(i));\n            if (Decoder.isPayloadValid(p.type, payload)) {\n                p.data = payload;\n            }\n            else {\n                throw new Error(\"invalid payload\");\n            }\n        }\n        return p;\n    }\n    tryParse(str) {\n        try {\n            return JSON.parse(str, this.reviver);\n        }\n        catch (e) {\n            return false;\n        }\n    }\n    static isPayloadValid(type, payload) {\n        switch (type) {\n            case PacketType.CONNECT:\n                return isObject(payload);\n            case PacketType.DISCONNECT:\n                return payload === undefined;\n            case PacketType.CONNECT_ERROR:\n                return typeof payload === \"string\" || isObject(payload);\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                return (Array.isArray(payload) &&\n                    (typeof payload[0] === \"number\" ||\n                        (typeof payload[0] === \"string\" &&\n                            RESERVED_EVENTS.indexOf(payload[0]) === -1)));\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                return Array.isArray(payload);\n        }\n    }\n    /**\n     * Deallocates a parser's resources\n     */\n    destroy() {\n        if (this.reconstructor) {\n            this.reconstructor.finishedReconstruction();\n            this.reconstructor = null;\n        }\n    }\n}\n/**\n * A manager of a binary event's 'buffer sequence'. Should\n * be constructed whenever a packet of type BINARY_EVENT is\n * decoded.\n *\n * @param {Object} packet\n * @return {BinaryReconstructor} initialized reconstructor\n */\nclass BinaryReconstructor {\n    constructor(packet) {\n        this.packet = packet;\n        this.buffers = [];\n        this.reconPack = packet;\n    }\n    /**\n     * Method to be called when binary data received from connection\n     * after a BINARY_EVENT packet.\n     *\n     * @param {Buffer | ArrayBuffer} binData - the raw binary data received\n     * @return {null | Object} returns null if more binary data is expected or\n     *   a reconstructed packet object if all buffers have been received.\n     */\n    takeBinaryData(binData) {\n        this.buffers.push(binData);\n        if (this.buffers.length === this.reconPack.attachments) {\n            // done with buffer list\n            const packet = reconstructPacket(this.reconPack, this.buffers);\n            this.finishedReconstruction();\n            return packet;\n        }\n        return null;\n    }\n    /**\n     * Cleans up binary packet reconstruction variables.\n     */\n    finishedReconstruction() {\n        this.reconPack = null;\n        this.buffers = [];\n    }\n}\n", "const withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nconst isView = (obj) => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj.buffer instanceof ArrayBuffer;\n};\nconst toString = Object.prototype.toString;\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeFile = typeof File === \"function\" ||\n    (typeof File !== \"undefined\" &&\n        toString.call(File) === \"[object FileConstructor]\");\n/**\n * Returns true if obj is a Buffer, an ArrayBuffer, a Blob or a File.\n *\n * @private\n */\nexport function isBinary(obj) {\n    return ((withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj))) ||\n        (withNativeBlob && obj instanceof Blob) ||\n        (withNativeFile && obj instanceof File));\n}\nexport function hasBinary(obj, toJSON) {\n    if (!obj || typeof obj !== \"object\") {\n        return false;\n    }\n    if (Array.isArray(obj)) {\n        for (let i = 0, l = obj.length; i < l; i++) {\n            if (hasBinary(obj[i])) {\n                return true;\n            }\n        }\n        return false;\n    }\n    if (isBinary(obj)) {\n        return true;\n    }\n    if (obj.toJSON &&\n        typeof obj.toJSON === \"function\" &&\n        arguments.length === 1) {\n        return hasBinary(obj.toJSON(), true);\n    }\n    for (const key in obj) {\n        if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {\n            return true;\n        }\n    }\n    return false;\n}\n", "import { isBinary } from \"./is-binary.js\";\n/**\n * Replaces every Buffer | ArrayBuffer | Blob | File in packet with a numbered placeholder.\n *\n * @param {Object} packet - socket.io event packet\n * @return {Object} with deconstructed packet and list of buffers\n * @public\n */\nexport function deconstructPacket(packet) {\n    const buffers = [];\n    const packetData = packet.data;\n    const pack = packet;\n    pack.data = _deconstructPacket(packetData, buffers);\n    pack.attachments = buffers.length; // number of binary 'attachments'\n    return { packet: pack, buffers: buffers };\n}\nfunction _deconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (isBinary(data)) {\n        const placeholder = { _placeholder: true, num: buffers.length };\n        buffers.push(data);\n        return placeholder;\n    }\n    else if (Array.isArray(data)) {\n        const newData = new Array(data.length);\n        for (let i = 0; i < data.length; i++) {\n            newData[i] = _deconstructPacket(data[i], buffers);\n        }\n        return newData;\n    }\n    else if (typeof data === \"object\" && !(data instanceof Date)) {\n        const newData = {};\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                newData[key] = _deconstructPacket(data[key], buffers);\n            }\n        }\n        return newData;\n    }\n    return data;\n}\n/**\n * Reconstructs a binary packet from its placeholder packet and buffers\n *\n * @param {Object} packet - event packet with placeholders\n * @param {Array} buffers - binary buffers to put in placeholder positions\n * @return {Object} reconstructed packet\n * @public\n */\nexport function reconstructPacket(packet, buffers) {\n    packet.data = _reconstructPacket(packet.data, buffers);\n    delete packet.attachments; // no longer useful\n    return packet;\n}\nfunction _reconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (data && data._placeholder === true) {\n        const isIndexValid = typeof data.num === \"number\" &&\n            data.num >= 0 &&\n            data.num < buffers.length;\n        if (isIndexValid) {\n            return buffers[data.num]; // appropriate buffer (should be natural order anyway)\n        }\n        else {\n            throw new Error(\"illegal attachments\");\n        }\n    }\n    else if (Array.isArray(data)) {\n        for (let i = 0; i < data.length; i++) {\n            data[i] = _reconstructPacket(data[i], buffers);\n        }\n    }\n    else if (typeof data === \"object\") {\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                data[key] = _reconstructPacket(data[key], buffers);\n            }\n        }\n    }\n    return data;\n}\n", "export function on(obj, ev, fn) {\n    obj.on(ev, fn);\n    return function subDestroy() {\n        obj.off(ev, fn);\n    };\n}\n", "import { PacketType } from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\n/**\n * Internal events.\n * These events can't be emitted by the user.\n */\nconst RESERVED_EVENTS = Object.freeze({\n    connect: 1,\n    connect_error: 1,\n    disconnect: 1,\n    disconnecting: 1,\n    // EventEmitter reserved events: https://nodejs.org/api/events.html#events_event_newlistener\n    newListener: 1,\n    removeListener: 1,\n});\n/**\n * A Socket is the fundamental class for interacting with the server.\n *\n * A Socket belongs to a certain Namespace (by default /) and uses an underlying {@link Manager} to communicate.\n *\n * @example\n * const socket = io();\n *\n * socket.on(\"connect\", () => {\n *   console.log(\"connected\");\n * });\n *\n * // send an event to the server\n * socket.emit(\"foo\", \"bar\");\n *\n * socket.on(\"foobar\", () => {\n *   // an event was received from the server\n * });\n *\n * // upon disconnection\n * socket.on(\"disconnect\", (reason) => {\n *   console.log(`disconnected due to ${reason}`);\n * });\n */\nexport class Socket extends Emitter {\n    /**\n     * `Socket` constructor.\n     */\n    constructor(io, nsp, opts) {\n        super();\n        /**\n         * Whether the socket is currently connected to the server.\n         *\n         * @example\n         * const socket = io();\n         *\n         * socket.on(\"connect\", () => {\n         *   console.log(socket.connected); // true\n         * });\n         *\n         * socket.on(\"disconnect\", () => {\n         *   console.log(socket.connected); // false\n         * });\n         */\n        this.connected = false;\n        /**\n         * Whether the connection state was recovered after a temporary disconnection. In that case, any missed packets will\n         * be transmitted by the server.\n         */\n        this.recovered = false;\n        /**\n         * Buffer for packets received before the CONNECT packet\n         */\n        this.receiveBuffer = [];\n        /**\n         * Buffer for packets that will be sent once the socket is connected\n         */\n        this.sendBuffer = [];\n        /**\n         * The queue of packets to be sent with retry in case of failure.\n         *\n         * Packets are sent one by one, each waiting for the server acknowledgement, in order to guarantee the delivery order.\n         * @private\n         */\n        this._queue = [];\n        /**\n         * A sequence to generate the ID of the {@link QueuedPacket}.\n         * @private\n         */\n        this._queueSeq = 0;\n        this.ids = 0;\n        this.acks = {};\n        this.flags = {};\n        this.io = io;\n        this.nsp = nsp;\n        if (opts && opts.auth) {\n            this.auth = opts.auth;\n        }\n        this._opts = Object.assign({}, opts);\n        if (this.io._autoConnect)\n            this.open();\n    }\n    /**\n     * Whether the socket is currently disconnected\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"connect\", () => {\n     *   console.log(socket.disconnected); // false\n     * });\n     *\n     * socket.on(\"disconnect\", () => {\n     *   console.log(socket.disconnected); // true\n     * });\n     */\n    get disconnected() {\n        return !this.connected;\n    }\n    /**\n     * Subscribe to open, close and packet events\n     *\n     * @private\n     */\n    subEvents() {\n        if (this.subs)\n            return;\n        const io = this.io;\n        this.subs = [\n            on(io, \"open\", this.onopen.bind(this)),\n            on(io, \"packet\", this.onpacket.bind(this)),\n            on(io, \"error\", this.onerror.bind(this)),\n            on(io, \"close\", this.onclose.bind(this)),\n        ];\n    }\n    /**\n     * Whether the Socket will try to reconnect when its Manager connects or reconnects.\n     *\n     * @example\n     * const socket = io();\n     *\n     * console.log(socket.active); // true\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   if (reason === \"io server disconnect\") {\n     *     // the disconnection was initiated by the server, you need to manually reconnect\n     *     console.log(socket.active); // false\n     *   }\n     *   // else the socket will automatically try to reconnect\n     *   console.log(socket.active); // true\n     * });\n     */\n    get active() {\n        return !!this.subs;\n    }\n    /**\n     * \"Opens\" the socket.\n     *\n     * @example\n     * const socket = io({\n     *   autoConnect: false\n     * });\n     *\n     * socket.connect();\n     */\n    connect() {\n        if (this.connected)\n            return this;\n        this.subEvents();\n        if (!this.io[\"_reconnecting\"])\n            this.io.open(); // ensure open\n        if (\"open\" === this.io._readyState)\n            this.onopen();\n        return this;\n    }\n    /**\n     * Alias for {@link connect()}.\n     */\n    open() {\n        return this.connect();\n    }\n    /**\n     * Sends a `message` event.\n     *\n     * This method mimics the WebSocket.send() method.\n     *\n     * @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send\n     *\n     * @example\n     * socket.send(\"hello\");\n     *\n     * // this is equivalent to\n     * socket.emit(\"message\", \"hello\");\n     *\n     * @return self\n     */\n    send(...args) {\n        args.unshift(\"message\");\n        this.emit.apply(this, args);\n        return this;\n    }\n    /**\n     * Override `emit`.\n     * If the event is in `events`, it's emitted normally.\n     *\n     * @example\n     * socket.emit(\"hello\", \"world\");\n     *\n     * // all serializable datastructures are supported (no need to call JSON.stringify)\n     * socket.emit(\"hello\", 1, \"2\", { 3: [\"4\"], 5: Uint8Array.from([6]) });\n     *\n     * // with an acknowledgement from the server\n     * socket.emit(\"hello\", \"world\", (val) => {\n     *   // ...\n     * });\n     *\n     * @return self\n     */\n    emit(ev, ...args) {\n        if (RESERVED_EVENTS.hasOwnProperty(ev)) {\n            throw new Error('\"' + ev.toString() + '\" is a reserved event name');\n        }\n        args.unshift(ev);\n        if (this._opts.retries && !this.flags.fromQueue && !this.flags.volatile) {\n            this._addToQueue(args);\n            return this;\n        }\n        const packet = {\n            type: PacketType.EVENT,\n            data: args,\n        };\n        packet.options = {};\n        packet.options.compress = this.flags.compress !== false;\n        // event ack callback\n        if (\"function\" === typeof args[args.length - 1]) {\n            const id = this.ids++;\n            const ack = args.pop();\n            this._registerAckCallback(id, ack);\n            packet.id = id;\n        }\n        const isTransportWritable = this.io.engine &&\n            this.io.engine.transport &&\n            this.io.engine.transport.writable;\n        const discardPacket = this.flags.volatile && (!isTransportWritable || !this.connected);\n        if (discardPacket) {\n        }\n        else if (this.connected) {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        }\n        else {\n            this.sendBuffer.push(packet);\n        }\n        this.flags = {};\n        return this;\n    }\n    /**\n     * @private\n     */\n    _registerAckCallback(id, ack) {\n        var _a;\n        const timeout = (_a = this.flags.timeout) !== null && _a !== void 0 ? _a : this._opts.ackTimeout;\n        if (timeout === undefined) {\n            this.acks[id] = ack;\n            return;\n        }\n        // @ts-ignore\n        const timer = this.io.setTimeoutFn(() => {\n            delete this.acks[id];\n            for (let i = 0; i < this.sendBuffer.length; i++) {\n                if (this.sendBuffer[i].id === id) {\n                    this.sendBuffer.splice(i, 1);\n                }\n            }\n            ack.call(this, new Error(\"operation has timed out\"));\n        }, timeout);\n        this.acks[id] = (...args) => {\n            // @ts-ignore\n            this.io.clearTimeoutFn(timer);\n            ack.apply(this, [null, ...args]);\n        };\n    }\n    /**\n     * Emits an event and waits for an acknowledgement\n     *\n     * @example\n     * // without timeout\n     * const response = await socket.emitWithAck(\"hello\", \"world\");\n     *\n     * // with a specific timeout\n     * try {\n     *   const response = await socket.timeout(1000).emitWithAck(\"hello\", \"world\");\n     * } catch (err) {\n     *   // the server did not acknowledge the event in the given delay\n     * }\n     *\n     * @return a Promise that will be fulfilled when the server acknowledges the event\n     */\n    emitWithAck(ev, ...args) {\n        // the timeout flag is optional\n        const withErr = this.flags.timeout !== undefined || this._opts.ackTimeout !== undefined;\n        return new Promise((resolve, reject) => {\n            args.push((arg1, arg2) => {\n                if (withErr) {\n                    return arg1 ? reject(arg1) : resolve(arg2);\n                }\n                else {\n                    return resolve(arg1);\n                }\n            });\n            this.emit(ev, ...args);\n        });\n    }\n    /**\n     * Add the packet to the queue.\n     * @param args\n     * @private\n     */\n    _addToQueue(args) {\n        let ack;\n        if (typeof args[args.length - 1] === \"function\") {\n            ack = args.pop();\n        }\n        const packet = {\n            id: this._queueSeq++,\n            tryCount: 0,\n            pending: false,\n            args,\n            flags: Object.assign({ fromQueue: true }, this.flags),\n        };\n        args.push((err, ...responseArgs) => {\n            if (packet !== this._queue[0]) {\n                // the packet has already been acknowledged\n                return;\n            }\n            const hasError = err !== null;\n            if (hasError) {\n                if (packet.tryCount > this._opts.retries) {\n                    this._queue.shift();\n                    if (ack) {\n                        ack(err);\n                    }\n                }\n            }\n            else {\n                this._queue.shift();\n                if (ack) {\n                    ack(null, ...responseArgs);\n                }\n            }\n            packet.pending = false;\n            return this._drainQueue();\n        });\n        this._queue.push(packet);\n        this._drainQueue();\n    }\n    /**\n     * Send the first packet of the queue, and wait for an acknowledgement from the server.\n     * @param force - whether to resend a packet that has not been acknowledged yet\n     *\n     * @private\n     */\n    _drainQueue(force = false) {\n        if (!this.connected || this._queue.length === 0) {\n            return;\n        }\n        const packet = this._queue[0];\n        if (packet.pending && !force) {\n            return;\n        }\n        packet.pending = true;\n        packet.tryCount++;\n        this.flags = packet.flags;\n        this.emit.apply(this, packet.args);\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param packet\n     * @private\n     */\n    packet(packet) {\n        packet.nsp = this.nsp;\n        this.io._packet(packet);\n    }\n    /**\n     * Called upon engine `open`.\n     *\n     * @private\n     */\n    onopen() {\n        if (typeof this.auth == \"function\") {\n            this.auth((data) => {\n                this._sendConnectPacket(data);\n            });\n        }\n        else {\n            this._sendConnectPacket(this.auth);\n        }\n    }\n    /**\n     * Sends a CONNECT packet to initiate the Socket.IO session.\n     *\n     * @param data\n     * @private\n     */\n    _sendConnectPacket(data) {\n        this.packet({\n            type: PacketType.CONNECT,\n            data: this._pid\n                ? Object.assign({ pid: this._pid, offset: this._lastOffset }, data)\n                : data,\n        });\n    }\n    /**\n     * Called upon engine or manager `error`.\n     *\n     * @param err\n     * @private\n     */\n    onerror(err) {\n        if (!this.connected) {\n            this.emitReserved(\"connect_error\", err);\n        }\n    }\n    /**\n     * Called upon engine `close`.\n     *\n     * @param reason\n     * @param description\n     * @private\n     */\n    onclose(reason, description) {\n        this.connected = false;\n        delete this.id;\n        this.emitReserved(\"disconnect\", reason, description);\n    }\n    /**\n     * Called with socket packet.\n     *\n     * @param packet\n     * @private\n     */\n    onpacket(packet) {\n        const sameNamespace = packet.nsp === this.nsp;\n        if (!sameNamespace)\n            return;\n        switch (packet.type) {\n            case PacketType.CONNECT:\n                if (packet.data && packet.data.sid) {\n                    this.onconnect(packet.data.sid, packet.data.pid);\n                }\n                else {\n                    this.emitReserved(\"connect_error\", new Error(\"It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)\"));\n                }\n                break;\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                this.onevent(packet);\n                break;\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                this.onack(packet);\n                break;\n            case PacketType.DISCONNECT:\n                this.ondisconnect();\n                break;\n            case PacketType.CONNECT_ERROR:\n                this.destroy();\n                const err = new Error(packet.data.message);\n                // @ts-ignore\n                err.data = packet.data.data;\n                this.emitReserved(\"connect_error\", err);\n                break;\n        }\n    }\n    /**\n     * Called upon a server event.\n     *\n     * @param packet\n     * @private\n     */\n    onevent(packet) {\n        const args = packet.data || [];\n        if (null != packet.id) {\n            args.push(this.ack(packet.id));\n        }\n        if (this.connected) {\n            this.emitEvent(args);\n        }\n        else {\n            this.receiveBuffer.push(Object.freeze(args));\n        }\n    }\n    emitEvent(args) {\n        if (this._anyListeners && this._anyListeners.length) {\n            const listeners = this._anyListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, args);\n            }\n        }\n        super.emit.apply(this, args);\n        if (this._pid && args.length && typeof args[args.length - 1] === \"string\") {\n            this._lastOffset = args[args.length - 1];\n        }\n    }\n    /**\n     * Produces an ack callback to emit with an event.\n     *\n     * @private\n     */\n    ack(id) {\n        const self = this;\n        let sent = false;\n        return function (...args) {\n            // prevent double callbacks\n            if (sent)\n                return;\n            sent = true;\n            self.packet({\n                type: PacketType.ACK,\n                id: id,\n                data: args,\n            });\n        };\n    }\n    /**\n     * Called upon a server acknowlegement.\n     *\n     * @param packet\n     * @private\n     */\n    onack(packet) {\n        const ack = this.acks[packet.id];\n        if (\"function\" === typeof ack) {\n            ack.apply(this, packet.data);\n            delete this.acks[packet.id];\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon server connect.\n     *\n     * @private\n     */\n    onconnect(id, pid) {\n        this.id = id;\n        this.recovered = pid && this._pid === pid;\n        this._pid = pid; // defined only if connection state recovery is enabled\n        this.connected = true;\n        this.emitBuffered();\n        this.emitReserved(\"connect\");\n        this._drainQueue(true);\n    }\n    /**\n     * Emit buffered events (received and emitted).\n     *\n     * @private\n     */\n    emitBuffered() {\n        this.receiveBuffer.forEach((args) => this.emitEvent(args));\n        this.receiveBuffer = [];\n        this.sendBuffer.forEach((packet) => {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        });\n        this.sendBuffer = [];\n    }\n    /**\n     * Called upon server disconnect.\n     *\n     * @private\n     */\n    ondisconnect() {\n        this.destroy();\n        this.onclose(\"io server disconnect\");\n    }\n    /**\n     * Called upon forced client/server side disconnections,\n     * this method ensures the manager stops tracking us and\n     * that reconnections don't get triggered for this.\n     *\n     * @private\n     */\n    destroy() {\n        if (this.subs) {\n            // clean subscriptions to avoid reconnections\n            this.subs.forEach((subDestroy) => subDestroy());\n            this.subs = undefined;\n        }\n        this.io[\"_destroy\"](this);\n    }\n    /**\n     * Disconnects the socket manually. In that case, the socket will not try to reconnect.\n     *\n     * If this is the last active Socket instance of the {@link Manager}, the low-level connection will be closed.\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   // console.log(reason); prints \"io client disconnect\"\n     * });\n     *\n     * socket.disconnect();\n     *\n     * @return self\n     */\n    disconnect() {\n        if (this.connected) {\n            this.packet({ type: PacketType.DISCONNECT });\n        }\n        // remove socket from pool\n        this.destroy();\n        if (this.connected) {\n            // fire events\n            this.onclose(\"io client disconnect\");\n        }\n        return this;\n    }\n    /**\n     * Alias for {@link disconnect()}.\n     *\n     * @return self\n     */\n    close() {\n        return this.disconnect();\n    }\n    /**\n     * Sets the compress flag.\n     *\n     * @example\n     * socket.compress(false).emit(\"hello\");\n     *\n     * @param compress - if `true`, compresses the sending data\n     * @return self\n     */\n    compress(compress) {\n        this.flags.compress = compress;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the event message will be dropped when this socket is not\n     * ready to send messages.\n     *\n     * @example\n     * socket.volatile.emit(\"hello\"); // the server may or may not receive it\n     *\n     * @returns self\n     */\n    get volatile() {\n        this.flags.volatile = true;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the callback will be called with an error when the\n     * given number of milliseconds have elapsed without an acknowledgement from the server:\n     *\n     * @example\n     * socket.timeout(5000).emit(\"my-event\", (err) => {\n     *   if (err) {\n     *     // the server did not acknowledge the event in the given delay\n     *   }\n     * });\n     *\n     * @returns self\n     */\n    timeout(timeout) {\n        this.flags.timeout = timeout;\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * @example\n     * socket.onAny((event, ...args) => {\n     *   console.log(`got ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * @example\n     * socket.prependAny((event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * }\n     *\n     * socket.onAny(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAny(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAny();\n     *\n     * @param listener\n     */\n    offAny(listener) {\n        if (!this._anyListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAny() {\n        return this._anyListeners || [];\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.onAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.prependAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * }\n     *\n     * socket.onAnyOutgoing(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAnyOutgoing(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAnyOutgoing();\n     *\n     * @param [listener] - the catch-all listener (optional)\n     */\n    offAnyOutgoing(listener) {\n        if (!this._anyOutgoingListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyOutgoingListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyOutgoingListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAnyOutgoing() {\n        return this._anyOutgoingListeners || [];\n    }\n    /**\n     * Notify the listeners for each packet sent\n     *\n     * @param packet\n     *\n     * @private\n     */\n    notifyOutgoingListeners(packet) {\n        if (this._anyOutgoingListeners && this._anyOutgoingListeners.length) {\n            const listeners = this._anyOutgoingListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, packet.data);\n            }\n        }\n    }\n}\n", "/**\n * Initialize backoff timer with `opts`.\n *\n * - `min` initial timeout in milliseconds [100]\n * - `max` max timeout [10000]\n * - `jitter` [0]\n * - `factor` [2]\n *\n * @param {Object} opts\n * @api public\n */\nexport function Backoff(opts) {\n    opts = opts || {};\n    this.ms = opts.min || 100;\n    this.max = opts.max || 10000;\n    this.factor = opts.factor || 2;\n    this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;\n    this.attempts = 0;\n}\n/**\n * Return the backoff duration.\n *\n * @return {Number}\n * @api public\n */\nBackoff.prototype.duration = function () {\n    var ms = this.ms * Math.pow(this.factor, this.attempts++);\n    if (this.jitter) {\n        var rand = Math.random();\n        var deviation = Math.floor(rand * this.jitter * ms);\n        ms = (Math.floor(rand * 10) & 1) == 0 ? ms - deviation : ms + deviation;\n    }\n    return Math.min(ms, this.max) | 0;\n};\n/**\n * Reset the number of attempts.\n *\n * @api public\n */\nBackoff.prototype.reset = function () {\n    this.attempts = 0;\n};\n/**\n * Set the minimum duration\n *\n * @api public\n */\nBackoff.prototype.setMin = function (min) {\n    this.ms = min;\n};\n/**\n * Set the maximum duration\n *\n * @api public\n */\nBackoff.prototype.setMax = function (max) {\n    this.max = max;\n};\n/**\n * Set the jitter\n *\n * @api public\n */\nBackoff.prototype.setJitter = function (jitter) {\n    this.jitter = jitter;\n};\n", "import { Socket as Engine, installTimerFunctions, nextTick, } from \"engine.io-client\";\nimport { Socket } from \"./socket.js\";\nimport * as parser from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Backoff } from \"./contrib/backo2.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\nexport class Manager extends Emitter {\n    constructor(uri, opts) {\n        var _a;\n        super();\n        this.nsps = {};\n        this.subs = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = undefined;\n        }\n        opts = opts || {};\n        opts.path = opts.path || \"/socket.io\";\n        this.opts = opts;\n        installTimerFunctions(this, opts);\n        this.reconnection(opts.reconnection !== false);\n        this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);\n        this.reconnectionDelay(opts.reconnectionDelay || 1000);\n        this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);\n        this.randomizationFactor((_a = opts.randomizationFactor) !== null && _a !== void 0 ? _a : 0.5);\n        this.backoff = new Backoff({\n            min: this.reconnectionDelay(),\n            max: this.reconnectionDelayMax(),\n            jitter: this.randomizationFactor(),\n        });\n        this.timeout(null == opts.timeout ? 20000 : opts.timeout);\n        this._readyState = \"closed\";\n        this.uri = uri;\n        const _parser = opts.parser || parser;\n        this.encoder = new _parser.Encoder();\n        this.decoder = new _parser.Decoder();\n        this._autoConnect = opts.autoConnect !== false;\n        if (this._autoConnect)\n            this.open();\n    }\n    reconnection(v) {\n        if (!arguments.length)\n            return this._reconnection;\n        this._reconnection = !!v;\n        return this;\n    }\n    reconnectionAttempts(v) {\n        if (v === undefined)\n            return this._reconnectionAttempts;\n        this._reconnectionAttempts = v;\n        return this;\n    }\n    reconnectionDelay(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelay;\n        this._reconnectionDelay = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMin(v);\n        return this;\n    }\n    randomizationFactor(v) {\n        var _a;\n        if (v === undefined)\n            return this._randomizationFactor;\n        this._randomizationFactor = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setJitter(v);\n        return this;\n    }\n    reconnectionDelayMax(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelayMax;\n        this._reconnectionDelayMax = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMax(v);\n        return this;\n    }\n    timeout(v) {\n        if (!arguments.length)\n            return this._timeout;\n        this._timeout = v;\n        return this;\n    }\n    /**\n     * Starts trying to reconnect if reconnection is enabled and we have not\n     * started reconnecting yet\n     *\n     * @private\n     */\n    maybeReconnectOnOpen() {\n        // Only try to reconnect if it's the first time we're connecting\n        if (!this._reconnecting &&\n            this._reconnection &&\n            this.backoff.attempts === 0) {\n            // keeps reconnection from firing twice for the same reconnection loop\n            this.reconnect();\n        }\n    }\n    /**\n     * Sets the current transport `socket`.\n     *\n     * @param {Function} fn - optional, callback\n     * @return self\n     * @public\n     */\n    open(fn) {\n        if (~this._readyState.indexOf(\"open\"))\n            return this;\n        this.engine = new Engine(this.uri, this.opts);\n        const socket = this.engine;\n        const self = this;\n        this._readyState = \"opening\";\n        this.skipReconnect = false;\n        // emit `open`\n        const openSubDestroy = on(socket, \"open\", function () {\n            self.onopen();\n            fn && fn();\n        });\n        const onError = (err) => {\n            this.cleanup();\n            this._readyState = \"closed\";\n            this.emitReserved(\"error\", err);\n            if (fn) {\n                fn(err);\n            }\n            else {\n                // Only do this if there is no fn to handle the error\n                this.maybeReconnectOnOpen();\n            }\n        };\n        // emit `error`\n        const errorSub = on(socket, \"error\", onError);\n        if (false !== this._timeout) {\n            const timeout = this._timeout;\n            // set timer\n            const timer = this.setTimeoutFn(() => {\n                openSubDestroy();\n                onError(new Error(\"timeout\"));\n                socket.close();\n            }, timeout);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n        this.subs.push(openSubDestroy);\n        this.subs.push(errorSub);\n        return this;\n    }\n    /**\n     * Alias for open()\n     *\n     * @return self\n     * @public\n     */\n    connect(fn) {\n        return this.open(fn);\n    }\n    /**\n     * Called upon transport open.\n     *\n     * @private\n     */\n    onopen() {\n        // clear old subs\n        this.cleanup();\n        // mark as open\n        this._readyState = \"open\";\n        this.emitReserved(\"open\");\n        // add new subs\n        const socket = this.engine;\n        this.subs.push(on(socket, \"ping\", this.onping.bind(this)), on(socket, \"data\", this.ondata.bind(this)), on(socket, \"error\", this.onerror.bind(this)), on(socket, \"close\", this.onclose.bind(this)), on(this.decoder, \"decoded\", this.ondecoded.bind(this)));\n    }\n    /**\n     * Called upon a ping.\n     *\n     * @private\n     */\n    onping() {\n        this.emitReserved(\"ping\");\n    }\n    /**\n     * Called with data.\n     *\n     * @private\n     */\n    ondata(data) {\n        try {\n            this.decoder.add(data);\n        }\n        catch (e) {\n            this.onclose(\"parse error\", e);\n        }\n    }\n    /**\n     * Called when parser fully decodes a packet.\n     *\n     * @private\n     */\n    ondecoded(packet) {\n        // the nextTick call prevents an exception in a user-provided event listener from triggering a disconnection due to a \"parse error\"\n        nextTick(() => {\n            this.emitReserved(\"packet\", packet);\n        }, this.setTimeoutFn);\n    }\n    /**\n     * Called upon socket error.\n     *\n     * @private\n     */\n    onerror(err) {\n        this.emitReserved(\"error\", err);\n    }\n    /**\n     * Creates a new socket for the given `nsp`.\n     *\n     * @return {Socket}\n     * @public\n     */\n    socket(nsp, opts) {\n        let socket = this.nsps[nsp];\n        if (!socket) {\n            socket = new Socket(this, nsp, opts);\n            this.nsps[nsp] = socket;\n        }\n        else if (this._autoConnect && !socket.active) {\n            socket.connect();\n        }\n        return socket;\n    }\n    /**\n     * Called upon a socket close.\n     *\n     * @param socket\n     * @private\n     */\n    _destroy(socket) {\n        const nsps = Object.keys(this.nsps);\n        for (const nsp of nsps) {\n            const socket = this.nsps[nsp];\n            if (socket.active) {\n                return;\n            }\n        }\n        this._close();\n    }\n    /**\n     * Writes a packet.\n     *\n     * @param packet\n     * @private\n     */\n    _packet(packet) {\n        const encodedPackets = this.encoder.encode(packet);\n        for (let i = 0; i < encodedPackets.length; i++) {\n            this.engine.write(encodedPackets[i], packet.options);\n        }\n    }\n    /**\n     * Clean up transport subscriptions and packet buffer.\n     *\n     * @private\n     */\n    cleanup() {\n        this.subs.forEach((subDestroy) => subDestroy());\n        this.subs.length = 0;\n        this.decoder.destroy();\n    }\n    /**\n     * Close the current socket.\n     *\n     * @private\n     */\n    _close() {\n        this.skipReconnect = true;\n        this._reconnecting = false;\n        this.onclose(\"forced close\");\n        if (this.engine)\n            this.engine.close();\n    }\n    /**\n     * Alias for close()\n     *\n     * @private\n     */\n    disconnect() {\n        return this._close();\n    }\n    /**\n     * Called upon engine close.\n     *\n     * @private\n     */\n    onclose(reason, description) {\n        this.cleanup();\n        this.backoff.reset();\n        this._readyState = \"closed\";\n        this.emitReserved(\"close\", reason, description);\n        if (this._reconnection && !this.skipReconnect) {\n            this.reconnect();\n        }\n    }\n    /**\n     * Attempt a reconnection.\n     *\n     * @private\n     */\n    reconnect() {\n        if (this._reconnecting || this.skipReconnect)\n            return this;\n        const self = this;\n        if (this.backoff.attempts >= this._reconnectionAttempts) {\n            this.backoff.reset();\n            this.emitReserved(\"reconnect_failed\");\n            this._reconnecting = false;\n        }\n        else {\n            const delay = this.backoff.duration();\n            this._reconnecting = true;\n            const timer = this.setTimeoutFn(() => {\n                if (self.skipReconnect)\n                    return;\n                this.emitReserved(\"reconnect_attempt\", self.backoff.attempts);\n                // check again for the case socket closed in above events\n                if (self.skipReconnect)\n                    return;\n                self.open((err) => {\n                    if (err) {\n                        self._reconnecting = false;\n                        self.reconnect();\n                        this.emitReserved(\"reconnect_error\", err);\n                    }\n                    else {\n                        self.onreconnect();\n                    }\n                });\n            }, delay);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n    }\n    /**\n     * Called upon successful reconnect.\n     *\n     * @private\n     */\n    onreconnect() {\n        const attempt = this.backoff.attempts;\n        this._reconnecting = false;\n        this.backoff.reset();\n        this.emitReserved(\"reconnect\", attempt);\n    }\n}\n", "import { url } from \"./url.js\";\nimport { Manager } from \"./manager.js\";\nimport { Socket } from \"./socket.js\";\n/**\n * Managers cache.\n */\nconst cache = {};\nfunction lookup(uri, opts) {\n    if (typeof uri === \"object\") {\n        opts = uri;\n        uri = undefined;\n    }\n    opts = opts || {};\n    const parsed = url(uri, opts.path || \"/socket.io\");\n    const source = parsed.source;\n    const id = parsed.id;\n    const path = parsed.path;\n    const sameNamespace = cache[id] && path in cache[id][\"nsps\"];\n    const newConnection = opts.forceNew ||\n        opts[\"force new connection\"] ||\n        false === opts.multiplex ||\n        sameNamespace;\n    let io;\n    if (newConnection) {\n        io = new Manager(source, opts);\n    }\n    else {\n        if (!cache[id]) {\n            cache[id] = new Manager(source, opts);\n        }\n        io = cache[id];\n    }\n    if (parsed.query && !opts.query) {\n        opts.query = parsed.queryKey;\n    }\n    return io.socket(parsed.path, opts);\n}\n// so that \"lookup\" can be used both as a function (e.g. `io(...)`) and as a\n// namespace (e.g. `io.connect(...)`), for backward compatibility\nObject.assign(lookup, {\n    Manager,\n    Socket,\n    io: lookup,\n    connect: lookup,\n});\n/**\n * Protocol version.\n *\n * @public\n */\nexport { protocol } from \"socket.io-parser\";\n/**\n * Expose constructors for standalone build.\n *\n * @public\n */\nexport { Manager, Socket, lookup as io, lookup as connect, lookup as default, };\n", "/** A zero dependency web component that will display a managed uibuilder variable.\n *\n * Version: 1.0.1 2023-12-27\n */\n/*\n  Copyright (c) 2023-2024 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n// const template = document.createElement('template')\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<link type=\"text/css\" rel=\"stylesheet\" href=\"\"../uibuilder/uib-brand.min.css\"\" media=\"all\"><span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`\n// {/* <style>@import url(\"../uibuilder/uib-brand.min.css\");</style><span></span> */}\n// `\n\nexport default class UibVar extends HTMLElement {\n    //#region --- Class Properties ---\n    /** @type {string} Name of the uibuilder mangaged variable to use */\n    variable\n    /** Current value of the watched variable */\n    value\n    /** Whether to output if the variable is undefined */\n    undef = false\n    /** Whether to send update value to Node-RED on change */\n    report = false\n    /** What is the value type */\n    type = 'plain'\n    /** what are the available types? */\n    types = ['plain', 'html', 'markdown', 'object']\n    /** Holds uibuilder.onTopic listeners */\n    topicMonitors = {}\n    /** Is UIBUILDER loaded? */\n    uib = !!window['uibuilder']\n\n    /** Mini jQuery-like shadow dom selector (see constructor) */\n    $\n\n    /** Holds a count of how many instances of this component are on the page */\n    static _iCount = 0\n    /** @type {Array<string>} List of all of the html attribs (props) listened to */\n    static props = ['filter', 'id', 'name', 'report', 'topic', 'type', 'undefined', 'variable',]\n    //#endregion --- Class Properties ---\n\n    constructor() {\n        super()\n        this.shadow = this.attachShadow({ mode: 'open', delegatesFocus: true })\n        //  .append(template.content.cloneNode(true))\n\n        this.$ = this.shadowRoot.querySelector.bind(this.shadowRoot)\n\n        // Apply external styles to the shadow dom - assumes you use index.css in same url location as main url\n        this.css = document.createElement('link')\n        this.css.setAttribute('type', 'text/css')\n        this.css.setAttribute('rel', 'stylesheet')\n        this.css.setAttribute('href', './index.css')\n\n        this.dispatchEvent(new Event('uib-var:construction', { bubbles: true, composed: true }))\n    }\n\n    // Makes HTML attribute change watched\n    static get observedAttributes() {\n        return UibVar.props\n    }\n\n    /** Handle watched attributes\n     * NOTE: On initial startup, this is called for each watched attrib set in HTML - BEFORE connectedCallback is called.\n     * Attribute values can only ever be strings\n     * @param {string} attrib The name of the attribute that is changing\n     * @param {string} newVal The new value of the attribute\n     * @param {string} oldVal The old value of the attribute\n     */\n    attributeChangedCallback(attrib, oldVal, newVal) {\n        if ( oldVal === newVal ) return\n\n        switch (attrib) {\n            case 'variable': {\n                // NB Doesn't check if var exists because it might not be set yet\n                if (newVal === '') throw new Error('[uib-var] Attribute \"variable\" MUST be set to a UIBUILDER managed variable name')\n                this.variable = newVal\n                this.doWatch()\n                break\n            }\n            case 'undefined': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.undef = true\n                else this.undef = false\n                break\n            }\n            case 'report': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.report = true\n                else this.report = false\n                break\n            }\n            case 'type': {\n                if (newVal === '' || !this.types.includes(newVal.toLowerCase())) this.type = 'plain'\n                else this.type = newVal\n                break\n            }\n            case 'topic': {\n                // console.log(1, attrib, newVal)\n                // Handle empty topic\n                if (!newVal) break\n                // Ignore if not using uibuilder\n                if (!this.uib) break\n                // If variable attrib set, give warning and ignore\n                if (this.variable) {\n                    console.warn('\u26A0\uFE0F [uib-var] Cannot process both variable and topic attributes, use only 1. Using variable')\n                    break\n                }\n\n                this.topic = newVal\n\n                // Cancel old listener just in case\n                if (this.topicMonitors[newVal]) uibuilder.cancelTopic(newVal, this.topicMonitors[newVal])\n                // Set up a uibuilder listener for this topic - ASSUMES msg.payload contains the VALUE to show\n                this.topicMonitors[newVal] = uibuilder.onTopic(newVal, (msg) => {\n                    // console.log('topicMonitor ', newVal, msg)\n                    this.value = msg.payload\n                    this.varDom()\n                    if (this.report === true) window['uibuilder'].send({ topic: this.variable, payload: this.value || undefined })\n                })\n                this.varDom()\n\n                break\n            }\n            case 'filter': {\n                this.filter = undefined\n                this.filterArgs = []\n\n                // Handle empty filter\n                if (!newVal) break\n\n                this.filter = newVal\n\n                // Filter the input - at least limit the length of the attr\n                newVal = newVal.slice(0, 127)\n                // Remove spaces and then separate fn name from potential extra arguments\n                const f = newVal.replace(/\\s/g, '').match(/([a-zA-Z_$][a-zA-Z_$0-9.-]+)(\\((.*)\\))?/)\n                if (!f) {\n                    console.warn(`\u26A0\uFE0F [uib-var] Filter function \"${newVal}\" invalid. Cannot process.`)\n                    break\n                }\n                // Fn name\n                this.filter = f[1]\n                // Fn arguments\n                if (f[3]) { // undefined if no args found\n                    // TODO Do we really want to try this?\n                    try {\n                        this.filterArgs = JSON.parse(f[3])\n                    } catch (e) {}\n\n                    this.filterArgs = f[3].split(',').map((x) => {\n                        // No objects/arrays allowed - if they have a , they are split\n                        x = x.trim()\n                        // @ts-ignore NB: Do NOT use Number.isNaN here, it is too narrow minded\n                        if (isNaN(x)) {\n                            // String inside string ends up double quoted so remove those\n                            let y = x.replace(/^[\"'`]/, '').replace(/[\"'`]$/, '')\n                            // Attempt very limited parse in case it is valid object/array\n                            try {\n                                y = new Function(`return ${y}`)() // eslint-disable-line no-new-func\n                            } catch (e) {}\n                            return y\n                        }\n                        return Number(x)\n                    })\n                }\n\n                // Apply the filter directly if neither variable nor topic attribs set\n                if (!this.variable && !this.topic) this.varDom(false)\n                break\n            }\n\n            default: {\n                this[attrib] = newVal\n                break\n            }\n        }\n    } // --- end of attributeChangedCallback --- //\n\n    // Runs when an instance is added to the DOM\n    connectedCallback() {\n        // Make sure instance has an ID. Create an id from name or calculation if needed\n        if (!this.id) {\n            if (!this.name) this.name = this.getAttribute('name')\n            if (this.name) this.id = this.name.toLowerCase().replace(/\\s/g, '_')\n            else this.id = `uib-var-${++UibVar._iCount}`\n        }\n    }  // ---- end of connectedCallback ---- //\n\n    // Runs when an instance is removed from the DOM\n    disconnectedCallback() {\n        // Ignore if not using uibuilder\n        if (this.uib) {\n            Object.keys(this.topicMonitors).forEach( topic => {\n                uibuilder.cancelTopic(topic, this.topicMonitors[topic])\n            })\n        }\n    } // ---- end of disconnectedCallback ---- //\n\n    /** Process changes to the required uibuilder variable */\n    doWatch() {\n        if (!this.variable) throw new Error('No variable name provided')\n        // if (!this.uib) throw new Error('UIBUILDER client library not loaded - this component must be loaded AFTER the UIBUILDER library')\n\n        this.value = window['uibuilder'].get(this.variable)\n        this.varDom()\n\n        // Watch for changes in the variable\n        window['uibuilder'].onChange(this.variable, (val) => {\n            this.value = val\n            this.varDom()\n            if (this.report === true) window['uibuilder'].send({ topic: this.variable, payload: this.value || undefined })\n        })\n    }\n\n    /** Convert this.value to DOM output (applies output filter if needed)\n     * @param {boolean} chkVal If true (default), check for undefined value. False used to run filter even with no value set.\n     */\n    varDom(chkVal = true) {\n        // If user doesn't want to show undefined vars, allow the component slot to show instead\n        if (chkVal === true && !this.value && this.undef !== true) {\n            this.shadow.innerHTML = '<slot></slot>'\n            return\n        }\n\n        // Apply the filter to the value before display\n        const val = chkVal ? this.doFilter(this.value) : this.doFilter()\n\n        // console.log('\uD83E\uDDEA varDOM: ', val, typeof val, this.type)\n\n        let out = val\n\n        switch (this.type) {\n            case 'markdown': {\n                if (this.uib) out = window['uibuilder'].convertMarkdown(val)\n                break\n            }\n\n            case 'object': {\n                // console.log(window['uibuilder'].syntaxHighlight(val))\n                out = `<pre class=\"syntax-highlight\">${this.uib ? window['uibuilder'].syntaxHighlight(val) : val}</pre>`\n                break\n            }\n\n            case 'plain':\n            case 'html':\n            default: {\n                const t = typeof val\n                if (Array.isArray(val) || t === '[object Object]' || t === 'object') {\n                    try {\n                        out = JSON.stringify(val)\n                    } catch (e) {}\n                }\n                break\n            }\n        }\n        if (this.uib) this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(out)\n        else this.shadow.innerHTML = out\n\n        this.shadow.appendChild(this.css)\n    }\n\n    /** Apply value filter if specified\n     * @param {*} value The value to change\n     * @returns {*} The amended value that will be displayed\n     */\n    doFilter(value) {\n        if (this.filter) {\n            // Cater for dotted notation functions (e.g. uibuilder.get)\n            const splitFilter = this.filter.split('.')\n            let globalFn = globalThis[splitFilter[0]]\n            if (globalFn && splitFilter.length > 1) {\n                const parts = [splitFilter.pop()]\n                parts.forEach( part => {\n                    globalFn = globalFn[part]\n                } )\n            }\n            if (!globalFn && this.uib === true) globalFn = globalThis['uibuilder'][splitFilter[0]]\n            if (globalFn && typeof globalFn !== 'function' ) globalFn = undefined\n            if (globalFn) {\n                const argList = value === undefined ? [...this.filterArgs] : [value, ...this.filterArgs]\n                value = Reflect.apply(globalFn, value ?? globalFn, argList)\n            } else {\n                console.warn(`\u26A0\uFE0F [uib-var] Filter function \"${this.filter}\" ${typeof globalFn === 'object' ? 'is an object not a function' : 'not found'}`)\n            }\n        }\n\n        return value\n    }\n}\n\n// Add the class as a new Custom Element to the window object\n// customElements.define('uib-var', UibVar)\n"],
+  "mappings": 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"expectedLength", "isBinary", "headerArray", "n", "ERROR_PACKET", "data", "protocol", "Emitter", "obj", "mixin", "key", "event", "fn", "on", "callbacks", "cb", "i", "args", "len", "globalThisShim", "pick", "obj", "attr", "acc", "k", "NATIVE_SET_TIMEOUT", "globalThisShim", "NATIVE_CLEAR_TIMEOUT", "installTimerFunctions", "opts", "BASE64_OVERHEAD", "byteLength", "utf8Length", "str", "c", "length", "l", "encode", "obj", "str", "i", "decode", "qs", "qry", "pairs", "l", "pair", "TransportError", "reason", "description", "context", "Transport", "Emitter", "opts", "installTimerFunctions", "packets", "data", "packet", "decodePacket", "details", "onPause", "schema", "query", "hostname", "encodedQuery", "encode", "alphabet", "length", "map", "seed", "i", "prev", "encode", "num", "encoded", "yeast", "now", "encode", "prev", "seed", "i", "length", "map", "alphabet", "value", "hasCORS", "XHR", "opts", "xdomain", "hasCORS", "globalThisShim", "empty", "hasXHR2", "XHR", "Polling", "Transport", "opts", "isSSL", "port", "forceBase64", "onPause", "pause", "total", "data", "callback", "packet", "decodePayload", "close", "packets", "encodePayload", "schema", "query", "yeast", "Request", "fn", "req", "xhrStatus", "context", "_Request", "Emitter", "uri", "installTimerFunctions", "_a", "pick", "xhr", "i", "e", "err", "fromError", "unloadHandler", "terminationEvent", "globalThisShim", "nextTick", "cb", "setTimeoutFn", "WebSocket", "globalThisShim", "usingBrowserWebSocket", "defaultBinaryType", "isReactNative", "WS", "Transport", "opts", "uri", "protocols", "pick", "usingBrowserWebSocket", "WebSocket", "err", "closeEvent", "ev", "packets", "i", "packet", "lastPacket", "encodePacket", "data", "nextTick", "schema", "query", "yeast", "WT", "Transport", "err", "stream", "decoderStream", "createPacketDecoderStream", "reader", "encoderStream", "createPacketEncoderStream", "read", "done", "value", "packet", "packets", "i", "lastPacket", "nextTick", "_a", "transports", "WS", "WT", "Polling", "re", "parts", "parse", "str", "src", "b", "e", "m", "uri", "i", "pathNames", "queryKey", "obj", "path", "regx", "names", "query", "data", "$0", "$1", "$2", "Socket", "_Socket", "Emitter", "uri", "opts", "defaultBinaryType", "parse", "installTimerFunctions", "decode", "name", "query", "protocol", "transports", "transport", "reason", "failed", "onTransportOpen", "msg", "cleanup", "err", "freezeTransport", "onerror", "error", "onTransportClose", "onclose", "onupgrade", "to", "i", "l", "packet", "data", "packets", "payloadSize", "byteLength", "options", "fn", "type", "close", "cleanupAndClose", "waitForUpgrade", "description", "upgrades", "filteredUpgrades", "j", "protocol", "Socket", "url", "uri", "path", "loc", "obj", "parse", "host", "esm_exports", "__export", "Decoder", "Encoder", "PacketType", "protocol", "withNativeArrayBuffer", "isView", "obj", "toString", "withNativeBlob", "withNativeFile", "isBinary", "hasBinary", "toJSON", "i", "l", "key", "deconstructPacket", "packet", "buffers", "packetData", "pack", "_deconstructPacket", "data", "isBinary", "placeholder", "newData", "key", "reconstructPacket", "_reconstructPacket", "i", "RESERVED_EVENTS", "protocol", "PacketType", "Encoder", "replacer", "obj", "hasBinary", "str", "deconstruction", "deconstructPacket", "pack", "buffers", "isObject", "value", "Decoder", "_Decoder", "Emitter", "reviver", "packet", "isBinaryEvent", "BinaryReconstructor", "isBinary", "i", "p", "start", "buf", "next", "c", "payload", "type", "binData", "reconstructPacket", "on", "obj", "ev", "fn", "RESERVED_EVENTS", "Socket", "Emitter", "io", "nsp", "opts", "on", "args", "ev", "packet", "PacketType", "id", "ack", "isTransportWritable", "_a", "timeout", "timer", "i", "withErr", "resolve", "reject", "arg1", "arg2", "err", "responseArgs", "force", "data", "reason", "description", "listeners", "listener", "self", "sent", "pid", "subDestroy", "compress", "Backoff", "opts", "ms", "rand", "deviation", "min", "max", "jitter", "Manager", "Emitter", "uri", "opts", "_a", "installTimerFunctions", "Backoff", "_parser", "esm_exports", "v", "fn", "Socket", "socket", "self", "openSubDestroy", "on", "onError", "err", "errorSub", "timeout", "timer", "data", "e", "packet", "nextTick", "nsp", "nsps", "encodedPackets", "subDestroy", "reason", "description", "delay", "attempt", "cache", "lookup", "uri", "opts", "parsed", "url", "source", "id", "path", "sameNamespace", "newConnection", "io", "Manager", "Socket", "_UibVar", "__publicField", "attrib", "oldVal", "newVal", "msg", "f", "x", "y", "topic", "val", "chkVal", "out", "t", "value", "splitFilter", "globalFn", "part", "argList", "UibVar", "version", "isMinified", "param", "logLevel", "LOG_STYLES", "log", "args", "level", "strLevel", "head", "makeMeAnObject", "thing", "property", "out", "urlJoin", "e", "syntaxHighlight", "json", "match", "cls", "_ui", "Ui", "_a", "_pingInterval", "_propChangeCallbacks", "_msgRecvdByTopicCallbacks", "_timerid", "_MsgHandler", "_isShowMsg", "_isShowStatus", "_sendUrlHash", "_extCommands", "_managedVars", "_showStatus", "_uiObservers", "Uib", "__publicField", "__privateAdd", "cb", "c", "splitC", "event", "__privateGet", "fullPath", "autoloadVars", "id", "prop", "val", "store", "autoload", "value", "autoVars", "title", "details", "callback", "nextCbRef", "propChangeCallback", "cbRef", "topic", "msgRecvdEvtCallback", "msg", "receivedMsg", "serverTimestamp", "offset", "originator", "ms", "oReq", "headers", "elapsedTime", "__privateSet", "varToCopy", "data", "cssSelector", "el", "exists", "url", "deflt", "ret", "toggle", "decimalPlaces", "intl", "opts", "mdText", "uiOptions", "textFn", "component", "html", "type", "ui", "propName", "showHide", "parent", "slot", "config", "res", "err", "root", "entry", "startStop", "send", "showLog", "targetNode", "that", "mutationList", "mu", "oMu", "an", "i", "htmlCache", "receivedCtrlMsg", "obj", "r", "msgToSend", "channel", "numMsgs", "cmd", "quiet", "response", "info", "newUrl", "txtToSend", "domevent", "target", "props", "key", "ignoreAttribs", "attribs", "name", "form", "frmVals", "frmEl", "v", "classes", "payload", "nprops", "room", "ioNamespace", "u", "t", "delay", "factor", "depth", "reason", "lookup", "options", "eMsg", "uibuilder", "uibuilder_module_default", "uibuilder", "UibVar"]
 }

From 2278d965163bd9571eb54cdeedaa14c264b88348 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Fri, 29 Dec 2023 13:25:32 +0000
Subject: [PATCH 46/78] base margin now a var. New checklist util classes
 added.

---
 front-end/uib-brand.css     | 35 ++++++++++++++++++++++++++++-------
 front-end/uib-brand.min.css |  4 ++--
 2 files changed, 30 insertions(+), 9 deletions(-)

diff --git a/front-end/uib-brand.css b/front-end/uib-brand.css
index c1be386a..f4855628 100644
--- a/front-end/uib-brand.css
+++ b/front-end/uib-brand.css
@@ -62,6 +62,7 @@
     --lightness-value: var(--light-lightness);
     --lightness: calc(var(--lightness-value) + var(--lightness-bias));
 
+    --base-margin: 1rem;
     --border-radius: 0.5rem; /*8px;*/
     --border-pad: 0.5rem;
     --border-margin: 0;
@@ -468,8 +469,8 @@ html {
     accent-color: var(--brand);
 }
 body {
-    margin-left: 1rem;
-    margin-right: 1rem;
+    margin-left: var(--base-margin);
+    margin-right: var(--base-margin);
     /* padding: 0.3rem; */
     font-family: var(--font-family);
 }
@@ -482,7 +483,7 @@ img, picture, video, canvas, svg {
     vertical-align: bottom;
     max-width: 100%;
     background-color: var(--surface2);
-    margin:1rem;
+    margin:var(--base-margin);
 }
 p, h1, h2, h3, h4, h5, h6, heading, li, dl, dt, blockquote {
     overflow-wrap: break-word;
@@ -491,8 +492,8 @@ p, h1, h2, h3, h4, h5, h6, heading, li, dl, dt, blockquote {
     word-break: break-word;
 }
 div > p {
-    margin-left: 1rem;
-    margin-right: 1rem;
+    margin-left: var(--base-margin);
+    margin-right: var(--base-margin);
 }
 button, input[type="button" i], input[type="reset" i], input[type="submit" i] {
     /* display: inline-flex; */
@@ -539,8 +540,8 @@ code {
     font-size: 120%;
 }
 main {
-    padding-left: 1rem;
-    padding-right: 1rem;
+    padding-left: var(--base-margin);
+    padding-right: var(--base-margin);
     max-width: 64rem;
     margin-left:auto;
     margin-right: auto;    
@@ -672,6 +673,26 @@ form > label:focus-within {
 
 /*#endregion --- Forms --- */
 
+/*#region --- Lists --- */
+.checklist {
+    margin-inline-start: var(--base-margin);
+    margin-inline-end: var(--base-margin);
+    padding-inline-start: .2rem;
+}
+li.check, li.completed {
+    list-style-type: "✅";
+    padding-left: 0.4rem;
+}
+li.uncheck, li.unstarted {
+    list-style-type: "❌";
+    padding-left: 0.4rem;
+}
+li.started {
+    list-style-type: "✔️";
+    padding-left: 0.4rem;
+}
+/*#endregion --- Lists --- */
+
 /*#region ---- Utility ---- */
 
 .emoji { /* Nicer, cross-platform emoji's */
diff --git a/front-end/uib-brand.min.css b/front-end/uib-brand.min.css
index 050e857c..5b3fdf01 100644
--- a/front-end/uib-brand.min.css
+++ b/front-end/uib-brand.min.css
@@ -1,4 +1,4 @@
-:root,:root.light{color-scheme:light dark;--mode:light;--uib-css:uib-brand;--font-family:sans-serif;--brand-hue:200;--text-hue:var(--brand-hue);--surface-hue:var(--brand-hue);--complementary-offset:180;--accent-offset:30;--saturation-bias:0;--light-saturation:.66;--dark-saturation:calc(var(--light-saturation) * .6);--saturation-value:var(--light-saturation);--saturation:calc(var(--saturation-value) + var(--saturation-bias));--lightness-bias:0;--light-lightness:.57;--dark-lightness:calc(var(--light-lightness) * .75);--lightness-value:var(--light-lightness);--lightness:calc(var(--lightness-value) + var(--lightness-bias));--border-radius:0.5rem;--border-pad:0.5rem;--border-margin:0;--grid-fit-min:15rem;--brand:hsl(
+:root,:root.light{color-scheme:light dark;--mode:light;--uib-css:uib-brand;--font-family:sans-serif;--brand-hue:200;--text-hue:var(--brand-hue);--surface-hue:var(--brand-hue);--complementary-offset:180;--accent-offset:30;--saturation-bias:0;--light-saturation:.66;--dark-saturation:calc(var(--light-saturation) * .6);--saturation-value:var(--light-saturation);--saturation:calc(var(--saturation-value) + var(--saturation-bias));--lightness-bias:0;--light-lightness:.57;--dark-lightness:calc(var(--light-lightness) * .75);--lightness-value:var(--light-lightness);--lightness:calc(var(--lightness-value) + var(--lightness-bias));--base-margin:1rem;--border-radius:0.5rem;--border-pad:0.5rem;--border-margin:0;--grid-fit-min:15rem;--brand:hsl(
         var(--brand-hue)
         calc(100% * var(--saturation))
         calc(100% * var(--lightness))
@@ -121,4 +121,4 @@
         var(--secondary-hue)
         calc(100% * var(--saturation))
         calc(100% * var(--lightness))
-    );--secondary:var(--secondary-bg)}@media (prefers-color-scheme:light){:root{color-scheme:light dark;--mode:light}}@media (prefers-color-scheme:dark){:root{color-scheme:dark light;--mode:dark;--saturation-value:var(--dark-saturation);--lightness-value:var(--dark-lightness);--surface-shadow:var(--surface-shadow-dark);--shadow-strength:var(--shadow-strength-dark);--text-factor:var(--dark-text-factor);--text-lightness:var(--dark-text-lightness);--surfaces-factor:var(--dark-surfaces-factor);--surfaces-lightness:var(--dark-surfaces-lightness)}}:root.dark{color-scheme:dark light;--mode:dark;--saturation-value:var(--dark-saturation);--lightness-value:var(--dark-lightness);--surface-shadow:var(--surface-shadow-dark);--shadow-strength:var(--shadow-strength-dark);--text-factor:var(--dark-text-factor);--text-lightness:var(--dark-text-lightness);--surfaces-factor:var(--dark-surfaces-factor);--surfaces-lightness:var(--dark-surfaces-lightness)}.brand{color:var(--text1);background-color:var(--brand)}.complementary{color:var(--text1);background-color:var(--complementary)}.surface1{background-color:var(--surface1);color:var(--text2)}.surface2{background-color:var(--surface2);color:var(--text2)}.surface3{background-color:var(--surface3);color:var(--text1)}.surface4{background-color:var(--surface4);color:var(--text1)}.surface5{background-color:var(--surface5);color:var(--text1)}.rad-shadow{box-shadow:var(--shadow)}.info{color:var(--text1)!important;background-color:var(--info)!important}.info-intense{color:var(--text1)!important;background-color:var(--info-intense)!important}.success{color:var(--text1)!important;background-color:var(--success)!important}.success-intense{color:var(--text1)!important;background-color:var(--success-intense)!important}.warn,.warning{color:var(--text1)!important;background-color:var(--warning)!important}.warn-intense,.warning-intense{color:var(--text1)!important;background-color:var(--warning-intense)!important}.danger,.error,.failure{color:var(--text1)!important;background-color:var(--failure)!important}.danger-intense,.error-intense,.failure-intense{color:var(--text1)!important;background-color:var(--failure-intense)!important}.primary{color:var(--primary-fg);background-color:var(--primary-bg)}.secondary{color:var(--secondary-fg);background-color:var(--secondary-bg)}*{box-sizing:border-box}html{line-height:1.5;font-size:100%;background-color:var(--surface2);color:var(--text2);accent-color:var(--brand)}body{margin-left:1rem;margin-right:1rem;font-family:var(--font-family)}h1,h2,h3,h4,h5,h6,heading{line-height:1.3}canvas,img,picture,svg,video{object-fit:cover;vertical-align:bottom;max-width:100%;background-color:var(--surface2);margin:1rem}blockquote,dl,dt,h1,h2,h3,h4,h5,h6,heading,li,p{overflow-wrap:break-word;-webkit-hyphens:auto;hyphens:auto;word-break:break-word}div>p{margin-left:1rem;margin-right:1rem}button,input[type=button i],input[type=reset i],input[type=submit i]{align-items:center;justify-content:center;border:none;padding:.5rem 1rem;text-decoration:none;background-color:var(--info);color:var(--text1);font-family:inherit;font-size:1rem;line-height:1.1;cursor:pointer;text-align:center;transition:background 250ms ease-in-out,transform 150ms ease;-webkit-appearance:none;-moz-appearance:none;appearance:none;border-radius:var(--border-radius);box-shadow:inset 2px 2px 3px rgba(255,255,255,.3),inset -2px -2px 3px rgba(0,0,0,.3)}button:hover,input[type=button i]:hover,input[type=reset i]:hover,input[type=submit i]:hover{background-color:hsl(var(--info-hsl) / .5)}button:focus,input[type=button i]:focus,input[type=reset i]:focus,input[type=submit i]:focus{outline:1px solid var(--text4);outline-offset:-4px}button:active,input[type=button i]:active,input[type=reset i]:active,input[type=submit i]:active{transform:scale(.97)}button,input,select,textarea{font:inherit}blockquote{border:1px solid var(--text3);padding:.3rem;box-shadow:var(--shadow)}code{font-size:120%}main{padding-left:1rem;padding-right:1rem;max-width:64rem;margin-left:auto;margin-right:auto}table{border-collapse:collapse;border:1px solid var(--text3);margin-top:1rem;margin-bottom:1rem}thead td,thead th{color:var(--text2);font-weight:bolder;background:var(--surface4)}tfoot td,tfoot th{color:var(--text2);font-style:italic;background:var(--surface4)}tbody th,th[scope=row]{font-style:italic;color:var(--text2);font-weight:lighter;background:var(--surface4);background-blend-mode:lighten;text-align:left}td,th{padding:.5rem;border:1px solid var(--text4)}tbody tr:nth-child(even){color:var(--text2);background-color:var(--surface3);background-blend-mode:lighten}form{border:1px solid var(--text3);margin:.5rem;padding:.5rem;border-radius:var(--border-radius);display:flex;gap:1em;flex-direction:column}input[type=color]{width:100%;height:2.5rem}input:invalid,select:invalid,textarea:invalid{border:2px solid var(--failure)}form input,form select,form textarea{flex:2;border-radius:var(--border-radius);padding:.2rem;border:1px solid var(--text3)}form select{cursor:pointer;transition:background 250ms ease-in-out,transform 150ms ease;box-shadow:inset 1px 1px 2px rgba(255,255,255,.3),inset -1px -1px 2px rgba(0,0,0,.3);background-color:hsl(var(--brand-hue) calc(60% * var(--saturation)) calc(100% * var(--lightness)))}form button,form input[type=reset i],form input[type=submit i],input[type=button i]{width:auto;margin-left:.2em;margin-right:.2em}form input[type=checkbox i]{height:1.5em}form:invalid button{background-color:var(--warning)}form label{flex:1}form label[required]::after{content:" *"}form>div{display:inherit}form>label{align-self:center;text-transform:capitalize}form>label:focus-within{font-weight:700}@media screen and (max-width:600px){form,form *{display:block;width:100%}form>div.btn-row,form>label{margin-top:.8rem}form>:not(label){margin-bottom:.5rem}}.emoji{font-family:"Twemoji Mozilla","Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji","EmojiOne Color","Android Emoji",sans-serif}.noborder{border:none}.border{border:1px solid var(--text3);border-radius:var(--border-radius);padding:var(--border-pad);margin:var(--border-margin)}.box{border:1px solid var(--text3);border-radius:var(--border-radius);padding:.5rem}.box h2,.box h3,.box h4,.box h5,.box h6{margin-top:.5rem}.with-subtitle{margin-bottom:0}[role=doc-subtitle]{font-size:smaller;font-style:italic;margin-bottom:1em}.uppercase{text-transform:uppercase}.center,.centre{margin-left:auto;margin-right:auto;text-align:center}.animate-pulse{animation:pulse 2s cubic-bezier(.4,0,.6,1) infinite}@keyframes pulse{50%{opacity:.5}}.status-side-panel{border-radius:9999px;width:.5rem;height:100%;background-color:var(--surface1)}.text-smaller{font-size:smaller}.text-larger{font-size:larger}.compact{margin:0;padding-top:.2rem;padding-bottom:.2rem}button.compact{padding:2px 5px;border-radius:0;background:inherit;margin:2px}.toaster{position:absolute;top:0;left:0;min-width:100vw;min-height:100vh;-webkit-backdrop-filter:grayscale(60%) blur(10px);backdrop-filter:grayscale(60%) blur(10px);display:flex;flex-direction:column;justify-content:center;align-items:center;z-index:998}.toast{border:4px solid var(--text3);border-radius:var(--border-radius);box-shadow:var(--shadow2);background-clip:border-box;box-sizing:border-box;min-width:50vw;max-width:50vw;max-height:50vh;overflow-y:auto;padding:1em;margin-bottom:.5em;margin-top:.5em;z-index:999}.toast.alert{border:4px solid var(--text3);border-radius:var(--border-radius);box-shadow:var(--shadow2);background-clip:border-box;box-sizing:border-box;min-width:50vw;max-width:50vw;max-height:50vh;overflow-y:auto;padding:1em;margin-bottom:.5em;margin-top:.5em;z-index:999}.toast-head{font-weight:700}.status-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(14em,1fr));gap:.5rem;list-style-position:inside}.status-heading{grid-column:1/-1}.status-link{display:contents;color:inherit;text-decoration:none}.grid{display:grid;gap:.5rem}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.5rem}.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.5rem}.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:.5rem}.grid-fit{display:grid;gap:.5rem;grid-template-columns:repeat(auto-fit,minmax(min(var(--grid-fit-min),100%),1fr))}.flex{display:flex;gap:.5rem}.flex-wrap{display:flex;flex-wrap:wrap;gap:.5rem}#uib_last_msg_wrap{position:relative}#uib_last_msg_wrap>button{display:none;position:absolute;color:hsl(0,0%,50%,.5)}#uib_last_msg_wrap:hover>button{display:initial}#uib_last_msg_wrap>button:hover{color:#7f7f7f}.syntax-highlight{color:#fff;display:block;background-color:#000;padding:5px 10px;font-family:Consolas,ui-monospace,"Lucida Console",monospace;font-size:smaller;white-space:pre;width:99%;height:22em;overflow:auto;resize:both}.syntax-highlight>.key{color:#ffbf35}.syntax-highlight>.string{color:#5dff39}.syntax-highlight>.number{color:#70aeff}.syntax-highlight>.boolean{color:#b993ff}.syntax-highlight>.null{color:#93ffe4}.syntax-highlight>.undefined{color:#ff93c9}
\ No newline at end of file
+    );--secondary:var(--secondary-bg)}@media (prefers-color-scheme:light){:root{color-scheme:light dark;--mode:light}}@media (prefers-color-scheme:dark){:root{color-scheme:dark light;--mode:dark;--saturation-value:var(--dark-saturation);--lightness-value:var(--dark-lightness);--surface-shadow:var(--surface-shadow-dark);--shadow-strength:var(--shadow-strength-dark);--text-factor:var(--dark-text-factor);--text-lightness:var(--dark-text-lightness);--surfaces-factor:var(--dark-surfaces-factor);--surfaces-lightness:var(--dark-surfaces-lightness)}}:root.dark{color-scheme:dark light;--mode:dark;--saturation-value:var(--dark-saturation);--lightness-value:var(--dark-lightness);--surface-shadow:var(--surface-shadow-dark);--shadow-strength:var(--shadow-strength-dark);--text-factor:var(--dark-text-factor);--text-lightness:var(--dark-text-lightness);--surfaces-factor:var(--dark-surfaces-factor);--surfaces-lightness:var(--dark-surfaces-lightness)}.brand{color:var(--text1);background-color:var(--brand)}.complementary{color:var(--text1);background-color:var(--complementary)}.surface1{background-color:var(--surface1);color:var(--text2)}.surface2{background-color:var(--surface2);color:var(--text2)}.surface3{background-color:var(--surface3);color:var(--text1)}.surface4{background-color:var(--surface4);color:var(--text1)}.surface5{background-color:var(--surface5);color:var(--text1)}.rad-shadow{box-shadow:var(--shadow)}.info{color:var(--text1)!important;background-color:var(--info)!important}.info-intense{color:var(--text1)!important;background-color:var(--info-intense)!important}.success{color:var(--text1)!important;background-color:var(--success)!important}.success-intense{color:var(--text1)!important;background-color:var(--success-intense)!important}.warn,.warning{color:var(--text1)!important;background-color:var(--warning)!important}.warn-intense,.warning-intense{color:var(--text1)!important;background-color:var(--warning-intense)!important}.danger,.error,.failure{color:var(--text1)!important;background-color:var(--failure)!important}.danger-intense,.error-intense,.failure-intense{color:var(--text1)!important;background-color:var(--failure-intense)!important}.primary{color:var(--primary-fg);background-color:var(--primary-bg)}.secondary{color:var(--secondary-fg);background-color:var(--secondary-bg)}*{box-sizing:border-box}html{line-height:1.5;font-size:100%;background-color:var(--surface2);color:var(--text2);accent-color:var(--brand)}body{margin-left:var(--base-margin);margin-right:var(--base-margin);font-family:var(--font-family)}h1,h2,h3,h4,h5,h6,heading{line-height:1.3}canvas,img,picture,svg,video{object-fit:cover;vertical-align:bottom;max-width:100%;background-color:var(--surface2);margin:var(--base-margin)}blockquote,dl,dt,h1,h2,h3,h4,h5,h6,heading,li,p{overflow-wrap:break-word;-webkit-hyphens:auto;hyphens:auto;word-break:break-word}div>p{margin-left:var(--base-margin);margin-right:var(--base-margin)}button,input[type=button i],input[type=reset i],input[type=submit i]{align-items:center;justify-content:center;border:none;padding:.5rem 1rem;text-decoration:none;background-color:var(--info);color:var(--text1);font-family:inherit;font-size:1rem;line-height:1.1;cursor:pointer;text-align:center;transition:background 250ms ease-in-out,transform 150ms ease;-webkit-appearance:none;-moz-appearance:none;appearance:none;border-radius:var(--border-radius);box-shadow:inset 2px 2px 3px rgba(255,255,255,.3),inset -2px -2px 3px rgba(0,0,0,.3)}button:hover,input[type=button i]:hover,input[type=reset i]:hover,input[type=submit i]:hover{background-color:hsl(var(--info-hsl) / .5)}button:focus,input[type=button i]:focus,input[type=reset i]:focus,input[type=submit i]:focus{outline:1px solid var(--text4);outline-offset:-4px}button:active,input[type=button i]:active,input[type=reset i]:active,input[type=submit i]:active{transform:scale(.97)}button,input,select,textarea{font:inherit}blockquote{border:1px solid var(--text3);padding:.3rem;box-shadow:var(--shadow)}code{font-size:120%}main{padding-left:var(--base-margin);padding-right:var(--base-margin);max-width:64rem;margin-left:auto;margin-right:auto}table{border-collapse:collapse;border:1px solid var(--text3);margin-top:1rem;margin-bottom:1rem}thead td,thead th{color:var(--text2);font-weight:bolder;background:var(--surface4)}tfoot td,tfoot th{color:var(--text2);font-style:italic;background:var(--surface4)}tbody th,th[scope=row]{font-style:italic;color:var(--text2);font-weight:lighter;background:var(--surface4);background-blend-mode:lighten;text-align:left}td,th{padding:.5rem;border:1px solid var(--text4)}tbody tr:nth-child(even){color:var(--text2);background-color:var(--surface3);background-blend-mode:lighten}form{border:1px solid var(--text3);margin:.5rem;padding:.5rem;border-radius:var(--border-radius);display:flex;gap:1em;flex-direction:column}input[type=color]{width:100%;height:2.5rem}input:invalid,select:invalid,textarea:invalid{border:2px solid var(--failure)}form input,form select,form textarea{flex:2;border-radius:var(--border-radius);padding:.2rem;border:1px solid var(--text3)}form select{cursor:pointer;transition:background 250ms ease-in-out,transform 150ms ease;box-shadow:inset 1px 1px 2px rgba(255,255,255,.3),inset -1px -1px 2px rgba(0,0,0,.3);background-color:hsl(var(--brand-hue) calc(60% * var(--saturation)) calc(100% * var(--lightness)))}form button,form input[type=reset i],form input[type=submit i],input[type=button i]{width:auto;margin-left:.2em;margin-right:.2em}form input[type=checkbox i]{height:1.5em}form:invalid button{background-color:var(--warning)}form label{flex:1}form label[required]::after{content:" *"}form>div{display:inherit}form>label{align-self:center;text-transform:capitalize}form>label:focus-within{font-weight:700}@media screen and (max-width:600px){form,form *{display:block;width:100%}form>div.btn-row,form>label{margin-top:.8rem}form>:not(label){margin-bottom:.5rem}}.checklist{margin-inline-start:var(--base-margin);margin-inline-end:var(--base-margin);padding-inline-start:.2rem}li.check,li.completed{list-style-type:"✅";padding-left:.4rem}li.uncheck,li.unstarted{list-style-type:"❌";padding-left:.4rem}li.started{list-style-type:"✔️";padding-left:.4rem}.emoji{font-family:"Twemoji Mozilla","Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji","EmojiOne Color","Android Emoji",sans-serif}.noborder{border:none}.border{border:1px solid var(--text3);border-radius:var(--border-radius);padding:var(--border-pad);margin:var(--border-margin)}.box{border:1px solid var(--text3);border-radius:var(--border-radius);padding:.5rem}.box h2,.box h3,.box h4,.box h5,.box h6{margin-top:.5rem}.with-subtitle{margin-bottom:0}[role=doc-subtitle]{font-size:smaller;font-style:italic;margin-bottom:1em}.uppercase{text-transform:uppercase}.center,.centre{margin-left:auto;margin-right:auto;text-align:center}.animate-pulse{animation:pulse 2s cubic-bezier(.4,0,.6,1) infinite}@keyframes pulse{50%{opacity:.5}}.status-side-panel{border-radius:9999px;width:.5rem;height:100%;background-color:var(--surface1)}.text-smaller{font-size:smaller}.text-larger{font-size:larger}.compact{margin:0;padding-top:.2rem;padding-bottom:.2rem}button.compact{padding:2px 5px;border-radius:0;background:inherit;margin:2px}.toaster{position:absolute;top:0;left:0;min-width:100vw;min-height:100vh;-webkit-backdrop-filter:grayscale(60%) blur(10px);backdrop-filter:grayscale(60%) blur(10px);display:flex;flex-direction:column;justify-content:center;align-items:center;z-index:998}.toast{border:4px solid var(--text3);border-radius:var(--border-radius);box-shadow:var(--shadow2);background-clip:border-box;box-sizing:border-box;min-width:50vw;max-width:50vw;max-height:50vh;overflow-y:auto;padding:1em;margin-bottom:.5em;margin-top:.5em;z-index:999}.toast.alert{border:4px solid var(--text3);border-radius:var(--border-radius);box-shadow:var(--shadow2);background-clip:border-box;box-sizing:border-box;min-width:50vw;max-width:50vw;max-height:50vh;overflow-y:auto;padding:1em;margin-bottom:.5em;margin-top:.5em;z-index:999}.toast-head{font-weight:700}.status-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(14em,1fr));gap:.5rem;list-style-position:inside}.status-heading{grid-column:1/-1}.status-link{display:contents;color:inherit;text-decoration:none}.grid{display:grid;gap:.5rem}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.5rem}.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.5rem}.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:.5rem}.grid-fit{display:grid;gap:.5rem;grid-template-columns:repeat(auto-fit,minmax(min(var(--grid-fit-min),100%),1fr))}.flex{display:flex;gap:.5rem}.flex-wrap{display:flex;flex-wrap:wrap;gap:.5rem}#uib_last_msg_wrap{position:relative}#uib_last_msg_wrap>button{display:none;position:absolute;color:hsl(0,0%,50%,.5)}#uib_last_msg_wrap:hover>button{display:initial}#uib_last_msg_wrap>button:hover{color:#7f7f7f}.syntax-highlight{color:#fff;display:block;background-color:#000;padding:5px 10px;font-family:Consolas,ui-monospace,"Lucida Console",monospace;font-size:smaller;white-space:pre;width:99%;height:22em;overflow:auto;resize:both}.syntax-highlight>.key{color:#ffbf35}.syntax-highlight>.string{color:#5dff39}.syntax-highlight>.number{color:#70aeff}.syntax-highlight>.boolean{color:#b993ff}.syntax-highlight>.null{color:#93ffe4}.syntax-highlight>.undefined{color:#ff93c9}
\ No newline at end of file

From b2760dd055d99daeaacefe719c477eb641b9398b Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Fri, 29 Dec 2023 13:27:30 +0000
Subject: [PATCH 47/78] Initial room processing added. NOTE: Includes some test
 code. Auto-join clientId and pageName rooms.

---
 nodes/libs/socket.js | 83 ++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 76 insertions(+), 7 deletions(-)

diff --git a/nodes/libs/socket.js b/nodes/libs/socket.js
index cb48a007..00b564ce 100644
--- a/nodes/libs/socket.js
+++ b/nodes/libs/socket.js
@@ -132,7 +132,6 @@ class UibSockets {
         this.ioNamespaces = {}
 
         //#endregion ---- ---- //
-
     } // --- End of constructor() --- //
 
     /** Assign uibuilder and Node-RED core vars to Class static vars.
@@ -183,7 +182,6 @@ class UibSockets {
         }
 
         this._isConfigured = true
-
     } // --- End of setup() --- //
 
     /**  Holder for Socket.IO - we want this to survive redeployments of each node instance
@@ -243,7 +241,6 @@ class UibSockets {
 
         // @ts-ignore ts(2769)
         this.io = new socketio.Server(server, ioOptions) // listen === attach
-
     } // --- End of socketIoSetup() --- //
 
     /** Allow the isConfigured flag to be read (not written) externally
@@ -442,7 +439,6 @@ class UibSockets {
         // Send out the message for downstream flows
         // TODO: This should probably have safety validations!
         this.sendIt(msg, node)
-
     } // ---- End of listenFromClient ---- //
 
     /** Add a new Socket.IO NAMESPACE
@@ -494,8 +490,56 @@ class UibSockets {
             }
         }
 
+        //#region -- trace room events --
+        // NB: Only sockets can join rooms, not the server
+        { // eslint-disable-line no-lone-blocks
+            const thislog = log.trace
+            // const thislog = console.log
+            ioNs.adapter.on('create-room', (room) => {
+                thislog(
+                    `[uibuilder:socket:addNS:${url}] Room "${room}" was created`
+                )
+            })
+            ioNs.adapter.on('delete-room', (room) => {
+                thislog(
+                    `[uibuilder:socket:addNS:${url}] Room "${room}" was deleted`
+                )
+            })
+            ioNs.adapter.on('join-room', (room, id) => {
+                thislog(
+                    `[uibuilder:socket:addNS:${url}] Socket ID "${id}" has joined room "${room}"`
+                )
+            })
+            ioNs.adapter.on('leave-room', (room, id) => {
+                thislog(
+                    `[uibuilder:socket:addNS:${url}] Socket ID "${id}" has left room "${room}"`
+                )
+            })
+        }
+        //#endregion -- -- --
+
+        // ! TODO TEST REMOVE
+        if (url === 'uib-router-eg') {
+            setInterval(() => {
+                // console.log(`ping uibuilder:fred. NS: ${url}`, '\n SIDS: ', ioNs.adapter.sids, '\n ROOMS: ', ioNs.adapter.rooms)
+                ioNs.to('uibuilder:fred').emit('uibuilder:fred', `Hello from the server. NS: "${url}"`)
+            }, 60000)
+            setInterval(() => {
+                // console.log(`ping uibuilder:fred. NS: ${url}`, '\n SIDS: ', ioNs.adapter.sids, '\n ROOMS: ', ioNs.adapter.rooms)
+                this.io.of('/').emit('uibuilder:global', 'Hello from the server. NS: "/"')
+            }, 60000)
+            // ioNs.join('uibuilder:fred')
+            ioNs.on('uibuilder:fred', (room, msg) => {
+                console.log('uibuilder:fred', room, msg)
+            })
+            this.io.on('uibuilder:fred', (room, msg) => {
+                console.log('[this.io] uibuilder:fred', room, msg)
+            })
+        }
+
         const that = this
 
+        // When a client connects to the server
         ioNs.on('connection', (socket) => {
 
             //#region ----- Event Handlers ----- //
@@ -578,6 +622,27 @@ class UibSockets {
                 that.sendCtrlMsg(ctrlMsg, node)
             }) // --- End of on-connection::on-error() --- //
 
+            // Custom room handling (clientId & pageId rooms are always joined)
+            // - NB: Clients don't understand rooms, they simply receive
+            //       all messages send to all joined rooms.
+            //       Messages have to include room name if need to differentiate at client.
+            //       Server cannot listen to rooms but can send
+            // To send to a custom room from server: ioNs.to("project:4321").emit("project updated")
+
+            // Allow client to request to create/join a room
+            socket.on('uib-room-join', (room) => {
+                socket.join(room)
+            })
+            // Allow clients to request to leave a room
+            socket.on('uib-room-leave', (room) => {
+                socket.leave(room)
+            })
+            // Allow clients to send message to a custom room
+            socket.on('uib-room-send', (room, msg) => {
+                console.log('uib-room-send', { room, msg })
+                ioNs.to(room).emit(room, msg, socket.handshake.auth)
+                // TODO Option to send on as a node-red msg
+            })
             //#endregion ----- Event Handlers ----- //
 
             //#region ---- run when client connects ---- //
@@ -649,8 +714,14 @@ class UibSockets {
 
             //#endregion ---- run when client connects ---- //
 
+            //#region ---- Rooms ----
+            // console.log('socket auth: ', socket.handshake.auth)
+            socket.join(`clientId:${socket.handshake.auth.clientId}`)
+            socket.join(`pageName:${socket.handshake.auth.pageName}`)
+            // Not bothering with a tabId room - gets filtered at client anyway
+            // rooms for pathName not needed as each path has own namespace
+            //#endregion ---- ---- ----
         }) // --- End of on-connection() --- //
-
     } // --- End of addNS() --- //
 
     /** Remove the current clients and namespace for this node.
@@ -667,9 +738,7 @@ class UibSockets {
         ioNs.removeAllListeners() // Remove all Listeners for the event emitter
 
         // No longer works from socket.io v3+ //delete this.io.nsps[`/${node.url}`] // Remove from the server namespaces
-
     } // --- End of removeNS() --- //
-
 } // ==== End of UibSockets Class Definition ==== //
 
 /** Singleton model. Only 1 instance of UibSockets should ever exist.

From dae803041d46555f433a99c3e238c5966e236b77 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Fri, 29 Dec 2023 13:28:46 +0000
Subject: [PATCH 48/78] NEW: User-facing API library. Only test code in this
 commit.

---
 nodes/libs/user-apis.js | 197 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 197 insertions(+)
 create mode 100644 nodes/libs/user-apis.js

diff --git a/nodes/libs/user-apis.js b/nodes/libs/user-apis.js
new file mode 100644
index 00000000..6847b3ee
--- /dev/null
+++ b/nodes/libs/user-apis.js
@@ -0,0 +1,197 @@
+/** User-facing API ExpressJS Router Handler
+ *
+ * See: https://expressjs.com/en/4x/api.html#router, https://expressjs.com/en/guide/routing.html
+ *
+ * Copyright (c) 2023-2023 Julian Knight (Totally Information)
+ * https://it.knightnet.org.uk, https://github.com/TotallyInformation/node-red-contrib-uibuilder
+ *
+ * Licensed under the Apache License, Version 2.0 (the 'License');
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an 'AS IS' BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+'use strict'
+
+/** --- Type Defs ---
+ * @typedef {import('../../typedefs.js').uibConfig} uibConfig
+ */
+
+const express = require('express')
+// const path = require('path')
+// const fs = require('fs-extra')  // https://github.com/jprichardson/node-fs-extra#nodejs-fs-extra
+// const fg = require('fast-glob') // https://github.com/mrmlnc/fast-glob
+// const uiblib = require('./uiblib')  // Utility library for uibuilder
+// const web = require('./web')
+// const sockets = require('./socket')
+// const packageMgt = require('./package-mgt')
+// const templateConf  = require('../../templates/template_dependencies') // Template configuration metadata
+
+const UserRouter = express.Router({ mergeParams: true }) // eslint-disable-line new-cap
+
+const errUibRootFldr = new Error('uib.rootFolder is null')
+
+const config = {}
+
+// ! NEEDED?
+//#region === REST API Validation functions === //
+
+/** Validate url query parameter
+ * @param {object} params The GET (res.query) or POST (res.body) parameters
+ * @param {string} params.url The uibuilder url to check
+ * @returns {{statusMessage: string, status: number}} Status message
+ */
+function chkParamUrl(params) {
+    const res = { 'statusMessage': '', 'status': 0 }
+
+    // We have to have a url to work with - the url defines the start folder
+    if ( params.url === undefined ) {
+        res.statusMessage = 'url parameter not provided'
+        res.status = 500
+        return res
+    }
+
+    // Trim the url
+    params.url = params.url.trim()
+
+    // URL must not exceed 20 characters
+    if ( params.url.length > 20 ) {
+        res.statusMessage = `url parameter is too long. Max 20 characters: ${params.url}`
+        res.status = 500
+        return res
+    }
+
+    // URL must be more than 0 characters
+    if ( params.url.length < 1 ) {
+        res.statusMessage = 'url parameter is empty, please provide a value'
+        res.status = 500
+        return res
+    }
+
+    // URL cannot contain .. to prevent escaping sub-folder structure
+    if ( params.url.includes('..') ) {
+        res.statusMessage = `url parameter may not contain "..": ${params.url}`
+        res.status = 500
+        return res
+    }
+
+    // Actually, since uib auto-creates folder if not exists, this just gets in the way - // Does this url have a matching instance root folder?
+    // if ( ! fs.existsSync(path.join(uib.rootFolder, params.url)) ) {
+    //     res.statusMessage = `url does not have a matching instance root folder. url='${params.url}', Master root folder='${uib.rootFolder}'`
+    //     res.status = 500
+    //     return res
+    // }
+
+    return res
+} // ---- End of fn chkParamUrl ---- //
+
+/** Validate fname (filename) query parameter
+ * @param {object} params The GET (res.query) or POST (res.body) parameters
+ * @param {string} params.fname The uibuilder url to check
+ * @returns {{statusMessage: string, status: number}} Status message
+ */
+function chkParamFname(params) {
+    const res = { 'statusMessage': '', 'status': 0 }
+    const fname = params.fname
+
+    // We have to have an fname (file name) to work with
+    if ( fname === undefined ) {
+        res.statusMessage = 'file name not provided'
+        res.status = 500
+        return res
+    }
+    // Blank file name probably means no files available so we will ignore
+    if ( fname === '' ) {
+        res.statusMessage = 'file name cannot be blank'
+        res.status = 500
+        return res
+    }
+    // fname must not exceed 255 characters
+    if ( fname.length > 255 ) {
+        res.statusMessage = `file name is too long. Max 255 characters: ${params.fname}`
+        res.status = 500
+        return res
+    }
+    // fname cannot contain .. to prevent escaping sub-folder structure
+    if ( fname.includes('..') ) {
+        res.statusMessage = `file name may not contain "..": ${params.fname}`
+        res.status = 500
+        return res
+    }
+
+    return res
+} // ---- End of fn chkParamFname ---- //
+
+/** Validate folder query parameter
+ * @param {object} params The GET (res.query) or POST (res.body) parameters
+ * @param {string} params.folder The uibuilder url to check
+ * @returns {{statusMessage: string, status: number}} Status message
+ */
+function chkParamFldr(params) {
+    const res = { 'statusMessage': '', 'status': 0 }
+    const folder = params.folder
+
+    // we have to have a folder name
+    if ( folder === undefined ) {
+        res.statusMessage = 'folder name not provided'
+        res.status = 500
+        return res
+    }
+    // folder name must be >0 in length
+    if ( folder === '' ) {
+        res.statusMessage = 'folder name cannot be blank'
+        res.status = 500
+        return res
+    }
+    // folder name must not exceed 255 characters
+    if ( folder.length > 255 ) {
+        res.statusMessage = `folder name is too long. Max 255 characters: ${folder}`
+        res.status = 500
+        return res
+    }
+    // folder name cannot contain .. to prevent escaping sub-folder structure
+    if ( folder.includes('..') ) {
+        res.statusMessage = `folder name may not contain "..": ${folder}`
+        res.status = 500
+        return res
+    }
+
+    return res
+} // ---- End of fn chkParamFldr ---- //
+
+//#endregion === End of API validation functions === //
+
+/** Return a router but allow parameters to be passed in
+ * @param {uibConfig} uib Reference to uibuilder's master uib object
+ * @param {*} log Reference to uibuilder's log functions
+ * @returns {express.Router} The v3 admin API ExpressJS router
+ */
+function userRouter(uib, log) {
+    if (config.setup === true) throw new Error('userRoute setup already called')
+    config.setup = true
+    config.uib = uib
+    config.log = log
+
+    /** uibuilder v3 unified Admin API router - new API commands should be added here
+     * Typical URL is: http://127.0.0.1:1880/uibuilder/api/xxxxx
+     */
+    UserRouter.get('/test', function(/** @type {express.Request} */ req, /** @type {express.Response} */ res) {
+        console.log(' TEST API', {uib})
+        res.statusMessage = 'Instances listed'
+        res.status(200).json( uib.instances )
+    })
+
+    /** see https://expressjs.com/en/4x/api.html#app.METHOD for methods */
+
+    return UserRouter
+}
+
+module.exports = userRouter
+
+// EOF

From 44eae29a688fad078eff1c3154897270e7004538 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Fri, 29 Dec 2023 13:31:02 +0000
Subject: [PATCH 49/78] Add initial user api test routes. Sort apps list on
 details page. Fix error if req.headers.referer doesn't exist.

---
 nodes/libs/web.js | 46 ++++++++++++++++++++++++++++++++--------------
 1 file changed, 32 insertions(+), 14 deletions(-)

diff --git a/nodes/libs/web.js b/nodes/libs/web.js
index b48ae81b..8f2abef9 100644
--- a/nodes/libs/web.js
+++ b/nodes/libs/web.js
@@ -32,8 +32,9 @@
 const { join, dirname, parse } = require('path')
 const serveIndex = require('serve-index')
 const express = require('express')
-const { getNs } = require('./socket.js')
-const { getClientId } = require('./uiblib')
+const socketjs = require('./socket.js')
+// const { getNs } = require('./socket.js') // NO! This gives an error because of incorrect `this` binding
+const { getClientId, sortApps } = require('./uiblib')
 const { accessSync, existsSync, mkdirSync, fgSync } = require('./fs.js')
 const { mylog, urlJoin } = require('./tilib') // dumpReq, mylog
 // WARNING: Don't try to deconstruct this, if you do the initial uibPackageJson access fails for some reason
@@ -175,6 +176,23 @@ class UibWeb {
         this.RED.httpAdmin.use('/uibuilder', this.adminRouter, this.adminRouterV2)
     }
 
+    /** Add routes for master user-facing APIs */
+    _userApiSetup() {
+        if ( this.#isConfigured !== true ) {
+            this.log.warn('[uibuilder:web.js:_userApiSetup] Cannot run. Setup has not been called.')
+            return
+        }
+        if (!this.uibRouter) throw new Error('this.uibRouter is undefined')
+
+        /** Serve up the v3 admin apis on /<httpAdminRoot>/uibuilder/admin/ */
+        this.userApiRouter = require('./user-apis')(this.uib, this.log)
+        this.userApiRouter.myname = 'uibUserApiRouter'
+        this.uibRouter.use('/api', this.userApiRouter)
+        this.routers.admin.push( { name: 'User-facing APIs', path: `${this.uib.httpRoot}/uibuilder/api/*`, desc: 'User-facing APIs accessible to any valid user', type: 'Router' } )
+
+        this.log.trace(`[uibuilder:web:serveVendorPackages] Vendor Router created at '${this.uib.httpRoot}/uibuilder/vendor/*.`)
+    }
+
     /** Set up the appropriate ExpressJS web server references
      * @protected
      */
@@ -315,8 +333,7 @@ class UibWeb {
         this.app.use( urlJoin(uib.moduleName), this.uibRouter )
     } // --- End of webSetup() --- //
 
-    // TODO Add instance title & description to uibuilder node.
-    /** Return a dynamic index page of all uibuilder user-accessible endpoints
+    /** Return a dynamic index page of all uibuilder user-accessible endpoints on /uibuilder/apps
      * param {express.Request} req Express request object
      * param {express.Response} res Express response object
      * param {Function} next Function to pass to next handler
@@ -345,7 +362,7 @@ class UibWeb {
             if ( Object.keys(this.uib.instances).length === 0 ) {
                 page += '<p>Instance list not yet ready, please try again</p>'
             } else {
-                for (let [url, data] of Object.entries(this.uib.apps)) { // eslint-disable-line prefer-const
+                for ( let [url, data] of sortApps(Object.entries(this.uib.apps)) ) { // eslint-disable-line prefer-const
                     const title = data.title.length === 0 ? '' : `: ${data.title}`
                     const descr = data.descr.length === 0 ? '' : `<div>${data.descr}</div>`
                     page += `
@@ -361,15 +378,15 @@ class UibWeb {
                 </div></body></html>
             `
 
-            res.statusMessage = 'Instances listed'
+            res.statusMessage = 'Apps listed'
             res.status(200).send( page )
         })
 
         // Record this endpoint for use on details page
         this.routers.user.push( {
-            name: 'Endpoints',
-            path: `${this.uib.httpRoot}/uibuilder/endpoints`,
-            desc: 'List of all uibuilder endpoints',
+            name: 'Apps (Instances)',
+            path: `${this.uib.httpRoot}/uibuilder/apps`,
+            desc: 'List of all uibuilder apps (instances)',
             type: 'Get',
             // folder: uib.commonFolder
         } )
@@ -904,8 +921,11 @@ class UibWeb {
         let page = ''
 
         // If using own Express server, correct the URL's
-        if (!req.headers.referer) throw new Error('req.headers.referer does not exist')
-        const url = new URL(req.headers.referer)
+        // if (!req.headers.referer) throw new Error('req.headers.referer does not exist')
+        let url = {}
+        try {
+            url = new URL(req.headers.referer)
+        } catch (error) { }
         url.pathname = ''
         // @ts-expect-error
         if (uib.customServer && uib.customServer.port && uib.customServer.port != RED.settings.uiPort ) { // eslint-disable-line eqeqeq
@@ -925,10 +945,8 @@ class UibWeb {
             'sessionLength', 'tokenAutoExtend', 'customFolder',
             'ioClientsCount', 'rcvMsgCount', 'ioNamespace'
         ]
-        // functions: ['_closeCallbacks', '_inputCallback', '_inputCallbacks', 'send', ]
-        // Keep secret: ['jwtSecret', ]
 
-        const ns = getNs(node.url)
+        const ns = socketjs.getNs(node.url)
 
         page += `
             <!doctype html><html lang="en"><head>

From 7df93a8722e87364f842d44902e7ce4dc0ca2982 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Fri, 29 Dec 2023 13:32:54 +0000
Subject: [PATCH 50/78] Sort section entries

---
 docs/-sidebar.md | 46 +++++++++++++++++++++++-----------------------
 1 file changed, 23 insertions(+), 23 deletions(-)

diff --git a/docs/-sidebar.md b/docs/-sidebar.md
index 39acc38b..5eda6b3e 100644
--- a/docs/-sidebar.md
+++ b/docs/-sidebar.md
@@ -1,14 +1,14 @@
 * [Home](/)
 * Using <span class="uib-name"><span class="uib-red">ui</span>builder</span>
   * [A first-timers walkthough](walkthrough1.md "Let's get started!")
-  * [Did you know?](did-you-know.md "Things you might not know about UIBUILDER")
-  * [Creating data-driven web apps](web-app-workflow.md "Different styles and workflows you can use")
+  * [Browser auto-refresh](browser-refresh.md "Automatically reload your page after a change")
   * [Configuring <span class="uib-name"><span class="uib-red">ui</span>builder</span>](uib-configuration.md "Configure the UIBUILDER platform. Affects all uibuilder nodes")
-  * [Standard messages](pre-defined-msgs.md "Catalogue of messages and properties")
+  * [Creating data-driven web apps](web-app-workflow.md "Different styles and workflows you can use")
   * [Creating Templates](creating-templates "Pre-defined and reusable front-end code, dependencies, and optional build steps")
-  * [Browser auto-refresh](browser-refresh.md "Automatically reload your page after a change")
-  * [Zero-code UI creation](using/zero-code-ui.md "Dynamically creating web UI's")
+  * [Did you know?](did-you-know.md "Things you might not know about UIBUILDER")
+  * [Standard messages](pre-defined-msgs.md "Catalogue of messages and properties")
   * [Why <span class="uib-name"><span class="uib-red">ui</span>builder</span>?](using/why-uibuilder.md "Why would I want to use UIBUILDER?")
+  * [Zero-code UI creation](using/zero-code-ui.md "Dynamically creating web UI's")
 * [The nodes](nodes/README.md)
   * [`uib-cache`](nodes/uib-cache.md "Cache data so that (re)loaded pages get the latest")
   * [`uib-element`](nodes/uib-element.md "no-code creation of page elements")
@@ -19,46 +19,46 @@
   * [`uib-update`](nodes/uib-update.md "no-code update of any existing HTML page element")
   * [`uibuilder`](nodes/uibuilder.md "The main node")
 * The front-end client
-  * [Introduction](client-docs/readme.md)
-  * [Features](client-docs/features.md)
   * [Controlling from Node-RED](client-docs/control-from-node-red.md)
+  * [Custom Components](client-docs/custom-components.md "The built-in uib-var component, using external components")
+  * [Custom Events](client-docs/custom-events.md)
   * [Dynamic, config-driven UI's](client-docs/config-driven-ui.md)
+  * [Features](client-docs/features.md)
   * [Functions](client-docs/functions.md)
-  * [Variables](client-docs/variables.md)
-  * [Custom Components](client-docs/custom-components.md "The built-in uib-var component, using external components")
+  * [Introduction](client-docs/readme.md)
   * [Routing Library](client-docs/fe-router.md "A full-featured front-end router for Single Page Apps and other use")
-  * [Custom Events](client-docs/custom-events.md)
-  * [uib-brand Style Sheet](client-docs/uib-brand-css.md "How to use the UIBUILDER standard style sheet uib-brand.css")
   * [Troubleshooting](client-docs/troubleshooting.md)
+  * [uib-brand Style Sheet](client-docs/uib-brand-css.md "How to use the UIBUILDER standard style sheet uib-brand.css")
+  * [Variables](client-docs/variables.md)
   * [Old uibuilderfe client library](front-end-library.md)
 * Zero-code element types
-  * [Tables](elements/tables.md)
   * [Forms](elements/forms.md)
-  * [Lists](elements/lists.md)
+  * [Headings, text boxes, etc.](elements/other.md)
   * [HTML](elements/html.md)
+  * [Lists](elements/lists.md)
   * [Markdown](elements/Markdown.md)
-  * [Headings, text boxes, etc.](elements/other.md)
+  * [Tables](elements/tables.md)
 * UI frameworks & builds
-  * [VueJS complexities](vue-complexities.md)
-  * [VueJS components](vue-component-handling.md)
-  * [Svelte](svelte.md)
   * [Avoiding a build step](front-end-no-build.md)
   * [Optimise & transpile (build)](front-end-builds.md)
   * [Snowpack as build tool](front-end-build-snowpack.md)
+  * [Svelte](svelte.md)
+  * [VueJS complexities](vue-complexities.md)
+  * [VueJS components](vue-component-handling.md)
 * How to
-  * [Use Fn nodes to change msg._ui](how-to/function-node.md)
-  * [How & why to use the list node](how-to/list-node.md)
-  * [Use the cache node](how-to/cache-node.md)
-  * [CSS Selectors](how-to/css-selectors.md)
   * [Change the root folder (uibRoot)](how-to/changing-uibroot.md)
   * [Create instance-specific API's](how-to/instance-apis.md)
+  * [CSS Selectors](how-to/css-selectors.md)
+  * [How & why to use the list node](how-to/list-node.md)
   * [How & why to use the sender node](how-to/sender-node.md)
   * [How to use low-code in the browser](how-to/use-low-code-in-fe.md "Define and update elements in the browser using low-code")
   * [Other How-To's](how-to/README.md)
+  * [Use Fn nodes to change msg._ui](how-to/function-node.md)
+  * [Use the cache node](how-to/cache-node.md)
 * Security
-  * [Securing uib web apps](security/security.md "Overview of general web app security with some specifics for Node-RED and UIBUILDER")
-  * [Securing Data](security/securing-data.md "How to use flows and uibiulder middleware to secure your data")
   * [Securing apps using NGINX](security/uib-security-nginx.md "How to use NGINX as a reverse proxy with TLS and identity authentication")
+  * [Securing Data](security/securing-data.md "How to use flows and uibiulder middleware to secure your data")
+  * [Securing uib web apps](security/security.md "Overview of general web app security with some specifics for Node-RED and UIBUILDER")
 * [Developer documentation](dev/README.md)
 * [REST API's](apis/)
 * [Glossary of terms](glossary.md)

From 6d63eeaf587f3530433d1bfde245280591b379c3 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Fri, 29 Dec 2023 13:33:25 +0000
Subject: [PATCH 51/78] Updates

---
 CHANGELOG.md                          |  98 +++++++++++++++++-
 docs/client-docs/custom-components.md | 108 ++++++++++++++++++--
 docs/client-docs/functions.md         | 137 ++++++++++++++------------
 docs/client-docs/image.png            | Bin 0 -> 47521 bytes
 docs/client-docs/uib-brand-css.md     |  14 +--
 docs/dev/README.md                    |   7 ++
 docs/dev/editor-libs/readme.md        |  12 +++
 docs/dev/editor-libs/ti-common-css.md |  39 ++++++++
 docs/dev/editor-libs/ti-common.md     |  60 +++++++++++
 docs/dev/server-libs/uiblib.md        |   5 +-
 docs/roadmap.md                       |  13 ++-
 11 files changed, 408 insertions(+), 85 deletions(-)
 create mode 100644 docs/client-docs/image.png
 create mode 100644 docs/dev/editor-libs/readme.md
 create mode 100644 docs/dev/editor-libs/ti-common-css.md
 create mode 100644 docs/dev/editor-libs/ti-common.md

diff --git a/CHANGELOG.md b/CHANGELOG.md
index db121743..cf51e20c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,15 +8,87 @@ Please see the documentation for archived changelogs - a new archive is produced
 
 ## To Fix
 
-* `uib-save` import - initial deployment does not connect to node - need to clear the entry
+* uib router - if no routerConfig.defaultRoute set, use the first (zeroth) defined route.
+* `uib-save` import - initial deployment does not connect to node - need to clear the entry & mark as invalid. Also, no url = invalid
+* To reproduce: [ref](https://discourse.nodered.org/t/uibuilder-new-release-v6-7-new-front-end-router-improvements-to-uib-html-uib-save-and-more/83106/4)
+
+  Pull a uibuilder node in a flow.
+  Press Deploy.
+  The editor complains that the node just dropped isn't configured correctly. Deploy anyway.
+  Open the property editor of the uibuilder node, enter a valid URL ( like uibtest), close the property pane with Done.
+  First observation: The uibuilder node still shows the red triangle - despite correctly configured now.
+  Press Deploy.
+  The editor complains that the node still isn't configured correctly. Deploy anyway.
+  Second observation: The uibuilder node still shows the red triangle - which is definitely unexpected now. Node status displays "Node Initialised" @ blue.
+
+* Looks like it's validateVersion that triggers this red triangle.. [ref](https://discourse.nodered.org/t/uibuilder-new-release-v6-7-new-front-end-router-improvements-to-uib-html-uib-save-and-more/83106/7?u=totallyinformation)
+
+## Started
+
+* Socket.IO rooms. [ref](https://socket.io/docs/v4/rooms/) - Rooms can be used to filter messages for specific destinations (e.g. client or page id) or to create client-to-client comms.
+  * Need a way to join rooms from Node-RED
+  * socket.js
+    * [x] Auto-join `clientId:xxxxxxx` & `pageName:xxxxxxx` rooms
+    * [x] socket.on uib-room-join/-leave-send
+    * [ ] Change send functions to use rooms where clientId/pageName is specified in `msg._uib`
+    * [ ] `socket.on('uib-room-send', ...)` Add option to also send a uibuilder msg.
+    * [ ] Incorporate `msg._uib.roomId` for sending to custom rooms
+    * [ ] ? Allow sending to different uib namespaces? would likely need an option flag for security?
+    * [ ] ? Allow global as well as NS rooms? - allow sending between different uib connected clients? may req client to connect to the default NS as well. 
+          [ref](https://socket.io/docs/v4/socket-io-protocol/#introduction)
+    * [ ] Line 525 - remove test code
+    * [ ] Remove console.log from addNs
+  * client
+    * [x] joinRoom, leaveRoom, sendRoom
+    * [ ] Add listener when joining a room, remove when leaving
+    * [x] Add additional listener for the default namespace
+    * [ ] Document new managed var: `globalMsg`.
+
+* `uib-var`
+  * Add filter attribute. A filter is a JavaScript function accessible from `window` global or `uibuilder` contexts. The filter is applied to the variable value before display.
+    * [x] Apply args
+    * [x] filter the input - at least limit the length of the attr (limited to 126 chars)
+    * Test filters with
+      * [x] `uibuilder.xxxxx`
+      * [x] `mything.myfunc`
+      * [x] `mything.myfunc(1,2,3)`
+      * [x] `mything.myfunc()`
+    * [x] Test filters with arguments
+    * [x] Test passing another global var as an argument
+    * [ ] Test different order of uib-var attributes
+    * [x] Document changes
+  * [x] Add `topic` attribute - automatically listens for msgs with given topic and updates.
 
 ## To Do
 
+* uib-router
+  * For convenience, add current route details and curr/prev route id to data when route changes.
+  * Add 1st show marker to route change to allow client to ask for cache update
+  * Update docs to allow for description and other props on route array.
+  * if no routerConfig.defaultRoute set, use the first (zeroth) defined route.
+  * Add preload option so that updates to ui can happen before display.
+  * Document standards for navigation menus.
+  * Add optional nav menu list css selector (css class) allowing auto-mark of current page & add `aria-current="page"`
+
+* uibuilder node
+  * Add manual entry field to editor config for a URL scheme to open the instanceRoot folder in an editor new window. Pre-fill with vscode entry for localhost. Partially fill with vscode-remote otherwise (or maybe have a button).
+
+* uibuilder fe
+  * Add `formateDate` standard utility fn. [ref](https://discourse.nodered.org/t/format-date-at-yyyydd-hh-mm-ss/83130/12?u=totallyinformation)
+
+* Consider special variable `managedTags`? where each entry update will automatically update the matching element ID and if the element doesn't yet exist, will watch for it and update as soon as it is added.
+
 * update the `remote-commands` example
+* Add/update the `text updates` example
 * Add new low-code example
 * Update docs for ctrl msgs and msg._uib return data to say that anything set via the socket.io auth can only update when the client reconnects. Also document clientTimeDifference
 * Fixup CSS for showDialog (notifications/alerts) - left/right margin on p and svg need removing. Maybe on toast-head class too. Parent class is "toast".
 * Add client msg filter for URL Hash.
+* Incorporate ideas from: https://www.htmhell.dev/adventcalendar/2023/2/
+* Add uibuilder.tag()
+* Add example save current page to file
+
+* ??? uib.setAttr(selector, attr, val)? 
 
 * More flexible low-code class attribute handling.
   * In ui.js
@@ -41,11 +113,13 @@ Please see the documentation for archived changelogs - a new archive is produced
 
 ### Highlights
 
-* New `navigate` function and command. Triggers a page change or a route change either from front-end JavaScript or via a command message in Node-RED.
+* New `navigate` function and command. Triggers a page change or a route change either from front-end JavaScript or via a command message in Node-RED. Put a client into Kiosk mode and rotate pages or route displays all from Node-RED!
 * New `scrollTo` function and command. Scrolls the visible page to a specific location either from front-end JavaScript or via a command message in Node-RED.
 * No-code and low-code features now all allow more flexible class handling (add, remove, and replace using lists). HTML element data outputs also now return an array of class names, not just a combined string.
 * Front-end commands issued from Node-RED can now take a `quiet` option set to `true` to prevent the return message. e.g. `{"_uib": {"command":"navigate","prop":"#newroute","quiet":true}}`
 * Front-end developers now have full access to the `ui.js` library via the `$ui` global.
+* `addClass(classNames, el)` and `removeClass(classNames, el)` UI functions added to the client library
+* `connect()` and `disconnect()` functions added to the client library to manually connect/disconnect the Socket.IO connections
 
 ### `uibrouter`
 
@@ -58,6 +132,7 @@ Please see the documentation for archived changelogs - a new archive is produced
 ### `uib-save`
 
 * **FIXED** usePageName logic.
+* URL (uibuilder instance) drop-down list is now sorted
 
 ### Client library
 
@@ -68,14 +143,25 @@ Please see the documentation for archived changelogs - a new archive is produced
 * **NEW ui functions** - `addClass(classNames, el)`, `removeClass(classNames, el)` - see `ui.js` below for details.
 
 * **NEW Function and Command** - `navigate(url)` - Load a new web page or change routes. Can be triggered from Node-RED with msg `{"_uib": {"command":"navigate","prop":"#newroute"}}`. See [Client Functions (navigate) in the docs](client-docs/functions#navigate) for details. URL's can be full, relative (to the current page) or routing (hashes). Obviously, can be called in front-end JavaScript as well as `uibuilder.navigate('./page2.html')` etc.
+
 * **NEW Function and Command** - `scrollTo(cssSelector)` - Scroll visible page to an element based on a CSS Selector. See [Client Functions (scrollTo) in the docs](client-docs/functions#scrollTo) for details. `top`, `start`, `bottom`, `end` can be used as shortcuts for the top/bottom of the page. An optional 2nd parameter gives more control.
 
+* **NEW Functions** - `connect()`, `disconnect()` - These manually connect and disconnect the Socket.IO communications between the browser and Node-RED.
+
 * Added `quiet` property to remote command processing. Set `msg._uib.quiet` to `true` to stop the library returning a message to Node-RED on completion of the command.
 * When using `uiGet` or `nodeGet` functions/commands, if class attribute is present, an additional `classes` property is returned which is an array of the class names.
 
 * **DEPRECATED Function** - `elementIsVisible` - Was not working correctly and a fix is complex. Will revisit in the future. Let me know if you need this function. This would normally be a breaking change but the function is still there - it returns a console msg and a node-red msg still - and as it wasn't working, I doubt anyone has used it.
 * Moved  `$` and `$$` functions to `ui.js` library. This library references them. So no change to usage.
 
+### `uib-var` custom web component
+
+* Auto load `./index.css` instead of `../uibuilder/uib-brand.min.css` - enables your own custom styling to be used. Not dependent on UIBUILDER, simply serve `index.css` from the same location as your main page.
+* Added `topic` attribute - auto-monitors for messages from Node-RED with the given topic. `msg.payload` contains the value to show. Applies filter if present. Just send a msg from Node-RED with the appropriate topic and the display will automatically update! (requires UIBUILDER)
+* Can now supply ONLY the `filter` attribute (without `variable` or `topic`). This allows arbitrarily complex processing.
+* If using UIBUILDER, the resulting HTML output is sanitised if you have the DOMPurify library loaded. If the output is a JavaScript object, it will be highlighted using uibuilder's standard JSON highlighter.
+* Improved error handling, especially for the `filter` attribute and its processing.
+
 ### `ui.js` low-code->HTML hydration library
 
 * **NEW functions** - `addClass(classNames, el)`, `removeClass(classNames, el)` - Add/remove classes individually. `classNames` can be a single class name, or an array of class names. For `removeClass`, an empty string, null or undefined can be used to remove all classes (removes the class attribute).
@@ -85,6 +171,12 @@ Please see the documentation for archived changelogs - a new archive is produced
 * Allowed low-code `attributes` property to be an array when specifying classes to apply. All classes in the array will be applied.
 * Moved `$` and `$$` functions to this library from uibuilder.
 
+### `uib-brand.css`
+
+* `body` left/right margins are now set by a CSS var `--base-margin` so they can be adjusted more easily.
+* Added `li.check` (AKA `li.completed`), `li.uncheck` (AKA `li.unstarted`), and `li.started` classes which change list bullets to ✅, ❌, and ✔️ respectively.
+* Added `ui.checklist` with `--base-margin` left/right margins and a little more space for the check bullets.
+
 ### Documentation
 
 * Heading levels 3+ have been made lighter to better differentiate them visually.
@@ -93,6 +185,8 @@ Please see the documentation for archived changelogs - a new archive is produced
 
 ## Other
 
+* **FIXED** uibuilder's instance debug page was not working. Now fixed.
+* The list of all uibuilder apps available at `/uibuilder/apps` is now sorted by URL. Don't forget that it also uses the description fields of each uibuilder node.
 * More work done to move all filing system access into the single `libs/fs.js` library.
 * Usual ongoing work to tidy, clarify and simplify code & eliminate any small issues.
 * All nodes now have an Editor property `addType` which is set to 1 of 'load', 'new', or 'paste/import'. Allowing processing to differentiate between different circumstances that add nodes to the flow.
diff --git a/docs/client-docs/custom-components.md b/docs/client-docs/custom-components.md
index 26dbb462..351be983 100644
--- a/docs/client-docs/custom-components.md
+++ b/docs/client-docs/custom-components.md
@@ -19,28 +19,106 @@ However, some components may also be built so that they can be loaded as a linke
 > [!NOTE]
 > UIBUILDER's no-code `uib-element` node currently sends out low-code JSON data that describes each element. While this is reasonably efficient since no actual HTML/JavaScript code is sent, it could be even more efficient by having a corresponding web component for each element. This is something that is likely to happen in a future release.
 
-## Built-in components
+## Built-in components: `uib-var` - include easily updated output in the page :id=uib-var
 
-### uib-var - include a managed variable in the page
+This component provides another way to make it easy to include dynamic data in your web UI and to update it. It is roughly equivalent to the "mustache" style brackets found in many front-end frameworks (<code>&#123;{myvariable}}</code>). However, unlike those, it is 100% standard HTML. The component reference is replaced in the web page by a uibuilder managed variable value, msg topic payload, or the returned value of a filter function - depending on the attributes provided.
 
-A built-in web component `<uib-var>`, used in your HTML as `<uib-var variable="uibVarName"></uib-var>`.
+Included in your page using the `<uib-var>`, see the examples below on how to include this in your HTML. You can also use the no-code `uib-tag` node to add it to your HTML. 
+
+There is no need to separately load the component, that is done automatically by the uibuilder client library.
+
+
+### Attributes
+
+These attributes can be added to the `<uib-var>` tag. Noting that attributes must always have _string_ values, e.g. `topic="my/topic/#1"`.
+
+#### `topic` :id=topic
+
+Adds a background "listener" for messages from Node-RED via UIBUILDER that have the `topic` property matching this attribute. For example, the HTML `<uib-var topic="my/topic/#1"></uib-var>` will be automatically updated to show `42` when the corresponding uibuilder node is sent a message containing `{topic: 'my/topic/#1', payload: 42}`.
+
+This is the easiest way to use the `uib-var` component with UIBUILDER.
+
+This approach is especially useful to be able to display MQTT topic values in your UI
+
+> Cannot be used in conjunction with the `variable` attribute.
+
+#### `variable` :id=variable
 
 Displays the *value* of the given variable name in your web page and *dynamically updates* as long as the variable is changed using `uibuilder.set()`; or from Node-RED using the appropriate uib set command, e.g. `msg = {"command":"set","prop":"myVar","value":"42"}`. By default, the tag inserts the variable value inline with other text. Class and Style attributes can be added as for any other HTML.
 
-Other attributes are available on the component tag:
+> Cannot be used in conjunction with the `topic` attribute.
 
-- `undefined`: If present or set to `on`, or `true`, the component will show even if the variable is undefined. 
+#### `filter` :id=filter
+
+Takes a string representation of a function to run before display. It can be used on its own or in conjunction with either the `variable` or `topic` attributes.
+
+When used with the `variable` or `topic` attributes, the function will be passed the corresponding value as its first parameter. Any additional parameters provided on this attribute will be merged _after_ the value.
+
+The function must be accessible from the global `window` environment and return valid text or HTML which will be used as the displayed content.
+
+The attribute string may include simple arguments only (e.g. strings, booleans and numbers - `filter="myfunc('text', 42, true)"`).
+
+Dotted notation for the function name is allowed (e.g. `uibuilder.get('version')`) but the array style (e.g. `uibuilder['get']('version')`) is not permitted.
+
+If the function name is not found in the global window context, the `uibuilder` context is searched so `get('version')` will call `uibuilder.get('version')` so long as `get` is not defined as `window.get` which would take preference.
+
+Generally, it will be best to define your own function. Further standard filters may be added in future releases of UIBUILDER. Until then, a list of standard filters included in the uibuilder is provided [lower-down](#useful-filter-functions).
+
+> [!NOTE]
+> If having problems getting your filter functions recognised, try adding them earlier in the HTML, for example, defining the `lang` filter:
+> ```html
+  <!-- #region Supporting Scripts. These MUST be in the right order. Note no leading / -->
+  <script>
+    // Some filter functions
+    globalThis.lang = () => navigator.language
+    globalThis.yen = (v) => uibuilder.formatNumber( v, 2, 'ja-JP', { style: 'currency', currency: 'JPY' } )
+  </script>
+  <script defer src="../uibuilder/uibuilder.iife.min.js"></script>
+  <script defer src="./index.js"></script>
+  <!-- #endregion -->
+> ```
+
+#### `undefined` :id=undefined
+
+If present or set to `on`, or `true`, the component will show even if the variable is undefined. 
   
-  If not present or set to anything else, an undefined variable will show the _slot content_ (anything put between the open and close tag). This lets you have an initial value showing that is replaced as soon as the variable is actually set.
+If not present or set to anything else, an undefined variable will show the _slot content_ (anything put between the open and close tag). This lets you have an initial value showing that is replaced as soon as the variable is actually set.
+
+#### `report` :id=report
+
+If present or set to `on`, or `true`, the component will return a standard message back to Node-RED when the variable changes value.
+
+#### `type` :id=type
+
+Must be one of 'plain', 'html', 'markdown', or 'object'. `plain` and `html` simply insert the variable as-is. `markdown` allows the insertion of Markdown as long as the Markdown-IT library is loaded (it will also sanitise the resulting HTML if the DOMPurify library is loaded). `object` does some basic formatting to allow object or array variables to be more easily read.
 
-- `report`: If present or set to `on`, or `true`, the component will return a standard message back to Node-RED when the variable changes value.
-- `type`: Must be one of 'plain', 'html', 'markdown', or 'object'. `plain` and `html` simply insert the variable as-is. `markdown` allows the insertion of Markdown as long as the Markdown-IT library is loaded (it will also sanitise the resulting HTML if the DOMPurify library is loaded). `object` does some basic formatting to allow object or array variables to be more easily read.
 
 This works with Markdown via the `uib-element` node as well and even works if DOMPurify is loaded as overrides to its filters are provided.
 
-There is no need to load the component, that is done automatically in the uibuilder client library.
 
-Examples: 
+### Styling
+
+The component tries to load `./index.css` as a stylesheet so that your own styling can be used in any output.
+
+Simply ensure that the file is served from the same URL location as your main page.
+
+This is the standard method for UIBUILDER instances but this feature is not dependent on UIBUILDER.
+
+### Useful filter functions
+
+#### `uibuilder.formatNumber` :id=format-number
+
+Formats a number to a given locale and optionally, a set number of decimal places.
+
+Example, formatting to 2dp using the Japanese locale: `<uib-var topic="mynumber" filter="uibuilder.formatNumber(2, 'ja-JP')"></uib-var>`.
+
+Note that the value is passed automatically so the first provided argument is the number of decimal places.
+
+Parameters: `formatNumber(value, decimalPlaces, intl, opts)`. Where `opts` is an INTL formatting object.
+
+See details in the [client functions doc](client-docs/functions#formatNumber).
+
+### Examples
 
 ```html
 <p>
@@ -65,10 +143,20 @@ The version of the uibuilder client library currently
 loaded is `<uib-var variable="version"></uib-var>`.
 ```
 
+#### Adding a tag to your page using no-code from Node-RED
+
+Use a `uib-tag` node:
+
+![example uib-tag node](image.png)
+
 ## External components
 
 Web components can be challenging to build but are often fairly simple. There are plenty of web resources to get you started with development of them. However, there are also a lot of existing components that you can easily make use of with Node-RED and UIBUILDER.
 
+Such components can be manually added to your `index.html` file OR they can be dynamically added using UIBUILDER's no-code `uib-tag` node.
+
+Some potentially useful components are shown below.
+
 ### Totally Information experimental web components
 
 Totally Information has a (so far experimental) set of web components that work with or without UIBUILDER though they will generally have extra features when used with. See the [TotallyInformation/web-components GitHub repo](https://github.com/TotallyInformation/web-components) for details. 
diff --git a/docs/client-docs/functions.md b/docs/client-docs/functions.md
index 0f9c58e1..3eb5164b 100644
--- a/docs/client-docs/functions.md
+++ b/docs/client-docs/functions.md
@@ -4,7 +4,7 @@ description: >
    Details about the functions/methods used in the UIBUILDER front-end client library.
    Some functions are available to your own custom code and some are hidden inside the `uibuilder` client object.
 created: 2023-01-28 15:56:57
-lastUpdated: 2023-11-24 19:54:49
+lastUpdated: 2023-12-10 15:02:22
 ---
 
 Functions accessible in client-side user code.
@@ -37,7 +37,7 @@ UIBUILDER also allows you to issue control commands from Node-RED to your front-
 
 ## Sending Messages to Node-RED
 
-### `eventSend(domevent, originator = '')` - Send a standard message back to Node-RED in response to a DOM event
+### `eventSend(domevent, originator = '')` - Send a standard message back to Node-RED in response to a DOM event :id=eventSend
 
 This is a convenience function that is useful to attach as an event handler on an HTML DOM event (e.g. the click event of a button). Since it only requires the DOM event object that the DOM provides automatically.
 
@@ -59,7 +59,7 @@ If the source event type is `change` (e.g. a user changed an input field and the
 > The input element validity property can contain any of the following: badInput, customError, patternMismatch, rangeOverflow, rangeUnderflow, stepMismatch, tooLong, tooShort, typeMismatch, valueMissing. See [ValidityState](https://developer.mozilla.org/en-US/docs/Web/API/ValidityState) for details of the meanings.
 
 
-### `beaconLog(txtToSend, logLevel)` - Send a short log message to Node-RED
+### `beaconLog(txtToSend, logLevel)` - Send a short log message to Node-RED :id=beaconLog
 
 This has the advantage of working even if Socket.IO is not connected. It uses a logging API provided by UIBUILDER.
 
@@ -67,7 +67,7 @@ However, only text strings can be sent and messages need to be kept short. It on
 
 The `logLevel` matches both Node-RED and UIBUILDER defined log levels (e.g. error, warn, info, debug, trace ).
 
-### `htmlSend()` - Sends the whole DOM/HTML back to Node-RED
+### `htmlSend()` - Sends the whole DOM/HTML back to Node-RED :id=htmlSend
 
 Results in a standard message sent to Node-RED where the `msg.payload` contains the whole current HTML page as a string.
 
@@ -77,27 +77,27 @@ The returned message includes `msg.length` to allow checking that the returned h
 
 This can also be triggered from Node-RED. Send a message to the `uibuilder` node containing `msg._uib.command` set to "htmlSend". [Reference](client-docs/control-from-node-red?id=get-complete-copy-of-the-current-web-page)
 
-### ~~logToServer()~~ - Not yet reliable. Will cause the input to appear in Node-RED logs
+### ~~logToServer()~~ - Not yet reliable. Will cause the input to appear in Node-RED logs :id=logToServer
 
-### `send(msg, originator = '')` - Send a custom message back to Node-RED
+### `send(msg, originator = '')` - Send a custom message back to Node-RED :id=send
 
 The `msg` format is the same as used in Node-RED. 
 
 The `originator` is optional and if used, should match the id from a `uib-sender` node. That allows you to specifically return a message into a flow that uses one of those nodes. However, ensure that the `uib-sender` node has turned on the flag to allow returned messages.
 
-### `sendCtrl(msg)` - Send a custom control message back to Node-RED
+### `sendCtrl(msg)` - Send a custom control message back to Node-RED :id=sendCtrl
 
 The message will be assessed by UIBUILDER and passed to its #2 (bottom) output port if considered acceptible.
 
 This lets you create your own control custom messages should you wish to. Use with caution.
 
-### `setOriginator(originator = '')` - Set/clear the default originator
+### `setOriginator(originator = '')` - Set/clear the default originator :id=setOriginator
 
 Will automatically be used by `send` and `eventSend`.
 
 Set to an empty string to remove.
 
-### `setPing(ms)` - Set a repeating ping/keep-alive HTTP call to Node-RED
+### `setPing(ms)` - Set a repeating ping/keep-alive HTTP call to Node-RED :id=setPing
 
 This uses an HTTP API call to a custom UIBUILDER API endpoint in Node-RED. So it works even if the Socket.IO connection is not working. It is used to check that the Node-RED server and the UIBUILDER instance are both still working.
 
@@ -117,7 +117,7 @@ uibuilder.onChange('ping', function(data) {
 > [!NOTE]
 > See [client variables](client-docs/variables) for details of what uibuilder variables are available.
 
-### `copyToClipboard(varToCopy)` - Copy the specified UIBUILDER variable to the browser clipboard
+### `copyToClipboard(varToCopy)` - Copy the specified UIBUILDER variable to the browser clipboard :id=copyToClipboard
 
 Can only be used as an event handler because browsers do not allow unrestricted JavaScript access to the browser clipboard.
 
@@ -127,7 +127,7 @@ Can only be used as an event handler because browsers do not allow unrestricted
 <button onclick="copyToClipboard('version')">Copy UIBUILDER client version string to clipboard</button>
 ```
 
-### `get(prop)` - Get a UIBUILDER property
+### `get(prop)` - Get a UIBUILDER property :id=get
 
 This is the preferred method to get an exposed UIBUILDER variable or property. Do not try to access variables and properties directly unless explicitly shared in this documentation. This function can also be called from Node-RED via `msg._uib.command` - `get` with `msg._uib.prop` set to the variable name to get.
 
@@ -137,13 +137,13 @@ This is the preferred method to get an exposed UIBUILDER variable or property. D
 console.log( uibuilder.get('version') )
 ```
 
-### `getManagedVarList()` - Get a list of all UIBUILDER managed variables
+### `getManagedVarList()` - Get a list of all UIBUILDER managed variables :id=getManagedVarList
 
 A UIBUILDER managed variable is one that has been created with `uibuilder.set()` (or changed from Node-RED with the equivalent command msg). As such, it can be watched for changes with `uibuilder.onChange()`.
 
 This function can also be called from Node-RED via `msg._uib.command` - `getManagedVarList`. The returned `msg.payload` contains the list. Optionally, you can also add `msg._uib.prop` set to `full` which will return an object where each key/value is the variable name. This can be usefull for some types of processing.
 
-### `getWatchedVars()` - Get a list of all UIBUILDER watched variables
+### `getWatchedVars()` - Get a list of all UIBUILDER watched variables :id=getWatchedVars
 
 Shows all variables that are being watched using `uibuilder.onChange()`.
 
@@ -152,7 +152,7 @@ This function can also be called from Node-RED via `msg._uib.command` - `getWatc
 > [!WARNING]
 > `localStorage` is shared per _(sub)domain_, e.g. the IP address/name and port number. All pages from the same origin share the variables.
 
-### `getStore(id)` - Attempt to get and re-hydrate a key value from browser localStorage
+### `getStore(id)` - Attempt to get and re-hydrate a key value from browser localStorage :id=getStore
 
 Note that browser localStorage is persisted even after a browser closes. It can be manually cleared from the browser's settings. You can also remove an item using the `removeStore` function.
 
@@ -162,14 +162,14 @@ All `id`s have a pre-defined UIBUILDER prefix added to the key name to help ensu
 
 Because the browser storage API only allows strings as values, the data has to be serialised. This function attempts to unserialise (re-hydrate). It should be noted that sometimes, this process results in values that may differ from the original. For example, `uibuilder.setStore('mydate',new Date()); console.log( uibuilder.getStore('mydate') )` will return the saved date as an ISO8602 date string, not a JavaScript Date object.
 
-### `removeStore(id)` - Attempt to remove a UIBUILDER key from browser localStorage
+### `removeStore(id)` - Attempt to remove a UIBUILDER key from browser localStorage :id=removeStore
 
 Does not return anything. Does not generate an error if the key does not exist.
 
 > [!WARNING]
 > `localStorage` is shared per _(sub)domain_, e.g. the IP address/name and port number. All pages from the same origin share the variables. It also only survives until the browser is closed.
 
-### `set(prop, val, store, autoload)` - Set a UIBUILDER property and dispatch a change event
+### `set(prop, val, store, autoload)` - Set a UIBUILDER property and dispatch a change event :id=set
 
 This is the preferred method to set an exposed UIBUILDER variable or property. Do not try to set variables and properties directly.
 
@@ -188,7 +188,7 @@ This function can also be called from Node-RED via `msg._uib.command` - `set` wi
 uibuilder.set('logLevel', 3)
 ```
 
-### `setStore(id, val, autoload)` - Attempt to save to the browsers localStorage
+### `setStore(id, val, autoload)` - Attempt to save to the browsers localStorage :id=setStore
 
 Write a value to the given id to localStorage. Will fail if localStorage has been turned off or is full.
 
@@ -258,11 +258,11 @@ Notes:
 * Turn on the optional `msg._uib` feature in the UIBUILDER node to see which client is sending the messages.
 * Due to the nature of the IntersectionObserver API, this fn is not available as a command for now.
 
-### `htmlSend()` - Sends the whole DOM/HTML back to Node-RED
+### `htmlSend()` - Sends the whole DOM/HTML back to Node-RED :id=htmlSend
 
 See under [Message Handling](#message-handling) above for details.
 
-### `include(url, uiOptions)` - insert an external file into the web page
+### `include(url, uiOptions)` - insert an external file into the web page :id=include
 
 Requires a browser supporting the [`fetch` API](https://caniuse.com/fetch). This function is asynchronous, that should be allowed for when using in custom front-end code.
 
@@ -317,13 +317,13 @@ Either from a remote URL or from a text string.
 
 Directly call the functions of the same name from the `ui.js` library.
 
-### `loadui(url)` - Load a dynamic UI from a JSON web response
+### `loadui(url)` - Load a dynamic UI from a JSON web response :id=loadui
 
 Requires a valid URL that returns correct _ui data. For example, a JSON file delivered via static web server or a dynamic API that returns JSON as the body response.
 
 Directly calls `_ui.loadui` from the `ui.js` library.
 
-### `notify(config)` - Use the browser and OS notification API to show a message to the user
+### `notify(config)` - Use the browser and OS notification API to show a message to the user :id=notify
 
 Requires a browser that supports the [Notification API](https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification).
 
@@ -384,7 +384,7 @@ See also [addClass](#addClass). Uses [`el.classList.remove`](https://developer.m
 
 Note that if you want to _toggle_ a class on/off, use the HTML DOM: `$('#more').classList.toggle('myclass')`. See [MDN DOMTokenList/toggle](https://developer.mozilla.org/en-US/docs/Web/API/DOMTokenList/toggle) for details.
 
-### `replaceSlot(el, component)` - Replace or add an HTML element's slot from text or an HTML string
+### `replaceSlot(el, component)` - Replace or add an HTML element's slot from text or an HTML string :id=replaceSlot
 
 This function is mostly for internal use.
 
@@ -396,7 +396,7 @@ Will use [DOMPurify](client-docs/readme#_1-dompurify-sanitises-html-to-ensure-sa
 
 Directly calls `_ui.replaceSlot` from the `ui.js` library.
 
-### `replaceSlotMarkdown(el, component)` - Replace or add an HTML element's slot from a Markdown string
+### `replaceSlotMarkdown(el, component)` - Replace or add an HTML element's slot from a Markdown string :id=replaceSlotMarkdown
 
 This function is mostly for internal use.
 
@@ -410,7 +410,7 @@ Will use [DOMPurify](client-docs/readme#_1-dompurify-sanitises-html-to-ensure-sa
 
 Directly calls `_ui.replaceSlotMarkdown` from the `ui.js` library.
 
-### `sanitiseHTML(htmlText)` - Ensures that input HTML text is safe
+### `sanitiseHTML(htmlText)` - Ensures that input HTML text is safe :id=sanitiseHTML
 
 Returns a safe, sanitised HTML string IF the DOMPurify library is loaded. Otherwise returns the input.
 
@@ -426,7 +426,7 @@ Returns `true` if the element was found, false otherwise.
 
 Can also be called from Node-RED with a command message: `{"_uib": {command: "scrollTo", "prop": "cssSelector"}}` or, with options: `{"_uib": {command: "scrollTo", "prop": "#mydivid", "value": {"block": "bottom"}}}`.
 
-### `showDialog(type, ui, msg)` - Show a toast or alert style message on the UI
+### `showDialog(type, ui, msg)` - Show a toast or alert style message on the UI :id=showDialog
 
 Directly calls `_ui.showDialog` from the `ui.js` library.
 
@@ -456,7 +456,7 @@ Directly calls `_ui.showDialog` from the `ui.js` library.
 }
 ```
 
-### `showMsg(boolean, parent=body)` - Show/hide a card that automatically updates and shows the last incoming msg from Node-RED
+### `showMsg(boolean, parent=body)` - Show/hide a card that automatically updates and shows the last incoming msg from Node-RED :id=showMsg
 
 Simply add `uibuilder.showMsg(true)` early in your index.js custom code and a box will be added to the end of your page that will automatically show the last message sent from Node-RED. Use `uibuilder.showMsg()` to toggle the display.
 
@@ -468,7 +468,7 @@ This function can also be called from Node-RED via `msg._uib.command` - `showMsg
 
 Adds/removes `<div id="uib_last_msg">` to/from the page.
 
-### `showStatus(boolean, parent=body)` - Show/hide a card shows the current status of the UIBUILDER client library
+### `showStatus(boolean, parent=body)` - Show/hide a card shows the current status of the UIBUILDER client library :id=showStatus
 
 Simply add `uibuilder.showStatus(true)` early in your index.js custom code and a box will be added to the end of your page that will show all of the important settings in the UIBUILDER client. Use `uibuilder.showStatus()` to toggle the display.
 
@@ -480,7 +480,7 @@ This function can also be called from Node-RED via `msg._uib.command` - `showSta
 
 Adds/removes `<div id="uib_status">` to/from the page.
 
-### `syntaxHighlight(json)` - Takes a JavaScript object (or JSON) and outputs as formatted HTML
+### `syntaxHighlight(json)` - Takes a JavaScript object (or JSON) and outputs as formatted HTML :id=syntaxHighlight
 
 Is used internally by the `showMsg` function but may be useful for custom processing. If used in custom code, make sure to wrap the output in a `<pre>` tag.
 
@@ -493,13 +493,13 @@ const eMsg = $('#msg')    // or  document.getElementById('msg') if you prefer
 if (eMsg) eMsg.innerHTML = uibuilder.syntaxHighlight(msg)
 ```
 
-### `ui(json)` - Directly manage UI via JSON
+### `ui(json)` - Directly manage UI via JSON :id=ui
 
 Takes either an object containing `{_ui: {}}` or simply simple `{}` containing ui instructions. See [Config Driven UI](client-docs/config-driven-ui.md) for details of the required data.
 
 Directly calls `_ui.ui` from the `ui.js` library.
 
-### `uiGet(cssSelector, propName=null)` - Get most useful information, or specific property from a DOM element
+### `uiGet(cssSelector, propName=null)` - Get most useful information, or specific property from a DOM element :id=uiGet
 
 Will return an array of found elements with properties.
 
@@ -513,7 +513,7 @@ Can be called from Node-RED with a message like: `{"_uib: {"command": "uiGet", "
 
 Uses `nodeGet` internally.
 
-### `uiWatch(cssSelector, startStop=true/false/'toggle', send=true, showLog=true)` - watches for any changes to the selected HTML elements
+### `uiWatch(cssSelector, startStop=true/false/'toggle', send=true, showLog=true)` - watches for any changes to the selected HTML elements :id=uiWatch
 
 Uses [Mutation Observer](https://developer.mozilla.org/en-US/docs/Web/API/MutationObserver/MutationObserver) to watch for and report on any changes to the DOM (the page).
 
@@ -530,16 +530,16 @@ Can be called from Node-RED with a message like: `{"_uib: {"command": "uiWatch",
 
 ## HTML/DOM Cacheing
 
-### `clearHtmlCache()` - Clears the HTML previously saved to the browser localStorage
-### `restoreHtmlFromCache()` - Swaps the currently displayed HTML to the version last saved in the browser localStorage
+### `clearHtmlCache()` - Clears the HTML previously saved to the browser localStorage :id=clearHtmlCache
+### `restoreHtmlFromCache()` - Swaps the currently displayed HTML to the version last saved in the browser localStorage :id=restoreHtmlFromCache
 
-### `saveHtmlCache()` - Manually saves the currently displayed HTML to the browser localStorage
+### `saveHtmlCache()` - Manually saves the currently displayed HTML to the browser localStorage :id=saveHtmlCache
 
 > [!NOTE]
 > Browser local cache is generally limited to 10MB for the whole source domain.
 > Therefore, it is quite easy to exceed this - use with caution.
 
-### `watchDom(startStop)` - Start/stop watching for DOM changes. Changes automatically saved to browser localStorage
+### `watchDom(startStop)` - Start/stop watching for DOM changes. Changes automatically saved to browser localStorage :id=watchDom
 
 `uibuilder.watchDom(true)` will start the browser watching for any changes to the displayed HTML. When it detects a change, it automatically saves the new HTML (the whole page) to the browser's `localStorage`. This persists across browser and device restarts.
 
@@ -558,7 +558,7 @@ You can ensure that the page display looks exactly like the last update upon pag
 > to control whether a specific page, client or browser tab will process an inbound message.
 > Use this where you have multiple pages or clients and need to target a message to a specific one.
 
-### `onChange(prop, callbackFn)` - Register on-change event listeners for UIBUILDER tracked properties
+### `onChange(prop, callbackFn)` - Register on-change event listeners for UIBUILDER tracked properties :id=onChange
 
 Returns a reference to the callback so that it can be cancelled if needed.
 
@@ -574,7 +574,7 @@ const msgChgEvt = uibuilder.onChange('msg', (msg) => {
 })
 ```
 
-### `cancelChange(prop, cbRef)` - remove all the onChange listeners for a given property
+### `cancelChange(prop, cbRef)` - remove all the onChange listeners for a given property :id=cancelChange
 
 Both arguments must be provided. With `cbRef` having been saved when the listener was set up.
 
@@ -582,7 +582,7 @@ Both arguments must be provided. With `cbRef` having been saved when the listene
 uibuilder.cancelChange('msg', msgChgEvt)
 ```
 
-### `onTopic(topic, callbackFn)` - like onChange but directly listens for a specific topic
+### `onTopic(topic, callbackFn)` - like onChange but directly listens for a specific topic :id=onTopic
 
 ```javascript
 const topicChgEvt = uibuilder.onTopic('my topic', (msg) => {
@@ -591,7 +591,7 @@ const topicChgEvt = uibuilder.onTopic('my topic', (msg) => {
 })
 ```
 
-### `cancelTopic(topic, cbRef)` - like cancelChange for for onTopic
+### `cancelTopic(topic, cbRef)` - like cancelChange for for onTopic :id=cancelTopic
 
 Both arguments must be provided. With `cbRef` having been saved when the listener was set up.
 
@@ -599,7 +599,7 @@ Both arguments must be provided. With `cbRef` having been saved when the listene
 uibuilder.cancelTopic('my topic', topicChgEvt)
 ```
 
-### `watchUrlHash` - Toggle (or manually set on/off) sending URL Hash changes back to Node-RED in a standard msg.
+### `watchUrlHash` - Toggle (or manually set on/off) sending URL Hash changes back to Node-RED in a standard msg :id=watchUrlHash
 
 Manually set on/off using the parameter, e.g. `watchUrlHash(true)`. Or toggle by not sending the parameter.
 
@@ -611,27 +611,11 @@ This function uses the `truthy` utility function for the optional parameter and
 
 ### Custom Events
 
-The UIBUILDER library also issues a number of custom events. These can be handled using the standard `document.addEventListener` JavaScript function.
-
-* `uibuilder:stdMsgReceived` - triggered whenever a normal msg is received from Node-RED. Passes the msg in the data parameter. Happens before any processing of `msg._uib`, `msg._ui` or page/client/tab filtering.
-* `uibuilder:msg:topic:${msg.topic}` - triggered immediately after the above event if the `msg.topic` property is set. Passes the msg in the data parameter.
-* `uibuilder:msg:_ui` - triggered immediately before the library processes `msg._ui`. Passes the msg in the data parameter.
-* `uibuilder:socket:connected` - triggered when a socket.io (websocket) connection is made to Node-RED. Passes some custom data for debugging connection issues.
-* `uibuilder:socket:disconnected` - triggered whenever the socket.io connection to Node-RED is lost. Passes either the disconnect reason text or a JavaScript error object. Can be used for debugging connection issues. Note that it is normal for disconnections to happen if the client device goes to sleep.
-* `uibuilder:constructorComplete` - triggered when the library is at the end of its construction phase. No data is passed.
-* `uibuilder:startComplete` - triggered when the library is at the end of its startup phase. No data is passed. At this point, communications with Node-RED are either established or could not be established.
-* `uibuilder:propertyChanged` - triggered when any managed property is changed. The `uibuilder.set` function is used to trigger managed property updates. Passes the object `{ 'prop': prop, 'value': val }` as data which can be used to filter actions if needed. It is generally easier to use the `uibuilder.onChange` function.
-* `uibuilder:domChange` - triggered if `uibuilder.uiWatch` has been set, if a watched HTML element is changed. The passed data is the same object as would be passed back to Node-RED. Allows easy processing of DOM changes in front-end code if needed. Avoids the need to juggle with the complex Mutation Observer browser API.
-
-```javascript
-document.addEventListener("uibuilder:propertyChanged", (event) => {
-    console.log("uibuilder:propertyChanged. ", 'Property: ', event.details.prop, 'Value: ', event.details.value)
-})
-```
+The UIBUILDER library also issues a number of custom events. These can be handled using the standard `document.addEventListener` JavaScript function. See [Custom Events](client-docs/custom-events.md) for details.
 
 ## Utility
 
-### `$(cssSelector)` - Simplistic jQuery-like document CSS query selector, returns an HTML Element
+### `$(cssSelector)` - Simplistic jQuery-like document CSS query selector, returns an HTML Element :id=dollar
 
 This is a convenience method to help you select HTML DOM elements in your own custom code. All it does is use ` document.querySelector(cssSelector)`. So any errors are the same as the native function.
 
@@ -653,7 +637,7 @@ const eMsg = $('#msg')
 if (eMsg) eMsg.innerHTML = uibuilder.syntaxHighlight(msg)
 ```
 
-### `$$(cssSelector)` - Returns an array of HTML elements properties
+### `$$(cssSelector)` - Returns an array of HTML elements properties :id=dollar2
 
 This function is a convenience wrapper around `Array.from(document.querySelectorAll(cssSelector))`. So it returns an array. The array has an entry for each found element (an empty array if nothing found). Each entry in the array returns the _properties_ of the found element.
 
@@ -661,7 +645,28 @@ This means that it returns different data to the `$()` function.
 
 This is very similar to the function of the same name in the Chromium DevTools. The only difference being that UIBUILDER's function does not accept a 2nd parameter. UIBUILDER's function supercedes that of the DevTools.
 
-### `log` - output log messages like the library does
+### `connect()` - Manually (re)connect Socket.IO communications between the browser and Node-RED :id=connect
+
+Allows fine control of the communications.
+
+### `disconnect()` - Manually disconnect Socket.IO communications between the browser and Node-RED :id=disconnect
+
+Allows fine control of the communications. Also stops the auto-reconnect timer.
+
+### `formatNumber(value, decimalPlaces, intl, opts)` - Format an input number to a given locale and decimal places :id=formatNumber
+
+Takes numeric input and formats it using the JavaScript standard [`INTL` library](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/toLocaleString).
+
+Allows optional setting of the number of decimal places.
+
+The `intl` argument takes the form like `en-GB`, `de-DE` (German), `ja-JP` (Japanese), etc. If not provided, the function takes the browser's current locale using `navigator.language` so that the number defaults to being formatted in the browser's current locale.
+
+The `opts` argument allows passing INTL number formatting options, for example: `{ style: 'currency', currency: 'JPY' }` to get currency formatted as Japanese Yen.
+
+> [!NOTE]
+> This function is compatible with the [`uib-var` web component's `filter` attribute](client-docs/custom-components#filter). e.g. `<uib-var topic="mytopic/#1" filter="uibuilder.formatNumber(2, 'de-DE')">[...]</uib-var>`
+
+### `log` - output log messages like the library does :id=log
 
 Use as `uibuilder.log(1, 'my:prefix', 'Some text', {some:'optional data'})` which produces:
 ![Example log output](../images/example-log-output.png)
@@ -705,7 +710,7 @@ without reloading the page.
 Putting a hash on the end of a full or relative URL will
 trigger the route on the resulting page load.
 
-### `truthy(val, [default])` - Returns true or false or the optional default value depending on the value
+### `truthy(val, [default])` - Returns true or false or the optional default value depending on the value :id=truthy
 
 True accepts 'on', 'On', 'ON', 'true', 'True', 'TRUE', '1', true, 1
 False accepts 'off', 'Off', 'OFF', 'false', 'False', 'FALSE', '0', false, 0
@@ -714,7 +719,7 @@ If neither truthy or falsy, the optional default value is returned or `undefined
 
 ## Startup
 
-### `start(options)` - Mostly no longer needed - Starts Socket.IO communications with Node-RED
+### `start(options)` - Mostly no longer needed - Starts Socket.IO communications with Node-RED :id=start
 
 > [!NOTE]
 > In most cases, you no longer need to call this yourself. The client startup is now more robust and should rarely need any help. The exception will be if you are loading a page from an external server instead of from Node-RED.
@@ -739,19 +744,21 @@ Those marked with `*` can be triggered with a command message from Node-RED flow
 
 If examining the library code, please remember that functions starting with `_` are for *internal* use.
 
-* [`$`](#$)
-* [`$$`](#$$)
-* [`$ui`](#$ui)§ - Reference to the ui.js library, not a function
+* [`$`](#dollar)
+* [`$$`](#dollar2)
+* `$ui`§ - Reference to the ui.js library, not a function
 * [`addClass`](#addClass)§
 * [`beaconLog`](#beaconLog)
 * [`cancelChange`](#cancelChange)
 * [`cancelTopic`](#cancelTopic)
 * [`clearHtmlCache`](#clearHtmlCache)
+* [`connect()`]() - Manually (re)connect Socket.IO communications between the browser and Node-RED
 * [`convertMarkdown`](#convertMarkdown)
 * [`copyToClipboard`](#copyToClipboard)
 * [`elementExists`](#elementExists)*
 * ~~[`elementIsVisible`](#elementIsVisible)~~ - Temporarily deprecated
 * [`eventSend`](#eventSend)
+* [`formatNumber`](#formatNumber)
 * [`get`](#get)*
 * [`getManagedVarList`](#getManagedVarList)*
 * [`getStore`](#getStore)
diff --git a/docs/client-docs/image.png b/docs/client-docs/image.png
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diff --git a/docs/client-docs/uib-brand-css.md b/docs/client-docs/uib-brand-css.md
index 49353b9e..385d07be 100644
--- a/docs/client-docs/uib-brand-css.md
+++ b/docs/client-docs/uib-brand-css.md
@@ -3,7 +3,7 @@ title: Documentation for the uibuilder standard CSS file
 description: >
    Details of the different styles and their usage.
 created: 2023-02-25 13:54:50
-lastUpdated: 2023-05-23 15:15:52
+lastUpdated: 2023-12-11 17:36:55
 ---
 
 *(This document is a work-in-progress, it is not complete)*
@@ -86,9 +86,9 @@ Designed to be small rounded boxes with a left-hand coloured panel (no text) sho
 ## Utility Styles
 
 * `.animate-pulse` - A standard pulse animation. Useful with `.status-side-panel`.
-* `.border` - Turn on a border with a standard color and corner radius.
+* `.border` - Turn on a border with a standard color and corner radius. Margin, padding and corner radius are controlled by variables.
 * `.box` - Similar to border but with internal padding. The box class has matching `h2`-`h6` sub-classes that reduce top margin to 0.5rem.
-* `.centre` (`.center`) - Centres blocks within their parent block (by applying left & right auto margins).
+* `.centre`, `.center` - Centres blocks within their parent block (by applying left & right auto margins).
 * `.emoji` - Apply to a `<span>` containing an emoji to make it look a lot nicer on most platforms.
 * `.noborder` - Turn off a border
 * `.status-side-panel` - A narrow, full-height block designed to show a vertical coloured status bar (no text). Apply one of the standard colour classes as well. Use with `.animate-pulse` to get an eye-catching effect.
@@ -223,11 +223,13 @@ Note that shadows are notoriously difficult to get right in dark modes. The defa
 
 ### Other
 
-* `--mode` - `light` or `dark` according to the current browser preference or html class override.
-* `--font-family` (`sans-serif`) - Sans-serif is much easier to read on-screen, the actual font is left up to the browser/OS.
-* `--uib-css` - Can be used in JavaScript to know if this style sheet is loaded. See the definition for details on use.
+* `--border-margin` (`0`) - Applies to `border` class only. How much `margin` to add to a bordered element.
+* `--border-pad` (`0.5rem`) - Applies to `border` class only. How much `padding` to add to a bordered element.
 * `--border-radius` (`0.5rem`) - Used for all styles that have rounded corners. (buttons, inputs, borders, etc.)
+* `--font-family` (`sans-serif`) - Sans-serif is much easier to read on-screen, the actual font is left up to the browser/OS.
 * `--grid-fit-min` (`15rem`) - Used by the `.grid-fit` class to specify the minimum child component size. That defines when contents will wrap.
+* `--mode` - `light` or `dark` according to the current browser preference or html class override.
+* `--uib-css` - Can be used in JavaScript to know if this style sheet is loaded. See the definition for details on use.
 
 Many other variables are defined that control levels of saturation, light/dark, border radii, shadows, colours, etc.
 
diff --git a/docs/dev/README.md b/docs/dev/README.md
index 91446118..7fbbe145 100644
--- a/docs/dev/README.md
+++ b/docs/dev/README.md
@@ -64,6 +64,13 @@ Due to its complexity, UIBUILDER has a higher than Node-RED average of external
     
     This is not developed directly. The actual code to edit is in `src/editor/uibuilder/` and is built using `gulp` scripts.
 
+## Node-RED Editor Libraries
+
+These libraries provide common Node-RED Editor data, functions and styling for all UIBUILDER nodes.
+
+* [`/resources/ti-common.js`](dev/editor-libs/ti-common) - Common JavaScript library for the Editor.
+* [`/resources/ti-common.css`](dev/editor-libs/ti-common-css) - Common style sheet library for the Editor.
+
 ## uibuilder front-end client library
 
   For details, see the Client Libraries list above.
diff --git a/docs/dev/editor-libs/readme.md b/docs/dev/editor-libs/readme.md
new file mode 100644
index 00000000..b851081d
--- /dev/null
+++ b/docs/dev/editor-libs/readme.md
@@ -0,0 +1,12 @@
+---
+title: UIBUILDER's Node-RED Editor Libraries
+description: >
+  UIBUILDER includes a common JavaScript & CSS library for uibuilder nodes to use in the Editor.
+created: 2023-12-19 16:11:52
+lastUpdated: 2023-12-19 16:11:59
+---
+
+These libraries provide common Node-RED Editor data, functions and styling for all UIBUILDER nodes.
+
+* [`/resources/ti-common.js`](dev/editor-libs/ti-common) - Common JavaScript library for the Editor.
+* [`/resources/ti-common.css`](dev/editor-libs/ti-common-css) - Common style sheet library for the Editor.
diff --git a/docs/dev/editor-libs/ti-common-css.md b/docs/dev/editor-libs/ti-common-css.md
new file mode 100644
index 00000000..78e14997
--- /dev/null
+++ b/docs/dev/editor-libs/ti-common-css.md
@@ -0,0 +1,39 @@
+---
+title: UIBUILDER's Common Node-RED Editor style library
+description: >
+  Provides common, standard, styling to all UIBUILDER nodes in the Node-RED Editor.
+created: 2023-12-19 16:22:27
+lastUpdated: 2023-12-19 16:22:32
+---
+
+Location: `/resources/ti-common.css`
+URL: `<link type="text/css" rel="stylesheet" href="./resources/node-red-contrib-uibuilder/ti-common.css" media="all">
+`
+
+## Useage
+
+Wrap the whole node config panel in `<div id="ti-edit-panel"></div>`.
+
+## Variables
+
+```css
+--uib-node-colour: hsl(248 100% 91%);
+--uib-blue: hsl(204 89% 55% / 70%); 
+--uib-red: hsl(0 100% 45% / 70%); /* #8f0000; */
+```
+
+## Classes
+
+* `.uib-name`
+* `.uib-red`
+* `.emoji`
+
+### Amended Node-RED Classes
+
+* `.ui-tooltip`
+
+## ID's
+
+* `#uib-el .red-ui-typedInput-container`
+* `#ti-edit-panel fieldset`
+* `#ti-edit-panel legend`
diff --git a/docs/dev/editor-libs/ti-common.md b/docs/dev/editor-libs/ti-common.md
new file mode 100644
index 00000000..924a4c2d
--- /dev/null
+++ b/docs/dev/editor-libs/ti-common.md
@@ -0,0 +1,60 @@
+---
+title: UIBUILDER's Common Node-RED Editor support library
+description: >
+  Provides common, standard, functions and data to all UIBUILDER nodes in the Node-RED Editor.
+created: 2023-12-19 16:22:27
+lastUpdated: 2023-12-19 16:22:32
+---
+
+## Editor page globals
+
+`uibuilder` is added to the globals for the Node-RED Editor page. It is only ever added once.
+
+```javascript
+{
+  // Standard palette category for all uibuilder nodes
+  paletteCategory: 'uibuilder',
+  // Standard width for typed input fields
+  typedInputWidth: '68.5%',
+  // Are we running on a local device?
+  localHost: ['localhost', '127.0.0.1', '::1', ''].includes(window.location.hostname) || window.location.hostname.endsWith('.localhost'),
+  // URL root if needed (set below to '' if using a custom uib server)
+  nodeRoot: RED.settings.httpNodeRoot.replace(/^\//, ''),
+  // URL prefix for all uib nodes - set below
+  urlPrefix: undefined,
+  // uib server type
+  serverType: undefined,
+  /** Tracks ALL uibuilder editor instance URL's by node id by tracking changes to the Node-RED Editor - ONLY USE FOR URL TRACKING
+   * These URL's may not actually be deployed. They also include disabled nodes (node.d=true) AND disabled flows.
+   * NOTE: Nodes on disabled flows are not directly detectable and node.d will not be set.
+   * @type {{string,string}|{}}
+   */
+  editorUibInstances: {},
+  /** Tracks all DEPLOYED uibuilder instances url's by node id @type {{string,string}|{}} */
+  deployedUibInstances: {},
+  /** Tracks uibuilder's installed front-end packages - changes as packages added/removed (in uibuilder node) */
+  packages: [],
+  /** List of uib node names */
+  uibNodeTypes: ['uibuilder', 'uib-cache', 'uib-element', 'uib-html', 'uib-save', 'uib-sender', 'uib-tag', 'uib-update'],
+
+  // Debug output via log() - turn on/off with true/false
+  get debug() { return _dbg },
+  set debug(dbg) { /* ... */ },
+  log: function(...args) {},
+
+  /** Add jQuery UI formatted tooltips - add as the last line of oneditprepare in a node
+   * @param {string} baseSelector CSS Selector that is the top of the hierarchy to impact
+   */
+  doTooltips: function doTooltips(baseSelector) { /* ... */ },
+  /** Get all of the currently deployed uibuilder URL's & updates this.deployedUibInstances
+   * NOTE that the uibuilder.editorUibInstances cannot be used as that includes disabled nodes/flows
+   * @returns {{string,string}} URLs by node id of deployed uibuilder nodes
+   */
+  getDeployedUrls: function getDeployedUrls() { /* ... */ },
+  /** Sort an instances object by url instead of the natural order added
+   * @param {*} instances The instances object to sort
+   * @returns {*} instances sorted by url
+   */
+  sortInstances: function sortInstances(instances) { /* ... */ },
+}
+```
diff --git a/docs/dev/server-libs/uiblib.md b/docs/dev/server-libs/uiblib.md
index cbbe86b0..41fc0244 100644
--- a/docs/dev/server-libs/uiblib.md
+++ b/docs/dev/server-libs/uiblib.md
@@ -3,7 +3,7 @@ title: General, non-uibuilder-specific function Library
 description: >
    Utility library containing methods that support UIBUILDER. The methods it contains are not generic and will require references to Node-RED objects to be passed.
 created: 2021-06-27 21:35:00
-lastUpdated: 2023-11-10 15:46:23
+lastUpdated: 2023-12-19 16:20:58
 ---
 
 `nodes/libs/uiblib.js`
@@ -26,6 +26,9 @@ None
 ### processClose
 ### sendControl
 ### setNodeStatus
+### sortInstances
+
+Sort a uibuilder instances object by url instead of the natural order added
 
 ### readGlobalSettings - DEPRECATED in v2.0
 
diff --git a/docs/roadmap.md b/docs/roadmap.md
index 88fa7ec3..8278baaf 100644
--- a/docs/roadmap.md
+++ b/docs/roadmap.md
@@ -413,6 +413,9 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 
 ### client Library
 * [**STARTED**] Ability to visually show all uibuilder managed variables. 
+
+* Add client `tag()` function that creates a new HTML element similar to the Node-RED side `uib-tag` node. (See https://redom.js.org for refs)
+
 * A way to show and change uib-brand variables visually?
 * Add extra optional flag to set() to allow saving to localStorage - where set, auto-load on (re)load
 
@@ -560,6 +563,7 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 
 #### Videos
 
+* Updating content/attributes (see [ref](how-to/change-element.md))
 * Each release
 * Each node
 * Snapshots (grab html and save somewhere)
@@ -607,6 +611,8 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 
 ### Ideas
 
+* *STARTED* How to add FILTERs (text formaters) to `<uib-var>`? They should be a collection of JS functions that are auto-given the var as a value, add any other args and return a formatted version of the value. Filters should be chainable. Reflect.apply(target, thisArgument, argumentsList)
+
 * PAGE CREATOR: Something that creates a new page file from template. Could be an extension to uib-save?
   * Maybe also a way to track pages? A catalogue? Maybe also an API to return all HTML file names as an array?
   * Consider scraping all .html files in each uibuilder instance and building an auto-list that can be added to the `../uibuilder/apps` page. Possibly with a manual override list option.
@@ -621,7 +627,12 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 
 * Change fixed text to use `RED._` for l8n. See: https://discourse.nodered.org/t/flexdash-alpha-release-a-dashboard-for-node-red/65861/48. [ref](https://discourse.nodered.org/t/question-on-internationalisation-can-i-have-1-json-file-for-several-nodes/76300/2)
 
-* NEW NODE: `uib-room` - linked to a uibuilder node, creates a socket.io room. Will need a way to tell the connected clients to subscribe to the romm (optional) and FE fns to connect/disconnect from rooms.
+* NEW NODE: `uib-room` - linked to a uibuilder node, creates a socket.io room. Will need a way to tell the connected clients to subscribe to the room (optional) and FE fns to connect/disconnect from rooms.
+
+* UIB index page - new node? Default to root url. Show all instances by default, optional pages? Include descriptions. Selectable list of instances/pages. Allow for multiple instances of the node with different settings. CSS.
+
+* ?For no-code nodes that might have class selectors - add a search button that searches the uib-brand.css?
+* ?Have a toggled UI button that opens the Node-RED Editor to the correct location for the URL?
 
 
 #### Questions that need answers

From 5adb04822e754c3551822333656582e7aa026263 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Sat, 30 Dec 2023 13:42:50 +0000
Subject: [PATCH 52/78] Rename template.html to panel.html.

---
 resources/uib-save.js                             | 2 +-
 src/editor/uib-save/main.html                     | 2 +-
 src/editor/uib-save/{template.html => panel.html} | 0
 3 files changed, 2 insertions(+), 2 deletions(-)
 rename src/editor/uib-save/{template.html => panel.html} (100%)

diff --git a/resources/uib-save.js b/resources/uib-save.js
index dcc27214..7f63255a 100644
--- a/resources/uib-save.js
+++ b/resources/uib-save.js
@@ -1,7 +1,7 @@
 /* eslint-disable strict, sonarjs/no-duplicate-string */
 
 // Isolate this code
-(function () {
+;(function () {
     'use strict'
 
     // NOTE: window.uibuilder is added - see `resources` folder
diff --git a/src/editor/uib-save/main.html b/src/editor/uib-save/main.html
index 241b0081..10da03df 100644
--- a/src/editor/uib-save/main.html
+++ b/src/editor/uib-save/main.html
@@ -19,7 +19,7 @@
 <script src="./resources/node-red-contrib-uibuilder/uib-save.js"></script>
 
 <script type="text/html" data-template-name="uib-save">
-<!--=include template.html -->
+<!--=include panel.html -->
 </script>
 
 <script type="text/html" data-help-name="uib-save">
diff --git a/src/editor/uib-save/template.html b/src/editor/uib-save/panel.html
similarity index 100%
rename from src/editor/uib-save/template.html
rename to src/editor/uib-save/panel.html

From 69334b226f58a504bf0583b31e70e45ee6132151 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Sat, 30 Dec 2023 13:44:01 +0000
Subject: [PATCH 53/78] Move js to resources. Fix minor typo's

---
 nodes/uib-cache.html                          | 149 +-----------------
 .../editor.js => resources/uib-cache.js       |  23 ++-
 src/editor/uib-cache/main.html                |   7 +-
 3 files changed, 13 insertions(+), 166 deletions(-)
 rename src/editor/uib-cache/editor.js => resources/uib-cache.js (88%)

diff --git a/nodes/uib-cache.html b/nodes/uib-cache.html
index 687ee20d..9683b41e 100644
--- a/nodes/uib-cache.html
+++ b/nodes/uib-cache.html
@@ -1,151 +1,4 @@
-<link type="text/css" rel="stylesheet" href="./resources/node-red-contrib-uibuilder/ti-common.css" media="all"><script src="./resources/node-red-contrib-uibuilder/ti-common.js"></script><script type="text/javascript">/* eslint-disable sonarjs/no-duplicate-string */
-/* eslint-disable strict */
-
-// Isolate this code
-(function () {
-    'use strict'
-
-    const mylog = window['uibuilder'].log
-
-    /** Module name must match this nodes html file @constant {string} moduleName */
-    const moduleName  = 'uib-cache'
-    /** Node's label @constant {string} paletteCategory */
-    const nodeLabel  = moduleName
-    /** Node's palette category @constant {string} paletteCategory */
-    const paletteCategory  = window['uibuilder'].paletteCategory
-    /** Node's background color @constant {string} paletteColor */
-    const paletteColor  = 'var(--uib-node-colour)' // '#E6E0F8'
-
-    /** Populate the store dropdown */
-    function populateUseStoreDropdown() {
-        const storeNames = []
-
-        RED.settings.context.stores.forEach( store => {
-            storeNames.push({ value: store, label: store })
-        })
-
-        $('#node-input-storeName').typedInput({
-            types: [
-                {
-                    value: 'storeNames',
-                    options: storeNames,
-                }
-            ]
-        })
-    }
-
-    /** Return a text string showing if caching by a key
-     * @returns {string} Text to show if "Cache By" is set
-     */
-    function helpTextNumMsgsCacheBy() {
-        return ` <b>for each msg.${$('#node-input-cacheKey').val()} value</b>`
-    }
-
-    /** If caching my a msg.xxxxx value, show/hide bits of help text
-     * @param {boolean} isVisible Whether the Cache By field is visible
-     */
-    function keyVisibility(isVisible) {
-        if (isVisible === true) {
-
-            $('#cacheKey-row').show()
-            $('#help-per').show()
-            $('#caspan').hide()
-        } else {
-            $('#cacheKey-row').hide()
-            $('#help-per').hide()
-            $('#caspan').show()
-        }
-    }
-
-    /** Prep for edit
-     * @param {*} node A node instance as seen from the Node-RED Editor
-     */
-    function onEditPrepare(node) {
-        // initial checkbox states
-        // if (!node.persistence) node.persistence = false
-        if (!node.cacheall) node.persistence = false
-
-        // Make sure that the key always has a value (and is not '') - default to msg.topic
-        if ( !node.cacheKey ) node.cacheKey = 'topic'
-
-        if ( !node.varName ) {
-            node.varName = 'uib_cache'
-            $('#node-input-varName').val('uib_cache')
-        }
-
-        // Populate Type dropdown: node, flow, global
-        $('#node-input-storeContext').typedInput({
-            type: 'contextType',
-            types: [
-                {
-                    value: 'contextType',
-                    options: [
-                        // @ts-expect-error
-                        { value: 'context', label: 'Node' },
-                        // @ts-expect-error
-                        { value: 'flow', label: 'Flow' },
-                        // @ts-expect-error
-                        { value: 'global', label: 'Global' },
-                    ]
-                }
-            ]
-        })
-
-        // Set up context store select drop-down
-        populateUseStoreDropdown()
-
-        // Update help text if Cache By value changes
-        $('#node-input-cacheKey').on('change', function() {
-            $('#help-per').html( helpTextNumMsgsCacheBy() )
-        })
-
-        // Either all or by prop, not both
-        $('#node-input-cacheall').on('change', function() {
-            keyVisibility(!$(this).is(':checked'))
-        })
-
-        $('#node-input-storeContext').on('change',  function() {
-            if ( $(this).val() === 'context' ) {
-                $('#node-input-varName').val('uib_cache').prop( 'disabled', true )
-            } else {
-                $('#node-input-varName').val(`uib_cache_${node.id}`).prop( 'disabled', false )
-            }
-        })
-
-        window['tiDoTooltips']('#ti-edit-panel') // Do this at the end
-    } // ----- end of onEditPrepare() ----- //
-
-    RED.nodes.registerType(moduleName, {
-        category: paletteCategory,
-        color: paletteColor,
-        defaults: {
-            cacheall: { value: false },
-            cacheKey: { value: 'topic' },
-            newcache: { value: true },
-            num: { value: 1, required: true },
-            // persistence: { value: false },
-            storeName: { value: 'default', required: true },
-            name: { value: '' },
-            // store: { },
-            // store-type: {},
-            storeContext: { value: 'context' },
-            varName: { value: 'uib_cache', required: true }
-        },
-        // align:'right',
-        inputs: 1,
-        inputLabels: 'Msg to cache or cache control msg',
-        outputs: 1,
-        outputLabels: ['Through msg or msg from cache'],
-        icon: 'parser-json.svg',
-        paletteLabel: nodeLabel,
-        label: function () {
-            if ( this.cacheall === true ) return this.name || `Cache All (${this.num})`
-            return this.name || `Cache by msg.${this.cacheKey} (${this.num})`
-        },
-
-        oneditprepare: function() { onEditPrepare(this) },
-    }) // ---- End of registerType() ---- //
-}())</script><script type="text/html" data-template-name="uib-cache"><div id="ti-edit-panel">
+<link type="text/css" rel="stylesheet" href="./resources/node-red-contrib-uibuilder/ti-common.css" media="all"><script src="./resources/node-red-contrib-uibuilder/ti-common.js"></script><script src="./resources/node-red-contrib-uibuilder/uib-cache.js"></script><script type="text/html" data-template-name="uib-cache"><div id="ti-edit-panel">
     <div aria-label="Choose what msg property to group cache by" id="cacheKey-row" class="form-row">
         <label for="node-input-cacheKey"><i class="fa fa-tag"></i> Cache by</label>
         msg.<input type="text" id="node-input-cacheKey" placeholder="Enter a msg property. " style="width:64%">
diff --git a/src/editor/uib-cache/editor.js b/resources/uib-cache.js
similarity index 88%
rename from src/editor/uib-cache/editor.js
rename to resources/uib-cache.js
index 82a51b23..e2f08f2b 100644
--- a/src/editor/uib-cache/editor.js
+++ b/resources/uib-cache.js
@@ -1,20 +1,17 @@
 /* eslint-disable sonarjs/no-duplicate-string */
-/* eslint-disable strict */
 
 // Isolate this code
-(function () {
+;(function () {
     'use strict'
 
-    const mylog = window['uibuilder'].log
+    // NOTE: window.uibuilder is added - see `resources` folder
+    // RED._debug({topic: 'RED.settings', payload:RED.settings})
+
+    const uibuilder = window['uibuilder']
+    const log = uibuilder.log
 
     /** Module name must match this nodes html file @constant {string} moduleName */
     const moduleName  = 'uib-cache'
-    /** Node's label @constant {string} paletteCategory */
-    const nodeLabel  = moduleName
-    /** Node's palette category @constant {string} paletteCategory */
-    const paletteCategory  = window['uibuilder'].paletteCategory
-    /** Node's background color @constant {string} paletteColor */
-    const paletteColor  = 'var(--uib-node-colour)' // '#E6E0F8'
 
     /** Populate the store dropdown */
     function populateUseStoreDropdown() {
@@ -112,12 +109,10 @@
             }
         })
 
-        window['tiDoTooltips']('#ti-edit-panel') // Do this at the end
+        uibuilder.doTooltips('#ti-edit-panel') // Do this at the end
     } // ----- end of onEditPrepare() ----- //
 
     RED.nodes.registerType(moduleName, {
-        category: paletteCategory,
-        color: paletteColor,
         defaults: {
             cacheall: { value: false },
             cacheKey: { value: 'topic' },
@@ -137,11 +132,13 @@
         outputs: 1,
         outputLabels: ['Through msg or msg from cache'],
         icon: 'parser-json.svg',
-        paletteLabel: nodeLabel,
         label: function () {
             if ( this.cacheall === true ) return this.name || `Cache All (${this.num})`
             return this.name || `Cache by msg.${this.cacheKey} (${this.num})`
         },
+        paletteLabel: moduleName,
+        category: uibuilder.paletteCategory,
+        color: 'var(--uib-node-colour)', // '#E6E0F8'
 
         oneditprepare: function() { onEditPrepare(this) },
     }) // ---- End of registerType() ---- //
diff --git a/src/editor/uib-cache/main.html b/src/editor/uib-cache/main.html
index 0548ca62..58d9d6c5 100644
--- a/src/editor/uib-cache/main.html
+++ b/src/editor/uib-cache/main.html
@@ -1,5 +1,5 @@
 <!--
-    Copyright (c) 2022-2023 Julian Knight (Totally Information)
+    Copyright (c) 2022-2024 Julian Knight (Totally Information)
 
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.
@@ -16,10 +16,7 @@
 
 <link type="text/css" rel="stylesheet" href="./resources/node-red-contrib-uibuilder/ti-common.css" media="all">
 <script src="./resources/node-red-contrib-uibuilder/ti-common.js"></script>
-
-<script type="text/javascript">
-/*=include editor.js */
-</script>
+<script src="./resources/node-red-contrib-uibuilder/uib-cache.js"></script>
 
 <script type="text/html" data-template-name="uib-cache">
 <!--=include panel.html -->

From 391495cab9df383ab1479a6e83b9d5168c7c96de Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Sat, 30 Dec 2023 13:44:37 +0000
Subject: [PATCH 54/78] Fix connections count check

---
 nodes/uib-cache.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/nodes/uib-cache.js b/nodes/uib-cache.js
index 9a08b306..ab95578d 100644
--- a/nodes/uib-cache.js
+++ b/nodes/uib-cache.js
@@ -1,8 +1,8 @@
 /** Takes a msg input and caches it then passes it through.
  *  If it receives a cache-replay control msg, it dumps the cache.
- *  If it receives a caech-empty control msg, it empties the cache.
+ *  If it receives a cache-empty control msg, it empties the cache.
  *
- * Copyright (c) 2022-2023 Julian Knight (Totally Information)
+ * Copyright (c) 2022-2024 Julian Knight (Totally Information)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -177,7 +177,7 @@ function inputMsgHandler(msg, send, done) { // eslint-disable-line no-unused-var
 
     // Only send if connection is really new (connections=0) - if newcache is selected
     let sendit = true
-    if ( this.newcache === true && msg.connections && msg.connections > 0 ) sendit = false
+    if ( this.newcache === true && msg.connections && msg.connections > 2 ) sendit = false
 
     // Is this a control msg?
     if ( msg.uibuilderCtrl ) {

From 5f93f65cdc1e53549684e0bb329104312891e0d7 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Sat, 30 Dec 2023 13:45:12 +0000
Subject: [PATCH 55/78] Remove test code

---
 nodes/libs/socket.js | 37 +++++++++++++++++++------------------
 1 file changed, 19 insertions(+), 18 deletions(-)

diff --git a/nodes/libs/socket.js b/nodes/libs/socket.js
index 00b564ce..7d14e7bb 100644
--- a/nodes/libs/socket.js
+++ b/nodes/libs/socket.js
@@ -519,23 +519,23 @@ class UibSockets {
         //#endregion -- -- --
 
         // ! TODO TEST REMOVE
-        if (url === 'uib-router-eg') {
-            setInterval(() => {
-                // console.log(`ping uibuilder:fred. NS: ${url}`, '\n SIDS: ', ioNs.adapter.sids, '\n ROOMS: ', ioNs.adapter.rooms)
-                ioNs.to('uibuilder:fred').emit('uibuilder:fred', `Hello from the server. NS: "${url}"`)
-            }, 60000)
-            setInterval(() => {
-                // console.log(`ping uibuilder:fred. NS: ${url}`, '\n SIDS: ', ioNs.adapter.sids, '\n ROOMS: ', ioNs.adapter.rooms)
-                this.io.of('/').emit('uibuilder:global', 'Hello from the server. NS: "/"')
-            }, 60000)
-            // ioNs.join('uibuilder:fred')
-            ioNs.on('uibuilder:fred', (room, msg) => {
-                console.log('uibuilder:fred', room, msg)
-            })
-            this.io.on('uibuilder:fred', (room, msg) => {
-                console.log('[this.io] uibuilder:fred', room, msg)
-            })
-        }
+        // if (url === 'uib-router-eg') {
+        //     setInterval(() => {
+        //         // console.log(`ping uibuilder:fred. NS: ${url}`, '\n SIDS: ', ioNs.adapter.sids, '\n ROOMS: ', ioNs.adapter.rooms)
+        //         ioNs.to('uibuilder:fred').emit('uibuilder:fred', `Hello from the server. NS: "${url}"`)
+        //     }, 60000)
+        //     setInterval(() => {
+        //         // console.log(`ping uibuilder:fred. NS: ${url}`, '\n SIDS: ', ioNs.adapter.sids, '\n ROOMS: ', ioNs.adapter.rooms)
+        //         this.io.of('/').emit('uibuilder:global', 'Hello from the server. NS: "/"')
+        //     }, 60000)
+        //     // ioNs.join('uibuilder:fred')
+        //     ioNs.on('uibuilder:fred', (room, msg) => {
+        //         console.log('uibuilder:fred', room, msg)
+        //     })
+        //     this.io.on('uibuilder:fred', (room, msg) => {
+        //         console.log('[this.io] uibuilder:fred', room, msg)
+        //     })
+        // }
 
         const that = this
 
@@ -639,7 +639,7 @@ class UibSockets {
             })
             // Allow clients to send message to a custom room
             socket.on('uib-room-send', (room, msg) => {
-                console.log('uib-room-send', { room, msg })
+                // console.log('uib-room-send', { room, msg })
                 ioNs.to(room).emit(room, msg, socket.handshake.auth)
                 // TODO Option to send on as a node-red msg
             })
@@ -715,6 +715,7 @@ class UibSockets {
             //#endregion ---- run when client connects ---- //
 
             //#region ---- Rooms ----
+            // Ensures uib is listening to all clients and pages
             // console.log('socket auth: ', socket.handshake.auth)
             socket.join(`clientId:${socket.handshake.auth.clientId}`)
             socket.join(`pageName:${socket.handshake.auth.pageName}`)

From e9f6ee98f5e2fe340a22891a7becff35ef7e8b0d Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Sat, 30 Dec 2023 13:57:02 +0000
Subject: [PATCH 56/78] Fix validation to allow blanks for slot and attribs

---
 resources/uib-tag.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/resources/uib-tag.js b/resources/uib-tag.js
index 8f2402c9..9f8fc8d6 100644
--- a/resources/uib-tag.js
+++ b/resources/uib-tag.js
@@ -146,10 +146,10 @@
             position: { value: 'last', validate: (v) => tiValidateOptString(v, 'position', false, true) },
             positionSourceType: { value: 'str' },
 
-            slotSourceProp: { value: '' },
+            slotSourceProp: { value: '', validate: () => true }, // allow anything including blank
             slotSourcePropType: { value: 'msg' },
 
-            attribsSource: { value: '' },
+            attribsSource: { value: '', validate: () => true },
             attribsSourceType: { value: 'msg' },
 
             slotPropMarkdown: { value: false },

From 54f9ae56e4e5ea3f2f241d3438d4bedd43ed1e5f Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Sat, 30 Dec 2023 13:58:32 +0000
Subject: [PATCH 57/78] Update to latest format, move js to resources

---
 nodes/uib-update/customNode.html              | 174 +-----------------
 .../editor.js => resources/uib-update.js      |  23 ++-
 src/editor/uib-update/main.html               |   9 +-
 .../uib-update/{template.html => panel.html}  |   0
 4 files changed, 19 insertions(+), 187 deletions(-)
 rename src/editor/uib-update/editor.js => resources/uib-update.js (90%)
 rename src/editor/uib-update/{template.html => panel.html} (100%)

diff --git a/nodes/uib-update/customNode.html b/nodes/uib-update/customNode.html
index 13344e84..2456b694 100644
--- a/nodes/uib-update/customNode.html
+++ b/nodes/uib-update/customNode.html
@@ -1,5 +1,5 @@
 <!--
-    Copyright (c) 2023-2023 Julian Knight (Totally Information)
+    Copyright (c) 2023-2024 Julian Knight (Totally Information)
 
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.
@@ -16,6 +16,7 @@
 
 <link type="text/css" rel="stylesheet" href="./resources/node-red-contrib-uibuilder/ti-common.css" media="all">
 <script src="./resources/node-red-contrib-uibuilder/ti-common.js"></script>
+<script src="./resources/node-red-contrib-uibuilder/uib-update.js"></script>
 
 <script type="text/html" data-template-name="uib-update">
 <div id="ti-edit-panel">
@@ -188,174 +189,3 @@ <h3>Details</h3>
 </p>
 
 </script>
-
-<script type="text/javascript">
-    /* eslint-disable strict, sonarjs/no-duplicate-string */
-    
-    // Isolate this code
-    (function () {
-        'use strict'
-    
-        // const mylog = window['uibuilder'].log
-    
-        /** Module name must match this nodes html file @constant {string} moduleName */
-        const moduleName = 'uib-update'
-        /** Node's label @constant {string} paletteCategory */
-        const nodeLabel = moduleName
-        /** Node's palette category @constant {string} paletteCategory */
-        const paletteCategory  = window['uibuilder'].paletteCategory
-        /** Node's background color @constant {string} paletteColor */
-        const paletteColor  = 'var(--uib-node-colour)' // '#E6E0F8'
-    
-        const inputTypes = [
-            'msg', 'flow', 'global',
-            'str', 'num', 'bool', 'date',
-            'env', 'jsonata', 're', 'json',
-            // 'bin', 'cred',
-        ]
-        // Standard typed input types for string fields
-        const stdStrTypes = [
-            'msg', 'flow', 'global',
-            'str', 'env', 'jsonata', 're',
-        ]
-    
-        /** Prep for edit
-         * @param {*} node A node instance as seen from the Node-RED Editor
-         */
-        function onEditPrepare(node) {
-            if (!node.mode) {
-                node.mode = 'update'
-                // $('#node-input-mode').typedInput('value', 'update')
-            }
-            $('#node-input-slotPropMarkdown').prop('checked', node.slotPropMarkdown)
-    
-            // mode typed input - https://nodered.org/docs/api/ui/typedInput/
-            $('#node-input-mode').typedInput({
-                types: [
-                    {
-                        value: 'modeType',
-                        options: [
-                            {
-                                value: 'update',
-                                label: 'Update',
-                            },
-                            {
-                                value: 'delete',
-                                label: 'Delete',
-                            },
-                            {
-                                value: 'msg.mode',
-                                label: 'msg.mode',
-                            },
-                        ],
-                    }
-                ],
-                // typeField: $('#node-input-modeSourceType'),
-            })
-    
-            // css selector typed input - https://nodered.org/docs/api/ui/typedInput/
-            $('#node-input-cssSelector').typedInput({
-                types: stdStrTypes,
-                default: 'str',
-                typeField: $('#node-input-cssSelectorType'),
-            })
-    
-            // slotSourceProp typed input - https://nodered.org/docs/api/ui/typedInput/
-            $('#node-input-slotSourceProp').typedInput({
-                types: inputTypes,
-                default: 'msg',
-                typeField: $('#node-input-slotSourcePropType')
-            })
-    
-            $('#node-input-slotPropMarkdown').on('change', function() {
-                if ($(this).is(':checked') === false) {
-                    $('#slotPropMarkdown-unchecked').show()
-                    $('#slotPropMarkdown-checked').hide()
-                } else {
-                    $('#slotPropMarkdown-unchecked').hide()
-                    $('#slotPropMarkdown-checked').show()
-                }
-            })
-    
-            // attribsSource typed input - https://nodered.org/docs/api/ui/typedInput/
-            $('#node-input-attribsSource').typedInput({
-                types: ['msg', 'flow', 'global', 'json', 'jsonata',],
-                default: 'msg',
-                typeField: $('#node-input-attribsSourceType')
-            })
-    
-            window['tiDoTooltips']('#ti-edit-panel') // Do this at the end
-        } // ----- end of onEditPrepare() ----- //
-    
-        /** Validate a typed input as a string
-         * Must not be JSON. Can be a number only if allowNum=true. Can be an empty string only if allowBlank=true
-         * Sets typedInput border to red if not valid since custom validation not available on std typedInput types
-         * @param {string} value Input value
-         * @param {string} inpName Input field name
-         * @param {boolean} allowBlank true=allow blank string. Default=true
-         * @param {boolean} allowNum true=allow numeric input. Default=false
-         * @returns {boolean} True if valid
-         */
-        function tiValidateOptString(value, inpName, allowBlank = true, allowNum = false) {
-            let isValid = true
-            let f
-            try {
-                f = value.slice(0, 1)
-            } catch (e) {}
-    
-            if (allowBlank === false && value === '') {
-                isValid = false
-                // console.log({ name: inpName, why: 'Blank failed', value: value, allowBlank: allowBlank })
-            }
-    
-            if ( allowNum === false && (value !== '' && !isNaN(Number(value))) ) {
-                isValid = false
-                // console.log({ name: inpName, why: 'Num failed', value: value, allowNum: allowNum })
-            }
-    
-            if ( f === '{' || f === '[' ) isValid = false
-    
-            $(`#node-input-${inpName} + .red-ui-typedInput-container`).css('border-color', isValid ? 'var(--red-ui-form-input-border-color)' : 'red')
-            return isValid
-        }
-    
-        // @ts-ignore
-        RED.nodes.registerType(moduleName, {
-            category: paletteCategory,
-            color: paletteColor,
-            defaults: {
-                name: { value: '' },
-                topic: { value: '' },
-    
-                mode: { value: 'update', required: true },
-                modeSourceType: { value: 'update', required: true },
-    
-                cssSelector: { value: '', validate: (v) => tiValidateOptString(v, 'cssSelector', false, true) },
-                cssSelectorType: { value: 'str', required: true },
-    
-                slotSourceProp: { value: '', validate: (v) => tiValidateOptString(v, 'slotSourceProp', true, true) },
-                slotSourcePropType: { value: 'msg' },
-    
-                attribsSource: { value: '' },
-                attribsSourceType: { value: 'msg' },
-    
-                slotPropMarkdown: { value: false },
-    
-            },
-            align: 'left',
-            inputs: 1,
-            inputLabels: 'Source data',
-            outputs: 1,
-            outputLabels: ['uibuilder dynamic UI configuration'],
-            icon: 'pencilProgressWhiteSmaller.svg',
-            paletteLabel: nodeLabel,
-            label: function () {
-                return this.name || `${this.mode}${this.cssSelectorType === 'str' ? ` ${this.cssSelector.replace(/.*::/, '')}` : ''}`  || moduleName
-            },
-    
-            /** Prepares the Editor panel */
-            oneditprepare: function () { onEditPrepare(this) },
-        }) // ---- End of registerType() ---- //
-    }())
-    
-</script>
diff --git a/src/editor/uib-update/editor.js b/resources/uib-update.js
similarity index 90%
rename from src/editor/uib-update/editor.js
rename to resources/uib-update.js
index d3a06177..b0d8bb9f 100644
--- a/src/editor/uib-update/editor.js
+++ b/resources/uib-update.js
@@ -1,13 +1,19 @@
 /* eslint-disable strict, sonarjs/no-duplicate-string */
 
 // Isolate this code
-(function () {
+;(function () {
     'use strict'
 
-    // const mylog = window['uibuilder'].log
+    // NOTE: window.uibuilder is added - see `resources` folder
+
+    // RED._debug({topic: 'RED.settings', payload:RED.settings})
+
+    const uibuilder = window['uibuilder']
+    const log = uibuilder.log
 
     /** Module name must match this nodes html file @constant {string} moduleName */
     const moduleName = 'uib-update'
+
     /** Node's label @constant {string} paletteCategory */
     const nodeLabel = moduleName
     /** Node's palette category @constant {string} paletteCategory */
@@ -92,7 +98,7 @@
             typeField: $('#node-input-attribsSourceType')
         })
 
-        window['tiDoTooltips']('#ti-edit-panel') // Do this at the end
+        uibuilder.doTooltips('#ti-edit-panel') // Do this at the end
     } // ----- end of onEditPrepare() ----- //
 
     /** Validate a typed input as a string
@@ -129,8 +135,6 @@
 
     // @ts-ignore
     RED.nodes.registerType(moduleName, {
-        category: paletteCategory,
-        color: paletteColor,
         defaults: {
             name: { value: '' },
             topic: { value: '' },
@@ -141,14 +145,13 @@
             cssSelector: { value: '', validate: (v) => tiValidateOptString(v, 'cssSelector', false, true) },
             cssSelectorType: { value: 'str', required: true },
 
-            slotSourceProp: { value: '', validate: (v) => tiValidateOptString(v, 'slotSourceProp', true, true) },
+            slotSourceProp: { value: '', validate: () => true }, // allow anything including blank
             slotSourcePropType: { value: 'msg' },
 
-            attribsSource: { value: '' },
+            attribsSource: { value: '', validate: () => true },
             attribsSourceType: { value: 'msg' },
 
             slotPropMarkdown: { value: false },
-
         },
         align: 'left',
         inputs: 1,
@@ -156,10 +159,12 @@
         outputs: 1,
         outputLabels: ['uibuilder dynamic UI configuration'],
         icon: 'pencilProgressWhiteSmaller.svg',
-        paletteLabel: nodeLabel,
         label: function () {
             return this.name || `${this.mode}${this.cssSelectorType === 'str' ? ` ${this.cssSelector.replace(/.*::/, '')}` : ''}`  || moduleName
         },
+        paletteLabel: moduleName,
+        category: uibuilder.paletteCategory,
+        color: 'var(--uib-node-colour)', // '#E6E0F8'
 
         /** Prepares the Editor panel */
         oneditprepare: function () { onEditPrepare(this) },
diff --git a/src/editor/uib-update/main.html b/src/editor/uib-update/main.html
index a27f7019..5ba9d22f 100644
--- a/src/editor/uib-update/main.html
+++ b/src/editor/uib-update/main.html
@@ -1,5 +1,5 @@
 <!--
-    Copyright (c) 2023-2023 Julian Knight (Totally Information)
+    Copyright (c) 2023-2024 Julian Knight (Totally Information)
 
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.
@@ -16,15 +16,12 @@
 
 <link type="text/css" rel="stylesheet" href="./resources/node-red-contrib-uibuilder/ti-common.css" media="all">
 <script src="./resources/node-red-contrib-uibuilder/ti-common.js"></script>
+<script src="./resources/node-red-contrib-uibuilder/uib-update.js"></script>
 
 <script type="text/html" data-template-name="uib-update">
-<!--=include template.html -->
+<!--=include panel.html -->
 </script>
 
 <script type="text/html" data-help-name="uib-update">
 <!--=include help.html -->
 </script>
-
-<script type="text/javascript">
-    /*=include editor.js */  // eslint-disable-line spaced-comment
-</script>
diff --git a/src/editor/uib-update/template.html b/src/editor/uib-update/panel.html
similarity index 100%
rename from src/editor/uib-update/template.html
rename to src/editor/uib-update/panel.html

From 79f8b702b77fdb410de162b022f6f53a81585279 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Sat, 30 Dec 2023 14:00:08 +0000
Subject: [PATCH 58/78] Re-order utility fns alphabetically

---
 front-end/utils/uibrouter.esm.js          | 54 +++++++++++++-------
 front-end/utils/uibrouter.esm.min.js      |  4 +-
 front-end/utils/uibrouter.esm.min.js.map  |  6 +--
 front-end/utils/uibrouter.iife.js         | 54 +++++++++++++-------
 front-end/utils/uibrouter.iife.min.js     |  4 +-
 front-end/utils/uibrouter.iife.min.js.map |  6 +--
 src/front-end-module/uibrouter.js         | 60 +++++++++++++----------
 7 files changed, 114 insertions(+), 74 deletions(-)

diff --git a/front-end/utils/uibrouter.esm.js b/front-end/utils/uibrouter.esm.js
index 1ae81855..59a44bcb 100644
--- a/front-end/utils/uibrouter.esm.js
+++ b/front-end/utils/uibrouter.esm.js
@@ -31,7 +31,7 @@ var UibRouter = class {
   /** Class constructor
    * @param {UibRouterConfig} routerConfig Configuration object
    */
-  constructor(routerConfig) {
+  constructor(routerConfig2) {
     /** Configuration settings @type {UibRouterConfig} */
     __publicField(this, "config");
     /** Reference to the container DOM element - set in setup() @type {HTMLDivElement} */
@@ -40,19 +40,22 @@ var UibRouter = class {
     __publicField(this, "currentRouteId");
     /** The previous route id after doRoute() has been called */
     __publicField(this, "previousRouteId");
+    /** Array of route ID's (created in constructor) */
+    __publicField(this, "routeIds", []);
     /** Internal only. Set to true when the _start() method has been called */
     __privateAdd(this, _startDone, false);
     if (!fetch)
       throw new Error("[uibrouter:constructor] UibRouter requires `fetch`. Please use a current browser or load a fetch polyfill.");
-    if (!routerConfig)
+    if (!routerConfig2)
       throw new Error("[uibrouter:constructor] No config provided");
-    if (!routerConfig.routes)
+    if (!routerConfig2.routes)
       throw new Error("[uibrouter:constructor] No routes provided in routerConfig");
-    if (!routerConfig.routeContainer)
-      routerConfig.routeContainer = "#uibroutecontainer";
-    this.config = routerConfig;
+    if (!routerConfig2.routeContainer)
+      routerConfig2.routeContainer = "#uibroutecontainer";
+    this.config = routerConfig2;
     this._setRouteContainer();
-    Promise.all(Object.values(routerConfig.routes).filter((r) => r.type === "url").map(this._loadExternal)).then(this._appendExternalTemplates).then(() => {
+    this._updateRouteIds();
+    Promise.all(Object.values(routerConfig2.routes).filter((r) => r.type && r.type === "url").map(this._loadExternal)).then(this._appendExternalTemplates).then(() => {
       this._start();
     });
   }
@@ -163,6 +166,10 @@ var UibRouter = class {
       scr.remove();
     });
   }
+  /** Update this.routeIds array from this.config (on start and after add/remove routes) */
+  _updateRouteIds() {
+    this.routeIds = new Set(Object.values(routerConfig.routes).map((r) => r.id));
+  }
   //#endregion --- ----- --
   /** Process a routing request
    * @param {PointerEvent|MouseEvent|HashChangeEvent|TouchEvent|string} routeSource Either string containing route id or DOM Event object either click/touch on element containing `href="#routeid"` or Hash URL change event
@@ -200,7 +207,7 @@ var UibRouter = class {
       }
     }
     let routeShown = false;
-    if (!newRouteId || !this.routeList().includes(newRouteId)) {
+    if (!newRouteId || !this.routeIds.has(newRouteId)) {
       document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed", { detail: { newRouteId, oldRouteId } }));
       if (uibuilder)
         uibuilder.set("uibrouter", "route change failed");
@@ -239,7 +246,8 @@ var UibRouter = class {
     if (uibuilder) {
       uibuilder.set("uibrouter", "route changed");
       uibuilder.set("uibrouter_CurrentRoute", newRouteId);
-      uibuilder.set("uibrouter_CurrentHeading", this.routeHeading());
+      uibuilder.set("uibrouter_CurrentTitle", this.routeTitle());
+      uibuilder.set("uibrouter_CurrentDescription", this.routeDescription());
       uibuilder.set("uibrouter_CurrentDetails", this.getRouteConfigById(newRouteId));
     }
   }
@@ -264,6 +272,7 @@ var UibRouter = class {
     if (this.config.defaultRoute)
       this.doRoute(this.config.defaultRoute);
   }
+  /** Remove the hash from the browser URL */
   removeHash() {
     history.pushState("", document.title, window.location.pathname + window.location.search);
   }
@@ -286,17 +295,20 @@ var UibRouter = class {
    * @returns {string[]} Array of route id's or route url hashes
    */
   routeList(returnHash) {
-    return Object.values(this.config.routes).map((r) => returnHash === true ? `#${r.id}` : r.id);
+    if (returnHash === true)
+      return this.routeIds.map((r) => returnHash === true ? `#${r.id}` : r.id);
+    return this.routeIds;
   }
   /** Add new route definitions to the existing ones
-   * @param {routeDefinition|routeDefinition[]} routeConfig Single or array of route definitions to add
+   * @param {routeDefinition|routeDefinition[]} routeDefn Single or array of route definitions to add
    */
-  addRoutes(routeConfig) {
-    if (!Array.isArray(routeConfig))
-      routeConfig = [routeConfig];
-    Promise.all(Object.values(routeConfig).filter((r) => r.type === "url").map(this._loadExternal)).then(this._appendExternalTemplates).then(() => {
-      this.config.routes.push(...routeConfig);
-      document.dispatchEvent(new CustomEvent("uibrouter:routes-added", { detail: routeConfig }));
+  addRoutes(routeDefn) {
+    if (!Array.isArray(routeDefn))
+      routeDefn = [routeDefn];
+    Promise.all(Object.values(routeDefn).filter((r) => r.type && r.type === "url").map(this._loadExternal)).then(this._appendExternalTemplates).then(() => {
+      this.config.routes.push(...routeDefn);
+      this._updateRouteIds();
+      document.dispatchEvent(new CustomEvent("uibrouter:routes-added", { detail: routeDefn }));
       if (uibuilder)
         uibuilder.set("uibrouter", "routes added");
     });
@@ -314,9 +326,13 @@ var UibRouter = class {
       }
     });
   }
-  routeHeading() {
+  routeTitle() {
+    const thisRoute = this.currentRoute() || {};
+    return thisRoute.title || thisRoute.id || "[ROUTE NOT FOUND]";
+  }
+  routeDescription() {
     const thisRoute = this.currentRoute() || {};
-    return thisRoute.heading || thisRoute.title || thisRoute.description || thisRoute.id || "[ROUTE NOT FOUND]";
+    return thisRoute.description || thisRoute.id || "[ROUTE NOT FOUND]";
   }
   currentRoute() {
     return this.getRouteConfigById(this.currentRouteId);
diff --git a/front-end/utils/uibrouter.esm.min.js b/front-end/utils/uibrouter.esm.min.js
index fb64e484..d84cf39b 100644
--- a/front-end/utils/uibrouter.esm.min.js
+++ b/front-end/utils/uibrouter.esm.min.js
@@ -1,3 +1,3 @@
-var b=Object.defineProperty;var R=(i,e,t)=>e in i?b(i,e,{enumerable:!0,configurable:!0,writable:!0,value:t}):i[e]=t;var a=(i,e,t)=>(R(i,typeof e!="symbol"?e+"":e,t),t),h=(i,e,t)=>{if(!e.has(i))throw TypeError("Cannot "+t)};var f=(i,e,t)=>(h(i,e,"read from private field"),t?t.call(i):e.get(i)),p=(i,e,t)=>{if(e.has(i))throw TypeError("Cannot add the same private member more than once");e instanceof WeakSet?e.add(i):e.set(i,t)},m=(i,e,t,r)=>(h(i,e,"write to private field"),r?r.call(i,t):e.set(i,t),t);var d,s=class{constructor(e){a(this,"config");a(this,"routeContainerEl");a(this,"currentRouteId");a(this,"previousRouteId");p(this,d,!1);if(!fetch)throw new Error("[uibrouter:constructor] UibRouter requires `fetch`. Please use a current browser or load a fetch polyfill.");if(!e)throw new Error("[uibrouter:constructor] No config provided");if(!e.routes)throw new Error("[uibrouter:constructor] No routes provided in routerConfig");e.routeContainer||(e.routeContainer="#uibroutecontainer"),this.config=e,this._setRouteContainer(),Promise.all(Object.values(e.routes).filter(t=>t.type==="url").map(this._loadExternal)).then(this._appendExternalTemplates).then(()=>{this._start()})}_setRouteContainer(){let e=document.getElementsByTagName("body")[0],t=this.routeContainerEl=document.querySelector(this.config.routeContainer);if(!t){let r=document.createElement("div");r.setAttribute("id",this.config.routeContainer.replace("#","")),e.append(r),t=this.routeContainerEl=document.querySelector(this.config.routeContainer)}}_appendExternalTemplates(e){let t=document.getElementsByTagName("head")[0];e.forEach(r=>{Array.isArray(r)?console.error(...r):t.append(r)})}_start(){f(this,d)!==!0&&(window.addEventListener("hashchange",e=>this._hashChange(e)),this.doRoute(),document.dispatchEvent(new CustomEvent("uibrouter:loaded")),uibuilder&&uibuilder.set("uibrouter","loaded"),m(this,d,!0))}_hashChange(e){this.doRoute(e)}_createRouteContent(e){let t=document.querySelector(`#${e}`);if(!t)return console.error(`[uibrouter:createRouteContent] No route template found for route selector '#${e}'. Does the link url match a defined route id?`),!1;let r=t.content.cloneNode(!0);this.isRouteExternal(e)&&this._applyScripts(r);let o=document.createElement("div");o.dataset.route=e,o.append(r);try{this.routeContainerEl.append(o)}catch(n){return console.error(`[uibrouter:createRouteContent] Failed to apply route id '${e}'. 
- ${n.message}`),!1}return!0}_loadExternal(e){let t=e.id;return fetch(e.src).then(r=>r.ok===!1?[e.id,e.src,r.status,r.statusText]:r.text()).then(r=>{if(Array.isArray(r))return r;try{let n=document.querySelector(`#${t}`);n&&n.remove()}catch{}let o=document.createElement("template");return o.innerHTML=r,o.setAttribute("id",t),o}).catch(r=>{console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${e.src}:`,r)})}_applyScripts(e){e.querySelectorAll("script").forEach(r=>{let o=document.createElement("script");o.textContent=r.innerText,e.append(o),r.remove()})}doRoute(e){let t=this.routeContainerEl;if(!t)throw new Error("[uibrouter:doRoute] Cannot route, has router.setup() been called yet?");let r=this.keepHashFromUrl(window.location.hash);e||(e=r);let o,n;if(typeof e=="string"){if(o=this.keepHashFromUrl(e),n=r,o===""&&this.config.defaultRoute&&(o=this.config.defaultRoute),o!==r){window.location.hash=`#${o}`;return}}else if(e.type==="hashchange"){let u=e.newURL;if(u.includes("#"))n=this.keepHashFromUrl(e.oldURL),o=this.keepHashFromUrl(u);else return}else{n=r;try{o=this.keepHashFromUrl(e.target.attributes.href.value)}catch{throw new Error("[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute")}}let l=!1;if(!o||!this.routeList().includes(o))throw document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:n}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=n?`#${n}`:"",new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${o}'`);if(this.config.hide){if(n){let c=document.querySelector(`div[data-route="${n}"]`);c&&(c.style.display="none")}let u=document.querySelector(`div[data-route="${o}"]`);u?(u.style.removeProperty("display"),l=!0):l=this._createRouteContent(o)}else t.replaceChildren(),l=this._createRouteContent(o);if(l===!1){document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:n}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=n?`#${n}`:"";return}this.currentRouteId=o,this.previousRouteId=n,t.dataset.currentRoute=o,this.setCurrentMenuItems(),document.dispatchEvent(new CustomEvent("uibrouter:route-changed",{detail:{newRouteId:o,oldRouteId:n}})),uibuilder&&(uibuilder.set("uibrouter","route changed"),uibuilder.set("uibrouter_CurrentRoute",o),uibuilder.set("uibrouter_CurrentHeading",this.routeHeading()),uibuilder.set("uibrouter_CurrentDetails",this.getRouteConfigById(o)))}getRouteConfigById(e){return Object.values(this.config.routes).filter(t=>t.id===e)[0]}isRouteExternal(e){let t=this.getRouteConfigById(e);return!!(t&&t.type==="url")}defaultRoute(){this.config.defaultRoute&&this.doRoute(this.config.defaultRoute)}removeHash(){history.pushState("",document.title,window.location.pathname+window.location.search)}noRoute(){this.removeHash(),this.routeContainerEl.replaceChildren()}keepHashFromUrl(e){return e?e.replace(/^.*#(.*)/,"$1").replace(/\?.*$/,""):""}routeList(e){return Object.values(this.config.routes).map(t=>e===!0?`#${t.id}`:t.id)}addRoutes(e){Array.isArray(e)||(e=[e]),Promise.all(Object.values(e).filter(t=>t.type==="url").map(this._loadExternal)).then(this._appendExternalTemplates).then(()=>{this.config.routes.push(...e),document.dispatchEvent(new CustomEvent("uibrouter:routes-added",{detail:e})),uibuilder&&uibuilder.set("uibrouter","routes added")})}setCurrentMenuItems(){document.querySelectorAll("li[data-route]").forEach(t=>{t.dataset.route===this.currentRouteId?(t.classList.add("currentRoute"),t.setAttribute("aria-current","page")):(t.classList.remove("currentRoute"),t.removeAttribute("aria-current"))})}routeHeading(){let e=this.currentRoute()||{};return e.heading||e.title||e.description||e.id||"[ROUTE NOT FOUND]"}currentRoute(){return this.getRouteConfigById(this.currentRouteId)}};d=new WeakMap,a(s,"version","1.0.1");var w=s;window.UibRouter?console.warn("`UibRouter` already assigned to window. Have you tried to load it more than once?"):window.UibRouter=s;export{s as UibRouter,w as default};
+var b=Object.defineProperty;var R=(i,e,t)=>e in i?b(i,e,{enumerable:!0,configurable:!0,writable:!0,value:t}):i[e]=t;var n=(i,e,t)=>(R(i,typeof e!="symbol"?e+"":e,t),t),h=(i,e,t)=>{if(!e.has(i))throw TypeError("Cannot "+t)};var p=(i,e,t)=>(h(i,e,"read from private field"),t?t.call(i):e.get(i)),f=(i,e,t)=>{if(e.has(i))throw TypeError("Cannot add the same private member more than once");e instanceof WeakSet?e.add(i):e.set(i,t)},m=(i,e,t,r)=>(h(i,e,"write to private field"),r?r.call(i,t):e.set(i,t),t);var d,a=class{constructor(e){n(this,"config");n(this,"routeContainerEl");n(this,"currentRouteId");n(this,"previousRouteId");n(this,"routeIds",[]);f(this,d,!1);if(!fetch)throw new Error("[uibrouter:constructor] UibRouter requires `fetch`. Please use a current browser or load a fetch polyfill.");if(!e)throw new Error("[uibrouter:constructor] No config provided");if(!e.routes)throw new Error("[uibrouter:constructor] No routes provided in routerConfig");e.routeContainer||(e.routeContainer="#uibroutecontainer"),this.config=e,this._setRouteContainer(),this._updateRouteIds(),Promise.all(Object.values(e.routes).filter(t=>t.type&&t.type==="url").map(this._loadExternal)).then(this._appendExternalTemplates).then(()=>{this._start()})}_setRouteContainer(){let e=document.getElementsByTagName("body")[0],t=this.routeContainerEl=document.querySelector(this.config.routeContainer);if(!t){let r=document.createElement("div");r.setAttribute("id",this.config.routeContainer.replace("#","")),e.append(r),t=this.routeContainerEl=document.querySelector(this.config.routeContainer)}}_appendExternalTemplates(e){let t=document.getElementsByTagName("head")[0];e.forEach(r=>{Array.isArray(r)?console.error(...r):t.append(r)})}_start(){p(this,d)!==!0&&(window.addEventListener("hashchange",e=>this._hashChange(e)),this.doRoute(),document.dispatchEvent(new CustomEvent("uibrouter:loaded")),uibuilder&&uibuilder.set("uibrouter","loaded"),m(this,d,!0))}_hashChange(e){this.doRoute(e)}_createRouteContent(e){let t=document.querySelector(`#${e}`);if(!t)return console.error(`[uibrouter:createRouteContent] No route template found for route selector '#${e}'. Does the link url match a defined route id?`),!1;let r=t.content.cloneNode(!0);this.isRouteExternal(e)&&this._applyScripts(r);let o=document.createElement("div");o.dataset.route=e,o.append(r);try{this.routeContainerEl.append(o)}catch(u){return console.error(`[uibrouter:createRouteContent] Failed to apply route id '${e}'. 
+ ${u.message}`),!1}return!0}_loadExternal(e){let t=e.id;return fetch(e.src).then(r=>r.ok===!1?[e.id,e.src,r.status,r.statusText]:r.text()).then(r=>{if(Array.isArray(r))return r;try{let u=document.querySelector(`#${t}`);u&&u.remove()}catch{}let o=document.createElement("template");return o.innerHTML=r,o.setAttribute("id",t),o}).catch(r=>{console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${e.src}:`,r)})}_applyScripts(e){e.querySelectorAll("script").forEach(r=>{let o=document.createElement("script");o.textContent=r.innerText,e.append(o),r.remove()})}_updateRouteIds(){this.routeIds=new Set(Object.values(routerConfig.routes).map(e=>e.id))}doRoute(e){let t=this.routeContainerEl;if(!t)throw new Error("[uibrouter:doRoute] Cannot route, has router.setup() been called yet?");let r=this.keepHashFromUrl(window.location.hash);e||(e=r);let o,u;if(typeof e=="string"){if(o=this.keepHashFromUrl(e),u=r,o===""&&this.config.defaultRoute&&(o=this.config.defaultRoute),o!==r){window.location.hash=`#${o}`;return}}else if(e.type==="hashchange"){let s=e.newURL;if(s.includes("#"))u=this.keepHashFromUrl(e.oldURL),o=this.keepHashFromUrl(s);else return}else{u=r;try{o=this.keepHashFromUrl(e.target.attributes.href.value)}catch{throw new Error("[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute")}}let l=!1;if(!o||!this.routeIds.has(o))throw document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:u}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=u?`#${u}`:"",new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${o}'`);if(this.config.hide){if(u){let c=document.querySelector(`div[data-route="${u}"]`);c&&(c.style.display="none")}let s=document.querySelector(`div[data-route="${o}"]`);s?(s.style.removeProperty("display"),l=!0):l=this._createRouteContent(o)}else t.replaceChildren(),l=this._createRouteContent(o);if(l===!1){document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:u}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=u?`#${u}`:"";return}this.currentRouteId=o,this.previousRouteId=u,t.dataset.currentRoute=o,this.setCurrentMenuItems(),document.dispatchEvent(new CustomEvent("uibrouter:route-changed",{detail:{newRouteId:o,oldRouteId:u}})),uibuilder&&(uibuilder.set("uibrouter","route changed"),uibuilder.set("uibrouter_CurrentRoute",o),uibuilder.set("uibrouter_CurrentTitle",this.routeTitle()),uibuilder.set("uibrouter_CurrentDescription",this.routeDescription()),uibuilder.set("uibrouter_CurrentDetails",this.getRouteConfigById(o)))}getRouteConfigById(e){return Object.values(this.config.routes).filter(t=>t.id===e)[0]}isRouteExternal(e){let t=this.getRouteConfigById(e);return!!(t&&t.type==="url")}defaultRoute(){this.config.defaultRoute&&this.doRoute(this.config.defaultRoute)}removeHash(){history.pushState("",document.title,window.location.pathname+window.location.search)}noRoute(){this.removeHash(),this.routeContainerEl.replaceChildren()}keepHashFromUrl(e){return e?e.replace(/^.*#(.*)/,"$1").replace(/\?.*$/,""):""}routeList(e){return e===!0?this.routeIds.map(t=>e===!0?`#${t.id}`:t.id):this.routeIds}addRoutes(e){Array.isArray(e)||(e=[e]),Promise.all(Object.values(e).filter(t=>t.type&&t.type==="url").map(this._loadExternal)).then(this._appendExternalTemplates).then(()=>{this.config.routes.push(...e),this._updateRouteIds(),document.dispatchEvent(new CustomEvent("uibrouter:routes-added",{detail:e})),uibuilder&&uibuilder.set("uibrouter","routes added")})}setCurrentMenuItems(){document.querySelectorAll("li[data-route]").forEach(t=>{t.dataset.route===this.currentRouteId?(t.classList.add("currentRoute"),t.setAttribute("aria-current","page")):(t.classList.remove("currentRoute"),t.removeAttribute("aria-current"))})}routeTitle(){let e=this.currentRoute()||{};return e.title||e.id||"[ROUTE NOT FOUND]"}routeDescription(){let e=this.currentRoute()||{};return e.description||e.id||"[ROUTE NOT FOUND]"}currentRoute(){return this.getRouteConfigById(this.currentRouteId)}};d=new WeakMap,n(a,"version","1.0.1");var w=a;window.UibRouter?console.warn("`UibRouter` already assigned to window. Have you tried to load it more than once?"):window.UibRouter=a;export{a as UibRouter,w as default};
 //# sourceMappingURL=uibrouter.esm.min.js.map
diff --git a/front-end/utils/uibrouter.esm.min.js.map b/front-end/utils/uibrouter.esm.min.js.map
index 89a52992..2810d223 100644
--- a/front-end/utils/uibrouter.esm.min.js.map
+++ b/front-end/utils/uibrouter.esm.min.js.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
   "sources": ["src/front-end-module/uibrouter.js"],
-  "sourcesContent": ["/* eslint-disable no-undef */\n// @ts-nocheck\n/** A simple, vanilla JavaScript front-end router class\n * Included in node-red-contrib-uibuilder but is not dependent on it.\n * May be used in other contexts as desired.\n * \n * Copyright (c) 2023-2023 Julian Knight (Totally Information)\n * https://it.knightnet.org.uk\n *\n * Licensed under the Apache License, Version 2.0 (the 'License');\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an 'AS IS' BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/** ---------------------------------------------------------------------\n * TODO\n * Methods needed:\n *   Delete route\n *   Update/reload route\n *   shutdown - that removes all elements\n *   delete templates - unloads a list of (or all) templates\n *   reload templates - to facilitate updates of a list of (or all) templates\n * Additional options:\n *   unload templates after they are added to the route container. Only if hide=true. `unload: true`\n *   Maybe: options to auto-load js and css files with the same name as a template file.\n * ---------------------------------------------------------------------  */\n\n/** Type definitions\n * routeConfig\n * @typedef {object} routeDefinition Single route configuration\n * @property {string} id REQUIRED. Route ID\n * @property {string} src REQUIRED. CSS Selector for template tag routes, url for external routes\n * @property {\"url\"|undefined} [type] OPTIONAL. \"url\" for external routes\n * UibRouterConfig\n * @typedef {object} UibRouterConfig Configuration for the UiBRouter class instances\n * @property {routeDefinition[]} routes REQUIRED. Array of route definitions\n * @property {string} [defaultRoute] OPTIONAL. If set to a route id, that route will be automatically shown on load\n * @property {string} [routeContainer] OPTIONAL. CSS Selector for an HTML Element containing routes\n * @property {boolean} [hide] OPTIONAL. If TRUE, routes will be hidden/shown on change instead of removed/added\n * @property {boolean} [unload] OPTIONAL. If TRUE, route templates will be unloaded from DOM after access. Only useful with the `hide` option\n */\n\nclass UibRouter { // eslint-disable-line no-unused-vars\n    //#region --- Variables ---\n    /** Class version */\n    static version = '1.0.1'\n\n    /** Configuration settings @type {UibRouterConfig} */\n    config\n    /** Reference to the container DOM element - set in setup() @type {HTMLDivElement} */\n    routeContainerEl\n    /** The current route id after doRoute() has been called */\n    currentRouteId\n    /** The previous route id after doRoute() has been called */\n    previousRouteId\n\n    /** Internal only. Set to true when the _start() method has been called */\n    #startDone = false\n    //#endregion --- ----- ---\n\n    //#region --- Internal Methods ---\n    /** Class constructor\n     * @param {UibRouterConfig} routerConfig Configuration object\n     */\n    constructor(routerConfig) {\n        // Fetch is on desktop browsers since 2017 at latest. Not so much on mobile (Android!)\n        // May need a polyfill on mobile or old browsers.\n        if (!fetch) throw new Error('[uibrouter:constructor] UibRouter requires `fetch`. Please use a current browser or load a fetch polyfill.')\n\n        if (!routerConfig) throw new Error('[uibrouter:constructor] No config provided')\n        if (!routerConfig.routes) throw new Error('[uibrouter:constructor] No routes provided in routerConfig')\n        // Add a default route container uf needed\n        if (!routerConfig.routeContainer)routerConfig.routeContainer = '#uibroutecontainer'\n\n        // Save the config\n        this.config = routerConfig\n        // Create/access the route container element, sets this.routeContainerEl\n        this._setRouteContainer()\n\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routerConfig.routes).filter(r => r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded so we can start\n                this._start()\n            } )\n    }\n\n    /** Save a reference to, and create if necessary, the HTML element to hold routes */\n    _setRouteContainer() {\n        const body = document.getElementsByTagName('body')[0]\n        // Get reference to route container or create it\n        let routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        if (!routeContainerEl) {\n            // throw new Error(`Route container element with CSS selector '${routerConfig.routeContainer}' not found in HTML`)\n            const tempContainer = document.createElement('div')\n            tempContainer.setAttribute('id', this.config.routeContainer.replace('#', ''))\n            body.append(tempContainer)\n            routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        }\n    }\n\n    /** Load fetched external elements to templates tags under the head tag\n     * @param {HTMLElement[]} loadedElements Array of loaded external elements to add as templates to the head tag\n     */\n    _appendExternalTemplates(loadedElements) {\n        const head = document.getElementsByTagName('head')[0]\n        // Append the loaded content to the main container\n        loadedElements.forEach(element => {\n            if (Array.isArray(element)) {\n                console.error(...element)\n            } else {\n                head.append(element)\n            }\n        })\n    }\n\n    /** Called once all external templates have been loaded */\n    _start() {\n        if (this.#startDone === true) return // Don't run this again\n\n        // Listen for url hash changes and process route change\n        window.addEventListener('hashchange', (event) => this._hashChange(event) )\n        // Go to default route if no route in url and if a default is defined or ensure current route is shown\n        this.doRoute()\n        // Events on fully loaded ...\n        document.dispatchEvent(new CustomEvent('uibrouter:loaded'))\n        if (uibuilder) uibuilder.set('uibrouter', 'loaded') // eslint-disable-line no-undef\n\n        this.#startDone = true // Don't run this again\n    }\n\n    /** Called when the URL Hash changes\n     * @param {HashChangeEvent} event URL Hash change event object\n     */\n    _hashChange(event) {\n        // console.log(`[uibrouter] hashchange: ${this.keepHashFromUrl(event.oldURL)} => ${this.keepHashFromUrl(event.newURL)}` )\n        this.doRoute(event)\n    }\n\n    /** Create DOM route content from a route template (internal or external)\n     * Route templates have to be a `<template>` tag with an ID that matches the route id.\n     * @param {string} routeId ID of the route definition to use to create the content\n     * @returns {boolean} True if the route content was created successfully, false otherwise\n     */\n    _createRouteContent(routeId) {\n        const rContent = document.querySelector(`#${routeId}`)\n        if (!rContent) {\n            console.error(`[uibrouter:createRouteContent] No route template found for route selector '#${routeId}'. Does the link url match a defined route id?`)\n            return false\n        }\n        const docFrag = rContent.content.cloneNode(true)\n        // Have to re-apply the scripts to make them run - only for external templates\n        if (this.isRouteExternal(routeId)) this._applyScripts(docFrag)\n        // Create the route wrapper div with data-route attrib\n        const tempContainer = document.createElement('div')\n        tempContainer.dataset.route = routeId\n        tempContainer.append(docFrag)\n        // And finally try to append to the container\n        try {\n            this.routeContainerEl.append(tempContainer)\n        } catch (e) {\n            console.error(`[uibrouter:createRouteContent] Failed to apply route id '${routeId}'. \\n ${e.message}`)\n            return false\n        }\n        return true\n    }\n\n    /** Loads an external HTML file into a `<template>` tag, adding the router id as the template id.\n     *  or returns an error array\n     * @param {routeDefinition} routeDefinition Configuration for a single route\n     * @returns {Promise<HTMLTemplateElement[]|[string,string,number,string]>} A promise that fulfills to an HTMLTemplateElement or an array containing error information\n     */\n    _loadExternal(routeDefinition) {\n        // const id = singleConfig.src.split('/').pop().replace('.html','')\n        const id = routeDefinition.id\n        // @ts-ignore\n        return fetch(routeDefinition.src)\n            .then(response => {\n                // Fetch failed?\n                if (response.ok === false) return [routeDefinition.id, routeDefinition.src, response.status, response.statusText]\n                return response.text()\n            })\n            .then((/** @type {string} */ htmlText) => {\n                if (Array.isArray(htmlText)) return htmlText // if the fetch failed\n\n                // Check to see if template already exists, if so, remove it\n                try {\n                    const chkTemplate = document.querySelector(`#${id}`)\n                    if (chkTemplate) chkTemplate.remove()\n                } catch (e) {}\n\n                const tempContainer = document.createElement('template')\n                tempContainer.innerHTML = htmlText\n                tempContainer.setAttribute('id', id)\n                return tempContainer\n            })\n            .catch(error => {\n                console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${routeDefinition.src}:`, error)\n            })\n    }\n\n    /** Remove/re-apply scripts in a container Element so that they are executed.\n     * @param {HTMLElement} tempContainer HTML Element of container to process\n     */\n    _applyScripts(tempContainer) {\n        const scripts = tempContainer.querySelectorAll('script')\n        scripts.forEach( scr => {\n            const newScript = document.createElement('script')\n            newScript.textContent = scr.innerText\n            tempContainer.append(newScript)\n            scr.remove() // remove the origin\n        })\n    }\n    //#endregion --- ----- --\n\n    /** Process a routing request\n     * @param {PointerEvent|MouseEvent|HashChangeEvent|TouchEvent|string} routeSource Either string containing route id or DOM Event object either click/touch on element containing `href=\"#routeid\"` or Hash URL change event\n     */\n    doRoute(routeSource) {\n        const container = this.routeContainerEl\n        if (!container) throw new Error('[uibrouter:doRoute] Cannot route, has router.setup() been called yet?')\n\n        // Remove all the url and query param text and any leading # - returns '' if no current hash\n        const currentHash = this.keepHashFromUrl(window.location.hash)\n\n        // If no route source provided, take the current hash (which might be '' and that will trigger the default route if defined)\n        if (!routeSource) routeSource = currentHash\n\n        let newRouteId, oldRouteId\n\n        // Define new and old routes depending on different call types\n        if (typeof routeSource === 'string') { // Manually provided route id\n            // console.log(`[uibrouter:doRoute] manual: ${currentHash} => ${this.keepHashFromUrl(routeSource)}. Current: ${currentHash}` )\n            newRouteId = this.keepHashFromUrl(routeSource)\n            oldRouteId = currentHash\n            // If no hash & config has default, set the default as new\n            if (newRouteId === '' && this.config.defaultRoute) newRouteId = this.config.defaultRoute\n            // If the new route id not the same as the current one in the url hash, just change the current hash & exit\n            if (newRouteId !== currentHash ) {\n                window.location.hash = `#${newRouteId}`\n                return\n            }\n        } else if (routeSource.type === 'hashchange') { // A URL Hash change event\n            // console.log(`[uibrouter:doRoute] hashchange: ${this.keepHashFromUrl(routeSource.oldURL)} => ${this.keepHashFromUrl(routeSource.newURL)}. Current: ${currentHash}` )\n            const newUrl = routeSource.newURL\n            // Check if URL actually contains a #\n            if (newUrl.includes('#')) {\n                oldRouteId = this.keepHashFromUrl(routeSource.oldURL)\n                newRouteId = this.keepHashFromUrl(newUrl) // Only keep anything after the # & ignoring query params\n            } else return\n        } else { // A mouse click/touch event on a dom element with an href attribute\n            oldRouteId = currentHash\n            // Try to get the route name from the URL hash\n            try {\n                newRouteId = this.keepHashFromUrl(routeSource.target.attributes.href.value) // Only keep anything after the # & ignoring query params\n            } catch (e) {\n                throw new Error('[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute')\n            }\n        }\n\n        let routeShown = false\n\n        // If no defined valid route, undo and throw error\n        if (!newRouteId || !this.routeList().includes(newRouteId)) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            throw new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${newRouteId}'`)\n        }\n\n        // Show the new container (replace or show)\n        if (this.config.hide) {\n            // config.hide = true so hide previous contents\n            if (oldRouteId) {\n                /** @type {HTMLElement|null} */\n                const oldContent = document.querySelector(`div[data-route=\"${oldRouteId}\"]`)\n                if (oldContent) oldContent.style.display = 'none'\n            }\n            /** and unhide new route if possible @type {HTMLElement|null} */\n            const content = document.querySelector(`div[data-route=\"${newRouteId}\"]`)\n            if (content) {\n                content.style.removeProperty('display')\n                routeShown = true\n            } else {\n                // else create new content from template\n                routeShown = this._createRouteContent(newRouteId)\n            }\n        } else {\n            // config.hide != true so remove previous contents\n            container.replaceChildren()\n            // Create new content from template\n            routeShown = this._createRouteContent(newRouteId)\n        }\n\n        // console.log({ newRouteId, oldRouteId, currentHash, routeShown })\n\n        // Roll back the route change if the new route cannot be shown\n        if (routeShown === false) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            return\n        }\n\n        // Retain current and previous route id's\n        this.currentRouteId = newRouteId\n        this.previousRouteId = oldRouteId\n\n        // Record the current route on the route container\n        container.dataset.currentRoute = newRouteId\n\n        // Update any existing HTML menu items\n        this.setCurrentMenuItems()\n\n        // Events on route changed ...\n        document.dispatchEvent(new CustomEvent('uibrouter:route-changed', { detail: { newRouteId, oldRouteId } }))\n        if (uibuilder) {\n            uibuilder.set('uibrouter', 'route changed')\n            uibuilder.set('uibrouter_CurrentRoute', newRouteId)\n            uibuilder.set('uibrouter_CurrentHeading', this.routeHeading())\n            uibuilder.set('uibrouter_CurrentDetails', this.getRouteConfigById(newRouteId))\n        }\n    }\n\n    /** Return a route config given a route id (returns undefined if route not found)\n     * @param {string} routeId Route ID to search for\n     * @returns {routeDefinition|undefined} Route config for found id else undefined\n     */\n    getRouteConfigById(routeId) {\n        return Object.values(this.config.routes).filter(r => r.id === routeId)[0]\n    }\n\n    /** Return true if the given route is external, false otherwise\n     * Used to correctly (re)apply script tags when cloning the template to the DOM (createRouteContent)\n     * @param {string} routeId Route ID to check\n     * @returns {boolean} True if the given route is external, false otherwise\n     */\n    isRouteExternal(routeId) {\n        const routeConfig = this.getRouteConfigById(routeId)\n        return !!(routeConfig && routeConfig.type === 'url')\n    }\n\n    /** Go to the default route if it has been specified */\n    defaultRoute() {\n        if (this.config.defaultRoute) this.doRoute(this.config.defaultRoute)\n    }\n\n    removeHash() {\n        history.pushState('', document.title, window.location.pathname + window.location.search)\n    }\n\n    /** Empty the current container and remove url hash - does not trigger a route change */\n    noRoute() {\n        this.removeHash()\n        this.routeContainerEl.replaceChildren()\n    }\n\n    /** Only keep anything after the # & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Return an array of route ids (to facilitate creation of menus)\n     * @param {boolean} returnHash If true, returns id's with leading `#` to apply to href attributes else returns the id\n     * @returns {string[]} Array of route id's or route url hashes\n     */\n    routeList(returnHash) {\n        return Object.values(this.config.routes).map((r) => returnHash === true ? `#${r.id}` : r.id)\n    }\n\n    /** Add new route definitions to the existing ones\n     * @param {routeDefinition|routeDefinition[]} routeConfig Single or array of route definitions to add\n     */\n    addRoutes(routeConfig) {\n        if (!Array.isArray(routeConfig)) routeConfig = [routeConfig]\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routeConfig).filter(r => r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded - Add new routes to config\n                this.config.routes.push(...routeConfig)\n                // Let everyone know it all finished\n                document.dispatchEvent(new CustomEvent('uibrouter:routes-added', { detail: routeConfig }))\n                if (uibuilder) uibuilder.set('uibrouter', 'routes added') // eslint-disable-line no-undef, promise/always-return\n            } )\n    }\n\n    //#region --- utils for page display & processing ---\n    setCurrentMenuItems() {\n        // const items = document.querySelectorAll(`li[data-route=\"${this.currentRouteId}\"]`)\n        const items = document.querySelectorAll('li[data-route]')\n        items.forEach( item => {\n            if (item.dataset.route === this.currentRouteId) {\n                item.classList.add('currentRoute')\n                item.setAttribute('aria-current', 'page')\n            } else {\n                item.classList.remove('currentRoute')\n                item.removeAttribute('aria-current')\n            }\n        })\n    }\n\n    routeHeading() {\n        const thisRoute = this.currentRoute() || {}\n        return thisRoute.heading || thisRoute.title || thisRoute.description || thisRoute.id || '[ROUTE NOT FOUND]'\n    }\n\n    currentRoute() {\n        return this.getRouteConfigById(this.currentRouteId)\n    }\n    //#endregion ---- ----- ----\n\n    // TODO\n    // deleteRoutes(aRoutes) {\n    //     // Delete all if no list provided\n    //     if (!aRoutes) aRoutes = this.config.routes\n    //     if (!Array.isArray(aRoutes)) aRoutes = [aRoutes]\n    //     console.log('to be deleted', this.config.routes.filter(r => aRoutes.includes(r.id)))\n    //     console.log('to be retained', this.config.routes.filter(r => !aRoutes.includes(r.id)))\n\n    //     // TODO actually remove the unwanted route templates\n    //     // TODO remove from the config: this.config.routes = this.config.routes.filter(r => !aRoutes.includes(r.id))\n\n    //     // ? Optional future upgrade - attempt to also remove any links to this route?\n    // }\n\n    // TODO\n    // deleteTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO delete\n    //     } )\n    // }\n\n    // TODO\n    // reloadTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO reload\n    //     } )\n    // }\n} // ---- End of class ----\n\n// For use in ESM loads\nexport { UibRouter }\nexport default UibRouter\n\n// Auto-assign for when the library is loaded via a script tag\nif (!window['UibRouter']) {\n    window['UibRouter'] = UibRouter\n} else {\n    console.warn('`UibRouter` already assigned to window. Have you tried to load it more than once?')\n}\n"],
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-  "names": ["_startDone", "UibRouter", "routerConfig", "__publicField", "__privateAdd", "r", "body", "routeContainerEl", "tempContainer", "loadedElements", "head", "element", "__privateGet", "event", "__privateSet", "routeId", "rContent", "docFrag", "e", "routeDefinition", "id", "response", "htmlText", "chkTemplate", "error", "scr", "newScript", "routeSource", "container", "currentHash", "newRouteId", "oldRouteId", "newUrl", "routeShown", "oldContent", "content", "routeConfig", "url", "returnHash", "item", "thisRoute", "uibrouter_default", "UibRouter"]
+  "sourcesContent": ["/* eslint-disable no-undef */\n// @ts-nocheck\n/** A simple, vanilla JavaScript front-end router class\n * Included in node-red-contrib-uibuilder but is not dependent on it.\n * May be used in other contexts as desired.\n * \n * Copyright (c) 2023-2023 Julian Knight (Totally Information)\n * https://it.knightnet.org.uk\n *\n * Licensed under the Apache License, Version 2.0 (the 'License');\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an 'AS IS' BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/** Type definitions\n * routeDefinition\n * @typedef {object} routeDefinition Single route configuration\n * @property {string} id REQUIRED. Route ID\n * @property {string} src REQUIRED. CSS Selector for template tag routes, url for external routes\n * @property {\"url\"|undefined} [type] OPTIONAL. \"url\" for external routes\n * @property {string} [title] OPTIONAL. Text to use as a short title for the route\n * @property {string} [description] OPTIONAL. Text to use as a long description for the route\n * UibRouterConfig\n * @typedef {object} UibRouterConfig Configuration for the UiBRouter class instances\n * @property {routeDefinition[]} routes REQUIRED. Array of route definitions\n * @property {string} [defaultRoute] OPTIONAL. If set to a route id, that route will be automatically shown on load\n * @property {string} [routeContainer] OPTIONAL. CSS Selector for an HTML Element containing routes\n * @property {boolean} [hide] OPTIONAL. If TRUE, routes will be hidden/shown on change instead of removed/added\n * @property {boolean} [unload] OPTIONAL. If TRUE, route templates will be unloaded from DOM after access. Only useful with the `hide` option\n */\n\nclass UibRouter { // eslint-disable-line no-unused-vars\n    //#region --- Variables ---\n    /** Class version */\n    static version = '1.0.1'\n\n    /** Configuration settings @type {UibRouterConfig} */\n    config\n    /** Reference to the container DOM element - set in setup() @type {HTMLDivElement} */\n    routeContainerEl\n    /** The current route id after doRoute() has been called */\n    currentRouteId\n    /** The previous route id after doRoute() has been called */\n    previousRouteId\n    /** Array of route ID's (created in constructor) */\n    routeIds = []\n\n    /** Internal only. Set to true when the _start() method has been called */\n    #startDone = false\n    //#endregion --- ----- ---\n\n    //#region --- Internal Methods ---\n    /** Class constructor\n     * @param {UibRouterConfig} routerConfig Configuration object\n     */\n    constructor(routerConfig) {\n        // Fetch is on desktop browsers since 2017 at latest. Not so much on mobile (Android!)\n        // May need a polyfill on mobile or old browsers.\n        if (!fetch) throw new Error('[uibrouter:constructor] UibRouter requires `fetch`. Please use a current browser or load a fetch polyfill.')\n\n        if (!routerConfig) throw new Error('[uibrouter:constructor] No config provided')\n        if (!routerConfig.routes) throw new Error('[uibrouter:constructor] No routes provided in routerConfig')\n        // Add a default route container uf needed\n        if (!routerConfig.routeContainer)routerConfig.routeContainer = '#uibroutecontainer'\n\n        // Save the config\n        this.config = routerConfig\n        // Create/access the route container element, sets this.routeContainerEl\n        this._setRouteContainer()\n\n        this._updateRouteIds()\n\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routerConfig.routes).filter(r => r.type && r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded so we can start\n                this._start()\n            } )\n    }\n\n    /** Save a reference to, and create if necessary, the HTML element to hold routes */\n    _setRouteContainer() {\n        const body = document.getElementsByTagName('body')[0]\n        // Get reference to route container or create it\n        let routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        if (!routeContainerEl) {\n            // throw new Error(`Route container element with CSS selector '${routerConfig.routeContainer}' not found in HTML`)\n            const tempContainer = document.createElement('div')\n            tempContainer.setAttribute('id', this.config.routeContainer.replace('#', ''))\n            body.append(tempContainer)\n            routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        }\n    }\n\n    /** Load fetched external elements to templates tags under the head tag\n     * @param {HTMLElement[]} loadedElements Array of loaded external elements to add as templates to the head tag\n     */\n    _appendExternalTemplates(loadedElements) {\n        const head = document.getElementsByTagName('head')[0]\n        // Append the loaded content to the main container\n        loadedElements.forEach(element => {\n            if (Array.isArray(element)) {\n                console.error(...element)\n            } else {\n                head.append(element)\n            }\n        })\n    }\n\n    /** Called once all external templates have been loaded */\n    _start() {\n        if (this.#startDone === true) return // Don't run this again\n\n        // Listen for url hash changes and process route change\n        window.addEventListener('hashchange', (event) => this._hashChange(event) )\n        // Go to default route if no route in url and if a default is defined or ensure current route is shown\n        this.doRoute()\n        // Events on fully loaded ...\n        document.dispatchEvent(new CustomEvent('uibrouter:loaded'))\n        if (uibuilder) uibuilder.set('uibrouter', 'loaded') // eslint-disable-line no-undef\n\n        this.#startDone = true // Don't run this again\n    }\n\n    /** Called when the URL Hash changes\n     * @param {HashChangeEvent} event URL Hash change event object\n     */\n    _hashChange(event) {\n        // console.log(`[uibrouter] hashchange: ${this.keepHashFromUrl(event.oldURL)} => ${this.keepHashFromUrl(event.newURL)}` )\n        this.doRoute(event)\n    }\n\n    /** Create DOM route content from a route template (internal or external)\n     * Route templates have to be a `<template>` tag with an ID that matches the route id.\n     * @param {string} routeId ID of the route definition to use to create the content\n     * @returns {boolean} True if the route content was created successfully, false otherwise\n     */\n    _createRouteContent(routeId) {\n        const rContent = document.querySelector(`#${routeId}`)\n        if (!rContent) {\n            console.error(`[uibrouter:createRouteContent] No route template found for route selector '#${routeId}'. Does the link url match a defined route id?`)\n            return false\n        }\n        const docFrag = rContent.content.cloneNode(true)\n        // Have to re-apply the scripts to make them run - only for external templates\n        if (this.isRouteExternal(routeId)) this._applyScripts(docFrag)\n        // Create the route wrapper div with data-route attrib\n        const tempContainer = document.createElement('div')\n        tempContainer.dataset.route = routeId\n        tempContainer.append(docFrag)\n        // And finally try to append to the container\n        try {\n            this.routeContainerEl.append(tempContainer)\n        } catch (e) {\n            console.error(`[uibrouter:createRouteContent] Failed to apply route id '${routeId}'. \\n ${e.message}`)\n            return false\n        }\n        return true\n    }\n\n    /** Loads an external HTML file into a `<template>` tag, adding the router id as the template id.\n     *  or returns an error array\n     * @param {routeDefinition} routeDefinition Configuration for a single route\n     * @returns {Promise<HTMLTemplateElement[]|[string,string,number,string]>} A promise that fulfills to an HTMLTemplateElement or an array containing error information\n     */\n    _loadExternal(routeDefinition) {\n        // const id = singleConfig.src.split('/').pop().replace('.html','')\n        const id = routeDefinition.id\n        // @ts-ignore\n        return fetch(routeDefinition.src)\n            .then(response => {\n                // Fetch failed?\n                if (response.ok === false) return [routeDefinition.id, routeDefinition.src, response.status, response.statusText]\n                return response.text()\n            })\n            .then((/** @type {string} */ htmlText) => {\n                if (Array.isArray(htmlText)) return htmlText // if the fetch failed\n\n                // Check to see if template already exists, if so, remove it\n                try {\n                    const chkTemplate = document.querySelector(`#${id}`)\n                    if (chkTemplate) chkTemplate.remove()\n                } catch (e) {}\n\n                const tempContainer = document.createElement('template')\n                tempContainer.innerHTML = htmlText\n                tempContainer.setAttribute('id', id)\n                return tempContainer\n            })\n            .catch(error => {\n                console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${routeDefinition.src}:`, error)\n            })\n    }\n\n    /** Remove/re-apply scripts in a container Element so that they are executed.\n     * @param {HTMLElement} tempContainer HTML Element of container to process\n     */\n    _applyScripts(tempContainer) {\n        const scripts = tempContainer.querySelectorAll('script')\n        scripts.forEach( scr => {\n            const newScript = document.createElement('script')\n            newScript.textContent = scr.innerText\n            tempContainer.append(newScript)\n            scr.remove() // remove the origin\n        })\n    }\n\n    /** Update this.routeIds array from this.config (on start and after add/remove routes) */\n    _updateRouteIds() {\n        this.routeIds = new Set(Object.values(routerConfig.routes).map( r => r.id ))\n    }\n    //#endregion --- ----- --\n\n    /** Process a routing request\n     * @param {PointerEvent|MouseEvent|HashChangeEvent|TouchEvent|string} routeSource Either string containing route id or DOM Event object either click/touch on element containing `href=\"#routeid\"` or Hash URL change event\n     */\n    doRoute(routeSource) {\n        const container = this.routeContainerEl\n        if (!container) throw new Error('[uibrouter:doRoute] Cannot route, has router.setup() been called yet?')\n\n        // Remove all the url and query param text and any leading # - returns '' if no current hash\n        const currentHash = this.keepHashFromUrl(window.location.hash)\n\n        // If no route source provided, take the current hash (which might be '' and that will trigger the default route if defined)\n        if (!routeSource) routeSource = currentHash\n\n        let newRouteId, oldRouteId\n\n        // Define new and old routes depending on different call types\n        if (typeof routeSource === 'string') { // Manually provided route id\n            // console.log(`[uibrouter:doRoute] manual: ${currentHash} => ${this.keepHashFromUrl(routeSource)}. Current: ${currentHash}` )\n            newRouteId = this.keepHashFromUrl(routeSource)\n            oldRouteId = currentHash\n            // If no hash & config has default, set the default as new\n            if (newRouteId === '' && this.config.defaultRoute) newRouteId = this.config.defaultRoute\n            // If the new route id not the same as the current one in the url hash, just change the current hash & exit\n            if (newRouteId !== currentHash ) {\n                window.location.hash = `#${newRouteId}`\n                return\n            }\n        } else if (routeSource.type === 'hashchange') { // A URL Hash change event\n            // console.log(`[uibrouter:doRoute] hashchange: ${this.keepHashFromUrl(routeSource.oldURL)} => ${this.keepHashFromUrl(routeSource.newURL)}. Current: ${currentHash}` )\n            const newUrl = routeSource.newURL\n            // Check if URL actually contains a #\n            if (newUrl.includes('#')) {\n                oldRouteId = this.keepHashFromUrl(routeSource.oldURL)\n                newRouteId = this.keepHashFromUrl(newUrl) // Only keep anything after the # & ignoring query params\n            } else return\n        } else { // A mouse click/touch event on a dom element with an href attribute\n            oldRouteId = currentHash\n            // Try to get the route name from the URL hash\n            try {\n                newRouteId = this.keepHashFromUrl(routeSource.target.attributes.href.value) // Only keep anything after the # & ignoring query params\n            } catch (e) {\n                throw new Error('[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute')\n            }\n        }\n\n        let routeShown = false\n\n        // If no defined valid route, undo and throw error\n        if (!newRouteId || !this.routeIds.has(newRouteId)) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            throw new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${newRouteId}'`)\n        }\n\n        // Show the new container (replace or show)\n        if (this.config.hide) {\n            // config.hide = true so hide previous contents\n            if (oldRouteId) {\n                /** @type {HTMLElement|null} */\n                const oldContent = document.querySelector(`div[data-route=\"${oldRouteId}\"]`)\n                if (oldContent) oldContent.style.display = 'none'\n            }\n            /** and unhide new route if possible @type {HTMLElement|null} */\n            const content = document.querySelector(`div[data-route=\"${newRouteId}\"]`)\n            if (content) {\n                content.style.removeProperty('display')\n                routeShown = true\n            } else {\n                // else create new content from template\n                routeShown = this._createRouteContent(newRouteId)\n            }\n        } else {\n            // config.hide != true so remove previous contents\n            container.replaceChildren()\n            // Create new content from template\n            routeShown = this._createRouteContent(newRouteId)\n        }\n\n        // console.log({ newRouteId, oldRouteId, currentHash, routeShown })\n\n        // Roll back the route change if the new route cannot be shown\n        if (routeShown === false) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            return\n        }\n\n        // Retain current and previous route id's\n        this.currentRouteId = newRouteId\n        this.previousRouteId = oldRouteId\n\n        // Record the current route on the route container\n        container.dataset.currentRoute = newRouteId\n\n        // Update any existing HTML menu items\n        this.setCurrentMenuItems()\n\n        // Events on route changed ...\n        document.dispatchEvent(new CustomEvent('uibrouter:route-changed', { detail: { newRouteId, oldRouteId } }))\n        if (uibuilder) {\n            uibuilder.set('uibrouter', 'route changed')\n            uibuilder.set('uibrouter_CurrentRoute', newRouteId)\n            uibuilder.set('uibrouter_CurrentTitle', this.routeTitle())\n            uibuilder.set('uibrouter_CurrentDescription', this.routeDescription())\n            uibuilder.set('uibrouter_CurrentDetails', this.getRouteConfigById(newRouteId))\n        }\n    }\n\n    /** Return a route config given a route id (returns undefined if route not found)\n     * @param {string} routeId Route ID to search for\n     * @returns {routeDefinition|undefined} Route config for found id else undefined\n     */\n    getRouteConfigById(routeId) {\n        return Object.values(this.config.routes).filter(r => r.id === routeId)[0]\n    }\n\n    /** Return true if the given route is external, false otherwise\n     * Used to correctly (re)apply script tags when cloning the template to the DOM (createRouteContent)\n     * @param {string} routeId Route ID to check\n     * @returns {boolean} True if the given route is external, false otherwise\n     */\n    isRouteExternal(routeId) {\n        const routeConfig = this.getRouteConfigById(routeId)\n        return !!(routeConfig && routeConfig.type === 'url')\n    }\n\n    /** Go to the default route if it has been specified */\n    defaultRoute() {\n        if (this.config.defaultRoute) this.doRoute(this.config.defaultRoute)\n    }\n\n    /** Remove the hash from the browser URL */\n    removeHash() {\n        history.pushState('', document.title, window.location.pathname + window.location.search)\n    }\n\n    /** Empty the current container and remove url hash - does not trigger a route change */\n    noRoute() {\n        this.removeHash()\n        this.routeContainerEl.replaceChildren()\n    }\n\n    /** Only keep anything after the # & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Return an array of route ids (to facilitate creation of menus)\n     * @param {boolean} returnHash If true, returns id's with leading `#` to apply to href attributes else returns the id\n     * @returns {string[]} Array of route id's or route url hashes\n     */\n    routeList(returnHash) {\n        if (returnHash === true) return this.routeIds.map((r) => returnHash === true ? `#${r.id}` : r.id)\n        return this.routeIds\n    }\n\n    /** Add new route definitions to the existing ones\n     * @param {routeDefinition|routeDefinition[]} routeDefn Single or array of route definitions to add\n     */\n    addRoutes(routeDefn) {\n        if (!Array.isArray(routeDefn)) routeDefn = [routeDefn]\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routeDefn).filter(r => r.type && r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded - Add new routes to config\n                this.config.routes.push(...routeDefn)\n                // and update the routeIds list\n                this._updateRouteIds()\n                // Let everyone know it all finished\n                document.dispatchEvent(new CustomEvent('uibrouter:routes-added', { detail: routeDefn }))\n                if (uibuilder) uibuilder.set('uibrouter', 'routes added') // eslint-disable-line no-undef, promise/always-return\n            } )\n    }\n\n    //#region --- utils for page display & processing ---\n    setCurrentMenuItems() {\n        // const items = document.querySelectorAll(`li[data-route=\"${this.currentRouteId}\"]`)\n        const items = document.querySelectorAll('li[data-route]')\n        items.forEach( item => {\n            if (item.dataset.route === this.currentRouteId) {\n                item.classList.add('currentRoute')\n                item.setAttribute('aria-current', 'page')\n            } else {\n                item.classList.remove('currentRoute')\n                item.removeAttribute('aria-current')\n            }\n        })\n    }\n\n    routeTitle() {\n        const thisRoute = this.currentRoute() || {}\n        return thisRoute.title || thisRoute.id || '[ROUTE NOT FOUND]'\n    }\n\n    routeDescription() {\n        const thisRoute = this.currentRoute() || {}\n        return thisRoute.description || thisRoute.id || '[ROUTE NOT FOUND]'\n    }\n\n    currentRoute() {\n        return this.getRouteConfigById(this.currentRouteId)\n    }\n    //#endregion ---- ----- ----\n\n    // TODO\n    // deleteRoutes(aRoutes) {\n    //     // Delete all if no list provided\n    //     if (!aRoutes) aRoutes = this.config.routes\n    //     if (!Array.isArray(aRoutes)) aRoutes = [aRoutes]\n    //     console.log('to be deleted', this.config.routes.filter(r => aRoutes.includes(r.id)))\n    //     console.log('to be retained', this.config.routes.filter(r => !aRoutes.includes(r.id)))\n\n    //     // TODO actually remove the unwanted route templates\n    //     // TODO remove from the config: this.config.routes = this.config.routes.filter(r => !aRoutes.includes(r.id))\n\n    //     // ? Optional future upgrade - attempt to also remove any links to this route?\n    // }\n\n    // TODO\n    // deleteTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO delete\n    //     } )\n    // }\n\n    // TODO\n    // reloadTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO reload\n    //     } )\n    // }\n} // ---- End of class ----\n\n// For use in ESM loads\nexport { UibRouter }\nexport default UibRouter\n\n// Auto-assign for when the library is loaded via a script tag\nif (!window['UibRouter']) {\n    window['UibRouter'] = UibRouter\n} else {\n    console.warn('`UibRouter` already assigned to window. Have you tried to load it more than once?')\n}\n"],
+  "mappings": 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+  "names": ["_startDone", "UibRouter", "routerConfig", "__publicField", "__privateAdd", "r", "body", "routeContainerEl", "tempContainer", "loadedElements", "head", "element", "__privateGet", "event", "__privateSet", "routeId", "rContent", "docFrag", "e", "routeDefinition", "id", "response", "htmlText", "chkTemplate", "error", "scr", "newScript", "routeSource", "container", "currentHash", "newRouteId", "oldRouteId", "newUrl", "routeShown", "oldContent", "content", "routeConfig", "url", "returnHash", "routeDefn", "item", "thisRoute", "uibrouter_default", "UibRouter"]
 }
diff --git a/front-end/utils/uibrouter.iife.js b/front-end/utils/uibrouter.iife.js
index ccd3b4d5..701e2d41 100644
--- a/front-end/utils/uibrouter.iife.js
+++ b/front-end/utils/uibrouter.iife.js
@@ -32,7 +32,7 @@
     /** Class constructor
      * @param {UibRouterConfig} routerConfig Configuration object
      */
-    constructor(routerConfig) {
+    constructor(routerConfig2) {
       /** Configuration settings @type {UibRouterConfig} */
       __publicField(this, "config");
       /** Reference to the container DOM element - set in setup() @type {HTMLDivElement} */
@@ -41,19 +41,22 @@
       __publicField(this, "currentRouteId");
       /** The previous route id after doRoute() has been called */
       __publicField(this, "previousRouteId");
+      /** Array of route ID's (created in constructor) */
+      __publicField(this, "routeIds", []);
       /** Internal only. Set to true when the _start() method has been called */
       __privateAdd(this, _startDone, false);
       if (!fetch)
         throw new Error("[uibrouter:constructor] UibRouter requires `fetch`. Please use a current browser or load a fetch polyfill.");
-      if (!routerConfig)
+      if (!routerConfig2)
         throw new Error("[uibrouter:constructor] No config provided");
-      if (!routerConfig.routes)
+      if (!routerConfig2.routes)
         throw new Error("[uibrouter:constructor] No routes provided in routerConfig");
-      if (!routerConfig.routeContainer)
-        routerConfig.routeContainer = "#uibroutecontainer";
-      this.config = routerConfig;
+      if (!routerConfig2.routeContainer)
+        routerConfig2.routeContainer = "#uibroutecontainer";
+      this.config = routerConfig2;
       this._setRouteContainer();
-      Promise.all(Object.values(routerConfig.routes).filter((r) => r.type === "url").map(this._loadExternal)).then(this._appendExternalTemplates).then(() => {
+      this._updateRouteIds();
+      Promise.all(Object.values(routerConfig2.routes).filter((r) => r.type && r.type === "url").map(this._loadExternal)).then(this._appendExternalTemplates).then(() => {
         this._start();
       });
     }
@@ -164,6 +167,10 @@
         scr.remove();
       });
     }
+    /** Update this.routeIds array from this.config (on start and after add/remove routes) */
+    _updateRouteIds() {
+      this.routeIds = new Set(Object.values(routerConfig.routes).map((r) => r.id));
+    }
     //#endregion --- ----- --
     /** Process a routing request
      * @param {PointerEvent|MouseEvent|HashChangeEvent|TouchEvent|string} routeSource Either string containing route id or DOM Event object either click/touch on element containing `href="#routeid"` or Hash URL change event
@@ -201,7 +208,7 @@
         }
       }
       let routeShown = false;
-      if (!newRouteId || !this.routeList().includes(newRouteId)) {
+      if (!newRouteId || !this.routeIds.has(newRouteId)) {
         document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed", { detail: { newRouteId, oldRouteId } }));
         if (uibuilder)
           uibuilder.set("uibrouter", "route change failed");
@@ -240,7 +247,8 @@
       if (uibuilder) {
         uibuilder.set("uibrouter", "route changed");
         uibuilder.set("uibrouter_CurrentRoute", newRouteId);
-        uibuilder.set("uibrouter_CurrentHeading", this.routeHeading());
+        uibuilder.set("uibrouter_CurrentTitle", this.routeTitle());
+        uibuilder.set("uibrouter_CurrentDescription", this.routeDescription());
         uibuilder.set("uibrouter_CurrentDetails", this.getRouteConfigById(newRouteId));
       }
     }
@@ -265,6 +273,7 @@
       if (this.config.defaultRoute)
         this.doRoute(this.config.defaultRoute);
     }
+    /** Remove the hash from the browser URL */
     removeHash() {
       history.pushState("", document.title, window.location.pathname + window.location.search);
     }
@@ -287,17 +296,20 @@
      * @returns {string[]} Array of route id's or route url hashes
      */
     routeList(returnHash) {
-      return Object.values(this.config.routes).map((r) => returnHash === true ? `#${r.id}` : r.id);
+      if (returnHash === true)
+        return this.routeIds.map((r) => returnHash === true ? `#${r.id}` : r.id);
+      return this.routeIds;
     }
     /** Add new route definitions to the existing ones
-     * @param {routeDefinition|routeDefinition[]} routeConfig Single or array of route definitions to add
+     * @param {routeDefinition|routeDefinition[]} routeDefn Single or array of route definitions to add
      */
-    addRoutes(routeConfig) {
-      if (!Array.isArray(routeConfig))
-        routeConfig = [routeConfig];
-      Promise.all(Object.values(routeConfig).filter((r) => r.type === "url").map(this._loadExternal)).then(this._appendExternalTemplates).then(() => {
-        this.config.routes.push(...routeConfig);
-        document.dispatchEvent(new CustomEvent("uibrouter:routes-added", { detail: routeConfig }));
+    addRoutes(routeDefn) {
+      if (!Array.isArray(routeDefn))
+        routeDefn = [routeDefn];
+      Promise.all(Object.values(routeDefn).filter((r) => r.type && r.type === "url").map(this._loadExternal)).then(this._appendExternalTemplates).then(() => {
+        this.config.routes.push(...routeDefn);
+        this._updateRouteIds();
+        document.dispatchEvent(new CustomEvent("uibrouter:routes-added", { detail: routeDefn }));
         if (uibuilder)
           uibuilder.set("uibrouter", "routes added");
       });
@@ -315,9 +327,13 @@
         }
       });
     }
-    routeHeading() {
+    routeTitle() {
+      const thisRoute = this.currentRoute() || {};
+      return thisRoute.title || thisRoute.id || "[ROUTE NOT FOUND]";
+    }
+    routeDescription() {
       const thisRoute = this.currentRoute() || {};
-      return thisRoute.heading || thisRoute.title || thisRoute.description || thisRoute.id || "[ROUTE NOT FOUND]";
+      return thisRoute.description || thisRoute.id || "[ROUTE NOT FOUND]";
     }
     currentRoute() {
       return this.getRouteConfigById(this.currentRouteId);
diff --git a/front-end/utils/uibrouter.iife.min.js b/front-end/utils/uibrouter.iife.min.js
index 22919c56..90ebac54 100644
--- a/front-end/utils/uibrouter.iife.min.js
+++ b/front-end/utils/uibrouter.iife.min.js
@@ -1,3 +1,3 @@
-(()=>{var b=Object.defineProperty;var R=(i,e,t)=>e in i?b(i,e,{enumerable:!0,configurable:!0,writable:!0,value:t}):i[e]=t;var a=(i,e,t)=>(R(i,typeof e!="symbol"?e+"":e,t),t),h=(i,e,t)=>{if(!e.has(i))throw TypeError("Cannot "+t)};var f=(i,e,t)=>(h(i,e,"read from private field"),t?t.call(i):e.get(i)),p=(i,e,t)=>{if(e.has(i))throw TypeError("Cannot add the same private member more than once");e instanceof WeakSet?e.add(i):e.set(i,t)},m=(i,e,t,r)=>(h(i,e,"write to private field"),r?r.call(i,t):e.set(i,t),t);var d,s=class{constructor(e){a(this,"config");a(this,"routeContainerEl");a(this,"currentRouteId");a(this,"previousRouteId");p(this,d,!1);if(!fetch)throw new Error("[uibrouter:constructor] UibRouter requires `fetch`. Please use a current browser or load a fetch polyfill.");if(!e)throw new Error("[uibrouter:constructor] No config provided");if(!e.routes)throw new Error("[uibrouter:constructor] No routes provided in routerConfig");e.routeContainer||(e.routeContainer="#uibroutecontainer"),this.config=e,this._setRouteContainer(),Promise.all(Object.values(e.routes).filter(t=>t.type==="url").map(this._loadExternal)).then(this._appendExternalTemplates).then(()=>{this._start()})}_setRouteContainer(){let e=document.getElementsByTagName("body")[0],t=this.routeContainerEl=document.querySelector(this.config.routeContainer);if(!t){let r=document.createElement("div");r.setAttribute("id",this.config.routeContainer.replace("#","")),e.append(r),t=this.routeContainerEl=document.querySelector(this.config.routeContainer)}}_appendExternalTemplates(e){let t=document.getElementsByTagName("head")[0];e.forEach(r=>{Array.isArray(r)?console.error(...r):t.append(r)})}_start(){f(this,d)!==!0&&(window.addEventListener("hashchange",e=>this._hashChange(e)),this.doRoute(),document.dispatchEvent(new CustomEvent("uibrouter:loaded")),uibuilder&&uibuilder.set("uibrouter","loaded"),m(this,d,!0))}_hashChange(e){this.doRoute(e)}_createRouteContent(e){let t=document.querySelector(`#${e}`);if(!t)return console.error(`[uibrouter:createRouteContent] No route template found for route selector '#${e}'. Does the link url match a defined route id?`),!1;let r=t.content.cloneNode(!0);this.isRouteExternal(e)&&this._applyScripts(r);let o=document.createElement("div");o.dataset.route=e,o.append(r);try{this.routeContainerEl.append(o)}catch(n){return console.error(`[uibrouter:createRouteContent] Failed to apply route id '${e}'. 
- ${n.message}`),!1}return!0}_loadExternal(e){let t=e.id;return fetch(e.src).then(r=>r.ok===!1?[e.id,e.src,r.status,r.statusText]:r.text()).then(r=>{if(Array.isArray(r))return r;try{let n=document.querySelector(`#${t}`);n&&n.remove()}catch{}let o=document.createElement("template");return o.innerHTML=r,o.setAttribute("id",t),o}).catch(r=>{console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${e.src}:`,r)})}_applyScripts(e){e.querySelectorAll("script").forEach(r=>{let o=document.createElement("script");o.textContent=r.innerText,e.append(o),r.remove()})}doRoute(e){let t=this.routeContainerEl;if(!t)throw new Error("[uibrouter:doRoute] Cannot route, has router.setup() been called yet?");let r=this.keepHashFromUrl(window.location.hash);e||(e=r);let o,n;if(typeof e=="string"){if(o=this.keepHashFromUrl(e),n=r,o===""&&this.config.defaultRoute&&(o=this.config.defaultRoute),o!==r){window.location.hash=`#${o}`;return}}else if(e.type==="hashchange"){let u=e.newURL;if(u.includes("#"))n=this.keepHashFromUrl(e.oldURL),o=this.keepHashFromUrl(u);else return}else{n=r;try{o=this.keepHashFromUrl(e.target.attributes.href.value)}catch{throw new Error("[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute")}}let l=!1;if(!o||!this.routeList().includes(o))throw document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:n}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=n?`#${n}`:"",new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${o}'`);if(this.config.hide){if(n){let c=document.querySelector(`div[data-route="${n}"]`);c&&(c.style.display="none")}let u=document.querySelector(`div[data-route="${o}"]`);u?(u.style.removeProperty("display"),l=!0):l=this._createRouteContent(o)}else t.replaceChildren(),l=this._createRouteContent(o);if(l===!1){document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:n}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=n?`#${n}`:"";return}this.currentRouteId=o,this.previousRouteId=n,t.dataset.currentRoute=o,this.setCurrentMenuItems(),document.dispatchEvent(new CustomEvent("uibrouter:route-changed",{detail:{newRouteId:o,oldRouteId:n}})),uibuilder&&(uibuilder.set("uibrouter","route changed"),uibuilder.set("uibrouter_CurrentRoute",o),uibuilder.set("uibrouter_CurrentHeading",this.routeHeading()),uibuilder.set("uibrouter_CurrentDetails",this.getRouteConfigById(o)))}getRouteConfigById(e){return Object.values(this.config.routes).filter(t=>t.id===e)[0]}isRouteExternal(e){let t=this.getRouteConfigById(e);return!!(t&&t.type==="url")}defaultRoute(){this.config.defaultRoute&&this.doRoute(this.config.defaultRoute)}removeHash(){history.pushState("",document.title,window.location.pathname+window.location.search)}noRoute(){this.removeHash(),this.routeContainerEl.replaceChildren()}keepHashFromUrl(e){return e?e.replace(/^.*#(.*)/,"$1").replace(/\?.*$/,""):""}routeList(e){return Object.values(this.config.routes).map(t=>e===!0?`#${t.id}`:t.id)}addRoutes(e){Array.isArray(e)||(e=[e]),Promise.all(Object.values(e).filter(t=>t.type==="url").map(this._loadExternal)).then(this._appendExternalTemplates).then(()=>{this.config.routes.push(...e),document.dispatchEvent(new CustomEvent("uibrouter:routes-added",{detail:e})),uibuilder&&uibuilder.set("uibrouter","routes added")})}setCurrentMenuItems(){document.querySelectorAll("li[data-route]").forEach(t=>{t.dataset.route===this.currentRouteId?(t.classList.add("currentRoute"),t.setAttribute("aria-current","page")):(t.classList.remove("currentRoute"),t.removeAttribute("aria-current"))})}routeHeading(){let e=this.currentRoute()||{};return e.heading||e.title||e.description||e.id||"[ROUTE NOT FOUND]"}currentRoute(){return this.getRouteConfigById(this.currentRouteId)}};d=new WeakMap,a(s,"version","1.0.1");var w=s;window.UibRouter?console.warn("`UibRouter` already assigned to window. Have you tried to load it more than once?"):window.UibRouter=s;})();
+(()=>{var b=Object.defineProperty;var R=(i,e,t)=>e in i?b(i,e,{enumerable:!0,configurable:!0,writable:!0,value:t}):i[e]=t;var n=(i,e,t)=>(R(i,typeof e!="symbol"?e+"":e,t),t),h=(i,e,t)=>{if(!e.has(i))throw TypeError("Cannot "+t)};var p=(i,e,t)=>(h(i,e,"read from private field"),t?t.call(i):e.get(i)),f=(i,e,t)=>{if(e.has(i))throw TypeError("Cannot add the same private member more than once");e instanceof WeakSet?e.add(i):e.set(i,t)},m=(i,e,t,r)=>(h(i,e,"write to private field"),r?r.call(i,t):e.set(i,t),t);var d,a=class{constructor(e){n(this,"config");n(this,"routeContainerEl");n(this,"currentRouteId");n(this,"previousRouteId");n(this,"routeIds",[]);f(this,d,!1);if(!fetch)throw new Error("[uibrouter:constructor] UibRouter requires `fetch`. Please use a current browser or load a fetch polyfill.");if(!e)throw new Error("[uibrouter:constructor] No config provided");if(!e.routes)throw new Error("[uibrouter:constructor] No routes provided in routerConfig");e.routeContainer||(e.routeContainer="#uibroutecontainer"),this.config=e,this._setRouteContainer(),this._updateRouteIds(),Promise.all(Object.values(e.routes).filter(t=>t.type&&t.type==="url").map(this._loadExternal)).then(this._appendExternalTemplates).then(()=>{this._start()})}_setRouteContainer(){let e=document.getElementsByTagName("body")[0],t=this.routeContainerEl=document.querySelector(this.config.routeContainer);if(!t){let r=document.createElement("div");r.setAttribute("id",this.config.routeContainer.replace("#","")),e.append(r),t=this.routeContainerEl=document.querySelector(this.config.routeContainer)}}_appendExternalTemplates(e){let t=document.getElementsByTagName("head")[0];e.forEach(r=>{Array.isArray(r)?console.error(...r):t.append(r)})}_start(){p(this,d)!==!0&&(window.addEventListener("hashchange",e=>this._hashChange(e)),this.doRoute(),document.dispatchEvent(new CustomEvent("uibrouter:loaded")),uibuilder&&uibuilder.set("uibrouter","loaded"),m(this,d,!0))}_hashChange(e){this.doRoute(e)}_createRouteContent(e){let t=document.querySelector(`#${e}`);if(!t)return console.error(`[uibrouter:createRouteContent] No route template found for route selector '#${e}'. Does the link url match a defined route id?`),!1;let r=t.content.cloneNode(!0);this.isRouteExternal(e)&&this._applyScripts(r);let o=document.createElement("div");o.dataset.route=e,o.append(r);try{this.routeContainerEl.append(o)}catch(u){return console.error(`[uibrouter:createRouteContent] Failed to apply route id '${e}'. 
+ ${u.message}`),!1}return!0}_loadExternal(e){let t=e.id;return fetch(e.src).then(r=>r.ok===!1?[e.id,e.src,r.status,r.statusText]:r.text()).then(r=>{if(Array.isArray(r))return r;try{let u=document.querySelector(`#${t}`);u&&u.remove()}catch{}let o=document.createElement("template");return o.innerHTML=r,o.setAttribute("id",t),o}).catch(r=>{console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${e.src}:`,r)})}_applyScripts(e){e.querySelectorAll("script").forEach(r=>{let o=document.createElement("script");o.textContent=r.innerText,e.append(o),r.remove()})}_updateRouteIds(){this.routeIds=new Set(Object.values(routerConfig.routes).map(e=>e.id))}doRoute(e){let t=this.routeContainerEl;if(!t)throw new Error("[uibrouter:doRoute] Cannot route, has router.setup() been called yet?");let r=this.keepHashFromUrl(window.location.hash);e||(e=r);let o,u;if(typeof e=="string"){if(o=this.keepHashFromUrl(e),u=r,o===""&&this.config.defaultRoute&&(o=this.config.defaultRoute),o!==r){window.location.hash=`#${o}`;return}}else if(e.type==="hashchange"){let s=e.newURL;if(s.includes("#"))u=this.keepHashFromUrl(e.oldURL),o=this.keepHashFromUrl(s);else return}else{u=r;try{o=this.keepHashFromUrl(e.target.attributes.href.value)}catch{throw new Error("[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute")}}let l=!1;if(!o||!this.routeIds.has(o))throw document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:u}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=u?`#${u}`:"",new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${o}'`);if(this.config.hide){if(u){let c=document.querySelector(`div[data-route="${u}"]`);c&&(c.style.display="none")}let s=document.querySelector(`div[data-route="${o}"]`);s?(s.style.removeProperty("display"),l=!0):l=this._createRouteContent(o)}else t.replaceChildren(),l=this._createRouteContent(o);if(l===!1){document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:u}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=u?`#${u}`:"";return}this.currentRouteId=o,this.previousRouteId=u,t.dataset.currentRoute=o,this.setCurrentMenuItems(),document.dispatchEvent(new CustomEvent("uibrouter:route-changed",{detail:{newRouteId:o,oldRouteId:u}})),uibuilder&&(uibuilder.set("uibrouter","route changed"),uibuilder.set("uibrouter_CurrentRoute",o),uibuilder.set("uibrouter_CurrentTitle",this.routeTitle()),uibuilder.set("uibrouter_CurrentDescription",this.routeDescription()),uibuilder.set("uibrouter_CurrentDetails",this.getRouteConfigById(o)))}getRouteConfigById(e){return Object.values(this.config.routes).filter(t=>t.id===e)[0]}isRouteExternal(e){let t=this.getRouteConfigById(e);return!!(t&&t.type==="url")}defaultRoute(){this.config.defaultRoute&&this.doRoute(this.config.defaultRoute)}removeHash(){history.pushState("",document.title,window.location.pathname+window.location.search)}noRoute(){this.removeHash(),this.routeContainerEl.replaceChildren()}keepHashFromUrl(e){return e?e.replace(/^.*#(.*)/,"$1").replace(/\?.*$/,""):""}routeList(e){return e===!0?this.routeIds.map(t=>e===!0?`#${t.id}`:t.id):this.routeIds}addRoutes(e){Array.isArray(e)||(e=[e]),Promise.all(Object.values(e).filter(t=>t.type&&t.type==="url").map(this._loadExternal)).then(this._appendExternalTemplates).then(()=>{this.config.routes.push(...e),this._updateRouteIds(),document.dispatchEvent(new CustomEvent("uibrouter:routes-added",{detail:e})),uibuilder&&uibuilder.set("uibrouter","routes added")})}setCurrentMenuItems(){document.querySelectorAll("li[data-route]").forEach(t=>{t.dataset.route===this.currentRouteId?(t.classList.add("currentRoute"),t.setAttribute("aria-current","page")):(t.classList.remove("currentRoute"),t.removeAttribute("aria-current"))})}routeTitle(){let e=this.currentRoute()||{};return e.title||e.id||"[ROUTE NOT FOUND]"}routeDescription(){let e=this.currentRoute()||{};return e.description||e.id||"[ROUTE NOT FOUND]"}currentRoute(){return this.getRouteConfigById(this.currentRouteId)}};d=new WeakMap,n(a,"version","1.0.1");var w=a;window.UibRouter?console.warn("`UibRouter` already assigned to window. Have you tried to load it more than once?"):window.UibRouter=a;})();
 //# sourceMappingURL=uibrouter.iife.min.js.map
diff --git a/front-end/utils/uibrouter.iife.min.js.map b/front-end/utils/uibrouter.iife.min.js.map
index 8eb4d238..cb5eb6f5 100644
--- a/front-end/utils/uibrouter.iife.min.js.map
+++ b/front-end/utils/uibrouter.iife.min.js.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
   "sources": ["src/front-end-module/uibrouter.js"],
-  "sourcesContent": ["/* eslint-disable no-undef */\n// @ts-nocheck\n/** A simple, vanilla JavaScript front-end router class\n * Included in node-red-contrib-uibuilder but is not dependent on it.\n * May be used in other contexts as desired.\n * \n * Copyright (c) 2023-2023 Julian Knight (Totally Information)\n * https://it.knightnet.org.uk\n *\n * Licensed under the Apache License, Version 2.0 (the 'License');\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an 'AS IS' BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/** ---------------------------------------------------------------------\n * TODO\n * Methods needed:\n *   Delete route\n *   Update/reload route\n *   shutdown - that removes all elements\n *   delete templates - unloads a list of (or all) templates\n *   reload templates - to facilitate updates of a list of (or all) templates\n * Additional options:\n *   unload templates after they are added to the route container. Only if hide=true. `unload: true`\n *   Maybe: options to auto-load js and css files with the same name as a template file.\n * ---------------------------------------------------------------------  */\n\n/** Type definitions\n * routeConfig\n * @typedef {object} routeDefinition Single route configuration\n * @property {string} id REQUIRED. Route ID\n * @property {string} src REQUIRED. CSS Selector for template tag routes, url for external routes\n * @property {\"url\"|undefined} [type] OPTIONAL. \"url\" for external routes\n * UibRouterConfig\n * @typedef {object} UibRouterConfig Configuration for the UiBRouter class instances\n * @property {routeDefinition[]} routes REQUIRED. Array of route definitions\n * @property {string} [defaultRoute] OPTIONAL. If set to a route id, that route will be automatically shown on load\n * @property {string} [routeContainer] OPTIONAL. CSS Selector for an HTML Element containing routes\n * @property {boolean} [hide] OPTIONAL. If TRUE, routes will be hidden/shown on change instead of removed/added\n * @property {boolean} [unload] OPTIONAL. If TRUE, route templates will be unloaded from DOM after access. Only useful with the `hide` option\n */\n\nclass UibRouter { // eslint-disable-line no-unused-vars\n    //#region --- Variables ---\n    /** Class version */\n    static version = '1.0.1'\n\n    /** Configuration settings @type {UibRouterConfig} */\n    config\n    /** Reference to the container DOM element - set in setup() @type {HTMLDivElement} */\n    routeContainerEl\n    /** The current route id after doRoute() has been called */\n    currentRouteId\n    /** The previous route id after doRoute() has been called */\n    previousRouteId\n\n    /** Internal only. Set to true when the _start() method has been called */\n    #startDone = false\n    //#endregion --- ----- ---\n\n    //#region --- Internal Methods ---\n    /** Class constructor\n     * @param {UibRouterConfig} routerConfig Configuration object\n     */\n    constructor(routerConfig) {\n        // Fetch is on desktop browsers since 2017 at latest. Not so much on mobile (Android!)\n        // May need a polyfill on mobile or old browsers.\n        if (!fetch) throw new Error('[uibrouter:constructor] UibRouter requires `fetch`. Please use a current browser or load a fetch polyfill.')\n\n        if (!routerConfig) throw new Error('[uibrouter:constructor] No config provided')\n        if (!routerConfig.routes) throw new Error('[uibrouter:constructor] No routes provided in routerConfig')\n        // Add a default route container uf needed\n        if (!routerConfig.routeContainer)routerConfig.routeContainer = '#uibroutecontainer'\n\n        // Save the config\n        this.config = routerConfig\n        // Create/access the route container element, sets this.routeContainerEl\n        this._setRouteContainer()\n\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routerConfig.routes).filter(r => r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded so we can start\n                this._start()\n            } )\n    }\n\n    /** Save a reference to, and create if necessary, the HTML element to hold routes */\n    _setRouteContainer() {\n        const body = document.getElementsByTagName('body')[0]\n        // Get reference to route container or create it\n        let routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        if (!routeContainerEl) {\n            // throw new Error(`Route container element with CSS selector '${routerConfig.routeContainer}' not found in HTML`)\n            const tempContainer = document.createElement('div')\n            tempContainer.setAttribute('id', this.config.routeContainer.replace('#', ''))\n            body.append(tempContainer)\n            routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        }\n    }\n\n    /** Load fetched external elements to templates tags under the head tag\n     * @param {HTMLElement[]} loadedElements Array of loaded external elements to add as templates to the head tag\n     */\n    _appendExternalTemplates(loadedElements) {\n        const head = document.getElementsByTagName('head')[0]\n        // Append the loaded content to the main container\n        loadedElements.forEach(element => {\n            if (Array.isArray(element)) {\n                console.error(...element)\n            } else {\n                head.append(element)\n            }\n        })\n    }\n\n    /** Called once all external templates have been loaded */\n    _start() {\n        if (this.#startDone === true) return // Don't run this again\n\n        // Listen for url hash changes and process route change\n        window.addEventListener('hashchange', (event) => this._hashChange(event) )\n        // Go to default route if no route in url and if a default is defined or ensure current route is shown\n        this.doRoute()\n        // Events on fully loaded ...\n        document.dispatchEvent(new CustomEvent('uibrouter:loaded'))\n        if (uibuilder) uibuilder.set('uibrouter', 'loaded') // eslint-disable-line no-undef\n\n        this.#startDone = true // Don't run this again\n    }\n\n    /** Called when the URL Hash changes\n     * @param {HashChangeEvent} event URL Hash change event object\n     */\n    _hashChange(event) {\n        // console.log(`[uibrouter] hashchange: ${this.keepHashFromUrl(event.oldURL)} => ${this.keepHashFromUrl(event.newURL)}` )\n        this.doRoute(event)\n    }\n\n    /** Create DOM route content from a route template (internal or external)\n     * Route templates have to be a `<template>` tag with an ID that matches the route id.\n     * @param {string} routeId ID of the route definition to use to create the content\n     * @returns {boolean} True if the route content was created successfully, false otherwise\n     */\n    _createRouteContent(routeId) {\n        const rContent = document.querySelector(`#${routeId}`)\n        if (!rContent) {\n            console.error(`[uibrouter:createRouteContent] No route template found for route selector '#${routeId}'. Does the link url match a defined route id?`)\n            return false\n        }\n        const docFrag = rContent.content.cloneNode(true)\n        // Have to re-apply the scripts to make them run - only for external templates\n        if (this.isRouteExternal(routeId)) this._applyScripts(docFrag)\n        // Create the route wrapper div with data-route attrib\n        const tempContainer = document.createElement('div')\n        tempContainer.dataset.route = routeId\n        tempContainer.append(docFrag)\n        // And finally try to append to the container\n        try {\n            this.routeContainerEl.append(tempContainer)\n        } catch (e) {\n            console.error(`[uibrouter:createRouteContent] Failed to apply route id '${routeId}'. \\n ${e.message}`)\n            return false\n        }\n        return true\n    }\n\n    /** Loads an external HTML file into a `<template>` tag, adding the router id as the template id.\n     *  or returns an error array\n     * @param {routeDefinition} routeDefinition Configuration for a single route\n     * @returns {Promise<HTMLTemplateElement[]|[string,string,number,string]>} A promise that fulfills to an HTMLTemplateElement or an array containing error information\n     */\n    _loadExternal(routeDefinition) {\n        // const id = singleConfig.src.split('/').pop().replace('.html','')\n        const id = routeDefinition.id\n        // @ts-ignore\n        return fetch(routeDefinition.src)\n            .then(response => {\n                // Fetch failed?\n                if (response.ok === false) return [routeDefinition.id, routeDefinition.src, response.status, response.statusText]\n                return response.text()\n            })\n            .then((/** @type {string} */ htmlText) => {\n                if (Array.isArray(htmlText)) return htmlText // if the fetch failed\n\n                // Check to see if template already exists, if so, remove it\n                try {\n                    const chkTemplate = document.querySelector(`#${id}`)\n                    if (chkTemplate) chkTemplate.remove()\n                } catch (e) {}\n\n                const tempContainer = document.createElement('template')\n                tempContainer.innerHTML = htmlText\n                tempContainer.setAttribute('id', id)\n                return tempContainer\n            })\n            .catch(error => {\n                console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${routeDefinition.src}:`, error)\n            })\n    }\n\n    /** Remove/re-apply scripts in a container Element so that they are executed.\n     * @param {HTMLElement} tempContainer HTML Element of container to process\n     */\n    _applyScripts(tempContainer) {\n        const scripts = tempContainer.querySelectorAll('script')\n        scripts.forEach( scr => {\n            const newScript = document.createElement('script')\n            newScript.textContent = scr.innerText\n            tempContainer.append(newScript)\n            scr.remove() // remove the origin\n        })\n    }\n    //#endregion --- ----- --\n\n    /** Process a routing request\n     * @param {PointerEvent|MouseEvent|HashChangeEvent|TouchEvent|string} routeSource Either string containing route id or DOM Event object either click/touch on element containing `href=\"#routeid\"` or Hash URL change event\n     */\n    doRoute(routeSource) {\n        const container = this.routeContainerEl\n        if (!container) throw new Error('[uibrouter:doRoute] Cannot route, has router.setup() been called yet?')\n\n        // Remove all the url and query param text and any leading # - returns '' if no current hash\n        const currentHash = this.keepHashFromUrl(window.location.hash)\n\n        // If no route source provided, take the current hash (which might be '' and that will trigger the default route if defined)\n        if (!routeSource) routeSource = currentHash\n\n        let newRouteId, oldRouteId\n\n        // Define new and old routes depending on different call types\n        if (typeof routeSource === 'string') { // Manually provided route id\n            // console.log(`[uibrouter:doRoute] manual: ${currentHash} => ${this.keepHashFromUrl(routeSource)}. Current: ${currentHash}` )\n            newRouteId = this.keepHashFromUrl(routeSource)\n            oldRouteId = currentHash\n            // If no hash & config has default, set the default as new\n            if (newRouteId === '' && this.config.defaultRoute) newRouteId = this.config.defaultRoute\n            // If the new route id not the same as the current one in the url hash, just change the current hash & exit\n            if (newRouteId !== currentHash ) {\n                window.location.hash = `#${newRouteId}`\n                return\n            }\n        } else if (routeSource.type === 'hashchange') { // A URL Hash change event\n            // console.log(`[uibrouter:doRoute] hashchange: ${this.keepHashFromUrl(routeSource.oldURL)} => ${this.keepHashFromUrl(routeSource.newURL)}. Current: ${currentHash}` )\n            const newUrl = routeSource.newURL\n            // Check if URL actually contains a #\n            if (newUrl.includes('#')) {\n                oldRouteId = this.keepHashFromUrl(routeSource.oldURL)\n                newRouteId = this.keepHashFromUrl(newUrl) // Only keep anything after the # & ignoring query params\n            } else return\n        } else { // A mouse click/touch event on a dom element with an href attribute\n            oldRouteId = currentHash\n            // Try to get the route name from the URL hash\n            try {\n                newRouteId = this.keepHashFromUrl(routeSource.target.attributes.href.value) // Only keep anything after the # & ignoring query params\n            } catch (e) {\n                throw new Error('[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute')\n            }\n        }\n\n        let routeShown = false\n\n        // If no defined valid route, undo and throw error\n        if (!newRouteId || !this.routeList().includes(newRouteId)) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            throw new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${newRouteId}'`)\n        }\n\n        // Show the new container (replace or show)\n        if (this.config.hide) {\n            // config.hide = true so hide previous contents\n            if (oldRouteId) {\n                /** @type {HTMLElement|null} */\n                const oldContent = document.querySelector(`div[data-route=\"${oldRouteId}\"]`)\n                if (oldContent) oldContent.style.display = 'none'\n            }\n            /** and unhide new route if possible @type {HTMLElement|null} */\n            const content = document.querySelector(`div[data-route=\"${newRouteId}\"]`)\n            if (content) {\n                content.style.removeProperty('display')\n                routeShown = true\n            } else {\n                // else create new content from template\n                routeShown = this._createRouteContent(newRouteId)\n            }\n        } else {\n            // config.hide != true so remove previous contents\n            container.replaceChildren()\n            // Create new content from template\n            routeShown = this._createRouteContent(newRouteId)\n        }\n\n        // console.log({ newRouteId, oldRouteId, currentHash, routeShown })\n\n        // Roll back the route change if the new route cannot be shown\n        if (routeShown === false) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            return\n        }\n\n        // Retain current and previous route id's\n        this.currentRouteId = newRouteId\n        this.previousRouteId = oldRouteId\n\n        // Record the current route on the route container\n        container.dataset.currentRoute = newRouteId\n\n        // Update any existing HTML menu items\n        this.setCurrentMenuItems()\n\n        // Events on route changed ...\n        document.dispatchEvent(new CustomEvent('uibrouter:route-changed', { detail: { newRouteId, oldRouteId } }))\n        if (uibuilder) {\n            uibuilder.set('uibrouter', 'route changed')\n            uibuilder.set('uibrouter_CurrentRoute', newRouteId)\n            uibuilder.set('uibrouter_CurrentHeading', this.routeHeading())\n            uibuilder.set('uibrouter_CurrentDetails', this.getRouteConfigById(newRouteId))\n        }\n    }\n\n    /** Return a route config given a route id (returns undefined if route not found)\n     * @param {string} routeId Route ID to search for\n     * @returns {routeDefinition|undefined} Route config for found id else undefined\n     */\n    getRouteConfigById(routeId) {\n        return Object.values(this.config.routes).filter(r => r.id === routeId)[0]\n    }\n\n    /** Return true if the given route is external, false otherwise\n     * Used to correctly (re)apply script tags when cloning the template to the DOM (createRouteContent)\n     * @param {string} routeId Route ID to check\n     * @returns {boolean} True if the given route is external, false otherwise\n     */\n    isRouteExternal(routeId) {\n        const routeConfig = this.getRouteConfigById(routeId)\n        return !!(routeConfig && routeConfig.type === 'url')\n    }\n\n    /** Go to the default route if it has been specified */\n    defaultRoute() {\n        if (this.config.defaultRoute) this.doRoute(this.config.defaultRoute)\n    }\n\n    removeHash() {\n        history.pushState('', document.title, window.location.pathname + window.location.search)\n    }\n\n    /** Empty the current container and remove url hash - does not trigger a route change */\n    noRoute() {\n        this.removeHash()\n        this.routeContainerEl.replaceChildren()\n    }\n\n    /** Only keep anything after the # & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Return an array of route ids (to facilitate creation of menus)\n     * @param {boolean} returnHash If true, returns id's with leading `#` to apply to href attributes else returns the id\n     * @returns {string[]} Array of route id's or route url hashes\n     */\n    routeList(returnHash) {\n        return Object.values(this.config.routes).map((r) => returnHash === true ? `#${r.id}` : r.id)\n    }\n\n    /** Add new route definitions to the existing ones\n     * @param {routeDefinition|routeDefinition[]} routeConfig Single or array of route definitions to add\n     */\n    addRoutes(routeConfig) {\n        if (!Array.isArray(routeConfig)) routeConfig = [routeConfig]\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routeConfig).filter(r => r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded - Add new routes to config\n                this.config.routes.push(...routeConfig)\n                // Let everyone know it all finished\n                document.dispatchEvent(new CustomEvent('uibrouter:routes-added', { detail: routeConfig }))\n                if (uibuilder) uibuilder.set('uibrouter', 'routes added') // eslint-disable-line no-undef, promise/always-return\n            } )\n    }\n\n    //#region --- utils for page display & processing ---\n    setCurrentMenuItems() {\n        // const items = document.querySelectorAll(`li[data-route=\"${this.currentRouteId}\"]`)\n        const items = document.querySelectorAll('li[data-route]')\n        items.forEach( item => {\n            if (item.dataset.route === this.currentRouteId) {\n                item.classList.add('currentRoute')\n                item.setAttribute('aria-current', 'page')\n            } else {\n                item.classList.remove('currentRoute')\n                item.removeAttribute('aria-current')\n            }\n        })\n    }\n\n    routeHeading() {\n        const thisRoute = this.currentRoute() || {}\n        return thisRoute.heading || thisRoute.title || thisRoute.description || thisRoute.id || '[ROUTE NOT FOUND]'\n    }\n\n    currentRoute() {\n        return this.getRouteConfigById(this.currentRouteId)\n    }\n    //#endregion ---- ----- ----\n\n    // TODO\n    // deleteRoutes(aRoutes) {\n    //     // Delete all if no list provided\n    //     if (!aRoutes) aRoutes = this.config.routes\n    //     if (!Array.isArray(aRoutes)) aRoutes = [aRoutes]\n    //     console.log('to be deleted', this.config.routes.filter(r => aRoutes.includes(r.id)))\n    //     console.log('to be retained', this.config.routes.filter(r => !aRoutes.includes(r.id)))\n\n    //     // TODO actually remove the unwanted route templates\n    //     // TODO remove from the config: this.config.routes = this.config.routes.filter(r => !aRoutes.includes(r.id))\n\n    //     // ? Optional future upgrade - attempt to also remove any links to this route?\n    // }\n\n    // TODO\n    // deleteTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO delete\n    //     } )\n    // }\n\n    // TODO\n    // reloadTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO reload\n    //     } )\n    // }\n} // ---- End of class ----\n\n// For use in ESM loads\nexport { UibRouter }\nexport default UibRouter\n\n// Auto-assign for when the library is loaded via a script tag\nif (!window['UibRouter']) {\n    window['UibRouter'] = UibRouter\n} else {\n    console.warn('`UibRouter` already assigned to window. Have you tried to load it more than once?')\n}\n"],
-  "mappings": 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-  "names": ["_startDone", "UibRouter", "routerConfig", "__publicField", "__privateAdd", "r", "body", "routeContainerEl", "tempContainer", "loadedElements", "head", "element", "__privateGet", "event", "__privateSet", "routeId", "rContent", "docFrag", "e", "routeDefinition", "id", "response", "htmlText", "chkTemplate", "error", "scr", "newScript", "routeSource", "container", "currentHash", "newRouteId", "oldRouteId", "newUrl", "routeShown", "oldContent", "content", "routeConfig", "url", "returnHash", "item", "thisRoute", "uibrouter_default", "UibRouter"]
+  "sourcesContent": ["/* eslint-disable no-undef */\n// @ts-nocheck\n/** A simple, vanilla JavaScript front-end router class\n * Included in node-red-contrib-uibuilder but is not dependent on it.\n * May be used in other contexts as desired.\n * \n * Copyright (c) 2023-2023 Julian Knight (Totally Information)\n * https://it.knightnet.org.uk\n *\n * Licensed under the Apache License, Version 2.0 (the 'License');\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an 'AS IS' BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/** Type definitions\n * routeDefinition\n * @typedef {object} routeDefinition Single route configuration\n * @property {string} id REQUIRED. Route ID\n * @property {string} src REQUIRED. CSS Selector for template tag routes, url for external routes\n * @property {\"url\"|undefined} [type] OPTIONAL. \"url\" for external routes\n * @property {string} [title] OPTIONAL. Text to use as a short title for the route\n * @property {string} [description] OPTIONAL. Text to use as a long description for the route\n * UibRouterConfig\n * @typedef {object} UibRouterConfig Configuration for the UiBRouter class instances\n * @property {routeDefinition[]} routes REQUIRED. Array of route definitions\n * @property {string} [defaultRoute] OPTIONAL. If set to a route id, that route will be automatically shown on load\n * @property {string} [routeContainer] OPTIONAL. CSS Selector for an HTML Element containing routes\n * @property {boolean} [hide] OPTIONAL. If TRUE, routes will be hidden/shown on change instead of removed/added\n * @property {boolean} [unload] OPTIONAL. If TRUE, route templates will be unloaded from DOM after access. Only useful with the `hide` option\n */\n\nclass UibRouter { // eslint-disable-line no-unused-vars\n    //#region --- Variables ---\n    /** Class version */\n    static version = '1.0.1'\n\n    /** Configuration settings @type {UibRouterConfig} */\n    config\n    /** Reference to the container DOM element - set in setup() @type {HTMLDivElement} */\n    routeContainerEl\n    /** The current route id after doRoute() has been called */\n    currentRouteId\n    /** The previous route id after doRoute() has been called */\n    previousRouteId\n    /** Array of route ID's (created in constructor) */\n    routeIds = []\n\n    /** Internal only. Set to true when the _start() method has been called */\n    #startDone = false\n    //#endregion --- ----- ---\n\n    //#region --- Internal Methods ---\n    /** Class constructor\n     * @param {UibRouterConfig} routerConfig Configuration object\n     */\n    constructor(routerConfig) {\n        // Fetch is on desktop browsers since 2017 at latest. Not so much on mobile (Android!)\n        // May need a polyfill on mobile or old browsers.\n        if (!fetch) throw new Error('[uibrouter:constructor] UibRouter requires `fetch`. Please use a current browser or load a fetch polyfill.')\n\n        if (!routerConfig) throw new Error('[uibrouter:constructor] No config provided')\n        if (!routerConfig.routes) throw new Error('[uibrouter:constructor] No routes provided in routerConfig')\n        // Add a default route container uf needed\n        if (!routerConfig.routeContainer)routerConfig.routeContainer = '#uibroutecontainer'\n\n        // Save the config\n        this.config = routerConfig\n        // Create/access the route container element, sets this.routeContainerEl\n        this._setRouteContainer()\n\n        this._updateRouteIds()\n\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routerConfig.routes).filter(r => r.type && r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded so we can start\n                this._start()\n            } )\n    }\n\n    /** Save a reference to, and create if necessary, the HTML element to hold routes */\n    _setRouteContainer() {\n        const body = document.getElementsByTagName('body')[0]\n        // Get reference to route container or create it\n        let routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        if (!routeContainerEl) {\n            // throw new Error(`Route container element with CSS selector '${routerConfig.routeContainer}' not found in HTML`)\n            const tempContainer = document.createElement('div')\n            tempContainer.setAttribute('id', this.config.routeContainer.replace('#', ''))\n            body.append(tempContainer)\n            routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        }\n    }\n\n    /** Load fetched external elements to templates tags under the head tag\n     * @param {HTMLElement[]} loadedElements Array of loaded external elements to add as templates to the head tag\n     */\n    _appendExternalTemplates(loadedElements) {\n        const head = document.getElementsByTagName('head')[0]\n        // Append the loaded content to the main container\n        loadedElements.forEach(element => {\n            if (Array.isArray(element)) {\n                console.error(...element)\n            } else {\n                head.append(element)\n            }\n        })\n    }\n\n    /** Called once all external templates have been loaded */\n    _start() {\n        if (this.#startDone === true) return // Don't run this again\n\n        // Listen for url hash changes and process route change\n        window.addEventListener('hashchange', (event) => this._hashChange(event) )\n        // Go to default route if no route in url and if a default is defined or ensure current route is shown\n        this.doRoute()\n        // Events on fully loaded ...\n        document.dispatchEvent(new CustomEvent('uibrouter:loaded'))\n        if (uibuilder) uibuilder.set('uibrouter', 'loaded') // eslint-disable-line no-undef\n\n        this.#startDone = true // Don't run this again\n    }\n\n    /** Called when the URL Hash changes\n     * @param {HashChangeEvent} event URL Hash change event object\n     */\n    _hashChange(event) {\n        // console.log(`[uibrouter] hashchange: ${this.keepHashFromUrl(event.oldURL)} => ${this.keepHashFromUrl(event.newURL)}` )\n        this.doRoute(event)\n    }\n\n    /** Create DOM route content from a route template (internal or external)\n     * Route templates have to be a `<template>` tag with an ID that matches the route id.\n     * @param {string} routeId ID of the route definition to use to create the content\n     * @returns {boolean} True if the route content was created successfully, false otherwise\n     */\n    _createRouteContent(routeId) {\n        const rContent = document.querySelector(`#${routeId}`)\n        if (!rContent) {\n            console.error(`[uibrouter:createRouteContent] No route template found for route selector '#${routeId}'. Does the link url match a defined route id?`)\n            return false\n        }\n        const docFrag = rContent.content.cloneNode(true)\n        // Have to re-apply the scripts to make them run - only for external templates\n        if (this.isRouteExternal(routeId)) this._applyScripts(docFrag)\n        // Create the route wrapper div with data-route attrib\n        const tempContainer = document.createElement('div')\n        tempContainer.dataset.route = routeId\n        tempContainer.append(docFrag)\n        // And finally try to append to the container\n        try {\n            this.routeContainerEl.append(tempContainer)\n        } catch (e) {\n            console.error(`[uibrouter:createRouteContent] Failed to apply route id '${routeId}'. \\n ${e.message}`)\n            return false\n        }\n        return true\n    }\n\n    /** Loads an external HTML file into a `<template>` tag, adding the router id as the template id.\n     *  or returns an error array\n     * @param {routeDefinition} routeDefinition Configuration for a single route\n     * @returns {Promise<HTMLTemplateElement[]|[string,string,number,string]>} A promise that fulfills to an HTMLTemplateElement or an array containing error information\n     */\n    _loadExternal(routeDefinition) {\n        // const id = singleConfig.src.split('/').pop().replace('.html','')\n        const id = routeDefinition.id\n        // @ts-ignore\n        return fetch(routeDefinition.src)\n            .then(response => {\n                // Fetch failed?\n                if (response.ok === false) return [routeDefinition.id, routeDefinition.src, response.status, response.statusText]\n                return response.text()\n            })\n            .then((/** @type {string} */ htmlText) => {\n                if (Array.isArray(htmlText)) return htmlText // if the fetch failed\n\n                // Check to see if template already exists, if so, remove it\n                try {\n                    const chkTemplate = document.querySelector(`#${id}`)\n                    if (chkTemplate) chkTemplate.remove()\n                } catch (e) {}\n\n                const tempContainer = document.createElement('template')\n                tempContainer.innerHTML = htmlText\n                tempContainer.setAttribute('id', id)\n                return tempContainer\n            })\n            .catch(error => {\n                console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${routeDefinition.src}:`, error)\n            })\n    }\n\n    /** Remove/re-apply scripts in a container Element so that they are executed.\n     * @param {HTMLElement} tempContainer HTML Element of container to process\n     */\n    _applyScripts(tempContainer) {\n        const scripts = tempContainer.querySelectorAll('script')\n        scripts.forEach( scr => {\n            const newScript = document.createElement('script')\n            newScript.textContent = scr.innerText\n            tempContainer.append(newScript)\n            scr.remove() // remove the origin\n        })\n    }\n\n    /** Update this.routeIds array from this.config (on start and after add/remove routes) */\n    _updateRouteIds() {\n        this.routeIds = new Set(Object.values(routerConfig.routes).map( r => r.id ))\n    }\n    //#endregion --- ----- --\n\n    /** Process a routing request\n     * @param {PointerEvent|MouseEvent|HashChangeEvent|TouchEvent|string} routeSource Either string containing route id or DOM Event object either click/touch on element containing `href=\"#routeid\"` or Hash URL change event\n     */\n    doRoute(routeSource) {\n        const container = this.routeContainerEl\n        if (!container) throw new Error('[uibrouter:doRoute] Cannot route, has router.setup() been called yet?')\n\n        // Remove all the url and query param text and any leading # - returns '' if no current hash\n        const currentHash = this.keepHashFromUrl(window.location.hash)\n\n        // If no route source provided, take the current hash (which might be '' and that will trigger the default route if defined)\n        if (!routeSource) routeSource = currentHash\n\n        let newRouteId, oldRouteId\n\n        // Define new and old routes depending on different call types\n        if (typeof routeSource === 'string') { // Manually provided route id\n            // console.log(`[uibrouter:doRoute] manual: ${currentHash} => ${this.keepHashFromUrl(routeSource)}. Current: ${currentHash}` )\n            newRouteId = this.keepHashFromUrl(routeSource)\n            oldRouteId = currentHash\n            // If no hash & config has default, set the default as new\n            if (newRouteId === '' && this.config.defaultRoute) newRouteId = this.config.defaultRoute\n            // If the new route id not the same as the current one in the url hash, just change the current hash & exit\n            if (newRouteId !== currentHash ) {\n                window.location.hash = `#${newRouteId}`\n                return\n            }\n        } else if (routeSource.type === 'hashchange') { // A URL Hash change event\n            // console.log(`[uibrouter:doRoute] hashchange: ${this.keepHashFromUrl(routeSource.oldURL)} => ${this.keepHashFromUrl(routeSource.newURL)}. Current: ${currentHash}` )\n            const newUrl = routeSource.newURL\n            // Check if URL actually contains a #\n            if (newUrl.includes('#')) {\n                oldRouteId = this.keepHashFromUrl(routeSource.oldURL)\n                newRouteId = this.keepHashFromUrl(newUrl) // Only keep anything after the # & ignoring query params\n            } else return\n        } else { // A mouse click/touch event on a dom element with an href attribute\n            oldRouteId = currentHash\n            // Try to get the route name from the URL hash\n            try {\n                newRouteId = this.keepHashFromUrl(routeSource.target.attributes.href.value) // Only keep anything after the # & ignoring query params\n            } catch (e) {\n                throw new Error('[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute')\n            }\n        }\n\n        let routeShown = false\n\n        // If no defined valid route, undo and throw error\n        if (!newRouteId || !this.routeIds.has(newRouteId)) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            throw new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${newRouteId}'`)\n        }\n\n        // Show the new container (replace or show)\n        if (this.config.hide) {\n            // config.hide = true so hide previous contents\n            if (oldRouteId) {\n                /** @type {HTMLElement|null} */\n                const oldContent = document.querySelector(`div[data-route=\"${oldRouteId}\"]`)\n                if (oldContent) oldContent.style.display = 'none'\n            }\n            /** and unhide new route if possible @type {HTMLElement|null} */\n            const content = document.querySelector(`div[data-route=\"${newRouteId}\"]`)\n            if (content) {\n                content.style.removeProperty('display')\n                routeShown = true\n            } else {\n                // else create new content from template\n                routeShown = this._createRouteContent(newRouteId)\n            }\n        } else {\n            // config.hide != true so remove previous contents\n            container.replaceChildren()\n            // Create new content from template\n            routeShown = this._createRouteContent(newRouteId)\n        }\n\n        // console.log({ newRouteId, oldRouteId, currentHash, routeShown })\n\n        // Roll back the route change if the new route cannot be shown\n        if (routeShown === false) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            return\n        }\n\n        // Retain current and previous route id's\n        this.currentRouteId = newRouteId\n        this.previousRouteId = oldRouteId\n\n        // Record the current route on the route container\n        container.dataset.currentRoute = newRouteId\n\n        // Update any existing HTML menu items\n        this.setCurrentMenuItems()\n\n        // Events on route changed ...\n        document.dispatchEvent(new CustomEvent('uibrouter:route-changed', { detail: { newRouteId, oldRouteId } }))\n        if (uibuilder) {\n            uibuilder.set('uibrouter', 'route changed')\n            uibuilder.set('uibrouter_CurrentRoute', newRouteId)\n            uibuilder.set('uibrouter_CurrentTitle', this.routeTitle())\n            uibuilder.set('uibrouter_CurrentDescription', this.routeDescription())\n            uibuilder.set('uibrouter_CurrentDetails', this.getRouteConfigById(newRouteId))\n        }\n    }\n\n    /** Return a route config given a route id (returns undefined if route not found)\n     * @param {string} routeId Route ID to search for\n     * @returns {routeDefinition|undefined} Route config for found id else undefined\n     */\n    getRouteConfigById(routeId) {\n        return Object.values(this.config.routes).filter(r => r.id === routeId)[0]\n    }\n\n    /** Return true if the given route is external, false otherwise\n     * Used to correctly (re)apply script tags when cloning the template to the DOM (createRouteContent)\n     * @param {string} routeId Route ID to check\n     * @returns {boolean} True if the given route is external, false otherwise\n     */\n    isRouteExternal(routeId) {\n        const routeConfig = this.getRouteConfigById(routeId)\n        return !!(routeConfig && routeConfig.type === 'url')\n    }\n\n    /** Go to the default route if it has been specified */\n    defaultRoute() {\n        if (this.config.defaultRoute) this.doRoute(this.config.defaultRoute)\n    }\n\n    /** Remove the hash from the browser URL */\n    removeHash() {\n        history.pushState('', document.title, window.location.pathname + window.location.search)\n    }\n\n    /** Empty the current container and remove url hash - does not trigger a route change */\n    noRoute() {\n        this.removeHash()\n        this.routeContainerEl.replaceChildren()\n    }\n\n    /** Only keep anything after the # & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Return an array of route ids (to facilitate creation of menus)\n     * @param {boolean} returnHash If true, returns id's with leading `#` to apply to href attributes else returns the id\n     * @returns {string[]} Array of route id's or route url hashes\n     */\n    routeList(returnHash) {\n        if (returnHash === true) return this.routeIds.map((r) => returnHash === true ? `#${r.id}` : r.id)\n        return this.routeIds\n    }\n\n    /** Add new route definitions to the existing ones\n     * @param {routeDefinition|routeDefinition[]} routeDefn Single or array of route definitions to add\n     */\n    addRoutes(routeDefn) {\n        if (!Array.isArray(routeDefn)) routeDefn = [routeDefn]\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routeDefn).filter(r => r.type && r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded - Add new routes to config\n                this.config.routes.push(...routeDefn)\n                // and update the routeIds list\n                this._updateRouteIds()\n                // Let everyone know it all finished\n                document.dispatchEvent(new CustomEvent('uibrouter:routes-added', { detail: routeDefn }))\n                if (uibuilder) uibuilder.set('uibrouter', 'routes added') // eslint-disable-line no-undef, promise/always-return\n            } )\n    }\n\n    //#region --- utils for page display & processing ---\n    setCurrentMenuItems() {\n        // const items = document.querySelectorAll(`li[data-route=\"${this.currentRouteId}\"]`)\n        const items = document.querySelectorAll('li[data-route]')\n        items.forEach( item => {\n            if (item.dataset.route === this.currentRouteId) {\n                item.classList.add('currentRoute')\n                item.setAttribute('aria-current', 'page')\n            } else {\n                item.classList.remove('currentRoute')\n                item.removeAttribute('aria-current')\n            }\n        })\n    }\n\n    routeTitle() {\n        const thisRoute = this.currentRoute() || {}\n        return thisRoute.title || thisRoute.id || '[ROUTE NOT FOUND]'\n    }\n\n    routeDescription() {\n        const thisRoute = this.currentRoute() || {}\n        return thisRoute.description || thisRoute.id || '[ROUTE NOT FOUND]'\n    }\n\n    currentRoute() {\n        return this.getRouteConfigById(this.currentRouteId)\n    }\n    //#endregion ---- ----- ----\n\n    // TODO\n    // deleteRoutes(aRoutes) {\n    //     // Delete all if no list provided\n    //     if (!aRoutes) aRoutes = this.config.routes\n    //     if (!Array.isArray(aRoutes)) aRoutes = [aRoutes]\n    //     console.log('to be deleted', this.config.routes.filter(r => aRoutes.includes(r.id)))\n    //     console.log('to be retained', this.config.routes.filter(r => !aRoutes.includes(r.id)))\n\n    //     // TODO actually remove the unwanted route templates\n    //     // TODO remove from the config: this.config.routes = this.config.routes.filter(r => !aRoutes.includes(r.id))\n\n    //     // ? Optional future upgrade - attempt to also remove any links to this route?\n    // }\n\n    // TODO\n    // deleteTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO delete\n    //     } )\n    // }\n\n    // TODO\n    // reloadTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO reload\n    //     } )\n    // }\n} // ---- End of class ----\n\n// For use in ESM loads\nexport { UibRouter }\nexport default UibRouter\n\n// Auto-assign for when the library is loaded via a script tag\nif (!window['UibRouter']) {\n    window['UibRouter'] = UibRouter\n} else {\n    console.warn('`UibRouter` already assigned to window. Have you tried to load it more than once?')\n}\n"],
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+  "names": ["_startDone", "UibRouter", "routerConfig", "__publicField", "__privateAdd", "r", "body", "routeContainerEl", "tempContainer", "loadedElements", "head", "element", "__privateGet", "event", "__privateSet", "routeId", "rContent", "docFrag", "e", "routeDefinition", "id", "response", "htmlText", "chkTemplate", "error", "scr", "newScript", "routeSource", "container", "currentHash", "newRouteId", "oldRouteId", "newUrl", "routeShown", "oldContent", "content", "routeConfig", "url", "returnHash", "routeDefn", "item", "thisRoute", "uibrouter_default", "UibRouter"]
 }
diff --git a/src/front-end-module/uibrouter.js b/src/front-end-module/uibrouter.js
index a0c6b3ef..6fff9e69 100644
--- a/src/front-end-module/uibrouter.js
+++ b/src/front-end-module/uibrouter.js
@@ -20,25 +20,14 @@
  * limitations under the License.
  */
 
-/** ---------------------------------------------------------------------
- * TODO
- * Methods needed:
- *   Delete route
- *   Update/reload route
- *   shutdown - that removes all elements
- *   delete templates - unloads a list of (or all) templates
- *   reload templates - to facilitate updates of a list of (or all) templates
- * Additional options:
- *   unload templates after they are added to the route container. Only if hide=true. `unload: true`
- *   Maybe: options to auto-load js and css files with the same name as a template file.
- * ---------------------------------------------------------------------  */
-
 /** Type definitions
- * routeConfig
+ * routeDefinition
  * @typedef {object} routeDefinition Single route configuration
  * @property {string} id REQUIRED. Route ID
  * @property {string} src REQUIRED. CSS Selector for template tag routes, url for external routes
  * @property {"url"|undefined} [type] OPTIONAL. "url" for external routes
+ * @property {string} [title] OPTIONAL. Text to use as a short title for the route
+ * @property {string} [description] OPTIONAL. Text to use as a long description for the route
  * UibRouterConfig
  * @typedef {object} UibRouterConfig Configuration for the UiBRouter class instances
  * @property {routeDefinition[]} routes REQUIRED. Array of route definitions
@@ -61,6 +50,8 @@ class UibRouter { // eslint-disable-line no-unused-vars
     currentRouteId
     /** The previous route id after doRoute() has been called */
     previousRouteId
+    /** Array of route ID's (created in constructor) */
+    routeIds = []
 
     /** Internal only. Set to true when the _start() method has been called */
     #startDone = false
@@ -85,9 +76,11 @@ class UibRouter { // eslint-disable-line no-unused-vars
         // Create/access the route container element, sets this.routeContainerEl
         this._setRouteContainer()
 
+        this._updateRouteIds()
+
         // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects
         // Note that final `then` is called even if no external routes are given
-        Promise.all(Object.values(routerConfig.routes).filter(r => r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return
+        Promise.all(Object.values(routerConfig.routes).filter(r => r.type && r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return
             .then(this._appendExternalTemplates)
             .then( () => { // eslint-disable-line promise/always-return
                 // Everything is loaded so we can start
@@ -221,6 +214,11 @@ class UibRouter { // eslint-disable-line no-unused-vars
             scr.remove() // remove the origin
         })
     }
+
+    /** Update this.routeIds array from this.config (on start and after add/remove routes) */
+    _updateRouteIds() {
+        this.routeIds = new Set(Object.values(routerConfig.routes).map( r => r.id ))
+    }
     //#endregion --- ----- --
 
     /** Process a routing request
@@ -271,7 +269,7 @@ class UibRouter { // eslint-disable-line no-unused-vars
         let routeShown = false
 
         // If no defined valid route, undo and throw error
-        if (!newRouteId || !this.routeList().includes(newRouteId)) {
+        if (!newRouteId || !this.routeIds.has(newRouteId)) {
             // Events on route change fail ...
             document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))
             if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef
@@ -331,7 +329,8 @@ class UibRouter { // eslint-disable-line no-unused-vars
         if (uibuilder) {
             uibuilder.set('uibrouter', 'route changed')
             uibuilder.set('uibrouter_CurrentRoute', newRouteId)
-            uibuilder.set('uibrouter_CurrentHeading', this.routeHeading())
+            uibuilder.set('uibrouter_CurrentTitle', this.routeTitle())
+            uibuilder.set('uibrouter_CurrentDescription', this.routeDescription())
             uibuilder.set('uibrouter_CurrentDetails', this.getRouteConfigById(newRouteId))
         }
     }
@@ -359,6 +358,7 @@ class UibRouter { // eslint-disable-line no-unused-vars
         if (this.config.defaultRoute) this.doRoute(this.config.defaultRoute)
     }
 
+    /** Remove the hash from the browser URL */
     removeHash() {
         history.pushState('', document.title, window.location.pathname + window.location.search)
     }
@@ -383,23 +383,26 @@ class UibRouter { // eslint-disable-line no-unused-vars
      * @returns {string[]} Array of route id's or route url hashes
      */
     routeList(returnHash) {
-        return Object.values(this.config.routes).map((r) => returnHash === true ? `#${r.id}` : r.id)
+        if (returnHash === true) return this.routeIds.map((r) => returnHash === true ? `#${r.id}` : r.id)
+        return this.routeIds
     }
 
     /** Add new route definitions to the existing ones
-     * @param {routeDefinition|routeDefinition[]} routeConfig Single or array of route definitions to add
+     * @param {routeDefinition|routeDefinition[]} routeDefn Single or array of route definitions to add
      */
-    addRoutes(routeConfig) {
-        if (!Array.isArray(routeConfig)) routeConfig = [routeConfig]
+    addRoutes(routeDefn) {
+        if (!Array.isArray(routeDefn)) routeDefn = [routeDefn]
         // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects
         // Note that final `then` is called even if no external routes are given
-        Promise.all(Object.values(routeConfig).filter(r => r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return
+        Promise.all(Object.values(routeDefn).filter(r => r.type && r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return
             .then(this._appendExternalTemplates)
             .then( () => { // eslint-disable-line promise/always-return
                 // Everything is loaded - Add new routes to config
-                this.config.routes.push(...routeConfig)
+                this.config.routes.push(...routeDefn)
+                // and update the routeIds list
+                this._updateRouteIds()
                 // Let everyone know it all finished
-                document.dispatchEvent(new CustomEvent('uibrouter:routes-added', { detail: routeConfig }))
+                document.dispatchEvent(new CustomEvent('uibrouter:routes-added', { detail: routeDefn }))
                 if (uibuilder) uibuilder.set('uibrouter', 'routes added') // eslint-disable-line no-undef, promise/always-return
             } )
     }
@@ -419,9 +422,14 @@ class UibRouter { // eslint-disable-line no-unused-vars
         })
     }
 
-    routeHeading() {
+    routeTitle() {
+        const thisRoute = this.currentRoute() || {}
+        return thisRoute.title || thisRoute.id || '[ROUTE NOT FOUND]'
+    }
+
+    routeDescription() {
         const thisRoute = this.currentRoute() || {}
-        return thisRoute.heading || thisRoute.title || thisRoute.description || thisRoute.id || '[ROUTE NOT FOUND]'
+        return thisRoute.description || thisRoute.id || '[ROUTE NOT FOUND]'
     }
 
     currentRoute() {

From e3516d0d49440632285638ddc72fda13cf137bbc Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Sat, 30 Dec 2023 14:01:09 +0000
Subject: [PATCH 59/78] Re-order utility fns alphabetically

---
 front-end/uibuilder.esm.js               | 217 +++++++++++-----------
 front-end/uibuilder.esm.min.js           |   2 +-
 front-end/uibuilder.esm.min.js.map       |   6 +-
 front-end/uibuilder.iife.js              | 217 +++++++++++-----------
 front-end/uibuilder.iife.min.js          |   2 +-
 front-end/uibuilder.iife.min.js.map      |   6 +-
 src/front-end-module/uibuilder.module.js | 223 ++++++++++++-----------
 7 files changed, 338 insertions(+), 335 deletions(-)

diff --git a/front-end/uibuilder.esm.js b/front-end/uibuilder.esm.js
index 41cdb1f8..7b85828b 100644
--- a/front-end/uibuilder.esm.js
+++ b/front-end/uibuilder.esm.js
@@ -5004,6 +5004,7 @@ var Uib = (_a = class {
         }
       }
     });
+    // --- End of elementIsVisible --- //
     //#endregion -------- -------- -------- //
     //#region ------- UI handlers --------- //
     //#region -- Direct to _ui --
@@ -5352,6 +5353,102 @@ var Uib = (_a = class {
       }
     }
   }
+  /** Set up an event listener to watch for hash changes
+   * and set the watchable urlHash variable
+   */
+  _watchHashChanges() {
+    this.set("urlHash", location.hash);
+    window.addEventListener("hashchange", (event2) => {
+      this.set("urlHash", location.hash);
+      if (__privateGet(this, _sendUrlHash) === true) {
+        this.send({ topic: "hashChange", payload: location.hash, newHash: this.keepHashFromUrl(event2.newURL), oldHash: this.keepHashFromUrl(event2.oldURL) });
+      }
+    });
+  }
+  /** Copies a uibuilder variable to the browser clipboard
+   * @param {string} varToCopy The name of the uibuilder variable to copy to the clipboard
+   */
+  copyToClipboard(varToCopy) {
+    let data = "";
+    try {
+      data = JSON.stringify(this.get(varToCopy));
+    } catch (e) {
+      log("error", "copyToClipboard", `Could not copy "${varToCopy}" to clipboard.`, e.message)();
+    }
+    navigator.clipboard.writeText(data);
+  }
+  // --- End of copyToClipboard --- //
+  /** Does the chosen CSS Selector currently exist?
+   * Automatically sends a msg back to Node-RED unless turned off.
+   * @param {string} cssSelector Required. CSS Selector to examine for visibility
+   * @param {boolean} [msg] Optional, default=true. If true also sends a message back to Node-RED
+   * @returns {boolean} True if the element exists
+   */
+  elementExists(cssSelector, msg = true) {
+    const el = document.querySelector(cssSelector);
+    let exists = false;
+    if (el !== null)
+      exists = true;
+    if (msg === true) {
+      this.send({
+        payload: exists,
+        info: `Element "${cssSelector}" ${exists ? "exists" : "does not exist"}`
+      });
+    }
+    return exists;
+  }
+  // --- End of elementExists --- //
+  /** Format a number using the INTL standard library - compatible with uib-var filter function
+   * @param {number} value Number to format
+   * @param {number} decimalPlaces Number of decimal places to include. Default=no default
+   * @param {string} intl standard locale spec, e.g. "ja-JP" or "en-GB". Default=navigator.language
+   * @param {object} opts INTL library options object. Optional
+   * @returns {string} formatted number
+   * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/toLocaleString
+   */
+  formatNumber(value2, decimalPlaces, intl, opts) {
+    if (isNaN(value2)) {
+      log("error", "formatNumber", `Value must be a number. Value type: "${typeof value2}"`)();
+      return "NaN";
+    }
+    if (!opts)
+      opts = {};
+    if (!intl)
+      intl = navigator.language ? navigator.language : "en-GB";
+    if (decimalPlaces) {
+      opts.minimumFractionDigits = decimalPlaces;
+      opts.maximumFractionDigits = decimalPlaces;
+    }
+    let out;
+    try {
+      out = Number(value2).toLocaleString(intl, opts);
+    } catch (e) {
+      log("error", "formatNumber", `${e.message}. value=${value2}, dp=${decimalPlaces}, intl="${intl}", opts=${JSON.stringify(opts)}`)();
+      return "NaN";
+    }
+    return out;
+  }
+  /** Only keep the URL Hash & ignoring query params
+   * @param {string} url URL to extract the hash from
+   * @returns {string} Just the route id
+   */
+  keepHashFromUrl(url2) {
+    if (!url2)
+      return "";
+    return "#" + url2.replace(/^.*#(.*)/, "$1").replace(/\?.*$/, "");
+  }
+  log() {
+    log(...arguments)();
+  }
+  /** Navigate to a new page or a new route (hash)
+   * @param {string} url URL to navigate to. Can be absolute or relative (to current page) or just a hash for a route change
+   * @returns {Location} The new window.location string
+   */
+  navigate(url2) {
+    if (url2)
+      window.location.href = url2;
+    return window.location;
+  }
   /** Set the default originator. Set to '' to ignore. Used with uib-sender.
    * @param {string} [originator] A Node-RED node ID to return the message to
    */
@@ -5396,9 +5493,6 @@ var Uib = (_a = class {
     }
   }
   // ---- End of ping ---- //
-  log() {
-    log(...arguments)();
-  }
   /** Convert JSON to Syntax Highlighted HTML
    * @param {object} json A JSON/JavaScript Object
    * @returns {html} Object reformatted as highlighted HTML
@@ -5407,74 +5501,6 @@ var Uib = (_a = class {
     return syntaxHighlight(json);
   }
   // --- End of syntaxHighlight --- //
-  /** Copies a uibuilder variable to the browser clipboard
-   * @param {string} varToCopy The name of the uibuilder variable to copy to the clipboard
-   */
-  copyToClipboard(varToCopy) {
-    let data = "";
-    try {
-      data = JSON.stringify(this.get(varToCopy));
-    } catch (e) {
-      log("error", "copyToClipboard", `Could not copy "${varToCopy}" to clipboard.`, e.message)();
-    }
-    navigator.clipboard.writeText(data);
-  }
-  // --- End of copyToClipboard --- //
-  /** DEPRECATED FOR NOW - wasn't working properly.
-   * Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.
-   * Requires IntersectionObserver (available to all mainstream browsers from early 2019)
-   * Automatically sends a msg back to Node-RED.
-   * Requires the element to already exist.
-   * @returns {false} False if not visible
-   */
-  elementIsVisible() {
-    const info = "elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex";
-    log("error", "uib:elementIsVisible", info)();
-    this.send({ payload: "elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex" });
-    return false;
-  }
-  // --- End of elementIsVisible --- //
-  /** Does the chosen CSS Selector currently exist?
-   * Automatically sends a msg back to Node-RED unless turned off.
-   * @param {string} cssSelector Required. CSS Selector to examine for visibility
-   * @param {boolean} [msg] Optional, default=true. If true also sends a message back to Node-RED
-   * @returns {boolean} True if the element exists
-   */
-  elementExists(cssSelector, msg = true) {
-    const el = document.querySelector(cssSelector);
-    let exists = false;
-    if (el !== null)
-      exists = true;
-    if (msg === true) {
-      this.send({
-        payload: exists,
-        info: `Element "${cssSelector}" ${exists ? "exists" : "does not exist"}`
-      });
-    }
-    return exists;
-  }
-  // --- End of elementExists --- //
-  /** Only keep the URL Hash & ignoring query params
-   * @param {string} url URL to extract the hash from
-   * @returns {string} Just the route id
-   */
-  keepHashFromUrl(url2) {
-    if (!url2)
-      return "";
-    return "#" + url2.replace(/^.*#(.*)/, "$1").replace(/\?.*$/, "");
-  }
-  /** Set up an event listener to watch for hash changes
-   * and set the watchable urlHash variable
-   */
-  _watchHashChanges() {
-    this.set("urlHash", location.hash);
-    window.addEventListener("hashchange", (event2) => {
-      this.set("urlHash", location.hash);
-      if (__privateGet(this, _sendUrlHash) === true) {
-        this.send({ topic: "hashChange", payload: location.hash, newHash: this.keepHashFromUrl(event2.newURL), oldHash: this.keepHashFromUrl(event2.oldURL) });
-      }
-    });
-  }
   /** Returns true/false or a default value for truthy/falsy and other values
    * @param {string|number|boolean|*} val The value to test
    * @param {any} deflt Default value to use if the value is not truthy/falsy
@@ -5498,44 +5524,18 @@ var Uib = (_a = class {
     __privateSet(this, _sendUrlHash, this.truthy(toggle, __privateGet(this, _sendUrlHash) !== true));
     return __privateGet(this, _sendUrlHash);
   }
-  /** Navigate to a new page or a new route (hash)
-   * @param {string} url URL to navigate to. Can be absolute or relative (to current page) or just a hash for a route change
-   * @returns {Location} The new window.location string
-   */
-  navigate(url2) {
-    if (url2)
-      window.location.href = url2;
-    return window.location;
-  }
-  /** Format a number using the INTL standard library - compatible with uib-var filter function
-   * @param {number} value Number to format
-   * @param {number} decimalPlaces Number of decimal places to include. Default=no default
-   * @param {string} intl standard locale spec, e.g. "ja-JP" or "en-GB". Default=navigator.language
-   * @param {object} opts INTL library options object. Optional
-   * @returns {string} formatted number
-   * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/toLocaleString
+  /** DEPRECATED FOR NOW - wasn't working properly.
+   * Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.
+   * Requires IntersectionObserver (available to all mainstream browsers from early 2019)
+   * Automatically sends a msg back to Node-RED.
+   * Requires the element to already exist.
+   * @returns {false} False if not visible
    */
-  formatNumber(value2, decimalPlaces, intl, opts) {
-    if (isNaN(value2)) {
-      log("error", "formatNumber", `Value must be a number. Value type: "${typeof value2}"`)();
-      return "NaN";
-    }
-    if (!opts)
-      opts = {};
-    if (!intl)
-      intl = navigator.language ? navigator.language : "en-GB";
-    if (decimalPlaces) {
-      opts.minimumFractionDigits = decimalPlaces;
-      opts.maximumFractionDigits = decimalPlaces;
-    }
-    let out;
-    try {
-      out = Number(value2).toLocaleString(intl, opts);
-    } catch (e) {
-      log("error", "formatNumber", `${e.message}. value=${value2}, dp=${decimalPlaces}, intl="${intl}", opts=${JSON.stringify(opts)}`)();
-      return "NaN";
-    }
-    return out;
+  elementIsVisible() {
+    const info = "elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex";
+    log("error", "uib:elementIsVisible", info)();
+    this.send({ payload: "elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex" });
+    return false;
   }
   /** Converts markdown text input to HTML if the Markdown-IT library is loaded
    * Otherwise simply returns the text
@@ -6463,6 +6463,7 @@ ${document.documentElement.outerHTML}`;
     this._send(msg, this._ioChannels.client, originator);
   }
   // ! TODO: Rooms do not auto-reconnect. Add tracking and update _onConnect
+  // ! TODO: Add receipt handler on joining a room.
   // NOTE: Rooms only understood by server not client so we have to use custom emits
   //       They do not auto-reconnect
   /** Send a msg to a pre-defined Socket.IO room
diff --git a/front-end/uibuilder.esm.min.js b/front-end/uibuilder.esm.min.js
index e160258c..0df4e6a0 100644
--- a/front-end/uibuilder.esm.min.js
+++ b/front-end/uibuilder.esm.min.js
@@ -1,2 +1,2 @@
-var _t=Object.create;var le=Object.defineProperty;var Et=Object.getOwnPropertyDescriptor;var Ct=Object.getOwnPropertyNames;var St=Object.getPrototypeOf,xt=Object.prototype.hasOwnProperty;var Nt=(s,e,t)=>e in s?le(s,e,{enumerable:!0,configurable:!0,writable:!0,value:t}):s[e]=t;var Me=(s=>typeof require<"u"?require:typeof Proxy<"u"?new Proxy(s,{get:(e,t)=>(typeof require<"u"?require:e)[t]}):s)(function(s){if(typeof require<"u")return require.apply(this,arguments);throw Error('Dynamic require of "'+s+'" is not supported')});var Ot=(s,e)=>()=>(e||s((e={exports:{}}).exports,e),e.exports),Rt=(s,e)=>{for(var t in e)le(s,t,{get:e[t],enumerable:!0})},At=(s,e,t,i)=>{if(e&&typeof e=="object"||typeof e=="function")for(let r of Ct(e))!xt.call(s,r)&&r!==t&&le(s,r,{get:()=>e[r],enumerable:!(i=Et(e,r))||i.enumerable});return s};var Ee=(s,e,t)=>(t=s!=null?_t(St(s)):{},At(e||!s||!s.__esModule?le(t,"default",{value:s,enumerable:!0}):t,s));var l=(s,e,t)=>(Nt(s,typeof e!="symbol"?e+"":e,t),t),Be=(s,e,t)=>{if(!e.has(s))throw TypeError("Cannot "+t)};var u=(s,e,t)=>(Be(s,e,"read from private field"),t?t.call(s):e.get(s)),C=(s,e,t)=>{if(e.has(s))throw TypeError("Cannot add the same private member more than once");e instanceof WeakSet?e.add(s):e.set(s,t)},A=(s,e,t,i)=>(Be(s,e,"write to private field"),i?i.call(s,t):e.set(s,t),t);var qe=Ot((ii,Pe)=>{var f,$t=(f=class{constructor(e,t,i){l(this,"version","6.8.0-src");l(this,"sanitiseExtraTags",["uib-var"]);l(this,"sanitiseExtraAttribs",["variable","report","undefined"]);l(this,"window");if(e)this.window=e;else throw new Error("Ui:constructor. Current environment does not include `window`, UI functions cannot be used.");this.document=this.window.document,t?f.log=t:f.log=function(){return function(){}},i?this.syntaxHighlight=i:this.syntaxHighlight=function(){}}_showNotification(e){e.topic&&!e.title&&(e.title=e.topic),e.title||(e.title="uibuilder notification"),e.payload&&!e.body&&(e.body=e.payload),e.body||(e.body=" No message given.");try{let t=new Notification(e.title,e);return new Promise((i,r)=>{t.addEventListener("close",n=>{n.currentTarget.userAction="close",i(n)}),t.addEventListener("click",n=>{n.currentTarget.userAction="click",i(n)}),t.addEventListener("error",n=>{n.currentTarget.userAction="error",r(n)})})}catch{return Promise.reject(new Error("Browser refused to create a Notification"))}}_uiAdd(e,t){f.log("trace","Ui:_uiManager:add","Starting _uiAdd")(),e.components.forEach((i,r)=>{f.log("trace","Ui:_uiAdd:components-forEach:".concat(r),"Component to add: ",i)();let n;switch(i.type){case"html":{i.ns="html",n=this.document.createElement("div");break}case"svg":{i.ns="svg",n=this.document.createElementNS("http://www.w3.org/2000/svg","svg");break}default:{i.ns="dom",n=this.document.createElement(i.type);break}}!i.slot&&e.payload&&(i.slot=e.payload),this._uiComposeComponent(n,i);let o;i.parentEl?o=i.parentEl:e.parentEl?o=e.parentEl:i.parent?o=this.document.querySelector(i.parent):e.parent&&(o=this.document.querySelector(e.parent)),o||(f.log("info","Ui:_uiAdd","No parent found, adding to body")(),o=this.document.querySelector("body")),i.position&&i.position==="first"?o.insertBefore(n,o.firstChild):i.position&&Number.isInteger(Number(i.position))?o.insertBefore(n,o.children[i.position]):o.appendChild(n),i.components&&this._uiExtendEl(n,i.components,i.ns)})}_uiComposeComponent(e,t){t.attributes&&Object.keys(t.attributes).forEach(i=>{i==="class"&&Array.isArray(t.attributes[i])&&t.attributes[i].join(" "),i==="value"&&(e.value=t.attributes[i]),i.startsWith("xlink:")?e.setAttributeNS("http://www.w3.org/1999/xlink",i,t.attributes[i]):e.setAttribute(i,t.attributes[i])}),t.id&&e.setAttribute("id",t.id),t.type==="svg"&&(e.setAttributeNS("http://www.w3.org/2000/xmlns/","xmlns","http://www.w3.org/2000/svg"),e.setAttributeNS("http://www.w3.org/2000/xmlns/","xmlns:xlink","http://www.w3.org/1999/xlink")),t.events&&Object.keys(t.events).forEach(i=>{i.toLowerCase==="onclick"&&(i="click");try{e.addEventListener(i,r=>{new Function("evt","".concat(t.events[i],"(evt)"))(r)})}catch(r){f.log("error","Ui:_uiComposeComponent","Add event '".concat(i,"' for element '").concat(t.type,"': Cannot add event handler. ").concat(r.message))()}}),t.properties&&Object.keys(t.properties).forEach(i=>{e[i]=t.properties[i]}),t.slot&&this.replaceSlot(e,t),t.slotMarkdown&&this.replaceSlotMarkdown(e,t)}_uiExtendEl(e,t,i=""){t.forEach((r,n)=>{f.log("trace","Ui:_uiExtendEl:components-forEach:".concat(n),r)();let o;r.ns=i,r.ns==="html"?(o=e,e.innerHTML=r.slot):r.ns==="svg"?(o=this.document.createElementNS("http://www.w3.org/2000/svg",r.type),this._uiComposeComponent(o,r),e.appendChild(o)):(o=this.document.createElement(r.type==="html"?"div":r.type),this._uiComposeComponent(o,r),e.appendChild(o)),r.components&&this._uiExtendEl(o,r.components,r.ns)})}_uiLoad(e){e.components&&(Array.isArray(e.components)||(e.components=[e.components]),e.components.forEach(async t=>{await Promise.resolve().then(()=>Ee(Me(t)))})),e.srcScripts&&(Array.isArray(e.srcScripts)||(e.srcScripts=[e.srcScripts]),e.srcScripts.forEach(t=>{this.loadScriptSrc(t)})),e.txtScripts&&(Array.isArray(e.txtScripts)||(e.txtScripts=[e.txtScripts]),this.loadScriptTxt(e.txtScripts.join("\n"))),e.srcStyles&&(Array.isArray(e.srcStyles)||(e.srcStyles=[e.srcStyles]),e.srcStyles.forEach(t=>{this.loadStyleSrc(t)})),e.txtStyles&&(Array.isArray(e.txtStyles)||(e.txtStyles=[e.txtStyles]),this.loadStyleTxt(e.txtStyles.join("\n")))}_uiManager(e){e._ui&&(Array.isArray(e._ui)||(e._ui=[e._ui]),e._ui.forEach((t,i)=>{if(!t.method){f.log("error","Ui:_uiManager","No method defined for msg._ui[".concat(i,"]. Ignoring"))();return}switch(t.payload=e.payload,t.topic=e.topic,t.method){case"add":{this._uiAdd(t,!1);break}case"remove":{this._uiRemove(t,!1);break}case"removeAll":{this._uiRemove(t,!0);break}case"replace":{this._uiReplace(t);break}case"update":{this._uiUpdate(t);break}case"load":{this._uiLoad(t);break}case"reload":{this._uiReload();break}case"notify":{this.showDialog("notify",t,e);break}case"alert":{this.showDialog("alert",t,e);break}default:{f.log("error","Ui:_uiManager","Invalid msg._ui[".concat(i,"].method (").concat(t.method,"). Ignoring"))();break}}}))}_uiReload(){f.log("trace","Ui:uiManager:reload","reloading")(),location.reload()}_uiRemove(e,t=!1){e.components.forEach(i=>{let r;t!==!0?r=[this.document.querySelector(i)]:r=this.document.querySelectorAll(i),r.forEach(n=>{try{n.remove()}catch(o){f.log("trace","Ui:_uiRemove","Could not remove. 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i=0;i<t.length;i++)this.engine.write(t[i],e.options)}cleanup(){this.subs.forEach(e=>e()),this.subs.length=0,this.decoder.destroy()}_close(){this.skipReconnect=!0,this._reconnecting=!1,this.onclose("forced close"),this.engine&&this.engine.close()}disconnect(){return this._close()}onclose(e,t){this.cleanup(),this.backoff.reset(),this._readyState="closed",this.emitReserved("close",e,t),this._reconnection&&!this.skipReconnect&&this.reconnect()}reconnect(){if(this._reconnecting||this.skipReconnect)return this;let e=this;if(this.backoff.attempts>=this._reconnectionAttempts)this.backoff.reset(),this.emitReserved("reconnect_failed"),this._reconnecting=!1;else{let t=this.backoff.duration();this._reconnecting=!0;let 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n(){i||(i=!0,g(),t.close(),t=null)}let o=x=>{let _=new Error("probe error: "+x);_.transport=t.name,n(),this.emitReserved("upgradeError",_)};function c(){o("transport closed")}function h(){o("socket closed")}function d(x){t&&x.name!==t.name&&n()}let g=()=>{t.removeListener("open",r),t.removeListener("error",o),t.removeListener("close",c),this.off("close",h),this.off("upgrading",d)};t.once("open",r),t.once("error",o),t.once("close",c),this.once("close",h),this.once("upgrading",d),this.upgrades.indexOf("webtransport")!==-1&&e!=="webtransport"?this.setTimeoutFn(()=>{i||t.open()},200):t.open()}onOpen(){if(this.readyState="open",s.priorWebsocketSuccess=this.transport.name==="websocket",this.emitReserved("open"),this.flush(),this.readyState==="open"&&this.opts.upgrade){let 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error");t.code=e.data,this.onError(t);break;case"message":this.emitReserved("data",e.data),this.emitReserved("message",e.data);break}}onHandshake(e){this.emitReserved("handshake",e),this.id=e.sid,this.transport.query.sid=e.sid,this.upgrades=this.filterUpgrades(e.upgrades),this.pingInterval=e.pingInterval,this.pingTimeout=e.pingTimeout,this.maxPayload=e.maxPayload,this.onOpen(),this.readyState!=="closed"&&this.resetPingTimeout()}resetPingTimeout(){this.clearTimeoutFn(this.pingTimeoutTimer),this.pingTimeoutTimer=this.setTimeoutFn(()=>{this.onClose("ping timeout")},this.pingInterval+this.pingTimeout),this.opts.autoUnref&&this.pingTimeoutTimer.unref()}onDrain(){this.writeBuffer.splice(0,this.prevBufferLen),this.prevBufferLen=0,this.writeBuffer.length===0?this.emitReserved("drain"):this.flush()}flush(){if(this.readyState!=="closed"&&this.transport.writable&&!this.upgrading&&this.writeBuffer.length){let e=this.getWritablePackets();this.transport.send(e),this.prevBufferLen=e.length,this.emitReserved("flush")}}getWritablePackets(){if(!(this.maxPayload&&this.transport.name==="polling"&&this.writeBuffer.length>1))return this.writeBuffer;let t=1;for(let i=0;i<this.writeBuffer.length;i++){let r=this.writeBuffer[i].data;if(r&&(t+=tt(r)),i>0&&t>this.maxPayload)return this.writeBuffer.slice(0,i);t+=2}return this.writeBuffer}write(e,t,i){return this.sendPacket("message",e,t,i),this}send(e,t,i){return this.sendPacket("message",e,t,i),this}sendPacket(e,t,i,r){if(typeof t=="function"&&(r=t,t=void 0),typeof i=="function"&&(r=i,i=null),this.readyState==="closing"||this.readyState==="closed")return;i=i||{},i.compress=i.compress!==!1;let n={type:e,data:t,options:i};this.emitReserved("packetCreate",n),this.writeBuffer.push(n),r&&this.once("flush",r),this.flush()}close(){let e=()=>{this.onClose("forced close"),this.transport.close()},t=()=>{this.off("upgrade",t),this.off("upgradeError",t),e()},i=()=>{this.once("upgrade",t),this.once("upgradeError",t)};return(this.readyState==="opening"||this.readyState==="open")&&(this.readyState="closing",this.writeBuffer.length?this.once("drain",()=>{this.upgrading?i():e()}):this.upgrading?i():e()),this}onError(e){s.priorWebsocketSuccess=!1,this.emitReserved("error",e),this.onClose("transport error",e)}onClose(e,t){(this.readyState==="opening"||this.readyState==="open"||this.readyState==="closing")&&(this.clearTimeoutFn(this.pingTimeoutTimer),this.transport.removeAllListeners("close"),this.transport.close(),this.transport.removeAllListeners(),typeof removeEventListener=="function"&&(removeEventListener("beforeunload",this.beforeunloadEventListener,!1),removeEventListener("offline",this.offlineEventListener,!1)),this.readyState="closed",this.id=null,this.emitReserved("close",e,t),this.writeBuffer=[],this.prevBufferLen=0)}filterUpgrades(e){let t=[],i=0,r=e.length;for(;i<r;i++)~this.transports.indexOf(e[i])&&t.push(e[i]);return t}};B.protocol=xe;var us=B.protocol;function ft(s,e="",t){let i=s;t=t||typeof location<"u"&&location,s==null&&(s=t.protocol+"//"+t.host),typeof s=="string"&&(s.charAt(0)==="/"&&(s.charAt(1)==="/"?s=t.protocol+s:s=t.host+s),/^(https?|wss?):\/\//.test(s)||(typeof t<"u"?s=t.protocol+"//"+s:s="https://"+s),i=j(s)),i.port||(/^(http|ws)$/.test(i.protocol)?i.port="80":/^(http|ws)s$/.test(i.protocol)&&(i.port="443")),i.path=i.path||"/";let n=i.host.indexOf(":")!==-1?"["+i.host+"]":i.host;return i.id=i.protocol+"://"+n+":"+i.port+e,i.href=i.protocol+"://"+n+(t&&t.port===i.port?"":":"+i.port),i}var Ie={};Rt(Ie,{Decoder:()=>Le,Encoder:()=>Te,PacketType:()=>p,protocol:()=>yt});var Kt=typeof ArrayBuffer=="function",Jt=s=>typeof ArrayBuffer.isView=="function"?ArrayBuffer.isView(s):s.buffer instanceof ArrayBuffer,pt=Object.prototype.toString,zt=typeof Blob=="function"||typeof Blob<"u"&&pt.call(Blob)==="[object BlobConstructor]",Gt=typeof File=="function"||typeof File<"u"&&pt.call(File)==="[object FileConstructor]";function se(s){return Kt&&(s instanceof ArrayBuffer||Jt(s))||zt&&s instanceof Blob||Gt&&s instanceof File}function ie(s,e){if(!s||typeof s!="object")return!1;if(Array.isArray(s)){for(let t=0,i=s.length;t<i;t++)if(ie(s[t]))return!0;return!1}if(se(s))return!0;if(s.toJSON&&typeof s.toJSON=="function"&&arguments.length===1)return ie(s.toJSON(),!0);for(let t in s)if(Object.prototype.hasOwnProperty.call(s,t)&&ie(s[t]))return!0;return!1}function mt(s){let e=[],t=s.data,i=s;return i.data=Ae(t,e),i.attachments=e.length,{packet:i,buffers:e}}function Ae(s,e){if(!s)return s;if(se(s)){let t={_placeholder:!0,num:e.length};return e.push(s),t}else if(Array.isArray(s)){let t=new Array(s.length);for(let i=0;i<s.length;i++)t[i]=Ae(s[i],e);return t}else if(typeof s=="object"&&!(s instanceof Date)){let t={};for(let i in s)Object.prototype.hasOwnProperty.call(s,i)&&(t[i]=Ae(s[i],e));return t}return s}function bt(s,e){return s.data=$e(s.data,e),delete s.attachments,s}function $e(s,e){if(!s)return s;if(s&&s._placeholder===!0){if(typeof s.num=="number"&&s.num>=0&&s.num<e.length)return e[s.num];throw new Error("illegal attachments")}else if(Array.isArray(s))for(let t=0;t<s.length;t++)s[t]=$e(s[t],e);else if(typeof s=="object")for(let t in s)Object.prototype.hasOwnProperty.call(s,t)&&(s[t]=$e(s[t],e));return s}var Yt=["connect","connect_error","disconnect","disconnecting","newListener","removeListener"],yt=5,p;(function(s){s[s.CONNECT=0]="CONNECT",s[s.DISCONNECT=1]="DISCONNECT",s[s.EVENT=2]="EVENT",s[s.ACK=3]="ACK",s[s.CONNECT_ERROR=4]="CONNECT_ERROR",s[s.BINARY_EVENT=5]="BINARY_EVENT",s[s.BINARY_ACK=6]="BINARY_ACK"})(p||(p={}));var Te=class{constructor(e){this.replacer=e}encode(e){return(e.type===p.EVENT||e.type===p.ACK)&&ie(e)?this.encodeAsBinary({type:e.type===p.EVENT?p.BINARY_EVENT:p.BINARY_ACK,nsp:e.nsp,data:e.data,id:e.id}):[this.encodeAsString(e)]}encodeAsString(e){let t=""+e.type;return(e.type===p.BINARY_EVENT||e.type===p.BINARY_ACK)&&(t+=e.attachments+"-"),e.nsp&&e.nsp!=="/"&&(t+=e.nsp+","),e.id!=null&&(t+=e.id),e.data!=null&&(t+=JSON.stringify(e.data,this.replacer)),t}encodeAsBinary(e){let t=mt(e),i=this.encodeAsString(t.packet),r=t.buffers;return r.unshift(i),r}};function gt(s){return Object.prototype.toString.call(s)==="[object Object]"}var Le=class s extends y{constructor(e){super(),this.reviver=e}add(e){let t;if(typeof e=="string"){if(this.reconstructor)throw new Error("got plaintext data when reconstructing a packet");t=this.decodeString(e);let i=t.type===p.BINARY_EVENT;i||t.type===p.BINARY_ACK?(t.type=i?p.EVENT:p.ACK,this.reconstructor=new Ue(t),t.attachments===0&&super.emitReserved("decoded",t)):super.emitReserved("decoded",t)}else if(se(e)||e.base64)if(this.reconstructor)t=this.reconstructor.takeBinaryData(e),t&&(this.reconstructor=null,super.emitReserved("decoded",t));else throw new Error("got binary data when not reconstructing a packet");else throw new Error("Unknown type: "+e)}decodeString(e){let t=0,i={type:Number(e.charAt(0))};if(p[i.type]===void 0)throw new Error("unknown packet type "+i.type);if(i.type===p.BINARY_EVENT||i.type===p.BINARY_ACK){let n=t+1;for(;e.charAt(++t)!=="-"&&t!=e.length;);let o=e.substring(n,t);if(o!=Number(o)||e.charAt(t)!=="-")throw new Error("Illegal attachments");i.attachments=Number(o)}if(e.charAt(t+1)==="/"){let n=t+1;for(;++t&&!(e.charAt(t)===","||t===e.length););i.nsp=e.substring(n,t)}else i.nsp="/";let r=e.charAt(t+1);if(r!==""&&Number(r)==r){let n=t+1;for(;++t;){let o=e.charAt(t);if(o==null||Number(o)!=o){--t;break}if(t===e.length)break}i.id=Number(e.substring(n,t+1))}if(e.charAt(++t)){let n=this.tryParse(e.substr(t));if(s.isPayloadValid(i.type,n))i.data=n;else throw new Error("invalid payload")}return i}tryParse(e){try{return JSON.parse(e,this.reviver)}catch{return!1}}static isPayloadValid(e,t){switch(e){case p.CONNECT:return gt(t);case p.DISCONNECT:return t===void 0;case p.CONNECT_ERROR:return typeof t=="string"||gt(t);case p.EVENT:case p.BINARY_EVENT:return Array.isArray(t)&&(typeof t[0]=="number"||typeof t[0]=="string"&&Yt.indexOf(t[0])===-1);case p.ACK:case p.BINARY_ACK:return Array.isArray(t)}}destroy(){this.reconstructor&&(this.reconstructor.finishedReconstruction(),this.reconstructor=null)}},Ue=class{constructor(e){this.packet=e,this.buffers=[],this.reconPack=e}takeBinaryData(e){if(this.buffers.push(e),this.buffers.length===this.reconPack.attachments){let t=bt(this.reconPack,this.buffers);return this.finishedReconstruction(),t}return null}finishedReconstruction(){this.reconPack=null,this.buffers=[]}};function S(s,e,t){return s.on(e,t),function(){s.off(e,t)}}var Xt=Object.freeze({connect:1,connect_error:1,disconnect:1,disconnecting:1,newListener:1,removeListener:1}),W=class extends y{constructor(e,t,i){super(),this.connected=!1,this.recovered=!1,this.receiveBuffer=[],this.sendBuffer=[],this._queue=[],this._queueSeq=0,this.ids=0,this.acks={},this.flags={},this.io=e,this.nsp=t,i&&i.auth&&(this.auth=i.auth),this._opts=Object.assign({},i),this.io._autoConnect&&this.open()}get disconnected(){return!this.connected}subEvents(){if(this.subs)return;let e=this.io;this.subs=[S(e,"open",this.onopen.bind(this)),S(e,"packet",this.onpacket.bind(this)),S(e,"error",this.onerror.bind(this)),S(e,"close",this.onclose.bind(this))]}get active(){return!!this.subs}connect(){return this.connected?this:(this.subEvents(),this.io._reconnecting||this.io.open(),this.io._readyState==="open"&&this.onopen(),this)}open(){return this.connect()}send(...e){return e.unshift("message"),this.emit.apply(this,e),this}emit(e,...t){if(Xt.hasOwnProperty(e))throw new Error('"'+e.toString()+'" is a reserved event name');if(t.unshift(e),this._opts.retries&&!this.flags.fromQueue&&!this.flags.volatile)return this._addToQueue(t),this;let i={type:p.EVENT,data:t};if(i.options={},i.options.compress=this.flags.compress!==!1,typeof t[t.length-1]=="function"){let o=this.ids++,c=t.pop();this._registerAckCallback(o,c),i.id=o}let r=this.io.engine&&this.io.engine.transport&&this.io.engine.transport.writable;return this.flags.volatile&&(!r||!this.connected)||(this.connected?(this.notifyOutgoingListeners(i),this.packet(i)):this.sendBuffer.push(i)),this.flags={},this}_registerAckCallback(e,t){var i;let r=(i=this.flags.timeout)!==null&&i!==void 0?i:this._opts.ackTimeout;if(r===void 0){this.acks[e]=t;return}let n=this.io.setTimeoutFn(()=>{delete this.acks[e];for(let o=0;o<this.sendBuffer.length;o++)this.sendBuffer[o].id===e&&this.sendBuffer.splice(o,1);t.call(this,new Error("operation has timed out"))},r);this.acks[e]=(...o)=>{this.io.clearTimeoutFn(n),t.apply(this,[null,...o])}}emitWithAck(e,...t){let i=this.flags.timeout!==void 0||this._opts.ackTimeout!==void 0;return new Promise((r,n)=>{t.push((o,c)=>i?o?n(o):r(c):r(o)),this.emit(e,...t)})}_addToQueue(e){let t;typeof e[e.length-1]=="function"&&(t=e.pop());let i={id:this._queueSeq++,tryCount:0,pending:!1,args:e,flags:Object.assign({fromQueue:!0},this.flags)};e.push((r,...n)=>i!==this._queue[0]?void 0:(r!==null?i.tryCount>this._opts.retries&&(this._queue.shift(),t&&t(r)):(this._queue.shift(),t&&t(null,...n)),i.pending=!1,this._drainQueue())),this._queue.push(i),this._drainQueue()}_drainQueue(e=!1){if(!this.connected||this._queue.length===0)return;let t=this._queue[0];t.pending&&!e||(t.pending=!0,t.tryCount++,this.flags=t.flags,this.emit.apply(this,t.args))}packet(e){e.nsp=this.nsp,this.io._packet(e)}onopen(){typeof this.auth=="function"?this.auth(e=>{this._sendConnectPacket(e)}):this._sendConnectPacket(this.auth)}_sendConnectPacket(e){this.packet({type:p.CONNECT,data:this._pid?Object.assign({pid:this._pid,offset:this._lastOffset},e):e})}onerror(e){this.connected||this.emitReserved("connect_error",e)}onclose(e,t){this.connected=!1,delete this.id,this.emitReserved("disconnect",e,t)}onpacket(e){if(e.nsp===this.nsp)switch(e.type){case p.CONNECT:e.data&&e.data.sid?this.onconnect(e.data.sid,e.data.pid):this.emitReserved("connect_error",new Error("It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)"));break;case p.EVENT:case p.BINARY_EVENT:this.onevent(e);break;case p.ACK:case p.BINARY_ACK:this.onack(e);break;case p.DISCONNECT:this.ondisconnect();break;case p.CONNECT_ERROR:this.destroy();let i=new Error(e.data.message);i.data=e.data.data,this.emitReserved("connect_error",i);break}}onevent(e){let t=e.data||[];e.id!=null&&t.push(this.ack(e.id)),this.connected?this.emitEvent(t):this.receiveBuffer.push(Object.freeze(t))}emitEvent(e){if(this._anyListeners&&this._anyListeners.length){let t=this._anyListeners.slice();for(let i of t)i.apply(this,e)}super.emit.apply(this,e),this._pid&&e.length&&typeof e[e.length-1]=="string"&&(this._lastOffset=e[e.length-1])}ack(e){let t=this,i=!1;return function(...r){i||(i=!0,t.packet({type:p.ACK,id:e,data:r}))}}onack(e){let t=this.acks[e.id];typeof t=="function"&&(t.apply(this,e.data),delete this.acks[e.id])}onconnect(e,t){this.id=e,this.recovered=t&&this._pid===t,this._pid=t,this.connected=!0,this.emitBuffered(),this.emitReserved("connect"),this._drainQueue(!0)}emitBuffered(){this.receiveBuffer.forEach(e=>this.emitEvent(e)),this.receiveBuffer=[],this.sendBuffer.forEach(e=>{this.notifyOutgoingListeners(e),this.packet(e)}),this.sendBuffer=[]}ondisconnect(){this.destroy(),this.onclose("io server disconnect")}destroy(){this.subs&&(this.subs.forEach(e=>e()),this.subs=void 0),this.io._destroy(this)}disconnect(){return this.connected&&this.packet({type:p.DISCONNECT}),this.destroy(),this.connected&&this.onclose("io client disconnect"),this}close(){return this.disconnect()}compress(e){return this.flags.compress=e,this}get volatile(){return this.flags.volatile=!0,this}timeout(e){return this.flags.timeout=e,this}onAny(e){return this._anyListeners=this._anyListeners||[],this._anyListeners.push(e),this}prependAny(e){return this._anyListeners=this._anyListeners||[],this._anyListeners.unshift(e),this}offAny(e){if(!this._anyListeners)return this;if(e){let t=this._anyListeners;for(let i=0;i<t.length;i++)if(e===t[i])return t.splice(i,1),this}else this._anyListeners=[];return this}listenersAny(){return this._anyListeners||[]}onAnyOutgoing(e){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.push(e),this}prependAnyOutgoing(e){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.unshift(e),this}offAnyOutgoing(e){if(!this._anyOutgoingListeners)return this;if(e){let t=this._anyOutgoingListeners;for(let i=0;i<t.length;i++)if(e===t[i])return t.splice(i,1),this}else this._anyOutgoingListeners=[];return this}listenersAnyOutgoing(){return this._anyOutgoingListeners||[]}notifyOutgoingListeners(e){if(this._anyOutgoingListeners&&this._anyOutgoingListeners.length){let t=this._anyOutgoingListeners.slice();for(let i of t)i.apply(this,e.data)}}};function P(s){s=s||{},this.ms=s.min||100,this.max=s.max||1e4,this.factor=s.factor||2,this.jitter=s.jitter>0&&s.jitter<=1?s.jitter:0,this.attempts=0}P.prototype.duration=function(){var s=this.ms*Math.pow(this.factor,this.attempts++);if(this.jitter){var e=Math.random(),t=Math.floor(e*this.jitter*s);s=Math.floor(e*10)&1?s+t:s-t}return Math.min(s,this.max)|0};P.prototype.reset=function(){this.attempts=0};P.prototype.setMin=function(s){this.ms=s};P.prototype.setMax=function(s){this.max=s};P.prototype.setJitter=function(s){this.jitter=s};var K=class extends y{constructor(e,t){var i;super(),this.nsps={},this.subs=[],e&&typeof e=="object"&&(t=e,e=void 0),t=t||{},t.path=t.path||"/socket.io",this.opts=t,T(this,t),this.reconnection(t.reconnection!==!1),this.reconnectionAttempts(t.reconnectionAttempts||1/0),this.reconnectionDelay(t.reconnectionDelay||1e3),this.reconnectionDelayMax(t.reconnectionDelayMax||5e3),this.randomizationFactor((i=t.randomizationFactor)!==null&&i!==void 0?i:.5),this.backoff=new P({min:this.reconnectionDelay(),max:this.reconnectionDelayMax(),jitter:this.randomizationFactor()}),this.timeout(t.timeout==null?2e4:t.timeout),this._readyState="closed",this.uri=e;let r=t.parser||Ie;this.encoder=new r.Encoder,this.decoder=new r.Decoder,this._autoConnect=t.autoConnect!==!1,this._autoConnect&&this.open()}reconnection(e){return arguments.length?(this._reconnection=!!e,this):this._reconnection}reconnectionAttempts(e){return e===void 0?this._reconnectionAttempts:(this._reconnectionAttempts=e,this)}reconnectionDelay(e){var t;return e===void 0?this._reconnectionDelay:(this._reconnectionDelay=e,(t=this.backoff)===null||t===void 0||t.setMin(e),this)}randomizationFactor(e){var t;return e===void 0?this._randomizationFactor:(this._randomizationFactor=e,(t=this.backoff)===null||t===void 0||t.setJitter(e),this)}reconnectionDelayMax(e){var t;return e===void 0?this._reconnectionDelayMax:(this._reconnectionDelayMax=e,(t=this.backoff)===null||t===void 0||t.setMax(e),this)}timeout(e){return arguments.length?(this._timeout=e,this):this._timeout}maybeReconnectOnOpen(){!this._reconnecting&&this._reconnection&&this.backoff.attempts===0&&this.reconnect()}open(e){if(~this._readyState.indexOf("open"))return this;this.engine=new B(this.uri,this.opts);let t=this.engine,i=this;this._readyState="opening",this.skipReconnect=!1;let r=S(t,"open",function(){i.onopen(),e&&e()}),n=c=>{this.cleanup(),this._readyState="closed",this.emitReserved("error",c),e?e(c):this.maybeReconnectOnOpen()},o=S(t,"error",n);if(this._timeout!==!1){let c=this._timeout,h=this.setTimeoutFn(()=>{r(),n(new 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Connection count: ".concat(this.connectedNum,", Is a Recovery?: ").concat(this._socket.recovered,". \nNamespace: ").concat(this.ioNamespace))(),this._dispatchCustomEvent("uibuilder:socket:connected",{numConnections:this.connectedNum,isRecovery:this._socket.recovered}),this._checkConnect()}_onDisconnect(e){a("info","Uib:ioSetup:socket-disconnect","\u26D4 Socket Disconnected. Reason: ".concat(e))(),this._dispatchCustomEvent("uibuilder:socket:disconnected",e),this._checkConnect()}_ioSetup(){return q===void 0?(a("error","Uib:ioSetup","Socket.IO client not loaded, Node-RED comms will not work")(),!1):(this._socket&&(a("trace","Uib:ioSetup","Removing listeners in preparation for redoing Socket.IO connections")(),u(this,k)&&(window.clearTimeout(u(this,k)),A(this,k,null)),this._socket.close(),this._socket.offAny(),this._socket=void 0,this.set("ioConnected",!1)),this.socketOptions.path=this.ioPath,a("trace","Uib:ioSetup","About to create IO object. 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Socket.IO client library loaded.")():a("error","Uib:start","Start completed. ERROR: Socket.IO client library NOT LOADED.")(),this._watchHashChanges(),window.Vue){this.set("isVue",!0);try{this.set("vueVersion",window.Vue.version)}catch{}a("trace","Uib:start","VueJS is loaded. Version: ".concat(this.vueVersion))()}else a("trace","Uib:start","VueJS is not loaded.")();window.DOMPurify?(this.set("purify",!0),a("trace","Uib:start","DOMPurify is loaded.")()):a("trace","Uib:start","DOMPurify is not loaded.")(),window.markdownit?(this.set("markdown",!0),a("trace","Uib:start","Markdown-IT is loaded.")()):a("trace","Uib:start","Markdown-IT is not loaded.")(),this.onChange("msg",i=>{if(u(this,z)===!0){let r=document.getElementById("uib_last_msg");r&&(r.innerHTML=this.syntaxHighlight(i))}}),this._dispatchCustomEvent("uibuilder:startComplete")}},H=new WeakMap,O=new WeakMap,$=new WeakMap,k=new WeakMap,oe=new WeakMap,z=new WeakMap,G=new WeakMap,F=new WeakMap,ve=new WeakMap,ae=new WeakMap,ce=new WeakMap,D=new WeakMap,l(E,"_meta",{version:wt,type:"module",displayName:"uibuilder"}),E),ke=new ei;window.uibuilder?a("error","uibuilder.module.js","`uibuilder` already assigned to window. Have you tried to load it more than once?"):window.uibuilder=ke;window.uib?a("warn","uibuilder.module.js","`uib` shortcut already assigned to window."):window.uib=ke;window.$?a("warn","uibuilder.module.js","Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` or `uib.$` instead."):window.$=window.uibuilder.$;window.$$?a("warn","uibuilder.module.js","Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` or `uib.$$` instead."):window.$$=window.uibuilder.$$;window.$ui?a("warn","uibuilder.module.js","Cannot allocate the global `$ui`, it is already in use. Use `uibuilder.$ui` or `uib.$ui` instead."):window.$ui=window.uibuilder.$ui;var Js=ke;ke.start();customElements.define("uib-var",ne);export{ei as Uib,Js as default,ke as uibuilder};
 //# sourceMappingURL=uibuilder.esm.min.js.map
diff --git a/front-end/uibuilder.esm.min.js.map b/front-end/uibuilder.esm.min.js.map
index 94c4db7c..42789b13 100644
--- a/front-end/uibuilder.esm.min.js.map
+++ b/front-end/uibuilder.esm.min.js.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
   "sources": ["src/front-end-module/ui.js", "src/front-end-module/uibuilder.module.js", "node_modules/engine.io-parser/build/esm/commons.js", "node_modules/engine.io-parser/build/esm/encodePacket.browser.js", "node_modules/engine.io-parser/build/esm/contrib/base64-arraybuffer.js", "node_modules/engine.io-parser/build/esm/decodePacket.browser.js", "node_modules/engine.io-parser/build/esm/index.js", "node_modules/@socket.io/component-emitter/index.mjs", "node_modules/engine.io-client/build/esm/globalThis.browser.js", "node_modules/engine.io-client/build/esm/util.js", "node_modules/engine.io-client/build/esm/contrib/parseqs.js", "node_modules/engine.io-client/build/esm/transport.js", "node_modules/engine.io-client/build/esm/contrib/yeast.js", "node_modules/engine.io-client/build/esm/contrib/has-cors.js", "node_modules/engine.io-client/build/esm/transports/xmlhttprequest.browser.js", "node_modules/engine.io-client/build/esm/transports/polling.js", "node_modules/engine.io-client/build/esm/transports/websocket-constructor.browser.js", "node_modules/engine.io-client/build/esm/transports/websocket.js", "node_modules/engine.io-client/build/esm/transports/webtransport.js", "node_modules/engine.io-client/build/esm/transports/index.js", "node_modules/engine.io-client/build/esm/contrib/parseuri.js", "node_modules/engine.io-client/build/esm/socket.js", "node_modules/engine.io-client/build/esm/index.js", "node_modules/socket.io-client/build/esm/url.js", "node_modules/socket.io-parser/build/esm/index.js", "node_modules/socket.io-parser/build/esm/is-binary.js", "node_modules/socket.io-parser/build/esm/binary.js", "node_modules/socket.io-client/build/esm/on.js", "node_modules/socket.io-client/build/esm/socket.js", "node_modules/socket.io-client/build/esm/contrib/backo2.js", "node_modules/socket.io-client/build/esm/manager.js", "node_modules/socket.io-client/build/esm/index.js", "src/components/uib-var.js"],
-  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\n// Namespaces - See https://stackoverflow.com/a/52572048/1309986\n// const NAMESPACES = {\n//     svg: 'http://www.w3.org/2000/svg',\n//     html: 'http://www.w3.org/1999/xhtml',\n//     xml: 'http://www.w3.org/XML/1998/namespace',\n//     xlink: 'http://www.w3.org/1999/xlink',\n//     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n// }\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    //#region ---- Internal Methods ----\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                if (attrib === 'class' && Array.isArray(comp.attributes[attrib])) comp.attributes[attrib].join(' ')\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n    } // --- end of _uiManager ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    //#endregion ---- -------- ----\n    //#region ---- External Methods ----\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {HTMLElement|null} Selected HTML element or null\n     */\n    $(cssSelector) {\n        /** @type {*} Some kind of HTML element */\n        let el = document.querySelector(cssSelector)\n\n        if (!el) {\n            Ui.log(1, 'Uib:$', `No element found for CSS selector ${cssSelector}`)()\n            return null\n        }\n\n        if ( el.nodeName === 'TEMPLATE' ) {\n            el = el.content.firstElementChild\n            if (!el) {\n                Ui.log(0, 'Uib:$', `Template selected for CSS selector ${cssSelector} but it is empty`)()\n                return null\n            }\n        }\n\n        return el\n    }\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {string} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {HTMLElement[]} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$(cssSelector) {\n        return Array.from(document.querySelectorAll(cssSelector))\n    }\n\n    /** Add 1 or several class names to an element\n     * @param {string|string[]} classNames Single or array of classnames\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    addClass(classNames, el) {\n        if (!Array.isArray(classNames)) classNames = [classNames]\n        if (el) el.classList.add(...classNames)\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n                if (attrib.name === 'class') thisOut.classes = Array.from(node.classList)\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    /** Remove All, 1 or more class names from an element\n     * @param {undefined|null|\"\"|string|string[]} classNames Single or array of classnames. If undefined, \"\" or null, remove all classes\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    removeClass(classNames, el) {\n        if (!classNames) {\n            el.removeAttribute('class')\n            return\n        }\n        if (!Array.isArray(classNames)) classNames = [classNames]\n        if (el) el.classList.remove(...classNames)\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += `<div>${msg.payload}</div>`\n        if (ui.content) content += `<div>${ui.content}</div>`\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        console.log(this)\n        this._uiManager(msg)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName) {\n                if (propName === 'classes') propName = 'class'\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    const p = {}\n                    // Nightmare of different object types in a DOM Element!\n                    const cType = prop.constructor.name.toLowerCase()\n                    if (cType === 'namednodemap') {\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                    } else if (!cType.includes('map')) { // Ordinary properties (not a mapped type)\n                        p[propName] = prop\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                    }\n                    if (p.class) p.classes = Array.from(node.classList)\n                    out.push(p)\n                }\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    /** External alias for _uiComposeComponent\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    //#endregion ---- -------- ----\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n", "/* This is the Front-End JavaScript for uibuilder  in HTML Module form\n  It provides a number of global objects that can be used in your own javascript.\n  see the docs folder `./docs/uibuilder.module.md` for details of how to use this fully.\n\n  Please use the default index.js file for your own code and leave this as-is.\n  See Uib._meta for client version string\n\n  Copyright (c) 2022-2024 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n//#region --- Type Defs --- //\n/**\n * A string containing HTML markup\n * @typedef {string} html\n */\n//#endregion --- Type Defs --- //\n\n// We need the Socket.IO & ui libraries & the uib-var component  --- //\n// @ts-ignore - Note: Only works when using esbuild to bundle\nimport Ui from './ui'\nimport io from 'socket.io-client'\nimport UibVar from '../components/uib-var'\n\nconst version = '6.8.0-src'\n\n// TODO Add option to allow log events to be sent back to Node-RED as uib ctrl msgs\n//#region --- Module-level utility functions --- //\n\n// @ts-ignore Detect whether the loaded library is minified or not\nconst isMinified = !(/param/).test(function (param) { }) // eslint-disable-line no-unused-vars\n\n//#region --- print/console - debugging output functions --- //\n\n/** Default log level - Error & Warn */\nlet logLevel = isMinified ? 0 : 1  // When using minified lib, assume production and only log errors otherwise also log warn\n// function changeLogLevel(level) {\n//     logLevel = level\n//     console.trace = logLevel < 4 ? function(){} : console.trace\n//     console.debug = logLevel < 2 ? function(){} : console.debug\n//     if ( logLevel < 1 ) {\n//         console.log = console.group = console.groupEnd =  function(){}\n//     }\n// }\n\n// Experimental\nconst LOG_STYLES = {\n    // 0\n    error: {\n        css: 'background: red; color: black;',\n        txtCss: 'color: red; ',\n        pre: '\u26D4 ',\n        console: 'error',  // or trace\n    },\n    // 1\n    warn: {\n        css: 'background: darkorange; color: black;',\n        txtCss: 'color: darkorange; ',\n        pre: '\u26A0 ',\n        console: 'warn',\n    },\n    // 2\n    info: {\n        css: 'background: aqua; color: black;',\n        txtCss: 'color: aqua;',\n        pre: '\u2757 ',\n        console: 'info',\n    },\n    // 3\n    log: {\n        css: 'background: grey; color: yellow;',\n        txtCss: 'color: grey;',\n        pre: '',\n        console: 'log',\n    },\n    // 4\n    debug: {\n        css: 'background: chartreuse; color: black;',\n        txtCss: 'color: chartreuse;',\n        pre: '',\n        console: 'debug',\n    },\n    // 5\n    trace: {\n        css: 'background: indigo; color: yellow;',\n        txtCss: 'color: hotpink;',\n        pre: '',\n        console: 'log',\n    },\n\n    names: ['error', 'warn', 'info', 'log', 'debug', 'trace'],\n    reset: 'color: inherit;',\n    head: 'font-weight:bold; font-style:italic;',\n    level: 'font-weight:bold; border-radius: 3px; padding: 2px 5px; display:inline-block;',\n}\n/** Custom logging. e.g. log(2, 'here:there', 'jiminy', {fred:'jim'})()\n * @returns {Function} Log function @example log(2, 'here:there', 'jiminy', {fred:'jim'})()\n */\nfunction log() {\n    // Get the args\n    const args = Array.prototype.slice.call(arguments)\n\n    // 1st arg is the log level/type\n    let level = args.shift()\n    let strLevel\n    switch (level) {\n        case 'trace':\n        case 5: {\n            if (logLevel < 5) break\n            level = 5 // make sure level is numeric\n            strLevel = 'trace'\n            break\n        }\n\n        case 'debug':\n        case 4: {\n            if (logLevel < 4) break\n            level = 4\n            strLevel = 'debug'\n            break\n        }\n\n        case 'log':\n        case 3: {\n            if (logLevel < 3) break\n            level = 3\n            strLevel = 'log'\n            break\n        }\n\n        case 'info':\n        case '':\n        case 2: {\n            if (logLevel < 2) break\n            level = 2\n            strLevel = 'info'\n            break\n        }\n\n        case 'warn':\n        case 1: {\n            if (logLevel < 1) break\n            level = 1\n            strLevel = 'warn'\n            break\n        }\n\n        case 'error':\n        case 'err':\n        case 0: {\n            if (logLevel < 0) break\n            level = 0\n            strLevel = 'error'\n            break\n        }\n\n        default: {\n            level = -1\n            break\n        }\n\n    }\n\n    // If set to something unknown, no log output\n    if (strLevel === undefined) return function () { }\n\n    // 2nd arg is a heading that will be colour highlighted\n    const head = args.shift()\n\n    // Bind back to console.log (could use console[strLevel] but some levels ignore some formatting, use console.xxx directly or dedicated fn)\n    return Function.prototype.bind.call(\n        console[LOG_STYLES[strLevel].console],\n        console,\n        `%c${LOG_STYLES[strLevel].pre}${strLevel}%c [${head}]`, `${LOG_STYLES.level} ${LOG_STYLES[strLevel].css}`, `${LOG_STYLES.head} ${LOG_STYLES[strLevel].txtCss}`,\n        ...args\n    )\n}\n//#endregion\n\n/** A hack to dynamically load a remote module and wait until it is loaded\n * @param {string} url The URL of the module to load\n * @returns {object|null} Either the result object or null (if the load fails)\n */\n// function loadModule(url) { // eslint-disable-line no-unused-vars\n//     let done\n\n//     import(url)\n//         .then(res => {\n//             log('debug', '>> then >>', res)()\n//             done = res\n//         })\n//         .catch(err => {\n//             console.error(`[uibuilder:loadModule] Could not load module ${url}`, err)\n//             done = null\n//         })\n\n//     //  eslint-disable-next-line no-empty\n//     while (!done) { } // eslint-disable-line no-unmodified-loop-condition\n\n//     return done\n// }\n\n/** Makes a null or non-object into an object\n * If not null, moves \"thing\" to {payload:thing}\n *\n * @param {*} thing Thing to check\n * @param {string} [property='payload'] property that \"thing\" is moved to if not null and not an object\n * @returns {!object} _\n */\nfunction makeMeAnObject(thing, property) {\n    if (!property) property = 'payload'\n    if (typeof property !== 'string') {\n        log('warn', 'uibuilderfe:makeMeAnObject', `WARNING: property parameter must be a string and not: ${typeof property}`)()\n        property = 'payload'\n    }\n    let out = {}\n    if ( thing !== null && thing.constructor.name === 'Object' ) {\n        out = thing\n    } else if (thing !== null) {\n        out[property] = thing\n    }\n    return out\n} // --- End of make me an object --- //\n\n/** Joins all arguments as a URL string\n * see http://stackoverflow.com/a/28592528/3016654\n * since v1.0.10, fixed potential double // issue\n * arguments {string} URL fragments\n * @returns {string} _\n */\nfunction urlJoin() {\n    const paths = Array.prototype.slice.call(arguments)\n    const url = '/' + paths.map(function (e) {\n        return e.replace(/^\\/|\\/$/g, '')\n    })\n        .filter(function (e) {\n            return e\n        })\n        .join('/')\n    return url.replace('//', '/')\n} // ---- End of urlJoin ---- //\n\n/** Convert JSON to Syntax Highlighted HTML\n * @param {object} json A JSON/JavaScript Object\n * @returns {html} Object reformatted as highlighted HTML\n */\nfunction syntaxHighlight(json) {\n    if (json === undefined) {\n        json = '<span class=\"undefined\">undefined</span>'\n    } else {\n        try {\n            json = JSON.stringify(json, undefined, 4)\n            // json = json.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;') // eslint-disable-line newline-per-chained-call\n            json = json.replace(/(\"(\\\\u[a-zA-Z0-9]{4}|\\\\[^u]|[^\\\\\"])*\"(\\s*:)?|\\b(true|false|null)\\b|-?\\d+(?:\\.\\d*)?(?:[eE][+-]?\\d+)?)/g, function (match) { // eslint-disable-line prefer-named-capture-group\n                let cls = 'number'\n                if ((/^\"/).test(match)) {\n                    if ((/:$/).test(match)) {\n                        cls = 'key'\n                    } else {\n                        cls = 'string'\n                    }\n                } else if ((/true|false/).test(match)) {\n                    cls = 'boolean'\n                } else if ((/null/).test(match)) {\n                    cls = 'null'\n                }\n                return `<span class=\"${cls}\">${match}</span>`\n            })\n        } catch (e) {\n            json = `Syntax Highlight ERROR: ${e.message}`\n        }\n    }\n    return json\n}\n\n/** msg._ui handling functions */\nconst _ui = new Ui(window, log, syntaxHighlight)\n\n//#endregion --- Module-level utility functions --- //\n\n/** Define and export the Uib class - note that an instance of the class is also exported in the wrap-up\n * @typicalname uibuilder\n */\nexport const Uib = class Uib {\n\n    //#region --- Static variables ---\n    static _meta = {\n        version: version,\n        type: 'module',\n        displayName: 'uibuilder',\n    }\n    //#endregion ---- ---- ---- ----\n\n    //#region private class vars\n\n    // How many times has the loaded instance connected to Socket.IO (detect if not a new load?)\n    connectedNum = 0\n    // event listener callbacks by property name\n    // #events = {}\n    // Socket.IO channel names\n    _ioChannels = { control: 'uiBuilderControl', client: 'uiBuilderClient', server: 'uiBuilder' }\n    /** setInterval holder for pings @type {function|undefined} */\n    #pingInterval\n    // onChange event callbacks\n    #propChangeCallbacks = {}\n    // onTopic event callbacks\n    #msgRecvdByTopicCallbacks = {}\n    // Is Vue available?\n    isVue = false\n    // What version? Set in startup if Vue is loaded. Won't always work\n    vueVersion = undefined\n    /** setInterval id holder for Socket.IO checkConnect\n     * @type {number|null}\n     */\n    #timerid = null\n    // Holds the reference ID for the internal msg change event handler so that it can be cancelled\n    #MsgHandler\n    // Placeholder for io.socket - can't make a # var until # fns allowed in all browsers\n    _socket\n    // Placeholder for an observer that watches the whole DOM for changes - can't make a # var until # fns allowed in all browsers\n    _htmlObserver\n    // Has showMsg been turned on?\n    #isShowMsg = false\n    // Has showStatus been turned on?\n    #isShowStatus = false\n    // If true, URL hash changes send msg back to node-red. Controlled by watchUrlHash()\n    #sendUrlHash = false\n    // Externally accessible command functions (NB: Case must match) - remember to update _uibCommand for new commands\n    #extCommands = [\n        'elementExists', 'get', 'getManagedVarList', 'getWatchedVars', 'htmlSend', 'include',\n        'navigate', 'scrollTo', 'set', 'showMsg', 'showStatus', 'uiGet', 'uiWatch', 'watchUrlHash',\n    ]\n\n    /** @type {{[key: string]: string}} Managed uibuilder variables */\n    #managedVars = {}\n\n    // What status variables to show via showStatus()\n    #showStatus = {\n        online: { 'var': 'online', 'label': 'Online?', 'description': 'Is the browser online?', },\n        ioConnected: { 'var': 'ioConnected', 'label': 'Socket.IO connected?', 'description': 'Is Socket.IO connected?', },\n        connectedNum: { 'var': 'connectedNum', 'label': '# reconnections', 'description': 'How many times has Socket.IO had to reconnect since last page load?', },\n\n        clientId: { 'var': 'clientId', 'label': 'Client ID', 'description': 'Static client unique id set in Node-RED. Only changes when browser is restarted.', },\n        tabId: { 'var': 'tabId', 'label': 'Browser tab ID', 'description': 'Static unique id for the browser\\'s current tab', },\n        cookies: { 'var': 'cookies', 'label': 'Cookies', 'description': 'Cookies set in Node-RED', },\n        httpNodeRoot: { 'var': 'httpNodeRoot', 'label': 'httpNodeRoot', 'description': 'From Node-RED\\' settings.js, affects URL\\'s. May be wrong for pages in sub-folders', },\n        pageName: { 'var': 'pageName', 'label': 'Page name', 'description': 'Actual name of this page', },\n\n        ioNamespace: { 'var': 'ioNamespace', 'label': 'SIO namespace', 'description': 'Socket.IO namespace - unique to each uibuilder node instance', },\n        // ioPath: { 'var': 'ioPath', 'label': 'SIO path', 'description': '', }, // no longer needed in the modern client\n        socketError: { 'var': 'socketError', 'label': 'Socket error', 'description': 'If the Socket.IO connection has failed, says why', },\n\n        msgsSent: { 'var': 'msgsSent', 'label': '# msgs sent', 'description': 'How many standard messages have been sent to Node-RED?', },\n        msgsReceived: { 'var': 'msgsReceived', 'label': '# msgs received', 'description': 'How many standard messages have been received from Node-RED?', },\n        msgsSentCtrl: { 'var': 'msgsSentCtrl', 'label': '# control msgs sent', 'description': 'How many control messages have been sent to Node-RED?', },\n        msgsCtrlReceived: { 'var': 'msgsCtrlReceived', 'label': '# control msgs received', 'description': 'How many control messages have been received from Node-RED?', },\n        originator: { 'var': 'originator', 'label': 'Node Originator', 'description': 'If the last msg from Node-RED was from a `uib-sender` node, this will be its node id so that messasges can be returned to it', },\n        topic: { 'var': 'topic', 'label': 'Default topic', 'description': 'Optional default topic to be included in outgoing standard messages', },\n\n        started: { 'var': 'started', 'label': 'Has uibuilder client started?', 'description': 'Whether `uibuilder.start()` ran successfully. This should self-run and should not need to be run manually', },\n        version: { 'var': 'version', 'label': 'uibuilder client version', 'description': 'The version of the loaded uibuilder client library', },\n        serverTimeOffset: { 'var': 'serverTimeOffset', 'label': 'Server time offset (Hrs)', 'description': 'The number of hours difference between the Node-red server and the client', },\n    }\n\n    // Track ui observers (see uiWatch)\n    #uiObservers = {}\n\n    //#endregion\n\n    //#region public class vars\n\n    // TODO Move to proper getters\n    //#region ---- Externally read-only (via .get method) ---- //\n    // version - moved to _meta\n    /** Client ID set by uibuilder on connect */\n    clientId = ''\n    /** The collection of cookies provided by uibuilder */\n    cookies = {}\n    /** Copy of last control msg object received from sever */\n    ctrlMsg = {}\n    /** Is Socket.IO client connected to the server? */\n    ioConnected = false\n    // Is the browser tab containing this page visible or not?\n    isVisible = false\n    // Remember the last page (re)load/navigation type: navigate, reload, back_forward, prerender\n    lastNavType = ''\n    /** Last std msg received from Node-RED */\n    msg = {}\n    /** number of messages sent to server since page load */\n    msgsSent = 0\n    /** number of messages received from server since page load */\n    msgsReceived = 0\n    /** number of control messages sent to server since page load */\n    msgsSentCtrl = 0\n    /** number of control messages received from server since page load */\n    msgsCtrlReceived = 0\n    /** Is the client online or offline? */\n    online = navigator.onLine\n    /** last control msg object sent via uibuilder.send() @since v2.0.0-dev3 */\n    sentCtrlMsg = {}\n    /** last std msg object sent via uibuilder.send() */\n    sentMsg = {}\n    /** placeholder to track time offset from server, see fn socket.on(ioChannels.server ...) */\n    serverTimeOffset = null\n    /** placeholder for a socket error message */\n    socketError = null\n    // tab identifier from session storage\n    tabId = ''\n    // Actual name of current page (set in constructor)\n    pageName = null\n    // Is the DOMPurify library loaded? Updated in start()\n    purify = false\n    // Is the Markdown-IT library loaded? Updated in start()\n    markdown = false\n    // Current URL hash. Initial set is done from start->watchHashChanges via a set to make it watched\n    urlHash = location.hash\n    //#endregion ---- ---- ---- ---- //\n\n    // TODO Move to proper getters/setters\n    //#region ---- Externally Writable (via .set method, read via .get method) ---- //\n    /** Default originator node id - empty string by default\n     * @type {string}\n     */\n    originator = ''\n    /** Default topic - used by send if set and no topic provided\n     * @type {(string|undefined)}\n     */\n    topic = undefined\n    //#endregion ---- ---- ---- ---- //\n\n    //#region ---- These are unlikely to be needed externally: ----\n    autoSendReady = true\n    httpNodeRoot = '' // Node-RED setting (via cookie)\n    ioNamespace = ''\n    ioPath = ''\n    retryFactor = 1.5       // starting delay factor for subsequent reconnect attempts\n    retryMs = 2000          // starting retry ms period for manual socket reconnections workaround\n    storePrefix = 'uib_'    // Prefix for all uib-related localStorage\n    started = false\n    // NOTE: These can only change when a client (re)connects\n    socketOptions = {\n        path: this.ioPath,\n        transports: ['polling', 'websocket'],\n        // Using callback so that they are updated automatically on (re)connect\n        // Only put things in here that will be valid for a websocket connected session\n        auth: (cb) => {\n            cb({ // eslint-disable-line n/no-callback-literal\n                clientVersion: version,\n                clientId: this.clientId,\n                pathName: window.location.pathname,\n                urlParams: Object.fromEntries(new URLSearchParams(location.search)),\n                pageName: this.pageName,\n                tabId: this.tabId,\n                lastNavType: this.lastNavType,\n                connectedNum: ++this.connectedNum,\n                // Used to calculate the diff between the server and client connection timestamps - reported if >1 minute\n                browserConnectTimestamp: (new Date()).toISOString(),\n            })\n        },\n        transportOptions: {\n            // Can only set headers when polling\n            polling: {\n                extraHeaders: {\n                    'x-clientid': `${Uib._meta.displayName}; ${Uib._meta.type}; ${Uib._meta.version}; ${this.clientId}`,\n                }\n            },\n        },\n    }\n    //#endregion -- not external --\n\n    //#endregion --- End of variables ---\n\n    //#region ------- Getters and Setters ------- //\n\n    // Change logging level dynamically (affects both console. and print.)\n    set logLevel(level) { logLevel = level; console.log('%c\u2757 info%c [logLevel]', `${LOG_STYLES.level} ${LOG_STYLES.info.css}`, `${LOG_STYLES.head} ${LOG_STYLES.info.txtCss}`, `Set to ${level} (${LOG_STYLES.names[level]})`) /* changeLogLevel(level)*/ }\n    get logLevel() { return logLevel }\n\n    get meta() { return Uib._meta }\n\n    /** Function to set uibuilder properties to a new value - works on any property except _* or #*\n     * Also triggers any event listeners.\n     * Example: this.set('msg', {topic:'uibuilder', payload:42});\n     * @param {string} prop Any uibuilder property who's name does not start with a _ or #\n     * @param {*} val The set value of the property or a string declaring that a protected property cannot be changed\n     * @param {boolean} [store] If true, the variable is also saved to the browser localStorage if possible\n     * @param {boolean} [autoload] If true & store is true, on load, uib will try to restore the value from the store automatically\n     * @returns {*} Input value\n     */\n    set(prop, val, store = false, autoload = false) {\n        // Check for excluded properties - we don't want people to set these\n        // if (this.#excludedSet.indexOf(prop) !== -1) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:set', `Cannot use set() on protected property \"${prop}\"`)()\n            return `Cannot use set() on protected property \"${prop}\"`\n        }\n\n        // We must add the var to the uibuilder object\n        this[prop] = val\n\n        // Keep track of all managed variables\n        this.#managedVars[prop] = prop\n\n        // If requested, save to store\n        if (store === true) this.setStore(prop, val, autoload)\n\n        log('trace', 'Uib:set', `prop set - prop: ${prop}, val: `, val, ` store: ${store}, autoload: ${autoload}`)()\n\n        // Trigger this prop's event callbacks (listeners which are set by this.onChange)\n        // this.emit(prop, val)\n\n        // trigger an event on the prop name, pass both the name and value to the event details\n        this._dispatchCustomEvent('uibuilder:propertyChanged', { 'prop': prop, 'value': val, 'store': store, 'autoload': autoload })\n\n        return val\n    }\n\n    /** Function to get the value of a uibuilder property\n     * Example: uibuilder.get('msg')\n     * @param {string} prop The name of the property to get as long as it does not start with a _ or #\n     * @returns {*|undefined} The current value of the property\n     */\n    get(prop) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:get', `Cannot use get() on protected property \"${prop}\"`)()\n            return\n        }\n        if (prop === 'version') return Uib._meta.version\n        if (prop === 'msgsCtrl') return this.msgsCtrlReceived\n        if (prop === 'reconnections') return this.connectedNum\n        if (this[prop] === undefined) {\n            log('warn', 'Uib:get', `get() - property \"${prop}\" is undefined`)()\n        }\n        return this[prop]\n    }\n\n    /** Write to localStorage if possible. console error output if can't write\n     * Also uses this.storePrefix\n     * @example\n     *   uibuilder.setStore('fred', 42)\n     *   console.log(uibuilder.getStore('fred'))\n     * @param {string} id localStorage var name to be used (prefixed with 'uib_')\n     * @param {*} value value to write to localstore\n     * @param {boolean} [autoload] If true, on load, uib will try to restore the value from the store\n     * @returns {boolean} True if succeeded else false\n     */\n    setStore(id, value, autoload = false) {\n        let autoVars = {}\n        if (autoload === true) {\n            try {\n                autoVars = this.getStore('_uibAutoloadVars') || {}\n            } catch (e) {}\n        }\n        if (typeof value === 'object') {\n            try {\n                value = JSON.stringify(value)\n            } catch (e) {\n                log('error', 'Uib:setStore', 'Cannot stringify object, not storing. ', e)()\n                return false\n            }\n        }\n        try {\n            localStorage.setItem(this.storePrefix + id, value)\n            if (autoload) {\n                autoVars[id] = id\n                try {\n                    localStorage.setItem(this.storePrefix + '_uibAutoloadVars', JSON.stringify(autoVars))\n                } catch (e) {\n                    log('error', 'Uib:setStore', 'Cannot save autoload list. ', e)()\n                }\n            }\n            this._dispatchCustomEvent('uibuilder:propertyStored', { 'prop': id, 'value': value, 'autoload': autoload })\n            return true\n        } catch (e) {\n            log('error', 'Uib:setStore', 'Cannot write to localStorage. ', e)()\n            return false\n        }\n    } // --- end of setStore --- //\n\n    /** Attempt to get and re-hydrate a key value from localStorage\n     * Note that all uib storage is automatically prefixed using this.storePrefix\n     * @param {*} id The key of the value to attempt to retrieve\n     * @returns {*|null|undefined} The re-hydrated value of the key or null if key not found, undefined on error\n     */\n    getStore(id) {\n        try {\n            // @ts-ignore\n            return JSON.parse(localStorage.getItem(this.storePrefix + id))\n        } catch (e) { }\n        try {\n            return localStorage.getItem(this.storePrefix + id)\n        } catch (e) {\n            return undefined\n        }\n    }\n\n    /** Remove a given id from the uib keys in localStorage\n     * @param {*} id The key to remove\n     */\n    removeStore(id) {\n        try {\n            localStorage.removeItem(this.storePrefix + id)\n        } catch (e) { }\n    }\n\n    /** Returns a list of uibuilder properties (variables) that can be watched with onChange\n     * @returns {{[key: string]: string}} List of uibuilder managed variables\n     */\n    getManagedVarList() {\n        return this.#managedVars\n    }\n\n    getWatchedVars() {\n        return Object.keys(this.#propChangeCallbacks)\n    }\n\n    //#endregion ------- -------- ------- //\n\n    //#region ------- Our own event handling system ---------- //\n\n    // TODO Add option to send event details back to Node-RED as uib ctrl msg\n    /** Standard fn to create a custom event with details & dispatch it\n     * @param {string} title The event name\n     * @param {*} details Any details to pass to event output\n     */\n    _dispatchCustomEvent(title, details) {\n        const event = new CustomEvent(title, { detail: details })\n        document.dispatchEvent(event)\n    }\n\n    // See the this.#propChangeCallbacks & msgRecvdByTopicCallbacks private vars\n\n    /** Register on-change event listeners for uibuilder tracked properties\n     * Make it possible to register a function that will be run when the property changes.\n     * Note that you can create listeners for non-existant properties\n     * @example: uibuilder.onChange('msg', (msg) => { console.log('uibuilder.msg changed! It is now: ', msg) })\n     *\n     * @param {string} prop The property of uibuilder that we want to monitor\n     * @param {Function} callback The function that will run when the property changes, parameter is the new value of the property after change\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelChange if you need to remove a listener\n     */\n    onChange(prop, callback) {\n        // Note: Property does not have to exist yet\n\n        // console.debug(`[Uib:onchange] pushing new callback (event listener) for property: ${prop}`)\n\n        // Create a new array or add to the array of callback functions for the property in the events object\n        // if (this.#events[prop]) {\n        //     this.#events[prop].push(callback)\n        // } else {\n        //     this.#events[prop] = [callback]\n        // }\n\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#propChangeCallbacks[prop]) this.#propChangeCallbacks[prop] = { _nextRef: 1 }\n        else this.#propChangeCallbacks[prop]._nextRef++\n\n        const nextCbRef = this.#propChangeCallbacks[prop]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const propChangeCallback = this.#propChangeCallbacks[prop][nextCbRef] = function propChangeCallback(e) {\n            // If the prop name matches the 1st arg in the onChange fn:\n            if (prop === e.detail.prop) {\n                const value = e.detail.value\n                // console.warn('[Uib:onChange:evt] uibuilder:propertyChanged. ', e.detail)\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(value, value)\n            }\n        }\n\n        document.addEventListener('uibuilder:propertyChanged', propChangeCallback)\n\n        return nextCbRef\n    } // ---- End of onChange() ---- //\n\n    cancelChange(prop, cbRef) {\n        document.removeEventListener('uibuilder:propertyChanged', this.#propChangeCallbacks[prop][cbRef])\n        delete this.#propChangeCallbacks[prop][cbRef]\n        // this.#propChangeCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Register a change callback for a specific msg.topic\n     * Similar to onChange but more convenient if needing to differentiate by msg.topic.\n     * @example: let otRef = uibuilder.onTopic('mytopic', function(){ console.log('Received a msg with msg.topic=`mytopic`. msg: ', this) })\n     * To cancel a change listener: uibuilder.cancelTopic('mytopic', otRef)\n     *\n     * @param {string} topic The msg.topic we want to listen for\n     * @param {Function} callback The function that will run when an appropriate msg is received. `this` inside the callback as well as the cb's single argument is the received msg.\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelTopic if you need to remove a listener\n     */\n    onTopic(topic, callback) {\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#msgRecvdByTopicCallbacks[topic]) this.#msgRecvdByTopicCallbacks[topic] = { _nextRef: 1 }\n        else this.#msgRecvdByTopicCallbacks[topic]._nextRef++\n\n        const nextCbRef = this.#msgRecvdByTopicCallbacks[topic]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const msgRecvdEvtCallback = this.#msgRecvdByTopicCallbacks[topic][nextCbRef] = function msgRecvdEvtCallback(e) {\n            const msg = e.detail\n            // console.log('[Uib:onTopic:evt] uibuilder:stdMsgReceived where topic matches. ', e.detail)\n            if (msg.topic === topic) {\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(msg, msg)\n            }\n        }\n\n        document.addEventListener('uibuilder:stdMsgReceived', msgRecvdEvtCallback)\n\n        return nextCbRef\n    }\n\n    cancelTopic(topic, cbRef) {\n        document.removeEventListener('uibuilder:stdMsgReceived', this.#msgRecvdByTopicCallbacks[topic][cbRef])\n        delete this.#msgRecvdByTopicCallbacks[topic][cbRef]\n        // this.#msgRecvdCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Trigger event listener for a given property\n     * Called when uibuilder.set is used\n     *\n     * @param {*} prop The property for which to run the callback functions\n     * arguments: Additional arguments contain the value to pass to the event callback (e.g. newValue)\n     */\n    // emit(prop) {\n    //     var evt = this.#events[prop]\n    //     if (!evt) {\n    //         return\n    //     }\n    //     var args = Array.prototype.slice.call(arguments, 1)\n    //     for (var i = 0; i < evt.length; i++) {\n    //         evt[i].apply(this, args)\n    //     }\n    //     log('trace', 'Uib:emit', `${evt.length} listeners run for prop ${prop} `)()\n    // }\n\n    /** Forcibly removes all event listeners from the events array\n     * Use if you need to re-initialise the environment\n     */\n    // clearEventListeners() {\n    //     this.#events = []\n    // } // ---- End of clearEventListeners() ---- //\n\n    /** Clear a single property event listeners\n     * @param {string} prop The property of uibuilder for which we want to clear the event listener\n     */\n    // clearListener(prop) {\n    //     if (this.#events[prop]) delete this.#events[prop]\n    // }\n\n    //#endregion ---------- End of event handling system ---------- //\n\n    //#region ------- General Utility Functions -------- //\n\n    /** Check supplied msg from server for a timestamp - if received, work out & store difference to browser time\n     * @param {object} receivedMsg A message object recieved from Node-RED\n     * @returns {void} Updates self.serverTimeOffset if different to previous value\n     */\n    _checkTimestamp(receivedMsg) {\n        if (Object.prototype.hasOwnProperty.call(receivedMsg, 'serverTimestamp')) {\n            const serverTimestamp = new Date(receivedMsg.serverTimestamp)\n            // @ts-ignore\n            const offset = Math.round(((new Date()) - serverTimestamp) / 3600000) // in ms /3.6m to get hours\n            if (offset !== this.serverTimeOffset) {\n                log('trace', `Uib:checkTimestamp:${this._ioChannels.server} (server)`, `Offset changed to: ${offset} from: ${this.serverTimeOffset}`)()\n                this.set('serverTimeOffset', offset)\n            }\n        }\n    }\n\n    /** Set the default originator. Set to '' to ignore. Used with uib-sender.\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    setOriginator(originator = '') {\n        this.set('originator', originator)\n    } // ---- End of setOriginator ---- //\n\n    /** HTTP Ping/Keep-alive - makes a call back to uibuilder's ExpressJS server and receives a 204 response\n     * Can be used to keep sessions alive.\n     * @example\n     *   uibuilder.setPing(2000) // repeat every 2 sec. Re-issue with ping(0) to turn off repeat.\n     *   uibuilder.onChange('ping', function(data) {\n     *      console.log('pinger', data)\n     *   })\n     * @param {number} ms Repeat interval in ms\n     */\n    setPing(ms = 0) {\n        const oReq = new XMLHttpRequest()\n        oReq.addEventListener('load', () => {\n            const headers = (oReq.getAllResponseHeaders()).split('\\r\\n')\n            const elapsedTime = Number(new Date()) - Number((oReq.responseURL.split('='))[1])\n            this.set('ping', {\n                success: !!((oReq.status === 201) || (oReq.status === 204)), // true if one of the listed codes else false\n                status: oReq.status,\n                headers: headers,\n                url: oReq.responseURL,\n                elapsedTime: elapsedTime,\n            })\n        })\n\n        if (this.#pingInterval) {\n            clearInterval(this.#pingInterval)\n            this.#pingInterval = undefined\n        }\n\n        oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n        oReq.send()\n\n        if (ms > 0) {\n            this.#pingInterval = setInterval(() => {\n                oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n                oReq.send()\n            }, ms)\n        }\n    } // ---- End of ping ---- //\n\n    log() {\n        log(...arguments)()\n    }\n\n    /** Convert JSON to Syntax Highlighted HTML\n     * @param {object} json A JSON/JavaScript Object\n     * @returns {html} Object reformatted as highlighted HTML\n     */\n    syntaxHighlight(json) {\n        return syntaxHighlight(json)\n    } // --- End of syntaxHighlight --- //\n\n    /** Copies a uibuilder variable to the browser clipboard\n     * @param {string} varToCopy The name of the uibuilder variable to copy to the clipboard\n     */\n    copyToClipboard(varToCopy) {\n        let data = ''\n        try {\n            data = JSON.stringify(this.get(varToCopy))\n        } catch (e) {\n            log('error', 'copyToClipboard', `Could not copy \"${varToCopy}\" to clipboard.`, e.message)()\n        }\n        navigator.clipboard.writeText(data)\n    } // --- End of copyToClipboard --- //\n\n    /** DEPRECATED FOR NOW - wasn't working properly.\n     * Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.\n     * Requires IntersectionObserver (available to all mainstream browsers from early 2019)\n     * Automatically sends a msg back to Node-RED.\n     * Requires the element to already exist.\n     * @returns {false} False if not visible\n     */\n    elementIsVisible() {\n        const info = 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'\n        log('error', 'uib:elementIsVisible', info)()\n        this.send({ payload: 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex' })\n        return false\n    } // --- End of elementIsVisible --- //\n\n    /** Does the chosen CSS Selector currently exist?\n     * Automatically sends a msg back to Node-RED unless turned off.\n     * @param {string} cssSelector Required. CSS Selector to examine for visibility\n     * @param {boolean} [msg] Optional, default=true. If true also sends a message back to Node-RED\n     * @returns {boolean} True if the element exists\n     */\n    elementExists(cssSelector, msg = true) {\n        const el = document.querySelector(cssSelector)\n\n        let exists = false\n        if (el !== null) exists = true\n\n        if (msg === true) {\n            this.send({\n                payload: exists,\n                info: `Element \"${cssSelector}\" ${exists ? 'exists' : 'does not exist'}`\n            })\n        }\n\n        return exists\n    } // --- End of elementExists --- //\n\n    /** Only keep the URL Hash & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return '#' + url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Set up an event listener to watch for hash changes\n     * and set the watchable urlHash variable\n     */\n    _watchHashChanges() {\n        this.set('urlHash', location.hash)\n        window.addEventListener('hashchange', (event) => {\n            this.set('urlHash', location.hash)\n            if (this.#sendUrlHash === true) {\n                this.send({ topic: 'hashChange', payload: location.hash, newHash: this.keepHashFromUrl(event.newURL), oldHash: this.keepHashFromUrl(event.oldURL) })\n            }\n        })\n    }\n\n    /** Returns true/false or a default value for truthy/falsy and other values\n     * @param {string|number|boolean|*} val The value to test\n     * @param {any} deflt Default value to use if the value is not truthy/falsy\n     * @returns {boolean|any} The truth! Or the default\n     */\n    truthy(val, deflt) {\n        let ret\n        if (['on', 'On', 'ON', 'true', 'True', 'TRUE', '1', true, 1].includes(val)) ret = true\n        else if (['off', 'Off', 'OFF', 'false', 'False', 'FALSE', '0', false, 0].includes(val)) ret = false\n        else ret = deflt\n        return ret\n    }\n\n    /** Turn on/off/toggle sending URL hash changes back to Node-RED\n     * @param {string|number|boolean|undefined} [toggle] Optional on/off/etc\n     * @returns {boolean} True if we will send a msg to Node-RED on a hash change\n     */\n    watchUrlHash(toggle) {\n        this.#sendUrlHash = this.truthy(toggle, this.#sendUrlHash !== true)\n        return this.#sendUrlHash\n    }\n\n    /** Navigate to a new page or a new route (hash)\n     * @param {string} url URL to navigate to. Can be absolute or relative (to current page) or just a hash for a route change\n     * @returns {Location} The new window.location string\n     */\n    navigate(url) {\n        if (url) window.location.href = url\n        return window.location\n    }\n\n    /** Format a number using the INTL standard library - compatible with uib-var filter function\n     * @param {number} value Number to format\n     * @param {number} decimalPlaces Number of decimal places to include. Default=no default\n     * @param {string} intl standard locale spec, e.g. \"ja-JP\" or \"en-GB\". Default=navigator.language\n     * @param {object} opts INTL library options object. Optional\n     * @returns {string} formatted number\n     * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/toLocaleString\n     */\n    formatNumber(value, decimalPlaces, intl, opts) {\n        if (isNaN(value)) {\n            log('error', 'formatNumber', `Value must be a number. Value type: \"${typeof value}\"`)()\n            return 'NaN'\n        }\n        if (!opts) opts = {}\n        if (!intl) intl = navigator.language ? navigator.language : 'en-GB'\n        if (decimalPlaces) {\n            opts.minimumFractionDigits = decimalPlaces\n            opts.maximumFractionDigits = decimalPlaces\n        }\n        let out\n        try {\n            out = Number(value).toLocaleString(intl, opts)\n        } catch (e) {\n            log('error', 'formatNumber', `${e.message}. value=${value}, dp=${decimalPlaces}, intl=\"${intl}\", opts=${JSON.stringify(opts)}`)()\n            return 'NaN'\n        }\n        return out\n    }\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- UI handlers --------- //\n\n    //#region -- Direct to _ui --\n    // ! NOTE: Direct assignments change the target `this` to here. Use with caution\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {HTMLElement|null} Selected HTML element or null\n     */\n    $ = _ui.$\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {string} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {HTMLElement[]} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$ = _ui.$$\n\n    /** Reference to the full ui library */\n    $ui = _ui\n\n    /** Add 1 or several class names to an element\n     * @param {string|string[]} classNames Single or array of classnames\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    addClass = _ui.addClass\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        return _ui.convertMarkdown\n    }\n\n    /** ASYNC: Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     */\n    async include(url, uiOptions) {\n        await _ui.include(url, uiOptions)\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        _ui.loadScriptSrc(url)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        _ui.loadStyleSrc(url)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        _ui.loadScriptTxt(textFn)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        _ui.loadStyleTxt(textFn)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        _ui.loadui(url)\n    }\n\n    /** Remove All, 1 or more class names from an element\n     * @param {undefined|null|\"\"|string|string[]} classNames Single or array of classnames. If undefined, \"\" or null, remove all classes\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    removeClass = _ui.removeClass\n\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        _ui.replaceSlot(el, component)\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        _ui.replaceSlotMarkdown(el, component)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        return _ui.sanitiseHTML(html)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) {\n        _ui.showDialog(type, ui, msg)\n    }\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        _ui.ui(json)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        return _ui.uiGet(cssSelector, propName)\n    }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} component Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, component) {\n        _ui.uiEnhanceElement(el, component)\n    }\n\n    //#endregion -- direct to _ui --\n\n    /** * Show/hide a display card on the end of the visible HTML that will dynamically display the last incoming msg from Node-RED\n     * The card has the id `uib_last_msg`. Updates are done from a listener set up in the start function.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showMsg(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowMsg\n        this.#isShowMsg = showHide\n        let slot = 'Waiting for a message from Node-RED'\n\n        if (this.msg && Object.keys(this.msg).length > 0) {\n            slot = this.syntaxHighlight(this.msg)\n        }\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_last_msg_wrap',\n                ],\n            })\n        } else {\n            _ui._uiReplace({\n                components: [\n                    {\n                        type: 'div',\n                        id: 'uib_last_msg_wrap',\n                        parent: parent,\n                        attributes: {\n                            title: 'Last message from Node-RED',\n                        },\n                        components: [\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.copyToClipboard(\"msg\")',\n                                    class: 'compact',\n                                    style: 'right:3em;',\n                                },\n                                slot: '\uD83D\uDCCB',\n                            },\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.showMsg()',\n                                    class: 'compact',\n                                    style: 'right:.5em;',\n                                },\n                                slot: '\u26D4',\n                            },\n                            {\n                                type: 'pre',\n                                id: 'uib_last_msg',\n                                // parent: 'uib_last_msg_wrap',\n                                attributes: {\n                                    class: 'syntax-highlight',\n                                },\n                                slot: slot,\n                            },\n                        ],\n                    },\n                ],\n            })\n        }\n\n        return showHide\n    }\n\n    /** Show a browser notification if possible.\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * @example uibuilder.notify( 'My simple message to the user' )\n     * @example uibuilder.notify( {topic: 'My Title', payload: 'My simple message to the user'} )\n     * @example uibuilder.notify( {title: 'My Title', body: 'My simple message to the user'} )\n     * @example // If config.return = true, a promise is returned.\n     * // The resolved promise is only returned if the notification is clicked by the user.\n     * // Can be used to send the response back to Node-RED\n     * uibuilder.notify(notifyConfig).then( res => uibuilder.eventSend(res) )\n     * @ref https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config data or simple message string\n     * @returns {Promise<Event>|null} A promise that resolves to the click event or null\n     */\n    notify(config) {\n        if (config.return) return _ui.notification(config)\n\n        _ui.notification(config)\n            .then( res => { // eslint-disable-line promise/always-return\n                log('info', 'Uib:notification', 'Notification completed event', res)()\n                // if (config.return) return res\n            })\n            .catch( err => {\n                log('error', 'Uib:notification', 'Notification error event', err)()\n            })\n        return null\n    }\n\n    /** Scroll the page\n     * https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollIntoView\n     * @param {string} [cssSelector] Optional. If not set, scrolls to top of page.\n     * @param {{block:(string|undefined),inline:(string|undefined),behavior:(string|undefined)}} [opts] Optional. DOM scrollIntoView options\n     * @returns {boolean} True if element was found, false otherwise\n     */\n    scrollTo(cssSelector, opts) {\n        // @ts-ignore\n        if (!opts) opts = {}\n        if (!cssSelector || cssSelector === 'top'  || cssSelector === 'start') cssSelector = 'body'\n        else if (cssSelector === 'bottom' || cssSelector === 'end') {\n            cssSelector = 'body'\n            opts.block = 'end'\n        }\n        const el = this.$(cssSelector)\n        if (el) {\n            el.scrollIntoView(opts)\n            return true\n        }\n        return false\n    }\n\n    /** Show/hide a display card on the end of the visible HTML that will dynamically display the current status of the uibuilder client\n     * The card has the id `uib_status`.\n     * The display is updated by an event listener created in the class constructor.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showStatus(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowStatus\n        this.#isShowStatus = showHide\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_status',\n                ],\n            })\n            return showHide\n        }\n\n        const root = {\n            components: [\n                {\n                    type: 'div',\n                    id: 'uib_status',\n                    parent: parent,\n                    attributes: {\n                        title: 'Current status of the uibuilder client',\n                        class: 'text-smaller',\n                    },\n                    components: [\n                        {\n                            'type': 'table',\n                            'components': [\n                                {\n                                    'type': 'tbody',\n                                    'components': []\n                                }\n                            ]\n                        }\n                    ]\n                }\n            ]\n        }\n        const details = root.components[0].components[0].components[0].components\n\n        Object.values(this.#showStatus).forEach( entry => {\n            details.push({\n                'type': 'tr',\n                'attributes': {\n                    title: entry.description,\n                },\n                'components': [\n                    {\n                        'type': 'th',\n                        'slot': entry.label,\n                    },\n                    {\n                        'type': 'td',\n                        'attributes': {\n                            'data-varType': entry.var,\n                        },\n                        'slot': entry.var === 'version' ? Uib._meta.version : JSON.stringify(this[entry.var]),\n                    }\n                ],\n            })\n        })\n\n        _ui._uiReplace(root)\n\n        return showHide\n    }\n\n    /** Use the Mutation Observer browser API to watch for changes to a single element on the page.\n     * OMG! It is sooo hard to turn the data into something that successfully serialises so it can be sent back to Node-RED!\n     * NB: Each cssSelector creates a unique watcher. Sending the same selector overwrites the previous one.\n     * @param {string} cssSelector A CSS Selector that selects the element to watch for changes\n     * @param {boolean|\"toggle\"} [startStop] true=start watching the DOM, false=stop. Default='toggle'\n     * @param {boolean} [send] true=Send changes to Node-RED, false=Don't send. Default=true\n     * @param {boolean} [showLog] true=Output changes to log, false=stop. Default=true. Log level is 2 (Info)\n     * @returns {boolean} True if the watch is on, false otherwise\n     */\n    uiWatch(cssSelector, startStop = 'toggle', send = true, showLog = true) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.querySelector(cssSelector)\n        if (!targetNode) {\n            log('warn', 'uibuilder.module.js:uiWatch', `CSS Selector '${cssSelector}' not found.`)()\n            return false\n        }\n\n        if (startStop === 'toggle' || startStop === undefined || startStop === null) {\n            if (this.#uiObservers[cssSelector]) startStop = false\n            else startStop = true\n        }\n\n        // Need a ref to the Uib this\n        const that = this\n\n        if (startStop === true) {\n            // Create an observer instance\n            this.#uiObservers[cssSelector] = new MutationObserver( function( mutationList /* , observer */ ) {\n                const out = []\n\n                mutationList.forEach( mu => {\n                    // console.log({ mu })\n                    const oMu = {\n                        type: mu.type,\n                        oldValue: mu.oldValue !== null ? mu.oldValue : undefined,\n                    }\n\n                    if (mu.addedNodes.length > 0) {\n                        oMu.addedNodes = []\n                        mu.addedNodes.forEach( (an, i) => {\n                            oMu.addedNodes.push(_ui.nodeGet(mu.addedNodes[i]))\n                        })\n                    }\n\n                    if (mu.removedNodes.length > 0) {\n                        oMu.removedNodes = []\n                        mu.removedNodes.forEach( (an, i) => {\n                            oMu.removedNodes.push(_ui.nodeGet(mu.removedNodes[i]))\n                        })\n                    }\n\n                    if ( mu.type === 'attributes' ) {\n                        oMu.attributeName = mu.attributeName\n                        // @ts-ignore\n                        oMu.newValue = mu.target.attributes[mu.attributeName].value\n                    }\n\n                    out.push(oMu)\n                })\n\n                // Custom event\n                that._dispatchCustomEvent('uibuilder:domChange', out)\n                // Send a msg back to node-red\n                if (send === true) {\n                    that.send({\n                        _ui: {\n                            cssSelector: cssSelector,\n                            uiChanges: out\n                        },\n                        topic: that.topic || `DOM Changes for '${cssSelector}'`,\n                    })\n                }\n                // Log to info\n                if (showLog === true) {\n                    log('info', 'uibuilder.module.js:uiWatch', `DOM Changes for '${cssSelector}'`, { uiChanges: out }, { mutationList })()\n                }\n            } )\n\n            // Start observing the target node for configured mutations\n            this.#uiObservers[cssSelector].observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:uiWatch', `Started Watching DOM changes for '${cssSelector}'`)()\n        } else {\n            this.#uiObservers[cssSelector].disconnect()\n            delete this.#uiObservers[cssSelector]\n            log('trace', 'uibuilder.module.js:uiWatch', `Stopped Watching DOM changes for '${cssSelector}'`)()\n        }\n\n        return startStop\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- HTML cache and DOM watch --------- //\n\n    /** Clear the saved DOM from localStorage */\n    clearHtmlCache() {\n        this.removeStore('htmlCache')\n        log('trace', 'uibuilder.module.js:clearHtmlCache', 'HTML cache cleared')()\n    }\n\n    /** Restore the complete DOM (the whole web page) from browser localStorage if available */\n    restoreHtmlFromCache() {\n        // Is the html cached? If so, restore it\n        const htmlCache = this.getStore('htmlCache')\n        if (htmlCache) {\n            const targetNode = document.getElementsByTagName('html')[0]\n            // Restore the entire HTML\n            targetNode.innerHTML = htmlCache\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'Restored HTML from cache')()\n        } else {\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'No cache to restore')()\n        }\n    }\n\n    /** Save the current DOM state to browser localStorage.\n     * localStorage is persistent and so can be recovered even after a browser restart.\n     */\n    saveHtmlCache() {\n        // Save the updated entire HTML in localStorage\n        this.setStore('htmlCache', document.documentElement.innerHTML)\n    }\n\n    /** Use the Mutation Observer browser API to watch for and save changes to the HTML\n     * Once the observer is created, it will be reused.\n     * Sending true or undefined will turn on the observer, false turns it off.\n     * saveHtmlCache is called whenever anything changes in the dom. This allows\n     * users to call restoreHtmlFromCache() on page load if desired to completely reload\n     * to the last saved state.\n     * @param {boolean} startStop true=start watching the DOM, false=stop\n     */\n    watchDom(startStop) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.documentElement\n\n        // Need a ref to the Uib this\n        const that = this\n\n        // Create an observer instance\n        if (!this._htmlObserver) {\n            this._htmlObserver = new MutationObserver( function(/* mutationList, observer */) {\n                // We don't need to know the details - so kill off any outstanding mutation records\n                this.takeRecords()\n                // Save the updated entire HTML in localStorage\n                that.saveHtmlCache()\n            } )\n        }\n\n        if (startStop === true || startStop === undefined) {\n            // Start observing the target node for configured mutations\n            this._htmlObserver.observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:watchDom', 'Started Watching and saving DOM changes')()\n        } else {\n            this._htmlObserver.disconnect()\n            log('trace', 'uibuilder.module.js:watchDom', 'Stopped Watching and saving DOM changes')()\n        }\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- Message Handling (To/From Node-RED) -------- //\n\n    /** Handles original control msgs (not to be confused with \"new\" msg._uib controls)\n     * @param {*} receivedCtrlMsg The msg received on the socket.io control channel\n     */\n    _ctrlMsgFromServer(receivedCtrlMsg) {\n\n        // Make sure that msg is an object & not null\n        if (receivedCtrlMsg === null) {\n            receivedCtrlMsg = {}\n        } else if (typeof receivedCtrlMsg !== 'object') {\n            const msg = {}\n            msg['uibuilderCtrl:' + this._ioChannels.control] = receivedCtrlMsg\n            receivedCtrlMsg = msg\n        }\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedCtrlMsg)\n\n        this.set('ctrlMsg', receivedCtrlMsg)\n        this.set('msgsCtrlReceived', ++this.msgsCtrlReceived)\n\n        log('trace', 'Uib:ioSetup:_ctrlMsgFromServer', `Channel '${this._ioChannels.control}'. Received control msg #${this.msgsCtrlReceived}`, receivedCtrlMsg)()\n\n        /** Process control msg types */\n        switch (receivedCtrlMsg.uibuilderCtrl) {\n            // Node-RED is shutting down\n            case 'shutdown': {\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, '\u274C Received \"shutdown\" from server')()\n                this.set('serverShutdown', undefined)\n                break\n            }\n\n            /** We are connected to the server - 1st msg from server */\n            case 'client connect': {\n                log('trace', `Uib:ioSetup:${this._ioChannels.control}`, 'Received \"client connect\" from server')()\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, `\u2705 Server connected. Version: ${receivedCtrlMsg.version}\\nServer time: ${receivedCtrlMsg.serverTimestamp}, Sever time offset: ${this.serverTimeOffset} hours`)()\n\n                if ( !Uib._meta.version.startsWith(receivedCtrlMsg.version.split('-')[0]) ) {\n                    log('warn', `Uib:ioSetup:${this._ioChannels.control}`, `Server version (${receivedCtrlMsg.version}) not the same as the client version (${Uib._meta.version})`)()\n                }\n\n                if (this.autoSendReady === true) { // eslint-disable-line no-lonely-if\n                    log('trace', `Uib:ioSetup:${this._ioChannels.control}/client connect`, 'Auto-sending ready-for-content/replay msg to server')\n                    // @since 0.4.8c Add cacheControl property for use with node-red-contrib-infocache\n                    // @since 6.1.0 Don't bother, we use the \"client connect\" msg\n                    // this._send({\n                    //     'uibuilderCtrl': 'ready for content',\n                    //     'cacheControl': 'REPLAY',\n                    // }, this._ioChannels.control)\n                }\n\n                break\n            }\n\n            default: {\n                log('trace', `uibuilderfe:ioSetup:${this._ioChannels.control}`, `Received ${receivedCtrlMsg.uibuilderCtrl} from server`)\n                // Anything else to do for other control msgs?\n            }\n        } // ---- End of process control msg types ---- //\n    } // -- End of websocket receive CONTROL msg from Node-RED -- //\n\n    /** Do we want to process something? Check pageName, clientId, tabId. Defaults to yes.\n     * @param {*} obj Either a msg._ui or msg._uib object to check\n     * @returns {boolean} True if we should process the inbound _ui/_uib msg, false if not.\n     */\n    _forThis(obj) {\n        let r = true\n\n        // Is this msg for this pageName?\n        if (obj.pageName && obj.pageName !== this.pageName) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this page')()\n            r = false\n        }\n\n        // Is this msg for this clientId?\n        if (obj.clientId && obj.clientId !== this.clientId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this clientId')()\n            r = false\n        }\n\n        // Is this msg for this tabId?\n        if (obj.tabId && obj.tabId !== this.tabId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this tabId')()\n            r = false\n        }\n\n        return r\n    }\n\n    // Handle received messages - Process some msgs internally, emit specific events on document that make it easy for coders to use\n    _msgRcvdEvents(msg) {\n        // Message received\n        this._dispatchCustomEvent('uibuilder:stdMsgReceived', msg)\n\n        // Topic\n        if ( msg.topic ) this._dispatchCustomEvent(`uibuilder:msg:topic:${msg.topic}`, msg)\n\n        // Handle msg._uib special requests\n        if (msg._uib) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._uib)) return\n\n            /** Process a client reload request from Node-RED - as the page is reloaded, everything else is ignored\n             * Note that msg._ui.reload is also actioned via the _ui processing below */\n            if (msg._uib.reload === true) {\n                log('trace', 'Uib:_msgRcvdEvents:_uib:reload', 'reloading')()\n                location.reload()\n                return\n            }\n\n            // Process msg._uib.command messages - allows Node-RED to run uibuilder FE functions\n            if (msg._uib.command) {\n                this._uibCommand(msg)\n                return\n            }\n\n            // Better to request via msg._ui - these are for backwards compatibility\n            if ( msg._uib.componentRef === 'globalNotification' ) {\n                _ui.showDialog('notify', msg._uib.options, msg)\n            }\n            if ( msg._uib.componentRef === 'globalAlert' ) {\n                _ui.showDialog('alert', msg._uib.options, msg)\n            }\n        }\n\n        // Handle msg._ui requests\n        if ( msg._ui ) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._ui)) return\n\n            log('trace', 'Uib:_msgRcvdEvents:_ui', 'Calling _uiManager')()\n            this._dispatchCustomEvent('uibuilder:msg:_ui', msg)\n            _ui._uiManager(msg)\n        }\n    } // --- end of _msgRcvdEvents ---\n\n    /** Internal send fn. Send a standard or control msg back to Node-RED via Socket.IO\n     * NR will generally expect the msg to contain a payload topic\n     * @param {object} msgToSend The msg object to send.\n     * @param {string} [channel=uiBuilderClient] The Socket.IO channel to use, must be in self.ioChannels or it will be ignored\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    _send(msgToSend, channel, originator = '') {\n        if (channel === null || channel === undefined) channel = this._ioChannels.client\n\n        // Make sure msgToSend is an object\n        if (channel === this._ioChannels.client) {\n            msgToSend = makeMeAnObject(msgToSend, 'payload')\n        } else if (channel === this._ioChannels.control) {\n            msgToSend = makeMeAnObject(msgToSend, 'uibuilderCtrl')\n            if (!Object.prototype.hasOwnProperty.call(msgToSend, 'uibuilderCtrl')) {\n                msgToSend.uibuilderCtrl = 'manual send'\n            }\n            // help remember where this came from as ctrl msgs can come from server or client\n            msgToSend.from = 'client'\n        }\n\n        /** since 2020-01-02 Added _socketId which should be the same as the _socketId on the server */\n        msgToSend._socketId = this._socket.id\n\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n\n        // Add the originator metadata if required\n        if (originator === '' && this.originator !== '') originator = this.originator\n        if (originator !== '') Object.assign(msgToSend, { '_uib': { 'originator': originator } })\n\n        // If the msg does not have a topic - see if we want to add one\n        if ( !Object.prototype.hasOwnProperty.call(msgToSend, 'topic') ) {\n            // From the default (`uibuilder.set('topic', 'some topic')`)\n            if (this.topic !== undefined && this.topic !== '') msgToSend.topic = this.topic\n            else {\n                // Did the last inbound msg have a topic?\n                if ( Object.prototype.hasOwnProperty.call(this, 'msg') && Object.prototype.hasOwnProperty.call(this.msg, 'topic') ) {\n                    msgToSend.topic = this.msg.topic\n                }\n            }\n        }\n\n        // If a standard send & _ui property exists, make sure to add _ui.from = 'client'\n        if (msgToSend._ui) msgToSend._ui.from = 'client'\n\n        // Track how many messages have been sent & last msg sent\n        let numMsgs\n        if (channel === this._ioChannels.client) {\n            this.set('sentMsg', msgToSend)\n            numMsgs = this.set('msgsSent', ++this.msgsSent)\n        } else if (channel === this._ioChannels.control) {\n            this.set('sentCtrlMsg', msgToSend)\n            numMsgs = this.set('msgsSentCtrl', ++this.msgsSentCtrl)\n        }\n        log('trace', 'Uib:_send', ` Channel '${channel}'. Sending msg #${numMsgs}`, msgToSend)()\n\n        this._socket.emit(channel, msgToSend)\n    } // --- End of Send Msg Fn --- //\n\n    /** Callback handler for messages from Node-RED\n     * NOTE: `this` is the class here rather the `socket` as would be normal since we bind the correct `this` in the call.\n     *       Use this._socket if needing reference to the socket.\n     * @callback ioSetupFromServer Called from ioSetup/this._socket.on(this.#ioChannels.server, this.stdMsgFromServer.bind(this))\n     * @param {object} receivedMsg The msg object from Node-RED\n     * @this Uib\n     */\n    _stdMsgFromServer(receivedMsg) {\n\n        // Make sure that msg is an object & not null\n        receivedMsg = makeMeAnObject(receivedMsg, 'payload')\n\n        // Don't process if the inbound msg is not for us\n        if (receivedMsg._uib && !this._forThis(receivedMsg._uib)) return\n        if (receivedMsg._ui && !this._forThis(receivedMsg._ui)) return\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedMsg)\n\n        // Track how many messages have been received\n        this.set('msgsReceived', ++this.msgsReceived)\n\n        // Emit specific document events on msg receipt that make it easy for coders to use\n        this._msgRcvdEvents(receivedMsg)\n\n        if ( !('_ui' in receivedMsg && !('payload' in receivedMsg)) ) {\n            // Save the msg for further processing\n            this.set('msg', receivedMsg)\n        }\n\n        log('info', 'Uib:ioSetup:stdMsgFromServer', `Channel '${this._ioChannels.server}'. Received msg #${this.msgsReceived}.`, receivedMsg)()\n\n        // ! NOTE: Don't try to handle specialist messages here. See _msgRcvdEvents.\n    } // -- End of websocket receive DATA msg from Node-RED -- //\n\n    /** Process msg._uib.command - Remember to update #extCommands with new allowed commands\n     * @param {object} msg Msg from Node-RED containing a msg._uib object\n     */\n    _uibCommand(msg) {\n        if (!msg._uib || !msg._uib.command) {\n            log('error', 'uibuilder:_uibCommand', 'Invalid command message received', { msg })()\n            msg.payload = msg.error = 'Invalid command message received'\n            this.send(msg)\n            return\n        }\n        const cmd = msg._uib.command\n        // Disallowed command request outputs error and ignores the msg (NB: Case must match)\n        if (!this.#extCommands.includes(cmd.trim())) {\n            log('error', 'Uib:_uibCommand', `Command '${cmd} is not allowed to be called externally`)()\n            return\n        }\n        const prop = msg._uib.prop\n        const value = msg._uib.value\n        const quiet = msg._uib.quiet ?? false\n        let response, info\n\n        // Don't forget to update `#extCommands`, `docs/client-docs/control-from-node-red.md` & `functions.md`\n        switch (cmd) {\n            case 'elementIsVisible': {\n                response = this.elementIsVisible(prop)\n                // info = `Element \"${prop}\" ${response ? 'is visible' : 'is not visible'}`\n                break\n            }\n\n            case 'elementExists': {\n                response = this.elementExists(prop, false)\n                info = `Element \"${prop}\" ${response ? 'exists' : 'does not exist'}`\n                break\n            }\n\n            case 'get': {\n                response = this.get(prop)\n                break\n            }\n\n            case 'getManagedVarList': {\n                if (prop === 'full') response = this.getManagedVarList()\n                else response = Object.values(this.getManagedVarList())\n                break\n            }\n\n            case 'getWatchedVars': {\n                if (prop === 'full') response = this.getWatchedVars()\n                else response = Object.values(this.getWatchedVars())\n                break\n            }\n\n            case 'htmlSend': {\n                response = this.htmlSend('', false)\n                break\n            }\n\n            case 'include': {\n                // include is async\n                response = _ui.include(prop, value)\n                break\n            }\n\n            case 'navigate': {\n                let newUrl\n                if (prop) newUrl = prop\n                else if (value) newUrl = value\n                response = this.navigate(newUrl)\n                break\n            }\n\n            case 'scrollTo': {\n                response = this.scrollTo(prop, value)\n                break\n            }\n\n            case 'set': {\n                let store = false\n                let autoload = false\n                if (msg._uib.options && msg._uib.options.store) {\n                    if (msg._uib.options.store === true) store = true\n                    if (msg._uib.options.autoload === true) autoload = true\n                }\n                response = this.set(prop, value, store, autoload)\n                break\n            }\n\n            case 'showMsg': {\n                response = this.showMsg(value, prop)\n                break\n            }\n\n            case 'showStatus': {\n                response = this.showStatus(value, prop)\n                break\n            }\n\n            case 'uiGet': {\n                response = _ui.uiGet(prop, value)\n                break\n            }\n\n            case 'uiWatch': {\n                response = this.uiWatch(prop)\n                break\n            }\n\n            case 'watchUrlHash': {\n                response = this.watchUrlHash(prop)\n                break\n            }\n\n            default: {\n                log('warning', 'Uib:_uibCommand', `Command '${cmd}' not yet implemented`)()\n                break\n            }\n        }\n\n        if (quiet !== true) {\n            if (response === undefined) {\n                response = `'${prop}' is undefined`\n            }\n            if (Object(response).constructor === Promise) {\n                // response = `'${cmd} ${prop}' submitted. Cmd is async, no response available`\n                response\n                    .then( (/** @type {any} */ data) => {\n                        msg.payload = msg._uib.response = data\n                        msg.info = msg._uib.info = info\n                        if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                        this.send(msg)\n                        return true\n                    })\n                    .catch( err => {\n                        log(0, 'Uib:_uibCommand', 'Error: ', err)()\n                    })\n            } else {\n                msg.payload = msg._uib.response = response\n                msg.info = msg._uib.info = info\n                if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                this.send(msg)\n            }\n        }\n    } // --- end of _uibCommand ---\n\n    /** Send log text to uibuilder's beacon endpoint (works even if socket.io not connected)\n     * @param {string} txtToSend Text string to send\n     * @param {string|undefined} logLevel Log level to use. If not supplied, will default to debug\n     */\n    beaconLog(txtToSend, logLevel) {\n        if (!logLevel) logLevel = 'debug'\n        navigator.sendBeacon('./_clientLog', `${logLevel}::${txtToSend}`)\n    }\n\n    /** Easily send the entire DOM/HTML msg back to Node-RED\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     * @param {boolean} [send] If true (default) directly send response to Node-RED. Is false when calling from Node-RED as a command.\n     * @returns {string} The HTML as a string\n     */\n    htmlSend(originator = '', send = true) {\n        const out = `<!doctype html>\\n${document.documentElement.outerHTML}`\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            payload: out,\n            length: out.length,\n            topic: this.topic,\n        }\n\n        log('trace', 'Uib:htmlSend', 'Sending full HTML to Node-RED', msg)()\n\n        if (send === true) this._send(msg, this._ioChannels.client, originator)\n        return out\n    }\n\n    /** Send log info back to Node-RED over uibuilder's websocket control output (Port #2)\n     * @param {...*} arguments All arguments passed to the function are added to the msg.payload\n     */\n    logToServer() {\n        this.sendCtrl({\n            uibuilderCtrl: 'client log message',\n            payload: arguments,\n            // \"version\":\"6.1.0-iife.min\",\n            _socketId: this._socket.id,\n            // \"ip\":\"::1\",\n            clientId: this.clientId,\n            tabId: this.tabId,\n            // \"url\":\"esp-test\",\n            pageName: this.pageName,\n            connections: this.connectedNum,\n            lastNavType: this.lastNavType,\n        })\n    }\n\n    /** Easily send a msg back to Node-RED on a DOM event\n     * @example In plain HTML/JavaScript\n     *    `<button id=\"button1\" name=\"button 1\" data-fred=\"jim\"></button>`\n     *    $('#button1').onclick = (evt) => {\n     *      uibuilder.eventSend(evt)\n     *    }\n     * @example\n     * In VueJS: `<b-button id=\"myButton1\" @click=\"doEvent\" data-something=\"hello\"></b-button>`\n     * In VueJS methods: `doEvent: uibuilder.eventSend,`\n     *\n     * All `data-` attributes will be passed back to Node-RED,\n     *    use them instead of arguments in the click function.\n     *    All target._ui custom properties are also passed back to Node-RED.\n     *\n     * @param {MouseEvent|any} domevent DOM Event object\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    eventSend(domevent, originator = '') { // eslint-disable-line sonarjs/cognitive-complexity\n        // @ts-ignore Handle case where vue messes up `this`\n        if ( this.$attrs ) {\n            log('error', 'Uib:eventSend', '`this` has been usurped by VueJS. Make sure that you wrap the call in a function: `doEvent: function (event) { uibuilder.eventSend(event) },`' )()\n            return\n        }\n        if (!domevent && !event) {\n            log('warn', 'Uib:eventSend', 'Neither the domevent nor the hidden event properties are set. You probably called this function directly rather than applying to an on click event.' )()\n            return\n        }\n        // Handle no argument, e.g. <button onClick=\"uibuilder.eventSend()\"> - event is a hidden variable when fn used in addEventListener\n        if (!domevent || !domevent.constructor) domevent = event\n\n        // The argument must be a DOM event\n        if ((!domevent.constructor.name.endsWith('Event')) || (!domevent.currentTarget)) {\n            log('warn', 'Uib:eventSend', `ARGUMENT NOT A DOM EVENT - use data attributes not function arguments to pass data. Arg Type: ${domevent.constructor.name}`, domevent)()\n            return\n        }\n\n        // Prevent default event action\n        domevent.preventDefault()\n\n        // The target element\n        const target = domevent.currentTarget\n\n        // Get target properties - only shows custom props not element default ones\n        const props = {}\n        Object.keys(target).forEach( key => {\n            if (key.startsWith('_')) return // Exclude private\n            props[key] = target[key]\n        })\n\n        // Attempt to get target attributs - can fail for certain target types\n        const ignoreAttribs = ['class', 'id', 'name']\n        let attribs\n        try {\n            attribs = Object.assign({},\n                ...Array.from(target.attributes,\n                    ( { name, value } ) => {\n                        if ( !ignoreAttribs.includes(name) ) {\n                            return ({ [name]: value })\n                        }\n                        return undefined\n                    }\n                )\n            )\n        } catch (e) {}\n\n        // If target embedded in a form, include the form data\n        let form\n        const frmVals = []\n        if ( target.form ) {\n            form = {}\n            form.valid = target.form.checkValidity()\n            Object.values(target.form).forEach( (frmEl, i) => {\n                const id = frmEl.id !== '' ? frmEl.id : (frmEl.name !== '' ? frmEl.name : `${i}-${frmEl.type}`)\n\n                // We must have both an element id (we may have forced one above) AND\n                // the element type MUST be not undefined - to allow for the extra properties added by frameworks such as Svelte\n                if (id !== '' && frmEl.type) {\n                    // Stupid HTML doesn't use value attrib for checkboxes. So override if value is set to default\n                    if ('checked' in frmEl && frmEl.value === 'on') frmEl.value = frmEl.checked.toString()\n\n                    frmVals.push( { key: id, val: frmEl.value } ) // simplified for addition to msg.payload\n\n                    form[id] = {\n                        'id': frmEl.id,\n                        'name': frmEl.name,\n                        'value': frmEl.value,\n                        'valid': frmEl.checkValidity(),\n                        'type': frmEl.type,\n                    }\n\n                    if (form[id].valid === false) {\n                        const v = frmEl.validity\n                        form[id].validity = {\n                            badInput: v.badInput === true ? v.badInput : undefined,\n                            customError: v.customError === true ? v.customError : undefined,\n                            patternMismatch: v.patternMismatch === true ? v.patternMismatch : undefined,\n                            rangeOverflow: v.rangeOverflow === true ? v.rangeOverflow : undefined,\n                            rangeUnderflow: v.rangeUnderflow === true ? v.rangeUnderflow : undefined,\n                            stepMismatch: v.stepMismatch === true ? v.stepMismatch : undefined,\n                            tooLong: v.tooLong === true ? v.tooLong : undefined,\n                            tooShort: v.tooShort === true ? v.tooShort : undefined,\n                            typeMismatch: v.typeMismatch === true ? v.typeMismatch : undefined,\n                            valueMissing: v.valueMissing === true ? v.valueMissing : undefined,\n                        }\n                    }\n\n                    if (frmEl.dataset) form[id].data = frmEl.dataset\n                }\n            })\n        }\n\n        // Check for CSS Classes\n        let classes\n        try {\n            classes = Array.from(target.classList)\n        } catch (e) {}\n\n        // Each `data-xxxx` attribute is added as a property\n        let payload = { ...target.dataset }\n\n        // Handle Notification events\n        let nprops\n        if ( Object.prototype.toString.call(target) === '[object Notification]') {\n            // Fixed payload for convenience\n            payload = `notification-${target.userAction}`\n            // Capture the notification properties\n            nprops = {\n                // userAction: target.userAction, // uib custom prop: click, close or error\n                actions: target.actions,\n                badge: target.badge,\n                body: target.body,\n                data: target.data,\n                dir: target.dir,\n                icon: target.icon,\n                image: target.image,\n                lang: target.lang,\n                renotify: target.renotify,\n                requireInteraction: target.requireInteraction,\n                silent: target.silent,\n                tag: target.tag,\n                timestamp: target.timestamp,\n                title: target.title,\n                vibrate: target.vibrate,\n            }\n        }\n        // console.log(Object.prototype.toString.call(target))\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            // - this may be an empty Object if no data attributes defined\n            payload: payload,\n\n            _ui: {\n                type: 'eventSend',\n                id: target.id !== '' ? target.id : undefined,\n                name: target.name !== '' ? target.name : undefined,\n                slotText: target.textContent ? target.textContent.substring(0, 255) : undefined,\n\n                form: form,\n                props: props,\n                attribs: attribs,\n                classes: classes,\n\n                notification: nprops,\n\n                event: domevent.type,\n                altKey: domevent.altKey,\n                ctrlKey: domevent.ctrlKey,\n                shiftKey: domevent.shiftKey,\n                metaKey: domevent.metaKey,\n\n                pointerType: domevent.pointerType,\n                nodeName: target.nodeName,\n\n                clientId: this.clientId,\n                pageName: this.pageName,\n                tabId: this.tabId,\n            }\n        }\n\n        if (frmVals.length > 0) {\n            frmVals.forEach( entry => {\n                msg.payload[entry.key] = entry.val\n            })\n        }\n\n        if (domevent.type === 'change') {\n            // Checkboxes don't have a value!!\n            msg._ui.newValue = msg.payload.value = 'checked' in target ? target.checked : domevent.target.value\n        }\n\n        log('trace', 'Uib:eventSend', 'Sending msg to Node-RED', msg)()\n        if (target.dataset && target.dataset.length === 0) log('warn', 'Uib:eventSend', 'No payload in msg. data-* attributes should be used.')()\n\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Send a standard message to NR\n     * @example uibuilder.send({payload:'Hello'})\n     * @param {object} msg Message to send\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    send(msg, originator = '') {\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    // ! TODO: Rooms do not auto-reconnect. Add tracking and update _onConnect\n\n    // NOTE: Rooms only understood by server not client so we have to use custom emits\n    //       They do not auto-reconnect\n\n    /** Send a msg to a pre-defined Socket.IO room\n     * @link https://socket.io/docs/v4/rooms/\n     * @param {string} room Name of a Socket.IO pre-defined room.\n     * @param {*} msg Message to send\n     */\n    sendRoom(room, msg) {\n        this._socket.emit('uib-room-send', room, msg )\n    }\n\n    joinRoom(room) {\n        this._socket.emit('uib-room-join', room)\n    }\n\n    leaveRoom(room) {\n        this._socket.emit('uib-room-leave', room)\n    }\n\n    /** Send a control msg to NR\n     * @param {object} msg Message to send\n     */\n    sendCtrl(msg) {\n        this._send(msg, this._ioChannels.control)\n    }\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Socket.IO -------- //\n\n    /** Return the Socket.IO namespace\n     * The cookie method is the most reliable but this falls back to trying to work it\n     * out from the URL if cookies not available. That won't work if page is in a sub-folder.\n     * since 2017-10-21 Improve method to cope with more complex paths - thanks to Steve Rickus @shrickus\n     * since 2017-11-10 v1.0.1 Check cookie first then url. cookie works even if the path is more complex (e.g. sub-folder)\n     * since 2020-01-25 Removed httpRoot from namespace to prevent proxy induced errors\n     * @returns {string} Socket.IO namespace\n     */\n    _getIOnamespace() {\n\n        let ioNamespace\n\n        /** Try getting the namespace cookie. */\n        ioNamespace = this.cookies['uibuilder-namespace']\n\n        // if it wasn't available, try using the current url path\n        if (ioNamespace === undefined || ioNamespace === '') {\n            // split url path & eliminate any blank elements, and trailing or double slashes\n            const u = window.location.pathname.split('/')\n                .filter(function (t) { return t.trim() !== '' })\n\n            /** since v2.0.5 Extra check for 0 length, Issue #73. since 2017-11-06 If the last element of the path is an .html file name, remove it */\n            if (u.length > 0 && (u[u.length - 1].endsWith('.html'))) u.pop()\n\n            // Get the last part of the url path, this MUST match the namespace in uibuilder\n            ioNamespace = u.pop()\n\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via url path: ${ioNamespace}`)()\n        } else {\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via cookie: ${ioNamespace}`)()\n        }\n\n        this.url = ioNamespace\n        // Namespace HAS to start with a /\n        ioNamespace = '/' + ioNamespace\n\n        log('trace', 'uibuilder.module.js:getIOnamespace', `Final Socket.IO namespace: ${ioNamespace}`)()\n\n        return ioNamespace\n    } // --- End of set IO namespace --- //\n\n    /** Function used to check whether Socket.IO is connected to the server, reconnect if not (recursive)\n     * @param {number} [delay] Initial delay before checking (ms). Default=2000ms\n     * @param {number} [factor] Multiplication factor for subsequent checks (delay*factor). Default=1.5\n     * @param {number} [depth] Recursion depth\n     * @returns {boolean|undefined} Whether or not Socket.IO is connected to uibuilder in Node-RED\n     */\n    _checkConnect(delay, factor, depth = 1) {\n        if ( navigator.onLine === false ) return // Don't bother if we know we are offline\n\n        if (!delay) delay = this.retryMs\n        if (!factor) factor = this.retryFactor\n\n        log('trace', 'Uib:checkConnect', `Checking connection. Connected: ${this._socket.connected}. Timer: ${this.#timerid}. Depth: ${depth}. Delay: ${delay}. Factor: ${factor}`, this._socket)()\n\n        // If we are connected ...\n        if (this._socket.connected === true) {\n            // Clear the setTimeout\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this.set('ioConnected', true)\n            this.set('socketError', null)\n            return true\n        }\n\n        // ... we aren't connected so:\n        this.set('ioConnected', false)\n\n        // we only want one running at a time\n        if (this.#timerid) window.clearTimeout(this.#timerid)\n\n        // Create the new timer\n        this.#timerid = window.setTimeout(() => {\n            log('warn', 'Uib:checkConnect:setTimeout', `Socket.IO reconnection attempt. Current delay: ${delay}. Depth: ${depth}`)()\n\n            // this is necessary sometimes when the socket fails to connect on startup\n            this._socket.disconnect()\n\n            // Try to reconnect\n            this._socket.connect()\n\n            // don't need to check whether we have connected as the timer will have been cleared if we have\n            this.#timerid = null\n\n            // @ts-ignore Create new timer for next time round with extended delay\n            this._checkConnect(delay * factor, factor, depth++)\n        }, delay)\n\n        return false\n    } // --- End of checkConnect Fn--- //\n\n    // See message handling section for msg receipt handlers\n\n    /** Called by _ioSetup when Socket.IO connects to Node-RED */\n    _onConnect() {\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n        log('info', 'Uib:ioSetup', `\u2705 SOCKET CONNECTED. Connection count: ${this.connectedNum}, Is a Recovery?: ${this._socket.recovered}. \\nNamespace: ${this.ioNamespace}`)()\n        this._dispatchCustomEvent('uibuilder:socket:connected', { 'numConnections': this.connectedNum, 'isRecovery': this._socket.recovered })\n\n        this._checkConnect() // resets any reconnection timers & sets connected flag\n    }\n\n    /** Called by _ioSetup when Socket.IO disconnects from Node-RED\n     * @param {string} reason Disconnection title\n     */\n    _onDisconnect(reason) {\n        // reason === 'io server disconnect' - redeploy of Node instance\n        // reason === 'transport close' - Node-RED terminating\n        // reason === 'ping timeout' - didn't receive a pong response?\n        log('info', 'Uib:ioSetup:socket-disconnect', `\u26D4 Socket Disconnected. Reason: ${reason}`)()\n\n        this._dispatchCustomEvent('uibuilder:socket:disconnected', reason)\n\n        /** A workaround for SIO's failure to reconnect after a disconnection */\n        this._checkConnect()\n    }\n\n    /** Setup Socket.io\n     * since v2.0.0-beta2 Moved to a function and called by the user (uibuilder.start()) so that namespace & path can be passed manually if needed\n     * @returns {boolean} Attaches socket.io manager to self._socket and updates self.ioNamespace & self.ioPath as needed\n     */\n    _ioSetup() {\n\n        // Just a notification, actual load is done outside the class (see start of file)\n        if (io === undefined) {\n            log('error', 'Uib:ioSetup', 'Socket.IO client not loaded, Node-RED comms will not work')()\n            return false\n        }\n\n        // If socket is already set up, close it and remove all of the listeners\n        if (this._socket) {\n            log('trace', 'Uib:ioSetup', 'Removing listeners in preparation for redoing Socket.IO connections')()\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this._socket.close()\n            this._socket.offAny()\n            this._socket = undefined\n            this.set('ioConnected', false)\n        }\n\n        // Update the URL path to make sure we have the right one\n        this.socketOptions.path = this.ioPath\n\n        // NOTE: this._socket.auth is now set by callback and so automatically updated for each client (re)connection. No need to set here\n\n        // Create the socket - make sure client uses Socket.IO version from the uibuilder module (using path)\n        log('trace', 'Uib:ioSetup', `About to create IO object. Transports: [${this.socketOptions.transports.join(', ')}]`)()\n        this._socket = io(this.ioNamespace, this.socketOptions)\n\n        this._connectGlobal()\n\n        /** When the socket is connected - set ioConnected flag and reset connect timer  */\n        this._socket.on('connect', this._onConnect.bind(this))\n\n        // RECEIVE a STANDARD, non-control msg from Node-RED server\n        this._socket.on(this._ioChannels.server, this._stdMsgFromServer.bind(this))\n\n        // RECEIVE a CONTROL msg from Node-RED server - see also sendCtrl()\n        this._socket.on(this._ioChannels.control, this._ctrlMsgFromServer.bind(this))\n\n        // When the socket is disconnected ..............\n        this._socket.on('disconnect', this._onDisconnect.bind(this))\n\n        // Socket.io connection error - probably the wrong ioPath - or client is offline\n        this._socket.on('connect_error', (err) => {\n            if ( navigator.onLine === false ) return // Don't bother with an error if we know we are offline\n            log('error', 'Uib:ioSetup:connect_error', `\u274C Socket.IO Connect Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket connect error processing ---\n\n        // Socket.io error - from the server (socket.use middleware triggered an error response)\n        this._socket.on('error', (err) => {\n            log('error', 'Uib:ioSetup:error', `\u274C Socket.IO Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket error processing ---\n\n        // Ensure we are connected, retry if not\n        this._checkConnect()\n\n        return true\n\n        /* We really don't need these, just for interest\n            self._socket.io.on('packet', function onPacket(data){\n                // we get one of these for each REAL msg (not ping/pong)\n                console.debug('PACKET', data)\n            })\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n                //console.dir(self._socket)\n            }) // --- End of socket pong processing ---\n            self._socket.io.on('packet', function(data){\n                // We get one of these for actual messages, not ping/pong\n                console.debug('PACKET', data)\n            })\n            self._socket.on('connect_timeout', function(timeout) {\n                console.debug('SOCKET CONNECT TIMEOUT - Namespace: ' + ioNamespace + ', Timeout: ' + timeout)\n            }) // --- End of socket connect timeout processing ---\n            self._socket.on('reconnect', function(attemptNum) {\n                console.debug('SOCKET RECONNECTED - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect processing ---\n            self._socket.on('reconnect_attempt', function(attemptNum) {\n                console.debug('SOCKET RECONNECT ATTEMPT - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect_attempt processing ---\n            self._socket.on('reconnecting', function(attemptNum) {\n                console.debug('SOCKET RECONNECTING - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnecting processing ---\n            self._socket.on('reconnect_error', function(err) {\n                console.debug('SOCKET RECONNECT ERROR - Namespace: ' + ioNamespace + ', Reason: ' + err.message)\n                //console.dir(err)\n            }) // --- End of socket reconnect_error processing ---\n            self._socket.on('reconnect_failed', function() {\n                console.debug('SOCKET RECONNECT FAILED - Namespace: ' + ioNamespace)\n            }) // --- End of socket reconnect_failed processing ---\n            self._socket.on('ping', function() {\n                console.debug('SOCKET PING')\n            }) // --- End of socket ping processing ---\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n            }) // --- End of socket pong processing ---\n            */\n    } // ---- End of ioSetup ---- //\n\n    /** Connect to global namespace & create global listener that updates the `globalMsg` var */\n    _connectGlobal() {\n        this._socketGlobal = io('/', this.socketOptions)\n        this._socketGlobal.onAny( (...args) => {\n            this.set('globalMsg', args.slice(0, -1))\n        })\n    }\n\n    /** Manually (re)connect socket.io */\n    connect() {\n        // ? Should I use this._checkConnect()?\n        this._socket.connect()\n    }\n\n    /** Manually disconnect socket.io and stop any auto-reconnect timer */\n    disconnect() {\n        this._socket.disconnect()\n        // As this is a manual disconnect, stop any reconnect timers\n        if (this.#timerid) window.clearTimeout(this.#timerid)\n    }\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Class construction & startup method -------- //\n\n    constructor() {\n        log('trace', 'Uib:constructor', 'Starting')()\n\n        // Track whether the client is online or offline\n        window.addEventListener('offline', (e) => {\n            this.set('online', false)\n            this.set('ioConnected', false)\n            log('warn', 'Browser', 'DISCONNECTED from network')()\n        })\n        window.addEventListener('online', (e) => {\n            this.set('online', true)\n            log('warn', 'Browser', 'Reconnected to network')()\n            this._checkConnect()\n        })\n\n        document.cookie.split(';').forEach((c) => {\n            const splitC = c.split('=')\n            this.cookies[splitC[0].trim()] = splitC[1]\n        })\n\n        /** Client ID set by uibuilder - lasts until browser profile is closed, applies to all tabs */\n        this.set('clientId', this.cookies['uibuilder-client-id'])\n        log('trace', 'Uib:constructor', 'Client ID: ', this.clientId)()\n\n        /** Tab ID - lasts while the tab is open (even if reloaded)\n         * WARNING: Duplicating a tab retains the same tabId\n         */\n        this.set('tabId', window.sessionStorage.getItem('tabId'))\n        if (!this.tabId) {\n            this.set('tabId', `t${Math.floor(Math.random() * 1000000)}`)\n            window.sessionStorage.setItem('tabId', this.tabId)\n        }\n\n        // document.addEventListener('pagehide', (event) => {\n        //     // console.log(`pagehide. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pagehide. From Cache?: ${event.persisted}`)\n        // })\n        // document.addEventListener('pageshow', (event) => {\n        //     // console.log(`pageshow. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pageshow. From Cache?: ${event.persisted}`)\n        // })\n        document.addEventListener('load', () => {\n            this.set('isVisible', true)\n        })\n        document.addEventListener('visibilitychange', () => {\n            // hidden=unload, minimise. visible=un-minimise (not fired on load)\n            this.set('isVisible', document.visibilityState === 'visible')\n            this.sendCtrl({ uibuilderCtrl: 'visibility', isVisible: this.isVisible })\n            // navigator.userActivation is experimental Chromium only\n            // console.log('visibilitychange', ':', `Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n            // navigator.sendBeacon('./_clientLog', `${(new Date()).toISOString()} Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n        })\n\n        // Set a listener to update showStatus table if it is active\n        document.addEventListener('uibuilder:propertyChanged', (event) => {\n            if (!this.#isShowStatus) return\n\n            // @ts-ignore\n            if (event.detail.prop in this.#showStatus) {\n                // @ts-ignore\n                document.querySelector(`td[data-vartype=\"${event.detail.prop}\"]`).innerText = JSON.stringify(event.detail.value)\n            }\n        })\n\n        this.set('ioNamespace', this._getIOnamespace())\n\n        //#region - Try to make sure client uses Socket.IO client version from the uibuilder module (using cookie or path) @since v2.0.0 2019-02-24 allows for httpNodeRoot\n\n        /** httpNodeRoot (to set path) */\n        if ('uibuilder-webRoot' in this.cookies) {\n            this.set('httpNodeRoot', this.cookies['uibuilder-webRoot'])\n            log('trace', 'Uib:constructor', `httpNodeRoot set by cookie to \"${this.httpNodeRoot}\"`)()\n        } else {\n            // split current url path, eliminate any blank elements and trailing or double slashes\n            const fullPath = window.location.pathname.split('/').filter(function (t) { return t.trim() !== '' })\n            /** handle url includes file name - @since v2.0.5 Extra check for 0 length, Issue #73. */\n            if (fullPath.length > 0 && fullPath[fullPath.length - 1].endsWith('.html')) fullPath.pop()\n            fullPath.pop() // gives the last path section of the url\n            this.set('httpNodeRoot', `/${fullPath.join('/')}`)\n            log('trace', '[Uib:constructor]', `httpNodeRoot set by URL parsing to \"${this.httpNodeRoot}\". NOTE: This may fail for pages in sub-folders.`)()\n        }\n        this.set('ioPath', urlJoin(this.httpNodeRoot, Uib._meta.displayName, 'vendor', 'socket.io'))\n        log('trace', 'Uib:constructor', `ioPath: \"${this.ioPath}\"`)()\n\n        //#endregion\n\n        // Work out pageName\n        this.set('pageName', window.location.pathname.replace(`${this.ioNamespace}/`, ''))\n        if ( this.pageName.endsWith('/') ) this.set('pageName', `${this.pageName}index.html`)\n        if ( this.pageName === '' ) this.set('pageName', 'index.html')\n\n        // Attempt to restore autoload variables\n        try {\n            const autoloadVars = this.getStore('_uibAutoloadVars')\n            if (Object.keys(autoloadVars).length > 0) {\n                Object.keys(autoloadVars).forEach( (id) => {\n                    this.set(id, this.getStore(id))\n                })\n            }\n        } catch (e) {}\n\n        this._dispatchCustomEvent('uibuilder:constructorComplete')\n\n        log('trace', 'Uib:constructor', 'Ending')()\n    }\n\n    /** Start up Socket.IO comms and listeners\n     * This has to be done separately because if running from a web page in a sub-folder of src/dist, uibuilder cannot\n     * necessarily work out the correct ioPath to use.\n     * Also, if cookies aren't permitted in the browser, both ioPath and ioNamespace may need to be specified.\n     * @param {object} [options] The start options object.\n     * @returns {void}\n     */\n    start(options) {\n        log('trace', 'Uib:start', 'Starting')()\n\n        // Cancel the msg event handler if already present\n        if ( this.#MsgHandler ) this.cancelChange('msg', this.#MsgHandler)\n\n        if (this.started === true) {\n            log('info', 'Uib:start', 'Start function already called. Resetting Socket.IO and msg handler.')()\n        }\n\n        log('log', 'Uib:start', 'Cookies: ', this.cookies, `\\nClient ID: ${this.clientId}`)()\n        log('trace', 'Uib:start', 'ioNamespace: ', this.ioNamespace, `\\nioPath: ${this.ioPath}`)()\n\n        // Handle options\n        if (options) {\n            if (options.ioNamespace) this.set('ioNamespace', options.ioNamespace)\n            if (options.ioPath) this.set('ioPath', options.ioPath)\n            if (options.nopolling && this.socketOptions.transports[0] === 'polling') this.socketOptions.transports.shift()\n            // See below for handling of options.loadStylesheet\n        }\n\n        // Do we need to load styles?\n        if ( document.styleSheets.length >= 1 || (document.styleSheets.length === 1 && document.styleSheets[0].cssRules.length === 0) ) {\n            log('info', 'Uib:start', 'Styles already loaded so not loading uibuilder default styles.')()\n        } else {\n            if (options && options.loadStylesheet === false) log('info', 'Uib:start', 'No styles loaded & options.loadStylesheet === false.')()\n            else {\n                log('info', 'Uib:start', 'No styles loaded, loading uibuilder default styles.')()\n                this.loadStyleSrc(`${this.httpNodeRoot}/uibuilder/uib-brand.min.css`)\n            }\n        }\n\n        /** Handle specialist messages like reload and _ui -> Moved to _msgRcvdEvents */\n\n        // Track last browser navigation type: navigate, reload, back_forward, prerender\n        // TODO Needs more work - updates on navigation needed?\n        const [entry] = performance.getEntriesByType('navigation')\n        // @ts-ignore\n        this.set('lastNavType', entry.type)\n\n        // Start up (or restart) Socket.IO connections and listeners. Returns false if io not found\n        this.set('started', this._ioSetup())\n\n        if ( this.started === true ) {\n            log('trace', 'Uib:start', 'Start completed. Socket.IO client library loaded.')()\n        } else {\n            log('error', 'Uib:start', 'Start completed. ERROR: Socket.IO client library NOT LOADED.')()\n        }\n\n        // Watch for URL hash changes in case using a front-end router. Updates watched var `urlHash` and socket.io `auth.urlHash`\n        this._watchHashChanges()\n\n        // Check if Vue is present (used for dynamic UI processing)\n        if (window['Vue']) {\n            this.set('isVue', true)\n            try {\n                this.set('vueVersion', window['Vue'].version)\n            } catch (e) { }\n            log('trace', 'Uib:start', `VueJS is loaded. Version: ${this.vueVersion}`)()\n        } else {\n            log('trace', 'Uib:start', 'VueJS is not loaded.')()\n        }\n\n        // Check if DOMPurify library is loaded\n        if (window['DOMPurify']) {\n            this.set('purify', true)\n            log('trace', 'Uib:start', 'DOMPurify is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'DOMPurify is not loaded.')()\n        }\n        // Check if Markdown-IT library is loaded\n        if (window['markdownit']) {\n            this.set('markdown', true)\n            log('trace', 'Uib:start', 'Markdown-IT is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'Markdown-IT is not loaded.')()\n        }\n\n        // if (window['DOMPurify']) {\n        //     this.set('purify', true)\n        //     log('trace', 'Uib:start', 'DOMPurify is loaded.')\n        // } else {\n        //     log('trace', 'Uib:start', 'DOMPurify is not loaded.')\n        // }\n\n        // Set up msg listener for the optional showMsg\n        this.onChange('msg', (msg) => {\n            if (this.#isShowMsg === true) {\n                const eMsg = document.getElementById('uib_last_msg')\n                if (eMsg) eMsg.innerHTML = this.syntaxHighlight(msg)\n            }\n        })\n\n        this._dispatchCustomEvent('uibuilder:startComplete')\n    }\n\n    //#endregion -------- ------------ -------- //\n} // ==== End of Class Uib ====\n\n//#region --- Wrap up - get things started ---\n\n// Create an instance (we will only ever want one)\nconst uibuilder = new Uib()\n\n// Assign reference to the instance to the global `window` object\n// Only useful if loading via <script> tag - prefer loading via `import uibuilder from ...`\nif (!window['uibuilder']) {\n    window['uibuilder'] = uibuilder\n} else {\n    log('error', 'uibuilder.module.js', '`uibuilder` already assigned to window. Have you tried to load it more than once?')\n}\nif (!window['uib']) {\n    window['uib'] = uibuilder\n} else {\n    log('warn', 'uibuilder.module.js', '`uib` shortcut already assigned to window.')\n}\n\n// Assign `$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$`.\nif (!window['$']) {\n    /** @type {HTMLElement} */\n    window['$'] = window['uibuilder'].$ // document.querySelector.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` or `uib.$` instead.')\n}\n// Assign `$$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$$']) {\n    /** @type {HTMLElement} */\n    window['$$'] = window['uibuilder'].$$ // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` or `uib.$$` instead.')\n}\n\n// Assign `$ui` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$ui']) {\n    /** @type {HTMLElement} */\n    window['$ui'] = window['uibuilder'].$ui // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$ui`, it is already in use. Use `uibuilder.$ui` or `uib.$ui` instead.')\n}\n\n// Can import as `import uibuilder from ...` OR `import {uibuilder} from ...`\nexport { uibuilder }\nexport default uibuilder\n\n// Attempt to run start fn\nuibuilder.start()\n\n// Add the class as a new Custom Element to the window object\ncustomElements.define('uib-var', UibVar)\n\n//#endregion --- Wrap up ---\n\n// EOF\n", "const PACKET_TYPES = Object.create(null); // no Map = no polyfill\nPACKET_TYPES[\"open\"] = \"0\";\nPACKET_TYPES[\"close\"] = \"1\";\nPACKET_TYPES[\"ping\"] = \"2\";\nPACKET_TYPES[\"pong\"] = \"3\";\nPACKET_TYPES[\"message\"] = \"4\";\nPACKET_TYPES[\"upgrade\"] = \"5\";\nPACKET_TYPES[\"noop\"] = \"6\";\nconst PACKET_TYPES_REVERSE = Object.create(null);\nObject.keys(PACKET_TYPES).forEach(key => {\n    PACKET_TYPES_REVERSE[PACKET_TYPES[key]] = key;\n});\nconst ERROR_PACKET = { type: \"error\", data: \"parser error\" };\nexport { PACKET_TYPES, PACKET_TYPES_REVERSE, ERROR_PACKET };\n", "import { PACKET_TYPES } from \"./commons.js\";\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        Object.prototype.toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\n// ArrayBuffer.isView method is not defined in IE10\nconst isView = obj => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj && obj.buffer instanceof ArrayBuffer;\n};\nconst encodePacket = ({ type, data }, supportsBinary, callback) => {\n    if (withNativeBlob && data instanceof Blob) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(data, callback);\n        }\n    }\n    else if (withNativeArrayBuffer &&\n        (data instanceof ArrayBuffer || isView(data))) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(new Blob([data]), callback);\n        }\n    }\n    // plain string\n    return callback(PACKET_TYPES[type] + (data || \"\"));\n};\nconst encodeBlobAsBase64 = (data, callback) => {\n    const fileReader = new FileReader();\n    fileReader.onload = function () {\n        const content = fileReader.result.split(\",\")[1];\n        callback(\"b\" + (content || \"\"));\n    };\n    return fileReader.readAsDataURL(data);\n};\nfunction toArray(data) {\n    if (data instanceof Uint8Array) {\n        return data;\n    }\n    else if (data instanceof ArrayBuffer) {\n        return new Uint8Array(data);\n    }\n    else {\n        return new Uint8Array(data.buffer, data.byteOffset, data.byteLength);\n    }\n}\nlet TEXT_ENCODER;\nexport function encodePacketToBinary(packet, callback) {\n    if (withNativeBlob && packet.data instanceof Blob) {\n        return packet.data\n            .arrayBuffer()\n            .then(toArray)\n            .then(callback);\n    }\n    else if (withNativeArrayBuffer &&\n        (packet.data instanceof ArrayBuffer || isView(packet.data))) {\n        return callback(toArray(packet.data));\n    }\n    encodePacket(packet, false, encoded => {\n        if (!TEXT_ENCODER) {\n            TEXT_ENCODER = new TextEncoder();\n        }\n        callback(TEXT_ENCODER.encode(encoded));\n    });\n}\nexport { encodePacket };\n", "// imported from https://github.com/socketio/base64-arraybuffer\nconst chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';\n// Use a lookup table to find the index.\nconst lookup = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);\nfor (let i = 0; i < chars.length; i++) {\n    lookup[chars.charCodeAt(i)] = i;\n}\nexport const encode = (arraybuffer) => {\n    let bytes = new Uint8Array(arraybuffer), i, len = bytes.length, base64 = '';\n    for (i = 0; i < len; i += 3) {\n        base64 += chars[bytes[i] >> 2];\n        base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];\n        base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];\n        base64 += chars[bytes[i + 2] & 63];\n    }\n    if (len % 3 === 2) {\n        base64 = base64.substring(0, base64.length - 1) + '=';\n    }\n    else if (len % 3 === 1) {\n        base64 = base64.substring(0, base64.length - 2) + '==';\n    }\n    return base64;\n};\nexport const decode = (base64) => {\n    let bufferLength = base64.length * 0.75, len = base64.length, i, p = 0, encoded1, encoded2, encoded3, encoded4;\n    if (base64[base64.length - 1] === '=') {\n        bufferLength--;\n        if (base64[base64.length - 2] === '=') {\n            bufferLength--;\n        }\n    }\n    const arraybuffer = new ArrayBuffer(bufferLength), bytes = new Uint8Array(arraybuffer);\n    for (i = 0; i < len; i += 4) {\n        encoded1 = lookup[base64.charCodeAt(i)];\n        encoded2 = lookup[base64.charCodeAt(i + 1)];\n        encoded3 = lookup[base64.charCodeAt(i + 2)];\n        encoded4 = lookup[base64.charCodeAt(i + 3)];\n        bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n        bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n        bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n    }\n    return arraybuffer;\n};\n", "import { ERROR_PACKET, PACKET_TYPES_REVERSE } from \"./commons.js\";\nimport { decode } from \"./contrib/base64-arraybuffer.js\";\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nexport const decodePacket = (encodedPacket, binaryType) => {\n    if (typeof encodedPacket !== \"string\") {\n        return {\n            type: \"message\",\n            data: mapBinary(encodedPacket, binaryType)\n        };\n    }\n    const type = encodedPacket.charAt(0);\n    if (type === \"b\") {\n        return {\n            type: \"message\",\n            data: decodeBase64Packet(encodedPacket.substring(1), binaryType)\n        };\n    }\n    const packetType = PACKET_TYPES_REVERSE[type];\n    if (!packetType) {\n        return ERROR_PACKET;\n    }\n    return encodedPacket.length > 1\n        ? {\n            type: PACKET_TYPES_REVERSE[type],\n            data: encodedPacket.substring(1)\n        }\n        : {\n            type: PACKET_TYPES_REVERSE[type]\n        };\n};\nconst decodeBase64Packet = (data, binaryType) => {\n    if (withNativeArrayBuffer) {\n        const decoded = decode(data);\n        return mapBinary(decoded, binaryType);\n    }\n    else {\n        return { base64: true, data }; // fallback for old browsers\n    }\n};\nconst mapBinary = (data, binaryType) => {\n    switch (binaryType) {\n        case \"blob\":\n            if (data instanceof Blob) {\n                // from WebSocket + binaryType \"blob\"\n                return data;\n            }\n            else {\n                // from HTTP long-polling or WebTransport\n                return new Blob([data]);\n            }\n        case \"arraybuffer\":\n        default:\n            if (data instanceof ArrayBuffer) {\n                // from HTTP long-polling (base64) or WebSocket + binaryType \"arraybuffer\"\n                return data;\n            }\n            else {\n                // from WebTransport (Uint8Array)\n                return data.buffer;\n            }\n    }\n};\n", "import { encodePacket, encodePacketToBinary } from \"./encodePacket.js\";\nimport { decodePacket } from \"./decodePacket.js\";\nimport { ERROR_PACKET } from \"./commons.js\";\nconst SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text\nconst encodePayload = (packets, callback) => {\n    // some packets may be added to the array while encoding, so the initial length must be saved\n    const length = packets.length;\n    const encodedPackets = new Array(length);\n    let count = 0;\n    packets.forEach((packet, i) => {\n        // force base64 encoding for binary packets\n        encodePacket(packet, false, encodedPacket => {\n            encodedPackets[i] = encodedPacket;\n            if (++count === length) {\n                callback(encodedPackets.join(SEPARATOR));\n            }\n        });\n    });\n};\nconst decodePayload = (encodedPayload, binaryType) => {\n    const encodedPackets = encodedPayload.split(SEPARATOR);\n    const packets = [];\n    for (let i = 0; i < encodedPackets.length; i++) {\n        const decodedPacket = decodePacket(encodedPackets[i], binaryType);\n        packets.push(decodedPacket);\n        if (decodedPacket.type === \"error\") {\n            break;\n        }\n    }\n    return packets;\n};\nexport function createPacketEncoderStream() {\n    return new TransformStream({\n        transform(packet, controller) {\n            encodePacketToBinary(packet, encodedPacket => {\n                const payloadLength = encodedPacket.length;\n                let header;\n                // inspired by the WebSocket format: https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API/Writing_WebSocket_servers#decoding_payload_length\n                if (payloadLength < 126) {\n                    header = new Uint8Array(1);\n                    new DataView(header.buffer).setUint8(0, payloadLength);\n                }\n                else if (payloadLength < 65536) {\n                    header = new Uint8Array(3);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 126);\n                    view.setUint16(1, payloadLength);\n                }\n                else {\n                    header = new Uint8Array(9);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 127);\n                    view.setBigUint64(1, BigInt(payloadLength));\n                }\n                // first bit indicates whether the payload is plain text (0) or binary (1)\n                if (packet.data && typeof packet.data !== \"string\") {\n                    header[0] |= 0x80;\n                }\n                controller.enqueue(header);\n                controller.enqueue(encodedPacket);\n            });\n        }\n    });\n}\nlet TEXT_DECODER;\nfunction totalLength(chunks) {\n    return chunks.reduce((acc, chunk) => acc + chunk.length, 0);\n}\nfunction concatChunks(chunks, size) {\n    if (chunks[0].length === size) {\n        return chunks.shift();\n    }\n    const buffer = new Uint8Array(size);\n    let j = 0;\n    for (let i = 0; i < size; i++) {\n        buffer[i] = chunks[0][j++];\n        if (j === chunks[0].length) {\n            chunks.shift();\n            j = 0;\n        }\n    }\n    if (chunks.length && j < chunks[0].length) {\n        chunks[0] = chunks[0].slice(j);\n    }\n    return buffer;\n}\nexport function createPacketDecoderStream(maxPayload, binaryType) {\n    if (!TEXT_DECODER) {\n        TEXT_DECODER = new TextDecoder();\n    }\n    const chunks = [];\n    let state = 0 /* READ_HEADER */;\n    let expectedLength = -1;\n    let isBinary = false;\n    return new TransformStream({\n        transform(chunk, controller) {\n            chunks.push(chunk);\n            while (true) {\n                if (state === 0 /* READ_HEADER */) {\n                    if (totalLength(chunks) < 1) {\n                        break;\n                    }\n                    const header = concatChunks(chunks, 1);\n                    isBinary = (header[0] & 0x80) === 0x80;\n                    expectedLength = header[0] & 0x7f;\n                    if (expectedLength < 126) {\n                        state = 3 /* READ_PAYLOAD */;\n                    }\n                    else if (expectedLength === 126) {\n                        state = 1 /* READ_EXTENDED_LENGTH_16 */;\n                    }\n                    else {\n                        state = 2 /* READ_EXTENDED_LENGTH_64 */;\n                    }\n                }\n                else if (state === 1 /* READ_EXTENDED_LENGTH_16 */) {\n                    if (totalLength(chunks) < 2) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 2);\n                    expectedLength = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length).getUint16(0);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else if (state === 2 /* READ_EXTENDED_LENGTH_64 */) {\n                    if (totalLength(chunks) < 8) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 8);\n                    const view = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length);\n                    const n = view.getUint32(0);\n                    if (n > Math.pow(2, 53 - 32) - 1) {\n                        // the maximum safe integer in JavaScript is 2^53 - 1\n                        controller.enqueue(ERROR_PACKET);\n                        break;\n                    }\n                    expectedLength = n * Math.pow(2, 32) + view.getUint32(4);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else {\n                    if (totalLength(chunks) < expectedLength) {\n                        break;\n                    }\n                    const data = concatChunks(chunks, expectedLength);\n                    controller.enqueue(decodePacket(isBinary ? data : TEXT_DECODER.decode(data), binaryType));\n                    state = 0 /* READ_HEADER */;\n                }\n                if (expectedLength === 0 || expectedLength > maxPayload) {\n                    controller.enqueue(ERROR_PACKET);\n                    break;\n                }\n            }\n        }\n    });\n}\nexport const protocol = 4;\nexport { encodePacket, encodePayload, decodePacket, decodePayload };\n", "/**\n * Initialize a new `Emitter`.\n *\n * @api public\n */\n\nexport function Emitter(obj) {\n  if (obj) return mixin(obj);\n}\n\n/**\n * Mixin the emitter properties.\n *\n * @param {Object} obj\n * @return {Object}\n * @api private\n */\n\nfunction mixin(obj) {\n  for (var key in Emitter.prototype) {\n    obj[key] = Emitter.prototype[key];\n  }\n  return obj;\n}\n\n/**\n * Listen on the given `event` with `fn`.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.on =\nEmitter.prototype.addEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])\n    .push(fn);\n  return this;\n};\n\n/**\n * Adds an `event` listener that will be invoked a single\n * time then automatically removed.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.once = function(event, fn){\n  function on() {\n    this.off(event, on);\n    fn.apply(this, arguments);\n  }\n\n  on.fn = fn;\n  this.on(event, on);\n  return this;\n};\n\n/**\n * Remove the given callback for `event` or all\n * registered callbacks.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.off =\nEmitter.prototype.removeListener =\nEmitter.prototype.removeAllListeners =\nEmitter.prototype.removeEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n\n  // all\n  if (0 == arguments.length) {\n    this._callbacks = {};\n    return this;\n  }\n\n  // specific event\n  var callbacks = this._callbacks['$' + event];\n  if (!callbacks) return this;\n\n  // remove all handlers\n  if (1 == arguments.length) {\n    delete this._callbacks['$' + event];\n    return this;\n  }\n\n  // remove specific handler\n  var cb;\n  for (var i = 0; i < callbacks.length; i++) {\n    cb = callbacks[i];\n    if (cb === fn || cb.fn === fn) {\n      callbacks.splice(i, 1);\n      break;\n    }\n  }\n\n  // Remove event specific arrays for event types that no\n  // one is subscribed for to avoid memory leak.\n  if (callbacks.length === 0) {\n    delete this._callbacks['$' + event];\n  }\n\n  return this;\n};\n\n/**\n * Emit `event` with the given args.\n *\n * @param {String} event\n * @param {Mixed} ...\n * @return {Emitter}\n */\n\nEmitter.prototype.emit = function(event){\n  this._callbacks = this._callbacks || {};\n\n  var args = new Array(arguments.length - 1)\n    , callbacks = this._callbacks['$' + event];\n\n  for (var i = 1; i < arguments.length; i++) {\n    args[i - 1] = arguments[i];\n  }\n\n  if (callbacks) {\n    callbacks = callbacks.slice(0);\n    for (var i = 0, len = callbacks.length; i < len; ++i) {\n      callbacks[i].apply(this, args);\n    }\n  }\n\n  return this;\n};\n\n// alias used for reserved events (protected method)\nEmitter.prototype.emitReserved = Emitter.prototype.emit;\n\n/**\n * Return array of callbacks for `event`.\n *\n * @param {String} event\n * @return {Array}\n * @api public\n */\n\nEmitter.prototype.listeners = function(event){\n  this._callbacks = this._callbacks || {};\n  return this._callbacks['$' + event] || [];\n};\n\n/**\n * Check if this emitter has `event` handlers.\n *\n * @param {String} event\n * @return {Boolean}\n * @api public\n */\n\nEmitter.prototype.hasListeners = function(event){\n  return !! this.listeners(event).length;\n};\n", "export const globalThisShim = (() => {\n    if (typeof self !== \"undefined\") {\n        return self;\n    }\n    else if (typeof window !== \"undefined\") {\n        return window;\n    }\n    else {\n        return Function(\"return this\")();\n    }\n})();\n", "import { globalThisShim as globalThis } from \"./globalThis.js\";\nexport function pick(obj, ...attr) {\n    return attr.reduce((acc, k) => {\n        if (obj.hasOwnProperty(k)) {\n            acc[k] = obj[k];\n        }\n        return acc;\n    }, {});\n}\n// Keep a reference to the real timeout functions so they can be used when overridden\nconst NATIVE_SET_TIMEOUT = globalThis.setTimeout;\nconst NATIVE_CLEAR_TIMEOUT = globalThis.clearTimeout;\nexport function installTimerFunctions(obj, opts) {\n    if (opts.useNativeTimers) {\n        obj.setTimeoutFn = NATIVE_SET_TIMEOUT.bind(globalThis);\n        obj.clearTimeoutFn = NATIVE_CLEAR_TIMEOUT.bind(globalThis);\n    }\n    else {\n        obj.setTimeoutFn = globalThis.setTimeout.bind(globalThis);\n        obj.clearTimeoutFn = globalThis.clearTimeout.bind(globalThis);\n    }\n}\n// base64 encoded buffers are about 33% bigger (https://en.wikipedia.org/wiki/Base64)\nconst BASE64_OVERHEAD = 1.33;\n// we could also have used `new Blob([obj]).size`, but it isn't supported in IE9\nexport function byteLength(obj) {\n    if (typeof obj === \"string\") {\n        return utf8Length(obj);\n    }\n    // arraybuffer or blob\n    return Math.ceil((obj.byteLength || obj.size) * BASE64_OVERHEAD);\n}\nfunction utf8Length(str) {\n    let c = 0, length = 0;\n    for (let i = 0, l = str.length; i < l; i++) {\n        c = str.charCodeAt(i);\n        if (c < 0x80) {\n            length += 1;\n        }\n        else if (c < 0x800) {\n            length += 2;\n        }\n        else if (c < 0xd800 || c >= 0xe000) {\n            length += 3;\n        }\n        else {\n            i++;\n            length += 4;\n        }\n    }\n    return length;\n}\n", "// imported from https://github.com/galkn/querystring\n/**\n * Compiles a querystring\n * Returns string representation of the object\n *\n * @param {Object}\n * @api private\n */\nexport function encode(obj) {\n    let str = '';\n    for (let i in obj) {\n        if (obj.hasOwnProperty(i)) {\n            if (str.length)\n                str += '&';\n            str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);\n        }\n    }\n    return str;\n}\n/**\n * Parses a simple querystring into an object\n *\n * @param {String} qs\n * @api private\n */\nexport function decode(qs) {\n    let qry = {};\n    let pairs = qs.split('&');\n    for (let i = 0, l = pairs.length; i < l; i++) {\n        let pair = pairs[i].split('=');\n        qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);\n    }\n    return qry;\n}\n", "import { decodePacket } from \"engine.io-parser\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions } from \"./util.js\";\nimport { encode } from \"./contrib/parseqs.js\";\nexport class TransportError extends Error {\n    constructor(reason, description, context) {\n        super(reason);\n        this.description = description;\n        this.context = context;\n        this.type = \"TransportError\";\n    }\n}\nexport class Transport extends Emitter {\n    /**\n     * Transport abstract constructor.\n     *\n     * @param {Object} opts - options\n     * @protected\n     */\n    constructor(opts) {\n        super();\n        this.writable = false;\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.query = opts.query;\n        this.socket = opts.socket;\n    }\n    /**\n     * Emits an error.\n     *\n     * @param {String} reason\n     * @param description\n     * @param context - the error context\n     * @return {Transport} for chaining\n     * @protected\n     */\n    onError(reason, description, context) {\n        super.emitReserved(\"error\", new TransportError(reason, description, context));\n        return this;\n    }\n    /**\n     * Opens the transport.\n     */\n    open() {\n        this.readyState = \"opening\";\n        this.doOpen();\n        return this;\n    }\n    /**\n     * Closes the transport.\n     */\n    close() {\n        if (this.readyState === \"opening\" || this.readyState === \"open\") {\n            this.doClose();\n            this.onClose();\n        }\n        return this;\n    }\n    /**\n     * Sends multiple packets.\n     *\n     * @param {Array} packets\n     */\n    send(packets) {\n        if (this.readyState === \"open\") {\n            this.write(packets);\n        }\n        else {\n            // this might happen if the transport was silently closed in the beforeunload event handler\n        }\n    }\n    /**\n     * Called upon open\n     *\n     * @protected\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        this.writable = true;\n        super.emitReserved(\"open\");\n    }\n    /**\n     * Called with data.\n     *\n     * @param {String} data\n     * @protected\n     */\n    onData(data) {\n        const packet = decodePacket(data, this.socket.binaryType);\n        this.onPacket(packet);\n    }\n    /**\n     * Called with a decoded packet.\n     *\n     * @protected\n     */\n    onPacket(packet) {\n        super.emitReserved(\"packet\", packet);\n    }\n    /**\n     * Called upon close.\n     *\n     * @protected\n     */\n    onClose(details) {\n        this.readyState = \"closed\";\n        super.emitReserved(\"close\", details);\n    }\n    /**\n     * Pauses the transport, in order not to lose packets during an upgrade.\n     *\n     * @param onPause\n     */\n    pause(onPause) { }\n    createUri(schema, query = {}) {\n        return (schema +\n            \"://\" +\n            this._hostname() +\n            this._port() +\n            this.opts.path +\n            this._query(query));\n    }\n    _hostname() {\n        const hostname = this.opts.hostname;\n        return hostname.indexOf(\":\") === -1 ? hostname : \"[\" + hostname + \"]\";\n    }\n    _port() {\n        if (this.opts.port &&\n            ((this.opts.secure && Number(this.opts.port !== 443)) ||\n                (!this.opts.secure && Number(this.opts.port) !== 80))) {\n            return \":\" + this.opts.port;\n        }\n        else {\n            return \"\";\n        }\n    }\n    _query(query) {\n        const encodedQuery = encode(query);\n        return encodedQuery.length ? \"?\" + encodedQuery : \"\";\n    }\n}\n", "// imported from https://github.com/unshiftio/yeast\n'use strict';\nconst alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split(''), length = 64, map = {};\nlet seed = 0, i = 0, prev;\n/**\n * Return a string representing the specified number.\n *\n * @param {Number} num The number to convert.\n * @returns {String} The string representation of the number.\n * @api public\n */\nexport function encode(num) {\n    let encoded = '';\n    do {\n        encoded = alphabet[num % length] + encoded;\n        num = Math.floor(num / length);\n    } while (num > 0);\n    return encoded;\n}\n/**\n * Return the integer value specified by the given string.\n *\n * @param {String} str The string to convert.\n * @returns {Number} The integer value represented by the string.\n * @api public\n */\nexport function decode(str) {\n    let decoded = 0;\n    for (i = 0; i < str.length; i++) {\n        decoded = decoded * length + map[str.charAt(i)];\n    }\n    return decoded;\n}\n/**\n * Yeast: A tiny growing id generator.\n *\n * @returns {String} A unique id.\n * @api public\n */\nexport function yeast() {\n    const now = encode(+new Date());\n    if (now !== prev)\n        return seed = 0, prev = now;\n    return now + '.' + encode(seed++);\n}\n//\n// Map each character to its index.\n//\nfor (; i < length; i++)\n    map[alphabet[i]] = i;\n", "// imported from https://github.com/component/has-cors\nlet value = false;\ntry {\n    value = typeof XMLHttpRequest !== 'undefined' &&\n        'withCredentials' in new XMLHttpRequest();\n}\ncatch (err) {\n    // if XMLHttp support is disabled in IE then it will throw\n    // when trying to create\n}\nexport const hasCORS = value;\n", "// browser shim for xmlhttprequest module\nimport { hasCORS } from \"../contrib/has-cors.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nexport function XHR(opts) {\n    const xdomain = opts.xdomain;\n    // XMLHttpRequest can be disabled on IE\n    try {\n        if (\"undefined\" !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {\n            return new XMLHttpRequest();\n        }\n    }\n    catch (e) { }\n    if (!xdomain) {\n        try {\n            return new globalThis[[\"Active\"].concat(\"Object\").join(\"X\")](\"Microsoft.XMLHTTP\");\n        }\n        catch (e) { }\n    }\n}\nexport function createCookieJar() { }\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { encodePayload, decodePayload } from \"engine.io-parser\";\nimport { createCookieJar, XHR as XMLHttpRequest, } from \"./xmlhttprequest.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions, pick } from \"../util.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nfunction empty() { }\nconst hasXHR2 = (function () {\n    const xhr = new XMLHttpRequest({\n        xdomain: false,\n    });\n    return null != xhr.responseType;\n})();\nexport class Polling extends Transport {\n    /**\n     * XHR Polling constructor.\n     *\n     * @param {Object} opts\n     * @package\n     */\n    constructor(opts) {\n        super(opts);\n        this.polling = false;\n        if (typeof location !== \"undefined\") {\n            const isSSL = \"https:\" === location.protocol;\n            let port = location.port;\n            // some user agents have empty `location.port`\n            if (!port) {\n                port = isSSL ? \"443\" : \"80\";\n            }\n            this.xd =\n                (typeof location !== \"undefined\" &&\n                    opts.hostname !== location.hostname) ||\n                    port !== opts.port;\n        }\n        /**\n         * XHR supports binary\n         */\n        const forceBase64 = opts && opts.forceBase64;\n        this.supportsBinary = hasXHR2 && !forceBase64;\n        if (this.opts.withCredentials) {\n            this.cookieJar = createCookieJar();\n        }\n    }\n    get name() {\n        return \"polling\";\n    }\n    /**\n     * Opens the socket (triggers polling). We write a PING message to determine\n     * when the transport is open.\n     *\n     * @protected\n     */\n    doOpen() {\n        this.poll();\n    }\n    /**\n     * Pauses polling.\n     *\n     * @param {Function} onPause - callback upon buffers are flushed and transport is paused\n     * @package\n     */\n    pause(onPause) {\n        this.readyState = \"pausing\";\n        const pause = () => {\n            this.readyState = \"paused\";\n            onPause();\n        };\n        if (this.polling || !this.writable) {\n            let total = 0;\n            if (this.polling) {\n                total++;\n                this.once(\"pollComplete\", function () {\n                    --total || pause();\n                });\n            }\n            if (!this.writable) {\n                total++;\n                this.once(\"drain\", function () {\n                    --total || pause();\n                });\n            }\n        }\n        else {\n            pause();\n        }\n    }\n    /**\n     * Starts polling cycle.\n     *\n     * @private\n     */\n    poll() {\n        this.polling = true;\n        this.doPoll();\n        this.emitReserved(\"poll\");\n    }\n    /**\n     * Overloads onData to detect payloads.\n     *\n     * @protected\n     */\n    onData(data) {\n        const callback = (packet) => {\n            // if its the first message we consider the transport open\n            if (\"opening\" === this.readyState && packet.type === \"open\") {\n                this.onOpen();\n            }\n            // if its a close packet, we close the ongoing requests\n            if (\"close\" === packet.type) {\n                this.onClose({ description: \"transport closed by the server\" });\n                return false;\n            }\n            // otherwise bypass onData and handle the message\n            this.onPacket(packet);\n        };\n        // decode payload\n        decodePayload(data, this.socket.binaryType).forEach(callback);\n        // if an event did not trigger closing\n        if (\"closed\" !== this.readyState) {\n            // if we got data we're not polling\n            this.polling = false;\n            this.emitReserved(\"pollComplete\");\n            if (\"open\" === this.readyState) {\n                this.poll();\n            }\n            else {\n            }\n        }\n    }\n    /**\n     * For polling, send a close packet.\n     *\n     * @protected\n     */\n    doClose() {\n        const close = () => {\n            this.write([{ type: \"close\" }]);\n        };\n        if (\"open\" === this.readyState) {\n            close();\n        }\n        else {\n            // in case we're trying to close while\n            // handshaking is in progress (GH-164)\n            this.once(\"open\", close);\n        }\n    }\n    /**\n     * Writes a packets payload.\n     *\n     * @param {Array} packets - data packets\n     * @protected\n     */\n    write(packets) {\n        this.writable = false;\n        encodePayload(packets, (data) => {\n            this.doWrite(data, () => {\n                this.writable = true;\n                this.emitReserved(\"drain\");\n            });\n        });\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"https\" : \"http\";\n        const query = this.query || {};\n        // cache busting is forced\n        if (false !== this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        if (!this.supportsBinary && !query.sid) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Creates a request.\n     *\n     * @param {String} method\n     * @private\n     */\n    request(opts = {}) {\n        Object.assign(opts, { xd: this.xd, cookieJar: this.cookieJar }, this.opts);\n        return new Request(this.uri(), opts);\n    }\n    /**\n     * Sends data.\n     *\n     * @param {String} data to send.\n     * @param {Function} called upon flush.\n     * @private\n     */\n    doWrite(data, fn) {\n        const req = this.request({\n            method: \"POST\",\n            data: data,\n        });\n        req.on(\"success\", fn);\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr post error\", xhrStatus, context);\n        });\n    }\n    /**\n     * Starts a poll cycle.\n     *\n     * @private\n     */\n    doPoll() {\n        const req = this.request();\n        req.on(\"data\", this.onData.bind(this));\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr poll error\", xhrStatus, context);\n        });\n        this.pollXhr = req;\n    }\n}\nexport class Request extends Emitter {\n    /**\n     * Request constructor\n     *\n     * @param {Object} options\n     * @package\n     */\n    constructor(uri, opts) {\n        super();\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.method = opts.method || \"GET\";\n        this.uri = uri;\n        this.data = undefined !== opts.data ? opts.data : null;\n        this.create();\n    }\n    /**\n     * Creates the XHR object and sends the request.\n     *\n     * @private\n     */\n    create() {\n        var _a;\n        const opts = pick(this.opts, \"agent\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"autoUnref\");\n        opts.xdomain = !!this.opts.xd;\n        const xhr = (this.xhr = new XMLHttpRequest(opts));\n        try {\n            xhr.open(this.method, this.uri, true);\n            try {\n                if (this.opts.extraHeaders) {\n                    xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);\n                    for (let i in this.opts.extraHeaders) {\n                        if (this.opts.extraHeaders.hasOwnProperty(i)) {\n                            xhr.setRequestHeader(i, this.opts.extraHeaders[i]);\n                        }\n                    }\n                }\n            }\n            catch (e) { }\n            if (\"POST\" === this.method) {\n                try {\n                    xhr.setRequestHeader(\"Content-type\", \"text/plain;charset=UTF-8\");\n                }\n                catch (e) { }\n            }\n            try {\n                xhr.setRequestHeader(\"Accept\", \"*/*\");\n            }\n            catch (e) { }\n            (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.addCookies(xhr);\n            // ie6 check\n            if (\"withCredentials\" in xhr) {\n                xhr.withCredentials = this.opts.withCredentials;\n            }\n            if (this.opts.requestTimeout) {\n                xhr.timeout = this.opts.requestTimeout;\n            }\n            xhr.onreadystatechange = () => {\n                var _a;\n                if (xhr.readyState === 3) {\n                    (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.parseCookies(xhr);\n                }\n                if (4 !== xhr.readyState)\n                    return;\n                if (200 === xhr.status || 1223 === xhr.status) {\n                    this.onLoad();\n                }\n                else {\n                    // make sure the `error` event handler that's user-set\n                    // does not throw in the same tick and gets caught here\n                    this.setTimeoutFn(() => {\n                        this.onError(typeof xhr.status === \"number\" ? xhr.status : 0);\n                    }, 0);\n                }\n            };\n            xhr.send(this.data);\n        }\n        catch (e) {\n            // Need to defer since .create() is called directly from the constructor\n            // and thus the 'error' event can only be only bound *after* this exception\n            // occurs.  Therefore, also, we cannot throw here at all.\n            this.setTimeoutFn(() => {\n                this.onError(e);\n            }, 0);\n            return;\n        }\n        if (typeof document !== \"undefined\") {\n            this.index = Request.requestsCount++;\n            Request.requests[this.index] = this;\n        }\n    }\n    /**\n     * Called upon error.\n     *\n     * @private\n     */\n    onError(err) {\n        this.emitReserved(\"error\", err, this.xhr);\n        this.cleanup(true);\n    }\n    /**\n     * Cleans up house.\n     *\n     * @private\n     */\n    cleanup(fromError) {\n        if (\"undefined\" === typeof this.xhr || null === this.xhr) {\n            return;\n        }\n        this.xhr.onreadystatechange = empty;\n        if (fromError) {\n            try {\n                this.xhr.abort();\n            }\n            catch (e) { }\n        }\n        if (typeof document !== \"undefined\") {\n            delete Request.requests[this.index];\n        }\n        this.xhr = null;\n    }\n    /**\n     * Called upon load.\n     *\n     * @private\n     */\n    onLoad() {\n        const data = this.xhr.responseText;\n        if (data !== null) {\n            this.emitReserved(\"data\", data);\n            this.emitReserved(\"success\");\n            this.cleanup();\n        }\n    }\n    /**\n     * Aborts the request.\n     *\n     * @package\n     */\n    abort() {\n        this.cleanup();\n    }\n}\nRequest.requestsCount = 0;\nRequest.requests = {};\n/**\n * Aborts pending requests when unloading the window. This is needed to prevent\n * memory leaks (e.g. when using IE) and to ensure that no spurious error is\n * emitted.\n */\nif (typeof document !== \"undefined\") {\n    // @ts-ignore\n    if (typeof attachEvent === \"function\") {\n        // @ts-ignore\n        attachEvent(\"onunload\", unloadHandler);\n    }\n    else if (typeof addEventListener === \"function\") {\n        const terminationEvent = \"onpagehide\" in globalThis ? \"pagehide\" : \"unload\";\n        addEventListener(terminationEvent, unloadHandler, false);\n    }\n}\nfunction unloadHandler() {\n    for (let i in Request.requests) {\n        if (Request.requests.hasOwnProperty(i)) {\n            Request.requests[i].abort();\n        }\n    }\n}\n", "import { globalThisShim as globalThis } from \"../globalThis.js\";\nexport const nextTick = (() => {\n    const isPromiseAvailable = typeof Promise === \"function\" && typeof Promise.resolve === \"function\";\n    if (isPromiseAvailable) {\n        return (cb) => Promise.resolve().then(cb);\n    }\n    else {\n        return (cb, setTimeoutFn) => setTimeoutFn(cb, 0);\n    }\n})();\nexport const WebSocket = globalThis.WebSocket || globalThis.MozWebSocket;\nexport const usingBrowserWebSocket = true;\nexport const defaultBinaryType = \"arraybuffer\";\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { pick } from \"../util.js\";\nimport { nextTick, usingBrowserWebSocket, WebSocket, } from \"./websocket-constructor.js\";\nimport { encodePacket } from \"engine.io-parser\";\n// detect ReactNative environment\nconst isReactNative = typeof navigator !== \"undefined\" &&\n    typeof navigator.product === \"string\" &&\n    navigator.product.toLowerCase() === \"reactnative\";\nexport class WS extends Transport {\n    /**\n     * WebSocket transport constructor.\n     *\n     * @param {Object} opts - connection options\n     * @protected\n     */\n    constructor(opts) {\n        super(opts);\n        this.supportsBinary = !opts.forceBase64;\n    }\n    get name() {\n        return \"websocket\";\n    }\n    doOpen() {\n        if (!this.check()) {\n            // let probe timeout\n            return;\n        }\n        const uri = this.uri();\n        const protocols = this.opts.protocols;\n        // React Native only supports the 'headers' option, and will print a warning if anything else is passed\n        const opts = isReactNative\n            ? {}\n            : pick(this.opts, \"agent\", \"perMessageDeflate\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"localAddress\", \"protocolVersion\", \"origin\", \"maxPayload\", \"family\", \"checkServerIdentity\");\n        if (this.opts.extraHeaders) {\n            opts.headers = this.opts.extraHeaders;\n        }\n        try {\n            this.ws =\n                usingBrowserWebSocket && !isReactNative\n                    ? protocols\n                        ? new WebSocket(uri, protocols)\n                        : new WebSocket(uri)\n                    : new WebSocket(uri, protocols, opts);\n        }\n        catch (err) {\n            return this.emitReserved(\"error\", err);\n        }\n        this.ws.binaryType = this.socket.binaryType;\n        this.addEventListeners();\n    }\n    /**\n     * Adds event listeners to the socket\n     *\n     * @private\n     */\n    addEventListeners() {\n        this.ws.onopen = () => {\n            if (this.opts.autoUnref) {\n                this.ws._socket.unref();\n            }\n            this.onOpen();\n        };\n        this.ws.onclose = (closeEvent) => this.onClose({\n            description: \"websocket connection closed\",\n            context: closeEvent,\n        });\n        this.ws.onmessage = (ev) => this.onData(ev.data);\n        this.ws.onerror = (e) => this.onError(\"websocket error\", e);\n    }\n    write(packets) {\n        this.writable = false;\n        // encodePacket efficient as it uses WS framing\n        // no need for encodePayload\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            encodePacket(packet, this.supportsBinary, (data) => {\n                // always create a new object (GH-437)\n                const opts = {};\n                if (!usingBrowserWebSocket) {\n                    if (packet.options) {\n                        opts.compress = packet.options.compress;\n                    }\n                    if (this.opts.perMessageDeflate) {\n                        const len = \n                        // @ts-ignore\n                        \"string\" === typeof data ? Buffer.byteLength(data) : data.length;\n                        if (len < this.opts.perMessageDeflate.threshold) {\n                            opts.compress = false;\n                        }\n                    }\n                }\n                // Sometimes the websocket has already been closed but the browser didn't\n                // have a chance of informing us about it yet, in that case send will\n                // throw an error\n                try {\n                    if (usingBrowserWebSocket) {\n                        // TypeError is thrown when passing the second argument on Safari\n                        this.ws.send(data);\n                    }\n                    else {\n                        this.ws.send(data, opts);\n                    }\n                }\n                catch (e) {\n                }\n                if (lastPacket) {\n                    // fake drain\n                    // defer to next tick to allow Socket to clear writeBuffer\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        if (typeof this.ws !== \"undefined\") {\n            this.ws.close();\n            this.ws = null;\n        }\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"wss\" : \"ws\";\n        const query = this.query || {};\n        // append timestamp to URI\n        if (this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        // communicate binary support capabilities\n        if (!this.supportsBinary) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Feature detection for WebSocket.\n     *\n     * @return {Boolean} whether this transport is available.\n     * @private\n     */\n    check() {\n        return !!WebSocket;\n    }\n}\n", "import { Transport } from \"../transport.js\";\nimport { nextTick } from \"./websocket-constructor.js\";\nimport { createPacketDecoderStream, createPacketEncoderStream, } from \"engine.io-parser\";\nexport class WT extends Transport {\n    get name() {\n        return \"webtransport\";\n    }\n    doOpen() {\n        // @ts-ignore\n        if (typeof WebTransport !== \"function\") {\n            return;\n        }\n        // @ts-ignore\n        this.transport = new WebTransport(this.createUri(\"https\"), this.opts.transportOptions[this.name]);\n        this.transport.closed\n            .then(() => {\n            this.onClose();\n        })\n            .catch((err) => {\n            this.onError(\"webtransport error\", err);\n        });\n        // note: we could have used async/await, but that would require some additional polyfills\n        this.transport.ready.then(() => {\n            this.transport.createBidirectionalStream().then((stream) => {\n                const decoderStream = createPacketDecoderStream(Number.MAX_SAFE_INTEGER, this.socket.binaryType);\n                const reader = stream.readable.pipeThrough(decoderStream).getReader();\n                const encoderStream = createPacketEncoderStream();\n                encoderStream.readable.pipeTo(stream.writable);\n                this.writer = encoderStream.writable.getWriter();\n                const read = () => {\n                    reader\n                        .read()\n                        .then(({ done, value }) => {\n                        if (done) {\n                            return;\n                        }\n                        this.onPacket(value);\n                        read();\n                    })\n                        .catch((err) => {\n                    });\n                };\n                read();\n                const packet = { type: \"open\" };\n                if (this.query.sid) {\n                    packet.data = `{\"sid\":\"${this.query.sid}\"}`;\n                }\n                this.writer.write(packet).then(() => this.onOpen());\n            });\n        });\n    }\n    write(packets) {\n        this.writable = false;\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            this.writer.write(packet).then(() => {\n                if (lastPacket) {\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        var _a;\n        (_a = this.transport) === null || _a === void 0 ? void 0 : _a.close();\n    }\n}\n", "import { Polling } from \"./polling.js\";\nimport { WS } from \"./websocket.js\";\nimport { WT } from \"./webtransport.js\";\nexport const transports = {\n    websocket: WS,\n    webtransport: WT,\n    polling: Polling,\n};\n", "// imported from https://github.com/galkn/parseuri\n/**\n * Parses a URI\n *\n * Note: we could also have used the built-in URL object, but it isn't supported on all platforms.\n *\n * See:\n * - https://developer.mozilla.org/en-US/docs/Web/API/URL\n * - https://caniuse.com/url\n * - https://www.rfc-editor.org/rfc/rfc3986#appendix-B\n *\n * History of the parse() method:\n * - first commit: https://github.com/socketio/socket.io-client/commit/4ee1d5d94b3906a9c052b459f1a818b15f38f91c\n * - export into its own module: https://github.com/socketio/engine.io-client/commit/de2c561e4564efeb78f1bdb1ba39ef81b2822cb3\n * - reimport: https://github.com/socketio/engine.io-client/commit/df32277c3f6d622eec5ed09f493cae3f3391d242\n *\n * @author Steven Levithan <stevenlevithan.com> (MIT license)\n * @api private\n */\nconst re = /^(?:(?![^:@\\/?#]+:[^:@\\/]*@)(http|https|ws|wss):\\/\\/)?((?:(([^:@\\/?#]*)(?::([^:@\\/?#]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\\/?#]*)(?::(\\d*))?)(((\\/(?:[^?#](?![^?#\\/]*\\.[^?#\\/.]+(?:[?#]|$)))*\\/?)?([^?#\\/]*))(?:\\?([^#]*))?(?:#(.*))?)/;\nconst parts = [\n    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'\n];\nexport function parse(str) {\n    if (str.length > 2000) {\n        throw \"URI too long\";\n    }\n    const src = str, b = str.indexOf('['), e = str.indexOf(']');\n    if (b != -1 && e != -1) {\n        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);\n    }\n    let m = re.exec(str || ''), uri = {}, i = 14;\n    while (i--) {\n        uri[parts[i]] = m[i] || '';\n    }\n    if (b != -1 && e != -1) {\n        uri.source = src;\n        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');\n        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');\n        uri.ipv6uri = true;\n    }\n    uri.pathNames = pathNames(uri, uri['path']);\n    uri.queryKey = queryKey(uri, uri['query']);\n    return uri;\n}\nfunction pathNames(obj, path) {\n    const regx = /\\/{2,9}/g, names = path.replace(regx, \"/\").split(\"/\");\n    if (path.slice(0, 1) == '/' || path.length === 0) {\n        names.splice(0, 1);\n    }\n    if (path.slice(-1) == '/') {\n        names.splice(names.length - 1, 1);\n    }\n    return names;\n}\nfunction queryKey(uri, query) {\n    const data = {};\n    query.replace(/(?:^|&)([^&=]*)=?([^&]*)/g, function ($0, $1, $2) {\n        if ($1) {\n            data[$1] = $2;\n        }\n    });\n    return data;\n}\n", "import { transports } from \"./transports/index.js\";\nimport { installTimerFunctions, byteLength } from \"./util.js\";\nimport { decode } from \"./contrib/parseqs.js\";\nimport { parse } from \"./contrib/parseuri.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { protocol } from \"engine.io-parser\";\nimport { defaultBinaryType } from \"./transports/websocket-constructor.js\";\nexport class Socket extends Emitter {\n    /**\n     * Socket constructor.\n     *\n     * @param {String|Object} uri - uri or options\n     * @param {Object} opts - options\n     */\n    constructor(uri, opts = {}) {\n        super();\n        this.binaryType = defaultBinaryType;\n        this.writeBuffer = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = null;\n        }\n        if (uri) {\n            uri = parse(uri);\n            opts.hostname = uri.host;\n            opts.secure = uri.protocol === \"https\" || uri.protocol === \"wss\";\n            opts.port = uri.port;\n            if (uri.query)\n                opts.query = uri.query;\n        }\n        else if (opts.host) {\n            opts.hostname = parse(opts.host).host;\n        }\n        installTimerFunctions(this, opts);\n        this.secure =\n            null != opts.secure\n                ? opts.secure\n                : typeof location !== \"undefined\" && \"https:\" === location.protocol;\n        if (opts.hostname && !opts.port) {\n            // if no port is specified manually, use the protocol default\n            opts.port = this.secure ? \"443\" : \"80\";\n        }\n        this.hostname =\n            opts.hostname ||\n                (typeof location !== \"undefined\" ? location.hostname : \"localhost\");\n        this.port =\n            opts.port ||\n                (typeof location !== \"undefined\" && location.port\n                    ? location.port\n                    : this.secure\n                        ? \"443\"\n                        : \"80\");\n        this.transports = opts.transports || [\n            \"polling\",\n            \"websocket\",\n            \"webtransport\",\n        ];\n        this.writeBuffer = [];\n        this.prevBufferLen = 0;\n        this.opts = Object.assign({\n            path: \"/engine.io\",\n            agent: false,\n            withCredentials: false,\n            upgrade: true,\n            timestampParam: \"t\",\n            rememberUpgrade: false,\n            addTrailingSlash: true,\n            rejectUnauthorized: true,\n            perMessageDeflate: {\n                threshold: 1024,\n            },\n            transportOptions: {},\n            closeOnBeforeunload: false,\n        }, opts);\n        this.opts.path =\n            this.opts.path.replace(/\\/$/, \"\") +\n                (this.opts.addTrailingSlash ? \"/\" : \"\");\n        if (typeof this.opts.query === \"string\") {\n            this.opts.query = decode(this.opts.query);\n        }\n        // set on handshake\n        this.id = null;\n        this.upgrades = null;\n        this.pingInterval = null;\n        this.pingTimeout = null;\n        // set on heartbeat\n        this.pingTimeoutTimer = null;\n        if (typeof addEventListener === \"function\") {\n            if (this.opts.closeOnBeforeunload) {\n                // Firefox closes the connection when the \"beforeunload\" event is emitted but not Chrome. This event listener\n                // ensures every browser behaves the same (no \"disconnect\" event at the Socket.IO level when the page is\n                // closed/reloaded)\n                this.beforeunloadEventListener = () => {\n                    if (this.transport) {\n                        // silently close the transport\n                        this.transport.removeAllListeners();\n                        this.transport.close();\n                    }\n                };\n                addEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n            }\n            if (this.hostname !== \"localhost\") {\n                this.offlineEventListener = () => {\n                    this.onClose(\"transport close\", {\n                        description: \"network connection lost\",\n                    });\n                };\n                addEventListener(\"offline\", this.offlineEventListener, false);\n            }\n        }\n        this.open();\n    }\n    /**\n     * Creates transport of the given type.\n     *\n     * @param {String} name - transport name\n     * @return {Transport}\n     * @private\n     */\n    createTransport(name) {\n        const query = Object.assign({}, this.opts.query);\n        // append engine.io protocol identifier\n        query.EIO = protocol;\n        // transport name\n        query.transport = name;\n        // session id if we already have one\n        if (this.id)\n            query.sid = this.id;\n        const opts = Object.assign({}, this.opts, {\n            query,\n            socket: this,\n            hostname: this.hostname,\n            secure: this.secure,\n            port: this.port,\n        }, this.opts.transportOptions[name]);\n        return new transports[name](opts);\n    }\n    /**\n     * Initializes transport to use and starts probe.\n     *\n     * @private\n     */\n    open() {\n        let transport;\n        if (this.opts.rememberUpgrade &&\n            Socket.priorWebsocketSuccess &&\n            this.transports.indexOf(\"websocket\") !== -1) {\n            transport = \"websocket\";\n        }\n        else if (0 === this.transports.length) {\n            // Emit error on next tick so it can be listened to\n            this.setTimeoutFn(() => {\n                this.emitReserved(\"error\", \"No transports available\");\n            }, 0);\n            return;\n        }\n        else {\n            transport = this.transports[0];\n        }\n        this.readyState = \"opening\";\n        // Retry with the next transport if the transport is disabled (jsonp: false)\n        try {\n            transport = this.createTransport(transport);\n        }\n        catch (e) {\n            this.transports.shift();\n            this.open();\n            return;\n        }\n        transport.open();\n        this.setTransport(transport);\n    }\n    /**\n     * Sets the current transport. Disables the existing one (if any).\n     *\n     * @private\n     */\n    setTransport(transport) {\n        if (this.transport) {\n            this.transport.removeAllListeners();\n        }\n        // set up transport\n        this.transport = transport;\n        // set up transport listeners\n        transport\n            .on(\"drain\", this.onDrain.bind(this))\n            .on(\"packet\", this.onPacket.bind(this))\n            .on(\"error\", this.onError.bind(this))\n            .on(\"close\", (reason) => this.onClose(\"transport close\", reason));\n    }\n    /**\n     * Probes a transport.\n     *\n     * @param {String} name - transport name\n     * @private\n     */\n    probe(name) {\n        let transport = this.createTransport(name);\n        let failed = false;\n        Socket.priorWebsocketSuccess = false;\n        const onTransportOpen = () => {\n            if (failed)\n                return;\n            transport.send([{ type: \"ping\", data: \"probe\" }]);\n            transport.once(\"packet\", (msg) => {\n                if (failed)\n                    return;\n                if (\"pong\" === msg.type && \"probe\" === msg.data) {\n                    this.upgrading = true;\n                    this.emitReserved(\"upgrading\", transport);\n                    if (!transport)\n                        return;\n                    Socket.priorWebsocketSuccess = \"websocket\" === transport.name;\n                    this.transport.pause(() => {\n                        if (failed)\n                            return;\n                        if (\"closed\" === this.readyState)\n                            return;\n                        cleanup();\n                        this.setTransport(transport);\n                        transport.send([{ type: \"upgrade\" }]);\n                        this.emitReserved(\"upgrade\", transport);\n                        transport = null;\n                        this.upgrading = false;\n                        this.flush();\n                    });\n                }\n                else {\n                    const err = new Error(\"probe error\");\n                    // @ts-ignore\n                    err.transport = transport.name;\n                    this.emitReserved(\"upgradeError\", err);\n                }\n            });\n        };\n        function freezeTransport() {\n            if (failed)\n                return;\n            // Any callback called by transport should be ignored since now\n            failed = true;\n            cleanup();\n            transport.close();\n            transport = null;\n        }\n        // Handle any error that happens while probing\n        const onerror = (err) => {\n            const error = new Error(\"probe error: \" + err);\n            // @ts-ignore\n            error.transport = transport.name;\n            freezeTransport();\n            this.emitReserved(\"upgradeError\", error);\n        };\n        function onTransportClose() {\n            onerror(\"transport closed\");\n        }\n        // When the socket is closed while we're probing\n        function onclose() {\n            onerror(\"socket closed\");\n        }\n        // When the socket is upgraded while we're probing\n        function onupgrade(to) {\n            if (transport && to.name !== transport.name) {\n                freezeTransport();\n            }\n        }\n        // Remove all listeners on the transport and on self\n        const cleanup = () => {\n            transport.removeListener(\"open\", onTransportOpen);\n            transport.removeListener(\"error\", onerror);\n            transport.removeListener(\"close\", onTransportClose);\n            this.off(\"close\", onclose);\n            this.off(\"upgrading\", onupgrade);\n        };\n        transport.once(\"open\", onTransportOpen);\n        transport.once(\"error\", onerror);\n        transport.once(\"close\", onTransportClose);\n        this.once(\"close\", onclose);\n        this.once(\"upgrading\", onupgrade);\n        if (this.upgrades.indexOf(\"webtransport\") !== -1 &&\n            name !== \"webtransport\") {\n            // favor WebTransport\n            this.setTimeoutFn(() => {\n                if (!failed) {\n                    transport.open();\n                }\n            }, 200);\n        }\n        else {\n            transport.open();\n        }\n    }\n    /**\n     * Called when connection is deemed open.\n     *\n     * @private\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        Socket.priorWebsocketSuccess = \"websocket\" === this.transport.name;\n        this.emitReserved(\"open\");\n        this.flush();\n        // we check for `readyState` in case an `open`\n        // listener already closed the socket\n        if (\"open\" === this.readyState && this.opts.upgrade) {\n            let i = 0;\n            const l = this.upgrades.length;\n            for (; i < l; i++) {\n                this.probe(this.upgrades[i]);\n            }\n        }\n    }\n    /**\n     * Handles a packet.\n     *\n     * @private\n     */\n    onPacket(packet) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            this.emitReserved(\"packet\", packet);\n            // Socket is live - any packet counts\n            this.emitReserved(\"heartbeat\");\n            this.resetPingTimeout();\n            switch (packet.type) {\n                case \"open\":\n                    this.onHandshake(JSON.parse(packet.data));\n                    break;\n                case \"ping\":\n                    this.sendPacket(\"pong\");\n                    this.emitReserved(\"ping\");\n                    this.emitReserved(\"pong\");\n                    break;\n                case \"error\":\n                    const err = new Error(\"server error\");\n                    // @ts-ignore\n                    err.code = packet.data;\n                    this.onError(err);\n                    break;\n                case \"message\":\n                    this.emitReserved(\"data\", packet.data);\n                    this.emitReserved(\"message\", packet.data);\n                    break;\n            }\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon handshake completion.\n     *\n     * @param {Object} data - handshake obj\n     * @private\n     */\n    onHandshake(data) {\n        this.emitReserved(\"handshake\", data);\n        this.id = data.sid;\n        this.transport.query.sid = data.sid;\n        this.upgrades = this.filterUpgrades(data.upgrades);\n        this.pingInterval = data.pingInterval;\n        this.pingTimeout = data.pingTimeout;\n        this.maxPayload = data.maxPayload;\n        this.onOpen();\n        // In case open handler closes socket\n        if (\"closed\" === this.readyState)\n            return;\n        this.resetPingTimeout();\n    }\n    /**\n     * Sets and resets ping timeout timer based on server pings.\n     *\n     * @private\n     */\n    resetPingTimeout() {\n        this.clearTimeoutFn(this.pingTimeoutTimer);\n        this.pingTimeoutTimer = this.setTimeoutFn(() => {\n            this.onClose(\"ping timeout\");\n        }, this.pingInterval + this.pingTimeout);\n        if (this.opts.autoUnref) {\n            this.pingTimeoutTimer.unref();\n        }\n    }\n    /**\n     * Called on `drain` event\n     *\n     * @private\n     */\n    onDrain() {\n        this.writeBuffer.splice(0, this.prevBufferLen);\n        // setting prevBufferLen = 0 is very important\n        // for example, when upgrading, upgrade packet is sent over,\n        // and a nonzero prevBufferLen could cause problems on `drain`\n        this.prevBufferLen = 0;\n        if (0 === this.writeBuffer.length) {\n            this.emitReserved(\"drain\");\n        }\n        else {\n            this.flush();\n        }\n    }\n    /**\n     * Flush write buffers.\n     *\n     * @private\n     */\n    flush() {\n        if (\"closed\" !== this.readyState &&\n            this.transport.writable &&\n            !this.upgrading &&\n            this.writeBuffer.length) {\n            const packets = this.getWritablePackets();\n            this.transport.send(packets);\n            // keep track of current length of writeBuffer\n            // splice writeBuffer and callbackBuffer on `drain`\n            this.prevBufferLen = packets.length;\n            this.emitReserved(\"flush\");\n        }\n    }\n    /**\n     * Ensure the encoded size of the writeBuffer is below the maxPayload value sent by the server (only for HTTP\n     * long-polling)\n     *\n     * @private\n     */\n    getWritablePackets() {\n        const shouldCheckPayloadSize = this.maxPayload &&\n            this.transport.name === \"polling\" &&\n            this.writeBuffer.length > 1;\n        if (!shouldCheckPayloadSize) {\n            return this.writeBuffer;\n        }\n        let payloadSize = 1; // first packet type\n        for (let i = 0; i < this.writeBuffer.length; i++) {\n            const data = this.writeBuffer[i].data;\n            if (data) {\n                payloadSize += byteLength(data);\n            }\n            if (i > 0 && payloadSize > this.maxPayload) {\n                return this.writeBuffer.slice(0, i);\n            }\n            payloadSize += 2; // separator + packet type\n        }\n        return this.writeBuffer;\n    }\n    /**\n     * Sends a message.\n     *\n     * @param {String} msg - message.\n     * @param {Object} options.\n     * @param {Function} callback function.\n     * @return {Socket} for chaining.\n     */\n    write(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    send(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param {String} type: packet type.\n     * @param {String} data.\n     * @param {Object} options.\n     * @param {Function} fn - callback function.\n     * @private\n     */\n    sendPacket(type, data, options, fn) {\n        if (\"function\" === typeof data) {\n            fn = data;\n            data = undefined;\n        }\n        if (\"function\" === typeof options) {\n            fn = options;\n            options = null;\n        }\n        if (\"closing\" === this.readyState || \"closed\" === this.readyState) {\n            return;\n        }\n        options = options || {};\n        options.compress = false !== options.compress;\n        const packet = {\n            type: type,\n            data: data,\n            options: options,\n        };\n        this.emitReserved(\"packetCreate\", packet);\n        this.writeBuffer.push(packet);\n        if (fn)\n            this.once(\"flush\", fn);\n        this.flush();\n    }\n    /**\n     * Closes the connection.\n     */\n    close() {\n        const close = () => {\n            this.onClose(\"forced close\");\n            this.transport.close();\n        };\n        const cleanupAndClose = () => {\n            this.off(\"upgrade\", cleanupAndClose);\n            this.off(\"upgradeError\", cleanupAndClose);\n            close();\n        };\n        const waitForUpgrade = () => {\n            // wait for upgrade to finish since we can't send packets while pausing a transport\n            this.once(\"upgrade\", cleanupAndClose);\n            this.once(\"upgradeError\", cleanupAndClose);\n        };\n        if (\"opening\" === this.readyState || \"open\" === this.readyState) {\n            this.readyState = \"closing\";\n            if (this.writeBuffer.length) {\n                this.once(\"drain\", () => {\n                    if (this.upgrading) {\n                        waitForUpgrade();\n                    }\n                    else {\n                        close();\n                    }\n                });\n            }\n            else if (this.upgrading) {\n                waitForUpgrade();\n            }\n            else {\n                close();\n            }\n        }\n        return this;\n    }\n    /**\n     * Called upon transport error\n     *\n     * @private\n     */\n    onError(err) {\n        Socket.priorWebsocketSuccess = false;\n        this.emitReserved(\"error\", err);\n        this.onClose(\"transport error\", err);\n    }\n    /**\n     * Called upon transport close.\n     *\n     * @private\n     */\n    onClose(reason, description) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            // clear timers\n            this.clearTimeoutFn(this.pingTimeoutTimer);\n            // stop event from firing again for transport\n            this.transport.removeAllListeners(\"close\");\n            // ensure transport won't stay open\n            this.transport.close();\n            // ignore further transport communication\n            this.transport.removeAllListeners();\n            if (typeof removeEventListener === \"function\") {\n                removeEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n                removeEventListener(\"offline\", this.offlineEventListener, false);\n            }\n            // set ready state\n            this.readyState = \"closed\";\n            // clear session id\n            this.id = null;\n            // emit close event\n            this.emitReserved(\"close\", reason, description);\n            // clean buffers after, so users can still\n            // grab the buffers on `close` event\n            this.writeBuffer = [];\n            this.prevBufferLen = 0;\n        }\n    }\n    /**\n     * Filters upgrades, returning only those matching client transports.\n     *\n     * @param {Array} upgrades - server upgrades\n     * @private\n     */\n    filterUpgrades(upgrades) {\n        const filteredUpgrades = [];\n        let i = 0;\n        const j = upgrades.length;\n        for (; i < j; i++) {\n            if (~this.transports.indexOf(upgrades[i]))\n                filteredUpgrades.push(upgrades[i]);\n        }\n        return filteredUpgrades;\n    }\n}\nSocket.protocol = protocol;\n", "import { Socket } from \"./socket.js\";\nexport { Socket };\nexport const protocol = Socket.protocol;\nexport { Transport, TransportError } from \"./transport.js\";\nexport { transports } from \"./transports/index.js\";\nexport { installTimerFunctions } from \"./util.js\";\nexport { parse } from \"./contrib/parseuri.js\";\nexport { nextTick } from \"./transports/websocket-constructor.js\";\n", "import { parse } from \"engine.io-client\";\n/**\n * URL parser.\n *\n * @param uri - url\n * @param path - the request path of the connection\n * @param loc - An object meant to mimic window.location.\n *        Defaults to window.location.\n * @public\n */\nexport function url(uri, path = \"\", loc) {\n    let obj = uri;\n    // default to window.location\n    loc = loc || (typeof location !== \"undefined\" && location);\n    if (null == uri)\n        uri = loc.protocol + \"//\" + loc.host;\n    // relative path support\n    if (typeof uri === \"string\") {\n        if (\"/\" === uri.charAt(0)) {\n            if (\"/\" === uri.charAt(1)) {\n                uri = loc.protocol + uri;\n            }\n            else {\n                uri = loc.host + uri;\n            }\n        }\n        if (!/^(https?|wss?):\\/\\//.test(uri)) {\n            if (\"undefined\" !== typeof loc) {\n                uri = loc.protocol + \"//\" + uri;\n            }\n            else {\n                uri = \"https://\" + uri;\n            }\n        }\n        // parse\n        obj = parse(uri);\n    }\n    // make sure we treat `localhost:80` and `localhost` equally\n    if (!obj.port) {\n        if (/^(http|ws)$/.test(obj.protocol)) {\n            obj.port = \"80\";\n        }\n        else if (/^(http|ws)s$/.test(obj.protocol)) {\n            obj.port = \"443\";\n        }\n    }\n    obj.path = obj.path || \"/\";\n    const ipv6 = obj.host.indexOf(\":\") !== -1;\n    const host = ipv6 ? \"[\" + obj.host + \"]\" : obj.host;\n    // define unique id\n    obj.id = obj.protocol + \"://\" + host + \":\" + obj.port + path;\n    // define href\n    obj.href =\n        obj.protocol +\n            \"://\" +\n            host +\n            (loc && loc.port === obj.port ? \"\" : \":\" + obj.port);\n    return obj;\n}\n", "import { Emitter } from \"@socket.io/component-emitter\";\nimport { deconstructPacket, reconstructPacket } from \"./binary.js\";\nimport { isBinary, hasBinary } from \"./is-binary.js\";\n/**\n * These strings must not be used as event names, as they have a special meaning.\n */\nconst RESERVED_EVENTS = [\n    \"connect\",\n    \"connect_error\",\n    \"disconnect\",\n    \"disconnecting\",\n    \"newListener\",\n    \"removeListener\", // used by the Node.js EventEmitter\n];\n/**\n * Protocol version.\n *\n * @public\n */\nexport const protocol = 5;\nexport var PacketType;\n(function (PacketType) {\n    PacketType[PacketType[\"CONNECT\"] = 0] = \"CONNECT\";\n    PacketType[PacketType[\"DISCONNECT\"] = 1] = \"DISCONNECT\";\n    PacketType[PacketType[\"EVENT\"] = 2] = \"EVENT\";\n    PacketType[PacketType[\"ACK\"] = 3] = \"ACK\";\n    PacketType[PacketType[\"CONNECT_ERROR\"] = 4] = \"CONNECT_ERROR\";\n    PacketType[PacketType[\"BINARY_EVENT\"] = 5] = \"BINARY_EVENT\";\n    PacketType[PacketType[\"BINARY_ACK\"] = 6] = \"BINARY_ACK\";\n})(PacketType || (PacketType = {}));\n/**\n * A socket.io Encoder instance\n */\nexport class Encoder {\n    /**\n     * Encoder constructor\n     *\n     * @param {function} replacer - custom replacer to pass down to JSON.parse\n     */\n    constructor(replacer) {\n        this.replacer = replacer;\n    }\n    /**\n     * Encode a packet as a single string if non-binary, or as a\n     * buffer sequence, depending on packet type.\n     *\n     * @param {Object} obj - packet object\n     */\n    encode(obj) {\n        if (obj.type === PacketType.EVENT || obj.type === PacketType.ACK) {\n            if (hasBinary(obj)) {\n                return this.encodeAsBinary({\n                    type: obj.type === PacketType.EVENT\n                        ? PacketType.BINARY_EVENT\n                        : PacketType.BINARY_ACK,\n                    nsp: obj.nsp,\n                    data: obj.data,\n                    id: obj.id,\n                });\n            }\n        }\n        return [this.encodeAsString(obj)];\n    }\n    /**\n     * Encode packet as string.\n     */\n    encodeAsString(obj) {\n        // first is type\n        let str = \"\" + obj.type;\n        // attachments if we have them\n        if (obj.type === PacketType.BINARY_EVENT ||\n            obj.type === PacketType.BINARY_ACK) {\n            str += obj.attachments + \"-\";\n        }\n        // if we have a namespace other than `/`\n        // we append it followed by a comma `,`\n        if (obj.nsp && \"/\" !== obj.nsp) {\n            str += obj.nsp + \",\";\n        }\n        // immediately followed by the id\n        if (null != obj.id) {\n            str += obj.id;\n        }\n        // json data\n        if (null != obj.data) {\n            str += JSON.stringify(obj.data, this.replacer);\n        }\n        return str;\n    }\n    /**\n     * Encode packet as 'buffer sequence' by removing blobs, and\n     * deconstructing packet into object with placeholders and\n     * a list of buffers.\n     */\n    encodeAsBinary(obj) {\n        const deconstruction = deconstructPacket(obj);\n        const pack = this.encodeAsString(deconstruction.packet);\n        const buffers = deconstruction.buffers;\n        buffers.unshift(pack); // add packet info to beginning of data list\n        return buffers; // write all the buffers\n    }\n}\n// see https://stackoverflow.com/questions/8511281/check-if-a-value-is-an-object-in-javascript\nfunction isObject(value) {\n    return Object.prototype.toString.call(value) === \"[object Object]\";\n}\n/**\n * A socket.io Decoder instance\n *\n * @return {Object} decoder\n */\nexport class Decoder extends Emitter {\n    /**\n     * Decoder constructor\n     *\n     * @param {function} reviver - custom reviver to pass down to JSON.stringify\n     */\n    constructor(reviver) {\n        super();\n        this.reviver = reviver;\n    }\n    /**\n     * Decodes an encoded packet string into packet JSON.\n     *\n     * @param {String} obj - encoded packet\n     */\n    add(obj) {\n        let packet;\n        if (typeof obj === \"string\") {\n            if (this.reconstructor) {\n                throw new Error(\"got plaintext data when reconstructing a packet\");\n            }\n            packet = this.decodeString(obj);\n            const isBinaryEvent = packet.type === PacketType.BINARY_EVENT;\n            if (isBinaryEvent || packet.type === PacketType.BINARY_ACK) {\n                packet.type = isBinaryEvent ? PacketType.EVENT : PacketType.ACK;\n                // binary packet's json\n                this.reconstructor = new BinaryReconstructor(packet);\n                // no attachments, labeled binary but no binary data to follow\n                if (packet.attachments === 0) {\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n            else {\n                // non-binary full packet\n                super.emitReserved(\"decoded\", packet);\n            }\n        }\n        else if (isBinary(obj) || obj.base64) {\n            // raw binary data\n            if (!this.reconstructor) {\n                throw new Error(\"got binary data when not reconstructing a packet\");\n            }\n            else {\n                packet = this.reconstructor.takeBinaryData(obj);\n                if (packet) {\n                    // received final buffer\n                    this.reconstructor = null;\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n        }\n        else {\n            throw new Error(\"Unknown type: \" + obj);\n        }\n    }\n    /**\n     * Decode a packet String (JSON data)\n     *\n     * @param {String} str\n     * @return {Object} packet\n     */\n    decodeString(str) {\n        let i = 0;\n        // look up type\n        const p = {\n            type: Number(str.charAt(0)),\n        };\n        if (PacketType[p.type] === undefined) {\n            throw new Error(\"unknown packet type \" + p.type);\n        }\n        // look up attachments if type binary\n        if (p.type === PacketType.BINARY_EVENT ||\n            p.type === PacketType.BINARY_ACK) {\n            const start = i + 1;\n            while (str.charAt(++i) !== \"-\" && i != str.length) { }\n            const buf = str.substring(start, i);\n            if (buf != Number(buf) || str.charAt(i) !== \"-\") {\n                throw new Error(\"Illegal attachments\");\n            }\n            p.attachments = Number(buf);\n        }\n        // look up namespace (if any)\n        if (\"/\" === str.charAt(i + 1)) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (\",\" === c)\n                    break;\n                if (i === str.length)\n                    break;\n            }\n            p.nsp = str.substring(start, i);\n        }\n        else {\n            p.nsp = \"/\";\n        }\n        // look up id\n        const next = str.charAt(i + 1);\n        if (\"\" !== next && Number(next) == next) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (null == c || Number(c) != c) {\n                    --i;\n                    break;\n                }\n                if (i === str.length)\n                    break;\n            }\n            p.id = Number(str.substring(start, i + 1));\n        }\n        // look up json data\n        if (str.charAt(++i)) {\n            const payload = this.tryParse(str.substr(i));\n            if (Decoder.isPayloadValid(p.type, payload)) {\n                p.data = payload;\n            }\n            else {\n                throw new Error(\"invalid payload\");\n            }\n        }\n        return p;\n    }\n    tryParse(str) {\n        try {\n            return JSON.parse(str, this.reviver);\n        }\n        catch (e) {\n            return false;\n        }\n    }\n    static isPayloadValid(type, payload) {\n        switch (type) {\n            case PacketType.CONNECT:\n                return isObject(payload);\n            case PacketType.DISCONNECT:\n                return payload === undefined;\n            case PacketType.CONNECT_ERROR:\n                return typeof payload === \"string\" || isObject(payload);\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                return (Array.isArray(payload) &&\n                    (typeof payload[0] === \"number\" ||\n                        (typeof payload[0] === \"string\" &&\n                            RESERVED_EVENTS.indexOf(payload[0]) === -1)));\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                return Array.isArray(payload);\n        }\n    }\n    /**\n     * Deallocates a parser's resources\n     */\n    destroy() {\n        if (this.reconstructor) {\n            this.reconstructor.finishedReconstruction();\n            this.reconstructor = null;\n        }\n    }\n}\n/**\n * A manager of a binary event's 'buffer sequence'. Should\n * be constructed whenever a packet of type BINARY_EVENT is\n * decoded.\n *\n * @param {Object} packet\n * @return {BinaryReconstructor} initialized reconstructor\n */\nclass BinaryReconstructor {\n    constructor(packet) {\n        this.packet = packet;\n        this.buffers = [];\n        this.reconPack = packet;\n    }\n    /**\n     * Method to be called when binary data received from connection\n     * after a BINARY_EVENT packet.\n     *\n     * @param {Buffer | ArrayBuffer} binData - the raw binary data received\n     * @return {null | Object} returns null if more binary data is expected or\n     *   a reconstructed packet object if all buffers have been received.\n     */\n    takeBinaryData(binData) {\n        this.buffers.push(binData);\n        if (this.buffers.length === this.reconPack.attachments) {\n            // done with buffer list\n            const packet = reconstructPacket(this.reconPack, this.buffers);\n            this.finishedReconstruction();\n            return packet;\n        }\n        return null;\n    }\n    /**\n     * Cleans up binary packet reconstruction variables.\n     */\n    finishedReconstruction() {\n        this.reconPack = null;\n        this.buffers = [];\n    }\n}\n", "const withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nconst isView = (obj) => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj.buffer instanceof ArrayBuffer;\n};\nconst toString = Object.prototype.toString;\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeFile = typeof File === \"function\" ||\n    (typeof File !== \"undefined\" &&\n        toString.call(File) === \"[object FileConstructor]\");\n/**\n * Returns true if obj is a Buffer, an ArrayBuffer, a Blob or a File.\n *\n * @private\n */\nexport function isBinary(obj) {\n    return ((withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj))) ||\n        (withNativeBlob && obj instanceof Blob) ||\n        (withNativeFile && obj instanceof File));\n}\nexport function hasBinary(obj, toJSON) {\n    if (!obj || typeof obj !== \"object\") {\n        return false;\n    }\n    if (Array.isArray(obj)) {\n        for (let i = 0, l = obj.length; i < l; i++) {\n            if (hasBinary(obj[i])) {\n                return true;\n            }\n        }\n        return false;\n    }\n    if (isBinary(obj)) {\n        return true;\n    }\n    if (obj.toJSON &&\n        typeof obj.toJSON === \"function\" &&\n        arguments.length === 1) {\n        return hasBinary(obj.toJSON(), true);\n    }\n    for (const key in obj) {\n        if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {\n            return true;\n        }\n    }\n    return false;\n}\n", "import { isBinary } from \"./is-binary.js\";\n/**\n * Replaces every Buffer | ArrayBuffer | Blob | File in packet with a numbered placeholder.\n *\n * @param {Object} packet - socket.io event packet\n * @return {Object} with deconstructed packet and list of buffers\n * @public\n */\nexport function deconstructPacket(packet) {\n    const buffers = [];\n    const packetData = packet.data;\n    const pack = packet;\n    pack.data = _deconstructPacket(packetData, buffers);\n    pack.attachments = buffers.length; // number of binary 'attachments'\n    return { packet: pack, buffers: buffers };\n}\nfunction _deconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (isBinary(data)) {\n        const placeholder = { _placeholder: true, num: buffers.length };\n        buffers.push(data);\n        return placeholder;\n    }\n    else if (Array.isArray(data)) {\n        const newData = new Array(data.length);\n        for (let i = 0; i < data.length; i++) {\n            newData[i] = _deconstructPacket(data[i], buffers);\n        }\n        return newData;\n    }\n    else if (typeof data === \"object\" && !(data instanceof Date)) {\n        const newData = {};\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                newData[key] = _deconstructPacket(data[key], buffers);\n            }\n        }\n        return newData;\n    }\n    return data;\n}\n/**\n * Reconstructs a binary packet from its placeholder packet and buffers\n *\n * @param {Object} packet - event packet with placeholders\n * @param {Array} buffers - binary buffers to put in placeholder positions\n * @return {Object} reconstructed packet\n * @public\n */\nexport function reconstructPacket(packet, buffers) {\n    packet.data = _reconstructPacket(packet.data, buffers);\n    delete packet.attachments; // no longer useful\n    return packet;\n}\nfunction _reconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (data && data._placeholder === true) {\n        const isIndexValid = typeof data.num === \"number\" &&\n            data.num >= 0 &&\n            data.num < buffers.length;\n        if (isIndexValid) {\n            return buffers[data.num]; // appropriate buffer (should be natural order anyway)\n        }\n        else {\n            throw new Error(\"illegal attachments\");\n        }\n    }\n    else if (Array.isArray(data)) {\n        for (let i = 0; i < data.length; i++) {\n            data[i] = _reconstructPacket(data[i], buffers);\n        }\n    }\n    else if (typeof data === \"object\") {\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                data[key] = _reconstructPacket(data[key], buffers);\n            }\n        }\n    }\n    return data;\n}\n", "export function on(obj, ev, fn) {\n    obj.on(ev, fn);\n    return function subDestroy() {\n        obj.off(ev, fn);\n    };\n}\n", "import { PacketType } from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\n/**\n * Internal events.\n * These events can't be emitted by the user.\n */\nconst RESERVED_EVENTS = Object.freeze({\n    connect: 1,\n    connect_error: 1,\n    disconnect: 1,\n    disconnecting: 1,\n    // EventEmitter reserved events: https://nodejs.org/api/events.html#events_event_newlistener\n    newListener: 1,\n    removeListener: 1,\n});\n/**\n * A Socket is the fundamental class for interacting with the server.\n *\n * A Socket belongs to a certain Namespace (by default /) and uses an underlying {@link Manager} to communicate.\n *\n * @example\n * const socket = io();\n *\n * socket.on(\"connect\", () => {\n *   console.log(\"connected\");\n * });\n *\n * // send an event to the server\n * socket.emit(\"foo\", \"bar\");\n *\n * socket.on(\"foobar\", () => {\n *   // an event was received from the server\n * });\n *\n * // upon disconnection\n * socket.on(\"disconnect\", (reason) => {\n *   console.log(`disconnected due to ${reason}`);\n * });\n */\nexport class Socket extends Emitter {\n    /**\n     * `Socket` constructor.\n     */\n    constructor(io, nsp, opts) {\n        super();\n        /**\n         * Whether the socket is currently connected to the server.\n         *\n         * @example\n         * const socket = io();\n         *\n         * socket.on(\"connect\", () => {\n         *   console.log(socket.connected); // true\n         * });\n         *\n         * socket.on(\"disconnect\", () => {\n         *   console.log(socket.connected); // false\n         * });\n         */\n        this.connected = false;\n        /**\n         * Whether the connection state was recovered after a temporary disconnection. In that case, any missed packets will\n         * be transmitted by the server.\n         */\n        this.recovered = false;\n        /**\n         * Buffer for packets received before the CONNECT packet\n         */\n        this.receiveBuffer = [];\n        /**\n         * Buffer for packets that will be sent once the socket is connected\n         */\n        this.sendBuffer = [];\n        /**\n         * The queue of packets to be sent with retry in case of failure.\n         *\n         * Packets are sent one by one, each waiting for the server acknowledgement, in order to guarantee the delivery order.\n         * @private\n         */\n        this._queue = [];\n        /**\n         * A sequence to generate the ID of the {@link QueuedPacket}.\n         * @private\n         */\n        this._queueSeq = 0;\n        this.ids = 0;\n        this.acks = {};\n        this.flags = {};\n        this.io = io;\n        this.nsp = nsp;\n        if (opts && opts.auth) {\n            this.auth = opts.auth;\n        }\n        this._opts = Object.assign({}, opts);\n        if (this.io._autoConnect)\n            this.open();\n    }\n    /**\n     * Whether the socket is currently disconnected\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"connect\", () => {\n     *   console.log(socket.disconnected); // false\n     * });\n     *\n     * socket.on(\"disconnect\", () => {\n     *   console.log(socket.disconnected); // true\n     * });\n     */\n    get disconnected() {\n        return !this.connected;\n    }\n    /**\n     * Subscribe to open, close and packet events\n     *\n     * @private\n     */\n    subEvents() {\n        if (this.subs)\n            return;\n        const io = this.io;\n        this.subs = [\n            on(io, \"open\", this.onopen.bind(this)),\n            on(io, \"packet\", this.onpacket.bind(this)),\n            on(io, \"error\", this.onerror.bind(this)),\n            on(io, \"close\", this.onclose.bind(this)),\n        ];\n    }\n    /**\n     * Whether the Socket will try to reconnect when its Manager connects or reconnects.\n     *\n     * @example\n     * const socket = io();\n     *\n     * console.log(socket.active); // true\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   if (reason === \"io server disconnect\") {\n     *     // the disconnection was initiated by the server, you need to manually reconnect\n     *     console.log(socket.active); // false\n     *   }\n     *   // else the socket will automatically try to reconnect\n     *   console.log(socket.active); // true\n     * });\n     */\n    get active() {\n        return !!this.subs;\n    }\n    /**\n     * \"Opens\" the socket.\n     *\n     * @example\n     * const socket = io({\n     *   autoConnect: false\n     * });\n     *\n     * socket.connect();\n     */\n    connect() {\n        if (this.connected)\n            return this;\n        this.subEvents();\n        if (!this.io[\"_reconnecting\"])\n            this.io.open(); // ensure open\n        if (\"open\" === this.io._readyState)\n            this.onopen();\n        return this;\n    }\n    /**\n     * Alias for {@link connect()}.\n     */\n    open() {\n        return this.connect();\n    }\n    /**\n     * Sends a `message` event.\n     *\n     * This method mimics the WebSocket.send() method.\n     *\n     * @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send\n     *\n     * @example\n     * socket.send(\"hello\");\n     *\n     * // this is equivalent to\n     * socket.emit(\"message\", \"hello\");\n     *\n     * @return self\n     */\n    send(...args) {\n        args.unshift(\"message\");\n        this.emit.apply(this, args);\n        return this;\n    }\n    /**\n     * Override `emit`.\n     * If the event is in `events`, it's emitted normally.\n     *\n     * @example\n     * socket.emit(\"hello\", \"world\");\n     *\n     * // all serializable datastructures are supported (no need to call JSON.stringify)\n     * socket.emit(\"hello\", 1, \"2\", { 3: [\"4\"], 5: Uint8Array.from([6]) });\n     *\n     * // with an acknowledgement from the server\n     * socket.emit(\"hello\", \"world\", (val) => {\n     *   // ...\n     * });\n     *\n     * @return self\n     */\n    emit(ev, ...args) {\n        if (RESERVED_EVENTS.hasOwnProperty(ev)) {\n            throw new Error('\"' + ev.toString() + '\" is a reserved event name');\n        }\n        args.unshift(ev);\n        if (this._opts.retries && !this.flags.fromQueue && !this.flags.volatile) {\n            this._addToQueue(args);\n            return this;\n        }\n        const packet = {\n            type: PacketType.EVENT,\n            data: args,\n        };\n        packet.options = {};\n        packet.options.compress = this.flags.compress !== false;\n        // event ack callback\n        if (\"function\" === typeof args[args.length - 1]) {\n            const id = this.ids++;\n            const ack = args.pop();\n            this._registerAckCallback(id, ack);\n            packet.id = id;\n        }\n        const isTransportWritable = this.io.engine &&\n            this.io.engine.transport &&\n            this.io.engine.transport.writable;\n        const discardPacket = this.flags.volatile && (!isTransportWritable || !this.connected);\n        if (discardPacket) {\n        }\n        else if (this.connected) {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        }\n        else {\n            this.sendBuffer.push(packet);\n        }\n        this.flags = {};\n        return this;\n    }\n    /**\n     * @private\n     */\n    _registerAckCallback(id, ack) {\n        var _a;\n        const timeout = (_a = this.flags.timeout) !== null && _a !== void 0 ? _a : this._opts.ackTimeout;\n        if (timeout === undefined) {\n            this.acks[id] = ack;\n            return;\n        }\n        // @ts-ignore\n        const timer = this.io.setTimeoutFn(() => {\n            delete this.acks[id];\n            for (let i = 0; i < this.sendBuffer.length; i++) {\n                if (this.sendBuffer[i].id === id) {\n                    this.sendBuffer.splice(i, 1);\n                }\n            }\n            ack.call(this, new Error(\"operation has timed out\"));\n        }, timeout);\n        this.acks[id] = (...args) => {\n            // @ts-ignore\n            this.io.clearTimeoutFn(timer);\n            ack.apply(this, [null, ...args]);\n        };\n    }\n    /**\n     * Emits an event and waits for an acknowledgement\n     *\n     * @example\n     * // without timeout\n     * const response = await socket.emitWithAck(\"hello\", \"world\");\n     *\n     * // with a specific timeout\n     * try {\n     *   const response = await socket.timeout(1000).emitWithAck(\"hello\", \"world\");\n     * } catch (err) {\n     *   // the server did not acknowledge the event in the given delay\n     * }\n     *\n     * @return a Promise that will be fulfilled when the server acknowledges the event\n     */\n    emitWithAck(ev, ...args) {\n        // the timeout flag is optional\n        const withErr = this.flags.timeout !== undefined || this._opts.ackTimeout !== undefined;\n        return new Promise((resolve, reject) => {\n            args.push((arg1, arg2) => {\n                if (withErr) {\n                    return arg1 ? reject(arg1) : resolve(arg2);\n                }\n                else {\n                    return resolve(arg1);\n                }\n            });\n            this.emit(ev, ...args);\n        });\n    }\n    /**\n     * Add the packet to the queue.\n     * @param args\n     * @private\n     */\n    _addToQueue(args) {\n        let ack;\n        if (typeof args[args.length - 1] === \"function\") {\n            ack = args.pop();\n        }\n        const packet = {\n            id: this._queueSeq++,\n            tryCount: 0,\n            pending: false,\n            args,\n            flags: Object.assign({ fromQueue: true }, this.flags),\n        };\n        args.push((err, ...responseArgs) => {\n            if (packet !== this._queue[0]) {\n                // the packet has already been acknowledged\n                return;\n            }\n            const hasError = err !== null;\n            if (hasError) {\n                if (packet.tryCount > this._opts.retries) {\n                    this._queue.shift();\n                    if (ack) {\n                        ack(err);\n                    }\n                }\n            }\n            else {\n                this._queue.shift();\n                if (ack) {\n                    ack(null, ...responseArgs);\n                }\n            }\n            packet.pending = false;\n            return this._drainQueue();\n        });\n        this._queue.push(packet);\n        this._drainQueue();\n    }\n    /**\n     * Send the first packet of the queue, and wait for an acknowledgement from the server.\n     * @param force - whether to resend a packet that has not been acknowledged yet\n     *\n     * @private\n     */\n    _drainQueue(force = false) {\n        if (!this.connected || this._queue.length === 0) {\n            return;\n        }\n        const packet = this._queue[0];\n        if (packet.pending && !force) {\n            return;\n        }\n        packet.pending = true;\n        packet.tryCount++;\n        this.flags = packet.flags;\n        this.emit.apply(this, packet.args);\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param packet\n     * @private\n     */\n    packet(packet) {\n        packet.nsp = this.nsp;\n        this.io._packet(packet);\n    }\n    /**\n     * Called upon engine `open`.\n     *\n     * @private\n     */\n    onopen() {\n        if (typeof this.auth == \"function\") {\n            this.auth((data) => {\n                this._sendConnectPacket(data);\n            });\n        }\n        else {\n            this._sendConnectPacket(this.auth);\n        }\n    }\n    /**\n     * Sends a CONNECT packet to initiate the Socket.IO session.\n     *\n     * @param data\n     * @private\n     */\n    _sendConnectPacket(data) {\n        this.packet({\n            type: PacketType.CONNECT,\n            data: this._pid\n                ? Object.assign({ pid: this._pid, offset: this._lastOffset }, data)\n                : data,\n        });\n    }\n    /**\n     * Called upon engine or manager `error`.\n     *\n     * @param err\n     * @private\n     */\n    onerror(err) {\n        if (!this.connected) {\n            this.emitReserved(\"connect_error\", err);\n        }\n    }\n    /**\n     * Called upon engine `close`.\n     *\n     * @param reason\n     * @param description\n     * @private\n     */\n    onclose(reason, description) {\n        this.connected = false;\n        delete this.id;\n        this.emitReserved(\"disconnect\", reason, description);\n    }\n    /**\n     * Called with socket packet.\n     *\n     * @param packet\n     * @private\n     */\n    onpacket(packet) {\n        const sameNamespace = packet.nsp === this.nsp;\n        if (!sameNamespace)\n            return;\n        switch (packet.type) {\n            case PacketType.CONNECT:\n                if (packet.data && packet.data.sid) {\n                    this.onconnect(packet.data.sid, packet.data.pid);\n                }\n                else {\n                    this.emitReserved(\"connect_error\", new Error(\"It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)\"));\n                }\n                break;\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                this.onevent(packet);\n                break;\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                this.onack(packet);\n                break;\n            case PacketType.DISCONNECT:\n                this.ondisconnect();\n                break;\n            case PacketType.CONNECT_ERROR:\n                this.destroy();\n                const err = new Error(packet.data.message);\n                // @ts-ignore\n                err.data = packet.data.data;\n                this.emitReserved(\"connect_error\", err);\n                break;\n        }\n    }\n    /**\n     * Called upon a server event.\n     *\n     * @param packet\n     * @private\n     */\n    onevent(packet) {\n        const args = packet.data || [];\n        if (null != packet.id) {\n            args.push(this.ack(packet.id));\n        }\n        if (this.connected) {\n            this.emitEvent(args);\n        }\n        else {\n            this.receiveBuffer.push(Object.freeze(args));\n        }\n    }\n    emitEvent(args) {\n        if (this._anyListeners && this._anyListeners.length) {\n            const listeners = this._anyListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, args);\n            }\n        }\n        super.emit.apply(this, args);\n        if (this._pid && args.length && typeof args[args.length - 1] === \"string\") {\n            this._lastOffset = args[args.length - 1];\n        }\n    }\n    /**\n     * Produces an ack callback to emit with an event.\n     *\n     * @private\n     */\n    ack(id) {\n        const self = this;\n        let sent = false;\n        return function (...args) {\n            // prevent double callbacks\n            if (sent)\n                return;\n            sent = true;\n            self.packet({\n                type: PacketType.ACK,\n                id: id,\n                data: args,\n            });\n        };\n    }\n    /**\n     * Called upon a server acknowlegement.\n     *\n     * @param packet\n     * @private\n     */\n    onack(packet) {\n        const ack = this.acks[packet.id];\n        if (\"function\" === typeof ack) {\n            ack.apply(this, packet.data);\n            delete this.acks[packet.id];\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon server connect.\n     *\n     * @private\n     */\n    onconnect(id, pid) {\n        this.id = id;\n        this.recovered = pid && this._pid === pid;\n        this._pid = pid; // defined only if connection state recovery is enabled\n        this.connected = true;\n        this.emitBuffered();\n        this.emitReserved(\"connect\");\n        this._drainQueue(true);\n    }\n    /**\n     * Emit buffered events (received and emitted).\n     *\n     * @private\n     */\n    emitBuffered() {\n        this.receiveBuffer.forEach((args) => this.emitEvent(args));\n        this.receiveBuffer = [];\n        this.sendBuffer.forEach((packet) => {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        });\n        this.sendBuffer = [];\n    }\n    /**\n     * Called upon server disconnect.\n     *\n     * @private\n     */\n    ondisconnect() {\n        this.destroy();\n        this.onclose(\"io server disconnect\");\n    }\n    /**\n     * Called upon forced client/server side disconnections,\n     * this method ensures the manager stops tracking us and\n     * that reconnections don't get triggered for this.\n     *\n     * @private\n     */\n    destroy() {\n        if (this.subs) {\n            // clean subscriptions to avoid reconnections\n            this.subs.forEach((subDestroy) => subDestroy());\n            this.subs = undefined;\n        }\n        this.io[\"_destroy\"](this);\n    }\n    /**\n     * Disconnects the socket manually. In that case, the socket will not try to reconnect.\n     *\n     * If this is the last active Socket instance of the {@link Manager}, the low-level connection will be closed.\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   // console.log(reason); prints \"io client disconnect\"\n     * });\n     *\n     * socket.disconnect();\n     *\n     * @return self\n     */\n    disconnect() {\n        if (this.connected) {\n            this.packet({ type: PacketType.DISCONNECT });\n        }\n        // remove socket from pool\n        this.destroy();\n        if (this.connected) {\n            // fire events\n            this.onclose(\"io client disconnect\");\n        }\n        return this;\n    }\n    /**\n     * Alias for {@link disconnect()}.\n     *\n     * @return self\n     */\n    close() {\n        return this.disconnect();\n    }\n    /**\n     * Sets the compress flag.\n     *\n     * @example\n     * socket.compress(false).emit(\"hello\");\n     *\n     * @param compress - if `true`, compresses the sending data\n     * @return self\n     */\n    compress(compress) {\n        this.flags.compress = compress;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the event message will be dropped when this socket is not\n     * ready to send messages.\n     *\n     * @example\n     * socket.volatile.emit(\"hello\"); // the server may or may not receive it\n     *\n     * @returns self\n     */\n    get volatile() {\n        this.flags.volatile = true;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the callback will be called with an error when the\n     * given number of milliseconds have elapsed without an acknowledgement from the server:\n     *\n     * @example\n     * socket.timeout(5000).emit(\"my-event\", (err) => {\n     *   if (err) {\n     *     // the server did not acknowledge the event in the given delay\n     *   }\n     * });\n     *\n     * @returns self\n     */\n    timeout(timeout) {\n        this.flags.timeout = timeout;\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * @example\n     * socket.onAny((event, ...args) => {\n     *   console.log(`got ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * @example\n     * socket.prependAny((event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * }\n     *\n     * socket.onAny(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAny(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAny();\n     *\n     * @param listener\n     */\n    offAny(listener) {\n        if (!this._anyListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAny() {\n        return this._anyListeners || [];\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.onAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.prependAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * }\n     *\n     * socket.onAnyOutgoing(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAnyOutgoing(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAnyOutgoing();\n     *\n     * @param [listener] - the catch-all listener (optional)\n     */\n    offAnyOutgoing(listener) {\n        if (!this._anyOutgoingListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyOutgoingListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyOutgoingListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAnyOutgoing() {\n        return this._anyOutgoingListeners || [];\n    }\n    /**\n     * Notify the listeners for each packet sent\n     *\n     * @param packet\n     *\n     * @private\n     */\n    notifyOutgoingListeners(packet) {\n        if (this._anyOutgoingListeners && this._anyOutgoingListeners.length) {\n            const listeners = this._anyOutgoingListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, packet.data);\n            }\n        }\n    }\n}\n", "/**\n * Initialize backoff timer with `opts`.\n *\n * - `min` initial timeout in milliseconds [100]\n * - `max` max timeout [10000]\n * - `jitter` [0]\n * - `factor` [2]\n *\n * @param {Object} opts\n * @api public\n */\nexport function Backoff(opts) {\n    opts = opts || {};\n    this.ms = opts.min || 100;\n    this.max = opts.max || 10000;\n    this.factor = opts.factor || 2;\n    this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;\n    this.attempts = 0;\n}\n/**\n * Return the backoff duration.\n *\n * @return {Number}\n * @api public\n */\nBackoff.prototype.duration = function () {\n    var ms = this.ms * Math.pow(this.factor, this.attempts++);\n    if (this.jitter) {\n        var rand = Math.random();\n        var deviation = Math.floor(rand * this.jitter * ms);\n        ms = (Math.floor(rand * 10) & 1) == 0 ? ms - deviation : ms + deviation;\n    }\n    return Math.min(ms, this.max) | 0;\n};\n/**\n * Reset the number of attempts.\n *\n * @api public\n */\nBackoff.prototype.reset = function () {\n    this.attempts = 0;\n};\n/**\n * Set the minimum duration\n *\n * @api public\n */\nBackoff.prototype.setMin = function (min) {\n    this.ms = min;\n};\n/**\n * Set the maximum duration\n *\n * @api public\n */\nBackoff.prototype.setMax = function (max) {\n    this.max = max;\n};\n/**\n * Set the jitter\n *\n * @api public\n */\nBackoff.prototype.setJitter = function (jitter) {\n    this.jitter = jitter;\n};\n", "import { Socket as Engine, installTimerFunctions, nextTick, } from \"engine.io-client\";\nimport { Socket } from \"./socket.js\";\nimport * as parser from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Backoff } from \"./contrib/backo2.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\nexport class Manager extends Emitter {\n    constructor(uri, opts) {\n        var _a;\n        super();\n        this.nsps = {};\n        this.subs = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = undefined;\n        }\n        opts = opts || {};\n        opts.path = opts.path || \"/socket.io\";\n        this.opts = opts;\n        installTimerFunctions(this, opts);\n        this.reconnection(opts.reconnection !== false);\n        this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);\n        this.reconnectionDelay(opts.reconnectionDelay || 1000);\n        this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);\n        this.randomizationFactor((_a = opts.randomizationFactor) !== null && _a !== void 0 ? _a : 0.5);\n        this.backoff = new Backoff({\n            min: this.reconnectionDelay(),\n            max: this.reconnectionDelayMax(),\n            jitter: this.randomizationFactor(),\n        });\n        this.timeout(null == opts.timeout ? 20000 : opts.timeout);\n        this._readyState = \"closed\";\n        this.uri = uri;\n        const _parser = opts.parser || parser;\n        this.encoder = new _parser.Encoder();\n        this.decoder = new _parser.Decoder();\n        this._autoConnect = opts.autoConnect !== false;\n        if (this._autoConnect)\n            this.open();\n    }\n    reconnection(v) {\n        if (!arguments.length)\n            return this._reconnection;\n        this._reconnection = !!v;\n        return this;\n    }\n    reconnectionAttempts(v) {\n        if (v === undefined)\n            return this._reconnectionAttempts;\n        this._reconnectionAttempts = v;\n        return this;\n    }\n    reconnectionDelay(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelay;\n        this._reconnectionDelay = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMin(v);\n        return this;\n    }\n    randomizationFactor(v) {\n        var _a;\n        if (v === undefined)\n            return this._randomizationFactor;\n        this._randomizationFactor = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setJitter(v);\n        return this;\n    }\n    reconnectionDelayMax(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelayMax;\n        this._reconnectionDelayMax = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMax(v);\n        return this;\n    }\n    timeout(v) {\n        if (!arguments.length)\n            return this._timeout;\n        this._timeout = v;\n        return this;\n    }\n    /**\n     * Starts trying to reconnect if reconnection is enabled and we have not\n     * started reconnecting yet\n     *\n     * @private\n     */\n    maybeReconnectOnOpen() {\n        // Only try to reconnect if it's the first time we're connecting\n        if (!this._reconnecting &&\n            this._reconnection &&\n            this.backoff.attempts === 0) {\n            // keeps reconnection from firing twice for the same reconnection loop\n            this.reconnect();\n        }\n    }\n    /**\n     * Sets the current transport `socket`.\n     *\n     * @param {Function} fn - optional, callback\n     * @return self\n     * @public\n     */\n    open(fn) {\n        if (~this._readyState.indexOf(\"open\"))\n            return this;\n        this.engine = new Engine(this.uri, this.opts);\n        const socket = this.engine;\n        const self = this;\n        this._readyState = \"opening\";\n        this.skipReconnect = false;\n        // emit `open`\n        const openSubDestroy = on(socket, \"open\", function () {\n            self.onopen();\n            fn && fn();\n        });\n        const onError = (err) => {\n            this.cleanup();\n            this._readyState = \"closed\";\n            this.emitReserved(\"error\", err);\n            if (fn) {\n                fn(err);\n            }\n            else {\n                // Only do this if there is no fn to handle the error\n                this.maybeReconnectOnOpen();\n            }\n        };\n        // emit `error`\n        const errorSub = on(socket, \"error\", onError);\n        if (false !== this._timeout) {\n            const timeout = this._timeout;\n            // set timer\n            const timer = this.setTimeoutFn(() => {\n                openSubDestroy();\n                onError(new Error(\"timeout\"));\n                socket.close();\n            }, timeout);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n        this.subs.push(openSubDestroy);\n        this.subs.push(errorSub);\n        return this;\n    }\n    /**\n     * Alias for open()\n     *\n     * @return self\n     * @public\n     */\n    connect(fn) {\n        return this.open(fn);\n    }\n    /**\n     * Called upon transport open.\n     *\n     * @private\n     */\n    onopen() {\n        // clear old subs\n        this.cleanup();\n        // mark as open\n        this._readyState = \"open\";\n        this.emitReserved(\"open\");\n        // add new subs\n        const socket = this.engine;\n        this.subs.push(on(socket, \"ping\", this.onping.bind(this)), on(socket, \"data\", this.ondata.bind(this)), on(socket, \"error\", this.onerror.bind(this)), on(socket, \"close\", this.onclose.bind(this)), on(this.decoder, \"decoded\", this.ondecoded.bind(this)));\n    }\n    /**\n     * Called upon a ping.\n     *\n     * @private\n     */\n    onping() {\n        this.emitReserved(\"ping\");\n    }\n    /**\n     * Called with data.\n     *\n     * @private\n     */\n    ondata(data) {\n        try {\n            this.decoder.add(data);\n        }\n        catch (e) {\n            this.onclose(\"parse error\", e);\n        }\n    }\n    /**\n     * Called when parser fully decodes a packet.\n     *\n     * @private\n     */\n    ondecoded(packet) {\n        // the nextTick call prevents an exception in a user-provided event listener from triggering a disconnection due to a \"parse error\"\n        nextTick(() => {\n            this.emitReserved(\"packet\", packet);\n        }, this.setTimeoutFn);\n    }\n    /**\n     * Called upon socket error.\n     *\n     * @private\n     */\n    onerror(err) {\n        this.emitReserved(\"error\", err);\n    }\n    /**\n     * Creates a new socket for the given `nsp`.\n     *\n     * @return {Socket}\n     * @public\n     */\n    socket(nsp, opts) {\n        let socket = this.nsps[nsp];\n        if (!socket) {\n            socket = new Socket(this, nsp, opts);\n            this.nsps[nsp] = socket;\n        }\n        else if (this._autoConnect && !socket.active) {\n            socket.connect();\n        }\n        return socket;\n    }\n    /**\n     * Called upon a socket close.\n     *\n     * @param socket\n     * @private\n     */\n    _destroy(socket) {\n        const nsps = Object.keys(this.nsps);\n        for (const nsp of nsps) {\n            const socket = this.nsps[nsp];\n            if (socket.active) {\n                return;\n            }\n        }\n        this._close();\n    }\n    /**\n     * Writes a packet.\n     *\n     * @param packet\n     * @private\n     */\n    _packet(packet) {\n        const encodedPackets = this.encoder.encode(packet);\n        for (let i = 0; i < encodedPackets.length; i++) {\n            this.engine.write(encodedPackets[i], packet.options);\n        }\n    }\n    /**\n     * Clean up transport subscriptions and packet buffer.\n     *\n     * @private\n     */\n    cleanup() {\n        this.subs.forEach((subDestroy) => subDestroy());\n        this.subs.length = 0;\n        this.decoder.destroy();\n    }\n    /**\n     * Close the current socket.\n     *\n     * @private\n     */\n    _close() {\n        this.skipReconnect = true;\n        this._reconnecting = false;\n        this.onclose(\"forced close\");\n        if (this.engine)\n            this.engine.close();\n    }\n    /**\n     * Alias for close()\n     *\n     * @private\n     */\n    disconnect() {\n        return this._close();\n    }\n    /**\n     * Called upon engine close.\n     *\n     * @private\n     */\n    onclose(reason, description) {\n        this.cleanup();\n        this.backoff.reset();\n        this._readyState = \"closed\";\n        this.emitReserved(\"close\", reason, description);\n        if (this._reconnection && !this.skipReconnect) {\n            this.reconnect();\n        }\n    }\n    /**\n     * Attempt a reconnection.\n     *\n     * @private\n     */\n    reconnect() {\n        if (this._reconnecting || this.skipReconnect)\n            return this;\n        const self = this;\n        if (this.backoff.attempts >= this._reconnectionAttempts) {\n            this.backoff.reset();\n            this.emitReserved(\"reconnect_failed\");\n            this._reconnecting = false;\n        }\n        else {\n            const delay = this.backoff.duration();\n            this._reconnecting = true;\n            const timer = this.setTimeoutFn(() => {\n                if (self.skipReconnect)\n                    return;\n                this.emitReserved(\"reconnect_attempt\", self.backoff.attempts);\n                // check again for the case socket closed in above events\n                if (self.skipReconnect)\n                    return;\n                self.open((err) => {\n                    if (err) {\n                        self._reconnecting = false;\n                        self.reconnect();\n                        this.emitReserved(\"reconnect_error\", err);\n                    }\n                    else {\n                        self.onreconnect();\n                    }\n                });\n            }, delay);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n    }\n    /**\n     * Called upon successful reconnect.\n     *\n     * @private\n     */\n    onreconnect() {\n        const attempt = this.backoff.attempts;\n        this._reconnecting = false;\n        this.backoff.reset();\n        this.emitReserved(\"reconnect\", attempt);\n    }\n}\n", "import { url } from \"./url.js\";\nimport { Manager } from \"./manager.js\";\nimport { Socket } from \"./socket.js\";\n/**\n * Managers cache.\n */\nconst cache = {};\nfunction lookup(uri, opts) {\n    if (typeof uri === \"object\") {\n        opts = uri;\n        uri = undefined;\n    }\n    opts = opts || {};\n    const parsed = url(uri, opts.path || \"/socket.io\");\n    const source = parsed.source;\n    const id = parsed.id;\n    const path = parsed.path;\n    const sameNamespace = cache[id] && path in cache[id][\"nsps\"];\n    const newConnection = opts.forceNew ||\n        opts[\"force new connection\"] ||\n        false === opts.multiplex ||\n        sameNamespace;\n    let io;\n    if (newConnection) {\n        io = new Manager(source, opts);\n    }\n    else {\n        if (!cache[id]) {\n            cache[id] = new Manager(source, opts);\n        }\n        io = cache[id];\n    }\n    if (parsed.query && !opts.query) {\n        opts.query = parsed.queryKey;\n    }\n    return io.socket(parsed.path, opts);\n}\n// so that \"lookup\" can be used both as a function (e.g. `io(...)`) and as a\n// namespace (e.g. `io.connect(...)`), for backward compatibility\nObject.assign(lookup, {\n    Manager,\n    Socket,\n    io: lookup,\n    connect: lookup,\n});\n/**\n * Protocol version.\n *\n * @public\n */\nexport { protocol } from \"socket.io-parser\";\n/**\n * Expose constructors for standalone build.\n *\n * @public\n */\nexport { Manager, Socket, lookup as io, lookup as connect, lookup as default, };\n", "/** A zero dependency web component that will display a managed uibuilder variable.\n *\n * Version: 1.0.1 2023-12-27\n */\n/*\n  Copyright (c) 2023-2024 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n// const template = document.createElement('template')\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<link type=\"text/css\" rel=\"stylesheet\" href=\"\"../uibuilder/uib-brand.min.css\"\" media=\"all\"><span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`\n// {/* <style>@import url(\"../uibuilder/uib-brand.min.css\");</style><span></span> */}\n// `\n\nexport default class UibVar extends HTMLElement {\n    //#region --- Class Properties ---\n    /** @type {string} Name of the uibuilder mangaged variable to use */\n    variable\n    /** Current value of the watched variable */\n    value\n    /** Whether to output if the variable is undefined */\n    undef = false\n    /** Whether to send update value to Node-RED on change */\n    report = false\n    /** What is the value type */\n    type = 'plain'\n    /** what are the available types? */\n    types = ['plain', 'html', 'markdown', 'object']\n    /** Holds uibuilder.onTopic listeners */\n    topicMonitors = {}\n    /** Is UIBUILDER loaded? */\n    uib = !!window['uibuilder']\n\n    /** Mini jQuery-like shadow dom selector (see constructor) */\n    $\n\n    /** Holds a count of how many instances of this component are on the page */\n    static _iCount = 0\n    /** @type {Array<string>} List of all of the html attribs (props) listened to */\n    static props = ['filter', 'id', 'name', 'report', 'topic', 'type', 'undefined', 'variable',]\n    //#endregion --- Class Properties ---\n\n    constructor() {\n        super()\n        this.shadow = this.attachShadow({ mode: 'open', delegatesFocus: true })\n        //  .append(template.content.cloneNode(true))\n\n        this.$ = this.shadowRoot.querySelector.bind(this.shadowRoot)\n\n        // Apply external styles to the shadow dom - assumes you use index.css in same url location as main url\n        this.css = document.createElement('link')\n        this.css.setAttribute('type', 'text/css')\n        this.css.setAttribute('rel', 'stylesheet')\n        this.css.setAttribute('href', './index.css')\n\n        this.dispatchEvent(new Event('uib-var:construction', { bubbles: true, composed: true }))\n    }\n\n    // Makes HTML attribute change watched\n    static get observedAttributes() {\n        return UibVar.props\n    }\n\n    /** Handle watched attributes\n     * NOTE: On initial startup, this is called for each watched attrib set in HTML - BEFORE connectedCallback is called.\n     * Attribute values can only ever be strings\n     * @param {string} attrib The name of the attribute that is changing\n     * @param {string} newVal The new value of the attribute\n     * @param {string} oldVal The old value of the attribute\n     */\n    attributeChangedCallback(attrib, oldVal, newVal) {\n        if ( oldVal === newVal ) return\n\n        switch (attrib) {\n            case 'variable': {\n                // NB Doesn't check if var exists because it might not be set yet\n                if (newVal === '') throw new Error('[uib-var] Attribute \"variable\" MUST be set to a UIBUILDER managed variable name')\n                this.variable = newVal\n                this.doWatch()\n                break\n            }\n            case 'undefined': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.undef = true\n                else this.undef = false\n                break\n            }\n            case 'report': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.report = true\n                else this.report = false\n                break\n            }\n            case 'type': {\n                if (newVal === '' || !this.types.includes(newVal.toLowerCase())) this.type = 'plain'\n                else this.type = newVal\n                break\n            }\n            case 'topic': {\n                // console.log(1, attrib, newVal)\n                // Handle empty topic\n                if (!newVal) break\n                // Ignore if not using uibuilder\n                if (!this.uib) break\n                // If variable attrib set, give warning and ignore\n                if (this.variable) {\n                    console.warn('\u26A0\uFE0F [uib-var] Cannot process both variable and topic attributes, use only 1. Using variable')\n                    break\n                }\n\n                this.topic = newVal\n\n                // Cancel old listener just in case\n                if (this.topicMonitors[newVal]) uibuilder.cancelTopic(newVal, this.topicMonitors[newVal])\n                // Set up a uibuilder listener for this topic - ASSUMES msg.payload contains the VALUE to show\n                this.topicMonitors[newVal] = uibuilder.onTopic(newVal, (msg) => {\n                    // console.log('topicMonitor ', newVal, msg)\n                    this.value = msg.payload\n                    this.varDom()\n                    if (this.report === true) window['uibuilder'].send({ topic: this.variable, payload: this.value || undefined })\n                })\n                this.varDom()\n\n                break\n            }\n            case 'filter': {\n                this.filter = undefined\n                this.filterArgs = []\n\n                // Handle empty filter\n                if (!newVal) break\n\n                this.filter = newVal\n\n                // Filter the input - at least limit the length of the attr\n                newVal = newVal.slice(0, 127)\n                // Remove spaces and then separate fn name from potential extra arguments\n                const f = newVal.replace(/\\s/g, '').match(/([a-zA-Z_$][a-zA-Z_$0-9.-]+)(\\((.*)\\))?/)\n                if (!f) {\n                    console.warn(`\u26A0\uFE0F [uib-var] Filter function \"${newVal}\" invalid. Cannot process.`)\n                    break\n                }\n                // Fn name\n                this.filter = f[1]\n                // Fn arguments\n                if (f[3]) { // undefined if no args found\n                    // TODO Do we really want to try this?\n                    try {\n                        this.filterArgs = JSON.parse(f[3])\n                    } catch (e) {}\n\n                    this.filterArgs = f[3].split(',').map((x) => {\n                        // No objects/arrays allowed - if they have a , they are split\n                        x = x.trim()\n                        // @ts-ignore NB: Do NOT use Number.isNaN here, it is too narrow minded\n                        if (isNaN(x)) {\n                            // String inside string ends up double quoted so remove those\n                            let y = x.replace(/^[\"'`]/, '').replace(/[\"'`]$/, '')\n                            // Attempt very limited parse in case it is valid object/array\n                            try {\n                                y = new Function(`return ${y}`)() // eslint-disable-line no-new-func\n                            } catch (e) {}\n                            return y\n                        }\n                        return Number(x)\n                    })\n                }\n\n                // Apply the filter directly if neither variable nor topic attribs set\n                if (!this.variable && !this.topic) this.varDom(false)\n                break\n            }\n\n            default: {\n                this[attrib] = newVal\n                break\n            }\n        }\n    } // --- end of attributeChangedCallback --- //\n\n    // Runs when an instance is added to the DOM\n    connectedCallback() {\n        // Make sure instance has an ID. Create an id from name or calculation if needed\n        if (!this.id) {\n            if (!this.name) this.name = this.getAttribute('name')\n            if (this.name) this.id = this.name.toLowerCase().replace(/\\s/g, '_')\n            else this.id = `uib-var-${++UibVar._iCount}`\n        }\n    }  // ---- end of connectedCallback ---- //\n\n    // Runs when an instance is removed from the DOM\n    disconnectedCallback() {\n        // Ignore if not using uibuilder\n        if (this.uib) {\n            Object.keys(this.topicMonitors).forEach( topic => {\n                uibuilder.cancelTopic(topic, this.topicMonitors[topic])\n            })\n        }\n    } // ---- end of disconnectedCallback ---- //\n\n    /** Process changes to the required uibuilder variable */\n    doWatch() {\n        if (!this.variable) throw new Error('No variable name provided')\n        // if (!this.uib) throw new Error('UIBUILDER client library not loaded - this component must be loaded AFTER the UIBUILDER library')\n\n        this.value = window['uibuilder'].get(this.variable)\n        this.varDom()\n\n        // Watch for changes in the variable\n        window['uibuilder'].onChange(this.variable, (val) => {\n            this.value = val\n            this.varDom()\n            if (this.report === true) window['uibuilder'].send({ topic: this.variable, payload: this.value || undefined })\n        })\n    }\n\n    /** Convert this.value to DOM output (applies output filter if needed)\n     * @param {boolean} chkVal If true (default), check for undefined value. False used to run filter even with no value set.\n     */\n    varDom(chkVal = true) {\n        // If user doesn't want to show undefined vars, allow the component slot to show instead\n        if (chkVal === true && !this.value && this.undef !== true) {\n            this.shadow.innerHTML = '<slot></slot>'\n            return\n        }\n\n        // Apply the filter to the value before display\n        const val = chkVal ? this.doFilter(this.value) : this.doFilter()\n\n        // console.log('\uD83E\uDDEA varDOM: ', val, typeof val, this.type)\n\n        let out = val\n\n        switch (this.type) {\n            case 'markdown': {\n                if (this.uib) out = window['uibuilder'].convertMarkdown(val)\n                break\n            }\n\n            case 'object': {\n                // console.log(window['uibuilder'].syntaxHighlight(val))\n                out = `<pre class=\"syntax-highlight\">${this.uib ? window['uibuilder'].syntaxHighlight(val) : val}</pre>`\n                break\n            }\n\n            case 'plain':\n            case 'html':\n            default: {\n                const t = typeof val\n                if (Array.isArray(val) || t === '[object Object]' || t === 'object') {\n                    try {\n                        out = JSON.stringify(val)\n                    } catch (e) {}\n                }\n                break\n            }\n        }\n        if (this.uib) this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(out)\n        else this.shadow.innerHTML = out\n\n        this.shadow.appendChild(this.css)\n    }\n\n    /** Apply value filter if specified\n     * @param {*} value The value to change\n     * @returns {*} The amended value that will be displayed\n     */\n    doFilter(value) {\n        if (this.filter) {\n            // Cater for dotted notation functions (e.g. uibuilder.get)\n            const splitFilter = this.filter.split('.')\n            let globalFn = globalThis[splitFilter[0]]\n            if (globalFn && splitFilter.length > 1) {\n                const parts = [splitFilter.pop()]\n                parts.forEach( part => {\n                    globalFn = globalFn[part]\n                } )\n            }\n            if (!globalFn && this.uib === true) globalFn = globalThis['uibuilder'][splitFilter[0]]\n            if (globalFn && typeof globalFn !== 'function' ) globalFn = undefined\n            if (globalFn) {\n                const argList = value === undefined ? [...this.filterArgs] : [value, ...this.filterArgs]\n                value = Reflect.apply(globalFn, value ?? globalFn, argList)\n            } else {\n                console.warn(`\u26A0\uFE0F [uib-var] Filter function \"${this.filter}\" ${typeof globalFn === 'object' ? 'is an object not a function' : 'not found'}`)\n            }\n        }\n\n        return value\n    }\n}\n\n// Add the class as a new Custom Element to the window object\n// customElements.define('uib-var', UibVar)\n"],
-  "mappings": 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"parts", "parse", "str", "src", "b", "e", "m", "uri", "i", "pathNames", "queryKey", "obj", "path", "regx", "names", "query", "data", "$0", "$1", "$2", "Socket", "_Socket", "Emitter", "uri", "opts", "defaultBinaryType", "parse", "installTimerFunctions", "decode", "name", "query", "protocol", "transports", "transport", "reason", "failed", "onTransportOpen", "msg", "cleanup", "err", "freezeTransport", "onerror", "error", "onTransportClose", "onclose", "onupgrade", "to", "i", "l", "packet", "data", "packets", "payloadSize", "byteLength", "options", "fn", "type", "close", "cleanupAndClose", "waitForUpgrade", "description", "upgrades", "filteredUpgrades", "j", "protocol", "Socket", "url", "uri", "path", "loc", "obj", "parse", "host", "esm_exports", "__export", "Decoder", "Encoder", "PacketType", "protocol", "withNativeArrayBuffer", "isView", "obj", "toString", "withNativeBlob", "withNativeFile", "isBinary", "hasBinary", "toJSON", "i", "l", "key", "deconstructPacket", "packet", "buffers", "packetData", "pack", "_deconstructPacket", "data", "isBinary", "placeholder", "newData", "key", "reconstructPacket", "_reconstructPacket", "i", "RESERVED_EVENTS", "protocol", "PacketType", "Encoder", "replacer", "obj", "hasBinary", "str", "deconstruction", "deconstructPacket", "pack", "buffers", "isObject", "value", "Decoder", "_Decoder", "Emitter", "reviver", "packet", "isBinaryEvent", "BinaryReconstructor", "isBinary", "i", "p", "start", "buf", "next", "c", "payload", "type", "binData", "reconstructPacket", "on", "obj", "ev", "fn", "RESERVED_EVENTS", "Socket", "Emitter", "io", "nsp", "opts", "on", "args", "ev", "packet", "PacketType", "id", "ack", "isTransportWritable", "_a", "timeout", "timer", "i", "withErr", "resolve", "reject", "arg1", "arg2", "err", "responseArgs", "force", "data", "reason", "description", "listeners", "listener", "self", "sent", "pid", "subDestroy", "compress", "Backoff", "opts", "ms", "rand", "deviation", "min", "max", "jitter", "Manager", "Emitter", "uri", "opts", "_a", "installTimerFunctions", "Backoff", "_parser", "esm_exports", "v", "fn", "Socket", "socket", "self", "openSubDestroy", "on", "onError", "err", "errorSub", "timeout", "timer", "data", "e", "packet", "nextTick", "nsp", "nsps", "encodedPackets", "subDestroy", "reason", "description", "delay", "attempt", "cache", "lookup", "uri", "opts", "parsed", "url", "source", "id", "path", "sameNamespace", "newConnection", "io", "Manager", "Socket", "_UibVar", "__publicField", "attrib", "oldVal", "newVal", "msg", "f", "x", "y", "topic", "val", "chkVal", "out", "t", "value", "splitFilter", "globalFn", "part", "argList", "UibVar", "version", "isMinified", "param", "logLevel", "LOG_STYLES", "log", "args", "level", "strLevel", "head", "makeMeAnObject", "thing", "property", "out", "urlJoin", "e", "syntaxHighlight", "json", "match", "cls", "_ui", "Ui", "_a", "_pingInterval", "_propChangeCallbacks", "_msgRecvdByTopicCallbacks", "_timerid", "_MsgHandler", "_isShowMsg", "_isShowStatus", "_sendUrlHash", "_extCommands", "_managedVars", "_showStatus", "_uiObservers", "Uib", "__publicField", "__privateAdd", "cb", "c", "splitC", "event", "__privateGet", "fullPath", "autoloadVars", "id", "prop", "val", "store", "autoload", "value", "autoVars", "title", "details", "callback", "nextCbRef", "propChangeCallback", "cbRef", "topic", "msgRecvdEvtCallback", "msg", "receivedMsg", "serverTimestamp", "offset", "originator", "ms", "oReq", "headers", "elapsedTime", "__privateSet", "varToCopy", "data", "cssSelector", "el", "exists", "url", "deflt", "ret", "toggle", "decimalPlaces", "intl", "opts", "mdText", "uiOptions", "textFn", "component", "html", "type", "ui", "propName", "showHide", "parent", "slot", "config", "res", "err", "root", "entry", "startStop", "send", "showLog", "targetNode", "that", "mutationList", "mu", "oMu", "an", "i", "htmlCache", "receivedCtrlMsg", "obj", "r", "msgToSend", "channel", "numMsgs", "cmd", "quiet", "response", "info", "newUrl", "txtToSend", "domevent", "target", "props", "key", "ignoreAttribs", "attribs", "name", "form", "frmVals", "frmEl", "v", "classes", "payload", "nprops", "room", "ioNamespace", "u", "t", "delay", "factor", "depth", "reason", "lookup", "options", "eMsg", "uibuilder", "uibuilder_module_default", "uibuilder", "UibVar"]
+  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\n// Namespaces - See https://stackoverflow.com/a/52572048/1309986\n// const NAMESPACES = {\n//     svg: 'http://www.w3.org/2000/svg',\n//     html: 'http://www.w3.org/1999/xhtml',\n//     xml: 'http://www.w3.org/XML/1998/namespace',\n//     xlink: 'http://www.w3.org/1999/xlink',\n//     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n// }\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    //#region ---- Internal Methods ----\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                if (attrib === 'class' && Array.isArray(comp.attributes[attrib])) comp.attributes[attrib].join(' ')\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n    } // --- end of _uiManager ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    //#endregion ---- -------- ----\n    //#region ---- External Methods ----\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {HTMLElement|null} Selected HTML element or null\n     */\n    $(cssSelector) {\n        /** @type {*} Some kind of HTML element */\n        let el = document.querySelector(cssSelector)\n\n        if (!el) {\n            Ui.log(1, 'Uib:$', `No element found for CSS selector ${cssSelector}`)()\n            return null\n        }\n\n        if ( el.nodeName === 'TEMPLATE' ) {\n            el = el.content.firstElementChild\n            if (!el) {\n                Ui.log(0, 'Uib:$', `Template selected for CSS selector ${cssSelector} but it is empty`)()\n                return null\n            }\n        }\n\n        return el\n    }\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {string} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {HTMLElement[]} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$(cssSelector) {\n        return Array.from(document.querySelectorAll(cssSelector))\n    }\n\n    /** Add 1 or several class names to an element\n     * @param {string|string[]} classNames Single or array of classnames\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    addClass(classNames, el) {\n        if (!Array.isArray(classNames)) classNames = [classNames]\n        if (el) el.classList.add(...classNames)\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n                if (attrib.name === 'class') thisOut.classes = Array.from(node.classList)\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    /** Remove All, 1 or more class names from an element\n     * @param {undefined|null|\"\"|string|string[]} classNames Single or array of classnames. If undefined, \"\" or null, remove all classes\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    removeClass(classNames, el) {\n        if (!classNames) {\n            el.removeAttribute('class')\n            return\n        }\n        if (!Array.isArray(classNames)) classNames = [classNames]\n        if (el) el.classList.remove(...classNames)\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += `<div>${msg.payload}</div>`\n        if (ui.content) content += `<div>${ui.content}</div>`\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        console.log(this)\n        this._uiManager(msg)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName) {\n                if (propName === 'classes') propName = 'class'\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    const p = {}\n                    // Nightmare of different object types in a DOM Element!\n                    const cType = prop.constructor.name.toLowerCase()\n                    if (cType === 'namednodemap') {\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                    } else if (!cType.includes('map')) { // Ordinary properties (not a mapped type)\n                        p[propName] = prop\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                    }\n                    if (p.class) p.classes = Array.from(node.classList)\n                    out.push(p)\n                }\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    /** External alias for _uiComposeComponent\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    //#endregion ---- -------- ----\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n", "/* This is the Front-End JavaScript for uibuilder  in HTML Module form\n  It provides a number of global objects that can be used in your own javascript.\n  see the docs folder `./docs/uibuilder.module.md` for details of how to use this fully.\n\n  Please use the default index.js file for your own code and leave this as-is.\n  See Uib._meta for client version string\n\n  Copyright (c) 2022-2024 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n//#region --- Type Defs --- //\n/**\n * A string containing HTML markup\n * @typedef {string} html\n */\n//#endregion --- Type Defs --- //\n\n// We need the Socket.IO & ui libraries & the uib-var component  --- //\n// @ts-ignore - Note: Only works when using esbuild to bundle\nimport Ui from './ui'\nimport io from 'socket.io-client'\nimport UibVar from '../components/uib-var'\n\nconst version = '6.8.0-src'\n\n// TODO Add option to allow log events to be sent back to Node-RED as uib ctrl msgs\n//#region --- Module-level utility functions --- //\n\n// @ts-ignore Detect whether the loaded library is minified or not\nconst isMinified = !(/param/).test(function (param) { }) // eslint-disable-line no-unused-vars\n\n//#region --- print/console - debugging output functions --- //\n\n/** Default log level - Error & Warn */\nlet logLevel = isMinified ? 0 : 1  // When using minified lib, assume production and only log errors otherwise also log warn\n// function changeLogLevel(level) {\n//     logLevel = level\n//     console.trace = logLevel < 4 ? function(){} : console.trace\n//     console.debug = logLevel < 2 ? function(){} : console.debug\n//     if ( logLevel < 1 ) {\n//         console.log = console.group = console.groupEnd =  function(){}\n//     }\n// }\n\n// Experimental\nconst LOG_STYLES = {\n    // 0\n    error: {\n        css: 'background: red; color: black;',\n        txtCss: 'color: red; ',\n        pre: '\u26D4 ',\n        console: 'error',  // or trace\n    },\n    // 1\n    warn: {\n        css: 'background: darkorange; color: black;',\n        txtCss: 'color: darkorange; ',\n        pre: '\u26A0 ',\n        console: 'warn',\n    },\n    // 2\n    info: {\n        css: 'background: aqua; color: black;',\n        txtCss: 'color: aqua;',\n        pre: '\u2757 ',\n        console: 'info',\n    },\n    // 3\n    log: {\n        css: 'background: grey; color: yellow;',\n        txtCss: 'color: grey;',\n        pre: '',\n        console: 'log',\n    },\n    // 4\n    debug: {\n        css: 'background: chartreuse; color: black;',\n        txtCss: 'color: chartreuse;',\n        pre: '',\n        console: 'debug',\n    },\n    // 5\n    trace: {\n        css: 'background: indigo; color: yellow;',\n        txtCss: 'color: hotpink;',\n        pre: '',\n        console: 'log',\n    },\n\n    names: ['error', 'warn', 'info', 'log', 'debug', 'trace'],\n    reset: 'color: inherit;',\n    head: 'font-weight:bold; font-style:italic;',\n    level: 'font-weight:bold; border-radius: 3px; padding: 2px 5px; display:inline-block;',\n}\n/** Custom logging. e.g. log(2, 'here:there', 'jiminy', {fred:'jim'})()\n * @returns {Function} Log function @example log(2, 'here:there', 'jiminy', {fred:'jim'})()\n */\nfunction log() {\n    // Get the args\n    const args = Array.prototype.slice.call(arguments)\n\n    // 1st arg is the log level/type\n    let level = args.shift()\n    let strLevel\n    switch (level) {\n        case 'trace':\n        case 5: {\n            if (logLevel < 5) break\n            level = 5 // make sure level is numeric\n            strLevel = 'trace'\n            break\n        }\n\n        case 'debug':\n        case 4: {\n            if (logLevel < 4) break\n            level = 4\n            strLevel = 'debug'\n            break\n        }\n\n        case 'log':\n        case 3: {\n            if (logLevel < 3) break\n            level = 3\n            strLevel = 'log'\n            break\n        }\n\n        case 'info':\n        case '':\n        case 2: {\n            if (logLevel < 2) break\n            level = 2\n            strLevel = 'info'\n            break\n        }\n\n        case 'warn':\n        case 1: {\n            if (logLevel < 1) break\n            level = 1\n            strLevel = 'warn'\n            break\n        }\n\n        case 'error':\n        case 'err':\n        case 0: {\n            if (logLevel < 0) break\n            level = 0\n            strLevel = 'error'\n            break\n        }\n\n        default: {\n            level = -1\n            break\n        }\n\n    }\n\n    // If set to something unknown, no log output\n    if (strLevel === undefined) return function () { }\n\n    // 2nd arg is a heading that will be colour highlighted\n    const head = args.shift()\n\n    // Bind back to console.log (could use console[strLevel] but some levels ignore some formatting, use console.xxx directly or dedicated fn)\n    return Function.prototype.bind.call(\n        console[LOG_STYLES[strLevel].console],\n        console,\n        `%c${LOG_STYLES[strLevel].pre}${strLevel}%c [${head}]`, `${LOG_STYLES.level} ${LOG_STYLES[strLevel].css}`, `${LOG_STYLES.head} ${LOG_STYLES[strLevel].txtCss}`,\n        ...args\n    )\n}\n//#endregion\n\n/** A hack to dynamically load a remote module and wait until it is loaded\n * @param {string} url The URL of the module to load\n * @returns {object|null} Either the result object or null (if the load fails)\n */\n// function loadModule(url) { // eslint-disable-line no-unused-vars\n//     let done\n\n//     import(url)\n//         .then(res => {\n//             log('debug', '>> then >>', res)()\n//             done = res\n//         })\n//         .catch(err => {\n//             console.error(`[uibuilder:loadModule] Could not load module ${url}`, err)\n//             done = null\n//         })\n\n//     //  eslint-disable-next-line no-empty\n//     while (!done) { } // eslint-disable-line no-unmodified-loop-condition\n\n//     return done\n// }\n\n/** Makes a null or non-object into an object\n * If not null, moves \"thing\" to {payload:thing}\n *\n * @param {*} thing Thing to check\n * @param {string} [property='payload'] property that \"thing\" is moved to if not null and not an object\n * @returns {!object} _\n */\nfunction makeMeAnObject(thing, property) {\n    if (!property) property = 'payload'\n    if (typeof property !== 'string') {\n        log('warn', 'uibuilderfe:makeMeAnObject', `WARNING: property parameter must be a string and not: ${typeof property}`)()\n        property = 'payload'\n    }\n    let out = {}\n    if ( thing !== null && thing.constructor.name === 'Object' ) {\n        out = thing\n    } else if (thing !== null) {\n        out[property] = thing\n    }\n    return out\n} // --- End of make me an object --- //\n\n/** Joins all arguments as a URL string\n * see http://stackoverflow.com/a/28592528/3016654\n * since v1.0.10, fixed potential double // issue\n * arguments {string} URL fragments\n * @returns {string} _\n */\nfunction urlJoin() {\n    const paths = Array.prototype.slice.call(arguments)\n    const url = '/' + paths.map(function (e) {\n        return e.replace(/^\\/|\\/$/g, '')\n    })\n        .filter(function (e) {\n            return e\n        })\n        .join('/')\n    return url.replace('//', '/')\n} // ---- End of urlJoin ---- //\n\n/** Convert JSON to Syntax Highlighted HTML\n * @param {object} json A JSON/JavaScript Object\n * @returns {html} Object reformatted as highlighted HTML\n */\nfunction syntaxHighlight(json) {\n    if (json === undefined) {\n        json = '<span class=\"undefined\">undefined</span>'\n    } else {\n        try {\n            json = JSON.stringify(json, undefined, 4)\n            // json = json.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;') // eslint-disable-line newline-per-chained-call\n            json = json.replace(/(\"(\\\\u[a-zA-Z0-9]{4}|\\\\[^u]|[^\\\\\"])*\"(\\s*:)?|\\b(true|false|null)\\b|-?\\d+(?:\\.\\d*)?(?:[eE][+-]?\\d+)?)/g, function (match) { // eslint-disable-line prefer-named-capture-group\n                let cls = 'number'\n                if ((/^\"/).test(match)) {\n                    if ((/:$/).test(match)) {\n                        cls = 'key'\n                    } else {\n                        cls = 'string'\n                    }\n                } else if ((/true|false/).test(match)) {\n                    cls = 'boolean'\n                } else if ((/null/).test(match)) {\n                    cls = 'null'\n                }\n                return `<span class=\"${cls}\">${match}</span>`\n            })\n        } catch (e) {\n            json = `Syntax Highlight ERROR: ${e.message}`\n        }\n    }\n    return json\n}\n\n/** msg._ui handling functions */\nconst _ui = new Ui(window, log, syntaxHighlight)\n\n//#endregion --- Module-level utility functions --- //\n\n/** Define and export the Uib class - note that an instance of the class is also exported in the wrap-up\n * @typicalname uibuilder\n */\nexport const Uib = class Uib {\n\n    //#region --- Static variables ---\n    static _meta = {\n        version: version,\n        type: 'module',\n        displayName: 'uibuilder',\n    }\n    //#endregion ---- ---- ---- ----\n\n    //#region private class vars\n\n    // How many times has the loaded instance connected to Socket.IO (detect if not a new load?)\n    connectedNum = 0\n    // event listener callbacks by property name\n    // #events = {}\n    // Socket.IO channel names\n    _ioChannels = { control: 'uiBuilderControl', client: 'uiBuilderClient', server: 'uiBuilder' }\n    /** setInterval holder for pings @type {function|undefined} */\n    #pingInterval\n    // onChange event callbacks\n    #propChangeCallbacks = {}\n    // onTopic event callbacks\n    #msgRecvdByTopicCallbacks = {}\n    // Is Vue available?\n    isVue = false\n    // What version? Set in startup if Vue is loaded. Won't always work\n    vueVersion = undefined\n    /** setInterval id holder for Socket.IO checkConnect\n     * @type {number|null}\n     */\n    #timerid = null\n    // Holds the reference ID for the internal msg change event handler so that it can be cancelled\n    #MsgHandler\n    // Placeholder for io.socket - can't make a # var until # fns allowed in all browsers\n    _socket\n    // Placeholder for an observer that watches the whole DOM for changes - can't make a # var until # fns allowed in all browsers\n    _htmlObserver\n    // Has showMsg been turned on?\n    #isShowMsg = false\n    // Has showStatus been turned on?\n    #isShowStatus = false\n    // If true, URL hash changes send msg back to node-red. Controlled by watchUrlHash()\n    #sendUrlHash = false\n    // Externally accessible command functions (NB: Case must match) - remember to update _uibCommand for new commands\n    #extCommands = [\n        'elementExists', 'get', 'getManagedVarList', 'getWatchedVars', 'htmlSend', 'include',\n        'navigate', 'scrollTo', 'set', 'showMsg', 'showStatus', 'uiGet', 'uiWatch', 'watchUrlHash',\n    ]\n\n    /** @type {{[key: string]: string}} Managed uibuilder variables */\n    #managedVars = {}\n\n    // What status variables to show via showStatus()\n    #showStatus = {\n        online: { 'var': 'online', 'label': 'Online?', 'description': 'Is the browser online?', },\n        ioConnected: { 'var': 'ioConnected', 'label': 'Socket.IO connected?', 'description': 'Is Socket.IO connected?', },\n        connectedNum: { 'var': 'connectedNum', 'label': '# reconnections', 'description': 'How many times has Socket.IO had to reconnect since last page load?', },\n\n        clientId: { 'var': 'clientId', 'label': 'Client ID', 'description': 'Static client unique id set in Node-RED. Only changes when browser is restarted.', },\n        tabId: { 'var': 'tabId', 'label': 'Browser tab ID', 'description': 'Static unique id for the browser\\'s current tab', },\n        cookies: { 'var': 'cookies', 'label': 'Cookies', 'description': 'Cookies set in Node-RED', },\n        httpNodeRoot: { 'var': 'httpNodeRoot', 'label': 'httpNodeRoot', 'description': 'From Node-RED\\' settings.js, affects URL\\'s. May be wrong for pages in sub-folders', },\n        pageName: { 'var': 'pageName', 'label': 'Page name', 'description': 'Actual name of this page', },\n\n        ioNamespace: { 'var': 'ioNamespace', 'label': 'SIO namespace', 'description': 'Socket.IO namespace - unique to each uibuilder node instance', },\n        // ioPath: { 'var': 'ioPath', 'label': 'SIO path', 'description': '', }, // no longer needed in the modern client\n        socketError: { 'var': 'socketError', 'label': 'Socket error', 'description': 'If the Socket.IO connection has failed, says why', },\n\n        msgsSent: { 'var': 'msgsSent', 'label': '# msgs sent', 'description': 'How many standard messages have been sent to Node-RED?', },\n        msgsReceived: { 'var': 'msgsReceived', 'label': '# msgs received', 'description': 'How many standard messages have been received from Node-RED?', },\n        msgsSentCtrl: { 'var': 'msgsSentCtrl', 'label': '# control msgs sent', 'description': 'How many control messages have been sent to Node-RED?', },\n        msgsCtrlReceived: { 'var': 'msgsCtrlReceived', 'label': '# control msgs received', 'description': 'How many control messages have been received from Node-RED?', },\n        originator: { 'var': 'originator', 'label': 'Node Originator', 'description': 'If the last msg from Node-RED was from a `uib-sender` node, this will be its node id so that messasges can be returned to it', },\n        topic: { 'var': 'topic', 'label': 'Default topic', 'description': 'Optional default topic to be included in outgoing standard messages', },\n\n        started: { 'var': 'started', 'label': 'Has uibuilder client started?', 'description': 'Whether `uibuilder.start()` ran successfully. This should self-run and should not need to be run manually', },\n        version: { 'var': 'version', 'label': 'uibuilder client version', 'description': 'The version of the loaded uibuilder client library', },\n        serverTimeOffset: { 'var': 'serverTimeOffset', 'label': 'Server time offset (Hrs)', 'description': 'The number of hours difference between the Node-red server and the client', },\n    }\n\n    // Track ui observers (see uiWatch)\n    #uiObservers = {}\n\n    //#endregion\n\n    //#region public class vars\n\n    // TODO Move to proper getters\n    //#region ---- Externally read-only (via .get method) ---- //\n    // version - moved to _meta\n    /** Client ID set by uibuilder on connect */\n    clientId = ''\n    /** The collection of cookies provided by uibuilder */\n    cookies = {}\n    /** Copy of last control msg object received from sever */\n    ctrlMsg = {}\n    /** Is Socket.IO client connected to the server? */\n    ioConnected = false\n    // Is the browser tab containing this page visible or not?\n    isVisible = false\n    // Remember the last page (re)load/navigation type: navigate, reload, back_forward, prerender\n    lastNavType = ''\n    /** Last std msg received from Node-RED */\n    msg = {}\n    /** number of messages sent to server since page load */\n    msgsSent = 0\n    /** number of messages received from server since page load */\n    msgsReceived = 0\n    /** number of control messages sent to server since page load */\n    msgsSentCtrl = 0\n    /** number of control messages received from server since page load */\n    msgsCtrlReceived = 0\n    /** Is the client online or offline? */\n    online = navigator.onLine\n    /** last control msg object sent via uibuilder.send() @since v2.0.0-dev3 */\n    sentCtrlMsg = {}\n    /** last std msg object sent via uibuilder.send() */\n    sentMsg = {}\n    /** placeholder to track time offset from server, see fn socket.on(ioChannels.server ...) */\n    serverTimeOffset = null\n    /** placeholder for a socket error message */\n    socketError = null\n    // tab identifier from session storage\n    tabId = ''\n    // Actual name of current page (set in constructor)\n    pageName = null\n    // Is the DOMPurify library loaded? Updated in start()\n    purify = false\n    // Is the Markdown-IT library loaded? Updated in start()\n    markdown = false\n    // Current URL hash. Initial set is done from start->watchHashChanges via a set to make it watched\n    urlHash = location.hash\n    //#endregion ---- ---- ---- ---- //\n\n    // TODO Move to proper getters/setters\n    //#region ---- Externally Writable (via .set method, read via .get method) ---- //\n    /** Default originator node id - empty string by default\n     * @type {string}\n     */\n    originator = ''\n    /** Default topic - used by send if set and no topic provided\n     * @type {(string|undefined)}\n     */\n    topic = undefined\n    //#endregion ---- ---- ---- ---- //\n\n    //#region ---- These are unlikely to be needed externally: ----\n    autoSendReady = true\n    httpNodeRoot = '' // Node-RED setting (via cookie)\n    ioNamespace = ''\n    ioPath = ''\n    retryFactor = 1.5       // starting delay factor for subsequent reconnect attempts\n    retryMs = 2000          // starting retry ms period for manual socket reconnections workaround\n    storePrefix = 'uib_'    // Prefix for all uib-related localStorage\n    started = false\n    // NOTE: These can only change when a client (re)connects\n    socketOptions = {\n        path: this.ioPath,\n        transports: ['polling', 'websocket'],\n        // Using callback so that they are updated automatically on (re)connect\n        // Only put things in here that will be valid for a websocket connected session\n        auth: (cb) => {\n            cb({ // eslint-disable-line n/no-callback-literal\n                clientVersion: version,\n                clientId: this.clientId,\n                pathName: window.location.pathname,\n                urlParams: Object.fromEntries(new URLSearchParams(location.search)),\n                pageName: this.pageName,\n                tabId: this.tabId,\n                lastNavType: this.lastNavType,\n                connectedNum: ++this.connectedNum,\n                // Used to calculate the diff between the server and client connection timestamps - reported if >1 minute\n                browserConnectTimestamp: (new Date()).toISOString(),\n            })\n        },\n        transportOptions: {\n            // Can only set headers when polling\n            polling: {\n                extraHeaders: {\n                    'x-clientid': `${Uib._meta.displayName}; ${Uib._meta.type}; ${Uib._meta.version}; ${this.clientId}`,\n                }\n            },\n        },\n    }\n    //#endregion -- not external --\n\n    //#endregion --- End of variables ---\n\n    //#region ------- Getters and Setters ------- //\n\n    // Change logging level dynamically (affects both console. and print.)\n    set logLevel(level) { logLevel = level; console.log('%c\u2757 info%c [logLevel]', `${LOG_STYLES.level} ${LOG_STYLES.info.css}`, `${LOG_STYLES.head} ${LOG_STYLES.info.txtCss}`, `Set to ${level} (${LOG_STYLES.names[level]})`) /* changeLogLevel(level)*/ }\n    get logLevel() { return logLevel }\n\n    get meta() { return Uib._meta }\n\n    /** Function to set uibuilder properties to a new value - works on any property except _* or #*\n     * Also triggers any event listeners.\n     * Example: this.set('msg', {topic:'uibuilder', payload:42});\n     * @param {string} prop Any uibuilder property who's name does not start with a _ or #\n     * @param {*} val The set value of the property or a string declaring that a protected property cannot be changed\n     * @param {boolean} [store] If true, the variable is also saved to the browser localStorage if possible\n     * @param {boolean} [autoload] If true & store is true, on load, uib will try to restore the value from the store automatically\n     * @returns {*} Input value\n     */\n    set(prop, val, store = false, autoload = false) {\n        // Check for excluded properties - we don't want people to set these\n        // if (this.#excludedSet.indexOf(prop) !== -1) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:set', `Cannot use set() on protected property \"${prop}\"`)()\n            return `Cannot use set() on protected property \"${prop}\"`\n        }\n\n        // We must add the var to the uibuilder object\n        this[prop] = val\n\n        // Keep track of all managed variables\n        this.#managedVars[prop] = prop\n\n        // If requested, save to store\n        if (store === true) this.setStore(prop, val, autoload)\n\n        log('trace', 'Uib:set', `prop set - prop: ${prop}, val: `, val, ` store: ${store}, autoload: ${autoload}`)()\n\n        // Trigger this prop's event callbacks (listeners which are set by this.onChange)\n        // this.emit(prop, val)\n\n        // trigger an event on the prop name, pass both the name and value to the event details\n        this._dispatchCustomEvent('uibuilder:propertyChanged', { 'prop': prop, 'value': val, 'store': store, 'autoload': autoload })\n\n        return val\n    }\n\n    /** Function to get the value of a uibuilder property\n     * Example: uibuilder.get('msg')\n     * @param {string} prop The name of the property to get as long as it does not start with a _ or #\n     * @returns {*|undefined} The current value of the property\n     */\n    get(prop) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:get', `Cannot use get() on protected property \"${prop}\"`)()\n            return\n        }\n        if (prop === 'version') return Uib._meta.version\n        if (prop === 'msgsCtrl') return this.msgsCtrlReceived\n        if (prop === 'reconnections') return this.connectedNum\n        if (this[prop] === undefined) {\n            log('warn', 'Uib:get', `get() - property \"${prop}\" is undefined`)()\n        }\n        return this[prop]\n    }\n\n    /** Write to localStorage if possible. console error output if can't write\n     * Also uses this.storePrefix\n     * @example\n     *   uibuilder.setStore('fred', 42)\n     *   console.log(uibuilder.getStore('fred'))\n     * @param {string} id localStorage var name to be used (prefixed with 'uib_')\n     * @param {*} value value to write to localstore\n     * @param {boolean} [autoload] If true, on load, uib will try to restore the value from the store\n     * @returns {boolean} True if succeeded else false\n     */\n    setStore(id, value, autoload = false) {\n        let autoVars = {}\n        if (autoload === true) {\n            try {\n                autoVars = this.getStore('_uibAutoloadVars') || {}\n            } catch (e) {}\n        }\n        if (typeof value === 'object') {\n            try {\n                value = JSON.stringify(value)\n            } catch (e) {\n                log('error', 'Uib:setStore', 'Cannot stringify object, not storing. ', e)()\n                return false\n            }\n        }\n        try {\n            localStorage.setItem(this.storePrefix + id, value)\n            if (autoload) {\n                autoVars[id] = id\n                try {\n                    localStorage.setItem(this.storePrefix + '_uibAutoloadVars', JSON.stringify(autoVars))\n                } catch (e) {\n                    log('error', 'Uib:setStore', 'Cannot save autoload list. ', e)()\n                }\n            }\n            this._dispatchCustomEvent('uibuilder:propertyStored', { 'prop': id, 'value': value, 'autoload': autoload })\n            return true\n        } catch (e) {\n            log('error', 'Uib:setStore', 'Cannot write to localStorage. ', e)()\n            return false\n        }\n    } // --- end of setStore --- //\n\n    /** Attempt to get and re-hydrate a key value from localStorage\n     * Note that all uib storage is automatically prefixed using this.storePrefix\n     * @param {*} id The key of the value to attempt to retrieve\n     * @returns {*|null|undefined} The re-hydrated value of the key or null if key not found, undefined on error\n     */\n    getStore(id) {\n        try {\n            // @ts-ignore\n            return JSON.parse(localStorage.getItem(this.storePrefix + id))\n        } catch (e) { }\n        try {\n            return localStorage.getItem(this.storePrefix + id)\n        } catch (e) {\n            return undefined\n        }\n    }\n\n    /** Remove a given id from the uib keys in localStorage\n     * @param {*} id The key to remove\n     */\n    removeStore(id) {\n        try {\n            localStorage.removeItem(this.storePrefix + id)\n        } catch (e) { }\n    }\n\n    /** Returns a list of uibuilder properties (variables) that can be watched with onChange\n     * @returns {{[key: string]: string}} List of uibuilder managed variables\n     */\n    getManagedVarList() {\n        return this.#managedVars\n    }\n\n    getWatchedVars() {\n        return Object.keys(this.#propChangeCallbacks)\n    }\n\n    //#endregion ------- -------- ------- //\n\n    //#region ------- Our own event handling system ---------- //\n\n    // TODO Add option to send event details back to Node-RED as uib ctrl msg\n    /** Standard fn to create a custom event with details & dispatch it\n     * @param {string} title The event name\n     * @param {*} details Any details to pass to event output\n     */\n    _dispatchCustomEvent(title, details) {\n        const event = new CustomEvent(title, { detail: details })\n        document.dispatchEvent(event)\n    }\n\n    // See the this.#propChangeCallbacks & msgRecvdByTopicCallbacks private vars\n\n    /** Register on-change event listeners for uibuilder tracked properties\n     * Make it possible to register a function that will be run when the property changes.\n     * Note that you can create listeners for non-existant properties\n     * @example: uibuilder.onChange('msg', (msg) => { console.log('uibuilder.msg changed! It is now: ', msg) })\n     *\n     * @param {string} prop The property of uibuilder that we want to monitor\n     * @param {Function} callback The function that will run when the property changes, parameter is the new value of the property after change\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelChange if you need to remove a listener\n     */\n    onChange(prop, callback) {\n        // Note: Property does not have to exist yet\n\n        // console.debug(`[Uib:onchange] pushing new callback (event listener) for property: ${prop}`)\n\n        // Create a new array or add to the array of callback functions for the property in the events object\n        // if (this.#events[prop]) {\n        //     this.#events[prop].push(callback)\n        // } else {\n        //     this.#events[prop] = [callback]\n        // }\n\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#propChangeCallbacks[prop]) this.#propChangeCallbacks[prop] = { _nextRef: 1 }\n        else this.#propChangeCallbacks[prop]._nextRef++\n\n        const nextCbRef = this.#propChangeCallbacks[prop]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const propChangeCallback = this.#propChangeCallbacks[prop][nextCbRef] = function propChangeCallback(e) {\n            // If the prop name matches the 1st arg in the onChange fn:\n            if (prop === e.detail.prop) {\n                const value = e.detail.value\n                // console.warn('[Uib:onChange:evt] uibuilder:propertyChanged. ', e.detail)\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(value, value)\n            }\n        }\n\n        document.addEventListener('uibuilder:propertyChanged', propChangeCallback)\n\n        return nextCbRef\n    } // ---- End of onChange() ---- //\n\n    cancelChange(prop, cbRef) {\n        document.removeEventListener('uibuilder:propertyChanged', this.#propChangeCallbacks[prop][cbRef])\n        delete this.#propChangeCallbacks[prop][cbRef]\n        // this.#propChangeCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Register a change callback for a specific msg.topic\n     * Similar to onChange but more convenient if needing to differentiate by msg.topic.\n     * @example: let otRef = uibuilder.onTopic('mytopic', function(){ console.log('Received a msg with msg.topic=`mytopic`. msg: ', this) })\n     * To cancel a change listener: uibuilder.cancelTopic('mytopic', otRef)\n     *\n     * @param {string} topic The msg.topic we want to listen for\n     * @param {Function} callback The function that will run when an appropriate msg is received. `this` inside the callback as well as the cb's single argument is the received msg.\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelTopic if you need to remove a listener\n     */\n    onTopic(topic, callback) {\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#msgRecvdByTopicCallbacks[topic]) this.#msgRecvdByTopicCallbacks[topic] = { _nextRef: 1 }\n        else this.#msgRecvdByTopicCallbacks[topic]._nextRef++\n\n        const nextCbRef = this.#msgRecvdByTopicCallbacks[topic]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const msgRecvdEvtCallback = this.#msgRecvdByTopicCallbacks[topic][nextCbRef] = function msgRecvdEvtCallback(e) {\n            const msg = e.detail\n            // console.log('[Uib:onTopic:evt] uibuilder:stdMsgReceived where topic matches. ', e.detail)\n            if (msg.topic === topic) {\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(msg, msg)\n            }\n        }\n\n        document.addEventListener('uibuilder:stdMsgReceived', msgRecvdEvtCallback)\n\n        return nextCbRef\n    }\n\n    cancelTopic(topic, cbRef) {\n        document.removeEventListener('uibuilder:stdMsgReceived', this.#msgRecvdByTopicCallbacks[topic][cbRef])\n        delete this.#msgRecvdByTopicCallbacks[topic][cbRef]\n        // this.#msgRecvdCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Trigger event listener for a given property\n     * Called when uibuilder.set is used\n     *\n     * @param {*} prop The property for which to run the callback functions\n     * arguments: Additional arguments contain the value to pass to the event callback (e.g. newValue)\n     */\n    // emit(prop) {\n    //     var evt = this.#events[prop]\n    //     if (!evt) {\n    //         return\n    //     }\n    //     var args = Array.prototype.slice.call(arguments, 1)\n    //     for (var i = 0; i < evt.length; i++) {\n    //         evt[i].apply(this, args)\n    //     }\n    //     log('trace', 'Uib:emit', `${evt.length} listeners run for prop ${prop} `)()\n    // }\n\n    /** Forcibly removes all event listeners from the events array\n     * Use if you need to re-initialise the environment\n     */\n    // clearEventListeners() {\n    //     this.#events = []\n    // } // ---- End of clearEventListeners() ---- //\n\n    /** Clear a single property event listeners\n     * @param {string} prop The property of uibuilder for which we want to clear the event listener\n     */\n    // clearListener(prop) {\n    //     if (this.#events[prop]) delete this.#events[prop]\n    // }\n\n    //#endregion ---------- End of event handling system ---------- //\n\n    //#region ------- General Utility Functions -------- //\n\n    /** Check supplied msg from server for a timestamp - if received, work out & store difference to browser time\n     * @param {object} receivedMsg A message object recieved from Node-RED\n     * @returns {void} Updates self.serverTimeOffset if different to previous value\n     */\n    _checkTimestamp(receivedMsg) {\n        if (Object.prototype.hasOwnProperty.call(receivedMsg, 'serverTimestamp')) {\n            const serverTimestamp = new Date(receivedMsg.serverTimestamp)\n            // @ts-ignore\n            const offset = Math.round(((new Date()) - serverTimestamp) / 3600000) // in ms /3.6m to get hours\n            if (offset !== this.serverTimeOffset) {\n                log('trace', `Uib:checkTimestamp:${this._ioChannels.server} (server)`, `Offset changed to: ${offset} from: ${this.serverTimeOffset}`)()\n                this.set('serverTimeOffset', offset)\n            }\n        }\n    }\n\n    /** Set up an event listener to watch for hash changes\n     * and set the watchable urlHash variable\n     */\n    _watchHashChanges() {\n        this.set('urlHash', location.hash)\n        window.addEventListener('hashchange', (event) => {\n            this.set('urlHash', location.hash)\n            if (this.#sendUrlHash === true) {\n                this.send({ topic: 'hashChange', payload: location.hash, newHash: this.keepHashFromUrl(event.newURL), oldHash: this.keepHashFromUrl(event.oldURL) })\n            }\n        })\n    }\n\n    /** Copies a uibuilder variable to the browser clipboard\n     * @param {string} varToCopy The name of the uibuilder variable to copy to the clipboard\n     */\n    copyToClipboard(varToCopy) {\n        let data = ''\n        try {\n            data = JSON.stringify(this.get(varToCopy))\n        } catch (e) {\n            log('error', 'copyToClipboard', `Could not copy \"${varToCopy}\" to clipboard.`, e.message)()\n        }\n        navigator.clipboard.writeText(data)\n    } // --- End of copyToClipboard --- //\n\n    /** Does the chosen CSS Selector currently exist?\n     * Automatically sends a msg back to Node-RED unless turned off.\n     * @param {string} cssSelector Required. CSS Selector to examine for visibility\n     * @param {boolean} [msg] Optional, default=true. If true also sends a message back to Node-RED\n     * @returns {boolean} True if the element exists\n     */\n    elementExists(cssSelector, msg = true) {\n        const el = document.querySelector(cssSelector)\n\n        let exists = false\n        if (el !== null) exists = true\n\n        if (msg === true) {\n            this.send({\n                payload: exists,\n                info: `Element \"${cssSelector}\" ${exists ? 'exists' : 'does not exist'}`\n            })\n        }\n\n        return exists\n    } // --- End of elementExists --- //\n\n    /** Format a number using the INTL standard library - compatible with uib-var filter function\n     * @param {number} value Number to format\n     * @param {number} decimalPlaces Number of decimal places to include. Default=no default\n     * @param {string} intl standard locale spec, e.g. \"ja-JP\" or \"en-GB\". Default=navigator.language\n     * @param {object} opts INTL library options object. Optional\n     * @returns {string} formatted number\n     * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/toLocaleString\n     */\n    formatNumber(value, decimalPlaces, intl, opts) {\n        if (isNaN(value)) {\n            log('error', 'formatNumber', `Value must be a number. Value type: \"${typeof value}\"`)()\n            return 'NaN'\n        }\n        if (!opts) opts = {}\n        if (!intl) intl = navigator.language ? navigator.language : 'en-GB'\n        if (decimalPlaces) {\n            opts.minimumFractionDigits = decimalPlaces\n            opts.maximumFractionDigits = decimalPlaces\n        }\n        let out\n        try {\n            out = Number(value).toLocaleString(intl, opts)\n        } catch (e) {\n            log('error', 'formatNumber', `${e.message}. value=${value}, dp=${decimalPlaces}, intl=\"${intl}\", opts=${JSON.stringify(opts)}`)()\n            return 'NaN'\n        }\n        return out\n    }\n\n    /** Only keep the URL Hash & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return '#' + url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    log() {\n        log(...arguments)()\n    }\n\n    /** Navigate to a new page or a new route (hash)\n     * @param {string} url URL to navigate to. Can be absolute or relative (to current page) or just a hash for a route change\n     * @returns {Location} The new window.location string\n     */\n    navigate(url) {\n        if (url) window.location.href = url\n        return window.location\n    }\n\n    /** Set the default originator. Set to '' to ignore. Used with uib-sender.\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    setOriginator(originator = '') {\n        this.set('originator', originator)\n    } // ---- End of setOriginator ---- //\n\n    /** HTTP Ping/Keep-alive - makes a call back to uibuilder's ExpressJS server and receives a 204 response\n     * Can be used to keep sessions alive.\n     * @example\n     *   uibuilder.setPing(2000) // repeat every 2 sec. Re-issue with ping(0) to turn off repeat.\n     *   uibuilder.onChange('ping', function(data) {\n     *      console.log('pinger', data)\n     *   })\n     * @param {number} ms Repeat interval in ms\n     */\n    setPing(ms = 0) {\n        const oReq = new XMLHttpRequest()\n        oReq.addEventListener('load', () => {\n            const headers = (oReq.getAllResponseHeaders()).split('\\r\\n')\n            const elapsedTime = Number(new Date()) - Number((oReq.responseURL.split('='))[1])\n            this.set('ping', {\n                success: !!((oReq.status === 201) || (oReq.status === 204)), // true if one of the listed codes else false\n                status: oReq.status,\n                headers: headers,\n                url: oReq.responseURL,\n                elapsedTime: elapsedTime,\n            })\n        })\n\n        if (this.#pingInterval) {\n            clearInterval(this.#pingInterval)\n            this.#pingInterval = undefined\n        }\n\n        oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n        oReq.send()\n\n        if (ms > 0) {\n            this.#pingInterval = setInterval(() => {\n                oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n                oReq.send()\n            }, ms)\n        }\n    } // ---- End of ping ---- //\n\n    /** Convert JSON to Syntax Highlighted HTML\n     * @param {object} json A JSON/JavaScript Object\n     * @returns {html} Object reformatted as highlighted HTML\n     */\n    syntaxHighlight(json) {\n        return syntaxHighlight(json)\n    } // --- End of syntaxHighlight --- //\n\n    /** Returns true/false or a default value for truthy/falsy and other values\n     * @param {string|number|boolean|*} val The value to test\n     * @param {any} deflt Default value to use if the value is not truthy/falsy\n     * @returns {boolean|any} The truth! Or the default\n     */\n    truthy(val, deflt) {\n        let ret\n        if (['on', 'On', 'ON', 'true', 'True', 'TRUE', '1', true, 1].includes(val)) ret = true\n        else if (['off', 'Off', 'OFF', 'false', 'False', 'FALSE', '0', false, 0].includes(val)) ret = false\n        else ret = deflt\n        return ret\n    }\n\n    /** Turn on/off/toggle sending URL hash changes back to Node-RED\n     * @param {string|number|boolean|undefined} [toggle] Optional on/off/etc\n     * @returns {boolean} True if we will send a msg to Node-RED on a hash change\n     */\n    watchUrlHash(toggle) {\n        this.#sendUrlHash = this.truthy(toggle, this.#sendUrlHash !== true)\n        return this.#sendUrlHash\n    }\n\n    /** DEPRECATED FOR NOW - wasn't working properly.\n     * Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.\n     * Requires IntersectionObserver (available to all mainstream browsers from early 2019)\n     * Automatically sends a msg back to Node-RED.\n     * Requires the element to already exist.\n     * @returns {false} False if not visible\n     */\n    elementIsVisible() {\n        const info = 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'\n        log('error', 'uib:elementIsVisible', info)()\n        this.send({ payload: 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex' })\n        return false\n    } // --- End of elementIsVisible --- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- UI handlers --------- //\n\n    //#region -- Direct to _ui --\n    // ! NOTE: Direct assignments change the target `this` to here. Use with caution\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {HTMLElement|null} Selected HTML element or null\n     */\n    $ = _ui.$\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {string} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {HTMLElement[]} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$ = _ui.$$\n\n    /** Reference to the full ui library */\n    $ui = _ui\n\n    /** Add 1 or several class names to an element\n     * @param {string|string[]} classNames Single or array of classnames\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    addClass = _ui.addClass\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        return _ui.convertMarkdown\n    }\n\n    /** ASYNC: Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     */\n    async include(url, uiOptions) {\n        await _ui.include(url, uiOptions)\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        _ui.loadScriptSrc(url)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        _ui.loadStyleSrc(url)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        _ui.loadScriptTxt(textFn)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        _ui.loadStyleTxt(textFn)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        _ui.loadui(url)\n    }\n\n    /** Remove All, 1 or more class names from an element\n     * @param {undefined|null|\"\"|string|string[]} classNames Single or array of classnames. If undefined, \"\" or null, remove all classes\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    removeClass = _ui.removeClass\n\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        _ui.replaceSlot(el, component)\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        _ui.replaceSlotMarkdown(el, component)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        return _ui.sanitiseHTML(html)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) {\n        _ui.showDialog(type, ui, msg)\n    }\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        _ui.ui(json)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        return _ui.uiGet(cssSelector, propName)\n    }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} component Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, component) {\n        _ui.uiEnhanceElement(el, component)\n    }\n\n    //#endregion -- direct to _ui --\n\n    /** * Show/hide a display card on the end of the visible HTML that will dynamically display the last incoming msg from Node-RED\n     * The card has the id `uib_last_msg`. Updates are done from a listener set up in the start function.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showMsg(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowMsg\n        this.#isShowMsg = showHide\n        let slot = 'Waiting for a message from Node-RED'\n\n        if (this.msg && Object.keys(this.msg).length > 0) {\n            slot = this.syntaxHighlight(this.msg)\n        }\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_last_msg_wrap',\n                ],\n            })\n        } else {\n            _ui._uiReplace({\n                components: [\n                    {\n                        type: 'div',\n                        id: 'uib_last_msg_wrap',\n                        parent: parent,\n                        attributes: {\n                            title: 'Last message from Node-RED',\n                        },\n                        components: [\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.copyToClipboard(\"msg\")',\n                                    class: 'compact',\n                                    style: 'right:3em;',\n                                },\n                                slot: '\uD83D\uDCCB',\n                            },\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.showMsg()',\n                                    class: 'compact',\n                                    style: 'right:.5em;',\n                                },\n                                slot: '\u26D4',\n                            },\n                            {\n                                type: 'pre',\n                                id: 'uib_last_msg',\n                                // parent: 'uib_last_msg_wrap',\n                                attributes: {\n                                    class: 'syntax-highlight',\n                                },\n                                slot: slot,\n                            },\n                        ],\n                    },\n                ],\n            })\n        }\n\n        return showHide\n    }\n\n    /** Show a browser notification if possible.\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * @example uibuilder.notify( 'My simple message to the user' )\n     * @example uibuilder.notify( {topic: 'My Title', payload: 'My simple message to the user'} )\n     * @example uibuilder.notify( {title: 'My Title', body: 'My simple message to the user'} )\n     * @example // If config.return = true, a promise is returned.\n     * // The resolved promise is only returned if the notification is clicked by the user.\n     * // Can be used to send the response back to Node-RED\n     * uibuilder.notify(notifyConfig).then( res => uibuilder.eventSend(res) )\n     * @ref https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config data or simple message string\n     * @returns {Promise<Event>|null} A promise that resolves to the click event or null\n     */\n    notify(config) {\n        if (config.return) return _ui.notification(config)\n\n        _ui.notification(config)\n            .then( res => { // eslint-disable-line promise/always-return\n                log('info', 'Uib:notification', 'Notification completed event', res)()\n                // if (config.return) return res\n            })\n            .catch( err => {\n                log('error', 'Uib:notification', 'Notification error event', err)()\n            })\n        return null\n    }\n\n    /** Scroll the page\n     * https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollIntoView\n     * @param {string} [cssSelector] Optional. If not set, scrolls to top of page.\n     * @param {{block:(string|undefined),inline:(string|undefined),behavior:(string|undefined)}} [opts] Optional. DOM scrollIntoView options\n     * @returns {boolean} True if element was found, false otherwise\n     */\n    scrollTo(cssSelector, opts) {\n        // @ts-ignore\n        if (!opts) opts = {}\n        if (!cssSelector || cssSelector === 'top'  || cssSelector === 'start') cssSelector = 'body'\n        else if (cssSelector === 'bottom' || cssSelector === 'end') {\n            cssSelector = 'body'\n            opts.block = 'end'\n        }\n        const el = this.$(cssSelector)\n        if (el) {\n            el.scrollIntoView(opts)\n            return true\n        }\n        return false\n    }\n\n    /** Show/hide a display card on the end of the visible HTML that will dynamically display the current status of the uibuilder client\n     * The card has the id `uib_status`.\n     * The display is updated by an event listener created in the class constructor.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showStatus(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowStatus\n        this.#isShowStatus = showHide\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_status',\n                ],\n            })\n            return showHide\n        }\n\n        const root = {\n            components: [\n                {\n                    type: 'div',\n                    id: 'uib_status',\n                    parent: parent,\n                    attributes: {\n                        title: 'Current status of the uibuilder client',\n                        class: 'text-smaller',\n                    },\n                    components: [\n                        {\n                            'type': 'table',\n                            'components': [\n                                {\n                                    'type': 'tbody',\n                                    'components': []\n                                }\n                            ]\n                        }\n                    ]\n                }\n            ]\n        }\n        const details = root.components[0].components[0].components[0].components\n\n        Object.values(this.#showStatus).forEach( entry => {\n            details.push({\n                'type': 'tr',\n                'attributes': {\n                    title: entry.description,\n                },\n                'components': [\n                    {\n                        'type': 'th',\n                        'slot': entry.label,\n                    },\n                    {\n                        'type': 'td',\n                        'attributes': {\n                            'data-varType': entry.var,\n                        },\n                        'slot': entry.var === 'version' ? Uib._meta.version : JSON.stringify(this[entry.var]),\n                    }\n                ],\n            })\n        })\n\n        _ui._uiReplace(root)\n\n        return showHide\n    }\n\n    /** Use the Mutation Observer browser API to watch for changes to a single element on the page.\n     * OMG! It is sooo hard to turn the data into something that successfully serialises so it can be sent back to Node-RED!\n     * NB: Each cssSelector creates a unique watcher. Sending the same selector overwrites the previous one.\n     * @param {string} cssSelector A CSS Selector that selects the element to watch for changes\n     * @param {boolean|\"toggle\"} [startStop] true=start watching the DOM, false=stop. Default='toggle'\n     * @param {boolean} [send] true=Send changes to Node-RED, false=Don't send. Default=true\n     * @param {boolean} [showLog] true=Output changes to log, false=stop. Default=true. Log level is 2 (Info)\n     * @returns {boolean} True if the watch is on, false otherwise\n     */\n    uiWatch(cssSelector, startStop = 'toggle', send = true, showLog = true) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.querySelector(cssSelector)\n        if (!targetNode) {\n            log('warn', 'uibuilder.module.js:uiWatch', `CSS Selector '${cssSelector}' not found.`)()\n            return false\n        }\n\n        if (startStop === 'toggle' || startStop === undefined || startStop === null) {\n            if (this.#uiObservers[cssSelector]) startStop = false\n            else startStop = true\n        }\n\n        // Need a ref to the Uib this\n        const that = this\n\n        if (startStop === true) {\n            // Create an observer instance\n            this.#uiObservers[cssSelector] = new MutationObserver( function( mutationList /* , observer */ ) {\n                const out = []\n\n                mutationList.forEach( mu => {\n                    // console.log({ mu })\n                    const oMu = {\n                        type: mu.type,\n                        oldValue: mu.oldValue !== null ? mu.oldValue : undefined,\n                    }\n\n                    if (mu.addedNodes.length > 0) {\n                        oMu.addedNodes = []\n                        mu.addedNodes.forEach( (an, i) => {\n                            oMu.addedNodes.push(_ui.nodeGet(mu.addedNodes[i]))\n                        })\n                    }\n\n                    if (mu.removedNodes.length > 0) {\n                        oMu.removedNodes = []\n                        mu.removedNodes.forEach( (an, i) => {\n                            oMu.removedNodes.push(_ui.nodeGet(mu.removedNodes[i]))\n                        })\n                    }\n\n                    if ( mu.type === 'attributes' ) {\n                        oMu.attributeName = mu.attributeName\n                        // @ts-ignore\n                        oMu.newValue = mu.target.attributes[mu.attributeName].value\n                    }\n\n                    out.push(oMu)\n                })\n\n                // Custom event\n                that._dispatchCustomEvent('uibuilder:domChange', out)\n                // Send a msg back to node-red\n                if (send === true) {\n                    that.send({\n                        _ui: {\n                            cssSelector: cssSelector,\n                            uiChanges: out\n                        },\n                        topic: that.topic || `DOM Changes for '${cssSelector}'`,\n                    })\n                }\n                // Log to info\n                if (showLog === true) {\n                    log('info', 'uibuilder.module.js:uiWatch', `DOM Changes for '${cssSelector}'`, { uiChanges: out }, { mutationList })()\n                }\n            } )\n\n            // Start observing the target node for configured mutations\n            this.#uiObservers[cssSelector].observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:uiWatch', `Started Watching DOM changes for '${cssSelector}'`)()\n        } else {\n            this.#uiObservers[cssSelector].disconnect()\n            delete this.#uiObservers[cssSelector]\n            log('trace', 'uibuilder.module.js:uiWatch', `Stopped Watching DOM changes for '${cssSelector}'`)()\n        }\n\n        return startStop\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- HTML cache and DOM watch --------- //\n\n    /** Clear the saved DOM from localStorage */\n    clearHtmlCache() {\n        this.removeStore('htmlCache')\n        log('trace', 'uibuilder.module.js:clearHtmlCache', 'HTML cache cleared')()\n    }\n\n    /** Restore the complete DOM (the whole web page) from browser localStorage if available */\n    restoreHtmlFromCache() {\n        // Is the html cached? If so, restore it\n        const htmlCache = this.getStore('htmlCache')\n        if (htmlCache) {\n            const targetNode = document.getElementsByTagName('html')[0]\n            // Restore the entire HTML\n            targetNode.innerHTML = htmlCache\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'Restored HTML from cache')()\n        } else {\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'No cache to restore')()\n        }\n    }\n\n    /** Save the current DOM state to browser localStorage.\n     * localStorage is persistent and so can be recovered even after a browser restart.\n     */\n    saveHtmlCache() {\n        // Save the updated entire HTML in localStorage\n        this.setStore('htmlCache', document.documentElement.innerHTML)\n    }\n\n    /** Use the Mutation Observer browser API to watch for and save changes to the HTML\n     * Once the observer is created, it will be reused.\n     * Sending true or undefined will turn on the observer, false turns it off.\n     * saveHtmlCache is called whenever anything changes in the dom. This allows\n     * users to call restoreHtmlFromCache() on page load if desired to completely reload\n     * to the last saved state.\n     * @param {boolean} startStop true=start watching the DOM, false=stop\n     */\n    watchDom(startStop) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.documentElement\n\n        // Need a ref to the Uib this\n        const that = this\n\n        // Create an observer instance\n        if (!this._htmlObserver) {\n            this._htmlObserver = new MutationObserver( function(/* mutationList, observer */) {\n                // We don't need to know the details - so kill off any outstanding mutation records\n                this.takeRecords()\n                // Save the updated entire HTML in localStorage\n                that.saveHtmlCache()\n            } )\n        }\n\n        if (startStop === true || startStop === undefined) {\n            // Start observing the target node for configured mutations\n            this._htmlObserver.observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:watchDom', 'Started Watching and saving DOM changes')()\n        } else {\n            this._htmlObserver.disconnect()\n            log('trace', 'uibuilder.module.js:watchDom', 'Stopped Watching and saving DOM changes')()\n        }\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- Message Handling (To/From Node-RED) -------- //\n\n    /** Handles original control msgs (not to be confused with \"new\" msg._uib controls)\n     * @param {*} receivedCtrlMsg The msg received on the socket.io control channel\n     */\n    _ctrlMsgFromServer(receivedCtrlMsg) {\n\n        // Make sure that msg is an object & not null\n        if (receivedCtrlMsg === null) {\n            receivedCtrlMsg = {}\n        } else if (typeof receivedCtrlMsg !== 'object') {\n            const msg = {}\n            msg['uibuilderCtrl:' + this._ioChannels.control] = receivedCtrlMsg\n            receivedCtrlMsg = msg\n        }\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedCtrlMsg)\n\n        this.set('ctrlMsg', receivedCtrlMsg)\n        this.set('msgsCtrlReceived', ++this.msgsCtrlReceived)\n\n        log('trace', 'Uib:ioSetup:_ctrlMsgFromServer', `Channel '${this._ioChannels.control}'. Received control msg #${this.msgsCtrlReceived}`, receivedCtrlMsg)()\n\n        /** Process control msg types */\n        switch (receivedCtrlMsg.uibuilderCtrl) {\n            // Node-RED is shutting down\n            case 'shutdown': {\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, '\u274C Received \"shutdown\" from server')()\n                this.set('serverShutdown', undefined)\n                break\n            }\n\n            /** We are connected to the server - 1st msg from server */\n            case 'client connect': {\n                log('trace', `Uib:ioSetup:${this._ioChannels.control}`, 'Received \"client connect\" from server')()\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, `\u2705 Server connected. Version: ${receivedCtrlMsg.version}\\nServer time: ${receivedCtrlMsg.serverTimestamp}, Sever time offset: ${this.serverTimeOffset} hours`)()\n\n                if ( !Uib._meta.version.startsWith(receivedCtrlMsg.version.split('-')[0]) ) {\n                    log('warn', `Uib:ioSetup:${this._ioChannels.control}`, `Server version (${receivedCtrlMsg.version}) not the same as the client version (${Uib._meta.version})`)()\n                }\n\n                if (this.autoSendReady === true) { // eslint-disable-line no-lonely-if\n                    log('trace', `Uib:ioSetup:${this._ioChannels.control}/client connect`, 'Auto-sending ready-for-content/replay msg to server')\n                    // @since 0.4.8c Add cacheControl property for use with node-red-contrib-infocache\n                    // @since 6.1.0 Don't bother, we use the \"client connect\" msg\n                    // this._send({\n                    //     'uibuilderCtrl': 'ready for content',\n                    //     'cacheControl': 'REPLAY',\n                    // }, this._ioChannels.control)\n                }\n\n                break\n            }\n\n            default: {\n                log('trace', `uibuilderfe:ioSetup:${this._ioChannels.control}`, `Received ${receivedCtrlMsg.uibuilderCtrl} from server`)\n                // Anything else to do for other control msgs?\n            }\n        } // ---- End of process control msg types ---- //\n    } // -- End of websocket receive CONTROL msg from Node-RED -- //\n\n    /** Do we want to process something? Check pageName, clientId, tabId. Defaults to yes.\n     * @param {*} obj Either a msg._ui or msg._uib object to check\n     * @returns {boolean} True if we should process the inbound _ui/_uib msg, false if not.\n     */\n    _forThis(obj) {\n        let r = true\n\n        // Is this msg for this pageName?\n        if (obj.pageName && obj.pageName !== this.pageName) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this page')()\n            r = false\n        }\n\n        // Is this msg for this clientId?\n        if (obj.clientId && obj.clientId !== this.clientId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this clientId')()\n            r = false\n        }\n\n        // Is this msg for this tabId?\n        if (obj.tabId && obj.tabId !== this.tabId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this tabId')()\n            r = false\n        }\n\n        return r\n    }\n\n    // Handle received messages - Process some msgs internally, emit specific events on document that make it easy for coders to use\n    _msgRcvdEvents(msg) {\n        // Message received\n        this._dispatchCustomEvent('uibuilder:stdMsgReceived', msg)\n\n        // Topic\n        if ( msg.topic ) this._dispatchCustomEvent(`uibuilder:msg:topic:${msg.topic}`, msg)\n\n        // Handle msg._uib special requests\n        if (msg._uib) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._uib)) return\n\n            /** Process a client reload request from Node-RED - as the page is reloaded, everything else is ignored\n             * Note that msg._ui.reload is also actioned via the _ui processing below */\n            if (msg._uib.reload === true) {\n                log('trace', 'Uib:_msgRcvdEvents:_uib:reload', 'reloading')()\n                location.reload()\n                return\n            }\n\n            // Process msg._uib.command messages - allows Node-RED to run uibuilder FE functions\n            if (msg._uib.command) {\n                this._uibCommand(msg)\n                return\n            }\n\n            // Better to request via msg._ui - these are for backwards compatibility\n            if ( msg._uib.componentRef === 'globalNotification' ) {\n                _ui.showDialog('notify', msg._uib.options, msg)\n            }\n            if ( msg._uib.componentRef === 'globalAlert' ) {\n                _ui.showDialog('alert', msg._uib.options, msg)\n            }\n        }\n\n        // Handle msg._ui requests\n        if ( msg._ui ) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._ui)) return\n\n            log('trace', 'Uib:_msgRcvdEvents:_ui', 'Calling _uiManager')()\n            this._dispatchCustomEvent('uibuilder:msg:_ui', msg)\n            _ui._uiManager(msg)\n        }\n    } // --- end of _msgRcvdEvents ---\n\n    /** Internal send fn. Send a standard or control msg back to Node-RED via Socket.IO\n     * NR will generally expect the msg to contain a payload topic\n     * @param {object} msgToSend The msg object to send.\n     * @param {string} [channel=uiBuilderClient] The Socket.IO channel to use, must be in self.ioChannels or it will be ignored\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    _send(msgToSend, channel, originator = '') {\n        if (channel === null || channel === undefined) channel = this._ioChannels.client\n\n        // Make sure msgToSend is an object\n        if (channel === this._ioChannels.client) {\n            msgToSend = makeMeAnObject(msgToSend, 'payload')\n        } else if (channel === this._ioChannels.control) {\n            msgToSend = makeMeAnObject(msgToSend, 'uibuilderCtrl')\n            if (!Object.prototype.hasOwnProperty.call(msgToSend, 'uibuilderCtrl')) {\n                msgToSend.uibuilderCtrl = 'manual send'\n            }\n            // help remember where this came from as ctrl msgs can come from server or client\n            msgToSend.from = 'client'\n        }\n\n        /** since 2020-01-02 Added _socketId which should be the same as the _socketId on the server */\n        msgToSend._socketId = this._socket.id\n\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n\n        // Add the originator metadata if required\n        if (originator === '' && this.originator !== '') originator = this.originator\n        if (originator !== '') Object.assign(msgToSend, { '_uib': { 'originator': originator } })\n\n        // If the msg does not have a topic - see if we want to add one\n        if ( !Object.prototype.hasOwnProperty.call(msgToSend, 'topic') ) {\n            // From the default (`uibuilder.set('topic', 'some topic')`)\n            if (this.topic !== undefined && this.topic !== '') msgToSend.topic = this.topic\n            else {\n                // Did the last inbound msg have a topic?\n                if ( Object.prototype.hasOwnProperty.call(this, 'msg') && Object.prototype.hasOwnProperty.call(this.msg, 'topic') ) {\n                    msgToSend.topic = this.msg.topic\n                }\n            }\n        }\n\n        // If a standard send & _ui property exists, make sure to add _ui.from = 'client'\n        if (msgToSend._ui) msgToSend._ui.from = 'client'\n\n        // Track how many messages have been sent & last msg sent\n        let numMsgs\n        if (channel === this._ioChannels.client) {\n            this.set('sentMsg', msgToSend)\n            numMsgs = this.set('msgsSent', ++this.msgsSent)\n        } else if (channel === this._ioChannels.control) {\n            this.set('sentCtrlMsg', msgToSend)\n            numMsgs = this.set('msgsSentCtrl', ++this.msgsSentCtrl)\n        }\n        log('trace', 'Uib:_send', ` Channel '${channel}'. Sending msg #${numMsgs}`, msgToSend)()\n\n        this._socket.emit(channel, msgToSend)\n    } // --- End of Send Msg Fn --- //\n\n    /** Callback handler for messages from Node-RED\n     * NOTE: `this` is the class here rather the `socket` as would be normal since we bind the correct `this` in the call.\n     *       Use this._socket if needing reference to the socket.\n     * @callback ioSetupFromServer Called from ioSetup/this._socket.on(this.#ioChannels.server, this.stdMsgFromServer.bind(this))\n     * @param {object} receivedMsg The msg object from Node-RED\n     * @this Uib\n     */\n    _stdMsgFromServer(receivedMsg) {\n\n        // Make sure that msg is an object & not null\n        receivedMsg = makeMeAnObject(receivedMsg, 'payload')\n\n        // Don't process if the inbound msg is not for us\n        if (receivedMsg._uib && !this._forThis(receivedMsg._uib)) return\n        if (receivedMsg._ui && !this._forThis(receivedMsg._ui)) return\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedMsg)\n\n        // Track how many messages have been received\n        this.set('msgsReceived', ++this.msgsReceived)\n\n        // Emit specific document events on msg receipt that make it easy for coders to use\n        this._msgRcvdEvents(receivedMsg)\n\n        if ( !('_ui' in receivedMsg && !('payload' in receivedMsg)) ) {\n            // Save the msg for further processing\n            this.set('msg', receivedMsg)\n        }\n\n        log('info', 'Uib:ioSetup:stdMsgFromServer', `Channel '${this._ioChannels.server}'. Received msg #${this.msgsReceived}.`, receivedMsg)()\n\n        // ! NOTE: Don't try to handle specialist messages here. See _msgRcvdEvents.\n    } // -- End of websocket receive DATA msg from Node-RED -- //\n\n    /** Process msg._uib.command - Remember to update #extCommands with new allowed commands\n     * @param {object} msg Msg from Node-RED containing a msg._uib object\n     */\n    _uibCommand(msg) {\n        if (!msg._uib || !msg._uib.command) {\n            log('error', 'uibuilder:_uibCommand', 'Invalid command message received', { msg })()\n            msg.payload = msg.error = 'Invalid command message received'\n            this.send(msg)\n            return\n        }\n        const cmd = msg._uib.command\n        // Disallowed command request outputs error and ignores the msg (NB: Case must match)\n        if (!this.#extCommands.includes(cmd.trim())) {\n            log('error', 'Uib:_uibCommand', `Command '${cmd} is not allowed to be called externally`)()\n            return\n        }\n        const prop = msg._uib.prop\n        const value = msg._uib.value\n        const quiet = msg._uib.quiet ?? false\n        let response, info\n\n        // Don't forget to update `#extCommands`, `docs/client-docs/control-from-node-red.md` & `functions.md`\n        switch (cmd) {\n            case 'elementIsVisible': {\n                response = this.elementIsVisible(prop)\n                // info = `Element \"${prop}\" ${response ? 'is visible' : 'is not visible'}`\n                break\n            }\n\n            case 'elementExists': {\n                response = this.elementExists(prop, false)\n                info = `Element \"${prop}\" ${response ? 'exists' : 'does not exist'}`\n                break\n            }\n\n            case 'get': {\n                response = this.get(prop)\n                break\n            }\n\n            case 'getManagedVarList': {\n                if (prop === 'full') response = this.getManagedVarList()\n                else response = Object.values(this.getManagedVarList())\n                break\n            }\n\n            case 'getWatchedVars': {\n                if (prop === 'full') response = this.getWatchedVars()\n                else response = Object.values(this.getWatchedVars())\n                break\n            }\n\n            case 'htmlSend': {\n                response = this.htmlSend('', false)\n                break\n            }\n\n            case 'include': {\n                // include is async\n                response = _ui.include(prop, value)\n                break\n            }\n\n            case 'navigate': {\n                let newUrl\n                if (prop) newUrl = prop\n                else if (value) newUrl = value\n                response = this.navigate(newUrl)\n                break\n            }\n\n            case 'scrollTo': {\n                response = this.scrollTo(prop, value)\n                break\n            }\n\n            case 'set': {\n                let store = false\n                let autoload = false\n                if (msg._uib.options && msg._uib.options.store) {\n                    if (msg._uib.options.store === true) store = true\n                    if (msg._uib.options.autoload === true) autoload = true\n                }\n                response = this.set(prop, value, store, autoload)\n                break\n            }\n\n            case 'showMsg': {\n                response = this.showMsg(value, prop)\n                break\n            }\n\n            case 'showStatus': {\n                response = this.showStatus(value, prop)\n                break\n            }\n\n            case 'uiGet': {\n                response = _ui.uiGet(prop, value)\n                break\n            }\n\n            case 'uiWatch': {\n                response = this.uiWatch(prop)\n                break\n            }\n\n            case 'watchUrlHash': {\n                response = this.watchUrlHash(prop)\n                break\n            }\n\n            default: {\n                log('warning', 'Uib:_uibCommand', `Command '${cmd}' not yet implemented`)()\n                break\n            }\n        }\n\n        if (quiet !== true) {\n            if (response === undefined) {\n                response = `'${prop}' is undefined`\n            }\n            if (Object(response).constructor === Promise) {\n                // response = `'${cmd} ${prop}' submitted. Cmd is async, no response available`\n                response\n                    .then( (/** @type {any} */ data) => {\n                        msg.payload = msg._uib.response = data\n                        msg.info = msg._uib.info = info\n                        if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                        this.send(msg)\n                        return true\n                    })\n                    .catch( err => {\n                        log(0, 'Uib:_uibCommand', 'Error: ', err)()\n                    })\n            } else {\n                msg.payload = msg._uib.response = response\n                msg.info = msg._uib.info = info\n                if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                this.send(msg)\n            }\n        }\n    } // --- end of _uibCommand ---\n\n    /** Send log text to uibuilder's beacon endpoint (works even if socket.io not connected)\n     * @param {string} txtToSend Text string to send\n     * @param {string|undefined} logLevel Log level to use. If not supplied, will default to debug\n     */\n    beaconLog(txtToSend, logLevel) {\n        if (!logLevel) logLevel = 'debug'\n        navigator.sendBeacon('./_clientLog', `${logLevel}::${txtToSend}`)\n    }\n\n    /** Easily send the entire DOM/HTML msg back to Node-RED\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     * @param {boolean} [send] If true (default) directly send response to Node-RED. Is false when calling from Node-RED as a command.\n     * @returns {string} The HTML as a string\n     */\n    htmlSend(originator = '', send = true) {\n        const out = `<!doctype html>\\n${document.documentElement.outerHTML}`\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            payload: out,\n            length: out.length,\n            topic: this.topic,\n        }\n\n        log('trace', 'Uib:htmlSend', 'Sending full HTML to Node-RED', msg)()\n\n        if (send === true) this._send(msg, this._ioChannels.client, originator)\n        return out\n    }\n\n    /** Send log info back to Node-RED over uibuilder's websocket control output (Port #2)\n     * @param {...*} arguments All arguments passed to the function are added to the msg.payload\n     */\n    logToServer() {\n        this.sendCtrl({\n            uibuilderCtrl: 'client log message',\n            payload: arguments,\n            // \"version\":\"6.1.0-iife.min\",\n            _socketId: this._socket.id,\n            // \"ip\":\"::1\",\n            clientId: this.clientId,\n            tabId: this.tabId,\n            // \"url\":\"esp-test\",\n            pageName: this.pageName,\n            connections: this.connectedNum,\n            lastNavType: this.lastNavType,\n        })\n    }\n\n    /** Easily send a msg back to Node-RED on a DOM event\n     * @example In plain HTML/JavaScript\n     *    `<button id=\"button1\" name=\"button 1\" data-fred=\"jim\"></button>`\n     *    $('#button1').onclick = (evt) => {\n     *      uibuilder.eventSend(evt)\n     *    }\n     * @example\n     * In VueJS: `<b-button id=\"myButton1\" @click=\"doEvent\" data-something=\"hello\"></b-button>`\n     * In VueJS methods: `doEvent: uibuilder.eventSend,`\n     *\n     * All `data-` attributes will be passed back to Node-RED,\n     *    use them instead of arguments in the click function.\n     *    All target._ui custom properties are also passed back to Node-RED.\n     *\n     * @param {MouseEvent|any} domevent DOM Event object\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    eventSend(domevent, originator = '') { // eslint-disable-line sonarjs/cognitive-complexity\n        // @ts-ignore Handle case where vue messes up `this`\n        if ( this.$attrs ) {\n            log('error', 'Uib:eventSend', '`this` has been usurped by VueJS. Make sure that you wrap the call in a function: `doEvent: function (event) { uibuilder.eventSend(event) },`' )()\n            return\n        }\n        if (!domevent && !event) {\n            log('warn', 'Uib:eventSend', 'Neither the domevent nor the hidden event properties are set. You probably called this function directly rather than applying to an on click event.' )()\n            return\n        }\n        // Handle no argument, e.g. <button onClick=\"uibuilder.eventSend()\"> - event is a hidden variable when fn used in addEventListener\n        if (!domevent || !domevent.constructor) domevent = event\n\n        // The argument must be a DOM event\n        if ((!domevent.constructor.name.endsWith('Event')) || (!domevent.currentTarget)) {\n            log('warn', 'Uib:eventSend', `ARGUMENT NOT A DOM EVENT - use data attributes not function arguments to pass data. Arg Type: ${domevent.constructor.name}`, domevent)()\n            return\n        }\n\n        // Prevent default event action\n        domevent.preventDefault()\n\n        // The target element\n        const target = domevent.currentTarget\n\n        // Get target properties - only shows custom props not element default ones\n        const props = {}\n        Object.keys(target).forEach( key => {\n            if (key.startsWith('_')) return // Exclude private\n            props[key] = target[key]\n        })\n\n        // Attempt to get target attributs - can fail for certain target types\n        const ignoreAttribs = ['class', 'id', 'name']\n        let attribs\n        try {\n            attribs = Object.assign({},\n                ...Array.from(target.attributes,\n                    ( { name, value } ) => {\n                        if ( !ignoreAttribs.includes(name) ) {\n                            return ({ [name]: value })\n                        }\n                        return undefined\n                    }\n                )\n            )\n        } catch (e) {}\n\n        // If target embedded in a form, include the form data\n        let form\n        const frmVals = []\n        if ( target.form ) {\n            form = {}\n            form.valid = target.form.checkValidity()\n            Object.values(target.form).forEach( (frmEl, i) => {\n                const id = frmEl.id !== '' ? frmEl.id : (frmEl.name !== '' ? frmEl.name : `${i}-${frmEl.type}`)\n\n                // We must have both an element id (we may have forced one above) AND\n                // the element type MUST be not undefined - to allow for the extra properties added by frameworks such as Svelte\n                if (id !== '' && frmEl.type) {\n                    // Stupid HTML doesn't use value attrib for checkboxes. So override if value is set to default\n                    if ('checked' in frmEl && frmEl.value === 'on') frmEl.value = frmEl.checked.toString()\n\n                    frmVals.push( { key: id, val: frmEl.value } ) // simplified for addition to msg.payload\n\n                    form[id] = {\n                        'id': frmEl.id,\n                        'name': frmEl.name,\n                        'value': frmEl.value,\n                        'valid': frmEl.checkValidity(),\n                        'type': frmEl.type,\n                    }\n\n                    if (form[id].valid === false) {\n                        const v = frmEl.validity\n                        form[id].validity = {\n                            badInput: v.badInput === true ? v.badInput : undefined,\n                            customError: v.customError === true ? v.customError : undefined,\n                            patternMismatch: v.patternMismatch === true ? v.patternMismatch : undefined,\n                            rangeOverflow: v.rangeOverflow === true ? v.rangeOverflow : undefined,\n                            rangeUnderflow: v.rangeUnderflow === true ? v.rangeUnderflow : undefined,\n                            stepMismatch: v.stepMismatch === true ? v.stepMismatch : undefined,\n                            tooLong: v.tooLong === true ? v.tooLong : undefined,\n                            tooShort: v.tooShort === true ? v.tooShort : undefined,\n                            typeMismatch: v.typeMismatch === true ? v.typeMismatch : undefined,\n                            valueMissing: v.valueMissing === true ? v.valueMissing : undefined,\n                        }\n                    }\n\n                    if (frmEl.dataset) form[id].data = frmEl.dataset\n                }\n            })\n        }\n\n        // Check for CSS Classes\n        let classes\n        try {\n            classes = Array.from(target.classList)\n        } catch (e) {}\n\n        // Each `data-xxxx` attribute is added as a property\n        let payload = { ...target.dataset }\n\n        // Handle Notification events\n        let nprops\n        if ( Object.prototype.toString.call(target) === '[object Notification]') {\n            // Fixed payload for convenience\n            payload = `notification-${target.userAction}`\n            // Capture the notification properties\n            nprops = {\n                // userAction: target.userAction, // uib custom prop: click, close or error\n                actions: target.actions,\n                badge: target.badge,\n                body: target.body,\n                data: target.data,\n                dir: target.dir,\n                icon: target.icon,\n                image: target.image,\n                lang: target.lang,\n                renotify: target.renotify,\n                requireInteraction: target.requireInteraction,\n                silent: target.silent,\n                tag: target.tag,\n                timestamp: target.timestamp,\n                title: target.title,\n                vibrate: target.vibrate,\n            }\n        }\n        // console.log(Object.prototype.toString.call(target))\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            // - this may be an empty Object if no data attributes defined\n            payload: payload,\n\n            _ui: {\n                type: 'eventSend',\n                id: target.id !== '' ? target.id : undefined,\n                name: target.name !== '' ? target.name : undefined,\n                slotText: target.textContent ? target.textContent.substring(0, 255) : undefined,\n\n                form: form,\n                props: props,\n                attribs: attribs,\n                classes: classes,\n\n                notification: nprops,\n\n                event: domevent.type,\n                altKey: domevent.altKey,\n                ctrlKey: domevent.ctrlKey,\n                shiftKey: domevent.shiftKey,\n                metaKey: domevent.metaKey,\n\n                pointerType: domevent.pointerType,\n                nodeName: target.nodeName,\n\n                clientId: this.clientId,\n                pageName: this.pageName,\n                tabId: this.tabId,\n            }\n        }\n\n        if (frmVals.length > 0) {\n            frmVals.forEach( entry => {\n                msg.payload[entry.key] = entry.val\n            })\n        }\n\n        if (domevent.type === 'change') {\n            // Checkboxes don't have a value!!\n            msg._ui.newValue = msg.payload.value = 'checked' in target ? target.checked : domevent.target.value\n        }\n\n        log('trace', 'Uib:eventSend', 'Sending msg to Node-RED', msg)()\n        if (target.dataset && target.dataset.length === 0) log('warn', 'Uib:eventSend', 'No payload in msg. data-* attributes should be used.')()\n\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Send a standard message to NR\n     * @example uibuilder.send({payload:'Hello'})\n     * @param {object} msg Message to send\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    send(msg, originator = '') {\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    // ! TODO: Rooms do not auto-reconnect. Add tracking and update _onConnect\n    // ! TODO: Add receipt handler on joining a room.\n\n    // NOTE: Rooms only understood by server not client so we have to use custom emits\n    //       They do not auto-reconnect\n\n    /** Send a msg to a pre-defined Socket.IO room\n     * @link https://socket.io/docs/v4/rooms/\n     * @param {string} room Name of a Socket.IO pre-defined room.\n     * @param {*} msg Message to send\n     */\n    sendRoom(room, msg) {\n        this._socket.emit('uib-room-send', room, msg )\n    }\n\n    joinRoom(room) {\n        this._socket.emit('uib-room-join', room)\n    }\n\n    leaveRoom(room) {\n        this._socket.emit('uib-room-leave', room)\n    }\n\n    /** Send a control msg to NR\n     * @param {object} msg Message to send\n     */\n    sendCtrl(msg) {\n        this._send(msg, this._ioChannels.control)\n    }\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Socket.IO -------- //\n\n    /** Return the Socket.IO namespace\n     * The cookie method is the most reliable but this falls back to trying to work it\n     * out from the URL if cookies not available. That won't work if page is in a sub-folder.\n     * since 2017-10-21 Improve method to cope with more complex paths - thanks to Steve Rickus @shrickus\n     * since 2017-11-10 v1.0.1 Check cookie first then url. cookie works even if the path is more complex (e.g. sub-folder)\n     * since 2020-01-25 Removed httpRoot from namespace to prevent proxy induced errors\n     * @returns {string} Socket.IO namespace\n     */\n    _getIOnamespace() {\n\n        let ioNamespace\n\n        /** Try getting the namespace cookie. */\n        ioNamespace = this.cookies['uibuilder-namespace']\n\n        // if it wasn't available, try using the current url path\n        if (ioNamespace === undefined || ioNamespace === '') {\n            // split url path & eliminate any blank elements, and trailing or double slashes\n            const u = window.location.pathname.split('/')\n                .filter(function (t) { return t.trim() !== '' })\n\n            /** since v2.0.5 Extra check for 0 length, Issue #73. since 2017-11-06 If the last element of the path is an .html file name, remove it */\n            if (u.length > 0 && (u[u.length - 1].endsWith('.html'))) u.pop()\n\n            // Get the last part of the url path, this MUST match the namespace in uibuilder\n            ioNamespace = u.pop()\n\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via url path: ${ioNamespace}`)()\n        } else {\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via cookie: ${ioNamespace}`)()\n        }\n\n        this.url = ioNamespace\n        // Namespace HAS to start with a /\n        ioNamespace = '/' + ioNamespace\n\n        log('trace', 'uibuilder.module.js:getIOnamespace', `Final Socket.IO namespace: ${ioNamespace}`)()\n\n        return ioNamespace\n    } // --- End of set IO namespace --- //\n\n    /** Function used to check whether Socket.IO is connected to the server, reconnect if not (recursive)\n     * @param {number} [delay] Initial delay before checking (ms). Default=2000ms\n     * @param {number} [factor] Multiplication factor for subsequent checks (delay*factor). Default=1.5\n     * @param {number} [depth] Recursion depth\n     * @returns {boolean|undefined} Whether or not Socket.IO is connected to uibuilder in Node-RED\n     */\n    _checkConnect(delay, factor, depth = 1) {\n        if ( navigator.onLine === false ) return // Don't bother if we know we are offline\n\n        if (!delay) delay = this.retryMs\n        if (!factor) factor = this.retryFactor\n\n        log('trace', 'Uib:checkConnect', `Checking connection. Connected: ${this._socket.connected}. Timer: ${this.#timerid}. Depth: ${depth}. Delay: ${delay}. Factor: ${factor}`, this._socket)()\n\n        // If we are connected ...\n        if (this._socket.connected === true) {\n            // Clear the setTimeout\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this.set('ioConnected', true)\n            this.set('socketError', null)\n            return true\n        }\n\n        // ... we aren't connected so:\n        this.set('ioConnected', false)\n\n        // we only want one running at a time\n        if (this.#timerid) window.clearTimeout(this.#timerid)\n\n        // Create the new timer\n        this.#timerid = window.setTimeout(() => {\n            log('warn', 'Uib:checkConnect:setTimeout', `Socket.IO reconnection attempt. Current delay: ${delay}. Depth: ${depth}`)()\n\n            // this is necessary sometimes when the socket fails to connect on startup\n            this._socket.disconnect()\n\n            // Try to reconnect\n            this._socket.connect()\n\n            // don't need to check whether we have connected as the timer will have been cleared if we have\n            this.#timerid = null\n\n            // @ts-ignore Create new timer for next time round with extended delay\n            this._checkConnect(delay * factor, factor, depth++)\n        }, delay)\n\n        return false\n    } // --- End of checkConnect Fn--- //\n\n    // See message handling section for msg receipt handlers\n\n    /** Called by _ioSetup when Socket.IO connects to Node-RED */\n    _onConnect() {\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n        log('info', 'Uib:ioSetup', `\u2705 SOCKET CONNECTED. Connection count: ${this.connectedNum}, Is a Recovery?: ${this._socket.recovered}. \\nNamespace: ${this.ioNamespace}`)()\n        this._dispatchCustomEvent('uibuilder:socket:connected', { 'numConnections': this.connectedNum, 'isRecovery': this._socket.recovered })\n\n        this._checkConnect() // resets any reconnection timers & sets connected flag\n    }\n\n    /** Called by _ioSetup when Socket.IO disconnects from Node-RED\n     * @param {string} reason Disconnection title\n     */\n    _onDisconnect(reason) {\n        // reason === 'io server disconnect' - redeploy of Node instance\n        // reason === 'transport close' - Node-RED terminating\n        // reason === 'ping timeout' - didn't receive a pong response?\n        log('info', 'Uib:ioSetup:socket-disconnect', `\u26D4 Socket Disconnected. Reason: ${reason}`)()\n\n        this._dispatchCustomEvent('uibuilder:socket:disconnected', reason)\n\n        /** A workaround for SIO's failure to reconnect after a disconnection */\n        this._checkConnect()\n    }\n\n    /** Setup Socket.io\n     * since v2.0.0-beta2 Moved to a function and called by the user (uibuilder.start()) so that namespace & path can be passed manually if needed\n     * @returns {boolean} Attaches socket.io manager to self._socket and updates self.ioNamespace & self.ioPath as needed\n     */\n    _ioSetup() {\n\n        // Just a notification, actual load is done outside the class (see start of file)\n        if (io === undefined) {\n            log('error', 'Uib:ioSetup', 'Socket.IO client not loaded, Node-RED comms will not work')()\n            return false\n        }\n\n        // If socket is already set up, close it and remove all of the listeners\n        if (this._socket) {\n            log('trace', 'Uib:ioSetup', 'Removing listeners in preparation for redoing Socket.IO connections')()\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this._socket.close()\n            this._socket.offAny()\n            this._socket = undefined\n            this.set('ioConnected', false)\n        }\n\n        // Update the URL path to make sure we have the right one\n        this.socketOptions.path = this.ioPath\n\n        // NOTE: this._socket.auth is now set by callback and so automatically updated for each client (re)connection. No need to set here\n\n        // Create the socket - make sure client uses Socket.IO version from the uibuilder module (using path)\n        log('trace', 'Uib:ioSetup', `About to create IO object. Transports: [${this.socketOptions.transports.join(', ')}]`)()\n        this._socket = io(this.ioNamespace, this.socketOptions)\n\n        this._connectGlobal()\n\n        /** When the socket is connected - set ioConnected flag and reset connect timer  */\n        this._socket.on('connect', this._onConnect.bind(this))\n\n        // RECEIVE a STANDARD, non-control msg from Node-RED server\n        this._socket.on(this._ioChannels.server, this._stdMsgFromServer.bind(this))\n\n        // RECEIVE a CONTROL msg from Node-RED server - see also sendCtrl()\n        this._socket.on(this._ioChannels.control, this._ctrlMsgFromServer.bind(this))\n\n        // When the socket is disconnected ..............\n        this._socket.on('disconnect', this._onDisconnect.bind(this))\n\n        // Socket.io connection error - probably the wrong ioPath - or client is offline\n        this._socket.on('connect_error', (err) => {\n            if ( navigator.onLine === false ) return // Don't bother with an error if we know we are offline\n            log('error', 'Uib:ioSetup:connect_error', `\u274C Socket.IO Connect Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket connect error processing ---\n\n        // Socket.io error - from the server (socket.use middleware triggered an error response)\n        this._socket.on('error', (err) => {\n            log('error', 'Uib:ioSetup:error', `\u274C Socket.IO Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket error processing ---\n\n        // Ensure we are connected, retry if not\n        this._checkConnect()\n\n        return true\n\n        /* We really don't need these, just for interest\n            self._socket.io.on('packet', function onPacket(data){\n                // we get one of these for each REAL msg (not ping/pong)\n                console.debug('PACKET', data)\n            })\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n                //console.dir(self._socket)\n            }) // --- End of socket pong processing ---\n            self._socket.io.on('packet', function(data){\n                // We get one of these for actual messages, not ping/pong\n                console.debug('PACKET', data)\n            })\n            self._socket.on('connect_timeout', function(timeout) {\n                console.debug('SOCKET CONNECT TIMEOUT - Namespace: ' + ioNamespace + ', Timeout: ' + timeout)\n            }) // --- End of socket connect timeout processing ---\n            self._socket.on('reconnect', function(attemptNum) {\n                console.debug('SOCKET RECONNECTED - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect processing ---\n            self._socket.on('reconnect_attempt', function(attemptNum) {\n                console.debug('SOCKET RECONNECT ATTEMPT - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect_attempt processing ---\n            self._socket.on('reconnecting', function(attemptNum) {\n                console.debug('SOCKET RECONNECTING - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnecting processing ---\n            self._socket.on('reconnect_error', function(err) {\n                console.debug('SOCKET RECONNECT ERROR - Namespace: ' + ioNamespace + ', Reason: ' + err.message)\n                //console.dir(err)\n            }) // --- End of socket reconnect_error processing ---\n            self._socket.on('reconnect_failed', function() {\n                console.debug('SOCKET RECONNECT FAILED - Namespace: ' + ioNamespace)\n            }) // --- End of socket reconnect_failed processing ---\n            self._socket.on('ping', function() {\n                console.debug('SOCKET PING')\n            }) // --- End of socket ping processing ---\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n            }) // --- End of socket pong processing ---\n            */\n    } // ---- End of ioSetup ---- //\n\n    /** Connect to global namespace & create global listener that updates the `globalMsg` var */\n    _connectGlobal() {\n        this._socketGlobal = io('/', this.socketOptions)\n        this._socketGlobal.onAny( (...args) => {\n            this.set('globalMsg', args.slice(0, -1))\n        })\n    }\n\n    /** Manually (re)connect socket.io */\n    connect() {\n        // ? Should I use this._checkConnect()?\n        this._socket.connect()\n    }\n\n    /** Manually disconnect socket.io and stop any auto-reconnect timer */\n    disconnect() {\n        this._socket.disconnect()\n        // As this is a manual disconnect, stop any reconnect timers\n        if (this.#timerid) window.clearTimeout(this.#timerid)\n    }\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Class construction & startup method -------- //\n\n    constructor() {\n        log('trace', 'Uib:constructor', 'Starting')()\n\n        // Track whether the client is online or offline\n        window.addEventListener('offline', (e) => {\n            this.set('online', false)\n            this.set('ioConnected', false)\n            log('warn', 'Browser', 'DISCONNECTED from network')()\n        })\n        window.addEventListener('online', (e) => {\n            this.set('online', true)\n            log('warn', 'Browser', 'Reconnected to network')()\n            this._checkConnect()\n        })\n\n        document.cookie.split(';').forEach((c) => {\n            const splitC = c.split('=')\n            this.cookies[splitC[0].trim()] = splitC[1]\n        })\n\n        /** Client ID set by uibuilder - lasts until browser profile is closed, applies to all tabs */\n        this.set('clientId', this.cookies['uibuilder-client-id'])\n        log('trace', 'Uib:constructor', 'Client ID: ', this.clientId)()\n\n        /** Tab ID - lasts while the tab is open (even if reloaded)\n         * WARNING: Duplicating a tab retains the same tabId\n         */\n        this.set('tabId', window.sessionStorage.getItem('tabId'))\n        if (!this.tabId) {\n            this.set('tabId', `t${Math.floor(Math.random() * 1000000)}`)\n            window.sessionStorage.setItem('tabId', this.tabId)\n        }\n\n        // document.addEventListener('pagehide', (event) => {\n        //     // console.log(`pagehide. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pagehide. From Cache?: ${event.persisted}`)\n        // })\n        // document.addEventListener('pageshow', (event) => {\n        //     // console.log(`pageshow. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pageshow. From Cache?: ${event.persisted}`)\n        // })\n        document.addEventListener('load', () => {\n            this.set('isVisible', true)\n        })\n        document.addEventListener('visibilitychange', () => {\n            // hidden=unload, minimise. visible=un-minimise (not fired on load)\n            this.set('isVisible', document.visibilityState === 'visible')\n            this.sendCtrl({ uibuilderCtrl: 'visibility', isVisible: this.isVisible })\n            // navigator.userActivation is experimental Chromium only\n            // console.log('visibilitychange', ':', `Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n            // navigator.sendBeacon('./_clientLog', `${(new Date()).toISOString()} Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n        })\n\n        // Set a listener to update showStatus table if it is active\n        document.addEventListener('uibuilder:propertyChanged', (event) => {\n            if (!this.#isShowStatus) return\n\n            // @ts-ignore\n            if (event.detail.prop in this.#showStatus) {\n                // @ts-ignore\n                document.querySelector(`td[data-vartype=\"${event.detail.prop}\"]`).innerText = JSON.stringify(event.detail.value)\n            }\n        })\n\n        this.set('ioNamespace', this._getIOnamespace())\n\n        //#region - Try to make sure client uses Socket.IO client version from the uibuilder module (using cookie or path) @since v2.0.0 2019-02-24 allows for httpNodeRoot\n\n        /** httpNodeRoot (to set path) */\n        if ('uibuilder-webRoot' in this.cookies) {\n            this.set('httpNodeRoot', this.cookies['uibuilder-webRoot'])\n            log('trace', 'Uib:constructor', `httpNodeRoot set by cookie to \"${this.httpNodeRoot}\"`)()\n        } else {\n            // split current url path, eliminate any blank elements and trailing or double slashes\n            const fullPath = window.location.pathname.split('/').filter(function (t) { return t.trim() !== '' })\n            /** handle url includes file name - @since v2.0.5 Extra check for 0 length, Issue #73. */\n            if (fullPath.length > 0 && fullPath[fullPath.length - 1].endsWith('.html')) fullPath.pop()\n            fullPath.pop() // gives the last path section of the url\n            this.set('httpNodeRoot', `/${fullPath.join('/')}`)\n            log('trace', '[Uib:constructor]', `httpNodeRoot set by URL parsing to \"${this.httpNodeRoot}\". NOTE: This may fail for pages in sub-folders.`)()\n        }\n        this.set('ioPath', urlJoin(this.httpNodeRoot, Uib._meta.displayName, 'vendor', 'socket.io'))\n        log('trace', 'Uib:constructor', `ioPath: \"${this.ioPath}\"`)()\n\n        //#endregion\n\n        // Work out pageName\n        this.set('pageName', window.location.pathname.replace(`${this.ioNamespace}/`, ''))\n        if ( this.pageName.endsWith('/') ) this.set('pageName', `${this.pageName}index.html`)\n        if ( this.pageName === '' ) this.set('pageName', 'index.html')\n\n        // Attempt to restore autoload variables\n        try {\n            const autoloadVars = this.getStore('_uibAutoloadVars')\n            if (Object.keys(autoloadVars).length > 0) {\n                Object.keys(autoloadVars).forEach( (id) => {\n                    this.set(id, this.getStore(id))\n                })\n            }\n        } catch (e) {}\n\n        this._dispatchCustomEvent('uibuilder:constructorComplete')\n\n        log('trace', 'Uib:constructor', 'Ending')()\n    }\n\n    /** Start up Socket.IO comms and listeners\n     * This has to be done separately because if running from a web page in a sub-folder of src/dist, uibuilder cannot\n     * necessarily work out the correct ioPath to use.\n     * Also, if cookies aren't permitted in the browser, both ioPath and ioNamespace may need to be specified.\n     * @param {object} [options] The start options object.\n     * @returns {void}\n     */\n    start(options) {\n        log('trace', 'Uib:start', 'Starting')()\n\n        // Cancel the msg event handler if already present\n        if ( this.#MsgHandler ) this.cancelChange('msg', this.#MsgHandler)\n\n        if (this.started === true) {\n            log('info', 'Uib:start', 'Start function already called. Resetting Socket.IO and msg handler.')()\n        }\n\n        log('log', 'Uib:start', 'Cookies: ', this.cookies, `\\nClient ID: ${this.clientId}`)()\n        log('trace', 'Uib:start', 'ioNamespace: ', this.ioNamespace, `\\nioPath: ${this.ioPath}`)()\n\n        // Handle options\n        if (options) {\n            if (options.ioNamespace) this.set('ioNamespace', options.ioNamespace)\n            if (options.ioPath) this.set('ioPath', options.ioPath)\n            if (options.nopolling && this.socketOptions.transports[0] === 'polling') this.socketOptions.transports.shift()\n            // See below for handling of options.loadStylesheet\n        }\n\n        // Do we need to load styles?\n        if ( document.styleSheets.length >= 1 || (document.styleSheets.length === 1 && document.styleSheets[0].cssRules.length === 0) ) {\n            log('info', 'Uib:start', 'Styles already loaded so not loading uibuilder default styles.')()\n        } else {\n            if (options && options.loadStylesheet === false) log('info', 'Uib:start', 'No styles loaded & options.loadStylesheet === false.')()\n            else {\n                log('info', 'Uib:start', 'No styles loaded, loading uibuilder default styles.')()\n                this.loadStyleSrc(`${this.httpNodeRoot}/uibuilder/uib-brand.min.css`)\n            }\n        }\n\n        /** Handle specialist messages like reload and _ui -> Moved to _msgRcvdEvents */\n\n        // Track last browser navigation type: navigate, reload, back_forward, prerender\n        // TODO Needs more work - updates on navigation needed?\n        const [entry] = performance.getEntriesByType('navigation')\n        // @ts-ignore\n        this.set('lastNavType', entry.type)\n\n        // Start up (or restart) Socket.IO connections and listeners. Returns false if io not found\n        this.set('started', this._ioSetup())\n\n        if ( this.started === true ) {\n            log('trace', 'Uib:start', 'Start completed. Socket.IO client library loaded.')()\n        } else {\n            log('error', 'Uib:start', 'Start completed. ERROR: Socket.IO client library NOT LOADED.')()\n        }\n\n        // Watch for URL hash changes in case using a front-end router. Updates watched var `urlHash` and socket.io `auth.urlHash`\n        this._watchHashChanges()\n\n        // Check if Vue is present (used for dynamic UI processing)\n        if (window['Vue']) {\n            this.set('isVue', true)\n            try {\n                this.set('vueVersion', window['Vue'].version)\n            } catch (e) { }\n            log('trace', 'Uib:start', `VueJS is loaded. Version: ${this.vueVersion}`)()\n        } else {\n            log('trace', 'Uib:start', 'VueJS is not loaded.')()\n        }\n\n        // Check if DOMPurify library is loaded\n        if (window['DOMPurify']) {\n            this.set('purify', true)\n            log('trace', 'Uib:start', 'DOMPurify is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'DOMPurify is not loaded.')()\n        }\n        // Check if Markdown-IT library is loaded\n        if (window['markdownit']) {\n            this.set('markdown', true)\n            log('trace', 'Uib:start', 'Markdown-IT is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'Markdown-IT is not loaded.')()\n        }\n\n        // if (window['DOMPurify']) {\n        //     this.set('purify', true)\n        //     log('trace', 'Uib:start', 'DOMPurify is loaded.')\n        // } else {\n        //     log('trace', 'Uib:start', 'DOMPurify is not loaded.')\n        // }\n\n        // Set up msg listener for the optional showMsg\n        this.onChange('msg', (msg) => {\n            if (this.#isShowMsg === true) {\n                const eMsg = document.getElementById('uib_last_msg')\n                if (eMsg) eMsg.innerHTML = this.syntaxHighlight(msg)\n            }\n        })\n\n        this._dispatchCustomEvent('uibuilder:startComplete')\n    }\n\n    //#endregion -------- ------------ -------- //\n} // ==== End of Class Uib ====\n\n//#region --- Wrap up - get things started ---\n\n// Create an instance (we will only ever want one)\nconst uibuilder = new Uib()\n\n// Assign reference to the instance to the global `window` object\n// Only useful if loading via <script> tag - prefer loading via `import uibuilder from ...`\nif (!window['uibuilder']) {\n    window['uibuilder'] = uibuilder\n} else {\n    log('error', 'uibuilder.module.js', '`uibuilder` already assigned to window. Have you tried to load it more than once?')\n}\nif (!window['uib']) {\n    window['uib'] = uibuilder\n} else {\n    log('warn', 'uibuilder.module.js', '`uib` shortcut already assigned to window.')\n}\n\n// Assign `$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$`.\nif (!window['$']) {\n    /** @type {HTMLElement} */\n    window['$'] = window['uibuilder'].$ // document.querySelector.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` or `uib.$` instead.')\n}\n// Assign `$$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$$']) {\n    /** @type {HTMLElement} */\n    window['$$'] = window['uibuilder'].$$ // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` or `uib.$$` instead.')\n}\n\n// Assign `$ui` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$ui']) {\n    /** @type {HTMLElement} */\n    window['$ui'] = window['uibuilder'].$ui // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$ui`, it is already in use. Use `uibuilder.$ui` or `uib.$ui` instead.')\n}\n\n// Can import as `import uibuilder from ...` OR `import {uibuilder} from ...`\nexport { uibuilder }\nexport default uibuilder\n\n// Attempt to run start fn\nuibuilder.start()\n\n// Add the class as a new Custom Element to the window object\ncustomElements.define('uib-var', UibVar)\n\n//#endregion --- Wrap up ---\n\n// EOF\n", "const PACKET_TYPES = Object.create(null); // no Map = no polyfill\nPACKET_TYPES[\"open\"] = \"0\";\nPACKET_TYPES[\"close\"] = \"1\";\nPACKET_TYPES[\"ping\"] = \"2\";\nPACKET_TYPES[\"pong\"] = \"3\";\nPACKET_TYPES[\"message\"] = \"4\";\nPACKET_TYPES[\"upgrade\"] = \"5\";\nPACKET_TYPES[\"noop\"] = \"6\";\nconst PACKET_TYPES_REVERSE = Object.create(null);\nObject.keys(PACKET_TYPES).forEach(key => {\n    PACKET_TYPES_REVERSE[PACKET_TYPES[key]] = key;\n});\nconst ERROR_PACKET = { type: \"error\", data: \"parser error\" };\nexport { PACKET_TYPES, PACKET_TYPES_REVERSE, ERROR_PACKET };\n", "import { PACKET_TYPES } from \"./commons.js\";\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        Object.prototype.toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\n// ArrayBuffer.isView method is not defined in IE10\nconst isView = obj => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj && obj.buffer instanceof ArrayBuffer;\n};\nconst encodePacket = ({ type, data }, supportsBinary, callback) => {\n    if (withNativeBlob && data instanceof Blob) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(data, callback);\n        }\n    }\n    else if (withNativeArrayBuffer &&\n        (data instanceof ArrayBuffer || isView(data))) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(new Blob([data]), callback);\n        }\n    }\n    // plain string\n    return callback(PACKET_TYPES[type] + (data || \"\"));\n};\nconst encodeBlobAsBase64 = (data, callback) => {\n    const fileReader = new FileReader();\n    fileReader.onload = function () {\n        const content = fileReader.result.split(\",\")[1];\n        callback(\"b\" + (content || \"\"));\n    };\n    return fileReader.readAsDataURL(data);\n};\nfunction toArray(data) {\n    if (data instanceof Uint8Array) {\n        return data;\n    }\n    else if (data instanceof ArrayBuffer) {\n        return new Uint8Array(data);\n    }\n    else {\n        return new Uint8Array(data.buffer, data.byteOffset, data.byteLength);\n    }\n}\nlet TEXT_ENCODER;\nexport function encodePacketToBinary(packet, callback) {\n    if (withNativeBlob && packet.data instanceof Blob) {\n        return packet.data\n            .arrayBuffer()\n            .then(toArray)\n            .then(callback);\n    }\n    else if (withNativeArrayBuffer &&\n        (packet.data instanceof ArrayBuffer || isView(packet.data))) {\n        return callback(toArray(packet.data));\n    }\n    encodePacket(packet, false, encoded => {\n        if (!TEXT_ENCODER) {\n            TEXT_ENCODER = new TextEncoder();\n        }\n        callback(TEXT_ENCODER.encode(encoded));\n    });\n}\nexport { encodePacket };\n", "// imported from https://github.com/socketio/base64-arraybuffer\nconst chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';\n// Use a lookup table to find the index.\nconst lookup = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);\nfor (let i = 0; i < chars.length; i++) {\n    lookup[chars.charCodeAt(i)] = i;\n}\nexport const encode = (arraybuffer) => {\n    let bytes = new Uint8Array(arraybuffer), i, len = bytes.length, base64 = '';\n    for (i = 0; i < len; i += 3) {\n        base64 += chars[bytes[i] >> 2];\n        base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];\n        base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];\n        base64 += chars[bytes[i + 2] & 63];\n    }\n    if (len % 3 === 2) {\n        base64 = base64.substring(0, base64.length - 1) + '=';\n    }\n    else if (len % 3 === 1) {\n        base64 = base64.substring(0, base64.length - 2) + '==';\n    }\n    return base64;\n};\nexport const decode = (base64) => {\n    let bufferLength = base64.length * 0.75, len = base64.length, i, p = 0, encoded1, encoded2, encoded3, encoded4;\n    if (base64[base64.length - 1] === '=') {\n        bufferLength--;\n        if (base64[base64.length - 2] === '=') {\n            bufferLength--;\n        }\n    }\n    const arraybuffer = new ArrayBuffer(bufferLength), bytes = new Uint8Array(arraybuffer);\n    for (i = 0; i < len; i += 4) {\n        encoded1 = lookup[base64.charCodeAt(i)];\n        encoded2 = lookup[base64.charCodeAt(i + 1)];\n        encoded3 = lookup[base64.charCodeAt(i + 2)];\n        encoded4 = lookup[base64.charCodeAt(i + 3)];\n        bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n        bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n        bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n    }\n    return arraybuffer;\n};\n", "import { ERROR_PACKET, PACKET_TYPES_REVERSE } from \"./commons.js\";\nimport { decode } from \"./contrib/base64-arraybuffer.js\";\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nexport const decodePacket = (encodedPacket, binaryType) => {\n    if (typeof encodedPacket !== \"string\") {\n        return {\n            type: \"message\",\n            data: mapBinary(encodedPacket, binaryType)\n        };\n    }\n    const type = encodedPacket.charAt(0);\n    if (type === \"b\") {\n        return {\n            type: \"message\",\n            data: decodeBase64Packet(encodedPacket.substring(1), binaryType)\n        };\n    }\n    const packetType = PACKET_TYPES_REVERSE[type];\n    if (!packetType) {\n        return ERROR_PACKET;\n    }\n    return encodedPacket.length > 1\n        ? {\n            type: PACKET_TYPES_REVERSE[type],\n            data: encodedPacket.substring(1)\n        }\n        : {\n            type: PACKET_TYPES_REVERSE[type]\n        };\n};\nconst decodeBase64Packet = (data, binaryType) => {\n    if (withNativeArrayBuffer) {\n        const decoded = decode(data);\n        return mapBinary(decoded, binaryType);\n    }\n    else {\n        return { base64: true, data }; // fallback for old browsers\n    }\n};\nconst mapBinary = (data, binaryType) => {\n    switch (binaryType) {\n        case \"blob\":\n            if (data instanceof Blob) {\n                // from WebSocket + binaryType \"blob\"\n                return data;\n            }\n            else {\n                // from HTTP long-polling or WebTransport\n                return new Blob([data]);\n            }\n        case \"arraybuffer\":\n        default:\n            if (data instanceof ArrayBuffer) {\n                // from HTTP long-polling (base64) or WebSocket + binaryType \"arraybuffer\"\n                return data;\n            }\n            else {\n                // from WebTransport (Uint8Array)\n                return data.buffer;\n            }\n    }\n};\n", "import { encodePacket, encodePacketToBinary } from \"./encodePacket.js\";\nimport { decodePacket } from \"./decodePacket.js\";\nimport { ERROR_PACKET } from \"./commons.js\";\nconst SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text\nconst encodePayload = (packets, callback) => {\n    // some packets may be added to the array while encoding, so the initial length must be saved\n    const length = packets.length;\n    const encodedPackets = new Array(length);\n    let count = 0;\n    packets.forEach((packet, i) => {\n        // force base64 encoding for binary packets\n        encodePacket(packet, false, encodedPacket => {\n            encodedPackets[i] = encodedPacket;\n            if (++count === length) {\n                callback(encodedPackets.join(SEPARATOR));\n            }\n        });\n    });\n};\nconst decodePayload = (encodedPayload, binaryType) => {\n    const encodedPackets = encodedPayload.split(SEPARATOR);\n    const packets = [];\n    for (let i = 0; i < encodedPackets.length; i++) {\n        const decodedPacket = decodePacket(encodedPackets[i], binaryType);\n        packets.push(decodedPacket);\n        if (decodedPacket.type === \"error\") {\n            break;\n        }\n    }\n    return packets;\n};\nexport function createPacketEncoderStream() {\n    return new TransformStream({\n        transform(packet, controller) {\n            encodePacketToBinary(packet, encodedPacket => {\n                const payloadLength = encodedPacket.length;\n                let header;\n                // inspired by the WebSocket format: https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API/Writing_WebSocket_servers#decoding_payload_length\n                if (payloadLength < 126) {\n                    header = new Uint8Array(1);\n                    new DataView(header.buffer).setUint8(0, payloadLength);\n                }\n                else if (payloadLength < 65536) {\n                    header = new Uint8Array(3);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 126);\n                    view.setUint16(1, payloadLength);\n                }\n                else {\n                    header = new Uint8Array(9);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 127);\n                    view.setBigUint64(1, BigInt(payloadLength));\n                }\n                // first bit indicates whether the payload is plain text (0) or binary (1)\n                if (packet.data && typeof packet.data !== \"string\") {\n                    header[0] |= 0x80;\n                }\n                controller.enqueue(header);\n                controller.enqueue(encodedPacket);\n            });\n        }\n    });\n}\nlet TEXT_DECODER;\nfunction totalLength(chunks) {\n    return chunks.reduce((acc, chunk) => acc + chunk.length, 0);\n}\nfunction concatChunks(chunks, size) {\n    if (chunks[0].length === size) {\n        return chunks.shift();\n    }\n    const buffer = new Uint8Array(size);\n    let j = 0;\n    for (let i = 0; i < size; i++) {\n        buffer[i] = chunks[0][j++];\n        if (j === chunks[0].length) {\n            chunks.shift();\n            j = 0;\n        }\n    }\n    if (chunks.length && j < chunks[0].length) {\n        chunks[0] = chunks[0].slice(j);\n    }\n    return buffer;\n}\nexport function createPacketDecoderStream(maxPayload, binaryType) {\n    if (!TEXT_DECODER) {\n        TEXT_DECODER = new TextDecoder();\n    }\n    const chunks = [];\n    let state = 0 /* READ_HEADER */;\n    let expectedLength = -1;\n    let isBinary = false;\n    return new TransformStream({\n        transform(chunk, controller) {\n            chunks.push(chunk);\n            while (true) {\n                if (state === 0 /* READ_HEADER */) {\n                    if (totalLength(chunks) < 1) {\n                        break;\n                    }\n                    const header = concatChunks(chunks, 1);\n                    isBinary = (header[0] & 0x80) === 0x80;\n                    expectedLength = header[0] & 0x7f;\n                    if (expectedLength < 126) {\n                        state = 3 /* READ_PAYLOAD */;\n                    }\n                    else if (expectedLength === 126) {\n                        state = 1 /* READ_EXTENDED_LENGTH_16 */;\n                    }\n                    else {\n                        state = 2 /* READ_EXTENDED_LENGTH_64 */;\n                    }\n                }\n                else if (state === 1 /* READ_EXTENDED_LENGTH_16 */) {\n                    if (totalLength(chunks) < 2) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 2);\n                    expectedLength = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length).getUint16(0);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else if (state === 2 /* READ_EXTENDED_LENGTH_64 */) {\n                    if (totalLength(chunks) < 8) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 8);\n                    const view = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length);\n                    const n = view.getUint32(0);\n                    if (n > Math.pow(2, 53 - 32) - 1) {\n                        // the maximum safe integer in JavaScript is 2^53 - 1\n                        controller.enqueue(ERROR_PACKET);\n                        break;\n                    }\n                    expectedLength = n * Math.pow(2, 32) + view.getUint32(4);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else {\n                    if (totalLength(chunks) < expectedLength) {\n                        break;\n                    }\n                    const data = concatChunks(chunks, expectedLength);\n                    controller.enqueue(decodePacket(isBinary ? data : TEXT_DECODER.decode(data), binaryType));\n                    state = 0 /* READ_HEADER */;\n                }\n                if (expectedLength === 0 || expectedLength > maxPayload) {\n                    controller.enqueue(ERROR_PACKET);\n                    break;\n                }\n            }\n        }\n    });\n}\nexport const protocol = 4;\nexport { encodePacket, encodePayload, decodePacket, decodePayload };\n", "/**\n * Initialize a new `Emitter`.\n *\n * @api public\n */\n\nexport function Emitter(obj) {\n  if (obj) return mixin(obj);\n}\n\n/**\n * Mixin the emitter properties.\n *\n * @param {Object} obj\n * @return {Object}\n * @api private\n */\n\nfunction mixin(obj) {\n  for (var key in Emitter.prototype) {\n    obj[key] = Emitter.prototype[key];\n  }\n  return obj;\n}\n\n/**\n * Listen on the given `event` with `fn`.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.on =\nEmitter.prototype.addEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])\n    .push(fn);\n  return this;\n};\n\n/**\n * Adds an `event` listener that will be invoked a single\n * time then automatically removed.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.once = function(event, fn){\n  function on() {\n    this.off(event, on);\n    fn.apply(this, arguments);\n  }\n\n  on.fn = fn;\n  this.on(event, on);\n  return this;\n};\n\n/**\n * Remove the given callback for `event` or all\n * registered callbacks.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.off =\nEmitter.prototype.removeListener =\nEmitter.prototype.removeAllListeners =\nEmitter.prototype.removeEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n\n  // all\n  if (0 == arguments.length) {\n    this._callbacks = {};\n    return this;\n  }\n\n  // specific event\n  var callbacks = this._callbacks['$' + event];\n  if (!callbacks) return this;\n\n  // remove all handlers\n  if (1 == arguments.length) {\n    delete this._callbacks['$' + event];\n    return this;\n  }\n\n  // remove specific handler\n  var cb;\n  for (var i = 0; i < callbacks.length; i++) {\n    cb = callbacks[i];\n    if (cb === fn || cb.fn === fn) {\n      callbacks.splice(i, 1);\n      break;\n    }\n  }\n\n  // Remove event specific arrays for event types that no\n  // one is subscribed for to avoid memory leak.\n  if (callbacks.length === 0) {\n    delete this._callbacks['$' + event];\n  }\n\n  return this;\n};\n\n/**\n * Emit `event` with the given args.\n *\n * @param {String} event\n * @param {Mixed} ...\n * @return {Emitter}\n */\n\nEmitter.prototype.emit = function(event){\n  this._callbacks = this._callbacks || {};\n\n  var args = new Array(arguments.length - 1)\n    , callbacks = this._callbacks['$' + event];\n\n  for (var i = 1; i < arguments.length; i++) {\n    args[i - 1] = arguments[i];\n  }\n\n  if (callbacks) {\n    callbacks = callbacks.slice(0);\n    for (var i = 0, len = callbacks.length; i < len; ++i) {\n      callbacks[i].apply(this, args);\n    }\n  }\n\n  return this;\n};\n\n// alias used for reserved events (protected method)\nEmitter.prototype.emitReserved = Emitter.prototype.emit;\n\n/**\n * Return array of callbacks for `event`.\n *\n * @param {String} event\n * @return {Array}\n * @api public\n */\n\nEmitter.prototype.listeners = function(event){\n  this._callbacks = this._callbacks || {};\n  return this._callbacks['$' + event] || [];\n};\n\n/**\n * Check if this emitter has `event` handlers.\n *\n * @param {String} event\n * @return {Boolean}\n * @api public\n */\n\nEmitter.prototype.hasListeners = function(event){\n  return !! this.listeners(event).length;\n};\n", "export const globalThisShim = (() => {\n    if (typeof self !== \"undefined\") {\n        return self;\n    }\n    else if (typeof window !== \"undefined\") {\n        return window;\n    }\n    else {\n        return Function(\"return this\")();\n    }\n})();\n", "import { globalThisShim as globalThis } from \"./globalThis.js\";\nexport function pick(obj, ...attr) {\n    return attr.reduce((acc, k) => {\n        if (obj.hasOwnProperty(k)) {\n            acc[k] = obj[k];\n        }\n        return acc;\n    }, {});\n}\n// Keep a reference to the real timeout functions so they can be used when overridden\nconst NATIVE_SET_TIMEOUT = globalThis.setTimeout;\nconst NATIVE_CLEAR_TIMEOUT = globalThis.clearTimeout;\nexport function installTimerFunctions(obj, opts) {\n    if (opts.useNativeTimers) {\n        obj.setTimeoutFn = NATIVE_SET_TIMEOUT.bind(globalThis);\n        obj.clearTimeoutFn = NATIVE_CLEAR_TIMEOUT.bind(globalThis);\n    }\n    else {\n        obj.setTimeoutFn = globalThis.setTimeout.bind(globalThis);\n        obj.clearTimeoutFn = globalThis.clearTimeout.bind(globalThis);\n    }\n}\n// base64 encoded buffers are about 33% bigger (https://en.wikipedia.org/wiki/Base64)\nconst BASE64_OVERHEAD = 1.33;\n// we could also have used `new Blob([obj]).size`, but it isn't supported in IE9\nexport function byteLength(obj) {\n    if (typeof obj === \"string\") {\n        return utf8Length(obj);\n    }\n    // arraybuffer or blob\n    return Math.ceil((obj.byteLength || obj.size) * BASE64_OVERHEAD);\n}\nfunction utf8Length(str) {\n    let c = 0, length = 0;\n    for (let i = 0, l = str.length; i < l; i++) {\n        c = str.charCodeAt(i);\n        if (c < 0x80) {\n            length += 1;\n        }\n        else if (c < 0x800) {\n            length += 2;\n        }\n        else if (c < 0xd800 || c >= 0xe000) {\n            length += 3;\n        }\n        else {\n            i++;\n            length += 4;\n        }\n    }\n    return length;\n}\n", "// imported from https://github.com/galkn/querystring\n/**\n * Compiles a querystring\n * Returns string representation of the object\n *\n * @param {Object}\n * @api private\n */\nexport function encode(obj) {\n    let str = '';\n    for (let i in obj) {\n        if (obj.hasOwnProperty(i)) {\n            if (str.length)\n                str += '&';\n            str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);\n        }\n    }\n    return str;\n}\n/**\n * Parses a simple querystring into an object\n *\n * @param {String} qs\n * @api private\n */\nexport function decode(qs) {\n    let qry = {};\n    let pairs = qs.split('&');\n    for (let i = 0, l = pairs.length; i < l; i++) {\n        let pair = pairs[i].split('=');\n        qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);\n    }\n    return qry;\n}\n", "import { decodePacket } from \"engine.io-parser\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions } from \"./util.js\";\nimport { encode } from \"./contrib/parseqs.js\";\nexport class TransportError extends Error {\n    constructor(reason, description, context) {\n        super(reason);\n        this.description = description;\n        this.context = context;\n        this.type = \"TransportError\";\n    }\n}\nexport class Transport extends Emitter {\n    /**\n     * Transport abstract constructor.\n     *\n     * @param {Object} opts - options\n     * @protected\n     */\n    constructor(opts) {\n        super();\n        this.writable = false;\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.query = opts.query;\n        this.socket = opts.socket;\n    }\n    /**\n     * Emits an error.\n     *\n     * @param {String} reason\n     * @param description\n     * @param context - the error context\n     * @return {Transport} for chaining\n     * @protected\n     */\n    onError(reason, description, context) {\n        super.emitReserved(\"error\", new TransportError(reason, description, context));\n        return this;\n    }\n    /**\n     * Opens the transport.\n     */\n    open() {\n        this.readyState = \"opening\";\n        this.doOpen();\n        return this;\n    }\n    /**\n     * Closes the transport.\n     */\n    close() {\n        if (this.readyState === \"opening\" || this.readyState === \"open\") {\n            this.doClose();\n            this.onClose();\n        }\n        return this;\n    }\n    /**\n     * Sends multiple packets.\n     *\n     * @param {Array} packets\n     */\n    send(packets) {\n        if (this.readyState === \"open\") {\n            this.write(packets);\n        }\n        else {\n            // this might happen if the transport was silently closed in the beforeunload event handler\n        }\n    }\n    /**\n     * Called upon open\n     *\n     * @protected\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        this.writable = true;\n        super.emitReserved(\"open\");\n    }\n    /**\n     * Called with data.\n     *\n     * @param {String} data\n     * @protected\n     */\n    onData(data) {\n        const packet = decodePacket(data, this.socket.binaryType);\n        this.onPacket(packet);\n    }\n    /**\n     * Called with a decoded packet.\n     *\n     * @protected\n     */\n    onPacket(packet) {\n        super.emitReserved(\"packet\", packet);\n    }\n    /**\n     * Called upon close.\n     *\n     * @protected\n     */\n    onClose(details) {\n        this.readyState = \"closed\";\n        super.emitReserved(\"close\", details);\n    }\n    /**\n     * Pauses the transport, in order not to lose packets during an upgrade.\n     *\n     * @param onPause\n     */\n    pause(onPause) { }\n    createUri(schema, query = {}) {\n        return (schema +\n            \"://\" +\n            this._hostname() +\n            this._port() +\n            this.opts.path +\n            this._query(query));\n    }\n    _hostname() {\n        const hostname = this.opts.hostname;\n        return hostname.indexOf(\":\") === -1 ? hostname : \"[\" + hostname + \"]\";\n    }\n    _port() {\n        if (this.opts.port &&\n            ((this.opts.secure && Number(this.opts.port !== 443)) ||\n                (!this.opts.secure && Number(this.opts.port) !== 80))) {\n            return \":\" + this.opts.port;\n        }\n        else {\n            return \"\";\n        }\n    }\n    _query(query) {\n        const encodedQuery = encode(query);\n        return encodedQuery.length ? \"?\" + encodedQuery : \"\";\n    }\n}\n", "// imported from https://github.com/unshiftio/yeast\n'use strict';\nconst alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split(''), length = 64, map = {};\nlet seed = 0, i = 0, prev;\n/**\n * Return a string representing the specified number.\n *\n * @param {Number} num The number to convert.\n * @returns {String} The string representation of the number.\n * @api public\n */\nexport function encode(num) {\n    let encoded = '';\n    do {\n        encoded = alphabet[num % length] + encoded;\n        num = Math.floor(num / length);\n    } while (num > 0);\n    return encoded;\n}\n/**\n * Return the integer value specified by the given string.\n *\n * @param {String} str The string to convert.\n * @returns {Number} The integer value represented by the string.\n * @api public\n */\nexport function decode(str) {\n    let decoded = 0;\n    for (i = 0; i < str.length; i++) {\n        decoded = decoded * length + map[str.charAt(i)];\n    }\n    return decoded;\n}\n/**\n * Yeast: A tiny growing id generator.\n *\n * @returns {String} A unique id.\n * @api public\n */\nexport function yeast() {\n    const now = encode(+new Date());\n    if (now !== prev)\n        return seed = 0, prev = now;\n    return now + '.' + encode(seed++);\n}\n//\n// Map each character to its index.\n//\nfor (; i < length; i++)\n    map[alphabet[i]] = i;\n", "// imported from https://github.com/component/has-cors\nlet value = false;\ntry {\n    value = typeof XMLHttpRequest !== 'undefined' &&\n        'withCredentials' in new XMLHttpRequest();\n}\ncatch (err) {\n    // if XMLHttp support is disabled in IE then it will throw\n    // when trying to create\n}\nexport const hasCORS = value;\n", "// browser shim for xmlhttprequest module\nimport { hasCORS } from \"../contrib/has-cors.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nexport function XHR(opts) {\n    const xdomain = opts.xdomain;\n    // XMLHttpRequest can be disabled on IE\n    try {\n        if (\"undefined\" !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {\n            return new XMLHttpRequest();\n        }\n    }\n    catch (e) { }\n    if (!xdomain) {\n        try {\n            return new globalThis[[\"Active\"].concat(\"Object\").join(\"X\")](\"Microsoft.XMLHTTP\");\n        }\n        catch (e) { }\n    }\n}\nexport function createCookieJar() { }\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { encodePayload, decodePayload } from \"engine.io-parser\";\nimport { createCookieJar, XHR as XMLHttpRequest, } from \"./xmlhttprequest.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions, pick } from \"../util.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nfunction empty() { }\nconst hasXHR2 = (function () {\n    const xhr = new XMLHttpRequest({\n        xdomain: false,\n    });\n    return null != xhr.responseType;\n})();\nexport class Polling extends Transport {\n    /**\n     * XHR Polling constructor.\n     *\n     * @param {Object} opts\n     * @package\n     */\n    constructor(opts) {\n        super(opts);\n        this.polling = false;\n        if (typeof location !== \"undefined\") {\n            const isSSL = \"https:\" === location.protocol;\n            let port = location.port;\n            // some user agents have empty `location.port`\n            if (!port) {\n                port = isSSL ? \"443\" : \"80\";\n            }\n            this.xd =\n                (typeof location !== \"undefined\" &&\n                    opts.hostname !== location.hostname) ||\n                    port !== opts.port;\n        }\n        /**\n         * XHR supports binary\n         */\n        const forceBase64 = opts && opts.forceBase64;\n        this.supportsBinary = hasXHR2 && !forceBase64;\n        if (this.opts.withCredentials) {\n            this.cookieJar = createCookieJar();\n        }\n    }\n    get name() {\n        return \"polling\";\n    }\n    /**\n     * Opens the socket (triggers polling). We write a PING message to determine\n     * when the transport is open.\n     *\n     * @protected\n     */\n    doOpen() {\n        this.poll();\n    }\n    /**\n     * Pauses polling.\n     *\n     * @param {Function} onPause - callback upon buffers are flushed and transport is paused\n     * @package\n     */\n    pause(onPause) {\n        this.readyState = \"pausing\";\n        const pause = () => {\n            this.readyState = \"paused\";\n            onPause();\n        };\n        if (this.polling || !this.writable) {\n            let total = 0;\n            if (this.polling) {\n                total++;\n                this.once(\"pollComplete\", function () {\n                    --total || pause();\n                });\n            }\n            if (!this.writable) {\n                total++;\n                this.once(\"drain\", function () {\n                    --total || pause();\n                });\n            }\n        }\n        else {\n            pause();\n        }\n    }\n    /**\n     * Starts polling cycle.\n     *\n     * @private\n     */\n    poll() {\n        this.polling = true;\n        this.doPoll();\n        this.emitReserved(\"poll\");\n    }\n    /**\n     * Overloads onData to detect payloads.\n     *\n     * @protected\n     */\n    onData(data) {\n        const callback = (packet) => {\n            // if its the first message we consider the transport open\n            if (\"opening\" === this.readyState && packet.type === \"open\") {\n                this.onOpen();\n            }\n            // if its a close packet, we close the ongoing requests\n            if (\"close\" === packet.type) {\n                this.onClose({ description: \"transport closed by the server\" });\n                return false;\n            }\n            // otherwise bypass onData and handle the message\n            this.onPacket(packet);\n        };\n        // decode payload\n        decodePayload(data, this.socket.binaryType).forEach(callback);\n        // if an event did not trigger closing\n        if (\"closed\" !== this.readyState) {\n            // if we got data we're not polling\n            this.polling = false;\n            this.emitReserved(\"pollComplete\");\n            if (\"open\" === this.readyState) {\n                this.poll();\n            }\n            else {\n            }\n        }\n    }\n    /**\n     * For polling, send a close packet.\n     *\n     * @protected\n     */\n    doClose() {\n        const close = () => {\n            this.write([{ type: \"close\" }]);\n        };\n        if (\"open\" === this.readyState) {\n            close();\n        }\n        else {\n            // in case we're trying to close while\n            // handshaking is in progress (GH-164)\n            this.once(\"open\", close);\n        }\n    }\n    /**\n     * Writes a packets payload.\n     *\n     * @param {Array} packets - data packets\n     * @protected\n     */\n    write(packets) {\n        this.writable = false;\n        encodePayload(packets, (data) => {\n            this.doWrite(data, () => {\n                this.writable = true;\n                this.emitReserved(\"drain\");\n            });\n        });\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"https\" : \"http\";\n        const query = this.query || {};\n        // cache busting is forced\n        if (false !== this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        if (!this.supportsBinary && !query.sid) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Creates a request.\n     *\n     * @param {String} method\n     * @private\n     */\n    request(opts = {}) {\n        Object.assign(opts, { xd: this.xd, cookieJar: this.cookieJar }, this.opts);\n        return new Request(this.uri(), opts);\n    }\n    /**\n     * Sends data.\n     *\n     * @param {String} data to send.\n     * @param {Function} called upon flush.\n     * @private\n     */\n    doWrite(data, fn) {\n        const req = this.request({\n            method: \"POST\",\n            data: data,\n        });\n        req.on(\"success\", fn);\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr post error\", xhrStatus, context);\n        });\n    }\n    /**\n     * Starts a poll cycle.\n     *\n     * @private\n     */\n    doPoll() {\n        const req = this.request();\n        req.on(\"data\", this.onData.bind(this));\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr poll error\", xhrStatus, context);\n        });\n        this.pollXhr = req;\n    }\n}\nexport class Request extends Emitter {\n    /**\n     * Request constructor\n     *\n     * @param {Object} options\n     * @package\n     */\n    constructor(uri, opts) {\n        super();\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.method = opts.method || \"GET\";\n        this.uri = uri;\n        this.data = undefined !== opts.data ? opts.data : null;\n        this.create();\n    }\n    /**\n     * Creates the XHR object and sends the request.\n     *\n     * @private\n     */\n    create() {\n        var _a;\n        const opts = pick(this.opts, \"agent\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"autoUnref\");\n        opts.xdomain = !!this.opts.xd;\n        const xhr = (this.xhr = new XMLHttpRequest(opts));\n        try {\n            xhr.open(this.method, this.uri, true);\n            try {\n                if (this.opts.extraHeaders) {\n                    xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);\n                    for (let i in this.opts.extraHeaders) {\n                        if (this.opts.extraHeaders.hasOwnProperty(i)) {\n                            xhr.setRequestHeader(i, this.opts.extraHeaders[i]);\n                        }\n                    }\n                }\n            }\n            catch (e) { }\n            if (\"POST\" === this.method) {\n                try {\n                    xhr.setRequestHeader(\"Content-type\", \"text/plain;charset=UTF-8\");\n                }\n                catch (e) { }\n            }\n            try {\n                xhr.setRequestHeader(\"Accept\", \"*/*\");\n            }\n            catch (e) { }\n            (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.addCookies(xhr);\n            // ie6 check\n            if (\"withCredentials\" in xhr) {\n                xhr.withCredentials = this.opts.withCredentials;\n            }\n            if (this.opts.requestTimeout) {\n                xhr.timeout = this.opts.requestTimeout;\n            }\n            xhr.onreadystatechange = () => {\n                var _a;\n                if (xhr.readyState === 3) {\n                    (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.parseCookies(xhr);\n                }\n                if (4 !== xhr.readyState)\n                    return;\n                if (200 === xhr.status || 1223 === xhr.status) {\n                    this.onLoad();\n                }\n                else {\n                    // make sure the `error` event handler that's user-set\n                    // does not throw in the same tick and gets caught here\n                    this.setTimeoutFn(() => {\n                        this.onError(typeof xhr.status === \"number\" ? xhr.status : 0);\n                    }, 0);\n                }\n            };\n            xhr.send(this.data);\n        }\n        catch (e) {\n            // Need to defer since .create() is called directly from the constructor\n            // and thus the 'error' event can only be only bound *after* this exception\n            // occurs.  Therefore, also, we cannot throw here at all.\n            this.setTimeoutFn(() => {\n                this.onError(e);\n            }, 0);\n            return;\n        }\n        if (typeof document !== \"undefined\") {\n            this.index = Request.requestsCount++;\n            Request.requests[this.index] = this;\n        }\n    }\n    /**\n     * Called upon error.\n     *\n     * @private\n     */\n    onError(err) {\n        this.emitReserved(\"error\", err, this.xhr);\n        this.cleanup(true);\n    }\n    /**\n     * Cleans up house.\n     *\n     * @private\n     */\n    cleanup(fromError) {\n        if (\"undefined\" === typeof this.xhr || null === this.xhr) {\n            return;\n        }\n        this.xhr.onreadystatechange = empty;\n        if (fromError) {\n            try {\n                this.xhr.abort();\n            }\n            catch (e) { }\n        }\n        if (typeof document !== \"undefined\") {\n            delete Request.requests[this.index];\n        }\n        this.xhr = null;\n    }\n    /**\n     * Called upon load.\n     *\n     * @private\n     */\n    onLoad() {\n        const data = this.xhr.responseText;\n        if (data !== null) {\n            this.emitReserved(\"data\", data);\n            this.emitReserved(\"success\");\n            this.cleanup();\n        }\n    }\n    /**\n     * Aborts the request.\n     *\n     * @package\n     */\n    abort() {\n        this.cleanup();\n    }\n}\nRequest.requestsCount = 0;\nRequest.requests = {};\n/**\n * Aborts pending requests when unloading the window. This is needed to prevent\n * memory leaks (e.g. when using IE) and to ensure that no spurious error is\n * emitted.\n */\nif (typeof document !== \"undefined\") {\n    // @ts-ignore\n    if (typeof attachEvent === \"function\") {\n        // @ts-ignore\n        attachEvent(\"onunload\", unloadHandler);\n    }\n    else if (typeof addEventListener === \"function\") {\n        const terminationEvent = \"onpagehide\" in globalThis ? \"pagehide\" : \"unload\";\n        addEventListener(terminationEvent, unloadHandler, false);\n    }\n}\nfunction unloadHandler() {\n    for (let i in Request.requests) {\n        if (Request.requests.hasOwnProperty(i)) {\n            Request.requests[i].abort();\n        }\n    }\n}\n", "import { globalThisShim as globalThis } from \"../globalThis.js\";\nexport const nextTick = (() => {\n    const isPromiseAvailable = typeof Promise === \"function\" && typeof Promise.resolve === \"function\";\n    if (isPromiseAvailable) {\n        return (cb) => Promise.resolve().then(cb);\n    }\n    else {\n        return (cb, setTimeoutFn) => setTimeoutFn(cb, 0);\n    }\n})();\nexport const WebSocket = globalThis.WebSocket || globalThis.MozWebSocket;\nexport const usingBrowserWebSocket = true;\nexport const defaultBinaryType = \"arraybuffer\";\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { pick } from \"../util.js\";\nimport { nextTick, usingBrowserWebSocket, WebSocket, } from \"./websocket-constructor.js\";\nimport { encodePacket } from \"engine.io-parser\";\n// detect ReactNative environment\nconst isReactNative = typeof navigator !== \"undefined\" &&\n    typeof navigator.product === \"string\" &&\n    navigator.product.toLowerCase() === \"reactnative\";\nexport class WS extends Transport {\n    /**\n     * WebSocket transport constructor.\n     *\n     * @param {Object} opts - connection options\n     * @protected\n     */\n    constructor(opts) {\n        super(opts);\n        this.supportsBinary = !opts.forceBase64;\n    }\n    get name() {\n        return \"websocket\";\n    }\n    doOpen() {\n        if (!this.check()) {\n            // let probe timeout\n            return;\n        }\n        const uri = this.uri();\n        const protocols = this.opts.protocols;\n        // React Native only supports the 'headers' option, and will print a warning if anything else is passed\n        const opts = isReactNative\n            ? {}\n            : pick(this.opts, \"agent\", \"perMessageDeflate\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"localAddress\", \"protocolVersion\", \"origin\", \"maxPayload\", \"family\", \"checkServerIdentity\");\n        if (this.opts.extraHeaders) {\n            opts.headers = this.opts.extraHeaders;\n        }\n        try {\n            this.ws =\n                usingBrowserWebSocket && !isReactNative\n                    ? protocols\n                        ? new WebSocket(uri, protocols)\n                        : new WebSocket(uri)\n                    : new WebSocket(uri, protocols, opts);\n        }\n        catch (err) {\n            return this.emitReserved(\"error\", err);\n        }\n        this.ws.binaryType = this.socket.binaryType;\n        this.addEventListeners();\n    }\n    /**\n     * Adds event listeners to the socket\n     *\n     * @private\n     */\n    addEventListeners() {\n        this.ws.onopen = () => {\n            if (this.opts.autoUnref) {\n                this.ws._socket.unref();\n            }\n            this.onOpen();\n        };\n        this.ws.onclose = (closeEvent) => this.onClose({\n            description: \"websocket connection closed\",\n            context: closeEvent,\n        });\n        this.ws.onmessage = (ev) => this.onData(ev.data);\n        this.ws.onerror = (e) => this.onError(\"websocket error\", e);\n    }\n    write(packets) {\n        this.writable = false;\n        // encodePacket efficient as it uses WS framing\n        // no need for encodePayload\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            encodePacket(packet, this.supportsBinary, (data) => {\n                // always create a new object (GH-437)\n                const opts = {};\n                if (!usingBrowserWebSocket) {\n                    if (packet.options) {\n                        opts.compress = packet.options.compress;\n                    }\n                    if (this.opts.perMessageDeflate) {\n                        const len = \n                        // @ts-ignore\n                        \"string\" === typeof data ? Buffer.byteLength(data) : data.length;\n                        if (len < this.opts.perMessageDeflate.threshold) {\n                            opts.compress = false;\n                        }\n                    }\n                }\n                // Sometimes the websocket has already been closed but the browser didn't\n                // have a chance of informing us about it yet, in that case send will\n                // throw an error\n                try {\n                    if (usingBrowserWebSocket) {\n                        // TypeError is thrown when passing the second argument on Safari\n                        this.ws.send(data);\n                    }\n                    else {\n                        this.ws.send(data, opts);\n                    }\n                }\n                catch (e) {\n                }\n                if (lastPacket) {\n                    // fake drain\n                    // defer to next tick to allow Socket to clear writeBuffer\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        if (typeof this.ws !== \"undefined\") {\n            this.ws.close();\n            this.ws = null;\n        }\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"wss\" : \"ws\";\n        const query = this.query || {};\n        // append timestamp to URI\n        if (this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        // communicate binary support capabilities\n        if (!this.supportsBinary) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Feature detection for WebSocket.\n     *\n     * @return {Boolean} whether this transport is available.\n     * @private\n     */\n    check() {\n        return !!WebSocket;\n    }\n}\n", "import { Transport } from \"../transport.js\";\nimport { nextTick } from \"./websocket-constructor.js\";\nimport { createPacketDecoderStream, createPacketEncoderStream, } from \"engine.io-parser\";\nexport class WT extends Transport {\n    get name() {\n        return \"webtransport\";\n    }\n    doOpen() {\n        // @ts-ignore\n        if (typeof WebTransport !== \"function\") {\n            return;\n        }\n        // @ts-ignore\n        this.transport = new WebTransport(this.createUri(\"https\"), this.opts.transportOptions[this.name]);\n        this.transport.closed\n            .then(() => {\n            this.onClose();\n        })\n            .catch((err) => {\n            this.onError(\"webtransport error\", err);\n        });\n        // note: we could have used async/await, but that would require some additional polyfills\n        this.transport.ready.then(() => {\n            this.transport.createBidirectionalStream().then((stream) => {\n                const decoderStream = createPacketDecoderStream(Number.MAX_SAFE_INTEGER, this.socket.binaryType);\n                const reader = stream.readable.pipeThrough(decoderStream).getReader();\n                const encoderStream = createPacketEncoderStream();\n                encoderStream.readable.pipeTo(stream.writable);\n                this.writer = encoderStream.writable.getWriter();\n                const read = () => {\n                    reader\n                        .read()\n                        .then(({ done, value }) => {\n                        if (done) {\n                            return;\n                        }\n                        this.onPacket(value);\n                        read();\n                    })\n                        .catch((err) => {\n                    });\n                };\n                read();\n                const packet = { type: \"open\" };\n                if (this.query.sid) {\n                    packet.data = `{\"sid\":\"${this.query.sid}\"}`;\n                }\n                this.writer.write(packet).then(() => this.onOpen());\n            });\n        });\n    }\n    write(packets) {\n        this.writable = false;\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            this.writer.write(packet).then(() => {\n                if (lastPacket) {\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        var _a;\n        (_a = this.transport) === null || _a === void 0 ? void 0 : _a.close();\n    }\n}\n", "import { Polling } from \"./polling.js\";\nimport { WS } from \"./websocket.js\";\nimport { WT } from \"./webtransport.js\";\nexport const transports = {\n    websocket: WS,\n    webtransport: WT,\n    polling: Polling,\n};\n", "// imported from https://github.com/galkn/parseuri\n/**\n * Parses a URI\n *\n * Note: we could also have used the built-in URL object, but it isn't supported on all platforms.\n *\n * See:\n * - https://developer.mozilla.org/en-US/docs/Web/API/URL\n * - https://caniuse.com/url\n * - https://www.rfc-editor.org/rfc/rfc3986#appendix-B\n *\n * History of the parse() method:\n * - first commit: https://github.com/socketio/socket.io-client/commit/4ee1d5d94b3906a9c052b459f1a818b15f38f91c\n * - export into its own module: https://github.com/socketio/engine.io-client/commit/de2c561e4564efeb78f1bdb1ba39ef81b2822cb3\n * - reimport: https://github.com/socketio/engine.io-client/commit/df32277c3f6d622eec5ed09f493cae3f3391d242\n *\n * @author Steven Levithan <stevenlevithan.com> (MIT license)\n * @api private\n */\nconst re = /^(?:(?![^:@\\/?#]+:[^:@\\/]*@)(http|https|ws|wss):\\/\\/)?((?:(([^:@\\/?#]*)(?::([^:@\\/?#]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\\/?#]*)(?::(\\d*))?)(((\\/(?:[^?#](?![^?#\\/]*\\.[^?#\\/.]+(?:[?#]|$)))*\\/?)?([^?#\\/]*))(?:\\?([^#]*))?(?:#(.*))?)/;\nconst parts = [\n    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'\n];\nexport function parse(str) {\n    if (str.length > 2000) {\n        throw \"URI too long\";\n    }\n    const src = str, b = str.indexOf('['), e = str.indexOf(']');\n    if (b != -1 && e != -1) {\n        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);\n    }\n    let m = re.exec(str || ''), uri = {}, i = 14;\n    while (i--) {\n        uri[parts[i]] = m[i] || '';\n    }\n    if (b != -1 && e != -1) {\n        uri.source = src;\n        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');\n        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');\n        uri.ipv6uri = true;\n    }\n    uri.pathNames = pathNames(uri, uri['path']);\n    uri.queryKey = queryKey(uri, uri['query']);\n    return uri;\n}\nfunction pathNames(obj, path) {\n    const regx = /\\/{2,9}/g, names = path.replace(regx, \"/\").split(\"/\");\n    if (path.slice(0, 1) == '/' || path.length === 0) {\n        names.splice(0, 1);\n    }\n    if (path.slice(-1) == '/') {\n        names.splice(names.length - 1, 1);\n    }\n    return names;\n}\nfunction queryKey(uri, query) {\n    const data = {};\n    query.replace(/(?:^|&)([^&=]*)=?([^&]*)/g, function ($0, $1, $2) {\n        if ($1) {\n            data[$1] = $2;\n        }\n    });\n    return data;\n}\n", "import { transports } from \"./transports/index.js\";\nimport { installTimerFunctions, byteLength } from \"./util.js\";\nimport { decode } from \"./contrib/parseqs.js\";\nimport { parse } from \"./contrib/parseuri.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { protocol } from \"engine.io-parser\";\nimport { defaultBinaryType } from \"./transports/websocket-constructor.js\";\nexport class Socket extends Emitter {\n    /**\n     * Socket constructor.\n     *\n     * @param {String|Object} uri - uri or options\n     * @param {Object} opts - options\n     */\n    constructor(uri, opts = {}) {\n        super();\n        this.binaryType = defaultBinaryType;\n        this.writeBuffer = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = null;\n        }\n        if (uri) {\n            uri = parse(uri);\n            opts.hostname = uri.host;\n            opts.secure = uri.protocol === \"https\" || uri.protocol === \"wss\";\n            opts.port = uri.port;\n            if (uri.query)\n                opts.query = uri.query;\n        }\n        else if (opts.host) {\n            opts.hostname = parse(opts.host).host;\n        }\n        installTimerFunctions(this, opts);\n        this.secure =\n            null != opts.secure\n                ? opts.secure\n                : typeof location !== \"undefined\" && \"https:\" === location.protocol;\n        if (opts.hostname && !opts.port) {\n            // if no port is specified manually, use the protocol default\n            opts.port = this.secure ? \"443\" : \"80\";\n        }\n        this.hostname =\n            opts.hostname ||\n                (typeof location !== \"undefined\" ? location.hostname : \"localhost\");\n        this.port =\n            opts.port ||\n                (typeof location !== \"undefined\" && location.port\n                    ? location.port\n                    : this.secure\n                        ? \"443\"\n                        : \"80\");\n        this.transports = opts.transports || [\n            \"polling\",\n            \"websocket\",\n            \"webtransport\",\n        ];\n        this.writeBuffer = [];\n        this.prevBufferLen = 0;\n        this.opts = Object.assign({\n            path: \"/engine.io\",\n            agent: false,\n            withCredentials: false,\n            upgrade: true,\n            timestampParam: \"t\",\n            rememberUpgrade: false,\n            addTrailingSlash: true,\n            rejectUnauthorized: true,\n            perMessageDeflate: {\n                threshold: 1024,\n            },\n            transportOptions: {},\n            closeOnBeforeunload: false,\n        }, opts);\n        this.opts.path =\n            this.opts.path.replace(/\\/$/, \"\") +\n                (this.opts.addTrailingSlash ? \"/\" : \"\");\n        if (typeof this.opts.query === \"string\") {\n            this.opts.query = decode(this.opts.query);\n        }\n        // set on handshake\n        this.id = null;\n        this.upgrades = null;\n        this.pingInterval = null;\n        this.pingTimeout = null;\n        // set on heartbeat\n        this.pingTimeoutTimer = null;\n        if (typeof addEventListener === \"function\") {\n            if (this.opts.closeOnBeforeunload) {\n                // Firefox closes the connection when the \"beforeunload\" event is emitted but not Chrome. This event listener\n                // ensures every browser behaves the same (no \"disconnect\" event at the Socket.IO level when the page is\n                // closed/reloaded)\n                this.beforeunloadEventListener = () => {\n                    if (this.transport) {\n                        // silently close the transport\n                        this.transport.removeAllListeners();\n                        this.transport.close();\n                    }\n                };\n                addEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n            }\n            if (this.hostname !== \"localhost\") {\n                this.offlineEventListener = () => {\n                    this.onClose(\"transport close\", {\n                        description: \"network connection lost\",\n                    });\n                };\n                addEventListener(\"offline\", this.offlineEventListener, false);\n            }\n        }\n        this.open();\n    }\n    /**\n     * Creates transport of the given type.\n     *\n     * @param {String} name - transport name\n     * @return {Transport}\n     * @private\n     */\n    createTransport(name) {\n        const query = Object.assign({}, this.opts.query);\n        // append engine.io protocol identifier\n        query.EIO = protocol;\n        // transport name\n        query.transport = name;\n        // session id if we already have one\n        if (this.id)\n            query.sid = this.id;\n        const opts = Object.assign({}, this.opts, {\n            query,\n            socket: this,\n            hostname: this.hostname,\n            secure: this.secure,\n            port: this.port,\n        }, this.opts.transportOptions[name]);\n        return new transports[name](opts);\n    }\n    /**\n     * Initializes transport to use and starts probe.\n     *\n     * @private\n     */\n    open() {\n        let transport;\n        if (this.opts.rememberUpgrade &&\n            Socket.priorWebsocketSuccess &&\n            this.transports.indexOf(\"websocket\") !== -1) {\n            transport = \"websocket\";\n        }\n        else if (0 === this.transports.length) {\n            // Emit error on next tick so it can be listened to\n            this.setTimeoutFn(() => {\n                this.emitReserved(\"error\", \"No transports available\");\n            }, 0);\n            return;\n        }\n        else {\n            transport = this.transports[0];\n        }\n        this.readyState = \"opening\";\n        // Retry with the next transport if the transport is disabled (jsonp: false)\n        try {\n            transport = this.createTransport(transport);\n        }\n        catch (e) {\n            this.transports.shift();\n            this.open();\n            return;\n        }\n        transport.open();\n        this.setTransport(transport);\n    }\n    /**\n     * Sets the current transport. Disables the existing one (if any).\n     *\n     * @private\n     */\n    setTransport(transport) {\n        if (this.transport) {\n            this.transport.removeAllListeners();\n        }\n        // set up transport\n        this.transport = transport;\n        // set up transport listeners\n        transport\n            .on(\"drain\", this.onDrain.bind(this))\n            .on(\"packet\", this.onPacket.bind(this))\n            .on(\"error\", this.onError.bind(this))\n            .on(\"close\", (reason) => this.onClose(\"transport close\", reason));\n    }\n    /**\n     * Probes a transport.\n     *\n     * @param {String} name - transport name\n     * @private\n     */\n    probe(name) {\n        let transport = this.createTransport(name);\n        let failed = false;\n        Socket.priorWebsocketSuccess = false;\n        const onTransportOpen = () => {\n            if (failed)\n                return;\n            transport.send([{ type: \"ping\", data: \"probe\" }]);\n            transport.once(\"packet\", (msg) => {\n                if (failed)\n                    return;\n                if (\"pong\" === msg.type && \"probe\" === msg.data) {\n                    this.upgrading = true;\n                    this.emitReserved(\"upgrading\", transport);\n                    if (!transport)\n                        return;\n                    Socket.priorWebsocketSuccess = \"websocket\" === transport.name;\n                    this.transport.pause(() => {\n                        if (failed)\n                            return;\n                        if (\"closed\" === this.readyState)\n                            return;\n                        cleanup();\n                        this.setTransport(transport);\n                        transport.send([{ type: \"upgrade\" }]);\n                        this.emitReserved(\"upgrade\", transport);\n                        transport = null;\n                        this.upgrading = false;\n                        this.flush();\n                    });\n                }\n                else {\n                    const err = new Error(\"probe error\");\n                    // @ts-ignore\n                    err.transport = transport.name;\n                    this.emitReserved(\"upgradeError\", err);\n                }\n            });\n        };\n        function freezeTransport() {\n            if (failed)\n                return;\n            // Any callback called by transport should be ignored since now\n            failed = true;\n            cleanup();\n            transport.close();\n            transport = null;\n        }\n        // Handle any error that happens while probing\n        const onerror = (err) => {\n            const error = new Error(\"probe error: \" + err);\n            // @ts-ignore\n            error.transport = transport.name;\n            freezeTransport();\n            this.emitReserved(\"upgradeError\", error);\n        };\n        function onTransportClose() {\n            onerror(\"transport closed\");\n        }\n        // When the socket is closed while we're probing\n        function onclose() {\n            onerror(\"socket closed\");\n        }\n        // When the socket is upgraded while we're probing\n        function onupgrade(to) {\n            if (transport && to.name !== transport.name) {\n                freezeTransport();\n            }\n        }\n        // Remove all listeners on the transport and on self\n        const cleanup = () => {\n            transport.removeListener(\"open\", onTransportOpen);\n            transport.removeListener(\"error\", onerror);\n            transport.removeListener(\"close\", onTransportClose);\n            this.off(\"close\", onclose);\n            this.off(\"upgrading\", onupgrade);\n        };\n        transport.once(\"open\", onTransportOpen);\n        transport.once(\"error\", onerror);\n        transport.once(\"close\", onTransportClose);\n        this.once(\"close\", onclose);\n        this.once(\"upgrading\", onupgrade);\n        if (this.upgrades.indexOf(\"webtransport\") !== -1 &&\n            name !== \"webtransport\") {\n            // favor WebTransport\n            this.setTimeoutFn(() => {\n                if (!failed) {\n                    transport.open();\n                }\n            }, 200);\n        }\n        else {\n            transport.open();\n        }\n    }\n    /**\n     * Called when connection is deemed open.\n     *\n     * @private\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        Socket.priorWebsocketSuccess = \"websocket\" === this.transport.name;\n        this.emitReserved(\"open\");\n        this.flush();\n        // we check for `readyState` in case an `open`\n        // listener already closed the socket\n        if (\"open\" === this.readyState && this.opts.upgrade) {\n            let i = 0;\n            const l = this.upgrades.length;\n            for (; i < l; i++) {\n                this.probe(this.upgrades[i]);\n            }\n        }\n    }\n    /**\n     * Handles a packet.\n     *\n     * @private\n     */\n    onPacket(packet) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            this.emitReserved(\"packet\", packet);\n            // Socket is live - any packet counts\n            this.emitReserved(\"heartbeat\");\n            this.resetPingTimeout();\n            switch (packet.type) {\n                case \"open\":\n                    this.onHandshake(JSON.parse(packet.data));\n                    break;\n                case \"ping\":\n                    this.sendPacket(\"pong\");\n                    this.emitReserved(\"ping\");\n                    this.emitReserved(\"pong\");\n                    break;\n                case \"error\":\n                    const err = new Error(\"server error\");\n                    // @ts-ignore\n                    err.code = packet.data;\n                    this.onError(err);\n                    break;\n                case \"message\":\n                    this.emitReserved(\"data\", packet.data);\n                    this.emitReserved(\"message\", packet.data);\n                    break;\n            }\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon handshake completion.\n     *\n     * @param {Object} data - handshake obj\n     * @private\n     */\n    onHandshake(data) {\n        this.emitReserved(\"handshake\", data);\n        this.id = data.sid;\n        this.transport.query.sid = data.sid;\n        this.upgrades = this.filterUpgrades(data.upgrades);\n        this.pingInterval = data.pingInterval;\n        this.pingTimeout = data.pingTimeout;\n        this.maxPayload = data.maxPayload;\n        this.onOpen();\n        // In case open handler closes socket\n        if (\"closed\" === this.readyState)\n            return;\n        this.resetPingTimeout();\n    }\n    /**\n     * Sets and resets ping timeout timer based on server pings.\n     *\n     * @private\n     */\n    resetPingTimeout() {\n        this.clearTimeoutFn(this.pingTimeoutTimer);\n        this.pingTimeoutTimer = this.setTimeoutFn(() => {\n            this.onClose(\"ping timeout\");\n        }, this.pingInterval + this.pingTimeout);\n        if (this.opts.autoUnref) {\n            this.pingTimeoutTimer.unref();\n        }\n    }\n    /**\n     * Called on `drain` event\n     *\n     * @private\n     */\n    onDrain() {\n        this.writeBuffer.splice(0, this.prevBufferLen);\n        // setting prevBufferLen = 0 is very important\n        // for example, when upgrading, upgrade packet is sent over,\n        // and a nonzero prevBufferLen could cause problems on `drain`\n        this.prevBufferLen = 0;\n        if (0 === this.writeBuffer.length) {\n            this.emitReserved(\"drain\");\n        }\n        else {\n            this.flush();\n        }\n    }\n    /**\n     * Flush write buffers.\n     *\n     * @private\n     */\n    flush() {\n        if (\"closed\" !== this.readyState &&\n            this.transport.writable &&\n            !this.upgrading &&\n            this.writeBuffer.length) {\n            const packets = this.getWritablePackets();\n            this.transport.send(packets);\n            // keep track of current length of writeBuffer\n            // splice writeBuffer and callbackBuffer on `drain`\n            this.prevBufferLen = packets.length;\n            this.emitReserved(\"flush\");\n        }\n    }\n    /**\n     * Ensure the encoded size of the writeBuffer is below the maxPayload value sent by the server (only for HTTP\n     * long-polling)\n     *\n     * @private\n     */\n    getWritablePackets() {\n        const shouldCheckPayloadSize = this.maxPayload &&\n            this.transport.name === \"polling\" &&\n            this.writeBuffer.length > 1;\n        if (!shouldCheckPayloadSize) {\n            return this.writeBuffer;\n        }\n        let payloadSize = 1; // first packet type\n        for (let i = 0; i < this.writeBuffer.length; i++) {\n            const data = this.writeBuffer[i].data;\n            if (data) {\n                payloadSize += byteLength(data);\n            }\n            if (i > 0 && payloadSize > this.maxPayload) {\n                return this.writeBuffer.slice(0, i);\n            }\n            payloadSize += 2; // separator + packet type\n        }\n        return this.writeBuffer;\n    }\n    /**\n     * Sends a message.\n     *\n     * @param {String} msg - message.\n     * @param {Object} options.\n     * @param {Function} callback function.\n     * @return {Socket} for chaining.\n     */\n    write(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    send(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param {String} type: packet type.\n     * @param {String} data.\n     * @param {Object} options.\n     * @param {Function} fn - callback function.\n     * @private\n     */\n    sendPacket(type, data, options, fn) {\n        if (\"function\" === typeof data) {\n            fn = data;\n            data = undefined;\n        }\n        if (\"function\" === typeof options) {\n            fn = options;\n            options = null;\n        }\n        if (\"closing\" === this.readyState || \"closed\" === this.readyState) {\n            return;\n        }\n        options = options || {};\n        options.compress = false !== options.compress;\n        const packet = {\n            type: type,\n            data: data,\n            options: options,\n        };\n        this.emitReserved(\"packetCreate\", packet);\n        this.writeBuffer.push(packet);\n        if (fn)\n            this.once(\"flush\", fn);\n        this.flush();\n    }\n    /**\n     * Closes the connection.\n     */\n    close() {\n        const close = () => {\n            this.onClose(\"forced close\");\n            this.transport.close();\n        };\n        const cleanupAndClose = () => {\n            this.off(\"upgrade\", cleanupAndClose);\n            this.off(\"upgradeError\", cleanupAndClose);\n            close();\n        };\n        const waitForUpgrade = () => {\n            // wait for upgrade to finish since we can't send packets while pausing a transport\n            this.once(\"upgrade\", cleanupAndClose);\n            this.once(\"upgradeError\", cleanupAndClose);\n        };\n        if (\"opening\" === this.readyState || \"open\" === this.readyState) {\n            this.readyState = \"closing\";\n            if (this.writeBuffer.length) {\n                this.once(\"drain\", () => {\n                    if (this.upgrading) {\n                        waitForUpgrade();\n                    }\n                    else {\n                        close();\n                    }\n                });\n            }\n            else if (this.upgrading) {\n                waitForUpgrade();\n            }\n            else {\n                close();\n            }\n        }\n        return this;\n    }\n    /**\n     * Called upon transport error\n     *\n     * @private\n     */\n    onError(err) {\n        Socket.priorWebsocketSuccess = false;\n        this.emitReserved(\"error\", err);\n        this.onClose(\"transport error\", err);\n    }\n    /**\n     * Called upon transport close.\n     *\n     * @private\n     */\n    onClose(reason, description) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            // clear timers\n            this.clearTimeoutFn(this.pingTimeoutTimer);\n            // stop event from firing again for transport\n            this.transport.removeAllListeners(\"close\");\n            // ensure transport won't stay open\n            this.transport.close();\n            // ignore further transport communication\n            this.transport.removeAllListeners();\n            if (typeof removeEventListener === \"function\") {\n                removeEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n                removeEventListener(\"offline\", this.offlineEventListener, false);\n            }\n            // set ready state\n            this.readyState = \"closed\";\n            // clear session id\n            this.id = null;\n            // emit close event\n            this.emitReserved(\"close\", reason, description);\n            // clean buffers after, so users can still\n            // grab the buffers on `close` event\n            this.writeBuffer = [];\n            this.prevBufferLen = 0;\n        }\n    }\n    /**\n     * Filters upgrades, returning only those matching client transports.\n     *\n     * @param {Array} upgrades - server upgrades\n     * @private\n     */\n    filterUpgrades(upgrades) {\n        const filteredUpgrades = [];\n        let i = 0;\n        const j = upgrades.length;\n        for (; i < j; i++) {\n            if (~this.transports.indexOf(upgrades[i]))\n                filteredUpgrades.push(upgrades[i]);\n        }\n        return filteredUpgrades;\n    }\n}\nSocket.protocol = protocol;\n", "import { Socket } from \"./socket.js\";\nexport { Socket };\nexport const protocol = Socket.protocol;\nexport { Transport, TransportError } from \"./transport.js\";\nexport { transports } from \"./transports/index.js\";\nexport { installTimerFunctions } from \"./util.js\";\nexport { parse } from \"./contrib/parseuri.js\";\nexport { nextTick } from \"./transports/websocket-constructor.js\";\n", "import { parse } from \"engine.io-client\";\n/**\n * URL parser.\n *\n * @param uri - url\n * @param path - the request path of the connection\n * @param loc - An object meant to mimic window.location.\n *        Defaults to window.location.\n * @public\n */\nexport function url(uri, path = \"\", loc) {\n    let obj = uri;\n    // default to window.location\n    loc = loc || (typeof location !== \"undefined\" && location);\n    if (null == uri)\n        uri = loc.protocol + \"//\" + loc.host;\n    // relative path support\n    if (typeof uri === \"string\") {\n        if (\"/\" === uri.charAt(0)) {\n            if (\"/\" === uri.charAt(1)) {\n                uri = loc.protocol + uri;\n            }\n            else {\n                uri = loc.host + uri;\n            }\n        }\n        if (!/^(https?|wss?):\\/\\//.test(uri)) {\n            if (\"undefined\" !== typeof loc) {\n                uri = loc.protocol + \"//\" + uri;\n            }\n            else {\n                uri = \"https://\" + uri;\n            }\n        }\n        // parse\n        obj = parse(uri);\n    }\n    // make sure we treat `localhost:80` and `localhost` equally\n    if (!obj.port) {\n        if (/^(http|ws)$/.test(obj.protocol)) {\n            obj.port = \"80\";\n        }\n        else if (/^(http|ws)s$/.test(obj.protocol)) {\n            obj.port = \"443\";\n        }\n    }\n    obj.path = obj.path || \"/\";\n    const ipv6 = obj.host.indexOf(\":\") !== -1;\n    const host = ipv6 ? \"[\" + obj.host + \"]\" : obj.host;\n    // define unique id\n    obj.id = obj.protocol + \"://\" + host + \":\" + obj.port + path;\n    // define href\n    obj.href =\n        obj.protocol +\n            \"://\" +\n            host +\n            (loc && loc.port === obj.port ? \"\" : \":\" + obj.port);\n    return obj;\n}\n", "import { Emitter } from \"@socket.io/component-emitter\";\nimport { deconstructPacket, reconstructPacket } from \"./binary.js\";\nimport { isBinary, hasBinary } from \"./is-binary.js\";\n/**\n * These strings must not be used as event names, as they have a special meaning.\n */\nconst RESERVED_EVENTS = [\n    \"connect\",\n    \"connect_error\",\n    \"disconnect\",\n    \"disconnecting\",\n    \"newListener\",\n    \"removeListener\", // used by the Node.js EventEmitter\n];\n/**\n * Protocol version.\n *\n * @public\n */\nexport const protocol = 5;\nexport var PacketType;\n(function (PacketType) {\n    PacketType[PacketType[\"CONNECT\"] = 0] = \"CONNECT\";\n    PacketType[PacketType[\"DISCONNECT\"] = 1] = \"DISCONNECT\";\n    PacketType[PacketType[\"EVENT\"] = 2] = \"EVENT\";\n    PacketType[PacketType[\"ACK\"] = 3] = \"ACK\";\n    PacketType[PacketType[\"CONNECT_ERROR\"] = 4] = \"CONNECT_ERROR\";\n    PacketType[PacketType[\"BINARY_EVENT\"] = 5] = \"BINARY_EVENT\";\n    PacketType[PacketType[\"BINARY_ACK\"] = 6] = \"BINARY_ACK\";\n})(PacketType || (PacketType = {}));\n/**\n * A socket.io Encoder instance\n */\nexport class Encoder {\n    /**\n     * Encoder constructor\n     *\n     * @param {function} replacer - custom replacer to pass down to JSON.parse\n     */\n    constructor(replacer) {\n        this.replacer = replacer;\n    }\n    /**\n     * Encode a packet as a single string if non-binary, or as a\n     * buffer sequence, depending on packet type.\n     *\n     * @param {Object} obj - packet object\n     */\n    encode(obj) {\n        if (obj.type === PacketType.EVENT || obj.type === PacketType.ACK) {\n            if (hasBinary(obj)) {\n                return this.encodeAsBinary({\n                    type: obj.type === PacketType.EVENT\n                        ? PacketType.BINARY_EVENT\n                        : PacketType.BINARY_ACK,\n                    nsp: obj.nsp,\n                    data: obj.data,\n                    id: obj.id,\n                });\n            }\n        }\n        return [this.encodeAsString(obj)];\n    }\n    /**\n     * Encode packet as string.\n     */\n    encodeAsString(obj) {\n        // first is type\n        let str = \"\" + obj.type;\n        // attachments if we have them\n        if (obj.type === PacketType.BINARY_EVENT ||\n            obj.type === PacketType.BINARY_ACK) {\n            str += obj.attachments + \"-\";\n        }\n        // if we have a namespace other than `/`\n        // we append it followed by a comma `,`\n        if (obj.nsp && \"/\" !== obj.nsp) {\n            str += obj.nsp + \",\";\n        }\n        // immediately followed by the id\n        if (null != obj.id) {\n            str += obj.id;\n        }\n        // json data\n        if (null != obj.data) {\n            str += JSON.stringify(obj.data, this.replacer);\n        }\n        return str;\n    }\n    /**\n     * Encode packet as 'buffer sequence' by removing blobs, and\n     * deconstructing packet into object with placeholders and\n     * a list of buffers.\n     */\n    encodeAsBinary(obj) {\n        const deconstruction = deconstructPacket(obj);\n        const pack = this.encodeAsString(deconstruction.packet);\n        const buffers = deconstruction.buffers;\n        buffers.unshift(pack); // add packet info to beginning of data list\n        return buffers; // write all the buffers\n    }\n}\n// see https://stackoverflow.com/questions/8511281/check-if-a-value-is-an-object-in-javascript\nfunction isObject(value) {\n    return Object.prototype.toString.call(value) === \"[object Object]\";\n}\n/**\n * A socket.io Decoder instance\n *\n * @return {Object} decoder\n */\nexport class Decoder extends Emitter {\n    /**\n     * Decoder constructor\n     *\n     * @param {function} reviver - custom reviver to pass down to JSON.stringify\n     */\n    constructor(reviver) {\n        super();\n        this.reviver = reviver;\n    }\n    /**\n     * Decodes an encoded packet string into packet JSON.\n     *\n     * @param {String} obj - encoded packet\n     */\n    add(obj) {\n        let packet;\n        if (typeof obj === \"string\") {\n            if (this.reconstructor) {\n                throw new Error(\"got plaintext data when reconstructing a packet\");\n            }\n            packet = this.decodeString(obj);\n            const isBinaryEvent = packet.type === PacketType.BINARY_EVENT;\n            if (isBinaryEvent || packet.type === PacketType.BINARY_ACK) {\n                packet.type = isBinaryEvent ? PacketType.EVENT : PacketType.ACK;\n                // binary packet's json\n                this.reconstructor = new BinaryReconstructor(packet);\n                // no attachments, labeled binary but no binary data to follow\n                if (packet.attachments === 0) {\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n            else {\n                // non-binary full packet\n                super.emitReserved(\"decoded\", packet);\n            }\n        }\n        else if (isBinary(obj) || obj.base64) {\n            // raw binary data\n            if (!this.reconstructor) {\n                throw new Error(\"got binary data when not reconstructing a packet\");\n            }\n            else {\n                packet = this.reconstructor.takeBinaryData(obj);\n                if (packet) {\n                    // received final buffer\n                    this.reconstructor = null;\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n        }\n        else {\n            throw new Error(\"Unknown type: \" + obj);\n        }\n    }\n    /**\n     * Decode a packet String (JSON data)\n     *\n     * @param {String} str\n     * @return {Object} packet\n     */\n    decodeString(str) {\n        let i = 0;\n        // look up type\n        const p = {\n            type: Number(str.charAt(0)),\n        };\n        if (PacketType[p.type] === undefined) {\n            throw new Error(\"unknown packet type \" + p.type);\n        }\n        // look up attachments if type binary\n        if (p.type === PacketType.BINARY_EVENT ||\n            p.type === PacketType.BINARY_ACK) {\n            const start = i + 1;\n            while (str.charAt(++i) !== \"-\" && i != str.length) { }\n            const buf = str.substring(start, i);\n            if (buf != Number(buf) || str.charAt(i) !== \"-\") {\n                throw new Error(\"Illegal attachments\");\n            }\n            p.attachments = Number(buf);\n        }\n        // look up namespace (if any)\n        if (\"/\" === str.charAt(i + 1)) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (\",\" === c)\n                    break;\n                if (i === str.length)\n                    break;\n            }\n            p.nsp = str.substring(start, i);\n        }\n        else {\n            p.nsp = \"/\";\n        }\n        // look up id\n        const next = str.charAt(i + 1);\n        if (\"\" !== next && Number(next) == next) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (null == c || Number(c) != c) {\n                    --i;\n                    break;\n                }\n                if (i === str.length)\n                    break;\n            }\n            p.id = Number(str.substring(start, i + 1));\n        }\n        // look up json data\n        if (str.charAt(++i)) {\n            const payload = this.tryParse(str.substr(i));\n            if (Decoder.isPayloadValid(p.type, payload)) {\n                p.data = payload;\n            }\n            else {\n                throw new Error(\"invalid payload\");\n            }\n        }\n        return p;\n    }\n    tryParse(str) {\n        try {\n            return JSON.parse(str, this.reviver);\n        }\n        catch (e) {\n            return false;\n        }\n    }\n    static isPayloadValid(type, payload) {\n        switch (type) {\n            case PacketType.CONNECT:\n                return isObject(payload);\n            case PacketType.DISCONNECT:\n                return payload === undefined;\n            case PacketType.CONNECT_ERROR:\n                return typeof payload === \"string\" || isObject(payload);\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                return (Array.isArray(payload) &&\n                    (typeof payload[0] === \"number\" ||\n                        (typeof payload[0] === \"string\" &&\n                            RESERVED_EVENTS.indexOf(payload[0]) === -1)));\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                return Array.isArray(payload);\n        }\n    }\n    /**\n     * Deallocates a parser's resources\n     */\n    destroy() {\n        if (this.reconstructor) {\n            this.reconstructor.finishedReconstruction();\n            this.reconstructor = null;\n        }\n    }\n}\n/**\n * A manager of a binary event's 'buffer sequence'. Should\n * be constructed whenever a packet of type BINARY_EVENT is\n * decoded.\n *\n * @param {Object} packet\n * @return {BinaryReconstructor} initialized reconstructor\n */\nclass BinaryReconstructor {\n    constructor(packet) {\n        this.packet = packet;\n        this.buffers = [];\n        this.reconPack = packet;\n    }\n    /**\n     * Method to be called when binary data received from connection\n     * after a BINARY_EVENT packet.\n     *\n     * @param {Buffer | ArrayBuffer} binData - the raw binary data received\n     * @return {null | Object} returns null if more binary data is expected or\n     *   a reconstructed packet object if all buffers have been received.\n     */\n    takeBinaryData(binData) {\n        this.buffers.push(binData);\n        if (this.buffers.length === this.reconPack.attachments) {\n            // done with buffer list\n            const packet = reconstructPacket(this.reconPack, this.buffers);\n            this.finishedReconstruction();\n            return packet;\n        }\n        return null;\n    }\n    /**\n     * Cleans up binary packet reconstruction variables.\n     */\n    finishedReconstruction() {\n        this.reconPack = null;\n        this.buffers = [];\n    }\n}\n", "const withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nconst isView = (obj) => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj.buffer instanceof ArrayBuffer;\n};\nconst toString = Object.prototype.toString;\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeFile = typeof File === \"function\" ||\n    (typeof File !== \"undefined\" &&\n        toString.call(File) === \"[object FileConstructor]\");\n/**\n * Returns true if obj is a Buffer, an ArrayBuffer, a Blob or a File.\n *\n * @private\n */\nexport function isBinary(obj) {\n    return ((withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj))) ||\n        (withNativeBlob && obj instanceof Blob) ||\n        (withNativeFile && obj instanceof File));\n}\nexport function hasBinary(obj, toJSON) {\n    if (!obj || typeof obj !== \"object\") {\n        return false;\n    }\n    if (Array.isArray(obj)) {\n        for (let i = 0, l = obj.length; i < l; i++) {\n            if (hasBinary(obj[i])) {\n                return true;\n            }\n        }\n        return false;\n    }\n    if (isBinary(obj)) {\n        return true;\n    }\n    if (obj.toJSON &&\n        typeof obj.toJSON === \"function\" &&\n        arguments.length === 1) {\n        return hasBinary(obj.toJSON(), true);\n    }\n    for (const key in obj) {\n        if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {\n            return true;\n        }\n    }\n    return false;\n}\n", "import { isBinary } from \"./is-binary.js\";\n/**\n * Replaces every Buffer | ArrayBuffer | Blob | File in packet with a numbered placeholder.\n *\n * @param {Object} packet - socket.io event packet\n * @return {Object} with deconstructed packet and list of buffers\n * @public\n */\nexport function deconstructPacket(packet) {\n    const buffers = [];\n    const packetData = packet.data;\n    const pack = packet;\n    pack.data = _deconstructPacket(packetData, buffers);\n    pack.attachments = buffers.length; // number of binary 'attachments'\n    return { packet: pack, buffers: buffers };\n}\nfunction _deconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (isBinary(data)) {\n        const placeholder = { _placeholder: true, num: buffers.length };\n        buffers.push(data);\n        return placeholder;\n    }\n    else if (Array.isArray(data)) {\n        const newData = new Array(data.length);\n        for (let i = 0; i < data.length; i++) {\n            newData[i] = _deconstructPacket(data[i], buffers);\n        }\n        return newData;\n    }\n    else if (typeof data === \"object\" && !(data instanceof Date)) {\n        const newData = {};\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                newData[key] = _deconstructPacket(data[key], buffers);\n            }\n        }\n        return newData;\n    }\n    return data;\n}\n/**\n * Reconstructs a binary packet from its placeholder packet and buffers\n *\n * @param {Object} packet - event packet with placeholders\n * @param {Array} buffers - binary buffers to put in placeholder positions\n * @return {Object} reconstructed packet\n * @public\n */\nexport function reconstructPacket(packet, buffers) {\n    packet.data = _reconstructPacket(packet.data, buffers);\n    delete packet.attachments; // no longer useful\n    return packet;\n}\nfunction _reconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (data && data._placeholder === true) {\n        const isIndexValid = typeof data.num === \"number\" &&\n            data.num >= 0 &&\n            data.num < buffers.length;\n        if (isIndexValid) {\n            return buffers[data.num]; // appropriate buffer (should be natural order anyway)\n        }\n        else {\n            throw new Error(\"illegal attachments\");\n        }\n    }\n    else if (Array.isArray(data)) {\n        for (let i = 0; i < data.length; i++) {\n            data[i] = _reconstructPacket(data[i], buffers);\n        }\n    }\n    else if (typeof data === \"object\") {\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                data[key] = _reconstructPacket(data[key], buffers);\n            }\n        }\n    }\n    return data;\n}\n", "export function on(obj, ev, fn) {\n    obj.on(ev, fn);\n    return function subDestroy() {\n        obj.off(ev, fn);\n    };\n}\n", "import { PacketType } from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\n/**\n * Internal events.\n * These events can't be emitted by the user.\n */\nconst RESERVED_EVENTS = Object.freeze({\n    connect: 1,\n    connect_error: 1,\n    disconnect: 1,\n    disconnecting: 1,\n    // EventEmitter reserved events: https://nodejs.org/api/events.html#events_event_newlistener\n    newListener: 1,\n    removeListener: 1,\n});\n/**\n * A Socket is the fundamental class for interacting with the server.\n *\n * A Socket belongs to a certain Namespace (by default /) and uses an underlying {@link Manager} to communicate.\n *\n * @example\n * const socket = io();\n *\n * socket.on(\"connect\", () => {\n *   console.log(\"connected\");\n * });\n *\n * // send an event to the server\n * socket.emit(\"foo\", \"bar\");\n *\n * socket.on(\"foobar\", () => {\n *   // an event was received from the server\n * });\n *\n * // upon disconnection\n * socket.on(\"disconnect\", (reason) => {\n *   console.log(`disconnected due to ${reason}`);\n * });\n */\nexport class Socket extends Emitter {\n    /**\n     * `Socket` constructor.\n     */\n    constructor(io, nsp, opts) {\n        super();\n        /**\n         * Whether the socket is currently connected to the server.\n         *\n         * @example\n         * const socket = io();\n         *\n         * socket.on(\"connect\", () => {\n         *   console.log(socket.connected); // true\n         * });\n         *\n         * socket.on(\"disconnect\", () => {\n         *   console.log(socket.connected); // false\n         * });\n         */\n        this.connected = false;\n        /**\n         * Whether the connection state was recovered after a temporary disconnection. In that case, any missed packets will\n         * be transmitted by the server.\n         */\n        this.recovered = false;\n        /**\n         * Buffer for packets received before the CONNECT packet\n         */\n        this.receiveBuffer = [];\n        /**\n         * Buffer for packets that will be sent once the socket is connected\n         */\n        this.sendBuffer = [];\n        /**\n         * The queue of packets to be sent with retry in case of failure.\n         *\n         * Packets are sent one by one, each waiting for the server acknowledgement, in order to guarantee the delivery order.\n         * @private\n         */\n        this._queue = [];\n        /**\n         * A sequence to generate the ID of the {@link QueuedPacket}.\n         * @private\n         */\n        this._queueSeq = 0;\n        this.ids = 0;\n        this.acks = {};\n        this.flags = {};\n        this.io = io;\n        this.nsp = nsp;\n        if (opts && opts.auth) {\n            this.auth = opts.auth;\n        }\n        this._opts = Object.assign({}, opts);\n        if (this.io._autoConnect)\n            this.open();\n    }\n    /**\n     * Whether the socket is currently disconnected\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"connect\", () => {\n     *   console.log(socket.disconnected); // false\n     * });\n     *\n     * socket.on(\"disconnect\", () => {\n     *   console.log(socket.disconnected); // true\n     * });\n     */\n    get disconnected() {\n        return !this.connected;\n    }\n    /**\n     * Subscribe to open, close and packet events\n     *\n     * @private\n     */\n    subEvents() {\n        if (this.subs)\n            return;\n        const io = this.io;\n        this.subs = [\n            on(io, \"open\", this.onopen.bind(this)),\n            on(io, \"packet\", this.onpacket.bind(this)),\n            on(io, \"error\", this.onerror.bind(this)),\n            on(io, \"close\", this.onclose.bind(this)),\n        ];\n    }\n    /**\n     * Whether the Socket will try to reconnect when its Manager connects or reconnects.\n     *\n     * @example\n     * const socket = io();\n     *\n     * console.log(socket.active); // true\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   if (reason === \"io server disconnect\") {\n     *     // the disconnection was initiated by the server, you need to manually reconnect\n     *     console.log(socket.active); // false\n     *   }\n     *   // else the socket will automatically try to reconnect\n     *   console.log(socket.active); // true\n     * });\n     */\n    get active() {\n        return !!this.subs;\n    }\n    /**\n     * \"Opens\" the socket.\n     *\n     * @example\n     * const socket = io({\n     *   autoConnect: false\n     * });\n     *\n     * socket.connect();\n     */\n    connect() {\n        if (this.connected)\n            return this;\n        this.subEvents();\n        if (!this.io[\"_reconnecting\"])\n            this.io.open(); // ensure open\n        if (\"open\" === this.io._readyState)\n            this.onopen();\n        return this;\n    }\n    /**\n     * Alias for {@link connect()}.\n     */\n    open() {\n        return this.connect();\n    }\n    /**\n     * Sends a `message` event.\n     *\n     * This method mimics the WebSocket.send() method.\n     *\n     * @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send\n     *\n     * @example\n     * socket.send(\"hello\");\n     *\n     * // this is equivalent to\n     * socket.emit(\"message\", \"hello\");\n     *\n     * @return self\n     */\n    send(...args) {\n        args.unshift(\"message\");\n        this.emit.apply(this, args);\n        return this;\n    }\n    /**\n     * Override `emit`.\n     * If the event is in `events`, it's emitted normally.\n     *\n     * @example\n     * socket.emit(\"hello\", \"world\");\n     *\n     * // all serializable datastructures are supported (no need to call JSON.stringify)\n     * socket.emit(\"hello\", 1, \"2\", { 3: [\"4\"], 5: Uint8Array.from([6]) });\n     *\n     * // with an acknowledgement from the server\n     * socket.emit(\"hello\", \"world\", (val) => {\n     *   // ...\n     * });\n     *\n     * @return self\n     */\n    emit(ev, ...args) {\n        if (RESERVED_EVENTS.hasOwnProperty(ev)) {\n            throw new Error('\"' + ev.toString() + '\" is a reserved event name');\n        }\n        args.unshift(ev);\n        if (this._opts.retries && !this.flags.fromQueue && !this.flags.volatile) {\n            this._addToQueue(args);\n            return this;\n        }\n        const packet = {\n            type: PacketType.EVENT,\n            data: args,\n        };\n        packet.options = {};\n        packet.options.compress = this.flags.compress !== false;\n        // event ack callback\n        if (\"function\" === typeof args[args.length - 1]) {\n            const id = this.ids++;\n            const ack = args.pop();\n            this._registerAckCallback(id, ack);\n            packet.id = id;\n        }\n        const isTransportWritable = this.io.engine &&\n            this.io.engine.transport &&\n            this.io.engine.transport.writable;\n        const discardPacket = this.flags.volatile && (!isTransportWritable || !this.connected);\n        if (discardPacket) {\n        }\n        else if (this.connected) {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        }\n        else {\n            this.sendBuffer.push(packet);\n        }\n        this.flags = {};\n        return this;\n    }\n    /**\n     * @private\n     */\n    _registerAckCallback(id, ack) {\n        var _a;\n        const timeout = (_a = this.flags.timeout) !== null && _a !== void 0 ? _a : this._opts.ackTimeout;\n        if (timeout === undefined) {\n            this.acks[id] = ack;\n            return;\n        }\n        // @ts-ignore\n        const timer = this.io.setTimeoutFn(() => {\n            delete this.acks[id];\n            for (let i = 0; i < this.sendBuffer.length; i++) {\n                if (this.sendBuffer[i].id === id) {\n                    this.sendBuffer.splice(i, 1);\n                }\n            }\n            ack.call(this, new Error(\"operation has timed out\"));\n        }, timeout);\n        this.acks[id] = (...args) => {\n            // @ts-ignore\n            this.io.clearTimeoutFn(timer);\n            ack.apply(this, [null, ...args]);\n        };\n    }\n    /**\n     * Emits an event and waits for an acknowledgement\n     *\n     * @example\n     * // without timeout\n     * const response = await socket.emitWithAck(\"hello\", \"world\");\n     *\n     * // with a specific timeout\n     * try {\n     *   const response = await socket.timeout(1000).emitWithAck(\"hello\", \"world\");\n     * } catch (err) {\n     *   // the server did not acknowledge the event in the given delay\n     * }\n     *\n     * @return a Promise that will be fulfilled when the server acknowledges the event\n     */\n    emitWithAck(ev, ...args) {\n        // the timeout flag is optional\n        const withErr = this.flags.timeout !== undefined || this._opts.ackTimeout !== undefined;\n        return new Promise((resolve, reject) => {\n            args.push((arg1, arg2) => {\n                if (withErr) {\n                    return arg1 ? reject(arg1) : resolve(arg2);\n                }\n                else {\n                    return resolve(arg1);\n                }\n            });\n            this.emit(ev, ...args);\n        });\n    }\n    /**\n     * Add the packet to the queue.\n     * @param args\n     * @private\n     */\n    _addToQueue(args) {\n        let ack;\n        if (typeof args[args.length - 1] === \"function\") {\n            ack = args.pop();\n        }\n        const packet = {\n            id: this._queueSeq++,\n            tryCount: 0,\n            pending: false,\n            args,\n            flags: Object.assign({ fromQueue: true }, this.flags),\n        };\n        args.push((err, ...responseArgs) => {\n            if (packet !== this._queue[0]) {\n                // the packet has already been acknowledged\n                return;\n            }\n            const hasError = err !== null;\n            if (hasError) {\n                if (packet.tryCount > this._opts.retries) {\n                    this._queue.shift();\n                    if (ack) {\n                        ack(err);\n                    }\n                }\n            }\n            else {\n                this._queue.shift();\n                if (ack) {\n                    ack(null, ...responseArgs);\n                }\n            }\n            packet.pending = false;\n            return this._drainQueue();\n        });\n        this._queue.push(packet);\n        this._drainQueue();\n    }\n    /**\n     * Send the first packet of the queue, and wait for an acknowledgement from the server.\n     * @param force - whether to resend a packet that has not been acknowledged yet\n     *\n     * @private\n     */\n    _drainQueue(force = false) {\n        if (!this.connected || this._queue.length === 0) {\n            return;\n        }\n        const packet = this._queue[0];\n        if (packet.pending && !force) {\n            return;\n        }\n        packet.pending = true;\n        packet.tryCount++;\n        this.flags = packet.flags;\n        this.emit.apply(this, packet.args);\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param packet\n     * @private\n     */\n    packet(packet) {\n        packet.nsp = this.nsp;\n        this.io._packet(packet);\n    }\n    /**\n     * Called upon engine `open`.\n     *\n     * @private\n     */\n    onopen() {\n        if (typeof this.auth == \"function\") {\n            this.auth((data) => {\n                this._sendConnectPacket(data);\n            });\n        }\n        else {\n            this._sendConnectPacket(this.auth);\n        }\n    }\n    /**\n     * Sends a CONNECT packet to initiate the Socket.IO session.\n     *\n     * @param data\n     * @private\n     */\n    _sendConnectPacket(data) {\n        this.packet({\n            type: PacketType.CONNECT,\n            data: this._pid\n                ? Object.assign({ pid: this._pid, offset: this._lastOffset }, data)\n                : data,\n        });\n    }\n    /**\n     * Called upon engine or manager `error`.\n     *\n     * @param err\n     * @private\n     */\n    onerror(err) {\n        if (!this.connected) {\n            this.emitReserved(\"connect_error\", err);\n        }\n    }\n    /**\n     * Called upon engine `close`.\n     *\n     * @param reason\n     * @param description\n     * @private\n     */\n    onclose(reason, description) {\n        this.connected = false;\n        delete this.id;\n        this.emitReserved(\"disconnect\", reason, description);\n    }\n    /**\n     * Called with socket packet.\n     *\n     * @param packet\n     * @private\n     */\n    onpacket(packet) {\n        const sameNamespace = packet.nsp === this.nsp;\n        if (!sameNamespace)\n            return;\n        switch (packet.type) {\n            case PacketType.CONNECT:\n                if (packet.data && packet.data.sid) {\n                    this.onconnect(packet.data.sid, packet.data.pid);\n                }\n                else {\n                    this.emitReserved(\"connect_error\", new Error(\"It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)\"));\n                }\n                break;\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                this.onevent(packet);\n                break;\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                this.onack(packet);\n                break;\n            case PacketType.DISCONNECT:\n                this.ondisconnect();\n                break;\n            case PacketType.CONNECT_ERROR:\n                this.destroy();\n                const err = new Error(packet.data.message);\n                // @ts-ignore\n                err.data = packet.data.data;\n                this.emitReserved(\"connect_error\", err);\n                break;\n        }\n    }\n    /**\n     * Called upon a server event.\n     *\n     * @param packet\n     * @private\n     */\n    onevent(packet) {\n        const args = packet.data || [];\n        if (null != packet.id) {\n            args.push(this.ack(packet.id));\n        }\n        if (this.connected) {\n            this.emitEvent(args);\n        }\n        else {\n            this.receiveBuffer.push(Object.freeze(args));\n        }\n    }\n    emitEvent(args) {\n        if (this._anyListeners && this._anyListeners.length) {\n            const listeners = this._anyListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, args);\n            }\n        }\n        super.emit.apply(this, args);\n        if (this._pid && args.length && typeof args[args.length - 1] === \"string\") {\n            this._lastOffset = args[args.length - 1];\n        }\n    }\n    /**\n     * Produces an ack callback to emit with an event.\n     *\n     * @private\n     */\n    ack(id) {\n        const self = this;\n        let sent = false;\n        return function (...args) {\n            // prevent double callbacks\n            if (sent)\n                return;\n            sent = true;\n            self.packet({\n                type: PacketType.ACK,\n                id: id,\n                data: args,\n            });\n        };\n    }\n    /**\n     * Called upon a server acknowlegement.\n     *\n     * @param packet\n     * @private\n     */\n    onack(packet) {\n        const ack = this.acks[packet.id];\n        if (\"function\" === typeof ack) {\n            ack.apply(this, packet.data);\n            delete this.acks[packet.id];\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon server connect.\n     *\n     * @private\n     */\n    onconnect(id, pid) {\n        this.id = id;\n        this.recovered = pid && this._pid === pid;\n        this._pid = pid; // defined only if connection state recovery is enabled\n        this.connected = true;\n        this.emitBuffered();\n        this.emitReserved(\"connect\");\n        this._drainQueue(true);\n    }\n    /**\n     * Emit buffered events (received and emitted).\n     *\n     * @private\n     */\n    emitBuffered() {\n        this.receiveBuffer.forEach((args) => this.emitEvent(args));\n        this.receiveBuffer = [];\n        this.sendBuffer.forEach((packet) => {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        });\n        this.sendBuffer = [];\n    }\n    /**\n     * Called upon server disconnect.\n     *\n     * @private\n     */\n    ondisconnect() {\n        this.destroy();\n        this.onclose(\"io server disconnect\");\n    }\n    /**\n     * Called upon forced client/server side disconnections,\n     * this method ensures the manager stops tracking us and\n     * that reconnections don't get triggered for this.\n     *\n     * @private\n     */\n    destroy() {\n        if (this.subs) {\n            // clean subscriptions to avoid reconnections\n            this.subs.forEach((subDestroy) => subDestroy());\n            this.subs = undefined;\n        }\n        this.io[\"_destroy\"](this);\n    }\n    /**\n     * Disconnects the socket manually. In that case, the socket will not try to reconnect.\n     *\n     * If this is the last active Socket instance of the {@link Manager}, the low-level connection will be closed.\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   // console.log(reason); prints \"io client disconnect\"\n     * });\n     *\n     * socket.disconnect();\n     *\n     * @return self\n     */\n    disconnect() {\n        if (this.connected) {\n            this.packet({ type: PacketType.DISCONNECT });\n        }\n        // remove socket from pool\n        this.destroy();\n        if (this.connected) {\n            // fire events\n            this.onclose(\"io client disconnect\");\n        }\n        return this;\n    }\n    /**\n     * Alias for {@link disconnect()}.\n     *\n     * @return self\n     */\n    close() {\n        return this.disconnect();\n    }\n    /**\n     * Sets the compress flag.\n     *\n     * @example\n     * socket.compress(false).emit(\"hello\");\n     *\n     * @param compress - if `true`, compresses the sending data\n     * @return self\n     */\n    compress(compress) {\n        this.flags.compress = compress;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the event message will be dropped when this socket is not\n     * ready to send messages.\n     *\n     * @example\n     * socket.volatile.emit(\"hello\"); // the server may or may not receive it\n     *\n     * @returns self\n     */\n    get volatile() {\n        this.flags.volatile = true;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the callback will be called with an error when the\n     * given number of milliseconds have elapsed without an acknowledgement from the server:\n     *\n     * @example\n     * socket.timeout(5000).emit(\"my-event\", (err) => {\n     *   if (err) {\n     *     // the server did not acknowledge the event in the given delay\n     *   }\n     * });\n     *\n     * @returns self\n     */\n    timeout(timeout) {\n        this.flags.timeout = timeout;\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * @example\n     * socket.onAny((event, ...args) => {\n     *   console.log(`got ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * @example\n     * socket.prependAny((event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * }\n     *\n     * socket.onAny(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAny(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAny();\n     *\n     * @param listener\n     */\n    offAny(listener) {\n        if (!this._anyListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAny() {\n        return this._anyListeners || [];\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.onAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.prependAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * }\n     *\n     * socket.onAnyOutgoing(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAnyOutgoing(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAnyOutgoing();\n     *\n     * @param [listener] - the catch-all listener (optional)\n     */\n    offAnyOutgoing(listener) {\n        if (!this._anyOutgoingListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyOutgoingListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyOutgoingListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAnyOutgoing() {\n        return this._anyOutgoingListeners || [];\n    }\n    /**\n     * Notify the listeners for each packet sent\n     *\n     * @param packet\n     *\n     * @private\n     */\n    notifyOutgoingListeners(packet) {\n        if (this._anyOutgoingListeners && this._anyOutgoingListeners.length) {\n            const listeners = this._anyOutgoingListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, packet.data);\n            }\n        }\n    }\n}\n", "/**\n * Initialize backoff timer with `opts`.\n *\n * - `min` initial timeout in milliseconds [100]\n * - `max` max timeout [10000]\n * - `jitter` [0]\n * - `factor` [2]\n *\n * @param {Object} opts\n * @api public\n */\nexport function Backoff(opts) {\n    opts = opts || {};\n    this.ms = opts.min || 100;\n    this.max = opts.max || 10000;\n    this.factor = opts.factor || 2;\n    this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;\n    this.attempts = 0;\n}\n/**\n * Return the backoff duration.\n *\n * @return {Number}\n * @api public\n */\nBackoff.prototype.duration = function () {\n    var ms = this.ms * Math.pow(this.factor, this.attempts++);\n    if (this.jitter) {\n        var rand = Math.random();\n        var deviation = Math.floor(rand * this.jitter * ms);\n        ms = (Math.floor(rand * 10) & 1) == 0 ? ms - deviation : ms + deviation;\n    }\n    return Math.min(ms, this.max) | 0;\n};\n/**\n * Reset the number of attempts.\n *\n * @api public\n */\nBackoff.prototype.reset = function () {\n    this.attempts = 0;\n};\n/**\n * Set the minimum duration\n *\n * @api public\n */\nBackoff.prototype.setMin = function (min) {\n    this.ms = min;\n};\n/**\n * Set the maximum duration\n *\n * @api public\n */\nBackoff.prototype.setMax = function (max) {\n    this.max = max;\n};\n/**\n * Set the jitter\n *\n * @api public\n */\nBackoff.prototype.setJitter = function (jitter) {\n    this.jitter = jitter;\n};\n", "import { Socket as Engine, installTimerFunctions, nextTick, } from \"engine.io-client\";\nimport { Socket } from \"./socket.js\";\nimport * as parser from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Backoff } from \"./contrib/backo2.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\nexport class Manager extends Emitter {\n    constructor(uri, opts) {\n        var _a;\n        super();\n        this.nsps = {};\n        this.subs = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = undefined;\n        }\n        opts = opts || {};\n        opts.path = opts.path || \"/socket.io\";\n        this.opts = opts;\n        installTimerFunctions(this, opts);\n        this.reconnection(opts.reconnection !== false);\n        this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);\n        this.reconnectionDelay(opts.reconnectionDelay || 1000);\n        this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);\n        this.randomizationFactor((_a = opts.randomizationFactor) !== null && _a !== void 0 ? _a : 0.5);\n        this.backoff = new Backoff({\n            min: this.reconnectionDelay(),\n            max: this.reconnectionDelayMax(),\n            jitter: this.randomizationFactor(),\n        });\n        this.timeout(null == opts.timeout ? 20000 : opts.timeout);\n        this._readyState = \"closed\";\n        this.uri = uri;\n        const _parser = opts.parser || parser;\n        this.encoder = new _parser.Encoder();\n        this.decoder = new _parser.Decoder();\n        this._autoConnect = opts.autoConnect !== false;\n        if (this._autoConnect)\n            this.open();\n    }\n    reconnection(v) {\n        if (!arguments.length)\n            return this._reconnection;\n        this._reconnection = !!v;\n        return this;\n    }\n    reconnectionAttempts(v) {\n        if (v === undefined)\n            return this._reconnectionAttempts;\n        this._reconnectionAttempts = v;\n        return this;\n    }\n    reconnectionDelay(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelay;\n        this._reconnectionDelay = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMin(v);\n        return this;\n    }\n    randomizationFactor(v) {\n        var _a;\n        if (v === undefined)\n            return this._randomizationFactor;\n        this._randomizationFactor = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setJitter(v);\n        return this;\n    }\n    reconnectionDelayMax(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelayMax;\n        this._reconnectionDelayMax = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMax(v);\n        return this;\n    }\n    timeout(v) {\n        if (!arguments.length)\n            return this._timeout;\n        this._timeout = v;\n        return this;\n    }\n    /**\n     * Starts trying to reconnect if reconnection is enabled and we have not\n     * started reconnecting yet\n     *\n     * @private\n     */\n    maybeReconnectOnOpen() {\n        // Only try to reconnect if it's the first time we're connecting\n        if (!this._reconnecting &&\n            this._reconnection &&\n            this.backoff.attempts === 0) {\n            // keeps reconnection from firing twice for the same reconnection loop\n            this.reconnect();\n        }\n    }\n    /**\n     * Sets the current transport `socket`.\n     *\n     * @param {Function} fn - optional, callback\n     * @return self\n     * @public\n     */\n    open(fn) {\n        if (~this._readyState.indexOf(\"open\"))\n            return this;\n        this.engine = new Engine(this.uri, this.opts);\n        const socket = this.engine;\n        const self = this;\n        this._readyState = \"opening\";\n        this.skipReconnect = false;\n        // emit `open`\n        const openSubDestroy = on(socket, \"open\", function () {\n            self.onopen();\n            fn && fn();\n        });\n        const onError = (err) => {\n            this.cleanup();\n            this._readyState = \"closed\";\n            this.emitReserved(\"error\", err);\n            if (fn) {\n                fn(err);\n            }\n            else {\n                // Only do this if there is no fn to handle the error\n                this.maybeReconnectOnOpen();\n            }\n        };\n        // emit `error`\n        const errorSub = on(socket, \"error\", onError);\n        if (false !== this._timeout) {\n            const timeout = this._timeout;\n            // set timer\n            const timer = this.setTimeoutFn(() => {\n                openSubDestroy();\n                onError(new Error(\"timeout\"));\n                socket.close();\n            }, timeout);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n        this.subs.push(openSubDestroy);\n        this.subs.push(errorSub);\n        return this;\n    }\n    /**\n     * Alias for open()\n     *\n     * @return self\n     * @public\n     */\n    connect(fn) {\n        return this.open(fn);\n    }\n    /**\n     * Called upon transport open.\n     *\n     * @private\n     */\n    onopen() {\n        // clear old subs\n        this.cleanup();\n        // mark as open\n        this._readyState = \"open\";\n        this.emitReserved(\"open\");\n        // add new subs\n        const socket = this.engine;\n        this.subs.push(on(socket, \"ping\", this.onping.bind(this)), on(socket, \"data\", this.ondata.bind(this)), on(socket, \"error\", this.onerror.bind(this)), on(socket, \"close\", this.onclose.bind(this)), on(this.decoder, \"decoded\", this.ondecoded.bind(this)));\n    }\n    /**\n     * Called upon a ping.\n     *\n     * @private\n     */\n    onping() {\n        this.emitReserved(\"ping\");\n    }\n    /**\n     * Called with data.\n     *\n     * @private\n     */\n    ondata(data) {\n        try {\n            this.decoder.add(data);\n        }\n        catch (e) {\n            this.onclose(\"parse error\", e);\n        }\n    }\n    /**\n     * Called when parser fully decodes a packet.\n     *\n     * @private\n     */\n    ondecoded(packet) {\n        // the nextTick call prevents an exception in a user-provided event listener from triggering a disconnection due to a \"parse error\"\n        nextTick(() => {\n            this.emitReserved(\"packet\", packet);\n        }, this.setTimeoutFn);\n    }\n    /**\n     * Called upon socket error.\n     *\n     * @private\n     */\n    onerror(err) {\n        this.emitReserved(\"error\", err);\n    }\n    /**\n     * Creates a new socket for the given `nsp`.\n     *\n     * @return {Socket}\n     * @public\n     */\n    socket(nsp, opts) {\n        let socket = this.nsps[nsp];\n        if (!socket) {\n            socket = new Socket(this, nsp, opts);\n            this.nsps[nsp] = socket;\n        }\n        else if (this._autoConnect && !socket.active) {\n            socket.connect();\n        }\n        return socket;\n    }\n    /**\n     * Called upon a socket close.\n     *\n     * @param socket\n     * @private\n     */\n    _destroy(socket) {\n        const nsps = Object.keys(this.nsps);\n        for (const nsp of nsps) {\n            const socket = this.nsps[nsp];\n            if (socket.active) {\n                return;\n            }\n        }\n        this._close();\n    }\n    /**\n     * Writes a packet.\n     *\n     * @param packet\n     * @private\n     */\n    _packet(packet) {\n        const encodedPackets = this.encoder.encode(packet);\n        for (let i = 0; i < encodedPackets.length; i++) {\n            this.engine.write(encodedPackets[i], packet.options);\n        }\n    }\n    /**\n     * Clean up transport subscriptions and packet buffer.\n     *\n     * @private\n     */\n    cleanup() {\n        this.subs.forEach((subDestroy) => subDestroy());\n        this.subs.length = 0;\n        this.decoder.destroy();\n    }\n    /**\n     * Close the current socket.\n     *\n     * @private\n     */\n    _close() {\n        this.skipReconnect = true;\n        this._reconnecting = false;\n        this.onclose(\"forced close\");\n        if (this.engine)\n            this.engine.close();\n    }\n    /**\n     * Alias for close()\n     *\n     * @private\n     */\n    disconnect() {\n        return this._close();\n    }\n    /**\n     * Called upon engine close.\n     *\n     * @private\n     */\n    onclose(reason, description) {\n        this.cleanup();\n        this.backoff.reset();\n        this._readyState = \"closed\";\n        this.emitReserved(\"close\", reason, description);\n        if (this._reconnection && !this.skipReconnect) {\n            this.reconnect();\n        }\n    }\n    /**\n     * Attempt a reconnection.\n     *\n     * @private\n     */\n    reconnect() {\n        if (this._reconnecting || this.skipReconnect)\n            return this;\n        const self = this;\n        if (this.backoff.attempts >= this._reconnectionAttempts) {\n            this.backoff.reset();\n            this.emitReserved(\"reconnect_failed\");\n            this._reconnecting = false;\n        }\n        else {\n            const delay = this.backoff.duration();\n            this._reconnecting = true;\n            const timer = this.setTimeoutFn(() => {\n                if (self.skipReconnect)\n                    return;\n                this.emitReserved(\"reconnect_attempt\", self.backoff.attempts);\n                // check again for the case socket closed in above events\n                if (self.skipReconnect)\n                    return;\n                self.open((err) => {\n                    if (err) {\n                        self._reconnecting = false;\n                        self.reconnect();\n                        this.emitReserved(\"reconnect_error\", err);\n                    }\n                    else {\n                        self.onreconnect();\n                    }\n                });\n            }, delay);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n    }\n    /**\n     * Called upon successful reconnect.\n     *\n     * @private\n     */\n    onreconnect() {\n        const attempt = this.backoff.attempts;\n        this._reconnecting = false;\n        this.backoff.reset();\n        this.emitReserved(\"reconnect\", attempt);\n    }\n}\n", "import { url } from \"./url.js\";\nimport { Manager } from \"./manager.js\";\nimport { Socket } from \"./socket.js\";\n/**\n * Managers cache.\n */\nconst cache = {};\nfunction lookup(uri, opts) {\n    if (typeof uri === \"object\") {\n        opts = uri;\n        uri = undefined;\n    }\n    opts = opts || {};\n    const parsed = url(uri, opts.path || \"/socket.io\");\n    const source = parsed.source;\n    const id = parsed.id;\n    const path = parsed.path;\n    const sameNamespace = cache[id] && path in cache[id][\"nsps\"];\n    const newConnection = opts.forceNew ||\n        opts[\"force new connection\"] ||\n        false === opts.multiplex ||\n        sameNamespace;\n    let io;\n    if (newConnection) {\n        io = new Manager(source, opts);\n    }\n    else {\n        if (!cache[id]) {\n            cache[id] = new Manager(source, opts);\n        }\n        io = cache[id];\n    }\n    if (parsed.query && !opts.query) {\n        opts.query = parsed.queryKey;\n    }\n    return io.socket(parsed.path, opts);\n}\n// so that \"lookup\" can be used both as a function (e.g. `io(...)`) and as a\n// namespace (e.g. `io.connect(...)`), for backward compatibility\nObject.assign(lookup, {\n    Manager,\n    Socket,\n    io: lookup,\n    connect: lookup,\n});\n/**\n * Protocol version.\n *\n * @public\n */\nexport { protocol } from \"socket.io-parser\";\n/**\n * Expose constructors for standalone build.\n *\n * @public\n */\nexport { Manager, Socket, lookup as io, lookup as connect, lookup as default, };\n", "/** A zero dependency web component that will display a managed uibuilder variable.\n *\n * Version: 1.0.1 2023-12-27\n */\n/*\n  Copyright (c) 2023-2024 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n// const template = document.createElement('template')\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<link type=\"text/css\" rel=\"stylesheet\" href=\"\"../uibuilder/uib-brand.min.css\"\" media=\"all\"><span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`\n// {/* <style>@import url(\"../uibuilder/uib-brand.min.css\");</style><span></span> */}\n// `\n\nexport default class UibVar extends HTMLElement {\n    //#region --- Class Properties ---\n    /** @type {string} Name of the uibuilder mangaged variable to use */\n    variable\n    /** Current value of the watched variable */\n    value\n    /** Whether to output if the variable is undefined */\n    undef = false\n    /** Whether to send update value to Node-RED on change */\n    report = false\n    /** What is the value type */\n    type = 'plain'\n    /** what are the available types? */\n    types = ['plain', 'html', 'markdown', 'object']\n    /** Holds uibuilder.onTopic listeners */\n    topicMonitors = {}\n    /** Is UIBUILDER loaded? */\n    uib = !!window['uibuilder']\n\n    /** Mini jQuery-like shadow dom selector (see constructor) */\n    $\n\n    /** Holds a count of how many instances of this component are on the page */\n    static _iCount = 0\n    /** @type {Array<string>} List of all of the html attribs (props) listened to */\n    static props = ['filter', 'id', 'name', 'report', 'topic', 'type', 'undefined', 'variable',]\n    //#endregion --- Class Properties ---\n\n    constructor() {\n        super()\n        this.shadow = this.attachShadow({ mode: 'open', delegatesFocus: true })\n        //  .append(template.content.cloneNode(true))\n\n        this.$ = this.shadowRoot.querySelector.bind(this.shadowRoot)\n\n        // Apply external styles to the shadow dom - assumes you use index.css in same url location as main url\n        this.css = document.createElement('link')\n        this.css.setAttribute('type', 'text/css')\n        this.css.setAttribute('rel', 'stylesheet')\n        this.css.setAttribute('href', './index.css')\n\n        this.dispatchEvent(new Event('uib-var:construction', { bubbles: true, composed: true }))\n    }\n\n    // Makes HTML attribute change watched\n    static get observedAttributes() {\n        return UibVar.props\n    }\n\n    /** Handle watched attributes\n     * NOTE: On initial startup, this is called for each watched attrib set in HTML - BEFORE connectedCallback is called.\n     * Attribute values can only ever be strings\n     * @param {string} attrib The name of the attribute that is changing\n     * @param {string} newVal The new value of the attribute\n     * @param {string} oldVal The old value of the attribute\n     */\n    attributeChangedCallback(attrib, oldVal, newVal) {\n        if ( oldVal === newVal ) return\n\n        switch (attrib) {\n            case 'variable': {\n                // NB Doesn't check if var exists because it might not be set yet\n                if (newVal === '') throw new Error('[uib-var] Attribute \"variable\" MUST be set to a UIBUILDER managed variable name')\n                this.variable = newVal\n                this.doWatch()\n                break\n            }\n            case 'undefined': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.undef = true\n                else this.undef = false\n                break\n            }\n            case 'report': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.report = true\n                else this.report = false\n                break\n            }\n            case 'type': {\n                if (newVal === '' || !this.types.includes(newVal.toLowerCase())) this.type = 'plain'\n                else this.type = newVal\n                break\n            }\n            case 'topic': {\n                // console.log(1, attrib, newVal)\n                // Handle empty topic\n                if (!newVal) break\n                // Ignore if not using uibuilder\n                if (!this.uib) break\n                // If variable attrib set, give warning and ignore\n                if (this.variable) {\n                    console.warn('\u26A0\uFE0F [uib-var] Cannot process both variable and topic attributes, use only 1. Using variable')\n                    break\n                }\n\n                this.topic = newVal\n\n                // Cancel old listener just in case\n                if (this.topicMonitors[newVal]) uibuilder.cancelTopic(newVal, this.topicMonitors[newVal])\n                // Set up a uibuilder listener for this topic - ASSUMES msg.payload contains the VALUE to show\n                this.topicMonitors[newVal] = uibuilder.onTopic(newVal, (msg) => {\n                    // console.log('topicMonitor ', newVal, msg)\n                    this.value = msg.payload\n                    this.varDom()\n                    if (this.report === true) window['uibuilder'].send({ topic: this.variable, payload: this.value || undefined })\n                })\n                this.varDom()\n\n                break\n            }\n            case 'filter': {\n                this.filter = undefined\n                this.filterArgs = []\n\n                // Handle empty filter\n                if (!newVal) break\n\n                this.filter = newVal\n\n                // Filter the input - at least limit the length of the attr\n                newVal = newVal.slice(0, 127)\n                // Remove spaces and then separate fn name from potential extra arguments\n                const f = newVal.replace(/\\s/g, '').match(/([a-zA-Z_$][a-zA-Z_$0-9.-]+)(\\((.*)\\))?/)\n                if (!f) {\n                    console.warn(`\u26A0\uFE0F [uib-var] Filter function \"${newVal}\" invalid. Cannot process.`)\n                    break\n                }\n                // Fn name\n                this.filter = f[1]\n                // Fn arguments\n                if (f[3]) { // undefined if no args found\n                    // TODO Do we really want to try this?\n                    try {\n                        this.filterArgs = JSON.parse(f[3])\n                    } catch (e) {}\n\n                    this.filterArgs = f[3].split(',').map((x) => {\n                        // No objects/arrays allowed - if they have a , they are split\n                        x = x.trim()\n                        // @ts-ignore NB: Do NOT use Number.isNaN here, it is too narrow minded\n                        if (isNaN(x)) {\n                            // String inside string ends up double quoted so remove those\n                            let y = x.replace(/^[\"'`]/, '').replace(/[\"'`]$/, '')\n                            // Attempt very limited parse in case it is valid object/array\n                            try {\n                                y = new Function(`return ${y}`)() // eslint-disable-line no-new-func\n                            } catch (e) {}\n                            return y\n                        }\n                        return Number(x)\n                    })\n                }\n\n                // Apply the filter directly if neither variable nor topic attribs set\n                if (!this.variable && !this.topic) this.varDom(false)\n                break\n            }\n\n            default: {\n                this[attrib] = newVal\n                break\n            }\n        }\n    } // --- end of attributeChangedCallback --- //\n\n    // Runs when an instance is added to the DOM\n    connectedCallback() {\n        // Make sure instance has an ID. Create an id from name or calculation if needed\n        if (!this.id) {\n            if (!this.name) this.name = this.getAttribute('name')\n            if (this.name) this.id = this.name.toLowerCase().replace(/\\s/g, '_')\n            else this.id = `uib-var-${++UibVar._iCount}`\n        }\n    }  // ---- end of connectedCallback ---- //\n\n    // Runs when an instance is removed from the DOM\n    disconnectedCallback() {\n        // Ignore if not using uibuilder\n        if (this.uib) {\n            Object.keys(this.topicMonitors).forEach( topic => {\n                uibuilder.cancelTopic(topic, this.topicMonitors[topic])\n            })\n        }\n    } // ---- end of disconnectedCallback ---- //\n\n    /** Process changes to the required uibuilder variable */\n    doWatch() {\n        if (!this.variable) throw new Error('No variable name provided')\n        // if (!this.uib) throw new Error('UIBUILDER client library not loaded - this component must be loaded AFTER the UIBUILDER library')\n\n        this.value = window['uibuilder'].get(this.variable)\n        this.varDom()\n\n        // Watch for changes in the variable\n        window['uibuilder'].onChange(this.variable, (val) => {\n            this.value = val\n            this.varDom()\n            if (this.report === true) window['uibuilder'].send({ topic: this.variable, payload: this.value || undefined })\n        })\n    }\n\n    /** Convert this.value to DOM output (applies output filter if needed)\n     * @param {boolean} chkVal If true (default), check for undefined value. False used to run filter even with no value set.\n     */\n    varDom(chkVal = true) {\n        // If user doesn't want to show undefined vars, allow the component slot to show instead\n        if (chkVal === true && !this.value && this.undef !== true) {\n            this.shadow.innerHTML = '<slot></slot>'\n            return\n        }\n\n        // Apply the filter to the value before display\n        const val = chkVal ? this.doFilter(this.value) : this.doFilter()\n\n        // console.log('\uD83E\uDDEA varDOM: ', val, typeof val, this.type)\n\n        let out = val\n\n        switch (this.type) {\n            case 'markdown': {\n                if (this.uib) out = window['uibuilder'].convertMarkdown(val)\n                break\n            }\n\n            case 'object': {\n                // console.log(window['uibuilder'].syntaxHighlight(val))\n                out = `<pre class=\"syntax-highlight\">${this.uib ? window['uibuilder'].syntaxHighlight(val) : val}</pre>`\n                break\n            }\n\n            case 'plain':\n            case 'html':\n            default: {\n                const t = typeof val\n                if (Array.isArray(val) || t === '[object Object]' || t === 'object') {\n                    try {\n                        out = JSON.stringify(val)\n                    } catch (e) {}\n                }\n                break\n            }\n        }\n        if (this.uib) this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(out)\n        else this.shadow.innerHTML = out\n\n        this.shadow.appendChild(this.css)\n    }\n\n    /** Apply value filter if specified\n     * @param {*} value The value to change\n     * @returns {*} The amended value that will be displayed\n     */\n    doFilter(value) {\n        if (this.filter) {\n            // Cater for dotted notation functions (e.g. uibuilder.get)\n            const splitFilter = this.filter.split('.')\n            let globalFn = globalThis[splitFilter[0]]\n            if (globalFn && splitFilter.length > 1) {\n                const parts = [splitFilter.pop()]\n                parts.forEach( part => {\n                    globalFn = globalFn[part]\n                } )\n            }\n            if (!globalFn && this.uib === true) globalFn = globalThis['uibuilder'][splitFilter[0]]\n            if (globalFn && typeof globalFn !== 'function' ) globalFn = undefined\n            if (globalFn) {\n                const argList = value === undefined ? [...this.filterArgs] : [value, ...this.filterArgs]\n                value = Reflect.apply(globalFn, value ?? globalFn, argList)\n            } else {\n                console.warn(`\u26A0\uFE0F [uib-var] Filter function \"${this.filter}\" ${typeof globalFn === 'object' ? 'is an object not a function' : 'not found'}`)\n            }\n        }\n\n        return value\n    }\n}\n\n// Add the class as a new Custom Element to the window object\n// customElements.define('uib-var', UibVar)\n"],
+  "mappings": 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"parts", "parse", "str", "src", "b", "e", "m", "uri", "i", "pathNames", "queryKey", "obj", "path", "regx", "names", "query", "data", "$0", "$1", "$2", "Socket", "_Socket", "Emitter", "uri", "opts", "defaultBinaryType", "parse", "installTimerFunctions", "decode", "name", "query", "protocol", "transports", "transport", "reason", "failed", "onTransportOpen", "msg", "cleanup", "err", "freezeTransport", "onerror", "error", "onTransportClose", "onclose", "onupgrade", "to", "i", "l", "packet", "data", "packets", "payloadSize", "byteLength", "options", "fn", "type", "close", "cleanupAndClose", "waitForUpgrade", "description", "upgrades", "filteredUpgrades", "j", "protocol", "Socket", "url", "uri", "path", "loc", "obj", "parse", "host", "esm_exports", "__export", "Decoder", "Encoder", "PacketType", "protocol", "withNativeArrayBuffer", "isView", "obj", "toString", "withNativeBlob", "withNativeFile", "isBinary", "hasBinary", "toJSON", "i", "l", "key", "deconstructPacket", "packet", "buffers", "packetData", "pack", "_deconstructPacket", "data", "isBinary", "placeholder", "newData", "key", "reconstructPacket", "_reconstructPacket", "i", "RESERVED_EVENTS", "protocol", "PacketType", "Encoder", "replacer", "obj", "hasBinary", "str", "deconstruction", "deconstructPacket", "pack", "buffers", "isObject", "value", "Decoder", "_Decoder", "Emitter", "reviver", "packet", "isBinaryEvent", "BinaryReconstructor", "isBinary", "i", "p", "start", "buf", "next", "c", "payload", "type", "binData", "reconstructPacket", "on", "obj", "ev", "fn", "RESERVED_EVENTS", "Socket", "Emitter", "io", "nsp", "opts", "on", "args", "ev", "packet", "PacketType", "id", "ack", "isTransportWritable", "_a", "timeout", "timer", "i", "withErr", "resolve", "reject", "arg1", "arg2", "err", "responseArgs", "force", "data", "reason", "description", "listeners", "listener", "self", "sent", "pid", "subDestroy", "compress", "Backoff", "opts", "ms", "rand", "deviation", "min", "max", "jitter", "Manager", "Emitter", "uri", "opts", "_a", "installTimerFunctions", "Backoff", "_parser", "esm_exports", "v", "fn", "Socket", "socket", "self", "openSubDestroy", "on", "onError", "err", "errorSub", "timeout", "timer", "data", "e", "packet", "nextTick", "nsp", "nsps", "encodedPackets", "subDestroy", "reason", "description", "delay", "attempt", "cache", "lookup", "uri", "opts", "parsed", "url", "source", "id", "path", "sameNamespace", "newConnection", "io", "Manager", "Socket", "_UibVar", "__publicField", "attrib", "oldVal", "newVal", "msg", "f", "x", "y", "topic", "val", "chkVal", "out", "t", "value", "splitFilter", "globalFn", "part", "argList", "UibVar", "version", "isMinified", "param", "logLevel", "LOG_STYLES", "log", "args", "level", "strLevel", "head", "makeMeAnObject", "thing", "property", "out", "urlJoin", "e", "syntaxHighlight", "json", "match", "cls", "_ui", "Ui", "_a", "_pingInterval", "_propChangeCallbacks", "_msgRecvdByTopicCallbacks", "_timerid", "_MsgHandler", "_isShowMsg", "_isShowStatus", "_sendUrlHash", "_extCommands", "_managedVars", "_showStatus", "_uiObservers", "Uib", "__publicField", "__privateAdd", "cb", "c", "splitC", "event", "__privateGet", "fullPath", "autoloadVars", "id", "prop", "val", "store", "autoload", "value", "autoVars", "title", "details", "callback", "nextCbRef", "propChangeCallback", "cbRef", "topic", "msgRecvdEvtCallback", "msg", "receivedMsg", "serverTimestamp", "offset", "varToCopy", "data", "cssSelector", "el", "exists", "decimalPlaces", "intl", "opts", "url", "originator", "ms", "oReq", "headers", "elapsedTime", "__privateSet", "deflt", "ret", "toggle", "mdText", "uiOptions", "textFn", "component", "html", "type", "ui", "propName", "showHide", "parent", "slot", "config", "res", "err", "root", "entry", "startStop", "send", "showLog", "targetNode", "that", "mutationList", "mu", "oMu", "an", "i", "htmlCache", "receivedCtrlMsg", "obj", "r", "msgToSend", "channel", "numMsgs", "cmd", "quiet", "response", "info", "newUrl", "txtToSend", "domevent", "target", "props", "key", "ignoreAttribs", "attribs", "name", "form", "frmVals", "frmEl", "v", "classes", "payload", "nprops", "room", "ioNamespace", "u", "t", "delay", "factor", "depth", "reason", "lookup", "options", "eMsg", "uibuilder", "uibuilder_module_default", "uibuilder", "UibVar"]
 }
diff --git a/front-end/uibuilder.iife.js b/front-end/uibuilder.iife.js
index d32a5693..5a387757 100644
--- a/front-end/uibuilder.iife.js
+++ b/front-end/uibuilder.iife.js
@@ -5005,6 +5005,7 @@
           }
         }
       });
+      // --- End of elementIsVisible --- //
       //#endregion -------- -------- -------- //
       //#region ------- UI handlers --------- //
       //#region -- Direct to _ui --
@@ -5353,6 +5354,102 @@
         }
       }
     }
+    /** Set up an event listener to watch for hash changes
+     * and set the watchable urlHash variable
+     */
+    _watchHashChanges() {
+      this.set("urlHash", location.hash);
+      window.addEventListener("hashchange", (event2) => {
+        this.set("urlHash", location.hash);
+        if (__privateGet(this, _sendUrlHash) === true) {
+          this.send({ topic: "hashChange", payload: location.hash, newHash: this.keepHashFromUrl(event2.newURL), oldHash: this.keepHashFromUrl(event2.oldURL) });
+        }
+      });
+    }
+    /** Copies a uibuilder variable to the browser clipboard
+     * @param {string} varToCopy The name of the uibuilder variable to copy to the clipboard
+     */
+    copyToClipboard(varToCopy) {
+      let data = "";
+      try {
+        data = JSON.stringify(this.get(varToCopy));
+      } catch (e) {
+        log("error", "copyToClipboard", `Could not copy "${varToCopy}" to clipboard.`, e.message)();
+      }
+      navigator.clipboard.writeText(data);
+    }
+    // --- End of copyToClipboard --- //
+    /** Does the chosen CSS Selector currently exist?
+     * Automatically sends a msg back to Node-RED unless turned off.
+     * @param {string} cssSelector Required. CSS Selector to examine for visibility
+     * @param {boolean} [msg] Optional, default=true. If true also sends a message back to Node-RED
+     * @returns {boolean} True if the element exists
+     */
+    elementExists(cssSelector, msg = true) {
+      const el = document.querySelector(cssSelector);
+      let exists = false;
+      if (el !== null)
+        exists = true;
+      if (msg === true) {
+        this.send({
+          payload: exists,
+          info: `Element "${cssSelector}" ${exists ? "exists" : "does not exist"}`
+        });
+      }
+      return exists;
+    }
+    // --- End of elementExists --- //
+    /** Format a number using the INTL standard library - compatible with uib-var filter function
+     * @param {number} value Number to format
+     * @param {number} decimalPlaces Number of decimal places to include. Default=no default
+     * @param {string} intl standard locale spec, e.g. "ja-JP" or "en-GB". Default=navigator.language
+     * @param {object} opts INTL library options object. Optional
+     * @returns {string} formatted number
+     * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/toLocaleString
+     */
+    formatNumber(value2, decimalPlaces, intl, opts) {
+      if (isNaN(value2)) {
+        log("error", "formatNumber", `Value must be a number. Value type: "${typeof value2}"`)();
+        return "NaN";
+      }
+      if (!opts)
+        opts = {};
+      if (!intl)
+        intl = navigator.language ? navigator.language : "en-GB";
+      if (decimalPlaces) {
+        opts.minimumFractionDigits = decimalPlaces;
+        opts.maximumFractionDigits = decimalPlaces;
+      }
+      let out;
+      try {
+        out = Number(value2).toLocaleString(intl, opts);
+      } catch (e) {
+        log("error", "formatNumber", `${e.message}. value=${value2}, dp=${decimalPlaces}, intl="${intl}", opts=${JSON.stringify(opts)}`)();
+        return "NaN";
+      }
+      return out;
+    }
+    /** Only keep the URL Hash & ignoring query params
+     * @param {string} url URL to extract the hash from
+     * @returns {string} Just the route id
+     */
+    keepHashFromUrl(url2) {
+      if (!url2)
+        return "";
+      return "#" + url2.replace(/^.*#(.*)/, "$1").replace(/\?.*$/, "");
+    }
+    log() {
+      log(...arguments)();
+    }
+    /** Navigate to a new page or a new route (hash)
+     * @param {string} url URL to navigate to. Can be absolute or relative (to current page) or just a hash for a route change
+     * @returns {Location} The new window.location string
+     */
+    navigate(url2) {
+      if (url2)
+        window.location.href = url2;
+      return window.location;
+    }
     /** Set the default originator. Set to '' to ignore. Used with uib-sender.
      * @param {string} [originator] A Node-RED node ID to return the message to
      */
@@ -5397,9 +5494,6 @@
       }
     }
     // ---- End of ping ---- //
-    log() {
-      log(...arguments)();
-    }
     /** Convert JSON to Syntax Highlighted HTML
      * @param {object} json A JSON/JavaScript Object
      * @returns {html} Object reformatted as highlighted HTML
@@ -5408,74 +5502,6 @@
       return syntaxHighlight(json);
     }
     // --- End of syntaxHighlight --- //
-    /** Copies a uibuilder variable to the browser clipboard
-     * @param {string} varToCopy The name of the uibuilder variable to copy to the clipboard
-     */
-    copyToClipboard(varToCopy) {
-      let data = "";
-      try {
-        data = JSON.stringify(this.get(varToCopy));
-      } catch (e) {
-        log("error", "copyToClipboard", `Could not copy "${varToCopy}" to clipboard.`, e.message)();
-      }
-      navigator.clipboard.writeText(data);
-    }
-    // --- End of copyToClipboard --- //
-    /** DEPRECATED FOR NOW - wasn't working properly.
-     * Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.
-     * Requires IntersectionObserver (available to all mainstream browsers from early 2019)
-     * Automatically sends a msg back to Node-RED.
-     * Requires the element to already exist.
-     * @returns {false} False if not visible
-     */
-    elementIsVisible() {
-      const info = "elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex";
-      log("error", "uib:elementIsVisible", info)();
-      this.send({ payload: "elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex" });
-      return false;
-    }
-    // --- End of elementIsVisible --- //
-    /** Does the chosen CSS Selector currently exist?
-     * Automatically sends a msg back to Node-RED unless turned off.
-     * @param {string} cssSelector Required. CSS Selector to examine for visibility
-     * @param {boolean} [msg] Optional, default=true. If true also sends a message back to Node-RED
-     * @returns {boolean} True if the element exists
-     */
-    elementExists(cssSelector, msg = true) {
-      const el = document.querySelector(cssSelector);
-      let exists = false;
-      if (el !== null)
-        exists = true;
-      if (msg === true) {
-        this.send({
-          payload: exists,
-          info: `Element "${cssSelector}" ${exists ? "exists" : "does not exist"}`
-        });
-      }
-      return exists;
-    }
-    // --- End of elementExists --- //
-    /** Only keep the URL Hash & ignoring query params
-     * @param {string} url URL to extract the hash from
-     * @returns {string} Just the route id
-     */
-    keepHashFromUrl(url2) {
-      if (!url2)
-        return "";
-      return "#" + url2.replace(/^.*#(.*)/, "$1").replace(/\?.*$/, "");
-    }
-    /** Set up an event listener to watch for hash changes
-     * and set the watchable urlHash variable
-     */
-    _watchHashChanges() {
-      this.set("urlHash", location.hash);
-      window.addEventListener("hashchange", (event2) => {
-        this.set("urlHash", location.hash);
-        if (__privateGet(this, _sendUrlHash) === true) {
-          this.send({ topic: "hashChange", payload: location.hash, newHash: this.keepHashFromUrl(event2.newURL), oldHash: this.keepHashFromUrl(event2.oldURL) });
-        }
-      });
-    }
     /** Returns true/false or a default value for truthy/falsy and other values
      * @param {string|number|boolean|*} val The value to test
      * @param {any} deflt Default value to use if the value is not truthy/falsy
@@ -5499,44 +5525,18 @@
       __privateSet(this, _sendUrlHash, this.truthy(toggle, __privateGet(this, _sendUrlHash) !== true));
       return __privateGet(this, _sendUrlHash);
     }
-    /** Navigate to a new page or a new route (hash)
-     * @param {string} url URL to navigate to. Can be absolute or relative (to current page) or just a hash for a route change
-     * @returns {Location} The new window.location string
-     */
-    navigate(url2) {
-      if (url2)
-        window.location.href = url2;
-      return window.location;
-    }
-    /** Format a number using the INTL standard library - compatible with uib-var filter function
-     * @param {number} value Number to format
-     * @param {number} decimalPlaces Number of decimal places to include. Default=no default
-     * @param {string} intl standard locale spec, e.g. "ja-JP" or "en-GB". Default=navigator.language
-     * @param {object} opts INTL library options object. Optional
-     * @returns {string} formatted number
-     * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/toLocaleString
+    /** DEPRECATED FOR NOW - wasn't working properly.
+     * Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.
+     * Requires IntersectionObserver (available to all mainstream browsers from early 2019)
+     * Automatically sends a msg back to Node-RED.
+     * Requires the element to already exist.
+     * @returns {false} False if not visible
      */
-    formatNumber(value2, decimalPlaces, intl, opts) {
-      if (isNaN(value2)) {
-        log("error", "formatNumber", `Value must be a number. Value type: "${typeof value2}"`)();
-        return "NaN";
-      }
-      if (!opts)
-        opts = {};
-      if (!intl)
-        intl = navigator.language ? navigator.language : "en-GB";
-      if (decimalPlaces) {
-        opts.minimumFractionDigits = decimalPlaces;
-        opts.maximumFractionDigits = decimalPlaces;
-      }
-      let out;
-      try {
-        out = Number(value2).toLocaleString(intl, opts);
-      } catch (e) {
-        log("error", "formatNumber", `${e.message}. value=${value2}, dp=${decimalPlaces}, intl="${intl}", opts=${JSON.stringify(opts)}`)();
-        return "NaN";
-      }
-      return out;
+    elementIsVisible() {
+      const info = "elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex";
+      log("error", "uib:elementIsVisible", info)();
+      this.send({ payload: "elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex" });
+      return false;
     }
     /** Converts markdown text input to HTML if the Markdown-IT library is loaded
      * Otherwise simply returns the text
@@ -6464,6 +6464,7 @@ ${document.documentElement.outerHTML}`;
       this._send(msg, this._ioChannels.client, originator);
     }
     // ! TODO: Rooms do not auto-reconnect. Add tracking and update _onConnect
+    // ! TODO: Add receipt handler on joining a room.
     // NOTE: Rooms only understood by server not client so we have to use custom emits
     //       They do not auto-reconnect
     /** Send a msg to a pre-defined Socket.IO room
diff --git a/front-end/uibuilder.iife.min.js b/front-end/uibuilder.iife.min.js
index c2df4357..4c604699 100644
--- a/front-end/uibuilder.iife.min.js
+++ b/front-end/uibuilder.iife.min.js
@@ -1,2 +1,2 @@
-(()=>{var _t=Object.create;var le=Object.defineProperty;var Et=Object.getOwnPropertyDescriptor;var Ct=Object.getOwnPropertyNames;var St=Object.getPrototypeOf,xt=Object.prototype.hasOwnProperty;var Nt=(s,e,t)=>e in s?le(s,e,{enumerable:!0,configurable:!0,writable:!0,value:t}):s[e]=t;var Me=(s=>typeof require<"u"?require:typeof Proxy<"u"?new Proxy(s,{get:(e,t)=>(typeof require<"u"?require:e)[t]}):s)(function(s){if(typeof require<"u")return require.apply(this,arguments);throw Error('Dynamic require of "'+s+'" is not supported')});var Ot=(s,e)=>()=>(e||s((e={exports:{}}).exports,e),e.exports),Rt=(s,e)=>{for(var t in e)le(s,t,{get:e[t],enumerable:!0})},At=(s,e,t,i)=>{if(e&&typeof e=="object"||typeof e=="function")for(let r of Ct(e))!xt.call(s,r)&&r!==t&&le(s,r,{get:()=>e[r],enumerable:!(i=Et(e,r))||i.enumerable});return s};var Ee=(s,e,t)=>(t=s!=null?_t(St(s)):{},At(e||!s||!s.__esModule?le(t,"default",{value:s,enumerable:!0}):t,s));var l=(s,e,t)=>(Nt(s,typeof e!="symbol"?e+"":e,t),t),Be=(s,e,t)=>{if(!e.has(s))throw TypeError("Cannot "+t)};var u=(s,e,t)=>(Be(s,e,"read from private field"),t?t.call(s):e.get(s)),C=(s,e,t)=>{if(e.has(s))throw TypeError("Cannot add the same private member more than once");e instanceof WeakSet?e.add(s):e.set(s,t)},A=(s,e,t,i)=>(Be(s,e,"write to private field"),i?i.call(s,t):e.set(s,t),t);var qe=Ot((ii,Pe)=>{var f,$t=(f=class{constructor(e,t,i){l(this,"version","6.8.0-src");l(this,"sanitiseExtraTags",["uib-var"]);l(this,"sanitiseExtraAttribs",["variable","report","undefined"]);l(this,"window");if(e)this.window=e;else throw new Error("Ui:constructor. 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n(){i||(i=!0,g(),t.close(),t=null)}let o=x=>{let _=new Error("probe error: "+x);_.transport=t.name,n(),this.emitReserved("upgradeError",_)};function c(){o("transport closed")}function h(){o("socket closed")}function d(x){t&&x.name!==t.name&&n()}let g=()=>{t.removeListener("open",r),t.removeListener("error",o),t.removeListener("close",c),this.off("close",h),this.off("upgrading",d)};t.once("open",r),t.once("error",o),t.once("close",c),this.once("close",h),this.once("upgrading",d),this.upgrades.indexOf("webtransport")!==-1&&e!=="webtransport"?this.setTimeoutFn(()=>{i||t.open()},200):t.open()}onOpen(){if(this.readyState="open",s.priorWebsocketSuccess=this.transport.name==="websocket",this.emitReserved("open"),this.flush(),this.readyState==="open"&&this.opts.upgrade){let 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error");t.code=e.data,this.onError(t);break;case"message":this.emitReserved("data",e.data),this.emitReserved("message",e.data);break}}onHandshake(e){this.emitReserved("handshake",e),this.id=e.sid,this.transport.query.sid=e.sid,this.upgrades=this.filterUpgrades(e.upgrades),this.pingInterval=e.pingInterval,this.pingTimeout=e.pingTimeout,this.maxPayload=e.maxPayload,this.onOpen(),this.readyState!=="closed"&&this.resetPingTimeout()}resetPingTimeout(){this.clearTimeoutFn(this.pingTimeoutTimer),this.pingTimeoutTimer=this.setTimeoutFn(()=>{this.onClose("ping timeout")},this.pingInterval+this.pingTimeout),this.opts.autoUnref&&this.pingTimeoutTimer.unref()}onDrain(){this.writeBuffer.splice(0,this.prevBufferLen),this.prevBufferLen=0,this.writeBuffer.length===0?this.emitReserved("drain"):this.flush()}flush(){if(this.readyState!=="closed"&&this.transport.writable&&!this.upgrading&&this.writeBuffer.length){let e=this.getWritablePackets();this.transport.send(e),this.prevBufferLen=e.length,this.emitReserved("flush")}}getWritablePackets(){if(!(this.maxPayload&&this.transport.name==="polling"&&this.writeBuffer.length>1))return this.writeBuffer;let t=1;for(let i=0;i<this.writeBuffer.length;i++){let r=this.writeBuffer[i].data;if(r&&(t+=tt(r)),i>0&&t>this.maxPayload)return this.writeBuffer.slice(0,i);t+=2}return this.writeBuffer}write(e,t,i){return this.sendPacket("message",e,t,i),this}send(e,t,i){return this.sendPacket("message",e,t,i),this}sendPacket(e,t,i,r){if(typeof t=="function"&&(r=t,t=void 0),typeof i=="function"&&(r=i,i=null),this.readyState==="closing"||this.readyState==="closed")return;i=i||{},i.compress=i.compress!==!1;let n={type:e,data:t,options:i};this.emitReserved("packetCreate",n),this.writeBuffer.push(n),r&&this.once("flush",r),this.flush()}close(){let e=()=>{this.onClose("forced close"),this.transport.close()},t=()=>{this.off("upgrade",t),this.off("upgradeError",t),e()},i=()=>{this.once("upgrade",t),this.once("upgradeError",t)};return(this.readyState==="opening"||this.readyState==="open")&&(this.readyState="closing",this.writeBuffer.length?this.once("drain",()=>{this.upgrading?i():e()}):this.upgrading?i():e()),this}onError(e){s.priorWebsocketSuccess=!1,this.emitReserved("error",e),this.onClose("transport error",e)}onClose(e,t){(this.readyState==="opening"||this.readyState==="open"||this.readyState==="closing")&&(this.clearTimeoutFn(this.pingTimeoutTimer),this.transport.removeAllListeners("close"),this.transport.close(),this.transport.removeAllListeners(),typeof removeEventListener=="function"&&(removeEventListener("beforeunload",this.beforeunloadEventListener,!1),removeEventListener("offline",this.offlineEventListener,!1)),this.readyState="closed",this.id=null,this.emitReserved("close",e,t),this.writeBuffer=[],this.prevBufferLen=0)}filterUpgrades(e){let t=[],i=0,r=e.length;for(;i<r;i++)~this.transports.indexOf(e[i])&&t.push(e[i]);return t}};B.protocol=xe;var us=B.protocol;function ft(s,e="",t){let i=s;t=t||typeof location<"u"&&location,s==null&&(s=t.protocol+"//"+t.host),typeof s=="string"&&(s.charAt(0)==="/"&&(s.charAt(1)==="/"?s=t.protocol+s:s=t.host+s),/^(https?|wss?):\/\//.test(s)||(typeof t<"u"?s=t.protocol+"//"+s:s="https://"+s),i=j(s)),i.port||(/^(http|ws)$/.test(i.protocol)?i.port="80":/^(http|ws)s$/.test(i.protocol)&&(i.port="443")),i.path=i.path||"/";let n=i.host.indexOf(":")!==-1?"["+i.host+"]":i.host;return i.id=i.protocol+"://"+n+":"+i.port+e,i.href=i.protocol+"://"+n+(t&&t.port===i.port?"":":"+i.port),i}var Ie={};Rt(Ie,{Decoder:()=>Le,Encoder:()=>Te,PacketType:()=>p,protocol:()=>yt});var Kt=typeof ArrayBuffer=="function",Jt=s=>typeof ArrayBuffer.isView=="function"?ArrayBuffer.isView(s):s.buffer instanceof ArrayBuffer,pt=Object.prototype.toString,zt=typeof Blob=="function"||typeof Blob<"u"&&pt.call(Blob)==="[object BlobConstructor]",Gt=typeof File=="function"||typeof File<"u"&&pt.call(File)==="[object FileConstructor]";function se(s){return Kt&&(s instanceof ArrayBuffer||Jt(s))||zt&&s instanceof Blob||Gt&&s instanceof File}function ie(s,e){if(!s||typeof s!="object")return!1;if(Array.isArray(s)){for(let t=0,i=s.length;t<i;t++)if(ie(s[t]))return!0;return!1}if(se(s))return!0;if(s.toJSON&&typeof s.toJSON=="function"&&arguments.length===1)return ie(s.toJSON(),!0);for(let t in s)if(Object.prototype.hasOwnProperty.call(s,t)&&ie(s[t]))return!0;return!1}function mt(s){let e=[],t=s.data,i=s;return i.data=Ae(t,e),i.attachments=e.length,{packet:i,buffers:e}}function Ae(s,e){if(!s)return s;if(se(s)){let t={_placeholder:!0,num:e.length};return e.push(s),t}else if(Array.isArray(s)){let t=new Array(s.length);for(let i=0;i<s.length;i++)t[i]=Ae(s[i],e);return t}else if(typeof s=="object"&&!(s instanceof Date)){let t={};for(let i in s)Object.prototype.hasOwnProperty.call(s,i)&&(t[i]=Ae(s[i],e));return t}return s}function bt(s,e){return s.data=$e(s.data,e),delete s.attachments,s}function $e(s,e){if(!s)return s;if(s&&s._placeholder===!0){if(typeof s.num=="number"&&s.num>=0&&s.num<e.length)return e[s.num];throw new Error("illegal attachments")}else if(Array.isArray(s))for(let t=0;t<s.length;t++)s[t]=$e(s[t],e);else if(typeof s=="object")for(let t in s)Object.prototype.hasOwnProperty.call(s,t)&&(s[t]=$e(s[t],e));return s}var Yt=["connect","connect_error","disconnect","disconnecting","newListener","removeListener"],yt=5,p;(function(s){s[s.CONNECT=0]="CONNECT",s[s.DISCONNECT=1]="DISCONNECT",s[s.EVENT=2]="EVENT",s[s.ACK=3]="ACK",s[s.CONNECT_ERROR=4]="CONNECT_ERROR",s[s.BINARY_EVENT=5]="BINARY_EVENT",s[s.BINARY_ACK=6]="BINARY_ACK"})(p||(p={}));var Te=class{constructor(e){this.replacer=e}encode(e){return(e.type===p.EVENT||e.type===p.ACK)&&ie(e)?this.encodeAsBinary({type:e.type===p.EVENT?p.BINARY_EVENT:p.BINARY_ACK,nsp:e.nsp,data:e.data,id:e.id}):[this.encodeAsString(e)]}encodeAsString(e){let t=""+e.type;return(e.type===p.BINARY_EVENT||e.type===p.BINARY_ACK)&&(t+=e.attachments+"-"),e.nsp&&e.nsp!=="/"&&(t+=e.nsp+","),e.id!=null&&(t+=e.id),e.data!=null&&(t+=JSON.stringify(e.data,this.replacer)),t}encodeAsBinary(e){let t=mt(e),i=this.encodeAsString(t.packet),r=t.buffers;return r.unshift(i),r}};function gt(s){return Object.prototype.toString.call(s)==="[object Object]"}var Le=class s extends y{constructor(e){super(),this.reviver=e}add(e){let t;if(typeof e=="string"){if(this.reconstructor)throw new Error("got plaintext data when reconstructing a packet");t=this.decodeString(e);let i=t.type===p.BINARY_EVENT;i||t.type===p.BINARY_ACK?(t.type=i?p.EVENT:p.ACK,this.reconstructor=new Ue(t),t.attachments===0&&super.emitReserved("decoded",t)):super.emitReserved("decoded",t)}else if(se(e)||e.base64)if(this.reconstructor)t=this.reconstructor.takeBinaryData(e),t&&(this.reconstructor=null,super.emitReserved("decoded",t));else throw new Error("got binary data when not reconstructing a packet");else throw new Error("Unknown type: "+e)}decodeString(e){let t=0,i={type:Number(e.charAt(0))};if(p[i.type]===void 0)throw new Error("unknown packet type "+i.type);if(i.type===p.BINARY_EVENT||i.type===p.BINARY_ACK){let n=t+1;for(;e.charAt(++t)!=="-"&&t!=e.length;);let o=e.substring(n,t);if(o!=Number(o)||e.charAt(t)!=="-")throw new Error("Illegal attachments");i.attachments=Number(o)}if(e.charAt(t+1)==="/"){let n=t+1;for(;++t&&!(e.charAt(t)===","||t===e.length););i.nsp=e.substring(n,t)}else i.nsp="/";let r=e.charAt(t+1);if(r!==""&&Number(r)==r){let n=t+1;for(;++t;){let o=e.charAt(t);if(o==null||Number(o)!=o){--t;break}if(t===e.length)break}i.id=Number(e.substring(n,t+1))}if(e.charAt(++t)){let n=this.tryParse(e.substr(t));if(s.isPayloadValid(i.type,n))i.data=n;else throw new Error("invalid payload")}return i}tryParse(e){try{return JSON.parse(e,this.reviver)}catch{return!1}}static isPayloadValid(e,t){switch(e){case p.CONNECT:return gt(t);case p.DISCONNECT:return t===void 0;case p.CONNECT_ERROR:return typeof t=="string"||gt(t);case p.EVENT:case p.BINARY_EVENT:return Array.isArray(t)&&(typeof t[0]=="number"||typeof t[0]=="string"&&Yt.indexOf(t[0])===-1);case p.ACK:case p.BINARY_ACK:return Array.isArray(t)}}destroy(){this.reconstructor&&(this.reconstructor.finishedReconstruction(),this.reconstructor=null)}},Ue=class{constructor(e){this.packet=e,this.buffers=[],this.reconPack=e}takeBinaryData(e){if(this.buffers.push(e),this.buffers.length===this.reconPack.attachments){let t=bt(this.reconPack,this.buffers);return this.finishedReconstruction(),t}return null}finishedReconstruction(){this.reconPack=null,this.buffers=[]}};function S(s,e,t){return s.on(e,t),function(){s.off(e,t)}}var Xt=Object.freeze({connect:1,connect_error:1,disconnect:1,disconnecting:1,newListener:1,removeListener:1}),W=class extends y{constructor(e,t,i){super(),this.connected=!1,this.recovered=!1,this.receiveBuffer=[],this.sendBuffer=[],this._queue=[],this._queueSeq=0,this.ids=0,this.acks={},this.flags={},this.io=e,this.nsp=t,i&&i.auth&&(this.auth=i.auth),this._opts=Object.assign({},i),this.io._autoConnect&&this.open()}get disconnected(){return!this.connected}subEvents(){if(this.subs)return;let e=this.io;this.subs=[S(e,"open",this.onopen.bind(this)),S(e,"packet",this.onpacket.bind(this)),S(e,"error",this.onerror.bind(this)),S(e,"close",this.onclose.bind(this))]}get active(){return!!this.subs}connect(){return this.connected?this:(this.subEvents(),this.io._reconnecting||this.io.open(),this.io._readyState==="open"&&this.onopen(),this)}open(){return this.connect()}send(...e){return e.unshift("message"),this.emit.apply(this,e),this}emit(e,...t){if(Xt.hasOwnProperty(e))throw new Error('"'+e.toString()+'" is a reserved event name');if(t.unshift(e),this._opts.retries&&!this.flags.fromQueue&&!this.flags.volatile)return this._addToQueue(t),this;let i={type:p.EVENT,data:t};if(i.options={},i.options.compress=this.flags.compress!==!1,typeof t[t.length-1]=="function"){let o=this.ids++,c=t.pop();this._registerAckCallback(o,c),i.id=o}let r=this.io.engine&&this.io.engine.transport&&this.io.engine.transport.writable;return this.flags.volatile&&(!r||!this.connected)||(this.connected?(this.notifyOutgoingListeners(i),this.packet(i)):this.sendBuffer.push(i)),this.flags={},this}_registerAckCallback(e,t){var i;let r=(i=this.flags.timeout)!==null&&i!==void 0?i:this._opts.ackTimeout;if(r===void 0){this.acks[e]=t;return}let n=this.io.setTimeoutFn(()=>{delete this.acks[e];for(let o=0;o<this.sendBuffer.length;o++)this.sendBuffer[o].id===e&&this.sendBuffer.splice(o,1);t.call(this,new Error("operation has timed out"))},r);this.acks[e]=(...o)=>{this.io.clearTimeoutFn(n),t.apply(this,[null,...o])}}emitWithAck(e,...t){let i=this.flags.timeout!==void 0||this._opts.ackTimeout!==void 0;return new Promise((r,n)=>{t.push((o,c)=>i?o?n(o):r(c):r(o)),this.emit(e,...t)})}_addToQueue(e){let t;typeof e[e.length-1]=="function"&&(t=e.pop());let i={id:this._queueSeq++,tryCount:0,pending:!1,args:e,flags:Object.assign({fromQueue:!0},this.flags)};e.push((r,...n)=>i!==this._queue[0]?void 0:(r!==null?i.tryCount>this._opts.retries&&(this._queue.shift(),t&&t(r)):(this._queue.shift(),t&&t(null,...n)),i.pending=!1,this._drainQueue())),this._queue.push(i),this._drainQueue()}_drainQueue(e=!1){if(!this.connected||this._queue.length===0)return;let t=this._queue[0];t.pending&&!e||(t.pending=!0,t.tryCount++,this.flags=t.flags,this.emit.apply(this,t.args))}packet(e){e.nsp=this.nsp,this.io._packet(e)}onopen(){typeof this.auth=="function"?this.auth(e=>{this._sendConnectPacket(e)}):this._sendConnectPacket(this.auth)}_sendConnectPacket(e){this.packet({type:p.CONNECT,data:this._pid?Object.assign({pid:this._pid,offset:this._lastOffset},e):e})}onerror(e){this.connected||this.emitReserved("connect_error",e)}onclose(e,t){this.connected=!1,delete this.id,this.emitReserved("disconnect",e,t)}onpacket(e){if(e.nsp===this.nsp)switch(e.type){case p.CONNECT:e.data&&e.data.sid?this.onconnect(e.data.sid,e.data.pid):this.emitReserved("connect_error",new Error("It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)"));break;case p.EVENT:case p.BINARY_EVENT:this.onevent(e);break;case p.ACK:case p.BINARY_ACK:this.onack(e);break;case p.DISCONNECT:this.ondisconnect();break;case p.CONNECT_ERROR:this.destroy();let i=new Error(e.data.message);i.data=e.data.data,this.emitReserved("connect_error",i);break}}onevent(e){let t=e.data||[];e.id!=null&&t.push(this.ack(e.id)),this.connected?this.emitEvent(t):this.receiveBuffer.push(Object.freeze(t))}emitEvent(e){if(this._anyListeners&&this._anyListeners.length){let t=this._anyListeners.slice();for(let i of t)i.apply(this,e)}super.emit.apply(this,e),this._pid&&e.length&&typeof e[e.length-1]=="string"&&(this._lastOffset=e[e.length-1])}ack(e){let t=this,i=!1;return function(...r){i||(i=!0,t.packet({type:p.ACK,id:e,data:r}))}}onack(e){let t=this.acks[e.id];typeof t=="function"&&(t.apply(this,e.data),delete this.acks[e.id])}onconnect(e,t){this.id=e,this.recovered=t&&this._pid===t,this._pid=t,this.connected=!0,this.emitBuffered(),this.emitReserved("connect"),this._drainQueue(!0)}emitBuffered(){this.receiveBuffer.forEach(e=>this.emitEvent(e)),this.receiveBuffer=[],this.sendBuffer.forEach(e=>{this.notifyOutgoingListeners(e),this.packet(e)}),this.sendBuffer=[]}ondisconnect(){this.destroy(),this.onclose("io server disconnect")}destroy(){this.subs&&(this.subs.forEach(e=>e()),this.subs=void 0),this.io._destroy(this)}disconnect(){return this.connected&&this.packet({type:p.DISCONNECT}),this.destroy(),this.connected&&this.onclose("io client disconnect"),this}close(){return this.disconnect()}compress(e){return this.flags.compress=e,this}get volatile(){return this.flags.volatile=!0,this}timeout(e){return this.flags.timeout=e,this}onAny(e){return this._anyListeners=this._anyListeners||[],this._anyListeners.push(e),this}prependAny(e){return this._anyListeners=this._anyListeners||[],this._anyListeners.unshift(e),this}offAny(e){if(!this._anyListeners)return this;if(e){let t=this._anyListeners;for(let i=0;i<t.length;i++)if(e===t[i])return t.splice(i,1),this}else this._anyListeners=[];return this}listenersAny(){return this._anyListeners||[]}onAnyOutgoing(e){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.push(e),this}prependAnyOutgoing(e){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.unshift(e),this}offAnyOutgoing(e){if(!this._anyOutgoingListeners)return this;if(e){let t=this._anyOutgoingListeners;for(let i=0;i<t.length;i++)if(e===t[i])return t.splice(i,1),this}else this._anyOutgoingListeners=[];return this}listenersAnyOutgoing(){return this._anyOutgoingListeners||[]}notifyOutgoingListeners(e){if(this._anyOutgoingListeners&&this._anyOutgoingListeners.length){let t=this._anyOutgoingListeners.slice();for(let i of t)i.apply(this,e.data)}}};function P(s){s=s||{},this.ms=s.min||100,this.max=s.max||1e4,this.factor=s.factor||2,this.jitter=s.jitter>0&&s.jitter<=1?s.jitter:0,this.attempts=0}P.prototype.duration=function(){var s=this.ms*Math.pow(this.factor,this.attempts++);if(this.jitter){var e=Math.random(),t=Math.floor(e*this.jitter*s);s=Math.floor(e*10)&1?s+t:s-t}return Math.min(s,this.max)|0};P.prototype.reset=function(){this.attempts=0};P.prototype.setMin=function(s){this.ms=s};P.prototype.setMax=function(s){this.max=s};P.prototype.setJitter=function(s){this.jitter=s};var K=class extends y{constructor(e,t){var i;super(),this.nsps={},this.subs=[],e&&typeof e=="object"&&(t=e,e=void 0),t=t||{},t.path=t.path||"/socket.io",this.opts=t,T(this,t),this.reconnection(t.reconnection!==!1),this.reconnectionAttempts(t.reconnectionAttempts||1/0),this.reconnectionDelay(t.reconnectionDelay||1e3),this.reconnectionDelayMax(t.reconnectionDelayMax||5e3),this.randomizationFactor((i=t.randomizationFactor)!==null&&i!==void 0?i:.5),this.backoff=new P({min:this.reconnectionDelay(),max:this.reconnectionDelayMax(),jitter:this.randomizationFactor()}),this.timeout(t.timeout==null?2e4:t.timeout),this._readyState="closed",this.uri=e;let r=t.parser||Ie;this.encoder=new r.Encoder,this.decoder=new r.Decoder,this._autoConnect=t.autoConnect!==!1,this._autoConnect&&this.open()}reconnection(e){return arguments.length?(this._reconnection=!!e,this):this._reconnection}reconnectionAttempts(e){return e===void 0?this._reconnectionAttempts:(this._reconnectionAttempts=e,this)}reconnectionDelay(e){var t;return e===void 0?this._reconnectionDelay:(this._reconnectionDelay=e,(t=this.backoff)===null||t===void 0||t.setMin(e),this)}randomizationFactor(e){var t;return e===void 0?this._randomizationFactor:(this._randomizationFactor=e,(t=this.backoff)===null||t===void 0||t.setJitter(e),this)}reconnectionDelayMax(e){var t;return e===void 0?this._reconnectionDelayMax:(this._reconnectionDelayMax=e,(t=this.backoff)===null||t===void 0||t.setMax(e),this)}timeout(e){return arguments.length?(this._timeout=e,this):this._timeout}maybeReconnectOnOpen(){!this._reconnecting&&this._reconnection&&this.backoff.attempts===0&&this.reconnect()}open(e){if(~this._readyState.indexOf("open"))return this;this.engine=new B(this.uri,this.opts);let t=this.engine,i=this;this._readyState="opening",this.skipReconnect=!1;let r=S(t,"open",function(){i.onopen(),e&&e()}),n=c=>{this.cleanup(),this._readyState="closed",this.emitReserved("error",c),e?e(c):this.maybeReconnectOnOpen()},o=S(t,"error",n);if(this._timeout!==!1){let c=this._timeout,h=this.setTimeoutFn(()=>{r(),n(new 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Arg Type: ".concat(e.constructor.name),e)();return}e.preventDefault();let i=e.currentTarget,r={};Object.keys(i).forEach(b=>{b.startsWith("_")||(r[b]=i[b])});let n=["class","id","name"],o;try{o=Object.assign({},...Array.from(i.attributes,({name:b,value:_e})=>{if(!n.includes(b))return{[b]:_e}}))}catch{}let c,h=[];i.form&&(c={},c.valid=i.form.checkValidity(),Object.values(i.form).forEach((b,_e)=>{let V=b.id!==""?b.id:b.name!==""?b.name:"".concat(_e,"-").concat(b.type);if(V!==""&&b.type){if("checked"in b&&b.value==="on"&&(b.value=b.checked.toString()),h.push({key:V,val:b.value}),c[V]={id:b.id,name:b.name,value:b.value,valid:b.checkValidity(),type:b.type},c[V].valid===!1){let w=b.validity;c[V].validity={badInput:w.badInput===!0?w.badInput:void 0,customError:w.customError===!0?w.customError:void 0,patternMismatch:w.patternMismatch===!0?w.patternMismatch:void 0,rangeOverflow:w.rangeOverflow===!0?w.rangeOverflow:void 0,rangeUnderflow:w.rangeUnderflow===!0?w.rangeUnderflow:void 0,stepMismatch:w.stepMismatch===!0?w.stepMismatch:void 0,tooLong:w.tooLong===!0?w.tooLong:void 0,tooShort:w.tooShort===!0?w.tooShort:void 0,typeMismatch:w.typeMismatch===!0?w.typeMismatch:void 0,valueMissing:w.valueMissing===!0?w.valueMissing:void 0}}b.dataset&&(c[V].data=b.dataset)}}));let d;try{d=Array.from(i.classList)}catch{}let g={...i.dataset},x;Object.prototype.toString.call(i)==="[object Notification]"&&(g="notification-".concat(i.userAction),x={actions:i.actions,badge:i.badge,body:i.body,data:i.data,dir:i.dir,icon:i.icon,image:i.image,lang:i.lang,renotify:i.renotify,requireInteraction:i.requireInteraction,silent:i.silent,tag:i.tag,timestamp:i.timestamp,title:i.title,vibrate:i.vibrate});let _={payload:g,_ui:{type:"eventSend",id:i.id!==""?i.id:void 0,name:i.name!==""?i.name:void 0,slotText:i.textContent?i.textContent.substring(0,255):void 0,form:c,props:r,attribs:o,classes:d,notification:x,event:e.type,altKey:e.altKey,ctrlKey:e.ctrlKey,shiftKey:e.shiftKey,metaKey:e.metaKey,pointerType:e.pointerType,nodeName:i.nodeName,clientId:this.clientId,pageName:this.pageName,tabId:this.tabId}};h.length>0&&h.forEach(b=>{_.payload[b.key]=b.val}),e.type==="change"&&(_._ui.newValue=_.payload.value="checked"in i?i.checked:e.target.value),a("trace","Uib:eventSend","Sending msg to Node-RED",_)(),i.dataset&&i.dataset.length===0&&a("warn","Uib:eventSend","No payload in msg. data-* attributes should be used.")(),this._send(_,this._ioChannels.client,t)}send(e,t=""){this._send(e,this._ioChannels.client,t)}sendRoom(e,t){this._socket.emit("uib-room-send",e,t)}joinRoom(e){this._socket.emit("uib-room-join",e)}leaveRoom(e){this._socket.emit("uib-room-leave",e)}sendCtrl(e){this._send(e,this._ioChannels.control)}_getIOnamespace(){let e;if(e=this.cookies["uibuilder-namespace"],e===void 0||e===""){let t=window.location.pathname.split("/").filter(function(i){return i.trim()!==""});t.length>0&&t[t.length-1].endsWith(".html")&&t.pop(),e=t.pop(),a("trace","uibuilder.module.js:getIOnamespace","Socket.IO namespace found via url path: ".concat(e))()}else a("trace","uibuilder.module.js:getIOnamespace","Socket.IO namespace found via cookie: ".concat(e))();return this.url=e,e="/"+e,a("trace","uibuilder.module.js:getIOnamespace","Final Socket.IO namespace: ".concat(e))(),e}_checkConnect(e,t,i=1){if(navigator.onLine!==!1)return e||(e=this.retryMs),t||(t=this.retryFactor),a("trace","Uib:checkConnect","Checking connection. 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i=e[t],r=t===e.length-1;this.writer.write(i).then(()=>{r&&M(()=>{this.writable=!0,this.emitReserved("drain")},this.setTimeoutFn)})}}doClose(){var e;(e=this.transport)===null||e===void 0||e.close()}};var Re={websocket:ye,webtransport:we,polling:be};var Ft=/^(?:(?![^:@\/?#]+:[^:@\/]*@)(http|https|ws|wss):\/\/)?((?:(([^:@\/?#]*)(?::([^:@\/?#]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/,Vt=["source","protocol","authority","userInfo","user","password","host","port","relative","path","directory","file","query","anchor"];function j(s){if(s.length>2e3)throw"URI too long";let e=s,t=s.indexOf("["),i=s.indexOf("]");t!=-1&&i!=-1&&(s=s.substring(0,t)+s.substring(t,i).replace(/:/g,";")+s.substring(i,s.length));let r=Ft.exec(s||""),n={},o=14;for(;o--;)n[Vt[o]]=r[o]||"";return t!=-1&&i!=-1&&(n.source=e,n.host=n.host.substring(1,n.host.length-1).replace(/;/g,":"),n.authority=n.authority.replace("[","").replace("]","").replace(/;/g,":"),n.ipv6uri=!0),n.pathNames=jt(n,n.path),n.queryKey=Wt(n,n.query),n}function jt(s,e){let t=/\/{2,9}/g,i=e.replace(t,"/").split("/");return(e.slice(0,1)=="/"||e.length===0)&&i.splice(0,1),e.slice(-1)=="/"&&i.splice(i.length-1,1),i}function Wt(s,e){let t={};return e.replace(/(?:^|&)([^&=]*)=?([^&]*)/g,function(i,r,n){r&&(t[r]=n)}),t}var B=class s extends y{constructor(e,t={}){super(),this.binaryType=ut,this.writeBuffer=[],e&&typeof e=="object"&&(t=e,e=null),e?(e=j(e),t.hostname=e.host,t.secure=e.protocol==="https"||e.protocol==="wss",t.port=e.port,e.query&&(t.query=e.query)):t.host&&(t.hostname=j(t.host).host),T(this,t),this.secure=t.secure!=null?t.secure:typeof location<"u"&&location.protocol==="https:",t.hostname&&!t.port&&(t.port=this.secure?"443":"80"),this.hostname=t.hostname||(typeof location<"u"?location.hostname:"localhost"),this.port=t.port||(typeof location<"u"&&location.port?location.port:this.secure?"443":"80"),this.transports=t.transports||["polling","websocket","webtransport"],this.writeBuffer=[],this.prevBufferLen=0,this.opts=Object.assign({path:"/engine.io",agent:!1,withCredentials:!1,upgrade:!0,timestampParam:"t",rememberUpgrade:!1,addTrailingSlash:!0,rejectUnauthorized:!0,perMessageDeflate:{threshold:1024},transportOptions:{},closeOnBeforeunload:!1},t),this.opts.path=this.opts.path.replace(/\/$/,"")+(this.opts.addTrailingSlash?"/":""),typeof this.opts.query=="string"&&(this.opts.query=st(this.opts.query)),this.id=null,this.upgrades=null,this.pingInterval=null,this.pingTimeout=null,this.pingTimeoutTimer=null,typeof addEventListener=="function"&&(this.opts.closeOnBeforeunload&&(this.beforeunloadEventListener=()=>{this.transport&&(this.transport.removeAllListeners(),this.transport.close())},addEventListener("beforeunload",this.beforeunloadEventListener,!1)),this.hostname!=="localhost"&&(this.offlineEventListener=()=>{this.onClose("transport close",{description:"network connection lost"})},addEventListener("offline",this.offlineEventListener,!1))),this.open()}createTransport(e){let t=Object.assign({},this.opts.query);t.EIO=xe,t.transport=e,this.id&&(t.sid=this.id);let i=Object.assign({},this.opts,{query:t,socket:this,hostname:this.hostname,secure:this.secure,port:this.port},this.opts.transportOptions[e]);return new Re[e](i)}open(){let e;if(this.opts.rememberUpgrade&&s.priorWebsocketSuccess&&this.transports.indexOf("websocket")!==-1)e="websocket";else if(this.transports.length===0){this.setTimeoutFn(()=>{this.emitReserved("error","No transports available")},0);return}else e=this.transports[0];this.readyState="opening";try{e=this.createTransport(e)}catch{this.transports.shift(),this.open();return}e.open(),this.setTransport(e)}setTransport(e){this.transport&&this.transport.removeAllListeners(),this.transport=e,e.on("drain",this.onDrain.bind(this)).on("packet",this.onPacket.bind(this)).on("error",this.onError.bind(this)).on("close",t=>this.onClose("transport close",t))}probe(e){let t=this.createTransport(e),i=!1;s.priorWebsocketSuccess=!1;let r=()=>{i||(t.send([{type:"ping",data:"probe"}]),t.once("packet",x=>{if(!i)if(x.type==="pong"&&x.data==="probe"){if(this.upgrading=!0,this.emitReserved("upgrading",t),!t)return;s.priorWebsocketSuccess=t.name==="websocket",this.transport.pause(()=>{i||this.readyState!=="closed"&&(g(),this.setTransport(t),t.send([{type:"upgrade"}]),this.emitReserved("upgrade",t),t=null,this.upgrading=!1,this.flush())})}else{let _=new Error("probe error");_.transport=t.name,this.emitReserved("upgradeError",_)}}))};function n(){i||(i=!0,g(),t.close(),t=null)}let o=x=>{let _=new Error("probe error: "+x);_.transport=t.name,n(),this.emitReserved("upgradeError",_)};function c(){o("transport closed")}function h(){o("socket closed")}function d(x){t&&x.name!==t.name&&n()}let g=()=>{t.removeListener("open",r),t.removeListener("error",o),t.removeListener("close",c),this.off("close",h),this.off("upgrading",d)};t.once("open",r),t.once("error",o),t.once("close",c),this.once("close",h),this.once("upgrading",d),this.upgrades.indexOf("webtransport")!==-1&&e!=="webtransport"?this.setTimeoutFn(()=>{i||t.open()},200):t.open()}onOpen(){if(this.readyState="open",s.priorWebsocketSuccess=this.transport.name==="websocket",this.emitReserved("open"),this.flush(),this.readyState==="open"&&this.opts.upgrade){let e=0,t=this.upgrades.length;for(;e<t;e++)this.probe(this.upgrades[e])}}onPacket(e){if(this.readyState==="opening"||this.readyState==="open"||this.readyState==="closing")switch(this.emitReserved("packet",e),this.emitReserved("heartbeat"),this.resetPingTimeout(),e.type){case"open":this.onHandshake(JSON.parse(e.data));break;case"ping":this.sendPacket("pong"),this.emitReserved("ping"),this.emitReserved("pong");break;case"error":let t=new Error("server error");t.code=e.data,this.onError(t);break;case"message":this.emitReserved("data",e.data),this.emitReserved("message",e.data);break}}onHandshake(e){this.emitReserved("handshake",e),this.id=e.sid,this.transport.query.sid=e.sid,this.upgrades=this.filterUpgrades(e.upgrades),this.pingInterval=e.pingInterval,this.pingTimeout=e.pingTimeout,this.maxPayload=e.maxPayload,this.onOpen(),this.readyState!=="closed"&&this.resetPingTimeout()}resetPingTimeout(){this.clearTimeoutFn(this.pingTimeoutTimer),this.pingTimeoutTimer=this.setTimeoutFn(()=>{this.onClose("ping timeout")},this.pingInterval+this.pingTimeout),this.opts.autoUnref&&this.pingTimeoutTimer.unref()}onDrain(){this.writeBuffer.splice(0,this.prevBufferLen),this.prevBufferLen=0,this.writeBuffer.length===0?this.emitReserved("drain"):this.flush()}flush(){if(this.readyState!=="closed"&&this.transport.writable&&!this.upgrading&&this.writeBuffer.length){let e=this.getWritablePackets();this.transport.send(e),this.prevBufferLen=e.length,this.emitReserved("flush")}}getWritablePackets(){if(!(this.maxPayload&&this.transport.name==="polling"&&this.writeBuffer.length>1))return this.writeBuffer;let t=1;for(let i=0;i<this.writeBuffer.length;i++){let r=this.writeBuffer[i].data;if(r&&(t+=tt(r)),i>0&&t>this.maxPayload)return this.writeBuffer.slice(0,i);t+=2}return this.writeBuffer}write(e,t,i){return this.sendPacket("message",e,t,i),this}send(e,t,i){return this.sendPacket("message",e,t,i),this}sendPacket(e,t,i,r){if(typeof t=="function"&&(r=t,t=void 0),typeof i=="function"&&(r=i,i=null),this.readyState==="closing"||this.readyState==="closed")return;i=i||{},i.compress=i.compress!==!1;let n={type:e,data:t,options:i};this.emitReserved("packetCreate",n),this.writeBuffer.push(n),r&&this.once("flush",r),this.flush()}close(){let e=()=>{this.onClose("forced close"),this.transport.close()},t=()=>{this.off("upgrade",t),this.off("upgradeError",t),e()},i=()=>{this.once("upgrade",t),this.once("upgradeError",t)};return(this.readyState==="opening"||this.readyState==="open")&&(this.readyState="closing",this.writeBuffer.length?this.once("drain",()=>{this.upgrading?i():e()}):this.upgrading?i():e()),this}onError(e){s.priorWebsocketSuccess=!1,this.emitReserved("error",e),this.onClose("transport error",e)}onClose(e,t){(this.readyState==="opening"||this.readyState==="open"||this.readyState==="closing")&&(this.clearTimeoutFn(this.pingTimeoutTimer),this.transport.removeAllListeners("close"),this.transport.close(),this.transport.removeAllListeners(),typeof removeEventListener=="function"&&(removeEventListener("beforeunload",this.beforeunloadEventListener,!1),removeEventListener("offline",this.offlineEventListener,!1)),this.readyState="closed",this.id=null,this.emitReserved("close",e,t),this.writeBuffer=[],this.prevBufferLen=0)}filterUpgrades(e){let t=[],i=0,r=e.length;for(;i<r;i++)~this.transports.indexOf(e[i])&&t.push(e[i]);return t}};B.protocol=xe;var us=B.protocol;function ft(s,e="",t){let i=s;t=t||typeof location<"u"&&location,s==null&&(s=t.protocol+"//"+t.host),typeof s=="string"&&(s.charAt(0)==="/"&&(s.charAt(1)==="/"?s=t.protocol+s:s=t.host+s),/^(https?|wss?):\/\//.test(s)||(typeof t<"u"?s=t.protocol+"//"+s:s="https://"+s),i=j(s)),i.port||(/^(http|ws)$/.test(i.protocol)?i.port="80":/^(http|ws)s$/.test(i.protocol)&&(i.port="443")),i.path=i.path||"/";let n=i.host.indexOf(":")!==-1?"["+i.host+"]":i.host;return i.id=i.protocol+"://"+n+":"+i.port+e,i.href=i.protocol+"://"+n+(t&&t.port===i.port?"":":"+i.port),i}var Ie={};Rt(Ie,{Decoder:()=>Le,Encoder:()=>Te,PacketType:()=>p,protocol:()=>yt});var Kt=typeof ArrayBuffer=="function",Jt=s=>typeof ArrayBuffer.isView=="function"?ArrayBuffer.isView(s):s.buffer instanceof ArrayBuffer,pt=Object.prototype.toString,zt=typeof Blob=="function"||typeof Blob<"u"&&pt.call(Blob)==="[object BlobConstructor]",Gt=typeof File=="function"||typeof File<"u"&&pt.call(File)==="[object FileConstructor]";function se(s){return Kt&&(s instanceof ArrayBuffer||Jt(s))||zt&&s instanceof Blob||Gt&&s instanceof File}function ie(s,e){if(!s||typeof s!="object")return!1;if(Array.isArray(s)){for(let t=0,i=s.length;t<i;t++)if(ie(s[t]))return!0;return!1}if(se(s))return!0;if(s.toJSON&&typeof s.toJSON=="function"&&arguments.length===1)return ie(s.toJSON(),!0);for(let t in s)if(Object.prototype.hasOwnProperty.call(s,t)&&ie(s[t]))return!0;return!1}function mt(s){let e=[],t=s.data,i=s;return i.data=Ae(t,e),i.attachments=e.length,{packet:i,buffers:e}}function Ae(s,e){if(!s)return s;if(se(s)){let t={_placeholder:!0,num:e.length};return e.push(s),t}else if(Array.isArray(s)){let t=new Array(s.length);for(let i=0;i<s.length;i++)t[i]=Ae(s[i],e);return t}else if(typeof s=="object"&&!(s instanceof Date)){let t={};for(let i in s)Object.prototype.hasOwnProperty.call(s,i)&&(t[i]=Ae(s[i],e));return t}return s}function bt(s,e){return s.data=$e(s.data,e),delete s.attachments,s}function $e(s,e){if(!s)return s;if(s&&s._placeholder===!0){if(typeof s.num=="number"&&s.num>=0&&s.num<e.length)return e[s.num];throw new Error("illegal attachments")}else if(Array.isArray(s))for(let t=0;t<s.length;t++)s[t]=$e(s[t],e);else if(typeof s=="object")for(let t in s)Object.prototype.hasOwnProperty.call(s,t)&&(s[t]=$e(s[t],e));return s}var Yt=["connect","connect_error","disconnect","disconnecting","newListener","removeListener"],yt=5,p;(function(s){s[s.CONNECT=0]="CONNECT",s[s.DISCONNECT=1]="DISCONNECT",s[s.EVENT=2]="EVENT",s[s.ACK=3]="ACK",s[s.CONNECT_ERROR=4]="CONNECT_ERROR",s[s.BINARY_EVENT=5]="BINARY_EVENT",s[s.BINARY_ACK=6]="BINARY_ACK"})(p||(p={}));var Te=class{constructor(e){this.replacer=e}encode(e){return(e.type===p.EVENT||e.type===p.ACK)&&ie(e)?this.encodeAsBinary({type:e.type===p.EVENT?p.BINARY_EVENT:p.BINARY_ACK,nsp:e.nsp,data:e.data,id:e.id}):[this.encodeAsString(e)]}encodeAsString(e){let t=""+e.type;return(e.type===p.BINARY_EVENT||e.type===p.BINARY_ACK)&&(t+=e.attachments+"-"),e.nsp&&e.nsp!=="/"&&(t+=e.nsp+","),e.id!=null&&(t+=e.id),e.data!=null&&(t+=JSON.stringify(e.data,this.replacer)),t}encodeAsBinary(e){let t=mt(e),i=this.encodeAsString(t.packet),r=t.buffers;return r.unshift(i),r}};function gt(s){return Object.prototype.toString.call(s)==="[object Object]"}var Le=class s extends y{constructor(e){super(),this.reviver=e}add(e){let t;if(typeof e=="string"){if(this.reconstructor)throw new Error("got plaintext data when reconstructing a packet");t=this.decodeString(e);let i=t.type===p.BINARY_EVENT;i||t.type===p.BINARY_ACK?(t.type=i?p.EVENT:p.ACK,this.reconstructor=new Ue(t),t.attachments===0&&super.emitReserved("decoded",t)):super.emitReserved("decoded",t)}else if(se(e)||e.base64)if(this.reconstructor)t=this.reconstructor.takeBinaryData(e),t&&(this.reconstructor=null,super.emitReserved("decoded",t));else throw new Error("got binary data when not reconstructing a packet");else throw new Error("Unknown type: "+e)}decodeString(e){let t=0,i={type:Number(e.charAt(0))};if(p[i.type]===void 0)throw new Error("unknown packet type "+i.type);if(i.type===p.BINARY_EVENT||i.type===p.BINARY_ACK){let n=t+1;for(;e.charAt(++t)!=="-"&&t!=e.length;);let o=e.substring(n,t);if(o!=Number(o)||e.charAt(t)!=="-")throw new Error("Illegal attachments");i.attachments=Number(o)}if(e.charAt(t+1)==="/"){let n=t+1;for(;++t&&!(e.charAt(t)===","||t===e.length););i.nsp=e.substring(n,t)}else i.nsp="/";let r=e.charAt(t+1);if(r!==""&&Number(r)==r){let n=t+1;for(;++t;){let o=e.charAt(t);if(o==null||Number(o)!=o){--t;break}if(t===e.length)break}i.id=Number(e.substring(n,t+1))}if(e.charAt(++t)){let n=this.tryParse(e.substr(t));if(s.isPayloadValid(i.type,n))i.data=n;else throw new Error("invalid payload")}return i}tryParse(e){try{return JSON.parse(e,this.reviver)}catch{return!1}}static isPayloadValid(e,t){switch(e){case p.CONNECT:return gt(t);case p.DISCONNECT:return t===void 0;case p.CONNECT_ERROR:return typeof t=="string"||gt(t);case p.EVENT:case p.BINARY_EVENT:return Array.isArray(t)&&(typeof t[0]=="number"||typeof t[0]=="string"&&Yt.indexOf(t[0])===-1);case p.ACK:case p.BINARY_ACK:return Array.isArray(t)}}destroy(){this.reconstructor&&(this.reconstructor.finishedReconstruction(),this.reconstructor=null)}},Ue=class{constructor(e){this.packet=e,this.buffers=[],this.reconPack=e}takeBinaryData(e){if(this.buffers.push(e),this.buffers.length===this.reconPack.attachments){let t=bt(this.reconPack,this.buffers);return this.finishedReconstruction(),t}return null}finishedReconstruction(){this.reconPack=null,this.buffers=[]}};function S(s,e,t){return s.on(e,t),function(){s.off(e,t)}}var Xt=Object.freeze({connect:1,connect_error:1,disconnect:1,disconnecting:1,newListener:1,removeListener:1}),W=class extends y{constructor(e,t,i){super(),this.connected=!1,this.recovered=!1,this.receiveBuffer=[],this.sendBuffer=[],this._queue=[],this._queueSeq=0,this.ids=0,this.acks={},this.flags={},this.io=e,this.nsp=t,i&&i.auth&&(this.auth=i.auth),this._opts=Object.assign({},i),this.io._autoConnect&&this.open()}get disconnected(){return!this.connected}subEvents(){if(this.subs)return;let e=this.io;this.subs=[S(e,"open",this.onopen.bind(this)),S(e,"packet",this.onpacket.bind(this)),S(e,"error",this.onerror.bind(this)),S(e,"close",this.onclose.bind(this))]}get active(){return!!this.subs}connect(){return this.connected?this:(this.subEvents(),this.io._reconnecting||this.io.open(),this.io._readyState==="open"&&this.onopen(),this)}open(){return this.connect()}send(...e){return e.unshift("message"),this.emit.apply(this,e),this}emit(e,...t){if(Xt.hasOwnProperty(e))throw new Error('"'+e.toString()+'" is a reserved event name');if(t.unshift(e),this._opts.retries&&!this.flags.fromQueue&&!this.flags.volatile)return this._addToQueue(t),this;let i={type:p.EVENT,data:t};if(i.options={},i.options.compress=this.flags.compress!==!1,typeof t[t.length-1]=="function"){let o=this.ids++,c=t.pop();this._registerAckCallback(o,c),i.id=o}let r=this.io.engine&&this.io.engine.transport&&this.io.engine.transport.writable;return this.flags.volatile&&(!r||!this.connected)||(this.connected?(this.notifyOutgoingListeners(i),this.packet(i)):this.sendBuffer.push(i)),this.flags={},this}_registerAckCallback(e,t){var i;let r=(i=this.flags.timeout)!==null&&i!==void 0?i:this._opts.ackTimeout;if(r===void 0){this.acks[e]=t;return}let n=this.io.setTimeoutFn(()=>{delete this.acks[e];for(let o=0;o<this.sendBuffer.length;o++)this.sendBuffer[o].id===e&&this.sendBuffer.splice(o,1);t.call(this,new Error("operation has timed out"))},r);this.acks[e]=(...o)=>{this.io.clearTimeoutFn(n),t.apply(this,[null,...o])}}emitWithAck(e,...t){let i=this.flags.timeout!==void 0||this._opts.ackTimeout!==void 0;return new Promise((r,n)=>{t.push((o,c)=>i?o?n(o):r(c):r(o)),this.emit(e,...t)})}_addToQueue(e){let t;typeof e[e.length-1]=="function"&&(t=e.pop());let i={id:this._queueSeq++,tryCount:0,pending:!1,args:e,flags:Object.assign({fromQueue:!0},this.flags)};e.push((r,...n)=>i!==this._queue[0]?void 0:(r!==null?i.tryCount>this._opts.retries&&(this._queue.shift(),t&&t(r)):(this._queue.shift(),t&&t(null,...n)),i.pending=!1,this._drainQueue())),this._queue.push(i),this._drainQueue()}_drainQueue(e=!1){if(!this.connected||this._queue.length===0)return;let t=this._queue[0];t.pending&&!e||(t.pending=!0,t.tryCount++,this.flags=t.flags,this.emit.apply(this,t.args))}packet(e){e.nsp=this.nsp,this.io._packet(e)}onopen(){typeof 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Make sure that you wrap the call in a function: `doEvent: function (event) { uibuilder.eventSend(event) },`")();return}if(!e&&!event){a("warn","Uib:eventSend","Neither the domevent nor the hidden event properties are set. You probably called this function directly rather than applying to an on click event.")();return}if((!e||!e.constructor)&&(e=event),!e.constructor.name.endsWith("Event")||!e.currentTarget){a("warn","Uib:eventSend","ARGUMENT NOT A DOM EVENT - use data attributes not function arguments to pass data. Arg Type: ".concat(e.constructor.name),e)();return}e.preventDefault();let i=e.currentTarget,r={};Object.keys(i).forEach(b=>{b.startsWith("_")||(r[b]=i[b])});let n=["class","id","name"],o;try{o=Object.assign({},...Array.from(i.attributes,({name:b,value:_e})=>{if(!n.includes(b))return{[b]:_e}}))}catch{}let c,h=[];i.form&&(c={},c.valid=i.form.checkValidity(),Object.values(i.form).forEach((b,_e)=>{let V=b.id!==""?b.id:b.name!==""?b.name:"".concat(_e,"-").concat(b.type);if(V!==""&&b.type){if("checked"in b&&b.value==="on"&&(b.value=b.checked.toString()),h.push({key:V,val:b.value}),c[V]={id:b.id,name:b.name,value:b.value,valid:b.checkValidity(),type:b.type},c[V].valid===!1){let w=b.validity;c[V].validity={badInput:w.badInput===!0?w.badInput:void 0,customError:w.customError===!0?w.customError:void 0,patternMismatch:w.patternMismatch===!0?w.patternMismatch:void 0,rangeOverflow:w.rangeOverflow===!0?w.rangeOverflow:void 0,rangeUnderflow:w.rangeUnderflow===!0?w.rangeUnderflow:void 0,stepMismatch:w.stepMismatch===!0?w.stepMismatch:void 0,tooLong:w.tooLong===!0?w.tooLong:void 0,tooShort:w.tooShort===!0?w.tooShort:void 0,typeMismatch:w.typeMismatch===!0?w.typeMismatch:void 0,valueMissing:w.valueMissing===!0?w.valueMissing:void 0}}b.dataset&&(c[V].data=b.dataset)}}));let d;try{d=Array.from(i.classList)}catch{}let g={...i.dataset},x;Object.prototype.toString.call(i)==="[object Notification]"&&(g="notification-".concat(i.userAction),x={actions:i.actions,badge:i.badge,body:i.body,data:i.data,dir:i.dir,icon:i.icon,image:i.image,lang:i.lang,renotify:i.renotify,requireInteraction:i.requireInteraction,silent:i.silent,tag:i.tag,timestamp:i.timestamp,title:i.title,vibrate:i.vibrate});let _={payload:g,_ui:{type:"eventSend",id:i.id!==""?i.id:void 0,name:i.name!==""?i.name:void 0,slotText:i.textContent?i.textContent.substring(0,255):void 0,form:c,props:r,attribs:o,classes:d,notification:x,event:e.type,altKey:e.altKey,ctrlKey:e.ctrlKey,shiftKey:e.shiftKey,metaKey:e.metaKey,pointerType:e.pointerType,nodeName:i.nodeName,clientId:this.clientId,pageName:this.pageName,tabId:this.tabId}};h.length>0&&h.forEach(b=>{_.payload[b.key]=b.val}),e.type==="change"&&(_._ui.newValue=_.payload.value="checked"in i?i.checked:e.target.value),a("trace","Uib:eventSend","Sending msg to Node-RED",_)(),i.dataset&&i.dataset.length===0&&a("warn","Uib:eventSend","No payload in msg. data-* attributes should be used.")(),this._send(_,this._ioChannels.client,t)}send(e,t=""){this._send(e,this._ioChannels.client,t)}sendRoom(e,t){this._socket.emit("uib-room-send",e,t)}joinRoom(e){this._socket.emit("uib-room-join",e)}leaveRoom(e){this._socket.emit("uib-room-leave",e)}sendCtrl(e){this._send(e,this._ioChannels.control)}_getIOnamespace(){let e;if(e=this.cookies["uibuilder-namespace"],e===void 0||e===""){let t=window.location.pathname.split("/").filter(function(i){return i.trim()!==""});t.length>0&&t[t.length-1].endsWith(".html")&&t.pop(),e=t.pop(),a("trace","uibuilder.module.js:getIOnamespace","Socket.IO namespace found via url path: ".concat(e))()}else a("trace","uibuilder.module.js:getIOnamespace","Socket.IO namespace found via cookie: ".concat(e))();return this.url=e,e="/"+e,a("trace","uibuilder.module.js:getIOnamespace","Final Socket.IO namespace: ".concat(e))(),e}_checkConnect(e,t,i=1){if(navigator.onLine!==!1)return e||(e=this.retryMs),t||(t=this.retryFactor),a("trace","Uib:checkConnect","Checking connection. Connected: ".concat(this._socket.connected,". Timer: ").concat(u(this,k),". Depth: ").concat(i,". Delay: ").concat(e,". Factor: ").concat(t),this._socket)(),this._socket.connected===!0?(u(this,k)&&(window.clearTimeout(u(this,k)),A(this,k,null)),this.set("ioConnected",!0),this.set("socketError",null),!0):(this.set("ioConnected",!1),u(this,k)&&window.clearTimeout(u(this,k)),A(this,k,window.setTimeout(()=>{a("warn","Uib:checkConnect:setTimeout","Socket.IO reconnection attempt. Current delay: ".concat(e,". Depth: ").concat(i))(),this._socket.disconnect(),this._socket.connect(),A(this,k,null),this._checkConnect(e*t,t,i++)},e)),!1)}_onConnect(){a("info","Uib:ioSetup","\u2705 SOCKET CONNECTED. Connection count: ".concat(this.connectedNum,", Is a Recovery?: ").concat(this._socket.recovered,". \nNamespace: ").concat(this.ioNamespace))(),this._dispatchCustomEvent("uibuilder:socket:connected",{numConnections:this.connectedNum,isRecovery:this._socket.recovered}),this._checkConnect()}_onDisconnect(e){a("info","Uib:ioSetup:socket-disconnect","\u26D4 Socket Disconnected. Reason: ".concat(e))(),this._dispatchCustomEvent("uibuilder:socket:disconnected",e),this._checkConnect()}_ioSetup(){return q===void 0?(a("error","Uib:ioSetup","Socket.IO client not loaded, Node-RED comms will not work")(),!1):(this._socket&&(a("trace","Uib:ioSetup","Removing listeners in preparation for redoing Socket.IO connections")(),u(this,k)&&(window.clearTimeout(u(this,k)),A(this,k,null)),this._socket.close(),this._socket.offAny(),this._socket=void 0,this.set("ioConnected",!1)),this.socketOptions.path=this.ioPath,a("trace","Uib:ioSetup","About to create IO object. Transports: [".concat(this.socketOptions.transports.join(", "),"]"))(),this._socket=q(this.ioNamespace,this.socketOptions),this._connectGlobal(),this._socket.on("connect",this._onConnect.bind(this)),this._socket.on(this._ioChannels.server,this._stdMsgFromServer.bind(this)),this._socket.on(this._ioChannels.control,this._ctrlMsgFromServer.bind(this)),this._socket.on("disconnect",this._onDisconnect.bind(this)),this._socket.on("connect_error",e=>{navigator.onLine!==!1&&(a("error","Uib:ioSetup:connect_error","\u274C Socket.IO Connect Error. Reason: ".concat(e.message),e)(),this.set("ioConnected",!1),this.set("socketError",e),this._dispatchCustomEvent("uibuilder:socket:disconnected",e))}),this._socket.on("error",e=>{a("error","Uib:ioSetup:error","\u274C Socket.IO Error. Reason: ".concat(e.message),e)(),this.set("ioConnected",!1),this.set("socketError",e),this._dispatchCustomEvent("uibuilder:socket:disconnected",e)}),this._checkConnect(),!0)}_connectGlobal(){this._socketGlobal=q("/",this.socketOptions),this._socketGlobal.onAny((...e)=>{this.set("globalMsg",e.slice(0,-1))})}connect(){this._socket.connect()}disconnect(){this._socket.disconnect(),u(this,k)&&window.clearTimeout(u(this,k))}start(e){a("trace","Uib:start","Starting")(),u(this,oe)&&this.cancelChange("msg",u(this,oe)),this.started===!0&&a("info","Uib:start","Start function already called. Resetting Socket.IO and msg handler.")(),a("log","Uib:start","Cookies: ",this.cookies,"\nClient ID: ".concat(this.clientId))(),a("trace","Uib:start","ioNamespace: ",this.ioNamespace,"\nioPath: ".concat(this.ioPath))(),e&&(e.ioNamespace&&this.set("ioNamespace",e.ioNamespace),e.ioPath&&this.set("ioPath",e.ioPath),e.nopolling&&this.socketOptions.transports[0]==="polling"&&this.socketOptions.transports.shift()),document.styleSheets.length>=1||document.styleSheets.length===1&&document.styleSheets[0].cssRules.length===0?a("info","Uib:start","Styles already loaded so not loading uibuilder default styles.")():e&&e.loadStylesheet===!1?a("info","Uib:start","No styles loaded & options.loadStylesheet === false.")():(a("info","Uib:start","No styles loaded, loading uibuilder default styles.")(),this.loadStyleSrc("".concat(this.httpNodeRoot,"/uibuilder/uib-brand.min.css")));let[t]=performance.getEntriesByType("navigation");if(this.set("lastNavType",t.type),this.set("started",this._ioSetup()),this.started===!0?a("trace","Uib:start","Start completed. Socket.IO client library loaded.")():a("error","Uib:start","Start completed. ERROR: Socket.IO client library NOT LOADED.")(),this._watchHashChanges(),window.Vue){this.set("isVue",!0);try{this.set("vueVersion",window.Vue.version)}catch{}a("trace","Uib:start","VueJS is loaded. Version: ".concat(this.vueVersion))()}else a("trace","Uib:start","VueJS is not loaded.")();window.DOMPurify?(this.set("purify",!0),a("trace","Uib:start","DOMPurify is loaded.")()):a("trace","Uib:start","DOMPurify is not loaded.")(),window.markdownit?(this.set("markdown",!0),a("trace","Uib:start","Markdown-IT is loaded.")()):a("trace","Uib:start","Markdown-IT is not loaded.")(),this.onChange("msg",i=>{if(u(this,z)===!0){let r=document.getElementById("uib_last_msg");r&&(r.innerHTML=this.syntaxHighlight(i))}}),this._dispatchCustomEvent("uibuilder:startComplete")}},H=new WeakMap,O=new WeakMap,$=new WeakMap,k=new WeakMap,oe=new WeakMap,z=new WeakMap,G=new WeakMap,F=new WeakMap,ve=new WeakMap,ae=new WeakMap,ce=new WeakMap,D=new WeakMap,l(E,"_meta",{version:wt,type:"module",displayName:"uibuilder"}),E),ke=new ei;window.uibuilder?a("error","uibuilder.module.js","`uibuilder` already assigned to window. Have you tried to load it more than once?"):window.uibuilder=ke;window.uib?a("warn","uibuilder.module.js","`uib` shortcut already assigned to window."):window.uib=ke;window.$?a("warn","uibuilder.module.js","Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` or `uib.$` instead."):window.$=window.uibuilder.$;window.$$?a("warn","uibuilder.module.js","Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` or `uib.$$` instead."):window.$$=window.uibuilder.$$;window.$ui?a("warn","uibuilder.module.js","Cannot allocate the global `$ui`, it is already in use. Use `uibuilder.$ui` or `uib.$ui` instead."):window.$ui=window.uibuilder.$ui;var Js=ke;ke.start();customElements.define("uib-var",ne);})();
 //# sourceMappingURL=uibuilder.iife.min.js.map
diff --git a/front-end/uibuilder.iife.min.js.map b/front-end/uibuilder.iife.min.js.map
index 5d875cf5..9add4788 100644
--- a/front-end/uibuilder.iife.min.js.map
+++ b/front-end/uibuilder.iife.min.js.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
   "sources": ["src/front-end-module/ui.js", "src/front-end-module/uibuilder.module.js", "node_modules/engine.io-parser/build/esm/commons.js", "node_modules/engine.io-parser/build/esm/encodePacket.browser.js", "node_modules/engine.io-parser/build/esm/contrib/base64-arraybuffer.js", "node_modules/engine.io-parser/build/esm/decodePacket.browser.js", "node_modules/engine.io-parser/build/esm/index.js", "node_modules/@socket.io/component-emitter/index.mjs", "node_modules/engine.io-client/build/esm/globalThis.browser.js", "node_modules/engine.io-client/build/esm/util.js", "node_modules/engine.io-client/build/esm/contrib/parseqs.js", "node_modules/engine.io-client/build/esm/transport.js", "node_modules/engine.io-client/build/esm/contrib/yeast.js", "node_modules/engine.io-client/build/esm/contrib/has-cors.js", "node_modules/engine.io-client/build/esm/transports/xmlhttprequest.browser.js", "node_modules/engine.io-client/build/esm/transports/polling.js", "node_modules/engine.io-client/build/esm/transports/websocket-constructor.browser.js", "node_modules/engine.io-client/build/esm/transports/websocket.js", "node_modules/engine.io-client/build/esm/transports/webtransport.js", "node_modules/engine.io-client/build/esm/transports/index.js", "node_modules/engine.io-client/build/esm/contrib/parseuri.js", "node_modules/engine.io-client/build/esm/socket.js", "node_modules/engine.io-client/build/esm/index.js", "node_modules/socket.io-client/build/esm/url.js", "node_modules/socket.io-parser/build/esm/index.js", "node_modules/socket.io-parser/build/esm/is-binary.js", "node_modules/socket.io-parser/build/esm/binary.js", "node_modules/socket.io-client/build/esm/on.js", "node_modules/socket.io-client/build/esm/socket.js", "node_modules/socket.io-client/build/esm/contrib/backo2.js", "node_modules/socket.io-client/build/esm/manager.js", "node_modules/socket.io-client/build/esm/index.js", "src/components/uib-var.js"],
-  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\n// Namespaces - See https://stackoverflow.com/a/52572048/1309986\n// const NAMESPACES = {\n//     svg: 'http://www.w3.org/2000/svg',\n//     html: 'http://www.w3.org/1999/xhtml',\n//     xml: 'http://www.w3.org/XML/1998/namespace',\n//     xlink: 'http://www.w3.org/1999/xlink',\n//     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n// }\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    //#region ---- Internal Methods ----\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                if (attrib === 'class' && Array.isArray(comp.attributes[attrib])) comp.attributes[attrib].join(' ')\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n    } // --- end of _uiManager ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    //#endregion ---- -------- ----\n    //#region ---- External Methods ----\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {HTMLElement|null} Selected HTML element or null\n     */\n    $(cssSelector) {\n        /** @type {*} Some kind of HTML element */\n        let el = document.querySelector(cssSelector)\n\n        if (!el) {\n            Ui.log(1, 'Uib:$', `No element found for CSS selector ${cssSelector}`)()\n            return null\n        }\n\n        if ( el.nodeName === 'TEMPLATE' ) {\n            el = el.content.firstElementChild\n            if (!el) {\n                Ui.log(0, 'Uib:$', `Template selected for CSS selector ${cssSelector} but it is empty`)()\n                return null\n            }\n        }\n\n        return el\n    }\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {string} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {HTMLElement[]} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$(cssSelector) {\n        return Array.from(document.querySelectorAll(cssSelector))\n    }\n\n    /** Add 1 or several class names to an element\n     * @param {string|string[]} classNames Single or array of classnames\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    addClass(classNames, el) {\n        if (!Array.isArray(classNames)) classNames = [classNames]\n        if (el) el.classList.add(...classNames)\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n                if (attrib.name === 'class') thisOut.classes = Array.from(node.classList)\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    /** Remove All, 1 or more class names from an element\n     * @param {undefined|null|\"\"|string|string[]} classNames Single or array of classnames. If undefined, \"\" or null, remove all classes\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    removeClass(classNames, el) {\n        if (!classNames) {\n            el.removeAttribute('class')\n            return\n        }\n        if (!Array.isArray(classNames)) classNames = [classNames]\n        if (el) el.classList.remove(...classNames)\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += `<div>${msg.payload}</div>`\n        if (ui.content) content += `<div>${ui.content}</div>`\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        console.log(this)\n        this._uiManager(msg)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName) {\n                if (propName === 'classes') propName = 'class'\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    const p = {}\n                    // Nightmare of different object types in a DOM Element!\n                    const cType = prop.constructor.name.toLowerCase()\n                    if (cType === 'namednodemap') {\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                    } else if (!cType.includes('map')) { // Ordinary properties (not a mapped type)\n                        p[propName] = prop\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                    }\n                    if (p.class) p.classes = Array.from(node.classList)\n                    out.push(p)\n                }\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    /** External alias for _uiComposeComponent\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    //#endregion ---- -------- ----\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n", "/* This is the Front-End JavaScript for uibuilder  in HTML Module form\n  It provides a number of global objects that can be used in your own javascript.\n  see the docs folder `./docs/uibuilder.module.md` for details of how to use this fully.\n\n  Please use the default index.js file for your own code and leave this as-is.\n  See Uib._meta for client version string\n\n  Copyright (c) 2022-2024 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n//#region --- Type Defs --- //\n/**\n * A string containing HTML markup\n * @typedef {string} html\n */\n//#endregion --- Type Defs --- //\n\n// We need the Socket.IO & ui libraries & the uib-var component  --- //\n// @ts-ignore - Note: Only works when using esbuild to bundle\nimport Ui from './ui'\nimport io from 'socket.io-client'\nimport UibVar from '../components/uib-var'\n\nconst version = '6.8.0-src'\n\n// TODO Add option to allow log events to be sent back to Node-RED as uib ctrl msgs\n//#region --- Module-level utility functions --- //\n\n// @ts-ignore Detect whether the loaded library is minified or not\nconst isMinified = !(/param/).test(function (param) { }) // eslint-disable-line no-unused-vars\n\n//#region --- print/console - debugging output functions --- //\n\n/** Default log level - Error & Warn */\nlet logLevel = isMinified ? 0 : 1  // When using minified lib, assume production and only log errors otherwise also log warn\n// function changeLogLevel(level) {\n//     logLevel = level\n//     console.trace = logLevel < 4 ? function(){} : console.trace\n//     console.debug = logLevel < 2 ? function(){} : console.debug\n//     if ( logLevel < 1 ) {\n//         console.log = console.group = console.groupEnd =  function(){}\n//     }\n// }\n\n// Experimental\nconst LOG_STYLES = {\n    // 0\n    error: {\n        css: 'background: red; color: black;',\n        txtCss: 'color: red; ',\n        pre: '\u26D4 ',\n        console: 'error',  // or trace\n    },\n    // 1\n    warn: {\n        css: 'background: darkorange; color: black;',\n        txtCss: 'color: darkorange; ',\n        pre: '\u26A0 ',\n        console: 'warn',\n    },\n    // 2\n    info: {\n        css: 'background: aqua; color: black;',\n        txtCss: 'color: aqua;',\n        pre: '\u2757 ',\n        console: 'info',\n    },\n    // 3\n    log: {\n        css: 'background: grey; color: yellow;',\n        txtCss: 'color: grey;',\n        pre: '',\n        console: 'log',\n    },\n    // 4\n    debug: {\n        css: 'background: chartreuse; color: black;',\n        txtCss: 'color: chartreuse;',\n        pre: '',\n        console: 'debug',\n    },\n    // 5\n    trace: {\n        css: 'background: indigo; color: yellow;',\n        txtCss: 'color: hotpink;',\n        pre: '',\n        console: 'log',\n    },\n\n    names: ['error', 'warn', 'info', 'log', 'debug', 'trace'],\n    reset: 'color: inherit;',\n    head: 'font-weight:bold; font-style:italic;',\n    level: 'font-weight:bold; border-radius: 3px; padding: 2px 5px; display:inline-block;',\n}\n/** Custom logging. e.g. log(2, 'here:there', 'jiminy', {fred:'jim'})()\n * @returns {Function} Log function @example log(2, 'here:there', 'jiminy', {fred:'jim'})()\n */\nfunction log() {\n    // Get the args\n    const args = Array.prototype.slice.call(arguments)\n\n    // 1st arg is the log level/type\n    let level = args.shift()\n    let strLevel\n    switch (level) {\n        case 'trace':\n        case 5: {\n            if (logLevel < 5) break\n            level = 5 // make sure level is numeric\n            strLevel = 'trace'\n            break\n        }\n\n        case 'debug':\n        case 4: {\n            if (logLevel < 4) break\n            level = 4\n            strLevel = 'debug'\n            break\n        }\n\n        case 'log':\n        case 3: {\n            if (logLevel < 3) break\n            level = 3\n            strLevel = 'log'\n            break\n        }\n\n        case 'info':\n        case '':\n        case 2: {\n            if (logLevel < 2) break\n            level = 2\n            strLevel = 'info'\n            break\n        }\n\n        case 'warn':\n        case 1: {\n            if (logLevel < 1) break\n            level = 1\n            strLevel = 'warn'\n            break\n        }\n\n        case 'error':\n        case 'err':\n        case 0: {\n            if (logLevel < 0) break\n            level = 0\n            strLevel = 'error'\n            break\n        }\n\n        default: {\n            level = -1\n            break\n        }\n\n    }\n\n    // If set to something unknown, no log output\n    if (strLevel === undefined) return function () { }\n\n    // 2nd arg is a heading that will be colour highlighted\n    const head = args.shift()\n\n    // Bind back to console.log (could use console[strLevel] but some levels ignore some formatting, use console.xxx directly or dedicated fn)\n    return Function.prototype.bind.call(\n        console[LOG_STYLES[strLevel].console],\n        console,\n        `%c${LOG_STYLES[strLevel].pre}${strLevel}%c [${head}]`, `${LOG_STYLES.level} ${LOG_STYLES[strLevel].css}`, `${LOG_STYLES.head} ${LOG_STYLES[strLevel].txtCss}`,\n        ...args\n    )\n}\n//#endregion\n\n/** A hack to dynamically load a remote module and wait until it is loaded\n * @param {string} url The URL of the module to load\n * @returns {object|null} Either the result object or null (if the load fails)\n */\n// function loadModule(url) { // eslint-disable-line no-unused-vars\n//     let done\n\n//     import(url)\n//         .then(res => {\n//             log('debug', '>> then >>', res)()\n//             done = res\n//         })\n//         .catch(err => {\n//             console.error(`[uibuilder:loadModule] Could not load module ${url}`, err)\n//             done = null\n//         })\n\n//     //  eslint-disable-next-line no-empty\n//     while (!done) { } // eslint-disable-line no-unmodified-loop-condition\n\n//     return done\n// }\n\n/** Makes a null or non-object into an object\n * If not null, moves \"thing\" to {payload:thing}\n *\n * @param {*} thing Thing to check\n * @param {string} [property='payload'] property that \"thing\" is moved to if not null and not an object\n * @returns {!object} _\n */\nfunction makeMeAnObject(thing, property) {\n    if (!property) property = 'payload'\n    if (typeof property !== 'string') {\n        log('warn', 'uibuilderfe:makeMeAnObject', `WARNING: property parameter must be a string and not: ${typeof property}`)()\n        property = 'payload'\n    }\n    let out = {}\n    if ( thing !== null && thing.constructor.name === 'Object' ) {\n        out = thing\n    } else if (thing !== null) {\n        out[property] = thing\n    }\n    return out\n} // --- End of make me an object --- //\n\n/** Joins all arguments as a URL string\n * see http://stackoverflow.com/a/28592528/3016654\n * since v1.0.10, fixed potential double // issue\n * arguments {string} URL fragments\n * @returns {string} _\n */\nfunction urlJoin() {\n    const paths = Array.prototype.slice.call(arguments)\n    const url = '/' + paths.map(function (e) {\n        return e.replace(/^\\/|\\/$/g, '')\n    })\n        .filter(function (e) {\n            return e\n        })\n        .join('/')\n    return url.replace('//', '/')\n} // ---- End of urlJoin ---- //\n\n/** Convert JSON to Syntax Highlighted HTML\n * @param {object} json A JSON/JavaScript Object\n * @returns {html} Object reformatted as highlighted HTML\n */\nfunction syntaxHighlight(json) {\n    if (json === undefined) {\n        json = '<span class=\"undefined\">undefined</span>'\n    } else {\n        try {\n            json = JSON.stringify(json, undefined, 4)\n            // json = json.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;') // eslint-disable-line newline-per-chained-call\n            json = json.replace(/(\"(\\\\u[a-zA-Z0-9]{4}|\\\\[^u]|[^\\\\\"])*\"(\\s*:)?|\\b(true|false|null)\\b|-?\\d+(?:\\.\\d*)?(?:[eE][+-]?\\d+)?)/g, function (match) { // eslint-disable-line prefer-named-capture-group\n                let cls = 'number'\n                if ((/^\"/).test(match)) {\n                    if ((/:$/).test(match)) {\n                        cls = 'key'\n                    } else {\n                        cls = 'string'\n                    }\n                } else if ((/true|false/).test(match)) {\n                    cls = 'boolean'\n                } else if ((/null/).test(match)) {\n                    cls = 'null'\n                }\n                return `<span class=\"${cls}\">${match}</span>`\n            })\n        } catch (e) {\n            json = `Syntax Highlight ERROR: ${e.message}`\n        }\n    }\n    return json\n}\n\n/** msg._ui handling functions */\nconst _ui = new Ui(window, log, syntaxHighlight)\n\n//#endregion --- Module-level utility functions --- //\n\n/** Define and export the Uib class - note that an instance of the class is also exported in the wrap-up\n * @typicalname uibuilder\n */\nexport const Uib = class Uib {\n\n    //#region --- Static variables ---\n    static _meta = {\n        version: version,\n        type: 'module',\n        displayName: 'uibuilder',\n    }\n    //#endregion ---- ---- ---- ----\n\n    //#region private class vars\n\n    // How many times has the loaded instance connected to Socket.IO (detect if not a new load?)\n    connectedNum = 0\n    // event listener callbacks by property name\n    // #events = {}\n    // Socket.IO channel names\n    _ioChannels = { control: 'uiBuilderControl', client: 'uiBuilderClient', server: 'uiBuilder' }\n    /** setInterval holder for pings @type {function|undefined} */\n    #pingInterval\n    // onChange event callbacks\n    #propChangeCallbacks = {}\n    // onTopic event callbacks\n    #msgRecvdByTopicCallbacks = {}\n    // Is Vue available?\n    isVue = false\n    // What version? Set in startup if Vue is loaded. Won't always work\n    vueVersion = undefined\n    /** setInterval id holder for Socket.IO checkConnect\n     * @type {number|null}\n     */\n    #timerid = null\n    // Holds the reference ID for the internal msg change event handler so that it can be cancelled\n    #MsgHandler\n    // Placeholder for io.socket - can't make a # var until # fns allowed in all browsers\n    _socket\n    // Placeholder for an observer that watches the whole DOM for changes - can't make a # var until # fns allowed in all browsers\n    _htmlObserver\n    // Has showMsg been turned on?\n    #isShowMsg = false\n    // Has showStatus been turned on?\n    #isShowStatus = false\n    // If true, URL hash changes send msg back to node-red. Controlled by watchUrlHash()\n    #sendUrlHash = false\n    // Externally accessible command functions (NB: Case must match) - remember to update _uibCommand for new commands\n    #extCommands = [\n        'elementExists', 'get', 'getManagedVarList', 'getWatchedVars', 'htmlSend', 'include',\n        'navigate', 'scrollTo', 'set', 'showMsg', 'showStatus', 'uiGet', 'uiWatch', 'watchUrlHash',\n    ]\n\n    /** @type {{[key: string]: string}} Managed uibuilder variables */\n    #managedVars = {}\n\n    // What status variables to show via showStatus()\n    #showStatus = {\n        online: { 'var': 'online', 'label': 'Online?', 'description': 'Is the browser online?', },\n        ioConnected: { 'var': 'ioConnected', 'label': 'Socket.IO connected?', 'description': 'Is Socket.IO connected?', },\n        connectedNum: { 'var': 'connectedNum', 'label': '# reconnections', 'description': 'How many times has Socket.IO had to reconnect since last page load?', },\n\n        clientId: { 'var': 'clientId', 'label': 'Client ID', 'description': 'Static client unique id set in Node-RED. Only changes when browser is restarted.', },\n        tabId: { 'var': 'tabId', 'label': 'Browser tab ID', 'description': 'Static unique id for the browser\\'s current tab', },\n        cookies: { 'var': 'cookies', 'label': 'Cookies', 'description': 'Cookies set in Node-RED', },\n        httpNodeRoot: { 'var': 'httpNodeRoot', 'label': 'httpNodeRoot', 'description': 'From Node-RED\\' settings.js, affects URL\\'s. May be wrong for pages in sub-folders', },\n        pageName: { 'var': 'pageName', 'label': 'Page name', 'description': 'Actual name of this page', },\n\n        ioNamespace: { 'var': 'ioNamespace', 'label': 'SIO namespace', 'description': 'Socket.IO namespace - unique to each uibuilder node instance', },\n        // ioPath: { 'var': 'ioPath', 'label': 'SIO path', 'description': '', }, // no longer needed in the modern client\n        socketError: { 'var': 'socketError', 'label': 'Socket error', 'description': 'If the Socket.IO connection has failed, says why', },\n\n        msgsSent: { 'var': 'msgsSent', 'label': '# msgs sent', 'description': 'How many standard messages have been sent to Node-RED?', },\n        msgsReceived: { 'var': 'msgsReceived', 'label': '# msgs received', 'description': 'How many standard messages have been received from Node-RED?', },\n        msgsSentCtrl: { 'var': 'msgsSentCtrl', 'label': '# control msgs sent', 'description': 'How many control messages have been sent to Node-RED?', },\n        msgsCtrlReceived: { 'var': 'msgsCtrlReceived', 'label': '# control msgs received', 'description': 'How many control messages have been received from Node-RED?', },\n        originator: { 'var': 'originator', 'label': 'Node Originator', 'description': 'If the last msg from Node-RED was from a `uib-sender` node, this will be its node id so that messasges can be returned to it', },\n        topic: { 'var': 'topic', 'label': 'Default topic', 'description': 'Optional default topic to be included in outgoing standard messages', },\n\n        started: { 'var': 'started', 'label': 'Has uibuilder client started?', 'description': 'Whether `uibuilder.start()` ran successfully. This should self-run and should not need to be run manually', },\n        version: { 'var': 'version', 'label': 'uibuilder client version', 'description': 'The version of the loaded uibuilder client library', },\n        serverTimeOffset: { 'var': 'serverTimeOffset', 'label': 'Server time offset (Hrs)', 'description': 'The number of hours difference between the Node-red server and the client', },\n    }\n\n    // Track ui observers (see uiWatch)\n    #uiObservers = {}\n\n    //#endregion\n\n    //#region public class vars\n\n    // TODO Move to proper getters\n    //#region ---- Externally read-only (via .get method) ---- //\n    // version - moved to _meta\n    /** Client ID set by uibuilder on connect */\n    clientId = ''\n    /** The collection of cookies provided by uibuilder */\n    cookies = {}\n    /** Copy of last control msg object received from sever */\n    ctrlMsg = {}\n    /** Is Socket.IO client connected to the server? */\n    ioConnected = false\n    // Is the browser tab containing this page visible or not?\n    isVisible = false\n    // Remember the last page (re)load/navigation type: navigate, reload, back_forward, prerender\n    lastNavType = ''\n    /** Last std msg received from Node-RED */\n    msg = {}\n    /** number of messages sent to server since page load */\n    msgsSent = 0\n    /** number of messages received from server since page load */\n    msgsReceived = 0\n    /** number of control messages sent to server since page load */\n    msgsSentCtrl = 0\n    /** number of control messages received from server since page load */\n    msgsCtrlReceived = 0\n    /** Is the client online or offline? */\n    online = navigator.onLine\n    /** last control msg object sent via uibuilder.send() @since v2.0.0-dev3 */\n    sentCtrlMsg = {}\n    /** last std msg object sent via uibuilder.send() */\n    sentMsg = {}\n    /** placeholder to track time offset from server, see fn socket.on(ioChannels.server ...) */\n    serverTimeOffset = null\n    /** placeholder for a socket error message */\n    socketError = null\n    // tab identifier from session storage\n    tabId = ''\n    // Actual name of current page (set in constructor)\n    pageName = null\n    // Is the DOMPurify library loaded? Updated in start()\n    purify = false\n    // Is the Markdown-IT library loaded? Updated in start()\n    markdown = false\n    // Current URL hash. Initial set is done from start->watchHashChanges via a set to make it watched\n    urlHash = location.hash\n    //#endregion ---- ---- ---- ---- //\n\n    // TODO Move to proper getters/setters\n    //#region ---- Externally Writable (via .set method, read via .get method) ---- //\n    /** Default originator node id - empty string by default\n     * @type {string}\n     */\n    originator = ''\n    /** Default topic - used by send if set and no topic provided\n     * @type {(string|undefined)}\n     */\n    topic = undefined\n    //#endregion ---- ---- ---- ---- //\n\n    //#region ---- These are unlikely to be needed externally: ----\n    autoSendReady = true\n    httpNodeRoot = '' // Node-RED setting (via cookie)\n    ioNamespace = ''\n    ioPath = ''\n    retryFactor = 1.5       // starting delay factor for subsequent reconnect attempts\n    retryMs = 2000          // starting retry ms period for manual socket reconnections workaround\n    storePrefix = 'uib_'    // Prefix for all uib-related localStorage\n    started = false\n    // NOTE: These can only change when a client (re)connects\n    socketOptions = {\n        path: this.ioPath,\n        transports: ['polling', 'websocket'],\n        // Using callback so that they are updated automatically on (re)connect\n        // Only put things in here that will be valid for a websocket connected session\n        auth: (cb) => {\n            cb({ // eslint-disable-line n/no-callback-literal\n                clientVersion: version,\n                clientId: this.clientId,\n                pathName: window.location.pathname,\n                urlParams: Object.fromEntries(new URLSearchParams(location.search)),\n                pageName: this.pageName,\n                tabId: this.tabId,\n                lastNavType: this.lastNavType,\n                connectedNum: ++this.connectedNum,\n                // Used to calculate the diff between the server and client connection timestamps - reported if >1 minute\n                browserConnectTimestamp: (new Date()).toISOString(),\n            })\n        },\n        transportOptions: {\n            // Can only set headers when polling\n            polling: {\n                extraHeaders: {\n                    'x-clientid': `${Uib._meta.displayName}; ${Uib._meta.type}; ${Uib._meta.version}; ${this.clientId}`,\n                }\n            },\n        },\n    }\n    //#endregion -- not external --\n\n    //#endregion --- End of variables ---\n\n    //#region ------- Getters and Setters ------- //\n\n    // Change logging level dynamically (affects both console. and print.)\n    set logLevel(level) { logLevel = level; console.log('%c\u2757 info%c [logLevel]', `${LOG_STYLES.level} ${LOG_STYLES.info.css}`, `${LOG_STYLES.head} ${LOG_STYLES.info.txtCss}`, `Set to ${level} (${LOG_STYLES.names[level]})`) /* changeLogLevel(level)*/ }\n    get logLevel() { return logLevel }\n\n    get meta() { return Uib._meta }\n\n    /** Function to set uibuilder properties to a new value - works on any property except _* or #*\n     * Also triggers any event listeners.\n     * Example: this.set('msg', {topic:'uibuilder', payload:42});\n     * @param {string} prop Any uibuilder property who's name does not start with a _ or #\n     * @param {*} val The set value of the property or a string declaring that a protected property cannot be changed\n     * @param {boolean} [store] If true, the variable is also saved to the browser localStorage if possible\n     * @param {boolean} [autoload] If true & store is true, on load, uib will try to restore the value from the store automatically\n     * @returns {*} Input value\n     */\n    set(prop, val, store = false, autoload = false) {\n        // Check for excluded properties - we don't want people to set these\n        // if (this.#excludedSet.indexOf(prop) !== -1) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:set', `Cannot use set() on protected property \"${prop}\"`)()\n            return `Cannot use set() on protected property \"${prop}\"`\n        }\n\n        // We must add the var to the uibuilder object\n        this[prop] = val\n\n        // Keep track of all managed variables\n        this.#managedVars[prop] = prop\n\n        // If requested, save to store\n        if (store === true) this.setStore(prop, val, autoload)\n\n        log('trace', 'Uib:set', `prop set - prop: ${prop}, val: `, val, ` store: ${store}, autoload: ${autoload}`)()\n\n        // Trigger this prop's event callbacks (listeners which are set by this.onChange)\n        // this.emit(prop, val)\n\n        // trigger an event on the prop name, pass both the name and value to the event details\n        this._dispatchCustomEvent('uibuilder:propertyChanged', { 'prop': prop, 'value': val, 'store': store, 'autoload': autoload })\n\n        return val\n    }\n\n    /** Function to get the value of a uibuilder property\n     * Example: uibuilder.get('msg')\n     * @param {string} prop The name of the property to get as long as it does not start with a _ or #\n     * @returns {*|undefined} The current value of the property\n     */\n    get(prop) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:get', `Cannot use get() on protected property \"${prop}\"`)()\n            return\n        }\n        if (prop === 'version') return Uib._meta.version\n        if (prop === 'msgsCtrl') return this.msgsCtrlReceived\n        if (prop === 'reconnections') return this.connectedNum\n        if (this[prop] === undefined) {\n            log('warn', 'Uib:get', `get() - property \"${prop}\" is undefined`)()\n        }\n        return this[prop]\n    }\n\n    /** Write to localStorage if possible. console error output if can't write\n     * Also uses this.storePrefix\n     * @example\n     *   uibuilder.setStore('fred', 42)\n     *   console.log(uibuilder.getStore('fred'))\n     * @param {string} id localStorage var name to be used (prefixed with 'uib_')\n     * @param {*} value value to write to localstore\n     * @param {boolean} [autoload] If true, on load, uib will try to restore the value from the store\n     * @returns {boolean} True if succeeded else false\n     */\n    setStore(id, value, autoload = false) {\n        let autoVars = {}\n        if (autoload === true) {\n            try {\n                autoVars = this.getStore('_uibAutoloadVars') || {}\n            } catch (e) {}\n        }\n        if (typeof value === 'object') {\n            try {\n                value = JSON.stringify(value)\n            } catch (e) {\n                log('error', 'Uib:setStore', 'Cannot stringify object, not storing. ', e)()\n                return false\n            }\n        }\n        try {\n            localStorage.setItem(this.storePrefix + id, value)\n            if (autoload) {\n                autoVars[id] = id\n                try {\n                    localStorage.setItem(this.storePrefix + '_uibAutoloadVars', JSON.stringify(autoVars))\n                } catch (e) {\n                    log('error', 'Uib:setStore', 'Cannot save autoload list. ', e)()\n                }\n            }\n            this._dispatchCustomEvent('uibuilder:propertyStored', { 'prop': id, 'value': value, 'autoload': autoload })\n            return true\n        } catch (e) {\n            log('error', 'Uib:setStore', 'Cannot write to localStorage. ', e)()\n            return false\n        }\n    } // --- end of setStore --- //\n\n    /** Attempt to get and re-hydrate a key value from localStorage\n     * Note that all uib storage is automatically prefixed using this.storePrefix\n     * @param {*} id The key of the value to attempt to retrieve\n     * @returns {*|null|undefined} The re-hydrated value of the key or null if key not found, undefined on error\n     */\n    getStore(id) {\n        try {\n            // @ts-ignore\n            return JSON.parse(localStorage.getItem(this.storePrefix + id))\n        } catch (e) { }\n        try {\n            return localStorage.getItem(this.storePrefix + id)\n        } catch (e) {\n            return undefined\n        }\n    }\n\n    /** Remove a given id from the uib keys in localStorage\n     * @param {*} id The key to remove\n     */\n    removeStore(id) {\n        try {\n            localStorage.removeItem(this.storePrefix + id)\n        } catch (e) { }\n    }\n\n    /** Returns a list of uibuilder properties (variables) that can be watched with onChange\n     * @returns {{[key: string]: string}} List of uibuilder managed variables\n     */\n    getManagedVarList() {\n        return this.#managedVars\n    }\n\n    getWatchedVars() {\n        return Object.keys(this.#propChangeCallbacks)\n    }\n\n    //#endregion ------- -------- ------- //\n\n    //#region ------- Our own event handling system ---------- //\n\n    // TODO Add option to send event details back to Node-RED as uib ctrl msg\n    /** Standard fn to create a custom event with details & dispatch it\n     * @param {string} title The event name\n     * @param {*} details Any details to pass to event output\n     */\n    _dispatchCustomEvent(title, details) {\n        const event = new CustomEvent(title, { detail: details })\n        document.dispatchEvent(event)\n    }\n\n    // See the this.#propChangeCallbacks & msgRecvdByTopicCallbacks private vars\n\n    /** Register on-change event listeners for uibuilder tracked properties\n     * Make it possible to register a function that will be run when the property changes.\n     * Note that you can create listeners for non-existant properties\n     * @example: uibuilder.onChange('msg', (msg) => { console.log('uibuilder.msg changed! It is now: ', msg) })\n     *\n     * @param {string} prop The property of uibuilder that we want to monitor\n     * @param {Function} callback The function that will run when the property changes, parameter is the new value of the property after change\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelChange if you need to remove a listener\n     */\n    onChange(prop, callback) {\n        // Note: Property does not have to exist yet\n\n        // console.debug(`[Uib:onchange] pushing new callback (event listener) for property: ${prop}`)\n\n        // Create a new array or add to the array of callback functions for the property in the events object\n        // if (this.#events[prop]) {\n        //     this.#events[prop].push(callback)\n        // } else {\n        //     this.#events[prop] = [callback]\n        // }\n\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#propChangeCallbacks[prop]) this.#propChangeCallbacks[prop] = { _nextRef: 1 }\n        else this.#propChangeCallbacks[prop]._nextRef++\n\n        const nextCbRef = this.#propChangeCallbacks[prop]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const propChangeCallback = this.#propChangeCallbacks[prop][nextCbRef] = function propChangeCallback(e) {\n            // If the prop name matches the 1st arg in the onChange fn:\n            if (prop === e.detail.prop) {\n                const value = e.detail.value\n                // console.warn('[Uib:onChange:evt] uibuilder:propertyChanged. ', e.detail)\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(value, value)\n            }\n        }\n\n        document.addEventListener('uibuilder:propertyChanged', propChangeCallback)\n\n        return nextCbRef\n    } // ---- End of onChange() ---- //\n\n    cancelChange(prop, cbRef) {\n        document.removeEventListener('uibuilder:propertyChanged', this.#propChangeCallbacks[prop][cbRef])\n        delete this.#propChangeCallbacks[prop][cbRef]\n        // this.#propChangeCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Register a change callback for a specific msg.topic\n     * Similar to onChange but more convenient if needing to differentiate by msg.topic.\n     * @example: let otRef = uibuilder.onTopic('mytopic', function(){ console.log('Received a msg with msg.topic=`mytopic`. msg: ', this) })\n     * To cancel a change listener: uibuilder.cancelTopic('mytopic', otRef)\n     *\n     * @param {string} topic The msg.topic we want to listen for\n     * @param {Function} callback The function that will run when an appropriate msg is received. `this` inside the callback as well as the cb's single argument is the received msg.\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelTopic if you need to remove a listener\n     */\n    onTopic(topic, callback) {\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#msgRecvdByTopicCallbacks[topic]) this.#msgRecvdByTopicCallbacks[topic] = { _nextRef: 1 }\n        else this.#msgRecvdByTopicCallbacks[topic]._nextRef++\n\n        const nextCbRef = this.#msgRecvdByTopicCallbacks[topic]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const msgRecvdEvtCallback = this.#msgRecvdByTopicCallbacks[topic][nextCbRef] = function msgRecvdEvtCallback(e) {\n            const msg = e.detail\n            // console.log('[Uib:onTopic:evt] uibuilder:stdMsgReceived where topic matches. ', e.detail)\n            if (msg.topic === topic) {\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(msg, msg)\n            }\n        }\n\n        document.addEventListener('uibuilder:stdMsgReceived', msgRecvdEvtCallback)\n\n        return nextCbRef\n    }\n\n    cancelTopic(topic, cbRef) {\n        document.removeEventListener('uibuilder:stdMsgReceived', this.#msgRecvdByTopicCallbacks[topic][cbRef])\n        delete this.#msgRecvdByTopicCallbacks[topic][cbRef]\n        // this.#msgRecvdCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Trigger event listener for a given property\n     * Called when uibuilder.set is used\n     *\n     * @param {*} prop The property for which to run the callback functions\n     * arguments: Additional arguments contain the value to pass to the event callback (e.g. newValue)\n     */\n    // emit(prop) {\n    //     var evt = this.#events[prop]\n    //     if (!evt) {\n    //         return\n    //     }\n    //     var args = Array.prototype.slice.call(arguments, 1)\n    //     for (var i = 0; i < evt.length; i++) {\n    //         evt[i].apply(this, args)\n    //     }\n    //     log('trace', 'Uib:emit', `${evt.length} listeners run for prop ${prop} `)()\n    // }\n\n    /** Forcibly removes all event listeners from the events array\n     * Use if you need to re-initialise the environment\n     */\n    // clearEventListeners() {\n    //     this.#events = []\n    // } // ---- End of clearEventListeners() ---- //\n\n    /** Clear a single property event listeners\n     * @param {string} prop The property of uibuilder for which we want to clear the event listener\n     */\n    // clearListener(prop) {\n    //     if (this.#events[prop]) delete this.#events[prop]\n    // }\n\n    //#endregion ---------- End of event handling system ---------- //\n\n    //#region ------- General Utility Functions -------- //\n\n    /** Check supplied msg from server for a timestamp - if received, work out & store difference to browser time\n     * @param {object} receivedMsg A message object recieved from Node-RED\n     * @returns {void} Updates self.serverTimeOffset if different to previous value\n     */\n    _checkTimestamp(receivedMsg) {\n        if (Object.prototype.hasOwnProperty.call(receivedMsg, 'serverTimestamp')) {\n            const serverTimestamp = new Date(receivedMsg.serverTimestamp)\n            // @ts-ignore\n            const offset = Math.round(((new Date()) - serverTimestamp) / 3600000) // in ms /3.6m to get hours\n            if (offset !== this.serverTimeOffset) {\n                log('trace', `Uib:checkTimestamp:${this._ioChannels.server} (server)`, `Offset changed to: ${offset} from: ${this.serverTimeOffset}`)()\n                this.set('serverTimeOffset', offset)\n            }\n        }\n    }\n\n    /** Set the default originator. Set to '' to ignore. Used with uib-sender.\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    setOriginator(originator = '') {\n        this.set('originator', originator)\n    } // ---- End of setOriginator ---- //\n\n    /** HTTP Ping/Keep-alive - makes a call back to uibuilder's ExpressJS server and receives a 204 response\n     * Can be used to keep sessions alive.\n     * @example\n     *   uibuilder.setPing(2000) // repeat every 2 sec. Re-issue with ping(0) to turn off repeat.\n     *   uibuilder.onChange('ping', function(data) {\n     *      console.log('pinger', data)\n     *   })\n     * @param {number} ms Repeat interval in ms\n     */\n    setPing(ms = 0) {\n        const oReq = new XMLHttpRequest()\n        oReq.addEventListener('load', () => {\n            const headers = (oReq.getAllResponseHeaders()).split('\\r\\n')\n            const elapsedTime = Number(new Date()) - Number((oReq.responseURL.split('='))[1])\n            this.set('ping', {\n                success: !!((oReq.status === 201) || (oReq.status === 204)), // true if one of the listed codes else false\n                status: oReq.status,\n                headers: headers,\n                url: oReq.responseURL,\n                elapsedTime: elapsedTime,\n            })\n        })\n\n        if (this.#pingInterval) {\n            clearInterval(this.#pingInterval)\n            this.#pingInterval = undefined\n        }\n\n        oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n        oReq.send()\n\n        if (ms > 0) {\n            this.#pingInterval = setInterval(() => {\n                oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n                oReq.send()\n            }, ms)\n        }\n    } // ---- End of ping ---- //\n\n    log() {\n        log(...arguments)()\n    }\n\n    /** Convert JSON to Syntax Highlighted HTML\n     * @param {object} json A JSON/JavaScript Object\n     * @returns {html} Object reformatted as highlighted HTML\n     */\n    syntaxHighlight(json) {\n        return syntaxHighlight(json)\n    } // --- End of syntaxHighlight --- //\n\n    /** Copies a uibuilder variable to the browser clipboard\n     * @param {string} varToCopy The name of the uibuilder variable to copy to the clipboard\n     */\n    copyToClipboard(varToCopy) {\n        let data = ''\n        try {\n            data = JSON.stringify(this.get(varToCopy))\n        } catch (e) {\n            log('error', 'copyToClipboard', `Could not copy \"${varToCopy}\" to clipboard.`, e.message)()\n        }\n        navigator.clipboard.writeText(data)\n    } // --- End of copyToClipboard --- //\n\n    /** DEPRECATED FOR NOW - wasn't working properly.\n     * Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.\n     * Requires IntersectionObserver (available to all mainstream browsers from early 2019)\n     * Automatically sends a msg back to Node-RED.\n     * Requires the element to already exist.\n     * @returns {false} False if not visible\n     */\n    elementIsVisible() {\n        const info = 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'\n        log('error', 'uib:elementIsVisible', info)()\n        this.send({ payload: 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex' })\n        return false\n    } // --- End of elementIsVisible --- //\n\n    /** Does the chosen CSS Selector currently exist?\n     * Automatically sends a msg back to Node-RED unless turned off.\n     * @param {string} cssSelector Required. CSS Selector to examine for visibility\n     * @param {boolean} [msg] Optional, default=true. If true also sends a message back to Node-RED\n     * @returns {boolean} True if the element exists\n     */\n    elementExists(cssSelector, msg = true) {\n        const el = document.querySelector(cssSelector)\n\n        let exists = false\n        if (el !== null) exists = true\n\n        if (msg === true) {\n            this.send({\n                payload: exists,\n                info: `Element \"${cssSelector}\" ${exists ? 'exists' : 'does not exist'}`\n            })\n        }\n\n        return exists\n    } // --- End of elementExists --- //\n\n    /** Only keep the URL Hash & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return '#' + url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Set up an event listener to watch for hash changes\n     * and set the watchable urlHash variable\n     */\n    _watchHashChanges() {\n        this.set('urlHash', location.hash)\n        window.addEventListener('hashchange', (event) => {\n            this.set('urlHash', location.hash)\n            if (this.#sendUrlHash === true) {\n                this.send({ topic: 'hashChange', payload: location.hash, newHash: this.keepHashFromUrl(event.newURL), oldHash: this.keepHashFromUrl(event.oldURL) })\n            }\n        })\n    }\n\n    /** Returns true/false or a default value for truthy/falsy and other values\n     * @param {string|number|boolean|*} val The value to test\n     * @param {any} deflt Default value to use if the value is not truthy/falsy\n     * @returns {boolean|any} The truth! Or the default\n     */\n    truthy(val, deflt) {\n        let ret\n        if (['on', 'On', 'ON', 'true', 'True', 'TRUE', '1', true, 1].includes(val)) ret = true\n        else if (['off', 'Off', 'OFF', 'false', 'False', 'FALSE', '0', false, 0].includes(val)) ret = false\n        else ret = deflt\n        return ret\n    }\n\n    /** Turn on/off/toggle sending URL hash changes back to Node-RED\n     * @param {string|number|boolean|undefined} [toggle] Optional on/off/etc\n     * @returns {boolean} True if we will send a msg to Node-RED on a hash change\n     */\n    watchUrlHash(toggle) {\n        this.#sendUrlHash = this.truthy(toggle, this.#sendUrlHash !== true)\n        return this.#sendUrlHash\n    }\n\n    /** Navigate to a new page or a new route (hash)\n     * @param {string} url URL to navigate to. Can be absolute or relative (to current page) or just a hash for a route change\n     * @returns {Location} The new window.location string\n     */\n    navigate(url) {\n        if (url) window.location.href = url\n        return window.location\n    }\n\n    /** Format a number using the INTL standard library - compatible with uib-var filter function\n     * @param {number} value Number to format\n     * @param {number} decimalPlaces Number of decimal places to include. Default=no default\n     * @param {string} intl standard locale spec, e.g. \"ja-JP\" or \"en-GB\". Default=navigator.language\n     * @param {object} opts INTL library options object. Optional\n     * @returns {string} formatted number\n     * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/toLocaleString\n     */\n    formatNumber(value, decimalPlaces, intl, opts) {\n        if (isNaN(value)) {\n            log('error', 'formatNumber', `Value must be a number. Value type: \"${typeof value}\"`)()\n            return 'NaN'\n        }\n        if (!opts) opts = {}\n        if (!intl) intl = navigator.language ? navigator.language : 'en-GB'\n        if (decimalPlaces) {\n            opts.minimumFractionDigits = decimalPlaces\n            opts.maximumFractionDigits = decimalPlaces\n        }\n        let out\n        try {\n            out = Number(value).toLocaleString(intl, opts)\n        } catch (e) {\n            log('error', 'formatNumber', `${e.message}. value=${value}, dp=${decimalPlaces}, intl=\"${intl}\", opts=${JSON.stringify(opts)}`)()\n            return 'NaN'\n        }\n        return out\n    }\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- UI handlers --------- //\n\n    //#region -- Direct to _ui --\n    // ! NOTE: Direct assignments change the target `this` to here. Use with caution\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {HTMLElement|null} Selected HTML element or null\n     */\n    $ = _ui.$\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {string} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {HTMLElement[]} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$ = _ui.$$\n\n    /** Reference to the full ui library */\n    $ui = _ui\n\n    /** Add 1 or several class names to an element\n     * @param {string|string[]} classNames Single or array of classnames\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    addClass = _ui.addClass\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        return _ui.convertMarkdown\n    }\n\n    /** ASYNC: Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     */\n    async include(url, uiOptions) {\n        await _ui.include(url, uiOptions)\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        _ui.loadScriptSrc(url)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        _ui.loadStyleSrc(url)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        _ui.loadScriptTxt(textFn)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        _ui.loadStyleTxt(textFn)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        _ui.loadui(url)\n    }\n\n    /** Remove All, 1 or more class names from an element\n     * @param {undefined|null|\"\"|string|string[]} classNames Single or array of classnames. If undefined, \"\" or null, remove all classes\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    removeClass = _ui.removeClass\n\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        _ui.replaceSlot(el, component)\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        _ui.replaceSlotMarkdown(el, component)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        return _ui.sanitiseHTML(html)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) {\n        _ui.showDialog(type, ui, msg)\n    }\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        _ui.ui(json)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        return _ui.uiGet(cssSelector, propName)\n    }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} component Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, component) {\n        _ui.uiEnhanceElement(el, component)\n    }\n\n    //#endregion -- direct to _ui --\n\n    /** * Show/hide a display card on the end of the visible HTML that will dynamically display the last incoming msg from Node-RED\n     * The card has the id `uib_last_msg`. Updates are done from a listener set up in the start function.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showMsg(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowMsg\n        this.#isShowMsg = showHide\n        let slot = 'Waiting for a message from Node-RED'\n\n        if (this.msg && Object.keys(this.msg).length > 0) {\n            slot = this.syntaxHighlight(this.msg)\n        }\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_last_msg_wrap',\n                ],\n            })\n        } else {\n            _ui._uiReplace({\n                components: [\n                    {\n                        type: 'div',\n                        id: 'uib_last_msg_wrap',\n                        parent: parent,\n                        attributes: {\n                            title: 'Last message from Node-RED',\n                        },\n                        components: [\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.copyToClipboard(\"msg\")',\n                                    class: 'compact',\n                                    style: 'right:3em;',\n                                },\n                                slot: '\uD83D\uDCCB',\n                            },\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.showMsg()',\n                                    class: 'compact',\n                                    style: 'right:.5em;',\n                                },\n                                slot: '\u26D4',\n                            },\n                            {\n                                type: 'pre',\n                                id: 'uib_last_msg',\n                                // parent: 'uib_last_msg_wrap',\n                                attributes: {\n                                    class: 'syntax-highlight',\n                                },\n                                slot: slot,\n                            },\n                        ],\n                    },\n                ],\n            })\n        }\n\n        return showHide\n    }\n\n    /** Show a browser notification if possible.\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * @example uibuilder.notify( 'My simple message to the user' )\n     * @example uibuilder.notify( {topic: 'My Title', payload: 'My simple message to the user'} )\n     * @example uibuilder.notify( {title: 'My Title', body: 'My simple message to the user'} )\n     * @example // If config.return = true, a promise is returned.\n     * // The resolved promise is only returned if the notification is clicked by the user.\n     * // Can be used to send the response back to Node-RED\n     * uibuilder.notify(notifyConfig).then( res => uibuilder.eventSend(res) )\n     * @ref https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config data or simple message string\n     * @returns {Promise<Event>|null} A promise that resolves to the click event or null\n     */\n    notify(config) {\n        if (config.return) return _ui.notification(config)\n\n        _ui.notification(config)\n            .then( res => { // eslint-disable-line promise/always-return\n                log('info', 'Uib:notification', 'Notification completed event', res)()\n                // if (config.return) return res\n            })\n            .catch( err => {\n                log('error', 'Uib:notification', 'Notification error event', err)()\n            })\n        return null\n    }\n\n    /** Scroll the page\n     * https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollIntoView\n     * @param {string} [cssSelector] Optional. If not set, scrolls to top of page.\n     * @param {{block:(string|undefined),inline:(string|undefined),behavior:(string|undefined)}} [opts] Optional. DOM scrollIntoView options\n     * @returns {boolean} True if element was found, false otherwise\n     */\n    scrollTo(cssSelector, opts) {\n        // @ts-ignore\n        if (!opts) opts = {}\n        if (!cssSelector || cssSelector === 'top'  || cssSelector === 'start') cssSelector = 'body'\n        else if (cssSelector === 'bottom' || cssSelector === 'end') {\n            cssSelector = 'body'\n            opts.block = 'end'\n        }\n        const el = this.$(cssSelector)\n        if (el) {\n            el.scrollIntoView(opts)\n            return true\n        }\n        return false\n    }\n\n    /** Show/hide a display card on the end of the visible HTML that will dynamically display the current status of the uibuilder client\n     * The card has the id `uib_status`.\n     * The display is updated by an event listener created in the class constructor.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showStatus(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowStatus\n        this.#isShowStatus = showHide\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_status',\n                ],\n            })\n            return showHide\n        }\n\n        const root = {\n            components: [\n                {\n                    type: 'div',\n                    id: 'uib_status',\n                    parent: parent,\n                    attributes: {\n                        title: 'Current status of the uibuilder client',\n                        class: 'text-smaller',\n                    },\n                    components: [\n                        {\n                            'type': 'table',\n                            'components': [\n                                {\n                                    'type': 'tbody',\n                                    'components': []\n                                }\n                            ]\n                        }\n                    ]\n                }\n            ]\n        }\n        const details = root.components[0].components[0].components[0].components\n\n        Object.values(this.#showStatus).forEach( entry => {\n            details.push({\n                'type': 'tr',\n                'attributes': {\n                    title: entry.description,\n                },\n                'components': [\n                    {\n                        'type': 'th',\n                        'slot': entry.label,\n                    },\n                    {\n                        'type': 'td',\n                        'attributes': {\n                            'data-varType': entry.var,\n                        },\n                        'slot': entry.var === 'version' ? Uib._meta.version : JSON.stringify(this[entry.var]),\n                    }\n                ],\n            })\n        })\n\n        _ui._uiReplace(root)\n\n        return showHide\n    }\n\n    /** Use the Mutation Observer browser API to watch for changes to a single element on the page.\n     * OMG! It is sooo hard to turn the data into something that successfully serialises so it can be sent back to Node-RED!\n     * NB: Each cssSelector creates a unique watcher. Sending the same selector overwrites the previous one.\n     * @param {string} cssSelector A CSS Selector that selects the element to watch for changes\n     * @param {boolean|\"toggle\"} [startStop] true=start watching the DOM, false=stop. Default='toggle'\n     * @param {boolean} [send] true=Send changes to Node-RED, false=Don't send. Default=true\n     * @param {boolean} [showLog] true=Output changes to log, false=stop. Default=true. Log level is 2 (Info)\n     * @returns {boolean} True if the watch is on, false otherwise\n     */\n    uiWatch(cssSelector, startStop = 'toggle', send = true, showLog = true) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.querySelector(cssSelector)\n        if (!targetNode) {\n            log('warn', 'uibuilder.module.js:uiWatch', `CSS Selector '${cssSelector}' not found.`)()\n            return false\n        }\n\n        if (startStop === 'toggle' || startStop === undefined || startStop === null) {\n            if (this.#uiObservers[cssSelector]) startStop = false\n            else startStop = true\n        }\n\n        // Need a ref to the Uib this\n        const that = this\n\n        if (startStop === true) {\n            // Create an observer instance\n            this.#uiObservers[cssSelector] = new MutationObserver( function( mutationList /* , observer */ ) {\n                const out = []\n\n                mutationList.forEach( mu => {\n                    // console.log({ mu })\n                    const oMu = {\n                        type: mu.type,\n                        oldValue: mu.oldValue !== null ? mu.oldValue : undefined,\n                    }\n\n                    if (mu.addedNodes.length > 0) {\n                        oMu.addedNodes = []\n                        mu.addedNodes.forEach( (an, i) => {\n                            oMu.addedNodes.push(_ui.nodeGet(mu.addedNodes[i]))\n                        })\n                    }\n\n                    if (mu.removedNodes.length > 0) {\n                        oMu.removedNodes = []\n                        mu.removedNodes.forEach( (an, i) => {\n                            oMu.removedNodes.push(_ui.nodeGet(mu.removedNodes[i]))\n                        })\n                    }\n\n                    if ( mu.type === 'attributes' ) {\n                        oMu.attributeName = mu.attributeName\n                        // @ts-ignore\n                        oMu.newValue = mu.target.attributes[mu.attributeName].value\n                    }\n\n                    out.push(oMu)\n                })\n\n                // Custom event\n                that._dispatchCustomEvent('uibuilder:domChange', out)\n                // Send a msg back to node-red\n                if (send === true) {\n                    that.send({\n                        _ui: {\n                            cssSelector: cssSelector,\n                            uiChanges: out\n                        },\n                        topic: that.topic || `DOM Changes for '${cssSelector}'`,\n                    })\n                }\n                // Log to info\n                if (showLog === true) {\n                    log('info', 'uibuilder.module.js:uiWatch', `DOM Changes for '${cssSelector}'`, { uiChanges: out }, { mutationList })()\n                }\n            } )\n\n            // Start observing the target node for configured mutations\n            this.#uiObservers[cssSelector].observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:uiWatch', `Started Watching DOM changes for '${cssSelector}'`)()\n        } else {\n            this.#uiObservers[cssSelector].disconnect()\n            delete this.#uiObservers[cssSelector]\n            log('trace', 'uibuilder.module.js:uiWatch', `Stopped Watching DOM changes for '${cssSelector}'`)()\n        }\n\n        return startStop\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- HTML cache and DOM watch --------- //\n\n    /** Clear the saved DOM from localStorage */\n    clearHtmlCache() {\n        this.removeStore('htmlCache')\n        log('trace', 'uibuilder.module.js:clearHtmlCache', 'HTML cache cleared')()\n    }\n\n    /** Restore the complete DOM (the whole web page) from browser localStorage if available */\n    restoreHtmlFromCache() {\n        // Is the html cached? If so, restore it\n        const htmlCache = this.getStore('htmlCache')\n        if (htmlCache) {\n            const targetNode = document.getElementsByTagName('html')[0]\n            // Restore the entire HTML\n            targetNode.innerHTML = htmlCache\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'Restored HTML from cache')()\n        } else {\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'No cache to restore')()\n        }\n    }\n\n    /** Save the current DOM state to browser localStorage.\n     * localStorage is persistent and so can be recovered even after a browser restart.\n     */\n    saveHtmlCache() {\n        // Save the updated entire HTML in localStorage\n        this.setStore('htmlCache', document.documentElement.innerHTML)\n    }\n\n    /** Use the Mutation Observer browser API to watch for and save changes to the HTML\n     * Once the observer is created, it will be reused.\n     * Sending true or undefined will turn on the observer, false turns it off.\n     * saveHtmlCache is called whenever anything changes in the dom. This allows\n     * users to call restoreHtmlFromCache() on page load if desired to completely reload\n     * to the last saved state.\n     * @param {boolean} startStop true=start watching the DOM, false=stop\n     */\n    watchDom(startStop) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.documentElement\n\n        // Need a ref to the Uib this\n        const that = this\n\n        // Create an observer instance\n        if (!this._htmlObserver) {\n            this._htmlObserver = new MutationObserver( function(/* mutationList, observer */) {\n                // We don't need to know the details - so kill off any outstanding mutation records\n                this.takeRecords()\n                // Save the updated entire HTML in localStorage\n                that.saveHtmlCache()\n            } )\n        }\n\n        if (startStop === true || startStop === undefined) {\n            // Start observing the target node for configured mutations\n            this._htmlObserver.observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:watchDom', 'Started Watching and saving DOM changes')()\n        } else {\n            this._htmlObserver.disconnect()\n            log('trace', 'uibuilder.module.js:watchDom', 'Stopped Watching and saving DOM changes')()\n        }\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- Message Handling (To/From Node-RED) -------- //\n\n    /** Handles original control msgs (not to be confused with \"new\" msg._uib controls)\n     * @param {*} receivedCtrlMsg The msg received on the socket.io control channel\n     */\n    _ctrlMsgFromServer(receivedCtrlMsg) {\n\n        // Make sure that msg is an object & not null\n        if (receivedCtrlMsg === null) {\n            receivedCtrlMsg = {}\n        } else if (typeof receivedCtrlMsg !== 'object') {\n            const msg = {}\n            msg['uibuilderCtrl:' + this._ioChannels.control] = receivedCtrlMsg\n            receivedCtrlMsg = msg\n        }\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedCtrlMsg)\n\n        this.set('ctrlMsg', receivedCtrlMsg)\n        this.set('msgsCtrlReceived', ++this.msgsCtrlReceived)\n\n        log('trace', 'Uib:ioSetup:_ctrlMsgFromServer', `Channel '${this._ioChannels.control}'. Received control msg #${this.msgsCtrlReceived}`, receivedCtrlMsg)()\n\n        /** Process control msg types */\n        switch (receivedCtrlMsg.uibuilderCtrl) {\n            // Node-RED is shutting down\n            case 'shutdown': {\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, '\u274C Received \"shutdown\" from server')()\n                this.set('serverShutdown', undefined)\n                break\n            }\n\n            /** We are connected to the server - 1st msg from server */\n            case 'client connect': {\n                log('trace', `Uib:ioSetup:${this._ioChannels.control}`, 'Received \"client connect\" from server')()\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, `\u2705 Server connected. Version: ${receivedCtrlMsg.version}\\nServer time: ${receivedCtrlMsg.serverTimestamp}, Sever time offset: ${this.serverTimeOffset} hours`)()\n\n                if ( !Uib._meta.version.startsWith(receivedCtrlMsg.version.split('-')[0]) ) {\n                    log('warn', `Uib:ioSetup:${this._ioChannels.control}`, `Server version (${receivedCtrlMsg.version}) not the same as the client version (${Uib._meta.version})`)()\n                }\n\n                if (this.autoSendReady === true) { // eslint-disable-line no-lonely-if\n                    log('trace', `Uib:ioSetup:${this._ioChannels.control}/client connect`, 'Auto-sending ready-for-content/replay msg to server')\n                    // @since 0.4.8c Add cacheControl property for use with node-red-contrib-infocache\n                    // @since 6.1.0 Don't bother, we use the \"client connect\" msg\n                    // this._send({\n                    //     'uibuilderCtrl': 'ready for content',\n                    //     'cacheControl': 'REPLAY',\n                    // }, this._ioChannels.control)\n                }\n\n                break\n            }\n\n            default: {\n                log('trace', `uibuilderfe:ioSetup:${this._ioChannels.control}`, `Received ${receivedCtrlMsg.uibuilderCtrl} from server`)\n                // Anything else to do for other control msgs?\n            }\n        } // ---- End of process control msg types ---- //\n    } // -- End of websocket receive CONTROL msg from Node-RED -- //\n\n    /** Do we want to process something? Check pageName, clientId, tabId. Defaults to yes.\n     * @param {*} obj Either a msg._ui or msg._uib object to check\n     * @returns {boolean} True if we should process the inbound _ui/_uib msg, false if not.\n     */\n    _forThis(obj) {\n        let r = true\n\n        // Is this msg for this pageName?\n        if (obj.pageName && obj.pageName !== this.pageName) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this page')()\n            r = false\n        }\n\n        // Is this msg for this clientId?\n        if (obj.clientId && obj.clientId !== this.clientId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this clientId')()\n            r = false\n        }\n\n        // Is this msg for this tabId?\n        if (obj.tabId && obj.tabId !== this.tabId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this tabId')()\n            r = false\n        }\n\n        return r\n    }\n\n    // Handle received messages - Process some msgs internally, emit specific events on document that make it easy for coders to use\n    _msgRcvdEvents(msg) {\n        // Message received\n        this._dispatchCustomEvent('uibuilder:stdMsgReceived', msg)\n\n        // Topic\n        if ( msg.topic ) this._dispatchCustomEvent(`uibuilder:msg:topic:${msg.topic}`, msg)\n\n        // Handle msg._uib special requests\n        if (msg._uib) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._uib)) return\n\n            /** Process a client reload request from Node-RED - as the page is reloaded, everything else is ignored\n             * Note that msg._ui.reload is also actioned via the _ui processing below */\n            if (msg._uib.reload === true) {\n                log('trace', 'Uib:_msgRcvdEvents:_uib:reload', 'reloading')()\n                location.reload()\n                return\n            }\n\n            // Process msg._uib.command messages - allows Node-RED to run uibuilder FE functions\n            if (msg._uib.command) {\n                this._uibCommand(msg)\n                return\n            }\n\n            // Better to request via msg._ui - these are for backwards compatibility\n            if ( msg._uib.componentRef === 'globalNotification' ) {\n                _ui.showDialog('notify', msg._uib.options, msg)\n            }\n            if ( msg._uib.componentRef === 'globalAlert' ) {\n                _ui.showDialog('alert', msg._uib.options, msg)\n            }\n        }\n\n        // Handle msg._ui requests\n        if ( msg._ui ) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._ui)) return\n\n            log('trace', 'Uib:_msgRcvdEvents:_ui', 'Calling _uiManager')()\n            this._dispatchCustomEvent('uibuilder:msg:_ui', msg)\n            _ui._uiManager(msg)\n        }\n    } // --- end of _msgRcvdEvents ---\n\n    /** Internal send fn. Send a standard or control msg back to Node-RED via Socket.IO\n     * NR will generally expect the msg to contain a payload topic\n     * @param {object} msgToSend The msg object to send.\n     * @param {string} [channel=uiBuilderClient] The Socket.IO channel to use, must be in self.ioChannels or it will be ignored\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    _send(msgToSend, channel, originator = '') {\n        if (channel === null || channel === undefined) channel = this._ioChannels.client\n\n        // Make sure msgToSend is an object\n        if (channel === this._ioChannels.client) {\n            msgToSend = makeMeAnObject(msgToSend, 'payload')\n        } else if (channel === this._ioChannels.control) {\n            msgToSend = makeMeAnObject(msgToSend, 'uibuilderCtrl')\n            if (!Object.prototype.hasOwnProperty.call(msgToSend, 'uibuilderCtrl')) {\n                msgToSend.uibuilderCtrl = 'manual send'\n            }\n            // help remember where this came from as ctrl msgs can come from server or client\n            msgToSend.from = 'client'\n        }\n\n        /** since 2020-01-02 Added _socketId which should be the same as the _socketId on the server */\n        msgToSend._socketId = this._socket.id\n\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n\n        // Add the originator metadata if required\n        if (originator === '' && this.originator !== '') originator = this.originator\n        if (originator !== '') Object.assign(msgToSend, { '_uib': { 'originator': originator } })\n\n        // If the msg does not have a topic - see if we want to add one\n        if ( !Object.prototype.hasOwnProperty.call(msgToSend, 'topic') ) {\n            // From the default (`uibuilder.set('topic', 'some topic')`)\n            if (this.topic !== undefined && this.topic !== '') msgToSend.topic = this.topic\n            else {\n                // Did the last inbound msg have a topic?\n                if ( Object.prototype.hasOwnProperty.call(this, 'msg') && Object.prototype.hasOwnProperty.call(this.msg, 'topic') ) {\n                    msgToSend.topic = this.msg.topic\n                }\n            }\n        }\n\n        // If a standard send & _ui property exists, make sure to add _ui.from = 'client'\n        if (msgToSend._ui) msgToSend._ui.from = 'client'\n\n        // Track how many messages have been sent & last msg sent\n        let numMsgs\n        if (channel === this._ioChannels.client) {\n            this.set('sentMsg', msgToSend)\n            numMsgs = this.set('msgsSent', ++this.msgsSent)\n        } else if (channel === this._ioChannels.control) {\n            this.set('sentCtrlMsg', msgToSend)\n            numMsgs = this.set('msgsSentCtrl', ++this.msgsSentCtrl)\n        }\n        log('trace', 'Uib:_send', ` Channel '${channel}'. Sending msg #${numMsgs}`, msgToSend)()\n\n        this._socket.emit(channel, msgToSend)\n    } // --- End of Send Msg Fn --- //\n\n    /** Callback handler for messages from Node-RED\n     * NOTE: `this` is the class here rather the `socket` as would be normal since we bind the correct `this` in the call.\n     *       Use this._socket if needing reference to the socket.\n     * @callback ioSetupFromServer Called from ioSetup/this._socket.on(this.#ioChannels.server, this.stdMsgFromServer.bind(this))\n     * @param {object} receivedMsg The msg object from Node-RED\n     * @this Uib\n     */\n    _stdMsgFromServer(receivedMsg) {\n\n        // Make sure that msg is an object & not null\n        receivedMsg = makeMeAnObject(receivedMsg, 'payload')\n\n        // Don't process if the inbound msg is not for us\n        if (receivedMsg._uib && !this._forThis(receivedMsg._uib)) return\n        if (receivedMsg._ui && !this._forThis(receivedMsg._ui)) return\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedMsg)\n\n        // Track how many messages have been received\n        this.set('msgsReceived', ++this.msgsReceived)\n\n        // Emit specific document events on msg receipt that make it easy for coders to use\n        this._msgRcvdEvents(receivedMsg)\n\n        if ( !('_ui' in receivedMsg && !('payload' in receivedMsg)) ) {\n            // Save the msg for further processing\n            this.set('msg', receivedMsg)\n        }\n\n        log('info', 'Uib:ioSetup:stdMsgFromServer', `Channel '${this._ioChannels.server}'. Received msg #${this.msgsReceived}.`, receivedMsg)()\n\n        // ! NOTE: Don't try to handle specialist messages here. See _msgRcvdEvents.\n    } // -- End of websocket receive DATA msg from Node-RED -- //\n\n    /** Process msg._uib.command - Remember to update #extCommands with new allowed commands\n     * @param {object} msg Msg from Node-RED containing a msg._uib object\n     */\n    _uibCommand(msg) {\n        if (!msg._uib || !msg._uib.command) {\n            log('error', 'uibuilder:_uibCommand', 'Invalid command message received', { msg })()\n            msg.payload = msg.error = 'Invalid command message received'\n            this.send(msg)\n            return\n        }\n        const cmd = msg._uib.command\n        // Disallowed command request outputs error and ignores the msg (NB: Case must match)\n        if (!this.#extCommands.includes(cmd.trim())) {\n            log('error', 'Uib:_uibCommand', `Command '${cmd} is not allowed to be called externally`)()\n            return\n        }\n        const prop = msg._uib.prop\n        const value = msg._uib.value\n        const quiet = msg._uib.quiet ?? false\n        let response, info\n\n        // Don't forget to update `#extCommands`, `docs/client-docs/control-from-node-red.md` & `functions.md`\n        switch (cmd) {\n            case 'elementIsVisible': {\n                response = this.elementIsVisible(prop)\n                // info = `Element \"${prop}\" ${response ? 'is visible' : 'is not visible'}`\n                break\n            }\n\n            case 'elementExists': {\n                response = this.elementExists(prop, false)\n                info = `Element \"${prop}\" ${response ? 'exists' : 'does not exist'}`\n                break\n            }\n\n            case 'get': {\n                response = this.get(prop)\n                break\n            }\n\n            case 'getManagedVarList': {\n                if (prop === 'full') response = this.getManagedVarList()\n                else response = Object.values(this.getManagedVarList())\n                break\n            }\n\n            case 'getWatchedVars': {\n                if (prop === 'full') response = this.getWatchedVars()\n                else response = Object.values(this.getWatchedVars())\n                break\n            }\n\n            case 'htmlSend': {\n                response = this.htmlSend('', false)\n                break\n            }\n\n            case 'include': {\n                // include is async\n                response = _ui.include(prop, value)\n                break\n            }\n\n            case 'navigate': {\n                let newUrl\n                if (prop) newUrl = prop\n                else if (value) newUrl = value\n                response = this.navigate(newUrl)\n                break\n            }\n\n            case 'scrollTo': {\n                response = this.scrollTo(prop, value)\n                break\n            }\n\n            case 'set': {\n                let store = false\n                let autoload = false\n                if (msg._uib.options && msg._uib.options.store) {\n                    if (msg._uib.options.store === true) store = true\n                    if (msg._uib.options.autoload === true) autoload = true\n                }\n                response = this.set(prop, value, store, autoload)\n                break\n            }\n\n            case 'showMsg': {\n                response = this.showMsg(value, prop)\n                break\n            }\n\n            case 'showStatus': {\n                response = this.showStatus(value, prop)\n                break\n            }\n\n            case 'uiGet': {\n                response = _ui.uiGet(prop, value)\n                break\n            }\n\n            case 'uiWatch': {\n                response = this.uiWatch(prop)\n                break\n            }\n\n            case 'watchUrlHash': {\n                response = this.watchUrlHash(prop)\n                break\n            }\n\n            default: {\n                log('warning', 'Uib:_uibCommand', `Command '${cmd}' not yet implemented`)()\n                break\n            }\n        }\n\n        if (quiet !== true) {\n            if (response === undefined) {\n                response = `'${prop}' is undefined`\n            }\n            if (Object(response).constructor === Promise) {\n                // response = `'${cmd} ${prop}' submitted. Cmd is async, no response available`\n                response\n                    .then( (/** @type {any} */ data) => {\n                        msg.payload = msg._uib.response = data\n                        msg.info = msg._uib.info = info\n                        if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                        this.send(msg)\n                        return true\n                    })\n                    .catch( err => {\n                        log(0, 'Uib:_uibCommand', 'Error: ', err)()\n                    })\n            } else {\n                msg.payload = msg._uib.response = response\n                msg.info = msg._uib.info = info\n                if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                this.send(msg)\n            }\n        }\n    } // --- end of _uibCommand ---\n\n    /** Send log text to uibuilder's beacon endpoint (works even if socket.io not connected)\n     * @param {string} txtToSend Text string to send\n     * @param {string|undefined} logLevel Log level to use. If not supplied, will default to debug\n     */\n    beaconLog(txtToSend, logLevel) {\n        if (!logLevel) logLevel = 'debug'\n        navigator.sendBeacon('./_clientLog', `${logLevel}::${txtToSend}`)\n    }\n\n    /** Easily send the entire DOM/HTML msg back to Node-RED\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     * @param {boolean} [send] If true (default) directly send response to Node-RED. Is false when calling from Node-RED as a command.\n     * @returns {string} The HTML as a string\n     */\n    htmlSend(originator = '', send = true) {\n        const out = `<!doctype html>\\n${document.documentElement.outerHTML}`\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            payload: out,\n            length: out.length,\n            topic: this.topic,\n        }\n\n        log('trace', 'Uib:htmlSend', 'Sending full HTML to Node-RED', msg)()\n\n        if (send === true) this._send(msg, this._ioChannels.client, originator)\n        return out\n    }\n\n    /** Send log info back to Node-RED over uibuilder's websocket control output (Port #2)\n     * @param {...*} arguments All arguments passed to the function are added to the msg.payload\n     */\n    logToServer() {\n        this.sendCtrl({\n            uibuilderCtrl: 'client log message',\n            payload: arguments,\n            // \"version\":\"6.1.0-iife.min\",\n            _socketId: this._socket.id,\n            // \"ip\":\"::1\",\n            clientId: this.clientId,\n            tabId: this.tabId,\n            // \"url\":\"esp-test\",\n            pageName: this.pageName,\n            connections: this.connectedNum,\n            lastNavType: this.lastNavType,\n        })\n    }\n\n    /** Easily send a msg back to Node-RED on a DOM event\n     * @example In plain HTML/JavaScript\n     *    `<button id=\"button1\" name=\"button 1\" data-fred=\"jim\"></button>`\n     *    $('#button1').onclick = (evt) => {\n     *      uibuilder.eventSend(evt)\n     *    }\n     * @example\n     * In VueJS: `<b-button id=\"myButton1\" @click=\"doEvent\" data-something=\"hello\"></b-button>`\n     * In VueJS methods: `doEvent: uibuilder.eventSend,`\n     *\n     * All `data-` attributes will be passed back to Node-RED,\n     *    use them instead of arguments in the click function.\n     *    All target._ui custom properties are also passed back to Node-RED.\n     *\n     * @param {MouseEvent|any} domevent DOM Event object\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    eventSend(domevent, originator = '') { // eslint-disable-line sonarjs/cognitive-complexity\n        // @ts-ignore Handle case where vue messes up `this`\n        if ( this.$attrs ) {\n            log('error', 'Uib:eventSend', '`this` has been usurped by VueJS. Make sure that you wrap the call in a function: `doEvent: function (event) { uibuilder.eventSend(event) },`' )()\n            return\n        }\n        if (!domevent && !event) {\n            log('warn', 'Uib:eventSend', 'Neither the domevent nor the hidden event properties are set. You probably called this function directly rather than applying to an on click event.' )()\n            return\n        }\n        // Handle no argument, e.g. <button onClick=\"uibuilder.eventSend()\"> - event is a hidden variable when fn used in addEventListener\n        if (!domevent || !domevent.constructor) domevent = event\n\n        // The argument must be a DOM event\n        if ((!domevent.constructor.name.endsWith('Event')) || (!domevent.currentTarget)) {\n            log('warn', 'Uib:eventSend', `ARGUMENT NOT A DOM EVENT - use data attributes not function arguments to pass data. Arg Type: ${domevent.constructor.name}`, domevent)()\n            return\n        }\n\n        // Prevent default event action\n        domevent.preventDefault()\n\n        // The target element\n        const target = domevent.currentTarget\n\n        // Get target properties - only shows custom props not element default ones\n        const props = {}\n        Object.keys(target).forEach( key => {\n            if (key.startsWith('_')) return // Exclude private\n            props[key] = target[key]\n        })\n\n        // Attempt to get target attributs - can fail for certain target types\n        const ignoreAttribs = ['class', 'id', 'name']\n        let attribs\n        try {\n            attribs = Object.assign({},\n                ...Array.from(target.attributes,\n                    ( { name, value } ) => {\n                        if ( !ignoreAttribs.includes(name) ) {\n                            return ({ [name]: value })\n                        }\n                        return undefined\n                    }\n                )\n            )\n        } catch (e) {}\n\n        // If target embedded in a form, include the form data\n        let form\n        const frmVals = []\n        if ( target.form ) {\n            form = {}\n            form.valid = target.form.checkValidity()\n            Object.values(target.form).forEach( (frmEl, i) => {\n                const id = frmEl.id !== '' ? frmEl.id : (frmEl.name !== '' ? frmEl.name : `${i}-${frmEl.type}`)\n\n                // We must have both an element id (we may have forced one above) AND\n                // the element type MUST be not undefined - to allow for the extra properties added by frameworks such as Svelte\n                if (id !== '' && frmEl.type) {\n                    // Stupid HTML doesn't use value attrib for checkboxes. So override if value is set to default\n                    if ('checked' in frmEl && frmEl.value === 'on') frmEl.value = frmEl.checked.toString()\n\n                    frmVals.push( { key: id, val: frmEl.value } ) // simplified for addition to msg.payload\n\n                    form[id] = {\n                        'id': frmEl.id,\n                        'name': frmEl.name,\n                        'value': frmEl.value,\n                        'valid': frmEl.checkValidity(),\n                        'type': frmEl.type,\n                    }\n\n                    if (form[id].valid === false) {\n                        const v = frmEl.validity\n                        form[id].validity = {\n                            badInput: v.badInput === true ? v.badInput : undefined,\n                            customError: v.customError === true ? v.customError : undefined,\n                            patternMismatch: v.patternMismatch === true ? v.patternMismatch : undefined,\n                            rangeOverflow: v.rangeOverflow === true ? v.rangeOverflow : undefined,\n                            rangeUnderflow: v.rangeUnderflow === true ? v.rangeUnderflow : undefined,\n                            stepMismatch: v.stepMismatch === true ? v.stepMismatch : undefined,\n                            tooLong: v.tooLong === true ? v.tooLong : undefined,\n                            tooShort: v.tooShort === true ? v.tooShort : undefined,\n                            typeMismatch: v.typeMismatch === true ? v.typeMismatch : undefined,\n                            valueMissing: v.valueMissing === true ? v.valueMissing : undefined,\n                        }\n                    }\n\n                    if (frmEl.dataset) form[id].data = frmEl.dataset\n                }\n            })\n        }\n\n        // Check for CSS Classes\n        let classes\n        try {\n            classes = Array.from(target.classList)\n        } catch (e) {}\n\n        // Each `data-xxxx` attribute is added as a property\n        let payload = { ...target.dataset }\n\n        // Handle Notification events\n        let nprops\n        if ( Object.prototype.toString.call(target) === '[object Notification]') {\n            // Fixed payload for convenience\n            payload = `notification-${target.userAction}`\n            // Capture the notification properties\n            nprops = {\n                // userAction: target.userAction, // uib custom prop: click, close or error\n                actions: target.actions,\n                badge: target.badge,\n                body: target.body,\n                data: target.data,\n                dir: target.dir,\n                icon: target.icon,\n                image: target.image,\n                lang: target.lang,\n                renotify: target.renotify,\n                requireInteraction: target.requireInteraction,\n                silent: target.silent,\n                tag: target.tag,\n                timestamp: target.timestamp,\n                title: target.title,\n                vibrate: target.vibrate,\n            }\n        }\n        // console.log(Object.prototype.toString.call(target))\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            // - this may be an empty Object if no data attributes defined\n            payload: payload,\n\n            _ui: {\n                type: 'eventSend',\n                id: target.id !== '' ? target.id : undefined,\n                name: target.name !== '' ? target.name : undefined,\n                slotText: target.textContent ? target.textContent.substring(0, 255) : undefined,\n\n                form: form,\n                props: props,\n                attribs: attribs,\n                classes: classes,\n\n                notification: nprops,\n\n                event: domevent.type,\n                altKey: domevent.altKey,\n                ctrlKey: domevent.ctrlKey,\n                shiftKey: domevent.shiftKey,\n                metaKey: domevent.metaKey,\n\n                pointerType: domevent.pointerType,\n                nodeName: target.nodeName,\n\n                clientId: this.clientId,\n                pageName: this.pageName,\n                tabId: this.tabId,\n            }\n        }\n\n        if (frmVals.length > 0) {\n            frmVals.forEach( entry => {\n                msg.payload[entry.key] = entry.val\n            })\n        }\n\n        if (domevent.type === 'change') {\n            // Checkboxes don't have a value!!\n            msg._ui.newValue = msg.payload.value = 'checked' in target ? target.checked : domevent.target.value\n        }\n\n        log('trace', 'Uib:eventSend', 'Sending msg to Node-RED', msg)()\n        if (target.dataset && target.dataset.length === 0) log('warn', 'Uib:eventSend', 'No payload in msg. data-* attributes should be used.')()\n\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Send a standard message to NR\n     * @example uibuilder.send({payload:'Hello'})\n     * @param {object} msg Message to send\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    send(msg, originator = '') {\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    // ! TODO: Rooms do not auto-reconnect. Add tracking and update _onConnect\n\n    // NOTE: Rooms only understood by server not client so we have to use custom emits\n    //       They do not auto-reconnect\n\n    /** Send a msg to a pre-defined Socket.IO room\n     * @link https://socket.io/docs/v4/rooms/\n     * @param {string} room Name of a Socket.IO pre-defined room.\n     * @param {*} msg Message to send\n     */\n    sendRoom(room, msg) {\n        this._socket.emit('uib-room-send', room, msg )\n    }\n\n    joinRoom(room) {\n        this._socket.emit('uib-room-join', room)\n    }\n\n    leaveRoom(room) {\n        this._socket.emit('uib-room-leave', room)\n    }\n\n    /** Send a control msg to NR\n     * @param {object} msg Message to send\n     */\n    sendCtrl(msg) {\n        this._send(msg, this._ioChannels.control)\n    }\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Socket.IO -------- //\n\n    /** Return the Socket.IO namespace\n     * The cookie method is the most reliable but this falls back to trying to work it\n     * out from the URL if cookies not available. That won't work if page is in a sub-folder.\n     * since 2017-10-21 Improve method to cope with more complex paths - thanks to Steve Rickus @shrickus\n     * since 2017-11-10 v1.0.1 Check cookie first then url. cookie works even if the path is more complex (e.g. sub-folder)\n     * since 2020-01-25 Removed httpRoot from namespace to prevent proxy induced errors\n     * @returns {string} Socket.IO namespace\n     */\n    _getIOnamespace() {\n\n        let ioNamespace\n\n        /** Try getting the namespace cookie. */\n        ioNamespace = this.cookies['uibuilder-namespace']\n\n        // if it wasn't available, try using the current url path\n        if (ioNamespace === undefined || ioNamespace === '') {\n            // split url path & eliminate any blank elements, and trailing or double slashes\n            const u = window.location.pathname.split('/')\n                .filter(function (t) { return t.trim() !== '' })\n\n            /** since v2.0.5 Extra check for 0 length, Issue #73. since 2017-11-06 If the last element of the path is an .html file name, remove it */\n            if (u.length > 0 && (u[u.length - 1].endsWith('.html'))) u.pop()\n\n            // Get the last part of the url path, this MUST match the namespace in uibuilder\n            ioNamespace = u.pop()\n\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via url path: ${ioNamespace}`)()\n        } else {\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via cookie: ${ioNamespace}`)()\n        }\n\n        this.url = ioNamespace\n        // Namespace HAS to start with a /\n        ioNamespace = '/' + ioNamespace\n\n        log('trace', 'uibuilder.module.js:getIOnamespace', `Final Socket.IO namespace: ${ioNamespace}`)()\n\n        return ioNamespace\n    } // --- End of set IO namespace --- //\n\n    /** Function used to check whether Socket.IO is connected to the server, reconnect if not (recursive)\n     * @param {number} [delay] Initial delay before checking (ms). Default=2000ms\n     * @param {number} [factor] Multiplication factor for subsequent checks (delay*factor). Default=1.5\n     * @param {number} [depth] Recursion depth\n     * @returns {boolean|undefined} Whether or not Socket.IO is connected to uibuilder in Node-RED\n     */\n    _checkConnect(delay, factor, depth = 1) {\n        if ( navigator.onLine === false ) return // Don't bother if we know we are offline\n\n        if (!delay) delay = this.retryMs\n        if (!factor) factor = this.retryFactor\n\n        log('trace', 'Uib:checkConnect', `Checking connection. Connected: ${this._socket.connected}. Timer: ${this.#timerid}. Depth: ${depth}. Delay: ${delay}. Factor: ${factor}`, this._socket)()\n\n        // If we are connected ...\n        if (this._socket.connected === true) {\n            // Clear the setTimeout\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this.set('ioConnected', true)\n            this.set('socketError', null)\n            return true\n        }\n\n        // ... we aren't connected so:\n        this.set('ioConnected', false)\n\n        // we only want one running at a time\n        if (this.#timerid) window.clearTimeout(this.#timerid)\n\n        // Create the new timer\n        this.#timerid = window.setTimeout(() => {\n            log('warn', 'Uib:checkConnect:setTimeout', `Socket.IO reconnection attempt. Current delay: ${delay}. Depth: ${depth}`)()\n\n            // this is necessary sometimes when the socket fails to connect on startup\n            this._socket.disconnect()\n\n            // Try to reconnect\n            this._socket.connect()\n\n            // don't need to check whether we have connected as the timer will have been cleared if we have\n            this.#timerid = null\n\n            // @ts-ignore Create new timer for next time round with extended delay\n            this._checkConnect(delay * factor, factor, depth++)\n        }, delay)\n\n        return false\n    } // --- End of checkConnect Fn--- //\n\n    // See message handling section for msg receipt handlers\n\n    /** Called by _ioSetup when Socket.IO connects to Node-RED */\n    _onConnect() {\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n        log('info', 'Uib:ioSetup', `\u2705 SOCKET CONNECTED. Connection count: ${this.connectedNum}, Is a Recovery?: ${this._socket.recovered}. \\nNamespace: ${this.ioNamespace}`)()\n        this._dispatchCustomEvent('uibuilder:socket:connected', { 'numConnections': this.connectedNum, 'isRecovery': this._socket.recovered })\n\n        this._checkConnect() // resets any reconnection timers & sets connected flag\n    }\n\n    /** Called by _ioSetup when Socket.IO disconnects from Node-RED\n     * @param {string} reason Disconnection title\n     */\n    _onDisconnect(reason) {\n        // reason === 'io server disconnect' - redeploy of Node instance\n        // reason === 'transport close' - Node-RED terminating\n        // reason === 'ping timeout' - didn't receive a pong response?\n        log('info', 'Uib:ioSetup:socket-disconnect', `\u26D4 Socket Disconnected. Reason: ${reason}`)()\n\n        this._dispatchCustomEvent('uibuilder:socket:disconnected', reason)\n\n        /** A workaround for SIO's failure to reconnect after a disconnection */\n        this._checkConnect()\n    }\n\n    /** Setup Socket.io\n     * since v2.0.0-beta2 Moved to a function and called by the user (uibuilder.start()) so that namespace & path can be passed manually if needed\n     * @returns {boolean} Attaches socket.io manager to self._socket and updates self.ioNamespace & self.ioPath as needed\n     */\n    _ioSetup() {\n\n        // Just a notification, actual load is done outside the class (see start of file)\n        if (io === undefined) {\n            log('error', 'Uib:ioSetup', 'Socket.IO client not loaded, Node-RED comms will not work')()\n            return false\n        }\n\n        // If socket is already set up, close it and remove all of the listeners\n        if (this._socket) {\n            log('trace', 'Uib:ioSetup', 'Removing listeners in preparation for redoing Socket.IO connections')()\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this._socket.close()\n            this._socket.offAny()\n            this._socket = undefined\n            this.set('ioConnected', false)\n        }\n\n        // Update the URL path to make sure we have the right one\n        this.socketOptions.path = this.ioPath\n\n        // NOTE: this._socket.auth is now set by callback and so automatically updated for each client (re)connection. No need to set here\n\n        // Create the socket - make sure client uses Socket.IO version from the uibuilder module (using path)\n        log('trace', 'Uib:ioSetup', `About to create IO object. Transports: [${this.socketOptions.transports.join(', ')}]`)()\n        this._socket = io(this.ioNamespace, this.socketOptions)\n\n        this._connectGlobal()\n\n        /** When the socket is connected - set ioConnected flag and reset connect timer  */\n        this._socket.on('connect', this._onConnect.bind(this))\n\n        // RECEIVE a STANDARD, non-control msg from Node-RED server\n        this._socket.on(this._ioChannels.server, this._stdMsgFromServer.bind(this))\n\n        // RECEIVE a CONTROL msg from Node-RED server - see also sendCtrl()\n        this._socket.on(this._ioChannels.control, this._ctrlMsgFromServer.bind(this))\n\n        // When the socket is disconnected ..............\n        this._socket.on('disconnect', this._onDisconnect.bind(this))\n\n        // Socket.io connection error - probably the wrong ioPath - or client is offline\n        this._socket.on('connect_error', (err) => {\n            if ( navigator.onLine === false ) return // Don't bother with an error if we know we are offline\n            log('error', 'Uib:ioSetup:connect_error', `\u274C Socket.IO Connect Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket connect error processing ---\n\n        // Socket.io error - from the server (socket.use middleware triggered an error response)\n        this._socket.on('error', (err) => {\n            log('error', 'Uib:ioSetup:error', `\u274C Socket.IO Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket error processing ---\n\n        // Ensure we are connected, retry if not\n        this._checkConnect()\n\n        return true\n\n        /* We really don't need these, just for interest\n            self._socket.io.on('packet', function onPacket(data){\n                // we get one of these for each REAL msg (not ping/pong)\n                console.debug('PACKET', data)\n            })\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n                //console.dir(self._socket)\n            }) // --- End of socket pong processing ---\n            self._socket.io.on('packet', function(data){\n                // We get one of these for actual messages, not ping/pong\n                console.debug('PACKET', data)\n            })\n            self._socket.on('connect_timeout', function(timeout) {\n                console.debug('SOCKET CONNECT TIMEOUT - Namespace: ' + ioNamespace + ', Timeout: ' + timeout)\n            }) // --- End of socket connect timeout processing ---\n            self._socket.on('reconnect', function(attemptNum) {\n                console.debug('SOCKET RECONNECTED - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect processing ---\n            self._socket.on('reconnect_attempt', function(attemptNum) {\n                console.debug('SOCKET RECONNECT ATTEMPT - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect_attempt processing ---\n            self._socket.on('reconnecting', function(attemptNum) {\n                console.debug('SOCKET RECONNECTING - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnecting processing ---\n            self._socket.on('reconnect_error', function(err) {\n                console.debug('SOCKET RECONNECT ERROR - Namespace: ' + ioNamespace + ', Reason: ' + err.message)\n                //console.dir(err)\n            }) // --- End of socket reconnect_error processing ---\n            self._socket.on('reconnect_failed', function() {\n                console.debug('SOCKET RECONNECT FAILED - Namespace: ' + ioNamespace)\n            }) // --- End of socket reconnect_failed processing ---\n            self._socket.on('ping', function() {\n                console.debug('SOCKET PING')\n            }) // --- End of socket ping processing ---\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n            }) // --- End of socket pong processing ---\n            */\n    } // ---- End of ioSetup ---- //\n\n    /** Connect to global namespace & create global listener that updates the `globalMsg` var */\n    _connectGlobal() {\n        this._socketGlobal = io('/', this.socketOptions)\n        this._socketGlobal.onAny( (...args) => {\n            this.set('globalMsg', args.slice(0, -1))\n        })\n    }\n\n    /** Manually (re)connect socket.io */\n    connect() {\n        // ? Should I use this._checkConnect()?\n        this._socket.connect()\n    }\n\n    /** Manually disconnect socket.io and stop any auto-reconnect timer */\n    disconnect() {\n        this._socket.disconnect()\n        // As this is a manual disconnect, stop any reconnect timers\n        if (this.#timerid) window.clearTimeout(this.#timerid)\n    }\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Class construction & startup method -------- //\n\n    constructor() {\n        log('trace', 'Uib:constructor', 'Starting')()\n\n        // Track whether the client is online or offline\n        window.addEventListener('offline', (e) => {\n            this.set('online', false)\n            this.set('ioConnected', false)\n            log('warn', 'Browser', 'DISCONNECTED from network')()\n        })\n        window.addEventListener('online', (e) => {\n            this.set('online', true)\n            log('warn', 'Browser', 'Reconnected to network')()\n            this._checkConnect()\n        })\n\n        document.cookie.split(';').forEach((c) => {\n            const splitC = c.split('=')\n            this.cookies[splitC[0].trim()] = splitC[1]\n        })\n\n        /** Client ID set by uibuilder - lasts until browser profile is closed, applies to all tabs */\n        this.set('clientId', this.cookies['uibuilder-client-id'])\n        log('trace', 'Uib:constructor', 'Client ID: ', this.clientId)()\n\n        /** Tab ID - lasts while the tab is open (even if reloaded)\n         * WARNING: Duplicating a tab retains the same tabId\n         */\n        this.set('tabId', window.sessionStorage.getItem('tabId'))\n        if (!this.tabId) {\n            this.set('tabId', `t${Math.floor(Math.random() * 1000000)}`)\n            window.sessionStorage.setItem('tabId', this.tabId)\n        }\n\n        // document.addEventListener('pagehide', (event) => {\n        //     // console.log(`pagehide. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pagehide. From Cache?: ${event.persisted}`)\n        // })\n        // document.addEventListener('pageshow', (event) => {\n        //     // console.log(`pageshow. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pageshow. From Cache?: ${event.persisted}`)\n        // })\n        document.addEventListener('load', () => {\n            this.set('isVisible', true)\n        })\n        document.addEventListener('visibilitychange', () => {\n            // hidden=unload, minimise. visible=un-minimise (not fired on load)\n            this.set('isVisible', document.visibilityState === 'visible')\n            this.sendCtrl({ uibuilderCtrl: 'visibility', isVisible: this.isVisible })\n            // navigator.userActivation is experimental Chromium only\n            // console.log('visibilitychange', ':', `Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n            // navigator.sendBeacon('./_clientLog', `${(new Date()).toISOString()} Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n        })\n\n        // Set a listener to update showStatus table if it is active\n        document.addEventListener('uibuilder:propertyChanged', (event) => {\n            if (!this.#isShowStatus) return\n\n            // @ts-ignore\n            if (event.detail.prop in this.#showStatus) {\n                // @ts-ignore\n                document.querySelector(`td[data-vartype=\"${event.detail.prop}\"]`).innerText = JSON.stringify(event.detail.value)\n            }\n        })\n\n        this.set('ioNamespace', this._getIOnamespace())\n\n        //#region - Try to make sure client uses Socket.IO client version from the uibuilder module (using cookie or path) @since v2.0.0 2019-02-24 allows for httpNodeRoot\n\n        /** httpNodeRoot (to set path) */\n        if ('uibuilder-webRoot' in this.cookies) {\n            this.set('httpNodeRoot', this.cookies['uibuilder-webRoot'])\n            log('trace', 'Uib:constructor', `httpNodeRoot set by cookie to \"${this.httpNodeRoot}\"`)()\n        } else {\n            // split current url path, eliminate any blank elements and trailing or double slashes\n            const fullPath = window.location.pathname.split('/').filter(function (t) { return t.trim() !== '' })\n            /** handle url includes file name - @since v2.0.5 Extra check for 0 length, Issue #73. */\n            if (fullPath.length > 0 && fullPath[fullPath.length - 1].endsWith('.html')) fullPath.pop()\n            fullPath.pop() // gives the last path section of the url\n            this.set('httpNodeRoot', `/${fullPath.join('/')}`)\n            log('trace', '[Uib:constructor]', `httpNodeRoot set by URL parsing to \"${this.httpNodeRoot}\". NOTE: This may fail for pages in sub-folders.`)()\n        }\n        this.set('ioPath', urlJoin(this.httpNodeRoot, Uib._meta.displayName, 'vendor', 'socket.io'))\n        log('trace', 'Uib:constructor', `ioPath: \"${this.ioPath}\"`)()\n\n        //#endregion\n\n        // Work out pageName\n        this.set('pageName', window.location.pathname.replace(`${this.ioNamespace}/`, ''))\n        if ( this.pageName.endsWith('/') ) this.set('pageName', `${this.pageName}index.html`)\n        if ( this.pageName === '' ) this.set('pageName', 'index.html')\n\n        // Attempt to restore autoload variables\n        try {\n            const autoloadVars = this.getStore('_uibAutoloadVars')\n            if (Object.keys(autoloadVars).length > 0) {\n                Object.keys(autoloadVars).forEach( (id) => {\n                    this.set(id, this.getStore(id))\n                })\n            }\n        } catch (e) {}\n\n        this._dispatchCustomEvent('uibuilder:constructorComplete')\n\n        log('trace', 'Uib:constructor', 'Ending')()\n    }\n\n    /** Start up Socket.IO comms and listeners\n     * This has to be done separately because if running from a web page in a sub-folder of src/dist, uibuilder cannot\n     * necessarily work out the correct ioPath to use.\n     * Also, if cookies aren't permitted in the browser, both ioPath and ioNamespace may need to be specified.\n     * @param {object} [options] The start options object.\n     * @returns {void}\n     */\n    start(options) {\n        log('trace', 'Uib:start', 'Starting')()\n\n        // Cancel the msg event handler if already present\n        if ( this.#MsgHandler ) this.cancelChange('msg', this.#MsgHandler)\n\n        if (this.started === true) {\n            log('info', 'Uib:start', 'Start function already called. Resetting Socket.IO and msg handler.')()\n        }\n\n        log('log', 'Uib:start', 'Cookies: ', this.cookies, `\\nClient ID: ${this.clientId}`)()\n        log('trace', 'Uib:start', 'ioNamespace: ', this.ioNamespace, `\\nioPath: ${this.ioPath}`)()\n\n        // Handle options\n        if (options) {\n            if (options.ioNamespace) this.set('ioNamespace', options.ioNamespace)\n            if (options.ioPath) this.set('ioPath', options.ioPath)\n            if (options.nopolling && this.socketOptions.transports[0] === 'polling') this.socketOptions.transports.shift()\n            // See below for handling of options.loadStylesheet\n        }\n\n        // Do we need to load styles?\n        if ( document.styleSheets.length >= 1 || (document.styleSheets.length === 1 && document.styleSheets[0].cssRules.length === 0) ) {\n            log('info', 'Uib:start', 'Styles already loaded so not loading uibuilder default styles.')()\n        } else {\n            if (options && options.loadStylesheet === false) log('info', 'Uib:start', 'No styles loaded & options.loadStylesheet === false.')()\n            else {\n                log('info', 'Uib:start', 'No styles loaded, loading uibuilder default styles.')()\n                this.loadStyleSrc(`${this.httpNodeRoot}/uibuilder/uib-brand.min.css`)\n            }\n        }\n\n        /** Handle specialist messages like reload and _ui -> Moved to _msgRcvdEvents */\n\n        // Track last browser navigation type: navigate, reload, back_forward, prerender\n        // TODO Needs more work - updates on navigation needed?\n        const [entry] = performance.getEntriesByType('navigation')\n        // @ts-ignore\n        this.set('lastNavType', entry.type)\n\n        // Start up (or restart) Socket.IO connections and listeners. Returns false if io not found\n        this.set('started', this._ioSetup())\n\n        if ( this.started === true ) {\n            log('trace', 'Uib:start', 'Start completed. Socket.IO client library loaded.')()\n        } else {\n            log('error', 'Uib:start', 'Start completed. ERROR: Socket.IO client library NOT LOADED.')()\n        }\n\n        // Watch for URL hash changes in case using a front-end router. Updates watched var `urlHash` and socket.io `auth.urlHash`\n        this._watchHashChanges()\n\n        // Check if Vue is present (used for dynamic UI processing)\n        if (window['Vue']) {\n            this.set('isVue', true)\n            try {\n                this.set('vueVersion', window['Vue'].version)\n            } catch (e) { }\n            log('trace', 'Uib:start', `VueJS is loaded. Version: ${this.vueVersion}`)()\n        } else {\n            log('trace', 'Uib:start', 'VueJS is not loaded.')()\n        }\n\n        // Check if DOMPurify library is loaded\n        if (window['DOMPurify']) {\n            this.set('purify', true)\n            log('trace', 'Uib:start', 'DOMPurify is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'DOMPurify is not loaded.')()\n        }\n        // Check if Markdown-IT library is loaded\n        if (window['markdownit']) {\n            this.set('markdown', true)\n            log('trace', 'Uib:start', 'Markdown-IT is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'Markdown-IT is not loaded.')()\n        }\n\n        // if (window['DOMPurify']) {\n        //     this.set('purify', true)\n        //     log('trace', 'Uib:start', 'DOMPurify is loaded.')\n        // } else {\n        //     log('trace', 'Uib:start', 'DOMPurify is not loaded.')\n        // }\n\n        // Set up msg listener for the optional showMsg\n        this.onChange('msg', (msg) => {\n            if (this.#isShowMsg === true) {\n                const eMsg = document.getElementById('uib_last_msg')\n                if (eMsg) eMsg.innerHTML = this.syntaxHighlight(msg)\n            }\n        })\n\n        this._dispatchCustomEvent('uibuilder:startComplete')\n    }\n\n    //#endregion -------- ------------ -------- //\n} // ==== End of Class Uib ====\n\n//#region --- Wrap up - get things started ---\n\n// Create an instance (we will only ever want one)\nconst uibuilder = new Uib()\n\n// Assign reference to the instance to the global `window` object\n// Only useful if loading via <script> tag - prefer loading via `import uibuilder from ...`\nif (!window['uibuilder']) {\n    window['uibuilder'] = uibuilder\n} else {\n    log('error', 'uibuilder.module.js', '`uibuilder` already assigned to window. Have you tried to load it more than once?')\n}\nif (!window['uib']) {\n    window['uib'] = uibuilder\n} else {\n    log('warn', 'uibuilder.module.js', '`uib` shortcut already assigned to window.')\n}\n\n// Assign `$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$`.\nif (!window['$']) {\n    /** @type {HTMLElement} */\n    window['$'] = window['uibuilder'].$ // document.querySelector.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` or `uib.$` instead.')\n}\n// Assign `$$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$$']) {\n    /** @type {HTMLElement} */\n    window['$$'] = window['uibuilder'].$$ // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` or `uib.$$` instead.')\n}\n\n// Assign `$ui` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$ui']) {\n    /** @type {HTMLElement} */\n    window['$ui'] = window['uibuilder'].$ui // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$ui`, it is already in use. Use `uibuilder.$ui` or `uib.$ui` instead.')\n}\n\n// Can import as `import uibuilder from ...` OR `import {uibuilder} from ...`\nexport { uibuilder }\nexport default uibuilder\n\n// Attempt to run start fn\nuibuilder.start()\n\n// Add the class as a new Custom Element to the window object\ncustomElements.define('uib-var', UibVar)\n\n//#endregion --- Wrap up ---\n\n// EOF\n", "const PACKET_TYPES = Object.create(null); // no Map = no polyfill\nPACKET_TYPES[\"open\"] = \"0\";\nPACKET_TYPES[\"close\"] = \"1\";\nPACKET_TYPES[\"ping\"] = \"2\";\nPACKET_TYPES[\"pong\"] = \"3\";\nPACKET_TYPES[\"message\"] = \"4\";\nPACKET_TYPES[\"upgrade\"] = \"5\";\nPACKET_TYPES[\"noop\"] = \"6\";\nconst PACKET_TYPES_REVERSE = Object.create(null);\nObject.keys(PACKET_TYPES).forEach(key => {\n    PACKET_TYPES_REVERSE[PACKET_TYPES[key]] = key;\n});\nconst ERROR_PACKET = { type: \"error\", data: \"parser error\" };\nexport { PACKET_TYPES, PACKET_TYPES_REVERSE, ERROR_PACKET };\n", "import { PACKET_TYPES } from \"./commons.js\";\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        Object.prototype.toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\n// ArrayBuffer.isView method is not defined in IE10\nconst isView = obj => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj && obj.buffer instanceof ArrayBuffer;\n};\nconst encodePacket = ({ type, data }, supportsBinary, callback) => {\n    if (withNativeBlob && data instanceof Blob) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(data, callback);\n        }\n    }\n    else if (withNativeArrayBuffer &&\n        (data instanceof ArrayBuffer || isView(data))) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(new Blob([data]), callback);\n        }\n    }\n    // plain string\n    return callback(PACKET_TYPES[type] + (data || \"\"));\n};\nconst encodeBlobAsBase64 = (data, callback) => {\n    const fileReader = new FileReader();\n    fileReader.onload = function () {\n        const content = fileReader.result.split(\",\")[1];\n        callback(\"b\" + (content || \"\"));\n    };\n    return fileReader.readAsDataURL(data);\n};\nfunction toArray(data) {\n    if (data instanceof Uint8Array) {\n        return data;\n    }\n    else if (data instanceof ArrayBuffer) {\n        return new Uint8Array(data);\n    }\n    else {\n        return new Uint8Array(data.buffer, data.byteOffset, data.byteLength);\n    }\n}\nlet TEXT_ENCODER;\nexport function encodePacketToBinary(packet, callback) {\n    if (withNativeBlob && packet.data instanceof Blob) {\n        return packet.data\n            .arrayBuffer()\n            .then(toArray)\n            .then(callback);\n    }\n    else if (withNativeArrayBuffer &&\n        (packet.data instanceof ArrayBuffer || isView(packet.data))) {\n        return callback(toArray(packet.data));\n    }\n    encodePacket(packet, false, encoded => {\n        if (!TEXT_ENCODER) {\n            TEXT_ENCODER = new TextEncoder();\n        }\n        callback(TEXT_ENCODER.encode(encoded));\n    });\n}\nexport { encodePacket };\n", "// imported from https://github.com/socketio/base64-arraybuffer\nconst chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';\n// Use a lookup table to find the index.\nconst lookup = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);\nfor (let i = 0; i < chars.length; i++) {\n    lookup[chars.charCodeAt(i)] = i;\n}\nexport const encode = (arraybuffer) => {\n    let bytes = new Uint8Array(arraybuffer), i, len = bytes.length, base64 = '';\n    for (i = 0; i < len; i += 3) {\n        base64 += chars[bytes[i] >> 2];\n        base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];\n        base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];\n        base64 += chars[bytes[i + 2] & 63];\n    }\n    if (len % 3 === 2) {\n        base64 = base64.substring(0, base64.length - 1) + '=';\n    }\n    else if (len % 3 === 1) {\n        base64 = base64.substring(0, base64.length - 2) + '==';\n    }\n    return base64;\n};\nexport const decode = (base64) => {\n    let bufferLength = base64.length * 0.75, len = base64.length, i, p = 0, encoded1, encoded2, encoded3, encoded4;\n    if (base64[base64.length - 1] === '=') {\n        bufferLength--;\n        if (base64[base64.length - 2] === '=') {\n            bufferLength--;\n        }\n    }\n    const arraybuffer = new ArrayBuffer(bufferLength), bytes = new Uint8Array(arraybuffer);\n    for (i = 0; i < len; i += 4) {\n        encoded1 = lookup[base64.charCodeAt(i)];\n        encoded2 = lookup[base64.charCodeAt(i + 1)];\n        encoded3 = lookup[base64.charCodeAt(i + 2)];\n        encoded4 = lookup[base64.charCodeAt(i + 3)];\n        bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n        bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n        bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n    }\n    return arraybuffer;\n};\n", "import { ERROR_PACKET, PACKET_TYPES_REVERSE } from \"./commons.js\";\nimport { decode } from \"./contrib/base64-arraybuffer.js\";\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nexport const decodePacket = (encodedPacket, binaryType) => {\n    if (typeof encodedPacket !== \"string\") {\n        return {\n            type: \"message\",\n            data: mapBinary(encodedPacket, binaryType)\n        };\n    }\n    const type = encodedPacket.charAt(0);\n    if (type === \"b\") {\n        return {\n            type: \"message\",\n            data: decodeBase64Packet(encodedPacket.substring(1), binaryType)\n        };\n    }\n    const packetType = PACKET_TYPES_REVERSE[type];\n    if (!packetType) {\n        return ERROR_PACKET;\n    }\n    return encodedPacket.length > 1\n        ? {\n            type: PACKET_TYPES_REVERSE[type],\n            data: encodedPacket.substring(1)\n        }\n        : {\n            type: PACKET_TYPES_REVERSE[type]\n        };\n};\nconst decodeBase64Packet = (data, binaryType) => {\n    if (withNativeArrayBuffer) {\n        const decoded = decode(data);\n        return mapBinary(decoded, binaryType);\n    }\n    else {\n        return { base64: true, data }; // fallback for old browsers\n    }\n};\nconst mapBinary = (data, binaryType) => {\n    switch (binaryType) {\n        case \"blob\":\n            if (data instanceof Blob) {\n                // from WebSocket + binaryType \"blob\"\n                return data;\n            }\n            else {\n                // from HTTP long-polling or WebTransport\n                return new Blob([data]);\n            }\n        case \"arraybuffer\":\n        default:\n            if (data instanceof ArrayBuffer) {\n                // from HTTP long-polling (base64) or WebSocket + binaryType \"arraybuffer\"\n                return data;\n            }\n            else {\n                // from WebTransport (Uint8Array)\n                return data.buffer;\n            }\n    }\n};\n", "import { encodePacket, encodePacketToBinary } from \"./encodePacket.js\";\nimport { decodePacket } from \"./decodePacket.js\";\nimport { ERROR_PACKET } from \"./commons.js\";\nconst SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text\nconst encodePayload = (packets, callback) => {\n    // some packets may be added to the array while encoding, so the initial length must be saved\n    const length = packets.length;\n    const encodedPackets = new Array(length);\n    let count = 0;\n    packets.forEach((packet, i) => {\n        // force base64 encoding for binary packets\n        encodePacket(packet, false, encodedPacket => {\n            encodedPackets[i] = encodedPacket;\n            if (++count === length) {\n                callback(encodedPackets.join(SEPARATOR));\n            }\n        });\n    });\n};\nconst decodePayload = (encodedPayload, binaryType) => {\n    const encodedPackets = encodedPayload.split(SEPARATOR);\n    const packets = [];\n    for (let i = 0; i < encodedPackets.length; i++) {\n        const decodedPacket = decodePacket(encodedPackets[i], binaryType);\n        packets.push(decodedPacket);\n        if (decodedPacket.type === \"error\") {\n            break;\n        }\n    }\n    return packets;\n};\nexport function createPacketEncoderStream() {\n    return new TransformStream({\n        transform(packet, controller) {\n            encodePacketToBinary(packet, encodedPacket => {\n                const payloadLength = encodedPacket.length;\n                let header;\n                // inspired by the WebSocket format: https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API/Writing_WebSocket_servers#decoding_payload_length\n                if (payloadLength < 126) {\n                    header = new Uint8Array(1);\n                    new DataView(header.buffer).setUint8(0, payloadLength);\n                }\n                else if (payloadLength < 65536) {\n                    header = new Uint8Array(3);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 126);\n                    view.setUint16(1, payloadLength);\n                }\n                else {\n                    header = new Uint8Array(9);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 127);\n                    view.setBigUint64(1, BigInt(payloadLength));\n                }\n                // first bit indicates whether the payload is plain text (0) or binary (1)\n                if (packet.data && typeof packet.data !== \"string\") {\n                    header[0] |= 0x80;\n                }\n                controller.enqueue(header);\n                controller.enqueue(encodedPacket);\n            });\n        }\n    });\n}\nlet TEXT_DECODER;\nfunction totalLength(chunks) {\n    return chunks.reduce((acc, chunk) => acc + chunk.length, 0);\n}\nfunction concatChunks(chunks, size) {\n    if (chunks[0].length === size) {\n        return chunks.shift();\n    }\n    const buffer = new Uint8Array(size);\n    let j = 0;\n    for (let i = 0; i < size; i++) {\n        buffer[i] = chunks[0][j++];\n        if (j === chunks[0].length) {\n            chunks.shift();\n            j = 0;\n        }\n    }\n    if (chunks.length && j < chunks[0].length) {\n        chunks[0] = chunks[0].slice(j);\n    }\n    return buffer;\n}\nexport function createPacketDecoderStream(maxPayload, binaryType) {\n    if (!TEXT_DECODER) {\n        TEXT_DECODER = new TextDecoder();\n    }\n    const chunks = [];\n    let state = 0 /* READ_HEADER */;\n    let expectedLength = -1;\n    let isBinary = false;\n    return new TransformStream({\n        transform(chunk, controller) {\n            chunks.push(chunk);\n            while (true) {\n                if (state === 0 /* READ_HEADER */) {\n                    if (totalLength(chunks) < 1) {\n                        break;\n                    }\n                    const header = concatChunks(chunks, 1);\n                    isBinary = (header[0] & 0x80) === 0x80;\n                    expectedLength = header[0] & 0x7f;\n                    if (expectedLength < 126) {\n                        state = 3 /* READ_PAYLOAD */;\n                    }\n                    else if (expectedLength === 126) {\n                        state = 1 /* READ_EXTENDED_LENGTH_16 */;\n                    }\n                    else {\n                        state = 2 /* READ_EXTENDED_LENGTH_64 */;\n                    }\n                }\n                else if (state === 1 /* READ_EXTENDED_LENGTH_16 */) {\n                    if (totalLength(chunks) < 2) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 2);\n                    expectedLength = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length).getUint16(0);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else if (state === 2 /* READ_EXTENDED_LENGTH_64 */) {\n                    if (totalLength(chunks) < 8) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 8);\n                    const view = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length);\n                    const n = view.getUint32(0);\n                    if (n > Math.pow(2, 53 - 32) - 1) {\n                        // the maximum safe integer in JavaScript is 2^53 - 1\n                        controller.enqueue(ERROR_PACKET);\n                        break;\n                    }\n                    expectedLength = n * Math.pow(2, 32) + view.getUint32(4);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else {\n                    if (totalLength(chunks) < expectedLength) {\n                        break;\n                    }\n                    const data = concatChunks(chunks, expectedLength);\n                    controller.enqueue(decodePacket(isBinary ? data : TEXT_DECODER.decode(data), binaryType));\n                    state = 0 /* READ_HEADER */;\n                }\n                if (expectedLength === 0 || expectedLength > maxPayload) {\n                    controller.enqueue(ERROR_PACKET);\n                    break;\n                }\n            }\n        }\n    });\n}\nexport const protocol = 4;\nexport { encodePacket, encodePayload, decodePacket, decodePayload };\n", "/**\n * Initialize a new `Emitter`.\n *\n * @api public\n */\n\nexport function Emitter(obj) {\n  if (obj) return mixin(obj);\n}\n\n/**\n * Mixin the emitter properties.\n *\n * @param {Object} obj\n * @return {Object}\n * @api private\n */\n\nfunction mixin(obj) {\n  for (var key in Emitter.prototype) {\n    obj[key] = Emitter.prototype[key];\n  }\n  return obj;\n}\n\n/**\n * Listen on the given `event` with `fn`.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.on =\nEmitter.prototype.addEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])\n    .push(fn);\n  return this;\n};\n\n/**\n * Adds an `event` listener that will be invoked a single\n * time then automatically removed.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.once = function(event, fn){\n  function on() {\n    this.off(event, on);\n    fn.apply(this, arguments);\n  }\n\n  on.fn = fn;\n  this.on(event, on);\n  return this;\n};\n\n/**\n * Remove the given callback for `event` or all\n * registered callbacks.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.off =\nEmitter.prototype.removeListener =\nEmitter.prototype.removeAllListeners =\nEmitter.prototype.removeEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n\n  // all\n  if (0 == arguments.length) {\n    this._callbacks = {};\n    return this;\n  }\n\n  // specific event\n  var callbacks = this._callbacks['$' + event];\n  if (!callbacks) return this;\n\n  // remove all handlers\n  if (1 == arguments.length) {\n    delete this._callbacks['$' + event];\n    return this;\n  }\n\n  // remove specific handler\n  var cb;\n  for (var i = 0; i < callbacks.length; i++) {\n    cb = callbacks[i];\n    if (cb === fn || cb.fn === fn) {\n      callbacks.splice(i, 1);\n      break;\n    }\n  }\n\n  // Remove event specific arrays for event types that no\n  // one is subscribed for to avoid memory leak.\n  if (callbacks.length === 0) {\n    delete this._callbacks['$' + event];\n  }\n\n  return this;\n};\n\n/**\n * Emit `event` with the given args.\n *\n * @param {String} event\n * @param {Mixed} ...\n * @return {Emitter}\n */\n\nEmitter.prototype.emit = function(event){\n  this._callbacks = this._callbacks || {};\n\n  var args = new Array(arguments.length - 1)\n    , callbacks = this._callbacks['$' + event];\n\n  for (var i = 1; i < arguments.length; i++) {\n    args[i - 1] = arguments[i];\n  }\n\n  if (callbacks) {\n    callbacks = callbacks.slice(0);\n    for (var i = 0, len = callbacks.length; i < len; ++i) {\n      callbacks[i].apply(this, args);\n    }\n  }\n\n  return this;\n};\n\n// alias used for reserved events (protected method)\nEmitter.prototype.emitReserved = Emitter.prototype.emit;\n\n/**\n * Return array of callbacks for `event`.\n *\n * @param {String} event\n * @return {Array}\n * @api public\n */\n\nEmitter.prototype.listeners = function(event){\n  this._callbacks = this._callbacks || {};\n  return this._callbacks['$' + event] || [];\n};\n\n/**\n * Check if this emitter has `event` handlers.\n *\n * @param {String} event\n * @return {Boolean}\n * @api public\n */\n\nEmitter.prototype.hasListeners = function(event){\n  return !! this.listeners(event).length;\n};\n", "export const globalThisShim = (() => {\n    if (typeof self !== \"undefined\") {\n        return self;\n    }\n    else if (typeof window !== \"undefined\") {\n        return window;\n    }\n    else {\n        return Function(\"return this\")();\n    }\n})();\n", "import { globalThisShim as globalThis } from \"./globalThis.js\";\nexport function pick(obj, ...attr) {\n    return attr.reduce((acc, k) => {\n        if (obj.hasOwnProperty(k)) {\n            acc[k] = obj[k];\n        }\n        return acc;\n    }, {});\n}\n// Keep a reference to the real timeout functions so they can be used when overridden\nconst NATIVE_SET_TIMEOUT = globalThis.setTimeout;\nconst NATIVE_CLEAR_TIMEOUT = globalThis.clearTimeout;\nexport function installTimerFunctions(obj, opts) {\n    if (opts.useNativeTimers) {\n        obj.setTimeoutFn = NATIVE_SET_TIMEOUT.bind(globalThis);\n        obj.clearTimeoutFn = NATIVE_CLEAR_TIMEOUT.bind(globalThis);\n    }\n    else {\n        obj.setTimeoutFn = globalThis.setTimeout.bind(globalThis);\n        obj.clearTimeoutFn = globalThis.clearTimeout.bind(globalThis);\n    }\n}\n// base64 encoded buffers are about 33% bigger (https://en.wikipedia.org/wiki/Base64)\nconst BASE64_OVERHEAD = 1.33;\n// we could also have used `new Blob([obj]).size`, but it isn't supported in IE9\nexport function byteLength(obj) {\n    if (typeof obj === \"string\") {\n        return utf8Length(obj);\n    }\n    // arraybuffer or blob\n    return Math.ceil((obj.byteLength || obj.size) * BASE64_OVERHEAD);\n}\nfunction utf8Length(str) {\n    let c = 0, length = 0;\n    for (let i = 0, l = str.length; i < l; i++) {\n        c = str.charCodeAt(i);\n        if (c < 0x80) {\n            length += 1;\n        }\n        else if (c < 0x800) {\n            length += 2;\n        }\n        else if (c < 0xd800 || c >= 0xe000) {\n            length += 3;\n        }\n        else {\n            i++;\n            length += 4;\n        }\n    }\n    return length;\n}\n", "// imported from https://github.com/galkn/querystring\n/**\n * Compiles a querystring\n * Returns string representation of the object\n *\n * @param {Object}\n * @api private\n */\nexport function encode(obj) {\n    let str = '';\n    for (let i in obj) {\n        if (obj.hasOwnProperty(i)) {\n            if (str.length)\n                str += '&';\n            str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);\n        }\n    }\n    return str;\n}\n/**\n * Parses a simple querystring into an object\n *\n * @param {String} qs\n * @api private\n */\nexport function decode(qs) {\n    let qry = {};\n    let pairs = qs.split('&');\n    for (let i = 0, l = pairs.length; i < l; i++) {\n        let pair = pairs[i].split('=');\n        qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);\n    }\n    return qry;\n}\n", "import { decodePacket } from \"engine.io-parser\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions } from \"./util.js\";\nimport { encode } from \"./contrib/parseqs.js\";\nexport class TransportError extends Error {\n    constructor(reason, description, context) {\n        super(reason);\n        this.description = description;\n        this.context = context;\n        this.type = \"TransportError\";\n    }\n}\nexport class Transport extends Emitter {\n    /**\n     * Transport abstract constructor.\n     *\n     * @param {Object} opts - options\n     * @protected\n     */\n    constructor(opts) {\n        super();\n        this.writable = false;\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.query = opts.query;\n        this.socket = opts.socket;\n    }\n    /**\n     * Emits an error.\n     *\n     * @param {String} reason\n     * @param description\n     * @param context - the error context\n     * @return {Transport} for chaining\n     * @protected\n     */\n    onError(reason, description, context) {\n        super.emitReserved(\"error\", new TransportError(reason, description, context));\n        return this;\n    }\n    /**\n     * Opens the transport.\n     */\n    open() {\n        this.readyState = \"opening\";\n        this.doOpen();\n        return this;\n    }\n    /**\n     * Closes the transport.\n     */\n    close() {\n        if (this.readyState === \"opening\" || this.readyState === \"open\") {\n            this.doClose();\n            this.onClose();\n        }\n        return this;\n    }\n    /**\n     * Sends multiple packets.\n     *\n     * @param {Array} packets\n     */\n    send(packets) {\n        if (this.readyState === \"open\") {\n            this.write(packets);\n        }\n        else {\n            // this might happen if the transport was silently closed in the beforeunload event handler\n        }\n    }\n    /**\n     * Called upon open\n     *\n     * @protected\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        this.writable = true;\n        super.emitReserved(\"open\");\n    }\n    /**\n     * Called with data.\n     *\n     * @param {String} data\n     * @protected\n     */\n    onData(data) {\n        const packet = decodePacket(data, this.socket.binaryType);\n        this.onPacket(packet);\n    }\n    /**\n     * Called with a decoded packet.\n     *\n     * @protected\n     */\n    onPacket(packet) {\n        super.emitReserved(\"packet\", packet);\n    }\n    /**\n     * Called upon close.\n     *\n     * @protected\n     */\n    onClose(details) {\n        this.readyState = \"closed\";\n        super.emitReserved(\"close\", details);\n    }\n    /**\n     * Pauses the transport, in order not to lose packets during an upgrade.\n     *\n     * @param onPause\n     */\n    pause(onPause) { }\n    createUri(schema, query = {}) {\n        return (schema +\n            \"://\" +\n            this._hostname() +\n            this._port() +\n            this.opts.path +\n            this._query(query));\n    }\n    _hostname() {\n        const hostname = this.opts.hostname;\n        return hostname.indexOf(\":\") === -1 ? hostname : \"[\" + hostname + \"]\";\n    }\n    _port() {\n        if (this.opts.port &&\n            ((this.opts.secure && Number(this.opts.port !== 443)) ||\n                (!this.opts.secure && Number(this.opts.port) !== 80))) {\n            return \":\" + this.opts.port;\n        }\n        else {\n            return \"\";\n        }\n    }\n    _query(query) {\n        const encodedQuery = encode(query);\n        return encodedQuery.length ? \"?\" + encodedQuery : \"\";\n    }\n}\n", "// imported from https://github.com/unshiftio/yeast\n'use strict';\nconst alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split(''), length = 64, map = {};\nlet seed = 0, i = 0, prev;\n/**\n * Return a string representing the specified number.\n *\n * @param {Number} num The number to convert.\n * @returns {String} The string representation of the number.\n * @api public\n */\nexport function encode(num) {\n    let encoded = '';\n    do {\n        encoded = alphabet[num % length] + encoded;\n        num = Math.floor(num / length);\n    } while (num > 0);\n    return encoded;\n}\n/**\n * Return the integer value specified by the given string.\n *\n * @param {String} str The string to convert.\n * @returns {Number} The integer value represented by the string.\n * @api public\n */\nexport function decode(str) {\n    let decoded = 0;\n    for (i = 0; i < str.length; i++) {\n        decoded = decoded * length + map[str.charAt(i)];\n    }\n    return decoded;\n}\n/**\n * Yeast: A tiny growing id generator.\n *\n * @returns {String} A unique id.\n * @api public\n */\nexport function yeast() {\n    const now = encode(+new Date());\n    if (now !== prev)\n        return seed = 0, prev = now;\n    return now + '.' + encode(seed++);\n}\n//\n// Map each character to its index.\n//\nfor (; i < length; i++)\n    map[alphabet[i]] = i;\n", "// imported from https://github.com/component/has-cors\nlet value = false;\ntry {\n    value = typeof XMLHttpRequest !== 'undefined' &&\n        'withCredentials' in new XMLHttpRequest();\n}\ncatch (err) {\n    // if XMLHttp support is disabled in IE then it will throw\n    // when trying to create\n}\nexport const hasCORS = value;\n", "// browser shim for xmlhttprequest module\nimport { hasCORS } from \"../contrib/has-cors.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nexport function XHR(opts) {\n    const xdomain = opts.xdomain;\n    // XMLHttpRequest can be disabled on IE\n    try {\n        if (\"undefined\" !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {\n            return new XMLHttpRequest();\n        }\n    }\n    catch (e) { }\n    if (!xdomain) {\n        try {\n            return new globalThis[[\"Active\"].concat(\"Object\").join(\"X\")](\"Microsoft.XMLHTTP\");\n        }\n        catch (e) { }\n    }\n}\nexport function createCookieJar() { }\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { encodePayload, decodePayload } from \"engine.io-parser\";\nimport { createCookieJar, XHR as XMLHttpRequest, } from \"./xmlhttprequest.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions, pick } from \"../util.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nfunction empty() { }\nconst hasXHR2 = (function () {\n    const xhr = new XMLHttpRequest({\n        xdomain: false,\n    });\n    return null != xhr.responseType;\n})();\nexport class Polling extends Transport {\n    /**\n     * XHR Polling constructor.\n     *\n     * @param {Object} opts\n     * @package\n     */\n    constructor(opts) {\n        super(opts);\n        this.polling = false;\n        if (typeof location !== \"undefined\") {\n            const isSSL = \"https:\" === location.protocol;\n            let port = location.port;\n            // some user agents have empty `location.port`\n            if (!port) {\n                port = isSSL ? \"443\" : \"80\";\n            }\n            this.xd =\n                (typeof location !== \"undefined\" &&\n                    opts.hostname !== location.hostname) ||\n                    port !== opts.port;\n        }\n        /**\n         * XHR supports binary\n         */\n        const forceBase64 = opts && opts.forceBase64;\n        this.supportsBinary = hasXHR2 && !forceBase64;\n        if (this.opts.withCredentials) {\n            this.cookieJar = createCookieJar();\n        }\n    }\n    get name() {\n        return \"polling\";\n    }\n    /**\n     * Opens the socket (triggers polling). We write a PING message to determine\n     * when the transport is open.\n     *\n     * @protected\n     */\n    doOpen() {\n        this.poll();\n    }\n    /**\n     * Pauses polling.\n     *\n     * @param {Function} onPause - callback upon buffers are flushed and transport is paused\n     * @package\n     */\n    pause(onPause) {\n        this.readyState = \"pausing\";\n        const pause = () => {\n            this.readyState = \"paused\";\n            onPause();\n        };\n        if (this.polling || !this.writable) {\n            let total = 0;\n            if (this.polling) {\n                total++;\n                this.once(\"pollComplete\", function () {\n                    --total || pause();\n                });\n            }\n            if (!this.writable) {\n                total++;\n                this.once(\"drain\", function () {\n                    --total || pause();\n                });\n            }\n        }\n        else {\n            pause();\n        }\n    }\n    /**\n     * Starts polling cycle.\n     *\n     * @private\n     */\n    poll() {\n        this.polling = true;\n        this.doPoll();\n        this.emitReserved(\"poll\");\n    }\n    /**\n     * Overloads onData to detect payloads.\n     *\n     * @protected\n     */\n    onData(data) {\n        const callback = (packet) => {\n            // if its the first message we consider the transport open\n            if (\"opening\" === this.readyState && packet.type === \"open\") {\n                this.onOpen();\n            }\n            // if its a close packet, we close the ongoing requests\n            if (\"close\" === packet.type) {\n                this.onClose({ description: \"transport closed by the server\" });\n                return false;\n            }\n            // otherwise bypass onData and handle the message\n            this.onPacket(packet);\n        };\n        // decode payload\n        decodePayload(data, this.socket.binaryType).forEach(callback);\n        // if an event did not trigger closing\n        if (\"closed\" !== this.readyState) {\n            // if we got data we're not polling\n            this.polling = false;\n            this.emitReserved(\"pollComplete\");\n            if (\"open\" === this.readyState) {\n                this.poll();\n            }\n            else {\n            }\n        }\n    }\n    /**\n     * For polling, send a close packet.\n     *\n     * @protected\n     */\n    doClose() {\n        const close = () => {\n            this.write([{ type: \"close\" }]);\n        };\n        if (\"open\" === this.readyState) {\n            close();\n        }\n        else {\n            // in case we're trying to close while\n            // handshaking is in progress (GH-164)\n            this.once(\"open\", close);\n        }\n    }\n    /**\n     * Writes a packets payload.\n     *\n     * @param {Array} packets - data packets\n     * @protected\n     */\n    write(packets) {\n        this.writable = false;\n        encodePayload(packets, (data) => {\n            this.doWrite(data, () => {\n                this.writable = true;\n                this.emitReserved(\"drain\");\n            });\n        });\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"https\" : \"http\";\n        const query = this.query || {};\n        // cache busting is forced\n        if (false !== this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        if (!this.supportsBinary && !query.sid) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Creates a request.\n     *\n     * @param {String} method\n     * @private\n     */\n    request(opts = {}) {\n        Object.assign(opts, { xd: this.xd, cookieJar: this.cookieJar }, this.opts);\n        return new Request(this.uri(), opts);\n    }\n    /**\n     * Sends data.\n     *\n     * @param {String} data to send.\n     * @param {Function} called upon flush.\n     * @private\n     */\n    doWrite(data, fn) {\n        const req = this.request({\n            method: \"POST\",\n            data: data,\n        });\n        req.on(\"success\", fn);\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr post error\", xhrStatus, context);\n        });\n    }\n    /**\n     * Starts a poll cycle.\n     *\n     * @private\n     */\n    doPoll() {\n        const req = this.request();\n        req.on(\"data\", this.onData.bind(this));\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr poll error\", xhrStatus, context);\n        });\n        this.pollXhr = req;\n    }\n}\nexport class Request extends Emitter {\n    /**\n     * Request constructor\n     *\n     * @param {Object} options\n     * @package\n     */\n    constructor(uri, opts) {\n        super();\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.method = opts.method || \"GET\";\n        this.uri = uri;\n        this.data = undefined !== opts.data ? opts.data : null;\n        this.create();\n    }\n    /**\n     * Creates the XHR object and sends the request.\n     *\n     * @private\n     */\n    create() {\n        var _a;\n        const opts = pick(this.opts, \"agent\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"autoUnref\");\n        opts.xdomain = !!this.opts.xd;\n        const xhr = (this.xhr = new XMLHttpRequest(opts));\n        try {\n            xhr.open(this.method, this.uri, true);\n            try {\n                if (this.opts.extraHeaders) {\n                    xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);\n                    for (let i in this.opts.extraHeaders) {\n                        if (this.opts.extraHeaders.hasOwnProperty(i)) {\n                            xhr.setRequestHeader(i, this.opts.extraHeaders[i]);\n                        }\n                    }\n                }\n            }\n            catch (e) { }\n            if (\"POST\" === this.method) {\n                try {\n                    xhr.setRequestHeader(\"Content-type\", \"text/plain;charset=UTF-8\");\n                }\n                catch (e) { }\n            }\n            try {\n                xhr.setRequestHeader(\"Accept\", \"*/*\");\n            }\n            catch (e) { }\n            (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.addCookies(xhr);\n            // ie6 check\n            if (\"withCredentials\" in xhr) {\n                xhr.withCredentials = this.opts.withCredentials;\n            }\n            if (this.opts.requestTimeout) {\n                xhr.timeout = this.opts.requestTimeout;\n            }\n            xhr.onreadystatechange = () => {\n                var _a;\n                if (xhr.readyState === 3) {\n                    (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.parseCookies(xhr);\n                }\n                if (4 !== xhr.readyState)\n                    return;\n                if (200 === xhr.status || 1223 === xhr.status) {\n                    this.onLoad();\n                }\n                else {\n                    // make sure the `error` event handler that's user-set\n                    // does not throw in the same tick and gets caught here\n                    this.setTimeoutFn(() => {\n                        this.onError(typeof xhr.status === \"number\" ? xhr.status : 0);\n                    }, 0);\n                }\n            };\n            xhr.send(this.data);\n        }\n        catch (e) {\n            // Need to defer since .create() is called directly from the constructor\n            // and thus the 'error' event can only be only bound *after* this exception\n            // occurs.  Therefore, also, we cannot throw here at all.\n            this.setTimeoutFn(() => {\n                this.onError(e);\n            }, 0);\n            return;\n        }\n        if (typeof document !== \"undefined\") {\n            this.index = Request.requestsCount++;\n            Request.requests[this.index] = this;\n        }\n    }\n    /**\n     * Called upon error.\n     *\n     * @private\n     */\n    onError(err) {\n        this.emitReserved(\"error\", err, this.xhr);\n        this.cleanup(true);\n    }\n    /**\n     * Cleans up house.\n     *\n     * @private\n     */\n    cleanup(fromError) {\n        if (\"undefined\" === typeof this.xhr || null === this.xhr) {\n            return;\n        }\n        this.xhr.onreadystatechange = empty;\n        if (fromError) {\n            try {\n                this.xhr.abort();\n            }\n            catch (e) { }\n        }\n        if (typeof document !== \"undefined\") {\n            delete Request.requests[this.index];\n        }\n        this.xhr = null;\n    }\n    /**\n     * Called upon load.\n     *\n     * @private\n     */\n    onLoad() {\n        const data = this.xhr.responseText;\n        if (data !== null) {\n            this.emitReserved(\"data\", data);\n            this.emitReserved(\"success\");\n            this.cleanup();\n        }\n    }\n    /**\n     * Aborts the request.\n     *\n     * @package\n     */\n    abort() {\n        this.cleanup();\n    }\n}\nRequest.requestsCount = 0;\nRequest.requests = {};\n/**\n * Aborts pending requests when unloading the window. This is needed to prevent\n * memory leaks (e.g. when using IE) and to ensure that no spurious error is\n * emitted.\n */\nif (typeof document !== \"undefined\") {\n    // @ts-ignore\n    if (typeof attachEvent === \"function\") {\n        // @ts-ignore\n        attachEvent(\"onunload\", unloadHandler);\n    }\n    else if (typeof addEventListener === \"function\") {\n        const terminationEvent = \"onpagehide\" in globalThis ? \"pagehide\" : \"unload\";\n        addEventListener(terminationEvent, unloadHandler, false);\n    }\n}\nfunction unloadHandler() {\n    for (let i in Request.requests) {\n        if (Request.requests.hasOwnProperty(i)) {\n            Request.requests[i].abort();\n        }\n    }\n}\n", "import { globalThisShim as globalThis } from \"../globalThis.js\";\nexport const nextTick = (() => {\n    const isPromiseAvailable = typeof Promise === \"function\" && typeof Promise.resolve === \"function\";\n    if (isPromiseAvailable) {\n        return (cb) => Promise.resolve().then(cb);\n    }\n    else {\n        return (cb, setTimeoutFn) => setTimeoutFn(cb, 0);\n    }\n})();\nexport const WebSocket = globalThis.WebSocket || globalThis.MozWebSocket;\nexport const usingBrowserWebSocket = true;\nexport const defaultBinaryType = \"arraybuffer\";\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { pick } from \"../util.js\";\nimport { nextTick, usingBrowserWebSocket, WebSocket, } from \"./websocket-constructor.js\";\nimport { encodePacket } from \"engine.io-parser\";\n// detect ReactNative environment\nconst isReactNative = typeof navigator !== \"undefined\" &&\n    typeof navigator.product === \"string\" &&\n    navigator.product.toLowerCase() === \"reactnative\";\nexport class WS extends Transport {\n    /**\n     * WebSocket transport constructor.\n     *\n     * @param {Object} opts - connection options\n     * @protected\n     */\n    constructor(opts) {\n        super(opts);\n        this.supportsBinary = !opts.forceBase64;\n    }\n    get name() {\n        return \"websocket\";\n    }\n    doOpen() {\n        if (!this.check()) {\n            // let probe timeout\n            return;\n        }\n        const uri = this.uri();\n        const protocols = this.opts.protocols;\n        // React Native only supports the 'headers' option, and will print a warning if anything else is passed\n        const opts = isReactNative\n            ? {}\n            : pick(this.opts, \"agent\", \"perMessageDeflate\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"localAddress\", \"protocolVersion\", \"origin\", \"maxPayload\", \"family\", \"checkServerIdentity\");\n        if (this.opts.extraHeaders) {\n            opts.headers = this.opts.extraHeaders;\n        }\n        try {\n            this.ws =\n                usingBrowserWebSocket && !isReactNative\n                    ? protocols\n                        ? new WebSocket(uri, protocols)\n                        : new WebSocket(uri)\n                    : new WebSocket(uri, protocols, opts);\n        }\n        catch (err) {\n            return this.emitReserved(\"error\", err);\n        }\n        this.ws.binaryType = this.socket.binaryType;\n        this.addEventListeners();\n    }\n    /**\n     * Adds event listeners to the socket\n     *\n     * @private\n     */\n    addEventListeners() {\n        this.ws.onopen = () => {\n            if (this.opts.autoUnref) {\n                this.ws._socket.unref();\n            }\n            this.onOpen();\n        };\n        this.ws.onclose = (closeEvent) => this.onClose({\n            description: \"websocket connection closed\",\n            context: closeEvent,\n        });\n        this.ws.onmessage = (ev) => this.onData(ev.data);\n        this.ws.onerror = (e) => this.onError(\"websocket error\", e);\n    }\n    write(packets) {\n        this.writable = false;\n        // encodePacket efficient as it uses WS framing\n        // no need for encodePayload\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            encodePacket(packet, this.supportsBinary, (data) => {\n                // always create a new object (GH-437)\n                const opts = {};\n                if (!usingBrowserWebSocket) {\n                    if (packet.options) {\n                        opts.compress = packet.options.compress;\n                    }\n                    if (this.opts.perMessageDeflate) {\n                        const len = \n                        // @ts-ignore\n                        \"string\" === typeof data ? Buffer.byteLength(data) : data.length;\n                        if (len < this.opts.perMessageDeflate.threshold) {\n                            opts.compress = false;\n                        }\n                    }\n                }\n                // Sometimes the websocket has already been closed but the browser didn't\n                // have a chance of informing us about it yet, in that case send will\n                // throw an error\n                try {\n                    if (usingBrowserWebSocket) {\n                        // TypeError is thrown when passing the second argument on Safari\n                        this.ws.send(data);\n                    }\n                    else {\n                        this.ws.send(data, opts);\n                    }\n                }\n                catch (e) {\n                }\n                if (lastPacket) {\n                    // fake drain\n                    // defer to next tick to allow Socket to clear writeBuffer\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        if (typeof this.ws !== \"undefined\") {\n            this.ws.close();\n            this.ws = null;\n        }\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"wss\" : \"ws\";\n        const query = this.query || {};\n        // append timestamp to URI\n        if (this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        // communicate binary support capabilities\n        if (!this.supportsBinary) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Feature detection for WebSocket.\n     *\n     * @return {Boolean} whether this transport is available.\n     * @private\n     */\n    check() {\n        return !!WebSocket;\n    }\n}\n", "import { Transport } from \"../transport.js\";\nimport { nextTick } from \"./websocket-constructor.js\";\nimport { createPacketDecoderStream, createPacketEncoderStream, } from \"engine.io-parser\";\nexport class WT extends Transport {\n    get name() {\n        return \"webtransport\";\n    }\n    doOpen() {\n        // @ts-ignore\n        if (typeof WebTransport !== \"function\") {\n            return;\n        }\n        // @ts-ignore\n        this.transport = new WebTransport(this.createUri(\"https\"), this.opts.transportOptions[this.name]);\n        this.transport.closed\n            .then(() => {\n            this.onClose();\n        })\n            .catch((err) => {\n            this.onError(\"webtransport error\", err);\n        });\n        // note: we could have used async/await, but that would require some additional polyfills\n        this.transport.ready.then(() => {\n            this.transport.createBidirectionalStream().then((stream) => {\n                const decoderStream = createPacketDecoderStream(Number.MAX_SAFE_INTEGER, this.socket.binaryType);\n                const reader = stream.readable.pipeThrough(decoderStream).getReader();\n                const encoderStream = createPacketEncoderStream();\n                encoderStream.readable.pipeTo(stream.writable);\n                this.writer = encoderStream.writable.getWriter();\n                const read = () => {\n                    reader\n                        .read()\n                        .then(({ done, value }) => {\n                        if (done) {\n                            return;\n                        }\n                        this.onPacket(value);\n                        read();\n                    })\n                        .catch((err) => {\n                    });\n                };\n                read();\n                const packet = { type: \"open\" };\n                if (this.query.sid) {\n                    packet.data = `{\"sid\":\"${this.query.sid}\"}`;\n                }\n                this.writer.write(packet).then(() => this.onOpen());\n            });\n        });\n    }\n    write(packets) {\n        this.writable = false;\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            this.writer.write(packet).then(() => {\n                if (lastPacket) {\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        var _a;\n        (_a = this.transport) === null || _a === void 0 ? void 0 : _a.close();\n    }\n}\n", "import { Polling } from \"./polling.js\";\nimport { WS } from \"./websocket.js\";\nimport { WT } from \"./webtransport.js\";\nexport const transports = {\n    websocket: WS,\n    webtransport: WT,\n    polling: Polling,\n};\n", "// imported from https://github.com/galkn/parseuri\n/**\n * Parses a URI\n *\n * Note: we could also have used the built-in URL object, but it isn't supported on all platforms.\n *\n * See:\n * - https://developer.mozilla.org/en-US/docs/Web/API/URL\n * - https://caniuse.com/url\n * - https://www.rfc-editor.org/rfc/rfc3986#appendix-B\n *\n * History of the parse() method:\n * - first commit: https://github.com/socketio/socket.io-client/commit/4ee1d5d94b3906a9c052b459f1a818b15f38f91c\n * - export into its own module: https://github.com/socketio/engine.io-client/commit/de2c561e4564efeb78f1bdb1ba39ef81b2822cb3\n * - reimport: https://github.com/socketio/engine.io-client/commit/df32277c3f6d622eec5ed09f493cae3f3391d242\n *\n * @author Steven Levithan <stevenlevithan.com> (MIT license)\n * @api private\n */\nconst re = /^(?:(?![^:@\\/?#]+:[^:@\\/]*@)(http|https|ws|wss):\\/\\/)?((?:(([^:@\\/?#]*)(?::([^:@\\/?#]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\\/?#]*)(?::(\\d*))?)(((\\/(?:[^?#](?![^?#\\/]*\\.[^?#\\/.]+(?:[?#]|$)))*\\/?)?([^?#\\/]*))(?:\\?([^#]*))?(?:#(.*))?)/;\nconst parts = [\n    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'\n];\nexport function parse(str) {\n    if (str.length > 2000) {\n        throw \"URI too long\";\n    }\n    const src = str, b = str.indexOf('['), e = str.indexOf(']');\n    if (b != -1 && e != -1) {\n        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);\n    }\n    let m = re.exec(str || ''), uri = {}, i = 14;\n    while (i--) {\n        uri[parts[i]] = m[i] || '';\n    }\n    if (b != -1 && e != -1) {\n        uri.source = src;\n        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');\n        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');\n        uri.ipv6uri = true;\n    }\n    uri.pathNames = pathNames(uri, uri['path']);\n    uri.queryKey = queryKey(uri, uri['query']);\n    return uri;\n}\nfunction pathNames(obj, path) {\n    const regx = /\\/{2,9}/g, names = path.replace(regx, \"/\").split(\"/\");\n    if (path.slice(0, 1) == '/' || path.length === 0) {\n        names.splice(0, 1);\n    }\n    if (path.slice(-1) == '/') {\n        names.splice(names.length - 1, 1);\n    }\n    return names;\n}\nfunction queryKey(uri, query) {\n    const data = {};\n    query.replace(/(?:^|&)([^&=]*)=?([^&]*)/g, function ($0, $1, $2) {\n        if ($1) {\n            data[$1] = $2;\n        }\n    });\n    return data;\n}\n", "import { transports } from \"./transports/index.js\";\nimport { installTimerFunctions, byteLength } from \"./util.js\";\nimport { decode } from \"./contrib/parseqs.js\";\nimport { parse } from \"./contrib/parseuri.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { protocol } from \"engine.io-parser\";\nimport { defaultBinaryType } from \"./transports/websocket-constructor.js\";\nexport class Socket extends Emitter {\n    /**\n     * Socket constructor.\n     *\n     * @param {String|Object} uri - uri or options\n     * @param {Object} opts - options\n     */\n    constructor(uri, opts = {}) {\n        super();\n        this.binaryType = defaultBinaryType;\n        this.writeBuffer = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = null;\n        }\n        if (uri) {\n            uri = parse(uri);\n            opts.hostname = uri.host;\n            opts.secure = uri.protocol === \"https\" || uri.protocol === \"wss\";\n            opts.port = uri.port;\n            if (uri.query)\n                opts.query = uri.query;\n        }\n        else if (opts.host) {\n            opts.hostname = parse(opts.host).host;\n        }\n        installTimerFunctions(this, opts);\n        this.secure =\n            null != opts.secure\n                ? opts.secure\n                : typeof location !== \"undefined\" && \"https:\" === location.protocol;\n        if (opts.hostname && !opts.port) {\n            // if no port is specified manually, use the protocol default\n            opts.port = this.secure ? \"443\" : \"80\";\n        }\n        this.hostname =\n            opts.hostname ||\n                (typeof location !== \"undefined\" ? location.hostname : \"localhost\");\n        this.port =\n            opts.port ||\n                (typeof location !== \"undefined\" && location.port\n                    ? location.port\n                    : this.secure\n                        ? \"443\"\n                        : \"80\");\n        this.transports = opts.transports || [\n            \"polling\",\n            \"websocket\",\n            \"webtransport\",\n        ];\n        this.writeBuffer = [];\n        this.prevBufferLen = 0;\n        this.opts = Object.assign({\n            path: \"/engine.io\",\n            agent: false,\n            withCredentials: false,\n            upgrade: true,\n            timestampParam: \"t\",\n            rememberUpgrade: false,\n            addTrailingSlash: true,\n            rejectUnauthorized: true,\n            perMessageDeflate: {\n                threshold: 1024,\n            },\n            transportOptions: {},\n            closeOnBeforeunload: false,\n        }, opts);\n        this.opts.path =\n            this.opts.path.replace(/\\/$/, \"\") +\n                (this.opts.addTrailingSlash ? \"/\" : \"\");\n        if (typeof this.opts.query === \"string\") {\n            this.opts.query = decode(this.opts.query);\n        }\n        // set on handshake\n        this.id = null;\n        this.upgrades = null;\n        this.pingInterval = null;\n        this.pingTimeout = null;\n        // set on heartbeat\n        this.pingTimeoutTimer = null;\n        if (typeof addEventListener === \"function\") {\n            if (this.opts.closeOnBeforeunload) {\n                // Firefox closes the connection when the \"beforeunload\" event is emitted but not Chrome. This event listener\n                // ensures every browser behaves the same (no \"disconnect\" event at the Socket.IO level when the page is\n                // closed/reloaded)\n                this.beforeunloadEventListener = () => {\n                    if (this.transport) {\n                        // silently close the transport\n                        this.transport.removeAllListeners();\n                        this.transport.close();\n                    }\n                };\n                addEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n            }\n            if (this.hostname !== \"localhost\") {\n                this.offlineEventListener = () => {\n                    this.onClose(\"transport close\", {\n                        description: \"network connection lost\",\n                    });\n                };\n                addEventListener(\"offline\", this.offlineEventListener, false);\n            }\n        }\n        this.open();\n    }\n    /**\n     * Creates transport of the given type.\n     *\n     * @param {String} name - transport name\n     * @return {Transport}\n     * @private\n     */\n    createTransport(name) {\n        const query = Object.assign({}, this.opts.query);\n        // append engine.io protocol identifier\n        query.EIO = protocol;\n        // transport name\n        query.transport = name;\n        // session id if we already have one\n        if (this.id)\n            query.sid = this.id;\n        const opts = Object.assign({}, this.opts, {\n            query,\n            socket: this,\n            hostname: this.hostname,\n            secure: this.secure,\n            port: this.port,\n        }, this.opts.transportOptions[name]);\n        return new transports[name](opts);\n    }\n    /**\n     * Initializes transport to use and starts probe.\n     *\n     * @private\n     */\n    open() {\n        let transport;\n        if (this.opts.rememberUpgrade &&\n            Socket.priorWebsocketSuccess &&\n            this.transports.indexOf(\"websocket\") !== -1) {\n            transport = \"websocket\";\n        }\n        else if (0 === this.transports.length) {\n            // Emit error on next tick so it can be listened to\n            this.setTimeoutFn(() => {\n                this.emitReserved(\"error\", \"No transports available\");\n            }, 0);\n            return;\n        }\n        else {\n            transport = this.transports[0];\n        }\n        this.readyState = \"opening\";\n        // Retry with the next transport if the transport is disabled (jsonp: false)\n        try {\n            transport = this.createTransport(transport);\n        }\n        catch (e) {\n            this.transports.shift();\n            this.open();\n            return;\n        }\n        transport.open();\n        this.setTransport(transport);\n    }\n    /**\n     * Sets the current transport. Disables the existing one (if any).\n     *\n     * @private\n     */\n    setTransport(transport) {\n        if (this.transport) {\n            this.transport.removeAllListeners();\n        }\n        // set up transport\n        this.transport = transport;\n        // set up transport listeners\n        transport\n            .on(\"drain\", this.onDrain.bind(this))\n            .on(\"packet\", this.onPacket.bind(this))\n            .on(\"error\", this.onError.bind(this))\n            .on(\"close\", (reason) => this.onClose(\"transport close\", reason));\n    }\n    /**\n     * Probes a transport.\n     *\n     * @param {String} name - transport name\n     * @private\n     */\n    probe(name) {\n        let transport = this.createTransport(name);\n        let failed = false;\n        Socket.priorWebsocketSuccess = false;\n        const onTransportOpen = () => {\n            if (failed)\n                return;\n            transport.send([{ type: \"ping\", data: \"probe\" }]);\n            transport.once(\"packet\", (msg) => {\n                if (failed)\n                    return;\n                if (\"pong\" === msg.type && \"probe\" === msg.data) {\n                    this.upgrading = true;\n                    this.emitReserved(\"upgrading\", transport);\n                    if (!transport)\n                        return;\n                    Socket.priorWebsocketSuccess = \"websocket\" === transport.name;\n                    this.transport.pause(() => {\n                        if (failed)\n                            return;\n                        if (\"closed\" === this.readyState)\n                            return;\n                        cleanup();\n                        this.setTransport(transport);\n                        transport.send([{ type: \"upgrade\" }]);\n                        this.emitReserved(\"upgrade\", transport);\n                        transport = null;\n                        this.upgrading = false;\n                        this.flush();\n                    });\n                }\n                else {\n                    const err = new Error(\"probe error\");\n                    // @ts-ignore\n                    err.transport = transport.name;\n                    this.emitReserved(\"upgradeError\", err);\n                }\n            });\n        };\n        function freezeTransport() {\n            if (failed)\n                return;\n            // Any callback called by transport should be ignored since now\n            failed = true;\n            cleanup();\n            transport.close();\n            transport = null;\n        }\n        // Handle any error that happens while probing\n        const onerror = (err) => {\n            const error = new Error(\"probe error: \" + err);\n            // @ts-ignore\n            error.transport = transport.name;\n            freezeTransport();\n            this.emitReserved(\"upgradeError\", error);\n        };\n        function onTransportClose() {\n            onerror(\"transport closed\");\n        }\n        // When the socket is closed while we're probing\n        function onclose() {\n            onerror(\"socket closed\");\n        }\n        // When the socket is upgraded while we're probing\n        function onupgrade(to) {\n            if (transport && to.name !== transport.name) {\n                freezeTransport();\n            }\n        }\n        // Remove all listeners on the transport and on self\n        const cleanup = () => {\n            transport.removeListener(\"open\", onTransportOpen);\n            transport.removeListener(\"error\", onerror);\n            transport.removeListener(\"close\", onTransportClose);\n            this.off(\"close\", onclose);\n            this.off(\"upgrading\", onupgrade);\n        };\n        transport.once(\"open\", onTransportOpen);\n        transport.once(\"error\", onerror);\n        transport.once(\"close\", onTransportClose);\n        this.once(\"close\", onclose);\n        this.once(\"upgrading\", onupgrade);\n        if (this.upgrades.indexOf(\"webtransport\") !== -1 &&\n            name !== \"webtransport\") {\n            // favor WebTransport\n            this.setTimeoutFn(() => {\n                if (!failed) {\n                    transport.open();\n                }\n            }, 200);\n        }\n        else {\n            transport.open();\n        }\n    }\n    /**\n     * Called when connection is deemed open.\n     *\n     * @private\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        Socket.priorWebsocketSuccess = \"websocket\" === this.transport.name;\n        this.emitReserved(\"open\");\n        this.flush();\n        // we check for `readyState` in case an `open`\n        // listener already closed the socket\n        if (\"open\" === this.readyState && this.opts.upgrade) {\n            let i = 0;\n            const l = this.upgrades.length;\n            for (; i < l; i++) {\n                this.probe(this.upgrades[i]);\n            }\n        }\n    }\n    /**\n     * Handles a packet.\n     *\n     * @private\n     */\n    onPacket(packet) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            this.emitReserved(\"packet\", packet);\n            // Socket is live - any packet counts\n            this.emitReserved(\"heartbeat\");\n            this.resetPingTimeout();\n            switch (packet.type) {\n                case \"open\":\n                    this.onHandshake(JSON.parse(packet.data));\n                    break;\n                case \"ping\":\n                    this.sendPacket(\"pong\");\n                    this.emitReserved(\"ping\");\n                    this.emitReserved(\"pong\");\n                    break;\n                case \"error\":\n                    const err = new Error(\"server error\");\n                    // @ts-ignore\n                    err.code = packet.data;\n                    this.onError(err);\n                    break;\n                case \"message\":\n                    this.emitReserved(\"data\", packet.data);\n                    this.emitReserved(\"message\", packet.data);\n                    break;\n            }\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon handshake completion.\n     *\n     * @param {Object} data - handshake obj\n     * @private\n     */\n    onHandshake(data) {\n        this.emitReserved(\"handshake\", data);\n        this.id = data.sid;\n        this.transport.query.sid = data.sid;\n        this.upgrades = this.filterUpgrades(data.upgrades);\n        this.pingInterval = data.pingInterval;\n        this.pingTimeout = data.pingTimeout;\n        this.maxPayload = data.maxPayload;\n        this.onOpen();\n        // In case open handler closes socket\n        if (\"closed\" === this.readyState)\n            return;\n        this.resetPingTimeout();\n    }\n    /**\n     * Sets and resets ping timeout timer based on server pings.\n     *\n     * @private\n     */\n    resetPingTimeout() {\n        this.clearTimeoutFn(this.pingTimeoutTimer);\n        this.pingTimeoutTimer = this.setTimeoutFn(() => {\n            this.onClose(\"ping timeout\");\n        }, this.pingInterval + this.pingTimeout);\n        if (this.opts.autoUnref) {\n            this.pingTimeoutTimer.unref();\n        }\n    }\n    /**\n     * Called on `drain` event\n     *\n     * @private\n     */\n    onDrain() {\n        this.writeBuffer.splice(0, this.prevBufferLen);\n        // setting prevBufferLen = 0 is very important\n        // for example, when upgrading, upgrade packet is sent over,\n        // and a nonzero prevBufferLen could cause problems on `drain`\n        this.prevBufferLen = 0;\n        if (0 === this.writeBuffer.length) {\n            this.emitReserved(\"drain\");\n        }\n        else {\n            this.flush();\n        }\n    }\n    /**\n     * Flush write buffers.\n     *\n     * @private\n     */\n    flush() {\n        if (\"closed\" !== this.readyState &&\n            this.transport.writable &&\n            !this.upgrading &&\n            this.writeBuffer.length) {\n            const packets = this.getWritablePackets();\n            this.transport.send(packets);\n            // keep track of current length of writeBuffer\n            // splice writeBuffer and callbackBuffer on `drain`\n            this.prevBufferLen = packets.length;\n            this.emitReserved(\"flush\");\n        }\n    }\n    /**\n     * Ensure the encoded size of the writeBuffer is below the maxPayload value sent by the server (only for HTTP\n     * long-polling)\n     *\n     * @private\n     */\n    getWritablePackets() {\n        const shouldCheckPayloadSize = this.maxPayload &&\n            this.transport.name === \"polling\" &&\n            this.writeBuffer.length > 1;\n        if (!shouldCheckPayloadSize) {\n            return this.writeBuffer;\n        }\n        let payloadSize = 1; // first packet type\n        for (let i = 0; i < this.writeBuffer.length; i++) {\n            const data = this.writeBuffer[i].data;\n            if (data) {\n                payloadSize += byteLength(data);\n            }\n            if (i > 0 && payloadSize > this.maxPayload) {\n                return this.writeBuffer.slice(0, i);\n            }\n            payloadSize += 2; // separator + packet type\n        }\n        return this.writeBuffer;\n    }\n    /**\n     * Sends a message.\n     *\n     * @param {String} msg - message.\n     * @param {Object} options.\n     * @param {Function} callback function.\n     * @return {Socket} for chaining.\n     */\n    write(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    send(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param {String} type: packet type.\n     * @param {String} data.\n     * @param {Object} options.\n     * @param {Function} fn - callback function.\n     * @private\n     */\n    sendPacket(type, data, options, fn) {\n        if (\"function\" === typeof data) {\n            fn = data;\n            data = undefined;\n        }\n        if (\"function\" === typeof options) {\n            fn = options;\n            options = null;\n        }\n        if (\"closing\" === this.readyState || \"closed\" === this.readyState) {\n            return;\n        }\n        options = options || {};\n        options.compress = false !== options.compress;\n        const packet = {\n            type: type,\n            data: data,\n            options: options,\n        };\n        this.emitReserved(\"packetCreate\", packet);\n        this.writeBuffer.push(packet);\n        if (fn)\n            this.once(\"flush\", fn);\n        this.flush();\n    }\n    /**\n     * Closes the connection.\n     */\n    close() {\n        const close = () => {\n            this.onClose(\"forced close\");\n            this.transport.close();\n        };\n        const cleanupAndClose = () => {\n            this.off(\"upgrade\", cleanupAndClose);\n            this.off(\"upgradeError\", cleanupAndClose);\n            close();\n        };\n        const waitForUpgrade = () => {\n            // wait for upgrade to finish since we can't send packets while pausing a transport\n            this.once(\"upgrade\", cleanupAndClose);\n            this.once(\"upgradeError\", cleanupAndClose);\n        };\n        if (\"opening\" === this.readyState || \"open\" === this.readyState) {\n            this.readyState = \"closing\";\n            if (this.writeBuffer.length) {\n                this.once(\"drain\", () => {\n                    if (this.upgrading) {\n                        waitForUpgrade();\n                    }\n                    else {\n                        close();\n                    }\n                });\n            }\n            else if (this.upgrading) {\n                waitForUpgrade();\n            }\n            else {\n                close();\n            }\n        }\n        return this;\n    }\n    /**\n     * Called upon transport error\n     *\n     * @private\n     */\n    onError(err) {\n        Socket.priorWebsocketSuccess = false;\n        this.emitReserved(\"error\", err);\n        this.onClose(\"transport error\", err);\n    }\n    /**\n     * Called upon transport close.\n     *\n     * @private\n     */\n    onClose(reason, description) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            // clear timers\n            this.clearTimeoutFn(this.pingTimeoutTimer);\n            // stop event from firing again for transport\n            this.transport.removeAllListeners(\"close\");\n            // ensure transport won't stay open\n            this.transport.close();\n            // ignore further transport communication\n            this.transport.removeAllListeners();\n            if (typeof removeEventListener === \"function\") {\n                removeEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n                removeEventListener(\"offline\", this.offlineEventListener, false);\n            }\n            // set ready state\n            this.readyState = \"closed\";\n            // clear session id\n            this.id = null;\n            // emit close event\n            this.emitReserved(\"close\", reason, description);\n            // clean buffers after, so users can still\n            // grab the buffers on `close` event\n            this.writeBuffer = [];\n            this.prevBufferLen = 0;\n        }\n    }\n    /**\n     * Filters upgrades, returning only those matching client transports.\n     *\n     * @param {Array} upgrades - server upgrades\n     * @private\n     */\n    filterUpgrades(upgrades) {\n        const filteredUpgrades = [];\n        let i = 0;\n        const j = upgrades.length;\n        for (; i < j; i++) {\n            if (~this.transports.indexOf(upgrades[i]))\n                filteredUpgrades.push(upgrades[i]);\n        }\n        return filteredUpgrades;\n    }\n}\nSocket.protocol = protocol;\n", "import { Socket } from \"./socket.js\";\nexport { Socket };\nexport const protocol = Socket.protocol;\nexport { Transport, TransportError } from \"./transport.js\";\nexport { transports } from \"./transports/index.js\";\nexport { installTimerFunctions } from \"./util.js\";\nexport { parse } from \"./contrib/parseuri.js\";\nexport { nextTick } from \"./transports/websocket-constructor.js\";\n", "import { parse } from \"engine.io-client\";\n/**\n * URL parser.\n *\n * @param uri - url\n * @param path - the request path of the connection\n * @param loc - An object meant to mimic window.location.\n *        Defaults to window.location.\n * @public\n */\nexport function url(uri, path = \"\", loc) {\n    let obj = uri;\n    // default to window.location\n    loc = loc || (typeof location !== \"undefined\" && location);\n    if (null == uri)\n        uri = loc.protocol + \"//\" + loc.host;\n    // relative path support\n    if (typeof uri === \"string\") {\n        if (\"/\" === uri.charAt(0)) {\n            if (\"/\" === uri.charAt(1)) {\n                uri = loc.protocol + uri;\n            }\n            else {\n                uri = loc.host + uri;\n            }\n        }\n        if (!/^(https?|wss?):\\/\\//.test(uri)) {\n            if (\"undefined\" !== typeof loc) {\n                uri = loc.protocol + \"//\" + uri;\n            }\n            else {\n                uri = \"https://\" + uri;\n            }\n        }\n        // parse\n        obj = parse(uri);\n    }\n    // make sure we treat `localhost:80` and `localhost` equally\n    if (!obj.port) {\n        if (/^(http|ws)$/.test(obj.protocol)) {\n            obj.port = \"80\";\n        }\n        else if (/^(http|ws)s$/.test(obj.protocol)) {\n            obj.port = \"443\";\n        }\n    }\n    obj.path = obj.path || \"/\";\n    const ipv6 = obj.host.indexOf(\":\") !== -1;\n    const host = ipv6 ? \"[\" + obj.host + \"]\" : obj.host;\n    // define unique id\n    obj.id = obj.protocol + \"://\" + host + \":\" + obj.port + path;\n    // define href\n    obj.href =\n        obj.protocol +\n            \"://\" +\n            host +\n            (loc && loc.port === obj.port ? \"\" : \":\" + obj.port);\n    return obj;\n}\n", "import { Emitter } from \"@socket.io/component-emitter\";\nimport { deconstructPacket, reconstructPacket } from \"./binary.js\";\nimport { isBinary, hasBinary } from \"./is-binary.js\";\n/**\n * These strings must not be used as event names, as they have a special meaning.\n */\nconst RESERVED_EVENTS = [\n    \"connect\",\n    \"connect_error\",\n    \"disconnect\",\n    \"disconnecting\",\n    \"newListener\",\n    \"removeListener\", // used by the Node.js EventEmitter\n];\n/**\n * Protocol version.\n *\n * @public\n */\nexport const protocol = 5;\nexport var PacketType;\n(function (PacketType) {\n    PacketType[PacketType[\"CONNECT\"] = 0] = \"CONNECT\";\n    PacketType[PacketType[\"DISCONNECT\"] = 1] = \"DISCONNECT\";\n    PacketType[PacketType[\"EVENT\"] = 2] = \"EVENT\";\n    PacketType[PacketType[\"ACK\"] = 3] = \"ACK\";\n    PacketType[PacketType[\"CONNECT_ERROR\"] = 4] = \"CONNECT_ERROR\";\n    PacketType[PacketType[\"BINARY_EVENT\"] = 5] = \"BINARY_EVENT\";\n    PacketType[PacketType[\"BINARY_ACK\"] = 6] = \"BINARY_ACK\";\n})(PacketType || (PacketType = {}));\n/**\n * A socket.io Encoder instance\n */\nexport class Encoder {\n    /**\n     * Encoder constructor\n     *\n     * @param {function} replacer - custom replacer to pass down to JSON.parse\n     */\n    constructor(replacer) {\n        this.replacer = replacer;\n    }\n    /**\n     * Encode a packet as a single string if non-binary, or as a\n     * buffer sequence, depending on packet type.\n     *\n     * @param {Object} obj - packet object\n     */\n    encode(obj) {\n        if (obj.type === PacketType.EVENT || obj.type === PacketType.ACK) {\n            if (hasBinary(obj)) {\n                return this.encodeAsBinary({\n                    type: obj.type === PacketType.EVENT\n                        ? PacketType.BINARY_EVENT\n                        : PacketType.BINARY_ACK,\n                    nsp: obj.nsp,\n                    data: obj.data,\n                    id: obj.id,\n                });\n            }\n        }\n        return [this.encodeAsString(obj)];\n    }\n    /**\n     * Encode packet as string.\n     */\n    encodeAsString(obj) {\n        // first is type\n        let str = \"\" + obj.type;\n        // attachments if we have them\n        if (obj.type === PacketType.BINARY_EVENT ||\n            obj.type === PacketType.BINARY_ACK) {\n            str += obj.attachments + \"-\";\n        }\n        // if we have a namespace other than `/`\n        // we append it followed by a comma `,`\n        if (obj.nsp && \"/\" !== obj.nsp) {\n            str += obj.nsp + \",\";\n        }\n        // immediately followed by the id\n        if (null != obj.id) {\n            str += obj.id;\n        }\n        // json data\n        if (null != obj.data) {\n            str += JSON.stringify(obj.data, this.replacer);\n        }\n        return str;\n    }\n    /**\n     * Encode packet as 'buffer sequence' by removing blobs, and\n     * deconstructing packet into object with placeholders and\n     * a list of buffers.\n     */\n    encodeAsBinary(obj) {\n        const deconstruction = deconstructPacket(obj);\n        const pack = this.encodeAsString(deconstruction.packet);\n        const buffers = deconstruction.buffers;\n        buffers.unshift(pack); // add packet info to beginning of data list\n        return buffers; // write all the buffers\n    }\n}\n// see https://stackoverflow.com/questions/8511281/check-if-a-value-is-an-object-in-javascript\nfunction isObject(value) {\n    return Object.prototype.toString.call(value) === \"[object Object]\";\n}\n/**\n * A socket.io Decoder instance\n *\n * @return {Object} decoder\n */\nexport class Decoder extends Emitter {\n    /**\n     * Decoder constructor\n     *\n     * @param {function} reviver - custom reviver to pass down to JSON.stringify\n     */\n    constructor(reviver) {\n        super();\n        this.reviver = reviver;\n    }\n    /**\n     * Decodes an encoded packet string into packet JSON.\n     *\n     * @param {String} obj - encoded packet\n     */\n    add(obj) {\n        let packet;\n        if (typeof obj === \"string\") {\n            if (this.reconstructor) {\n                throw new Error(\"got plaintext data when reconstructing a packet\");\n            }\n            packet = this.decodeString(obj);\n            const isBinaryEvent = packet.type === PacketType.BINARY_EVENT;\n            if (isBinaryEvent || packet.type === PacketType.BINARY_ACK) {\n                packet.type = isBinaryEvent ? PacketType.EVENT : PacketType.ACK;\n                // binary packet's json\n                this.reconstructor = new BinaryReconstructor(packet);\n                // no attachments, labeled binary but no binary data to follow\n                if (packet.attachments === 0) {\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n            else {\n                // non-binary full packet\n                super.emitReserved(\"decoded\", packet);\n            }\n        }\n        else if (isBinary(obj) || obj.base64) {\n            // raw binary data\n            if (!this.reconstructor) {\n                throw new Error(\"got binary data when not reconstructing a packet\");\n            }\n            else {\n                packet = this.reconstructor.takeBinaryData(obj);\n                if (packet) {\n                    // received final buffer\n                    this.reconstructor = null;\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n        }\n        else {\n            throw new Error(\"Unknown type: \" + obj);\n        }\n    }\n    /**\n     * Decode a packet String (JSON data)\n     *\n     * @param {String} str\n     * @return {Object} packet\n     */\n    decodeString(str) {\n        let i = 0;\n        // look up type\n        const p = {\n            type: Number(str.charAt(0)),\n        };\n        if (PacketType[p.type] === undefined) {\n            throw new Error(\"unknown packet type \" + p.type);\n        }\n        // look up attachments if type binary\n        if (p.type === PacketType.BINARY_EVENT ||\n            p.type === PacketType.BINARY_ACK) {\n            const start = i + 1;\n            while (str.charAt(++i) !== \"-\" && i != str.length) { }\n            const buf = str.substring(start, i);\n            if (buf != Number(buf) || str.charAt(i) !== \"-\") {\n                throw new Error(\"Illegal attachments\");\n            }\n            p.attachments = Number(buf);\n        }\n        // look up namespace (if any)\n        if (\"/\" === str.charAt(i + 1)) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (\",\" === c)\n                    break;\n                if (i === str.length)\n                    break;\n            }\n            p.nsp = str.substring(start, i);\n        }\n        else {\n            p.nsp = \"/\";\n        }\n        // look up id\n        const next = str.charAt(i + 1);\n        if (\"\" !== next && Number(next) == next) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (null == c || Number(c) != c) {\n                    --i;\n                    break;\n                }\n                if (i === str.length)\n                    break;\n            }\n            p.id = Number(str.substring(start, i + 1));\n        }\n        // look up json data\n        if (str.charAt(++i)) {\n            const payload = this.tryParse(str.substr(i));\n            if (Decoder.isPayloadValid(p.type, payload)) {\n                p.data = payload;\n            }\n            else {\n                throw new Error(\"invalid payload\");\n            }\n        }\n        return p;\n    }\n    tryParse(str) {\n        try {\n            return JSON.parse(str, this.reviver);\n        }\n        catch (e) {\n            return false;\n        }\n    }\n    static isPayloadValid(type, payload) {\n        switch (type) {\n            case PacketType.CONNECT:\n                return isObject(payload);\n            case PacketType.DISCONNECT:\n                return payload === undefined;\n            case PacketType.CONNECT_ERROR:\n                return typeof payload === \"string\" || isObject(payload);\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                return (Array.isArray(payload) &&\n                    (typeof payload[0] === \"number\" ||\n                        (typeof payload[0] === \"string\" &&\n                            RESERVED_EVENTS.indexOf(payload[0]) === -1)));\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                return Array.isArray(payload);\n        }\n    }\n    /**\n     * Deallocates a parser's resources\n     */\n    destroy() {\n        if (this.reconstructor) {\n            this.reconstructor.finishedReconstruction();\n            this.reconstructor = null;\n        }\n    }\n}\n/**\n * A manager of a binary event's 'buffer sequence'. Should\n * be constructed whenever a packet of type BINARY_EVENT is\n * decoded.\n *\n * @param {Object} packet\n * @return {BinaryReconstructor} initialized reconstructor\n */\nclass BinaryReconstructor {\n    constructor(packet) {\n        this.packet = packet;\n        this.buffers = [];\n        this.reconPack = packet;\n    }\n    /**\n     * Method to be called when binary data received from connection\n     * after a BINARY_EVENT packet.\n     *\n     * @param {Buffer | ArrayBuffer} binData - the raw binary data received\n     * @return {null | Object} returns null if more binary data is expected or\n     *   a reconstructed packet object if all buffers have been received.\n     */\n    takeBinaryData(binData) {\n        this.buffers.push(binData);\n        if (this.buffers.length === this.reconPack.attachments) {\n            // done with buffer list\n            const packet = reconstructPacket(this.reconPack, this.buffers);\n            this.finishedReconstruction();\n            return packet;\n        }\n        return null;\n    }\n    /**\n     * Cleans up binary packet reconstruction variables.\n     */\n    finishedReconstruction() {\n        this.reconPack = null;\n        this.buffers = [];\n    }\n}\n", "const withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nconst isView = (obj) => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj.buffer instanceof ArrayBuffer;\n};\nconst toString = Object.prototype.toString;\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeFile = typeof File === \"function\" ||\n    (typeof File !== \"undefined\" &&\n        toString.call(File) === \"[object FileConstructor]\");\n/**\n * Returns true if obj is a Buffer, an ArrayBuffer, a Blob or a File.\n *\n * @private\n */\nexport function isBinary(obj) {\n    return ((withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj))) ||\n        (withNativeBlob && obj instanceof Blob) ||\n        (withNativeFile && obj instanceof File));\n}\nexport function hasBinary(obj, toJSON) {\n    if (!obj || typeof obj !== \"object\") {\n        return false;\n    }\n    if (Array.isArray(obj)) {\n        for (let i = 0, l = obj.length; i < l; i++) {\n            if (hasBinary(obj[i])) {\n                return true;\n            }\n        }\n        return false;\n    }\n    if (isBinary(obj)) {\n        return true;\n    }\n    if (obj.toJSON &&\n        typeof obj.toJSON === \"function\" &&\n        arguments.length === 1) {\n        return hasBinary(obj.toJSON(), true);\n    }\n    for (const key in obj) {\n        if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {\n            return true;\n        }\n    }\n    return false;\n}\n", "import { isBinary } from \"./is-binary.js\";\n/**\n * Replaces every Buffer | ArrayBuffer | Blob | File in packet with a numbered placeholder.\n *\n * @param {Object} packet - socket.io event packet\n * @return {Object} with deconstructed packet and list of buffers\n * @public\n */\nexport function deconstructPacket(packet) {\n    const buffers = [];\n    const packetData = packet.data;\n    const pack = packet;\n    pack.data = _deconstructPacket(packetData, buffers);\n    pack.attachments = buffers.length; // number of binary 'attachments'\n    return { packet: pack, buffers: buffers };\n}\nfunction _deconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (isBinary(data)) {\n        const placeholder = { _placeholder: true, num: buffers.length };\n        buffers.push(data);\n        return placeholder;\n    }\n    else if (Array.isArray(data)) {\n        const newData = new Array(data.length);\n        for (let i = 0; i < data.length; i++) {\n            newData[i] = _deconstructPacket(data[i], buffers);\n        }\n        return newData;\n    }\n    else if (typeof data === \"object\" && !(data instanceof Date)) {\n        const newData = {};\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                newData[key] = _deconstructPacket(data[key], buffers);\n            }\n        }\n        return newData;\n    }\n    return data;\n}\n/**\n * Reconstructs a binary packet from its placeholder packet and buffers\n *\n * @param {Object} packet - event packet with placeholders\n * @param {Array} buffers - binary buffers to put in placeholder positions\n * @return {Object} reconstructed packet\n * @public\n */\nexport function reconstructPacket(packet, buffers) {\n    packet.data = _reconstructPacket(packet.data, buffers);\n    delete packet.attachments; // no longer useful\n    return packet;\n}\nfunction _reconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (data && data._placeholder === true) {\n        const isIndexValid = typeof data.num === \"number\" &&\n            data.num >= 0 &&\n            data.num < buffers.length;\n        if (isIndexValid) {\n            return buffers[data.num]; // appropriate buffer (should be natural order anyway)\n        }\n        else {\n            throw new Error(\"illegal attachments\");\n        }\n    }\n    else if (Array.isArray(data)) {\n        for (let i = 0; i < data.length; i++) {\n            data[i] = _reconstructPacket(data[i], buffers);\n        }\n    }\n    else if (typeof data === \"object\") {\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                data[key] = _reconstructPacket(data[key], buffers);\n            }\n        }\n    }\n    return data;\n}\n", "export function on(obj, ev, fn) {\n    obj.on(ev, fn);\n    return function subDestroy() {\n        obj.off(ev, fn);\n    };\n}\n", "import { PacketType } from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\n/**\n * Internal events.\n * These events can't be emitted by the user.\n */\nconst RESERVED_EVENTS = Object.freeze({\n    connect: 1,\n    connect_error: 1,\n    disconnect: 1,\n    disconnecting: 1,\n    // EventEmitter reserved events: https://nodejs.org/api/events.html#events_event_newlistener\n    newListener: 1,\n    removeListener: 1,\n});\n/**\n * A Socket is the fundamental class for interacting with the server.\n *\n * A Socket belongs to a certain Namespace (by default /) and uses an underlying {@link Manager} to communicate.\n *\n * @example\n * const socket = io();\n *\n * socket.on(\"connect\", () => {\n *   console.log(\"connected\");\n * });\n *\n * // send an event to the server\n * socket.emit(\"foo\", \"bar\");\n *\n * socket.on(\"foobar\", () => {\n *   // an event was received from the server\n * });\n *\n * // upon disconnection\n * socket.on(\"disconnect\", (reason) => {\n *   console.log(`disconnected due to ${reason}`);\n * });\n */\nexport class Socket extends Emitter {\n    /**\n     * `Socket` constructor.\n     */\n    constructor(io, nsp, opts) {\n        super();\n        /**\n         * Whether the socket is currently connected to the server.\n         *\n         * @example\n         * const socket = io();\n         *\n         * socket.on(\"connect\", () => {\n         *   console.log(socket.connected); // true\n         * });\n         *\n         * socket.on(\"disconnect\", () => {\n         *   console.log(socket.connected); // false\n         * });\n         */\n        this.connected = false;\n        /**\n         * Whether the connection state was recovered after a temporary disconnection. In that case, any missed packets will\n         * be transmitted by the server.\n         */\n        this.recovered = false;\n        /**\n         * Buffer for packets received before the CONNECT packet\n         */\n        this.receiveBuffer = [];\n        /**\n         * Buffer for packets that will be sent once the socket is connected\n         */\n        this.sendBuffer = [];\n        /**\n         * The queue of packets to be sent with retry in case of failure.\n         *\n         * Packets are sent one by one, each waiting for the server acknowledgement, in order to guarantee the delivery order.\n         * @private\n         */\n        this._queue = [];\n        /**\n         * A sequence to generate the ID of the {@link QueuedPacket}.\n         * @private\n         */\n        this._queueSeq = 0;\n        this.ids = 0;\n        this.acks = {};\n        this.flags = {};\n        this.io = io;\n        this.nsp = nsp;\n        if (opts && opts.auth) {\n            this.auth = opts.auth;\n        }\n        this._opts = Object.assign({}, opts);\n        if (this.io._autoConnect)\n            this.open();\n    }\n    /**\n     * Whether the socket is currently disconnected\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"connect\", () => {\n     *   console.log(socket.disconnected); // false\n     * });\n     *\n     * socket.on(\"disconnect\", () => {\n     *   console.log(socket.disconnected); // true\n     * });\n     */\n    get disconnected() {\n        return !this.connected;\n    }\n    /**\n     * Subscribe to open, close and packet events\n     *\n     * @private\n     */\n    subEvents() {\n        if (this.subs)\n            return;\n        const io = this.io;\n        this.subs = [\n            on(io, \"open\", this.onopen.bind(this)),\n            on(io, \"packet\", this.onpacket.bind(this)),\n            on(io, \"error\", this.onerror.bind(this)),\n            on(io, \"close\", this.onclose.bind(this)),\n        ];\n    }\n    /**\n     * Whether the Socket will try to reconnect when its Manager connects or reconnects.\n     *\n     * @example\n     * const socket = io();\n     *\n     * console.log(socket.active); // true\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   if (reason === \"io server disconnect\") {\n     *     // the disconnection was initiated by the server, you need to manually reconnect\n     *     console.log(socket.active); // false\n     *   }\n     *   // else the socket will automatically try to reconnect\n     *   console.log(socket.active); // true\n     * });\n     */\n    get active() {\n        return !!this.subs;\n    }\n    /**\n     * \"Opens\" the socket.\n     *\n     * @example\n     * const socket = io({\n     *   autoConnect: false\n     * });\n     *\n     * socket.connect();\n     */\n    connect() {\n        if (this.connected)\n            return this;\n        this.subEvents();\n        if (!this.io[\"_reconnecting\"])\n            this.io.open(); // ensure open\n        if (\"open\" === this.io._readyState)\n            this.onopen();\n        return this;\n    }\n    /**\n     * Alias for {@link connect()}.\n     */\n    open() {\n        return this.connect();\n    }\n    /**\n     * Sends a `message` event.\n     *\n     * This method mimics the WebSocket.send() method.\n     *\n     * @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send\n     *\n     * @example\n     * socket.send(\"hello\");\n     *\n     * // this is equivalent to\n     * socket.emit(\"message\", \"hello\");\n     *\n     * @return self\n     */\n    send(...args) {\n        args.unshift(\"message\");\n        this.emit.apply(this, args);\n        return this;\n    }\n    /**\n     * Override `emit`.\n     * If the event is in `events`, it's emitted normally.\n     *\n     * @example\n     * socket.emit(\"hello\", \"world\");\n     *\n     * // all serializable datastructures are supported (no need to call JSON.stringify)\n     * socket.emit(\"hello\", 1, \"2\", { 3: [\"4\"], 5: Uint8Array.from([6]) });\n     *\n     * // with an acknowledgement from the server\n     * socket.emit(\"hello\", \"world\", (val) => {\n     *   // ...\n     * });\n     *\n     * @return self\n     */\n    emit(ev, ...args) {\n        if (RESERVED_EVENTS.hasOwnProperty(ev)) {\n            throw new Error('\"' + ev.toString() + '\" is a reserved event name');\n        }\n        args.unshift(ev);\n        if (this._opts.retries && !this.flags.fromQueue && !this.flags.volatile) {\n            this._addToQueue(args);\n            return this;\n        }\n        const packet = {\n            type: PacketType.EVENT,\n            data: args,\n        };\n        packet.options = {};\n        packet.options.compress = this.flags.compress !== false;\n        // event ack callback\n        if (\"function\" === typeof args[args.length - 1]) {\n            const id = this.ids++;\n            const ack = args.pop();\n            this._registerAckCallback(id, ack);\n            packet.id = id;\n        }\n        const isTransportWritable = this.io.engine &&\n            this.io.engine.transport &&\n            this.io.engine.transport.writable;\n        const discardPacket = this.flags.volatile && (!isTransportWritable || !this.connected);\n        if (discardPacket) {\n        }\n        else if (this.connected) {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        }\n        else {\n            this.sendBuffer.push(packet);\n        }\n        this.flags = {};\n        return this;\n    }\n    /**\n     * @private\n     */\n    _registerAckCallback(id, ack) {\n        var _a;\n        const timeout = (_a = this.flags.timeout) !== null && _a !== void 0 ? _a : this._opts.ackTimeout;\n        if (timeout === undefined) {\n            this.acks[id] = ack;\n            return;\n        }\n        // @ts-ignore\n        const timer = this.io.setTimeoutFn(() => {\n            delete this.acks[id];\n            for (let i = 0; i < this.sendBuffer.length; i++) {\n                if (this.sendBuffer[i].id === id) {\n                    this.sendBuffer.splice(i, 1);\n                }\n            }\n            ack.call(this, new Error(\"operation has timed out\"));\n        }, timeout);\n        this.acks[id] = (...args) => {\n            // @ts-ignore\n            this.io.clearTimeoutFn(timer);\n            ack.apply(this, [null, ...args]);\n        };\n    }\n    /**\n     * Emits an event and waits for an acknowledgement\n     *\n     * @example\n     * // without timeout\n     * const response = await socket.emitWithAck(\"hello\", \"world\");\n     *\n     * // with a specific timeout\n     * try {\n     *   const response = await socket.timeout(1000).emitWithAck(\"hello\", \"world\");\n     * } catch (err) {\n     *   // the server did not acknowledge the event in the given delay\n     * }\n     *\n     * @return a Promise that will be fulfilled when the server acknowledges the event\n     */\n    emitWithAck(ev, ...args) {\n        // the timeout flag is optional\n        const withErr = this.flags.timeout !== undefined || this._opts.ackTimeout !== undefined;\n        return new Promise((resolve, reject) => {\n            args.push((arg1, arg2) => {\n                if (withErr) {\n                    return arg1 ? reject(arg1) : resolve(arg2);\n                }\n                else {\n                    return resolve(arg1);\n                }\n            });\n            this.emit(ev, ...args);\n        });\n    }\n    /**\n     * Add the packet to the queue.\n     * @param args\n     * @private\n     */\n    _addToQueue(args) {\n        let ack;\n        if (typeof args[args.length - 1] === \"function\") {\n            ack = args.pop();\n        }\n        const packet = {\n            id: this._queueSeq++,\n            tryCount: 0,\n            pending: false,\n            args,\n            flags: Object.assign({ fromQueue: true }, this.flags),\n        };\n        args.push((err, ...responseArgs) => {\n            if (packet !== this._queue[0]) {\n                // the packet has already been acknowledged\n                return;\n            }\n            const hasError = err !== null;\n            if (hasError) {\n                if (packet.tryCount > this._opts.retries) {\n                    this._queue.shift();\n                    if (ack) {\n                        ack(err);\n                    }\n                }\n            }\n            else {\n                this._queue.shift();\n                if (ack) {\n                    ack(null, ...responseArgs);\n                }\n            }\n            packet.pending = false;\n            return this._drainQueue();\n        });\n        this._queue.push(packet);\n        this._drainQueue();\n    }\n    /**\n     * Send the first packet of the queue, and wait for an acknowledgement from the server.\n     * @param force - whether to resend a packet that has not been acknowledged yet\n     *\n     * @private\n     */\n    _drainQueue(force = false) {\n        if (!this.connected || this._queue.length === 0) {\n            return;\n        }\n        const packet = this._queue[0];\n        if (packet.pending && !force) {\n            return;\n        }\n        packet.pending = true;\n        packet.tryCount++;\n        this.flags = packet.flags;\n        this.emit.apply(this, packet.args);\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param packet\n     * @private\n     */\n    packet(packet) {\n        packet.nsp = this.nsp;\n        this.io._packet(packet);\n    }\n    /**\n     * Called upon engine `open`.\n     *\n     * @private\n     */\n    onopen() {\n        if (typeof this.auth == \"function\") {\n            this.auth((data) => {\n                this._sendConnectPacket(data);\n            });\n        }\n        else {\n            this._sendConnectPacket(this.auth);\n        }\n    }\n    /**\n     * Sends a CONNECT packet to initiate the Socket.IO session.\n     *\n     * @param data\n     * @private\n     */\n    _sendConnectPacket(data) {\n        this.packet({\n            type: PacketType.CONNECT,\n            data: this._pid\n                ? Object.assign({ pid: this._pid, offset: this._lastOffset }, data)\n                : data,\n        });\n    }\n    /**\n     * Called upon engine or manager `error`.\n     *\n     * @param err\n     * @private\n     */\n    onerror(err) {\n        if (!this.connected) {\n            this.emitReserved(\"connect_error\", err);\n        }\n    }\n    /**\n     * Called upon engine `close`.\n     *\n     * @param reason\n     * @param description\n     * @private\n     */\n    onclose(reason, description) {\n        this.connected = false;\n        delete this.id;\n        this.emitReserved(\"disconnect\", reason, description);\n    }\n    /**\n     * Called with socket packet.\n     *\n     * @param packet\n     * @private\n     */\n    onpacket(packet) {\n        const sameNamespace = packet.nsp === this.nsp;\n        if (!sameNamespace)\n            return;\n        switch (packet.type) {\n            case PacketType.CONNECT:\n                if (packet.data && packet.data.sid) {\n                    this.onconnect(packet.data.sid, packet.data.pid);\n                }\n                else {\n                    this.emitReserved(\"connect_error\", new Error(\"It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)\"));\n                }\n                break;\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                this.onevent(packet);\n                break;\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                this.onack(packet);\n                break;\n            case PacketType.DISCONNECT:\n                this.ondisconnect();\n                break;\n            case PacketType.CONNECT_ERROR:\n                this.destroy();\n                const err = new Error(packet.data.message);\n                // @ts-ignore\n                err.data = packet.data.data;\n                this.emitReserved(\"connect_error\", err);\n                break;\n        }\n    }\n    /**\n     * Called upon a server event.\n     *\n     * @param packet\n     * @private\n     */\n    onevent(packet) {\n        const args = packet.data || [];\n        if (null != packet.id) {\n            args.push(this.ack(packet.id));\n        }\n        if (this.connected) {\n            this.emitEvent(args);\n        }\n        else {\n            this.receiveBuffer.push(Object.freeze(args));\n        }\n    }\n    emitEvent(args) {\n        if (this._anyListeners && this._anyListeners.length) {\n            const listeners = this._anyListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, args);\n            }\n        }\n        super.emit.apply(this, args);\n        if (this._pid && args.length && typeof args[args.length - 1] === \"string\") {\n            this._lastOffset = args[args.length - 1];\n        }\n    }\n    /**\n     * Produces an ack callback to emit with an event.\n     *\n     * @private\n     */\n    ack(id) {\n        const self = this;\n        let sent = false;\n        return function (...args) {\n            // prevent double callbacks\n            if (sent)\n                return;\n            sent = true;\n            self.packet({\n                type: PacketType.ACK,\n                id: id,\n                data: args,\n            });\n        };\n    }\n    /**\n     * Called upon a server acknowlegement.\n     *\n     * @param packet\n     * @private\n     */\n    onack(packet) {\n        const ack = this.acks[packet.id];\n        if (\"function\" === typeof ack) {\n            ack.apply(this, packet.data);\n            delete this.acks[packet.id];\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon server connect.\n     *\n     * @private\n     */\n    onconnect(id, pid) {\n        this.id = id;\n        this.recovered = pid && this._pid === pid;\n        this._pid = pid; // defined only if connection state recovery is enabled\n        this.connected = true;\n        this.emitBuffered();\n        this.emitReserved(\"connect\");\n        this._drainQueue(true);\n    }\n    /**\n     * Emit buffered events (received and emitted).\n     *\n     * @private\n     */\n    emitBuffered() {\n        this.receiveBuffer.forEach((args) => this.emitEvent(args));\n        this.receiveBuffer = [];\n        this.sendBuffer.forEach((packet) => {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        });\n        this.sendBuffer = [];\n    }\n    /**\n     * Called upon server disconnect.\n     *\n     * @private\n     */\n    ondisconnect() {\n        this.destroy();\n        this.onclose(\"io server disconnect\");\n    }\n    /**\n     * Called upon forced client/server side disconnections,\n     * this method ensures the manager stops tracking us and\n     * that reconnections don't get triggered for this.\n     *\n     * @private\n     */\n    destroy() {\n        if (this.subs) {\n            // clean subscriptions to avoid reconnections\n            this.subs.forEach((subDestroy) => subDestroy());\n            this.subs = undefined;\n        }\n        this.io[\"_destroy\"](this);\n    }\n    /**\n     * Disconnects the socket manually. In that case, the socket will not try to reconnect.\n     *\n     * If this is the last active Socket instance of the {@link Manager}, the low-level connection will be closed.\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   // console.log(reason); prints \"io client disconnect\"\n     * });\n     *\n     * socket.disconnect();\n     *\n     * @return self\n     */\n    disconnect() {\n        if (this.connected) {\n            this.packet({ type: PacketType.DISCONNECT });\n        }\n        // remove socket from pool\n        this.destroy();\n        if (this.connected) {\n            // fire events\n            this.onclose(\"io client disconnect\");\n        }\n        return this;\n    }\n    /**\n     * Alias for {@link disconnect()}.\n     *\n     * @return self\n     */\n    close() {\n        return this.disconnect();\n    }\n    /**\n     * Sets the compress flag.\n     *\n     * @example\n     * socket.compress(false).emit(\"hello\");\n     *\n     * @param compress - if `true`, compresses the sending data\n     * @return self\n     */\n    compress(compress) {\n        this.flags.compress = compress;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the event message will be dropped when this socket is not\n     * ready to send messages.\n     *\n     * @example\n     * socket.volatile.emit(\"hello\"); // the server may or may not receive it\n     *\n     * @returns self\n     */\n    get volatile() {\n        this.flags.volatile = true;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the callback will be called with an error when the\n     * given number of milliseconds have elapsed without an acknowledgement from the server:\n     *\n     * @example\n     * socket.timeout(5000).emit(\"my-event\", (err) => {\n     *   if (err) {\n     *     // the server did not acknowledge the event in the given delay\n     *   }\n     * });\n     *\n     * @returns self\n     */\n    timeout(timeout) {\n        this.flags.timeout = timeout;\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * @example\n     * socket.onAny((event, ...args) => {\n     *   console.log(`got ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * @example\n     * socket.prependAny((event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * }\n     *\n     * socket.onAny(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAny(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAny();\n     *\n     * @param listener\n     */\n    offAny(listener) {\n        if (!this._anyListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAny() {\n        return this._anyListeners || [];\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.onAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.prependAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * }\n     *\n     * socket.onAnyOutgoing(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAnyOutgoing(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAnyOutgoing();\n     *\n     * @param [listener] - the catch-all listener (optional)\n     */\n    offAnyOutgoing(listener) {\n        if (!this._anyOutgoingListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyOutgoingListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyOutgoingListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAnyOutgoing() {\n        return this._anyOutgoingListeners || [];\n    }\n    /**\n     * Notify the listeners for each packet sent\n     *\n     * @param packet\n     *\n     * @private\n     */\n    notifyOutgoingListeners(packet) {\n        if (this._anyOutgoingListeners && this._anyOutgoingListeners.length) {\n            const listeners = this._anyOutgoingListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, packet.data);\n            }\n        }\n    }\n}\n", "/**\n * Initialize backoff timer with `opts`.\n *\n * - `min` initial timeout in milliseconds [100]\n * - `max` max timeout [10000]\n * - `jitter` [0]\n * - `factor` [2]\n *\n * @param {Object} opts\n * @api public\n */\nexport function Backoff(opts) {\n    opts = opts || {};\n    this.ms = opts.min || 100;\n    this.max = opts.max || 10000;\n    this.factor = opts.factor || 2;\n    this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;\n    this.attempts = 0;\n}\n/**\n * Return the backoff duration.\n *\n * @return {Number}\n * @api public\n */\nBackoff.prototype.duration = function () {\n    var ms = this.ms * Math.pow(this.factor, this.attempts++);\n    if (this.jitter) {\n        var rand = Math.random();\n        var deviation = Math.floor(rand * this.jitter * ms);\n        ms = (Math.floor(rand * 10) & 1) == 0 ? ms - deviation : ms + deviation;\n    }\n    return Math.min(ms, this.max) | 0;\n};\n/**\n * Reset the number of attempts.\n *\n * @api public\n */\nBackoff.prototype.reset = function () {\n    this.attempts = 0;\n};\n/**\n * Set the minimum duration\n *\n * @api public\n */\nBackoff.prototype.setMin = function (min) {\n    this.ms = min;\n};\n/**\n * Set the maximum duration\n *\n * @api public\n */\nBackoff.prototype.setMax = function (max) {\n    this.max = max;\n};\n/**\n * Set the jitter\n *\n * @api public\n */\nBackoff.prototype.setJitter = function (jitter) {\n    this.jitter = jitter;\n};\n", "import { Socket as Engine, installTimerFunctions, nextTick, } from \"engine.io-client\";\nimport { Socket } from \"./socket.js\";\nimport * as parser from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Backoff } from \"./contrib/backo2.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\nexport class Manager extends Emitter {\n    constructor(uri, opts) {\n        var _a;\n        super();\n        this.nsps = {};\n        this.subs = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = undefined;\n        }\n        opts = opts || {};\n        opts.path = opts.path || \"/socket.io\";\n        this.opts = opts;\n        installTimerFunctions(this, opts);\n        this.reconnection(opts.reconnection !== false);\n        this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);\n        this.reconnectionDelay(opts.reconnectionDelay || 1000);\n        this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);\n        this.randomizationFactor((_a = opts.randomizationFactor) !== null && _a !== void 0 ? _a : 0.5);\n        this.backoff = new Backoff({\n            min: this.reconnectionDelay(),\n            max: this.reconnectionDelayMax(),\n            jitter: this.randomizationFactor(),\n        });\n        this.timeout(null == opts.timeout ? 20000 : opts.timeout);\n        this._readyState = \"closed\";\n        this.uri = uri;\n        const _parser = opts.parser || parser;\n        this.encoder = new _parser.Encoder();\n        this.decoder = new _parser.Decoder();\n        this._autoConnect = opts.autoConnect !== false;\n        if (this._autoConnect)\n            this.open();\n    }\n    reconnection(v) {\n        if (!arguments.length)\n            return this._reconnection;\n        this._reconnection = !!v;\n        return this;\n    }\n    reconnectionAttempts(v) {\n        if (v === undefined)\n            return this._reconnectionAttempts;\n        this._reconnectionAttempts = v;\n        return this;\n    }\n    reconnectionDelay(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelay;\n        this._reconnectionDelay = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMin(v);\n        return this;\n    }\n    randomizationFactor(v) {\n        var _a;\n        if (v === undefined)\n            return this._randomizationFactor;\n        this._randomizationFactor = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setJitter(v);\n        return this;\n    }\n    reconnectionDelayMax(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelayMax;\n        this._reconnectionDelayMax = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMax(v);\n        return this;\n    }\n    timeout(v) {\n        if (!arguments.length)\n            return this._timeout;\n        this._timeout = v;\n        return this;\n    }\n    /**\n     * Starts trying to reconnect if reconnection is enabled and we have not\n     * started reconnecting yet\n     *\n     * @private\n     */\n    maybeReconnectOnOpen() {\n        // Only try to reconnect if it's the first time we're connecting\n        if (!this._reconnecting &&\n            this._reconnection &&\n            this.backoff.attempts === 0) {\n            // keeps reconnection from firing twice for the same reconnection loop\n            this.reconnect();\n        }\n    }\n    /**\n     * Sets the current transport `socket`.\n     *\n     * @param {Function} fn - optional, callback\n     * @return self\n     * @public\n     */\n    open(fn) {\n        if (~this._readyState.indexOf(\"open\"))\n            return this;\n        this.engine = new Engine(this.uri, this.opts);\n        const socket = this.engine;\n        const self = this;\n        this._readyState = \"opening\";\n        this.skipReconnect = false;\n        // emit `open`\n        const openSubDestroy = on(socket, \"open\", function () {\n            self.onopen();\n            fn && fn();\n        });\n        const onError = (err) => {\n            this.cleanup();\n            this._readyState = \"closed\";\n            this.emitReserved(\"error\", err);\n            if (fn) {\n                fn(err);\n            }\n            else {\n                // Only do this if there is no fn to handle the error\n                this.maybeReconnectOnOpen();\n            }\n        };\n        // emit `error`\n        const errorSub = on(socket, \"error\", onError);\n        if (false !== this._timeout) {\n            const timeout = this._timeout;\n            // set timer\n            const timer = this.setTimeoutFn(() => {\n                openSubDestroy();\n                onError(new Error(\"timeout\"));\n                socket.close();\n            }, timeout);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n        this.subs.push(openSubDestroy);\n        this.subs.push(errorSub);\n        return this;\n    }\n    /**\n     * Alias for open()\n     *\n     * @return self\n     * @public\n     */\n    connect(fn) {\n        return this.open(fn);\n    }\n    /**\n     * Called upon transport open.\n     *\n     * @private\n     */\n    onopen() {\n        // clear old subs\n        this.cleanup();\n        // mark as open\n        this._readyState = \"open\";\n        this.emitReserved(\"open\");\n        // add new subs\n        const socket = this.engine;\n        this.subs.push(on(socket, \"ping\", this.onping.bind(this)), on(socket, \"data\", this.ondata.bind(this)), on(socket, \"error\", this.onerror.bind(this)), on(socket, \"close\", this.onclose.bind(this)), on(this.decoder, \"decoded\", this.ondecoded.bind(this)));\n    }\n    /**\n     * Called upon a ping.\n     *\n     * @private\n     */\n    onping() {\n        this.emitReserved(\"ping\");\n    }\n    /**\n     * Called with data.\n     *\n     * @private\n     */\n    ondata(data) {\n        try {\n            this.decoder.add(data);\n        }\n        catch (e) {\n            this.onclose(\"parse error\", e);\n        }\n    }\n    /**\n     * Called when parser fully decodes a packet.\n     *\n     * @private\n     */\n    ondecoded(packet) {\n        // the nextTick call prevents an exception in a user-provided event listener from triggering a disconnection due to a \"parse error\"\n        nextTick(() => {\n            this.emitReserved(\"packet\", packet);\n        }, this.setTimeoutFn);\n    }\n    /**\n     * Called upon socket error.\n     *\n     * @private\n     */\n    onerror(err) {\n        this.emitReserved(\"error\", err);\n    }\n    /**\n     * Creates a new socket for the given `nsp`.\n     *\n     * @return {Socket}\n     * @public\n     */\n    socket(nsp, opts) {\n        let socket = this.nsps[nsp];\n        if (!socket) {\n            socket = new Socket(this, nsp, opts);\n            this.nsps[nsp] = socket;\n        }\n        else if (this._autoConnect && !socket.active) {\n            socket.connect();\n        }\n        return socket;\n    }\n    /**\n     * Called upon a socket close.\n     *\n     * @param socket\n     * @private\n     */\n    _destroy(socket) {\n        const nsps = Object.keys(this.nsps);\n        for (const nsp of nsps) {\n            const socket = this.nsps[nsp];\n            if (socket.active) {\n                return;\n            }\n        }\n        this._close();\n    }\n    /**\n     * Writes a packet.\n     *\n     * @param packet\n     * @private\n     */\n    _packet(packet) {\n        const encodedPackets = this.encoder.encode(packet);\n        for (let i = 0; i < encodedPackets.length; i++) {\n            this.engine.write(encodedPackets[i], packet.options);\n        }\n    }\n    /**\n     * Clean up transport subscriptions and packet buffer.\n     *\n     * @private\n     */\n    cleanup() {\n        this.subs.forEach((subDestroy) => subDestroy());\n        this.subs.length = 0;\n        this.decoder.destroy();\n    }\n    /**\n     * Close the current socket.\n     *\n     * @private\n     */\n    _close() {\n        this.skipReconnect = true;\n        this._reconnecting = false;\n        this.onclose(\"forced close\");\n        if (this.engine)\n            this.engine.close();\n    }\n    /**\n     * Alias for close()\n     *\n     * @private\n     */\n    disconnect() {\n        return this._close();\n    }\n    /**\n     * Called upon engine close.\n     *\n     * @private\n     */\n    onclose(reason, description) {\n        this.cleanup();\n        this.backoff.reset();\n        this._readyState = \"closed\";\n        this.emitReserved(\"close\", reason, description);\n        if (this._reconnection && !this.skipReconnect) {\n            this.reconnect();\n        }\n    }\n    /**\n     * Attempt a reconnection.\n     *\n     * @private\n     */\n    reconnect() {\n        if (this._reconnecting || this.skipReconnect)\n            return this;\n        const self = this;\n        if (this.backoff.attempts >= this._reconnectionAttempts) {\n            this.backoff.reset();\n            this.emitReserved(\"reconnect_failed\");\n            this._reconnecting = false;\n        }\n        else {\n            const delay = this.backoff.duration();\n            this._reconnecting = true;\n            const timer = this.setTimeoutFn(() => {\n                if (self.skipReconnect)\n                    return;\n                this.emitReserved(\"reconnect_attempt\", self.backoff.attempts);\n                // check again for the case socket closed in above events\n                if (self.skipReconnect)\n                    return;\n                self.open((err) => {\n                    if (err) {\n                        self._reconnecting = false;\n                        self.reconnect();\n                        this.emitReserved(\"reconnect_error\", err);\n                    }\n                    else {\n                        self.onreconnect();\n                    }\n                });\n            }, delay);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n    }\n    /**\n     * Called upon successful reconnect.\n     *\n     * @private\n     */\n    onreconnect() {\n        const attempt = this.backoff.attempts;\n        this._reconnecting = false;\n        this.backoff.reset();\n        this.emitReserved(\"reconnect\", attempt);\n    }\n}\n", "import { url } from \"./url.js\";\nimport { Manager } from \"./manager.js\";\nimport { Socket } from \"./socket.js\";\n/**\n * Managers cache.\n */\nconst cache = {};\nfunction lookup(uri, opts) {\n    if (typeof uri === \"object\") {\n        opts = uri;\n        uri = undefined;\n    }\n    opts = opts || {};\n    const parsed = url(uri, opts.path || \"/socket.io\");\n    const source = parsed.source;\n    const id = parsed.id;\n    const path = parsed.path;\n    const sameNamespace = cache[id] && path in cache[id][\"nsps\"];\n    const newConnection = opts.forceNew ||\n        opts[\"force new connection\"] ||\n        false === opts.multiplex ||\n        sameNamespace;\n    let io;\n    if (newConnection) {\n        io = new Manager(source, opts);\n    }\n    else {\n        if (!cache[id]) {\n            cache[id] = new Manager(source, opts);\n        }\n        io = cache[id];\n    }\n    if (parsed.query && !opts.query) {\n        opts.query = parsed.queryKey;\n    }\n    return io.socket(parsed.path, opts);\n}\n// so that \"lookup\" can be used both as a function (e.g. `io(...)`) and as a\n// namespace (e.g. `io.connect(...)`), for backward compatibility\nObject.assign(lookup, {\n    Manager,\n    Socket,\n    io: lookup,\n    connect: lookup,\n});\n/**\n * Protocol version.\n *\n * @public\n */\nexport { protocol } from \"socket.io-parser\";\n/**\n * Expose constructors for standalone build.\n *\n * @public\n */\nexport { Manager, Socket, lookup as io, lookup as connect, lookup as default, };\n", "/** A zero dependency web component that will display a managed uibuilder variable.\n *\n * Version: 1.0.1 2023-12-27\n */\n/*\n  Copyright (c) 2023-2024 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n// const template = document.createElement('template')\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<link type=\"text/css\" rel=\"stylesheet\" href=\"\"../uibuilder/uib-brand.min.css\"\" media=\"all\"><span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`\n// {/* <style>@import url(\"../uibuilder/uib-brand.min.css\");</style><span></span> */}\n// `\n\nexport default class UibVar extends HTMLElement {\n    //#region --- Class Properties ---\n    /** @type {string} Name of the uibuilder mangaged variable to use */\n    variable\n    /** Current value of the watched variable */\n    value\n    /** Whether to output if the variable is undefined */\n    undef = false\n    /** Whether to send update value to Node-RED on change */\n    report = false\n    /** What is the value type */\n    type = 'plain'\n    /** what are the available types? */\n    types = ['plain', 'html', 'markdown', 'object']\n    /** Holds uibuilder.onTopic listeners */\n    topicMonitors = {}\n    /** Is UIBUILDER loaded? */\n    uib = !!window['uibuilder']\n\n    /** Mini jQuery-like shadow dom selector (see constructor) */\n    $\n\n    /** Holds a count of how many instances of this component are on the page */\n    static _iCount = 0\n    /** @type {Array<string>} List of all of the html attribs (props) listened to */\n    static props = ['filter', 'id', 'name', 'report', 'topic', 'type', 'undefined', 'variable',]\n    //#endregion --- Class Properties ---\n\n    constructor() {\n        super()\n        this.shadow = this.attachShadow({ mode: 'open', delegatesFocus: true })\n        //  .append(template.content.cloneNode(true))\n\n        this.$ = this.shadowRoot.querySelector.bind(this.shadowRoot)\n\n        // Apply external styles to the shadow dom - assumes you use index.css in same url location as main url\n        this.css = document.createElement('link')\n        this.css.setAttribute('type', 'text/css')\n        this.css.setAttribute('rel', 'stylesheet')\n        this.css.setAttribute('href', './index.css')\n\n        this.dispatchEvent(new Event('uib-var:construction', { bubbles: true, composed: true }))\n    }\n\n    // Makes HTML attribute change watched\n    static get observedAttributes() {\n        return UibVar.props\n    }\n\n    /** Handle watched attributes\n     * NOTE: On initial startup, this is called for each watched attrib set in HTML - BEFORE connectedCallback is called.\n     * Attribute values can only ever be strings\n     * @param {string} attrib The name of the attribute that is changing\n     * @param {string} newVal The new value of the attribute\n     * @param {string} oldVal The old value of the attribute\n     */\n    attributeChangedCallback(attrib, oldVal, newVal) {\n        if ( oldVal === newVal ) return\n\n        switch (attrib) {\n            case 'variable': {\n                // NB Doesn't check if var exists because it might not be set yet\n                if (newVal === '') throw new Error('[uib-var] Attribute \"variable\" MUST be set to a UIBUILDER managed variable name')\n                this.variable = newVal\n                this.doWatch()\n                break\n            }\n            case 'undefined': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.undef = true\n                else this.undef = false\n                break\n            }\n            case 'report': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.report = true\n                else this.report = false\n                break\n            }\n            case 'type': {\n                if (newVal === '' || !this.types.includes(newVal.toLowerCase())) this.type = 'plain'\n                else this.type = newVal\n                break\n            }\n            case 'topic': {\n                // console.log(1, attrib, newVal)\n                // Handle empty topic\n                if (!newVal) break\n                // Ignore if not using uibuilder\n                if (!this.uib) break\n                // If variable attrib set, give warning and ignore\n                if (this.variable) {\n                    console.warn('\u26A0\uFE0F [uib-var] Cannot process both variable and topic attributes, use only 1. Using variable')\n                    break\n                }\n\n                this.topic = newVal\n\n                // Cancel old listener just in case\n                if (this.topicMonitors[newVal]) uibuilder.cancelTopic(newVal, this.topicMonitors[newVal])\n                // Set up a uibuilder listener for this topic - ASSUMES msg.payload contains the VALUE to show\n                this.topicMonitors[newVal] = uibuilder.onTopic(newVal, (msg) => {\n                    // console.log('topicMonitor ', newVal, msg)\n                    this.value = msg.payload\n                    this.varDom()\n                    if (this.report === true) window['uibuilder'].send({ topic: this.variable, payload: this.value || undefined })\n                })\n                this.varDom()\n\n                break\n            }\n            case 'filter': {\n                this.filter = undefined\n                this.filterArgs = []\n\n                // Handle empty filter\n                if (!newVal) break\n\n                this.filter = newVal\n\n                // Filter the input - at least limit the length of the attr\n                newVal = newVal.slice(0, 127)\n                // Remove spaces and then separate fn name from potential extra arguments\n                const f = newVal.replace(/\\s/g, '').match(/([a-zA-Z_$][a-zA-Z_$0-9.-]+)(\\((.*)\\))?/)\n                if (!f) {\n                    console.warn(`\u26A0\uFE0F [uib-var] Filter function \"${newVal}\" invalid. Cannot process.`)\n                    break\n                }\n                // Fn name\n                this.filter = f[1]\n                // Fn arguments\n                if (f[3]) { // undefined if no args found\n                    // TODO Do we really want to try this?\n                    try {\n                        this.filterArgs = JSON.parse(f[3])\n                    } catch (e) {}\n\n                    this.filterArgs = f[3].split(',').map((x) => {\n                        // No objects/arrays allowed - if they have a , they are split\n                        x = x.trim()\n                        // @ts-ignore NB: Do NOT use Number.isNaN here, it is too narrow minded\n                        if (isNaN(x)) {\n                            // String inside string ends up double quoted so remove those\n                            let y = x.replace(/^[\"'`]/, '').replace(/[\"'`]$/, '')\n                            // Attempt very limited parse in case it is valid object/array\n                            try {\n                                y = new Function(`return ${y}`)() // eslint-disable-line no-new-func\n                            } catch (e) {}\n                            return y\n                        }\n                        return Number(x)\n                    })\n                }\n\n                // Apply the filter directly if neither variable nor topic attribs set\n                if (!this.variable && !this.topic) this.varDom(false)\n                break\n            }\n\n            default: {\n                this[attrib] = newVal\n                break\n            }\n        }\n    } // --- end of attributeChangedCallback --- //\n\n    // Runs when an instance is added to the DOM\n    connectedCallback() {\n        // Make sure instance has an ID. Create an id from name or calculation if needed\n        if (!this.id) {\n            if (!this.name) this.name = this.getAttribute('name')\n            if (this.name) this.id = this.name.toLowerCase().replace(/\\s/g, '_')\n            else this.id = `uib-var-${++UibVar._iCount}`\n        }\n    }  // ---- end of connectedCallback ---- //\n\n    // Runs when an instance is removed from the DOM\n    disconnectedCallback() {\n        // Ignore if not using uibuilder\n        if (this.uib) {\n            Object.keys(this.topicMonitors).forEach( topic => {\n                uibuilder.cancelTopic(topic, this.topicMonitors[topic])\n            })\n        }\n    } // ---- end of disconnectedCallback ---- //\n\n    /** Process changes to the required uibuilder variable */\n    doWatch() {\n        if (!this.variable) throw new Error('No variable name provided')\n        // if (!this.uib) throw new Error('UIBUILDER client library not loaded - this component must be loaded AFTER the UIBUILDER library')\n\n        this.value = window['uibuilder'].get(this.variable)\n        this.varDom()\n\n        // Watch for changes in the variable\n        window['uibuilder'].onChange(this.variable, (val) => {\n            this.value = val\n            this.varDom()\n            if (this.report === true) window['uibuilder'].send({ topic: this.variable, payload: this.value || undefined })\n        })\n    }\n\n    /** Convert this.value to DOM output (applies output filter if needed)\n     * @param {boolean} chkVal If true (default), check for undefined value. False used to run filter even with no value set.\n     */\n    varDom(chkVal = true) {\n        // If user doesn't want to show undefined vars, allow the component slot to show instead\n        if (chkVal === true && !this.value && this.undef !== true) {\n            this.shadow.innerHTML = '<slot></slot>'\n            return\n        }\n\n        // Apply the filter to the value before display\n        const val = chkVal ? this.doFilter(this.value) : this.doFilter()\n\n        // console.log('\uD83E\uDDEA varDOM: ', val, typeof val, this.type)\n\n        let out = val\n\n        switch (this.type) {\n            case 'markdown': {\n                if (this.uib) out = window['uibuilder'].convertMarkdown(val)\n                break\n            }\n\n            case 'object': {\n                // console.log(window['uibuilder'].syntaxHighlight(val))\n                out = `<pre class=\"syntax-highlight\">${this.uib ? window['uibuilder'].syntaxHighlight(val) : val}</pre>`\n                break\n            }\n\n            case 'plain':\n            case 'html':\n            default: {\n                const t = typeof val\n                if (Array.isArray(val) || t === '[object Object]' || t === 'object') {\n                    try {\n                        out = JSON.stringify(val)\n                    } catch (e) {}\n                }\n                break\n            }\n        }\n        if (this.uib) this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(out)\n        else this.shadow.innerHTML = out\n\n        this.shadow.appendChild(this.css)\n    }\n\n    /** Apply value filter if specified\n     * @param {*} value The value to change\n     * @returns {*} The amended value that will be displayed\n     */\n    doFilter(value) {\n        if (this.filter) {\n            // Cater for dotted notation functions (e.g. uibuilder.get)\n            const splitFilter = this.filter.split('.')\n            let globalFn = globalThis[splitFilter[0]]\n            if (globalFn && splitFilter.length > 1) {\n                const parts = [splitFilter.pop()]\n                parts.forEach( part => {\n                    globalFn = globalFn[part]\n                } )\n            }\n            if (!globalFn && this.uib === true) globalFn = globalThis['uibuilder'][splitFilter[0]]\n            if (globalFn && typeof globalFn !== 'function' ) globalFn = undefined\n            if (globalFn) {\n                const argList = value === undefined ? [...this.filterArgs] : [value, ...this.filterArgs]\n                value = Reflect.apply(globalFn, value ?? globalFn, argList)\n            } else {\n                console.warn(`\u26A0\uFE0F [uib-var] Filter function \"${this.filter}\" ${typeof globalFn === 'object' ? 'is an object not a function' : 'not found'}`)\n            }\n        }\n\n        return value\n    }\n}\n\n// Add the class as a new Custom Element to the window object\n// customElements.define('uib-var', UibVar)\n"],
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"parts", "parse", "str", "src", "b", "e", "m", "uri", "i", "pathNames", "queryKey", "obj", "path", "regx", "names", "query", "data", "$0", "$1", "$2", "Socket", "_Socket", "Emitter", "uri", "opts", "defaultBinaryType", "parse", "installTimerFunctions", "decode", "name", "query", "protocol", "transports", "transport", "reason", "failed", "onTransportOpen", "msg", "cleanup", "err", "freezeTransport", "onerror", "error", "onTransportClose", "onclose", "onupgrade", "to", "i", "l", "packet", "data", "packets", "payloadSize", "byteLength", "options", "fn", "type", "close", "cleanupAndClose", "waitForUpgrade", "description", "upgrades", "filteredUpgrades", "j", "protocol", "Socket", "url", "uri", "path", "loc", "obj", "parse", "host", "esm_exports", "__export", "Decoder", "Encoder", "PacketType", "protocol", "withNativeArrayBuffer", "isView", "obj", "toString", "withNativeBlob", "withNativeFile", "isBinary", "hasBinary", "toJSON", "i", "l", "key", "deconstructPacket", "packet", "buffers", "packetData", "pack", "_deconstructPacket", "data", "isBinary", "placeholder", "newData", "key", "reconstructPacket", "_reconstructPacket", "i", "RESERVED_EVENTS", "protocol", "PacketType", "Encoder", "replacer", "obj", "hasBinary", "str", "deconstruction", "deconstructPacket", "pack", "buffers", "isObject", "value", "Decoder", "_Decoder", "Emitter", "reviver", "packet", "isBinaryEvent", "BinaryReconstructor", "isBinary", "i", "p", "start", "buf", "next", "c", "payload", "type", "binData", "reconstructPacket", "on", "obj", "ev", "fn", "RESERVED_EVENTS", "Socket", "Emitter", "io", "nsp", "opts", "on", "args", "ev", "packet", "PacketType", "id", "ack", "isTransportWritable", "_a", "timeout", "timer", "i", "withErr", "resolve", "reject", "arg1", "arg2", "err", "responseArgs", "force", "data", "reason", "description", "listeners", "listener", "self", "sent", "pid", "subDestroy", "compress", "Backoff", "opts", "ms", "rand", "deviation", "min", "max", "jitter", "Manager", "Emitter", "uri", "opts", "_a", "installTimerFunctions", "Backoff", "_parser", "esm_exports", "v", "fn", "Socket", "socket", "self", "openSubDestroy", "on", "onError", "err", "errorSub", "timeout", "timer", "data", "e", "packet", "nextTick", "nsp", "nsps", "encodedPackets", "subDestroy", "reason", "description", "delay", "attempt", "cache", "lookup", "uri", "opts", "parsed", "url", "source", "id", "path", "sameNamespace", "newConnection", "io", "Manager", "Socket", "_UibVar", "__publicField", "attrib", "oldVal", "newVal", "msg", "f", "x", "y", "topic", "val", "chkVal", "out", "t", "value", "splitFilter", "globalFn", "part", "argList", "UibVar", "version", "isMinified", "param", "logLevel", "LOG_STYLES", "log", "args", "level", "strLevel", "head", "makeMeAnObject", "thing", "property", "out", "urlJoin", "e", "syntaxHighlight", "json", "match", "cls", "_ui", "Ui", "_a", "_pingInterval", "_propChangeCallbacks", "_msgRecvdByTopicCallbacks", "_timerid", "_MsgHandler", "_isShowMsg", "_isShowStatus", "_sendUrlHash", "_extCommands", "_managedVars", "_showStatus", "_uiObservers", "Uib", "__publicField", "__privateAdd", "cb", "c", "splitC", "event", "__privateGet", "fullPath", "autoloadVars", "id", "prop", "val", "store", "autoload", "value", "autoVars", "title", "details", "callback", "nextCbRef", "propChangeCallback", "cbRef", "topic", "msgRecvdEvtCallback", "msg", "receivedMsg", "serverTimestamp", "offset", "originator", "ms", "oReq", "headers", "elapsedTime", "__privateSet", "varToCopy", "data", "cssSelector", "el", "exists", "url", "deflt", "ret", "toggle", "decimalPlaces", "intl", "opts", "mdText", "uiOptions", "textFn", "component", "html", "type", "ui", "propName", "showHide", "parent", "slot", "config", "res", "err", "root", "entry", "startStop", "send", "showLog", "targetNode", "that", "mutationList", "mu", "oMu", "an", "i", "htmlCache", "receivedCtrlMsg", "obj", "r", "msgToSend", "channel", "numMsgs", "cmd", "quiet", "response", "info", "newUrl", "txtToSend", "domevent", "target", "props", "key", "ignoreAttribs", "attribs", "name", "form", "frmVals", "frmEl", "v", "classes", "payload", "nprops", "room", "ioNamespace", "u", "t", "delay", "factor", "depth", "reason", "lookup", "options", "eMsg", "uibuilder", "uibuilder_module_default", "uibuilder", "UibVar"]
+  "sourcesContent": ["/* Creates HTML UI's based on a standardised data input.\n  Works stand-alone, with uibuilder or with Node.js/jsdom.\n  See: https://totallyinformation.github.io/node-red-contrib-uibuilder/#/client-docs/config-driven-ui\n\n  Author: Julian Knight (Totally Information), March 2023\n  \n  License: Apache 2.0\n  Copyright (c) 2022-2023 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n */\n/* globals module:true */\n\n// Namespaces - See https://stackoverflow.com/a/52572048/1309986\n// const NAMESPACES = {\n//     svg: 'http://www.w3.org/2000/svg',\n//     html: 'http://www.w3.org/1999/xhtml',\n//     xml: 'http://www.w3.org/XML/1998/namespace',\n//     xlink: 'http://www.w3.org/1999/xlink',\n//     xmlns: 'http://www.w3.org/2000/xmlns/' // sic for the final slash...\n// }\n\nconst Ui = class Ui {\n    version = '6.8.0-src'\n\n    // List of tags and attributes not in sanitise defaults but allowed in uibuilder.\n    sanitiseExtraTags = ['uib-var']\n    sanitiseExtraAttribs = ['variable', 'report', 'undefined']\n\n    // Reference to DOM window - must be passed in the constructor\n    // Allows for use of this library/class with `jsdom` in Node.JS as well as the browser.\n    window\n\n    /** Log function - passed in constructor or will be a dummy function\n     * @type {function}\n     */\n    static log\n\n    /** Called when `new Ui(...)` is called\n     * @param {globalThis} win Either the browser global window or jsdom dom.window\n     * @param {function} [extLog] A function that returns a function for logging\n     * @param {function} [jsonHighlight] A function that returns a highlighted HTML of JSON input\n     */\n    constructor(win, extLog, jsonHighlight) {\n        // window must be passed in as an arg to the constructor\n        // Should either be the global window for a browser or `dom.window` for jsdom in Node.js\n        if (win) this.window = win\n        else {\n            // Ui.log(0, 'Ui:constructor', 'Current environment does not include `window`, UI functions cannot be used.')()\n            // return\n            throw new Error('Ui:constructor. Current environment does not include `window`, UI functions cannot be used.')\n        }\n\n        // For convenience\n        this.document = this.window.document\n\n        // If a suitable function not passed in, create a dummy one\n        if (extLog) Ui.log = extLog\n        else Ui.log = function(){return function(){}}\n\n        // If a JSON HTML highlighting function passed then use it, else a dummy fn\n        if (jsonHighlight) this.syntaxHighlight = jsonHighlight\n        else this.syntaxHighlight = function(){}\n    }\n\n    //#region ---- Internal Methods ----\n\n    /** Show a browser notification if the browser and the user allows it\n     * @param {object} config Notification config data\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    _showNotification(config) {\n        if ( config.topic && !config.title ) config.title = config.topic\n        if ( !config.title ) config.title = 'uibuilder notification'\n        if ( config.payload && !config.body ) config.body = config.payload\n        if ( !config.body ) config.body = ' No message given.'\n        // Wrap in try/catch since Chrome Android may throw an error\n        try {\n            const notify = new Notification(config.title, config)\n            return new Promise( (resolve, reject) => {\n                // Doesn't ever seem to fire (at least in Chromium)\n                notify.addEventListener('close', ev => {\n                    ev.currentTarget.userAction = 'close'\n                    resolve(ev)\n                })\n                notify.addEventListener('click', ev => {\n                    ev.currentTarget.userAction = 'click'\n                    resolve(ev)\n                })\n                notify.addEventListener('error', ev => {\n                    ev.currentTarget.userAction = 'error'\n                    reject(ev)\n                })\n            })\n        } catch (e) {\n            return Promise.reject(new Error('Browser refused to create a Notification'))\n        }\n    }\n\n    // Vue dynamic inserts Don't really work ...\n    // _uiAddVue(ui, isRecurse) {\n\n    //     // must be Vue\n    //     // must have only 1 root element\n    //     const compToAdd = ui.components[0]\n    //     const newEl = this.document.createElement(compToAdd.type)\n\n    //     if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n    //     this._uiComposeComponent(newEl, compToAdd)\n\n    //     // If nested components, go again - but don't pass payload to sub-components\n    //     if (compToAdd.components) {\n    //         this._uiExtendEl(newEl, compToAdd.components)\n    //     }\n\n    //     console.log('MAGIC: ', this.magick, newEl, newEl.outerHTML)()\n    //     this.set('magick', newEl.outerHTML)\n\n    //     // if (compToAdd.id) newEl.setAttribute('ref', compToAdd.id)\n    //     // if (elParent.id) newEl.setAttribute('data-parent', elParent.id)\n    // }\n\n    // TODO Add check if ID already exists\n    // TODO Allow single add without using components array\n    /** Handle incoming msg._ui add requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} isRecurse Is this a recursive call?\n     */\n    _uiAdd(ui, isRecurse) {\n        Ui.log('trace', 'Ui:_uiManager:add', 'Starting _uiAdd')()\n\n        // Vue dynamic inserts Don't really work ...\n        // if (this.#isVue && !isRecurse) {\n        //     this._uiAddVue(ui, false)\n        //     return\n        // }\n\n        ui.components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiAdd:components-forEach:${i}`, 'Component to add: ', compToAdd)()\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToAdd.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToAdd.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToAdd.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToAdd.ns = 'dom'\n                    newEl = this.document.createElement(compToAdd.type)\n                    break\n                }\n            }\n\n            if (!compToAdd.slot && ui.payload) compToAdd.slot = ui.payload\n\n            // const parser = new DOMParser()\n            // const newDoc = parser.parseFromString(compToAdd.slot, 'text/html')\n            // console.log(compToAdd, newDoc.body)()\n\n            this._uiComposeComponent(newEl, compToAdd)\n\n            /** @type {HTMLElement} Where to add the new element? */\n            let elParent\n            if (compToAdd.parentEl) {\n                elParent = compToAdd.parentEl\n            } else if (ui.parentEl) {\n                elParent = ui.parentEl\n            } else if (compToAdd.parent) {\n                elParent = this.document.querySelector(compToAdd.parent)\n            } else if (ui.parent) {\n                elParent = this.document.querySelector(ui.parent)\n            }\n            if (!elParent) {\n                Ui.log('info', 'Ui:_uiAdd', 'No parent found, adding to body')()\n                elParent = this.document.querySelector('body')\n            }\n\n            if (compToAdd.position && compToAdd.position === 'first') {\n                // Insert new el before the first child of the parent. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore#example_3\n                elParent.insertBefore(newEl, elParent.firstChild)\n            } else if (compToAdd.position && Number.isInteger(Number(compToAdd.position))) {\n                elParent.insertBefore(newEl, elParent.children[compToAdd.position])\n            } else {\n                // Append to the required parent\n                elParent.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                // this._uiAdd({\n                //     method: ui.method,\n                //     parentEl: newEl,\n                //     components: compToAdd.components,\n                // }, true)\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    } // --- end of _uiAdd ---\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    _uiComposeComponent(el, comp) {\n        // Add attributes\n        if (comp.attributes) {\n            Object.keys(comp.attributes).forEach((attrib) => {\n                if (attrib === 'class' && Array.isArray(comp.attributes[attrib])) comp.attributes[attrib].join(' ')\n                // For values, set the actual value as well since the attrib only changes the DEFAULT value\n                if (attrib === 'value') el.value = comp.attributes[attrib]\n\n                if (attrib.startsWith('xlink:')) el.setAttributeNS('http://www.w3.org/1999/xlink', attrib, comp.attributes[attrib])\n                else el.setAttribute(attrib, comp.attributes[attrib])\n            })\n        }\n\n        // ID if set\n        if (comp.id) el.setAttribute('id', comp.id)\n\n        // If an SVG tag, ensure we have the appropriate namespaces added\n        if (comp.type === 'svg') {\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns', 'http://www.w3.org/2000/svg')\n            el.setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:xlink', 'http://www.w3.org/1999/xlink')\n        }\n\n        // Add event handlers\n        if (comp.events) {\n            Object.keys(comp.events).forEach((type) => {\n                // @ts-ignore  I'm forever getting this wrong!\n                if (type.toLowerCase === 'onclick') type = 'click'\n                // Add the event listener\n                try {\n                    el.addEventListener(type, (evt) => {\n                        // Use new Function to ensure that esbuild works: https://esbuild.github.io/content-types/#direct-eval\n                        (new Function('evt', `${comp.events[type]}(evt)`))(evt) // eslint-disable-line no-new-func\n                    })\n                    // newEl.setAttribute( 'onClick', `${comp.events[type]}()` )\n                } catch (err) {\n                    Ui.log('error', 'Ui:_uiComposeComponent', `Add event '${type}' for element '${comp.type}': Cannot add event handler. ${err.message}`)()\n                }\n            })\n        }\n\n        // Add custom properties to the dataset\n        if (comp.properties) {\n            Object.keys(comp.properties).forEach((prop) => {\n                // TODO break a.b into sub properties\n                el[prop] = comp.properties[prop]\n            })\n        }\n\n        //#region Add Slot content to innerHTML\n        if (comp.slot) {\n            this.replaceSlot(el, comp)\n        }\n        //#endregion\n\n        // TODO Add multi-slot capability (default slot must always be processed first as innerHTML is replaced)\n\n        //#region Add Slot Markdown content to innerHTML IF marked library is available\n        if (comp.slotMarkdown) {\n            this.replaceSlotMarkdown(el, comp)\n        }\n        //#endregion\n    }\n\n    /** Extend an HTML Element with appended elements using ui components\n     * NOTE: This fn follows a strict hierarchy of added components.\n     * @param {HTMLElement} parentEl The parent HTML Element we want to append to\n     * @param {*} components The ui component(s) we want to add\n     * @param {string} [ns] Optional. The namespace to use.\n     */\n    _uiExtendEl(parentEl, components, ns = '') {\n        components.forEach((compToAdd, i) => {\n            Ui.log('trace', `Ui:_uiExtendEl:components-forEach:${i}`, compToAdd)()\n\n            /** @type {HTMLElement} Create the new component */\n            let newEl\n\n            compToAdd.ns = ns\n\n            if (compToAdd.ns === 'html') {\n                newEl = parentEl\n                // newEl.outerHTML = compToAdd.slot\n                parentEl.innerHTML = compToAdd.slot\n            } else if (compToAdd.ns === 'svg') {\n                newEl = this.document.createElementNS('http://www.w3.org/2000/svg', compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            } else {\n                newEl = this.document.createElement(compToAdd.type === 'html' ? 'div' : compToAdd.type)\n                // Updates newEl\n                this._uiComposeComponent(newEl, compToAdd)\n                parentEl.appendChild(newEl)\n            }\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToAdd.components) {\n                this._uiExtendEl(newEl, compToAdd.components, compToAdd.ns)\n            }\n        })\n    }\n\n    // TODO Add more error handling and parameter validation\n    /** Handle incoming _ui load requests\n     * Can load JavaScript modules, JavaScript scripts and CSS.\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiLoad(ui) {\n\n        // Self-loading ECMA Modules (e.g. web components)\n        if (ui.components) {\n            if (!Array.isArray(ui.components)) ui.components = [ui.components]\n\n            ui.components.forEach(async component => {\n                await import(component)\n            })\n        }\n        // Remote Scripts\n        if (ui.srcScripts) {\n            if (!Array.isArray(ui.srcScripts)) ui.srcScripts = [ui.srcScripts]\n\n            ui.srcScripts.forEach(script => {\n                this.loadScriptSrc(script)\n            })\n        }\n        // Scripts passed as text\n        if (ui.txtScripts) {\n            if (!Array.isArray(ui.txtScripts)) ui.txtScripts = [ui.txtScripts]\n\n            this.loadScriptTxt(ui.txtScripts.join('\\n'))\n        }\n        // Remote Stylesheets\n        if (ui.srcStyles) {\n            if (!Array.isArray(ui.srcStyles)) ui.srcStyles = [ui.srcStyles]\n\n            ui.srcStyles.forEach(sheet => {\n                this.loadStyleSrc(sheet)\n            })\n        }\n        // Styles passed as text\n        if (ui.txtStyles) {\n            if (!Array.isArray(ui.txtStyles)) ui.txtStyles = [ui.txtStyles]\n\n            this.loadStyleTxt(ui.txtStyles.join('\\n'))\n        }\n\n    } // --- end of _uiLoad ---\n\n    /** Handle incoming _ui messages and loaded UI JSON files\n     * Called from start()\n     * @param {*} msg Standardised msg object containing a _ui property object\n     */\n    _uiManager(msg) {\n        if (!msg._ui) return\n\n        // Make sure that _ui is an array\n        if (!Array.isArray(msg._ui)) msg._ui = [msg._ui]\n\n        msg._ui.forEach((ui, i) => {\n            if (!ui.method) {\n                Ui.log('error', 'Ui:_uiManager', `No method defined for msg._ui[${i}]. Ignoring`)()\n                return\n            }\n\n            ui.payload = msg.payload\n            ui.topic = msg.topic\n            switch (ui.method) {\n                case 'add': {\n                    this._uiAdd(ui, false)\n                    break\n                }\n\n                case 'remove': {\n                    this._uiRemove(ui, false)\n                    break\n                }\n\n                case 'removeAll': {\n                    this._uiRemove(ui, true)\n                    break\n                }\n\n                case 'replace': {\n                    this._uiReplace(ui)\n                    break\n                }\n\n                case 'update': {\n                    this._uiUpdate(ui)\n                    break\n                }\n\n                case 'load': {\n                    this._uiLoad(ui)\n                    break\n                }\n\n                case 'reload': {\n                    this._uiReload()\n                    break\n                }\n\n                case 'notify': {\n                    this.showDialog('notify', ui, msg)\n                    break\n                }\n\n                case 'alert': {\n                    this.showDialog('alert', ui, msg)\n                    break\n                }\n\n                default: {\n                    Ui.log('error', 'Ui:_uiManager', `Invalid msg._ui[${i}].method (${ui.method}). Ignoring`)()\n                    break\n                }\n            }\n        })\n    } // --- end of _uiManager ---\n\n    /** Handle a reload request */\n    _uiReload() {\n        Ui.log('trace', 'Ui:uiManager:reload', 'reloading')()\n        location.reload()\n    }\n\n    // TODO Add better tests for failures (see comments)\n    /** Handle incoming _ui remove requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     * @param {boolean} all Optional, default=false. If true, will remove ALL found elements, otherwise only the 1st is removed\n     */\n    _uiRemove(ui, all = false) {\n        ui.components.forEach((compToRemove) => {\n            let els\n            if (all !== true) els = [this.document.querySelector(compToRemove)]\n            else els = this.document.querySelectorAll(compToRemove)\n\n            els.forEach(el => {\n                try {\n                    el.remove()\n                } catch (err) {\n                    // Could not remove. Cannot read properties of null <= no need to report this one\n                    // Could not remove. Failed to execute 'querySelector' on 'this.document': '##testbutton1' is not a valid selector\n                    Ui.log('trace', 'Ui:_uiRemove', `Could not remove. ${err.message}`)()\n                }\n            })\n        })\n    } // --- end of _uiRemove ---\n\n    /** Handle incoming _ui replace requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiReplace(ui) {\n        Ui.log('trace', 'Ui:_uiReplace', 'Starting')()\n\n        ui.components.forEach((compToReplace, /** @type {number} */ i) => {\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Component to replace: ', compToReplace)()\n\n            /** @type {HTMLElement} */\n            let elToReplace\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. FIRST element matching is updated.\n            if (compToReplace.id) {\n                elToReplace = this.document.getElementById(compToReplace.id) // .querySelector(`#${compToReplace.id}`)\n            } else if (compToReplace.selector || compToReplace.select) {\n                elToReplace = this.document.querySelector(compToReplace.selector)\n            } else if (compToReplace.name) {\n                elToReplace = this.document.querySelector(`[name=\"${compToReplace.name}\"]`)\n            } else if (compToReplace.type) {\n                elToReplace = this.document.querySelector(compToReplace.type)\n            }\n\n            Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}`, 'Element to replace: ', elToReplace)()\n\n            // Nothing was found so ADD the element instead\n            if (elToReplace === undefined || elToReplace === null) {\n                Ui.log('trace', `Ui:_uiReplace:components-forEach:${i}:noReplace`, 'Cannot find the DOM element. Adding instead.', compToReplace)()\n                this._uiAdd({ components: [compToReplace] }, false)\n                return\n            }\n\n            /** @type {*} Create the new component - some kind of HTML element */\n            let newEl\n            switch (compToReplace.type) {\n                // If trying to insert raw html, wrap in a div\n                case 'html': {\n                    compToReplace.ns = 'html'\n                    newEl = this.document.createElement('div')\n                    break\n                }\n\n                // If trying to insert raw svg, need to create in namespace\n                case 'svg': {\n                    compToReplace.ns = 'svg'\n                    newEl = this.document.createElementNS('http://www.w3.org/2000/svg', 'svg')\n                    break\n                }\n\n                default: {\n                    compToReplace.ns = 'dom'\n                    newEl = this.document.createElement(compToReplace.type)\n                    break\n                }\n            }\n\n            // Updates the newEl and maybe the ui\n            this._uiComposeComponent(newEl, compToReplace)\n\n            // Replace the current element\n            elToReplace.replaceWith(newEl)\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToReplace.components) {\n                this._uiExtendEl(newEl, compToReplace.components, compToReplace.ns)\n            }\n        })\n    } // --- end of _uiReplace ---\n\n    // TODO Allow single add without using components array\n    // TODO Allow sub-components\n    // TODO Add multi-slot capability\n    /** Handle incoming _ui update requests\n     * @param {*} ui Standardised msg._ui property object. Note that payload and topic are appended to this object\n     */\n    _uiUpdate(ui) {\n        Ui.log('trace', 'Ui:_uiManager:update', 'Starting _uiUpdate')()\n\n        // We allow an update not to actually need to spec a component\n        if (!ui.components) ui.components = [Object.assign({}, ui)]\n\n        ui.components.forEach((compToUpd, i) => {\n            Ui.log('trace', '_uiUpdate:components-forEach', `Component #${i}`, compToUpd)()\n\n            /** @type {NodeListOf<Element>} */\n            let elToUpd\n\n            // Either the id, CSS selector, name or type (element type) must be given in order to identify the element to change. ALL elements matching are updated.\n            if (compToUpd.id) {\n                // NB We don't use get by id because this way the code is simpler later on\n                elToUpd = this.document.querySelectorAll(`#${compToUpd.id}`)\n            } else if (compToUpd.selector || compToUpd.select) {\n                elToUpd = this.document.querySelectorAll(compToUpd.selector)\n            } else if (compToUpd.name) {\n                elToUpd = this.document.querySelectorAll(`[name=\"${compToUpd.name}\"]`)\n            } else if (compToUpd.type) {\n                elToUpd = this.document.querySelectorAll(compToUpd.type)\n            }\n\n            // @ts-ignore Nothing was found so give up\n            if (elToUpd === undefined || elToUpd.length < 1) {\n                Ui.log('warn', 'Ui:_uiManager:update', 'Cannot find the DOM element. Ignoring.', compToUpd)()\n                return\n            }\n\n            Ui.log('trace', '_uiUpdate:components-forEach', `Element(s) to update. Count: ${elToUpd.length}`, elToUpd)()\n\n            // If slot not specified but payload is, use the payload in the slot\n            if (!compToUpd.slot && compToUpd.payload) compToUpd.slot = compToUpd.payload\n\n            // Might have >1 element to update - so update them all\n            elToUpd.forEach(el => {\n                this._uiComposeComponent(el, compToUpd)\n            })\n\n            // If nested components, go again - but don't pass payload to sub-components\n            if (compToUpd.components) {\n                elToUpd.forEach(el => {\n                    Ui.log('trace', '_uiUpdate:components', 'el', el)()\n                    this._uiUpdate({\n                        method: ui.method,\n                        parentEl: el,\n                        components: compToUpd.components,\n                    })\n                })\n            }\n\n        })\n    } // --- end of _uiUpdate ---\n\n    //#endregion ---- -------- ----\n    //#region ---- External Methods ----\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {HTMLElement|null} Selected HTML element or null\n     */\n    $(cssSelector) {\n        /** @type {*} Some kind of HTML element */\n        let el = document.querySelector(cssSelector)\n\n        if (!el) {\n            Ui.log(1, 'Uib:$', `No element found for CSS selector ${cssSelector}`)()\n            return null\n        }\n\n        if ( el.nodeName === 'TEMPLATE' ) {\n            el = el.content.firstElementChild\n            if (!el) {\n                Ui.log(0, 'Uib:$', `Template selected for CSS selector ${cssSelector} but it is empty`)()\n                return null\n            }\n        }\n\n        return el\n    }\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {string} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {HTMLElement[]} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$(cssSelector) {\n        return Array.from(document.querySelectorAll(cssSelector))\n    }\n\n    /** Add 1 or several class names to an element\n     * @param {string|string[]} classNames Single or array of classnames\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    addClass(classNames, el) {\n        if (!Array.isArray(classNames)) classNames = [classNames]\n        if (el) el.classList.add(...classNames)\n    }\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        if (!mdText) return ''\n        if (!this.window['markdownit']) return mdText\n\n        const opts = { // eslint-disable-line object-shorthand\n            html: true,\n            linkify: true,\n            _highlight: true,\n            langPrefix: 'language-',\n            highlight(str, lang) {\n                if (lang && this.window['hljs'] && this.window['hljs'].getLanguage(lang)) {\n                    try {\n                        return `<pre class=\"highlight\" data-language=\"${lang.toUpperCase()}\">\n                                <code class=\"language-${lang}\">${this.window['hljs'].highlightAuto(str).value}</code></pre>`\n                    } finally { } // eslint-disable-line no-empty\n                }\n                return `<pre class=\"highlight\"><code>${md.utils.escapeHtml(str)}</code></pre>`\n            },\n        }\n        const md = this.window['markdownit'](opts)\n        // Convert from markdown to HTML\n        return md.render(mdText)\n    }\n\n    /** Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     * @returns {Promise<any>} Status\n     */\n    async include(url, uiOptions) { // eslint-disable-line sonarjs/cognitive-complexity\n        // TODO: src, id, parent must all be a strings\n        if (!fetch) {\n            Ui.log(0, 'Ui:include', 'Current environment does not include `fetch`, skipping.')()\n            return 'Current environment does not include `fetch`, skipping.'\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:include', 'url parameter must be provided, skipping.')()\n            return 'url parameter must be provided, skipping.'\n        }\n        if (!uiOptions || !uiOptions.id) {\n            Ui.log(0, 'Ui:include', 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.')()\n            return 'uiOptions parameter MUST be provided and must contain at least an `id` property, skipping.'\n        }\n\n        // Try to get the content via the URL\n        let response\n        try {\n            response = await fetch(url)\n        } catch (error) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. `, error.message)()\n            return error.message\n        }\n        if (!response.ok) {\n            Ui.log(0, 'Ui:include', `Fetch of file '${url}' failed. Status='${response.statusText}'`)()\n            return response.statusText\n        }\n\n        // Work out what type of data we got\n        const contentType = await response.headers.get('content-type')\n        let type = null\n        if (contentType) {\n            if (contentType.includes('text/html')) {\n                type = 'html'\n            } else if (contentType.includes('application/json')) {\n                type = 'json'\n            } else if (contentType.includes('multipart/form-data')) {\n                type = 'form'\n            } else if (contentType.includes('image/')) {\n                type = 'image'\n            } else if (contentType.includes('video/')) {\n                type = 'video'\n            } else if (contentType.includes('application/pdf')) {\n                type = 'pdf'\n            } else if (contentType.includes('text/plain')) {\n                type = 'text'\n            } // else type = null\n        }\n\n        // Create the HTML to include on the page based on type\n        let slot = ''\n        let txtReturn = 'Include successful'\n        let data\n        switch (type) {\n            case 'html': {\n                data = await response.text()\n                slot = data\n                break\n            }\n\n            case 'json': {\n                data = await response.json()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'form': {\n                data = await response.formData()\n                slot = '<pre class=\"syntax-highlight\">'\n                slot += this.syntaxHighlight(data)\n                slot += '</pre>'\n                break\n            }\n\n            case 'image': {\n                data = await response.blob()\n                slot = `<img src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:image', txtReturn)()\n                }\n                break\n            }\n\n            case 'video': {\n                data = await response.blob()\n                slot = `<video controls autoplay><source src=\"${URL.createObjectURL(data)}\"></video>`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', 'Ui:include:video', txtReturn)()\n                }\n                break\n            }\n\n            case 'pdf':\n            case 'text':\n            default: {\n                data = await response.blob()\n                slot = `<iframe style=\"resize:both;width:inherit;height:inherit;\" src=\"${URL.createObjectURL(data)}\">`\n                if (this.window['DOMPurify']) {\n                    txtReturn = 'Include successful. BUT DOMPurify loaded which may block its use.'\n                    Ui.log('warn', `Ui:include:${type}`, txtReturn)()\n                }\n                break\n            }\n        }\n\n        // Wrap it all in a <div id=\"...\" class=\"included\">\n        uiOptions.type = 'div'\n        uiOptions.slot = slot\n        if (!uiOptions.parent) uiOptions.parent = 'body'\n        if (!uiOptions.attributes) uiOptions.attributes = { class: 'included' }\n\n        // Use uibuilder's standard ui processing to turn the instructions into HTML\n        this._uiReplace({\n            components: [\n                uiOptions\n            ]\n        })\n\n        Ui.log('trace', `Ui:include:${type}`, txtReturn)()\n        return txtReturn\n    } // ---- End of include() ---- //\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        const newScript = this.document.createElement('script')\n        newScript.src = url\n        newScript.async = false\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        const newScript = this.document.createElement('script')\n        newScript.async = false\n        newScript.textContent = textFn\n        this.document.head.appendChild(newScript)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        const newStyle = this.document.createElement('link')\n        newStyle.href = url\n        newStyle.rel = 'stylesheet'\n        newStyle.type = 'text/css'\n\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        const newStyle = this.document.createElement('style')\n        newStyle.textContent = textFn\n        this.document.head.appendChild(newStyle)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        if (!fetch) {\n            Ui.log(0, 'Ui:loadui', 'Current environment does not include `fetch`, skipping.')()\n            return\n        }\n        if (!url) {\n            Ui.log(0, 'Ui:loadui', 'url parameter must be provided, skipping.')()\n            return\n        }\n\n        fetch(url)\n            .then(response => {\n                if (response.ok === false) {\n                    // Ui.log('warn', 'Ui:loadui:then1', `Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)()\n                    throw new Error(`Could not load '${url}'. Status ${response.status}, Error: ${response.statusText}`)\n                }\n\n                Ui.log('trace', 'Ui:loadui:then1', `Loaded '${url}'. Status ${response.status}, ${response.statusText}`)()\n                // Did we get json?\n                const contentType = response.headers.get('content-type')\n                if (!contentType || !contentType.includes('application/json')) {\n                    throw new TypeError(`Fetch '${url}' did not return JSON, ignoring`)\n                }\n                // Returns parsed json to next .then\n                return response.json()\n            })\n            .then(data => {\n                if (data !== undefined) {\n                    Ui.log('trace', 'Ui:loadui:then2', 'Parsed JSON successfully obtained')()\n                    // Call the _uiManager\n                    this._uiManager({ _ui: data })\n                    return true\n                }\n                return false\n            })\n            .catch(err => {\n                Ui.log('warn', 'Ui:loadui:catch', 'Error. ', err)()\n            })\n    } // --- end of loadui\n\n    /** Get standard data from a DOM node.\n     * @param {*} node DOM node to examine\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @returns {object} Standardised data object\n     */\n    nodeGet(node, cssSelector) {\n        const thisOut = {\n            id: node.id === '' ? undefined : node.id,\n            name: node.name,\n            children: node.childNodes.length,\n            type: node.nodeName,\n            attributes: undefined,\n\n            isUserInput: node.validity ? true : false, // eslint-disable-line no-unneeded-ternary\n            userInput: !node.validity ? undefined : { // eslint-disable-line multiline-ternary\n                value: node.value,\n                validity: undefined,\n                willValidate: node.willValidate,\n                valueAsDate: node.valueAsDate,\n                valueAsNumber: node.valueAsNumber,\n                type: node.type,\n            },\n        }\n\n        if (['UL', 'OL'].includes(node.nodeName)) {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} li`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'DL') {\n            const listEntries = this.document.querySelectorAll(`${cssSelector} dt`)\n            if (listEntries) {\n                thisOut.list = {\n                    'entries': listEntries.length\n                }\n            }\n        }\n        if (node.nodeName === 'TABLE') {\n            const bodyEntries = this.document.querySelectorAll(`${cssSelector} > tbody > tr`)\n            const headEntries = this.document.querySelectorAll(`${cssSelector} > thead > tr`)\n            const cols = this.document.querySelectorAll(`${cssSelector} > tbody > tr:last-child > *`)  // #eltest > table > tbody > tr:nth-child(3)\n            if (bodyEntries || headEntries || cols) {\n                thisOut.table = {\n                    'headRows': headEntries ? headEntries.length : 0,\n                    'bodyRows': bodyEntries ? bodyEntries.length : 0,\n                    'columns': cols ? cols.length : 0,\n                }\n            }\n        }\n        if (node.nodeName !== '#text' && node.attributes && node.attributes.length > 0) {\n            thisOut.attributes = {}\n            // @ts-ignore\n            for (const attrib of node.attributes) {\n                if (attrib.name !== 'id') {\n                    thisOut.attributes[attrib.name] = node.attributes[attrib.name].value\n                }\n                if (attrib.name === 'class') thisOut.classes = Array.from(node.classList)\n            }\n        }\n        if (node.nodeName === '#text') {\n            thisOut.text = node.textContent\n        }\n        if (node.validity) thisOut.userInput.validity = {}\n        for (const v in node.validity) {\n            thisOut.userInput.validity[v] = node.validity[v]\n        }\n\n        return thisOut\n    } // --- end of nodeGet --- //\n\n    /** Show a browser notification if possible. Returns a promise\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * Config ref: https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config object or simple message string\n     * @returns {Promise} Resolves on close or click event, returns the event.\n     */\n    async notification(config) {\n        if (typeof config === 'string') {\n            config = { body: config }\n        }\n        // Are notifications available?\n        if (typeof Notification === 'undefined') return Promise.reject(new Error('Notifications not available in this browser'))\n        // Do we have permission? If not, ask for permission\n        let permit = Notification.permission\n        if (permit === 'denied') {\n            return Promise.reject(new Error('Notifications not permitted by user')) // eslint-disable-line no-useless-return\n        } else if (permit === 'granted') {\n            return this._showNotification(config)\n        } else { // if (permit === 'default') {\n            permit = await Notification.requestPermission()\n            if (permit === 'granted') {\n                return this._showNotification(config)\n            }\n            return Promise.reject(new Error('Notifications not permitted by user'))\n        }\n    }\n\n    /** Remove All, 1 or more class names from an element\n     * @param {undefined|null|\"\"|string|string[]} classNames Single or array of classnames. If undefined, \"\" or null, remove all classes\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    removeClass(classNames, el) {\n        if (!classNames) {\n            el.removeAttribute('class')\n            return\n        }\n        if (!Array.isArray(classNames)) classNames = [classNames]\n        if (el) el.classList.remove(...classNames)\n    }\n\n    // TODO Add multi-slot\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        if (!component.slot) return\n        if (!el) return\n\n        // If DOMPurify is loaded, apply it now\n        if (this.window['DOMPurify']) component.slot = this.window['DOMPurify'].sanitize(component.slot)\n        // Set the component content to the msg.payload or the slot property\n        el.innerHTML = component.slot\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        if (!el) return\n        if (!component.slotMarkdown) return\n\n        // Convert from markdown to HTML\n        component.slotMarkdown = this.convertMarkdown(component.slotMarkdown)\n        // If DOMPurify is loaded, apply it now\n        component.slotMarkdown = this.sanitiseHTML(component.slotMarkdown)\n        // Set the component content to the the converted slotMarkdown property\n        el.innerHTML = component.slotMarkdown\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        if (!this.window['DOMPurify']) return html\n        return this.window['DOMPurify'].sanitize(html, { ADD_TAGS: this.sanitiseExtraTags, ADD_ATTR: this.sanitiseExtraAttribs })\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert // TODO - Allow notify to sit in corners rather than take over the screen\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) { // eslint-disable-line sonarjs/cognitive-complexity\n\n        //#region -- Check properties --\n\n        let content = ''\n        // Main body content\n        if (msg.payload && typeof msg.payload === 'string') content += `<div>${msg.payload}</div>`\n        if (ui.content) content += `<div>${ui.content}</div>`\n        // Toast wont show anyway if content is empty, may as well warn user\n        if (content === '') {\n            Ui.log(1, 'Ui:showDialog', 'Toast content is blank. Not shown.')()\n            return\n        }\n\n        // Use msg.topic as title if no title provided\n        if (!ui.title && msg.topic) ui.title = msg.topic\n        if (ui.title) content = `<p class=\"toast-head\">${ui.title}</p><p>${content}</p>`\n\n        // Allow for variants - @since v6.1 - don't bother - since this now sets CSS class, not tied to bootstrap-vue\n        // if ( !ui.variant || !['', 'primary', 'secondary', 'success', 'info', 'warn', 'warning', 'failure', 'error', 'danger'].includes(ui.variant)) ui.variant = ''\n\n        // Toasts auto-hide by default after 10s but alerts do not auto-hide\n        if (ui.noAutohide) ui.noAutoHide = ui.noAutohide\n        if (ui.noAutoHide) ui.autohide = !ui.noAutoHide\n        // If set, number of ms until toast is auto-hidden\n        if (ui.autoHideDelay) {\n            if (!ui.autohide) ui.autohide = true\n            ui.delay = ui.autoHideDelay\n        } else ui.autoHideDelay = 10000 // default = 10s\n        if (!Object.prototype.hasOwnProperty.call(ui, 'autohide')) ui.autohide = true\n\n        if (type === 'alert') {\n            ui.modal = true\n            ui.autohide = false\n            content = `<svg viewBox=\"0 0 192.146 192.146\" style=\"width:30;background-color:transparent;\"><path d=\"M108.186 144.372c0 7.054-4.729 12.32-12.037 12.32h-.254c-7.054 0-11.92-5.266-11.92-12.32 0-7.298 5.012-12.31 12.174-12.31s11.91 4.992 12.037 12.31zM88.44 125.301h15.447l2.951-61.298H85.46l2.98 61.298zm101.932 51.733c-2.237 3.664-6.214 5.921-10.493 5.921H12.282c-4.426 0-8.51-2.384-10.698-6.233a12.34 12.34 0 0 1 .147-12.349l84.111-149.22c2.208-3.722 6.204-5.96 10.522-5.96h.332c4.445.107 8.441 2.618 10.513 6.546l83.515 149.229c1.993 3.8 1.905 8.363-.352 12.066zm-10.493-6.4L96.354 21.454l-84.062 149.18h167.587z\" /></svg> ${content}`\n        }\n\n        //#endregion -- -- --\n\n        // Create a toaster container element if not already created - or get a ref to it\n        let toaster = this.document.getElementById('toaster')\n        if (toaster === null) {\n            toaster = this.document.createElement('div')\n            toaster.id = 'toaster'\n            toaster.title = 'Click to clear all notifcations'\n            toaster.setAttribute('class', 'toaster')\n            toaster.setAttribute('role', 'dialog')\n            toaster.setAttribute('arial-label', 'Toast message')\n            toaster.onclick = function () {\n                // @ts-ignore\n                toaster.remove()\n            }\n            this.document.body.insertAdjacentElement('afterbegin', toaster)\n        }\n\n        // Create a toast element. Would be nice to use <dialog> but that isn't well supported yet - come on Apple!\n        const toast = this.document.createElement('div')\n        toast.title = 'Click to clear this notifcation'\n        toast.setAttribute('class', `toast ${ui.variant ? ui.variant : ''} ${type}`)\n        toast.innerHTML = content\n        toast.setAttribute('role', 'alertdialog')\n        if (ui.modal) toast.setAttribute('aria-modal', ui.modal)\n        toast.onclick = function (evt) {\n            evt.stopPropagation()\n            toast.remove()\n            // @ts-ignore\n            if (toaster.childElementCount < 1) toaster.remove()\n        }\n\n        // TODO\n        if (type === 'alert') {\n            // newD.setAttribute('aria-labelledby', '')\n            // newD.setAttribute('aria-describedby', '')\n        }\n\n        toaster.insertAdjacentElement(ui.appendToast === true ? 'beforeend' : 'afterbegin', toast)\n\n        // Auto-hide\n        if (ui.autohide === true) {\n            setInterval(() => {\n                toast.remove()\n                // @ts-ignore\n                if (toaster.childElementCount < 1) toaster.remove()\n            }, ui.autoHideDelay)\n        }\n    } // --- End of showDialog ---\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        // Simulate a msg and process\n        let msg = {}\n        if (json._ui) msg = json\n        else msg._ui = json\n\n        console.log(this)\n        this._uiManager(msg)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        // The type cast below not really correct but it gets rid of the other typescript errors\n        const selection = /** @type {NodeListOf<HTMLInputElement>} */ (this.document.querySelectorAll(cssSelector))\n\n        const out = []\n\n        selection.forEach(node => {\n            // Specific property asked for ...\n            if (propName) {\n                if (propName === 'classes') propName = 'class'\n                // Try assuming the prop is an attribute first (will return null or \"\" if not present)\n                let prop = node.getAttribute(propName)\n                // If not an attribute, try getting as a property of the element\n                if (prop === undefined || prop === null) {\n                    try {\n                        prop = node[propName]\n                    } catch (error) {}\n                }\n                // We didn't find as either an attribute or a property\n                if (prop === undefined || prop === null) {\n                    // If 'value' was requested, return the innerText\n                    if (propName.toLowerCase() === 'value') out.push(node.innerText)\n                    else out.push(`Property '${propName}' not found`)\n                } else {\n                    const p = {}\n                    // Nightmare of different object types in a DOM Element!\n                    const cType = prop.constructor.name.toLowerCase()\n                    if (cType === 'namednodemap') {\n                        for (const key of prop) {\n                            // @ts-ignore\n                            p[key.name] = prop[key.name].value\n                        }\n                    } else if (!cType.includes('map')) { // Ordinary properties (not a mapped type)\n                        p[propName] = prop\n                    } else { // Other MAP types\n                        const p = {}\n                        // @ts-ignore\n                        for (const key in prop) {\n                            p[key] = prop[key]\n                        }\n                    }\n                    if (p.class) p.classes = Array.from(node.classList)\n                    out.push(p)\n                }\n            } else { // Otherwise, grab everything useful\n                out.push(this.nodeGet(node, cssSelector))\n            }\n        })\n\n        return out\n    } // --- end of uiGet --- //\n\n    /** External alias for _uiComposeComponent\n     * @param {*} el HTML Element to enhance\n     * @param {*} comp Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, comp) {\n        this._uiComposeComponent(el, comp)\n    }\n\n    //#endregion ---- -------- ----\n}\n\nmodule.exports = Ui\n\n// if (window) window['$ui'] = new Ui(window)\n\n// export Ui\n", "/* This is the Front-End JavaScript for uibuilder  in HTML Module form\n  It provides a number of global objects that can be used in your own javascript.\n  see the docs folder `./docs/uibuilder.module.md` for details of how to use this fully.\n\n  Please use the default index.js file for your own code and leave this as-is.\n  See Uib._meta for client version string\n\n  Copyright (c) 2022-2024 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n//#region --- Type Defs --- //\n/**\n * A string containing HTML markup\n * @typedef {string} html\n */\n//#endregion --- Type Defs --- //\n\n// We need the Socket.IO & ui libraries & the uib-var component  --- //\n// @ts-ignore - Note: Only works when using esbuild to bundle\nimport Ui from './ui'\nimport io from 'socket.io-client'\nimport UibVar from '../components/uib-var'\n\nconst version = '6.8.0-src'\n\n// TODO Add option to allow log events to be sent back to Node-RED as uib ctrl msgs\n//#region --- Module-level utility functions --- //\n\n// @ts-ignore Detect whether the loaded library is minified or not\nconst isMinified = !(/param/).test(function (param) { }) // eslint-disable-line no-unused-vars\n\n//#region --- print/console - debugging output functions --- //\n\n/** Default log level - Error & Warn */\nlet logLevel = isMinified ? 0 : 1  // When using minified lib, assume production and only log errors otherwise also log warn\n// function changeLogLevel(level) {\n//     logLevel = level\n//     console.trace = logLevel < 4 ? function(){} : console.trace\n//     console.debug = logLevel < 2 ? function(){} : console.debug\n//     if ( logLevel < 1 ) {\n//         console.log = console.group = console.groupEnd =  function(){}\n//     }\n// }\n\n// Experimental\nconst LOG_STYLES = {\n    // 0\n    error: {\n        css: 'background: red; color: black;',\n        txtCss: 'color: red; ',\n        pre: '\u26D4 ',\n        console: 'error',  // or trace\n    },\n    // 1\n    warn: {\n        css: 'background: darkorange; color: black;',\n        txtCss: 'color: darkorange; ',\n        pre: '\u26A0 ',\n        console: 'warn',\n    },\n    // 2\n    info: {\n        css: 'background: aqua; color: black;',\n        txtCss: 'color: aqua;',\n        pre: '\u2757 ',\n        console: 'info',\n    },\n    // 3\n    log: {\n        css: 'background: grey; color: yellow;',\n        txtCss: 'color: grey;',\n        pre: '',\n        console: 'log',\n    },\n    // 4\n    debug: {\n        css: 'background: chartreuse; color: black;',\n        txtCss: 'color: chartreuse;',\n        pre: '',\n        console: 'debug',\n    },\n    // 5\n    trace: {\n        css: 'background: indigo; color: yellow;',\n        txtCss: 'color: hotpink;',\n        pre: '',\n        console: 'log',\n    },\n\n    names: ['error', 'warn', 'info', 'log', 'debug', 'trace'],\n    reset: 'color: inherit;',\n    head: 'font-weight:bold; font-style:italic;',\n    level: 'font-weight:bold; border-radius: 3px; padding: 2px 5px; display:inline-block;',\n}\n/** Custom logging. e.g. log(2, 'here:there', 'jiminy', {fred:'jim'})()\n * @returns {Function} Log function @example log(2, 'here:there', 'jiminy', {fred:'jim'})()\n */\nfunction log() {\n    // Get the args\n    const args = Array.prototype.slice.call(arguments)\n\n    // 1st arg is the log level/type\n    let level = args.shift()\n    let strLevel\n    switch (level) {\n        case 'trace':\n        case 5: {\n            if (logLevel < 5) break\n            level = 5 // make sure level is numeric\n            strLevel = 'trace'\n            break\n        }\n\n        case 'debug':\n        case 4: {\n            if (logLevel < 4) break\n            level = 4\n            strLevel = 'debug'\n            break\n        }\n\n        case 'log':\n        case 3: {\n            if (logLevel < 3) break\n            level = 3\n            strLevel = 'log'\n            break\n        }\n\n        case 'info':\n        case '':\n        case 2: {\n            if (logLevel < 2) break\n            level = 2\n            strLevel = 'info'\n            break\n        }\n\n        case 'warn':\n        case 1: {\n            if (logLevel < 1) break\n            level = 1\n            strLevel = 'warn'\n            break\n        }\n\n        case 'error':\n        case 'err':\n        case 0: {\n            if (logLevel < 0) break\n            level = 0\n            strLevel = 'error'\n            break\n        }\n\n        default: {\n            level = -1\n            break\n        }\n\n    }\n\n    // If set to something unknown, no log output\n    if (strLevel === undefined) return function () { }\n\n    // 2nd arg is a heading that will be colour highlighted\n    const head = args.shift()\n\n    // Bind back to console.log (could use console[strLevel] but some levels ignore some formatting, use console.xxx directly or dedicated fn)\n    return Function.prototype.bind.call(\n        console[LOG_STYLES[strLevel].console],\n        console,\n        `%c${LOG_STYLES[strLevel].pre}${strLevel}%c [${head}]`, `${LOG_STYLES.level} ${LOG_STYLES[strLevel].css}`, `${LOG_STYLES.head} ${LOG_STYLES[strLevel].txtCss}`,\n        ...args\n    )\n}\n//#endregion\n\n/** A hack to dynamically load a remote module and wait until it is loaded\n * @param {string} url The URL of the module to load\n * @returns {object|null} Either the result object or null (if the load fails)\n */\n// function loadModule(url) { // eslint-disable-line no-unused-vars\n//     let done\n\n//     import(url)\n//         .then(res => {\n//             log('debug', '>> then >>', res)()\n//             done = res\n//         })\n//         .catch(err => {\n//             console.error(`[uibuilder:loadModule] Could not load module ${url}`, err)\n//             done = null\n//         })\n\n//     //  eslint-disable-next-line no-empty\n//     while (!done) { } // eslint-disable-line no-unmodified-loop-condition\n\n//     return done\n// }\n\n/** Makes a null or non-object into an object\n * If not null, moves \"thing\" to {payload:thing}\n *\n * @param {*} thing Thing to check\n * @param {string} [property='payload'] property that \"thing\" is moved to if not null and not an object\n * @returns {!object} _\n */\nfunction makeMeAnObject(thing, property) {\n    if (!property) property = 'payload'\n    if (typeof property !== 'string') {\n        log('warn', 'uibuilderfe:makeMeAnObject', `WARNING: property parameter must be a string and not: ${typeof property}`)()\n        property = 'payload'\n    }\n    let out = {}\n    if ( thing !== null && thing.constructor.name === 'Object' ) {\n        out = thing\n    } else if (thing !== null) {\n        out[property] = thing\n    }\n    return out\n} // --- End of make me an object --- //\n\n/** Joins all arguments as a URL string\n * see http://stackoverflow.com/a/28592528/3016654\n * since v1.0.10, fixed potential double // issue\n * arguments {string} URL fragments\n * @returns {string} _\n */\nfunction urlJoin() {\n    const paths = Array.prototype.slice.call(arguments)\n    const url = '/' + paths.map(function (e) {\n        return e.replace(/^\\/|\\/$/g, '')\n    })\n        .filter(function (e) {\n            return e\n        })\n        .join('/')\n    return url.replace('//', '/')\n} // ---- End of urlJoin ---- //\n\n/** Convert JSON to Syntax Highlighted HTML\n * @param {object} json A JSON/JavaScript Object\n * @returns {html} Object reformatted as highlighted HTML\n */\nfunction syntaxHighlight(json) {\n    if (json === undefined) {\n        json = '<span class=\"undefined\">undefined</span>'\n    } else {\n        try {\n            json = JSON.stringify(json, undefined, 4)\n            // json = json.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;') // eslint-disable-line newline-per-chained-call\n            json = json.replace(/(\"(\\\\u[a-zA-Z0-9]{4}|\\\\[^u]|[^\\\\\"])*\"(\\s*:)?|\\b(true|false|null)\\b|-?\\d+(?:\\.\\d*)?(?:[eE][+-]?\\d+)?)/g, function (match) { // eslint-disable-line prefer-named-capture-group\n                let cls = 'number'\n                if ((/^\"/).test(match)) {\n                    if ((/:$/).test(match)) {\n                        cls = 'key'\n                    } else {\n                        cls = 'string'\n                    }\n                } else if ((/true|false/).test(match)) {\n                    cls = 'boolean'\n                } else if ((/null/).test(match)) {\n                    cls = 'null'\n                }\n                return `<span class=\"${cls}\">${match}</span>`\n            })\n        } catch (e) {\n            json = `Syntax Highlight ERROR: ${e.message}`\n        }\n    }\n    return json\n}\n\n/** msg._ui handling functions */\nconst _ui = new Ui(window, log, syntaxHighlight)\n\n//#endregion --- Module-level utility functions --- //\n\n/** Define and export the Uib class - note that an instance of the class is also exported in the wrap-up\n * @typicalname uibuilder\n */\nexport const Uib = class Uib {\n\n    //#region --- Static variables ---\n    static _meta = {\n        version: version,\n        type: 'module',\n        displayName: 'uibuilder',\n    }\n    //#endregion ---- ---- ---- ----\n\n    //#region private class vars\n\n    // How many times has the loaded instance connected to Socket.IO (detect if not a new load?)\n    connectedNum = 0\n    // event listener callbacks by property name\n    // #events = {}\n    // Socket.IO channel names\n    _ioChannels = { control: 'uiBuilderControl', client: 'uiBuilderClient', server: 'uiBuilder' }\n    /** setInterval holder for pings @type {function|undefined} */\n    #pingInterval\n    // onChange event callbacks\n    #propChangeCallbacks = {}\n    // onTopic event callbacks\n    #msgRecvdByTopicCallbacks = {}\n    // Is Vue available?\n    isVue = false\n    // What version? Set in startup if Vue is loaded. Won't always work\n    vueVersion = undefined\n    /** setInterval id holder for Socket.IO checkConnect\n     * @type {number|null}\n     */\n    #timerid = null\n    // Holds the reference ID for the internal msg change event handler so that it can be cancelled\n    #MsgHandler\n    // Placeholder for io.socket - can't make a # var until # fns allowed in all browsers\n    _socket\n    // Placeholder for an observer that watches the whole DOM for changes - can't make a # var until # fns allowed in all browsers\n    _htmlObserver\n    // Has showMsg been turned on?\n    #isShowMsg = false\n    // Has showStatus been turned on?\n    #isShowStatus = false\n    // If true, URL hash changes send msg back to node-red. Controlled by watchUrlHash()\n    #sendUrlHash = false\n    // Externally accessible command functions (NB: Case must match) - remember to update _uibCommand for new commands\n    #extCommands = [\n        'elementExists', 'get', 'getManagedVarList', 'getWatchedVars', 'htmlSend', 'include',\n        'navigate', 'scrollTo', 'set', 'showMsg', 'showStatus', 'uiGet', 'uiWatch', 'watchUrlHash',\n    ]\n\n    /** @type {{[key: string]: string}} Managed uibuilder variables */\n    #managedVars = {}\n\n    // What status variables to show via showStatus()\n    #showStatus = {\n        online: { 'var': 'online', 'label': 'Online?', 'description': 'Is the browser online?', },\n        ioConnected: { 'var': 'ioConnected', 'label': 'Socket.IO connected?', 'description': 'Is Socket.IO connected?', },\n        connectedNum: { 'var': 'connectedNum', 'label': '# reconnections', 'description': 'How many times has Socket.IO had to reconnect since last page load?', },\n\n        clientId: { 'var': 'clientId', 'label': 'Client ID', 'description': 'Static client unique id set in Node-RED. Only changes when browser is restarted.', },\n        tabId: { 'var': 'tabId', 'label': 'Browser tab ID', 'description': 'Static unique id for the browser\\'s current tab', },\n        cookies: { 'var': 'cookies', 'label': 'Cookies', 'description': 'Cookies set in Node-RED', },\n        httpNodeRoot: { 'var': 'httpNodeRoot', 'label': 'httpNodeRoot', 'description': 'From Node-RED\\' settings.js, affects URL\\'s. May be wrong for pages in sub-folders', },\n        pageName: { 'var': 'pageName', 'label': 'Page name', 'description': 'Actual name of this page', },\n\n        ioNamespace: { 'var': 'ioNamespace', 'label': 'SIO namespace', 'description': 'Socket.IO namespace - unique to each uibuilder node instance', },\n        // ioPath: { 'var': 'ioPath', 'label': 'SIO path', 'description': '', }, // no longer needed in the modern client\n        socketError: { 'var': 'socketError', 'label': 'Socket error', 'description': 'If the Socket.IO connection has failed, says why', },\n\n        msgsSent: { 'var': 'msgsSent', 'label': '# msgs sent', 'description': 'How many standard messages have been sent to Node-RED?', },\n        msgsReceived: { 'var': 'msgsReceived', 'label': '# msgs received', 'description': 'How many standard messages have been received from Node-RED?', },\n        msgsSentCtrl: { 'var': 'msgsSentCtrl', 'label': '# control msgs sent', 'description': 'How many control messages have been sent to Node-RED?', },\n        msgsCtrlReceived: { 'var': 'msgsCtrlReceived', 'label': '# control msgs received', 'description': 'How many control messages have been received from Node-RED?', },\n        originator: { 'var': 'originator', 'label': 'Node Originator', 'description': 'If the last msg from Node-RED was from a `uib-sender` node, this will be its node id so that messasges can be returned to it', },\n        topic: { 'var': 'topic', 'label': 'Default topic', 'description': 'Optional default topic to be included in outgoing standard messages', },\n\n        started: { 'var': 'started', 'label': 'Has uibuilder client started?', 'description': 'Whether `uibuilder.start()` ran successfully. This should self-run and should not need to be run manually', },\n        version: { 'var': 'version', 'label': 'uibuilder client version', 'description': 'The version of the loaded uibuilder client library', },\n        serverTimeOffset: { 'var': 'serverTimeOffset', 'label': 'Server time offset (Hrs)', 'description': 'The number of hours difference between the Node-red server and the client', },\n    }\n\n    // Track ui observers (see uiWatch)\n    #uiObservers = {}\n\n    //#endregion\n\n    //#region public class vars\n\n    // TODO Move to proper getters\n    //#region ---- Externally read-only (via .get method) ---- //\n    // version - moved to _meta\n    /** Client ID set by uibuilder on connect */\n    clientId = ''\n    /** The collection of cookies provided by uibuilder */\n    cookies = {}\n    /** Copy of last control msg object received from sever */\n    ctrlMsg = {}\n    /** Is Socket.IO client connected to the server? */\n    ioConnected = false\n    // Is the browser tab containing this page visible or not?\n    isVisible = false\n    // Remember the last page (re)load/navigation type: navigate, reload, back_forward, prerender\n    lastNavType = ''\n    /** Last std msg received from Node-RED */\n    msg = {}\n    /** number of messages sent to server since page load */\n    msgsSent = 0\n    /** number of messages received from server since page load */\n    msgsReceived = 0\n    /** number of control messages sent to server since page load */\n    msgsSentCtrl = 0\n    /** number of control messages received from server since page load */\n    msgsCtrlReceived = 0\n    /** Is the client online or offline? */\n    online = navigator.onLine\n    /** last control msg object sent via uibuilder.send() @since v2.0.0-dev3 */\n    sentCtrlMsg = {}\n    /** last std msg object sent via uibuilder.send() */\n    sentMsg = {}\n    /** placeholder to track time offset from server, see fn socket.on(ioChannels.server ...) */\n    serverTimeOffset = null\n    /** placeholder for a socket error message */\n    socketError = null\n    // tab identifier from session storage\n    tabId = ''\n    // Actual name of current page (set in constructor)\n    pageName = null\n    // Is the DOMPurify library loaded? Updated in start()\n    purify = false\n    // Is the Markdown-IT library loaded? Updated in start()\n    markdown = false\n    // Current URL hash. Initial set is done from start->watchHashChanges via a set to make it watched\n    urlHash = location.hash\n    //#endregion ---- ---- ---- ---- //\n\n    // TODO Move to proper getters/setters\n    //#region ---- Externally Writable (via .set method, read via .get method) ---- //\n    /** Default originator node id - empty string by default\n     * @type {string}\n     */\n    originator = ''\n    /** Default topic - used by send if set and no topic provided\n     * @type {(string|undefined)}\n     */\n    topic = undefined\n    //#endregion ---- ---- ---- ---- //\n\n    //#region ---- These are unlikely to be needed externally: ----\n    autoSendReady = true\n    httpNodeRoot = '' // Node-RED setting (via cookie)\n    ioNamespace = ''\n    ioPath = ''\n    retryFactor = 1.5       // starting delay factor for subsequent reconnect attempts\n    retryMs = 2000          // starting retry ms period for manual socket reconnections workaround\n    storePrefix = 'uib_'    // Prefix for all uib-related localStorage\n    started = false\n    // NOTE: These can only change when a client (re)connects\n    socketOptions = {\n        path: this.ioPath,\n        transports: ['polling', 'websocket'],\n        // Using callback so that they are updated automatically on (re)connect\n        // Only put things in here that will be valid for a websocket connected session\n        auth: (cb) => {\n            cb({ // eslint-disable-line n/no-callback-literal\n                clientVersion: version,\n                clientId: this.clientId,\n                pathName: window.location.pathname,\n                urlParams: Object.fromEntries(new URLSearchParams(location.search)),\n                pageName: this.pageName,\n                tabId: this.tabId,\n                lastNavType: this.lastNavType,\n                connectedNum: ++this.connectedNum,\n                // Used to calculate the diff between the server and client connection timestamps - reported if >1 minute\n                browserConnectTimestamp: (new Date()).toISOString(),\n            })\n        },\n        transportOptions: {\n            // Can only set headers when polling\n            polling: {\n                extraHeaders: {\n                    'x-clientid': `${Uib._meta.displayName}; ${Uib._meta.type}; ${Uib._meta.version}; ${this.clientId}`,\n                }\n            },\n        },\n    }\n    //#endregion -- not external --\n\n    //#endregion --- End of variables ---\n\n    //#region ------- Getters and Setters ------- //\n\n    // Change logging level dynamically (affects both console. and print.)\n    set logLevel(level) { logLevel = level; console.log('%c\u2757 info%c [logLevel]', `${LOG_STYLES.level} ${LOG_STYLES.info.css}`, `${LOG_STYLES.head} ${LOG_STYLES.info.txtCss}`, `Set to ${level} (${LOG_STYLES.names[level]})`) /* changeLogLevel(level)*/ }\n    get logLevel() { return logLevel }\n\n    get meta() { return Uib._meta }\n\n    /** Function to set uibuilder properties to a new value - works on any property except _* or #*\n     * Also triggers any event listeners.\n     * Example: this.set('msg', {topic:'uibuilder', payload:42});\n     * @param {string} prop Any uibuilder property who's name does not start with a _ or #\n     * @param {*} val The set value of the property or a string declaring that a protected property cannot be changed\n     * @param {boolean} [store] If true, the variable is also saved to the browser localStorage if possible\n     * @param {boolean} [autoload] If true & store is true, on load, uib will try to restore the value from the store automatically\n     * @returns {*} Input value\n     */\n    set(prop, val, store = false, autoload = false) {\n        // Check for excluded properties - we don't want people to set these\n        // if (this.#excludedSet.indexOf(prop) !== -1) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:set', `Cannot use set() on protected property \"${prop}\"`)()\n            return `Cannot use set() on protected property \"${prop}\"`\n        }\n\n        // We must add the var to the uibuilder object\n        this[prop] = val\n\n        // Keep track of all managed variables\n        this.#managedVars[prop] = prop\n\n        // If requested, save to store\n        if (store === true) this.setStore(prop, val, autoload)\n\n        log('trace', 'Uib:set', `prop set - prop: ${prop}, val: `, val, ` store: ${store}, autoload: ${autoload}`)()\n\n        // Trigger this prop's event callbacks (listeners which are set by this.onChange)\n        // this.emit(prop, val)\n\n        // trigger an event on the prop name, pass both the name and value to the event details\n        this._dispatchCustomEvent('uibuilder:propertyChanged', { 'prop': prop, 'value': val, 'store': store, 'autoload': autoload })\n\n        return val\n    }\n\n    /** Function to get the value of a uibuilder property\n     * Example: uibuilder.get('msg')\n     * @param {string} prop The name of the property to get as long as it does not start with a _ or #\n     * @returns {*|undefined} The current value of the property\n     */\n    get(prop) {\n        if (prop.startsWith('_') || prop.startsWith('#')) {\n            log('warn', 'Uib:get', `Cannot use get() on protected property \"${prop}\"`)()\n            return\n        }\n        if (prop === 'version') return Uib._meta.version\n        if (prop === 'msgsCtrl') return this.msgsCtrlReceived\n        if (prop === 'reconnections') return this.connectedNum\n        if (this[prop] === undefined) {\n            log('warn', 'Uib:get', `get() - property \"${prop}\" is undefined`)()\n        }\n        return this[prop]\n    }\n\n    /** Write to localStorage if possible. console error output if can't write\n     * Also uses this.storePrefix\n     * @example\n     *   uibuilder.setStore('fred', 42)\n     *   console.log(uibuilder.getStore('fred'))\n     * @param {string} id localStorage var name to be used (prefixed with 'uib_')\n     * @param {*} value value to write to localstore\n     * @param {boolean} [autoload] If true, on load, uib will try to restore the value from the store\n     * @returns {boolean} True if succeeded else false\n     */\n    setStore(id, value, autoload = false) {\n        let autoVars = {}\n        if (autoload === true) {\n            try {\n                autoVars = this.getStore('_uibAutoloadVars') || {}\n            } catch (e) {}\n        }\n        if (typeof value === 'object') {\n            try {\n                value = JSON.stringify(value)\n            } catch (e) {\n                log('error', 'Uib:setStore', 'Cannot stringify object, not storing. ', e)()\n                return false\n            }\n        }\n        try {\n            localStorage.setItem(this.storePrefix + id, value)\n            if (autoload) {\n                autoVars[id] = id\n                try {\n                    localStorage.setItem(this.storePrefix + '_uibAutoloadVars', JSON.stringify(autoVars))\n                } catch (e) {\n                    log('error', 'Uib:setStore', 'Cannot save autoload list. ', e)()\n                }\n            }\n            this._dispatchCustomEvent('uibuilder:propertyStored', { 'prop': id, 'value': value, 'autoload': autoload })\n            return true\n        } catch (e) {\n            log('error', 'Uib:setStore', 'Cannot write to localStorage. ', e)()\n            return false\n        }\n    } // --- end of setStore --- //\n\n    /** Attempt to get and re-hydrate a key value from localStorage\n     * Note that all uib storage is automatically prefixed using this.storePrefix\n     * @param {*} id The key of the value to attempt to retrieve\n     * @returns {*|null|undefined} The re-hydrated value of the key or null if key not found, undefined on error\n     */\n    getStore(id) {\n        try {\n            // @ts-ignore\n            return JSON.parse(localStorage.getItem(this.storePrefix + id))\n        } catch (e) { }\n        try {\n            return localStorage.getItem(this.storePrefix + id)\n        } catch (e) {\n            return undefined\n        }\n    }\n\n    /** Remove a given id from the uib keys in localStorage\n     * @param {*} id The key to remove\n     */\n    removeStore(id) {\n        try {\n            localStorage.removeItem(this.storePrefix + id)\n        } catch (e) { }\n    }\n\n    /** Returns a list of uibuilder properties (variables) that can be watched with onChange\n     * @returns {{[key: string]: string}} List of uibuilder managed variables\n     */\n    getManagedVarList() {\n        return this.#managedVars\n    }\n\n    getWatchedVars() {\n        return Object.keys(this.#propChangeCallbacks)\n    }\n\n    //#endregion ------- -------- ------- //\n\n    //#region ------- Our own event handling system ---------- //\n\n    // TODO Add option to send event details back to Node-RED as uib ctrl msg\n    /** Standard fn to create a custom event with details & dispatch it\n     * @param {string} title The event name\n     * @param {*} details Any details to pass to event output\n     */\n    _dispatchCustomEvent(title, details) {\n        const event = new CustomEvent(title, { detail: details })\n        document.dispatchEvent(event)\n    }\n\n    // See the this.#propChangeCallbacks & msgRecvdByTopicCallbacks private vars\n\n    /** Register on-change event listeners for uibuilder tracked properties\n     * Make it possible to register a function that will be run when the property changes.\n     * Note that you can create listeners for non-existant properties\n     * @example: uibuilder.onChange('msg', (msg) => { console.log('uibuilder.msg changed! It is now: ', msg) })\n     *\n     * @param {string} prop The property of uibuilder that we want to monitor\n     * @param {Function} callback The function that will run when the property changes, parameter is the new value of the property after change\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelChange if you need to remove a listener\n     */\n    onChange(prop, callback) {\n        // Note: Property does not have to exist yet\n\n        // console.debug(`[Uib:onchange] pushing new callback (event listener) for property: ${prop}`)\n\n        // Create a new array or add to the array of callback functions for the property in the events object\n        // if (this.#events[prop]) {\n        //     this.#events[prop].push(callback)\n        // } else {\n        //     this.#events[prop] = [callback]\n        // }\n\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#propChangeCallbacks[prop]) this.#propChangeCallbacks[prop] = { _nextRef: 1 }\n        else this.#propChangeCallbacks[prop]._nextRef++\n\n        const nextCbRef = this.#propChangeCallbacks[prop]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const propChangeCallback = this.#propChangeCallbacks[prop][nextCbRef] = function propChangeCallback(e) {\n            // If the prop name matches the 1st arg in the onChange fn:\n            if (prop === e.detail.prop) {\n                const value = e.detail.value\n                // console.warn('[Uib:onChange:evt] uibuilder:propertyChanged. ', e.detail)\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(value, value)\n            }\n        }\n\n        document.addEventListener('uibuilder:propertyChanged', propChangeCallback)\n\n        return nextCbRef\n    } // ---- End of onChange() ---- //\n\n    cancelChange(prop, cbRef) {\n        document.removeEventListener('uibuilder:propertyChanged', this.#propChangeCallbacks[prop][cbRef])\n        delete this.#propChangeCallbacks[prop][cbRef]\n        // this.#propChangeCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Register a change callback for a specific msg.topic\n     * Similar to onChange but more convenient if needing to differentiate by msg.topic.\n     * @example: let otRef = uibuilder.onTopic('mytopic', function(){ console.log('Received a msg with msg.topic=`mytopic`. msg: ', this) })\n     * To cancel a change listener: uibuilder.cancelTopic('mytopic', otRef)\n     *\n     * @param {string} topic The msg.topic we want to listen for\n     * @param {Function} callback The function that will run when an appropriate msg is received. `this` inside the callback as well as the cb's single argument is the received msg.\n     * @returns {number} A reference to the callback to cancel, save and pass to uibuilder.cancelTopic if you need to remove a listener\n     */\n    onTopic(topic, callback) {\n        // Make sure we have an object to receive the saved callback, update the latest reference number\n        if (!this.#msgRecvdByTopicCallbacks[topic]) this.#msgRecvdByTopicCallbacks[topic] = { _nextRef: 1 }\n        else this.#msgRecvdByTopicCallbacks[topic]._nextRef++\n\n        const nextCbRef = this.#msgRecvdByTopicCallbacks[topic]._nextRef\n\n        // Register the callback function. It is saved so that we can remove the event listener if we need to\n        const msgRecvdEvtCallback = this.#msgRecvdByTopicCallbacks[topic][nextCbRef] = function msgRecvdEvtCallback(e) {\n            const msg = e.detail\n            // console.log('[Uib:onTopic:evt] uibuilder:stdMsgReceived where topic matches. ', e.detail)\n            if (msg.topic === topic) {\n                // Set the callback fn's `this` and its single argument to the msg\n                callback.call(msg, msg)\n            }\n        }\n\n        document.addEventListener('uibuilder:stdMsgReceived', msgRecvdEvtCallback)\n\n        return nextCbRef\n    }\n\n    cancelTopic(topic, cbRef) {\n        document.removeEventListener('uibuilder:stdMsgReceived', this.#msgRecvdByTopicCallbacks[topic][cbRef])\n        delete this.#msgRecvdByTopicCallbacks[topic][cbRef]\n        // this.#msgRecvdCallbacks[topic]._nextRef-- // Don't bother, let the ref# increase\n    }\n\n    /** Trigger event listener for a given property\n     * Called when uibuilder.set is used\n     *\n     * @param {*} prop The property for which to run the callback functions\n     * arguments: Additional arguments contain the value to pass to the event callback (e.g. newValue)\n     */\n    // emit(prop) {\n    //     var evt = this.#events[prop]\n    //     if (!evt) {\n    //         return\n    //     }\n    //     var args = Array.prototype.slice.call(arguments, 1)\n    //     for (var i = 0; i < evt.length; i++) {\n    //         evt[i].apply(this, args)\n    //     }\n    //     log('trace', 'Uib:emit', `${evt.length} listeners run for prop ${prop} `)()\n    // }\n\n    /** Forcibly removes all event listeners from the events array\n     * Use if you need to re-initialise the environment\n     */\n    // clearEventListeners() {\n    //     this.#events = []\n    // } // ---- End of clearEventListeners() ---- //\n\n    /** Clear a single property event listeners\n     * @param {string} prop The property of uibuilder for which we want to clear the event listener\n     */\n    // clearListener(prop) {\n    //     if (this.#events[prop]) delete this.#events[prop]\n    // }\n\n    //#endregion ---------- End of event handling system ---------- //\n\n    //#region ------- General Utility Functions -------- //\n\n    /** Check supplied msg from server for a timestamp - if received, work out & store difference to browser time\n     * @param {object} receivedMsg A message object recieved from Node-RED\n     * @returns {void} Updates self.serverTimeOffset if different to previous value\n     */\n    _checkTimestamp(receivedMsg) {\n        if (Object.prototype.hasOwnProperty.call(receivedMsg, 'serverTimestamp')) {\n            const serverTimestamp = new Date(receivedMsg.serverTimestamp)\n            // @ts-ignore\n            const offset = Math.round(((new Date()) - serverTimestamp) / 3600000) // in ms /3.6m to get hours\n            if (offset !== this.serverTimeOffset) {\n                log('trace', `Uib:checkTimestamp:${this._ioChannels.server} (server)`, `Offset changed to: ${offset} from: ${this.serverTimeOffset}`)()\n                this.set('serverTimeOffset', offset)\n            }\n        }\n    }\n\n    /** Set up an event listener to watch for hash changes\n     * and set the watchable urlHash variable\n     */\n    _watchHashChanges() {\n        this.set('urlHash', location.hash)\n        window.addEventListener('hashchange', (event) => {\n            this.set('urlHash', location.hash)\n            if (this.#sendUrlHash === true) {\n                this.send({ topic: 'hashChange', payload: location.hash, newHash: this.keepHashFromUrl(event.newURL), oldHash: this.keepHashFromUrl(event.oldURL) })\n            }\n        })\n    }\n\n    /** Copies a uibuilder variable to the browser clipboard\n     * @param {string} varToCopy The name of the uibuilder variable to copy to the clipboard\n     */\n    copyToClipboard(varToCopy) {\n        let data = ''\n        try {\n            data = JSON.stringify(this.get(varToCopy))\n        } catch (e) {\n            log('error', 'copyToClipboard', `Could not copy \"${varToCopy}\" to clipboard.`, e.message)()\n        }\n        navigator.clipboard.writeText(data)\n    } // --- End of copyToClipboard --- //\n\n    /** Does the chosen CSS Selector currently exist?\n     * Automatically sends a msg back to Node-RED unless turned off.\n     * @param {string} cssSelector Required. CSS Selector to examine for visibility\n     * @param {boolean} [msg] Optional, default=true. If true also sends a message back to Node-RED\n     * @returns {boolean} True if the element exists\n     */\n    elementExists(cssSelector, msg = true) {\n        const el = document.querySelector(cssSelector)\n\n        let exists = false\n        if (el !== null) exists = true\n\n        if (msg === true) {\n            this.send({\n                payload: exists,\n                info: `Element \"${cssSelector}\" ${exists ? 'exists' : 'does not exist'}`\n            })\n        }\n\n        return exists\n    } // --- End of elementExists --- //\n\n    /** Format a number using the INTL standard library - compatible with uib-var filter function\n     * @param {number} value Number to format\n     * @param {number} decimalPlaces Number of decimal places to include. Default=no default\n     * @param {string} intl standard locale spec, e.g. \"ja-JP\" or \"en-GB\". Default=navigator.language\n     * @param {object} opts INTL library options object. Optional\n     * @returns {string} formatted number\n     * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/toLocaleString\n     */\n    formatNumber(value, decimalPlaces, intl, opts) {\n        if (isNaN(value)) {\n            log('error', 'formatNumber', `Value must be a number. Value type: \"${typeof value}\"`)()\n            return 'NaN'\n        }\n        if (!opts) opts = {}\n        if (!intl) intl = navigator.language ? navigator.language : 'en-GB'\n        if (decimalPlaces) {\n            opts.minimumFractionDigits = decimalPlaces\n            opts.maximumFractionDigits = decimalPlaces\n        }\n        let out\n        try {\n            out = Number(value).toLocaleString(intl, opts)\n        } catch (e) {\n            log('error', 'formatNumber', `${e.message}. value=${value}, dp=${decimalPlaces}, intl=\"${intl}\", opts=${JSON.stringify(opts)}`)()\n            return 'NaN'\n        }\n        return out\n    }\n\n    /** Only keep the URL Hash & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return '#' + url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    log() {\n        log(...arguments)()\n    }\n\n    /** Navigate to a new page or a new route (hash)\n     * @param {string} url URL to navigate to. Can be absolute or relative (to current page) or just a hash for a route change\n     * @returns {Location} The new window.location string\n     */\n    navigate(url) {\n        if (url) window.location.href = url\n        return window.location\n    }\n\n    /** Set the default originator. Set to '' to ignore. Used with uib-sender.\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    setOriginator(originator = '') {\n        this.set('originator', originator)\n    } // ---- End of setOriginator ---- //\n\n    /** HTTP Ping/Keep-alive - makes a call back to uibuilder's ExpressJS server and receives a 204 response\n     * Can be used to keep sessions alive.\n     * @example\n     *   uibuilder.setPing(2000) // repeat every 2 sec. Re-issue with ping(0) to turn off repeat.\n     *   uibuilder.onChange('ping', function(data) {\n     *      console.log('pinger', data)\n     *   })\n     * @param {number} ms Repeat interval in ms\n     */\n    setPing(ms = 0) {\n        const oReq = new XMLHttpRequest()\n        oReq.addEventListener('load', () => {\n            const headers = (oReq.getAllResponseHeaders()).split('\\r\\n')\n            const elapsedTime = Number(new Date()) - Number((oReq.responseURL.split('='))[1])\n            this.set('ping', {\n                success: !!((oReq.status === 201) || (oReq.status === 204)), // true if one of the listed codes else false\n                status: oReq.status,\n                headers: headers,\n                url: oReq.responseURL,\n                elapsedTime: elapsedTime,\n            })\n        })\n\n        if (this.#pingInterval) {\n            clearInterval(this.#pingInterval)\n            this.#pingInterval = undefined\n        }\n\n        oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n        oReq.send()\n\n        if (ms > 0) {\n            this.#pingInterval = setInterval(() => {\n                oReq.open('GET', `${this.httpNodeRoot}/uibuilder/ping?t=${Number(new Date())}`)\n                oReq.send()\n            }, ms)\n        }\n    } // ---- End of ping ---- //\n\n    /** Convert JSON to Syntax Highlighted HTML\n     * @param {object} json A JSON/JavaScript Object\n     * @returns {html} Object reformatted as highlighted HTML\n     */\n    syntaxHighlight(json) {\n        return syntaxHighlight(json)\n    } // --- End of syntaxHighlight --- //\n\n    /** Returns true/false or a default value for truthy/falsy and other values\n     * @param {string|number|boolean|*} val The value to test\n     * @param {any} deflt Default value to use if the value is not truthy/falsy\n     * @returns {boolean|any} The truth! Or the default\n     */\n    truthy(val, deflt) {\n        let ret\n        if (['on', 'On', 'ON', 'true', 'True', 'TRUE', '1', true, 1].includes(val)) ret = true\n        else if (['off', 'Off', 'OFF', 'false', 'False', 'FALSE', '0', false, 0].includes(val)) ret = false\n        else ret = deflt\n        return ret\n    }\n\n    /** Turn on/off/toggle sending URL hash changes back to Node-RED\n     * @param {string|number|boolean|undefined} [toggle] Optional on/off/etc\n     * @returns {boolean} True if we will send a msg to Node-RED on a hash change\n     */\n    watchUrlHash(toggle) {\n        this.#sendUrlHash = this.truthy(toggle, this.#sendUrlHash !== true)\n        return this.#sendUrlHash\n    }\n\n    /** DEPRECATED FOR NOW - wasn't working properly.\n     * Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.\n     * Requires IntersectionObserver (available to all mainstream browsers from early 2019)\n     * Automatically sends a msg back to Node-RED.\n     * Requires the element to already exist.\n     * @returns {false} False if not visible\n     */\n    elementIsVisible() {\n        const info = 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'\n        log('error', 'uib:elementIsVisible', info)()\n        this.send({ payload: 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex' })\n        return false\n    } // --- End of elementIsVisible --- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- UI handlers --------- //\n\n    //#region -- Direct to _ui --\n    // ! NOTE: Direct assignments change the target `this` to here. Use with caution\n\n    /** Simplistic jQuery-like document CSS query selector, returns an HTML Element\n     * NOTE that this fn returns the element itself. Use $$ to get the properties of 1 or more elements.\n     * If the selected element is a <template>, returns the first child element.\n     * type {HTMLElement}\n     * @param {string} cssSelector A CSS Selector that identifies the element to return\n     * @returns {HTMLElement|null} Selected HTML element or null\n     */\n    $ = _ui.$\n\n    /** CSS query selector that returns ALL found selections. Matches the Chromium DevTools feature of the same name.\n     * NOTE that this fn returns an array showing the PROPERTIES of the elements whereas $ returns the element itself\n     * @param {string} cssSelector A CSS Selector that identifies the elements to return\n     * @returns {HTMLElement[]} Array of DOM elements/nodes. Array is empty if selector is not found.\n     */\n    $$ = _ui.$$\n\n    /** Reference to the full ui library */\n    $ui = _ui\n\n    /** Add 1 or several class names to an element\n     * @param {string|string[]} classNames Single or array of classnames\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    addClass = _ui.addClass\n\n    /** Converts markdown text input to HTML if the Markdown-IT library is loaded\n     * Otherwise simply returns the text\n     * @param {string} mdText The input markdown string\n     * @returns {string} HTML (if Markdown-IT library loaded and parse successful) or original text\n     */\n    convertMarkdown(mdText) {\n        return _ui.convertMarkdown\n    }\n\n    /** ASYNC: Include HTML fragment, img, video, text, json, form data, pdf or anything else from an external file or API\n     * Wraps the included object in a div tag.\n     * PDF's, text or unknown MIME types are also wrapped in an iFrame.\n     * @param {string} url The URL of the source file to include\n     * @param {object} uiOptions Object containing properties recognised by the _uiReplace function. Must at least contain an id\n     * param {string} uiOptions.id The HTML ID given to the wrapping DIV tag\n     * param {string} uiOptions.parentSelector The CSS selector for a parent element to insert the new HTML under (defaults to 'body')\n     */\n    async include(url, uiOptions) {\n        await _ui.include(url, uiOptions)\n    }\n\n    /** Attach a new remote script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the script src attribute\n     */\n    loadScriptSrc(url) {\n        _ui.loadScriptSrc(url)\n    }\n\n    /** Attach a new remote stylesheet link to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} url The url to be used in the style link href attribute\n     */\n    loadStyleSrc(url) {\n        _ui.loadStyleSrc(url)\n    }\n\n    /** Attach a new text script to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a script\n     */\n    loadScriptTxt(textFn) {\n        _ui.loadScriptTxt(textFn)\n    }\n\n    /** Attach a new text stylesheet to the end of HEAD synchronously\n     * NOTE: It takes too long for most scripts to finish loading\n     *       so this is pretty useless to work with the dynamic UI features directly.\n     * @param {string} textFn The text to be loaded as a stylesheet\n     */\n    loadStyleTxt(textFn) {\n        _ui.loadStyleTxt(textFn)\n    }\n\n    /** Load a dynamic UI from a JSON web reponse\n     * @param {string} url URL that will return the ui JSON\n     */\n    loadui(url) {\n        _ui.loadui(url)\n    }\n\n    /** Remove All, 1 or more class names from an element\n     * @param {undefined|null|\"\"|string|string[]} classNames Single or array of classnames. If undefined, \"\" or null, remove all classes\n     * @param {HTMLElement} el HTML Element to add class(es) to\n     */\n    removeClass = _ui.removeClass\n\n    /** Replace or add an HTML element's slot from text or an HTML string\n     * Will use DOMPurify if that library has been loaded to window.\n     * param {*} ui Single entry from the msg._ui property\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlot(el, component) {\n        _ui.replaceSlot(el, component)\n    }\n\n    /** Replace or add an HTML element's slot from a Markdown string\n     * Only does something if the markdownit library has been loaded to window.\n     * Will use DOMPurify if that library has been loaded to window.\n     * @param {Element} el Reference to the element that we want to update\n     * @param {*} component The component we are trying to add/replace\n     */\n    replaceSlotMarkdown(el, component) {\n        _ui.replaceSlotMarkdown(el, component)\n    }\n\n    /** Sanitise HTML to make it safe - if the DOMPurify library is loaded\n     * Otherwise just returns that HTML as-is.\n     * @param {string} html The input HTML string\n     * @returns {string} The sanitised HTML or the original if DOMPurify not loaded\n     */\n    sanitiseHTML(html) {\n        return _ui.sanitiseHTML(html)\n    }\n\n    /** Show a pop-over \"toast\" dialog or a modal alert\n     * Refs: https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/alertdialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/dialog.html,\n     *       https://www.w3.org/WAI/ARIA/apg/patterns/dialogmodal/\n     * @param {\"notify\"|\"alert\"} type Dialog type\n     * @param {object} ui standardised ui data\n     * @param {object} [msg] msg.payload/msg.topic - only used if a string. Optional.\n     * @returns {void}\n     */\n    showDialog(type, ui, msg) {\n        _ui.showDialog(type, ui, msg)\n    }\n\n    /** Directly manage UI via JSON\n     * @param {object} json Either an object containing {_ui: {}} or simply simple {} containing ui instructions\n     */\n    ui(json) {\n        _ui.ui(json)\n    }\n\n    /** Get data from the DOM. Returns selection of useful props unless a specific prop requested.\n     * @param {string} cssSelector Identify the DOM element to get data from\n     * @param {string} [propName] Optional. Specific name of property to get from the element\n     * @returns {Array<*>} Array of objects containing either specific requested property or a selection of useful properties\n     */\n    uiGet(cssSelector, propName = null) {\n        return _ui.uiGet(cssSelector, propName)\n    }\n\n    /** Enhance an HTML element that is being composed with ui data\n     *  such as ID, attribs, event handlers, custom props, etc.\n     * @param {*} el HTML Element to enhance\n     * @param {*} component Individual uibuilder ui component spec\n     */\n    uiEnhanceElement(el, component) {\n        _ui.uiEnhanceElement(el, component)\n    }\n\n    //#endregion -- direct to _ui --\n\n    /** * Show/hide a display card on the end of the visible HTML that will dynamically display the last incoming msg from Node-RED\n     * The card has the id `uib_last_msg`. Updates are done from a listener set up in the start function.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showMsg(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowMsg\n        this.#isShowMsg = showHide\n        let slot = 'Waiting for a message from Node-RED'\n\n        if (this.msg && Object.keys(this.msg).length > 0) {\n            slot = this.syntaxHighlight(this.msg)\n        }\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_last_msg_wrap',\n                ],\n            })\n        } else {\n            _ui._uiReplace({\n                components: [\n                    {\n                        type: 'div',\n                        id: 'uib_last_msg_wrap',\n                        parent: parent,\n                        attributes: {\n                            title: 'Last message from Node-RED',\n                        },\n                        components: [\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.copyToClipboard(\"msg\")',\n                                    class: 'compact',\n                                    style: 'right:3em;',\n                                },\n                                slot: '\uD83D\uDCCB',\n                            },\n                            {\n                                type: 'button',\n                                attributes: {\n                                    onclick: 'uibuilder.showMsg()',\n                                    class: 'compact',\n                                    style: 'right:.5em;',\n                                },\n                                slot: '\u26D4',\n                            },\n                            {\n                                type: 'pre',\n                                id: 'uib_last_msg',\n                                // parent: 'uib_last_msg_wrap',\n                                attributes: {\n                                    class: 'syntax-highlight',\n                                },\n                                slot: slot,\n                            },\n                        ],\n                    },\n                ],\n            })\n        }\n\n        return showHide\n    }\n\n    /** Show a browser notification if possible.\n     * Config can be a simple string, a Node-RED msg (topic as title, payload as body)\n     * or a Notifications API options object + config.title string.\n     * @example uibuilder.notify( 'My simple message to the user' )\n     * @example uibuilder.notify( {topic: 'My Title', payload: 'My simple message to the user'} )\n     * @example uibuilder.notify( {title: 'My Title', body: 'My simple message to the user'} )\n     * @example // If config.return = true, a promise is returned.\n     * // The resolved promise is only returned if the notification is clicked by the user.\n     * // Can be used to send the response back to Node-RED\n     * uibuilder.notify(notifyConfig).then( res => uibuilder.eventSend(res) )\n     * @ref https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification\n     * @param {object|string} config Notification config data or simple message string\n     * @returns {Promise<Event>|null} A promise that resolves to the click event or null\n     */\n    notify(config) {\n        if (config.return) return _ui.notification(config)\n\n        _ui.notification(config)\n            .then( res => { // eslint-disable-line promise/always-return\n                log('info', 'Uib:notification', 'Notification completed event', res)()\n                // if (config.return) return res\n            })\n            .catch( err => {\n                log('error', 'Uib:notification', 'Notification error event', err)()\n            })\n        return null\n    }\n\n    /** Scroll the page\n     * https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollIntoView\n     * @param {string} [cssSelector] Optional. If not set, scrolls to top of page.\n     * @param {{block:(string|undefined),inline:(string|undefined),behavior:(string|undefined)}} [opts] Optional. DOM scrollIntoView options\n     * @returns {boolean} True if element was found, false otherwise\n     */\n    scrollTo(cssSelector, opts) {\n        // @ts-ignore\n        if (!opts) opts = {}\n        if (!cssSelector || cssSelector === 'top'  || cssSelector === 'start') cssSelector = 'body'\n        else if (cssSelector === 'bottom' || cssSelector === 'end') {\n            cssSelector = 'body'\n            opts.block = 'end'\n        }\n        const el = this.$(cssSelector)\n        if (el) {\n            el.scrollIntoView(opts)\n            return true\n        }\n        return false\n    }\n\n    /** Show/hide a display card on the end of the visible HTML that will dynamically display the current status of the uibuilder client\n     * The card has the id `uib_status`.\n     * The display is updated by an event listener created in the class constructor.\n     * @param {boolean|undefined} showHide true=show, false=hide. undefined=toggle.\n     * @param {string|undefined} parent Optional. If not undefined, a CSS selector to attach the display to. Defaults to `body`\n     * @returns {boolean} New state\n     */\n    showStatus(showHide, parent = 'body') {\n        if ( showHide === undefined ) showHide = !this.#isShowStatus\n        this.#isShowStatus = showHide\n\n        if ( showHide === false ) {\n            _ui._uiRemove( {\n                components: [\n                    '#uib_status',\n                ],\n            })\n            return showHide\n        }\n\n        const root = {\n            components: [\n                {\n                    type: 'div',\n                    id: 'uib_status',\n                    parent: parent,\n                    attributes: {\n                        title: 'Current status of the uibuilder client',\n                        class: 'text-smaller',\n                    },\n                    components: [\n                        {\n                            'type': 'table',\n                            'components': [\n                                {\n                                    'type': 'tbody',\n                                    'components': []\n                                }\n                            ]\n                        }\n                    ]\n                }\n            ]\n        }\n        const details = root.components[0].components[0].components[0].components\n\n        Object.values(this.#showStatus).forEach( entry => {\n            details.push({\n                'type': 'tr',\n                'attributes': {\n                    title: entry.description,\n                },\n                'components': [\n                    {\n                        'type': 'th',\n                        'slot': entry.label,\n                    },\n                    {\n                        'type': 'td',\n                        'attributes': {\n                            'data-varType': entry.var,\n                        },\n                        'slot': entry.var === 'version' ? Uib._meta.version : JSON.stringify(this[entry.var]),\n                    }\n                ],\n            })\n        })\n\n        _ui._uiReplace(root)\n\n        return showHide\n    }\n\n    /** Use the Mutation Observer browser API to watch for changes to a single element on the page.\n     * OMG! It is sooo hard to turn the data into something that successfully serialises so it can be sent back to Node-RED!\n     * NB: Each cssSelector creates a unique watcher. Sending the same selector overwrites the previous one.\n     * @param {string} cssSelector A CSS Selector that selects the element to watch for changes\n     * @param {boolean|\"toggle\"} [startStop] true=start watching the DOM, false=stop. Default='toggle'\n     * @param {boolean} [send] true=Send changes to Node-RED, false=Don't send. Default=true\n     * @param {boolean} [showLog] true=Output changes to log, false=stop. Default=true. Log level is 2 (Info)\n     * @returns {boolean} True if the watch is on, false otherwise\n     */\n    uiWatch(cssSelector, startStop = 'toggle', send = true, showLog = true) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.querySelector(cssSelector)\n        if (!targetNode) {\n            log('warn', 'uibuilder.module.js:uiWatch', `CSS Selector '${cssSelector}' not found.`)()\n            return false\n        }\n\n        if (startStop === 'toggle' || startStop === undefined || startStop === null) {\n            if (this.#uiObservers[cssSelector]) startStop = false\n            else startStop = true\n        }\n\n        // Need a ref to the Uib this\n        const that = this\n\n        if (startStop === true) {\n            // Create an observer instance\n            this.#uiObservers[cssSelector] = new MutationObserver( function( mutationList /* , observer */ ) {\n                const out = []\n\n                mutationList.forEach( mu => {\n                    // console.log({ mu })\n                    const oMu = {\n                        type: mu.type,\n                        oldValue: mu.oldValue !== null ? mu.oldValue : undefined,\n                    }\n\n                    if (mu.addedNodes.length > 0) {\n                        oMu.addedNodes = []\n                        mu.addedNodes.forEach( (an, i) => {\n                            oMu.addedNodes.push(_ui.nodeGet(mu.addedNodes[i]))\n                        })\n                    }\n\n                    if (mu.removedNodes.length > 0) {\n                        oMu.removedNodes = []\n                        mu.removedNodes.forEach( (an, i) => {\n                            oMu.removedNodes.push(_ui.nodeGet(mu.removedNodes[i]))\n                        })\n                    }\n\n                    if ( mu.type === 'attributes' ) {\n                        oMu.attributeName = mu.attributeName\n                        // @ts-ignore\n                        oMu.newValue = mu.target.attributes[mu.attributeName].value\n                    }\n\n                    out.push(oMu)\n                })\n\n                // Custom event\n                that._dispatchCustomEvent('uibuilder:domChange', out)\n                // Send a msg back to node-red\n                if (send === true) {\n                    that.send({\n                        _ui: {\n                            cssSelector: cssSelector,\n                            uiChanges: out\n                        },\n                        topic: that.topic || `DOM Changes for '${cssSelector}'`,\n                    })\n                }\n                // Log to info\n                if (showLog === true) {\n                    log('info', 'uibuilder.module.js:uiWatch', `DOM Changes for '${cssSelector}'`, { uiChanges: out }, { mutationList })()\n                }\n            } )\n\n            // Start observing the target node for configured mutations\n            this.#uiObservers[cssSelector].observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:uiWatch', `Started Watching DOM changes for '${cssSelector}'`)()\n        } else {\n            this.#uiObservers[cssSelector].disconnect()\n            delete this.#uiObservers[cssSelector]\n            log('trace', 'uibuilder.module.js:uiWatch', `Stopped Watching DOM changes for '${cssSelector}'`)()\n        }\n\n        return startStop\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- HTML cache and DOM watch --------- //\n\n    /** Clear the saved DOM from localStorage */\n    clearHtmlCache() {\n        this.removeStore('htmlCache')\n        log('trace', 'uibuilder.module.js:clearHtmlCache', 'HTML cache cleared')()\n    }\n\n    /** Restore the complete DOM (the whole web page) from browser localStorage if available */\n    restoreHtmlFromCache() {\n        // Is the html cached? If so, restore it\n        const htmlCache = this.getStore('htmlCache')\n        if (htmlCache) {\n            const targetNode = document.getElementsByTagName('html')[0]\n            // Restore the entire HTML\n            targetNode.innerHTML = htmlCache\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'Restored HTML from cache')()\n        } else {\n            log('trace', 'uibuilder.module.js:restoreHtmlFromCache', 'No cache to restore')()\n        }\n    }\n\n    /** Save the current DOM state to browser localStorage.\n     * localStorage is persistent and so can be recovered even after a browser restart.\n     */\n    saveHtmlCache() {\n        // Save the updated entire HTML in localStorage\n        this.setStore('htmlCache', document.documentElement.innerHTML)\n    }\n\n    /** Use the Mutation Observer browser API to watch for and save changes to the HTML\n     * Once the observer is created, it will be reused.\n     * Sending true or undefined will turn on the observer, false turns it off.\n     * saveHtmlCache is called whenever anything changes in the dom. This allows\n     * users to call restoreHtmlFromCache() on page load if desired to completely reload\n     * to the last saved state.\n     * @param {boolean} startStop true=start watching the DOM, false=stop\n     */\n    watchDom(startStop) {\n        // Select the node that will be observed for mutations\n        const targetNode = document.documentElement\n\n        // Need a ref to the Uib this\n        const that = this\n\n        // Create an observer instance\n        if (!this._htmlObserver) {\n            this._htmlObserver = new MutationObserver( function(/* mutationList, observer */) {\n                // We don't need to know the details - so kill off any outstanding mutation records\n                this.takeRecords()\n                // Save the updated entire HTML in localStorage\n                that.saveHtmlCache()\n            } )\n        }\n\n        if (startStop === true || startStop === undefined) {\n            // Start observing the target node for configured mutations\n            this._htmlObserver.observe(targetNode, { attributes: true, childList: true, subtree: true, characterData: true })\n            log('trace', 'uibuilder.module.js:watchDom', 'Started Watching and saving DOM changes')()\n        } else {\n            this._htmlObserver.disconnect()\n            log('trace', 'uibuilder.module.js:watchDom', 'Stopped Watching and saving DOM changes')()\n        }\n    } // ---- End of watchDom ---- //\n\n    //#endregion -------- -------- -------- //\n\n    //#region ------- Message Handling (To/From Node-RED) -------- //\n\n    /** Handles original control msgs (not to be confused with \"new\" msg._uib controls)\n     * @param {*} receivedCtrlMsg The msg received on the socket.io control channel\n     */\n    _ctrlMsgFromServer(receivedCtrlMsg) {\n\n        // Make sure that msg is an object & not null\n        if (receivedCtrlMsg === null) {\n            receivedCtrlMsg = {}\n        } else if (typeof receivedCtrlMsg !== 'object') {\n            const msg = {}\n            msg['uibuilderCtrl:' + this._ioChannels.control] = receivedCtrlMsg\n            receivedCtrlMsg = msg\n        }\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedCtrlMsg)\n\n        this.set('ctrlMsg', receivedCtrlMsg)\n        this.set('msgsCtrlReceived', ++this.msgsCtrlReceived)\n\n        log('trace', 'Uib:ioSetup:_ctrlMsgFromServer', `Channel '${this._ioChannels.control}'. Received control msg #${this.msgsCtrlReceived}`, receivedCtrlMsg)()\n\n        /** Process control msg types */\n        switch (receivedCtrlMsg.uibuilderCtrl) {\n            // Node-RED is shutting down\n            case 'shutdown': {\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, '\u274C Received \"shutdown\" from server')()\n                this.set('serverShutdown', undefined)\n                break\n            }\n\n            /** We are connected to the server - 1st msg from server */\n            case 'client connect': {\n                log('trace', `Uib:ioSetup:${this._ioChannels.control}`, 'Received \"client connect\" from server')()\n                log('info', `Uib:ioSetup:${this._ioChannels.control}`, `\u2705 Server connected. Version: ${receivedCtrlMsg.version}\\nServer time: ${receivedCtrlMsg.serverTimestamp}, Sever time offset: ${this.serverTimeOffset} hours`)()\n\n                if ( !Uib._meta.version.startsWith(receivedCtrlMsg.version.split('-')[0]) ) {\n                    log('warn', `Uib:ioSetup:${this._ioChannels.control}`, `Server version (${receivedCtrlMsg.version}) not the same as the client version (${Uib._meta.version})`)()\n                }\n\n                if (this.autoSendReady === true) { // eslint-disable-line no-lonely-if\n                    log('trace', `Uib:ioSetup:${this._ioChannels.control}/client connect`, 'Auto-sending ready-for-content/replay msg to server')\n                    // @since 0.4.8c Add cacheControl property for use with node-red-contrib-infocache\n                    // @since 6.1.0 Don't bother, we use the \"client connect\" msg\n                    // this._send({\n                    //     'uibuilderCtrl': 'ready for content',\n                    //     'cacheControl': 'REPLAY',\n                    // }, this._ioChannels.control)\n                }\n\n                break\n            }\n\n            default: {\n                log('trace', `uibuilderfe:ioSetup:${this._ioChannels.control}`, `Received ${receivedCtrlMsg.uibuilderCtrl} from server`)\n                // Anything else to do for other control msgs?\n            }\n        } // ---- End of process control msg types ---- //\n    } // -- End of websocket receive CONTROL msg from Node-RED -- //\n\n    /** Do we want to process something? Check pageName, clientId, tabId. Defaults to yes.\n     * @param {*} obj Either a msg._ui or msg._uib object to check\n     * @returns {boolean} True if we should process the inbound _ui/_uib msg, false if not.\n     */\n    _forThis(obj) {\n        let r = true\n\n        // Is this msg for this pageName?\n        if (obj.pageName && obj.pageName !== this.pageName) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this page')()\n            r = false\n        }\n\n        // Is this msg for this clientId?\n        if (obj.clientId && obj.clientId !== this.clientId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this clientId')()\n            r = false\n        }\n\n        // Is this msg for this tabId?\n        if (obj.tabId && obj.tabId !== this.tabId) {\n            log('trace', 'Uib:_msgRcvdEvents:_uib', 'Not for this tabId')()\n            r = false\n        }\n\n        return r\n    }\n\n    // Handle received messages - Process some msgs internally, emit specific events on document that make it easy for coders to use\n    _msgRcvdEvents(msg) {\n        // Message received\n        this._dispatchCustomEvent('uibuilder:stdMsgReceived', msg)\n\n        // Topic\n        if ( msg.topic ) this._dispatchCustomEvent(`uibuilder:msg:topic:${msg.topic}`, msg)\n\n        // Handle msg._uib special requests\n        if (msg._uib) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._uib)) return\n\n            /** Process a client reload request from Node-RED - as the page is reloaded, everything else is ignored\n             * Note that msg._ui.reload is also actioned via the _ui processing below */\n            if (msg._uib.reload === true) {\n                log('trace', 'Uib:_msgRcvdEvents:_uib:reload', 'reloading')()\n                location.reload()\n                return\n            }\n\n            // Process msg._uib.command messages - allows Node-RED to run uibuilder FE functions\n            if (msg._uib.command) {\n                this._uibCommand(msg)\n                return\n            }\n\n            // Better to request via msg._ui - these are for backwards compatibility\n            if ( msg._uib.componentRef === 'globalNotification' ) {\n                _ui.showDialog('notify', msg._uib.options, msg)\n            }\n            if ( msg._uib.componentRef === 'globalAlert' ) {\n                _ui.showDialog('alert', msg._uib.options, msg)\n            }\n        }\n\n        // Handle msg._ui requests\n        if ( msg._ui ) {\n            // Don't process if the inbound msg is not for us\n            if (!this._forThis(msg._ui)) return\n\n            log('trace', 'Uib:_msgRcvdEvents:_ui', 'Calling _uiManager')()\n            this._dispatchCustomEvent('uibuilder:msg:_ui', msg)\n            _ui._uiManager(msg)\n        }\n    } // --- end of _msgRcvdEvents ---\n\n    /** Internal send fn. Send a standard or control msg back to Node-RED via Socket.IO\n     * NR will generally expect the msg to contain a payload topic\n     * @param {object} msgToSend The msg object to send.\n     * @param {string} [channel=uiBuilderClient] The Socket.IO channel to use, must be in self.ioChannels or it will be ignored\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    _send(msgToSend, channel, originator = '') {\n        if (channel === null || channel === undefined) channel = this._ioChannels.client\n\n        // Make sure msgToSend is an object\n        if (channel === this._ioChannels.client) {\n            msgToSend = makeMeAnObject(msgToSend, 'payload')\n        } else if (channel === this._ioChannels.control) {\n            msgToSend = makeMeAnObject(msgToSend, 'uibuilderCtrl')\n            if (!Object.prototype.hasOwnProperty.call(msgToSend, 'uibuilderCtrl')) {\n                msgToSend.uibuilderCtrl = 'manual send'\n            }\n            // help remember where this came from as ctrl msgs can come from server or client\n            msgToSend.from = 'client'\n        }\n\n        /** since 2020-01-02 Added _socketId which should be the same as the _socketId on the server */\n        msgToSend._socketId = this._socket.id\n\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n\n        // Add the originator metadata if required\n        if (originator === '' && this.originator !== '') originator = this.originator\n        if (originator !== '') Object.assign(msgToSend, { '_uib': { 'originator': originator } })\n\n        // If the msg does not have a topic - see if we want to add one\n        if ( !Object.prototype.hasOwnProperty.call(msgToSend, 'topic') ) {\n            // From the default (`uibuilder.set('topic', 'some topic')`)\n            if (this.topic !== undefined && this.topic !== '') msgToSend.topic = this.topic\n            else {\n                // Did the last inbound msg have a topic?\n                if ( Object.prototype.hasOwnProperty.call(this, 'msg') && Object.prototype.hasOwnProperty.call(this.msg, 'topic') ) {\n                    msgToSend.topic = this.msg.topic\n                }\n            }\n        }\n\n        // If a standard send & _ui property exists, make sure to add _ui.from = 'client'\n        if (msgToSend._ui) msgToSend._ui.from = 'client'\n\n        // Track how many messages have been sent & last msg sent\n        let numMsgs\n        if (channel === this._ioChannels.client) {\n            this.set('sentMsg', msgToSend)\n            numMsgs = this.set('msgsSent', ++this.msgsSent)\n        } else if (channel === this._ioChannels.control) {\n            this.set('sentCtrlMsg', msgToSend)\n            numMsgs = this.set('msgsSentCtrl', ++this.msgsSentCtrl)\n        }\n        log('trace', 'Uib:_send', ` Channel '${channel}'. Sending msg #${numMsgs}`, msgToSend)()\n\n        this._socket.emit(channel, msgToSend)\n    } // --- End of Send Msg Fn --- //\n\n    /** Callback handler for messages from Node-RED\n     * NOTE: `this` is the class here rather the `socket` as would be normal since we bind the correct `this` in the call.\n     *       Use this._socket if needing reference to the socket.\n     * @callback ioSetupFromServer Called from ioSetup/this._socket.on(this.#ioChannels.server, this.stdMsgFromServer.bind(this))\n     * @param {object} receivedMsg The msg object from Node-RED\n     * @this Uib\n     */\n    _stdMsgFromServer(receivedMsg) {\n\n        // Make sure that msg is an object & not null\n        receivedMsg = makeMeAnObject(receivedMsg, 'payload')\n\n        // Don't process if the inbound msg is not for us\n        if (receivedMsg._uib && !this._forThis(receivedMsg._uib)) return\n        if (receivedMsg._ui && !this._forThis(receivedMsg._ui)) return\n\n        // @since 2018-10-07 v1.0.9: Work out local time offset from server\n        this._checkTimestamp(receivedMsg)\n\n        // Track how many messages have been received\n        this.set('msgsReceived', ++this.msgsReceived)\n\n        // Emit specific document events on msg receipt that make it easy for coders to use\n        this._msgRcvdEvents(receivedMsg)\n\n        if ( !('_ui' in receivedMsg && !('payload' in receivedMsg)) ) {\n            // Save the msg for further processing\n            this.set('msg', receivedMsg)\n        }\n\n        log('info', 'Uib:ioSetup:stdMsgFromServer', `Channel '${this._ioChannels.server}'. Received msg #${this.msgsReceived}.`, receivedMsg)()\n\n        // ! NOTE: Don't try to handle specialist messages here. See _msgRcvdEvents.\n    } // -- End of websocket receive DATA msg from Node-RED -- //\n\n    /** Process msg._uib.command - Remember to update #extCommands with new allowed commands\n     * @param {object} msg Msg from Node-RED containing a msg._uib object\n     */\n    _uibCommand(msg) {\n        if (!msg._uib || !msg._uib.command) {\n            log('error', 'uibuilder:_uibCommand', 'Invalid command message received', { msg })()\n            msg.payload = msg.error = 'Invalid command message received'\n            this.send(msg)\n            return\n        }\n        const cmd = msg._uib.command\n        // Disallowed command request outputs error and ignores the msg (NB: Case must match)\n        if (!this.#extCommands.includes(cmd.trim())) {\n            log('error', 'Uib:_uibCommand', `Command '${cmd} is not allowed to be called externally`)()\n            return\n        }\n        const prop = msg._uib.prop\n        const value = msg._uib.value\n        const quiet = msg._uib.quiet ?? false\n        let response, info\n\n        // Don't forget to update `#extCommands`, `docs/client-docs/control-from-node-red.md` & `functions.md`\n        switch (cmd) {\n            case 'elementIsVisible': {\n                response = this.elementIsVisible(prop)\n                // info = `Element \"${prop}\" ${response ? 'is visible' : 'is not visible'}`\n                break\n            }\n\n            case 'elementExists': {\n                response = this.elementExists(prop, false)\n                info = `Element \"${prop}\" ${response ? 'exists' : 'does not exist'}`\n                break\n            }\n\n            case 'get': {\n                response = this.get(prop)\n                break\n            }\n\n            case 'getManagedVarList': {\n                if (prop === 'full') response = this.getManagedVarList()\n                else response = Object.values(this.getManagedVarList())\n                break\n            }\n\n            case 'getWatchedVars': {\n                if (prop === 'full') response = this.getWatchedVars()\n                else response = Object.values(this.getWatchedVars())\n                break\n            }\n\n            case 'htmlSend': {\n                response = this.htmlSend('', false)\n                break\n            }\n\n            case 'include': {\n                // include is async\n                response = _ui.include(prop, value)\n                break\n            }\n\n            case 'navigate': {\n                let newUrl\n                if (prop) newUrl = prop\n                else if (value) newUrl = value\n                response = this.navigate(newUrl)\n                break\n            }\n\n            case 'scrollTo': {\n                response = this.scrollTo(prop, value)\n                break\n            }\n\n            case 'set': {\n                let store = false\n                let autoload = false\n                if (msg._uib.options && msg._uib.options.store) {\n                    if (msg._uib.options.store === true) store = true\n                    if (msg._uib.options.autoload === true) autoload = true\n                }\n                response = this.set(prop, value, store, autoload)\n                break\n            }\n\n            case 'showMsg': {\n                response = this.showMsg(value, prop)\n                break\n            }\n\n            case 'showStatus': {\n                response = this.showStatus(value, prop)\n                break\n            }\n\n            case 'uiGet': {\n                response = _ui.uiGet(prop, value)\n                break\n            }\n\n            case 'uiWatch': {\n                response = this.uiWatch(prop)\n                break\n            }\n\n            case 'watchUrlHash': {\n                response = this.watchUrlHash(prop)\n                break\n            }\n\n            default: {\n                log('warning', 'Uib:_uibCommand', `Command '${cmd}' not yet implemented`)()\n                break\n            }\n        }\n\n        if (quiet !== true) {\n            if (response === undefined) {\n                response = `'${prop}' is undefined`\n            }\n            if (Object(response).constructor === Promise) {\n                // response = `'${cmd} ${prop}' submitted. Cmd is async, no response available`\n                response\n                    .then( (/** @type {any} */ data) => {\n                        msg.payload = msg._uib.response = data\n                        msg.info = msg._uib.info = info\n                        if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                        this.send(msg)\n                        return true\n                    })\n                    .catch( err => {\n                        log(0, 'Uib:_uibCommand', 'Error: ', err)()\n                    })\n            } else {\n                msg.payload = msg._uib.response = response\n                msg.info = msg._uib.info = info\n                if (!msg.topic) msg.topic = this.topic || `uib ${cmd} for '${prop}'`\n                this.send(msg)\n            }\n        }\n    } // --- end of _uibCommand ---\n\n    /** Send log text to uibuilder's beacon endpoint (works even if socket.io not connected)\n     * @param {string} txtToSend Text string to send\n     * @param {string|undefined} logLevel Log level to use. If not supplied, will default to debug\n     */\n    beaconLog(txtToSend, logLevel) {\n        if (!logLevel) logLevel = 'debug'\n        navigator.sendBeacon('./_clientLog', `${logLevel}::${txtToSend}`)\n    }\n\n    /** Easily send the entire DOM/HTML msg back to Node-RED\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     * @param {boolean} [send] If true (default) directly send response to Node-RED. Is false when calling from Node-RED as a command.\n     * @returns {string} The HTML as a string\n     */\n    htmlSend(originator = '', send = true) {\n        const out = `<!doctype html>\\n${document.documentElement.outerHTML}`\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            payload: out,\n            length: out.length,\n            topic: this.topic,\n        }\n\n        log('trace', 'Uib:htmlSend', 'Sending full HTML to Node-RED', msg)()\n\n        if (send === true) this._send(msg, this._ioChannels.client, originator)\n        return out\n    }\n\n    /** Send log info back to Node-RED over uibuilder's websocket control output (Port #2)\n     * @param {...*} arguments All arguments passed to the function are added to the msg.payload\n     */\n    logToServer() {\n        this.sendCtrl({\n            uibuilderCtrl: 'client log message',\n            payload: arguments,\n            // \"version\":\"6.1.0-iife.min\",\n            _socketId: this._socket.id,\n            // \"ip\":\"::1\",\n            clientId: this.clientId,\n            tabId: this.tabId,\n            // \"url\":\"esp-test\",\n            pageName: this.pageName,\n            connections: this.connectedNum,\n            lastNavType: this.lastNavType,\n        })\n    }\n\n    /** Easily send a msg back to Node-RED on a DOM event\n     * @example In plain HTML/JavaScript\n     *    `<button id=\"button1\" name=\"button 1\" data-fred=\"jim\"></button>`\n     *    $('#button1').onclick = (evt) => {\n     *      uibuilder.eventSend(evt)\n     *    }\n     * @example\n     * In VueJS: `<b-button id=\"myButton1\" @click=\"doEvent\" data-something=\"hello\"></b-button>`\n     * In VueJS methods: `doEvent: uibuilder.eventSend,`\n     *\n     * All `data-` attributes will be passed back to Node-RED,\n     *    use them instead of arguments in the click function.\n     *    All target._ui custom properties are also passed back to Node-RED.\n     *\n     * @param {MouseEvent|any} domevent DOM Event object\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    eventSend(domevent, originator = '') { // eslint-disable-line sonarjs/cognitive-complexity\n        // @ts-ignore Handle case where vue messes up `this`\n        if ( this.$attrs ) {\n            log('error', 'Uib:eventSend', '`this` has been usurped by VueJS. Make sure that you wrap the call in a function: `doEvent: function (event) { uibuilder.eventSend(event) },`' )()\n            return\n        }\n        if (!domevent && !event) {\n            log('warn', 'Uib:eventSend', 'Neither the domevent nor the hidden event properties are set. You probably called this function directly rather than applying to an on click event.' )()\n            return\n        }\n        // Handle no argument, e.g. <button onClick=\"uibuilder.eventSend()\"> - event is a hidden variable when fn used in addEventListener\n        if (!domevent || !domevent.constructor) domevent = event\n\n        // The argument must be a DOM event\n        if ((!domevent.constructor.name.endsWith('Event')) || (!domevent.currentTarget)) {\n            log('warn', 'Uib:eventSend', `ARGUMENT NOT A DOM EVENT - use data attributes not function arguments to pass data. Arg Type: ${domevent.constructor.name}`, domevent)()\n            return\n        }\n\n        // Prevent default event action\n        domevent.preventDefault()\n\n        // The target element\n        const target = domevent.currentTarget\n\n        // Get target properties - only shows custom props not element default ones\n        const props = {}\n        Object.keys(target).forEach( key => {\n            if (key.startsWith('_')) return // Exclude private\n            props[key] = target[key]\n        })\n\n        // Attempt to get target attributs - can fail for certain target types\n        const ignoreAttribs = ['class', 'id', 'name']\n        let attribs\n        try {\n            attribs = Object.assign({},\n                ...Array.from(target.attributes,\n                    ( { name, value } ) => {\n                        if ( !ignoreAttribs.includes(name) ) {\n                            return ({ [name]: value })\n                        }\n                        return undefined\n                    }\n                )\n            )\n        } catch (e) {}\n\n        // If target embedded in a form, include the form data\n        let form\n        const frmVals = []\n        if ( target.form ) {\n            form = {}\n            form.valid = target.form.checkValidity()\n            Object.values(target.form).forEach( (frmEl, i) => {\n                const id = frmEl.id !== '' ? frmEl.id : (frmEl.name !== '' ? frmEl.name : `${i}-${frmEl.type}`)\n\n                // We must have both an element id (we may have forced one above) AND\n                // the element type MUST be not undefined - to allow for the extra properties added by frameworks such as Svelte\n                if (id !== '' && frmEl.type) {\n                    // Stupid HTML doesn't use value attrib for checkboxes. So override if value is set to default\n                    if ('checked' in frmEl && frmEl.value === 'on') frmEl.value = frmEl.checked.toString()\n\n                    frmVals.push( { key: id, val: frmEl.value } ) // simplified for addition to msg.payload\n\n                    form[id] = {\n                        'id': frmEl.id,\n                        'name': frmEl.name,\n                        'value': frmEl.value,\n                        'valid': frmEl.checkValidity(),\n                        'type': frmEl.type,\n                    }\n\n                    if (form[id].valid === false) {\n                        const v = frmEl.validity\n                        form[id].validity = {\n                            badInput: v.badInput === true ? v.badInput : undefined,\n                            customError: v.customError === true ? v.customError : undefined,\n                            patternMismatch: v.patternMismatch === true ? v.patternMismatch : undefined,\n                            rangeOverflow: v.rangeOverflow === true ? v.rangeOverflow : undefined,\n                            rangeUnderflow: v.rangeUnderflow === true ? v.rangeUnderflow : undefined,\n                            stepMismatch: v.stepMismatch === true ? v.stepMismatch : undefined,\n                            tooLong: v.tooLong === true ? v.tooLong : undefined,\n                            tooShort: v.tooShort === true ? v.tooShort : undefined,\n                            typeMismatch: v.typeMismatch === true ? v.typeMismatch : undefined,\n                            valueMissing: v.valueMissing === true ? v.valueMissing : undefined,\n                        }\n                    }\n\n                    if (frmEl.dataset) form[id].data = frmEl.dataset\n                }\n            })\n        }\n\n        // Check for CSS Classes\n        let classes\n        try {\n            classes = Array.from(target.classList)\n        } catch (e) {}\n\n        // Each `data-xxxx` attribute is added as a property\n        let payload = { ...target.dataset }\n\n        // Handle Notification events\n        let nprops\n        if ( Object.prototype.toString.call(target) === '[object Notification]') {\n            // Fixed payload for convenience\n            payload = `notification-${target.userAction}`\n            // Capture the notification properties\n            nprops = {\n                // userAction: target.userAction, // uib custom prop: click, close or error\n                actions: target.actions,\n                badge: target.badge,\n                body: target.body,\n                data: target.data,\n                dir: target.dir,\n                icon: target.icon,\n                image: target.image,\n                lang: target.lang,\n                renotify: target.renotify,\n                requireInteraction: target.requireInteraction,\n                silent: target.silent,\n                tag: target.tag,\n                timestamp: target.timestamp,\n                title: target.title,\n                vibrate: target.vibrate,\n            }\n        }\n        // console.log(Object.prototype.toString.call(target))\n\n        // Set up the msg to send - NB: Topic may be added by this._send\n        const msg = {\n            // - this may be an empty Object if no data attributes defined\n            payload: payload,\n\n            _ui: {\n                type: 'eventSend',\n                id: target.id !== '' ? target.id : undefined,\n                name: target.name !== '' ? target.name : undefined,\n                slotText: target.textContent ? target.textContent.substring(0, 255) : undefined,\n\n                form: form,\n                props: props,\n                attribs: attribs,\n                classes: classes,\n\n                notification: nprops,\n\n                event: domevent.type,\n                altKey: domevent.altKey,\n                ctrlKey: domevent.ctrlKey,\n                shiftKey: domevent.shiftKey,\n                metaKey: domevent.metaKey,\n\n                pointerType: domevent.pointerType,\n                nodeName: target.nodeName,\n\n                clientId: this.clientId,\n                pageName: this.pageName,\n                tabId: this.tabId,\n            }\n        }\n\n        if (frmVals.length > 0) {\n            frmVals.forEach( entry => {\n                msg.payload[entry.key] = entry.val\n            })\n        }\n\n        if (domevent.type === 'change') {\n            // Checkboxes don't have a value!!\n            msg._ui.newValue = msg.payload.value = 'checked' in target ? target.checked : domevent.target.value\n        }\n\n        log('trace', 'Uib:eventSend', 'Sending msg to Node-RED', msg)()\n        if (target.dataset && target.dataset.length === 0) log('warn', 'Uib:eventSend', 'No payload in msg. data-* attributes should be used.')()\n\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    /** Send a standard message to NR\n     * @example uibuilder.send({payload:'Hello'})\n     * @param {object} msg Message to send\n     * @param {string} [originator] A Node-RED node ID to return the message to\n     */\n    send(msg, originator = '') {\n        this._send(msg, this._ioChannels.client, originator)\n    }\n\n    // ! TODO: Rooms do not auto-reconnect. Add tracking and update _onConnect\n    // ! TODO: Add receipt handler on joining a room.\n\n    // NOTE: Rooms only understood by server not client so we have to use custom emits\n    //       They do not auto-reconnect\n\n    /** Send a msg to a pre-defined Socket.IO room\n     * @link https://socket.io/docs/v4/rooms/\n     * @param {string} room Name of a Socket.IO pre-defined room.\n     * @param {*} msg Message to send\n     */\n    sendRoom(room, msg) {\n        this._socket.emit('uib-room-send', room, msg )\n    }\n\n    joinRoom(room) {\n        this._socket.emit('uib-room-join', room)\n    }\n\n    leaveRoom(room) {\n        this._socket.emit('uib-room-leave', room)\n    }\n\n    /** Send a control msg to NR\n     * @param {object} msg Message to send\n     */\n    sendCtrl(msg) {\n        this._send(msg, this._ioChannels.control)\n    }\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Socket.IO -------- //\n\n    /** Return the Socket.IO namespace\n     * The cookie method is the most reliable but this falls back to trying to work it\n     * out from the URL if cookies not available. That won't work if page is in a sub-folder.\n     * since 2017-10-21 Improve method to cope with more complex paths - thanks to Steve Rickus @shrickus\n     * since 2017-11-10 v1.0.1 Check cookie first then url. cookie works even if the path is more complex (e.g. sub-folder)\n     * since 2020-01-25 Removed httpRoot from namespace to prevent proxy induced errors\n     * @returns {string} Socket.IO namespace\n     */\n    _getIOnamespace() {\n\n        let ioNamespace\n\n        /** Try getting the namespace cookie. */\n        ioNamespace = this.cookies['uibuilder-namespace']\n\n        // if it wasn't available, try using the current url path\n        if (ioNamespace === undefined || ioNamespace === '') {\n            // split url path & eliminate any blank elements, and trailing or double slashes\n            const u = window.location.pathname.split('/')\n                .filter(function (t) { return t.trim() !== '' })\n\n            /** since v2.0.5 Extra check for 0 length, Issue #73. since 2017-11-06 If the last element of the path is an .html file name, remove it */\n            if (u.length > 0 && (u[u.length - 1].endsWith('.html'))) u.pop()\n\n            // Get the last part of the url path, this MUST match the namespace in uibuilder\n            ioNamespace = u.pop()\n\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via url path: ${ioNamespace}`)()\n        } else {\n            log('trace', 'uibuilder.module.js:getIOnamespace', `Socket.IO namespace found via cookie: ${ioNamespace}`)()\n        }\n\n        this.url = ioNamespace\n        // Namespace HAS to start with a /\n        ioNamespace = '/' + ioNamespace\n\n        log('trace', 'uibuilder.module.js:getIOnamespace', `Final Socket.IO namespace: ${ioNamespace}`)()\n\n        return ioNamespace\n    } // --- End of set IO namespace --- //\n\n    /** Function used to check whether Socket.IO is connected to the server, reconnect if not (recursive)\n     * @param {number} [delay] Initial delay before checking (ms). Default=2000ms\n     * @param {number} [factor] Multiplication factor for subsequent checks (delay*factor). Default=1.5\n     * @param {number} [depth] Recursion depth\n     * @returns {boolean|undefined} Whether or not Socket.IO is connected to uibuilder in Node-RED\n     */\n    _checkConnect(delay, factor, depth = 1) {\n        if ( navigator.onLine === false ) return // Don't bother if we know we are offline\n\n        if (!delay) delay = this.retryMs\n        if (!factor) factor = this.retryFactor\n\n        log('trace', 'Uib:checkConnect', `Checking connection. Connected: ${this._socket.connected}. Timer: ${this.#timerid}. Depth: ${depth}. Delay: ${delay}. Factor: ${factor}`, this._socket)()\n\n        // If we are connected ...\n        if (this._socket.connected === true) {\n            // Clear the setTimeout\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this.set('ioConnected', true)\n            this.set('socketError', null)\n            return true\n        }\n\n        // ... we aren't connected so:\n        this.set('ioConnected', false)\n\n        // we only want one running at a time\n        if (this.#timerid) window.clearTimeout(this.#timerid)\n\n        // Create the new timer\n        this.#timerid = window.setTimeout(() => {\n            log('warn', 'Uib:checkConnect:setTimeout', `Socket.IO reconnection attempt. Current delay: ${delay}. Depth: ${depth}`)()\n\n            // this is necessary sometimes when the socket fails to connect on startup\n            this._socket.disconnect()\n\n            // Try to reconnect\n            this._socket.connect()\n\n            // don't need to check whether we have connected as the timer will have been cleared if we have\n            this.#timerid = null\n\n            // @ts-ignore Create new timer for next time round with extended delay\n            this._checkConnect(delay * factor, factor, depth++)\n        }, delay)\n\n        return false\n    } // --- End of checkConnect Fn--- //\n\n    // See message handling section for msg receipt handlers\n\n    /** Called by _ioSetup when Socket.IO connects to Node-RED */\n    _onConnect() {\n        // WARNING: You cannot change any of the this._socket.auth settings at this point\n        log('info', 'Uib:ioSetup', `\u2705 SOCKET CONNECTED. Connection count: ${this.connectedNum}, Is a Recovery?: ${this._socket.recovered}. \\nNamespace: ${this.ioNamespace}`)()\n        this._dispatchCustomEvent('uibuilder:socket:connected', { 'numConnections': this.connectedNum, 'isRecovery': this._socket.recovered })\n\n        this._checkConnect() // resets any reconnection timers & sets connected flag\n    }\n\n    /** Called by _ioSetup when Socket.IO disconnects from Node-RED\n     * @param {string} reason Disconnection title\n     */\n    _onDisconnect(reason) {\n        // reason === 'io server disconnect' - redeploy of Node instance\n        // reason === 'transport close' - Node-RED terminating\n        // reason === 'ping timeout' - didn't receive a pong response?\n        log('info', 'Uib:ioSetup:socket-disconnect', `\u26D4 Socket Disconnected. Reason: ${reason}`)()\n\n        this._dispatchCustomEvent('uibuilder:socket:disconnected', reason)\n\n        /** A workaround for SIO's failure to reconnect after a disconnection */\n        this._checkConnect()\n    }\n\n    /** Setup Socket.io\n     * since v2.0.0-beta2 Moved to a function and called by the user (uibuilder.start()) so that namespace & path can be passed manually if needed\n     * @returns {boolean} Attaches socket.io manager to self._socket and updates self.ioNamespace & self.ioPath as needed\n     */\n    _ioSetup() {\n\n        // Just a notification, actual load is done outside the class (see start of file)\n        if (io === undefined) {\n            log('error', 'Uib:ioSetup', 'Socket.IO client not loaded, Node-RED comms will not work')()\n            return false\n        }\n\n        // If socket is already set up, close it and remove all of the listeners\n        if (this._socket) {\n            log('trace', 'Uib:ioSetup', 'Removing listeners in preparation for redoing Socket.IO connections')()\n            if (this.#timerid) {\n                window.clearTimeout(this.#timerid)\n                this.#timerid = null\n            }\n            this._socket.close()\n            this._socket.offAny()\n            this._socket = undefined\n            this.set('ioConnected', false)\n        }\n\n        // Update the URL path to make sure we have the right one\n        this.socketOptions.path = this.ioPath\n\n        // NOTE: this._socket.auth is now set by callback and so automatically updated for each client (re)connection. No need to set here\n\n        // Create the socket - make sure client uses Socket.IO version from the uibuilder module (using path)\n        log('trace', 'Uib:ioSetup', `About to create IO object. Transports: [${this.socketOptions.transports.join(', ')}]`)()\n        this._socket = io(this.ioNamespace, this.socketOptions)\n\n        this._connectGlobal()\n\n        /** When the socket is connected - set ioConnected flag and reset connect timer  */\n        this._socket.on('connect', this._onConnect.bind(this))\n\n        // RECEIVE a STANDARD, non-control msg from Node-RED server\n        this._socket.on(this._ioChannels.server, this._stdMsgFromServer.bind(this))\n\n        // RECEIVE a CONTROL msg from Node-RED server - see also sendCtrl()\n        this._socket.on(this._ioChannels.control, this._ctrlMsgFromServer.bind(this))\n\n        // When the socket is disconnected ..............\n        this._socket.on('disconnect', this._onDisconnect.bind(this))\n\n        // Socket.io connection error - probably the wrong ioPath - or client is offline\n        this._socket.on('connect_error', (err) => {\n            if ( navigator.onLine === false ) return // Don't bother with an error if we know we are offline\n            log('error', 'Uib:ioSetup:connect_error', `\u274C Socket.IO Connect Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket connect error processing ---\n\n        // Socket.io error - from the server (socket.use middleware triggered an error response)\n        this._socket.on('error', (err) => {\n            log('error', 'Uib:ioSetup:error', `\u274C Socket.IO Error. Reason: ${err.message}`, err)()\n            this.set('ioConnected', false)\n            this.set('socketError', err)\n            this._dispatchCustomEvent('uibuilder:socket:disconnected', err)\n        }) // --- End of socket error processing ---\n\n        // Ensure we are connected, retry if not\n        this._checkConnect()\n\n        return true\n\n        /* We really don't need these, just for interest\n            self._socket.io.on('packet', function onPacket(data){\n                // we get one of these for each REAL msg (not ping/pong)\n                console.debug('PACKET', data)\n            })\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n                //console.dir(self._socket)\n            }) // --- End of socket pong processing ---\n            self._socket.io.on('packet', function(data){\n                // We get one of these for actual messages, not ping/pong\n                console.debug('PACKET', data)\n            })\n            self._socket.on('connect_timeout', function(timeout) {\n                console.debug('SOCKET CONNECT TIMEOUT - Namespace: ' + ioNamespace + ', Timeout: ' + timeout)\n            }) // --- End of socket connect timeout processing ---\n            self._socket.on('reconnect', function(attemptNum) {\n                console.debug('SOCKET RECONNECTED - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect processing ---\n            self._socket.on('reconnect_attempt', function(attemptNum) {\n                console.debug('SOCKET RECONNECT ATTEMPT - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnect_attempt processing ---\n            self._socket.on('reconnecting', function(attemptNum) {\n                console.debug('SOCKET RECONNECTING - Namespace: ' + ioNamespace + ', Attempt #: ' + attemptNum)\n            }) // --- End of socket reconnecting processing ---\n            self._socket.on('reconnect_error', function(err) {\n                console.debug('SOCKET RECONNECT ERROR - Namespace: ' + ioNamespace + ', Reason: ' + err.message)\n                //console.dir(err)\n            }) // --- End of socket reconnect_error processing ---\n            self._socket.on('reconnect_failed', function() {\n                console.debug('SOCKET RECONNECT FAILED - Namespace: ' + ioNamespace)\n            }) // --- End of socket reconnect_failed processing ---\n            self._socket.on('ping', function() {\n                console.debug('SOCKET PING')\n            }) // --- End of socket ping processing ---\n            self._socket.on('pong', function(latency) {\n                console.debug('SOCKET PONG - Latency: ', latency)\n            }) // --- End of socket pong processing ---\n            */\n    } // ---- End of ioSetup ---- //\n\n    /** Connect to global namespace & create global listener that updates the `globalMsg` var */\n    _connectGlobal() {\n        this._socketGlobal = io('/', this.socketOptions)\n        this._socketGlobal.onAny( (...args) => {\n            this.set('globalMsg', args.slice(0, -1))\n        })\n    }\n\n    /** Manually (re)connect socket.io */\n    connect() {\n        // ? Should I use this._checkConnect()?\n        this._socket.connect()\n    }\n\n    /** Manually disconnect socket.io and stop any auto-reconnect timer */\n    disconnect() {\n        this._socket.disconnect()\n        // As this is a manual disconnect, stop any reconnect timers\n        if (this.#timerid) window.clearTimeout(this.#timerid)\n    }\n\n    //#endregion -------- ------------ -------- //\n\n    //#region ------- Class construction & startup method -------- //\n\n    constructor() {\n        log('trace', 'Uib:constructor', 'Starting')()\n\n        // Track whether the client is online or offline\n        window.addEventListener('offline', (e) => {\n            this.set('online', false)\n            this.set('ioConnected', false)\n            log('warn', 'Browser', 'DISCONNECTED from network')()\n        })\n        window.addEventListener('online', (e) => {\n            this.set('online', true)\n            log('warn', 'Browser', 'Reconnected to network')()\n            this._checkConnect()\n        })\n\n        document.cookie.split(';').forEach((c) => {\n            const splitC = c.split('=')\n            this.cookies[splitC[0].trim()] = splitC[1]\n        })\n\n        /** Client ID set by uibuilder - lasts until browser profile is closed, applies to all tabs */\n        this.set('clientId', this.cookies['uibuilder-client-id'])\n        log('trace', 'Uib:constructor', 'Client ID: ', this.clientId)()\n\n        /** Tab ID - lasts while the tab is open (even if reloaded)\n         * WARNING: Duplicating a tab retains the same tabId\n         */\n        this.set('tabId', window.sessionStorage.getItem('tabId'))\n        if (!this.tabId) {\n            this.set('tabId', `t${Math.floor(Math.random() * 1000000)}`)\n            window.sessionStorage.setItem('tabId', this.tabId)\n        }\n\n        // document.addEventListener('pagehide', (event) => {\n        //     // console.log(`pagehide. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pagehide. From Cache?: ${event.persisted}`)\n        // })\n        // document.addEventListener('pageshow', (event) => {\n        //     // console.log(`pageshow. From Cache?: ${event.persisted}`)\n        //     navigator.sendBeacon('./_clientLog', `pageshow. From Cache?: ${event.persisted}`)\n        // })\n        document.addEventListener('load', () => {\n            this.set('isVisible', true)\n        })\n        document.addEventListener('visibilitychange', () => {\n            // hidden=unload, minimise. visible=un-minimise (not fired on load)\n            this.set('isVisible', document.visibilityState === 'visible')\n            this.sendCtrl({ uibuilderCtrl: 'visibility', isVisible: this.isVisible })\n            // navigator.userActivation is experimental Chromium only\n            // console.log('visibilitychange', ':', `Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n            // navigator.sendBeacon('./_clientLog', `${(new Date()).toISOString()} Document Event: visibilitychange. Visibility State: ${document.visibilityState}. User Activity- Has:${navigator.userActivation.hasBeenActive}, Is:${navigator.userActivation.isActive}`)\n        })\n\n        // Set a listener to update showStatus table if it is active\n        document.addEventListener('uibuilder:propertyChanged', (event) => {\n            if (!this.#isShowStatus) return\n\n            // @ts-ignore\n            if (event.detail.prop in this.#showStatus) {\n                // @ts-ignore\n                document.querySelector(`td[data-vartype=\"${event.detail.prop}\"]`).innerText = JSON.stringify(event.detail.value)\n            }\n        })\n\n        this.set('ioNamespace', this._getIOnamespace())\n\n        //#region - Try to make sure client uses Socket.IO client version from the uibuilder module (using cookie or path) @since v2.0.0 2019-02-24 allows for httpNodeRoot\n\n        /** httpNodeRoot (to set path) */\n        if ('uibuilder-webRoot' in this.cookies) {\n            this.set('httpNodeRoot', this.cookies['uibuilder-webRoot'])\n            log('trace', 'Uib:constructor', `httpNodeRoot set by cookie to \"${this.httpNodeRoot}\"`)()\n        } else {\n            // split current url path, eliminate any blank elements and trailing or double slashes\n            const fullPath = window.location.pathname.split('/').filter(function (t) { return t.trim() !== '' })\n            /** handle url includes file name - @since v2.0.5 Extra check for 0 length, Issue #73. */\n            if (fullPath.length > 0 && fullPath[fullPath.length - 1].endsWith('.html')) fullPath.pop()\n            fullPath.pop() // gives the last path section of the url\n            this.set('httpNodeRoot', `/${fullPath.join('/')}`)\n            log('trace', '[Uib:constructor]', `httpNodeRoot set by URL parsing to \"${this.httpNodeRoot}\". NOTE: This may fail for pages in sub-folders.`)()\n        }\n        this.set('ioPath', urlJoin(this.httpNodeRoot, Uib._meta.displayName, 'vendor', 'socket.io'))\n        log('trace', 'Uib:constructor', `ioPath: \"${this.ioPath}\"`)()\n\n        //#endregion\n\n        // Work out pageName\n        this.set('pageName', window.location.pathname.replace(`${this.ioNamespace}/`, ''))\n        if ( this.pageName.endsWith('/') ) this.set('pageName', `${this.pageName}index.html`)\n        if ( this.pageName === '' ) this.set('pageName', 'index.html')\n\n        // Attempt to restore autoload variables\n        try {\n            const autoloadVars = this.getStore('_uibAutoloadVars')\n            if (Object.keys(autoloadVars).length > 0) {\n                Object.keys(autoloadVars).forEach( (id) => {\n                    this.set(id, this.getStore(id))\n                })\n            }\n        } catch (e) {}\n\n        this._dispatchCustomEvent('uibuilder:constructorComplete')\n\n        log('trace', 'Uib:constructor', 'Ending')()\n    }\n\n    /** Start up Socket.IO comms and listeners\n     * This has to be done separately because if running from a web page in a sub-folder of src/dist, uibuilder cannot\n     * necessarily work out the correct ioPath to use.\n     * Also, if cookies aren't permitted in the browser, both ioPath and ioNamespace may need to be specified.\n     * @param {object} [options] The start options object.\n     * @returns {void}\n     */\n    start(options) {\n        log('trace', 'Uib:start', 'Starting')()\n\n        // Cancel the msg event handler if already present\n        if ( this.#MsgHandler ) this.cancelChange('msg', this.#MsgHandler)\n\n        if (this.started === true) {\n            log('info', 'Uib:start', 'Start function already called. Resetting Socket.IO and msg handler.')()\n        }\n\n        log('log', 'Uib:start', 'Cookies: ', this.cookies, `\\nClient ID: ${this.clientId}`)()\n        log('trace', 'Uib:start', 'ioNamespace: ', this.ioNamespace, `\\nioPath: ${this.ioPath}`)()\n\n        // Handle options\n        if (options) {\n            if (options.ioNamespace) this.set('ioNamespace', options.ioNamespace)\n            if (options.ioPath) this.set('ioPath', options.ioPath)\n            if (options.nopolling && this.socketOptions.transports[0] === 'polling') this.socketOptions.transports.shift()\n            // See below for handling of options.loadStylesheet\n        }\n\n        // Do we need to load styles?\n        if ( document.styleSheets.length >= 1 || (document.styleSheets.length === 1 && document.styleSheets[0].cssRules.length === 0) ) {\n            log('info', 'Uib:start', 'Styles already loaded so not loading uibuilder default styles.')()\n        } else {\n            if (options && options.loadStylesheet === false) log('info', 'Uib:start', 'No styles loaded & options.loadStylesheet === false.')()\n            else {\n                log('info', 'Uib:start', 'No styles loaded, loading uibuilder default styles.')()\n                this.loadStyleSrc(`${this.httpNodeRoot}/uibuilder/uib-brand.min.css`)\n            }\n        }\n\n        /** Handle specialist messages like reload and _ui -> Moved to _msgRcvdEvents */\n\n        // Track last browser navigation type: navigate, reload, back_forward, prerender\n        // TODO Needs more work - updates on navigation needed?\n        const [entry] = performance.getEntriesByType('navigation')\n        // @ts-ignore\n        this.set('lastNavType', entry.type)\n\n        // Start up (or restart) Socket.IO connections and listeners. Returns false if io not found\n        this.set('started', this._ioSetup())\n\n        if ( this.started === true ) {\n            log('trace', 'Uib:start', 'Start completed. Socket.IO client library loaded.')()\n        } else {\n            log('error', 'Uib:start', 'Start completed. ERROR: Socket.IO client library NOT LOADED.')()\n        }\n\n        // Watch for URL hash changes in case using a front-end router. Updates watched var `urlHash` and socket.io `auth.urlHash`\n        this._watchHashChanges()\n\n        // Check if Vue is present (used for dynamic UI processing)\n        if (window['Vue']) {\n            this.set('isVue', true)\n            try {\n                this.set('vueVersion', window['Vue'].version)\n            } catch (e) { }\n            log('trace', 'Uib:start', `VueJS is loaded. Version: ${this.vueVersion}`)()\n        } else {\n            log('trace', 'Uib:start', 'VueJS is not loaded.')()\n        }\n\n        // Check if DOMPurify library is loaded\n        if (window['DOMPurify']) {\n            this.set('purify', true)\n            log('trace', 'Uib:start', 'DOMPurify is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'DOMPurify is not loaded.')()\n        }\n        // Check if Markdown-IT library is loaded\n        if (window['markdownit']) {\n            this.set('markdown', true)\n            log('trace', 'Uib:start', 'Markdown-IT is loaded.')()\n        } else {\n            log('trace', 'Uib:start', 'Markdown-IT is not loaded.')()\n        }\n\n        // if (window['DOMPurify']) {\n        //     this.set('purify', true)\n        //     log('trace', 'Uib:start', 'DOMPurify is loaded.')\n        // } else {\n        //     log('trace', 'Uib:start', 'DOMPurify is not loaded.')\n        // }\n\n        // Set up msg listener for the optional showMsg\n        this.onChange('msg', (msg) => {\n            if (this.#isShowMsg === true) {\n                const eMsg = document.getElementById('uib_last_msg')\n                if (eMsg) eMsg.innerHTML = this.syntaxHighlight(msg)\n            }\n        })\n\n        this._dispatchCustomEvent('uibuilder:startComplete')\n    }\n\n    //#endregion -------- ------------ -------- //\n} // ==== End of Class Uib ====\n\n//#region --- Wrap up - get things started ---\n\n// Create an instance (we will only ever want one)\nconst uibuilder = new Uib()\n\n// Assign reference to the instance to the global `window` object\n// Only useful if loading via <script> tag - prefer loading via `import uibuilder from ...`\nif (!window['uibuilder']) {\n    window['uibuilder'] = uibuilder\n} else {\n    log('error', 'uibuilder.module.js', '`uibuilder` already assigned to window. Have you tried to load it more than once?')\n}\nif (!window['uib']) {\n    window['uib'] = uibuilder\n} else {\n    log('warn', 'uibuilder.module.js', '`uib` shortcut already assigned to window.')\n}\n\n// Assign `$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$`.\nif (!window['$']) {\n    /** @type {HTMLElement} */\n    window['$'] = window['uibuilder'].$ // document.querySelector.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$`, it is already in use. Use `uibuilder.$` or `uib.$` instead.')\n}\n// Assign `$$` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$$']) {\n    /** @type {HTMLElement} */\n    window['$$'] = window['uibuilder'].$$ // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$$`, it is already in use. Use `uibuilder.$$` or `uib.$$` instead.')\n}\n\n// Assign `$ui` to global window object unless it is already in use.\n// Note that this is also available as `uibuilder.$$`.\nif (!window['$ui']) {\n    /** @type {HTMLElement} */\n    window['$ui'] = window['uibuilder'].$ui // document.querySelectorAll.bind(document)\n} else {\n    log('warn', 'uibuilder.module.js', 'Cannot allocate the global `$ui`, it is already in use. Use `uibuilder.$ui` or `uib.$ui` instead.')\n}\n\n// Can import as `import uibuilder from ...` OR `import {uibuilder} from ...`\nexport { uibuilder }\nexport default uibuilder\n\n// Attempt to run start fn\nuibuilder.start()\n\n// Add the class as a new Custom Element to the window object\ncustomElements.define('uib-var', UibVar)\n\n//#endregion --- Wrap up ---\n\n// EOF\n", "const PACKET_TYPES = Object.create(null); // no Map = no polyfill\nPACKET_TYPES[\"open\"] = \"0\";\nPACKET_TYPES[\"close\"] = \"1\";\nPACKET_TYPES[\"ping\"] = \"2\";\nPACKET_TYPES[\"pong\"] = \"3\";\nPACKET_TYPES[\"message\"] = \"4\";\nPACKET_TYPES[\"upgrade\"] = \"5\";\nPACKET_TYPES[\"noop\"] = \"6\";\nconst PACKET_TYPES_REVERSE = Object.create(null);\nObject.keys(PACKET_TYPES).forEach(key => {\n    PACKET_TYPES_REVERSE[PACKET_TYPES[key]] = key;\n});\nconst ERROR_PACKET = { type: \"error\", data: \"parser error\" };\nexport { PACKET_TYPES, PACKET_TYPES_REVERSE, ERROR_PACKET };\n", "import { PACKET_TYPES } from \"./commons.js\";\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        Object.prototype.toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\n// ArrayBuffer.isView method is not defined in IE10\nconst isView = obj => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj && obj.buffer instanceof ArrayBuffer;\n};\nconst encodePacket = ({ type, data }, supportsBinary, callback) => {\n    if (withNativeBlob && data instanceof Blob) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(data, callback);\n        }\n    }\n    else if (withNativeArrayBuffer &&\n        (data instanceof ArrayBuffer || isView(data))) {\n        if (supportsBinary) {\n            return callback(data);\n        }\n        else {\n            return encodeBlobAsBase64(new Blob([data]), callback);\n        }\n    }\n    // plain string\n    return callback(PACKET_TYPES[type] + (data || \"\"));\n};\nconst encodeBlobAsBase64 = (data, callback) => {\n    const fileReader = new FileReader();\n    fileReader.onload = function () {\n        const content = fileReader.result.split(\",\")[1];\n        callback(\"b\" + (content || \"\"));\n    };\n    return fileReader.readAsDataURL(data);\n};\nfunction toArray(data) {\n    if (data instanceof Uint8Array) {\n        return data;\n    }\n    else if (data instanceof ArrayBuffer) {\n        return new Uint8Array(data);\n    }\n    else {\n        return new Uint8Array(data.buffer, data.byteOffset, data.byteLength);\n    }\n}\nlet TEXT_ENCODER;\nexport function encodePacketToBinary(packet, callback) {\n    if (withNativeBlob && packet.data instanceof Blob) {\n        return packet.data\n            .arrayBuffer()\n            .then(toArray)\n            .then(callback);\n    }\n    else if (withNativeArrayBuffer &&\n        (packet.data instanceof ArrayBuffer || isView(packet.data))) {\n        return callback(toArray(packet.data));\n    }\n    encodePacket(packet, false, encoded => {\n        if (!TEXT_ENCODER) {\n            TEXT_ENCODER = new TextEncoder();\n        }\n        callback(TEXT_ENCODER.encode(encoded));\n    });\n}\nexport { encodePacket };\n", "// imported from https://github.com/socketio/base64-arraybuffer\nconst chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';\n// Use a lookup table to find the index.\nconst lookup = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);\nfor (let i = 0; i < chars.length; i++) {\n    lookup[chars.charCodeAt(i)] = i;\n}\nexport const encode = (arraybuffer) => {\n    let bytes = new Uint8Array(arraybuffer), i, len = bytes.length, base64 = '';\n    for (i = 0; i < len; i += 3) {\n        base64 += chars[bytes[i] >> 2];\n        base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];\n        base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];\n        base64 += chars[bytes[i + 2] & 63];\n    }\n    if (len % 3 === 2) {\n        base64 = base64.substring(0, base64.length - 1) + '=';\n    }\n    else if (len % 3 === 1) {\n        base64 = base64.substring(0, base64.length - 2) + '==';\n    }\n    return base64;\n};\nexport const decode = (base64) => {\n    let bufferLength = base64.length * 0.75, len = base64.length, i, p = 0, encoded1, encoded2, encoded3, encoded4;\n    if (base64[base64.length - 1] === '=') {\n        bufferLength--;\n        if (base64[base64.length - 2] === '=') {\n            bufferLength--;\n        }\n    }\n    const arraybuffer = new ArrayBuffer(bufferLength), bytes = new Uint8Array(arraybuffer);\n    for (i = 0; i < len; i += 4) {\n        encoded1 = lookup[base64.charCodeAt(i)];\n        encoded2 = lookup[base64.charCodeAt(i + 1)];\n        encoded3 = lookup[base64.charCodeAt(i + 2)];\n        encoded4 = lookup[base64.charCodeAt(i + 3)];\n        bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n        bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n        bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n    }\n    return arraybuffer;\n};\n", "import { ERROR_PACKET, PACKET_TYPES_REVERSE } from \"./commons.js\";\nimport { decode } from \"./contrib/base64-arraybuffer.js\";\nconst withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nexport const decodePacket = (encodedPacket, binaryType) => {\n    if (typeof encodedPacket !== \"string\") {\n        return {\n            type: \"message\",\n            data: mapBinary(encodedPacket, binaryType)\n        };\n    }\n    const type = encodedPacket.charAt(0);\n    if (type === \"b\") {\n        return {\n            type: \"message\",\n            data: decodeBase64Packet(encodedPacket.substring(1), binaryType)\n        };\n    }\n    const packetType = PACKET_TYPES_REVERSE[type];\n    if (!packetType) {\n        return ERROR_PACKET;\n    }\n    return encodedPacket.length > 1\n        ? {\n            type: PACKET_TYPES_REVERSE[type],\n            data: encodedPacket.substring(1)\n        }\n        : {\n            type: PACKET_TYPES_REVERSE[type]\n        };\n};\nconst decodeBase64Packet = (data, binaryType) => {\n    if (withNativeArrayBuffer) {\n        const decoded = decode(data);\n        return mapBinary(decoded, binaryType);\n    }\n    else {\n        return { base64: true, data }; // fallback for old browsers\n    }\n};\nconst mapBinary = (data, binaryType) => {\n    switch (binaryType) {\n        case \"blob\":\n            if (data instanceof Blob) {\n                // from WebSocket + binaryType \"blob\"\n                return data;\n            }\n            else {\n                // from HTTP long-polling or WebTransport\n                return new Blob([data]);\n            }\n        case \"arraybuffer\":\n        default:\n            if (data instanceof ArrayBuffer) {\n                // from HTTP long-polling (base64) or WebSocket + binaryType \"arraybuffer\"\n                return data;\n            }\n            else {\n                // from WebTransport (Uint8Array)\n                return data.buffer;\n            }\n    }\n};\n", "import { encodePacket, encodePacketToBinary } from \"./encodePacket.js\";\nimport { decodePacket } from \"./decodePacket.js\";\nimport { ERROR_PACKET } from \"./commons.js\";\nconst SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text\nconst encodePayload = (packets, callback) => {\n    // some packets may be added to the array while encoding, so the initial length must be saved\n    const length = packets.length;\n    const encodedPackets = new Array(length);\n    let count = 0;\n    packets.forEach((packet, i) => {\n        // force base64 encoding for binary packets\n        encodePacket(packet, false, encodedPacket => {\n            encodedPackets[i] = encodedPacket;\n            if (++count === length) {\n                callback(encodedPackets.join(SEPARATOR));\n            }\n        });\n    });\n};\nconst decodePayload = (encodedPayload, binaryType) => {\n    const encodedPackets = encodedPayload.split(SEPARATOR);\n    const packets = [];\n    for (let i = 0; i < encodedPackets.length; i++) {\n        const decodedPacket = decodePacket(encodedPackets[i], binaryType);\n        packets.push(decodedPacket);\n        if (decodedPacket.type === \"error\") {\n            break;\n        }\n    }\n    return packets;\n};\nexport function createPacketEncoderStream() {\n    return new TransformStream({\n        transform(packet, controller) {\n            encodePacketToBinary(packet, encodedPacket => {\n                const payloadLength = encodedPacket.length;\n                let header;\n                // inspired by the WebSocket format: https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API/Writing_WebSocket_servers#decoding_payload_length\n                if (payloadLength < 126) {\n                    header = new Uint8Array(1);\n                    new DataView(header.buffer).setUint8(0, payloadLength);\n                }\n                else if (payloadLength < 65536) {\n                    header = new Uint8Array(3);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 126);\n                    view.setUint16(1, payloadLength);\n                }\n                else {\n                    header = new Uint8Array(9);\n                    const view = new DataView(header.buffer);\n                    view.setUint8(0, 127);\n                    view.setBigUint64(1, BigInt(payloadLength));\n                }\n                // first bit indicates whether the payload is plain text (0) or binary (1)\n                if (packet.data && typeof packet.data !== \"string\") {\n                    header[0] |= 0x80;\n                }\n                controller.enqueue(header);\n                controller.enqueue(encodedPacket);\n            });\n        }\n    });\n}\nlet TEXT_DECODER;\nfunction totalLength(chunks) {\n    return chunks.reduce((acc, chunk) => acc + chunk.length, 0);\n}\nfunction concatChunks(chunks, size) {\n    if (chunks[0].length === size) {\n        return chunks.shift();\n    }\n    const buffer = new Uint8Array(size);\n    let j = 0;\n    for (let i = 0; i < size; i++) {\n        buffer[i] = chunks[0][j++];\n        if (j === chunks[0].length) {\n            chunks.shift();\n            j = 0;\n        }\n    }\n    if (chunks.length && j < chunks[0].length) {\n        chunks[0] = chunks[0].slice(j);\n    }\n    return buffer;\n}\nexport function createPacketDecoderStream(maxPayload, binaryType) {\n    if (!TEXT_DECODER) {\n        TEXT_DECODER = new TextDecoder();\n    }\n    const chunks = [];\n    let state = 0 /* READ_HEADER */;\n    let expectedLength = -1;\n    let isBinary = false;\n    return new TransformStream({\n        transform(chunk, controller) {\n            chunks.push(chunk);\n            while (true) {\n                if (state === 0 /* READ_HEADER */) {\n                    if (totalLength(chunks) < 1) {\n                        break;\n                    }\n                    const header = concatChunks(chunks, 1);\n                    isBinary = (header[0] & 0x80) === 0x80;\n                    expectedLength = header[0] & 0x7f;\n                    if (expectedLength < 126) {\n                        state = 3 /* READ_PAYLOAD */;\n                    }\n                    else if (expectedLength === 126) {\n                        state = 1 /* READ_EXTENDED_LENGTH_16 */;\n                    }\n                    else {\n                        state = 2 /* READ_EXTENDED_LENGTH_64 */;\n                    }\n                }\n                else if (state === 1 /* READ_EXTENDED_LENGTH_16 */) {\n                    if (totalLength(chunks) < 2) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 2);\n                    expectedLength = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length).getUint16(0);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else if (state === 2 /* READ_EXTENDED_LENGTH_64 */) {\n                    if (totalLength(chunks) < 8) {\n                        break;\n                    }\n                    const headerArray = concatChunks(chunks, 8);\n                    const view = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length);\n                    const n = view.getUint32(0);\n                    if (n > Math.pow(2, 53 - 32) - 1) {\n                        // the maximum safe integer in JavaScript is 2^53 - 1\n                        controller.enqueue(ERROR_PACKET);\n                        break;\n                    }\n                    expectedLength = n * Math.pow(2, 32) + view.getUint32(4);\n                    state = 3 /* READ_PAYLOAD */;\n                }\n                else {\n                    if (totalLength(chunks) < expectedLength) {\n                        break;\n                    }\n                    const data = concatChunks(chunks, expectedLength);\n                    controller.enqueue(decodePacket(isBinary ? data : TEXT_DECODER.decode(data), binaryType));\n                    state = 0 /* READ_HEADER */;\n                }\n                if (expectedLength === 0 || expectedLength > maxPayload) {\n                    controller.enqueue(ERROR_PACKET);\n                    break;\n                }\n            }\n        }\n    });\n}\nexport const protocol = 4;\nexport { encodePacket, encodePayload, decodePacket, decodePayload };\n", "/**\n * Initialize a new `Emitter`.\n *\n * @api public\n */\n\nexport function Emitter(obj) {\n  if (obj) return mixin(obj);\n}\n\n/**\n * Mixin the emitter properties.\n *\n * @param {Object} obj\n * @return {Object}\n * @api private\n */\n\nfunction mixin(obj) {\n  for (var key in Emitter.prototype) {\n    obj[key] = Emitter.prototype[key];\n  }\n  return obj;\n}\n\n/**\n * Listen on the given `event` with `fn`.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.on =\nEmitter.prototype.addEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])\n    .push(fn);\n  return this;\n};\n\n/**\n * Adds an `event` listener that will be invoked a single\n * time then automatically removed.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.once = function(event, fn){\n  function on() {\n    this.off(event, on);\n    fn.apply(this, arguments);\n  }\n\n  on.fn = fn;\n  this.on(event, on);\n  return this;\n};\n\n/**\n * Remove the given callback for `event` or all\n * registered callbacks.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.off =\nEmitter.prototype.removeListener =\nEmitter.prototype.removeAllListeners =\nEmitter.prototype.removeEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n\n  // all\n  if (0 == arguments.length) {\n    this._callbacks = {};\n    return this;\n  }\n\n  // specific event\n  var callbacks = this._callbacks['$' + event];\n  if (!callbacks) return this;\n\n  // remove all handlers\n  if (1 == arguments.length) {\n    delete this._callbacks['$' + event];\n    return this;\n  }\n\n  // remove specific handler\n  var cb;\n  for (var i = 0; i < callbacks.length; i++) {\n    cb = callbacks[i];\n    if (cb === fn || cb.fn === fn) {\n      callbacks.splice(i, 1);\n      break;\n    }\n  }\n\n  // Remove event specific arrays for event types that no\n  // one is subscribed for to avoid memory leak.\n  if (callbacks.length === 0) {\n    delete this._callbacks['$' + event];\n  }\n\n  return this;\n};\n\n/**\n * Emit `event` with the given args.\n *\n * @param {String} event\n * @param {Mixed} ...\n * @return {Emitter}\n */\n\nEmitter.prototype.emit = function(event){\n  this._callbacks = this._callbacks || {};\n\n  var args = new Array(arguments.length - 1)\n    , callbacks = this._callbacks['$' + event];\n\n  for (var i = 1; i < arguments.length; i++) {\n    args[i - 1] = arguments[i];\n  }\n\n  if (callbacks) {\n    callbacks = callbacks.slice(0);\n    for (var i = 0, len = callbacks.length; i < len; ++i) {\n      callbacks[i].apply(this, args);\n    }\n  }\n\n  return this;\n};\n\n// alias used for reserved events (protected method)\nEmitter.prototype.emitReserved = Emitter.prototype.emit;\n\n/**\n * Return array of callbacks for `event`.\n *\n * @param {String} event\n * @return {Array}\n * @api public\n */\n\nEmitter.prototype.listeners = function(event){\n  this._callbacks = this._callbacks || {};\n  return this._callbacks['$' + event] || [];\n};\n\n/**\n * Check if this emitter has `event` handlers.\n *\n * @param {String} event\n * @return {Boolean}\n * @api public\n */\n\nEmitter.prototype.hasListeners = function(event){\n  return !! this.listeners(event).length;\n};\n", "export const globalThisShim = (() => {\n    if (typeof self !== \"undefined\") {\n        return self;\n    }\n    else if (typeof window !== \"undefined\") {\n        return window;\n    }\n    else {\n        return Function(\"return this\")();\n    }\n})();\n", "import { globalThisShim as globalThis } from \"./globalThis.js\";\nexport function pick(obj, ...attr) {\n    return attr.reduce((acc, k) => {\n        if (obj.hasOwnProperty(k)) {\n            acc[k] = obj[k];\n        }\n        return acc;\n    }, {});\n}\n// Keep a reference to the real timeout functions so they can be used when overridden\nconst NATIVE_SET_TIMEOUT = globalThis.setTimeout;\nconst NATIVE_CLEAR_TIMEOUT = globalThis.clearTimeout;\nexport function installTimerFunctions(obj, opts) {\n    if (opts.useNativeTimers) {\n        obj.setTimeoutFn = NATIVE_SET_TIMEOUT.bind(globalThis);\n        obj.clearTimeoutFn = NATIVE_CLEAR_TIMEOUT.bind(globalThis);\n    }\n    else {\n        obj.setTimeoutFn = globalThis.setTimeout.bind(globalThis);\n        obj.clearTimeoutFn = globalThis.clearTimeout.bind(globalThis);\n    }\n}\n// base64 encoded buffers are about 33% bigger (https://en.wikipedia.org/wiki/Base64)\nconst BASE64_OVERHEAD = 1.33;\n// we could also have used `new Blob([obj]).size`, but it isn't supported in IE9\nexport function byteLength(obj) {\n    if (typeof obj === \"string\") {\n        return utf8Length(obj);\n    }\n    // arraybuffer or blob\n    return Math.ceil((obj.byteLength || obj.size) * BASE64_OVERHEAD);\n}\nfunction utf8Length(str) {\n    let c = 0, length = 0;\n    for (let i = 0, l = str.length; i < l; i++) {\n        c = str.charCodeAt(i);\n        if (c < 0x80) {\n            length += 1;\n        }\n        else if (c < 0x800) {\n            length += 2;\n        }\n        else if (c < 0xd800 || c >= 0xe000) {\n            length += 3;\n        }\n        else {\n            i++;\n            length += 4;\n        }\n    }\n    return length;\n}\n", "// imported from https://github.com/galkn/querystring\n/**\n * Compiles a querystring\n * Returns string representation of the object\n *\n * @param {Object}\n * @api private\n */\nexport function encode(obj) {\n    let str = '';\n    for (let i in obj) {\n        if (obj.hasOwnProperty(i)) {\n            if (str.length)\n                str += '&';\n            str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);\n        }\n    }\n    return str;\n}\n/**\n * Parses a simple querystring into an object\n *\n * @param {String} qs\n * @api private\n */\nexport function decode(qs) {\n    let qry = {};\n    let pairs = qs.split('&');\n    for (let i = 0, l = pairs.length; i < l; i++) {\n        let pair = pairs[i].split('=');\n        qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);\n    }\n    return qry;\n}\n", "import { decodePacket } from \"engine.io-parser\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions } from \"./util.js\";\nimport { encode } from \"./contrib/parseqs.js\";\nexport class TransportError extends Error {\n    constructor(reason, description, context) {\n        super(reason);\n        this.description = description;\n        this.context = context;\n        this.type = \"TransportError\";\n    }\n}\nexport class Transport extends Emitter {\n    /**\n     * Transport abstract constructor.\n     *\n     * @param {Object} opts - options\n     * @protected\n     */\n    constructor(opts) {\n        super();\n        this.writable = false;\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.query = opts.query;\n        this.socket = opts.socket;\n    }\n    /**\n     * Emits an error.\n     *\n     * @param {String} reason\n     * @param description\n     * @param context - the error context\n     * @return {Transport} for chaining\n     * @protected\n     */\n    onError(reason, description, context) {\n        super.emitReserved(\"error\", new TransportError(reason, description, context));\n        return this;\n    }\n    /**\n     * Opens the transport.\n     */\n    open() {\n        this.readyState = \"opening\";\n        this.doOpen();\n        return this;\n    }\n    /**\n     * Closes the transport.\n     */\n    close() {\n        if (this.readyState === \"opening\" || this.readyState === \"open\") {\n            this.doClose();\n            this.onClose();\n        }\n        return this;\n    }\n    /**\n     * Sends multiple packets.\n     *\n     * @param {Array} packets\n     */\n    send(packets) {\n        if (this.readyState === \"open\") {\n            this.write(packets);\n        }\n        else {\n            // this might happen if the transport was silently closed in the beforeunload event handler\n        }\n    }\n    /**\n     * Called upon open\n     *\n     * @protected\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        this.writable = true;\n        super.emitReserved(\"open\");\n    }\n    /**\n     * Called with data.\n     *\n     * @param {String} data\n     * @protected\n     */\n    onData(data) {\n        const packet = decodePacket(data, this.socket.binaryType);\n        this.onPacket(packet);\n    }\n    /**\n     * Called with a decoded packet.\n     *\n     * @protected\n     */\n    onPacket(packet) {\n        super.emitReserved(\"packet\", packet);\n    }\n    /**\n     * Called upon close.\n     *\n     * @protected\n     */\n    onClose(details) {\n        this.readyState = \"closed\";\n        super.emitReserved(\"close\", details);\n    }\n    /**\n     * Pauses the transport, in order not to lose packets during an upgrade.\n     *\n     * @param onPause\n     */\n    pause(onPause) { }\n    createUri(schema, query = {}) {\n        return (schema +\n            \"://\" +\n            this._hostname() +\n            this._port() +\n            this.opts.path +\n            this._query(query));\n    }\n    _hostname() {\n        const hostname = this.opts.hostname;\n        return hostname.indexOf(\":\") === -1 ? hostname : \"[\" + hostname + \"]\";\n    }\n    _port() {\n        if (this.opts.port &&\n            ((this.opts.secure && Number(this.opts.port !== 443)) ||\n                (!this.opts.secure && Number(this.opts.port) !== 80))) {\n            return \":\" + this.opts.port;\n        }\n        else {\n            return \"\";\n        }\n    }\n    _query(query) {\n        const encodedQuery = encode(query);\n        return encodedQuery.length ? \"?\" + encodedQuery : \"\";\n    }\n}\n", "// imported from https://github.com/unshiftio/yeast\n'use strict';\nconst alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split(''), length = 64, map = {};\nlet seed = 0, i = 0, prev;\n/**\n * Return a string representing the specified number.\n *\n * @param {Number} num The number to convert.\n * @returns {String} The string representation of the number.\n * @api public\n */\nexport function encode(num) {\n    let encoded = '';\n    do {\n        encoded = alphabet[num % length] + encoded;\n        num = Math.floor(num / length);\n    } while (num > 0);\n    return encoded;\n}\n/**\n * Return the integer value specified by the given string.\n *\n * @param {String} str The string to convert.\n * @returns {Number} The integer value represented by the string.\n * @api public\n */\nexport function decode(str) {\n    let decoded = 0;\n    for (i = 0; i < str.length; i++) {\n        decoded = decoded * length + map[str.charAt(i)];\n    }\n    return decoded;\n}\n/**\n * Yeast: A tiny growing id generator.\n *\n * @returns {String} A unique id.\n * @api public\n */\nexport function yeast() {\n    const now = encode(+new Date());\n    if (now !== prev)\n        return seed = 0, prev = now;\n    return now + '.' + encode(seed++);\n}\n//\n// Map each character to its index.\n//\nfor (; i < length; i++)\n    map[alphabet[i]] = i;\n", "// imported from https://github.com/component/has-cors\nlet value = false;\ntry {\n    value = typeof XMLHttpRequest !== 'undefined' &&\n        'withCredentials' in new XMLHttpRequest();\n}\ncatch (err) {\n    // if XMLHttp support is disabled in IE then it will throw\n    // when trying to create\n}\nexport const hasCORS = value;\n", "// browser shim for xmlhttprequest module\nimport { hasCORS } from \"../contrib/has-cors.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nexport function XHR(opts) {\n    const xdomain = opts.xdomain;\n    // XMLHttpRequest can be disabled on IE\n    try {\n        if (\"undefined\" !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {\n            return new XMLHttpRequest();\n        }\n    }\n    catch (e) { }\n    if (!xdomain) {\n        try {\n            return new globalThis[[\"Active\"].concat(\"Object\").join(\"X\")](\"Microsoft.XMLHTTP\");\n        }\n        catch (e) { }\n    }\n}\nexport function createCookieJar() { }\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { encodePayload, decodePayload } from \"engine.io-parser\";\nimport { createCookieJar, XHR as XMLHttpRequest, } from \"./xmlhttprequest.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { installTimerFunctions, pick } from \"../util.js\";\nimport { globalThisShim as globalThis } from \"../globalThis.js\";\nfunction empty() { }\nconst hasXHR2 = (function () {\n    const xhr = new XMLHttpRequest({\n        xdomain: false,\n    });\n    return null != xhr.responseType;\n})();\nexport class Polling extends Transport {\n    /**\n     * XHR Polling constructor.\n     *\n     * @param {Object} opts\n     * @package\n     */\n    constructor(opts) {\n        super(opts);\n        this.polling = false;\n        if (typeof location !== \"undefined\") {\n            const isSSL = \"https:\" === location.protocol;\n            let port = location.port;\n            // some user agents have empty `location.port`\n            if (!port) {\n                port = isSSL ? \"443\" : \"80\";\n            }\n            this.xd =\n                (typeof location !== \"undefined\" &&\n                    opts.hostname !== location.hostname) ||\n                    port !== opts.port;\n        }\n        /**\n         * XHR supports binary\n         */\n        const forceBase64 = opts && opts.forceBase64;\n        this.supportsBinary = hasXHR2 && !forceBase64;\n        if (this.opts.withCredentials) {\n            this.cookieJar = createCookieJar();\n        }\n    }\n    get name() {\n        return \"polling\";\n    }\n    /**\n     * Opens the socket (triggers polling). We write a PING message to determine\n     * when the transport is open.\n     *\n     * @protected\n     */\n    doOpen() {\n        this.poll();\n    }\n    /**\n     * Pauses polling.\n     *\n     * @param {Function} onPause - callback upon buffers are flushed and transport is paused\n     * @package\n     */\n    pause(onPause) {\n        this.readyState = \"pausing\";\n        const pause = () => {\n            this.readyState = \"paused\";\n            onPause();\n        };\n        if (this.polling || !this.writable) {\n            let total = 0;\n            if (this.polling) {\n                total++;\n                this.once(\"pollComplete\", function () {\n                    --total || pause();\n                });\n            }\n            if (!this.writable) {\n                total++;\n                this.once(\"drain\", function () {\n                    --total || pause();\n                });\n            }\n        }\n        else {\n            pause();\n        }\n    }\n    /**\n     * Starts polling cycle.\n     *\n     * @private\n     */\n    poll() {\n        this.polling = true;\n        this.doPoll();\n        this.emitReserved(\"poll\");\n    }\n    /**\n     * Overloads onData to detect payloads.\n     *\n     * @protected\n     */\n    onData(data) {\n        const callback = (packet) => {\n            // if its the first message we consider the transport open\n            if (\"opening\" === this.readyState && packet.type === \"open\") {\n                this.onOpen();\n            }\n            // if its a close packet, we close the ongoing requests\n            if (\"close\" === packet.type) {\n                this.onClose({ description: \"transport closed by the server\" });\n                return false;\n            }\n            // otherwise bypass onData and handle the message\n            this.onPacket(packet);\n        };\n        // decode payload\n        decodePayload(data, this.socket.binaryType).forEach(callback);\n        // if an event did not trigger closing\n        if (\"closed\" !== this.readyState) {\n            // if we got data we're not polling\n            this.polling = false;\n            this.emitReserved(\"pollComplete\");\n            if (\"open\" === this.readyState) {\n                this.poll();\n            }\n            else {\n            }\n        }\n    }\n    /**\n     * For polling, send a close packet.\n     *\n     * @protected\n     */\n    doClose() {\n        const close = () => {\n            this.write([{ type: \"close\" }]);\n        };\n        if (\"open\" === this.readyState) {\n            close();\n        }\n        else {\n            // in case we're trying to close while\n            // handshaking is in progress (GH-164)\n            this.once(\"open\", close);\n        }\n    }\n    /**\n     * Writes a packets payload.\n     *\n     * @param {Array} packets - data packets\n     * @protected\n     */\n    write(packets) {\n        this.writable = false;\n        encodePayload(packets, (data) => {\n            this.doWrite(data, () => {\n                this.writable = true;\n                this.emitReserved(\"drain\");\n            });\n        });\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"https\" : \"http\";\n        const query = this.query || {};\n        // cache busting is forced\n        if (false !== this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        if (!this.supportsBinary && !query.sid) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Creates a request.\n     *\n     * @param {String} method\n     * @private\n     */\n    request(opts = {}) {\n        Object.assign(opts, { xd: this.xd, cookieJar: this.cookieJar }, this.opts);\n        return new Request(this.uri(), opts);\n    }\n    /**\n     * Sends data.\n     *\n     * @param {String} data to send.\n     * @param {Function} called upon flush.\n     * @private\n     */\n    doWrite(data, fn) {\n        const req = this.request({\n            method: \"POST\",\n            data: data,\n        });\n        req.on(\"success\", fn);\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr post error\", xhrStatus, context);\n        });\n    }\n    /**\n     * Starts a poll cycle.\n     *\n     * @private\n     */\n    doPoll() {\n        const req = this.request();\n        req.on(\"data\", this.onData.bind(this));\n        req.on(\"error\", (xhrStatus, context) => {\n            this.onError(\"xhr poll error\", xhrStatus, context);\n        });\n        this.pollXhr = req;\n    }\n}\nexport class Request extends Emitter {\n    /**\n     * Request constructor\n     *\n     * @param {Object} options\n     * @package\n     */\n    constructor(uri, opts) {\n        super();\n        installTimerFunctions(this, opts);\n        this.opts = opts;\n        this.method = opts.method || \"GET\";\n        this.uri = uri;\n        this.data = undefined !== opts.data ? opts.data : null;\n        this.create();\n    }\n    /**\n     * Creates the XHR object and sends the request.\n     *\n     * @private\n     */\n    create() {\n        var _a;\n        const opts = pick(this.opts, \"agent\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"autoUnref\");\n        opts.xdomain = !!this.opts.xd;\n        const xhr = (this.xhr = new XMLHttpRequest(opts));\n        try {\n            xhr.open(this.method, this.uri, true);\n            try {\n                if (this.opts.extraHeaders) {\n                    xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);\n                    for (let i in this.opts.extraHeaders) {\n                        if (this.opts.extraHeaders.hasOwnProperty(i)) {\n                            xhr.setRequestHeader(i, this.opts.extraHeaders[i]);\n                        }\n                    }\n                }\n            }\n            catch (e) { }\n            if (\"POST\" === this.method) {\n                try {\n                    xhr.setRequestHeader(\"Content-type\", \"text/plain;charset=UTF-8\");\n                }\n                catch (e) { }\n            }\n            try {\n                xhr.setRequestHeader(\"Accept\", \"*/*\");\n            }\n            catch (e) { }\n            (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.addCookies(xhr);\n            // ie6 check\n            if (\"withCredentials\" in xhr) {\n                xhr.withCredentials = this.opts.withCredentials;\n            }\n            if (this.opts.requestTimeout) {\n                xhr.timeout = this.opts.requestTimeout;\n            }\n            xhr.onreadystatechange = () => {\n                var _a;\n                if (xhr.readyState === 3) {\n                    (_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.parseCookies(xhr);\n                }\n                if (4 !== xhr.readyState)\n                    return;\n                if (200 === xhr.status || 1223 === xhr.status) {\n                    this.onLoad();\n                }\n                else {\n                    // make sure the `error` event handler that's user-set\n                    // does not throw in the same tick and gets caught here\n                    this.setTimeoutFn(() => {\n                        this.onError(typeof xhr.status === \"number\" ? xhr.status : 0);\n                    }, 0);\n                }\n            };\n            xhr.send(this.data);\n        }\n        catch (e) {\n            // Need to defer since .create() is called directly from the constructor\n            // and thus the 'error' event can only be only bound *after* this exception\n            // occurs.  Therefore, also, we cannot throw here at all.\n            this.setTimeoutFn(() => {\n                this.onError(e);\n            }, 0);\n            return;\n        }\n        if (typeof document !== \"undefined\") {\n            this.index = Request.requestsCount++;\n            Request.requests[this.index] = this;\n        }\n    }\n    /**\n     * Called upon error.\n     *\n     * @private\n     */\n    onError(err) {\n        this.emitReserved(\"error\", err, this.xhr);\n        this.cleanup(true);\n    }\n    /**\n     * Cleans up house.\n     *\n     * @private\n     */\n    cleanup(fromError) {\n        if (\"undefined\" === typeof this.xhr || null === this.xhr) {\n            return;\n        }\n        this.xhr.onreadystatechange = empty;\n        if (fromError) {\n            try {\n                this.xhr.abort();\n            }\n            catch (e) { }\n        }\n        if (typeof document !== \"undefined\") {\n            delete Request.requests[this.index];\n        }\n        this.xhr = null;\n    }\n    /**\n     * Called upon load.\n     *\n     * @private\n     */\n    onLoad() {\n        const data = this.xhr.responseText;\n        if (data !== null) {\n            this.emitReserved(\"data\", data);\n            this.emitReserved(\"success\");\n            this.cleanup();\n        }\n    }\n    /**\n     * Aborts the request.\n     *\n     * @package\n     */\n    abort() {\n        this.cleanup();\n    }\n}\nRequest.requestsCount = 0;\nRequest.requests = {};\n/**\n * Aborts pending requests when unloading the window. This is needed to prevent\n * memory leaks (e.g. when using IE) and to ensure that no spurious error is\n * emitted.\n */\nif (typeof document !== \"undefined\") {\n    // @ts-ignore\n    if (typeof attachEvent === \"function\") {\n        // @ts-ignore\n        attachEvent(\"onunload\", unloadHandler);\n    }\n    else if (typeof addEventListener === \"function\") {\n        const terminationEvent = \"onpagehide\" in globalThis ? \"pagehide\" : \"unload\";\n        addEventListener(terminationEvent, unloadHandler, false);\n    }\n}\nfunction unloadHandler() {\n    for (let i in Request.requests) {\n        if (Request.requests.hasOwnProperty(i)) {\n            Request.requests[i].abort();\n        }\n    }\n}\n", "import { globalThisShim as globalThis } from \"../globalThis.js\";\nexport const nextTick = (() => {\n    const isPromiseAvailable = typeof Promise === \"function\" && typeof Promise.resolve === \"function\";\n    if (isPromiseAvailable) {\n        return (cb) => Promise.resolve().then(cb);\n    }\n    else {\n        return (cb, setTimeoutFn) => setTimeoutFn(cb, 0);\n    }\n})();\nexport const WebSocket = globalThis.WebSocket || globalThis.MozWebSocket;\nexport const usingBrowserWebSocket = true;\nexport const defaultBinaryType = \"arraybuffer\";\n", "import { Transport } from \"../transport.js\";\nimport { yeast } from \"../contrib/yeast.js\";\nimport { pick } from \"../util.js\";\nimport { nextTick, usingBrowserWebSocket, WebSocket, } from \"./websocket-constructor.js\";\nimport { encodePacket } from \"engine.io-parser\";\n// detect ReactNative environment\nconst isReactNative = typeof navigator !== \"undefined\" &&\n    typeof navigator.product === \"string\" &&\n    navigator.product.toLowerCase() === \"reactnative\";\nexport class WS extends Transport {\n    /**\n     * WebSocket transport constructor.\n     *\n     * @param {Object} opts - connection options\n     * @protected\n     */\n    constructor(opts) {\n        super(opts);\n        this.supportsBinary = !opts.forceBase64;\n    }\n    get name() {\n        return \"websocket\";\n    }\n    doOpen() {\n        if (!this.check()) {\n            // let probe timeout\n            return;\n        }\n        const uri = this.uri();\n        const protocols = this.opts.protocols;\n        // React Native only supports the 'headers' option, and will print a warning if anything else is passed\n        const opts = isReactNative\n            ? {}\n            : pick(this.opts, \"agent\", \"perMessageDeflate\", \"pfx\", \"key\", \"passphrase\", \"cert\", \"ca\", \"ciphers\", \"rejectUnauthorized\", \"localAddress\", \"protocolVersion\", \"origin\", \"maxPayload\", \"family\", \"checkServerIdentity\");\n        if (this.opts.extraHeaders) {\n            opts.headers = this.opts.extraHeaders;\n        }\n        try {\n            this.ws =\n                usingBrowserWebSocket && !isReactNative\n                    ? protocols\n                        ? new WebSocket(uri, protocols)\n                        : new WebSocket(uri)\n                    : new WebSocket(uri, protocols, opts);\n        }\n        catch (err) {\n            return this.emitReserved(\"error\", err);\n        }\n        this.ws.binaryType = this.socket.binaryType;\n        this.addEventListeners();\n    }\n    /**\n     * Adds event listeners to the socket\n     *\n     * @private\n     */\n    addEventListeners() {\n        this.ws.onopen = () => {\n            if (this.opts.autoUnref) {\n                this.ws._socket.unref();\n            }\n            this.onOpen();\n        };\n        this.ws.onclose = (closeEvent) => this.onClose({\n            description: \"websocket connection closed\",\n            context: closeEvent,\n        });\n        this.ws.onmessage = (ev) => this.onData(ev.data);\n        this.ws.onerror = (e) => this.onError(\"websocket error\", e);\n    }\n    write(packets) {\n        this.writable = false;\n        // encodePacket efficient as it uses WS framing\n        // no need for encodePayload\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            encodePacket(packet, this.supportsBinary, (data) => {\n                // always create a new object (GH-437)\n                const opts = {};\n                if (!usingBrowserWebSocket) {\n                    if (packet.options) {\n                        opts.compress = packet.options.compress;\n                    }\n                    if (this.opts.perMessageDeflate) {\n                        const len = \n                        // @ts-ignore\n                        \"string\" === typeof data ? Buffer.byteLength(data) : data.length;\n                        if (len < this.opts.perMessageDeflate.threshold) {\n                            opts.compress = false;\n                        }\n                    }\n                }\n                // Sometimes the websocket has already been closed but the browser didn't\n                // have a chance of informing us about it yet, in that case send will\n                // throw an error\n                try {\n                    if (usingBrowserWebSocket) {\n                        // TypeError is thrown when passing the second argument on Safari\n                        this.ws.send(data);\n                    }\n                    else {\n                        this.ws.send(data, opts);\n                    }\n                }\n                catch (e) {\n                }\n                if (lastPacket) {\n                    // fake drain\n                    // defer to next tick to allow Socket to clear writeBuffer\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        if (typeof this.ws !== \"undefined\") {\n            this.ws.close();\n            this.ws = null;\n        }\n    }\n    /**\n     * Generates uri for connection.\n     *\n     * @private\n     */\n    uri() {\n        const schema = this.opts.secure ? \"wss\" : \"ws\";\n        const query = this.query || {};\n        // append timestamp to URI\n        if (this.opts.timestampRequests) {\n            query[this.opts.timestampParam] = yeast();\n        }\n        // communicate binary support capabilities\n        if (!this.supportsBinary) {\n            query.b64 = 1;\n        }\n        return this.createUri(schema, query);\n    }\n    /**\n     * Feature detection for WebSocket.\n     *\n     * @return {Boolean} whether this transport is available.\n     * @private\n     */\n    check() {\n        return !!WebSocket;\n    }\n}\n", "import { Transport } from \"../transport.js\";\nimport { nextTick } from \"./websocket-constructor.js\";\nimport { createPacketDecoderStream, createPacketEncoderStream, } from \"engine.io-parser\";\nexport class WT extends Transport {\n    get name() {\n        return \"webtransport\";\n    }\n    doOpen() {\n        // @ts-ignore\n        if (typeof WebTransport !== \"function\") {\n            return;\n        }\n        // @ts-ignore\n        this.transport = new WebTransport(this.createUri(\"https\"), this.opts.transportOptions[this.name]);\n        this.transport.closed\n            .then(() => {\n            this.onClose();\n        })\n            .catch((err) => {\n            this.onError(\"webtransport error\", err);\n        });\n        // note: we could have used async/await, but that would require some additional polyfills\n        this.transport.ready.then(() => {\n            this.transport.createBidirectionalStream().then((stream) => {\n                const decoderStream = createPacketDecoderStream(Number.MAX_SAFE_INTEGER, this.socket.binaryType);\n                const reader = stream.readable.pipeThrough(decoderStream).getReader();\n                const encoderStream = createPacketEncoderStream();\n                encoderStream.readable.pipeTo(stream.writable);\n                this.writer = encoderStream.writable.getWriter();\n                const read = () => {\n                    reader\n                        .read()\n                        .then(({ done, value }) => {\n                        if (done) {\n                            return;\n                        }\n                        this.onPacket(value);\n                        read();\n                    })\n                        .catch((err) => {\n                    });\n                };\n                read();\n                const packet = { type: \"open\" };\n                if (this.query.sid) {\n                    packet.data = `{\"sid\":\"${this.query.sid}\"}`;\n                }\n                this.writer.write(packet).then(() => this.onOpen());\n            });\n        });\n    }\n    write(packets) {\n        this.writable = false;\n        for (let i = 0; i < packets.length; i++) {\n            const packet = packets[i];\n            const lastPacket = i === packets.length - 1;\n            this.writer.write(packet).then(() => {\n                if (lastPacket) {\n                    nextTick(() => {\n                        this.writable = true;\n                        this.emitReserved(\"drain\");\n                    }, this.setTimeoutFn);\n                }\n            });\n        }\n    }\n    doClose() {\n        var _a;\n        (_a = this.transport) === null || _a === void 0 ? void 0 : _a.close();\n    }\n}\n", "import { Polling } from \"./polling.js\";\nimport { WS } from \"./websocket.js\";\nimport { WT } from \"./webtransport.js\";\nexport const transports = {\n    websocket: WS,\n    webtransport: WT,\n    polling: Polling,\n};\n", "// imported from https://github.com/galkn/parseuri\n/**\n * Parses a URI\n *\n * Note: we could also have used the built-in URL object, but it isn't supported on all platforms.\n *\n * See:\n * - https://developer.mozilla.org/en-US/docs/Web/API/URL\n * - https://caniuse.com/url\n * - https://www.rfc-editor.org/rfc/rfc3986#appendix-B\n *\n * History of the parse() method:\n * - first commit: https://github.com/socketio/socket.io-client/commit/4ee1d5d94b3906a9c052b459f1a818b15f38f91c\n * - export into its own module: https://github.com/socketio/engine.io-client/commit/de2c561e4564efeb78f1bdb1ba39ef81b2822cb3\n * - reimport: https://github.com/socketio/engine.io-client/commit/df32277c3f6d622eec5ed09f493cae3f3391d242\n *\n * @author Steven Levithan <stevenlevithan.com> (MIT license)\n * @api private\n */\nconst re = /^(?:(?![^:@\\/?#]+:[^:@\\/]*@)(http|https|ws|wss):\\/\\/)?((?:(([^:@\\/?#]*)(?::([^:@\\/?#]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\\/?#]*)(?::(\\d*))?)(((\\/(?:[^?#](?![^?#\\/]*\\.[^?#\\/.]+(?:[?#]|$)))*\\/?)?([^?#\\/]*))(?:\\?([^#]*))?(?:#(.*))?)/;\nconst parts = [\n    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'\n];\nexport function parse(str) {\n    if (str.length > 2000) {\n        throw \"URI too long\";\n    }\n    const src = str, b = str.indexOf('['), e = str.indexOf(']');\n    if (b != -1 && e != -1) {\n        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);\n    }\n    let m = re.exec(str || ''), uri = {}, i = 14;\n    while (i--) {\n        uri[parts[i]] = m[i] || '';\n    }\n    if (b != -1 && e != -1) {\n        uri.source = src;\n        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');\n        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');\n        uri.ipv6uri = true;\n    }\n    uri.pathNames = pathNames(uri, uri['path']);\n    uri.queryKey = queryKey(uri, uri['query']);\n    return uri;\n}\nfunction pathNames(obj, path) {\n    const regx = /\\/{2,9}/g, names = path.replace(regx, \"/\").split(\"/\");\n    if (path.slice(0, 1) == '/' || path.length === 0) {\n        names.splice(0, 1);\n    }\n    if (path.slice(-1) == '/') {\n        names.splice(names.length - 1, 1);\n    }\n    return names;\n}\nfunction queryKey(uri, query) {\n    const data = {};\n    query.replace(/(?:^|&)([^&=]*)=?([^&]*)/g, function ($0, $1, $2) {\n        if ($1) {\n            data[$1] = $2;\n        }\n    });\n    return data;\n}\n", "import { transports } from \"./transports/index.js\";\nimport { installTimerFunctions, byteLength } from \"./util.js\";\nimport { decode } from \"./contrib/parseqs.js\";\nimport { parse } from \"./contrib/parseuri.js\";\nimport { Emitter } from \"@socket.io/component-emitter\";\nimport { protocol } from \"engine.io-parser\";\nimport { defaultBinaryType } from \"./transports/websocket-constructor.js\";\nexport class Socket extends Emitter {\n    /**\n     * Socket constructor.\n     *\n     * @param {String|Object} uri - uri or options\n     * @param {Object} opts - options\n     */\n    constructor(uri, opts = {}) {\n        super();\n        this.binaryType = defaultBinaryType;\n        this.writeBuffer = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = null;\n        }\n        if (uri) {\n            uri = parse(uri);\n            opts.hostname = uri.host;\n            opts.secure = uri.protocol === \"https\" || uri.protocol === \"wss\";\n            opts.port = uri.port;\n            if (uri.query)\n                opts.query = uri.query;\n        }\n        else if (opts.host) {\n            opts.hostname = parse(opts.host).host;\n        }\n        installTimerFunctions(this, opts);\n        this.secure =\n            null != opts.secure\n                ? opts.secure\n                : typeof location !== \"undefined\" && \"https:\" === location.protocol;\n        if (opts.hostname && !opts.port) {\n            // if no port is specified manually, use the protocol default\n            opts.port = this.secure ? \"443\" : \"80\";\n        }\n        this.hostname =\n            opts.hostname ||\n                (typeof location !== \"undefined\" ? location.hostname : \"localhost\");\n        this.port =\n            opts.port ||\n                (typeof location !== \"undefined\" && location.port\n                    ? location.port\n                    : this.secure\n                        ? \"443\"\n                        : \"80\");\n        this.transports = opts.transports || [\n            \"polling\",\n            \"websocket\",\n            \"webtransport\",\n        ];\n        this.writeBuffer = [];\n        this.prevBufferLen = 0;\n        this.opts = Object.assign({\n            path: \"/engine.io\",\n            agent: false,\n            withCredentials: false,\n            upgrade: true,\n            timestampParam: \"t\",\n            rememberUpgrade: false,\n            addTrailingSlash: true,\n            rejectUnauthorized: true,\n            perMessageDeflate: {\n                threshold: 1024,\n            },\n            transportOptions: {},\n            closeOnBeforeunload: false,\n        }, opts);\n        this.opts.path =\n            this.opts.path.replace(/\\/$/, \"\") +\n                (this.opts.addTrailingSlash ? \"/\" : \"\");\n        if (typeof this.opts.query === \"string\") {\n            this.opts.query = decode(this.opts.query);\n        }\n        // set on handshake\n        this.id = null;\n        this.upgrades = null;\n        this.pingInterval = null;\n        this.pingTimeout = null;\n        // set on heartbeat\n        this.pingTimeoutTimer = null;\n        if (typeof addEventListener === \"function\") {\n            if (this.opts.closeOnBeforeunload) {\n                // Firefox closes the connection when the \"beforeunload\" event is emitted but not Chrome. This event listener\n                // ensures every browser behaves the same (no \"disconnect\" event at the Socket.IO level when the page is\n                // closed/reloaded)\n                this.beforeunloadEventListener = () => {\n                    if (this.transport) {\n                        // silently close the transport\n                        this.transport.removeAllListeners();\n                        this.transport.close();\n                    }\n                };\n                addEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n            }\n            if (this.hostname !== \"localhost\") {\n                this.offlineEventListener = () => {\n                    this.onClose(\"transport close\", {\n                        description: \"network connection lost\",\n                    });\n                };\n                addEventListener(\"offline\", this.offlineEventListener, false);\n            }\n        }\n        this.open();\n    }\n    /**\n     * Creates transport of the given type.\n     *\n     * @param {String} name - transport name\n     * @return {Transport}\n     * @private\n     */\n    createTransport(name) {\n        const query = Object.assign({}, this.opts.query);\n        // append engine.io protocol identifier\n        query.EIO = protocol;\n        // transport name\n        query.transport = name;\n        // session id if we already have one\n        if (this.id)\n            query.sid = this.id;\n        const opts = Object.assign({}, this.opts, {\n            query,\n            socket: this,\n            hostname: this.hostname,\n            secure: this.secure,\n            port: this.port,\n        }, this.opts.transportOptions[name]);\n        return new transports[name](opts);\n    }\n    /**\n     * Initializes transport to use and starts probe.\n     *\n     * @private\n     */\n    open() {\n        let transport;\n        if (this.opts.rememberUpgrade &&\n            Socket.priorWebsocketSuccess &&\n            this.transports.indexOf(\"websocket\") !== -1) {\n            transport = \"websocket\";\n        }\n        else if (0 === this.transports.length) {\n            // Emit error on next tick so it can be listened to\n            this.setTimeoutFn(() => {\n                this.emitReserved(\"error\", \"No transports available\");\n            }, 0);\n            return;\n        }\n        else {\n            transport = this.transports[0];\n        }\n        this.readyState = \"opening\";\n        // Retry with the next transport if the transport is disabled (jsonp: false)\n        try {\n            transport = this.createTransport(transport);\n        }\n        catch (e) {\n            this.transports.shift();\n            this.open();\n            return;\n        }\n        transport.open();\n        this.setTransport(transport);\n    }\n    /**\n     * Sets the current transport. Disables the existing one (if any).\n     *\n     * @private\n     */\n    setTransport(transport) {\n        if (this.transport) {\n            this.transport.removeAllListeners();\n        }\n        // set up transport\n        this.transport = transport;\n        // set up transport listeners\n        transport\n            .on(\"drain\", this.onDrain.bind(this))\n            .on(\"packet\", this.onPacket.bind(this))\n            .on(\"error\", this.onError.bind(this))\n            .on(\"close\", (reason) => this.onClose(\"transport close\", reason));\n    }\n    /**\n     * Probes a transport.\n     *\n     * @param {String} name - transport name\n     * @private\n     */\n    probe(name) {\n        let transport = this.createTransport(name);\n        let failed = false;\n        Socket.priorWebsocketSuccess = false;\n        const onTransportOpen = () => {\n            if (failed)\n                return;\n            transport.send([{ type: \"ping\", data: \"probe\" }]);\n            transport.once(\"packet\", (msg) => {\n                if (failed)\n                    return;\n                if (\"pong\" === msg.type && \"probe\" === msg.data) {\n                    this.upgrading = true;\n                    this.emitReserved(\"upgrading\", transport);\n                    if (!transport)\n                        return;\n                    Socket.priorWebsocketSuccess = \"websocket\" === transport.name;\n                    this.transport.pause(() => {\n                        if (failed)\n                            return;\n                        if (\"closed\" === this.readyState)\n                            return;\n                        cleanup();\n                        this.setTransport(transport);\n                        transport.send([{ type: \"upgrade\" }]);\n                        this.emitReserved(\"upgrade\", transport);\n                        transport = null;\n                        this.upgrading = false;\n                        this.flush();\n                    });\n                }\n                else {\n                    const err = new Error(\"probe error\");\n                    // @ts-ignore\n                    err.transport = transport.name;\n                    this.emitReserved(\"upgradeError\", err);\n                }\n            });\n        };\n        function freezeTransport() {\n            if (failed)\n                return;\n            // Any callback called by transport should be ignored since now\n            failed = true;\n            cleanup();\n            transport.close();\n            transport = null;\n        }\n        // Handle any error that happens while probing\n        const onerror = (err) => {\n            const error = new Error(\"probe error: \" + err);\n            // @ts-ignore\n            error.transport = transport.name;\n            freezeTransport();\n            this.emitReserved(\"upgradeError\", error);\n        };\n        function onTransportClose() {\n            onerror(\"transport closed\");\n        }\n        // When the socket is closed while we're probing\n        function onclose() {\n            onerror(\"socket closed\");\n        }\n        // When the socket is upgraded while we're probing\n        function onupgrade(to) {\n            if (transport && to.name !== transport.name) {\n                freezeTransport();\n            }\n        }\n        // Remove all listeners on the transport and on self\n        const cleanup = () => {\n            transport.removeListener(\"open\", onTransportOpen);\n            transport.removeListener(\"error\", onerror);\n            transport.removeListener(\"close\", onTransportClose);\n            this.off(\"close\", onclose);\n            this.off(\"upgrading\", onupgrade);\n        };\n        transport.once(\"open\", onTransportOpen);\n        transport.once(\"error\", onerror);\n        transport.once(\"close\", onTransportClose);\n        this.once(\"close\", onclose);\n        this.once(\"upgrading\", onupgrade);\n        if (this.upgrades.indexOf(\"webtransport\") !== -1 &&\n            name !== \"webtransport\") {\n            // favor WebTransport\n            this.setTimeoutFn(() => {\n                if (!failed) {\n                    transport.open();\n                }\n            }, 200);\n        }\n        else {\n            transport.open();\n        }\n    }\n    /**\n     * Called when connection is deemed open.\n     *\n     * @private\n     */\n    onOpen() {\n        this.readyState = \"open\";\n        Socket.priorWebsocketSuccess = \"websocket\" === this.transport.name;\n        this.emitReserved(\"open\");\n        this.flush();\n        // we check for `readyState` in case an `open`\n        // listener already closed the socket\n        if (\"open\" === this.readyState && this.opts.upgrade) {\n            let i = 0;\n            const l = this.upgrades.length;\n            for (; i < l; i++) {\n                this.probe(this.upgrades[i]);\n            }\n        }\n    }\n    /**\n     * Handles a packet.\n     *\n     * @private\n     */\n    onPacket(packet) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            this.emitReserved(\"packet\", packet);\n            // Socket is live - any packet counts\n            this.emitReserved(\"heartbeat\");\n            this.resetPingTimeout();\n            switch (packet.type) {\n                case \"open\":\n                    this.onHandshake(JSON.parse(packet.data));\n                    break;\n                case \"ping\":\n                    this.sendPacket(\"pong\");\n                    this.emitReserved(\"ping\");\n                    this.emitReserved(\"pong\");\n                    break;\n                case \"error\":\n                    const err = new Error(\"server error\");\n                    // @ts-ignore\n                    err.code = packet.data;\n                    this.onError(err);\n                    break;\n                case \"message\":\n                    this.emitReserved(\"data\", packet.data);\n                    this.emitReserved(\"message\", packet.data);\n                    break;\n            }\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon handshake completion.\n     *\n     * @param {Object} data - handshake obj\n     * @private\n     */\n    onHandshake(data) {\n        this.emitReserved(\"handshake\", data);\n        this.id = data.sid;\n        this.transport.query.sid = data.sid;\n        this.upgrades = this.filterUpgrades(data.upgrades);\n        this.pingInterval = data.pingInterval;\n        this.pingTimeout = data.pingTimeout;\n        this.maxPayload = data.maxPayload;\n        this.onOpen();\n        // In case open handler closes socket\n        if (\"closed\" === this.readyState)\n            return;\n        this.resetPingTimeout();\n    }\n    /**\n     * Sets and resets ping timeout timer based on server pings.\n     *\n     * @private\n     */\n    resetPingTimeout() {\n        this.clearTimeoutFn(this.pingTimeoutTimer);\n        this.pingTimeoutTimer = this.setTimeoutFn(() => {\n            this.onClose(\"ping timeout\");\n        }, this.pingInterval + this.pingTimeout);\n        if (this.opts.autoUnref) {\n            this.pingTimeoutTimer.unref();\n        }\n    }\n    /**\n     * Called on `drain` event\n     *\n     * @private\n     */\n    onDrain() {\n        this.writeBuffer.splice(0, this.prevBufferLen);\n        // setting prevBufferLen = 0 is very important\n        // for example, when upgrading, upgrade packet is sent over,\n        // and a nonzero prevBufferLen could cause problems on `drain`\n        this.prevBufferLen = 0;\n        if (0 === this.writeBuffer.length) {\n            this.emitReserved(\"drain\");\n        }\n        else {\n            this.flush();\n        }\n    }\n    /**\n     * Flush write buffers.\n     *\n     * @private\n     */\n    flush() {\n        if (\"closed\" !== this.readyState &&\n            this.transport.writable &&\n            !this.upgrading &&\n            this.writeBuffer.length) {\n            const packets = this.getWritablePackets();\n            this.transport.send(packets);\n            // keep track of current length of writeBuffer\n            // splice writeBuffer and callbackBuffer on `drain`\n            this.prevBufferLen = packets.length;\n            this.emitReserved(\"flush\");\n        }\n    }\n    /**\n     * Ensure the encoded size of the writeBuffer is below the maxPayload value sent by the server (only for HTTP\n     * long-polling)\n     *\n     * @private\n     */\n    getWritablePackets() {\n        const shouldCheckPayloadSize = this.maxPayload &&\n            this.transport.name === \"polling\" &&\n            this.writeBuffer.length > 1;\n        if (!shouldCheckPayloadSize) {\n            return this.writeBuffer;\n        }\n        let payloadSize = 1; // first packet type\n        for (let i = 0; i < this.writeBuffer.length; i++) {\n            const data = this.writeBuffer[i].data;\n            if (data) {\n                payloadSize += byteLength(data);\n            }\n            if (i > 0 && payloadSize > this.maxPayload) {\n                return this.writeBuffer.slice(0, i);\n            }\n            payloadSize += 2; // separator + packet type\n        }\n        return this.writeBuffer;\n    }\n    /**\n     * Sends a message.\n     *\n     * @param {String} msg - message.\n     * @param {Object} options.\n     * @param {Function} callback function.\n     * @return {Socket} for chaining.\n     */\n    write(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    send(msg, options, fn) {\n        this.sendPacket(\"message\", msg, options, fn);\n        return this;\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param {String} type: packet type.\n     * @param {String} data.\n     * @param {Object} options.\n     * @param {Function} fn - callback function.\n     * @private\n     */\n    sendPacket(type, data, options, fn) {\n        if (\"function\" === typeof data) {\n            fn = data;\n            data = undefined;\n        }\n        if (\"function\" === typeof options) {\n            fn = options;\n            options = null;\n        }\n        if (\"closing\" === this.readyState || \"closed\" === this.readyState) {\n            return;\n        }\n        options = options || {};\n        options.compress = false !== options.compress;\n        const packet = {\n            type: type,\n            data: data,\n            options: options,\n        };\n        this.emitReserved(\"packetCreate\", packet);\n        this.writeBuffer.push(packet);\n        if (fn)\n            this.once(\"flush\", fn);\n        this.flush();\n    }\n    /**\n     * Closes the connection.\n     */\n    close() {\n        const close = () => {\n            this.onClose(\"forced close\");\n            this.transport.close();\n        };\n        const cleanupAndClose = () => {\n            this.off(\"upgrade\", cleanupAndClose);\n            this.off(\"upgradeError\", cleanupAndClose);\n            close();\n        };\n        const waitForUpgrade = () => {\n            // wait for upgrade to finish since we can't send packets while pausing a transport\n            this.once(\"upgrade\", cleanupAndClose);\n            this.once(\"upgradeError\", cleanupAndClose);\n        };\n        if (\"opening\" === this.readyState || \"open\" === this.readyState) {\n            this.readyState = \"closing\";\n            if (this.writeBuffer.length) {\n                this.once(\"drain\", () => {\n                    if (this.upgrading) {\n                        waitForUpgrade();\n                    }\n                    else {\n                        close();\n                    }\n                });\n            }\n            else if (this.upgrading) {\n                waitForUpgrade();\n            }\n            else {\n                close();\n            }\n        }\n        return this;\n    }\n    /**\n     * Called upon transport error\n     *\n     * @private\n     */\n    onError(err) {\n        Socket.priorWebsocketSuccess = false;\n        this.emitReserved(\"error\", err);\n        this.onClose(\"transport error\", err);\n    }\n    /**\n     * Called upon transport close.\n     *\n     * @private\n     */\n    onClose(reason, description) {\n        if (\"opening\" === this.readyState ||\n            \"open\" === this.readyState ||\n            \"closing\" === this.readyState) {\n            // clear timers\n            this.clearTimeoutFn(this.pingTimeoutTimer);\n            // stop event from firing again for transport\n            this.transport.removeAllListeners(\"close\");\n            // ensure transport won't stay open\n            this.transport.close();\n            // ignore further transport communication\n            this.transport.removeAllListeners();\n            if (typeof removeEventListener === \"function\") {\n                removeEventListener(\"beforeunload\", this.beforeunloadEventListener, false);\n                removeEventListener(\"offline\", this.offlineEventListener, false);\n            }\n            // set ready state\n            this.readyState = \"closed\";\n            // clear session id\n            this.id = null;\n            // emit close event\n            this.emitReserved(\"close\", reason, description);\n            // clean buffers after, so users can still\n            // grab the buffers on `close` event\n            this.writeBuffer = [];\n            this.prevBufferLen = 0;\n        }\n    }\n    /**\n     * Filters upgrades, returning only those matching client transports.\n     *\n     * @param {Array} upgrades - server upgrades\n     * @private\n     */\n    filterUpgrades(upgrades) {\n        const filteredUpgrades = [];\n        let i = 0;\n        const j = upgrades.length;\n        for (; i < j; i++) {\n            if (~this.transports.indexOf(upgrades[i]))\n                filteredUpgrades.push(upgrades[i]);\n        }\n        return filteredUpgrades;\n    }\n}\nSocket.protocol = protocol;\n", "import { Socket } from \"./socket.js\";\nexport { Socket };\nexport const protocol = Socket.protocol;\nexport { Transport, TransportError } from \"./transport.js\";\nexport { transports } from \"./transports/index.js\";\nexport { installTimerFunctions } from \"./util.js\";\nexport { parse } from \"./contrib/parseuri.js\";\nexport { nextTick } from \"./transports/websocket-constructor.js\";\n", "import { parse } from \"engine.io-client\";\n/**\n * URL parser.\n *\n * @param uri - url\n * @param path - the request path of the connection\n * @param loc - An object meant to mimic window.location.\n *        Defaults to window.location.\n * @public\n */\nexport function url(uri, path = \"\", loc) {\n    let obj = uri;\n    // default to window.location\n    loc = loc || (typeof location !== \"undefined\" && location);\n    if (null == uri)\n        uri = loc.protocol + \"//\" + loc.host;\n    // relative path support\n    if (typeof uri === \"string\") {\n        if (\"/\" === uri.charAt(0)) {\n            if (\"/\" === uri.charAt(1)) {\n                uri = loc.protocol + uri;\n            }\n            else {\n                uri = loc.host + uri;\n            }\n        }\n        if (!/^(https?|wss?):\\/\\//.test(uri)) {\n            if (\"undefined\" !== typeof loc) {\n                uri = loc.protocol + \"//\" + uri;\n            }\n            else {\n                uri = \"https://\" + uri;\n            }\n        }\n        // parse\n        obj = parse(uri);\n    }\n    // make sure we treat `localhost:80` and `localhost` equally\n    if (!obj.port) {\n        if (/^(http|ws)$/.test(obj.protocol)) {\n            obj.port = \"80\";\n        }\n        else if (/^(http|ws)s$/.test(obj.protocol)) {\n            obj.port = \"443\";\n        }\n    }\n    obj.path = obj.path || \"/\";\n    const ipv6 = obj.host.indexOf(\":\") !== -1;\n    const host = ipv6 ? \"[\" + obj.host + \"]\" : obj.host;\n    // define unique id\n    obj.id = obj.protocol + \"://\" + host + \":\" + obj.port + path;\n    // define href\n    obj.href =\n        obj.protocol +\n            \"://\" +\n            host +\n            (loc && loc.port === obj.port ? \"\" : \":\" + obj.port);\n    return obj;\n}\n", "import { Emitter } from \"@socket.io/component-emitter\";\nimport { deconstructPacket, reconstructPacket } from \"./binary.js\";\nimport { isBinary, hasBinary } from \"./is-binary.js\";\n/**\n * These strings must not be used as event names, as they have a special meaning.\n */\nconst RESERVED_EVENTS = [\n    \"connect\",\n    \"connect_error\",\n    \"disconnect\",\n    \"disconnecting\",\n    \"newListener\",\n    \"removeListener\", // used by the Node.js EventEmitter\n];\n/**\n * Protocol version.\n *\n * @public\n */\nexport const protocol = 5;\nexport var PacketType;\n(function (PacketType) {\n    PacketType[PacketType[\"CONNECT\"] = 0] = \"CONNECT\";\n    PacketType[PacketType[\"DISCONNECT\"] = 1] = \"DISCONNECT\";\n    PacketType[PacketType[\"EVENT\"] = 2] = \"EVENT\";\n    PacketType[PacketType[\"ACK\"] = 3] = \"ACK\";\n    PacketType[PacketType[\"CONNECT_ERROR\"] = 4] = \"CONNECT_ERROR\";\n    PacketType[PacketType[\"BINARY_EVENT\"] = 5] = \"BINARY_EVENT\";\n    PacketType[PacketType[\"BINARY_ACK\"] = 6] = \"BINARY_ACK\";\n})(PacketType || (PacketType = {}));\n/**\n * A socket.io Encoder instance\n */\nexport class Encoder {\n    /**\n     * Encoder constructor\n     *\n     * @param {function} replacer - custom replacer to pass down to JSON.parse\n     */\n    constructor(replacer) {\n        this.replacer = replacer;\n    }\n    /**\n     * Encode a packet as a single string if non-binary, or as a\n     * buffer sequence, depending on packet type.\n     *\n     * @param {Object} obj - packet object\n     */\n    encode(obj) {\n        if (obj.type === PacketType.EVENT || obj.type === PacketType.ACK) {\n            if (hasBinary(obj)) {\n                return this.encodeAsBinary({\n                    type: obj.type === PacketType.EVENT\n                        ? PacketType.BINARY_EVENT\n                        : PacketType.BINARY_ACK,\n                    nsp: obj.nsp,\n                    data: obj.data,\n                    id: obj.id,\n                });\n            }\n        }\n        return [this.encodeAsString(obj)];\n    }\n    /**\n     * Encode packet as string.\n     */\n    encodeAsString(obj) {\n        // first is type\n        let str = \"\" + obj.type;\n        // attachments if we have them\n        if (obj.type === PacketType.BINARY_EVENT ||\n            obj.type === PacketType.BINARY_ACK) {\n            str += obj.attachments + \"-\";\n        }\n        // if we have a namespace other than `/`\n        // we append it followed by a comma `,`\n        if (obj.nsp && \"/\" !== obj.nsp) {\n            str += obj.nsp + \",\";\n        }\n        // immediately followed by the id\n        if (null != obj.id) {\n            str += obj.id;\n        }\n        // json data\n        if (null != obj.data) {\n            str += JSON.stringify(obj.data, this.replacer);\n        }\n        return str;\n    }\n    /**\n     * Encode packet as 'buffer sequence' by removing blobs, and\n     * deconstructing packet into object with placeholders and\n     * a list of buffers.\n     */\n    encodeAsBinary(obj) {\n        const deconstruction = deconstructPacket(obj);\n        const pack = this.encodeAsString(deconstruction.packet);\n        const buffers = deconstruction.buffers;\n        buffers.unshift(pack); // add packet info to beginning of data list\n        return buffers; // write all the buffers\n    }\n}\n// see https://stackoverflow.com/questions/8511281/check-if-a-value-is-an-object-in-javascript\nfunction isObject(value) {\n    return Object.prototype.toString.call(value) === \"[object Object]\";\n}\n/**\n * A socket.io Decoder instance\n *\n * @return {Object} decoder\n */\nexport class Decoder extends Emitter {\n    /**\n     * Decoder constructor\n     *\n     * @param {function} reviver - custom reviver to pass down to JSON.stringify\n     */\n    constructor(reviver) {\n        super();\n        this.reviver = reviver;\n    }\n    /**\n     * Decodes an encoded packet string into packet JSON.\n     *\n     * @param {String} obj - encoded packet\n     */\n    add(obj) {\n        let packet;\n        if (typeof obj === \"string\") {\n            if (this.reconstructor) {\n                throw new Error(\"got plaintext data when reconstructing a packet\");\n            }\n            packet = this.decodeString(obj);\n            const isBinaryEvent = packet.type === PacketType.BINARY_EVENT;\n            if (isBinaryEvent || packet.type === PacketType.BINARY_ACK) {\n                packet.type = isBinaryEvent ? PacketType.EVENT : PacketType.ACK;\n                // binary packet's json\n                this.reconstructor = new BinaryReconstructor(packet);\n                // no attachments, labeled binary but no binary data to follow\n                if (packet.attachments === 0) {\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n            else {\n                // non-binary full packet\n                super.emitReserved(\"decoded\", packet);\n            }\n        }\n        else if (isBinary(obj) || obj.base64) {\n            // raw binary data\n            if (!this.reconstructor) {\n                throw new Error(\"got binary data when not reconstructing a packet\");\n            }\n            else {\n                packet = this.reconstructor.takeBinaryData(obj);\n                if (packet) {\n                    // received final buffer\n                    this.reconstructor = null;\n                    super.emitReserved(\"decoded\", packet);\n                }\n            }\n        }\n        else {\n            throw new Error(\"Unknown type: \" + obj);\n        }\n    }\n    /**\n     * Decode a packet String (JSON data)\n     *\n     * @param {String} str\n     * @return {Object} packet\n     */\n    decodeString(str) {\n        let i = 0;\n        // look up type\n        const p = {\n            type: Number(str.charAt(0)),\n        };\n        if (PacketType[p.type] === undefined) {\n            throw new Error(\"unknown packet type \" + p.type);\n        }\n        // look up attachments if type binary\n        if (p.type === PacketType.BINARY_EVENT ||\n            p.type === PacketType.BINARY_ACK) {\n            const start = i + 1;\n            while (str.charAt(++i) !== \"-\" && i != str.length) { }\n            const buf = str.substring(start, i);\n            if (buf != Number(buf) || str.charAt(i) !== \"-\") {\n                throw new Error(\"Illegal attachments\");\n            }\n            p.attachments = Number(buf);\n        }\n        // look up namespace (if any)\n        if (\"/\" === str.charAt(i + 1)) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (\",\" === c)\n                    break;\n                if (i === str.length)\n                    break;\n            }\n            p.nsp = str.substring(start, i);\n        }\n        else {\n            p.nsp = \"/\";\n        }\n        // look up id\n        const next = str.charAt(i + 1);\n        if (\"\" !== next && Number(next) == next) {\n            const start = i + 1;\n            while (++i) {\n                const c = str.charAt(i);\n                if (null == c || Number(c) != c) {\n                    --i;\n                    break;\n                }\n                if (i === str.length)\n                    break;\n            }\n            p.id = Number(str.substring(start, i + 1));\n        }\n        // look up json data\n        if (str.charAt(++i)) {\n            const payload = this.tryParse(str.substr(i));\n            if (Decoder.isPayloadValid(p.type, payload)) {\n                p.data = payload;\n            }\n            else {\n                throw new Error(\"invalid payload\");\n            }\n        }\n        return p;\n    }\n    tryParse(str) {\n        try {\n            return JSON.parse(str, this.reviver);\n        }\n        catch (e) {\n            return false;\n        }\n    }\n    static isPayloadValid(type, payload) {\n        switch (type) {\n            case PacketType.CONNECT:\n                return isObject(payload);\n            case PacketType.DISCONNECT:\n                return payload === undefined;\n            case PacketType.CONNECT_ERROR:\n                return typeof payload === \"string\" || isObject(payload);\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                return (Array.isArray(payload) &&\n                    (typeof payload[0] === \"number\" ||\n                        (typeof payload[0] === \"string\" &&\n                            RESERVED_EVENTS.indexOf(payload[0]) === -1)));\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                return Array.isArray(payload);\n        }\n    }\n    /**\n     * Deallocates a parser's resources\n     */\n    destroy() {\n        if (this.reconstructor) {\n            this.reconstructor.finishedReconstruction();\n            this.reconstructor = null;\n        }\n    }\n}\n/**\n * A manager of a binary event's 'buffer sequence'. Should\n * be constructed whenever a packet of type BINARY_EVENT is\n * decoded.\n *\n * @param {Object} packet\n * @return {BinaryReconstructor} initialized reconstructor\n */\nclass BinaryReconstructor {\n    constructor(packet) {\n        this.packet = packet;\n        this.buffers = [];\n        this.reconPack = packet;\n    }\n    /**\n     * Method to be called when binary data received from connection\n     * after a BINARY_EVENT packet.\n     *\n     * @param {Buffer | ArrayBuffer} binData - the raw binary data received\n     * @return {null | Object} returns null if more binary data is expected or\n     *   a reconstructed packet object if all buffers have been received.\n     */\n    takeBinaryData(binData) {\n        this.buffers.push(binData);\n        if (this.buffers.length === this.reconPack.attachments) {\n            // done with buffer list\n            const packet = reconstructPacket(this.reconPack, this.buffers);\n            this.finishedReconstruction();\n            return packet;\n        }\n        return null;\n    }\n    /**\n     * Cleans up binary packet reconstruction variables.\n     */\n    finishedReconstruction() {\n        this.reconPack = null;\n        this.buffers = [];\n    }\n}\n", "const withNativeArrayBuffer = typeof ArrayBuffer === \"function\";\nconst isView = (obj) => {\n    return typeof ArrayBuffer.isView === \"function\"\n        ? ArrayBuffer.isView(obj)\n        : obj.buffer instanceof ArrayBuffer;\n};\nconst toString = Object.prototype.toString;\nconst withNativeBlob = typeof Blob === \"function\" ||\n    (typeof Blob !== \"undefined\" &&\n        toString.call(Blob) === \"[object BlobConstructor]\");\nconst withNativeFile = typeof File === \"function\" ||\n    (typeof File !== \"undefined\" &&\n        toString.call(File) === \"[object FileConstructor]\");\n/**\n * Returns true if obj is a Buffer, an ArrayBuffer, a Blob or a File.\n *\n * @private\n */\nexport function isBinary(obj) {\n    return ((withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj))) ||\n        (withNativeBlob && obj instanceof Blob) ||\n        (withNativeFile && obj instanceof File));\n}\nexport function hasBinary(obj, toJSON) {\n    if (!obj || typeof obj !== \"object\") {\n        return false;\n    }\n    if (Array.isArray(obj)) {\n        for (let i = 0, l = obj.length; i < l; i++) {\n            if (hasBinary(obj[i])) {\n                return true;\n            }\n        }\n        return false;\n    }\n    if (isBinary(obj)) {\n        return true;\n    }\n    if (obj.toJSON &&\n        typeof obj.toJSON === \"function\" &&\n        arguments.length === 1) {\n        return hasBinary(obj.toJSON(), true);\n    }\n    for (const key in obj) {\n        if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {\n            return true;\n        }\n    }\n    return false;\n}\n", "import { isBinary } from \"./is-binary.js\";\n/**\n * Replaces every Buffer | ArrayBuffer | Blob | File in packet with a numbered placeholder.\n *\n * @param {Object} packet - socket.io event packet\n * @return {Object} with deconstructed packet and list of buffers\n * @public\n */\nexport function deconstructPacket(packet) {\n    const buffers = [];\n    const packetData = packet.data;\n    const pack = packet;\n    pack.data = _deconstructPacket(packetData, buffers);\n    pack.attachments = buffers.length; // number of binary 'attachments'\n    return { packet: pack, buffers: buffers };\n}\nfunction _deconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (isBinary(data)) {\n        const placeholder = { _placeholder: true, num: buffers.length };\n        buffers.push(data);\n        return placeholder;\n    }\n    else if (Array.isArray(data)) {\n        const newData = new Array(data.length);\n        for (let i = 0; i < data.length; i++) {\n            newData[i] = _deconstructPacket(data[i], buffers);\n        }\n        return newData;\n    }\n    else if (typeof data === \"object\" && !(data instanceof Date)) {\n        const newData = {};\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                newData[key] = _deconstructPacket(data[key], buffers);\n            }\n        }\n        return newData;\n    }\n    return data;\n}\n/**\n * Reconstructs a binary packet from its placeholder packet and buffers\n *\n * @param {Object} packet - event packet with placeholders\n * @param {Array} buffers - binary buffers to put in placeholder positions\n * @return {Object} reconstructed packet\n * @public\n */\nexport function reconstructPacket(packet, buffers) {\n    packet.data = _reconstructPacket(packet.data, buffers);\n    delete packet.attachments; // no longer useful\n    return packet;\n}\nfunction _reconstructPacket(data, buffers) {\n    if (!data)\n        return data;\n    if (data && data._placeholder === true) {\n        const isIndexValid = typeof data.num === \"number\" &&\n            data.num >= 0 &&\n            data.num < buffers.length;\n        if (isIndexValid) {\n            return buffers[data.num]; // appropriate buffer (should be natural order anyway)\n        }\n        else {\n            throw new Error(\"illegal attachments\");\n        }\n    }\n    else if (Array.isArray(data)) {\n        for (let i = 0; i < data.length; i++) {\n            data[i] = _reconstructPacket(data[i], buffers);\n        }\n    }\n    else if (typeof data === \"object\") {\n        for (const key in data) {\n            if (Object.prototype.hasOwnProperty.call(data, key)) {\n                data[key] = _reconstructPacket(data[key], buffers);\n            }\n        }\n    }\n    return data;\n}\n", "export function on(obj, ev, fn) {\n    obj.on(ev, fn);\n    return function subDestroy() {\n        obj.off(ev, fn);\n    };\n}\n", "import { PacketType } from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\n/**\n * Internal events.\n * These events can't be emitted by the user.\n */\nconst RESERVED_EVENTS = Object.freeze({\n    connect: 1,\n    connect_error: 1,\n    disconnect: 1,\n    disconnecting: 1,\n    // EventEmitter reserved events: https://nodejs.org/api/events.html#events_event_newlistener\n    newListener: 1,\n    removeListener: 1,\n});\n/**\n * A Socket is the fundamental class for interacting with the server.\n *\n * A Socket belongs to a certain Namespace (by default /) and uses an underlying {@link Manager} to communicate.\n *\n * @example\n * const socket = io();\n *\n * socket.on(\"connect\", () => {\n *   console.log(\"connected\");\n * });\n *\n * // send an event to the server\n * socket.emit(\"foo\", \"bar\");\n *\n * socket.on(\"foobar\", () => {\n *   // an event was received from the server\n * });\n *\n * // upon disconnection\n * socket.on(\"disconnect\", (reason) => {\n *   console.log(`disconnected due to ${reason}`);\n * });\n */\nexport class Socket extends Emitter {\n    /**\n     * `Socket` constructor.\n     */\n    constructor(io, nsp, opts) {\n        super();\n        /**\n         * Whether the socket is currently connected to the server.\n         *\n         * @example\n         * const socket = io();\n         *\n         * socket.on(\"connect\", () => {\n         *   console.log(socket.connected); // true\n         * });\n         *\n         * socket.on(\"disconnect\", () => {\n         *   console.log(socket.connected); // false\n         * });\n         */\n        this.connected = false;\n        /**\n         * Whether the connection state was recovered after a temporary disconnection. In that case, any missed packets will\n         * be transmitted by the server.\n         */\n        this.recovered = false;\n        /**\n         * Buffer for packets received before the CONNECT packet\n         */\n        this.receiveBuffer = [];\n        /**\n         * Buffer for packets that will be sent once the socket is connected\n         */\n        this.sendBuffer = [];\n        /**\n         * The queue of packets to be sent with retry in case of failure.\n         *\n         * Packets are sent one by one, each waiting for the server acknowledgement, in order to guarantee the delivery order.\n         * @private\n         */\n        this._queue = [];\n        /**\n         * A sequence to generate the ID of the {@link QueuedPacket}.\n         * @private\n         */\n        this._queueSeq = 0;\n        this.ids = 0;\n        this.acks = {};\n        this.flags = {};\n        this.io = io;\n        this.nsp = nsp;\n        if (opts && opts.auth) {\n            this.auth = opts.auth;\n        }\n        this._opts = Object.assign({}, opts);\n        if (this.io._autoConnect)\n            this.open();\n    }\n    /**\n     * Whether the socket is currently disconnected\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"connect\", () => {\n     *   console.log(socket.disconnected); // false\n     * });\n     *\n     * socket.on(\"disconnect\", () => {\n     *   console.log(socket.disconnected); // true\n     * });\n     */\n    get disconnected() {\n        return !this.connected;\n    }\n    /**\n     * Subscribe to open, close and packet events\n     *\n     * @private\n     */\n    subEvents() {\n        if (this.subs)\n            return;\n        const io = this.io;\n        this.subs = [\n            on(io, \"open\", this.onopen.bind(this)),\n            on(io, \"packet\", this.onpacket.bind(this)),\n            on(io, \"error\", this.onerror.bind(this)),\n            on(io, \"close\", this.onclose.bind(this)),\n        ];\n    }\n    /**\n     * Whether the Socket will try to reconnect when its Manager connects or reconnects.\n     *\n     * @example\n     * const socket = io();\n     *\n     * console.log(socket.active); // true\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   if (reason === \"io server disconnect\") {\n     *     // the disconnection was initiated by the server, you need to manually reconnect\n     *     console.log(socket.active); // false\n     *   }\n     *   // else the socket will automatically try to reconnect\n     *   console.log(socket.active); // true\n     * });\n     */\n    get active() {\n        return !!this.subs;\n    }\n    /**\n     * \"Opens\" the socket.\n     *\n     * @example\n     * const socket = io({\n     *   autoConnect: false\n     * });\n     *\n     * socket.connect();\n     */\n    connect() {\n        if (this.connected)\n            return this;\n        this.subEvents();\n        if (!this.io[\"_reconnecting\"])\n            this.io.open(); // ensure open\n        if (\"open\" === this.io._readyState)\n            this.onopen();\n        return this;\n    }\n    /**\n     * Alias for {@link connect()}.\n     */\n    open() {\n        return this.connect();\n    }\n    /**\n     * Sends a `message` event.\n     *\n     * This method mimics the WebSocket.send() method.\n     *\n     * @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send\n     *\n     * @example\n     * socket.send(\"hello\");\n     *\n     * // this is equivalent to\n     * socket.emit(\"message\", \"hello\");\n     *\n     * @return self\n     */\n    send(...args) {\n        args.unshift(\"message\");\n        this.emit.apply(this, args);\n        return this;\n    }\n    /**\n     * Override `emit`.\n     * If the event is in `events`, it's emitted normally.\n     *\n     * @example\n     * socket.emit(\"hello\", \"world\");\n     *\n     * // all serializable datastructures are supported (no need to call JSON.stringify)\n     * socket.emit(\"hello\", 1, \"2\", { 3: [\"4\"], 5: Uint8Array.from([6]) });\n     *\n     * // with an acknowledgement from the server\n     * socket.emit(\"hello\", \"world\", (val) => {\n     *   // ...\n     * });\n     *\n     * @return self\n     */\n    emit(ev, ...args) {\n        if (RESERVED_EVENTS.hasOwnProperty(ev)) {\n            throw new Error('\"' + ev.toString() + '\" is a reserved event name');\n        }\n        args.unshift(ev);\n        if (this._opts.retries && !this.flags.fromQueue && !this.flags.volatile) {\n            this._addToQueue(args);\n            return this;\n        }\n        const packet = {\n            type: PacketType.EVENT,\n            data: args,\n        };\n        packet.options = {};\n        packet.options.compress = this.flags.compress !== false;\n        // event ack callback\n        if (\"function\" === typeof args[args.length - 1]) {\n            const id = this.ids++;\n            const ack = args.pop();\n            this._registerAckCallback(id, ack);\n            packet.id = id;\n        }\n        const isTransportWritable = this.io.engine &&\n            this.io.engine.transport &&\n            this.io.engine.transport.writable;\n        const discardPacket = this.flags.volatile && (!isTransportWritable || !this.connected);\n        if (discardPacket) {\n        }\n        else if (this.connected) {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        }\n        else {\n            this.sendBuffer.push(packet);\n        }\n        this.flags = {};\n        return this;\n    }\n    /**\n     * @private\n     */\n    _registerAckCallback(id, ack) {\n        var _a;\n        const timeout = (_a = this.flags.timeout) !== null && _a !== void 0 ? _a : this._opts.ackTimeout;\n        if (timeout === undefined) {\n            this.acks[id] = ack;\n            return;\n        }\n        // @ts-ignore\n        const timer = this.io.setTimeoutFn(() => {\n            delete this.acks[id];\n            for (let i = 0; i < this.sendBuffer.length; i++) {\n                if (this.sendBuffer[i].id === id) {\n                    this.sendBuffer.splice(i, 1);\n                }\n            }\n            ack.call(this, new Error(\"operation has timed out\"));\n        }, timeout);\n        this.acks[id] = (...args) => {\n            // @ts-ignore\n            this.io.clearTimeoutFn(timer);\n            ack.apply(this, [null, ...args]);\n        };\n    }\n    /**\n     * Emits an event and waits for an acknowledgement\n     *\n     * @example\n     * // without timeout\n     * const response = await socket.emitWithAck(\"hello\", \"world\");\n     *\n     * // with a specific timeout\n     * try {\n     *   const response = await socket.timeout(1000).emitWithAck(\"hello\", \"world\");\n     * } catch (err) {\n     *   // the server did not acknowledge the event in the given delay\n     * }\n     *\n     * @return a Promise that will be fulfilled when the server acknowledges the event\n     */\n    emitWithAck(ev, ...args) {\n        // the timeout flag is optional\n        const withErr = this.flags.timeout !== undefined || this._opts.ackTimeout !== undefined;\n        return new Promise((resolve, reject) => {\n            args.push((arg1, arg2) => {\n                if (withErr) {\n                    return arg1 ? reject(arg1) : resolve(arg2);\n                }\n                else {\n                    return resolve(arg1);\n                }\n            });\n            this.emit(ev, ...args);\n        });\n    }\n    /**\n     * Add the packet to the queue.\n     * @param args\n     * @private\n     */\n    _addToQueue(args) {\n        let ack;\n        if (typeof args[args.length - 1] === \"function\") {\n            ack = args.pop();\n        }\n        const packet = {\n            id: this._queueSeq++,\n            tryCount: 0,\n            pending: false,\n            args,\n            flags: Object.assign({ fromQueue: true }, this.flags),\n        };\n        args.push((err, ...responseArgs) => {\n            if (packet !== this._queue[0]) {\n                // the packet has already been acknowledged\n                return;\n            }\n            const hasError = err !== null;\n            if (hasError) {\n                if (packet.tryCount > this._opts.retries) {\n                    this._queue.shift();\n                    if (ack) {\n                        ack(err);\n                    }\n                }\n            }\n            else {\n                this._queue.shift();\n                if (ack) {\n                    ack(null, ...responseArgs);\n                }\n            }\n            packet.pending = false;\n            return this._drainQueue();\n        });\n        this._queue.push(packet);\n        this._drainQueue();\n    }\n    /**\n     * Send the first packet of the queue, and wait for an acknowledgement from the server.\n     * @param force - whether to resend a packet that has not been acknowledged yet\n     *\n     * @private\n     */\n    _drainQueue(force = false) {\n        if (!this.connected || this._queue.length === 0) {\n            return;\n        }\n        const packet = this._queue[0];\n        if (packet.pending && !force) {\n            return;\n        }\n        packet.pending = true;\n        packet.tryCount++;\n        this.flags = packet.flags;\n        this.emit.apply(this, packet.args);\n    }\n    /**\n     * Sends a packet.\n     *\n     * @param packet\n     * @private\n     */\n    packet(packet) {\n        packet.nsp = this.nsp;\n        this.io._packet(packet);\n    }\n    /**\n     * Called upon engine `open`.\n     *\n     * @private\n     */\n    onopen() {\n        if (typeof this.auth == \"function\") {\n            this.auth((data) => {\n                this._sendConnectPacket(data);\n            });\n        }\n        else {\n            this._sendConnectPacket(this.auth);\n        }\n    }\n    /**\n     * Sends a CONNECT packet to initiate the Socket.IO session.\n     *\n     * @param data\n     * @private\n     */\n    _sendConnectPacket(data) {\n        this.packet({\n            type: PacketType.CONNECT,\n            data: this._pid\n                ? Object.assign({ pid: this._pid, offset: this._lastOffset }, data)\n                : data,\n        });\n    }\n    /**\n     * Called upon engine or manager `error`.\n     *\n     * @param err\n     * @private\n     */\n    onerror(err) {\n        if (!this.connected) {\n            this.emitReserved(\"connect_error\", err);\n        }\n    }\n    /**\n     * Called upon engine `close`.\n     *\n     * @param reason\n     * @param description\n     * @private\n     */\n    onclose(reason, description) {\n        this.connected = false;\n        delete this.id;\n        this.emitReserved(\"disconnect\", reason, description);\n    }\n    /**\n     * Called with socket packet.\n     *\n     * @param packet\n     * @private\n     */\n    onpacket(packet) {\n        const sameNamespace = packet.nsp === this.nsp;\n        if (!sameNamespace)\n            return;\n        switch (packet.type) {\n            case PacketType.CONNECT:\n                if (packet.data && packet.data.sid) {\n                    this.onconnect(packet.data.sid, packet.data.pid);\n                }\n                else {\n                    this.emitReserved(\"connect_error\", new Error(\"It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)\"));\n                }\n                break;\n            case PacketType.EVENT:\n            case PacketType.BINARY_EVENT:\n                this.onevent(packet);\n                break;\n            case PacketType.ACK:\n            case PacketType.BINARY_ACK:\n                this.onack(packet);\n                break;\n            case PacketType.DISCONNECT:\n                this.ondisconnect();\n                break;\n            case PacketType.CONNECT_ERROR:\n                this.destroy();\n                const err = new Error(packet.data.message);\n                // @ts-ignore\n                err.data = packet.data.data;\n                this.emitReserved(\"connect_error\", err);\n                break;\n        }\n    }\n    /**\n     * Called upon a server event.\n     *\n     * @param packet\n     * @private\n     */\n    onevent(packet) {\n        const args = packet.data || [];\n        if (null != packet.id) {\n            args.push(this.ack(packet.id));\n        }\n        if (this.connected) {\n            this.emitEvent(args);\n        }\n        else {\n            this.receiveBuffer.push(Object.freeze(args));\n        }\n    }\n    emitEvent(args) {\n        if (this._anyListeners && this._anyListeners.length) {\n            const listeners = this._anyListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, args);\n            }\n        }\n        super.emit.apply(this, args);\n        if (this._pid && args.length && typeof args[args.length - 1] === \"string\") {\n            this._lastOffset = args[args.length - 1];\n        }\n    }\n    /**\n     * Produces an ack callback to emit with an event.\n     *\n     * @private\n     */\n    ack(id) {\n        const self = this;\n        let sent = false;\n        return function (...args) {\n            // prevent double callbacks\n            if (sent)\n                return;\n            sent = true;\n            self.packet({\n                type: PacketType.ACK,\n                id: id,\n                data: args,\n            });\n        };\n    }\n    /**\n     * Called upon a server acknowlegement.\n     *\n     * @param packet\n     * @private\n     */\n    onack(packet) {\n        const ack = this.acks[packet.id];\n        if (\"function\" === typeof ack) {\n            ack.apply(this, packet.data);\n            delete this.acks[packet.id];\n        }\n        else {\n        }\n    }\n    /**\n     * Called upon server connect.\n     *\n     * @private\n     */\n    onconnect(id, pid) {\n        this.id = id;\n        this.recovered = pid && this._pid === pid;\n        this._pid = pid; // defined only if connection state recovery is enabled\n        this.connected = true;\n        this.emitBuffered();\n        this.emitReserved(\"connect\");\n        this._drainQueue(true);\n    }\n    /**\n     * Emit buffered events (received and emitted).\n     *\n     * @private\n     */\n    emitBuffered() {\n        this.receiveBuffer.forEach((args) => this.emitEvent(args));\n        this.receiveBuffer = [];\n        this.sendBuffer.forEach((packet) => {\n            this.notifyOutgoingListeners(packet);\n            this.packet(packet);\n        });\n        this.sendBuffer = [];\n    }\n    /**\n     * Called upon server disconnect.\n     *\n     * @private\n     */\n    ondisconnect() {\n        this.destroy();\n        this.onclose(\"io server disconnect\");\n    }\n    /**\n     * Called upon forced client/server side disconnections,\n     * this method ensures the manager stops tracking us and\n     * that reconnections don't get triggered for this.\n     *\n     * @private\n     */\n    destroy() {\n        if (this.subs) {\n            // clean subscriptions to avoid reconnections\n            this.subs.forEach((subDestroy) => subDestroy());\n            this.subs = undefined;\n        }\n        this.io[\"_destroy\"](this);\n    }\n    /**\n     * Disconnects the socket manually. In that case, the socket will not try to reconnect.\n     *\n     * If this is the last active Socket instance of the {@link Manager}, the low-level connection will be closed.\n     *\n     * @example\n     * const socket = io();\n     *\n     * socket.on(\"disconnect\", (reason) => {\n     *   // console.log(reason); prints \"io client disconnect\"\n     * });\n     *\n     * socket.disconnect();\n     *\n     * @return self\n     */\n    disconnect() {\n        if (this.connected) {\n            this.packet({ type: PacketType.DISCONNECT });\n        }\n        // remove socket from pool\n        this.destroy();\n        if (this.connected) {\n            // fire events\n            this.onclose(\"io client disconnect\");\n        }\n        return this;\n    }\n    /**\n     * Alias for {@link disconnect()}.\n     *\n     * @return self\n     */\n    close() {\n        return this.disconnect();\n    }\n    /**\n     * Sets the compress flag.\n     *\n     * @example\n     * socket.compress(false).emit(\"hello\");\n     *\n     * @param compress - if `true`, compresses the sending data\n     * @return self\n     */\n    compress(compress) {\n        this.flags.compress = compress;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the event message will be dropped when this socket is not\n     * ready to send messages.\n     *\n     * @example\n     * socket.volatile.emit(\"hello\"); // the server may or may not receive it\n     *\n     * @returns self\n     */\n    get volatile() {\n        this.flags.volatile = true;\n        return this;\n    }\n    /**\n     * Sets a modifier for a subsequent event emission that the callback will be called with an error when the\n     * given number of milliseconds have elapsed without an acknowledgement from the server:\n     *\n     * @example\n     * socket.timeout(5000).emit(\"my-event\", (err) => {\n     *   if (err) {\n     *     // the server did not acknowledge the event in the given delay\n     *   }\n     * });\n     *\n     * @returns self\n     */\n    timeout(timeout) {\n        this.flags.timeout = timeout;\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * @example\n     * socket.onAny((event, ...args) => {\n     *   console.log(`got ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * @example\n     * socket.prependAny((event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAny(listener) {\n        this._anyListeners = this._anyListeners || [];\n        this._anyListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`got event ${event}`);\n     * }\n     *\n     * socket.onAny(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAny(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAny();\n     *\n     * @param listener\n     */\n    offAny(listener) {\n        if (!this._anyListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAny() {\n        return this._anyListeners || [];\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.onAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    onAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.push(listener);\n        return this;\n    }\n    /**\n     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the\n     * callback. The listener is added to the beginning of the listeners array.\n     *\n     * Note: acknowledgements sent to the server are not included.\n     *\n     * @example\n     * socket.prependAnyOutgoing((event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * });\n     *\n     * @param listener\n     */\n    prependAnyOutgoing(listener) {\n        this._anyOutgoingListeners = this._anyOutgoingListeners || [];\n        this._anyOutgoingListeners.unshift(listener);\n        return this;\n    }\n    /**\n     * Removes the listener that will be fired when any event is emitted.\n     *\n     * @example\n     * const catchAllListener = (event, ...args) => {\n     *   console.log(`sent event ${event}`);\n     * }\n     *\n     * socket.onAnyOutgoing(catchAllListener);\n     *\n     * // remove a specific listener\n     * socket.offAnyOutgoing(catchAllListener);\n     *\n     * // or remove all listeners\n     * socket.offAnyOutgoing();\n     *\n     * @param [listener] - the catch-all listener (optional)\n     */\n    offAnyOutgoing(listener) {\n        if (!this._anyOutgoingListeners) {\n            return this;\n        }\n        if (listener) {\n            const listeners = this._anyOutgoingListeners;\n            for (let i = 0; i < listeners.length; i++) {\n                if (listener === listeners[i]) {\n                    listeners.splice(i, 1);\n                    return this;\n                }\n            }\n        }\n        else {\n            this._anyOutgoingListeners = [];\n        }\n        return this;\n    }\n    /**\n     * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,\n     * e.g. to remove listeners.\n     */\n    listenersAnyOutgoing() {\n        return this._anyOutgoingListeners || [];\n    }\n    /**\n     * Notify the listeners for each packet sent\n     *\n     * @param packet\n     *\n     * @private\n     */\n    notifyOutgoingListeners(packet) {\n        if (this._anyOutgoingListeners && this._anyOutgoingListeners.length) {\n            const listeners = this._anyOutgoingListeners.slice();\n            for (const listener of listeners) {\n                listener.apply(this, packet.data);\n            }\n        }\n    }\n}\n", "/**\n * Initialize backoff timer with `opts`.\n *\n * - `min` initial timeout in milliseconds [100]\n * - `max` max timeout [10000]\n * - `jitter` [0]\n * - `factor` [2]\n *\n * @param {Object} opts\n * @api public\n */\nexport function Backoff(opts) {\n    opts = opts || {};\n    this.ms = opts.min || 100;\n    this.max = opts.max || 10000;\n    this.factor = opts.factor || 2;\n    this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;\n    this.attempts = 0;\n}\n/**\n * Return the backoff duration.\n *\n * @return {Number}\n * @api public\n */\nBackoff.prototype.duration = function () {\n    var ms = this.ms * Math.pow(this.factor, this.attempts++);\n    if (this.jitter) {\n        var rand = Math.random();\n        var deviation = Math.floor(rand * this.jitter * ms);\n        ms = (Math.floor(rand * 10) & 1) == 0 ? ms - deviation : ms + deviation;\n    }\n    return Math.min(ms, this.max) | 0;\n};\n/**\n * Reset the number of attempts.\n *\n * @api public\n */\nBackoff.prototype.reset = function () {\n    this.attempts = 0;\n};\n/**\n * Set the minimum duration\n *\n * @api public\n */\nBackoff.prototype.setMin = function (min) {\n    this.ms = min;\n};\n/**\n * Set the maximum duration\n *\n * @api public\n */\nBackoff.prototype.setMax = function (max) {\n    this.max = max;\n};\n/**\n * Set the jitter\n *\n * @api public\n */\nBackoff.prototype.setJitter = function (jitter) {\n    this.jitter = jitter;\n};\n", "import { Socket as Engine, installTimerFunctions, nextTick, } from \"engine.io-client\";\nimport { Socket } from \"./socket.js\";\nimport * as parser from \"socket.io-parser\";\nimport { on } from \"./on.js\";\nimport { Backoff } from \"./contrib/backo2.js\";\nimport { Emitter, } from \"@socket.io/component-emitter\";\nexport class Manager extends Emitter {\n    constructor(uri, opts) {\n        var _a;\n        super();\n        this.nsps = {};\n        this.subs = [];\n        if (uri && \"object\" === typeof uri) {\n            opts = uri;\n            uri = undefined;\n        }\n        opts = opts || {};\n        opts.path = opts.path || \"/socket.io\";\n        this.opts = opts;\n        installTimerFunctions(this, opts);\n        this.reconnection(opts.reconnection !== false);\n        this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);\n        this.reconnectionDelay(opts.reconnectionDelay || 1000);\n        this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);\n        this.randomizationFactor((_a = opts.randomizationFactor) !== null && _a !== void 0 ? _a : 0.5);\n        this.backoff = new Backoff({\n            min: this.reconnectionDelay(),\n            max: this.reconnectionDelayMax(),\n            jitter: this.randomizationFactor(),\n        });\n        this.timeout(null == opts.timeout ? 20000 : opts.timeout);\n        this._readyState = \"closed\";\n        this.uri = uri;\n        const _parser = opts.parser || parser;\n        this.encoder = new _parser.Encoder();\n        this.decoder = new _parser.Decoder();\n        this._autoConnect = opts.autoConnect !== false;\n        if (this._autoConnect)\n            this.open();\n    }\n    reconnection(v) {\n        if (!arguments.length)\n            return this._reconnection;\n        this._reconnection = !!v;\n        return this;\n    }\n    reconnectionAttempts(v) {\n        if (v === undefined)\n            return this._reconnectionAttempts;\n        this._reconnectionAttempts = v;\n        return this;\n    }\n    reconnectionDelay(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelay;\n        this._reconnectionDelay = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMin(v);\n        return this;\n    }\n    randomizationFactor(v) {\n        var _a;\n        if (v === undefined)\n            return this._randomizationFactor;\n        this._randomizationFactor = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setJitter(v);\n        return this;\n    }\n    reconnectionDelayMax(v) {\n        var _a;\n        if (v === undefined)\n            return this._reconnectionDelayMax;\n        this._reconnectionDelayMax = v;\n        (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMax(v);\n        return this;\n    }\n    timeout(v) {\n        if (!arguments.length)\n            return this._timeout;\n        this._timeout = v;\n        return this;\n    }\n    /**\n     * Starts trying to reconnect if reconnection is enabled and we have not\n     * started reconnecting yet\n     *\n     * @private\n     */\n    maybeReconnectOnOpen() {\n        // Only try to reconnect if it's the first time we're connecting\n        if (!this._reconnecting &&\n            this._reconnection &&\n            this.backoff.attempts === 0) {\n            // keeps reconnection from firing twice for the same reconnection loop\n            this.reconnect();\n        }\n    }\n    /**\n     * Sets the current transport `socket`.\n     *\n     * @param {Function} fn - optional, callback\n     * @return self\n     * @public\n     */\n    open(fn) {\n        if (~this._readyState.indexOf(\"open\"))\n            return this;\n        this.engine = new Engine(this.uri, this.opts);\n        const socket = this.engine;\n        const self = this;\n        this._readyState = \"opening\";\n        this.skipReconnect = false;\n        // emit `open`\n        const openSubDestroy = on(socket, \"open\", function () {\n            self.onopen();\n            fn && fn();\n        });\n        const onError = (err) => {\n            this.cleanup();\n            this._readyState = \"closed\";\n            this.emitReserved(\"error\", err);\n            if (fn) {\n                fn(err);\n            }\n            else {\n                // Only do this if there is no fn to handle the error\n                this.maybeReconnectOnOpen();\n            }\n        };\n        // emit `error`\n        const errorSub = on(socket, \"error\", onError);\n        if (false !== this._timeout) {\n            const timeout = this._timeout;\n            // set timer\n            const timer = this.setTimeoutFn(() => {\n                openSubDestroy();\n                onError(new Error(\"timeout\"));\n                socket.close();\n            }, timeout);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n        this.subs.push(openSubDestroy);\n        this.subs.push(errorSub);\n        return this;\n    }\n    /**\n     * Alias for open()\n     *\n     * @return self\n     * @public\n     */\n    connect(fn) {\n        return this.open(fn);\n    }\n    /**\n     * Called upon transport open.\n     *\n     * @private\n     */\n    onopen() {\n        // clear old subs\n        this.cleanup();\n        // mark as open\n        this._readyState = \"open\";\n        this.emitReserved(\"open\");\n        // add new subs\n        const socket = this.engine;\n        this.subs.push(on(socket, \"ping\", this.onping.bind(this)), on(socket, \"data\", this.ondata.bind(this)), on(socket, \"error\", this.onerror.bind(this)), on(socket, \"close\", this.onclose.bind(this)), on(this.decoder, \"decoded\", this.ondecoded.bind(this)));\n    }\n    /**\n     * Called upon a ping.\n     *\n     * @private\n     */\n    onping() {\n        this.emitReserved(\"ping\");\n    }\n    /**\n     * Called with data.\n     *\n     * @private\n     */\n    ondata(data) {\n        try {\n            this.decoder.add(data);\n        }\n        catch (e) {\n            this.onclose(\"parse error\", e);\n        }\n    }\n    /**\n     * Called when parser fully decodes a packet.\n     *\n     * @private\n     */\n    ondecoded(packet) {\n        // the nextTick call prevents an exception in a user-provided event listener from triggering a disconnection due to a \"parse error\"\n        nextTick(() => {\n            this.emitReserved(\"packet\", packet);\n        }, this.setTimeoutFn);\n    }\n    /**\n     * Called upon socket error.\n     *\n     * @private\n     */\n    onerror(err) {\n        this.emitReserved(\"error\", err);\n    }\n    /**\n     * Creates a new socket for the given `nsp`.\n     *\n     * @return {Socket}\n     * @public\n     */\n    socket(nsp, opts) {\n        let socket = this.nsps[nsp];\n        if (!socket) {\n            socket = new Socket(this, nsp, opts);\n            this.nsps[nsp] = socket;\n        }\n        else if (this._autoConnect && !socket.active) {\n            socket.connect();\n        }\n        return socket;\n    }\n    /**\n     * Called upon a socket close.\n     *\n     * @param socket\n     * @private\n     */\n    _destroy(socket) {\n        const nsps = Object.keys(this.nsps);\n        for (const nsp of nsps) {\n            const socket = this.nsps[nsp];\n            if (socket.active) {\n                return;\n            }\n        }\n        this._close();\n    }\n    /**\n     * Writes a packet.\n     *\n     * @param packet\n     * @private\n     */\n    _packet(packet) {\n        const encodedPackets = this.encoder.encode(packet);\n        for (let i = 0; i < encodedPackets.length; i++) {\n            this.engine.write(encodedPackets[i], packet.options);\n        }\n    }\n    /**\n     * Clean up transport subscriptions and packet buffer.\n     *\n     * @private\n     */\n    cleanup() {\n        this.subs.forEach((subDestroy) => subDestroy());\n        this.subs.length = 0;\n        this.decoder.destroy();\n    }\n    /**\n     * Close the current socket.\n     *\n     * @private\n     */\n    _close() {\n        this.skipReconnect = true;\n        this._reconnecting = false;\n        this.onclose(\"forced close\");\n        if (this.engine)\n            this.engine.close();\n    }\n    /**\n     * Alias for close()\n     *\n     * @private\n     */\n    disconnect() {\n        return this._close();\n    }\n    /**\n     * Called upon engine close.\n     *\n     * @private\n     */\n    onclose(reason, description) {\n        this.cleanup();\n        this.backoff.reset();\n        this._readyState = \"closed\";\n        this.emitReserved(\"close\", reason, description);\n        if (this._reconnection && !this.skipReconnect) {\n            this.reconnect();\n        }\n    }\n    /**\n     * Attempt a reconnection.\n     *\n     * @private\n     */\n    reconnect() {\n        if (this._reconnecting || this.skipReconnect)\n            return this;\n        const self = this;\n        if (this.backoff.attempts >= this._reconnectionAttempts) {\n            this.backoff.reset();\n            this.emitReserved(\"reconnect_failed\");\n            this._reconnecting = false;\n        }\n        else {\n            const delay = this.backoff.duration();\n            this._reconnecting = true;\n            const timer = this.setTimeoutFn(() => {\n                if (self.skipReconnect)\n                    return;\n                this.emitReserved(\"reconnect_attempt\", self.backoff.attempts);\n                // check again for the case socket closed in above events\n                if (self.skipReconnect)\n                    return;\n                self.open((err) => {\n                    if (err) {\n                        self._reconnecting = false;\n                        self.reconnect();\n                        this.emitReserved(\"reconnect_error\", err);\n                    }\n                    else {\n                        self.onreconnect();\n                    }\n                });\n            }, delay);\n            if (this.opts.autoUnref) {\n                timer.unref();\n            }\n            this.subs.push(() => {\n                this.clearTimeoutFn(timer);\n            });\n        }\n    }\n    /**\n     * Called upon successful reconnect.\n     *\n     * @private\n     */\n    onreconnect() {\n        const attempt = this.backoff.attempts;\n        this._reconnecting = false;\n        this.backoff.reset();\n        this.emitReserved(\"reconnect\", attempt);\n    }\n}\n", "import { url } from \"./url.js\";\nimport { Manager } from \"./manager.js\";\nimport { Socket } from \"./socket.js\";\n/**\n * Managers cache.\n */\nconst cache = {};\nfunction lookup(uri, opts) {\n    if (typeof uri === \"object\") {\n        opts = uri;\n        uri = undefined;\n    }\n    opts = opts || {};\n    const parsed = url(uri, opts.path || \"/socket.io\");\n    const source = parsed.source;\n    const id = parsed.id;\n    const path = parsed.path;\n    const sameNamespace = cache[id] && path in cache[id][\"nsps\"];\n    const newConnection = opts.forceNew ||\n        opts[\"force new connection\"] ||\n        false === opts.multiplex ||\n        sameNamespace;\n    let io;\n    if (newConnection) {\n        io = new Manager(source, opts);\n    }\n    else {\n        if (!cache[id]) {\n            cache[id] = new Manager(source, opts);\n        }\n        io = cache[id];\n    }\n    if (parsed.query && !opts.query) {\n        opts.query = parsed.queryKey;\n    }\n    return io.socket(parsed.path, opts);\n}\n// so that \"lookup\" can be used both as a function (e.g. `io(...)`) and as a\n// namespace (e.g. `io.connect(...)`), for backward compatibility\nObject.assign(lookup, {\n    Manager,\n    Socket,\n    io: lookup,\n    connect: lookup,\n});\n/**\n * Protocol version.\n *\n * @public\n */\nexport { protocol } from \"socket.io-parser\";\n/**\n * Expose constructors for standalone build.\n *\n * @public\n */\nexport { Manager, Socket, lookup as io, lookup as connect, lookup as default, };\n", "/** A zero dependency web component that will display a managed uibuilder variable.\n *\n * Version: 1.0.1 2023-12-27\n */\n/*\n  Copyright (c) 2023-2024 Julian Knight (Totally Information)\n\n  Licensed under the Apache License, Version 2.0 (the \"License\");\n  you may not use this file except in compliance with the License.\n  You may obtain a copy of the License at\n\n  http://www.apache.org/licenses/LICENSE-2.0\n\n  Unless required by applicable law or agreed to in writing, software\n  distributed under the License is distributed on an \"AS IS\" BASIS,\n  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n  See the License for the specific language governing permissions and\n  limitations under the License.\n*/\n\n// const template = document.createElement('template')\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`<link type=\"text/css\" rel=\"stylesheet\" href=\"\"../uibuilder/uib-brand.min.css\"\" media=\"all\"><span></span>`\n// template.innerHTML = /** @type {HTMLTemplateElement} */ /*html*/`\n// {/* <style>@import url(\"../uibuilder/uib-brand.min.css\");</style><span></span> */}\n// `\n\nexport default class UibVar extends HTMLElement {\n    //#region --- Class Properties ---\n    /** @type {string} Name of the uibuilder mangaged variable to use */\n    variable\n    /** Current value of the watched variable */\n    value\n    /** Whether to output if the variable is undefined */\n    undef = false\n    /** Whether to send update value to Node-RED on change */\n    report = false\n    /** What is the value type */\n    type = 'plain'\n    /** what are the available types? */\n    types = ['plain', 'html', 'markdown', 'object']\n    /** Holds uibuilder.onTopic listeners */\n    topicMonitors = {}\n    /** Is UIBUILDER loaded? */\n    uib = !!window['uibuilder']\n\n    /** Mini jQuery-like shadow dom selector (see constructor) */\n    $\n\n    /** Holds a count of how many instances of this component are on the page */\n    static _iCount = 0\n    /** @type {Array<string>} List of all of the html attribs (props) listened to */\n    static props = ['filter', 'id', 'name', 'report', 'topic', 'type', 'undefined', 'variable',]\n    //#endregion --- Class Properties ---\n\n    constructor() {\n        super()\n        this.shadow = this.attachShadow({ mode: 'open', delegatesFocus: true })\n        //  .append(template.content.cloneNode(true))\n\n        this.$ = this.shadowRoot.querySelector.bind(this.shadowRoot)\n\n        // Apply external styles to the shadow dom - assumes you use index.css in same url location as main url\n        this.css = document.createElement('link')\n        this.css.setAttribute('type', 'text/css')\n        this.css.setAttribute('rel', 'stylesheet')\n        this.css.setAttribute('href', './index.css')\n\n        this.dispatchEvent(new Event('uib-var:construction', { bubbles: true, composed: true }))\n    }\n\n    // Makes HTML attribute change watched\n    static get observedAttributes() {\n        return UibVar.props\n    }\n\n    /** Handle watched attributes\n     * NOTE: On initial startup, this is called for each watched attrib set in HTML - BEFORE connectedCallback is called.\n     * Attribute values can only ever be strings\n     * @param {string} attrib The name of the attribute that is changing\n     * @param {string} newVal The new value of the attribute\n     * @param {string} oldVal The old value of the attribute\n     */\n    attributeChangedCallback(attrib, oldVal, newVal) {\n        if ( oldVal === newVal ) return\n\n        switch (attrib) {\n            case 'variable': {\n                // NB Doesn't check if var exists because it might not be set yet\n                if (newVal === '') throw new Error('[uib-var] Attribute \"variable\" MUST be set to a UIBUILDER managed variable name')\n                this.variable = newVal\n                this.doWatch()\n                break\n            }\n            case 'undefined': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.undef = true\n                else this.undef = false\n                break\n            }\n            case 'report': {\n                if (newVal === '' || ['on', 'true', 'report'].includes(newVal.toLowerCase())) this.report = true\n                else this.report = false\n                break\n            }\n            case 'type': {\n                if (newVal === '' || !this.types.includes(newVal.toLowerCase())) this.type = 'plain'\n                else this.type = newVal\n                break\n            }\n            case 'topic': {\n                // console.log(1, attrib, newVal)\n                // Handle empty topic\n                if (!newVal) break\n                // Ignore if not using uibuilder\n                if (!this.uib) break\n                // If variable attrib set, give warning and ignore\n                if (this.variable) {\n                    console.warn('\u26A0\uFE0F [uib-var] Cannot process both variable and topic attributes, use only 1. Using variable')\n                    break\n                }\n\n                this.topic = newVal\n\n                // Cancel old listener just in case\n                if (this.topicMonitors[newVal]) uibuilder.cancelTopic(newVal, this.topicMonitors[newVal])\n                // Set up a uibuilder listener for this topic - ASSUMES msg.payload contains the VALUE to show\n                this.topicMonitors[newVal] = uibuilder.onTopic(newVal, (msg) => {\n                    // console.log('topicMonitor ', newVal, msg)\n                    this.value = msg.payload\n                    this.varDom()\n                    if (this.report === true) window['uibuilder'].send({ topic: this.variable, payload: this.value || undefined })\n                })\n                this.varDom()\n\n                break\n            }\n            case 'filter': {\n                this.filter = undefined\n                this.filterArgs = []\n\n                // Handle empty filter\n                if (!newVal) break\n\n                this.filter = newVal\n\n                // Filter the input - at least limit the length of the attr\n                newVal = newVal.slice(0, 127)\n                // Remove spaces and then separate fn name from potential extra arguments\n                const f = newVal.replace(/\\s/g, '').match(/([a-zA-Z_$][a-zA-Z_$0-9.-]+)(\\((.*)\\))?/)\n                if (!f) {\n                    console.warn(`\u26A0\uFE0F [uib-var] Filter function \"${newVal}\" invalid. Cannot process.`)\n                    break\n                }\n                // Fn name\n                this.filter = f[1]\n                // Fn arguments\n                if (f[3]) { // undefined if no args found\n                    // TODO Do we really want to try this?\n                    try {\n                        this.filterArgs = JSON.parse(f[3])\n                    } catch (e) {}\n\n                    this.filterArgs = f[3].split(',').map((x) => {\n                        // No objects/arrays allowed - if they have a , they are split\n                        x = x.trim()\n                        // @ts-ignore NB: Do NOT use Number.isNaN here, it is too narrow minded\n                        if (isNaN(x)) {\n                            // String inside string ends up double quoted so remove those\n                            let y = x.replace(/^[\"'`]/, '').replace(/[\"'`]$/, '')\n                            // Attempt very limited parse in case it is valid object/array\n                            try {\n                                y = new Function(`return ${y}`)() // eslint-disable-line no-new-func\n                            } catch (e) {}\n                            return y\n                        }\n                        return Number(x)\n                    })\n                }\n\n                // Apply the filter directly if neither variable nor topic attribs set\n                if (!this.variable && !this.topic) this.varDom(false)\n                break\n            }\n\n            default: {\n                this[attrib] = newVal\n                break\n            }\n        }\n    } // --- end of attributeChangedCallback --- //\n\n    // Runs when an instance is added to the DOM\n    connectedCallback() {\n        // Make sure instance has an ID. Create an id from name or calculation if needed\n        if (!this.id) {\n            if (!this.name) this.name = this.getAttribute('name')\n            if (this.name) this.id = this.name.toLowerCase().replace(/\\s/g, '_')\n            else this.id = `uib-var-${++UibVar._iCount}`\n        }\n    }  // ---- end of connectedCallback ---- //\n\n    // Runs when an instance is removed from the DOM\n    disconnectedCallback() {\n        // Ignore if not using uibuilder\n        if (this.uib) {\n            Object.keys(this.topicMonitors).forEach( topic => {\n                uibuilder.cancelTopic(topic, this.topicMonitors[topic])\n            })\n        }\n    } // ---- end of disconnectedCallback ---- //\n\n    /** Process changes to the required uibuilder variable */\n    doWatch() {\n        if (!this.variable) throw new Error('No variable name provided')\n        // if (!this.uib) throw new Error('UIBUILDER client library not loaded - this component must be loaded AFTER the UIBUILDER library')\n\n        this.value = window['uibuilder'].get(this.variable)\n        this.varDom()\n\n        // Watch for changes in the variable\n        window['uibuilder'].onChange(this.variable, (val) => {\n            this.value = val\n            this.varDom()\n            if (this.report === true) window['uibuilder'].send({ topic: this.variable, payload: this.value || undefined })\n        })\n    }\n\n    /** Convert this.value to DOM output (applies output filter if needed)\n     * @param {boolean} chkVal If true (default), check for undefined value. False used to run filter even with no value set.\n     */\n    varDom(chkVal = true) {\n        // If user doesn't want to show undefined vars, allow the component slot to show instead\n        if (chkVal === true && !this.value && this.undef !== true) {\n            this.shadow.innerHTML = '<slot></slot>'\n            return\n        }\n\n        // Apply the filter to the value before display\n        const val = chkVal ? this.doFilter(this.value) : this.doFilter()\n\n        // console.log('\uD83E\uDDEA varDOM: ', val, typeof val, this.type)\n\n        let out = val\n\n        switch (this.type) {\n            case 'markdown': {\n                if (this.uib) out = window['uibuilder'].convertMarkdown(val)\n                break\n            }\n\n            case 'object': {\n                // console.log(window['uibuilder'].syntaxHighlight(val))\n                out = `<pre class=\"syntax-highlight\">${this.uib ? window['uibuilder'].syntaxHighlight(val) : val}</pre>`\n                break\n            }\n\n            case 'plain':\n            case 'html':\n            default: {\n                const t = typeof val\n                if (Array.isArray(val) || t === '[object Object]' || t === 'object') {\n                    try {\n                        out = JSON.stringify(val)\n                    } catch (e) {}\n                }\n                break\n            }\n        }\n        if (this.uib) this.shadow.innerHTML = window['uibuilder'].sanitiseHTML(out)\n        else this.shadow.innerHTML = out\n\n        this.shadow.appendChild(this.css)\n    }\n\n    /** Apply value filter if specified\n     * @param {*} value The value to change\n     * @returns {*} The amended value that will be displayed\n     */\n    doFilter(value) {\n        if (this.filter) {\n            // Cater for dotted notation functions (e.g. uibuilder.get)\n            const splitFilter = this.filter.split('.')\n            let globalFn = globalThis[splitFilter[0]]\n            if (globalFn && splitFilter.length > 1) {\n                const parts = [splitFilter.pop()]\n                parts.forEach( part => {\n                    globalFn = globalFn[part]\n                } )\n            }\n            if (!globalFn && this.uib === true) globalFn = globalThis['uibuilder'][splitFilter[0]]\n            if (globalFn && typeof globalFn !== 'function' ) globalFn = undefined\n            if (globalFn) {\n                const argList = value === undefined ? [...this.filterArgs] : [value, ...this.filterArgs]\n                value = Reflect.apply(globalFn, value ?? globalFn, argList)\n            } else {\n                console.warn(`\u26A0\uFE0F [uib-var] Filter function \"${this.filter}\" ${typeof globalFn === 'object' ? 'is an object not a function' : 'not found'}`)\n            }\n        }\n\n        return value\n    }\n}\n\n// Add the class as a new Custom Element to the window object\n// customElements.define('uib-var', UibVar)\n"],
+  "mappings": 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"expectedLength", "isBinary", "headerArray", "n", "ERROR_PACKET", "data", "protocol", "Emitter", "obj", "mixin", "key", "event", "fn", "on", "callbacks", "cb", "i", "args", "len", "globalThisShim", "pick", "obj", "attr", "acc", "k", "NATIVE_SET_TIMEOUT", "globalThisShim", "NATIVE_CLEAR_TIMEOUT", "installTimerFunctions", "opts", "BASE64_OVERHEAD", "byteLength", "utf8Length", "str", "c", "length", "l", "encode", "obj", "str", "i", "decode", "qs", "qry", "pairs", "l", "pair", "TransportError", "reason", "description", "context", "Transport", "Emitter", "opts", "installTimerFunctions", "packets", "data", "packet", "decodePacket", "details", "onPause", "schema", "query", "hostname", "encodedQuery", "encode", "alphabet", "length", "map", "seed", "i", "prev", "encode", "num", "encoded", "yeast", "now", "encode", "prev", "seed", "i", "length", "map", "alphabet", "value", "hasCORS", "XHR", "opts", "xdomain", "hasCORS", "globalThisShim", "empty", "hasXHR2", "XHR", "Polling", "Transport", "opts", "isSSL", "port", "forceBase64", "onPause", "pause", "total", "data", "callback", "packet", "decodePayload", "close", "packets", "encodePayload", "schema", "query", "yeast", "Request", "fn", "req", "xhrStatus", "context", "_Request", "Emitter", "uri", "installTimerFunctions", "_a", "pick", "xhr", "i", "e", "err", "fromError", "unloadHandler", "terminationEvent", "globalThisShim", "nextTick", "cb", "setTimeoutFn", "WebSocket", "globalThisShim", "usingBrowserWebSocket", "defaultBinaryType", "isReactNative", "WS", "Transport", "opts", "uri", "protocols", "pick", "usingBrowserWebSocket", "WebSocket", "err", "closeEvent", "ev", "packets", "i", "packet", "lastPacket", "encodePacket", "data", "nextTick", "schema", "query", "yeast", "WT", "Transport", "err", "stream", "decoderStream", "createPacketDecoderStream", "reader", "encoderStream", "createPacketEncoderStream", "read", "done", "value", "packet", "packets", "i", "lastPacket", "nextTick", "_a", "transports", "WS", "WT", "Polling", "re", "parts", "parse", "str", "src", "b", "e", "m", "uri", "i", "pathNames", "queryKey", "obj", "path", "regx", "names", "query", "data", "$0", "$1", "$2", "Socket", "_Socket", "Emitter", "uri", "opts", "defaultBinaryType", "parse", "installTimerFunctions", "decode", "name", "query", "protocol", "transports", "transport", "reason", "failed", "onTransportOpen", "msg", "cleanup", "err", "freezeTransport", "onerror", "error", "onTransportClose", "onclose", "onupgrade", "to", "i", "l", "packet", "data", "packets", "payloadSize", "byteLength", "options", "fn", "type", "close", "cleanupAndClose", "waitForUpgrade", "description", "upgrades", "filteredUpgrades", "j", "protocol", "Socket", "url", "uri", "path", "loc", "obj", "parse", "host", "esm_exports", "__export", "Decoder", "Encoder", "PacketType", "protocol", "withNativeArrayBuffer", "isView", "obj", "toString", "withNativeBlob", "withNativeFile", "isBinary", "hasBinary", "toJSON", "i", "l", "key", "deconstructPacket", "packet", "buffers", "packetData", "pack", "_deconstructPacket", "data", "isBinary", "placeholder", "newData", "key", "reconstructPacket", "_reconstructPacket", "i", "RESERVED_EVENTS", "protocol", "PacketType", "Encoder", "replacer", "obj", "hasBinary", "str", "deconstruction", "deconstructPacket", "pack", "buffers", "isObject", "value", "Decoder", "_Decoder", "Emitter", "reviver", "packet", "isBinaryEvent", "BinaryReconstructor", "isBinary", "i", "p", "start", "buf", "next", "c", "payload", "type", "binData", "reconstructPacket", "on", "obj", "ev", "fn", "RESERVED_EVENTS", "Socket", "Emitter", "io", "nsp", "opts", "on", "args", "ev", "packet", "PacketType", "id", "ack", "isTransportWritable", "_a", "timeout", "timer", "i", "withErr", "resolve", "reject", "arg1", "arg2", "err", "responseArgs", "force", "data", "reason", "description", "listeners", "listener", "self", "sent", "pid", "subDestroy", "compress", "Backoff", "opts", "ms", "rand", "deviation", "min", "max", "jitter", "Manager", "Emitter", "uri", "opts", "_a", "installTimerFunctions", "Backoff", "_parser", "esm_exports", "v", "fn", "Socket", "socket", "self", "openSubDestroy", "on", "onError", "err", "errorSub", "timeout", "timer", "data", "e", "packet", "nextTick", "nsp", "nsps", "encodedPackets", "subDestroy", "reason", "description", "delay", "attempt", "cache", "lookup", "uri", "opts", "parsed", "url", "source", "id", "path", "sameNamespace", "newConnection", "io", "Manager", "Socket", "_UibVar", "__publicField", "attrib", "oldVal", "newVal", "msg", "f", "x", "y", "topic", "val", "chkVal", "out", "t", "value", "splitFilter", "globalFn", "part", "argList", "UibVar", "version", "isMinified", "param", "logLevel", "LOG_STYLES", "log", "args", "level", "strLevel", "head", "makeMeAnObject", "thing", "property", "out", "urlJoin", "e", "syntaxHighlight", "json", "match", "cls", "_ui", "Ui", "_a", "_pingInterval", "_propChangeCallbacks", "_msgRecvdByTopicCallbacks", "_timerid", "_MsgHandler", "_isShowMsg", "_isShowStatus", "_sendUrlHash", "_extCommands", "_managedVars", "_showStatus", "_uiObservers", "Uib", "__publicField", "__privateAdd", "cb", "c", "splitC", "event", "__privateGet", "fullPath", "autoloadVars", "id", "prop", "val", "store", "autoload", "value", "autoVars", "title", "details", "callback", "nextCbRef", "propChangeCallback", "cbRef", "topic", "msgRecvdEvtCallback", "msg", "receivedMsg", "serverTimestamp", "offset", "varToCopy", "data", "cssSelector", "el", "exists", "decimalPlaces", "intl", "opts", "url", "originator", "ms", "oReq", "headers", "elapsedTime", "__privateSet", "deflt", "ret", "toggle", "mdText", "uiOptions", "textFn", "component", "html", "type", "ui", "propName", "showHide", "parent", "slot", "config", "res", "err", "root", "entry", "startStop", "send", "showLog", "targetNode", "that", "mutationList", "mu", "oMu", "an", "i", "htmlCache", "receivedCtrlMsg", "obj", "r", "msgToSend", "channel", "numMsgs", "cmd", "quiet", "response", "info", "newUrl", "txtToSend", "domevent", "target", "props", "key", "ignoreAttribs", "attribs", "name", "form", "frmVals", "frmEl", "v", "classes", "payload", "nprops", "room", "ioNamespace", "u", "t", "delay", "factor", "depth", "reason", "lookup", "options", "eMsg", "uibuilder", "uibuilder_module_default", "uibuilder", "UibVar"]
 }
diff --git a/src/front-end-module/uibuilder.module.js b/src/front-end-module/uibuilder.module.js
index 6bf8abc9..58d29cb4 100644
--- a/src/front-end-module/uibuilder.module.js
+++ b/src/front-end-module/uibuilder.module.js
@@ -779,6 +779,105 @@ export const Uib = class Uib {
         }
     }
 
+    /** Set up an event listener to watch for hash changes
+     * and set the watchable urlHash variable
+     */
+    _watchHashChanges() {
+        this.set('urlHash', location.hash)
+        window.addEventListener('hashchange', (event) => {
+            this.set('urlHash', location.hash)
+            if (this.#sendUrlHash === true) {
+                this.send({ topic: 'hashChange', payload: location.hash, newHash: this.keepHashFromUrl(event.newURL), oldHash: this.keepHashFromUrl(event.oldURL) })
+            }
+        })
+    }
+
+    /** Copies a uibuilder variable to the browser clipboard
+     * @param {string} varToCopy The name of the uibuilder variable to copy to the clipboard
+     */
+    copyToClipboard(varToCopy) {
+        let data = ''
+        try {
+            data = JSON.stringify(this.get(varToCopy))
+        } catch (e) {
+            log('error', 'copyToClipboard', `Could not copy "${varToCopy}" to clipboard.`, e.message)()
+        }
+        navigator.clipboard.writeText(data)
+    } // --- End of copyToClipboard --- //
+
+    /** Does the chosen CSS Selector currently exist?
+     * Automatically sends a msg back to Node-RED unless turned off.
+     * @param {string} cssSelector Required. CSS Selector to examine for visibility
+     * @param {boolean} [msg] Optional, default=true. If true also sends a message back to Node-RED
+     * @returns {boolean} True if the element exists
+     */
+    elementExists(cssSelector, msg = true) {
+        const el = document.querySelector(cssSelector)
+
+        let exists = false
+        if (el !== null) exists = true
+
+        if (msg === true) {
+            this.send({
+                payload: exists,
+                info: `Element "${cssSelector}" ${exists ? 'exists' : 'does not exist'}`
+            })
+        }
+
+        return exists
+    } // --- End of elementExists --- //
+
+    /** Format a number using the INTL standard library - compatible with uib-var filter function
+     * @param {number} value Number to format
+     * @param {number} decimalPlaces Number of decimal places to include. Default=no default
+     * @param {string} intl standard locale spec, e.g. "ja-JP" or "en-GB". Default=navigator.language
+     * @param {object} opts INTL library options object. Optional
+     * @returns {string} formatted number
+     * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/toLocaleString
+     */
+    formatNumber(value, decimalPlaces, intl, opts) {
+        if (isNaN(value)) {
+            log('error', 'formatNumber', `Value must be a number. Value type: "${typeof value}"`)()
+            return 'NaN'
+        }
+        if (!opts) opts = {}
+        if (!intl) intl = navigator.language ? navigator.language : 'en-GB'
+        if (decimalPlaces) {
+            opts.minimumFractionDigits = decimalPlaces
+            opts.maximumFractionDigits = decimalPlaces
+        }
+        let out
+        try {
+            out = Number(value).toLocaleString(intl, opts)
+        } catch (e) {
+            log('error', 'formatNumber', `${e.message}. value=${value}, dp=${decimalPlaces}, intl="${intl}", opts=${JSON.stringify(opts)}`)()
+            return 'NaN'
+        }
+        return out
+    }
+
+    /** Only keep the URL Hash & ignoring query params
+     * @param {string} url URL to extract the hash from
+     * @returns {string} Just the route id
+     */
+    keepHashFromUrl(url) {
+        if (!url) return ''
+        return '#' + url.replace(/^.*#(.*)/, '$1').replace(/\?.*$/, '')
+    }
+
+    log() {
+        log(...arguments)()
+    }
+
+    /** Navigate to a new page or a new route (hash)
+     * @param {string} url URL to navigate to. Can be absolute or relative (to current page) or just a hash for a route change
+     * @returns {Location} The new window.location string
+     */
+    navigate(url) {
+        if (url) window.location.href = url
+        return window.location
+    }
+
     /** Set the default originator. Set to '' to ignore. Used with uib-sender.
      * @param {string} [originator] A Node-RED node ID to return the message to
      */
@@ -825,10 +924,6 @@ export const Uib = class Uib {
         }
     } // ---- End of ping ---- //
 
-    log() {
-        log(...arguments)()
-    }
-
     /** Convert JSON to Syntax Highlighted HTML
      * @param {object} json A JSON/JavaScript Object
      * @returns {html} Object reformatted as highlighted HTML
@@ -837,77 +932,6 @@ export const Uib = class Uib {
         return syntaxHighlight(json)
     } // --- End of syntaxHighlight --- //
 
-    /** Copies a uibuilder variable to the browser clipboard
-     * @param {string} varToCopy The name of the uibuilder variable to copy to the clipboard
-     */
-    copyToClipboard(varToCopy) {
-        let data = ''
-        try {
-            data = JSON.stringify(this.get(varToCopy))
-        } catch (e) {
-            log('error', 'copyToClipboard', `Could not copy "${varToCopy}" to clipboard.`, e.message)()
-        }
-        navigator.clipboard.writeText(data)
-    } // --- End of copyToClipboard --- //
-
-    /** DEPRECATED FOR NOW - wasn't working properly.
-     * Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.
-     * Requires IntersectionObserver (available to all mainstream browsers from early 2019)
-     * Automatically sends a msg back to Node-RED.
-     * Requires the element to already exist.
-     * @returns {false} False if not visible
-     */
-    elementIsVisible() {
-        const info = 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'
-        log('error', 'uib:elementIsVisible', info)()
-        this.send({ payload: 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex' })
-        return false
-    } // --- End of elementIsVisible --- //
-
-    /** Does the chosen CSS Selector currently exist?
-     * Automatically sends a msg back to Node-RED unless turned off.
-     * @param {string} cssSelector Required. CSS Selector to examine for visibility
-     * @param {boolean} [msg] Optional, default=true. If true also sends a message back to Node-RED
-     * @returns {boolean} True if the element exists
-     */
-    elementExists(cssSelector, msg = true) {
-        const el = document.querySelector(cssSelector)
-
-        let exists = false
-        if (el !== null) exists = true
-
-        if (msg === true) {
-            this.send({
-                payload: exists,
-                info: `Element "${cssSelector}" ${exists ? 'exists' : 'does not exist'}`
-            })
-        }
-
-        return exists
-    } // --- End of elementExists --- //
-
-    /** Only keep the URL Hash & ignoring query params
-     * @param {string} url URL to extract the hash from
-     * @returns {string} Just the route id
-     */
-    keepHashFromUrl(url) {
-        if (!url) return ''
-        return '#' + url.replace(/^.*#(.*)/, '$1').replace(/\?.*$/, '')
-    }
-
-    /** Set up an event listener to watch for hash changes
-     * and set the watchable urlHash variable
-     */
-    _watchHashChanges() {
-        this.set('urlHash', location.hash)
-        window.addEventListener('hashchange', (event) => {
-            this.set('urlHash', location.hash)
-            if (this.#sendUrlHash === true) {
-                this.send({ topic: 'hashChange', payload: location.hash, newHash: this.keepHashFromUrl(event.newURL), oldHash: this.keepHashFromUrl(event.oldURL) })
-            }
-        })
-    }
-
     /** Returns true/false or a default value for truthy/falsy and other values
      * @param {string|number|boolean|*} val The value to test
      * @param {any} deflt Default value to use if the value is not truthy/falsy
@@ -930,43 +954,19 @@ export const Uib = class Uib {
         return this.#sendUrlHash
     }
 
-    /** Navigate to a new page or a new route (hash)
-     * @param {string} url URL to navigate to. Can be absolute or relative (to current page) or just a hash for a route change
-     * @returns {Location} The new window.location string
-     */
-    navigate(url) {
-        if (url) window.location.href = url
-        return window.location
-    }
-
-    /** Format a number using the INTL standard library - compatible with uib-var filter function
-     * @param {number} value Number to format
-     * @param {number} decimalPlaces Number of decimal places to include. Default=no default
-     * @param {string} intl standard locale spec, e.g. "ja-JP" or "en-GB". Default=navigator.language
-     * @param {object} opts INTL library options object. Optional
-     * @returns {string} formatted number
-     * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/toLocaleString
+    /** DEPRECATED FOR NOW - wasn't working properly.
+     * Is the chosen CSS Selector currently visible to the user? NB: Only finds the FIRST element of the selection.
+     * Requires IntersectionObserver (available to all mainstream browsers from early 2019)
+     * Automatically sends a msg back to Node-RED.
+     * Requires the element to already exist.
+     * @returns {false} False if not visible
      */
-    formatNumber(value, decimalPlaces, intl, opts) {
-        if (isNaN(value)) {
-            log('error', 'formatNumber', `Value must be a number. Value type: "${typeof value}"`)()
-            return 'NaN'
-        }
-        if (!opts) opts = {}
-        if (!intl) intl = navigator.language ? navigator.language : 'en-GB'
-        if (decimalPlaces) {
-            opts.minimumFractionDigits = decimalPlaces
-            opts.maximumFractionDigits = decimalPlaces
-        }
-        let out
-        try {
-            out = Number(value).toLocaleString(intl, opts)
-        } catch (e) {
-            log('error', 'formatNumber', `${e.message}. value=${value}, dp=${decimalPlaces}, intl="${intl}", opts=${JSON.stringify(opts)}`)()
-            return 'NaN'
-        }
-        return out
-    }
+    elementIsVisible() {
+        const info = 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex'
+        log('error', 'uib:elementIsVisible', info)()
+        this.send({ payload: 'elementIsVisible has been temporarily DEPRECATED as it was not working correctly and a fix is complex' })
+        return false
+    } // --- End of elementIsVisible --- //
 
     //#endregion -------- -------- -------- //
 
@@ -2120,6 +2120,7 @@ export const Uib = class Uib {
     }
 
     // ! TODO: Rooms do not auto-reconnect. Add tracking and update _onConnect
+    // ! TODO: Add receipt handler on joining a room.
 
     // NOTE: Rooms only understood by server not client so we have to use custom emits
     //       They do not auto-reconnect

From 73213a4cb386315c003be1d8bfbaadde69833737 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Sat, 30 Dec 2023 14:05:25 +0000
Subject: [PATCH 60/78] Make emoji fonts a var, use in checklist and emoji
 classes. Add basic nav menu formatting incl horizontal menu.

---
 front-end/uib-brand.css     | 61 +++++++++++++++++++++++++++++++------
 front-end/uib-brand.min.css |  4 +--
 2 files changed, 54 insertions(+), 11 deletions(-)

diff --git a/front-end/uib-brand.css b/front-end/uib-brand.css
index f4855628..48467a8e 100644
--- a/front-end/uib-brand.css
+++ b/front-end/uib-brand.css
@@ -70,6 +70,11 @@
     /* For the .grid-fit class, the minimum child element size */
     --grid-fit-min: 15rem;
 
+    /* For nicer emoji's use this as the font-family */
+    --emoji-fonts: "Twemoji Mozilla", "Apple Color Emoji", "Segoe UI Emoji",
+        "Segoe UI Symbol", "Noto Color Emoji", "EmojiOne Color", "Android Emoji",
+        sans-serif;
+
     /*#region --- Brand --- */
     --brand: hsl(
         var(--brand-hue)
@@ -673,6 +678,49 @@ form > label:focus-within {
 
 /*#endregion --- Forms --- */
 
+/*#region --- Menus --- */
+nav a {
+    text-decoration: none;
+    color: inherit;
+    background-color: inherit;
+}
+nav li:not([aria-current]):hover {
+    font-weight: bold;
+}
+nav [aria-current=page] {
+	font-weight: bolder;
+    text-decoration: underline;
+}
+/* identifiable nav entries (li): nav [data-route] */
+/*#region -- Horizontal menu -- */
+nav.horizontal {
+    display: inline-block;
+    padding: 0.5rem;
+}
+nav.horizontal > h2 {
+    display: inline-block;
+    line-height: inherit;
+    font-size: inherit;
+    margin: 0;
+}
+nav.horizontal [role="menubar"] { /* ul */
+    list-style-type: none;
+    display: inline-block;
+    margin: 0;
+    padding: 0 0 0 0.5rem;
+
+}
+nav.horizontal li { /* [role="menuitem"], [data-route], li */
+    display: inline-block;
+    padding: 0 0.4rem 0 0.1rem;
+}
+nav.horizontal li:not(:last-child) {
+    border-right: 2px solid;
+    border-right-color: inherit;
+}
+/*#endregion -- ---- -- */
+/*#endregion --- Menus --- */
+
 /*#region --- Lists --- */
 .checklist {
     margin-inline-start: var(--base-margin);
@@ -682,29 +730,24 @@ form > label:focus-within {
 li.check, li.completed {
     list-style-type: "✅";
     padding-left: 0.4rem;
+    font-family: var(--emoji-fonts);
 }
 li.uncheck, li.unstarted {
     list-style-type: "❌";
     padding-left: 0.4rem;
+    font-family: var(--emoji-fonts);
 }
 li.started {
     list-style-type: "✔️";
     padding-left: 0.4rem;
+    font-family: var(--emoji-fonts);
 }
 /*#endregion --- Lists --- */
 
 /*#region ---- Utility ---- */
 
 .emoji { /* Nicer, cross-platform emoji's */
-    font-family: 
-        "Twemoji Mozilla",
-        "Apple Color Emoji",
-        "Segoe UI Emoji",
-        "Segoe UI Symbol",
-        "Noto Color Emoji",
-        "EmojiOne Color",
-        "Android Emoji",
-        sans-serif;
+    font-family: var(--emoji-fonts);
 }
 
 .noborder {
diff --git a/front-end/uib-brand.min.css b/front-end/uib-brand.min.css
index 5b3fdf01..a5d41bd1 100644
--- a/front-end/uib-brand.min.css
+++ b/front-end/uib-brand.min.css
@@ -1,4 +1,4 @@
-:root,:root.light{color-scheme:light dark;--mode:light;--uib-css:uib-brand;--font-family:sans-serif;--brand-hue:200;--text-hue:var(--brand-hue);--surface-hue:var(--brand-hue);--complementary-offset:180;--accent-offset:30;--saturation-bias:0;--light-saturation:.66;--dark-saturation:calc(var(--light-saturation) * .6);--saturation-value:var(--light-saturation);--saturation:calc(var(--saturation-value) + var(--saturation-bias));--lightness-bias:0;--light-lightness:.57;--dark-lightness:calc(var(--light-lightness) * .75);--lightness-value:var(--light-lightness);--lightness:calc(var(--lightness-value) + var(--lightness-bias));--base-margin:1rem;--border-radius:0.5rem;--border-pad:0.5rem;--border-margin:0;--grid-fit-min:15rem;--brand:hsl(
+:root,:root.light{color-scheme:light dark;--mode:light;--uib-css:uib-brand;--font-family:sans-serif;--brand-hue:200;--text-hue:var(--brand-hue);--surface-hue:var(--brand-hue);--complementary-offset:180;--accent-offset:30;--saturation-bias:0;--light-saturation:.66;--dark-saturation:calc(var(--light-saturation) * .6);--saturation-value:var(--light-saturation);--saturation:calc(var(--saturation-value) + var(--saturation-bias));--lightness-bias:0;--light-lightness:.57;--dark-lightness:calc(var(--light-lightness) * .75);--lightness-value:var(--light-lightness);--lightness:calc(var(--lightness-value) + var(--lightness-bias));--base-margin:1rem;--border-radius:0.5rem;--border-pad:0.5rem;--border-margin:0;--grid-fit-min:15rem;--emoji-fonts:"Twemoji Mozilla","Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji","EmojiOne Color","Android Emoji",sans-serif;--brand:hsl(
         var(--brand-hue)
         calc(100% * var(--saturation))
         calc(100% * var(--lightness))
@@ -121,4 +121,4 @@
         var(--secondary-hue)
         calc(100% * var(--saturation))
         calc(100% * var(--lightness))
-    );--secondary:var(--secondary-bg)}@media (prefers-color-scheme:light){:root{color-scheme:light dark;--mode:light}}@media (prefers-color-scheme:dark){:root{color-scheme:dark light;--mode:dark;--saturation-value:var(--dark-saturation);--lightness-value:var(--dark-lightness);--surface-shadow:var(--surface-shadow-dark);--shadow-strength:var(--shadow-strength-dark);--text-factor:var(--dark-text-factor);--text-lightness:var(--dark-text-lightness);--surfaces-factor:var(--dark-surfaces-factor);--surfaces-lightness:var(--dark-surfaces-lightness)}}:root.dark{color-scheme:dark 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\ No newline at end of file
+    );--secondary:var(--secondary-bg)}@media (prefers-color-scheme:light){:root{color-scheme:light dark;--mode:light}}@media (prefers-color-scheme:dark){:root{color-scheme:dark light;--mode:dark;--saturation-value:var(--dark-saturation);--lightness-value:var(--dark-lightness);--surface-shadow:var(--surface-shadow-dark);--shadow-strength:var(--shadow-strength-dark);--text-factor:var(--dark-text-factor);--text-lightness:var(--dark-text-lightness);--surfaces-factor:var(--dark-surfaces-factor);--surfaces-lightness:var(--dark-surfaces-lightness)}}:root.dark{color-scheme:dark light;--mode:dark;--saturation-value:var(--dark-saturation);--lightness-value:var(--dark-lightness);--surface-shadow:var(--surface-shadow-dark);--shadow-strength:var(--shadow-strength-dark);--text-factor:var(--dark-text-factor);--text-lightness:var(--dark-text-lightness);--surfaces-factor:var(--dark-surfaces-factor);--surfaces-lightness:var(--dark-surfaces-lightness)}.brand{color:var(--text1);background-color:var(--brand)}.complementary{color:var(--text1);background-color:var(--complementary)}.surface1{background-color:var(--surface1);color:var(--text2)}.surface2{background-color:var(--surface2);color:var(--text2)}.surface3{background-color:var(--surface3);color:var(--text1)}.surface4{background-color:var(--surface4);color:var(--text1)}.surface5{background-color:var(--surface5);color:var(--text1)}.rad-shadow{box-shadow:var(--shadow)}.info{color:var(--text1)!important;background-color:var(--info)!important}.info-intense{color:var(--text1)!important;background-color:var(--info-intense)!important}.success{color:var(--text1)!important;background-color:var(--success)!important}.success-intense{color:var(--text1)!important;background-color:var(--success-intense)!important}.warn,.warning{color:var(--text1)!important;background-color:var(--warning)!important}.warn-intense,.warning-intense{color:var(--text1)!important;background-color:var(--warning-intense)!important}.danger,.error,.failure{color:var(--text1)!important;background-color:var(--failure)!important}.danger-intense,.error-intense,.failure-intense{color:var(--text1)!important;background-color:var(--failure-intense)!important}.primary{color:var(--primary-fg);background-color:var(--primary-bg)}.secondary{color:var(--secondary-fg);background-color:var(--secondary-bg)}*{box-sizing:border-box}html{line-height:1.5;font-size:100%;background-color:var(--surface2);color:var(--text2);accent-color:var(--brand)}body{margin-left:var(--base-margin);margin-right:var(--base-margin);font-family:var(--font-family)}h1,h2,h3,h4,h5,h6,heading{line-height:1.3}canvas,img,picture,svg,video{object-fit:cover;vertical-align:bottom;max-width:100%;background-color:var(--surface2);margin:var(--base-margin)}blockquote,dl,dt,h1,h2,h3,h4,h5,h6,heading,li,p{overflow-wrap:break-word;-webkit-hyphens:auto;hyphens:auto;word-break:break-word}div>p{margin-left:var(--base-margin);margin-right:var(--base-margin)}button,input[type=button 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solid;border-right-color:inherit}.checklist{margin-inline-start:var(--base-margin);margin-inline-end:var(--base-margin);padding-inline-start:.2rem}li.check,li.completed{list-style-type:"✅";padding-left:.4rem;font-family:var(--emoji-fonts)}li.uncheck,li.unstarted{list-style-type:"❌";padding-left:.4rem;font-family:var(--emoji-fonts)}li.started{list-style-type:"✔️";padding-left:.4rem;font-family:var(--emoji-fonts)}.emoji{font-family:var(--emoji-fonts)}.noborder{border:none}.border{border:1px solid var(--text3);border-radius:var(--border-radius);padding:var(--border-pad);margin:var(--border-margin)}.box{border:1px solid var(--text3);border-radius:var(--border-radius);padding:.5rem}.box h2,.box h3,.box h4,.box h5,.box h6{margin-top:.5rem}.with-subtitle{margin-bottom:0}[role=doc-subtitle]{font-size:smaller;font-style:italic;margin-bottom:1em}.uppercase{text-transform:uppercase}.center,.centre{margin-left:auto;margin-right:auto;text-align:center}.animate-pulse{animation:pulse 2s cubic-bezier(.4,0,.6,1) infinite}@keyframes pulse{50%{opacity:.5}}.status-side-panel{border-radius:9999px;width:.5rem;height:100%;background-color:var(--surface1)}.text-smaller{font-size:smaller}.text-larger{font-size:larger}.compact{margin:0;padding-top:.2rem;padding-bottom:.2rem}button.compact{padding:2px 5px;border-radius:0;background:inherit;margin:2px}.toaster{position:absolute;top:0;left:0;min-width:100vw;min-height:100vh;-webkit-backdrop-filter:grayscale(60%) blur(10px);backdrop-filter:grayscale(60%) blur(10px);display:flex;flex-direction:column;justify-content:center;align-items:center;z-index:998}.toast{border:4px solid var(--text3);border-radius:var(--border-radius);box-shadow:var(--shadow2);background-clip:border-box;box-sizing:border-box;min-width:50vw;max-width:50vw;max-height:50vh;overflow-y:auto;padding:1em;margin-bottom:.5em;margin-top:.5em;z-index:999}.toast.alert{border:4px solid var(--text3);border-radius:var(--border-radius);box-shadow:var(--shadow2);background-clip:border-box;box-sizing:border-box;min-width:50vw;max-width:50vw;max-height:50vh;overflow-y:auto;padding:1em;margin-bottom:.5em;margin-top:.5em;z-index:999}.toast-head{font-weight:700}.status-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(14em,1fr));gap:.5rem;list-style-position:inside}.status-heading{grid-column:1/-1}.status-link{display:contents;color:inherit;text-decoration:none}.grid{display:grid;gap:.5rem}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.5rem}.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.5rem}.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:.5rem}.grid-fit{display:grid;gap:.5rem;grid-template-columns:repeat(auto-fit,minmax(min(var(--grid-fit-min),100%),1fr))}.flex{display:flex;gap:.5rem}.flex-wrap{display:flex;flex-wrap:wrap;gap:.5rem}#uib_last_msg_wrap{position:relative}#uib_last_msg_wrap>button{display:none;position:absolute;color:hsl(0,0%,50%,.5)}#uib_last_msg_wrap:hover>button{display:initial}#uib_last_msg_wrap>button:hover{color:#7f7f7f}.syntax-highlight{color:#fff;display:block;background-color:#000;padding:5px 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\ No newline at end of file

From 6c9163be475851c592151956ea087c1c378a8239 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Sat, 30 Dec 2023 14:07:56 +0000
Subject: [PATCH 61/78] Updates

---
 CHANGELOG.md                          | 175 +++++++++++++++++---------
 docs/client-docs/custom-components.md |   2 +-
 docs/client-docs/fe-router.md         | 159 +++++++++++++++++++----
 docs/client-docs/functions.md         |  30 ++++-
 docs/client-docs/image-1.png          | Bin 0 -> 11090 bytes
 docs/client-docs/uib-brand-css.md     |  11 ++
 6 files changed, 290 insertions(+), 87 deletions(-)
 create mode 100644 docs/client-docs/image-1.png

diff --git a/CHANGELOG.md b/CHANGELOG.md
index cf51e20c..224dfae8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@ Please see the documentation for archived changelogs - a new archive is produced
 
 * uib router - if no routerConfig.defaultRoute set, use the first (zeroth) defined route.
 * `uib-save` import - initial deployment does not connect to node - need to clear the entry & mark as invalid. Also, no url = invalid
+
 * To reproduce: [ref](https://discourse.nodered.org/t/uibuilder-new-release-v6-7-new-front-end-router-improvements-to-uib-html-uib-save-and-more/83106/4)
 
   Pull a uibuilder node in a flow.
@@ -23,7 +24,22 @@ Please see the documentation for archived changelogs - a new archive is produced
 
 * Looks like it's validateVersion that triggers this red triangle.. [ref](https://discourse.nodered.org/t/uibuilder-new-release-v6-7-new-front-end-router-improvements-to-uib-html-uib-save-and-more/83106/7?u=totallyinformation)
 
-## Started
+## To Do
+
+* uibuilder client
+  * Add `formateDate` standard utility fn. [ref](https://discourse.nodered.org/t/format-date-at-yyyydd-hh-mm-ss/83130/12?u=totallyinformation)
+  * Add uibuilder.tag()
+  * Add client msg filter for URL Hash.
+
+* Examples
+  * update the `remote-commands` example
+  * Add/update the `text updates` example
+  * Add new low-code example
+  * Add example save current page to file
+
+Docs
+  * Update docs for ctrl msgs and msg._uib return data to say that anything set via the socket.io auth can only update when the client reconnects. 
+  * document clientTimeDifference
 
 * Socket.IO rooms. [ref](https://socket.io/docs/v4/rooms/) - Rooms can be used to filter messages for specific destinations (e.g. client or page id) or to create client-to-client comms.
   * Need a way to join rooms from Node-RED
@@ -34,61 +50,39 @@ Please see the documentation for archived changelogs - a new archive is produced
     * [ ] `socket.on('uib-room-send', ...)` Add option to also send a uibuilder msg.
     * [ ] Incorporate `msg._uib.roomId` for sending to custom rooms
     * [ ] ? Allow sending to different uib namespaces? would likely need an option flag for security?
-    * [ ] ? Allow global as well as NS rooms? - allow sending between different uib connected clients? may req client to connect to the default NS as well. 
-          [ref](https://socket.io/docs/v4/socket-io-protocol/#introduction)
-    * [ ] Line 525 - remove test code
+    * [ ] Allow global as well as NS rooms - allow sending between different uib connected clients. 
+          [ref](https://socket.io/docs/v4/socket-io-protocol/#introduction) - `this.io.of('/').emit('uibuilder:global', 'Hello from the server. NS: "/"')`
     * [ ] Remove console.log from addNs
   * client
-    * [x] joinRoom, leaveRoom, sendRoom
+    * [x] joinRoom, leaveRoom, sendRoom - allows clients to join/leave/message any arbitrary room
+    * [x] Add additional listener for the default (global) namespace
+    * [ ] Add `globalSend` function
     * [ ] Add listener when joining a room, remove when leaving
-    * [x] Add additional listener for the default namespace
     * [ ] Document new managed var: `globalMsg`.
 
-* `uib-var`
-  * Add filter attribute. A filter is a JavaScript function accessible from `window` global or `uibuilder` contexts. The filter is applied to the variable value before display.
-    * [x] Apply args
-    * [x] filter the input - at least limit the length of the attr (limited to 126 chars)
-    * Test filters with
-      * [x] `uibuilder.xxxxx`
-      * [x] `mything.myfunc`
-      * [x] `mything.myfunc(1,2,3)`
-      * [x] `mything.myfunc()`
-    * [x] Test filters with arguments
-    * [x] Test passing another global var as an argument
-    * [ ] Test different order of uib-var attributes
-    * [x] Document changes
-  * [x] Add `topic` attribute - automatically listens for msgs with given topic and updates.
-
-## To Do
-
 * uib-router
-  * For convenience, add current route details and curr/prev route id to data when route changes.
+  * [ ] if no routerConfig.defaultRoute set, use the first (zeroth) defined route.
+  * add `rotate` method to auto-rotate through routes. Needs ms and stop/start args.
   * Add 1st show marker to route change to allow client to ask for cache update
-  * Update docs to allow for description and other props on route array.
-  * if no routerConfig.defaultRoute set, use the first (zeroth) defined route.
-  * Add preload option so that updates to ui can happen before display.
-  * Document standards for navigation menus.
-  * Add optional nav menu list css selector (css class) allowing auto-mark of current page & add `aria-current="page"`
+  * Update example
+  * Make this.config.routes a SET to prevent duplicates. Or possibly an object. Needs some code changes.
+  * Methods needed:
+    * Delete route - need to update routeIds
+    * Update/reload route
+    * shutdown - that removes all elements
+    * delete templates - unloads a list of (or all) templates
+    * reload templates - to facilitate updates of a list of (or all) templates
+    * auto-rotation of routes - uib..navigate(nextRoute)
+    * next/prev route navigation
+  * Additional options:
+    * Add pre-load option early load of all routes instead of default lazy-load.
+    * unload templates after they are added to the route container. Only if hide=true. `unload: true`
+    * Maybe: options to auto-load js and css files with the same name as a template file.
 
 * uibuilder node
   * Add manual entry field to editor config for a URL scheme to open the instanceRoot folder in an editor new window. Pre-fill with vscode entry for localhost. Partially fill with vscode-remote otherwise (or maybe have a button).
 
-* uibuilder fe
-  * Add `formateDate` standard utility fn. [ref](https://discourse.nodered.org/t/format-date-at-yyyydd-hh-mm-ss/83130/12?u=totallyinformation)
-
-* Consider special variable `managedTags`? where each entry update will automatically update the matching element ID and if the element doesn't yet exist, will watch for it and update as soon as it is added.
-
-* update the `remote-commands` example
-* Add/update the `text updates` example
-* Add new low-code example
-* Update docs for ctrl msgs and msg._uib return data to say that anything set via the socket.io auth can only update when the client reconnects. Also document clientTimeDifference
-* Fixup CSS for showDialog (notifications/alerts) - left/right margin on p and svg need removing. Maybe on toast-head class too. Parent class is "toast".
-* Add client msg filter for URL Hash.
 * Incorporate ideas from: https://www.htmhell.dev/adventcalendar/2023/2/
-* Add uibuilder.tag()
-* Add example save current page to file
-
-* ??? uib.setAttr(selector, attr, val)? 
 
 * More flexible low-code class attribute handling.
   * In ui.js
@@ -104,6 +98,8 @@ Please see the documentation for archived changelogs - a new archive is produced
 * `uib-template` - New node to take a msg._ui template input and update parts of it belore sending (e.g. parent, id, ...). `uib-override` or `uib-config`? [Ref](https://discourse.nodered.org/t/an-idea-for-third-party-ui-in-ui-builder/83196/4?u=totallyinformation)
 * `<uib-loop>`. [Ref](https://discourse.nodered.org/t/ui/82818/33?u=totallyinformation) - A web component that takes a variable to loop over.
 * Enhance `uib-save` - allow URL to be driven by msg or context (just add new options to select, don't bother with typed input)
+* ??? uib.setAttr(selector, attr, val)? 
+* Consider special variable `managedTags`? where each entry update will automatically update the matching element ID and if the element doesn't yet exist, will watch for it and update as soon as it is added.
 
 ------------
 
@@ -111,19 +107,35 @@ Please see the documentation for archived changelogs - a new archive is produced
 
 <!-- Nothing currently. -->
 
-### Highlights
+### 📌 Highlights
+
+* The `uibrouter` library gets some serious updates in this version. Including automatic menu updates (to highlight the current route) and new uibuilder variables to use with `<uib-var>` to show titles and descriptions that update automatically.
+
+* The `<uib-var>` HTML component gets
+
+  * **This is BIG!** - A `topic` attribute (use instead of the `variable` attribute) that automatically watches for messages from Node-RED matching the topic and outputs the payload onto the page. This becomes the _easiest_ way to automatically update the page! It is similar to mustache tags (`{{varname}}`) in frameworks but has the advantage that it is 100% vanilla standard HTML.
+
+  * A `filter` attribute that can be used along-side `variable` or `topic` or on its own. The attribute receives the name of a function to run whenever the source data changes. Use for formatting output. A new function `uibuilder.formatNumber` has been added that is compatible, it outputs a formatted version of an input number according to the locale and number of decimal places specified. `<uib-var topic="mytopic" filter="uibuilder.formatNumber(2, 'de-DE')">[...]</uib-var>`. You can, of course, create your own filter functions.
+  
+  * Access to your `./index.css` style sheet file. This lets output be styled like the rest of your page.
+
+* The client library gets
+
+  * Connected to a new "global" socket.io "room" allowing uibuilder connected pages to talk to each other. Note that this is still very basic, only the receiver is in place as yet. There is no function to do a global send.
+  * New functions `joinRoom(room)`, `leaveRoom(room)`, `sendRoom(room, msg)` - to interact with arbitrary communication "rooms". Not fully working yet but will eventually allow any uibuilder connect node or client to communicate with 1 or many other connected nodes/clients.
+  * A new `navigate` function and command. Triggers a page change or a route change either from front-end JavaScript or via a command message in Node-RED. Put a client into Kiosk mode and rotate pages or route displays all from Node-RED!
+  * A new `scrollTo` function and command. Scrolls the visible page to a specific location either from front-end JavaScript or via a command message in Node-RED.
+  * New UI functions `addClass(classNames, el)` and `removeClass(classNames, el)` to make class handling easier.
+  * New `connect()` and `disconnect()` functions to manually connect/disconnect the Socket.IO connections.
 
-* New `navigate` function and command. Triggers a page change or a route change either from front-end JavaScript or via a command message in Node-RED. Put a client into Kiosk mode and rotate pages or route displays all from Node-RED!
-* New `scrollTo` function and command. Scrolls the visible page to a specific location either from front-end JavaScript or via a command message in Node-RED.
 * No-code and low-code features now all allow more flexible class handling (add, remove, and replace using lists). HTML element data outputs also now return an array of class names, not just a combined string.
 * Front-end commands issued from Node-RED can now take a `quiet` option set to `true` to prevent the return message. e.g. `{"_uib": {"command":"navigate","prop":"#newroute","quiet":true}}`
 * Front-end developers now have full access to the `ui.js` library via the `$ui` global.
-* `addClass(classNames, el)` and `removeClass(classNames, el)` UI functions added to the client library
-* `connect()` and `disconnect()` functions added to the client library to manually connect/disconnect the Socket.IO connections
 
-### `uibrouter`
+### `uib-cache`
 
-* [Issue #232](https://github.com/TotallyInformation/node-red-contrib-uibuilder/issues/232) - Ensure origin script is removed after re-applying to ensure only 1 instance shows instead of 2.
+* **FIXED** - bug introduced by last version's correction of `connections` count meant that "Only replay cache when client is really new" option resulted in the cache never being sent.
+* Re-worked node's html into latest format with JS in separate resources file.
 
 ### `uib-html`
 
@@ -131,35 +143,69 @@ Please see the documentation for archived changelogs - a new archive is produced
 
 ### `uib-save`
 
-* **FIXED** usePageName logic.
+* **FIXED** - usePageName logic.
 * URL (uibuilder instance) drop-down list is now sorted
+* On copy/paste or import, link to uibuilder node is now cleared.
+
+### `uib-tag`
+
+* **FIXED** - Allow blanks in some typed input fields.
+
+### `uib-update`
+
+* **FIXED** - Allow blanks in some typed input fields.
 
 ### Client library
 
-* **FIXED** - Some reported client data was incorrect. Notably the `connections`, and `lastNavType` properties. The `connections` property has now been corrected. The `lastNavType`, I now realise will never be correctly updated by the client and therefore it has been removed. Fixing these has also resulted in some simplification of the client code.
+* **FIXES**
+
+  * Some reported client data was incorrect. Notably the `connections`, and `lastNavType` properties. The `connections` property has now been corrected. The `lastNavType`, I now realise will never be correctly updated by the client and therefore it has been removed. Fixing these has also resulted in some simplification of the client code.
 
 * **NEW** - `$ui` is a new global created by the library which gives full access to the `ui.js` library, that library presents an instance of the `Ui` class. So typing `$ui.version` in the browser dev console will return the current version of the ui library. Also available as `uibuilder.$ui` just in case `$ui` was already taken when the uibuilder library is loaded.
 
-* **NEW ui functions** - `addClass(classNames, el)`, `removeClass(classNames, el)` - see `ui.js` below for details.
+* **NEW** managed variable `globalMsg` - contains the last message received over the global socket. The global socket allows uibuilder connected pages to talk to each other.
+
+* **NEW Functions that have Node-RED remote commands**
+
+  * `navigate(url)` - Load a new web page or change routes. Can be triggered from Node-RED with msg `{"_uib": {"command":"navigate","prop":"#newroute"}}`. See [Client Functions (navigate) in the docs](client-docs/functions#navigate) for details. URL's can be full, relative (to the current page) or routing (hashes). Obviously, can be called in front-end JavaScript as well as `uibuilder.navigate('./page2.html')` etc.
 
-* **NEW Function and Command** - `navigate(url)` - Load a new web page or change routes. Can be triggered from Node-RED with msg `{"_uib": {"command":"navigate","prop":"#newroute"}}`. See [Client Functions (navigate) in the docs](client-docs/functions#navigate) for details. URL's can be full, relative (to the current page) or routing (hashes). Obviously, can be called in front-end JavaScript as well as `uibuilder.navigate('./page2.html')` etc.
+  * `scrollTo(cssSelector)` - Scroll visible page to an element based on a CSS Selector. See [Client Functions (scrollTo) in the docs](client-docs/functions#scrollTo) for details. `top`, `start`, `bottom`, `end` can be used as shortcuts for the top/bottom of the page. An optional 2nd parameter gives more control.
 
-* **NEW Function and Command** - `scrollTo(cssSelector)` - Scroll visible page to an element based on a CSS Selector. See [Client Functions (scrollTo) in the docs](client-docs/functions#scrollTo) for details. `top`, `start`, `bottom`, `end` can be used as shortcuts for the top/bottom of the page. An optional 2nd parameter gives more control.
+* **NEW Functions (without Node-RED remote commands)**
 
-* **NEW Functions** - `connect()`, `disconnect()` - These manually connect and disconnect the Socket.IO communications between the browser and Node-RED.
+  * `connect()`, `disconnect()` - These manually connect and disconnect the Socket.IO communications between the browser and Node-RED.
 
+  * `formatNumber(value, decimalPlaces, intl, opts)` - Compatible with the `<uib-var>` component's `filter` attribute. Uses the JavaScript standard INTL library to allow locale-based formatting.
+  
+  * `keepHashFromUrl()` - Returns the route id from the URL.
+  * `joinRoom(room)`, `leaveRoom(room)`, `sendRoom(room, msg)` - allows clients to join/leave/message any arbitrary room
+
+* **NEW ui functions** - `addClass(classNames, el)`, `removeClass(classNames, el)` - see `ui.js` below for details.
+
+* **NEW** - the client has some early code for dealing with Socket.IO "rooms". These are really a SIO server function but some methods updated to take them into account.
+* **NEW** - the client now subscribes to a new "global" socket.io channel. This allows clients to talk to each other
 * Added `quiet` property to remote command processing. Set `msg._uib.quiet` to `true` to stop the library returning a message to Node-RED on completion of the command.
 * When using `uiGet` or `nodeGet` functions/commands, if class attribute is present, an additional `classes` property is returned which is an array of the class names.
+* Moved  `$` and `$$` functions to `ui.js` library. This library references them. So no change to usage.
 
 * **DEPRECATED Function** - `elementIsVisible` - Was not working correctly and a fix is complex. Will revisit in the future. Let me know if you need this function. This would normally be a breaking change but the function is still there - it returns a console msg and a node-red msg still - and as it wasn't working, I doubt anyone has used it.
-* Moved  `$` and `$$` functions to `ui.js` library. This library references them. So no change to usage.
+
+
+### `uibrouter` library
+
+* **FIXED** [Issue #232](https://github.com/TotallyInformation/node-red-contrib-uibuilder/issues/232) - Ensure origin script is removed after re-applying to ensure only 1 instance shows instead of 2.
+* Version bumped to v1.0.1
+* **NEW** uibuilder managed variables added to make it easier to use with `<uib-var>`. [`uibrouter_CurrentRoute`, `uibrouter_CurrentTitle`, `uibrouter_CurrentDescription`, `uibrouter_CurrentDetails`]. These are automatically updated whenever a route change occurs.
+* **NEW Functions** - `routeTitle`, `routeDescription` - return the current route's title and description properties if set or the ID if not.
+* **NEW Function** - `currentRoute` - returns the current routes configuration object.
+* **NEW Function** - `setCurrentMenuItems` - Updates any on-page elements matching the selector `li[data-route]` such that any having a data-route attribute matching the current route id have the `currentRoute` class added. It is removed from all other matches. This makes it very easy to highlight the current route in any on-page menu's.
 
 ### `uib-var` custom web component
 
+* **NEW**: Added `topic` attribute - auto-monitors for messages from Node-RED with the given topic. `msg.payload` contains the value to show. Applies filter if present. Just send a msg from Node-RED with the appropriate topic and the display will automatically update! (requires UIBUILDER)
+* **NEW**: Added filter attribute. A filter is a JavaScript function accessible from `window` global or `uibuilder` contexts. The filter is applied to the variable value before display. Can now supply ONLY the `filter` attribute (without `variable` or `topic`). This allows arbitrarily complex processing.
 * Auto load `./index.css` instead of `../uibuilder/uib-brand.min.css` - enables your own custom styling to be used. Not dependent on UIBUILDER, simply serve `index.css` from the same location as your main page.
-* Added `topic` attribute - auto-monitors for messages from Node-RED with the given topic. `msg.payload` contains the value to show. Applies filter if present. Just send a msg from Node-RED with the appropriate topic and the display will automatically update! (requires UIBUILDER)
-* Can now supply ONLY the `filter` attribute (without `variable` or `topic`). This allows arbitrarily complex processing.
-* If using UIBUILDER, the resulting HTML output is sanitised if you have the DOMPurify library loaded. If the output is a JavaScript object, it will be highlighted using uibuilder's standard JSON highlighter.
+* When using UIBUILDER, the resulting HTML output is sanitised if you have the DOMPurify library loaded. If the output is a JavaScript object, it will be highlighted using uibuilder's standard JSON highlighter.
 * Improved error handling, especially for the `filter` attribute and its processing.
 
 ### `ui.js` low-code->HTML hydration library
@@ -174,8 +220,10 @@ Please see the documentation for archived changelogs - a new archive is produced
 ### `uib-brand.css`
 
 * `body` left/right margins are now set by a CSS var `--base-margin` so they can be adjusted more easily.
+* Added new variable `--emoji-fonts`. Use as `font-family: var(--emoji-fonts);` for better emoji's. Used by custom bullets below.
 * Added `li.check` (AKA `li.completed`), `li.uncheck` (AKA `li.unstarted`), and `li.started` classes which change list bullets to ✅, ❌, and ✔️ respectively.
 * Added `ui.checklist` with `--base-margin` left/right margins and a little more space for the check bullets.
+* Added basic nav menu formatting using `nav` tag. Including basic horizontal menu (`nav.horizontal` class) formatting. Assumes list embedded in a nav tag and that the list has correct aria roles set.
 
 ### Documentation
 
@@ -197,11 +245,16 @@ Please see the documentation for archived changelogs - a new archive is produced
 
 * The new front-end routing library is available. Easy to use, robust and reasonably comprehensive. It is not dependent on uibuilder but offered with it to enable Single-Page Apps (SPA's) to be easily created with uibuilder.
 * The `uib-html` node now allows an HTML string wrapper. This defaults to uibuilder's default "Blank" template HTML or can be overridden using `msg.template`. This lets you create a fully working page from no-code and low-code configurations that can be fed direct to `uib-save` or used in Dashboard or with http-in/-out nodes. Or indeed with external web server tools.
+* A new method of easily getting dynamic updates onto the web page has been added, the `<uib-var>` tag.
 
 ### New client library - uibrouter - front-end routing library
 
 A complete, standalone library for doing front-end routing with both internal and external templates. Lightweight and simple to use. See the [documentation](docs/client-docs/fe-router.md) for details.
 
+### New client custom web component `<uib-var>`
+
+The `<uib-var>` tag provides an easy way to get dynamically updated content into your web page. See the examples library and the documentation for more details. In this release, allows the specifying of a managed uibuilder variable which will be inserted into the page and automatically updated whenever the variable updates. This is similar to mustache tags in many front-end frameworks (`{{myvar}}`) but, unlike those frameworks, is totally vanilla, standards-based. Expect further improvements in future releases.
+
 ### `uib-html` improvements
 
 * The `uib-html` node now accepts a `msg.template` property which, if provided, MUST contain a valid HTML page template.
diff --git a/docs/client-docs/custom-components.md b/docs/client-docs/custom-components.md
index 351be983..b6b4978c 100644
--- a/docs/client-docs/custom-components.md
+++ b/docs/client-docs/custom-components.md
@@ -3,7 +3,7 @@ title: Custom web components
 description: >
    Web components built into the UIBUILDER client and information about external web components.
 created: 2023-10-08 13:44:56
-lastUpdated: 2023-10-08 14:59:10
+lastUpdated: 2023-12-29 17:25:31
 ---
 
 UIBUILDER can work with front-end frameworks such as REACT, VueJS, etc. However, it does not need them. But one thing that these frameworks often have are collections of components that you can add to your HTML. Each component will produce something useful in your web page such as an information card, tabbed interface, navigation menu, etc.
diff --git a/docs/client-docs/fe-router.md b/docs/client-docs/fe-router.md
index 527299c3..d3338399 100644
--- a/docs/client-docs/fe-router.md
+++ b/docs/client-docs/fe-router.md
@@ -3,7 +3,7 @@ title: UIBUILDER Front-End Router Library
 description: >
   Details on the configuration and use of UIBUILDER's front-end router.
 created: 2022-02-01 11:15:27
-lastUpdated: 2023-11-25 14:09:19
+lastUpdated: 2023-12-29 17:25:14
 ---
 
 The `uibrouter` front-end library defines a `UibRouter` class. This allows both internal and external content to be dynamically shown, allowing the creation of "Single-Page Apps" (SPA's) or simply keeping parts of the UI hidden from the users until they need them.
@@ -89,49 +89,100 @@ Which mode you use will be dependent on what you want to achieve.
 
 TBC - See the example below for configuration settings.
 
+### Configuration Schema
+
+```js
+/** Type definitions
+ * 
+ * routeDefinition - configuration for each route
+ * @typedef {object} routeDefinition Single route configuration
+ * @property {string} id REQUIRED. Route ID
+ * @property {string} src REQUIRED. CSS Selector for template tag routes, url for external routes
+ * @property {"url"|undefined} [type] OPTIONAL. "url" for external routes
+ * @property {string} [title] OPTIONAL. Text to use as a short title for the route
+ * @property {string} [description] OPTIONAL. Text to use as a long description for the route
+ * 
+ * UibRouterConfig - main configuration
+ * @typedef {object} UibRouterConfig Configuration for the UiBRouter class instances
+ * @property {routeDefinition[]} routes REQUIRED. Array of route definitions
+ * @property {string} [defaultRoute] OPTIONAL. If set to a route id, that route will be automatically shown on load
+ * @property {string} [routeContainer] OPTIONAL. CSS Selector for an HTML Element containing routes
+ * @property {boolean} [hide] OPTIONAL. If TRUE, routes will be hidden/shown on change instead of removed/added
+ * @property {boolean} [unload] OPTIONAL. If TRUE, route templates will be unloaded from DOM after access. Only useful with the `hide` option
+ * 
+ */
+```
+
 ## Defining route templates
 
 Internal route templates are simply valid HTML wrapped in a `<template>` tag. They may contain `<style>` and `<script>` tags if needed though note the potential issues listed below. Internal templates can go into the `<head>` section of your HTML if you want to keep the `<body>` clear. Template tags are standard HTML and are not loaded into the DOM.
 
 External route templates are simply HTML files with the same format as the internal route templates shown (without the `<template>` tags). They should be HTML document fragments and so should not have `<!doctype html>`, `<html>`, `<head>`, or `<body>` tags. The router will automatically load the templates on startup. The external templates are loaded to the end of the `<head>` section of the page HTML.
 
-## Events
+## Defining navigation menus
 
-These are the custom `document` events used by the router class. Listen for them using `document.addEventListener('eventname', callbackFn)`. The callback function may receive additional data as an argument where shown below.
+There are many different ways to define navigation menus in HTML, too many to provide a function that would generate them automatically.
 
-In addition, if using UIBUILDER, the managed variable `uibrouter` will be updated as indicated in the list. This can be monitored via `uibuilder.onChange('uibrouter', (eventname) => { .... })`
+### Manual menu definitions
 
-* `uibrouter:loaded` - When all internal and external routes have loaded. (`uibuilder.set('uibrouter', 'loaded')`)
-* `uibrouter:route-changed` - when a route change is successful. Details contain new and old route id's. (`uibuilder.set('uibrouter', 'route changed')`)
-* `uibrouter:route-change-failed` - when a route change fails and is rolled back. Details contain new and old route id's. (`uibuilder.set('uibrouter', 'route change failed')`)
-* `uibrouter:routes-added` - When new routes added (via `router.addRoutes()`). (`uibuilder.set('uibrouter', 'routes added')`)
+To enable the router library to mark the current route in a menu, all you need to do is to use an HTML list where list items are marked with `<li data-route="routeid">`. Wherever `routeid` matches the new current route, the router will automatically add attributes `<li data-route="routeid" class="currentRoute" aria-current="page">`. Removing them from all other `li` tags having a `data-route` attribute.
 
-### Example (route change)
+This means that you can have multiple menu's on-page and each can be styled differently.
 
-```javascript
-// Assumes use of uibuilder and assumes `const router = new uibrouter(config)`
-uibuilder.onChange('uibrouter', (eventname) => {
-    if (eventname === 'route changed') {
-        // Uses 2 of the router variables - see below for the full list
-        console.log(`ROUTE CHANGED. New Route: ${router.currentRouteId}, Old Route: ${router.previousRouteId}`)
-    }
-})
+#### Example
+
+```html
+<header>
+    <h1 class="with-subtitle">Home Panel: <uib-var variable="uibrouter_CurrentTitle"></uib-var></h1>
+    <div role="doc-subtitle">Using the UIBUILDER IIFE &amp; router libraries</div>
+    
+    <nav id="main-menu" class="horizontal" aria-labelledby="primary-navigation">
+        <h2 id="primary-navigation">Menu</h2>:
+        <ul id="routemenu" role="menubar" aria-describedby="main-menu">
+            <li data-route="route01" tabindex="0" role="menuitem"><a href="#route01">Home Summary</a></li>
+            <li data-route="lights" tabindex="0" role="menuitem"><a href="#lights">Lighting</a></li>
+            <li data-route="status01" tabindex="0" role="menuitem"><a href="#status01">System Status</a></li>
+            <li data-route="wanted" tabindex="0" role="menuitem"><a href="#wanted">To Do List</a></li>
+        </ul>
+    </nav>
+</header>
 ```
 
+![screenshot of example menu](image-1.png)
+
+### Automating menus
+
+If you wish to automatically generate menus, you can use the `routeList()` method of the router. You can use this in JavaScript to generate appropriate lists.
+
+## Events
+
+These are the custom `document` events used by the router class. Listen for them using `document.addEventListener('eventname', callbackFn)`. The callback function may receive additional data as an argument where shown below.
+
+* `uibrouter:loaded` - When all internal and external routes have loaded.
+* `uibrouter:route-changed` - when a route change is successful. Details contain new and old route id's.
+* `uibrouter:route-change-failed` - when a route change fails and is rolled back. Details contain new and old route id's.
+* `uibrouter:routes-added` - When new routes added (via `router.addRoutes()`).
+
+Note that, when used with UIBUILDER, several managed uibuilder variables are also set - see the [section on UIBUILDER below](#using-with-uibuilder). These generate their own events that can be monitored via `uibuilder.onChange` (in JavaScript) or via `<uib-var variable="...."></uib-var>` (in HTML).
+
 ## Variables
 
 * `config` - A copy of the input configuration used to create the router.
 * `currentRouteId` - The route id of the currently showing route.
 * `previousRouteId` - The route if of the previously showing route.
 * `routeContainerEl` - A reference to the DOM (HTML) element containing the displayed route(s)
+* `routeIds` - An array of route IDs
 * `version` - The version of the router class being used
 
+Note that, when used with UIBUILDER, several managed uibuilder variables are also set - see the [section on UIBUILDER below](#using-with-uibuilder).
+
 ## Methods
 
 * `addRoutes(routeConfig)` - Add a single or an array of route config objects which adds new routes to the router.
   
   External routes will be loaded to template tags as per class startup. Note that external templates are loaded asynchronously. Check for the `uibrouter:routes-added` custom event to have fired or listen for the uibuilder `uibrouter` managed variable to be set to `routes added` to detect when all new external routes have been loaded.
 
+* `currentRoute()` - Returns the configuration data `{id, src, type, title, description}` of the current route as a JavaScript object.
 * `defaultRoute()` - Show the default route if it has been defined in the config.
 * `doRoute(routeSource)` - Manually show a specific route id.
 * `getRouteConfigById(routeId)` - Gets route configuration details for a given route id.
@@ -139,8 +190,11 @@ uibuilder.onChange('uibrouter', (eventname) => {
 * `keepHashFromUrl(url)` - Given a URL, extracts and returns a route id.
 * `loadExternal(routeDefinition)` - Loads an external route template given a valid route definition.
 * `noRoute()` - Removes/hides the current route leaving no route showing. NOTE that this will ***NOT*** trigger *route or hash change events*.
-
+* `removeHash()` - Removes the hash from the browser URL.
+* `routeDescription` - Returns the description of the current route or its ID if the `description` property not set.
 * `routeList(returnHash)` - Return an array of route id's. Useful for creating routing menu's. If the optional `returnHash` is set to true, returns id's prefixed with a `#` for direct use in `href` attributes.
+* `routeTitle` - Returns the title of the current route or its ID if the `title` property not set.
+* `setCurrentMenuItems()` - Updates any on-page menu's so that the currently selected route can be highlighted. Adds `class="currentRoute" aria-current="page"` to the current route item in the list and removes them from all other items. Assumes that you are using an HTML list where the list items are marked with `<li data-route="routeid"`. Wherever `routeid` matches the new current route, the above attributes are added.
 
 > [!NOTE]
 > Any class methods starting with `_` are for internal use only and must not be used in your own code.
@@ -153,10 +207,57 @@ TBC
 
 TBC
 
+### Notes
+
+* If using the router's "Clone" mode (default), remember that scripts in the template are _run every time the route is activated_. So make sure to put a gate test in the script if you want it to only run once.
+* You can reference elements added in the template from the script in the template (the addEventListener for example).
+* Because of the way that scripts from the external templates have to be applied, any code is global to the page. Bear that in mind as it is likely different to some frameworks. Similarly with styles.
+* A script defined in an external template is run EVERY time the route is loaded. Bear this in mind when adding things like uibuilder.onChange handlers, as these accumulate rather than replace.
+* In HTML, scripts are not really meant to be dynamically added/removed so use scripts embedded in external route files with caution.
+
+* Styles defined in the template are globally available. However, in "Clone" mode, they will not exist until the route as been activated at least once.
+* Remember that styles in external templates only exist while that route is loaded. While you can reference that style anywhere on page, it will only apply when the route is loaded. This could be used to get some interesting effects such as having page styles change outside the route display based on the current route (though it would require the route to be unloaded when not in use).
+
+
 ## Using with UIBUILDER
 
 While not dependent on UIBUILDER, the router class does work nicely with it.
 
+### Monitoring for route changes
+
+#### In front-end HTML
+
+As the router will generate managed variable updates (see below), you can use the `<uib-var>` component in your HTML. The content will automatically update as things change.
+
+```html
+Current route ID: <uib-var variable="uibrouter_CurrentRoute"></uib-var>.
+Route title: <uib-var variable="uibrouter_CurrentTitle"></uib-var>.
+Route description: <uib-var variable="uibrouter_CurrentDescription"></uib-var>.
+```
+
+Note that the title and description are optional properties, where not present, the route ID will be shown instead.
+
+#### In front-end JavaScript code
+
+You can either use the uibuilder managed variables and `uibuilder.onChange` or the custom events (see the [events](#events) section above) with a JavaScript event handler.
+
+```javascript
+// Assumes use of uibuilder and assumes `const router = new uibrouter(config)`
+uibuilder.onChange('uibrouter', (eventname) => {
+    if (eventname === 'route changed') {
+        // Uses 2 of the router variables - see below for the full list
+        console.log(`ROUTE CHANGED. New Route: ${router.currentRouteId}, Old Route: ${router.previousRouteId}`)
+    }
+})
+// OR
+uibuilder.onChange('uibrouter_CurrentRoute', (routeId) => {
+    console.log(`ROUTE CHANGED. New Route: ${routeId}`)
+})
+```
+
+
+#### In Node-RED
+
 The simplest way to report route changes back to Node-RED is to use uibuilder's `watchUrlHash()` function or monitor changes on the managed variable `urlHash`.
 
 The `watchUrlHash()` function will send a message back to Node-RED with the following format:
@@ -177,9 +278,21 @@ You will probably want the "Include msg._uib in standard msg output" flag turned
 
 This feature can be turned on in your front-end code with `uibuilder.watchUrlHash()` or from Node-RED by sending a uibuilder command message with `msg._ui` set to `{"command": "watchUrlHash"}` (which toggles the watch on/off). See [Control from Node-RED](client-docs/control-from-node-red#watchurlhash-watch-for-url-hash-changes) in the docs for more details.
 
-## Notes
+### Managed variables
+
+The router also sets some uibuilder managed variables:
+
+* `uibrouter`: Set to `loaded`, `route changed`, `route change failed`, or `routes added` at appropriate times.
+* `uibrouter_CurrentRoute`: The ID of the current route.
+* `uibrouter_CurrentTitle`: The route title. Will show the ID if the route's `title` property not set.
+* `uibrouter_CurrentDescription`: The route description. Will show the ID if the route's `description` property not set.
+* `uibrouter_CurrentDetails`: The route configuration object for the current route.
+
+Managed uibuilder variables can be monitored via `uibuilder.onChange` (in JavaScript) or via `<uib-var variable="...."></uib-var>` (in [HTML](#in-front-end-html)).
+
+
+## Other Notes
 
-* You can reference elements added in the template from the script in the template (the addEventListener for example).
 * Your routes can be a mix of external files and `<template>` tags.
 * An incorrect URL for an external template will give a console error but everything else will still work.
 * You can define a container that the output route goes into but if you don't give your own, one is added. 
@@ -187,11 +300,8 @@ This feature can be turned on in your front-end code with `uibuilder.watchUrlHas
 * Manually added templates can go anywhere in the HTML but I put them in the `<head>` out of the way. External templates are added to the end of the head.
 * The exact order of the templates in the HTML is not guaranteed because they are all loaded in parallel. This should not matter.
 * The external templates are ALL loaded into the page when the router is set up. This wouldn't normally cause any issues but if you had many dozens of really big templates, you might get some memory issues.
-* Remember that styles in external templates only exist while that route is loaded. While you can reference that style anywhere on page, it will only apply when the route is loaded. This could be used to get some interesting effects.
-* Because of the way that scripts from the external templates have to be applied, any code is global to the page. Bear that in mind as it is likely different to some frameworks. Similarly with styles.
 * A script defined in an external template is run EVERY time the route is loaded. Bear this in mind when adding things like `uibuilder.onChange` handlers, as these accumulate rather than replace.
 * Any change of route is entirely up to you. You can use a menu, "tabs" or anything else to control route changes. You can do them from code with `router.doRoute('routeid')` as well. You just need to ensure that the element that triggers the change has an href that matches a route. It is best and safest to always use `<a href="#routeid">` tags because they also trigger the browser's URL Hash change processing. UIBUILDER has functions for monitoring that should you need them, or you can add your own event listener.
-* In HTML, scripts are not really meant to be dynamically added/removed so use scripts embedded in external route files with caution.
 
 ## Example
 
@@ -218,7 +328,8 @@ const routerConfig = {
     //      must be unique on the page
     routes: [
         // Two <template> tags as routes
-        {id: 'route01', src: '#route01'},
+        { id: 'route01', src: '#route01',
+          title: 'Home', description: 'A summary view of the home.' },
         {id: 'route02', src: '#route02'},
         // File exists in sub-folder below index.js, is served by Node-RED/uibuilder
         {id: 'route03', src: './fe-routes/route03.html', type: 'url'},
diff --git a/docs/client-docs/functions.md b/docs/client-docs/functions.md
index 3eb5164b..47feb155 100644
--- a/docs/client-docs/functions.md
+++ b/docs/client-docs/functions.md
@@ -4,7 +4,7 @@ description: >
    Details about the functions/methods used in the UIBUILDER front-end client library.
    Some functions are available to your own custom code and some are hidden inside the `uibuilder` client object.
 created: 2023-01-28 15:56:57
-lastUpdated: 2023-12-10 15:02:22
+lastUpdated: 2023-12-29 17:26:05
 ---
 
 Functions accessible in client-side user code.
@@ -35,6 +35,25 @@ You can use one or more of the `msg._uib.pageName`, `msg._uib.clientId`, or `msg
 
 UIBUILDER also allows you to issue control commands from Node-RED to your front-end app by sending messages to the `uibuilder` node containing `msg._uib.command` which must be set to [one of the recognised commands](/client-docs/control-from-node-red).
 
+### Rooms
+
+Rooms are a Socket.IO server concept. For UIBUILDER, they are simulated on the client by using standard message titles. Their use allows flexible messaging from any uibuilder connected client or a custom uibuilder node to any other uibuilder connected client or custom uibuilder node.
+
+UIBUILDER clients are automatically subscribed to a number of rooms based on the client socket ID, page name and client ID. They are also subscribed to a "global" channel.
+
+See also [sendRoom](#sendRoom) for sending messages to an arbitrary room.
+
+#### `joinRoom(room)` - Join an arbitrary socket.io room to receive messages from it :id=joinRoom
+
+This simulates joining a specified room on the client side, uibuilder will start forwarding messages sent to the room to this client.
+
+> [!WARNING]
+> As yet, the client has no way of handling messages from the server in these rooms.
+
+#### `leaveRoom(room)` - Leave an arbitrary socket.io room to stop receiving messages from it :id=leaveRoom
+
+This simulates leaving a specified room on the client side, uibuilder will stop forwarding messages sent to the room to this client.
+
 ## Sending Messages to Node-RED
 
 ### `eventSend(domevent, originator = '')` - Send a standard message back to Node-RED in response to a DOM event :id=eventSend
@@ -91,6 +110,12 @@ The message will be assessed by UIBUILDER and passed to its #2 (bottom) output p
 
 This lets you create your own control custom messages should you wish to. Use with caution.
 
+### `sendRoom(room, msg)` - Send a message to an arbitrary socket.io room :id=sendRoom
+
+Socket.IO rooms are server-side concepts for partitioning messages. This simulates the feature on the client side.
+
+See also [joinRoom](#joinRoom) and [leaveRoom](#leaveRoom) for controlling receipt of room messages.
+
 ### `setOriginator(originator = '')` - Set/clear the default originator :id=setOriginator
 
 Will automatically be used by `send` and `eventSend`.
@@ -765,7 +790,9 @@ If examining the library code, please remember that functions starting with `_`
 * [`getWatchedVars`](#getWatchedVars)*
 * [`htmlSend`](#htmlSend)*
 * [`include`](#include)*
+* [`joinRoom(room)`](#joinRoom) - join an arbitrary socket.io room to receive messages from it
 * [`keepHashFromUrl`](#keepHashFromUrl)
+* [`leaveRoom(room)`](#leaveRoom) - leave an arbitrary socket.io room to stop receiving messages from it
 * [`loadScriptSrc`](#load)§
 * [`loadScriptTxt`](#load)§
 * [`loadStyleSrc`](#load)§
@@ -787,6 +814,7 @@ If examining the library code, please remember that functions starting with `_`
 * [`scrollTo`](#scrollTo)*
 * [`send`](#send)
 * [`sendCtrl`](#sendCtrl)
+* [`sendRoom(room, msg)`](#sendRoom) - Send a message to an arbitrary socket.io room
 * [`set`](#set)*
 * [`setOriginator`](#setOriginator)
 * [`setPing`](#setPing)
diff --git a/docs/client-docs/image-1.png b/docs/client-docs/image-1.png
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diff --git a/docs/client-docs/uib-brand-css.md b/docs/client-docs/uib-brand-css.md
index 385d07be..4c6632c3 100644
--- a/docs/client-docs/uib-brand-css.md
+++ b/docs/client-docs/uib-brand-css.md
@@ -37,6 +37,15 @@ Forms are bordered with a horizontal layout (labels on the same row as the input
 
 For screen widths below 600px, the labels are moved above the inputs.
 
+## Navigation menus
+
+Basic nav menu formatting is including via the `nav` tag. Including basic horizontal menu (`nav.horizontal` class) formatting. Assumes list embedded in a nav tag and that the list has correct aria roles set.
+
+## Lists
+
+* `.checklist` - designed to work with custom bullet lists using the following types or similar.
+* `li.check`/`li.completed`, `li.uncheck`/`li.unstarted`, `li.started` Use these bullets respectively: ✅, ❌, ✔️. Specifies `font-family: var(--emoji-fonts);`
+
 ## Tables
 
 * Tables are bordered (using collapsed borders). The colour for the table border is `--text3`. Inner borders use `--surface4`. The table has a top & bottom margin of 1rem.
@@ -223,9 +232,11 @@ Note that shadows are notoriously difficult to get right in dark modes. The defa
 
 ### Other
 
+* `--base-margin` (`1rem`) - Applies to `body`, `div > p` left & right margins. `img`, `picture`, `video`, `canvas`, `svg` all margins. `main` left & right padding. `.checklist` margin-inline start & end.
 * `--border-margin` (`0`) - Applies to `border` class only. How much `margin` to add to a bordered element.
 * `--border-pad` (`0.5rem`) - Applies to `border` class only. How much `padding` to add to a bordered element.
 * `--border-radius` (`0.5rem`) - Used for all styles that have rounded corners. (buttons, inputs, borders, etc.)
+* `--emoji-fonts` ("Twemoji Mozilla", "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji", "EmojiOne Color", "Android Emoji", sans-serif) - Use as `font-family: var(--emoji-fonts);` for better emoji's on different platforms.
 * `--font-family` (`sans-serif`) - Sans-serif is much easier to read on-screen, the actual font is left up to the browser/OS.
 * `--grid-fit-min` (`15rem`) - Used by the `.grid-fit` class to specify the minimum child component size. That defines when contents will wrap.
 * `--mode` - `light` or `dark` according to the current browser preference or html class override.

From 3bad9684007cd7ca717fa98aab175824dcdc1e97 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Sun, 31 Dec 2023 13:48:28 +0000
Subject: [PATCH 62/78] Set defaultRoute if not provided. Apply default route
 in doRoute if no route provided

---
 CHANGELOG.md                              | 22 ++++++++++++++++------
 front-end/utils/uibrouter.esm.js          |  4 ++++
 front-end/utils/uibrouter.esm.min.js      |  4 ++--
 front-end/utils/uibrouter.esm.min.js.map  |  4 ++--
 front-end/utils/uibrouter.iife.js         |  4 ++++
 front-end/utils/uibrouter.iife.min.js     |  4 ++--
 front-end/utils/uibrouter.iife.min.js.map |  4 ++--
 src/front-end-module/uibrouter.js         |  4 ++++
 8 files changed, 36 insertions(+), 14 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 224dfae8..60d83621 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,7 +8,6 @@ Please see the documentation for archived changelogs - a new archive is produced
 
 ## To Fix
 
-* uib router - if no routerConfig.defaultRoute set, use the first (zeroth) defined route.
 * `uib-save` import - initial deployment does not connect to node - need to clear the entry & mark as invalid. Also, no url = invalid
 
 * To reproduce: [ref](https://discourse.nodered.org/t/uibuilder-new-release-v6-7-new-front-end-router-improvements-to-uib-html-uib-save-and-more/83106/4)
@@ -22,7 +21,7 @@ Please see the documentation for archived changelogs - a new archive is produced
   The editor complains that the node still isn't configured correctly. Deploy anyway.
   Second observation: The uibuilder node still shows the red triangle - which is definitely unexpected now. Node status displays "Node Initialised" @ blue.
 
-* Looks like it's validateVersion that triggers this red triangle.. [ref](https://discourse.nodered.org/t/uibuilder-new-release-v6-7-new-front-end-router-improvements-to-uib-html-uib-save-and-more/83106/7?u=totallyinformation)
+  Looks like it's validateVersion that triggers this red triangle.. [ref](https://discourse.nodered.org/t/uibuilder-new-release-v6-7-new-front-end-router-improvements-to-uib-html-uib-save-and-more/83106/7?u=totallyinformation)
 
 ## To Do
 
@@ -32,8 +31,8 @@ Please see the documentation for archived changelogs - a new archive is produced
   * Add client msg filter for URL Hash.
 
 * Examples
-  * update the `remote-commands` example
-  * Add/update the `text updates` example
+  * update the remote-commands example
+  * Add a "FE Router Test" example
   * Add new low-code example
   * Add example save current page to file
 
@@ -61,7 +60,6 @@ Docs
     * [ ] Document new managed var: `globalMsg`.
 
 * uib-router
-  * [ ] if no routerConfig.defaultRoute set, use the first (zeroth) defined route.
   * add `rotate` method to auto-rotate through routes. Needs ms and stop/start args.
   * Add 1st show marker to route change to allow client to ask for cache update
   * Update example
@@ -109,7 +107,10 @@ Docs
 
 ### 📌 Highlights
 
-* The `uibrouter` library gets some serious updates in this version. Including automatic menu updates (to highlight the current route) and new uibuilder variables to use with `<uib-var>` to show titles and descriptions that update automatically.
+* The `uibrouter` library gets some serious updates in this version. Including:
+
+  * Automatic menu updates (to highlight the current route) and new uibuilder variables to use with `<uib-var>` to show titles and descriptions that update automatically.
+  * A fix for a missing default route - the first defined route is used in this case.
 
 * The `<uib-var>` HTML component gets
 
@@ -128,6 +129,8 @@ Docs
   * New UI functions `addClass(classNames, el)` and `removeClass(classNames, el)` to make class handling easier.
   * New `connect()` and `disconnect()` functions to manually connect/disconnect the Socket.IO connections.
 
+* The importable example flows have been re-organised for easier access. Some new examples added: "Text Update - Different Methods", "FE Router Test"
+
 * No-code and low-code features now all allow more flexible class handling (add, remove, and replace using lists). HTML element data outputs also now return an array of class names, not just a combined string.
 * Front-end commands issued from Node-RED can now take a `quiet` option set to `true` to prevent the return message. e.g. `{"_uib": {"command":"navigate","prop":"#newroute","quiet":true}}`
 * Front-end developers now have full access to the `ui.js` library via the `$ui` global.
@@ -194,6 +197,7 @@ Docs
 ### `uibrouter` library
 
 * **FIXED** [Issue #232](https://github.com/TotallyInformation/node-red-contrib-uibuilder/issues/232) - Ensure origin script is removed after re-applying to ensure only 1 instance shows instead of 2.
+* **FIXED** - If no routerConfig.defaultRoute set, now uses the first (zeroth) defined route.
 * Version bumped to v1.0.1
 * **NEW** uibuilder managed variables added to make it easier to use with `<uib-var>`. [`uibrouter_CurrentRoute`, `uibrouter_CurrentTitle`, `uibrouter_CurrentDescription`, `uibrouter_CurrentDetails`]. These are automatically updated whenever a route change occurs.
 * **NEW Functions** - `routeTitle`, `routeDescription` - return the current route's title and description properties if set or the ID if not.
@@ -225,11 +229,17 @@ Docs
 * Added `ui.checklist` with `--base-margin` left/right margins and a little more space for the check bullets.
 * Added basic nav menu formatting using `nav` tag. Including basic horizontal menu (`nav.horizontal` class) formatting. Assumes list embedded in a nav tag and that the list has correct aria roles set.
 
+### Examples (import flows from Node-RED library)
+
+* Re-organised & renamed examples now there are more of them.
+* **NEW** - "Text Update - Different Methods" example
+
 ### Documentation
 
 * Heading levels 3+ have been made lighter to better differentiate them visually.
 * The front-end client functions page now has an alphabetical list of functions.
 * Improved low-code documentation for the `notify` and `alert` methods.
+* Restructured config files for better future updates. Fixed some niggles.
 
 ## Other
 
diff --git a/front-end/utils/uibrouter.esm.js b/front-end/utils/uibrouter.esm.js
index 59a44bcb..cdba8ed1 100644
--- a/front-end/utils/uibrouter.esm.js
+++ b/front-end/utils/uibrouter.esm.js
@@ -53,6 +53,8 @@ var UibRouter = class {
     if (!routerConfig2.routeContainer)
       routerConfig2.routeContainer = "#uibroutecontainer";
     this.config = routerConfig2;
+    if (!this.config.defaultRoute && this.config.routes[0] && this.config.routes[0].id)
+      this.config.defaultRoute = this.config.routes[0].id;
     this._setRouteContainer();
     this._updateRouteIds();
     Promise.all(Object.values(routerConfig2.routes).filter((r) => r.type && r.type === "url").map(this._loadExternal)).then(this._appendExternalTemplates).then(() => {
@@ -175,6 +177,8 @@ var UibRouter = class {
    * @param {PointerEvent|MouseEvent|HashChangeEvent|TouchEvent|string} routeSource Either string containing route id or DOM Event object either click/touch on element containing `href="#routeid"` or Hash URL change event
    */
   doRoute(routeSource) {
+    if (!routeSource)
+      routeSource = this.config.defaultRoute;
     const container = this.routeContainerEl;
     if (!container)
       throw new Error("[uibrouter:doRoute] Cannot route, has router.setup() been called yet?");
diff --git a/front-end/utils/uibrouter.esm.min.js b/front-end/utils/uibrouter.esm.min.js
index d84cf39b..8943385d 100644
--- a/front-end/utils/uibrouter.esm.min.js
+++ b/front-end/utils/uibrouter.esm.min.js
@@ -1,3 +1,3 @@
-var b=Object.defineProperty;var R=(i,e,t)=>e in i?b(i,e,{enumerable:!0,configurable:!0,writable:!0,value:t}):i[e]=t;var n=(i,e,t)=>(R(i,typeof e!="symbol"?e+"":e,t),t),h=(i,e,t)=>{if(!e.has(i))throw TypeError("Cannot "+t)};var p=(i,e,t)=>(h(i,e,"read from private field"),t?t.call(i):e.get(i)),f=(i,e,t)=>{if(e.has(i))throw TypeError("Cannot add the same private member more than once");e instanceof WeakSet?e.add(i):e.set(i,t)},m=(i,e,t,r)=>(h(i,e,"write to private field"),r?r.call(i,t):e.set(i,t),t);var d,a=class{constructor(e){n(this,"config");n(this,"routeContainerEl");n(this,"currentRouteId");n(this,"previousRouteId");n(this,"routeIds",[]);f(this,d,!1);if(!fetch)throw new Error("[uibrouter:constructor] UibRouter requires `fetch`. Please use a current browser or load a fetch polyfill.");if(!e)throw new Error("[uibrouter:constructor] No config provided");if(!e.routes)throw new Error("[uibrouter:constructor] No routes provided in routerConfig");e.routeContainer||(e.routeContainer="#uibroutecontainer"),this.config=e,this._setRouteContainer(),this._updateRouteIds(),Promise.all(Object.values(e.routes).filter(t=>t.type&&t.type==="url").map(this._loadExternal)).then(this._appendExternalTemplates).then(()=>{this._start()})}_setRouteContainer(){let e=document.getElementsByTagName("body")[0],t=this.routeContainerEl=document.querySelector(this.config.routeContainer);if(!t){let r=document.createElement("div");r.setAttribute("id",this.config.routeContainer.replace("#","")),e.append(r),t=this.routeContainerEl=document.querySelector(this.config.routeContainer)}}_appendExternalTemplates(e){let t=document.getElementsByTagName("head")[0];e.forEach(r=>{Array.isArray(r)?console.error(...r):t.append(r)})}_start(){p(this,d)!==!0&&(window.addEventListener("hashchange",e=>this._hashChange(e)),this.doRoute(),document.dispatchEvent(new CustomEvent("uibrouter:loaded")),uibuilder&&uibuilder.set("uibrouter","loaded"),m(this,d,!0))}_hashChange(e){this.doRoute(e)}_createRouteContent(e){let t=document.querySelector(`#${e}`);if(!t)return console.error(`[uibrouter:createRouteContent] No route template found for route selector '#${e}'. Does the link url match a defined route id?`),!1;let r=t.content.cloneNode(!0);this.isRouteExternal(e)&&this._applyScripts(r);let o=document.createElement("div");o.dataset.route=e,o.append(r);try{this.routeContainerEl.append(o)}catch(u){return console.error(`[uibrouter:createRouteContent] Failed to apply route id '${e}'. 
- ${u.message}`),!1}return!0}_loadExternal(e){let t=e.id;return fetch(e.src).then(r=>r.ok===!1?[e.id,e.src,r.status,r.statusText]:r.text()).then(r=>{if(Array.isArray(r))return r;try{let u=document.querySelector(`#${t}`);u&&u.remove()}catch{}let o=document.createElement("template");return o.innerHTML=r,o.setAttribute("id",t),o}).catch(r=>{console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${e.src}:`,r)})}_applyScripts(e){e.querySelectorAll("script").forEach(r=>{let o=document.createElement("script");o.textContent=r.innerText,e.append(o),r.remove()})}_updateRouteIds(){this.routeIds=new Set(Object.values(routerConfig.routes).map(e=>e.id))}doRoute(e){let t=this.routeContainerEl;if(!t)throw new Error("[uibrouter:doRoute] Cannot route, has router.setup() been called yet?");let r=this.keepHashFromUrl(window.location.hash);e||(e=r);let o,u;if(typeof e=="string"){if(o=this.keepHashFromUrl(e),u=r,o===""&&this.config.defaultRoute&&(o=this.config.defaultRoute),o!==r){window.location.hash=`#${o}`;return}}else if(e.type==="hashchange"){let s=e.newURL;if(s.includes("#"))u=this.keepHashFromUrl(e.oldURL),o=this.keepHashFromUrl(s);else return}else{u=r;try{o=this.keepHashFromUrl(e.target.attributes.href.value)}catch{throw new Error("[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute")}}let l=!1;if(!o||!this.routeIds.has(o))throw document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:u}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=u?`#${u}`:"",new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${o}'`);if(this.config.hide){if(u){let c=document.querySelector(`div[data-route="${u}"]`);c&&(c.style.display="none")}let s=document.querySelector(`div[data-route="${o}"]`);s?(s.style.removeProperty("display"),l=!0):l=this._createRouteContent(o)}else t.replaceChildren(),l=this._createRouteContent(o);if(l===!1){document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:u}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=u?`#${u}`:"";return}this.currentRouteId=o,this.previousRouteId=u,t.dataset.currentRoute=o,this.setCurrentMenuItems(),document.dispatchEvent(new CustomEvent("uibrouter:route-changed",{detail:{newRouteId:o,oldRouteId:u}})),uibuilder&&(uibuilder.set("uibrouter","route changed"),uibuilder.set("uibrouter_CurrentRoute",o),uibuilder.set("uibrouter_CurrentTitle",this.routeTitle()),uibuilder.set("uibrouter_CurrentDescription",this.routeDescription()),uibuilder.set("uibrouter_CurrentDetails",this.getRouteConfigById(o)))}getRouteConfigById(e){return Object.values(this.config.routes).filter(t=>t.id===e)[0]}isRouteExternal(e){let t=this.getRouteConfigById(e);return!!(t&&t.type==="url")}defaultRoute(){this.config.defaultRoute&&this.doRoute(this.config.defaultRoute)}removeHash(){history.pushState("",document.title,window.location.pathname+window.location.search)}noRoute(){this.removeHash(),this.routeContainerEl.replaceChildren()}keepHashFromUrl(e){return e?e.replace(/^.*#(.*)/,"$1").replace(/\?.*$/,""):""}routeList(e){return e===!0?this.routeIds.map(t=>e===!0?`#${t.id}`:t.id):this.routeIds}addRoutes(e){Array.isArray(e)||(e=[e]),Promise.all(Object.values(e).filter(t=>t.type&&t.type==="url").map(this._loadExternal)).then(this._appendExternalTemplates).then(()=>{this.config.routes.push(...e),this._updateRouteIds(),document.dispatchEvent(new CustomEvent("uibrouter:routes-added",{detail:e})),uibuilder&&uibuilder.set("uibrouter","routes added")})}setCurrentMenuItems(){document.querySelectorAll("li[data-route]").forEach(t=>{t.dataset.route===this.currentRouteId?(t.classList.add("currentRoute"),t.setAttribute("aria-current","page")):(t.classList.remove("currentRoute"),t.removeAttribute("aria-current"))})}routeTitle(){let e=this.currentRoute()||{};return e.title||e.id||"[ROUTE NOT FOUND]"}routeDescription(){let e=this.currentRoute()||{};return e.description||e.id||"[ROUTE NOT FOUND]"}currentRoute(){return this.getRouteConfigById(this.currentRouteId)}};d=new WeakMap,n(a,"version","1.0.1");var w=a;window.UibRouter?console.warn("`UibRouter` already assigned to window. Have you tried to load it more than once?"):window.UibRouter=a;export{a as UibRouter,w as default};
+var R=Object.defineProperty;var b=(i,e,t)=>e in i?R(i,e,{enumerable:!0,configurable:!0,writable:!0,value:t}):i[e]=t;var n=(i,e,t)=>(b(i,typeof e!="symbol"?e+"":e,t),t),h=(i,e,t)=>{if(!e.has(i))throw TypeError("Cannot "+t)};var f=(i,e,t)=>(h(i,e,"read from private field"),t?t.call(i):e.get(i)),p=(i,e,t)=>{if(e.has(i))throw TypeError("Cannot add the same private member more than once");e instanceof WeakSet?e.add(i):e.set(i,t)},m=(i,e,t,r)=>(h(i,e,"write to private field"),r?r.call(i,t):e.set(i,t),t);var d,a=class{constructor(e){n(this,"config");n(this,"routeContainerEl");n(this,"currentRouteId");n(this,"previousRouteId");n(this,"routeIds",[]);p(this,d,!1);if(!fetch)throw new Error("[uibrouter:constructor] UibRouter requires `fetch`. Please use a current browser or load a fetch polyfill.");if(!e)throw new Error("[uibrouter:constructor] No config provided");if(!e.routes)throw new Error("[uibrouter:constructor] No routes provided in routerConfig");e.routeContainer||(e.routeContainer="#uibroutecontainer"),this.config=e,!this.config.defaultRoute&&this.config.routes[0]&&this.config.routes[0].id&&(this.config.defaultRoute=this.config.routes[0].id),this._setRouteContainer(),this._updateRouteIds(),Promise.all(Object.values(e.routes).filter(t=>t.type&&t.type==="url").map(this._loadExternal)).then(this._appendExternalTemplates).then(()=>{this._start()})}_setRouteContainer(){let e=document.getElementsByTagName("body")[0],t=this.routeContainerEl=document.querySelector(this.config.routeContainer);if(!t){let r=document.createElement("div");r.setAttribute("id",this.config.routeContainer.replace("#","")),e.append(r),t=this.routeContainerEl=document.querySelector(this.config.routeContainer)}}_appendExternalTemplates(e){let t=document.getElementsByTagName("head")[0];e.forEach(r=>{Array.isArray(r)?console.error(...r):t.append(r)})}_start(){f(this,d)!==!0&&(window.addEventListener("hashchange",e=>this._hashChange(e)),this.doRoute(),document.dispatchEvent(new CustomEvent("uibrouter:loaded")),uibuilder&&uibuilder.set("uibrouter","loaded"),m(this,d,!0))}_hashChange(e){this.doRoute(e)}_createRouteContent(e){let t=document.querySelector(`#${e}`);if(!t)return console.error(`[uibrouter:createRouteContent] No route template found for route selector '#${e}'. Does the link url match a defined route id?`),!1;let r=t.content.cloneNode(!0);this.isRouteExternal(e)&&this._applyScripts(r);let o=document.createElement("div");o.dataset.route=e,o.append(r);try{this.routeContainerEl.append(o)}catch(u){return console.error(`[uibrouter:createRouteContent] Failed to apply route id '${e}'. 
+ ${u.message}`),!1}return!0}_loadExternal(e){let t=e.id;return fetch(e.src).then(r=>r.ok===!1?[e.id,e.src,r.status,r.statusText]:r.text()).then(r=>{if(Array.isArray(r))return r;try{let u=document.querySelector(`#${t}`);u&&u.remove()}catch{}let o=document.createElement("template");return o.innerHTML=r,o.setAttribute("id",t),o}).catch(r=>{console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${e.src}:`,r)})}_applyScripts(e){e.querySelectorAll("script").forEach(r=>{let o=document.createElement("script");o.textContent=r.innerText,e.append(o),r.remove()})}_updateRouteIds(){this.routeIds=new Set(Object.values(routerConfig.routes).map(e=>e.id))}doRoute(e){e||(e=this.config.defaultRoute);let t=this.routeContainerEl;if(!t)throw new Error("[uibrouter:doRoute] Cannot route, has router.setup() been called yet?");let r=this.keepHashFromUrl(window.location.hash);e||(e=r);let o,u;if(typeof e=="string"){if(o=this.keepHashFromUrl(e),u=r,o===""&&this.config.defaultRoute&&(o=this.config.defaultRoute),o!==r){window.location.hash=`#${o}`;return}}else if(e.type==="hashchange"){let s=e.newURL;if(s.includes("#"))u=this.keepHashFromUrl(e.oldURL),o=this.keepHashFromUrl(s);else return}else{u=r;try{o=this.keepHashFromUrl(e.target.attributes.href.value)}catch{throw new Error("[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute")}}let l=!1;if(!o||!this.routeIds.has(o))throw document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:u}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=u?`#${u}`:"",new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${o}'`);if(this.config.hide){if(u){let c=document.querySelector(`div[data-route="${u}"]`);c&&(c.style.display="none")}let s=document.querySelector(`div[data-route="${o}"]`);s?(s.style.removeProperty("display"),l=!0):l=this._createRouteContent(o)}else t.replaceChildren(),l=this._createRouteContent(o);if(l===!1){document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:u}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=u?`#${u}`:"";return}this.currentRouteId=o,this.previousRouteId=u,t.dataset.currentRoute=o,this.setCurrentMenuItems(),document.dispatchEvent(new CustomEvent("uibrouter:route-changed",{detail:{newRouteId:o,oldRouteId:u}})),uibuilder&&(uibuilder.set("uibrouter","route changed"),uibuilder.set("uibrouter_CurrentRoute",o),uibuilder.set("uibrouter_CurrentTitle",this.routeTitle()),uibuilder.set("uibrouter_CurrentDescription",this.routeDescription()),uibuilder.set("uibrouter_CurrentDetails",this.getRouteConfigById(o)))}getRouteConfigById(e){return Object.values(this.config.routes).filter(t=>t.id===e)[0]}isRouteExternal(e){let t=this.getRouteConfigById(e);return!!(t&&t.type==="url")}defaultRoute(){this.config.defaultRoute&&this.doRoute(this.config.defaultRoute)}removeHash(){history.pushState("",document.title,window.location.pathname+window.location.search)}noRoute(){this.removeHash(),this.routeContainerEl.replaceChildren()}keepHashFromUrl(e){return e?e.replace(/^.*#(.*)/,"$1").replace(/\?.*$/,""):""}routeList(e){return e===!0?this.routeIds.map(t=>e===!0?`#${t.id}`:t.id):this.routeIds}addRoutes(e){Array.isArray(e)||(e=[e]),Promise.all(Object.values(e).filter(t=>t.type&&t.type==="url").map(this._loadExternal)).then(this._appendExternalTemplates).then(()=>{this.config.routes.push(...e),this._updateRouteIds(),document.dispatchEvent(new CustomEvent("uibrouter:routes-added",{detail:e})),uibuilder&&uibuilder.set("uibrouter","routes added")})}setCurrentMenuItems(){document.querySelectorAll("li[data-route]").forEach(t=>{t.dataset.route===this.currentRouteId?(t.classList.add("currentRoute"),t.setAttribute("aria-current","page")):(t.classList.remove("currentRoute"),t.removeAttribute("aria-current"))})}routeTitle(){let e=this.currentRoute()||{};return e.title||e.id||"[ROUTE NOT FOUND]"}routeDescription(){let e=this.currentRoute()||{};return e.description||e.id||"[ROUTE NOT FOUND]"}currentRoute(){return this.getRouteConfigById(this.currentRouteId)}};d=new WeakMap,n(a,"version","1.0.1");var E=a;window.UibRouter?console.warn("`UibRouter` already assigned to window. Have you tried to load it more than once?"):window.UibRouter=a;export{a as UibRouter,E as default};
 //# sourceMappingURL=uibrouter.esm.min.js.map
diff --git a/front-end/utils/uibrouter.esm.min.js.map b/front-end/utils/uibrouter.esm.min.js.map
index 2810d223..3eb48fbb 100644
--- a/front-end/utils/uibrouter.esm.min.js.map
+++ b/front-end/utils/uibrouter.esm.min.js.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
   "sources": ["src/front-end-module/uibrouter.js"],
-  "sourcesContent": ["/* eslint-disable no-undef */\n// @ts-nocheck\n/** A simple, vanilla JavaScript front-end router class\n * Included in node-red-contrib-uibuilder but is not dependent on it.\n * May be used in other contexts as desired.\n * \n * Copyright (c) 2023-2023 Julian Knight (Totally Information)\n * https://it.knightnet.org.uk\n *\n * Licensed under the Apache License, Version 2.0 (the 'License');\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an 'AS IS' BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/** Type definitions\n * routeDefinition\n * @typedef {object} routeDefinition Single route configuration\n * @property {string} id REQUIRED. Route ID\n * @property {string} src REQUIRED. CSS Selector for template tag routes, url for external routes\n * @property {\"url\"|undefined} [type] OPTIONAL. \"url\" for external routes\n * @property {string} [title] OPTIONAL. Text to use as a short title for the route\n * @property {string} [description] OPTIONAL. Text to use as a long description for the route\n * UibRouterConfig\n * @typedef {object} UibRouterConfig Configuration for the UiBRouter class instances\n * @property {routeDefinition[]} routes REQUIRED. Array of route definitions\n * @property {string} [defaultRoute] OPTIONAL. If set to a route id, that route will be automatically shown on load\n * @property {string} [routeContainer] OPTIONAL. CSS Selector for an HTML Element containing routes\n * @property {boolean} [hide] OPTIONAL. If TRUE, routes will be hidden/shown on change instead of removed/added\n * @property {boolean} [unload] OPTIONAL. If TRUE, route templates will be unloaded from DOM after access. Only useful with the `hide` option\n */\n\nclass UibRouter { // eslint-disable-line no-unused-vars\n    //#region --- Variables ---\n    /** Class version */\n    static version = '1.0.1'\n\n    /** Configuration settings @type {UibRouterConfig} */\n    config\n    /** Reference to the container DOM element - set in setup() @type {HTMLDivElement} */\n    routeContainerEl\n    /** The current route id after doRoute() has been called */\n    currentRouteId\n    /** The previous route id after doRoute() has been called */\n    previousRouteId\n    /** Array of route ID's (created in constructor) */\n    routeIds = []\n\n    /** Internal only. Set to true when the _start() method has been called */\n    #startDone = false\n    //#endregion --- ----- ---\n\n    //#region --- Internal Methods ---\n    /** Class constructor\n     * @param {UibRouterConfig} routerConfig Configuration object\n     */\n    constructor(routerConfig) {\n        // Fetch is on desktop browsers since 2017 at latest. Not so much on mobile (Android!)\n        // May need a polyfill on mobile or old browsers.\n        if (!fetch) throw new Error('[uibrouter:constructor] UibRouter requires `fetch`. Please use a current browser or load a fetch polyfill.')\n\n        if (!routerConfig) throw new Error('[uibrouter:constructor] No config provided')\n        if (!routerConfig.routes) throw new Error('[uibrouter:constructor] No routes provided in routerConfig')\n        // Add a default route container uf needed\n        if (!routerConfig.routeContainer)routerConfig.routeContainer = '#uibroutecontainer'\n\n        // Save the config\n        this.config = routerConfig\n        // Create/access the route container element, sets this.routeContainerEl\n        this._setRouteContainer()\n\n        this._updateRouteIds()\n\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routerConfig.routes).filter(r => r.type && r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded so we can start\n                this._start()\n            } )\n    }\n\n    /** Save a reference to, and create if necessary, the HTML element to hold routes */\n    _setRouteContainer() {\n        const body = document.getElementsByTagName('body')[0]\n        // Get reference to route container or create it\n        let routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        if (!routeContainerEl) {\n            // throw new Error(`Route container element with CSS selector '${routerConfig.routeContainer}' not found in HTML`)\n            const tempContainer = document.createElement('div')\n            tempContainer.setAttribute('id', this.config.routeContainer.replace('#', ''))\n            body.append(tempContainer)\n            routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        }\n    }\n\n    /** Load fetched external elements to templates tags under the head tag\n     * @param {HTMLElement[]} loadedElements Array of loaded external elements to add as templates to the head tag\n     */\n    _appendExternalTemplates(loadedElements) {\n        const head = document.getElementsByTagName('head')[0]\n        // Append the loaded content to the main container\n        loadedElements.forEach(element => {\n            if (Array.isArray(element)) {\n                console.error(...element)\n            } else {\n                head.append(element)\n            }\n        })\n    }\n\n    /** Called once all external templates have been loaded */\n    _start() {\n        if (this.#startDone === true) return // Don't run this again\n\n        // Listen for url hash changes and process route change\n        window.addEventListener('hashchange', (event) => this._hashChange(event) )\n        // Go to default route if no route in url and if a default is defined or ensure current route is shown\n        this.doRoute()\n        // Events on fully loaded ...\n        document.dispatchEvent(new CustomEvent('uibrouter:loaded'))\n        if (uibuilder) uibuilder.set('uibrouter', 'loaded') // eslint-disable-line no-undef\n\n        this.#startDone = true // Don't run this again\n    }\n\n    /** Called when the URL Hash changes\n     * @param {HashChangeEvent} event URL Hash change event object\n     */\n    _hashChange(event) {\n        // console.log(`[uibrouter] hashchange: ${this.keepHashFromUrl(event.oldURL)} => ${this.keepHashFromUrl(event.newURL)}` )\n        this.doRoute(event)\n    }\n\n    /** Create DOM route content from a route template (internal or external)\n     * Route templates have to be a `<template>` tag with an ID that matches the route id.\n     * @param {string} routeId ID of the route definition to use to create the content\n     * @returns {boolean} True if the route content was created successfully, false otherwise\n     */\n    _createRouteContent(routeId) {\n        const rContent = document.querySelector(`#${routeId}`)\n        if (!rContent) {\n            console.error(`[uibrouter:createRouteContent] No route template found for route selector '#${routeId}'. Does the link url match a defined route id?`)\n            return false\n        }\n        const docFrag = rContent.content.cloneNode(true)\n        // Have to re-apply the scripts to make them run - only for external templates\n        if (this.isRouteExternal(routeId)) this._applyScripts(docFrag)\n        // Create the route wrapper div with data-route attrib\n        const tempContainer = document.createElement('div')\n        tempContainer.dataset.route = routeId\n        tempContainer.append(docFrag)\n        // And finally try to append to the container\n        try {\n            this.routeContainerEl.append(tempContainer)\n        } catch (e) {\n            console.error(`[uibrouter:createRouteContent] Failed to apply route id '${routeId}'. \\n ${e.message}`)\n            return false\n        }\n        return true\n    }\n\n    /** Loads an external HTML file into a `<template>` tag, adding the router id as the template id.\n     *  or returns an error array\n     * @param {routeDefinition} routeDefinition Configuration for a single route\n     * @returns {Promise<HTMLTemplateElement[]|[string,string,number,string]>} A promise that fulfills to an HTMLTemplateElement or an array containing error information\n     */\n    _loadExternal(routeDefinition) {\n        // const id = singleConfig.src.split('/').pop().replace('.html','')\n        const id = routeDefinition.id\n        // @ts-ignore\n        return fetch(routeDefinition.src)\n            .then(response => {\n                // Fetch failed?\n                if (response.ok === false) return [routeDefinition.id, routeDefinition.src, response.status, response.statusText]\n                return response.text()\n            })\n            .then((/** @type {string} */ htmlText) => {\n                if (Array.isArray(htmlText)) return htmlText // if the fetch failed\n\n                // Check to see if template already exists, if so, remove it\n                try {\n                    const chkTemplate = document.querySelector(`#${id}`)\n                    if (chkTemplate) chkTemplate.remove()\n                } catch (e) {}\n\n                const tempContainer = document.createElement('template')\n                tempContainer.innerHTML = htmlText\n                tempContainer.setAttribute('id', id)\n                return tempContainer\n            })\n            .catch(error => {\n                console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${routeDefinition.src}:`, error)\n            })\n    }\n\n    /** Remove/re-apply scripts in a container Element so that they are executed.\n     * @param {HTMLElement} tempContainer HTML Element of container to process\n     */\n    _applyScripts(tempContainer) {\n        const scripts = tempContainer.querySelectorAll('script')\n        scripts.forEach( scr => {\n            const newScript = document.createElement('script')\n            newScript.textContent = scr.innerText\n            tempContainer.append(newScript)\n            scr.remove() // remove the origin\n        })\n    }\n\n    /** Update this.routeIds array from this.config (on start and after add/remove routes) */\n    _updateRouteIds() {\n        this.routeIds = new Set(Object.values(routerConfig.routes).map( r => r.id ))\n    }\n    //#endregion --- ----- --\n\n    /** Process a routing request\n     * @param {PointerEvent|MouseEvent|HashChangeEvent|TouchEvent|string} routeSource Either string containing route id or DOM Event object either click/touch on element containing `href=\"#routeid\"` or Hash URL change event\n     */\n    doRoute(routeSource) {\n        const container = this.routeContainerEl\n        if (!container) throw new Error('[uibrouter:doRoute] Cannot route, has router.setup() been called yet?')\n\n        // Remove all the url and query param text and any leading # - returns '' if no current hash\n        const currentHash = this.keepHashFromUrl(window.location.hash)\n\n        // If no route source provided, take the current hash (which might be '' and that will trigger the default route if defined)\n        if (!routeSource) routeSource = currentHash\n\n        let newRouteId, oldRouteId\n\n        // Define new and old routes depending on different call types\n        if (typeof routeSource === 'string') { // Manually provided route id\n            // console.log(`[uibrouter:doRoute] manual: ${currentHash} => ${this.keepHashFromUrl(routeSource)}. Current: ${currentHash}` )\n            newRouteId = this.keepHashFromUrl(routeSource)\n            oldRouteId = currentHash\n            // If no hash & config has default, set the default as new\n            if (newRouteId === '' && this.config.defaultRoute) newRouteId = this.config.defaultRoute\n            // If the new route id not the same as the current one in the url hash, just change the current hash & exit\n            if (newRouteId !== currentHash ) {\n                window.location.hash = `#${newRouteId}`\n                return\n            }\n        } else if (routeSource.type === 'hashchange') { // A URL Hash change event\n            // console.log(`[uibrouter:doRoute] hashchange: ${this.keepHashFromUrl(routeSource.oldURL)} => ${this.keepHashFromUrl(routeSource.newURL)}. Current: ${currentHash}` )\n            const newUrl = routeSource.newURL\n            // Check if URL actually contains a #\n            if (newUrl.includes('#')) {\n                oldRouteId = this.keepHashFromUrl(routeSource.oldURL)\n                newRouteId = this.keepHashFromUrl(newUrl) // Only keep anything after the # & ignoring query params\n            } else return\n        } else { // A mouse click/touch event on a dom element with an href attribute\n            oldRouteId = currentHash\n            // Try to get the route name from the URL hash\n            try {\n                newRouteId = this.keepHashFromUrl(routeSource.target.attributes.href.value) // Only keep anything after the # & ignoring query params\n            } catch (e) {\n                throw new Error('[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute')\n            }\n        }\n\n        let routeShown = false\n\n        // If no defined valid route, undo and throw error\n        if (!newRouteId || !this.routeIds.has(newRouteId)) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            throw new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${newRouteId}'`)\n        }\n\n        // Show the new container (replace or show)\n        if (this.config.hide) {\n            // config.hide = true so hide previous contents\n            if (oldRouteId) {\n                /** @type {HTMLElement|null} */\n                const oldContent = document.querySelector(`div[data-route=\"${oldRouteId}\"]`)\n                if (oldContent) oldContent.style.display = 'none'\n            }\n            /** and unhide new route if possible @type {HTMLElement|null} */\n            const content = document.querySelector(`div[data-route=\"${newRouteId}\"]`)\n            if (content) {\n                content.style.removeProperty('display')\n                routeShown = true\n            } else {\n                // else create new content from template\n                routeShown = this._createRouteContent(newRouteId)\n            }\n        } else {\n            // config.hide != true so remove previous contents\n            container.replaceChildren()\n            // Create new content from template\n            routeShown = this._createRouteContent(newRouteId)\n        }\n\n        // console.log({ newRouteId, oldRouteId, currentHash, routeShown })\n\n        // Roll back the route change if the new route cannot be shown\n        if (routeShown === false) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            return\n        }\n\n        // Retain current and previous route id's\n        this.currentRouteId = newRouteId\n        this.previousRouteId = oldRouteId\n\n        // Record the current route on the route container\n        container.dataset.currentRoute = newRouteId\n\n        // Update any existing HTML menu items\n        this.setCurrentMenuItems()\n\n        // Events on route changed ...\n        document.dispatchEvent(new CustomEvent('uibrouter:route-changed', { detail: { newRouteId, oldRouteId } }))\n        if (uibuilder) {\n            uibuilder.set('uibrouter', 'route changed')\n            uibuilder.set('uibrouter_CurrentRoute', newRouteId)\n            uibuilder.set('uibrouter_CurrentTitle', this.routeTitle())\n            uibuilder.set('uibrouter_CurrentDescription', this.routeDescription())\n            uibuilder.set('uibrouter_CurrentDetails', this.getRouteConfigById(newRouteId))\n        }\n    }\n\n    /** Return a route config given a route id (returns undefined if route not found)\n     * @param {string} routeId Route ID to search for\n     * @returns {routeDefinition|undefined} Route config for found id else undefined\n     */\n    getRouteConfigById(routeId) {\n        return Object.values(this.config.routes).filter(r => r.id === routeId)[0]\n    }\n\n    /** Return true if the given route is external, false otherwise\n     * Used to correctly (re)apply script tags when cloning the template to the DOM (createRouteContent)\n     * @param {string} routeId Route ID to check\n     * @returns {boolean} True if the given route is external, false otherwise\n     */\n    isRouteExternal(routeId) {\n        const routeConfig = this.getRouteConfigById(routeId)\n        return !!(routeConfig && routeConfig.type === 'url')\n    }\n\n    /** Go to the default route if it has been specified */\n    defaultRoute() {\n        if (this.config.defaultRoute) this.doRoute(this.config.defaultRoute)\n    }\n\n    /** Remove the hash from the browser URL */\n    removeHash() {\n        history.pushState('', document.title, window.location.pathname + window.location.search)\n    }\n\n    /** Empty the current container and remove url hash - does not trigger a route change */\n    noRoute() {\n        this.removeHash()\n        this.routeContainerEl.replaceChildren()\n    }\n\n    /** Only keep anything after the # & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Return an array of route ids (to facilitate creation of menus)\n     * @param {boolean} returnHash If true, returns id's with leading `#` to apply to href attributes else returns the id\n     * @returns {string[]} Array of route id's or route url hashes\n     */\n    routeList(returnHash) {\n        if (returnHash === true) return this.routeIds.map((r) => returnHash === true ? `#${r.id}` : r.id)\n        return this.routeIds\n    }\n\n    /** Add new route definitions to the existing ones\n     * @param {routeDefinition|routeDefinition[]} routeDefn Single or array of route definitions to add\n     */\n    addRoutes(routeDefn) {\n        if (!Array.isArray(routeDefn)) routeDefn = [routeDefn]\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routeDefn).filter(r => r.type && r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded - Add new routes to config\n                this.config.routes.push(...routeDefn)\n                // and update the routeIds list\n                this._updateRouteIds()\n                // Let everyone know it all finished\n                document.dispatchEvent(new CustomEvent('uibrouter:routes-added', { detail: routeDefn }))\n                if (uibuilder) uibuilder.set('uibrouter', 'routes added') // eslint-disable-line no-undef, promise/always-return\n            } )\n    }\n\n    //#region --- utils for page display & processing ---\n    setCurrentMenuItems() {\n        // const items = document.querySelectorAll(`li[data-route=\"${this.currentRouteId}\"]`)\n        const items = document.querySelectorAll('li[data-route]')\n        items.forEach( item => {\n            if (item.dataset.route === this.currentRouteId) {\n                item.classList.add('currentRoute')\n                item.setAttribute('aria-current', 'page')\n            } else {\n                item.classList.remove('currentRoute')\n                item.removeAttribute('aria-current')\n            }\n        })\n    }\n\n    routeTitle() {\n        const thisRoute = this.currentRoute() || {}\n        return thisRoute.title || thisRoute.id || '[ROUTE NOT FOUND]'\n    }\n\n    routeDescription() {\n        const thisRoute = this.currentRoute() || {}\n        return thisRoute.description || thisRoute.id || '[ROUTE NOT FOUND]'\n    }\n\n    currentRoute() {\n        return this.getRouteConfigById(this.currentRouteId)\n    }\n    //#endregion ---- ----- ----\n\n    // TODO\n    // deleteRoutes(aRoutes) {\n    //     // Delete all if no list provided\n    //     if (!aRoutes) aRoutes = this.config.routes\n    //     if (!Array.isArray(aRoutes)) aRoutes = [aRoutes]\n    //     console.log('to be deleted', this.config.routes.filter(r => aRoutes.includes(r.id)))\n    //     console.log('to be retained', this.config.routes.filter(r => !aRoutes.includes(r.id)))\n\n    //     // TODO actually remove the unwanted route templates\n    //     // TODO remove from the config: this.config.routes = this.config.routes.filter(r => !aRoutes.includes(r.id))\n\n    //     // ? Optional future upgrade - attempt to also remove any links to this route?\n    // }\n\n    // TODO\n    // deleteTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO delete\n    //     } )\n    // }\n\n    // TODO\n    // reloadTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO reload\n    //     } )\n    // }\n} // ---- End of class ----\n\n// For use in ESM loads\nexport { UibRouter }\nexport default UibRouter\n\n// Auto-assign for when the library is loaded via a script tag\nif (!window['UibRouter']) {\n    window['UibRouter'] = UibRouter\n} else {\n    console.warn('`UibRouter` already assigned to window. Have you tried to load it more than once?')\n}\n"],
-  "mappings": 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+  "sourcesContent": ["/* eslint-disable no-undef */\n// @ts-nocheck\n/** A simple, vanilla JavaScript front-end router class\n * Included in node-red-contrib-uibuilder but is not dependent on it.\n * May be used in other contexts as desired.\n * \n * Copyright (c) 2023-2023 Julian Knight (Totally Information)\n * https://it.knightnet.org.uk\n *\n * Licensed under the Apache License, Version 2.0 (the 'License');\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an 'AS IS' BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/** Type definitions\n * routeDefinition\n * @typedef {object} routeDefinition Single route configuration\n * @property {string} id REQUIRED. Route ID\n * @property {string} src REQUIRED. CSS Selector for template tag routes, url for external routes\n * @property {\"url\"|undefined} [type] OPTIONAL. \"url\" for external routes\n * @property {string} [title] OPTIONAL. Text to use as a short title for the route\n * @property {string} [description] OPTIONAL. Text to use as a long description for the route\n * UibRouterConfig\n * @typedef {object} UibRouterConfig Configuration for the UiBRouter class instances\n * @property {routeDefinition[]} routes REQUIRED. Array of route definitions\n * @property {string} [defaultRoute] OPTIONAL. If set to a route id, that route will be automatically shown on load\n * @property {string} [routeContainer] OPTIONAL. CSS Selector for an HTML Element containing routes\n * @property {boolean} [hide] OPTIONAL. If TRUE, routes will be hidden/shown on change instead of removed/added\n * @property {boolean} [unload] OPTIONAL. If TRUE, route templates will be unloaded from DOM after access. Only useful with the `hide` option\n */\n\nclass UibRouter { // eslint-disable-line no-unused-vars\n    //#region --- Variables ---\n    /** Class version */\n    static version = '1.0.1'\n\n    /** Configuration settings @type {UibRouterConfig} */\n    config\n    /** Reference to the container DOM element - set in setup() @type {HTMLDivElement} */\n    routeContainerEl\n    /** The current route id after doRoute() has been called */\n    currentRouteId\n    /** The previous route id after doRoute() has been called */\n    previousRouteId\n    /** Array of route ID's (created in constructor) */\n    routeIds = []\n\n    /** Internal only. Set to true when the _start() method has been called */\n    #startDone = false\n    //#endregion --- ----- ---\n\n    //#region --- Internal Methods ---\n    /** Class constructor\n     * @param {UibRouterConfig} routerConfig Configuration object\n     */\n    constructor(routerConfig) {\n        // Fetch is on desktop browsers since 2017 at latest. Not so much on mobile (Android!)\n        // May need a polyfill on mobile or old browsers.\n        if (!fetch) throw new Error('[uibrouter:constructor] UibRouter requires `fetch`. Please use a current browser or load a fetch polyfill.')\n\n        if (!routerConfig) throw new Error('[uibrouter:constructor] No config provided')\n        if (!routerConfig.routes) throw new Error('[uibrouter:constructor] No routes provided in routerConfig')\n        // Add a default route container uf needed\n        if (!routerConfig.routeContainer)routerConfig.routeContainer = '#uibroutecontainer'\n\n        // Save the config\n        this.config = routerConfig\n        // If no default set in config, set to the first entry\n        if (!this.config.defaultRoute && this.config.routes[0] && this.config.routes[0].id) this.config.defaultRoute = this.config.routes[0].id\n        // Create/access the route container element, sets this.routeContainerEl\n        this._setRouteContainer()\n\n        this._updateRouteIds()\n\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routerConfig.routes).filter(r => r.type && r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded so we can start\n                this._start()\n            } )\n    }\n\n    /** Save a reference to, and create if necessary, the HTML element to hold routes */\n    _setRouteContainer() {\n        const body = document.getElementsByTagName('body')[0]\n        // Get reference to route container or create it\n        let routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        if (!routeContainerEl) {\n            // throw new Error(`Route container element with CSS selector '${routerConfig.routeContainer}' not found in HTML`)\n            const tempContainer = document.createElement('div')\n            tempContainer.setAttribute('id', this.config.routeContainer.replace('#', ''))\n            body.append(tempContainer)\n            routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        }\n    }\n\n    /** Load fetched external elements to templates tags under the head tag\n     * @param {HTMLElement[]} loadedElements Array of loaded external elements to add as templates to the head tag\n     */\n    _appendExternalTemplates(loadedElements) {\n        const head = document.getElementsByTagName('head')[0]\n        // Append the loaded content to the main container\n        loadedElements.forEach(element => {\n            if (Array.isArray(element)) {\n                console.error(...element)\n            } else {\n                head.append(element)\n            }\n        })\n    }\n\n    /** Called once all external templates have been loaded */\n    _start() {\n        if (this.#startDone === true) return // Don't run this again\n\n        // Listen for url hash changes and process route change\n        window.addEventListener('hashchange', (event) => this._hashChange(event) )\n        // Go to default route if no route in url and if a default is defined or ensure current route is shown\n        this.doRoute()\n        // Events on fully loaded ...\n        document.dispatchEvent(new CustomEvent('uibrouter:loaded'))\n        if (uibuilder) uibuilder.set('uibrouter', 'loaded') // eslint-disable-line no-undef\n\n        this.#startDone = true // Don't run this again\n    }\n\n    /** Called when the URL Hash changes\n     * @param {HashChangeEvent} event URL Hash change event object\n     */\n    _hashChange(event) {\n        // console.log(`[uibrouter] hashchange: ${this.keepHashFromUrl(event.oldURL)} => ${this.keepHashFromUrl(event.newURL)}` )\n        this.doRoute(event)\n    }\n\n    /** Create DOM route content from a route template (internal or external)\n     * Route templates have to be a `<template>` tag with an ID that matches the route id.\n     * @param {string} routeId ID of the route definition to use to create the content\n     * @returns {boolean} True if the route content was created successfully, false otherwise\n     */\n    _createRouteContent(routeId) {\n        const rContent = document.querySelector(`#${routeId}`)\n        if (!rContent) {\n            console.error(`[uibrouter:createRouteContent] No route template found for route selector '#${routeId}'. Does the link url match a defined route id?`)\n            return false\n        }\n        const docFrag = rContent.content.cloneNode(true)\n        // Have to re-apply the scripts to make them run - only for external templates\n        if (this.isRouteExternal(routeId)) this._applyScripts(docFrag)\n        // Create the route wrapper div with data-route attrib\n        const tempContainer = document.createElement('div')\n        tempContainer.dataset.route = routeId\n        tempContainer.append(docFrag)\n        // And finally try to append to the container\n        try {\n            this.routeContainerEl.append(tempContainer)\n        } catch (e) {\n            console.error(`[uibrouter:createRouteContent] Failed to apply route id '${routeId}'. \\n ${e.message}`)\n            return false\n        }\n        return true\n    }\n\n    /** Loads an external HTML file into a `<template>` tag, adding the router id as the template id.\n     *  or returns an error array\n     * @param {routeDefinition} routeDefinition Configuration for a single route\n     * @returns {Promise<HTMLTemplateElement[]|[string,string,number,string]>} A promise that fulfills to an HTMLTemplateElement or an array containing error information\n     */\n    _loadExternal(routeDefinition) {\n        // const id = singleConfig.src.split('/').pop().replace('.html','')\n        const id = routeDefinition.id\n        // @ts-ignore\n        return fetch(routeDefinition.src)\n            .then(response => {\n                // Fetch failed?\n                if (response.ok === false) return [routeDefinition.id, routeDefinition.src, response.status, response.statusText]\n                return response.text()\n            })\n            .then((/** @type {string} */ htmlText) => {\n                if (Array.isArray(htmlText)) return htmlText // if the fetch failed\n\n                // Check to see if template already exists, if so, remove it\n                try {\n                    const chkTemplate = document.querySelector(`#${id}`)\n                    if (chkTemplate) chkTemplate.remove()\n                } catch (e) {}\n\n                const tempContainer = document.createElement('template')\n                tempContainer.innerHTML = htmlText\n                tempContainer.setAttribute('id', id)\n                return tempContainer\n            })\n            .catch(error => {\n                console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${routeDefinition.src}:`, error)\n            })\n    }\n\n    /** Remove/re-apply scripts in a container Element so that they are executed.\n     * @param {HTMLElement} tempContainer HTML Element of container to process\n     */\n    _applyScripts(tempContainer) {\n        const scripts = tempContainer.querySelectorAll('script')\n        scripts.forEach( scr => {\n            const newScript = document.createElement('script')\n            newScript.textContent = scr.innerText\n            tempContainer.append(newScript)\n            scr.remove() // remove the origin\n        })\n    }\n\n    /** Update this.routeIds array from this.config (on start and after add/remove routes) */\n    _updateRouteIds() {\n        this.routeIds = new Set(Object.values(routerConfig.routes).map( r => r.id ))\n    }\n    //#endregion --- ----- --\n\n    /** Process a routing request\n     * @param {PointerEvent|MouseEvent|HashChangeEvent|TouchEvent|string} routeSource Either string containing route id or DOM Event object either click/touch on element containing `href=\"#routeid\"` or Hash URL change event\n     */\n    doRoute(routeSource) {\n        if (!routeSource) routeSource = this.config.defaultRoute\n\n        const container = this.routeContainerEl\n        if (!container) throw new Error('[uibrouter:doRoute] Cannot route, has router.setup() been called yet?')\n\n        // Remove all the url and query param text and any leading # - returns '' if no current hash\n        const currentHash = this.keepHashFromUrl(window.location.hash)\n\n        // If no route source provided, take the current hash (which might be '' and that will trigger the default route if defined)\n        if (!routeSource) routeSource = currentHash\n\n        let newRouteId, oldRouteId\n\n        // Define new and old routes depending on different call types\n        if (typeof routeSource === 'string') { // Manually provided route id\n            // console.log(`[uibrouter:doRoute] manual: ${currentHash} => ${this.keepHashFromUrl(routeSource)}. Current: ${currentHash}` )\n            newRouteId = this.keepHashFromUrl(routeSource)\n            oldRouteId = currentHash\n            // If no hash & config has default, set the default as new\n            if (newRouteId === '' && this.config.defaultRoute) newRouteId = this.config.defaultRoute\n            // If the new route id not the same as the current one in the url hash, just change the current hash & exit\n            if (newRouteId !== currentHash ) {\n                window.location.hash = `#${newRouteId}`\n                return\n            }\n        } else if (routeSource.type === 'hashchange') { // A URL Hash change event\n            // console.log(`[uibrouter:doRoute] hashchange: ${this.keepHashFromUrl(routeSource.oldURL)} => ${this.keepHashFromUrl(routeSource.newURL)}. Current: ${currentHash}` )\n            const newUrl = routeSource.newURL\n            // Check if URL actually contains a #\n            if (newUrl.includes('#')) {\n                oldRouteId = this.keepHashFromUrl(routeSource.oldURL)\n                newRouteId = this.keepHashFromUrl(newUrl) // Only keep anything after the # & ignoring query params\n            } else return\n        } else { // A mouse click/touch event on a dom element with an href attribute\n            oldRouteId = currentHash\n            // Try to get the route name from the URL hash\n            try {\n                newRouteId = this.keepHashFromUrl(routeSource.target.attributes.href.value) // Only keep anything after the # & ignoring query params\n            } catch (e) {\n                throw new Error('[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute')\n            }\n        }\n\n        let routeShown = false\n\n        // If no defined valid route, undo and throw error\n        if (!newRouteId || !this.routeIds.has(newRouteId)) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            throw new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${newRouteId}'`)\n        }\n\n        // Show the new container (replace or show)\n        if (this.config.hide) {\n            // config.hide = true so hide previous contents\n            if (oldRouteId) {\n                /** @type {HTMLElement|null} */\n                const oldContent = document.querySelector(`div[data-route=\"${oldRouteId}\"]`)\n                if (oldContent) oldContent.style.display = 'none'\n            }\n            /** and unhide new route if possible @type {HTMLElement|null} */\n            const content = document.querySelector(`div[data-route=\"${newRouteId}\"]`)\n            if (content) {\n                content.style.removeProperty('display')\n                routeShown = true\n            } else {\n                // else create new content from template\n                routeShown = this._createRouteContent(newRouteId)\n            }\n        } else {\n            // config.hide != true so remove previous contents\n            container.replaceChildren()\n            // Create new content from template\n            routeShown = this._createRouteContent(newRouteId)\n        }\n\n        // console.log({ newRouteId, oldRouteId, currentHash, routeShown })\n\n        // Roll back the route change if the new route cannot be shown\n        if (routeShown === false) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            return\n        }\n\n        // Retain current and previous route id's\n        this.currentRouteId = newRouteId\n        this.previousRouteId = oldRouteId\n\n        // Record the current route on the route container\n        container.dataset.currentRoute = newRouteId\n\n        // Update any existing HTML menu items\n        this.setCurrentMenuItems()\n\n        // Events on route changed ...\n        document.dispatchEvent(new CustomEvent('uibrouter:route-changed', { detail: { newRouteId, oldRouteId } }))\n        if (uibuilder) {\n            uibuilder.set('uibrouter', 'route changed')\n            uibuilder.set('uibrouter_CurrentRoute', newRouteId)\n            uibuilder.set('uibrouter_CurrentTitle', this.routeTitle())\n            uibuilder.set('uibrouter_CurrentDescription', this.routeDescription())\n            uibuilder.set('uibrouter_CurrentDetails', this.getRouteConfigById(newRouteId))\n        }\n    }\n\n    /** Return a route config given a route id (returns undefined if route not found)\n     * @param {string} routeId Route ID to search for\n     * @returns {routeDefinition|undefined} Route config for found id else undefined\n     */\n    getRouteConfigById(routeId) {\n        return Object.values(this.config.routes).filter(r => r.id === routeId)[0]\n    }\n\n    /** Return true if the given route is external, false otherwise\n     * Used to correctly (re)apply script tags when cloning the template to the DOM (createRouteContent)\n     * @param {string} routeId Route ID to check\n     * @returns {boolean} True if the given route is external, false otherwise\n     */\n    isRouteExternal(routeId) {\n        const routeConfig = this.getRouteConfigById(routeId)\n        return !!(routeConfig && routeConfig.type === 'url')\n    }\n\n    /** Go to the default route if it has been specified */\n    defaultRoute() {\n        if (this.config.defaultRoute) this.doRoute(this.config.defaultRoute)\n    }\n\n    /** Remove the hash from the browser URL */\n    removeHash() {\n        history.pushState('', document.title, window.location.pathname + window.location.search)\n    }\n\n    /** Empty the current container and remove url hash - does not trigger a route change */\n    noRoute() {\n        this.removeHash()\n        this.routeContainerEl.replaceChildren()\n    }\n\n    /** Only keep anything after the # & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Return an array of route ids (to facilitate creation of menus)\n     * @param {boolean} returnHash If true, returns id's with leading `#` to apply to href attributes else returns the id\n     * @returns {string[]} Array of route id's or route url hashes\n     */\n    routeList(returnHash) {\n        if (returnHash === true) return this.routeIds.map((r) => returnHash === true ? `#${r.id}` : r.id)\n        return this.routeIds\n    }\n\n    /** Add new route definitions to the existing ones\n     * @param {routeDefinition|routeDefinition[]} routeDefn Single or array of route definitions to add\n     */\n    addRoutes(routeDefn) {\n        if (!Array.isArray(routeDefn)) routeDefn = [routeDefn]\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routeDefn).filter(r => r.type && r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded - Add new routes to config\n                this.config.routes.push(...routeDefn)\n                // and update the routeIds list\n                this._updateRouteIds()\n                // Let everyone know it all finished\n                document.dispatchEvent(new CustomEvent('uibrouter:routes-added', { detail: routeDefn }))\n                if (uibuilder) uibuilder.set('uibrouter', 'routes added') // eslint-disable-line no-undef, promise/always-return\n            } )\n    }\n\n    //#region --- utils for page display & processing ---\n    setCurrentMenuItems() {\n        // const items = document.querySelectorAll(`li[data-route=\"${this.currentRouteId}\"]`)\n        const items = document.querySelectorAll('li[data-route]')\n        items.forEach( item => {\n            if (item.dataset.route === this.currentRouteId) {\n                item.classList.add('currentRoute')\n                item.setAttribute('aria-current', 'page')\n            } else {\n                item.classList.remove('currentRoute')\n                item.removeAttribute('aria-current')\n            }\n        })\n    }\n\n    routeTitle() {\n        const thisRoute = this.currentRoute() || {}\n        return thisRoute.title || thisRoute.id || '[ROUTE NOT FOUND]'\n    }\n\n    routeDescription() {\n        const thisRoute = this.currentRoute() || {}\n        return thisRoute.description || thisRoute.id || '[ROUTE NOT FOUND]'\n    }\n\n    currentRoute() {\n        return this.getRouteConfigById(this.currentRouteId)\n    }\n    //#endregion ---- ----- ----\n\n    // TODO\n    // deleteRoutes(aRoutes) {\n    //     // Delete all if no list provided\n    //     if (!aRoutes) aRoutes = this.config.routes\n    //     if (!Array.isArray(aRoutes)) aRoutes = [aRoutes]\n    //     console.log('to be deleted', this.config.routes.filter(r => aRoutes.includes(r.id)))\n    //     console.log('to be retained', this.config.routes.filter(r => !aRoutes.includes(r.id)))\n\n    //     // TODO actually remove the unwanted route templates\n    //     // TODO remove from the config: this.config.routes = this.config.routes.filter(r => !aRoutes.includes(r.id))\n\n    //     // ? Optional future upgrade - attempt to also remove any links to this route?\n    // }\n\n    // TODO\n    // deleteTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO delete\n    //     } )\n    // }\n\n    // TODO\n    // reloadTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO reload\n    //     } )\n    // }\n} // ---- End of class ----\n\n// For use in ESM loads\nexport { UibRouter }\nexport default UibRouter\n\n// Auto-assign for when the library is loaded via a script tag\nif (!window['UibRouter']) {\n    window['UibRouter'] = UibRouter\n} else {\n    console.warn('`UibRouter` already assigned to window. Have you tried to load it more than once?')\n}\n"],
+  "mappings": 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   "names": ["_startDone", "UibRouter", "routerConfig", "__publicField", "__privateAdd", "r", "body", "routeContainerEl", "tempContainer", "loadedElements", "head", "element", "__privateGet", "event", "__privateSet", "routeId", "rContent", "docFrag", "e", "routeDefinition", "id", "response", "htmlText", "chkTemplate", "error", "scr", "newScript", "routeSource", "container", "currentHash", "newRouteId", "oldRouteId", "newUrl", "routeShown", "oldContent", "content", "routeConfig", "url", "returnHash", "routeDefn", "item", "thisRoute", "uibrouter_default", "UibRouter"]
 }
diff --git a/front-end/utils/uibrouter.iife.js b/front-end/utils/uibrouter.iife.js
index 701e2d41..272b969d 100644
--- a/front-end/utils/uibrouter.iife.js
+++ b/front-end/utils/uibrouter.iife.js
@@ -54,6 +54,8 @@
       if (!routerConfig2.routeContainer)
         routerConfig2.routeContainer = "#uibroutecontainer";
       this.config = routerConfig2;
+      if (!this.config.defaultRoute && this.config.routes[0] && this.config.routes[0].id)
+        this.config.defaultRoute = this.config.routes[0].id;
       this._setRouteContainer();
       this._updateRouteIds();
       Promise.all(Object.values(routerConfig2.routes).filter((r) => r.type && r.type === "url").map(this._loadExternal)).then(this._appendExternalTemplates).then(() => {
@@ -176,6 +178,8 @@
      * @param {PointerEvent|MouseEvent|HashChangeEvent|TouchEvent|string} routeSource Either string containing route id or DOM Event object either click/touch on element containing `href="#routeid"` or Hash URL change event
      */
     doRoute(routeSource) {
+      if (!routeSource)
+        routeSource = this.config.defaultRoute;
       const container = this.routeContainerEl;
       if (!container)
         throw new Error("[uibrouter:doRoute] Cannot route, has router.setup() been called yet?");
diff --git a/front-end/utils/uibrouter.iife.min.js b/front-end/utils/uibrouter.iife.min.js
index 90ebac54..402d7395 100644
--- a/front-end/utils/uibrouter.iife.min.js
+++ b/front-end/utils/uibrouter.iife.min.js
@@ -1,3 +1,3 @@
-(()=>{var b=Object.defineProperty;var R=(i,e,t)=>e in i?b(i,e,{enumerable:!0,configurable:!0,writable:!0,value:t}):i[e]=t;var n=(i,e,t)=>(R(i,typeof e!="symbol"?e+"":e,t),t),h=(i,e,t)=>{if(!e.has(i))throw TypeError("Cannot "+t)};var p=(i,e,t)=>(h(i,e,"read from private field"),t?t.call(i):e.get(i)),f=(i,e,t)=>{if(e.has(i))throw TypeError("Cannot add the same private member more than once");e instanceof WeakSet?e.add(i):e.set(i,t)},m=(i,e,t,r)=>(h(i,e,"write to private field"),r?r.call(i,t):e.set(i,t),t);var d,a=class{constructor(e){n(this,"config");n(this,"routeContainerEl");n(this,"currentRouteId");n(this,"previousRouteId");n(this,"routeIds",[]);f(this,d,!1);if(!fetch)throw new Error("[uibrouter:constructor] UibRouter requires `fetch`. Please use a current browser or load a fetch polyfill.");if(!e)throw new Error("[uibrouter:constructor] No config provided");if(!e.routes)throw new Error("[uibrouter:constructor] No routes provided in routerConfig");e.routeContainer||(e.routeContainer="#uibroutecontainer"),this.config=e,this._setRouteContainer(),this._updateRouteIds(),Promise.all(Object.values(e.routes).filter(t=>t.type&&t.type==="url").map(this._loadExternal)).then(this._appendExternalTemplates).then(()=>{this._start()})}_setRouteContainer(){let e=document.getElementsByTagName("body")[0],t=this.routeContainerEl=document.querySelector(this.config.routeContainer);if(!t){let r=document.createElement("div");r.setAttribute("id",this.config.routeContainer.replace("#","")),e.append(r),t=this.routeContainerEl=document.querySelector(this.config.routeContainer)}}_appendExternalTemplates(e){let t=document.getElementsByTagName("head")[0];e.forEach(r=>{Array.isArray(r)?console.error(...r):t.append(r)})}_start(){p(this,d)!==!0&&(window.addEventListener("hashchange",e=>this._hashChange(e)),this.doRoute(),document.dispatchEvent(new CustomEvent("uibrouter:loaded")),uibuilder&&uibuilder.set("uibrouter","loaded"),m(this,d,!0))}_hashChange(e){this.doRoute(e)}_createRouteContent(e){let t=document.querySelector(`#${e}`);if(!t)return console.error(`[uibrouter:createRouteContent] No route template found for route selector '#${e}'. Does the link url match a defined route id?`),!1;let r=t.content.cloneNode(!0);this.isRouteExternal(e)&&this._applyScripts(r);let o=document.createElement("div");o.dataset.route=e,o.append(r);try{this.routeContainerEl.append(o)}catch(u){return console.error(`[uibrouter:createRouteContent] Failed to apply route id '${e}'. 
- ${u.message}`),!1}return!0}_loadExternal(e){let t=e.id;return fetch(e.src).then(r=>r.ok===!1?[e.id,e.src,r.status,r.statusText]:r.text()).then(r=>{if(Array.isArray(r))return r;try{let u=document.querySelector(`#${t}`);u&&u.remove()}catch{}let o=document.createElement("template");return o.innerHTML=r,o.setAttribute("id",t),o}).catch(r=>{console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${e.src}:`,r)})}_applyScripts(e){e.querySelectorAll("script").forEach(r=>{let o=document.createElement("script");o.textContent=r.innerText,e.append(o),r.remove()})}_updateRouteIds(){this.routeIds=new Set(Object.values(routerConfig.routes).map(e=>e.id))}doRoute(e){let t=this.routeContainerEl;if(!t)throw new Error("[uibrouter:doRoute] Cannot route, has router.setup() been called yet?");let r=this.keepHashFromUrl(window.location.hash);e||(e=r);let o,u;if(typeof e=="string"){if(o=this.keepHashFromUrl(e),u=r,o===""&&this.config.defaultRoute&&(o=this.config.defaultRoute),o!==r){window.location.hash=`#${o}`;return}}else if(e.type==="hashchange"){let s=e.newURL;if(s.includes("#"))u=this.keepHashFromUrl(e.oldURL),o=this.keepHashFromUrl(s);else return}else{u=r;try{o=this.keepHashFromUrl(e.target.attributes.href.value)}catch{throw new Error("[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute")}}let l=!1;if(!o||!this.routeIds.has(o))throw document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:u}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=u?`#${u}`:"",new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${o}'`);if(this.config.hide){if(u){let c=document.querySelector(`div[data-route="${u}"]`);c&&(c.style.display="none")}let s=document.querySelector(`div[data-route="${o}"]`);s?(s.style.removeProperty("display"),l=!0):l=this._createRouteContent(o)}else t.replaceChildren(),l=this._createRouteContent(o);if(l===!1){document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:u}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=u?`#${u}`:"";return}this.currentRouteId=o,this.previousRouteId=u,t.dataset.currentRoute=o,this.setCurrentMenuItems(),document.dispatchEvent(new CustomEvent("uibrouter:route-changed",{detail:{newRouteId:o,oldRouteId:u}})),uibuilder&&(uibuilder.set("uibrouter","route changed"),uibuilder.set("uibrouter_CurrentRoute",o),uibuilder.set("uibrouter_CurrentTitle",this.routeTitle()),uibuilder.set("uibrouter_CurrentDescription",this.routeDescription()),uibuilder.set("uibrouter_CurrentDetails",this.getRouteConfigById(o)))}getRouteConfigById(e){return Object.values(this.config.routes).filter(t=>t.id===e)[0]}isRouteExternal(e){let t=this.getRouteConfigById(e);return!!(t&&t.type==="url")}defaultRoute(){this.config.defaultRoute&&this.doRoute(this.config.defaultRoute)}removeHash(){history.pushState("",document.title,window.location.pathname+window.location.search)}noRoute(){this.removeHash(),this.routeContainerEl.replaceChildren()}keepHashFromUrl(e){return e?e.replace(/^.*#(.*)/,"$1").replace(/\?.*$/,""):""}routeList(e){return e===!0?this.routeIds.map(t=>e===!0?`#${t.id}`:t.id):this.routeIds}addRoutes(e){Array.isArray(e)||(e=[e]),Promise.all(Object.values(e).filter(t=>t.type&&t.type==="url").map(this._loadExternal)).then(this._appendExternalTemplates).then(()=>{this.config.routes.push(...e),this._updateRouteIds(),document.dispatchEvent(new CustomEvent("uibrouter:routes-added",{detail:e})),uibuilder&&uibuilder.set("uibrouter","routes added")})}setCurrentMenuItems(){document.querySelectorAll("li[data-route]").forEach(t=>{t.dataset.route===this.currentRouteId?(t.classList.add("currentRoute"),t.setAttribute("aria-current","page")):(t.classList.remove("currentRoute"),t.removeAttribute("aria-current"))})}routeTitle(){let e=this.currentRoute()||{};return e.title||e.id||"[ROUTE NOT FOUND]"}routeDescription(){let e=this.currentRoute()||{};return e.description||e.id||"[ROUTE NOT FOUND]"}currentRoute(){return this.getRouteConfigById(this.currentRouteId)}};d=new WeakMap,n(a,"version","1.0.1");var w=a;window.UibRouter?console.warn("`UibRouter` already assigned to window. Have you tried to load it more than once?"):window.UibRouter=a;})();
+(()=>{var R=Object.defineProperty;var b=(i,e,t)=>e in i?R(i,e,{enumerable:!0,configurable:!0,writable:!0,value:t}):i[e]=t;var n=(i,e,t)=>(b(i,typeof e!="symbol"?e+"":e,t),t),h=(i,e,t)=>{if(!e.has(i))throw TypeError("Cannot "+t)};var f=(i,e,t)=>(h(i,e,"read from private field"),t?t.call(i):e.get(i)),p=(i,e,t)=>{if(e.has(i))throw TypeError("Cannot add the same private member more than once");e instanceof WeakSet?e.add(i):e.set(i,t)},m=(i,e,t,r)=>(h(i,e,"write to private field"),r?r.call(i,t):e.set(i,t),t);var d,a=class{constructor(e){n(this,"config");n(this,"routeContainerEl");n(this,"currentRouteId");n(this,"previousRouteId");n(this,"routeIds",[]);p(this,d,!1);if(!fetch)throw new Error("[uibrouter:constructor] UibRouter requires `fetch`. Please use a current browser or load a fetch polyfill.");if(!e)throw new Error("[uibrouter:constructor] No config provided");if(!e.routes)throw new Error("[uibrouter:constructor] No routes provided in routerConfig");e.routeContainer||(e.routeContainer="#uibroutecontainer"),this.config=e,!this.config.defaultRoute&&this.config.routes[0]&&this.config.routes[0].id&&(this.config.defaultRoute=this.config.routes[0].id),this._setRouteContainer(),this._updateRouteIds(),Promise.all(Object.values(e.routes).filter(t=>t.type&&t.type==="url").map(this._loadExternal)).then(this._appendExternalTemplates).then(()=>{this._start()})}_setRouteContainer(){let e=document.getElementsByTagName("body")[0],t=this.routeContainerEl=document.querySelector(this.config.routeContainer);if(!t){let r=document.createElement("div");r.setAttribute("id",this.config.routeContainer.replace("#","")),e.append(r),t=this.routeContainerEl=document.querySelector(this.config.routeContainer)}}_appendExternalTemplates(e){let t=document.getElementsByTagName("head")[0];e.forEach(r=>{Array.isArray(r)?console.error(...r):t.append(r)})}_start(){f(this,d)!==!0&&(window.addEventListener("hashchange",e=>this._hashChange(e)),this.doRoute(),document.dispatchEvent(new CustomEvent("uibrouter:loaded")),uibuilder&&uibuilder.set("uibrouter","loaded"),m(this,d,!0))}_hashChange(e){this.doRoute(e)}_createRouteContent(e){let t=document.querySelector(`#${e}`);if(!t)return console.error(`[uibrouter:createRouteContent] No route template found for route selector '#${e}'. Does the link url match a defined route id?`),!1;let r=t.content.cloneNode(!0);this.isRouteExternal(e)&&this._applyScripts(r);let o=document.createElement("div");o.dataset.route=e,o.append(r);try{this.routeContainerEl.append(o)}catch(u){return console.error(`[uibrouter:createRouteContent] Failed to apply route id '${e}'. 
+ ${u.message}`),!1}return!0}_loadExternal(e){let t=e.id;return fetch(e.src).then(r=>r.ok===!1?[e.id,e.src,r.status,r.statusText]:r.text()).then(r=>{if(Array.isArray(r))return r;try{let u=document.querySelector(`#${t}`);u&&u.remove()}catch{}let o=document.createElement("template");return o.innerHTML=r,o.setAttribute("id",t),o}).catch(r=>{console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${e.src}:`,r)})}_applyScripts(e){e.querySelectorAll("script").forEach(r=>{let o=document.createElement("script");o.textContent=r.innerText,e.append(o),r.remove()})}_updateRouteIds(){this.routeIds=new Set(Object.values(routerConfig.routes).map(e=>e.id))}doRoute(e){e||(e=this.config.defaultRoute);let t=this.routeContainerEl;if(!t)throw new Error("[uibrouter:doRoute] Cannot route, has router.setup() been called yet?");let r=this.keepHashFromUrl(window.location.hash);e||(e=r);let o,u;if(typeof e=="string"){if(o=this.keepHashFromUrl(e),u=r,o===""&&this.config.defaultRoute&&(o=this.config.defaultRoute),o!==r){window.location.hash=`#${o}`;return}}else if(e.type==="hashchange"){let s=e.newURL;if(s.includes("#"))u=this.keepHashFromUrl(e.oldURL),o=this.keepHashFromUrl(s);else return}else{u=r;try{o=this.keepHashFromUrl(e.target.attributes.href.value)}catch{throw new Error("[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute")}}let l=!1;if(!o||!this.routeIds.has(o))throw document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:u}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=u?`#${u}`:"",new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${o}'`);if(this.config.hide){if(u){let c=document.querySelector(`div[data-route="${u}"]`);c&&(c.style.display="none")}let s=document.querySelector(`div[data-route="${o}"]`);s?(s.style.removeProperty("display"),l=!0):l=this._createRouteContent(o)}else t.replaceChildren(),l=this._createRouteContent(o);if(l===!1){document.dispatchEvent(new CustomEvent("uibrouter:route-change-failed",{detail:{newRouteId:o,oldRouteId:u}})),uibuilder&&uibuilder.set("uibrouter","route change failed"),window.location.hash=u?`#${u}`:"";return}this.currentRouteId=o,this.previousRouteId=u,t.dataset.currentRoute=o,this.setCurrentMenuItems(),document.dispatchEvent(new CustomEvent("uibrouter:route-changed",{detail:{newRouteId:o,oldRouteId:u}})),uibuilder&&(uibuilder.set("uibrouter","route changed"),uibuilder.set("uibrouter_CurrentRoute",o),uibuilder.set("uibrouter_CurrentTitle",this.routeTitle()),uibuilder.set("uibrouter_CurrentDescription",this.routeDescription()),uibuilder.set("uibrouter_CurrentDetails",this.getRouteConfigById(o)))}getRouteConfigById(e){return Object.values(this.config.routes).filter(t=>t.id===e)[0]}isRouteExternal(e){let t=this.getRouteConfigById(e);return!!(t&&t.type==="url")}defaultRoute(){this.config.defaultRoute&&this.doRoute(this.config.defaultRoute)}removeHash(){history.pushState("",document.title,window.location.pathname+window.location.search)}noRoute(){this.removeHash(),this.routeContainerEl.replaceChildren()}keepHashFromUrl(e){return e?e.replace(/^.*#(.*)/,"$1").replace(/\?.*$/,""):""}routeList(e){return e===!0?this.routeIds.map(t=>e===!0?`#${t.id}`:t.id):this.routeIds}addRoutes(e){Array.isArray(e)||(e=[e]),Promise.all(Object.values(e).filter(t=>t.type&&t.type==="url").map(this._loadExternal)).then(this._appendExternalTemplates).then(()=>{this.config.routes.push(...e),this._updateRouteIds(),document.dispatchEvent(new CustomEvent("uibrouter:routes-added",{detail:e})),uibuilder&&uibuilder.set("uibrouter","routes added")})}setCurrentMenuItems(){document.querySelectorAll("li[data-route]").forEach(t=>{t.dataset.route===this.currentRouteId?(t.classList.add("currentRoute"),t.setAttribute("aria-current","page")):(t.classList.remove("currentRoute"),t.removeAttribute("aria-current"))})}routeTitle(){let e=this.currentRoute()||{};return e.title||e.id||"[ROUTE NOT FOUND]"}routeDescription(){let e=this.currentRoute()||{};return e.description||e.id||"[ROUTE NOT FOUND]"}currentRoute(){return this.getRouteConfigById(this.currentRouteId)}};d=new WeakMap,n(a,"version","1.0.1");var E=a;window.UibRouter?console.warn("`UibRouter` already assigned to window. Have you tried to load it more than once?"):window.UibRouter=a;})();
 //# sourceMappingURL=uibrouter.iife.min.js.map
diff --git a/front-end/utils/uibrouter.iife.min.js.map b/front-end/utils/uibrouter.iife.min.js.map
index cb5eb6f5..62eae481 100644
--- a/front-end/utils/uibrouter.iife.min.js.map
+++ b/front-end/utils/uibrouter.iife.min.js.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
   "sources": ["src/front-end-module/uibrouter.js"],
-  "sourcesContent": ["/* eslint-disable no-undef */\n// @ts-nocheck\n/** A simple, vanilla JavaScript front-end router class\n * Included in node-red-contrib-uibuilder but is not dependent on it.\n * May be used in other contexts as desired.\n * \n * Copyright (c) 2023-2023 Julian Knight (Totally Information)\n * https://it.knightnet.org.uk\n *\n * Licensed under the Apache License, Version 2.0 (the 'License');\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an 'AS IS' BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/** Type definitions\n * routeDefinition\n * @typedef {object} routeDefinition Single route configuration\n * @property {string} id REQUIRED. Route ID\n * @property {string} src REQUIRED. CSS Selector for template tag routes, url for external routes\n * @property {\"url\"|undefined} [type] OPTIONAL. \"url\" for external routes\n * @property {string} [title] OPTIONAL. Text to use as a short title for the route\n * @property {string} [description] OPTIONAL. Text to use as a long description for the route\n * UibRouterConfig\n * @typedef {object} UibRouterConfig Configuration for the UiBRouter class instances\n * @property {routeDefinition[]} routes REQUIRED. Array of route definitions\n * @property {string} [defaultRoute] OPTIONAL. If set to a route id, that route will be automatically shown on load\n * @property {string} [routeContainer] OPTIONAL. CSS Selector for an HTML Element containing routes\n * @property {boolean} [hide] OPTIONAL. If TRUE, routes will be hidden/shown on change instead of removed/added\n * @property {boolean} [unload] OPTIONAL. If TRUE, route templates will be unloaded from DOM after access. Only useful with the `hide` option\n */\n\nclass UibRouter { // eslint-disable-line no-unused-vars\n    //#region --- Variables ---\n    /** Class version */\n    static version = '1.0.1'\n\n    /** Configuration settings @type {UibRouterConfig} */\n    config\n    /** Reference to the container DOM element - set in setup() @type {HTMLDivElement} */\n    routeContainerEl\n    /** The current route id after doRoute() has been called */\n    currentRouteId\n    /** The previous route id after doRoute() has been called */\n    previousRouteId\n    /** Array of route ID's (created in constructor) */\n    routeIds = []\n\n    /** Internal only. Set to true when the _start() method has been called */\n    #startDone = false\n    //#endregion --- ----- ---\n\n    //#region --- Internal Methods ---\n    /** Class constructor\n     * @param {UibRouterConfig} routerConfig Configuration object\n     */\n    constructor(routerConfig) {\n        // Fetch is on desktop browsers since 2017 at latest. Not so much on mobile (Android!)\n        // May need a polyfill on mobile or old browsers.\n        if (!fetch) throw new Error('[uibrouter:constructor] UibRouter requires `fetch`. Please use a current browser or load a fetch polyfill.')\n\n        if (!routerConfig) throw new Error('[uibrouter:constructor] No config provided')\n        if (!routerConfig.routes) throw new Error('[uibrouter:constructor] No routes provided in routerConfig')\n        // Add a default route container uf needed\n        if (!routerConfig.routeContainer)routerConfig.routeContainer = '#uibroutecontainer'\n\n        // Save the config\n        this.config = routerConfig\n        // Create/access the route container element, sets this.routeContainerEl\n        this._setRouteContainer()\n\n        this._updateRouteIds()\n\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routerConfig.routes).filter(r => r.type && r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded so we can start\n                this._start()\n            } )\n    }\n\n    /** Save a reference to, and create if necessary, the HTML element to hold routes */\n    _setRouteContainer() {\n        const body = document.getElementsByTagName('body')[0]\n        // Get reference to route container or create it\n        let routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        if (!routeContainerEl) {\n            // throw new Error(`Route container element with CSS selector '${routerConfig.routeContainer}' not found in HTML`)\n            const tempContainer = document.createElement('div')\n            tempContainer.setAttribute('id', this.config.routeContainer.replace('#', ''))\n            body.append(tempContainer)\n            routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        }\n    }\n\n    /** Load fetched external elements to templates tags under the head tag\n     * @param {HTMLElement[]} loadedElements Array of loaded external elements to add as templates to the head tag\n     */\n    _appendExternalTemplates(loadedElements) {\n        const head = document.getElementsByTagName('head')[0]\n        // Append the loaded content to the main container\n        loadedElements.forEach(element => {\n            if (Array.isArray(element)) {\n                console.error(...element)\n            } else {\n                head.append(element)\n            }\n        })\n    }\n\n    /** Called once all external templates have been loaded */\n    _start() {\n        if (this.#startDone === true) return // Don't run this again\n\n        // Listen for url hash changes and process route change\n        window.addEventListener('hashchange', (event) => this._hashChange(event) )\n        // Go to default route if no route in url and if a default is defined or ensure current route is shown\n        this.doRoute()\n        // Events on fully loaded ...\n        document.dispatchEvent(new CustomEvent('uibrouter:loaded'))\n        if (uibuilder) uibuilder.set('uibrouter', 'loaded') // eslint-disable-line no-undef\n\n        this.#startDone = true // Don't run this again\n    }\n\n    /** Called when the URL Hash changes\n     * @param {HashChangeEvent} event URL Hash change event object\n     */\n    _hashChange(event) {\n        // console.log(`[uibrouter] hashchange: ${this.keepHashFromUrl(event.oldURL)} => ${this.keepHashFromUrl(event.newURL)}` )\n        this.doRoute(event)\n    }\n\n    /** Create DOM route content from a route template (internal or external)\n     * Route templates have to be a `<template>` tag with an ID that matches the route id.\n     * @param {string} routeId ID of the route definition to use to create the content\n     * @returns {boolean} True if the route content was created successfully, false otherwise\n     */\n    _createRouteContent(routeId) {\n        const rContent = document.querySelector(`#${routeId}`)\n        if (!rContent) {\n            console.error(`[uibrouter:createRouteContent] No route template found for route selector '#${routeId}'. Does the link url match a defined route id?`)\n            return false\n        }\n        const docFrag = rContent.content.cloneNode(true)\n        // Have to re-apply the scripts to make them run - only for external templates\n        if (this.isRouteExternal(routeId)) this._applyScripts(docFrag)\n        // Create the route wrapper div with data-route attrib\n        const tempContainer = document.createElement('div')\n        tempContainer.dataset.route = routeId\n        tempContainer.append(docFrag)\n        // And finally try to append to the container\n        try {\n            this.routeContainerEl.append(tempContainer)\n        } catch (e) {\n            console.error(`[uibrouter:createRouteContent] Failed to apply route id '${routeId}'. \\n ${e.message}`)\n            return false\n        }\n        return true\n    }\n\n    /** Loads an external HTML file into a `<template>` tag, adding the router id as the template id.\n     *  or returns an error array\n     * @param {routeDefinition} routeDefinition Configuration for a single route\n     * @returns {Promise<HTMLTemplateElement[]|[string,string,number,string]>} A promise that fulfills to an HTMLTemplateElement or an array containing error information\n     */\n    _loadExternal(routeDefinition) {\n        // const id = singleConfig.src.split('/').pop().replace('.html','')\n        const id = routeDefinition.id\n        // @ts-ignore\n        return fetch(routeDefinition.src)\n            .then(response => {\n                // Fetch failed?\n                if (response.ok === false) return [routeDefinition.id, routeDefinition.src, response.status, response.statusText]\n                return response.text()\n            })\n            .then((/** @type {string} */ htmlText) => {\n                if (Array.isArray(htmlText)) return htmlText // if the fetch failed\n\n                // Check to see if template already exists, if so, remove it\n                try {\n                    const chkTemplate = document.querySelector(`#${id}`)\n                    if (chkTemplate) chkTemplate.remove()\n                } catch (e) {}\n\n                const tempContainer = document.createElement('template')\n                tempContainer.innerHTML = htmlText\n                tempContainer.setAttribute('id', id)\n                return tempContainer\n            })\n            .catch(error => {\n                console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${routeDefinition.src}:`, error)\n            })\n    }\n\n    /** Remove/re-apply scripts in a container Element so that they are executed.\n     * @param {HTMLElement} tempContainer HTML Element of container to process\n     */\n    _applyScripts(tempContainer) {\n        const scripts = tempContainer.querySelectorAll('script')\n        scripts.forEach( scr => {\n            const newScript = document.createElement('script')\n            newScript.textContent = scr.innerText\n            tempContainer.append(newScript)\n            scr.remove() // remove the origin\n        })\n    }\n\n    /** Update this.routeIds array from this.config (on start and after add/remove routes) */\n    _updateRouteIds() {\n        this.routeIds = new Set(Object.values(routerConfig.routes).map( r => r.id ))\n    }\n    //#endregion --- ----- --\n\n    /** Process a routing request\n     * @param {PointerEvent|MouseEvent|HashChangeEvent|TouchEvent|string} routeSource Either string containing route id or DOM Event object either click/touch on element containing `href=\"#routeid\"` or Hash URL change event\n     */\n    doRoute(routeSource) {\n        const container = this.routeContainerEl\n        if (!container) throw new Error('[uibrouter:doRoute] Cannot route, has router.setup() been called yet?')\n\n        // Remove all the url and query param text and any leading # - returns '' if no current hash\n        const currentHash = this.keepHashFromUrl(window.location.hash)\n\n        // If no route source provided, take the current hash (which might be '' and that will trigger the default route if defined)\n        if (!routeSource) routeSource = currentHash\n\n        let newRouteId, oldRouteId\n\n        // Define new and old routes depending on different call types\n        if (typeof routeSource === 'string') { // Manually provided route id\n            // console.log(`[uibrouter:doRoute] manual: ${currentHash} => ${this.keepHashFromUrl(routeSource)}. Current: ${currentHash}` )\n            newRouteId = this.keepHashFromUrl(routeSource)\n            oldRouteId = currentHash\n            // If no hash & config has default, set the default as new\n            if (newRouteId === '' && this.config.defaultRoute) newRouteId = this.config.defaultRoute\n            // If the new route id not the same as the current one in the url hash, just change the current hash & exit\n            if (newRouteId !== currentHash ) {\n                window.location.hash = `#${newRouteId}`\n                return\n            }\n        } else if (routeSource.type === 'hashchange') { // A URL Hash change event\n            // console.log(`[uibrouter:doRoute] hashchange: ${this.keepHashFromUrl(routeSource.oldURL)} => ${this.keepHashFromUrl(routeSource.newURL)}. Current: ${currentHash}` )\n            const newUrl = routeSource.newURL\n            // Check if URL actually contains a #\n            if (newUrl.includes('#')) {\n                oldRouteId = this.keepHashFromUrl(routeSource.oldURL)\n                newRouteId = this.keepHashFromUrl(newUrl) // Only keep anything after the # & ignoring query params\n            } else return\n        } else { // A mouse click/touch event on a dom element with an href attribute\n            oldRouteId = currentHash\n            // Try to get the route name from the URL hash\n            try {\n                newRouteId = this.keepHashFromUrl(routeSource.target.attributes.href.value) // Only keep anything after the # & ignoring query params\n            } catch (e) {\n                throw new Error('[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute')\n            }\n        }\n\n        let routeShown = false\n\n        // If no defined valid route, undo and throw error\n        if (!newRouteId || !this.routeIds.has(newRouteId)) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            throw new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${newRouteId}'`)\n        }\n\n        // Show the new container (replace or show)\n        if (this.config.hide) {\n            // config.hide = true so hide previous contents\n            if (oldRouteId) {\n                /** @type {HTMLElement|null} */\n                const oldContent = document.querySelector(`div[data-route=\"${oldRouteId}\"]`)\n                if (oldContent) oldContent.style.display = 'none'\n            }\n            /** and unhide new route if possible @type {HTMLElement|null} */\n            const content = document.querySelector(`div[data-route=\"${newRouteId}\"]`)\n            if (content) {\n                content.style.removeProperty('display')\n                routeShown = true\n            } else {\n                // else create new content from template\n                routeShown = this._createRouteContent(newRouteId)\n            }\n        } else {\n            // config.hide != true so remove previous contents\n            container.replaceChildren()\n            // Create new content from template\n            routeShown = this._createRouteContent(newRouteId)\n        }\n\n        // console.log({ newRouteId, oldRouteId, currentHash, routeShown })\n\n        // Roll back the route change if the new route cannot be shown\n        if (routeShown === false) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            return\n        }\n\n        // Retain current and previous route id's\n        this.currentRouteId = newRouteId\n        this.previousRouteId = oldRouteId\n\n        // Record the current route on the route container\n        container.dataset.currentRoute = newRouteId\n\n        // Update any existing HTML menu items\n        this.setCurrentMenuItems()\n\n        // Events on route changed ...\n        document.dispatchEvent(new CustomEvent('uibrouter:route-changed', { detail: { newRouteId, oldRouteId } }))\n        if (uibuilder) {\n            uibuilder.set('uibrouter', 'route changed')\n            uibuilder.set('uibrouter_CurrentRoute', newRouteId)\n            uibuilder.set('uibrouter_CurrentTitle', this.routeTitle())\n            uibuilder.set('uibrouter_CurrentDescription', this.routeDescription())\n            uibuilder.set('uibrouter_CurrentDetails', this.getRouteConfigById(newRouteId))\n        }\n    }\n\n    /** Return a route config given a route id (returns undefined if route not found)\n     * @param {string} routeId Route ID to search for\n     * @returns {routeDefinition|undefined} Route config for found id else undefined\n     */\n    getRouteConfigById(routeId) {\n        return Object.values(this.config.routes).filter(r => r.id === routeId)[0]\n    }\n\n    /** Return true if the given route is external, false otherwise\n     * Used to correctly (re)apply script tags when cloning the template to the DOM (createRouteContent)\n     * @param {string} routeId Route ID to check\n     * @returns {boolean} True if the given route is external, false otherwise\n     */\n    isRouteExternal(routeId) {\n        const routeConfig = this.getRouteConfigById(routeId)\n        return !!(routeConfig && routeConfig.type === 'url')\n    }\n\n    /** Go to the default route if it has been specified */\n    defaultRoute() {\n        if (this.config.defaultRoute) this.doRoute(this.config.defaultRoute)\n    }\n\n    /** Remove the hash from the browser URL */\n    removeHash() {\n        history.pushState('', document.title, window.location.pathname + window.location.search)\n    }\n\n    /** Empty the current container and remove url hash - does not trigger a route change */\n    noRoute() {\n        this.removeHash()\n        this.routeContainerEl.replaceChildren()\n    }\n\n    /** Only keep anything after the # & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Return an array of route ids (to facilitate creation of menus)\n     * @param {boolean} returnHash If true, returns id's with leading `#` to apply to href attributes else returns the id\n     * @returns {string[]} Array of route id's or route url hashes\n     */\n    routeList(returnHash) {\n        if (returnHash === true) return this.routeIds.map((r) => returnHash === true ? `#${r.id}` : r.id)\n        return this.routeIds\n    }\n\n    /** Add new route definitions to the existing ones\n     * @param {routeDefinition|routeDefinition[]} routeDefn Single or array of route definitions to add\n     */\n    addRoutes(routeDefn) {\n        if (!Array.isArray(routeDefn)) routeDefn = [routeDefn]\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routeDefn).filter(r => r.type && r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded - Add new routes to config\n                this.config.routes.push(...routeDefn)\n                // and update the routeIds list\n                this._updateRouteIds()\n                // Let everyone know it all finished\n                document.dispatchEvent(new CustomEvent('uibrouter:routes-added', { detail: routeDefn }))\n                if (uibuilder) uibuilder.set('uibrouter', 'routes added') // eslint-disable-line no-undef, promise/always-return\n            } )\n    }\n\n    //#region --- utils for page display & processing ---\n    setCurrentMenuItems() {\n        // const items = document.querySelectorAll(`li[data-route=\"${this.currentRouteId}\"]`)\n        const items = document.querySelectorAll('li[data-route]')\n        items.forEach( item => {\n            if (item.dataset.route === this.currentRouteId) {\n                item.classList.add('currentRoute')\n                item.setAttribute('aria-current', 'page')\n            } else {\n                item.classList.remove('currentRoute')\n                item.removeAttribute('aria-current')\n            }\n        })\n    }\n\n    routeTitle() {\n        const thisRoute = this.currentRoute() || {}\n        return thisRoute.title || thisRoute.id || '[ROUTE NOT FOUND]'\n    }\n\n    routeDescription() {\n        const thisRoute = this.currentRoute() || {}\n        return thisRoute.description || thisRoute.id || '[ROUTE NOT FOUND]'\n    }\n\n    currentRoute() {\n        return this.getRouteConfigById(this.currentRouteId)\n    }\n    //#endregion ---- ----- ----\n\n    // TODO\n    // deleteRoutes(aRoutes) {\n    //     // Delete all if no list provided\n    //     if (!aRoutes) aRoutes = this.config.routes\n    //     if (!Array.isArray(aRoutes)) aRoutes = [aRoutes]\n    //     console.log('to be deleted', this.config.routes.filter(r => aRoutes.includes(r.id)))\n    //     console.log('to be retained', this.config.routes.filter(r => !aRoutes.includes(r.id)))\n\n    //     // TODO actually remove the unwanted route templates\n    //     // TODO remove from the config: this.config.routes = this.config.routes.filter(r => !aRoutes.includes(r.id))\n\n    //     // ? Optional future upgrade - attempt to also remove any links to this route?\n    // }\n\n    // TODO\n    // deleteTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO delete\n    //     } )\n    // }\n\n    // TODO\n    // reloadTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO reload\n    //     } )\n    // }\n} // ---- End of class ----\n\n// For use in ESM loads\nexport { UibRouter }\nexport default UibRouter\n\n// Auto-assign for when the library is loaded via a script tag\nif (!window['UibRouter']) {\n    window['UibRouter'] = UibRouter\n} else {\n    console.warn('`UibRouter` already assigned to window. Have you tried to load it more than once?')\n}\n"],
-  "mappings": 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+  "sourcesContent": ["/* eslint-disable no-undef */\n// @ts-nocheck\n/** A simple, vanilla JavaScript front-end router class\n * Included in node-red-contrib-uibuilder but is not dependent on it.\n * May be used in other contexts as desired.\n * \n * Copyright (c) 2023-2023 Julian Knight (Totally Information)\n * https://it.knightnet.org.uk\n *\n * Licensed under the Apache License, Version 2.0 (the 'License');\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an 'AS IS' BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/** Type definitions\n * routeDefinition\n * @typedef {object} routeDefinition Single route configuration\n * @property {string} id REQUIRED. Route ID\n * @property {string} src REQUIRED. CSS Selector for template tag routes, url for external routes\n * @property {\"url\"|undefined} [type] OPTIONAL. \"url\" for external routes\n * @property {string} [title] OPTIONAL. Text to use as a short title for the route\n * @property {string} [description] OPTIONAL. Text to use as a long description for the route\n * UibRouterConfig\n * @typedef {object} UibRouterConfig Configuration for the UiBRouter class instances\n * @property {routeDefinition[]} routes REQUIRED. Array of route definitions\n * @property {string} [defaultRoute] OPTIONAL. If set to a route id, that route will be automatically shown on load\n * @property {string} [routeContainer] OPTIONAL. CSS Selector for an HTML Element containing routes\n * @property {boolean} [hide] OPTIONAL. If TRUE, routes will be hidden/shown on change instead of removed/added\n * @property {boolean} [unload] OPTIONAL. If TRUE, route templates will be unloaded from DOM after access. Only useful with the `hide` option\n */\n\nclass UibRouter { // eslint-disable-line no-unused-vars\n    //#region --- Variables ---\n    /** Class version */\n    static version = '1.0.1'\n\n    /** Configuration settings @type {UibRouterConfig} */\n    config\n    /** Reference to the container DOM element - set in setup() @type {HTMLDivElement} */\n    routeContainerEl\n    /** The current route id after doRoute() has been called */\n    currentRouteId\n    /** The previous route id after doRoute() has been called */\n    previousRouteId\n    /** Array of route ID's (created in constructor) */\n    routeIds = []\n\n    /** Internal only. Set to true when the _start() method has been called */\n    #startDone = false\n    //#endregion --- ----- ---\n\n    //#region --- Internal Methods ---\n    /** Class constructor\n     * @param {UibRouterConfig} routerConfig Configuration object\n     */\n    constructor(routerConfig) {\n        // Fetch is on desktop browsers since 2017 at latest. Not so much on mobile (Android!)\n        // May need a polyfill on mobile or old browsers.\n        if (!fetch) throw new Error('[uibrouter:constructor] UibRouter requires `fetch`. Please use a current browser or load a fetch polyfill.')\n\n        if (!routerConfig) throw new Error('[uibrouter:constructor] No config provided')\n        if (!routerConfig.routes) throw new Error('[uibrouter:constructor] No routes provided in routerConfig')\n        // Add a default route container uf needed\n        if (!routerConfig.routeContainer)routerConfig.routeContainer = '#uibroutecontainer'\n\n        // Save the config\n        this.config = routerConfig\n        // If no default set in config, set to the first entry\n        if (!this.config.defaultRoute && this.config.routes[0] && this.config.routes[0].id) this.config.defaultRoute = this.config.routes[0].id\n        // Create/access the route container element, sets this.routeContainerEl\n        this._setRouteContainer()\n\n        this._updateRouteIds()\n\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routerConfig.routes).filter(r => r.type && r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded so we can start\n                this._start()\n            } )\n    }\n\n    /** Save a reference to, and create if necessary, the HTML element to hold routes */\n    _setRouteContainer() {\n        const body = document.getElementsByTagName('body')[0]\n        // Get reference to route container or create it\n        let routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        if (!routeContainerEl) {\n            // throw new Error(`Route container element with CSS selector '${routerConfig.routeContainer}' not found in HTML`)\n            const tempContainer = document.createElement('div')\n            tempContainer.setAttribute('id', this.config.routeContainer.replace('#', ''))\n            body.append(tempContainer)\n            routeContainerEl = this.routeContainerEl = document.querySelector(this.config.routeContainer)\n        }\n    }\n\n    /** Load fetched external elements to templates tags under the head tag\n     * @param {HTMLElement[]} loadedElements Array of loaded external elements to add as templates to the head tag\n     */\n    _appendExternalTemplates(loadedElements) {\n        const head = document.getElementsByTagName('head')[0]\n        // Append the loaded content to the main container\n        loadedElements.forEach(element => {\n            if (Array.isArray(element)) {\n                console.error(...element)\n            } else {\n                head.append(element)\n            }\n        })\n    }\n\n    /** Called once all external templates have been loaded */\n    _start() {\n        if (this.#startDone === true) return // Don't run this again\n\n        // Listen for url hash changes and process route change\n        window.addEventListener('hashchange', (event) => this._hashChange(event) )\n        // Go to default route if no route in url and if a default is defined or ensure current route is shown\n        this.doRoute()\n        // Events on fully loaded ...\n        document.dispatchEvent(new CustomEvent('uibrouter:loaded'))\n        if (uibuilder) uibuilder.set('uibrouter', 'loaded') // eslint-disable-line no-undef\n\n        this.#startDone = true // Don't run this again\n    }\n\n    /** Called when the URL Hash changes\n     * @param {HashChangeEvent} event URL Hash change event object\n     */\n    _hashChange(event) {\n        // console.log(`[uibrouter] hashchange: ${this.keepHashFromUrl(event.oldURL)} => ${this.keepHashFromUrl(event.newURL)}` )\n        this.doRoute(event)\n    }\n\n    /** Create DOM route content from a route template (internal or external)\n     * Route templates have to be a `<template>` tag with an ID that matches the route id.\n     * @param {string} routeId ID of the route definition to use to create the content\n     * @returns {boolean} True if the route content was created successfully, false otherwise\n     */\n    _createRouteContent(routeId) {\n        const rContent = document.querySelector(`#${routeId}`)\n        if (!rContent) {\n            console.error(`[uibrouter:createRouteContent] No route template found for route selector '#${routeId}'. Does the link url match a defined route id?`)\n            return false\n        }\n        const docFrag = rContent.content.cloneNode(true)\n        // Have to re-apply the scripts to make them run - only for external templates\n        if (this.isRouteExternal(routeId)) this._applyScripts(docFrag)\n        // Create the route wrapper div with data-route attrib\n        const tempContainer = document.createElement('div')\n        tempContainer.dataset.route = routeId\n        tempContainer.append(docFrag)\n        // And finally try to append to the container\n        try {\n            this.routeContainerEl.append(tempContainer)\n        } catch (e) {\n            console.error(`[uibrouter:createRouteContent] Failed to apply route id '${routeId}'. \\n ${e.message}`)\n            return false\n        }\n        return true\n    }\n\n    /** Loads an external HTML file into a `<template>` tag, adding the router id as the template id.\n     *  or returns an error array\n     * @param {routeDefinition} routeDefinition Configuration for a single route\n     * @returns {Promise<HTMLTemplateElement[]|[string,string,number,string]>} A promise that fulfills to an HTMLTemplateElement or an array containing error information\n     */\n    _loadExternal(routeDefinition) {\n        // const id = singleConfig.src.split('/').pop().replace('.html','')\n        const id = routeDefinition.id\n        // @ts-ignore\n        return fetch(routeDefinition.src)\n            .then(response => {\n                // Fetch failed?\n                if (response.ok === false) return [routeDefinition.id, routeDefinition.src, response.status, response.statusText]\n                return response.text()\n            })\n            .then((/** @type {string} */ htmlText) => {\n                if (Array.isArray(htmlText)) return htmlText // if the fetch failed\n\n                // Check to see if template already exists, if so, remove it\n                try {\n                    const chkTemplate = document.querySelector(`#${id}`)\n                    if (chkTemplate) chkTemplate.remove()\n                } catch (e) {}\n\n                const tempContainer = document.createElement('template')\n                tempContainer.innerHTML = htmlText\n                tempContainer.setAttribute('id', id)\n                return tempContainer\n            })\n            .catch(error => {\n                console.error(`[uibrouter:loadHTML] Error loading route template HTML from ${routeDefinition.src}:`, error)\n            })\n    }\n\n    /** Remove/re-apply scripts in a container Element so that they are executed.\n     * @param {HTMLElement} tempContainer HTML Element of container to process\n     */\n    _applyScripts(tempContainer) {\n        const scripts = tempContainer.querySelectorAll('script')\n        scripts.forEach( scr => {\n            const newScript = document.createElement('script')\n            newScript.textContent = scr.innerText\n            tempContainer.append(newScript)\n            scr.remove() // remove the origin\n        })\n    }\n\n    /** Update this.routeIds array from this.config (on start and after add/remove routes) */\n    _updateRouteIds() {\n        this.routeIds = new Set(Object.values(routerConfig.routes).map( r => r.id ))\n    }\n    //#endregion --- ----- --\n\n    /** Process a routing request\n     * @param {PointerEvent|MouseEvent|HashChangeEvent|TouchEvent|string} routeSource Either string containing route id or DOM Event object either click/touch on element containing `href=\"#routeid\"` or Hash URL change event\n     */\n    doRoute(routeSource) {\n        if (!routeSource) routeSource = this.config.defaultRoute\n\n        const container = this.routeContainerEl\n        if (!container) throw new Error('[uibrouter:doRoute] Cannot route, has router.setup() been called yet?')\n\n        // Remove all the url and query param text and any leading # - returns '' if no current hash\n        const currentHash = this.keepHashFromUrl(window.location.hash)\n\n        // If no route source provided, take the current hash (which might be '' and that will trigger the default route if defined)\n        if (!routeSource) routeSource = currentHash\n\n        let newRouteId, oldRouteId\n\n        // Define new and old routes depending on different call types\n        if (typeof routeSource === 'string') { // Manually provided route id\n            // console.log(`[uibrouter:doRoute] manual: ${currentHash} => ${this.keepHashFromUrl(routeSource)}. Current: ${currentHash}` )\n            newRouteId = this.keepHashFromUrl(routeSource)\n            oldRouteId = currentHash\n            // If no hash & config has default, set the default as new\n            if (newRouteId === '' && this.config.defaultRoute) newRouteId = this.config.defaultRoute\n            // If the new route id not the same as the current one in the url hash, just change the current hash & exit\n            if (newRouteId !== currentHash ) {\n                window.location.hash = `#${newRouteId}`\n                return\n            }\n        } else if (routeSource.type === 'hashchange') { // A URL Hash change event\n            // console.log(`[uibrouter:doRoute] hashchange: ${this.keepHashFromUrl(routeSource.oldURL)} => ${this.keepHashFromUrl(routeSource.newURL)}. Current: ${currentHash}` )\n            const newUrl = routeSource.newURL\n            // Check if URL actually contains a #\n            if (newUrl.includes('#')) {\n                oldRouteId = this.keepHashFromUrl(routeSource.oldURL)\n                newRouteId = this.keepHashFromUrl(newUrl) // Only keep anything after the # & ignoring query params\n            } else return\n        } else { // A mouse click/touch event on a dom element with an href attribute\n            oldRouteId = currentHash\n            // Try to get the route name from the URL hash\n            try {\n                newRouteId = this.keepHashFromUrl(routeSource.target.attributes.href.value) // Only keep anything after the # & ignoring query params\n            } catch (e) {\n                throw new Error('[uibrouter:doRoute] No valid route found. Event.target does not have an href attribute')\n            }\n        }\n\n        let routeShown = false\n\n        // If no defined valid route, undo and throw error\n        if (!newRouteId || !this.routeIds.has(newRouteId)) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            throw new Error(`[uibrouter:doRoute] No valid route found. Either pass a valid route name or an event from an element having an href of '#routename'. Route id requested: '${newRouteId}'`)\n        }\n\n        // Show the new container (replace or show)\n        if (this.config.hide) {\n            // config.hide = true so hide previous contents\n            if (oldRouteId) {\n                /** @type {HTMLElement|null} */\n                const oldContent = document.querySelector(`div[data-route=\"${oldRouteId}\"]`)\n                if (oldContent) oldContent.style.display = 'none'\n            }\n            /** and unhide new route if possible @type {HTMLElement|null} */\n            const content = document.querySelector(`div[data-route=\"${newRouteId}\"]`)\n            if (content) {\n                content.style.removeProperty('display')\n                routeShown = true\n            } else {\n                // else create new content from template\n                routeShown = this._createRouteContent(newRouteId)\n            }\n        } else {\n            // config.hide != true so remove previous contents\n            container.replaceChildren()\n            // Create new content from template\n            routeShown = this._createRouteContent(newRouteId)\n        }\n\n        // console.log({ newRouteId, oldRouteId, currentHash, routeShown })\n\n        // Roll back the route change if the new route cannot be shown\n        if (routeShown === false) {\n            // Events on route change fail ...\n            document.dispatchEvent(new CustomEvent('uibrouter:route-change-failed', { detail: { newRouteId, oldRouteId } }))\n            if (uibuilder) uibuilder.set('uibrouter', 'route change failed') // eslint-disable-line no-undef\n\n            window.location.hash = oldRouteId ? `#${oldRouteId}` : ''\n            return\n        }\n\n        // Retain current and previous route id's\n        this.currentRouteId = newRouteId\n        this.previousRouteId = oldRouteId\n\n        // Record the current route on the route container\n        container.dataset.currentRoute = newRouteId\n\n        // Update any existing HTML menu items\n        this.setCurrentMenuItems()\n\n        // Events on route changed ...\n        document.dispatchEvent(new CustomEvent('uibrouter:route-changed', { detail: { newRouteId, oldRouteId } }))\n        if (uibuilder) {\n            uibuilder.set('uibrouter', 'route changed')\n            uibuilder.set('uibrouter_CurrentRoute', newRouteId)\n            uibuilder.set('uibrouter_CurrentTitle', this.routeTitle())\n            uibuilder.set('uibrouter_CurrentDescription', this.routeDescription())\n            uibuilder.set('uibrouter_CurrentDetails', this.getRouteConfigById(newRouteId))\n        }\n    }\n\n    /** Return a route config given a route id (returns undefined if route not found)\n     * @param {string} routeId Route ID to search for\n     * @returns {routeDefinition|undefined} Route config for found id else undefined\n     */\n    getRouteConfigById(routeId) {\n        return Object.values(this.config.routes).filter(r => r.id === routeId)[0]\n    }\n\n    /** Return true if the given route is external, false otherwise\n     * Used to correctly (re)apply script tags when cloning the template to the DOM (createRouteContent)\n     * @param {string} routeId Route ID to check\n     * @returns {boolean} True if the given route is external, false otherwise\n     */\n    isRouteExternal(routeId) {\n        const routeConfig = this.getRouteConfigById(routeId)\n        return !!(routeConfig && routeConfig.type === 'url')\n    }\n\n    /** Go to the default route if it has been specified */\n    defaultRoute() {\n        if (this.config.defaultRoute) this.doRoute(this.config.defaultRoute)\n    }\n\n    /** Remove the hash from the browser URL */\n    removeHash() {\n        history.pushState('', document.title, window.location.pathname + window.location.search)\n    }\n\n    /** Empty the current container and remove url hash - does not trigger a route change */\n    noRoute() {\n        this.removeHash()\n        this.routeContainerEl.replaceChildren()\n    }\n\n    /** Only keep anything after the # & ignoring query params\n     * @param {string} url URL to extract the hash from\n     * @returns {string} Just the route id\n     */\n    keepHashFromUrl(url) {\n        if (!url) return ''\n        return url.replace(/^.*#(.*)/, '$1').replace(/\\?.*$/, '')\n    }\n\n    /** Return an array of route ids (to facilitate creation of menus)\n     * @param {boolean} returnHash If true, returns id's with leading `#` to apply to href attributes else returns the id\n     * @returns {string[]} Array of route id's or route url hashes\n     */\n    routeList(returnHash) {\n        if (returnHash === true) return this.routeIds.map((r) => returnHash === true ? `#${r.id}` : r.id)\n        return this.routeIds\n    }\n\n    /** Add new route definitions to the existing ones\n     * @param {routeDefinition|routeDefinition[]} routeDefn Single or array of route definitions to add\n     */\n    addRoutes(routeDefn) {\n        if (!Array.isArray(routeDefn)) routeDefn = [routeDefn]\n        // Load all external route templates async in parallel - NB: Object.values works on both arrays and objects\n        // Note that final `then` is called even if no external routes are given\n        Promise.all(Object.values(routeDefn).filter(r => r.type && r.type === 'url').map(this._loadExternal)) // eslint-disable-line promise/catch-or-return\n            .then(this._appendExternalTemplates)\n            .then( () => { // eslint-disable-line promise/always-return\n                // Everything is loaded - Add new routes to config\n                this.config.routes.push(...routeDefn)\n                // and update the routeIds list\n                this._updateRouteIds()\n                // Let everyone know it all finished\n                document.dispatchEvent(new CustomEvent('uibrouter:routes-added', { detail: routeDefn }))\n                if (uibuilder) uibuilder.set('uibrouter', 'routes added') // eslint-disable-line no-undef, promise/always-return\n            } )\n    }\n\n    //#region --- utils for page display & processing ---\n    setCurrentMenuItems() {\n        // const items = document.querySelectorAll(`li[data-route=\"${this.currentRouteId}\"]`)\n        const items = document.querySelectorAll('li[data-route]')\n        items.forEach( item => {\n            if (item.dataset.route === this.currentRouteId) {\n                item.classList.add('currentRoute')\n                item.setAttribute('aria-current', 'page')\n            } else {\n                item.classList.remove('currentRoute')\n                item.removeAttribute('aria-current')\n            }\n        })\n    }\n\n    routeTitle() {\n        const thisRoute = this.currentRoute() || {}\n        return thisRoute.title || thisRoute.id || '[ROUTE NOT FOUND]'\n    }\n\n    routeDescription() {\n        const thisRoute = this.currentRoute() || {}\n        return thisRoute.description || thisRoute.id || '[ROUTE NOT FOUND]'\n    }\n\n    currentRoute() {\n        return this.getRouteConfigById(this.currentRouteId)\n    }\n    //#endregion ---- ----- ----\n\n    // TODO\n    // deleteRoutes(aRoutes) {\n    //     // Delete all if no list provided\n    //     if (!aRoutes) aRoutes = this.config.routes\n    //     if (!Array.isArray(aRoutes)) aRoutes = [aRoutes]\n    //     console.log('to be deleted', this.config.routes.filter(r => aRoutes.includes(r.id)))\n    //     console.log('to be retained', this.config.routes.filter(r => !aRoutes.includes(r.id)))\n\n    //     // TODO actually remove the unwanted route templates\n    //     // TODO remove from the config: this.config.routes = this.config.routes.filter(r => !aRoutes.includes(r.id))\n\n    //     // ? Optional future upgrade - attempt to also remove any links to this route?\n    // }\n\n    // TODO\n    // deleteTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO delete\n    //     } )\n    // }\n\n    // TODO\n    // reloadTemplates(templateIds) {\n    //     if (!Array.isArray(templateIds)) templateIds = [templateIds]\n    //     templateIds.forEach( templateid => {\n    //         // TODO reload\n    //     } )\n    // }\n} // ---- End of class ----\n\n// For use in ESM loads\nexport { UibRouter }\nexport default UibRouter\n\n// Auto-assign for when the library is loaded via a script tag\nif (!window['UibRouter']) {\n    window['UibRouter'] = UibRouter\n} else {\n    console.warn('`UibRouter` already assigned to window. Have you tried to load it more than once?')\n}\n"],
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   "names": ["_startDone", "UibRouter", "routerConfig", "__publicField", "__privateAdd", "r", "body", "routeContainerEl", "tempContainer", "loadedElements", "head", "element", "__privateGet", "event", "__privateSet", "routeId", "rContent", "docFrag", "e", "routeDefinition", "id", "response", "htmlText", "chkTemplate", "error", "scr", "newScript", "routeSource", "container", "currentHash", "newRouteId", "oldRouteId", "newUrl", "routeShown", "oldContent", "content", "routeConfig", "url", "returnHash", "routeDefn", "item", "thisRoute", "uibrouter_default", "UibRouter"]
 }
diff --git a/src/front-end-module/uibrouter.js b/src/front-end-module/uibrouter.js
index 6fff9e69..45b96dbb 100644
--- a/src/front-end-module/uibrouter.js
+++ b/src/front-end-module/uibrouter.js
@@ -73,6 +73,8 @@ class UibRouter { // eslint-disable-line no-unused-vars
 
         // Save the config
         this.config = routerConfig
+        // If no default set in config, set to the first entry
+        if (!this.config.defaultRoute && this.config.routes[0] && this.config.routes[0].id) this.config.defaultRoute = this.config.routes[0].id
         // Create/access the route container element, sets this.routeContainerEl
         this._setRouteContainer()
 
@@ -225,6 +227,8 @@ class UibRouter { // eslint-disable-line no-unused-vars
      * @param {PointerEvent|MouseEvent|HashChangeEvent|TouchEvent|string} routeSource Either string containing route id or DOM Event object either click/touch on element containing `href="#routeid"` or Hash URL change event
      */
     doRoute(routeSource) {
+        if (!routeSource) routeSource = this.config.defaultRoute
+
         const container = this.routeContainerEl
         if (!container) throw new Error('[uibrouter:doRoute] Cannot route, has router.setup() been called yet?')
 

From 7a503068204f4ba6e0cf127a270eeeab53c7aa39 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Sun, 31 Dec 2023 13:48:53 +0000
Subject: [PATCH 63/78] Re-organise and rename

---
 .../Web Component - uib-var.json}             |   0
 .../low-code-report-builder.json              |   0
 .../no-code-examples.json}                    |   0
 examples/{ => Node Examples}/uib-cache.json   |   0
 examples/{ => Node Examples}/uib-html         |   0
 examples/{ => Node Examples}/uib-save.json    |   0
 examples/{ => Node Examples}/uib-sender.json  |   0
 examples/{ => Node Examples}/uib-tag.json     |   0
 ...quick-start.json => Quick Start Flow.json} |   0
 ...ote-commands.json => Remote Commands.json} |   0
 examples/{simple.json => Simple Flow.json}    |   0
 ...{templates.json => Template Examples.json} |   0
 examples/Text Update - Different Methods      | 930 ++++++++++++++++++
 13 files changed, 930 insertions(+)
 rename examples/{uib-var-web-component.json => Client-side code/Web Component - uib-var.json} (100%)
 rename examples/{ => Low-code}/low-code-report-builder.json (100%)
 rename examples/{zero-code.json => No-code/no-code-examples.json} (100%)
 rename examples/{ => Node Examples}/uib-cache.json (100%)
 rename examples/{ => Node Examples}/uib-html (100%)
 rename examples/{ => Node Examples}/uib-save.json (100%)
 rename examples/{ => Node Examples}/uib-sender.json (100%)
 rename examples/{ => Node Examples}/uib-tag.json (100%)
 rename examples/{quick-start.json => Quick Start Flow.json} (100%)
 rename examples/{remote-commands.json => Remote Commands.json} (100%)
 rename examples/{simple.json => Simple Flow.json} (100%)
 rename examples/{templates.json => Template Examples.json} (100%)
 create mode 100644 examples/Text Update - Different Methods

diff --git a/examples/uib-var-web-component.json b/examples/Client-side code/Web Component - uib-var.json
similarity index 100%
rename from examples/uib-var-web-component.json
rename to examples/Client-side code/Web Component - uib-var.json
diff --git a/examples/low-code-report-builder.json b/examples/Low-code/low-code-report-builder.json
similarity index 100%
rename from examples/low-code-report-builder.json
rename to examples/Low-code/low-code-report-builder.json
diff --git a/examples/zero-code.json b/examples/No-code/no-code-examples.json
similarity index 100%
rename from examples/zero-code.json
rename to examples/No-code/no-code-examples.json
diff --git a/examples/uib-cache.json b/examples/Node Examples/uib-cache.json
similarity index 100%
rename from examples/uib-cache.json
rename to examples/Node Examples/uib-cache.json
diff --git a/examples/uib-html b/examples/Node Examples/uib-html
similarity index 100%
rename from examples/uib-html
rename to examples/Node Examples/uib-html
diff --git a/examples/uib-save.json b/examples/Node Examples/uib-save.json
similarity index 100%
rename from examples/uib-save.json
rename to examples/Node Examples/uib-save.json
diff --git a/examples/uib-sender.json b/examples/Node Examples/uib-sender.json
similarity index 100%
rename from examples/uib-sender.json
rename to examples/Node Examples/uib-sender.json
diff --git a/examples/uib-tag.json b/examples/Node Examples/uib-tag.json
similarity index 100%
rename from examples/uib-tag.json
rename to examples/Node Examples/uib-tag.json
diff --git a/examples/quick-start.json b/examples/Quick Start Flow.json
similarity index 100%
rename from examples/quick-start.json
rename to examples/Quick Start Flow.json
diff --git a/examples/remote-commands.json b/examples/Remote Commands.json
similarity index 100%
rename from examples/remote-commands.json
rename to examples/Remote Commands.json
diff --git a/examples/simple.json b/examples/Simple Flow.json
similarity index 100%
rename from examples/simple.json
rename to examples/Simple Flow.json
diff --git a/examples/templates.json b/examples/Template Examples.json
similarity index 100%
rename from examples/templates.json
rename to examples/Template Examples.json
diff --git a/examples/Text Update - Different Methods b/examples/Text Update - Different Methods
new file mode 100644
index 00000000..2519826d
--- /dev/null
+++ b/examples/Text Update - Different Methods	
@@ -0,0 +1,930 @@
+[
+    {
+        "id": "36e46a8812418a38",
+        "type": "tab",
+        "label": "Text Updates",
+        "disabled": false,
+        "info": "This tab contains an example uibuilder node\r\nalong with several example methods for\r\nupdating on-page text in your web pages.",
+        "env": []
+    },
+    {
+        "id": "a2a4f9ce8175afa5",
+        "type": "group",
+        "z": "36e46a8812418a38",
+        "name": "Setup",
+        "style": {
+            "fill": "#ffffbf",
+            "fill-opacity": "0.12",
+            "label": true,
+            "color": "#000000"
+        },
+        "nodes": [
+            "60a8489436d0ee43",
+            "ff050c4347776e67",
+            "86ffc76eb5838f6c",
+            "d5ffe9a264b1c424",
+            "73283e35f23ba905",
+            "e8b79e0479ad07fb",
+            "11c34f35abc00f11",
+            "475a22b945acf2c3",
+            "59e22173849a0305"
+        ],
+        "x": 74,
+        "y": 179,
+        "w": 812,
+        "h": 162
+    },
+    {
+        "id": "86fa2a8ae6f5f32e",
+        "type": "group",
+        "z": "36e46a8812418a38",
+        "name": "Front-end Code - Run after the uibuilder node has been deployed. \\n Sets up FE code, reloads connected clients.",
+        "style": {
+            "label": true,
+            "stroke": "#a4a4a4",
+            "fill-opacity": "0.33",
+            "color": "#000000",
+            "fill": "#ffffff"
+        },
+        "nodes": [
+            "36b3dea638283be6",
+            "46689bc058b9d4db",
+            "a39bd1d7474cf8ec",
+            "dc323f1cc56a3d6c",
+            "24a49e7875280cc1",
+            "d091b7d37c855385"
+        ],
+        "x": 544,
+        "y": 23,
+        "w": 582,
+        "h": 138
+    },
+    {
+        "id": "59e22173849a0305",
+        "type": "junction",
+        "z": "36e46a8812418a38",
+        "g": "a2a4f9ce8175afa5",
+        "x": 460,
+        "y": 220,
+        "wires": [
+            [
+                "ff050c4347776e67"
+            ]
+        ]
+    },
+    {
+        "id": "60a8489436d0ee43",
+        "type": "debug",
+        "z": "36e46a8812418a38",
+        "g": "a2a4f9ce8175afa5",
+        "name": "uib Std Output",
+        "active": false,
+        "tosidebar": true,
+        "console": false,
+        "tostatus": true,
+        "complete": "true",
+        "targetType": "full",
+        "statusVal": "",
+        "statusType": "counter",
+        "x": 765,
+        "y": 220,
+        "wires": [],
+        "l": false
+    },
+    {
+        "id": "ff050c4347776e67",
+        "type": "uibuilder",
+        "z": "36e46a8812418a38",
+        "g": "a2a4f9ce8175afa5",
+        "name": "",
+        "topic": "",
+        "url": "text-update-egs",
+        "fwdInMessages": false,
+        "allowScripts": false,
+        "allowStyles": false,
+        "copyIndex": true,
+        "templateFolder": "blank",
+        "extTemplate": "",
+        "showfolder": false,
+        "reload": true,
+        "sourceFolder": "src",
+        "deployedVersion": "6.6.0",
+        "showMsgUib": true,
+        "title": "",
+        "descr": "",
+        "x": 620,
+        "y": 260,
+        "wires": [
+            [
+                "60a8489436d0ee43"
+            ],
+            [
+                "86ffc76eb5838f6c",
+                "11c34f35abc00f11"
+            ]
+        ]
+    },
+    {
+        "id": "86ffc76eb5838f6c",
+        "type": "debug",
+        "z": "36e46a8812418a38",
+        "d": true,
+        "g": "a2a4f9ce8175afa5",
+        "name": "uib Control Output",
+        "active": true,
+        "tosidebar": true,
+        "console": false,
+        "tostatus": true,
+        "complete": "true",
+        "targetType": "full",
+        "statusVal": "",
+        "statusType": "counter",
+        "x": 825,
+        "y": 280,
+        "wires": [],
+        "l": false
+    },
+    {
+        "id": "e044ccbbc70ecc60",
+        "type": "inject",
+        "z": "36e46a8812418a38",
+        "name": "Toggle Visible Msgs",
+        "props": [
+            {
+                "p": "_uib",
+                "v": "{\"command\":\"showMsg\"}",
+                "vt": "json"
+            }
+        ],
+        "repeat": "",
+        "crontab": "",
+        "once": false,
+        "onceDelay": 0.1,
+        "topic": "",
+        "x": 190,
+        "y": 60,
+        "wires": [
+            [
+                "6a4c985e0fc73c31"
+            ]
+        ]
+    },
+    {
+        "id": "ad3e6bf13e2c7f15",
+        "type": "inject",
+        "z": "36e46a8812418a38",
+        "name": "Log Lvl 5",
+        "props": [
+            {
+                "p": "_uib",
+                "v": "{\"command\":\"set\",\"prop\":\"logLevel\",\"value\":5}",
+                "vt": "json"
+            }
+        ],
+        "repeat": "",
+        "crontab": "",
+        "once": false,
+        "onceDelay": 0.1,
+        "topic": "",
+        "x": 220,
+        "y": 100,
+        "wires": [
+            [
+                "6a4c985e0fc73c31"
+            ]
+        ]
+    },
+    {
+        "id": "86f9153ff0dc2d04",
+        "type": "inject",
+        "z": "36e46a8812418a38",
+        "name": "Reload",
+        "props": [
+            {
+                "p": "_ui",
+                "v": "{\"method\":\"reload\"}",
+                "vt": "json"
+            },
+            {
+                "p": "topic",
+                "vt": "str"
+            }
+        ],
+        "repeat": "",
+        "crontab": "",
+        "once": false,
+        "onceDelay": 0.1,
+        "topic": "reload",
+        "x": 230,
+        "y": 140,
+        "wires": [
+            [
+                "6a4c985e0fc73c31"
+            ]
+        ],
+        "info": "Sends a pre-formatted msg to the front-end that\r\ncauses the page to reload itself."
+    },
+    {
+        "id": "6a4c985e0fc73c31",
+        "type": "link out",
+        "z": "36e46a8812418a38",
+        "name": "uib ctrls out",
+        "mode": "link",
+        "links": [
+            "b9605e7d0a662387",
+            "d5ffe9a264b1c424"
+        ],
+        "x": 355,
+        "y": 100,
+        "wires": []
+    },
+    {
+        "id": "d5ffe9a264b1c424",
+        "type": "link in",
+        "z": "36e46a8812418a38",
+        "g": "a2a4f9ce8175afa5",
+        "name": "uib-upd-egs - no cache",
+        "links": [
+            "6a4c985e0fc73c31",
+            "45c30769766809e0",
+            "7cf15cdc25847e38",
+            "5c4452e742079f53",
+            "046d41ddfade6f54"
+        ],
+        "x": 325,
+        "y": 220,
+        "wires": [
+            [
+                "59e22173849a0305"
+            ]
+        ]
+    },
+    {
+        "id": "73283e35f23ba905",
+        "type": "link in",
+        "z": "36e46a8812418a38",
+        "g": "a2a4f9ce8175afa5",
+        "name": "uib-upd-egs - cached",
+        "links": [
+            "11c34f35abc00f11",
+            "230b14e3f0320ec0",
+            "d5772ba475aa309a"
+        ],
+        "x": 245,
+        "y": 300,
+        "wires": [
+            [
+                "e8b79e0479ad07fb"
+            ]
+        ]
+    },
+    {
+        "id": "e8b79e0479ad07fb",
+        "type": "uib-cache",
+        "z": "36e46a8812418a38",
+        "g": "a2a4f9ce8175afa5",
+        "cacheall": false,
+        "cacheKey": "topic",
+        "newcache": true,
+        "num": 1,
+        "storeName": "default",
+        "name": "Cache (by topic)",
+        "storeContext": "context",
+        "varName": "uib_cache",
+        "x": 390,
+        "y": 260,
+        "wires": [
+            [
+                "ff050c4347776e67"
+            ]
+        ]
+    },
+    {
+        "id": "11c34f35abc00f11",
+        "type": "link out",
+        "z": "36e46a8812418a38",
+        "g": "a2a4f9ce8175afa5",
+        "name": "link out 64",
+        "mode": "link",
+        "links": [
+            "73283e35f23ba905"
+        ],
+        "x": 765,
+        "y": 300,
+        "wires": []
+    },
+    {
+        "id": "475a22b945acf2c3",
+        "type": "inject",
+        "z": "36e46a8812418a38",
+        "g": "a2a4f9ce8175afa5",
+        "name": "Clear Cache",
+        "props": [
+            {
+                "p": "uibuilderCtrl",
+                "v": "clear cache",
+                "vt": "str"
+            },
+            {
+                "p": "cacheControl",
+                "v": "CLEAR",
+                "vt": "str"
+            }
+        ],
+        "repeat": "",
+        "crontab": "",
+        "once": false,
+        "onceDelay": 0.1,
+        "topic": "",
+        "x": 190,
+        "y": 260,
+        "wires": [
+            [
+                "e8b79e0479ad07fb"
+            ]
+        ]
+    },
+    {
+        "id": "6f9255ce54661e2a",
+        "type": "comment",
+        "z": "36e46a8812418a38",
+        "name": "1) Add this manually to index.html (see inside) - The flow below updates from Node-RED. \\n Also updates the number's CSS Class (using JSONata calculation).",
+        "info": "```html\n<p id=\"div40\">\n    This is some text and I want to tell you \n    that my age is <b id=\"myage\">140</b>.\n    This will be updated direct from Node-RED\n    using a <code>uib-update</code> node.\n</p>\n<p id=\"div41\">\n    This is some more text and I want to tell you \n    that the temperature today is \n    <b id=\"todaytemp\" class=\"error\">-20</b>℃. This will\n    be updated using front-end code in\n    <code>index.js</code>\n</p>\n<p id=\"div42\">\n    <uib-var variable=\"myquote\" type=\"html\">(waiting for quote)</uib-var>\n</p>\n```\n\nDon't forget to also uncomment the line\nthat loads the index.js file if you want\nto play with the next example as well.\n\nWe could, of course, insert this HTML\ndynamically from Node-RED using the \nuib-element node.",
+        "x": 390,
+        "y": 380,
+        "wires": []
+    },
+    {
+        "id": "d3b66a1c8aafb1f4",
+        "type": "uib-update",
+        "z": "36e46a8812418a38",
+        "name": "Update myage span content \\n (#myage css selector)",
+        "topic": "",
+        "mode": "update",
+        "modeSourceType": "update",
+        "cssSelector": "#myage",
+        "cssSelectorType": "str",
+        "slotSourceProp": "payload",
+        "slotSourcePropType": "msg",
+        "attribsSource": "(\t    /* Set the class based on incoming value */\t    $lu := ($number(payload) > 60 ? \"warning\" : \"info\") & \" border\";\t\t    {\"class\": $lu}\t)",
+        "attribsSourceType": "jsonata",
+        "slotPropMarkdown": false,
+        "x": 480,
+        "y": 440,
+        "wires": [
+            [
+                "230b14e3f0320ec0"
+            ]
+        ]
+    },
+    {
+        "id": "a1c5793fee1d129e",
+        "type": "inject",
+        "z": "36e46a8812418a38",
+        "name": "Random myage (note need for \\n topic so that cached correctly)",
+        "props": [
+            {
+                "p": "payload"
+            },
+            {
+                "p": "topic",
+                "vt": "str"
+            }
+        ],
+        "repeat": "",
+        "crontab": "*/1 8-23 * * *",
+        "once": false,
+        "onceDelay": "15",
+        "topic": "update-myage",
+        "payload": "$formatInteger($random() * 100, \"0\")\t",
+        "payloadType": "jsonata",
+        "x": 210,
+        "y": 440,
+        "wires": [
+            [
+                "d3b66a1c8aafb1f4"
+            ]
+        ]
+    },
+    {
+        "id": "230b14e3f0320ec0",
+        "type": "link out",
+        "z": "36e46a8812418a38",
+        "name": "link out 65",
+        "mode": "link",
+        "links": [
+            "73283e35f23ba905"
+        ],
+        "x": 645,
+        "y": 440,
+        "wires": []
+    },
+    {
+        "id": "3aae18802d1de054",
+        "type": "comment",
+        "z": "36e46a8812418a38",
+        "name": "2) Add this manually to index.js (see inside) - it does updates from the front-end instead",
+        "info": "```javascript\nuibuilder.onChange('msg', (msg) => {\n    If (msg.topic === 'todaytemp') {\n        // Use innerHTML if needed\n        $('#todaytemp').innerText = msg.payload\n    }\n})\n```",
+        "x": 380,
+        "y": 500,
+        "wires": []
+    },
+    {
+        "id": "d5772ba475aa309a",
+        "type": "link out",
+        "z": "36e46a8812418a38",
+        "name": "link out 66",
+        "mode": "link",
+        "links": [
+            "73283e35f23ba905"
+        ],
+        "x": 645,
+        "y": 560,
+        "wires": []
+    },
+    {
+        "id": "07cd2f6a6d08658c",
+        "type": "inject",
+        "z": "36e46a8812418a38",
+        "name": "Random todaytemp (note need for \\n topic so that front-end code handles correctly)",
+        "props": [
+            {
+                "p": "payload"
+            },
+            {
+                "p": "topic",
+                "vt": "str"
+            }
+        ],
+        "repeat": "",
+        "crontab": "*/1 8-23 * * *",
+        "once": false,
+        "onceDelay": "15",
+        "topic": "todaytemp",
+        "payload": "$formatInteger($random() * 100 - 50, \"0\")\t",
+        "payloadType": "jsonata",
+        "x": 260,
+        "y": 560,
+        "wires": [
+            [
+                "d5772ba475aa309a"
+            ]
+        ]
+    },
+    {
+        "id": "532ec0e5a5152d88",
+        "type": "inject",
+        "z": "36e46a8812418a38",
+        "name": "Set command",
+        "props": [
+            {
+                "p": "_uib",
+                "v": "{\"command\":\"set\",\"prop\":\"myquote\",\"value\":\"\"}",
+                "vt": "json"
+            }
+        ],
+        "repeat": "",
+        "crontab": "0 8-23 * * *",
+        "once": false,
+        "onceDelay": "15",
+        "topic": "",
+        "x": 160,
+        "y": 700,
+        "wires": [
+            [
+                "1118681bef5c126b"
+            ]
+        ]
+    },
+    {
+        "id": "1118681bef5c126b",
+        "type": "http request",
+        "z": "36e46a8812418a38",
+        "name": "",
+        "method": "GET",
+        "ret": "obj",
+        "paytoqs": "ignore",
+        "url": "https://zenquotes.io/api/random",
+        "tls": "",
+        "persist": false,
+        "proxy": "",
+        "insecureHTTPParser": false,
+        "authType": "",
+        "senderr": false,
+        "headers": [],
+        "x": 330,
+        "y": 700,
+        "wires": [
+            [
+                "b69aa587eb50ae6f"
+            ]
+        ]
+    },
+    {
+        "id": "b69aa587eb50ae6f",
+        "type": "change",
+        "z": "36e46a8812418a38",
+        "name": "Upd set value from web response",
+        "rules": [
+            {
+                "t": "set",
+                "p": "_uib.value",
+                "pt": "msg",
+                "to": "payload[0].h",
+                "tot": "msg"
+            }
+        ],
+        "action": "",
+        "property": "",
+        "from": "",
+        "to": "",
+        "reg": false,
+        "x": 560,
+        "y": 700,
+        "wires": [
+            [
+                "45c30769766809e0"
+            ]
+        ]
+    },
+    {
+        "id": "45c30769766809e0",
+        "type": "link out",
+        "z": "36e46a8812418a38",
+        "name": "link out 67",
+        "mode": "link",
+        "links": [
+            "d5ffe9a264b1c424"
+        ],
+        "x": 745,
+        "y": 700,
+        "wires": []
+    },
+    {
+        "id": "85b05013bc65a8ef",
+        "type": "comment",
+        "z": "36e46a8812418a38",
+        "name": "3) This time, lets use the uib-var front-end component. (We won't cache this one) \\n The uibuilder set command is used to change the variable in the front-end. \\n In this case, we will tell the component to use HTML - see the first comment contents above.",
+        "info": "",
+        "x": 400,
+        "y": 640,
+        "wires": []
+    },
+    {
+        "id": "f8bdfabd783cab21",
+        "type": "inject",
+        "z": "36e46a8812418a38",
+        "name": "Set command",
+        "props": [
+            {
+                "p": "_uib",
+                "v": "{\"command\":\"set\",\"prop\":\"egfilter\",\"value\":100}",
+                "vt": "json"
+            }
+        ],
+        "repeat": "",
+        "crontab": "*/1 8-23 * * *",
+        "once": false,
+        "onceDelay": "15",
+        "topic": "",
+        "x": 160,
+        "y": 840,
+        "wires": [
+            [
+                "7cf15cdc25847e38"
+            ]
+        ]
+    },
+    {
+        "id": "7cf15cdc25847e38",
+        "type": "link out",
+        "z": "36e46a8812418a38",
+        "name": "link out 75",
+        "mode": "link",
+        "links": [
+            "d5ffe9a264b1c424"
+        ],
+        "x": 745,
+        "y": 840,
+        "wires": []
+    },
+    {
+        "id": "a61cbcfc65c601b3",
+        "type": "comment",
+        "z": "36e46a8812418a38",
+        "name": "4) Use the uib-var front-end component to apply a JavaScript `filter` function before display. (We won't cache this one) \\n The uibuilder set command is used to change the variable in the front-end. \\n Example filter sets # Decimal Places. Default is 0.",
+        "info": "",
+        "x": 470,
+        "y": 780,
+        "wires": []
+    },
+    {
+        "id": "36b3dea638283be6",
+        "type": "inject",
+        "z": "36e46a8812418a38",
+        "g": "86fa2a8ae6f5f32e",
+        "name": "",
+        "props": [
+            {
+                "p": "topic",
+                "vt": "str"
+            }
+        ],
+        "repeat": "",
+        "crontab": "",
+        "once": false,
+        "onceDelay": 0.1,
+        "topic": "setup all FE files",
+        "x": 605,
+        "y": 80,
+        "wires": [
+            [
+                "24a49e7875280cc1",
+                "d091b7d37c855385"
+            ]
+        ],
+        "l": false
+    },
+    {
+        "id": "46689bc058b9d4db",
+        "type": "template",
+        "z": "36e46a8812418a38",
+        "g": "86fa2a8ae6f5f32e",
+        "name": "index.html",
+        "field": "payload",
+        "fieldType": "msg",
+        "format": "html",
+        "syntax": "plain",
+        "template": "<!doctype html>\n<html lang=\"en\"><head>\n\n    <meta charset=\"utf-8\">\n    <meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">\n    <link rel=\"icon\" href=\"../uibuilder/images/node-blue.ico\">\n\n    <title>Updating text examples - Node-RED uibuilder</title>\n    <meta name=\"description\" content=\"Node-RED uibuilder - Updating text examples\">\n\n    <!-- Your own CSS (defaults to loading uibuilders css)-->\n    <link type=\"text/css\" rel=\"stylesheet\" href=\"./index.css\" media=\"all\">\n\n    <!-- #region Supporting Scripts. These MUST be in the right order. Note no leading / -->\n    <script>\n        // Some filter functions - these attach to the globalThis (AKA window) context\n        lang = () => navigator.language\n        yen = (v) => uibuilder.formatNumber( v, 2, 'ja-JP', { style: 'currency', currency: 'JPY' } )\n        mything = {\n            myfunc: function myfunc(x, y, z) {\n                return `\"x: ${x}, y: ${y}, z: ${z}\"`\n            }\n        }\n        const xxxx = 'xxxx'\n        globalThis.yyyy = 'yyyy'\n    </script>\n    <script defer src=\"../uibuilder/uibuilder.iife.min.js\"></script>\n    <script defer src=\"./index.js\">/* OPTIONAL: Put your custom code in that */</script>\n    <!-- #endregion -->\n\n</head><body class=\"uib\">\n    \n    <h1 class=\"with-subtitle\">Different ways of updating UI text</h1>\n    <div role=\"doc-subtitle\">Using the UIBUILDER IIFE library.</div>\n\n    <div id=\"more\"><!-- '#more' is used as a parent for dynamic HTML content in examples --></div>\n\n    <h2>Example (1) via uib-update node</h2>\n    <p id=\"div40\">\n        This is some text and I want to tell you \n        that my age is <b id=\"myage\">140</b>.\n        This will be updated direct from Node-RED\n        using a <code>uib-update</code> node.\n    </p>\n    <h2>Example (2) via front-end code (<code>index.html</code>)</h2>\n    <p id=\"div41\">\n        This is some more text and I want to tell you \n        that the temperature today is \n        <b id=\"todaytemp\" class=\"error border\">-20</b>℃. This will\n        be updated using front-end code in\n        <code>index.js</code>\n    </p>\n    <h2>Example (3) via <code>&lt;uib-var></code> custom web component</h2>\n    <p id=\"div42\">\n        <uib-var variable=\"myquote\" type=\"html\" style=\"width:100%;\">\n            (waiting for quote)\n        </uib-var>\n    </p>\n    <h2>Example (4) via <code>&lt;uib-var></code> custom web component with filter</h2>\n    <p id=\"div43\" class=\"border\">\n        <uib-var variable=\"egfilter\">\n            [waiting for egfilter value]\n        </uib-var> (no filter, just the value)<br>\n        <uib-var variable=\"egfilter\" filter=\"myFilter\">\n            [waiting for egfilter value]\n        </uib-var> (<code>myFilter</code> fn applied)<br>\n        <!-- NOTE: Args can only be numbers or strings -->\n        <uib-var \n            variable=\"egfilter\" \n            filter=\"myFilter(2)\"\n            >\n            [waiting for egfilter value]\n        </uib-var>\n         (<code>myFilter</code> fn with extra param (2) applied)\n    </p>\n    <h2>Example (5) via <code>&lt;uib-var></code> custom web component using topic monitor</h2>\n    <p id=\"div44\" class=\"border\">\n        <uib-var topic=\"mytopic/#1\" id=\"uv5.1\">\n            [waiting for egtopic/#1 value]\n        </uib-var>\n    </p>\n\n    <h2>Other <code>uib-var</code> tests</h2>\n    <ul class=\"checklist\">\n        <li class=\"check\">\n            Only filter. UIBUILDER version <code>uibuilder.get</code>: \n            <uib-var filter=\"uibuilder.get('version')\">[...]</uib-var>\n        </li>\n        <li class=\"check\">\n            Only filter. UIBUILDER version shortcut <code>get</code>: \n            <uib-var filter=\"get('version')\">[...]</uib-var>\n        </li>\n        <li class=\"check\">\n            Format number <code>uibuilder.formatNumber</code>: \n            My Locale (<uib-var filter=\"lang\">[...]</uib-var>): \n                <uib-var topic=\"mytopic/#1\" filter=\"uibuilder.formatNumber(2)\">[...]</uib-var>\n            German: \n                <uib-var topic=\"mytopic/#1\" filter=\"uibuilder.formatNumber(2, 'de-DE')\">[...]</uib-var>\n            <!-- This needs options in object and we can't pass that so use a custom function -->\n            Currency (Yen): \n                <uib-var topic=\"mytopic/#1\" filter=\"yen\">[...]</uib-var>\n        </li>\n        <li class=\"check\">\n            Fn in object, no args: \n            <uib-var filter=\"mything.myfunc\">[...]</uib-var>\n        </li>\n        <li class=\"check\">\n            Fn in object, with args:\n            <uib-var filter=\"mything.myfunc(1, 2, 3)\">[...]</uib-var>\n        </li>\n        <li class=\"check\">\n            Fn in object, empty args:\n            <uib-var filter=\"mything.myfunc()\">[...]</uib-var>\n        </li>\n        <li class=\"check\">\n            Filter, global as arg:\n            <uib-var filter=\"mything.myfunc(xxxx, yyyy)\">[...]</uib-var>\n        </li>\n        <li class=\"check\">\n            Variable + filter, different args order:\n            <uib-var filter=\"myFilter(4)\" variable=\"egfilter\">[...]</uib-var>\n        </li>\n        <li class=\"check\">\n            Topic + filter, different args order:\n            <uib-var filter=\"uibuilder.formatNumber(2)\" topic=\"mytopic/#1\">[...]</uib-var>\n        </li>\n        <li class=\"uncheck\"></li>\n        <li class=\"uncheck\"></li>\n    </ul>\n\n</body></html>\n",
+        "output": "str",
+        "x": 810,
+        "y": 80,
+        "wires": [
+            [
+                "a39bd1d7474cf8ec"
+            ]
+        ]
+    },
+    {
+        "id": "a39bd1d7474cf8ec",
+        "type": "uib-save",
+        "z": "36e46a8812418a38",
+        "g": "86fa2a8ae6f5f32e",
+        "url": "text-update-egs",
+        "uibId": "ff050c4347776e67",
+        "folder": "src",
+        "fname": "",
+        "createFolder": true,
+        "reload": true,
+        "usePageName": false,
+        "encoding": "utf8",
+        "mode": 438,
+        "name": "",
+        "topic": "",
+        "x": 1020,
+        "y": 80,
+        "wires": []
+    },
+    {
+        "id": "dc323f1cc56a3d6c",
+        "type": "template",
+        "z": "36e46a8812418a38",
+        "g": "86fa2a8ae6f5f32e",
+        "name": "index.js",
+        "field": "payload",
+        "fieldType": "msg",
+        "format": "javascript",
+        "syntax": "plain",
+        "template": "/* global $,uibuilder */\n\n/** Custom filter function\n * Called from uib-var with the filter attribute set\n * Filter functions ALWAYS have the passed value as the first parameter\n * Other parameters are added after the value as in this case with dp\n * @param {*} val Current value of the managed variable\n * @param {number} dp # decimal places to show\n * @returns {string} Updated value trimmed to the required # of dps before display\n */\nfunction myFilter(val, dp) {\n    if (!dp) dp = 0\n    // console.log('myFilter called', arguments )\n    return (Math.random()*val).toFixed(dp)\n}\n\n// uibuilder.onChange('msg', (msg) => {\n//     if (msg.topic === 'todaytemp') {\n//         console.info('👁️ We got a `todaytemp` message from Node-RED')\n//         // Use innerHTML if needed\n//         $('#todaytemp').innerText = msg.payload\n//     }\n// })\n\n// uibuilder.onTopic('mytopic/#1', (msg) => {\n//     console.log( 'TOPIC \"mytopic/#1\" recieved')\n// })",
+        "output": "str",
+        "x": 820,
+        "y": 120,
+        "wires": [
+            [
+                "a39bd1d7474cf8ec"
+            ]
+        ]
+    },
+    {
+        "id": "24a49e7875280cc1",
+        "type": "change",
+        "z": "36e46a8812418a38",
+        "g": "86fa2a8ae6f5f32e",
+        "name": "index.html",
+        "rules": [
+            {
+                "t": "set",
+                "p": "fname",
+                "pt": "msg",
+                "to": "index.html",
+                "tot": "str"
+            }
+        ],
+        "action": "",
+        "property": "",
+        "from": "",
+        "to": "",
+        "reg": false,
+        "x": 695,
+        "y": 80,
+        "wires": [
+            [
+                "46689bc058b9d4db"
+            ]
+        ],
+        "l": false
+    },
+    {
+        "id": "d091b7d37c855385",
+        "type": "change",
+        "z": "36e46a8812418a38",
+        "g": "86fa2a8ae6f5f32e",
+        "name": "index.js",
+        "rules": [
+            {
+                "t": "set",
+                "p": "fname",
+                "pt": "msg",
+                "to": "index.js",
+                "tot": "str"
+            }
+        ],
+        "action": "",
+        "property": "",
+        "from": "",
+        "to": "",
+        "reg": false,
+        "x": 695,
+        "y": 120,
+        "wires": [
+            [
+                "dc323f1cc56a3d6c"
+            ]
+        ],
+        "l": false
+    },
+    {
+        "id": "0b17130da037b085",
+        "type": "comment",
+        "z": "36e46a8812418a38",
+        "name": "Examples of different ways to update text or HTML on your web page",
+        "info": "",
+        "x": 280,
+        "y": 20,
+        "wires": []
+    },
+    {
+        "id": "a90103b8776de604",
+        "type": "inject",
+        "z": "36e46a8812418a38",
+        "name": "Send msg with given topic. Payload is value to show",
+        "props": [
+            {
+                "p": "topic",
+                "vt": "str"
+            },
+            {
+                "p": "payload"
+            }
+        ],
+        "repeat": "13",
+        "crontab": "",
+        "once": false,
+        "onceDelay": "15",
+        "topic": "mytopic/#1",
+        "payload": "$random() * 10000",
+        "payloadType": "jsonata",
+        "x": 280,
+        "y": 980,
+        "wires": [
+            [
+                "5c4452e742079f53"
+            ]
+        ]
+    },
+    {
+        "id": "5c4452e742079f53",
+        "type": "link out",
+        "z": "36e46a8812418a38",
+        "name": "link out 76",
+        "mode": "link",
+        "links": [
+            "d5ffe9a264b1c424"
+        ],
+        "x": 745,
+        "y": 980,
+        "wires": []
+    },
+    {
+        "id": "1d7eada0bf4714e4",
+        "type": "comment",
+        "z": "36e46a8812418a38",
+        "name": "5) Use the uib-var front-end component to to monitor recieved messages with a given topic. (We won't cache this one) \\n Just send the message.",
+        "info": "",
+        "x": 470,
+        "y": 920,
+        "wires": []
+    },
+    {
+        "id": "4713e2116ddc6c5f",
+        "type": "uib-tag",
+        "z": "36e46a8812418a38",
+        "name": "",
+        "topic": "",
+        "tag": "uib-var",
+        "tagSource": "",
+        "tagSourceType": "str",
+        "parent": "#more",
+        "parentSource": "",
+        "parentSourceType": "str",
+        "elementId": "var05",
+        "elementIdSourceType": "str",
+        "position": "last",
+        "positionSourceType": "str",
+        "slotSourceProp": "[waiting for data]",
+        "slotSourcePropType": "str",
+        "attribsSource": "{\"topic\": \"mytopic/#1\"}",
+        "attribsSourceType": "json",
+        "slotPropMarkdown": false,
+        "x": 340,
+        "y": 1120,
+        "wires": [
+            [
+                "046d41ddfade6f54"
+            ]
+        ]
+    },
+    {
+        "id": "91baa1ad1ffb54b0",
+        "type": "inject",
+        "z": "36e46a8812418a38",
+        "name": "",
+        "props": [],
+        "repeat": "",
+        "crontab": "",
+        "once": false,
+        "onceDelay": 0.1,
+        "topic": "",
+        "x": 95,
+        "y": 1120,
+        "wires": [
+            [
+                "4713e2116ddc6c5f",
+                "e7ba80c9d474c240"
+            ]
+        ],
+        "l": false
+    },
+    {
+        "id": "046d41ddfade6f54",
+        "type": "link out",
+        "z": "36e46a8812418a38",
+        "name": "link out 77",
+        "mode": "link",
+        "links": [
+            "d5ffe9a264b1c424"
+        ],
+        "x": 745,
+        "y": 1120,
+        "wires": []
+    },
+    {
+        "id": "d70baee6d9a7a852",
+        "type": "comment",
+        "z": "36e46a8812418a38",
+        "name": "Example of no-code addition of a uib-var tag to the web page, updates automatically using the same flow as #5 above",
+        "info": "",
+        "x": 470,
+        "y": 1080,
+        "wires": []
+    },
+    {
+        "id": "e7ba80c9d474c240",
+        "type": "uib-tag",
+        "z": "36e46a8812418a38",
+        "name": "",
+        "topic": "",
+        "tag": "uib-var",
+        "tagSource": "",
+        "tagSourceType": "str",
+        "parent": "#more",
+        "parentSource": "",
+        "parentSourceType": "str",
+        "elementId": "var06",
+        "elementIdSourceType": "str",
+        "position": "last",
+        "positionSourceType": "str",
+        "slotSourceProp": "[...]",
+        "slotSourcePropType": "str",
+        "attribsSource": "{\"filter\": \"lang\"}",
+        "attribsSourceType": "json",
+        "slotPropMarkdown": false,
+        "x": 340,
+        "y": 1160,
+        "wires": [
+            [
+                "046d41ddfade6f54"
+            ]
+        ]
+    }
+]

From 3d4404e85501e840aeffcecc4f992a6c08366af0 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Sun, 31 Dec 2023 13:49:38 +0000
Subject: [PATCH 64/78] Updates - mostly due to connection to Obsidian
 automation.

---
 docs/{_404.md => .config/404.md}             |   0
 docs/{_coverpage.md => .config/coverpage.md} |   0
 docs/{-sidebar.md => .config/sidebar.md}     |   2 +-
 docs/README.md                               |   5 +-
 docs/UPDATES/2302131 README.md.md            |   3 +-
 docs/UPDATES/2302141 walkthrough1.md         |   6 +-
 docs/UPDATES/2302151msg.md                   |   4 +
 docs/UPDATES/2302201 uibuilder.md            |   5 +-
 docs/apis/readme.md                          |   3 +-
 docs/archived/CHANGELOG-v1.md                |   4 +
 docs/archived/CHANGELOG-v2.md                |   4 +
 docs/archived/CHANGELOG-v3-v4.md             |   4 +
 docs/archived/CHANGELOG-v5.md                |   2 +
 docs/archived/README-v1.md                   |   4 +
 docs/archived/V2-PROGRESS.md                 |   4 +
 docs/archived/sec-process.md                 |   4 +
 docs/archived/security.md                    |   5 +-
 docs/archived/securityjs.md                  |   4 +
 docs/archived/v2-breaking-changes.md         |   4 +
 docs/browser-refresh.md                      |   5 +-
 docs/client-docs/config-driven-ui.md         |   6 +-
 docs/client-docs/control-from-node-red.md    |   6 +-
 docs/client-docs/custom-components.md        |   5 +-
 docs/client-docs/custom-events.md            |   5 +-
 docs/client-docs/fe-router.md                |   3 +-
 docs/client-docs/features.md                 |   5 +-
 docs/client-docs/functions.md                |   6 +-
 docs/client-docs/how-to-use.md               |   5 +-
 docs/client-docs/readme.md                   |   5 +-
 docs/client-docs/technical-reference.md      |   5 +-
 docs/client-docs/troubleshooting.md          |   5 +-
 docs/client-docs/uib-brand-css.md            |   5 +-
 docs/client-docs/uibuilderfe-library.md      |   5 +-
 docs/client-docs/variables.md                |   6 +-
 docs/components.md                           |   5 +-
 docs/creating-templates.md                   |   5 +-
 docs/dev/README.md                           |   3 +-
 docs/dev/build-steps.md                      |   6 +-
 docs/dev/client-libs/readme.md               |   3 +-
 docs/dev/client-libs/ui.md                   |   3 +-
 docs/dev/client-libs/uibuilder-module.md     |   3 +-
 docs/dev/client-libs/uibuilderfe.md          |   3 +-
 docs/dev/editor-libs/readme.md               |   3 +-
 docs/dev/editor-libs/ti-common-css.md        |   3 +-
 docs/dev/editor-libs/ti-common.md            |   3 +-
 docs/dev/regression-tests.md                 |   5 +-
 docs/dev/server-libs/admin-api-v2.md         |   3 +-
 docs/dev/server-libs/admin-api-v3.md         |   3 +-
 docs/dev/server-libs/fs.md                   |   3 +-
 docs/dev/server-libs/readme.md               |   3 +-
 docs/dev/server-libs/socket.md               |   5 +-
 docs/dev/server-libs/tilib.md                |   5 +-
 docs/dev/server-libs/uiblib.md               |   5 +-
 docs/dev/server-libs/web.md                  |   5 +-
 docs/dev/uibuilder-html.md                   |   5 +-
 docs/dev/uibuilder-js.md                     |   5 +-
 docs/did-you-know.md                         |   4 +-
 docs/docksify-howto.md                       |   4 +
 docs/docs.md                                 | 148 +++++
 docs/elements/forms.md                       |   5 +-
 docs/elements/html.md                        |   5 +-
 docs/elements/lists.md                       |   5 +-
 docs/elements/markdown.md                    |   5 +-
 docs/elements/other.md                       |   5 +-
 docs/elements/tables.md                      |   6 +-
 docs/front-end-build-snowpack.md             |   5 +-
 docs/front-end-builds.md                     |   5 +-
 docs/front-end-no-build.md                   |   3 +-
 docs/glossary.md                             |   5 +-
 docs/how-to/README.md                        |   5 +-
 docs/how-to/cache-node.md                    |   6 +-
 docs/how-to/change-element.md                |   5 +-
 docs/how-to/changing-uibroot.md              |   5 +-
 docs/how-to/css-selectors.md                 |   5 +-
 docs/how-to/function-node.md                 |   6 +-
 docs/how-to/instance-apis.md                 |   6 +-
 docs/how-to/instance-routes.md               |   5 +-
 docs/how-to/list-node.md                     |   5 +-
 docs/how-to/live-reload-dev-server.md        |   5 +-
 docs/how-to/load-external-files.md           |   5 +-
 docs/how-to/sender-node.md                   |   5 +-
 docs/how-to/use-low-code-in-fe.md            |   6 +-
 docs/how-to/what-can-i-do.md                 |   5 +-
 docs/index.html                              |  43 +-
 docs/jsdoc/uibuilder.module.js.md            |   4 +
 docs/nginx-auth.md                           |   4 +
 docs/nginx-example-config.md                 |   5 +-
 docs/nodes/README.md                         |   5 +-
 docs/nodes/uib-cache.md                      |   5 +-
 docs/nodes/uib-element.md                    |   5 +-
 docs/nodes/uib-html.md                       |   5 +-
 docs/nodes/uib-save.md                       |   5 +-
 docs/nodes/uib-sender.md                     |   5 +-
 docs/nodes/uib-tag.md                        |   5 +-
 docs/nodes/uib-update.md                     |   5 +-
 docs/nodes/uibuilder.md                      |   5 +-
 docs/pre-defined-msgs.md                     |   5 +-
 docs/processes/README.md                     |   3 +-
 docs/processes/add-library.md                |   3 +-
 docs/processes/chk-libraries-on-startup.md   |   3 +-
 docs/processes/client-connect.md             |   3 +-
 docs/processes/package-management-process.md |   4 +
 docs/processes/url-change-rename.md          |   3 +-
 docs/roadmap/Future.md                       |  22 +
 docs/roadmap/Maybe.md                        |  63 +++
 docs/roadmap/Old.md                          |  19 +
 docs/roadmap/Rejected.md                     |   9 +
 docs/{roadmap.md => roadmap/readme.md}       | 541 +++++++------------
 docs/security/securing-data.md               |   5 +-
 docs/security/security.md                    |   5 +-
 docs/security/uib-security-nginx.md          |   5 +-
 docs/svelte.md                               |   3 +-
 docs/uib-configuration.md                    |   5 +-
 docs/uib-event-comms.md                      |   6 +-
 docs/uib-node-configuration.md               |   5 +-
 docs/using/why-uibuilder.md                  |   6 +-
 docs/using/zero-code-ui.md                   |   5 +-
 docs/vue-complexities.md                     |   6 +-
 docs/vue-component-handling.md               |   6 +-
 docs/walkthrough1.md                         |   6 +-
 docs/web-app-workflow.md                     |   5 +-
 docs/what-makes.md                           |   5 +-
 122 files changed, 809 insertions(+), 553 deletions(-)
 rename docs/{_404.md => .config/404.md} (100%)
 rename docs/{_coverpage.md => .config/coverpage.md} (100%)
 rename docs/{-sidebar.md => .config/sidebar.md} (99%)
 create mode 100644 docs/docs.md
 create mode 100644 docs/roadmap/Future.md
 create mode 100644 docs/roadmap/Maybe.md
 create mode 100644 docs/roadmap/Old.md
 create mode 100644 docs/roadmap/Rejected.md
 rename docs/{roadmap.md => roadmap/readme.md} (73%)

diff --git a/docs/_404.md b/docs/.config/404.md
similarity index 100%
rename from docs/_404.md
rename to docs/.config/404.md
diff --git a/docs/_coverpage.md b/docs/.config/coverpage.md
similarity index 100%
rename from docs/_coverpage.md
rename to docs/.config/coverpage.md
diff --git a/docs/-sidebar.md b/docs/.config/sidebar.md
similarity index 99%
rename from docs/-sidebar.md
rename to docs/.config/sidebar.md
index 5eda6b3e..e0252221 100644
--- a/docs/-sidebar.md
+++ b/docs/.config/sidebar.md
@@ -63,7 +63,7 @@
 * [REST API's](apis/)
 * [Glossary of terms](glossary.md)
 * [Changelog <sup>🔗</sup>](changelog)
-* [Roadmap](roadmap)
+* [Roadmap](roadmap/)
 * [Main readme <sup>🔗</sup>](uibhome)
 * Archives
   * [v5 Changelog](archived/CHANGELOG-v5)
diff --git a/docs/README.md b/docs/README.md
index 1b25b39d..68a673db 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -1,9 +1,10 @@
 ---
 title: UIBUILDER Documentation
-description: >
+description: |
   UIBUILDER provides a stand-alone web server that allows for interfacing with Node-RED, while giving you help and complete freedom to create custom web interfaces.
 created: 2019-06-16 16:16:00
 lastUpdated: 2023-09-30 13:06:56
+updated: 2023-12-30 20:02:01
 ---
 
 It includes many helper features that can reduce or eliminate the need to write code for building data-driven web applications and user interfaces for Node-RED.
@@ -47,7 +48,7 @@ WIKI, code (PR's), documentation, and examples are all welcome contributions and
 
 ## Content Index
 
-[index](-sidebar.md ':include')
+[index](.config/sidebar.md ':include')
 
 ## Additional Links
 
diff --git a/docs/UPDATES/2302131 README.md.md b/docs/UPDATES/2302131 README.md.md
index 9f800b99..f4bfce82 100644
--- a/docs/UPDATES/2302131 README.md.md	
+++ b/docs/UPDATES/2302131 README.md.md	
@@ -1,9 +1,10 @@
 ---
 title: uibuilder Documentation
-description: >
+description: |
   uibuilder provides a stand-alone web server that allows for interfacing with Node-RED, while giving you help and complete freedom to create custom web interfaces.
 created: 2019-06-16 16:16:00
 lastUpdated: 2023-02-08 10:17:10
+updated: 2023-12-30 17:01:42
 ---
 
 It includes many helper features that can reduce or eliminate the need to write code for building data-driven web applications and user interfaces for Node-RED.  <font color="#2DC26B">[ Here is a diagram(Link to diagram)]** that gives an overview of how the various uibuilder components work together.</font>
diff --git a/docs/UPDATES/2302141 walkthrough1.md b/docs/UPDATES/2302141 walkthrough1.md
index d3268691..6bad5871 100644
--- a/docs/UPDATES/2302141 walkthrough1.md	
+++ b/docs/UPDATES/2302141 walkthrough1.md	
@@ -1,10 +1,10 @@
 ---
 title: A first-timers walkthrough of using uibuilder
-description: >
-   If you haven't used uibuilder before, it can be a little confusing as it brings together concepts from
-   several different worlds. This walkthrough takes you from nothing to a basic data-driven web page.
+description: |
+  If you haven't used uibuilder before, it can be a little confusing as it brings together concepts from several different worlds. This walkthrough takes you from nothing to a basic data-driven web page.
 created: 2021-09-24 11:02:56
 lastUpdated: 2023-02-12 02:25:49
+updated: 2023-12-30 17:01:42
 ---
 
 Like uibuilder itself, this walkthrough may look complex. But you should bear in mind that if you follow the 7 <font color="#2DC26B">(or is it 4?)</font> steps in the [How to get started](#how-to-get-started-4-steps-to-a-data-driven-web-app) section, that is basically it.
diff --git a/docs/UPDATES/2302151msg.md b/docs/UPDATES/2302151msg.md
index 5077d35d..fc1e94e6 100644
--- a/docs/UPDATES/2302151msg.md
+++ b/docs/UPDATES/2302151msg.md
@@ -1,3 +1,7 @@
+---
+created: 2023-03-06 10:59:23
+updated: 2023-12-30 17:01:42
+---
 Hi Julian,
 
 I have gone through Readme and Walkthrough1, the results are attached.
diff --git a/docs/UPDATES/2302201 uibuilder.md b/docs/UPDATES/2302201 uibuilder.md
index c2e50e9b..1f9e9ca6 100644
--- a/docs/UPDATES/2302201 uibuilder.md	
+++ b/docs/UPDATES/2302201 uibuilder.md	
@@ -1,9 +1,10 @@
 ---
 title: The main uibuilder node
-description: >
-   Usage and configuration.
+description: |
+  Usage and configuration.
 created: 2023-02-05 16:31:39
 lastUpdated: 2023-02-05 16:31:46
+updated: 2023-12-30 17:01:42
 ---
 
 > [!note]
diff --git a/docs/apis/readme.md b/docs/apis/readme.md
index 1a13307b..cf559a9a 100644
--- a/docs/apis/readme.md
+++ b/docs/apis/readme.md
@@ -1,9 +1,10 @@
 ---
 title: UIBUILDER REST API's
-description: >
+description: |
   UIBUILDER exposes a number of REST API's. This is an index of them.
 created: 2023-09-14 19:39:52
 lastUpdated: 2023-09-16 12:36:36
+updated: 2023-12-30 17:01:41
 ---
 
 Most of UIBUILDER's standard REST API's are common across all instances of `uibuilder` nodes added to your Node-RED flows. However, see below for the instance API's features.
diff --git a/docs/archived/CHANGELOG-v1.md b/docs/archived/CHANGELOG-v1.md
index 9b6c9085..a47688b8 100644
--- a/docs/archived/CHANGELOG-v1.md
+++ b/docs/archived/CHANGELOG-v1.md
@@ -1,3 +1,7 @@
+---
+created: 2022-04-02 19:09:31
+updated: 2023-12-30 17:01:41
+---
 ## Changelog Archive for v1
 
 Current major version changelog can be found in the root of this package: `../CHANGELOG.md`.
diff --git a/docs/archived/CHANGELOG-v2.md b/docs/archived/CHANGELOG-v2.md
index 90a60399..2c8b52f4 100644
--- a/docs/archived/CHANGELOG-v2.md
+++ b/docs/archived/CHANGELOG-v2.md
@@ -1,3 +1,7 @@
+---
+created: 2022-04-02 19:09:31
+updated: 2023-12-30 17:01:41
+---
 ## Changelog Archive for v2
 
 Current major version changelog can be found in the root of this package: `../CHANGELOG.md`.
diff --git a/docs/archived/CHANGELOG-v3-v4.md b/docs/archived/CHANGELOG-v3-v4.md
index ec5a2ff5..259f5e43 100644
--- a/docs/archived/CHANGELOG-v3-v4.md
+++ b/docs/archived/CHANGELOG-v3-v4.md
@@ -1,3 +1,7 @@
+---
+created: 2022-04-02 19:09:31
+updated: 2023-12-30 17:01:41
+---
 # Changelog Archive for v3 and v4
 
 Current major version changelog can be found in the root of this package: `../CHANGELOG.md`.
diff --git a/docs/archived/CHANGELOG-v5.md b/docs/archived/CHANGELOG-v5.md
index 73fb1399..87dc4586 100644
--- a/docs/archived/CHANGELOG-v5.md
+++ b/docs/archived/CHANGELOG-v5.md
@@ -1,5 +1,7 @@
 ---
 typora-root-url: docs/images
+created: 2023-03-06 10:59:23
+updated: 2023-12-30 17:01:41
 ---
 
 # Changelog archive for uibuilder v5
diff --git a/docs/archived/README-v1.md b/docs/archived/README-v1.md
index 0d24fd05..bae621ff 100644
--- a/docs/archived/README-v1.md
+++ b/docs/archived/README-v1.md
@@ -1,3 +1,7 @@
+---
+created: 2022-04-02 19:09:31
+updated: 2023-12-30 17:01:41
+---
 [![NPM Version](https://img.shields.io/npm/v/node-red-contrib-uibuilder.svg)](https://www.npmjs.com/package/node-red-contrib-uibuilder)
 [![NPM Total Downloads](https://img.shields.io/npm/dt/node-red-contrib-uibuilder.svg)](https://www.npmjs.com/package/node-red-contrib-uibuilder)
 [![NPM Downloads per month](https://img.shields.io/npm/dm/node-red-contrib-uibuilder.svg)](https://www.npmjs.com/package/node-red-contrib-uibuilder)
diff --git a/docs/archived/V2-PROGRESS.md b/docs/archived/V2-PROGRESS.md
index 3c8befb7..f701c984 100644
--- a/docs/archived/V2-PROGRESS.md
+++ b/docs/archived/V2-PROGRESS.md
@@ -1,3 +1,7 @@
+---
+created: 2022-04-02 19:09:31
+updated: 2023-12-30 17:01:41
+---
 This is the design note for part 2 of enabling source file editing from the Node-RED admin ui.
 
 The [main To Do list is now in the WIKI](https://github.com/TotallyInformation/node-red-contrib-uibuilder/wiki/To-Do).
diff --git a/docs/archived/sec-process.md b/docs/archived/sec-process.md
index 57bb986e..40769e78 100644
--- a/docs/archived/sec-process.md
+++ b/docs/archived/sec-process.md
@@ -1,3 +1,7 @@
+---
+created: 2022-04-02 19:09:31
+updated: 2023-12-30 17:01:41
+---
 
 Changes
 
diff --git a/docs/archived/security.md b/docs/archived/security.md
index b176467c..7bd9a9b2 100644
--- a/docs/archived/security.md
+++ b/docs/archived/security.md
@@ -1,9 +1,10 @@
 ---
 title: uibuilder Security Documentation
-description: >
-   Some thoughts on how to correctly and safely secure a uibuilder app.
+description: |
+  Some thoughts on how to correctly and safely secure a uibuilder app.
 created: 2020-01-05 20:45:00
 lastUpdated: 2021-06-27 18:19:13
+updated: 2023-12-30 17:01:41
 ---
 
 uibuilder provides its own security process based on simple standards.
diff --git a/docs/archived/securityjs.md b/docs/archived/securityjs.md
index 2990122d..7d2ee6bd 100644
--- a/docs/archived/securityjs.md
+++ b/docs/archived/securityjs.md
@@ -1,3 +1,7 @@
+---
+created: 2022-04-02 19:09:31
+updated: 2023-12-30 17:01:41
+---
 # security.js Technical Documentation
 
 The `security.js` file is the custom part of uibuilder's security architecture. 
diff --git a/docs/archived/v2-breaking-changes.md b/docs/archived/v2-breaking-changes.md
index 9bdf49ce..1fa64561 100644
--- a/docs/archived/v2-breaking-changes.md
+++ b/docs/archived/v2-breaking-changes.md
@@ -1,3 +1,7 @@
+---
+created: 2022-04-02 19:09:31
+updated: 2023-12-30 17:01:41
+---
 This page aims to document all of the breaking and potentially breaking changes in v2.0.0 since v1.2.6.
 
 While this may seem like a lot of breaking changes. In reality it breaks down to just a few and you only need to do them on existing installations that you have altered from the defaults.
diff --git a/docs/browser-refresh.md b/docs/browser-refresh.md
index 1f3fc189..fc38bb32 100644
--- a/docs/browser-refresh.md
+++ b/docs/browser-refresh.md
@@ -1,9 +1,10 @@
 ---
 title: Auto-refresh the browser when developing
-description: >
-   Describes how to make your page refresh automatically when developing front-end code.
+description: |
+  Describes how to make your page refresh automatically when developing front-end code.
 created: 2022-02-15 20:56:20
 lastUpdated: 2023-09-30 13:03:51
+updated: 2023-12-30 17:01:41
 ---
 
 ## Reload message
diff --git a/docs/client-docs/config-driven-ui.md b/docs/client-docs/config-driven-ui.md
index 4f8a7c68..95adf97f 100644
--- a/docs/client-docs/config-driven-ui.md
+++ b/docs/client-docs/config-driven-ui.md
@@ -1,10 +1,10 @@
 ---
 title: Dynamic, configuration-driven UI's (low-code)
-description: >
-   This version of the uibuilder front-end library supports the dynamic manipulation of your web pages. This is achieved either by loading a JSON file describing the layout and/or by sending messages from Node-RED via a `uibuilder` node where the messages contain a `msg._ui` property.
-   This is known as "configuration-driven" design since you send the configuration information and not the actual HTML. It is considered a low-code approach.
+description: |
+  This version of the uibuilder front-end library supports the dynamic manipulation of your web pages. This is achieved either by loading a JSON file describing the layout and/or by sending messages from Node-RED via a `uibuilder` node where the messages contain a `msg._ui` property. This is known as "configuration-driven" design since you send the configuration information and not the actual HTML. It is considered a low-code approach.
 created: 2022-06-11 14:15:26
 lastUpdated: 2023-09-30 13:02:29
+updated: 2023-12-30 17:01:41
 ---
 
 - [Restricting actions to specific pages, users, tabs](#restricting-actions-to-specific-pages-users-tabs)
diff --git a/docs/client-docs/control-from-node-red.md b/docs/client-docs/control-from-node-red.md
index 39315894..12109e8b 100644
--- a/docs/client-docs/control-from-node-red.md
+++ b/docs/client-docs/control-from-node-red.md
@@ -1,10 +1,10 @@
 ---
 title: Controlling UIBUILDER's client from Node-RED
-description: >
-   How to send specially formatted messages from Node-RED to the uibuilder node that
-   get information from the client and control how it works.
+description: |
+  How to send specially formatted messages from Node-RED to the uibuilder node that get information from the client and control how it works.
 created: 2023-02-23 11:59:44
 lastUpdated: 2023-10-14 17:00:54
+updated: 2023-12-30 17:01:41
 ---
 
 The UIBUILDER client library can be controlled in various ways from Node-RED to save you the bother of having to write front-end code.
diff --git a/docs/client-docs/custom-components.md b/docs/client-docs/custom-components.md
index b6b4978c..6559e75a 100644
--- a/docs/client-docs/custom-components.md
+++ b/docs/client-docs/custom-components.md
@@ -1,9 +1,10 @@
 ---
 title: Custom web components
-description: >
-   Web components built into the UIBUILDER client and information about external web components.
+description: |
+  Web components built into the UIBUILDER client and information about external web components.
 created: 2023-10-08 13:44:56
 lastUpdated: 2023-12-29 17:25:31
+updated: 2023-12-30 17:01:41
 ---
 
 UIBUILDER can work with front-end frameworks such as REACT, VueJS, etc. However, it does not need them. But one thing that these frameworks often have are collections of components that you can add to your HTML. Each component will produce something useful in your web page such as an information card, tabbed interface, navigation menu, etc.
diff --git a/docs/client-docs/custom-events.md b/docs/client-docs/custom-events.md
index 23ebea9a..f77efa89 100644
--- a/docs/client-docs/custom-events.md
+++ b/docs/client-docs/custom-events.md
@@ -1,9 +1,10 @@
 ---
 title: Custom document events used in the modern client
-description: >
-   Details about the custom `document` events used in the uibuilder modern front-end client library.
+description: |
+  Details about the custom `document` events used in the uibuilder modern front-end client library.
 created: 2023-01-28 15:56:57
 lastUpdated: 2023-09-30 13:02:53
+updated: 2023-12-30 17:01:41
 ---
 
 
diff --git a/docs/client-docs/fe-router.md b/docs/client-docs/fe-router.md
index d3338399..fbc3fcf0 100644
--- a/docs/client-docs/fe-router.md
+++ b/docs/client-docs/fe-router.md
@@ -1,9 +1,10 @@
 ---
 title: UIBUILDER Front-End Router Library
-description: >
+description: |
   Details on the configuration and use of UIBUILDER's front-end router.
 created: 2022-02-01 11:15:27
 lastUpdated: 2023-12-29 17:25:14
+updated: 2023-12-30 17:01:41
 ---
 
 The `uibrouter` front-end library defines a `UibRouter` class. This allows both internal and external content to be dynamically shown, allowing the creation of "Single-Page Apps" (SPA's) or simply keeping parts of the UI hidden from the users until they need them.
diff --git a/docs/client-docs/features.md b/docs/client-docs/features.md
index 74396844..9ff34ffb 100644
--- a/docs/client-docs/features.md
+++ b/docs/client-docs/features.md
@@ -1,9 +1,10 @@
 ---
 title: Features of the modern, modular front-end client `uibuilder.esm.js` and `uibuilder.iife.js`
-description: >
-   Description of the main features.
+description: |
+  Description of the main features.
 created: 2022-06-11 14:15:26
 lastUpdated: 2023-10-08 13:39:09
+updated: 2023-12-30 17:01:41
 ---
 
 - [Dynamic, data-driven HTML content](#dynamic-data-driven-html-content)
diff --git a/docs/client-docs/functions.md b/docs/client-docs/functions.md
index 47feb155..d9d905b6 100644
--- a/docs/client-docs/functions.md
+++ b/docs/client-docs/functions.md
@@ -1,10 +1,10 @@
 ---
 title: Functions available in the modern client
-description: >
-   Details about the functions/methods used in the UIBUILDER front-end client library.
-   Some functions are available to your own custom code and some are hidden inside the `uibuilder` client object.
+description: |
+  Details about the functions/methods used in the UIBUILDER front-end client library. Some functions are available to your own custom code and some are hidden inside the `uibuilder` client object.
 created: 2023-01-28 15:56:57
 lastUpdated: 2023-12-29 17:26:05
+updated: 2023-12-30 17:01:41
 ---
 
 Functions accessible in client-side user code.
diff --git a/docs/client-docs/how-to-use.md b/docs/client-docs/how-to-use.md
index 43e6cf23..7f5004a2 100644
--- a/docs/client-docs/how-to-use.md
+++ b/docs/client-docs/how-to-use.md
@@ -1,9 +1,10 @@
 ---
 title: How to use the modern uibuilder front-end library
-description: >
-   This version of the library can either be used in the same style as the old `uibuilderfe.js` client (loading in a script link in the HTML) using the `uibuilder.iife.js` version or as a modern [ES Module](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Modules) using the `uibuilder.esm.js` version. Both builds of the library have identical features but are called differently as shown below.
+description: |
+  This version of the library can either be used in the same style as the old `uibuilderfe.js` client (loading in a script link in the HTML) using the `uibuilder.iife.js` version or as a modern [ES Module](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Modules) using the `uibuilder.esm.js` version. Both builds of the library have identical features but are called differently as shown below.
 created: 2023-01-28 15:19:38
 lastUpdated: 2023-07-02 13:48:04
+updated: 2023-12-30 17:01:41
 ---
 
 
diff --git a/docs/client-docs/readme.md b/docs/client-docs/readme.md
index fec919eb..e2d2bf69 100644
--- a/docs/client-docs/readme.md
+++ b/docs/client-docs/readme.md
@@ -1,9 +1,10 @@
 ---
 title: Documentation for the modern, modular front-end client `uibuilder.esm.js` and `uibuilder.iife.js`
-description: >
-   This is the new uibuilder front-end library initially introduced in v5.1. It provides socket.io message connectivity to and from Node-RED, simplified message handling and a simple event handler for monitoring for new messages along with some helper utility functions. It also allows data-/configuration-driven interfaces to be created from JSON or Node-RED messages. IIFE (UMD) and ESM builds of the client are provided.
+description: |
+  This is the new uibuilder front-end library initially introduced in v5.1. It provides socket.io message connectivity to and from Node-RED, simplified message handling and a simple event handler for monitoring for new messages along with some helper utility functions. It also allows data-/configuration-driven interfaces to be created from JSON or Node-RED messages. IIFE (UMD) and ESM builds of the client are provided.
 created: 2022-06-11 14:15:26
 lastUpdated: 2023-04-15 17:59:18
+updated: 2023-12-30 17:01:41
 ---
 
 This is the next-generation front-end client for uibuilder. It has some nice new features but at the expense of only working with modern(ish) browsers since early 2019.
diff --git a/docs/client-docs/technical-reference.md b/docs/client-docs/technical-reference.md
index ce4efcb4..c754bb64 100644
--- a/docs/client-docs/technical-reference.md
+++ b/docs/client-docs/technical-reference.md
@@ -1,9 +1,10 @@
 ---
 title: Technical details for the modern, modular front-end client `uibuilder.esm.js` and `uibuilder.iife.js`
-description: >
-   More details on the technical aspects including available variables, functions, etc.
+description: |
+  More details on the technical aspects including available variables, functions, etc.
 created: 2022-06-11 14:15:26
 lastUpdated: 2023-01-28 16:17:58
+updated: 2023-12-30 17:01:41
 ---
 
 [Moved](client-docs/readme.md)
diff --git a/docs/client-docs/troubleshooting.md b/docs/client-docs/troubleshooting.md
index 75d7be4c..a1e4e7ca 100644
--- a/docs/client-docs/troubleshooting.md
+++ b/docs/client-docs/troubleshooting.md
@@ -1,9 +1,10 @@
 ---
 title: Technical details for the modern, modular front-end client `uibuilder.esm.js` and `uibuilder.iife.js`
-description: >
-   In general, uibuilder is very robust and will rarely give any problems. However, here are a few issues that have been seen in the past.
+description: |
+  In general, uibuilder is very robust and will rarely give any problems. However, here are a few issues that have been seen in the past.
 created: 2022-06-11 14:15:26
 lastUpdated: 2023-01-04 15:40:54
+updated: 2023-12-30 17:01:41
 ---
 
 ## Vendor files are not loading
diff --git a/docs/client-docs/uib-brand-css.md b/docs/client-docs/uib-brand-css.md
index 4c6632c3..e6dc8d98 100644
--- a/docs/client-docs/uib-brand-css.md
+++ b/docs/client-docs/uib-brand-css.md
@@ -1,9 +1,10 @@
 ---
 title: Documentation for the uibuilder standard CSS file
-description: >
-   Details of the different styles and their usage.
+description: |
+  Details of the different styles and their usage.
 created: 2023-02-25 13:54:50
 lastUpdated: 2023-12-11 17:36:55
+updated: 2023-12-30 17:01:41
 ---
 
 *(This document is a work-in-progress, it is not complete)*
diff --git a/docs/client-docs/uibuilderfe-library.md b/docs/client-docs/uibuilderfe-library.md
index ac89f87e..2f52f7fb 100644
--- a/docs/client-docs/uibuilderfe-library.md
+++ b/docs/client-docs/uibuilderfe-library.md
@@ -1,9 +1,10 @@
 ---
 title: Working with the uibuilderfe Front-End Library
-description: >
-   How to work with UIBUILDER's front-end library in your own UI code.
+description: |
+  How to work with UIBUILDER's front-end library in your own UI code.
 created: 2021-02-17 14:28:00
 lastUpdated: 2023-09-30 17:16:17
+updated: 2023-12-30 17:01:41
 ---
 
 > [!WARNING]
diff --git a/docs/client-docs/variables.md b/docs/client-docs/variables.md
index 912f2d24..a302b2d1 100644
--- a/docs/client-docs/variables.md
+++ b/docs/client-docs/variables.md
@@ -1,10 +1,10 @@
 ---
 title: Variables used in the modern client
-description: >
-   Details about the variables used in the uibuilder modern front-end client library.
-   Some variables are available to your own custom code and some are hidden inside the `uibuilder` client object.
+description: |
+  Details about the variables used in the uibuilder modern front-end client library. Some variables are available to your own custom code and some are hidden inside the `uibuilder` client object.
 created: 2023-01-28 15:56:57
 lastUpdated: 2023-10-30 17:18:40
+updated: 2023-12-30 17:01:41
 ---
 
 ## Read/write
diff --git a/docs/components.md b/docs/components.md
index 0b048473..b13c2972 100644
--- a/docs/components.md
+++ b/docs/components.md
@@ -1,9 +1,10 @@
 ---
 title: Description of the UIBUILDER components
-description: >
-   What is the structure of UIBUILDER? How does it related to Node-RED and the browser?
+description: |
+  What is the structure of UIBUILDER? How does it related to Node-RED and the browser?
 created: 2023-02-12 02:23:54
 lastUpdated: 2023-09-30 13:04:01
+updated: 2023-12-30 17:01:41
 ---
 
 ![Components overview](diagrams/uibuilder-components.svg)
diff --git a/docs/creating-templates.md b/docs/creating-templates.md
index 1035d774..fb3f4f68 100644
--- a/docs/creating-templates.md
+++ b/docs/creating-templates.md
@@ -1,9 +1,10 @@
 ---
 title: Configuring UIBUILDER Templates
-description: >
-   Describes the structure of a template package and how to deploy them.
+description: |
+  Describes the structure of a template package and how to deploy them.
 created: 2022-04-09 19:06:00
 lastUpdated: 2023-09-30 13:04:09
+updated: 2023-12-30 17:01:41
 ---
 
 UIBUILDER has a feature that lets you quickly create a web app based on a template configuration.
diff --git a/docs/dev/README.md b/docs/dev/README.md
index 7fbbe145..288fb76c 100644
--- a/docs/dev/README.md
+++ b/docs/dev/README.md
@@ -1,9 +1,10 @@
 ---
 title: Developer Documentation
-description: >
+description: |
   Deep dives into the internals of UIBUILDER. This is where to go if you need to understand how things work. These documents may lag behind the actual code however, so it is always worth also referencing the current codebase.
 created: 2019-06-16 16:16:00
 lastUpdated: 2023-10-08 15:12:02
+updated: 2023-12-30 17:01:41
 ---
 
 ## Processes
diff --git a/docs/dev/build-steps.md b/docs/dev/build-steps.md
index 591027c3..4420506a 100644
--- a/docs/dev/build-steps.md
+++ b/docs/dev/build-steps.md
@@ -1,10 +1,10 @@
 ---
 title: Using ESBUILD to control output formats
-description: >
-  As UIBUILDER gets more complex and needs to work in different server and client environments, it is more important to control JavaScript output formats
-  and to build minified versions of JavaScript, CSS and even HTML in some cases. The ESBUILD tool is used for this along with GULP for automation.
+description: |
+  As UIBUILDER gets more complex and needs to work in different server and client environments, it is more important to control JavaScript output formats and to build minified versions of JavaScript, CSS and even HTML in some cases. The ESBUILD tool is used for this along with GULP for automation.
 created: 2023-10-08 15:15:36
 lastUpdated: 2023-10-08 15:15:41
+updated: 2023-12-30 17:01:41
 ---
 
 TBC - see the code in `gulpfile.js` for details.
diff --git a/docs/dev/client-libs/readme.md b/docs/dev/client-libs/readme.md
index d8a997f2..4e2ce1ec 100644
--- a/docs/dev/client-libs/readme.md
+++ b/docs/dev/client-libs/readme.md
@@ -1,9 +1,10 @@
 ---
 title: UIBUILDER's Front-End Client Libraries
-description: >
+description: |
   UIBUILDER includes a number of server and client libraries. This section of the documentation provides developer information on the front-end client libraries.
 created: 2023-09-30 16:10:25
 lastUpdated: 2023-09-30 17:12:42
+updated: 2023-12-30 17:01:42
 ---
 
 These libraries support client (browser) HTML interactions with Node-RED.
diff --git a/docs/dev/client-libs/ui.md b/docs/dev/client-libs/ui.md
index a352e6e2..5902a14c 100644
--- a/docs/dev/client-libs/ui.md
+++ b/docs/dev/client-libs/ui.md
@@ -1,9 +1,10 @@
 ---
 title: UIBUILDER's Low-Code to HTML hydration Library
-description: >
+description: |
   Converts the standard msg._ui low-code configuration data into HTML.
 created: 2023-09-30 15:58:31
 lastUpdated: 2023-09-30 15:58:36
+updated: 2023-12-30 17:01:42
 ---
 
 TBC
diff --git a/docs/dev/client-libs/uibuilder-module.md b/docs/dev/client-libs/uibuilder-module.md
index f66250ac..8b39b048 100644
--- a/docs/dev/client-libs/uibuilder-module.md
+++ b/docs/dev/client-libs/uibuilder-module.md
@@ -1,9 +1,10 @@
 ---
 title: UIBUILDER's Primary Client Library
-description: >
+description: |
   Provides the link from the front-end to Node-RED and many helper functions that make uibuilder a complete, lightweight framework.
 created: 2023-09-30 15:58:31
 lastUpdated: 2023-09-30 15:58:36
+updated: 2023-12-30 17:01:42
 ---
 
 > [!NOTE]
diff --git a/docs/dev/client-libs/uibuilderfe.md b/docs/dev/client-libs/uibuilderfe.md
index 9e5b0ca4..8b876ea8 100644
--- a/docs/dev/client-libs/uibuilderfe.md
+++ b/docs/dev/client-libs/uibuilderfe.md
@@ -1,9 +1,10 @@
 ---
 title: UIBUILDER's Deprecated Client Library
-description: >
+description: |
   This describes the now deprecated old version of the client library. Provides the link from the front-end to Node-RED and many helper functions that make uibuilder a complete, lightweight framework.
 created: 2019-05-25 19:05:00
 lastUpdated: 2023-09-30 15:58:36
+updated: 2023-12-30 17:01:42
 ---
 
 > [!WARNING]
diff --git a/docs/dev/editor-libs/readme.md b/docs/dev/editor-libs/readme.md
index b851081d..e068ba1f 100644
--- a/docs/dev/editor-libs/readme.md
+++ b/docs/dev/editor-libs/readme.md
@@ -1,9 +1,10 @@
 ---
 title: UIBUILDER's Node-RED Editor Libraries
-description: >
+description: |
   UIBUILDER includes a common JavaScript & CSS library for uibuilder nodes to use in the Editor.
 created: 2023-12-19 16:11:52
 lastUpdated: 2023-12-19 16:11:59
+updated: 2023-12-30 17:01:42
 ---
 
 These libraries provide common Node-RED Editor data, functions and styling for all UIBUILDER nodes.
diff --git a/docs/dev/editor-libs/ti-common-css.md b/docs/dev/editor-libs/ti-common-css.md
index 78e14997..9acf6378 100644
--- a/docs/dev/editor-libs/ti-common-css.md
+++ b/docs/dev/editor-libs/ti-common-css.md
@@ -1,9 +1,10 @@
 ---
 title: UIBUILDER's Common Node-RED Editor style library
-description: >
+description: |
   Provides common, standard, styling to all UIBUILDER nodes in the Node-RED Editor.
 created: 2023-12-19 16:22:27
 lastUpdated: 2023-12-19 16:22:32
+updated: 2023-12-30 17:01:42
 ---
 
 Location: `/resources/ti-common.css`
diff --git a/docs/dev/editor-libs/ti-common.md b/docs/dev/editor-libs/ti-common.md
index 924a4c2d..25501941 100644
--- a/docs/dev/editor-libs/ti-common.md
+++ b/docs/dev/editor-libs/ti-common.md
@@ -1,9 +1,10 @@
 ---
 title: UIBUILDER's Common Node-RED Editor support library
-description: >
+description: |
   Provides common, standard, functions and data to all UIBUILDER nodes in the Node-RED Editor.
 created: 2023-12-19 16:22:27
 lastUpdated: 2023-12-19 16:22:32
+updated: 2023-12-30 17:01:42
 ---
 
 ## Editor page globals
diff --git a/docs/dev/regression-tests.md b/docs/dev/regression-tests.md
index 6bd9b1ec..436c4fc1 100644
--- a/docs/dev/regression-tests.md
+++ b/docs/dev/regression-tests.md
@@ -1,10 +1,11 @@
 ---
 title: Regression tests for uibuilder
-description: >
-   A summary of some of the key testing available for uibuilder.
+description: |
+  A summary of some of the key testing available for uibuilder.
 created: 2019-05-25 09:33:00
 lastUpdated: 2023-03-06 12:36:02
 author: Julian Knight (Totally Information)
+updated: 2023-12-30 17:01:41
 ---
 
 Here are some simple, manual tests that try to ensure that uibuilder is working as expected.
diff --git a/docs/dev/server-libs/admin-api-v2.md b/docs/dev/server-libs/admin-api-v2.md
index af6940fa..ddccadcd 100644
--- a/docs/dev/server-libs/admin-api-v2.md
+++ b/docs/dev/server-libs/admin-api-v2.md
@@ -1,9 +1,10 @@
 ---
 title: UIBUILDER's Older Admin API Library
-description: >
+description: |
   Provides data to the Node-RED Editor from the uibuilder runtime.
 created: 2023-09-30 15:58:31
 lastUpdated: 2023-09-30 15:58:36
+updated: 2023-12-30 17:01:42
 ---
 
 TBC
diff --git a/docs/dev/server-libs/admin-api-v3.md b/docs/dev/server-libs/admin-api-v3.md
index d7c71d18..9aaaf6c7 100644
--- a/docs/dev/server-libs/admin-api-v3.md
+++ b/docs/dev/server-libs/admin-api-v3.md
@@ -1,9 +1,10 @@
 ---
 title: UIBUILDER's Newer Admin API Library
-description: >
+description: |
   Provides data to the Node-RED Editor from the uibuilder runtime.
 created: 2023-09-30 15:58:31
 lastUpdated: 2023-10-01 12:13:13
+updated: 2023-12-30 17:01:42
 ---
 
 TBC
diff --git a/docs/dev/server-libs/fs.md b/docs/dev/server-libs/fs.md
index f9703e7b..28270e6b 100644
--- a/docs/dev/server-libs/fs.md
+++ b/docs/dev/server-libs/fs.md
@@ -1,9 +1,10 @@
 ---
 title: UIBUILDER's Filing System Library
-description: >
+description: |
   Manages everything to do with the server filing system.
 created: 2023-09-30 15:58:31
 lastUpdated: 2023-09-30 18:13:43
+updated: 2023-12-30 17:01:42
 ---
 
 TBC
diff --git a/docs/dev/server-libs/readme.md b/docs/dev/server-libs/readme.md
index 2d8929be..920f354c 100644
--- a/docs/dev/server-libs/readme.md
+++ b/docs/dev/server-libs/readme.md
@@ -1,9 +1,10 @@
 ---
 title: UIBUILDER's Server Libraries
-description: >
+description: |
   UIBUILDER includes a number of server and client libraries. This section of the documentation provides developer information on the server libraries.
 created: 2023-09-16 19:02:31
 lastUpdated: 2023-09-30 15:59:03
+updated: 2023-12-30 17:01:42
 ---
 
 These libraries are used by some or all of the uibuilder nodes.
diff --git a/docs/dev/server-libs/socket.md b/docs/dev/server-libs/socket.md
index bd9a0ee4..1045d3da 100644
--- a/docs/dev/server-libs/socket.md
+++ b/docs/dev/server-libs/socket.md
@@ -1,9 +1,10 @@
 ---
 title: Websocket Handling Library
-description: >
-   A singleton class that manages the interactions with Socket.IO and so provides all of the communications between Node-RED and front-end code.
+description: |
+  A singleton class that manages the interactions with Socket.IO and so provides all of the communications between Node-RED and front-end code.
 created: 2021-06-27 21:35:00
 lastUpdated: 2023-09-30 16:44:10
+updated: 2023-12-30 17:01:42
 ---
 
 `nodes/libs/socket.js`
diff --git a/docs/dev/server-libs/tilib.md b/docs/dev/server-libs/tilib.md
index 1162c229..84d5d92a 100644
--- a/docs/dev/server-libs/tilib.md
+++ b/docs/dev/server-libs/tilib.md
@@ -1,9 +1,10 @@
 ---
 title: General, non-uibuilder-specific function Library
-description: >
-   Utility library containing methods that are reusable, not just specific to UIBUILDER.
+description: |
+  Utility library containing methods that are reusable, not just specific to UIBUILDER.
 created: 2021-06-27 21:35:00
 lastUpdated: 2023-09-30 17:00:40
+updated: 2023-12-30 17:01:42
 ---
 
 `nodes/libs/tilib.js`
diff --git a/docs/dev/server-libs/uiblib.md b/docs/dev/server-libs/uiblib.md
index 41fc0244..561f2a02 100644
--- a/docs/dev/server-libs/uiblib.md
+++ b/docs/dev/server-libs/uiblib.md
@@ -1,9 +1,10 @@
 ---
 title: General, non-uibuilder-specific function Library
-description: >
-   Utility library containing methods that support UIBUILDER. The methods it contains are not generic and will require references to Node-RED objects to be passed.
+description: |
+  Utility library containing methods that support UIBUILDER. The methods it contains are not generic and will require references to Node-RED objects to be passed.
 created: 2021-06-27 21:35:00
 lastUpdated: 2023-12-19 16:20:58
+updated: 2023-12-30 17:01:42
 ---
 
 `nodes/libs/uiblib.js`
diff --git a/docs/dev/server-libs/web.md b/docs/dev/server-libs/web.md
index e0fe328e..e4a3bd84 100644
--- a/docs/dev/server-libs/web.md
+++ b/docs/dev/server-libs/web.md
@@ -1,9 +1,10 @@
 ---
 title: ExpressJS web server handler
-description: >
-   A singleton class that manages the interactions with ExpressJS and so provides all of the web server capabilities.
+description: |
+  A singleton class that manages the interactions with ExpressJS and so provides all of the web server capabilities.
 created: 2021-06-27 21:36:00
 lastUpdated: 2023-09-30 17:03:25
+updated: 2023-12-30 17:01:42
 ---
 
 `nodes/libs/web.js`
diff --git a/docs/dev/uibuilder-html.md b/docs/dev/uibuilder-html.md
index 1754c37a..8e0642ad 100644
--- a/docs/dev/uibuilder-html.md
+++ b/docs/dev/uibuilder-html.md
@@ -1,9 +1,10 @@
 ---
 title: Developer documentation for `uibuilder.html`
-description: >
-   Documents the processing of the html file that defines the Node-RED admin UI panel for uibuilder. Shown when double-clicking on a uibuilder node in a flow.
+description: |
+  Documents the processing of the html file that defines the Node-RED admin UI panel for uibuilder. Shown when double-clicking on a uibuilder node in a flow.
 created: 2019-06-15 14:26:00
 lastUpdated: 2023-11-03 17:55:25
+updated: 2023-12-30 17:01:41
 ---
 
 !> This document needs updating, it is incomplete.
diff --git a/docs/dev/uibuilder-js.md b/docs/dev/uibuilder-js.md
index 127f30bf..dddff24c 100644
--- a/docs/dev/uibuilder-js.md
+++ b/docs/dev/uibuilder-js.md
@@ -1,9 +1,10 @@
 ---
 title: Developer documentation for `uibuilder.js`
-description: >
-   `uibuilder.js` is the main file that defines the uibuilder node. It is this that is _required_ into Node-RED when it starts.
+description: |
+  `uibuilder.js` is the main file that defines the uibuilder node. It is this that is _required_ into Node-RED when it starts.
 created: 2019-05-18 18:25:00
 lastUpdated: 2022-11-26 16:28:09
+updated: 2023-12-30 17:01:41
 ---
 
 !> This document needs updating, it is incomplete.
diff --git a/docs/did-you-know.md b/docs/did-you-know.md
index 7f06faa3..c9b134fa 100644
--- a/docs/did-you-know.md
+++ b/docs/did-you-know.md
@@ -1,9 +1,9 @@
 ---
 title: Did You Know?
-description: >
+description: |
   Things you might not know about UIBUILDER.
 created: 2022-11-30 17:35:40
-lastUpdated: 2023-09-30 13:04:46
+updated: 2023-12-30 17:40:33
 ---
 
 * *There is a set of new client (front-end) libraries*
diff --git a/docs/docksify-howto.md b/docs/docksify-howto.md
index 13d16386..eccc1fe0 100644
--- a/docs/docksify-howto.md
+++ b/docs/docksify-howto.md
@@ -1,3 +1,7 @@
+---
+created: 2023-10-21 15:30:26
+updated: 2023-12-30 17:01:41
+---
 # How to manage UIBUILDER documentation using Docksify.
 
 The UIBUILDER documentation is made available as a GitHub web site and locally in Node-RED via its ExpressJS web server.
diff --git a/docs/docs.md b/docs/docs.md
new file mode 100644
index 00000000..3603b7de
--- /dev/null
+++ b/docs/docs.md
@@ -0,0 +1,148 @@
+---
+title: docs
+description: Auto-updated by Obsidian
+created: 2023-12-30 17:02
+updated: 2023-12-30 20:23:50
+author: Julian Knight
+tags: []
+---
+
+%% Begin Waypoint %%
+- **apis**
+	- [readme](./apis/readme.md)
+- **archived**
+	- [CHANGELOG-v1](./archived/CHANGELOG-v1.md)
+	- [CHANGELOG-v2](./archived/CHANGELOG-v2.md)
+	- [CHANGELOG-v3-v4](./archived/CHANGELOG-v3-v4.md)
+	- [CHANGELOG-v5](./archived/CHANGELOG-v5.md)
+	- [README-v1](./archived/README-v1.md)
+	- [sec-process](./archived/sec-process.md)
+	- [security](./archived/security.md)
+	- [securityjs](./archived/securityjs.md)
+	- [v2-breaking-changes](./archived/v2-breaking-changes.md)
+	- [V2-PROGRESS](./archived/V2-PROGRESS.md)
+- [browser-refresh](./browser-refresh.md)
+- **client-docs**
+	- [config-driven-ui](./client-docs/config-driven-ui.md)
+	- [control-from-node-red](./client-docs/control-from-node-red.md)
+	- [custom-components](./client-docs/custom-components.md)
+	- [custom-events](./client-docs/custom-events.md)
+	- [fe-router](./client-docs/fe-router.md)
+	- [features](./client-docs/features.md)
+	- [functions](./client-docs/functions.md)
+	- [how-to-use](./client-docs/how-to-use.md)
+	- [readme](./client-docs/readme.md)
+	- [technical-reference](./client-docs/technical-reference.md)
+	- [troubleshooting](./client-docs/troubleshooting.md)
+	- [uib-brand-css](./client-docs/uib-brand-css.md)
+	- [uibuilderfe-library](./client-docs/uibuilderfe-library.md)
+	- [variables](./client-docs/variables.md)
+- [components](./components.md)
+- [creating-templates](./creating-templates.md)
+- **dev**
+	- [build-steps](./dev/build-steps.md)
+	- **client-libs**
+		- [readme](./dev/client-libs/readme.md)
+		- [ui](./dev/client-libs/ui.md)
+		- [uibuilder-module](./dev/client-libs/uibuilder-module.md)
+		- [uibuilderfe](./dev/client-libs/uibuilderfe.md)
+	- **editor-libs**
+		- [readme](./dev/editor-libs/readme.md)
+		- [ti-common-css](./dev/editor-libs/ti-common-css.md)
+		- [ti-common](./dev/editor-libs/ti-common.md)
+	- [README](./dev/README.md)
+	- [regression-tests](./dev/regression-tests.md)
+	- **server-libs**
+		- [admin-api-v2](./dev/server-libs/admin-api-v2.md)
+		- [admin-api-v3](./dev/server-libs/admin-api-v3.md)
+		- [fs](./dev/server-libs/fs.md)
+		- [readme](./dev/server-libs/readme.md)
+		- [socket](./dev/server-libs/socket.md)
+		- [tilib](./dev/server-libs/tilib.md)
+		- [uiblib](./dev/server-libs/uiblib.md)
+		- [web](./dev/server-libs/web.md)
+	- [uibuilder-html](./dev/uibuilder-html.md)
+	- [uibuilder-js](./dev/uibuilder-js.md)
+- **diagrams**
+
+- [did-you-know](./did-you-know.md)
+- [docksify-howto](./docksify-howto.md)
+- **elements**
+	- [forms](./elements/forms.md)
+	- [html](./elements/html.md)
+	- [lists](./elements/lists.md)
+	- [markdown](./elements/markdown.md)
+	- [other](./elements/other.md)
+	- [tables](./elements/tables.md)
+- [front-end-build-snowpack](./front-end-build-snowpack.md)
+- [front-end-builds](./front-end-builds.md)
+- [front-end-no-build](./front-end-no-build.md)
+- [glossary](./glossary.md)
+- **how-to**
+	- [cache-node](./how-to/cache-node.md)
+	- [change-element](./how-to/change-element.md)
+	- [changing-uibroot](./how-to/changing-uibroot.md)
+	- [css-selectors](./how-to/css-selectors.md)
+	- [function-node](./how-to/function-node.md)
+	- [instance-apis](./how-to/instance-apis.md)
+	- [instance-routes](./how-to/instance-routes.md)
+	- [list-node](./how-to/list-node.md)
+	- [live-reload-dev-server](./how-to/live-reload-dev-server.md)
+	- [load-external-files](./how-to/load-external-files.md)
+	- [README](./how-to/README.md)
+	- [sender-node](./how-to/sender-node.md)
+	- [use-low-code-in-fe](./how-to/use-low-code-in-fe.md)
+	- [what-can-i-do](./how-to/what-can-i-do.md)
+- **images**
+
+- **jsdoc**
+	- [uibuilder.module.js](./jsdoc/uibuilder.module.js.md)
+- [nginx-auth](./nginx-auth.md)
+- [nginx-example-config](./nginx-example-config.md)
+- **nodes**
+	- [README](./nodes/README.md)
+	- [uib-cache](./nodes/uib-cache.md)
+	- [uib-element](./nodes/uib-element.md)
+	- [uib-html](./nodes/uib-html.md)
+	- [uib-save](./nodes/uib-save.md)
+	- [uib-sender](./nodes/uib-sender.md)
+	- [uib-tag](./nodes/uib-tag.md)
+	- [uib-update](./nodes/uib-update.md)
+	- [uibuilder](./nodes/uibuilder.md)
+- [pre-defined-msgs](./pre-defined-msgs.md)
+- **processes**
+	- [add-library](./processes/add-library.md)
+	- [chk-libraries-on-startup](./processes/chk-libraries-on-startup.md)
+	- [client-connect](./processes/client-connect.md)
+	- [package-management-process](./processes/package-management-process.md)
+	- [README](./processes/README.md)
+	- [url-change-rename](./processes/url-change-rename.md)
+- [README](./README.md)
+- **roadmap**
+	- [Future](./roadmap/Future.md)
+	- [Maybe](./roadmap/Maybe.md)
+	- [Old](./roadmap/Old.md)
+	- [readme](./roadmap/readme.md)
+	- [Rejected](./roadmap/Rejected.md)
+- **[security](./security/security.md)**
+	- [securing-data](./security/securing-data.md)
+	- [uib-security-nginx](./security/uib-security-nginx.md)
+- [svelte](./svelte.md)
+- [uib-configuration](./uib-configuration.md)
+- [uib-event-comms](./uib-event-comms.md)
+- [uib-node-configuration](./uib-node-configuration.md)
+- **UPDATES**
+	- [2302131 README.md](./UPDATES/2302131%20README.md.md)
+	- [2302141 walkthrough1](./UPDATES/2302141%20walkthrough1.md)
+	- [2302151msg](./UPDATES/2302151msg.md)
+	- [2302201 uibuilder](./UPDATES/2302201%20uibuilder.md)
+- **using**
+	- [why-uibuilder](./using/why-uibuilder.md)
+	- [zero-code-ui](./using/zero-code-ui.md)
+- [vue-complexities](./vue-complexities.md)
+- [vue-component-handling](./vue-component-handling.md)
+- [walkthrough1](./walkthrough1.md)
+- [web-app-workflow](./web-app-workflow.md)
+- [what-makes](./what-makes.md)
+
+%% End Waypoint %%
diff --git a/docs/elements/forms.md b/docs/elements/forms.md
index 6566b005..39ad2969 100644
--- a/docs/elements/forms.md
+++ b/docs/elements/forms.md
@@ -1,9 +1,10 @@
 ---
 title: Generate input forms from simple input data
-description: >
-   Turns an array/object of objects into a simple, accessible form.
+description: |
+  Turns an array/object of objects into a simple, accessible form.
 created: 2023-02-24 16:49:49
 lastUpdated: 2023-08-19 17:01:20
+updated: 2023-12-30 17:01:41
 ---
 
 The `uib-element` node, set to the "Simple Form" type, outputs a simple but accessible Form with inputs and buttons. Most HTML features of inputs and forms are supported.
diff --git a/docs/elements/html.md b/docs/elements/html.md
index f0b5228f..63e059c6 100644
--- a/docs/elements/html.md
+++ b/docs/elements/html.md
@@ -1,9 +1,10 @@
 ---
 title: Insert raw HTML into a web page
-description: >
-   The HTML element type passes raw HTML string input to the output.
+description: |
+  The HTML element type passes raw HTML string input to the output.
 created: 2023-02-24 16:49:49
 lastUpdated: 2023-09-01 17:02:44
+updated: 2023-12-30 17:01:41
 ---
 
 No optional heading is allowed, headings can be defined in the HTML. The inserted HTML is wrapped in a `<div>`.
diff --git a/docs/elements/lists.md b/docs/elements/lists.md
index 479ae8a8..30e7c69a 100644
--- a/docs/elements/lists.md
+++ b/docs/elements/lists.md
@@ -1,9 +1,10 @@
 ---
 title: Generate various list types from simple input data
-description: >
-   Turns an array/object simple, accessible list.
+description: |
+  Turns an array/object simple, accessible list.
 created: 2023-02-24 16:49:49
 lastUpdated: 2023-02-24 16:49:54
+updated: 2023-12-30 17:01:41
 ---
 
 *(This document is a work-in-progress, it is not complete)*
diff --git a/docs/elements/markdown.md b/docs/elements/markdown.md
index 46e58995..6b861e18 100644
--- a/docs/elements/markdown.md
+++ b/docs/elements/markdown.md
@@ -1,9 +1,10 @@
 ---
 title: Insert Markdown into a web page
-description: >
-   The Markdown element type passes a Markdown string input to the output. No optional heading is allowed. The Markdown is converted to HTML in the client browser.
+description: |
+  The Markdown element type passes a Markdown string input to the output. No optional heading is allowed. The Markdown is converted to HTML in the client browser.
 created: 2023-02-24 16:49:49
 lastUpdated: 2023-09-01 17:02:54
+updated: 2023-12-30 17:01:41
 ---
 
 No optional heading is allowed, headings can be defined in the Markdown. The inserted HTML is wrapped in a `<div>`.
diff --git a/docs/elements/other.md b/docs/elements/other.md
index 31086bb3..b775bcc8 100644
--- a/docs/elements/other.md
+++ b/docs/elements/other.md
@@ -1,9 +1,10 @@
 ---
 title: Generate miscelaneous HTML elements from simple input data
-description: >
-   Page headings, text boxes, etc.
+description: |
+  Page headings, text boxes, etc.
 created: 2023-02-24 16:49:49
 lastUpdated: 2023-08-19 17:00:55
+updated: 2023-12-30 17:01:41
 ---
 
 Note that `msg.payload` as the data input can be changed to any msg property, a context variable, manually defined string, number, or JSON or dynamic JSONata as desired in the node's settings.
diff --git a/docs/elements/tables.md b/docs/elements/tables.md
index 765b3846..5fe1dffe 100644
--- a/docs/elements/tables.md
+++ b/docs/elements/tables.md
@@ -1,10 +1,10 @@
 ---
 title: Generate tables from simple input data
-description: >
-   Turns an array/object of objects into a visible simple, accessible table. Each property in the inner object becomes
-   a column in the resulting table (only the first entry is used to create the columns).
+description: |
+  Turns an array/object of objects into a visible simple, accessible table. Each property in the inner object becomes a column in the resulting table (only the first entry is used to create the columns).
 created: 2023-02-24 16:49:49
 lastUpdated: 2023-02-24 16:49:54
+updated: 2023-12-30 17:01:41
 ---
 
 *(This document is a work-in-progress, it is not complete)*
diff --git a/docs/front-end-build-snowpack.md b/docs/front-end-build-snowpack.md
index 3ac05324..e057611c 100644
--- a/docs/front-end-build-snowpack.md
+++ b/docs/front-end-build-snowpack.md
@@ -1,9 +1,10 @@
 ---
 title: How-to configure and use a front-end build step using Snowpack
-description: >
-   Describes how to use Snowpack to build your front-end code.
+description: |
+  Describes how to use Snowpack to build your front-end code.
 created: 2021-04-22 09:53:00
 lastUpdated: 2023-09-30 13:04:54
+updated: 2023-12-30 17:01:41
 ---
 
 Status: **Incomplete**
diff --git a/docs/front-end-builds.md b/docs/front-end-builds.md
index 05086721..d72ad3c0 100644
--- a/docs/front-end-builds.md
+++ b/docs/front-end-builds.md
@@ -1,9 +1,10 @@
 ---
 title: Front-End Build Steps and Tools
-description: >
-   Describes how to use a build step to transpile and optimise your front-end code.
+description: |
+  Describes how to use a build step to transpile and optimise your front-end code.
 created: 2021-04-22 09:53:00
 lastUpdated: 2023-09-30 13:05:07
+updated: 2023-12-30 17:01:41
 ---
 
 A build step is simply a way to take things that your browser wont understand directly (like .vue, .jsx files)
diff --git a/docs/front-end-no-build.md b/docs/front-end-no-build.md
index 9337da2b..e4ea7399 100644
--- a/docs/front-end-no-build.md
+++ b/docs/front-end-no-build.md
@@ -1,9 +1,10 @@
 ---
 title: Avoiding build steps for front-end development
-description: >
+description: |
   What ways are there to avoid having a build step (transpile, compile) when developing front-end code?
 created: 2022-02-15 15:27:05
 lastUpdated: 2022-02-15 16:25:08
+updated: 2023-12-30 17:01:41
 ---
 
 A build step is simply a way to take things that your browser wont understand directly (like .vue, .jsx files)
diff --git a/docs/glossary.md b/docs/glossary.md
index 18fb3ea4..c697df99 100644
--- a/docs/glossary.md
+++ b/docs/glossary.md
@@ -1,9 +1,10 @@
 ---
 title: UIBUILDER Glossary
-description: >
-   Terms used in this documentation and their meanings.
+description: |
+  Terms used in this documentation and their meanings.
 created: 2019-05-27 17:13:00
 lastUpdated: 2023-09-30 13:05:48
+updated: 2023-12-30 17:01:41
 ---
 
 | Term         | Meaning                                                      |
diff --git a/docs/how-to/README.md b/docs/how-to/README.md
index 06804019..cc97ad69 100644
--- a/docs/how-to/README.md
+++ b/docs/how-to/README.md
@@ -1,9 +1,10 @@
 ---
 title: Hints and Tips for using uibuilder
-description: >
-   A collection of FAQ's, how-to's, hints and tips.
+description: |
+  A collection of FAQ's, how-to's, hints and tips.
 created: 2023-01-04 20:27:33
 lastUpdated: 2023-01-04 20:27:38
+updated: 2023-12-30 17:01:41
 ---
 
 * [Loading external files](how-to/load-external-files.md) - including HTML, styles, scripts, and web components.
diff --git a/docs/how-to/cache-node.md b/docs/how-to/cache-node.md
index d5bc0ae3..d31d453f 100644
--- a/docs/how-to/cache-node.md
+++ b/docs/how-to/cache-node.md
@@ -1,10 +1,10 @@
 ---
 title: Using the Cache node
-description: >
-   Describes how and why to use the uib-cache node. How to cache and replay messages when a new uibuilder client loads
-   or reloads a uibuilder supported page.
+description: |
+  Describes how and why to use the uib-cache node. How to cache and replay messages when a new uibuilder client loads or reloads a uibuilder supported page.
 created: 2022-01-07 22:01:49
 lastUpdated: 2023-03-04 15:36:37
+updated: 2023-12-30 17:01:41
 ---
 
 Moved to [nodes/uib-cache](nodes/uib-cache.md)
diff --git a/docs/how-to/change-element.md b/docs/how-to/change-element.md
index 60d5bc06..875fb9a0 100644
--- a/docs/how-to/change-element.md
+++ b/docs/how-to/change-element.md
@@ -1,9 +1,10 @@
 ---
 title: Change attributes and content of a UI element
-description: >
-   Various ways to easily change either the attributes or content of a UI element either from Node-RED or from front-end code.
+description: |
+  Various ways to easily change either the attributes or content of a UI element either from Node-RED or from front-end code.
 created: 2023-12-09 14:03:57
 lastUpdated: 2023-12-09 14:04:02
+updated: 2023-12-30 17:01:41
 ---
 
 When using frameworks such as Vue, REACT, etc. Including Node-RED's Dashboard, changable content is usually represented by a managed variable and included in the UI using something like `<p>{{varname}}</p>`. With UIBUILDER, this is unnecessary. HTML already has everything required to do easy updates.
diff --git a/docs/how-to/changing-uibroot.md b/docs/how-to/changing-uibroot.md
index ae011bf7..5f36d90e 100644
--- a/docs/how-to/changing-uibroot.md
+++ b/docs/how-to/changing-uibroot.md
@@ -1,9 +1,10 @@
 ---
 title: Changing the uibuilder master root folder (uibRoot) in settings.js
-description: >
-   Describes how to change uibRoot and what happens when you do.
+description: |
+  Describes how to change uibRoot and what happens when you do.
 created: 2021-07-03 20:46:33
 lastUpdated: 2021-07-03 22:21:56
+updated: 2023-12-30 17:01:41
 ---
 
 ## What is the uibRoot folder?
diff --git a/docs/how-to/css-selectors.md b/docs/how-to/css-selectors.md
index 05a10a20..05f64ce4 100644
--- a/docs/how-to/css-selectors.md
+++ b/docs/how-to/css-selectors.md
@@ -1,9 +1,10 @@
 ---
 title: CSS Selectors
-description: >
-   How to make use of them with uibuilder and some typical examples.
+description: |
+  How to make use of them with uibuilder and some typical examples.
 created: 2023-04-02 17:34:58
 lastUpdated: 2023-04-02 18:47:50
+updated: 2023-12-30 17:01:41
 ---
 
 [CSS Selectors](https://developer.mozilla.org/en-US/docs/Learn/CSS/Building_blocks/Selectors) are now the main generic way of selecting one or more specific elements on a web page.
diff --git a/docs/how-to/function-node.md b/docs/how-to/function-node.md
index 695bf4ea..c7d6a915 100644
--- a/docs/how-to/function-node.md
+++ b/docs/how-to/function-node.md
@@ -1,10 +1,10 @@
 ---
 title: Manipulating msg._ui using a Node-RED function node
-description: >
-   How to make changes to msg._ui "manually" in a function node. Particularly useful to be able to make
-   tweaks to the output of the zero-code nodes.
+description: |
+  How to make changes to msg._ui "manually" in a function node. Particularly useful to be able to make tweaks to the output of the zero-code nodes.
 created: 2023-08-23 09:33:45
 lastUpdated: 2023-08-23 11:12:24
+updated: 2023-12-30 17:01:41
 ---
 
 **_TO-DO_**
diff --git a/docs/how-to/instance-apis.md b/docs/how-to/instance-apis.md
index 53f56499..e54daec2 100644
--- a/docs/how-to/instance-apis.md
+++ b/docs/how-to/instance-apis.md
@@ -1,10 +1,10 @@
 ---
 title: How to use Instance API's
-description: >
-   Instance API's can be defined for each uibuilder node added to your flows. They run on the Node-RED server and are 
-   designed to provide server-side compute functions for your data-driven user interfaces.
+description: |
+  Instance API's can be defined for each uibuilder node added to your flows. They run on the Node-RED server and are  designed to provide server-side compute functions for your data-driven user interfaces.
 created: 2022-01-17 01:45:24
 lastUpdated: 2022-01-17 20:04:17
+updated: 2023-12-30 17:01:41
 ---
 
 Notes:
diff --git a/docs/how-to/instance-routes.md b/docs/how-to/instance-routes.md
index be87b2df..96305cf4 100644
--- a/docs/how-to/instance-routes.md
+++ b/docs/how-to/instance-routes.md
@@ -1,9 +1,10 @@
 ---
 title: Instance-specific Routes
-description: >
-   How to make ExpressJS routes for an individual instance of a uibuilder node.
+description: |
+  How to make ExpressJS routes for an individual instance of a uibuilder node.
 created: 2023-05-07 13:27:12
 lastUpdated: 2023-05-07 13:27:17
+updated: 2023-12-30 17:01:41
 ---
 
 ## Summary
diff --git a/docs/how-to/list-node.md b/docs/how-to/list-node.md
index d6f0a00f..ccd8a045 100644
--- a/docs/how-to/list-node.md
+++ b/docs/how-to/list-node.md
@@ -1,9 +1,10 @@
 ---
 title: Using the List node
-description: >
-   Describes how and why to use the uib-list node and how to create a list in your web page from an array.
+description: |
+  Describes how and why to use the uib-list node and how to create a list in your web page from an array.
 created: 2022-06-28
 lastUpdated: 2022-06-28 15:53:13
+updated: 2023-12-30 17:01:41
 ---
 
 The `uib-list` node was added in uibuilder v5.1 as an experimental version. 
diff --git a/docs/how-to/live-reload-dev-server.md b/docs/how-to/live-reload-dev-server.md
index cad762d0..ac0dc03a 100644
--- a/docs/how-to/live-reload-dev-server.md
+++ b/docs/how-to/live-reload-dev-server.md
@@ -1,9 +1,10 @@
 ---
 title: Create a live-reloading dev server with uibuilder
-description: >
-   Many build tools provide live dev servers. When working with uibuilder, we can craft that in Node-RED!
+description: |
+  Many build tools provide live dev servers. When working with uibuilder, we can craft that in Node-RED!
 created: 2023-08-26 16:21:23
 lastUpdated: 2023-08-26 16:21:40
+updated: 2023-12-30 17:01:41
 ---
 
 All that is needed is a small flow using 1 or more `watch` nodes to listen for changes to key files. When a change is detected, send a reload ._ui command to your uibuilder node.
diff --git a/docs/how-to/load-external-files.md b/docs/how-to/load-external-files.md
index 1f309b55..48bbf7e2 100644
--- a/docs/how-to/load-external-files.md
+++ b/docs/how-to/load-external-files.md
@@ -1,9 +1,10 @@
 ---
 title: How to load external files using uibuilder
-description: >
-   Include external HTML, styles, JavaScript and ECMA web components from external files.
+description: |
+  Include external HTML, styles, JavaScript and ECMA web components from external files.
 created: 2023-01-04 20:27:33
 lastUpdated: 2023-03-20 20:34:52
+updated: 2023-12-30 17:01:41
 ---
 
 > [!NOTE]
diff --git a/docs/how-to/sender-node.md b/docs/how-to/sender-node.md
index a52853d4..8f0eae6a 100644
--- a/docs/how-to/sender-node.md
+++ b/docs/how-to/sender-node.md
@@ -1,9 +1,10 @@
 ---
 title: Using the Sender node
-description: >
-   Describes how and why to use the uib-sender node and how to return messages from your front-end code.
+description: |
+  Describes how and why to use the uib-sender node and how to return messages from your front-end code.
 created: 2021-12-31 15:31:06
 lastUpdated: 2021-12-31 15:31:11
+updated: 2023-12-30 17:01:41
 ---
 
 The sender node was added in uibuilder v5. It provides an easy method of sending messages to your front-end
diff --git a/docs/how-to/use-low-code-in-fe.md b/docs/how-to/use-low-code-in-fe.md
index 4252f02c..64db769b 100644
--- a/docs/how-to/use-low-code-in-fe.md
+++ b/docs/how-to/use-low-code-in-fe.md
@@ -1,10 +1,10 @@
 ---
 title: Define and update elements in the browser using low-code
-description: >
-   Some front-end code as an example of using UIBUILDER's low-code capabilities in your front-end (browser) code to create an on-screen element dynamically.
-   In this case, a single select drop-down box.
+description: |
+  Some front-end code as an example of using UIBUILDER's low-code capabilities in your front-end (browser) code to create an on-screen element dynamically. In this case, a single select drop-down box.
 created: 2023-11-18 17:38:16
 lastUpdated: 2023-11-18 17:38:22
+updated: 2023-12-30 17:01:41
 ---
 
 
diff --git a/docs/how-to/what-can-i-do.md b/docs/how-to/what-can-i-do.md
index 86020a89..0c4b7c8f 100644
--- a/docs/how-to/what-can-i-do.md
+++ b/docs/how-to/what-can-i-do.md
@@ -1,10 +1,11 @@
 ---
 title: What can I do with uibuilder?
-description: >
-   A summary of some of the key things that can be done by combining uibuilder with Node-RED.
+description: |
+  A summary of some of the key things that can be done by combining uibuilder with Node-RED.
 created: 2023-03-06 10:04:37
 lastUpdated: 2023-03-06 10:04:42
 author: Julian Knight (Totally Information)
+updated: 2023-12-30 17:01:41
 ---
 
 * Use my data in Node-RED (or in front-end code) to generate standard or custom user-interfaces (UI's, web pages). I don't have to learn the details of how to create HTML elements.
diff --git a/docs/index.html b/docs/index.html
index d37e176b..b16a4ec4 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -121,15 +121,30 @@
             max-width: 100%; 
         } */
     </style>
+
+    <script defer src="https://cdn.jsdelivr.net/npm/docsify/lib/docsify.min.js"></script>
+    <script defer src="https://cdn.jsdelivr.net/npm/docsify/lib/plugins/search.min.js"></script>
+    <script defer src="https://cdn.jsdelivr.net/npm/docsify-darklight-theme/dist/docsify-themeable/main.min.js" type="text/javascript"></script>
+    <script defer src="https://cdn.jsdelivr.net/npm/docsify-darklight-theme/dist/docsify-themeable/index.min.js" type="text/javascript"></script>
+    <script defer src="https://cdn.jsdelivr.net/npm/prismjs/components/prism-json.min.js"></script>
+    <script defer src="https://cdn.jsdelivr.net/npm/prismjs/components/prism-nginx.min.js"></script>
+    <script defer src="https://cdn.jsdelivr.net/npm/docsify/lib/plugins/front-matter.min.js"></script>
+    <script defer src="https://cdn.jsdelivr.net/npm/docsify-mustache/dist/docsify-mustache.min.js"></script>
+    <script defer src="https://cdn.jsdelivr.net/npm/docsify-pagination/dist/docsify-pagination.min.js"></script>
+    <script defer src="https://cdn.jsdelivr.net/npm/docsify-plugin-flexible-alerts/dist/docsify-plugin-flexible-alerts.min.js"></script>
+    <script defer src="https://cdn.jsdelivr.net/npm/docsify-copy-code/dist/docsify-copy-code.min.js"></script>
+
 </head><body>
     <div id="app">Loading ...</div>
     <script src="https://cdn.jsdelivr.net/npm/docsify-edit-on-github/index.min.js"></script>
     <script>
         'use strict'
         window.$docsify = { //  eslint-disable-line no-undef
+            loadSidebar: '.config/sidebar.md',
             name: 'UIBUILDER Documentation v6',
             repo: 'TotallyInformation/node-red-contrib-uibuilder',
-            coverpage: true,
+            // coverpage: true,
+            coverpage: '.config/coverpage.md',
             onlyCover: false,
             // homepage: 'README.md',
 
@@ -139,7 +154,6 @@
             autoHeader: false,
             logo: '/images/node-lblue-125x125.png',
             auto2top: true,
-            loadSidebar: './-sidebar.md',
             alias: {
                 // Moved pages
                 '/dev/socket-js.*': '/dev/server-libs/socket.md',
@@ -148,9 +162,8 @@
                 '/dev/web-js.*': '/dev/server-libs/web.md',
                 '/dev/uibuilderfe-js.*': '/dev/client-libs/uibuilderfe.md',
                 '/front-end-library.*': '/client-docs/uibuilderfe-library.md',
+                // '/roadmap.*': '/roadmap/readme.md',
 
-                '/.*/_sidebar.md': '/-sidebar.md', // use the same sidebar everywhere. See #301
-                '/.*/-sidebar.md': '/-sidebar.md', // use the same sidebar everywhere. See #301
                 '.*?/changelog': 'https://raw.githubusercontent.com/TotallyInformation/node-red-contrib-uibuilder/main/CHANGELOG.md',
                 '.*?/uibhome': 'https://raw.githubusercontent.com/TotallyInformation/node-red-contrib-uibuilder/main/README.md',
                 '/docs/(.*)': '/$1',
@@ -165,7 +178,8 @@
                 crossChapter: true,
                 crossChapterText: true,
             },
-            notFoundPage: true,
+            // notFoundPage: true,
+            notFoundPage: '.config/404.md',
 
             mustache: {
                 noPackage: true,
@@ -226,12 +240,12 @@
                                 yearFrom = mydate.getFullYear()
                             }
 
-                            if ( vm.frontmatter.lastUpdated ) { // uib/IT Stds docs
-                                mydate = new Date(vm.frontmatter.lastUpdated)
-                                yearTo = mydate.getFullYear()
-                            } else if ( vm.frontmatter.updated ) { // Obsidian
+                            if ( vm.frontmatter.updated ) { // Obsidian
                                 mydate = new Date(vm.frontmatter.updated)
                                 yearTo = mydate.getFullYear()
+                            } else if ( vm.frontmatter.lastUpdated ) { // uib/IT Stds docs
+                                mydate = new Date(vm.frontmatter.lastUpdated)
+                                yearTo = mydate.getFullYear()
                             } else if ( vm.frontmatter.Lastmod ) { // Hugo
                                 mydate = new Date(vm.frontmatter.Lastmod)
                                 yearTo = mydate.getFullYear()
@@ -265,15 +279,4 @@
             ],
         }
     </script>
-    <script src="https://cdn.jsdelivr.net/npm/docsify/lib/docsify.min.js"></script>
-    <script src="https://cdn.jsdelivr.net/npm/docsify/lib/plugins/search.min.js"></script>
-    <script src="https://cdn.jsdelivr.net/npm/docsify-darklight-theme/dist/docsify-themeable/main.min.js" type="text/javascript"></script>
-    <script src="https://cdn.jsdelivr.net/npm/docsify-darklight-theme/dist/docsify-themeable/index.min.js" type="text/javascript"></script>
-    <script src="https://cdn.jsdelivr.net/npm/prismjs/components/prism-json.min.js"></script>
-    <script src="https://cdn.jsdelivr.net/npm/prismjs/components/prism-nginx.min.js"></script>
-    <script src="https://cdn.jsdelivr.net/npm/docsify/lib/plugins/front-matter.min.js"></script>
-    <script src="https://cdn.jsdelivr.net/npm/docsify-mustache/dist/docsify-mustache.min.js"></script>
-    <script src="https://cdn.jsdelivr.net/npm/docsify-pagination/dist/docsify-pagination.min.js"></script>
-    <script src="https://cdn.jsdelivr.net/npm/docsify-plugin-flexible-alerts/dist/docsify-plugin-flexible-alerts.min.js"></script>
-    <script src="https://cdn.jsdelivr.net/npm/docsify-copy-code/dist/docsify-copy-code.min.js"></script>
 </body></html>
diff --git a/docs/jsdoc/uibuilder.module.js.md b/docs/jsdoc/uibuilder.module.js.md
index e212b40c..b8c27d49 100644
--- a/docs/jsdoc/uibuilder.module.js.md
+++ b/docs/jsdoc/uibuilder.module.js.md
@@ -1,3 +1,7 @@
+---
+created: 2023-03-06 10:59:23
+updated: 2023-12-30 17:01:41
+---
 ## Members
 
 <dl>
diff --git a/docs/nginx-auth.md b/docs/nginx-auth.md
index d9a31ed2..e626f871 100644
--- a/docs/nginx-auth.md
+++ b/docs/nginx-auth.md
@@ -1,3 +1,7 @@
+---
+created: 2022-09-16 15:40:24
+updated: 2023-12-30 17:01:41
+---
 
 ## Basic authentication
 
diff --git a/docs/nginx-example-config.md b/docs/nginx-example-config.md
index 77bdc4ba..83b1f6ed 100644
--- a/docs/nginx-example-config.md
+++ b/docs/nginx-example-config.md
@@ -1,9 +1,10 @@
 ---
 title: NGINX Example Config
-description: >
-   An example of a reasonably secure configuration for Node-RED and UIBUILDER.
+description: |
+  An example of a reasonably secure configuration for Node-RED and UIBUILDER.
 created: 2022-02-21 13:05:38
 lastUpdated: 2023-09-30 13:06:35
+updated: 2023-12-30 17:01:41
 ---
 
 !> Status: Incomplete
diff --git a/docs/nodes/README.md b/docs/nodes/README.md
index 17cac3b2..2552ad81 100644
--- a/docs/nodes/README.md
+++ b/docs/nodes/README.md
@@ -1,9 +1,10 @@
 ---
 title: Description of uibuilder's nodes
-description: >
-   Each node has a specific purpose. The main uibuilder node will always be needed. The other nodes play a supporting role.
+description: |
+  Each node has a specific purpose. The main uibuilder node will always be needed. The other nodes play a supporting role.
 created: 2023-08-23 10:44:10
 lastUpdated: 2023-08-23 11:05:19
+updated: 2023-12-30 17:01:41
 ---
 
 * [`uibuilder`](nodes/uibuilder.md) - The main node. You need at least one of these in order to make full use of all of the features.
diff --git a/docs/nodes/uib-cache.md b/docs/nodes/uib-cache.md
index 8f8d6fec..27284ee8 100644
--- a/docs/nodes/uib-cache.md
+++ b/docs/nodes/uib-cache.md
@@ -1,9 +1,10 @@
 ---
 title: uib-cache - Cache and replay data
-description: >
-   Usage and configuration.
+description: |
+  Usage and configuration.
 created: 2023-02-05 16:31:39
 lastUpdated: 2023-10-28 15:57:45
+updated: 2023-12-30 17:01:41
 ---
 
 The cache node was added in uibuilder v5. It provides an easy method of saving messages in a cache and replaying them
diff --git a/docs/nodes/uib-element.md b/docs/nodes/uib-element.md
index acf02d2b..6b714514 100644
--- a/docs/nodes/uib-element.md
+++ b/docs/nodes/uib-element.md
@@ -1,9 +1,10 @@
 ---
 title: uib-element - Zero-code web UI creation
-description: >
-   Create `msg._ui` configuration data from simple inputs. This can be easily turned into HTML by the uibuilder client library. All that is needed is to send the data to a uibuilder node and the UI will be built dynamically.
+description: |
+  Create `msg._ui` configuration data from simple inputs. This can be easily turned into HTML by the uibuilder client library. All that is needed is to send the data to a uibuilder node and the UI will be built dynamically.
 created: 2023-02-05 16:31:39
 lastUpdated: 2023-02-22 09:01:47
+updated: 2023-12-30 17:01:41
 ---
 
 *(This document is a work-in-progress, it is not complete)*
diff --git a/docs/nodes/uib-html.md b/docs/nodes/uib-html.md
index 995d49bf..aa083b3c 100644
--- a/docs/nodes/uib-html.md
+++ b/docs/nodes/uib-html.md
@@ -1,9 +1,10 @@
 ---
 title: uib-html - Hydrate uibuilder msg._ui configuration data to HTML
-description: >
-   Usage and configuration.
+description: |
+  Usage and configuration.
 created: 2023-02-05 16:31:39
 lastUpdated: 2023-10-28 15:33:18
+updated: 2023-12-30 17:01:41
 ---
 
 Available since uibuilder v6.6.0.
diff --git a/docs/nodes/uib-save.md b/docs/nodes/uib-save.md
index f6425167..54760bfa 100644
--- a/docs/nodes/uib-save.md
+++ b/docs/nodes/uib-save.md
@@ -1,9 +1,10 @@
 ---
 title: uib-save - Save files to a uibuilder instance folder
-description: >
-   Usage and configuration.
+description: |
+  Usage and configuration.
 created: 2023-02-05 16:31:39
 lastUpdated: 2023-11-10 13:48:13
+updated: 2023-12-30 17:01:41
 ---
 
 Available since uibuilder v6.6.
diff --git a/docs/nodes/uib-sender.md b/docs/nodes/uib-sender.md
index 5f1579b9..aa65686d 100644
--- a/docs/nodes/uib-sender.md
+++ b/docs/nodes/uib-sender.md
@@ -1,9 +1,10 @@
 ---
 title: uib-sender - Send a msg to a given uibuilder node and optionally receive replies
-description: >
-   Usage and configuration.
+description: |
+  Usage and configuration.
 created: 2023-02-05 16:31:39
 lastUpdated: 2023-02-05 16:31:46
+updated: 2023-12-30 17:01:41
 ---
 
 TBC.
diff --git a/docs/nodes/uib-tag.md b/docs/nodes/uib-tag.md
index eeade468..763020ab 100644
--- a/docs/nodes/uib-tag.md
+++ b/docs/nodes/uib-tag.md
@@ -1,9 +1,10 @@
 ---
 title: uib-tag - Zero-code web UI creation of a single HTML tag
-description: >
-   Create `msg._ui` configuration data that adds a single HTML or web component element (tag) to the browser UI.
+description: |
+  Create `msg._ui` configuration data that adds a single HTML or web component element (tag) to the browser UI.
 created: 2023-08-23 09:30:13
 lastUpdated: 2023-11-10 15:05:05
+updated: 2023-12-30 17:01:41
 ---
 
 *(This document is a work-in-progress, it is not complete)*
diff --git a/docs/nodes/uib-update.md b/docs/nodes/uib-update.md
index a30bc892..5c109a14 100644
--- a/docs/nodes/uib-update.md
+++ b/docs/nodes/uib-update.md
@@ -1,9 +1,10 @@
 ---
 title: uib-update - Update the attributes, properties or slot content of an existing element
-description: >
-   Zero-code UI updates from Node-RED flows.
+description: |
+  Zero-code UI updates from Node-RED flows.
 created: 2023-02-05 16:31:39
 lastUpdated: 2023-11-14 20:24:30
+updated: 2023-12-30 17:01:41
 ---
 
 Outputs msg._ui low-code config data that the uibuilder client library can turn into full HTML. (Same format as the `uib-element` node)
diff --git a/docs/nodes/uibuilder.md b/docs/nodes/uibuilder.md
index d9001861..88887b54 100644
--- a/docs/nodes/uibuilder.md
+++ b/docs/nodes/uibuilder.md
@@ -1,9 +1,10 @@
 ---
 title: The main uibuilder node
-description: >
-   Usage and configuration.
+description: |
+  Usage and configuration.
 created: 2023-02-05 16:31:39
 lastUpdated: 2023-02-05 16:31:46
+updated: 2023-12-30 17:01:41
 ---
 
 > [!note]
diff --git a/docs/pre-defined-msgs.md b/docs/pre-defined-msgs.md
index 655b46fa..0e09ae59 100644
--- a/docs/pre-defined-msgs.md
+++ b/docs/pre-defined-msgs.md
@@ -1,9 +1,10 @@
 ---
 title: Pre-defined UIBUILDER messages
-description: >
-   Documents the different types of UIBUILDER messages between a Node-RED `uibuilder` node and a UIBUILDER front-end.
+description: |
+  Documents the different types of UIBUILDER messages between a Node-RED `uibuilder` node and a UIBUILDER front-end.
 created: 2020-09-24 18:14:00
 lastUpdated: 2023-09-30 13:06:44
+updated: 2023-12-30 17:01:41
 ---
 
 - [Message types](#message-types)
diff --git a/docs/processes/README.md b/docs/processes/README.md
index 6b2eb240..e7e4e075 100644
--- a/docs/processes/README.md
+++ b/docs/processes/README.md
@@ -1,9 +1,10 @@
 ---
 title: uibuilder Technical Process catalogue
-description: >
+description: |
   Documents some of the process flows for specific actions in uibuilder. For uibuilder developers.
 created: 2022-06-26
 lastUpdated: 2023-08-23 10:13:10
+updated: 2023-12-30 17:01:41
 ---
 
 - [Add a new library package](processes/add-library)
diff --git a/docs/processes/add-library.md b/docs/processes/add-library.md
index 7b2bc552..21a14800 100644
--- a/docs/processes/add-library.md
+++ b/docs/processes/add-library.md
@@ -1,9 +1,10 @@
 ---
 title: Add new library process
-description: >
+description: |
   The process to add a new library package.
 created: 2022-06-26
 lastUpdated: 2022-06-27 10:28:19
+updated: 2023-12-30 17:01:41
 ---
 
 ## Editor (`nodes/uibuilder.html`, `src/editor/uibuilder/editor.js`)
diff --git a/docs/processes/chk-libraries-on-startup.md b/docs/processes/chk-libraries-on-startup.md
index f1a8007c..03e92b24 100644
--- a/docs/processes/chk-libraries-on-startup.md
+++ b/docs/processes/chk-libraries-on-startup.md
@@ -1,9 +1,10 @@
 ---
 title: Check all libraries on node-red startup process
-description: >
+description: |
   The process to check for manually installed libraries and check for updates when node-red starts up
 created: 2022-09-17 16:05:22
 lastUpdated: 2022-09-17 16:05:28
+updated: 2023-12-30 17:01:41
 ---
 
 ## Overview
diff --git a/docs/processes/client-connect.md b/docs/processes/client-connect.md
index 19ddc6d3..d2d7481b 100644
--- a/docs/processes/client-connect.md
+++ b/docs/processes/client-connect.md
@@ -1,9 +1,10 @@
 ---
 title: Client connection process
-description: >
+description: |
   The process when a new client (browser tab) connects to a uibuilder endpoint.
 created: 2022-06-28
 lastUpdated: 2022-06-28 18:08:03
+updated: 2023-12-30 17:01:41
 ---
 
 ## Process
diff --git a/docs/processes/package-management-process.md b/docs/processes/package-management-process.md
index a4234bb1..a5f4ca00 100644
--- a/docs/processes/package-management-process.md
+++ b/docs/processes/package-management-process.md
@@ -1,3 +1,7 @@
+---
+created: 2023-10-21 15:30:26
+updated: 2023-12-30 17:01:41
+---
 
 ## Base data, folders, and files
 
diff --git a/docs/processes/url-change-rename.md b/docs/processes/url-change-rename.md
index 27035e29..27c3f6b1 100644
--- a/docs/processes/url-change-rename.md
+++ b/docs/processes/url-change-rename.md
@@ -1,9 +1,10 @@
 ---
 title: uibuilder url change - rename
-description: >
+description: |
   The process to change the url of a previously deployed instance of uibuilder. Also needing to rename the underlying folder.
 created: 2022-06-26
 lastUpdated: 2022-06-27 10:28:19
+updated: 2023-12-30 17:01:41
 ---
 
 ## Editor (`nodes/uibuilder.html`, `src/editor/uibuilder/editor.js`)
diff --git a/docs/roadmap/Future.md b/docs/roadmap/Future.md
new file mode 100644
index 00000000..66e894ce
--- /dev/null
+++ b/docs/roadmap/Future.md
@@ -0,0 +1,22 @@
+---
+title: UIBUILDER Futures
+created: 2023-12-30 20:11:21
+updated: 2023-12-30 20:15:44
+author: Julian Knight (Totally Information)
+---
+
+## Future aims and overall direction
+
+UIBUILDER will continue to be independent of front-end frameworks though it will also continue to be as compatible as possible so that any desired framework can be used with it.
+
+* It will continue to gain more zero-code pre-built elements.
+* It will gain improved control over the instance root folder structure and the ability to execute `npm run` scripts defined in the `package.json`.
+* More videos!
+
+### Longer term focus
+
+There remains a desire to build a page-builder feature so that people with no coding skills can build great data-driven web apps.
+
+* The documentation quality will continue to improve.
+* The number of 3rd-party module dependencies will be reduced. Starting with the eventual removal of `fs-extra` in favour of the native promisified fs library. Followed most likely by `arun`.
+* Once Node.js v18 or 20 is the base, the code is likely to be refactored into multiple sub-packages in a mono-repo.
diff --git a/docs/roadmap/Maybe.md b/docs/roadmap/Maybe.md
new file mode 100644
index 00000000..a2302a06
--- /dev/null
+++ b/docs/roadmap/Maybe.md
@@ -0,0 +1,63 @@
+---
+created: 2023-12-30 20:23:50
+updated: 2023-12-30 20:32:27
+---
+
+These are some thoughts about possible future direction. They need further thought and design.
+
+## Front-End library
+
+* Add msg # to outgoing messages to act as a sequence number
+* Option to allow log msgs to be returned to Node-RED as uibuilder control messages
+* Option to allow custom events to be returned to Node-RED as uibuilder control messages
+* Do we need a confirmation (ctrl?) msg back to node-red?
+
+## General
+
+* Add `uibuilder` prop to `<uibInstanceRoot>/package.json`
+
+  * `uibuilder.loader` - an array of folder paths - relative to `<uibInstanceRoot>` that would be served using uibuilder's ExpressJS web server. Allowing instance-specific front-end resources. To be used by things like components.
+  * `uibuilder.scripts.deploy` - pointing to node.js file to run when the template is deployed.
+* Find a way to support wildcard URL patterns which would automatically add structured data and make it available to uibuilder flows. Possibly by adding the param data to all output msg's.
+* Trial use of [web-workers](https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Using_web_workers) since majority support goes back to 2014.
+
+  * Create a [Progressive Web App](https://web.dev/what-are-pwas/) (PWA) capable version with [Service Worker](https://developers.google.com/web/fundamentals/primers/service-workers) [Mozilla](https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API/Using_Service_Workers).
+
+  Enabling semi-offline use so speeding up the whole interface after the first load.
+  Also makes more native app-like features available such as mobile content sharing & badges, background downloading, etc.
+
+  Note that service workers don't have access to the DOM but they do act as a network proxy. Global state is not maintained but
+  IndexedDB is available for persistence. They don't work on older browsers. See the [Mozilla Service Worker Cookbook](https://serviceworke.rs/)
+
+  Websockets can't be used in a service worker but [Web Push](https://developers.google.com/web/fundamentals/push-notifications)
+  is available for notifications & might be an interesting additional node for uibuilder.
+  See the [push demo from Mozilla](https://serviceworke.rs/push-payload_demo.html). Push payloads can include JSON and binary.
+
+  [Workbox](https://developers.google.com/web/tools/workbox) - library for adding offline support.
+
+  [fxos-components/serviceworkerware](https://github.com/fxos-components/serviceworkerware#serviceworkerware): An Express-like layer on top of Service Workers to provide a way to easily plug functionality.
+* Add support for HTTP/2 with auto-push. See [http2-express-autopush - npm](https://www.npmjs.com/package/http2-express-autopush)
+* Add support for HTTP/3 and QUIC (available in Node.js v14, in preview with NGINX as at June 2022, websockets over http/3 is defined in RFC9220 in draft at June 2022). https://www.f5.com/company/blog/quic-will-eat-the-internet
+* Allow transfer of files via Socket.IO. https://stackoverflow.com/a/59224495/1309986
+* Allow switch of log.trace to log.info for advanced debugging (would need new switch in Editor or setting in settings.js:uibuilder)
+* New node: allowing a socket.io "room" to be defined. Will need to pick a current main instance from a dropdown (using API)
+
+  * Change FE to allow for rooms.
+* uibuilder "Knowledge Garden"
+
+  * Requirements
+
+    - Get a partial or full list of folders and/or files
+    - Display data in resizable panels
+    - Tree view for folders/files
+    - Markdown render and WYSIWYG/WYSIWFM editing - [mdxeditor](https://mdxeditor.dev/editor/demo), or vditor
+  * References
+
+    - [kajero/src at master · JoelOtter/kajero (github.com)](https://github.com/JoelOtter/kajero/tree/master/src) - interactive notebook
+    - [vditor/README_en_US.md at master · Vanessa219/vditor (github.com)](https://github.com/Vanessa219/vditor/blob/master/README_en_US.md), [Demo example - Vditor (b3log.org)](https://b3log.org/vditor/demo/index.html)
+    - [How to make a resizable panel control with Web Components - DEV Community 👩‍💻👨‍💻](https://dev.to/ndesmic/how-to-make-a-resizable-panel-control-with-web-components-2cpa)
+    - [Draggable &amp; Resizable Panel Component For Vue 3 - Vue Script](https://www.vuescript.com/draggable-resizable-panel/)
+
+## Testing
+
+* Look at the possibility of using https://www.cypress.io/ to automate some front-end and Editor testing.
diff --git a/docs/roadmap/Old.md b/docs/roadmap/Old.md
new file mode 100644
index 00000000..ddcfa82f
--- /dev/null
+++ b/docs/roadmap/Old.md
@@ -0,0 +1,19 @@
+---
+created: 2022-01-01T20:16:44
+updated: 2023-12-30 20:27:53
+author: Julian Knight (Totally Information)
+title: Roadmap Archive
+---
+
+**Update 2022-01-19**: These are the old entries from the WIKI To Do page. They need tidying up and consolidating into the newer structure.
+**Update 2022-06-18**: Now mostly tidied and consolidated. Just a few left that I want to keep for reference.
+
+## Ideas
+
+* Node(s) for specific web components. Possibly allowing the component to be pushed over ws. [Ref.1](https://markus.oberlehner.net/blog/distributed-vue-applications-pushing-content-and-component-updates-to-the-client/) - _[Keep for reference]_
+* Extend middleware hook feature to allow for different middleware for each node instance
+  instead of one for all instances.
+* Add safety validation checks to `msg` before allowing it to be sent/received to/from front-end
+
+  Started: script/style is removed if disallowed in settings, uibuilder control msgs dropped (since v1.0.0)
+* _We might need to add some checks for updated master templates? Maybe issue a warning? Not sure._
diff --git a/docs/roadmap/Rejected.md b/docs/roadmap/Rejected.md
new file mode 100644
index 00000000..4a33c970
--- /dev/null
+++ b/docs/roadmap/Rejected.md
@@ -0,0 +1,9 @@
+---
+created: 2023-12-30 20:20:58
+updated: 2023-12-30 20:21:41
+title: Rejected ideas
+description: These are kept for reference so I don't repeat them.
+author: Julian Knight (Totally Information)
+---
+
+* NEW NODE - `uib-get` - Gets data from a page's DOM. Will use the `uiGet` function. **No longer needed, use `msg._uib` commands in std msg.**
diff --git a/docs/roadmap.md b/docs/roadmap/readme.md
similarity index 73%
rename from docs/roadmap.md
rename to docs/roadmap/readme.md
index 8278baaf..63d14af4 100644
--- a/docs/roadmap.md
+++ b/docs/roadmap/readme.md
@@ -1,38 +1,21 @@
 ---
 title: uibuilder Roadmap
-description: >
+description: |
   This page outlines the future direction of uibuilder. Including specific things that will almost certainly happen as well as more speculative ideas.
 created: 2022-02-01 11:15:27
-lastUpdated: 2023-11-25 15:13:55
+updated: 2023-12-30 20:27:21
 ---
 
-Is there something in this list you would like to see prioritised? Is there something you could help with? Please get in touch via the [Node-RED forum](https://discourse.nodered.org/). Alternatively, you can start a [discussion on GitHub](https://github.com/TotallyInformation/node-red-contrib-uibuilder/discussions) or [raise a GitHub issue](https://github.com/TotallyInformation/node-red-contrib-uibuilder/issues).
+Is there something in this list you would like to see prioritised? Is there something you could help with? Please get in touch via the [Node-RED forum](https://discourse.nodered.org/). Alternatively, you can start a [discussion on GitHub](https://github.com/TotallyInformation/node-red-contrib-uibuilder/discussions) or [raise a GitHub issue](https://github.com/TotallyInformation/node-red-contrib-uibuilder/issues). Please note that I no longer have the time to monitor the #uibuilder channel in the Node-RED slack.
 
-Please note that I no longer have the time to monitor the #uibuilder channel in the Node-RED slack.
+For more information about the future of UIBUILDER, please see the [Futures page](roadmap/Future.md)
 
-## UIBUILDER future aims and overall direction
-
-UIBUILDER will continue to be independent of front-end frameworks though it will also continue to be as compatible as possible so that any desired framework can be used with it.
-
-* It will continue to gain more zero-code pre-built elements.
-* It will gain improved control over the instance root folder structure and the ability to execute `npm run` scripts defined in the `package.json`.
-* More videos!
-
-### Longer term focus
-
-There remains a desire to build a page-builder feature so that people with no coding skills can build great data-driven web apps.
-
-* The documentation quality will continue to improve.
-* The number of 3rd-party module dependencies will be reduced. Starting with the eventual removal of `fs-extra` in favour of the native promisified fs library. Followed most likely by `arun`.
-* Once Node.js v18 or 20 is the base, the code is likely to be refactored into multiple sub-packages in a mono-repo.
-
----
 
 ## In Progress
 
 To see what is currently being developed, please look at the "Unreleased" section of the [Changelog](changelog)
 
-----
+---
 
 ## Next - these are things that need to be done
 
@@ -41,72 +24,54 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 * Complete the move of the zero- to low-code translations into the `libs/lowcode.js` library. Move runtime `buildUi` to common library.
 
   Consider putting each element in its own source js file and using a build process. This will allow their use when converting to web components. Add a master js with all components but allow each to be individually loaded.
-
 * Complete the move of all server filing system handling into the `libs/fs.js` library. And remove dependency on `fs-extra`.
-
-* Node Refactoring:
-
-  | Node        | Mv src editor.js<br>to resources   | jQ Tooltips | jQ Tt class not id | getSource | Notes                               |
-  | ----------- | :--------------------------------: | :---------: | :----------------: | :-------: | :---------------------------------: |
-  | uibuilder   |                                    |      ✔️     |    ✔️             |           |                                     |
-  | uib-cache   |                                    |             |                    |           |                                     |
-  | uib-element |                                    |             |                    |     ✔️    |                                     |
-  | uib-html    |                                    |             |                    |           |                                     |
-  | uib-save    |                 ✔️                 |      ✔️    |                    |           |                                     |
-  | uib-sender  |                                    |             |                    |           |                                     |
-  | uib-tag     |                                    |      ✔️    |                    |     ✔️    |                                     |
-  | uib-update  |                                    |             |                    |           |                                     |
-  | *uib-uplot* |                                    |             |                    |           | check this for other needed updates |
+* Node Edit Panel Refactoring:
+
+  | Refactor / Node:              | uibuilder | uib-cache | uib-element | uib-html | uib-save | uib-sender | uib-tag | uib-update | *uib-uplot*                       |
+  | ----------------------------- | --------- | --------- | ----------- | -------- | -------- | ---------- | ------- | ---------- | ----------------------------------- |
+  | Ref ti-common.js/css          | ✔️      | ✔️      |             |          | ✔️     |            | ✔️    | ✔️       |                                     |
+  | Mv src editor.js to resources | ✔️      | ✔️      |             |          | ✔️     |            | ✔️    | ✔️       |                                     |
+  | jQ Tooltips                   | ✔️      | ✔️      |             |          | ✔️     |            | ✔️    | ✔️       |                                     |
+  | rename template.html          |           | ✔️      |             |          | ✔️     | ✔️       |         | ✔️       |                                     |
+  | jQ Tt class not id            | ✔️      |           |             |          |          |            |         |            |                                     |
+  | getSource                     |           |           | ✔️        |          |          |            | ✔️    |            |                                     |
+  | Notes                         |           |           |             |          |          |            |         |            | check this for other needed updates |
 
   Vars moved to ti-common (replace): node.urlPrefix, node.nodeRoot, paletteCategory, typedInputWidth, localHost, packages, editorInstances[urlsByNodeId]
-
-
 * [Issue #94](https://github.com/TotallyInformation/node-red-contrib-uibuilder/issues/94) - Detect when Node-RED switches projects and see if the uibRoot folder can be dynamically changed.
-
 * Allow control of browser html cache from Node-RED. Add an auto-restore on load option. (? Add send updates back to Node-RED option - control msg ?)
-
-
 * Editor: Add panel of links to all instances of uibuilder.
-
-
 * **Example stand-alone node package as exemplar**
+
   * https://github.com/TotallyInformation/nr-uibuilder-uplot
   * probably chart
   * How to pass data through?
-
 * New node: `uib-template` -  New node to take a msg._ui template input and update parts of it belore sending (e.g. parent, id, ...). `uib-override` or `uib-config`? [Ref](https://discourse.nodered.org/t/an-idea-for-third-party-ui-in-ui-builder/83196/4?u=totallyinformation).
-
 * New node: `uib-event` - Outputs uibuilder standard messages (or maybe both std and control) but is separate from the uibuilder instance node and can be filtered by user, client, page as well as the instance.
 
-
-
 ### Updates to `uibuilder` node
 
 * **FIX NEEDED** Loading template - if it fails due to a missing dependency, the template isn't loaded but the Template shows the new one. Need to revert the name if loading fails.
-
 * Allow file uploads
 * Add instance title and description fields. Extend record of instances to include these and update the `apps` page.
 * Use alt logging for websocket disconnects, sleep, error, etc
-
 * [**STARTED**] Move all filing system handling to a separate library module `libs/fs.js`. Should help work out how to support implementations with limited filing systems.
 * Move all uibRoot package.json handling to `libs/package-mgt.js`
-
 * Runtime API's - a new set of runtime API's
+
   * List all URL's
   * List all *.html files for instance serve folder
   * List all *.html for all URL's
   * _started_ Add api to query if a specific uib library is installed and return version. Optionally return estimated base path. Allow calling from front-end.
-
 * Add API test harness using VScode restbook.
-
 * Add option to process a crafted msg from the FE that returns a JSON list of all files/folders (optionally recursive) - needs change to FE library & editor.
+
   * In Editor, set the top-level permitted folder - relative to the `Serve` folder (e.g. If serving `<instanceRoot>/src`, that would be the default root but allow a sub-folder to be set, e.g. `content` so that only `<instanceRoot>/src/content` and below could be queried). This is to facilitate the creation of content management systems.
   * Possibly also needs option as to whether data can be written back. Including options to create/delete as well as amend. To begin with, just output any changed data to port 1 and let people create their own write-back logic.
-
 * Gracefully handle when rename cannot (re)move original folder (e.g. held open by browser).
+
   * Improve checks for rename failures. `[uibuilder:nodeInstance] RENAME OF INSTANCE FOLDER FAILED. Fatal.` - these should clear after restart but sometimes don't.
 * Files: Changing filetype in editor does not change the highlighting. May need the editor to be re-engineered.
-
 * Ensure that uibRoot is set to a project folder if projects in use. See [PR#47](https://github.com/TotallyInformation/node-red-contrib-uibuilder/pull/47) and [Issue #44](https://github.com/TotallyInformation/node-red-contrib-uibuilder/issues/44)
 * Improve handling for when Node-RED changes projects.
 * Allow instance npm installs to be served (would allow both vue 2 and vue 3 for example). Instance serves to take preference. Would need extension to editor libraries tab to differentiate the locations.
@@ -118,22 +83,19 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 * Add index web page for the `common` folder.
 * Auto-generate web manifest.
 * Add actions: open page? open docs? using RED.actions editor API. [ref](https://nodered.org/docs/api/ui/actions/)
-
 * Remove scripts/css flags from uibuilder panel, no longer in use (not while old client library still in use)
 * Better icons! See https://discourse.nodered.org/t/wish-for-new-nodes/73858/20
 * Consider adding an action for when a `uibuilder` node is selected - would open the web page. https://discourse.nodered.org/t/call-link-from-node-red-editor-ctrl-shift-d/73388/4
-
 * Add GIT processing? Or maybe just handle via npm scripts?
-   * Is git command available?
-   * is front-end src folder a git repository?
-   * git commit
-   * git push
-
 
+  * Is git command available?
+  * is front-end src folder a git repository?
+  * git commit
+  * git push
 * Investigate use of WebWorkers to have a shared websocket that allows retained connection on page reload and between pages in the same `uibuilder` node.
+
   * https://crossbario.com/blog/Websocket-Persistent-Connections/
   * https://stackoverflow.com/questions/10886910/how-to-maintain-a-websockets-connection-between-pages
-
 * **[STARTED]** Provide option to switch from static to rendering to allow dynamic content using ExpressJS Views.
 
   Currently available by adding the appropriate ExpressJS option in settings.js.
@@ -145,55 +107,54 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 * Method to show output from npm package handling.
 * Add optional plugin displaying drop-down in Editors header bar - listing links to all deployed uib URLs. See example: https://github.com/kazuhitoyokoi/node-red-contrib-plugin-header
 * If instance folder doesn't exist - need to mark node as changed to force deploy.
-
 * Admin API enhancements
-  * List of All uib endpoints as a menu page. 
 
+  * List of All uib endpoints as a menu page.
 * Add case sensitivity flag
 * Rationalise the file editor. [Ref](https://discourse.nodered.org/t/code-editor-isnt-saving-text/80836)
 
 #### Templates
 
 * Add eslint dev dependencies to package.json
-  * .eslintrc.js: 	Configuration for rule "sonarjs/no-duplicate-string" is invalid: 	Value 6 should be object. 
 
+    * .eslintrc.js: 	Configuration for rule "sonarjs/no-duplicate-string" is invalid: 	Value 6 should be object.
+  
 * Add template description to display.
 * Add dependency version handling to templates (e.g. vue 2/3)
 * Allow templates to provide example flows via a `uibuilder` Node-RED library plugin - will library update though?
-      
-  Check for examples folder, if present load all *.json files to library.
-  [saveLibraryEntry](https://nodered.org/docs/api/storage/methods/#storagesavelibraryentrytypenamemetabody)
-  
-  ([ref1](https://discourse.nodered.org/t/red-library-without-red-editor/61247), [ref2](https://nodered.org/docs/api/library/), [ref3](https://github.com/node-red/node-red-library-file-store/blob/main/index.js))
-
+     
+    Check for examples folder, if present load all *.json files to library.
+    [saveLibraryEntry](https://nodered.org/docs/api/storage/methods/#storagesavelibraryentrytypenamemetabody)
+    ([ref1](https://discourse.nodered.org/t/red-library-without-red-editor/61247), [ref2](https://nodered.org/docs/api/library/), [ref3](https://github.com/node-red/node-red-library-file-store/blob/main/index.js))
+    
 * Add group/category to `template_dependencies.js`. Add grouping to drop-down in editor. Allow for no group specified (for backwards compatibility).
 * Add option for external templates in `template_dependencies.js`.
 * Consider allowing a local version of `template_dependencies.js`.
 * Add descriptions when chosen.
 * Maybe add as external templates.
+  
   * Vue v3 (build)
   * Vue v3 + Quasar
   * REACT (no-build)
   * REACT (build)
   * jQuery + jQuery UI (maybe + some add-ons?)
-* ~~Add `class="dark"` to all template html file `html` tags. Remove `class="uib"` from body tag.~~ Maybe not such a good idea
 
+* ~~Add `class="dark"` to all template html file `html` tags. Remove `class="uib"` from body tag.~~ Maybe not such a good idea
 * Add ability to load an example flow from a template (add list to package.json and create a drop-down in the editor?) - using the pluggable libraries feature of Node-RED v2.1+?
 * Add option to auto-load npm dependencies on change of Template. [Issue #165](https://github.com/TotallyInformation/node-red-contrib-uibuilder/issues/165)
 * Maybe move dependencies and other template meta-data into the template package.json file.
-  
+
   Would require making sure that package.json always exists (e.g. after template change). May need to be able to reload package.json file as well.
-  Couldn't use the dependencies prop because we dont want to install libraries in the instance root but rather the uibRoot. 
+  Couldn't use the dependencies prop because we dont want to install libraries in the instance root but rather the uibRoot.
   Will need matching code in the Editor panel & a suitable API.
 
-
 #### Libraries tab
 
-  * Add Homepage link to each package in the Libraries tab.
-  * Add update indicator to Libraries tab.
-  * Trigger indicator to Libraries to show if new major version available when switching to the tab.
-  * Add npm package delete confirmation - probably via std NR notifications.
-  * When adding a package, make sure that the input field gets focus & add <keyb>Enter</keyb> & <keyb>Esc</keyb> key processing.
+* Add Homepage link to each package in the Libraries tab.
+* Add update indicator to Libraries tab.
+* Trigger indicator to Libraries to show if new major version available when switching to the tab.
+* Add npm package delete confirmation - probably via std NR notifications.
+* When adding a package, make sure that the input field gets focus & add `<keyb>`Enter`</keyb>` & `<keyb>`Esc`</keyb>` key processing.
 
 #### Files tab
 
@@ -202,12 +163,13 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 * settings.js option to allow _ files to show in editor. https://github.com/TotallyInformation/node-red-contrib-uibuilder/issues/190.
 * Move folder management to a popup dialog (to save vertical space)
 * Extend folder/file management
+
   * Allow renaming of files/folders.
   * Add the `common` folder to the file editor.
   * Allow editing in the `common` folder not just the instance folder.
   * Add a file upload button.
   * Method to import/export front-end files. Needs ZIP/Unzip functions at the back-end.
-  * Add a reminder to the Editor help about examples. Add an onclick to that <a> icon that calls RED.actions.invoke('core:show-import-dialog'); as a quick action to get the user to the import dialog. See [here](https://discourse.nodered.org/t/documentation-example-flows-for-contributed-nodes/44198/2?u=totallyinformation) for more info.
+  * Add a reminder to the Editor help about examples. Add an onclick to that `<a>` icon that calls RED.actions.invoke('core:show-import-dialog'); as a quick action to get the user to the import dialog. See [here](https://discourse.nodered.org/t/documentation-example-flows-for-contributed-nodes/44198/2?u=totallyinformation) for more info.
   * Add option to keep backups for edited files + button to reset to backup + hide backup files
 
 #### Advanced tab
@@ -215,7 +177,7 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 * Update the `Advanced > Serve` dropdown list after creating a new top-level folder (to save having to exit and re-enter the panel).
 * Add visual error when changing advanced/Serve to a folder with no index.html.
 * Add (advanced) flag to make use of project folder optional.
-* Improve help box for _uib switch 
+* Improve help box for _uib switch
 * Option for project folder storage.
 * Show Socket.io server & client versions
 
@@ -227,22 +189,21 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 
 * Add all local package.json script entries as links/buttons so they can be run from the editor panel.
 * If `dev` script discovered in local package.json scripts, enable a dev button so that a CI dev service can be spun up (e.g. Svelte). Will need debug output to be visible in Editor?
-
 * `package-mgt.js`
+
   * Rationalise the various functions - several of them have similar tasks.
   * Remove dependency on `execa`.
   * Output npm log to NR log debug level (or maybe trace?)
   * When checking for URL to use - scan for a `dist` folder.
-
 * `socket.js`
+
   * Add rooms: page, User id, Tab id - will allow broadcasts to a specific page, user or individual tab and will not be purely reliant on the `_socketId` which can change.
   * When a new client connection is made, use `socket.emit('join', tabId)`
   * Output to a room using `io.to(tabId).emit(...)`
   * https://socket.io/docs/v4/rooms/
-
 * Rejected
-  * ~~Add 4th cookie to record the Node-RED web URL since uibuilder can now use a different server, it is helpful if the front-end knows the location of Node-RED itself.~~ Can't even give the port since the client access might be totally different to the server (e.g. behind a proxy).
 
+  * ~~Add 4th cookie to record the Node-RED web URL since uibuilder can now use a different server, it is helpful if the front-end knows the location of Node-RED itself.~~ Can't even give the port since the client access might be totally different to the server (e.g. behind a proxy).
 
 ### Extensions to `uib-cache` node
 
@@ -260,8 +221,10 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 
 * Add width setting
 * Add new element: Layout
+
   * Start with grid layout
 * Forms:
+
   * Check if textarea sizes can be changed - specifically the number of lines. Similarly for select-multiple.
   * Add option for blank line.
   * Add option for an info line (supporting HTML? Markdown?)
@@ -285,36 +248,51 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 * Think about having a `linkInputs([idList])` fn that allows easy linking of different inputs?
 * Consider adding the ability to have some tag other than `div` as the wrapper. [ref](https://github.com/TotallyInformation/node-red-contrib-uibuilder/discussions/210)
 * Add more elements:
+
   * Buttons
+
     * All buttons should allow image (icon), main text and sub-text ([ref](https://github.com/TotallyInformation/uibuilder-vuejs-component-extras))
+
     * [ ] Toggle/3-way
-    * [ ] 
+    * [ ]
   * Individual Form Elements
+
     This is to enable additional form elements to be added to an existing form.
+
     * [ ] Select - https://www.w3.org/WAI/ARIA/apg/example-index/combobox/combobox-autocomplete-both.html
     * [ ] Combo
     * [ ] Input
     * [ ] button (NB: add type="button" to avoid form submit issues, click=uibuilder.eventSend by default)
+
       * Types:
+
         * Basic: click only, text
         * Toggle: click on/off
         * Advanced: opens up overlay with an input field with selectable type (colour, value, slider, switch).
       * Parts: Icon, title (next to icon), (sub)text (below icon/title) - any of which can be optional.
     * [ ] iFrame
-      As for [ui-iframe](https://flows.nodered.org/node/node-red-node-ui-iframe)
+
+       As for [ui-iframe](https://flows.nodered.org/node/node-red-node-ui-iframe)
+
   * [ ] Charts
   * [ ] Gauges
-  * [x] List (ul, ol, dl)
+  * [X] List (ul, ol, dl)
+
     * Future improvements:
+
       * Better validation of input data
       * list-style-type (add to outer) - several options plus text (incl emoji's)
       * Collapsable list style. [ref](https://github.com/mdn/web-components-examples/blob/main/expanding-list-web-component)
       * ? Optional list leading/trailing text ?
-  * [x] Card/Article
+  * [X] Card/Article
+
     * Future improvements:
+
       * Better layout, more optional internal structure (footer, etc)
-  * [x] Table
+  * [X] Table
+
     * Future improvements:
+
       * Additional field definitions in input data
       * Better validation of input data
       * Caption
@@ -327,55 +305,43 @@ To see what is currently being developed, please look at the "Unreleased" sectio
   * [ ] Status Box, Status Panel - [ref](https://discourse.nodered.org/t/web-endpoint-status-dashboard-uibuilder-zero-code-example/75740)
     A segmented vertical/horizontal status/progress panel. For things like battery displays, etc.
     Each status box has a coloured sidepanel to show the status.
-
   * [ ] Toggle button, Toggle button panel (AKA Switch)
     Similar to the status box/panel but for buttons. https://www.w3.org/WAI/ARIA/apg/patterns/switch/
-
   * [ ] Tab container and tabs
     Include events that trigger and send msgs back to Node-RED on tab change.
     What is the best way to hide/unload the non-current tabs?
-
   * [ ] Layout: Grid/Flex-Grid
-     Standardised layout. With option to turn on visible grid to help with layout.
-
+    Standardised layout. With option to turn on visible grid to help with layout.
   * [ ] tbody
     Additional table body sections. [ref](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/tbody#multiple_bodies)
-
   * [ ] notify (globalNotification)
-
   * [ ] Modal Dialogue
     `window.prompt`, `window.confirm`, `<dialog>`
-
   * [ ] LED (on/off/colour/brightness), LED panel
     As for [ui-led](https://flows.nodered.org/node/node-red-contrib-ui-led)
-
   * [ ] Status timeline
     Maybe uPlot with timeline plugin? [ref](https://github.com/hotNipi/node-red-contrib-ui-state-trail/blob/master/ui-state-trail.js)
-
-  * [ ] Image. 
-     Allowing for buffer->data-uri->img-tag, data-uri->img-tag, URL->img-tag. [ref](https://flows.nodered.org/node/node-red-contrib-image-tools)
-
+  * [ ] Image.
+    Allowing for buffer->data-uri->img-tag, data-uri->img-tag, URL->img-tag. [ref](https://flows.nodered.org/node/node-red-contrib-image-tools)
   * [ ] Container
     Standard layout. With option for drag/drop of contents. [ref](https://discourse.nodered.org/t/is-there-a-pallete-that-can-do-this/75143?u=totallyinformation)
-
   * [ ] Style/Theme changer.
     Extended version of the one in my experimental W3C Components repo. Will let you change between light/dark mode, change base colours, etc. [Example component](https://github.com/TotallyInformation/web-components/blob/main/components/uib-theme-changer.js)
-
   * [ ] Accordian.
     [ref](https://css-tricks.com/quick-reminder-that-details-summary-is-the-easiest-way-ever-to-make-an-accordion/)
-
   * [ ] Map - Leaflet
-  
-  * Completed 
-    * [x] Markdown
-      Allow raw Markdown to be sent similar to the HTML element. Will require the Markdown-IT library to be loaded as per other uibuilder Markdown support.
-    * [x] Simple Form - Input types: button, checkbox, color, date, datetime-local, email, hidden, month, number, password, radio, range, tel, text, time, url, week
-    * [x] HTML - allow raw html to be sent - e.g. from template node
-    * [x] Page Title
-    * [x] tr - Add a row to an existing table
-    * [x] li - Add a row to an existing ul/ol list
 
+  * Completed
+
+    * [X] Markdown
+      Allow raw Markdown to be sent similar to the HTML element. Will require the Markdown-IT library to be loaded as per other uibuilder Markdown support.
+    * [X] Simple Form - Input types: button, checkbox, color, date, datetime-local, email, hidden, month, number, password, radio, range, tel, text, time, url, week
+    * [X] HTML - allow raw html to be sent - e.g. from template node
+    * [X] Page Title
+    * [X] tr - Add a row to an existing table
+    * [X] li - Add a row to an existing ul/ol list
 * Other thoughts:
+
   * Pill list, scrollable search - https://www.w3.org/WAI/ARIA/apg/patterns/grid/examples/layout-grids/
 * ??? How to allow EXTERNAL element definitions ??? e.g. Someone else's contributed package.
 
@@ -412,88 +378,82 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 * Add `isNew` flag that indicates if a node instance has not yet been deployed. (e.g. new paste or import or drag from palatte)
 
 ### client Library
-* [**STARTED**] Ability to visually show all uibuilder managed variables. 
 
+* [**STARTED**] Ability to visually show all uibuilder managed variables.
 * Add client `tag()` function that creates a new HTML element similar to the Node-RED side `uib-tag` node. (See https://redom.js.org for refs)
-
 * A way to show and change uib-brand variables visually?
 * Add extra optional flag to set() to allow saving to localStorage - where set, auto-load on (re)load
-
-* Add individual class handling to _ui processing. [ref](https://developer.mozilla.org/en-US/docs/Web/API/Element/classList).    
-
+* Add individual class handling to _ui processing. [ref](https://developer.mozilla.org/en-US/docs/Web/API/Element/classList).
 * Add Node-RED command to find out if a front-end library is installed.
-
 * Add small button to showStatus output to allow user to turn off the display.
 * Make sure that all watch/monitor fns emit custom events
 * msgShow - add a message counter (optional?)
+* Forms (eventSend):
 
-* Forms (eventSend): 
   * Allow for multi-select sending array of selected options.
   * Allow for multi-select pre-selecting array of options.
   * Allow for "selected" `true` on option entries.
-
 * Get _uib/_ui notify features to use Notification API if available
-
 * *New Functions* (all to be callable from Node-RED):
+
   * [ ] `uibuilder.cacheSend()` and `uibuilder.cacheClear()` - send ctrl msgs back to node-red - reinstate in uib-cache fn now we've removed extra ctrl send.
   * [ ] `uibuilder.showLog()` - Add a visible panel on-page to show console.log output. Redirects (or maybe copies) uibuilder.log output - possibly also console.log. Will need amendments to the uibuilder.log function to give options for output to this and/or back to Node-RED.
   * [ ] `uibuilder.socketReconnect()` Add manual socket.io reconnection function so it can be incorporated in disconnected UI notifications.
   * [ ] Expand/collapse all details, expand previous/next (with/without collapsing others) buttons. [ref](https://codereview.stackexchange.com/questions/192138/buttons-that-expand-or-collapse-all-the-details-within-the-document)
   * [ ] **HARD - may be impossible?** `uibuilder.convertToUI(cssSelector)` - convert part/all of the DOM to `_ui` json structure. [ref](https://stackoverflow.com/questions/2303713/how-to-serialize-dom-node-to-json-even-if-there-are-circular-references)
-
 * Control from Node-RED. Functions to implement:
+
   * [ ] watchDom(startStop), uiWatch(cssSelector) [add custom event outputs]
   * [ ] setPing
   * [ ] `loadui()`
   * [ ] `clearHtmlCache()`, `saveHtmlCache()`, `restoreHtmlFromCache()`
   * [ ] getStore, setStore, removeStore - control browser local storage
   * [ ] Expand/collapse all details, expand previous/next (with/without collapsing others)
-  * Add `info` outputs to commands. Allow the fns that commands call to have auto-send & info.
 
+  * Add `info` outputs to commands. Allow the fns that commands call to have auto-send & info.
 * Allow file uploads
 * Add a `jsonImport` option to the _ui `load` method. The `jsonImport` property being an object where the keys are variable names to load to and the values are the URL's to load the JSON from.
-
 * Add treeview formatting to syntaxHighlight. [ref](https://iamkate.com/code/tree-views/).
 * Consider watching for a url change (e.g. from vue router) and send a ctrl msg if not sending a new connection (e.g. from an actual page change). `url` variable already added in preparation.
 * Option for a pop-over notification to manually reconnect the websocket.
 * Investigate use of [PerformanceNavigationTiming.type](https://developer.mozilla.org/en-US/docs/Web/API/PerformanceNavigationTiming/type) to detect page load type and inform uibuilder on initial message.
-
 * _started_ Add ability to save the current DOM.
+
   * _started_ To local storage - with option to reload on reload
   * _started_ (manual request is done) Send to Node-RED as a control msg (whole HTML or from a CSS Selector)
-
 * _UI - improvements to the config-/data-driven UI creation features
+
   * **Started** Add optional page filter to _ui - if `msg._ui.pageName` not matching current page, don't process - *needs list and wildcard capabilities*.
   * Content editor capability - to set editable content blocks. [ref 1](https://editorjs.io/)
-  * Add handling for `_ui.components[n].slots` where slots is an object of named slots with the special 
-     name of `default` for the default slot (default must be handled first since it overwrites all existing slots)
+  * Add handling for `_ui.components[n].slots` where slots is an object of named slots with the special
+    name of `default` for the default slot (default must be handled first since it overwrites all existing slots)
   * Add check to uibuilder.module.js to prevent adding of multiple entries with same ID
   * Allow adding to more locations: next/previous sibling
   * Add click coordinates to return msgs where appropriate. See https://discourse.nodered.org/t/contextmenu-location/22780/51
-
 * Extend logging functions:
+
   * Report socket.io setup/config issues back to Node-RED using `beaconLog(txtToSend, logLevel)`.
   * _started_ Add showLog function similar to showMsg - showing log output to the UI instead of the console.
   * Add option to send log events back to node-red via the `navigator.sendBeacon()` method.
-      * `uibuilder` node will output control msg of type `Client Log` when client sends a beacon.
-      * Make optional via flag in Editor with start msg enabling/disabling in client.
-      * ? window and document events - make optional via uibuilder fe command.
-  
+
+    * `uibuilder` node will output control msg of type `Client Log` when client sends a beacon.
+    * Make optional via flag in Editor with start msg enabling/disabling in client.
+    * ? window and document events - make optional via uibuilder fe command.
 * Add a standard tab handler fn to handle tab changes. Are DOM selectors dynamic (do they update with new DOM elements)? If not, will need to include a DOM observer.
 * Extend clearHtmlCache, restoreHtmlFromCache, saveHtmlCache fns to allow *sessionCache*.
 * Add a [resizeObserver](https://developer.mozilla.org/en-US/docs/Web/API/ResizeObserver) to report resize events back to Node-RED as a control msg.
 * Look at [`window.prompt`](https://developer.mozilla.org/en-US/docs/Web/API/Window/prompt), [`window.confirm`](https://developer.mozilla.org/en-US/docs/Web/API/Window/confirm) and [`<dialog>`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/dialog) - should _ui implement these?
 * Get better control over what control messages can be sent. Centralise the list of control messages in use.
 * Add functions for manipulating SVG's.
-
 * Allow for PWA use:
+
   * Check for OFFLINE use and suppress transport errors
   * Add check for online/offline - make available to user code
   * Auto-generate manifest and sw.js - need icon and to set names/urls/etc
   * https://learn.microsoft.com/en-us/microsoft-edge/progressive-web-apps-chromium/how-to/web-app-manifests
   * Allow push API interface as well as websocket. https://developer.mozilla.org/en-US/docs/Web/API/Push_API
-
 * Accessibility
+
   * Need to add a dismiss button to toasts
   * Check all auto-added elements for accessibility
   * Add count of current errors to title
@@ -514,6 +474,7 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 ### `uib-brand.css`
 
 * Forms:
+
   * Allow for blank line spanning the form width.
   * Allow for information line spanning the form width.
 * Something similar to the sidebar status panel but segmented. Choose number of segments.
@@ -522,7 +483,9 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 * Improve input/form elements. [Ref](https://developer.mozilla.org/en-US/docs/Web/CSS/:required)
 * Add treeview formatting. [ref](https://iamkate.com/code/tree-views/)
 * Consider an "Easy Read" variation:
+
   * Easy read means:
+
     * wide margins
     * images on the left
     * larger text (14 to 16pt)
@@ -535,14 +498,12 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 
 * uibRoot package.json - add check if dependencies blank but `node_modules` is not empty, if so, repopulate? Need to decide when to check - on commit at least.
 
-
 ### Documentation (including videos)
 
 * New doc for using `ui.js` outside of uibuilder.
 * `README.md`: Add more links to the Features section so that each feature points to appropriate documentation. Add a landing-page link to "includes many helper features" to signpost to relavent detailed documentation.
 * Node-specific docs.
 * Reorg docs to make more sense to new starters & make more logical.
-
 * Search for `*(This document is a work-in-progress, it is not complete)*` and update documents.
 * Add message interaction diagram to "pre-defined-msgs.md"
 * Add note to documentation for the library manager that you can install LOCAL folders.
@@ -569,16 +530,14 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 * Snapshots (grab html and save somewhere)
 * uibuilder reactive variables (set, get, onChange), uib-var
 * Dynamically modify CSS class for HTML elements
-
 * Low-code, do anything from Node-RED or browser
 * UI updates using low-code. [ref](https://discourse.nodered.org/t/uibuilder-documentation-suggestions-and-improvements/74812/33?u=totallyinformation)
 * Easy forms
 * Forms - zero-code
-
 * SHORT
+
   * quick-start example
   * Switch light/dark
-
 * Mix of HTML and uibuilder uib-update for simple tasks.
 * Caching - node and custom
 
@@ -587,15 +546,16 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 * Add a "Quick Start" example.
 * Update the uib-element example.
 * Update the remote-commands example.
-
 * Zero-code example needs better wording for UL/OL example. [ref](https://discourse.nodered.org/t/documents-6-1-0/74885/47)
 * Reproduce the examples from the [pdfmaker website](http://pdfmake.org/playground.html) since that uses a similar-style config-driven approach to uibuilder's low-code, config-driven UI feature. See especially the _tables_ example.
 * Add example for Vue sfc loader.
 * Ticklist
+
   * Send a list
   * Attach click handler to switch list type from bullet to ticked & msg node-red
   * Save changes to cache on click
 * Table
+
   * Weather example?
 * Telegram web app. [ref1](https://github.com/revenkroz/telegram-web-app-bot-example)
 * [Perspective](https://perspective.finos.org/) - interactive data dashboard
@@ -612,35 +572,27 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 ### Ideas
 
 * *STARTED* How to add FILTERs (text formaters) to `<uib-var>`? They should be a collection of JS functions that are auto-given the var as a value, add any other args and return a formatted version of the value. Filters should be chainable. Reflect.apply(target, thisArgument, argumentsList)
-
 * PAGE CREATOR: Something that creates a new page file from template. Could be an extension to uib-save?
+
   * Maybe also a way to track pages? A catalogue? Maybe also an API to return all HTML file names as an array?
   * Consider scraping all .html files in each uibuilder instance and building an auto-list that can be added to the `../uibuilder/apps` page. Possibly with a manual override list option.
   * Add functions to not only reference page-names/urls but also to automatically create menus.
   * [Ref](https://discourse.nodered.org/t/why-would-i-want-to-use-uibuilder/81683/7?u=totallyinformation)
-
 * THEME CONFGURATOR: Something that allows manipulation of theme settings from within Node-RED
-
 * Consider using element setHTML() method if DOMsanitise is not available. [Ref](https://developer.mozilla.org/en-US/docs/Web/API/Element/setHTML)
-
 * Consider adding a default CSS override to the `uibuilder` node. To be used when no CSS specificed and also to be used in admin/generated uib pages. Defaulting to `../uibuilder/uib-brand.css`.
-
 * Change fixed text to use `RED._` for l8n. See: https://discourse.nodered.org/t/flexdash-alpha-release-a-dashboard-for-node-red/65861/48. [ref](https://discourse.nodered.org/t/question-on-internationalisation-can-i-have-1-json-file-for-several-nodes/76300/2)
-
 * NEW NODE: `uib-room` - linked to a uibuilder node, creates a socket.io room. Will need a way to tell the connected clients to subscribe to the room (optional) and FE fns to connect/disconnect from rooms.
-
 * UIB index page - new node? Default to root url. Show all instances by default, optional pages? Include descriptions. Selectable list of instances/pages. Allow for multiple instances of the node with different settings. CSS.
-
 * ?For no-code nodes that might have class selectors - add a search button that searches the uib-brand.css?
 * ?Have a toggled UI button that opens the Node-RED Editor to the correct location for the URL?
-
+* Add custom internal store for any uibuilder nodes that want one - so that users don't have to manually configure a file store.
 
 #### Questions that need answers
 
 * How best to allow other nodes to provide zero-code nodes - that allow auto feedback from the front-end? e.g. something like the [node-red-contrib-ui-time-scheduler](https://github.com/fellinga/node-red-contrib-ui-time-scheduler) node.
 * How to provide a better log output? With a simple way to link to Node-RED log output (filtered) as well as a dedicated output node. That output's to a web page with highlighting and possibly page back/fwd through history.
 
-
 ## UIBUILDER v7 planned breaking changes
 
 * Minimum node.js v18
@@ -649,121 +601,118 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 * Remove Pollyfills from uibuilder editor code
 * Consider removing the css auto-load in the next major release since at least 1 person has hit a race condition. [ref](https://discourse.nodered.org/t/uib-brand-css-sometimes-injected/78876).
 * Switch to default of case sensitive URL's for ExpressJS. Socket.IO is already case sensitive but ExpressJS is not. This can cause issues as shown in [Ref](https://discourse.nodered.org/t/uibuilder-and-url-case-sensitivity/81019/6)
-* Add URL case sensitivity flag - currently ExpressJS and Socket.IO handle URL case sensitivity differently. 
+* Add URL case sensitivity flag - currently ExpressJS and Socket.IO handle URL case sensitivity differently.
 
   In rare cases, this can cause an error. Will make both case sensitive in line with W3C recommendations (will be optional until next major release).
 
-  Add case sensitivity flag to uibuilder node and allow setting of ExpressJS flags on routers. [ref 1](https://stackoverflow.com/questions/21216523/nodejs-express-case-sensitive-urls), [Ref 2](http://expressjs.com/en/api.html). Also document in  uibuilder settings. [Ref 3](https://discourse.nodered.org/t/uibuilder-and-url-case-sensitivity/81019/6). 
-
+  Add case sensitivity flag to uibuilder node and allow setting of ExpressJS flags on routers. [ref 1](https://stackoverflow.com/questions/21216523/nodejs-express-case-sensitive-urls), [Ref 2](http://expressjs.com/en/api.html). Also document in  uibuilder settings. [Ref 3](https://discourse.nodered.org/t/uibuilder-and-url-case-sensitivity/81019/6).
 * Restrict `onChange` to only watch watched variables? (checking to make sure it doesn't start with `_` or `#`)
 
 ## Ideas for releases further out
 
 ### Changes needed for future versions of node.js (will be updating uib in line with Node-RED v3)
-  * Node.js v14 features - code updates to leverage the latest features
-    * Replace `||` default value tests with `??` .
-    * Replace checks for if a property exists with `?.` - [Optional Chaining](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Optional_chaining)
-
-    * https://nodejs.org/en/about/releases/, https://github.com/nodejs/node/blob/main/doc/changelogs/CHANGELOG_V14.md, https://node.green/
-    * [Optional Chaining](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Optional_chaining)
-    * [Nullish Coalescing](https://wiki.developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Nullish_Coalescing_Operator)
-    * [Intl.DisplayNames](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DisplayNames)
-    * [calendar & numberingSystem for Intl.DateTimeFormat](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DateTimeFormat)
-    * Private Class methods (v14.5.1+)
-    * WeakReferences (v14.5.1+)
-    * Array flat and flat map
-    * Optional catch binding
-    * Object.fromEntries (helps make an object either from Map or from a key/value array)
-    * **ESM IS STILL EXPERIMENTAL**
-    * Corepack https://nodejs.org/dist/latest-v14.x/docs/api/corepack.html
-    * Diagnostic reports. https://developer.ibm.com/articles/introducing-report-toolkit-for-nodejs-diagnostic-reports/, https://github.com/IBM/report-toolkit
-
-  * Changes due once Node.js v16 live:
-    * Change style of requiring core node modules: `require('node:os')` instead of `require('os')`
-    * JSON Modules (experimental in v14, full in 16.15.0)
-    * Object.hasOwn is a static alias for Object.prototype.hasOwnProperty.call (16.9.0)
-    * [Error cause](https://v8.dev/features/error-cause) (16.9.0)
-    * [Array.prototype.at](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/at) (16.6.0) - allows use of negative indexes.
-    * Stable Timers Promises API, RegExp Match Indices, which provide the start and end indices of the captured string (16.0.0)
-
-    Refs: [release notes](https://nodejs.org/en/blog/release/v16.0.0), [What's New In Node.js 16?](https://www.howtogeek.com/devops/whats-new-in-node-js-16/)
-
-  * Changes due once Node.js v18 live
-    * [Socket.IO with WebTransport](https://socket.io/get-started/webtransport) - requires https
-    * [`findLast` and `findLastIndex` array methods](https://v8.dev/features/finding-in-arrays) (18.0.0)
-    * Top-level await (experimental in v14 - behind flag, full in v18)
-    * V8 updates
-      * The `findLast()` and `findLastIndex()` array methods.
-      * Improvements to the `Intl.Locale` API.
-      * The `Intl.supportedValuesOf` function.
-      * Improved performance of class fields and private class methods (the initialization of them is now as fast as ordinary property stores).
-    * APIs now exposed on the global scope:
-      * Blob - https://nodejs.org/api/buffer.html#class-blob
-      * BroadcastChannel - https://nodejs.org/api/worker_threads.html#class-broadcastchannel-extends-eventtarget
-    * Experimental
-      * Fetch
-      * Web Streams API
-      * Test Runner
-      * Experimental watch run mode (restarts the process)
-
-  * Changes due once Node.js v19 live
-    * Web crypto: `globalThis.crypto` or `require('node:crypto').webcrypto` 
-    * `Intl.NumberFormat` v3 API is a new TC39 ECMA402 stage 3 proposal extending the pre-existing `Intl.NumberFormat`.
-    * npm@8.19.2
-  
-  * Changes due once Node.js v20 live
-    * Consider the experimental permission model
-    * Test Runner module
-    * `String.prototype.isWellFormed` and `toWellFormed`
-    * Methods that change Array and TypedArray by copy
-    * Resizable ArrayBuffer and growable SharedArrayBuffer
-    * RegExp v flag
-    * Synchronous import.meta.resolve()
-
-  * Changes due once Node.js v21 live
-    * Stable Fetch
-    * Stable Webstreams
-    * [Array grouping](https://github.com/tc39/proposal-array-grouping)
-    * `ArrayBuffer.prototype.transfer`
-    * Global `navigator` object.
-    * Experimental
-      * experimental browser-compatible WebSocket implementation
-  
-  * Changes due once Node.js post v20
-    * Diagnostic channels (experimental in v14)
-    * AbortController and AbortSignal (experimental in v14)
-    * Fetch (Experimental 16.15.0, 18.0.0)
-    * Permission model (experimental in v20)
-
 
+* Node.js v14 features - code updates to leverage the latest features
+
+  * Replace `||` default value tests with `??` .
+  * Replace checks for if a property exists with `?.` - [Optional Chaining](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Optional_chaining)
+  * https://nodejs.org/en/about/releases/, https://github.com/nodejs/node/blob/main/doc/changelogs/CHANGELOG_V14.md, https://node.green/
+  * [Optional Chaining](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Optional_chaining)
+  * [Nullish Coalescing](https://wiki.developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Nullish_Coalescing_Operator)
+  * [Intl.DisplayNames](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DisplayNames)
+  * [calendar &amp; numberingSystem for Intl.DateTimeFormat](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DateTimeFormat)
+  * Private Class methods (v14.5.1+)
+  * WeakReferences (v14.5.1+)
+  * Array flat and flat map
+  * Optional catch binding
+  * Object.fromEntries (helps make an object either from Map or from a key/value array)
+  * **ESM IS STILL EXPERIMENTAL**
+  * Corepack https://nodejs.org/dist/latest-v14.x/docs/api/corepack.html
+  * Diagnostic reports. https://developer.ibm.com/articles/introducing-report-toolkit-for-nodejs-diagnostic-reports/, https://github.com/IBM/report-toolkit
+* Changes due once Node.js v16 live:
+
+  * Change style of requiring core node modules: `require('node:os')` instead of `require('os')`
+  * JSON Modules (experimental in v14, full in 16.15.0)
+  * Object.hasOwn is a static alias for Object.prototype.hasOwnProperty.call (16.9.0)
+  * [Error cause](https://v8.dev/features/error-cause) (16.9.0)
+  * [Array.prototype.at](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/at) (16.6.0) - allows use of negative indexes.
+  * Stable Timers Promises API, RegExp Match Indices, which provide the start and end indices of the captured string (16.0.0)
+
+  Refs: [release notes](https://nodejs.org/en/blog/release/v16.0.0), [What&#39;s New In Node.js 16?](https://www.howtogeek.com/devops/whats-new-in-node-js-16/)
+* Changes due once Node.js v18 live
+
+  * [Socket.IO with WebTransport](https://socket.io/get-started/webtransport) - requires https
+  * [`findLast` and `findLastIndex` array methods](https://v8.dev/features/finding-in-arrays) (18.0.0)
+  * Top-level await (experimental in v14 - behind flag, full in v18)
+  * V8 updates
+
+    * The `findLast()` and `findLastIndex()` array methods.
+    * Improvements to the `Intl.Locale` API.
+    * The `Intl.supportedValuesOf` function.
+    * Improved performance of class fields and private class methods (the initialization of them is now as fast as ordinary property stores).
+  * APIs now exposed on the global scope:
+
+    * Blob - https://nodejs.org/api/buffer.html#class-blob
+    * BroadcastChannel - https://nodejs.org/api/worker_threads.html#class-broadcastchannel-extends-eventtarget
+  * Experimental
+
+    * Fetch
+    * Web Streams API
+    * Test Runner
+    * Experimental watch run mode (restarts the process)
+* Changes due once Node.js v19 live
+
+  * Web crypto: `globalThis.crypto` or `require('node:crypto').webcrypto`
+  * `Intl.NumberFormat` v3 API is a new TC39 ECMA402 stage 3 proposal extending the pre-existing `Intl.NumberFormat`.
+  * npm@8.19.2
+* Changes due once Node.js v20 live
+
+  * Consider the experimental permission model
+  * Test Runner module
+  * `String.prototype.isWellFormed` and `toWellFormed`
+  * Methods that change Array and TypedArray by copy
+  * Resizable ArrayBuffer and growable SharedArrayBuffer
+  * RegExp v flag
+  * Synchronous import.meta.resolve()
+* Changes due once Node.js v21 live
+
+  * Stable Fetch
+  * Stable Webstreams
+  * [Array grouping](https://github.com/tc39/proposal-array-grouping)
+  * `ArrayBuffer.prototype.transfer`
+  * Global `navigator` object.
+  * Experimental
+
+    * experimental browser-compatible WebSocket implementation
+* Changes due once Node.js post v20
+
+  * Diagnostic channels (experimental in v14)
+  * AbortController and AbortSignal (experimental in v14)
+  * Fetch (Experimental 16.15.0, 18.0.0)
+  * Permission model (experimental in v20)
 * Move the ui class to a separate *repo* so that it can be used independently.
 * Consider moving all libs to separate repo to reduce number of direct dependencies. (probably requires node v16 for nested mono-repo modules)
 * Restructure to a monorepo? With libs in 1, maybe nodes in their own and the front-end library in another? [ref](https://www.bing.com/search?pglt=161&q=what+is+a+monorepo&cvid=42b295dfc64143cfb64e4061114803fd&aqs=edge.0.0l9.7031j0j1&FORM=ANNTA1&PC=U531)
-
 * Some way to visually expose a library of JavaScript functions with their args as inputs. Maybe make this a cmd that pulls a doc from Node-RED? (keeps client lib small)
 * Using the above to visually show available uibuilder fns with inputs and outputs.
 * Add optional TELEMETRY output (maybe linked to the log functions) - add mqtt endpoint to uibuilder settings.js (or maybe websocket?)
 * Use `degit` to move default templates and maybe examples to their own repos - allowing more dynamic updates without needing a new version of uibuilder.
-
 * Change ui.js to create global $ui object, change lib to match. Make sure it works in node.js as well as browser.
-  
+
   In preparation for the ui library to be used stand-alone and have its own branding. Also allowing option for it to be managed as an independent library.
 
   Add a version and a version fn.
 
   Consider making available to Node-RED functions?
 
-
 ### Thoughts on JavaScript tabular data manipulation and visualisation
 
 * An editable table widget for the browser where data changes are sent back to Node-RED.
-
 * Some DataFrame style tools for manipulating 2d tabular JSON data.
 
   * Using msg._ui low-code - facilitating quick table updates from Node-RED.
   * In Node-RED functions - enabling simpler manipulation of 2d JSON data.
   * In the browser - as above.
-
 * A live JavaScript interpreter in the browser that would let users do Jupyter notebook style interactions with browser data.
 
 [Ref](https://discourse.nodered.org/t/noisecraft-anyone-heard-of-it/79813/19)
@@ -773,7 +722,8 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 * Consider creating a module that uses [gridstck.js](https://gridstackjs.com/#) where each grid entry gets a unique html ID. Needs a way to save the grid as HTML without the amend widgets but also as a gridstack object to allow re-editing.
 * `uib-sender` node not really needed any more - consider putting a "deprecated" node.warn message prior to removing.
 * Remove dependencies on fs-extra library - need to wait for node.js v16.7 to be minimum so that fs.cp/fs.cpSync is available
-  * [x] libs/web.js
+
+  * [X] libs/web.js
   * [ ] libs/package-mgt.js
   * [ ] uiblib.js
 * Optimise runtime code using esbuild (see node-build.mjs). Reduce runtime dependencies by bundling and move deps to dev deps.
@@ -782,44 +732,25 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 * ? Add client identifier chooser to cache node - allowing use of different msg props to identify a specific client
 * Change cache & main nodes to use client id rather than socket id where available. Since that is less likely to change.
 * Improve editor panels with better tooltips. [ref](https://kazzkiq.github.io/balloon.css/)
-
 * Use [chokidar](https://github.com/paulmillr/chokidar) to send a control msg to the fe when files change. Change the front-end to allow the browser to automatically reload (location.reload()). Put everything behind an optional flag and don't load the chokidar library unless the flag is set. May want an auto-rebuild feature as well. Alternatively, try [livereload](https://www.npmjs.com/package/livereload) which is used by rollup.
-
 * Add package.json `style` property to Instance details page and packages list if it exists.
-
 * Add Web Reporting API endpoint(s). Set a header to tell the client where to report to. Reports are JSON and so could be directed out of port 2 as a new control msg type. See https://web.dev/reporting-api/ & https://developer.mozilla.org/en-US/docs/Web/API/Reporting_API.
-
 * Add Notifications API support. See https://developer.mozilla.org/en-US/docs/Web/API/Notifications_API/Using_the_Notifications_API & https://developer.mozilla.org/en-US/docs/Web/API/notification.
-
 * Add option to log http(s) requests to control output port
-
 * Switch to [dynamic imports](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/import#dynamic_imports) for require's with low probability of usage. [ref](https://nodejs.org/dist/latest-v12.x/docs/api/esm.html#esm_import_expressions).
-
-* Migrate from commonjs to [ES modules](https://nodejs.org/dist/latest-v12.x/docs/api/esm.html#esm_commonjs_json_and_native_modules). (2) [JSON can't be imported directly in ESMs](https://nodejs.org/dist/latest-v12.x/docs/api/esm.html#esm_experimental_json_modules), use createRequire.
-
+* Migrate from commonjs to [ES modules](https://nodejs.org/dist/latest-v12.x/docs/api/esm.html#esm_commonjs_json_and_native_modules). (2) [JSON can&#39;t be imported directly in ESMs](https://nodejs.org/dist/latest-v12.x/docs/api/esm.html#esm_experimental_json_modules), use createRequire.
 * Add funding link to package.json (see `man 5 package.json`)
-
 * Maybe switch package.json reads to [npm/read-package-json: The thing npm uses to read package.json files with semantics and defaults and validation and stuff (github.com)](https://github.com/npm/read-package-json)?
-
-
 * Add settings.js options to use different paths/names for middleware files.
-
 * Once Node-RED's baseline node.js version has moved passed v12.20, can update `execa` and use dynamic imports (and change README notes on scorecard). Once it has moved into v14, can simplify the socket.js class by reinstating the optional chaining.
-
 * Add socket.io instrumentation server. See https://socket.io/docs/v4/admin-ui/
-{}
+  {}
 * Move socket.io client to dev deps and remove serve from web.js (new library builds it in) - can't do until uibuilderfe is deprecated? Or updated to include (breaking chg)
-
 * Consider the use of `RED.comms.publish('uibuilder:some-event-name', data, retainFlag)` to push data to the editor (using RED.comms.subscribe in the Editor)
-
 * Consider allowing addition of HTTP request headers to control msgs
-
 * Consider allowing control msg for each request
-
 * Consider implementing at Kroki diagram service node - https://kroki.io/ - enables delivery of diagrams from text descriptions using many different libraries.
-
-* Create a `uib-router` node. This would connect a route handler flow to an existing `uibuilder` node. A bit like an `http-in` node but not needing an `http-out` because the out is via the `uibuilder` node. Would allow wildcard routing and ability to restrict by method. The defined path(s) would be added as a new router to the uibuilder routes. Consider whether this needs to be a `uib-router-in`/`uib-router-out` pair instead? 
-
+* Create a `uib-router` node. This would connect a route handler flow to an existing `uibuilder` node. A bit like an `http-in` node but not needing an `http-out` because the out is via the `uibuilder` node. Would allow wildcard routing and ability to restrict by method. The defined path(s) would be added as a new router to the uibuilder routes. Consider whether this needs to be a `uib-router-in`/`uib-router-out` pair instead?
 * Revisit `elementIsVisible` - requires probably 2 fns at least. A monitor and a one-off check. One-off requires a separate observer function for each.
 
 ### Templates
@@ -827,19 +758,16 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 * Serve instance package.json `dependencies` on `../uibuilder/vendor/` path
 
   * Or maybe on `./vendor/`? That might be more consistent and avoid other issues/changes?
-  
   * Complexity: this would end up with packages installed locally - would the uib central packages be recognised? Maybe use `uibuilder.dependencies` instead?
-
   * Change '../../templates/template_dependencies' in api v3
-
   * Update built-in templates to use package.json
-
 * uibuilder version checker - https://github.com/npm/node-semver
 * watcher
 * Add a new template and example to demonstrate the sender node.
 * Template - Docsify CMS
 * Add examples folder
 * Add uibuilder property to package.json - define
+
   * uibuilder version checker - https://github.com/npm/node-semver
   * required fe packages
   * watch - dict of watches: `{'path':'scriptname'}` or `{['path1',...]:'scriptname'}`
@@ -849,87 +777,16 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 
 * On close, delete cache
 
-
 ## *Maybe*
 
-These are some thoughts about possible future direction. They need further thought and design.
+[Speculative entries](roadmap/readme) - May never happen.
 
-### Front-End library
-
-* Add msg # to outgoing messages to act as a sequence number
-* Option to allow log msgs to be returned to Node-RED as uibuilder control messages
-* Option to allow custom events to be returned to Node-RED as uibuilder control messages
-* Do we need a confirmation (ctrl?) msg back to node-red?
-
-### General
-
-* Add `uibuilder` prop to `<uibInstanceRoot>/package.json`
-  * `uibuilder.loader` - an array of folder paths - relative to `<uibInstanceRoot>` that would be served using uibuilder's ExpressJS web server. Allowing instance-specific front-end resources. To be used by things like components.
-  * `uibuilder.scripts.deploy` - pointing to node.js file to run when the template is deployed.
-* Find a way to support wildcard URL patterns which would automatically add structured data and make it available to uibuilder flows. Possibly by adding the param data to all output msg's.
-
-* Trial use of [web-workers](https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Using_web_workers) since majority support goes back to 2014.
-  * Create a [Progressive Web App](https://web.dev/what-are-pwas/) (PWA) capable version with [Service Worker](https://developers.google.com/web/fundamentals/primers/service-workers) [Mozilla](https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API/Using_Service_Workers).
-  
-  Enabling semi-offline use so speeding up the whole interface after the first load.
-  Also makes more native app-like features available such as mobile content sharing & badges, background downloading, etc.
-
-  Note that service workers don't have access to the DOM but they do act as a network proxy. Global state is not maintained but
-  IndexedDB is available for persistence. They don't work on older browsers. See the [Mozilla Service Worker Cookbook](https://serviceworke.rs/)
-
-  Websockets can't be used in a service worker but [Web Push](https://developers.google.com/web/fundamentals/push-notifications) 
-  is available for notifications & might be an interesting additional node for uibuilder. 
-  See the [push demo from Mozilla](https://serviceworke.rs/push-payload_demo.html). Push payloads can include JSON and binary.
-
-  [Workbox](https://developers.google.com/web/tools/workbox) - library for adding offline support.
-
-  [fxos-components/serviceworkerware](https://github.com/fxos-components/serviceworkerware#serviceworkerware): An Express-like layer on top of Service Workers to provide a way to easily plug functionality.
-
-* Add support for HTTP/2 with auto-push. See [http2-express-autopush - npm](https://www.npmjs.com/package/http2-express-autopush)
-* Add support for HTTP/3 and QUIC (available in Node.js v14, in preview with NGINX as at June 2022, websockets over http/3 is defined in RFC9220 in draft at June 2022). https://www.f5.com/company/blog/quic-will-eat-the-internet
-* Allow transfer of files via Socket.IO. https://stackoverflow.com/a/59224495/1309986
-* Allow switch of log.trace to log.info for advanced debugging (would need new switch in Editor or setting in settings.js:uibuilder)
-* New node: allowing a socket.io "room" to be defined. Will need to pick a current main instance from a dropdown (using API)
-   * Change FE to allow for rooms.
-
-* uibuilder "Knowledge Garden"
-  * Requirements
-    - Get a partial or full list of folders and/or files
-    - Display data in resizable panels
-    - Tree view for folders/files
-    - Markdown render and WYSIWYG/WYSIWFM editing - [mdxeditor](https://mdxeditor.dev/editor/demo), or vditor
-  * References
-    - [kajero/src at master · JoelOtter/kajero (github.com)](https://github.com/JoelOtter/kajero/tree/master/src) - interactive notebook
-    - [vditor/README_en_US.md at master · Vanessa219/vditor (github.com)](https://github.com/Vanessa219/vditor/blob/master/README_en_US.md), [Demo example - Vditor (b3log.org)](https://b3log.org/vditor/demo/index.html)
-    - [How to make a resizable panel control with Web Components - DEV Community 👩‍💻👨‍💻](https://dev.to/ndesmic/how-to-make-a-resizable-panel-control-with-web-components-2cpa)
-    - [Draggable & Resizable Panel Component For Vue 3 - Vue Script](https://www.vuescript.com/draggable-resizable-panel/)
-
-
-### Testing
-
-* Look at the possibility of using https://www.cypress.io/ to automate some front-end and Editor testing.
-
-
-----
+---
 
 ## Rejected
 
-* NEW NODE - `uib-get` - Gets data from a page's DOM. Will use the `uiGet` function. **No longer needed, use `msg._uib` commands in std msg.**
+[Rejected entries](roadmap/Rejected) - Don't repeat the mistakes!
 
 ## OLD
 
-**Update 2022-01-19**: These are the old entries from the WIKI To Do page. They need tidying up and consolidating into the newer structure.
-**Update 2022-06-18**: Now mostly tidied and consolidated. Just a few left that I want to keep for reference.
-
-### Ideas
-
-* Node(s) for specific web components. Possibly allowing the component to be pushed over ws. [Ref.1](https://markus.oberlehner.net/blog/distributed-vue-applications-pushing-content-and-component-updates-to-the-client/) - _[Keep for reference]_
-
-* Extend middleware hook feature to allow for different middleware for each node instance
-  instead of one for all instances.
-
-* Add safety validation checks to `msg` before allowing it to be sent/received to/from front-end
-
-  Started: script/style is removed if disallowed in settings, uibuilder control msgs dropped (since v1.0.0)
-
-* _We might need to add some checks for updated master templates? Maybe issue a warning? Not sure._
+[Archived old entries](roadmap/Old)
diff --git a/docs/security/securing-data.md b/docs/security/securing-data.md
index bc22b554..3769aaad 100644
--- a/docs/security/securing-data.md
+++ b/docs/security/securing-data.md
@@ -1,9 +1,10 @@
 ---
 title: Securing Data
-description: >
-   How to secure access to data when using Node-RED and uibuilder.
+description: |
+  How to secure access to data when using Node-RED and uibuilder.
 created: 2022-02-27 14:09:44
 lastUpdated: 2022-04-01 17:54:08
+updated: 2023-12-30 17:01:42
 ---
 
 It is best to read the [Securing uib web apps](security.md "Overview of general web app security with some specifics for Node-RED and uibuilder") page before this one as that page gives the overview of security in general.
diff --git a/docs/security/security.md b/docs/security/security.md
index 8e7d5b31..3f873feb 100644
--- a/docs/security/security.md
+++ b/docs/security/security.md
@@ -1,9 +1,10 @@
 ---
 title: uibuilder Security Documentation
-description: >
-   Some thoughts on how to correctly and safely secure a uibuilder app.
+description: |
+  Some thoughts on how to correctly and safely secure a uibuilder app.
 created: 2020-01-05 20:45:00
 lastUpdated: 2022-04-01 17:53:58
+updated: 2023-12-30 17:01:42
 ---
 
 As at uibuilder v5, many of the security features in uibuilder have been removed as they were never complete and were holding back other development. Security of web apps is best done using a dedicated service anyway. Typically a reverse-proxy using a web server can be used to provided integrated security and authentication. Such services can be independently tested and verified.
diff --git a/docs/security/uib-security-nginx.md b/docs/security/uib-security-nginx.md
index 9d7510cb..d2c84a05 100644
--- a/docs/security/uib-security-nginx.md
+++ b/docs/security/uib-security-nginx.md
@@ -1,9 +1,10 @@
 ---
 title: Using NGNX to secure uibuilder apps
-description: >
-   An outline on securing uibuilder web UI's using NGINX as a reverse proxy server.
+description: |
+  An outline on securing uibuilder web UI's using NGINX as a reverse proxy server.
 created: 2022-02-18 16:05:17
 lastUpdated: 2022-02-21 11:24:19
+updated: 2023-12-30 17:01:42
 ---
 
 ?> This page is DRAFT. I realise that it will confuse more than help as it stands. However, if you can be bothered to read through it a couple of times, you will realise that it already gives you many pointers on how to secure a uibuilder front-end web app using NGINX. Indeed it gives lots of information for securing any web site or web app using NGINX. 😁<br>I will be creating a step-by-step guide at some point and that should help simplify things.
diff --git a/docs/svelte.md b/docs/svelte.md
index 86edeca2..e4af3a79 100644
--- a/docs/svelte.md
+++ b/docs/svelte.md
@@ -1,9 +1,10 @@
 ---
 title: Using the Svelte framework with uibuilder
-description: >
+description: |
   How to make good use of the Svelte front-end framework with uibuilder and Node-RED.
 created: 2022-02-26 19:40:00
 lastUpdated: 2023-09-30 13:08:35
+updated: 2023-12-30 17:01:41
 ---
 
 The Svelte framework turns out to be one of the easiest frameworks to use in conjunction with uibuilder of those that requires a build step.
diff --git a/docs/uib-configuration.md b/docs/uib-configuration.md
index 6aaa1a57..13f1d84c 100644
--- a/docs/uib-configuration.md
+++ b/docs/uib-configuration.md
@@ -1,9 +1,10 @@
 ---
 title: Configuring UIBUILDER
-description: >
-   Describes how to change UIBUILDER's configuration, options and settings.
+description: |
+  Describes how to change UIBUILDER's configuration, options and settings.
 created: 2021-12-30 17:38:33
 lastUpdated: 2023-09-30 13:08:51
+updated: 2023-12-30 17:01:41
 ---
 
 ?> This page is about the global configuration of UIBUILDER. If you are looking for information on how to configure an individual `uibuilder` node instance, please refer to the [Configuring `uibuilder` nodes](uib-node-configuration.md) page. 
diff --git a/docs/uib-event-comms.md b/docs/uib-event-comms.md
index 7440ad07..8a5dd1e2 100644
--- a/docs/uib-event-comms.md
+++ b/docs/uib-event-comms.md
@@ -1,10 +1,10 @@
 ---
 title: Future multi-node communications
-description: >
-   Initially, UIBUILDER was a single node. However, there was always the intent to offer wider communications from other packages and nodes
-   to UIBUILDER-based front-end's. This document lays out a proposal for how that may happen.
+description: |
+  Initially, UIBUILDER was a single node. However, there was always the intent to offer wider communications from other packages and nodes to UIBUILDER-based front-end's. This document lays out a proposal for how that may happen.
 created: 2021-09-29 20:04:36
 lastUpdated: 2023-09-30 13:09:32
+updated: 2023-12-30 17:01:41
 ---
 
 Status: **Draft**
diff --git a/docs/uib-node-configuration.md b/docs/uib-node-configuration.md
index 8bcd18b1..bb80dd81 100644
--- a/docs/uib-node-configuration.md
+++ b/docs/uib-node-configuration.md
@@ -1,9 +1,10 @@
 ---
 title: Configuring uibuilder nodes
-description: >
-   Describes how to configure a uibuilder node.
+description: |
+  Describes how to configure a uibuilder node.
 created: 2022-04-09 18:09:19
 lastUpdated: 2023-02-05 16:57:42
+updated: 2023-12-30 17:01:41
 ---
 
 Content moved to [nodes/uibuilder](nodes/uibuilder.md)
diff --git a/docs/using/why-uibuilder.md b/docs/using/why-uibuilder.md
index f9e9958a..1871451c 100644
--- a/docs/using/why-uibuilder.md
+++ b/docs/using/why-uibuilder.md
@@ -1,10 +1,10 @@
 ---
 title: Why would I want to use UIBUILDER?
-description: >
-   Node-RED has several ways to deliver web pages already. Why would I want to use UIBUILDER instead?
-   And are there any times I might not want to use it?
+description: |
+  Node-RED has several ways to deliver web pages already. Why would I want to use UIBUILDER instead? And are there any times I might not want to use it?
 created: 2023-09-24 02:18:26
 lastUpdated: 2023-09-24 20:39:51
+updated: 2023-12-30 17:01:42
 ---
 
 ## UIBUILDER potential benefits
diff --git a/docs/using/zero-code-ui.md b/docs/using/zero-code-ui.md
index 37736313..222f9140 100644
--- a/docs/using/zero-code-ui.md
+++ b/docs/using/zero-code-ui.md
@@ -1,9 +1,10 @@
 ---
 title: Zero-code UI's
-description: >
-   Using uibuilder to create web pages and data-driven web apps without writing code
+description: |
+  Using uibuilder to create web pages and data-driven web apps without writing code
 created: 2023-02-22 01:06:09
 lastUpdated: 2023-02-22 01:06:15
+updated: 2023-12-30 17:01:42
 ---
 
 *(This document is a work-in-progress, it is not complete)*
diff --git a/docs/vue-complexities.md b/docs/vue-complexities.md
index ec4c1493..668a0f49 100644
--- a/docs/vue-complexities.md
+++ b/docs/vue-complexities.md
@@ -1,10 +1,10 @@
 ---
 title: Some complexities when using VueJS
-description: >
-   While VueJS is a powerful and flexible front-end framework, it isn't without its issues.
-   This page outlines some things to be wary of.
+description: |
+  While VueJS is a powerful and flexible front-end framework, it isn't without its issues. This page outlines some things to be wary of.
 created: 2022-02-15 16:28:47
 lastUpdated: 2022-02-15 16:54:48
+updated: 2023-12-30 17:01:41
 ---
 
 ## Reactive Variables
diff --git a/docs/vue-component-handling.md b/docs/vue-component-handling.md
index 87fb1911..f8fdeac7 100644
--- a/docs/vue-component-handling.md
+++ b/docs/vue-component-handling.md
@@ -1,10 +1,10 @@
 ---
 title: Special VueJS component handling in uibuilderfe
-description: >
-   For a while, VueJS along with bootstrap-vue were the default frameworks supplied with uibuilder.
-   As such, a few extra handlers were build into the uibuilderfe library. This page describes those features.
+description: |
+  For a while, VueJS along with bootstrap-vue were the default frameworks supplied with uibuilder. As such, a few extra handlers were build into the uibuilderfe library. This page describes those features.
 created: 2020-12-11 16:38:00
 lastUpdated: 2023-09-30 13:10:18
+updated: 2023-12-30 17:01:41
 ---
 
 Note that these do not impact the use of uibuilder with other (or no) frameworks and in those cases, the extra features will do nothing and won't get in the way.
diff --git a/docs/walkthrough1.md b/docs/walkthrough1.md
index 6d8c7124..f7fced35 100644
--- a/docs/walkthrough1.md
+++ b/docs/walkthrough1.md
@@ -1,10 +1,10 @@
 ---
 title: A first-timers walkthrough of using UIBUILDER
-description: >
-   If you haven't used UIBUILDER before, it can be a little confusing as it brings together concepts from
-   several different worlds. This walkthrough takes you from nothing to a basic data-driven web page.
+description: |
+  If you haven't used UIBUILDER before, it can be a little confusing as it brings together concepts from several different worlds. This walkthrough takes you from nothing to a basic data-driven web page.
 created: 2021-09-24 11:02:56
 lastUpdated: 2023-09-30 13:10:40
+updated: 2023-12-30 17:01:41
 ---
 
 Like UIBUILDER itself, this walkthrough may look complex. But you should bear in mind that if you follow the 7 steps in the [How to get started](#how-to-get-started-4-steps-to-a-data-driven-web-app) section, that is basically it.
diff --git a/docs/web-app-workflow.md b/docs/web-app-workflow.md
index e8710a32..b50c2859 100644
--- a/docs/web-app-workflow.md
+++ b/docs/web-app-workflow.md
@@ -1,9 +1,10 @@
 ---
 title: Creating a web app using uibuilder and Node-RED
-description: >
-   Some recommendations on how to use uibuilder to create data-driven web applications.
+description: |
+  Some recommendations on how to use uibuilder to create data-driven web applications.
 created: 2022-01-05 14:36:24
 lastUpdated: 2023-09-30 13:10:57
+updated: 2023-12-30 17:01:41
 ---
 
 While it does a few other things to help as well, uibuilder primarily provides these services:
diff --git a/docs/what-makes.md b/docs/what-makes.md
index b233c32a..1211c1ce 100644
--- a/docs/what-makes.md
+++ b/docs/what-makes.md
@@ -1,9 +1,10 @@
 ---
 title: What makes a good Node-RED Dashboard framework?
-description: >
-   Lays out what I think a good framework for building Node-RED dashboards would look like and what features it would have.
+description: |
+  Lays out what I think a good framework for building Node-RED dashboards would look like and what features it would have.
 created: 2021-09-17 09:28:09
 lastUpdated: 2023-09-30 15:01:50
+updated: 2023-12-30 17:01:41
 ---
 
 Status: **Incomplete**

From 450c5ca1f4ee9407a4b2ad995c1b98a6e4de1288 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Mon, 1 Jan 2024 12:28:20 +0000
Subject: [PATCH 65/78] Refactor to latest structure

---
 nodes/uib-element/customNode.html             | 541 +-----------------
 src/editor/uib-element/editor.js              | 536 -----------------
 src/editor/uib-element/main.html              |   7 +-
 .../uib-element/{template.html => panel.html} |   0
 4 files changed, 3 insertions(+), 1081 deletions(-)
 delete mode 100644 src/editor/uib-element/editor.js
 rename src/editor/uib-element/{template.html => panel.html} (100%)

diff --git a/nodes/uib-element/customNode.html b/nodes/uib-element/customNode.html
index 5f362af8..15f16785 100644
--- a/nodes/uib-element/customNode.html
+++ b/nodes/uib-element/customNode.html
@@ -16,6 +16,7 @@
 
 <link type="text/css" rel="stylesheet" href="./resources/node-red-contrib-uibuilder/ti-common.css" media="all">
 <script src="./resources/node-red-contrib-uibuilder/ti-common.js"></script>
+<script src="./resources/node-red-contrib-uibuilder/uib-element.js"></script>
 
 <template id="default-template">
     <p>
@@ -337,543 +338,3 @@ <h3>Details</h3>
 
 
 </script>
-
-<script type="text/javascript">
-    /* eslint-disable strict, sonarjs/no-duplicate-string, sonarjs/no-duplicated-branches */
-    
-    // Isolate this code
-    ;(function () {
-        'use strict'
-    
-        const mylog = window['uibuilder'].log
-    
-        /** Module name must match this nodes html file @constant {string} moduleName */
-        const moduleName = 'uib-element'
-        /** Node's label @constant {string} paletteCategory */
-        const nodeLabel = moduleName
-        /** Node's palette category @constant {string} paletteCategory */
-        const paletteCategory  = window['uibuilder'].paletteCategory
-        /** Node's background color @constant {string} paletteColor */
-        const paletteColor  = 'var(--uib-node-colour)' // '#E6E0F8'
-    
-        /** Element Types definitions */
-        const elTypes = {
-            table: {
-                value: 'table',
-                label: 'Simple Table',
-                description: `
-                    <p>
-                        A simple but accessible table. <b><a href="./uibuilder/docs/#/elements/tables" target="_blank">Docs</a></b>.
-                    </p><p>
-                        Set the input data to an <i>Array of Objects<i>.
-                        Each array entry will be a new row. Each property of the first array entry
-                        will be used for the column names.
-                    </p><p>
-                        An Object of Objects can also be used. In that case, the outer object's keys will be
-                        used as row names by adding a <code>data-row-name</code> attribute to each row.
-                    </p><p>
-                        Each column in the table has 
-                        <code>data-col-index</code> and <code>data-col-name</code> attributes. 
-                    </p>
-                `,
-                allowsParent: true,
-                allowsHead: true,
-                allowsPos: true,
-            },
-            sform: {
-                value: 'sform',
-                label: 'Simple Form',
-                description: `
-                    <p>
-                        A simple but accessible Form with inputs and buttons. <b><a href="./uibuilder/docs/#/elements/forms" target="_blank">Docs</a></b>.
-                    </p><p>
-                        Set the input data to an <i>Array of Objects<i>.
-                        Each array entry will be a new form input or button.
-                        An Object of Objects can also be used where the outer object is key'd by the ID of the entry.
-                    </p><p>
-                        Currently supported properties in the inner objects are: 
-                        <code>type=</code>One of the input types listed below, 
-                        <code>id=</code>Unique HTML identifier, 
-                        <code>label=</code>Label text of the input field or button, 
-                        <code>required=</code>true/false whether a value is required,
-                        <code>value=</code>Optional starting value.
-                    </p><p>
-                        Other properties can be provided. These only work with the appropriate input types and are otherwise ignored
-                    </p><p>
-                        Available input types are:
-                        button, checkbox, color, date, detetime-local, email, hidden, month, number, password, radio, range, tel, text, time, url, week.
-                        See <a href="https://developer.mozilla.org/en-US/docs/Web/HTML/Element/Input" target="_blank">this explanation of the types and properties</a>.
-                    </p><p>
-                        Some additional types will be made available in the future: select, combo, file, image, textarea. Auto-complete will also be added eventually.
-                    </p><p>
-                        If a button is included, pressing the button will automatically send a message from the client back to Node-RED
-                        All of the form data will be included in that message in <code>msg._ui.form</code>.
-                    </p>
-                `,
-                allowsParent: true,
-                allowsHead: true,
-                allowsPos: true,
-            },
-            ul: {
-                value: 'ul',
-                label: 'Unordered List (ul)',
-                description: `
-                    <p>
-                        Outputs a simple, accessible, bullet list.  <b><a href="./uibuilder/docs/#/elements/lists" target="_blank">Docs</a></b>.
-                    </p><p>
-                        Input data should be an array of strings.
-                        An object of key/values can also be used.
-                    </p>
-                `,
-                allowsParent: true,
-                allowsHead: true,
-                allowsPos: true,
-            },
-            ol: {
-                value: 'ol',
-                label: 'Ordered List (ol)',
-                description: `
-                    <p>
-                        Outputs a simple, accessible, numbered list. <b><a href="./uibuilder/docs/#/elements/lists" target="_blank">Docs</a></b>.
-                    </p><p>
-                        Input data should be an array of strings.
-                        An object of key/values can also be used.
-                    </p>
-                `,
-                allowsParent: true,
-                allowsHead: true,
-                allowsPos: true,
-            },
-            dl: {
-                value: 'dl',
-                label: 'Description List (dl)',
-                description: `
-                    <p>
-                        Outputs a simple, accessible, description list. <b><a href="./uibuilder/docs/#/elements/lists" target="_blank">Docs</a></b>.
-                    </p>
-                    <p>
-                        Set the input data to be an Array of Array's. The outer array representing each row 
-                        and the inner array containing at least 2 string entries representing the term/description pair.
-                        Additional entries in the inner array are added as secondary descriptions (<code>dd</code> tags).
-                    </p>
-                    <p>
-                        You can also use an Array of Objects where each object is a simple key/value pair. Or even an Object of Objects.
-                        Inner structures are catenated into a string separated by commas.
-                    </p>
-                    <p>
-                        Each entry has a wrapping <code>&lt;div></code> tag containing a term (<code>dt</code>) 
-                        and one or more descriptions (<code>dd</code>).
-                    </p>
-                `,
-                allowsParent: true,
-                allowsHead: true,
-                allowsPos: true,
-            },
-            article: {
-                value: 'article',
-                label: 'Text box',
-                description: `
-                    <p>
-                        A simple box containing text with an optional heading. <b><a href="./uibuilder/docs/#/elements/other" target="_blank">Docs</a></b>.
-                    </p>
-                `,
-                allowsParent: true,
-                allowsHead: true,
-                allowsPos: true,
-            },
-            html: {
-                value: 'html',
-                label: 'HTML',
-                description: /*html*/`
-                    <p>
-                        Pass-through HTML from the input data. When sent to the uibuilder node, will be reproduced in your page(s).
-                        Output is wrapped in a <code>div</code> but the optional heading is ignored. 
-                        <b><a href="./uibuilder/docs/#/elements/html" target="_blank">Docs</a></b>.
-                    </p>
-                    <p>
-                        May be used with the Node-RED core <code>template</code> node.
-                    </p>
-                    <p>
-                        <b>NOTE</b>: Use with caution, no validity checking is currently done unless the optional
-                        <a href="./uibuilder/docs/#/client-docs/readme?id=_1-dompurify-sanitises-html-to-ensure-safety-and-security" target="_blank">DOMPurify library</a>
-                        is loaded.
-                    </p>
-                `,
-                allowsParent: true,
-                allowsHead: false,
-                allowsPos: true,
-            },
-            markdown: {
-                value: 'markdown',
-                label: 'Markdown',
-                description: /*html*/`
-                    <p>
-                        Pass-through Markdown from the input data. When sent to the uibuilder node, will be reproduced as HTML in your page(s).
-                        Output is wrapped in a <code>div</code> but the optional heading is ignored.
-                        <b><a href="./uibuilder/docs/#/elements/markdown" target="_blank">Docs</a></b>.
-                    </p>
-                    <p>
-                        Markdown will not be rendered as HTML unless the optional
-                        <a href="./uibuilder/docs/#/client-docs/readme?id=_2-markdown-it-converts-markdown-markup-into-html" target="_blank">Markdown-IT library</a>
-                        is loaded.
-                    </p>
-                    <p>
-                        May be used with the Node-RED core <code>template</code> node.
-                    </p>
-                    <p>
-                        <b>NOTE</b>: Use with caution, no validity checking is currently done unless the optional <a href="./uibuilder/docs/#/client-docs/readme?id=_1-dompurify-sanitises-html-to-ensure-safety-and-security" target="_blank">DOMPurify library</a> is loaded.
-                    </p>
-                `,
-                allowsParent: true,
-                allowsHead: false,
-                allowsPos: true,
-            },
-            title: {
-                value: 'title',
-                label: 'Page Title',
-                description: `
-                    <p>
-                        Updates the HTML page title and meta description.  <b><a href="./uibuilder/docs/#/elements/lists" target="_blank">Docs</a></b>.
-                    </p>
-                    <p>
-                        Amends the first <code>&lt;h1></code> tag on the page if it exists else adds one at the top of the page.
-                        There should only ever be one H1 tag on a page.
-                    </p>
-                    <p>
-                        The <b>Parent</b> and <b>HTML ID</b> are ignored in this case
-                    </p>
-                    <p>
-                        The input data must be a simple string.
-                    </p>
-                `,
-                allowsParent: false,
-                allowsHead: false,
-                allowsPos: false,
-            },
-            li: {
-                value: 'li',
-                label: 'Add row to existing ordered or unordered list',
-                description: `
-                    <p>
-                        Always add a new row to an existing list. (no replace). <b><a href="./uibuilder/docs/#/elements/lists" target="_blank">Docs</a></b>.
-                    </p><p>
-                        Set the <b>Parent</b> to the id of the existing table.
-                    </p><p>
-                        Set the input data to a string.
-                    </p><p>
-                        Set the <b>Position</b> to "first", "last" or a number.
-                    </p>
-                `,
-                allowsParent: true,
-                allowsHead: false,
-                allowsPos: true,
-            },
-            tr: {
-                value: 'tr',
-                label: 'Add row to existing table',
-                description: `
-                    <p>
-                        Always add a new row to an existing table (no replace). <b><a href="./uibuilder/docs/#/elements/tables" target="_blank">Docs</a></b>.
-                    </p><p>
-                        Set the <b>Parent</b> to the id of the existing table.
-                    </p><p>
-                        Set the input data to an <i>Object<i>.
-                        The properties of the object must match the column definitions of the existing table.
-                    </p><p>
-                        Set the <b>Position</b> to "first", "last" or a number.
-                    </p>
-                `,
-                allowsParent: true,
-                allowsHead: false,
-                allowsPos: true,
-            },
-        }
-    
-        // Standard typed input types for string fields
-        const stdStrTypes = [
-            'msg', 'flow', 'global',
-            'str', 'env', 'jsonata', 're',
-        ]
-        // Standard width for typed input fields
-        const tiWidth = '68.5%'
-    
-        /** Prep for edit
-         * @param {*} node A node instance as seen from the Node-RED Editor
-         */
-        function onEditPrepare(node) {
-            // Initial config data
-            if (!node.confData) node.confData = {}
-            if (!node.parent || node.parent === '') $('#node-input-parent').val('body')
-            if (!node.position || node.position === '') {
-                $('#node-input-position').val('last')
-                node.position = 'last'
-            }
-    
-            // initial checkbox states
-            if (!node.passthrough) node.passthrough = false
-    
-            // Define element types for drop-down
-            $('#node-input-elementtype').typedInput({
-                types: [
-                    {
-                        value: 'elementType',
-                        options: Object.values(elTypes),
-                    }
-                ]
-            // On-change of element type, update the info panel
-            }).on('change', function() {
-                // @ts-ignore
-                if (elTypes[this.value].description === undefined) elTypes[this.value].description = 'No description available.'
-                // @ts-ignore
-                $('#type-info').html(elTypes[this.value].description)
-    
-                // @ts-ignore
-                if ( elTypes[this.value].allowsParent === false ) $('#node-input-parent').prop('disabled', true)
-                else $('#node-input-parent').prop('disabled', false)
-    
-                // @ts-ignore
-                if ( elTypes[this.value].allowsHead === false ) $('#node-input-heading').typedInput('disable')
-                else $('#node-input-heading').typedInput('enable')
-    
-                // @ts-ignore
-                if ( elTypes[this.value].allowsPos === false ) $('#node-input-position').prop('disabled', true)
-                else $('#node-input-position').prop('disabled', false)
-    
-                // TODO If type is heading - change parent to disabled (perhaps hide the input)
-            })
-    
-            // parent selector typed input - https://nodered.org/docs/api/ui/typedInput/
-            $('#node-input-parent').typedInput({
-                types: stdStrTypes,
-                default: 'str',
-                typeField: $('#node-input-parentSourceType'),
-            }).typedInput('width', tiWidth)
-    
-            // element id typed input
-            $('#node-input-elementid')
-                .typedInput({
-                    types: stdStrTypes,
-                    default: 'str',
-                    typeField: $('#node-input-elementIdSourceType'),
-                }).typedInput('width', tiWidth)
-    
-            // Set up optional heading input
-            $('#node-input-heading').typedInput({
-                types: stdStrTypes,
-                default: 'str',
-                typeField: $('#node-input-headingSourceType'),
-            }).typedInput('width', '56.5%')
-    
-            // @ts-ignore core data typed input
-            $('#node-input-data').typedInput({
-                // types: stdStrTypes,
-                default: 'msg',
-                typeField: $('#node-input-dataSourceType'),
-            }).on('change', function(event, type, value) {
-                // console.log('change')
-                if ( type === 'msg' && !this.value ) {
-                    $('#node-input-data').typedInput('value', 'payload')
-                    // console.log('change 2')
-                }
-            } ).typedInput('width', tiWidth)
-    
-            // position typed input
-            $('#node-input-position').typedInput({
-                types: stdStrTypes,
-                default: 'str',
-                typeField: $('#node-input-positionSourceType'),
-            }).typedInput('width', tiWidth)
-    
-            // Ensure data value never blank
-            // $('#node-input-data').on('change', function(event, type, value) {
-            //     if ( !value ) {
-            //         if ( type === 'msg' ) $('#node-input-data').typedInput('value', 'payload')
-            //     }
-            // } )
-    
-            // Make position of aria-labels dynamic to cursor
-            // $('#ti-edit-panel *[aria-label]').on('mousemove', function(event) {
-            //     document.documentElement.style.setProperty('--x', event.pageX )
-            //     document.documentElement.style.setProperty('--y', event.pageY )
-            //     document.documentElement.style.setProperty('--moveX', event.originalEvent.movementX )
-            //     document.documentElement.style.setProperty('--moveY', event.originalEvent.movementY )
-            //     console.log(event)
-            //     // document.documentElement.style.setProperty('--x', event.clientX)
-            //     // document.documentElement.style.setProperty('--y', event.clientY)
-            //     // $(this).prop('style', `top:${event.pageY}px;left:${event.pageX}`)
-            // })
-    
-            // TODO reset unused conf props on type change?
-    
-            // Delegated event handler for conf data - just marks things as changed
-            $('#el-tab-conf').on('change', '[data-uib-el-prop]', function() {
-                $(this).attr('data-changed', 'true')
-            })
-    
-            const tabs = RED.tabs.create({
-                id: 'el-tabs',
-                // scrollable: true,
-                // collapsible: true,
-                onchange: function (tab) {
-                    let templ, docFrag
-                    $('#el-tabs-content').children().hide()
-                    // Populate the element config tab based on type
-                    if ( tab.id === 'el-tab-conf') {
-                        const type = $('#node-input-elementtype').val()
-                        switch (type) { // eslint-disable-line sonarjs/no-small-switch
-                            // case 'text': {
-                            //     templ = document.querySelector('#text-template')
-                            //     break
-                            // }
-    
-                            // case 'table': {
-                            //     templ = document.querySelector('#table-template')
-                            //     break
-                            // }
-    
-                            // case 'list':
-                            // case 'ol':
-                            // case 'ul':
-                            // case 'dl': {
-                            //     templ = document.querySelector('#list-template')
-                            //     break
-                            // }
-    
-                            default: {
-                                // templ = document.createElement('template')
-                                templ = document.querySelector('#default-template')
-                                break
-                            }
-                        }
-                        // @ts-ignore - Clone the template and apply to the UI
-                        docFrag = templ.content.cloneNode(true)
-                        $('#el-tab-conf').append(docFrag)
-                        // Get any required functions for this type from the template (append runs the script tags immediately)
-                        const confFns = window['uibElementConfigFns']
-                        // console.log('confFns', confFns.type, confFns)
-                        // Re-constitute node.conf properties and values to the conf tab
-                        // TODO Deal with select tags
-                        Object.keys(node.confData).forEach( conf => {
-                            $(`#conf-${type}-${conf}`).val(node.confData[conf])
-                        })
-                    } else {
-                        $('#el-tab-conf').empty()
-                    }
-                    $('#' + tab.id).show()
-                }
-            })
-            tabs.addTab({
-                id: 'el-tab-main',
-                label: 'Main'
-            })
-            tabs.addTab({
-                id: 'el-tab-conf',
-                label: 'Element Config'
-            })
-    
-            window['tiDoTooltips']('#ti-edit-panel') // Do this at the end
-        } // ----- end of onEditPrepare() ----- //
-    
-        /** Prep for save
-         * @param {*} node A node instance as seen from the Node-RED Editor
-         */
-        function onEditSave(node) {
-            $('[data-changed="true"]').each(function(i) {
-                node.confData[this.dataset.prop] = $(this).val()
-                node.changed = true
-                RED.nodes.dirty(true)
-            })
-        } // ----- end of onEditPrepare() ----- //
-    
-        //#region ---- Validation functions ---- //
-    
-        /** Validate a typed input as a string
-         * Must not be JSON. Can be a number only if allowNum=true. Can be an empty string only if allowBlank=true
-         * Sets typedInput border to red if not valid since custom validation not available on std typedInput types
-         * @param {string} value Input value
-         * @param {string} inpName Input field name
-         * @param {boolean} allowBlank true=allow blank string. Default=true
-         * @param {boolean} allowNum true=allow numeric input. Default=false
-         * @returns {boolean} True if valid
-         */
-        function tiValidateOptString(value, inpName, allowBlank = true, allowNum = false) {
-            let isValid = true
-            let f
-            try {
-                f = value.slice(0, 1)
-            } catch (e) {}
-    
-            if (allowBlank === false && value === '') {
-                isValid = false
-                // console.log({ name: inpName, why: 'Blank failed', value: value, allowBlank: allowBlank })
-            }
-    
-            if ( allowNum === false && (value !== '' && !isNaN(Number(value))) ) {
-                isValid = false
-                // console.log({ name: inpName, why: 'Num failed', value: value, allowNum: allowNum })
-            }
-    
-            if ( f === '{' || f === '[' ) isValid = false
-    
-            $(`#node-input-${inpName} + .red-ui-typedInput-container`).css('border-color', isValid ? 'var(--red-ui-form-input-border-color)' : 'red')
-            return isValid
-        }
-    
-        //#endregion ---- Validation functions ---- //
-    
-        RED.nodes.registerType(moduleName, {
-            category: paletteCategory,
-            color: paletteColor,
-            defaults: {
-                name: { value: '' },
-                topic: { value: '' },
-    
-                elementtype: { value: 'table', required: true },
-    
-                parent: { value: 'body', validate: (v) => tiValidateOptString(v, 'parent', false, false) },
-                parentSource: { value: '' }, // ! only here to allow for migration to parentSource field - remove after go-live of v6.1
-                parentSourceType: { value: 'str' },
-    
-                elementid: { value: '', validate: (v) => tiValidateOptString(v, 'elementid', true, false) },
-                elementId: { value: '' }, // ! TODO remove after go-live 6.1
-                elementIdSourceType: { value: 'str' },
-    
-                heading: { value: '', validate: (v) => tiValidateOptString(v, 'heading', true, false) },
-                headingSourceType: { value: 'str' },
-                headingLevel: { value: 'h2', required: true },
-    
-                data: { value: 'payload' },
-                dataSourceType: { value: 'msg' },
-    
-                position: { value: 'last', validate: (v) => tiValidateOptString(v, 'position', false, true) },
-                positionSourceType: { value: 'str' },
-    
-                passthrough: { value: false },
-    
-                // Configuration data specific to the chosen type
-                confData: { value: {} },
-            },
-            align: 'left',
-            inputs: 1,
-            inputLabels: '',
-            outputs: 1,
-            outputLabels: ['uibuilder dynamic UI configuration'],
-            icon: 'pencilBoxMultipleWhite.svg',
-            paletteLabel: nodeLabel,
-            label: function () {
-                return this.name || `[${this.elementtype}] ${this.parent ? `${this.parent}.` : ''}${this.elementid || moduleName}`
-            },
-    
-            /** Prepares the Editor panel */
-            oneditprepare: function () { onEditPrepare(this) },
-    
-            /** Runs before save (Actually when Done button pressed) - oneditsave */
-            oneditsave: function () { onEditSave(this) },
-    
-            /** Runs before cancel - oneditcancel */
-            /** Handle window resizing for the editor - oneditresize */
-            /** Show notification warning before allowing delete - oneditdelete */
-        }) // ---- End of registerType() ---- //
-    }())
-    
-</script>
diff --git a/src/editor/uib-element/editor.js b/src/editor/uib-element/editor.js
deleted file mode 100644
index 7cce8acc..00000000
--- a/src/editor/uib-element/editor.js
+++ /dev/null
@@ -1,536 +0,0 @@
-/* eslint-disable strict, sonarjs/no-duplicate-string, sonarjs/no-duplicated-branches */
-
-// Isolate this code
-;(function () {
-    'use strict'
-
-    const mylog = window['uibuilder'].log
-
-    /** Module name must match this nodes html file @constant {string} moduleName */
-    const moduleName = 'uib-element'
-    /** Node's label @constant {string} paletteCategory */
-    const nodeLabel = moduleName
-    /** Node's palette category @constant {string} paletteCategory */
-    const paletteCategory  = window['uibuilder'].paletteCategory
-    /** Node's background color @constant {string} paletteColor */
-    const paletteColor  = 'var(--uib-node-colour)' // '#E6E0F8'
-
-    /** Element Types definitions */
-    const elTypes = {
-        table: {
-            value: 'table',
-            label: 'Simple Table',
-            description: `
-                <p>
-                    A simple but accessible table. <b><a href="./uibuilder/docs/#/elements/tables" target="_blank">Docs</a></b>.
-                </p><p>
-                    Set the input data to an <i>Array of Objects<i>.
-                    Each array entry will be a new row. Each property of the first array entry
-                    will be used for the column names.
-                </p><p>
-                    An Object of Objects can also be used. In that case, the outer object's keys will be
-                    used as row names by adding a <code>data-row-name</code> attribute to each row.
-                </p><p>
-                    Each column in the table has 
-                    <code>data-col-index</code> and <code>data-col-name</code> attributes. 
-                </p>
-            `,
-            allowsParent: true,
-            allowsHead: true,
-            allowsPos: true,
-        },
-        sform: {
-            value: 'sform',
-            label: 'Simple Form',
-            description: `
-                <p>
-                    A simple but accessible Form with inputs and buttons. <b><a href="./uibuilder/docs/#/elements/forms" target="_blank">Docs</a></b>.
-                </p><p>
-                    Set the input data to an <i>Array of Objects<i>.
-                    Each array entry will be a new form input or button.
-                    An Object of Objects can also be used where the outer object is key'd by the ID of the entry.
-                </p><p>
-                    Currently supported properties in the inner objects are: 
-                    <code>type=</code>One of the input types listed below, 
-                    <code>id=</code>Unique HTML identifier, 
-                    <code>label=</code>Label text of the input field or button, 
-                    <code>required=</code>true/false whether a value is required,
-                    <code>value=</code>Optional starting value.
-                </p><p>
-                    Other properties can be provided. These only work with the appropriate input types and are otherwise ignored
-                </p><p>
-                    Available input types are:
-                    button, checkbox, color, date, detetime-local, email, hidden, month, number, password, radio, range, tel, text, time, url, week.
-                    See <a href="https://developer.mozilla.org/en-US/docs/Web/HTML/Element/Input" target="_blank">this explanation of the types and properties</a>.
-                </p><p>
-                    Some additional types will be made available in the future: select, combo, file, image, textarea. Auto-complete will also be added eventually.
-                </p><p>
-                    If a button is included, pressing the button will automatically send a message from the client back to Node-RED
-                    All of the form data will be included in that message in <code>msg._ui.form</code>.
-                </p>
-            `,
-            allowsParent: true,
-            allowsHead: true,
-            allowsPos: true,
-        },
-        ul: {
-            value: 'ul',
-            label: 'Unordered List (ul)',
-            description: `
-                <p>
-                    Outputs a simple, accessible, bullet list.  <b><a href="./uibuilder/docs/#/elements/lists" target="_blank">Docs</a></b>.
-                </p><p>
-                    Input data should be an array of strings.
-                    An object of key/values can also be used.
-                </p>
-            `,
-            allowsParent: true,
-            allowsHead: true,
-            allowsPos: true,
-        },
-        ol: {
-            value: 'ol',
-            label: 'Ordered List (ol)',
-            description: `
-                <p>
-                    Outputs a simple, accessible, numbered list. <b><a href="./uibuilder/docs/#/elements/lists" target="_blank">Docs</a></b>.
-                </p><p>
-                    Input data should be an array of strings.
-                    An object of key/values can also be used.
-                </p>
-            `,
-            allowsParent: true,
-            allowsHead: true,
-            allowsPos: true,
-        },
-        dl: {
-            value: 'dl',
-            label: 'Description List (dl)',
-            description: `
-                <p>
-                    Outputs a simple, accessible, description list. <b><a href="./uibuilder/docs/#/elements/lists" target="_blank">Docs</a></b>.
-                </p>
-                <p>
-                    Set the input data to be an Array of Array's. The outer array representing each row 
-                    and the inner array containing at least 2 string entries representing the term/description pair.
-                    Additional entries in the inner array are added as secondary descriptions (<code>dd</code> tags).
-                </p>
-                <p>
-                    You can also use an Array of Objects where each object is a simple key/value pair. Or even an Object of Objects.
-                    Inner structures are catenated into a string separated by commas.
-                </p>
-                <p>
-                    Each entry has a wrapping <code>&lt;div></code> tag containing a term (<code>dt</code>) 
-                    and one or more descriptions (<code>dd</code>).
-                </p>
-            `,
-            allowsParent: true,
-            allowsHead: true,
-            allowsPos: true,
-        },
-        article: {
-            value: 'article',
-            label: 'Text box',
-            description: `
-                <p>
-                    A simple box containing text with an optional heading. <b><a href="./uibuilder/docs/#/elements/other" target="_blank">Docs</a></b>.
-                </p>
-            `,
-            allowsParent: true,
-            allowsHead: true,
-            allowsPos: true,
-        },
-        html: {
-            value: 'html',
-            label: 'HTML',
-            description: /*html*/`
-                <p>
-                    Pass-through HTML from the input data. When sent to the uibuilder node, will be reproduced in your page(s).
-                    Output is wrapped in a <code>div</code> but the optional heading is ignored. 
-                    <b><a href="./uibuilder/docs/#/elements/html" target="_blank">Docs</a></b>.
-                </p>
-                <p>
-                    May be used with the Node-RED core <code>template</code> node.
-                </p>
-                <p>
-                    <b>NOTE</b>: Use with caution, no validity checking is currently done unless the optional
-                    <a href="./uibuilder/docs/#/client-docs/readme?id=_1-dompurify-sanitises-html-to-ensure-safety-and-security" target="_blank">DOMPurify library</a>
-                    is loaded.
-                </p>
-            `,
-            allowsParent: true,
-            allowsHead: false,
-            allowsPos: true,
-        },
-        markdown: {
-            value: 'markdown',
-            label: 'Markdown',
-            description: /*html*/`
-                <p>
-                    Pass-through Markdown from the input data. When sent to the uibuilder node, will be reproduced as HTML in your page(s).
-                    Output is wrapped in a <code>div</code> but the optional heading is ignored.
-                    <b><a href="./uibuilder/docs/#/elements/markdown" target="_blank">Docs</a></b>.
-                </p>
-                <p>
-                    Markdown will not be rendered as HTML unless the optional
-                    <a href="./uibuilder/docs/#/client-docs/readme?id=_2-markdown-it-converts-markdown-markup-into-html" target="_blank">Markdown-IT library</a>
-                    is loaded.
-                </p>
-                <p>
-                    May be used with the Node-RED core <code>template</code> node.
-                </p>
-                <p>
-                    <b>NOTE</b>: Use with caution, no validity checking is currently done unless the optional <a href="./uibuilder/docs/#/client-docs/readme?id=_1-dompurify-sanitises-html-to-ensure-safety-and-security" target="_blank">DOMPurify library</a> is loaded.
-                </p>
-            `,
-            allowsParent: true,
-            allowsHead: false,
-            allowsPos: true,
-        },
-        title: {
-            value: 'title',
-            label: 'Page Title',
-            description: `
-                <p>
-                    Updates the HTML page title and meta description.  <b><a href="./uibuilder/docs/#/elements/lists" target="_blank">Docs</a></b>.
-                </p>
-                <p>
-                    Amends the first <code>&lt;h1></code> tag on the page if it exists else adds one at the top of the page.
-                    There should only ever be one H1 tag on a page.
-                </p>
-                <p>
-                    The <b>Parent</b> and <b>HTML ID</b> are ignored in this case
-                </p>
-                <p>
-                    The input data must be a simple string.
-                </p>
-            `,
-            allowsParent: false,
-            allowsHead: false,
-            allowsPos: false,
-        },
-        li: {
-            value: 'li',
-            label: 'Add row to existing ordered or unordered list',
-            description: `
-                <p>
-                    Always add a new row to an existing list. (no replace). <b><a href="./uibuilder/docs/#/elements/lists" target="_blank">Docs</a></b>.
-                </p><p>
-                    Set the <b>Parent</b> to the id of the existing table.
-                </p><p>
-                    Set the input data to a string.
-                </p><p>
-                    Set the <b>Position</b> to "first", "last" or a number.
-                </p>
-            `,
-            allowsParent: true,
-            allowsHead: false,
-            allowsPos: true,
-        },
-        tr: {
-            value: 'tr',
-            label: 'Add row to existing table',
-            description: `
-                <p>
-                    Always add a new row to an existing table (no replace). <b><a href="./uibuilder/docs/#/elements/tables" target="_blank">Docs</a></b>.
-                </p><p>
-                    Set the <b>Parent</b> to the id of the existing table.
-                </p><p>
-                    Set the input data to an <i>Object<i>.
-                    The properties of the object must match the column definitions of the existing table.
-                </p><p>
-                    Set the <b>Position</b> to "first", "last" or a number.
-                </p>
-            `,
-            allowsParent: true,
-            allowsHead: false,
-            allowsPos: true,
-        },
-    }
-
-    // Standard typed input types for string fields
-    const stdStrTypes = [
-        'msg', 'flow', 'global',
-        'str', 'env', 'jsonata', 're',
-    ]
-    // Standard width for typed input fields
-    const tiWidth = '68.5%'
-
-    /** Prep for edit
-     * @param {*} node A node instance as seen from the Node-RED Editor
-     */
-    function onEditPrepare(node) {
-        // Initial config data
-        if (!node.confData) node.confData = {}
-        if (!node.parent || node.parent === '') $('#node-input-parent').val('body')
-        if (!node.position || node.position === '') {
-            $('#node-input-position').val('last')
-            node.position = 'last'
-        }
-
-        // initial checkbox states
-        if (!node.passthrough) node.passthrough = false
-
-        // Define element types for drop-down
-        $('#node-input-elementtype').typedInput({
-            types: [
-                {
-                    value: 'elementType',
-                    options: Object.values(elTypes),
-                }
-            ]
-        // On-change of element type, update the info panel
-        }).on('change', function() {
-            // @ts-ignore
-            if (elTypes[this.value].description === undefined) elTypes[this.value].description = 'No description available.'
-            // @ts-ignore
-            $('#type-info').html(elTypes[this.value].description)
-
-            // @ts-ignore
-            if ( elTypes[this.value].allowsParent === false ) $('#node-input-parent').prop('disabled', true)
-            else $('#node-input-parent').prop('disabled', false)
-
-            // @ts-ignore
-            if ( elTypes[this.value].allowsHead === false ) $('#node-input-heading').typedInput('disable')
-            else $('#node-input-heading').typedInput('enable')
-
-            // @ts-ignore
-            if ( elTypes[this.value].allowsPos === false ) $('#node-input-position').prop('disabled', true)
-            else $('#node-input-position').prop('disabled', false)
-
-            // TODO If type is heading - change parent to disabled (perhaps hide the input)
-        })
-
-        // parent selector typed input - https://nodered.org/docs/api/ui/typedInput/
-        $('#node-input-parent').typedInput({
-            types: stdStrTypes,
-            default: 'str',
-            typeField: $('#node-input-parentSourceType'),
-        }).typedInput('width', tiWidth)
-
-        // element id typed input
-        $('#node-input-elementid')
-            .typedInput({
-                types: stdStrTypes,
-                default: 'str',
-                typeField: $('#node-input-elementIdSourceType'),
-            }).typedInput('width', tiWidth)
-
-        // Set up optional heading input
-        $('#node-input-heading').typedInput({
-            types: stdStrTypes,
-            default: 'str',
-            typeField: $('#node-input-headingSourceType'),
-        }).typedInput('width', '56.5%')
-
-        // @ts-ignore core data typed input
-        $('#node-input-data').typedInput({
-            // types: stdStrTypes,
-            default: 'msg',
-            typeField: $('#node-input-dataSourceType'),
-        }).on('change', function(event, type, value) {
-            // console.log('change')
-            if ( type === 'msg' && !this.value ) {
-                $('#node-input-data').typedInput('value', 'payload')
-                // console.log('change 2')
-            }
-        } ).typedInput('width', tiWidth)
-
-        // position typed input
-        $('#node-input-position').typedInput({
-            types: stdStrTypes,
-            default: 'str',
-            typeField: $('#node-input-positionSourceType'),
-        }).typedInput('width', tiWidth)
-
-        // Ensure data value never blank
-        // $('#node-input-data').on('change', function(event, type, value) {
-        //     if ( !value ) {
-        //         if ( type === 'msg' ) $('#node-input-data').typedInput('value', 'payload')
-        //     }
-        // } )
-
-        // Make position of aria-labels dynamic to cursor
-        // $('#ti-edit-panel *[aria-label]').on('mousemove', function(event) {
-        //     document.documentElement.style.setProperty('--x', event.pageX )
-        //     document.documentElement.style.setProperty('--y', event.pageY )
-        //     document.documentElement.style.setProperty('--moveX', event.originalEvent.movementX )
-        //     document.documentElement.style.setProperty('--moveY', event.originalEvent.movementY )
-        //     console.log(event)
-        //     // document.documentElement.style.setProperty('--x', event.clientX)
-        //     // document.documentElement.style.setProperty('--y', event.clientY)
-        //     // $(this).prop('style', `top:${event.pageY}px;left:${event.pageX}`)
-        // })
-
-        // TODO reset unused conf props on type change?
-
-        // Delegated event handler for conf data - just marks things as changed
-        $('#el-tab-conf').on('change', '[data-uib-el-prop]', function() {
-            $(this).attr('data-changed', 'true')
-        })
-
-        const tabs = RED.tabs.create({
-            id: 'el-tabs',
-            // scrollable: true,
-            // collapsible: true,
-            onchange: function (tab) {
-                let templ, docFrag
-                $('#el-tabs-content').children().hide()
-                // Populate the element config tab based on type
-                if ( tab.id === 'el-tab-conf') {
-                    const type = $('#node-input-elementtype').val()
-                    switch (type) { // eslint-disable-line sonarjs/no-small-switch
-                        // case 'text': {
-                        //     templ = document.querySelector('#text-template')
-                        //     break
-                        // }
-
-                        // case 'table': {
-                        //     templ = document.querySelector('#table-template')
-                        //     break
-                        // }
-
-                        // case 'list':
-                        // case 'ol':
-                        // case 'ul':
-                        // case 'dl': {
-                        //     templ = document.querySelector('#list-template')
-                        //     break
-                        // }
-
-                        default: {
-                            // templ = document.createElement('template')
-                            templ = document.querySelector('#default-template')
-                            break
-                        }
-                    }
-                    // @ts-ignore - Clone the template and apply to the UI
-                    docFrag = templ.content.cloneNode(true)
-                    $('#el-tab-conf').append(docFrag)
-                    // Get any required functions for this type from the template (append runs the script tags immediately)
-                    const confFns = window['uibElementConfigFns']
-                    // console.log('confFns', confFns.type, confFns)
-                    // Re-constitute node.conf properties and values to the conf tab
-                    // TODO Deal with select tags
-                    Object.keys(node.confData).forEach( conf => {
-                        $(`#conf-${type}-${conf}`).val(node.confData[conf])
-                    })
-                } else {
-                    $('#el-tab-conf').empty()
-                }
-                $('#' + tab.id).show()
-            }
-        })
-        tabs.addTab({
-            id: 'el-tab-main',
-            label: 'Main'
-        })
-        tabs.addTab({
-            id: 'el-tab-conf',
-            label: 'Element Config'
-        })
-
-        window['tiDoTooltips']('#ti-edit-panel') // Do this at the end
-    } // ----- end of onEditPrepare() ----- //
-
-    /** Prep for save
-     * @param {*} node A node instance as seen from the Node-RED Editor
-     */
-    function onEditSave(node) {
-        $('[data-changed="true"]').each(function(i) {
-            node.confData[this.dataset.prop] = $(this).val()
-            node.changed = true
-            RED.nodes.dirty(true)
-        })
-    } // ----- end of onEditPrepare() ----- //
-
-    //#region ---- Validation functions ---- //
-
-    /** Validate a typed input as a string
-     * Must not be JSON. Can be a number only if allowNum=true. Can be an empty string only if allowBlank=true
-     * Sets typedInput border to red if not valid since custom validation not available on std typedInput types
-     * @param {string} value Input value
-     * @param {string} inpName Input field name
-     * @param {boolean} allowBlank true=allow blank string. Default=true
-     * @param {boolean} allowNum true=allow numeric input. Default=false
-     * @returns {boolean} True if valid
-     */
-    function tiValidateOptString(value, inpName, allowBlank = true, allowNum = false) {
-        let isValid = true
-        let f
-        try {
-            f = value.slice(0, 1)
-        } catch (e) {}
-
-        if (allowBlank === false && value === '') {
-            isValid = false
-            // console.log({ name: inpName, why: 'Blank failed', value: value, allowBlank: allowBlank })
-        }
-
-        if ( allowNum === false && (value !== '' && !isNaN(Number(value))) ) {
-            isValid = false
-            // console.log({ name: inpName, why: 'Num failed', value: value, allowNum: allowNum })
-        }
-
-        if ( f === '{' || f === '[' ) isValid = false
-
-        $(`#node-input-${inpName} + .red-ui-typedInput-container`).css('border-color', isValid ? 'var(--red-ui-form-input-border-color)' : 'red')
-        return isValid
-    }
-
-    //#endregion ---- Validation functions ---- //
-
-    RED.nodes.registerType(moduleName, {
-        category: paletteCategory,
-        color: paletteColor,
-        defaults: {
-            name: { value: '' },
-            topic: { value: '' },
-
-            elementtype: { value: 'table', required: true },
-
-            parent: { value: 'body', validate: (v) => tiValidateOptString(v, 'parent', false, false) },
-            parentSource: { value: '' }, // ! only here to allow for migration to parentSource field - remove after go-live of v6.1
-            parentSourceType: { value: 'str' },
-
-            elementid: { value: '', validate: (v) => tiValidateOptString(v, 'elementid', true, false) },
-            elementId: { value: '' }, // ! TODO remove after go-live 6.1
-            elementIdSourceType: { value: 'str' },
-
-            heading: { value: '', validate: (v) => tiValidateOptString(v, 'heading', true, false) },
-            headingSourceType: { value: 'str' },
-            headingLevel: { value: 'h2', required: true },
-
-            data: { value: 'payload' },
-            dataSourceType: { value: 'msg' },
-
-            position: { value: 'last', validate: (v) => tiValidateOptString(v, 'position', false, true) },
-            positionSourceType: { value: 'str' },
-
-            passthrough: { value: false },
-
-            // Configuration data specific to the chosen type
-            confData: { value: {} },
-        },
-        align: 'left',
-        inputs: 1,
-        inputLabels: '',
-        outputs: 1,
-        outputLabels: ['uibuilder dynamic UI configuration'],
-        icon: 'pencilBoxMultipleWhite.svg',
-        paletteLabel: nodeLabel,
-        label: function () {
-            return this.name || `[${this.elementtype}] ${this.parent ? `${this.parent}.` : ''}${this.elementid || moduleName}`
-        },
-
-        /** Prepares the Editor panel */
-        oneditprepare: function () { onEditPrepare(this) },
-
-        /** Runs before save (Actually when Done button pressed) - oneditsave */
-        oneditsave: function () { onEditSave(this) },
-
-        /** Runs before cancel - oneditcancel */
-        /** Handle window resizing for the editor - oneditresize */
-        /** Show notification warning before allowing delete - oneditdelete */
-    }) // ---- End of registerType() ---- //
-}())
diff --git a/src/editor/uib-element/main.html b/src/editor/uib-element/main.html
index 4d43992b..b70951d2 100644
--- a/src/editor/uib-element/main.html
+++ b/src/editor/uib-element/main.html
@@ -16,6 +16,7 @@
 
 <link type="text/css" rel="stylesheet" href="./resources/node-red-contrib-uibuilder/ti-common.css" media="all">
 <script src="./resources/node-red-contrib-uibuilder/ti-common.js"></script>
+<script src="./resources/node-red-contrib-uibuilder/uib-element.js"></script>
 
 <template id="default-template">
     <!--=include conf-templates/default-template.html -->
@@ -42,13 +43,9 @@
 </style>
 
 <script type="text/html" data-template-name="uib-element">
-<!--=include template.html -->
+<!--=include panel.html -->
 </script>
 
 <script type="text/html" data-help-name="uib-element">
 <!--=include help.html -->
 </script>
-
-<script type="text/javascript">
-    /*=include editor.js */  // eslint-disable-line spaced-comment
-</script>
diff --git a/src/editor/uib-element/template.html b/src/editor/uib-element/panel.html
similarity index 100%
rename from src/editor/uib-element/template.html
rename to src/editor/uib-element/panel.html

From 6daba6d88ad1125caf99410a86b8dde64cc0b88f Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Mon, 1 Jan 2024 12:28:35 +0000
Subject: [PATCH 66/78] Refactor to latest structure

---
 resources/uib-element.js | 542 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 542 insertions(+)
 create mode 100644 resources/uib-element.js

diff --git a/resources/uib-element.js b/resources/uib-element.js
new file mode 100644
index 00000000..3d22a278
--- /dev/null
+++ b/resources/uib-element.js
@@ -0,0 +1,542 @@
+/* eslint-disable strict, sonarjs/no-duplicate-string, sonarjs/no-duplicated-branches */
+
+// Isolate this code
+;(function () {
+    'use strict'
+
+    // NOTE: window.uibuilder is added - see `resources` folder
+
+    // RED._debug({topic: 'RED.settings', payload:RED.settings})
+
+    const uibuilder = window['uibuilder']
+    const log = uibuilder.log
+
+    /** Module name must match this nodes html file @constant {string} moduleName */
+    const moduleName = 'uib-element'
+
+    /** Node's label @constant {string} paletteCategory */
+    const nodeLabel = moduleName
+    /** Node's palette category @constant {string} paletteCategory */
+    const paletteCategory  = window['uibuilder'].paletteCategory
+    /** Node's background color @constant {string} paletteColor */
+    const paletteColor  = 'var(--uib-node-colour)' // '#E6E0F8'
+
+    /** Element Types definitions */
+    const elTypes = {
+        table: {
+            value: 'table',
+            label: 'Simple Table',
+            description: `
+                <p>
+                    A simple but accessible table. <b><a href="./uibuilder/docs/#/elements/tables" target="_blank">Docs</a></b>.
+                </p><p>
+                    Set the input data to an <i>Array of Objects<i>.
+                    Each array entry will be a new row. Each property of the first array entry
+                    will be used for the column names.
+                </p><p>
+                    An Object of Objects can also be used. In that case, the outer object's keys will be
+                    used as row names by adding a <code>data-row-name</code> attribute to each row.
+                </p><p>
+                    Each column in the table has 
+                    <code>data-col-index</code> and <code>data-col-name</code> attributes. 
+                </p>
+            `,
+            allowsParent: true,
+            allowsHead: true,
+            allowsPos: true,
+        },
+        sform: {
+            value: 'sform',
+            label: 'Simple Form',
+            description: `
+                <p>
+                    A simple but accessible Form with inputs and buttons. <b><a href="./uibuilder/docs/#/elements/forms" target="_blank">Docs</a></b>.
+                </p><p>
+                    Set the input data to an <i>Array of Objects<i>.
+                    Each array entry will be a new form input or button.
+                    An Object of Objects can also be used where the outer object is key'd by the ID of the entry.
+                </p><p>
+                    Currently supported properties in the inner objects are: 
+                    <code>type=</code>One of the input types listed below, 
+                    <code>id=</code>Unique HTML identifier, 
+                    <code>label=</code>Label text of the input field or button, 
+                    <code>required=</code>true/false whether a value is required,
+                    <code>value=</code>Optional starting value.
+                </p><p>
+                    Other properties can be provided. These only work with the appropriate input types and are otherwise ignored
+                </p><p>
+                    Available input types are:
+                    button, checkbox, color, date, detetime-local, email, hidden, month, number, password, radio, range, tel, text, time, url, week.
+                    See <a href="https://developer.mozilla.org/en-US/docs/Web/HTML/Element/Input" target="_blank">this explanation of the types and properties</a>.
+                </p><p>
+                    Some additional types will be made available in the future: select, combo, file, image, textarea. Auto-complete will also be added eventually.
+                </p><p>
+                    If a button is included, pressing the button will automatically send a message from the client back to Node-RED
+                    All of the form data will be included in that message in <code>msg._ui.form</code>.
+                </p>
+            `,
+            allowsParent: true,
+            allowsHead: true,
+            allowsPos: true,
+        },
+        ul: {
+            value: 'ul',
+            label: 'Unordered List (ul)',
+            description: `
+                <p>
+                    Outputs a simple, accessible, bullet list.  <b><a href="./uibuilder/docs/#/elements/lists" target="_blank">Docs</a></b>.
+                </p><p>
+                    Input data should be an array of strings.
+                    An object of key/values can also be used.
+                </p>
+            `,
+            allowsParent: true,
+            allowsHead: true,
+            allowsPos: true,
+        },
+        ol: {
+            value: 'ol',
+            label: 'Ordered List (ol)',
+            description: `
+                <p>
+                    Outputs a simple, accessible, numbered list. <b><a href="./uibuilder/docs/#/elements/lists" target="_blank">Docs</a></b>.
+                </p><p>
+                    Input data should be an array of strings.
+                    An object of key/values can also be used.
+                </p>
+            `,
+            allowsParent: true,
+            allowsHead: true,
+            allowsPos: true,
+        },
+        dl: {
+            value: 'dl',
+            label: 'Description List (dl)',
+            description: `
+                <p>
+                    Outputs a simple, accessible, description list. <b><a href="./uibuilder/docs/#/elements/lists" target="_blank">Docs</a></b>.
+                </p>
+                <p>
+                    Set the input data to be an Array of Array's. The outer array representing each row 
+                    and the inner array containing at least 2 string entries representing the term/description pair.
+                    Additional entries in the inner array are added as secondary descriptions (<code>dd</code> tags).
+                </p>
+                <p>
+                    You can also use an Array of Objects where each object is a simple key/value pair. Or even an Object of Objects.
+                    Inner structures are catenated into a string separated by commas.
+                </p>
+                <p>
+                    Each entry has a wrapping <code>&lt;div></code> tag containing a term (<code>dt</code>) 
+                    and one or more descriptions (<code>dd</code>).
+                </p>
+            `,
+            allowsParent: true,
+            allowsHead: true,
+            allowsPos: true,
+        },
+        article: {
+            value: 'article',
+            label: 'Text box',
+            description: `
+                <p>
+                    A simple box containing text with an optional heading. <b><a href="./uibuilder/docs/#/elements/other" target="_blank">Docs</a></b>.
+                </p>
+            `,
+            allowsParent: true,
+            allowsHead: true,
+            allowsPos: true,
+        },
+        html: {
+            value: 'html',
+            label: 'HTML',
+            description: /*html*/`
+                <p>
+                    Pass-through HTML from the input data. When sent to the uibuilder node, will be reproduced in your page(s).
+                    Output is wrapped in a <code>div</code> but the optional heading is ignored. 
+                    <b><a href="./uibuilder/docs/#/elements/html" target="_blank">Docs</a></b>.
+                </p>
+                <p>
+                    May be used with the Node-RED core <code>template</code> node.
+                </p>
+                <p>
+                    <b>NOTE</b>: Use with caution, no validity checking is currently done unless the optional
+                    <a href="./uibuilder/docs/#/client-docs/readme?id=_1-dompurify-sanitises-html-to-ensure-safety-and-security" target="_blank">DOMPurify library</a>
+                    is loaded.
+                </p>
+            `,
+            allowsParent: true,
+            allowsHead: false,
+            allowsPos: true,
+        },
+        markdown: {
+            value: 'markdown',
+            label: 'Markdown',
+            description: /*html*/`
+                <p>
+                    Pass-through Markdown from the input data. When sent to the uibuilder node, will be reproduced as HTML in your page(s).
+                    Output is wrapped in a <code>div</code> but the optional heading is ignored.
+                    <b><a href="./uibuilder/docs/#/elements/markdown" target="_blank">Docs</a></b>.
+                </p>
+                <p>
+                    Markdown will not be rendered as HTML unless the optional
+                    <a href="./uibuilder/docs/#/client-docs/readme?id=_2-markdown-it-converts-markdown-markup-into-html" target="_blank">Markdown-IT library</a>
+                    is loaded.
+                </p>
+                <p>
+                    May be used with the Node-RED core <code>template</code> node.
+                </p>
+                <p>
+                    <b>NOTE</b>: Use with caution, no validity checking is currently done unless the optional <a href="./uibuilder/docs/#/client-docs/readme?id=_1-dompurify-sanitises-html-to-ensure-safety-and-security" target="_blank">DOMPurify library</a> is loaded.
+                </p>
+            `,
+            allowsParent: true,
+            allowsHead: false,
+            allowsPos: true,
+        },
+        title: {
+            value: 'title',
+            label: 'Page Title',
+            description: `
+                <p>
+                    Updates the HTML page title and meta description.  <b><a href="./uibuilder/docs/#/elements/lists" target="_blank">Docs</a></b>.
+                </p>
+                <p>
+                    Amends the first <code>&lt;h1></code> tag on the page if it exists else adds one at the top of the page.
+                    There should only ever be one H1 tag on a page.
+                </p>
+                <p>
+                    The <b>Parent</b> and <b>HTML ID</b> are ignored in this case
+                </p>
+                <p>
+                    The input data must be a simple string.
+                </p>
+            `,
+            allowsParent: false,
+            allowsHead: false,
+            allowsPos: false,
+        },
+        li: {
+            value: 'li',
+            label: 'Add row to existing ordered or unordered list',
+            description: `
+                <p>
+                    Always add a new row to an existing list. (no replace). <b><a href="./uibuilder/docs/#/elements/lists" target="_blank">Docs</a></b>.
+                </p><p>
+                    Set the <b>Parent</b> to the id of the existing table.
+                </p><p>
+                    Set the input data to a string.
+                </p><p>
+                    Set the <b>Position</b> to "first", "last" or a number.
+                </p>
+            `,
+            allowsParent: true,
+            allowsHead: false,
+            allowsPos: true,
+        },
+        tr: {
+            value: 'tr',
+            label: 'Add row to existing table',
+            description: `
+                <p>
+                    Always add a new row to an existing table (no replace). <b><a href="./uibuilder/docs/#/elements/tables" target="_blank">Docs</a></b>.
+                </p><p>
+                    Set the <b>Parent</b> to the id of the existing table.
+                </p><p>
+                    Set the input data to an <i>Object<i>.
+                    The properties of the object must match the column definitions of the existing table.
+                </p><p>
+                    Set the <b>Position</b> to "first", "last" or a number.
+                </p>
+            `,
+            allowsParent: true,
+            allowsHead: false,
+            allowsPos: true,
+        },
+    }
+
+    // Standard typed input types for string fields
+    const stdStrTypes = [
+        'msg', 'flow', 'global',
+        'str', 'env', 'jsonata', 're',
+    ]
+    // Standard width for typed input fields
+    const tiWidth = '68.5%'
+
+    /** Prep for edit
+     * @param {*} node A node instance as seen from the Node-RED Editor
+     */
+    function onEditPrepare(node) {
+        // Initial config data
+        if (!node.confData) node.confData = {}
+        if (!node.parent || node.parent === '') $('#node-input-parent').val('body')
+        if (!node.position || node.position === '') {
+            $('#node-input-position').val('last')
+            node.position = 'last'
+        }
+
+        // initial checkbox states
+        if (!node.passthrough) node.passthrough = false
+
+        // Define element types for drop-down
+        $('#node-input-elementtype').typedInput({
+            types: [
+                {
+                    value: 'elementType',
+                    options: Object.values(elTypes),
+                }
+            ]
+        // On-change of element type, update the info panel
+        }).on('change', function() {
+            // @ts-ignore
+            if (elTypes[this.value].description === undefined) elTypes[this.value].description = 'No description available.'
+            // @ts-ignore
+            $('#type-info').html(elTypes[this.value].description)
+
+            // @ts-ignore
+            if ( elTypes[this.value].allowsParent === false ) $('#node-input-parent').prop('disabled', true)
+            else $('#node-input-parent').prop('disabled', false)
+
+            // @ts-ignore
+            if ( elTypes[this.value].allowsHead === false ) $('#node-input-heading').typedInput('disable')
+            else $('#node-input-heading').typedInput('enable')
+
+            // @ts-ignore
+            if ( elTypes[this.value].allowsPos === false ) $('#node-input-position').prop('disabled', true)
+            else $('#node-input-position').prop('disabled', false)
+
+            // TODO If type is heading - change parent to disabled (perhaps hide the input)
+        })
+
+        // parent selector typed input - https://nodered.org/docs/api/ui/typedInput/
+        $('#node-input-parent').typedInput({
+            types: stdStrTypes,
+            default: 'str',
+            typeField: $('#node-input-parentSourceType'),
+        }).typedInput('width', tiWidth)
+
+        // element id typed input
+        $('#node-input-elementid')
+            .typedInput({
+                types: stdStrTypes,
+                default: 'str',
+                typeField: $('#node-input-elementIdSourceType'),
+            }).typedInput('width', tiWidth)
+
+        // Set up optional heading input
+        $('#node-input-heading').typedInput({
+            types: stdStrTypes,
+            default: 'str',
+            typeField: $('#node-input-headingSourceType'),
+        }).typedInput('width', '56.5%')
+
+        // @ts-ignore core data typed input
+        $('#node-input-data').typedInput({
+            // types: stdStrTypes,
+            default: 'msg',
+            typeField: $('#node-input-dataSourceType'),
+        }).on('change', function(event, type, value) {
+            // console.log('change')
+            if ( type === 'msg' && !this.value ) {
+                $('#node-input-data').typedInput('value', 'payload')
+                // console.log('change 2')
+            }
+        } ).typedInput('width', tiWidth)
+
+        // position typed input
+        $('#node-input-position').typedInput({
+            types: stdStrTypes,
+            default: 'str',
+            typeField: $('#node-input-positionSourceType'),
+        }).typedInput('width', tiWidth)
+
+        // Ensure data value never blank
+        // $('#node-input-data').on('change', function(event, type, value) {
+        //     if ( !value ) {
+        //         if ( type === 'msg' ) $('#node-input-data').typedInput('value', 'payload')
+        //     }
+        // } )
+
+        // Make position of aria-labels dynamic to cursor
+        // $('#ti-edit-panel *[aria-label]').on('mousemove', function(event) {
+        //     document.documentElement.style.setProperty('--x', event.pageX )
+        //     document.documentElement.style.setProperty('--y', event.pageY )
+        //     document.documentElement.style.setProperty('--moveX', event.originalEvent.movementX )
+        //     document.documentElement.style.setProperty('--moveY', event.originalEvent.movementY )
+        //     console.log(event)
+        //     // document.documentElement.style.setProperty('--x', event.clientX)
+        //     // document.documentElement.style.setProperty('--y', event.clientY)
+        //     // $(this).prop('style', `top:${event.pageY}px;left:${event.pageX}`)
+        // })
+
+        // TODO reset unused conf props on type change?
+
+        // Delegated event handler for conf data - just marks things as changed
+        $('#el-tab-conf').on('change', '[data-uib-el-prop]', function() {
+            $(this).attr('data-changed', 'true')
+        })
+
+        const tabs = RED.tabs.create({
+            id: 'el-tabs',
+            // scrollable: true,
+            // collapsible: true,
+            onchange: function (tab) {
+                let templ, docFrag
+                $('#el-tabs-content').children().hide()
+                // Populate the element config tab based on type
+                if ( tab.id === 'el-tab-conf') {
+                    const type = $('#node-input-elementtype').val()
+                    switch (type) { // eslint-disable-line sonarjs/no-small-switch
+                        // case 'text': {
+                        //     templ = document.querySelector('#text-template')
+                        //     break
+                        // }
+
+                        // case 'table': {
+                        //     templ = document.querySelector('#table-template')
+                        //     break
+                        // }
+
+                        // case 'list':
+                        // case 'ol':
+                        // case 'ul':
+                        // case 'dl': {
+                        //     templ = document.querySelector('#list-template')
+                        //     break
+                        // }
+
+                        default: {
+                            // templ = document.createElement('template')
+                            templ = document.querySelector('#default-template')
+                            break
+                        }
+                    }
+                    // @ts-ignore - Clone the template and apply to the UI
+                    docFrag = templ.content.cloneNode(true)
+                    $('#el-tab-conf').append(docFrag)
+                    // Get any required functions for this type from the template (append runs the script tags immediately)
+                    const confFns = window['uibElementConfigFns']
+                    // console.log('confFns', confFns.type, confFns)
+                    // Re-constitute node.conf properties and values to the conf tab
+                    // TODO Deal with select tags
+                    Object.keys(node.confData).forEach( conf => {
+                        $(`#conf-${type}-${conf}`).val(node.confData[conf])
+                    })
+                } else {
+                    $('#el-tab-conf').empty()
+                }
+                $('#' + tab.id).show()
+            }
+        })
+        tabs.addTab({
+            id: 'el-tab-main',
+            label: 'Main'
+        })
+        tabs.addTab({
+            id: 'el-tab-conf',
+            label: 'Element Config'
+        })
+
+        uibuilder.doTooltips('#ti-edit-panel') // Do this at the end
+    } // ----- end of onEditPrepare() ----- //
+
+    /** Prep for save
+     * @param {*} node A node instance as seen from the Node-RED Editor
+     */
+    function onEditSave(node) {
+        $('[data-changed="true"]').each(function(i) {
+            node.confData[this.dataset.prop] = $(this).val()
+            node.changed = true
+            RED.nodes.dirty(true)
+        })
+    } // ----- end of onEditPrepare() ----- //
+
+    //#region ---- Validation functions ---- //
+
+    /** Validate a typed input as a string
+     * Must not be JSON. Can be a number only if allowNum=true. Can be an empty string only if allowBlank=true
+     * Sets typedInput border to red if not valid since custom validation not available on std typedInput types
+     * @param {string} value Input value
+     * @param {string} inpName Input field name
+     * @param {boolean} allowBlank true=allow blank string. Default=true
+     * @param {boolean} allowNum true=allow numeric input. Default=false
+     * @returns {boolean} True if valid
+     */
+    function tiValidateOptString(value, inpName, allowBlank = true, allowNum = false) {
+        let isValid = true
+        let f
+        try {
+            f = value.slice(0, 1)
+        } catch (e) {}
+
+        if (allowBlank === false && value === '') {
+            isValid = false
+            // console.log({ name: inpName, why: 'Blank failed', value: value, allowBlank: allowBlank })
+        }
+
+        if ( allowNum === false && (value !== '' && !isNaN(Number(value))) ) {
+            isValid = false
+            // console.log({ name: inpName, why: 'Num failed', value: value, allowNum: allowNum })
+        }
+
+        if ( f === '{' || f === '[' ) isValid = false
+
+        $(`#node-input-${inpName} + .red-ui-typedInput-container`).css('border-color', isValid ? 'var(--red-ui-form-input-border-color)' : 'red')
+        return isValid
+    }
+
+    //#endregion ---- Validation functions ---- //
+
+    RED.nodes.registerType(moduleName, {
+        defaults: {
+            name: { value: '' },
+            topic: { value: '' },
+
+            elementtype: { value: 'table', required: true },
+
+            parent: { value: 'body', validate: (v) => tiValidateOptString(v, 'parent', false, false) },
+            parentSource: { value: '' }, // ! only here to allow for migration to parentSource field - remove after go-live of v6.1
+            parentSourceType: { value: 'str' },
+
+            elementid: { value: '', validate: (v) => tiValidateOptString(v, 'elementid', true, false) },
+            elementId: { value: '' }, // ! TODO remove after go-live 6.1
+            elementIdSourceType: { value: 'str' },
+
+            heading: { value: '', validate: (v) => tiValidateOptString(v, 'heading', true, false) },
+            headingSourceType: { value: 'str' },
+            headingLevel: { value: 'h2', required: true },
+
+            data: { value: 'payload' },
+            dataSourceType: { value: 'msg' },
+
+            position: { value: 'last', validate: (v) => tiValidateOptString(v, 'position', false, true) },
+            positionSourceType: { value: 'str' },
+
+            passthrough: { value: false },
+
+            // Configuration data specific to the chosen type
+            confData: { value: {} },
+        },
+        align: 'left',
+        inputs: 1,
+        inputLabels: '',
+        outputs: 1,
+        outputLabels: ['uibuilder dynamic UI configuration'],
+        icon: 'pencilBoxMultipleWhite.svg',
+        label: function () {
+            return this.name || `[${this.elementtype}] ${this.parent ? `${this.parent}.` : ''}${this.elementid || moduleName}`
+        },
+        paletteLabel: moduleName,
+        category: uibuilder.paletteCategory,
+        color: 'var(--uib-node-colour)', // '#E6E0F8'
+
+        /** Prepares the Editor panel */
+        oneditprepare: function () { onEditPrepare(this) },
+
+        /** Runs before save (Actually when Done button pressed) - oneditsave */
+        oneditsave: function () { onEditSave(this) },
+
+        /** Runs before cancel - oneditcancel */
+        /** Handle window resizing for the editor - oneditresize */
+        /** Show notification warning before allowing delete - oneditdelete */
+    }) // ---- End of registerType() ---- //
+}())

From b3814af774ff82216894e6ae9ad443fb756e217b Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Mon, 1 Jan 2024 12:30:11 +0000
Subject: [PATCH 67/78] Ensure node is invalid if url wrong. Blank on
 import/paste

---
 resources/uib-save.js | 63 +++++++++++++++++++++++++++----------------
 1 file changed, 40 insertions(+), 23 deletions(-)

diff --git a/resources/uib-save.js b/resources/uib-save.js
index 7f63255a..b4bdd916 100644
--- a/resources/uib-save.js
+++ b/resources/uib-save.js
@@ -15,13 +15,14 @@
     const moduleName = 'uib-save'
 
     /** Copy of deployed uibuilder node instances populated by getUrls() */
-    let uibInstances
+    // let uibInstances
+    const uibInstances = uibuilder.editorUibInstances
 
     /** Get all of the currently deployed uibuilder URL's
      * NOTE that the uibuilder.urlsByNodeId cannot be used as that includes disabled nodes/flows
      */
     function getUrls() {
-        uibInstances = uibuilder.getDeployedUrls()
+        // uibInstances = uibuilder.getDeployedUrls()
         Object.keys(uibInstances).forEach( (key, i, arr) => {
             $('#node-input-url').append($('<option>', {
                 value: uibInstances[key],
@@ -43,26 +44,6 @@
         // Deal with the url
         getUrls()
 
-        if ( node.uibId in uibInstances ) {
-            // console.log( 'uibuilder node ID is known', node.url, node.uibId)
-            // We know the ID, always look up the latest name
-            const chkUrl = uibInstances[node.uibId]
-            if (chkUrl !== node.url) { // The url for this node changed so force a re-deploy
-                RED.nodes.dirty(true)
-                node.changed = true
-            }
-            node.url = uibInstances[node.uibId]
-        } else if ( Object.values(uibInstances).includes(node.url) ) {
-            // console.log( 'We didnt know the id but we found the url', node.url, node.uibId, Object.keys(uibInstances)[Object.values(uibInstances).indexOf(node.url)])
-            // We didn't know the ID but we know the last url so set the ID - always force a redeploy in this case
-            node.uibId = uibInstances[Object.keys(uibInstances)[Object.values(uibInstances).indexOf(node.url)]]
-            RED.nodes.dirty(true)
-            node.changed = true
-        } else {
-            // console.log( 'Neither id nor url found', node.url, node.uibId)
-            node.valid = false
-        }
-
         $('#node-input-url')
             .on('change', function() {
                 node.uibId = Object.keys(uibInstances)[Object.values(uibInstances).indexOf(this.value)]
@@ -98,10 +79,46 @@
         uibuilder.doTooltips('#ti-edit-panel') // Do this at the end
     } // ----- end of onEditPrepare() ----- //
 
+    /** Validation function for the URL field - Also updates uibId or url if needed - incl blank on import
+     * @param {*} v Value
+     * @param {undefined} opt Enables none-bool returns
+     * @returns {boolean|string} TRUE if the URL is valid
+     */
+    function chkUrl(v, opt) {
+        this.valid = true
+        // @ts-ignore If a new import or paste, blank the url and uibId
+        if (this.addType && this.addType === 'paste/import') {
+            this.url = ''
+            this.uibId = ''
+            this.valid = false
+        } else if ( this.uibId && this.uibId in uibInstances ) {
+            // console.log( 'uibuilder node ID is known', this.url, this.uibId)
+            // We know the ID, always look up the latest name
+            const chkUrl = uibInstances[this.uibId]
+            if (chkUrl !== this.url) { // The url for this node changed so force a re-deploy
+                RED.this.dirty(true)
+                this.changed = true
+            }
+            this.url = uibInstances[this.uibId]
+        } else if ( Object.values(uibInstances).includes(this.url) ) {
+            // console.log( 'We didn't know the id but we found the url', this.url, this.uibId, Object.keys(uibInstances)[Object.values(uibInstances).indexOf(this.url)])
+            // We didn't know the ID but we know the last url so set the ID - always force a redeploy in this case
+            this.uibId = uibInstances[Object.keys(uibInstances)[Object.values(uibInstances).indexOf(this.url)]]
+            RED.nodes.dirty(true)
+            this.changed = true
+        } else {
+            // console.log( 'Neither id nor url found', this.url, this.uibId)
+            this.valid = false
+            RED.nodes.dirty(true)
+            this.changed = true
+        }
+        return this.valid !== false
+    }
+
     // @ts-ignore
     RED.nodes.registerType(moduleName, {
         defaults: {
-            url: { value: '', required: true },
+            url: { value: '', required: true, validate: chkUrl },
             uibId: { value: '' }, // ID of selected uibuilder instance
             folder: { value: 'src', },
             fname: { value: '', },

From 488f731878f4e641c6cec5a2e0e84baf7bbda1fd Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Mon, 1 Jan 2024 12:30:35 +0000
Subject: [PATCH 68/78] Bump release version to 6.8

---
 gulpfile.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gulpfile.js b/gulpfile.js
index e1629ac8..fe84c659 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -71,7 +71,7 @@ const stdio = 'inherit'
 // @ts-ignore Find the module version in the package.json
 const { version } = JSON.parse(fs.readFileSync('package.json'))
 // Desired release version
-const release = '6.7.0'
+const release = '6.8.0'
 // Wanted node.js version - used for ESBUILD
 const nodeVersion = 'node14.14'
 

From 8dffbb5a99c12104d172e0be5c210d9ceeb63fdb Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Mon, 1 Jan 2024 12:31:02 +0000
Subject: [PATCH 69/78] Restructure roadmap into multiple files - pt1

---
 docs/roadmap/Maybe.md  |   4 +-
 docs/roadmap/readme.md | 224 ++++++++++++++++++++++++++++++-----------
 2 files changed, 168 insertions(+), 60 deletions(-)

diff --git a/docs/roadmap/Maybe.md b/docs/roadmap/Maybe.md
index a2302a06..59b811e0 100644
--- a/docs/roadmap/Maybe.md
+++ b/docs/roadmap/Maybe.md
@@ -1,6 +1,8 @@
 ---
 created: 2023-12-30 20:23:50
-updated: 2023-12-30 20:32:27
+updated: 2023-12-31 14:03:25
+title: Possible Future Features
+author: Julian Knight (Totally Information)
 ---
 
 These are some thoughts about possible future direction. They need further thought and design.
diff --git a/docs/roadmap/readme.md b/docs/roadmap/readme.md
index 63d14af4..7fff097b 100644
--- a/docs/roadmap/readme.md
+++ b/docs/roadmap/readme.md
@@ -3,7 +3,7 @@ title: uibuilder Roadmap
 description: |
   This page outlines the future direction of uibuilder. Including specific things that will almost certainly happen as well as more speculative ideas.
 created: 2022-02-01 11:15:27
-updated: 2023-12-30 20:27:21
+updated: 2023-12-31 15:17:45
 ---
 
 Is there something in this list you would like to see prioritised? Is there something you could help with? Please get in touch via the [Node-RED forum](https://discourse.nodered.org/). Alternatively, you can start a [discussion on GitHub](https://github.com/TotallyInformation/node-red-contrib-uibuilder/discussions) or [raise a GitHub issue](https://github.com/TotallyInformation/node-red-contrib-uibuilder/issues). Please note that I no longer have the time to monitor the #uibuilder channel in the Node-RED slack.
@@ -13,31 +13,106 @@ For more information about the future of UIBUILDER, please see the [Futures page
 
 ## In Progress
 
-To see what is currently being developed, please look at the "Unreleased" section of the [Changelog](changelog)
+To see what is currently being developed, please look at the "Unreleased" section of the [Changelog](changelog) for the latest branch. Anything else in this section is work-in-progress.
+
+### Comms
+* Socket.IO rooms. [ref](https://socket.io/docs/v4/rooms/) - Rooms can be used to filter messages for specific destinations (e.g. client or page id) or to create client-to-client comms.
+  * Need a way to join rooms from Node-RED
+  * socket.js
+    * [x] Auto-join `clientId:xxxxxxx` & `pageName:xxxxxxx` rooms
+    * [x] socket.on uib-room-join/-leave-send
+    * [ ] Change send functions to use rooms where clientId/pageName is specified in `msg._uib`
+    * [ ] `socket.on('uib-room-send', ...)` Add option to also send a uibuilder msg.
+    * [ ] Incorporate `msg._uib.roomId` for sending to custom rooms
+    * [ ] ? Allow sending to different uib namespaces? would likely need an option flag for security?
+    * [ ] Allow global as well as NS rooms - allow sending between different uib connected clients. 
+          [ref](https://socket.io/docs/v4/socket-io-protocol/#introduction) - `this.io.of('/').emit('uibuilder:global', 'Hello from the server. NS: "/"')`
+    * [ ] Remove console.log from addNs
+  * client
+    * [x] joinRoom, leaveRoom, sendRoom - allows clients to join/leave/message any arbitrary room
+    * [x] Add additional listener for the default (global) namespace
+    * [ ] Add `globalSend` function
+    * [ ] Add listener when joining a room, remove when leaving
+    * [ ] Document new managed var: `globalMsg`.
+
+### FE Router
+
+* add `rotate` method to auto-rotate through routes. Needs ms and stop/start args.
+* Add 1st show marker to route change to allow client to ask for cache update
+* Update example
+* Make this.config.routes a SET to prevent duplicates. Or possibly an object. Needs some code changes.
+* Methods needed:
+  * Delete route - need to update routeIds
+  * Update/reload route
+  * shutdown - that removes all elements
+  * delete templates - unloads a list of (or all) templates
+  * reload templates - to facilitate updates of a list of (or all) templates
+  * auto-rotation of routes - uib..navigate(nextRoute)
+  * next/prev route navigation
+* Additional options:
+  * Add pre-load option early load of all routes instead of default lazy-load.
+  * unload templates after they are added to the route container. Only if hide=true. `unload: true`
+  * Maybe: options to auto-load js and css files with the same name as a template file.
+
+### Core node
+
+* Add manual entry field to editor config for a URL scheme to open the instanceRoot folder in an editor new window. Pre-fill with vscode entry for localhost. Partially fill with vscode-remote otherwise (or maybe have a button).
+
+### All nodes
+
+* Incorporate ideas from: https://www.htmhell.dev/adventcalendar/2023/2/
+
+* More flexible low-code class attribute handling.
+  * In ui.js
+    * [ ] Update the low-code schema's with add/remove/replace `classes` property
+    * Update all fns to use the extra property
+    
+  * In nodes - update to allow using array of classes and to have add/remove class arrays
+    * In uib-update
+    
+    * In uib-element
+    
+    * In uib-tag
+    
+      
+
+### Node Edit Panel Refactoring
+
+| Refactor / Node:              | uibuilder             | uib-cache | uib-element         | uib-html | uib-save | uib-sender | uib-tag | uib-update | *uib-uplot*                         |
+| ----------------------------- | --------------------- | --------- | ------------------- | -------- | -------- | ---------- | ------- | ---------- | ----------------------------------- |
+| Ref ti-common.js/css          | ✔️                     | ✔️         | ✔️                   |          | ✔️        |            | ✔️       | ✔️          |                                     |
+| Mv src editor.js to resources | ✔️                     | ✔️         | ✔️                   |          | ✔️        |            | ✔️       | ✔️          |                                     |
+| jQ Tooltips                   | ✔️                     | ✔️         | ✔️                   |          | ✔️        |            | ✔️       | ✔️          |                                     |
+| rename template.html          | ✔️                     | ✔️         | ✔️                   |          | ✔️        | ✔️          |         | ✔️          |                                     |
+| jQ TI class not id            | ✔️                     | ✔️         | ✔️                   |          | ✔️        |            |         |            |                                     |
+| Notes                         | class="ti-edit-panel" |           | mv combobox styles? |          |          |            |         |            | check this for other needed updates |
+
+Vars moved to ti-common (replace): node.urlPrefix, node.nodeRoot, paletteCategory, typedInputWidth, localHost, packages, editorInstances[urlsByNodeId].
+
+### Node Runtime Refactoring
+
+| Refactor / Node:             | uibuilder | uib-cache | uib-element | uib-html | uib-save | uib-sender | uib-tag | uib-update | *uib-uplot*                         |
+| ---------------------------- | --------- | --------- | ----------- | -------- | -------- | ---------- | ------- | ---------- | ----------------------------------- |
+| getSource                    |           |           | ✔️           |          |          |            | ✔️       |            |                                     |
+| Std process for typed inputs |           |           |             |          |          |            |         |            |                                     |
+| fs to std lib                |           |           |             |          |          |            |         |            |                                     |
+| buildUi to std lib           | --        | --        |             |          | --       | --         |         |            | ??                                  |
+| Notes                        |           |           |             |          |          |            |         |            | check this for other needed updates |
 
 ---
 
 ## Next - these are things that need to be done
 
+### Possible New Nodes
+
+* `uib-template` -  New node to take a msg._ui template input and update parts of it belore sending (e.g. parent, id, ...). `uib-override` or `uib-config`? [Ref](https://discourse.nodered.org/t/an-idea-for-third-party-ui-in-ui-builder/83196/4?u=totallyinformation).
+* `uib-event` - Outputs uibuilder standard messages (or maybe both std and control) but is separate from the uibuilder instance node and can be filtered by user, client, page as well as the instance.
+
 ### General changes
 
 * Complete the move of the zero- to low-code translations into the `libs/lowcode.js` library. Move runtime `buildUi` to common library.
-
-  Consider putting each element in its own source js file and using a build process. This will allow their use when converting to web components. Add a master js with all components but allow each to be individually loaded.
+    Consider putting each element in its own source js file and using a build process. This will allow their use when converting to web components. Add a master js with all components but allow each to be individually loaded.
 * Complete the move of all server filing system handling into the `libs/fs.js` library. And remove dependency on `fs-extra`.
-* Node Edit Panel Refactoring:
-
-  | Refactor / Node:              | uibuilder | uib-cache | uib-element | uib-html | uib-save | uib-sender | uib-tag | uib-update | *uib-uplot*                       |
-  | ----------------------------- | --------- | --------- | ----------- | -------- | -------- | ---------- | ------- | ---------- | ----------------------------------- |
-  | Ref ti-common.js/css          | ✔️      | ✔️      |             |          | ✔️     |            | ✔️    | ✔️       |                                     |
-  | Mv src editor.js to resources | ✔️      | ✔️      |             |          | ✔️     |            | ✔️    | ✔️       |                                     |
-  | jQ Tooltips                   | ✔️      | ✔️      |             |          | ✔️     |            | ✔️    | ✔️       |                                     |
-  | rename template.html          |           | ✔️      |             |          | ✔️     | ✔️       |         | ✔️       |                                     |
-  | jQ Tt class not id            | ✔️      |           |             |          |          |            |         |            |                                     |
-  | getSource                     |           |           | ✔️        |          |          |            | ✔️    |            |                                     |
-  | Notes                         |           |           |             |          |          |            |         |            | check this for other needed updates |
-
-  Vars moved to ti-common (replace): node.urlPrefix, node.nodeRoot, paletteCategory, typedInputWidth, localHost, packages, editorInstances[urlsByNodeId]
 * [Issue #94](https://github.com/TotallyInformation/node-red-contrib-uibuilder/issues/94) - Detect when Node-RED switches projects and see if the uibRoot folder can be dynamically changed.
 * Allow control of browser html cache from Node-RED. Add an auto-restore on load option. (? Add send updates back to Node-RED option - control msg ?)
 * Editor: Add panel of links to all instances of uibuilder.
@@ -46,10 +121,8 @@ To see what is currently being developed, please look at the "Unreleased" sectio
   * https://github.com/TotallyInformation/nr-uibuilder-uplot
   * probably chart
   * How to pass data through?
-* New node: `uib-template` -  New node to take a msg._ui template input and update parts of it belore sending (e.g. parent, id, ...). `uib-override` or `uib-config`? [Ref](https://discourse.nodered.org/t/an-idea-for-third-party-ui-in-ui-builder/83196/4?u=totallyinformation).
-* New node: `uib-event` - Outputs uibuilder standard messages (or maybe both std and control) but is separate from the uibuilder instance node and can be filtered by user, client, page as well as the instance.
 
-### Updates to `uibuilder` node
+### Node: `uibuilder`
 
 * **FIX NEEDED** Loading template - if it fails due to a missing dependency, the template isn't loaded but the Template shows the new one. Need to revert the name if loading fails.
 * Allow file uploads
@@ -122,7 +195,7 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 * Add template description to display.
 * Add dependency version handling to templates (e.g. vue 2/3)
 * Allow templates to provide example flows via a `uibuilder` Node-RED library plugin - will library update though?
-     
+  
     Check for examples folder, if present load all *.json files to library.
     [saveLibraryEntry](https://nodered.org/docs/api/storage/methods/#storagesavelibraryentrytypenamemetabody)
     ([ref1](https://discourse.nodered.org/t/red-library-without-red-editor/61247), [ref2](https://nodered.org/docs/api/library/), [ref3](https://github.com/node-red/node-red-library-file-store/blob/main/index.js))
@@ -205,7 +278,7 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 
   * ~~Add 4th cookie to record the Node-RED web URL since uibuilder can now use a different server, it is helpful if the front-end knows the location of Node-RED itself.~~ Can't even give the port since the client access might be totally different to the server (e.g. behind a proxy).
 
-### Extensions to `uib-cache` node
+### Node: `uib-cache`
 
 * CHANGE CONTEXT VAR HANDLING TO DEAL WITH ASYNC
 * Add DELAY and EXPIRY features.
@@ -217,7 +290,7 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 * Add empty cache button.
 * Think about impact of a cache clear (affects all connected clients)
 
-### Extensions to the `uib-element` node
+### Node: `uib-element`
 
 * Add width setting
 * Add new element: Layout
@@ -345,26 +418,27 @@ To see what is currently being developed, please look at the "Unreleased" sectio
   * Pill list, scrollable search - https://www.w3.org/WAI/ARIA/apg/patterns/grid/examples/layout-grids/
 * ??? How to allow EXTERNAL element definitions ??? e.g. Someone else's contributed package.
 
-### Extensions to the `uib-html` node
+### Node: `uib-html`
 
 * Add option to remove the page tags, leaving just the document body fragment.
 * Add options for DOMpurify and Markdown-IT
 * Consider adding an HTML editor for the template?
 
-### `uib-save` node
+### Node: `uib-save`
 
 * Allow msg overrides of input fields
+* Allow URL to be driven by msg or context (just add new options to select, don't bother with typed input)
 
-### `uib-sender` node
+### Node: `uib-sender`
 
 * CHANGE CONTEXT VAR HANDLING TO DEAL WITH ASYNC
 
-### `uib-tag` node
+### Node: `uib-tag`
 
 * Add input to allow restriction by pageName/clientId/tabId. `_ui.pageName`, `_ui.clientId`, and/or `_ui.tabId`
 * Add individual class handling to _ui processing. [ref](https://developer.mozilla.org/en-US/docs/Web/API/Element/classList).
 
-### `uib-update` node
+### Node: `uib-update`
 
 * Add input to allow restriction by pageName/clientId/tabId. `_ui.pageName`, `_ui.clientId`, and/or `_ui.tabId`
 * Add individual class handling to _ui processing. [ref](https://developer.mozilla.org/en-US/docs/Web/API/Element/classList).
@@ -373,27 +447,47 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 * ?? Consider if worth adding a way to update a front-end javascript variable directly ??
 * New type option "Template" - Replaces the selected element with a template clone. Then applies attribs/slot if required. [Ref](https://developer.mozilla.org/en-US/docs/web/html/element/template)
 
-### Shared Editor Code Library `ti-common.js` and `ti-common.css`
+### Library: `ti-common.js`/`ti-common.css` (Shared Editor Code)
 
 * Add `isNew` flag that indicates if a node instance has not yet been deployed. (e.g. new paste or import or drag from palatte)
 
-### client Library
+### Library: FE Client
+
+* [ ] [**STARTED**] Ability to visually show all uibuilder managed variables.
+
+* [ ] [**STARTED**] Add individual class handling to _ui processing. [ref](https://developer.mozilla.org/en-US/docs/Web/API/Element/classList).
+
+* [ ] [**STARTED**]  Add ability to save the current DOM.
+
+  * [ ] [**STARTED**] To local storage - with option to reload on reload
+  * [ ] [**STARTED**] (manual request is done) Send to Node-RED as a control msg (whole HTML or from a CSS Selector)
+
+  
+
+* ??? `uib.setAttr(selector, attr, val)`?  - quick way to set an attribute on an element.
+
+* Consider special variable `managedTags`? where each entry update will automatically update the matching element ID and if the element doesn't yet exist, will watch for it and update as soon as it is added. E.g. setting value on `uib.managedTags.mytag` would update `<xxxx id="mytag"></xxxx>`. ?? Just the slot content? Or attributes as well (perhaps making the value an object).
 
-* [**STARTED**] Ability to visually show all uibuilder managed variables.
 * Add client `tag()` function that creates a new HTML element similar to the Node-RED side `uib-tag` node. (See https://redom.js.org for refs)
+
 * A way to show and change uib-brand variables visually?
-* Add extra optional flag to set() to allow saving to localStorage - where set, auto-load on (re)load
-* Add individual class handling to _ui processing. [ref](https://developer.mozilla.org/en-US/docs/Web/API/Element/classList).
+
 * Add Node-RED command to find out if a front-end library is installed.
+
 * Add small button to showStatus output to allow user to turn off the display.
+
 * Make sure that all watch/monitor fns emit custom events
+
 * msgShow - add a message counter (optional?)
+
 * Forms (eventSend):
 
   * Allow for multi-select sending array of selected options.
   * Allow for multi-select pre-selecting array of options.
   * Allow for "selected" `true` on option entries.
+  
 * Get _uib/_ui notify features to use Notification API if available
+
 * *New Functions* (all to be callable from Node-RED):
 
   * [ ] `uibuilder.cacheSend()` and `uibuilder.cacheClear()` - send ctrl msgs back to node-red - reinstate in uib-cache fn now we've removed extra ctrl send.
@@ -401,6 +495,7 @@ To see what is currently being developed, please look at the "Unreleased" sectio
   * [ ] `uibuilder.socketReconnect()` Add manual socket.io reconnection function so it can be incorporated in disconnected UI notifications.
   * [ ] Expand/collapse all details, expand previous/next (with/without collapsing others) buttons. [ref](https://codereview.stackexchange.com/questions/192138/buttons-that-expand-or-collapse-all-the-details-within-the-document)
   * [ ] **HARD - may be impossible?** `uibuilder.convertToUI(cssSelector)` - convert part/all of the DOM to `_ui` json structure. [ref](https://stackoverflow.com/questions/2303713/how-to-serialize-dom-node-to-json-even-if-there-are-circular-references)
+  
 * Control from Node-RED. Functions to implement:
 
   * [ ] watchDom(startStop), uiWatch(cssSelector) [add custom event outputs]
@@ -411,40 +506,41 @@ To see what is currently being developed, please look at the "Unreleased" sectio
   * [ ] Expand/collapse all details, expand previous/next (with/without collapsing others)
 
   * Add `info` outputs to commands. Allow the fns that commands call to have auto-send & info.
+  
 * Allow file uploads
+
 * Add a `jsonImport` option to the _ui `load` method. The `jsonImport` property being an object where the keys are variable names to load to and the values are the URL's to load the JSON from.
+
 * Add treeview formatting to syntaxHighlight. [ref](https://iamkate.com/code/tree-views/).
+
 * Consider watching for a url change (e.g. from vue router) and send a ctrl msg if not sending a new connection (e.g. from an actual page change). `url` variable already added in preparation.
+
 * Option for a pop-over notification to manually reconnect the websocket.
+
 * Investigate use of [PerformanceNavigationTiming.type](https://developer.mozilla.org/en-US/docs/Web/API/PerformanceNavigationTiming/type) to detect page load type and inform uibuilder on initial message.
-* _started_ Add ability to save the current DOM.
-
-  * _started_ To local storage - with option to reload on reload
-  * _started_ (manual request is done) Send to Node-RED as a control msg (whole HTML or from a CSS Selector)
-* _UI - improvements to the config-/data-driven UI creation features
-
-  * **Started** Add optional page filter to _ui - if `msg._ui.pageName` not matching current page, don't process - *needs list and wildcard capabilities*.
-  * Content editor capability - to set editable content blocks. [ref 1](https://editorjs.io/)
-  * Add handling for `_ui.components[n].slots` where slots is an object of named slots with the special
-    name of `default` for the default slot (default must be handled first since it overwrites all existing slots)
-  * Add check to uibuilder.module.js to prevent adding of multiple entries with same ID
-  * Allow adding to more locations: next/previous sibling
-  * Add click coordinates to return msgs where appropriate. See https://discourse.nodered.org/t/contextmenu-location/22780/51
+
 * Extend logging functions:
 
   * Report socket.io setup/config issues back to Node-RED using `beaconLog(txtToSend, logLevel)`.
-  * _started_ Add showLog function similar to showMsg - showing log output to the UI instead of the console.
+  * [ ] [**STARTED**]  Add showLog function similar to showMsg - showing log output to the UI instead of the console.
   * Add option to send log events back to node-red via the `navigator.sendBeacon()` method.
 
     * `uibuilder` node will output control msg of type `Client Log` when client sends a beacon.
     * Make optional via flag in Editor with start msg enabling/disabling in client.
     * ? window and document events - make optional via uibuilder fe command.
+  
 * Add a standard tab handler fn to handle tab changes. Are DOM selectors dynamic (do they update with new DOM elements)? If not, will need to include a DOM observer.
+
 * Extend clearHtmlCache, restoreHtmlFromCache, saveHtmlCache fns to allow *sessionCache*.
+
 * Add a [resizeObserver](https://developer.mozilla.org/en-US/docs/Web/API/ResizeObserver) to report resize events back to Node-RED as a control msg.
+
 * Look at [`window.prompt`](https://developer.mozilla.org/en-US/docs/Web/API/Window/prompt), [`window.confirm`](https://developer.mozilla.org/en-US/docs/Web/API/Window/confirm) and [`<dialog>`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/dialog) - should _ui implement these?
+
 * Get better control over what control messages can be sent. Centralise the list of control messages in use.
+
 * Add functions for manipulating SVG's.
+
 * Allow for PWA use:
 
   * Check for OFFLINE use and suppress transport errors
@@ -452,26 +548,41 @@ To see what is currently being developed, please look at the "Unreleased" sectio
   * Auto-generate manifest and sw.js - need icon and to set names/urls/etc
   * https://learn.microsoft.com/en-us/microsoft-edge/progressive-web-apps-chromium/how-to/web-app-manifests
   * Allow push API interface as well as websocket. https://developer.mozilla.org/en-US/docs/Web/API/Push_API
+  
 * Accessibility
 
   * Need to add a dismiss button to toasts
   * Check all auto-added elements for accessibility
   * Add count of current errors to title
 
-### `ui.js` library
+### Library: `ui.js`
 
-* uib-element/client - allow loading of data to the ROOT to allow for full HTML replacement
+* [ ] uib-element/client - allow loading of data to the ROOT to allow for full HTML replacement
+* [ ] [**Started**] Add optional page filter to _ui - if `msg._ui.pageName` not matching current page, don't process - *needs list and wildcard capabilities*.
+* Filter on `msg._ui.routeId` (If using router).
+* Content editor capability - to set editable content blocks. [ref 1](https://editorjs.io/)
+* Add handling for `_ui.components[n].slots` where slots is an object of named slots with the special
+  name of `default` for the default slot (default must be handled first since it overwrites all existing slots)
+* Add check to uibuilder.module.js to prevent adding of multiple entries with same ID
+* Allow adding to more locations: next/previous sibling
+* Add click coordinates to return msgs where appropriate. See https://discourse.nodered.org/t/contextmenu-location/22780/51
+
+### Library: `uibrouter.js` (FE router)
+
+* Add option to auto scroll to a css selector on route change.
 
-### `uib-var` web component
+### Web Component: `uib-var` (internal)
 
-* Allow no var attrib but instead allow ID to create a new managed variable
+* Allow no var attrib but instead allow ID to create a new managed variable.
 * Add uib.var function as a test of using a proxy to manage vars and work with the uib-var component.
 
-### `uibrouter.js` FE router
+### Possible New Web Components
 
-* Add option to auto scroll to a css selector on route change.
+* `<uib-loop>`. [Ref](https://discourse.nodered.org/t/ui/82818/33?u=totallyinformation) - A web component that takes a variable to loop over. Slot content being used as a template and replicated. Need a way to represent loop properties in the template.
+* lamp - [convert from vue version](https://github.com/TotallyInformation/uibuilder-vuejs-component-extras)
+* gauge - [convert from vue version](https://github.com/TotallyInformation/uibuilder-vuejs-component-extras).
 
-### `uib-brand.css`
+### Styles: `uib-brand.css`
 
 * Forms:
 
@@ -564,11 +675,6 @@ To see what is currently being developed, please look at the "Unreleased" sectio
 
 * Consider adding a virtual file system to enable uibuilder to work with FlowForge. [ref](https://discourse.nodered.org/t/ui-builder-and-flowforge-device-agent/79373/7)
 
-### Potential Web Components
-
-* lamp - [convert from vue version](https://github.com/TotallyInformation/uibuilder-vuejs-component-extras)
-* gauge - [convert from vue version](https://github.com/TotallyInformation/uibuilder-vuejs-component-extras).
-
 ### Ideas
 
 * *STARTED* How to add FILTERs (text formaters) to `<uib-var>`? They should be a collection of JS functions that are auto-given the var as a value, add any other args and return a formatted version of the value. Filters should be chainable. Reflect.apply(target, thisArgument, argumentsList)

From 41696e623b7de19e0fc6bdfc4fe21d97f2bfbfee Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Mon, 1 Jan 2024 12:33:56 +0000
Subject: [PATCH 70/78] Updates

---
 CHANGELOG.md | 95 ++++++++++++----------------------------------------
 1 file changed, 21 insertions(+), 74 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 60d83621..aac4015e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,11 +6,11 @@ typora-root-url: docs/images
 
 Please see the documentation for archived changelogs - a new archive is produced for each major version. Check the [roadmap](./docs/roadmap.md) for future developments.
 
-## To Fix
+## Issues
 
-* `uib-save` import - initial deployment does not connect to node - need to clear the entry & mark as invalid. Also, no url = invalid
-
-* To reproduce: [ref](https://discourse.nodered.org/t/uibuilder-new-release-v6-7-new-front-end-router-improvements-to-uib-html-uib-save-and-more/83106/4)
+* uibuilder node - Issues if user deploys without entering a url
+  
+  To reproduce: [ref](https://discourse.nodered.org/t/uibuilder-new-release-v6-7-new-front-end-router-improvements-to-uib-html-uib-save-and-more/83106/4)
 
   Pull a uibuilder node in a flow.
   Press Deploy.
@@ -25,80 +25,21 @@ Please see the documentation for archived changelogs - a new archive is produced
 
 ## To Do
 
-* uibuilder client
-  * Add `formateDate` standard utility fn. [ref](https://discourse.nodered.org/t/format-date-at-yyyydd-hh-mm-ss/83130/12?u=totallyinformation)
-  * Add uibuilder.tag()
-  * Add client msg filter for URL Hash.
-
 * Examples
   * update the remote-commands example
   * Add a "FE Router Test" example
   * Add new low-code example
   * Add example save current page to file
 
+* uibuilder client
+  * Add `formateDate` standard utility fn. [ref](https://discourse.nodered.org/t/format-date-at-yyyydd-hh-mm-ss/83130/12?u=totallyinformation)
+  * Add uibuilder.tag()
+  * Add client msg filter for URL Hash.
+
 Docs
   * Update docs for ctrl msgs and msg._uib return data to say that anything set via the socket.io auth can only update when the client reconnects. 
   * document clientTimeDifference
 
-* Socket.IO rooms. [ref](https://socket.io/docs/v4/rooms/) - Rooms can be used to filter messages for specific destinations (e.g. client or page id) or to create client-to-client comms.
-  * Need a way to join rooms from Node-RED
-  * socket.js
-    * [x] Auto-join `clientId:xxxxxxx` & `pageName:xxxxxxx` rooms
-    * [x] socket.on uib-room-join/-leave-send
-    * [ ] Change send functions to use rooms where clientId/pageName is specified in `msg._uib`
-    * [ ] `socket.on('uib-room-send', ...)` Add option to also send a uibuilder msg.
-    * [ ] Incorporate `msg._uib.roomId` for sending to custom rooms
-    * [ ] ? Allow sending to different uib namespaces? would likely need an option flag for security?
-    * [ ] Allow global as well as NS rooms - allow sending between different uib connected clients. 
-          [ref](https://socket.io/docs/v4/socket-io-protocol/#introduction) - `this.io.of('/').emit('uibuilder:global', 'Hello from the server. NS: "/"')`
-    * [ ] Remove console.log from addNs
-  * client
-    * [x] joinRoom, leaveRoom, sendRoom - allows clients to join/leave/message any arbitrary room
-    * [x] Add additional listener for the default (global) namespace
-    * [ ] Add `globalSend` function
-    * [ ] Add listener when joining a room, remove when leaving
-    * [ ] Document new managed var: `globalMsg`.
-
-* uib-router
-  * add `rotate` method to auto-rotate through routes. Needs ms and stop/start args.
-  * Add 1st show marker to route change to allow client to ask for cache update
-  * Update example
-  * Make this.config.routes a SET to prevent duplicates. Or possibly an object. Needs some code changes.
-  * Methods needed:
-    * Delete route - need to update routeIds
-    * Update/reload route
-    * shutdown - that removes all elements
-    * delete templates - unloads a list of (or all) templates
-    * reload templates - to facilitate updates of a list of (or all) templates
-    * auto-rotation of routes - uib..navigate(nextRoute)
-    * next/prev route navigation
-  * Additional options:
-    * Add pre-load option early load of all routes instead of default lazy-load.
-    * unload templates after they are added to the route container. Only if hide=true. `unload: true`
-    * Maybe: options to auto-load js and css files with the same name as a template file.
-
-* uibuilder node
-  * Add manual entry field to editor config for a URL scheme to open the instanceRoot folder in an editor new window. Pre-fill with vscode entry for localhost. Partially fill with vscode-remote otherwise (or maybe have a button).
-
-* Incorporate ideas from: https://www.htmhell.dev/adventcalendar/2023/2/
-
-* More flexible low-code class attribute handling.
-  * In ui.js
-    * [ ] Update the low-code schema's with add/remove/replace `classes` property
-    * Update all fns to use the extra property
-  * In nodes - update to allow using array of classes and to have add/remove class arrays
-    * In uib-update
-    * In uib-element
-    * In uib-tag
-
-## Ideas
-
-* `uib-template` - New node to take a msg._ui template input and update parts of it belore sending (e.g. parent, id, ...). `uib-override` or `uib-config`? [Ref](https://discourse.nodered.org/t/an-idea-for-third-party-ui-in-ui-builder/83196/4?u=totallyinformation)
-* `<uib-loop>`. [Ref](https://discourse.nodered.org/t/ui/82818/33?u=totallyinformation) - A web component that takes a variable to loop over.
-* Enhance `uib-save` - allow URL to be driven by msg or context (just add new options to select, don't bother with typed input)
-* ??? uib.setAttr(selector, attr, val)? 
-* Consider special variable `managedTags`? where each entry update will automatically update the matching element ID and if the element doesn't yet exist, will watch for it and update as soon as it is added.
-
 ------------
 
 ## [Unreleased](https://github.com/TotallyInformation/node-red-contrib-uibuilder/compare/v6.7.0...main)
@@ -107,11 +48,6 @@ Docs
 
 ### 📌 Highlights
 
-* The `uibrouter` library gets some serious updates in this version. Including:
-
-  * Automatic menu updates (to highlight the current route) and new uibuilder variables to use with `<uib-var>` to show titles and descriptions that update automatically.
-  * A fix for a missing default route - the first defined route is used in this case.
-
 * The `<uib-var>` HTML component gets
 
   * **This is BIG!** - A `topic` attribute (use instead of the `variable` attribute) that automatically watches for messages from Node-RED matching the topic and outputs the payload onto the page. This becomes the _easiest_ way to automatically update the page! It is similar to mustache tags (`{{varname}}`) in frameworks but has the advantage that it is 100% vanilla standard HTML.
@@ -120,6 +56,14 @@ Docs
   
   * Access to your `./index.css` style sheet file. This lets output be styled like the rest of your page.
 
+* The `uibrouter` library gets some serious updates in this version. Including:
+
+  * Automatic menu updates (to highlight the current route). Just make sure to use list items (li) for menu items and give them a `data-route="routerid"` attribute (where `routeid` is the actual route id). The `currentRoute` class & `aria-current="page"` attribute are both added to entries matching the current route.
+  * Route definitions now support `title` & `description` properties.
+  * New uibuilder variables to use with `<uib-var>` to show titles and descriptions that update automatically.
+  * A fix for a missing default route - the first defined route is used in this case.
+  * Other small bug fixes and improvements to the logic.
+
 * The client library gets
 
   * Connected to a new "global" socket.io "room" allowing uibuilder connected pages to talk to each other. Note that this is still very basic, only the receiver is in place as yet. There is no function to do a global send.
@@ -147,6 +91,7 @@ Docs
 ### `uib-save`
 
 * **FIXED** - usePageName logic.
+* **FIXED** - import - initial deployment does not connect to node - need to clear the entry & mark as invalid. Also, no url = invalid
 * URL (uibuilder instance) drop-down list is now sorted
 * On copy/paste or import, link to uibuilder node is now cleared.
 
@@ -199,10 +144,12 @@ Docs
 * **FIXED** [Issue #232](https://github.com/TotallyInformation/node-red-contrib-uibuilder/issues/232) - Ensure origin script is removed after re-applying to ensure only 1 instance shows instead of 2.
 * **FIXED** - If no routerConfig.defaultRoute set, now uses the first (zeroth) defined route.
 * Version bumped to v1.0.1
+* **NEW** - Route definitions now support `title` & `description` properties.
 * **NEW** uibuilder managed variables added to make it easier to use with `<uib-var>`. [`uibrouter_CurrentRoute`, `uibrouter_CurrentTitle`, `uibrouter_CurrentDescription`, `uibrouter_CurrentDetails`]. These are automatically updated whenever a route change occurs.
+* **NEW** - `routeIds` variable is a JavaScript `Set` containing the list of unique route IDs.
 * **NEW Functions** - `routeTitle`, `routeDescription` - return the current route's title and description properties if set or the ID if not.
 * **NEW Function** - `currentRoute` - returns the current routes configuration object.
-* **NEW Function** - `setCurrentMenuItems` - Updates any on-page elements matching the selector `li[data-route]` such that any having a data-route attribute matching the current route id have the `currentRoute` class added. It is removed from all other matches. This makes it very easy to highlight the current route in any on-page menu's.
+* **NEW Function** - `setCurrentMenuItems` - Updates any on-page elements matching the selector `li[data-route]` such that any having a data-route attribute matching the current route id have the `currentRoute` class & `aria-current="page"` attribute added. It is removed from all other matches. This makes it very easy to highlight the current route in any on-page menu's.
 
 ### `uib-var` custom web component
 

From a1080b238310ad0cd1e79e4d10ca1a483cef68a2 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Mon, 1 Jan 2024 14:01:09 +0000
Subject: [PATCH 71/78] Add urlValid to uibuilderEditorVars

---
 typedefs.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/typedefs.js b/typedefs.js
index a0911793..98282dda 100644
--- a/typedefs.js
+++ b/typedefs.js
@@ -193,7 +193,7 @@
  * @property {object=} type Internal. Type of node instance.
  * @property {object=} x Internal
  * @property {object=} y Internal
- * @property {object=} z Internal
+ * @property {object=} z Internal. ID of the flow the node belongs to.
  * @property {object=} wires Internal. The wires attached to this node instance (uid's)
  */
 
@@ -203,6 +203,7 @@
  * @property {string} name Descriptive name, only used by Editor
  * @property {string} topic msg.topic overrides incoming msg.topic
  * @property {string} url The url path (and folder path) to be used by this instance
+ * @property {boolean} urlValid Is the url valid for this node or not?
  * @property {string} oldUrl The PREVIOUS url path (and folder path) after a url rename
  * @property {boolean} fwdInMessages Forward input msgs to output #1?
  * @property {boolean} allowScripts Allow scripts to be sent to front-end via msg? WARNING: can be a security issue.

From 0560dc06d6a6cd1b13062d1b95113b68324534c7 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Mon, 1 Jan 2024 14:02:54 +0000
Subject: [PATCH 72/78] Add urlValid to fields. Don't notify about adopting
 existing folder if it belongs to another deployed node.

---
 resources/uibuilder.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/resources/uibuilder.js b/resources/uibuilder.js
index 4a78dc96..7de2fcda 100644
--- a/resources/uibuilder.js
+++ b/resources/uibuilder.js
@@ -1034,8 +1034,8 @@
         if ( value !== undefined && value !== '') {
             this.folderExists = queryFolderExists(value)
 
-            /** If the folder already exists - lock out the editor panel. */
-            if ( this.folderExists === true && this.urlChanged === true ) {
+            /** If the folder already exists but not in another node */
+            if ( this.urlEditorDup === false && this.folderExists === true && this.urlChanged === true ) {
                 log('>> folder already exists >>', this.url, this.id)
                 RED.notify(`<b>WARNING</b>: <p>The folder for the chosen URL (${value}) is already exists.<br>It will be adopted by this node.</p>`, { type: 'warning' })
             }
@@ -1883,6 +1883,7 @@
             name: { value: '' },
             topic: { value: '' },
             url: { required: true, validate: validateUrl },
+            urlValid: {},
             fwdInMessages: { value: false },   // Should we send input msg's direct to output as well as the front-end?
             allowScripts: { value: false },    // Should we allow msg's to send JavaScript to the front-end?
             allowStyles: { value: false },     // Should we allow msg's to send CSS styles to the front-end?

From 7cdf9a9557ecf465881174e82bc1f3fb58bc7cd9 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Mon, 1 Jan 2024 14:03:29 +0000
Subject: [PATCH 73/78] Add urlValid to fields. Don't configure the node if the
 url is missing or invalid.

---
 nodes/uibuilder.js | 24 +++++++++++++++---------
 1 file changed, 15 insertions(+), 9 deletions(-)

diff --git a/nodes/uibuilder.js b/nodes/uibuilder.js
index 8a445623..dbb5891a 100644
--- a/nodes/uibuilder.js
+++ b/nodes/uibuilder.js
@@ -221,6 +221,12 @@ function nodeInstance(config) {
     if ( uib.RED === null ) return
     const RED = uib.RED
 
+    // If someone deploys but ignored the error about blank URL's - don't set up the node.
+    if (!config.url || config.urlValid === false ) {
+        RED.log.error(`[uibuilder] uibuilder node ${config.id} deployed with invalid URL in flow ${config.z} - not configuring`)
+        return
+    }
+
     /** Create the node instance - `this` can only be referenced AFTER here
      * @param {uibNode} this _
      */
@@ -228,18 +234,18 @@ function nodeInstance(config) {
 
     //#region ====== Create local copies of the node configuration (as defined in the .html file) ====== //
     // NB: this.id and this.type are also available
-    this.name            = config.name  || ''
-    this.topic           = config.topic || ''
+    this.name            = config.name  ?? ''
+    this.topic           = config.topic ?? ''
     this.url             = config.url // Undefined or '' is not valid
     this.oldUrl          = config.oldUrl
-    this.fwdInMessages   = config.fwdInMessages === undefined ? false : config.fwdInMessages
-    this.allowScripts    = config.allowScripts === undefined ? false : config.allowScripts
-    this.allowStyles     = config.allowStyles === undefined ? false : config.allowStyles
-    this.copyIndex       = config.copyIndex === undefined ? true : config.copyIndex // DEPRECATED
-    this.templateFolder  = config.templateFolder || templateConf.blank.folder
+    this.fwdInMessages   = config.fwdInMessages ?? false
+    this.allowScripts    = config.allowScripts ?? false
+    this.allowStyles     = config.allowStyles ?? false
+    this.copyIndex       = config.copyIndex ?? true // DEPRECATED
+    this.templateFolder  = config.templateFolder ?? templateConf.blank.folder
     this.extTemplate     = config.extTemplate
-    this.showfolder      = config.showfolder === undefined ? false : config.showfolder
-    this.reload          = config.reload === undefined ? false : config.reload
+    this.showfolder      = config.showfolder ?? false
+    this.reload          = config.reload ?? false
     this.sourceFolder    = config.sourceFolder // NB: Do not add a default here as undefined triggers a check for index.html in web.js:setupInstanceStatic
     this.deployedVersion = config.deployedVersion
     this.showMsgUib      = config.showMsgUib // Show additional client id in standard msgs (see socket.js)

From b27f23e656d01fd860dce6af9ef667f7a0efbd15 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Mon, 1 Jan 2024 14:04:04 +0000
Subject: [PATCH 74/78] New example - different ways to update UI content.

---
 examples/Text Update - Different Methods | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/examples/Text Update - Different Methods b/examples/Text Update - Different Methods
index 2519826d..77d21e61 100644
--- a/examples/Text Update - Different Methods	
+++ b/examples/Text Update - Different Methods	
@@ -99,6 +99,7 @@
         "name": "",
         "topic": "",
         "url": "text-update-egs",
+        "urlValid": true,
         "fwdInMessages": false,
         "allowScripts": false,
         "allowStyles": false,
@@ -926,5 +927,15 @@
                 "046d41ddfade6f54"
             ]
         ]
+    },
+    {
+        "id": "eb8221235230f0a2",
+        "type": "comment",
+        "z": "36e46a8812418a38",
+        "name": "Example updated: 2024-01-01",
+        "info": "",
+        "x": 1280,
+        "y": 40,
+        "wires": []
     }
 ]

From 7f37ba2d8a8e4445f1cf35ed815e89dec6b3d49d Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Mon, 1 Jan 2024 14:04:26 +0000
Subject: [PATCH 75/78] New example - how to use the new fe router lib

---
 examples/Client-side code/FE Router Test.json | 862 ++++++++++++++++++
 1 file changed, 862 insertions(+)
 create mode 100644 examples/Client-side code/FE Router Test.json

diff --git a/examples/Client-side code/FE Router Test.json b/examples/Client-side code/FE Router Test.json
new file mode 100644
index 00000000..0486b5fb
--- /dev/null
+++ b/examples/Client-side code/FE Router Test.json	
@@ -0,0 +1,862 @@
+[
+    {
+        "id": "858a25ec633e15aa",
+        "type": "tab",
+        "label": "FE Router Test",
+        "disabled": false,
+        "info": "",
+        "env": []
+    },
+    {
+        "id": "f21209a191164954",
+        "type": "group",
+        "z": "858a25ec633e15aa",
+        "name": "Base setup",
+        "style": {
+            "fill": "#ffffbf",
+            "fill-opacity": "0.12",
+            "label": true,
+            "color": "#000000"
+        },
+        "nodes": [
+            "91d0333d46f8e7f4",
+            "980cfa1b7c1b3a5f",
+            "6cc5ccb9c91f801d",
+            "13bb356399138c24",
+            "59925a9e660a9e95",
+            "43e63c95d634a048",
+            "eb268d3e884b4b1c",
+            "09151d9dbab7fce8",
+            "e610deb0d3b69094"
+        ],
+        "x": 24,
+        "y": 119,
+        "w": 852,
+        "h": 162
+    },
+    {
+        "id": "877f1fc905614aab",
+        "type": "group",
+        "z": "858a25ec633e15aa",
+        "name": "Front-end Code - Run after the base node has been deployed. Sets up FE code and routes. \\n See index.js for more example code and why one route deliberately errors.",
+        "style": {
+            "label": true,
+            "stroke": "#a4a4a4",
+            "fill-opacity": "0.33",
+            "color": "#000000",
+            "fill": "#ffffff"
+        },
+        "nodes": [
+            "8fe9cca36746933e",
+            "b90be49846f3f6ba",
+            "48f120153d22462f",
+            "95521b5e3f43c779",
+            "458a4019ee805475",
+            "0b263d2d25010d6d",
+            "8af6244dc82f99f2",
+            "631bd40ef94fd12c",
+            "d975894b5c20ed71",
+            "5d7e4ff16bfbb57f"
+        ],
+        "x": 24,
+        "y": 303,
+        "w": 852,
+        "h": 218
+    },
+    {
+        "id": "b2e2e4f4a60fd9b5",
+        "type": "group",
+        "z": "858a25ec633e15aa",
+        "name": "Dynamically add a new route template & route config (NB: Config update currently only possible in front-end code, see index.js) \\n Note 2 separate msgs because 2nd needs to reuse the msg.payload. Each must have a separate topic and the msg._ui must be deleted for the 2nd msg.",
+        "style": {
+            "fill": "#e3f3d3",
+            "fill-opacity": "0.21",
+            "label": true,
+            "color": "#000000"
+        },
+        "nodes": [
+            "cb8dd79b4401d55b",
+            "27be3cdf555eda2d",
+            "ec6df20997951cf7",
+            "ecab20dc9292cda8",
+            "0b2acae2bf016a98",
+            "4cdd6baae105795e"
+        ],
+        "x": 24,
+        "y": 543,
+        "w": 1082,
+        "h": 138
+    },
+    {
+        "id": "42ec81af91b01446",
+        "type": "group",
+        "z": "858a25ec633e15aa",
+        "name": "Example of changing route from Node-RED using UIBUILDER remote command",
+        "style": {
+            "fill": "#ffffff",
+            "fill-opacity": "0.23",
+            "label": true,
+            "color": "#000000"
+        },
+        "nodes": [
+            "e22db07169092461",
+            "e19d149f7048e3ac"
+        ],
+        "x": 23,
+        "y": 739,
+        "w": 592,
+        "h": 82
+    },
+    {
+        "id": "e610deb0d3b69094",
+        "type": "junction",
+        "z": "858a25ec633e15aa",
+        "g": "f21209a191164954",
+        "x": 410,
+        "y": 160,
+        "wires": [
+            [
+                "980cfa1b7c1b3a5f"
+            ]
+        ]
+    },
+    {
+        "id": "91d0333d46f8e7f4",
+        "type": "debug",
+        "z": "858a25ec633e15aa",
+        "g": "f21209a191164954",
+        "name": "uib Std Output",
+        "active": true,
+        "tosidebar": true,
+        "console": false,
+        "tostatus": true,
+        "complete": "true",
+        "targetType": "full",
+        "statusVal": "",
+        "statusType": "counter",
+        "x": 725,
+        "y": 160,
+        "wires": [],
+        "l": false
+    },
+    {
+        "id": "980cfa1b7c1b3a5f",
+        "type": "uibuilder",
+        "z": "858a25ec633e15aa",
+        "g": "f21209a191164954",
+        "name": "",
+        "topic": "",
+        "url": "uib-router-eg",
+        "urlValid": true,
+        "fwdInMessages": false,
+        "allowScripts": false,
+        "allowStyles": false,
+        "copyIndex": true,
+        "templateFolder": "blank",
+        "extTemplate": "",
+        "showfolder": false,
+        "reload": true,
+        "sourceFolder": "src",
+        "deployedVersion": "6.6.0",
+        "showMsgUib": true,
+        "title": "",
+        "descr": "",
+        "x": 570,
+        "y": 200,
+        "wires": [
+            [
+                "91d0333d46f8e7f4"
+            ],
+            [
+                "6cc5ccb9c91f801d",
+                "eb268d3e884b4b1c"
+            ]
+        ]
+    },
+    {
+        "id": "6cc5ccb9c91f801d",
+        "type": "debug",
+        "z": "858a25ec633e15aa",
+        "g": "f21209a191164954",
+        "name": "uib Control Output",
+        "active": false,
+        "tosidebar": true,
+        "console": false,
+        "tostatus": true,
+        "complete": "true",
+        "targetType": "full",
+        "statusVal": "",
+        "statusType": "counter",
+        "x": 815,
+        "y": 220,
+        "wires": [],
+        "l": false
+    },
+    {
+        "id": "13bb356399138c24",
+        "type": "link in",
+        "z": "858a25ec633e15aa",
+        "g": "f21209a191164954",
+        "name": "uib-upd-egs - no cache",
+        "links": [
+            "226aef3812fcb00b",
+            "e19d149f7048e3ac"
+        ],
+        "x": 285,
+        "y": 160,
+        "wires": [
+            [
+                "e610deb0d3b69094"
+            ]
+        ]
+    },
+    {
+        "id": "59925a9e660a9e95",
+        "type": "link in",
+        "z": "858a25ec633e15aa",
+        "g": "f21209a191164954",
+        "name": "uib-upd-egs - cached",
+        "links": [
+            "eb268d3e884b4b1c",
+            "ecab20dc9292cda8",
+            "102522874d1acb22"
+        ],
+        "x": 195,
+        "y": 240,
+        "wires": [
+            [
+                "43e63c95d634a048"
+            ]
+        ]
+    },
+    {
+        "id": "43e63c95d634a048",
+        "type": "uib-cache",
+        "z": "858a25ec633e15aa",
+        "g": "f21209a191164954",
+        "cacheall": false,
+        "cacheKey": "topic",
+        "newcache": true,
+        "num": 1,
+        "storeName": "default",
+        "name": "Cache (by topic)",
+        "storeContext": "context",
+        "varName": "uib_cache",
+        "x": 330,
+        "y": 200,
+        "wires": [
+            [
+                "980cfa1b7c1b3a5f"
+            ]
+        ]
+    },
+    {
+        "id": "eb268d3e884b4b1c",
+        "type": "link out",
+        "z": "858a25ec633e15aa",
+        "g": "f21209a191164954",
+        "name": "link out 68",
+        "mode": "link",
+        "links": [
+            "59925a9e660a9e95"
+        ],
+        "x": 725,
+        "y": 240,
+        "wires": []
+    },
+    {
+        "id": "09151d9dbab7fce8",
+        "type": "inject",
+        "z": "858a25ec633e15aa",
+        "g": "f21209a191164954",
+        "name": "Clear Cache",
+        "props": [
+            {
+                "p": "uibuilderCtrl",
+                "v": "clear cache",
+                "vt": "str"
+            },
+            {
+                "p": "cacheControl",
+                "v": "CLEAR",
+                "vt": "str"
+            }
+        ],
+        "repeat": "",
+        "crontab": "",
+        "once": false,
+        "onceDelay": 0.1,
+        "topic": "",
+        "x": 140,
+        "y": 200,
+        "wires": [
+            [
+                "43e63c95d634a048"
+            ]
+        ]
+    },
+    {
+        "id": "8fe9cca36746933e",
+        "type": "inject",
+        "z": "858a25ec633e15aa",
+        "g": "877f1fc905614aab",
+        "name": "",
+        "props": [
+            {
+                "p": "topic",
+                "vt": "str"
+            }
+        ],
+        "repeat": "",
+        "crontab": "",
+        "once": false,
+        "onceDelay": 0.1,
+        "topic": "setup all FE files",
+        "x": 85,
+        "y": 360,
+        "wires": [
+            [
+                "8af6244dc82f99f2",
+                "631bd40ef94fd12c",
+                "d975894b5c20ed71",
+                "5d7e4ff16bfbb57f"
+            ]
+        ],
+        "l": false
+    },
+    {
+        "id": "b90be49846f3f6ba",
+        "type": "template",
+        "z": "858a25ec633e15aa",
+        "g": "877f1fc905614aab",
+        "name": "index.html",
+        "field": "payload",
+        "fieldType": "msg",
+        "format": "html",
+        "syntax": "plain",
+        "template": "<!doctype html>\n<html lang=\"en\">\n\n<head>\n\n    <meta charset=\"utf-8\">\n    <meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">\n    <link rel=\"icon\" href=\"../uibuilder/images/node-blue.ico\">\n\n    <title>FE Router - Node-RED uibuilder</title>\n    <meta name=\"description\" content=\"Node-RED uibuilder - FE Router\">\n\n    <!-- Your own CSS (defaults to loading uibuilders css)-->\n    <link type=\"text/css\" rel=\"stylesheet\" href=\"./index.css\" media=\"all\">\n\n    <!-- #region Supporting Scripts. These MUST be in the right order. Note no leading / -->\n    <script defer src=\"../uibuilder/uibuilder.iife.min.js\"></script>\n    <script defer src=\"../uibuilder/utils/uibrouter.iife.min.js\"></script>\n    <script defer src=\"./index.js\">\n        /* OPTIONAL: Put your custom code in that */\n    </script>\n    <!-- #endregion -->\n\n    <template id=\"route01\">\n        <h2>This comes from an internal <code class=\"r01style\">&lt;template></code> tag</h2>\n        <div>\n            Route 1\n        </div>\n        <script>\n            console.log('I was produced by a script in Route 1')\n        </script>\n        <style>\n            .r01style {\n                background-color: yellow;\n                color: blue;\n                font-weight: 900;\n            }\n        </style>\n    </template>\n    <template id=\"route02\">\n        <h2>This also comes from an internal <code>&lt;template></code> tag</h2>\n        <div class=\"extraclass\">\n            Route 2\n        </div>\n    </template>\n    <template id=\"route06\">\n        <h2>This also comes from an internal <code>&lt;template></code> tag</h2>\n        <div class=\"extraclass\">\n            Route 6\n        </div>\n    </template>\n\n</head>\n\n<body class=\"uib\">\n    <script>\n        console.log('a script at the start of body')\n    </script>\n\n    <header>\n        <h1 class=\"with-subtitle\">An example of a framework-less front-end router</h1>\n        <div role=\"doc-subtitle\">Using the UIBUILDER IIFE library.</div>\n\n        <h2>Current Route Title: <uib-var variable=\"uibrouter_CurrentTitle\"></uib-var></h2>\n\n        <nav id=\"main-menu\" class=\"horizontal\" aria-labelledby=\"primary-navigation\">\n            <h2 id=\"primary-navigation\">Menu</h2>:\n            <ul id=\"routemenu\" role=\"menubar\" aria-describedby=\"main-menu\">\n                <!-- <li><a href=\"#route01\" onclick=\"router.doRoute(event)\">#1</a></li> -->\n                <li data-route=\"route01\" tabindex=\"0\" role=\"menuitem\"><a href=\"#route01\">#1 (Internal template)</a></li>\n                <li data-route=\"route02\" tabindex=\"0\" role=\"menuitem\"><a href=\"#route02\">#2 (Internal template)</a></li>\n                <li data-route=\"route03\" tabindex=\"0\" role=\"menuitem\"><a href=\"#route03?doh=rei\">#3 (External template)</a></li>\n                <li data-route=\"route04\" tabindex=\"0\" role=\"menuitem\"><a href=\"#route04\">#4 (fails as the external route template doesn't exist)</a></li>\n                <li data-route=\"route05\" tabindex=\"0\" role=\"menuitem\"><a href=\"#route05\">#5 (External template)</a></li>\n                <li data-route=\"route06\" tabindex=\"0\" role=\"menuitem\"><a href=\"#route06\">#6 (Internal template)</a></li>\n            </ul>\n        </nav>\n        <div href=\"#route01\" onclick=\"router.doRoute(event)\" style=\"cursor: pointer;\">Goto route #1 via click event handler</div>\n    </header>\n\n    <main>\n        <div id=\"more\"><!-- '#more' is used as a parent for dynamic HTML content in examples --></div>\n    \n        <div id=\"uibroutecontainer\"><!-- router content will appear here --></div>\n    </main>\n\n</body></html>",
+        "output": "str",
+        "x": 520,
+        "y": 360,
+        "wires": [
+            [
+                "48f120153d22462f"
+            ]
+        ]
+    },
+    {
+        "id": "48f120153d22462f",
+        "type": "uib-save",
+        "z": "858a25ec633e15aa",
+        "g": "877f1fc905614aab",
+        "url": "uib-router-eg",
+        "uibId": "980cfa1b7c1b3a5f",
+        "folder": "src",
+        "fname": "",
+        "createFolder": true,
+        "reload": true,
+        "usePageName": false,
+        "encoding": "utf8",
+        "mode": 438,
+        "name": "",
+        "topic": "",
+        "x": 780,
+        "y": 360,
+        "wires": []
+    },
+    {
+        "id": "95521b5e3f43c779",
+        "type": "template",
+        "z": "858a25ec633e15aa",
+        "g": "877f1fc905614aab",
+        "name": "index.js",
+        "field": "payload",
+        "fieldType": "msg",
+        "format": "javascript",
+        "syntax": "plain",
+        "template": "// @ts-nocheck\n/*globals UibRouter, uibuilder */\n\nconst routerConfig = {\n    // Router templates created inside the routeContainer, specify an CSS selector\n    // If not provided, default div with ID uibroutecontainer is added as the last element of the body\n    routeContainer: '#routecontainer',\n\n    // Optionally, chose a default route id to be displayed on load\n    // If not given, the first defined route is used.\n    // defaultRoute: 'route03',\n\n    hide: true,\n    // unload: true,\n\n    // Define the possible routes type=url for externals\n    // Can be an object or an array but each entry must be an object containing {id,src,type}\n    //   type can be anything but only `url` will be treated as an external template file.\n    //   src is either a CSS selector for a <template> or a URL of an HTML file.\n    //   id must match the href=\"#routeid\" in any menu/link. and `<template id=\"routeid\">` on any loaded template\n    //      must be unique on the page\n    routes: [\n        {\n            id: 'route01', src: '#route01',\n            title: 'Route 1', description: 'My first route'\n        }, {\n            id: 'route02', src: '#route02',\n            title: 'Route 2', description: 'My second route'\n        }, {\n            id: 'route03', src: './fe-routes/route03.html', type: 'url',\n            title: 'Route 3', description: 'My third route'\n        },\n        // Doesn't exist. Tests load error\n        {id: 'route04', src: './fe-routes/dummy.html', type: 'url'},\n    ],\n}\nconst router = new UibRouter(routerConfig)\n\n// Example of dynamically adding additional routes -> must be external or have existing templates\nconst extraRoutes = [\n    { id: 'route05', src: './fe-routes/route05.html', type: 'url', title: 'Route 5' },\n    { id: 'route06', src: '#route06' /* NB: No title specified */ },\n]\nrouter.addRoutes(extraRoutes)\n\n// Currently no way to dynamically add new routes from Node-RED\n// So we need to do it here\nuibuilder.onTopic('addRoute', (msg) => {\n    router.addRoutes(msg.payload)\n    console.log('Route added from Node-RED', msg.payload.id)\n})\n\n// - Optionally send a msg back to Node-RED when the route changes\n// uibuilder.watchUrlHash()\n\n// Example of changing route from code (after 5 seconds):\n// setTimeout(() => {\n//     router.doRoute('route01')\n// }, 5000)\n\n/** If you need to be certain that all external route templates\n *  have loaded before doing something, this is how. */\n// uibuilder.onChange('uibrouter', uibrouter => {\n//     if (uibrouter === 'loaded') {\n//         // Do stuff\n//     }\n// })\n/** Monitor route changes in code */\n// uibuilder.onChange('uibrouter_CurrentRoute', (routeId) => {\n//     console.log(`ROUTE CHANGED. New Route: ${routeId}`)\n//     // To get the previous route, use: router.previousRouteId\n//     // To get the current route's config, use: router.currentRoute()\n// })\n/** Monitor route changes in code and get the new route config */\n// uibuilder.onChange('uibrouter_CurrentDetails', (routeConfig) => {\n//     console.log(`ROUTE CHANGED. New Route Details: ${routeConfig}`)\n// })\n",
+        "output": "str",
+        "x": 530,
+        "y": 400,
+        "wires": [
+            [
+                "48f120153d22462f"
+            ]
+        ]
+    },
+    {
+        "id": "458a4019ee805475",
+        "type": "template",
+        "z": "858a25ec633e15aa",
+        "g": "877f1fc905614aab",
+        "name": "route03.html",
+        "field": "payload",
+        "fieldType": "msg",
+        "format": "html",
+        "syntax": "plain",
+        "template": "<style>\n    /* Note that these only exist when this route is showing */\n    .extraclass {\n        color: green;\n        border: 2px solid var(--warning);\n        padding: 1em;\n    }\n    .coolclass {\n        background-color: var(--surface4);\n        border: 2px solid var(--info-intense);\n        padding: 1em;\n        margin: .5em 0;\n    }\n</style>\n<script>\n    // ! WARNING: This will be re-run EVERY time the route is shown - use with caution.\n    // Here we use a simple global variable to ensure we only ever run once.\n    // Also note that deleting a route that has previously displayed will not \n    //   remove any global values set here including even handlers.\n    \n    console.log('route03 external: built-in script running ...')\n\n    if (!window['mysensor']) window['mysensor'] = {temperature: 'N/A', humdity: 'N/A' }\n    else {\n        let e =  $('#mytemp') // make sure the element exists\n        if (e) e.innerText = window['mysensor'].temperature // update if it exists\n        e =  $('#myhumid') // make sure the element exists\n        if (e) e.innerText = window['mysensor'].humidity // update if it exists\n    }\n\n    if (!window['route3Run']) { // make sure this is unique across routes\n\n        // A function to use in <a href=\"#routeid\" onclick=\"doClick1(event)\">\n        // function doClick1(event) {\n        //     console.log('You did a click1 (onclick=\"router.doRoute(event)\")', event)\n        // }\n\n        // Alternative to using onclick is to add the handler via code\n        // const r03d02 = $('#r03d02')\n        // if (r03d02) r03d02.addEventListener('click', (event) => {\n        // $('#r03d02').addEventListener('click', (event) => {\n        //     console.log('You did a different click (addEventListener)', event)\n        // })\n        // or even:\n        // r03d02.addEventListener('click', doClick1)\n\n        // Example of updating the UI direct from a Node-RED message\n        uibuilder.onChange('msg', (msg) => {\n            console.log('msg from Node-RED handled in a route')\n            if(msg.topic === 'mysensor') {\n                let e =  $('#mytemp') // make sure the element exists\n                if (e) e.innerText = msg.payload.temperature // update if it exists\n                window['mysensor'].temperature = msg.payload.temperature\n                e =  $('#myhumid') // make sure the element exists\n                if (e) e.innerText = msg.payload.humidity // update if it exists\n                window['mysensor'].humidity = msg.payload.humidity\n            }\n        })\n        // You could instead use the `uib-update` node to avoid this code.\n    }\n    // Make sure we only run the above once.\n    route3Run = true\n</script>\n\n<h2>This comes from an external file</h2>\n<div  id=\"r03d01\" class=\"extraclass\">\n    Route 3 part 1\n</div>\n<div id=\"r03d02\" class=\"extraclass\">\n    Route 3 part 2\n</div>\n<div class=\"coolclass\">\n    Temperature: <span id=\"mytemp\">...</span>℃<br>\n    Humidity: <span id=\"myhumid\">...</span>%\n</div>\n",
+        "output": "str",
+        "x": 520,
+        "y": 440,
+        "wires": [
+            [
+                "48f120153d22462f"
+            ]
+        ]
+    },
+    {
+        "id": "0b263d2d25010d6d",
+        "type": "template",
+        "z": "858a25ec633e15aa",
+        "g": "877f1fc905614aab",
+        "name": "route05.html",
+        "field": "payload",
+        "fieldType": "msg",
+        "format": "html",
+        "syntax": "plain",
+        "template": "<h2>This comes from an external file - <code>./fe-routes/route05.html</code></h2>\n<div  id=\"r04d01\" class=\"extraclass\">\n    Route 5 part 1\n</div>\n<div id=\"r04d02\" class=\"extraclass\">\n    Route 5 part 2\n</div>\n",
+        "output": "str",
+        "x": 520,
+        "y": 480,
+        "wires": [
+            [
+                "48f120153d22462f"
+            ]
+        ]
+    },
+    {
+        "id": "8af6244dc82f99f2",
+        "type": "change",
+        "z": "858a25ec633e15aa",
+        "g": "877f1fc905614aab",
+        "name": "index.html",
+        "rules": [
+            {
+                "t": "set",
+                "p": "fname",
+                "pt": "msg",
+                "to": "index.html",
+                "tot": "str"
+            }
+        ],
+        "action": "",
+        "property": "",
+        "from": "",
+        "to": "",
+        "reg": false,
+        "x": 280,
+        "y": 360,
+        "wires": [
+            [
+                "b90be49846f3f6ba"
+            ]
+        ]
+    },
+    {
+        "id": "631bd40ef94fd12c",
+        "type": "change",
+        "z": "858a25ec633e15aa",
+        "g": "877f1fc905614aab",
+        "name": "index.js",
+        "rules": [
+            {
+                "t": "set",
+                "p": "fname",
+                "pt": "msg",
+                "to": "index.js",
+                "tot": "str"
+            }
+        ],
+        "action": "",
+        "property": "",
+        "from": "",
+        "to": "",
+        "reg": false,
+        "x": 270,
+        "y": 400,
+        "wires": [
+            [
+                "95521b5e3f43c779"
+            ]
+        ]
+    },
+    {
+        "id": "d975894b5c20ed71",
+        "type": "change",
+        "z": "858a25ec633e15aa",
+        "g": "877f1fc905614aab",
+        "name": "fe-routes/route03.html",
+        "rules": [
+            {
+                "t": "set",
+                "p": "fname",
+                "pt": "msg",
+                "to": "fe-routes/route03.html",
+                "tot": "str"
+            }
+        ],
+        "action": "",
+        "property": "",
+        "from": "",
+        "to": "",
+        "reg": false,
+        "x": 310,
+        "y": 440,
+        "wires": [
+            [
+                "458a4019ee805475"
+            ]
+        ]
+    },
+    {
+        "id": "5d7e4ff16bfbb57f",
+        "type": "change",
+        "z": "858a25ec633e15aa",
+        "g": "877f1fc905614aab",
+        "name": "fe-routes/route05.html",
+        "rules": [
+            {
+                "t": "set",
+                "p": "fname",
+                "pt": "msg",
+                "to": "fe-routes/route05.html",
+                "tot": "str"
+            }
+        ],
+        "action": "",
+        "property": "",
+        "from": "",
+        "to": "",
+        "reg": false,
+        "x": 310,
+        "y": 480,
+        "wires": [
+            [
+                "0b263d2d25010d6d"
+            ]
+        ]
+    },
+    {
+        "id": "cb8dd79b4401d55b",
+        "type": "inject",
+        "z": "858a25ec633e15aa",
+        "g": "b2e2e4f4a60fd9b5",
+        "name": "",
+        "props": [
+            {
+                "p": "topic",
+                "vt": "str"
+            }
+        ],
+        "repeat": "",
+        "crontab": "",
+        "once": false,
+        "onceDelay": 0.1,
+        "topic": "setup all FE files",
+        "x": 85,
+        "y": 600,
+        "wires": [
+            [
+                "27be3cdf555eda2d"
+            ]
+        ],
+        "l": false
+    },
+    {
+        "id": "27be3cdf555eda2d",
+        "type": "template",
+        "z": "858a25ec633e15aa",
+        "g": "b2e2e4f4a60fd9b5",
+        "name": "route07 template",
+        "field": "payload",
+        "fieldType": "msg",
+        "format": "html",
+        "syntax": "plain",
+        "template": "<h2>dynamically loaded from Node-RED</h2>\n<p>\n    A template created in Node-RED and sent to\n    clients using a uib-tag node to create the template\n    via a uib-cache node. So (re)-loaded as needed.\n</p>\n<div  id=\"r07d01\" class=\"extraclass\">\n    Route 7 part 1\n</div>\n<div id=\"r07d02\" class=\"extraclass\">\n    Route 7 part 2\n</div>\n",
+        "output": "str",
+        "x": 210,
+        "y": 600,
+        "wires": [
+            [
+                "ec6df20997951cf7"
+            ]
+        ]
+    },
+    {
+        "id": "ec6df20997951cf7",
+        "type": "uib-tag",
+        "z": "858a25ec633e15aa",
+        "g": "b2e2e4f4a60fd9b5",
+        "name": "",
+        "topic": "",
+        "tag": "template",
+        "tagSource": "",
+        "tagSourceType": "str",
+        "parent": "head",
+        "parentSource": "",
+        "parentSourceType": "str",
+        "elementId": "route07",
+        "elementIdSourceType": "str",
+        "position": "last",
+        "positionSourceType": "str",
+        "slotSourceProp": "payload",
+        "slotSourcePropType": "msg",
+        "attribsSource": "",
+        "attribsSourceType": "msg",
+        "slotPropMarkdown": false,
+        "x": 430,
+        "y": 600,
+        "wires": [
+            [
+                "4cdd6baae105795e"
+            ]
+        ]
+    },
+    {
+        "id": "ecab20dc9292cda8",
+        "type": "link out",
+        "z": "858a25ec633e15aa",
+        "g": "b2e2e4f4a60fd9b5",
+        "name": "link out 79",
+        "mode": "link",
+        "links": [
+            "59925a9e660a9e95"
+        ],
+        "x": 1065,
+        "y": 600,
+        "wires": []
+    },
+    {
+        "id": "0b2acae2bf016a98",
+        "type": "change",
+        "z": "858a25ec633e15aa",
+        "g": "b2e2e4f4a60fd9b5",
+        "name": "Add route to route list",
+        "rules": [
+            {
+                "t": "delete",
+                "p": "_ui",
+                "pt": "msg"
+            },
+            {
+                "t": "set",
+                "p": "payload",
+                "pt": "msg",
+                "to": "{\"id\":\"route07\",\"src\":\"#route07\",\"title\":\"Route #7\",\"description\":\"Yet another route, #7\"}",
+                "tot": "json"
+            },
+            {
+                "t": "set",
+                "p": "topic",
+                "pt": "msg",
+                "to": "addRoute",
+                "tot": "str"
+            }
+        ],
+        "action": "",
+        "property": "",
+        "from": "",
+        "to": "",
+        "reg": false,
+        "x": 900,
+        "y": 640,
+        "wires": [
+            [
+                "ecab20dc9292cda8"
+            ]
+        ]
+    },
+    {
+        "id": "e22db07169092461",
+        "type": "inject",
+        "z": "858a25ec633e15aa",
+        "g": "42ec81af91b01446",
+        "name": "Navigate to #route07",
+        "props": [
+            {
+                "p": "_uib",
+                "v": "{\"command\":\"navigate\",\"prop\":\"#route07\"}",
+                "vt": "json"
+            },
+            {
+                "p": "topic",
+                "vt": "str"
+            }
+        ],
+        "repeat": "",
+        "crontab": "",
+        "once": false,
+        "onceDelay": 0.1,
+        "topic": "toggle-visible-msgs",
+        "x": 159,
+        "y": 780,
+        "wires": [
+            [
+                "e19d149f7048e3ac"
+            ]
+        ],
+        "info": "Change the \"prop\" value to a CSS Selector.\r\n\r\nThe display will appear as the last child of\r\nthat selected element.\r\n\r\ne.g. `body` or `#more`."
+    },
+    {
+        "id": "e19d149f7048e3ac",
+        "type": "link out",
+        "z": "858a25ec633e15aa",
+        "g": "42ec81af91b01446",
+        "name": "no-cache",
+        "mode": "link",
+        "links": [
+            "13bb356399138c24"
+        ],
+        "x": 529,
+        "y": 780,
+        "wires": [],
+        "l": true
+    },
+    {
+        "id": "4cdd6baae105795e",
+        "type": "uib-tag",
+        "z": "858a25ec633e15aa",
+        "g": "b2e2e4f4a60fd9b5",
+        "name": "Add new menu item",
+        "topic": "",
+        "tag": "li",
+        "tagSource": "",
+        "tagSourceType": "str",
+        "parent": "#routemenu",
+        "parentSource": "",
+        "parentSourceType": "str",
+        "elementId": "",
+        "elementIdSourceType": "str",
+        "position": "last",
+        "positionSourceType": "str",
+        "slotSourceProp": "<a href=\"#route07\">#7 (Internal from Node-RED)</a>",
+        "slotSourcePropType": "str",
+        "attribsSource": "{\"data-route\":\"router07\", \"tabindex\":0, \"role\":\"menuitem\"}",
+        "attribsSourceType": "json",
+        "slotPropMarkdown": false,
+        "x": 660,
+        "y": 600,
+        "wires": [
+            [
+                "0b2acae2bf016a98",
+                "ecab20dc9292cda8"
+            ]
+        ]
+    },
+    {
+        "id": "59c26c2bdff82dde",
+        "type": "comment",
+        "z": "858a25ec633e15aa",
+        "name": "Front-end router library tests and examples. \\n After import, (1) change the URL in uibuilder node then deploy, (2) change the selection in the uib-save node and deploy again, \\n (3) Run the Front-end Code flow. Example is then ready to use.",
+        "info": "",
+        "x": 440,
+        "y": 60,
+        "wires": []
+    },
+    {
+        "id": "f94257739947b92a",
+        "type": "inject",
+        "z": "858a25ec633e15aa",
+        "name": "Toggle Visible Msgs",
+        "props": [
+            {
+                "p": "_uib",
+                "v": "{\"command\":\"showMsg\", \"pageName\": \"index.html\"}",
+                "vt": "json"
+            }
+        ],
+        "repeat": "",
+        "crontab": "",
+        "once": false,
+        "onceDelay": 0.1,
+        "topic": "",
+        "x": 1050,
+        "y": 160,
+        "wires": [
+            [
+                "102522874d1acb22"
+            ]
+        ]
+    },
+    {
+        "id": "0fdc75e49be41fc5",
+        "type": "inject",
+        "z": "858a25ec633e15aa",
+        "name": "Log Lvl 5 (cached)",
+        "props": [
+            {
+                "p": "_uib",
+                "v": "{\"command\":\"set\",\"prop\":\"logLevel\",\"value\":5}",
+                "vt": "json"
+            },
+            {
+                "p": "topic",
+                "vt": "str"
+            }
+        ],
+        "repeat": "",
+        "crontab": "",
+        "once": false,
+        "onceDelay": 0.1,
+        "topic": "Set-log-level",
+        "x": 1050,
+        "y": 200,
+        "wires": [
+            [
+                "102522874d1acb22"
+            ]
+        ]
+    },
+    {
+        "id": "efe361618d27d32d",
+        "type": "inject",
+        "z": "858a25ec633e15aa",
+        "name": "Log Lvl 0 (cached)",
+        "props": [
+            {
+                "p": "_uib",
+                "v": "{\"command\":\"set\",\"prop\":\"logLevel\",\"value\":0}",
+                "vt": "json"
+            },
+            {
+                "p": "topic",
+                "vt": "str"
+            }
+        ],
+        "repeat": "",
+        "crontab": "",
+        "once": false,
+        "onceDelay": 0.1,
+        "topic": "Set-log-level",
+        "x": 1050,
+        "y": 240,
+        "wires": [
+            [
+                "102522874d1acb22"
+            ]
+        ]
+    },
+    {
+        "id": "102522874d1acb22",
+        "type": "link out",
+        "z": "858a25ec633e15aa",
+        "name": "link out 80",
+        "mode": "link",
+        "links": [
+            "59925a9e660a9e95"
+        ],
+        "x": 1205,
+        "y": 200,
+        "wires": []
+    },
+    {
+        "id": "12f9ccbea3c0e114",
+        "type": "comment",
+        "z": "858a25ec633e15aa",
+        "name": "Example updated: 2024-01-01",
+        "info": "",
+        "x": 1080,
+        "y": 40,
+        "wires": []
+    }
+]

From 62be2024fefabb2d1a7f8497326a7e08b430cd17 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Mon, 1 Jan 2024 14:04:36 +0000
Subject: [PATCH 76/78] Updates

---
 CHANGELOG.md           | 53 ++++++++++++------------------------------
 docs/roadmap/readme.md | 10 +++++++-
 2 files changed, 24 insertions(+), 39 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index aac4015e..c106bd16 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,43 +8,15 @@ Please see the documentation for archived changelogs - a new archive is produced
 
 ## Issues
 
-* uibuilder node - Issues if user deploys without entering a url
-  
-  To reproduce: [ref](https://discourse.nodered.org/t/uibuilder-new-release-v6-7-new-front-end-router-improvements-to-uib-html-uib-save-and-more/83106/4)
-
-  Pull a uibuilder node in a flow.
-  Press Deploy.
-  The editor complains that the node just dropped isn't configured correctly. Deploy anyway.
-  Open the property editor of the uibuilder node, enter a valid URL ( like uibtest), close the property pane with Done.
-  First observation: The uibuilder node still shows the red triangle - despite correctly configured now.
-  Press Deploy.
-  The editor complains that the node still isn't configured correctly. Deploy anyway.
-  Second observation: The uibuilder node still shows the red triangle - which is definitely unexpected now. Node status displays "Node Initialised" @ blue.
-
-  Looks like it's validateVersion that triggers this red triangle.. [ref](https://discourse.nodered.org/t/uibuilder-new-release-v6-7-new-front-end-router-improvements-to-uib-html-uib-save-and-more/83106/7?u=totallyinformation)
-
-## To Do
-
-* Examples
-  * update the remote-commands example
-  * Add a "FE Router Test" example
-  * Add new low-code example
-  * Add example save current page to file
-
-* uibuilder client
-  * Add `formateDate` standard utility fn. [ref](https://discourse.nodered.org/t/format-date-at-yyyydd-hh-mm-ss/83130/12?u=totallyinformation)
-  * Add uibuilder.tag()
-  * Add client msg filter for URL Hash.
-
-Docs
-  * Update docs for ctrl msgs and msg._uib return data to say that anything set via the socket.io auth can only update when the client reconnects. 
-  * document clientTimeDifference
+None.
 
 ------------
 
-## [Unreleased](https://github.com/TotallyInformation/node-red-contrib-uibuilder/compare/v6.7.0...main)
+## [Unreleased](https://github.com/TotallyInformation/node-red-contrib-uibuilder/compare/v6.8.0...main)
+
+Nothing currently.
 
-<!-- Nothing currently. -->
+## [v6.8.0](https://github.com/TotallyInformation/node-red-contrib-uibuilder/compare/v6.7.0...v6.8.0)
 
 ### 📌 Highlights
 
@@ -79,27 +51,31 @@ Docs
 * Front-end commands issued from Node-RED can now take a `quiet` option set to `true` to prevent the return message. e.g. `{"_uib": {"command":"navigate","prop":"#newroute","quiet":true}}`
 * Front-end developers now have full access to the `ui.js` library via the `$ui` global.
 
-### `uib-cache`
+### `uibuilder` node
+
+* **FIXED** Previously, if an editor deployed a uibuilder node with an invalid URL, the node configuration & setup still happened which lead to odd results. Now a missing or invalid URL results in a logged error and the node is not configured. [ref](https://discourse.nodered.org/t/uibuilder-new-release-v6-7-new-front-end-router-improvements-to-uib-html-uib-save-and-more/83106/4)
+
+### `uib-cache` node
 
 * **FIXED** - bug introduced by last version's correction of `connections` count meant that "Only replay cache when client is really new" option resulted in the cache never being sent.
 * Re-worked node's html into latest format with JS in separate resources file.
 
-### `uib-html`
+### `uib-html` node
 
 * Downgrade `jsdom` version to 21.* as that is the last version that supports Node.js v14.
 
-### `uib-save`
+### `uib-save` node
 
 * **FIXED** - usePageName logic.
 * **FIXED** - import - initial deployment does not connect to node - need to clear the entry & mark as invalid. Also, no url = invalid
 * URL (uibuilder instance) drop-down list is now sorted
 * On copy/paste or import, link to uibuilder node is now cleared.
 
-### `uib-tag`
+### `uib-tag` node
 
 * **FIXED** - Allow blanks in some typed input fields.
 
-### `uib-update`
+### `uib-update` node
 
 * **FIXED** - Allow blanks in some typed input fields.
 
@@ -180,6 +156,7 @@ Docs
 
 * Re-organised & renamed examples now there are more of them.
 * **NEW** - "Text Update - Different Methods" example
+* **NEW** - "FE Router Test" example
 
 ### Documentation
 
diff --git a/docs/roadmap/readme.md b/docs/roadmap/readme.md
index 7fff097b..52e232bd 100644
--- a/docs/roadmap/readme.md
+++ b/docs/roadmap/readme.md
@@ -3,7 +3,7 @@ title: uibuilder Roadmap
 description: |
   This page outlines the future direction of uibuilder. Including specific things that will almost certainly happen as well as more speculative ideas.
 created: 2022-02-01 11:15:27
-updated: 2023-12-31 15:17:45
+updated: 2024-01-01 13:59:16
 ---
 
 Is there something in this list you would like to see prioritised? Is there something you could help with? Please get in touch via the [Node-RED forum](https://discourse.nodered.org/). Alternatively, you can start a [discussion on GitHub](https://github.com/TotallyInformation/node-red-contrib-uibuilder/discussions) or [raise a GitHub issue](https://github.com/TotallyInformation/node-red-contrib-uibuilder/issues). Please note that I no longer have the time to monitor the #uibuilder channel in the Node-RED slack.
@@ -464,6 +464,8 @@ Vars moved to ti-common (replace): node.urlPrefix, node.nodeRoot, paletteCategor
 
   
 
+* Add client msg filter for URL Hash. To allow sending of data only to a specific router route.
+
 * ??? `uib.setAttr(selector, attr, val)`?  - quick way to set an attribute on an element.
 
 * Consider special variable `managedTags`? where each entry update will automatically update the matching element ID and if the element doesn't yet exist, will watch for it and update as soon as it is added. E.g. setting value on `uib.managedTags.mytag` would update `<xxxx id="mytag"></xxxx>`. ?? Just the slot content? Or attributes as well (perhaps making the value an object).
@@ -490,6 +492,7 @@ Vars moved to ti-common (replace): node.urlPrefix, node.nodeRoot, paletteCategor
 
 * *New Functions* (all to be callable from Node-RED):
 
+  * [ ] `formateDate` - Use INTL std lib, usable as a `<uib-var>` filter function. [ref](https://discourse.nodered.org/t/format-date-at-yyyydd-hh-mm-ss/83130/12?u=totallyinformation)
   * [ ] `uibuilder.cacheSend()` and `uibuilder.cacheClear()` - send ctrl msgs back to node-red - reinstate in uib-cache fn now we've removed extra ctrl send.
   * [ ] `uibuilder.showLog()` - Add a visible panel on-page to show console.log output. Redirects (or maybe copies) uibuilder.log output - possibly also console.log. Will need amendments to the uibuilder.log function to give options for output to this and/or back to Node-RED.
   * [ ] `uibuilder.socketReconnect()` Add manual socket.io reconnection function so it can be incorporated in disconnected UI notifications.
@@ -570,6 +573,9 @@ Vars moved to ti-common (replace): node.urlPrefix, node.nodeRoot, paletteCategor
 ### Library: `uibrouter.js` (FE router)
 
 * Add option to auto scroll to a css selector on route change.
+* Add a function to auto-rotate routes.
+* Add a function to go to next/previous route.
+* Update "FE Router Test" example with an auto-rotate flow.
 
 ### Web Component: `uib-var` (internal)
 
@@ -611,6 +617,8 @@ Vars moved to ti-common (replace): node.urlPrefix, node.nodeRoot, paletteCategor
 
 ### Documentation (including videos)
 
+* Update docs for ctrl msgs and `msg._uib` return data to say that anything set via the socket.io auth can only update when the client reconnects. 
+* document clientTimeDifference
 * New doc for using `ui.js` outside of uibuilder.
 * `README.md`: Add more links to the Features section so that each feature points to appropriate documentation. Add a landing-page link to "includes many helper features" to signpost to relavent detailed documentation.
 * Node-specific docs.

From ac65ba4f88e84e9dbf7f0d4dcd891cf460508237 Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Mon, 1 Jan 2024 14:44:02 +0000
Subject: [PATCH 77/78] Add notes on outdated dependencies

---
 CHANGELOG.md | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index c106bd16..ed7348e9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,21 @@ Please see the documentation for archived changelogs - a new archive is produced
 
 None.
 
+### "Outdated" dependencies
+
+Unfortunately, for various reasons, some of the package dependencies that UIBUILDER relies on cannot be updated to their latest versions. These are documented, with the reason, here.
+
+* `execa` - restricted to v5. Author sindresorhus decided that everyone HAS to use ESM even though his packages are widely used and he must know that it is often impossible to move from CommonJS without a complete rewrite. Node-RED is so complex, when would that be possible? Very annoying.
+* `jsdom` - restricted to v21. Later versions require node.js >v14 but Node-RED is still baselined at v14. Requires update to Node-RED to release this.
+* `nanoid` - restricted to v3. Another annoying sindresorhus node.
+
+These are only used for developing UIBUILDER so somwhat less critical.
+
+* `@types/node` - restricted to v14 to match Node-RED's current baseline.
+* ~~`gulp-debug` - restricted to v4. Another annoying sindresorhus node.~~ Removed in v6.8
+
+I will be trying to eliminate packages that have enforced structural changes. The author's arrogance is palpable.
+
 ------------
 
 ## [Unreleased](https://github.com/TotallyInformation/node-red-contrib-uibuilder/compare/v6.8.0...main)

From f139628e29fdcb0fd8a51303872605b7b763065c Mon Sep 17 00:00:00 2001
From: Julian Knight <1591850+TotallyInformation@users.noreply.github.com>
Date: Mon, 1 Jan 2024 14:44:34 +0000
Subject: [PATCH 78/78] Update package dependencies. Remove gulp-debug  (now
 ESM-only so can't use)

---
 gulpfile.js       |   2 +-
 package-lock.json | 987 ++++++++++++++++++++++++----------------------
 package.json      | 134 ++++---
 3 files changed, 596 insertions(+), 527 deletions(-)

diff --git a/gulpfile.js b/gulpfile.js
index fe84c659..a0f11562 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -36,7 +36,7 @@ const include = require('gulp-include')
 const once = require('gulp-once')
 // const prompt = require('gulp-prompt')
 const greplace = require('gulp-replace')
-// const debug = require('gulp-debug')
+// const debug = require('gulp-debug') // Don't use - force changed to ESM only
 const htmlmin = require('gulp-htmlmin')
 const jeditor = require('gulp-json-editor')
 // const gulpEsbuild = require('gulp-esbuild')
diff --git a/package-lock.json b/package-lock.json
index 1d7a28a7..67734f7c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -6,7 +6,7 @@
   "packages": {
     "": {
       "name": "node-red-contrib-uibuilder",
-      "version": "6.6.0",
+      "version": "6.8.0",
       "hasInstallScript": true,
       "license": "Apache-2.0",
       "dependencies": {
@@ -17,7 +17,7 @@
         "express": "^4.17.1",
         "fast-glob": "^3.2.7",
         "fs-extra": "^11.1.0",
-        "jsdom": "^22.1.0",
+        "jsdom": "^21",
         "nanoid": "^3",
         "serve-index": "^1.9.1",
         "socket.io": "^4.3.2",
@@ -34,14 +34,13 @@
         "eslint-plugin-es": "^4.1.0",
         "eslint-plugin-html": "^7.1.0",
         "eslint-plugin-import": "^2.26.0",
-        "eslint-plugin-jsdoc": "^46.4.2",
+        "eslint-plugin-jsdoc": "^47.0.2",
         "eslint-plugin-n": "^16.0.1",
         "eslint-plugin-promise": "^6.0.0",
         "eslint-plugin-sonarjs": "^0",
         "gulp": "^4.0.2",
         "gulp-clean-css": "^4.3.0",
-        "gulp-debug": "^4.0.0",
-        "gulp-esbuild": "^0.11.1",
+        "gulp-esbuild": "^0.12.0",
         "gulp-htmlmin": "^5.0.1",
         "gulp-include": "^2.4.1",
         "gulp-json-editor": "^2.5.6",
@@ -78,266 +77,370 @@
         "node": ">=16"
       }
     },
+    "node_modules/@esbuild/aix-ppc64": {
+      "version": "0.19.11",
+      "resolved": "https://registry.npmjs.org/@esbuild/aix-ppc64/-/aix-ppc64-0.19.11.tgz",
+      "integrity": "sha512-FnzU0LyE3ySQk7UntJO4+qIiQgI7KoODnZg5xzXIrFJlKd2P2gwHsHY4927xj9y5PJmJSzULiUCWmv7iWnNa7g==",
+      "cpu": [
+        "ppc64"
+      ],
+      "dev": true,
+      "optional": true,
+      "os": [
+        "aix"
+      ],
+      "engines": {
+        "node": ">=12"
+      }
+    },
     "node_modules/@esbuild/android-arm": {
-      "version": "0.18.20",
-      "resolved": "https://registry.npmjs.org/@esbuild/android-arm/-/android-arm-0.18.20.tgz",
-      "integrity": "sha512-fyi7TDI/ijKKNZTUJAQqiG5T7YjJXgnzkURqmGj13C6dCqckZBLdl4h7bkhHt/t0WP+zO9/zwroDvANaOqO5Sw==",
-      "cpu": ["arm"],
+      "version": "0.19.11",
+      "resolved": "https://registry.npmjs.org/@esbuild/android-arm/-/android-arm-0.19.11.tgz",
+      "integrity": "sha512-5OVapq0ClabvKvQ58Bws8+wkLCV+Rxg7tUVbo9xu034Nm536QTII4YzhaFriQ7rMrorfnFKUsArD2lqKbFY4vw==",
+      "cpu": [
+        "arm"
+      ],
       "dev": true,
       "optional": true,
-      "os": ["android"],
+      "os": [
+        "android"
+      ],
       "engines": {
         "node": ">=12"
       }
     },
     "node_modules/@esbuild/android-arm64": {
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+      "cpu": [
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+      ],
       "dev": true,
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-      "os": ["android"],
+      "os": [
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+      ],
       "engines": {
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     "node_modules/@esbuild/android-x64": {
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+        "x64"
+      ],
       "dev": true,
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-      "os": ["android"],
+      "os": [
+        "android"
+      ],
       "engines": {
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       }
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     "node_modules/@esbuild/darwin-arm64": {
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       "dev": true,
       "dependencies": {
         "@types/json5": "^0.0.29",
@@ -9917,6 +9944,16 @@
         "spdx-expression-parse": "^3.0.0"
       }
     },
+    "node_modules/validate-npm-package-license/node_modules/spdx-expression-parse": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/spdx-expression-parse/-/spdx-expression-parse-3.0.1.tgz",
+      "integrity": "sha512-cbqHunsQWnJNE6KhVSMsMeH5H/L9EpymbzqTQ3uLwNCLZ1Q481oWaofqH7nO6V07xlXwY6PhQdQ2IedWx/ZK4Q==",
+      "dev": true,
+      "dependencies": {
+        "spdx-exceptions": "^2.1.0",
+        "spdx-license-ids": "^3.0.0"
+      }
+    },
     "node_modules/value-or-function": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/value-or-function/-/value-or-function-3.0.0.tgz",
@@ -10312,9 +10349,9 @@
       "dev": true
     },
     "node_modules/ws": {
-      "version": "8.14.2",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-8.14.2.tgz",
-      "integrity": "sha512-wEBG1ftX4jcglPxgFCMJmZ2PLtSbJ2Peg6TmpJFTbe9GZYOQCDPdMYu/Tm0/bGZkw8paZnJY45J4K2PZrLYq8g==",
+      "version": "8.16.0",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.16.0.tgz",
+      "integrity": "sha512-HS0c//TP7Ina87TfiPUz1rQzMhHrl/SG2guqRcTOIUYD2q8uhUdNHZYJUaQ8aTGPzCh+c6oawMKW35nFl1dxyQ==",
       "engines": {
         "node": ">=10.0.0"
       },
diff --git a/package.json b/package.json
index d39f7d22..7b2ed37c 100644
--- a/package.json
+++ b/package.json
@@ -40,14 +40,13 @@
     "eslint-plugin-es": "^4.1.0",
     "eslint-plugin-html": "^7.1.0",
     "eslint-plugin-import": "^2.26.0",
-    "eslint-plugin-jsdoc": "^46.4.2",
+    "eslint-plugin-jsdoc": "^47.0.2",
     "eslint-plugin-n": "^16.0.1",
     "eslint-plugin-promise": "^6.0.0",
     "eslint-plugin-sonarjs": "^0",
     "gulp": "^4.0.2",
     "gulp-clean-css": "^4.3.0",
-    "gulp-debug": "^4.0.0",
-    "gulp-esbuild": "^0.11.1",
+    "gulp-esbuild": "^0.12.0",
     "gulp-htmlmin": "^5.0.1",
     "gulp-include": "^2.4.1",
     "gulp-json-editor": "^2.5.6",
@@ -86,60 +85,93 @@
   "style": "./front-end/uib-styles.css",
   "types": "index.d.ts",
   "type": "commonjs",
-  "browserslist": ["> 0.5%", "maintained node versions", "last 2 versions", "not dead", "not ie > 0"],
-  "keywords": ["node-red", "ui", "gui", "dashboard", "SPA", "web", "website", "data-driven", "webpage", "web-app"],
+  "browserslist": [
+    "> 0.5%",
+    "maintained node versions",
+    "last 2 versions",
+    "not dead",
+    "not ie > 0"
+  ],
+  "keywords": [
+    "node-red",
+    "ui",
+    "gui",
+    "dashboard",
+    "SPA",
+    "web",
+    "website",
+    "data-driven",
+    "webpage",
+    "web-app"
+  ],
   "homepage": "https://totallyinformation.github.io/node-red-contrib-uibuilder/#/",
   "bugs": "https://github.com/TotallyInformation/node-red-contrib-uibuilder/issues",
   "author": {
     "name": "Julian Knight (TotallyInformation)",
     "url": "https://github.com/TotallyInformation"
   },
-  "contributors": [{
-    "name": "Julian Knight",
-    "url": "https://github.com/TotallyInformation"
-  }, {
-    "name": "Colin Law",
-    "url": "https://github.com/colinl"
-  }, {
-    "name": "Steve Rickus",
-    "url": "https://github.com/shrickus"
-  }, {
-    "name": "Ellie Lee",
-    "url": "https://github.com/ellieejlee"
-  }, {
-    "name": "Thomas Wagner",
-    "url": "https://github.com/Thomseeen"
-  }, {
-    "name": "Arlena Derksen",
-    "url": "https://github.com/boisei0"
-  }, {
-    "name": "cflurin",
-    "url": "https://discourse.nodered.org/u/cflurin"
-  }, {
-    "name": "Scott Page - IndySoft",
-    "url": "https://github.com/scottpageindysoft"
-  }, {
-    "name": "Stephen McLaughlin - Steve-Mcl",
-    "url": "https://discourse.nodered.org/u/Steve-Mcl"
-  }, {
-    "name": "Sergio Rius",
-    "url": "https://github.com/SergioRius"
-  }, {
-    "name": "Thorsten von Eicken",
-    "url": "https://github.com/tve"
-  }, {
-    "name": "meeki007",
-    "url": "https://github.com/meeki007"
-  }, {
-    "name": "talltechdude",
-    "url": "https://github.com/talltechdude"
-  }, {
-    "name": "Harold Peters Inskipp",
-    "url": "https://github.com/HaroldPetersInskipp"
-  }, {
-    "name": "Mudwalker (Colin J)",
-    "url": "https://github.com/mudwalkercj"
-  }],
+  "contributors": [
+    {
+      "name": "Julian Knight",
+      "url": "https://github.com/TotallyInformation"
+    },
+    {
+      "name": "Colin Law",
+      "url": "https://github.com/colinl"
+    },
+    {
+      "name": "Steve Rickus",
+      "url": "https://github.com/shrickus"
+    },
+    {
+      "name": "Ellie Lee",
+      "url": "https://github.com/ellieejlee"
+    },
+    {
+      "name": "Thomas Wagner",
+      "url": "https://github.com/Thomseeen"
+    },
+    {
+      "name": "Arlena Derksen",
+      "url": "https://github.com/boisei0"
+    },
+    {
+      "name": "cflurin",
+      "url": "https://discourse.nodered.org/u/cflurin"
+    },
+    {
+      "name": "Scott Page - IndySoft",
+      "url": "https://github.com/scottpageindysoft"
+    },
+    {
+      "name": "Stephen McLaughlin - Steve-Mcl",
+      "url": "https://discourse.nodered.org/u/Steve-Mcl"
+    },
+    {
+      "name": "Sergio Rius",
+      "url": "https://github.com/SergioRius"
+    },
+    {
+      "name": "Thorsten von Eicken",
+      "url": "https://github.com/tve"
+    },
+    {
+      "name": "meeki007",
+      "url": "https://github.com/meeki007"
+    },
+    {
+      "name": "talltechdude",
+      "url": "https://github.com/talltechdude"
+    },
+    {
+      "name": "Harold Peters Inskipp",
+      "url": "https://github.com/HaroldPetersInskipp"
+    },
+    {
+      "name": "Mudwalker (Colin J)",
+      "url": "https://github.com/mudwalkercj"
+    }
+  ],
   "license": "Apache-2.0",
   "repository": {
     "type": "git",